| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Michael Chan | 58617 | 80.54% | 439 | 59.16% |
| Edwin Peer | 4309 | 5.92% | 44 | 5.93% |
| Vasundhara Volam | 3369 | 4.63% | 69 | 9.30% |
| Andy Gospodarek | 1436 | 1.97% | 18 | 2.43% |
| Prashant Sreedharan | 866 | 1.19% | 7 | 0.94% |
| Pavan Chebbi | 674 | 0.93% | 17 | 2.29% |
| Jakub Kiciński | 554 | 0.76% | 18 | 2.43% |
| Sathya Perla | 541 | 0.74% | 8 | 1.08% |
| Satish Baddipadige | 490 | 0.67% | 3 | 0.40% |
| Vikas Gupta | 157 | 0.22% | 5 | 0.67% |
| Jeffrey Huang | 153 | 0.21% | 5 | 0.67% |
| Scott Branden | 129 | 0.18% | 2 | 0.27% |
| Somnath Kotur | 126 | 0.17% | 6 | 0.81% |
| Deepak Khungar | 107 | 0.15% | 5 | 0.67% |
| Rob Swindell | 96 | 0.13% | 1 | 0.13% |
| Coco Li | 91 | 0.13% | 1 | 0.13% |
| Devesh Sharma | 85 | 0.12% | 1 | 0.13% |
| Jiri Pirko | 81 | 0.11% | 6 | 0.81% |
| Alexander Duyck | 70 | 0.10% | 3 | 0.40% |
| Sankar Patchineelam | 69 | 0.09% | 2 | 0.27% |
| Venkat Duvvuru | 69 | 0.09% | 5 | 0.67% |
| Ajit Khaparde | 68 | 0.09% | 2 | 0.27% |
| Kalesh Purayil | 62 | 0.09% | 2 | 0.27% |
| Eddie Wai | 50 | 0.07% | 2 | 0.27% |
| Ray Jui | 46 | 0.06% | 3 | 0.40% |
| Jesper Dangaard Brouer | 44 | 0.06% | 1 | 0.13% |
| Shannon Nelson | 33 | 0.05% | 1 | 0.13% |
| Heiner Kallweit | 27 | 0.04% | 3 | 0.40% |
| David S. Miller | 24 | 0.03% | 3 | 0.40% |
| Christophe Jaillet | 23 | 0.03% | 3 | 0.40% |
| Rob Miller | 21 | 0.03% | 1 | 0.13% |
| Cui GaoSheng | 20 | 0.03% | 1 | 0.13% |
| David Christensen | 20 | 0.03% | 1 | 0.13% |
| Gustavo A. R. Silva | 17 | 0.02% | 2 | 0.27% |
| Erik Burrows | 16 | 0.02% | 1 | 0.13% |
| Pablo Neira Ayuso | 15 | 0.02% | 2 | 0.27% |
| Sriharsha Basavapatna | 15 | 0.02% | 1 | 0.13% |
| Zhang Changzhong | 15 | 0.02% | 2 | 0.27% |
| Kees Cook | 14 | 0.02% | 1 | 0.13% |
| Eric Dumazet | 13 | 0.02% | 5 | 0.67% |
| Steve Lin | 12 | 0.02% | 1 | 0.13% |
| Jacob E Keller | 11 | 0.02% | 1 | 0.13% |
| Florian Fainelli | 11 | 0.02% | 1 | 0.13% |
| Leon Romanovsky | 11 | 0.02% | 1 | 0.13% |
| Arnd Bergmann | 11 | 0.02% | 2 | 0.27% |
| Amritha Nambiar | 9 | 0.01% | 1 | 0.13% |
| Dan Carpenter | 8 | 0.01% | 3 | 0.40% |
| Alex Barba | 6 | 0.01% | 1 | 0.13% |
| Jonathan Lemon | 6 | 0.01% | 3 | 0.40% |
| Johannes Berg | 5 | 0.01% | 1 | 0.13% |
| Calvin Owens | 4 | 0.01% | 1 | 0.13% |
| Chuhong Yuan | 4 | 0.01% | 1 | 0.13% |
| Michael S. Tsirkin | 4 | 0.01% | 1 | 0.13% |
| Stanislav Fomichev | 4 | 0.01% | 1 | 0.13% |
| Allen Pais | 4 | 0.01% | 1 | 0.13% |
| Colin Ian King | 4 | 0.01% | 1 | 0.13% |
| Florian Westphal | 4 | 0.01% | 1 | 0.13% |
| Rukhsana Ansari | 4 | 0.01% | 1 | 0.13% |
| Tal Gilboa | 3 | 0.00% | 2 | 0.27% |
| Juhee Kang | 3 | 0.00% | 1 | 0.13% |
| John Fastabend | 2 | 0.00% | 1 | 0.13% |
| Yamin Friedman | 2 | 0.00% | 1 | 0.13% |
| Björn Töpel | 2 | 0.00% | 1 | 0.13% |
| Tom Herbert | 2 | 0.00% | 1 | 0.13% |
| Pan Bian | 1 | 0.00% | 1 | 0.13% |
| Zheng Yongjun | 1 | 0.00% | 1 | 0.13% |
| Sinan Kaya | 1 | 0.00% | 1 | 0.13% |
| Matthew Wilcox | 1 | 0.00% | 1 | 0.13% |
| Saurav Girepunje | 1 | 0.00% | 1 | 0.13% |
| Nogah Frankel | 1 | 0.00% | 1 | 0.13% |
| Jiang Jian | 1 | 0.00% | 1 | 0.13% |
| Jason A. Donenfeld | 1 | 0.00% | 1 | 0.13% |
| John Hurley | 1 | 0.00% | 1 | 0.13% |
| Stephen Hemminger | 1 | 0.00% | 1 | 0.13% |
| Total | 72778 | 742 |
/* Broadcom NetXtreme-C/E network driver. * * Copyright (c) 2014-2016 Broadcom Corporation * Copyright (c) 2016-2019 Broadcom Limited * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation. */ #include <linux/module.h> #include <linux/stringify.h> #include <linux/kernel.h> #include <linux/timer.h> #include <linux/errno.h> #include <linux/ioport.h> #include <linux/slab.h> #include <linux/vmalloc.h> #include <linux/interrupt.h> #include <linux/pci.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <linux/dma-mapping.h> #include <linux/bitops.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/delay.h> #include <asm/byteorder.h> #include <asm/page.h> #include <linux/time.h> #include <linux/mii.h> #include <linux/mdio.h> #include <linux/if.h> #include <linux/if_vlan.h> #include <linux/if_bridge.h> #include <linux/rtc.h> #include <linux/bpf.h> #include <net/gro.h> #include <net/ip.h> #include <net/tcp.h> #include <net/udp.h> #include <net/checksum.h> #include <net/ip6_checksum.h> #include <net/udp_tunnel.h> #include <linux/workqueue.h> #include <linux/prefetch.h> #include <linux/cache.h> #include <linux/log2.h> #include <linux/aer.h> #include <linux/bitmap.h> #include <linux/cpu_rmap.h> #include <linux/cpumask.h> #include <net/pkt_cls.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <net/page_pool.h> #include <linux/align.h> #include "bnxt_hsi.h" #include "bnxt.h" #include "bnxt_hwrm.h" #include "bnxt_ulp.h" #include "bnxt_sriov.h" #include "bnxt_ethtool.h" #include "bnxt_dcb.h" #include "bnxt_xdp.h" #include "bnxt_ptp.h" #include "bnxt_vfr.h" #include "bnxt_tc.h" #include "bnxt_devlink.h" #include "bnxt_debugfs.h" #define BNXT_TX_TIMEOUT (5 * HZ) #define BNXT_DEF_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_HW | \ NETIF_MSG_TX_ERR) MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Broadcom BCM573xx network driver"); #define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN) #define BNXT_RX_DMA_OFFSET NET_SKB_PAD #define BNXT_RX_COPY_THRESH 256 #define BNXT_TX_PUSH_THRESH 164 /* indexed by enum board_idx */ static const struct { char *name; } board_info[] = { [BCM57301] = { "Broadcom BCM57301 NetXtreme-C 10Gb Ethernet" }, [BCM57302] = { "Broadcom BCM57302 NetXtreme-C 10Gb/25Gb Ethernet" }, [BCM57304] = { "Broadcom BCM57304 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, [BCM57417_NPAR] = { "Broadcom BCM57417 NetXtreme-E Ethernet Partition" }, [BCM58700] = { "Broadcom BCM58700 Nitro 1Gb/2.5Gb/10Gb Ethernet" }, [BCM57311] = { "Broadcom BCM57311 NetXtreme-C 10Gb Ethernet" }, [BCM57312] = { "Broadcom BCM57312 NetXtreme-C 10Gb/25Gb Ethernet" }, [BCM57402] = { "Broadcom BCM57402 NetXtreme-E 10Gb Ethernet" }, [BCM57404] = { "Broadcom BCM57404 NetXtreme-E 10Gb/25Gb Ethernet" }, [BCM57406] = { "Broadcom BCM57406 NetXtreme-E 10GBase-T Ethernet" }, [BCM57402_NPAR] = { "Broadcom BCM57402 NetXtreme-E Ethernet Partition" }, [BCM57407] = { "Broadcom BCM57407 NetXtreme-E 10GBase-T Ethernet" }, [BCM57412] = { "Broadcom BCM57412 NetXtreme-E 10Gb Ethernet" }, [BCM57414] = { "Broadcom BCM57414 NetXtreme-E 10Gb/25Gb Ethernet" }, [BCM57416] = { "Broadcom BCM57416 NetXtreme-E 10GBase-T Ethernet" }, [BCM57417] = { "Broadcom BCM57417 NetXtreme-E 10GBase-T Ethernet" }, [BCM57412_NPAR] = { "Broadcom BCM57412 NetXtreme-E Ethernet Partition" }, [BCM57314] = { "Broadcom BCM57314 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, [BCM57417_SFP] = { "Broadcom BCM57417 NetXtreme-E 10Gb/25Gb Ethernet" }, [BCM57416_SFP] = { "Broadcom BCM57416 NetXtreme-E 10Gb Ethernet" }, [BCM57404_NPAR] = { "Broadcom BCM57404 NetXtreme-E Ethernet Partition" }, [BCM57406_NPAR] = { "Broadcom BCM57406 NetXtreme-E Ethernet Partition" }, [BCM57407_SFP] = { "Broadcom BCM57407 NetXtreme-E 25Gb Ethernet" }, [BCM57407_NPAR] = { "Broadcom BCM57407 NetXtreme-E Ethernet Partition" }, [BCM57414_NPAR] = { "Broadcom BCM57414 NetXtreme-E Ethernet Partition" }, [BCM57416_NPAR] = { "Broadcom BCM57416 NetXtreme-E Ethernet Partition" }, [BCM57452] = { "Broadcom BCM57452 NetXtreme-E 10Gb/25Gb/40Gb/50Gb Ethernet" }, [BCM57454] = { "Broadcom BCM57454 NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, [BCM5745x_NPAR] = { "Broadcom BCM5745x NetXtreme-E Ethernet Partition" }, [BCM57508] = { "Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" }, [BCM57504] = { "Broadcom BCM57504 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" }, [BCM57502] = { "Broadcom BCM57502 NetXtreme-E 10Gb/25Gb/50Gb Ethernet" }, [BCM57508_NPAR] = { "Broadcom BCM57508 NetXtreme-E Ethernet Partition" }, [BCM57504_NPAR] = { "Broadcom BCM57504 NetXtreme-E Ethernet Partition" }, [BCM57502_NPAR] = { "Broadcom BCM57502 NetXtreme-E Ethernet Partition" }, [BCM58802] = { "Broadcom BCM58802 NetXtreme-S 10Gb/25Gb/40Gb/50Gb Ethernet" }, [BCM58804] = { "Broadcom BCM58804 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, [BCM58808] = { "Broadcom BCM58808 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, [NETXTREME_E_VF] = { "Broadcom NetXtreme-E Ethernet Virtual Function" }, [NETXTREME_C_VF] = { "Broadcom NetXtreme-C Ethernet Virtual Function" }, [NETXTREME_S_VF] = { "Broadcom NetXtreme-S Ethernet Virtual Function" }, [NETXTREME_C_VF_HV] = { "Broadcom NetXtreme-C Virtual Function for Hyper-V" }, [NETXTREME_E_VF_HV] = { "Broadcom NetXtreme-E Virtual Function for Hyper-V" }, [NETXTREME_E_P5_VF] = { "Broadcom BCM5750X NetXtreme-E Ethernet Virtual Function" }, [NETXTREME_E_P5_VF_HV] = { "Broadcom BCM5750X NetXtreme-E Virtual Function for Hyper-V" }, }; static const struct pci_device_id bnxt_pci_tbl[] = { { PCI_VDEVICE(BROADCOM, 0x1604), .driver_data = BCM5745x_NPAR }, { PCI_VDEVICE(BROADCOM, 0x1605), .driver_data = BCM5745x_NPAR }, { PCI_VDEVICE(BROADCOM, 0x1614), .driver_data = BCM57454 }, { PCI_VDEVICE(BROADCOM, 0x16c0), .driver_data = BCM57417_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16c8), .driver_data = BCM57301 }, { PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 }, { PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 }, { PCI_VDEVICE(BROADCOM, 0x16cc), .driver_data = BCM57417_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16cd), .driver_data = BCM58700 }, { PCI_VDEVICE(BROADCOM, 0x16ce), .driver_data = BCM57311 }, { PCI_VDEVICE(BROADCOM, 0x16cf), .driver_data = BCM57312 }, { PCI_VDEVICE(BROADCOM, 0x16d0), .driver_data = BCM57402 }, { PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 }, { PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 }, { PCI_VDEVICE(BROADCOM, 0x16d4), .driver_data = BCM57402_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16d5), .driver_data = BCM57407 }, { PCI_VDEVICE(BROADCOM, 0x16d6), .driver_data = BCM57412 }, { PCI_VDEVICE(BROADCOM, 0x16d7), .driver_data = BCM57414 }, { PCI_VDEVICE(BROADCOM, 0x16d8), .driver_data = BCM57416 }, { PCI_VDEVICE(BROADCOM, 0x16d9), .driver_data = BCM57417 }, { PCI_VDEVICE(BROADCOM, 0x16de), .driver_data = BCM57412_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16df), .driver_data = BCM57314 }, { PCI_VDEVICE(BROADCOM, 0x16e2), .driver_data = BCM57417_SFP }, { PCI_VDEVICE(BROADCOM, 0x16e3), .driver_data = BCM57416_SFP }, { PCI_VDEVICE(BROADCOM, 0x16e7), .driver_data = BCM57404_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16e8), .driver_data = BCM57406_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16e9), .driver_data = BCM57407_SFP }, { PCI_VDEVICE(BROADCOM, 0x16ea), .driver_data = BCM57407_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16eb), .driver_data = BCM57412_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16ec), .driver_data = BCM57414_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16ed), .driver_data = BCM57414_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16ee), .driver_data = BCM57416_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16ef), .driver_data = BCM57416_NPAR }, { PCI_VDEVICE(BROADCOM, 0x16f0), .driver_data = BCM58808 }, { PCI_VDEVICE(BROADCOM, 0x16f1), .driver_data = BCM57452 }, { PCI_VDEVICE(BROADCOM, 0x1750), .driver_data = BCM57508 }, { PCI_VDEVICE(BROADCOM, 0x1751), .driver_data = BCM57504 }, { PCI_VDEVICE(BROADCOM, 0x1752), .driver_data = BCM57502 }, { PCI_VDEVICE(BROADCOM, 0x1800), .driver_data = BCM57508_NPAR }, { PCI_VDEVICE(BROADCOM, 0x1801), .driver_data = BCM57504_NPAR }, { PCI_VDEVICE(BROADCOM, 0x1802), .driver_data = BCM57502_NPAR }, { PCI_VDEVICE(BROADCOM, 0x1803), .driver_data = BCM57508_NPAR }, { PCI_VDEVICE(BROADCOM, 0x1804), .driver_data = BCM57504_NPAR }, { PCI_VDEVICE(BROADCOM, 0x1805), .driver_data = BCM57502_NPAR }, { PCI_VDEVICE(BROADCOM, 0xd802), .driver_data = BCM58802 }, { PCI_VDEVICE(BROADCOM, 0xd804), .driver_data = BCM58804 }, #ifdef CONFIG_BNXT_SRIOV { PCI_VDEVICE(BROADCOM, 0x1606), .driver_data = NETXTREME_E_VF }, { PCI_VDEVICE(BROADCOM, 0x1607), .driver_data = NETXTREME_E_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x1608), .driver_data = NETXTREME_E_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x1609), .driver_data = NETXTREME_E_VF }, { PCI_VDEVICE(BROADCOM, 0x16bd), .driver_data = NETXTREME_E_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x16c1), .driver_data = NETXTREME_E_VF }, { PCI_VDEVICE(BROADCOM, 0x16c2), .driver_data = NETXTREME_C_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x16c3), .driver_data = NETXTREME_C_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x16c4), .driver_data = NETXTREME_E_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x16c5), .driver_data = NETXTREME_E_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = NETXTREME_C_VF }, { PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = NETXTREME_E_VF }, { PCI_VDEVICE(BROADCOM, 0x16dc), .driver_data = NETXTREME_E_VF }, { PCI_VDEVICE(BROADCOM, 0x16e1), .driver_data = NETXTREME_C_VF }, { PCI_VDEVICE(BROADCOM, 0x16e5), .driver_data = NETXTREME_C_VF }, { PCI_VDEVICE(BROADCOM, 0x16e6), .driver_data = NETXTREME_C_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x1806), .driver_data = NETXTREME_E_P5_VF }, { PCI_VDEVICE(BROADCOM, 0x1807), .driver_data = NETXTREME_E_P5_VF }, { PCI_VDEVICE(BROADCOM, 0x1808), .driver_data = NETXTREME_E_P5_VF_HV }, { PCI_VDEVICE(BROADCOM, 0x1809), .driver_data = NETXTREME_E_P5_VF_HV }, { PCI_VDEVICE(BROADCOM, 0xd800), .driver_data = NETXTREME_S_VF }, #endif { 0 } }; MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl); static const u16 bnxt_vf_req_snif[] = { HWRM_FUNC_CFG, HWRM_FUNC_VF_CFG, HWRM_PORT_PHY_QCFG, HWRM_CFA_L2_FILTER_ALLOC, }; static const u16 bnxt_async_events_arr[] = { ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE, ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE, ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD, ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED, ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE, ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE, ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE, ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY, ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY, ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION, ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE, ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG, ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST, ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP, ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT, ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE, }; static struct workqueue_struct *bnxt_pf_wq; static bool bnxt_vf_pciid(enum board_idx idx) { return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF || idx == NETXTREME_S_VF || idx == NETXTREME_C_VF_HV || idx == NETXTREME_E_VF_HV || idx == NETXTREME_E_P5_VF || idx == NETXTREME_E_P5_VF_HV); } #define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID) #define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS) #define DB_CP_IRQ_DIS_FLAGS (DB_KEY_CP | DB_IRQ_DIS) #define BNXT_CP_DB_IRQ_DIS(db) \ writel(DB_CP_IRQ_DIS_FLAGS, db) #define BNXT_DB_CQ(db, idx) \ writel(DB_CP_FLAGS | RING_CMP(idx), (db)->doorbell) #define BNXT_DB_NQ_P5(db, idx) \ bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ | RING_CMP(idx), \ (db)->doorbell) #define BNXT_DB_CQ_ARM(db, idx) \ writel(DB_CP_REARM_FLAGS | RING_CMP(idx), (db)->doorbell) #define BNXT_DB_NQ_ARM_P5(db, idx) \ bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ_ARM | RING_CMP(idx),\ (db)->doorbell) static void bnxt_db_nq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) { if (bp->flags & BNXT_FLAG_CHIP_P5) BNXT_DB_NQ_P5(db, idx); else BNXT_DB_CQ(db, idx); } static void bnxt_db_nq_arm(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) { if (bp->flags & BNXT_FLAG_CHIP_P5) BNXT_DB_NQ_ARM_P5(db, idx); else BNXT_DB_CQ_ARM(db, idx); } static void bnxt_db_cq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx) { if (bp->flags & BNXT_FLAG_CHIP_P5) bnxt_writeq(bp, db->db_key64 | DBR_TYPE_CQ_ARMALL | RING_CMP(idx), db->doorbell); else BNXT_DB_CQ(db, idx); } const u16 bnxt_lhint_arr[] = { TX_BD_FLAGS_LHINT_512_AND_SMALLER, TX_BD_FLAGS_LHINT_512_TO_1023, TX_BD_FLAGS_LHINT_1024_TO_2047, TX_BD_FLAGS_LHINT_1024_TO_2047, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, TX_BD_FLAGS_LHINT_2048_AND_LARGER, }; static u16 bnxt_xmit_get_cfa_action(struct sk_buff *skb) { struct metadata_dst *md_dst = skb_metadata_dst(skb); if (!md_dst || md_dst->type != METADATA_HW_PORT_MUX) return 0; return md_dst->u.port_info.port_id; } static void bnxt_txr_db_kick(struct bnxt *bp, struct bnxt_tx_ring_info *txr, u16 prod) { bnxt_db_write(bp, &txr->tx_db, prod); txr->kick_pending = 0; } static bool bnxt_txr_netif_try_stop_queue(struct bnxt *bp, struct bnxt_tx_ring_info *txr, struct netdev_queue *txq) { netif_tx_stop_queue(txq); /* netif_tx_stop_queue() must be done before checking * tx index in bnxt_tx_avail() below, because in * bnxt_tx_int(), we update tx index before checking for * netif_tx_queue_stopped(). */ smp_mb(); if (bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh) { netif_tx_wake_queue(txq); return false; } return true; } static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct bnxt *bp = netdev_priv(dev); struct tx_bd *txbd; struct tx_bd_ext *txbd1; struct netdev_queue *txq; int i; dma_addr_t mapping; unsigned int length, pad = 0; u32 len, free_size, vlan_tag_flags, cfa_action, flags; u16 prod, last_frag; struct pci_dev *pdev = bp->pdev; struct bnxt_tx_ring_info *txr; struct bnxt_sw_tx_bd *tx_buf; __le32 lflags = 0; i = skb_get_queue_mapping(skb); if (unlikely(i >= bp->tx_nr_rings)) { dev_kfree_skb_any(skb); dev_core_stats_tx_dropped_inc(dev); return NETDEV_TX_OK; } txq = netdev_get_tx_queue(dev, i); txr = &bp->tx_ring[bp->tx_ring_map[i]]; prod = txr->tx_prod; free_size = bnxt_tx_avail(bp, txr); if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) { /* We must have raced with NAPI cleanup */ if (net_ratelimit() && txr->kick_pending) netif_warn(bp, tx_err, dev, "bnxt: ring busy w/ flush pending!\n"); if (bnxt_txr_netif_try_stop_queue(bp, txr, txq)) return NETDEV_TX_BUSY; } if (unlikely(ipv6_hopopt_jumbo_remove(skb))) goto tx_free; length = skb->len; len = skb_headlen(skb); last_frag = skb_shinfo(skb)->nr_frags; txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; txbd->tx_bd_opaque = prod; tx_buf = &txr->tx_buf_ring[prod]; tx_buf->skb = skb; tx_buf->nr_frags = last_frag; vlan_tag_flags = 0; cfa_action = bnxt_xmit_get_cfa_action(skb); if (skb_vlan_tag_present(skb)) { vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN | skb_vlan_tag_get(skb); /* Currently supports 8021Q, 8021AD vlan offloads * QINQ1, QINQ2, QINQ3 vlan headers are deprecated */ if (skb->vlan_proto == htons(ETH_P_8021Q)) vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT; } if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; if (ptp && ptp->tx_tstamp_en && !skb_is_gso(skb) && atomic_dec_if_positive(&ptp->tx_avail) >= 0) { if (!bnxt_ptp_parse(skb, &ptp->tx_seqid, &ptp->tx_hdr_off)) { if (vlan_tag_flags) ptp->tx_hdr_off += VLAN_HLEN; lflags |= cpu_to_le32(TX_BD_FLAGS_STAMP); skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; } else { atomic_inc(&bp->ptp_cfg->tx_avail); } } } if (unlikely(skb->no_fcs)) lflags |= cpu_to_le32(TX_BD_FLAGS_NO_CRC); if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh && !lflags) { struct tx_push_buffer *tx_push_buf = txr->tx_push; struct tx_push_bd *tx_push = &tx_push_buf->push_bd; struct tx_bd_ext *tx_push1 = &tx_push->txbd2; void __iomem *db = txr->tx_db.doorbell; void *pdata = tx_push_buf->data; u64 *end; int j, push_len; /* Set COAL_NOW to be ready quickly for the next push */ tx_push->tx_bd_len_flags_type = cpu_to_le32((length << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD | TX_BD_FLAGS_LHINT_512_AND_SMALLER | TX_BD_FLAGS_COAL_NOW | TX_BD_FLAGS_PACKET_END | (2 << TX_BD_FLAGS_BD_CNT_SHIFT)); if (skb->ip_summed == CHECKSUM_PARTIAL) tx_push1->tx_bd_hsize_lflags = cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); else tx_push1->tx_bd_hsize_lflags = 0; tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags); tx_push1->tx_bd_cfa_action = cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT); end = pdata + length; end = PTR_ALIGN(end, 8) - 1; *end = 0; skb_copy_from_linear_data(skb, pdata, len); pdata += len; for (j = 0; j < last_frag; j++) { skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; void *fptr; fptr = skb_frag_address_safe(frag); if (!fptr) goto normal_tx; memcpy(pdata, fptr, skb_frag_size(frag)); pdata += skb_frag_size(frag); } txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type; txbd->tx_bd_haddr = txr->data_mapping; prod = NEXT_TX(prod); txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; memcpy(txbd, tx_push1, sizeof(*txbd)); prod = NEXT_TX(prod); tx_push->doorbell = cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod); txr->tx_prod = prod; tx_buf->is_push = 1; netdev_tx_sent_queue(txq, skb->len); wmb(); /* Sync is_push and byte queue before pushing data */ push_len = (length + sizeof(*tx_push) + 7) / 8; if (push_len > 16) { __iowrite64_copy(db, tx_push_buf, 16); __iowrite32_copy(db + 4, tx_push_buf + 1, (push_len - 16) << 1); } else { __iowrite64_copy(db, tx_push_buf, push_len); } goto tx_done; } normal_tx: if (length < BNXT_MIN_PKT_SIZE) { pad = BNXT_MIN_PKT_SIZE - length; if (skb_pad(skb, pad)) /* SKB already freed. */ goto tx_kick_pending; length = BNXT_MIN_PKT_SIZE; } mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(&pdev->dev, mapping))) goto tx_free; dma_unmap_addr_set(tx_buf, mapping, mapping); flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD | ((last_frag + 2) << TX_BD_FLAGS_BD_CNT_SHIFT); txbd->tx_bd_haddr = cpu_to_le64(mapping); prod = NEXT_TX(prod); txbd1 = (struct tx_bd_ext *) &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; txbd1->tx_bd_hsize_lflags = lflags; if (skb_is_gso(skb)) { u32 hdr_len; if (skb->encapsulation) hdr_len = skb_inner_tcp_all_headers(skb); else hdr_len = skb_tcp_all_headers(skb); txbd1->tx_bd_hsize_lflags |= cpu_to_le32(TX_BD_FLAGS_LSO | TX_BD_FLAGS_T_IPID | (hdr_len << (TX_BD_HSIZE_SHIFT - 1))); length = skb_shinfo(skb)->gso_size; txbd1->tx_bd_mss = cpu_to_le32(length); length += hdr_len; } else if (skb->ip_summed == CHECKSUM_PARTIAL) { txbd1->tx_bd_hsize_lflags |= cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); txbd1->tx_bd_mss = 0; } length >>= 9; if (unlikely(length >= ARRAY_SIZE(bnxt_lhint_arr))) { dev_warn_ratelimited(&pdev->dev, "Dropped oversize %d bytes TX packet.\n", skb->len); i = 0; goto tx_dma_error; } flags |= bnxt_lhint_arr[length]; txbd->tx_bd_len_flags_type = cpu_to_le32(flags); txbd1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags); txbd1->tx_bd_cfa_action = cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT); for (i = 0; i < last_frag; i++) { skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; prod = NEXT_TX(prod); txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; len = skb_frag_size(frag); mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(&pdev->dev, mapping))) goto tx_dma_error; tx_buf = &txr->tx_buf_ring[prod]; dma_unmap_addr_set(tx_buf, mapping, mapping); txbd->tx_bd_haddr = cpu_to_le64(mapping); flags = len << TX_BD_LEN_SHIFT; txbd->tx_bd_len_flags_type = cpu_to_le32(flags); } flags &= ~TX_BD_LEN; txbd->tx_bd_len_flags_type = cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags | TX_BD_FLAGS_PACKET_END); netdev_tx_sent_queue(txq, skb->len); skb_tx_timestamp(skb); /* Sync BD data before updating doorbell */ wmb(); prod = NEXT_TX(prod); txr->tx_prod = prod; if (!netdev_xmit_more() || netif_xmit_stopped(txq)) bnxt_txr_db_kick(bp, txr, prod); else txr->kick_pending = 1; tx_done: if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) { if (netdev_xmit_more() && !tx_buf->is_push) bnxt_txr_db_kick(bp, txr, prod); bnxt_txr_netif_try_stop_queue(bp, txr, txq); } return NETDEV_TX_OK; tx_dma_error: if (BNXT_TX_PTP_IS_SET(lflags)) atomic_inc(&bp->ptp_cfg->tx_avail); last_frag = i; /* start back at beginning and unmap skb */ prod = txr->tx_prod; tx_buf = &txr->tx_buf_ring[prod]; dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), skb_headlen(skb), DMA_TO_DEVICE); prod = NEXT_TX(prod); /* unmap remaining mapped pages */ for (i = 0; i < last_frag; i++) { prod = NEXT_TX(prod); tx_buf = &txr->tx_buf_ring[prod]; dma_unmap_page(&pdev->dev, dma_unmap_addr(tx_buf, mapping), skb_frag_size(&skb_shinfo(skb)->frags[i]), DMA_TO_DEVICE); } tx_free: dev_kfree_skb_any(skb); tx_kick_pending: if (txr->kick_pending) bnxt_txr_db_kick(bp, txr, txr->tx_prod); txr->tx_buf_ring[txr->tx_prod].skb = NULL; dev_core_stats_tx_dropped_inc(dev); return NETDEV_TX_OK; } static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts) { struct bnxt_tx_ring_info *txr = bnapi->tx_ring; struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, txr->txq_index); u16 cons = txr->tx_cons; struct pci_dev *pdev = bp->pdev; int i; unsigned int tx_bytes = 0; for (i = 0; i < nr_pkts; i++) { struct bnxt_sw_tx_bd *tx_buf; struct sk_buff *skb; int j, last; tx_buf = &txr->tx_buf_ring[cons]; cons = NEXT_TX(cons); skb = tx_buf->skb; tx_buf->skb = NULL; tx_bytes += skb->len; if (tx_buf->is_push) { tx_buf->is_push = 0; goto next_tx_int; } dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), skb_headlen(skb), DMA_TO_DEVICE); last = tx_buf->nr_frags; for (j = 0; j < last; j++) { cons = NEXT_TX(cons); tx_buf = &txr->tx_buf_ring[cons]; dma_unmap_page( &pdev->dev, dma_unmap_addr(tx_buf, mapping), skb_frag_size(&skb_shinfo(skb)->frags[j]), DMA_TO_DEVICE); } if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS)) { if (bp->flags & BNXT_FLAG_CHIP_P5) { /* PTP worker takes ownership of the skb */ if (!bnxt_get_tx_ts_p5(bp, skb)) skb = NULL; else atomic_inc(&bp->ptp_cfg->tx_avail); } } next_tx_int: cons = NEXT_TX(cons); dev_kfree_skb_any(skb); } netdev_tx_completed_queue(txq, nr_pkts, tx_bytes); txr->tx_cons = cons; /* Need to make the tx_cons update visible to bnxt_start_xmit() * before checking for netif_tx_queue_stopped(). Without the * memory barrier, there is a small possibility that bnxt_start_xmit() * will miss it and cause the queue to be stopped forever. */ smp_mb(); if (unlikely(netif_tx_queue_stopped(txq)) && bnxt_tx_avail(bp, txr) >= bp->tx_wake_thresh && READ_ONCE(txr->dev_state) != BNXT_DEV_STATE_CLOSING) netif_tx_wake_queue(txq); } static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping, struct bnxt_rx_ring_info *rxr, gfp_t gfp) { struct device *dev = &bp->pdev->dev; struct page *page; page = page_pool_dev_alloc_pages(rxr->page_pool); if (!page) return NULL; *mapping = dma_map_page_attrs(dev, page, 0, PAGE_SIZE, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); if (dma_mapping_error(dev, *mapping)) { page_pool_recycle_direct(rxr->page_pool, page); return NULL; } return page; } static inline u8 *__bnxt_alloc_rx_frag(struct bnxt *bp, dma_addr_t *mapping, gfp_t gfp) { u8 *data; struct pci_dev *pdev = bp->pdev; if (gfp == GFP_ATOMIC) data = napi_alloc_frag(bp->rx_buf_size); else data = netdev_alloc_frag(bp->rx_buf_size); if (!data) return NULL; *mapping = dma_map_single_attrs(&pdev->dev, data + bp->rx_dma_offset, bp->rx_buf_use_size, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); if (dma_mapping_error(&pdev->dev, *mapping)) { skb_free_frag(data); data = NULL; } return data; } int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 prod, gfp_t gfp) { struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod]; dma_addr_t mapping; if (BNXT_RX_PAGE_MODE(bp)) { struct page *page = __bnxt_alloc_rx_page(bp, &mapping, rxr, gfp); if (!page) return -ENOMEM; mapping += bp->rx_dma_offset; rx_buf->data = page; rx_buf->data_ptr = page_address(page) + bp->rx_offset; } else { u8 *data = __bnxt_alloc_rx_frag(bp, &mapping, gfp); if (!data) return -ENOMEM; rx_buf->data = data; rx_buf->data_ptr = data + bp->rx_offset; } rx_buf->mapping = mapping; rxbd->rx_bd_haddr = cpu_to_le64(mapping); return 0; } void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data) { u16 prod = rxr->rx_prod; struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; struct rx_bd *cons_bd, *prod_bd; prod_rx_buf = &rxr->rx_buf_ring[prod]; cons_rx_buf = &rxr->rx_buf_ring[cons]; prod_rx_buf->data = data; prod_rx_buf->data_ptr = cons_rx_buf->data_ptr; prod_rx_buf->mapping = cons_rx_buf->mapping; prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)]; prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr; } static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx) { u16 next, max = rxr->rx_agg_bmap_size; next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx); if (next >= max) next = find_first_zero_bit(rxr->rx_agg_bmap, max); return next; } static inline int bnxt_alloc_rx_page(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 prod, gfp_t gfp) { struct rx_bd *rxbd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)]; struct bnxt_sw_rx_agg_bd *rx_agg_buf; struct pci_dev *pdev = bp->pdev; struct page *page; dma_addr_t mapping; u16 sw_prod = rxr->rx_sw_agg_prod; unsigned int offset = 0; if (BNXT_RX_PAGE_MODE(bp)) { page = __bnxt_alloc_rx_page(bp, &mapping, rxr, gfp); if (!page) return -ENOMEM; } else { if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) { page = rxr->rx_page; if (!page) { page = alloc_page(gfp); if (!page) return -ENOMEM; rxr->rx_page = page; rxr->rx_page_offset = 0; } offset = rxr->rx_page_offset; rxr->rx_page_offset += BNXT_RX_PAGE_SIZE; if (rxr->rx_page_offset == PAGE_SIZE) rxr->rx_page = NULL; else get_page(page); } else { page = alloc_page(gfp); if (!page) return -ENOMEM; } mapping = dma_map_page_attrs(&pdev->dev, page, offset, BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, DMA_ATTR_WEAK_ORDERING); if (dma_mapping_error(&pdev->dev, mapping)) { __free_page(page); return -EIO; } } if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); __set_bit(sw_prod, rxr->rx_agg_bmap); rx_agg_buf = &rxr->rx_agg_ring[sw_prod]; rxr->rx_sw_agg_prod = NEXT_RX_AGG(sw_prod); rx_agg_buf->page = page; rx_agg_buf->offset = offset; rx_agg_buf->mapping = mapping; rxbd->rx_bd_haddr = cpu_to_le64(mapping); rxbd->rx_bd_opaque = sw_prod; return 0; } static struct rx_agg_cmp *bnxt_get_agg(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u16 cp_cons, u16 curr) { struct rx_agg_cmp *agg; cp_cons = RING_CMP(ADV_RAW_CMP(cp_cons, curr)); agg = (struct rx_agg_cmp *) &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; return agg; } static struct rx_agg_cmp *bnxt_get_tpa_agg_p5(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 agg_id, u16 curr) { struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[agg_id]; return &tpa_info->agg_arr[curr]; } static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx, u16 start, u32 agg_bufs, bool tpa) { struct bnxt_napi *bnapi = cpr->bnapi; struct bnxt *bp = bnapi->bp; struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; u16 prod = rxr->rx_agg_prod; u16 sw_prod = rxr->rx_sw_agg_prod; bool p5_tpa = false; u32 i; if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa) p5_tpa = true; for (i = 0; i < agg_bufs; i++) { u16 cons; struct rx_agg_cmp *agg; struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf; struct rx_bd *prod_bd; struct page *page; if (p5_tpa) agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, start + i); else agg = bnxt_get_agg(bp, cpr, idx, start + i); cons = agg->rx_agg_cmp_opaque; __clear_bit(cons, rxr->rx_agg_bmap); if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); __set_bit(sw_prod, rxr->rx_agg_bmap); prod_rx_buf = &rxr->rx_agg_ring[sw_prod]; cons_rx_buf = &rxr->rx_agg_ring[cons]; /* It is possible for sw_prod to be equal to cons, so * set cons_rx_buf->page to NULL first. */ page = cons_rx_buf->page; cons_rx_buf->page = NULL; prod_rx_buf->page = page; prod_rx_buf->offset = cons_rx_buf->offset; prod_rx_buf->mapping = cons_rx_buf->mapping; prod_bd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)]; prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping); prod_bd->rx_bd_opaque = sw_prod; prod = NEXT_RX_AGG(prod); sw_prod = NEXT_RX_AGG(sw_prod); } rxr->rx_agg_prod = prod; rxr->rx_sw_agg_prod = sw_prod; } static struct sk_buff *bnxt_rx_multi_page_skb(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons, void *data, u8 *data_ptr, dma_addr_t dma_addr, unsigned int offset_and_len) { unsigned int len = offset_and_len & 0xffff; struct page *page = data; u16 prod = rxr->rx_prod; struct sk_buff *skb; int err; err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); if (unlikely(err)) { bnxt_reuse_rx_data(rxr, cons, data); return NULL; } dma_addr -= bp->rx_dma_offset; dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); skb = build_skb(page_address(page), PAGE_SIZE); if (!skb) { page_pool_recycle_direct(rxr->page_pool, page); return NULL; } skb_mark_for_recycle(skb); skb_reserve(skb, bp->rx_dma_offset); __skb_put(skb, len); return skb; } static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons, void *data, u8 *data_ptr, dma_addr_t dma_addr, unsigned int offset_and_len) { unsigned int payload = offset_and_len >> 16; unsigned int len = offset_and_len & 0xffff; skb_frag_t *frag; struct page *page = data; u16 prod = rxr->rx_prod; struct sk_buff *skb; int off, err; err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); if (unlikely(err)) { bnxt_reuse_rx_data(rxr, cons, data); return NULL; } dma_addr -= bp->rx_dma_offset; dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); if (unlikely(!payload)) payload = eth_get_headlen(bp->dev, data_ptr, len); skb = napi_alloc_skb(&rxr->bnapi->napi, payload); if (!skb) { page_pool_recycle_direct(rxr->page_pool, page); return NULL; } skb_mark_for_recycle(skb); off = (void *)data_ptr - page_address(page); skb_add_rx_frag(skb, 0, page, off, len, PAGE_SIZE); memcpy(skb->data - NET_IP_ALIGN, data_ptr - NET_IP_ALIGN, payload + NET_IP_ALIGN); frag = &skb_shinfo(skb)->frags[0]; skb_frag_size_sub(frag, payload); skb_frag_off_add(frag, payload); skb->data_len -= payload; skb->tail += payload; return skb; } static struct sk_buff *bnxt_rx_skb(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons, void *data, u8 *data_ptr, dma_addr_t dma_addr, unsigned int offset_and_len) { u16 prod = rxr->rx_prod; struct sk_buff *skb; int err; err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); if (unlikely(err)) { bnxt_reuse_rx_data(rxr, cons, data); return NULL; } skb = build_skb(data, bp->rx_buf_size); dma_unmap_single_attrs(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); if (!skb) { skb_free_frag(data); return NULL; } skb_reserve(skb, bp->rx_offset); skb_put(skb, offset_and_len & 0xffff); return skb; } static u32 __bnxt_rx_agg_pages(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, struct skb_shared_info *shinfo, u16 idx, u32 agg_bufs, bool tpa, struct xdp_buff *xdp) { struct bnxt_napi *bnapi = cpr->bnapi; struct pci_dev *pdev = bp->pdev; struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; u16 prod = rxr->rx_agg_prod; u32 i, total_frag_len = 0; bool p5_tpa = false; if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa) p5_tpa = true; for (i = 0; i < agg_bufs; i++) { skb_frag_t *frag = &shinfo->frags[i]; u16 cons, frag_len; struct rx_agg_cmp *agg; struct bnxt_sw_rx_agg_bd *cons_rx_buf; struct page *page; dma_addr_t mapping; if (p5_tpa) agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, i); else agg = bnxt_get_agg(bp, cpr, idx, i); cons = agg->rx_agg_cmp_opaque; frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) & RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT; cons_rx_buf = &rxr->rx_agg_ring[cons]; skb_frag_off_set(frag, cons_rx_buf->offset); skb_frag_size_set(frag, frag_len); __skb_frag_set_page(frag, cons_rx_buf->page); shinfo->nr_frags = i + 1; __clear_bit(cons, rxr->rx_agg_bmap); /* It is possible for bnxt_alloc_rx_page() to allocate * a sw_prod index that equals the cons index, so we * need to clear the cons entry now. */ mapping = cons_rx_buf->mapping; page = cons_rx_buf->page; cons_rx_buf->page = NULL; if (xdp && page_is_pfmemalloc(page)) xdp_buff_set_frag_pfmemalloc(xdp); if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) { unsigned int nr_frags; nr_frags = --shinfo->nr_frags; __skb_frag_set_page(&shinfo->frags[nr_frags], NULL); cons_rx_buf->page = page; /* Update prod since possibly some pages have been * allocated already. */ rxr->rx_agg_prod = prod; bnxt_reuse_rx_agg_bufs(cpr, idx, i, agg_bufs - i, tpa); return 0; } dma_unmap_page_attrs(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); total_frag_len += frag_len; prod = NEXT_RX_AGG(prod); } rxr->rx_agg_prod = prod; return total_frag_len; } static struct sk_buff *bnxt_rx_agg_pages_skb(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, struct sk_buff *skb, u16 idx, u32 agg_bufs, bool tpa) { struct skb_shared_info *shinfo = skb_shinfo(skb); u32 total_frag_len = 0; total_frag_len = __bnxt_rx_agg_pages(bp, cpr, shinfo, idx, agg_bufs, tpa, NULL); if (!total_frag_len) { dev_kfree_skb(skb); return NULL; } skb->data_len += total_frag_len; skb->len += total_frag_len; skb->truesize += PAGE_SIZE * agg_bufs; return skb; } static u32 bnxt_rx_agg_pages_xdp(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, struct xdp_buff *xdp, u16 idx, u32 agg_bufs, bool tpa) { struct skb_shared_info *shinfo = xdp_get_shared_info_from_buff(xdp); u32 total_frag_len = 0; if (!xdp_buff_has_frags(xdp)) shinfo->nr_frags = 0; total_frag_len = __bnxt_rx_agg_pages(bp, cpr, shinfo, idx, agg_bufs, tpa, xdp); if (total_frag_len) { xdp_buff_set_frags_flag(xdp); shinfo->nr_frags = agg_bufs; shinfo->xdp_frags_size = total_frag_len; } return total_frag_len; } static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u8 agg_bufs, u32 *raw_cons) { u16 last; struct rx_agg_cmp *agg; *raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs); last = RING_CMP(*raw_cons); agg = (struct rx_agg_cmp *) &cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)]; return RX_AGG_CMP_VALID(agg, *raw_cons); } static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data, unsigned int len, dma_addr_t mapping) { struct bnxt *bp = bnapi->bp; struct pci_dev *pdev = bp->pdev; struct sk_buff *skb; skb = napi_alloc_skb(&bnapi->napi, len); if (!skb) return NULL; dma_sync_single_for_cpu(&pdev->dev, mapping, bp->rx_copy_thresh, bp->rx_dir); memcpy(skb->data - NET_IP_ALIGN, data - NET_IP_ALIGN, len + NET_IP_ALIGN); dma_sync_single_for_device(&pdev->dev, mapping, bp->rx_copy_thresh, bp->rx_dir); skb_put(skb, len); return skb; } static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u32 *raw_cons, void *cmp) { struct rx_cmp *rxcmp = cmp; u32 tmp_raw_cons = *raw_cons; u8 cmp_type, agg_bufs = 0; cmp_type = RX_CMP_TYPE(rxcmp); if (cmp_type == CMP_TYPE_RX_L2_CMP) { agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT; } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { struct rx_tpa_end_cmp *tpa_end = cmp; if (bp->flags & BNXT_FLAG_CHIP_P5) return 0; agg_bufs = TPA_END_AGG_BUFS(tpa_end); } if (agg_bufs) { if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) return -EBUSY; } *raw_cons = tmp_raw_cons; return 0; } static void bnxt_queue_fw_reset_work(struct bnxt *bp, unsigned long delay) { if (!