| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Shreyas Bhatewara | 1190 | 85.92% | 6 | 23.08% |
| Shrikrishna Khare | 130 | 9.39% | 7 | 26.92% |
| Andy King | 15 | 1.08% | 1 | 3.85% |
| Jesse Gross | 12 | 0.87% | 1 | 3.85% |
| Michał Mirosław | 12 | 0.87% | 2 | 7.69% |
| Stephen Hemminger | 8 | 0.58% | 2 | 7.69% |
| Neil Horman | 7 | 0.51% | 1 | 3.85% |
| Harvey Harrison | 6 | 0.43% | 2 | 7.69% |
| hpreg@vmware.com | 3 | 0.22% | 2 | 7.69% |
| Arnd Bergmann | 1 | 0.07% | 1 | 3.85% |
| Adit Ranadive | 1 | 0.07% | 1 | 3.85% |
| Total | 1385 | 26 |
/* * Linux driver for VMware's vmxnet3 ethernet NIC. * * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved. * * 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; version 2 of the License and no later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * The full GNU General Public License is included in this distribution in * the file called "COPYING". * * Maintained by: pv-drivers@vmware.com * */ #ifndef _VMXNET3_INT_H #define _VMXNET3_INT_H #include <linux/bitops.h> #include <linux/ethtool.h> #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/pci.h> #include <linux/compiler.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/ioport.h> #include <linux/highmem.h> #include <linux/timer.h> #include <linux/skbuff.h> #include <linux/interrupt.h> #include <linux/workqueue.h> #include <linux/uaccess.h> #include <asm/dma.h> #include <asm/page.h> #include <linux/tcp.h> #include <linux/udp.h> #include <linux/ip.h> #include <linux/ipv6.h> #include <linux/in.h> #include <linux/etherdevice.h> #include <asm/checksum.h> #include <linux/if_vlan.h> #include <linux/if_arp.h> #include <linux/inetdevice.h> #include <linux/log2.h> #include "vmxnet3_defs.h" #ifdef DEBUG # define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI(debug)" #else # define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI" #endif /* * Version numbers */ #define VMXNET3_DRIVER_VERSION_STRING "1.4.16.0-k" /* Each byte of this 32-bit integer encodes a version number in * VMXNET3_DRIVER_VERSION_STRING. */ #define VMXNET3_DRIVER_VERSION_NUM 0x01041000 #if defined(CONFIG_PCI_MSI) /* RSS only makes sense if MSI-X is supported. */ #define VMXNET3_RSS #endif #define VMXNET3_REV_3 2 /* Vmxnet3 Rev. 3 */ #define VMXNET3_REV_2 1 /* Vmxnet3 Rev. 2 */ #define VMXNET3_REV_1 0 /* Vmxnet3 Rev. 1 */ /* * Capabilities */ enum { VMNET_CAP_SG = 0x0001, /* Can do scatter-gather transmits. */ VMNET_CAP_IP4_CSUM = 0x0002, /* Can checksum only TCP/UDP over * IPv4 */ VMNET_CAP_HW_CSUM = 0x0004, /* Can checksum all packets. */ VMNET_CAP_HIGH_DMA = 0x0008, /* Can DMA to high memory. */ VMNET_CAP_TOE = 0x0010, /* Supports TCP/IP offload. */ VMNET_CAP_TSO = 0x0020, /* Supports TCP Segmentation * offload */ VMNET_CAP_SW_TSO = 0x0040, /* Supports SW TCP Segmentation */ VMNET_CAP_VMXNET_APROM = 0x0080, /* Vmxnet APROM support */ VMNET_CAP_HW_TX_VLAN = 0x0100, /* Can we do VLAN tagging in HW */ VMNET_CAP_HW_RX_VLAN = 0x0200, /* Can we do VLAN untagging in HW */ VMNET_CAP_SW_VLAN = 0x0400, /* VLAN tagging/untagging in SW */ VMNET_CAP_WAKE_PCKT_RCV = 0x0800, /* Can wake on network