drivers/net/cnic.c

   1 /* cnic.c: Broadcom CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2010 Broadcom Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation.
   8  *
   9  * Original skeleton written by: John(Zongxi) Chen (zongxi@broadcom.com)
  10  * Modified and maintained by: Michael Chan <mchan@broadcom.com>
  11  */
  12
  13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  14
  15 #include <linux/module.h>
  16
  17 #include <linux/kernel.h>
  18 #include <linux/errno.h>
  19 #include <linux/list.h>
  20 #include <linux/slab.h>
  21 #include <linux/pci.h>
  22 #include <linux/init.h>
  23 #include <linux/netdevice.h>
  24 #include <linux/uio_driver.h>
  25 #include <linux/in.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/delay.h>
  28 #include <linux/ethtool.h>
  29 #include <linux/if_vlan.h>
  30 #include <linux/prefetch.h>
  31 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  32 #define BCM_VLAN 1
  33 #endif
  34 #include <net/ip.h>
  35 #include <net/tcp.h>
  36 #include <net/route.h>
  37 #include <net/ipv6.h>
  38 #include <net/ip6_route.h>
  39 #include <net/ip6_checksum.h>
  40 #include <scsi/iscsi_if.h>
  41
  42 #include "cnic_if.h"
  43 #include "bnx2.h"
  44 #include "bnx2x/bnx2x_reg.h"
  45 #include "bnx2x/bnx2x_fw_defs.h"
  46 #include "bnx2x/bnx2x_hsi.h"
  47 #include "../scsi/bnx2i/57xx_iscsi_constants.h"
  48 #include "../scsi/bnx2i/57xx_iscsi_hsi.h"
  49 #include "cnic.h"
  50 #include "cnic_defs.h"
  51
  52 #define DRV_MODULE_NAME         "cnic"
  53
  54 static char version[] __devinitdata =
  55         "Broadcom NetXtreme II CNIC Driver " DRV_MODULE_NAME " v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
  56
  57 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
  58               "Chen (zongxi@broadcom.com");
  59 MODULE_DESCRIPTION("Broadcom NetXtreme II CNIC Driver");
  60 MODULE_LICENSE("GPL");
  61 MODULE_VERSION(CNIC_MODULE_VERSION);
  62
  63 /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
  64 static LIST_HEAD(cnic_dev_list);
  65 static LIST_HEAD(cnic_udev_list);
  66 static DEFINE_RWLOCK(cnic_dev_lock);
  67 static DEFINE_MUTEX(cnic_lock);
  68
  69 static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
  70
  71 /* helper function, assuming cnic_lock is held */
  72 static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
  73 {
  74         return rcu_dereference_protected(cnic_ulp_tbl[type],
  75                                          lockdep_is_held(&cnic_lock));
  76 }
  77
  78 static int cnic_service_bnx2(void *, void *);
  79 static int cnic_service_bnx2x(void *, void *);
  80 static int cnic_ctl(void *, struct cnic_ctl_info *);
  81
  82 static struct cnic_ops cnic_bnx2_ops = {
  83         .cnic_owner     = THIS_MODULE,
  84         .cnic_handler   = cnic_service_bnx2,
  85         .cnic_ctl       = cnic_ctl,
  86 };
  87
  88 static struct cnic_ops cnic_bnx2x_ops = {
  89         .cnic_owner     = THIS_MODULE,
  90         .cnic_handler   = cnic_service_bnx2x,
  91         .cnic_ctl       = cnic_ctl,
  92 };
  93
  94 static struct workqueue_struct *cnic_wq;
  95
  96 static void cnic_shutdown_rings(struct cnic_dev *);
  97 static void cnic_init_rings(struct cnic_dev *);
  98 static int cnic_cm_set_pg(struct cnic_sock *);
  99
 100 static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 101 {
 102         struct cnic_uio_dev *udev = uinfo->priv;
 103         struct cnic_dev *dev;
 104
 105         if (!capable(CAP_NET_ADMIN))
 106                 return -EPERM;
 107
 108         if (udev->uio_dev != -1)
 109                 return -EBUSY;
 110
 111         rtnl_lock();
 112         dev = udev->dev;
 113
 114         if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
 115                 rtnl_unlock();
 116                 return -ENODEV;
 117         }
 118
 119         udev->uio_dev = iminor(inode);
 120
 121         cnic_shutdown_rings(dev);
 122         cnic_init_rings(dev);
 123         rtnl_unlock();
 124
 125         return 0;
 126 }
 127
 128 static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 129 {
 130         struct cnic_uio_dev *udev = uinfo->priv;
 131
 132         udev->uio_dev = -1;
 133         return 0;
 134 }
 135
 136 static inline void cnic_hold(struct cnic_dev *dev)
 137 {
 138         atomic_inc(&dev->ref_count);
 139 }
 140
 141 static inline void cnic_put(struct cnic_dev *dev)
 142 {
 143         atomic_dec(&dev->ref_count);
 144 }
 145
 146 static inline void csk_hold(struct cnic_sock *csk)
 147 {
 148         atomic_inc(&csk->ref_count);
 149 }
 150
 151 static inline void csk_put(struct cnic_sock *csk)
 152 {
 153         atomic_dec(&csk->ref_count);
 154 }
 155
 156 static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
 157 {
 158         struct cnic_dev *cdev;
 159
 160         read_lock(&cnic_dev_lock);
 161         list_for_each_entry(cdev, &cnic_dev_list, list) {
 162                 if (netdev == cdev->netdev) {
 163                         cnic_hold(cdev);
 164                         read_unlock(&cnic_dev_lock);
 165                         return cdev;
 166                 }
 167         }
 168         read_unlock(&cnic_dev_lock);
 169         return NULL;
 170 }
 171
 172 static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
 173 {
 174         atomic_inc(&ulp_ops->ref_count);
 175 }
 176
 177 static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
 178 {
 179         atomic_dec(&ulp_ops->ref_count);
 180 }
 181
 182 static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
 183 {
 184         struct cnic_local *cp = dev->cnic_priv;
 185         struct cnic_eth_dev *ethdev = cp->ethdev;
 186         struct drv_ctl_info info;
 187         struct drv_ctl_io *io = &info.data.io;
 188
 189         info.cmd = DRV_CTL_CTX_WR_CMD;
 190         io->cid_addr = cid_addr;
 191         io->offset = off;
 192         io->data = val;
 193         ethdev->drv_ctl(dev->netdev, &info);
 194 }
 195
 196 static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
 197 {
 198         struct cnic_local *cp = dev->cnic_priv;
 199         struct cnic_eth_dev *ethdev = cp->ethdev;
 200         struct drv_ctl_info info;
 201         struct drv_ctl_io *io = &info.data.io;
 202
 203         info.cmd = DRV_CTL_CTXTBL_WR_CMD;
 204         io->offset = off;
 205         io->dma_addr = addr;
 206         ethdev->drv_ctl(dev->netdev, &info);
 207 }
 208
 209 static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
 210 {
 211         struct cnic_local *cp = dev->cnic_priv;
 212         struct cnic_eth_dev *ethdev = cp->ethdev;
 213         struct drv_ctl_info info;
 214         struct drv_ctl_l2_ring *ring = &info.data.ring;
 215
 216         if (start)
 217                 info.cmd = DRV_CTL_START_L2_CMD;
 218         else
 219                 info.cmd = DRV_CTL_STOP_L2_CMD;
 220
 221         ring->cid = cid;
 222         ring->client_id = cl_id;
 223         ethdev->drv_ctl(dev->netdev, &info);
 224 }
 225
 226 static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
 227 {
 228         struct cnic_local *cp = dev->cnic_priv;
 229         struct cnic_eth_dev *ethdev = cp->ethdev;
 230         struct drv_ctl_info info;
 231         struct drv_ctl_io *io = &info.data.io;
 232
 233         info.cmd = DRV_CTL_IO_WR_CMD;
 234         io->offset = off;
 235         io->data = val;
 236         ethdev->drv_ctl(dev->netdev, &info);
 237 }
 238
 239 static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
 240 {
 241         struct cnic_local *cp = dev->cnic_priv;
 242         struct cnic_eth_dev *ethdev = cp->ethdev;
 243         struct drv_ctl_info info;
 244         struct drv_ctl_io *io = &info.data.io;
 245
 246         info.cmd = DRV_CTL_IO_RD_CMD;
 247         io->offset = off;
 248         ethdev->drv_ctl(dev->netdev, &info);
 249         return io->data;
 250 }
 251
 252 static int cnic_in_use(struct cnic_sock *csk)
 253 {
 254         return test_bit(SK_F_INUSE, &csk->flags);
 255 }
 256
 257 static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
 258 {
 259         struct cnic_local *cp = dev->cnic_priv;
 260         struct cnic_eth_dev *ethdev = cp->ethdev;
 261         struct drv_ctl_info info;
 262
 263         info.cmd = cmd;
 264         info.data.credit.credit_count = count;
 265         ethdev->drv_ctl(dev->netdev, &info);
 266 }
 267
 268 static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
 269 {
 270         u32 i;
 271
 272         for (i = 0; i < cp->max_cid_space; i++) {
 273                 if (cp->ctx_tbl[i].cid == cid) {
 274                         *l5_cid = i;
 275                         return 0;
 276                 }
 277         }
 278         return -EINVAL;
 279 }
 280
 281 static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
 282                            struct cnic_sock *csk)
 283 {
 284         struct iscsi_path path_req;
 285         char *buf = NULL;
 286         u16 len = 0;
 287         u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 288         struct cnic_ulp_ops *ulp_ops;
 289         struct cnic_uio_dev *udev = cp->udev;
 290         int rc = 0, retry = 0;
 291
 292         if (!udev || udev->uio_dev == -1)
 293                 return -ENODEV;
 294
 295         if (csk) {
 296                 len = sizeof(path_req);
 297                 buf = (char *) &path_req;
 298                 memset(&path_req, 0, len);
 299
 300                 msg_type = ISCSI_KEVENT_PATH_REQ;
 301                 path_req.handle = (u64) csk->l5_cid;
 302                 if (test_bit(SK_F_IPV6, &csk->flags)) {
 303                         memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
 304                                sizeof(struct in6_addr));
 305                         path_req.ip_addr_len = 16;
 306                 } else {
 307                         memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
 308                                sizeof(struct in_addr));
 309                         path_req.ip_addr_len = 4;
 310                 }
 311                 path_req.vlan_id = csk->vlan_id;
 312                 path_req.pmtu = csk->mtu;
 313         }
 314
 315         while (retry < 3) {
 316                 rc = 0;
 317                 rcu_read_lock();
 318                 ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
 319                 if (ulp_ops)
 320                         rc = ulp_ops->iscsi_nl_send_msg(
 321                                 cp->ulp_handle[CNIC_ULP_ISCSI],
 322                                 msg_type, buf, len);
 323                 rcu_read_unlock();
 324                 if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
 325                         break;
 326
 327                 msleep(100);
 328                 retry++;
 329         }
 330         return 0;
 331 }
 332
 333 static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
 334
 335 static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 336                                   char *buf, u16 len)
 337 {
 338         int rc = -EINVAL;
 339
 340         switch (msg_type) {
 341         case ISCSI_UEVENT_PATH_UPDATE: {
 342                 struct cnic_local *cp;
 343                 u32 l5_cid;
 344                 struct cnic_sock *csk;
 345                 struct iscsi_path *path_resp;
 346
 347                 if (len < sizeof(*path_resp))
 348                         break;
 349
 350                 path_resp = (struct iscsi_path *) buf;
 351                 cp = dev->cnic_priv;
 352                 l5_cid = (u32) path_resp->handle;
 353                 if (l5_cid >= MAX_CM_SK_TBL_SZ)
 354                         break;
 355
 356                 rcu_read_lock();
 357                 if (!rcu_dereference(cp->ulp_ops[CNIC_ULP_L4])) {
 358                         rc = -ENODEV;
 359                         rcu_read_unlock();
 360                         break;
 361                 }
 362                 csk = &cp->csk_tbl[l5_cid];
 363                 csk_hold(csk);
 364                 if (cnic_in_use(csk) &&
 365                     test_bit(SK_F_CONNECT_START, &csk->flags)) {
 366
 367                         memcpy(csk->ha, path_resp->mac_addr, 6);
 368                         if (test_bit(SK_F_IPV6, &csk->flags))
 369                                 memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 370                                        sizeof(struct in6_addr));
 371                         else
 372                                 memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
 373                                        sizeof(struct in_addr));
 374
 375                         if (is_valid_ether_addr(csk->ha)) {
 376                                 cnic_cm_set_pg(csk);
 377                         } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
 378                                 !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 379
 380                                 cnic_cm_upcall(cp, csk,
 381                                         L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
 382                                 clear_bit(SK_F_CONNECT_START, &csk->flags);
 383                         }
 384                 }
 385                 csk_put(csk);
 386                 rcu_read_unlock();
 387                 rc = 0;
 388         }
 389         }
 390
 391         return rc;
 392 }
 393
 394 static int cnic_offld_prep(struct cnic_sock *csk)
 395 {
 396         if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 397                 return 0;
 398
 399         if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
 400                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 401                 return 0;
 402         }
 403
 404         return 1;
 405 }
 406
 407 static int cnic_close_prep(struct cnic_sock *csk)
 408 {
 409         clear_bit(SK_F_CONNECT_START, &csk->flags);
 410         smp_mb__after_clear_bit();
 411
 412         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 413                 while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 414                         msleep(1);
 415
 416                 return 1;
 417         }
 418         return 0;
 419 }
 420
 421 static int cnic_abort_prep(struct cnic_sock *csk)
 422 {
 423         clear_bit(SK_F_CONNECT_START, &csk->flags);
 424         smp_mb__after_clear_bit();
 425
 426         while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 427                 msleep(1);
 428
 429         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 430                 csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
 431                 return 1;
 432         }
 433
 434         return 0;
 435 }
 436
 437 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 438 {
 439         struct cnic_dev *dev;
 440
 441         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 442                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 443                 return -EINVAL;
 444         }
 445         mutex_lock(&cnic_lock);
 446         if (cnic_ulp_tbl_prot(ulp_type)) {
 447                 pr_err("%s: Type %d has already been registered\n",
 448                        __func__, ulp_type);
 449                 mutex_unlock(&cnic_lock);
 450                 return -EBUSY;
 451         }
 452
 453         read_lock(&cnic_dev_lock);
 454         list_for_each_entry(dev, &cnic_dev_list, list) {
 455                 struct cnic_local *cp = dev->cnic_priv;
 456
 457                 clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
 458         }
 459         read_unlock(&cnic_dev_lock);
 460
 461         atomic_set(&ulp_ops->ref_count, 0);
 462         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
 463         mutex_unlock(&cnic_lock);
 464
 465         /* Prevent race conditions with netdev_event */
 466         rtnl_lock();
 467         list_for_each_entry(dev, &cnic_dev_list, list) {
 468                 struct cnic_local *cp = dev->cnic_priv;
 469
 470                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 471                         ulp_ops->cnic_init(dev);
 472         }
 473         rtnl_unlock();
 474
 475         return 0;
 476 }
 477
 478 int cnic_unregister_driver(int ulp_type)
 479 {
 480         struct cnic_dev *dev;
 481         struct cnic_ulp_ops *ulp_ops;
 482         int i = 0;
 483
 484         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 485                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 486                 return -EINVAL;
 487         }
 488         mutex_lock(&cnic_lock);
 489         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 490         if (!ulp_ops) {
 491                 pr_err("%s: Type %d has not been registered\n",
 492                        __func__, ulp_type);
 493                 goto out_unlock;
 494         }
 495         read_lock(&cnic_dev_lock);
 496         list_for_each_entry(dev, &cnic_dev_list, list) {
 497                 struct cnic_local *cp = dev->cnic_priv;
 498
 499                 if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 500                         pr_err("%s: Type %d still has devices registered\n",
 501                                __func__, ulp_type);
 502                         read_unlock(&cnic_dev_lock);
 503                         goto out_unlock;
 504                 }
 505         }
 506         read_unlock(&cnic_dev_lock);
 507
 508         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], NULL);
 509
 510         mutex_unlock(&cnic_lock);
 511         synchronize_rcu();
 512         while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
 513                 msleep(100);
 514                 i++;
 515         }
 516
 517         if (atomic_read(&ulp_ops->ref_count) != 0)
 518                 netdev_warn(dev->netdev, "Failed waiting for ref count to go to zero\n");
 519         return 0;
 520
 521 out_unlock:
 522         mutex_unlock(&cnic_lock);
 523         return -EINVAL;
 524 }
 525
 526 static int cnic_start_hw(struct cnic_dev *);
 527 static void cnic_stop_hw(struct cnic_dev *);
 528
 529 static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
 530                                 void *ulp_ctx)
 531 {
 532         struct cnic_local *cp = dev->cnic_priv;
 533         struct cnic_ulp_ops *ulp_ops;
 534
 535         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 536                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 537                 return -EINVAL;
 538         }
 539         mutex_lock(&cnic_lock);
 540         if (cnic_ulp_tbl_prot(ulp_type) == NULL) {
 541                 pr_err("%s: Driver with type %d has not been registered\n",
 542                        __func__, ulp_type);
 543                 mutex_unlock(&cnic_lock);
 544                 return -EAGAIN;
 545         }
 546         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 547                 pr_err("%s: Type %d has already been registered to this device\n",
 548                        __func__, ulp_type);
 549                 mutex_unlock(&cnic_lock);
 550                 return -EBUSY;
 551         }
 552
 553         clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
 554         cp->ulp_handle[ulp_type] = ulp_ctx;
 555         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 556         rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
 557         cnic_hold(dev);
 558
 559         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
 560                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
 561                         ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
 562
 563         mutex_unlock(&cnic_lock);
 564
 565         return 0;
 566
 567 }
 568 EXPORT_SYMBOL(cnic_register_driver);
 569
 570 static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
 571 {
 572         struct cnic_local *cp = dev->cnic_priv;
 573         int i = 0;
 574
 575         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 576                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 577                 return -EINVAL;
 578         }
 579         mutex_lock(&cnic_lock);
 580         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 581                 rcu_assign_pointer(cp->ulp_ops[ulp_type], NULL);
 582                 cnic_put(dev);
 583         } else {
 584                 pr_err("%s: device not registered to this ulp type %d\n",
 585                        __func__, ulp_type);
 586                 mutex_unlock(&cnic_lock);
 587                 return -EINVAL;
 588         }
 589         mutex_unlock(&cnic_lock);
 590
 591         if (ulp_type == CNIC_ULP_ISCSI)
 592                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 593
 594         synchronize_rcu();
 595
 596         while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
 597                i < 20) {
 598                 msleep(100);
 599                 i++;
 600         }
 601         if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
 602                 netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
 603
 604         return 0;
 605 }
 606 EXPORT_SYMBOL(cnic_unregister_driver);
 607
 608 static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id)
 609 {
 610         id_tbl->start = start_id;
 611         id_tbl->max = size;
 612         id_tbl->next = 0;
 613         spin_lock_init(&id_tbl->lock);
 614         id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL);
 615         if (!id_tbl->table)
 616                 return -ENOMEM;
 617
 618         return 0;
 619 }
 620
 621 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 622 {
 623         kfree(id_tbl->table);
 624         id_tbl->table = NULL;
 625 }
 626
 627 static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
 628 {
 629         int ret = -1;
 630
 631         id -= id_tbl->start;
 632         if (id >= id_tbl->max)
 633                 return ret;
 634
 635         spin_lock(&id_tbl->lock);
 636         if (!test_bit(id, id_tbl->table)) {
 637                 set_bit(id, id_tbl->table);
 638                 ret = 0;
 639         }
 640         spin_unlock(&id_tbl->lock);
 641         return ret;
 642 }
 643
 644 /* Returns -1 if not successful */
 645 static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
 646 {
 647         u32 id;
 648
 649         spin_lock(&id_tbl->lock);
 650         id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
 651         if (id >= id_tbl->max) {
 652                 id = -1;
 653                 if (id_tbl->next != 0) {
 654                         id = find_first_zero_bit(id_tbl->table, id_tbl->next);
 655                         if (id >= id_tbl->next)
 656                                 id = -1;
 657                 }
 658         }
 659
 660         if (id < id_tbl->max) {
 661                 set_bit(id, id_tbl->table);
 662                 id_tbl->next = (id + 1) & (id_tbl->max - 1);
 663                 id += id_tbl->start;
 664         }
 665
 666         spin_unlock(&id_tbl->lock);
 667
 668         return id;
 669 }
 670
 671 static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
 672 {
 673         if (id == -1)
 674                 return;
 675
 676         id -= id_tbl->start;
 677         if (id >= id_tbl->max)
 678                 return;
 679
 680         clear_bit(id, id_tbl->table);
 681 }
 682
 683 static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
 684 {
 685         int i;
 686
 687         if (!dma->pg_arr)
 688                 return;
 689
 690         for (i = 0; i < dma->num_pages; i++) {
 691                 if (dma->pg_arr[i]) {
 692                         dma_free_coherent(&dev->pcidev->dev, BCM_PAGE_SIZE,
 693                                           dma->pg_arr[i], dma->pg_map_arr[i]);
 694                         dma->pg_arr[i] = NULL;
 695                 }
 696         }
 697         if (dma->pgtbl) {
 698                 dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 699                                   dma->pgtbl, dma->pgtbl_map);
 700                 dma->pgtbl = NULL;
 701         }
 702         kfree(dma->pg_arr);
 703         dma->pg_arr = NULL;
 704         dma->num_pages = 0;
 705 }
 706
 707 static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
 708 {
 709         int i;
 710         __le32 *page_table = (__le32 *) dma->pgtbl;
 711
 712         for (i = 0; i < dma->num_pages; i++) {
 713                 /* Each entry needs to be in big endian format. */
 714                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 715                 page_table++;
 716                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 717                 page_table++;
 718         }
 719 }
 720
 721 static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
 722 {
 723         int i;
 724         __le32 *page_table = (__le32 *) dma->pgtbl;
 725
 726         for (i = 0; i < dma->num_pages; i++) {
 727                 /* Each entry needs to be in little endian format. */
 728                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 729                 page_table++;
 730                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 731                 page_table++;
 732         }
 733 }
 734
 735 static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
 736                           int pages, int use_pg_tbl)
 737 {
 738         int i, size;
 739         struct cnic_local *cp = dev->cnic_priv;
 740
 741         size = pages * (sizeof(void *) + sizeof(dma_addr_t));
 742         dma->pg_arr = kzalloc(size, GFP_ATOMIC);
 743         if (dma->pg_arr == NULL)
 744                 return -ENOMEM;
 745
 746         dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
 747         dma->num_pages = pages;
 748
 749         for (i = 0; i < pages; i++) {
 750                 dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
 751                                                     BCM_PAGE_SIZE,
 752                                                     &dma->pg_map_arr[i],
 753                                                     GFP_ATOMIC);
 754                 if (dma->pg_arr[i] == NULL)
 755                         goto error;
 756         }
 757         if (!use_pg_tbl)
 758                 return 0;
 759
 760         dma->pgtbl_size = ((pages * 8) + BCM_PAGE_SIZE - 1) &
 761                           ~(BCM_PAGE_SIZE - 1);
 762         dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 763                                         &dma->pgtbl_map, GFP_ATOMIC);
 764         if (dma->pgtbl == NULL)
 765                 goto error;
 766
 767         cp->setup_pgtbl(dev, dma);
 768
 769         return 0;
 770
 771 error:
 772         cnic_free_dma(dev, dma);
 773         return -ENOMEM;
 774 }
 775
 776 static void cnic_free_context(struct cnic_dev *dev)
 777 {
 778         struct cnic_local *cp = dev->cnic_priv;
 779         int i;
 780
 781         for (i = 0; i < cp->ctx_blks; i++) {
 782                 if (cp->ctx_arr[i].ctx) {
 783                         dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
 784                                           cp->ctx_arr[i].ctx,
 785                                           cp->ctx_arr[i].mapping);
 786                         cp->ctx_arr[i].ctx = NULL;
 787                 }
 788         }
 789 }
 790
 791 static void __cnic_free_uio(struct cnic_uio_dev *udev)
 792 {
 793         uio_unregister_device(&udev->cnic_uinfo);
 794
 795         if (udev->l2_buf) {
 796                 dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 797                                   udev->l2_buf, udev->l2_buf_map);
 798                 udev->l2_buf = NULL;
 799         }
 800