(test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))) return; if (BNXT_PF(bp)) queue_delayed_work(bnxt_pf_wq, &bp->fw_reset_task, delay); else schedule_delayed_work(&bp->fw_reset_task, delay); } static void bnxt_queue_sp_work(struct bnxt *bp) { if (BNXT_PF(bp)) queue_work(bnxt_pf_wq, &bp->sp_task); else schedule_work(&bp->sp_task); } static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) { if (!rxr->bnapi->in_reset) { rxr->bnapi->in_reset = true; if (bp->flags & BNXT_FLAG_CHIP_P5) set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); else set_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } rxr->rx_next_cons = 0xffff; } static u16 bnxt_alloc_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id) { struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; u16 idx = agg_id & MAX_TPA_P5_MASK; if (test_bit(idx, map->agg_idx_bmap)) idx = find_first_zero_bit(map->agg_idx_bmap, BNXT_AGG_IDX_BMAP_SIZE); __set_bit(idx, map->agg_idx_bmap); map->agg_id_tbl[agg_id] = idx; return idx; } static void bnxt_free_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx) { struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; __clear_bit(idx, map->agg_idx_bmap); } static u16 bnxt_lookup_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id) { struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map; return map->agg_id_tbl[agg_id]; } static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, struct rx_tpa_start_cmp *tpa_start, struct rx_tpa_start_cmp_ext *tpa_start1) { struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; struct bnxt_tpa_info *tpa_info; u16 cons, prod, agg_id; struct rx_bd *prod_bd; dma_addr_t mapping; if (bp->flags & BNXT_FLAG_CHIP_P5) { agg_id = TPA_START_AGG_ID_P5(tpa_start); agg_id = bnxt_alloc_agg_idx(rxr, agg_id); } else { agg_id = TPA_START_AGG_ID(tpa_start); } cons = tpa_start->rx_tpa_start_cmp_opaque; prod = rxr->rx_prod; cons_rx_buf = &rxr->rx_buf_ring[cons]; prod_rx_buf = &rxr->rx_buf_ring[prod]; tpa_info = &rxr->rx_tpa[agg_id]; if (unlikely(cons != rxr->rx_next_cons || TPA_START_ERROR(tpa_start))) { netdev_warn(bp->dev, "TPA cons %x, expected cons %x, error code %x\n", cons, rxr->rx_next_cons, TPA_START_ERROR_CODE(tpa_start1)); bnxt_sched_reset(bp, rxr); return; } /* Store cfa_code in tpa_info to use in tpa_end * completion processing. */ tpa_info->cfa_code = TPA_START_CFA_CODE(tpa_start1); prod_rx_buf->data = tpa_info->data; prod_rx_buf->data_ptr = tpa_info->data_ptr; mapping = tpa_info->mapping; prod_rx_buf->mapping = mapping; prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; prod_bd->rx_bd_haddr = cpu_to_le64(mapping); tpa_info->data = cons_rx_buf->data; tpa_info->data_ptr = cons_rx_buf->data_ptr; cons_rx_buf->data = NULL; tpa_info->mapping = cons_rx_buf->mapping; tpa_info->len = le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >> RX_TPA_START_CMP_LEN_SHIFT; if (likely(TPA_START_HASH_VALID(tpa_start))) { u32 hash_type = TPA_START_HASH_TYPE(tpa_start); tpa_info->hash_type = PKT_HASH_TYPE_L4; tpa_info->gso_type = SKB_GSO_TCPV4; /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */ if (hash_type == 3 || TPA_START_IS_IPV6(tpa_start1)) tpa_info->gso_type = SKB_GSO_TCPV6; tpa_info->rss_hash = le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash); } else { tpa_info->hash_type = PKT_HASH_TYPE_NONE; tpa_info->gso_type = 0; netif_warn(bp, rx_err, bp->dev, "TPA packet without valid hash\n"); } tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2); tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata); tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info); tpa_info->agg_count = 0; rxr->rx_prod = NEXT_RX(prod); cons = NEXT_RX(cons); rxr->rx_next_cons = NEXT_RX(cons); cons_rx_buf = &rxr->rx_buf_ring[cons]; bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data); rxr->rx_prod = NEXT_RX(rxr->rx_prod); cons_rx_buf->data = NULL; } static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 idx, u32 agg_bufs) { if (agg_bufs) bnxt_reuse_rx_agg_bufs(cpr, idx, 0, agg_bufs, true); } #ifdef CONFIG_INET static void bnxt_gro_tunnel(struct sk_buff *skb, __be16 ip_proto) { struct udphdr *uh = NULL; if (ip_proto == htons(ETH_P_IP)) { struct iphdr *iph = (struct iphdr *)skb->data; if (iph->protocol == IPPROTO_UDP) uh = (struct udphdr *)(iph + 1); } else { struct ipv6hdr *iph = (struct ipv6hdr *)skb->data; if (iph->nexthdr == IPPROTO_UDP) uh = (struct udphdr *)(iph + 1); } if (uh) { if (uh->check) skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL_CSUM; else skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL; } } #endif static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info, int payload_off, int tcp_ts, struct sk_buff *skb) { #ifdef CONFIG_INET struct tcphdr *th; int len, nw_off; u16 outer_ip_off, inner_ip_off, inner_mac_off; u32 hdr_info = tpa_info->hdr_info; bool loopback = false; inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info); inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info); outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info); /* If the packet is an internal loopback packet, the offsets will * have an extra 4 bytes. */ if (inner_mac_off == 4) { loopback = true; } else if (inner_mac_off > 4) { __be16 proto = *((__be16 *)(skb->data + inner_ip_off - ETH_HLEN - 2)); /* We only support inner iPv4/ipv6. If we don't see the * correct protocol ID, it must be a loopback packet where * the offsets are off by 4. */ if (proto != htons(ETH_P_IP) && proto != htons(ETH_P_IPV6)) loopback = true; } if (loopback) { /* internal loopback packet, subtract all offsets by 4 */ inner_ip_off -= 4; inner_mac_off -= 4; outer_ip_off -= 4; } nw_off = inner_ip_off - ETH_HLEN; skb_set_network_header(skb, nw_off); if (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) { struct ipv6hdr *iph = ipv6_hdr(skb); skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); len = skb->len - skb_transport_offset(skb); th = tcp_hdr(skb); th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); } else { struct iphdr *iph = ip_hdr(skb); skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); len = skb->len - skb_transport_offset(skb); th = tcp_hdr(skb); th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); } if (inner_mac_off) { /* tunnel */ __be16 proto = *((__be16 *)(skb->data + outer_ip_off - ETH_HLEN - 2)); bnxt_gro_tunnel(skb, proto); } #endif return skb; } static struct sk_buff *bnxt_gro_func_5750x(struct bnxt_tpa_info *tpa_info, int payload_off, int tcp_ts, struct sk_buff *skb) { #ifdef CONFIG_INET u16 outer_ip_off, inner_ip_off, inner_mac_off; u32 hdr_info = tpa_info->hdr_info; int iphdr_len, nw_off; inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info); inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info); outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info); nw_off = inner_ip_off - ETH_HLEN; skb_set_network_header(skb, nw_off); iphdr_len = (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) ? sizeof(struct ipv6hdr) : sizeof(struct iphdr); skb_set_transport_header(skb, nw_off + iphdr_len); if (inner_mac_off) { /* tunnel */ __be16 proto = *((__be16 *)(skb->data + outer_ip_off - ETH_HLEN - 2)); bnxt_gro_tunnel(skb, proto); } #endif return skb; } #define BNXT_IPV4_HDR_SIZE (sizeof(struct iphdr) + sizeof(struct tcphdr)) #define BNXT_IPV6_HDR_SIZE (sizeof(struct ipv6hdr) + sizeof(struct tcphdr)) static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info, int payload_off, int tcp_ts, struct sk_buff *skb) { #ifdef CONFIG_INET struct tcphdr *th; int len, nw_off, tcp_opt_len = 0; if (tcp_ts) tcp_opt_len = 12; if (tpa_info->gso_type == SKB_GSO_TCPV4) { struct iphdr *iph; nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len - ETH_HLEN; skb_set_network_header(skb, nw_off); iph = ip_hdr(skb); skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); len = skb->len - skb_transport_offset(skb); th = tcp_hdr(skb); th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); } else if (tpa_info->gso_type == SKB_GSO_TCPV6) { struct ipv6hdr *iph; nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len - ETH_HLEN; skb_set_network_header(skb, nw_off); iph = ipv6_hdr(skb); skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); len = skb->len - skb_transport_offset(skb); th = tcp_hdr(skb); th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); } else { dev_kfree_skb_any(skb); return NULL; } if (nw_off) /* tunnel */ bnxt_gro_tunnel(skb, skb->protocol); #endif return skb; } static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp, struct bnxt_tpa_info *tpa_info, struct rx_tpa_end_cmp *tpa_end, struct rx_tpa_end_cmp_ext *tpa_end1, struct sk_buff *skb) { #ifdef CONFIG_INET int payload_off; u16 segs; segs = TPA_END_TPA_SEGS(tpa_end); if (segs == 1) return skb; NAPI_GRO_CB(skb)->count = segs; skb_shinfo(skb)->gso_size = le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len); skb_shinfo(skb)->gso_type = tpa_info->gso_type; if (bp->flags & BNXT_FLAG_CHIP_P5) payload_off = TPA_END_PAYLOAD_OFF_P5(tpa_end1); else payload_off = TPA_END_PAYLOAD_OFF(tpa_end); skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb); if (likely(skb)) tcp_gro_complete(skb); #endif return skb; } /* Given the cfa_code of a received packet determine which * netdev (vf-rep or PF) the packet is destined to. */ static struct net_device *bnxt_get_pkt_dev(struct bnxt *bp, u16 cfa_code) { struct net_device *dev = bnxt_get_vf_rep(bp, cfa_code); /* if vf-rep dev is NULL, the must belongs to the PF */ return dev ? dev : bp->dev; } static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u32 *raw_cons, struct rx_tpa_end_cmp *tpa_end, struct rx_tpa_end_cmp_ext *tpa_end1, u8 *event) { struct bnxt_napi *bnapi = cpr->bnapi; struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; u8 *data_ptr, agg_bufs; unsigned int len; struct bnxt_tpa_info *tpa_info; dma_addr_t mapping; struct sk_buff *skb; u16 idx = 0, agg_id; void *data; bool gro; if (unlikely(bnapi->in_reset)) { int rc = bnxt_discard_rx(bp, cpr, raw_cons, tpa_end); if (rc < 0) return ERR_PTR(-EBUSY); return NULL; } if (bp->flags & BNXT_FLAG_CHIP_P5) { agg_id = TPA_END_AGG_ID_P5(tpa_end); agg_id = bnxt_lookup_agg_idx(rxr, agg_id); agg_bufs = TPA_END_AGG_BUFS_P5(tpa_end1); tpa_info = &rxr->rx_tpa[agg_id]; if (unlikely(agg_bufs != tpa_info->agg_count)) { netdev_warn(bp->dev, "TPA end agg_buf %d != expected agg_bufs %d\n", agg_bufs, tpa_info->agg_count); agg_bufs = tpa_info->agg_count; } tpa_info->agg_count = 0; *event |= BNXT_AGG_EVENT; bnxt_free_agg_idx(rxr, agg_id); idx = agg_id; gro = !!(bp->flags & BNXT_FLAG_GRO); } else { agg_id = TPA_END_AGG_ID(tpa_end); agg_bufs = TPA_END_AGG_BUFS(tpa_end); tpa_info = &rxr->rx_tpa[agg_id]; idx = RING_CMP(*raw_cons); if (agg_bufs) { if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons)) return ERR_PTR(-EBUSY); *event |= BNXT_AGG_EVENT; idx = NEXT_CMP(idx); } gro = !!TPA_END_GRO(tpa_end); } data = tpa_info->data; data_ptr = tpa_info->data_ptr; prefetch(data_ptr); len = tpa_info->len; mapping = tpa_info->mapping; if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) { bnxt_abort_tpa(cpr, idx, agg_bufs); if (agg_bufs > MAX_SKB_FRAGS) netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n", agg_bufs, (int)MAX_SKB_FRAGS); return NULL; } if (len <= bp->rx_copy_thresh) { skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping); if (!skb) { bnxt_abort_tpa(cpr, idx, agg_bufs); cpr->sw_stats.rx.rx_oom_discards += 1; return NULL; } } else { u8 *new_data; dma_addr_t new_mapping; new_data = __bnxt_alloc_rx_frag(bp, &new_mapping, GFP_ATOMIC); if (!new_data) { bnxt_abort_tpa(cpr, idx, agg_bufs); cpr->sw_stats.rx.rx_oom_discards += 1; return NULL; } tpa_info->data = new_data; tpa_info->data_ptr = new_data + bp->rx_offset; tpa_info->mapping = new_mapping; skb = build_skb(data, bp->rx_buf_size); dma_unmap_single_attrs(&bp->pdev->dev, mapping, bp->rx_buf_use_size, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); if (!skb) { skb_free_frag(data); bnxt_abort_tpa(cpr, idx, agg_bufs); cpr->sw_stats.rx.rx_oom_discards += 1; return NULL; } skb_reserve(skb, bp->rx_offset); skb_put(skb, len); } if (agg_bufs) { skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, idx, agg_bufs, true); if (!skb) { /* Page reuse already handled by bnxt_rx_pages(). */ cpr->sw_stats.rx.rx_oom_discards += 1; return NULL; } } skb->protocol = eth_type_trans(skb, bnxt_get_pkt_dev(bp, tpa_info->cfa_code)); if (tpa_info->hash_type != PKT_HASH_TYPE_NONE) skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type); if ((tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) && (skb->dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)) { __be16 vlan_proto = htons(tpa_info->metadata >> RX_CMP_FLAGS2_METADATA_TPID_SFT); u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_TCI_MASK; if (eth_type_vlan(vlan_proto)) { __vlan_hwaccel_put_tag(skb, vlan_proto, vtag); } else { dev_kfree_skb(skb); return NULL; } } skb_checksum_none_assert(skb); if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) { skb->ip_summed = CHECKSUM_UNNECESSARY; skb->csum_level = (tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3; } if (gro) skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb); return skb; } static void bnxt_tpa_agg(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, struct rx_agg_cmp *rx_agg) { u16 agg_id = TPA_AGG_AGG_ID(rx_agg); struct bnxt_tpa_info *tpa_info; agg_id = bnxt_lookup_agg_idx(rxr, agg_id); tpa_info = &rxr->rx_tpa[agg_id]; BUG_ON(tpa_info->agg_count >= MAX_SKB_FRAGS); tpa_info->agg_arr[tpa_info->agg_count++] = *rx_agg; } static void bnxt_deliver_skb(struct bnxt *bp, struct bnxt_napi *bnapi, struct sk_buff *skb) { if (skb->dev != bp->dev) { /* this packet belongs to a vf-rep */ bnxt_vf_rep_rx(bp, skb); return; } skb_record_rx_queue(skb, bnapi->index); napi_gro_receive(&bnapi->napi, skb); } /* returns the following: * 1 - 1 packet successfully received * 0 - successful TPA_START, packet not completed yet * -EBUSY - completion ring does not have all the agg buffers yet * -ENOMEM - packet aborted due to out of memory * -EIO - packet aborted due to hw error indicated in BD */ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u32 *raw_cons, u8 *event) { struct bnxt_napi *bnapi = cpr->bnapi; struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; struct net_device *dev = bp->dev; struct rx_cmp *rxcmp; struct rx_cmp_ext *rxcmp1; u32 tmp_raw_cons = *raw_cons; u16 cfa_code, cons, prod, cp_cons = RING_CMP(tmp_raw_cons); struct bnxt_sw_rx_bd *rx_buf; unsigned int len; u8 *data_ptr, agg_bufs, cmp_type; bool xdp_active = false; dma_addr_t dma_addr; struct sk_buff *skb; struct xdp_buff xdp; u32 flags, misc; void *data; int rc = 0; rxcmp = (struct rx_cmp *) &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; cmp_type = RX_CMP_TYPE(rxcmp); if (cmp_type == CMP_TYPE_RX_TPA_AGG_CMP) { bnxt_tpa_agg(bp, rxr, (struct rx_agg_cmp *)rxcmp); goto next_rx_no_prod_no_len; } tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons); cp_cons = RING_CMP(tmp_raw_cons); rxcmp1 = (struct rx_cmp_ext *) &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) return -EBUSY; /* The valid test of the entry must be done first before * reading any further. */ dma_rmb(); prod = rxr->rx_prod; if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) { bnxt_tpa_start(bp, rxr, (struct rx_tpa_start_cmp *)rxcmp, (struct rx_tpa_start_cmp_ext *)rxcmp1); *event |= BNXT_RX_EVENT; goto next_rx_no_prod_no_len; } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { skb = bnxt_tpa_end(bp, cpr, &tmp_raw_cons, (struct rx_tpa_end_cmp *)rxcmp, (struct rx_tpa_end_cmp_ext *)rxcmp1, event); if (IS_ERR(skb)) return -EBUSY; rc = -ENOMEM; if (likely(skb)) { bnxt_deliver_skb(bp, bnapi, skb); rc = 1; } *event |= BNXT_RX_EVENT; goto next_rx_no_prod_no_len; } cons = rxcmp->rx_cmp_opaque; if (unlikely(cons != rxr->rx_next_cons)) { int rc1 = bnxt_discard_rx(bp, cpr, &tmp_raw_cons, rxcmp); /* 0xffff is forced error, don't print it */ if (rxr->rx_next_cons != 0xffff) netdev_warn(bp->dev, "RX cons %x != expected cons %x\n", cons, rxr->rx_next_cons); bnxt_sched_reset(bp, rxr); if (rc1) return rc1; goto next_rx_no_prod_no_len; } rx_buf = &rxr->rx_buf_ring[cons]; data = rx_buf->data; data_ptr = rx_buf->data_ptr; prefetch(data_ptr); misc = le32_to_cpu(rxcmp->rx_cmp_misc_v1); agg_bufs = (misc & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT; if (agg_bufs) { if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) return -EBUSY; cp_cons = NEXT_CMP(cp_cons); *event |= BNXT_AGG_EVENT; } *event |= BNXT_RX_EVENT; rx_buf->data = NULL; if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) { u32 rx_err = le32_to_cpu(rxcmp1->rx_cmp_cfa_code_errors_v2); bnxt_reuse_rx_data(rxr, cons, data); if (agg_bufs) bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, agg_bufs, false); rc = -EIO; if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) { bnapi->cp_ring.sw_stats.rx.rx_buf_errors++; if (!(bp->flags & BNXT_FLAG_CHIP_P5) && !(bp->fw_cap & BNXT_FW_CAP_RING_MONITOR)) { netdev_warn_once(bp->dev, "RX buffer error %x\n", rx_err); bnxt_sched_reset(bp, rxr); } } goto next_rx_no_len; } flags = le32_to_cpu(rxcmp->rx_cmp_len_flags_type); len = flags >> RX_CMP_LEN_SHIFT; dma_addr = rx_buf->mapping; if (bnxt_xdp_attached(bp, rxr)) { bnxt_xdp_buff_init(bp, rxr, cons, data_ptr, len, &xdp); if (agg_bufs) { u32 frag_len = bnxt_rx_agg_pages_xdp(bp, cpr, &xdp, cp_cons, agg_bufs, false); if (!frag_len) { cpr->sw_stats.rx.rx_oom_discards += 1; rc = -ENOMEM; goto next_rx; } } xdp_active = true; } if (xdp_active) { if (bnxt_rx_xdp(bp, rxr, cons, xdp, data, &data_ptr, &len, event)) { rc = 1; goto next_rx; } } if (len <= bp->rx_copy_thresh) { skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr); bnxt_reuse_rx_data(rxr, cons, data); if (!skb) { if (agg_bufs) { if (!xdp_active) bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, agg_bufs, false); else bnxt_xdp_buff_frags_free(rxr, &xdp); } cpr->sw_stats.rx.rx_oom_discards += 1; rc = -ENOMEM; goto next_rx; } } else { u32 payload; if (rx_buf->data_ptr == data_ptr) payload = misc & RX_CMP_PAYLOAD_OFFSET; else payload = 0; skb = bp->rx_skb_func(bp, rxr, cons, data, data_ptr, dma_addr, payload | len); if (!skb) { cpr->sw_stats.rx.rx_oom_discards += 1; rc = -ENOMEM; goto next_rx; } } if (agg_bufs) { if (!xdp_active) { skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, cp_cons, agg_bufs, false); if (!skb) { cpr->sw_stats.rx.rx_oom_discards += 1; rc = -ENOMEM; goto next_rx; } } else { skb = bnxt_xdp_build_skb(bp, skb, agg_bufs, rxr->page_pool, &xdp, rxcmp1); if (!skb) { /* we should be able to free the old skb here */ bnxt_xdp_buff_frags_free(rxr, &xdp); cpr->sw_stats.rx.rx_oom_discards += 1; rc = -ENOMEM; goto next_rx; } } } if (RX_CMP_HASH_VALID(rxcmp)) { u32 hash_type = RX_CMP_HASH_TYPE(rxcmp); enum pkt_hash_types type = PKT_HASH_TYPE_L4; /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */ if (hash_type != 1 && hash_type != 3) type = PKT_HASH_TYPE_L3; skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type); } cfa_code = RX_CMP_CFA_CODE(rxcmp1); skb->protocol = eth_type_trans(skb, bnxt_get_pkt_dev(bp, cfa_code)); if ((rxcmp1->rx_cmp_flags2 & cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) && (skb->dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)) { u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data); u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_TCI_MASK; __be16 vlan_proto = htons(meta_data >> RX_CMP_FLAGS2_METADATA_TPID_SFT); if (eth_type_vlan(vlan_proto)) { __vlan_hwaccel_put_tag(skb, vlan_proto, vtag); } else { dev_kfree_skb(skb); goto next_rx; } } skb_checksum_none_assert(skb); if (RX_CMP_L4_CS_OK(rxcmp1)) { if (dev->features & NETIF_F_RXCSUM) { skb->ip_summed = CHECKSUM_UNNECESSARY; skb->csum_level = RX_CMP_ENCAP(rxcmp1); } } else { if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) { if (dev->features & NETIF_F_RXCSUM) bnapi->cp_ring.sw_stats.rx.rx_l4_csum_errors++; } } if (unlikely((flags & RX_CMP_FLAGS_ITYPES_MASK) == RX_CMP_FLAGS_ITYPE_PTP_W_TS) || bp->ptp_all_rx_tstamp) { if (bp->flags & BNXT_FLAG_CHIP_P5) { u32 cmpl_ts = le32_to_cpu(rxcmp1->rx_cmp_timestamp); u64 ns, ts; if (!bnxt_get_rx_ts_p5(bp, &ts, cmpl_ts)) { struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; spin_lock_bh(&ptp->ptp_lock); ns = timecounter_cyc2time(&ptp->tc, ts); spin_unlock_bh(&ptp->ptp_lock); memset(skb_hwtstamps(skb), 0, sizeof(*skb_hwtstamps(skb))); skb_hwtstamps(skb)->hwtstamp = ns_to_ktime(ns); } } } bnxt_deliver_skb(bp, bnapi, skb); rc = 1; next_rx: cpr->rx_packets += 1; cpr->rx_bytes += len; next_rx_no_len: rxr->rx_prod = NEXT_RX(prod); rxr->rx_next_cons = NEXT_RX(cons); next_rx_no_prod_no_len: *raw_cons = tmp_raw_cons; return rc; } /* In netpoll mode, if we are using a combined completion ring, we need to * discard the rx packets and recycle the buffers. */ static int bnxt_force_rx_discard(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u32 *raw_cons, u8 *event) { u32 tmp_raw_cons = *raw_cons; struct rx_cmp_ext *rxcmp1; struct rx_cmp *rxcmp; u16 cp_cons; u8 cmp_type; int rc; cp_cons = RING_CMP(tmp_raw_cons); rxcmp = (struct rx_cmp *) &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons); cp_cons = RING_CMP(tmp_raw_cons); rxcmp1 = (struct rx_cmp_ext *) &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) return -EBUSY; /* The valid test of the entry must be done first before * reading any further. */ dma_rmb(); cmp_type = RX_CMP_TYPE(rxcmp); if (cmp_type == CMP_TYPE_RX_L2_CMP) { rxcmp1->rx_cmp_cfa_code_errors_v2 |= cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR); } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { struct rx_tpa_end_cmp_ext *tpa_end1; tpa_end1 = (struct rx_tpa_end_cmp_ext *)rxcmp1; tpa_end1->rx_tpa_end_cmp_errors_v2 |= cpu_to_le32(RX_TPA_END_CMP_ERRORS); } rc = bnxt_rx_pkt(bp, cpr, raw_cons, event); if (rc && rc != -EBUSY) cpr->sw_stats.rx.rx_netpoll_discards += 1; return rc; } u32 bnxt_fw_health_readl(struct bnxt *bp, int reg_idx) { struct bnxt_fw_health *fw_health = bp->fw_health; u32 reg = fw_health->regs[reg_idx]; u32 reg_type, reg_off, val = 0; reg_type = BNXT_FW_HEALTH_REG_TYPE(reg); reg_off = BNXT_FW_HEALTH_REG_OFF(reg); switch (reg_type) { case BNXT_FW_HEALTH_REG_TYPE_CFG: pci_read_config_dword(bp->pdev, reg_off, &val); break; case BNXT_FW_HEALTH_REG_TYPE_GRC: reg_off = fw_health->mapped_regs[reg_idx]; fallthrough; case BNXT_FW_HEALTH_REG_TYPE_BAR0: val = readl(bp->bar0 + reg_off); break; case BNXT_FW_HEALTH_REG_TYPE_BAR1: val = readl(bp->bar1 + reg_off); break; } if (reg_idx == BNXT_FW_RESET_INPROG_REG) val &= fw_health->fw_reset_inprog_reg_mask; return val; } static u16 bnxt_agg_ring_id_to_grp_idx(struct bnxt *bp, u16 ring_id) { int i; for (i = 0; i < bp->rx_nr_rings; i++) { u16 grp_idx = bp->rx_ring[i].bnapi->index; struct bnxt_ring_grp_info *grp_info; grp_info = &bp->grp_info[grp_idx]; if (grp_info->agg_fw_ring_id == ring_id) return grp_idx; } return INVALID_HW_RING_ID; } static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2) { u32 err_type = BNXT_EVENT_ERROR_REPORT_TYPE(data1); switch (err_type) { case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_INVALID_SIGNAL: netdev_err(bp->dev, "1PPS: Received invalid signal on pin%lu from the external source. Please fix the signal and reconfigure the pin\n", BNXT_EVENT_INVALID_SIGNAL_DATA(data2)); break; case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_PAUSE_STORM: netdev_warn(bp->dev, "Pause Storm detected!\n"); break; case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_DOORBELL_DROP_THRESHOLD: netdev_warn(bp->dev, "One or more MMIO doorbells dropped by the device!\n"); break; default: netdev_err(bp->dev, "FW reported unknown error type %u\n", err_type); break; } } #define BNXT_GET_EVENT_PORT(data) \ ((data) & \ ASYNC_EVENT_CMPL_PORT_CONN_NOT_ALLOWED_EVENT_DATA1_PORT_ID_MASK) #define BNXT_EVENT_RING_TYPE(data2) \ ((data2) & \ ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_MASK) #define BNXT_EVENT_RING_TYPE_RX(data2) \ (BNXT_EVENT_RING_TYPE(data2) == \ ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_RX) #define BNXT_EVENT_PHC_EVENT_TYPE(data1) \ (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_MASK) >>\ ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_SFT) #define BNXT_EVENT_PHC_RTC_UPDATE(data1) \ (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_MASK) >>\ ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_SFT) #define BNXT_PHC_BITS 48 static int bnxt_async_event_process(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) { u16 event_id = le16_to_cpu(cmpl->event_id); u32 data1 = le32_to_cpu(cmpl->event_data1); u32 data2 = le32_to_cpu(cmpl->event_data2); netdev_dbg(bp->dev, "hwrm event 0x%x {0x%x, 0x%x}\n", event_id, data1, data2); /* TODO CHIMP_FW: Define event id's for link change, error etc */ switch (event_id) { case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: { struct bnxt_link_info *link_info = &bp->link_info; if (BNXT_VF(bp)) goto async_event_process_exit; /* print unsupported speed warning in forced speed mode only */ if (!(link_info->autoneg & BNXT_AUTONEG_SPEED) && (data1 & 0x20000)) { u16 fw_speed = link_info->force_link_speed; u32 speed = bnxt_fw_to_ethtool_speed(fw_speed); if (speed != SPEED_UNKNOWN) netdev_warn(bp->dev, "Link speed %d no longer supported\n", speed); } set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event); } fallthrough; case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE: case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE: set_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, &bp->sp_event); fallthrough; case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE: set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event); break; case ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD: set_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event); break; case ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED: { u16 port_id = BNXT_GET_EVENT_PORT(data1); if (BNXT_VF(bp)) break; if (bp->pf.port_id != port_id) break; set_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event); break; } case ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE: if (BNXT_PF(bp)) goto async_event_process_exit; set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event); break; case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY: { char *type_str = "Solicited"; if (!bp->fw_health) goto async_event_process_exit; bp->fw_reset_timestamp = jiffies; bp->fw_reset_min_dsecs = cmpl->timestamp_lo; if (!bp->fw_reset_min_dsecs) bp->fw_reset_min_dsecs = BNXT_DFLT_FW_RST_MIN_DSECS; bp->fw_reset_max_dsecs = le16_to_cpu(cmpl->timestamp_hi); if (!bp->fw_reset_max_dsecs) bp->fw_reset_max_dsecs = BNXT_DFLT_FW_RST_MAX_DSECS; if (EVENT_DATA1_RESET_NOTIFY_FW_ACTIVATION(data1)) { set_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state); } else if (EVENT_DATA1_RESET_NOTIFY_FATAL(data1)) { type_str = "Fatal"; bp->fw_health->fatalities++; set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); } else if (data2 && BNXT_FW_STATUS_HEALTHY != EVENT_DATA2_RESET_NOTIFY_FW_STATUS_CODE(data2)) { type_str = "Non-fatal"; bp->fw_health->survivals++; set_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state); } netif_warn(bp, hw, bp->dev, "%s firmware reset event, data1: 0x%x, data2: 0x%x, min wait %u ms, max wait %u ms\n", type_str, data1, data2, bp->fw_reset_min_dsecs * 100, bp->fw_reset_max_dsecs * 100); set_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event); break; } case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY: { struct bnxt_fw_health *fw_health = bp->fw_health; char *status_desc = "healthy"; u32 status; if (!fw_health) goto async_event_process_exit; if (!EVENT_DATA1_RECOVERY_ENABLED(data1)) { fw_health->enabled = false; netif_info(bp, drv, bp->dev, "Driver recovery watchdog is disabled\n"); break; } fw_health->primary = EVENT_DATA1_RECOVERY_MASTER_FUNC(data1); fw_health->tmr_multiplier = DIV_ROUND_UP(fw_health->polling_dsecs * HZ, bp->current_interval * 10); fw_health->tmr_counter = fw_health->tmr_multiplier; if (!fw_health->enabled) fw_health->last_fw_heartbeat = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); fw_health->last_fw_reset_cnt = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); if (status != BNXT_FW_STATUS_HEALTHY) status_desc = "unhealthy"; netif_info(bp, drv, bp->dev, "Driver recovery watchdog, role: %s, firmware status: 0x%x (%s), resets: %u\n", fw_health->primary ? "primary" : "backup", status, status_desc, fw_health->last_fw_reset_cnt); if (!fw_health->enabled) { /* Make sure tmr_counter is set and visible to * bnxt_health_check() before setting enabled to true. */ smp_wmb(); fw_health->enabled = true; } goto async_event_process_exit; } case ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION: netif_notice(bp, hw, bp->dev, "Received firmware debug notification, data1: 0x%x, data2: 0x%x\n", data1, data2); goto async_event_process_exit; case ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG: { struct bnxt_rx_ring_info *rxr; u16 grp_idx; if (bp->flags & BNXT_FLAG_CHIP_P5) goto async_event_process_exit; netdev_warn(bp->dev, "Ring monitor event, ring type %lu id 0x%x\n", BNXT_EVENT_RING_TYPE(data2), data1); if (!BNXT_EVENT_RING_TYPE_RX(data2)) goto async_event_process_exit; grp_idx = bnxt_agg_ring_id_to_grp_idx(bp, data1); if (grp_idx == INVALID_HW_RING_ID) { netdev_warn(bp->dev, "Unknown RX agg ring id 0x%x\n", data1); goto async_event_process_exit; } rxr = bp->bnapi[grp_idx]->rx_ring; bnxt_sched_reset(bp, rxr); goto async_event_process_exit; } case ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST: { struct bnxt_fw_health *fw_health = bp->fw_health; netif_notice(bp, hw, bp->dev, "Received firmware echo request, data1: 0x%x, data2: 0x%x\n", data1, data2); if (fw_health) { fw_health->echo_req_data1 = data1; fw_health->echo_req_data2 = data2; set_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event); break; } goto async_event_process_exit; } case ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP: { bnxt_ptp_pps_event(bp, data1, data2); goto async_event_process_exit; } case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT: { bnxt_event_error_report(bp, data1, data2); goto async_event_process_exit; } case ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE: { switch (BNXT_EVENT_PHC_EVENT_TYPE(data1)) { case ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_PHC_RTC_UPDATE: if (bp->fw_cap & BNXT_FW_CAP_PTP_RTC) { struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; u64 ns; spin_lock_bh(&ptp->ptp_lock); bnxt_ptp_update_current_time(bp); ns = (((u64)BNXT_EVENT_PHC_RTC_UPDATE(data1) << BNXT_PHC_BITS) | ptp->current_time); bnxt_ptp_rtc_timecounter_init(ptp, ns); spin_unlock_bh(&ptp->ptp_lock); } break; } goto async_event_process_exit; } case ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE: { u16 seq_id = le32_to_cpu(cmpl->event_data2) & 0xffff; hwrm_update_token(bp, seq_id, BNXT_HWRM_DEFERRED); goto async_event_process_exit; } default: goto async_event_process_exit; } bnxt_queue_sp_work(bp); async_event_process_exit: bnxt_ulp_async_events(bp, cmpl); return 0; } static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp) { u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id; struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp; struct hwrm_fwd_req_cmpl *fwd_req_cmpl = (struct hwrm_fwd_req_cmpl *)txcmp; switch (cmpl_type) { case CMPL_BASE_TYPE_HWRM_DONE: seq_id = le16_to_cpu(h_cmpl->sequence_id); hwrm_update_token(bp, seq_id, BNXT_HWRM_COMPLETE); break; case CMPL_BASE_TYPE_HWRM_FWD_REQ: vf_id = le16_to_cpu(fwd_req_cmpl->source_id); if ((vf_id < bp->pf.first_vf_id) || (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) { netdev_err(bp->dev, "Msg contains invalid VF id %x\n", vf_id); return -EINVAL; } set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap); set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); break; case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT: bnxt_async_event_process(bp, (struct hwrm_async_event_cmpl *)txcmp); break; default: break; } return 0; } static irqreturn_t bnxt_msix(int irq, void *dev_instance) { struct bnxt_napi *bnapi = dev_instance; struct bnxt *bp = bnapi->bp; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; u32 cons = RING_CMP(cpr->cp_raw_cons); cpr->event_ctr++; prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]); napi_schedule(&bnapi->napi); return IRQ_HANDLED; } static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr) { u32 raw_cons = cpr->cp_raw_cons; u16 cons = RING_CMP(raw_cons); struct tx_cmp *txcmp; txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; return TX_CMP_VALID(txcmp, raw_cons); } static irqreturn_t bnxt_inta(int irq, void *dev_instance) { struct bnxt_napi *bnapi = dev_instance; struct bnxt *bp = bnapi->bp; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; u32 cons = RING_CMP(cpr->cp_raw_cons); u32 int_status; prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]); if (!bnxt_has_work(bp, cpr)) { int_status = readl(bp->bar0 + BNXT_CAG_REG_LEGACY_INT_STATUS); /* return if erroneous interrupt */ if (!(int_status & (0x10000 << cpr->cp_ring_struct.fw_ring_id))) return IRQ_NONE; } /* disable ring IRQ */ BNXT_CP_DB_IRQ_DIS(cpr->cp_db.doorbell); /* Return here if interrupt is shared and is disabled. */ if (unlikely(atomic_read(&bp->intr_sem) != 0)) return IRQ_HANDLED; napi_schedule(&bnapi->napi); return IRQ_HANDLED; } static int __bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, int budget) { struct bnxt_napi *bnapi = cpr->bnapi; u32 raw_cons = cpr->cp_raw_cons; u32 cons; int tx_pkts = 0; int rx_pkts = 0; u8 event = 0; struct tx_cmp *txcmp; cpr->has_more_work = 0; cpr->had_work_done = 1; while (1) { int rc; cons = RING_CMP(raw_cons); txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; if (!TX_CMP_VALID(txcmp, raw_cons)) break; /* The valid test of the entry must be done first before * reading any further. */ dma_rmb(); if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) { tx_pkts++; /* return full budget so NAPI will complete. */ if (unlikely(tx_pkts >= bp->tx_wake_thresh)) { rx_pkts = budget; raw_cons = NEXT_RAW_CMP(raw_cons); if (budget) cpr->has_more_work = 1; break; } } else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { if (likely(budget)) rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event); else rc = bnxt_force_rx_discard(bp, cpr, &raw_cons, &event); if (likely(rc >= 0)) rx_pkts += rc; /* Increment rx_pkts when rc is -ENOMEM to count towards * the NAPI budget. Otherwise, we may potentially loop * here forever if we consistently cannot allocate * buffers. */ else if (rc == -ENOMEM && budget) rx_pkts++; else if (rc == -EBUSY) /* partial completion */ break; } else if (unlikely((TX_CMP_TYPE(txcmp) == CMPL_BASE_TYPE_HWRM_DONE) || (TX_CMP_TYPE(txcmp) == CMPL_BASE_TYPE_HWRM_FWD_REQ) || (TX_CMP_TYPE(txcmp) == CMPL_BASE_TYPE_HWRM_ASYNC_EVENT))) { bnxt_hwrm_handler(bp, txcmp); } raw_cons = NEXT_RAW_CMP(raw_cons); if (rx_pkts && rx_pkts == budget) { cpr->has_more_work = 1; break; } } if (event & BNXT_REDIRECT_EVENT) xdp_do_flush(); if (event & BNXT_TX_EVENT) { struct bnxt_tx_ring_info *txr = bnapi->tx_ring; u16 prod = txr->tx_prod; /* Sync BD data before updating doorbell */ wmb(); bnxt_db_write_relaxed(bp, &txr->tx_db, prod); } cpr->cp_raw_cons = raw_cons; bnapi->tx_pkts += tx_pkts; bnapi->events |= event; return rx_pkts; } static void __bnxt_poll_work_done(struct bnxt *bp, struct bnxt_napi *bnapi) { if (bnapi->tx_pkts) { bnapi->tx_int(bp, bnapi, bnapi->tx_pkts); bnapi->tx_pkts = 0; } if ((bnapi->events & BNXT_RX_EVENT) && !(bnapi->in_reset)) { struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); } if (bnapi->events & BNXT_AGG_EVENT) { struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); } bnapi->events = 0; } static int bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, int budget) { struct bnxt_napi *bnapi = cpr->bnapi; int rx_pkts; rx_pkts = __bnxt_poll_work(bp, cpr, budget); /* ACK completion ring before freeing tx ring and producing new * buffers in rx/agg rings to prevent overflowing the completion * ring. */ bnxt_db_cq(bp, &cpr->cp_db, cpr->cp_raw_cons); __bnxt_poll_work_done(bp, bnapi); return rx_pkts; } static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget) { struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); struct bnxt *bp = bnapi->bp; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; struct tx_cmp *txcmp; struct rx_cmp_ext *rxcmp1; u32 cp_cons, tmp_raw_cons; u32 raw_cons = cpr->cp_raw_cons; u32 rx_pkts = 0; u8 event = 0; while (1) { int rc; cp_cons = RING_CMP(raw_cons); txcmp = &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; if (!TX_CMP_VALID(txcmp, raw_cons)) break; /* The valid test of the entry must be done first before * reading any further. */ dma_rmb(); if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { tmp_raw_cons = NEXT_RAW_CMP(raw_cons); cp_cons = RING_CMP(tmp_raw_cons); rxcmp1 = (struct rx_cmp_ext *) &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) break; /* force an error to recycle the buffer */ rxcmp1->rx_cmp_cfa_code_errors_v2 |= cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR); rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event); if (likely(rc == -EIO) && budget) rx_pkts++; else if (rc == -EBUSY) /* partial completion */ break; } else if (unlikely(TX_CMP_TYPE(txcmp) == CMPL_BASE_TYPE_HWRM_DONE)) { bnxt_hwrm_handler(bp, txcmp); } else { netdev_err(bp->dev, "Invalid completion received on special ring\n"); } raw_cons = NEXT_RAW_CMP(raw_cons); if (rx_pkts == budget) break; } cpr->cp_raw_cons = raw_cons; BNXT_DB_CQ(&cpr->cp_db, cpr->cp_raw_cons); bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); if (event & BNXT_AGG_EVENT) bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); if (!bnxt_has_work(bp, cpr) && rx_pkts < budget) { napi_complete_done(napi, rx_pkts); BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); } return rx_pkts; } static int bnxt_poll(struct napi_struct *napi, int budget) { struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); struct bnxt *bp = bnapi->bp; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; int work_done = 0; if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) { napi_complete(napi); return 0; } while (1) { work_done += bnxt_poll_work(bp, cpr, budget - work_done); if (work_done >= budget) { if (!budget) BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); break; } if (!bnxt_has_work(bp, cpr)) { if (napi_complete_done(napi, work_done)) BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons); break; } } if (bp->flags & BNXT_FLAG_DIM) { struct dim_sample dim_sample = {}; dim_update_sample(cpr->event_ctr, cpr->rx_packets, cpr->rx_bytes, &dim_sample); net_dim(&cpr->dim, dim_sample); } return work_done; } static int __bnxt_poll_cqs(struct bnxt *bp, struct bnxt_napi *bnapi, int budget) { struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; int i, work_done = 0; for (i = 0; i < 2; i++) { struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i]; if (cpr2) { work_done += __bnxt_poll_work(bp, cpr2, budget - work_done); cpr->has_more_work |= cpr2->has_more_work; } } return work_done; } static void __bnxt_poll_cqs_done(struct bnxt *bp, struct bnxt_napi *bnapi, u64 dbr_type) { struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; int i; for (i = 0; i < 2; i++) { struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i]; struct bnxt_db_info *db; if (cpr2 && cpr2->had_work_done) { db = &cpr2->cp_db; bnxt_writeq(bp, db->db_key64 | dbr_type | RING_CMP(cpr2->cp_raw_cons), db->doorbell); cpr2->had_work_done = 0; } } __bnxt_poll_work_done(bp, bnapi); } static int bnxt_poll_p5(struct napi_struct *napi, int budget) { struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; struct bnxt_cp_ring_info *cpr_rx; u32 raw_cons = cpr->cp_raw_cons; struct bnxt *bp = bnapi->bp; struct nqe_cn *nqcmp; int work_done = 0; u32 cons; if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) { napi_complete(napi); return 0; } if (cpr->has_more_work) { cpr->has_more_work = 0; work_done = __bnxt_poll_cqs(bp, bnapi, budget); } while (1) { cons = RING_CMP(raw_cons); nqcmp = &cpr->nq_desc_ring[CP_RING(cons)][CP_IDX(cons)]; if (!NQ_CMP_VALID(nqcmp, raw_cons)) { if (cpr->has_more_work) break; __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ_ARMALL); cpr->cp_raw_cons = raw_cons; if (napi_complete_done(napi, work_done)) BNXT_DB_NQ_ARM_P5(&cpr->cp_db, cpr->cp_raw_cons); goto poll_done; } /* The valid test of the entry must be done first before * reading any further. */ dma_rmb(); if (nqcmp->type == cpu_to_le16(NQ_CN_TYPE_CQ_NOTIFICATION)) { u32 idx = le32_to_cpu(nqcmp->cq_handle_low); struct bnxt_cp_ring_info *cpr2; /* No more budget for RX work */ if (budget && work_done >= budget && idx == BNXT_RX_HDL) break; cpr2 = cpr->cp_ring_arr[idx]; work_done += __bnxt_poll_work(bp, cpr2, budget - work_done); cpr->has_more_work |= cpr2->has_more_work; } else { bnxt_hwrm_handler(bp, (struct tx_cmp *)nqcmp); } raw_cons = NEXT_RAW_CMP(raw_cons); } __bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ); if (raw_cons != cpr->cp_raw_cons) { cpr->cp_raw_cons = raw_cons; BNXT_DB_NQ_P5(&cpr->cp_db, raw_cons); } poll_done: cpr_rx = cpr->cp_ring_arr[BNXT_RX_HDL]; if (cpr_rx && (bp->flags & BNXT_FLAG_DIM)) { struct dim_sample dim_sample = {}; dim_update_sample(cpr->event_ctr, cpr_rx->rx_packets, cpr_rx->rx_bytes, &dim_sample); net_dim(&cpr->dim, dim_sample); } return work_done; } static void bnxt_free_tx_skbs(struct bnxt *bp) { int i, max_idx; struct pci_dev *pdev = bp->pdev; if (!bp->tx_ring) return; max_idx = bp->tx_nr_pages * TX_DESC_CNT; for (i = 0; i < bp->tx_nr_rings; i++) { struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; int j; if (!txr->tx_buf_ring) continue; for (j = 0; j < max_idx;) { struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j]; struct sk_buff *skb; int k, last; if (i < bp->tx_nr_rings_xdp && tx_buf->action == XDP_REDIRECT) { dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), dma_unmap_len(tx_buf, len), DMA_TO_DEVICE); xdp_return_frame(tx_buf->xdpf); tx_buf->action = 0; tx_buf->xdpf = NULL; j++; continue; } skb = tx_buf->skb; if (!skb) { j++; continue; } tx_buf->skb = NULL; if (tx_buf->is_push) { dev_kfree_skb(skb); j += 2; continue; } dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), skb_headlen(skb), DMA_TO_DEVICE); last = tx_buf->nr_frags; j += 2; for (k = 0; k < last; k++, j++) { int ring_idx = j & bp->tx_ring_mask; skb_frag_t *frag = &skb_shinfo(skb)->frags[k]; tx_buf = &txr->tx_buf_ring[ring_idx]; dma_unmap_page( &pdev->dev, dma_unmap_addr(tx_buf, mapping), skb_frag_size(frag), DMA_TO_DEVICE); } dev_kfree_skb(skb); } netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i)); } } static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp, int ring_nr) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; struct pci_dev *pdev = bp->pdev; struct bnxt_tpa_idx_map *map; int i, max_idx, max_agg_idx; max_idx = bp->rx_nr_pages * RX_DESC_CNT; max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT; if (!rxr->rx_tpa) goto skip_rx_tpa_free; for (i = 0; i < bp->max_tpa; i++) { struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[i]; u8 *data = tpa_info->data; if (!data) continue; dma_unmap_single_attrs(&pdev->dev, tpa_info->mapping, bp->rx_buf_use_size, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); tpa_info->data = NULL; skb_free_frag(data); } skip_rx_tpa_free: if (!rxr->rx_buf_ring) goto skip_rx_buf_free; for (i = 0; i < max_idx; i++) { struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[i]; dma_addr_t mapping = rx_buf->mapping; void *data = rx_buf->data; if (!data) continue; rx_buf->data = NULL; if (BNXT_RX_PAGE_MODE(bp)) { mapping -= bp->rx_dma_offset; dma_unmap_page_attrs(&pdev->dev, mapping, PAGE_SIZE, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); page_pool_recycle_direct(rxr->page_pool, data); } else { dma_unmap_single_attrs(&pdev->dev, mapping, bp->rx_buf_use_size, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); skb_free_frag(data); } } skip_rx_buf_free: if (!rxr->rx_agg_ring) goto skip_rx_agg_free; for (i = 0; i < max_agg_idx; i++) { struct bnxt_sw_rx_agg_bd *rx_agg_buf = &rxr->rx_agg_ring[i]; struct page *page = rx_agg_buf->page; if (!page) continue; if (BNXT_RX_PAGE_MODE(bp)) { dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping, BNXT_RX_PAGE_SIZE, bp->rx_dir, DMA_ATTR_WEAK_ORDERING); rx_agg_buf->page = NULL; __clear_bit(i, rxr->rx_agg_bmap); page_pool_recycle_direct(rxr->page_pool, page); } else { dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping, BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE, DMA_ATTR_WEAK_ORDERING); rx_agg_buf->page = NULL; __clear_bit(i, rxr->rx_agg_bmap); __free_page(page); } } skip_rx_agg_free: if (rxr->rx_page) { __free_page(rxr->rx_page); rxr->rx_page = NULL; } map = rxr->rx_tpa_idx_map; if (map) memset(map->agg_idx_bmap, 0, sizeof(map->agg_idx_bmap)); } static void bnxt_free_rx_skbs(struct bnxt *bp) { int i; if (!bp->rx_ring) return; for (i = 0; i < bp->rx_nr_rings; i++) bnxt_free_one_rx_ring_skbs(bp, i); } static void bnxt_free_skbs(struct bnxt *bp) { bnxt_free_tx_skbs(bp); bnxt_free_rx_skbs(bp); } static void bnxt_init_ctx_mem(struct bnxt_mem_init *mem_init, void *p, int len) { u8 init_val = mem_init->init_val; u16 offset = mem_init->offset; u8 *p2 = p; int i; if (!init_val) return; if (offset == BNXT_MEM_INVALID_OFFSET) { memset(p, init_val, len); return; } for (i = 0; i < len; i += mem_init->size) *(p2 + i + offset) = init_val; } static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem) { struct pci_dev *pdev = bp->pdev; int i; if (!rmem->pg_arr) goto skip_pages; for (i = 0; i < rmem->nr_pages; i++) { if (!rmem->pg_arr[i]) continue; dma_free_coherent(&pdev->dev, rmem->page_size, rmem->pg_arr[i], rmem->dma_arr[i]); rmem->pg_arr[i] = NULL; } skip_pages: if (rmem->pg_tbl) { size_t pg_tbl_size = rmem->nr_pages * 8; if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG) pg_tbl_size = rmem->page_size; dma_free_coherent(&pdev->dev, pg_tbl_size, rmem->pg_tbl, rmem->pg_tbl_map); rmem->pg_tbl = NULL; } if (rmem->vmem_size && *rmem->vmem) { vfree(*rmem->vmem); *rmem->vmem = NULL; } } static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem) { struct pci_dev *pdev = bp->pdev; u64 valid_bit = 0; int i; if (rmem->flags & (BNXT_RMEM_VALID_PTE_FLAG | BNXT_RMEM_RING_PTE_FLAG)) valid_bit = PTU_PTE_VALID; if ((rmem->nr_pages > 1 || rmem->depth > 0) && !rmem->pg_tbl) { size_t pg_tbl_size = rmem->nr_pages * 8; if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG) pg_tbl_size = rmem->page_size; rmem->pg_tbl = dma_alloc_coherent(&pdev->dev, pg_tbl_size, &rmem->pg_tbl_map, GFP_KERNEL); if (!rmem->pg_tbl) return -ENOMEM; } for (i = 0; i < rmem->nr_pages; i++) { u64 extra_bits = valid_bit; rmem->pg_arr[i] = dma_alloc_coherent(&pdev->dev, rmem->page_size, &rmem->dma_arr[i], GFP_KERNEL); if (!rmem->pg_arr[i]) return -ENOMEM; if (rmem->mem_init) bnxt_init_ctx_mem(rmem->mem_init, rmem->pg_arr[i], rmem->page_size); if (rmem->nr_pages > 1 || rmem->depth > 0) { if (i == rmem->nr_pages - 2 && (rmem->flags & BNXT_RMEM_RING_PTE_FLAG)) extra_bits |= PTU_PTE_NEXT_TO_LAST; else if (i == rmem->nr_pages - 1 && (rmem->flags & BNXT_RMEM_RING_PTE_FLAG)) extra_bits |= PTU_PTE_LAST; rmem->pg_tbl[i] = cpu_to_le64(rmem->dma_arr[i] | extra_bits); } } if (rmem->vmem_size) { *rmem->vmem = vzalloc(rmem->vmem_size); if (!