blob: 09610323a948cab243d083c1a8435853b8893184 [file] [log] [blame]
/* cnic.c: Broadcom CNIC core network driver.
*
* Copyright (c) 2006-2010 Broadcom Corporation
*
* 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.
*
* Original skeleton written by: John(Zongxi) Chen (zongxi@broadcom.com)
* Modified and maintained by: Michael Chan <mchan@broadcom.com>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/uio_driver.h>
#include <linux/in.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
#define BCM_VLAN 1
#endif
#include <net/ip.h>
#include <net/tcp.h>
#include <net/route.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
#include <net/ip6_checksum.h>
#include <scsi/iscsi_if.h>
#include "cnic_if.h"
#include "bnx2.h"
#include "bnx2x/bnx2x_reg.h"
#include "bnx2x/bnx2x_fw_defs.h"
#include "bnx2x/bnx2x_hsi.h"
#include "../scsi/bnx2i/57xx_iscsi_constants.h"
#include "../scsi/bnx2i/57xx_iscsi_hsi.h"
#include "cnic.h"
#include "cnic_defs.h"
#define DRV_MODULE_NAME "cnic"
static char version[] __devinitdata =
"Broadcom NetXtreme II CNIC Driver " DRV_MODULE_NAME " v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
"Chen (zongxi@broadcom.com");
MODULE_DESCRIPTION("Broadcom NetXtreme II CNIC Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(CNIC_MODULE_VERSION);
static LIST_HEAD(cnic_dev_list);
static DEFINE_RWLOCK(cnic_dev_lock);
static DEFINE_MUTEX(cnic_lock);
static struct cnic_ulp_ops *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
static int cnic_service_bnx2(void *, void *);
static int cnic_service_bnx2x(void *, void *);
static int cnic_ctl(void *, struct cnic_ctl_info *);
static struct cnic_ops cnic_bnx2_ops = {
.cnic_owner = THIS_MODULE,
.cnic_handler = cnic_service_bnx2,
.cnic_ctl = cnic_ctl,
};
static struct cnic_ops cnic_bnx2x_ops = {
.cnic_owner = THIS_MODULE,
.cnic_handler = cnic_service_bnx2x,
.cnic_ctl = cnic_ctl,
};
static void cnic_shutdown_rings(struct cnic_dev *);
static void cnic_init_rings(struct cnic_dev *);
static int cnic_cm_set_pg(struct cnic_sock *);
static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
{
struct cnic_dev *dev = uinfo->priv;
struct cnic_local *cp = dev->cnic_priv;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (cp->uio_dev != -1)
return -EBUSY;
rtnl_lock();
if (!test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
rtnl_unlock();
return -ENODEV;
}
cp->uio_dev = iminor(inode);
cnic_init_rings(dev);
rtnl_unlock();
return 0;
}
static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
{
struct cnic_dev *dev = uinfo->priv;
struct cnic_local *cp = dev->cnic_priv;
cnic_shutdown_rings(dev);
cp->uio_dev = -1;
return 0;
}
static inline void cnic_hold(struct cnic_dev *dev)
{
atomic_inc(&dev->ref_count);
}
static inline void cnic_put(struct cnic_dev *dev)
{
atomic_dec(&dev->ref_count);
}
static inline void csk_hold(struct cnic_sock *csk)
{
atomic_inc(&csk->ref_count);
}
static inline void csk_put(struct cnic_sock *csk)
{
atomic_dec(&csk->ref_count);
}
static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
{
struct cnic_dev *cdev;
read_lock(&cnic_dev_lock);
list_for_each_entry(cdev, &cnic_dev_list, list) {
if (netdev == cdev->netdev) {
cnic_hold(cdev);
read_unlock(&cnic_dev_lock);
return cdev;
}
}
read_unlock(&cnic_dev_lock);
return NULL;
}
static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
{
atomic_inc(&ulp_ops->ref_count);
}
static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
{
atomic_dec(&ulp_ops->ref_count);
}
static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
struct drv_ctl_info info;
struct drv_ctl_io *io = &info.data.io;
info.cmd = DRV_CTL_CTX_WR_CMD;
io->cid_addr = cid_addr;
io->offset = off;
io->data = val;
ethdev->drv_ctl(dev->netdev, &info);
}
static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
struct drv_ctl_info info;
struct drv_ctl_io *io = &info.data.io;
info.cmd = DRV_CTL_CTXTBL_WR_CMD;
io->offset = off;
io->dma_addr = addr;
ethdev->drv_ctl(dev->netdev, &info);
}
static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
struct drv_ctl_info info;
struct drv_ctl_l2_ring *ring = &info.data.ring;
if (start)
info.cmd = DRV_CTL_START_L2_CMD;
else
info.cmd = DRV_CTL_STOP_L2_CMD;
ring->cid = cid;
ring->client_id = cl_id;
ethdev->drv_ctl(dev->netdev, &info);
}
static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
struct drv_ctl_info info;
struct drv_ctl_io *io = &info.data.io;
info.cmd = DRV_CTL_IO_WR_CMD;
io->offset = off;
io->data = val;
ethdev->drv_ctl(dev->netdev, &info);
}
static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
struct drv_ctl_info info;
struct drv_ctl_io *io = &info.data.io;
info.cmd = DRV_CTL_IO_RD_CMD;
io->offset = off;
ethdev->drv_ctl(dev->netdev, &info);
return io->data;
}
static int cnic_in_use(struct cnic_sock *csk)
{
return test_bit(SK_F_INUSE, &csk->flags);
}
static void cnic_kwq_completion(struct cnic_dev *dev, u32 count)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
struct drv_ctl_info info;
info.cmd = DRV_CTL_COMPLETION_CMD;
info.data.comp.comp_count = count;
ethdev->drv_ctl(dev->netdev, &info);
}
static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
{
u32 i;
for (i = 0; i < cp->max_cid_space; i++) {
if (cp->ctx_tbl[i].cid == cid) {
*l5_cid = i;
return 0;
}
}
return -EINVAL;
}
static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
struct cnic_sock *csk)
{
struct iscsi_path path_req;
char *buf = NULL;
u16 len = 0;
u32 msg_type = ISCSI_KEVENT_IF_DOWN;
struct cnic_ulp_ops *ulp_ops;
if (cp->uio_dev == -1)
return -ENODEV;
if (csk) {
len = sizeof(path_req);
buf = (char *) &path_req;
memset(&path_req, 0, len);
msg_type = ISCSI_KEVENT_PATH_REQ;
path_req.handle = (u64) csk->l5_cid;
if (test_bit(SK_F_IPV6, &csk->flags)) {
memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
sizeof(struct in6_addr));
path_req.ip_addr_len = 16;
} else {
memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
sizeof(struct in_addr));
path_req.ip_addr_len = 4;
}
path_req.vlan_id = csk->vlan_id;
path_req.pmtu = csk->mtu;
}
rcu_read_lock();
ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
if (ulp_ops)
ulp_ops->iscsi_nl_send_msg(cp->dev, msg_type, buf, len);
rcu_read_unlock();
return 0;
}
static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
char *buf, u16 len)
{
int rc = -EINVAL;
switch (msg_type) {
case ISCSI_UEVENT_PATH_UPDATE: {
struct cnic_local *cp;
u32 l5_cid;
struct cnic_sock *csk;
struct iscsi_path *path_resp;
if (len < sizeof(*path_resp))
break;
path_resp = (struct iscsi_path *) buf;
cp = dev->cnic_priv;
l5_cid = (u32) path_resp->handle;
if (l5_cid >= MAX_CM_SK_TBL_SZ)
break;
rcu_read_lock();
if (!rcu_dereference(cp->ulp_ops[CNIC_ULP_L4])) {
rc = -ENODEV;
rcu_read_unlock();
break;
}
csk = &cp->csk_tbl[l5_cid];
csk_hold(csk);
if (cnic_in_use(csk)) {
memcpy(csk->ha, path_resp->mac_addr, 6);
if (test_bit(SK_F_IPV6, &csk->flags))
memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
sizeof(struct in6_addr));
else
memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
sizeof(struct in_addr));
if (is_valid_ether_addr(csk->ha))
cnic_cm_set_pg(csk);
}
csk_put(csk);
rcu_read_unlock();
rc = 0;
}
}
return rc;
}
static int cnic_offld_prep(struct cnic_sock *csk)
{
if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
return 0;
if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
return 0;
}
return 1;
}
static int cnic_close_prep(struct cnic_sock *csk)