 801         if (udev->l2_ring) {
 802                 dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 803                                   udev->l2_ring, udev->l2_ring_map);
 804                 udev->l2_ring = NULL;
 805         }
 806
 807         pci_dev_put(udev->pdev);
 808         kfree(udev);
 809 }
 810
 811 static void cnic_free_uio(struct cnic_uio_dev *udev)
 812 {
 813         if (!udev)
 814                 return;
 815
 816         write_lock(&cnic_dev_lock);
 817         list_del_init(&udev->list);
 818         write_unlock(&cnic_dev_lock);
 819         __cnic_free_uio(udev);
 820 }
 821
 822 static void cnic_free_resc(struct cnic_dev *dev)
 823 {
 824         struct cnic_local *cp = dev->cnic_priv;
 825         struct cnic_uio_dev *udev = cp->udev;
 826
 827         if (udev) {
 828                 udev->dev = NULL;
 829                 cp->udev = NULL;
 830         }
 831
 832         cnic_free_context(dev);
 833         kfree(cp->ctx_arr);
 834         cp->ctx_arr = NULL;
 835         cp->ctx_blks = 0;
 836
 837         cnic_free_dma(dev, &cp->gbl_buf_info);
 838         cnic_free_dma(dev, &cp->conn_buf_info);
 839         cnic_free_dma(dev, &cp->kwq_info);
 840         cnic_free_dma(dev, &cp->kwq_16_data_info);
 841         cnic_free_dma(dev, &cp->kcq2.dma);
 842         cnic_free_dma(dev, &cp->kcq1.dma);
 843         kfree(cp->iscsi_tbl);
 844         cp->iscsi_tbl = NULL;
 845         kfree(cp->ctx_tbl);
 846         cp->ctx_tbl = NULL;
 847
 848         cnic_free_id_tbl(&cp->fcoe_cid_tbl);
 849         cnic_free_id_tbl(&cp->cid_tbl);
 850 }
 851
 852 static int cnic_alloc_context(struct cnic_dev *dev)
 853 {
 854         struct cnic_local *cp = dev->cnic_priv;
 855
 856         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
 857                 int i, k, arr_size;
 858
 859                 cp->ctx_blk_size = BCM_PAGE_SIZE;
 860                 cp->cids_per_blk = BCM_PAGE_SIZE / 128;
 861                 arr_size = BNX2_MAX_CID / cp->cids_per_blk *
 862                            sizeof(struct cnic_ctx);
 863                 cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
 864                 if (cp->ctx_arr == NULL)
 865                         return -ENOMEM;
 866
 867                 k = 0;
 868                 for (i = 0; i < 2; i++) {
 869                         u32 j, reg, off, lo, hi;
 870
 871                         if (i == 0)
 872                                 off = BNX2_PG_CTX_MAP;
 873                         else
 874                                 off = BNX2_ISCSI_CTX_MAP;
 875
 876                         reg = cnic_reg_rd_ind(dev, off);
 877                         lo = reg >> 16;
 878                         hi = reg & 0xffff;
 879                         for (j = lo; j < hi; j += cp->cids_per_blk, k++)
 880                                 cp->ctx_arr[k].cid = j;
 881                 }
 882
 883                 cp->ctx_blks = k;
 884                 if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
 885                         cp->ctx_blks = 0;
 886                         return -ENOMEM;
 887                 }
 888
 889                 for (i = 0; i < cp->ctx_blks; i++) {
 890                         cp->ctx_arr[i].ctx =
 891                                 dma_alloc_coherent(&dev->pcidev->dev,
 892                                                    BCM_PAGE_SIZE,
 893                                                    &cp->ctx_arr[i].mapping,
 894                                                    GFP_KERNEL);
 895                         if (cp->ctx_arr[i].ctx == NULL)
 896                                 return -ENOMEM;
 897                 }
 898         }
 899         return 0;
 900 }
 901
 902 static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info)
 903 {
 904         int err, i, is_bnx2 = 0;
 905         struct kcqe **kcq;
 906
 907         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags))
 908                 is_bnx2 = 1;
 909
 910         err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, is_bnx2);
 911         if (err)
 912                 return err;
 913
 914         kcq = (struct kcqe **) info->dma.pg_arr;
 915         info->kcq = kcq;
 916
 917         if (is_bnx2)
 918                 return 0;
 919
 920         for (i = 0; i < KCQ_PAGE_CNT; i++) {
 921                 struct bnx2x_bd_chain_next *next =
 922                         (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
 923                 int j = i + 1;
 924
 925                 if (j >= KCQ_PAGE_CNT)
 926                         j = 0;
 927                 next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
 928                 next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
 929         }
 930         return 0;
 931 }
 932
 933 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 934 {
 935         struct cnic_local *cp = dev->cnic_priv;
 936         struct cnic_uio_dev *udev;
 937
 938         read_lock(&cnic_dev_lock);
 939         list_for_each_entry(udev, &cnic_udev_list, list) {
 940                 if (udev->pdev == dev->pcidev) {
 941                         udev->dev = dev;
 942                         cp->udev = udev;
 943                         read_unlock(&cnic_dev_lock);
 944                         return 0;
 945                 }
 946         }
 947         read_unlock(&cnic_dev_lock);
 948
 949         udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
 950         if (!udev)
 951                 return -ENOMEM;
 952
 953         udev->uio_dev = -1;
 954
 955         udev->dev = dev;
 956         udev->pdev = dev->pcidev;
 957         udev->l2_ring_size = pages * BCM_PAGE_SIZE;
 958         udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
 959                                            &udev->l2_ring_map,
 960                                            GFP_KERNEL | __GFP_COMP);
 961         if (!udev->l2_ring)
 962                 goto err_udev;
 963
 964         udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
 965         udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
 966         udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
 967                                           &udev->l2_buf_map,
 968                                           GFP_KERNEL | __GFP_COMP);
 969         if (!udev->l2_buf)
 970                 goto err_dma;
 971
 972         write_lock(&cnic_dev_lock);
 973         list_add(&udev->list, &cnic_udev_list);
 974         write_unlock(&cnic_dev_lock);
 975
 976         pci_dev_get(udev->pdev);
 977
 978         cp->udev = udev;
 979
 980         return 0;
 981  err_dma:
 982         dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 983                           udev->l2_ring, udev->l2_ring_map);
 984  err_udev:
 985         kfree(udev);
 986         return -ENOMEM;
 987 }
 988
 989 static int cnic_init_uio(struct cnic_dev *dev)
 990 {
 991         struct cnic_local *cp = dev->cnic_priv;
 992         struct cnic_uio_dev *udev = cp->udev;
 993         struct uio_info *uinfo;
 994         int ret = 0;
 995
 996         if (!udev)
 997                 return -ENOMEM;
 998
 999         uinfo = &udev->cnic_uinfo;
1000
1001         uinfo->mem[0].addr = dev->netdev->base_addr;
1002         uinfo->mem[0].internal_addr = dev->regview;
1003         uinfo->mem[0].size = dev->netdev->mem_end - dev->netdev->mem_start;
1004         uinfo->mem[0].memtype = UIO_MEM_PHYS;
1005
1006         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
1007                 uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
1008                                         PAGE_MASK;
1009                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
1010                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
1011                 else
1012                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
1013
1014                 uinfo->name = "bnx2_cnic";
1015         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1016                 uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
1017                         PAGE_MASK;
1018                 uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk);
1019
1020                 uinfo->name = "bnx2x_cnic";
1021         }
1022
1023         uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
1024
1025         uinfo->mem[2].addr = (unsigned long) udev->l2_ring;
1026         uinfo->mem[2].size = udev->l2_ring_size;
1027         uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
1028
1029         uinfo->mem[3].addr = (unsigned long) udev->l2_buf;
1030         uinfo->mem[3].size = udev->l2_buf_size;
1031         uinfo->mem[3].memtype = UIO_MEM_LOGICAL;
1032
1033         uinfo->version = CNIC_MODULE_VERSION;
1034         uinfo->irq = UIO_IRQ_CUSTOM;
1035
1036         uinfo->open = cnic_uio_open;
1037         uinfo->release = cnic_uio_close;
1038
1039         if (udev->uio_dev == -1) {
1040                 if (!uinfo->priv) {
1041                         uinfo->priv = udev;
1042
1043                         ret = uio_register_device(&udev->pdev->dev, uinfo);
1044                 }
1045         } else {
1046                 cnic_init_rings(dev);
1047         }
1048
1049         return ret;
1050 }
1051
1052 static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
1053 {
1054         struct cnic_local *cp = dev->cnic_priv;
1055         int ret;
1056
1057         ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
1058         if (ret)
1059                 goto error;
1060         cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
1061
1062         ret = cnic_alloc_kcq(dev, &cp->kcq1);
1063         if (ret)
1064                 goto error;
1065
1066         ret = cnic_alloc_context(dev);
1067         if (ret)
1068                 goto error;
1069
1070         ret = cnic_alloc_uio_rings(dev, 2);
1071         if (ret)
1072                 goto error;
1073
1074         ret = cnic_init_uio(dev);
1075         if (ret)
1076                 goto error;
1077
1078         return 0;
1079
1080 error:
1081         cnic_free_resc(dev);
1082         return ret;
1083 }
1084
1085 static int cnic_alloc_bnx2x_context(struct cnic_dev *dev)
1086 {
1087         struct cnic_local *cp = dev->cnic_priv;
1088         int ctx_blk_size = cp->ethdev->ctx_blk_size;
1089         int total_mem, blks, i;
1090
1091         total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
1092         blks = total_mem / ctx_blk_size;
1093         if (total_mem % ctx_blk_size)
1094                 blks++;
1095
1096         if (blks > cp->ethdev->ctx_tbl_len)
1097                 return -ENOMEM;
1098
1099         cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL);
1100         if (cp->ctx_arr == NULL)
1101                 return -ENOMEM;
1102
1103         cp->ctx_blks = blks;
1104         cp->ctx_blk_size = ctx_blk_size;
1105         if (!BNX2X_CHIP_IS_57710(cp->chip_id))
1106                 cp->ctx_align = 0;
1107         else
1108                 cp->ctx_align = ctx_blk_size;
1109
1110         cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
1111
1112         for (i = 0; i < blks; i++) {
1113                 cp->ctx_arr[i].ctx =
1114                         dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
1115                                            &cp->ctx_arr[i].mapping,
1116                                            GFP_KERNEL);
1117                 if (cp->ctx_arr[i].ctx == NULL)
1118                         return -ENOMEM;
1119
1120                 if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
1121                         if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
1122                                 cnic_free_context(dev);
1123                                 cp->ctx_blk_size += cp->ctx_align;
1124                                 i = -1;
1125                                 continue;
1126                         }
1127                 }
1128         }
1129         return 0;
1130 }
1131
1132 static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
1133 {
1134         struct cnic_local *cp = dev->cnic_priv;
1135         struct cnic_eth_dev *ethdev = cp->ethdev;
1136         u32 start_cid = ethdev->starting_cid;
1137         int i, j, n, ret, pages;
1138         struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
1139
1140         cp->iro_arr = ethdev->iro_arr;
1141
1142         cp->max_cid_space = MAX_ISCSI_TBL_SZ + BNX2X_FCOE_NUM_CONNECTIONS;
1143         cp->iscsi_start_cid = start_cid;
1144         cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ;
1145
1146         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
1147                 cp->max_cid_space += BNX2X_FCOE_NUM_CONNECTIONS;
1148                 cp->fcoe_init_cid = ethdev->fcoe_init_cid;
1149                 if (!cp->fcoe_init_cid)
1150                         cp->fcoe_init_cid = 0x10;
1151         }
1152
1153         if (start_cid < BNX2X_ISCSI_START_CID) {
1154                 u32 delta = BNX2X_ISCSI_START_CID - start_cid;
1155
1156                 cp->iscsi_start_cid = BNX2X_ISCSI_START_CID;
1157                 cp->fcoe_start_cid += delta;
1158                 cp->max_cid_space += delta;
1159         }
1160
1161         cp->iscsi_tbl = kzalloc(sizeof(struct cnic_iscsi) * MAX_ISCSI_TBL_SZ,
1162                                 GFP_KERNEL);
1163         if (!cp->iscsi_tbl)
1164                 goto error;
1165
1166         cp->ctx_tbl = kzalloc(sizeof(struct cnic_context) *
1167                                 cp->max_cid_space, GFP_KERNEL);
1168         if (!cp->ctx_tbl)
1169                 goto error;
1170
1171         for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) {
1172                 cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i];
1173                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI;
1174         }
1175
1176         for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++)
1177                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE;
1178
1179         pages = PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
1180                 PAGE_SIZE;
1181
1182         ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
1183         if (ret)
1184                 return -ENOMEM;
1185
1186         n = PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
1187         for (i = 0, j = 0; i < cp->max_cid_space; i++) {
1188                 long off = CNIC_KWQ16_DATA_SIZE * (i % n);
1189
1190                 cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off;
1191                 cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] +
1192                                                    off;
1193
1194                 if ((i % n) == (n - 1))
1195                         j++;
1196         }
1197
1198         ret = cnic_alloc_kcq(dev, &cp->kcq1);
1199         if (ret)
1200                 goto error;
1201
1202         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
1203                 ret = cnic_alloc_kcq(dev, &cp->kcq2);
1204                 if (ret)
1205                         goto error;
1206         }
1207
1208         pages = PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS *
1209                            BNX2X_ISCSI_CONN_BUF_SIZE) / PAGE_SIZE;
1210         ret = cnic_alloc_dma(dev, &cp->conn_buf_info, pages, 1);
1211         if (ret)
1212                 goto error;
1213
1214         pages = PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / PAGE_SIZE;
1215         ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0);
1216         if (ret)
1217                 goto error;
1218
1219         ret = cnic_alloc_bnx2x_context(dev);
1220         if (ret)
1221                 goto error;
1222
1223         cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
1224
1225         cp->l2_rx_ring_size = 15;
1226
1227         ret = cnic_alloc_uio_rings(dev, 4);
1228         if (ret)
1229                 goto error;
1230
1231         ret = cnic_init_uio(dev);
1232         if (ret)
1233                 goto error;
1234
1235         return 0;
1236
1237 error:
1238         cnic_free_resc(dev);
1239         return -ENOMEM;
1240 }
1241
1242 static inline u32 cnic_kwq_avail(struct cnic_local *cp)
1243 {
1244         return cp->max_kwq_idx -
1245                 ((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx);
1246 }
1247
1248 static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
1249                                   u32 num_wqes)
1250 {
1251         struct cnic_local *cp = dev->cnic_priv;
1252         struct kwqe *prod_qe;
1253         u16 prod, sw_prod, i;
1254
1255         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
1256                 return -EAGAIN;         /* bnx2 is down */
1257
1258         spin_lock_bh(&cp->cnic_ulp_lock);
1259         if (num_wqes > cnic_kwq_avail(cp) &&
1260             !test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) {
1261                 spin_unlock_bh(&cp->cnic_ulp_lock);
1262                 return -EAGAIN;
1263         }
1264
1265         clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
1266
1267         prod = cp->kwq_prod_idx;
1268         sw_prod = prod & MAX_KWQ_IDX;
1269         for (i = 0; i < num_wqes; i++) {
1270                 prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)];
1271                 memcpy(prod_qe, wqes[i], sizeof(struct kwqe));
1272                 prod++;
1273                 sw_prod = prod & MAX_KWQ_IDX;
1274         }
1275         cp->kwq_prod_idx = prod;
1276
1277         CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx);
1278
1279         spin_unlock_bh(&cp->cnic_ulp_lock);
1280         return 0;
1281 }
1282
1283 static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid,
1284                                    union l5cm_specific_data *l5_data)
1285 {
1286         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1287         dma_addr_t map;
1288
1289         map = ctx->kwqe_data_mapping;
1290         l5_data->phy_address.lo = (u64) map & 0xffffffff;
1291         l5_data->phy_address.hi = (u64) map >> 32;
1292         return ctx->kwqe_data;
1293 }
1294
1295 static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid,
1296                                 u32 type, union l5cm_specific_data *l5_data)
1297 {
1298         struct cnic_local *cp = dev->cnic_priv;
1299         struct l5cm_spe kwqe;
1300         struct kwqe_16 *kwq[1];
1301         u16 type_16;
1302         int ret;
1303
1304         kwqe.hdr.conn_and_cmd_data =
1305                 cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
1306                              BNX2X_HW_CID(cp, cid)));
1307
1308         type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
1309         type_16 |= (cp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
1310                    SPE_HDR_FUNCTION_ID;
1311
1312         kwqe.hdr.type = cpu_to_le16(type_16);
1313         kwqe.hdr.reserved1 = 0;
1314         kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
1315         kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
1316
1317         kwq[0] = (struct kwqe_16 *) &kwqe;
1318
1319         spin_lock_bh(&cp->cnic_ulp_lock);
1320         ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
1321         spin_unlock_bh(&cp->cnic_ulp_lock);
1322
1323         if (ret == 1)
1324                 return 0;
1325
1326         return -EBUSY;
1327 }
1328
1329 static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
1330                                    struct kcqe *cqes[], u32 num_cqes)
1331 {
1332         struct cnic_local *cp = dev->cnic_priv;
1333         struct cnic_ulp_ops *ulp_ops;
1334
1335         rcu_read_lock();
1336         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
1337         if (likely(ulp_ops)) {
1338                 ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
1339                                           cqes, num_cqes);
1340         }
1341         rcu_read_unlock();
1342 }
1343
1344 static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
1345 {
1346         struct cnic_local *cp = dev->cnic_priv;
1347         struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
1348         int hq_bds, pages;
1349         u32 pfid = cp->pfid;
1350
1351         cp->num_iscsi_tasks = req1->num_tasks_per_conn;
1352         cp->num_ccells = req1->num_ccells_per_conn;
1353         cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
1354                               cp->num_iscsi_tasks;
1355         cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
1356                         BNX2X_ISCSI_R2TQE_SIZE;
1357         cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
1358         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1359         hq_bds = pages * (PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
1360         cp->num_cqs = req1->num_cqs;
1361
1362         if (!dev->max_iscsi_conn)
1363                 return 0;
1364
1365         /* init Tstorm RAM */
1366         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1367                   req1->rq_num_wqes);
1368         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1369                   PAGE_SIZE);
1370         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1371                  TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1372         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1373                   TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1374                   req1->num_tasks_per_conn);
1375
1376         /* init Ustorm RAM */
1377         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1378                   USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
1379                   req1->rq_buffer_size);
1380         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1381                   PAGE_SIZE);
1382         CNIC_WR8(dev, BAR_USTRORM_INTMEM +
1383                  USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1384         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1385                   USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1386                   req1->num_tasks_per_conn);
1387         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1388                   req1->rq_num_wqes);
1389         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1390                   req1->cq_num_wqes);
1391         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1392                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1393
1394         /* init Xstorm RAM */
1395         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1396                   PAGE_SIZE);
1397         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1398                  XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1399         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
1400                   XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1401                   req1->num_tasks_per_conn);
1402         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1403                   hq_bds);
1404         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
1405                   req1->num_tasks_per_conn);
1406         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1407                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1408
1409         /* init Cstorm RAM */
1410         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1411                   PAGE_SIZE);
1412         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
1413                  CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1414         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1415                   CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1416                   req1->num_tasks_per_conn);
1417         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1418                   req1->cq_num_wqes);
1419         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1420                   hq_bds);
1421
1422         return 0;
1423 }
1424
1425 static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
1426 {
1427         struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
1428         struct cnic_local *cp = dev->cnic_priv;
1429         u32 pfid = cp->pfid;
1430         struct iscsi_kcqe kcqe;
1431         struct kcqe *cqes[1];
1432
1433         memset(&kcqe, 0, sizeof(kcqe));
1434         if (!dev->max_iscsi_conn) {
1435                 kcqe.completion_status =
1436                         ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
1437                 goto done;
1438         }
1439
1440         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1441                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1442         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1443                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1444                 req2->error_bit_map[1]);
1445
1446         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1447                   USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1448         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1449                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1450         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1451                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1452                 req2->error_bit_map[1]);
1453
1454         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1455                   CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1456
1457         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1458
1459 done:
1460         kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
1461         cqes[0] = (struct kcqe *) &kcqe;
1462         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1463
1464         return 0;
1465 }
1466
1467 static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1468 {
1469         struct cnic_local *cp = dev->cnic_priv;
1470         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1471
1472         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
1473                 struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1474
1475                 cnic_free_dma(dev, &iscsi->hq_info);
1476                 cnic_free_dma(dev, &iscsi->r2tq_info);
1477                 cnic_free_dma(dev, &iscsi->task_array_info);
1478                 cnic_free_id(&cp->cid_tbl, ctx->cid);
1479         } else {
1480                 cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid);
1481         }
1482
1483         ctx->cid = 0;
1484 }
1485
1486 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1487 {
1488         u32 cid;
1489         int ret, pages;
1490         struct cnic_local *cp = dev->cnic_priv;
1491         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1492         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1493
1494         if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
1495                 cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
1496                 if (cid == -1) {
1497                         ret = -ENOMEM;
1498                         goto error;
1499                 }
1500                 ctx->cid = cid;
1501                 return 0;
1502         }
1503
1504         cid = cnic_alloc_new_id(&cp->cid_tbl);
1505         if (cid == -1) {
1506                 ret = -ENOMEM;
1507                 goto error;
1508         }
1509
1510         ctx->cid = cid;
1511         pages = PAGE_ALIGN(cp->task_array_size) / PAGE_SIZE;
1512
1513         ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
1514         if (ret)
1515                 goto error;
1516