(*rmem->vmem)) return -ENOMEM; } return 0; } static void bnxt_free_tpa_info(struct bnxt *bp) { int i; for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; kfree(rxr->rx_tpa_idx_map); rxr->rx_tpa_idx_map = NULL; if (rxr->rx_tpa) { kfree(rxr->rx_tpa[0].agg_arr); rxr->rx_tpa[0].agg_arr = NULL; } kfree(rxr->rx_tpa); rxr->rx_tpa = NULL; } } static int bnxt_alloc_tpa_info(struct bnxt *bp) { int i, j, total_aggs = 0; bp->max_tpa = MAX_TPA; if (bp->flags & BNXT_FLAG_CHIP_P5) { if (!bp->max_tpa_v2) return 0; bp->max_tpa = max_t(u16, bp->max_tpa_v2, MAX_TPA_P5); total_aggs = bp->max_tpa * MAX_SKB_FRAGS; } for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct rx_agg_cmp *agg; rxr->rx_tpa = kcalloc(bp->max_tpa, sizeof(struct bnxt_tpa_info), GFP_KERNEL); if (!rxr->rx_tpa) return -ENOMEM; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) continue; agg = kcalloc(total_aggs, sizeof(*agg), GFP_KERNEL); rxr->rx_tpa[0].agg_arr = agg; if (!agg) return -ENOMEM; for (j = 1; j < bp->max_tpa; j++) rxr->rx_tpa[j].agg_arr = agg + j * MAX_SKB_FRAGS; rxr->rx_tpa_idx_map = kzalloc(sizeof(*rxr->rx_tpa_idx_map), GFP_KERNEL); if (!rxr->rx_tpa_idx_map) return -ENOMEM; } return 0; } static void bnxt_free_rx_rings(struct bnxt *bp) { int i; if (!bp->rx_ring) return; bnxt_free_tpa_info(bp); for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct bnxt_ring_struct *ring; if (rxr->xdp_prog) bpf_prog_put(rxr->xdp_prog); if (xdp_rxq_info_is_reg(&rxr->xdp_rxq)) xdp_rxq_info_unreg(&rxr->xdp_rxq); page_pool_destroy(rxr->page_pool); rxr->page_pool = NULL; kfree(rxr->rx_agg_bmap); rxr->rx_agg_bmap = NULL; ring = &rxr->rx_ring_struct; bnxt_free_ring(bp, &ring->ring_mem); ring = &rxr->rx_agg_ring_struct; bnxt_free_ring(bp, &ring->ring_mem); } } static int bnxt_alloc_rx_page_pool(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) { struct page_pool_params pp = { 0 }; pp.pool_size = bp->rx_ring_size; pp.nid = dev_to_node(&bp->pdev->dev); pp.dev = &bp->pdev->dev; pp.dma_dir = DMA_BIDIRECTIONAL; rxr->page_pool = page_pool_create(&pp); if (IS_ERR(rxr->page_pool)) { int err = PTR_ERR(rxr->page_pool); rxr->page_pool = NULL; return err; } return 0; } static int bnxt_alloc_rx_rings(struct bnxt *bp) { int i, rc = 0, agg_rings = 0; if (!bp->rx_ring) return -ENOMEM; if (bp->flags & BNXT_FLAG_AGG_RINGS) agg_rings = 1; for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct bnxt_ring_struct *ring; ring = &rxr->rx_ring_struct; rc = bnxt_alloc_rx_page_pool(bp, rxr); if (rc) return rc; rc = xdp_rxq_info_reg(&rxr->xdp_rxq, bp->dev, i, 0); if (rc < 0) return rc; rc = xdp_rxq_info_reg_mem_model(&rxr->xdp_rxq, MEM_TYPE_PAGE_POOL, rxr->page_pool); if (rc) { xdp_rxq_info_unreg(&rxr->xdp_rxq); return rc; } rc = bnxt_alloc_ring(bp, &ring->ring_mem); if (rc) return rc; ring->grp_idx = i; if (agg_rings) { u16 mem_size; ring = &rxr->rx_agg_ring_struct; rc = bnxt_alloc_ring(bp, &ring->ring_mem); if (rc) return rc; ring->grp_idx = i; rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1; mem_size = rxr->rx_agg_bmap_size / 8; rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL); if (!rxr->rx_agg_bmap) return -ENOMEM; } } if (bp->flags & BNXT_FLAG_TPA) rc = bnxt_alloc_tpa_info(bp); return rc; } static void bnxt_free_tx_rings(struct bnxt *bp) { int i; struct pci_dev *pdev = bp->pdev; if (!bp->tx_ring) return; for (i = 0; i < bp->tx_nr_rings; i++) { struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; struct bnxt_ring_struct *ring; if (txr->tx_push) { dma_free_coherent(&pdev->dev, bp->tx_push_size, txr->tx_push, txr->tx_push_mapping); txr->tx_push = NULL; } ring = &txr->tx_ring_struct; bnxt_free_ring(bp, &ring->ring_mem); } } static int bnxt_alloc_tx_rings(struct bnxt *bp) { int i, j, rc; struct pci_dev *pdev = bp->pdev; bp->tx_push_size = 0; if (bp->tx_push_thresh) { int push_size; push_size = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) + bp->tx_push_thresh); if (push_size > 256) { push_size = 0; bp->tx_push_thresh = 0; } bp->tx_push_size = push_size; } for (i = 0, j = 0; i < bp->tx_nr_rings; i++) { struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; struct bnxt_ring_struct *ring; u8 qidx; ring = &txr->tx_ring_struct; rc = bnxt_alloc_ring(bp, &ring->ring_mem); if (rc) return rc; ring->grp_idx = txr->bnapi->index; if (bp->tx_push_size) { dma_addr_t mapping; /* One pre-allocated DMA buffer to backup * TX push operation */ txr->tx_push = dma_alloc_coherent(&pdev->dev, bp->tx_push_size, &txr->tx_push_mapping, GFP_KERNEL); if (!txr->tx_push) return -ENOMEM; mapping = txr->tx_push_mapping + sizeof(struct tx_push_bd); txr->data_mapping = cpu_to_le64(mapping); } qidx = bp->tc_to_qidx[j]; ring->queue_id = bp->q_info[qidx].queue_id; spin_lock_init(&txr->xdp_tx_lock); if (i < bp->tx_nr_rings_xdp) continue; if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1)) j++; } return 0; } static void bnxt_free_cp_arrays(struct bnxt_cp_ring_info *cpr) { struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; kfree(cpr->cp_desc_ring); cpr->cp_desc_ring = NULL; ring->ring_mem.pg_arr = NULL; kfree(cpr->cp_desc_mapping); cpr->cp_desc_mapping = NULL; ring->ring_mem.dma_arr = NULL; } static int bnxt_alloc_cp_arrays(struct bnxt_cp_ring_info *cpr, int n) { cpr->cp_desc_ring = kcalloc(n, sizeof(*cpr->cp_desc_ring), GFP_KERNEL); if (!cpr->cp_desc_ring) return -ENOMEM; cpr->cp_desc_mapping = kcalloc(n, sizeof(*cpr->cp_desc_mapping), GFP_KERNEL); if (!cpr->cp_desc_mapping) return -ENOMEM; return 0; } static void bnxt_free_all_cp_arrays(struct bnxt *bp) { int i; if (!bp->bnapi) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; if (!bnapi) continue; bnxt_free_cp_arrays(&bnapi->cp_ring); } } static int bnxt_alloc_all_cp_arrays(struct bnxt *bp) { int i, n = bp->cp_nr_pages; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; int rc; if (!bnapi) continue; rc = bnxt_alloc_cp_arrays(&bnapi->cp_ring, n); if (rc) return rc; } return 0; } static void bnxt_free_cp_rings(struct bnxt *bp) { int i; if (!bp->bnapi) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr; struct bnxt_ring_struct *ring; int j; if (!bnapi) continue; cpr = &bnapi->cp_ring; ring = &cpr->cp_ring_struct; bnxt_free_ring(bp, &ring->ring_mem); for (j = 0; j < 2; j++) { struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; if (cpr2) { ring = &cpr2->cp_ring_struct; bnxt_free_ring(bp, &ring->ring_mem); bnxt_free_cp_arrays(cpr2); kfree(cpr2); cpr->cp_ring_arr[j] = NULL; } } } } static struct bnxt_cp_ring_info *bnxt_alloc_cp_sub_ring(struct bnxt *bp) { struct bnxt_ring_mem_info *rmem; struct bnxt_ring_struct *ring; struct bnxt_cp_ring_info *cpr; int rc; cpr = kzalloc(sizeof(*cpr), GFP_KERNEL); if (!cpr) return NULL; rc = bnxt_alloc_cp_arrays(cpr, bp->cp_nr_pages); if (rc) { bnxt_free_cp_arrays(cpr); kfree(cpr); return NULL; } ring = &cpr->cp_ring_struct; rmem = &ring->ring_mem; rmem->nr_pages = bp->cp_nr_pages; rmem->page_size = HW_CMPD_RING_SIZE; rmem->pg_arr = (void **)cpr->cp_desc_ring; rmem->dma_arr = cpr->cp_desc_mapping; rmem->flags = BNXT_RMEM_RING_PTE_FLAG; rc = bnxt_alloc_ring(bp, rmem); if (rc) { bnxt_free_ring(bp, rmem); bnxt_free_cp_arrays(cpr); kfree(cpr); cpr = NULL; } return cpr; } static int bnxt_alloc_cp_rings(struct bnxt *bp) { bool sh = !!(bp->flags & BNXT_FLAG_SHARED_RINGS); int i, rc, ulp_base_vec, ulp_msix; ulp_msix = bnxt_get_ulp_msix_num(bp); ulp_base_vec = bnxt_get_ulp_msix_base(bp); for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr; struct bnxt_ring_struct *ring; if (!bnapi) continue; cpr = &bnapi->cp_ring; cpr->bnapi = bnapi; ring = &cpr->cp_ring_struct; rc = bnxt_alloc_ring(bp, &ring->ring_mem); if (rc) return rc; if (ulp_msix && i >= ulp_base_vec) ring->map_idx = i + ulp_msix; else ring->map_idx = i; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) continue; if (i < bp->rx_nr_rings) { struct bnxt_cp_ring_info *cpr2 = bnxt_alloc_cp_sub_ring(bp); cpr->cp_ring_arr[BNXT_RX_HDL] = cpr2; if (!cpr2) return -ENOMEM; cpr2->bnapi = bnapi; } if ((sh && i < bp->tx_nr_rings) || (!sh && i >= bp->rx_nr_rings)) { struct bnxt_cp_ring_info *cpr2 = bnxt_alloc_cp_sub_ring(bp); cpr->cp_ring_arr[BNXT_TX_HDL] = cpr2; if (!cpr2) return -ENOMEM; cpr2->bnapi = bnapi; } } return 0; } static void bnxt_init_ring_struct(struct bnxt *bp) { int i; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_ring_mem_info *rmem; struct bnxt_cp_ring_info *cpr; struct bnxt_rx_ring_info *rxr; struct bnxt_tx_ring_info *txr; struct bnxt_ring_struct *ring; if (!bnapi) continue; cpr = &bnapi->cp_ring; ring = &cpr->cp_ring_struct; rmem = &ring->ring_mem; rmem->nr_pages = bp->cp_nr_pages; rmem->page_size = HW_CMPD_RING_SIZE; rmem->pg_arr = (void **)cpr->cp_desc_ring; rmem->dma_arr = cpr->cp_desc_mapping; rmem->vmem_size = 0; rxr = bnapi->rx_ring; if (!rxr) goto skip_rx; ring = &rxr->rx_ring_struct; rmem = &ring->ring_mem; rmem->nr_pages = bp->rx_nr_pages; rmem->page_size = HW_RXBD_RING_SIZE; rmem->pg_arr = (void **)rxr->rx_desc_ring; rmem->dma_arr = rxr->rx_desc_mapping; rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages; rmem->vmem = (void **)&rxr->rx_buf_ring; ring = &rxr->rx_agg_ring_struct; rmem = &ring->ring_mem; rmem->nr_pages = bp->rx_agg_nr_pages; rmem->page_size = HW_RXBD_RING_SIZE; rmem->pg_arr = (void **)rxr->rx_agg_desc_ring; rmem->dma_arr = rxr->rx_agg_desc_mapping; rmem->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages; rmem->vmem = (void **)&rxr->rx_agg_ring; skip_rx: txr = bnapi->tx_ring; if (!txr) continue; ring = &txr->tx_ring_struct; rmem = &ring->ring_mem; rmem->nr_pages = bp->tx_nr_pages; rmem->page_size = HW_RXBD_RING_SIZE; rmem->pg_arr = (void **)txr->tx_desc_ring; rmem->dma_arr = txr->tx_desc_mapping; rmem->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages; rmem->vmem = (void **)&txr->tx_buf_ring; } } static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type) { int i; u32 prod; struct rx_bd **rx_buf_ring; rx_buf_ring = (struct rx_bd **)ring->ring_mem.pg_arr; for (i = 0, prod = 0; i < ring->ring_mem.nr_pages; i++) { int j; struct rx_bd *rxbd; rxbd = rx_buf_ring[i]; if (!rxbd) continue; for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) { rxbd->rx_bd_len_flags_type = cpu_to_le32(type); rxbd->rx_bd_opaque = prod; } } } static int bnxt_alloc_one_rx_ring(struct bnxt *bp, int ring_nr) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; struct net_device *dev = bp->dev; u32 prod; int i; prod = rxr->rx_prod; for (i = 0; i < bp->rx_ring_size; i++) { if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL)) { netdev_warn(dev, "init'ed rx ring %d with %d/%d skbs only\n", ring_nr, i, bp->rx_ring_size); break; } prod = NEXT_RX(prod); } rxr->rx_prod = prod; if (!(bp->flags & BNXT_FLAG_AGG_RINGS)) return 0; prod = rxr->rx_agg_prod; for (i = 0; i < bp->rx_agg_ring_size; i++) { if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_KERNEL)) { netdev_warn(dev, "init'ed rx ring %d with %d/%d pages only\n", ring_nr, i, bp->rx_ring_size); break; } prod = NEXT_RX_AGG(prod); } rxr->rx_agg_prod = prod; if (rxr->rx_tpa) { dma_addr_t mapping; u8 *data; for (i = 0; i < bp->max_tpa; i++) { data = __bnxt_alloc_rx_frag(bp, &mapping, GFP_KERNEL); if (!data) return -ENOMEM; rxr->rx_tpa[i].data = data; rxr->rx_tpa[i].data_ptr = data + bp->rx_offset; rxr->rx_tpa[i].mapping = mapping; } } return 0; } static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr) { struct bnxt_rx_ring_info *rxr; struct bnxt_ring_struct *ring; u32 type; type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) | RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP; if (NET_IP_ALIGN == 2) type |= RX_BD_FLAGS_SOP; rxr = &bp->rx_ring[ring_nr]; ring = &rxr->rx_ring_struct; bnxt_init_rxbd_pages(ring, type); if (BNXT_RX_PAGE_MODE(bp) && bp->xdp_prog) { bpf_prog_add(bp->xdp_prog, 1); rxr->xdp_prog = bp->xdp_prog; } ring->fw_ring_id = INVALID_HW_RING_ID; ring = &rxr->rx_agg_ring_struct; ring->fw_ring_id = INVALID_HW_RING_ID; if ((bp->flags & BNXT_FLAG_AGG_RINGS)) { type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) | RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP; bnxt_init_rxbd_pages(ring, type); } return bnxt_alloc_one_rx_ring(bp, ring_nr); } static void bnxt_init_cp_rings(struct bnxt *bp) { int i, j; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; ring->fw_ring_id = INVALID_HW_RING_ID; cpr->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks; cpr->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs; for (j = 0; j < 2; j++) { struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; if (!cpr2) continue; ring = &cpr2->cp_ring_struct; ring->fw_ring_id = INVALID_HW_RING_ID; cpr2->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks; cpr2->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs; } } } static int bnxt_init_rx_rings(struct bnxt *bp) { int i, rc = 0; if (BNXT_RX_PAGE_MODE(bp)) { bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM; bp->rx_dma_offset = XDP_PACKET_HEADROOM; } else { bp->rx_offset = BNXT_RX_OFFSET; bp->rx_dma_offset = BNXT_RX_DMA_OFFSET; } for (i = 0; i < bp->rx_nr_rings; i++) { rc = bnxt_init_one_rx_ring(bp, i); if (rc) break; } return rc; } static int bnxt_init_tx_rings(struct bnxt *bp) { u16 i; bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2, BNXT_MIN_TX_DESC_CNT); for (i = 0; i < bp->tx_nr_rings; i++) { struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; struct bnxt_ring_struct *ring = &txr->tx_ring_struct; ring->fw_ring_id = INVALID_HW_RING_ID; } return 0; } static void bnxt_free_ring_grps(struct bnxt *bp) { kfree(bp->grp_info); bp->grp_info = NULL; } static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init) { int i; if (irq_re_init) { bp->grp_info = kcalloc(bp->cp_nr_rings, sizeof(struct bnxt_ring_grp_info), GFP_KERNEL); if (!bp->grp_info) return -ENOMEM; } for (i = 0; i < bp->cp_nr_rings; i++) { if (irq_re_init) bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID; bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID; bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID; bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; } return 0; } static void bnxt_free_vnics(struct bnxt *bp) { kfree(bp->vnic_info); bp->vnic_info = NULL; bp->nr_vnics = 0; } static int bnxt_alloc_vnics(struct bnxt *bp) { int num_vnics = 1; #ifdef CONFIG_RFS_ACCEL if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS) num_vnics += bp->rx_nr_rings; #endif if (BNXT_CHIP_TYPE_NITRO_A0(bp)) num_vnics++; bp->vnic_info = kcalloc(num_vnics, sizeof(struct bnxt_vnic_info), GFP_KERNEL); if (!bp->vnic_info) return -ENOMEM; bp->nr_vnics = num_vnics; return 0; } static void bnxt_init_vnics(struct bnxt *bp) { int i; for (i = 0; i < bp->nr_vnics; i++) { struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; int j; vnic->fw_vnic_id = INVALID_HW_RING_ID; for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) vnic->fw_rss_cos_lb_ctx[j] = INVALID_HW_RING_ID; vnic->fw_l2_ctx_id = INVALID_HW_RING_ID; if (bp->vnic_info[i].rss_hash_key) { if (i == 0) get_random_bytes(vnic->rss_hash_key, HW_HASH_KEY_SIZE); else memcpy(vnic->rss_hash_key, bp->vnic_info[0].rss_hash_key, HW_HASH_KEY_SIZE); } } } static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg) { int pages; pages = ring_size / desc_per_pg; if (!pages) return 1; pages++; while (pages & (pages - 1)) pages++; return pages; } void bnxt_set_tpa_flags(struct bnxt *bp) { bp->flags &= ~BNXT_FLAG_TPA; if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) return; if (bp->dev->features & NETIF_F_LRO) bp->flags |= BNXT_FLAG_LRO; else if (bp->dev->features & NETIF_F_GRO_HW) bp->flags |= BNXT_FLAG_GRO; } /* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must * be set on entry. */ void bnxt_set_ring_params(struct bnxt *bp) { u32 ring_size, rx_size, rx_space, max_rx_cmpl; u32 agg_factor = 0, agg_ring_size = 0; /* 8 for CRC and VLAN */ rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8); rx_space = rx_size + ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); bp->rx_copy_thresh = BNXT_RX_COPY_THRESH; ring_size = bp->rx_ring_size; bp->rx_agg_ring_size = 0; bp->rx_agg_nr_pages = 0; if (bp->flags & BNXT_FLAG_TPA) agg_factor = min_t(u32, 4, 65536 / BNXT_RX_PAGE_SIZE); bp->flags &= ~BNXT_FLAG_JUMBO; if (rx_space > PAGE_SIZE && !(bp->flags & BNXT_FLAG_NO_AGG_RINGS)) { u32 jumbo_factor; bp->flags |= BNXT_FLAG_JUMBO; jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT; if (jumbo_factor > agg_factor) agg_factor = jumbo_factor; } if (agg_factor) { if (ring_size > BNXT_MAX_RX_DESC_CNT_JUM_ENA) { ring_size = BNXT_MAX_RX_DESC_CNT_JUM_ENA; netdev_warn(bp->dev, "RX ring size reduced from %d to %d because the jumbo ring is now enabled\n", bp->rx_ring_size, ring_size); bp->rx_ring_size = ring_size; } agg_ring_size = ring_size * agg_factor; bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size, RX_DESC_CNT); if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) { u32 tmp = agg_ring_size; bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES; agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1; netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n", tmp, agg_ring_size); } bp->rx_agg_ring_size = agg_ring_size; bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1; if (BNXT_RX_PAGE_MODE(bp)) { rx_space = PAGE_SIZE; rx_size = PAGE_SIZE - ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); } else { rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN); rx_space = rx_size + NET_SKB_PAD + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); } } bp->rx_buf_use_size = rx_size; bp->rx_buf_size = rx_space; bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT); bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1; ring_size = bp->tx_ring_size; bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT); bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1; max_rx_cmpl = bp->rx_ring_size; /* MAX TPA needs to be added because TPA_START completions are * immediately recycled, so the TPA completions are not bound by * the RX ring size. */ if (bp->flags & BNXT_FLAG_TPA) max_rx_cmpl += bp->max_tpa; /* RX and TPA completions are 32-byte, all others are 16-byte */ ring_size = max_rx_cmpl * 2 + agg_ring_size + bp->tx_ring_size; bp->cp_ring_size = ring_size; bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT); if (bp->cp_nr_pages > MAX_CP_PAGES) { bp->cp_nr_pages = MAX_CP_PAGES; bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1; netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n", ring_size, bp->cp_ring_size); } bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT; bp->cp_ring_mask = bp->cp_bit - 1; } /* Changing allocation mode of RX rings. * TODO: Update when extending xdp_rxq_info to support allocation modes. */ int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode) { if (page_mode) { bp->flags &= ~BNXT_FLAG_AGG_RINGS; bp->flags |= BNXT_FLAG_RX_PAGE_MODE; if (bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU) { bp->flags |= BNXT_FLAG_JUMBO; bp->rx_skb_func = bnxt_rx_multi_page_skb; bp->dev->max_mtu = min_t(u16, bp->max_mtu, BNXT_MAX_MTU); } else { bp->flags |= BNXT_FLAG_NO_AGG_RINGS; bp->rx_skb_func = bnxt_rx_page_skb; bp->dev->max_mtu = min_t(u16, bp->max_mtu, BNXT_MAX_PAGE_MODE_MTU); } bp->rx_dir = DMA_BIDIRECTIONAL; /* Disable LRO or GRO_HW */ netdev_update_features(bp->dev); } else { bp->dev->max_mtu = bp->max_mtu; bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE; bp->rx_dir = DMA_FROM_DEVICE; bp->rx_skb_func = bnxt_rx_skb; } return 0; } static void bnxt_free_vnic_attributes(struct bnxt *bp) { int i; struct bnxt_vnic_info *vnic; struct pci_dev *pdev = bp->pdev; if (!bp->vnic_info) return; for (i = 0; i < bp->nr_vnics; i++) { vnic = &bp->vnic_info[i]; kfree(vnic->fw_grp_ids); vnic->fw_grp_ids = NULL; kfree(vnic->uc_list); vnic->uc_list = NULL; if (vnic->mc_list) { dma_free_coherent(&pdev->dev, vnic->mc_list_size, vnic->mc_list, vnic->mc_list_mapping); vnic->mc_list = NULL; } if (vnic->rss_table) { dma_free_coherent(&pdev->dev, vnic->rss_table_size, vnic->rss_table, vnic->rss_table_dma_addr); vnic->rss_table = NULL; } vnic->rss_hash_key = NULL; vnic->flags = 0; } } static int bnxt_alloc_vnic_attributes(struct bnxt *bp) { int i, rc = 0, size; struct bnxt_vnic_info *vnic; struct pci_dev *pdev = bp->pdev; int max_rings; for (i = 0; i < bp->nr_vnics; i++) { vnic = &bp->vnic_info[i]; if (vnic->flags & BNXT_VNIC_UCAST_FLAG) { int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN; if (mem_size > 0) { vnic->uc_list = kmalloc(mem_size, GFP_KERNEL); if (!vnic->uc_list) { rc = -ENOMEM; goto out; } } } if (vnic->flags & BNXT_VNIC_MCAST_FLAG) { vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN; vnic->mc_list = dma_alloc_coherent(&pdev->dev, vnic->mc_list_size, &vnic->mc_list_mapping, GFP_KERNEL); if (!vnic->mc_list) { rc = -ENOMEM; goto out; } } if (bp->flags & BNXT_FLAG_CHIP_P5) goto vnic_skip_grps; if (vnic->flags & BNXT_VNIC_RSS_FLAG) max_rings = bp->rx_nr_rings; else max_rings = 1; vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL); if (!vnic->fw_grp_ids) { rc = -ENOMEM; goto out; } vnic_skip_grps: if ((bp->flags & BNXT_FLAG_NEW_RSS_CAP) && !(vnic->flags & BNXT_VNIC_RSS_FLAG)) continue; /* Allocate rss table and hash key */ size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16)); if (bp->flags & BNXT_FLAG_CHIP_P5) size = L1_CACHE_ALIGN(BNXT_MAX_RSS_TABLE_SIZE_P5); vnic->rss_table_size = size + HW_HASH_KEY_SIZE; vnic->rss_table = dma_alloc_coherent(&pdev->dev, vnic->rss_table_size, &vnic->rss_table_dma_addr, GFP_KERNEL); if (!vnic->rss_table) { rc = -ENOMEM; goto out; } vnic->rss_hash_key = ((void *)vnic->rss_table) + size; vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size; } return 0; out: return rc; } static void bnxt_free_hwrm_resources(struct bnxt *bp) { struct bnxt_hwrm_wait_token *token; dma_pool_destroy(bp->hwrm_dma_pool); bp->hwrm_dma_pool = NULL; rcu_read_lock(); hlist_for_each_entry_rcu(token, &bp->hwrm_pending_list, node) WRITE_ONCE(token->state, BNXT_HWRM_CANCELLED); rcu_read_unlock(); } static int bnxt_alloc_hwrm_resources(struct bnxt *bp) { bp->hwrm_dma_pool = dma_pool_create("bnxt_hwrm", &bp->pdev->dev, BNXT_HWRM_DMA_SIZE, BNXT_HWRM_DMA_ALIGN, 0); if (!bp->hwrm_dma_pool) return -ENOMEM; INIT_HLIST_HEAD(&bp->hwrm_pending_list); return 0; } static void bnxt_free_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats) { kfree(stats->hw_masks); stats->hw_masks = NULL; kfree(stats->sw_stats); stats->sw_stats = NULL; if (stats->hw_stats) { dma_free_coherent(&bp->pdev->dev, stats->len, stats->hw_stats, stats->hw_stats_map); stats->hw_stats = NULL; } } static int bnxt_alloc_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats, bool alloc_masks) { stats->hw_stats = dma_alloc_coherent(&bp->pdev->dev, stats->len, &stats->hw_stats_map, GFP_KERNEL); if (!stats->hw_stats) return -ENOMEM; stats->sw_stats = kzalloc(stats->len, GFP_KERNEL); if (!stats->sw_stats) goto stats_mem_err; if (alloc_masks) { stats->hw_masks = kzalloc(stats->len, GFP_KERNEL); if (!stats->hw_masks) goto stats_mem_err; } return 0; stats_mem_err: bnxt_free_stats_mem(bp, stats); return -ENOMEM; } static void bnxt_fill_masks(u64 *mask_arr, u64 mask, int count) { int i; for (i = 0; i < count; i++) mask_arr[i] = mask; } static void bnxt_copy_hw_masks(u64 *mask_arr, __le64 *hw_mask_arr, int count) { int i; for (i = 0; i < count; i++) mask_arr[i] = le64_to_cpu(hw_mask_arr[i]); } static int bnxt_hwrm_func_qstat_ext(struct bnxt *bp, struct bnxt_stats_mem *stats) { struct hwrm_func_qstats_ext_output *resp; struct hwrm_func_qstats_ext_input *req; __le64 *hw_masks; int rc; if (!(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED) || !(bp->flags & BNXT_FLAG_CHIP_P5)) return -EOPNOTSUPP; rc = hwrm_req_init(bp, req, HWRM_FUNC_QSTATS_EXT); if (rc) return rc; req->fid = cpu_to_le16(0xffff); req->flags = FUNC_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) { hw_masks = &resp->rx_ucast_pkts; bnxt_copy_hw_masks(stats->hw_masks, hw_masks, stats->len / 8); } hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags); static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags); static void bnxt_init_stats(struct bnxt *bp) { struct bnxt_napi *bnapi = bp->bnapi[0]; struct bnxt_cp_ring_info *cpr; struct bnxt_stats_mem *stats; __le64 *rx_stats, *tx_stats; int rc, rx_count, tx_count; u64 *rx_masks, *tx_masks; u64 mask; u8 flags; cpr = &bnapi->cp_ring; stats = &cpr->stats; rc = bnxt_hwrm_func_qstat_ext(bp, stats); if (rc) { if (bp->flags & BNXT_FLAG_CHIP_P5) mask = (1ULL << 48) - 1; else mask = -1ULL; bnxt_fill_masks(stats->hw_masks, mask, stats->len / 8); } if (bp->flags & BNXT_FLAG_PORT_STATS) { stats = &bp->port_stats; rx_stats = stats->hw_stats; rx_masks = stats->hw_masks; rx_count = sizeof(struct rx_port_stats) / 8; tx_stats = rx_stats + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; tx_masks = rx_masks + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; tx_count = sizeof(struct tx_port_stats) / 8; flags = PORT_QSTATS_REQ_FLAGS_COUNTER_MASK; rc = bnxt_hwrm_port_qstats(bp, flags); if (rc) { mask = (1ULL << 40) - 1; bnxt_fill_masks(rx_masks, mask, rx_count); bnxt_fill_masks(tx_masks, mask, tx_count); } else { bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count); bnxt_copy_hw_masks(tx_masks, tx_stats, tx_count); bnxt_hwrm_port_qstats(bp, 0); } } if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) { stats = &bp->rx_port_stats_ext; rx_stats = stats->hw_stats; rx_masks = stats->hw_masks; rx_count = sizeof(struct rx_port_stats_ext) / 8; stats = &bp->tx_port_stats_ext; tx_stats = stats->hw_stats; tx_masks = stats->hw_masks; tx_count = sizeof(struct tx_port_stats_ext) / 8; flags = PORT_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK; rc = bnxt_hwrm_port_qstats_ext(bp, flags); if (rc) { mask = (1ULL << 40) - 1; bnxt_fill_masks(rx_masks, mask, rx_count); if (tx_stats) bnxt_fill_masks(tx_masks, mask, tx_count); } else { bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count); if (tx_stats) bnxt_copy_hw_masks(tx_masks, tx_stats, tx_count); bnxt_hwrm_port_qstats_ext(bp, 0); } } } static void bnxt_free_port_stats(struct bnxt *bp) { bp->flags &= ~BNXT_FLAG_PORT_STATS; bp->flags &= ~BNXT_FLAG_PORT_STATS_EXT; bnxt_free_stats_mem(bp, &bp->port_stats); bnxt_free_stats_mem(bp, &bp->rx_port_stats_ext); bnxt_free_stats_mem(bp, &bp->tx_port_stats_ext); } static void bnxt_free_ring_stats(struct bnxt *bp) { int i; if (!bp->bnapi) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; bnxt_free_stats_mem(bp, &cpr->stats); } } static int bnxt_alloc_stats(struct bnxt *bp) { u32 size, i; int rc; size = bp->hw_ring_stats_size; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; cpr->stats.len = size; rc = bnxt_alloc_stats_mem(bp, &cpr->stats, !i); if (rc) return rc; cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; } if (BNXT_VF(bp) || bp->chip_num == CHIP_NUM_58700) return 0; if (bp->port_stats.hw_stats) goto alloc_ext_stats; bp->port_stats.len = BNXT_PORT_STATS_SIZE; rc = bnxt_alloc_stats_mem(bp, &bp->port_stats, true); if (rc) return rc; bp->flags |= BNXT_FLAG_PORT_STATS; alloc_ext_stats: /* Display extended statistics only if FW supports it */ if (bp->hwrm_spec_code < 0x10804 || bp->hwrm_spec_code == 0x10900) if (!(bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) return 0; if (bp->rx_port_stats_ext.hw_stats) goto alloc_tx_ext_stats; bp->rx_port_stats_ext.len = sizeof(struct rx_port_stats_ext); rc = bnxt_alloc_stats_mem(bp, &bp->rx_port_stats_ext, true); /* Extended stats are optional */ if (rc) return 0; alloc_tx_ext_stats: if (bp->tx_port_stats_ext.hw_stats) return 0; if (bp->hwrm_spec_code >= 0x10902 || (bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) { bp->tx_port_stats_ext.len = sizeof(struct tx_port_stats_ext); rc = bnxt_alloc_stats_mem(bp, &bp->tx_port_stats_ext, true); /* Extended stats are optional */ if (rc) return 0; } bp->flags |= BNXT_FLAG_PORT_STATS_EXT; return 0; } static void bnxt_clear_ring_indices(struct bnxt *bp) { int i; if (!bp->bnapi) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr; struct bnxt_rx_ring_info *rxr; struct bnxt_tx_ring_info *txr; if (!bnapi) continue; cpr = &bnapi->cp_ring; cpr->cp_raw_cons = 0; txr = bnapi->tx_ring; if (txr) { txr->tx_prod = 0; txr->tx_cons = 0; } rxr = bnapi->rx_ring; if (rxr) { rxr->rx_prod = 0; rxr->rx_agg_prod = 0; rxr->rx_sw_agg_prod = 0; rxr->rx_next_cons = 0; } } } static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit) { #ifdef CONFIG_RFS_ACCEL int i; /* Under rtnl_lock and all our NAPIs have been disabled. It's * safe to delete the hash table. */ for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { struct hlist_head *head; struct hlist_node *tmp; struct bnxt_ntuple_filter *fltr; head = &bp->ntp_fltr_hash_tbl[i]; hlist_for_each_entry_safe(fltr, tmp, head, hash) { hlist_del(&fltr->hash); kfree(fltr); } } if (irq_reinit) { bitmap_free(bp->ntp_fltr_bmap); bp->ntp_fltr_bmap = NULL; } bp->ntp_fltr_count = 0; #endif } static int bnxt_alloc_ntp_fltrs(struct bnxt *bp) { #ifdef CONFIG_RFS_ACCEL int i, rc = 0; if (!(bp->flags & BNXT_FLAG_RFS)) return 0; for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]); bp->ntp_fltr_count = 0; bp->ntp_fltr_bmap = bitmap_zalloc(BNXT_NTP_FLTR_MAX_FLTR, GFP_KERNEL); if (!bp->ntp_fltr_bmap) rc = -ENOMEM; return rc; #else return 0; #endif } static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init) { bnxt_free_vnic_attributes(bp); bnxt_free_tx_rings(bp); bnxt_free_rx_rings(bp); bnxt_free_cp_rings(bp); bnxt_free_all_cp_arrays(bp); bnxt_free_ntp_fltrs(bp, irq_re_init); if (irq_re_init) { bnxt_free_ring_stats(bp); if (!(bp->phy_flags & BNXT_PHY_FL_PORT_STATS_NO_RESET) || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) bnxt_free_port_stats(bp); bnxt_free_ring_grps(bp); bnxt_free_vnics(bp); kfree(bp->tx_ring_map); bp->tx_ring_map = NULL; kfree(bp->tx_ring); bp->tx_ring = NULL; kfree(bp->rx_ring); bp->rx_ring = NULL; kfree(bp->bnapi); bp->bnapi = NULL; } else { bnxt_clear_ring_indices(bp); } } static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init) { int i, j, rc, size, arr_size; void *bnapi; if (irq_re_init) { /* Allocate bnapi mem pointer array and mem block for * all queues */ arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) * bp->cp_nr_rings); size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi)); bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL); if (!bnapi) return -ENOMEM; bp->bnapi = bnapi; bnapi += arr_size; for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) { bp->bnapi[i] = bnapi; bp->bnapi[i]->index = i; bp->bnapi[i]->bp = bp; if (bp->flags & BNXT_FLAG_CHIP_P5) { struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; cpr->cp_ring_struct.ring_mem.flags = BNXT_RMEM_RING_PTE_FLAG; } } bp->rx_ring = kcalloc(bp->rx_nr_rings, sizeof(struct bnxt_rx_ring_info), GFP_KERNEL); if (!bp->rx_ring) return -ENOMEM; for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; if (bp->flags & BNXT_FLAG_CHIP_P5) { rxr->rx_ring_struct.ring_mem.flags = BNXT_RMEM_RING_PTE_FLAG; rxr->rx_agg_ring_struct.ring_mem.flags = BNXT_RMEM_RING_PTE_FLAG; } rxr->bnapi = bp->bnapi[i]; bp->bnapi[i]->rx_ring = &bp->rx_ring[i]; } bp->tx_ring = kcalloc(bp->tx_nr_rings, sizeof(struct bnxt_tx_ring_info), GFP_KERNEL); if (!bp->tx_ring) return -ENOMEM; bp->tx_ring_map = kcalloc(bp->tx_nr_rings, sizeof(u16), GFP_KERNEL); if (!bp->tx_ring_map) return -ENOMEM; if (bp->flags & BNXT_FLAG_SHARED_RINGS) j = 0; else j = bp->rx_nr_rings; for (i = 0; i < bp->tx_nr_rings; i++, j++) { struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; if (bp->flags & BNXT_FLAG_CHIP_P5) txr->tx_ring_struct.ring_mem.flags = BNXT_RMEM_RING_PTE_FLAG; txr->bnapi = bp->bnapi[j]; bp->bnapi[j]->tx_ring = txr; bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i; if (i >= bp->tx_nr_rings_xdp) { txr->txq_index = i - bp->tx_nr_rings_xdp; bp->bnapi[j]->tx_int = bnxt_tx_int; } else { bp->bnapi[j]->flags |= BNXT_NAPI_FLAG_XDP; bp->bnapi[j]->tx_int = bnxt_tx_int_xdp; } } rc = bnxt_alloc_stats(bp); if (rc) goto alloc_mem_err; bnxt_init_stats(bp); rc = bnxt_alloc_ntp_fltrs(bp); if (rc) goto alloc_mem_err; rc = bnxt_alloc_vnics(bp); if (rc) goto alloc_mem_err; } rc = bnxt_alloc_all_cp_arrays(bp); if (rc) goto alloc_mem_err; bnxt_init_ring_struct(bp); rc = bnxt_alloc_rx_rings(bp); if (rc) goto alloc_mem_err; rc = bnxt_alloc_tx_rings(bp); if (rc) goto alloc_mem_err; rc = bnxt_alloc_cp_rings(bp); if (rc) goto alloc_mem_err; bp->vnic_info[0].flags |= BNXT_VNIC_RSS_FLAG | BNXT_VNIC_MCAST_FLAG | BNXT_VNIC_UCAST_FLAG; rc = bnxt_alloc_vnic_attributes(bp); if (rc) goto alloc_mem_err; return 0; alloc_mem_err: bnxt_free_mem(bp, true); return rc; } static void bnxt_disable_int(struct bnxt *bp) { int i; if (!bp->bnapi) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; if (ring->fw_ring_id != INVALID_HW_RING_ID) bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons); } } static int bnxt_cp_num_to_irq_num(struct bnxt *bp, int n) { struct bnxt_napi *bnapi = bp->bnapi[n]; struct bnxt_cp_ring_info *cpr; cpr = &bnapi->cp_ring; return cpr->cp_ring_struct.map_idx; } static void bnxt_disable_int_sync(struct bnxt *bp) { int i; if (!bp->irq_tbl) return; atomic_inc(&bp->intr_sem); bnxt_disable_int(bp); for (i = 0; i < bp->cp_nr_rings; i++) { int map_idx = bnxt_cp_num_to_irq_num(bp, i); synchronize_irq(bp->irq_tbl[map_idx].vector); } } static void bnxt_enable_int(struct bnxt *bp) { int i; atomic_set(&bp->intr_sem, 0); for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; bnxt_db_nq_arm(bp, &cpr->cp_db, cpr->cp_raw_cons); } } int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bmap_size, bool async_only) { DECLARE_BITMAP(async_events_bmap, 256); u32 *events = (u32 *)async_events_bmap; struct hwrm_func_drv_rgtr_output *resp; struct hwrm_func_drv_rgtr_input *req; u32 flags; int rc, i; rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_RGTR); if (rc) return rc; req->enables = cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE | FUNC_DRV_RGTR_REQ_ENABLES_VER | FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD); req->os_type = cpu_to_le16(FUNC_DRV_RGTR_REQ_OS_TYPE_LINUX); flags = FUNC_DRV_RGTR_REQ_FLAGS_16BIT_VER_MODE; if (bp->fw_cap & BNXT_FW_CAP_HOT_RESET) flags |= FUNC_DRV_RGTR_REQ_FLAGS_HOT_RESET_SUPPORT; if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) flags |= FUNC_DRV_RGTR_REQ_FLAGS_ERROR_RECOVERY_SUPPORT | FUNC_DRV_RGTR_REQ_FLAGS_MASTER_SUPPORT; req->flags = cpu_to_le32(flags); req->ver_maj_8b = DRV_VER_MAJ; req->ver_min_8b = DRV_VER_MIN; req->ver_upd_8b = DRV_VER_UPD; req->ver_maj = cpu_to_le16(DRV_VER_MAJ); req->ver_min = cpu_to_le16(DRV_VER_MIN); req->ver_upd = cpu_to_le16(DRV_VER_UPD); if (BNXT_PF(bp)) { u32 data[8]; int i; memset(data, 0, sizeof(data)); for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) { u16 cmd = bnxt_vf_req_snif[i]; unsigned int bit, idx; idx = cmd / 32; bit = cmd % 32; data[idx] |= 1 << bit; } for (i = 0; i < 8; i++) req->vf_req_fwd[i] = cpu_to_le32(data[i]); req->enables |= cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD); } if (bp->fw_cap & BNXT_FW_CAP_OVS_64BIT_HANDLE) req->flags |= cpu_to_le32( FUNC_DRV_RGTR_REQ_FLAGS_FLOW_HANDLE_64BIT_MODE); memset(async_events_bmap, 0, sizeof(async_events_bmap)); for (i = 0; i < ARRAY_SIZE(bnxt_async_events_arr); i++) { u16 event_id = bnxt_async_events_arr[i]; if (event_id == ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY && !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) continue; __set_bit(bnxt_async_events_arr[i], async_events_bmap); } if (bmap && bmap_size) { for (i = 0; i < bmap_size; i++) { if (test_bit(i, bmap)) __set_bit(i, async_events_bmap); } } for (i = 0; i < 8; i++) req->async_event_fwd[i] |= cpu_to_le32(events[i]); if (async_only) req->enables = cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) { set_bit(BNXT_STATE_DRV_REGISTERED, &bp->state); if (resp->flags & cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED)) bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE; } hwrm_req_drop(bp, req); return rc; } int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp) { struct hwrm_func_drv_unrgtr_input *req; int rc; if (!test_and_clear_bit(BNXT_STATE_DRV_REGISTERED, &bp->state)) return 0; rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_UNRGTR); if (rc) return rc; return hwrm_req_send(bp, req); } static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type) { struct hwrm_tunnel_dst_port_free_input *req; int rc; if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN && bp->vxlan_fw_dst_port_id == INVALID_HW_RING_ID) return 0; if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE && bp->nge_fw_dst_port_id == INVALID_HW_RING_ID) return 0; rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_FREE); if (rc) return rc; req->tunnel_type = tunnel_type; switch (tunnel_type) { case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN: req->tunnel_dst_port_id = cpu_to_le16(bp->vxlan_fw_dst_port_id); bp->vxlan_port = 0; bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID; break; case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE: req->tunnel_dst_port_id = cpu_to_le16(bp->nge_fw_dst_port_id); bp->nge_port = 0; bp->nge_fw_dst_port_id = INVALID_HW_RING_ID; break; default: break; } rc = hwrm_req_send(bp, req); if (rc) netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n", rc); return rc; } static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port, u8 tunnel_type) { struct hwrm_tunnel_dst_port_alloc_output *resp; struct hwrm_tunnel_dst_port_alloc_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_ALLOC); if (rc) return rc; req->tunnel_type = tunnel_type; req->tunnel_dst_port_val = port; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) { netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n", rc); goto err_out; } switch (tunnel_type) { case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN: bp->vxlan_port = port; bp->vxlan_fw_dst_port_id = le16_to_cpu(resp->tunnel_dst_port_id); break; case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE: bp->nge_port = port; bp->nge_fw_dst_port_id = le16_to_cpu(resp->tunnel_dst_port_id); break; default: break; } err_out: hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id) { struct hwrm_cfa_l2_set_rx_mask_input *req; struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; int rc; rc = hwrm_req_init(bp, req, HWRM_CFA_L2_SET_RX_MASK); if (rc) return rc; req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); if (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST) { req->num_mc_entries = cpu_to_le32(vnic->mc_list_count); req->mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping); } req->mask = cpu_to_le32(vnic->rx_mask); return hwrm_req_send_silent(bp, req); } #ifdef CONFIG_RFS_ACCEL static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp, struct bnxt_ntuple_filter *fltr) { struct hwrm_cfa_ntuple_filter_free_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_FREE); if (rc) return rc; req->ntuple_filter_id = fltr->filter_id; return hwrm_req_send(bp, req); } #define BNXT_NTP_FLTR_FLAGS \ (CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_MACADDR | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID) #define BNXT_NTP_TUNNEL_FLTR_FLAG \ CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp, struct bnxt_ntuple_filter *fltr) { struct hwrm_cfa_ntuple_filter_alloc_output *resp; struct hwrm_cfa_ntuple_filter_alloc_input *req; struct flow_keys *keys = &fltr->fkeys; struct bnxt_vnic_info *vnic; u32 flags = 0; int rc; rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_ALLOC); if (rc) return rc; req->l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[fltr->l2_fltr_idx]; if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) { flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DEST_RFS_RING_IDX; req->dst_id = cpu_to_le16(fltr->rxq); } else { vnic = &bp->vnic_info[fltr->rxq + 1]; req->dst_id = cpu_to_le16(vnic->fw_vnic_id); } req->flags = cpu_to_le32(flags); req->enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS); req->ethertype = htons(ETH_P_IP); memcpy(req->src_macaddr, fltr->src_mac_addr, ETH_ALEN); req->ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4; req->ip_protocol = keys->basic.ip_proto; if (keys->basic.n_proto == htons(ETH_P_IPV6)) { int i; req->ethertype = htons(ETH_P_IPV6); req->ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6; *(struct in6_addr *)&req->src_ipaddr[0] = keys->addrs.v6addrs.src; *(struct in6_addr *)&req->dst_ipaddr[0] = keys->addrs.v6addrs.dst; for (i = 0; i < 4; i++) { req->src_ipaddr_mask[i] = cpu_to_be32(0xffffffff); req->dst_ipaddr_mask[i] = cpu_to_be32(0xffffffff); } } else { req->src_ipaddr[0] = keys->addrs.v4addrs.src; req->src_ipaddr_mask[0] = cpu_to_be32(0xffffffff); req->dst_ipaddr[0] = keys->addrs.v4addrs.dst; req->dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff); } if (keys->control.flags & FLOW_DIS_ENCAPSULATION) { req->enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG); req->tunnel_type = CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL; } req->src_port = keys->ports.src; req->src_port_mask = cpu_to_be16(0xffff); req->dst_port = keys->ports.dst; req->dst_port_mask = cpu_to_be16(0xffff); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) fltr->filter_id = resp->ntuple_filter_id; hwrm_req_drop(bp, req); return rc; } #endif static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx, const u8 *mac_addr) { struct hwrm_cfa_l2_filter_alloc_output *resp; struct hwrm_cfa_l2_filter_alloc_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_ALLOC); if (rc) return rc; req->flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX); if (!BNXT_CHIP_TYPE_NITRO_A0(bp)) req->flags |= cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST); req->dst_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_vnic_id); req->enables = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR | CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID | CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK); memcpy(req->l2_addr, mac_addr, ETH_ALEN); req->l2_addr_mask[0] = 0xff; req->l2_addr_mask[1] = 0xff; req->l2_addr_mask[2] = 0xff; req->l2_addr_mask[3] = 0xff; req->l2_addr_mask[4] = 0xff; req->l2_addr_mask[5] = 0xff; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) bp->vnic_info[vnic_id].fw_l2_filter_id[idx] = resp->l2_filter_id; hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp) { struct hwrm_cfa_l2_filter_free_input *req; u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */ int rc; /* Any associated ntuple filters will also be cleared by firmware. */ rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_FREE); if (rc) return rc; hwrm_req_hold(bp, req); for (i = 0; i < num_of_vnics; i++) { struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; for (j = 0; j < vnic->uc_filter_count; j++) { req->l2_filter_id = vnic->fw_l2_filter_id[j]; rc = hwrm_req_send(bp, req); } vnic->uc_filter_count = 0; } hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags) { struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; u16 max_aggs = VNIC_TPA_CFG_REQ_MAX_AGGS_MAX; struct hwrm_vnic_tpa_cfg_input *req; int rc; if (vnic->fw_vnic_id == INVALID_HW_RING_ID) return 0; rc = hwrm_req_init(bp, req, HWRM_VNIC_TPA_CFG); if (rc) return rc; if (tpa_flags) { u16 mss = bp->dev->mtu - 40; u32 nsegs, n, segs = 0, flags; flags = VNIC_TPA_CFG_REQ_FLAGS_TPA | VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA | VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE | VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN | VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ; if (tpa_flags & BNXT_FLAG_GRO) flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO; req->flags = cpu_to_le32(flags); req->enables = cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS | VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS | VNIC_TPA_CFG_REQ_ENABLES_MIN_AGG_LEN); /* Number of segs are log2 units, and first packet is not * included as part of this units. */ if (mss <= BNXT_RX_PAGE_SIZE) { n = BNXT_RX_PAGE_SIZE / mss; nsegs = (MAX_SKB_FRAGS - 1) * n; } else { n = mss / BNXT_RX_PAGE_SIZE; if (mss & (BNXT_RX_PAGE_SIZE - 1)) n++; nsegs = (MAX_SKB_FRAGS - n) / n; } if (bp->flags & BNXT_FLAG_CHIP_P5) { segs = MAX_TPA_SEGS_P5; max_aggs = bp->max_tpa; } else { segs = ilog2(nsegs); } req->max_agg_segs = cpu_to_le16(segs); req->max_aggs = cpu_to_le16(max_aggs); req->min_agg_len = cpu_to_le32(512); } req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); return hwrm_req_send(bp, req); } static u16 bnxt_cp_ring_from_grp(struct bnxt *bp, struct bnxt_ring_struct *ring) { struct bnxt_ring_grp_info *grp_info; grp_info = &bp->grp_info[ring->grp_idx]; return grp_info->cp_fw_ring_id; } static u16 bnxt_cp_ring_for_rx(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) { if (bp->flags & BNXT_FLAG_CHIP_P5) { struct bnxt_napi *bnapi = rxr->bnapi; struct bnxt_cp_ring_info *cpr; cpr = bnapi->cp_ring.cp_ring_arr[BNXT_RX_HDL]; return cpr->cp_ring_struct.fw_ring_id; } else { return bnxt_cp_ring_from_grp(bp, &rxr->rx_ring_struct); } } static u16 bnxt_cp_ring_for_tx(struct bnxt *bp, struct bnxt_tx_ring_info *txr) { if (bp->flags & BNXT_FLAG_CHIP_P5) { struct bnxt_napi *bnapi = txr->bnapi; struct bnxt_cp_ring_info *cpr; cpr = bnapi->cp_ring.cp_ring_arr[BNXT_TX_HDL]; return cpr->cp_ring_struct.fw_ring_id; } else { return bnxt_cp_ring_from_grp(bp, &txr->tx_ring_struct); } } static int bnxt_alloc_rss_indir_tbl(struct bnxt *bp) { int entries; if (bp->flags & BNXT_FLAG_CHIP_P5) entries = BNXT_MAX_RSS_TABLE_ENTRIES_P5; else entries = HW_HASH_INDEX_SIZE; bp->rss_indir_tbl_entries = entries; bp->rss_indir_tbl = kmalloc_array(entries, sizeof(*bp->rss_indir_tbl), GFP_KERNEL); if (!bp->rss_indir_tbl) return -ENOMEM; return 0; } static void bnxt_set_dflt_rss_indir_tbl(struct bnxt *bp) { u16 max_rings, max_entries, pad, i; if (!bp->rx_nr_rings) return; if (BNXT_CHIP_TYPE_NITRO_A0(bp)) max_rings = bp->rx_nr_rings - 1; else max_rings = bp->rx_nr_rings; max_entries = bnxt_get_rxfh_indir_size(bp->dev); for (i = 0; i < max_entries; i++) bp->rss_indir_tbl[i] = ethtool_rxfh_indir_default(i, max_rings); pad = bp->rss_indir_tbl_entries - max_entries; if (pad) memset(&bp->rss_indir_tbl[i], 0, pad * sizeof(u16)); } static u16 bnxt_get_max_rss_ring(struct bnxt *bp) { u16 i, tbl_size, max_ring = 0; if (!bp->rss_indir_tbl) return 0; tbl_size = bnxt_get_rxfh_indir_size(bp->dev); for (i = 0; i < tbl_size; i++) max_ring = max(max_ring, bp->rss_indir_tbl[i]); return max_ring; } int bnxt_get_nr_rss_ctxs(struct bnxt *bp, int rx_rings) { if (bp->flags & BNXT_FLAG_CHIP_P5) return DIV_ROUND_UP(rx_rings, BNXT_RSS_TABLE_ENTRIES_P5); if (BNXT_CHIP_TYPE_NITRO_A0(bp)) return 2; return 1; } static void bnxt_fill_hw_rss_tbl(struct bnxt *bp, struct bnxt_vnic_info *vnic) { bool no_rss = !