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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-04-07 06:03:04 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-10 19:54:39 -0700
commitadfc5217e9db68d3f0cec8dd847c1a6d3ab549ee (patch)
tree4082ae79d2d4d40b39c9b5144b8171464b5f7eb2 /drivers/net/cnic.c
parent644570b830266ff33ff5f3542b9c838f93a55ea6 (diff)
downloadlinux-adfc5217e9db68d3f0cec8dd847c1a6d3ab549ee.tar.bz2
broadcom: Move the Broadcom drivers
Moves the drivers for Broadcom devices into drivers/net/ethernet/broadcom/ and the necessary Kconfig and Makefile changes. CC: Eilon Greenstein <eilong@broadcom.com> CC: Michael Chan <mchan@broadcom.com> CC: Matt Carlson <mcarlson@broadcom.com> CC: Gary Zambrano <zambrano@broadcom.com> CC: "Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/cnic.c')
-rw-r--r--drivers/net/cnic.c5487
1 files changed, 0 insertions, 5487 deletions
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
deleted file mode 100644
index 94a2e541006d..000000000000
--- a/drivers/net/cnic.c
+++ /dev/null
@@ -1,5487 +0,0 @@
-/* cnic.c: Broadcom CNIC core network driver.
- *
- * Copyright (c) 2006-2011 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>
-#include <linux/prefetch.h>
-#include <linux/random.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);
-
-/* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
-static LIST_HEAD(cnic_dev_list);
-static LIST_HEAD(cnic_udev_list);
-static DEFINE_RWLOCK(cnic_dev_lock);
-static DEFINE_MUTEX(cnic_lock);
-
-static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
-
-/* helper function, assuming cnic_lock is held */
-static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
-{
- return rcu_dereference_protected(cnic_ulp_tbl[type],
- lockdep_is_held(&cnic_lock));
-}
-
-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 struct workqueue_struct *cnic_wq;
-
-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_uio_dev *udev = uinfo->priv;
- struct cnic_dev *dev;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- if (udev->uio_dev != -1)
- return -EBUSY;
-
- rtnl_lock();
- dev = udev->dev;
-
- if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
- rtnl_unlock();
- return -ENODEV;
- }
-
- udev->uio_dev = iminor(inode);
-
- cnic_shutdown_rings(dev);
- cnic_init_rings(dev);
- rtnl_unlock();
-
- return 0;
-}
-
-static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
-{
- struct cnic_uio_dev *udev = uinfo->priv;
-
- udev->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_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- struct drv_ctl_info info;
-
- info.cmd = cmd;
- info.data.credit.credit_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;
- struct cnic_uio_dev *udev = cp->udev;
- int rc = 0, retry = 0;
-
- if (!udev || udev->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;
- }
-
- while (retry < 3) {
- rc = 0;
- rcu_read_lock();
- ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
- if (ulp_ops)
- rc = ulp_ops->iscsi_nl_send_msg(
- cp->ulp_handle[CNIC_ULP_ISCSI],
- msg_type, buf, len);
- rcu_read_unlock();
- if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
- break;
-
- msleep(100);
- retry++;
- }
- return rc;
-}
-
-static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
-
-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) &&
- test_bit(SK_F_CONNECT_START, &csk->flags)) {
-
- 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);
- } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
- !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
-
- cnic_cm_upcall(cp, csk,
- L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
- clear_bit(SK_F_CONNECT_START, &csk->flags);
- }
- }
- 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;
-}
-
-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_prot(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();
- 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);
- }
- 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_prot(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);
-
- 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_prot(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_prot(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);
-
- if (ulp_type == CNIC_ULP_ISCSI)
- cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
-
- 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,
- u32 next)
-{
- id_tbl->start = start_id;
- id_tbl->max = size;
- id_tbl->next = next;
- 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;
- __le32 *page_table = (__le32 *) dma->pgtbl;
-
- for (i = 0; i < dma->num_pages; i++) {
- /* Each entry needs to be in big endian format. */
- *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
- page_table++;
- *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
- page_table++;
- }
-}
-
-static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
-{
- int i;
- __le32 *page_table = (__le32 *) dma->pgtbl;
-
- for (i = 0; i < dma->num_pages; i++) {
- /* Each entry needs to be in little endian format. */
- *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
- page_table++;
- *page_table = cpu_to_le32((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_uio(struct cnic_uio_dev *udev)
-{
- uio_unregister_device(&udev->cnic_uinfo);
-
- if (udev->l2_buf) {
- dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
- udev->l2_buf, udev->l2_buf_map);
- udev->l2_buf = NULL;
- }
-
- if (udev->l2_ring) {
- dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
- udev->l2_ring, udev->l2_ring_map);
- udev->l2_ring = NULL;
- }
-
- pci_dev_put(udev->pdev);
- kfree(udev);
-}
-
-static void cnic_free_uio(struct cnic_uio_dev *udev)
-{
- if (!udev)
- return;
-
- write_lock(&cnic_dev_lock);
- list_del_init(&udev->list);
- write_unlock(&cnic_dev_lock);
- __cnic_free_uio(udev);
-}
-
-static void cnic_free_resc(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_uio_dev *udev = cp->udev;
-
- if (udev) {
- udev->dev = NULL;
- cp->udev = 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->kwq_info);
- cnic_free_dma(dev, &cp->kwq_16_data_info);
- cnic_free_dma(dev, &cp->kcq2.dma);
- 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->fcoe_cid_tbl);
- 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 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_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info,
- bool use_pg_tbl)
-{
- int err, i, use_page_tbl = 0;
- struct kcqe **kcq;
-
- if (use_pg_tbl)
- use_page_tbl = 1;
-
- err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, use_page_tbl);
- if (err)
- return err;
-
- kcq = (struct kcqe **) info->dma.pg_arr;
- info->kcq = kcq;
-
- info->next_idx = cnic_bnx2_next_idx;
- info->hw_idx = cnic_bnx2_hw_idx;
- if (use_pg_tbl)
- return 0;
-
- info->next_idx = cnic_bnx2x_next_idx;
- info->hw_idx = cnic_bnx2x_hw_idx;
-
- 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_uio_rings(struct cnic_dev *dev, int pages)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_uio_dev *udev;
-
- read_lock(&cnic_dev_lock);
- list_for_each_entry(udev, &cnic_udev_list, list) {
- if (udev->pdev == dev->pcidev) {
- udev->dev = dev;
- cp->udev = udev;
- read_unlock(&cnic_dev_lock);
- return 0;
- }
- }
- read_unlock(&cnic_dev_lock);
-
- udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
- if (!udev)
- return -ENOMEM;
-
- udev->uio_dev = -1;
-
- udev->dev = dev;
- udev->pdev = dev->pcidev;
- udev->l2_ring_size = pages * BCM_PAGE_SIZE;
- udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
- &udev->l2_ring_map,
- GFP_KERNEL | __GFP_COMP);
- if (!udev->l2_ring)
- goto err_udev;
-
- udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
- udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
- udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
- &udev->l2_buf_map,
- GFP_KERNEL | __GFP_COMP);
- if (!udev->l2_buf)
- goto err_dma;
-
- write_lock(&cnic_dev_lock);
- list_add(&udev->list, &cnic_udev_list);
- write_unlock(&cnic_dev_lock);
-
- pci_dev_get(udev->pdev);
-
- cp->udev = udev;
-
- return 0;
- err_dma:
- dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
- udev->l2_ring, udev->l2_ring_map);
- err_udev:
- kfree(udev);
- return -ENOMEM;
-}
-
-static int cnic_init_uio(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_uio_dev *udev = cp->udev;
- struct uio_info *uinfo;
- int ret = 0;
-
- if (!udev)
- return -ENOMEM;
-
- uinfo = &udev->cnic_uinfo;
-
- 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(*cp->bnx2x_def_status_blk);
-
- uinfo->name = "bnx2x_cnic";
- }
-
- uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
-
- uinfo->mem[2].addr = (unsigned long) udev->l2_ring;
- uinfo->mem[2].size = udev->l2_ring_size;
- uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
-
- uinfo->mem[3].addr = (unsigned long) udev->l2_buf;
- uinfo->mem[3].size = udev->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;
-
- if (udev->uio_dev == -1) {
- if (!uinfo->priv) {
- uinfo->priv = udev;
-
- ret = uio_register_device(&udev->pdev->dev, uinfo);
- }
- } else {
- cnic_init_rings(dev);
- }
-
- return ret;
-}
-
-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, true);
- if (ret)
- goto error;
-
- ret = cnic_alloc_context(dev);
- if (ret)
- goto error;
-
- ret = cnic_alloc_uio_rings(dev, 2);
- if (ret)
- goto error;
-
- ret = cnic_init_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 = kcalloc(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_57710(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->iro_arr = ethdev->iro_arr;
-
- cp->max_cid_space = MAX_ISCSI_TBL_SZ;
- cp->iscsi_start_cid = start_cid;
- cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ;
-
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
- cp->max_cid_space += BNX2X_FCOE_NUM_CONNECTIONS;
- cp->fcoe_init_cid = ethdev->fcoe_init_cid;
- if (!cp->fcoe_init_cid)
- cp->fcoe_init_cid = 0x10;
- }
-
- 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;
- }
-
- for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++)
- cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE;
-
- 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, false);
- if (ret)
- goto error;
-
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
- ret = cnic_alloc_kcq(dev, &cp->kcq2, true);
- 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;
-
- cp->l2_rx_ring_size = 15;
-
- ret = cnic_alloc_uio_rings(dev, 4);
- if (ret)
- goto error;
-
- ret = cnic_init_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];
- u16 type_16;
- int ret;
-
- kwqe.hdr.conn_and_cmd_data =
- cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
- BNX2X_HW_CID(cp, cid)));
-
- type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
- type_16 |= (cp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
- SPE_HDR_FUNCTION_ID;
-
- kwqe.hdr.type = cpu_to_le16(type_16);
- kwqe.hdr.reserved1 = 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 hq_bds, pages;
- u32 pfid = cp->pfid;
-
- 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(pfid),
- req1->rq_num_wqes);
- CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
- PAGE_SIZE);
- CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
- CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
- req1->num_tasks_per_conn);
-
- /* init Ustorm RAM */
