![Ajit Khaparde](/assets/img/avatar_default.png)
GET_STATS request uses the same memory region as the response. If a new request for get stats is fired before the response for the previous get_stats request is received, the response will corrupt the new request, causing the f/w to misbehave. Signed-off-by: Somnath K <somnathk@serverengines.com> Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
422 lines
10 KiB
C
422 lines
10 KiB
C
/*
|
|
* Copyright (C) 2005 - 2010 ServerEngines
|
|
* 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 version 2
|
|
* as published by the Free Software Foundation. The full GNU General
|
|
* Public License is included in this distribution in the file called COPYING.
|
|
*
|
|
* Contact Information:
|
|
* linux-drivers@serverengines.com
|
|
*
|
|
* ServerEngines
|
|
* 209 N. Fair Oaks Ave
|
|
* Sunnyvale, CA 94085
|
|
*/
|
|
|
|
#ifndef BE_H
|
|
#define BE_H
|
|
|
|
#include <linux/pci.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/version.h>
|
|
#include <linux/delay.h>
|
|
#include <net/tcp.h>
|
|
#include <net/ip.h>
|
|
#include <net/ipv6.h>
|
|
#include <linux/if_vlan.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/firmware.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "be_hw.h"
|
|
|
|
#define DRV_VER "2.103.175u"
|
|
#define DRV_NAME "be2net"
|
|
#define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC"
|
|
#define BE3_NAME "ServerEngines BladeEngine3 10Gbps NIC"
|
|
#define OC_NAME "Emulex OneConnect 10Gbps NIC"
|
|
#define OC_NAME1 "Emulex OneConnect 10Gbps NIC (be3)"
|
|
#define DRV_DESC "ServerEngines BladeEngine 10Gbps NIC Driver"
|
|
|
|
#define BE_VENDOR_ID 0x19a2
|
|
#define BE_DEVICE_ID1 0x211
|
|
#define BE_DEVICE_ID2 0x221
|
|
#define OC_DEVICE_ID1 0x700
|
|
#define OC_DEVICE_ID2 0x710
|
|
|
|
static inline char *nic_name(struct pci_dev *pdev)
|
|
{
|
|
switch (pdev->device) {
|
|
case OC_DEVICE_ID1:
|
|
return OC_NAME;
|
|
case OC_DEVICE_ID2:
|
|
return OC_NAME1;
|
|
case BE_DEVICE_ID2:
|
|
return BE3_NAME;
|
|
default:
|
|
return BE_NAME;
|
|
}
|
|
}
|
|
|
|
/* Number of bytes of an RX frame that are copied to skb->data */
|
|
#define BE_HDR_LEN 64
|
|
#define BE_MAX_JUMBO_FRAME_SIZE 9018
|
|
#define BE_MIN_MTU 256
|
|
|
|
#define BE_NUM_VLANS_SUPPORTED 64
|
|
#define BE_MAX_EQD 96
|
|
#define BE_MAX_TX_FRAG_COUNT 30
|
|
|
|
#define EVNT_Q_LEN 1024
|
|
#define TX_Q_LEN 2048
|
|
#define TX_CQ_LEN 1024
|
|
#define RX_Q_LEN 1024 /* Does not support any other value */
|
|
#define RX_CQ_LEN 1024
|
|
#define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
|
|
#define MCC_CQ_LEN 256
|
|
|
|
#define BE_NAPI_WEIGHT 64
|
|
#define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
|
|
#define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
|
|
|
|
#define FW_VER_LEN 32
|
|
|
|
#define BE_MAX_VF 32
|
|
|
|
struct be_dma_mem {
|
|
void *va;
|
|
dma_addr_t dma;
|
|
u32 size;
|
|
};
|
|
|
|
struct be_queue_info {
|
|
struct be_dma_mem dma_mem;
|
|
u16 len;
|
|
u16 entry_size; /* Size of an element in the queue */
|
|
u16 id;
|
|
u16 tail, head;
|
