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Location: vmkdrivers/vmkdrivers/src_9/drivers/net/vmxnet3/vmxnet3_int.h - annotation
95e39e5412bd
12.7 KiB
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ESXi-6.0-GA
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* Copyright(c) 2007-2012 VMware, Inc. All rights reserved.
*
* This file is part of vmxnet3 VMKdriver program.
*
* 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 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.
*
*/
#ifndef _VMXNET3_INT_H
#define _VMXNET3_INT_H
#include <asm/dma.h>
#include <asm/page.h>
#include <asm/uaccess.h>
#include <linux/types.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 <linux/ethtool.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/pci.h>
#include <asm/checksum.h>
#include <linux/moduleparam.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/string.h>
#include <linux/pkt_sched.h>
#include <linux/version.h>
#ifdef NETIF_F_TSO
#include <net/checksum.h>
#ifdef NETIF_F_TSO6
#include <net/ip6_checksum.h>
#endif
#endif
#include <linux/if_vlan.h>
#include <linux/inetdevice.h>
#include <net/ip.h>
#ifdef CONFIG_COMPAT
#ifndef HAVE_UNLOCKED_IOCTL
#include <linux/ioctl32.h>
#endif
#endif
typedef uint8_t uint8;
typedef uint16_t uint16;
typedef uint32_t uint32;
typedef uint64_t uint64;
typedef char Bool;
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#include "vmxnet3_defs.h"
#include "vmxnet3_version.h"
#include <linux/stddef.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) && !defined(VMXNET3_NO_NAPI)
# define VMXNET3_NAPI
#endif
#ifndef VLAN_GROUP_ARRAY_SPLIT_PARTS
#define vlan_group_get_device(vlan_grp, vid) ((vlan_grp)->vlan_devices[(vid)])
#define vlan_group_set_device(vlan_grp, vid, dev) ((vlan_grp)->vlan_devices[(vid)] = (dev))
#endif
#ifdef VMXNET3_NAPI
# ifdef VMX86_DEBUG
# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI(debug)"
# else
# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"-NAPI"
# endif
#else
# ifdef VMX86_DEBUG
# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING"(debug)"
# else
# define VMXNET3_DRIVER_VERSION_REPORT VMXNET3_DRIVER_VERSION_STRING
# endif
#endif
#if defined(CONFIG_PCI_MSI) && LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
/* RSS only makes sense if MSI-X and new NAPI is supported. */
#define VMXNET3_RSS
#endif
#define NET_IP_ALIGN 2
#define skb_transport_offset(skb) ((skb)->h.raw - (skb)->data)
#define compat_skb_network_header(skb) skb_network_header(skb)
#define skb_transport_header(skb) (skb)->h.raw
#define skb_ip_header(skb) (skb)->nh.iph
#define skb_tcp_header(skb) (skb)->h.th
#define skb_mss(skb) (skb_shinfo(skb)->gso_size)
#define skb_csum_offset(skb) (skb)->csum
#define WORK_GET_DATA(_p, _type, _member) (_type *)(_p)
#ifndef SET_NETDEV_DEV
# define SET_NETDEV_DEV(dev, pdev) do {} while (0)
#endif
#ifndef CHECKSUM_HW
# define CHECKSUM_HW CHECKSUM_PARTIAL
#endif
struct vmxnet3_cmd_ring {
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;
}
static inline Bool
vmxnet3_cmd_ring_desc_empty(struct vmxnet3_cmd_ring *ring)
{
return (ring->next2comp == ring->next2fill);
}
struct vmxnet3_comp_ring {
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 {
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;
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 */
Vmxnet3_GenericDesc *sop_txd;
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;
struct vmxnet3_tx_data_ring data_ring;
struct vmxnet3_comp_ring comp_ring;
Vmxnet3_TxQueueCtrl *shared;
struct vmxnet3_tq_driver_stats stats;
Bool stopped;
int num_stop; /* # of times the queue is
* stopped */
int qid;
} __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;
unsigned long shm_idx;
};
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_queue {
char name[IFNAMSIZ+8]; /* To identify interrupt*/
