drivers/net/ethernet/broadcom/cnic.c

   1 /* cnic.c: Broadcom CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2012 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 #include <linux/random.h>
  32 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  33 #define BCM_VLAN 1
  34 #endif
  35 #include <net/ip.h>
  36 #include <net/tcp.h>
  37 #include <net/route.h>
  38 #include <net/ipv6.h>
  39 #include <net/ip6_route.h>
  40 #include <net/ip6_checksum.h>
  41 #include <scsi/iscsi_if.h>
  42
  43 #include "cnic_if.h"
  44 #include "bnx2.h"
  45 #include "bnx2x/bnx2x_reg.h"
  46 #include "bnx2x/bnx2x_fw_defs.h"
  47 #include "bnx2x/bnx2x_hsi.h"
  48 #include "../../../scsi/bnx2i/57xx_iscsi_constants.h"
  49 #include "../../../scsi/bnx2i/57xx_iscsi_hsi.h"
  50 #include "../../../scsi/bnx2fc/bnx2fc_constants.h"
  51 #include "cnic.h"
  52 #include "cnic_defs.h"
  53
  54 #define DRV_MODULE_NAME         "cnic"
  55
  56 static char version[] =
  57         "Broadcom NetXtreme II CNIC Driver " DRV_MODULE_NAME " v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
  58
  59 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
  60               "Chen (zongxi@broadcom.com");
  61 MODULE_DESCRIPTION("Broadcom NetXtreme II CNIC Driver");
  62 MODULE_LICENSE("GPL");
  63 MODULE_VERSION(CNIC_MODULE_VERSION);
  64
  65 /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
  66 static LIST_HEAD(cnic_dev_list);
  67 static LIST_HEAD(cnic_udev_list);
  68 static DEFINE_RWLOCK(cnic_dev_lock);
  69 static DEFINE_MUTEX(cnic_lock);
  70
  71 static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
  72
  73 /* helper function, assuming cnic_lock is held */
  74 static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
  75 {
  76         return rcu_dereference_protected(cnic_ulp_tbl[type],
  77                                          lockdep_is_held(&cnic_lock));
  78 }
  79
  80 static int cnic_service_bnx2(void *, void *);
  81 static int cnic_service_bnx2x(void *, void *);
  82 static int cnic_ctl(void *, struct cnic_ctl_info *);
  83
  84 static struct cnic_ops cnic_bnx2_ops = {
  85         .cnic_owner     = THIS_MODULE,
  86         .cnic_handler   = cnic_service_bnx2,
  87         .cnic_ctl       = cnic_ctl,
  88 };
  89
  90 static struct cnic_ops cnic_bnx2x_ops = {
  91         .cnic_owner     = THIS_MODULE,
  92         .cnic_handler   = cnic_service_bnx2x,
  93         .cnic_ctl       = cnic_ctl,
  94 };
  95
  96 static struct workqueue_struct *cnic_wq;
  97
  98 static void cnic_shutdown_rings(struct cnic_dev *);
  99 static void cnic_init_rings(struct cnic_dev *);
 100 static int cnic_cm_set_pg(struct cnic_sock *);
 101
 102 static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 103 {
 104         struct cnic_uio_dev *udev = uinfo->priv;
 105         struct cnic_dev *dev;
 106
 107         if (!capable(CAP_NET_ADMIN))
 108                 return -EPERM;
 109
 110         if (udev->uio_dev != -1)
 111                 return -EBUSY;
 112
 113         rtnl_lock();
 114         dev = udev->dev;
 115
 116         if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
 117                 rtnl_unlock();
 118                 return -ENODEV;
 119         }
 120
 121         udev->uio_dev = iminor(inode);
 122
 123         cnic_shutdown_rings(dev);
 124         cnic_init_rings(dev);
 125         rtnl_unlock();
 126
 127         return 0;
 128 }
 129
 130 static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 131 {
 132         struct cnic_uio_dev *udev = uinfo->priv;
 133
 134         udev->uio_dev = -1;
 135         return 0;
 136 }
 137
 138 static inline void cnic_hold(struct cnic_dev *dev)
 139 {
 140         atomic_inc(&dev->ref_count);
 141 }
 142
 143 static inline void cnic_put(struct cnic_dev *dev)
 144 {
 145         atomic_dec(&dev->ref_count);
 146 }
 147
 148 static inline void csk_hold(struct cnic_sock *csk)
 149 {
 150         atomic_inc(&csk->ref_count);
 151 }
 152
 153 static inline void csk_put(struct cnic_sock *csk)
 154 {
 155         atomic_dec(&csk->ref_count);
 156 }
 157
 158 static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
 159 {
 160         struct cnic_dev *cdev;
 161
 162         read_lock(&cnic_dev_lock);
 163         list_for_each_entry(cdev, &cnic_dev_list, list) {
 164                 if (netdev == cdev->netdev) {
 165                         cnic_hold(cdev);
 166                         read_unlock(&cnic_dev_lock);
 167                         return cdev;
 168                 }
 169         }
 170         read_unlock(&cnic_dev_lock);
 171         return NULL;
 172 }
 173
 174 static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
 175 {
 176         atomic_inc(&ulp_ops->ref_count);
 177 }
 178
 179 static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
 180 {
 181         atomic_dec(&ulp_ops->ref_count);
 182 }
 183
 184 static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
 185 {
 186         struct cnic_local *cp = dev->cnic_priv;
 187         struct cnic_eth_dev *ethdev = cp->ethdev;
 188         struct drv_ctl_info info;
 189         struct drv_ctl_io *io = &info.data.io;
 190
 191         info.cmd = DRV_CTL_CTX_WR_CMD;
 192         io->cid_addr = cid_addr;
 193         io->offset = off;
 194         io->data = val;
 195         ethdev->drv_ctl(dev->netdev, &info);
 196 }
 197
 198 static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
 199 {
 200         struct cnic_local *cp = dev->cnic_priv;
 201         struct cnic_eth_dev *ethdev = cp->ethdev;
 202         struct drv_ctl_info info;
 203         struct drv_ctl_io *io = &info.data.io;
 204
 205         info.cmd = DRV_CTL_CTXTBL_WR_CMD;
 206         io->offset = off;
 207         io->dma_addr = addr;
 208         ethdev->drv_ctl(dev->netdev, &info);
 209 }
 210
 211 static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
 212 {
 213         struct cnic_local *cp = dev->cnic_priv;
 214         struct cnic_eth_dev *ethdev = cp->ethdev;
 215         struct drv_ctl_info info;
 216         struct drv_ctl_l2_ring *ring = &info.data.ring;
 217
 218         if (start)
 219                 info.cmd = DRV_CTL_START_L2_CMD;
 220         else
 221                 info.cmd = DRV_CTL_STOP_L2_CMD;
 222
 223         ring->cid = cid;
 224         ring->client_id = cl_id;
 225         ethdev->drv_ctl(dev->netdev, &info);
 226 }
 227
 228 static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
 229 {
 230         struct cnic_local *cp = dev->cnic_priv;
 231         struct cnic_eth_dev *ethdev = cp->ethdev;
 232         struct drv_ctl_info info;
 233         struct drv_ctl_io *io = &info.data.io;
 234
 235         info.cmd = DRV_CTL_IO_WR_CMD;
 236         io->offset = off;
 237         io->data = val;
 238         ethdev->drv_ctl(dev->netdev, &info);
 239 }
 240
 241 static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
 242 {
 243         struct cnic_local *cp = dev->cnic_priv;
 244         struct cnic_eth_dev *ethdev = cp->ethdev;
 245         struct drv_ctl_info info;
 246         struct drv_ctl_io *io = &info.data.io;
 247
 248         info.cmd = DRV_CTL_IO_RD_CMD;
 249         io->offset = off;
 250         ethdev->drv_ctl(dev->netdev, &info);
 251         return io->data;
 252 }
 253
 254 static void cnic_ulp_ctl(struct cnic_dev *dev, int ulp_type, bool reg)
 255 {
 256         struct cnic_local *cp = dev->cnic_priv;
 257         struct cnic_eth_dev *ethdev = cp->ethdev;
 258         struct drv_ctl_info info;
 259         struct fcoe_capabilities *fcoe_cap =
 260                 &info.data.register_data.fcoe_features;
 261
 262         if (reg) {
 263                 info.cmd = DRV_CTL_ULP_REGISTER_CMD;
 264                 if (ulp_type == CNIC_ULP_FCOE && dev->fcoe_cap)
 265                         memcpy(fcoe_cap, dev->fcoe_cap, sizeof(*fcoe_cap));
 266         } else {
 267                 info.cmd = DRV_CTL_ULP_UNREGISTER_CMD;
 268         }
 269
 270         info.data.ulp_type = ulp_type;
 271         ethdev->drv_ctl(dev->netdev, &info);
 272 }
 273
 274 static int cnic_in_use(struct cnic_sock *csk)
 275 {
 276         return test_bit(SK_F_INUSE, &csk->flags);
 277 }
 278
 279 static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
 280 {
 281         struct cnic_local *cp = dev->cnic_priv;
 282         struct cnic_eth_dev *ethdev = cp->ethdev;
 283         struct drv_ctl_info info;
 284
 285         info.cmd = cmd;
 286         info.data.credit.credit_count = count;
 287         ethdev->drv_ctl(dev->netdev, &info);
 288 }
 289
 290 static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
 291 {
 292         u32 i;
 293
 294         if (!cp->ctx_tbl)
 295                 return -EINVAL;
 296
 297         for (i = 0; i < cp->max_cid_space; i++) {
 298                 if (cp->ctx_tbl[i].cid == cid) {
 299                         *l5_cid = i;
 300                         return 0;
 301                 }
 302         }
 303         return -EINVAL;
 304 }
 305
 306 static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
 307                            struct cnic_sock *csk)
 308 {
 309         struct iscsi_path path_req;
 310         char *buf = NULL;
 311         u16 len = 0;
 312         u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 313         struct cnic_ulp_ops *ulp_ops;
 314         struct cnic_uio_dev *udev = cp->udev;
 315         int rc = 0, retry = 0;
 316
 317         if (!udev || udev->uio_dev == -1)
 318                 return -ENODEV;
 319
 320         if (csk) {
 321                 len = sizeof(path_req);
 322                 buf = (char *) &path_req;
 323                 memset(&path_req, 0, len);
 324
 325                 msg_type = ISCSI_KEVENT_PATH_REQ;
 326                 path_req.handle = (u64) csk->l5_cid;
 327                 if (test_bit(SK_F_IPV6, &csk->flags)) {
 328                         memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
 329                                sizeof(struct in6_addr));
 330                         path_req.ip_addr_len = 16;
 331                 } else {
 332                         memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
 333                                sizeof(struct in_addr));
 334                         path_req.ip_addr_len = 4;
 335                 }
 336                 path_req.vlan_id = csk->vlan_id;
 337                 path_req.pmtu = csk->mtu;
 338         }
 339
 340         while (retry < 3) {
 341                 rc = 0;
 342                 rcu_read_lock();
 343                 ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
 344                 if (ulp_ops)
 345                         rc = ulp_ops->iscsi_nl_send_msg(
 346                                 cp->ulp_handle[CNIC_ULP_ISCSI],
 347                                 msg_type, buf, len);
 348                 rcu_read_unlock();
 349                 if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
 350                         break;
 351
 352                 msleep(100);
 353                 retry++;
 354         }
 355         return rc;
 356 }
 357
 358 static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
 359
 360 static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 361                                   char *buf, u16 len)
 362 {
 363         int rc = -EINVAL;
 364
 365         switch (msg_type) {
 366         case ISCSI_UEVENT_PATH_UPDATE: {
 367                 struct cnic_local *cp;
 368                 u32 l5_cid;
 369                 struct cnic_sock *csk;
 370                 struct iscsi_path *path_resp;
 371
 372                 if (len < sizeof(*path_resp))
 373                         break;
 374
 375                 path_resp = (struct iscsi_path *) buf;
 376                 cp = dev->cnic_priv;
 377                 l5_cid = (u32) path_resp->handle;
 378                 if (l5_cid >= MAX_CM_SK_TBL_SZ)
 379                         break;
 380
 381                 rcu_read_lock();
 382                 if (!rcu_dereference(cp->ulp_ops[CNIC_ULP_L4])) {
 383                         rc = -ENODEV;
 384                         rcu_read_unlock();
 385                         break;
 386                 }
 387                 csk = &cp->csk_tbl[l5_cid];
 388                 csk_hold(csk);
 389                 if (cnic_in_use(csk) &&
 390                     test_bit(SK_F_CONNECT_START, &csk->flags)) {
 391
 392                         csk->vlan_id = path_resp->vlan_id;
 393
 394                         memcpy(csk->ha, path_resp->mac_addr, 6);
 395                         if (test_bit(SK_F_IPV6, &csk->flags))
 396                                 memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 397                                        sizeof(struct in6_addr));
 398                         else
 399                                 memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
 400                                        sizeof(struct in_addr));
 401
 402                         if (is_valid_ether_addr(csk->ha)) {
 403                                 cnic_cm_set_pg(csk);
 404                         } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
 405                                 !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 406
 407                                 cnic_cm_upcall(cp, csk,
 408                                         L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
 409                                 clear_bit(SK_F_CONNECT_START, &csk->flags);
 410                         }
 411                 }
 412                 csk_put(csk);
 413                 rcu_read_unlock();
 414                 rc = 0;
 415         }
 416         }
 417
 418         return rc;
 419 }
 420
 421 static int cnic_offld_prep(struct cnic_sock *csk)
 422 {
 423         if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 424                 return 0;
 425
 426         if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
 427                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 428                 return 0;
 429         }
 430
 431         return 1;
 432 }
 433
 434 static int cnic_close_prep(struct cnic_sock *csk)
 435 {
 436         clear_bit(SK_F_CONNECT_START, &csk->flags);
 437         smp_mb__after_clear_bit();
 438
 439         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 440                 while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 441                         msleep(1);
 442
 443                 return 1;
 444         }
 445         return 0;
 446 }
 447
 448 static int cnic_abort_prep(struct cnic_sock *csk)
 449 {
 450         clear_bit(SK_F_CONNECT_START, &csk->flags);
 451         smp_mb__after_clear_bit();
 452
 453         while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 454                 msleep(1);
 455
 456         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 457                 csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
 458                 return 1;
 459         }
 460
 461         return 0;
 462 }
 463
 464 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 465 {
 466         struct cnic_dev *dev;
 467
 468         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 469                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 470                 return -EINVAL;
 471         }
 472         mutex_lock(&cnic_lock);
 473         if (cnic_ulp_tbl_prot(ulp_type)) {
 474                 pr_err("%s: Type %d has already been registered\n",
 475                        __func__, ulp_type);
 476                 mutex_unlock(&cnic_lock);
 477                 return -EBUSY;
 478         }
 479
 480         read_lock(&cnic_dev_lock);
 481         list_for_each_entry(dev, &cnic_dev_list, list) {
 482                 struct cnic_local *cp = dev->cnic_priv;
 483
 484                 clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
 485         }
 486         read_unlock(&cnic_dev_lock);
 487
 488         atomic_set(&ulp_ops->ref_count, 0);
 489         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
 490         mutex_unlock(&cnic_lock);
 491
 492         /* Prevent race conditions with netdev_event */
 493         rtnl_lock();
 494         list_for_each_entry(dev, &cnic_dev_list, list) {
 495                 struct cnic_local *cp = dev->cnic_priv;
 496
 497                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 498                         ulp_ops->cnic_init(dev);
 499         }
 500         rtnl_unlock();
 501
 502         return 0;
 503 }
 504
 505 int cnic_unregister_driver(int ulp_type)
 506 {
 507         struct cnic_dev *dev;
 508         struct cnic_ulp_ops *ulp_ops;
 509         int i = 0;
 510
 511         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 512                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 513                 return -EINVAL;
 514         }
 515         mutex_lock(&cnic_lock);
 516         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 517         if (!ulp_ops) {
 518                 pr_err("%s: Type %d has not been registered\n",
 519                        __func__, ulp_type);
 520                 goto out_unlock;
 521         }
 522         read_lock(&cnic_dev_lock);
 523         list_for_each_entry(dev, &cnic_dev_list, list) {
 524                 struct cnic_local *cp = dev->cnic_priv;
 525
 526                 if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 527                         pr_err("%s: Type %d still has devices registered\n",
 528                                __func__, ulp_type);
 529                         read_unlock(&cnic_dev_lock);
 530                         goto out_unlock;
 531                 }
 532         }
 533         read_unlock(&cnic_dev_lock);
 534
 535         RCU_INIT_POINTER(cnic_ulp_tbl[ulp_type], NULL);
 536
 537         mutex_unlock(&cnic_lock);
 538         synchronize_rcu();
 539         while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
 540                 msleep(100);
 541                 i++;
 542         }
 543
 544         if (atomic_read(&ulp_ops->ref_count) != 0)
 545                 pr_warn("%s: Failed waiting for ref count to go to zero\n",
 546                         __func__);
 547         return 0;
 548
 549 out_unlock:
 550         mutex_unlock(&cnic_lock);
 551         return -EINVAL;
 552 }
 553
 554 static int cnic_start_hw(struct cnic_dev *);
 555 static void cnic_stop_hw(struct cnic_dev *);
 556
 557 static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
 558                                 void *ulp_ctx)
 559 {
 560         struct cnic_local *cp = dev->cnic_priv;
 561         struct cnic_ulp_ops *ulp_ops;
 562
 563         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 564                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 565                 return -EINVAL;
 566         }
 567         mutex_lock(&cnic_lock);
 568         if (cnic_ulp_tbl_prot(ulp_type) == NULL) {
 569                 pr_err("%s: Driver with type %d has not been registered\n",
 570                        __func__, ulp_type);
 571                 mutex_unlock(&cnic_lock);
 572                 return -EAGAIN;
 573         }
 574         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 575                 pr_err("%s: Type %d has already been registered to this device\n",
 576                        __func__, ulp_type);
 577                 mutex_unlock(&cnic_lock);
 578                 return -EBUSY;
 579         }
 580
 581         clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
 582         cp->ulp_handle[ulp_type] = ulp_ctx;
 583         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 584         rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
 585         cnic_hold(dev);
 586
 587         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
 588                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
 589                         ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
 590
 591         mutex_unlock(&cnic_lock);
 592
 593         cnic_ulp_ctl(dev, ulp_type, true);
 594
 595         return 0;
 596
 597 }
 598 EXPORT_SYMBOL(cnic_register_driver);
 599
 600 static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
 601 {
 602         struct cnic_local *cp = dev->cnic_priv;
 603         int i = 0;
 604
 605         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 606                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 607                 return -EINVAL;
 608         }
 609         mutex_lock(&cnic_lock);
 610         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 611                 RCU_INIT_POINTER(cp->ulp_ops[ulp_type], NULL);
 612                 cnic_put(dev);
 613         } else {
 614                 pr_err("%s: device not registered to this ulp type %d\n",
 615                        __func__, ulp_type);
 616                 mutex_unlock(&cnic_lock);
 617                 return -EINVAL;
 618         }
 619         mutex_unlock(&cnic_lock);
 620
 621         if (ulp_type == CNIC_ULP_ISCSI)
 622                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 623         else if (ulp_type == CNIC_ULP_FCOE)
 624                 dev->fcoe_cap = NULL;
 625
 626         synchronize_rcu();
 627
 628         while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
 629                i < 20) {
 630                 msleep(100);
 631                 i++;
 632         }
 633         if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
 634                 netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
 635
 636         cnic_ulp_ctl(dev, ulp_type, false);
 637
 638         return 0;
 639 }
 640 EXPORT_SYMBOL(cnic_unregister_driver);
 641
 642 static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id,
 643                             u32 next)
 644 {
 645         id_tbl->start = start_id;
 646         id_tbl->max = size;
 647         id_tbl->next = next;
 648         spin_lock_init(&id_tbl->lock);
 649         id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL);
 650         if (!id_tbl->table)
 651                 return -ENOMEM;
 652
 653         return 0;
 654 }
 655
 656 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 657 {
 658         kfree(id_tbl->table);
 659         id_tbl->table = NULL;
 660 }
 661
 662 static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
 663 {
 664         int ret = -1;
 665
 666         id -= id_tbl->start;
 667         if (id >= id_tbl->max)
 668                 return ret;
 669
 670         spin_lock(&id_tbl->lock);
 671         if (!test_bit(id, id_tbl->table)) {
 672                 set_bit(id, id_tbl->table);
 673                 ret = 0;
 674         }
 675         spin_unlock(&id_tbl->lock);
 676         return ret;
 677 }
 678
 679 /* Returns -1 if not successful */
 680 static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
 681 {
 682         u32 id;
 683
 684         spin_lock(&id_tbl->lock);
 685         id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
 686         if (id >= id_tbl->max) {
 687                 id = -1;
 688                 if (id_tbl->next != 0) {
 689                         id = find_first_zero_bit(id_tbl->table, id_tbl->next);
 690                         if (id >= id_tbl->next)
 691                                 id = -1;
 692                 }
 693         }
 694
 695         if (id < id_tbl->max) {
 696                 set_bit(id, id_tbl->table);
 697                 id_tbl->next = (id + 1) & (id_tbl->max - 1);
 698                 id += id_tbl->start;
 699         }
 700
 701         spin_unlock(&id_tbl->lock);
 702
 703         return id;
 704 }
 705
 706 static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
 707 {
 708         if (id == -1)
 709                 return;
 710
 711         id -= id_tbl->start;
 712         if (id >= id_tbl->max)
 713                 return;
 714
 715         clear_bit(id, id_tbl->table);
 716 }
 717
 718 static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
 719 {
 720         int i;
 721
 722         if (!dma->pg_arr)
 723                 return;
 724
 725         for (i = 0; i < dma->num_pages; i++) {
 726                 if (dma->pg_arr[i]) {
 727                         dma_free_coherent(&dev->pcidev->dev, BNX2_PAGE_SIZE,
 728                                           dma->pg_arr[i], dma->pg_map_arr[i]);
 729                         dma->pg_arr[i] = NULL;
 730                 }
 731         }
 732         if (dma->pgtbl) {
 733                 dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 734                                   dma->pgtbl, dma->pgtbl_map);
 735                 dma->pgtbl = NULL;
 736         }
 737         kfree(dma->pg_arr);
 738         dma->pg_arr = NULL;
 739         dma->num_pages = 0;
 740 }
 741
 742 static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
 743 {
 744         int i;
 745         __le32 *page_table = (__le32 *) dma->pgtbl;
 746
 747         for (i = 0; i < dma->num_pages; i++) {
 748                 /* Each entry needs to be in big endian format. */
 749                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 750                 page_table++;
 751                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 752                 page_table++;
 753         }
 754 }
 755
 756 static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
 757 {
 758         int i;
 759         __le32 *page_table = (__le32 *) dma->pgtbl;
 760
 761         for (i = 0; i < dma->num_pages; i++) {
 762                 /* Each entry needs to be in little endian format. */
 763                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 764                 page_table++;
 765                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 766                 page_table++;
 767         }
 768 }
 769
 770 static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
 771                           int pages, int use_pg_tbl)
 772 {
 773         int i, size;
 774         struct cnic_local *cp = dev->cnic_priv;
 775
 776         size = pages * (sizeof(void *) + sizeof(dma_addr_t));
 777         dma->pg_arr = kzalloc(size, GFP_ATOMIC);
 778         if (dma->pg_arr == NULL)
 779                 return -ENOMEM;
 780
 781         dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
 782         dma->num_pages = pages;
 783
 784         for (i = 0; i < pages; i++) {
 785                 dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
 786                                                     BNX2_PAGE_SIZE,
 787                                                     &dma->pg_map_arr[i],
 788                                                     GFP_ATOMIC);
 789                 if (dma->pg_arr[i] == NULL)
 790                         goto error;
 791         }
 792         if (!use_pg_tbl)
 793                 return 0;
 794
 795         dma->pgtbl_size = ((pages * 8) + BNX2_PAGE_SIZE - 1) &
 796                           ~(BNX2_PAGE_SIZE - 1);
 797         dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 798                                         &dma->pgtbl_map, GFP_ATOMIC);
 799         if (dma->pgtbl == NULL)