(vnic->flags & BNXT_VNIC_RSS_FLAG); u16 i, j; /* Fill the RSS indirection table with ring group ids */ for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++) { if (!no_rss) j = bp->rss_indir_tbl[i]; vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]); } } static void bnxt_fill_hw_rss_tbl_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic) { __le16 *ring_tbl = vnic->rss_table; struct bnxt_rx_ring_info *rxr; u16 tbl_size, i; tbl_size = bnxt_get_rxfh_indir_size(bp->dev); for (i = 0; i < tbl_size; i++) { u16 ring_id, j; j = bp->rss_indir_tbl[i]; rxr = &bp->rx_ring[j]; ring_id = rxr->rx_ring_struct.fw_ring_id; *ring_tbl++ = cpu_to_le16(ring_id); ring_id = bnxt_cp_ring_for_rx(bp, rxr); *ring_tbl++ = cpu_to_le16(ring_id); } } static void __bnxt_hwrm_vnic_set_rss(struct bnxt *bp, struct hwrm_vnic_rss_cfg_input *req, struct bnxt_vnic_info *vnic) { if (bp->flags & BNXT_FLAG_CHIP_P5) bnxt_fill_hw_rss_tbl_p5(bp, vnic); else bnxt_fill_hw_rss_tbl(bp, vnic); if (bp->rss_hash_delta) { req->hash_type = cpu_to_le32(bp->rss_hash_delta); if (bp->rss_hash_cfg & bp->rss_hash_delta) req->flags |= VNIC_RSS_CFG_REQ_FLAGS_HASH_TYPE_INCLUDE; else req->flags |= VNIC_RSS_CFG_REQ_FLAGS_HASH_TYPE_EXCLUDE; } else { req->hash_type = cpu_to_le32(bp->rss_hash_cfg); } req->hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT; req->ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr); req->hash_key_tbl_addr = cpu_to_le64(vnic->rss_hash_key_dma_addr); } static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss) { struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; struct hwrm_vnic_rss_cfg_input *req; int rc; if ((bp->flags & BNXT_FLAG_CHIP_P5) || vnic->fw_rss_cos_lb_ctx[0] == INVALID_HW_RING_ID) return 0; rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG); if (rc) return rc; if (set_rss) __bnxt_hwrm_vnic_set_rss(bp, req, vnic); req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); return hwrm_req_send(bp, req); } static int bnxt_hwrm_vnic_set_rss_p5(struct bnxt *bp, u16 vnic_id, bool set_rss) { struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; struct hwrm_vnic_rss_cfg_input *req; dma_addr_t ring_tbl_map; u32 i, nr_ctxs; int rc; rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG); if (rc) return rc; req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); if (!set_rss) return hwrm_req_send(bp, req); __bnxt_hwrm_vnic_set_rss(bp, req, vnic); ring_tbl_map = vnic->rss_table_dma_addr; nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings); hwrm_req_hold(bp, req); for (i = 0; i < nr_ctxs; ring_tbl_map += BNXT_RSS_TABLE_SIZE_P5, i++) { req->ring_grp_tbl_addr = cpu_to_le64(ring_tbl_map); req->ring_table_pair_index = i; req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[i]); rc = hwrm_req_send(bp, req); if (rc) goto exit; } exit: hwrm_req_drop(bp, req); return rc; } static void bnxt_hwrm_update_rss_hash_cfg(struct bnxt *bp) { struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; struct hwrm_vnic_rss_qcfg_output *resp; struct hwrm_vnic_rss_qcfg_input *req; if (hwrm_req_init(bp, req, HWRM_VNIC_RSS_QCFG)) return; /* all contexts configured to same hash_type, zero always exists */ req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); resp = hwrm_req_hold(bp, req); if (!hwrm_req_send(bp, req)) { bp->rss_hash_cfg = le32_to_cpu(resp->hash_type) ?: bp->rss_hash_cfg; bp->rss_hash_delta = 0; } hwrm_req_drop(bp, req); } static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id) { struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; struct hwrm_vnic_plcmodes_cfg_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_VNIC_PLCMODES_CFG); if (rc) return rc; req->flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT); req->enables = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID); if (BNXT_RX_PAGE_MODE(bp)) { req->jumbo_thresh = cpu_to_le16(bp->rx_buf_use_size); } else { req->flags |= cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 | VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6); req->enables |= cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID); req->jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh); req->hds_threshold = cpu_to_le16(bp->rx_copy_thresh); } req->vnic_id = cpu_to_le32(vnic->fw_vnic_id); return hwrm_req_send(bp, req); } static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, u16 vnic_id, u16 ctx_idx) { struct hwrm_vnic_rss_cos_lb_ctx_free_input *req; if (hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_FREE)) return; req->rss_cos_lb_ctx_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx]); hwrm_req_send(bp, req); bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = INVALID_HW_RING_ID; } static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp) { int i, j; for (i = 0; i < bp->nr_vnics; i++) { struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) { if (vnic->fw_rss_cos_lb_ctx[j] != INVALID_HW_RING_ID) bnxt_hwrm_vnic_ctx_free_one(bp, i, j); } } bp->rsscos_nr_ctxs = 0; } static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, u16 vnic_id, u16 ctx_idx) { struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp; struct hwrm_vnic_rss_cos_lb_ctx_alloc_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = le16_to_cpu(resp->rss_cos_lb_ctx_id); hwrm_req_drop(bp, req); return rc; } static u32 bnxt_get_roce_vnic_mode(struct bnxt *bp) { if (bp->flags & BNXT_FLAG_ROCE_MIRROR_CAP) return VNIC_CFG_REQ_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_MODE; return VNIC_CFG_REQ_FLAGS_ROCE_DUAL_VNIC_MODE; } int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id) { struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; struct hwrm_vnic_cfg_input *req; unsigned int ring = 0, grp_idx; u16 def_vlan = 0; int rc; rc = hwrm_req_init(bp, req, HWRM_VNIC_CFG); if (rc) return rc; if (bp->flags & BNXT_FLAG_CHIP_P5) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[0]; req->default_rx_ring_id = cpu_to_le16(rxr->rx_ring_struct.fw_ring_id); req->default_cmpl_ring_id = cpu_to_le16(bnxt_cp_ring_for_rx(bp, rxr)); req->enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DEFAULT_RX_RING_ID | VNIC_CFG_REQ_ENABLES_DEFAULT_CMPL_RING_ID); goto vnic_mru; } req->enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP); /* Only RSS support for now TBD: COS & LB */ if (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID) { req->rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | VNIC_CFG_REQ_ENABLES_MRU); } else if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) { req->rss_rule = cpu_to_le16(bp->vnic_info[0].fw_rss_cos_lb_ctx[0]); req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | VNIC_CFG_REQ_ENABLES_MRU); req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_RSS_DFLT_CR_MODE); } else { req->rss_rule = cpu_to_le16(0xffff); } if (BNXT_CHIP_TYPE_NITRO_A0(bp) && (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID)) { req->cos_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[1]); req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_COS_RULE); } else { req->cos_rule = cpu_to_le16(0xffff); } if (vnic->flags & BNXT_VNIC_RSS_FLAG) ring = 0; else if (vnic->flags & BNXT_VNIC_RFS_FLAG) ring = vnic_id - 1; else if ((vnic_id == 1) && BNXT_CHIP_TYPE_NITRO_A0(bp)) ring = bp->rx_nr_rings - 1; grp_idx = bp->rx_ring[ring].bnapi->index; req->dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id); req->lb_rule = cpu_to_le16(0xffff); vnic_mru: req->mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + VLAN_HLEN); req->vnic_id = cpu_to_le16(vnic->fw_vnic_id); #ifdef CONFIG_BNXT_SRIOV if (BNXT_VF(bp)) def_vlan = bp->vf.vlan; #endif if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan) req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE); if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) req->flags |= cpu_to_le32(bnxt_get_roce_vnic_mode(bp)); return hwrm_req_send(bp, req); } static void bnxt_hwrm_vnic_free_one(struct bnxt *bp, u16 vnic_id) { if (bp->vnic_info[vnic_id].fw_vnic_id != INVALID_HW_RING_ID) { struct hwrm_vnic_free_input *req; if (hwrm_req_init(bp, req, HWRM_VNIC_FREE)) return; req->vnic_id = cpu_to_le32(bp->vnic_info[vnic_id].fw_vnic_id); hwrm_req_send(bp, req); bp->vnic_info[vnic_id].fw_vnic_id = INVALID_HW_RING_ID; } } static void bnxt_hwrm_vnic_free(struct bnxt *bp) { u16 i; for (i = 0; i < bp->nr_vnics; i++) bnxt_hwrm_vnic_free_one(bp, i); } static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id, unsigned int start_rx_ring_idx, unsigned int nr_rings) { unsigned int i, j, grp_idx, end_idx = start_rx_ring_idx + nr_rings; struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; struct hwrm_vnic_alloc_output *resp; struct hwrm_vnic_alloc_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_VNIC_ALLOC); if (rc) return rc; if (bp->flags & BNXT_FLAG_CHIP_P5) goto vnic_no_ring_grps; /* map ring groups to this vnic */ for (i = start_rx_ring_idx, j = 0; i < end_idx; i++, j++) { grp_idx = bp->rx_ring[i].bnapi->index; if (bp->grp_info[grp_idx].fw_grp_id == INVALID_HW_RING_ID) { netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n", j, nr_rings); break; } vnic->fw_grp_ids[j] = bp->grp_info[grp_idx].fw_grp_id; } vnic_no_ring_grps: for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++) vnic->fw_rss_cos_lb_ctx[i] = INVALID_HW_RING_ID; if (vnic_id == 0) req->flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) vnic->fw_vnic_id = le32_to_cpu(resp->vnic_id); hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp) { struct hwrm_vnic_qcaps_output *resp; struct hwrm_vnic_qcaps_input *req; int rc; bp->hw_ring_stats_size = sizeof(struct ctx_hw_stats); bp->flags &= ~(BNXT_FLAG_NEW_RSS_CAP | BNXT_FLAG_ROCE_MIRROR_CAP); if (bp->hwrm_spec_code < 0x10600) return 0; rc = hwrm_req_init(bp, req, HWRM_VNIC_QCAPS); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) { u32 flags = le32_to_cpu(resp->flags); if (!(bp->flags & BNXT_FLAG_CHIP_P5) && (flags & VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP)) bp->flags |= BNXT_FLAG_NEW_RSS_CAP; if (flags & VNIC_QCAPS_RESP_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_CAP) bp->flags |= BNXT_FLAG_ROCE_MIRROR_CAP; /* Older P5 fw before EXT_HW_STATS support did not set * VLAN_STRIP_CAP properly. */ if ((flags & VNIC_QCAPS_RESP_FLAGS_VLAN_STRIP_CAP) || (BNXT_CHIP_P5_THOR(bp) && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED))) bp->fw_cap |= BNXT_FW_CAP_VLAN_RX_STRIP; if (flags & VNIC_QCAPS_RESP_FLAGS_RSS_HASH_TYPE_DELTA_CAP) bp->fw_cap |= BNXT_FW_CAP_RSS_HASH_TYPE_DELTA; bp->max_tpa_v2 = le16_to_cpu(resp->max_aggs_supported); if (bp->max_tpa_v2) { if (BNXT_CHIP_P5_THOR(bp)) bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P5; else bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P5_SR2; } } hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp) { struct hwrm_ring_grp_alloc_output *resp; struct hwrm_ring_grp_alloc_input *req; int rc; u16 i; if (bp->flags & BNXT_FLAG_CHIP_P5) return 0; rc = hwrm_req_init(bp, req, HWRM_RING_GRP_ALLOC); if (rc) return rc; resp = hwrm_req_hold(bp, req); for (i = 0; i < bp->rx_nr_rings; i++) { unsigned int grp_idx = bp->rx_ring[i].bnapi->index; req->cr = cpu_to_le16(bp->grp_info[grp_idx].cp_fw_ring_id); req->rr = cpu_to_le16(bp->grp_info[grp_idx].rx_fw_ring_id); req->ar = cpu_to_le16(bp->grp_info[grp_idx].agg_fw_ring_id); req->sc = cpu_to_le16(bp->grp_info[grp_idx].fw_stats_ctx); rc = hwrm_req_send(bp, req); if (rc) break; bp->grp_info[grp_idx].fw_grp_id = le32_to_cpu(resp->ring_group_id); } hwrm_req_drop(bp, req); return rc; } static void bnxt_hwrm_ring_grp_free(struct bnxt *bp) { struct hwrm_ring_grp_free_input *req; u16 i; if (!bp->grp_info || (bp->flags & BNXT_FLAG_CHIP_P5)) return; if (hwrm_req_init(bp, req, HWRM_RING_GRP_FREE)) return; hwrm_req_hold(bp, req); for (i = 0; i < bp->cp_nr_rings; i++) { if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID) continue; req->ring_group_id = cpu_to_le32(bp->grp_info[i].fw_grp_id); hwrm_req_send(bp, req); bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; } hwrm_req_drop(bp, req); } static int hwrm_ring_alloc_send_msg(struct bnxt *bp, struct bnxt_ring_struct *ring, u32 ring_type, u32 map_index) { struct hwrm_ring_alloc_output *resp; struct hwrm_ring_alloc_input *req; struct bnxt_ring_mem_info *rmem = &ring->ring_mem; struct bnxt_ring_grp_info *grp_info; int rc, err = 0; u16 ring_id; rc = hwrm_req_init(bp, req, HWRM_RING_ALLOC); if (rc) goto exit; req->enables = 0; if (rmem->nr_pages > 1) { req->page_tbl_addr = cpu_to_le64(rmem->pg_tbl_map); /* Page size is in log2 units */ req->page_size = BNXT_PAGE_SHIFT; req->page_tbl_depth = 1; } else { req->page_tbl_addr = cpu_to_le64(rmem->dma_arr[0]); } req->fbo = 0; /* Association of ring index with doorbell index and MSIX number */ req->logical_id = cpu_to_le16(map_index); switch (ring_type) { case HWRM_RING_ALLOC_TX: { struct bnxt_tx_ring_info *txr; txr = container_of(ring, struct bnxt_tx_ring_info, tx_ring_struct); req->ring_type = RING_ALLOC_REQ_RING_TYPE_TX; /* Association of transmit ring with completion ring */ grp_info = &bp->grp_info[ring->grp_idx]; req->cmpl_ring_id = cpu_to_le16(bnxt_cp_ring_for_tx(bp, txr)); req->length = cpu_to_le32(bp->tx_ring_mask + 1); req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); req->queue_id = cpu_to_le16(ring->queue_id); break; } case HWRM_RING_ALLOC_RX: req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX; req->length = cpu_to_le32(bp->rx_ring_mask + 1); if (bp->flags & BNXT_FLAG_CHIP_P5) { u16 flags = 0; /* Association of rx ring with stats context */ grp_info = &bp->grp_info[ring->grp_idx]; req->rx_buf_size = cpu_to_le16(bp->rx_buf_use_size); req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); req->enables |= cpu_to_le32( RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID); if (NET_IP_ALIGN == 2) flags = RING_ALLOC_REQ_FLAGS_RX_SOP_PAD; req->flags = cpu_to_le16(flags); } break; case HWRM_RING_ALLOC_AGG: if (bp->flags & BNXT_FLAG_CHIP_P5) { req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX_AGG; /* Association of agg ring with rx ring */ grp_info = &bp->grp_info[ring->grp_idx]; req->rx_ring_id = cpu_to_le16(grp_info->rx_fw_ring_id); req->rx_buf_size = cpu_to_le16(BNXT_RX_PAGE_SIZE); req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx); req->enables |= cpu_to_le32( RING_ALLOC_REQ_ENABLES_RX_RING_ID_VALID | RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID); } else { req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX; } req->length = cpu_to_le32(bp->rx_agg_ring_mask + 1); break; case HWRM_RING_ALLOC_CMPL: req->ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL; req->length = cpu_to_le32(bp->cp_ring_mask + 1); if (bp->flags & BNXT_FLAG_CHIP_P5) { /* Association of cp ring with nq */ grp_info = &bp->grp_info[map_index]; req->nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id); req->cq_handle = cpu_to_le64(ring->handle); req->enables |= cpu_to_le32( RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID); } else if (bp->flags & BNXT_FLAG_USING_MSIX) { req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; } break; case HWRM_RING_ALLOC_NQ: req->ring_type = RING_ALLOC_REQ_RING_TYPE_NQ; req->length = cpu_to_le32(bp->cp_ring_mask + 1); if (bp->flags & BNXT_FLAG_USING_MSIX) req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; break; default: netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n", ring_type); return -1; } resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); err = le16_to_cpu(resp->error_code); ring_id = le16_to_cpu(resp->ring_id); hwrm_req_drop(bp, req); exit: if (rc || err) { netdev_err(bp->dev, "hwrm_ring_alloc type %d failed. rc:%x err:%x\n", ring_type, rc, err); return -EIO; } ring->fw_ring_id = ring_id; return rc; } static int bnxt_hwrm_set_async_event_cr(struct bnxt *bp, int idx) { int rc; if (BNXT_PF(bp)) { struct hwrm_func_cfg_input *req; rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); if (rc) return rc; req->fid = cpu_to_le16(0xffff); req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR); req->async_event_cr = cpu_to_le16(idx); return hwrm_req_send(bp, req); } else { struct hwrm_func_vf_cfg_input *req; rc = hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG); if (rc) return rc; req->enables = cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_ASYNC_EVENT_CR); req->async_event_cr = cpu_to_le16(idx); return hwrm_req_send(bp, req); } } static void bnxt_set_db(struct bnxt *bp, struct bnxt_db_info *db, u32 ring_type, u32 map_idx, u32 xid) { if (bp->flags & BNXT_FLAG_CHIP_P5) { if (BNXT_PF(bp)) db->doorbell = bp->bar1 + DB_PF_OFFSET_P5; else db->doorbell = bp->bar1 + DB_VF_OFFSET_P5; switch (ring_type) { case HWRM_RING_ALLOC_TX: db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SQ; break; case HWRM_RING_ALLOC_RX: case HWRM_RING_ALLOC_AGG: db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SRQ; break; case HWRM_RING_ALLOC_CMPL: db->db_key64 = DBR_PATH_L2; break; case HWRM_RING_ALLOC_NQ: db->db_key64 = DBR_PATH_L2; break; } db->db_key64 |= (u64)xid << DBR_XID_SFT; } else { db->doorbell = bp->bar1 + map_idx * 0x80; switch (ring_type) { case HWRM_RING_ALLOC_TX: db->db_key32 = DB_KEY_TX; break; case HWRM_RING_ALLOC_RX: case HWRM_RING_ALLOC_AGG: db->db_key32 = DB_KEY_RX; break; case HWRM_RING_ALLOC_CMPL: db->db_key32 = DB_KEY_CP; break; } } } static int bnxt_hwrm_ring_alloc(struct bnxt *bp) { bool agg_rings = !!(bp->flags & BNXT_FLAG_AGG_RINGS); int i, rc = 0; u32 type; if (bp->flags & BNXT_FLAG_CHIP_P5) type = HWRM_RING_ALLOC_NQ; else type = HWRM_RING_ALLOC_CMPL; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; u32 map_idx = ring->map_idx; unsigned int vector; vector = bp->irq_tbl[map_idx].vector; disable_irq_nosync(vector); rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); if (rc) { enable_irq(vector); goto err_out; } bnxt_set_db(bp, &cpr->cp_db, type, map_idx, ring->fw_ring_id); bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons); enable_irq(vector); bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id; if (!i) { rc = bnxt_hwrm_set_async_event_cr(bp, ring->fw_ring_id); if (rc) netdev_warn(bp->dev, "Failed to set async event completion ring.\n"); } } type = HWRM_RING_ALLOC_TX; for (i = 0; i < bp->tx_nr_rings; i++) { struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; struct bnxt_ring_struct *ring; u32 map_idx; if (bp->flags & BNXT_FLAG_CHIP_P5) { struct bnxt_napi *bnapi = txr->bnapi; struct bnxt_cp_ring_info *cpr, *cpr2; u32 type2 = HWRM_RING_ALLOC_CMPL; cpr = &bnapi->cp_ring; cpr2 = cpr->cp_ring_arr[BNXT_TX_HDL]; ring = &cpr2->cp_ring_struct; ring->handle = BNXT_TX_HDL; map_idx = bnapi->index; rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx); if (rc) goto err_out; bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx, ring->fw_ring_id); bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons); } ring = &txr->tx_ring_struct; map_idx = i; rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); if (rc) goto err_out; bnxt_set_db(bp, &txr->tx_db, type, map_idx, ring->fw_ring_id); } type = HWRM_RING_ALLOC_RX; for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; struct bnxt_napi *bnapi = rxr->bnapi; u32 map_idx = bnapi->index; rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); if (rc) goto err_out; bnxt_set_db(bp, &rxr->rx_db, type, map_idx, ring->fw_ring_id); /* If we have agg rings, post agg buffers first. */ if (!agg_rings) bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); bp->grp_info[map_idx].rx_fw_ring_id = ring->fw_ring_id; if (bp->flags & BNXT_FLAG_CHIP_P5) { struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; u32 type2 = HWRM_RING_ALLOC_CMPL; struct bnxt_cp_ring_info *cpr2; cpr2 = cpr->cp_ring_arr[BNXT_RX_HDL]; ring = &cpr2->cp_ring_struct; ring->handle = BNXT_RX_HDL; rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx); if (rc) goto err_out; bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx, ring->fw_ring_id); bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons); } } if (agg_rings) { type = HWRM_RING_ALLOC_AGG; for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct; u32 grp_idx = ring->grp_idx; u32 map_idx = grp_idx + bp->rx_nr_rings; rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx); if (rc) goto err_out; bnxt_set_db(bp, &rxr->rx_agg_db, type, map_idx, ring->fw_ring_id); bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); bp->grp_info[grp_idx].agg_fw_ring_id = ring->fw_ring_id; } } err_out: return rc; } static int hwrm_ring_free_send_msg(struct bnxt *bp, struct bnxt_ring_struct *ring, u32 ring_type, int cmpl_ring_id) { struct hwrm_ring_free_output *resp; struct hwrm_ring_free_input *req; u16 error_code = 0; int rc; if (BNXT_NO_FW_ACCESS(bp)) return 0; rc = hwrm_req_init(bp, req, HWRM_RING_FREE); if (rc) goto exit; req->cmpl_ring = cpu_to_le16(cmpl_ring_id); req->ring_type = ring_type; req->ring_id = cpu_to_le16(ring->fw_ring_id); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); error_code = le16_to_cpu(resp->error_code); hwrm_req_drop(bp, req); exit: if (rc || error_code) { netdev_err(bp->dev, "hwrm_ring_free type %d failed. rc:%x err:%x\n", ring_type, rc, error_code); return -EIO; } return 0; } static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path) { u32 type; int i; if (!bp->bnapi) return; for (i = 0; i < bp->tx_nr_rings; i++) { struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; struct bnxt_ring_struct *ring = &txr->tx_ring_struct; if (ring->fw_ring_id != INVALID_HW_RING_ID) { u32 cmpl_ring_id = bnxt_cp_ring_for_tx(bp, txr); hwrm_ring_free_send_msg(bp, ring, RING_FREE_REQ_RING_TYPE_TX, close_path ? cmpl_ring_id : INVALID_HW_RING_ID); ring->fw_ring_id = INVALID_HW_RING_ID; } } for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; u32 grp_idx = rxr->bnapi->index; if (ring->fw_ring_id != INVALID_HW_RING_ID) { u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr); hwrm_ring_free_send_msg(bp, ring, RING_FREE_REQ_RING_TYPE_RX, close_path ? cmpl_ring_id : INVALID_HW_RING_ID); ring->fw_ring_id = INVALID_HW_RING_ID; bp->grp_info[grp_idx].rx_fw_ring_id = INVALID_HW_RING_ID; } } if (bp->flags & BNXT_FLAG_CHIP_P5) type = RING_FREE_REQ_RING_TYPE_RX_AGG; else type = RING_FREE_REQ_RING_TYPE_RX; for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct; u32 grp_idx = rxr->bnapi->index; if (ring->fw_ring_id != INVALID_HW_RING_ID) { u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr); hwrm_ring_free_send_msg(bp, ring, type, close_path ? cmpl_ring_id : INVALID_HW_RING_ID); ring->fw_ring_id = INVALID_HW_RING_ID; bp->grp_info[grp_idx].agg_fw_ring_id = INVALID_HW_RING_ID; } } /* The completion rings are about to be freed. After that the * IRQ doorbell will not work anymore. So we need to disable * IRQ here. */ bnxt_disable_int_sync(bp); if (bp->flags & BNXT_FLAG_CHIP_P5) type = RING_FREE_REQ_RING_TYPE_NQ; else type = RING_FREE_REQ_RING_TYPE_L2_CMPL; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; struct bnxt_ring_struct *ring; int j; for (j = 0; j < 2; j++) { struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; if (cpr2) { ring = &cpr2->cp_ring_struct; if (ring->fw_ring_id == INVALID_HW_RING_ID) continue; hwrm_ring_free_send_msg(bp, ring, RING_FREE_REQ_RING_TYPE_L2_CMPL, INVALID_HW_RING_ID); ring->fw_ring_id = INVALID_HW_RING_ID; } } ring = &cpr->cp_ring_struct; if (ring->fw_ring_id != INVALID_HW_RING_ID) { hwrm_ring_free_send_msg(bp, ring, type, INVALID_HW_RING_ID); ring->fw_ring_id = INVALID_HW_RING_ID; bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; } } } static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, bool shared); static int bnxt_hwrm_get_rings(struct bnxt *bp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; struct hwrm_func_qcfg_output *resp; struct hwrm_func_qcfg_input *req; int rc; if (bp->hwrm_spec_code < 0x10601) return 0; rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); if (rc) return rc; req->fid = cpu_to_le16(0xffff); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) { hwrm_req_drop(bp, req); return rc; } hw_resc->resv_tx_rings = le16_to_cpu(resp->alloc_tx_rings); if (BNXT_NEW_RM(bp)) { u16 cp, stats; hw_resc->resv_rx_rings = le16_to_cpu(resp->alloc_rx_rings); hw_resc->resv_hw_ring_grps = le32_to_cpu(resp->alloc_hw_ring_grps); hw_resc->resv_vnics = le16_to_cpu(resp->alloc_vnics); cp = le16_to_cpu(resp->alloc_cmpl_rings); stats = le16_to_cpu(resp->alloc_stat_ctx); hw_resc->resv_irqs = cp; if (bp->flags & BNXT_FLAG_CHIP_P5) { int rx = hw_resc->resv_rx_rings; int tx = hw_resc->resv_tx_rings; if (bp->flags & BNXT_FLAG_AGG_RINGS) rx >>= 1; if (cp < (rx + tx)) { bnxt_trim_rings(bp, &rx, &tx, cp, false); if (bp->flags & BNXT_FLAG_AGG_RINGS) rx <<= 1; hw_resc->resv_rx_rings = rx; hw_resc->resv_tx_rings = tx; } hw_resc->resv_irqs = le16_to_cpu(resp->alloc_msix); hw_resc->resv_hw_ring_grps = rx; } hw_resc->resv_cp_rings = cp; hw_resc->resv_stat_ctxs = stats; } hwrm_req_drop(bp, req); return 0; } int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings) { struct hwrm_func_qcfg_output *resp; struct hwrm_func_qcfg_input *req; int rc; if (bp->hwrm_spec_code < 0x10601) return 0; rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); if (rc) return rc; req->fid = cpu_to_le16(fid); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) *tx_rings = le16_to_cpu(resp->alloc_tx_rings); hwrm_req_drop(bp, req); return rc; } static bool bnxt_rfs_supported(struct bnxt *bp); static struct hwrm_func_cfg_input * __bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, int ring_grps, int cp_rings, int stats, int vnics) { struct hwrm_func_cfg_input *req; u32 enables = 0; if (hwrm_req_init(bp, req, HWRM_FUNC_CFG)) return NULL; req->fid = cpu_to_le16(0xffff); enables |= tx_rings ? FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS : 0; req->num_tx_rings = cpu_to_le16(tx_rings); if (BNXT_NEW_RM(bp)) { enables |= rx_rings ? FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS : 0; enables |= stats ? FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0; if (bp->flags & BNXT_FLAG_CHIP_P5) { enables |= cp_rings ? FUNC_CFG_REQ_ENABLES_NUM_MSIX : 0; enables |= tx_rings + ring_grps ? FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; enables |= rx_rings ? FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; } else { enables |= cp_rings ? FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; enables |= ring_grps ? FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS | FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; } enables |= vnics ? FUNC_CFG_REQ_ENABLES_NUM_VNICS : 0; req->num_rx_rings = cpu_to_le16(rx_rings); if (bp->flags & BNXT_FLAG_CHIP_P5) { req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps); req->num_msix = cpu_to_le16(cp_rings); req->num_rsscos_ctxs = cpu_to_le16(DIV_ROUND_UP(ring_grps, 64)); } else { req->num_cmpl_rings = cpu_to_le16(cp_rings); req->num_hw_ring_grps = cpu_to_le16(ring_grps); req->num_rsscos_ctxs = cpu_to_le16(1); if (!(bp->flags & BNXT_FLAG_NEW_RSS_CAP) && bnxt_rfs_supported(bp)) req->num_rsscos_ctxs = cpu_to_le16(ring_grps + 1); } req->num_stat_ctxs = cpu_to_le16(stats); req->num_vnics = cpu_to_le16(vnics); } req->enables = cpu_to_le32(enables); return req; } static struct hwrm_func_vf_cfg_input * __bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, int ring_grps, int cp_rings, int stats, int vnics) { struct hwrm_func_vf_cfg_input *req; u32 enables = 0; if (hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG)) return NULL; enables |= tx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS : 0; enables |= rx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS | FUNC_VF_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0; enables |= stats ? FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0; if (bp->flags & BNXT_FLAG_CHIP_P5) { enables |= tx_rings + ring_grps ? FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; } else { enables |= cp_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0; enables |= ring_grps ? FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0; } enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0; enables |= FUNC_VF_CFG_REQ_ENABLES_NUM_L2_CTXS; req->num_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX); req->num_tx_rings = cpu_to_le16(tx_rings); req->num_rx_rings = cpu_to_le16(rx_rings); if (bp->flags & BNXT_FLAG_CHIP_P5) { req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps); req->num_rsscos_ctxs = cpu_to_le16(DIV_ROUND_UP(ring_grps, 64)); } else { req->num_cmpl_rings = cpu_to_le16(cp_rings); req->num_hw_ring_grps = cpu_to_le16(ring_grps); req->num_rsscos_ctxs = cpu_to_le16(BNXT_VF_MAX_RSS_CTX); } req->num_stat_ctxs = cpu_to_le16(stats); req->num_vnics = cpu_to_le16(vnics); req->enables = cpu_to_le32(enables); return req; } static int bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, int ring_grps, int cp_rings, int stats, int vnics) { struct hwrm_func_cfg_input *req; int rc; req = __bnxt_hwrm_reserve_pf_rings(bp, tx_rings, rx_rings, ring_grps, cp_rings, stats, vnics); if (!req) return -ENOMEM; if (!req->enables) { hwrm_req_drop(bp, req); return 0; } rc = hwrm_req_send(bp, req); if (rc) return rc; if (bp->hwrm_spec_code < 0x10601) bp->hw_resc.resv_tx_rings = tx_rings; return bnxt_hwrm_get_rings(bp); } static int bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, int ring_grps, int cp_rings, int stats, int vnics) { struct hwrm_func_vf_cfg_input *req; int rc; if (!BNXT_NEW_RM(bp)) { bp->hw_resc.resv_tx_rings = tx_rings; return 0; } req = __bnxt_hwrm_reserve_vf_rings(bp, tx_rings, rx_rings, ring_grps, cp_rings, stats, vnics); if (!req) return -ENOMEM; rc = hwrm_req_send(bp, req); if (rc) return rc; return bnxt_hwrm_get_rings(bp); } static int bnxt_hwrm_reserve_rings(struct bnxt *bp, int tx, int rx, int grp, int cp, int stat, int vnic) { if (BNXT_PF(bp)) return bnxt_hwrm_reserve_pf_rings(bp, tx, rx, grp, cp, stat, vnic); else return bnxt_hwrm_reserve_vf_rings(bp, tx, rx, grp, cp, stat, vnic); } int bnxt_nq_rings_in_use(struct bnxt *bp) { int cp = bp->cp_nr_rings; int ulp_msix, ulp_base; ulp_msix = bnxt_get_ulp_msix_num(bp); if (ulp_msix) { ulp_base = bnxt_get_ulp_msix_base(bp); cp += ulp_msix; if ((ulp_base + ulp_msix) > cp) cp = ulp_base + ulp_msix; } return cp; } static int bnxt_cp_rings_in_use(struct bnxt *bp) { int cp; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) return bnxt_nq_rings_in_use(bp); cp = bp->tx_nr_rings + bp->rx_nr_rings; return cp; } static int bnxt_get_func_stat_ctxs(struct bnxt *bp) { int ulp_stat = bnxt_get_ulp_stat_ctxs(bp); int cp = bp->cp_nr_rings; if (!ulp_stat) return cp; if (bnxt_nq_rings_in_use(bp) > cp + bnxt_get_ulp_msix_num(bp)) return bnxt_get_ulp_msix_base(bp) + ulp_stat; return cp + ulp_stat; } /* Check if a default RSS map needs to be setup. This function is only * used on older firmware that does not require reserving RX rings. */ static void bnxt_check_rss_tbl_no_rmgr(struct bnxt *bp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; /* The RSS map is valid for RX rings set to resv_rx_rings */ if (hw_resc->resv_rx_rings != bp->rx_nr_rings) { hw_resc->resv_rx_rings = bp->rx_nr_rings; if (!netif_is_rxfh_configured(bp->dev)) bnxt_set_dflt_rss_indir_tbl(bp); } } static bool bnxt_need_reserve_rings(struct bnxt *bp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; int cp = bnxt_cp_rings_in_use(bp); int nq = bnxt_nq_rings_in_use(bp); int rx = bp->rx_nr_rings, stat; int vnic = 1, grp = rx; if (hw_resc->resv_tx_rings != bp->tx_nr_rings && bp->hwrm_spec_code >= 0x10601) return true; /* Old firmware does not need RX ring reservations but we still * need to setup a default RSS map when needed. With new firmware * we go through RX ring reservations first and then set up the * RSS map for the successfully reserved RX rings when needed. */ if (!BNXT_NEW_RM(bp)) { bnxt_check_rss_tbl_no_rmgr(bp); return false; } if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5)) vnic = rx + 1; if (bp->flags & BNXT_FLAG_AGG_RINGS) rx <<= 1; stat = bnxt_get_func_stat_ctxs(bp); if (hw_resc->resv_rx_rings != rx || hw_resc->resv_cp_rings != cp || hw_resc->resv_vnics != vnic || hw_resc->resv_stat_ctxs != stat || (hw_resc->resv_hw_ring_grps != grp && !(bp->flags & BNXT_FLAG_CHIP_P5))) return true; if ((bp->flags & BNXT_FLAG_CHIP_P5) && BNXT_PF(bp) && hw_resc->resv_irqs != nq) return true; return false; } static int __bnxt_reserve_rings(struct bnxt *bp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; int cp = bnxt_nq_rings_in_use(bp); int tx = bp->tx_nr_rings; int rx = bp->rx_nr_rings; int grp, rx_rings, rc; int vnic = 1, stat; bool sh = false; if (!bnxt_need_reserve_rings(bp)) return 0; if (bp->flags & BNXT_FLAG_SHARED_RINGS) sh = true; if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5)) vnic = rx + 1; if (bp->flags & BNXT_FLAG_AGG_RINGS) rx <<= 1; grp = bp->rx_nr_rings; stat = bnxt_get_func_stat_ctxs(bp); rc = bnxt_hwrm_reserve_rings(bp, tx, rx, grp, cp, stat, vnic); if (rc) return rc; tx = hw_resc->resv_tx_rings; if (BNXT_NEW_RM(bp)) { rx = hw_resc->resv_rx_rings; cp = hw_resc->resv_irqs; grp = hw_resc->resv_hw_ring_grps; vnic = hw_resc->resv_vnics; stat = hw_resc->resv_stat_ctxs; } rx_rings = rx; if (bp->flags & BNXT_FLAG_AGG_RINGS) { if (rx >= 2) { rx_rings = rx >> 1; } else { if (netif_running(bp->dev)) return -ENOMEM; bp->flags &= ~BNXT_FLAG_AGG_RINGS; bp->flags |= BNXT_FLAG_NO_AGG_RINGS; bp->dev->hw_features &= ~NETIF_F_LRO; bp->dev->features &= ~NETIF_F_LRO; bnxt_set_ring_params(bp); } } rx_rings = min_t(int, rx_rings, grp); cp = min_t(int, cp, bp->cp_nr_rings); if (stat > bnxt_get_ulp_stat_ctxs(bp)) stat -= bnxt_get_ulp_stat_ctxs(bp); cp = min_t(int, cp, stat); rc = bnxt_trim_rings(bp, &rx_rings, &tx, cp, sh); if (bp->flags & BNXT_FLAG_AGG_RINGS) rx = rx_rings << 1; cp = sh ? max_t(int, tx, rx_rings) : tx + rx_rings; bp->tx_nr_rings = tx; /* If we cannot reserve all the RX rings, reset the RSS map only * if absolutely necessary */ if (rx_rings != bp->rx_nr_rings) { netdev_warn(bp->dev, "Able to reserve only %d out of %d requested RX rings\n", rx_rings, bp->rx_nr_rings); if (netif_is_rxfh_configured(bp->dev) && (bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings) != bnxt_get_nr_rss_ctxs(bp, rx_rings) || bnxt_get_max_rss_ring(bp) >= rx_rings)) { netdev_warn(bp->dev, "RSS table entries reverting to default\n"); bp->dev->priv_flags &= ~IFF_RXFH_CONFIGURED; } } bp->rx_nr_rings = rx_rings; bp->cp_nr_rings = cp; if (!tx || !rx || !cp || !grp || !vnic || !stat) return -ENOMEM; if (!netif_is_rxfh_configured(bp->dev)) bnxt_set_dflt_rss_indir_tbl(bp); return rc; } static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings, int ring_grps, int cp_rings, int stats, int vnics) { struct hwrm_func_vf_cfg_input *req; u32 flags; if (!BNXT_NEW_RM(bp)) return 0; req = __bnxt_hwrm_reserve_vf_rings(bp, tx_rings, rx_rings, ring_grps, cp_rings, stats, vnics); flags = FUNC_VF_CFG_REQ_FLAGS_TX_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_RX_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_VNIC_ASSETS_TEST | FUNC_VF_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) flags |= FUNC_VF_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST; req->flags = cpu_to_le32(flags); return hwrm_req_send_silent(bp, req); } static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings, int ring_grps, int cp_rings, int stats, int vnics) { struct hwrm_func_cfg_input *req; u32 flags; req = __bnxt_hwrm_reserve_pf_rings(bp, tx_rings, rx_rings, ring_grps, cp_rings, stats, vnics); flags = FUNC_CFG_REQ_FLAGS_TX_ASSETS_TEST; if (BNXT_NEW_RM(bp)) { flags |= FUNC_CFG_REQ_FLAGS_RX_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_CMPL_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_VNIC_ASSETS_TEST; if (bp->flags & BNXT_FLAG_CHIP_P5) flags |= FUNC_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST | FUNC_CFG_REQ_FLAGS_NQ_ASSETS_TEST; else flags |= FUNC_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST; } req->flags = cpu_to_le32(flags); return hwrm_req_send_silent(bp, req); } static int bnxt_hwrm_check_rings(struct bnxt *bp, int tx_rings, int rx_rings, int ring_grps, int cp_rings, int stats, int vnics) { if (bp->hwrm_spec_code < 0x10801) return 0; if (BNXT_PF(bp)) return bnxt_hwrm_check_pf_rings(bp, tx_rings, rx_rings, ring_grps, cp_rings, stats, vnics); return bnxt_hwrm_check_vf_rings(bp, tx_rings, rx_rings, ring_grps, cp_rings, stats, vnics); } static void bnxt_hwrm_coal_params_qcaps(struct bnxt *bp) { struct bnxt_coal_cap *coal_cap = &bp->coal_cap; struct hwrm_ring_aggint_qcaps_output *resp; struct hwrm_ring_aggint_qcaps_input *req; int rc; coal_cap->cmpl_params = BNXT_LEGACY_COAL_CMPL_PARAMS; coal_cap->num_cmpl_dma_aggr_max = 63; coal_cap->num_cmpl_dma_aggr_during_int_max = 63; coal_cap->cmpl_aggr_dma_tmr_max = 65535; coal_cap->cmpl_aggr_dma_tmr_during_int_max = 65535; coal_cap->int_lat_tmr_min_max = 65535; coal_cap->int_lat_tmr_max_max = 65535; coal_cap->num_cmpl_aggr_int_max = 65535; coal_cap->timer_units = 80; if (bp->hwrm_spec_code < 0x10902) return; if (hwrm_req_init(bp, req, HWRM_RING_AGGINT_QCAPS)) return; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send_silent(bp, req); if (!rc) { coal_cap->cmpl_params = le32_to_cpu(resp->cmpl_params); coal_cap->nq_params = le32_to_cpu(resp->nq_params); coal_cap->num_cmpl_dma_aggr_max = le16_to_cpu(resp->num_cmpl_dma_aggr_max); coal_cap->num_cmpl_dma_aggr_during_int_max = le16_to_cpu(resp->num_cmpl_dma_aggr_during_int_max); coal_cap->cmpl_aggr_dma_tmr_max = le16_to_cpu(resp->cmpl_aggr_dma_tmr_max); coal_cap->cmpl_aggr_dma_tmr_during_int_max = le16_to_cpu(resp->cmpl_aggr_dma_tmr_during_int_max); coal_cap->int_lat_tmr_min_max = le16_to_cpu(resp->int_lat_tmr_min_max); coal_cap->int_lat_tmr_max_max = le16_to_cpu(resp->int_lat_tmr_max_max); coal_cap->num_cmpl_aggr_int_max = le16_to_cpu(resp->num_cmpl_aggr_int_max); coal_cap->timer_units = le16_to_cpu(resp->timer_units); } hwrm_req_drop(bp, req); } static u16 bnxt_usec_to_coal_tmr(struct bnxt *bp, u16 usec) { struct bnxt_coal_cap *coal_cap = &bp->coal_cap; return usec * 1000 / coal_cap->timer_units; } static void bnxt_hwrm_set_coal_params(struct bnxt *bp, struct bnxt_coal *hw_coal, struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req) { struct bnxt_coal_cap *coal_cap = &bp->coal_cap; u16 val, tmr, max, flags = hw_coal->flags; u32 cmpl_params = coal_cap->cmpl_params; max = hw_coal->bufs_per_record * 128; if (hw_coal->budget) max = hw_coal->bufs_per_record * hw_coal->budget; max = min_t(u16, max, coal_cap->num_cmpl_aggr_int_max); val = clamp_t(u16, hw_coal->coal_bufs, 1, max); req->num_cmpl_aggr_int = cpu_to_le16(val); val = min_t(u16, val, coal_cap->num_cmpl_dma_aggr_max); req->num_cmpl_dma_aggr = cpu_to_le16(val); val = clamp_t(u16, hw_coal->coal_bufs_irq, 1, coal_cap->num_cmpl_dma_aggr_during_int_max); req->num_cmpl_dma_aggr_during_int = cpu_to_le16(val); tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks); tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_max_max); req->int_lat_tmr_max = cpu_to_le16(tmr); /* min timer set to 1/2 of interrupt timer */ if (cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_INT_LAT_TMR_MIN) { val = tmr / 2; val = clamp_t(u16, val, 1, coal_cap->int_lat_tmr_min_max); req->int_lat_tmr_min = cpu_to_le16(val); req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE); } /* buf timer set to 1/4 of interrupt timer */ val = clamp_t(u16, tmr / 4, 1, coal_cap->cmpl_aggr_dma_tmr_max); req->cmpl_aggr_dma_tmr = cpu_to_le16(val); if (cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_NUM_CMPL_DMA_AGGR_DURING_INT) { tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks_irq); val = clamp_t(u16, tmr, 1, coal_cap->cmpl_aggr_dma_tmr_during_int_max); req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(val); req->enables |= cpu_to_le16(BNXT_COAL_CMPL_AGGR_TMR_DURING_INT_ENABLE); } if ((cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_RING_IDLE) && hw_coal->idle_thresh && hw_coal->coal_ticks < hw_coal->idle_thresh) flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE; req->flags = cpu_to_le16(flags); req->enables |= cpu_to_le16(BNXT_COAL_CMPL_ENABLES); } static int __bnxt_hwrm_set_coal_nq(struct bnxt *bp, struct bnxt_napi *bnapi, struct bnxt_coal *hw_coal) { struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; struct bnxt_coal_cap *coal_cap = &bp->coal_cap; u32 nq_params = coal_cap->nq_params; u16 tmr; int rc; if (!