|
bool created;
|
|
atomic_t used; /* Number of valid elements in the queue */
|
|
};
|
|
|
|
static inline u32 MODULO(u16 val, u16 limit)
|
|
{
|
|
BUG_ON(limit & (limit - 1));
|
|
return val & (limit - 1);
|
|
}
|
|
|
|
static inline void index_adv(u16 *index, u16 val, u16 limit)
|
|
{
|
|
*index = MODULO((*index + val), limit);
|
|
}
|
|
|
|
static inline void index_inc(u16 *index, u16 limit)
|
|
{
|
|
*index = MODULO((*index + 1), limit);
|
|
}
|
|
|
|
static inline void *queue_head_node(struct be_queue_info *q)
|
|
{
|
|
return q->dma_mem.va + q->head * q->entry_size;
|
|
}
|
|
|
|
static inline void *queue_tail_node(struct be_queue_info *q)
|
|
{
|
|
return q->dma_mem.va + q->tail * q->entry_size;
|
|
}
|
|
|
|
static inline void queue_head_inc(struct be_queue_info *q)
|
|
{
|
|
index_inc(&q->head, q->len);
|
|
}
|
|
|
|
static inline void queue_tail_inc(struct be_queue_info *q)
|
|
{
|
|
index_inc(&q->tail, q->len);
|
|
}
|
|
|
|
struct be_eq_obj {
|
|
struct be_queue_info q;
|
|
char desc[32];
|
|
|
|
/* Adaptive interrupt coalescing (AIC) info */
|
|
bool enable_aic;
|
|
u16 min_eqd; /* in usecs */
|
|
u16 max_eqd; /* in usecs */
|
|
u16 cur_eqd; /* in usecs */
|
|
|
|
struct napi_struct napi;
|
|
};
|
|
|
|
struct be_mcc_obj {
|
|
struct be_queue_info q;
|
|
struct be_queue_info cq;
|
|
bool rearm_cq;
|
|
};
|
|
|
|
struct be_drvr_stats {
|
|
u32 be_tx_reqs; /* number of TX requests initiated */
|
|
u32 be_tx_stops; /* number of times TX Q was stopped */
|
|
u32 be_fwd_reqs; /* number of send reqs through forwarding i/f */
|
|
u32 be_tx_wrbs; /* number of tx WRBs used */
|
|
u32 be_tx_events; /* number of tx completion events */
|
|
u32 be_tx_compl; /* number of tx completion entries processed */
|
|
ulong be_tx_jiffies;
|
|
u64 be_tx_bytes;
|
|
u64 be_tx_bytes_prev;
|
|
u64 be_tx_pkts;
|
|
u32 be_tx_rate;
|
|
|
|
u32 cache_barrier[16];
|
|
|
|
u32 be_ethrx_post_fail;/* number of ethrx buffer alloc failures */
|
|
u32 be_rx_polls; /* number of times NAPI called poll function */
|
|
u32 be_rx_events; /* number of ucast rx completion events */
|
|
u32 be_rx_compl; /* number of rx completion entries processed */
|
|
ulong be_rx_jiffies;
|
|
u64 be_rx_bytes;
|
|
u64 be_rx_bytes_prev;
|
|
u64 be_rx_pkts;
|
|
u32 be_rx_rate;
|
|
/* number of non ether type II frames dropped where
|
|
* frame len > length field of Mac Hdr */
|
|
u32 be_802_3_dropped_frames;
|
|
/* number of non ether type II frames malformed where
|
|
* in frame len < length field of Mac Hdr */
|
|
u32 be_802_3_malformed_frames;
|
|
u32 be_rxcp_err; /* Num rx completion entries w/ err set. */
|
|
ulong rx_fps_jiffies; /* jiffies at last FPS calc */
|
|
u32 be_rx_frags;
|
|
u32 be_prev_rx_frags;
|
|
u32 be_rx_fps; /* Rx frags per second */
|
|
};
|
|
|
|
struct be_stats_obj {
|
|
struct be_drvr_stats drvr_stats;
|
|
struct be_dma_mem cmd;
|
|
};
|
|
|
|
struct be_tx_obj {
|
|
struct be_queue_info q;
|
|
struct be_queue_info cq;
|
|
/* Remember the skbs that were transmitted */
|
|
struct sk_buff *sent_skb_list[TX_Q_LEN];
|
|
};
|
|
|
|