 800                 goto error;
 801
 802         cp->setup_pgtbl(dev, dma);
 803
 804         return 0;
 805
 806 error:
 807         cnic_free_dma(dev, dma);
 808         return -ENOMEM;
 809 }
 810
 811 static void cnic_free_context(struct cnic_dev *dev)
 812 {
 813         struct cnic_local *cp = dev->cnic_priv;
 814         int i;
 815
 816         for (i = 0; i < cp->ctx_blks; i++) {
 817                 if (cp->ctx_arr[i].ctx) {
 818                         dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
 819                                           cp->ctx_arr[i].ctx,
 820                                           cp->ctx_arr[i].mapping);
 821                         cp->ctx_arr[i].ctx = NULL;
 822                 }
 823         }
 824 }
 825
 826 static void __cnic_free_uio_rings(struct cnic_uio_dev *udev)
 827 {
 828         if (udev->l2_buf) {
 829                 dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 830                                   udev->l2_buf, udev->l2_buf_map);
 831                 udev->l2_buf = NULL;
 832         }
 833
 834         if (udev->l2_ring) {
 835                 dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 836                                   udev->l2_ring, udev->l2_ring_map);
 837                 udev->l2_ring = NULL;
 838         }
 839
 840 }
 841
 842 static void __cnic_free_uio(struct cnic_uio_dev *udev)
 843 {
 844         uio_unregister_device(&udev->cnic_uinfo);
 845
 846         __cnic_free_uio_rings(udev);
 847
 848         pci_dev_put(udev->pdev);
 849         kfree(udev);
 850 }
 851
 852 static void cnic_free_uio(struct cnic_uio_dev *udev)
 853 {
 854         if (!udev)
 855                 return;
 856
 857         write_lock(&cnic_dev_lock);
 858         list_del_init(&udev->list);
 859         write_unlock(&cnic_dev_lock);
 860         __cnic_free_uio(udev);
 861 }
 862
 863 static void cnic_free_resc(struct cnic_dev *dev)
 864 {
 865         struct cnic_local *cp = dev->cnic_priv;
 866         struct cnic_uio_dev *udev = cp->udev;
 867
 868         if (udev) {
 869                 udev->dev = NULL;
 870                 cp->udev = NULL;
 871                 if (udev->uio_dev == -1)
 872                         __cnic_free_uio_rings(udev);
 873         }
 874
 875         cnic_free_context(dev);
 876         kfree(cp->ctx_arr);
 877         cp->ctx_arr = NULL;
 878         cp->ctx_blks = 0;
 879
 880         cnic_free_dma(dev, &cp->gbl_buf_info);
 881         cnic_free_dma(dev, &cp->kwq_info);
 882         cnic_free_dma(dev, &cp->kwq_16_data_info);
 883         cnic_free_dma(dev, &cp->kcq2.dma);
 884         cnic_free_dma(dev, &cp->kcq1.dma);
 885         kfree(cp->iscsi_tbl);
 886         cp->iscsi_tbl = NULL;
 887         kfree(cp->ctx_tbl);
 888         cp->ctx_tbl = NULL;
 889
 890         cnic_free_id_tbl(&cp->fcoe_cid_tbl);
 891         cnic_free_id_tbl(&cp->cid_tbl);
 892 }
 893
 894 static int cnic_alloc_context(struct cnic_dev *dev)
 895 {
 896         struct cnic_local *cp = dev->cnic_priv;
 897
 898         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
 899                 int i, k, arr_size;
 900
 901                 cp->ctx_blk_size = BNX2_PAGE_SIZE;
 902                 cp->cids_per_blk = BNX2_PAGE_SIZE / 128;
 903                 arr_size = BNX2_MAX_CID / cp->cids_per_blk *
 904                            sizeof(struct cnic_ctx);
 905                 cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
 906                 if (cp->ctx_arr == NULL)
 907                         return -ENOMEM;
 908
 909                 k = 0;
 910                 for (i = 0; i < 2; i++) {
 911                         u32 j, reg, off, lo, hi;
 912
 913                         if (i == 0)
 914                                 off = BNX2_PG_CTX_MAP;
 915                         else
 916                                 off = BNX2_ISCSI_CTX_MAP;
 917
 918                         reg = cnic_reg_rd_ind(dev, off);
 919                         lo = reg >> 16;
 920                         hi = reg & 0xffff;
 921                         for (j = lo; j < hi; j += cp->cids_per_blk, k++)
 922                                 cp->ctx_arr[k].cid = j;
 923                 }
 924
 925                 cp->ctx_blks = k;
 926                 if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
 927                         cp->ctx_blks = 0;
 928                         return -ENOMEM;
 929                 }
 930
 931                 for (i = 0; i < cp->ctx_blks; i++) {
 932                         cp->ctx_arr[i].ctx =
 933                                 dma_alloc_coherent(&dev->pcidev->dev,
 934                                                    BNX2_PAGE_SIZE,
 935                                                    &cp->ctx_arr[i].mapping,
 936                                                    GFP_KERNEL);
 937                         if (cp->ctx_arr[i].ctx == NULL)
 938                                 return -ENOMEM;
 939                 }
 940         }
 941         return 0;
 942 }
 943
 944 static u16 cnic_bnx2_next_idx(u16 idx)
 945 {
 946         return idx + 1;
 947 }
 948
 949 static u16 cnic_bnx2_hw_idx(u16 idx)
 950 {
 951         return idx;
 952 }
 953
 954 static u16 cnic_bnx2x_next_idx(u16 idx)
 955 {
 956         idx++;
 957         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 958                 idx++;
 959
 960         return idx;
 961 }
 962
 963 static u16 cnic_bnx2x_hw_idx(u16 idx)
 964 {
 965         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 966                 idx++;
 967         return idx;
 968 }
 969
 970 static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info,
 971                           bool use_pg_tbl)
 972 {
 973         int err, i, use_page_tbl = 0;
 974         struct kcqe **kcq;
 975
 976         if (use_pg_tbl)
 977                 use_page_tbl = 1;
 978
 979         err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, use_page_tbl);
 980         if (err)
 981                 return err;
 982
 983         kcq = (struct kcqe **) info->dma.pg_arr;
 984         info->kcq = kcq;
 985
 986         info->next_idx = cnic_bnx2_next_idx;
 987         info->hw_idx = cnic_bnx2_hw_idx;
 988         if (use_pg_tbl)
 989                 return 0;
 990
 991         info->next_idx = cnic_bnx2x_next_idx;
 992         info->hw_idx = cnic_bnx2x_hw_idx;
 993
 994         for (i = 0; i < KCQ_PAGE_CNT; i++) {
 995                 struct bnx2x_bd_chain_next *next =
 996                         (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
 997                 int j = i + 1;
 998
 999                 if (j >= KCQ_PAGE_CNT)
1000                         j = 0;
1001                 next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
1002                 next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
1003         }
1004         return 0;
1005 }
1006
1007 static int __cnic_alloc_uio_rings(struct cnic_uio_dev *udev, int pages)
1008 {
1009         struct cnic_local *cp = udev->dev->cnic_priv;
1010
1011         if (udev->l2_ring)
1012                 return 0;
1013
1014         udev->l2_ring_size = pages * BNX2_PAGE_SIZE;
1015         udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
1016                                            &udev->l2_ring_map,
1017                                            GFP_KERNEL | __GFP_COMP);
1018         if (!udev->l2_ring)
1019                 return -ENOMEM;
1020
1021         udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
1022         udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
1023         udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
1024                                           &udev->l2_buf_map,
1025                                           GFP_KERNEL | __GFP_COMP);
1026         if (!udev->l2_buf) {
1027                 __cnic_free_uio_rings(udev);
1028                 return -ENOMEM;
1029         }
1030
1031         return 0;
1032
1033 }
1034
1035 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
1036 {
1037         struct cnic_local *cp = dev->cnic_priv;
1038         struct cnic_uio_dev *udev;
1039
1040         read_lock(&cnic_dev_lock);
1041         list_for_each_entry(udev, &cnic_udev_list, list) {
1042                 if (udev->pdev == dev->pcidev) {
1043                         udev->dev = dev;
1044                         if (__cnic_alloc_uio_rings(udev, pages)) {
1045                                 udev->dev = NULL;
1046                                 read_unlock(&cnic_dev_lock);
1047                                 return -ENOMEM;
1048                         }
1049                         cp->udev = udev;
1050                         read_unlock(&cnic_dev_lock);
1051                         return 0;
1052                 }
1053         }
1054         read_unlock(&cnic_dev_lock);
1055
1056         udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
1057         if (!udev)
1058                 return -ENOMEM;
1059
1060         udev->uio_dev = -1;
1061
1062         udev->dev = dev;
1063         udev->pdev = dev->pcidev;
1064
1065         if (__cnic_alloc_uio_rings(udev, pages))
1066                 goto err_udev;
1067
1068         write_lock(&cnic_dev_lock);
1069         list_add(&udev->list, &cnic_udev_list);
1070         write_unlock(&cnic_dev_lock);
1071
1072         pci_dev_get(udev->pdev);
1073
1074         cp->udev = udev;
1075
1076         return 0;
1077
1078  err_udev:
1079         kfree(udev);
1080         return -ENOMEM;
1081 }
1082
1083 static int cnic_init_uio(struct cnic_dev *dev)
1084 {
1085         struct cnic_local *cp = dev->cnic_priv;
1086         struct cnic_uio_dev *udev = cp->udev;
1087         struct uio_info *uinfo;
1088         int ret = 0;
1089
1090         if (!udev)
1091                 return -ENOMEM;
1092
1093         uinfo = &udev->cnic_uinfo;
1094
1095         uinfo->mem[0].addr = pci_resource_start(dev->pcidev, 0);
1096         uinfo->mem[0].internal_addr = dev->regview;
1097         uinfo->mem[0].memtype = UIO_MEM_PHYS;
1098
1099         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
1100                 uinfo->mem[0].size = MB_GET_CID_ADDR(TX_TSS_CID +
1101                                                      TX_MAX_TSS_RINGS + 1);
1102                 uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
1103                                         PAGE_MASK;
1104                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
1105                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
1106                 else
1107                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
1108
1109                 uinfo->name = "bnx2_cnic";
1110         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1111                 uinfo->mem[0].size = pci_resource_len(dev->pcidev, 0);
1112
1113                 uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
1114                         PAGE_MASK;
1115                 uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk);
1116
1117                 uinfo->name = "bnx2x_cnic";
1118         }
1119
1120         uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
1121
1122         uinfo->mem[2].addr = (unsigned long) udev->l2_ring;
1123         uinfo->mem[2].size = udev->l2_ring_size;
1124         uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
1125
1126         uinfo->mem[3].addr = (unsigned long) udev->l2_buf;
1127         uinfo->mem[3].size = udev->l2_buf_size;
1128         uinfo->mem[3].memtype = UIO_MEM_LOGICAL;
1129
1130         uinfo->version = CNIC_MODULE_VERSION;
1131         uinfo->irq = UIO_IRQ_CUSTOM;
1132
1133         uinfo->open = cnic_uio_open;
1134         uinfo->release = cnic_uio_close;
1135
1136         if (udev->uio_dev == -1) {
1137                 if (!uinfo->priv) {
1138                         uinfo->priv = udev;
1139
1140                         ret = uio_register_device(&udev->pdev->dev, uinfo);
1141                 }
1142         } else {
1143                 cnic_init_rings(dev);
1144         }
1145
1146         return ret;
1147 }
1148
1149 static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
1150 {
1151         struct cnic_local *cp = dev->cnic_priv;
1152         int ret;
1153
1154         ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
1155         if (ret)
1156                 goto error;
1157         cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
1158
1159         ret = cnic_alloc_kcq(dev, &cp->kcq1, true);
1160         if (ret)
1161                 goto error;
1162
1163         ret = cnic_alloc_context(dev);
1164         if (ret)
1165                 goto error;
1166
1167         ret = cnic_alloc_uio_rings(dev, 2);
1168         if (ret)
1169                 goto error;
1170
1171         ret = cnic_init_uio(dev);
1172         if (ret)
1173                 goto error;
1174
1175         return 0;
1176
1177 error:
1178         cnic_free_resc(dev);
1179         return ret;
1180 }
1181
1182 static int cnic_alloc_bnx2x_context(struct cnic_dev *dev)
1183 {
1184         struct cnic_local *cp = dev->cnic_priv;
1185         int ctx_blk_size = cp->ethdev->ctx_blk_size;
1186         int total_mem, blks, i;
1187
1188         total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
1189         blks = total_mem / ctx_blk_size;
1190         if (total_mem % ctx_blk_size)
1191                 blks++;
1192
1193         if (blks > cp->ethdev->ctx_tbl_len)
1194                 return -ENOMEM;
1195
1196         cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL);
1197         if (cp->ctx_arr == NULL)
1198                 return -ENOMEM;
1199
1200         cp->ctx_blks = blks;
1201         cp->ctx_blk_size = ctx_blk_size;
1202         if (!BNX2X_CHIP_IS_57710(cp->chip_id))
1203                 cp->ctx_align = 0;
1204         else
1205                 cp->ctx_align = ctx_blk_size;
1206
1207         cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
1208
1209         for (i = 0; i < blks; i++) {
1210                 cp->ctx_arr[i].ctx =
1211                         dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
1212                                            &cp->ctx_arr[i].mapping,
1213                                            GFP_KERNEL);
1214                 if (cp->ctx_arr[i].ctx == NULL)
1215                         return -ENOMEM;
1216
1217                 if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
1218                         if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
1219                                 cnic_free_context(dev);
1220                                 cp->ctx_blk_size += cp->ctx_align;
1221                                 i = -1;
1222                                 continue;
1223                         }
1224                 }
1225         }
1226         return 0;
1227 }
1228
1229 static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
1230 {
1231         struct cnic_local *cp = dev->cnic_priv;
1232         struct cnic_eth_dev *ethdev = cp->ethdev;
1233         u32 start_cid = ethdev->starting_cid;
1234         int i, j, n, ret, pages;
1235         struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
1236
1237         cp->iro_arr = ethdev->iro_arr;
1238
1239         cp->max_cid_space = MAX_ISCSI_TBL_SZ;
1240         cp->iscsi_start_cid = start_cid;
1241         cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ;
1242
1243         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
1244                 cp->max_cid_space += dev->max_fcoe_conn;
1245                 cp->fcoe_init_cid = ethdev->fcoe_init_cid;
1246                 if (!cp->fcoe_init_cid)
1247                         cp->fcoe_init_cid = 0x10;
1248         }
1249
1250         cp->iscsi_tbl = kzalloc(sizeof(struct cnic_iscsi) * MAX_ISCSI_TBL_SZ,
1251                                 GFP_KERNEL);
1252         if (!cp->iscsi_tbl)
1253                 goto error;
1254
1255         cp->ctx_tbl = kzalloc(sizeof(struct cnic_context) *
1256                                 cp->max_cid_space, GFP_KERNEL);
1257         if (!cp->ctx_tbl)
1258                 goto error;
1259
1260         for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) {
1261                 cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i];
1262                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI;
1263         }
1264
1265         for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++)
1266                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE;
1267
1268         pages = PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
1269                 PAGE_SIZE;
1270
1271         ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
1272         if (ret)
1273                 return -ENOMEM;
1274
1275         n = PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
1276         for (i = 0, j = 0; i < cp->max_cid_space; i++) {
1277                 long off = CNIC_KWQ16_DATA_SIZE * (i % n);
1278
1279                 cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off;
1280                 cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] +
1281                                                    off;
1282
1283                 if ((i % n) == (n - 1))
1284                         j++;
1285         }
1286
1287         ret = cnic_alloc_kcq(dev, &cp->kcq1, false);
1288         if (ret)
1289                 goto error;
1290
1291         if (CNIC_SUPPORTS_FCOE(cp)) {
1292                 ret = cnic_alloc_kcq(dev, &cp->kcq2, true);
1293                 if (ret)
1294                         goto error;
1295         }
1296
1297         pages = PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / PAGE_SIZE;
1298         ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0);
1299         if (ret)
1300                 goto error;
1301
1302         ret = cnic_alloc_bnx2x_context(dev);
1303         if (ret)
1304                 goto error;
1305
1306         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
1307                 return 0;
1308
1309         cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
1310
1311         cp->l2_rx_ring_size = 15;
1312
1313         ret = cnic_alloc_uio_rings(dev, 4);
1314         if (ret)
1315                 goto error;
1316
1317         ret = cnic_init_uio(dev);
1318         if (ret)
1319                 goto error;
1320
1321         return 0;
1322
1323 error:
1324         cnic_free_resc(dev);
1325         return -ENOMEM;
1326 }
1327
1328 static inline u32 cnic_kwq_avail(struct cnic_local *cp)
1329 {
1330         return cp->max_kwq_idx -
1331                 ((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx);
1332 }
1333
1334 static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
1335                                   u32 num_wqes)
1336 {
1337         struct cnic_local *cp = dev->cnic_priv;
1338         struct kwqe *prod_qe;
1339         u16 prod, sw_prod, i;
1340
1341         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
1342                 return -EAGAIN;         /* bnx2 is down */
1343
1344         spin_lock_bh(&cp->cnic_ulp_lock);
1345         if (num_wqes > cnic_kwq_avail(cp) &&
1346             !test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) {
1347                 spin_unlock_bh(&cp->cnic_ulp_lock);
1348                 return -EAGAIN;
1349         }
1350
1351         clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
1352
1353         prod = cp->kwq_prod_idx;
1354         sw_prod = prod & MAX_KWQ_IDX;
1355         for (i = 0; i < num_wqes; i++) {
1356                 prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)];
1357                 memcpy(prod_qe, wqes[i], sizeof(struct kwqe));
1358                 prod++;
1359                 sw_prod = prod & MAX_KWQ_IDX;
1360         }
1361         cp->kwq_prod_idx = prod;
1362
1363         CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx);
1364
1365         spin_unlock_bh(&cp->cnic_ulp_lock);
1366         return 0;
1367 }
1368
1369 static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid,
1370                                    union l5cm_specific_data *l5_data)
1371 {
1372         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1373         dma_addr_t map;
1374
1375         map = ctx->kwqe_data_mapping;
1376         l5_data->phy_address.lo = (u64) map & 0xffffffff;
1377         l5_data->phy_address.hi = (u64) map >> 32;
1378         return ctx->kwqe_data;
1379 }
1380
1381 static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid,
1382                                 u32 type, union l5cm_specific_data *l5_data)
1383 {
1384         struct cnic_local *cp = dev->cnic_priv;
1385         struct l5cm_spe kwqe;
1386         struct kwqe_16 *kwq[1];
1387         u16 type_16;
1388         int ret;
1389
1390         kwqe.hdr.conn_and_cmd_data =
1391                 cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
1392                              BNX2X_HW_CID(cp, cid)));
1393
1394         type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
1395         type_16 |= (cp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
1396                    SPE_HDR_FUNCTION_ID;
1397
1398         kwqe.hdr.type = cpu_to_le16(type_16);
1399         kwqe.hdr.reserved1 = 0;
1400         kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
1401         kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
1402
1403         kwq[0] = (struct kwqe_16 *) &kwqe;
1404
1405         spin_lock_bh(&cp->cnic_ulp_lock);
1406         ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
1407         spin_unlock_bh(&cp->cnic_ulp_lock);
1408
1409         if (ret == 1)
1410                 return 0;
1411
1412         return ret;
1413 }
1414
1415 static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
1416                                    struct kcqe *cqes[], u32 num_cqes)
1417 {
1418         struct cnic_local *cp = dev->cnic_priv;
1419         struct cnic_ulp_ops *ulp_ops;
1420
1421         rcu_read_lock();
1422         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
1423         if (likely(ulp_ops)) {
1424                 ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
1425                                           cqes, num_cqes);
1426         }
1427         rcu_read_unlock();
1428 }
1429
1430 static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
1431 {
1432         struct cnic_local *cp = dev->cnic_priv;
1433         struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
1434         int hq_bds, pages;
1435         u32 pfid = cp->pfid;
1436
1437         cp->num_iscsi_tasks = req1->num_tasks_per_conn;
1438         cp->num_ccells = req1->num_ccells_per_conn;
1439         cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
1440                               cp->num_iscsi_tasks;
1441         cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
1442                         BNX2X_ISCSI_R2TQE_SIZE;
1443         cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
1444         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1445         hq_bds = pages * (PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
1446         cp->num_cqs = req1->num_cqs;
1447
1448         if (!dev->max_iscsi_conn)
1449                 return 0;
1450
1451         /* init Tstorm RAM */
1452         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1453                   req1->rq_num_wqes);
1454         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1455                   PAGE_SIZE);
1456         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1457                  TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1458         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1459                   TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1460                   req1->num_tasks_per_conn);
1461
1462         /* init Ustorm RAM */
1463         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1464                   USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
1465                   req1->rq_buffer_size);
1466         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1467                   PAGE_SIZE);
1468         CNIC_WR8(dev, BAR_USTRORM_INTMEM +
1469                  USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1470         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1471                   USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1472                   req1->num_tasks_per_conn);
1473         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1474                   req1->rq_num_wqes);
1475         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1476                   req1->cq_num_wqes);
1477         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1478                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1479
1480         /* init Xstorm RAM */
1481         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1482                   PAGE_SIZE);
1483         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1484                  XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1485         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
1486                   XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1487                   req1->num_tasks_per_conn);
1488         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1489                   hq_bds);
1490         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
1491                   req1->num_tasks_per_conn);
1492         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1493                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1494
1495         /* init Cstorm RAM */
1496         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1497                   PAGE_SIZE);
1498         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
1499                  CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1500         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1501                   CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1502                   req1->num_tasks_per_conn);
1503         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1504                   req1->cq_num_wqes);
1505         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1506                   hq_bds);
1507
1508         return 0;
1509 }
1510
1511 static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
1512 {
1513         struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
1514         struct cnic_local *cp = dev->cnic_priv;
1515         u32 pfid = cp->pfid;
1516         struct iscsi_kcqe kcqe;
1517         struct kcqe *cqes[1];
1518
1519         memset(&kcqe, 0, sizeof(kcqe));
1520         if (!dev->max_iscsi_conn) {
1521                 kcqe.completion_status =
1522                         ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
1523                 goto done;
1524         }
1525
1526         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1527                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1528         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1529                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1530                 req2->error_bit_map[1]);
