drivers/net/ethernet/broadcom/cnic.c

   1 /* cnic.c: QLogic CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2014 Broadcom Corporation
   4  * Copyright (c) 2014 QLogic Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation.
   9  *
  10  * Original skeleton written by: John(Zongxi) Chen (zongxi@broadcom.com)
  11  * Previously modified and maintained by: Michael Chan <mchan@broadcom.com>
  12  * Maintained By: Dept-HSGLinuxNICDev@qlogic.com
  13  */
  14
  15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  16
  17 #include <linux/module.h>
  18
  19 #include <linux/kernel.h>
  20 #include <linux/errno.h>
  21 #include <linux/list.h>
  22 #include <linux/slab.h>
  23 #include <linux/pci.h>
  24 #include <linux/init.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/uio_driver.h>
  27 #include <linux/in.h>
  28 #include <linux/dma-mapping.h>
  29 #include <linux/delay.h>
  30 #include <linux/ethtool.h>
  31 #include <linux/if_vlan.h>
  32 #include <linux/prefetch.h>
  33 #include <linux/random.h>
  34 #if IS_ENABLED(CONFIG_VLAN_8021Q)
  35 #define BCM_VLAN 1
  36 #endif
  37 #include <net/ip.h>
  38 #include <net/tcp.h>
  39 #include <net/route.h>
  40 #include <net/ipv6.h>
  41 #include <net/ip6_route.h>
  42 #include <net/ip6_checksum.h>
  43 #include <scsi/iscsi_if.h>
  44
  45 #define BCM_CNIC        1
  46 #include "cnic_if.h"
  47 #include "bnx2.h"
  48 #include "bnx2x/bnx2x.h"
  49 #include "bnx2x/bnx2x_reg.h"
  50 #include "bnx2x/bnx2x_fw_defs.h"
  51 #include "bnx2x/bnx2x_hsi.h"
  52 #include "../../../scsi/bnx2i/57xx_iscsi_constants.h"
  53 #include "../../../scsi/bnx2i/57xx_iscsi_hsi.h"
  54 #include "../../../scsi/bnx2fc/bnx2fc_constants.h"
  55 #include "cnic.h"
  56 #include "cnic_defs.h"
  57
  58 #define CNIC_MODULE_NAME        "cnic"
  59
  60 static char version[] =
  61         "QLogic NetXtreme II CNIC Driver " CNIC_MODULE_NAME " v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
  62
  63 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
  64               "Chen (zongxi@broadcom.com");
  65 MODULE_DESCRIPTION("QLogic NetXtreme II CNIC Driver");
  66 MODULE_LICENSE("GPL");
  67 MODULE_VERSION(CNIC_MODULE_VERSION);
  68
  69 /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
  70 static LIST_HEAD(cnic_dev_list);
  71 static LIST_HEAD(cnic_udev_list);
  72 static DEFINE_RWLOCK(cnic_dev_lock);
  73 static DEFINE_MUTEX(cnic_lock);
  74
  75 static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
  76
  77 /* helper function, assuming cnic_lock is held */
  78 static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
  79 {
  80         return rcu_dereference_protected(cnic_ulp_tbl[type],
  81                                          lockdep_is_held(&cnic_lock));
  82 }
  83
  84 static int cnic_service_bnx2(void *, void *);
  85 static int cnic_service_bnx2x(void *, void *);
  86 static int cnic_ctl(void *, struct cnic_ctl_info *);
  87
  88 static struct cnic_ops cnic_bnx2_ops = {
  89         .cnic_owner     = THIS_MODULE,
  90         .cnic_handler   = cnic_service_bnx2,
  91         .cnic_ctl       = cnic_ctl,
  92 };
  93
  94 static struct cnic_ops cnic_bnx2x_ops = {
  95         .cnic_owner     = THIS_MODULE,
  96         .cnic_handler   = cnic_service_bnx2x,
  97         .cnic_ctl       = cnic_ctl,
  98 };
  99
 100 static struct workqueue_struct *cnic_wq;
 101
 102 static void cnic_shutdown_rings(struct cnic_dev *);
 103 static void cnic_init_rings(struct cnic_dev *);
 104 static int cnic_cm_set_pg(struct cnic_sock *);
 105
 106 static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 107 {
 108         struct cnic_uio_dev *udev = uinfo->priv;
 109         struct cnic_dev *dev;
 110
 111         if (!capable(CAP_NET_ADMIN))
 112                 return -EPERM;
 113
 114         if (udev->uio_dev != -1)
 115                 return -EBUSY;
 116
 117         rtnl_lock();
 118         dev = udev->dev;
 119
 120         if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
 121                 rtnl_unlock();
 122                 return -ENODEV;
 123         }
 124
 125         udev->uio_dev = iminor(inode);
 126
 127         cnic_shutdown_rings(dev);
 128         cnic_init_rings(dev);
 129         rtnl_unlock();
 130
 131         return 0;
 132 }
 133
 134 static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 135 {
 136         struct cnic_uio_dev *udev = uinfo->priv;
 137
 138         udev->uio_dev = -1;
 139         return 0;
 140 }
 141
 142 static inline void cnic_hold(struct cnic_dev *dev)
 143 {
 144         atomic_inc(&dev->ref_count);
 145 }
 146
 147 static inline void cnic_put(struct cnic_dev *dev)
 148 {
 149         atomic_dec(&dev->ref_count);
 150 }
 151
 152 static inline void csk_hold(struct cnic_sock *csk)
 153 {
 154         atomic_inc(&csk->ref_count);
 155 }
 156
 157 static inline void csk_put(struct cnic_sock *csk)
 158 {
 159         atomic_dec(&csk->ref_count);
 160 }
 161
 162 static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
 163 {
 164         struct cnic_dev *cdev;
 165
 166         read_lock(&cnic_dev_lock);
 167         list_for_each_entry(cdev, &cnic_dev_list, list) {
 168                 if (netdev == cdev->netdev) {
 169                         cnic_hold(cdev);
 170                         read_unlock(&cnic_dev_lock);
 171                         return cdev;
 172                 }
 173         }
 174         read_unlock(&cnic_dev_lock);
 175         return NULL;
 176 }
 177
 178 static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
 179 {
 180         atomic_inc(&ulp_ops->ref_count);
 181 }
 182
 183 static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
 184 {
 185         atomic_dec(&ulp_ops->ref_count);
 186 }
 187
 188 static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
 189 {
 190         struct cnic_local *cp = dev->cnic_priv;
 191         struct cnic_eth_dev *ethdev = cp->ethdev;
 192         struct drv_ctl_info info;
 193         struct drv_ctl_io *io = &info.data.io;
 194
 195         info.cmd = DRV_CTL_CTX_WR_CMD;
 196         io->cid_addr = cid_addr;
 197         io->offset = off;
 198         io->data = val;
 199         ethdev->drv_ctl(dev->netdev, &info);
 200 }
 201
 202 static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
 203 {
 204         struct cnic_local *cp = dev->cnic_priv;
 205         struct cnic_eth_dev *ethdev = cp->ethdev;
 206         struct drv_ctl_info info;
 207         struct drv_ctl_io *io = &info.data.io;
 208
 209         info.cmd = DRV_CTL_CTXTBL_WR_CMD;
 210         io->offset = off;
 211         io->dma_addr = addr;
 212         ethdev->drv_ctl(dev->netdev, &info);
 213 }
 214
 215 static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
 216 {
 217         struct cnic_local *cp = dev->cnic_priv;
 218         struct cnic_eth_dev *ethdev = cp->ethdev;
 219         struct drv_ctl_info info;
 220         struct drv_ctl_l2_ring *ring = &info.data.ring;
 221
 222         if (start)
 223                 info.cmd = DRV_CTL_START_L2_CMD;
 224         else
 225                 info.cmd = DRV_CTL_STOP_L2_CMD;
 226
 227         ring->cid = cid;
 228         ring->client_id = cl_id;
 229         ethdev->drv_ctl(dev->netdev, &info);
 230 }
 231
 232 static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
 233 {
 234         struct cnic_local *cp = dev->cnic_priv;
 235         struct cnic_eth_dev *ethdev = cp->ethdev;
 236         struct drv_ctl_info info;
 237         struct drv_ctl_io *io = &info.data.io;
 238
 239         info.cmd = DRV_CTL_IO_WR_CMD;
 240         io->offset = off;
 241         io->data = val;
 242         ethdev->drv_ctl(dev->netdev, &info);
 243 }
 244
 245 static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
 246 {
 247         struct cnic_local *cp = dev->cnic_priv;
 248         struct cnic_eth_dev *ethdev = cp->ethdev;
 249         struct drv_ctl_info info;
 250         struct drv_ctl_io *io = &info.data.io;
 251
 252         info.cmd = DRV_CTL_IO_RD_CMD;
 253         io->offset = off;
 254         ethdev->drv_ctl(dev->netdev, &info);
 255         return io->data;
 256 }
 257
 258 static void cnic_ulp_ctl(struct cnic_dev *dev, int ulp_type, bool reg)
 259 {
 260         struct cnic_local *cp = dev->cnic_priv;
 261         struct cnic_eth_dev *ethdev = cp->ethdev;
 262         struct drv_ctl_info info;
 263         struct fcoe_capabilities *fcoe_cap =
 264                 &info.data.register_data.fcoe_features;
 265
 266         if (reg) {
 267                 info.cmd = DRV_CTL_ULP_REGISTER_CMD;
 268                 if (ulp_type == CNIC_ULP_FCOE && dev->fcoe_cap)
 269                         memcpy(fcoe_cap, dev->fcoe_cap, sizeof(*fcoe_cap));
 270         } else {
 271                 info.cmd = DRV_CTL_ULP_UNREGISTER_CMD;
 272         }
 273
 274         info.data.ulp_type = ulp_type;
 275         ethdev->drv_ctl(dev->netdev, &info);
 276 }
 277
 278 static int cnic_in_use(struct cnic_sock *csk)
 279 {
 280         return test_bit(SK_F_INUSE, &csk->flags);
 281 }
 282
 283 static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
 284 {
 285         struct cnic_local *cp = dev->cnic_priv;
 286         struct cnic_eth_dev *ethdev = cp->ethdev;
 287         struct drv_ctl_info info;
 288
 289         info.cmd = cmd;
 290         info.data.credit.credit_count = count;
 291         ethdev->drv_ctl(dev->netdev, &info);
 292 }
 293
 294 static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
 295 {
 296         u32 i;
 297
 298         if (!cp->ctx_tbl)
 299                 return -EINVAL;
 300
 301         for (i = 0; i < cp->max_cid_space; i++) {
 302                 if (cp->ctx_tbl[i].cid == cid) {
 303                         *l5_cid = i;
 304                         return 0;
 305                 }
 306         }
 307         return -EINVAL;
 308 }
 309
 310 static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
 311                            struct cnic_sock *csk)
 312 {
 313         struct iscsi_path path_req;
 314         char *buf = NULL;
 315         u16 len = 0;
 316         u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 317         struct cnic_ulp_ops *ulp_ops;
 318         struct cnic_uio_dev *udev = cp->udev;
 319         int rc = 0, retry = 0;
 320
 321         if (!udev || udev->uio_dev == -1)
 322                 return -ENODEV;
 323
 324         if (csk) {
 325                 len = sizeof(path_req);
 326                 buf = (char *) &path_req;
 327                 memset(&path_req, 0, len);
 328
 329                 msg_type = ISCSI_KEVENT_PATH_REQ;
 330                 path_req.handle = (u64) csk->l5_cid;
 331                 if (test_bit(SK_F_IPV6, &csk->flags)) {
 332                         memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
 333                                sizeof(struct in6_addr));
 334                         path_req.ip_addr_len = 16;
 335                 } else {
 336                         memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
 337                                sizeof(struct in_addr));
 338                         path_req.ip_addr_len = 4;
 339                 }
 340                 path_req.vlan_id = csk->vlan_id;
 341                 path_req.pmtu = csk->mtu;
 342         }
 343
 344         while (retry < 3) {
 345                 rc = 0;
 346                 rcu_read_lock();
 347                 ulp_ops = rcu_dereference(cp->ulp_ops[CNIC_ULP_ISCSI]);
 348                 if (ulp_ops)
 349                         rc = ulp_ops->iscsi_nl_send_msg(
 350                                 cp->ulp_handle[CNIC_ULP_ISCSI],
 351                                 msg_type, buf, len);
 352                 rcu_read_unlock();
 353                 if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
 354                         break;
 355
 356                 msleep(100);
 357                 retry++;
 358         }
 359         return rc;
 360 }
 361
 362 static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
 363
 364 static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 365                                   char *buf, u16 len)
 366 {
 367         int rc = -EINVAL;
 368
 369         switch (msg_type) {
 370         case ISCSI_UEVENT_PATH_UPDATE: {
 371                 struct cnic_local *cp;
 372                 u32 l5_cid;
 373                 struct cnic_sock *csk;
 374                 struct iscsi_path *path_resp;
 375
 376                 if (len < sizeof(*path_resp))
 377                         break;
 378
 379                 path_resp = (struct iscsi_path *) buf;
 380                 cp = dev->cnic_priv;
 381                 l5_cid = (u32) path_resp->handle;
 382                 if (l5_cid >= MAX_CM_SK_TBL_SZ)
 383                         break;
 384
 385                 rcu_read_lock();
 386                 if (!rcu_access_pointer(cp->ulp_ops[CNIC_ULP_L4])) {
 387                         rc = -ENODEV;
 388                         rcu_read_unlock();
 389                         break;
 390                 }
 391                 csk = &cp->csk_tbl[l5_cid];
 392                 csk_hold(csk);
 393                 if (cnic_in_use(csk) &&
 394                     test_bit(SK_F_CONNECT_START, &csk->flags)) {
 395
 396                         csk->vlan_id = path_resp->vlan_id;
 397
 398                         memcpy(csk->ha, path_resp->mac_addr, ETH_ALEN);
 399                         if (test_bit(SK_F_IPV6, &csk->flags))
 400                                 memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 401                                        sizeof(struct in6_addr));
 402                         else
 403                                 memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
 404                                        sizeof(struct in_addr));
 405
 406                         if (is_valid_ether_addr(csk->ha)) {
 407                                 cnic_cm_set_pg(csk);
 408                         } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
 409                                 !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 410
 411                                 cnic_cm_upcall(cp, csk,
 412                                         L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
 413                                 clear_bit(SK_F_CONNECT_START, &csk->flags);
 414                         }
 415                 }
 416                 csk_put(csk);
 417                 rcu_read_unlock();
 418                 rc = 0;
 419         }
 420         }
 421
 422         return rc;
 423 }
 424
 425 static int cnic_offld_prep(struct cnic_sock *csk)
 426 {
 427         if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 428                 return 0;
 429
 430         if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
 431                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 432                 return 0;
 433         }
 434
 435         return 1;
 436 }
 437
 438 static int cnic_close_prep(struct cnic_sock *csk)
 439 {
 440         clear_bit(SK_F_CONNECT_START, &csk->flags);
 441         smp_mb__after_atomic();
 442
 443         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 444                 while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 445                         msleep(1);
 446
 447                 return 1;
 448         }
 449         return 0;
 450 }
 451
 452 static int cnic_abort_prep(struct cnic_sock *csk)
 453 {
 454         clear_bit(SK_F_CONNECT_START, &csk->flags);
 455         smp_mb__after_atomic();
 456
 457         while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 458                 msleep(1);
 459
 460         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 461                 csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
 462                 return 1;
 463         }
 464
 465         return 0;
 466 }
 467
 468 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 469 {
 470         struct cnic_dev *dev;
 471
 472         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 473                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 474                 return -EINVAL;
 475         }
 476         mutex_lock(&cnic_lock);
 477         if (cnic_ulp_tbl_prot(ulp_type)) {
 478                 pr_err("%s: Type %d has already been registered\n",
 479                        __func__, ulp_type);
 480                 mutex_unlock(&cnic_lock);
 481                 return -EBUSY;
 482         }
 483
 484         read_lock(&cnic_dev_lock);
 485         list_for_each_entry(dev, &cnic_dev_list, list) {
 486                 struct cnic_local *cp = dev->cnic_priv;
 487
 488                 clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
 489         }
 490         read_unlock(&cnic_dev_lock);
 491
 492         atomic_set(&ulp_ops->ref_count, 0);
 493         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
 494         mutex_unlock(&cnic_lock);
 495
 496         /* Prevent race conditions with netdev_event */
 497         rtnl_lock();
 498         list_for_each_entry(dev, &cnic_dev_list, list) {
 499                 struct cnic_local *cp = dev->cnic_priv;
 500
 501                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 502                         ulp_ops->cnic_init(dev);
 503         }
 504         rtnl_unlock();
 505
 506         return 0;
 507 }
 508
 509 int cnic_unregister_driver(int ulp_type)
 510 {
 511         struct cnic_dev *dev;
 512         struct cnic_ulp_ops *ulp_ops;
 513         int i = 0;
 514
 515         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 516                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 517                 return -EINVAL;
 518         }
 519         mutex_lock(&cnic_lock);
 520         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 521         if (!ulp_ops) {
 522                 pr_err("%s: Type %d has not been registered\n",
 523                        __func__, ulp_type);
 524                 goto out_unlock;
 525         }
 526         read_lock(&cnic_dev_lock);
 527         list_for_each_entry(dev, &cnic_dev_list, list) {
 528                 struct cnic_local *cp = dev->cnic_priv;
 529
 530                 if (rcu_access_pointer(cp->ulp_ops[ulp_type])) {
 531                         pr_err("%s: Type %d still has devices registered\n",
 532                                __func__, ulp_type);
 533                         read_unlock(&cnic_dev_lock);
 534                         goto out_unlock;
 535                 }
 536         }
 537         read_unlock(&cnic_dev_lock);
 538
 539         RCU_INIT_POINTER(cnic_ulp_tbl[ulp_type], NULL);
 540
 541         mutex_unlock(&cnic_lock);
 542         synchronize_rcu();
 543         while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
 544                 msleep(100);
 545                 i++;
 546         }
 547
 548         if (atomic_read(&ulp_ops->ref_count) != 0)
 549                 pr_warn("%s: Failed waiting for ref count to go to zero\n",
 550                         __func__);
 551         return 0;
 552
 553 out_unlock:
 554         mutex_unlock(&cnic_lock);
 555         return -EINVAL;
 556 }
 557
 558 static int cnic_start_hw(struct cnic_dev *);
 559 static void cnic_stop_hw(struct cnic_dev *);
 560
 561 static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
 562                                 void *ulp_ctx)
 563 {
 564         struct cnic_local *cp = dev->cnic_priv;
 565         struct cnic_ulp_ops *ulp_ops;
 566
 567         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 568                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 569                 return -EINVAL;
 570         }
 571         mutex_lock(&cnic_lock);
 572         if (cnic_ulp_tbl_prot(ulp_type) == NULL) {
 573                 pr_err("%s: Driver with type %d has not been registered\n",
 574                        __func__, ulp_type);
 575                 mutex_unlock(&cnic_lock);
 576                 return -EAGAIN;
 577         }
 578         if (rcu_access_pointer(cp->ulp_ops[ulp_type])) {
 579                 pr_err("%s: Type %d has already been registered to this device\n",
 580                        __func__, ulp_type);
 581                 mutex_unlock(&cnic_lock);
 582                 return -EBUSY;
 583         }
 584
 585         clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
 586         cp->ulp_handle[ulp_type] = ulp_ctx;
 587         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 588         rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
 589         cnic_hold(dev);
 590
 591         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
 592                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
 593                         ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
 594
 595         mutex_unlock(&cnic_lock);
 596
 597         cnic_ulp_ctl(dev, ulp_type, true);
 598
 599         return 0;
 600
 601 }
 602 EXPORT_SYMBOL(cnic_register_driver);
 603
 604 static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
 605 {
 606         struct cnic_local *cp = dev->cnic_priv;
 607         int i = 0;
 608
 609         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 610                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 611                 return -EINVAL;
 612         }
 613
 614         if (ulp_type == CNIC_ULP_ISCSI)
 615                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 616
 617         mutex_lock(&cnic_lock);
 618         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 619                 RCU_INIT_POINTER(cp->ulp_ops[ulp_type], NULL);
 620                 cnic_put(dev);
 621         } else {
 622                 pr_err("%s: device not registered to this ulp type %d\n",
 623                        __func__, ulp_type);
 624                 mutex_unlock(&cnic_lock);
 625                 return -EINVAL;
 626         }
 627         mutex_unlock(&cnic_lock);
 628
 629         if (ulp_type == CNIC_ULP_FCOE)
 630                 dev->fcoe_cap = NULL;
 631
 632         synchronize_rcu();
 633
 634         while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
 635                i < 20) {
 636                 msleep(100);
 637                 i++;
 638         }
 639         if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
 640                 netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
 641
 642         cnic_ulp_ctl(dev, ulp_type, false);
 643
 644         return 0;
 645 }
 646 EXPORT_SYMBOL(cnic_unregister_driver);
 647
 648 static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id,
 649                             u32 next)
 650 {
 651         id_tbl->start = start_id;
 652         id_tbl->max = size;
 653         id_tbl->next = next;
 654         spin_lock_init(&id_tbl->lock);
 655         id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL);
 656         if (!id_tbl->table)
 657                 return -ENOMEM;
 658
 659         return 0;
 660 }
 661
 662 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 663 {
 664         kfree(id_tbl->table);
 665         id_tbl->table = NULL;
 666 }
 667
 668 static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
 669 {
 670         int ret = -1;
 671
 672         id -= id_tbl->start;
 673         if (id >= id_tbl->max)
 674                 return ret;
 675
 676         spin_lock(&id_tbl->lock);
 677         if (!test_bit(id, id_tbl->table)) {
 678                 set_bit(id, id_tbl->table);
 679                 ret = 0;
 680         }
 681         spin_unlock(&id_tbl->lock);
 682         return ret;
 683 }
 684
 685 /* Returns -1 if not successful */
 686 static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
 687 {
 688         u32 id;
 689
 690         spin_lock(&id_tbl->lock);
 691         id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
 692         if (id >= id_tbl->max) {
 693                 id = -1;
 694                 if (id_tbl->next != 0) {
 695                         id = find_first_zero_bit(id_tbl->table, id_tbl->next);
 696                         if (id >= id_tbl->next)
 697                                 id = -1;
 698                 }
 699         }
 700
 701         if (id < id_tbl->max) {
 702                 set_bit(id, id_tbl->table);
 703                 id_tbl->next = (id + 1) & (id_tbl->max - 1);
 704                 id += id_tbl->start;
 705         }
 706
 707         spin_unlock(&id_tbl->lock);
 708
 709         return id;
 710 }
 711
 712 static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
 713 {
 714         if (id == -1)
 715                 return;
 716
 717         id -= id_tbl->start;
 718         if (id >= id_tbl->max)
 719                 return;
 720
 721         clear_bit(id, id_tbl->table);
 722 }
 723
 724 static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
 725 {
 726         int i;
 727
 728         if (!dma->pg_arr)
 729                 return;
 730
 731         for (i = 0; i < dma->num_pages; i++) {
 732                 if (dma->pg_arr[i]) {
 733                         dma_free_coherent(&dev->pcidev->dev, CNIC_PAGE_SIZE,
 734                                           dma->pg_arr[i], dma->pg_map_arr[i]);
 735                         dma->pg_arr[i] = NULL;
 736                 }
 737         }
 738         if (dma->pgtbl) {
 739                 dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 740                                   dma->pgtbl, dma->pgtbl_map);