- CNIC_WR16(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
- req1->rq_buffer_size);
- CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
- PAGE_SIZE);
- CNIC_WR8(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
- CNIC_WR16(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
- req1->num_tasks_per_conn);
- CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
- req1->rq_num_wqes);
- CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
- req1->cq_num_wqes);
- CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
- cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
-
- /* init Xstorm RAM */
- CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
- PAGE_SIZE);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
- CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
- req1->num_tasks_per_conn);
- CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
- hq_bds);
- CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
- req1->num_tasks_per_conn);
- CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
- cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
-
- /* init Cstorm RAM */
- CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
- PAGE_SIZE);
- CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
- CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
- req1->num_tasks_per_conn);
- CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
- req1->cq_num_wqes);
- CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
- 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;
- u32 pfid = cp->pfid;
- 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(pfid), req2->error_bit_map[0]);
- CNIC_WR(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
- req2->error_bit_map[1]);
-
- CNIC_WR16(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
- CNIC_WR(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
- CNIC_WR(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
- req2->error_bit_map[1]);
-
- CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), 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);
- } else {
- cnic_free_id(&cp->fcoe_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;
-
- if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
- cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
- if (cid == -1) {
- ret = -ENOMEM;
- goto error;
- }
- ctx->cid = cid;
- return 0;
- }
-
- 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(cp, cid);
- struct iscsi_context *ictx;
- struct regpair context_addr;
- int i, j, n = 2, n_max;
- u8 port = CNIC_PORT(cp);
-
- 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->xstorm_st_context.common.ethernet.reserved_vlan_type =
- ETH_P_8021Q;
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) &&
- cp->port_mode == CHIP_2_PORT_MODE) {
-
- port = 0;
- }
- ictx->xstorm_st_context.common.flags =
- 1 << XSTORM_COMMON_CONTEXT_SECTION_PHYSQ_INITIALIZED_SHIFT;
- ictx->xstorm_st_context.common.flags =
- port << XSTORM_COMMON_CONTEXT_SECTION_PBF_PORT_SHIFT;
-
- 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->tstorm_st_context.tcp.ooo_support_mode =
- TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
-
- ictx->timers_context.flags |= 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 cnic_context *ctx;
- struct iscsi_kcqe kcqe;
- struct kcqe *cqes[1];
- u32 l5_cid;
- int ret = 0;
-
- 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;
-
- ctx = &cp->ctx_tbl[l5_cid];
- if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
- kcqe.completion_status =
- ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
- goto done;
- }
-
- if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
- atomic_dec(&cp->iscsi_conn);
- 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, cp->ctx_tbl[l5_cid].cid);
-
-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_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
- union l5cm_specific_data l5_data;
- int ret;
- u32 hw_cid;
-
- init_waitqueue_head(&ctx->waitq);
- ctx->wait_cond = 0;
- memset(&l5_data, 0, sizeof(l5_data));
- hw_cid = BNX2X_HW_CID(cp, ctx->cid);
-
- ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
- hw_cid, NONE_CONNECTION_TYPE, &l5_data);
-
- if (ret == 0) {
- wait_event(ctx->waitq, ctx->wait_cond);
- if (unlikely(test_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags)))
- return -EBUSY;
- }
-
- 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;
- 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 (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
- goto skip_cfc_delete;
-
- if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
- unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
-
- if (delta > (2 * HZ))
- delta = 0;
-
- set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
- queue_delayed_work(cnic_wq, &cp->delete_task, delta);
- goto destroy_reply;
- }
-
- ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
-
-skip_cfc_delete:
- cnic_free_bnx2x_conn_resc(dev, l5_cid);
-
- if (!ret) {
- atomic_dec(&cp->iscsi_conn);
- clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
- }
-
-destroy_reply:
- 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->max_rt_time = 0xffffffff;
-}
-
-static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u32 pfid = cp->pfid;
- u8 *mac = dev->mac_addr;
-
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
-
- CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
- CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
- mac[4]);
- CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
- CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
- mac[2]);
- CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[1]);
- CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
- 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->pfid), xstorm_flags);
-
- CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), 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->pfid), 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)
- set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
-
- 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_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
-{
- struct fcoe_kwqe_stat *req;
- struct fcoe_stat_ramrod_params *fcoe_stat;
- union l5cm_specific_data l5_data;
- struct cnic_local *cp = dev->cnic_priv;
- int ret;
- u32 cid;
-
- req = (struct fcoe_kwqe_stat *) kwqe;
- cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
-
- fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
- if (!fcoe_stat)
- return -ENOMEM;
-
- memset(fcoe_stat, 0, sizeof(*fcoe_stat));
- memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
-
- ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT_FUNC, cid,
- FCOE_CONNECTION_TYPE, &l5_data);
- return ret;
-}
-
-static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
- u32 num, int *work)
-{
- int ret;
- struct cnic_local *cp = dev->cnic_priv;
- u32 cid;
- struct fcoe_init_ramrod_params *fcoe_init;
- struct fcoe_kwqe_init1 *req1;
- struct fcoe_kwqe_init2 *req2;
- struct fcoe_kwqe_init3 *req3;
- union l5cm_specific_data l5_data;
-
- if (num < 3) {
- *work = num;
- return -EINVAL;
- }
- req1 = (struct fcoe_kwqe_init1 *) wqes[0];
- req2 = (struct fcoe_kwqe_init2 *) wqes[1];
- req3 = (struct fcoe_kwqe_init3 *) wqes[2];
- if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
- *work = 1;
- return -EINVAL;
- }
- if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
- *work = 2;
- return -EINVAL;
- }
-
- if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
- netdev_err(dev->netdev, "fcoe_init size too big\n");
- return -ENOMEM;
- }
- fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
- if (!fcoe_init)
- return -ENOMEM;
-
- memset(fcoe_init, 0, sizeof(*fcoe_init));
- memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
- memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
- memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
- fcoe_init->eq_pbl_base.lo = cp->kcq2.dma.pgtbl_map & 0xffffffff;
- fcoe_init->eq_pbl_base.hi = (u64) cp->kcq2.dma.pgtbl_map >> 32;
- fcoe_init->eq_pbl_size = cp->kcq2.dma.num_pages;
-
- fcoe_init->sb_num = cp->status_blk_num;
- fcoe_init->eq_prod = MAX_KCQ_IDX;
- fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
- cp->kcq2.sw_prod_idx = 0;
-
- cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
- ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT_FUNC, cid,
- FCOE_CONNECTION_TYPE, &l5_data);
- *work = 3;
- return ret;
-}
-
-static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
- u32 num, int *work)
-{
- int ret = 0;
- u32 cid = -1, l5_cid;
- struct cnic_local *cp = dev->cnic_priv;
- struct fcoe_kwqe_conn_offload1 *req1;
- struct fcoe_kwqe_conn_offload2 *req2;
- struct fcoe_kwqe_conn_offload3 *req3;
- struct fcoe_kwqe_conn_offload4 *req4;
- struct fcoe_conn_offload_ramrod_params *fcoe_offload;
- struct cnic_context *ctx;
- struct fcoe_context *fctx;
- struct regpair ctx_addr;
- union l5cm_specific_data l5_data;
- struct fcoe_kcqe kcqe;
- struct kcqe *cqes[1];
-
- if (num < 4) {
- *work = num;
- return -EINVAL;
- }
- req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
- req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
- req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
- req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
-
- *work = 4;
-
- l5_cid = req1->fcoe_conn_id;
- if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
- goto err_reply;
-
- l5_cid += BNX2X_FCOE_L5_CID_BASE;
-
- ctx = &cp->ctx_tbl[l5_cid];
- if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
- goto err_reply;
-
- ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
- if (ret) {
- ret = 0;
- goto err_reply;
- }
- cid = ctx->cid;
-
- fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
- if (fctx) {
- u32 hw_cid = BNX2X_HW_CID(cp, cid);
- u32 val;
-
- val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
- FCOE_CONNECTION_TYPE);
- fctx->xstorm_ag_context.cdu_reserved = val;
- val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
- FCOE_CONNECTION_TYPE);
- fctx->ustorm_ag_context.cdu_usage = val;
- }
- if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
- netdev_err(dev->netdev, "fcoe_offload size too big\n");
- goto err_reply;
- }
- fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
- if (!fcoe_offload)
- goto err_reply;
-
- memset(fcoe_offload, 0, sizeof(*fcoe_offload));
- memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
- memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
- memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
- memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
-
- cid = BNX2X_HW_CID(cp, cid);
- ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
- FCOE_CONNECTION_TYPE, &l5_data);
- if (!ret)
- set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
-
- return ret;
-
-err_reply:
- if (cid != -1)
- cnic_free_bnx2x_conn_resc(dev, l5_cid);
-
- memset(&kcqe, 0, sizeof(kcqe));
- kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
- kcqe.fcoe_conn_id = req1->fcoe_conn_id;
- kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
-
- cqes[0] = (struct kcqe *) &kcqe;
- cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
- return ret;
-}
-
-static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
-{
