| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Kumar Gala | 1947 | 44.26% | 5 | 5.81% |
| Sandeep Gopalpet | 849 | 19.30% | 9 | 10.47% |
| Claudiu Manoil | 803 | 18.25% | 23 | 26.74% |
| Andy Fleming | 191 | 4.34% | 9 | 10.47% |
| Sebastian Poehn | 169 | 3.84% | 2 | 2.33% |
| Matei Pavaluca | 139 | 3.16% | 1 | 1.16% |
| Dai Haruki | 79 | 1.80% | 7 | 8.14% |
| Scott Wood | 51 | 1.16% | 2 | 2.33% |
| Anton Vorontsov | 48 | 1.09% | 4 | 4.65% |
| Eric Dumazet | 19 | 0.43% | 1 | 1.16% |
| Manfred Rudigier | 17 | 0.39% | 3 | 3.49% |
| Paul Gortmaker | 15 | 0.34% | 2 | 2.33% |
| Ben Menchaca | 14 | 0.32% | 1 | 1.16% |
| Michał Mirosław | 12 | 0.27% | 2 | 2.33% |
| Kapil Juneja | 10 | 0.23% | 1 | 1.16% |
| Alex Dubov | 7 | 0.16% | 1 | 1.16% |
| Kim Phillips | 4 | 0.09% | 1 | 1.16% |
| Hamish Martin | 4 | 0.09% | 1 | 1.16% |
| Grant C. Likely | 4 | 0.09% | 1 | 1.16% |
| Jiajun Wu | 3 | 0.07% | 1 | 1.16% |
| Stephen Hemminger | 2 | 0.05% | 1 | 1.16% |
| Sebastian Andrzej Siewior | 2 | 0.05% | 1 | 1.16% |
| Adrian Bunk | 2 | 0.05% | 1 | 1.16% |
| Thomas Gleixner | 2 | 0.05% | 1 | 1.16% |
| Joe Perches | 2 | 0.05% | 1 | 1.16% |
| Sebastian Pöhn | 1 | 0.02% | 1 | 1.16% |
| Lucas De Marchi | 1 | 0.02% | 1 | 1.16% |
| Xiaotian Feng | 1 | 0.02% | 1 | 1.16% |
| Linus Torvalds | 1 | 0.02% | 1 | 1.16% |
| Total | 4399 | 86 |
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * drivers/net/ethernet/freescale/gianfar.h * * Gianfar Ethernet Driver * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560 * Based on 8260_io/fcc_enet.c * * Author: Andy Fleming * Maintainer: Kumar Gala * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> * * Copyright 2002-2009, 2011-2013 Freescale Semiconductor, Inc. * * Still left to do: * -Add support for module parameters * -Add patch for ethtool phys id */ #ifndef __GIANFAR_H #define __GIANFAR_H #include <linux/kernel.h> #include <linux/sched.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <linux/spinlock.h> #include <linux/mm.h> #include <linux/mii.h> #include <linux/phy.h> #include <asm/io.h> #include <asm/irq.h> #include <linux/uaccess.h> #include <linux/module.h> #include <linux/crc32.h> #include <linux/workqueue.h> #include <linux/ethtool.h> struct ethtool_flow_spec_container { struct ethtool_rx_flow_spec fs; struct list_head list; }; struct ethtool_rx_list { struct list_head list; unsigned int count; }; /* The maximum number of packets to be handled in one call of gfar_poll */ #define GFAR_DEV_WEIGHT 64 /* Length for FCB */ #define GMAC_FCB_LEN 8 /* Length for TxPAL */ #define GMAC_TXPAL_LEN 16 /* Default padding amount */ #define DEFAULT_PADDING 2 /* Number of bytes to align the rx bufs to */ #define RXBUF_ALIGNMENT 64 #define DRV_NAME "gfar-enet" /* MAXIMUM NUMBER OF QUEUES SUPPORTED */ #define MAX_TX_QS 0x8 #define MAX_RX_QS 0x8 /* MAXIMUM NUMBER OF GROUPS SUPPORTED */ #define MAXGROUPS 0x2 /* These need to be powers of 2 for this driver */ #define DEFAULT_TX_RING_SIZE 256 #define DEFAULT_RX_RING_SIZE 256 #define GFAR_RX_BUFF_ALLOC 16 #define GFAR_RX_MAX_RING_SIZE 256 #define GFAR_TX_MAX_RING_SIZE 256 #define FBTHR_SHIFT 24 #define DEFAULT_RX_LFC_THR 16 #define DEFAULT_LFC_PTVVAL 4 #define GFAR_RXB_TRUESIZE 2048 #define GFAR_SKBFRAG_OVR (RXBUF_ALIGNMENT \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) #define GFAR_RXB_SIZE rounddown(GFAR_RXB_TRUESIZE - GFAR_SKBFRAG_OVR, 64) #define GFAR_SKBFRAG_SIZE (GFAR_RXB_SIZE + GFAR_SKBFRAG_OVR) #define TX_RING_MOD_MASK(size) (size-1) #define RX_RING_MOD_MASK(size) (size-1) #define GFAR_JUMBO_FRAME_SIZE 9600 #define DEFAULT_FIFO_TX_THR 0x100 #define DEFAULT_FIFO_TX_STARVE 0x40 #define DEFAULT_FIFO_TX_STARVE_OFF 0x80 /* The number of Exact Match registers */ #define GFAR_EM_NUM 15 /* Latency of interface clock in nanoseconds */ /* Interface clock latency , in this case, means the * time described by a value of 1 in the interrupt * coalescing registers' time fields. Since those fields * refer to the time it takes for 64 clocks to pass, the * latencies are as such: * GBIT = 125MHz => 8ns/clock => 8*64 ns / tick * 100 = 25 MHz => 40ns/clock => 40*64 ns / tick * 10 = 2.5 MHz => 400ns/clock => 400*64 ns / tick */ #define GFAR_GBIT_TIME 512 #define GFAR_100_TIME 2560 #define GFAR_10_TIME 25600 #define DEFAULT_TX_COALESCE 1 #define DEFAULT_TXCOUNT 16 #define DEFAULT_TXTIME 21 #define DEFAULT_RXTIME 21 #define DEFAULT_RX_COALESCE 0 #define DEFAULT_RXCOUNT 0 /* TBI register addresses */ #define MII_TBICON 0x11 /* TBICON register bit fields */ #define TBICON_CLK_SELECT 0x0020 /* MAC register bits */ #define MACCFG1_SOFT_RESET 0x80000000 #define MACCFG1_RESET_RX_MC 0x00080000 #define MACCFG1_RESET_TX_MC 0x00040000 #define MACCFG1_RESET_RX_FUN 0x00020000 #define MACCFG1_RESET_TX_FUN 0x00010000 #define MACCFG1_LOOPBACK 0x00000100 #define MACCFG1_RX_FLOW 0x00000020 #define MACCFG1_TX_FLOW 0x00000010 #define MACCFG1_SYNCD_RX_EN 0x00000008 #define MACCFG1_RX_EN 0x00000004 #define MACCFG1_SYNCD_TX_EN 0x00000002 #define MACCFG1_TX_EN 0x00000001 #define MACCFG2_INIT_SETTINGS 0x00007205 #define MACCFG2_FULL_DUPLEX 0x00000001 #define MACCFG2_IF 0x00000300 #define MACCFG2_MII 0x00000100 #define MACCFG2_GMII 0x00000200 #define MACCFG2_HUGEFRAME 0x00000020 #define MACCFG2_LENGTHCHECK 0x00000010 #define MACCFG2_MPEN 0x00000008 #define ECNTRL_FIFM 0x00008000 #define ECNTRL_INIT_SETTINGS 0x00001000 #define ECNTRL_TBI_MODE 0x00000020 #define ECNTRL_REDUCED_MODE 0x00000010 #define ECNTRL_R100 0x00000008 #define ECNTRL_REDUCED_MII_MODE 0x00000004 #define ECNTRL_SGMII_MODE 0x00000002 #define MINFLR_INIT_SETTINGS 0x00000040 /* Tqueue control */ #define TQUEUE_EN0 0x00008000 #define TQUEUE_EN1 0x00004000 #define TQUEUE_EN2 0x00002000 #define TQUEUE_EN3 0x00001000 #define TQUEUE_EN4 0x00000800 #define TQUEUE_EN5 0x00000400 #define TQUEUE_EN6 0x00000200 #define TQUEUE_EN7 0x00000100 #define TQUEUE_EN_ALL 0x0000FF00 #define TR03WT_WT0_MASK 0xFF000000 #define TR03WT_WT1_MASK 0x00FF0000 #define TR03WT_WT2_MASK 0x0000FF00 #define TR03WT_WT3_MASK 0x000000FF #define TR47WT_WT4_MASK 0xFF000000 #define TR47WT_WT5_MASK 0x00FF0000 #define TR47WT_WT6_MASK 0x0000FF00 #define TR47WT_WT7_MASK 0x000000FF /* Rqueue control */ #define RQUEUE_EX0 0x00800000 #define RQUEUE_EX1 0x00400000 #define RQUEUE_EX2 0x00200000 #define RQUEUE_EX3 0x00100000 #define RQUEUE_EX4 0x00080000 #define RQUEUE_EX5 0x00040000 #define RQUEUE_EX6 0x00020000 #define RQUEUE_EX7 0x00010000 #define RQUEUE_EX_ALL 0x00FF0000 #define RQUEUE_EN0 0x00000080 #define RQUEUE_EN1 0x00000040 #define RQUEUE_EN2 0x00000020 #define RQUEUE_EN3 0x00000010 #define RQUEUE_EN4 0x00000008 #define RQUEUE_EN5 0x00000004 #define RQUEUE_EN6 0x00000002 #define RQUEUE_EN7 0x00000001 #define RQUEUE_EN_ALL 0x000000FF /* Init to do tx snooping for buffers and descriptors */ #define DMACTRL_INIT_SETTINGS 0x000000c3 #define DMACTRL_GRS 0x00000010 #define DMACTRL_GTS 0x00000008 #define TSTAT_CLEAR_THALT_ALL 0xFF000000 #define TSTAT_CLEAR_THALT 0x80000000 #define TSTAT_CLEAR_THALT0 0x80000000 #define TSTAT_CLEAR_THALT1 0x40000000 #define TSTAT_CLEAR_THALT2 0x20000000 #define TSTAT_CLEAR_THALT3 0x10000000 #define TSTAT_CLEAR_THALT4 0x08000000 #define TSTAT_CLEAR_THALT5 0x04000000 #define TSTAT_CLEAR_THALT6 0x02000000 #define TSTAT_CLEAR_THALT7 0x01000000 /* Interrupt coalescing macros */ #define IC_ICEN 0x80000000 #define IC_ICFT_MASK 0x1fe00000 #define IC_ICFT_SHIFT 21 #define mk_ic_icft(x) \ (((unsigned int)x << IC_ICFT_SHIFT)&IC_ICFT_MASK) #define IC_ICTT_MASK 0x0000ffff #define mk_ic_ictt(x) (x&IC_ICTT_MASK) #define mk_ic_value(count, time) (IC_ICEN | \ mk_ic_icft(count) | \ mk_ic_ictt(time)) #define get_icft_value(ic) (((unsigned long)ic & IC_ICFT_MASK) >> \ IC_ICFT_SHIFT) #define get_ictt_value(ic) ((unsigned long)ic & IC_ICTT_MASK) #define DEFAULT_TXIC mk_ic_value(DEFAULT_TXCOUNT, DEFAULT_TXTIME) #define DEFAULT_RXIC mk_ic_value(DEFAULT_RXCOUNT, DEFAULT_RXTIME) #define RCTRL_TS_ENABLE 0x01000000 #define RCTRL_PAL_MASK 0x001f0000 #define RCTRL_LFC 0x00004000 #define RCTRL_VLEX 0x00002000 #define RCTRL_FILREN 0x00001000 #define RCTRL_GHTX 0x00000400 #define RCTRL_IPCSEN 0x00000200 #define RCTRL_TUCSEN 0x00000100 #define RCTRL_PRSDEP_MASK 0x000000c0 #define RCTRL_PRSDEP_INIT 0x000000c0 #define RCTRL_PRSFM 0x00000020 #define RCTRL_PROM 0x00000008 #define RCTRL_EMEN 0x00000002 #define RCTRL_REQ_PARSER (RCTRL_VLEX | RCTRL_IPCSEN | \ RCTRL_TUCSEN | RCTRL_FILREN) #define RCTRL_CHECKSUMMING (RCTRL_IPCSEN | RCTRL_TUCSEN | \ RCTRL_PRSDEP_INIT) #define RCTRL_EXTHASH (RCTRL_GHTX) #define RCTRL_VLAN (RCTRL_PRSDEP_INIT) #define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK) #define RSTAT_CLEAR_RHALT 0x00800000 #define RSTAT_CLEAR_RXF0 0x00000080 #define RSTAT_RXF_MASK 0x000000ff #define TCTRL_IPCSEN 0x00004000 #define TCTRL_TUCSEN 0x00002000 #define TCTRL_VLINS 0x00001000 #define TCTRL_THDF 0x00000800 #define TCTRL_RFCPAUSE 0x00000010 #define TCTRL_TFCPAUSE 0x00000008 #define TCTRL_TXSCHED_MASK 0x00000006 #define TCTRL_TXSCHED_INIT 0x00000000 /* priority scheduling */ #define TCTRL_TXSCHED_PRIO 0x00000002 /* weighted round-robin scheduling (WRRS) */ #define TCTRL_TXSCHED_WRRS 0x00000004 /* default WRRS weight and policy setting, * tailored to the tr03wt and tr47wt registers: * equal weight for all Tx Qs, measured in 64byte units */ #define DEFAULT_WRRS_WEIGHT 0x18181818 #define TCTRL_INIT_CSUM (TCTRL_TUCSEN | TCTRL_IPCSEN) #define IEVENT_INIT_CLEAR 0xffffffff #define IEVENT_BABR 0x80000000 #define IEVENT_RXC 0x40000000 #define IEVENT_BSY 0x20000000 #define IEVENT_EBERR 0x10000000 #define IEVENT_MSRO 0x04000000 #define IEVENT_GTSC 0x02000000 #define IEVENT_BABT 0x01000000 #define IEVENT_TXC 0x00800000 #define IEVENT_TXE 0x00400000 #define IEVENT_TXB 0x00200000 #define IEVENT_TXF 0x00100000 #define IEVENT_LC 0x00040000 #define IEVENT_CRL 0x00020000 #define IEVENT_XFUN 0x00010000 #define IEVENT_RXB0 0x00008000 #define IEVENT_MAG 0x00000800 #define IEVENT_GRSC 0x00000100 #define IEVENT_RXF0 0x00000080 #define IEVENT_FGPI 0x00000010 #define IEVENT_FIR 0x00000008 #define IEVENT_FIQ 0x00000004 #define IEVENT_DPE 0x00000002 #define IEVENT_PERR 0x00000001 #define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0 | IEVENT_BSY) #define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF) #define IEVENT_RTX_MASK (IEVENT_RX_MASK | IEVENT_TX_MASK) #define IEVENT_ERR_MASK \ (IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \ IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \ | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \ | IEVENT_MAG | IEVENT_BABR) #define IMASK_INIT_CLEAR 0x00000000 #define IMASK_BABR 0x80000000 #define IMASK_RXC 0x40000000 #define IMASK_BSY 0x20000000 #define IMASK_EBERR 0x10000000 #define IMASK_MSRO 0x04000000 #define IMASK_GTSC 0x02000000 #define IMASK_BABT 0x01000000 #define IMASK_TXC 0x00800000 #define IMASK_TXEEN 0x00400000 #define IMASK_TXBEN 0x00200000 #define IMASK_TXFEN 0x00100000 #define IMASK_LC 0x00040000 #define IMASK_CRL 0x00020000 #define IMASK_XFUN 0x00010000 #define IMASK_RXB0 0x00008000 #define IMASK_MAG 0x00000800 #define IMASK_GRSC 0x00000100 #define IMASK_RXFEN0 0x00000080 #define IMASK_FGPI 0x00000010 #define IMASK_FIR 0x00000008 #define IMASK_FIQ 0x00000004 #define IMASK_DPE 0x00000002 #define IMASK_PERR 0x00000001 #define IMASK_DEFAULT (IMASK_TXEEN | IMASK_TXFEN | IMASK_TXBEN | \ IMASK_RXFEN0 | IMASK_BSY | IMASK_EBERR | IMASK_BABR | \ IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \ | IMASK_PERR) #define IMASK_RX_DEFAULT (IMASK_RXFEN0 | IMASK_BSY) #define IMASK_TX_DEFAULT (IMASK_TXFEN | IMASK_TXBEN) #define IMASK_RX_DISABLED ((~(IMASK_RX_DEFAULT)) & IMASK_DEFAULT) #define IMASK_TX_DISABLED ((~(IMASK_TX_DEFAULT)) & IMASK_DEFAULT) /* Attribute fields */ /* This enables rx snooping for buffers and descriptors */ #define ATTR_BDSTASH 0x00000800 #define ATTR_BUFSTASH 0x00004000 #define ATTR_SNOOPING 0x000000c0 #define ATTR_INIT_SETTINGS ATTR_SNOOPING #define ATTRELI_INIT_SETTINGS 0x0 #define ATTRELI_EL_MASK 0x3fff0000 #define ATTRELI_EL(x) (x << 16) #define ATTRELI_EI_MASK 0x00003fff #define ATTRELI_EI(x) (x) #define BD_LFLAG(flags) ((flags) << 16) #define BD_LENGTH_MASK 0x0000ffff #define FPR_FILER_MASK 0xFFFFFFFF #define MAX_FILER_IDX 0xFF /* This default RIR value directly corresponds * to the 3-bit hash value generated */ #define DEFAULT_8RXQ_RIR0 0x05397700 /* Map even hash values to Q0, and odd ones to Q1 */ #define DEFAULT_2RXQ_RIR0 0x04104100 /* RQFCR register bits */ #define RQFCR_GPI 0x80000000 #define RQFCR_HASHTBL_Q 0x00000000 #define RQFCR_HASHTBL_0 0x00020000 #define RQFCR_HASHTBL_1 0x00040000 #define RQFCR_HASHTBL_2 0x00060000 #define RQFCR_HASHTBL_3 0x00080000 #define RQFCR_HASH 0x00010000 #define RQFCR_QUEUE 0x0000FC00 #define RQFCR_CLE 0x00000200 #define RQFCR_RJE 0x00000100 #define RQFCR_AND 0x00000080 #define RQFCR_CMP_EXACT 0x00000000 #define RQFCR_CMP_MATCH 0x00000020 #define RQFCR_CMP_NOEXACT 0x00000040 #define RQFCR_CMP_NOMATCH 0x00000060 /* RQFCR PID values */ #define RQFCR_PID_MASK 0x00000000 #define RQFCR_PID_PARSE 0x00000001 #define RQFCR_PID_ARB 0x00000002 #define RQFCR_PID_DAH 0x00000003 #define RQFCR_PID_DAL 0x00000004 #define RQFCR_PID_SAH 0x00000005 #define RQFCR_PID_SAL 0x00000006 #define RQFCR_PID_ETY 0x00000007 #define RQFCR_PID_VID 0x00000008 #define RQFCR_PID_PRI 0x00000009 #define RQFCR_PID_TOS 0x0000000A #define RQFCR_PID_L4P 0x0000000B #define RQFCR_PID_DIA 0x0000000C #define RQFCR_PID_SIA 0x0000000D #define RQFCR_PID_DPT 0x0000000E #define RQFCR_PID_SPT 0x0000000F /* RQFPR when PID is 0x0001 */ #define RQFPR_HDR_GE_512 0x00200000 #define RQFPR_LERR 0x00100000 #define RQFPR_RAR 0x00080000 #define RQFPR_RARQ 0x00040000 #define RQFPR_AR 0x00020000 #define RQFPR_ARQ 0x00010000 #define RQFPR_EBC 0x00008000 #define RQFPR_VLN 0x00004000 #define RQFPR_CFI 0x00002000 #define RQFPR_JUM 0x00001000 #define RQFPR_IPF 0x00000800 #define RQFPR_FIF 0x00000400 #define RQFPR_IPV4 0x00000200 #define RQFPR_IPV6 0x00000100 #define RQFPR_ICC 0x00000080 #define RQFPR_ICV 0x00000040 #define RQFPR_TCP 0x00000020 #define RQFPR_UDP 0x00000010 #define RQFPR_TUC 0x00000008 #define RQFPR_TUV 0x00000004 #define RQFPR_PER 0x00000002 #define RQFPR_EER 0x00000001 /* TxBD status field bits */ #define TXBD_READY 0x8000 #define TXBD_PADCRC 0x4000 #define TXBD_WRAP 0x2000 #define TXBD_INTERRUPT 0x1000 #define TXBD_LAST 0x0800 #define TXBD_CRC 0x0400 #define TXBD_DEF 0x0200 #define TXBD_HUGEFRAME 0x0080 #define TXBD_LATECOLLISION 0x0080 #define TXBD_RETRYLIMIT 0x0040 #define TXBD_RETRYCOUNTMASK 0x003c #define TXBD_UNDERRUN 0x0002 #define TXBD_TOE 0x0002 /* Tx FCB param bits */ #define TXFCB_VLN 0x80 #define TXFCB_IP 0x40 #define TXFCB_IP6 0x20 #define TXFCB_TUP 0x10 #define TXFCB_UDP 0x08 #define TXFCB_CIP 0x04 #define TXFCB_CTU 0x02 #define TXFCB_NPH 0x01 #define TXFCB_DEFAULT (TXFCB_IP|TXFCB_TUP|TXFCB_CTU|TXFCB_NPH) /* RxBD status field bits */ #define RXBD_EMPTY 0x8000 #define RXBD_RO1 0x4000 #define RXBD_WRAP 0x2000 #define RXBD_INTERRUPT 0x1000 #define RXBD_LAST 0x0800 #define RXBD_FIRST 0x0400 #define RXBD_MISS 0x0100 #define RXBD_BROADCAST 0x0080 #define RXBD_MULTICAST 0x0040 #define RXBD_LARGE 0x0020 #define RXBD_NONOCTET 0x0010 #define RXBD_SHORT 0x0008 #define RXBD_CRCERR 0x0004 #define RXBD_OVERRUN 0x0002 #define RXBD_TRUNCATED 0x0001 #define RXBD_STATS 0x01ff #define RXBD_ERR (RXBD_LARGE | RXBD_SHORT | RXBD_NONOCTET \ | RXBD_CRCERR | RXBD_OVERRUN \ | RXBD_TRUNCATED) /* Rx FCB status field bits */ #define RXFCB_VLN 0x8000 #define RXFCB_IP 0x4000 #define RXFCB_IP6 0x2000 #define RXFCB_TUP 0x1000 #define RXFCB_CIP 0x0800 #define RXFCB_CTU 0x0400 #define RXFCB_EIP 0x0200 #define RXFCB_ETU 0x0100 #define RXFCB_CSUM_MASK 0x0f00 #define RXFCB_PERR_MASK 0x000c #define RXFCB_PERR_BADL3 0x0008 #define GFAR_INT_NAME_MAX (IFNAMSIZ + 6) /* '_g#_xx' */ #define GFAR_WOL_MAGIC 0x00000001 #define GFAR_WOL_FILER_UCAST 0x00000002 