/* Struct to remember the pages posted for rx frags */
|
|
struct be_rx_page_info {
|
|
struct page *page;
|
|
DEFINE_DMA_UNMAP_ADDR(bus);
|
|
u16 page_offset;
|
|
bool last_page_user;
|
|
};
|
|
|
|
struct be_rx_obj {
|
|
struct be_queue_info q;
|
|
struct be_queue_info cq;
|
|
struct be_rx_page_info page_info_tbl[RX_Q_LEN];
|
|
};
|
|
|
|
struct be_vf_cfg {
|
|
unsigned char vf_mac_addr[ETH_ALEN];
|
|
u32 vf_if_handle;
|
|
u32 vf_pmac_id;
|
|
u16 vf_vlan_tag;
|
|
u32 vf_tx_rate;
|
|
};
|
|
|
|
#define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */
|
|
#define BE_INVALID_PMAC_ID 0xffffffff
|
|
struct be_adapter {
|
|
struct pci_dev *pdev;
|
|
struct net_device *netdev;
|
|
|
|
u8 __iomem *csr;
|
|
u8 __iomem *db; /* Door Bell */
|
|
u8 __iomem *pcicfg; /* PCI config space */
|
|
|
|
spinlock_t mbox_lock; /* For serializing mbox cmds to BE card */
|
|
struct be_dma_mem mbox_mem;
|
|
/* Mbox mem is adjusted to align to 16 bytes. The allocated addr
|
|
* is stored for freeing purpose */
|
|
struct be_dma_mem mbox_mem_alloced;
|
|
|
|
struct be_mcc_obj mcc_obj;
|
|
spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
|
|
spinlock_t mcc_cq_lock;
|
|
|
|
struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS];
|
|
bool msix_enabled;
|
|
bool isr_registered;
|
|
|
|
/* TX Rings */
|
|
struct be_eq_obj tx_eq;
|
|
struct be_tx_obj tx_obj;
|
|
|
|
u32 cache_line_break[8];
|
|
|
|
/* Rx rings */
|
|
struct be_eq_obj rx_eq;
|
|
struct be_rx_obj rx_obj;
|
|
u32 big_page_size; /* Compounded page size shared by rx wrbs */
|
|
bool rx_post_starved; /* Zero rx frags have been posted to BE */
|
|
|
|
struct vlan_group *vlan_grp;
|
|
u16 vlans_added;
|
|
u16 max_vlans; /* Number of vlans supported */
|
|
u8 vlan_tag[VLAN_GROUP_ARRAY_LEN];
|
|
struct be_dma_mem mc_cmd_mem;
|
|
|
|
struct be_stats_obj stats;
|
|
/* Work queue used to perform periodic tasks like getting statistics */
|
|
struct delayed_work work;
|
|
|
|
/* Ethtool knobs and info */
|
|
bool rx_csum; /* BE card must perform rx-checksumming */
|
|
char fw_ver[FW_VER_LEN];
|
|
u32 if_handle; /* Used to configure filtering */
|
|
u32 pmac_id; /* MAC addr handle used by BE card */
|
|
|
|
bool eeh_err;
|
|
bool link_up;
|
|
u32 port_num;
|
|
bool promiscuous;
|
|
bool wol;
|
|
u32 function_mode;
|
|
u32 rx_fc; /* Rx flow control */
|
|
u32 tx_fc; /* Tx flow control */
|
|
bool ue_detected;
|
|
bool stats_ioctl_sent;
|
|
int link_speed;
|
|
u8 port_type;
|
|
u8 transceiver;
|
|
u8 autoneg;
|
|
u8 generation; /* BladeEngine ASIC generation */
|
|
u32 flash_status;
|
|
struct completion flash_compl;
|
|
|
|
bool sriov_enabled;
|
|
struct be_vf_cfg vf_cfg[BE_MAX_VF];
|
|
u8 base_eq_id;
|
|
u8 is_virtfn;
|
|
};
|
|
|
|
#define be_physfn(adapter) (!adapter->is_virtfn)
|
|
|
|
/* BladeEngine Generation numbers */
|
|
#define BE_GEN2 2
|
|
#define BE_GEN3 3
|
|
|
|
extern const struct ethtool_ops be_ethtool_ops;
|
|
|
|
#define drvr_stats(adapter) (&adapter->stats.drvr_stats)
|
|
|
|
#define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
|
|
|
|
#define PAGE_SHIFT_4K 12
|
|