1517         pages = PAGE_ALIGN(cp->r2tq_size) / PAGE_SIZE;
1518         ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
1519         if (ret)
1520                 goto error;
1521
1522         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1523         ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
1524         if (ret)
1525                 goto error;
1526
1527         return 0;
1528
1529 error:
1530         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1531         return ret;
1532 }
1533
1534 static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
1535                                 struct regpair *ctx_addr)
1536 {
1537         struct cnic_local *cp = dev->cnic_priv;
1538         struct cnic_eth_dev *ethdev = cp->ethdev;
1539         int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
1540         int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
1541         unsigned long align_off = 0;
1542         dma_addr_t ctx_map;
1543         void *ctx;
1544
1545         if (cp->ctx_align) {
1546                 unsigned long mask = cp->ctx_align - 1;
1547
1548                 if (cp->ctx_arr[blk].mapping & mask)
1549                         align_off = cp->ctx_align -
1550                                     (cp->ctx_arr[blk].mapping & mask);
1551         }
1552         ctx_map = cp->ctx_arr[blk].mapping + align_off +
1553                 (off * BNX2X_CONTEXT_MEM_SIZE);
1554         ctx = cp->ctx_arr[blk].ctx + align_off +
1555               (off * BNX2X_CONTEXT_MEM_SIZE);
1556         if (init)
1557                 memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
1558
1559         ctx_addr->lo = ctx_map & 0xffffffff;
1560         ctx_addr->hi = (u64) ctx_map >> 32;
1561         return ctx;
1562 }
1563
1564 static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
1565                                 u32 num)
1566 {
1567         struct cnic_local *cp = dev->cnic_priv;
1568         struct iscsi_kwqe_conn_offload1 *req1 =
1569                         (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1570         struct iscsi_kwqe_conn_offload2 *req2 =
1571                         (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1572         struct iscsi_kwqe_conn_offload3 *req3;
1573         struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
1574         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1575         u32 cid = ctx->cid;
1576         u32 hw_cid = BNX2X_HW_CID(cp, cid);
1577         struct iscsi_context *ictx;
1578         struct regpair context_addr;
1579         int i, j, n = 2, n_max;
1580
1581         ctx->ctx_flags = 0;
1582         if (!req2->num_additional_wqes)
1583                 return -EINVAL;
1584
1585         n_max = req2->num_additional_wqes + 2;
1586
1587         ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
1588         if (ictx == NULL)
1589                 return -ENOMEM;
1590
1591         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1592
1593         ictx->xstorm_ag_context.hq_prod = 1;
1594
1595         ictx->xstorm_st_context.iscsi.first_burst_length =
1596                 ISCSI_DEF_FIRST_BURST_LEN;
1597         ictx->xstorm_st_context.iscsi.max_send_pdu_length =
1598                 ISCSI_DEF_MAX_RECV_SEG_LEN;
1599         ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
1600                 req1->sq_page_table_addr_lo;
1601         ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
1602                 req1->sq_page_table_addr_hi;
1603         ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
1604         ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
1605         ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
1606                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1607         ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
1608                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1609         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
1610                 iscsi->hq_info.pgtbl[0];
1611         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
1612                 iscsi->hq_info.pgtbl[1];
1613         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
1614                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1615         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
1616                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1617         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
1618                 iscsi->r2tq_info.pgtbl[0];
1619         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
1620                 iscsi->r2tq_info.pgtbl[1];
1621         ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
1622                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1623         ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
1624                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1625         ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
1626                 BNX2X_ISCSI_PBL_NOT_CACHED;
1627         ictx->xstorm_st_context.iscsi.flags.flags |=
1628                 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
1629         ictx->xstorm_st_context.iscsi.flags.flags |=
1630                 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
1631
1632         ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
1633         /* TSTORM requires the base address of RQ DB & not PTE */
1634         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
1635                 req2->rq_page_table_addr_lo & PAGE_MASK;
1636         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
1637                 req2->rq_page_table_addr_hi;
1638         ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
1639         ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
1640         ictx->tstorm_st_context.tcp.flags2 |=
1641                 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
1642         ictx->tstorm_st_context.tcp.ooo_support_mode =
1643                 TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
1644
1645         ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
1646
1647         ictx->ustorm_st_context.ring.rq.pbl_base.lo =
1648                 req2->rq_page_table_addr_lo;
1649         ictx->ustorm_st_context.ring.rq.pbl_base.hi =
1650                 req2->rq_page_table_addr_hi;
1651         ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
1652         ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
1653         ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
1654                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1655         ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
1656                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1657         ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
1658                 iscsi->r2tq_info.pgtbl[0];
1659         ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
1660                 iscsi->r2tq_info.pgtbl[1];
1661         ictx->ustorm_st_context.ring.cq_pbl_base.lo =
1662                 req1->cq_page_table_addr_lo;
1663         ictx->ustorm_st_context.ring.cq_pbl_base.hi =
1664                 req1->cq_page_table_addr_hi;
1665         ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
1666         ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
1667         ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
1668         ictx->ustorm_st_context.task_pbe_cache_index =
1669                 BNX2X_ISCSI_PBL_NOT_CACHED;
1670         ictx->ustorm_st_context.task_pdu_cache_index =
1671                 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
1672
1673         for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
1674                 if (j == 3) {
1675                         if (n >= n_max)
1676                                 break;
1677                         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1678                         j = 0;
1679                 }
1680                 ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
1681                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
1682                         req3->qp_first_pte[j].hi;
1683                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
1684                         req3->qp_first_pte[j].lo;
1685         }
1686
1687         ictx->ustorm_st_context.task_pbl_base.lo =
1688                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1689         ictx->ustorm_st_context.task_pbl_base.hi =
1690                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1691         ictx->ustorm_st_context.tce_phy_addr.lo =
1692                 iscsi->task_array_info.pgtbl[0];
1693         ictx->ustorm_st_context.tce_phy_addr.hi =
1694                 iscsi->task_array_info.pgtbl[1];
1695         ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1696         ictx->ustorm_st_context.num_cqs = cp->num_cqs;
1697         ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
1698         ictx->ustorm_st_context.negotiated_rx_and_flags |=
1699                 ISCSI_DEF_MAX_BURST_LEN;
1700         ictx->ustorm_st_context.negotiated_rx |=
1701                 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
1702                 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
1703
1704         ictx->cstorm_st_context.hq_pbl_base.lo =
1705                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1706         ictx->cstorm_st_context.hq_pbl_base.hi =
1707                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1708         ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
1709         ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
1710         ictx->cstorm_st_context.task_pbl_base.lo =
1711                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1712         ictx->cstorm_st_context.task_pbl_base.hi =
1713                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1714         /* CSTORM and USTORM initialization is different, CSTORM requires
1715          * CQ DB base & not PTE addr */
1716         ictx->cstorm_st_context.cq_db_base.lo =
1717                 req1->cq_page_table_addr_lo & PAGE_MASK;
1718         ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
1719         ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1720         ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
1721         for (i = 0; i < cp->num_cqs; i++) {
1722                 ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
1723                         ISCSI_INITIAL_SN;
1724                 ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
1725                         ISCSI_INITIAL_SN;
1726         }
1727
1728         ictx->xstorm_ag_context.cdu_reserved =
1729                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
1730                                        ISCSI_CONNECTION_TYPE);
1731         ictx->ustorm_ag_context.cdu_usage =
1732                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
1733                                        ISCSI_CONNECTION_TYPE);
1734         return 0;
1735
1736 }
1737
1738 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
1739                                    u32 num, int *work)
1740 {
1741         struct iscsi_kwqe_conn_offload1 *req1;
1742         struct iscsi_kwqe_conn_offload2 *req2;
1743         struct cnic_local *cp = dev->cnic_priv;
1744         struct cnic_context *ctx;
1745         struct iscsi_kcqe kcqe;
1746         struct kcqe *cqes[1];
1747         u32 l5_cid;
1748         int ret = 0;
1749
1750         if (num < 2) {
1751                 *work = num;
1752                 return -EINVAL;
1753         }
1754
1755         req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1756         req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1757         if ((num - 2) < req2->num_additional_wqes) {
1758                 *work = num;
1759                 return -EINVAL;
1760         }
1761         *work = 2 + req2->num_additional_wqes;
1762
1763         l5_cid = req1->iscsi_conn_id;
1764         if (l5_cid >= MAX_ISCSI_TBL_SZ)
1765                 return -EINVAL;
1766
1767         memset(&kcqe, 0, sizeof(kcqe));
1768         kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
1769         kcqe.iscsi_conn_id = l5_cid;
1770         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
1771
1772         ctx = &cp->ctx_tbl[l5_cid];
1773         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
1774                 kcqe.completion_status =
1775                         ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
1776                 goto done;
1777         }
1778
1779         if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
1780                 atomic_dec(&cp->iscsi_conn);
1781                 goto done;
1782         }
1783         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
1784         if (ret) {
1785                 atomic_dec(&cp->iscsi_conn);
1786                 ret = 0;
1787                 goto done;
1788         }
1789         ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
1790         if (ret < 0) {
1791                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
1792                 atomic_dec(&cp->iscsi_conn);
1793                 goto done;
1794         }
1795
1796         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1797         kcqe.iscsi_conn_context_id = BNX2X_HW_CID(cp, cp->ctx_tbl[l5_cid].cid);
1798
1799 done:
1800         cqes[0] = (struct kcqe *) &kcqe;
1801         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1802         return ret;
1803 }
1804
1805
1806 static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
1807 {
1808         struct cnic_local *cp = dev->cnic_priv;
1809         struct iscsi_kwqe_conn_update *req =
1810                 (struct iscsi_kwqe_conn_update *) kwqe;
1811         void *data;
1812         union l5cm_specific_data l5_data;
1813         u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
1814         int ret;
1815
1816         if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
1817                 return -EINVAL;
1818
1819         data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
1820         if (!data)
1821                 return -ENOMEM;
1822
1823         memcpy(data, kwqe, sizeof(struct kwqe));
1824
1825         ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
1826                         req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
1827         return ret;
1828 }
1829
1830 static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
1831 {
1832         struct cnic_local *cp = dev->cnic_priv;
1833         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1834         union l5cm_specific_data l5_data;
1835         int ret;
1836         u32 hw_cid;
1837
1838         init_waitqueue_head(&ctx->waitq);
1839         ctx->wait_cond = 0;
1840         memset(&l5_data, 0, sizeof(l5_data));
1841         hw_cid = BNX2X_HW_CID(cp, ctx->cid);
1842
1843         ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
1844                                   hw_cid, NONE_CONNECTION_TYPE, &l5_data);
1845
1846         if (ret == 0)
1847                 wait_event(ctx->waitq, ctx->wait_cond);
1848
1849         return ret;
1850 }
1851
1852 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
1853 {
1854         struct cnic_local *cp = dev->cnic_priv;
1855         struct iscsi_kwqe_conn_destroy *req =
1856                 (struct iscsi_kwqe_conn_destroy *) kwqe;
1857         u32 l5_cid = req->reserved0;
1858         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1859         int ret = 0;
1860         struct iscsi_kcqe kcqe;
1861         struct kcqe *cqes[1];
1862
1863         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
1864                 goto skip_cfc_delete;
1865
1866         if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
1867                 unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
1868
1869                 if (delta > (2 * HZ))
1870                         delta = 0;
1871
1872                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
1873                 queue_delayed_work(cnic_wq, &cp->delete_task, delta);
1874                 goto destroy_reply;
1875         }
1876
1877         ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
1878
1879 skip_cfc_delete:
1880         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1881
1882         atomic_dec(&cp->iscsi_conn);
1883         clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
1884
1885 destroy_reply:
1886         memset(&kcqe, 0, sizeof(kcqe));
1887         kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
1888         kcqe.iscsi_conn_id = l5_cid;
1889         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1890         kcqe.iscsi_conn_context_id = req->context_id;
1891
1892         cqes[0] = (struct kcqe *) &kcqe;
1893         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1894
1895         return ret;
1896 }
1897
1898 static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
1899                                       struct l4_kwq_connect_req1 *kwqe1,
1900                                       struct l4_kwq_connect_req3 *kwqe3,
1901                                       struct l5cm_active_conn_buffer *conn_buf)
1902 {
1903         struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
1904         struct l5cm_xstorm_conn_buffer *xstorm_buf =
1905                 &conn_buf->xstorm_conn_buffer;
1906         struct l5cm_tstorm_conn_buffer *tstorm_buf =
1907                 &conn_buf->tstorm_conn_buffer;
1908         struct regpair context_addr;
1909         u32 cid = BNX2X_SW_CID(kwqe1->cid);
1910         struct in6_addr src_ip, dst_ip;
1911         int i;
1912         u32 *addrp;
1913
1914         addrp = (u32 *) &conn_addr->local_ip_addr;
1915         for (i = 0; i < 4; i++, addrp++)
1916                 src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1917
1918         addrp = (u32 *) &conn_addr->remote_ip_addr;
1919         for (i = 0; i < 4; i++, addrp++)
1920                 dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1921
1922         cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
1923
1924         xstorm_buf->context_addr.hi = context_addr.hi;
1925         xstorm_buf->context_addr.lo = context_addr.lo;
1926         xstorm_buf->mss = 0xffff;
1927         xstorm_buf->rcv_buf = kwqe3->rcv_buf;
1928         if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
1929                 xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
1930         xstorm_buf->pseudo_header_checksum =
1931                 swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
1932
1933         if (!(kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK))
1934                 tstorm_buf->params |=
1935                         L5CM_TSTORM_CONN_BUFFER_DELAYED_ACK_ENABLE;
1936         if (kwqe3->ka_timeout) {
1937                 tstorm_buf->ka_enable = 1;
1938                 tstorm_buf->ka_timeout = kwqe3->ka_timeout;
1939                 tstorm_buf->ka_interval = kwqe3->ka_interval;
1940                 tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
1941         }
1942         tstorm_buf->rcv_buf = kwqe3->rcv_buf;
1943         tstorm_buf->snd_buf = kwqe3->snd_buf;
1944         tstorm_buf->max_rt_time = 0xffffffff;
1945 }
1946
1947 static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
1948 {
1949         struct cnic_local *cp = dev->cnic_priv;
1950         u32 pfid = cp->pfid;
1951         u8 *mac = dev->mac_addr;
1952
1953         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1954                  XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
1955         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1956                  XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
1957         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1958                  XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
1959         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1960                  XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
1961         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1962                  XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
1963         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1964                  XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
1965
1966         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1967                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
1968         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1969                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
1970                  mac[4]);
1971         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1972                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
1973         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1974                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
1975                  mac[2]);
1976         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1977                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 2,
1978                  mac[1]);
1979         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1980                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 3,
1981                  mac[0]);
1982 }
1983
1984 static void cnic_bnx2x_set_tcp_timestamp(struct cnic_dev *dev, int tcp_ts)
1985 {
1986         struct cnic_local *cp = dev->cnic_priv;
1987         u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
1988         u16 tstorm_flags = 0;
1989
1990         if (tcp_ts) {
1991                 xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1992                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1993         }
1994
1995         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1996                  XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), xstorm_flags);
1997
1998         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1999                   TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), tstorm_flags);
2000 }
2001
2002 static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
2003                               u32 num, int *work)
2004 {
2005         struct cnic_local *cp = dev->cnic_priv;
2006         struct l4_kwq_connect_req1 *kwqe1 =
2007                 (struct l4_kwq_connect_req1 *) wqes[0];
2008         struct l4_kwq_connect_req3 *kwqe3;
2009         struct l5cm_active_conn_buffer *conn_buf;
2010         struct l5cm_conn_addr_params *conn_addr;
2011         union l5cm_specific_data l5_data;
2012         u32 l5_cid = kwqe1->pg_cid;
2013         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
2014         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2015         int ret;
2016
2017         if (num < 2) {
2018                 *work = num;
2019                 return -EINVAL;
2020         }
2021
2022         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
2023                 *work = 3;
2024         else
2025                 *work = 2;
2026
2027         if (num < *work) {
2028                 *work = num;
2029                 return -EINVAL;
2030         }
2031
2032         if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
2033                 netdev_err(dev->netdev, "conn_buf size too big\n");
2034                 return -ENOMEM;
2035         }
2036         conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2037         if (!conn_buf)
2038                 return -ENOMEM;
2039
2040         memset(conn_buf, 0, sizeof(*conn_buf));
2041
2042         conn_addr = &conn_buf->conn_addr_buf;
2043         conn_addr->remote_addr_0 = csk->ha[0];
2044         conn_addr->remote_addr_1 = csk->ha[1];
2045         conn_addr->remote_addr_2 = csk->ha[2];
2046         conn_addr->remote_addr_3 = csk->ha[3];
2047         conn_addr->remote_addr_4 = csk->ha[4];
2048         conn_addr->remote_addr_5 = csk->ha[5];
2049
2050         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
2051                 struct l4_kwq_connect_req2 *kwqe2 =
2052                         (struct l4_kwq_connect_req2 *) wqes[1];
2053
2054                 conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
2055                 conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
2056                 conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
2057
2058                 conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
2059                 conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
2060                 conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
2061                 conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
2062         }
2063         kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
2064
2065         conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
2066         conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
2067         conn_addr->local_tcp_port = kwqe1->src_port;
2068         conn_addr->remote_tcp_port = kwqe1->dst_port;
2069
2070         conn_addr->pmtu = kwqe3->pmtu;
2071         cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
2072
2073         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
2074                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(cp->pfid), csk->vlan_id);
2075
2076         cnic_bnx2x_set_tcp_timestamp(dev,
2077                 kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_TIME_STAMP);
2078
2079         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
2080                         kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2081         if (!ret)
2082                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2083
2084         return ret;
2085 }
2086
2087 static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
2088 {
2089         struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
2090         union l5cm_specific_data l5_data;
2091         int ret;
2092
2093         memset(&l5_data, 0, sizeof(l5_data));
2094         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
2095                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2096         return ret;
2097 }
2098
2099 static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
2100 {
2101         struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
2102         union l5cm_specific_data l5_data;
2103         int ret;
2104
2105         memset(&l5_data, 0, sizeof(l5_data));
2106         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
2107                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2108         return ret;
2109 }
2110 static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2111 {
2112         struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
2113         struct l4_kcq kcqe;
2114         struct kcqe *cqes[1];
2115
2116         memset(&kcqe, 0, sizeof(kcqe));
2117         kcqe.pg_host_opaque = req->host_opaque;
2118         kcqe.pg_cid = req->host_opaque;
2119         kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
2120         cqes[0] = (struct kcqe *) &kcqe;
2121         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2122         return 0;
2123 }
2124
2125 static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2126 {
2127         struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
2128         struct l4_kcq kcqe;
2129         struct kcqe *cqes[1];
2130
2131         memset(&kcqe, 0, sizeof(kcqe));
2132         kcqe.pg_host_opaque = req->pg_host_opaque;
2133         kcqe.pg_cid = req->pg_cid;