(nq_params & RING_AGGINT_QCAPS_RESP_NQ_PARAMS_INT_LAT_TMR_MIN)) return 0; rc = hwrm_req_init(bp, req, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); if (rc) return rc; req->ring_id = cpu_to_le16(cpr->cp_ring_struct.fw_ring_id); req->flags = cpu_to_le16(RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_IS_NQ); tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks) / 2; tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_min_max); req->int_lat_tmr_min = cpu_to_le16(tmr); req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE); return hwrm_req_send(bp, req); } int bnxt_hwrm_set_ring_coal(struct bnxt *bp, struct bnxt_napi *bnapi) { struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; struct bnxt_coal coal; int rc; /* Tick values in micro seconds. * 1 coal_buf x bufs_per_record = 1 completion record. */ memcpy(&coal, &bp->rx_coal, sizeof(struct bnxt_coal)); coal.coal_ticks = cpr->rx_ring_coal.coal_ticks; coal.coal_bufs = cpr->rx_ring_coal.coal_bufs; if (!bnapi->rx_ring) return -ENODEV; rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); if (rc) return rc; bnxt_hwrm_set_coal_params(bp, &coal, req_rx); req_rx->ring_id = cpu_to_le16(bnxt_cp_ring_for_rx(bp, bnapi->rx_ring)); return hwrm_req_send(bp, req_rx); } int bnxt_hwrm_set_coal(struct bnxt *bp) { struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx, *req_tx, *req; int i, rc; rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); if (rc) return rc; rc = hwrm_req_init(bp, req_tx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS); if (rc) { hwrm_req_drop(bp, req_rx); return rc; } bnxt_hwrm_set_coal_params(bp, &bp->rx_coal, req_rx); bnxt_hwrm_set_coal_params(bp, &bp->tx_coal, req_tx); hwrm_req_hold(bp, req_rx); hwrm_req_hold(bp, req_tx); for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_coal *hw_coal; u16 ring_id; req = req_rx; if (!bnapi->rx_ring) { ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring); req = req_tx; } else { ring_id = bnxt_cp_ring_for_rx(bp, bnapi->rx_ring); } req->ring_id = cpu_to_le16(ring_id); rc = hwrm_req_send(bp, req); if (rc) break; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) continue; if (bnapi->rx_ring && bnapi->tx_ring) { req = req_tx; ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring); req->ring_id = cpu_to_le16(ring_id); rc = hwrm_req_send(bp, req); if (rc) break; } if (bnapi->rx_ring) hw_coal = &bp->rx_coal; else hw_coal = &bp->tx_coal; __bnxt_hwrm_set_coal_nq(bp, bnapi, hw_coal); } hwrm_req_drop(bp, req_rx); hwrm_req_drop(bp, req_tx); return rc; } static void bnxt_hwrm_stat_ctx_free(struct bnxt *bp) { struct hwrm_stat_ctx_clr_stats_input *req0 = NULL; struct hwrm_stat_ctx_free_input *req; int i; if (!bp->bnapi) return; if (BNXT_CHIP_TYPE_NITRO_A0(bp)) return; if (hwrm_req_init(bp, req, HWRM_STAT_CTX_FREE)) return; if (BNXT_FW_MAJ(bp) <= 20) { if (hwrm_req_init(bp, req0, HWRM_STAT_CTX_CLR_STATS)) { hwrm_req_drop(bp, req); return; } hwrm_req_hold(bp, req0); } hwrm_req_hold(bp, req); for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) { req->stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id); if (req0) { req0->stat_ctx_id = req->stat_ctx_id; hwrm_req_send(bp, req0); } hwrm_req_send(bp, req); cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; } } hwrm_req_drop(bp, req); if (req0) hwrm_req_drop(bp, req0); } static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp) { struct hwrm_stat_ctx_alloc_output *resp; struct hwrm_stat_ctx_alloc_input *req; int rc, i; if (BNXT_CHIP_TYPE_NITRO_A0(bp)) return 0; rc = hwrm_req_init(bp, req, HWRM_STAT_CTX_ALLOC); if (rc) return rc; req->stats_dma_length = cpu_to_le16(bp->hw_ring_stats_size); req->update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000); resp = hwrm_req_hold(bp, req); for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; req->stats_dma_addr = cpu_to_le64(cpr->stats.hw_stats_map); rc = hwrm_req_send(bp, req); if (rc) break; cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id); bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id; } hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_func_qcfg(struct bnxt *bp) { struct hwrm_func_qcfg_output *resp; struct hwrm_func_qcfg_input *req; u32 min_db_offset = 0; u16 flags; int rc; rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG); if (rc) return rc; req->fid = cpu_to_le16(0xffff); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto func_qcfg_exit; #ifdef CONFIG_BNXT_SRIOV if (BNXT_VF(bp)) { struct bnxt_vf_info *vf = &bp->vf; vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK; } else { bp->pf.registered_vfs = le16_to_cpu(resp->registered_vfs); } #endif flags = le16_to_cpu(resp->flags); if (flags & (FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED | FUNC_QCFG_RESP_FLAGS_FW_LLDP_AGENT_ENABLED)) { bp->fw_cap |= BNXT_FW_CAP_LLDP_AGENT; if (flags & FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED) bp->fw_cap |= BNXT_FW_CAP_DCBX_AGENT; } if (BNXT_PF(bp) && (flags & FUNC_QCFG_RESP_FLAGS_MULTI_HOST)) { bp->flags |= BNXT_FLAG_MULTI_HOST; if (bp->fw_cap & BNXT_FW_CAP_PTP_RTC) bp->fw_cap &= ~BNXT_FW_CAP_PTP_RTC; } if (flags & FUNC_QCFG_RESP_FLAGS_RING_MONITOR_ENABLED) bp->fw_cap |= BNXT_FW_CAP_RING_MONITOR; switch (resp->port_partition_type) { case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0: case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5: case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR2_0: bp->port_partition_type = resp->port_partition_type; break; } if (bp->hwrm_spec_code < 0x10707 || resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEB) bp->br_mode = BRIDGE_MODE_VEB; else if (resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEPA) bp->br_mode = BRIDGE_MODE_VEPA; else bp->br_mode = BRIDGE_MODE_UNDEF; bp->max_mtu = le16_to_cpu(resp->max_mtu_configured); if (!bp->max_mtu) bp->max_mtu = BNXT_MAX_MTU; if (bp->db_size) goto func_qcfg_exit; if (bp->flags & BNXT_FLAG_CHIP_P5) { if (BNXT_PF(bp)) min_db_offset = DB_PF_OFFSET_P5; else min_db_offset = DB_VF_OFFSET_P5; } bp->db_size = PAGE_ALIGN(le16_to_cpu(resp->l2_doorbell_bar_size_kb) * 1024); if (!bp->db_size || bp->db_size > pci_resource_len(bp->pdev, 2) || bp->db_size <= min_db_offset) bp->db_size = pci_resource_len(bp->pdev, 2); func_qcfg_exit: hwrm_req_drop(bp, req); return rc; } static void bnxt_init_ctx_initializer(struct bnxt_ctx_mem_info *ctx, struct hwrm_func_backing_store_qcaps_output *resp) { struct bnxt_mem_init *mem_init; u16 init_mask; u8 init_val; u8 *offset; int i; init_val = resp->ctx_kind_initializer; init_mask = le16_to_cpu(resp->ctx_init_mask); offset = &resp->qp_init_offset; mem_init = &ctx->mem_init[BNXT_CTX_MEM_INIT_QP]; for (i = 0; i < BNXT_CTX_MEM_INIT_MAX; i++, mem_init++, offset++) { mem_init->init_val = init_val; mem_init->offset = BNXT_MEM_INVALID_OFFSET; if (!init_mask) continue; if (i == BNXT_CTX_MEM_INIT_STAT) offset = &resp->stat_init_offset; if (init_mask & (1 << i)) mem_init->offset = *offset * 4; else mem_init->init_val = 0; } ctx->mem_init[BNXT_CTX_MEM_INIT_QP].size = ctx->qp_entry_size; ctx->mem_init[BNXT_CTX_MEM_INIT_SRQ].size = ctx->srq_entry_size; ctx->mem_init[BNXT_CTX_MEM_INIT_CQ].size = ctx->cq_entry_size; ctx->mem_init[BNXT_CTX_MEM_INIT_VNIC].size = ctx->vnic_entry_size; ctx->mem_init[BNXT_CTX_MEM_INIT_STAT].size = ctx->stat_entry_size; ctx->mem_init[BNXT_CTX_MEM_INIT_MRAV].size = ctx->mrav_entry_size; } static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp) { struct hwrm_func_backing_store_qcaps_output *resp; struct hwrm_func_backing_store_qcaps_input *req; int rc; if (bp->hwrm_spec_code < 0x10902 || BNXT_VF(bp) || bp->ctx) return 0; rc = hwrm_req_init(bp, req, HWRM_FUNC_BACKING_STORE_QCAPS); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send_silent(bp, req); if (!rc) { struct bnxt_ctx_pg_info *ctx_pg; struct bnxt_ctx_mem_info *ctx; int i, tqm_rings; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) { rc = -ENOMEM; goto ctx_err; } ctx->qp_max_entries = le32_to_cpu(resp->qp_max_entries); ctx->qp_min_qp1_entries = le16_to_cpu(resp->qp_min_qp1_entries); ctx->qp_max_l2_entries = le16_to_cpu(resp->qp_max_l2_entries); ctx->qp_entry_size = le16_to_cpu(resp->qp_entry_size); ctx->srq_max_l2_entries = le16_to_cpu(resp->srq_max_l2_entries); ctx->srq_max_entries = le32_to_cpu(resp->srq_max_entries); ctx->srq_entry_size = le16_to_cpu(resp->srq_entry_size); ctx->cq_max_l2_entries = le16_to_cpu(resp->cq_max_l2_entries); ctx->cq_max_entries = le32_to_cpu(resp->cq_max_entries); ctx->cq_entry_size = le16_to_cpu(resp->cq_entry_size); ctx->vnic_max_vnic_entries = le16_to_cpu(resp->vnic_max_vnic_entries); ctx->vnic_max_ring_table_entries = le16_to_cpu(resp->vnic_max_ring_table_entries); ctx->vnic_entry_size = le16_to_cpu(resp->vnic_entry_size); ctx->stat_max_entries = le32_to_cpu(resp->stat_max_entries); ctx->stat_entry_size = le16_to_cpu(resp->stat_entry_size); ctx->tqm_entry_size = le16_to_cpu(resp->tqm_entry_size); ctx->tqm_min_entries_per_ring = le32_to_cpu(resp->tqm_min_entries_per_ring); ctx->tqm_max_entries_per_ring = le32_to_cpu(resp->tqm_max_entries_per_ring); ctx->tqm_entries_multiple = resp->tqm_entries_multiple; if (!ctx->tqm_entries_multiple) ctx->tqm_entries_multiple = 1; ctx->mrav_max_entries = le32_to_cpu(resp->mrav_max_entries); ctx->mrav_entry_size = le16_to_cpu(resp->mrav_entry_size); ctx->mrav_num_entries_units = le16_to_cpu(resp->mrav_num_entries_units); ctx->tim_entry_size = le16_to_cpu(resp->tim_entry_size); ctx->tim_max_entries = le32_to_cpu(resp->tim_max_entries); bnxt_init_ctx_initializer(ctx, resp); ctx->tqm_fp_rings_count = resp->tqm_fp_rings_count; if (!ctx->tqm_fp_rings_count) ctx->tqm_fp_rings_count = bp->max_q; else if (ctx->tqm_fp_rings_count > BNXT_MAX_TQM_FP_RINGS) ctx->tqm_fp_rings_count = BNXT_MAX_TQM_FP_RINGS; tqm_rings = ctx->tqm_fp_rings_count + BNXT_MAX_TQM_SP_RINGS; ctx_pg = kcalloc(tqm_rings, sizeof(*ctx_pg), GFP_KERNEL); if (!ctx_pg) { kfree(ctx); rc = -ENOMEM; goto ctx_err; } for (i = 0; i < tqm_rings; i++, ctx_pg++) ctx->tqm_mem[i] = ctx_pg; bp->ctx = ctx; } else { rc = 0; } ctx_err: hwrm_req_drop(bp, req); return rc; } static void bnxt_hwrm_set_pg_attr(struct bnxt_ring_mem_info *rmem, u8 *pg_attr, __le64 *pg_dir) { if (!rmem->nr_pages) return; BNXT_SET_CTX_PAGE_ATTR(*pg_attr); if (rmem->depth >= 1) { if (rmem->depth == 2) *pg_attr |= 2; else *pg_attr |= 1; *pg_dir = cpu_to_le64(rmem->pg_tbl_map); } else { *pg_dir = cpu_to_le64(rmem->dma_arr[0]); } } #define FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES \ (FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP | \ FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ | \ FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ | \ FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC | \ FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) static int bnxt_hwrm_func_backing_store_cfg(struct bnxt *bp, u32 enables) { struct hwrm_func_backing_store_cfg_input *req; struct bnxt_ctx_mem_info *ctx = bp->ctx; struct bnxt_ctx_pg_info *ctx_pg; void **__req = (void **)&req; u32 req_len = sizeof(*req); __le32 *num_entries; __le64 *pg_dir; u32 flags = 0; u8 *pg_attr; u32 ena; int rc; int i; if (!ctx) return 0; if (req_len > bp->hwrm_max_ext_req_len) req_len = BNXT_BACKING_STORE_CFG_LEGACY_LEN; rc = __hwrm_req_init(bp, __req, HWRM_FUNC_BACKING_STORE_CFG, req_len); if (rc) return rc; req->enables = cpu_to_le32(enables); if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP) { ctx_pg = &ctx->qp_mem; req->qp_num_entries = cpu_to_le32(ctx_pg->entries); req->qp_num_qp1_entries = cpu_to_le16(ctx->qp_min_qp1_entries); req->qp_num_l2_entries = cpu_to_le16(ctx->qp_max_l2_entries); req->qp_entry_size = cpu_to_le16(ctx->qp_entry_size); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req->qpc_pg_size_qpc_lvl, &req->qpc_page_dir); } if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ) { ctx_pg = &ctx->srq_mem; req->srq_num_entries = cpu_to_le32(ctx_pg->entries); req->srq_num_l2_entries = cpu_to_le16(ctx->srq_max_l2_entries); req->srq_entry_size = cpu_to_le16(ctx->srq_entry_size); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req->srq_pg_size_srq_lvl, &req->srq_page_dir); } if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ) { ctx_pg = &ctx->cq_mem; req->cq_num_entries = cpu_to_le32(ctx_pg->entries); req->cq_num_l2_entries = cpu_to_le16(ctx->cq_max_l2_entries); req->cq_entry_size = cpu_to_le16(ctx->cq_entry_size); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req->cq_pg_size_cq_lvl, &req->cq_page_dir); } if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC) { ctx_pg = &ctx->vnic_mem; req->vnic_num_vnic_entries = cpu_to_le16(ctx->vnic_max_vnic_entries); req->vnic_num_ring_table_entries = cpu_to_le16(ctx->vnic_max_ring_table_entries); req->vnic_entry_size = cpu_to_le16(ctx->vnic_entry_size); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req->vnic_pg_size_vnic_lvl, &req->vnic_page_dir); } if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) { ctx_pg = &ctx->stat_mem; req->stat_num_entries = cpu_to_le32(ctx->stat_max_entries); req->stat_entry_size = cpu_to_le16(ctx->stat_entry_size); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req->stat_pg_size_stat_lvl, &req->stat_page_dir); } if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV) { ctx_pg = &ctx->mrav_mem; req->mrav_num_entries = cpu_to_le32(ctx_pg->entries); if (ctx->mrav_num_entries_units) flags |= FUNC_BACKING_STORE_CFG_REQ_FLAGS_MRAV_RESERVATION_SPLIT; req->mrav_entry_size = cpu_to_le16(ctx->mrav_entry_size); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req->mrav_pg_size_mrav_lvl, &req->mrav_page_dir); } if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM) { ctx_pg = &ctx->tim_mem; req->tim_num_entries = cpu_to_le32(ctx_pg->entries); req->tim_entry_size = cpu_to_le16(ctx->tim_entry_size); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, &req->tim_pg_size_tim_lvl, &req->tim_page_dir); } for (i = 0, num_entries = &req->tqm_sp_num_entries, pg_attr = &req->tqm_sp_pg_size_tqm_sp_lvl, pg_dir = &req->tqm_sp_page_dir, ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP; i < BNXT_MAX_TQM_RINGS; i++, num_entries++, pg_attr++, pg_dir++, ena <<= 1) { if (!(enables & ena)) continue; req->tqm_entry_size = cpu_to_le16(ctx->tqm_entry_size); ctx_pg = ctx->tqm_mem[i]; *num_entries = cpu_to_le32(ctx_pg->entries); bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, pg_attr, pg_dir); } req->flags = cpu_to_le32(flags); return hwrm_req_send(bp, req); } static int bnxt_alloc_ctx_mem_blk(struct bnxt *bp, struct bnxt_ctx_pg_info *ctx_pg) { struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; rmem->page_size = BNXT_PAGE_SIZE; rmem->pg_arr = ctx_pg->ctx_pg_arr; rmem->dma_arr = ctx_pg->ctx_dma_arr; rmem->flags = BNXT_RMEM_VALID_PTE_FLAG; if (rmem->depth >= 1) rmem->flags |= BNXT_RMEM_USE_FULL_PAGE_FLAG; return bnxt_alloc_ring(bp, rmem); } static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, struct bnxt_ctx_pg_info *ctx_pg, u32 mem_size, u8 depth, struct bnxt_mem_init *mem_init) { struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; int rc; if (!mem_size) return -EINVAL; ctx_pg->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); if (ctx_pg->nr_pages > MAX_CTX_TOTAL_PAGES) { ctx_pg->nr_pages = 0; return -EINVAL; } if (ctx_pg->nr_pages > MAX_CTX_PAGES || depth > 1) { int nr_tbls, i; rmem->depth = 2; ctx_pg->ctx_pg_tbl = kcalloc(MAX_CTX_PAGES, sizeof(ctx_pg), GFP_KERNEL); if (!ctx_pg->ctx_pg_tbl) return -ENOMEM; nr_tbls = DIV_ROUND_UP(ctx_pg->nr_pages, MAX_CTX_PAGES); rmem->nr_pages = nr_tbls; rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg); if (rc) return rc; for (i = 0; i < nr_tbls; i++) { struct bnxt_ctx_pg_info *pg_tbl; pg_tbl = kzalloc(sizeof(*pg_tbl), GFP_KERNEL); if (!pg_tbl) return -ENOMEM; ctx_pg->ctx_pg_tbl[i] = pg_tbl; rmem = &pg_tbl->ring_mem; rmem->pg_tbl = ctx_pg->ctx_pg_arr[i]; rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i]; rmem->depth = 1; rmem->nr_pages = MAX_CTX_PAGES; rmem->mem_init = mem_init; if (i == (nr_tbls - 1)) { int rem = ctx_pg->nr_pages % MAX_CTX_PAGES; if (rem) rmem->nr_pages = rem; } rc = bnxt_alloc_ctx_mem_blk(bp, pg_tbl); if (rc) break; } } else { rmem->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); if (rmem->nr_pages > 1 || depth) rmem->depth = 1; rmem->mem_init = mem_init; rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg); } return rc; } static void bnxt_free_ctx_pg_tbls(struct bnxt *bp, struct bnxt_ctx_pg_info *ctx_pg) { struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; if (rmem->depth > 1 || ctx_pg->nr_pages > MAX_CTX_PAGES || ctx_pg->ctx_pg_tbl) { int i, nr_tbls = rmem->nr_pages; for (i = 0; i < nr_tbls; i++) { struct bnxt_ctx_pg_info *pg_tbl; struct bnxt_ring_mem_info *rmem2; pg_tbl = ctx_pg->ctx_pg_tbl[i]; if (!pg_tbl) continue; rmem2 = &pg_tbl->ring_mem; bnxt_free_ring(bp, rmem2); ctx_pg->ctx_pg_arr[i] = NULL; kfree(pg_tbl); ctx_pg->ctx_pg_tbl[i] = NULL; } kfree(ctx_pg->ctx_pg_tbl); ctx_pg->ctx_pg_tbl = NULL; } bnxt_free_ring(bp, rmem); ctx_pg->nr_pages = 0; } void bnxt_free_ctx_mem(struct bnxt *bp) { struct bnxt_ctx_mem_info *ctx = bp->ctx; int i; if (!ctx) return; if (ctx->tqm_mem[0]) { for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) bnxt_free_ctx_pg_tbls(bp, ctx->tqm_mem[i]); kfree(ctx->tqm_mem[0]); ctx->tqm_mem[0] = NULL; } bnxt_free_ctx_pg_tbls(bp, &ctx->tim_mem); bnxt_free_ctx_pg_tbls(bp, &ctx->mrav_mem); bnxt_free_ctx_pg_tbls(bp, &ctx->stat_mem); bnxt_free_ctx_pg_tbls(bp, &ctx->vnic_mem); bnxt_free_ctx_pg_tbls(bp, &ctx->cq_mem); bnxt_free_ctx_pg_tbls(bp, &ctx->srq_mem); bnxt_free_ctx_pg_tbls(bp, &ctx->qp_mem); ctx->flags &= ~BNXT_CTX_FLAG_INITED; } static int bnxt_alloc_ctx_mem(struct bnxt *bp) { struct bnxt_ctx_pg_info *ctx_pg; struct bnxt_ctx_mem_info *ctx; struct bnxt_mem_init *init; u32 mem_size, ena, entries; u32 entries_sp, min; u32 num_mr, num_ah; u32 extra_srqs = 0; u32 extra_qps = 0; u8 pg_lvl = 1; int i, rc; rc = bnxt_hwrm_func_backing_store_qcaps(bp); if (rc) { netdev_err(bp->dev, "Failed querying context mem capability, rc = %d.\n", rc); return rc; } ctx = bp->ctx; if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED)) return 0; if ((bp->flags & BNXT_FLAG_ROCE_CAP) && !is_kdump_kernel()) { pg_lvl = 2; extra_qps = 65536; extra_srqs = 8192; } ctx_pg = &ctx->qp_mem; ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries + extra_qps; if (ctx->qp_entry_size) { mem_size = ctx->qp_entry_size * ctx_pg->entries; init = &ctx->mem_init[BNXT_CTX_MEM_INIT_QP]; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init); if (rc) return rc; } ctx_pg = &ctx->srq_mem; ctx_pg->entries = ctx->srq_max_l2_entries + extra_srqs; if (ctx->srq_entry_size) { mem_size = ctx->srq_entry_size * ctx_pg->entries; init = &ctx->mem_init[BNXT_CTX_MEM_INIT_SRQ]; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init); if (rc) return rc; } ctx_pg = &ctx->cq_mem; ctx_pg->entries = ctx->cq_max_l2_entries + extra_qps * 2; if (ctx->cq_entry_size) { mem_size = ctx->cq_entry_size * ctx_pg->entries; init = &ctx->mem_init[BNXT_CTX_MEM_INIT_CQ]; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init); if (rc) return rc; } ctx_pg = &ctx->vnic_mem; ctx_pg->entries = ctx->vnic_max_vnic_entries + ctx->vnic_max_ring_table_entries; if (ctx->vnic_entry_size) { mem_size = ctx->vnic_entry_size * ctx_pg->entries; init = &ctx->mem_init[BNXT_CTX_MEM_INIT_VNIC]; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, init); if (rc) return rc; } ctx_pg = &ctx->stat_mem; ctx_pg->entries = ctx->stat_max_entries; if (ctx->stat_entry_size) { mem_size = ctx->stat_entry_size * ctx_pg->entries; init = &ctx->mem_init[BNXT_CTX_MEM_INIT_STAT]; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, init); if (rc) return rc; } ena = 0; if (!(bp->flags & BNXT_FLAG_ROCE_CAP)) goto skip_rdma; ctx_pg = &ctx->mrav_mem; /* 128K extra is needed to accommodate static AH context * allocation by f/w. */ num_mr = 1024 * 256; num_ah = 1024 * 128; ctx_pg->entries = num_mr + num_ah; if (ctx->mrav_entry_size) { mem_size = ctx->mrav_entry_size * ctx_pg->entries; init = &ctx->mem_init[BNXT_CTX_MEM_INIT_MRAV]; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2, init); if (rc) return rc; } ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV; if (ctx->mrav_num_entries_units) ctx_pg->entries = ((num_mr / ctx->mrav_num_entries_units) << 16) | (num_ah / ctx->mrav_num_entries_units); ctx_pg = &ctx->tim_mem; ctx_pg->entries = ctx->qp_mem.entries; if (ctx->tim_entry_size) { mem_size = ctx->tim_entry_size * ctx_pg->entries; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, NULL); if (rc) return rc; } ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM; skip_rdma: min = ctx->tqm_min_entries_per_ring; entries_sp = ctx->vnic_max_vnic_entries + ctx->qp_max_l2_entries + 2 * (extra_qps + ctx->qp_min_qp1_entries) + min; entries_sp = roundup(entries_sp, ctx->tqm_entries_multiple); entries = ctx->qp_max_l2_entries + 2 * (extra_qps + ctx->qp_min_qp1_entries); entries = roundup(entries, ctx->tqm_entries_multiple); entries = clamp_t(u32, entries, min, ctx->tqm_max_entries_per_ring); for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) { ctx_pg = ctx->tqm_mem[i]; ctx_pg->entries = i ? entries : entries_sp; if (ctx->tqm_entry_size) { mem_size = ctx->tqm_entry_size * ctx_pg->entries; rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, NULL); if (rc) return rc; } ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i; } ena |= FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES; rc = bnxt_hwrm_func_backing_store_cfg(bp, ena); if (rc) { netdev_err(bp->dev, "Failed configuring context mem, rc = %d.\n", rc); return rc; } ctx->flags |= BNXT_CTX_FLAG_INITED; return 0; } int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp, bool all) { struct hwrm_func_resource_qcaps_output *resp; struct hwrm_func_resource_qcaps_input *req; struct bnxt_hw_resc *hw_resc = &bp->hw_resc; int rc; rc = hwrm_req_init(bp, req, HWRM_FUNC_RESOURCE_QCAPS); if (rc) return rc; req->fid = cpu_to_le16(0xffff); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send_silent(bp, req); if (rc) goto hwrm_func_resc_qcaps_exit; hw_resc->max_tx_sch_inputs = le16_to_cpu(resp->max_tx_scheduler_inputs); if (!all) goto hwrm_func_resc_qcaps_exit; hw_resc->min_rsscos_ctxs = le16_to_cpu(resp->min_rsscos_ctx); hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); hw_resc->min_cp_rings = le16_to_cpu(resp->min_cmpl_rings); hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); hw_resc->min_tx_rings = le16_to_cpu(resp->min_tx_rings); hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings); hw_resc->min_rx_rings = le16_to_cpu(resp->min_rx_rings); hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings); hw_resc->min_hw_ring_grps = le16_to_cpu(resp->min_hw_ring_grps); hw_resc->max_hw_ring_grps = le16_to_cpu(resp->max_hw_ring_grps); hw_resc->min_l2_ctxs = le16_to_cpu(resp->min_l2_ctxs); hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); hw_resc->min_vnics = le16_to_cpu(resp->min_vnics); hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); hw_resc->min_stat_ctxs = le16_to_cpu(resp->min_stat_ctx); hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); if (bp->flags & BNXT_FLAG_CHIP_P5) { u16 max_msix = le16_to_cpu(resp->max_msix); hw_resc->max_nqs = max_msix; hw_resc->max_hw_ring_grps = hw_resc->max_rx_rings; } if (BNXT_PF(bp)) { struct bnxt_pf_info *pf = &bp->pf; pf->vf_resv_strategy = le16_to_cpu(resp->vf_reservation_strategy); if (pf->vf_resv_strategy > BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) pf->vf_resv_strategy = BNXT_VF_RESV_STRATEGY_MAXIMAL; } hwrm_func_resc_qcaps_exit: hwrm_req_drop(bp, req); return rc; } static int __bnxt_hwrm_ptp_qcfg(struct bnxt *bp) { struct hwrm_port_mac_ptp_qcfg_output *resp; struct hwrm_port_mac_ptp_qcfg_input *req; struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; bool phc_cfg; u8 flags; int rc; if (bp->hwrm_spec_code < 0x10801) { rc = -ENODEV; goto no_ptp; } rc = hwrm_req_init(bp, req, HWRM_PORT_MAC_PTP_QCFG); if (rc) goto no_ptp; req->port_id = cpu_to_le16(bp->pf.port_id); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto exit; flags = resp->flags; if (!(flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_HWRM_ACCESS)) { rc = -ENODEV; goto exit; } if (!ptp) { ptp = kzalloc(sizeof(*ptp), GFP_KERNEL); if (!ptp) { rc = -ENOMEM; goto exit; } ptp->bp = bp; bp->ptp_cfg = ptp; } if (flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_PARTIAL_DIRECT_ACCESS_REF_CLOCK) { ptp->refclk_regs[0] = le32_to_cpu(resp->ts_ref_clock_reg_lower); ptp->refclk_regs[1] = le32_to_cpu(resp->ts_ref_clock_reg_upper); } else if (bp->flags & BNXT_FLAG_CHIP_P5) { ptp->refclk_regs[0] = BNXT_TS_REG_TIMESYNC_TS0_LOWER; ptp->refclk_regs[1] = BNXT_TS_REG_TIMESYNC_TS0_UPPER; } else { rc = -ENODEV; goto exit; } phc_cfg = (flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_RTC_CONFIGURED) != 0; rc = bnxt_ptp_init(bp, phc_cfg); if (rc) netdev_warn(bp->dev, "PTP initialization failed.\n"); exit: hwrm_req_drop(bp, req); if (!rc) return 0; no_ptp: bnxt_ptp_clear(bp); kfree(ptp); bp->ptp_cfg = NULL; return rc; } static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) { struct hwrm_func_qcaps_output *resp; struct hwrm_func_qcaps_input *req; struct bnxt_hw_resc *hw_resc = &bp->hw_resc; u32 flags, flags_ext, flags_ext2; int rc; rc = hwrm_req_init(bp, req, HWRM_FUNC_QCAPS); if (rc) return rc; req->fid = cpu_to_le16(0xffff); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto hwrm_func_qcaps_exit; flags = le32_to_cpu(resp->flags); if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V1_SUPPORTED) bp->flags |= BNXT_FLAG_ROCEV1_CAP; if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED) bp->flags |= BNXT_FLAG_ROCEV2_CAP; if (flags & FUNC_QCAPS_RESP_FLAGS_PCIE_STATS_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_PCIE_STATS_SUPPORTED; if (flags & FUNC_QCAPS_RESP_FLAGS_HOT_RESET_CAPABLE) bp->fw_cap |= BNXT_FW_CAP_HOT_RESET; if (flags & FUNC_QCAPS_RESP_FLAGS_EXT_STATS_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_EXT_STATS_SUPPORTED; if (flags & FUNC_QCAPS_RESP_FLAGS_ERROR_RECOVERY_CAPABLE) bp->fw_cap |= BNXT_FW_CAP_ERROR_RECOVERY; if (flags & FUNC_QCAPS_RESP_FLAGS_ERR_RECOVER_RELOAD) bp->fw_cap |= BNXT_FW_CAP_ERR_RECOVER_RELOAD; if (!(flags & FUNC_QCAPS_RESP_FLAGS_VLAN_ACCELERATION_TX_DISABLED)) bp->fw_cap |= BNXT_FW_CAP_VLAN_TX_INSERT; if (flags & FUNC_QCAPS_RESP_FLAGS_DBG_QCAPS_CMD_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_DBG_QCAPS; flags_ext = le32_to_cpu(resp->flags_ext); if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_EXT_HW_STATS_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED; if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_PPS_SUPPORTED)) bp->fw_cap |= BNXT_FW_CAP_PTP_PPS; if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_64BIT_RTC_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_PTP_RTC; if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_HOT_RESET_IF_SUPPORT)) bp->fw_cap |= BNXT_FW_CAP_HOT_RESET_IF; if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_FW_LIVEPATCH_SUPPORTED)) bp->fw_cap |= BNXT_FW_CAP_LIVEPATCH; flags_ext2 = le32_to_cpu(resp->flags_ext2); if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_RX_ALL_PKTS_TIMESTAMPS_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_RX_ALL_PKT_TS; bp->tx_push_thresh = 0; if ((flags & FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED) && BNXT_FW_MAJ(bp) > 217) bp->tx_push_thresh = BNXT_TX_PUSH_THRESH; hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings); hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings); hw_resc->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps); if (!hw_resc->max_hw_ring_grps) hw_resc->max_hw_ring_grps = hw_resc->max_tx_rings; hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); hw_resc->max_vnics = le16_to_cpu(resp->max_vnics); hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); if (BNXT_PF(bp)) { struct bnxt_pf_info *pf = &bp->pf; pf->fw_fid = le16_to_cpu(resp->fid); pf->port_id = le16_to_cpu(resp->port_id); memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN); pf->first_vf_id = le16_to_cpu(resp->first_vf_id); pf->max_vfs = le16_to_cpu(resp->max_vfs); pf->max_encap_records = le32_to_cpu(resp->max_encap_records); pf->max_decap_records = le32_to_cpu(resp->max_decap_records); pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows); pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows); pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows); pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows); bp->flags &= ~BNXT_FLAG_WOL_CAP; if (flags & FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED) bp->flags |= BNXT_FLAG_WOL_CAP; if (flags & FUNC_QCAPS_RESP_FLAGS_PTP_SUPPORTED) { __bnxt_hwrm_ptp_qcfg(bp); } else { bnxt_ptp_clear(bp); kfree(bp->ptp_cfg); bp->ptp_cfg = NULL; } } else { #ifdef CONFIG_BNXT_SRIOV struct bnxt_vf_info *vf = &bp->vf; vf->fw_fid = le16_to_cpu(resp->fid); memcpy(vf->mac_addr, resp->mac_address, ETH_ALEN); #endif } hwrm_func_qcaps_exit: hwrm_req_drop(bp, req); return rc; } static void bnxt_hwrm_dbg_qcaps(struct bnxt *bp) { struct hwrm_dbg_qcaps_output *resp; struct hwrm_dbg_qcaps_input *req; int rc; bp->fw_dbg_cap = 0; if (!(bp->fw_cap & BNXT_FW_CAP_DBG_QCAPS)) return; rc = hwrm_req_init(bp, req, HWRM_DBG_QCAPS); if (rc) return; req->fid = cpu_to_le16(0xffff); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto hwrm_dbg_qcaps_exit; bp->fw_dbg_cap = le32_to_cpu(resp->flags); hwrm_dbg_qcaps_exit: hwrm_req_drop(bp, req); } static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp); int bnxt_hwrm_func_qcaps(struct bnxt *bp) { int rc; rc = __bnxt_hwrm_func_qcaps(bp); if (rc) return rc; bnxt_hwrm_dbg_qcaps(bp); rc = bnxt_hwrm_queue_qportcfg(bp); if (rc) { netdev_err(bp->dev, "hwrm query qportcfg failure rc: %d\n", rc); return rc; } if (bp->hwrm_spec_code >= 0x10803) { rc = bnxt_alloc_ctx_mem(bp); if (rc) return rc; rc = bnxt_hwrm_func_resc_qcaps(bp, true); if (!rc) bp->fw_cap |= BNXT_FW_CAP_NEW_RM; } return 0; } static int bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(struct bnxt *bp) { struct hwrm_cfa_adv_flow_mgnt_qcaps_output *resp; struct hwrm_cfa_adv_flow_mgnt_qcaps_input *req; u32 flags; int rc; if (!(bp->fw_cap & BNXT_FW_CAP_CFA_ADV_FLOW)) return 0; rc = hwrm_req_init(bp, req, HWRM_CFA_ADV_FLOW_MGNT_QCAPS); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto hwrm_cfa_adv_qcaps_exit; flags = le32_to_cpu(resp->flags); if (flags & CFA_ADV_FLOW_MGNT_QCAPS_RESP_FLAGS_RFS_RING_TBL_IDX_V2_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2; hwrm_cfa_adv_qcaps_exit: hwrm_req_drop(bp, req); return rc; } static int __bnxt_alloc_fw_health(struct bnxt *bp) { if (bp->fw_health) return 0; bp->fw_health = kzalloc(sizeof(*bp->fw_health), GFP_KERNEL); if (!bp->fw_health) return -ENOMEM; mutex_init(&bp->fw_health->lock); return 0; } static int bnxt_alloc_fw_health(struct bnxt *bp) { int rc; if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) && !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) return 0; rc = __bnxt_alloc_fw_health(bp); if (rc) { bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET; bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; return rc; } return 0; } static void __bnxt_map_fw_health_reg(struct bnxt *bp, u32 reg) { writel(reg & BNXT_GRC_BASE_MASK, bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + BNXT_FW_HEALTH_WIN_MAP_OFF); } static void bnxt_inv_fw_health_reg(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; u32 reg_type; if (!fw_health) return; reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_HEALTH_REG]); if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) fw_health->status_reliable = false; reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_RESET_CNT_REG]); if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) fw_health->resets_reliable = false; } static void bnxt_try_map_fw_health_reg(struct bnxt *bp) { void __iomem *hs; u32 status_loc; u32 reg_type; u32 sig; if (bp->fw_health) bp->fw_health->status_reliable = false; __bnxt_map_fw_health_reg(bp, HCOMM_STATUS_STRUCT_LOC); hs = bp->bar0 + BNXT_FW_HEALTH_WIN_OFF(HCOMM_STATUS_STRUCT_LOC); sig = readl(hs + offsetof(struct hcomm_status, sig_ver)); if ((sig & HCOMM_STATUS_SIGNATURE_MASK) != HCOMM_STATUS_SIGNATURE_VAL) { if (!bp->chip_num) { __bnxt_map_fw_health_reg(bp, BNXT_GRC_REG_BASE); bp->chip_num = readl(bp->bar0 + BNXT_FW_HEALTH_WIN_BASE + BNXT_GRC_REG_CHIP_NUM); } if (!BNXT_CHIP_P5(bp)) return; status_loc = BNXT_GRC_REG_STATUS_P5 | BNXT_FW_HEALTH_REG_TYPE_BAR0; } else { status_loc = readl(hs + offsetof(struct hcomm_status, fw_status_loc)); } if (__bnxt_alloc_fw_health(bp)) { netdev_warn(bp->dev, "no memory for firmware status checks\n"); return; } bp->fw_health->regs[BNXT_FW_HEALTH_REG] = status_loc; reg_type = BNXT_FW_HEALTH_REG_TYPE(status_loc); if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) { __bnxt_map_fw_health_reg(bp, status_loc); bp->fw_health->mapped_regs[BNXT_FW_HEALTH_REG] = BNXT_FW_HEALTH_WIN_OFF(status_loc); } bp->fw_health->status_reliable = true; } static int bnxt_map_fw_health_regs(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; u32 reg_base = 0xffffffff; int i; bp->fw_health->status_reliable = false; bp->fw_health->resets_reliable = false; /* Only pre-map the monitoring GRC registers using window 3 */ for (i = 0; i < 4; i++) { u32 reg = fw_health->regs[i]; if (BNXT_FW_HEALTH_REG_TYPE(reg) != BNXT_FW_HEALTH_REG_TYPE_GRC) continue; if (reg_base == 0xffffffff) reg_base = reg & BNXT_GRC_BASE_MASK; if ((reg & BNXT_GRC_BASE_MASK) != reg_base) return -ERANGE; fw_health->mapped_regs[i] = BNXT_FW_HEALTH_WIN_OFF(reg); } bp->fw_health->status_reliable = true; bp->fw_health->resets_reliable = true; if (reg_base == 0xffffffff) return 0; __bnxt_map_fw_health_reg(bp, reg_base); return 0; } static void bnxt_remap_fw_health_regs(struct bnxt *bp) { if (!bp->fw_health) return; if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) { bp->fw_health->status_reliable = true; bp->fw_health->resets_reliable = true; } else { bnxt_try_map_fw_health_reg(bp); } } static int bnxt_hwrm_error_recovery_qcfg(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; struct hwrm_error_recovery_qcfg_output *resp; struct hwrm_error_recovery_qcfg_input *req; int rc, i; if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) return 0; rc = hwrm_req_init(bp, req, HWRM_ERROR_RECOVERY_QCFG); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto err_recovery_out; fw_health->flags = le32_to_cpu(resp->flags); if ((fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) && !(bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL)) { rc = -EINVAL; goto err_recovery_out; } fw_health->polling_dsecs = le32_to_cpu(resp->driver_polling_freq); fw_health->master_func_wait_dsecs = le32_to_cpu(resp->master_func_wait_period); fw_health->normal_func_wait_dsecs = le32_to_cpu(resp->normal_func_wait_period); fw_health->post_reset_wait_dsecs = le32_to_cpu(resp->master_func_wait_period_after_reset); fw_health->post_reset_max_wait_dsecs = le32_to_cpu(resp->max_bailout_time_after_reset); fw_health->regs[BNXT_FW_HEALTH_REG] = le32_to_cpu(resp->fw_health_status_reg); fw_health->regs[BNXT_FW_HEARTBEAT_REG] = le32_to_cpu(resp->fw_heartbeat_reg); fw_health->regs[BNXT_FW_RESET_CNT_REG] = le32_to_cpu(resp->fw_reset_cnt_reg); fw_health->regs[BNXT_FW_RESET_INPROG_REG] = le32_to_cpu(resp->reset_inprogress_reg); fw_health->fw_reset_inprog_reg_mask = le32_to_cpu(resp->reset_inprogress_reg_mask); fw_health->fw_reset_seq_cnt = resp->reg_array_cnt; if (fw_health->fw_reset_seq_cnt >= 16) { rc = -EINVAL; goto err_recovery_out; } for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) { fw_health->fw_reset_seq_regs[i] = le32_to_cpu(resp->reset_reg[i]); fw_health->fw_reset_seq_vals[i] = le32_to_cpu(resp->reset_reg_val[i]); fw_health->fw_reset_seq_delay_msec[i] = resp->delay_after_reset[i]; } err_recovery_out: hwrm_req_drop(bp, req); if (!rc) rc = bnxt_map_fw_health_regs(bp); if (rc) bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY; return rc; } static int bnxt_hwrm_func_reset(struct bnxt *bp) { struct hwrm_func_reset_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_FUNC_RESET); if (rc) return rc; req->enables = 0; hwrm_req_timeout(bp, req, HWRM_RESET_TIMEOUT); return hwrm_req_send(bp, req); } static void bnxt_nvm_cfg_ver_get(struct bnxt *bp) { struct hwrm_nvm_get_dev_info_output nvm_info; if (!bnxt_hwrm_nvm_get_dev_info(bp, &nvm_info)) snprintf(bp->nvm_cfg_ver, FW_VER_STR_LEN, "%d.%d.%d", nvm_info.nvm_cfg_ver_maj, nvm_info.nvm_cfg_ver_min, nvm_info.nvm_cfg_ver_upd); } static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp) { struct hwrm_queue_qportcfg_output *resp; struct hwrm_queue_qportcfg_input *req; u8 i, j, *qptr; bool no_rdma; int rc = 0; rc = hwrm_req_init(bp, req, HWRM_QUEUE_QPORTCFG); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto qportcfg_exit; if (!resp->max_configurable_queues) { rc = -EINVAL; goto qportcfg_exit; } bp->max_tc = resp->max_configurable_queues; bp->max_lltc = resp->max_configurable_lossless_queues; if (bp->max_tc > BNXT_MAX_QUEUE) bp->max_tc = BNXT_MAX_QUEUE; no_rdma = !(bp->flags & BNXT_FLAG_ROCE_CAP); qptr = &resp->queue_id0; for (i = 0, j = 0; i < bp->max_tc; i++) { bp->q_info[j].queue_id = *qptr; bp->q_ids[i] = *qptr++; bp->q_info[j].queue_profile = *qptr++; bp->tc_to_qidx[j] = j; if (!BNXT_CNPQ(bp->q_info[j].queue_profile) || (no_rdma && BNXT_PF(bp))) j++; } bp->max_q = bp->max_tc; bp->max_tc = max_t(u8, j, 1); if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG) bp->max_tc = 1; if (bp->max_lltc > bp->max_tc) bp->max_lltc = bp->max_tc; qportcfg_exit: hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_poll(struct bnxt *bp) { struct hwrm_ver_get_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_VER_GET); if (rc) return rc; req->hwrm_intf_maj = HWRM_VERSION_MAJOR; req->hwrm_intf_min = HWRM_VERSION_MINOR; req->hwrm_intf_upd = HWRM_VERSION_UPDATE; hwrm_req_flags(bp, req, BNXT_HWRM_CTX_SILENT | BNXT_HWRM_FULL_WAIT); rc = hwrm_req_send(bp, req); return rc; } static int bnxt_hwrm_ver_get(struct bnxt *bp) { struct hwrm_ver_get_output *resp; struct hwrm_ver_get_input *req; u16 fw_maj, fw_min, fw_bld, fw_rsv; u32 dev_caps_cfg, hwrm_ver; int rc, len; rc = hwrm_req_init(bp, req, HWRM_VER_GET); if (rc) return rc; hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT); bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN; req->hwrm_intf_maj = HWRM_VERSION_MAJOR; req->hwrm_intf_min = HWRM_VERSION_MINOR; req->hwrm_intf_upd = HWRM_VERSION_UPDATE; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto hwrm_ver_get_exit; memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output)); bp->hwrm_spec_code = resp->hwrm_intf_maj_8b << 16 | resp->hwrm_intf_min_8b << 8 | resp->hwrm_intf_upd_8b; if (resp->hwrm_intf_maj_8b < 1) { netdev_warn(bp->dev, "HWRM interface %d.%d.%d is older than 1.0.0.\n", resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b, resp->hwrm_intf_upd_8b); netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n"); } hwrm_ver = HWRM_VERSION_MAJOR << 16 | HWRM_VERSION_MINOR << 8 | HWRM_VERSION_UPDATE; if (bp->hwrm_spec_code > hwrm_ver) snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d", HWRM_VERSION_MAJOR, HWRM_VERSION_MINOR, HWRM_VERSION_UPDATE); else snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d", resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b, resp->hwrm_intf_upd_8b); fw_maj = le16_to_cpu(resp->hwrm_fw_major); if (bp->hwrm_spec_code > 0x10803 && fw_maj) { fw_min = le16_to_cpu(resp->hwrm_fw_minor); fw_bld = le16_to_cpu(resp->hwrm_fw_build); fw_rsv = le16_to_cpu(resp->hwrm_fw_patch); len = FW_VER_STR_LEN; } else { fw_maj = resp->hwrm_fw_maj_8b; fw_min = resp->hwrm_fw_min_8b; fw_bld = resp->hwrm_fw_bld_8b; fw_rsv = resp->hwrm_fw_rsvd_8b; len = BC_HWRM_STR_LEN; } bp->fw_ver_code = BNXT_FW_VER_CODE(fw_maj, fw_min, fw_bld, fw_rsv); snprintf(bp->fw_ver_str, len, "%d.%d.%d.%d", fw_maj, fw_min, fw_bld, fw_rsv); if (strlen(resp->active_pkg_name)) { int fw_ver_len = strlen(bp->fw_ver_str); snprintf(bp->fw_ver_str + fw_ver_len, FW_VER_STR_LEN - fw_ver_len - 1, "/pkg %s", resp->active_pkg_name); bp->fw_cap |= BNXT_FW_CAP_PKG_VER; } bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout); if (!bp->hwrm_cmd_timeout) bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT; bp->hwrm_cmd_max_timeout = le16_to_cpu(resp->max_req_timeout) * 1000; if (!bp->hwrm_cmd_max_timeout) bp->hwrm_cmd_max_timeout = HWRM_CMD_MAX_TIMEOUT; else if (bp->hwrm_cmd_max_timeout > HWRM_CMD_MAX_TIMEOUT) netdev_warn(bp->dev, "Device requests max timeout of %d seconds, may trigger hung task watchdog\n", bp->hwrm_cmd_max_timeout / 1000); if (resp->hwrm_intf_maj_8b >= 1) { bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len); bp->hwrm_max_ext_req_len = le16_to_cpu(resp->max_ext_req_len); } if (bp->hwrm_max_ext_req_len < HWRM_MAX_REQ_LEN) bp->hwrm_max_ext_req_len = HWRM_MAX_REQ_LEN; bp->chip_num = le16_to_cpu(resp->chip_num); bp->chip_rev = resp->chip_rev; if (bp->chip_num == CHIP_NUM_58700 && !resp->chip_rev && !resp->chip_metal) bp->flags |= BNXT_FLAG_CHIP_NITRO_A0; dev_caps_cfg = le32_to_cpu(resp->dev_caps_cfg); if ((dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_SUPPORTED) && (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_REQUIRED)) bp->fw_cap |= BNXT_FW_CAP_SHORT_CMD; if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_KONG_MB_CHNL_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_KONG_MB_CHNL; if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_FLOW_HANDLE_64BIT_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_OVS_64BIT_HANDLE; if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_TRUSTED_VF_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_TRUSTED_VF; if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_CFA_ADV_FLOW_MGNT_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_CFA_ADV_FLOW; hwrm_ver_get_exit: hwrm_req_drop(bp, req); return rc; } int bnxt_hwrm_fw_set_time(struct bnxt *bp) { struct hwrm_fw_set_time_input *req; struct tm tm; time64_t now = ktime_get_real_seconds(); int rc; if ((BNXT_VF(bp) && bp->hwrm_spec_code < 0x10901) || bp->hwrm_spec_code < 0x10400) return -EOPNOTSUPP; time64_to_tm(now, 0, &tm); rc = hwrm_req_init(bp, req, HWRM_FW_SET_TIME); if (rc) return rc; req->year = cpu_to_le16(1900 + tm.tm_year); req->month = 1 + tm.tm_mon; req->day = tm.tm_mday; req->hour = tm.tm_hour; req->minute = tm.tm_min; req->second = tm.tm_sec; return hwrm_req_send(bp, req); } static void bnxt_add_one_ctr(u64 hw, u64 *sw, u64 mask) { u64 sw_tmp; hw &= mask; sw_tmp = (*sw & ~mask) | hw; if (hw < (*sw & mask)) sw_tmp += mask + 1; WRITE_ONCE(*sw, sw_tmp); } static void __bnxt_accumulate_stats(__le64 *hw_stats, u64 *sw_stats, u64 *masks, int count, bool ignore_zero) { int i; for (i = 0; i < count; i++) { u64 hw = le64_to_cpu(READ_ONCE(hw_stats[i])); if (ignore_zero && !hw) continue; if (masks[i] == -1ULL) sw_stats[i] = hw; else bnxt_add_one_ctr(hw, &sw_stats[i], masks[i]); } } static void bnxt_accumulate_stats(struct bnxt_stats_mem *stats) { if (!stats->hw_stats) return; __bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats, stats->hw_masks, stats->len / 8, false); } static void bnxt_accumulate_all_stats(struct bnxt *bp) { struct bnxt_stats_mem *ring0_stats; bool ignore_zero = false; int i; /* Chip bug. Counter intermittently becomes 0. */ if (bp->flags & BNXT_FLAG_CHIP_P5) ignore_zero = true; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr; struct bnxt_stats_mem *stats; cpr = &bnapi->cp_ring; stats = &cpr->stats; if (!i) ring0_stats = stats; __bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats, ring0_stats->hw_masks, ring0_stats->len / 8, ignore_zero); } if (bp->flags & BNXT_FLAG_PORT_STATS) { struct bnxt_stats_mem *stats = &bp->port_stats; __le64 *hw_stats = stats->hw_stats; u64 *sw_stats = stats->sw_stats; u64 *masks = stats->hw_masks; int cnt; cnt = sizeof(struct rx_port_stats) / 8; __bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false); hw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; sw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; masks += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; cnt = sizeof(struct tx_port_stats) / 8; __bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false); } if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) { bnxt_accumulate_stats(&bp->rx_port_stats_ext); bnxt_accumulate_stats(&bp->tx_port_stats_ext); } } static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags) { struct hwrm_port_qstats_input *req; struct bnxt_pf_info *pf = &bp->pf; int rc; if (!(bp->flags & BNXT_FLAG_PORT_STATS)) return 0; if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED)) return -EOPNOTSUPP; rc = hwrm_req_init(bp, req, HWRM_PORT_QSTATS); if (rc) return rc; req->flags = flags; req->port_id = cpu_to_le16(pf->port_id); req->tx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map + BNXT_TX_PORT_STATS_BYTE_OFFSET); req->rx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map); return hwrm_req_send(bp, req); } static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags) { struct hwrm_queue_pri2cos_qcfg_output *resp_qc; struct hwrm_queue_pri2cos_qcfg_input *req_qc; struct hwrm_port_qstats_ext_output *resp_qs; struct hwrm_port_qstats_ext_input *req_qs; struct bnxt_pf_info *pf = &bp->pf; u32 tx_stat_size; int rc; if (!(bp->flags & BNXT_FLAG_PORT_STATS_EXT)) return 0; if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED)) return -EOPNOTSUPP; rc = hwrm_req_init(bp, req_qs, HWRM_PORT_QSTATS_EXT); if (rc) return rc; req_qs->flags = flags; req_qs->port_id = cpu_to_le16(pf->port_id); req_qs->rx_stat_size = cpu_to_le16(sizeof(struct rx_port_stats_ext)); req_qs->rx_stat_host_addr = cpu_to_le64(bp->rx_port_stats_ext.hw_stats_map); tx_stat_size = bp->tx_port_stats_ext.hw_stats ? sizeof(struct tx_port_stats_ext) : 0; req_qs->tx_stat_size = cpu_to_le16(tx_stat_size); req_qs->tx_stat_host_addr = cpu_to_le64(bp->tx_port_stats_ext.hw_stats_map); resp_qs = hwrm_req_hold(bp, req_qs); rc = hwrm_req_send(bp, req_qs); if (!rc) { bp->fw_rx_stats_ext_size = le16_to_cpu(resp_qs->rx_stat_size) / 8; if (BNXT_FW_MAJ(bp) < 220 && bp->fw_rx_stats_ext_size > BNXT_RX_STATS_EXT_NUM_LEGACY) bp->fw_rx_stats_ext_size = BNXT_RX_STATS_EXT_NUM_LEGACY; bp->fw_tx_stats_ext_size = tx_stat_size ? le16_to_cpu(resp_qs->tx_stat_size) / 8 : 0; } else { bp->fw_rx_stats_ext_size = 0; bp->fw_tx_stats_ext_size = 0; } hwrm_req_drop(bp, req_qs); if (flags) return rc; if (bp->fw_tx_stats_ext_size <= offsetof(struct tx_port_stats_ext, pfc_pri0_tx_duration_us) / 8) { bp->pri2cos_valid = 0; return rc; } rc = hwrm_req_init(bp, req_qc, HWRM_QUEUE_PRI2COS_QCFG); if (rc) return rc; req_qc->flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN); resp_qc = hwrm_req_hold(bp, req_qc); rc = hwrm_req_send(bp, req_qc); if (!rc) { u8 *pri2cos; int i, j; pri2cos = &resp_qc->pri0_cos_queue_id; for (i = 0; i < 8; i++) { u8 queue_id = pri2cos[i]; u8 queue_idx; /* Per port queue IDs start from 0, 10, 20, etc */ queue_idx = queue_id % 10; if (queue_idx > BNXT_MAX_QUEUE) { bp->pri2cos_valid = false; hwrm_req_drop(bp, req_qc); return rc; } for (j = 0; j < bp->max_q; j++) { if (bp->q_ids[j] == queue_id) bp->pri2cos_idx[i] = queue_idx; } } bp->pri2cos_valid = true; } hwrm_req_drop(bp, req_qc); return rc; } static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp) { bnxt_hwrm_tunnel_dst_port_free(bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN); bnxt_hwrm_tunnel_dst_port_free(bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE); } static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa) { int rc, i; u32 tpa_flags = 0; if (set_tpa) tpa_flags = bp->flags & BNXT_FLAG_TPA; else if (BNXT_NO_FW_ACCESS(bp)) return 0; for (i = 0; i < bp->nr_vnics; i++) { rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags); if (rc) { netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n", i, rc); return rc; } } return 0; } static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp) { int i; for (i = 0; i < bp->nr_vnics; i++) bnxt_hwrm_vnic_set_rss(bp, i, false); } static void bnxt_clear_vnic(struct bnxt *bp) { if (!bp->vnic_info) return; bnxt_hwrm_clear_vnic_filter(bp); if (!