 741                 dma->pgtbl = NULL;
 742         }
 743         kfree(dma->pg_arr);
 744         dma->pg_arr = NULL;
 745         dma->num_pages = 0;
 746 }
 747
 748 static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
 749 {
 750         int i;
 751         __le32 *page_table = (__le32 *) dma->pgtbl;
 752
 753         for (i = 0; i < dma->num_pages; i++) {
 754                 /* Each entry needs to be in big endian format. */
 755                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 756                 page_table++;
 757                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 758                 page_table++;
 759         }
 760 }
 761
 762 static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
 763 {
 764         int i;
 765         __le32 *page_table = (__le32 *) dma->pgtbl;
 766
 767         for (i = 0; i < dma->num_pages; i++) {
 768                 /* Each entry needs to be in little endian format. */
 769                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 770                 page_table++;
 771                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 772                 page_table++;
 773         }
 774 }
 775
 776 static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
 777                           int pages, int use_pg_tbl)
 778 {
 779         int i, size;
 780         struct cnic_local *cp = dev->cnic_priv;
 781
 782         size = pages * (sizeof(void *) + sizeof(dma_addr_t));
 783         dma->pg_arr = kzalloc(size, GFP_ATOMIC);
 784         if (dma->pg_arr == NULL)
 785                 return -ENOMEM;
 786
 787         dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
 788         dma->num_pages = pages;
 789
 790         for (i = 0; i < pages; i++) {
 791                 dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
 792                                                     CNIC_PAGE_SIZE,
 793                                                     &dma->pg_map_arr[i],
 794                                                     GFP_ATOMIC);
 795                 if (dma->pg_arr[i] == NULL)
 796                         goto error;
 797         }
 798         if (!use_pg_tbl)
 799                 return 0;
 800
 801         dma->pgtbl_size = ((pages * 8) + CNIC_PAGE_SIZE - 1) &
 802                           ~(CNIC_PAGE_SIZE - 1);
 803         dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 804                                         &dma->pgtbl_map, GFP_ATOMIC);
 805         if (dma->pgtbl == NULL)
 806                 goto error;
 807
 808         cp->setup_pgtbl(dev, dma);
 809
 810         return 0;
 811
 812 error:
 813         cnic_free_dma(dev, dma);
 814         return -ENOMEM;
 815 }
 816
 817 static void cnic_free_context(struct cnic_dev *dev)
 818 {
 819         struct cnic_local *cp = dev->cnic_priv;
 820         int i;
 821
 822         for (i = 0; i < cp->ctx_blks; i++) {
 823                 if (cp->ctx_arr[i].ctx) {
 824                         dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
 825                                           cp->ctx_arr[i].ctx,
 826                                           cp->ctx_arr[i].mapping);
 827                         cp->ctx_arr[i].ctx = NULL;
 828                 }
 829         }
 830 }
 831
 832 static void __cnic_free_uio_rings(struct cnic_uio_dev *udev)
 833 {
 834         if (udev->l2_buf) {
 835                 dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 836                                   udev->l2_buf, udev->l2_buf_map);
 837                 udev->l2_buf = NULL;
 838         }
 839
 840         if (udev->l2_ring) {
 841                 dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 842                                   udev->l2_ring, udev->l2_ring_map);
 843                 udev->l2_ring = NULL;
 844         }
 845
 846 }
 847
 848 static void __cnic_free_uio(struct cnic_uio_dev *udev)
 849 {
 850         uio_unregister_device(&udev->cnic_uinfo);
 851
 852         __cnic_free_uio_rings(udev);
 853
 854         pci_dev_put(udev->pdev);
 855         kfree(udev);
 856 }
 857
 858 static void cnic_free_uio(struct cnic_uio_dev *udev)
 859 {
 860         if (!udev)
 861                 return;
 862
 863         write_lock(&cnic_dev_lock);
 864         list_del_init(&udev->list);
 865         write_unlock(&cnic_dev_lock);
 866         __cnic_free_uio(udev);
 867 }
 868
 869 static void cnic_free_resc(struct cnic_dev *dev)
 870 {
 871         struct cnic_local *cp = dev->cnic_priv;
 872         struct cnic_uio_dev *udev = cp->udev;
 873
 874         if (udev) {
 875                 udev->dev = NULL;
 876                 cp->udev = NULL;
 877                 if (udev->uio_dev == -1)
 878                         __cnic_free_uio_rings(udev);
 879         }
 880
 881         cnic_free_context(dev);
 882         kfree(cp->ctx_arr);
 883         cp->ctx_arr = NULL;
 884         cp->ctx_blks = 0;
 885
 886         cnic_free_dma(dev, &cp->gbl_buf_info);
 887         cnic_free_dma(dev, &cp->kwq_info);
 888         cnic_free_dma(dev, &cp->kwq_16_data_info);
 889         cnic_free_dma(dev, &cp->kcq2.dma);
 890         cnic_free_dma(dev, &cp->kcq1.dma);
 891         kfree(cp->iscsi_tbl);
 892         cp->iscsi_tbl = NULL;
 893         kfree(cp->ctx_tbl);
 894         cp->ctx_tbl = NULL;
 895
 896         cnic_free_id_tbl(&cp->fcoe_cid_tbl);
 897         cnic_free_id_tbl(&cp->cid_tbl);
 898 }
 899
 900 static int cnic_alloc_context(struct cnic_dev *dev)
 901 {
 902         struct cnic_local *cp = dev->cnic_priv;
 903
 904         if (BNX2_CHIP(cp) == BNX2_CHIP_5709) {
 905                 int i, k, arr_size;
 906
 907                 cp->ctx_blk_size = CNIC_PAGE_SIZE;
 908                 cp->cids_per_blk = CNIC_PAGE_SIZE / 128;
 909                 arr_size = BNX2_MAX_CID / cp->cids_per_blk *
 910                            sizeof(struct cnic_ctx);
 911                 cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
 912                 if (cp->ctx_arr == NULL)
 913                         return -ENOMEM;
 914
 915                 k = 0;
 916                 for (i = 0; i < 2; i++) {
 917                         u32 j, reg, off, lo, hi;
 918
 919                         if (i == 0)
 920                                 off = BNX2_PG_CTX_MAP;
 921                         else
 922                                 off = BNX2_ISCSI_CTX_MAP;
 923
 924                         reg = cnic_reg_rd_ind(dev, off);
 925                         lo = reg >> 16;
 926                         hi = reg & 0xffff;
 927                         for (j = lo; j < hi; j += cp->cids_per_blk, k++)
 928                                 cp->ctx_arr[k].cid = j;
 929                 }
 930
 931                 cp->ctx_blks = k;
 932                 if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
 933                         cp->ctx_blks = 0;
 934                         return -ENOMEM;
 935                 }
 936
 937                 for (i = 0; i < cp->ctx_blks; i++) {
 938                         cp->ctx_arr[i].ctx =
 939                                 dma_alloc_coherent(&dev->pcidev->dev,
 940                                                    CNIC_PAGE_SIZE,
 941                                                    &cp->ctx_arr[i].mapping,
 942                                                    GFP_KERNEL);
 943                         if (cp->ctx_arr[i].ctx == NULL)
 944                                 return -ENOMEM;
 945                 }
 946         }
 947         return 0;
 948 }
 949
 950 static u16 cnic_bnx2_next_idx(u16 idx)
 951 {
 952         return idx + 1;
 953 }
 954
 955 static u16 cnic_bnx2_hw_idx(u16 idx)
 956 {
 957         return idx;
 958 }
 959
 960 static u16 cnic_bnx2x_next_idx(u16 idx)
 961 {
 962         idx++;
 963         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 964                 idx++;
 965
 966         return idx;
 967 }
 968
 969 static u16 cnic_bnx2x_hw_idx(u16 idx)
 970 {
 971         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 972                 idx++;
 973         return idx;
 974 }
 975
 976 static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info,
 977                           bool use_pg_tbl)
 978 {
 979         int err, i, use_page_tbl = 0;
 980         struct kcqe **kcq;
 981
 982         if (use_pg_tbl)
 983                 use_page_tbl = 1;
 984
 985         err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, use_page_tbl);
 986         if (err)
 987                 return err;
 988
 989         kcq = (struct kcqe **) info->dma.pg_arr;
 990         info->kcq = kcq;
 991
 992         info->next_idx = cnic_bnx2_next_idx;
 993         info->hw_idx = cnic_bnx2_hw_idx;
 994         if (use_pg_tbl)
 995                 return 0;
 996
 997         info->next_idx = cnic_bnx2x_next_idx;
 998         info->hw_idx = cnic_bnx2x_hw_idx;
 999
1000         for (i = 0; i < KCQ_PAGE_CNT; i++) {
1001                 struct bnx2x_bd_chain_next *next =
1002                         (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
1003                 int j = i + 1;
1004
1005                 if (j >= KCQ_PAGE_CNT)
1006                         j = 0;
1007                 next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
1008                 next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
1009         }
1010         return 0;
1011 }
1012
1013 static int __cnic_alloc_uio_rings(struct cnic_uio_dev *udev, int pages)
1014 {
1015         struct cnic_local *cp = udev->dev->cnic_priv;
1016
1017         if (udev->l2_ring)
1018                 return 0;
1019
1020         udev->l2_ring_size = pages * CNIC_PAGE_SIZE;
1021         udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
1022                                            &udev->l2_ring_map,
1023                                            GFP_KERNEL | __GFP_COMP);
1024         if (!udev->l2_ring)
1025                 return -ENOMEM;
1026
1027         udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
1028         udev->l2_buf_size = CNIC_PAGE_ALIGN(udev->l2_buf_size);
1029         udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
1030                                           &udev->l2_buf_map,
1031                                           GFP_KERNEL | __GFP_COMP);
1032         if (!udev->l2_buf) {
1033                 __cnic_free_uio_rings(udev);
1034                 return -ENOMEM;
1035         }
1036
1037         return 0;
1038
1039 }
1040
1041 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
1042 {
1043         struct cnic_local *cp = dev->cnic_priv;
1044         struct cnic_uio_dev *udev;
1045
1046         list_for_each_entry(udev, &cnic_udev_list, list) {
1047                 if (udev->pdev == dev->pcidev) {
1048                         udev->dev = dev;
1049                         if (__cnic_alloc_uio_rings(udev, pages)) {
1050                                 udev->dev = NULL;
1051                                 return -ENOMEM;
1052                         }
1053                         cp->udev = udev;
1054                         return 0;
1055                 }
1056         }
1057
1058         udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
1059         if (!udev)
1060                 return -ENOMEM;
1061
1062         udev->uio_dev = -1;
1063
1064         udev->dev = dev;
1065         udev->pdev = dev->pcidev;
1066
1067         if (__cnic_alloc_uio_rings(udev, pages))
1068                 goto err_udev;
1069
1070         list_add(&udev->list, &cnic_udev_list);
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                                         CNIC_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                         CNIC_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         struct bnx2x *bp = netdev_priv(dev->netdev);
1186         int ctx_blk_size = cp->ethdev->ctx_blk_size;
1187         int total_mem, blks, i;
1188
1189         total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
1190         blks = total_mem / ctx_blk_size;
1191         if (total_mem % ctx_blk_size)
1192                 blks++;
1193
1194         if (blks > cp->ethdev->ctx_tbl_len)
1195                 return -ENOMEM;
1196
1197         cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL);
1198         if (cp->ctx_arr == NULL)
1199                 return -ENOMEM;
1200
1201         cp->ctx_blks = blks;
1202         cp->ctx_blk_size = ctx_blk_size;
1203         if (!CHIP_IS_E1(bp))
1204                 cp->ctx_align = 0;
1205         else
1206                 cp->ctx_align = ctx_blk_size;
1207
1208         cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
1209
1210         for (i = 0; i < blks; i++) {
1211                 cp->ctx_arr[i].ctx =
1212                         dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
1213                                            &cp->ctx_arr[i].mapping,
1214                                            GFP_KERNEL);
1215                 if (cp->ctx_arr[i].ctx == NULL)
1216                         return -ENOMEM;
1217
1218                 if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
1219                         if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
1220                                 cnic_free_context(dev);
1221                                 cp->ctx_blk_size += cp->ctx_align;
1222                                 i = -1;
1223                                 continue;
1224                         }
1225                 }
1226         }
1227         return 0;
1228 }
1229
1230 static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
1231 {
1232         struct cnic_local *cp = dev->cnic_priv;
1233         struct bnx2x *bp = netdev_priv(dev->netdev);
1234         struct cnic_eth_dev *ethdev = cp->ethdev;
1235         u32 start_cid = ethdev->starting_cid;
1236         int i, j, n, ret, pages;
1237         struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
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(bp)) {
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 = CNIC_PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
1269                 CNIC_PAGE_SIZE;
1270
1271         ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
1272         if (ret)
1273                 return -ENOMEM;
1274
1275         n = CNIC_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(bp)) {
1292                 ret = cnic_alloc_kcq(dev, &cp->kcq2, true);
1293                 if (ret)
1294                         goto error;
1295         }
1296
1297         pages = CNIC_PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / CNIC_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 bnx2x *bp = netdev_priv(dev->netdev);
1386         struct l5cm_spe kwqe;
1387         struct kwqe_16 *kwq[1];
1388         u16 type_16;
1389         int ret;
1390
1391         kwqe.hdr.conn_and_cmd_data =
1392                 cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
1393                              BNX2X_HW_CID(bp, cid)));
1394
1395         type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
1396         type_16 |= (bp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
1397                    SPE_HDR_FUNCTION_ID;
1398
1399         kwqe.hdr.type = cpu_to_le16(type_16);
1400         kwqe.hdr.reserved1 = 0;
1401         kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
1402         kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
1403
1404         kwq[0] = (struct kwqe_16 *) &kwqe;
1405
1406         spin_lock_bh(&cp->cnic_ulp_lock);
1407         ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
1408         spin_unlock_bh(&cp->cnic_ulp_lock);
1409
1410         if (ret == 1)
1411                 return 0;
1412
1413         return ret;
1414 }
1415
1416 static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
1417                                    struct kcqe *cqes[], u32 num_cqes)
1418 {
1419         struct cnic_local *cp = dev->cnic_priv;
1420         struct cnic_ulp_ops *ulp_ops;
1421
1422         rcu_read_lock();
1423         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
1424         if (likely(ulp_ops)) {
1425                 ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
1426                                           cqes, num_cqes);
1427         }
1428         rcu_read_unlock();
1429 }
1430
1431 static void cnic_bnx2x_set_tcp_options(struct cnic_dev *dev, int time_stamps,
1432                                        int en_tcp_dack)
1433 {
1434         struct bnx2x *bp = netdev_priv(dev->netdev);
1435         u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
1436         u16 tstorm_flags = 0;
1437
1438         if (time_stamps) {
1439                 xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1440                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1441         }
1442         if (en_tcp_dack)
1443                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_DELAYED_ACK_EN;
1444
1445         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1446                  XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(bp->pfid), xstorm_flags);
1447
1448         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1449                   TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(bp->pfid), tstorm_flags);
1450 }
1451
1452 static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
1453 {
1454         struct cnic_local *cp = dev->cnic_priv;
1455         struct bnx2x *bp = netdev_priv(dev->netdev);
1456         struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
1457         int hq_bds, pages;
1458         u32 pfid = bp->pfid;
1459
1460         cp->num_iscsi_tasks = req1->num_tasks_per_conn;
1461         cp->num_ccells = req1->num_ccells_per_conn;
1462         cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
1463                               cp->num_iscsi_tasks;
1464         cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
1465                         BNX2X_ISCSI_R2TQE_SIZE;
1466         cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
1467         pages = CNIC_PAGE_ALIGN(cp->hq_size) / CNIC_PAGE_SIZE;
1468         hq_bds = pages * (CNIC_PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
1469         cp->num_cqs = req1->num_cqs;
1470
1471         if (!dev->max_iscsi_conn)
1472                 return 0;
1473
1474         /* init Tstorm RAM */
1475         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1476                   req1->rq_num_wqes);
1477         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1478                   CNIC_PAGE_SIZE);
1479         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1480                  TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1481         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1482                   TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1483                   req1->num_tasks_per_conn);
1484
1485         /* init Ustorm RAM */
1486         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1487                   USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
1488                   req1->rq_buffer_size);
1489         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1490                   CNIC_PAGE_SIZE);
1491         CNIC_WR8(dev, BAR_USTRORM_INTMEM +
1492                  USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1493         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1494                   USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1495                   req1->num_tasks_per_conn);
1496         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1497                   req1->rq_num_wqes);
1498         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1499                   req1->cq_num_wqes);
1500         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1501                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1502
1503         /* init Xstorm RAM */
1504         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1505                   CNIC_PAGE_SIZE);
1506         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1507                  XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1508         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
1509                   XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1510                   req1->num_tasks_per_conn);
1511         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1512                   hq_bds);
1513         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
1514                   req1->num_tasks_per_conn);
1515         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1516                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1517
1518         /* init Cstorm RAM */
1519         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1520                   CNIC_PAGE_SIZE);
1521         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
1522                  CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1523         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1524                   CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1525                   req1->num_tasks_per_conn);
1526         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1527                   req1->cq_num_wqes);
1528         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1529                   hq_bds);
1530
1531         cnic_bnx2x_set_tcp_options(dev,
1532                         req1->flags & ISCSI_KWQE_INIT1_TIME_STAMPS_ENABLE,
1533                         req1->flags & ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE);
1534
1535         return 0;
1536 }
1537
1538 static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
1539 {
1540         struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
1541         struct bnx2x *bp = netdev_priv(dev->netdev);
1542         u32 pfid = bp->pfid;
1543         struct iscsi_kcqe kcqe;
1544         struct kcqe *cqes[1];
1545
1546         memset(&kcqe, 0, sizeof(kcqe));
1547         if (!dev->max_iscsi_conn) {
1548                 kcqe.completion_status =
1549                         ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
1550                 goto done;
1551         }
1552
1553         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1554                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1555         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1556                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1557                 req2->error_bit_map[1]);
1558
1559         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1560                   USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1561         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1562                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1563         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1564                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1565                 req2->error_bit_map[1]);
1566
1567         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1568                   CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1569
1570         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1571
1572 done:
1573         kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
1574         cqes[0] = (struct kcqe *) &kcqe;
1575         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1576
1577         return 0;
1578 }
1579
1580 static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1581 {
1582         struct cnic_local *cp = dev->cnic_priv;
1583         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1584
1585         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
1586                 struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1587
1588                 cnic_free_dma(dev, &iscsi->hq_info);
1589                 cnic_free_dma(dev, &iscsi->r2tq_info);
1590                 cnic_free_dma(dev, &iscsi->task_array_info);
1591                 cnic_free_id(&cp->cid_tbl, ctx->cid);
1592         } else {
1593                 cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid);
1594         }
1595
1596         ctx->cid = 0;
1597 }
1598
1599 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1600 {
1601         u32 cid;
1602         int ret, pages;
1603         struct cnic_local *cp = dev->cnic_priv;
1604         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1605         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1606
1607         if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
1608                 cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
1609                 if (cid == -1) {
1610                         ret = -ENOMEM;
1611                         goto error;
1612                 }
1613                 ctx->cid = cid;
1614                 return 0;
1615         }
1616
1617         cid = cnic_alloc_new_id(&cp->cid_tbl);
1618         if (cid == -1) {
1619                 ret = -ENOMEM;
1620                 goto error;
1621         }
1622
1623         ctx->cid = cid;
1624         pages = CNIC_PAGE_ALIGN(cp->task_array_size) / CNIC_PAGE_SIZE;
1625
1626         ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