struct vmxnet3_adapter *adapter;
#ifdef VMXNET3_NAPI
struct napi_struct napi;
#endif
struct vmxnet3_cmd_ring rx_ring[2];
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 uncommitted[2]; /* # of buffers allocated since last RXPROD
* update */
struct vmxnet3_rx_buf_info *buf_info[2];
Vmxnet3_RxQueueCtrl *shared;
struct vmxnet3_rq_driver_stats stats;
struct sk_buff *spare_skb; /* starvation skb */
} __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[27/*IFNAMSIZ+11*/];
struct msix_entry msix_entries[VMXNET3_LINUX_MAX_MSIX_VECT];
};
enum {
vmxnet3_intr_noshare = 0, /* each queue has its own intr vector */
vmxnet3_intr_txshare, /* All tx queues share one intr */
vmxnet3_intr_buddyshare, /* Corresponding tx and rx queues share */
};
#ifdef VMXNET3_RSS
struct vmxnet3_rssinfo {
int indices;
int mask;
};
#endif
#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];
struct vlan_group *vlan_grp;
struct vmxnet3_intr intr;
spinlock_t cmd_lock;
Vmxnet3_DriverShared *shared;
struct UPT1_RSSConf *rss_conf;
Vmxnet3_PMConf *pm_conf;
Vmxnet3_TxQueueDesc *tqd_start; /* all tx queue desc */
Vmxnet3_RxQueueDesc *rqd_start; /* all rx queue desc */
struct net_device *netdev;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 22)
struct net_device_stats net_stats;
#endif
struct pci_dev *pdev;
u8 *hw_addr0; /* for BAR 0 */
u8 *hw_addr1; /* for BAR 1 */
/* feature control */
Bool rxcsum;
Bool lro;
Bool jumbo_frame;
#ifdef VMXNET3_RSS
Bool rss;
struct vmxnet3_rssinfo rssinfo;
#endif
uint32 num_rx_queues;
uint32 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;
/* Wake-on-LAN */
u32 wol;
/* Link speed */
u32 link_speed; /* in mbps */
u64 tx_timeout_count;
struct work_struct reset_work;
struct work_struct resize_ring_work;
unsigned long state; /* VMXNET3_STATE_BIT_xxx */
int dev_number;
Bool is_shm;
int share_intr;
struct vmxnet3_shm_pool *shm;
struct timer_list drop_check_timer;
u64 prev_oob_drop_count;
u64 prev_udp_drop_count;
u32 drop_counter;
u32 no_drop_counter;
u32 new_rx_ring_size;
u32 drop_check_delay;
Bool use_adaptive_ring;
};
struct vmxnet3_stat_desc {
char desc[ETH_GSTRING_LEN];
int offset;
};
#define VMXNET3_WRITE_BAR0_REG(adapter, reg, val) \
writel(cpu_to_le32(val), (adapter)->hw_addr0 + (reg))
#define VMXNET3_READ_BAR0_REG(adapter, reg) \
le32_to_cpu(readl((adapter)->hw_addr0 + (reg)))
#define VMXNET3_WRITE_BAR1_REG(adapter, reg, val) \
writel(cpu_to_le32(val), (adapter)->hw_addr1 + (reg))
#define VMXNET3_READ_BAR1_REG(adapter, reg) \
le32_to_cpu(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))
/* must be a multiple of VMXNET3_RING_SIZE_ALIGN */
#define VMXNET3_DEF_TX_RING_SIZE 512
#define VMXNET3_DEF_RX_RING_SIZE 256
/* FIXME: what's the right value for this? */
#define VMXNET3_MAX_ETH_HDR_SIZE 22
#define VMXNET3_MAX_SKB_BUF_SIZE (3*1024)
static inline void
set_flag_le16(__le16 *data, u16 flag)
{
*data = cpu_to_le16(le16_to_cpu(*data) | flag);
}
static inline void
set_flag_le64(__le64 *data, u64 flag)
{
*data = cpu_to_le64(le64_to_cpu(*data) | flag);
}
static inline void
reset_flag_le64(__le64 *data, u64 flag)
{
*data = cpu_to_le64(le64_to_cpu(*data) & ~flag);
}
int
vmxnet3_tq_xmit(struct sk_buff *skb, struct vmxnet3_tx_queue *tq, struct
vmxnet3_adapter *adapter, struct net_device *netdev);
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_create_queues(struct vmxnet3_adapter *adapter,
u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size);
void
vmxnet3_vlan_features(struct vmxnet3_adapter *adapter, u16 vid, Bool allvids);
int
vmxnet3_set_ringsize(struct net_device *netdev,
u32 new_tx_ring_size, u32 new_rx_ring_size);
extern void vmxnet3_set_ethtool_ops(struct net_device *netdev);
extern struct net_device_stats *vmxnet3_get_stats(struct net_device *netdev);
extern char vmxnet3_driver_name[];
#endif
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