(bp->flags & BNXT_FLAG_CHIP_P5)) { /* clear all RSS setting before free vnic ctx */ bnxt_hwrm_clear_vnic_rss(bp); bnxt_hwrm_vnic_ctx_free(bp); } /* before free the vnic, undo the vnic tpa settings */ if (bp->flags & BNXT_FLAG_TPA) bnxt_set_tpa(bp, false); bnxt_hwrm_vnic_free(bp); if (bp->flags & BNXT_FLAG_CHIP_P5) bnxt_hwrm_vnic_ctx_free(bp); } static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path, bool irq_re_init) { bnxt_clear_vnic(bp); bnxt_hwrm_ring_free(bp, close_path); bnxt_hwrm_ring_grp_free(bp); if (irq_re_init) { bnxt_hwrm_stat_ctx_free(bp); bnxt_hwrm_free_tunnel_ports(bp); } } static int bnxt_hwrm_set_br_mode(struct bnxt *bp, u16 br_mode) { struct hwrm_func_cfg_input *req; u8 evb_mode; int rc; if (br_mode == BRIDGE_MODE_VEB) evb_mode = FUNC_CFG_REQ_EVB_MODE_VEB; else if (br_mode == BRIDGE_MODE_VEPA) evb_mode = FUNC_CFG_REQ_EVB_MODE_VEPA; else return -EINVAL; rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); if (rc) return rc; req->fid = cpu_to_le16(0xffff); req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_EVB_MODE); req->evb_mode = evb_mode; return hwrm_req_send(bp, req); } static int bnxt_hwrm_set_cache_line_size(struct bnxt *bp, int size) { struct hwrm_func_cfg_input *req; int rc; if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10803) return 0; rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG); if (rc) return rc; req->fid = cpu_to_le16(0xffff); req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_CACHE_LINESIZE); req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_64; if (size == 128) req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_128; return hwrm_req_send(bp, req); } static int __bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id) { struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; int rc; if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) goto skip_rss_ctx; /* allocate context for vnic */ rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 0); if (rc) { netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", vnic_id, rc); goto vnic_setup_err; } bp->rsscos_nr_ctxs++; if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 1); if (rc) { netdev_err(bp->dev, "hwrm vnic %d cos ctx alloc failure rc: %x\n", vnic_id, rc); goto vnic_setup_err; } bp->rsscos_nr_ctxs++; } skip_rss_ctx: /* configure default vnic, ring grp */ rc = bnxt_hwrm_vnic_cfg(bp, vnic_id); if (rc) { netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n", vnic_id, rc); goto vnic_setup_err; } /* Enable RSS hashing on vnic */ rc = bnxt_hwrm_vnic_set_rss(bp, vnic_id, true); if (rc) { netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n", vnic_id, rc); goto vnic_setup_err; } if (bp->flags & BNXT_FLAG_AGG_RINGS) { rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id); if (rc) { netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n", vnic_id, rc); } } vnic_setup_err: return rc; } static int __bnxt_setup_vnic_p5(struct bnxt *bp, u16 vnic_id) { int rc, i, nr_ctxs; nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings); for (i = 0; i < nr_ctxs; i++) { rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, i); if (rc) { netdev_err(bp->dev, "hwrm vnic %d ctx %d alloc failure rc: %x\n", vnic_id, i, rc); break; } bp->rsscos_nr_ctxs++; } if (i < nr_ctxs) return -ENOMEM; rc = bnxt_hwrm_vnic_set_rss_p5(bp, vnic_id, true); if (rc) { netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %d\n", vnic_id, rc); return rc; } rc = bnxt_hwrm_vnic_cfg(bp, vnic_id); if (rc) { netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n", vnic_id, rc); return rc; } if (bp->flags & BNXT_FLAG_AGG_RINGS) { rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id); if (rc) { netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n", vnic_id, rc); } } return rc; } static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id) { if (bp->flags & BNXT_FLAG_CHIP_P5) return __bnxt_setup_vnic_p5(bp, vnic_id); else return __bnxt_setup_vnic(bp, vnic_id); } static int bnxt_alloc_rfs_vnics(struct bnxt *bp) { #ifdef CONFIG_RFS_ACCEL int i, rc = 0; if (bp->flags & BNXT_FLAG_CHIP_P5) return 0; for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_vnic_info *vnic; u16 vnic_id = i + 1; u16 ring_id = i; if (vnic_id >= bp->nr_vnics) break; vnic = &bp->vnic_info[vnic_id]; vnic->flags |= BNXT_VNIC_RFS_FLAG; if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) vnic->flags |= BNXT_VNIC_RFS_NEW_RSS_FLAG; rc = bnxt_hwrm_vnic_alloc(bp, vnic_id, ring_id, 1); if (rc) { netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", vnic_id, rc); break; } rc = bnxt_setup_vnic(bp, vnic_id); if (rc) break; } return rc; #else return 0; #endif } /* Allow PF, trusted VFs and VFs with default VLAN to be in promiscuous mode */ static bool bnxt_promisc_ok(struct bnxt *bp) { #ifdef CONFIG_BNXT_SRIOV if (BNXT_VF(bp) && !bp->vf.vlan && !bnxt_is_trusted_vf(bp, &bp->vf)) return false; #endif return true; } static int bnxt_setup_nitroa0_vnic(struct bnxt *bp) { unsigned int rc = 0; rc = bnxt_hwrm_vnic_alloc(bp, 1, bp->rx_nr_rings - 1, 1); if (rc) { netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", rc); return rc; } rc = bnxt_hwrm_vnic_cfg(bp, 1); if (rc) { netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", rc); return rc; } return rc; } static int bnxt_cfg_rx_mode(struct bnxt *); static bool bnxt_mc_list_updated(struct bnxt *, u32 *); static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init) { struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; int rc = 0; unsigned int rx_nr_rings = bp->rx_nr_rings; if (irq_re_init) { rc = bnxt_hwrm_stat_ctx_alloc(bp); if (rc) { netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n", rc); goto err_out; } } rc = bnxt_hwrm_ring_alloc(bp); if (rc) { netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc); goto err_out; } rc = bnxt_hwrm_ring_grp_alloc(bp); if (rc) { netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc); goto err_out; } if (BNXT_CHIP_TYPE_NITRO_A0(bp)) rx_nr_rings--; /* default vnic 0 */ rc = bnxt_hwrm_vnic_alloc(bp, 0, 0, rx_nr_rings); if (rc) { netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc); goto err_out; } rc = bnxt_setup_vnic(bp, 0); if (rc) goto err_out; if (bp->fw_cap & BNXT_FW_CAP_RSS_HASH_TYPE_DELTA) bnxt_hwrm_update_rss_hash_cfg(bp); if (bp->flags & BNXT_FLAG_RFS) { rc = bnxt_alloc_rfs_vnics(bp); if (rc) goto err_out; } if (bp->flags & BNXT_FLAG_TPA) { rc = bnxt_set_tpa(bp, true); if (rc) goto err_out; } if (BNXT_VF(bp)) bnxt_update_vf_mac(bp); /* Filter for default vnic 0 */ rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr); if (rc) { if (BNXT_VF(bp) && rc == -ENODEV) netdev_err(bp->dev, "Cannot configure L2 filter while PF is unavailable\n"); else netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); goto err_out; } vnic->uc_filter_count = 1; vnic->rx_mask = 0; if (test_bit(BNXT_STATE_HALF_OPEN, &bp->state)) goto skip_rx_mask; if (bp->dev->flags & IFF_BROADCAST) vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST; if (bp->dev->flags & IFF_PROMISC) vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; if (bp->dev->flags & IFF_ALLMULTI) { vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; vnic->mc_list_count = 0; } else if (bp->dev->flags & IFF_MULTICAST) { u32 mask = 0; bnxt_mc_list_updated(bp, &mask); vnic->rx_mask |= mask; } rc = bnxt_cfg_rx_mode(bp); if (rc) goto err_out; skip_rx_mask: rc = bnxt_hwrm_set_coal(bp); if (rc) netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n", rc); if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { rc = bnxt_setup_nitroa0_vnic(bp); if (rc) netdev_err(bp->dev, "Special vnic setup failure for NS2 A0 rc: %x\n", rc); } if (BNXT_VF(bp)) { bnxt_hwrm_func_qcfg(bp); netdev_update_features(bp->dev); } return 0; err_out: bnxt_hwrm_resource_free(bp, 0, true); return rc; } static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init) { bnxt_hwrm_resource_free(bp, 1, irq_re_init); return 0; } static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init) { bnxt_init_cp_rings(bp); bnxt_init_rx_rings(bp); bnxt_init_tx_rings(bp); bnxt_init_ring_grps(bp, irq_re_init); bnxt_init_vnics(bp); return bnxt_init_chip(bp, irq_re_init); } static int bnxt_set_real_num_queues(struct bnxt *bp) { int rc; struct net_device *dev = bp->dev; rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings - bp->tx_nr_rings_xdp); if (rc) return rc; rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings); if (rc) return rc; #ifdef CONFIG_RFS_ACCEL if (bp->flags & BNXT_FLAG_RFS) dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings); #endif return rc; } static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, bool shared) { int _rx = *rx, _tx = *tx; if (shared) { *rx = min_t(int, _rx, max); *tx = min_t(int, _tx, max); } else { if (max < 2) return -ENOMEM; while (_rx + _tx > max) { if (_rx > _tx && _rx > 1) _rx--; else if (_tx > 1) _tx--; } *rx = _rx; *tx = _tx; } return 0; } static void bnxt_setup_msix(struct bnxt *bp) { const int len = sizeof(bp->irq_tbl[0].name); struct net_device *dev = bp->dev; int tcs, i; tcs = netdev_get_num_tc(dev); if (tcs) { int i, off, count; for (i = 0; i < tcs; i++) { count = bp->tx_nr_rings_per_tc; off = i * count; netdev_set_tc_queue(dev, i, count, off); } } for (i = 0; i < bp->cp_nr_rings; i++) { int map_idx = bnxt_cp_num_to_irq_num(bp, i); char *attr; if (bp->flags & BNXT_FLAG_SHARED_RINGS) attr = "TxRx"; else if (i < bp->rx_nr_rings) attr = "rx"; else attr = "tx"; snprintf(bp->irq_tbl[map_idx].name, len, "%s-%s-%d", dev->name, attr, i); bp->irq_tbl[map_idx].handler = bnxt_msix; } } static void bnxt_setup_inta(struct bnxt *bp) { const int len = sizeof(bp->irq_tbl[0].name); if (netdev_get_num_tc(bp->dev)) netdev_reset_tc(bp->dev); snprintf(bp->irq_tbl[0].name, len, "%s-%s-%d", bp->dev->name, "TxRx", 0); bp->irq_tbl[0].handler = bnxt_inta; } static int bnxt_init_int_mode(struct bnxt *bp); static int bnxt_setup_int_mode(struct bnxt *bp) { int rc; if (!bp->irq_tbl) { rc = bnxt_init_int_mode(bp); if (rc || !bp->irq_tbl) return rc ?: -ENODEV; } if (bp->flags & BNXT_FLAG_USING_MSIX) bnxt_setup_msix(bp); else bnxt_setup_inta(bp); rc = bnxt_set_real_num_queues(bp); return rc; } #ifdef CONFIG_RFS_ACCEL static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp) { return bp->hw_resc.max_rsscos_ctxs; } static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp) { return bp->hw_resc.max_vnics; } #endif unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp) { return bp->hw_resc.max_stat_ctxs; } unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp) { return bp->hw_resc.max_cp_rings; } static unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp) { unsigned int cp = bp->hw_resc.max_cp_rings; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) cp -= bnxt_get_ulp_msix_num(bp); return cp; } static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; if (bp->flags & BNXT_FLAG_CHIP_P5) return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_nqs); return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_cp_rings); } static void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs) { bp->hw_resc.max_irqs = max_irqs; } unsigned int bnxt_get_avail_cp_rings_for_en(struct bnxt *bp) { unsigned int cp; cp = bnxt_get_max_func_cp_rings_for_en(bp); if (bp->flags & BNXT_FLAG_CHIP_P5) return cp - bp->rx_nr_rings - bp->tx_nr_rings; else return cp - bp->cp_nr_rings; } unsigned int bnxt_get_avail_stat_ctxs_for_en(struct bnxt *bp) { return bnxt_get_max_func_stat_ctxs(bp) - bnxt_get_func_stat_ctxs(bp); } int bnxt_get_avail_msix(struct bnxt *bp, int num) { int max_cp = bnxt_get_max_func_cp_rings(bp); int max_irq = bnxt_get_max_func_irqs(bp); int total_req = bp->cp_nr_rings + num; int max_idx, avail_msix; max_idx = bp->total_irqs; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) max_idx = min_t(int, bp->total_irqs, max_cp); avail_msix = max_idx - bp->cp_nr_rings; if (!BNXT_NEW_RM(bp) || avail_msix >= num) return avail_msix; if (max_irq < total_req) { num = max_irq - bp->cp_nr_rings; if (num <= 0) return 0; } return num; } static int bnxt_get_num_msix(struct bnxt *bp) { if (!BNXT_NEW_RM(bp)) return bnxt_get_max_func_irqs(bp); return bnxt_nq_rings_in_use(bp); } static int bnxt_init_msix(struct bnxt *bp) { int i, total_vecs, max, rc = 0, min = 1, ulp_msix; struct msix_entry *msix_ent; total_vecs = bnxt_get_num_msix(bp); max = bnxt_get_max_func_irqs(bp); if (total_vecs > max) total_vecs = max; if (!total_vecs) return 0; msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL); if (!msix_ent) return -ENOMEM; for (i = 0; i < total_vecs; i++) { msix_ent[i].entry = i; msix_ent[i].vector = 0; } if (!(bp->flags & BNXT_FLAG_SHARED_RINGS)) min = 2; total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs); ulp_msix = bnxt_get_ulp_msix_num(bp); if (total_vecs < 0 || total_vecs < ulp_msix) { rc = -ENODEV; goto msix_setup_exit; } bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL); if (bp->irq_tbl) { for (i = 0; i < total_vecs; i++) bp->irq_tbl[i].vector = msix_ent[i].vector; bp->total_irqs = total_vecs; /* Trim rings based upon num of vectors allocated */ rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings, total_vecs - ulp_msix, min == 1); if (rc) goto msix_setup_exit; bp->cp_nr_rings = (min == 1) ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) : bp->tx_nr_rings + bp->rx_nr_rings; } else { rc = -ENOMEM; goto msix_setup_exit; } bp->flags |= BNXT_FLAG_USING_MSIX; kfree(msix_ent); return 0; msix_setup_exit: netdev_err(bp->dev, "bnxt_init_msix err: %x\n", rc); kfree(bp->irq_tbl); bp->irq_tbl = NULL; pci_disable_msix(bp->pdev); kfree(msix_ent); return rc; } static int bnxt_init_inta(struct bnxt *bp) { bp->irq_tbl = kzalloc(sizeof(struct bnxt_irq), GFP_KERNEL); if (!bp->irq_tbl) return -ENOMEM; bp->total_irqs = 1; bp->rx_nr_rings = 1; bp->tx_nr_rings = 1; bp->cp_nr_rings = 1; bp->flags |= BNXT_FLAG_SHARED_RINGS; bp->irq_tbl[0].vector = bp->pdev->irq; return 0; } static int bnxt_init_int_mode(struct bnxt *bp) { int rc = -ENODEV; if (bp->flags & BNXT_FLAG_MSIX_CAP) rc = bnxt_init_msix(bp); if (!(bp->flags & BNXT_FLAG_USING_MSIX) && BNXT_PF(bp)) { /* fallback to INTA */ rc = bnxt_init_inta(bp); } return rc; } static void bnxt_clear_int_mode(struct bnxt *bp) { if (bp->flags & BNXT_FLAG_USING_MSIX) pci_disable_msix(bp->pdev); kfree(bp->irq_tbl); bp->irq_tbl = NULL; bp->flags &= ~BNXT_FLAG_USING_MSIX; } int bnxt_reserve_rings(struct bnxt *bp, bool irq_re_init) { int tcs = netdev_get_num_tc(bp->dev); bool irq_cleared = false; int rc; if (!bnxt_need_reserve_rings(bp)) return 0; if (irq_re_init && BNXT_NEW_RM(bp) && bnxt_get_num_msix(bp) != bp->total_irqs) { bnxt_ulp_irq_stop(bp); bnxt_clear_int_mode(bp); irq_cleared = true; } rc = __bnxt_reserve_rings(bp); if (irq_cleared) { if (!rc) rc = bnxt_init_int_mode(bp); bnxt_ulp_irq_restart(bp, rc); } if (rc) { netdev_err(bp->dev, "ring reservation/IRQ init failure rc: %d\n", rc); return rc; } if (tcs && (bp->tx_nr_rings_per_tc * tcs != bp->tx_nr_rings - bp->tx_nr_rings_xdp)) { netdev_err(bp->dev, "tx ring reservation failure\n"); netdev_reset_tc(bp->dev); if (bp->tx_nr_rings_xdp) bp->tx_nr_rings_per_tc = bp->tx_nr_rings_xdp; else bp->tx_nr_rings_per_tc = bp->tx_nr_rings; return -ENOMEM; } return 0; } static void bnxt_free_irq(struct bnxt *bp) { struct bnxt_irq *irq; int i; #ifdef CONFIG_RFS_ACCEL free_irq_cpu_rmap(bp->dev->rx_cpu_rmap); bp->dev->rx_cpu_rmap = NULL; #endif if (!bp->irq_tbl || !bp->bnapi) return; for (i = 0; i < bp->cp_nr_rings; i++) { int map_idx = bnxt_cp_num_to_irq_num(bp, i); irq = &bp->irq_tbl[map_idx]; if (irq->requested) { if (irq->have_cpumask) { irq_set_affinity_hint(irq->vector, NULL); free_cpumask_var(irq->cpu_mask); irq->have_cpumask = 0; } free_irq(irq->vector, bp->bnapi[i]); } irq->requested = 0; } } static int bnxt_request_irq(struct bnxt *bp) { int i, j, rc = 0; unsigned long flags = 0; #ifdef CONFIG_RFS_ACCEL struct cpu_rmap *rmap; #endif rc = bnxt_setup_int_mode(bp); if (rc) { netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n", rc); return rc; } #ifdef CONFIG_RFS_ACCEL rmap = bp->dev->rx_cpu_rmap; #endif if (!(bp->flags & BNXT_FLAG_USING_MSIX)) flags = IRQF_SHARED; for (i = 0, j = 0; i < bp->cp_nr_rings; i++) { int map_idx = bnxt_cp_num_to_irq_num(bp, i); struct bnxt_irq *irq = &bp->irq_tbl[map_idx]; #ifdef CONFIG_RFS_ACCEL if (rmap && bp->bnapi[i]->rx_ring) { rc = irq_cpu_rmap_add(rmap, irq->vector); if (rc) netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n", j); j++; } #endif rc = request_irq(irq->vector, irq->handler, flags, irq->name, bp->bnapi[i]); if (rc) break; irq->requested = 1; if (zalloc_cpumask_var(&irq->cpu_mask, GFP_KERNEL)) { int numa_node = dev_to_node(&bp->pdev->dev); irq->have_cpumask = 1; cpumask_set_cpu(cpumask_local_spread(i, numa_node), irq->cpu_mask); rc = irq_set_affinity_hint(irq->vector, irq->cpu_mask); if (rc) { netdev_warn(bp->dev, "Set affinity failed, IRQ = %d\n", irq->vector); break; } } } return rc; } static void bnxt_del_napi(struct bnxt *bp) { int i; if (!bp->bnapi) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; __netif_napi_del(&bnapi->napi); } /* We called __netif_napi_del(), we need * to respect an RCU grace period before freeing napi structures. */ synchronize_net(); } static void bnxt_init_napi(struct bnxt *bp) { int i; unsigned int cp_nr_rings = bp->cp_nr_rings; struct bnxt_napi *bnapi; if (bp->flags & BNXT_FLAG_USING_MSIX) { int (*poll_fn)(struct napi_struct *, int) = bnxt_poll; if (bp->flags & BNXT_FLAG_CHIP_P5) poll_fn = bnxt_poll_p5; else if (BNXT_CHIP_TYPE_NITRO_A0(bp)) cp_nr_rings--; for (i = 0; i < cp_nr_rings; i++) { bnapi = bp->bnapi[i]; netif_napi_add(bp->dev, &bnapi->napi, poll_fn); } if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { bnapi = bp->bnapi[cp_nr_rings]; netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll_nitroa0); } } else { bnapi = bp->bnapi[0]; netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll); } } static void bnxt_disable_napi(struct bnxt *bp) { int i; if (!bp->bnapi || test_and_set_bit(BNXT_STATE_NAPI_DISABLED, &bp->state)) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; napi_disable(&bp->bnapi[i]->napi); if (bp->bnapi[i]->rx_ring) cancel_work_sync(&cpr->dim.work); } } static void bnxt_enable_napi(struct bnxt *bp) { int i; clear_bit(BNXT_STATE_NAPI_DISABLED, &bp->state); for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr; cpr = &bnapi->cp_ring; if (bnapi->in_reset) cpr->sw_stats.rx.rx_resets++; bnapi->in_reset = false; if (bnapi->rx_ring) { INIT_WORK(&cpr->dim.work, bnxt_dim_work); cpr->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; } napi_enable(&bnapi->napi); } } void bnxt_tx_disable(struct bnxt *bp) { int i; struct bnxt_tx_ring_info *txr; if (bp->tx_ring) { for (i = 0; i < bp->tx_nr_rings; i++) { txr = &bp->tx_ring[i]; WRITE_ONCE(txr->dev_state, BNXT_DEV_STATE_CLOSING); } } /* Make sure napi polls see @dev_state change */ synchronize_net(); /* Drop carrier first to prevent TX timeout */ netif_carrier_off(bp->dev); /* Stop all TX queues */ netif_tx_disable(bp->dev); } void bnxt_tx_enable(struct bnxt *bp) { int i; struct bnxt_tx_ring_info *txr; for (i = 0; i < bp->tx_nr_rings; i++) { txr = &bp->tx_ring[i]; WRITE_ONCE(txr->dev_state, 0); } /* Make sure napi polls see @dev_state change */ synchronize_net(); netif_tx_wake_all_queues(bp->dev); if (BNXT_LINK_IS_UP(bp)) netif_carrier_on(bp->dev); } static char *bnxt_report_fec(struct bnxt_link_info *link_info) { u8 active_fec = link_info->active_fec_sig_mode & PORT_PHY_QCFG_RESP_ACTIVE_FEC_MASK; switch (active_fec) { default: case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_NONE_ACTIVE: return "None"; case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE74_ACTIVE: return "Clause 74 BaseR"; case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE91_ACTIVE: return "Clause 91 RS(528,514)"; case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_1XN_ACTIVE: return "Clause 91 RS544_1XN"; case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_IEEE_ACTIVE: return "Clause 91 RS(544,514)"; case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_1XN_ACTIVE: return "Clause 91 RS272_1XN"; case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE: return "Clause 91 RS(272,257)"; } } void bnxt_report_link(struct bnxt *bp) { if (BNXT_LINK_IS_UP(bp)) { const char *signal = ""; const char *flow_ctrl; const char *duplex; u32 speed; u16 fec; netif_carrier_on(bp->dev); speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed); if (speed == SPEED_UNKNOWN) { netdev_info(bp->dev, "NIC Link is Up, speed unknown\n"); return; } if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL) duplex = "full"; else duplex = "half"; if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH) flow_ctrl = "ON - receive & transmit"; else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX) flow_ctrl = "ON - transmit"; else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX) flow_ctrl = "ON - receive"; else flow_ctrl = "none"; if (bp->link_info.phy_qcfg_resp.option_flags & PORT_PHY_QCFG_RESP_OPTION_FLAGS_SIGNAL_MODE_KNOWN) { u8 sig_mode = bp->link_info.active_fec_sig_mode & PORT_PHY_QCFG_RESP_SIGNAL_MODE_MASK; switch (sig_mode) { case PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ: signal = "(NRZ) "; break; case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4: signal = "(PAM4) "; break; default: break; } } netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s%s duplex, Flow control: %s\n", speed, signal, duplex, flow_ctrl); if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP) netdev_info(bp->dev, "EEE is %s\n", bp->eee.eee_active ? "active" : "not active"); fec = bp->link_info.fec_cfg; if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED)) netdev_info(bp->dev, "FEC autoneg %s encoding: %s\n", (fec & BNXT_FEC_AUTONEG) ? "on" : "off", bnxt_report_fec(&bp->link_info)); } else { netif_carrier_off(bp->dev); netdev_err(bp->dev, "NIC Link is Down\n"); } } static bool bnxt_phy_qcaps_no_speed(struct hwrm_port_phy_qcaps_output *resp) { if (!resp->supported_speeds_auto_mode && !resp->supported_speeds_force_mode && !resp->supported_pam4_speeds_auto_mode && !resp->supported_pam4_speeds_force_mode) return true; return false; } static int bnxt_hwrm_phy_qcaps(struct bnxt *bp) { struct bnxt_link_info *link_info = &bp->link_info; struct hwrm_port_phy_qcaps_output *resp; struct hwrm_port_phy_qcaps_input *req; int rc = 0; if (bp->hwrm_spec_code < 0x10201) return 0; rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCAPS); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) goto hwrm_phy_qcaps_exit; bp->phy_flags = resp->flags | (le16_to_cpu(resp->flags2) << 8); if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_EEE_SUPPORTED) { struct ethtool_eee *eee = &bp->eee; u16 fw_speeds = le16_to_cpu(resp->supported_speeds_eee_mode); eee->supported = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); bp->lpi_tmr_lo = le32_to_cpu(resp->tx_lpi_timer_low) & PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_LOW_MASK; bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) & PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK; } if (bp->hwrm_spec_code >= 0x10a01) { if (bnxt_phy_qcaps_no_speed(resp)) { link_info->phy_state = BNXT_PHY_STATE_DISABLED; netdev_warn(bp->dev, "Ethernet link disabled\n"); } else if (link_info->phy_state == BNXT_PHY_STATE_DISABLED) { link_info->phy_state = BNXT_PHY_STATE_ENABLED; netdev_info(bp->dev, "Ethernet link enabled\n"); /* Phy re-enabled, reprobe the speeds */ link_info->support_auto_speeds = 0; link_info->support_pam4_auto_speeds = 0; } } if (resp->supported_speeds_auto_mode) link_info->support_auto_speeds = le16_to_cpu(resp->supported_speeds_auto_mode); if (resp->supported_pam4_speeds_auto_mode) link_info->support_pam4_auto_speeds = le16_to_cpu(resp->supported_pam4_speeds_auto_mode); bp->port_count = resp->port_cnt; hwrm_phy_qcaps_exit: hwrm_req_drop(bp, req); return rc; } static bool bnxt_support_dropped(u16 advertising, u16 supported) { u16 diff = advertising ^ supported; return ((supported | diff) != supported); } int bnxt_update_link(struct bnxt *bp, bool chng_link_state) { struct bnxt_link_info *link_info = &bp->link_info; struct hwrm_port_phy_qcfg_output *resp; struct hwrm_port_phy_qcfg_input *req; u8 link_state = link_info->link_state; bool support_changed = false; int rc; rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCFG); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) { hwrm_req_drop(bp, req); if (BNXT_VF(bp) && rc == -ENODEV) { netdev_warn(bp->dev, "Cannot obtain link state while PF unavailable.\n"); rc = 0; } return rc; } memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp)); link_info->phy_link_status = resp->link; link_info->duplex = resp->duplex_cfg; if (bp->hwrm_spec_code >= 0x10800) link_info->duplex = resp->duplex_state; link_info->pause = resp->pause; link_info->auto_mode = resp->auto_mode; link_info->auto_pause_setting = resp->auto_pause; link_info->lp_pause = resp->link_partner_adv_pause; link_info->force_pause_setting = resp->force_pause; link_info->duplex_setting = resp->duplex_cfg; if (link_info->phy_link_status == BNXT_LINK_LINK) link_info->link_speed = le16_to_cpu(resp->link_speed); else link_info->link_speed = 0; link_info->force_link_speed = le16_to_cpu(resp->force_link_speed); link_info->force_pam4_link_speed = le16_to_cpu(resp->force_pam4_link_speed); link_info->support_speeds = le16_to_cpu(resp->support_speeds); link_info->support_pam4_speeds = le16_to_cpu(resp->support_pam4_speeds); link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask); link_info->auto_pam4_link_speeds = le16_to_cpu(resp->auto_pam4_link_speed_mask); link_info->lp_auto_link_speeds = le16_to_cpu(resp->link_partner_adv_speeds); link_info->lp_auto_pam4_link_speeds = resp->link_partner_pam4_adv_speeds; link_info->preemphasis = le32_to_cpu(resp->preemphasis); link_info->phy_ver[0] = resp->phy_maj; link_info->phy_ver[1] = resp->phy_min; link_info->phy_ver[2] = resp->phy_bld; link_info->media_type = resp->media_type; link_info->phy_type = resp->phy_type; link_info->transceiver = resp->xcvr_pkg_type; link_info->phy_addr = resp->eee_config_phy_addr & PORT_PHY_QCFG_RESP_PHY_ADDR_MASK; link_info->module_status = resp->module_status; if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP) { struct ethtool_eee *eee = &bp->eee; u16 fw_speeds; eee->eee_active = 0; if (resp->eee_config_phy_addr & PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ACTIVE) { eee->eee_active = 1; fw_speeds = le16_to_cpu( resp->link_partner_adv_eee_link_speed_mask); eee->lp_advertised = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); } /* Pull initial EEE config */ if (!chng_link_state) { if (resp->eee_config_phy_addr & PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ENABLED) eee->eee_enabled = 1; fw_speeds = le16_to_cpu(resp->adv_eee_link_speed_mask); eee->advertised = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); if (resp->eee_config_phy_addr & PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_TX_LPI) { __le32 tmr; eee->tx_lpi_enabled = 1; tmr = resp->xcvr_identifier_type_tx_lpi_timer; eee->tx_lpi_timer = le32_to_cpu(tmr) & PORT_PHY_QCFG_RESP_TX_LPI_TIMER_MASK; } } } link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED; if (bp->hwrm_spec_code >= 0x10504) { link_info->fec_cfg = le16_to_cpu(resp->fec_cfg); link_info->active_fec_sig_mode = resp->active_fec_signal_mode; } /* TODO: need to add more logic to report VF link */ if (chng_link_state) { if (link_info->phy_link_status == BNXT_LINK_LINK) link_info->link_state = BNXT_LINK_STATE_UP; else link_info->link_state = BNXT_LINK_STATE_DOWN; if (link_state != link_info->link_state) bnxt_report_link(bp); } else { /* always link down if not require to update link state */ link_info->link_state = BNXT_LINK_STATE_DOWN; } hwrm_req_drop(bp, req); if (!BNXT_PHY_CFG_ABLE(bp)) return 0; /* Check if any advertised speeds are no longer supported. The caller * holds the link_lock mutex, so we can modify link_info settings. */ if (bnxt_support_dropped(link_info->advertising, link_info->support_auto_speeds)) { link_info->advertising = link_info->support_auto_speeds; support_changed = true; } if (bnxt_support_dropped(link_info->advertising_pam4, link_info->support_pam4_auto_speeds)) { link_info->advertising_pam4 = link_info->support_pam4_auto_speeds; support_changed = true; } if (support_changed && (link_info->autoneg & BNXT_AUTONEG_SPEED)) bnxt_hwrm_set_link_setting(bp, true, false); return 0; } static void bnxt_get_port_module_status(struct bnxt *bp) { struct bnxt_link_info *link_info = &bp->link_info; struct hwrm_port_phy_qcfg_output *resp = &link_info->phy_qcfg_resp; u8 module_status; if (bnxt_update_link(bp, true)) return; module_status = link_info->module_status; switch (module_status) { case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX: case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN: case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG: netdev_warn(bp->dev, "Unqualified SFP+ module detected on port %d\n", bp->pf.port_id); if (bp->hwrm_spec_code >= 0x10201) { netdev_warn(bp->dev, "Module part number %s\n", resp->phy_vendor_partnumber); } if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX) netdev_warn(bp->dev, "TX is disabled\n"); if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN) netdev_warn(bp->dev, "SFP+ module is shutdown\n"); } } static void bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) { if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) { if (bp->hwrm_spec_code >= 0x10201) req->auto_pause = PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE; if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX; if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_TX; req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); } else { if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX; if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX; req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE); if (bp->hwrm_spec_code >= 0x10201) { req->auto_pause = req->force_pause; req->enables |= cpu_to_le32( PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); } } } static void bnxt_hwrm_set_link_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) { if (bp->link_info.autoneg & BNXT_AUTONEG_SPEED) { req->auto_mode |= PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK; if (bp->link_info.advertising) { req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK); req->auto_link_speed_mask = cpu_to_le16(bp->link_info.advertising); } if (bp->link_info.advertising_pam4) { req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAM4_LINK_SPEED_MASK); req->auto_link_pam4_speed_mask = cpu_to_le16(bp->link_info.advertising_pam4); } req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE); req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG); } else { req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE); if (bp->link_info.req_signal_mode == BNXT_SIG_MODE_PAM4) { req->force_pam4_link_speed = cpu_to_le16(bp->link_info.req_link_speed); req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED); } else { req->force_link_speed = cpu_to_le16(bp->link_info.req_link_speed); } } /* tell chimp that the setting takes effect immediately */ req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY); } int bnxt_hwrm_set_pause(struct bnxt *bp) { struct hwrm_port_phy_cfg_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); if (rc) return rc; bnxt_hwrm_set_pause_common(bp, req); if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) || bp->link_info.force_link_chng) bnxt_hwrm_set_link_common(bp, req); rc = hwrm_req_send(bp, req); if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) { /* since changing of pause setting doesn't trigger any link * change event, the driver needs to update the current pause * result upon successfully return of the phy_cfg command */ bp->link_info.pause = bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl; bp->link_info.auto_pause_setting = 0; if (!bp->link_info.force_link_chng) bnxt_report_link(bp); } bp->link_info.force_link_chng = false; return rc; } static void bnxt_hwrm_set_eee(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) { struct ethtool_eee *eee = &bp->eee; if (eee->eee_enabled) { u16 eee_speeds; u32 flags = PORT_PHY_CFG_REQ_FLAGS_EEE_ENABLE; if (eee->tx_lpi_enabled) flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_ENABLE; else flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_DISABLE; req->flags |= cpu_to_le32(flags); eee_speeds = bnxt_get_fw_auto_link_speeds(eee->advertised); req->eee_link_speed_mask = cpu_to_le16(eee_speeds); req->tx_lpi_timer = cpu_to_le32(eee->tx_lpi_timer); } else { req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_EEE_DISABLE); } } int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause, bool set_eee) { struct hwrm_port_phy_cfg_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); if (rc) return rc; if (set_pause) bnxt_hwrm_set_pause_common(bp, req); bnxt_hwrm_set_link_common(bp, req); if (set_eee) bnxt_hwrm_set_eee(bp, req); return hwrm_req_send(bp, req); } static int bnxt_hwrm_shutdown_link(struct bnxt *bp) { struct hwrm_port_phy_cfg_input *req; int rc; if (!BNXT_SINGLE_PF(bp)) return 0; if (pci_num_vf(bp->pdev) && !(bp->phy_flags & BNXT_PHY_FL_FW_MANAGED_LKDN)) return 0; rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG); if (rc) return rc; req->flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN); rc = hwrm_req_send(bp, req); if (!rc) { mutex_lock(&bp->link_lock); /* Device is not obliged link down in certain scenarios, even * when forced. Setting the state unknown is consistent with * driver startup and will force link state to be reported * during subsequent open based on PORT_PHY_QCFG. */ bp->link_info.link_state = BNXT_LINK_STATE_UNKNOWN; mutex_unlock(&bp->link_lock); } return rc; } static int bnxt_fw_reset_via_optee(struct bnxt *bp) { #ifdef CONFIG_TEE_BNXT_FW int rc = tee_bnxt_fw_load(); if (rc) netdev_err(bp->dev, "Failed FW reset via OP-TEE, rc=%d\n", rc); return rc; #else netdev_err(bp->dev, "OP-TEE not supported\n"); return -ENODEV; #endif } static int bnxt_try_recover_fw(struct bnxt *bp) { if (bp->fw_health && bp->fw_health->status_reliable) { int retry = 0, rc; u32 sts; do { sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); rc = bnxt_hwrm_poll(bp); if (!BNXT_FW_IS_BOOTING(sts) && !BNXT_FW_IS_RECOVERING(sts)) break; retry++; } while (rc == -EBUSY && retry < BNXT_FW_RETRY); if (!BNXT_FW_IS_HEALTHY(sts)) { netdev_err(bp->dev, "Firmware not responding, status: 0x%x\n", sts); rc = -ENODEV; } if (sts & FW_STATUS_REG_CRASHED_NO_MASTER) { netdev_warn(bp->dev, "Firmware recover via OP-TEE requested\n"); return bnxt_fw_reset_via_optee(bp); } return rc; } return -ENODEV; } static void bnxt_clear_reservations(struct bnxt *bp, bool fw_reset) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; if (!BNXT_NEW_RM(bp)) return; /* no resource reservations required */ hw_resc->resv_cp_rings = 0; hw_resc->resv_stat_ctxs = 0; hw_resc->resv_irqs = 0; hw_resc->resv_tx_rings = 0; hw_resc->resv_rx_rings = 0; hw_resc->resv_hw_ring_grps = 0; hw_resc->resv_vnics = 0; if (!fw_reset) { bp->tx_nr_rings = 0; bp->rx_nr_rings = 0; } } int bnxt_cancel_reservations(struct bnxt *bp, bool fw_reset) { int rc; if (!BNXT_NEW_RM(bp)) return 0; /* no resource reservations required */ rc = bnxt_hwrm_func_resc_qcaps(bp, true); if (rc) netdev_err(bp->dev, "resc_qcaps failed\n"); bnxt_clear_reservations(bp, fw_reset); return rc; } static int bnxt_hwrm_if_change(struct bnxt *bp, bool up) { struct hwrm_func_drv_if_change_output *resp; struct hwrm_func_drv_if_change_input *req; bool fw_reset = !bp->irq_tbl; bool resc_reinit = false; int rc, retry = 0; u32 flags = 0; if (!(bp->fw_cap & BNXT_FW_CAP_IF_CHANGE)) return 0; rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_IF_CHANGE); if (rc) return rc; if (up) req->flags = cpu_to_le32(FUNC_DRV_IF_CHANGE_REQ_FLAGS_UP); resp = hwrm_req_hold(bp, req); hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT); while (retry < BNXT_FW_IF_RETRY) { rc = hwrm_req_send(bp, req); if (rc != -EAGAIN) break; msleep(50); retry++; } if (rc == -EAGAIN) { hwrm_req_drop(bp, req); return rc; } else if (!rc) { flags = le32_to_cpu(resp->flags); } else if (up) { rc = bnxt_try_recover_fw(bp); fw_reset = true; } hwrm_req_drop(bp, req); if (rc) return rc; if (!up) { bnxt_inv_fw_health_reg(bp); return 0; } if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_RESC_CHANGE) resc_reinit = true; if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE || test_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) fw_reset = true; else bnxt_remap_fw_health_regs(bp); if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) && !fw_reset) { netdev_err(bp->dev, "RESET_DONE not set during FW reset.\n"); set_bit(BNXT_STATE_ABORT_ERR, &bp->state); return -ENODEV; } if (resc_reinit || fw_reset) { if (fw_reset) { set_bit(BNXT_STATE_FW_RESET_DET, &bp->state); if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) bnxt_ulp_stop(bp); bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; bnxt_dcb_free(bp); rc = bnxt_fw_init_one(bp); if (rc) { clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state); set_bit(BNXT_STATE_ABORT_ERR, &bp->state); return rc; } bnxt_clear_int_mode(bp); rc = bnxt_init_int_mode(bp); if (rc) { clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state); netdev_err(bp->dev, "init int mode failed\n"); return rc; } } rc = bnxt_cancel_reservations(bp, fw_reset); } return rc; } static int bnxt_hwrm_port_led_qcaps(struct bnxt *bp) { struct hwrm_port_led_qcaps_output *resp; struct hwrm_port_led_qcaps_input *req; struct bnxt_pf_info *pf = &bp->pf; int rc; bp->num_leds = 0; if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601) return 0; rc = hwrm_req_init(bp, req, HWRM_PORT_LED_QCAPS); if (rc) return rc; req->port_id = cpu_to_le16(pf->port_id); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (rc) { hwrm_req_drop(bp, req); return rc; } if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) { int i; bp->num_leds = resp->num_leds; memcpy(bp->leds, &resp->led0_id, sizeof(bp->leds[0]) * bp->num_leds); for (i = 0; i < bp->num_leds; i++) { struct bnxt_led_info *led = &bp->leds[i]; __le16 caps = led->led_state_caps; if (!led->led_group_id || !BNXT_LED_ALT_BLINK_CAP(caps)) { bp->num_leds = 0; break; } } } hwrm_req_drop(bp, req); return 0; } int bnxt_hwrm_alloc_wol_fltr(struct bnxt *bp) { struct hwrm_wol_filter_alloc_output *resp; struct hwrm_wol_filter_alloc_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_ALLOC); if (rc) return rc; req->port_id = cpu_to_le16(bp->pf.port_id); req->wol_type = WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT; req->enables = cpu_to_le32(WOL_FILTER_ALLOC_REQ_ENABLES_MAC_ADDRESS); memcpy(req->mac_address, bp->dev->dev_addr, ETH_ALEN); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) bp->wol_filter_id = resp->wol_filter_id; hwrm_req_drop(bp, req); return rc; } int bnxt_hwrm_free_wol_fltr(struct bnxt *bp) { struct hwrm_wol_filter_free_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_FREE); if (rc) return rc; req->port_id = cpu_to_le16(bp->pf.port_id); req->enables = cpu_to_le32(WOL_FILTER_FREE_REQ_ENABLES_WOL_FILTER_ID); req->wol_filter_id = bp->wol_filter_id; return hwrm_req_send(bp, req); } static u16 bnxt_hwrm_get_wol_fltrs(struct bnxt *bp, u16 handle) { struct hwrm_wol_filter_qcfg_output *resp; struct hwrm_wol_filter_qcfg_input *req; u16 next_handle = 0; int rc; rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_QCFG); if (rc) return rc; req->port_id = cpu_to_le16(bp->pf.port_id); req->handle = cpu_to_le16(handle); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) { next_handle = le16_to_cpu(resp->next_handle); if (next_handle != 0) { if (resp->wol_type == WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT) { bp->wol = 1; bp->wol_filter_id = resp->wol_filter_id; } } } hwrm_req_drop(bp, req); return next_handle; } static void bnxt_get_wol_settings(struct bnxt *bp) { u16 handle = 0; bp->wol = 0; if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_WOL_CAP)) return; do { handle = bnxt_hwrm_get_wol_fltrs(bp, handle); } while (handle && handle != 0xffff); } #ifdef CONFIG_BNXT_HWMON static ssize_t bnxt_show_temp(struct device *dev, struct device_attribute *devattr, char *buf) { struct hwrm_temp_monitor_query_output *resp; struct hwrm_temp_monitor_query_input *req; struct bnxt *bp = dev_get_drvdata(dev); u32 len = 0; int rc; rc = hwrm_req_init(bp, req, HWRM_TEMP_MONITOR_QUERY); if (rc) return rc; resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) len = sprintf(buf, "%u\n", resp->temp * 1000); /* display millidegree */ hwrm_req_drop(bp, req); if (rc) return rc; return len; } static SENSOR_DEVICE_ATTR(temp1_input, 0444, bnxt_show_temp, NULL, 0); static struct attribute *bnxt_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, NULL }; ATTRIBUTE_GROUPS(bnxt); static void bnxt_hwmon_close(struct bnxt *bp) { if (bp->hwmon_dev) { hwmon_device_unregister(bp->hwmon_dev); bp->hwmon_dev = NULL; } } static void bnxt_hwmon_open(struct bnxt *bp) { struct hwrm_temp_monitor_query_input *req; struct pci_dev *pdev = bp->pdev; int rc; rc = hwrm_req_init(bp, req, HWRM_TEMP_MONITOR_QUERY); if (!rc) rc = hwrm_req_send_silent(bp, req); if (rc == -EACCES || rc == -EOPNOTSUPP) { bnxt_hwmon_close(bp); return; } if (bp->hwmon_dev) return; bp->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev, DRV_MODULE_NAME, bp, bnxt_groups); if (IS_ERR(bp->hwmon_dev)) { bp->hwmon_dev = NULL; dev_warn(&pdev->dev, "Cannot register hwmon device\n"); } } #else static void bnxt_hwmon_close(struct bnxt *bp) { } static void bnxt_hwmon_open(struct bnxt *bp) { } #endif static bool bnxt_eee_config_ok(struct bnxt *bp) { struct ethtool_eee *eee = &bp->eee; struct bnxt_link_info *link_info = &bp->link_info; if (!