struct txbd8 { union { struct { __be16 status; /* Status Fields */ __be16 length; /* Buffer length */ }; __be32 lstatus; }; __be32 bufPtr; /* Buffer Pointer */ }; struct txfcb { u8 flags; u8 ptp; /* Flag to enable tx timestamping */ u8 l4os; /* Level 4 Header Offset */ u8 l3os; /* Level 3 Header Offset */ __be16 phcs; /* Pseudo-header Checksum */ __be16 vlctl; /* VLAN control word */ }; struct rxbd8 { union { struct { __be16 status; /* Status Fields */ __be16 length; /* Buffer Length */ }; __be32 lstatus; }; __be32 bufPtr; /* Buffer Pointer */ }; struct rxfcb { __be16 flags; u8 rq; /* Receive Queue index */ u8 pro; /* Layer 4 Protocol */ u16 reserved; __be16 vlctl; /* VLAN control word */ }; struct gianfar_skb_cb { unsigned int bytes_sent; /* bytes-on-wire (i.e. no FCB) */ }; #define GFAR_CB(skb) ((struct gianfar_skb_cb *)((skb)->cb)) struct rmon_mib { u32 tr64; /* 0x.680 - Transmit and Receive 64-byte Frame Counter */ u32 tr127; /* 0x.684 - Transmit and Receive 65-127 byte Frame Counter */ u32 tr255; /* 0x.688 - Transmit and Receive 128-255 byte Frame Counter */ u32 tr511; /* 0x.68c - Transmit and Receive 256-511 byte Frame Counter */ u32 tr1k; /* 0x.690 - Transmit and Receive 512-1023 byte Frame Counter */ u32 trmax; /* 0x.694 - Transmit and Receive 1024-1518 byte Frame Counter */ u32 trmgv; /* 0x.698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */ u32 rbyt; /* 0x.69c - Receive Byte Counter */ u32 rpkt; /* 0x.6a0 - Receive Packet Counter */ u32 rfcs; /* 0x.6a4 - Receive FCS Error Counter */ u32 rmca; /* 0x.6a8 - Receive Multicast Packet Counter */ u32 rbca; /* 0x.6ac - Receive Broadcast Packet Counter */ u32 rxcf; /* 0x.6b0 - Receive Control Frame Packet Counter */ u32 rxpf; /* 0x.6b4 - Receive Pause Frame Packet Counter */ u32 rxuo; /* 0x.6b8 - Receive Unknown OP Code Counter */ u32 raln; /* 0x.6bc - Receive Alignment Error Counter */ u32 rflr; /* 0x.6c0 - Receive Frame Length Error Counter */ u32 rcde; /* 0x.6c4 - Receive Code Error Counter */ u32 rcse; /* 0x.6c8 - Receive Carrier Sense Error Counter */ u32 rund; /* 0x.6cc - Receive Undersize Packet Counter */ u32 rovr; /* 0x.6d0 - Receive Oversize Packet Counter */ u32 rfrg; /* 0x.6d4 - Receive Fragments Counter */ u32 rjbr; /* 0x.6d8 - Receive Jabber Counter */ u32 rdrp; /* 0x.6dc - Receive Drop Counter */ u32 tbyt; /* 0x.6e0 - Transmit Byte Counter Counter */ u32 tpkt; /* 0x.6e4 - Transmit Packet Counter */ u32 tmca; /* 0x.6e8 - Transmit Multicast Packet Counter */ u32 tbca; /* 0x.6ec - Transmit Broadcast Packet Counter */ u32 txpf; /* 0x.6f0 - Transmit Pause Control Frame Counter */ u32 tdfr; /* 0x.6f4 - Transmit Deferral Packet Counter */ u32 tedf; /* 0x.6f8 - Transmit Excessive Deferral Packet Counter */ u32 tscl; /* 0x.6fc - Transmit Single Collision Packet Counter */ u32 tmcl; /* 0x.700 - Transmit Multiple Collision Packet Counter */ u32 tlcl; /* 0x.704 - Transmit Late Collision Packet Counter */ u32 txcl; /* 0x.708 - Transmit Excessive Collision Packet Counter */ u32 tncl; /* 0x.70c - Transmit Total Collision Counter */ u8 res1[4]; u32 tdrp; /* 0x.714 - Transmit Drop Frame Counter */ u32 tjbr; /* 0x.718 - Transmit Jabber Frame Counter */ u32 tfcs; /* 0x.71c - Transmit FCS Error Counter */ u32 txcf; /* 0x.720 - Transmit Control Frame Counter */ u32 tovr; /* 0x.724 - Transmit Oversize Frame Counter */ u32 tund; /* 0x.728 - Transmit Undersize Frame Counter */ u32 tfrg; /* 0x.72c - Transmit Fragments Frame Counter */ u32 car1; /* 0x.730 - Carry Register One */ u32 car2; /* 0x.734 - Carry Register Two */ u32 cam1; /* 0x.738 - Carry Mask Register One */ u32 cam2; /* 0x.73c - Carry Mask Register Two */ }; struct gfar_extra_stats { atomic64_t rx_alloc_err; atomic64_t rx_large; atomic64_t rx_short; atomic64_t rx_nonoctet; atomic64_t rx_crcerr; atomic64_t rx_overrun; atomic64_t rx_bsy; atomic64_t rx_babr; atomic64_t rx_trunc; atomic64_t eberr; atomic64_t tx_babt; atomic64_t tx_underrun; atomic64_t tx_timeout; }; #define GFAR_RMON_LEN ((sizeof(struct rmon_mib) - 16)/sizeof(u32)) #define GFAR_EXTRA_STATS_LEN \ (sizeof(struct gfar_extra_stats)/sizeof(atomic64_t)) /* Number of stats exported via ethtool */ #define GFAR_STATS_LEN (GFAR_RMON_LEN + GFAR_EXTRA_STATS_LEN) struct gfar { u32 tsec_id; /* 0x.000 - Controller ID register */ u32 tsec_id2; /* 0x.004 - Controller ID2 register */ u8 res1[8]; u32 ievent; /* 0x.010 - Interrupt Event Register */ u32 imask; /* 0x.014 - Interrupt Mask Register */ u32 edis; /* 0x.018 - Error Disabled Register */ u32 emapg; /* 0x.01c - Group Error mapping register */ u32 ecntrl; /* 0x.020 - Ethernet Control Register */ u32 minflr; /* 0x.024 - Minimum Frame Length Register */ u32 ptv; /* 0x.028 - Pause Time Value Register */ u32 dmactrl; /* 0x.02c - DMA Control Register */ u32 tbipa; /* 0x.030 - TBI PHY Address Register */ u8 res2[28]; u32 fifo_rx_pause; /* 0x.050 - FIFO receive pause start threshold register */ u32 fifo_rx_pause_shutoff; /* x.054 - FIFO receive starve shutoff register */ u32 fifo_rx_alarm; /* 0x.058 - FIFO receive alarm start threshold register */ u32 fifo_rx_alarm_shutoff; /*0x.05c - FIFO receive alarm starve shutoff register */ u8 res3[44]; u32 fifo_tx_thr; /* 0x.08c - FIFO transmit threshold register */ u8 res4[8]; u32 fifo_tx_starve; /* 0x.098 - FIFO transmit starve register */ u32 fifo_tx_starve_shutoff; /* 0x.09c - FIFO transmit starve shutoff register */ u8 res5[96]; u32 tctrl; /* 0x.100 - Transmit Control Register */ u32 tstat; /* 0x.104 - Transmit Status Register */ u32 dfvlan; /* 0x.108 - Default VLAN Control word */ u32 tbdlen; /* 0x.10c - Transmit Buffer Descriptor Data Length Register */ u32 txic; /* 0x.110 - Transmit Interrupt Coalescing Configuration Register */ u32 tqueue; /* 0x.114 - Transmit queue control register */ u8 res7[40]; u32 tr03wt; /* 0x.140 - TxBD Rings 0-3 round-robin weightings */ u32 tr47wt; /* 0x.144 - TxBD Rings 4-7 round-robin weightings */ u8 res8[52]; u32 tbdbph; /* 0x.17c - Tx data buffer pointer high */ u8 res9a[4]; u32 tbptr0; /* 0x.184 - TxBD Pointer for ring 0 */ u8 res9b[4]; u32 tbptr1; /* 0x.18c - TxBD Pointer for ring 1 */ u8 res9c[4]; u32 tbptr2; /* 0x.194 - TxBD Pointer for ring 2 */ u8 res9d[4]; u32 tbptr3; /* 0x.19c - TxBD Pointer for ring 3 */ u8 res9e[4]; u32 tbptr4; /* 0x.1a4 - TxBD Pointer for ring 4 */ u8 res9f[4]; u32 tbptr5; /* 0x.1ac - TxBD Pointer for ring 5 */ u8 res9g[4]; u32 tbptr6; /* 0x.1b4 - TxBD Pointer for ring 6 */ u8 res9h[4]; u32 tbptr7; /* 0x.1bc - TxBD Pointer for ring 7 */ u8 res9[64]; u32 tbaseh; /* 0x.200 - TxBD base address high */ u32 tbase0; /* 0x.204 - TxBD Base Address of ring 0 */ u8 res10a[4]; u32 tbase1; /* 0x.20c - TxBD Base Address of ring 1 */ u8 res10b[4]; u32 tbase2; /* 0x.214 - TxBD Base Address of ring 2 */ u8 res10c[4]; u32 tbase3; /* 0x.21c - TxBD Base Address of ring 3 */ u8 res10d[4]; u32 tbase4; /* 0x.224 - TxBD Base Address of ring 4 */ u8 res10e[4]; u32 tbase5; /* 0x.22c - TxBD Base Address of ring 5 */ u8 res10f[4]; u32 tbase6; /* 0x.234 - TxBD Base Address of ring 6 */ u8 res10g[4]; u32 tbase7; /* 0x.23c - TxBD Base Address of ring 7 */ u8 res10[192]; u32 rctrl; /* 0x.300 - Receive Control Register */ u32 rstat; /* 0x.304 - Receive Status Register */ u8 res12[8]; u32 rxic; /* 0x.310 - Receive Interrupt Coalescing Configuration Register */ u32 rqueue; /* 0x.314 - Receive queue control register */ u32 rir0; /* 0x.318 - Ring mapping register 0 */ u32 rir1; /* 0x.31c - Ring mapping register 1 */ u32 rir2; /* 0x.320 - Ring mapping register 2 */ u32 rir3; /* 0x.324 - Ring mapping register 3 */ u8 res13[8]; u32 rbifx; /* 0x.330 - Receive bit field extract control register */ u32 rqfar; /* 0x.334 - Receive queue filing table address register */ u32 rqfcr; /* 0x.338 - Receive queue filing table control register */ u32 rqfpr; /* 0x.33c - Receive queue filing table property register */ u32 mrblr; /* 0x.340 - Maximum Receive Buffer Length Register */ u8 res14[56]; u32 rbdbph; /* 0x.37c - Rx data buffer pointer high */ u8 res15a[4]; u32 rbptr0; /* 0x.384 - RxBD pointer for ring 0 */ u8 res15b[4]; u32 rbptr1; /* 0x.38c - RxBD pointer for ring 1 */ u8 res15c[4]; u32 rbptr2; /* 0x.394 - RxBD pointer for ring 2 */ u8 res15d[4]; u32 rbptr3; /* 0x.39c - RxBD pointer for ring 3 */ u8 res15e[4]; u32 rbptr4; /* 0x.3a4 - RxBD pointer for ring 4 */ u8 res15f[4]; u32 rbptr5; /* 0x.3ac - RxBD pointer for ring 5 */ u8 res15g[4]; u32 rbptr6; /* 0x.3b4 - RxBD pointer for ring 6 */ u8 res15h[4]; u32 rbptr7; /* 0x.3bc - RxBD pointer for ring 7 */ u8 res16[64]; u32 rbaseh; /* 0x.400 - RxBD base address high */ u32 rbase0; /* 0x.404 - RxBD base address of ring 0 */ u8 res17a[4]; u32 rbase1; /* 0x.40c - RxBD base address of ring 1 */ u8 res17b[4]; u32 rbase2; /* 0x.414 - RxBD base address of ring 2 */ u8 res17c[4]; u32 rbase3; /* 0x.41c - RxBD base address of ring 3 */ u8 res17d[4]; u32 rbase4; /* 0x.424 - RxBD base address of ring 4 */ u8 res17e[4]; u32 rbase5; /* 0x.42c - RxBD base address of ring 5 */ u8 res17f[4]; u32 rbase6; /* 0x.434 - RxBD base address of ring 6 */ u8 res17g[4]; u32 rbase7; /* 0x.43c - RxBD base address of ring 7 */ u8 res17[192]; u32 maccfg1; /* 0x.500 - MAC Configuration 1 Register */ u32 maccfg2; /* 0x.504 - MAC Configuration 2 Register */ u32 ipgifg; /* 0x.508 - Inter Packet Gap/Inter Frame Gap Register */ u32 hafdup; /* 0x.50c - Half Duplex Register */ u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */ u8 res18[12]; u8 gfar_mii_regs[24]; /* See gianfar_phy.h */ u32 ifctrl; /* 0x.538 - Interface control register */ u32 ifstat; /* 0x.53c - Interface Status Register */ u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */ u32 macstnaddr2; /* 0x.544 - Station Address Part 2 Register */ u32 mac01addr1; /* 0x.548 - MAC exact match address 1, part 1 */ u32 mac01addr2; /* 0x.54c - MAC exact match address 1, part 2 */ u32 mac02addr1; /* 0x.550 - MAC exact match address 2, part 1 */ u32 mac02addr2; /* 0x.554 - MAC exact match address 2, part 2 */ u32 mac03addr1; /* 0x.558 - MAC exact match address 3, part 1 */ u32 mac03addr2; /* 0x.55c - MAC exact match address 3, part 2 */ u32 mac04addr1; /* 0x.560 - MAC exact match address 4, part 1 */ u32 mac04addr2; /* 0x.564 - MAC exact match address 4, part 2 */ u32 mac05addr1; /* 0x.568 - MAC exact match address 5, part 1 */ u32 mac05addr2; /* 0x.56c - MAC exact match address 5, part 2 */ u32 mac06addr1; /* 0x.570 - MAC exact match address 6, part 1 */ u32 mac06addr2; /* 0x.574 - MAC exact match address 6, part 2 */ u32 mac07addr1; /* 0x.578 - MAC exact match address 7, part 1 */ u32 mac07addr2; /* 0x.57c - MAC exact match address 