1627         if (ret)
1628                 goto error;
1629
1630         pages = CNIC_PAGE_ALIGN(cp->r2tq_size) / CNIC_PAGE_SIZE;
1631         ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
1632         if (ret)
1633                 goto error;
1634
1635         pages = CNIC_PAGE_ALIGN(cp->hq_size) / CNIC_PAGE_SIZE;
1636         ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
1637         if (ret)
1638                 goto error;
1639
1640         return 0;
1641
1642 error:
1643         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1644         return ret;
1645 }
1646
1647 static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
1648                                 struct regpair *ctx_addr)
1649 {
1650         struct cnic_local *cp = dev->cnic_priv;
1651         struct cnic_eth_dev *ethdev = cp->ethdev;
1652         int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
1653         int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
1654         unsigned long align_off = 0;
1655         dma_addr_t ctx_map;
1656         void *ctx;
1657
1658         if (cp->ctx_align) {
1659                 unsigned long mask = cp->ctx_align - 1;
1660
1661                 if (cp->ctx_arr[blk].mapping & mask)
1662                         align_off = cp->ctx_align -
1663                                     (cp->ctx_arr[blk].mapping & mask);
1664         }
1665         ctx_map = cp->ctx_arr[blk].mapping + align_off +
1666                 (off * BNX2X_CONTEXT_MEM_SIZE);
1667         ctx = cp->ctx_arr[blk].ctx + align_off +
1668               (off * BNX2X_CONTEXT_MEM_SIZE);
1669         if (init)
1670                 memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
1671
1672         ctx_addr->lo = ctx_map & 0xffffffff;
1673         ctx_addr->hi = (u64) ctx_map >> 32;
1674         return ctx;
1675 }
1676
1677 static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
1678                                 u32 num)
1679 {
1680         struct cnic_local *cp = dev->cnic_priv;
1681         struct bnx2x *bp = netdev_priv(dev->netdev);
1682         struct iscsi_kwqe_conn_offload1 *req1 =
1683                         (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1684         struct iscsi_kwqe_conn_offload2 *req2 =
1685                         (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1686         struct iscsi_kwqe_conn_offload3 *req3;
1687         struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
1688         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1689         u32 cid = ctx->cid;
1690         u32 hw_cid = BNX2X_HW_CID(bp, cid);
1691         struct iscsi_context *ictx;
1692         struct regpair context_addr;
1693         int i, j, n = 2, n_max;
1694         u8 port = BP_PORT(bp);
1695
1696         ctx->ctx_flags = 0;
1697         if (!req2->num_additional_wqes)
1698                 return -EINVAL;
1699
1700         n_max = req2->num_additional_wqes + 2;
1701
1702         ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
1703         if (ictx == NULL)
1704                 return -ENOMEM;
1705
1706         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1707
1708         ictx->xstorm_ag_context.hq_prod = 1;
1709
1710         ictx->xstorm_st_context.iscsi.first_burst_length =
1711                 ISCSI_DEF_FIRST_BURST_LEN;
1712         ictx->xstorm_st_context.iscsi.max_send_pdu_length =
1713                 ISCSI_DEF_MAX_RECV_SEG_LEN;
1714         ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
1715                 req1->sq_page_table_addr_lo;
1716         ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
1717                 req1->sq_page_table_addr_hi;
1718         ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
1719         ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
1720         ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
1721                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1722         ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
1723                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1724         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
1725                 iscsi->hq_info.pgtbl[0];
1726         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
1727                 iscsi->hq_info.pgtbl[1];
1728         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
1729                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1730         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
1731                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1732         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
1733                 iscsi->r2tq_info.pgtbl[0];
1734         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
1735                 iscsi->r2tq_info.pgtbl[1];
1736         ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
1737                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1738         ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
1739                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1740         ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
1741                 BNX2X_ISCSI_PBL_NOT_CACHED;
1742         ictx->xstorm_st_context.iscsi.flags.flags |=
1743                 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
1744         ictx->xstorm_st_context.iscsi.flags.flags |=
1745                 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
1746         ictx->xstorm_st_context.common.ethernet.reserved_vlan_type =
1747                 ETH_P_8021Q;
1748         if (BNX2X_CHIP_IS_E2_PLUS(bp) &&
1749             bp->common.chip_port_mode == CHIP_2_PORT_MODE) {
1750
1751                 port = 0;
1752         }
1753         ictx->xstorm_st_context.common.flags =
1754                 1 << XSTORM_COMMON_CONTEXT_SECTION_PHYSQ_INITIALIZED_SHIFT;
1755         ictx->xstorm_st_context.common.flags =
1756                 port << XSTORM_COMMON_CONTEXT_SECTION_PBF_PORT_SHIFT;
1757
1758         ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
1759         /* TSTORM requires the base address of RQ DB & not PTE */
1760         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
1761                 req2->rq_page_table_addr_lo & CNIC_PAGE_MASK;
1762         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
1763                 req2->rq_page_table_addr_hi;
1764         ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
1765         ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
1766         ictx->tstorm_st_context.tcp.flags2 |=
1767                 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
1768         ictx->tstorm_st_context.tcp.ooo_support_mode =
1769                 TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
1770
1771         ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
1772
1773         ictx->ustorm_st_context.ring.rq.pbl_base.lo =
1774                 req2->rq_page_table_addr_lo;
1775         ictx->ustorm_st_context.ring.rq.pbl_base.hi =
1776                 req2->rq_page_table_addr_hi;
1777         ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
1778         ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
1779         ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
1780                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1781         ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
1782                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1783         ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
1784                 iscsi->r2tq_info.pgtbl[0];
1785         ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
1786                 iscsi->r2tq_info.pgtbl[1];
1787         ictx->ustorm_st_context.ring.cq_pbl_base.lo =
1788                 req1->cq_page_table_addr_lo;
1789         ictx->ustorm_st_context.ring.cq_pbl_base.hi =
1790                 req1->cq_page_table_addr_hi;
1791         ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
1792         ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
1793         ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
1794         ictx->ustorm_st_context.task_pbe_cache_index =
1795                 BNX2X_ISCSI_PBL_NOT_CACHED;
1796         ictx->ustorm_st_context.task_pdu_cache_index =
1797                 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
1798
1799         for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
1800                 if (j == 3) {
1801                         if (n >= n_max)
1802                                 break;
1803                         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1804                         j = 0;
1805                 }
1806                 ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
1807                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
1808                         req3->qp_first_pte[j].hi;
1809                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
1810                         req3->qp_first_pte[j].lo;
1811         }
1812
1813         ictx->ustorm_st_context.task_pbl_base.lo =
1814                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1815         ictx->ustorm_st_context.task_pbl_base.hi =
1816                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1817         ictx->ustorm_st_context.tce_phy_addr.lo =
1818                 iscsi->task_array_info.pgtbl[0];
1819         ictx->ustorm_st_context.tce_phy_addr.hi =
1820                 iscsi->task_array_info.pgtbl[1];
1821         ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1822         ictx->ustorm_st_context.num_cqs = cp->num_cqs;
1823         ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
1824         ictx->ustorm_st_context.negotiated_rx_and_flags |=
1825                 ISCSI_DEF_MAX_BURST_LEN;
1826         ictx->ustorm_st_context.negotiated_rx |=
1827                 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
1828                 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
1829
1830         ictx->cstorm_st_context.hq_pbl_base.lo =
1831                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1832         ictx->cstorm_st_context.hq_pbl_base.hi =
1833                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1834         ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
1835         ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
1836         ictx->cstorm_st_context.task_pbl_base.lo =
1837                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1838         ictx->cstorm_st_context.task_pbl_base.hi =
1839                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1840         /* CSTORM and USTORM initialization is different, CSTORM requires
1841          * CQ DB base & not PTE addr */
1842         ictx->cstorm_st_context.cq_db_base.lo =
1843                 req1->cq_page_table_addr_lo & CNIC_PAGE_MASK;
1844         ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
1845         ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1846         ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
1847         for (i = 0; i < cp->num_cqs; i++) {
1848                 ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
1849                         ISCSI_INITIAL_SN;
1850                 ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
1851                         ISCSI_INITIAL_SN;
1852         }
1853
1854         ictx->xstorm_ag_context.cdu_reserved =
1855                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
1856                                        ISCSI_CONNECTION_TYPE);
1857         ictx->ustorm_ag_context.cdu_usage =
1858                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
1859                                        ISCSI_CONNECTION_TYPE);
1860         return 0;
1861
1862 }
1863
1864 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
1865                                    u32 num, int *work)
1866 {
1867         struct iscsi_kwqe_conn_offload1 *req1;
1868         struct iscsi_kwqe_conn_offload2 *req2;
1869         struct cnic_local *cp = dev->cnic_priv;
1870         struct bnx2x *bp = netdev_priv(dev->netdev);
1871         struct cnic_context *ctx;
1872         struct iscsi_kcqe kcqe;
1873         struct kcqe *cqes[1];
1874         u32 l5_cid;
1875         int ret = 0;
1876
1877         if (num < 2) {
1878                 *work = num;
1879                 return -EINVAL;
1880         }
1881
1882         req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1883         req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1884         if ((num - 2) < req2->num_additional_wqes) {
1885                 *work = num;
1886                 return -EINVAL;
1887         }
1888         *work = 2 + req2->num_additional_wqes;
1889
1890         l5_cid = req1->iscsi_conn_id;
1891         if (l5_cid >= MAX_ISCSI_TBL_SZ)
1892                 return -EINVAL;
1893
1894         memset(&kcqe, 0, sizeof(kcqe));
1895         kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
1896         kcqe.iscsi_conn_id = l5_cid;
1897         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
1898
1899         ctx = &cp->ctx_tbl[l5_cid];
1900         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
1901                 kcqe.completion_status =
1902                         ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
1903                 goto done;
1904         }
1905
1906         if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
1907                 atomic_dec(&cp->iscsi_conn);
1908                 goto done;
1909         }
1910         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
1911         if (ret) {
1912                 atomic_dec(&cp->iscsi_conn);
1913                 ret = 0;
1914                 goto done;
1915         }
1916         ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
1917         if (ret < 0) {
1918                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
1919                 atomic_dec(&cp->iscsi_conn);
1920                 goto done;
1921         }
1922
1923         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1924         kcqe.iscsi_conn_context_id = BNX2X_HW_CID(bp, cp->ctx_tbl[l5_cid].cid);
1925
1926 done:
1927         cqes[0] = (struct kcqe *) &kcqe;
1928         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1929         return 0;
1930 }
1931
1932
1933 static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
1934 {
1935         struct cnic_local *cp = dev->cnic_priv;
1936         struct iscsi_kwqe_conn_update *req =
1937                 (struct iscsi_kwqe_conn_update *) kwqe;
1938         void *data;
1939         union l5cm_specific_data l5_data;
1940         u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
1941         int ret;
1942
1943         if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
1944                 return -EINVAL;
1945
1946         data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
1947         if (!data)
1948                 return -ENOMEM;
1949
1950         memcpy(data, kwqe, sizeof(struct kwqe));
1951
1952         ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
1953                         req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
1954         return ret;
1955 }
1956
1957 static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
1958 {
1959         struct cnic_local *cp = dev->cnic_priv;
1960         struct bnx2x *bp = netdev_priv(dev->netdev);
1961         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1962         union l5cm_specific_data l5_data;
1963         int ret;
1964         u32 hw_cid;
1965
1966         init_waitqueue_head(&ctx->waitq);
1967         ctx->wait_cond = 0;
1968         memset(&l5_data, 0, sizeof(l5_data));
1969         hw_cid = BNX2X_HW_CID(bp, ctx->cid);
1970
1971         ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
1972                                   hw_cid, NONE_CONNECTION_TYPE, &l5_data);
1973
1974         if (ret == 0) {
1975                 wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO);
1976                 if (unlikely(test_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags)))
1977                         return -EBUSY;
1978         }
1979
1980         return 0;
1981 }
1982
1983 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
1984 {
1985         struct cnic_local *cp = dev->cnic_priv;
1986         struct iscsi_kwqe_conn_destroy *req =
1987                 (struct iscsi_kwqe_conn_destroy *) kwqe;
1988         u32 l5_cid = req->reserved0;
1989         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1990         int ret = 0;
1991         struct iscsi_kcqe kcqe;
1992         struct kcqe *cqes[1];
1993
1994         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
1995                 goto skip_cfc_delete;
1996
1997         if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
1998                 unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
1999
2000                 if (delta > (2 * HZ))
2001                         delta = 0;
2002
2003                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2004                 queue_delayed_work(cnic_wq, &cp->delete_task, delta);
2005                 goto destroy_reply;
2006         }
2007
2008         ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
2009
2010 skip_cfc_delete:
2011         cnic_free_bnx2x_conn_resc(dev, l5_cid);
2012
2013         if (!ret) {
2014                 atomic_dec(&cp->iscsi_conn);
2015                 clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2016         }
2017
2018 destroy_reply:
2019         memset(&kcqe, 0, sizeof(kcqe));
2020         kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
2021         kcqe.iscsi_conn_id = l5_cid;
2022         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
2023         kcqe.iscsi_conn_context_id = req->context_id;
2024
2025         cqes[0] = (struct kcqe *) &kcqe;
2026         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
2027
2028         return 0;
2029 }
2030
2031 static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
2032                                       struct l4_kwq_connect_req1 *kwqe1,
2033                                       struct l4_kwq_connect_req3 *kwqe3,
2034                                       struct l5cm_active_conn_buffer *conn_buf)
2035 {
2036         struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
2037         struct l5cm_xstorm_conn_buffer *xstorm_buf =
2038                 &conn_buf->xstorm_conn_buffer;
2039         struct l5cm_tstorm_conn_buffer *tstorm_buf =
2040                 &conn_buf->tstorm_conn_buffer;
2041         struct regpair context_addr;
2042         u32 cid = BNX2X_SW_CID(kwqe1->cid);
2043         struct in6_addr src_ip, dst_ip;
2044         int i;
2045         u32 *addrp;
2046
2047         addrp = (u32 *) &conn_addr->local_ip_addr;
2048         for (i = 0; i < 4; i++, addrp++)
2049                 src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
2050
2051         addrp = (u32 *) &conn_addr->remote_ip_addr;
2052         for (i = 0; i < 4; i++, addrp++)
2053                 dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
2054
2055         cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
2056
2057         xstorm_buf->context_addr.hi = context_addr.hi;
2058         xstorm_buf->context_addr.lo = context_addr.lo;
2059         xstorm_buf->mss = 0xffff;
2060         xstorm_buf->rcv_buf = kwqe3->rcv_buf;
2061         if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
2062                 xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
2063         xstorm_buf->pseudo_header_checksum =
2064                 swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
2065
2066         if (kwqe3->ka_timeout) {
2067                 tstorm_buf->ka_enable = 1;
2068                 tstorm_buf->ka_timeout = kwqe3->ka_timeout;
2069                 tstorm_buf->ka_interval = kwqe3->ka_interval;
2070                 tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
2071         }
2072         tstorm_buf->max_rt_time = 0xffffffff;
2073 }
2074
2075 static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
2076 {
2077         struct bnx2x *bp = netdev_priv(dev->netdev);
2078         u32 pfid = bp->pfid;
2079         u8 *mac = dev->mac_addr;
2080
2081         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2082                  XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
2083         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2084                  XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
2085         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2086                  XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
2087         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2088                  XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
2089         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2090                  XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
2091         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2092                  XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
2093
2094         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2095                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
2096         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2097                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2098                  mac[4]);
2099         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2100                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
2101         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2102                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2103                  mac[2]);
2104         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2105                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[1]);
2106         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2107                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2108                  mac[0]);
2109 }
2110
2111 static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
2112                               u32 num, int *work)
2113 {
2114         struct cnic_local *cp = dev->cnic_priv;
2115         struct bnx2x *bp = netdev_priv(dev->netdev);
2116         struct l4_kwq_connect_req1 *kwqe1 =
2117                 (struct l4_kwq_connect_req1 *) wqes[0];
2118         struct l4_kwq_connect_req3 *kwqe3;
2119         struct l5cm_active_conn_buffer *conn_buf;
2120         struct l5cm_conn_addr_params *conn_addr;
2121         union l5cm_specific_data l5_data;
2122         u32 l5_cid = kwqe1->pg_cid;
2123         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
2124         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2125         int ret;
2126
2127         if (num < 2) {
2128                 *work = num;
2129                 return -EINVAL;
2130         }
2131
2132         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
2133                 *work = 3;
2134         else
2135                 *work = 2;
2136
2137         if (num < *work) {
2138                 *work = num;
2139                 return -EINVAL;
2140         }
2141
2142         if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
2143                 netdev_err(dev->netdev, "conn_buf size too big\n");
2144                 return -ENOMEM;
2145         }
2146         conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2147         if (!conn_buf)
2148                 return -ENOMEM;
2149
2150         memset(conn_buf, 0, sizeof(*conn_buf));
2151
2152         conn_addr = &conn_buf->conn_addr_buf;
2153         conn_addr->remote_addr_0 = csk->ha[0];
2154         conn_addr->remote_addr_1 = csk->ha[1];
2155         conn_addr->remote_addr_2 = csk->ha[2];
2156         conn_addr->remote_addr_3 = csk->ha[3];
2157         conn_addr->remote_addr_4 = csk->ha[4];
2158         conn_addr->remote_addr_5 = csk->ha[5];
2159
2160         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
2161                 struct l4_kwq_connect_req2 *kwqe2 =
2162                         (struct l4_kwq_connect_req2 *) wqes[1];
2163
2164                 conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
2165                 conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
2166                 conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
2167
2168                 conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
2169                 conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
2170                 conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
2171                 conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
2172         }
2173         kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
2174
2175         conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
2176         conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
2177         conn_addr->local_tcp_port = kwqe1->src_port;
2178         conn_addr->remote_tcp_port = kwqe1->dst_port;
2179
2180         conn_addr->pmtu = kwqe3->pmtu;
2181         cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
2182
2183         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