packet recv? */ VMNET_CAP_ENABLE_INT_INLINE = 0x1000, /* Enable Interrupt Inline */ VMNET_CAP_ENABLE_HEADER_COPY = 0x2000, /* copy header for vmkernel */ VMNET_CAP_TX_CHAIN = 0x4000, /* Guest can use multiple tx entries * for a pkt */ VMNET_CAP_RX_CHAIN = 0x8000, /* pkt can span multiple rx entries */ VMNET_CAP_LPD = 0x10000, /* large pkt delivery */ VMNET_CAP_BPF = 0x20000, /* BPF Support in VMXNET Virtual HW*/ VMNET_CAP_SG_SPAN_PAGES = 0x40000, /* Scatter-gather can span multiple*/ /* pages transmits */ VMNET_CAP_IP6_CSUM = 0x80000, /* Can do IPv6 csum offload. */ VMNET_CAP_TSO6 = 0x100000, /* TSO seg. offload for IPv6 pkts. */ VMNET_CAP_TSO256k = 0x200000, /* Can do TSO seg offload for */ /* pkts up to 256kB. */ VMNET_CAP_UPT = 0x400000 /* Support UPT */ }; /* * Maximum devices supported. */ #define MAX_ETHERNET_CARDS 10 #define MAX_PCI_PASSTHRU_DEVICE 6 struct vmxnet3_cmd_ring { union Vmxnet3_GenericDesc *base; u32 size; u32 next2fill; u32 next2comp; u8 gen; dma_addr_t basePA; }; static inline void vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring *ring) { ring->next2fill++; if (unlikely(ring->next2fill == ring->size)) { ring->next2fill = 0; VMXNET3_FLIP_RING_GEN(ring->gen); } } static inline void vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring) { VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size); } static inline int vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring *ring) { return (ring->next2comp > ring->next2fill ? 0 : ring->size) + ring->next2comp - ring->next2fill - 1; } struct vmxnet3_comp_ring { union Vmxnet3_GenericDesc *base; u32 size; u32 next2proc; u8 gen; u8 intr_idx; dma_addr_t basePA; }; static inline void vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring *ring) { ring->next2proc++; if (unlikely(ring->next2proc == ring->size)) { ring->next2proc = 0; VMXNET3_FLIP_RING_GEN(ring->gen); } } struct vmxnet3_tx_data_ring { struct Vmxnet3_TxDataDesc *base; u32 size; dma_addr_t basePA; }; enum vmxnet3_buf_map_type { VMXNET3_MAP_INVALID = 0, VMXNET3_MAP_NONE, VMXNET3_MAP_SINGLE, VMXNET3_MAP_PAGE, }; struct vmxnet3_tx_buf_info { u32 map_type; u16 len; u16 sop_idx; dma_addr_t dma_addr; struct sk_buff *skb; }; struct vmxnet3_tq_driver_stats { u64 drop_total; /* # of pkts dropped by the driver, the * counters below track droppings due to * different reasons */ u64 drop_too_many_frags; u64 drop_oversized_hdr; u64 drop_hdr_inspect_err; u64 drop_tso; u64 tx_ring_full; u64 linearized; /* # of pkts linearized */ u64 copy_skb_header; /* # of times we have to copy skb header */ u64 oversized_hdr; }; struct vmxnet3_tx_ctx { bool ipv4; bool ipv6; u16 mss; u32 eth_ip_hdr_size; /* only valid for pkts requesting tso or csum * offloading */ u32 l4_hdr_size; /* only valid if mss != 0 */ u32 copy_size; /* # of bytes copied into the data ring */ union Vmxnet3_GenericDesc *sop_txd; union Vmxnet3_GenericDesc *eop_txd; }; struct vmxnet3_tx_queue { char name[IFNAMSIZ+8]; /* To identify interrupt */ struct vmxnet3_adapter *adapter; spinlock_t tx_lock; struct vmxnet3_cmd_ring tx_ring; struct vmxnet3_tx_buf_info *buf_info; dma_addr_t