- struct fcoe_kwqe_conn_enable_disable *req;
- struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
- union l5cm_specific_data l5_data;
- int ret;
- u32 cid, l5_cid;
- struct cnic_local *cp = dev->cnic_priv;
-
- req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
- cid = req->context_id;
- l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
-
- if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
- netdev_err(dev->netdev, "fcoe_enable size too big\n");
- return -ENOMEM;
- }
- fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
- if (!fcoe_enable)
- return -ENOMEM;
-
- memset(fcoe_enable, 0, sizeof(*fcoe_enable));
- memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
- ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
- FCOE_CONNECTION_TYPE, &l5_data);
- return ret;
-}
-
-static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
-{
- struct fcoe_kwqe_conn_enable_disable *req;
- struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
- union l5cm_specific_data l5_data;
- int ret;
- u32 cid, l5_cid;
- struct cnic_local *cp = dev->cnic_priv;
-
- req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
- cid = req->context_id;
- l5_cid = req->conn_id;
- if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
- return -EINVAL;
-
- l5_cid += BNX2X_FCOE_L5_CID_BASE;
-
- if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
- netdev_err(dev->netdev, "fcoe_disable size too big\n");
- return -ENOMEM;
- }
- fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
- if (!fcoe_disable)
- return -ENOMEM;
-
- memset(fcoe_disable, 0, sizeof(*fcoe_disable));
- memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
- ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
- FCOE_CONNECTION_TYPE, &l5_data);
- return ret;
-}
-
-static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
-{
- struct fcoe_kwqe_conn_destroy *req;
- union l5cm_specific_data l5_data;
- int ret;
- u32 cid, l5_cid;
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_context *ctx;
- struct fcoe_kcqe kcqe;
- struct kcqe *cqes[1];
-
- req = (struct fcoe_kwqe_conn_destroy *) kwqe;
- cid = req->context_id;
- l5_cid = req->conn_id;
- if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
- return -EINVAL;
-
- l5_cid += BNX2X_FCOE_L5_CID_BASE;
-
- ctx = &cp->ctx_tbl[l5_cid];
-
- init_waitqueue_head(&ctx->waitq);
- ctx->wait_cond = 0;
-
- memset(&l5_data, 0, sizeof(l5_data));
- ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
- FCOE_CONNECTION_TYPE, &l5_data);
- if (ret == 0) {
- wait_event(ctx->waitq, ctx->wait_cond);
- set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
- queue_delayed_work(cnic_wq, &cp->delete_task,
- msecs_to_jiffies(2000));
- }
-
- memset(&kcqe, 0, sizeof(kcqe));
- kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
- kcqe.fcoe_conn_id = req->conn_id;
- kcqe.fcoe_conn_context_id = cid;
-
- cqes[0] = (struct kcqe *) &kcqe;
- cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
- return ret;
-}
-
-static void cnic_bnx2x_delete_wait(struct cnic_dev *dev, u32 start_cid)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u32 i;
-
- for (i = start_cid; i < cp->max_cid_space; i++) {
- struct cnic_context *ctx = &cp->ctx_tbl[i];
- int j;
-
- while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
- msleep(10);
-
- for (j = 0; j < 5; j++) {
- if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
- break;
- msleep(20);
- }
-
- if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
- netdev_warn(dev->netdev, "CID %x not deleted\n",
- ctx->cid);
- }
-}
-
-static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
-{
- struct fcoe_kwqe_destroy *req;
- union l5cm_specific_data l5_data;
- struct cnic_local *cp = dev->cnic_priv;
- int ret;
- u32 cid;
-
- cnic_bnx2x_delete_wait(dev, MAX_ISCSI_TBL_SZ);
-
- req = (struct fcoe_kwqe_destroy *) kwqe;
- cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
-
- memset(&l5_data, 0, sizeof(l5_data));
- ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY_FUNC, cid,
- FCOE_CONNECTION_TYPE, &l5_data);
- return ret;
-}
-
-static int cnic_submit_bnx2x_iscsi_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 int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
- struct kwqe *wqes[], u32 num_wqes)
-{
- struct cnic_local *cp = dev->cnic_priv;
- int i, work, ret;
- u32 opcode;
- struct kwqe *kwqe;
-
- if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
- return -EAGAIN; /* bnx2 is down */
-
- if (!BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
- return -EINVAL;
-
- for (i = 0; i < num_wqes; ) {
- kwqe = wqes[i];
- opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
- work = 1;
-
- switch (opcode) {
- case FCOE_KWQE_OPCODE_INIT1:
- ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
- num_wqes - i, &work);
- break;
- case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
- ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
- num_wqes - i, &work);
- break;
- case FCOE_KWQE_OPCODE_ENABLE_CONN:
- ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
- break;
- case FCOE_KWQE_OPCODE_DISABLE_CONN:
- ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
- break;
- case FCOE_KWQE_OPCODE_DESTROY_CONN:
- ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
- break;
- case FCOE_KWQE_OPCODE_DESTROY:
- ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
- break;
- case FCOE_KWQE_OPCODE_STAT:
- ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
- 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 int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
- u32 num_wqes)
-{
- int ret = -EINVAL;
- u32 layer_code;
-
- if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
- return -EAGAIN; /* bnx2x is down */
-
- if (!num_wqes)
- return 0;
-
- layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
- switch (layer_code) {
- case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
- case KWQE_FLAGS_LAYER_MASK_L4:
- case KWQE_FLAGS_LAYER_MASK_L2:
- ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
- break;
-
- case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
- ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
- break;
- }
- return ret;
-}
-
-static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
-{
- if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
- return KCQE_FLAGS_LAYER_MASK_L4;
-
- return opflag & KCQE_FLAGS_LAYER_MASK;
-}
-
-static void service_kcqes(struct cnic_dev *dev, int num_cqes)
-{
- struct cnic_local *cp = dev->cnic_priv;
- int i, j, comp = 0;
-
- 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 = cnic_get_kcqe_layer_mask(kcqe_op_flag);
-
- if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
- comp++;
-
- while (j < num_cqes) {
- u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
-
- if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
- break;
-
- if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
- comp++;
- 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_L5_FCOE)
- ulp_type = CNIC_ULP_FCOE;
- 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;
- }
- if (unlikely(comp))
- cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
-}
-
-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 = info->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 = info->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;
- struct cnic_uio_dev *udev = cp->udev;
- union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
- (udev->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, tx_cons;
- int comp = 0;
-
- if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
- return;
-
- rx_cons = *cp->rx_cons_ptr;
- tx_cons = *cp->tx_cons_ptr;
- 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;
-
- if (cp->udev)
- uio_event_notify(&cp->udev->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;
-
- /* status block index must be read before reading other fields */
- rmb();
- 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();
- status_idx = (u16) *cp->kcq1.status_idx_ptr;
- /* status block index must be read first */
- rmb();
- cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
- }
-
- 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;
-
- if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
- struct status_block *sblk = status_blk;
-
- return sblk->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;
-
- if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
- u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
-
- 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_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
- u16 index, u8 op, u8 update)
-{
- struct igu_regular cmd_data;
- u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
-
- cmd_data.sb_id_and_flags =
- (index << IGU_REGULAR_SB_INDEX_SHIFT) |
- (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
- (update << IGU_REGULAR_BUPDATE_SHIFT) |
- (op << IGU_REGULAR_ENABLE_INT_SHIFT);
-
-
- CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
-}
-
-static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
-
- cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
- IGU_INT_DISABLE, 0);
-}
-
-static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
-
- cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 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;
-
- /* status block index must be read before reading the KCQ */
- rmb();
- while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
-
- service_kcqes(dev, kcqe_cnt);
-
- /* Tell compiler that sblk fields can change. */
- barrier();
-
- last_status = *info->status_idx_ptr;
- /* status block index must be read before reading the KCQ */
- rmb();
- }
- 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, new_status_idx;
-
- if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
- return;
-
- while (1) {
- status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
-
- CNIC_WR16(dev, cp->kcq1.io_addr,
- cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
-
- if (!BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
- cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,
- status_idx, IGU_INT_ENABLE, 1);
- break;
- }
-
- new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
-
- if (new_status_idx != status_idx)
- continue;
-
- CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
- MAX_KCQ_IDX);
-
- cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
- status_idx, IGU_INT_ENABLE, 1);
-
- break;
- }
-}
-
-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_one(struct cnic_local *cp, int if_type)
-{
- struct cnic_ulp_ops *ulp_ops;
-
- if (if_type == CNIC_ULP_ISCSI)
- cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
-
- mutex_lock(&cnic_lock);
- ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
- lockdep_is_held(&cnic_lock));
- if (!ulp_ops) {
- mutex_unlock(&cnic_lock);
- return;
- }
- 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_stop(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++)
- cnic_ulp_stop_one(cp, 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 = rcu_dereference_protected(cp->ulp_ops[if_type],
- lockdep_is_held(&cnic_lock));
- 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_STOP_ISCSI_CMD: {
- struct cnic_local *cp = dev->cnic_priv;
- set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags);