1531
1532         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1533                   USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1534         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1535                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1536         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1537                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1538                 req2->error_bit_map[1]);
1539
1540         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1541                   CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1542
1543         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1544
1545 done:
1546         kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
1547         cqes[0] = (struct kcqe *) &kcqe;
1548         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1549
1550         return 0;
1551 }
1552
1553 static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1554 {
1555         struct cnic_local *cp = dev->cnic_priv;
1556         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1557
1558         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
1559                 struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1560
1561                 cnic_free_dma(dev, &iscsi->hq_info);
1562                 cnic_free_dma(dev, &iscsi->r2tq_info);
1563                 cnic_free_dma(dev, &iscsi->task_array_info);
1564                 cnic_free_id(&cp->cid_tbl, ctx->cid);
1565         } else {
1566                 cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid);
1567         }
1568
1569         ctx->cid = 0;
1570 }
1571
1572 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1573 {
1574         u32 cid;
1575         int ret, pages;
1576         struct cnic_local *cp = dev->cnic_priv;
1577         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1578         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1579
1580         if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
1581                 cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
1582                 if (cid == -1) {
1583                         ret = -ENOMEM;
1584                         goto error;
1585                 }
1586                 ctx->cid = cid;
1587                 return 0;
1588         }
1589
1590         cid = cnic_alloc_new_id(&cp->cid_tbl);
1591         if (cid == -1) {
1592                 ret = -ENOMEM;
1593                 goto error;
1594         }
1595
1596         ctx->cid = cid;
1597         pages = PAGE_ALIGN(cp->task_array_size) / PAGE_SIZE;
1598
1599         ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
1600         if (ret)
1601                 goto error;
1602
1603         pages = PAGE_ALIGN(cp->r2tq_size) / PAGE_SIZE;
1604         ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
1605         if (ret)
1606                 goto error;
1607
1608         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1609         ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
1610         if (ret)
1611                 goto error;
1612
1613         return 0;
1614
1615 error:
1616         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1617         return ret;
1618 }
1619
1620 static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
1621                                 struct regpair *ctx_addr)
1622 {
1623         struct cnic_local *cp = dev->cnic_priv;
1624         struct cnic_eth_dev *ethdev = cp->ethdev;
1625         int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
1626         int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
1627         unsigned long align_off = 0;
1628         dma_addr_t ctx_map;
1629         void *ctx;
1630
1631         if (cp->ctx_align) {
1632                 unsigned long mask = cp->ctx_align - 1;
1633
1634                 if (cp->ctx_arr[blk].mapping & mask)
1635                         align_off = cp->ctx_align -
1636                                     (cp->ctx_arr[blk].mapping & mask);
1637         }
1638         ctx_map = cp->ctx_arr[blk].mapping + align_off +
1639                 (off * BNX2X_CONTEXT_MEM_SIZE);
1640         ctx = cp->ctx_arr[blk].ctx + align_off +
1641               (off * BNX2X_CONTEXT_MEM_SIZE);
1642         if (init)
1643                 memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
1644
1645         ctx_addr->lo = ctx_map & 0xffffffff;
1646         ctx_addr->hi = (u64) ctx_map >> 32;
1647         return ctx;
1648 }
1649
1650 static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
1651                                 u32 num)
1652 {
1653         struct cnic_local *cp = dev->cnic_priv;
1654         struct iscsi_kwqe_conn_offload1 *req1 =
1655                         (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1656         struct iscsi_kwqe_conn_offload2 *req2 =
1657                         (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1658         struct iscsi_kwqe_conn_offload3 *req3;
1659         struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
1660         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1661         u32 cid = ctx->cid;
1662         u32 hw_cid = BNX2X_HW_CID(cp, cid);
1663         struct iscsi_context *ictx;
1664         struct regpair context_addr;
1665         int i, j, n = 2, n_max;
1666         u8 port = CNIC_PORT(cp);
1667
1668         ctx->ctx_flags = 0;
1669         if (!req2->num_additional_wqes)
1670                 return -EINVAL;
1671
1672         n_max = req2->num_additional_wqes + 2;
1673
1674         ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
1675         if (ictx == NULL)
1676                 return -ENOMEM;
1677
1678         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1679
1680         ictx->xstorm_ag_context.hq_prod = 1;
1681
1682         ictx->xstorm_st_context.iscsi.first_burst_length =
1683                 ISCSI_DEF_FIRST_BURST_LEN;
1684         ictx->xstorm_st_context.iscsi.max_send_pdu_length =
1685                 ISCSI_DEF_MAX_RECV_SEG_LEN;
1686         ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
1687                 req1->sq_page_table_addr_lo;
1688         ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
1689                 req1->sq_page_table_addr_hi;
1690         ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
1691         ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
1692         ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
1693                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1694         ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
1695                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1696         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
1697                 iscsi->hq_info.pgtbl[0];
1698         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
1699                 iscsi->hq_info.pgtbl[1];
1700         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
1701                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1702         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
1703                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1704         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
1705                 iscsi->r2tq_info.pgtbl[0];
1706         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
1707                 iscsi->r2tq_info.pgtbl[1];
1708         ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
1709                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1710         ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
1711                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1712         ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
1713                 BNX2X_ISCSI_PBL_NOT_CACHED;
1714         ictx->xstorm_st_context.iscsi.flags.flags |=
1715                 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
1716         ictx->xstorm_st_context.iscsi.flags.flags |=
1717                 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
1718         ictx->xstorm_st_context.common.ethernet.reserved_vlan_type =
1719                 ETH_P_8021Q;
1720         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) &&
1721                 cp->port_mode == CHIP_2_PORT_MODE) {
1722
1723                 port = 0;
1724         }
1725         ictx->xstorm_st_context.common.flags =
1726                 1 << XSTORM_COMMON_CONTEXT_SECTION_PHYSQ_INITIALIZED_SHIFT;
1727         ictx->xstorm_st_context.common.flags =
1728                 port << XSTORM_COMMON_CONTEXT_SECTION_PBF_PORT_SHIFT;
1729
1730         ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
1731         /* TSTORM requires the base address of RQ DB & not PTE */
1732         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
1733                 req2->rq_page_table_addr_lo & PAGE_MASK;
1734         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
1735                 req2->rq_page_table_addr_hi;
1736         ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
1737         ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
1738         ictx->tstorm_st_context.tcp.flags2 |=
1739                 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
1740         ictx->tstorm_st_context.tcp.ooo_support_mode =
1741                 TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
1742
1743         ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
1744
1745         ictx->ustorm_st_context.ring.rq.pbl_base.lo =
1746                 req2->rq_page_table_addr_lo;
1747         ictx->ustorm_st_context.ring.rq.pbl_base.hi =
1748                 req2->rq_page_table_addr_hi;
1749         ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
1750         ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
1751         ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
1752                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1753         ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
1754                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1755         ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
1756                 iscsi->r2tq_info.pgtbl[0];
1757         ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
1758                 iscsi->r2tq_info.pgtbl[1];
1759         ictx->ustorm_st_context.ring.cq_pbl_base.lo =
1760                 req1->cq_page_table_addr_lo;
1761         ictx->ustorm_st_context.ring.cq_pbl_base.hi =
1762                 req1->cq_page_table_addr_hi;
1763         ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
1764         ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
1765         ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
1766         ictx->ustorm_st_context.task_pbe_cache_index =
1767                 BNX2X_ISCSI_PBL_NOT_CACHED;
1768         ictx->ustorm_st_context.task_pdu_cache_index =
1769                 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
1770
1771         for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
1772                 if (j == 3) {
1773                         if (n >= n_max)
1774                                 break;
1775                         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1776                         j = 0;
1777                 }
1778                 ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
1779                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
1780                         req3->qp_first_pte[j].hi;
1781                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
1782                         req3->qp_first_pte[j].lo;
1783         }
1784
1785         ictx->ustorm_st_context.task_pbl_base.lo =
1786                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1787         ictx->ustorm_st_context.task_pbl_base.hi =
1788                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1789         ictx->ustorm_st_context.tce_phy_addr.lo =
1790                 iscsi->task_array_info.pgtbl[0];
1791         ictx->ustorm_st_context.tce_phy_addr.hi =
1792                 iscsi->task_array_info.pgtbl[1];
1793         ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1794         ictx->ustorm_st_context.num_cqs = cp->num_cqs;
1795         ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
1796         ictx->ustorm_st_context.negotiated_rx_and_flags |=
1797                 ISCSI_DEF_MAX_BURST_LEN;
1798         ictx->ustorm_st_context.negotiated_rx |=
1799                 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
1800                 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
1801
1802         ictx->cstorm_st_context.hq_pbl_base.lo =
1803                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1804         ictx->cstorm_st_context.hq_pbl_base.hi =
1805                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1806         ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
1807         ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
1808         ictx->cstorm_st_context.task_pbl_base.lo =
1809                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1810         ictx->cstorm_st_context.task_pbl_base.hi =
1811                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1812         /* CSTORM and USTORM initialization is different, CSTORM requires
1813          * CQ DB base & not PTE addr */
1814         ictx->cstorm_st_context.cq_db_base.lo =
1815                 req1->cq_page_table_addr_lo & PAGE_MASK;
1816         ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
1817         ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1818         ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
1819         for (i = 0; i < cp->num_cqs; i++) {
1820                 ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
1821                         ISCSI_INITIAL_SN;
1822                 ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
1823                         ISCSI_INITIAL_SN;
1824         }
1825
1826         ictx->xstorm_ag_context.cdu_reserved =
1827                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
1828                                        ISCSI_CONNECTION_TYPE);
1829         ictx->ustorm_ag_context.cdu_usage =
1830                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
1831                                        ISCSI_CONNECTION_TYPE);
1832         return 0;
1833
1834 }
1835
1836 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
1837                                    u32 num, int *work)
1838 {
1839         struct iscsi_kwqe_conn_offload1 *req1;
1840         struct iscsi_kwqe_conn_offload2 *req2;
1841         struct cnic_local *cp = dev->cnic_priv;
1842         struct cnic_context *ctx;
1843         struct iscsi_kcqe kcqe;
1844         struct kcqe *cqes[1];
1845         u32 l5_cid;
1846         int ret = 0;
1847
1848         if (num < 2) {
1849                 *work = num;
1850                 return -EINVAL;
1851         }
1852
1853         req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1854         req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1855         if ((num - 2) < req2->num_additional_wqes) {
1856                 *work = num;
1857                 return -EINVAL;
1858         }
1859         *work = 2 + req2->num_additional_wqes;
1860
1861         l5_cid = req1->iscsi_conn_id;
1862         if (l5_cid >= MAX_ISCSI_TBL_SZ)
1863                 return -EINVAL;
1864
1865         memset(&kcqe, 0, sizeof(kcqe));
1866         kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
1867         kcqe.iscsi_conn_id = l5_cid;
1868         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
1869
1870         ctx = &cp->ctx_tbl[l5_cid];
1871         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
1872                 kcqe.completion_status =
1873                         ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
1874                 goto done;
1875         }
1876
1877         if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
1878                 atomic_dec(&cp->iscsi_conn);
1879                 goto done;
1880         }
1881         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
1882         if (ret) {
1883                 atomic_dec(&cp->iscsi_conn);
1884                 ret = 0;
1885                 goto done;
1886         }
1887         ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
1888         if (ret < 0) {
1889                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
1890                 atomic_dec(&cp->iscsi_conn);
1891                 goto done;
1892         }
1893
1894         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1895         kcqe.iscsi_conn_context_id = BNX2X_HW_CID(cp, cp->ctx_tbl[l5_cid].cid);
1896
1897 done:
1898         cqes[0] = (struct kcqe *) &kcqe;
1899         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1900         return 0;
1901 }
1902
1903
1904 static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
1905 {
1906         struct cnic_local *cp = dev->cnic_priv;
1907         struct iscsi_kwqe_conn_update *req =
1908                 (struct iscsi_kwqe_conn_update *) kwqe;
1909         void *data;
1910         union l5cm_specific_data l5_data;
1911         u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
1912         int ret;
1913
1914         if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
1915                 return -EINVAL;
1916
1917         data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
1918         if (!data)
1919                 return -ENOMEM;
1920
1921         memcpy(data, kwqe, sizeof(struct kwqe));
1922
1923         ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
1924                         req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
1925         return ret;
1926 }
1927
1928 static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
1929 {
1930         struct cnic_local *cp = dev->cnic_priv;
1931         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1932         union l5cm_specific_data l5_data;
1933         int ret;
1934         u32 hw_cid;
1935
1936         init_waitqueue_head(&ctx->waitq);
1937         ctx->wait_cond = 0;
1938         memset(&l5_data, 0, sizeof(l5_data));
1939         hw_cid = BNX2X_HW_CID(cp, ctx->cid);
1940
1941         ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
1942                                   hw_cid, NONE_CONNECTION_TYPE, &l5_data);
1943
1944         if (ret == 0) {
1945                 wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO);
1946                 if (unlikely(test_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags)))
1947                         return -EBUSY;
1948         }
1949
1950         return 0;
1951 }
1952
1953 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
1954 {
1955         struct cnic_local *cp = dev->cnic_priv;
1956         struct iscsi_kwqe_conn_destroy *req =
1957                 (struct iscsi_kwqe_conn_destroy *) kwqe;
1958         u32 l5_cid = req->reserved0;
1959         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1960         int ret = 0;
1961         struct iscsi_kcqe kcqe;
1962         struct kcqe *cqes[1];
1963
1964         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
1965                 goto skip_cfc_delete;
1966
1967         if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
1968                 unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
1969
1970                 if (delta > (2 * HZ))
1971                         delta = 0;
1972
1973                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
1974                 queue_delayed_work(cnic_wq, &cp->delete_task, delta);
1975                 goto destroy_reply;
1976         }
1977
1978         ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
1979
1980 skip_cfc_delete:
1981         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1982
1983         if (!ret) {
1984                 atomic_dec(&cp->iscsi_conn);
1985                 clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
1986         }
1987
1988 destroy_reply:
1989         memset(&kcqe, 0, sizeof(kcqe));
1990         kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
1991         kcqe.iscsi_conn_id = l5_cid;
1992         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1993         kcqe.iscsi_conn_context_id = req->context_id;
1994
1995         cqes[0] = (struct kcqe *) &kcqe;
1996         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1997
1998         return 0;
1999 }
2000
2001 static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
2002                                       struct l4_kwq_connect_req1 *kwqe1,
2003                                       struct l4_kwq_connect_req3 *kwqe3,
2004                                       struct l5cm_active_conn_buffer *conn_buf)
2005 {
2006         struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
2007         struct l5cm_xstorm_conn_buffer *xstorm_buf =
2008                 &conn_buf->xstorm_conn_buffer;
2009         struct l5cm_tstorm_conn_buffer *tstorm_buf =
2010                 &conn_buf->tstorm_conn_buffer;
2011         struct regpair context_addr;
2012         u32 cid = BNX2X_SW_CID(kwqe1->cid);
2013         struct in6_addr src_ip, dst_ip;
2014         int i;
2015         u32 *addrp;
2016
2017         addrp = (u32 *) &conn_addr->local_ip_addr;
2018         for (i = 0; i < 4; i++, addrp++)
2019                 src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
2020
2021         addrp = (u32 *) &conn_addr->remote_ip_addr;
2022         for (i = 0; i < 4; i++, addrp++)
2023                 dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
2024
2025         cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
2026
2027         xstorm_buf->context_addr.hi = context_addr.hi;
2028         xstorm_buf->context_addr.lo = context_addr.lo;
2029         xstorm_buf->mss = 0xffff;
2030         xstorm_buf->rcv_buf = kwqe3->rcv_buf;
2031         if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
2032                 xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
2033         xstorm_buf->pseudo_header_checksum =
2034                 swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
2035
2036         if (!(kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK))
2037                 tstorm_buf->params |=
2038                         L5CM_TSTORM_CONN_BUFFER_DELAYED_ACK_ENABLE;
2039         if (kwqe3->ka_timeout) {
2040                 tstorm_buf->ka_enable = 1;
2041                 tstorm_buf->ka_timeout = kwqe3->ka_timeout;
2042                 tstorm_buf->ka_interval = kwqe3->ka_interval;
2043                 tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
2044         }
2045         tstorm_buf->max_rt_time = 0xffffffff;
2046 }
2047
2048 static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
2049 {
2050         struct cnic_local *cp = dev->cnic_priv;
2051         u32 pfid = cp->pfid;
2052         u8 *mac = dev->mac_addr;
2053
2054         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2055                  XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
2056         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2057                  XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
2058         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2059                  XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
2060         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2061                  XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
2062         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2063                  XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
2064         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2065                  XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
2066
2067         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2068                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
2069         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2070                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2071                  mac[4]);
2072         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2073                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
2074         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2075                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2076                  mac[2]);
2077         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2078                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[1]);
2079         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2080                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2081                  mac[0]);
2082 }
2083
2084 static void cnic_bnx2x_set_tcp_timestamp(struct cnic_dev *dev, int tcp_ts)
2085 {
2086         struct cnic_local *cp = dev->cnic_priv;
2087         u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
2088         u16 tstorm_flags = 0;
2089
2090         if (tcp_ts) {
2091                 xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
2092                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
2093         }
2094
2095         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2096                  XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), xstorm_flags);
2097
2098         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
2099                   TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), tstorm_flags);
2100 }
2101
2102 static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
2103                               u32 num, int *work)
2104 {
2105         struct cnic_local *cp = dev->cnic_priv;
2106         struct l4_kwq_connect_req1 *kwqe1 =
2107                 (struct l4_kwq_connect_req1 *) wqes[0];
2108         struct l4_kwq_connect_req3 *kwqe3;
2109         struct l5cm_active_conn_buffer *conn_buf;
2110         struct l5cm_conn_addr_params *conn_addr;
2111         union l5cm_specific_data l5_data;
2112         u32 l5_cid = kwqe1->pg_cid;
2113         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
2114         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2115         int ret;
2116
2117         if (num < 2) {
2118                 *work = num;
2119                 return -EINVAL;
2120         }
2121
2122         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
2123                 *work = 3;
2124         else
2125                 *work = 2;
2126
2127         if (num < *work) {
2128                 *work = num;
2129                 return -EINVAL;
2130         }
2131
2132         if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
2133                 netdev_err(dev->netdev, "conn_buf size too big\n");
2134                 return -ENOMEM;
2135         }