2134         kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
2135         cqes[0] = (struct kcqe *) &kcqe;
2136         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2137         return 0;
2138 }
2139
2140 static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
2141 {
2142         struct fcoe_kwqe_stat *req;
2143         struct fcoe_stat_ramrod_params *fcoe_stat;
2144         union l5cm_specific_data l5_data;
2145         struct cnic_local *cp = dev->cnic_priv;
2146         int ret;
2147         u32 cid;
2148
2149         req = (struct fcoe_kwqe_stat *) kwqe;
2150         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2151
2152         fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2153         if (!fcoe_stat)
2154                 return -ENOMEM;
2155
2156         memset(fcoe_stat, 0, sizeof(*fcoe_stat));
2157         memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
2158
2159         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT, cid,
2160                                   FCOE_CONNECTION_TYPE, &l5_data);
2161         return ret;
2162 }
2163
2164 static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
2165                                  u32 num, int *work)
2166 {
2167         int ret;
2168         struct cnic_local *cp = dev->cnic_priv;
2169         u32 cid;
2170         struct fcoe_init_ramrod_params *fcoe_init;
2171         struct fcoe_kwqe_init1 *req1;
2172         struct fcoe_kwqe_init2 *req2;
2173         struct fcoe_kwqe_init3 *req3;
2174         union l5cm_specific_data l5_data;
2175
2176         if (num < 3) {
2177                 *work = num;
2178                 return -EINVAL;
2179         }
2180         req1 = (struct fcoe_kwqe_init1 *) wqes[0];
2181         req2 = (struct fcoe_kwqe_init2 *) wqes[1];
2182         req3 = (struct fcoe_kwqe_init3 *) wqes[2];
2183         if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
2184                 *work = 1;
2185                 return -EINVAL;
2186         }
2187         if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
2188                 *work = 2;
2189                 return -EINVAL;
2190         }
2191
2192         if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
2193                 netdev_err(dev->netdev, "fcoe_init size too big\n");
2194                 return -ENOMEM;
2195         }
2196         fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2197         if (!fcoe_init)
2198                 return -ENOMEM;
2199
2200         memset(fcoe_init, 0, sizeof(*fcoe_init));
2201         memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
2202         memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
2203         memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
2204         fcoe_init->eq_addr.lo = cp->kcq2.dma.pg_map_arr[0] & 0xffffffff;
2205         fcoe_init->eq_addr.hi = (u64) cp->kcq2.dma.pg_map_arr[0] >> 32;
2206         fcoe_init->eq_next_page_addr.lo =
2207                 cp->kcq2.dma.pg_map_arr[1] & 0xffffffff;
2208         fcoe_init->eq_next_page_addr.hi =
2209                 (u64) cp->kcq2.dma.pg_map_arr[1] >> 32;
2210
2211         fcoe_init->sb_num = cp->status_blk_num;
2212         fcoe_init->eq_prod = MAX_KCQ_IDX;
2213         fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
2214         cp->kcq2.sw_prod_idx = 0;
2215
2216         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2217         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT, cid,
2218                                   FCOE_CONNECTION_TYPE, &l5_data);
2219         *work = 3;
2220         return ret;
2221 }
2222
2223 static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
2224                                  u32 num, int *work)
2225 {
2226         int ret = 0;
2227         u32 cid = -1, l5_cid;
2228         struct cnic_local *cp = dev->cnic_priv;
2229         struct fcoe_kwqe_conn_offload1 *req1;
2230         struct fcoe_kwqe_conn_offload2 *req2;
2231         struct fcoe_kwqe_conn_offload3 *req3;
2232         struct fcoe_kwqe_conn_offload4 *req4;
2233         struct fcoe_conn_offload_ramrod_params *fcoe_offload;
2234         struct cnic_context *ctx;
2235         struct fcoe_context *fctx;
2236         struct regpair ctx_addr;
2237         union l5cm_specific_data l5_data;
2238         struct fcoe_kcqe kcqe;
2239         struct kcqe *cqes[1];
2240
2241         if (num < 4) {
2242                 *work = num;
2243                 return -EINVAL;
2244         }
2245         req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
2246         req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
2247         req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
2248         req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
2249
2250         *work = 4;
2251
2252         l5_cid = req1->fcoe_conn_id;
2253         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2254                 goto err_reply;
2255
2256         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2257
2258         ctx = &cp->ctx_tbl[l5_cid];
2259         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2260                 goto err_reply;
2261
2262         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
2263         if (ret) {
2264                 ret = 0;
2265                 goto err_reply;
2266         }
2267         cid = ctx->cid;
2268
2269         fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
2270         if (fctx) {
2271                 u32 hw_cid = BNX2X_HW_CID(cp, cid);
2272                 u32 val;
2273
2274                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
2275                                              FCOE_CONNECTION_TYPE);
2276                 fctx->xstorm_ag_context.cdu_reserved = val;
2277                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
2278                                              FCOE_CONNECTION_TYPE);
2279                 fctx->ustorm_ag_context.cdu_usage = val;
2280         }
2281         if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
2282                 netdev_err(dev->netdev, "fcoe_offload size too big\n");
2283                 goto err_reply;
2284         }
2285         fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2286         if (!fcoe_offload)
2287                 goto err_reply;
2288
2289         memset(fcoe_offload, 0, sizeof(*fcoe_offload));
2290         memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
2291         memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
2292         memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
2293         memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
2294
2295         cid = BNX2X_HW_CID(cp, cid);
2296         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
2297                                   FCOE_CONNECTION_TYPE, &l5_data);
2298         if (!ret)
2299                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2300
2301         return ret;
2302
2303 err_reply:
2304         if (cid != -1)
2305                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
2306
2307         memset(&kcqe, 0, sizeof(kcqe));
2308         kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
2309         kcqe.fcoe_conn_id = req1->fcoe_conn_id;
2310         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
2311
2312         cqes[0] = (struct kcqe *) &kcqe;
2313         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2314         return ret;
2315 }
2316
2317 static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
2318 {
2319         struct fcoe_kwqe_conn_enable_disable *req;
2320         struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
2321         union l5cm_specific_data l5_data;
2322         int ret;
2323         u32 cid, l5_cid;
2324         struct cnic_local *cp = dev->cnic_priv;
2325
2326         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2327         cid = req->context_id;
2328         l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
2329
2330         if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
2331                 netdev_err(dev->netdev, "fcoe_enable size too big\n");
2332                 return -ENOMEM;
2333         }
2334         fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2335         if (!fcoe_enable)
2336                 return -ENOMEM;
2337
2338         memset(fcoe_enable, 0, sizeof(*fcoe_enable));
2339         memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
2340         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
2341                                   FCOE_CONNECTION_TYPE, &l5_data);
2342         return ret;
2343 }
2344
2345 static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
2346 {
2347         struct fcoe_kwqe_conn_enable_disable *req;
2348         struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
2349         union l5cm_specific_data l5_data;
2350         int ret;
2351         u32 cid, l5_cid;
2352         struct cnic_local *cp = dev->cnic_priv;
2353
2354         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2355         cid = req->context_id;
2356         l5_cid = req->conn_id;
2357         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2358                 return -EINVAL;
2359
2360         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2361
2362         if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
2363                 netdev_err(dev->netdev, "fcoe_disable size too big\n");
2364                 return -ENOMEM;
2365         }
2366         fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2367         if (!fcoe_disable)
2368                 return -ENOMEM;
2369
2370         memset(fcoe_disable, 0, sizeof(*fcoe_disable));
2371         memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
2372         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
2373                                   FCOE_CONNECTION_TYPE, &l5_data);
2374         return ret;
2375 }
2376
2377 static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2378 {
2379         struct fcoe_kwqe_conn_destroy *req;
2380         union l5cm_specific_data l5_data;
2381         int ret;
2382         u32 cid, l5_cid;
2383         struct cnic_local *cp = dev->cnic_priv;
2384         struct cnic_context *ctx;
2385         struct fcoe_kcqe kcqe;
2386         struct kcqe *cqes[1];
2387
2388         req = (struct fcoe_kwqe_conn_destroy *) kwqe;
2389         cid = req->context_id;
2390         l5_cid = req->conn_id;
2391         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2392                 return -EINVAL;
2393
2394         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2395
2396         ctx = &cp->ctx_tbl[l5_cid];
2397
2398         init_waitqueue_head(&ctx->waitq);
2399         ctx->wait_cond = 0;
2400
2401         memset(&l5_data, 0, sizeof(l5_data));
2402         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
2403                                   FCOE_CONNECTION_TYPE, &l5_data);
2404         if (ret == 0) {
2405                 wait_event(ctx->waitq, ctx->wait_cond);
2406                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2407                 queue_delayed_work(cnic_wq, &cp->delete_task,
2408                                    msecs_to_jiffies(2000));
2409         }
2410
2411         memset(&kcqe, 0, sizeof(kcqe));
2412         kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
2413         kcqe.fcoe_conn_id = req->conn_id;
2414         kcqe.fcoe_conn_context_id = cid;
2415
2416         cqes[0] = (struct kcqe *) &kcqe;
2417         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2418         return ret;
2419 }
2420
2421 static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2422 {
2423         struct fcoe_kwqe_destroy *req;
2424         union l5cm_specific_data l5_data;
2425         struct cnic_local *cp = dev->cnic_priv;
2426         int ret;
2427         u32 cid;
2428
2429         req = (struct fcoe_kwqe_destroy *) kwqe;
2430         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2431
2432         memset(&l5_data, 0, sizeof(l5_data));
2433         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY, cid,
2434                                   FCOE_CONNECTION_TYPE, &l5_data);
2435         return ret;
2436 }
2437
2438 static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev,
2439                                          struct kwqe *wqes[], u32 num_wqes)
2440 {
2441         int i, work, ret;
2442         u32 opcode;
2443         struct kwqe *kwqe;
2444
2445         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2446                 return -EAGAIN;         /* bnx2 is down */
2447
2448         for (i = 0; i < num_wqes; ) {
2449                 kwqe = wqes[i];
2450                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2451                 work = 1;
2452
2453                 switch (opcode) {
2454                 case ISCSI_KWQE_OPCODE_INIT1:
2455                         ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
2456                         break;
2457                 case ISCSI_KWQE_OPCODE_INIT2:
2458                         ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
2459                         break;
2460                 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
2461                         ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
2462                                                      num_wqes - i, &work);
2463                         break;
2464                 case ISCSI_KWQE_OPCODE_UPDATE_CONN:
2465                         ret = cnic_bnx2x_iscsi_update(dev, kwqe);
2466                         break;
2467                 case ISCSI_KWQE_OPCODE_DESTROY_CONN:
2468                         ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
2469                         break;
2470                 case L4_KWQE_OPCODE_VALUE_CONNECT1:
2471                         ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
2472                                                  &work);
2473                         break;
2474                 case L4_KWQE_OPCODE_VALUE_CLOSE:
2475                         ret = cnic_bnx2x_close(dev, kwqe);
2476                         break;
2477                 case L4_KWQE_OPCODE_VALUE_RESET:
2478                         ret = cnic_bnx2x_reset(dev, kwqe);
2479                         break;
2480                 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
2481                         ret = cnic_bnx2x_offload_pg(dev, kwqe);
2482                         break;
2483                 case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
2484                         ret = cnic_bnx2x_update_pg(dev, kwqe);
2485                         break;
2486                 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
2487                         ret = 0;
2488                         break;
2489                 default:
2490                         ret = 0;
2491                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2492                                    opcode);
2493                         break;
2494                 }
2495                 if (ret < 0)
2496                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2497                                    opcode);
2498                 i += work;
2499         }
2500         return 0;
2501 }
2502
2503 static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
2504                                         struct kwqe *wqes[], u32 num_wqes)
2505 {
2506         struct cnic_local *cp = dev->cnic_priv;
2507         int i, work, ret;
2508         u32 opcode;
2509         struct kwqe *kwqe;
2510
2511         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2512                 return -EAGAIN;         /* bnx2 is down */
2513
2514         if (BNX2X_CHIP_NUM(cp->chip_id) == BNX2X_CHIP_NUM_57710)
2515                 return -EINVAL;
2516
2517         for (i = 0; i < num_wqes; ) {
2518                 kwqe = wqes[i];
2519                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2520                 work = 1;
2521
2522                 switch (opcode) {
2523                 case FCOE_KWQE_OPCODE_INIT1:
2524                         ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
2525                                                     num_wqes - i, &work);
2526                         break;
2527                 case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
2528                         ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
2529                                                     num_wqes - i, &work);
2530                         break;
2531                 case FCOE_KWQE_OPCODE_ENABLE_CONN:
2532                         ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
2533                         break;
2534                 case FCOE_KWQE_OPCODE_DISABLE_CONN:
2535                         ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
2536                         break;
2537                 case FCOE_KWQE_OPCODE_DESTROY_CONN:
2538                         ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
2539                         break;
2540                 case FCOE_KWQE_OPCODE_DESTROY:
2541                         ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
2542                         break;
2543                 case FCOE_KWQE_OPCODE_STAT:
2544                         ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
2545                         break;
2546                 default:
2547                         ret = 0;
2548                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2549                                    opcode);
2550                         break;
2551                 }
2552                 if (ret < 0)
2553                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2554                                    opcode);
2555                 i += work;
2556         }
2557         return 0;
2558 }
2559
2560 static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
2561                                    u32 num_wqes)
2562 {
2563         int ret = -EINVAL;
2564         u32 layer_code;
2565
2566         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2567                 return -EAGAIN;         /* bnx2x is down */
2568
2569         if (!num_wqes)
2570                 return 0;
2571
2572         layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
2573         switch (layer_code) {
2574         case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
2575         case KWQE_FLAGS_LAYER_MASK_L4:
2576         case KWQE_FLAGS_LAYER_MASK_L2:
2577                 ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
2578                 break;
2579
2580         case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
2581                 ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
2582                 break;
2583         }
2584         return ret;
2585 }
2586
2587 static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
2588 {
2589         if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
2590                 return KCQE_FLAGS_LAYER_MASK_L4;
2591
2592         return opflag & KCQE_FLAGS_LAYER_MASK;
2593 }
2594
2595 static void service_kcqes(struct cnic_dev *dev, int num_cqes)
2596 {
2597         struct cnic_local *cp = dev->cnic_priv;
2598         int i, j, comp = 0;
2599
2600         i = 0;
2601         j = 1;
2602         while (num_cqes) {
2603                 struct cnic_ulp_ops *ulp_ops;
2604                 int ulp_type;
2605                 u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
2606                 u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag);
2607
2608                 if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
2609                         comp++;
2610
2611                 while (j < num_cqes) {
2612                         u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
2613
2614                         if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
2615                                 break;
2616
2617                         if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
2618                                 comp++;
2619                         j++;
2620                 }
2621
2622                 if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
2623                         ulp_type = CNIC_ULP_RDMA;
2624                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
2625                         ulp_type = CNIC_ULP_ISCSI;
2626                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE)
2627                         ulp_type = CNIC_ULP_FCOE;
2628                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
2629                         ulp_type = CNIC_ULP_L4;
2630                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
2631                         goto end;
2632                 else {
2633                         netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
2634                                    kcqe_op_flag);
2635                         goto end;
2636                 }
2637
2638                 rcu_read_lock();
2639                 ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
2640                 if (likely(ulp_ops)) {
2641                         ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
2642                                                   cp->completed_kcq + i, j);
2643                 }
2644                 rcu_read_unlock();
2645 end:
2646                 num_cqes -= j;
2647                 i += j;
2648                 j = 1;
2649         }
2650         if (unlikely(comp))
2651                 cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
2652 }
2653
2654 static u16 cnic_bnx2_next_idx(u16 idx)
2655 {
2656         return idx + 1;
2657 }
2658
2659 static u16 cnic_bnx2_hw_idx(u16 idx)
2660 {
2661         return idx;
2662 }
2663
2664 static u16 cnic_bnx2x_next_idx(u16 idx)
2665 {
2666         idx++;
2667         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
2668                 idx++;
2669
2670         return idx;
2671 }
2672
2673 static u16 cnic_bnx2x_hw_idx(u16 idx)
2674 {
2675         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
2676                 idx++;
2677         return idx;
2678 }
2679
2680 static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
2681 {
2682         struct cnic_local *cp = dev->cnic_priv;
2683         u16 i, ri, hw_prod, last;
2684         struct kcqe *kcqe;
2685         int kcqe_cnt = 0, last_cnt = 0;
2686
2687         i = ri = last = info->sw_prod_idx;
2688         ri &= MAX_KCQ_IDX;
2689         hw_prod = *info->hw_prod_idx_ptr;
2690         hw_prod = cp->hw_idx(hw_prod);
2691
2692         while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
2693                 kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
2694                 cp->completed_kcq[kcqe_cnt++] = kcqe;
2695                 i = cp->next_idx(i);
2696                 ri = i & MAX_KCQ_IDX;
2697                 if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
2698                         last_cnt = kcqe_cnt;
2699                         last = i;
2700                 }
2701         }
2702
2703         info->sw_prod_idx = last;
2704         return last_cnt;
2705 }
2706
2707 static int cnic_l2_completion(struct cnic_local *cp)
2708 {
2709         u16 hw_cons, sw_cons;
2710         struct cnic_uio_dev *udev = cp->udev;
2711         union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
2712                                         (udev->l2_ring + (2 * BCM_PAGE_SIZE));
2713         u32 cmd;
2714         int comp = 0;
2715
2716         if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
2717                 return 0;
2718
2719         hw_cons = *cp->rx_cons_ptr;
2720         if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
2721                 hw_cons++;
2722
2723         sw_cons = cp->rx_cons;
2724         while (sw_cons != hw_cons) {
2725                 u8 cqe_fp_flags;
2726
2727                 cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
2728                 cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
2729                 if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
2730                         cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
2731                         cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
2732                         if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
2733                             cmd == RAMROD_CMD_ID_ETH_HALT)
2734                                 comp++;
2735                 }
2736                 sw_cons = BNX2X_NEXT_RCQE(sw_cons);
2737         }
2738         return comp;
2739 }
2740
2741 static void cnic_chk_pkt_rings(struct cnic_local *cp)
2742 {
2743         u16 rx_cons, tx_cons;
2744         int comp = 0;
2745
2746         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
2747                 return;
2748
2749         rx_cons = *cp->rx_cons_ptr;
2750         tx_cons = *cp->tx_cons_ptr;
2751         if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
2752                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
2753                         comp = cnic_l2_completion(cp);
2754
2755                 cp->tx_cons = tx_cons;
2756                 cp->rx_cons = rx_cons;
2757
2758                 if (cp->udev)
2759                         uio_event_notify(&cp->udev->cnic_uinfo);
2760         }
2761         if (comp)
2762                 clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
2763 }
2764
2765 static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
2766 {
2767         struct cnic_local *cp = dev->cnic_priv;
2768         u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2769         int kcqe_cnt;
2770
2771         /* status block index must be read before reading other fields */
2772         rmb();
2773         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2774
2775         while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
2776
2777                 service_kcqes(dev, kcqe_cnt);
2778
2779                 /* Tell compiler that status_blk fields can change. */
2780                 barrier();
2781                 if (status_idx != *cp->kcq1.status_idx_ptr) {
2782                         status_idx = (u16) *cp->kcq1.status_idx_ptr;
2783                         /* status block index must be read first */
2784                         rmb();
2785                         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2786                 } else
2787                         break;
2788         }
2789
2790         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
2791
2792         cnic_chk_pkt_rings(cp);
2793
2794         return status_idx;
2795 }
2796
2797 static int cnic_service_bnx2(void *data, void *status_blk)
2798 {
2799         struct cnic_dev *dev = data;
2800
2801         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2802                 struct status_block *sblk = status_blk;
2803
2804                 return sblk->status_idx;
2805         }
2806
2807         return cnic_service_bnx2_queues(dev);
2808 }
2809
2810 static void cnic_service_bnx2_msix(unsigned long data)
2811 {
2812         struct cnic_dev *dev = (struct cnic_dev *) data;
2813         struct cnic_local *cp = dev->cnic_priv;
2814
2815         cp->last_status_idx = cnic_service_bnx2_queues(dev);
2816
2817         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
2818                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
2819 }
2820
2821 static void cnic_doirq(struct cnic_dev *dev)