2184                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(bp->pfid), csk->vlan_id);
2185
2186         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
2187                         kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2188         if (!ret)
2189                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2190
2191         return ret;
2192 }
2193
2194 static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
2195 {
2196         struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
2197         union l5cm_specific_data l5_data;
2198         int ret;
2199
2200         memset(&l5_data, 0, sizeof(l5_data));
2201         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
2202                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2203         return ret;
2204 }
2205
2206 static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
2207 {
2208         struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
2209         union l5cm_specific_data l5_data;
2210         int ret;
2211
2212         memset(&l5_data, 0, sizeof(l5_data));
2213         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
2214                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2215         return ret;
2216 }
2217 static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2218 {
2219         struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
2220         struct l4_kcq kcqe;
2221         struct kcqe *cqes[1];
2222
2223         memset(&kcqe, 0, sizeof(kcqe));
2224         kcqe.pg_host_opaque = req->host_opaque;
2225         kcqe.pg_cid = req->host_opaque;
2226         kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
2227         cqes[0] = (struct kcqe *) &kcqe;
2228         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2229         return 0;
2230 }
2231
2232 static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2233 {
2234         struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
2235         struct l4_kcq kcqe;
2236         struct kcqe *cqes[1];
2237
2238         memset(&kcqe, 0, sizeof(kcqe));
2239         kcqe.pg_host_opaque = req->pg_host_opaque;
2240         kcqe.pg_cid = req->pg_cid;
2241         kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
2242         cqes[0] = (struct kcqe *) &kcqe;
2243         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2244         return 0;
2245 }
2246
2247 static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
2248 {
2249         struct fcoe_kwqe_stat *req;
2250         struct fcoe_stat_ramrod_params *fcoe_stat;
2251         union l5cm_specific_data l5_data;
2252         struct cnic_local *cp = dev->cnic_priv;
2253         struct bnx2x *bp = netdev_priv(dev->netdev);
2254         int ret;
2255         u32 cid;
2256
2257         req = (struct fcoe_kwqe_stat *) kwqe;
2258         cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid);
2259
2260         fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2261         if (!fcoe_stat)
2262                 return -ENOMEM;
2263
2264         memset(fcoe_stat, 0, sizeof(*fcoe_stat));
2265         memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
2266
2267         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT_FUNC, cid,
2268                                   FCOE_CONNECTION_TYPE, &l5_data);
2269         return ret;
2270 }
2271
2272 static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
2273                                  u32 num, int *work)
2274 {
2275         int ret;
2276         struct cnic_local *cp = dev->cnic_priv;
2277         struct bnx2x *bp = netdev_priv(dev->netdev);
2278         u32 cid;
2279         struct fcoe_init_ramrod_params *fcoe_init;
2280         struct fcoe_kwqe_init1 *req1;
2281         struct fcoe_kwqe_init2 *req2;
2282         struct fcoe_kwqe_init3 *req3;
2283         union l5cm_specific_data l5_data;
2284
2285         if (num < 3) {
2286                 *work = num;
2287                 return -EINVAL;
2288         }
2289         req1 = (struct fcoe_kwqe_init1 *) wqes[0];
2290         req2 = (struct fcoe_kwqe_init2 *) wqes[1];
2291         req3 = (struct fcoe_kwqe_init3 *) wqes[2];
2292         if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
2293                 *work = 1;
2294                 return -EINVAL;
2295         }
2296         if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
2297                 *work = 2;
2298                 return -EINVAL;
2299         }
2300
2301         if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
2302                 netdev_err(dev->netdev, "fcoe_init size too big\n");
2303                 return -ENOMEM;
2304         }
2305         fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2306         if (!fcoe_init)
2307                 return -ENOMEM;
2308
2309         memset(fcoe_init, 0, sizeof(*fcoe_init));
2310         memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
2311         memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
2312         memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
2313         fcoe_init->eq_pbl_base.lo = cp->kcq2.dma.pgtbl_map & 0xffffffff;
2314         fcoe_init->eq_pbl_base.hi = (u64) cp->kcq2.dma.pgtbl_map >> 32;
2315         fcoe_init->eq_pbl_size = cp->kcq2.dma.num_pages;
2316
2317         fcoe_init->sb_num = cp->status_blk_num;
2318         fcoe_init->eq_prod = MAX_KCQ_IDX;
2319         fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
2320         cp->kcq2.sw_prod_idx = 0;
2321
2322         cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid);
2323         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT_FUNC, cid,
2324                                   FCOE_CONNECTION_TYPE, &l5_data);
2325         *work = 3;
2326         return ret;
2327 }
2328
2329 static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
2330                                  u32 num, int *work)
2331 {
2332         int ret = 0;
2333         u32 cid = -1, l5_cid;
2334         struct cnic_local *cp = dev->cnic_priv;
2335         struct bnx2x *bp = netdev_priv(dev->netdev);
2336         struct fcoe_kwqe_conn_offload1 *req1;
2337         struct fcoe_kwqe_conn_offload2 *req2;
2338         struct fcoe_kwqe_conn_offload3 *req3;
2339         struct fcoe_kwqe_conn_offload4 *req4;
2340         struct fcoe_conn_offload_ramrod_params *fcoe_offload;
2341         struct cnic_context *ctx;
2342         struct fcoe_context *fctx;
2343         struct regpair ctx_addr;
2344         union l5cm_specific_data l5_data;
2345         struct fcoe_kcqe kcqe;
2346         struct kcqe *cqes[1];
2347
2348         if (num < 4) {
2349                 *work = num;
2350                 return -EINVAL;
2351         }
2352         req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
2353         req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
2354         req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
2355         req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
2356
2357         *work = 4;
2358
2359         l5_cid = req1->fcoe_conn_id;
2360         if (l5_cid >= dev->max_fcoe_conn)
2361                 goto err_reply;
2362
2363         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2364
2365         ctx = &cp->ctx_tbl[l5_cid];
2366         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2367                 goto err_reply;
2368
2369         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
2370         if (ret) {
2371                 ret = 0;
2372                 goto err_reply;
2373         }
2374         cid = ctx->cid;
2375
2376         fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
2377         if (fctx) {
2378                 u32 hw_cid = BNX2X_HW_CID(bp, cid);
2379                 u32 val;
2380
2381                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
2382                                              FCOE_CONNECTION_TYPE);
2383                 fctx->xstorm_ag_context.cdu_reserved = val;
2384                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
2385                                              FCOE_CONNECTION_TYPE);
2386                 fctx->ustorm_ag_context.cdu_usage = val;
2387         }
2388         if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
2389                 netdev_err(dev->netdev, "fcoe_offload size too big\n");
2390                 goto err_reply;
2391         }
2392         fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2393         if (!fcoe_offload)
2394                 goto err_reply;
2395
2396         memset(fcoe_offload, 0, sizeof(*fcoe_offload));
2397         memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
2398         memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
2399         memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
2400         memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
2401
2402         cid = BNX2X_HW_CID(bp, cid);
2403         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
2404                                   FCOE_CONNECTION_TYPE, &l5_data);
2405         if (!ret)
2406                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2407
2408         return ret;
2409
2410 err_reply:
2411         if (cid != -1)
2412                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
2413
2414         memset(&kcqe, 0, sizeof(kcqe));
2415         kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
2416         kcqe.fcoe_conn_id = req1->fcoe_conn_id;
2417         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
2418
2419         cqes[0] = (struct kcqe *) &kcqe;
2420         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2421         return ret;
2422 }
2423
2424 static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
2425 {
2426         struct fcoe_kwqe_conn_enable_disable *req;
2427         struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
2428         union l5cm_specific_data l5_data;
2429         int ret;
2430         u32 cid, l5_cid;
2431         struct cnic_local *cp = dev->cnic_priv;
2432
2433         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2434         cid = req->context_id;
2435         l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
2436
2437         if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
2438                 netdev_err(dev->netdev, "fcoe_enable size too big\n");
2439                 return -ENOMEM;
2440         }
2441         fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2442         if (!fcoe_enable)
2443                 return -ENOMEM;
2444
2445         memset(fcoe_enable, 0, sizeof(*fcoe_enable));
2446         memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
2447         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
2448                                   FCOE_CONNECTION_TYPE, &l5_data);
2449         return ret;
2450 }
2451
2452 static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
2453 {
2454         struct fcoe_kwqe_conn_enable_disable *req;
2455         struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
2456         union l5cm_specific_data l5_data;
2457         int ret;
2458         u32 cid, l5_cid;
2459         struct cnic_local *cp = dev->cnic_priv;
2460
2461         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2462         cid = req->context_id;
2463         l5_cid = req->conn_id;
2464         if (l5_cid >= dev->max_fcoe_conn)
2465                 return -EINVAL;
2466
2467         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2468
2469         if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
2470                 netdev_err(dev->netdev, "fcoe_disable size too big\n");
2471                 return -ENOMEM;
2472         }
2473         fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2474         if (!fcoe_disable)
2475                 return -ENOMEM;
2476
2477         memset(fcoe_disable, 0, sizeof(*fcoe_disable));
2478         memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
2479         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
2480                                   FCOE_CONNECTION_TYPE, &l5_data);
2481         return ret;
2482 }
2483
2484 static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2485 {
2486         struct fcoe_kwqe_conn_destroy *req;
2487         union l5cm_specific_data l5_data;
2488         int ret;
2489         u32 cid, l5_cid;
2490         struct cnic_local *cp = dev->cnic_priv;
2491         struct cnic_context *ctx;
2492         struct fcoe_kcqe kcqe;
2493         struct kcqe *cqes[1];
2494
2495         req = (struct fcoe_kwqe_conn_destroy *) kwqe;
2496         cid = req->context_id;
2497         l5_cid = req->conn_id;
2498         if (l5_cid >= dev->max_fcoe_conn)
2499                 return -EINVAL;
2500
2501         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2502
2503         ctx = &cp->ctx_tbl[l5_cid];
2504
2505         init_waitqueue_head(&ctx->waitq);
2506         ctx->wait_cond = 0;
2507
2508         memset(&kcqe, 0, sizeof(kcqe));
2509         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_ERROR;
2510         memset(&l5_data, 0, sizeof(l5_data));
2511         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
2512                                   FCOE_CONNECTION_TYPE, &l5_data);
2513         if (ret == 0) {
2514                 wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO);
2515                 if (ctx->wait_cond)
2516                         kcqe.completion_status = 0;
2517         }
2518
2519         set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2520         queue_delayed_work(cnic_wq, &cp->delete_task, msecs_to_jiffies(2000));
2521
2522         kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
2523         kcqe.fcoe_conn_id = req->conn_id;
2524         kcqe.fcoe_conn_context_id = cid;
2525
2526         cqes[0] = (struct kcqe *) &kcqe;
2527         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2528         return ret;
2529 }
2530
2531 static void cnic_bnx2x_delete_wait(struct cnic_dev *dev, u32 start_cid)
2532 {
2533         struct cnic_local *cp = dev->cnic_priv;
2534         u32 i;
2535
2536         for (i = start_cid; i < cp->max_cid_space; i++) {
2537                 struct cnic_context *ctx = &cp->ctx_tbl[i];
2538                 int j;
2539
2540                 while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
2541                         msleep(10);
2542
2543                 for (j = 0; j < 5; j++) {
2544                         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2545                                 break;
2546                         msleep(20);
2547                 }
2548
2549                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2550                         netdev_warn(dev->netdev, "CID %x not deleted\n",
2551                                    ctx->cid);
2552         }
2553 }
2554
2555 static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2556 {
2557         struct fcoe_kwqe_destroy *req;
2558         union l5cm_specific_data l5_data;
2559         struct cnic_local *cp = dev->cnic_priv;
2560         struct bnx2x *bp = netdev_priv(dev->netdev);
2561         int ret;
2562         u32 cid;
2563
2564         cnic_bnx2x_delete_wait(dev, MAX_ISCSI_TBL_SZ);
2565
2566         req = (struct fcoe_kwqe_destroy *) kwqe;
2567         cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid);
2568
2569         memset(&l5_data, 0, sizeof(l5_data));
2570         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY_FUNC, cid,
2571                                   FCOE_CONNECTION_TYPE, &l5_data);
2572         return ret;
2573 }
2574
2575 static void cnic_bnx2x_kwqe_err(struct cnic_dev *dev, struct kwqe *kwqe)
2576 {
2577         struct cnic_local *cp = dev->cnic_priv;
2578         struct kcqe kcqe;
2579         struct kcqe *cqes[1];
2580         u32 cid;
2581         u32 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2582         u32 layer_code = kwqe->kwqe_op_flag & KWQE_LAYER_MASK;
2583         u32 kcqe_op;
2584         int ulp_type;
2585
2586         cid = kwqe->kwqe_info0;
2587         memset(&kcqe, 0, sizeof(kcqe));
2588
2589         if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_FCOE) {
2590                 u32 l5_cid = 0;
2591
2592                 ulp_type = CNIC_ULP_FCOE;
2593                 if (opcode == FCOE_KWQE_OPCODE_DISABLE_CONN) {
2594                         struct fcoe_kwqe_conn_enable_disable *req;
2595
2596                         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2597                         kcqe_op = FCOE_KCQE_OPCODE_DISABLE_CONN;
2598                         cid = req->context_id;
2599                         l5_cid = req->conn_id;
2600                 } else if (opcode == FCOE_KWQE_OPCODE_DESTROY) {
2601                         kcqe_op = FCOE_KCQE_OPCODE_DESTROY_FUNC;
2602                 } else {
2603                         return;
2604                 }
2605                 kcqe.kcqe_op_flag = kcqe_op << KCQE_FLAGS_OPCODE_SHIFT;
2606                 kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_FCOE;
2607                 kcqe.kcqe_info1 = FCOE_KCQE_COMPLETION_STATUS_PARITY_ERROR;
2608                 kcqe.kcqe_info2 = cid;
2609                 kcqe.kcqe_info0 = l5_cid;
2610
2611         } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_ISCSI) {
2612                 ulp_type = CNIC_ULP_ISCSI;
2613                 if (opcode == ISCSI_KWQE_OPCODE_UPDATE_CONN)
2614                         cid = kwqe->kwqe_info1;
2615
2616                 kcqe.kcqe_op_flag = (opcode + 0x10) << KCQE_FLAGS_OPCODE_SHIFT;
2617                 kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_ISCSI;
2618                 kcqe.kcqe_info1 = ISCSI_KCQE_COMPLETION_STATUS_PARITY_ERR;
2619                 kcqe.kcqe_info2 = cid;
2620                 cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &kcqe.kcqe_info0);
2621
2622         } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L4) {
2623                 struct l4_kcq *l4kcqe = (struct l4_kcq *) &kcqe;
2624
2625                 ulp_type = CNIC_ULP_L4;
2626                 if (opcode == L4_KWQE_OPCODE_VALUE_CONNECT1)
2627                         kcqe_op = L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE;
2628                 else if (opcode == L4_KWQE_OPCODE_VALUE_RESET)
2629                         kcqe_op = L4_KCQE_OPCODE_VALUE_RESET_COMP;
2630                 else if (opcode == L4_KWQE_OPCODE_VALUE_CLOSE)
2631                         kcqe_op = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
2632                 else
2633                         return;
2634
2635                 kcqe.kcqe_op_flag = (kcqe_op << KCQE_FLAGS_OPCODE_SHIFT) |
2636                                     KCQE_FLAGS_LAYER_MASK_L4;
2637                 l4kcqe->status = L4_KCQE_COMPLETION_STATUS_PARITY_ERROR;
2638                 l4kcqe->cid = cid;
2639                 cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &l4kcqe->conn_id);
2640         } else {
2641                 return;
2642         }
2643
2644         cqes[0] = &kcqe;
2645         cnic_reply_bnx2x_kcqes(dev, ulp_type, cqes, 1);
2646 }
2647
2648 static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev,
2649                                          struct kwqe *wqes[], u32 num_wqes)
2650 {
2651         int i, work, ret;
2652         u32 opcode;
2653         struct kwqe *kwqe;
2654
2655         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2656                 return -EAGAIN;         /* bnx2 is down */
2657
2658         for (i = 0; i < num_wqes; ) {
2659                 kwqe = wqes[i];
2660                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2661                 work = 1;
2662
2663                 switch (opcode) {
2664                 case ISCSI_KWQE_OPCODE_INIT1:
2665                         ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
2666                         break;
2667                 case ISCSI_KWQE_OPCODE_INIT2:
2668                         ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
2669                         break;
2670                 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
2671                         ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
2672                                                      num_wqes - i, &work);
2673                         break;
2674                 case ISCSI_KWQE_OPCODE_UPDATE_CONN:
2675                         ret = cnic_bnx2x_iscsi_update(dev, kwqe);
2676                         break;
2677                 case ISCSI_KWQE_OPCODE_DESTROY_CONN:
2678                         ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
2679                         break;
2680                 case L4_KWQE_OPCODE_VALUE_CONNECT1:
2681                         ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
2682                                                  &work);
2683                         break;
2684                 case L4_KWQE_OPCODE_VALUE_CLOSE:
2685                         ret = cnic_bnx2x_close(dev, kwqe);
2686                         break;
2687                 case L4_KWQE_OPCODE_VALUE_RESET:
2688                         ret = cnic_bnx2x_reset(dev, kwqe);
2689                         break;
2690                 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
2691                         ret = cnic_bnx2x_offload_pg(dev, kwqe);
2692                         break;
2693                 case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
2694                         ret = cnic_bnx2x_update_pg(dev, kwqe);
2695                         break;
2696                 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
2697                         ret = 0;
2698                         break;
2699                 default:
2700                         ret = 0;
2701                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2702                                    opcode);
2703                         break;
2704                 }
2705                 if (ret < 0) {
2706                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2707                                    opcode);
2708
2709                         /* Possibly bnx2x parity error, send completion
2710                          * to ulp drivers with error code to speed up
2711                          * cleanup and reset recovery.
2712                          */
2713                         if (ret == -EIO || ret == -EAGAIN)
2714                                 cnic_bnx2x_kwqe_err(dev, kwqe);
2715                 }
2716                 i += work;
2717         }
2718         return 0;
2719 }
2720
2721 static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
2722                                         struct kwqe *wqes[], u32 num_wqes)
2723 {
2724         struct bnx2x *bp = netdev_priv(dev->netdev);
2725         int i, work, ret;
2726         u32 opcode;
2727         struct kwqe *kwqe;
2728
2729         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2730                 return -EAGAIN;         /* bnx2 is down */
2731
2732         if (!BNX2X_CHIP_IS_E2_PLUS(bp))
2733                 return -EINVAL;
2734
2735         for (i = 0; i < num_wqes; ) {
2736                 kwqe = wqes[i];
2737                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2738                 work = 1;
2739
2740                 switch (opcode) {
2741                 case FCOE_KWQE_OPCODE_INIT1:
2742                         ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
2743                                                     num_wqes - i, &work);
2744                         break;
2745                 case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
2746                         ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
2747                                                     num_wqes - i, &work);
2748                         break;
2749                 case FCOE_KWQE_OPCODE_ENABLE_CONN:
2750                         ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
2751                         break;
2752                 case FCOE_KWQE_OPCODE_DISABLE_CONN:
2753                         ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
2754                         break;
2755                 case FCOE_KWQE_OPCODE_DESTROY_CONN:
2756                         ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
2757                         break;
2758                 case FCOE_KWQE_OPCODE_DESTROY:
2759                         ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
2760                         break;
2761                 case FCOE_KWQE_OPCODE_STAT:
2762                         ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
2763                         break;
2764                 default:
2765                         ret = 0;
2766                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2767                                    opcode);
2768                         break;
2769                 }
2770                 if (ret < 0) {
2771                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2772                                    opcode);
2773
2774                         /* Possibly bnx2x parity error, send completion
2775                          * to ulp drivers with error code to speed up
2776                          * cleanup and reset recovery.