(bp->phy_flags & BNXT_PHY_FL_EEE_CAP)) return true; if (eee->eee_enabled) { u32 advertising = _bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0); if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { eee->eee_enabled = 0; return false; } if (eee->advertised & ~advertising) { eee->advertised = advertising & eee->supported; return false; } } return true; } static int bnxt_update_phy_setting(struct bnxt *bp) { int rc; bool update_link = false; bool update_pause = false; bool update_eee = false; struct bnxt_link_info *link_info = &bp->link_info; rc = bnxt_update_link(bp, true); if (rc) { netdev_err(bp->dev, "failed to update link (rc: %x)\n", rc); return rc; } if (!BNXT_SINGLE_PF(bp)) return 0; if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) != link_info->req_flow_ctrl) update_pause = true; if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && link_info->force_pause_setting != link_info->req_flow_ctrl) update_pause = true; if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { if (BNXT_AUTO_MODE(link_info->auto_mode)) update_link = true; if (link_info->req_signal_mode == BNXT_SIG_MODE_NRZ && link_info->req_link_speed != link_info->force_link_speed) update_link = true; else if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4 && link_info->req_link_speed != link_info->force_pam4_link_speed) update_link = true; if (link_info->req_duplex != link_info->duplex_setting) update_link = true; } else { if (link_info->auto_mode == BNXT_LINK_AUTO_NONE) update_link = true; if (link_info->advertising != link_info->auto_link_speeds || link_info->advertising_pam4 != link_info->auto_pam4_link_speeds) update_link = true; } /* The last close may have shutdown the link, so need to call * PHY_CFG to bring it back up. */ if (!BNXT_LINK_IS_UP(bp)) update_link = true; if (!bnxt_eee_config_ok(bp)) update_eee = true; if (update_link) rc = bnxt_hwrm_set_link_setting(bp, update_pause, update_eee); else if (update_pause) rc = bnxt_hwrm_set_pause(bp); if (rc) { netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n", rc); return rc; } return rc; } /* Common routine to pre-map certain register block to different GRC window. * A PF has 16 4K windows and a VF has 4 4K windows. However, only 15 windows * in PF and 3 windows in VF that can be customized to map in different * register blocks. */ static void bnxt_preset_reg_win(struct bnxt *bp) { if (BNXT_PF(bp)) { /* CAG registers map to GRC window #4 */ writel(BNXT_CAG_REG_BASE, bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 12); } } static int bnxt_init_dflt_ring_mode(struct bnxt *bp); static int bnxt_reinit_after_abort(struct bnxt *bp) { int rc; if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) return -EBUSY; if (bp->dev->reg_state == NETREG_UNREGISTERED) return -ENODEV; rc = bnxt_fw_init_one(bp); if (!rc) { bnxt_clear_int_mode(bp); rc = bnxt_init_int_mode(bp); if (!rc) { clear_bit(BNXT_STATE_ABORT_ERR, &bp->state); set_bit(BNXT_STATE_FW_RESET_DET, &bp->state); } } return rc; } static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) { int rc = 0; bnxt_preset_reg_win(bp); netif_carrier_off(bp->dev); if (irq_re_init) { /* Reserve rings now if none were reserved at driver probe. */ rc = bnxt_init_dflt_ring_mode(bp); if (rc) { netdev_err(bp->dev, "Failed to reserve default rings at open\n"); return rc; } } rc = bnxt_reserve_rings(bp, irq_re_init); if (rc) return rc; if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_USING_MSIX)) { /* disable RFS if falling back to INTA */ bp->dev->hw_features &= ~NETIF_F_NTUPLE; bp->flags &= ~BNXT_FLAG_RFS; } rc = bnxt_alloc_mem(bp, irq_re_init); if (rc) { netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); goto open_err_free_mem; } if (irq_re_init) { bnxt_init_napi(bp); rc = bnxt_request_irq(bp); if (rc) { netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc); goto open_err_irq; } } rc = bnxt_init_nic(bp, irq_re_init); if (rc) { netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); goto open_err_irq; } bnxt_enable_napi(bp); bnxt_debug_dev_init(bp); if (link_re_init) { mutex_lock(&bp->link_lock); rc = bnxt_update_phy_setting(bp); mutex_unlock(&bp->link_lock); if (rc) { netdev_warn(bp->dev, "failed to update phy settings\n"); if (BNXT_SINGLE_PF(bp)) { bp->link_info.phy_retry = true; bp->link_info.phy_retry_expires = jiffies + 5 * HZ; } } } if (irq_re_init) udp_tunnel_nic_reset_ntf(bp->dev); if (bp->tx_nr_rings_xdp < num_possible_cpus()) { if (!static_key_enabled(&bnxt_xdp_locking_key)) static_branch_enable(&bnxt_xdp_locking_key); } else if (static_key_enabled(&bnxt_xdp_locking_key)) { static_branch_disable(&bnxt_xdp_locking_key); } set_bit(BNXT_STATE_OPEN, &bp->state); bnxt_enable_int(bp); /* Enable TX queues */ bnxt_tx_enable(bp); mod_timer(&bp->timer, jiffies + bp->current_interval); /* Poll link status and check for SFP+ module status */ mutex_lock(&bp->link_lock); bnxt_get_port_module_status(bp); mutex_unlock(&bp->link_lock); /* VF-reps may need to be re-opened after the PF is re-opened */ if (BNXT_PF(bp)) bnxt_vf_reps_open(bp); bnxt_ptp_init_rtc(bp, true); bnxt_ptp_cfg_tstamp_filters(bp); return 0; open_err_irq: bnxt_del_napi(bp); open_err_free_mem: bnxt_free_skbs(bp); bnxt_free_irq(bp); bnxt_free_mem(bp, true); return rc; } /* rtnl_lock held */ int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) { int rc = 0; if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) rc = -EIO; if (!rc) rc = __bnxt_open_nic(bp, irq_re_init, link_re_init); if (rc) { netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc); dev_close(bp->dev); } return rc; } /* rtnl_lock held, open the NIC half way by allocating all resources, but * NAPI, IRQ, and TX are not enabled. This is mainly used for offline * self tests. */ int bnxt_half_open_nic(struct bnxt *bp) { int rc = 0; if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { netdev_err(bp->dev, "A previous firmware reset has not completed, aborting half open\n"); rc = -ENODEV; goto half_open_err; } rc = bnxt_alloc_mem(bp, true); if (rc) { netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); goto half_open_err; } set_bit(BNXT_STATE_HALF_OPEN, &bp->state); rc = bnxt_init_nic(bp, true); if (rc) { clear_bit(BNXT_STATE_HALF_OPEN, &bp->state); netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); goto half_open_err; } return 0; half_open_err: bnxt_free_skbs(bp); bnxt_free_mem(bp, true); dev_close(bp->dev); return rc; } /* rtnl_lock held, this call can only be made after a previous successful * call to bnxt_half_open_nic(). */ void bnxt_half_close_nic(struct bnxt *bp) { bnxt_hwrm_resource_free(bp, false, true); bnxt_free_skbs(bp); bnxt_free_mem(bp, true); clear_bit(BNXT_STATE_HALF_OPEN, &bp->state); } void bnxt_reenable_sriov(struct bnxt *bp) { if (BNXT_PF(bp)) { struct bnxt_pf_info *pf = &bp->pf; int n = pf->active_vfs; if (n) bnxt_cfg_hw_sriov(bp, &n, true); } } static int bnxt_open(struct net_device *dev) { struct bnxt *bp = netdev_priv(dev); int rc; if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { rc = bnxt_reinit_after_abort(bp); if (rc) { if (rc == -EBUSY) netdev_err(bp->dev, "A previous firmware reset has not completed, aborting\n"); else netdev_err(bp->dev, "Failed to reinitialize after aborted firmware reset\n"); return -ENODEV; } } rc = bnxt_hwrm_if_change(bp, true); if (rc) return rc; rc = __bnxt_open_nic(bp, true, true); if (rc) { bnxt_hwrm_if_change(bp, false); } else { if (test_and_clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) { if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { bnxt_ulp_start(bp, 0); bnxt_reenable_sriov(bp); } } bnxt_hwmon_open(bp); } return rc; } static bool bnxt_drv_busy(struct bnxt *bp) { return (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state) || test_bit(BNXT_STATE_READ_STATS, &bp->state)); } static void bnxt_get_ring_stats(struct bnxt *bp, struct rtnl_link_stats64 *stats); static void __bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) { /* Close the VF-reps before closing PF */ if (BNXT_PF(bp)) bnxt_vf_reps_close(bp); /* Change device state to avoid TX queue wake up's */ bnxt_tx_disable(bp); clear_bit(BNXT_STATE_OPEN, &bp->state); smp_mb__after_atomic(); while (bnxt_drv_busy(bp)) msleep(20); /* Flush rings and disable interrupts */ bnxt_shutdown_nic(bp, irq_re_init); /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */ bnxt_debug_dev_exit(bp); bnxt_disable_napi(bp); del_timer_sync(&bp->timer); bnxt_free_skbs(bp); /* Save ring stats before shutdown */ if (bp->bnapi && irq_re_init) bnxt_get_ring_stats(bp, &bp->net_stats_prev); if (irq_re_init) { bnxt_free_irq(bp); bnxt_del_napi(bp); } bnxt_free_mem(bp, irq_re_init); } int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) { int rc = 0; if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { /* If we get here, it means firmware reset is in progress * while we are trying to close. We can safely proceed with * the close because we are holding rtnl_lock(). Some firmware * messages may fail as we proceed to close. We set the * ABORT_ERR flag here so that the FW reset thread will later * abort when it gets the rtnl_lock() and sees the flag. */ netdev_warn(bp->dev, "FW reset in progress during close, FW reset will be aborted\n"); set_bit(BNXT_STATE_ABORT_ERR, &bp->state); } #ifdef CONFIG_BNXT_SRIOV if (bp->sriov_cfg) { rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait, !bp->sriov_cfg, BNXT_SRIOV_CFG_WAIT_TMO); if (rc) netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete!\n"); } #endif __bnxt_close_nic(bp, irq_re_init, link_re_init); return rc; } static int bnxt_close(struct net_device *dev) { struct bnxt *bp = netdev_priv(dev); bnxt_hwmon_close(bp); bnxt_close_nic(bp, true, true); bnxt_hwrm_shutdown_link(bp); bnxt_hwrm_if_change(bp, false); return 0; } static int bnxt_hwrm_port_phy_read(struct bnxt *bp, u16 phy_addr, u16 reg, u16 *val) { struct hwrm_port_phy_mdio_read_output *resp; struct hwrm_port_phy_mdio_read_input *req; int rc; if (bp->hwrm_spec_code < 0x10a00) return -EOPNOTSUPP; rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_READ); if (rc) return rc; req->port_id = cpu_to_le16(bp->pf.port_id); req->phy_addr = phy_addr; req->reg_addr = cpu_to_le16(reg & 0x1f); if (mdio_phy_id_is_c45(phy_addr)) { req->cl45_mdio = 1; req->phy_addr = mdio_phy_id_prtad(phy_addr); req->dev_addr = mdio_phy_id_devad(phy_addr); req->reg_addr = cpu_to_le16(reg); } resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) *val = le16_to_cpu(resp->reg_data); hwrm_req_drop(bp, req); return rc; } static int bnxt_hwrm_port_phy_write(struct bnxt *bp, u16 phy_addr, u16 reg, u16 val) { struct hwrm_port_phy_mdio_write_input *req; int rc; if (bp->hwrm_spec_code < 0x10a00) return -EOPNOTSUPP; rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_WRITE); if (rc) return rc; req->port_id = cpu_to_le16(bp->pf.port_id); req->phy_addr = phy_addr; req->reg_addr = cpu_to_le16(reg & 0x1f); if (mdio_phy_id_is_c45(phy_addr)) { req->cl45_mdio = 1; req->phy_addr = mdio_phy_id_prtad(phy_addr); req->dev_addr = mdio_phy_id_devad(phy_addr); req->reg_addr = cpu_to_le16(reg); } req->reg_data = cpu_to_le16(val); return hwrm_req_send(bp, req); } /* rtnl_lock held */ static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct mii_ioctl_data *mdio = if_mii(ifr); struct bnxt *bp = netdev_priv(dev); int rc; switch (cmd) { case SIOCGMIIPHY: mdio->phy_id = bp->link_info.phy_addr; fallthrough; case SIOCGMIIREG: { u16 mii_regval = 0; if (!netif_running(dev)) return -EAGAIN; rc = bnxt_hwrm_port_phy_read(bp, mdio->phy_id, mdio->reg_num, &mii_regval); mdio->val_out = mii_regval; return rc; } case SIOCSMIIREG: if (!netif_running(dev)) return -EAGAIN; return bnxt_hwrm_port_phy_write(bp, mdio->phy_id, mdio->reg_num, mdio->val_in); case SIOCSHWTSTAMP: return bnxt_hwtstamp_set(dev, ifr); case SIOCGHWTSTAMP: return bnxt_hwtstamp_get(dev, ifr); default: /* do nothing */ break; } return -EOPNOTSUPP; } static void bnxt_get_ring_stats(struct bnxt *bp, struct rtnl_link_stats64 *stats) { int i; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; u64 *sw = cpr->stats.sw_stats; stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_ucast_pkts); stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts); stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_bcast_pkts); stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_ucast_pkts); stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_mcast_pkts); stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_bcast_pkts); stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_ucast_bytes); stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_mcast_bytes); stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_bcast_bytes); stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_ucast_bytes); stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_mcast_bytes); stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_bcast_bytes); stats->rx_missed_errors += BNXT_GET_RING_STATS64(sw, rx_discard_pkts); stats->multicast += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts); stats->tx_dropped += BNXT_GET_RING_STATS64(sw, tx_error_pkts); stats->rx_dropped += cpr->sw_stats.rx.rx_netpoll_discards + cpr->sw_stats.rx.rx_oom_discards; } } static void bnxt_add_prev_stats(struct bnxt *bp, struct rtnl_link_stats64 *stats) { struct rtnl_link_stats64 *prev_stats = &bp->net_stats_prev; stats->rx_packets += prev_stats->rx_packets; stats->tx_packets += prev_stats->tx_packets; stats->rx_bytes += prev_stats->rx_bytes; stats->tx_bytes += prev_stats->tx_bytes; stats->rx_missed_errors += prev_stats->rx_missed_errors; stats->multicast += prev_stats->multicast; stats->rx_dropped += prev_stats->rx_dropped; stats->tx_dropped += prev_stats->tx_dropped; } static void bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) { struct bnxt *bp = netdev_priv(dev); set_bit(BNXT_STATE_READ_STATS, &bp->state); /* Make sure bnxt_close_nic() sees that we are reading stats before * we check the BNXT_STATE_OPEN flag. */ smp_mb__after_atomic(); if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { clear_bit(BNXT_STATE_READ_STATS, &bp->state); *stats = bp->net_stats_prev; return; } bnxt_get_ring_stats(bp, stats); bnxt_add_prev_stats(bp, stats); if (bp->flags & BNXT_FLAG_PORT_STATS) { u64 *rx = bp->port_stats.sw_stats; u64 *tx = bp->port_stats.sw_stats + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8; stats->rx_crc_errors = BNXT_GET_RX_PORT_STATS64(rx, rx_fcs_err_frames); stats->rx_frame_errors = BNXT_GET_RX_PORT_STATS64(rx, rx_align_err_frames); stats->rx_length_errors = BNXT_GET_RX_PORT_STATS64(rx, rx_undrsz_frames) + BNXT_GET_RX_PORT_STATS64(rx, rx_ovrsz_frames) + BNXT_GET_RX_PORT_STATS64(rx, rx_runt_frames); stats->rx_errors = BNXT_GET_RX_PORT_STATS64(rx, rx_false_carrier_frames) + BNXT_GET_RX_PORT_STATS64(rx, rx_jbr_frames); stats->collisions = BNXT_GET_TX_PORT_STATS64(tx, tx_total_collisions); stats->tx_fifo_errors = BNXT_GET_TX_PORT_STATS64(tx, tx_fifo_underruns); stats->tx_errors = BNXT_GET_TX_PORT_STATS64(tx, tx_err); } clear_bit(BNXT_STATE_READ_STATS, &bp->state); } static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask) { struct net_device *dev = bp->dev; struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; struct netdev_hw_addr *ha; u8 *haddr; int mc_count = 0; bool update = false; int off = 0; netdev_for_each_mc_addr(ha, dev) { if (mc_count >= BNXT_MAX_MC_ADDRS) { *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; vnic->mc_list_count = 0; return false; } haddr = ha->addr; if (!ether_addr_equal(haddr, vnic->mc_list + off)) { memcpy(vnic->mc_list + off, haddr, ETH_ALEN); update = true; } off += ETH_ALEN; mc_count++; } if (mc_count) *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST; if (mc_count != vnic->mc_list_count) { vnic->mc_list_count = mc_count; update = true; } return update; } static bool bnxt_uc_list_updated(struct bnxt *bp) { struct net_device *dev = bp->dev; struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; struct netdev_hw_addr *ha; int off = 0; if (netdev_uc_count(dev) != (vnic->uc_filter_count - 1)) return true; netdev_for_each_uc_addr(ha, dev) { if (!ether_addr_equal(ha->addr, vnic->uc_list + off)) return true; off += ETH_ALEN; } return false; } static void bnxt_set_rx_mode(struct net_device *dev) { struct bnxt *bp = netdev_priv(dev); struct bnxt_vnic_info *vnic; bool mc_update = false; bool uc_update; u32 mask; if (!test_bit(BNXT_STATE_OPEN, &bp->state)) return; vnic = &bp->vnic_info[0]; mask = vnic->rx_mask; mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS | CFA_L2_SET_RX_MASK_REQ_MASK_MCAST | CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST | CFA_L2_SET_RX_MASK_REQ_MASK_BCAST); if (dev->flags & IFF_PROMISC) mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; uc_update = bnxt_uc_list_updated(bp); if (dev->flags & IFF_BROADCAST) mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST; if (dev->flags & IFF_ALLMULTI) { mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; vnic->mc_list_count = 0; } else if (dev->flags & IFF_MULTICAST) { mc_update = bnxt_mc_list_updated(bp, &mask); } if (mask != vnic->rx_mask || uc_update || mc_update) { vnic->rx_mask = mask; set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } } static int bnxt_cfg_rx_mode(struct bnxt *bp) { struct net_device *dev = bp->dev; struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; struct hwrm_cfa_l2_filter_free_input *req; struct netdev_hw_addr *ha; int i, off = 0, rc; bool uc_update; netif_addr_lock_bh(dev); uc_update = bnxt_uc_list_updated(bp); netif_addr_unlock_bh(dev); if (!uc_update) goto skip_uc; rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_FREE); if (rc) return rc; hwrm_req_hold(bp, req); for (i = 1; i < vnic->uc_filter_count; i++) { req->l2_filter_id = vnic->fw_l2_filter_id[i]; rc = hwrm_req_send(bp, req); } hwrm_req_drop(bp, req); vnic->uc_filter_count = 1; netif_addr_lock_bh(dev); if (netdev_uc_count(dev) > (BNXT_MAX_UC_ADDRS - 1)) { vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; } else { netdev_for_each_uc_addr(ha, dev) { memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN); off += ETH_ALEN; vnic->uc_filter_count++; } } netif_addr_unlock_bh(dev); for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) { rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off); if (rc) { if (BNXT_VF(bp) && rc == -ENODEV) { if (!test_and_set_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) netdev_warn(bp->dev, "Cannot configure L2 filters while PF is unavailable, will retry\n"); else netdev_dbg(bp->dev, "PF still unavailable while configuring L2 filters.\n"); rc = 0; } else { netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); } vnic->uc_filter_count = i; return rc; } } if (test_and_clear_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) netdev_notice(bp->dev, "Retry of L2 filter configuration successful.\n"); skip_uc: if ((vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS) && !bnxt_promisc_ok(bp)) vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); if (rc && (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST)) { netdev_info(bp->dev, "Failed setting MC filters rc: %d, turning on ALL_MCAST mode\n", rc); vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_MCAST; vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; vnic->mc_list_count = 0; rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); } if (rc) netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %d\n", rc); return rc; } static bool bnxt_can_reserve_rings(struct bnxt *bp) { #ifdef CONFIG_BNXT_SRIOV if (BNXT_NEW_RM(bp) && BNXT_VF(bp)) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; /* No minimum rings were provisioned by the PF. Don't * reserve rings by default when device is down. */ if (hw_resc->min_tx_rings || hw_resc->resv_tx_rings) return true; if (!netif_running(bp->dev)) return false; } #endif return true; } /* If the chip and firmware supports RFS */ static bool bnxt_rfs_supported(struct bnxt *bp) { if (bp->flags & BNXT_FLAG_CHIP_P5) { if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) return true; return false; } /* 212 firmware is broken for aRFS */ if (BNXT_FW_MAJ(bp) == 212) return false; if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp)) return true; if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) return true; return false; } /* If runtime conditions support RFS */ static bool bnxt_rfs_capable(struct bnxt *bp) { #ifdef CONFIG_RFS_ACCEL int vnics, max_vnics, max_rss_ctxs; if (bp->flags & BNXT_FLAG_CHIP_P5) return bnxt_rfs_supported(bp); if (!(bp->flags & BNXT_FLAG_MSIX_CAP) || !bnxt_can_reserve_rings(bp) || !bp->rx_nr_rings) return false; vnics = 1 + bp->rx_nr_rings; max_vnics = bnxt_get_max_func_vnics(bp); max_rss_ctxs = bnxt_get_max_func_rss_ctxs(bp); /* RSS contexts not a limiting factor */ if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) max_rss_ctxs = max_vnics; if (vnics > max_vnics || vnics > max_rss_ctxs) { if (bp->rx_nr_rings > 1) netdev_warn(bp->dev, "Not enough resources to support NTUPLE filters, enough resources for up to %d rx rings\n", min(max_rss_ctxs - 1, max_vnics - 1)); return false; } if (!BNXT_NEW_RM(bp)) return true; if (vnics == bp->hw_resc.resv_vnics) return true; bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, vnics); if (vnics <= bp->hw_resc.resv_vnics) return true; netdev_warn(bp->dev, "Unable to reserve resources to support NTUPLE filters.\n"); bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, 1); return false; #else return false; #endif } static netdev_features_t bnxt_fix_features(struct net_device *dev, netdev_features_t features) { struct bnxt *bp = netdev_priv(dev); netdev_features_t vlan_features; if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp)) features &= ~NETIF_F_NTUPLE; if ((bp->flags & BNXT_FLAG_NO_AGG_RINGS) || bp->xdp_prog) features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); if (!(features & NETIF_F_GRO)) features &= ~NETIF_F_GRO_HW; if (features & NETIF_F_GRO_HW) features &= ~NETIF_F_LRO; /* Both CTAG and STAG VLAN accelaration on the RX side have to be * turned on or off together. */ vlan_features = features & BNXT_HW_FEATURE_VLAN_ALL_RX; if (vlan_features != BNXT_HW_FEATURE_VLAN_ALL_RX) { if (dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX) features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX; else if (vlan_features) features |= BNXT_HW_FEATURE_VLAN_ALL_RX; } #ifdef CONFIG_BNXT_SRIOV if (BNXT_VF(bp) && bp->vf.vlan) features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX; #endif return features; } static int bnxt_set_features(struct net_device *dev, netdev_features_t features) { struct bnxt *bp = netdev_priv(dev); u32 flags = bp->flags; u32 changes; int rc = 0; bool re_init = false; bool update_tpa = false; flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS; if (features & NETIF_F_GRO_HW) flags |= BNXT_FLAG_GRO; else if (features & NETIF_F_LRO) flags |= BNXT_FLAG_LRO; if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) flags &= ~BNXT_FLAG_TPA; if (features & BNXT_HW_FEATURE_VLAN_ALL_RX) flags |= BNXT_FLAG_STRIP_VLAN; if (features & NETIF_F_NTUPLE) flags |= BNXT_FLAG_RFS; changes = flags ^ bp->flags; if (changes & BNXT_FLAG_TPA) { update_tpa = true; if ((bp->flags & BNXT_FLAG_TPA) == 0 || (flags & BNXT_FLAG_TPA) == 0 || (bp->flags & BNXT_FLAG_CHIP_P5)) re_init = true; } if (changes & ~BNXT_FLAG_TPA) re_init = true; if (flags != bp->flags) { u32 old_flags = bp->flags; if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { bp->flags = flags; if (update_tpa) bnxt_set_ring_params(bp); return rc; } if (re_init) { bnxt_close_nic(bp, false, false); bp->flags = flags; if (update_tpa) bnxt_set_ring_params(bp); return bnxt_open_nic(bp, false, false); } if (update_tpa) { bp->flags = flags; rc = bnxt_set_tpa(bp, (flags & BNXT_FLAG_TPA) ? true : false); if (rc) bp->flags = old_flags; } } return rc; } static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off, u8 **nextp) { struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + nw_off); struct hop_jumbo_hdr *jhdr; int hdr_count = 0; u8 *nexthdr; int start; /* Check that there are at most 2 IPv6 extension headers, no * fragment header, and each is <= 64 bytes. */ start = nw_off + sizeof(*ip6h); nexthdr = &ip6h->nexthdr; while (ipv6_ext_hdr(*nexthdr)) { struct ipv6_opt_hdr *hp; int hdrlen; if (hdr_count >= 3 || *nexthdr == NEXTHDR_NONE || *nexthdr == NEXTHDR_FRAGMENT) return false; hp = __skb_header_pointer(NULL, start, sizeof(*hp), skb->data, skb_headlen(skb), NULL); if (!hp) return false; if (*nexthdr == NEXTHDR_AUTH) hdrlen = ipv6_authlen(hp); else hdrlen = ipv6_optlen(hp); if (hdrlen > 64) return false; /* The ext header may be a hop-by-hop header inserted for * big TCP purposes. This will be removed before sending * from NIC, so do not count it. */ if (*nexthdr == NEXTHDR_HOP) { if (likely(skb->len <= GRO_LEGACY_MAX_SIZE)) goto increment_hdr; jhdr = (struct hop_jumbo_hdr *)hp; if (jhdr->tlv_type != IPV6_TLV_JUMBO || jhdr->hdrlen != 0 || jhdr->nexthdr != IPPROTO_TCP) goto increment_hdr; goto next_hdr; } increment_hdr: hdr_count++; next_hdr: nexthdr = &hp->nexthdr; start += hdrlen; } if (nextp) { /* Caller will check inner protocol */ if (skb->encapsulation) { *nextp = nexthdr; return true; } *nextp = NULL; } /* Only support TCP/UDP for non-tunneled ipv6 and inner ipv6 */ return *nexthdr == IPPROTO_TCP || *nexthdr == IPPROTO_UDP; } /* For UDP, we can only handle 1 Vxlan port and 1 Geneve port. */ static bool bnxt_udp_tunl_check(struct bnxt *bp, struct sk_buff *skb) { struct udphdr *uh = udp_hdr(skb); __be16 udp_port = uh->dest; if (udp_port != bp->vxlan_port && udp_port != bp->nge_port) return false; if (skb->inner_protocol_type == ENCAP_TYPE_ETHER) { struct ethhdr *eh = inner_eth_hdr(skb); switch (eh->h_proto) { case htons(ETH_P_IP): return true; case htons(ETH_P_IPV6): return bnxt_exthdr_check(bp, skb, skb_inner_network_offset(skb), NULL); } } return false; } static bool bnxt_tunl_check(struct bnxt *bp, struct sk_buff *skb, u8 l4_proto) { switch (l4_proto) { case IPPROTO_UDP: return bnxt_udp_tunl_check(bp, skb); case IPPROTO_IPIP: return true; case IPPROTO_GRE: { switch (skb->inner_protocol) { default: return false; case htons(ETH_P_IP): return true; case htons(ETH_P_IPV6): fallthrough; } } case IPPROTO_IPV6: /* Check ext headers of inner ipv6 */ return bnxt_exthdr_check(bp, skb, skb_inner_network_offset(skb), NULL); } return false; } static netdev_features_t bnxt_features_check(struct sk_buff *skb, struct net_device *dev, netdev_features_t features) { struct bnxt *bp = netdev_priv(dev); u8 *l4_proto; features = vlan_features_check(skb, features); switch (vlan_get_protocol(skb)) { case htons(ETH_P_IP): if (!skb->encapsulation) return features; l4_proto = &ip_hdr(skb)->protocol; if (bnxt_tunl_check(bp, skb, *l4_proto)) return features; break; case htons(ETH_P_IPV6): if (!bnxt_exthdr_check(bp, skb, skb_network_offset(skb), &l4_proto)) break; if (!l4_proto || bnxt_tunl_check(bp, skb, *l4_proto)) return features; break; } return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); } int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words, u32 *reg_buf) { struct hwrm_dbg_read_direct_output *resp; struct hwrm_dbg_read_direct_input *req; __le32 *dbg_reg_buf; dma_addr_t mapping; int rc, i; rc = hwrm_req_init(bp, req, HWRM_DBG_READ_DIRECT); if (rc) return rc; dbg_reg_buf = hwrm_req_dma_slice(bp, req, num_words * 4, &mapping); if (!dbg_reg_buf) { rc = -ENOMEM; goto dbg_rd_reg_exit; } req->host_dest_addr = cpu_to_le64(mapping); resp = hwrm_req_hold(bp, req); req->read_addr = cpu_to_le32(reg_off + CHIMP_REG_VIEW_ADDR); req->read_len32 = cpu_to_le32(num_words); rc = hwrm_req_send(bp, req); if (rc || resp->error_code) { rc = -EIO; goto dbg_rd_reg_exit; } for (i = 0; i < num_words; i++) reg_buf[i] = le32_to_cpu(dbg_reg_buf[i]); dbg_rd_reg_exit: hwrm_req_drop(bp, req); return rc; } static int bnxt_dbg_hwrm_ring_info_get(struct bnxt *bp, u8 ring_type, u32 ring_id, u32 *prod, u32 *cons) { struct hwrm_dbg_ring_info_get_output *resp; struct hwrm_dbg_ring_info_get_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_DBG_RING_INFO_GET); if (rc) return rc; req->ring_type = ring_type; req->fw_ring_id = cpu_to_le32(ring_id); resp = hwrm_req_hold(bp, req); rc = hwrm_req_send(bp, req); if (!rc) { *prod = le32_to_cpu(resp->producer_index); *cons = le32_to_cpu(resp->consumer_index); } hwrm_req_drop(bp, req); return rc; } static void bnxt_dump_tx_sw_state(struct bnxt_napi *bnapi) { struct bnxt_tx_ring_info *txr = bnapi->tx_ring; int i = bnapi->index; if (!txr) return; netdev_info(bnapi->bp->dev, "[%d]: tx{fw_ring: %d prod: %x cons: %x}\n", i, txr->tx_ring_struct.fw_ring_id, txr->tx_prod, txr->tx_cons); } static void bnxt_dump_rx_sw_state(struct bnxt_napi *bnapi) { struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; int i = bnapi->index; if (!rxr) return; netdev_info(bnapi->bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n", i, rxr->rx_ring_struct.fw_ring_id, rxr->rx_prod, rxr->rx_agg_ring_struct.fw_ring_id, rxr->rx_agg_prod, rxr->rx_sw_agg_prod); } static void bnxt_dump_cp_sw_state(struct bnxt_napi *bnapi) { struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; int i = bnapi->index; netdev_info(bnapi->bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n", i, cpr->cp_ring_struct.fw_ring_id, cpr->cp_raw_cons); } static void bnxt_dbg_dump_states(struct bnxt *bp) { int i; struct bnxt_napi *bnapi; for (i = 0; i < bp->cp_nr_rings; i++) { bnapi = bp->bnapi[i]; if (netif_msg_drv(bp)) { bnxt_dump_tx_sw_state(bnapi); bnxt_dump_rx_sw_state(bnapi); bnxt_dump_cp_sw_state(bnapi); } } } static int bnxt_hwrm_rx_ring_reset(struct bnxt *bp, int ring_nr) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr]; struct hwrm_ring_reset_input *req; struct bnxt_napi *bnapi = rxr->bnapi; struct bnxt_cp_ring_info *cpr; u16 cp_ring_id; int rc; rc = hwrm_req_init(bp, req, HWRM_RING_RESET); if (rc) return rc; cpr = &bnapi->cp_ring; cp_ring_id = cpr->cp_ring_struct.fw_ring_id; req->cmpl_ring = cpu_to_le16(cp_ring_id); req->ring_type = RING_RESET_REQ_RING_TYPE_RX_RING_GRP; req->ring_id = cpu_to_le16(bp->grp_info[bnapi->index].fw_grp_id); return hwrm_req_send_silent(bp, req); } static void bnxt_reset_task(struct bnxt *bp, bool silent) { if (!silent) bnxt_dbg_dump_states(bp); if (netif_running(bp->dev)) { int rc; if (silent) { bnxt_close_nic(bp, false, false); bnxt_open_nic(bp, false, false); } else { bnxt_ulp_stop(bp); bnxt_close_nic(bp, true, false); rc = bnxt_open_nic(bp, true, false); bnxt_ulp_start(bp, rc); } } } static void bnxt_tx_timeout(struct net_device *dev, unsigned int txqueue) { struct bnxt *bp = netdev_priv(dev); netdev_err(bp->dev, "TX timeout detected, starting reset task!\n"); set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } static void bnxt_fw_health_check(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; u32 val; if (!fw_health->enabled || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) return; /* Make sure it is enabled before checking the tmr_counter. */ smp_rmb(); if (fw_health->tmr_counter) { fw_health->tmr_counter--; return; } val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); if (val == fw_health->last_fw_heartbeat) { fw_health->arrests++; goto fw_reset; } fw_health->last_fw_heartbeat = val; val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); if (val != fw_health->last_fw_reset_cnt) { fw_health->discoveries++; goto fw_reset; } fw_health->tmr_counter = fw_health->tmr_multiplier; return; fw_reset: set_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } static void bnxt_timer(struct timer_list *t) { struct bnxt *bp = from_timer(bp, t, timer); struct net_device *dev = bp->dev; if (!netif_running(dev) || !test_bit(BNXT_STATE_OPEN, &bp->state)) return; if (atomic_read(&bp->intr_sem) != 0) goto bnxt_restart_timer; if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) bnxt_fw_health_check(bp); if (BNXT_LINK_IS_UP(bp) && bp->stats_coal_ticks) { set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } if (bnxt_tc_flower_enabled(bp)) { set_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } #ifdef CONFIG_RFS_ACCEL if ((bp->flags & BNXT_FLAG_RFS) && bp->ntp_fltr_count) { set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } #endif /*CONFIG_RFS_ACCEL*/ if (bp->link_info.phy_retry) { if (time_after(jiffies, bp->link_info.phy_retry_expires)) { bp->link_info.phy_retry = false; netdev_warn(bp->dev, "failed to update phy settings after maximum retries.\n"); } else { set_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } } if (test_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) { set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } if ((bp->flags & BNXT_FLAG_CHIP_P5) && !bp->chip_rev && netif_carrier_ok(dev)) { set_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); } bnxt_restart_timer: mod_timer(&bp->timer, jiffies + bp->current_interval); } static void bnxt_rtnl_lock_sp(struct bnxt *bp) { /* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK * set. If the device is being closed, bnxt_close() may be holding * rtnl() and waiting for BNXT_STATE_IN_SP_TASK to clear. So we * must clear BNXT_STATE_IN_SP_TASK before holding rtnl(). */ clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); rtnl_lock(); } static void bnxt_rtnl_unlock_sp(struct bnxt *bp) { set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); rtnl_unlock(); } /* Only called from bnxt_sp_task() */ static void bnxt_reset(struct bnxt *bp, bool silent) { bnxt_rtnl_lock_sp(bp); if (test_bit(BNXT_STATE_OPEN, &bp->state)) bnxt_reset_task(bp, silent); bnxt_rtnl_unlock_sp(bp); } /* Only called from bnxt_sp_task() */ static void bnxt_rx_ring_reset(struct bnxt *bp) { int i; bnxt_rtnl_lock_sp(bp); if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { bnxt_rtnl_unlock_sp(bp); return; } /* Disable and flush TPA before resetting the RX ring */ if (bp->flags & BNXT_FLAG_TPA) bnxt_set_tpa(bp, false); for (i = 0; i < bp->rx_nr_rings; i++) { struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; struct bnxt_cp_ring_info *cpr; int rc; if (!rxr->bnapi->in_reset) continue; rc = bnxt_hwrm_rx_ring_reset(bp, i); if (rc) { if (rc == -EINVAL || rc == -EOPNOTSUPP) netdev_info_once(bp->dev, "RX ring reset not supported by firmware, falling back to global reset\n"); else netdev_warn(bp->dev, "RX ring reset failed, rc = %d, falling back to global reset\n", rc); bnxt_reset_task(bp, true); break; } bnxt_free_one_rx_ring_skbs(bp, i); rxr->rx_prod = 0; rxr->rx_agg_prod = 0; rxr->rx_sw_agg_prod = 0; rxr->rx_next_cons = 0; rxr->bnapi->in_reset = false; bnxt_alloc_one_rx_ring(bp, i); cpr = &rxr->bnapi->cp_ring; cpr->sw_stats.rx.rx_resets++; if (bp->flags & BNXT_FLAG_AGG_RINGS) bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod); bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod); } if (bp->flags & BNXT_FLAG_TPA) bnxt_set_tpa(bp, true); bnxt_rtnl_unlock_sp(bp); } static void bnxt_fw_reset_close(struct bnxt *bp) { bnxt_ulp_stop(bp); /* When firmware is in fatal state, quiesce device and disable * bus master to prevent any potential bad DMAs before freeing * kernel memory. */ if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) { u16 val = 0; pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val); if (val == 0xffff) bp->fw_reset_min_dsecs = 0; bnxt_tx_disable(bp); bnxt_disable_napi(bp); bnxt_disable_int_sync(bp); bnxt_free_irq(bp); bnxt_clear_int_mode(bp); pci_disable_device(bp->pdev); } __bnxt_close_nic(bp, true, false); bnxt_vf_reps_free(bp); bnxt_clear_int_mode(bp); bnxt_hwrm_func_drv_unrgtr(bp); if (pci_is_enabled(bp->pdev)) pci_disable_device(bp->pdev); bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; } static bool is_bnxt_fw_ok(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; bool no_heartbeat = false, has_reset = false; u32 val; val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG); if (val == fw_health->last_fw_heartbeat) no_heartbeat = true; val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); if (val != fw_health->last_fw_reset_cnt) has_reset = true; if (!no_heartbeat && has_reset) return true; return false; } /* rtnl_lock is acquired before calling this function */ static void bnxt_force_fw_reset(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; u32 wait_dsecs; if (!test_bit(BNXT_STATE_OPEN, &bp->state) || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) return; if (ptp) { spin_lock_bh(&ptp->ptp_lock); set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); spin_unlock_bh(&ptp->ptp_lock); } else { set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); } bnxt_fw_reset_close(bp); wait_dsecs = fw_health->master_func_wait_dsecs; if (fw_health->primary) { if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) wait_dsecs = 0; bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW; } else { bp->fw_reset_timestamp = jiffies + wait_dsecs * HZ / 10; wait_dsecs = fw_health->normal_func_wait_dsecs; bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; } bp->fw_reset_min_dsecs = fw_health->post_reset_wait_dsecs; bp->fw_reset_max_dsecs = fw_health->post_reset_max_wait_dsecs; bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10); } void bnxt_fw_exception(struct bnxt *bp) { netdev_warn(bp->dev, "Detected firmware fatal condition, initiating reset\n"); set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); bnxt_rtnl_lock_sp(bp); bnxt_force_fw_reset(bp); bnxt_rtnl_unlock_sp(bp); } /* Returns the number of registered VFs, or 1 if VF configuration is pending, or * < 0 on error. */ static int bnxt_get_registered_vfs(struct bnxt *bp) { #ifdef CONFIG_BNXT_SRIOV int rc; if (!BNXT_PF(bp)) return 0; rc = bnxt_hwrm_func_qcfg(bp); if (rc) { netdev_err(bp->dev, "func_qcfg cmd failed, rc = %d\n", rc); return rc; } if (bp->pf.registered_vfs) return bp->pf.registered_vfs; if (bp->sriov_cfg) return 1; #endif return 0; } void bnxt_fw_reset(struct bnxt *bp) { bnxt_rtnl_lock_sp(bp); if (test_bit(BNXT_STATE_OPEN, &bp->state) && !test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; int n = 0, tmo; if (ptp) { spin_lock_bh(&ptp->ptp_lock); set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); spin_unlock_bh(&ptp->ptp_lock); } else { set_bit(BNXT_STATE_IN_FW_RESET, &bp->state); } if (bp->pf.active_vfs && !test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) n = bnxt_get_registered_vfs(bp); if (n < 0) { netdev_err(bp->dev, "Firmware reset aborted, rc = %d\n", n); clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); dev_close(bp->dev); goto fw_reset_exit; } else if (n > 0) { u16 vf_tmo_dsecs = n * 10; if (bp->fw_reset_max_dsecs < vf_tmo_dsecs) bp->fw_reset_max_dsecs = vf_tmo_dsecs; bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_VF; bnxt_queue_fw_reset_work(bp, HZ / 10); goto fw_reset_exit; } bnxt_fw_reset_close(bp); if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN; tmo = HZ / 10; } else { bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; tmo = bp->fw_reset_min_dsecs * HZ / 10; } bnxt_queue_fw_reset_work(bp, tmo); } fw_reset_exit: bnxt_rtnl_unlock_sp(bp); } static void bnxt_chk_missed_irq(struct bnxt *bp) { int i; if (!(bp->flags & BNXT_FLAG_CHIP_P5)) return; for (i = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr; u32 fw_ring_id; int j; if (!bnapi) continue; cpr = &bnapi->cp_ring; for (j = 0; j < 2; j++) { struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j]; u32 val[2]; if (!cpr2 || cpr2->has_more_work || !bnxt_has_work(bp, cpr2)) continue; if (cpr2->cp_raw_cons != cpr2->last_cp_raw_cons) { cpr2->last_cp_raw_cons = cpr2->cp_raw_cons; continue; } fw_ring_id = cpr2->cp_ring_struct.fw_ring_id; bnxt_dbg_hwrm_ring_info_get(bp, DBG_RING_INFO_GET_REQ_RING_TYPE_L2_CMPL, fw_ring_id, &val[0], &val[1]); cpr->sw_stats.cmn.missed_irqs++; } } } static void bnxt_cfg_ntp_filters(struct bnxt *); static void bnxt_init_ethtool_link_settings(struct bnxt *bp) { struct bnxt_link_info *link_info = &bp->link_info; if (BNXT_AUTO_MODE(link_info->auto_mode)) { link_info->autoneg = BNXT_AUTONEG_SPEED; if (bp->hwrm_spec_code >= 0x10201) { if (link_info->auto_pause_setting & PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE) link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; } else { link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; } link_info->advertising = link_info->auto_link_speeds; link_info->advertising_pam4 = link_info->auto_pam4_link_speeds; } else { link_info->req_link_speed = link_info->force_link_speed; link_info->req_signal_mode = BNXT_SIG_MODE_NRZ; if (link_info->force_pam4_link_speed) { link_info->req_link_speed = link_info->force_pam4_link_speed; link_info->req_signal_mode = BNXT_SIG_MODE_PAM4; } link_info->req_duplex = link_info->duplex_setting; } if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) link_info->req_flow_ctrl = link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH; else link_info->req_flow_ctrl = link_info->force_pause_setting; } static void bnxt_fw_echo_reply(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; struct hwrm_func_echo_response_input *req; int rc; rc = hwrm_req_init(bp, req, HWRM_FUNC_ECHO_RESPONSE); if (rc) return; req->event_data1 = cpu_to_le32(fw_health->echo_req_data1); req->event_data2 = cpu_to_le32(fw_health->echo_req_data2); hwrm_req_send(bp, req); } static void bnxt_sp_task(struct work_struct *work) { struct bnxt *bp = container_of(work, struct bnxt, sp_task); set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); smp_mb__after_atomic(); if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); return; } if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event)) bnxt_cfg_rx_mode(bp); if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event)) bnxt_cfg_ntp_filters(bp); if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event)) bnxt_hwrm_exec_fwd_req(bp); if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) { bnxt_hwrm_port_qstats(bp, 0); bnxt_hwrm_port_qstats_ext(bp, 0); bnxt_accumulate_all_stats(bp); } if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) { int rc; mutex_lock(&bp->link_lock); if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event)) bnxt_hwrm_phy_qcaps(bp); rc = bnxt_update_link(bp, true); if (rc) netdev_err(bp->dev, "SP task can't update link (rc: %x)\n", rc); if (test_and_clear_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, &bp->sp_event)) bnxt_init_ethtool_link_settings(bp); mutex_unlock(&bp->link_lock); } if (test_and_clear_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event)) { int rc; mutex_lock(&bp->link_lock); rc = bnxt_update_phy_setting(bp); mutex_unlock(&bp->link_lock); if (rc) { netdev_warn(bp->dev, "update phy settings retry failed\n"); } else { bp->link_info.phy_retry = false; netdev_info(bp->dev, "update phy settings retry succeeded\n"); } } if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) { mutex_lock(&bp->link_lock); bnxt_get_port_module_status(bp); mutex_unlock(&bp->link_lock); } if (test_and_clear_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event)) bnxt_tc_flow_stats_work(bp); if (test_and_clear_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event)) bnxt_chk_missed_irq(bp); if (test_and_clear_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event)) bnxt_fw_echo_reply(bp); /* These functions below will clear BNXT_STATE_IN_SP_TASK. They * must be the last functions to be called before exiting. */ if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event)) bnxt_reset(bp, false); if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event)) bnxt_reset(bp, true); if (test_and_clear_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event)) bnxt_rx_ring_reset(bp); if (test_and_clear_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event)) { if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) || test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state)) bnxt_devlink_health_fw_report(bp); else bnxt_fw_reset(bp); } if (test_and_clear_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event)) { if (!is_bnxt_fw_ok(bp)) bnxt_devlink_health_fw_report(bp); } smp_mb__before_atomic(); clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); } /* Under rtnl_lock */ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, int tx_xdp) { int max_rx, max_tx, tx_sets = 1; int tx_rings_needed, stats; int rx_rings = rx; int cp, vnics, rc; if (tcs) tx_sets = tcs; rc = bnxt_get_max_rings(bp, &max_rx, &max_tx, sh); if (rc) return rc; if (max_rx < rx) return -ENOMEM; tx_rings_needed = tx * tx_sets + tx_xdp; if (max_tx < tx_rings_needed) return -ENOMEM; vnics = 1; if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS) vnics += rx_rings; if (bp->flags & BNXT_FLAG_AGG_RINGS) rx_rings <<= 1; cp = sh ? max_t(int, tx_rings_needed, rx) : tx_rings_needed + rx; stats = cp; if (BNXT_NEW_RM(bp)) { cp += bnxt_get_ulp_msix_num(bp); stats += bnxt_get_ulp_stat_ctxs(bp); } return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp, stats, vnics); } static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev) { if (bp->bar2) { pci_iounmap(pdev, bp->bar2); bp->bar2 = NULL; } if (bp->bar1) { pci_iounmap(pdev, bp->bar1); bp->bar1 = NULL; } if (bp->bar0) { pci_iounmap(pdev, bp->bar0); bp->bar0 = NULL; } } static void bnxt_cleanup_pci(struct bnxt *bp) { bnxt_unmap_bars(bp, bp->pdev); pci_release_regions(bp->pdev); if (pci_is_enabled(bp->pdev)) pci_disable_device(bp->pdev); } static void bnxt_init_dflt_coal(struct bnxt *bp) { struct bnxt_coal_cap *coal_cap = &bp->coal_cap; struct bnxt_coal *coal; u16 flags = 0; if (coal_cap->cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_TIMER_RESET) flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET; /* Tick values in micro seconds. * 1 coal_buf x bufs_per_record = 1 completion record. */ coal = &bp->rx_coal; coal->coal_ticks = 10; coal->coal_bufs = 30; coal->coal_ticks_irq = 1; coal->coal_bufs_irq = 2; coal->idle_thresh = 50; coal->bufs_per_record = 2; coal->budget = 64; /* NAPI budget */ coal->flags = flags; coal = &bp->tx_coal; coal->coal_ticks = 28; coal->coal_bufs = 30; coal->coal_ticks_irq = 2; coal->coal_bufs_irq = 2; coal->bufs_per_record = 1; coal->flags = flags; bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS; } static int bnxt_fw_init_one_p1(struct bnxt *bp) { int rc; bp->fw_cap = 0; rc = bnxt_hwrm_ver_get(bp); bnxt_try_map_fw_health_reg(bp); if (rc) { rc = bnxt_try_recover_fw(bp); if (rc) return rc; rc = bnxt_hwrm_ver_get(bp); if (rc) return rc; } bnxt_nvm_cfg_ver_get(bp); rc = bnxt_hwrm_func_reset(bp); if (rc) return -ENODEV; bnxt_hwrm_fw_set_time(bp); return 0; } static int bnxt_fw_init_one_p2(struct bnxt *bp) { int rc; /* Get the MAX capabilities for this function */ rc = bnxt_hwrm_func_qcaps(bp); if (rc) { netdev_err(bp->dev, "hwrm query capability failure rc: %x\n", rc); return -ENODEV; } rc = bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(bp); if (rc) netdev_warn(bp->dev, "hwrm query adv flow mgnt failure rc: %d\n", rc); if (bnxt_alloc_fw_health(bp)) { netdev_warn(bp->dev, "no memory for firmware error recovery\n"); } else { rc = bnxt_hwrm_error_recovery_qcfg(bp); if (rc) netdev_warn(bp->dev, "hwrm query error recovery failure rc: %d\n", rc); } rc = bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false); if (rc) return -ENODEV; bnxt_hwrm_func_qcfg(bp); bnxt_hwrm_vnic_qcaps(bp); bnxt_hwrm_port_led_qcaps(bp); bnxt_ethtool_init(bp); bnxt_dcb_init(bp); return 0; } static void bnxt_set_dflt_rss_hash_type(struct bnxt *bp) { bp->flags &= ~BNXT_FLAG_UDP_RSS_CAP; bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 | VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 | VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 | VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6; if (bp->fw_cap & BNXT_FW_CAP_RSS_HASH_TYPE_DELTA) bp->rss_hash_delta = bp->rss_hash_cfg; if (BNXT_CHIP_P4_PLUS(bp) && bp->hwrm_spec_code >= 0x10501) { bp->flags |= BNXT_FLAG_UDP_RSS_CAP; bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 | VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; } } static void bnxt_set_dflt_rfs(struct bnxt *bp) { struct net_device *dev = bp->dev; dev->hw_features &= ~NETIF_F_NTUPLE; dev->features &= ~NETIF_F_NTUPLE; bp->flags &= ~BNXT_FLAG_RFS; if (bnxt_rfs_supported(bp)) { dev->hw_features |= NETIF_F_NTUPLE; if (bnxt_rfs_capable(bp)) { bp->flags |= BNXT_FLAG_RFS; dev->features |= NETIF_F_NTUPLE; } } } static void bnxt_fw_init_one_p3(struct bnxt *bp) { struct pci_dev *pdev = bp->pdev; bnxt_set_dflt_rss_hash_type(bp); bnxt_set_dflt_rfs(bp); bnxt_get_wol_settings(bp); if (bp->flags & BNXT_FLAG_WOL_CAP) device_set_wakeup_enable(&pdev->dev, bp->wol); else device_set_wakeup_capable(&pdev->dev, false); bnxt_hwrm_set_cache_line_size(bp, cache_line_size()); bnxt_hwrm_coal_params_qcaps(bp); } static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt); int bnxt_fw_init_one(struct bnxt *bp) { int rc; rc = bnxt_fw_init_one_p1(bp); if (rc) { netdev_err(bp->dev, "Firmware init phase 1 failed\n"); return rc; } rc = bnxt_fw_init_one_p2(bp); if (rc) { netdev_err(bp->dev, "Firmware init phase 2 failed\n"); return rc; } rc = bnxt_probe_phy(bp, false); if (rc) return rc; rc = bnxt_approve_mac(bp, bp->dev->dev_addr, false); if (rc) return rc; bnxt_fw_init_one_p3(bp); return 0; } static void bnxt_fw_reset_writel(struct bnxt *bp, int reg_idx) { struct bnxt_fw_health *fw_health = bp->fw_health; u32 reg = fw_health->fw_reset_seq_regs[reg_idx]; u32 val = fw_health->fw_reset_seq_vals[reg_idx]; u32 reg_type, reg_off, delay_msecs; delay_msecs = fw_health->fw_reset_seq_delay_msec[reg_idx]; reg_type = BNXT_FW_HEALTH_REG_TYPE(reg); reg_off = BNXT_FW_HEALTH_REG_OFF(reg); switch (reg_type) { case BNXT_FW_HEALTH_REG_TYPE_CFG: pci_write_config_dword(bp->pdev, reg_off, val); break; case BNXT_FW_HEALTH_REG_TYPE_GRC: writel(reg_off & BNXT_GRC_BASE_MASK, bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 4); reg_off = (reg_off & BNXT_GRC_OFFSET_MASK) + 0x2000; fallthrough; case BNXT_FW_HEALTH_REG_TYPE_BAR0: writel(val, bp->bar0 + reg_off); break; case BNXT_FW_HEALTH_REG_TYPE_BAR1: writel(val, bp->bar1 + reg_off); break; } if (delay_msecs) { pci_read_config_dword(bp->pdev, 0, &val); msleep(delay_msecs); } } bool bnxt_hwrm_reset_permitted(struct bnxt *bp) { struct hwrm_func_qcfg_output *resp; struct hwrm_func_qcfg_input *req; bool result = true; /* firmware will enforce if unknown */ if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF) return result; if (hwrm_req_init(bp, req, HWRM_FUNC_QCFG)) return result; req->fid = cpu_to_le16(0xffff); resp = hwrm_req_hold(bp, req); if (!hwrm_req_send(bp, req)) result = !!