- queue_delayed_work(cnic_wq, &cp->delete_task, 0);
- break;
- }
- case CNIC_CTL_COMPLETION_CMD: {
- struct cnic_ctl_completion *comp = &info->data.comp;
- u32 cid = BNX2X_SW_CID(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];
-
- if (unlikely(comp->error)) {
- set_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags);
- netdev_err(dev->netdev,
- "CID %x CFC delete comp error %x\n",
- cid, comp->error);
- }
-
- 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_prot(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_prot(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;
- struct l4_kwq_connect_req2 *l4kwqe2;
- struct l4_kwq_connect_req3 *l4kwqe3;
- struct kwqe *wqes[3];
- u8 tcp_flags = 0;
- int num_wqes = 2;
-
- l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
- l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
- l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
- memset(l4kwqe1, 0, sizeof(*l4kwqe1));
- memset(l4kwqe2, 0, sizeof(*l4kwqe2));
- memset(l4kwqe3, 0, sizeof(*l4kwqe3));
-
- l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
- l4kwqe3->flags =
- L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
- l4kwqe3->ka_timeout = csk->ka_timeout;
- l4kwqe3->ka_interval = csk->ka_interval;
- l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
- l4kwqe3->tos = csk->tos;
- l4kwqe3->ttl = csk->ttl;
- l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
- l4kwqe3->pmtu = csk->mtu;
- l4kwqe3->rcv_buf = csk->rcv_buf;
- l4kwqe3->snd_buf = csk->snd_buf;
- l4kwqe3->seed = csk->seed;
-
- wqes[0] = (struct kwqe *) l4kwqe1;
- if (test_bit(SK_F_IPV6, &csk->flags)) {
- wqes[1] = (struct kwqe *) l4kwqe2;
- wqes[2] = (struct kwqe *) l4kwqe3;
- num_wqes = 3;
-
- l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
- l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
- l4kwqe2->flags =
- L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
- L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
- l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
- l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
- l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
- l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
- l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
- l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
- l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
- sizeof(struct tcphdr);
- } else {
- wqes[1] = (struct kwqe *) l4kwqe3;
- l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
- sizeof(struct tcphdr);
- }
-
- l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
- l4kwqe1->flags =
- (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
- L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
- l4kwqe1->cid = csk->cid;
- l4kwqe1->pg_cid = csk->pg_cid;
- l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
- l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
- l4kwqe1->src_port = be16_to_cpu(csk->src_port);
- l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
- if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
- tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
- if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
- tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
- if (csk->tcp_flags & SK_TCP_NAGLE)
- tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
- if (csk->tcp_flags & SK_TCP_TIMESTAMP)
- tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
- if (csk->tcp_flags & SK_TCP_SACK)
- tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
- if (csk->tcp_flags & SK_TCP_SEG_SCALING)
- tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
-
- l4kwqe1->tcp_flags = tcp_flags;
-
- return dev->submit_kwqes(dev, wqes, num_wqes);
-}
-
-static int cnic_cm_close_req(struct cnic_sock *csk)
-{
- struct cnic_dev *dev = csk->dev;
- struct l4_kwq_close_req *l4kwqe;
- struct kwqe *wqes[1];
-
- l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
- memset(l4kwqe, 0, sizeof(*l4kwqe));
- wqes[0] = (struct kwqe *) l4kwqe;
-
- l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
- l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
- l4kwqe->cid = csk->cid;
-
- return dev->submit_kwqes(dev, wqes, 1);
-}
-
-static int cnic_cm_abort_req(struct cnic_sock *csk)
-{
- struct cnic_dev *dev = csk->dev;
- struct l4_kwq_reset_req *l4kwqe;
- struct kwqe *wqes[1];
-
- l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
- memset(l4kwqe, 0, sizeof(*l4kwqe));
- wqes[0] = (struct kwqe *) l4kwqe;
-
- l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
- l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
- l4kwqe->cid = csk->cid;
-
- return dev->submit_kwqes(dev, wqes, 1);
-}
-
-static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
- u32 l5_cid, struct cnic_sock **csk, void *context)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_sock *csk1;
-
- if (l5_cid >= MAX_CM_SK_TBL_SZ)
- return -EINVAL;
-
- if (cp->ctx_tbl) {
- struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
-
- if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
- return -EAGAIN;
- }
-
- csk1 = &cp->csk_tbl[l5_cid];
- if (atomic_read(&csk1->ref_count))
- return -EAGAIN;
-
- if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
- return -EBUSY;
-
- csk1->dev = dev;
- csk1->cid = cid;
- csk1->l5_cid = l5_cid;
- csk1->ulp_type = ulp_type;
- csk1->context = context;
-
- csk1->ka_timeout = DEF_KA_TIMEOUT;
- csk1->ka_interval = DEF_KA_INTERVAL;
- csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
- csk1->tos = DEF_TOS;
- csk1->ttl = DEF_TTL;
- csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
- csk1->rcv_buf = DEF_RCV_BUF;
- csk1->snd_buf = DEF_SND_BUF;
- csk1->seed = DEF_SEED;
-
- *csk = csk1;
- return 0;
-}
-
-static void cnic_cm_cleanup(struct cnic_sock *csk)
-{
- if (csk->src_port) {
- struct cnic_dev *dev = csk->dev;
- struct cnic_local *cp = dev->cnic_priv;
-
- cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
- csk->src_port = 0;
- }
-}
-
-static void cnic_close_conn(struct cnic_sock *csk)
-{
- if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
- cnic_cm_upload_pg(csk);
- clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
- }
- cnic_cm_cleanup(csk);
-}
-
-static int cnic_cm_destroy(struct cnic_sock *csk)
-{
- if (!cnic_in_use(csk))
- return -EINVAL;
-
- csk_hold(csk);
- clear_bit(SK_F_INUSE, &csk->flags);
- smp_mb__after_clear_bit();
- while (atomic_read(&csk->ref_count) != 1)
- msleep(1);
- cnic_cm_cleanup(csk);
-
- csk->flags = 0;
- csk_put(csk);
- return 0;
-}
-
-static inline u16 cnic_get_vlan(struct net_device *dev,
- struct net_device **vlan_dev)
-{
- if (dev->priv_flags & IFF_802_1Q_VLAN) {
- *vlan_dev = vlan_dev_real_dev(dev);
- return vlan_dev_vlan_id(dev);
- }
- *vlan_dev = dev;
- return 0;
-}
-
-static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
- struct dst_entry **dst)
-{
-#if defined(CONFIG_INET)
- struct rtable *rt;
-
- rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
- if (!IS_ERR(rt)) {
- *dst = &rt->dst;
- return 0;
- }
- return PTR_ERR(rt);
-#else
- return -ENETUNREACH;
-#endif
-}
-
-static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
- struct dst_entry **dst)
-{
-#if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
- struct flowi6 fl6;
-
- memset(&fl6, 0, sizeof(fl6));
- ipv6_addr_copy(&fl6.daddr, &dst_addr->sin6_addr);
- if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
- fl6.flowi6_oif = dst_addr->sin6_scope_id;
-
- *dst = ip6_route_output(&init_net, NULL, &fl6);
- if (*dst)
- return 0;
-#endif
-
- return -ENETUNREACH;
-}
-
-static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
- int ulp_type)
-{
- struct cnic_dev *dev = NULL;
- struct dst_entry *dst;
- struct net_device *netdev = NULL;
- int err = -ENETUNREACH;
-
- if (dst_addr->sin_family == AF_INET)
- err = cnic_get_v4_route(dst_addr, &dst);
- else if (dst_addr->sin_family == AF_INET6) {
- struct sockaddr_in6 *dst_addr6 =
- (struct sockaddr_in6 *) dst_addr;
-
- err = cnic_get_v6_route(dst_addr6, &dst);
- } else
- return NULL;
-
- if (err)
- return NULL;
-
- if (!dst->dev)
- goto done;
-
- cnic_get_vlan(dst->dev, &netdev);
-
- dev = cnic_from_netdev(netdev);
-
-done:
- dst_release(dst);
- if (dev)
- cnic_put(dev);
- return dev;
-}
-
-static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
-{
- struct cnic_dev *dev = csk->dev;
- struct cnic_local *cp = dev->cnic_priv;
-
- return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
-}
-
-static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
-{
- struct cnic_dev *dev = csk->dev;
- struct cnic_local *cp = dev->cnic_priv;
- int is_v6, rc = 0;
- struct dst_entry *dst = NULL;
- struct net_device *realdev;
- __be16 local_port;
- u32 port_id;
-
- if (saddr->local.v6.sin6_family == AF_INET6 &&
- saddr->remote.v6.sin6_family == AF_INET6)
- is_v6 = 1;
- else if (saddr->local.v4.sin_family == AF_INET &&
- saddr->remote.v4.sin_family == AF_INET)
- is_v6 = 0;
- else
- return -EINVAL;
-
- clear_bit(SK_F_IPV6, &csk->flags);
-
- if (is_v6) {
- set_bit(SK_F_IPV6, &csk->flags);
- cnic_get_v6_route(&saddr->remote.v6, &dst);
-
- memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
- sizeof(struct in6_addr));
- csk->dst_port = saddr->remote.v6.sin6_port;
- local_port = saddr->local.v6.sin6_port;
-
- } else {
- cnic_get_v4_route(&saddr->remote.v4, &dst);
-
- csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
- csk->dst_port = saddr->remote.v4.sin_port;
- local_port = saddr->local.v4.sin_port;
- }
-
- csk->vlan_id = 0;
- csk->mtu = dev->netdev->mtu;
- if (dst && dst->dev) {
- u16 vlan = cnic_get_vlan(dst->dev, &realdev);
- if (realdev == dev->netdev) {
- csk->vlan_id = vlan;
- csk->mtu = dst_mtu(dst);
- }
- }
-
- port_id = be16_to_cpu(local_port);
- if (port_id >= CNIC_LOCAL_PORT_MIN &&
- port_id < CNIC_LOCAL_PORT_MAX) {
- if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
- port_id = 0;
- } else
- port_id = 0;
-
- if (!port_id) {
- port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
- if (port_id == -1) {
- rc = -ENOMEM;
- goto err_out;
- }
- local_port = cpu_to_be16(port_id);
- }
- csk->src_port = local_port;
-
-err_out:
- dst_release(dst);
- return rc;
-}
-
-static void cnic_init_csk_state(struct cnic_sock *csk)
-{
- csk->state = 0;
- clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
- clear_bit(SK_F_CLOSING, &csk->flags);
-}
-
-static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
-{
- struct cnic_local *cp = csk->dev->cnic_priv;
- int err = 0;
-
- if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
- return -EOPNOTSUPP;
-
- if (!cnic_in_use(csk))
- return -EINVAL;
-
- if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
- return -EINVAL;
-
- cnic_init_csk_state(csk);
-
- err = cnic_get_route(csk, saddr);
- if (err)
- goto err_out;
-
- err = cnic_resolve_addr(csk, saddr);
- if (!err)
- return 0;
-
-err_out:
- clear_bit(SK_F_CONNECT_START, &csk->flags);
- return err;
-}
-
-static int cnic_cm_abort(struct cnic_sock *csk)
-{
- struct cnic_local *cp = csk->dev->cnic_priv;
- u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
-
- if (!cnic_in_use(csk))
- return -EINVAL;
-
- if (cnic_abort_prep(csk))
- return cnic_cm_abort_req(csk);
-
- /* Getting here means that we haven't started connect, or
- * connect was not successful.