2136         conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2137         if (!conn_buf)
2138                 return -ENOMEM;
2139
2140         memset(conn_buf, 0, sizeof(*conn_buf));
2141
2142         conn_addr = &conn_buf->conn_addr_buf;
2143         conn_addr->remote_addr_0 = csk->ha[0];
2144         conn_addr->remote_addr_1 = csk->ha[1];
2145         conn_addr->remote_addr_2 = csk->ha[2];
2146         conn_addr->remote_addr_3 = csk->ha[3];
2147         conn_addr->remote_addr_4 = csk->ha[4];
2148         conn_addr->remote_addr_5 = csk->ha[5];
2149
2150         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
2151                 struct l4_kwq_connect_req2 *kwqe2 =
2152                         (struct l4_kwq_connect_req2 *) wqes[1];
2153
2154                 conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
2155                 conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
2156                 conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
2157
2158                 conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
2159                 conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
2160                 conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
2161                 conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
2162         }
2163         kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
2164
2165         conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
2166         conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
2167         conn_addr->local_tcp_port = kwqe1->src_port;
2168         conn_addr->remote_tcp_port = kwqe1->dst_port;
2169
2170         conn_addr->pmtu = kwqe3->pmtu;
2171         cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
2172
2173         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
2174                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(cp->pfid), csk->vlan_id);
2175
2176         cnic_bnx2x_set_tcp_timestamp(dev,
2177                 kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_TIME_STAMP);
2178
2179         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
2180                         kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2181         if (!ret)
2182                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2183
2184         return ret;
2185 }
2186
2187 static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
2188 {
2189         struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
2190         union l5cm_specific_data l5_data;
2191         int ret;
2192
2193         memset(&l5_data, 0, sizeof(l5_data));
2194         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
2195                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2196         return ret;
2197 }
2198
2199 static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
2200 {
2201         struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
2202         union l5cm_specific_data l5_data;
2203         int ret;
2204
2205         memset(&l5_data, 0, sizeof(l5_data));
2206         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
2207                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2208         return ret;
2209 }
2210 static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2211 {
2212         struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
2213         struct l4_kcq kcqe;
2214         struct kcqe *cqes[1];
2215
2216         memset(&kcqe, 0, sizeof(kcqe));
2217         kcqe.pg_host_opaque = req->host_opaque;
2218         kcqe.pg_cid = req->host_opaque;
2219         kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
2220         cqes[0] = (struct kcqe *) &kcqe;
2221         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2222         return 0;
2223 }
2224
2225 static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2226 {
2227         struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
2228         struct l4_kcq kcqe;
2229         struct kcqe *cqes[1];
2230
2231         memset(&kcqe, 0, sizeof(kcqe));
2232         kcqe.pg_host_opaque = req->pg_host_opaque;
2233         kcqe.pg_cid = req->pg_cid;
2234         kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
2235         cqes[0] = (struct kcqe *) &kcqe;
2236         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2237         return 0;
2238 }
2239
2240 static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
2241 {
2242         struct fcoe_kwqe_stat *req;
2243         struct fcoe_stat_ramrod_params *fcoe_stat;
2244         union l5cm_specific_data l5_data;
2245         struct cnic_local *cp = dev->cnic_priv;
2246         int ret;
2247         u32 cid;
2248
2249         req = (struct fcoe_kwqe_stat *) kwqe;
2250         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2251
2252         fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2253         if (!fcoe_stat)
2254                 return -ENOMEM;
2255
2256         memset(fcoe_stat, 0, sizeof(*fcoe_stat));
2257         memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
2258
2259         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT_FUNC, cid,
2260                                   FCOE_CONNECTION_TYPE, &l5_data);
2261         return ret;
2262 }
2263
2264 static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
2265                                  u32 num, int *work)
2266 {
2267         int ret;
2268         struct cnic_local *cp = dev->cnic_priv;
2269         u32 cid;
2270         struct fcoe_init_ramrod_params *fcoe_init;
2271         struct fcoe_kwqe_init1 *req1;
2272         struct fcoe_kwqe_init2 *req2;
2273         struct fcoe_kwqe_init3 *req3;
2274         union l5cm_specific_data l5_data;
2275
2276         if (num < 3) {
2277                 *work = num;
2278                 return -EINVAL;
2279         }
2280         req1 = (struct fcoe_kwqe_init1 *) wqes[0];
2281         req2 = (struct fcoe_kwqe_init2 *) wqes[1];
2282         req3 = (struct fcoe_kwqe_init3 *) wqes[2];
2283         if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
2284                 *work = 1;
2285                 return -EINVAL;
2286         }
2287         if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
2288                 *work = 2;
2289                 return -EINVAL;
2290         }
2291
2292         if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
2293                 netdev_err(dev->netdev, "fcoe_init size too big\n");
2294                 return -ENOMEM;
2295         }
2296         fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2297         if (!fcoe_init)
2298                 return -ENOMEM;
2299
2300         memset(fcoe_init, 0, sizeof(*fcoe_init));
2301         memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
2302         memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
2303         memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
2304         fcoe_init->eq_pbl_base.lo = cp->kcq2.dma.pgtbl_map & 0xffffffff;
2305         fcoe_init->eq_pbl_base.hi = (u64) cp->kcq2.dma.pgtbl_map >> 32;
2306         fcoe_init->eq_pbl_size = cp->kcq2.dma.num_pages;
2307
2308         fcoe_init->sb_num = cp->status_blk_num;
2309         fcoe_init->eq_prod = MAX_KCQ_IDX;
2310         fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
2311         cp->kcq2.sw_prod_idx = 0;
2312
2313         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2314         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT_FUNC, cid,
2315                                   FCOE_CONNECTION_TYPE, &l5_data);
2316         *work = 3;
2317         return ret;
2318 }
2319
2320 static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
2321                                  u32 num, int *work)
2322 {
2323         int ret = 0;
2324         u32 cid = -1, l5_cid;
2325         struct cnic_local *cp = dev->cnic_priv;
2326         struct fcoe_kwqe_conn_offload1 *req1;
2327         struct fcoe_kwqe_conn_offload2 *req2;
2328         struct fcoe_kwqe_conn_offload3 *req3;
2329         struct fcoe_kwqe_conn_offload4 *req4;
2330         struct fcoe_conn_offload_ramrod_params *fcoe_offload;
2331         struct cnic_context *ctx;
2332         struct fcoe_context *fctx;
2333         struct regpair ctx_addr;
2334         union l5cm_specific_data l5_data;
2335         struct fcoe_kcqe kcqe;
2336         struct kcqe *cqes[1];
2337
2338         if (num < 4) {
2339                 *work = num;
2340                 return -EINVAL;
2341         }
2342         req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
2343         req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
2344         req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
2345         req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
2346
2347         *work = 4;
2348
2349         l5_cid = req1->fcoe_conn_id;
2350         if (l5_cid >= dev->max_fcoe_conn)
2351                 goto err_reply;
2352
2353         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2354
2355         ctx = &cp->ctx_tbl[l5_cid];
2356         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2357                 goto err_reply;
2358
2359         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
2360         if (ret) {
2361                 ret = 0;
2362                 goto err_reply;
2363         }
2364         cid = ctx->cid;
2365
2366         fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
2367         if (fctx) {
2368                 u32 hw_cid = BNX2X_HW_CID(cp, cid);
2369                 u32 val;
2370
2371                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
2372                                              FCOE_CONNECTION_TYPE);
2373                 fctx->xstorm_ag_context.cdu_reserved = val;
2374                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
2375                                              FCOE_CONNECTION_TYPE);
2376                 fctx->ustorm_ag_context.cdu_usage = val;
2377         }
2378         if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
2379                 netdev_err(dev->netdev, "fcoe_offload size too big\n");
2380                 goto err_reply;
2381         }
2382         fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2383         if (!fcoe_offload)
2384                 goto err_reply;
2385
2386         memset(fcoe_offload, 0, sizeof(*fcoe_offload));
2387         memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
2388         memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
2389         memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
2390         memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
2391
2392         cid = BNX2X_HW_CID(cp, cid);
2393         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
2394                                   FCOE_CONNECTION_TYPE, &l5_data);
2395         if (!ret)
2396                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2397
2398         return ret;
2399
2400 err_reply:
2401         if (cid != -1)
2402                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
2403
2404         memset(&kcqe, 0, sizeof(kcqe));
2405         kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
2406         kcqe.fcoe_conn_id = req1->fcoe_conn_id;
2407         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
2408
2409         cqes[0] = (struct kcqe *) &kcqe;
2410         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2411         return ret;
2412 }
2413
2414 static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
2415 {
2416         struct fcoe_kwqe_conn_enable_disable *req;
2417         struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
2418         union l5cm_specific_data l5_data;
2419         int ret;
2420         u32 cid, l5_cid;
2421         struct cnic_local *cp = dev->cnic_priv;
2422
2423         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2424         cid = req->context_id;
2425         l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
2426
2427         if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
2428                 netdev_err(dev->netdev, "fcoe_enable size too big\n");
2429                 return -ENOMEM;
2430         }
2431         fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2432         if (!fcoe_enable)
2433                 return -ENOMEM;
2434
2435         memset(fcoe_enable, 0, sizeof(*fcoe_enable));
2436         memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
2437         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
2438                                   FCOE_CONNECTION_TYPE, &l5_data);
2439         return ret;
2440 }
2441
2442 static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
2443 {
2444         struct fcoe_kwqe_conn_enable_disable *req;
2445         struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
2446         union l5cm_specific_data l5_data;
2447         int ret;
2448         u32 cid, l5_cid;
2449         struct cnic_local *cp = dev->cnic_priv;
2450
2451         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2452         cid = req->context_id;
2453         l5_cid = req->conn_id;
2454         if (l5_cid >= dev->max_fcoe_conn)
2455                 return -EINVAL;
2456
2457         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2458
2459         if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
2460                 netdev_err(dev->netdev, "fcoe_disable size too big\n");
2461                 return -ENOMEM;
2462         }
2463         fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2464         if (!fcoe_disable)
2465                 return -ENOMEM;
2466
2467         memset(fcoe_disable, 0, sizeof(*fcoe_disable));
2468         memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
2469         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
2470                                   FCOE_CONNECTION_TYPE, &l5_data);
2471         return ret;
2472 }
2473
2474 static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2475 {
2476         struct fcoe_kwqe_conn_destroy *req;
2477         union l5cm_specific_data l5_data;
2478         int ret;
2479         u32 cid, l5_cid;
2480         struct cnic_local *cp = dev->cnic_priv;
2481         struct cnic_context *ctx;
2482         struct fcoe_kcqe kcqe;
2483         struct kcqe *cqes[1];
2484
2485         req = (struct fcoe_kwqe_conn_destroy *) kwqe;
2486         cid = req->context_id;
2487         l5_cid = req->conn_id;
2488         if (l5_cid >= dev->max_fcoe_conn)
2489                 return -EINVAL;
2490
2491         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2492
2493         ctx = &cp->ctx_tbl[l5_cid];
2494
2495         init_waitqueue_head(&ctx->waitq);
2496         ctx->wait_cond = 0;
2497
2498         memset(&kcqe, 0, sizeof(kcqe));
2499         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_ERROR;
2500         memset(&l5_data, 0, sizeof(l5_data));
2501         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
2502                                   FCOE_CONNECTION_TYPE, &l5_data);
2503         if (ret == 0) {
2504                 wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO);
2505                 if (ctx->wait_cond)
2506                         kcqe.completion_status = 0;
2507         }
2508
2509         set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2510         queue_delayed_work(cnic_wq, &cp->delete_task, msecs_to_jiffies(2000));
2511
2512         kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
2513         kcqe.fcoe_conn_id = req->conn_id;
2514         kcqe.fcoe_conn_context_id = cid;
2515
2516         cqes[0] = (struct kcqe *) &kcqe;
2517         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2518         return ret;
2519 }
2520
2521 static void cnic_bnx2x_delete_wait(struct cnic_dev *dev, u32 start_cid)
2522 {
2523         struct cnic_local *cp = dev->cnic_priv;
2524         u32 i;
2525
2526         for (i = start_cid; i < cp->max_cid_space; i++) {
2527                 struct cnic_context *ctx = &cp->ctx_tbl[i];
2528                 int j;
2529
2530                 while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
2531                         msleep(10);
2532
2533                 for (j = 0; j < 5; j++) {
2534                         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2535                                 break;
2536                         msleep(20);
2537                 }
2538
2539                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2540                         netdev_warn(dev->netdev, "CID %x not deleted\n",
2541                                    ctx->cid);
2542         }
2543 }
2544
2545 static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2546 {
2547         struct fcoe_kwqe_destroy *req;
2548         union l5cm_specific_data l5_data;
2549         struct cnic_local *cp = dev->cnic_priv;
2550         int ret;
2551         u32 cid;
2552
2553         cnic_bnx2x_delete_wait(dev, MAX_ISCSI_TBL_SZ);
2554
2555         req = (struct fcoe_kwqe_destroy *) kwqe;
2556         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2557
2558         memset(&l5_data, 0, sizeof(l5_data));
2559         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY_FUNC, cid,
2560                                   FCOE_CONNECTION_TYPE, &l5_data);
2561         return ret;
2562 }
2563
2564 static void cnic_bnx2x_kwqe_err(struct cnic_dev *dev, struct kwqe *kwqe)
2565 {
2566         struct cnic_local *cp = dev->cnic_priv;
2567         struct kcqe kcqe;
2568         struct kcqe *cqes[1];
2569         u32 cid;
2570         u32 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2571         u32 layer_code = kwqe->kwqe_op_flag & KWQE_LAYER_MASK;
2572         u32 kcqe_op;
2573         int ulp_type;
2574
2575         cid = kwqe->kwqe_info0;
2576         memset(&kcqe, 0, sizeof(kcqe));
2577
2578         if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_FCOE) {
2579                 u32 l5_cid = 0;
2580
2581                 ulp_type = CNIC_ULP_FCOE;
2582                 if (opcode == FCOE_KWQE_OPCODE_DISABLE_CONN) {
2583                         struct fcoe_kwqe_conn_enable_disable *req;
2584
2585                         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2586                         kcqe_op = FCOE_KCQE_OPCODE_DISABLE_CONN;
2587                         cid = req->context_id;
2588                         l5_cid = req->conn_id;
2589                 } else if (opcode == FCOE_KWQE_OPCODE_DESTROY) {
2590                         kcqe_op = FCOE_KCQE_OPCODE_DESTROY_FUNC;
2591                 } else {
2592                         return;
2593                 }
2594                 kcqe.kcqe_op_flag = kcqe_op << KCQE_FLAGS_OPCODE_SHIFT;
2595                 kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_FCOE;
2596                 kcqe.kcqe_info1 = FCOE_KCQE_COMPLETION_STATUS_PARITY_ERROR;
2597                 kcqe.kcqe_info2 = cid;
2598                 kcqe.kcqe_info0 = l5_cid;
2599
2600         } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_ISCSI) {
2601                 ulp_type = CNIC_ULP_ISCSI;
2602                 if (opcode == ISCSI_KWQE_OPCODE_UPDATE_CONN)
2603                         cid = kwqe->kwqe_info1;
2604
2605                 kcqe.kcqe_op_flag = (opcode + 0x10) << KCQE_FLAGS_OPCODE_SHIFT;
2606                 kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_ISCSI;
2607                 kcqe.kcqe_info1 = ISCSI_KCQE_COMPLETION_STATUS_PARITY_ERR;
2608                 kcqe.kcqe_info2 = cid;
2609                 cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &kcqe.kcqe_info0);
2610
2611         } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L4) {
2612                 struct l4_kcq *l4kcqe = (struct l4_kcq *) &kcqe;
2613
2614                 ulp_type = CNIC_ULP_L4;
2615                 if (opcode == L4_KWQE_OPCODE_VALUE_CONNECT1)
2616                         kcqe_op = L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE;
2617                 else if (opcode == L4_KWQE_OPCODE_VALUE_RESET)
2618                         kcqe_op = L4_KCQE_OPCODE_VALUE_RESET_COMP;
2619                 else if (opcode == L4_KWQE_OPCODE_VALUE_CLOSE)
2620                         kcqe_op = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
2621                 else
2622                         return;
2623
2624                 kcqe.kcqe_op_flag = (kcqe_op << KCQE_FLAGS_OPCODE_SHIFT) |
2625                                     KCQE_FLAGS_LAYER_MASK_L4;
2626                 l4kcqe->status = L4_KCQE_COMPLETION_STATUS_PARITY_ERROR;
2627                 l4kcqe->cid = cid;
2628                 cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &l4kcqe->conn_id);
2629         } else {
2630                 return;
2631         }
2632
2633         cqes[0] = &kcqe;
2634         cnic_reply_bnx2x_kcqes(dev, ulp_type, cqes, 1);
2635 }
2636
2637 static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev,
2638                                          struct kwqe *wqes[], u32 num_wqes)
2639 {
2640         int i, work, ret;
2641         u32 opcode;
2642         struct kwqe *kwqe;
2643
2644         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2645                 return -EAGAIN;         /* bnx2 is down */
2646
2647         for (i = 0; i < num_wqes; ) {
2648                 kwqe = wqes[i];
2649                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2650                 work = 1;
2651
2652                 switch (opcode) {
2653                 case ISCSI_KWQE_OPCODE_INIT1:
2654                         ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
2655                         break;
2656                 case ISCSI_KWQE_OPCODE_INIT2:
2657                         ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
2658                         break;
2659                 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
2660                         ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
2661                                                      num_wqes - i, &work);
2662                         break;
2663                 case ISCSI_KWQE_OPCODE_UPDATE_CONN:
2664                         ret = cnic_bnx2x_iscsi_update(dev, kwqe);
2665                         break;
2666                 case ISCSI_KWQE_OPCODE_DESTROY_CONN:
2667                         ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
2668                         break;
2669                 case L4_KWQE_OPCODE_VALUE_CONNECT1:
2670                         ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
2671                                                  &work);
2672                         break;
2673                 case L4_KWQE_OPCODE_VALUE_CLOSE:
2674                         ret = cnic_bnx2x_close(dev, kwqe);
2675                         break;
2676                 case L4_KWQE_OPCODE_VALUE_RESET:
2677                         ret = cnic_bnx2x_reset(dev, kwqe);
2678                         break;
2679                 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
2680                         ret = cnic_bnx2x_offload_pg(dev, kwqe);
2681                         break;
2682                 case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
2683                         ret = cnic_bnx2x_update_pg(dev, kwqe);
2684                         break;
2685                 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
2686                         ret = 0;
2687                         break;
2688                 default:
2689                         ret = 0;
2690                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2691                                    opcode);
2692                         break;
2693                 }
2694                 if (ret < 0) {
2695                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2696                                    opcode);
2697
2698                         /* Possibly bnx2x parity error, send completion
2699                          * to ulp drivers with error code to speed up
2700                          * cleanup and reset recovery.
2701                          */
2702                         if (ret == -EIO || ret == -EAGAIN)
2703                                 cnic_bnx2x_kwqe_err(dev, kwqe);
2704                 }
2705                 i += work;
2706         }
2707         return 0;
2708 }
2709
2710 static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
2711                                         struct kwqe *wqes[], u32 num_wqes)
2712 {
2713         struct cnic_local *cp = dev->cnic_priv;
2714         int i, work, ret;
2715         u32 opcode;
2716         struct kwqe *kwqe;
2717
2718         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2719                 return -EAGAIN;         /* bnx2 is down */
2720
2721         if (!BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
2722                 return -EINVAL;
2723
2724         for (i = 0; i < num_wqes; ) {
2725                 kwqe = wqes[i];
2726                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2727                 work = 1;
2728
2729                 switch (opcode) {
2730                 case FCOE_KWQE_OPCODE_INIT1:
2731                         ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
2732                                                     num_wqes - i, &work);
2733                         break;
2734                 case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
2735                         ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
2736                                                     num_wqes - i, &work);
2737                         break;
2738                 case FCOE_KWQE_OPCODE_ENABLE_CONN:
2739                         ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
2740                         break;
2741                 case FCOE_KWQE_OPCODE_DISABLE_CONN:
2742                         ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
2743                         break;
2744                 case FCOE_KWQE_OPCODE_DESTROY_CONN:
2745                         ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
2746                         break;
2747                 case FCOE_KWQE_OPCODE_DESTROY:
2748                         ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
2749                         break;
2750                 case FCOE_KWQE_OPCODE_STAT:
2751                         ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
2752                         break;
2753                 default:
2754                         ret = 0;
2755                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2756                                    opcode);
2757                         break;
2758                 }
2759                 if (ret < 0) {
2760                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2761                                    opcode);
2762
2763                         /* Possibly bnx2x parity error, send completion
2764                          * to ulp drivers with error code to speed up
2765                          * cleanup and reset recovery.