7, part 2 */ u32 mac08addr1; /* 0x.580 - MAC exact match address 8, part 1 */ u32 mac08addr2; /* 0x.584 - MAC exact match address 8, part 2 */ u32 mac09addr1; /* 0x.588 - MAC exact match address 9, part 1 */ u32 mac09addr2; /* 0x.58c - MAC exact match address 9, part 2 */ u32 mac10addr1; /* 0x.590 - MAC exact match address 10, part 1*/ u32 mac10addr2; /* 0x.594 - MAC exact match address 10, part 2*/ u32 mac11addr1; /* 0x.598 - MAC exact match address 11, part 1*/ u32 mac11addr2; /* 0x.59c - MAC exact match address 11, part 2*/ u32 mac12addr1; /* 0x.5a0 - MAC exact match address 12, part 1*/ u32 mac12addr2; /* 0x.5a4 - MAC exact match address 12, part 2*/ u32 mac13addr1; /* 0x.5a8 - MAC exact match address 13, part 1*/ u32 mac13addr2; /* 0x.5ac - MAC exact match address 13, part 2*/ u32 mac14addr1; /* 0x.5b0 - MAC exact match address 14, part 1*/ u32 mac14addr2; /* 0x.5b4 - MAC exact match address 14, part 2*/ u32 mac15addr1; /* 0x.5b8 - MAC exact match address 15, part 1*/ u32 mac15addr2; /* 0x.5bc - MAC exact match address 15, part 2*/ u8 res20[192]; struct rmon_mib rmon; /* 0x.680-0x.73c */ u32 rrej; /* 0x.740 - Receive filer rejected packet counter */ u8 res21[188]; u32 igaddr0; /* 0x.800 - Indivdual/Group address register 0*/ u32 igaddr1; /* 0x.804 - Indivdual/Group address register 1*/ u32 igaddr2; /* 0x.808 - Indivdual/Group address register 2*/ u32 igaddr3; /* 0x.80c - Indivdual/Group address register 3*/ u32 igaddr4; /* 0x.810 - Indivdual/Group address register 4*/ u32 igaddr5; /* 0x.814 - Indivdual/Group address register 5*/ u32 igaddr6; /* 0x.818 - Indivdual/Group address register 6*/ u32 igaddr7; /* 0x.81c - Indivdual/Group address register 7*/ u8 res22[96]; u32 gaddr0; /* 0x.880 - Group address register 0 */ u32 gaddr1; /* 0x.884 - Group address register 1 */ u32 gaddr2; /* 0x.888 - Group address register 2 */ u32 gaddr3; /* 0x.88c - Group address register 3 */ u32 gaddr4; /* 0x.890 - Group address register 4 */ u32 gaddr5; /* 0x.894 - Group address register 5 */ u32 gaddr6; /* 0x.898 - Group address register 6 */ u32 gaddr7; /* 0x.89c - Group address register 7 */ u8 res23a[352]; u32 fifocfg; /* 0x.a00 - FIFO interface config register */ u8 res23b[252]; u8 res23c[248]; u32 attr; /* 0x.bf8 - Attributes Register */ u32 attreli; /* 0x.bfc - Attributes Extract Length and Extract Index Register */ u32 rqprm0; /* 0x.c00 - Receive queue parameters register 0 */ u32 rqprm1; /* 0x.c04 - Receive queue parameters register 1 */ u32 rqprm2; /* 0x.c08 - Receive queue parameters register 2 */ u32 rqprm3; /* 0x.c0c - Receive queue parameters register 3 */ u32 rqprm4; /* 0x.c10 - Receive queue parameters register 4 */ u32 rqprm5; /* 0x.c14 - Receive queue parameters register 5 */ u32 rqprm6; /* 0x.c18 - Receive queue parameters register 6 */ u32 rqprm7; /* 0x.c1c - Receive queue parameters register 7 */ u8 res24[36]; u32 rfbptr0; /* 0x.c44 - Last free RxBD pointer for ring 0 */ u8 res24a[4]; u32 rfbptr1; /* 0x.c4c - Last free RxBD pointer for ring 1 */ u8 res24b[4]; u32 rfbptr2; /* 0x.c54 - Last free RxBD pointer for ring 2 */ u8 res24c[4]; u32 rfbptr3; /* 0x.c5c - Last free RxBD pointer for ring 3 */ u8 res24d[4]; u32 rfbptr4; /* 0x.c64 - Last free RxBD pointer for ring 4 */ u8 res24e[4]; u32 rfbptr5; /* 0x.c6c - Last free RxBD pointer for ring 5 */ u8 res24f[4]; u32 rfbptr6; /* 0x.c74 - Last free RxBD pointer for ring 6 */ u8 res24g[4]; u32 rfbptr7; /* 0x.c7c - Last free RxBD pointer for ring 7 */ u8 res24h[4]; u8 res24x[556]; u32 isrg0; /* 0x.eb0 - Interrupt steering group 0 register */ u32 isrg1; /* 0x.eb4 - Interrupt steering group 1 register */ u32 isrg2; /* 0x.eb8 - Interrupt steering group 2 register */ u32 isrg3; /* 0x.ebc - Interrupt steering group 3 register */ u8 res25[16]; u32 rxic0; /* 0x.ed0 - Ring 0 Rx interrupt coalescing */ u32 rxic1; /* 0x.ed4 - Ring 1 Rx interrupt coalescing */ u32 rxic2; /* 0x.ed8 - Ring 2 Rx interrupt coalescing */ u32 rxic3; /* 0x.edc - Ring 3 Rx interrupt coalescing */ u32 rxic4; /* 0x.ee0 - Ring 4 Rx interrupt coalescing */ u32 rxic5; /* 0x.ee4 - Ring 5 Rx interrupt coalescing */ u32 rxic6; /* 0x.ee8 - Ring 6 Rx interrupt coalescing */ u32 rxic7; /* 0x.eec - Ring 7 Rx interrupt coalescing */ u8 res26[32]; u32 txic0; /* 0x.f10 - Ring 0 Tx interrupt coalescing */ u32 txic1; /* 0x.f14 - Ring 1 Tx interrupt coalescing */ u32 txic2; /* 0x.f18 - Ring 2 Tx interrupt coalescing */ u32 txic3; /* 0x.f1c - Ring 3 Tx interrupt coalescing */ u32 txic4; /* 0x.f20 - Ring 4 Tx interrupt coalescing */ u32 txic5; /* 0x.f24 - Ring 5 Tx interrupt coalescing */ u32 txic6; /* 0x.f28 - Ring 6 Tx interrupt coalescing */ u32 txic7; /* 0x.f2c - Ring 7 Tx interrupt coalescing */ u8 res27[208]; }; /* Flags related to gianfar device features */ #define FSL_GIANFAR_DEV_HAS_GIGABIT 0x00000001 #define FSL_GIANFAR_DEV_HAS_COALESCE 0x00000002 #define FSL_GIANFAR_DEV_HAS_RMON 0x00000004 #define FSL_GIANFAR_DEV_HAS_MULTI_INTR 0x00000008 #define FSL_GIANFAR_DEV_HAS_CSUM 0x00000010 #define FSL_GIANFAR_DEV_HAS_VLAN 0x00000020 #define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH 0x00000040 #define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET 0x00000100 #define FSL_GIANFAR_DEV_HAS_BD_STASHING 0x00000200 #define FSL_GIANFAR_DEV_HAS_BUF_STASHING 0x00000400 #define