- */
-
- cp->close_conn(csk, opcode);
- if (csk->state != opcode)
- return -EALREADY;
-
- return 0;
-}
-
-static int cnic_cm_close(struct cnic_sock *csk)
-{
- if (!cnic_in_use(csk))
- return -EINVAL;
-
- if (cnic_close_prep(csk)) {
- csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
- return cnic_cm_close_req(csk);
- } else {
- return -EALREADY;
- }
- return 0;
-}
-
-static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
- u8 opcode)
-{
- struct cnic_ulp_ops *ulp_ops;
- int ulp_type = csk->ulp_type;
-
- rcu_read_lock();
- ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
- if (ulp_ops) {
- if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
- ulp_ops->cm_connect_complete(csk);
- else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
- ulp_ops->cm_close_complete(csk);
- else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
- ulp_ops->cm_remote_abort(csk);
- else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
- ulp_ops->cm_abort_complete(csk);
- else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
- ulp_ops->cm_remote_close(csk);
- }
- rcu_read_unlock();
-}
-
-static int cnic_cm_set_pg(struct cnic_sock *csk)
-{
- if (cnic_offld_prep(csk)) {
- if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
- cnic_cm_update_pg(csk);
- else
- cnic_cm_offload_pg(csk);
- }
- return 0;
-}
-
-static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u32 l5_cid = kcqe->pg_host_opaque;
- u8 opcode = kcqe->op_code;
- struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
-
- csk_hold(csk);
- if (!cnic_in_use(csk))
- goto done;
-
- if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
- clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
- goto done;
- }
- /* Possible PG kcqe status: SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
- if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
- clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
- cnic_cm_upcall(cp, csk,
- L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
- goto done;
- }
-
- csk->pg_cid = kcqe->pg_cid;
- set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
- cnic_cm_conn_req(csk);
-
-done:
- csk_put(csk);
-}
-
-static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
- u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
- struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
-
- ctx->timestamp = jiffies;
- ctx->wait_cond = 1;
- wake_up(&ctx->waitq);
-}
-
-static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
- u8 opcode = l4kcqe->op_code;
- u32 l5_cid;
- struct cnic_sock *csk;
-
- if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
- cnic_process_fcoe_term_conn(dev, kcqe);
- return;
- }
- if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
- opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
- cnic_cm_process_offld_pg(dev, l4kcqe);
- return;
- }
-
- l5_cid = l4kcqe->conn_id;
- if (opcode & 0x80)
- l5_cid = l4kcqe->cid;
- if (l5_cid >= MAX_CM_SK_TBL_SZ)
- return;
-
- csk = &cp->csk_tbl[l5_cid];
- csk_hold(csk);
-
- if (!cnic_in_use(csk)) {
- csk_put(csk);
- return;
- }
-
- switch (opcode) {
- case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
- if (l4kcqe->status != 0) {
- clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
- cnic_cm_upcall(cp, csk,
- L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
- }
- break;
- case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
- if (l4kcqe->status == 0)
- set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
-
- smp_mb__before_clear_bit();
- clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
- cnic_cm_upcall(cp, csk, opcode);
- break;
-
- case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
- case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
- case L4_KCQE_OPCODE_VALUE_RESET_COMP:
- case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
- case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
- cp->close_conn(csk, opcode);
- break;
-
- case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
- /* after we already sent CLOSE_REQ */
- if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) &&
- !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags) &&
- csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
- cp->close_conn(csk, L4_KCQE_OPCODE_VALUE_RESET_COMP);
- else
- cnic_cm_upcall(cp, csk, opcode);
- break;
- }
- csk_put(csk);
-}
-
-static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
-{
- struct cnic_dev *dev = data;
- int i;
-
- for (i = 0; i < num; i++)
- cnic_cm_process_kcqe(dev, kcqe[i]);
-}
-
-static struct cnic_ulp_ops cm_ulp_ops = {
- .indicate_kcqes = cnic_cm_indicate_kcqe,
-};
-
-static void cnic_cm_free_mem(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
-
- kfree(cp->csk_tbl);
- cp->csk_tbl = NULL;
- cnic_free_id_tbl(&cp->csk_port_tbl);
-}
-
-static int cnic_cm_alloc_mem(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u32 port_id;
-
- cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ,
- GFP_KERNEL);
- if (!cp->csk_tbl)
- return -ENOMEM;
-
- port_id = random32();
- port_id %= CNIC_LOCAL_PORT_RANGE;
- if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
- CNIC_LOCAL_PORT_MIN, port_id)) {
- cnic_cm_free_mem(dev);
- return -ENOMEM;
- }
- return 0;
-}
-
-static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
-{
- if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
- /* Unsolicited RESET_COMP or RESET_RECEIVED */
- opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
- csk->state = opcode;
- }
-
- /* 1. If event opcode matches the expected event in csk->state
- * 2. If the expected event is CLOSE_COMP or RESET_COMP, we accept any
- * event
- * 3. If the expected event is 0, meaning the connection was never
- * never established, we accept the opcode from cm_abort.
- */
- if (opcode == csk->state || csk->state == 0 ||
- csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP ||
- csk->state == L4_KCQE_OPCODE_VALUE_RESET_COMP) {
- if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
- if (csk->state == 0)
- csk->state = opcode;
- return 1;
- }
- }
- return 0;
-}
-
-static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
-{
- struct cnic_dev *dev = csk->dev;
- struct cnic_local *cp = dev->cnic_priv;
-
- if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
- cnic_cm_upcall(cp, csk, opcode);
- return;
- }
-
- clear_bit(SK_F_CONNECT_START, &csk->flags);
- cnic_close_conn(csk);
- csk->state = opcode;
- cnic_cm_upcall(cp, csk, opcode);
-}
-
-static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
-{
-}
-
-static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
-{
- u32 seed;
-
- seed = random32();
- cnic_ctx_wr(dev, 45, 0, seed);
- return 0;
-}
-
-static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
-{
- struct cnic_dev *dev = csk->dev;
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
- union l5cm_specific_data l5_data;
- u32 cmd = 0;
- int close_complete = 0;
-
- switch (opcode) {
- case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
- case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
- case L4_KCQE_OPCODE_VALUE_RESET_COMP:
- if (cnic_ready_to_close(csk, opcode)) {
- if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
- cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
- else
- close_complete = 1;
- }
- break;
- case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
- cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
- break;
- case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
- close_complete = 1;
- break;
- }
- if (cmd) {
- memset(&l5_data, 0, sizeof(l5_data));
-
- cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
- &l5_data);
- } else if (close_complete) {
- ctx->timestamp = jiffies;
- cnic_close_conn(csk);
- cnic_cm_upcall(cp, csk, csk->state);
- }
-}
-
-static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
-
- if (!cp->ctx_tbl)
- return;
-
- if (!netif_running(dev->netdev))
- return;
-
- cnic_bnx2x_delete_wait(dev, 0);
-
- cancel_delayed_work(&cp->delete_task);
- flush_workqueue(cnic_wq);
-
- if (atomic_read(&cp->iscsi_conn) != 0)
- netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
- atomic_read(&cp->iscsi_conn));
-}
-
-static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u32 pfid = cp->pfid;
- u32 port = CNIC_PORT(cp);
-
- cnic_init_bnx2x_mac(dev);
- cnic_bnx2x_set_tcp_timestamp(dev, 1);
-
- CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
-
- CNIC_WR(dev, BAR_XSTRORM_INTMEM +
- XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
- CNIC_WR(dev, BAR_XSTRORM_INTMEM +
- XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
- DEF_MAX_DA_COUNT);
-
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
- CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
- XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
- CNIC_WR(dev, BAR_XSTRORM_INTMEM +
- XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
-
- CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
- DEF_MAX_CWND);
- return 0;
-}
-
-static void cnic_delete_task(struct work_struct *work)
-{
- struct cnic_local *cp;
- struct cnic_dev *dev;
- u32 i;
- int need_resched = 0;
-
- cp = container_of(work, struct cnic_local, delete_task.work);
- dev = cp->dev;
-
- if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) {
- struct drv_ctl_info info;
-
- cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI);
-
- info.cmd = DRV_CTL_ISCSI_STOPPED_CMD;
- cp->ethdev->drv_ctl(dev->netdev, &info);
- }
-
- for (i = 0; i < cp->max_cid_space; i++) {
- struct cnic_context *ctx = &cp->ctx_tbl[i];
- int err;
-
- if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
- !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
- continue;
-
- if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
- need_resched = 1;
- continue;
- }
-
- if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
- continue;
-
- err = cnic_bnx2x_destroy_ramrod(dev, i);
-
- cnic_free_bnx2x_conn_resc(dev, i);
- if (!err) {
- if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
- atomic_dec(&cp->iscsi_conn);
-
- clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
- }
- }
-
- if (need_resched)
- queue_delayed_work(cnic_wq, &cp->delete_task,
- msecs_to_jiffies(10));
-
-}
-
-static int cnic_cm_open(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- int err;
-
- err = cnic_cm_alloc_mem(dev);
- if (err)
- return err;
-
- err = cp->start_cm(dev);
-
- if (err)
- goto err_out;
-
- INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
-
- dev->cm_create = cnic_cm_create;
- dev->cm_destroy = cnic_cm_destroy;
- dev->cm_connect = cnic_cm_connect;
- dev->cm_abort = cnic_cm_abort;
- dev->cm_close = cnic_cm_close;
- dev->cm_select_dev = cnic_cm_select_dev;
-
- cp->ulp_handle[CNIC_ULP_L4] = dev;
- rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
- return 0;
-
-err_out:
- cnic_cm_free_mem(dev);
- return err;
-}
-
-static int cnic_cm_shutdown(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- int i;
-
- cp->stop_cm(dev);
-
- if (!cp->csk_tbl)
- return 0;
-
- for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
- struct cnic_sock *csk = &cp->csk_tbl[i];
-
- clear_bit(SK_F_INUSE, &csk->flags);
- cnic_cm_cleanup(csk);
- }
- cnic_cm_free_mem(dev);
-
- return 0;
-}
-
-static void cnic_init_context(struct cnic_dev *dev, u32 cid)
-{
- u32 cid_addr;
- int i;
-
- cid_addr = GET_CID_ADDR(cid);
-
- for (i = 0; i < CTX_SIZE; i += 4)
- cnic_ctx_wr(dev, cid_addr, i, 0);
-}
-
-static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
-{
- struct cnic_local *cp = dev->cnic_priv;
- int ret = 0, i;
- u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
-
- if (CHIP_NUM(cp) != CHIP_NUM_5709)
- return 0;
-
- for (i = 0; i < cp->ctx_blks; i++) {
- int j;
- u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
- u32 val;
-
- memset(cp->ctx_arr[i].ctx, 0, BCM_PAGE_SIZE);
-
- CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
- (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
- CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
- (u64) cp->ctx_arr[i].mapping >> 32);
- CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
- BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
- for (j = 0; j < 10; j++) {
-
- val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
- if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
- break;
- udelay(5);
- }
- if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
- ret = -EBUSY;
- break;
- }
- }
- return ret;
-}
-
-static void cnic_free_irq(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
-
- if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
- cp->disable_int_sync(dev);
- tasklet_kill(&cp->cnic_irq_task);
- free_irq(ethdev->irq_arr[0].vector, dev);
- }
-}
-
-static int cnic_request_irq(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- int err;
-
- err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
- if (err)
- tasklet_disable(&cp->cnic_irq_task);
-
- return err;
-}
-
-static int cnic_init_bnx2_irq(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
-
- if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
- int err, i = 0;
- int sblk_num = cp->status_blk_num;
- u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
- BNX2_HC_SB_CONFIG_1;
-
- CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
-
- CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
- CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
- CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
-