2766                          */
2767                         if (ret == -EIO || ret == -EAGAIN)
2768                                 cnic_bnx2x_kwqe_err(dev, kwqe);
2769                 }
2770                 i += work;
2771         }
2772         return 0;
2773 }
2774
2775 static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
2776                                    u32 num_wqes)
2777 {
2778         int ret = -EINVAL;
2779         u32 layer_code;
2780
2781         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2782                 return -EAGAIN;         /* bnx2x is down */
2783
2784         if (!num_wqes)
2785                 return 0;
2786
2787         layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
2788         switch (layer_code) {
2789         case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
2790         case KWQE_FLAGS_LAYER_MASK_L4:
2791         case KWQE_FLAGS_LAYER_MASK_L2:
2792                 ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
2793                 break;
2794
2795         case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
2796                 ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
2797                 break;
2798         }
2799         return ret;
2800 }
2801
2802 static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
2803 {
2804         if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
2805                 return KCQE_FLAGS_LAYER_MASK_L4;
2806
2807         return opflag & KCQE_FLAGS_LAYER_MASK;
2808 }
2809
2810 static void service_kcqes(struct cnic_dev *dev, int num_cqes)
2811 {
2812         struct cnic_local *cp = dev->cnic_priv;
2813         int i, j, comp = 0;
2814
2815         i = 0;
2816         j = 1;
2817         while (num_cqes) {
2818                 struct cnic_ulp_ops *ulp_ops;
2819                 int ulp_type;
2820                 u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
2821                 u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag);
2822
2823                 if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
2824                         comp++;
2825
2826                 while (j < num_cqes) {
2827                         u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
2828
2829                         if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
2830                                 break;
2831
2832                         if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
2833                                 comp++;
2834                         j++;
2835                 }
2836
2837                 if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
2838                         ulp_type = CNIC_ULP_RDMA;
2839                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
2840                         ulp_type = CNIC_ULP_ISCSI;
2841                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE)
2842                         ulp_type = CNIC_ULP_FCOE;
2843                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
2844                         ulp_type = CNIC_ULP_L4;
2845                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
2846                         goto end;
2847                 else {
2848                         netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
2849                                    kcqe_op_flag);
2850                         goto end;
2851                 }
2852
2853                 rcu_read_lock();
2854                 ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
2855                 if (likely(ulp_ops)) {
2856                         ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
2857                                                   cp->completed_kcq + i, j);
2858                 }
2859                 rcu_read_unlock();
2860 end:
2861                 num_cqes -= j;
2862                 i += j;
2863                 j = 1;
2864         }
2865         if (unlikely(comp))
2866                 cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
2867 }
2868
2869 static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
2870 {
2871         struct cnic_local *cp = dev->cnic_priv;
2872         u16 i, ri, hw_prod, last;
2873         struct kcqe *kcqe;
2874         int kcqe_cnt = 0, last_cnt = 0;
2875
2876         i = ri = last = info->sw_prod_idx;
2877         ri &= MAX_KCQ_IDX;
2878         hw_prod = *info->hw_prod_idx_ptr;
2879         hw_prod = info->hw_idx(hw_prod);
2880
2881         while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
2882                 kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
2883                 cp->completed_kcq[kcqe_cnt++] = kcqe;
2884                 i = info->next_idx(i);
2885                 ri = i & MAX_KCQ_IDX;
2886                 if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
2887                         last_cnt = kcqe_cnt;
2888                         last = i;
2889                 }
2890         }
2891
2892         info->sw_prod_idx = last;
2893         return last_cnt;
2894 }
2895
2896 static int cnic_l2_completion(struct cnic_local *cp)
2897 {
2898         u16 hw_cons, sw_cons;
2899         struct cnic_uio_dev *udev = cp->udev;
2900         union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
2901                                         (udev->l2_ring + (2 * BNX2_PAGE_SIZE));
2902         u32 cmd;
2903         int comp = 0;
2904
2905         if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
2906                 return 0;
2907
2908         hw_cons = *cp->rx_cons_ptr;
2909         if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
2910                 hw_cons++;
2911
2912         sw_cons = cp->rx_cons;
2913         while (sw_cons != hw_cons) {
2914                 u8 cqe_fp_flags;
2915
2916                 cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
2917                 cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
2918                 if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
2919                         cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
2920                         cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
2921                         if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
2922                             cmd == RAMROD_CMD_ID_ETH_HALT)
2923                                 comp++;
2924                 }
2925                 sw_cons = BNX2X_NEXT_RCQE(sw_cons);
2926         }
2927         return comp;
2928 }
2929
2930 static void cnic_chk_pkt_rings(struct cnic_local *cp)
2931 {
2932         u16 rx_cons, tx_cons;
2933         int comp = 0;
2934
2935         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
2936                 return;
2937
2938         rx_cons = *cp->rx_cons_ptr;
2939         tx_cons = *cp->tx_cons_ptr;
2940         if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
2941                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
2942                         comp = cnic_l2_completion(cp);
2943
2944                 cp->tx_cons = tx_cons;
2945                 cp->rx_cons = rx_cons;
2946
2947                 if (cp->udev)
2948                         uio_event_notify(&cp->udev->cnic_uinfo);
2949         }
2950         if (comp)
2951                 clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
2952 }
2953
2954 static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
2955 {
2956         struct cnic_local *cp = dev->cnic_priv;
2957         u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2958         int kcqe_cnt;
2959
2960         /* status block index must be read before reading other fields */
2961         rmb();
2962         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2963
2964         while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
2965
2966                 service_kcqes(dev, kcqe_cnt);
2967
2968                 /* Tell compiler that status_blk fields can change. */
2969                 barrier();
2970                 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2971                 /* status block index must be read first */
2972                 rmb();
2973                 cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2974         }
2975
2976         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
2977
2978         cnic_chk_pkt_rings(cp);
2979
2980         return status_idx;
2981 }
2982
2983 static int cnic_service_bnx2(void *data, void *status_blk)
2984 {
2985         struct cnic_dev *dev = data;
2986
2987         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2988                 struct status_block *sblk = status_blk;
2989
2990                 return sblk->status_idx;
2991         }
2992
2993         return cnic_service_bnx2_queues(dev);
2994 }
2995
2996 static void cnic_service_bnx2_msix(unsigned long data)
2997 {
2998         struct cnic_dev *dev = (struct cnic_dev *) data;
2999         struct cnic_local *cp = dev->cnic_priv;
3000
3001         cp->last_status_idx = cnic_service_bnx2_queues(dev);
3002
3003         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
3004                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
3005 }
3006
3007 static void cnic_doirq(struct cnic_dev *dev)
3008 {
3009         struct cnic_local *cp = dev->cnic_priv;
3010
3011         if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
3012                 u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
3013
3014                 prefetch(cp->status_blk.gen);
3015                 prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
3016
3017                 tasklet_schedule(&cp->cnic_irq_task);
3018         }
3019 }
3020
3021 static irqreturn_t cnic_irq(int irq, void *dev_instance)
3022 {
3023         struct cnic_dev *dev = dev_instance;
3024         struct cnic_local *cp = dev->cnic_priv;
3025
3026         if (cp->ack_int)
3027                 cp->ack_int(dev);
3028
3029         cnic_doirq(dev);
3030
3031         return IRQ_HANDLED;
3032 }
3033
3034 static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
3035                                       u16 index, u8 op, u8 update)
3036 {
3037         struct cnic_local *cp = dev->cnic_priv;
3038         u32 hc_addr = (HC_REG_COMMAND_REG + CNIC_PORT(cp) * 32 +
3039                        COMMAND_REG_INT_ACK);
3040         struct igu_ack_register igu_ack;
3041
3042         igu_ack.status_block_index = index;
3043         igu_ack.sb_id_and_flags =
3044                         ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
3045                          (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
3046                          (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
3047                          (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
3048
3049         CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
3050 }
3051
3052 static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
3053                             u16 index, u8 op, u8 update)
3054 {
3055         struct igu_regular cmd_data;
3056         u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
3057
3058         cmd_data.sb_id_and_flags =
3059                 (index << IGU_REGULAR_SB_INDEX_SHIFT) |
3060                 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
3061                 (update << IGU_REGULAR_BUPDATE_SHIFT) |
3062                 (op << IGU_REGULAR_ENABLE_INT_SHIFT);
3063
3064
3065         CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
3066 }
3067
3068 static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
3069 {
3070         struct cnic_local *cp = dev->cnic_priv;
3071
3072         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
3073                            IGU_INT_DISABLE, 0);
3074 }
3075
3076 static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
3077 {
3078         struct cnic_local *cp = dev->cnic_priv;
3079
3080         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0,
3081                         IGU_INT_DISABLE, 0);
3082 }
3083
3084 static void cnic_arm_bnx2x_msix(struct cnic_dev *dev, u32 idx)
3085 {
3086         struct cnic_local *cp = dev->cnic_priv;
3087
3088         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, idx,
3089                            IGU_INT_ENABLE, 1);
3090 }
3091
3092 static void cnic_arm_bnx2x_e2_msix(struct cnic_dev *dev, u32 idx)
3093 {
3094         struct cnic_local *cp = dev->cnic_priv;
3095
3096         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, idx,
3097                         IGU_INT_ENABLE, 1);
3098 }
3099
3100 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
3101 {
3102         u32 last_status = *info->status_idx_ptr;
3103         int kcqe_cnt;
3104
3105         /* status block index must be read before reading the KCQ */
3106         rmb();
3107         while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
3108
3109                 service_kcqes(dev, kcqe_cnt);
3110
3111                 /* Tell compiler that sblk fields can change. */
3112                 barrier();
3113
3114                 last_status = *info->status_idx_ptr;
3115                 /* status block index must be read before reading the KCQ */
3116                 rmb();
3117         }
3118         return last_status;
3119 }
3120
3121 static void cnic_service_bnx2x_bh(unsigned long data)
3122 {
3123         struct cnic_dev *dev = (struct cnic_dev *) data;
3124         struct cnic_local *cp = dev->cnic_priv;
3125         u32 status_idx, new_status_idx;
3126
3127         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
3128                 return;
3129
3130         while (1) {
3131                 status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
3132
3133                 CNIC_WR16(dev, cp->kcq1.io_addr,
3134                           cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
3135
3136                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE) {
3137                         cp->arm_int(dev, status_idx);
3138                         break;
3139                 }
3140
3141                 new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
3142
3143                 if (new_status_idx != status_idx)
3144                         continue;
3145
3146                 CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
3147                           MAX_KCQ_IDX);
3148
3149                 cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
3150                                 status_idx, IGU_INT_ENABLE, 1);
3151
3152                 break;
3153         }
3154 }
3155
3156 static int cnic_service_bnx2x(void *data, void *status_blk)
3157 {
3158         struct cnic_dev *dev = data;
3159         struct cnic_local *cp = dev->cnic_priv;
3160
3161         if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
3162                 cnic_doirq(dev);
3163
3164         cnic_chk_pkt_rings(cp);
3165
3166         return 0;
3167 }
3168
3169 static void cnic_ulp_stop_one(struct cnic_local *cp, int if_type)
3170 {
3171         struct cnic_ulp_ops *ulp_ops;
3172
3173         if (if_type == CNIC_ULP_ISCSI)
3174                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
3175
3176         mutex_lock(&cnic_lock);
3177         ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3178                                             lockdep_is_held(&cnic_lock));
3179         if (!ulp_ops) {
3180                 mutex_unlock(&cnic_lock);
3181                 return;
3182         }
3183         set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3184         mutex_unlock(&cnic_lock);
3185
3186         if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3187                 ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
3188
3189         clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3190 }
3191
3192 static void cnic_ulp_stop(struct cnic_dev *dev)
3193 {
3194         struct cnic_local *cp = dev->cnic_priv;
3195         int if_type;
3196
3197         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++)
3198                 cnic_ulp_stop_one(cp, if_type);
3199 }
3200
3201 static void cnic_ulp_start(struct cnic_dev *dev)
3202 {
3203         struct cnic_local *cp = dev->cnic_priv;
3204         int if_type;
3205
3206         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
3207                 struct cnic_ulp_ops *ulp_ops;
3208
3209                 mutex_lock(&cnic_lock);
3210                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3211                                                     lockdep_is_held(&cnic_lock));
3212                 if (!ulp_ops || !ulp_ops->cnic_start) {
3213                         mutex_unlock(&cnic_lock);
3214                         continue;
3215                 }
3216                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3217                 mutex_unlock(&cnic_lock);
3218
3219                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3220                         ulp_ops->cnic_start(cp->ulp_handle[if_type]);
3221
3222                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3223         }
3224 }
3225
3226 static int cnic_copy_ulp_stats(struct cnic_dev *dev, int ulp_type)
3227 {
3228         struct cnic_local *cp = dev->cnic_priv;
3229         struct cnic_ulp_ops *ulp_ops;
3230         int rc;
3231
3232         mutex_lock(&cnic_lock);
3233         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
3234         if (ulp_ops && ulp_ops->cnic_get_stats)
3235                 rc = ulp_ops->cnic_get_stats(cp->ulp_handle[ulp_type]);
3236         else
3237                 rc = -ENODEV;
3238         mutex_unlock(&cnic_lock);
3239         return rc;
3240 }
3241
3242 static int cnic_ctl(void *data, struct cnic_ctl_info *info)
3243 {
3244         struct cnic_dev *dev = data;
3245         int ulp_type = CNIC_ULP_ISCSI;
3246
3247         switch (info->cmd) {
3248         case CNIC_CTL_STOP_CMD:
3249                 cnic_hold(dev);
3250
3251                 cnic_ulp_stop(dev);
3252                 cnic_stop_hw(dev);
3253
3254                 cnic_put(dev);
3255                 break;
3256         case CNIC_CTL_START_CMD:
3257                 cnic_hold(dev);
3258
3259                 if (!cnic_start_hw(dev))
3260                         cnic_ulp_start(dev);
3261
3262                 cnic_put(dev);
3263                 break;
3264         case CNIC_CTL_STOP_ISCSI_CMD: {
3265                 struct cnic_local *cp = dev->cnic_priv;
3266                 set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags);
3267                 queue_delayed_work(cnic_wq, &cp->delete_task, 0);
3268                 break;
3269         }
3270         case CNIC_CTL_COMPLETION_CMD: {
3271                 struct cnic_ctl_completion *comp = &info->data.comp;
3272                 u32 cid = BNX2X_SW_CID(comp->cid);
3273                 u32 l5_cid;
3274                 struct cnic_local *cp = dev->cnic_priv;
3275
3276                 if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
3277                         break;
3278
3279                 if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
3280                         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3281
3282                         if (unlikely(comp->error)) {
3283                                 set_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags);
3284                                 netdev_err(dev->netdev,
3285                                            "CID %x CFC delete comp error %x\n",
3286                                            cid, comp->error);
3287                         }
3288
3289                         ctx->wait_cond = 1;
3290                         wake_up(&ctx->waitq);
3291                 }
3292                 break;
3293         }
3294         case CNIC_CTL_FCOE_STATS_GET_CMD:
3295                 ulp_type = CNIC_ULP_FCOE;
3296                 /* fall through */
3297         case CNIC_CTL_ISCSI_STATS_GET_CMD:
3298                 cnic_hold(dev);
3299                 cnic_copy_ulp_stats(dev, ulp_type);
3300                 cnic_put(dev);
3301                 break;
3302
3303         default:
3304                 return -EINVAL;
3305         }
3306         return 0;
3307 }
3308
3309 static void cnic_ulp_init(struct cnic_dev *dev)
3310 {
3311         int i;
3312         struct cnic_local *cp = dev->cnic_priv;
3313
3314         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3315                 struct cnic_ulp_ops *ulp_ops;
3316
3317                 mutex_lock(&cnic_lock);
3318                 ulp_ops = cnic_ulp_tbl_prot(i);
3319                 if (!ulp_ops || !ulp_ops->cnic_init) {
3320                         mutex_unlock(&cnic_lock);
3321                         continue;
3322                 }
3323                 ulp_get(ulp_ops);
3324                 mutex_unlock(&cnic_lock);
3325
3326                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3327                         ulp_ops->cnic_init(dev);
3328
3329                 ulp_put(ulp_ops);
3330         }
3331 }
3332
3333 static void cnic_ulp_exit(struct cnic_dev *dev)
3334 {
3335         int i;
3336         struct cnic_local *cp = dev->cnic_priv;
3337
3338         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3339                 struct cnic_ulp_ops *ulp_ops;
3340
3341                 mutex_lock(&cnic_lock);
3342                 ulp_ops = cnic_ulp_tbl_prot(i);
3343                 if (!ulp_ops || !ulp_ops->cnic_exit) {
3344                         mutex_unlock(&cnic_lock);
3345                         continue;
3346                 }
3347                 ulp_get(ulp_ops);
3348                 mutex_unlock(&cnic_lock);
3349
3350                 if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3351                         ulp_ops->cnic_exit(dev);
3352
3353                 ulp_put(ulp_ops);
3354         }
3355 }
3356
3357 static int cnic_cm_offload_pg(struct cnic_sock *csk)
3358 {
3359         struct cnic_dev *dev = csk->dev;
3360         struct l4_kwq_offload_pg *l4kwqe;
3361         struct kwqe *wqes[1];
3362
3363         l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
3364         memset(l4kwqe, 0, sizeof(*l4kwqe));
3365         wqes[0] = (struct kwqe *) l4kwqe;
3366
3367         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
3368         l4kwqe->flags =
3369                 L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
3370         l4kwqe->l2hdr_nbytes = ETH_HLEN;
3371
3372         l4kwqe->da0 = csk->ha[0];
3373         l4kwqe->da1 = csk->ha[1];
3374         l4kwqe->da2 = csk->ha[2];
3375         l4kwqe->da3 = csk->ha[3];
3376         l4kwqe->da4 = csk->ha[4];
3377         l4kwqe->da5 = csk->ha[5];
3378
3379         l4kwqe->sa0 = dev->mac_addr[0];
3380         l4kwqe->sa1 = dev->mac_addr[1];
3381         l4kwqe->sa2 = dev->mac_addr[2];
3382         l4kwqe->sa3 = dev->mac_addr[3];
3383         l4kwqe->sa4 = dev->mac_addr[4];
3384         l4kwqe->sa5 = dev->mac_addr[5];
3385
3386         l4kwqe->etype = ETH_P_IP;
3387         l4kwqe->ipid_start = DEF_IPID_START;
3388         l4kwqe->host_opaque = csk->l5_cid;
3389
3390         if (csk->vlan_id) {
3391                 l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
3392                 l4kwqe->vlan_tag = csk->vlan_id;
3393                 l4kwqe->l2hdr_nbytes += 4;
3394         }
3395
3396         return dev->submit_kwqes(dev, wqes, 1);
3397 }
3398
3399 static int cnic_cm_update_pg(struct cnic_sock *csk)
3400 {
3401         struct cnic_dev *dev = csk->dev;
3402         struct l4_kwq_update_pg *l4kwqe;
3403         struct kwqe *wqes[1];
3404
3405         l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
3406         memset(l4kwqe, 0, sizeof(*l4kwqe));
3407         wqes[0] = (struct kwqe *) l4kwqe;
3408
3409         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
3410         l4kwqe->flags =
3411                 L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
3412         l4kwqe->pg_cid = csk->pg_cid;
3413
3414         l4kwqe->da0 = csk->ha[0];
3415         l4kwqe->da1 = csk->ha[1];
3416         l4kwqe->da2 = csk->ha[2];
3417         l4kwqe->da3 = csk->ha[3];
3418         l4kwqe->da4 = csk->ha[4];
3419         l4kwqe->da5 = csk->ha[5];
3420
3421         l4kwqe->pg_host_opaque = csk->l5_cid;
3422         l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
3423
3424         return dev->submit_kwqes(dev, wqes, 1);
3425 }
3426
3427 static int cnic_cm_upload_pg(struct cnic_sock *csk)
3428 {
3429         struct cnic_dev *dev = csk->dev;
3430         struct l4_kwq_upload *l4kwqe;
3431         struct kwqe *wqes[1];
3432
3433         l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
3434         memset(l4kwqe, 0, sizeof(*l4kwqe));
3435         wqes[0] = (struct kwqe *) l4kwqe;
3436
3437         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
3438         l4kwqe->flags =
3439                 L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
3440         l4kwqe->cid = csk->pg_cid;
3441
3442         return dev->submit_kwqes(dev, wqes, 1);
3443 }
3444
3445 static int cnic_cm_conn_req(struct cnic_sock *csk)
3446 {
3447         struct cnic_dev *dev = csk->dev;
3448         struct l4_kwq_connect_req1 *l4kwqe1;
3449         struct l4_kwq_connect_req2 *l4kwqe2;
3450         struct l4_kwq_connect_req3 *l4kwqe3;
3451         struct kwqe *wqes[3];
3452         u8 tcp_flags = 0;
3453         int num_wqes = 2;
3454
3455         l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
3456         l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
3457         l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
3458         memset(l4kwqe1, 0, sizeof(*l4kwqe1));
3459         memset(l4kwqe2, 0, sizeof(*l4kwqe2));
3460         memset(l4kwqe3, 0, sizeof(*l4kwqe3));
3461
3462         l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
3463         l4kwqe3->flags =
3464                 L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
3465         l4kwqe3->ka_timeout = csk->ka_timeout;
3466         l4kwqe3->ka_interval = csk->ka_interval;
3467         l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
3468         l4kwqe3->tos = csk->tos;
3469         l4kwqe3->ttl = csk->ttl;
3470         l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
3471         l4kwqe3->pmtu = csk->mtu;
3472         l4kwqe3->rcv_buf = csk->rcv_buf;
3473         l4kwqe3->snd_buf = csk->snd_buf;
3474         l4kwqe3->seed = csk->seed;
3475
3476         wqes[0] = (struct kwqe *) l4kwqe1;
3477         if (test_bit(SK_F_IPV6, &csk->flags)) {
3478                 wqes[1] = (struct kwqe *) l4kwqe2;
3479                 wqes[2] = (struct kwqe *) l4kwqe3;
3480                 num_wqes = 3;
3481
3482                 l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
3483                 l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
3484                 l4kwqe2->flags =
3485                         L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
3486                         L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
3487                 l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
3488                 l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
3489                 l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
3490                 l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
3491                 l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
3492                 l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
3493                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
3494                                sizeof(struct tcphdr);
3495         } else {
3496                 wqes[1] = (struct kwqe *) l4kwqe3;
3497                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
3498                                sizeof(struct tcphdr);
3499         }
3500
3501         l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
3502         l4kwqe1->flags =
3503                 (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
3504                  L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
3505         l4kwqe1->cid = csk->cid;
3506         l4kwqe1->pg_cid = csk->pg_cid;
3507         l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
3508         l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
3509         l4kwqe1->src_port = be16_to_cpu(csk->src_port);
3510         l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
3511         if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
3512                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
3513         if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
3514                 tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
3515         if (csk->tcp_flags & SK_TCP_NAGLE)
3516                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
3517         if (csk->tcp_flags & SK_TCP_TIMESTAMP)
3518                 tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
3519         if (csk->tcp_flags & SK_TCP_SACK)
3520                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
3521         if (csk->tcp_flags & SK_TCP_SEG_SCALING)
3522                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
3523
3524         l4kwqe1->tcp_flags = tcp_flags;
3525
3526         return dev->submit_kwqes(dev, wqes, num_wqes);
3527 }
3528
3529 static int cnic_cm_close_req(struct cnic_sock *csk)
3530 {
3531         struct cnic_dev *dev = csk->dev;
3532         struct l4_kwq_close_req *l4kwqe;
3533         struct kwqe *wqes[1];
3534
3535         l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
3536         memset(l4kwqe, 0, sizeof(*l4kwqe));
3537         wqes[0] = (struct kwqe *) l4kwqe;
3538
3539         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
3540         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
3541         l4kwqe->cid = csk->cid;
3542
3543         return dev->submit_kwqes(dev, wqes, 1);
3544 }
3545
3546 static int cnic_cm_abort_req(struct cnic_sock *csk)
3547 {
3548         struct cnic_dev *dev = csk->dev;
3549         struct l4_kwq_reset_req *l4kwqe;
3550         struct kwqe *wqes[1];
3551
3552         l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
3553         memset(l4kwqe, 0, sizeof(*l4kwqe));
3554         wqes[0] = (struct kwqe *) l4kwqe;
3555
3556         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
3557         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
3558         l4kwqe->cid = csk->cid;
3559
3560         return dev->submit_kwqes(dev, wqes, 1);
3561 }
3562
3563 static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
3564                           u32 l5_cid, struct cnic_sock **csk, void *context)
3565 {
3566         struct cnic_local *cp = dev->cnic_priv;
3567         struct cnic_sock *csk1;
3568
3569         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3570                 return -EINVAL;
3571
3572         if (cp->ctx_tbl) {
3573                 struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3574
3575                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3576                         return -EAGAIN;
3577         }
3578
3579         csk1 = &cp->csk_tbl[l5_cid];
3580         if (atomic_read(&csk1->ref_count))
3581                 return -EAGAIN;
3582
3583         if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
3584                 return -EBUSY;
3585
3586         csk1->dev = dev;
3587         csk1->cid = cid;
3588         csk1->l5_cid = l5_cid;
3589         csk1->ulp_type = ulp_type;
3590         csk1->context = context;
3591
3592         csk1->ka_timeout = DEF_KA_TIMEOUT;
3593         csk1->ka_interval = DEF_KA_INTERVAL;
3594         csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
3595         csk1->tos = DEF_TOS;
3596         csk1->ttl = DEF_TTL;