FSL_GIANFAR_DEV_HAS_TIMER 0x00000800 #define FSL_GIANFAR_DEV_HAS_WAKE_ON_FILER 0x00001000 #define FSL_GIANFAR_DEV_HAS_RX_FILER 0x00002000 #if (MAXGROUPS == 2) #define DEFAULT_MAPPING 0xAA #else #define DEFAULT_MAPPING 0xFF #endif #define ISRG_RR0 0x80000000 #define ISRG_TR0 0x00800000 /* The same driver can operate in two modes */ /* SQ_SG_MODE: Single Queue Single Group Mode * (Backward compatible mode) * MQ_MG_MODE: Multi Queue Multi Group mode */ enum { SQ_SG_MODE = 0, MQ_MG_MODE }; /* GFAR_SQ_POLLING: Single Queue NAPI polling mode * The driver supports a single pair of RX/Tx queues * per interrupt group (Rx/Tx int line). MQ_MG mode * devices have 2 interrupt groups, so the device will * have a total of 2 Tx and 2 Rx queues in this case. * GFAR_MQ_POLLING: Multi Queue NAPI polling mode * The driver supports all the 8 Rx and Tx HW queues * each queue mapped by the Device Tree to one of * the 2 interrupt groups. This mode implies significant * processing overhead (CPU and controller level). */ enum gfar_poll_mode { GFAR_SQ_POLLING = 0, GFAR_MQ_POLLING }; /* * Per TX queue stats */ struct tx_q_stats { unsigned long tx_packets; unsigned long tx_bytes; }; /** * struct gfar_priv_tx_q - per tx queue structure * @txlock: per queue tx spin lock * @tx_skbuff:skb pointers * @skb_curtx: to be used skb pointer * @skb_dirtytx:the last used skb pointer * @stats: bytes/packets stats * @qindex: index of this queue * @dev: back pointer to the dev structure * @grp: back pointer to the group to which this queue belongs * @tx_bd_base: First tx buffer descriptor * @cur_tx: Next free ring entry * @dirty_tx: First buffer in line to be transmitted * @tx_ring_size: Tx ring size * @num_txbdfree: number of free TxBds * @txcoalescing: enable/disable tx coalescing * @txic: transmit interrupt coalescing value * @txcount: coalescing value if based on tx frame count * @txtime: coalescing value if based on time */ struct gfar_priv_tx_q { /* cacheline 1 */ spinlock_t txlock __attribute__ ((aligned (SMP_CACHE_BYTES))); struct txbd8 *tx_bd_base; struct txbd8 *cur_tx; unsigned int num_txbdfree; unsigned short skb_curtx; unsigned short tx_ring_size; struct tx_q_stats stats; struct gfar_priv_grp *grp; /* cacheline 2 */ struct net_device *dev; struct sk_buff **tx_skbuff; struct txbd8 *dirty_tx; unsigned short skb_dirtytx; unsigned short qindex; /* Configuration info for the coalescing features */ unsigned int txcoalescing; unsigned long txic; dma_addr_t tx_bd_dma_base; }; /* * Per RX queue stats */ struct rx_q_stats { unsigned long rx_packets; unsigned long rx_bytes; unsigned long rx_dropped; }; struct gfar_rx_buff { dma_addr_t dma; struct page *page; unsigned int page_offset; }; /** * struct gfar_priv_rx_q - per rx queue structure * @rx_buff: Array of buffer info metadata structs * @rx_bd_base: First rx buffer descriptor * @next_to_use: index of the next buffer to be alloc'd * @next_to_clean: index of the next buffer to be cleaned * @qindex: index of this queue * @ndev: back pointer to net_device * @rx_ring_size: Rx ring size * @rxcoalescing: enable/disable rx-coalescing * @rxic: receive interrupt coalescing vlaue */ struct gfar_priv_rx_q { struct gfar_rx_buff *rx_buff __aligned(SMP_CACHE_BYTES); struct rxbd8 *rx_bd_base; struct net_device *ndev; struct device *dev; u16 rx_ring_size; u16 qindex; struct gfar_priv_grp *grp; u16 next_to_clean; u16 next_to_use; u16 next_to_alloc; struct sk_buff *skb; struct rx_q_stats stats; u32 __iomem *rfbptr; unsigned char rxcoalescing; unsigned long rxic; dma_addr_t rx_bd_dma_base; }; enum gfar_irqinfo_id { GFAR_TX = 0, GFAR_RX = 1, GFAR_ER = 2, GFAR_NUM_IRQS = 3 }; struct gfar_irqinfo { unsigned int irq; char name[GFAR_INT_NAME_MAX]; }; /** * struct gfar_priv_grp - per group structure * @napi: the napi poll function * @priv: back pointer to the priv structure * @regs: the ioremapped register space for this group * @irqinfo: TX/RX/ER irq data for this group */ struct gfar_priv_grp { spinlock_t grplock __aligned(SMP_CACHE_BYTES); struct napi_struct napi_rx; struct napi_struct napi_tx; struct gfar __iomem *regs; struct gfar_priv_tx_q *tx_queue; struct gfar_priv_rx_q *rx_queue; unsigned int tstat; unsigned int rstat; struct gfar_private *priv; unsigned long num_tx_queues; unsigned long tx_bit_map; unsigned long num_rx_queues; unsigned long rx_bit_map; struct gfar_irqinfo *irqinfo[GFAR_NUM_IRQS]; }; #define gfar_irq(grp, ID) \ ((grp)->irqinfo[GFAR_##ID]) enum gfar_errata { GFAR_ERRATA_74 = 0x01, GFAR_ERRATA_76 = 0x02, GFAR_ERRATA_A002 = 0x04, GFAR_ERRATA_12 = 0x08, /* a.k.a errata eTSEC49 */ }; enum gfar_dev_state { GFAR_DOWN = 1, GFAR_RESETTING }; /* Struct stolen almost completely (and shamelessly) from the FCC enet source * (Ok, that's not so true anymore, but there is a family resemblance) * The GFAR buffer descriptors track the ring buffers. The rx_bd_base * and tx_bd_base always point to the currently available buffer. * The dirty_tx tracks the current buffer that is being sent by the * controller. The cur_tx and dirty_tx are equal under both completely * empty and completely full conditions. The empty/ready indicator in * the buffer descriptor determines the actual condition. */ struct gfar_private { struct device *dev; struct net_device *ndev; enum gfar_errata errata; u16 uses_rxfcb; u16 