- cp->last_status_idx = cp->status_blk.bnx2->status_idx;
- tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix,
- (unsigned long) dev);
- err = cnic_request_irq(dev);
- if (err)
- return err;
-
- while (cp->status_blk.bnx2->status_completion_producer_index &&
- i < 10) {
- CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
- 1 << (11 + sblk_num));
- udelay(10);
- i++;
- barrier();
- }
- if (cp->status_blk.bnx2->status_completion_producer_index) {
- cnic_free_irq(dev);
- goto failed;
- }
-
- } else {
- struct status_block *sblk = cp->status_blk.gen;
- u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
- int i = 0;
-
- while (sblk->status_completion_producer_index && i < 10) {
- CNIC_WR(dev, BNX2_HC_COMMAND,
- hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
- udelay(10);
- i++;
- barrier();
- }
- if (sblk->status_completion_producer_index)
- goto failed;
-
- }
- return 0;
-
-failed:
- netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
- return -EBUSY;
-}
-
-static void cnic_enable_bnx2_int(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
-
- if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
- return;
-
- 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_disable_bnx2_int_sync(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
-
- if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
- return;
-
- CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
- BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
- CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
- synchronize_irq(ethdev->irq_arr[0].vector);
-}
-
-static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- struct cnic_uio_dev *udev = cp->udev;
- u32 cid_addr, tx_cid, sb_id;
- u32 val, offset0, offset1, offset2, offset3;
- int i;
- struct tx_bd *txbd;
- dma_addr_t buf_map, ring_map = udev->l2_ring_map;
- struct status_block *s_blk = cp->status_blk.gen;
-
- sb_id = cp->status_blk_num;
- tx_cid = 20;
- cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
- if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
- struct status_block_msix *sblk = cp->status_blk.bnx2;
-
- tx_cid = TX_TSS_CID + sb_id - 1;
- CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
- (TX_TSS_CID << 7));
- cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
- }
- cp->tx_cons = *cp->tx_cons_ptr;
-
- cid_addr = GET_CID_ADDR(tx_cid);
- if (CHIP_NUM(cp) == CHIP_NUM_5709) {
- u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
-
- for (i = 0; i < PHY_CTX_SIZE; i += 4)
- cnic_ctx_wr(dev, cid_addr2, i, 0);
-
- offset0 = BNX2_L2CTX_TYPE_XI;
- offset1 = BNX2_L2CTX_CMD_TYPE_XI;
- offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
- offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
- } else {
- cnic_init_context(dev, tx_cid);
- cnic_init_context(dev, tx_cid + 1);
-
- offset0 = BNX2_L2CTX_TYPE;
- offset1 = BNX2_L2CTX_CMD_TYPE;
- offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
- offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
- }
- val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
- cnic_ctx_wr(dev, cid_addr, offset0, val);
-
- val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
- cnic_ctx_wr(dev, cid_addr, offset1, val);
-
- txbd = udev->l2_ring;
-
- buf_map = udev->l2_buf_map;
- for (i = 0; i < MAX_TX_DESC_CNT; i++, txbd++) {
- txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
- txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
- }
- val = (u64) ring_map >> 32;
- cnic_ctx_wr(dev, cid_addr, offset2, val);
- txbd->tx_bd_haddr_hi = val;
-
- val = (u64) ring_map & 0xffffffff;
- cnic_ctx_wr(dev, cid_addr, offset3, val);
- txbd->tx_bd_haddr_lo = val;
-}
-
-static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- struct cnic_uio_dev *udev = cp->udev;
- u32 cid_addr, sb_id, val, coal_reg, coal_val;
- int i;
- struct rx_bd *rxbd;
- struct status_block *s_blk = cp->status_blk.gen;
- dma_addr_t ring_map = udev->l2_ring_map;
-
- sb_id = cp->status_blk_num;
- cnic_init_context(dev, 2);
- cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
- coal_reg = BNX2_HC_COMMAND;
- coal_val = CNIC_RD(dev, coal_reg);
- if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
- struct status_block_msix *sblk = cp->status_blk.bnx2;
-
- cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
- coal_reg = BNX2_HC_COALESCE_NOW;
- coal_val = 1 << (11 + sb_id);
- }
- i = 0;
- while (!(*cp->rx_cons_ptr != 0) && i < 10) {
- CNIC_WR(dev, coal_reg, coal_val);
- udelay(10);
- i++;
- barrier();
- }
- cp->rx_cons = *cp->rx_cons_ptr;
-
- cid_addr = GET_CID_ADDR(2);
- val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
- BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
- cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
-
- if (sb_id == 0)
- val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
- else
- val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
- cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
-
- rxbd = udev->l2_ring + BCM_PAGE_SIZE;
- for (i = 0; i < MAX_RX_DESC_CNT; i++, rxbd++) {
- dma_addr_t buf_map;
- int n = (i % cp->l2_rx_ring_size) + 1;
-
- buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
- rxbd->rx_bd_len = cp->l2_single_buf_size;
- rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
- rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
- rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
- }
- val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
- cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
- rxbd->rx_bd_haddr_hi = val;
-
- val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
- cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
- rxbd->rx_bd_haddr_lo = val;
-
- val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
- cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
-}
-
-static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
-{
- struct kwqe *wqes[1], l2kwqe;
-
- memset(&l2kwqe, 0, sizeof(l2kwqe));
- wqes[0] = &l2kwqe;
- l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
- (L2_KWQE_OPCODE_VALUE_FLUSH <<
- KWQE_OPCODE_SHIFT) | 2;
- dev->submit_kwqes(dev, wqes, 1);
-}
-
-static void cnic_set_bnx2_mac(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u32 val;
-
- val = cp->func << 2;
-
- cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
-
- val = cnic_reg_rd_ind(dev, cp->shmem_base +
- BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
- dev->mac_addr[0] = (u8) (val >> 8);
- dev->mac_addr[1] = (u8) val;
-
- CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
-
- val = cnic_reg_rd_ind(dev, cp->shmem_base +
- BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
- dev->mac_addr[2] = (u8) (val >> 24);
- dev->mac_addr[3] = (u8) (val >> 16);
- dev->mac_addr[4] = (u8) (val >> 8);
- dev->mac_addr[5] = (u8) val;
-
- CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
-
- val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
- if (CHIP_NUM(cp) != CHIP_NUM_5709)
- val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
-
- CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
- CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
- CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
-}
-
-static int cnic_start_bnx2_hw(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- struct status_block *sblk = cp->status_blk.gen;
- u32 val, kcq_cid_addr, kwq_cid_addr;
- int err;
-
- cnic_set_bnx2_mac(dev);
-
- val = CNIC_RD(dev, BNX2_MQ_CONFIG);
- val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
- if (BCM_PAGE_BITS > 12)
- val |= (12 - 8) << 4;
- else
- val |= (BCM_PAGE_BITS - 8) << 4;
-
- CNIC_WR(dev, BNX2_MQ_CONFIG, val);
-
- CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
- CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
- CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
-
- err = cnic_setup_5709_context(dev, 1);
- if (err)
- return err;
-
- cnic_init_context(dev, KWQ_CID);
- cnic_init_context(dev, KCQ_CID);
-
- kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
- cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
-
- cp->max_kwq_idx = MAX_KWQ_IDX;
- cp->kwq_prod_idx = 0;
- cp->kwq_con_idx = 0;
- set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
-
- if (CHIP_NUM(cp) == CHIP_NUM_5706 || CHIP_NUM(cp) == CHIP_NUM_5708)
- cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
- else
- cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
-
- /* Initialize the kernel work queue context. */
- val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
- (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
- cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
-
- val = (BCM_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
- cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
-
- val = ((BCM_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
- cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
-
- val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
- cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
-
- val = (u32) cp->kwq_info.pgtbl_map;
- cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
-
- kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
- cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
-
- cp->kcq1.sw_prod_idx = 0;
- cp->kcq1.hw_prod_idx_ptr =
- (u16 *) &sblk->status_completion_producer_index;
-
- cp->kcq1.status_idx_ptr = (u16 *) &sblk->status_idx;
-
- /* Initialize the kernel complete queue context. */
- val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
- (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
- cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
-
- val = (BCM_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
- cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
-
- val = ((BCM_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
- cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
-
- val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
- cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
-
- val = (u32) cp->kcq1.dma.pgtbl_map;
- cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
-
- cp->int_num = 0;
- if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
- struct status_block_msix *msblk = cp->status_blk.bnx2;
- u32 sb_id = cp->status_blk_num;
- u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
-
- cp->kcq1.hw_prod_idx_ptr =
- (u16 *) &msblk->status_completion_producer_index;
- cp->kcq1.status_idx_ptr = (u16 *) &msblk->status_idx;
- cp->kwq_con_idx_ptr = (u16 *) &msblk->status_cmd_consumer_index;
- cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
- cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
- cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
- }
-
- /* Enable Commnad Scheduler notification when we write to the
- * host producer index of the kernel contexts. */
- CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
-
- /* Enable Command Scheduler notification when we write to either
- * the Send Queue or Receive Queue producer indexes of the kernel
- * bypass contexts. */
- CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
- CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
-
- /* Notify COM when the driver post an application buffer. */
- CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
-
- /* Set the CP and COM doorbells. These two processors polls the
- * doorbell for a non zero value before running. This must be done
- * after setting up the kernel queue contexts. */
- cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
- cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
-
- cnic_init_bnx2_tx_ring(dev);
- cnic_init_bnx2_rx_ring(dev);
-
- err = cnic_init_bnx2_irq(dev);
- if (err) {
- netdev_err(dev->netdev, "cnic_init_irq failed\n");
- cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
- cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
- return err;
- }
-
- return 0;
-}
-
-static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- u32 start_offset = ethdev->ctx_tbl_offset;
- int i;
-
- for (i = 0; i < cp->ctx_blks; i++) {
- struct cnic_ctx *ctx = &cp->ctx_arr[i];
- dma_addr_t map = ctx->mapping;
-
- if (cp->ctx_align) {
- unsigned long mask = cp->ctx_align - 1;
-
- map = (map + mask) & ~mask;
- }
-
- cnic_ctx_tbl_wr(dev, start_offset + i, map);
- }
-}
-
-static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- int err = 0;
-
- tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh,
- (unsigned long) dev);
- if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
- err = cnic_request_irq(dev);
-
- return err;
-}
-
-static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
- u16 sb_id, u8 sb_index,
- u8 disable)
-{
-
- u32 addr = BAR_CSTRORM_INTMEM +
- CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
- offsetof(struct hc_status_block_data_e1x, index_data) +
- sizeof(struct hc_index_data)*sb_index +
- offsetof(struct hc_index_data, flags);
- u16 flags = CNIC_RD16(dev, addr);
- /* clear and set */
- flags &= ~HC_INDEX_DATA_HC_ENABLED;
- flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
- HC_INDEX_DATA_HC_ENABLED);
- CNIC_WR16(dev, addr, flags);
-}
-
-static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u8 sb_id = cp->status_blk_num;
-
- CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
- CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
- offsetof(struct hc_status_block_data_e1x, index_data) +
- sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
- offsetof(struct hc_index_data, timeout), 64 / 4);
- cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
-}
-
-static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
-{
-}
-
-static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
- struct client_init_ramrod_data *data)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_uio_dev *udev = cp->udev;
- union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
- dma_addr_t buf_map, ring_map = udev->l2_ring_map;
- struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
- int i;
- u32 cli = cp->ethdev->iscsi_l2_client_id;
- u32 val;
-
- memset(txbd, 0, BCM_PAGE_SIZE);
-
- buf_map = udev->l2_buf_map;
- for (i = 0; i < MAX_TX_DESC_CNT; i += 3, txbd += 3) {
- struct eth_tx_start_bd *start_bd = &txbd->start_bd;
- struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
-
- start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
- start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
- reg_bd->addr_hi = start_bd->addr_hi;
- reg_bd->addr_lo = start_bd->addr_lo + 0x10;
- start_bd->nbytes = cpu_to_le16(0x10);
- start_bd->nbd = cpu_to_le16(3);
- start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
- start_bd->general_data = (UNICAST_ADDRESS <<
- ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT);
- start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
-
- }
-
- val = (u64) ring_map >> 32;
- txbd->next_bd.addr_hi = cpu_to_le32(val);
-
- data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
-
- val = (u64) ring_map & 0xffffffff;
- txbd->next_bd.addr_lo = cpu_to_le32(val);
-
- data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
-
- /* Other ramrod params */
- data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
- data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
-
- /* reset xstorm per client statistics */
- if (cli < MAX_STAT_COUNTER_ID) {
- data->general.statistics_zero_flg = 1;
- data->general.statistics_en_flg = 1;
- data->general.statistics_counter_id = cli;
- }
-
- cp->tx_cons_ptr =
- &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
-}
-
-static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
- struct client_init_ramrod_data *data)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_uio_dev *udev = cp->udev;
- struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
- BCM_PAGE_SIZE);
- struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
- (udev->l2_ring + (2 * BCM_PAGE_SIZE));
- struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
- int i;
- u32 cli = cp->ethdev->iscsi_l2_client_id;
- int cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
- u32 val;
- dma_addr_t ring_map = udev->l2_ring_map;
-
- /* General data */
- data->general.client_id = cli;
- data->general.activate_flg = 1;
- data->general.sp_client_id = cli;
- data->general.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
- data->general.func_id = cp->pfid;
-
- for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
- dma_addr_t buf_map;
- int n = (i % cp->l2_rx_ring_size) + 1;
-
- buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
- rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
- rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
- }
-
- val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
- rxbd->addr_hi = cpu_to_le32(val);
- data->rx.bd_page_base.hi = cpu_to_le32(val);
-
- val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
- rxbd->addr_lo = cpu_to_le32(val);
- data->rx.bd_page_base.lo = cpu_to_le32(val);
-
- rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
- val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) >> 32;
- rxcqe->addr_hi = cpu_to_le32(val);
- data->rx.cqe_page_base.hi = cpu_to_le32(val);
-
- val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) & 0xffffffff;
- rxcqe->addr_lo = cpu_to_le32(val);
- data->rx.cqe_page_base.lo = cpu_to_le32(val);
-
- /* Other ramrod params */
- data->rx.client_qzone_id = cl_qzone_id;
- data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
- data->rx.status_block_id = BNX2X_DEF_SB_ID;
-
- data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
-
- data->rx.max_bytes_on_bd = cpu_to_le16(cp->l2_single_buf_size);
- data->rx.outer_vlan_removal_enable_flg = 1;
- data->rx.silent_vlan_removal_flg = 1;
- data->rx.silent_vlan_value = 0;
- data->rx.silent_vlan_mask = 0xffff;
-
- cp->rx_cons_ptr =
- &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
- cp->rx_cons = *cp->rx_cons_ptr;
-}
-
-static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- u32 pfid = cp->pfid;
-
- cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
- cp->kcq1.sw_prod_idx = 0;
-
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
- struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
-
- cp->kcq1.hw_prod_idx_ptr =
- &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
- cp->kcq1.status_idx_ptr =
- &sb->sb.running_index[SM_RX_ID];
- } else {
- struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
-
- cp->kcq1.hw_prod_idx_ptr =
- &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
- cp->kcq1.status_idx_ptr =
- &sb->sb.running_index[SM_RX_ID];
- }
-
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
- struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
-
- cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
- USTORM_FCOE_EQ_PROD_OFFSET(pfid);
- cp->kcq2.sw_prod_idx = 0;
- cp->kcq2.hw_prod_idx_ptr =
- &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
- cp->kcq2.status_idx_ptr =
- &sb->sb.running_index[SM_RX_ID];
- }
-}
-
-static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- int func = CNIC_FUNC(cp), ret;
- u32 pfid;
-
- cp->port_mode = CHIP_PORT_MODE_NONE;
-
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
- u32 val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN_OVWR);
-
- if (!(val & 1))
- val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN);
- else
- val = (val >> 1) & 1;
-
- if (val) {
- cp->port_mode = CHIP_4_PORT_MODE;
- cp->pfid = func >> 1;
- } else {
- cp->port_mode = CHIP_2_PORT_MODE;
- cp->pfid = func & 0x6;
- }
- } else {
- cp->pfid = func;
- }
- pfid = cp->pfid;
-
- ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
- cp->iscsi_start_cid, 0);
-
- if (ret)
- return -ENOMEM;
-
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
- ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl,
- BNX2X_FCOE_NUM_CONNECTIONS,
- cp->fcoe_start_cid, 0);
-
- if (ret)
- return -ENOMEM;
- }
-
- cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
-
- cnic_init_bnx2x_kcq(dev);
-
- /* Only 1 EQ */
- CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
- CNIC_WR(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
- CNIC_WR(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
- cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
- CNIC_WR(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
- (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
- CNIC_WR(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
- cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
- CNIC_WR(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
- (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
- CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
- CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
- CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
- HC_INDEX_ISCSI_EQ_CONS);
-
- CNIC_WR(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
- cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
- CNIC_WR(dev, BAR_USTRORM_INTMEM +
- USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
- (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
-
- CNIC_WR(dev, BAR_TSTRORM_INTMEM +
- TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
-
- cnic_setup_bnx2x_context(dev);
-
- ret = cnic_init_bnx2x_irq(dev);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static void cnic_init_rings(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_uio_dev *udev = cp->udev;
-
- if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
- return;
-
- if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
- cnic_init_bnx2_tx_ring(dev);
- cnic_init_bnx2_rx_ring(dev);
- set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
- } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
- u32 cli = cp->ethdev->iscsi_l2_client_id;
- u32 cid = cp->ethdev->iscsi_l2_cid;
- u32 cl_qzone_id;
- struct client_init_ramrod_data *data;
- union l5cm_specific_data l5_data;
- struct ustorm_eth_rx_producers rx_prods = {0};
- u32 off, i, *cid_ptr;
-
- rx_prods.bd_prod = 0;
- rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
- barrier();
-
- cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
-
- off = BAR_USTRORM_INTMEM +
- (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) ?
- USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
- USTORM_RX_PRODS_E1X_OFFSET(CNIC_PORT(cp), cli));
-
- for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
- CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
-
- set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
-
- data = udev->l2_buf;
- cid_ptr = udev->l2_buf + 12;
-
- memset(data, 0, sizeof(*data));
-
- cnic_init_bnx2x_tx_ring(dev, data);
- cnic_init_bnx2x_rx_ring(dev, data);
-
- l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
- l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
-
- set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
-
- cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
- cid, ETH_CONNECTION_TYPE, &l5_data);
-
- i = 0;
- while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
- ++i < 10)
- msleep(1);
-
- if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
- netdev_err(dev->netdev,
- "iSCSI CLIENT_SETUP did not complete\n");
- cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
- cnic_ring_ctl(dev, cid, cli, 1);
- *cid_ptr = cid;
- }
-}
-
-static void cnic_shutdown_rings(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_uio_dev *udev = cp->udev;
- void *rx_ring;
-
- if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
- return;
-
- if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
- cnic_shutdown_bnx2_rx_ring(dev);
- } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
- u32 cli = cp->ethdev->iscsi_l2_client_id;
- u32 cid = cp->ethdev->iscsi_l2_cid;
- union l5cm_specific_data l5_data;
- int i;
-
- cnic_ring_ctl(dev, cid, cli, 0);
-
- set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
-
- l5_data.phy_address.lo = cli;
- l5_data.phy_address.hi = 0;
- cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
- cid, ETH_CONNECTION_TYPE, &l5_data);
- i = 0;
- while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
- ++i < 10)
- msleep(1);
-
- if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
- netdev_err(dev->netdev,
- "iSCSI CLIENT_HALT did not complete\n");
- cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
-
- memset(&l5_data, 0, sizeof(l5_data));
- cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
- cid, NONE_CONNECTION_TYPE, &l5_data);
- msleep(10);
- }
- clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
- rx_ring = udev->l2_ring + BCM_PAGE_SIZE;
- memset(rx_ring, 0, BCM_PAGE_SIZE);
-}
-
-static int cnic_register_netdev(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- int err;
-
- if (!ethdev)
- return -ENODEV;
-
- if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
- return 0;
-
- err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
- if (err)
- netdev_err(dev->netdev, "register_cnic failed\n");
-
- return err;
-}
-
-static void cnic_unregister_netdev(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
-
- if (!ethdev)
- return;
-
- ethdev->drv_unregister_cnic(dev->netdev);
-}
-
-static int cnic_start_hw(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
- struct cnic_eth_dev *ethdev = cp->ethdev;
- int err;
-
- if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
- return -EALREADY;
-
- dev->regview = ethdev->io_base;
- pci_dev_get(dev->pcidev);
- cp->func = PCI_FUNC(dev->pcidev->devfn);
- cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
- cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
-
- err = cp->alloc_resc(dev);
- if (err) {
- netdev_err(dev->netdev, "allocate resource failure\n");
- goto err1;
- }
-
- err = cp->start_hw(dev);
- if (err)
- goto err1;
-
- err = cnic_cm_open(dev);
- if (err)
- goto err1;
-
- set_bit(CNIC_F_CNIC_UP, &dev->flags);
-
- cp->enable_int(dev);
-
- return 0;
-
-err1:
- cp->free_resc(dev);
- pci_dev_put(dev->pcidev);
- return err;
-}
-
-static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
-{
- cnic_disable_bnx2_int_sync(dev);
-
- cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
- cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
-
- cnic_init_context(dev, KWQ_CID);
- cnic_init_context(dev, KCQ_CID);
-
- cnic_setup_5709_context(dev, 0);
- cnic_free_irq(dev);
-
- cnic_free_resc(dev);
-}
-
-
-static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
-{
- struct cnic_local *cp = dev->cnic_priv;
-
- cnic_free_irq(dev);
- *cp->kcq1.hw_prod_idx_ptr = 0;
- CNIC_WR(dev, BAR_CSTRORM_INTMEM +
- CSTORM_ISCSI_EQ_CONS_OFFSET(cp->pfid, 0), 0);
- CNIC_WR16(dev, cp->kcq1.io_addr, 0);
- cnic_free_resc(dev);
-}
-
-static void cnic_stop_hw(struct cnic_dev *dev)
-{
- if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
- struct cnic_local *cp = dev->cnic_priv;
- int i = 0;
-
- /* Need to wait for the ring shutdown event to complete
- * before clearing the CNIC_UP flag.