2822 {
2823         struct cnic_local *cp = dev->cnic_priv;
2824
2825         if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2826                 u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
2827
2828                 prefetch(cp->status_blk.gen);
2829                 prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
2830
2831                 tasklet_schedule(&cp->cnic_irq_task);
2832         }
2833 }
2834
2835 static irqreturn_t cnic_irq(int irq, void *dev_instance)
2836 {
2837         struct cnic_dev *dev = dev_instance;
2838         struct cnic_local *cp = dev->cnic_priv;
2839
2840         if (cp->ack_int)
2841                 cp->ack_int(dev);
2842
2843         cnic_doirq(dev);
2844
2845         return IRQ_HANDLED;
2846 }
2847
2848 static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
2849                                       u16 index, u8 op, u8 update)
2850 {
2851         struct cnic_local *cp = dev->cnic_priv;
2852         u32 hc_addr = (HC_REG_COMMAND_REG + CNIC_PORT(cp) * 32 +
2853                        COMMAND_REG_INT_ACK);
2854         struct igu_ack_register igu_ack;
2855
2856         igu_ack.status_block_index = index;
2857         igu_ack.sb_id_and_flags =
2858                         ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
2859                          (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
2860                          (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
2861                          (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
2862
2863         CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
2864 }
2865
2866 static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
2867                             u16 index, u8 op, u8 update)
2868 {
2869         struct igu_regular cmd_data;
2870         u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
2871
2872         cmd_data.sb_id_and_flags =
2873                 (index << IGU_REGULAR_SB_INDEX_SHIFT) |
2874                 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
2875                 (update << IGU_REGULAR_BUPDATE_SHIFT) |
2876                 (op << IGU_REGULAR_ENABLE_INT_SHIFT);
2877
2878
2879         CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
2880 }
2881
2882 static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
2883 {
2884         struct cnic_local *cp = dev->cnic_priv;
2885
2886         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
2887                            IGU_INT_DISABLE, 0);
2888 }
2889
2890 static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
2891 {
2892         struct cnic_local *cp = dev->cnic_priv;
2893
2894         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0,
2895                         IGU_INT_DISABLE, 0);
2896 }
2897
2898 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
2899 {
2900         u32 last_status = *info->status_idx_ptr;
2901         int kcqe_cnt;
2902
2903         /* status block index must be read before reading the KCQ */
2904         rmb();
2905         while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
2906
2907                 service_kcqes(dev, kcqe_cnt);
2908
2909                 /* Tell compiler that sblk fields can change. */
2910                 barrier();
2911                 if (last_status == *info->status_idx_ptr)
2912                         break;
2913
2914                 last_status = *info->status_idx_ptr;
2915                 /* status block index must be read before reading the KCQ */
2916                 rmb();
2917         }
2918         return last_status;
2919 }
2920
2921 static void cnic_service_bnx2x_bh(unsigned long data)
2922 {
2923         struct cnic_dev *dev = (struct cnic_dev *) data;
2924         struct cnic_local *cp = dev->cnic_priv;
2925         u32 status_idx, new_status_idx;
2926
2927         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
2928                 return;
2929
2930         while (1) {
2931                 status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
2932
2933                 CNIC_WR16(dev, cp->kcq1.io_addr,
2934                           cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
2935
2936                 if (!BNX2X_CHIP_IS_E2(cp->chip_id)) {
2937                         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,
2938                                            status_idx, IGU_INT_ENABLE, 1);
2939                         break;
2940                 }
2941
2942                 new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
2943
2944                 if (new_status_idx != status_idx)
2945                         continue;
2946
2947                 CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
2948                           MAX_KCQ_IDX);
2949
2950                 cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
2951                                 status_idx, IGU_INT_ENABLE, 1);
2952
2953                 break;
2954         }
2955 }
2956
2957 static int cnic_service_bnx2x(void *data, void *status_blk)
2958 {
2959         struct cnic_dev *dev = data;
2960         struct cnic_local *cp = dev->cnic_priv;
2961
2962         if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
2963                 cnic_doirq(dev);
2964
2965         cnic_chk_pkt_rings(cp);
2966
2967         return 0;
2968 }
2969
2970 static void cnic_ulp_stop_one(struct cnic_local *cp, int if_type)
2971 {
2972         struct cnic_ulp_ops *ulp_ops;
2973
2974         if (if_type == CNIC_ULP_ISCSI)
2975                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
2976
2977         mutex_lock(&cnic_lock);
2978         ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
2979                                             lockdep_is_held(&cnic_lock));
2980         if (!ulp_ops) {
2981                 mutex_unlock(&cnic_lock);
2982                 return;
2983         }
2984         set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2985         mutex_unlock(&cnic_lock);
2986
2987         if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
2988                 ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
2989
2990         clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2991 }
2992
2993 static void cnic_ulp_stop(struct cnic_dev *dev)
2994 {
2995         struct cnic_local *cp = dev->cnic_priv;
2996         int if_type;
2997
2998         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++)
2999                 cnic_ulp_stop_one(cp, if_type);
3000 }
3001
3002 static void cnic_ulp_start(struct cnic_dev *dev)
3003 {
3004         struct cnic_local *cp = dev->cnic_priv;
3005         int if_type;
3006
3007         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
3008                 struct cnic_ulp_ops *ulp_ops;
3009
3010                 mutex_lock(&cnic_lock);
3011                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3012                                                     lockdep_is_held(&cnic_lock));
3013                 if (!ulp_ops || !ulp_ops->cnic_start) {
3014                         mutex_unlock(&cnic_lock);
3015                         continue;
3016                 }
3017                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3018                 mutex_unlock(&cnic_lock);
3019
3020                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3021                         ulp_ops->cnic_start(cp->ulp_handle[if_type]);
3022
3023                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3024         }
3025 }
3026
3027 static int cnic_ctl(void *data, struct cnic_ctl_info *info)
3028 {
3029         struct cnic_dev *dev = data;
3030
3031         switch (info->cmd) {
3032         case CNIC_CTL_STOP_CMD:
3033                 cnic_hold(dev);
3034
3035                 cnic_ulp_stop(dev);
3036                 cnic_stop_hw(dev);
3037
3038                 cnic_put(dev);
3039                 break;
3040         case CNIC_CTL_START_CMD:
3041                 cnic_hold(dev);
3042
3043                 if (!cnic_start_hw(dev))
3044                         cnic_ulp_start(dev);
3045
3046                 cnic_put(dev);
3047                 break;
3048         case CNIC_CTL_STOP_ISCSI_CMD: {
3049                 struct cnic_local *cp = dev->cnic_priv;
3050                 set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags);
3051                 queue_delayed_work(cnic_wq, &cp->delete_task, 0);
3052                 break;
3053         }
3054         case CNIC_CTL_COMPLETION_CMD: {
3055                 u32 cid = BNX2X_SW_CID(info->data.comp.cid);
3056                 u32 l5_cid;
3057                 struct cnic_local *cp = dev->cnic_priv;
3058
3059                 if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
3060                         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3061
3062                         ctx->wait_cond = 1;
3063                         wake_up(&ctx->waitq);
3064                 }
3065                 break;
3066         }
3067         default:
3068                 return -EINVAL;
3069         }
3070         return 0;
3071 }
3072
3073 static void cnic_ulp_init(struct cnic_dev *dev)
3074 {
3075         int i;
3076         struct cnic_local *cp = dev->cnic_priv;
3077
3078         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3079                 struct cnic_ulp_ops *ulp_ops;
3080
3081                 mutex_lock(&cnic_lock);
3082                 ulp_ops = cnic_ulp_tbl_prot(i);
3083                 if (!ulp_ops || !ulp_ops->cnic_init) {
3084                         mutex_unlock(&cnic_lock);
3085                         continue;
3086                 }
3087                 ulp_get(ulp_ops);
3088                 mutex_unlock(&cnic_lock);
3089
3090                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3091                         ulp_ops->cnic_init(dev);
3092
3093                 ulp_put(ulp_ops);
3094         }
3095 }
3096
3097 static void cnic_ulp_exit(struct cnic_dev *dev)
3098 {
3099         int i;
3100         struct cnic_local *cp = dev->cnic_priv;
3101
3102         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3103                 struct cnic_ulp_ops *ulp_ops;
3104
3105                 mutex_lock(&cnic_lock);
3106                 ulp_ops = cnic_ulp_tbl_prot(i);
3107                 if (!ulp_ops || !ulp_ops->cnic_exit) {
3108                         mutex_unlock(&cnic_lock);
3109                         continue;
3110                 }
3111                 ulp_get(ulp_ops);
3112                 mutex_unlock(&cnic_lock);
3113
3114                 if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3115                         ulp_ops->cnic_exit(dev);
3116
3117                 ulp_put(ulp_ops);
3118         }
3119 }
3120
3121 static int cnic_cm_offload_pg(struct cnic_sock *csk)
3122 {
3123         struct cnic_dev *dev = csk->dev;
3124         struct l4_kwq_offload_pg *l4kwqe;
3125         struct kwqe *wqes[1];
3126
3127         l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
3128         memset(l4kwqe, 0, sizeof(*l4kwqe));
3129         wqes[0] = (struct kwqe *) l4kwqe;
3130
3131         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
3132         l4kwqe->flags =
3133                 L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
3134         l4kwqe->l2hdr_nbytes = ETH_HLEN;
3135
3136         l4kwqe->da0 = csk->ha[0];
3137         l4kwqe->da1 = csk->ha[1];
3138         l4kwqe->da2 = csk->ha[2];
3139         l4kwqe->da3 = csk->ha[3];
3140         l4kwqe->da4 = csk->ha[4];
3141         l4kwqe->da5 = csk->ha[5];
3142
3143         l4kwqe->sa0 = dev->mac_addr[0];
3144         l4kwqe->sa1 = dev->mac_addr[1];
3145         l4kwqe->sa2 = dev->mac_addr[2];
3146         l4kwqe->sa3 = dev->mac_addr[3];
3147         l4kwqe->sa4 = dev->mac_addr[4];
3148         l4kwqe->sa5 = dev->mac_addr[5];
3149
3150         l4kwqe->etype = ETH_P_IP;
3151         l4kwqe->ipid_start = DEF_IPID_START;
3152         l4kwqe->host_opaque = csk->l5_cid;
3153
3154         if (csk->vlan_id) {
3155                 l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
3156                 l4kwqe->vlan_tag = csk->vlan_id;
3157                 l4kwqe->l2hdr_nbytes += 4;
3158         }
3159
3160         return dev->submit_kwqes(dev, wqes, 1);
3161 }
3162
3163 static int cnic_cm_update_pg(struct cnic_sock *csk)
3164 {
3165         struct cnic_dev *dev = csk->dev;
3166         struct l4_kwq_update_pg *l4kwqe;
3167         struct kwqe *wqes[1];
3168
3169         l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
3170         memset(l4kwqe, 0, sizeof(*l4kwqe));
3171         wqes[0] = (struct kwqe *) l4kwqe;
3172
3173         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
3174         l4kwqe->flags =
3175                 L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
3176         l4kwqe->pg_cid = csk->pg_cid;
3177
3178         l4kwqe->da0 = csk->ha[0];
3179         l4kwqe->da1 = csk->ha[1];
3180         l4kwqe->da2 = csk->ha[2];
3181         l4kwqe->da3 = csk->ha[3];
3182         l4kwqe->da4 = csk->ha[4];
3183         l4kwqe->da5 = csk->ha[5];
3184
3185         l4kwqe->pg_host_opaque = csk->l5_cid;
3186         l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
3187
3188         return dev->submit_kwqes(dev, wqes, 1);
3189 }
3190
3191 static int cnic_cm_upload_pg(struct cnic_sock *csk)
3192 {
3193         struct cnic_dev *dev = csk->dev;
3194         struct l4_kwq_upload *l4kwqe;
3195         struct kwqe *wqes[1];
3196
3197         l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
3198         memset(l4kwqe, 0, sizeof(*l4kwqe));
3199         wqes[0] = (struct kwqe *) l4kwqe;
3200
3201         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
3202         l4kwqe->flags =
3203                 L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
3204         l4kwqe->cid = csk->pg_cid;
3205
3206         return dev->submit_kwqes(dev, wqes, 1);
3207 }
3208
3209 static int cnic_cm_conn_req(struct cnic_sock *csk)
3210 {
3211         struct cnic_dev *dev = csk->dev;
3212         struct l4_kwq_connect_req1 *l4kwqe1;
3213         struct l4_kwq_connect_req2 *l4kwqe2;
3214         struct l4_kwq_connect_req3 *l4kwqe3;
3215         struct kwqe *wqes[3];
3216         u8 tcp_flags = 0;
3217         int num_wqes = 2;
3218
3219         l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
3220         l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
3221         l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
3222         memset(l4kwqe1, 0, sizeof(*l4kwqe1));
3223         memset(l4kwqe2, 0, sizeof(*l4kwqe2));
3224         memset(l4kwqe3, 0, sizeof(*l4kwqe3));
3225
3226         l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
3227         l4kwqe3->flags =
3228                 L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
3229         l4kwqe3->ka_timeout = csk->ka_timeout;
3230         l4kwqe3->ka_interval = csk->ka_interval;
3231         l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
3232         l4kwqe3->tos = csk->tos;
3233         l4kwqe3->ttl = csk->ttl;
3234         l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
3235         l4kwqe3->pmtu = csk->mtu;
3236         l4kwqe3->rcv_buf = csk->rcv_buf;
3237         l4kwqe3->snd_buf = csk->snd_buf;
3238         l4kwqe3->seed = csk->seed;
3239
3240         wqes[0] = (struct kwqe *) l4kwqe1;
3241         if (test_bit(SK_F_IPV6, &csk->flags)) {
3242                 wqes[1] = (struct kwqe *) l4kwqe2;
3243                 wqes[2] = (struct kwqe *) l4kwqe3;
3244                 num_wqes = 3;
3245
3246                 l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
3247                 l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
3248                 l4kwqe2->flags =
3249                         L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
3250                         L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
3251                 l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
3252                 l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
3253                 l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
3254                 l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
3255                 l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
3256                 l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
3257                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
3258                                sizeof(struct tcphdr);
3259         } else {
3260                 wqes[1] = (struct kwqe *) l4kwqe3;
3261                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
3262                                sizeof(struct tcphdr);
3263         }
3264
3265         l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
3266         l4kwqe1->flags =
3267                 (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
3268                  L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
3269         l4kwqe1->cid = csk->cid;
3270         l4kwqe1->pg_cid = csk->pg_cid;
3271         l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
3272         l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
3273         l4kwqe1->src_port = be16_to_cpu(csk->src_port);
3274         l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
3275         if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
3276                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
3277         if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
3278                 tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
3279         if (csk->tcp_flags & SK_TCP_NAGLE)
3280                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
3281         if (csk->tcp_flags & SK_TCP_TIMESTAMP)
3282                 tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
3283         if (csk->tcp_flags & SK_TCP_SACK)
3284                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
3285         if (csk->tcp_flags & SK_TCP_SEG_SCALING)
3286                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
3287
3288         l4kwqe1->tcp_flags = tcp_flags;
3289
3290         return dev->submit_kwqes(dev, wqes, num_wqes);
3291 }
3292
3293 static int cnic_cm_close_req(struct cnic_sock *csk)
3294 {
3295         struct cnic_dev *dev = csk->dev;
3296         struct l4_kwq_close_req *l4kwqe;
3297         struct kwqe *wqes[1];
3298
3299         l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
3300         memset(l4kwqe, 0, sizeof(*l4kwqe));
3301         wqes[0] = (struct kwqe *) l4kwqe;
3302
3303         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
3304         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
3305         l4kwqe->cid = csk->cid;
3306
3307         return dev->submit_kwqes(dev, wqes, 1);
3308 }
3309
3310 static int cnic_cm_abort_req(struct cnic_sock *csk)
3311 {
3312         struct cnic_dev *dev = csk->dev;
3313         struct l4_kwq_reset_req *l4kwqe;
3314         struct kwqe *wqes[1];
3315
3316         l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
3317         memset(l4kwqe, 0, sizeof(*l4kwqe));
3318         wqes[0] = (struct kwqe *) l4kwqe;
3319
3320         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
3321         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
3322         l4kwqe->cid = csk->cid;
3323
3324         return dev->submit_kwqes(dev, wqes, 1);
3325 }
3326
3327 static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
3328                           u32 l5_cid, struct cnic_sock **csk, void *context)
3329 {
3330         struct cnic_local *cp = dev->cnic_priv;
3331         struct cnic_sock *csk1;
3332
3333         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3334                 return -EINVAL;
3335
3336         if (cp->ctx_tbl) {
3337                 struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3338
3339                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3340                         return -EAGAIN;
3341         }
3342
3343         csk1 = &cp->csk_tbl[l5_cid];
3344         if (atomic_read(&csk1->ref_count))
3345                 return -EAGAIN;
3346
3347         if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
3348                 return -EBUSY;
3349
3350         csk1->dev = dev;
3351         csk1->cid = cid;
3352         csk1->l5_cid = l5_cid;
3353         csk1->ulp_type = ulp_type;
3354         csk1->context = context;
3355
3356         csk1->ka_timeout = DEF_KA_TIMEOUT;
3357         csk1->ka_interval = DEF_KA_INTERVAL;
3358         csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
3359         csk1->tos = DEF_TOS;
3360         csk1->ttl = DEF_TTL;
3361         csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
3362         csk1->rcv_buf = DEF_RCV_BUF;
3363         csk1->snd_buf = DEF_SND_BUF;
3364         csk1->seed = DEF_SEED;
3365
3366         *csk = csk1;
3367         return 0;
3368 }
3369
3370 static void cnic_cm_cleanup(struct cnic_sock *csk)
3371 {
3372         if (csk->src_port) {
3373                 struct cnic_dev *dev = csk->dev;
3374                 struct cnic_local *cp = dev->cnic_priv;
3375
3376                 cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
3377                 csk->src_port = 0;
3378         }
3379 }
3380
3381 static void cnic_close_conn(struct cnic_sock *csk)
3382 {
3383         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
3384                 cnic_cm_upload_pg(csk);
3385                 clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3386         }
3387         cnic_cm_cleanup(csk);
3388 }
3389
3390 static int cnic_cm_destroy(struct cnic_sock *csk)
3391 {
3392         if (!cnic_in_use(csk))
3393                 return -EINVAL;
3394
3395         csk_hold(csk);
3396         clear_bit(SK_F_INUSE, &csk->flags);
3397         smp_mb__after_clear_bit();
3398         while (atomic_read(&csk->ref_count) != 1)
3399                 msleep(1);
3400         cnic_cm_cleanup(csk);
3401
3402         csk->flags = 0;
3403         csk_put(csk);
3404         return 0;
3405 }
3406
3407 static inline u16 cnic_get_vlan(struct net_device *dev,
3408                                 struct net_device **vlan_dev)
3409 {
3410         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3411                 *vlan_dev = vlan_dev_real_dev(dev);
3412                 return vlan_dev_vlan_id(dev);
3413         }
3414         *vlan_dev = dev;
3415         return 0;
3416 }
3417
3418 static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
3419                              struct dst_entry **dst)
3420 {
3421 #if defined(CONFIG_INET)
3422         struct rtable *rt;
3423
3424         rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
3425         if (!IS_ERR(rt)) {
3426                 *dst = &rt->dst;
3427                 return 0;
3428         }
3429         return PTR_ERR(rt);
3430 #else
3431         return -ENETUNREACH;
3432 #endif
3433 }
3434
3435 static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
3436                              struct dst_entry **dst)
3437 {
3438 #if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
3439         struct flowi6 fl6;
3440
3441         memset(&fl6, 0, sizeof(fl6));
3442         ipv6_addr_copy(&fl6.daddr, &dst_addr->sin6_addr);
3443         if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
3444                 fl6.flowi6_oif = dst_addr->sin6_scope_id;
3445
3446         *dst = ip6_route_output(&init_net, NULL, &fl6);
3447         if (*dst)
3448                 return 0;
3449 #endif
3450
3451         return -ENETUNREACH;
3452 }
3453
3454 static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
3455                                            int ulp_type)
3456 {
3457         struct cnic_dev *dev = NULL;
3458         struct dst_entry *dst;
3459         struct net_device *netdev = NULL;
3460         int err = -ENETUNREACH;
3461
3462         if (dst_addr->sin_family == AF_INET)
3463                 err = cnic_get_v4_route(dst_addr, &dst);
3464         else if (dst_addr->sin_family == AF_INET6) {
3465                 struct sockaddr_in6 *dst_addr6 =
3466                         (struct sockaddr_in6 *) dst_addr;
3467
3468                 err = cnic_get_v6_route(dst_addr6, &dst);
3469         } else
3470                 return NULL;
3471
3472         if (err)
3473                 return NULL;
3474
3475         if (!dst->dev)
3476                 goto done;
3477
3478         cnic_get_vlan(dst->dev, &netdev);
3479
3480         dev = cnic_from_netdev(netdev);
3481
3482 done:
3483         dst_release(dst);
3484         if (dev)
3485                 cnic_put(dev);
3486         return dev;
3487 }
3488
3489 static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3490 {
3491         struct cnic_dev *dev = csk->dev;
3492         struct cnic_local *cp = dev->cnic_priv;
3493
3494         return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
3495 }
3496
3497 static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3498 {
3499         struct cnic_dev *dev = csk->dev;
3500         struct cnic_local *cp = dev->cnic_priv;
3501         int is_v6, rc = 0;
3502         struct dst_entry *dst = NULL;
3503         struct net_device *realdev;
3504         __be16 local_port;
3505         u32 port_id;
3506
3507         if (saddr->local.v6.sin6_family == AF_INET6 &&
3508             saddr->remote.v6.sin6_family == AF_INET6)
3509                 is_v6 = 1;
3510         else if (saddr->local.v4.sin_family == AF_INET &&
3511                  saddr->remote.v4.sin_family == AF_INET)
3512                 is_v6 = 0;
3513         else
3514                 return -EINVAL;
3515
3516         clear_bit(SK_F_IPV6, &csk->flags);
3517
3518         if (is_v6) {
3519                 set_bit(SK_F_IPV6, &csk->flags);
3520                 cnic_get_v6_route(&saddr->remote.v6, &dst);
3521
3522                 memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
3523                        sizeof(struct in6_addr));
3524                 csk->dst_port = saddr->remote.v6.sin6_port;
3525                 local_port = saddr->local.v6.sin6_port;
3526
3527         } else {
3528                 cnic_get_v4_route(&saddr->remote.v4, &dst);
3529
3530                 csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
3531                 csk->dst_port = saddr->remote.v4.sin_port;
3532                 local_port = saddr->local.v4.sin_port;
3533         }
3534
3535         csk->vlan_id = 0;
3536         csk->mtu = dev->netdev->mtu;
3537         if (dst && dst->dev) {
3538                 u16 vlan = cnic_get_vlan(dst->dev, &realdev);
3539                 if (realdev == dev->netdev) {
3540                         csk->vlan_id = vlan;
3541                         csk->mtu = dst_mtu(dst);
3542                 }
3543         }
3544
3545         port_id = be16_to_cpu(local_port);
3546         if (port_id >= CNIC_LOCAL_PORT_MIN &&
3547             port_id < CNIC_LOCAL_PORT_MAX) {
3548                 if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
3549                         port_id = 0;
3550         } else
3551                 port_id = 0;
3552
3553         if (!port_id) {
3554                 port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
3555                 if (port_id == -1) {
3556                         rc = -ENOMEM;
3557                         goto err_out;
3558                 }
3559                 local_port = cpu_to_be16(port_id);
3560         }
3561         csk->src_port = local_port;
3562
3563 err_out:
3564         dst_release(dst);
3565         return rc;
3566 }
3567
3568 static void cnic_init_csk_state(struct cnic_sock *csk)
3569 {
3570         csk->state = 0;