padding; u32 device_flags; /* HW time stamping enabled flag */ int hwts_rx_en; int hwts_tx_en; struct gfar_priv_tx_q *tx_queue[MAX_TX_QS]; struct gfar_priv_rx_q *rx_queue[MAX_RX_QS]; struct gfar_priv_grp gfargrp[MAXGROUPS]; unsigned long state; unsigned short mode; unsigned short poll_mode; unsigned int num_tx_queues; unsigned int num_rx_queues; unsigned int num_grps; int tx_actual_en; /* Network Statistics */ struct gfar_extra_stats extra_stats; /* PHY stuff */ phy_interface_t interface; struct device_node *phy_node; struct device_node *tbi_node; struct mii_bus *mii_bus; int oldspeed; int oldduplex; int oldlink; uint32_t msg_enable; struct work_struct reset_task; struct platform_device *ofdev; unsigned char extended_hash:1, bd_stash_en:1, rx_filer_enable:1, /* Enable priorty based Tx scheduling in Hw */ prio_sched_en:1, /* Flow control flags */ pause_aneg_en:1, tx_pause_en:1, rx_pause_en:1; /* The total tx and rx ring size for the enabled queues */ unsigned int total_tx_ring_size; unsigned int total_rx_ring_size; u32 rqueue; u32 tqueue; /* RX per device parameters */ unsigned int rx_stash_size; unsigned int rx_stash_index; u32 cur_filer_idx; /* RX queue filer rule set*/ struct ethtool_rx_list rx_list; struct mutex rx_queue_access; /* Hash registers and their width */ u32 __iomem *hash_regs[16]; int hash_width; /* wake-on-lan settings */ u16 wol_opts; u16 wol_supported; /*Filer table*/ unsigned int ftp_rqfpr[MAX_FILER_IDX + 1]; unsigned int ftp_rqfcr[MAX_FILER_IDX + 1]; }; static inline int gfar_has_errata(struct gfar_private *priv, enum gfar_errata err) { return priv->errata & err; } static inline u32 gfar_read(unsigned __iomem *addr) { u32 val; val = ioread32be(addr); return val; } static inline void gfar_write(unsigned __iomem *addr, u32 val) { iowrite32be(val, addr); } static inline void gfar_write_filer(struct gfar_private *priv, unsigned int far, unsigned int fcr, unsigned int fpr) { struct gfar __iomem *regs = priv->gfargrp[0].regs; gfar_write(®s->rqfar, far); gfar_write(®s->rqfcr, fcr); gfar_write(®s->rqfpr, fpr); } static inline void gfar_read_filer(struct gfar_private *priv, unsigned int far, unsigned int *fcr, unsigned int *fpr) { struct gfar __iomem *regs = priv->gfargrp[0].regs; gfar_write(®s->rqfar, far); *fcr = gfar_read(®s->rqfcr); *fpr = gfar_read(®s->rqfpr); } static inline void gfar_write_isrg(struct gfar_private *priv) { struct gfar __iomem *regs = priv->gfargrp[0].regs; u32 __iomem *baddr = ®s->isrg0; u32 isrg = 0; int grp_idx, i; for (grp_idx = 0; grp_idx < priv->num_grps; grp_idx++) { struct gfar_priv_grp *grp = &priv->gfargrp[grp_idx]; for_each_set_bit(i, &grp->rx_bit_map, priv->num_rx_queues) { isrg |= (ISRG_RR0 >> i); } for_each_set_bit(i, &grp->tx_bit_map, priv->num_tx_queues) { isrg |= (ISRG_TR0 >> i); } gfar_write(baddr, isrg); baddr++; isrg = 0; } } static inline int gfar_is_dma_stopped(struct gfar_private *priv) { struct gfar __iomem *regs = priv->gfargrp[0].regs; return ((gfar_read(®s->ievent) & (IEVENT_GRSC | IEVENT_GTSC)) == (IEVENT_GRSC | IEVENT_GTSC)); } static inline int gfar_is_rx_dma_stopped(struct gfar_private *priv) { struct gfar __iomem *regs = priv->gfargrp[0].regs; return gfar_read(®s->ievent) & IEVENT_GRSC; } static inline void gfar_wmb(void) { #if defined(CONFIG_PPC) /* The powerpc-specific eieio() is used, as wmb() has too strong * semantics (it requires synchronization between cacheable and * uncacheable mappings, which eieio() doesn't provide and which we * don't need), thus requiring a more expensive sync instruction. At * some point, the set of architecture-independent barrier functions * should be expanded to include weaker barriers. */ eieio(); #else wmb(); /* order write acesses for BD (or FCB) fields */ #endif } static inline void gfar_clear_txbd_status(struct txbd8 *bdp) { u32 lstatus = be32_to_cpu(bdp->lstatus); lstatus &= BD_LFLAG(TXBD_WRAP); bdp->lstatus = cpu_to_be32(lstatus); } static inline int gfar_rxbd_unused(struct gfar_priv_rx_q *rxq) { if (rxq->next_to_clean > rxq->next_to_use) return rxq->next_to_clean - rxq->next_to_use - 1; return rxq->rx_ring_size + rxq->next_to_clean - rxq->next_to_use - 1; } static inline u32 gfar_rxbd_dma_lastfree(struct gfar_priv_rx_q *rxq) { struct rxbd8 *bdp; u32 bdp_dma; int i; i = rxq->next_to_use ? rxq->next_to_use - 1 : rxq->rx_ring_size - 1; bdp = &rxq->rx_bd_base[i]; bdp_dma = lower_32_bits(rxq->rx_bd_dma_base); bdp_dma += (uintptr_t)bdp - (uintptr_t)rxq->rx_bd_base; return bdp_dma; } int startup_gfar(struct net_device *dev); void stop_gfar(struct net_device *dev); void gfar_mac_reset(struct gfar_private *priv); int gfar_set_features(struct net_device *dev, netdev_features_t features); extern const struct ethtool_ops gfar_ethtool_ops; #define MAX_FILER_CACHE_IDX (2*(MAX_FILER_IDX)) #define RQFCR_PID_PRI_MASK 0xFFFFFFF8 #define RQFCR_PID_L4P_MASK 0xFFFFFF00 #define RQFCR_PID_VID_MASK 0xFFFFF000 #define RQFCR_PID_PORT_MASK 0xFFFF0000 #define RQFCR_PID_MAC_MASK 0xFF000000 /* Represents a receive filer table entry */ struct gfar_filer_entry { u32 ctrl; u32 prop; }; /* The 20 additional entries are a shadow for one extra element */ struct filer_table { u32 index; struct gfar_filer_entry fe[MAX_FILER_CACHE_IDX + 20]; }; #endif /* __GIANFAR_H */
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