3597         csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
3598         csk1->rcv_buf = DEF_RCV_BUF;
3599         csk1->snd_buf = DEF_SND_BUF;
3600         csk1->seed = DEF_SEED;
3601
3602         *csk = csk1;
3603         return 0;
3604 }
3605
3606 static void cnic_cm_cleanup(struct cnic_sock *csk)
3607 {
3608         if (csk->src_port) {
3609                 struct cnic_dev *dev = csk->dev;
3610                 struct cnic_local *cp = dev->cnic_priv;
3611
3612                 cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
3613                 csk->src_port = 0;
3614         }
3615 }
3616
3617 static void cnic_close_conn(struct cnic_sock *csk)
3618 {
3619         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
3620                 cnic_cm_upload_pg(csk);
3621                 clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3622         }
3623         cnic_cm_cleanup(csk);
3624 }
3625
3626 static int cnic_cm_destroy(struct cnic_sock *csk)
3627 {
3628         if (!cnic_in_use(csk))
3629                 return -EINVAL;
3630
3631         csk_hold(csk);
3632         clear_bit(SK_F_INUSE, &csk->flags);
3633         smp_mb__after_clear_bit();
3634         while (atomic_read(&csk->ref_count) != 1)
3635                 msleep(1);
3636         cnic_cm_cleanup(csk);
3637
3638         csk->flags = 0;
3639         csk_put(csk);
3640         return 0;
3641 }
3642
3643 static inline u16 cnic_get_vlan(struct net_device *dev,
3644                                 struct net_device **vlan_dev)
3645 {
3646         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3647                 *vlan_dev = vlan_dev_real_dev(dev);
3648                 return vlan_dev_vlan_id(dev);
3649         }
3650         *vlan_dev = dev;
3651         return 0;
3652 }
3653
3654 static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
3655                              struct dst_entry **dst)
3656 {
3657 #if defined(CONFIG_INET)
3658         struct rtable *rt;
3659
3660         rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
3661         if (!IS_ERR(rt)) {
3662                 *dst = &rt->dst;
3663                 return 0;
3664         }
3665         return PTR_ERR(rt);
3666 #else
3667         return -ENETUNREACH;
3668 #endif
3669 }
3670
3671 static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
3672                              struct dst_entry **dst)
3673 {
3674 #if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
3675         struct flowi6 fl6;
3676
3677         memset(&fl6, 0, sizeof(fl6));
3678         fl6.daddr = dst_addr->sin6_addr;
3679         if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
3680                 fl6.flowi6_oif = dst_addr->sin6_scope_id;
3681
3682         *dst = ip6_route_output(&init_net, NULL, &fl6);
3683         if ((*dst)->error) {
3684                 dst_release(*dst);
3685                 *dst = NULL;
3686                 return -ENETUNREACH;
3687         } else
3688                 return 0;
3689 #endif
3690
3691         return -ENETUNREACH;
3692 }
3693
3694 static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
3695                                            int ulp_type)
3696 {
3697         struct cnic_dev *dev = NULL;
3698         struct dst_entry *dst;
3699         struct net_device *netdev = NULL;
3700         int err = -ENETUNREACH;
3701
3702         if (dst_addr->sin_family == AF_INET)
3703                 err = cnic_get_v4_route(dst_addr, &dst);
3704         else if (dst_addr->sin_family == AF_INET6) {
3705                 struct sockaddr_in6 *dst_addr6 =
3706                         (struct sockaddr_in6 *) dst_addr;
3707
3708                 err = cnic_get_v6_route(dst_addr6, &dst);
3709         } else
3710                 return NULL;
3711
3712         if (err)
3713                 return NULL;
3714
3715         if (!dst->dev)
3716                 goto done;
3717
3718         cnic_get_vlan(dst->dev, &netdev);
3719
3720         dev = cnic_from_netdev(netdev);
3721
3722 done:
3723         dst_release(dst);
3724         if (dev)
3725                 cnic_put(dev);
3726         return dev;
3727 }
3728
3729 static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3730 {
3731         struct cnic_dev *dev = csk->dev;
3732         struct cnic_local *cp = dev->cnic_priv;
3733
3734         return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
3735 }
3736
3737 static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3738 {
3739         struct cnic_dev *dev = csk->dev;
3740         struct cnic_local *cp = dev->cnic_priv;
3741         int is_v6, rc = 0;
3742         struct dst_entry *dst = NULL;
3743         struct net_device *realdev;
3744         __be16 local_port;
3745         u32 port_id;
3746
3747         if (saddr->local.v6.sin6_family == AF_INET6 &&
3748             saddr->remote.v6.sin6_family == AF_INET6)
3749                 is_v6 = 1;
3750         else if (saddr->local.v4.sin_family == AF_INET &&
3751                  saddr->remote.v4.sin_family == AF_INET)
3752                 is_v6 = 0;
3753         else
3754                 return -EINVAL;
3755
3756         clear_bit(SK_F_IPV6, &csk->flags);
3757
3758         if (is_v6) {
3759                 set_bit(SK_F_IPV6, &csk->flags);
3760                 cnic_get_v6_route(&saddr->remote.v6, &dst);
3761
3762                 memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
3763                        sizeof(struct in6_addr));
3764                 csk->dst_port = saddr->remote.v6.sin6_port;
3765                 local_port = saddr->local.v6.sin6_port;
3766
3767         } else {
3768                 cnic_get_v4_route(&saddr->remote.v4, &dst);
3769
3770                 csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
3771                 csk->dst_port = saddr->remote.v4.sin_port;
3772                 local_port = saddr->local.v4.sin_port;
3773         }
3774
3775         csk->vlan_id = 0;
3776         csk->mtu = dev->netdev->mtu;
3777         if (dst && dst->dev) {
3778                 u16 vlan = cnic_get_vlan(dst->dev, &realdev);
3779                 if (realdev == dev->netdev) {
3780                         csk->vlan_id = vlan;
3781                         csk->mtu = dst_mtu(dst);
3782                 }
3783         }
3784
3785         port_id = be16_to_cpu(local_port);
3786         if (port_id >= CNIC_LOCAL_PORT_MIN &&
3787             port_id < CNIC_LOCAL_PORT_MAX) {
3788                 if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
3789                         port_id = 0;
3790         } else
3791                 port_id = 0;
3792
3793         if (!port_id) {
3794                 port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
3795                 if (port_id == -1) {
3796                         rc = -ENOMEM;
3797                         goto err_out;
3798                 }
3799                 local_port = cpu_to_be16(port_id);
3800         }
3801         csk->src_port = local_port;
3802
3803 err_out:
3804         dst_release(dst);
3805         return rc;
3806 }
3807
3808 static void cnic_init_csk_state(struct cnic_sock *csk)
3809 {
3810         csk->state = 0;
3811         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3812         clear_bit(SK_F_CLOSING, &csk->flags);
3813 }
3814
3815 static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3816 {
3817         struct cnic_local *cp = csk->dev->cnic_priv;
3818         int err = 0;
3819
3820         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
3821                 return -EOPNOTSUPP;
3822
3823         if (!cnic_in_use(csk))
3824                 return -EINVAL;
3825
3826         if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
3827                 return -EINVAL;
3828
3829         cnic_init_csk_state(csk);
3830
3831         err = cnic_get_route(csk, saddr);
3832         if (err)
3833                 goto err_out;
3834
3835         err = cnic_resolve_addr(csk, saddr);
3836         if (!err)
3837                 return 0;
3838
3839 err_out:
3840         clear_bit(SK_F_CONNECT_START, &csk->flags);
3841         return err;
3842 }
3843
3844 static int cnic_cm_abort(struct cnic_sock *csk)
3845 {
3846         struct cnic_local *cp = csk->dev->cnic_priv;
3847         u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
3848
3849         if (!cnic_in_use(csk))
3850                 return -EINVAL;
3851
3852         if (cnic_abort_prep(csk))
3853                 return cnic_cm_abort_req(csk);
3854
3855         /* Getting here means that we haven't started connect, or
3856          * connect was not successful, or it has been reset by the target.
3857          */
3858
3859         cp->close_conn(csk, opcode);
3860         if (csk->state != opcode) {
3861                 /* Wait for remote reset sequence to complete */
3862                 while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3863                         msleep(1);
3864
3865                 return -EALREADY;
3866         }
3867
3868         return 0;
3869 }
3870
3871 static int cnic_cm_close(struct cnic_sock *csk)
3872 {
3873         if (!cnic_in_use(csk))
3874                 return -EINVAL;
3875
3876         if (cnic_close_prep(csk)) {
3877                 csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
3878                 return cnic_cm_close_req(csk);
3879         } else {
3880                 /* Wait for remote reset sequence to complete */
3881                 while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3882                         msleep(1);
3883
3884                 return -EALREADY;
3885         }
3886         return 0;
3887 }
3888
3889 static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
3890                            u8 opcode)
3891 {
3892         struct cnic_ulp_ops *ulp_ops;
3893         int ulp_type = csk->ulp_type;
3894
3895         rcu_read_lock();
3896         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
3897         if (ulp_ops) {
3898                 if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
3899                         ulp_ops->cm_connect_complete(csk);
3900                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3901                         ulp_ops->cm_close_complete(csk);
3902                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
3903                         ulp_ops->cm_remote_abort(csk);
3904                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
3905                         ulp_ops->cm_abort_complete(csk);
3906                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
3907                         ulp_ops->cm_remote_close(csk);
3908         }
3909         rcu_read_unlock();
3910 }
3911
3912 static int cnic_cm_set_pg(struct cnic_sock *csk)
3913 {
3914         if (cnic_offld_prep(csk)) {
3915                 if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3916                         cnic_cm_update_pg(csk);
3917                 else
3918                         cnic_cm_offload_pg(csk);
3919         }
3920         return 0;
3921 }
3922
3923 static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
3924 {
3925         struct cnic_local *cp = dev->cnic_priv;
3926         u32 l5_cid = kcqe->pg_host_opaque;
3927         u8 opcode = kcqe->op_code;
3928         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
3929
3930         csk_hold(csk);
3931         if (!cnic_in_use(csk))
3932                 goto done;
3933
3934         if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3935                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3936                 goto done;
3937         }
3938         /* Possible PG kcqe status:  SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
3939         if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
3940                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3941                 cnic_cm_upcall(cp, csk,
3942                                L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3943                 goto done;
3944         }
3945
3946         csk->pg_cid = kcqe->pg_cid;
3947         set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3948         cnic_cm_conn_req(csk);
3949
3950 done:
3951         csk_put(csk);
3952 }
3953
3954 static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
3955 {
3956         struct cnic_local *cp = dev->cnic_priv;
3957         struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
3958         u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
3959         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3960
3961         ctx->timestamp = jiffies;
3962         ctx->wait_cond = 1;
3963         wake_up(&ctx->waitq);
3964 }
3965
3966 static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
3967 {
3968         struct cnic_local *cp = dev->cnic_priv;
3969         struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
3970         u8 opcode = l4kcqe->op_code;
3971         u32 l5_cid;
3972         struct cnic_sock *csk;
3973
3974         if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
3975                 cnic_process_fcoe_term_conn(dev, kcqe);
3976                 return;
3977         }
3978         if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
3979             opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3980                 cnic_cm_process_offld_pg(dev, l4kcqe);
3981                 return;
3982         }
3983
3984         l5_cid = l4kcqe->conn_id;
3985         if (opcode & 0x80)
3986                 l5_cid = l4kcqe->cid;
3987         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3988                 return;
3989
3990         csk = &cp->csk_tbl[l5_cid];
3991         csk_hold(csk);
3992
3993         if (!cnic_in_use(csk)) {
3994                 csk_put(csk);
3995                 return;
3996         }
3997
3998         switch (opcode) {
3999         case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
4000                 if (l4kcqe->status != 0) {
4001                         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
4002                         cnic_cm_upcall(cp, csk,
4003                                        L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
4004                 }
4005                 break;
4006         case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
4007                 if (l4kcqe->status == 0)
4008                         set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
4009                 else if (l4kcqe->status ==
4010                          L4_KCQE_COMPLETION_STATUS_PARITY_ERROR)
4011                         set_bit(SK_F_HW_ERR, &csk->flags);
4012
4013                 smp_mb__before_clear_bit();
4014                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
4015                 cnic_cm_upcall(cp, csk, opcode);
4016                 break;
4017
4018         case L5CM_RAMROD_CMD_ID_CLOSE:
4019                 if (l4kcqe->status != 0) {
4020                         netdev_warn(dev->netdev, "RAMROD CLOSE compl with "
4021                                     "status 0x%x\n", l4kcqe->status);
4022                         opcode = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
4023                         /* Fall through */
4024                 } else {
4025                         break;
4026                 }
4027         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
4028         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
4029         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
4030         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
4031         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
4032                 if (l4kcqe->status == L4_KCQE_COMPLETION_STATUS_PARITY_ERROR)
4033                         set_bit(SK_F_HW_ERR, &csk->flags);
4034
4035                 cp->close_conn(csk, opcode);
4036                 break;
4037
4038         case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
4039                 /* after we already sent CLOSE_REQ */
4040                 if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) &&
4041                     !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags) &&
4042                     csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
4043                         cp->close_conn(csk, L4_KCQE_OPCODE_VALUE_RESET_COMP);
4044                 else
4045                         cnic_cm_upcall(cp, csk, opcode);
4046                 break;
4047         }
4048         csk_put(csk);
4049 }
4050
4051 static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
4052 {
4053         struct cnic_dev *dev = data;
4054         int i;
4055
4056         for (i = 0; i < num; i++)
4057                 cnic_cm_process_kcqe(dev, kcqe[i]);
4058 }
4059
4060 static struct cnic_ulp_ops cm_ulp_ops = {
4061         .indicate_kcqes         = cnic_cm_indicate_kcqe,
4062 };
4063
4064 static void cnic_cm_free_mem(struct cnic_dev *dev)
4065 {
4066         struct cnic_local *cp = dev->cnic_priv;
4067
4068         kfree(cp->csk_tbl);
4069         cp->csk_tbl = NULL;
4070         cnic_free_id_tbl(&cp->csk_port_tbl);
4071 }
4072
4073 static int cnic_cm_alloc_mem(struct cnic_dev *dev)
4074 {
4075         struct cnic_local *cp = dev->cnic_priv;
4076         u32 port_id;
4077
4078         cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ,
4079                               GFP_KERNEL);
4080         if (!cp->csk_tbl)
4081                 return -ENOMEM;
4082
4083         port_id = random32();
4084         port_id %= CNIC_LOCAL_PORT_RANGE;
4085         if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
4086                              CNIC_LOCAL_PORT_MIN, port_id)) {
4087                 cnic_cm_free_mem(dev);
4088                 return -ENOMEM;
4089         }
4090         return 0;
4091 }
4092
4093 static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
4094 {
4095         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
4096                 /* Unsolicited RESET_COMP or RESET_RECEIVED */
4097                 opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
4098                 csk->state = opcode;
4099         }
4100
4101         /* 1. If event opcode matches the expected event in csk->state
4102          * 2. If the expected event is CLOSE_COMP or RESET_COMP, we accept any
4103          *    event
4104          * 3. If the expected event is 0, meaning the connection was never
4105          *    never established, we accept the opcode from cm_abort.
4106          */
4107         if (opcode == csk->state || csk->state == 0 ||
4108             csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP ||
4109             csk->state == L4_KCQE_OPCODE_VALUE_RESET_COMP) {
4110                 if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
4111                         if (csk->state == 0)
4112                                 csk->state = opcode;
4113                         return 1;
4114                 }
4115         }
4116         return 0;
4117 }
4118
4119 static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
4120 {
4121         struct cnic_dev *dev = csk->dev;
4122         struct cnic_local *cp = dev->cnic_priv;
4123
4124         if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
4125                 cnic_cm_upcall(cp, csk, opcode);
4126                 return;
4127         }
4128
4129         clear_bit(SK_F_CONNECT_START, &csk->flags);
4130         cnic_close_conn(csk);
4131         csk->state = opcode;
4132         cnic_cm_upcall(cp, csk, opcode);
4133 }
4134
4135 static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
4136 {
4137 }
4138
4139 static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
4140 {
4141         u32 seed;
4142
4143         seed = random32();
4144         cnic_ctx_wr(dev, 45, 0, seed);
4145         return 0;
4146 }
4147
4148 static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
4149 {
4150         struct cnic_dev *dev = csk->dev;
4151         struct cnic_local *cp = dev->cnic_priv;
4152         struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
4153         union l5cm_specific_data l5_data;
4154         u32 cmd = 0;
4155         int close_complete = 0;
4156
4157         switch (opcode) {
4158         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
4159         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
4160         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
4161                 if (cnic_ready_to_close(csk, opcode)) {
4162                         if (test_bit(SK_F_HW_ERR, &csk->flags))
4163                                 close_complete = 1;
4164                         else if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
4165                                 cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
4166                         else
4167                                 close_complete = 1;
4168                 }
4169                 break;
4170         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
4171                 cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
4172                 break;
4173         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
4174                 close_complete = 1;
4175                 break;
4176         }
4177         if (cmd) {
4178                 memset(&l5_data, 0, sizeof(l5_data));
4179
4180                 cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
4181                                     &l5_data);
4182         } else if (close_complete) {
4183                 ctx->timestamp = jiffies;
4184                 cnic_close_conn(csk);
4185                 cnic_cm_upcall(cp, csk, csk->state);
4186         }
4187 }
4188
4189 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
4190 {
4191         struct cnic_local *cp = dev->cnic_priv;
4192
4193         if (!cp->ctx_tbl)
4194                 return;
4195
4196         if (!netif_running(dev->netdev))
4197                 return;
4198
4199         cnic_bnx2x_delete_wait(dev, 0);
4200
4201         cancel_delayed_work(&cp->delete_task);
4202         flush_workqueue(cnic_wq);
4203
4204         if (atomic_read(&cp->iscsi_conn) != 0)
4205                 netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
4206                             atomic_read(&cp->iscsi_conn));
4207 }
4208
4209 static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
4210 {
4211         struct cnic_local *cp = dev->cnic_priv;
4212         u32 pfid = cp->pfid;
4213         u32 port = CNIC_PORT(cp);
4214
4215         cnic_init_bnx2x_mac(dev);
4216         cnic_bnx2x_set_tcp_timestamp(dev, 1);
4217
4218         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
4219                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
4220
4221         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4222                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
4223         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4224                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
4225                 DEF_MAX_DA_COUNT);
4226
4227         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4228                  XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
4229         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4230                  XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
4231         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4232                  XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
4233         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4234                 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
4235
4236         CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
4237                 DEF_MAX_CWND);
4238         return 0;
4239 }
4240
4241 static void cnic_delete_task(struct work_struct *work)
4242 {
4243         struct cnic_local *cp;
4244         struct cnic_dev *dev;
4245         u32 i;
4246         int need_resched = 0;
4247
4248         cp = container_of(work, struct cnic_local, delete_task.work);
4249         dev = cp->dev;
4250
4251         if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) {
4252                 struct drv_ctl_info info;
4253
4254                 cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI);
4255
4256                 info.cmd = DRV_CTL_ISCSI_STOPPED_CMD;
4257                 cp->ethdev->drv_ctl(dev->netdev, &info);
4258         }
4259
4260         for (i = 0; i < cp->max_cid_space; i++) {
4261                 struct cnic_context *ctx = &cp->ctx_tbl[i];
4262                 int err;
4263
4264                 if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
4265                     !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4266                         continue;
4267
4268                 if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
4269                         need_resched = 1;
4270                         continue;
4271                 }
4272
4273                 if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4274                         continue;
4275
4276                 err = cnic_bnx2x_destroy_ramrod(dev, i);
4277
4278                 cnic_free_bnx2x_conn_resc(dev, i);
4279                 if (!err) {
4280                         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
4281                                 atomic_dec(&cp->iscsi_conn);
4282
4283                         clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
4284                 }
4285         }
4286
4287         if (need_resched)
4288                 queue_delayed_work(cnic_wq, &cp->delete_task,
4289                                    msecs_to_jiffies(10));
4290
4291 }
4292
4293 static int cnic_cm_open(struct cnic_dev *dev)
4294 {
4295         struct cnic_local *cp = dev->cnic_priv;
4296         int err;
4297
4298         err = cnic_cm_alloc_mem(dev);
4299         if (err)
4300                 return err;
4301
4302         err = cp->start_cm(dev);
4303
4304         if (err)
4305                 goto err_out;
4306
4307         INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
4308
4309         dev->cm_create = cnic_cm_create;
4310         dev->cm_destroy = cnic_cm_destroy;
4311         dev->cm_connect = cnic_cm_connect;
4312         dev->cm_abort = cnic_cm_abort;
4313         dev->cm_close = cnic_cm_close;
4314         dev->cm_select_dev = cnic_cm_select_dev;
4315
4316         cp->ulp_handle[CNIC_ULP_L4] = dev;
4317         rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
4318         return 0;
4319
4320 err_out:
4321         cnic_cm_free_mem(dev);
4322         return err;
4323 }
4324
4325 static int cnic_cm_shutdown(struct cnic_dev *dev)
4326 {
4327         struct cnic_local *cp = dev->cnic_priv;
4328         int i;
4329
4330         if (!cp->csk_tbl)
4331                 return 0;
4332
4333         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
4334                 struct cnic_sock *csk = &cp->csk_tbl[i];
4335
4336                 clear_bit(SK_F_INUSE, &csk->flags);
4337                 cnic_cm_cleanup(csk);
4338         }
4339         cnic_cm_free_mem(dev);
4340
4341         return 0;
4342 }
4343
4344 static void cnic_init_context(struct cnic_dev *dev, u32 cid)
4345 {
4346         u32 cid_addr;
4347         int i;
4348
4349         cid_addr = GET_CID_ADDR(cid);
4350
4351         for (i = 0; i < CTX_SIZE; i += 4)
4352                 cnic_ctx_wr(dev, cid_addr, i, 0);
4353 }
4354
4355 static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
4356 {
4357         struct cnic_local *cp = dev->cnic_priv;
4358         int ret = 0, i;
4359         u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
4360
4361         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4362                 return 0;
4363
4364         for (i = 0; i < cp->ctx_blks; i++) {
4365                 int j;
4366                 u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
4367                 u32 val;
4368
4369                 memset(cp->ctx_arr[i].ctx, 0, BNX2_PAGE_SIZE);
4370
4371                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
4372                         (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
4373                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
4374                         (u64) cp->ctx_arr[i].mapping >> 32);
4375                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
4376                         BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
4377                 for (j = 0; j < 10; j++) {
4378
4379                         val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
4380                         if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
4381                                 break;
4382                         udelay(5);
4383                 }
4384                 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
4385                         ret = -EBUSY;
4386                         break;
4387                 }
4388         }
4389         return ret;
4390 }
4391
4392 static void cnic_free_irq(struct cnic_dev *dev)
4393 {
4394         struct cnic_local *cp = dev->cnic_priv;
4395         struct cnic_eth_dev *ethdev = cp->ethdev;
4396
4397         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4398                 cp->disable_int_sync(dev);
4399                 tasklet_kill(&cp->cnic_irq_task);
4400                 free_irq(ethdev->irq_arr[0].vector, dev);
4401         }
4402 }
4403
4404 static int cnic_request_irq(struct cnic_dev *dev)
4405 {
4406         struct cnic_local *cp = dev->cnic_priv;
4407         struct cnic_eth_dev *ethdev = cp->ethdev;
4408         int err;
4409
4410         err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
4411         if (err)
4412                 tasklet_disable(&cp->cnic_irq_task);
4413
4414         return err;
4415 }
4416
4417 static int cnic_init_bnx2_irq(struct cnic_dev *dev)
4418 {
4419         struct cnic_local *cp = dev->cnic_priv;
4420         struct cnic_eth_dev *ethdev = cp->ethdev;
4421
4422         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4423                 int err, i = 0;
4424                 int sblk_num = cp->status_blk_num;
4425                 u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
4426                            BNX2_HC_SB_CONFIG_1;
4427
4428                 CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
4429
4430                 CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
4431                 CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
4432                 CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
4433
4434                 cp->last_status_idx = cp->status_blk.bnx2->status_idx;
4435                 tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix,
4436                              (unsigned long) dev);
4437                 err = cnic_request_irq(dev);
4438                 if (err)
4439                         return err;
4440
4441                 while (cp->status_blk.bnx2->status_completion_producer_index &&
4442                        i < 10) {
4443                         CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
4444                                 1 << (11 + sblk_num));
4445                         udelay(10);
4446                         i++;
4447                         barrier();
4448                 }
4449                 if (cp->status_blk.bnx2->status_completion_producer_index) {
4450                         cnic_free_irq(dev);
4451                         goto failed;
4452                 }
4453
4454         } else {
4455                 struct status_block *sblk = cp->status_blk.gen;
4456                 u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
4457                 int i = 0;
4458
4459                 while (sblk->status_completion_producer_index && i < 10) {