3571         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3572         clear_bit(SK_F_CLOSING, &csk->flags);
3573 }
3574
3575 static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3576 {
3577         struct cnic_local *cp = csk->dev->cnic_priv;
3578         int err = 0;
3579
3580         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
3581                 return -EOPNOTSUPP;
3582
3583         if (!cnic_in_use(csk))
3584                 return -EINVAL;
3585
3586         if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
3587                 return -EINVAL;
3588
3589         cnic_init_csk_state(csk);
3590
3591         err = cnic_get_route(csk, saddr);
3592         if (err)
3593                 goto err_out;
3594
3595         err = cnic_resolve_addr(csk, saddr);
3596         if (!err)
3597                 return 0;
3598
3599 err_out:
3600         clear_bit(SK_F_CONNECT_START, &csk->flags);
3601         return err;
3602 }
3603
3604 static int cnic_cm_abort(struct cnic_sock *csk)
3605 {
3606         struct cnic_local *cp = csk->dev->cnic_priv;
3607         u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
3608
3609         if (!cnic_in_use(csk))
3610                 return -EINVAL;
3611
3612         if (cnic_abort_prep(csk))
3613                 return cnic_cm_abort_req(csk);
3614
3615         /* Getting here means that we haven't started connect, or
3616          * connect was not successful.
3617          */
3618
3619         cp->close_conn(csk, opcode);
3620         if (csk->state != opcode)
3621                 return -EALREADY;
3622
3623         return 0;
3624 }
3625
3626 static int cnic_cm_close(struct cnic_sock *csk)
3627 {
3628         if (!cnic_in_use(csk))
3629                 return -EINVAL;
3630
3631         if (cnic_close_prep(csk)) {
3632                 csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
3633                 return cnic_cm_close_req(csk);
3634         } else {
3635                 return -EALREADY;
3636         }
3637         return 0;
3638 }
3639
3640 static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
3641                            u8 opcode)
3642 {
3643         struct cnic_ulp_ops *ulp_ops;
3644         int ulp_type = csk->ulp_type;
3645
3646         rcu_read_lock();
3647         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
3648         if (ulp_ops) {
3649                 if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
3650                         ulp_ops->cm_connect_complete(csk);
3651                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3652                         ulp_ops->cm_close_complete(csk);
3653                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
3654                         ulp_ops->cm_remote_abort(csk);
3655                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
3656                         ulp_ops->cm_abort_complete(csk);
3657                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
3658                         ulp_ops->cm_remote_close(csk);
3659         }
3660         rcu_read_unlock();
3661 }
3662
3663 static int cnic_cm_set_pg(struct cnic_sock *csk)
3664 {
3665         if (cnic_offld_prep(csk)) {
3666                 if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3667                         cnic_cm_update_pg(csk);
3668                 else
3669                         cnic_cm_offload_pg(csk);
3670         }
3671         return 0;
3672 }
3673
3674 static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
3675 {
3676         struct cnic_local *cp = dev->cnic_priv;
3677         u32 l5_cid = kcqe->pg_host_opaque;
3678         u8 opcode = kcqe->op_code;
3679         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
3680
3681         csk_hold(csk);
3682         if (!cnic_in_use(csk))
3683                 goto done;
3684
3685         if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3686                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3687                 goto done;
3688         }
3689         /* Possible PG kcqe status:  SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
3690         if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
3691                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3692                 cnic_cm_upcall(cp, csk,
3693                                L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3694                 goto done;
3695         }
3696
3697         csk->pg_cid = kcqe->pg_cid;
3698         set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3699         cnic_cm_conn_req(csk);
3700
3701 done:
3702         csk_put(csk);
3703 }
3704
3705 static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
3706 {
3707         struct cnic_local *cp = dev->cnic_priv;
3708         struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
3709         u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
3710         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3711
3712         ctx->timestamp = jiffies;
3713         ctx->wait_cond = 1;
3714         wake_up(&ctx->waitq);
3715 }
3716
3717 static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
3718 {
3719         struct cnic_local *cp = dev->cnic_priv;
3720         struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
3721         u8 opcode = l4kcqe->op_code;
3722         u32 l5_cid;
3723         struct cnic_sock *csk;
3724
3725         if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
3726                 cnic_process_fcoe_term_conn(dev, kcqe);
3727                 return;
3728         }
3729         if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
3730             opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3731                 cnic_cm_process_offld_pg(dev, l4kcqe);
3732                 return;
3733         }
3734
3735         l5_cid = l4kcqe->conn_id;
3736         if (opcode & 0x80)
3737                 l5_cid = l4kcqe->cid;
3738         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3739                 return;
3740
3741         csk = &cp->csk_tbl[l5_cid];
3742         csk_hold(csk);
3743
3744         if (!cnic_in_use(csk)) {
3745                 csk_put(csk);
3746                 return;
3747         }
3748
3749         switch (opcode) {
3750         case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
3751                 if (l4kcqe->status != 0) {
3752                         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3753                         cnic_cm_upcall(cp, csk,
3754                                        L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3755                 }
3756                 break;
3757         case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
3758                 if (l4kcqe->status == 0)
3759                         set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
3760
3761                 smp_mb__before_clear_bit();
3762                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3763                 cnic_cm_upcall(cp, csk, opcode);
3764                 break;
3765
3766         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3767         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3768         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3769         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3770         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3771                 cp->close_conn(csk, opcode);
3772                 break;
3773
3774         case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
3775                 cnic_cm_upcall(cp, csk, opcode);
3776                 break;
3777         }
3778         csk_put(csk);
3779 }
3780
3781 static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
3782 {
3783         struct cnic_dev *dev = data;
3784         int i;
3785
3786         for (i = 0; i < num; i++)
3787                 cnic_cm_process_kcqe(dev, kcqe[i]);
3788 }
3789
3790 static struct cnic_ulp_ops cm_ulp_ops = {
3791         .indicate_kcqes         = cnic_cm_indicate_kcqe,
3792 };
3793
3794 static void cnic_cm_free_mem(struct cnic_dev *dev)
3795 {
3796         struct cnic_local *cp = dev->cnic_priv;
3797
3798         kfree(cp->csk_tbl);
3799         cp->csk_tbl = NULL;
3800         cnic_free_id_tbl(&cp->csk_port_tbl);
3801 }
3802
3803 static int cnic_cm_alloc_mem(struct cnic_dev *dev)
3804 {
3805         struct cnic_local *cp = dev->cnic_priv;
3806
3807         cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ,
3808                               GFP_KERNEL);
3809         if (!cp->csk_tbl)
3810                 return -ENOMEM;
3811
3812         if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
3813                              CNIC_LOCAL_PORT_MIN)) {
3814                 cnic_cm_free_mem(dev);
3815                 return -ENOMEM;
3816         }
3817         return 0;
3818 }
3819
3820 static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
3821 {
3822         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
3823                 /* Unsolicited RESET_COMP or RESET_RECEIVED */
3824                 opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
3825                 csk->state = opcode;
3826         }
3827
3828         /* 1. If event opcode matches the expected event in csk->state
3829          * 2. If the expected event is CLOSE_COMP, we accept any event
3830          * 3. If the expected event is 0, meaning the connection was never
3831          *    never established, we accept the opcode from cm_abort.
3832          */
3833         if (opcode == csk->state || csk->state == 0 ||
3834             csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP) {
3835                 if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
3836                         if (csk->state == 0)
3837                                 csk->state = opcode;
3838                         return 1;
3839                 }
3840         }
3841         return 0;
3842 }
3843
3844 static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
3845 {
3846         struct cnic_dev *dev = csk->dev;
3847         struct cnic_local *cp = dev->cnic_priv;
3848
3849         if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
3850                 cnic_cm_upcall(cp, csk, opcode);
3851                 return;
3852         }
3853
3854         clear_bit(SK_F_CONNECT_START, &csk->flags);
3855         cnic_close_conn(csk);
3856         csk->state = opcode;
3857         cnic_cm_upcall(cp, csk, opcode);
3858 }
3859
3860 static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
3861 {
3862 }
3863
3864 static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
3865 {
3866         u32 seed;
3867
3868         get_random_bytes(&seed, 4);
3869         cnic_ctx_wr(dev, 45, 0, seed);
3870         return 0;
3871 }
3872
3873 static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
3874 {
3875         struct cnic_dev *dev = csk->dev;
3876         struct cnic_local *cp = dev->cnic_priv;
3877         struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
3878         union l5cm_specific_data l5_data;
3879         u32 cmd = 0;
3880         int close_complete = 0;
3881
3882         switch (opcode) {
3883         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3884         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3885         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3886                 if (cnic_ready_to_close(csk, opcode)) {
3887                         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3888                                 cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
3889                         else
3890                                 close_complete = 1;
3891                 }
3892                 break;
3893         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3894                 cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
3895                 break;
3896         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3897                 close_complete = 1;
3898                 break;
3899         }
3900         if (cmd) {
3901                 memset(&l5_data, 0, sizeof(l5_data));
3902
3903                 cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
3904                                     &l5_data);
3905         } else if (close_complete) {
3906                 ctx->timestamp = jiffies;
3907                 cnic_close_conn(csk);
3908                 cnic_cm_upcall(cp, csk, csk->state);
3909         }
3910 }
3911
3912 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
3913 {
3914         struct cnic_local *cp = dev->cnic_priv;
3915         int i;
3916
3917         if (!cp->ctx_tbl)
3918                 return;
3919
3920         if (!netif_running(dev->netdev))
3921                 return;
3922
3923         for (i = 0; i < cp->max_cid_space; i++) {
3924                 struct cnic_context *ctx = &cp->ctx_tbl[i];
3925
3926                 while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
3927                         msleep(10);
3928
3929                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3930                         netdev_warn(dev->netdev, "CID %x not deleted\n",
3931                                    ctx->cid);
3932         }
3933
3934         cancel_delayed_work(&cp->delete_task);
3935         flush_workqueue(cnic_wq);
3936
3937         if (atomic_read(&cp->iscsi_conn) != 0)
3938                 netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
3939                             atomic_read(&cp->iscsi_conn));
3940 }
3941
3942 static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
3943 {
3944         struct cnic_local *cp = dev->cnic_priv;
3945         u32 pfid = cp->pfid;
3946         u32 port = CNIC_PORT(cp);
3947
3948         cnic_init_bnx2x_mac(dev);
3949         cnic_bnx2x_set_tcp_timestamp(dev, 1);
3950
3951         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
3952                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
3953
3954         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3955                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
3956         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3957                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
3958                 DEF_MAX_DA_COUNT);
3959
3960         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3961                  XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
3962         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3963                  XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
3964         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3965                  XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
3966         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3967                 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
3968
3969         CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
3970                 DEF_MAX_CWND);
3971         return 0;
3972 }
3973
3974 static void cnic_delete_task(struct work_struct *work)
3975 {
3976         struct cnic_local *cp;
3977         struct cnic_dev *dev;
3978         u32 i;
3979         int need_resched = 0;
3980
3981         cp = container_of(work, struct cnic_local, delete_task.work);
3982         dev = cp->dev;
3983
3984         if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) {
3985                 struct drv_ctl_info info;
3986
3987                 cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI);
3988
3989                 info.cmd = DRV_CTL_ISCSI_STOPPED_CMD;
3990                 cp->ethdev->drv_ctl(dev->netdev, &info);
3991         }
3992
3993         for (i = 0; i < cp->max_cid_space; i++) {
3994                 struct cnic_context *ctx = &cp->ctx_tbl[i];
3995
3996                 if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
3997                     !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
3998                         continue;
3999
4000                 if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
4001                         need_resched = 1;
4002                         continue;
4003                 }
4004
4005                 if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4006                         continue;
4007
4008                 cnic_bnx2x_destroy_ramrod(dev, i);
4009
4010                 cnic_free_bnx2x_conn_resc(dev, i);
4011                 if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
4012                         atomic_dec(&cp->iscsi_conn);
4013
4014                 clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
4015         }
4016
4017         if (need_resched)
4018                 queue_delayed_work(cnic_wq, &cp->delete_task,
4019                                    msecs_to_jiffies(10));
4020
4021 }
4022
4023 static int cnic_cm_open(struct cnic_dev *dev)
4024 {
4025         struct cnic_local *cp = dev->cnic_priv;
4026         int err;
4027
4028         err = cnic_cm_alloc_mem(dev);
4029         if (err)
4030                 return err;
4031
4032         err = cp->start_cm(dev);
4033
4034         if (err)
4035                 goto err_out;
4036
4037         INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
4038
4039         dev->cm_create = cnic_cm_create;
4040         dev->cm_destroy = cnic_cm_destroy;
4041         dev->cm_connect = cnic_cm_connect;
4042         dev->cm_abort = cnic_cm_abort;
4043         dev->cm_close = cnic_cm_close;
4044         dev->cm_select_dev = cnic_cm_select_dev;
4045
4046         cp->ulp_handle[CNIC_ULP_L4] = dev;
4047         rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
4048         return 0;
4049
4050 err_out:
4051         cnic_cm_free_mem(dev);
4052         return err;
4053 }
4054
4055 static int cnic_cm_shutdown(struct cnic_dev *dev)
4056 {
4057         struct cnic_local *cp = dev->cnic_priv;
4058         int i;
4059
4060         cp->stop_cm(dev);
4061
4062         if (!cp->csk_tbl)
4063                 return 0;
4064
4065         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
4066                 struct cnic_sock *csk = &cp->csk_tbl[i];
4067
4068                 clear_bit(SK_F_INUSE, &csk->flags);
4069                 cnic_cm_cleanup(csk);
4070         }
4071         cnic_cm_free_mem(dev);
4072
4073         return 0;
4074 }
4075
4076 static void cnic_init_context(struct cnic_dev *dev, u32 cid)
4077 {
4078         u32 cid_addr;
4079         int i;
4080
4081         cid_addr = GET_CID_ADDR(cid);
4082
4083         for (i = 0; i < CTX_SIZE; i += 4)
4084                 cnic_ctx_wr(dev, cid_addr, i, 0);
4085 }
4086
4087 static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
4088 {
4089         struct cnic_local *cp = dev->cnic_priv;
4090         int ret = 0, i;
4091         u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
4092
4093         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4094                 return 0;
4095
4096         for (i = 0; i < cp->ctx_blks; i++) {
4097                 int j;
4098                 u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
4099                 u32 val;
4100
4101                 memset(cp->ctx_arr[i].ctx, 0, BCM_PAGE_SIZE);
4102
4103                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
4104                         (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
4105                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
4106                         (u64) cp->ctx_arr[i].mapping >> 32);
4107                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
4108                         BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
4109                 for (j = 0; j < 10; j++) {
4110
4111                         val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
4112                         if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
4113                                 break;
4114                         udelay(5);
4115                 }
4116                 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
4117                         ret = -EBUSY;
4118                         break;
4119                 }
4120         }
4121         return ret;
4122 }
4123
4124 static void cnic_free_irq(struct cnic_dev *dev)
4125 {
4126         struct cnic_local *cp = dev->cnic_priv;
4127         struct cnic_eth_dev *ethdev = cp->ethdev;
4128
4129         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4130                 cp->disable_int_sync(dev);
4131                 tasklet_kill(&cp->cnic_irq_task);
4132                 free_irq(ethdev->irq_arr[0].vector, dev);
4133         }
4134 }
4135
4136 static int cnic_request_irq(struct cnic_dev *dev)
4137 {
4138         struct cnic_local *cp = dev->cnic_priv;
4139         struct cnic_eth_dev *ethdev = cp->ethdev;
4140         int err;
4141
4142         err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
4143         if (err)
4144                 tasklet_disable(&cp->cnic_irq_task);
4145
4146         return err;
4147 }
4148
4149 static int cnic_init_bnx2_irq(struct cnic_dev *dev)
4150 {
4151         struct cnic_local *cp = dev->cnic_priv;
4152         struct cnic_eth_dev *ethdev = cp->ethdev;
4153
4154         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4155                 int err, i = 0;
4156                 int sblk_num = cp->status_blk_num;
4157                 u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
4158                            BNX2_HC_SB_CONFIG_1;
4159
4160                 CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
4161
4162                 CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
4163                 CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
4164                 CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
4165
4166                 cp->last_status_idx = cp->status_blk.bnx2->status_idx;
4167                 tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix,
4168                              (unsigned long) dev);
4169                 err = cnic_request_irq(dev);
4170                 if (err)
4171                         return err;
4172
4173                 while (cp->status_blk.bnx2->status_completion_producer_index &&
4174                        i < 10) {
4175                         CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
4176                                 1 << (11 + sblk_num));
4177                         udelay(10);
4178                         i++;
4179                         barrier();
4180                 }
4181                 if (cp->status_blk.bnx2->status_completion_producer_index) {
4182                         cnic_free_irq(dev);
4183                         goto failed;
4184                 }
4185
4186         } else {
4187                 struct status_block *sblk = cp->status_blk.gen;
4188                 u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
4189                 int i = 0;
4190
4191                 while (sblk->status_completion_producer_index && i < 10) {
4192                         CNIC_WR(dev, BNX2_HC_COMMAND,
4193                                 hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
4194                         udelay(10);
4195                         i++;
4196                         barrier();
4197                 }
4198                 if (sblk->status_completion_producer_index)
4199                         goto failed;
4200
4201         }
4202         return 0;
4203
4204 failed:
4205         netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
4206         return -EBUSY;
4207 }
4208
4209 static void cnic_enable_bnx2_int(struct cnic_dev *dev)
4210 {
4211         struct cnic_local *cp = dev->cnic_priv;
4212         struct cnic_eth_dev *ethdev = cp->ethdev;
4213
4214         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4215                 return;
4216
4217         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4218                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
4219 }
4220
4221 static void cnic_get_bnx2_iscsi_info(struct cnic_dev *dev)
4222 {
4223         u32 max_conn;
4224
4225         max_conn = cnic_reg_rd_ind(dev, BNX2_FW_MAX_ISCSI_CONN);
4226         dev->max_iscsi_conn = max_conn;
4227 }
4228
4229 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
4230 {
4231         struct cnic_local *cp = dev->cnic_priv;
4232         struct cnic_eth_dev *ethdev = cp->ethdev;
4233
4234         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4235                 return;
4236
4237         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4238                 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4239         CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
4240         synchronize_irq(ethdev->irq_arr[0].vector);
4241 }
4242
4243 static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
4244 {
4245         struct cnic_local *cp = dev->cnic_priv;
4246         struct cnic_eth_dev *ethdev = cp->ethdev;
4247         struct cnic_uio_dev *udev = cp->udev;
4248         u32 cid_addr, tx_cid, sb_id;
4249         u32 val, offset0, offset1, offset2, offset3;
4250         int i;
4251         struct tx_bd *txbd;
4252         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4253         struct status_block *s_blk = cp->status_blk.gen;
4254
4255         sb_id = cp->status_blk_num;
4256         tx_cid = 20;
4257         cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
4258         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4259                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4260
4261                 tx_cid = TX_TSS_CID + sb_id - 1;
4262                 CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
4263                         (TX_TSS_CID << 7));
4264                 cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
4265         }
4266         cp->tx_cons = *cp->tx_cons_ptr;
4267
4268         cid_addr = GET_CID_ADDR(tx_cid);
4269         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
4270                 u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
4271
4272                 for (i = 0; i < PHY_CTX_SIZE; i += 4)
4273                         cnic_ctx_wr(dev, cid_addr2, i, 0);
4274
4275                 offset0 = BNX2_L2CTX_TYPE_XI;
4276                 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
4277                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
4278                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
4279         } else {
4280                 cnic_init_context(dev, tx_cid);
4281                 cnic_init_context(dev, tx_cid + 1);
4282
4283                 offset0 = BNX2_L2CTX_TYPE;
4284                 offset1 = BNX2_L2CTX_CMD_TYPE;
4285                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
4286                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
4287         }
4288         val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
4289         cnic_ctx_wr(dev, cid_addr, offset0, val);
4290
4291         val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
4292         cnic_ctx_wr(dev, cid_addr, offset1, val);
4293
4294         txbd = (struct tx_bd *) udev->l2_ring;
4295
4296         buf_map = udev->l2_buf_map;
4297         for (i = 0; i < MAX_TX_DESC_CNT; i++, txbd++) {
4298                 txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
4299                 txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4300         }
4301         val = (u64) ring_map >> 32;
4302         cnic_ctx_wr(dev, cid_addr, offset2, val);
4303         txbd->tx_bd_haddr_hi = val;
4304
4305         val = (u64) ring_map & 0xffffffff;