buf_info_pa; struct vmxnet3_tx_data_ring data_ring; struct vmxnet3_comp_ring comp_ring; struct Vmxnet3_TxQueueCtrl *shared; struct vmxnet3_tq_driver_stats stats; bool stopped; int num_stop; /* # of times the queue is * stopped */ int qid; u16 txdata_desc_size; } __attribute__((__aligned__(SMP_CACHE_BYTES))); enum vmxnet3_rx_buf_type { VMXNET3_RX_BUF_NONE = 0, VMXNET3_RX_BUF_SKB = 1, VMXNET3_RX_BUF_PAGE = 2 }; struct vmxnet3_rx_buf_info { enum vmxnet3_rx_buf_type buf_type; u16 len; union { struct sk_buff *skb; struct page *page; }; dma_addr_t dma_addr; }; struct vmxnet3_rx_ctx { struct sk_buff *skb; u32 sop_idx; }; struct vmxnet3_rq_driver_stats { u64 drop_total; u64 drop_err; u64 drop_fcs; u64 rx_buf_alloc_failure; }; struct vmxnet3_rx_data_ring { Vmxnet3_RxDataDesc *base; dma_addr_t basePA; u16 desc_size; }; struct vmxnet3_rx_queue { char name[IFNAMSIZ + 8]; /* To identify interrupt */ struct vmxnet3_adapter *adapter; struct napi_struct napi; struct vmxnet3_cmd_ring rx_ring[2]; struct vmxnet3_rx_data_ring data_ring; struct vmxnet3_comp_ring comp_ring; struct vmxnet3_rx_ctx rx_ctx; u32 qid; /* rqID in RCD for buffer from 1st ring */ u32 qid2; /* rqID in RCD for buffer from 2nd ring */ u32 dataRingQid; /* rqID in RCD for buffer from data ring */ struct vmxnet3_rx_buf_info *buf_info[2]; dma_addr_t buf_info_pa; struct Vmxnet3_RxQueueCtrl *shared; struct vmxnet3_rq_driver_stats stats; } __attribute__((__aligned__(SMP_CACHE_BYTES))); #define VMXNET3_DEVICE_MAX_TX_QUEUES 8 #define VMXNET3_DEVICE_MAX_RX_QUEUES 8 /* Keep this value as a power of 2 */ /* Should be less than UPT1_RSS_MAX_IND_TABLE_SIZE */ #define VMXNET3_RSS_IND_TABLE_SIZE (VMXNET3_DEVICE_MAX_RX_QUEUES * 4) #define VMXNET3_LINUX_MAX_MSIX_VECT (VMXNET3_DEVICE_MAX_TX_QUEUES + \ VMXNET3_DEVICE_MAX_RX_QUEUES + 1) #define VMXNET3_LINUX_MIN_MSIX_VECT 2 /* 1 for tx-rx pair and 1 for event */ struct vmxnet3_intr { enum vmxnet3_intr_mask_mode mask_mode; enum vmxnet3_intr_type type; /* MSI-X, MSI, or INTx? */ u8 num_intrs; /* # of intr vectors */ u8 event_intr_idx; /* idx of the intr vector for event */ u8 mod_levels[VMXNET3_LINUX_MAX_MSIX_VECT]; /* moderation level */ char event_msi_vector_name[IFNAMSIZ+17]; #ifdef CONFIG_PCI_MSI struct msix_entry msix_entries[VMXNET3_LINUX_MAX_MSIX_VECT]; #endif }; /* Interrupt sharing schemes, share_intr */ #define VMXNET3_INTR_BUDDYSHARE 0 /* Corresponding tx,rx queues share irq */ #define VMXNET3_INTR_TXSHARE 1 /* All tx queues share one irq */ #define VMXNET3_INTR_DONTSHARE 2 /* each queue has its own irq */ #define VMXNET3_STATE_BIT_RESETTING 0 #define VMXNET3_STATE_BIT_QUIESCED 1 struct vmxnet3_adapter { struct vmxnet3_tx_queue tx_queue[VMXNET3_DEVICE_MAX_TX_QUEUES]; struct vmxnet3_rx_queue rx_queue[VMXNET3_DEVICE_MAX_RX_QUEUES]; unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; struct vmxnet3_intr intr; spinlock_t cmd_lock; struct Vmxnet3_DriverShared *shared; struct Vmxnet3_PMConf *pm_conf; struct Vmxnet3_TxQueueDesc *tqd_start; /* all tx queue desc */ struct Vmxnet3_RxQueueDesc *rqd_start; /* all rx queue desc */ struct net_device *netdev; struct pci_dev *pdev; u8 __iomem *hw_addr0; /* for BAR 0 */ u8 __iomem *hw_addr1; /* for BAR 1 */ u8 version; #ifdef VMXNET3_RSS struct UPT1_RSSConf *rss_conf; bool rss; #endif u32 num_rx_queues; u32 num_tx_queues; /* rx buffer related */ unsigned skb_buf_size; int rx_buf_per_pkt; /* only apply to the 1st ring */ dma_addr_t shared_pa; dma_addr_t queue_desc_pa; dma_addr_t coal_conf_pa; /* Wake-on-LAN */ u32 wol; /* Link speed */ u32 link_speed; /* in mbps */ u64 tx_timeout_count; /* Ring sizes */ u32 tx_ring_size; u32 rx_ring_size; u32 rx_ring2_size; /* Size of buffer in the data ring */ u16 txdata_desc_size; u16 rxdata_desc_size; bool rxdataring_enabled; struct work_struct work; unsigned long state; /* VMXNET3_STATE_BIT_xxx */ int share_intr; struct Vmxnet3_CoalesceScheme *coal_conf; bool default_coal_mode; dma_addr_t adapter_pa; dma_addr_t pm_conf_pa; dma_addr_t rss_conf_pa; }; #define VMXNET3_WRITE_BAR0_REG(adapter, reg, val) \ writel((val), (adapter)->hw_addr0 + (reg)) #define VMXNET3_READ_BAR0_REG(adapter, reg) \ readl((adapter)->hw_addr0 + (reg)) #define VMXNET3_WRITE_BAR1_REG(adapter, reg, val) \ writel((val), (adapter)->hw_addr1 + (reg)) #define VMXNET3_READ_BAR1_REG(adapter, reg) \ readl((adapter)->hw_addr1 + (reg)) #define VMXNET3_WAKE_QUEUE_THRESHOLD(tq) (5) #define VMXNET3_RX_ALLOC_THRESHOLD(rq, ring_idx, adapter) \ ((rq)->rx_ring[ring_idx].size >> 3) #define VMXNET3_GET_ADDR_LO(dma) ((u32)(dma)) #define VMXNET3_GET_ADDR_HI(dma) ((u32)(((u64)(dma)) >> 32)) #define VMXNET3_VERSION_GE_2(adapter) \ (adapter->version >= VMXNET3_REV_2 + 1) #define VMXNET3_VERSION_GE_3(adapter) \ (adapter->version >= VMXNET3_REV_3 + 1) /* must be a multiple of VMXNET3_RING_SIZE_ALIGN */ #define VMXNET3_DEF_TX_RING_SIZE 512 #define VMXNET3_DEF_RX_RING_SIZE 1024 #define VMXNET3_DEF_RX_RING2_SIZE 256 #define VMXNET3_DEF_RXDATA_DESC_SIZE 128 #define VMXNET3_MAX_ETH_HDR_SIZE 22 #define VMXNET3_MAX_SKB_BUF_SIZE (3*1024) #define VMXNET3_GET_RING_IDX(adapter, rqID) \ ((rqID >= adapter->num_rx_queues && \ rqID < 2 * adapter->num_rx_queues) ? 1 : 0) \ #define VMXNET3_RX_DATA_RING(adapter, rqID) \ (rqID >= 2 * adapter->num_rx_queues && \ rqID < 3 * adapter->num_rx_queues) \ #define VMXNET3_COAL_STATIC_DEFAULT_DEPTH 64 #define VMXNET3_COAL_RBC_RATE(usecs) (1000000 / usecs) #define VMXNET3_COAL_RBC_USECS(rbc_rate) (1000000 / rbc_rate) int vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter); int vmxnet3_activate_dev(struct vmxnet3_adapter *adapter); void vmxnet3_force_close(struct vmxnet3_adapter *adapter); void vmxnet3_reset_dev(struct vmxnet3_adapter *adapter); void vmxnet3_tq_destroy_all(struct vmxnet3_adapter *adapter); void vmxnet3_rq_destroy_all(struct vmxnet3_adapter *adapter); int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features); int vmxnet3_create_queues(struct vmxnet3_adapter *adapter, u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size, u16 txdata_desc_size, u16 rxdata_desc_size); void vmxnet3_set_ethtool_ops(struct net_device *netdev); void vmxnet3_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats); extern char vmxnet3_driver_name[]; #endif
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