{
clear_bit(SK_F_CONNECT_START, &csk->flags);
smp_mb__after_clear_bit();
if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
msleep(1);
return 1;
}
return 0;
}
static int cnic_abort_prep(struct cnic_sock *csk)
{
clear_bit(SK_F_CONNECT_START, &csk->flags);
smp_mb__after_clear_bit();
while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
msleep(1);
if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
return 1;
}
return 0;
}
static void cnic_uio_stop(void)
{
struct cnic_dev *dev;
read_lock(&cnic_dev_lock);
list_for_each_entry(dev, &cnic_dev_list, list) {
struct cnic_local *cp = dev->cnic_priv;
if (cp->cnic_uinfo)
cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
}
read_unlock(&cnic_dev_lock);
}
int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
{
struct cnic_dev *dev;
if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
pr_err("%s: Bad type %d\n", __func__, ulp_type);
return -EINVAL;
}
mutex_lock(&cnic_lock);
if (cnic_ulp_tbl[ulp_type]) {
pr_err("%s: Type %d has already been registered\n",
__func__, ulp_type);
mutex_unlock(&cnic_lock);
return -EBUSY;
}
read_lock(&cnic_dev_lock);
list_for_each_entry(dev, &cnic_dev_list, list) {
struct cnic_local *cp = dev->cnic_priv;
clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
}
read_unlock(&cnic_dev_lock);
atomic_set(&ulp_ops->ref_count, 0);
rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
mutex_unlock(&cnic_lock);
/* Prevent race conditions with netdev_event */
rtnl_lock();
read_lock(&cnic_dev_lock);
list_for_each_entry(dev, &cnic_dev_list, list) {
struct cnic_local *cp = dev->cnic_priv;
if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
ulp_ops->cnic_init(dev);
}
read_unlock(&cnic_dev_lock);
rtnl_unlock();
return 0;
}
int cnic_unregister_driver(int ulp_type)
{
struct cnic_dev *dev;
struct cnic_ulp_ops *ulp_ops;
int i = 0;
if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
pr_err("%s: Bad type %d\n", __func__, ulp_type);
return -EINVAL;
}
mutex_lock(&cnic_lock);
ulp_ops = cnic_ulp_tbl[ulp_type];
if (!ulp_ops) {
pr_err("%s: Type %d has not been registered\n",
__func__, ulp_type);
goto out_unlock;
}
read_lock(&cnic_dev_lock);
list_for_each_entry(dev, &cnic_dev_list, list) {
struct cnic_local *cp = dev->cnic_priv;
if (rcu_dereference(cp->ulp_ops[ulp_type])) {
pr_err("%s: Type %d still has devices registered\n",
__func__, ulp_type);
read_unlock(&cnic_dev_lock);
goto out_unlock;
}
}
read_unlock(&cnic_dev_lock);
if (ulp_type == CNIC_ULP_ISCSI)
cnic_uio_stop();
rcu_assign_pointer(cnic_ulp_tbl[ulp_type], NULL);
mutex_unlock(&cnic_lock);
synchronize_rcu();
while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
msleep(100);
i++;
}
if (atomic_read(&ulp_ops->ref_count) != 0)
netdev_warn(dev->netdev, "Failed waiting for ref count to go to zero\n");
return 0;
out_unlock:
mutex_unlock(&cnic_lock);
return -EINVAL;
}
static int cnic_start_hw(struct cnic_dev *);
static void cnic_stop_hw(struct cnic_dev *);
static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
void *ulp_ctx)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_ulp_ops *ulp_ops;
if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
pr_err("%s: Bad type %d\n", __func__, ulp_type);
return -EINVAL;
}
mutex_lock(&cnic_lock);
if (cnic_ulp_tbl[ulp_type] == NULL) {
pr_err("%s: Driver with type %d has not been registered\n",
__func__, ulp_type);
mutex_unlock(&cnic_lock);
return -EAGAIN;
}
if (rcu_dereference(cp->ulp_ops[ulp_type])) {
pr_err("%s: Type %d has already been registered to this device\n",
__func__, ulp_type);
mutex_unlock(&cnic_lock);
return -EBUSY;
}
clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
cp->ulp_handle[ulp_type] = ulp_ctx;
ulp_ops = cnic_ulp_tbl[ulp_type];
rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
cnic_hold(dev);
if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
mutex_unlock(&cnic_lock);
return 0;
}
EXPORT_SYMBOL(cnic_register_driver);
static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
{
struct cnic_local *cp = dev->cnic_priv;
int i = 0;
if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
pr_err("%s: Bad type %d\n", __func__, ulp_type);
return -EINVAL;
}
mutex_lock(&cnic_lock);
if (rcu_dereference(cp->ulp_ops[ulp_type])) {
rcu_assign_pointer(cp->ulp_ops[ulp_type], NULL);
cnic_put(dev);
} else {
pr_err("%s: device not registered to this ulp type %d\n",
__func__, ulp_type);
mutex_unlock(&cnic_lock);
return -EINVAL;
}
mutex_unlock(&cnic_lock);
synchronize_rcu();
while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
i < 20) {
msleep(100);
i++;
}
if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
return 0;
}
EXPORT_SYMBOL(cnic_unregister_driver);
static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id)
{
id_tbl->start = start_id;
id_tbl->max = size;
id_tbl->next = 0;
spin_lock_init(&id_tbl->lock);
id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL);
if (!id_tbl->table)
return -ENOMEM;
return 0;
}
static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
{
kfree(id_tbl->table);
id_tbl->table = NULL;
}
static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
{
int ret = -1;
id -= id_tbl->start;
if (id >= id_tbl->max)
return ret;
spin_lock(&id_tbl->lock);
if (!test_bit(id, id_tbl->table)) {
set_bit(id, id_tbl->table);
ret = 0;
}
spin_unlock(&id_tbl->lock);
return ret;
}
/* Returns -1 if not successful */
static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
{
u32 id;
spin_lock(&id_tbl->lock);
id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
if (id >= id_tbl->max) {
id = -1;
if (id_tbl->next != 0) {
id = find_first_zero_bit(id_tbl->table, id_tbl->next);
if (id >= id_tbl->next)
id = -1;
}
}
if (id < id_tbl->max) {
set_bit(id, id_tbl->table);
id_tbl->next = (id + 1) & (id_tbl->max - 1);
id += id_tbl->start;
}
spin_unlock(&id_tbl->lock);
return id;
}
static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
{
if (id == -1)
return;
id -= id_tbl->start;
if (id >= id_tbl->max)
return;
clear_bit(id, id_tbl->table);
}
static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
{
int i;
if (!dma->pg_arr)
return;
for (i = 0; i < dma->num_pages; i++) {
if (dma->pg_arr[i]) {
dma_free_coherent(&dev->pcidev->dev, BCM_PAGE_SIZE,
dma->pg_arr[i], dma->pg_map_arr[i]);
dma->pg_arr[i] = NULL;
}
}
if (dma->pgtbl) {
dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
dma->pgtbl, dma->pgtbl_map);
dma->pgtbl = NULL;
}
kfree(dma->pg_arr);
dma->pg_arr = NULL;
dma->num_pages = 0;
}
static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
{
int i;
u32 *page_table = dma->pgtbl;
for (i = 0; i < dma->num_pages; i++) {
/* Each entry needs to be in big endian format. */
*page_table = (u32) ((u64) dma->pg_map_arr[i] >> 32);
page_table++;
*page_table = (u32) dma->pg_map_arr[i];
page_table++;
}
}
static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
{
int i;
u32 *page_table = dma->pgtbl;
for (i = 0; i < dma->num_pages; i++) {
/* Each entry needs to be in little endian format. */
*page_table = dma->pg_map_arr[i] & 0xffffffff;
page_table++;
*page_table = (u32) ((u64) dma->pg_map_arr[i] >> 32);
page_table++;
}
}
static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
int pages, int use_pg_tbl)
{
int i, size;
struct cnic_local *cp = dev->cnic_priv;
size = pages * (sizeof(void *) + sizeof(dma_addr_t));
dma->pg_arr = kzalloc(size, GFP_ATOMIC);
if (dma->pg_arr == NULL)
return -ENOMEM;
dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
dma->num_pages = pages;
for (i = 0; i < pages; i++) {
dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
BCM_PAGE_SIZE,
&dma->pg_map_arr[i],
GFP_ATOMIC);
if (dma->pg_arr[i] == NULL)
goto error;
}
if (!use_pg_tbl)
return 0;
dma->pgtbl_size = ((pages * 8) + BCM_PAGE_SIZE - 1) &
~(BCM_PAGE_SIZE - 1);
dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
&dma->pgtbl_map, GFP_ATOMIC);
if (dma->pgtbl == NULL)
goto error;
cp->setup_pgtbl(dev, dma);
return 0;
error:
cnic_free_dma(dev, dma);
return -ENOMEM;
}
static void cnic_free_context(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
int i;
for (i = 0; i < cp->ctx_blks; i++) {
if (cp->ctx_arr[i].ctx) {
dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
cp->ctx_arr[i].ctx,
cp->ctx_arr[i].mapping);
cp->ctx_arr[i].ctx = NULL;
}
}
}
static void cnic_free_resc(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
int i = 0;
if (cp->cnic_uinfo) {
while (cp->uio_dev != -1 && i < 15) {
msleep(100);
i++;
}
uio_unregister_device(cp->cnic_uinfo);
kfree(cp->cnic_uinfo);
cp->cnic_uinfo = NULL;
}
if (cp->l2_buf) {
dma_free_coherent(&dev->pcidev->dev, cp->l2_buf_size,
cp->l2_buf, cp->l2_buf_map);
cp->l2_buf = NULL;
}
if (cp->l2_ring) {
dma_free_coherent(&dev->pcidev->dev, cp->l2_ring_size,
cp->l2_ring, cp->l2_ring_map);
cp->l2_ring = NULL;
}
cnic_free_context(dev);
kfree(cp->ctx_arr);
cp->ctx_arr = NULL;
cp->ctx_blks = 0;
cnic_free_dma(dev, &cp->gbl_buf_info);
cnic_free_dma(dev, &cp->conn_buf_info);
cnic_free_dma(dev, &cp->kwq_info);
cnic_free_dma(dev, &cp->kwq_16_data_info);
cnic_free_dma(dev, &cp->kcq1.dma);
kfree(cp->iscsi_tbl);
cp->iscsi_tbl = NULL;
kfree(cp->ctx_tbl);
cp->ctx_tbl = NULL;
cnic_free_id_tbl(&cp->cid_tbl);
}
static int cnic_alloc_context(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
if (CHIP_NUM(cp) == CHIP_NUM_5709) {
int i, k, arr_size;
cp->ctx_blk_size = BCM_PAGE_SIZE;
cp->cids_per_blk = BCM_PAGE_SIZE / 128;
arr_size = BNX2_MAX_CID / cp->cids_per_blk *
sizeof(struct cnic_ctx);
cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
if (cp->ctx_arr == NULL)
return -ENOMEM;
k = 0;
for (i = 0; i < 2; i++) {
u32 j, reg, off, lo, hi;
if (i == 0)
off = BNX2_PG_CTX_MAP;
else
off = BNX2_ISCSI_CTX_MAP;
reg = cnic_reg_rd_ind(dev, off);
lo = reg >> 16;
hi = reg & 0xffff;
for (j = lo; j < hi; j += cp->cids_per_blk, k++)
cp->ctx_arr[k].cid = j;
}
cp->ctx_blks = k;
if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
cp->ctx_blks = 0;
return -ENOMEM;
}
for (i = 0; i < cp->ctx_blks; i++) {
cp->ctx_arr[i].ctx =
dma_alloc_coherent(&dev->pcidev->dev,
BCM_PAGE_SIZE,
&cp->ctx_arr[i].mapping,
GFP_KERNEL);
if (cp->ctx_arr[i].ctx == NULL)
return -ENOMEM;
}
}
return 0;
}
static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info)
{
int err, i, is_bnx2 = 0;
struct kcqe **kcq;
if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags))
is_bnx2 = 1;
err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, is_bnx2);
if (err)
return err;
kcq = (struct kcqe **) info->dma.pg_arr;
info->kcq = kcq;
if (is_bnx2)
return 0;
for (i = 0; i < KCQ_PAGE_CNT; i++) {
struct bnx2x_bd_chain_next *next =
(struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
int j = i + 1;
if (j >= KCQ_PAGE_CNT)
j = 0;
next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
}
return 0;
}
static int cnic_alloc_l2_rings(struct cnic_dev *dev, int pages)
{
struct cnic_local *cp = dev->cnic_priv;
cp->l2_ring_size = pages * BCM_PAGE_SIZE;
cp->l2_ring = dma_alloc_coherent(&dev->pcidev->dev, cp->l2_ring_size,
&cp->l2_ring_map,
GFP_KERNEL | __GFP_COMP);
if (!cp->l2_ring)
return -ENOMEM;
cp->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
cp->l2_buf_size = PAGE_ALIGN(cp->l2_buf_size);
cp->l2_buf = dma_alloc_coherent(&dev->pcidev->dev, cp->l2_buf_size,
&cp->l2_buf_map,
GFP_KERNEL | __GFP_COMP);
if (!cp->l2_buf)
return -ENOMEM;
return 0;
}
static int cnic_alloc_uio(struct cnic_dev *dev) {
struct cnic_local *cp = dev->cnic_priv;
struct uio_info *uinfo;
int ret;
uinfo = kzalloc(sizeof(*uinfo), GFP_ATOMIC);
if (!uinfo)
return -ENOMEM;
uinfo->mem[0].addr = dev->netdev->base_addr;
uinfo->mem[0].internal_addr = dev->regview;
uinfo->mem[0].size = dev->netdev->mem_end - dev->netdev->mem_start;
uinfo->mem[0].memtype = UIO_MEM_PHYS;
if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
PAGE_MASK;
if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
else
uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
uinfo->name = "bnx2_cnic";
} else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
PAGE_MASK;
uinfo->mem[1].size = sizeof(struct host_def_status_block);
uinfo->name = "bnx2x_cnic";
}
uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
uinfo->mem[2].addr = (unsigned long) cp->l2_ring;
uinfo->mem[2].size = cp->l2_ring_size;
uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
uinfo->mem[3].addr = (unsigned long) cp->l2_buf;
uinfo->mem[3].size = cp->l2_buf_size;
uinfo->mem[3].memtype = UIO_MEM_LOGICAL;
uinfo->version = CNIC_MODULE_VERSION;
uinfo->irq = UIO_IRQ_CUSTOM;
uinfo->open = cnic_uio_open;
uinfo->release = cnic_uio_close;
uinfo->priv = dev;
ret = uio_register_device(&dev->pcidev->dev, uinfo);
if (ret) {
kfree(uinfo);
return ret;
}
cp->cnic_uinfo = uinfo;
return 0;
}
static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
int ret;
ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
if (ret)
goto error;
cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
ret = cnic_alloc_kcq(dev, &cp->kcq1);
if (ret)
goto error;
ret = cnic_alloc_context(dev);
if (ret)
goto error;
ret = cnic_alloc_l2_rings(dev, 2);
if (ret)
goto error;
ret = cnic_alloc_uio(dev);
if (ret)
goto error;
return 0;
error:
cnic_free_resc(dev);
return ret;
}
static int cnic_alloc_bnx2x_context(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
int ctx_blk_size = cp->ethdev->ctx_blk_size;
int total_mem, blks, i;
total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
blks = total_mem / ctx_blk_size;
if (total_mem % ctx_blk_size)
blks++;
if (blks > cp->ethdev->ctx_tbl_len)
return -ENOMEM;
cp->ctx_arr = kzalloc(blks * sizeof(struct cnic_ctx), GFP_KERNEL);
if (cp->ctx_arr == NULL)
return -ENOMEM;
cp->ctx_blks = blks;
cp->ctx_blk_size = ctx_blk_size;
if (BNX2X_CHIP_IS_E1H(cp->chip_id))
cp->ctx_align = 0;
else
cp->ctx_align = ctx_blk_size;
cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
for (i = 0; i < blks; i++) {
cp->ctx_arr[i].ctx =
dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
&cp->ctx_arr[i].mapping,
GFP_KERNEL);
if (cp->ctx_arr[i].ctx == NULL)
return -ENOMEM;
if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
cnic_free_context(dev);
cp->ctx_blk_size += cp->ctx_align;
i = -1;
continue;
}
}
}
return 0;
}
static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
u32 start_cid = ethdev->starting_cid;
int i, j, n, ret, pages;
struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
cp->max_cid_space = MAX_ISCSI_TBL_SZ;
cp->iscsi_start_cid = start_cid;
if (start_cid < BNX2X_ISCSI_START_CID) {
u32 delta = BNX2X_ISCSI_START_CID - start_cid;
cp->iscsi_start_cid = BNX2X_ISCSI_START_CID;
cp->max_cid_space += delta;
}
cp->iscsi_tbl = kzalloc(sizeof(struct cnic_iscsi) * MAX_ISCSI_TBL_SZ,
GFP_KERNEL);
if (!cp->iscsi_tbl)
goto error;
cp->ctx_tbl = kzalloc(sizeof(struct cnic_context) *
cp->max_cid_space, GFP_KERNEL);
if (!cp->ctx_tbl)