4460                         CNIC_WR(dev, BNX2_HC_COMMAND,
4461                                 hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
4462                         udelay(10);
4463                         i++;
4464                         barrier();
4465                 }
4466                 if (sblk->status_completion_producer_index)
4467                         goto failed;
4468
4469         }
4470         return 0;
4471
4472 failed:
4473         netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
4474         return -EBUSY;
4475 }
4476
4477 static void cnic_enable_bnx2_int(struct cnic_dev *dev)
4478 {
4479         struct cnic_local *cp = dev->cnic_priv;
4480         struct cnic_eth_dev *ethdev = cp->ethdev;
4481
4482         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4483                 return;
4484
4485         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4486                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
4487 }
4488
4489 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
4490 {
4491         struct cnic_local *cp = dev->cnic_priv;
4492         struct cnic_eth_dev *ethdev = cp->ethdev;
4493
4494         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4495                 return;
4496
4497         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4498                 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4499         CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
4500         synchronize_irq(ethdev->irq_arr[0].vector);
4501 }
4502
4503 static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
4504 {
4505         struct cnic_local *cp = dev->cnic_priv;
4506         struct cnic_eth_dev *ethdev = cp->ethdev;
4507         struct cnic_uio_dev *udev = cp->udev;
4508         u32 cid_addr, tx_cid, sb_id;
4509         u32 val, offset0, offset1, offset2, offset3;
4510         int i;
4511         struct bnx2_tx_bd *txbd;
4512         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4513         struct status_block *s_blk = cp->status_blk.gen;
4514
4515         sb_id = cp->status_blk_num;
4516         tx_cid = 20;
4517         cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
4518         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4519                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4520
4521                 tx_cid = TX_TSS_CID + sb_id - 1;
4522                 CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
4523                         (TX_TSS_CID << 7));
4524                 cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
4525         }
4526         cp->tx_cons = *cp->tx_cons_ptr;
4527
4528         cid_addr = GET_CID_ADDR(tx_cid);
4529         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
4530                 u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
4531
4532                 for (i = 0; i < PHY_CTX_SIZE; i += 4)
4533                         cnic_ctx_wr(dev, cid_addr2, i, 0);
4534
4535                 offset0 = BNX2_L2CTX_TYPE_XI;
4536                 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
4537                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
4538                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
4539         } else {
4540                 cnic_init_context(dev, tx_cid);
4541                 cnic_init_context(dev, tx_cid + 1);
4542
4543                 offset0 = BNX2_L2CTX_TYPE;
4544                 offset1 = BNX2_L2CTX_CMD_TYPE;
4545                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
4546                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
4547         }
4548         val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
4549         cnic_ctx_wr(dev, cid_addr, offset0, val);
4550
4551         val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
4552         cnic_ctx_wr(dev, cid_addr, offset1, val);
4553
4554         txbd = udev->l2_ring;
4555
4556         buf_map = udev->l2_buf_map;
4557         for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i++, txbd++) {
4558                 txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
4559                 txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4560         }
4561         val = (u64) ring_map >> 32;
4562         cnic_ctx_wr(dev, cid_addr, offset2, val);
4563         txbd->tx_bd_haddr_hi = val;
4564
4565         val = (u64) ring_map & 0xffffffff;
4566         cnic_ctx_wr(dev, cid_addr, offset3, val);
4567         txbd->tx_bd_haddr_lo = val;
4568 }
4569
4570 static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
4571 {
4572         struct cnic_local *cp = dev->cnic_priv;
4573         struct cnic_eth_dev *ethdev = cp->ethdev;
4574         struct cnic_uio_dev *udev = cp->udev;
4575         u32 cid_addr, sb_id, val, coal_reg, coal_val;
4576         int i;
4577         struct bnx2_rx_bd *rxbd;
4578         struct status_block *s_blk = cp->status_blk.gen;
4579         dma_addr_t ring_map = udev->l2_ring_map;
4580
4581         sb_id = cp->status_blk_num;
4582         cnic_init_context(dev, 2);
4583         cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
4584         coal_reg = BNX2_HC_COMMAND;
4585         coal_val = CNIC_RD(dev, coal_reg);
4586         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4587                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4588
4589                 cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
4590                 coal_reg = BNX2_HC_COALESCE_NOW;
4591                 coal_val = 1 << (11 + sb_id);
4592         }
4593         i = 0;
4594         while (!(*cp->rx_cons_ptr != 0) && i < 10) {
4595                 CNIC_WR(dev, coal_reg, coal_val);
4596                 udelay(10);
4597                 i++;
4598                 barrier();
4599         }
4600         cp->rx_cons = *cp->rx_cons_ptr;
4601
4602         cid_addr = GET_CID_ADDR(2);
4603         val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4604               BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4605         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
4606
4607         if (sb_id == 0)
4608                 val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
4609         else
4610                 val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
4611         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
4612
4613         rxbd = udev->l2_ring + BNX2_PAGE_SIZE;
4614         for (i = 0; i < BNX2_MAX_RX_DESC_CNT; i++, rxbd++) {
4615                 dma_addr_t buf_map;
4616                 int n = (i % cp->l2_rx_ring_size) + 1;
4617
4618                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4619                 rxbd->rx_bd_len = cp->l2_single_buf_size;
4620                 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
4621                 rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
4622                 rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4623         }
4624         val = (u64) (ring_map + BNX2_PAGE_SIZE) >> 32;
4625         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
4626         rxbd->rx_bd_haddr_hi = val;
4627
4628         val = (u64) (ring_map + BNX2_PAGE_SIZE) & 0xffffffff;
4629         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
4630         rxbd->rx_bd_haddr_lo = val;
4631
4632         val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
4633         cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
4634 }
4635
4636 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
4637 {
4638         struct kwqe *wqes[1], l2kwqe;
4639
4640         memset(&l2kwqe, 0, sizeof(l2kwqe));
4641         wqes[0] = &l2kwqe;
4642         l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
4643                               (L2_KWQE_OPCODE_VALUE_FLUSH <<
4644                                KWQE_OPCODE_SHIFT) | 2;
4645         dev->submit_kwqes(dev, wqes, 1);
4646 }
4647
4648 static void cnic_set_bnx2_mac(struct cnic_dev *dev)
4649 {
4650         struct cnic_local *cp = dev->cnic_priv;
4651         u32 val;
4652
4653         val = cp->func << 2;
4654
4655         cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
4656
4657         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4658                               BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
4659         dev->mac_addr[0] = (u8) (val >> 8);
4660         dev->mac_addr[1] = (u8) val;
4661
4662         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
4663
4664         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4665                               BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
4666         dev->mac_addr[2] = (u8) (val >> 24);
4667         dev->mac_addr[3] = (u8) (val >> 16);
4668         dev->mac_addr[4] = (u8) (val >> 8);
4669         dev->mac_addr[5] = (u8) val;
4670
4671         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
4672
4673         val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
4674         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4675                 val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
4676
4677         CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
4678         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
4679         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
4680 }
4681
4682 static int cnic_start_bnx2_hw(struct cnic_dev *dev)
4683 {
4684         struct cnic_local *cp = dev->cnic_priv;
4685         struct cnic_eth_dev *ethdev = cp->ethdev;
4686         struct status_block *sblk = cp->status_blk.gen;
4687         u32 val, kcq_cid_addr, kwq_cid_addr;
4688         int err;
4689
4690         cnic_set_bnx2_mac(dev);
4691
4692         val = CNIC_RD(dev, BNX2_MQ_CONFIG);
4693         val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4694         if (BNX2_PAGE_BITS > 12)
4695                 val |= (12 - 8)  << 4;
4696         else
4697                 val |= (BNX2_PAGE_BITS - 8)  << 4;
4698
4699         CNIC_WR(dev, BNX2_MQ_CONFIG, val);
4700
4701         CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
4702         CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
4703         CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
4704
4705         err = cnic_setup_5709_context(dev, 1);
4706         if (err)
4707                 return err;
4708
4709         cnic_init_context(dev, KWQ_CID);
4710         cnic_init_context(dev, KCQ_CID);
4711
4712         kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
4713         cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
4714
4715         cp->max_kwq_idx = MAX_KWQ_IDX;
4716         cp->kwq_prod_idx = 0;
4717         cp->kwq_con_idx = 0;
4718         set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
4719
4720         if (CHIP_NUM(cp) == CHIP_NUM_5706 || CHIP_NUM(cp) == CHIP_NUM_5708)
4721                 cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
4722         else
4723                 cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
4724
4725         /* Initialize the kernel work queue context. */
4726         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4727               (BNX2_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4728         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
4729
4730         val = (BNX2_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
4731         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4732
4733         val = ((BNX2_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
4734         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4735
4736         val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
4737         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4738
4739         val = (u32) cp->kwq_info.pgtbl_map;
4740         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4741
4742         kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
4743         cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
4744
4745         cp->kcq1.sw_prod_idx = 0;
4746         cp->kcq1.hw_prod_idx_ptr =
4747                 &sblk->status_completion_producer_index;
4748
4749         cp->kcq1.status_idx_ptr = &sblk->status_idx;
4750
4751         /* Initialize the kernel complete queue context. */
4752         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4753               (BNX2_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4754         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
4755
4756         val = (BNX2_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
4757         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4758
4759         val = ((BNX2_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
4760         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4761
4762         val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
4763         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4764
4765         val = (u32) cp->kcq1.dma.pgtbl_map;
4766         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4767
4768         cp->int_num = 0;
4769         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4770                 struct status_block_msix *msblk = cp->status_blk.bnx2;
4771                 u32 sb_id = cp->status_blk_num;
4772                 u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
4773
4774                 cp->kcq1.hw_prod_idx_ptr =
4775                         &msblk->status_completion_producer_index;
4776                 cp->kcq1.status_idx_ptr = &msblk->status_idx;
4777                 cp->kwq_con_idx_ptr = &msblk->status_cmd_consumer_index;
4778                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
4779                 cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4780                 cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4781         }
4782
4783         /* Enable Commnad Scheduler notification when we write to the
4784          * host producer index of the kernel contexts. */
4785         CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
4786
4787         /* Enable Command Scheduler notification when we write to either
4788          * the Send Queue or Receive Queue producer indexes of the kernel
4789          * bypass contexts. */
4790         CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
4791         CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
4792
4793         /* Notify COM when the driver post an application buffer. */
4794         CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
4795
4796         /* Set the CP and COM doorbells.  These two processors polls the
4797          * doorbell for a non zero value before running.  This must be done
4798          * after setting up the kernel queue contexts. */
4799         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
4800         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
4801
4802         cnic_init_bnx2_tx_ring(dev);
4803         cnic_init_bnx2_rx_ring(dev);
4804
4805         err = cnic_init_bnx2_irq(dev);
4806         if (err) {
4807                 netdev_err(dev->netdev, "cnic_init_irq failed\n");
4808                 cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
4809                 cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
4810                 return err;
4811         }
4812
4813         return 0;
4814 }
4815
4816 static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
4817 {
4818         struct cnic_local *cp = dev->cnic_priv;
4819         struct cnic_eth_dev *ethdev = cp->ethdev;
4820         u32 start_offset = ethdev->ctx_tbl_offset;
4821         int i;
4822
4823         for (i = 0; i < cp->ctx_blks; i++) {
4824                 struct cnic_ctx *ctx = &cp->ctx_arr[i];
4825                 dma_addr_t map = ctx->mapping;
4826
4827                 if (cp->ctx_align) {
4828                         unsigned long mask = cp->ctx_align - 1;
4829
4830                         map = (map + mask) & ~mask;
4831                 }
4832
4833                 cnic_ctx_tbl_wr(dev, start_offset + i, map);
4834         }
4835 }
4836
4837 static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
4838 {
4839         struct cnic_local *cp = dev->cnic_priv;
4840         struct cnic_eth_dev *ethdev = cp->ethdev;
4841         int err = 0;
4842
4843         tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh,
4844                      (unsigned long) dev);
4845         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
4846                 err = cnic_request_irq(dev);
4847
4848         return err;
4849 }
4850
4851 static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
4852                                                 u16 sb_id, u8 sb_index,
4853                                                 u8 disable)
4854 {
4855
4856         u32 addr = BAR_CSTRORM_INTMEM +
4857                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4858                         offsetof(struct hc_status_block_data_e1x, index_data) +
4859                         sizeof(struct hc_index_data)*sb_index +
4860                         offsetof(struct hc_index_data, flags);
4861         u16 flags = CNIC_RD16(dev, addr);
4862         /* clear and set */
4863         flags &= ~HC_INDEX_DATA_HC_ENABLED;
4864         flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
4865                   HC_INDEX_DATA_HC_ENABLED);
4866         CNIC_WR16(dev, addr, flags);
4867 }
4868
4869 static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
4870 {
4871         struct cnic_local *cp = dev->cnic_priv;
4872         u8 sb_id = cp->status_blk_num;
4873
4874         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4875                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4876                         offsetof(struct hc_status_block_data_e1x, index_data) +
4877                         sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
4878                         offsetof(struct hc_index_data, timeout), 64 / 4);
4879         cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
4880 }
4881
4882 static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
4883 {
4884 }
4885
4886 static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
4887                                     struct client_init_ramrod_data *data)
4888 {
4889         struct cnic_local *cp = dev->cnic_priv;
4890         struct cnic_uio_dev *udev = cp->udev;
4891         union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
4892         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4893         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4894         int i;
4895         u32 cli = cp->ethdev->iscsi_l2_client_id;
4896         u32 val;
4897
4898         memset(txbd, 0, BNX2_PAGE_SIZE);
4899
4900         buf_map = udev->l2_buf_map;
4901         for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i += 3, txbd += 3) {
4902                 struct eth_tx_start_bd *start_bd = &txbd->start_bd;
4903                 struct eth_tx_parse_bd_e1x *pbd_e1x =
4904                         &((txbd + 1)->parse_bd_e1x);
4905                 struct eth_tx_parse_bd_e2 *pbd_e2 = &((txbd + 1)->parse_bd_e2);
4906                 struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
4907
4908                 start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4909                 start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4910                 reg_bd->addr_hi = start_bd->addr_hi;
4911                 reg_bd->addr_lo = start_bd->addr_lo + 0x10;
4912                 start_bd->nbytes = cpu_to_le16(0x10);
4913                 start_bd->nbd = cpu_to_le16(3);
4914                 start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
4915                 start_bd->general_data &= ~ETH_TX_START_BD_PARSE_NBDS;
4916                 start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
4917
4918                 if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
4919                         pbd_e2->parsing_data = (UNICAST_ADDRESS <<
4920                                  ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE_SHIFT);
4921                 else
4922                          pbd_e1x->global_data = (UNICAST_ADDRESS <<
4923                                 ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE_SHIFT);
4924         }
4925
4926         val = (u64) ring_map >> 32;
4927         txbd->next_bd.addr_hi = cpu_to_le32(val);
4928
4929         data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
4930
4931         val = (u64) ring_map & 0xffffffff;
4932         txbd->next_bd.addr_lo = cpu_to_le32(val);
4933
4934         data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
4935
4936         /* Other ramrod params */
4937         data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
4938         data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
4939
4940         /* reset xstorm per client statistics */
4941         if (cli < MAX_STAT_COUNTER_ID) {
4942                 data->general.statistics_zero_flg = 1;
4943                 data->general.statistics_en_flg = 1;
4944                 data->general.statistics_counter_id = cli;
4945         }
4946
4947         cp->tx_cons_ptr =
4948                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
4949 }
4950
4951 static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
4952                                     struct client_init_ramrod_data *data)
4953 {
4954         struct cnic_local *cp = dev->cnic_priv;
4955         struct cnic_uio_dev *udev = cp->udev;
4956         struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
4957                                 BNX2_PAGE_SIZE);
4958         struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
4959                                 (udev->l2_ring + (2 * BNX2_PAGE_SIZE));
4960         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4961         int i;
4962         u32 cli = cp->ethdev->iscsi_l2_client_id;
4963         int cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4964         u32 val;
4965         dma_addr_t ring_map = udev->l2_ring_map;
4966
4967         /* General data */
4968         data->general.client_id = cli;
4969         data->general.activate_flg = 1;
4970         data->general.sp_client_id = cli;
4971         data->general.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
4972         data->general.func_id = cp->pfid;
4973
4974         for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
4975                 dma_addr_t buf_map;
4976                 int n = (i % cp->l2_rx_ring_size) + 1;
4977
4978                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4979                 rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4980                 rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4981         }
4982
4983         val = (u64) (ring_map + BNX2_PAGE_SIZE) >> 32;
4984         rxbd->addr_hi = cpu_to_le32(val);
4985         data->rx.bd_page_base.hi = cpu_to_le32(val);
4986
4987         val = (u64) (ring_map + BNX2_PAGE_SIZE) & 0xffffffff;
4988         rxbd->addr_lo = cpu_to_le32(val);
4989         data->rx.bd_page_base.lo = cpu_to_le32(val);
4990
4991         rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
4992         val = (u64) (ring_map + (2 * BNX2_PAGE_SIZE)) >> 32;
4993         rxcqe->addr_hi = cpu_to_le32(val);
4994         data->rx.cqe_page_base.hi = cpu_to_le32(val);
4995
4996         val = (u64) (ring_map + (2 * BNX2_PAGE_SIZE)) & 0xffffffff;
4997         rxcqe->addr_lo = cpu_to_le32(val);
4998         data->rx.cqe_page_base.lo = cpu_to_le32(val);
4999
5000         /* Other ramrod params */
5001         data->rx.client_qzone_id = cl_qzone_id;
5002         data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
5003         data->rx.status_block_id = BNX2X_DEF_SB_ID;
5004
5005         data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
5006
5007         data->rx.max_bytes_on_bd = cpu_to_le16(cp->l2_single_buf_size);
5008         data->rx.outer_vlan_removal_enable_flg = 1;
5009         data->rx.silent_vlan_removal_flg = 1;
5010         data->rx.silent_vlan_value = 0;
5011         data->rx.silent_vlan_mask = 0xffff;
5012
5013         cp->rx_cons_ptr =
5014                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
5015         cp->rx_cons = *cp->rx_cons_ptr;
5016 }
5017
5018 static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
5019 {
5020         struct cnic_local *cp = dev->cnic_priv;
5021         u32 pfid = cp->pfid;
5022
5023         cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
5024                            CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
5025         cp->kcq1.sw_prod_idx = 0;
5026
5027         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
5028                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
5029
5030                 cp->kcq1.hw_prod_idx_ptr =
5031                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
5032                 cp->kcq1.status_idx_ptr =
5033                         &sb->sb.running_index[SM_RX_ID];
5034         } else {
5035                 struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
5036
5037                 cp->kcq1.hw_prod_idx_ptr =
5038                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
5039                 cp->kcq1.status_idx_ptr =
5040                         &sb->sb.running_index[SM_RX_ID];
5041         }
5042
5043         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
5044                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
5045
5046                 cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
5047                                         USTORM_FCOE_EQ_PROD_OFFSET(pfid);
5048                 cp->kcq2.sw_prod_idx = 0;
5049                 cp->kcq2.hw_prod_idx_ptr =
5050                         &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
5051                 cp->kcq2.status_idx_ptr =
5052                         &sb->sb.running_index[SM_RX_ID];
5053         }
5054 }
5055
5056 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
5057 {
5058         struct cnic_local *cp = dev->cnic_priv;
5059         struct cnic_eth_dev *ethdev = cp->ethdev;
5060         int func = CNIC_FUNC(cp), ret;
5061         u32 pfid;
5062
5063         dev->stats_addr = ethdev->addr_drv_info_to_mcp;
5064         cp->port_mode = CHIP_PORT_MODE_NONE;
5065
5066         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
5067                 u32 val;
5068
5069                 pci_read_config_dword(dev->pcidev, PCICFG_ME_REGISTER, &val);
5070                 cp->func = (u8) ((val & ME_REG_ABS_PF_NUM) >>
5071                                  ME_REG_ABS_PF_NUM_SHIFT);
5072                 func = CNIC_FUNC(cp);
5073
5074                 val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN_OVWR);
5075                 if (!(val & 1))
5076                         val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN);
5077                 else
5078                         val = (val >> 1) & 1;
5079
5080                 if (val) {
5081                         cp->port_mode = CHIP_4_PORT_MODE;
5082                         cp->pfid = func >> 1;
5083                 } else {
5084                         cp->port_mode = CHIP_2_PORT_MODE;
5085                         cp->pfid = func & 0x6;
5086                 }
5087         } else {
5088                 cp->pfid = func;
5089         }
5090         pfid = cp->pfid;
5091
5092         ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
5093                                cp->iscsi_start_cid, 0);
5094
5095         if (ret)
5096                 return -ENOMEM;
5097
5098         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
5099                 ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl, dev->max_fcoe_conn,
5100                                         cp->fcoe_start_cid, 0);
5101
5102                 if (ret)
5103                         return -ENOMEM;
5104         }
5105
5106         cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
5107
5108         cnic_init_bnx2x_kcq(dev);
5109
5110         /* Only 1 EQ */
5111         CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
5112         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5113                 CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
5114         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5115                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
5116                 cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
5117         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5118                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
5119                 (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
5120         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5121                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
5122                 cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
5123         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5124                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
5125                 (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
5126         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
5127                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
5128         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
5129                 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
5130         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
5131                 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
5132                 HC_INDEX_ISCSI_EQ_CONS);
5133
5134         CNIC_WR(dev, BAR_USTRORM_INTMEM +
5135                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
5136                 cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
5137         CNIC_WR(dev, BAR_USTRORM_INTMEM +
5138                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
5139                 (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
5140
5141         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
5142                 TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
5143
5144         cnic_setup_bnx2x_context(dev);
5145
5146         ret = cnic_init_bnx2x_irq(dev);
5147         if (ret)
5148                 return ret;
5149
5150         return 0;
5151 }
5152
5153 static void cnic_init_rings(struct cnic_dev *dev)
5154 {
5155         struct cnic_local *cp = dev->cnic_priv;
5156         struct cnic_uio_dev *udev = cp->udev;
5157
5158         if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
5159                 return;
5160
5161         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
5162                 cnic_init_bnx2_tx_ring(dev);
5163                 cnic_init_bnx2_rx_ring(dev);
5164                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5165         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
5166                 u32 cli = cp->ethdev->iscsi_l2_client_id;
5167                 u32 cid = cp->ethdev->iscsi_l2_cid;
5168                 u32 cl_qzone_id;
5169                 struct client_init_ramrod_data *data;
5170                 union l5cm_specific_data l5_data;
5171                 struct ustorm_eth_rx_producers rx_prods = {0};
5172                 u32 off, i, *cid_ptr;
5173
5174                 rx_prods.bd_prod = 0;
5175                 rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
5176                 barrier();
5177
5178                 cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
5179
5180                 off = BAR_USTRORM_INTMEM +
5181                         (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) ?