2777                          */
2778                         if (ret == -EIO || ret == -EAGAIN)
2779                                 cnic_bnx2x_kwqe_err(dev, kwqe);
2780                 }
2781                 i += work;
2782         }
2783         return 0;
2784 }
2785
2786 static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
2787                                    u32 num_wqes)
2788 {
2789         int ret = -EINVAL;
2790         u32 layer_code;
2791
2792         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2793                 return -EAGAIN;         /* bnx2x is down */
2794
2795         if (!num_wqes)
2796                 return 0;
2797
2798         layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
2799         switch (layer_code) {
2800         case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
2801         case KWQE_FLAGS_LAYER_MASK_L4:
2802         case KWQE_FLAGS_LAYER_MASK_L2:
2803                 ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
2804                 break;
2805
2806         case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
2807                 ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
2808                 break;
2809         }
2810         return ret;
2811 }
2812
2813 static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
2814 {
2815         if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
2816                 return KCQE_FLAGS_LAYER_MASK_L4;
2817
2818         return opflag & KCQE_FLAGS_LAYER_MASK;
2819 }
2820
2821 static void service_kcqes(struct cnic_dev *dev, int num_cqes)
2822 {
2823         struct cnic_local *cp = dev->cnic_priv;
2824         int i, j, comp = 0;
2825
2826         i = 0;
2827         j = 1;
2828         while (num_cqes) {
2829                 struct cnic_ulp_ops *ulp_ops;
2830                 int ulp_type;
2831                 u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
2832                 u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag);
2833
2834                 if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
2835                         comp++;
2836
2837                 while (j < num_cqes) {
2838                         u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
2839
2840                         if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
2841                                 break;
2842
2843                         if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
2844                                 comp++;
2845                         j++;
2846                 }
2847
2848                 if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
2849                         ulp_type = CNIC_ULP_RDMA;
2850                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
2851                         ulp_type = CNIC_ULP_ISCSI;
2852                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE)
2853                         ulp_type = CNIC_ULP_FCOE;
2854                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
2855                         ulp_type = CNIC_ULP_L4;
2856                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
2857                         goto end;
2858                 else {
2859                         netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
2860                                    kcqe_op_flag);
2861                         goto end;
2862                 }
2863
2864                 rcu_read_lock();
2865                 ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
2866                 if (likely(ulp_ops)) {
2867                         ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
2868                                                   cp->completed_kcq + i, j);
2869                 }
2870                 rcu_read_unlock();
2871 end:
2872                 num_cqes -= j;
2873                 i += j;
2874                 j = 1;
2875         }
2876         if (unlikely(comp))
2877                 cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
2878 }
2879
2880 static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
2881 {
2882         struct cnic_local *cp = dev->cnic_priv;
2883         u16 i, ri, hw_prod, last;
2884         struct kcqe *kcqe;
2885         int kcqe_cnt = 0, last_cnt = 0;
2886
2887         i = ri = last = info->sw_prod_idx;
2888         ri &= MAX_KCQ_IDX;
2889         hw_prod = *info->hw_prod_idx_ptr;
2890         hw_prod = info->hw_idx(hw_prod);
2891
2892         while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
2893                 kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
2894                 cp->completed_kcq[kcqe_cnt++] = kcqe;
2895                 i = info->next_idx(i);
2896                 ri = i & MAX_KCQ_IDX;
2897                 if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
2898                         last_cnt = kcqe_cnt;
2899                         last = i;
2900                 }
2901         }
2902
2903         info->sw_prod_idx = last;
2904         return last_cnt;
2905 }
2906
2907 static int cnic_l2_completion(struct cnic_local *cp)
2908 {
2909         u16 hw_cons, sw_cons;
2910         struct cnic_uio_dev *udev = cp->udev;
2911         union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
2912                                         (udev->l2_ring + (2 * CNIC_PAGE_SIZE));
2913         u32 cmd;
2914         int comp = 0;
2915
2916         if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
2917                 return 0;
2918
2919         hw_cons = *cp->rx_cons_ptr;
2920         if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
2921                 hw_cons++;
2922
2923         sw_cons = cp->rx_cons;
2924         while (sw_cons != hw_cons) {
2925                 u8 cqe_fp_flags;
2926
2927                 cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
2928                 cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
2929                 if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
2930                         cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
2931                         cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
2932                         if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
2933                             cmd == RAMROD_CMD_ID_ETH_HALT)
2934                                 comp++;
2935                 }
2936                 sw_cons = BNX2X_NEXT_RCQE(sw_cons);
2937         }
2938         return comp;
2939 }
2940
2941 static void cnic_chk_pkt_rings(struct cnic_local *cp)
2942 {
2943         u16 rx_cons, tx_cons;
2944         int comp = 0;
2945
2946         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
2947                 return;
2948
2949         rx_cons = *cp->rx_cons_ptr;
2950         tx_cons = *cp->tx_cons_ptr;
2951         if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
2952                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
2953                         comp = cnic_l2_completion(cp);
2954
2955                 cp->tx_cons = tx_cons;
2956                 cp->rx_cons = rx_cons;
2957
2958                 if (cp->udev)
2959                         uio_event_notify(&cp->udev->cnic_uinfo);
2960         }
2961         if (comp)
2962                 clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
2963 }
2964
2965 static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
2966 {
2967         struct cnic_local *cp = dev->cnic_priv;
2968         u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2969         int kcqe_cnt;
2970
2971         /* status block index must be read before reading other fields */
2972         rmb();
2973         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2974
2975         while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
2976
2977                 service_kcqes(dev, kcqe_cnt);
2978
2979                 /* Tell compiler that status_blk fields can change. */
2980                 barrier();
2981                 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2982                 /* status block index must be read first */
2983                 rmb();
2984                 cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2985         }
2986
2987         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
2988
2989         cnic_chk_pkt_rings(cp);
2990
2991         return status_idx;
2992 }
2993
2994 static int cnic_service_bnx2(void *data, void *status_blk)
2995 {
2996         struct cnic_dev *dev = data;
2997
2998         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2999                 struct status_block *sblk = status_blk;
3000
3001                 return sblk->status_idx;
3002         }
3003
3004         return cnic_service_bnx2_queues(dev);
3005 }
3006
3007 static void cnic_service_bnx2_msix(unsigned long data)
3008 {
3009         struct cnic_dev *dev = (struct cnic_dev *) data;
3010         struct cnic_local *cp = dev->cnic_priv;
3011
3012         cp->last_status_idx = cnic_service_bnx2_queues(dev);
3013
3014         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
3015                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
3016 }
3017
3018 static void cnic_doirq(struct cnic_dev *dev)
3019 {
3020         struct cnic_local *cp = dev->cnic_priv;
3021
3022         if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
3023                 u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
3024
3025                 prefetch(cp->status_blk.gen);
3026                 prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
3027
3028                 tasklet_schedule(&cp->cnic_irq_task);
3029         }
3030 }
3031
3032 static irqreturn_t cnic_irq(int irq, void *dev_instance)
3033 {
3034         struct cnic_dev *dev = dev_instance;
3035         struct cnic_local *cp = dev->cnic_priv;
3036
3037         if (cp->ack_int)
3038                 cp->ack_int(dev);
3039
3040         cnic_doirq(dev);
3041
3042         return IRQ_HANDLED;
3043 }
3044
3045 static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
3046                                       u16 index, u8 op, u8 update)
3047 {
3048         struct bnx2x *bp = netdev_priv(dev->netdev);
3049         u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp) * 32 +
3050                        COMMAND_REG_INT_ACK);
3051         struct igu_ack_register igu_ack;
3052
3053         igu_ack.status_block_index = index;
3054         igu_ack.sb_id_and_flags =
3055                         ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
3056                          (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
3057                          (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
3058                          (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
3059
3060         CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
3061 }
3062
3063 static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
3064                             u16 index, u8 op, u8 update)
3065 {
3066         struct igu_regular cmd_data;
3067         u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
3068
3069         cmd_data.sb_id_and_flags =
3070                 (index << IGU_REGULAR_SB_INDEX_SHIFT) |
3071                 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
3072                 (update << IGU_REGULAR_BUPDATE_SHIFT) |
3073                 (op << IGU_REGULAR_ENABLE_INT_SHIFT);
3074
3075
3076         CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
3077 }
3078
3079 static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
3080 {
3081         struct cnic_local *cp = dev->cnic_priv;
3082
3083         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
3084                            IGU_INT_DISABLE, 0);
3085 }
3086
3087 static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
3088 {
3089         struct cnic_local *cp = dev->cnic_priv;
3090
3091         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0,
3092                         IGU_INT_DISABLE, 0);
3093 }
3094
3095 static void cnic_arm_bnx2x_msix(struct cnic_dev *dev, u32 idx)
3096 {
3097         struct cnic_local *cp = dev->cnic_priv;
3098
3099         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, idx,
3100                            IGU_INT_ENABLE, 1);
3101 }
3102
3103 static void cnic_arm_bnx2x_e2_msix(struct cnic_dev *dev, u32 idx)
3104 {
3105         struct cnic_local *cp = dev->cnic_priv;
3106
3107         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, idx,
3108                         IGU_INT_ENABLE, 1);
3109 }
3110
3111 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
3112 {
3113         u32 last_status = *info->status_idx_ptr;
3114         int kcqe_cnt;
3115
3116         /* status block index must be read before reading the KCQ */
3117         rmb();
3118         while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
3119
3120                 service_kcqes(dev, kcqe_cnt);
3121
3122                 /* Tell compiler that sblk fields can change. */
3123                 barrier();
3124
3125                 last_status = *info->status_idx_ptr;
3126                 /* status block index must be read before reading the KCQ */
3127                 rmb();
3128         }
3129         return last_status;
3130 }
3131
3132 static void cnic_service_bnx2x_bh(unsigned long data)
3133 {
3134         struct cnic_dev *dev = (struct cnic_dev *) data;
3135         struct cnic_local *cp = dev->cnic_priv;
3136         struct bnx2x *bp = netdev_priv(dev->netdev);
3137         u32 status_idx, new_status_idx;
3138
3139         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
3140                 return;
3141
3142         while (1) {
3143                 status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
3144
3145                 CNIC_WR16(dev, cp->kcq1.io_addr,
3146                           cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
3147
3148                 if (!CNIC_SUPPORTS_FCOE(bp)) {
3149                         cp->arm_int(dev, status_idx);
3150                         break;
3151                 }
3152
3153                 new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
3154
3155                 if (new_status_idx != status_idx)
3156                         continue;
3157
3158                 CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
3159                           MAX_KCQ_IDX);
3160
3161                 cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
3162                                 status_idx, IGU_INT_ENABLE, 1);
3163
3164                 break;
3165         }
3166 }
3167
3168 static int cnic_service_bnx2x(void *data, void *status_blk)
3169 {
3170         struct cnic_dev *dev = data;
3171         struct cnic_local *cp = dev->cnic_priv;
3172
3173         if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
3174                 cnic_doirq(dev);
3175
3176         cnic_chk_pkt_rings(cp);
3177
3178         return 0;
3179 }
3180
3181 static void cnic_ulp_stop_one(struct cnic_local *cp, int if_type)
3182 {
3183         struct cnic_ulp_ops *ulp_ops;
3184
3185         if (if_type == CNIC_ULP_ISCSI)
3186                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
3187
3188         mutex_lock(&cnic_lock);
3189         ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3190                                             lockdep_is_held(&cnic_lock));
3191         if (!ulp_ops) {
3192                 mutex_unlock(&cnic_lock);
3193                 return;
3194         }
3195         set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3196         mutex_unlock(&cnic_lock);
3197
3198         if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3199                 ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
3200
3201         clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3202 }
3203
3204 static void cnic_ulp_stop(struct cnic_dev *dev)
3205 {
3206         struct cnic_local *cp = dev->cnic_priv;
3207         int if_type;
3208
3209         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++)
3210                 cnic_ulp_stop_one(cp, if_type);
3211 }
3212
3213 static void cnic_ulp_start(struct cnic_dev *dev)
3214 {
3215         struct cnic_local *cp = dev->cnic_priv;
3216         int if_type;
3217
3218         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
3219                 struct cnic_ulp_ops *ulp_ops;
3220
3221                 mutex_lock(&cnic_lock);
3222                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3223                                                     lockdep_is_held(&cnic_lock));
3224                 if (!ulp_ops || !ulp_ops->cnic_start) {
3225                         mutex_unlock(&cnic_lock);
3226                         continue;
3227                 }
3228                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3229                 mutex_unlock(&cnic_lock);
3230
3231                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3232                         ulp_ops->cnic_start(cp->ulp_handle[if_type]);
3233
3234                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3235         }
3236 }
3237
3238 static int cnic_copy_ulp_stats(struct cnic_dev *dev, int ulp_type)
3239 {
3240         struct cnic_local *cp = dev->cnic_priv;
3241         struct cnic_ulp_ops *ulp_ops;
3242         int rc;
3243
3244         mutex_lock(&cnic_lock);
3245         ulp_ops = rcu_dereference_protected(cp->ulp_ops[ulp_type],
3246                                             lockdep_is_held(&cnic_lock));
3247         if (ulp_ops && ulp_ops->cnic_get_stats)
3248                 rc = ulp_ops->cnic_get_stats(cp->ulp_handle[ulp_type]);
3249         else
3250                 rc = -ENODEV;
3251         mutex_unlock(&cnic_lock);
3252         return rc;
3253 }
3254
3255 static int cnic_ctl(void *data, struct cnic_ctl_info *info)
3256 {
3257         struct cnic_dev *dev = data;
3258         int ulp_type = CNIC_ULP_ISCSI;
3259
3260         switch (info->cmd) {
3261         case CNIC_CTL_STOP_CMD:
3262                 cnic_hold(dev);
3263
3264                 cnic_ulp_stop(dev);
3265                 cnic_stop_hw(dev);
3266
3267                 cnic_put(dev);
3268                 break;
3269         case CNIC_CTL_START_CMD:
3270                 cnic_hold(dev);
3271
3272                 if (!cnic_start_hw(dev))
3273                         cnic_ulp_start(dev);
3274
3275                 cnic_put(dev);
3276                 break;
3277         case CNIC_CTL_STOP_ISCSI_CMD: {
3278                 struct cnic_local *cp = dev->cnic_priv;
3279                 set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags);
3280                 queue_delayed_work(cnic_wq, &cp->delete_task, 0);
3281                 break;
3282         }
3283         case CNIC_CTL_COMPLETION_CMD: {
3284                 struct cnic_ctl_completion *comp = &info->data.comp;
3285                 u32 cid = BNX2X_SW_CID(comp->cid);
3286                 u32 l5_cid;
3287                 struct cnic_local *cp = dev->cnic_priv;
3288
3289                 if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
3290                         break;
3291
3292                 if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
3293                         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3294
3295                         if (unlikely(comp->error)) {
3296                                 set_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags);
3297                                 netdev_err(dev->netdev,
3298                                            "CID %x CFC delete comp error %x\n",
3299                                            cid, comp->error);
3300                         }
3301
3302                         ctx->wait_cond = 1;
3303                         wake_up(&ctx->waitq);
3304                 }
3305                 break;
3306         }
3307         case CNIC_CTL_FCOE_STATS_GET_CMD:
3308                 ulp_type = CNIC_ULP_FCOE;
3309                 /* fall through */
3310         case CNIC_CTL_ISCSI_STATS_GET_CMD:
3311                 cnic_hold(dev);
3312                 cnic_copy_ulp_stats(dev, ulp_type);
3313                 cnic_put(dev);
3314                 break;
3315
3316         default:
3317                 return -EINVAL;
3318         }
3319         return 0;
3320 }
3321
3322 static void cnic_ulp_init(struct cnic_dev *dev)
3323 {
3324         int i;
3325         struct cnic_local *cp = dev->cnic_priv;
3326
3327         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3328                 struct cnic_ulp_ops *ulp_ops;
3329
3330                 mutex_lock(&cnic_lock);
3331                 ulp_ops = cnic_ulp_tbl_prot(i);
3332                 if (!ulp_ops || !ulp_ops->cnic_init) {
3333                         mutex_unlock(&cnic_lock);
3334                         continue;
3335                 }
3336                 ulp_get(ulp_ops);
3337                 mutex_unlock(&cnic_lock);
3338
3339                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3340                         ulp_ops->cnic_init(dev);
3341
3342                 ulp_put(ulp_ops);
3343         }
3344 }
3345
3346 static void cnic_ulp_exit(struct cnic_dev *dev)
3347 {
3348         int i;
3349         struct cnic_local *cp = dev->cnic_priv;
3350
3351         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3352                 struct cnic_ulp_ops *ulp_ops;
3353
3354                 mutex_lock(&cnic_lock);
3355                 ulp_ops = cnic_ulp_tbl_prot(i);
3356                 if (!ulp_ops || !ulp_ops->cnic_exit) {
3357                         mutex_unlock(&cnic_lock);
3358                         continue;
3359                 }
3360                 ulp_get(ulp_ops);
3361                 mutex_unlock(&cnic_lock);
3362
3363                 if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3364                         ulp_ops->cnic_exit(dev);
3365
3366                 ulp_put(ulp_ops);
3367         }
3368 }
3369
3370 static int cnic_cm_offload_pg(struct cnic_sock *csk)
3371 {
3372         struct cnic_dev *dev = csk->dev;
3373         struct l4_kwq_offload_pg *l4kwqe;
3374         struct kwqe *wqes[1];
3375
3376         l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
3377         memset(l4kwqe, 0, sizeof(*l4kwqe));
3378         wqes[0] = (struct kwqe *) l4kwqe;
3379
3380         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
3381         l4kwqe->flags =
3382                 L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
3383         l4kwqe->l2hdr_nbytes = ETH_HLEN;
3384
3385         l4kwqe->da0 = csk->ha[0];
3386         l4kwqe->da1 = csk->ha[1];
3387         l4kwqe->da2 = csk->ha[2];
3388         l4kwqe->da3 = csk->ha[3];
3389         l4kwqe->da4 = csk->ha[4];
3390         l4kwqe->da5 = csk->ha[5];
3391
3392         l4kwqe->sa0 = dev->mac_addr[0];
3393         l4kwqe->sa1 = dev->mac_addr[1];
3394         l4kwqe->sa2 = dev->mac_addr[2];
3395         l4kwqe->sa3 = dev->mac_addr[3];
3396         l4kwqe->sa4 = dev->mac_addr[4];
3397         l4kwqe->sa5 = dev->mac_addr[5];
3398
3399         l4kwqe->etype = ETH_P_IP;
3400         l4kwqe->ipid_start = DEF_IPID_START;
3401         l4kwqe->host_opaque = csk->l5_cid;
3402
3403         if (csk->vlan_id) {
3404                 l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
3405                 l4kwqe->vlan_tag = csk->vlan_id;
3406                 l4kwqe->l2hdr_nbytes += 4;
3407         }
3408
3409         return dev->submit_kwqes(dev, wqes, 1);
3410 }
3411
3412 static int cnic_cm_update_pg(struct cnic_sock *csk)
3413 {
3414         struct cnic_dev *dev = csk->dev;
3415         struct l4_kwq_update_pg *l4kwqe;
3416         struct kwqe *wqes[1];
3417
3418         l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
3419         memset(l4kwqe, 0, sizeof(*l4kwqe));
3420         wqes[0] = (struct kwqe *) l4kwqe;
3421
3422         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
3423         l4kwqe->flags =
3424                 L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
3425         l4kwqe->pg_cid = csk->pg_cid;
3426
3427         l4kwqe->da0 = csk->ha[0];
3428         l4kwqe->da1 = csk->ha[1];
3429         l4kwqe->da2 = csk->ha[2];
3430         l4kwqe->da3 = csk->ha[3];
3431         l4kwqe->da4 = csk->ha[4];
3432         l4kwqe->da5 = csk->ha[5];
3433
3434         l4kwqe->pg_host_opaque = csk->l5_cid;
3435         l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
3436
3437         return dev->submit_kwqes(dev, wqes, 1);
3438 }
3439
3440 static int cnic_cm_upload_pg(struct cnic_sock *csk)
3441 {
3442         struct cnic_dev *dev = csk->dev;
3443         struct l4_kwq_upload *l4kwqe;
3444         struct kwqe *wqes[1];
3445
3446         l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
3447         memset(l4kwqe, 0, sizeof(*l4kwqe));
3448         wqes[0] = (struct kwqe *) l4kwqe;
3449
3450         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
3451         l4kwqe->flags =
3452                 L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
3453         l4kwqe->cid = csk->pg_cid;
3454
3455         return dev->submit_kwqes(dev, wqes, 1);
3456 }
3457
3458 static int cnic_cm_conn_req(struct cnic_sock *csk)
3459 {
3460         struct cnic_dev *dev = csk->dev;
3461         struct l4_kwq_connect_req1 *l4kwqe1;
3462         struct l4_kwq_connect_req2 *l4kwqe2;
3463         struct l4_kwq_connect_req3 *l4kwqe3;
3464         struct kwqe *wqes[3];
3465         u8 tcp_flags = 0;
3466         int num_wqes = 2;
3467
3468         l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
3469         l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
3470         l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
3471         memset(l4kwqe1, 0, sizeof(*l4kwqe1));
3472         memset(l4kwqe2, 0, sizeof(*l4kwqe2));
3473         memset(l4kwqe3, 0, sizeof(*l4kwqe3));
3474
3475         l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
3476         l4kwqe3->flags =
3477                 L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
3478         l4kwqe3->ka_timeout = csk->ka_timeout;
3479         l4kwqe3->ka_interval = csk->ka_interval;
3480         l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
3481         l4kwqe3->tos = csk->tos;
3482         l4kwqe3->ttl = csk->ttl;
3483         l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
3484         l4kwqe3->pmtu = csk->mtu;
3485         l4kwqe3->rcv_buf = csk->rcv_buf;
3486         l4kwqe3->snd_buf = csk->snd_buf;
3487         l4kwqe3->seed = csk->seed;
3488
3489         wqes[0] = (struct kwqe *) l4kwqe1;
3490         if (test_bit(SK_F_IPV6, &csk->flags)) {
3491                 wqes[1] = (struct kwqe *) l4kwqe2;
3492                 wqes[2] = (struct kwqe *) l4kwqe3;
3493                 num_wqes = 3;
3494
3495                 l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
3496                 l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
3497                 l4kwqe2->flags =
3498                         L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
3499                         L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
3500                 l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
3501                 l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
3502                 l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
3503                 l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
3504                 l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
3505                 l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
3506                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
3507                                sizeof(struct tcphdr);
3508         } else {
3509                 wqes[1] = (struct kwqe *) l4kwqe3;
3510                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
3511                                sizeof(struct tcphdr);
3512         }
3513
3514         l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
3515         l4kwqe1->flags =
3516                 (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
3517                  L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
3518         l4kwqe1->cid = csk->cid;
3519         l4kwqe1->pg_cid = csk->pg_cid;
3520         l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
3521         l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
3522         l4kwqe1->src_port = be16_to_cpu(csk->src_port);
3523         l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
3524         if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
3525                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
3526         if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
3527                 tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
3528         if (csk->tcp_flags & SK_TCP_NAGLE)
3529                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
3530         if (csk->tcp_flags & SK_TCP_TIMESTAMP)
3531                 tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
3532         if (csk->tcp_flags & SK_TCP_SACK)
3533                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
3534         if (csk->tcp_flags & SK_TCP_SEG_SCALING)
3535                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
3536
3537         l4kwqe1->tcp_flags = tcp_flags;
3538
3539         return dev->submit_kwqes(dev, wqes, num_wqes);
3540 }
3541
3542 static int cnic_cm_close_req(struct cnic_sock *csk)
3543 {
3544         struct cnic_dev *dev = csk->dev;
3545         struct l4_kwq_close_req *l4kwqe;
3546         struct kwqe *wqes[1];
3547
3548         l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
3549         memset(l4kwqe, 0, sizeof(*l4kwqe));
3550         wqes[0] = (struct kwqe *) l4kwqe;
3551
3552         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
3553         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
3554         l4kwqe->cid = csk->cid;
3555
3556         return dev->submit_kwqes(dev, wqes, 1);
3557 }
3558
3559 static int cnic_cm_abort_req(struct cnic_sock *csk)
3560 {
3561         struct cnic_dev *dev = csk->dev;
3562         struct l4_kwq_reset_req *l4kwqe;
3563         struct kwqe *wqes[1];
3564
3565         l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
3566         memset(l4kwqe, 0, sizeof(*l4kwqe));
3567         wqes[0] = (struct kwqe *) l4kwqe;
3568
3569         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
3570         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
3571         l4kwqe->cid = csk->cid;
3572
3573         return dev->submit_kwqes(dev, wqes, 1);
3574 }
3575
3576 static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
3577                           u32 l5_cid, struct cnic_sock **csk, void *context)
3578 {
3579         struct cnic_local *cp = dev->cnic_priv;
3580         struct cnic_sock *csk1;
3581
3582         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3583                 return -EINVAL;
3584
3585         if (cp->ctx_tbl) {
3586                 struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3587
3588                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3589                         return -EAGAIN;
3590         }
3591
3592         csk1 = &cp->csk_tbl[l5_cid];
3593         if (atomic_read(&csk1->ref_count))
3594                 return -EAGAIN;
3595
3596         if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
3597                 return -EBUSY;
3598
3599         csk1->dev = dev;
3600         csk1->cid = cid;
3601         csk1->l5_cid = l5_cid;
3602         csk1->ulp_type = ulp_type;
3603         csk1->context = context;