goto error;
for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) {
cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i];
cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI;
}
pages = PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
PAGE_SIZE;
ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
if (ret)
return -ENOMEM;
n = PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
for (i = 0, j = 0; i < cp->max_cid_space; i++) {
long off = CNIC_KWQ16_DATA_SIZE * (i % n);
cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off;
cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] +
off;
if ((i % n) == (n - 1))
j++;
}
ret = cnic_alloc_kcq(dev, &cp->kcq1);
if (ret)
goto error;
pages = PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS *
BNX2X_ISCSI_CONN_BUF_SIZE) / PAGE_SIZE;
ret = cnic_alloc_dma(dev, &cp->conn_buf_info, pages, 1);
if (ret)
goto error;
pages = PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / PAGE_SIZE;
ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0);
if (ret)
goto error;
ret = cnic_alloc_bnx2x_context(dev);
if (ret)
goto error;
cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
memset(cp->status_blk.bnx2x, 0, sizeof(*cp->status_blk.bnx2x));
cp->l2_rx_ring_size = 15;
ret = cnic_alloc_l2_rings(dev, 4);
if (ret)
goto error;
ret = cnic_alloc_uio(dev);
if (ret)
goto error;
return 0;
error:
cnic_free_resc(dev);
return -ENOMEM;
}
static inline u32 cnic_kwq_avail(struct cnic_local *cp)
{
return cp->max_kwq_idx -
((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx);
}
static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
u32 num_wqes)
{
struct cnic_local *cp = dev->cnic_priv;
struct kwqe *prod_qe;
u16 prod, sw_prod, i;
if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
return -EAGAIN; /* bnx2 is down */
spin_lock_bh(&cp->cnic_ulp_lock);
if (num_wqes > cnic_kwq_avail(cp) &&
!test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) {
spin_unlock_bh(&cp->cnic_ulp_lock);
return -EAGAIN;
}
clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
prod = cp->kwq_prod_idx;
sw_prod = prod & MAX_KWQ_IDX;
for (i = 0; i < num_wqes; i++) {
prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)];
memcpy(prod_qe, wqes[i], sizeof(struct kwqe));
prod++;
sw_prod = prod & MAX_KWQ_IDX;
}
cp->kwq_prod_idx = prod;
CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx);
spin_unlock_bh(&cp->cnic_ulp_lock);
return 0;
}
static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid,
union l5cm_specific_data *l5_data)
{
struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
dma_addr_t map;
map = ctx->kwqe_data_mapping;
l5_data->phy_address.lo = (u64) map & 0xffffffff;
l5_data->phy_address.hi = (u64) map >> 32;
return ctx->kwqe_data;
}
static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid,
u32 type, union l5cm_specific_data *l5_data)
{
struct cnic_local *cp = dev->cnic_priv;
struct l5cm_spe kwqe;
struct kwqe_16 *kwq[1];
int ret;
kwqe.hdr.conn_and_cmd_data =
cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
BNX2X_HW_CID(cid, cp->func)));
kwqe.hdr.type = cpu_to_le16(type);
kwqe.hdr.reserved = 0;
kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
kwq[0] = (struct kwqe_16 *) &kwqe;
spin_lock_bh(&cp->cnic_ulp_lock);
ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
spin_unlock_bh(&cp->cnic_ulp_lock);
if (ret == 1)
return 0;
return -EBUSY;
}
static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
struct kcqe *cqes[], u32 num_cqes)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_ulp_ops *ulp_ops;
rcu_read_lock();
ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
if (likely(ulp_ops)) {
ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
cqes, num_cqes);
}
rcu_read_unlock();
}
static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct cnic_local *cp = dev->cnic_priv;
struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
int func = cp->func, pages;
int hq_bds;
cp->num_iscsi_tasks = req1->num_tasks_per_conn;
cp->num_ccells = req1->num_ccells_per_conn;
cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
cp->num_iscsi_tasks;
cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
BNX2X_ISCSI_R2TQE_SIZE;
cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
hq_bds = pages * (PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
cp->num_cqs = req1->num_cqs;
if (!dev->max_iscsi_conn)
return 0;
/* init Tstorm RAM */
CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(func),
req1->rq_num_wqes);
CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(func),
PAGE_SIZE);
CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func), PAGE_SHIFT);
CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(func),
req1->num_tasks_per_conn);
/* init Ustorm RAM */
CNIC_WR16(dev, BAR_USTRORM_INTMEM +
USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(func),
req1->rq_buffer_size);
CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(func),
PAGE_SIZE);
CNIC_WR8(dev, BAR_USTRORM_INTMEM +
USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func), PAGE_SHIFT);
CNIC_WR16(dev, BAR_USTRORM_INTMEM +
USTORM_ISCSI_NUM_OF_TASKS_OFFSET(func),
req1->num_tasks_per_conn);
CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(func),
req1->rq_num_wqes);
CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(func),
req1->cq_num_wqes);
CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(func),
cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
/* init Xstorm RAM */
CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(func),
PAGE_SIZE);
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func), PAGE_SHIFT);
CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(func),
req1->num_tasks_per_conn);
CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(func),
hq_bds);
CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(func),
req1->num_tasks_per_conn);
CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(func),
cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
/* init Cstorm RAM */
CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(func),
PAGE_SIZE);
CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(func), PAGE_SHIFT);
CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(func),
req1->num_tasks_per_conn);
CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(func),
req1->cq_num_wqes);
CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(func),
hq_bds);
return 0;
}
static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
struct cnic_local *cp = dev->cnic_priv;
int func = cp->func;
struct iscsi_kcqe kcqe;
struct kcqe *cqes[1];
memset(&kcqe, 0, sizeof(kcqe));
if (!dev->max_iscsi_conn) {
kcqe.completion_status =
ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
goto done;
}
CNIC_WR(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_ERROR_BITMAP_OFFSET(func), req2->error_bit_map[0]);
CNIC_WR(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_ERROR_BITMAP_OFFSET(func) + 4,
req2->error_bit_map[1]);
CNIC_WR16(dev, BAR_USTRORM_INTMEM +
USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(func), req2->max_cq_sqn);
CNIC_WR(dev, BAR_USTRORM_INTMEM +
USTORM_ISCSI_ERROR_BITMAP_OFFSET(func), req2->error_bit_map[0]);
CNIC_WR(dev, BAR_USTRORM_INTMEM +
USTORM_ISCSI_ERROR_BITMAP_OFFSET(func) + 4,
req2->error_bit_map[1]);
CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(func), req2->max_cq_sqn);
kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
done:
kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
cqes[0] = (struct kcqe *) &kcqe;
cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
return 0;
}
static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
struct cnic_iscsi *iscsi = ctx->proto.iscsi;
cnic_free_dma(dev, &iscsi->hq_info);
cnic_free_dma(dev, &iscsi->r2tq_info);
cnic_free_dma(dev, &iscsi->task_array_info);
}
cnic_free_id(&cp->cid_tbl, ctx->cid);
ctx->cid = 0;
}
static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
{
u32 cid;
int ret, pages;
struct cnic_local *cp = dev->cnic_priv;
struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
struct cnic_iscsi *iscsi = ctx->proto.iscsi;
cid = cnic_alloc_new_id(&cp->cid_tbl);
if (cid == -1) {
ret = -ENOMEM;
goto error;
}
ctx->cid = cid;
pages = PAGE_ALIGN(cp->task_array_size) / PAGE_SIZE;
ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
if (ret)
goto error;
pages = PAGE_ALIGN(cp->r2tq_size) / PAGE_SIZE;
ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
if (ret)
goto error;
pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
if (ret)
goto error;
return 0;
error:
cnic_free_bnx2x_conn_resc(dev, l5_cid);
return ret;
}
static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
struct regpair *ctx_addr)
{
struct cnic_local *cp = dev->cnic_priv;
struct cnic_eth_dev *ethdev = cp->ethdev;
int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
unsigned long align_off = 0;
dma_addr_t ctx_map;
void *ctx;
if (cp->ctx_align) {
unsigned long mask = cp->ctx_align - 1;
if (cp->ctx_arr[blk].mapping & mask)
align_off = cp->ctx_align -
(cp->ctx_arr[blk].mapping & mask);
}
ctx_map = cp->ctx_arr[blk].mapping + align_off +
(off * BNX2X_CONTEXT_MEM_SIZE);
ctx = cp->ctx_arr[blk].ctx + align_off +
(off * BNX2X_CONTEXT_MEM_SIZE);
if (init)
memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
ctx_addr->lo = ctx_map & 0xffffffff;
ctx_addr->hi = (u64) ctx_map >> 32;
return ctx;
}
static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
u32 num)
{
struct cnic_local *cp = dev->cnic_priv;
struct iscsi_kwqe_conn_offload1 *req1 =
(struct iscsi_kwqe_conn_offload1 *) wqes[0];
struct iscsi_kwqe_conn_offload2 *req2 =
(struct iscsi_kwqe_conn_offload2 *) wqes[1];
struct iscsi_kwqe_conn_offload3 *req3;
struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
struct cnic_iscsi *iscsi = ctx->proto.iscsi;
u32 cid = ctx->cid;
u32 hw_cid = BNX2X_HW_CID(cid, cp->func);
struct iscsi_context *ictx;
struct regpair context_addr;
int i, j, n = 2, n_max;
ctx->ctx_flags = 0;
if (!req2->num_additional_wqes)
return -EINVAL;
n_max = req2->num_additional_wqes + 2;
ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
if (ictx == NULL)
return -ENOMEM;
req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
ictx->xstorm_ag_context.hq_prod = 1;
ictx->xstorm_st_context.iscsi.first_burst_length =
ISCSI_DEF_FIRST_BURST_LEN;
ictx->xstorm_st_context.iscsi.max_send_pdu_length =
ISCSI_DEF_MAX_RECV_SEG_LEN;
ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
req1->sq_page_table_addr_lo;
ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
req1->sq_page_table_addr_hi;
ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
iscsi->hq_info.pgtbl_map & 0xffffffff;
ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
(u64) iscsi->hq_info.pgtbl_map >> 32;
ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
iscsi->hq_info.pgtbl[0];
ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
iscsi->hq_info.pgtbl[1];
ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
iscsi->r2tq_info.pgtbl_map & 0xffffffff;
ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
(u64) iscsi->r2tq_info.pgtbl_map >> 32;
ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
iscsi->r2tq_info.pgtbl[0];
ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
iscsi->r2tq_info.pgtbl[1];
ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
iscsi->task_array_info.pgtbl_map & 0xffffffff;
ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
(u64) iscsi->task_array_info.pgtbl_map >> 32;
ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
BNX2X_ISCSI_PBL_NOT_CACHED;
ictx->xstorm_st_context.iscsi.flags.flags |=
XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
ictx->xstorm_st_context.iscsi.flags.flags |=
XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
/* TSTORM requires the base address of RQ DB & not PTE */
ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
req2->rq_page_table_addr_lo & PAGE_MASK;
ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
req2->rq_page_table_addr_hi;
ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
ictx->tstorm_st_context.tcp.flags2 |=
TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
ictx->timers_context.flags |= ISCSI_TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
ictx->ustorm_st_context.ring.rq.pbl_base.lo =
req2->rq_page_table_addr_lo;
ictx->ustorm_st_context.ring.rq.pbl_base.hi =
req2->rq_page_table_addr_hi;
ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
iscsi->r2tq_info.pgtbl_map & 0xffffffff;
ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
(u64) iscsi->r2tq_info.pgtbl_map >> 32;
ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
iscsi->r2tq_info.pgtbl[0];
ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
iscsi->r2tq_info.pgtbl[1];
ictx->ustorm_st_context.ring.cq_pbl_base.lo =
req1->cq_page_table_addr_lo;
ictx->ustorm_st_context.ring.cq_pbl_base.hi =
req1->cq_page_table_addr_hi;
ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
ictx->ustorm_st_context.task_pbe_cache_index =
BNX2X_ISCSI_PBL_NOT_CACHED;
ictx->ustorm_st_context.task_pdu_cache_index =
BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
if (j == 3) {
if (n >= n_max)
break;
req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
j = 0;
}
ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
req3->qp_first_pte[j].hi;
ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
req3->qp_first_pte[j].lo;
}
ictx->ustorm_st_context.task_pbl_base.lo =
iscsi->task_array_info.pgtbl_map & 0xffffffff;
ictx->ustorm_st_context.task_pbl_base.hi =
(u64) iscsi->task_array_info.pgtbl_map >> 32;
ictx->ustorm_st_context.tce_phy_addr.lo =
iscsi->task_array_info.pgtbl[0];
ictx->ustorm_st_context.tce_phy_addr.hi =
iscsi->task_array_info.pgtbl[1];
ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
ictx->ustorm_st_context.num_cqs = cp->num_cqs;
ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
ictx->ustorm_st_context.negotiated_rx_and_flags |=
ISCSI_DEF_MAX_BURST_LEN;
ictx->ustorm_st_context.negotiated_rx |=
ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
ictx->cstorm_st_context.hq_pbl_base.lo =
iscsi->hq_info.pgtbl_map & 0xffffffff;
ictx->cstorm_st_context.hq_pbl_base.hi =
(u64) iscsi->hq_info.pgtbl_map >> 32;
ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
ictx->cstorm_st_context.task_pbl_base.lo =
iscsi->task_array_info.pgtbl_map & 0xffffffff;
ictx->cstorm_st_context.task_pbl_base.hi =
(u64) iscsi->task_array_info.pgtbl_map >> 32;
/* CSTORM and USTORM initialization is different, CSTORM requires
* CQ DB base & not PTE addr */
ictx->cstorm_st_context.cq_db_base.lo =
req1->cq_page_table_addr_lo & PAGE_MASK;
ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
for (i = 0; i < cp->num_cqs; i++) {
ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
ISCSI_INITIAL_SN;
ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
ISCSI_INITIAL_SN;
}
ictx->xstorm_ag_context.cdu_reserved =
CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
ISCSI_CONNECTION_TYPE);
ictx->ustorm_ag_context.cdu_usage =
CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
ISCSI_CONNECTION_TYPE);
return 0;
}
static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
u32 num, int *work)
{
struct iscsi_kwqe_conn_offload1 *req1;
struct iscsi_kwqe_conn_offload2 *req2;
struct cnic_local *cp = dev->cnic_priv;
struct iscsi_kcqe kcqe;
struct kcqe *cqes[1];
u32 l5_cid;
int ret;
if (num < 2) {
*work = num;
return -EINVAL;
}
req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
if ((num - 2) < req2->num_additional_wqes) {
*work = num;
return -EINVAL;
}
*work = 2 + req2->num_additional_wqes;;
l5_cid = req1->iscsi_conn_id;
if (l5_cid >= MAX_ISCSI_TBL_SZ)
return -EINVAL;
memset(&kcqe, 0, sizeof(kcqe));
kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
kcqe.iscsi_conn_id = l5_cid;
kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
atomic_dec(&cp->iscsi_conn);
ret = 0;
goto done;
}
ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
if (ret) {
atomic_dec(&cp->iscsi_conn);
ret = 0;
goto done;
}
ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
if (ret < 0) {
cnic_free_bnx2x_conn_resc(dev, l5_cid);
atomic_dec(&cp->iscsi_conn);
goto done;
}
kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
kcqe.iscsi_conn_context_id = BNX2X_HW_CID(cp->ctx_tbl[l5_cid].cid,
cp->func);
done:
cqes[0] = (struct kcqe *) &kcqe;
cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
return ret;
}
static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct cnic_local *cp = dev->cnic_priv;
struct iscsi_kwqe_conn_update *req =
(struct iscsi_kwqe_conn_update *) kwqe;
void *data;
union l5cm_specific_data l5_data;
u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
int ret;
if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
return -EINVAL;
data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
if (!data)
return -ENOMEM;
memcpy(data, kwqe, sizeof(struct kwqe));
ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
return ret;
}
static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct cnic_local *cp = dev->cnic_priv;
struct iscsi_kwqe_conn_destroy *req =
(struct iscsi_kwqe_conn_destroy *) kwqe;
union l5cm_specific_data l5_data;
u32 l5_cid = req->reserved0;
struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
int ret = 0;
struct iscsi_kcqe kcqe;
struct kcqe *cqes[1];
if (!(ctx->ctx_flags & CTX_FL_OFFLD_START))
goto skip_cfc_delete;
while (!time_after(jiffies, ctx->timestamp + (2 * HZ)))
msleep(250);
init_waitqueue_head(&ctx->waitq);
ctx->wait_cond = 0;
memset(&l5_data, 0, sizeof(l5_data));
ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CFC_DEL,
req->context_id,
ETH_CONNECTION_TYPE |
(1 << SPE_HDR_COMMON_RAMROD_SHIFT),
&l5_data);
if (ret == 0)
wait_event(ctx->waitq, ctx->wait_cond);
skip_cfc_delete:
cnic_free_bnx2x_conn_resc(dev, l5_cid);
atomic_dec(&cp->iscsi_conn);
memset(&kcqe, 0, sizeof(kcqe));
kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
kcqe.iscsi_conn_id = l5_cid;
kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
kcqe.iscsi_conn_context_id = req->context_id;
cqes[0] = (struct kcqe *) &kcqe;
cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
return ret;
}
static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
struct l4_kwq_connect_req1 *kwqe1,
struct l4_kwq_connect_req3 *kwqe3,
struct l5cm_active_conn_buffer *conn_buf)
{
struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
struct l5cm_xstorm_conn_buffer *xstorm_buf =
&conn_buf->xstorm_conn_buffer;
struct l5cm_tstorm_conn_buffer *tstorm_buf =
&conn_buf->tstorm_conn_buffer;
struct regpair context_addr;
u32 cid = BNX2X_SW_CID(kwqe1->cid);
struct in6_addr src_ip, dst_ip;
int i;
u32 *addrp;
addrp = (u32 *) &conn_addr->local_ip_addr;
for (i = 0; i < 4; i++, addrp++)
src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
addrp = (u32 *) &conn_addr->remote_ip_addr;
for (i = 0; i < 4; i++, addrp++)
dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
xstorm_buf->context_addr.hi = context_addr.hi;
xstorm_buf->context_addr.lo = context_addr.lo;
xstorm_buf->mss = 0xffff;
xstorm_buf->rcv_buf = kwqe3->rcv_buf;
if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
xstorm_buf->pseudo_header_checksum =
swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
if (!(kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK))
tstorm_buf->params |=
L5CM_TSTORM_CONN_BUFFER_DELAYED_ACK_ENABLE;
if (kwqe3->ka_timeout) {
tstorm_buf->ka_enable = 1;
tstorm_buf->ka_timeout = kwqe3->ka_timeout;
tstorm_buf->ka_interval = kwqe3->ka_interval;
tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
}
tstorm_buf->rcv_buf = kwqe3->rcv_buf;
tstorm_buf->snd_buf = kwqe3->snd_buf;
tstorm_buf->max_rt_time = 0xffffffff;
}
static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
int func = CNIC_FUNC(cp);
u8 *mac = dev->mac_addr;
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(func), mac[0]);
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(func), mac[1]);
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(func), mac[2]);
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(func), mac[3]);
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(func), mac[4]);
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(func), mac[5]);
CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(func), mac[5]);
CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(func) + 1,
mac[4]);
CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func), mac[3]);
CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func) + 1,
mac[2]);
CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func) + 2,
mac[1]);
CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(func) + 3,
mac[0]);
}
static void cnic_bnx2x_set_tcp_timestamp(struct cnic_dev *dev, int tcp_ts)
{
struct cnic_local *cp = dev->cnic_priv;
u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
u16 tstorm_flags = 0;
if (tcp_ts) {
xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
}
CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->func), xstorm_flags);
CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->func), tstorm_flags);
}
static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
u32 num, int *work)
{
struct cnic_local *cp = dev->cnic_priv;
struct l4_kwq_connect_req1 *kwqe1 =
(struct l4_kwq_connect_req1 *) wqes[0];
struct l4_kwq_connect_req3 *kwqe3;
struct l5cm_active_conn_buffer *conn_buf;
struct l5cm_conn_addr_params *conn_addr;
union l5cm_specific_data l5_data;
u32 l5_cid = kwqe1->pg_cid;
struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
int ret;
if (num < 2) {
*work = num;
return -EINVAL;
}
if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
*work = 3;
else
*work = 2;
if (num < *work) {
*work = num;
return -EINVAL;
}
if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
netdev_err(dev->netdev, "conn_buf size too big\n");
return -ENOMEM;
}
conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
if (!conn_buf)
return -ENOMEM;
memset(conn_buf, 0, sizeof(*conn_buf));
conn_addr = &conn_buf->conn_addr_buf;
conn_addr->remote_addr_0 = csk->ha[0];
conn_addr->remote_addr_1 = csk->ha[1];
conn_addr->remote_addr_2 = csk->ha[2];
conn_addr->remote_addr_3 = csk->ha[3];