4306         cnic_ctx_wr(dev, cid_addr, offset3, val);
4307         txbd->tx_bd_haddr_lo = val;
4308 }
4309
4310 static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
4311 {
4312         struct cnic_local *cp = dev->cnic_priv;
4313         struct cnic_eth_dev *ethdev = cp->ethdev;
4314         struct cnic_uio_dev *udev = cp->udev;
4315         u32 cid_addr, sb_id, val, coal_reg, coal_val;
4316         int i;
4317         struct rx_bd *rxbd;
4318         struct status_block *s_blk = cp->status_blk.gen;
4319         dma_addr_t ring_map = udev->l2_ring_map;
4320
4321         sb_id = cp->status_blk_num;
4322         cnic_init_context(dev, 2);
4323         cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
4324         coal_reg = BNX2_HC_COMMAND;
4325         coal_val = CNIC_RD(dev, coal_reg);
4326         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4327                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4328
4329                 cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
4330                 coal_reg = BNX2_HC_COALESCE_NOW;
4331                 coal_val = 1 << (11 + sb_id);
4332         }
4333         i = 0;
4334         while (!(*cp->rx_cons_ptr != 0) && i < 10) {
4335                 CNIC_WR(dev, coal_reg, coal_val);
4336                 udelay(10);
4337                 i++;
4338                 barrier();
4339         }
4340         cp->rx_cons = *cp->rx_cons_ptr;
4341
4342         cid_addr = GET_CID_ADDR(2);
4343         val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4344               BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4345         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
4346
4347         if (sb_id == 0)
4348                 val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
4349         else
4350                 val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
4351         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
4352
4353         rxbd = (struct rx_bd *) (udev->l2_ring + BCM_PAGE_SIZE);
4354         for (i = 0; i < MAX_RX_DESC_CNT; i++, rxbd++) {
4355                 dma_addr_t buf_map;
4356                 int n = (i % cp->l2_rx_ring_size) + 1;
4357
4358                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4359                 rxbd->rx_bd_len = cp->l2_single_buf_size;
4360                 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
4361                 rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
4362                 rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4363         }
4364         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4365         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
4366         rxbd->rx_bd_haddr_hi = val;
4367
4368         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4369         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
4370         rxbd->rx_bd_haddr_lo = val;
4371
4372         val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
4373         cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
4374 }
4375
4376 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
4377 {
4378         struct kwqe *wqes[1], l2kwqe;
4379
4380         memset(&l2kwqe, 0, sizeof(l2kwqe));
4381         wqes[0] = &l2kwqe;
4382         l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
4383                               (L2_KWQE_OPCODE_VALUE_FLUSH <<
4384                                KWQE_OPCODE_SHIFT) | 2;
4385         dev->submit_kwqes(dev, wqes, 1);
4386 }
4387
4388 static void cnic_set_bnx2_mac(struct cnic_dev *dev)
4389 {
4390         struct cnic_local *cp = dev->cnic_priv;
4391         u32 val;
4392
4393         val = cp->func << 2;
4394
4395         cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
4396
4397         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4398                               BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
4399         dev->mac_addr[0] = (u8) (val >> 8);
4400         dev->mac_addr[1] = (u8) val;
4401
4402         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
4403
4404         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4405                               BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
4406         dev->mac_addr[2] = (u8) (val >> 24);
4407         dev->mac_addr[3] = (u8) (val >> 16);
4408         dev->mac_addr[4] = (u8) (val >> 8);
4409         dev->mac_addr[5] = (u8) val;
4410
4411         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
4412
4413         val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
4414         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4415                 val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
4416
4417         CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
4418         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
4419         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
4420 }
4421
4422 static int cnic_start_bnx2_hw(struct cnic_dev *dev)
4423 {
4424         struct cnic_local *cp = dev->cnic_priv;
4425         struct cnic_eth_dev *ethdev = cp->ethdev;
4426         struct status_block *sblk = cp->status_blk.gen;
4427         u32 val, kcq_cid_addr, kwq_cid_addr;
4428         int err;
4429
4430         cnic_set_bnx2_mac(dev);
4431
4432         val = CNIC_RD(dev, BNX2_MQ_CONFIG);
4433         val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4434         if (BCM_PAGE_BITS > 12)
4435                 val |= (12 - 8)  << 4;
4436         else
4437                 val |= (BCM_PAGE_BITS - 8)  << 4;
4438
4439         CNIC_WR(dev, BNX2_MQ_CONFIG, val);
4440
4441         CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
4442         CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
4443         CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
4444
4445         err = cnic_setup_5709_context(dev, 1);
4446         if (err)
4447                 return err;
4448
4449         cnic_init_context(dev, KWQ_CID);
4450         cnic_init_context(dev, KCQ_CID);
4451
4452         kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
4453         cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
4454
4455         cp->max_kwq_idx = MAX_KWQ_IDX;
4456         cp->kwq_prod_idx = 0;
4457         cp->kwq_con_idx = 0;
4458         set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
4459
4460         if (CHIP_NUM(cp) == CHIP_NUM_5706 || CHIP_NUM(cp) == CHIP_NUM_5708)
4461                 cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
4462         else
4463                 cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
4464
4465         /* Initialize the kernel work queue context. */
4466         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4467               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4468         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
4469
4470         val = (BCM_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
4471         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4472
4473         val = ((BCM_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
4474         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4475
4476         val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
4477         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4478
4479         val = (u32) cp->kwq_info.pgtbl_map;
4480         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4481
4482         kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
4483         cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
4484
4485         cp->kcq1.sw_prod_idx = 0;
4486         cp->kcq1.hw_prod_idx_ptr =
4487                 (u16 *) &sblk->status_completion_producer_index;
4488
4489         cp->kcq1.status_idx_ptr = (u16 *) &sblk->status_idx;
4490
4491         /* Initialize the kernel complete queue context. */
4492         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4493               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4494         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
4495
4496         val = (BCM_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
4497         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4498
4499         val = ((BCM_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
4500         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4501
4502         val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
4503         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4504
4505         val = (u32) cp->kcq1.dma.pgtbl_map;
4506         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4507
4508         cp->int_num = 0;
4509         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4510                 struct status_block_msix *msblk = cp->status_blk.bnx2;
4511                 u32 sb_id = cp->status_blk_num;
4512                 u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
4513
4514                 cp->kcq1.hw_prod_idx_ptr =
4515                         (u16 *) &msblk->status_completion_producer_index;
4516                 cp->kcq1.status_idx_ptr = (u16 *) &msblk->status_idx;
4517                 cp->kwq_con_idx_ptr = (u16 *) &msblk->status_cmd_consumer_index;
4518                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
4519                 cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4520                 cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4521         }
4522
4523         /* Enable Commnad Scheduler notification when we write to the
4524          * host producer index of the kernel contexts. */
4525         CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
4526
4527         /* Enable Command Scheduler notification when we write to either
4528          * the Send Queue or Receive Queue producer indexes of the kernel
4529          * bypass contexts. */
4530         CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
4531         CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
4532
4533         /* Notify COM when the driver post an application buffer. */
4534         CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
4535
4536         /* Set the CP and COM doorbells.  These two processors polls the
4537          * doorbell for a non zero value before running.  This must be done
4538          * after setting up the kernel queue contexts. */
4539         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
4540         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
4541
4542         cnic_init_bnx2_tx_ring(dev);
4543         cnic_init_bnx2_rx_ring(dev);
4544
4545         err = cnic_init_bnx2_irq(dev);
4546         if (err) {
4547                 netdev_err(dev->netdev, "cnic_init_irq failed\n");
4548                 cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
4549                 cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
4550                 return err;
4551         }
4552
4553         cnic_get_bnx2_iscsi_info(dev);
4554
4555         return 0;
4556 }
4557
4558 static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
4559 {
4560         struct cnic_local *cp = dev->cnic_priv;
4561         struct cnic_eth_dev *ethdev = cp->ethdev;
4562         u32 start_offset = ethdev->ctx_tbl_offset;
4563         int i;
4564
4565         for (i = 0; i < cp->ctx_blks; i++) {
4566                 struct cnic_ctx *ctx = &cp->ctx_arr[i];
4567                 dma_addr_t map = ctx->mapping;
4568
4569                 if (cp->ctx_align) {
4570                         unsigned long mask = cp->ctx_align - 1;
4571
4572                         map = (map + mask) & ~mask;
4573                 }
4574
4575                 cnic_ctx_tbl_wr(dev, start_offset + i, map);
4576         }
4577 }
4578
4579 static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
4580 {
4581         struct cnic_local *cp = dev->cnic_priv;
4582         struct cnic_eth_dev *ethdev = cp->ethdev;
4583         int err = 0;
4584
4585         tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh,
4586                      (unsigned long) dev);
4587         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
4588                 err = cnic_request_irq(dev);
4589
4590         return err;
4591 }
4592
4593 static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
4594                                                 u16 sb_id, u8 sb_index,
4595                                                 u8 disable)
4596 {
4597
4598         u32 addr = BAR_CSTRORM_INTMEM +
4599                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4600                         offsetof(struct hc_status_block_data_e1x, index_data) +
4601                         sizeof(struct hc_index_data)*sb_index +
4602                         offsetof(struct hc_index_data, flags);
4603         u16 flags = CNIC_RD16(dev, addr);
4604         /* clear and set */
4605         flags &= ~HC_INDEX_DATA_HC_ENABLED;
4606         flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
4607                   HC_INDEX_DATA_HC_ENABLED);
4608         CNIC_WR16(dev, addr, flags);
4609 }
4610
4611 static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
4612 {
4613         struct cnic_local *cp = dev->cnic_priv;
4614         u8 sb_id = cp->status_blk_num;
4615
4616         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4617                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4618                         offsetof(struct hc_status_block_data_e1x, index_data) +
4619                         sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
4620                         offsetof(struct hc_index_data, timeout), 64 / 12);
4621         cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
4622 }
4623
4624 static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
4625 {
4626 }
4627
4628 static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
4629                                     struct client_init_ramrod_data *data)
4630 {
4631         struct cnic_local *cp = dev->cnic_priv;
4632         struct cnic_uio_dev *udev = cp->udev;
4633         union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
4634         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4635         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4636         int port = CNIC_PORT(cp);
4637         int i;
4638         u32 cli = cp->ethdev->iscsi_l2_client_id;
4639         u32 val;
4640
4641         memset(txbd, 0, BCM_PAGE_SIZE);
4642
4643         buf_map = udev->l2_buf_map;
4644         for (i = 0; i < MAX_TX_DESC_CNT; i += 3, txbd += 3) {
4645                 struct eth_tx_start_bd *start_bd = &txbd->start_bd;
4646                 struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
4647
4648                 start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4649                 start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4650                 reg_bd->addr_hi = start_bd->addr_hi;
4651                 reg_bd->addr_lo = start_bd->addr_lo + 0x10;
4652                 start_bd->nbytes = cpu_to_le16(0x10);
4653                 start_bd->nbd = cpu_to_le16(3);
4654                 start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
4655                 start_bd->general_data = (UNICAST_ADDRESS <<
4656                         ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT);
4657                 start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
4658
4659         }
4660
4661         val = (u64) ring_map >> 32;
4662         txbd->next_bd.addr_hi = cpu_to_le32(val);
4663
4664         data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
4665
4666         val = (u64) ring_map & 0xffffffff;
4667         txbd->next_bd.addr_lo = cpu_to_le32(val);
4668
4669         data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
4670
4671         /* Other ramrod params */
4672         data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
4673         data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
4674
4675         /* reset xstorm per client statistics */
4676         if (cli < MAX_STAT_COUNTER_ID) {
4677                 val = BAR_XSTRORM_INTMEM +
4678                       XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4679                 for (i = 0; i < sizeof(struct xstorm_per_client_stats) / 4; i++)
4680                         CNIC_WR(dev, val + i * 4, 0);
4681         }
4682
4683         cp->tx_cons_ptr =
4684                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
4685 }
4686
4687 static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
4688                                     struct client_init_ramrod_data *data)
4689 {
4690         struct cnic_local *cp = dev->cnic_priv;
4691         struct cnic_uio_dev *udev = cp->udev;
4692         struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
4693                                 BCM_PAGE_SIZE);
4694         struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
4695                                 (udev->l2_ring + (2 * BCM_PAGE_SIZE));
4696         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4697         int i;
4698         int port = CNIC_PORT(cp);
4699         u32 cli = cp->ethdev->iscsi_l2_client_id;
4700         int cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4701         u32 val;
4702         dma_addr_t ring_map = udev->l2_ring_map;
4703
4704         /* General data */
4705         data->general.client_id = cli;
4706         data->general.statistics_en_flg = 1;
4707         data->general.statistics_counter_id = cli;
4708         data->general.activate_flg = 1;
4709         data->general.sp_client_id = cli;
4710
4711         for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
4712                 dma_addr_t buf_map;
4713                 int n = (i % cp->l2_rx_ring_size) + 1;
4714
4715                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4716                 rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4717                 rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4718         }
4719
4720         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4721         rxbd->addr_hi = cpu_to_le32(val);
4722         data->rx.bd_page_base.hi = cpu_to_le32(val);
4723
4724         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4725         rxbd->addr_lo = cpu_to_le32(val);
4726         data->rx.bd_page_base.lo = cpu_to_le32(val);
4727
4728         rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
4729         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) >> 32;
4730         rxcqe->addr_hi = cpu_to_le32(val);
4731         data->rx.cqe_page_base.hi = cpu_to_le32(val);
4732
4733         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) & 0xffffffff;
4734         rxcqe->addr_lo = cpu_to_le32(val);
4735         data->rx.cqe_page_base.lo = cpu_to_le32(val);
4736
4737         /* Other ramrod params */
4738         data->rx.client_qzone_id = cl_qzone_id;
4739         data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
4740         data->rx.status_block_id = BNX2X_DEF_SB_ID;
4741
4742         data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
4743         data->rx.bd_buff_size = cpu_to_le16(cp->l2_single_buf_size);
4744
4745         data->rx.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
4746         data->rx.outer_vlan_removal_enable_flg = 1;
4747
4748         /* reset tstorm and ustorm per client statistics */
4749         if (cli < MAX_STAT_COUNTER_ID) {
4750                 val = BAR_TSTRORM_INTMEM +
4751                       TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4752                 for (i = 0; i < sizeof(struct tstorm_per_client_stats) / 4; i++)
4753                         CNIC_WR(dev, val + i * 4, 0);
4754
4755                 val = BAR_USTRORM_INTMEM +
4756                       USTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4757                 for (i = 0; i < sizeof(struct ustorm_per_client_stats) / 4; i++)
4758                         CNIC_WR(dev, val + i * 4, 0);
4759         }
4760
4761         cp->rx_cons_ptr =
4762                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
4763         cp->rx_cons = *cp->rx_cons_ptr;
4764 }
4765
4766 static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
4767 {
4768         struct cnic_local *cp = dev->cnic_priv;
4769         u32 pfid = cp->pfid;
4770
4771         cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
4772                            CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
4773         cp->kcq1.sw_prod_idx = 0;
4774
4775         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4776                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4777
4778                 cp->kcq1.hw_prod_idx_ptr =
4779                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4780                 cp->kcq1.status_idx_ptr =
4781                         &sb->sb.running_index[SM_RX_ID];
4782         } else {
4783                 struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
4784
4785                 cp->kcq1.hw_prod_idx_ptr =
4786                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4787                 cp->kcq1.status_idx_ptr =
4788                         &sb->sb.running_index[SM_RX_ID];
4789         }
4790
4791         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4792                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4793
4794                 cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
4795                                         USTORM_FCOE_EQ_PROD_OFFSET(pfid);
4796                 cp->kcq2.sw_prod_idx = 0;
4797                 cp->kcq2.hw_prod_idx_ptr =
4798                         &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
4799                 cp->kcq2.status_idx_ptr =
4800                         &sb->sb.running_index[SM_RX_ID];
4801         }
4802 }
4803
4804 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
4805 {
4806         struct cnic_local *cp = dev->cnic_priv;
4807         struct cnic_eth_dev *ethdev = cp->ethdev;
4808         int func = CNIC_FUNC(cp), ret, i;
4809         u32 pfid;
4810
4811         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4812                 u32 val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN_OVWR);
4813
4814                 if (!(val & 1))
4815                         val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN);
4816                 else
4817                         val = (val >> 1) & 1;
4818
4819                 if (val)
4820                         cp->pfid = func >> 1;
4821                 else
4822                         cp->pfid = func & 0x6;
4823         } else {
4824                 cp->pfid = func;
4825         }
4826         pfid = cp->pfid;
4827
4828         ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
4829                                cp->iscsi_start_cid);
4830
4831         if (ret)
4832                 return -ENOMEM;
4833
4834         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4835                 ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl,
4836                                         BNX2X_FCOE_NUM_CONNECTIONS,
4837                                         cp->fcoe_start_cid);
4838
4839                 if (ret)
4840                         return -ENOMEM;
4841         }
4842
4843         cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
4844
4845         cnic_init_bnx2x_kcq(dev);
4846
4847         /* Only 1 EQ */
4848         CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
4849         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4850                 CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
4851         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4852                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
4853                 cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
4854         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4855                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
4856                 (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
4857         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4858                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
4859                 cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
4860         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4861                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
4862                 (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
4863         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4864                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
4865         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
4866                 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
4867         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4868                 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
4869                 HC_INDEX_ISCSI_EQ_CONS);
4870
4871         for (i = 0; i < cp->conn_buf_info.num_pages; i++) {
4872                 CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4873                         TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(pfid, i),
4874                         cp->conn_buf_info.pgtbl[2 * i]);
4875                 CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4876                         TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(pfid, i) + 4,
4877                         cp->conn_buf_info.pgtbl[(2 * i) + 1]);
4878         }
4879
4880         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4881                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
4882                 cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
4883         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4884                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
4885                 (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
4886
4887         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4888                 TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
4889
4890         cnic_setup_bnx2x_context(dev);
4891
4892         ret = cnic_init_bnx2x_irq(dev);
4893         if (ret)
4894                 return ret;
4895
4896         return 0;
4897 }
4898
4899 static void cnic_init_rings(struct cnic_dev *dev)
4900 {
4901         struct cnic_local *cp = dev->cnic_priv;
4902         struct cnic_uio_dev *udev = cp->udev;
4903
4904         if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4905                 return;
4906
4907         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4908                 cnic_init_bnx2_tx_ring(dev);
4909                 cnic_init_bnx2_rx_ring(dev);
4910                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4911         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4912                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4913                 u32 cid = cp->ethdev->iscsi_l2_cid;
4914                 u32 cl_qzone_id;
4915                 struct client_init_ramrod_data *data;
4916                 union l5cm_specific_data l5_data;
4917                 struct ustorm_eth_rx_producers rx_prods = {0};
4918                 u32 off, i;
4919
4920                 rx_prods.bd_prod = 0;
4921                 rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
4922                 barrier();
4923
4924                 cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4925
4926                 off = BAR_USTRORM_INTMEM +
4927                         (BNX2X_CHIP_IS_E2(cp->chip_id) ?