3604
3605         csk1->ka_timeout = DEF_KA_TIMEOUT;
3606         csk1->ka_interval = DEF_KA_INTERVAL;
3607         csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
3608         csk1->tos = DEF_TOS;
3609         csk1->ttl = DEF_TTL;
3610         csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
3611         csk1->rcv_buf = DEF_RCV_BUF;
3612         csk1->snd_buf = DEF_SND_BUF;
3613         csk1->seed = DEF_SEED;
3614         csk1->tcp_flags = 0;
3615
3616         *csk = csk1;
3617         return 0;
3618 }
3619
3620 static void cnic_cm_cleanup(struct cnic_sock *csk)
3621 {
3622         if (csk->src_port) {
3623                 struct cnic_dev *dev = csk->dev;
3624                 struct cnic_local *cp = dev->cnic_priv;
3625
3626                 cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
3627                 csk->src_port = 0;
3628         }
3629 }
3630
3631 static void cnic_close_conn(struct cnic_sock *csk)
3632 {
3633         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
3634                 cnic_cm_upload_pg(csk);
3635                 clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3636         }
3637         cnic_cm_cleanup(csk);
3638 }
3639
3640 static int cnic_cm_destroy(struct cnic_sock *csk)
3641 {
3642         if (!cnic_in_use(csk))
3643                 return -EINVAL;
3644
3645         csk_hold(csk);
3646         clear_bit(SK_F_INUSE, &csk->flags);
3647         smp_mb__after_atomic();
3648         while (atomic_read(&csk->ref_count) != 1)
3649                 msleep(1);
3650         cnic_cm_cleanup(csk);
3651
3652         csk->flags = 0;
3653         csk_put(csk);
3654         return 0;
3655 }
3656
3657 static inline u16 cnic_get_vlan(struct net_device *dev,
3658                                 struct net_device **vlan_dev)
3659 {
3660         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3661                 *vlan_dev = vlan_dev_real_dev(dev);
3662                 return vlan_dev_vlan_id(dev);
3663         }
3664         *vlan_dev = dev;
3665         return 0;
3666 }
3667
3668 static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
3669                              struct dst_entry **dst)
3670 {
3671 #if defined(CONFIG_INET)
3672         struct rtable *rt;
3673
3674         rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
3675         if (!IS_ERR(rt)) {
3676                 *dst = &rt->dst;
3677                 return 0;
3678         }
3679         return PTR_ERR(rt);
3680 #else
3681         return -ENETUNREACH;
3682 #endif
3683 }
3684
3685 static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
3686                              struct dst_entry **dst)
3687 {
3688 #if IS_ENABLED(CONFIG_IPV6)
3689         struct flowi6 fl6;
3690
3691         memset(&fl6, 0, sizeof(fl6));
3692         fl6.daddr = dst_addr->sin6_addr;
3693         if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
3694                 fl6.flowi6_oif = dst_addr->sin6_scope_id;
3695
3696         *dst = ip6_route_output(&init_net, NULL, &fl6);
3697         if ((*dst)->error) {
3698                 dst_release(*dst);
3699                 *dst = NULL;
3700                 return -ENETUNREACH;
3701         } else
3702                 return 0;
3703 #endif
3704
3705         return -ENETUNREACH;
3706 }
3707
3708 static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
3709                                            int ulp_type)
3710 {
3711         struct cnic_dev *dev = NULL;
3712         struct dst_entry *dst;
3713         struct net_device *netdev = NULL;
3714         int err = -ENETUNREACH;
3715
3716         if (dst_addr->sin_family == AF_INET)
3717                 err = cnic_get_v4_route(dst_addr, &dst);
3718         else if (dst_addr->sin_family == AF_INET6) {
3719                 struct sockaddr_in6 *dst_addr6 =
3720                         (struct sockaddr_in6 *) dst_addr;
3721
3722                 err = cnic_get_v6_route(dst_addr6, &dst);
3723         } else
3724                 return NULL;
3725
3726         if (err)
3727                 return NULL;
3728
3729         if (!dst->dev)
3730                 goto done;
3731
3732         cnic_get_vlan(dst->dev, &netdev);
3733
3734         dev = cnic_from_netdev(netdev);
3735
3736 done:
3737         dst_release(dst);
3738         if (dev)
3739                 cnic_put(dev);
3740         return dev;
3741 }
3742
3743 static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3744 {
3745         struct cnic_dev *dev = csk->dev;
3746         struct cnic_local *cp = dev->cnic_priv;
3747
3748         return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
3749 }
3750
3751 static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3752 {
3753         struct cnic_dev *dev = csk->dev;
3754         struct cnic_local *cp = dev->cnic_priv;
3755         int is_v6, rc = 0;
3756         struct dst_entry *dst = NULL;
3757         struct net_device *realdev;
3758         __be16 local_port;
3759         u32 port_id;
3760
3761         if (saddr->local.v6.sin6_family == AF_INET6 &&
3762             saddr->remote.v6.sin6_family == AF_INET6)
3763                 is_v6 = 1;
3764         else if (saddr->local.v4.sin_family == AF_INET &&
3765                  saddr->remote.v4.sin_family == AF_INET)
3766                 is_v6 = 0;
3767         else
3768                 return -EINVAL;
3769
3770         clear_bit(SK_F_IPV6, &csk->flags);
3771
3772         if (is_v6) {
3773                 set_bit(SK_F_IPV6, &csk->flags);
3774                 cnic_get_v6_route(&saddr->remote.v6, &dst);
3775
3776                 memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
3777                        sizeof(struct in6_addr));
3778                 csk->dst_port = saddr->remote.v6.sin6_port;
3779                 local_port = saddr->local.v6.sin6_port;
3780
3781         } else {
3782                 cnic_get_v4_route(&saddr->remote.v4, &dst);
3783
3784                 csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
3785                 csk->dst_port = saddr->remote.v4.sin_port;
3786                 local_port = saddr->local.v4.sin_port;
3787         }
3788
3789         csk->vlan_id = 0;
3790         csk->mtu = dev->netdev->mtu;
3791         if (dst && dst->dev) {
3792                 u16 vlan = cnic_get_vlan(dst->dev, &realdev);
3793                 if (realdev == dev->netdev) {
3794                         csk->vlan_id = vlan;
3795                         csk->mtu = dst_mtu(dst);
3796                 }
3797         }
3798
3799         port_id = be16_to_cpu(local_port);
3800         if (port_id >= CNIC_LOCAL_PORT_MIN &&
3801             port_id < CNIC_LOCAL_PORT_MAX) {
3802                 if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
3803                         port_id = 0;
3804         } else
3805                 port_id = 0;
3806
3807         if (!port_id) {
3808                 port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
3809                 if (port_id == -1) {
3810                         rc = -ENOMEM;
3811                         goto err_out;
3812                 }
3813                 local_port = cpu_to_be16(port_id);
3814         }
3815         csk->src_port = local_port;
3816
3817 err_out:
3818         dst_release(dst);
3819         return rc;
3820 }
3821
3822 static void cnic_init_csk_state(struct cnic_sock *csk)
3823 {
3824         csk->state = 0;
3825         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3826         clear_bit(SK_F_CLOSING, &csk->flags);
3827 }
3828
3829 static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3830 {
3831         struct cnic_local *cp = csk->dev->cnic_priv;
3832         int err = 0;
3833
3834         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
3835                 return -EOPNOTSUPP;
3836
3837         if (!cnic_in_use(csk))
3838                 return -EINVAL;
3839
3840         if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
3841                 return -EINVAL;
3842
3843         cnic_init_csk_state(csk);
3844
3845         err = cnic_get_route(csk, saddr);
3846         if (err)
3847                 goto err_out;
3848
3849         err = cnic_resolve_addr(csk, saddr);
3850         if (!err)
3851                 return 0;
3852
3853 err_out:
3854         clear_bit(SK_F_CONNECT_START, &csk->flags);
3855         return err;
3856 }
3857
3858 static int cnic_cm_abort(struct cnic_sock *csk)
3859 {
3860         struct cnic_local *cp = csk->dev->cnic_priv;
3861         u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
3862
3863         if (!cnic_in_use(csk))
3864                 return -EINVAL;
3865
3866         if (cnic_abort_prep(csk))
3867                 return cnic_cm_abort_req(csk);
3868
3869         /* Getting here means that we haven't started connect, or
3870          * connect was not successful, or it has been reset by the target.
3871          */
3872
3873         cp->close_conn(csk, opcode);
3874         if (csk->state != opcode) {
3875                 /* Wait for remote reset sequence to complete */
3876                 while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3877                         msleep(1);
3878
3879                 return -EALREADY;
3880         }
3881
3882         return 0;
3883 }
3884
3885 static int cnic_cm_close(struct cnic_sock *csk)
3886 {
3887         if (!cnic_in_use(csk))
3888                 return -EINVAL;
3889
3890         if (cnic_close_prep(csk)) {
3891                 csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
3892                 return cnic_cm_close_req(csk);
3893         } else {
3894                 /* Wait for remote reset sequence to complete */
3895                 while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3896                         msleep(1);
3897
3898                 return -EALREADY;
3899         }
3900         return 0;
3901 }
3902
3903 static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
3904                            u8 opcode)
3905 {
3906         struct cnic_ulp_ops *ulp_ops;
3907         int ulp_type = csk->ulp_type;
3908
3909         rcu_read_lock();
3910         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
3911         if (ulp_ops) {
3912                 if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
3913                         ulp_ops->cm_connect_complete(csk);
3914                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3915                         ulp_ops->cm_close_complete(csk);
3916                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
3917                         ulp_ops->cm_remote_abort(csk);
3918                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
3919                         ulp_ops->cm_abort_complete(csk);
3920                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
3921                         ulp_ops->cm_remote_close(csk);
3922         }
3923         rcu_read_unlock();
3924 }
3925
3926 static int cnic_cm_set_pg(struct cnic_sock *csk)
3927 {
3928         if (cnic_offld_prep(csk)) {
3929                 if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3930                         cnic_cm_update_pg(csk);
3931                 else
3932                         cnic_cm_offload_pg(csk);
3933         }
3934         return 0;
3935 }
3936
3937 static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
3938 {
3939         struct cnic_local *cp = dev->cnic_priv;
3940         u32 l5_cid = kcqe->pg_host_opaque;
3941         u8 opcode = kcqe->op_code;
3942         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
3943
3944         csk_hold(csk);
3945         if (!cnic_in_use(csk))
3946                 goto done;
3947
3948         if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3949                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3950                 goto done;
3951         }
3952         /* Possible PG kcqe status:  SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
3953         if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
3954                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3955                 cnic_cm_upcall(cp, csk,
3956                                L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3957                 goto done;
3958         }
3959
3960         csk->pg_cid = kcqe->pg_cid;
3961         set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3962         cnic_cm_conn_req(csk);
3963
3964 done:
3965         csk_put(csk);
3966 }
3967
3968 static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
3969 {
3970         struct cnic_local *cp = dev->cnic_priv;
3971         struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
3972         u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
3973         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3974
3975         ctx->timestamp = jiffies;
3976         ctx->wait_cond = 1;
3977         wake_up(&ctx->waitq);
3978 }
3979
3980 static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
3981 {
3982         struct cnic_local *cp = dev->cnic_priv;
3983         struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
3984         u8 opcode = l4kcqe->op_code;
3985         u32 l5_cid;
3986         struct cnic_sock *csk;
3987
3988         if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
3989                 cnic_process_fcoe_term_conn(dev, kcqe);
3990                 return;
3991         }
3992         if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
3993             opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3994                 cnic_cm_process_offld_pg(dev, l4kcqe);
3995                 return;
3996         }
3997
3998         l5_cid = l4kcqe->conn_id;
3999         if (opcode & 0x80)
4000                 l5_cid = l4kcqe->cid;
4001         if (l5_cid >= MAX_CM_SK_TBL_SZ)
4002                 return;
4003
4004         csk = &cp->csk_tbl[l5_cid];
4005         csk_hold(csk);
4006
4007         if (!cnic_in_use(csk)) {
4008                 csk_put(csk);
4009                 return;
4010         }
4011
4012         switch (opcode) {
4013         case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
4014                 if (l4kcqe->status != 0) {
4015                         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
4016                         cnic_cm_upcall(cp, csk,
4017                                        L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
4018                 }
4019                 break;
4020         case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
4021                 if (l4kcqe->status == 0)
4022                         set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
4023                 else if (l4kcqe->status ==
4024                          L4_KCQE_COMPLETION_STATUS_PARITY_ERROR)
4025                         set_bit(SK_F_HW_ERR, &csk->flags);
4026
4027                 smp_mb__before_atomic();
4028                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
4029                 cnic_cm_upcall(cp, csk, opcode);
4030                 break;
4031
4032         case L5CM_RAMROD_CMD_ID_CLOSE: {
4033                 struct iscsi_kcqe *l5kcqe = (struct iscsi_kcqe *) kcqe;
4034
4035                 if (l4kcqe->status != 0 || l5kcqe->completion_status != 0) {
4036                         netdev_warn(dev->netdev, "RAMROD CLOSE compl with status 0x%x completion status 0x%x\n",
4037                                     l4kcqe->status, l5kcqe->completion_status);
4038                         opcode = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
4039                         /* Fall through */
4040                 } else {
4041                         break;
4042                 }
4043         }
4044         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
4045         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
4046         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
4047         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
4048         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
4049                 if (l4kcqe->status == L4_KCQE_COMPLETION_STATUS_PARITY_ERROR)
4050                         set_bit(SK_F_HW_ERR, &csk->flags);
4051
4052                 cp->close_conn(csk, opcode);
4053                 break;
4054
4055         case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
4056                 /* after we already sent CLOSE_REQ */
4057                 if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) &&
4058                     !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags) &&
4059                     csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
4060                         cp->close_conn(csk, L4_KCQE_OPCODE_VALUE_RESET_COMP);
4061                 else
4062                         cnic_cm_upcall(cp, csk, opcode);
4063                 break;
4064         }
4065         csk_put(csk);
4066 }
4067
4068 static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
4069 {
4070         struct cnic_dev *dev = data;
4071         int i;
4072
4073         for (i = 0; i < num; i++)
4074                 cnic_cm_process_kcqe(dev, kcqe[i]);
4075 }
4076
4077 static struct cnic_ulp_ops cm_ulp_ops = {
4078         .indicate_kcqes         = cnic_cm_indicate_kcqe,
4079 };
4080
4081 static void cnic_cm_free_mem(struct cnic_dev *dev)
4082 {
4083         struct cnic_local *cp = dev->cnic_priv;
4084
4085         kfree(cp->csk_tbl);
4086         cp->csk_tbl = NULL;
4087         cnic_free_id_tbl(&cp->csk_port_tbl);
4088 }
4089
4090 static int cnic_cm_alloc_mem(struct cnic_dev *dev)
4091 {
4092         struct cnic_local *cp = dev->cnic_priv;
4093         u32 port_id;
4094
4095         cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ,
4096                               GFP_KERNEL);
4097         if (!cp->csk_tbl)
4098                 return -ENOMEM;
4099
4100         port_id = prandom_u32();
4101         port_id %= CNIC_LOCAL_PORT_RANGE;
4102         if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
4103                              CNIC_LOCAL_PORT_MIN, port_id)) {
4104                 cnic_cm_free_mem(dev);
4105                 return -ENOMEM;
4106         }
4107         return 0;
4108 }
4109
4110 static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
4111 {
4112         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
4113                 /* Unsolicited RESET_COMP or RESET_RECEIVED */
4114                 opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
4115                 csk->state = opcode;
4116         }
4117
4118         /* 1. If event opcode matches the expected event in csk->state
4119          * 2. If the expected event is CLOSE_COMP or RESET_COMP, we accept any
4120          *    event
4121          * 3. If the expected event is 0, meaning the connection was never
4122          *    never established, we accept the opcode from cm_abort.
4123          */
4124         if (opcode == csk->state || csk->state == 0 ||
4125             csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP ||
4126             csk->state == L4_KCQE_OPCODE_VALUE_RESET_COMP) {
4127                 if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
4128                         if (csk->state == 0)
4129                                 csk->state = opcode;
4130                         return 1;
4131                 }
4132         }
4133         return 0;
4134 }
4135
4136 static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
4137 {
4138         struct cnic_dev *dev = csk->dev;
4139         struct cnic_local *cp = dev->cnic_priv;
4140
4141         if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
4142                 cnic_cm_upcall(cp, csk, opcode);
4143                 return;
4144         }
4145
4146         clear_bit(SK_F_CONNECT_START, &csk->flags);
4147         cnic_close_conn(csk);
4148         csk->state = opcode;
4149         cnic_cm_upcall(cp, csk, opcode);
4150 }
4151
4152 static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
4153 {
4154 }
4155
4156 static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
4157 {
4158         u32 seed;
4159
4160         seed = prandom_u32();
4161         cnic_ctx_wr(dev, 45, 0, seed);
4162         return 0;
4163 }
4164
4165 static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
4166 {
4167         struct cnic_dev *dev = csk->dev;
4168         struct cnic_local *cp = dev->cnic_priv;
4169         struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
4170         union l5cm_specific_data l5_data;
4171         u32 cmd = 0;
4172         int close_complete = 0;
4173
4174         switch (opcode) {
4175         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
4176         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
4177         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
4178                 if (cnic_ready_to_close(csk, opcode)) {
4179                         if (test_bit(SK_F_HW_ERR, &csk->flags))
4180                                 close_complete = 1;
4181                         else if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
4182                                 cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
4183                         else
4184                                 close_complete = 1;
4185                 }
4186                 break;
4187         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
4188                 cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
4189                 break;
4190         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
4191                 close_complete = 1;
4192                 break;
4193         }
4194         if (cmd) {
4195                 memset(&l5_data, 0, sizeof(l5_data));
4196
4197                 cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
4198                                     &l5_data);
4199         } else if (close_complete) {
4200                 ctx->timestamp = jiffies;
4201                 cnic_close_conn(csk);
4202                 cnic_cm_upcall(cp, csk, csk->state);
4203         }
4204 }
4205
4206 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
4207 {
4208         struct cnic_local *cp = dev->cnic_priv;
4209
4210         if (!cp->ctx_tbl)
4211                 return;
4212
4213         if (!netif_running(dev->netdev))
4214                 return;
4215
4216         cnic_bnx2x_delete_wait(dev, 0);
4217
4218         cancel_delayed_work(&cp->delete_task);
4219         flush_workqueue(cnic_wq);
4220
4221         if (atomic_read(&cp->iscsi_conn) != 0)
4222                 netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
4223                             atomic_read(&cp->iscsi_conn));
4224 }
4225
4226 static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
4227 {
4228         struct bnx2x *bp = netdev_priv(dev->netdev);
4229         u32 pfid = bp->pfid;
4230         u32 port = BP_PORT(bp);
4231
4232         cnic_init_bnx2x_mac(dev);
4233         cnic_bnx2x_set_tcp_options(dev, 0, 1);
4234
4235         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
4236                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
4237
4238         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4239                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
4240         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4241                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
4242                 DEF_MAX_DA_COUNT);
4243
4244         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4245                  XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
4246         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4247                  XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
4248         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4249                  XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
4250         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4251                 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
4252
4253         CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
4254                 DEF_MAX_CWND);
4255         return 0;
4256 }
4257
4258 static void cnic_delete_task(struct work_struct *work)
4259 {
4260         struct cnic_local *cp;
4261         struct cnic_dev *dev;
4262         u32 i;
4263         int need_resched = 0;
4264
4265         cp = container_of(work, struct cnic_local, delete_task.work);
4266         dev = cp->dev;
4267
4268         if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) {
4269                 struct drv_ctl_info info;
4270
4271                 cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI);
4272
4273                 info.cmd = DRV_CTL_ISCSI_STOPPED_CMD;
4274                 cp->ethdev->drv_ctl(dev->netdev, &info);
4275         }
4276
4277         for (i = 0; i < cp->max_cid_space; i++) {
4278                 struct cnic_context *ctx = &cp->ctx_tbl[i];
4279                 int err;
4280
4281                 if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
4282                     !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4283                         continue;
4284
4285                 if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
4286                         need_resched = 1;
4287                         continue;
4288                 }
4289
4290                 if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4291                         continue;
4292
4293                 err = cnic_bnx2x_destroy_ramrod(dev, i);
4294
4295                 cnic_free_bnx2x_conn_resc(dev, i);
4296                 if (!err) {
4297                         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
4298                                 atomic_dec(&cp->iscsi_conn);
4299
4300                         clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
4301                 }
4302         }
4303
4304         if (need_resched)
4305                 queue_delayed_work(cnic_wq, &cp->delete_task,
4306                                    msecs_to_jiffies(10));
4307
4308 }
4309
4310 static int cnic_cm_open(struct cnic_dev *dev)
4311 {
4312         struct cnic_local *cp = dev->cnic_priv;
4313         int err;
4314
4315         err = cnic_cm_alloc_mem(dev);
4316         if (err)
4317                 return err;
4318
4319         err = cp->start_cm(dev);
4320
4321         if (err)
4322                 goto err_out;
4323
4324         INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
4325
4326         dev->cm_create = cnic_cm_create;
4327         dev->cm_destroy = cnic_cm_destroy;
4328         dev->cm_connect = cnic_cm_connect;
4329         dev->cm_abort = cnic_cm_abort;
4330         dev->cm_close = cnic_cm_close;
4331         dev->cm_select_dev = cnic_cm_select_dev;
4332
4333         cp->ulp_handle[CNIC_ULP_L4] = dev;
4334         rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
4335         return 0;
4336
4337 err_out:
4338         cnic_cm_free_mem(dev);
4339         return err;
4340 }
4341
4342 static int cnic_cm_shutdown(struct cnic_dev *dev)
4343 {
4344         struct cnic_local *cp = dev->cnic_priv;
4345         int i;
4346
4347         if (!cp->csk_tbl)
4348                 return 0;
4349
4350         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
4351                 struct cnic_sock *csk = &cp->csk_tbl[i];
4352
4353                 clear_bit(SK_F_INUSE, &csk->flags);
4354                 cnic_cm_cleanup(csk);
4355         }
4356         cnic_cm_free_mem(dev);
4357
4358         return 0;
4359 }
4360
4361 static void cnic_init_context(struct cnic_dev *dev, u32 cid)
4362 {
4363         u32 cid_addr;
4364         int i;
4365
4366         cid_addr = GET_CID_ADDR(cid);
4367
4368         for (i = 0; i < CTX_SIZE; i += 4)
4369                 cnic_ctx_wr(dev, cid_addr, i, 0);
4370 }
4371
4372 static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
4373 {
4374         struct cnic_local *cp = dev->cnic_priv;
4375         int ret = 0, i;
4376         u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
4377
4378         if (BNX2_CHIP(cp) != BNX2_CHIP_5709)
4379                 return 0;
4380
4381         for (i = 0; i < cp->ctx_blks; i++) {
4382                 int j;
4383                 u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
4384                 u32 val;
4385
4386                 memset(cp->ctx_arr[i].ctx, 0, CNIC_PAGE_SIZE);
4387
4388                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
4389                         (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
4390                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
4391                         (u64) cp->ctx_arr[i].mapping >> 32);
4392                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
4393                         BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
4394                 for (j = 0; j < 10; j++) {
4395
4396                         val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
4397                         if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
4398                                 break;
4399                         udelay(5);
4400                 }
4401                 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
4402                         ret = -EBUSY;
4403                         break;
4404                 }
4405         }
4406         return ret;
4407 }
4408
4409 static void cnic_free_irq(struct cnic_dev *dev)
4410 {
4411         struct cnic_local *cp = dev->cnic_priv;
4412         struct cnic_eth_dev *ethdev = cp->ethdev;
4413
4414         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4415                 cp->disable_int_sync(dev);
4416                 tasklet_kill(&cp->cnic_irq_task);
4417                 free_irq(ethdev->irq_arr[0].vector, dev);
4418         }
4419 }
4420
4421 static int cnic_request_irq(struct cnic_dev *dev)
4422 {
4423         struct cnic_local *cp = dev->cnic_priv;
4424         struct cnic_eth_dev *ethdev = cp->ethdev;
4425         int err;
4426
4427         err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
4428         if (err)
4429                 tasklet_disable(&cp->cnic_irq_task);
4430
4431         return err;
4432 }
4433
4434 static int cnic_init_bnx2_irq(struct cnic_dev *dev)
4435 {
4436         struct cnic_local *cp = dev->cnic_priv;
4437         struct cnic_eth_dev *ethdev = cp->ethdev;
4438
4439         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4440                 int err, i = 0;
4441                 int sblk_num = cp->status_blk_num;
4442                 u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
4443                            BNX2_HC_SB_CONFIG_1;
4444
4445                 CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
4446
4447                 CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
4448                 CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
4449                 CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
4450
4451                 cp->last_status_idx = cp->status_blk.bnx2->status_idx;
4452                 tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix,
4453                              (unsigned long) dev);
4454                 err = cnic_request_irq(dev);
4455                 if (err)
4456                         return err;
4457
4458                 while (cp->status_blk.bnx2->status_completion_producer_index &&
4459                        i < 10) {
4460                         CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
4461                                 1 << (11 + sblk_num));
4462                         udelay(10);
4463                         i++;
4464                         barrier();