conn_addr->remote_addr_4 = csk->ha[4];
conn_addr->remote_addr_5 = csk->ha[5];
if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
struct l4_kwq_connect_req2 *kwqe2 =
(struct l4_kwq_connect_req2 *) wqes[1];
conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
}
kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
conn_addr->local_tcp_port = kwqe1->src_port;
conn_addr->remote_tcp_port = kwqe1->dst_port;
conn_addr->pmtu = kwqe3->pmtu;
cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
XSTORM_ISCSI_LOCAL_VLAN_OFFSET(cp->func), csk->vlan_id);
cnic_bnx2x_set_tcp_timestamp(dev,
kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_TIME_STAMP);
ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
if (!ret)
ctx->ctx_flags |= CTX_FL_OFFLD_START;
return ret;
}
static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
union l5cm_specific_data l5_data;
int ret;
memset(&l5_data, 0, sizeof(l5_data));
ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
return ret;
}
static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
union l5cm_specific_data l5_data;
int ret;
memset(&l5_data, 0, sizeof(l5_data));
ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
return ret;
}
static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
struct l4_kcq kcqe;
struct kcqe *cqes[1];
memset(&kcqe, 0, sizeof(kcqe));
kcqe.pg_host_opaque = req->host_opaque;
kcqe.pg_cid = req->host_opaque;
kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
cqes[0] = (struct kcqe *) &kcqe;
cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
return 0;
}
static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
{
struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
struct l4_kcq kcqe;
struct kcqe *cqes[1];
memset(&kcqe, 0, sizeof(kcqe));
kcqe.pg_host_opaque = req->pg_host_opaque;
kcqe.pg_cid = req->pg_cid;
kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
cqes[0] = (struct kcqe *) &kcqe;
cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
return 0;
}
static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
u32 num_wqes)
{
int i, work, ret;
u32 opcode;
struct kwqe *kwqe;
if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
return -EAGAIN; /* bnx2 is down */
for (i = 0; i < num_wqes; ) {
kwqe = wqes[i];
opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
work = 1;
switch (opcode) {
case ISCSI_KWQE_OPCODE_INIT1:
ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
break;
case ISCSI_KWQE_OPCODE_INIT2:
ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
break;
case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
num_wqes - i, &work);
break;
case ISCSI_KWQE_OPCODE_UPDATE_CONN:
ret = cnic_bnx2x_iscsi_update(dev, kwqe);
break;
case ISCSI_KWQE_OPCODE_DESTROY_CONN:
ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
break;
case L4_KWQE_OPCODE_VALUE_CONNECT1:
ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
&work);
break;
case L4_KWQE_OPCODE_VALUE_CLOSE:
ret = cnic_bnx2x_close(dev, kwqe);
break;
case L4_KWQE_OPCODE_VALUE_RESET:
ret = cnic_bnx2x_reset(dev, kwqe);
break;
case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
ret = cnic_bnx2x_offload_pg(dev, kwqe);
break;
case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
ret = cnic_bnx2x_update_pg(dev, kwqe);
break;
case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
ret = 0;
break;
default:
ret = 0;
netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
opcode);
break;
}
if (ret < 0)
netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
opcode);
i += work;
}
return 0;
}
static void service_kcqes(struct cnic_dev *dev, int num_cqes)
{
struct cnic_local *cp = dev->cnic_priv;
int i, j;
i = 0;
j = 1;
while (num_cqes) {
struct cnic_ulp_ops *ulp_ops;
int ulp_type;
u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
u32 kcqe_layer = kcqe_op_flag & KCQE_FLAGS_LAYER_MASK;
if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
cnic_kwq_completion(dev, 1);
while (j < num_cqes) {
u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
if ((next_op & KCQE_FLAGS_LAYER_MASK) != kcqe_layer)
break;
if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
cnic_kwq_completion(dev, 1);
j++;
}
if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
ulp_type = CNIC_ULP_RDMA;
else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
ulp_type = CNIC_ULP_ISCSI;
else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
ulp_type = CNIC_ULP_L4;
else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
goto end;
else {
netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
kcqe_op_flag);
goto end;
}
rcu_read_lock();
ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
if (likely(ulp_ops)) {
ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
cp->completed_kcq + i, j);
}
rcu_read_unlock();
end:
num_cqes -= j;
i += j;
j = 1;
}
}
static u16 cnic_bnx2_next_idx(u16 idx)
{
return idx + 1;
}
static u16 cnic_bnx2_hw_idx(u16 idx)
{
return idx;
}
static u16 cnic_bnx2x_next_idx(u16 idx)
{
idx++;
if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
idx++;
return idx;
}
static u16 cnic_bnx2x_hw_idx(u16 idx)
{
if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
idx++;
return idx;
}
static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
{
struct cnic_local *cp = dev->cnic_priv;
u16 i, ri, hw_prod, last;
struct kcqe *kcqe;
int kcqe_cnt = 0, last_cnt = 0;
i = ri = last = info->sw_prod_idx;
ri &= MAX_KCQ_IDX;
hw_prod = *info->hw_prod_idx_ptr;
hw_prod = cp->hw_idx(hw_prod);
while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
cp->completed_kcq[kcqe_cnt++] = kcqe;
i = cp->next_idx(i);
ri = i & MAX_KCQ_IDX;
if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
last_cnt = kcqe_cnt;
last = i;
}
}
info->sw_prod_idx = last;
return last_cnt;
}
static int cnic_l2_completion(struct cnic_local *cp)
{
u16 hw_cons, sw_cons;
union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
(cp->l2_ring + (2 * BCM_PAGE_SIZE));
u32 cmd;
int comp = 0;
if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
return 0;
hw_cons = *cp->rx_cons_ptr;
if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
hw_cons++;
sw_cons = cp->rx_cons;
while (sw_cons != hw_cons) {
u8 cqe_fp_flags;
cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
cmd == RAMROD_CMD_ID_ETH_HALT)
comp++;
}
sw_cons = BNX2X_NEXT_RCQE(sw_cons);
}
return comp;
}
static void cnic_chk_pkt_rings(struct cnic_local *cp)
{
u16 rx_cons = *cp->rx_cons_ptr;
u16 tx_cons = *cp->tx_cons_ptr;
int comp = 0;
if (!test_bit(CNIC_F_CNIC_UP, &cp->dev->flags))
return;
if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
comp = cnic_l2_completion(cp);
cp->tx_cons = tx_cons;
cp->rx_cons = rx_cons;
uio_event_notify(cp->cnic_uinfo);
}
if (comp)
clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
}
static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
int kcqe_cnt;
cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
service_kcqes(dev, kcqe_cnt);
/* Tell compiler that status_blk fields can change. */
barrier();
if (status_idx != *cp->kcq1.status_idx_ptr) {
status_idx = (u16) *cp->kcq1.status_idx_ptr;
cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
} else
break;
}
CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
cnic_chk_pkt_rings(cp);
return status_idx;
}
static int cnic_service_bnx2(void *data, void *status_blk)
{
struct cnic_dev *dev = data;
struct cnic_local *cp = dev->cnic_priv;
u32 status_idx = *cp->kcq1.status_idx_ptr;