- */
- while (cp->udev->uio_dev != -1 && i < 15) {
- msleep(100);
- i++;
- }
- cnic_shutdown_rings(dev);
- clear_bit(CNIC_F_CNIC_UP, &dev->flags);
- rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], NULL);
- synchronize_rcu();
- cnic_cm_shutdown(dev);
- cp->stop_hw(dev);
- pci_dev_put(dev->pcidev);
- }
-}
-
-static void cnic_free_dev(struct cnic_dev *dev)
-{
- int i = 0;
-
- while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
- msleep(100);
- i++;
- }
- if (atomic_read(&dev->ref_count) != 0)
- netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
-
- netdev_info(dev->netdev, "Removed CNIC device\n");
- dev_put(dev->netdev);
- kfree(dev);
-}
-
-static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
- struct pci_dev *pdev)
-{
- struct cnic_dev *cdev;
- struct cnic_local *cp;
- int alloc_size;
-
- alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
-
- cdev = kzalloc(alloc_size , GFP_KERNEL);
- if (cdev == NULL) {
- netdev_err(dev, "allocate dev struct failure\n");
- return NULL;
- }
-
- cdev->netdev = dev;
- cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
- cdev->register_device = cnic_register_device;
- cdev->unregister_device = cnic_unregister_device;
- cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
-
- cp = cdev->cnic_priv;
- cp->dev = cdev;
- cp->l2_single_buf_size = 0x400;
- cp->l2_rx_ring_size = 3;
-
- spin_lock_init(&cp->cnic_ulp_lock);
-
- netdev_info(dev, "Added CNIC device\n");
-
- return cdev;
-}
-
-static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
-{
- struct pci_dev *pdev;
- struct cnic_dev *cdev;
- struct cnic_local *cp;
- struct cnic_eth_dev *ethdev = NULL;
- struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
-
- probe = symbol_get(bnx2_cnic_probe);
- if (probe) {
- ethdev = (*probe)(dev);
- symbol_put(bnx2_cnic_probe);
- }
- if (!ethdev)
- return NULL;
-
- pdev = ethdev->pdev;
- if (!pdev)
- return NULL;
-
- dev_hold(dev);
- pci_dev_get(pdev);
- if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
- pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
- (pdev->revision < 0x10)) {
- pci_dev_put(pdev);
- goto cnic_err;
- }
- pci_dev_put(pdev);
-
- cdev = cnic_alloc_dev(dev, pdev);
- if (cdev == NULL)
- goto cnic_err;
-
- set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
- cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
-
- cp = cdev->cnic_priv;
- cp->ethdev = ethdev;
- cdev->pcidev = pdev;
- cp->chip_id = ethdev->chip_id;
-
- cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
-
- cp->cnic_ops = &cnic_bnx2_ops;
- cp->start_hw = cnic_start_bnx2_hw;
- cp->stop_hw = cnic_stop_bnx2_hw;
- cp->setup_pgtbl = cnic_setup_page_tbl;
- cp->alloc_resc = cnic_alloc_bnx2_resc;
- cp->free_resc = cnic_free_resc;
- cp->start_cm = cnic_cm_init_bnx2_hw;
- cp->stop_cm = cnic_cm_stop_bnx2_hw;
- cp->enable_int = cnic_enable_bnx2_int;
- cp->disable_int_sync = cnic_disable_bnx2_int_sync;
- cp->close_conn = cnic_close_bnx2_conn;
- return cdev;
-
-cnic_err:
- dev_put(dev);
- return NULL;
-}
-
-static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
-{
- struct pci_dev *pdev;
- struct cnic_dev *cdev;
- struct cnic_local *cp;
- struct cnic_eth_dev *ethdev = NULL;
- struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
-
- probe = symbol_get(bnx2x_cnic_probe);
- if (probe) {
- ethdev = (*probe)(dev);
- symbol_put(bnx2x_cnic_probe);
- }
- if (!ethdev)
- return NULL;
-
- pdev = ethdev->pdev;
- if (!pdev)
- return NULL;
-
- dev_hold(dev);
- cdev = cnic_alloc_dev(dev, pdev);
- if (cdev == NULL) {
- dev_put(dev);
- return NULL;
- }
-
- set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
- cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
-
- cp = cdev->cnic_priv;
- cp->ethdev = ethdev;
- cdev->pcidev = pdev;
- cp->chip_id = ethdev->chip_id;
-
- if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
- cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) &&
- !(ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
- cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
-
- memcpy(cdev->mac_addr, ethdev->iscsi_mac, 6);
-
- cp->cnic_ops = &cnic_bnx2x_ops;
- cp->start_hw = cnic_start_bnx2x_hw;
- cp->stop_hw = cnic_stop_bnx2x_hw;
- cp->setup_pgtbl = cnic_setup_page_tbl_le;
- cp->alloc_resc = cnic_alloc_bnx2x_resc;
- cp->free_resc = cnic_free_resc;
- cp->start_cm = cnic_cm_init_bnx2x_hw;
- cp->stop_cm = cnic_cm_stop_bnx2x_hw;
- cp->enable_int = cnic_enable_bnx2x_int;
- cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
- if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
- cp->ack_int = cnic_ack_bnx2x_e2_msix;
- else
- cp->ack_int = cnic_ack_bnx2x_msix;
- cp->close_conn = cnic_close_bnx2x_conn;
- return cdev;
-}
-
-static struct cnic_dev *is_cnic_dev(struct net_device *dev)
-{
- struct ethtool_drvinfo drvinfo;
- struct cnic_dev *cdev = NULL;
-
- if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
- memset(&drvinfo, 0, sizeof(drvinfo));
- dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
-
- if (!strcmp(drvinfo.driver, "bnx2"))
- cdev = init_bnx2_cnic(dev);
- if (!strcmp(drvinfo.driver, "bnx2x"))
- cdev = init_bnx2x_cnic(dev);
- if (cdev) {
- write_lock(&cnic_dev_lock);
- list_add(&cdev->list, &cnic_dev_list);
- write_unlock(&cnic_dev_lock);
- }
- }
- return cdev;
-}
-
-static void cnic_rcv_netevent(struct cnic_local *cp, unsigned long event,
- u16 vlan_id)
-{
- int if_type;
-
- rcu_read_lock();
- for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
- struct cnic_ulp_ops *ulp_ops;
- void *ctx;
-
- ulp_ops = rcu_dereference(cp->ulp_ops[if_type]);
- if (!ulp_ops || !ulp_ops->indicate_netevent)
- continue;
-
- ctx = cp->ulp_handle[if_type];
-
- ulp_ops->indicate_netevent(ctx, event, vlan_id);
- }
- rcu_read_unlock();
-}
-
-/**
- * netdev event handler
- */
-static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
- void *ptr)
-{
- struct net_device *netdev = ptr;
- struct cnic_dev *dev;
- int new_dev = 0;
-
- dev = cnic_from_netdev(netdev);
-
- if (!dev && (event == NETDEV_REGISTER || netif_running(netdev))) {
- /* Check for the hot-plug device */
- dev = is_cnic_dev(netdev);
- if (dev) {
- new_dev = 1;
- cnic_hold(dev);
- }
- }
- if (dev) {
- struct cnic_local *cp = dev->cnic_priv;
-
- if (new_dev)
- cnic_ulp_init(dev);
- else if (event == NETDEV_UNREGISTER)
- cnic_ulp_exit(dev);
-
- if (event == NETDEV_UP || (new_dev && netif_running(netdev))) {
- if (cnic_register_netdev(dev) != 0) {
- cnic_put(dev);
- goto done;
- }
- if (!cnic_start_hw(dev))
- cnic_ulp_start(dev);
- }
-
- cnic_rcv_netevent(cp, event, 0);
-
- if (event == NETDEV_GOING_DOWN) {
- cnic_ulp_stop(dev);
- cnic_stop_hw(dev);
- cnic_unregister_netdev(dev);
- } else if (event == NETDEV_UNREGISTER) {
- write_lock(&cnic_dev_lock);
- list_del_init(&dev->list);
- write_unlock(&cnic_dev_lock);
-
- cnic_put(dev);
- cnic_free_dev(dev);
- goto done;
- }
- cnic_put(dev);
- } else {
- struct net_device *realdev;
- u16 vid;
-
- vid = cnic_get_vlan(netdev, &realdev);
- if (realdev) {
- dev = cnic_from_netdev(realdev);
- if (dev) {
- vid |= VLAN_TAG_PRESENT;
- cnic_rcv_netevent(dev->cnic_priv, event, vid);
- cnic_put(dev);
- }
- }
- }
-done:
- return NOTIFY_DONE;
-}
-
-static struct notifier_block cnic_netdev_notifier = {
- .notifier_call = cnic_netdev_event
-};
-
-static void cnic_release(void)
-{
- struct cnic_dev *dev;
- struct cnic_uio_dev *udev;
-
- while (!list_empty(&cnic_dev_list)) {
- dev = list_entry(cnic_dev_list.next, struct cnic_dev, list);
- if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
- cnic_ulp_stop(dev);
- cnic_stop_hw(dev);
- }
-
- cnic_ulp_exit(dev);
- cnic_unregister_netdev(dev);
- list_del_init(&dev->list);
- cnic_free_dev(dev);
- }
- while (!list_empty(&cnic_udev_list)) {
- udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
- list);
- cnic_free_uio(udev);
- }
-}
-
-static int __init cnic_init(void)
-{
- int rc = 0;
-
- pr_info("%s", version);
-
- rc = register_netdevice_notifier(&cnic_netdev_notifier);
- if (rc) {
- cnic_release();
- return rc;
- }
-
- cnic_wq = create_singlethread_workqueue("cnic_wq");
- if (!cnic_wq) {
- cnic_release();
- unregister_netdevice_notifier(&cnic_netdev_notifier);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-static void __exit cnic_exit(void)
-{
- unregister_netdevice_notifier(&cnic_netdev_notifier);
- cnic_release();
- destroy_workqueue(cnic_wq);
-}
-
-module_init(cnic_init);
-module_exit(cnic_exit);