4465                 }
4466                 if (cp->status_blk.bnx2->status_completion_producer_index) {
4467                         cnic_free_irq(dev);
4468                         goto failed;
4469                 }
4470
4471         } else {
4472                 struct status_block *sblk = cp->status_blk.gen;
4473                 u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
4474                 int i = 0;
4475
4476                 while (sblk->status_completion_producer_index && i < 10) {
4477                         CNIC_WR(dev, BNX2_HC_COMMAND,
4478                                 hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
4479                         udelay(10);
4480                         i++;
4481                         barrier();
4482                 }
4483                 if (sblk->status_completion_producer_index)
4484                         goto failed;
4485
4486         }
4487         return 0;
4488
4489 failed:
4490         netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
4491         return -EBUSY;
4492 }
4493
4494 static void cnic_enable_bnx2_int(struct cnic_dev *dev)
4495 {
4496         struct cnic_local *cp = dev->cnic_priv;
4497         struct cnic_eth_dev *ethdev = cp->ethdev;
4498
4499         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4500                 return;
4501
4502         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4503                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
4504 }
4505
4506 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
4507 {
4508         struct cnic_local *cp = dev->cnic_priv;
4509         struct cnic_eth_dev *ethdev = cp->ethdev;
4510
4511         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4512                 return;
4513
4514         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4515                 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4516         CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
4517         synchronize_irq(ethdev->irq_arr[0].vector);
4518 }
4519
4520 static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
4521 {
4522         struct cnic_local *cp = dev->cnic_priv;
4523         struct cnic_eth_dev *ethdev = cp->ethdev;
4524         struct cnic_uio_dev *udev = cp->udev;
4525         u32 cid_addr, tx_cid, sb_id;
4526         u32 val, offset0, offset1, offset2, offset3;
4527         int i;
4528         struct bnx2_tx_bd *txbd;
4529         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4530         struct status_block *s_blk = cp->status_blk.gen;
4531
4532         sb_id = cp->status_blk_num;
4533         tx_cid = 20;
4534         cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
4535         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4536                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4537
4538                 tx_cid = TX_TSS_CID + sb_id - 1;
4539                 CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
4540                         (TX_TSS_CID << 7));
4541                 cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
4542         }
4543         cp->tx_cons = *cp->tx_cons_ptr;
4544
4545         cid_addr = GET_CID_ADDR(tx_cid);
4546         if (BNX2_CHIP(cp) == BNX2_CHIP_5709) {
4547                 u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
4548
4549                 for (i = 0; i < PHY_CTX_SIZE; i += 4)
4550                         cnic_ctx_wr(dev, cid_addr2, i, 0);
4551
4552                 offset0 = BNX2_L2CTX_TYPE_XI;
4553                 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
4554                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
4555                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
4556         } else {
4557                 cnic_init_context(dev, tx_cid);
4558                 cnic_init_context(dev, tx_cid + 1);
4559
4560                 offset0 = BNX2_L2CTX_TYPE;
4561                 offset1 = BNX2_L2CTX_CMD_TYPE;
4562                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
4563                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
4564         }
4565         val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
4566         cnic_ctx_wr(dev, cid_addr, offset0, val);
4567
4568         val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
4569         cnic_ctx_wr(dev, cid_addr, offset1, val);
4570
4571         txbd = udev->l2_ring;
4572
4573         buf_map = udev->l2_buf_map;
4574         for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i++, txbd++) {
4575                 txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
4576                 txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4577         }
4578         val = (u64) ring_map >> 32;
4579         cnic_ctx_wr(dev, cid_addr, offset2, val);
4580         txbd->tx_bd_haddr_hi = val;
4581
4582         val = (u64) ring_map & 0xffffffff;
4583         cnic_ctx_wr(dev, cid_addr, offset3, val);
4584         txbd->tx_bd_haddr_lo = val;
4585 }
4586
4587 static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
4588 {
4589         struct cnic_local *cp = dev->cnic_priv;
4590         struct cnic_eth_dev *ethdev = cp->ethdev;
4591         struct cnic_uio_dev *udev = cp->udev;
4592         u32 cid_addr, sb_id, val, coal_reg, coal_val;
4593         int i;
4594         struct bnx2_rx_bd *rxbd;
4595         struct status_block *s_blk = cp->status_blk.gen;
4596         dma_addr_t ring_map = udev->l2_ring_map;
4597
4598         sb_id = cp->status_blk_num;
4599         cnic_init_context(dev, 2);
4600         cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
4601         coal_reg = BNX2_HC_COMMAND;
4602         coal_val = CNIC_RD(dev, coal_reg);
4603         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4604                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4605
4606                 cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
4607                 coal_reg = BNX2_HC_COALESCE_NOW;
4608                 coal_val = 1 << (11 + sb_id);
4609         }
4610         i = 0;
4611         while (!(*cp->rx_cons_ptr != 0) && i < 10) {
4612                 CNIC_WR(dev, coal_reg, coal_val);
4613                 udelay(10);
4614                 i++;
4615                 barrier();
4616         }
4617         cp->rx_cons = *cp->rx_cons_ptr;
4618
4619         cid_addr = GET_CID_ADDR(2);
4620         val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4621               BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4622         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
4623
4624         if (sb_id == 0)
4625                 val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
4626         else
4627                 val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
4628         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
4629
4630         rxbd = udev->l2_ring + CNIC_PAGE_SIZE;
4631         for (i = 0; i < BNX2_MAX_RX_DESC_CNT; i++, rxbd++) {
4632                 dma_addr_t buf_map;
4633                 int n = (i % cp->l2_rx_ring_size) + 1;
4634
4635                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4636                 rxbd->rx_bd_len = cp->l2_single_buf_size;
4637                 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
4638                 rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
4639                 rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4640         }
4641         val = (u64) (ring_map + CNIC_PAGE_SIZE) >> 32;
4642         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
4643         rxbd->rx_bd_haddr_hi = val;
4644
4645         val = (u64) (ring_map + CNIC_PAGE_SIZE) & 0xffffffff;
4646         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
4647         rxbd->rx_bd_haddr_lo = val;
4648
4649         val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
4650         cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
4651 }
4652
4653 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
4654 {
4655         struct kwqe *wqes[1], l2kwqe;
4656
4657         memset(&l2kwqe, 0, sizeof(l2kwqe));
4658         wqes[0] = &l2kwqe;
4659         l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
4660                               (L2_KWQE_OPCODE_VALUE_FLUSH <<
4661                                KWQE_OPCODE_SHIFT) | 2;
4662         dev->submit_kwqes(dev, wqes, 1);
4663 }
4664
4665 static void cnic_set_bnx2_mac(struct cnic_dev *dev)
4666 {
4667         struct cnic_local *cp = dev->cnic_priv;
4668         u32 val;
4669
4670         val = cp->func << 2;
4671
4672         cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
4673
4674         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4675                               BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
4676         dev->mac_addr[0] = (u8) (val >> 8);
4677         dev->mac_addr[1] = (u8) val;
4678
4679         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
4680
4681         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4682                               BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
4683         dev->mac_addr[2] = (u8) (val >> 24);
4684         dev->mac_addr[3] = (u8) (val >> 16);
4685         dev->mac_addr[4] = (u8) (val >> 8);
4686         dev->mac_addr[5] = (u8) val;
4687
4688         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
4689
4690         val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
4691         if (BNX2_CHIP(cp) != BNX2_CHIP_5709)
4692                 val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
4693
4694         CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
4695         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
4696         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
4697 }
4698
4699 static int cnic_start_bnx2_hw(struct cnic_dev *dev)
4700 {
4701         struct cnic_local *cp = dev->cnic_priv;
4702         struct cnic_eth_dev *ethdev = cp->ethdev;
4703         struct status_block *sblk = cp->status_blk.gen;
4704         u32 val, kcq_cid_addr, kwq_cid_addr;
4705         int err;
4706
4707         cnic_set_bnx2_mac(dev);
4708
4709         val = CNIC_RD(dev, BNX2_MQ_CONFIG);
4710         val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4711         if (CNIC_PAGE_BITS > 12)
4712                 val |= (12 - 8)  << 4;
4713         else
4714                 val |= (CNIC_PAGE_BITS - 8)  << 4;
4715
4716         CNIC_WR(dev, BNX2_MQ_CONFIG, val);
4717
4718         CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
4719         CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
4720         CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
4721
4722         err = cnic_setup_5709_context(dev, 1);
4723         if (err)
4724                 return err;
4725
4726         cnic_init_context(dev, KWQ_CID);
4727         cnic_init_context(dev, KCQ_CID);
4728
4729         kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
4730         cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
4731
4732         cp->max_kwq_idx = MAX_KWQ_IDX;
4733         cp->kwq_prod_idx = 0;
4734         cp->kwq_con_idx = 0;
4735         set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
4736
4737         if (BNX2_CHIP(cp) == BNX2_CHIP_5706 || BNX2_CHIP(cp) == BNX2_CHIP_5708)
4738                 cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
4739         else
4740                 cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
4741
4742         /* Initialize the kernel work queue context. */
4743         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4744               (CNIC_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4745         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
4746
4747         val = (CNIC_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
4748         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4749
4750         val = ((CNIC_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
4751         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4752
4753         val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
4754         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4755
4756         val = (u32) cp->kwq_info.pgtbl_map;
4757         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4758
4759         kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
4760         cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
4761
4762         cp->kcq1.sw_prod_idx = 0;
4763         cp->kcq1.hw_prod_idx_ptr =
4764                 &sblk->status_completion_producer_index;
4765
4766         cp->kcq1.status_idx_ptr = &sblk->status_idx;
4767
4768         /* Initialize the kernel complete queue context. */
4769         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4770               (CNIC_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4771         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
4772
4773         val = (CNIC_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
4774         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4775
4776         val = ((CNIC_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
4777         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4778
4779         val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
4780         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4781
4782         val = (u32) cp->kcq1.dma.pgtbl_map;
4783         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4784
4785         cp->int_num = 0;
4786         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4787                 struct status_block_msix *msblk = cp->status_blk.bnx2;
4788                 u32 sb_id = cp->status_blk_num;
4789                 u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
4790
4791                 cp->kcq1.hw_prod_idx_ptr =
4792                         &msblk->status_completion_producer_index;
4793                 cp->kcq1.status_idx_ptr = &msblk->status_idx;
4794                 cp->kwq_con_idx_ptr = &msblk->status_cmd_consumer_index;
4795                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
4796                 cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4797                 cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4798         }
4799
4800         /* Enable Commnad Scheduler notification when we write to the
4801          * host producer index of the kernel contexts. */
4802         CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
4803
4804         /* Enable Command Scheduler notification when we write to either
4805          * the Send Queue or Receive Queue producer indexes of the kernel
4806          * bypass contexts. */
4807         CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
4808         CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
4809
4810         /* Notify COM when the driver post an application buffer. */
4811         CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
4812
4813         /* Set the CP and COM doorbells.  These two processors polls the
4814          * doorbell for a non zero value before running.  This must be done
4815          * after setting up the kernel queue contexts. */
4816         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
4817         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
4818
4819         cnic_init_bnx2_tx_ring(dev);
4820         cnic_init_bnx2_rx_ring(dev);
4821
4822         err = cnic_init_bnx2_irq(dev);
4823         if (err) {
4824                 netdev_err(dev->netdev, "cnic_init_irq failed\n");
4825                 cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
4826                 cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
4827                 return err;
4828         }
4829
4830         ethdev->drv_state |= CNIC_DRV_STATE_HANDLES_IRQ;
4831
4832         return 0;
4833 }
4834
4835 static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
4836 {
4837         struct cnic_local *cp = dev->cnic_priv;
4838         struct cnic_eth_dev *ethdev = cp->ethdev;
4839         u32 start_offset = ethdev->ctx_tbl_offset;
4840         int i;
4841
4842         for (i = 0; i < cp->ctx_blks; i++) {
4843                 struct cnic_ctx *ctx = &cp->ctx_arr[i];
4844                 dma_addr_t map = ctx->mapping;
4845
4846                 if (cp->ctx_align) {
4847                         unsigned long mask = cp->ctx_align - 1;
4848
4849                         map = (map + mask) & ~mask;
4850                 }
4851
4852                 cnic_ctx_tbl_wr(dev, start_offset + i, map);
4853         }
4854 }
4855
4856 static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
4857 {
4858         struct cnic_local *cp = dev->cnic_priv;
4859         struct cnic_eth_dev *ethdev = cp->ethdev;
4860         int err = 0;
4861
4862         tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh,
4863                      (unsigned long) dev);
4864         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
4865                 err = cnic_request_irq(dev);
4866
4867         return err;
4868 }
4869
4870 static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
4871                                                 u16 sb_id, u8 sb_index,
4872                                                 u8 disable)
4873 {
4874         struct bnx2x *bp = netdev_priv(dev->netdev);
4875
4876         u32 addr = BAR_CSTRORM_INTMEM +
4877                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4878                         offsetof(struct hc_status_block_data_e1x, index_data) +
4879                         sizeof(struct hc_index_data)*sb_index +
4880                         offsetof(struct hc_index_data, flags);
4881         u16 flags = CNIC_RD16(dev, addr);
4882         /* clear and set */
4883         flags &= ~HC_INDEX_DATA_HC_ENABLED;
4884         flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
4885                   HC_INDEX_DATA_HC_ENABLED);
4886         CNIC_WR16(dev, addr, flags);
4887 }
4888
4889 static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
4890 {
4891         struct cnic_local *cp = dev->cnic_priv;
4892         struct bnx2x *bp = netdev_priv(dev->netdev);
4893         u8 sb_id = cp->status_blk_num;
4894
4895         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4896                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4897                         offsetof(struct hc_status_block_data_e1x, index_data) +
4898                         sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
4899                         offsetof(struct hc_index_data, timeout), 64 / 4);
4900         cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
4901 }
4902
4903 static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
4904 {
4905 }
4906
4907 static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
4908                                     struct client_init_ramrod_data *data)
4909 {
4910         struct cnic_local *cp = dev->cnic_priv;
4911         struct bnx2x *bp = netdev_priv(dev->netdev);
4912         struct cnic_uio_dev *udev = cp->udev;
4913         union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
4914         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4915         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4916         int i;
4917         u32 cli = cp->ethdev->iscsi_l2_client_id;
4918         u32 val;
4919
4920         memset(txbd, 0, CNIC_PAGE_SIZE);
4921
4922         buf_map = udev->l2_buf_map;
4923         for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i += 3, txbd += 3) {
4924                 struct eth_tx_start_bd *start_bd = &txbd->start_bd;
4925                 struct eth_tx_parse_bd_e1x *pbd_e1x =
4926                         &((txbd + 1)->parse_bd_e1x);
4927                 struct eth_tx_parse_bd_e2 *pbd_e2 = &((txbd + 1)->parse_bd_e2);
4928                 struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
4929
4930                 start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4931                 start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4932                 reg_bd->addr_hi = start_bd->addr_hi;
4933                 reg_bd->addr_lo = start_bd->addr_lo + 0x10;
4934                 start_bd->nbytes = cpu_to_le16(0x10);
4935                 start_bd->nbd = cpu_to_le16(3);
4936                 start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
4937                 start_bd->general_data &= ~ETH_TX_START_BD_PARSE_NBDS;
4938                 start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
4939
4940                 if (BNX2X_CHIP_IS_E2_PLUS(bp))
4941                         pbd_e2->parsing_data = (UNICAST_ADDRESS <<
4942                                 ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE_SHIFT);
4943                 else
4944                         pbd_e1x->global_data = (UNICAST_ADDRESS <<
4945                                 ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE_SHIFT);
4946         }
4947
4948         val = (u64) ring_map >> 32;
4949         txbd->next_bd.addr_hi = cpu_to_le32(val);
4950
4951         data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
4952
4953         val = (u64) ring_map & 0xffffffff;
4954         txbd->next_bd.addr_lo = cpu_to_le32(val);
4955
4956         data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
4957
4958         /* Other ramrod params */
4959         data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
4960         data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
4961
4962         /* reset xstorm per client statistics */
4963         if (cli < MAX_STAT_COUNTER_ID) {
4964                 data->general.statistics_zero_flg = 1;
4965                 data->general.statistics_en_flg = 1;
4966                 data->general.statistics_counter_id = cli;
4967         }
4968
4969         cp->tx_cons_ptr =
4970                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
4971 }
4972
4973 static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
4974                                     struct client_init_ramrod_data *data)
4975 {
4976         struct cnic_local *cp = dev->cnic_priv;
4977         struct bnx2x *bp = netdev_priv(dev->netdev);
4978         struct cnic_uio_dev *udev = cp->udev;
4979         struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
4980                                 CNIC_PAGE_SIZE);
4981         struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
4982                                 (udev->l2_ring + (2 * CNIC_PAGE_SIZE));
4983         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4984         int i;
4985         u32 cli = cp->ethdev->iscsi_l2_client_id;
4986         int cl_qzone_id = BNX2X_CL_QZONE_ID(bp, cli);
4987         u32 val;
4988         dma_addr_t ring_map = udev->l2_ring_map;
4989
4990         /* General data */
4991         data->general.client_id = cli;
4992         data->general.activate_flg = 1;
4993         data->general.sp_client_id = cli;
4994         data->general.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
4995         data->general.func_id = bp->pfid;
4996
4997         for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
4998                 dma_addr_t buf_map;
4999                 int n = (i % cp->l2_rx_ring_size) + 1;
5000
5001                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
5002                 rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
5003                 rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
5004         }
5005
5006         val = (u64) (ring_map + CNIC_PAGE_SIZE) >> 32;
5007         rxbd->addr_hi = cpu_to_le32(val);
5008         data->rx.bd_page_base.hi = cpu_to_le32(val);
5009
5010         val = (u64) (ring_map + CNIC_PAGE_SIZE) & 0xffffffff;
5011         rxbd->addr_lo = cpu_to_le32(val);
5012         data->rx.bd_page_base.lo = cpu_to_le32(val);
5013
5014         rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
5015         val = (u64) (ring_map + (2 * CNIC_PAGE_SIZE)) >> 32;
5016         rxcqe->addr_hi = cpu_to_le32(val);
5017         data->rx.cqe_page_base.hi = cpu_to_le32(val);
5018
5019         val = (u64) (ring_map + (2 * CNIC_PAGE_SIZE)) & 0xffffffff;
5020         rxcqe->addr_lo = cpu_to_le32(val);
5021         data->rx.cqe_page_base.lo = cpu_to_le32(val);
5022
5023         /* Other ramrod params */
5024         data->rx.client_qzone_id = cl_qzone_id;
5025         data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
5026         data->rx.status_block_id = BNX2X_DEF_SB_ID;
5027
5028         data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
5029
5030         data->rx.max_bytes_on_bd = cpu_to_le16(cp->l2_single_buf_size);
5031         data->rx.outer_vlan_removal_enable_flg = 1;
5032         data->rx.silent_vlan_removal_flg = 1;
5033         data->rx.silent_vlan_value = 0;
5034         data->rx.silent_vlan_mask = 0xffff;
5035
5036         cp->rx_cons_ptr =
5037                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
5038         cp->rx_cons = *cp->rx_cons_ptr;
5039 }
5040
5041 static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
5042 {
5043         struct cnic_local *cp = dev->cnic_priv;
5044         struct bnx2x *bp = netdev_priv(dev->netdev);
5045         u32 pfid = bp->pfid;
5046
5047         cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
5048                            CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
5049         cp->kcq1.sw_prod_idx = 0;
5050
5051         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5052                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
5053
5054                 cp->kcq1.hw_prod_idx_ptr =
5055                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
5056                 cp->kcq1.status_idx_ptr =
5057                         &sb->sb.running_index[SM_RX_ID];
5058         } else {
5059                 struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
5060
5061                 cp->kcq1.hw_prod_idx_ptr =
5062                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
5063                 cp->kcq1.status_idx_ptr =
5064                         &sb->sb.running_index[SM_RX_ID];
5065         }
5066
5067         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5068                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
5069
5070                 cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
5071                                         USTORM_FCOE_EQ_PROD_OFFSET(pfid);
5072                 cp->kcq2.sw_prod_idx = 0;
5073                 cp->kcq2.hw_prod_idx_ptr =
5074                         &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
5075                 cp->kcq2.status_idx_ptr =
5076                         &sb->sb.running_index[SM_RX_ID];
5077         }
5078 }
5079
5080 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
5081 {
5082         struct cnic_local *cp = dev->cnic_priv;
5083         struct bnx2x *bp = netdev_priv(dev->netdev);
5084         struct cnic_eth_dev *ethdev = cp->ethdev;
5085         int func, ret;
5086         u32 pfid;
5087
5088         dev->stats_addr = ethdev->addr_drv_info_to_mcp;
5089         cp->func = bp->pf_num;
5090
5091         func = CNIC_FUNC(cp);
5092         pfid = bp->pfid;
5093
5094         ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
5095                                cp->iscsi_start_cid, 0);
5096
5097         if (ret)
5098                 return -ENOMEM;
5099
5100         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5101                 ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl, dev->max_fcoe_conn,
5102                                         cp->fcoe_start_cid, 0);
5103
5104                 if (ret)
5105                         return -ENOMEM;
5106         }
5107
5108         cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
5109
5110         cnic_init_bnx2x_kcq(dev);
5111
5112         /* Only 1 EQ */
5113         CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
5114         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5115                 CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
5116         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5117                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
5118                 cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
5119         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5120                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
5121                 (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
5122         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5123                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
5124                 cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
5125         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5126                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
5127                 (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
5128         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
5129                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
5130         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
5131                 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
5132         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
5133                 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
5134                 HC_INDEX_ISCSI_EQ_CONS);
5135
5136         CNIC_WR(dev, BAR_USTRORM_INTMEM +
5137                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
5138                 cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
5139         CNIC_WR(dev, BAR_USTRORM_INTMEM +
5140                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
5141                 (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
5142
5143         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
5144                 TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
5145
5146         cnic_setup_bnx2x_context(dev);
5147
5148         ret = cnic_init_bnx2x_irq(dev);
5149         if (ret)
5150                 return ret;
5151
5152         ethdev->drv_state |= CNIC_DRV_STATE_HANDLES_IRQ;
5153         return 0;
5154 }
5155
5156 static void cnic_init_rings(struct cnic_dev *dev)
5157 {
5158         struct cnic_local *cp = dev->cnic_priv;
5159         struct bnx2x *bp = netdev_priv(dev->netdev);
5160         struct cnic_uio_dev *udev = cp->udev;
5161
5162         if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
5163                 return;
5164
5165         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
5166                 cnic_init_bnx2_tx_ring(dev);
5167                 cnic_init_bnx2_rx_ring(dev);
5168                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5169         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
5170                 u32 cli = cp->ethdev->iscsi_l2_client_id;
5171                 u32 cid = cp->ethdev->iscsi_l2_cid;
5172                 u32 cl_qzone_id;
5173                 struct client_init_ramrod_data *data;
5174                 union l5cm_specific_data l5_data;
5175                 struct ustorm_eth_rx_producers rx_prods = {0};
5176                 u32 off, i, *cid_ptr;
5177
5178                 rx_prods.bd_prod = 0;
5179                 rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
5180                 barrier();
5181
5182                 cl_qzone_id = BNX2X_CL_QZONE_ID(bp, cli);
5183
5184                 off = BAR_USTRORM_INTMEM +
5185                         (BNX2X_CHIP_IS_E2_PLUS(bp) ?