#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
|
|
|
|
/* Returns number of pages spanned by the data starting at the given addr */
|
|
#define PAGES_4K_SPANNED(_address, size) \
|
|
((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
|
|
(size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
|
|
|
|
/* Byte offset into the page corresponding to given address */
|
|
#define OFFSET_IN_PAGE(addr) \
|
|
((size_t)(addr) & (PAGE_SIZE_4K-1))
|
|
|
|
/* Returns bit offset within a DWORD of a bitfield */
|
|
#define AMAP_BIT_OFFSET(_struct, field) \
|
|
(((size_t)&(((_struct *)0)->field))%32)
|
|
|
|
/* Returns the bit mask of the field that is NOT shifted into location. */
|
|
static inline u32 amap_mask(u32 bitsize)
|
|
{
|
|
return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
|
|
}
|
|
|
|
static inline void
|
|
amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
|
|
{
|
|
u32 *dw = (u32 *) ptr + dw_offset;
|
|
*dw &= ~(mask << offset);
|
|
*dw |= (mask & value) << offset;
|
|
}
|
|
|
|
#define AMAP_SET_BITS(_struct, field, ptr, val) \
|
|
amap_set(ptr, \
|
|
offsetof(_struct, field)/32, \
|
|
amap_mask(sizeof(((_struct *)0)->field)), \
|
|
AMAP_BIT_OFFSET(_struct, field), \
|
|
val)
|
|
|
|
static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
|
|
{
|
|
u32 *dw = (u32 *) ptr;
|
|
return mask & (*(dw + dw_offset) >> offset);
|
|
}
|
|
|
|
#define AMAP_GET_BITS(_struct, field, ptr) \
|
|
amap_get(ptr, \
|
|
offsetof(_struct, field)/32, \
|
|
amap_mask(sizeof(((_struct *)0)->field)), \
|
|
AMAP_BIT_OFFSET(_struct, field))
|
|
|
|
#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
|
|
#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
|
|
static inline void swap_dws(void *wrb, int len)
|
|
{
|
|
#ifdef __BIG_ENDIAN
|
|
u32 *dw = wrb;
|
|
BUG_ON(len % 4);
|
|
do {
|
|
*dw = cpu_to_le32(*dw);
|
|
dw++;
|
|
len -= 4;
|
|
} while (len);
|
|
#endif /* __BIG_ENDIAN */
|
|
}
|
|
|
|
static inline u8 is_tcp_pkt(struct sk_buff *skb)
|
|
{
|
|
u8 val = 0;
|
|
|
|
if (ip_hdr(skb)->version == 4)
|
|
val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
|
|
else if (ip_hdr(skb)->version == 6)
|
|
val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
|
|
|
|
return val;
|
|
}
|
|
|
|
static inline u8 is_udp_pkt(struct sk_buff *skb)
|
|
{
|
|
u8 val = 0;
|
|
|
|
if (ip_hdr(skb)->version == 4)
|
|
val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
|
|
else if (ip_hdr(skb)->version == 6)
|
|
val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
|
|
|
|
return val;
|
|
}
|
|
|
|
static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
|
|
{
|
|
u8 data;
|
|
|
|
pci_write_config_byte(adapter->pdev, 0xFE, 0xAA);
|
|
pci_read_config_byte(adapter->pdev, 0xFE, &data);
|
|
adapter->is_virtfn = (data != 0xAA);
|
|
}
|
|
|
|
extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
|
|
u16 num_popped);
|
|
extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
|
|
extern void netdev_stats_update(struct be_adapter *adapter);
|
|
extern int be_load_fw(struct be_adapter *adapter, u8 *func);
|
|
#endif /* BE_H */
|