4928                          USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
4929                          USTORM_RX_PRODS_E1X_OFFSET(CNIC_PORT(cp), cli));
4930
4931                 for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
4932                         CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
4933
4934                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4935
4936                 data = udev->l2_buf;
4937
4938                 memset(data, 0, sizeof(*data));
4939
4940                 cnic_init_bnx2x_tx_ring(dev, data);
4941                 cnic_init_bnx2x_rx_ring(dev, data);
4942
4943                 l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
4944                 l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
4945
4946                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4947
4948                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
4949                         cid, ETH_CONNECTION_TYPE, &l5_data);
4950
4951                 i = 0;
4952                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
4953                        ++i < 10)
4954                         msleep(1);
4955
4956                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
4957                         netdev_err(dev->netdev,
4958                                 "iSCSI CLIENT_SETUP did not complete\n");
4959                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
4960                 cnic_ring_ctl(dev, cid, cli, 1);
4961         }
4962 }
4963
4964 static void cnic_shutdown_rings(struct cnic_dev *dev)
4965 {
4966         struct cnic_local *cp = dev->cnic_priv;
4967
4968         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4969                 return;
4970
4971         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4972                 cnic_shutdown_bnx2_rx_ring(dev);
4973         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4974                 struct cnic_local *cp = dev->cnic_priv;
4975                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4976                 u32 cid = cp->ethdev->iscsi_l2_cid;
4977                 union l5cm_specific_data l5_data;
4978                 int i;
4979
4980                 cnic_ring_ctl(dev, cid, cli, 0);
4981
4982                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4983
4984                 l5_data.phy_address.lo = cli;
4985                 l5_data.phy_address.hi = 0;
4986                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
4987                         cid, ETH_CONNECTION_TYPE, &l5_data);
4988                 i = 0;
4989                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
4990                        ++i < 10)
4991                         msleep(1);
4992
4993                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
4994                         netdev_err(dev->netdev,
4995                                 "iSCSI CLIENT_HALT did not complete\n");
4996                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
4997
4998                 memset(&l5_data, 0, sizeof(l5_data));
4999                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
5000                         cid, NONE_CONNECTION_TYPE, &l5_data);
5001                 msleep(10);
5002         }
5003         clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5004 }
5005
5006 static int cnic_register_netdev(struct cnic_dev *dev)
5007 {
5008         struct cnic_local *cp = dev->cnic_priv;
5009         struct cnic_eth_dev *ethdev = cp->ethdev;
5010         int err;
5011
5012         if (!ethdev)
5013                 return -ENODEV;
5014
5015         if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
5016                 return 0;
5017
5018         err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
5019         if (err)
5020                 netdev_err(dev->netdev, "register_cnic failed\n");
5021
5022         return err;
5023 }
5024
5025 static void cnic_unregister_netdev(struct cnic_dev *dev)
5026 {
5027         struct cnic_local *cp = dev->cnic_priv;
5028         struct cnic_eth_dev *ethdev = cp->ethdev;
5029
5030         if (!ethdev)
5031                 return;
5032
5033         ethdev->drv_unregister_cnic(dev->netdev);
5034 }
5035
5036 static int cnic_start_hw(struct cnic_dev *dev)
5037 {
5038         struct cnic_local *cp = dev->cnic_priv;
5039         struct cnic_eth_dev *ethdev = cp->ethdev;
5040         int err;
5041
5042         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
5043                 return -EALREADY;
5044
5045         dev->regview = ethdev->io_base;
5046         pci_dev_get(dev->pcidev);
5047         cp->func = PCI_FUNC(dev->pcidev->devfn);
5048         cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
5049         cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
5050
5051         err = cp->alloc_resc(dev);
5052         if (err) {
5053                 netdev_err(dev->netdev, "allocate resource failure\n");
5054                 goto err1;
5055         }
5056
5057         err = cp->start_hw(dev);
5058         if (err)
5059                 goto err1;
5060
5061         err = cnic_cm_open(dev);
5062         if (err)
5063                 goto err1;
5064
5065         set_bit(CNIC_F_CNIC_UP, &dev->flags);
5066
5067         cp->enable_int(dev);
5068
5069         return 0;
5070
5071 err1:
5072         cp->free_resc(dev);
5073         pci_dev_put(dev->pcidev);
5074         return err;
5075 }
5076
5077 static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
5078 {
5079         cnic_disable_bnx2_int_sync(dev);
5080
5081         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
5082         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
5083
5084         cnic_init_context(dev, KWQ_CID);
5085         cnic_init_context(dev, KCQ_CID);
5086
5087         cnic_setup_5709_context(dev, 0);
5088         cnic_free_irq(dev);
5089
5090         cnic_free_resc(dev);
5091 }
5092
5093
5094 static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
5095 {
5096         struct cnic_local *cp = dev->cnic_priv;
5097
5098         cnic_free_irq(dev);
5099         *cp->kcq1.hw_prod_idx_ptr = 0;
5100         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5101                 CSTORM_ISCSI_EQ_CONS_OFFSET(cp->pfid, 0), 0);
5102         CNIC_WR16(dev, cp->kcq1.io_addr, 0);
5103         cnic_free_resc(dev);
5104 }
5105
5106 static void cnic_stop_hw(struct cnic_dev *dev)
5107 {
5108         if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5109                 struct cnic_local *cp = dev->cnic_priv;
5110                 int i = 0;
5111
5112                 /* Need to wait for the ring shutdown event to complete
5113                  * before clearing the CNIC_UP flag.
5114                  */
5115                 while (cp->udev->uio_dev != -1 && i < 15) {
5116                         msleep(100);
5117                         i++;
5118                 }
5119                 cnic_shutdown_rings(dev);
5120                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
5121                 rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], NULL);
5122                 synchronize_rcu();
5123                 cnic_cm_shutdown(dev);
5124                 cp->stop_hw(dev);
5125                 pci_dev_put(dev->pcidev);
5126         }
5127 }
5128
5129 static void cnic_free_dev(struct cnic_dev *dev)
5130 {
5131         int i = 0;
5132
5133         while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
5134                 msleep(100);
5135                 i++;
5136         }
5137         if (atomic_read(&dev->ref_count) != 0)
5138                 netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
5139
5140         netdev_info(dev->netdev, "Removed CNIC device\n");
5141         dev_put(dev->netdev);
5142         kfree(dev);
5143 }
5144
5145 static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
5146                                        struct pci_dev *pdev)
5147 {
5148         struct cnic_dev *cdev;
5149         struct cnic_local *cp;
5150         int alloc_size;
5151
5152         alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
5153
5154         cdev = kzalloc(alloc_size , GFP_KERNEL);
5155         if (cdev == NULL) {
5156                 netdev_err(dev, "allocate dev struct failure\n");
5157                 return NULL;
5158         }
5159
5160         cdev->netdev = dev;
5161         cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
5162         cdev->register_device = cnic_register_device;
5163         cdev->unregister_device = cnic_unregister_device;
5164         cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
5165
5166         cp = cdev->cnic_priv;
5167         cp->dev = cdev;
5168         cp->l2_single_buf_size = 0x400;
5169         cp->l2_rx_ring_size = 3;
5170
5171         spin_lock_init(&cp->cnic_ulp_lock);
5172
5173         netdev_info(dev, "Added CNIC device\n");
5174
5175         return cdev;
5176 }
5177
5178 static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
5179 {
5180         struct pci_dev *pdev;
5181         struct cnic_dev *cdev;
5182         struct cnic_local *cp;
5183         struct cnic_eth_dev *ethdev = NULL;
5184         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5185
5186         probe = symbol_get(bnx2_cnic_probe);
5187         if (probe) {
5188                 ethdev = (*probe)(dev);
5189                 symbol_put(bnx2_cnic_probe);
5190         }
5191         if (!ethdev)
5192                 return NULL;
5193
5194         pdev = ethdev->pdev;
5195         if (!pdev)
5196                 return NULL;
5197
5198         dev_hold(dev);
5199         pci_dev_get(pdev);
5200         if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
5201              pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
5202             (pdev->revision < 0x10)) {
5203                 pci_dev_put(pdev);
5204                 goto cnic_err;
5205         }
5206         pci_dev_put(pdev);
5207
5208         cdev = cnic_alloc_dev(dev, pdev);
5209         if (cdev == NULL)
5210                 goto cnic_err;
5211
5212         set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
5213         cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
5214
5215         cp = cdev->cnic_priv;
5216         cp->ethdev = ethdev;
5217         cdev->pcidev = pdev;
5218         cp->chip_id = ethdev->chip_id;
5219
5220         cp->cnic_ops = &cnic_bnx2_ops;
5221         cp->start_hw = cnic_start_bnx2_hw;
5222         cp->stop_hw = cnic_stop_bnx2_hw;
5223         cp->setup_pgtbl = cnic_setup_page_tbl;
5224         cp->alloc_resc = cnic_alloc_bnx2_resc;
5225         cp->free_resc = cnic_free_resc;
5226         cp->start_cm = cnic_cm_init_bnx2_hw;
5227         cp->stop_cm = cnic_cm_stop_bnx2_hw;
5228         cp->enable_int = cnic_enable_bnx2_int;
5229         cp->disable_int_sync = cnic_disable_bnx2_int_sync;
5230         cp->close_conn = cnic_close_bnx2_conn;
5231         cp->next_idx = cnic_bnx2_next_idx;
5232         cp->hw_idx = cnic_bnx2_hw_idx;
5233         return cdev;
5234
5235 cnic_err:
5236         dev_put(dev);
5237         return NULL;
5238 }
5239
5240 static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
5241 {
5242         struct pci_dev *pdev;
5243         struct cnic_dev *cdev;
5244         struct cnic_local *cp;
5245         struct cnic_eth_dev *ethdev = NULL;
5246         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5247
5248         probe = symbol_get(bnx2x_cnic_probe);
5249         if (probe) {
5250                 ethdev = (*probe)(dev);
5251                 symbol_put(bnx2x_cnic_probe);
5252         }
5253         if (!ethdev)
5254                 return NULL;
5255
5256         pdev = ethdev->pdev;
5257         if (!pdev)
5258                 return NULL;
5259
5260         dev_hold(dev);
5261         cdev = cnic_alloc_dev(dev, pdev);
5262         if (cdev == NULL) {
5263                 dev_put(dev);
5264                 return NULL;
5265         }
5266
5267         set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
5268         cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
5269
5270         cp = cdev->cnic_priv;
5271         cp->ethdev = ethdev;
5272         cdev->pcidev = pdev;
5273         cp->chip_id = ethdev->chip_id;
5274
5275         if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
5276                 cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5277         if (BNX2X_CHIP_IS_E2(cp->chip_id) &&
5278             !(ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
5279                 cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
5280
5281         memcpy(cdev->mac_addr, ethdev->iscsi_mac, 6);
5282
5283         cp->cnic_ops = &cnic_bnx2x_ops;
5284         cp->start_hw = cnic_start_bnx2x_hw;
5285         cp->stop_hw = cnic_stop_bnx2x_hw;
5286         cp->setup_pgtbl = cnic_setup_page_tbl_le;
5287         cp->alloc_resc = cnic_alloc_bnx2x_resc;
5288         cp->free_resc = cnic_free_resc;
5289         cp->start_cm = cnic_cm_init_bnx2x_hw;
5290         cp->stop_cm = cnic_cm_stop_bnx2x_hw;
5291         cp->enable_int = cnic_enable_bnx2x_int;
5292         cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
5293         if (BNX2X_CHIP_IS_E2(cp->chip_id))
5294                 cp->ack_int = cnic_ack_bnx2x_e2_msix;
5295         else
5296                 cp->ack_int = cnic_ack_bnx2x_msix;
5297         cp->close_conn = cnic_close_bnx2x_conn;
5298         cp->next_idx = cnic_bnx2x_next_idx;
5299         cp->hw_idx = cnic_bnx2x_hw_idx;
5300         return cdev;
5301 }
5302
5303 static struct cnic_dev *is_cnic_dev(struct net_device *dev)
5304 {
5305         struct ethtool_drvinfo drvinfo;
5306         struct cnic_dev *cdev = NULL;
5307
5308         if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
5309                 memset(&drvinfo, 0, sizeof(drvinfo));
5310                 dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
5311
5312                 if (!strcmp(drvinfo.driver, "bnx2"))
5313                         cdev = init_bnx2_cnic(dev);
5314                 if (!strcmp(drvinfo.driver, "bnx2x"))
5315                         cdev = init_bnx2x_cnic(dev);
5316                 if (cdev) {
5317                         write_lock(&cnic_dev_lock);
5318                         list_add(&cdev->list, &cnic_dev_list);
5319                         write_unlock(&cnic_dev_lock);
5320                 }
5321         }
5322         return cdev;
5323 }
5324
5325 /**
5326  * netdev event handler
5327  */
5328 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
5329                                                          void *ptr)
5330 {
5331         struct net_device *netdev = ptr;
5332         struct cnic_dev *dev;
5333         int if_type;
5334         int new_dev = 0;
5335
5336         dev = cnic_from_netdev(netdev);
5337
5338         if (!dev && (event == NETDEV_REGISTER || event == NETDEV_UP)) {
5339                 /* Check for the hot-plug device */
5340                 dev = is_cnic_dev(netdev);
5341                 if (dev) {
5342                         new_dev = 1;
5343                         cnic_hold(dev);
5344                 }
5345         }
5346         if (dev) {
5347                 struct cnic_local *cp = dev->cnic_priv;
5348
5349                 if (new_dev)
5350                         cnic_ulp_init(dev);
5351                 else if (event == NETDEV_UNREGISTER)
5352                         cnic_ulp_exit(dev);
5353
5354                 if (event == NETDEV_UP) {
5355                         if (cnic_register_netdev(dev) != 0) {
5356                                 cnic_put(dev);
5357                                 goto done;
5358                         }
5359                         if (!cnic_start_hw(dev))
5360                                 cnic_ulp_start(dev);
5361                 }
5362
5363                 rcu_read_lock();
5364                 for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
5365                         struct cnic_ulp_ops *ulp_ops;
5366                         void *ctx;
5367
5368                         ulp_ops = rcu_dereference(cp->ulp_ops[if_type]);
5369                         if (!ulp_ops || !ulp_ops->indicate_netevent)
5370                                 continue;
5371
5372                         ctx = cp->ulp_handle[if_type];
5373
5374                         ulp_ops->indicate_netevent(ctx, event);
5375                 }
5376                 rcu_read_unlock();
5377
5378                 if (event == NETDEV_GOING_DOWN) {
5379                         cnic_ulp_stop(dev);
5380                         cnic_stop_hw(dev);
5381                         cnic_unregister_netdev(dev);
5382                 } else if (event == NETDEV_UNREGISTER) {
5383                         write_lock(&cnic_dev_lock);
5384                         list_del_init(&dev->list);
5385                         write_unlock(&cnic_dev_lock);
5386
5387                         cnic_put(dev);
5388                         cnic_free_dev(dev);
5389                         goto done;
5390                 }
5391                 cnic_put(dev);
5392         }
5393 done:
5394         return NOTIFY_DONE;
5395 }
5396
5397 static struct notifier_block cnic_netdev_notifier = {
5398         .notifier_call = cnic_netdev_event
5399 };
5400
5401 static void cnic_release(void)
5402 {
5403         struct cnic_dev *dev;
5404         struct cnic_uio_dev *udev;
5405
5406         while (!list_empty(&cnic_dev_list)) {
5407                 dev = list_entry(cnic_dev_list.next, struct cnic_dev, list);
5408                 if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5409                         cnic_ulp_stop(dev);
5410                         cnic_stop_hw(dev);
5411                 }
5412
5413                 cnic_ulp_exit(dev);
5414                 cnic_unregister_netdev(dev);
5415                 list_del_init(&dev->list);
5416                 cnic_free_dev(dev);
5417         }
5418         while (!list_empty(&cnic_udev_list)) {
5419                 udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
5420                                   list);
5421                 cnic_free_uio(udev);
5422         }
5423 }
5424
5425 static int __init cnic_init(void)
5426 {
5427         int rc = 0;
5428
5429         pr_info("%s", version);
5430
5431         rc = register_netdevice_notifier(&cnic_netdev_notifier);
5432         if (rc) {
5433                 cnic_release();
5434                 return rc;
5435         }
5436
5437         cnic_wq = create_singlethread_workqueue("cnic_wq");
5438         if (!cnic_wq) {
5439                 cnic_release();
5440                 unregister_netdevice_notifier(&cnic_netdev_notifier);
5441                 return -ENOMEM;
5442         }
5443
5444         return 0;
5445 }
5446
5447 static void __exit cnic_exit(void)
5448 {
5449         unregister_netdevice_notifier(&cnic_netdev_notifier);
5450         cnic_release();
5451         destroy_workqueue(cnic_wq);
5452 }
5453
5454 module_init(cnic_init);
5455 module_exit(cnic_exit);