if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
return status_idx;
return cnic_service_bnx2_queues(dev);
}
static void cnic_service_bnx2_msix(unsigned long data)
{
struct cnic_dev *dev = (struct cnic_dev *) data;
struct cnic_local *cp = dev->cnic_priv;
cp->last_status_idx = cnic_service_bnx2_queues(dev);
CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
}
static void cnic_doirq(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
prefetch(cp->status_blk.gen);
prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
tasklet_schedule(&cp->cnic_irq_task);
}
}
static irqreturn_t cnic_irq(int irq, void *dev_instance)
{
struct cnic_dev *dev = dev_instance;
struct cnic_local *cp = dev->cnic_priv;
if (cp->ack_int)
cp->ack_int(dev);
cnic_doirq(dev);
return IRQ_HANDLED;
}
static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
u16 index, u8 op, u8 update)
{
struct cnic_local *cp = dev->cnic_priv;
u32 hc_addr = (HC_REG_COMMAND_REG + CNIC_PORT(cp) * 32 +
COMMAND_REG_INT_ACK);
struct igu_ack_register igu_ack;
igu_ack.status_block_index = index;
igu_ack.sb_id_and_flags =
((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
(storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
(update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
(op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
}
static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
cnic_ack_bnx2x_int(dev, cp->status_blk_num, CSTORM_ID, 0,
IGU_INT_DISABLE, 0);
}
static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
{
u32 last_status = *info->status_idx_ptr;
int kcqe_cnt;
while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
service_kcqes(dev, kcqe_cnt);
/* Tell compiler that sblk fields can change. */
barrier();
if (last_status == *info->status_idx_ptr)
break;
last_status = *info->status_idx_ptr;
}
return last_status;
}
static void cnic_service_bnx2x_bh(unsigned long data)
{
struct cnic_dev *dev = (struct cnic_dev *) data;
struct cnic_local *cp = dev->cnic_priv;
u32 status_idx;
if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
return;
status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
cnic_ack_bnx2x_int(dev, cp->status_blk_num, CSTORM_ID,
status_idx, IGU_INT_ENABLE, 1);
}
static int cnic_service_bnx2x(void *data, void *status_blk)
{
struct cnic_dev *dev = data;
struct cnic_local *cp = dev->cnic_priv;
if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
cnic_doirq(dev);
cnic_chk_pkt_rings(cp);
return 0;
}
static void cnic_ulp_stop(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
int if_type;
if (cp->cnic_uinfo)
cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
struct cnic_ulp_ops *ulp_ops;
mutex_lock(&cnic_lock);
ulp_ops = cp->ulp_ops[if_type];
if (!ulp_ops) {
mutex_unlock(&cnic_lock);
continue;
}
set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
mutex_unlock(&cnic_lock);
if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
}
}
static void cnic_ulp_start(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
int if_type;
for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
struct cnic_ulp_ops *ulp_ops;
mutex_lock(&cnic_lock);
ulp_ops = cp->ulp_ops[if_type];
if (!ulp_ops || !ulp_ops->cnic_start) {
mutex_unlock(&cnic_lock);
continue;
}
set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
mutex_unlock(&cnic_lock);
if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
ulp_ops->cnic_start(cp->ulp_handle[if_type]);
clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
}
}
static int cnic_ctl(void *data, struct cnic_ctl_info *info)
{
struct cnic_dev *dev = data;
switch (info->cmd) {
case CNIC_CTL_STOP_CMD:
cnic_hold(dev);
cnic_ulp_stop(dev);
cnic_stop_hw(dev);
cnic_put(dev);
break;
case CNIC_CTL_START_CMD:
cnic_hold(dev);
if (!cnic_start_hw(dev))
cnic_ulp_start(dev);
cnic_put(dev);
break;
case CNIC_CTL_COMPLETION_CMD: {
u32 cid = BNX2X_SW_CID(info->data.comp.cid);
u32 l5_cid;
struct cnic_local *cp = dev->cnic_priv;
if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
ctx->wait_cond = 1;
wake_up(&ctx->waitq);
}
break;
}
default:
return -EINVAL;
}
return 0;
}
static void cnic_ulp_init(struct cnic_dev *dev)
{
int i;
struct cnic_local *cp = dev->cnic_priv;
for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
struct cnic_ulp_ops *ulp_ops;
mutex_lock(&cnic_lock);
ulp_ops = cnic_ulp_tbl[i];
if (!ulp_ops || !ulp_ops->cnic_init) {
mutex_unlock(&cnic_lock);
continue;
}
ulp_get(ulp_ops);
mutex_unlock(&cnic_lock);
if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
ulp_ops->cnic_init(dev);
ulp_put(ulp_ops);
}
}
static void cnic_ulp_exit(struct cnic_dev *dev)
{
int i;
struct cnic_local *cp = dev->cnic_priv;
for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
struct cnic_ulp_ops *ulp_ops;
mutex_lock(&cnic_lock);
ulp_ops = cnic_ulp_tbl[i];
if (!ulp_ops || !ulp_ops->cnic_exit) {
mutex_unlock(&cnic_lock);
continue;
}
ulp_get(ulp_ops);
mutex_unlock(&cnic_lock);
if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
ulp_ops->cnic_exit(dev);
ulp_put(ulp_ops);
}
}
static int cnic_cm_offload_pg(struct cnic_sock *csk)
{
struct cnic_dev *dev = csk->dev;
struct l4_kwq_offload_pg *l4kwqe;
struct kwqe *wqes[1];
l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
memset(l4kwqe, 0, sizeof(*l4kwqe));
wqes[0] = (struct kwqe *) l4kwqe;
l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
l4kwqe->flags =
L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
l4kwqe->l2hdr_nbytes = ETH_HLEN;
l4kwqe->da0 = csk->ha[0];
l4kwqe->da1 = csk->ha[1];
l4kwqe->da2 = csk->ha[2];
l4kwqe->da3 = csk->ha[3];
l4kwqe->da4 = csk->ha[4];
l4kwqe->da5 = csk->ha[5];
l4kwqe->sa0 = dev->mac_addr[0];
l4kwqe->sa1 = dev->mac_addr[1];
l4kwqe->sa2 = dev->mac_addr[2];
l4kwqe->sa3 = dev->mac_addr[3];
l4kwqe->sa4 = dev->mac_addr[4];
l4kwqe->sa5 = dev->mac_addr[5];
l4kwqe->etype = ETH_P_IP;
l4kwqe->ipid_start = DEF_IPID_START;
l4kwqe->host_opaque = csk->l5_cid;
if (csk->vlan_id) {
l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
l4kwqe->vlan_tag = csk->vlan_id;
l4kwqe->l2hdr_nbytes += 4;
}
return dev->submit_kwqes(dev, wqes, 1);
}
static int cnic_cm_update_pg(struct cnic_sock *csk)
{
struct cnic_dev *dev = csk->dev;
struct l4_kwq_update_pg *l4kwqe;
struct kwqe *wqes[1];
l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
memset(l4kwqe, 0, sizeof(*l4kwqe));
wqes[0] = (struct kwqe *) l4kwqe;
l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
l4kwqe->flags =
L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
l4kwqe->pg_cid = csk->pg_cid;
l4kwqe->da0 = csk->ha[0];
l4kwqe->da1 = csk->ha[1];
l4kwqe->da2 = csk->ha[2];
l4kwqe->da3 = csk->ha[3];
l4kwqe->da4 = csk->ha[4];
l4kwqe->da5 = csk->ha[5];
l4kwqe->pg_host_opaque = csk->l5_cid;
l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
return dev->submit_kwqes(dev, wqes, 1);
}
static int cnic_cm_upload_pg(struct cnic_sock *csk)
{
struct cnic_dev *dev = csk->dev;
struct l4_kwq_upload *l4kwqe;
struct kwqe *wqes[1];
l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
memset(l4kwqe, 0, sizeof(*l4kwqe));
wqes[0] = (struct kwqe *) l4kwqe;
l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
l4kwqe->flags =
L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
l4kwqe->cid = csk->pg_cid;
return dev->submit_kwqes(dev, wqes, 1);
}
static int cnic_cm_conn_req(struct cnic_sock *csk)
{
struct cnic_dev *dev = csk->dev;
struct l4_kwq_connect_req1 *l4kwqe1;