5182                          USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
5183                          USTORM_RX_PRODS_E1X_OFFSET(CNIC_PORT(cp), cli));
5184
5185                 for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
5186                         CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
5187
5188                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
5189
5190                 data = udev->l2_buf;
5191                 cid_ptr = udev->l2_buf + 12;
5192
5193                 memset(data, 0, sizeof(*data));
5194
5195                 cnic_init_bnx2x_tx_ring(dev, data);
5196                 cnic_init_bnx2x_rx_ring(dev, data);
5197
5198                 l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
5199                 l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
5200
5201                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5202
5203                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
5204                         cid, ETH_CONNECTION_TYPE, &l5_data);
5205
5206                 i = 0;
5207                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
5208                        ++i < 10)
5209                         msleep(1);
5210
5211                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
5212                         netdev_err(dev->netdev,
5213                                 "iSCSI CLIENT_SETUP did not complete\n");
5214                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5215                 cnic_ring_ctl(dev, cid, cli, 1);
5216                 *cid_ptr = cid;
5217         }
5218 }
5219
5220 static void cnic_shutdown_rings(struct cnic_dev *dev)
5221 {
5222         struct cnic_local *cp = dev->cnic_priv;
5223         struct cnic_uio_dev *udev = cp->udev;
5224         void *rx_ring;
5225
5226         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
5227                 return;
5228
5229         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
5230                 cnic_shutdown_bnx2_rx_ring(dev);
5231         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
5232                 u32 cli = cp->ethdev->iscsi_l2_client_id;
5233                 u32 cid = cp->ethdev->iscsi_l2_cid;
5234                 union l5cm_specific_data l5_data;
5235                 int i;
5236
5237                 cnic_ring_ctl(dev, cid, cli, 0);
5238
5239                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
5240
5241                 l5_data.phy_address.lo = cli;
5242                 l5_data.phy_address.hi = 0;
5243                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
5244                         cid, ETH_CONNECTION_TYPE, &l5_data);
5245                 i = 0;
5246                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
5247                        ++i < 10)
5248                         msleep(1);
5249
5250                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
5251                         netdev_err(dev->netdev,
5252                                 "iSCSI CLIENT_HALT did not complete\n");
5253                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5254
5255                 memset(&l5_data, 0, sizeof(l5_data));
5256                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
5257                         cid, NONE_CONNECTION_TYPE, &l5_data);
5258                 msleep(10);
5259         }
5260         clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5261         rx_ring = udev->l2_ring + BNX2_PAGE_SIZE;
5262         memset(rx_ring, 0, BNX2_PAGE_SIZE);
5263 }
5264
5265 static int cnic_register_netdev(struct cnic_dev *dev)
5266 {
5267         struct cnic_local *cp = dev->cnic_priv;
5268         struct cnic_eth_dev *ethdev = cp->ethdev;
5269         int err;
5270
5271         if (!ethdev)
5272                 return -ENODEV;
5273
5274         if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
5275                 return 0;
5276
5277         err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
5278         if (err)
5279                 netdev_err(dev->netdev, "register_cnic failed\n");
5280
5281         return err;
5282 }
5283
5284 static void cnic_unregister_netdev(struct cnic_dev *dev)
5285 {
5286         struct cnic_local *cp = dev->cnic_priv;
5287         struct cnic_eth_dev *ethdev = cp->ethdev;
5288
5289         if (!ethdev)
5290                 return;
5291
5292         ethdev->drv_unregister_cnic(dev->netdev);
5293 }
5294
5295 static int cnic_start_hw(struct cnic_dev *dev)
5296 {
5297         struct cnic_local *cp = dev->cnic_priv;
5298         struct cnic_eth_dev *ethdev = cp->ethdev;
5299         int err;
5300
5301         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
5302                 return -EALREADY;
5303
5304         dev->regview = ethdev->io_base;
5305         pci_dev_get(dev->pcidev);
5306         cp->func = PCI_FUNC(dev->pcidev->devfn);
5307         cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
5308         cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
5309
5310         err = cp->alloc_resc(dev);
5311         if (err) {
5312                 netdev_err(dev->netdev, "allocate resource failure\n");
5313                 goto err1;
5314         }
5315
5316         err = cp->start_hw(dev);
5317         if (err)
5318                 goto err1;
5319
5320         err = cnic_cm_open(dev);
5321         if (err)
5322                 goto err1;
5323
5324         set_bit(CNIC_F_CNIC_UP, &dev->flags);
5325
5326         cp->enable_int(dev);
5327
5328         return 0;
5329
5330 err1:
5331         cp->free_resc(dev);
5332         pci_dev_put(dev->pcidev);
5333         return err;
5334 }
5335
5336 static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
5337 {
5338         cnic_disable_bnx2_int_sync(dev);
5339
5340         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
5341         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
5342
5343         cnic_init_context(dev, KWQ_CID);
5344         cnic_init_context(dev, KCQ_CID);
5345
5346         cnic_setup_5709_context(dev, 0);
5347         cnic_free_irq(dev);
5348
5349         cnic_free_resc(dev);
5350 }
5351
5352
5353 static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
5354 {
5355         struct cnic_local *cp = dev->cnic_priv;
5356         u32 hc_index = HC_INDEX_ISCSI_EQ_CONS;
5357         u32 sb_id = cp->status_blk_num;
5358         u32 idx_off, syn_off;
5359
5360         cnic_free_irq(dev);
5361
5362         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
5363                 idx_off = offsetof(struct hc_status_block_e2, index_values) +
5364                           (hc_index * sizeof(u16));
5365
5366                 syn_off = CSTORM_HC_SYNC_LINE_INDEX_E2_OFFSET(hc_index, sb_id);
5367         } else {
5368                 idx_off = offsetof(struct hc_status_block_e1x, index_values) +
5369                           (hc_index * sizeof(u16));
5370
5371                 syn_off = CSTORM_HC_SYNC_LINE_INDEX_E1X_OFFSET(hc_index, sb_id);
5372         }
5373         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + syn_off, 0);
5374         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_STATUS_BLOCK_OFFSET(sb_id) +
5375                   idx_off, 0);
5376
5377         *cp->kcq1.hw_prod_idx_ptr = 0;
5378         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5379                 CSTORM_ISCSI_EQ_CONS_OFFSET(cp->pfid, 0), 0);
5380         CNIC_WR16(dev, cp->kcq1.io_addr, 0);
5381         cnic_free_resc(dev);
5382 }
5383
5384 static void cnic_stop_hw(struct cnic_dev *dev)
5385 {
5386         if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5387                 struct cnic_local *cp = dev->cnic_priv;
5388                 int i = 0;
5389
5390                 /* Need to wait for the ring shutdown event to complete
5391                  * before clearing the CNIC_UP flag.
5392                  */
5393                 while (cp->udev && cp->udev->uio_dev != -1 && i < 15) {
5394                         msleep(100);
5395                         i++;
5396                 }
5397                 cnic_shutdown_rings(dev);
5398                 cp->stop_cm(dev);
5399                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
5400                 RCU_INIT_POINTER(cp->ulp_ops[CNIC_ULP_L4], NULL);
5401                 synchronize_rcu();
5402                 cnic_cm_shutdown(dev);
5403                 cp->stop_hw(dev);
5404                 pci_dev_put(dev->pcidev);
5405         }
5406 }
5407
5408 static void cnic_free_dev(struct cnic_dev *dev)
5409 {
5410         int i = 0;
5411
5412         while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
5413                 msleep(100);
5414                 i++;
5415         }
5416         if (atomic_read(&dev->ref_count) != 0)
5417                 netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
5418
5419         netdev_info(dev->netdev, "Removed CNIC device\n");
5420         dev_put(dev->netdev);
5421         kfree(dev);
5422 }
5423
5424 static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
5425                                        struct pci_dev *pdev)
5426 {
5427         struct cnic_dev *cdev;
5428         struct cnic_local *cp;
5429         int alloc_size;
5430
5431         alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
5432
5433         cdev = kzalloc(alloc_size , GFP_KERNEL);
5434         if (cdev == NULL) {
5435                 netdev_err(dev, "allocate dev struct failure\n");
5436                 return NULL;
5437         }
5438
5439         cdev->netdev = dev;
5440         cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
5441         cdev->register_device = cnic_register_device;
5442         cdev->unregister_device = cnic_unregister_device;
5443         cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
5444
5445         cp = cdev->cnic_priv;
5446         cp->dev = cdev;
5447         cp->l2_single_buf_size = 0x400;
5448         cp->l2_rx_ring_size = 3;
5449
5450         spin_lock_init(&cp->cnic_ulp_lock);
5451
5452         netdev_info(dev, "Added CNIC device\n");
5453
5454         return cdev;
5455 }
5456
5457 static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
5458 {
5459         struct pci_dev *pdev;
5460         struct cnic_dev *cdev;
5461         struct cnic_local *cp;
5462         struct cnic_eth_dev *ethdev = NULL;
5463         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5464
5465         probe = symbol_get(bnx2_cnic_probe);
5466         if (probe) {
5467                 ethdev = (*probe)(dev);
5468                 symbol_put(bnx2_cnic_probe);
5469         }
5470         if (!ethdev)
5471                 return NULL;
5472
5473         pdev = ethdev->pdev;
5474         if (!pdev)
5475                 return NULL;
5476
5477         dev_hold(dev);
5478         pci_dev_get(pdev);
5479         if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
5480              pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
5481             (pdev->revision < 0x10)) {
5482                 pci_dev_put(pdev);
5483                 goto cnic_err;
5484         }
5485         pci_dev_put(pdev);
5486
5487         cdev = cnic_alloc_dev(dev, pdev);
5488         if (cdev == NULL)
5489                 goto cnic_err;
5490
5491         set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
5492         cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
5493
5494         cp = cdev->cnic_priv;
5495         cp->ethdev = ethdev;
5496         cdev->pcidev = pdev;
5497         cp->chip_id = ethdev->chip_id;
5498
5499         cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5500
5501         cp->cnic_ops = &cnic_bnx2_ops;
5502         cp->start_hw = cnic_start_bnx2_hw;
5503         cp->stop_hw = cnic_stop_bnx2_hw;
5504         cp->setup_pgtbl = cnic_setup_page_tbl;
5505         cp->alloc_resc = cnic_alloc_bnx2_resc;
5506         cp->free_resc = cnic_free_resc;
5507         cp->start_cm = cnic_cm_init_bnx2_hw;
5508         cp->stop_cm = cnic_cm_stop_bnx2_hw;
5509         cp->enable_int = cnic_enable_bnx2_int;
5510         cp->disable_int_sync = cnic_disable_bnx2_int_sync;
5511         cp->close_conn = cnic_close_bnx2_conn;
5512         return cdev;
5513
5514 cnic_err:
5515         dev_put(dev);
5516         return NULL;
5517 }
5518
5519 static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
5520 {
5521         struct pci_dev *pdev;
5522         struct cnic_dev *cdev;
5523         struct cnic_local *cp;
5524         struct cnic_eth_dev *ethdev = NULL;
5525         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5526
5527         probe = symbol_get(bnx2x_cnic_probe);
5528         if (probe) {
5529                 ethdev = (*probe)(dev);
5530                 symbol_put(bnx2x_cnic_probe);
5531         }
5532         if (!ethdev)
5533                 return NULL;
5534
5535         pdev = ethdev->pdev;
5536         if (!pdev)
5537                 return NULL;
5538
5539         dev_hold(dev);
5540         cdev = cnic_alloc_dev(dev, pdev);
5541         if (cdev == NULL) {
5542                 dev_put(dev);
5543                 return NULL;
5544         }
5545
5546         set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
5547         cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
5548
5549         cp = cdev->cnic_priv;
5550         cp->ethdev = ethdev;
5551         cdev->pcidev = pdev;
5552         cp->chip_id = ethdev->chip_id;
5553
5554         cdev->stats_addr = ethdev->addr_drv_info_to_mcp;
5555
5556         if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
5557                 cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5558         if (CNIC_SUPPORTS_FCOE(cp))
5559                 cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
5560
5561         if (cdev->max_fcoe_conn > BNX2X_FCOE_NUM_CONNECTIONS)
5562                 cdev->max_fcoe_conn = BNX2X_FCOE_NUM_CONNECTIONS;
5563
5564         memcpy(cdev->mac_addr, ethdev->iscsi_mac, 6);
5565
5566         cp->cnic_ops = &cnic_bnx2x_ops;
5567         cp->start_hw = cnic_start_bnx2x_hw;
5568         cp->stop_hw = cnic_stop_bnx2x_hw;
5569         cp->setup_pgtbl = cnic_setup_page_tbl_le;
5570         cp->alloc_resc = cnic_alloc_bnx2x_resc;
5571         cp->free_resc = cnic_free_resc;
5572         cp->start_cm = cnic_cm_init_bnx2x_hw;
5573         cp->stop_cm = cnic_cm_stop_bnx2x_hw;
5574         cp->enable_int = cnic_enable_bnx2x_int;
5575         cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
5576         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
5577                 cp->ack_int = cnic_ack_bnx2x_e2_msix;
5578                 cp->arm_int = cnic_arm_bnx2x_e2_msix;
5579         } else {
5580                 cp->ack_int = cnic_ack_bnx2x_msix;
5581                 cp->arm_int = cnic_arm_bnx2x_msix;
5582         }
5583         cp->close_conn = cnic_close_bnx2x_conn;
5584         return cdev;
5585 }
5586
5587 static struct cnic_dev *is_cnic_dev(struct net_device *dev)
5588 {
5589         struct ethtool_drvinfo drvinfo;
5590         struct cnic_dev *cdev = NULL;
5591
5592         if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
5593                 memset(&drvinfo, 0, sizeof(drvinfo));
5594                 dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
5595
5596                 if (!strcmp(drvinfo.driver, "bnx2"))
5597                         cdev = init_bnx2_cnic(dev);
5598                 if (!strcmp(drvinfo.driver, "bnx2x"))
5599                         cdev = init_bnx2x_cnic(dev);
5600                 if (cdev) {
5601                         write_lock(&cnic_dev_lock);
5602                         list_add(&cdev->list, &cnic_dev_list);
5603                         write_unlock(&cnic_dev_lock);
5604                 }
5605         }
5606         return cdev;
5607 }
5608
5609 static void cnic_rcv_netevent(struct cnic_local *cp, unsigned long event,
5610                               u16 vlan_id)
5611 {
5612         int if_type;
5613
5614         rcu_read_lock();
5615         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
5616                 struct cnic_ulp_ops *ulp_ops;
5617                 void *ctx;
5618
5619                 ulp_ops = rcu_dereference(cp->ulp_ops[if_type]);
5620                 if (!ulp_ops || !ulp_ops->indicate_netevent)
5621                         continue;
5622
5623                 ctx = cp->ulp_handle[if_type];
5624
5625                 ulp_ops->indicate_netevent(ctx, event, vlan_id);
5626         }
5627         rcu_read_unlock();
5628 }
5629
5630 /* netdev event handler */
5631 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
5632                                                          void *ptr)
5633 {
5634         struct net_device *netdev = ptr;
5635         struct cnic_dev *dev;
5636         int new_dev = 0;
5637
5638         dev = cnic_from_netdev(netdev);
5639
5640         if (!dev && (event == NETDEV_REGISTER || netif_running(netdev))) {
5641                 /* Check for the hot-plug device */
5642                 dev = is_cnic_dev(netdev);
5643                 if (dev) {
5644                         new_dev = 1;
5645                         cnic_hold(dev);
5646                 }
5647         }
5648         if (dev) {
5649                 struct cnic_local *cp = dev->cnic_priv;
5650
5651                 if (new_dev)
5652                         cnic_ulp_init(dev);
5653                 else if (event == NETDEV_UNREGISTER)
5654                         cnic_ulp_exit(dev);
5655
5656                 if (event == NETDEV_UP || (new_dev && netif_running(netdev))) {
5657                         if (cnic_register_netdev(dev) != 0) {
5658                                 cnic_put(dev);
5659                                 goto done;
5660                         }
5661                         if (!cnic_start_hw(dev))
5662                                 cnic_ulp_start(dev);
5663                 }
5664
5665                 cnic_rcv_netevent(cp, event, 0);
5666
5667                 if (event == NETDEV_GOING_DOWN) {
5668                         cnic_ulp_stop(dev);
5669                         cnic_stop_hw(dev);
5670                         cnic_unregister_netdev(dev);
5671                 } else if (event == NETDEV_UNREGISTER) {
5672                         write_lock(&cnic_dev_lock);
5673                         list_del_init(&dev->list);
5674                         write_unlock(&cnic_dev_lock);
5675
5676                         cnic_put(dev);
5677                         cnic_free_dev(dev);
5678                         goto done;
5679                 }
5680                 cnic_put(dev);
5681         } else {
5682                 struct net_device *realdev;
5683                 u16 vid;
5684
5685                 vid = cnic_get_vlan(netdev, &realdev);
5686                 if (realdev) {
5687                         dev = cnic_from_netdev(realdev);
5688                         if (dev) {
5689                                 vid |= VLAN_TAG_PRESENT;
5690                                 cnic_rcv_netevent(dev->cnic_priv, event, vid);
5691                                 cnic_put(dev);
5692                         }
5693                 }
5694         }
5695 done:
5696         return NOTIFY_DONE;
5697 }
5698
5699 static struct notifier_block cnic_netdev_notifier = {
5700         .notifier_call = cnic_netdev_event
5701 };
5702
5703 static void cnic_release(void)
5704 {
5705         struct cnic_dev *dev;
5706         struct cnic_uio_dev *udev;
5707
5708         while (!list_empty(&cnic_dev_list)) {
5709                 dev = list_entry(cnic_dev_list.next, struct cnic_dev, list);
5710                 if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5711                         cnic_ulp_stop(dev);
5712                         cnic_stop_hw(dev);
5713                 }
5714
5715                 cnic_ulp_exit(dev);
5716                 cnic_unregister_netdev(dev);
5717                 list_del_init(&dev->list);
5718                 cnic_free_dev(dev);
5719         }
5720         while (!list_empty(&cnic_udev_list)) {
5721                 udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
5722                                   list);
5723                 cnic_free_uio(udev);
5724         }
5725 }
5726
5727 static int __init cnic_init(void)
5728 {
5729         int rc = 0;
5730
5731         pr_info("%s", version);
5732
5733         rc = register_netdevice_notifier(&cnic_netdev_notifier);
5734         if (rc) {
5735                 cnic_release();
5736                 return rc;
5737         }
5738
5739         cnic_wq = create_singlethread_workqueue("cnic_wq");
5740         if (!cnic_wq) {
5741                 cnic_release();
5742                 unregister_netdevice_notifier(&cnic_netdev_notifier);
5743                 return -ENOMEM;
5744         }
5745
5746         return 0;
5747 }
5748
5749 static void __exit cnic_exit(void)
5750 {
5751         unregister_netdevice_notifier(&cnic_netdev_notifier);
5752         cnic_release();
5753         destroy_workqueue(cnic_wq);
5754 }
5755
5756 module_init(cnic_init);
5757 module_exit(cnic_exit);