(le16_to_cpu(resp->flags) & FUNC_QCFG_RESP_FLAGS_HOT_RESET_ALLOWED); hwrm_req_drop(bp, req); return result; } static void bnxt_reset_all(struct bnxt *bp) { struct bnxt_fw_health *fw_health = bp->fw_health; int i, rc; if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { bnxt_fw_reset_via_optee(bp); bp->fw_reset_timestamp = jiffies; return; } if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_HOST) { for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) bnxt_fw_reset_writel(bp, i); } else if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) { struct hwrm_fw_reset_input *req; rc = hwrm_req_init(bp, req, HWRM_FW_RESET); if (!rc) { req->target_id = cpu_to_le16(HWRM_TARGET_ID_KONG); req->embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP; req->selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP; req->flags = FW_RESET_REQ_FLAGS_RESET_GRACEFUL; rc = hwrm_req_send(bp, req); } if (rc != -ENODEV) netdev_warn(bp->dev, "Unable to reset FW rc=%d\n", rc); } bp->fw_reset_timestamp = jiffies; } static bool bnxt_fw_reset_timeout(struct bnxt *bp) { return time_after(jiffies, bp->fw_reset_timestamp + (bp->fw_reset_max_dsecs * HZ / 10)); } static void bnxt_fw_reset_abort(struct bnxt *bp, int rc) { clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF) { bnxt_ulp_start(bp, rc); bnxt_dl_health_fw_status_update(bp, false); } bp->fw_reset_state = 0; dev_close(bp->dev); } static void bnxt_fw_reset_task(struct work_struct *work) { struct bnxt *bp = container_of(work, struct bnxt, fw_reset_task.work); int rc = 0; if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) { netdev_err(bp->dev, "bnxt_fw_reset_task() called when not in fw reset mode!\n"); return; } switch (bp->fw_reset_state) { case BNXT_FW_RESET_STATE_POLL_VF: { int n = bnxt_get_registered_vfs(bp); int tmo; if (n < 0) { netdev_err(bp->dev, "Firmware reset aborted, subsequent func_qcfg cmd failed, rc = %d, %d msecs since reset timestamp\n", n, jiffies_to_msecs(jiffies - bp->fw_reset_timestamp)); goto fw_reset_abort; } else if (n > 0) { if (bnxt_fw_reset_timeout(bp)) { clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); bp->fw_reset_state = 0; netdev_err(bp->dev, "Firmware reset aborted, bnxt_get_registered_vfs() returns %d\n", n); return; } bnxt_queue_fw_reset_work(bp, HZ / 10); return; } bp->fw_reset_timestamp = jiffies; rtnl_lock(); if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) { bnxt_fw_reset_abort(bp, rc); rtnl_unlock(); return; } bnxt_fw_reset_close(bp); if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) { bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN; tmo = HZ / 10; } else { bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; tmo = bp->fw_reset_min_dsecs * HZ / 10; } rtnl_unlock(); bnxt_queue_fw_reset_work(bp, tmo); return; } case BNXT_FW_RESET_STATE_POLL_FW_DOWN: { u32 val; val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); if (!(val & BNXT_FW_STATUS_SHUTDOWN) && !bnxt_fw_reset_timeout(bp)) { bnxt_queue_fw_reset_work(bp, HZ / 5); return; } if (!bp->fw_health->primary) { u32 wait_dsecs = bp->fw_health->normal_func_wait_dsecs; bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10); return; } bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW; } fallthrough; case BNXT_FW_RESET_STATE_RESET_FW: bnxt_reset_all(bp); bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV; bnxt_queue_fw_reset_work(bp, bp->fw_reset_min_dsecs * HZ / 10); return; case BNXT_FW_RESET_STATE_ENABLE_DEV: bnxt_inv_fw_health_reg(bp); if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) && !bp->fw_reset_min_dsecs) { u16 val; pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val); if (val == 0xffff) { if (bnxt_fw_reset_timeout(bp)) { netdev_err(bp->dev, "Firmware reset aborted, PCI config space invalid\n"); rc = -ETIMEDOUT; goto fw_reset_abort; } bnxt_queue_fw_reset_work(bp, HZ / 1000); return; } } clear_bit(BNXT_STATE_FW_FATAL_COND, &bp->state); clear_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state); if (test_and_clear_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state) && !test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state)) bnxt_dl_remote_reload(bp); if (pci_enable_device(bp->pdev)) { netdev_err(bp->dev, "Cannot re-enable PCI device\n"); rc = -ENODEV; goto fw_reset_abort; } pci_set_master(bp->pdev); bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW; fallthrough; case BNXT_FW_RESET_STATE_POLL_FW: bp->hwrm_cmd_timeout = SHORT_HWRM_CMD_TIMEOUT; rc = bnxt_hwrm_poll(bp); if (rc) { if (bnxt_fw_reset_timeout(bp)) { netdev_err(bp->dev, "Firmware reset aborted\n"); goto fw_reset_abort_status; } bnxt_queue_fw_reset_work(bp, HZ / 5); return; } bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT; bp->fw_reset_state = BNXT_FW_RESET_STATE_OPENING; fallthrough; case BNXT_FW_RESET_STATE_OPENING: while (!rtnl_trylock()) { bnxt_queue_fw_reset_work(bp, HZ / 10); return; } rc = bnxt_open(bp->dev); if (rc) { netdev_err(bp->dev, "bnxt_open() failed during FW reset\n"); bnxt_fw_reset_abort(bp, rc); rtnl_unlock(); return; } if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) && bp->fw_health->enabled) { bp->fw_health->last_fw_reset_cnt = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG); } bp->fw_reset_state = 0; /* Make sure fw_reset_state is 0 before clearing the flag */ smp_mb__before_atomic(); clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); bnxt_ulp_start(bp, 0); bnxt_reenable_sriov(bp); bnxt_vf_reps_alloc(bp); bnxt_vf_reps_open(bp); bnxt_ptp_reapply_pps(bp); clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state); if (test_and_clear_bit(BNXT_STATE_RECOVER, &bp->state)) { bnxt_dl_health_fw_recovery_done(bp); bnxt_dl_health_fw_status_update(bp, true); } rtnl_unlock(); break; } return; fw_reset_abort_status: if (bp->fw_health->status_reliable || (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) { u32 sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG); netdev_err(bp->dev, "fw_health_status 0x%x\n", sts); } fw_reset_abort: rtnl_lock(); bnxt_fw_reset_abort(bp, rc); rtnl_unlock(); } static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev) { int rc; struct bnxt *bp = netdev_priv(dev); SET_NETDEV_DEV(dev, &pdev->dev); /* enable device (incl. PCI PM wakeup), and bus-mastering */ rc = pci_enable_device(pdev); if (rc) { dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); goto init_err; } if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { dev_err(&pdev->dev, "Cannot find PCI device base address, aborting\n"); rc = -ENODEV; goto init_err_disable; } rc = pci_request_regions(pdev, DRV_MODULE_NAME); if (rc) { dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n"); goto init_err_disable; } if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 && dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) { dev_err(&pdev->dev, "System does not support DMA, aborting\n"); rc = -EIO; goto init_err_release; } pci_set_master(pdev); bp->dev = dev; bp->pdev = pdev; /* Doorbell BAR bp->bar1 is mapped after bnxt_fw_init_one_p2() * determines the BAR size. */ bp->bar0 = pci_ioremap_bar(pdev, 0); if (!bp->bar0) { dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); rc = -ENOMEM; goto init_err_release; } bp->bar2 = pci_ioremap_bar(pdev, 4); if (!bp->bar2) { dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n"); rc = -ENOMEM; goto init_err_release; } pci_enable_pcie_error_reporting(pdev); INIT_WORK(&bp->sp_task, bnxt_sp_task); INIT_DELAYED_WORK(&bp->fw_reset_task, bnxt_fw_reset_task); spin_lock_init(&bp->ntp_fltr_lock); #if BITS_PER_LONG == 32 spin_lock_init(&bp->db_lock); #endif bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE; bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE; timer_setup(&bp->timer, bnxt_timer, 0); bp->current_interval = BNXT_TIMER_INTERVAL; bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID; bp->nge_fw_dst_port_id = INVALID_HW_RING_ID; clear_bit(BNXT_STATE_OPEN, &bp->state); return 0; init_err_release: bnxt_unmap_bars(bp, pdev); pci_release_regions(pdev); init_err_disable: pci_disable_device(pdev); init_err: return rc; } /* rtnl_lock held */ static int bnxt_change_mac_addr(struct net_device *dev, void *p) { struct sockaddr *addr = p; struct bnxt *bp = netdev_priv(dev); int rc = 0; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; if (ether_addr_equal(addr->sa_data, dev->dev_addr)) return 0; rc = bnxt_approve_mac(bp, addr->sa_data, true); if (rc) return rc; eth_hw_addr_set(dev, addr->sa_data); if (netif_running(dev)) { bnxt_close_nic(bp, false, false); rc = bnxt_open_nic(bp, false, false); } return rc; } /* rtnl_lock held */ static int bnxt_change_mtu(struct net_device *dev, int new_mtu) { struct bnxt *bp = netdev_priv(dev); if (netif_running(dev)) bnxt_close_nic(bp, true, false); dev->mtu = new_mtu; bnxt_set_ring_params(bp); if (netif_running(dev)) return bnxt_open_nic(bp, true, false); return 0; } int bnxt_setup_mq_tc(struct net_device *dev, u8 tc) { struct bnxt *bp = netdev_priv(dev); bool sh = false; int rc; if (tc > bp->max_tc) { netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n", tc, bp->max_tc); return -EINVAL; } if (netdev_get_num_tc(dev) == tc) return 0; if (bp->flags & BNXT_FLAG_SHARED_RINGS) sh = true; rc = bnxt_check_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings, sh, tc, bp->tx_nr_rings_xdp); if (rc) return rc; /* Needs to close the device and do hw resource re-allocations */ if (netif_running(bp->dev)) bnxt_close_nic(bp, true, false); if (tc) { bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc; netdev_set_num_tc(dev, tc); } else { bp->tx_nr_rings = bp->tx_nr_rings_per_tc; netdev_reset_tc(dev); } bp->tx_nr_rings += bp->tx_nr_rings_xdp; bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) : bp->tx_nr_rings + bp->rx_nr_rings; if (netif_running(bp->dev)) return bnxt_open_nic(bp, true, false); return 0; } static int bnxt_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv) { struct bnxt *bp = cb_priv; if (!bnxt_tc_flower_enabled(bp) || !tc_cls_can_offload_and_chain0(bp->dev, type_data)) return -EOPNOTSUPP; switch (type) { case TC_SETUP_CLSFLOWER: return bnxt_tc_setup_flower(bp, bp->pf.fw_fid, type_data); default: return -EOPNOTSUPP; } } LIST_HEAD(bnxt_block_cb_list); static int bnxt_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data) { struct bnxt *bp = netdev_priv(dev); switch (type) { case TC_SETUP_BLOCK: return flow_block_cb_setup_simple(type_data, &bnxt_block_cb_list, bnxt_setup_tc_block_cb, bp, bp, true); case TC_SETUP_QDISC_MQPRIO: { struct tc_mqprio_qopt *mqprio = type_data; mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; return bnxt_setup_mq_tc(dev, mqprio->num_tc); } default: return -EOPNOTSUPP; } } #ifdef CONFIG_RFS_ACCEL static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1, struct bnxt_ntuple_filter *f2) { struct flow_keys *keys1 = &f1->fkeys; struct flow_keys *keys2 = &f2->fkeys; if (keys1->basic.n_proto != keys2->basic.n_proto || keys1->basic.ip_proto != keys2->basic.ip_proto) return false; if (keys1->basic.n_proto == htons(ETH_P_IP)) { if (keys1->addrs.v4addrs.src != keys2->addrs.v4addrs.src || keys1->addrs.v4addrs.dst != keys2->addrs.v4addrs.dst) return false; } else { if (memcmp(&keys1->addrs.v6addrs.src, &keys2->addrs.v6addrs.src, sizeof(keys1->addrs.v6addrs.src)) || memcmp(&keys1->addrs.v6addrs.dst, &keys2->addrs.v6addrs.dst, sizeof(keys1->addrs.v6addrs.dst))) return false; } if (keys1->ports.ports == keys2->ports.ports && keys1->control.flags == keys2->control.flags && ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr) && ether_addr_equal(f1->dst_mac_addr, f2->dst_mac_addr)) return true; return false; } static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, u16 rxq_index, u32 flow_id) { struct bnxt *bp = netdev_priv(dev); struct bnxt_ntuple_filter *fltr, *new_fltr; struct flow_keys *fkeys; struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb); int rc = 0, idx, bit_id, l2_idx = 0; struct hlist_head *head; u32 flags; if (!ether_addr_equal(dev->dev_addr, eth->h_dest)) { struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; int off = 0, j; netif_addr_lock_bh(dev); for (j = 0; j < vnic->uc_filter_count; j++, off += ETH_ALEN) { if (ether_addr_equal(eth->h_dest, vnic->uc_list + off)) { l2_idx = j + 1; break; } } netif_addr_unlock_bh(dev); if (!l2_idx) return -EINVAL; } new_fltr = kzalloc(sizeof(*new_fltr), GFP_ATOMIC); if (!new_fltr) return -ENOMEM; fkeys = &new_fltr->fkeys; if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) { rc = -EPROTONOSUPPORT; goto err_free; } if ((fkeys->basic.n_proto != htons(ETH_P_IP) && fkeys->basic.n_proto != htons(ETH_P_IPV6)) || ((fkeys->basic.ip_proto != IPPROTO_TCP) && (fkeys->basic.ip_proto != IPPROTO_UDP))) { rc = -EPROTONOSUPPORT; goto err_free; } if (fkeys->basic.n_proto == htons(ETH_P_IPV6) && bp->hwrm_spec_code < 0x10601) { rc = -EPROTONOSUPPORT; goto err_free; } flags = fkeys->control.flags; if (((flags & FLOW_DIS_ENCAPSULATION) && bp->hwrm_spec_code < 0x10601) || (flags & FLOW_DIS_IS_FRAGMENT)) { rc = -EPROTONOSUPPORT; goto err_free; } memcpy(new_fltr->dst_mac_addr, eth->h_dest, ETH_ALEN); memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN); idx = skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK; head = &bp->ntp_fltr_hash_tbl[idx]; rcu_read_lock(); hlist_for_each_entry_rcu(fltr, head, hash) { if (bnxt_fltr_match(fltr, new_fltr)) { rc = fltr->sw_id; rcu_read_unlock(); goto err_free; } } rcu_read_unlock(); spin_lock_bh(&bp->ntp_fltr_lock); bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, BNXT_NTP_FLTR_MAX_FLTR, 0); if (bit_id < 0) { spin_unlock_bh(&bp->ntp_fltr_lock); rc = -ENOMEM; goto err_free; } new_fltr->sw_id = (u16)bit_id; new_fltr->flow_id = flow_id; new_fltr->l2_fltr_idx = l2_idx; new_fltr->rxq = rxq_index; hlist_add_head_rcu(&new_fltr->hash, head); bp->ntp_fltr_count++; spin_unlock_bh(&bp->ntp_fltr_lock); set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event); bnxt_queue_sp_work(bp); return new_fltr->sw_id; err_free: kfree(new_fltr); return rc; } static void bnxt_cfg_ntp_filters(struct bnxt *bp) { int i; for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { struct hlist_head *head; struct hlist_node *tmp; struct bnxt_ntuple_filter *fltr; int rc; head = &bp->ntp_fltr_hash_tbl[i]; hlist_for_each_entry_safe(fltr, tmp, head, hash) { bool del = false; if (test_bit(BNXT_FLTR_VALID, &fltr->state)) { if (rps_may_expire_flow(bp->dev, fltr->rxq, fltr->flow_id, fltr->sw_id)) { bnxt_hwrm_cfa_ntuple_filter_free(bp, fltr); del = true; } } else { rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp, fltr); if (rc) del = true; else set_bit(BNXT_FLTR_VALID, &fltr->state); } if (del) { spin_lock_bh(&bp->ntp_fltr_lock); hlist_del_rcu(&fltr->hash); bp->ntp_fltr_count--; spin_unlock_bh(&bp->ntp_fltr_lock); synchronize_rcu(); clear_bit(fltr->sw_id, bp->ntp_fltr_bmap); kfree(fltr); } } } if (test_and_clear_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event)) netdev_info(bp->dev, "Receive PF driver unload event!\n"); } #else static void bnxt_cfg_ntp_filters(struct bnxt *bp) { } #endif /* CONFIG_RFS_ACCEL */ static int bnxt_udp_tunnel_sync(struct net_device *netdev, unsigned int table) { struct bnxt *bp = netdev_priv(netdev); struct udp_tunnel_info ti; unsigned int cmd; udp_tunnel_nic_get_port(netdev, table, 0, &ti); if (ti.type == UDP_TUNNEL_TYPE_VXLAN) cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN; else cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE; if (ti.port) return bnxt_hwrm_tunnel_dst_port_alloc(bp, ti.port, cmd); return bnxt_hwrm_tunnel_dst_port_free(bp, cmd); } static const struct udp_tunnel_nic_info bnxt_udp_tunnels = { .sync_table = bnxt_udp_tunnel_sync, .flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP | UDP_TUNNEL_NIC_INFO_OPEN_ONLY, .tables = { { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, }, { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, }, }, }; static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask, int nlflags) { struct bnxt *bp = netdev_priv(dev); return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bp->br_mode, 0, 0, nlflags, filter_mask, NULL); } static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags, struct netlink_ext_ack *extack) { struct bnxt *bp = netdev_priv(dev); struct nlattr *attr, *br_spec; int rem, rc = 0; if (bp->hwrm_spec_code < 0x10708 || !BNXT_SINGLE_PF(bp)) return -EOPNOTSUPP; br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); if (!br_spec) return -EINVAL; nla_for_each_nested(attr, br_spec, rem) { u16 mode; if (nla_type(attr) != IFLA_BRIDGE_MODE) continue; if (nla_len(attr) < sizeof(mode)) return -EINVAL; mode = nla_get_u16(attr); if (mode == bp->br_mode) break; rc = bnxt_hwrm_set_br_mode(bp, mode); if (!rc) bp->br_mode = mode; break; } return rc; } int bnxt_get_port_parent_id(struct net_device *dev, struct netdev_phys_item_id *ppid) { struct bnxt *bp = netdev_priv(dev); if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV) return -EOPNOTSUPP; /* The PF and it's VF-reps only support the switchdev framework */ if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_DSN_VALID)) return -EOPNOTSUPP; ppid->id_len = sizeof(bp->dsn); memcpy(ppid->id, bp->dsn, ppid->id_len); return 0; } static const struct net_device_ops bnxt_netdev_ops = { .ndo_open = bnxt_open, .ndo_start_xmit = bnxt_start_xmit, .ndo_stop = bnxt_close, .ndo_get_stats64 = bnxt_get_stats64, .ndo_set_rx_mode = bnxt_set_rx_mode, .ndo_eth_ioctl = bnxt_ioctl, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = bnxt_change_mac_addr, .ndo_change_mtu = bnxt_change_mtu, .ndo_fix_features = bnxt_fix_features, .ndo_set_features = bnxt_set_features, .ndo_features_check = bnxt_features_check, .ndo_tx_timeout = bnxt_tx_timeout, #ifdef CONFIG_BNXT_SRIOV .ndo_get_vf_config = bnxt_get_vf_config, .ndo_set_vf_mac = bnxt_set_vf_mac, .ndo_set_vf_vlan = bnxt_set_vf_vlan, .ndo_set_vf_rate = bnxt_set_vf_bw, .ndo_set_vf_link_state = bnxt_set_vf_link_state, .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk, .ndo_set_vf_trust = bnxt_set_vf_trust, #endif .ndo_setup_tc = bnxt_setup_tc, #ifdef CONFIG_RFS_ACCEL .ndo_rx_flow_steer = bnxt_rx_flow_steer, #endif .ndo_bpf = bnxt_xdp, .ndo_xdp_xmit = bnxt_xdp_xmit, .ndo_bridge_getlink = bnxt_bridge_getlink, .ndo_bridge_setlink = bnxt_bridge_setlink, }; static void bnxt_remove_one(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct bnxt *bp = netdev_priv(dev); if (BNXT_PF(bp)) bnxt_sriov_disable(bp); bnxt_ptp_clear(bp); pci_disable_pcie_error_reporting(pdev); unregister_netdev(dev); clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state); /* Flush any pending tasks */ cancel_work_sync(&bp->sp_task); cancel_delayed_work_sync(&bp->fw_reset_task); bp->sp_event = 0; bnxt_dl_fw_reporters_destroy(bp); bnxt_dl_unregister(bp); bnxt_shutdown_tc(bp); bnxt_clear_int_mode(bp); bnxt_hwrm_func_drv_unrgtr(bp); bnxt_free_hwrm_resources(bp); bnxt_ethtool_free(bp); bnxt_dcb_free(bp); kfree(bp->edev); bp->edev = NULL; kfree(bp->ptp_cfg); bp->ptp_cfg = NULL; kfree(bp->fw_health); bp->fw_health = NULL; bnxt_cleanup_pci(bp); bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; kfree(bp->rss_indir_tbl); bp->rss_indir_tbl = NULL; bnxt_free_port_stats(bp); free_netdev(dev); } static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt) { int rc = 0; struct bnxt_link_info *link_info = &bp->link_info; bp->phy_flags = 0; rc = bnxt_hwrm_phy_qcaps(bp); if (rc) { netdev_err(bp->dev, "Probe phy can't get phy capabilities (rc: %x)\n", rc); return rc; } if (bp->phy_flags & BNXT_PHY_FL_NO_FCS) bp->dev->priv_flags |= IFF_SUPP_NOFCS; else bp->dev->priv_flags &= ~IFF_SUPP_NOFCS; if (!fw_dflt) return 0; mutex_lock(&bp->link_lock); rc = bnxt_update_link(bp, false); if (rc) { mutex_unlock(&bp->link_lock); netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n", rc); return rc; } /* Older firmware does not have supported_auto_speeds, so assume * that all supported speeds can be autonegotiated. */ if (link_info->auto_link_speeds && !link_info->support_auto_speeds) link_info->support_auto_speeds = link_info->support_speeds; bnxt_init_ethtool_link_settings(bp); mutex_unlock(&bp->link_lock); return 0; } static int bnxt_get_max_irq(struct pci_dev *pdev) { u16 ctrl; if (!pdev->msix_cap) return 1; pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl); return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1; } static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, int *max_cp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; int max_ring_grps = 0, max_irq; *max_tx = hw_resc->max_tx_rings; *max_rx = hw_resc->max_rx_rings; *max_cp = bnxt_get_max_func_cp_rings_for_en(bp); max_irq = min_t(int, bnxt_get_max_func_irqs(bp) - bnxt_get_ulp_msix_num(bp), hw_resc->max_stat_ctxs - bnxt_get_ulp_stat_ctxs(bp)); if (!(bp->flags & BNXT_FLAG_CHIP_P5)) *max_cp = min_t(int, *max_cp, max_irq); max_ring_grps = hw_resc->max_hw_ring_grps; if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) { *max_cp -= 1; *max_rx -= 2; } if (bp->flags & BNXT_FLAG_AGG_RINGS) *max_rx >>= 1; if (bp->flags & BNXT_FLAG_CHIP_P5) { bnxt_trim_rings(bp, max_rx, max_tx, *max_cp, false); /* On P5 chips, max_cp output param should be available NQs */ *max_cp = max_irq; } *max_rx = min_t(int, *max_rx, max_ring_grps); } int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared) { int rx, tx, cp; _bnxt_get_max_rings(bp, &rx, &tx, &cp); *max_rx = rx; *max_tx = tx; if (!rx || !tx || !cp) return -ENOMEM; return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared); } static int bnxt_get_dflt_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared) { int rc; rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); if (rc && (bp->flags & BNXT_FLAG_AGG_RINGS)) { /* Not enough rings, try disabling agg rings. */ bp->flags &= ~BNXT_FLAG_AGG_RINGS; rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); if (rc) { /* set BNXT_FLAG_AGG_RINGS back for consistency */ bp->flags |= BNXT_FLAG_AGG_RINGS; return rc; } bp->flags |= BNXT_FLAG_NO_AGG_RINGS; bp->dev->hw_features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); bp->dev->features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW); bnxt_set_ring_params(bp); } if (bp->flags & BNXT_FLAG_ROCE_CAP) { int max_cp, max_stat, max_irq; /* Reserve minimum resources for RoCE */ max_cp = bnxt_get_max_func_cp_rings(bp); max_stat = bnxt_get_max_func_stat_ctxs(bp); max_irq = bnxt_get_max_func_irqs(bp); if (max_cp <= BNXT_MIN_ROCE_CP_RINGS || max_irq <= BNXT_MIN_ROCE_CP_RINGS || max_stat <= BNXT_MIN_ROCE_STAT_CTXS) return 0; max_cp -= BNXT_MIN_ROCE_CP_RINGS; max_irq -= BNXT_MIN_ROCE_CP_RINGS; max_stat -= BNXT_MIN_ROCE_STAT_CTXS; max_cp = min_t(int, max_cp, max_irq); max_cp = min_t(int, max_cp, max_stat); rc = bnxt_trim_rings(bp, max_rx, max_tx, max_cp, shared); if (rc) rc = 0; } return rc; } /* In initial default shared ring setting, each shared ring must have a * RX/TX ring pair. */ static void bnxt_trim_dflt_sh_rings(struct bnxt *bp) { bp->cp_nr_rings = min_t(int, bp->tx_nr_rings_per_tc, bp->rx_nr_rings); bp->rx_nr_rings = bp->cp_nr_rings; bp->tx_nr_rings_per_tc = bp->cp_nr_rings; bp->tx_nr_rings = bp->tx_nr_rings_per_tc; } static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh) { int dflt_rings, max_rx_rings, max_tx_rings, rc; if (!bnxt_can_reserve_rings(bp)) return 0; if (sh) bp->flags |= BNXT_FLAG_SHARED_RINGS; dflt_rings = is_kdump_kernel() ? 1 : netif_get_num_default_rss_queues(); /* Reduce default rings on multi-port cards so that total default * rings do not exceed CPU count. */ if (bp->port_count > 1) { int max_rings = max_t(int, num_online_cpus() / bp->port_count, 1); dflt_rings = min_t(int, dflt_rings, max_rings); } rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh); if (rc) return rc; bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings); bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings); if (sh) bnxt_trim_dflt_sh_rings(bp); else bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings; bp->tx_nr_rings = bp->tx_nr_rings_per_tc; rc = __bnxt_reserve_rings(bp); if (rc && rc != -ENODEV) netdev_warn(bp->dev, "Unable to reserve tx rings\n"); bp->tx_nr_rings_per_tc = bp->tx_nr_rings; if (sh) bnxt_trim_dflt_sh_rings(bp); /* Rings may have been trimmed, re-reserve the trimmed rings. */ if (bnxt_need_reserve_rings(bp)) { rc = __bnxt_reserve_rings(bp); if (rc && rc != -ENODEV) netdev_warn(bp->dev, "2nd rings reservation failed.\n"); bp->tx_nr_rings_per_tc = bp->tx_nr_rings; } if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { bp->rx_nr_rings++; bp->cp_nr_rings++; } if (rc) { bp->tx_nr_rings = 0; bp->rx_nr_rings = 0; } return rc; } static int bnxt_init_dflt_ring_mode(struct bnxt *bp) { int rc; if (bp->tx_nr_rings) return 0; bnxt_ulp_irq_stop(bp); bnxt_clear_int_mode(bp); rc = bnxt_set_dflt_rings(bp, true); if (rc) { if (BNXT_VF(bp) && rc == -ENODEV) netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n"); else netdev_err(bp->dev, "Not enough rings available.\n"); goto init_dflt_ring_err; } rc = bnxt_init_int_mode(bp); if (rc) goto init_dflt_ring_err; bp->tx_nr_rings_per_tc = bp->tx_nr_rings; bnxt_set_dflt_rfs(bp); init_dflt_ring_err: bnxt_ulp_irq_restart(bp, rc); return rc; } int bnxt_restore_pf_fw_resources(struct bnxt *bp) { int rc; ASSERT_RTNL(); bnxt_hwrm_func_qcaps(bp); if (netif_running(bp->dev)) __bnxt_close_nic(bp, true, false); bnxt_ulp_irq_stop(bp); bnxt_clear_int_mode(bp); rc = bnxt_init_int_mode(bp); bnxt_ulp_irq_restart(bp, rc); if (netif_running(bp->dev)) { if (rc) dev_close(bp->dev); else rc = bnxt_open_nic(bp, true, false); } return rc; } static int bnxt_init_mac_addr(struct bnxt *bp) { int rc = 0; if (BNXT_PF(bp)) { eth_hw_addr_set(bp->dev, bp->pf.mac_addr); } else { #ifdef CONFIG_BNXT_SRIOV struct bnxt_vf_info *vf = &bp->vf; bool strict_approval = true; if (is_valid_ether_addr(vf->mac_addr)) { /* overwrite netdev dev_addr with admin VF MAC */ eth_hw_addr_set(bp->dev, vf->mac_addr); /* Older PF driver or firmware may not approve this * correctly. */ strict_approval = false; } else { eth_hw_addr_random(bp->dev); } rc = bnxt_approve_mac(bp, bp->dev->dev_addr, strict_approval); #endif } return rc; } static void bnxt_vpd_read_info(struct bnxt *bp) { struct pci_dev *pdev = bp->pdev; unsigned int vpd_size, kw_len; int pos, size; u8 *vpd_data; vpd_data = pci_vpd_alloc(pdev, &vpd_size); if (IS_ERR(vpd_data)) { pci_warn(pdev, "Unable to read VPD\n"); return; } pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size, PCI_VPD_RO_KEYWORD_PARTNO, &kw_len); if (pos < 0) goto read_sn; size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1); memcpy(bp->board_partno, &vpd_data[pos], size); read_sn: pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size, PCI_VPD_RO_KEYWORD_SERIALNO, &kw_len); if (pos < 0) goto exit; size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1); memcpy(bp->board_serialno, &vpd_data[pos], size); exit: kfree(vpd_data); } static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[]) { struct pci_dev *pdev = bp->pdev; u64 qword; qword = pci_get_dsn(pdev); if (!qword) { netdev_info(bp->dev, "Unable to read adapter's DSN\n"); return -EOPNOTSUPP; } put_unaligned_le64(qword, dsn); bp->flags |= BNXT_FLAG_DSN_VALID; return 0; } static int bnxt_map_db_bar(struct bnxt *bp) { if (!bp->db_size) return -ENODEV; bp->bar1 = pci_iomap(bp->pdev, 2, bp->db_size); if (!bp->bar1) return -ENOMEM; return 0; } void bnxt_print_device_info(struct bnxt *bp) { netdev_info(bp->dev, "%s found at mem %lx, node addr %pM\n", board_info[bp->board_idx].name, (long)pci_resource_start(bp->pdev, 0), bp->dev->dev_addr); pcie_print_link_status(bp->pdev); } static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *dev; struct bnxt *bp; int rc, max_irqs; if (pci_is_bridge(pdev)) return -ENODEV; /* Clear any pending DMA transactions from crash kernel * while loading driver in capture kernel. */ if (is_kdump_kernel()) { pci_clear_master(pdev); pcie_flr(pdev); } max_irqs = bnxt_get_max_irq(pdev); dev = alloc_etherdev_mq(sizeof(*bp), max_irqs); if (!dev) return -ENOMEM; bp = netdev_priv(dev); bp->board_idx = ent->driver_data; bp->msg_enable = BNXT_DEF_MSG_ENABLE; bnxt_set_max_func_irqs(bp, max_irqs); if (bnxt_vf_pciid(bp->board_idx)) bp->flags |= BNXT_FLAG_VF; /* No devlink port registration in case of a VF */ if (BNXT_PF(bp)) SET_NETDEV_DEVLINK_PORT(dev, &bp->dl_port); if (pdev->msix_cap) bp->flags |= BNXT_FLAG_MSIX_CAP; rc = bnxt_init_board(pdev, dev); if (rc < 0) goto init_err_free; dev->netdev_ops = &bnxt_netdev_ops; dev->watchdog_timeo = BNXT_TX_TIMEOUT; dev->ethtool_ops = &bnxt_ethtool_ops; pci_set_drvdata(pdev, dev); rc = bnxt_alloc_hwrm_resources(bp); if (rc) goto init_err_pci_clean; mutex_init(&bp->hwrm_cmd_lock); mutex_init(&bp->link_lock); rc = bnxt_fw_init_one_p1(bp); if (rc) goto init_err_pci_clean; if (BNXT_PF(bp)) bnxt_vpd_read_info(bp); if (BNXT_CHIP_P5(bp)) { bp->flags |= BNXT_FLAG_CHIP_P5; if (BNXT_CHIP_SR2(bp)) bp->flags |= BNXT_FLAG_CHIP_SR2; } rc = bnxt_alloc_rss_indir_tbl(bp); if (rc) goto init_err_pci_clean; rc = bnxt_fw_init_one_p2(bp); if (rc) goto init_err_pci_clean; rc = bnxt_map_db_bar(bp); if (rc) { dev_err(&pdev->dev, "Cannot map doorbell BAR rc = %d, aborting\n", rc); goto init_err_pci_clean; } dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH | NETIF_F_RXCSUM | NETIF_F_GRO; if (BNXT_SUPPORTS_TPA(bp)) dev->hw_features |= NETIF_F_LRO; dev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL; dev->udp_tunnel_nic_info = &bnxt_udp_tunnels; dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM; dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA; if (bp->fw_cap & BNXT_FW_CAP_VLAN_RX_STRIP) dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_RX; if (bp->fw_cap & BNXT_FW_CAP_VLAN_TX_INSERT) dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_TX; if (BNXT_SUPPORTS_TPA(bp)) dev->hw_features |= NETIF_F_GRO_HW; dev->features |= dev->hw_features | NETIF_F_HIGHDMA; if (dev->features & NETIF_F_GRO_HW) dev->features &= ~NETIF_F_LRO; dev->priv_flags |= IFF_UNICAST_FLT; netif_set_tso_max_size(dev, GSO_MAX_SIZE); #ifdef CONFIG_BNXT_SRIOV init_waitqueue_head(&bp->sriov_cfg_wait); #endif if (BNXT_SUPPORTS_TPA(bp)) { bp->gro_func = bnxt_gro_func_5730x; if (BNXT_CHIP_P4(bp)) bp->gro_func = bnxt_gro_func_5731x; else if (BNXT_CHIP_P5(bp)) bp->gro_func = bnxt_gro_func_5750x; } if (!BNXT_CHIP_P4_PLUS(bp)) bp->flags |= BNXT_FLAG_DOUBLE_DB; rc = bnxt_init_mac_addr(bp); if (rc) { dev_err(&pdev->dev, "Unable to initialize mac address.\n"); rc = -EADDRNOTAVAIL; goto init_err_pci_clean; } if (BNXT_PF(bp)) { /* Read the adapter's DSN to use as the eswitch switch_id */ rc = bnxt_pcie_dsn_get(bp, bp->dsn); } /* MTU range: 60 - FW defined max */ dev->min_mtu = ETH_ZLEN; dev->max_mtu = bp->max_mtu; rc = bnxt_probe_phy(bp, true); if (rc) goto init_err_pci_clean; bnxt_set_rx_skb_mode(bp, false); bnxt_set_tpa_flags(bp); bnxt_set_ring_params(bp); rc = bnxt_set_dflt_rings(bp, true); if (rc) { if (BNXT_VF(bp) && rc == -ENODEV) { netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n"); } else { netdev_err(bp->dev, "Not enough rings available.\n"); rc = -ENOMEM; } goto init_err_pci_clean; } bnxt_fw_init_one_p3(bp); bnxt_init_dflt_coal(bp); if (dev->hw_features & BNXT_HW_FEATURE_VLAN_ALL_RX) bp->flags |= BNXT_FLAG_STRIP_VLAN; rc = bnxt_init_int_mode(bp); if (rc) goto init_err_pci_clean; /* No TC has been set yet and rings may have been trimmed due to * limited MSIX, so we re-initialize the TX rings per TC. */ bp->tx_nr_rings_per_tc = bp->tx_nr_rings; if (BNXT_PF(bp)) { if (!bnxt_pf_wq) { bnxt_pf_wq = create_singlethread_workqueue("bnxt_pf_wq"); if (!bnxt_pf_wq) { dev_err(&pdev->dev, "Unable to create workqueue.\n"); rc = -ENOMEM; goto init_err_pci_clean; } } rc = bnxt_init_tc(bp); if (rc) netdev_err(dev, "Failed to initialize TC flower offload, err = %d.\n", rc); } bnxt_inv_fw_health_reg(bp); rc = bnxt_dl_register(bp); if (rc) goto init_err_dl; rc = register_netdev(dev); if (rc) goto init_err_cleanup; bnxt_dl_fw_reporters_create(bp); bnxt_print_device_info(bp); pci_save_state(pdev); return 0; init_err_cleanup: bnxt_dl_unregister(bp); init_err_dl: bnxt_shutdown_tc(bp); bnxt_clear_int_mode(bp); init_err_pci_clean: bnxt_hwrm_func_drv_unrgtr(bp); bnxt_free_hwrm_resources(bp); bnxt_ethtool_free(bp); bnxt_ptp_clear(bp); kfree(bp->ptp_cfg); bp->ptp_cfg = NULL; kfree(bp->fw_health); bp->fw_health = NULL; bnxt_cleanup_pci(bp); bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; kfree(bp->rss_indir_tbl); bp->rss_indir_tbl = NULL; init_err_free: free_netdev(dev); return rc; } static void bnxt_shutdown(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct bnxt *bp; if (!dev) return; rtnl_lock(); bp = netdev_priv(dev); if (!bp) goto shutdown_exit; if (netif_running(dev)) dev_close(dev); bnxt_ulp_shutdown(bp); bnxt_clear_int_mode(bp); pci_disable_device(pdev); if (system_state == SYSTEM_POWER_OFF) { pci_wake_from_d3(pdev, bp->wol); pci_set_power_state(pdev, PCI_D3hot); } shutdown_exit: rtnl_unlock(); } #ifdef CONFIG_PM_SLEEP static int bnxt_suspend(struct device *device) { struct net_device *dev = dev_get_drvdata(device); struct bnxt *bp = netdev_priv(dev); int rc = 0; rtnl_lock(); bnxt_ulp_stop(bp); if (netif_running(dev)) { netif_device_detach(dev); rc = bnxt_close(dev); } bnxt_hwrm_func_drv_unrgtr(bp); pci_disable_device(bp->pdev); bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; rtnl_unlock(); return rc; } static int bnxt_resume(struct device *device) { struct net_device *dev = dev_get_drvdata(device); struct bnxt *bp = netdev_priv(dev); int rc = 0; rtnl_lock(); rc = pci_enable_device(bp->pdev); if (rc) { netdev_err(dev, "Cannot re-enable PCI device during resume, err = %d\n", rc); goto resume_exit; } pci_set_master(bp->pdev); if (bnxt_hwrm_ver_get(bp)) { rc = -ENODEV; goto resume_exit; } rc = bnxt_hwrm_func_reset(bp); if (rc) { rc = -EBUSY; goto resume_exit; } rc = bnxt_hwrm_func_qcaps(bp); if (rc) goto resume_exit; if (bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false)) { rc = -ENODEV; goto resume_exit; } bnxt_get_wol_settings(bp); if (netif_running(dev)) { rc = bnxt_open(dev); if (!rc) netif_device_attach(dev); } resume_exit: bnxt_ulp_start(bp, rc); if (!rc) bnxt_reenable_sriov(bp); rtnl_unlock(); return rc; } static SIMPLE_DEV_PM_OPS(bnxt_pm_ops, bnxt_suspend, bnxt_resume); #define BNXT_PM_OPS (&bnxt_pm_ops) #else #define BNXT_PM_OPS NULL #endif /* CONFIG_PM_SLEEP */ /** * bnxt_io_error_detected - called when PCI error is detected * @pdev: Pointer to PCI device * @state: The current pci connection state * * This function is called after a PCI bus error affecting * this device has been detected. */ static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { struct net_device *netdev = pci_get_drvdata(pdev); struct bnxt *bp = netdev_priv(netdev); netdev_info(netdev, "PCI I/O error detected\n"); rtnl_lock(); netif_device_detach(netdev); bnxt_ulp_stop(bp); if (state == pci_channel_io_perm_failure) { rtnl_unlock(); return PCI_ERS_RESULT_DISCONNECT; } if (state == pci_channel_io_frozen) set_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, &bp->state); if (netif_running(netdev)) bnxt_close(netdev); if (pci_is_enabled(pdev)) pci_disable_device(pdev); bnxt_free_ctx_mem(bp); kfree(bp->ctx); bp->ctx = NULL; rtnl_unlock(); /* Request a slot slot reset. */ return PCI_ERS_RESULT_NEED_RESET; } /** * bnxt_io_slot_reset - called after the pci bus has been reset. * @pdev: Pointer to PCI device * * Restart the card from scratch, as if from a cold-boot. * At this point, the card has exprienced a hard reset, * followed by fixups by BIOS, and has its config space * set up identically to what it was at cold boot. */ static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev) { pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT; struct net_device *netdev = pci_get_drvdata(pdev); struct bnxt *bp = netdev_priv(netdev); int retry = 0; int err = 0; int off; netdev_info(bp->dev, "PCI Slot Reset\n"); rtnl_lock(); if (pci_enable_device(pdev)) { dev_err(&pdev->dev, "Cannot re-enable PCI device after reset.\n"); } else { pci_set_master(pdev); /* Upon fatal error, our device internal logic that latches to * BAR value is getting reset and will restore only upon * rewritting the BARs. * * As pci_restore_state() does not re-write the BARs if the * value is same as saved value earlier, driver needs to * write the BARs to 0 to force restore, in case of fatal error. */ if (test_and_clear_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, &bp->state)) { for (off = PCI_BASE_ADDRESS_0; off <= PCI_BASE_ADDRESS_5; off += 4) pci_write_config_dword(bp->pdev, off, 0); } pci_restore_state(pdev); pci_save_state(pdev); bnxt_inv_fw_health_reg(bp); bnxt_try_map_fw_health_reg(bp); /* In some PCIe AER scenarios, firmware may take up to * 10 seconds to become ready in the worst case. */ do { err = bnxt_try_recover_fw(bp); if (!err) break; retry++; } while (retry < BNXT_FW_SLOT_RESET_RETRY); if (err) { dev_err(&pdev->dev, "Firmware not ready\n"); goto reset_exit; } err = bnxt_hwrm_func_reset(bp); if (!err) result = PCI_ERS_RESULT_RECOVERED; bnxt_ulp_irq_stop(bp); bnxt_clear_int_mode(bp); err = bnxt_init_int_mode(bp); bnxt_ulp_irq_restart(bp, err); } reset_exit: bnxt_clear_reservations(bp, true); rtnl_unlock(); return result; } /** * bnxt_io_resume - called when traffic can start flowing again. * @pdev: Pointer to PCI device * * This callback is called when the error recovery driver tells * us that its OK to resume normal operation. */ static void bnxt_io_resume(struct pci_dev *pdev) { struct net_device *netdev = pci_get_drvdata(pdev); struct bnxt *bp = netdev_priv(netdev); int err; netdev_info(bp->dev, "PCI Slot Resume\n"); rtnl_lock(); err = bnxt_hwrm_func_qcaps(bp); if (!err && netif_running(netdev)) err = bnxt_open(netdev); bnxt_ulp_start(bp, err); if (!err) { bnxt_reenable_sriov(bp); netif_device_attach(netdev); } rtnl_unlock(); } static const struct pci_error_handlers bnxt_err_handler = { .error_detected = bnxt_io_error_detected, .slot_reset = bnxt_io_slot_reset, .resume = bnxt_io_resume }; static struct pci_driver bnxt_pci_driver = { .name = DRV_MODULE_NAME, .id_table = bnxt_pci_tbl, .probe = bnxt_init_one, .remove = bnxt_remove_one, .shutdown = bnxt_shutdown, .driver.pm = BNXT_PM_OPS, .err_handler = &bnxt_err_handler, #if defined(CONFIG_BNXT_SRIOV) .sriov_configure = bnxt_sriov_configure, #endif }; static int __init bnxt_init(void) { int err; bnxt_debug_init(); err = pci_register_driver(&bnxt_pci_driver); if (err) { bnxt_debug_exit(); return err; } return 0; } static void __exit bnxt_exit(void) { pci_unregister_driver(&bnxt_pci_driver); if (bnxt_pf_wq) destroy_workqueue(bnxt_pf_wq); bnxt_debug_exit(); } module_init(bnxt_init); module_exit(bnxt_exit);
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