5186                          USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
5187                          USTORM_RX_PRODS_E1X_OFFSET(BP_PORT(bp), cli));
5188
5189                 for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
5190                         CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
5191
5192                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
5193
5194                 data = udev->l2_buf;
5195                 cid_ptr = udev->l2_buf + 12;
5196
5197                 memset(data, 0, sizeof(*data));
5198
5199                 cnic_init_bnx2x_tx_ring(dev, data);
5200                 cnic_init_bnx2x_rx_ring(dev, data);
5201
5202                 l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
5203                 l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
5204
5205                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5206
5207                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
5208                         cid, ETH_CONNECTION_TYPE, &l5_data);
5209
5210                 i = 0;
5211                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
5212                        ++i < 10)
5213                         msleep(1);
5214
5215                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
5216                         netdev_err(dev->netdev,
5217                                 "iSCSI CLIENT_SETUP did not complete\n");
5218                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5219                 cnic_ring_ctl(dev, cid, cli, 1);
5220                 *cid_ptr = cid >> 4;
5221                 *(cid_ptr + 1) = cid * bp->db_size;
5222                 *(cid_ptr + 2) = UIO_USE_TX_DOORBELL;
5223         }
5224 }
5225
5226 static void cnic_shutdown_rings(struct cnic_dev *dev)
5227 {
5228         struct cnic_local *cp = dev->cnic_priv;
5229         struct cnic_uio_dev *udev = cp->udev;
5230         void *rx_ring;
5231
5232         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
5233                 return;
5234
5235         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
5236                 cnic_shutdown_bnx2_rx_ring(dev);
5237         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
5238                 u32 cli = cp->ethdev->iscsi_l2_client_id;
5239                 u32 cid = cp->ethdev->iscsi_l2_cid;
5240                 union l5cm_specific_data l5_data;
5241                 int i;
5242
5243                 cnic_ring_ctl(dev, cid, cli, 0);
5244
5245                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
5246
5247                 l5_data.phy_address.lo = cli;
5248                 l5_data.phy_address.hi = 0;
5249                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
5250                         cid, ETH_CONNECTION_TYPE, &l5_data);
5251                 i = 0;
5252                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
5253                        ++i < 10)
5254                         msleep(1);
5255
5256                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
5257                         netdev_err(dev->netdev,
5258                                 "iSCSI CLIENT_HALT did not complete\n");
5259                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5260
5261                 memset(&l5_data, 0, sizeof(l5_data));
5262                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
5263                         cid, NONE_CONNECTION_TYPE, &l5_data);
5264                 msleep(10);
5265         }
5266         clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5267         rx_ring = udev->l2_ring + CNIC_PAGE_SIZE;
5268         memset(rx_ring, 0, CNIC_PAGE_SIZE);
5269 }
5270
5271 static int cnic_register_netdev(struct cnic_dev *dev)
5272 {
5273         struct cnic_local *cp = dev->cnic_priv;
5274         struct cnic_eth_dev *ethdev = cp->ethdev;
5275         int err;
5276
5277         if (!ethdev)
5278                 return -ENODEV;
5279
5280         if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
5281                 return 0;
5282
5283         err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
5284         if (err)
5285                 netdev_err(dev->netdev, "register_cnic failed\n");
5286
5287         /* Read iSCSI config again.  On some bnx2x device, iSCSI config
5288          * can change after firmware is downloaded.
5289          */
5290         dev->max_iscsi_conn = ethdev->max_iscsi_conn;
5291         if (ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
5292                 dev->max_iscsi_conn = 0;
5293
5294         return err;
5295 }
5296
5297 static void cnic_unregister_netdev(struct cnic_dev *dev)
5298 {
5299         struct cnic_local *cp = dev->cnic_priv;
5300         struct cnic_eth_dev *ethdev = cp->ethdev;
5301
5302         if (!ethdev)
5303                 return;
5304
5305         ethdev->drv_unregister_cnic(dev->netdev);
5306 }
5307
5308 static int cnic_start_hw(struct cnic_dev *dev)
5309 {
5310         struct cnic_local *cp = dev->cnic_priv;
5311         struct cnic_eth_dev *ethdev = cp->ethdev;
5312         int err;
5313
5314         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
5315                 return -EALREADY;
5316
5317         dev->regview = ethdev->io_base;
5318         pci_dev_get(dev->pcidev);
5319         cp->func = PCI_FUNC(dev->pcidev->devfn);
5320         cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
5321         cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
5322
5323         err = cp->alloc_resc(dev);
5324         if (err) {
5325                 netdev_err(dev->netdev, "allocate resource failure\n");
5326                 goto err1;
5327         }
5328
5329         err = cp->start_hw(dev);
5330         if (err)
5331                 goto err1;
5332
5333         err = cnic_cm_open(dev);
5334         if (err)
5335                 goto err1;
5336
5337         set_bit(CNIC_F_CNIC_UP, &dev->flags);
5338
5339         cp->enable_int(dev);
5340
5341         return 0;
5342
5343 err1:
5344         cp->free_resc(dev);
5345         pci_dev_put(dev->pcidev);
5346         return err;
5347 }
5348
5349 static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
5350 {
5351         cnic_disable_bnx2_int_sync(dev);
5352
5353         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
5354         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
5355
5356         cnic_init_context(dev, KWQ_CID);
5357         cnic_init_context(dev, KCQ_CID);
5358
5359         cnic_setup_5709_context(dev, 0);
5360         cnic_free_irq(dev);
5361
5362         cnic_free_resc(dev);
5363 }
5364
5365
5366 static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
5367 {
5368         struct cnic_local *cp = dev->cnic_priv;
5369         struct bnx2x *bp = netdev_priv(dev->netdev);
5370         u32 hc_index = HC_INDEX_ISCSI_EQ_CONS;
5371         u32 sb_id = cp->status_blk_num;
5372         u32 idx_off, syn_off;
5373
5374         cnic_free_irq(dev);
5375
5376         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5377                 idx_off = offsetof(struct hc_status_block_e2, index_values) +
5378                           (hc_index * sizeof(u16));
5379
5380                 syn_off = CSTORM_HC_SYNC_LINE_INDEX_E2_OFFSET(hc_index, sb_id);
5381         } else {
5382                 idx_off = offsetof(struct hc_status_block_e1x, index_values) +
5383                           (hc_index * sizeof(u16));
5384
5385                 syn_off = CSTORM_HC_SYNC_LINE_INDEX_E1X_OFFSET(hc_index, sb_id);
5386         }
5387         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + syn_off, 0);
5388         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_STATUS_BLOCK_OFFSET(sb_id) +
5389                   idx_off, 0);
5390
5391         *cp->kcq1.hw_prod_idx_ptr = 0;
5392         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5393                 CSTORM_ISCSI_EQ_CONS_OFFSET(bp->pfid, 0), 0);
5394         CNIC_WR16(dev, cp->kcq1.io_addr, 0);
5395         cnic_free_resc(dev);
5396 }
5397
5398 static void cnic_stop_hw(struct cnic_dev *dev)
5399 {
5400         if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5401                 struct cnic_local *cp = dev->cnic_priv;
5402                 int i = 0;
5403
5404                 /* Need to wait for the ring shutdown event to complete
5405                  * before clearing the CNIC_UP flag.
5406                  */
5407                 while (cp->udev && cp->udev->uio_dev != -1 && i < 15) {
5408                         msleep(100);
5409                         i++;
5410                 }
5411                 cnic_shutdown_rings(dev);
5412                 cp->stop_cm(dev);
5413                 cp->ethdev->drv_state &= ~CNIC_DRV_STATE_HANDLES_IRQ;
5414                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
5415                 RCU_INIT_POINTER(cp->ulp_ops[CNIC_ULP_L4], NULL);
5416                 synchronize_rcu();
5417                 cnic_cm_shutdown(dev);
5418                 cp->stop_hw(dev);
5419                 pci_dev_put(dev->pcidev);
5420         }
5421 }
5422
5423 static void cnic_free_dev(struct cnic_dev *dev)
5424 {
5425         int i = 0;
5426
5427         while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
5428                 msleep(100);
5429                 i++;
5430         }
5431         if (atomic_read(&dev->ref_count) != 0)
5432                 netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
5433
5434         netdev_info(dev->netdev, "Removed CNIC device\n");
5435         dev_put(dev->netdev);
5436         kfree(dev);
5437 }
5438
5439 static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
5440                                        struct pci_dev *pdev)
5441 {
5442         struct cnic_dev *cdev;
5443         struct cnic_local *cp;
5444         int alloc_size;
5445
5446         alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
5447
5448         cdev = kzalloc(alloc_size, GFP_KERNEL);
5449         if (cdev == NULL)
5450                 return NULL;
5451
5452         cdev->netdev = dev;
5453         cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
5454         cdev->register_device = cnic_register_device;
5455         cdev->unregister_device = cnic_unregister_device;
5456         cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
5457
5458         cp = cdev->cnic_priv;
5459         cp->dev = cdev;
5460         cp->l2_single_buf_size = 0x400;
5461         cp->l2_rx_ring_size = 3;
5462
5463         spin_lock_init(&cp->cnic_ulp_lock);
5464
5465         netdev_info(dev, "Added CNIC device\n");
5466
5467         return cdev;
5468 }
5469
5470 static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
5471 {
5472         struct pci_dev *pdev;
5473         struct cnic_dev *cdev;
5474         struct cnic_local *cp;
5475         struct bnx2 *bp = netdev_priv(dev);
5476         struct cnic_eth_dev *ethdev = NULL;
5477
5478         if (bp->cnic_probe)
5479                 ethdev = (bp->cnic_probe)(dev);
5480
5481         if (!ethdev)
5482                 return NULL;
5483
5484         pdev = ethdev->pdev;
5485         if (!pdev)
5486                 return NULL;
5487
5488         dev_hold(dev);
5489         pci_dev_get(pdev);
5490         if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
5491              pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
5492             (pdev->revision < 0x10)) {
5493                 pci_dev_put(pdev);
5494                 goto cnic_err;
5495         }
5496         pci_dev_put(pdev);
5497
5498         cdev = cnic_alloc_dev(dev, pdev);
5499         if (cdev == NULL)
5500                 goto cnic_err;
5501
5502         set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
5503         cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
5504
5505         cp = cdev->cnic_priv;
5506         cp->ethdev = ethdev;
5507         cdev->pcidev = pdev;
5508         cp->chip_id = ethdev->chip_id;
5509
5510         cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5511
5512         cp->cnic_ops = &cnic_bnx2_ops;
5513         cp->start_hw = cnic_start_bnx2_hw;
5514         cp->stop_hw = cnic_stop_bnx2_hw;
5515         cp->setup_pgtbl = cnic_setup_page_tbl;
5516         cp->alloc_resc = cnic_alloc_bnx2_resc;
5517         cp->free_resc = cnic_free_resc;
5518         cp->start_cm = cnic_cm_init_bnx2_hw;
5519         cp->stop_cm = cnic_cm_stop_bnx2_hw;
5520         cp->enable_int = cnic_enable_bnx2_int;
5521         cp->disable_int_sync = cnic_disable_bnx2_int_sync;
5522         cp->close_conn = cnic_close_bnx2_conn;
5523         return cdev;
5524
5525 cnic_err:
5526         dev_put(dev);
5527         return NULL;
5528 }
5529
5530 static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
5531 {
5532         struct pci_dev *pdev;
5533         struct cnic_dev *cdev;
5534         struct cnic_local *cp;
5535         struct bnx2x *bp = netdev_priv(dev);
5536         struct cnic_eth_dev *ethdev = NULL;
5537
5538         if (bp->cnic_probe)
5539                 ethdev = bp->cnic_probe(dev);
5540
5541         if (!ethdev)
5542                 return NULL;
5543
5544         pdev = ethdev->pdev;
5545         if (!pdev)
5546                 return NULL;
5547
5548         dev_hold(dev);
5549         cdev = cnic_alloc_dev(dev, pdev);
5550         if (cdev == NULL) {
5551                 dev_put(dev);
5552                 return NULL;
5553         }
5554
5555         set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
5556         cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
5557
5558         cp = cdev->cnic_priv;
5559         cp->ethdev = ethdev;
5560         cdev->pcidev = pdev;
5561         cp->chip_id = ethdev->chip_id;
5562
5563         cdev->stats_addr = ethdev->addr_drv_info_to_mcp;
5564
5565         if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
5566                 cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5567         if (CNIC_SUPPORTS_FCOE(bp)) {
5568                 cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
5569                 cdev->max_fcoe_exchanges = ethdev->max_fcoe_exchanges;
5570         }
5571
5572         if (cdev->max_fcoe_conn > BNX2X_FCOE_NUM_CONNECTIONS)
5573                 cdev->max_fcoe_conn = BNX2X_FCOE_NUM_CONNECTIONS;
5574
5575         memcpy(cdev->mac_addr, ethdev->iscsi_mac, ETH_ALEN);
5576
5577         cp->cnic_ops = &cnic_bnx2x_ops;
5578         cp->start_hw = cnic_start_bnx2x_hw;
5579         cp->stop_hw = cnic_stop_bnx2x_hw;
5580         cp->setup_pgtbl = cnic_setup_page_tbl_le;
5581         cp->alloc_resc = cnic_alloc_bnx2x_resc;
5582         cp->free_resc = cnic_free_resc;
5583         cp->start_cm = cnic_cm_init_bnx2x_hw;
5584         cp->stop_cm = cnic_cm_stop_bnx2x_hw;
5585         cp->enable_int = cnic_enable_bnx2x_int;
5586         cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
5587         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5588                 cp->ack_int = cnic_ack_bnx2x_e2_msix;
5589                 cp->arm_int = cnic_arm_bnx2x_e2_msix;
5590         } else {
5591                 cp->ack_int = cnic_ack_bnx2x_msix;
5592                 cp->arm_int = cnic_arm_bnx2x_msix;
5593         }
5594         cp->close_conn = cnic_close_bnx2x_conn;
5595         return cdev;
5596 }
5597
5598 static struct cnic_dev *is_cnic_dev(struct net_device *dev)
5599 {
5600         struct ethtool_drvinfo drvinfo;
5601         struct cnic_dev *cdev = NULL;
5602
5603         if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
5604                 memset(&drvinfo, 0, sizeof(drvinfo));
5605                 dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
5606
5607                 if (!strcmp(drvinfo.driver, "bnx2"))
5608                         cdev = init_bnx2_cnic(dev);
5609                 if (!strcmp(drvinfo.driver, "bnx2x"))
5610                         cdev = init_bnx2x_cnic(dev);
5611                 if (cdev) {
5612                         write_lock(&cnic_dev_lock);
5613                         list_add(&cdev->list, &cnic_dev_list);
5614                         write_unlock(&cnic_dev_lock);
5615                 }
5616         }
5617         return cdev;
5618 }
5619
5620 static void cnic_rcv_netevent(struct cnic_local *cp, unsigned long event,
5621                               u16 vlan_id)
5622 {
5623         int if_type;
5624
5625         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
5626                 struct cnic_ulp_ops *ulp_ops;
5627                 void *ctx;
5628
5629                 mutex_lock(&cnic_lock);
5630                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
5631                                                 lockdep_is_held(&cnic_lock));
5632                 if (!ulp_ops || !ulp_ops->indicate_netevent) {
5633                         mutex_unlock(&cnic_lock);
5634                         continue;
5635                 }
5636
5637                 ctx = cp->ulp_handle[if_type];
5638
5639                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
5640                 mutex_unlock(&cnic_lock);
5641
5642                 ulp_ops->indicate_netevent(ctx, event, vlan_id);
5643
5644                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
5645         }
5646 }
5647
5648 /* netdev event handler */
5649 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
5650                                                          void *ptr)
5651 {
5652         struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
5653         struct cnic_dev *dev;
5654         int new_dev = 0;
5655
5656         dev = cnic_from_netdev(netdev);
5657
5658         if (!dev && event == NETDEV_REGISTER) {
5659                 /* Check for the hot-plug device */
5660                 dev = is_cnic_dev(netdev);
5661                 if (dev) {
5662                         new_dev = 1;
5663                         cnic_hold(dev);
5664                 }
5665         }
5666         if (dev) {
5667                 struct cnic_local *cp = dev->cnic_priv;
5668
5669                 if (new_dev)
5670                         cnic_ulp_init(dev);
5671                 else if (event == NETDEV_UNREGISTER)
5672                         cnic_ulp_exit(dev);
5673
5674                 if (event == NETDEV_UP) {
5675                         if (cnic_register_netdev(dev) != 0) {
5676                                 cnic_put(dev);
5677                                 goto done;
5678                         }
5679                         if (!cnic_start_hw(dev))
5680                                 cnic_ulp_start(dev);
5681                 }
5682
5683                 cnic_rcv_netevent(cp, event, 0);
5684
5685                 if (event == NETDEV_GOING_DOWN) {
5686                         cnic_ulp_stop(dev);
5687                         cnic_stop_hw(dev);
5688                         cnic_unregister_netdev(dev);
5689                 } else if (event == NETDEV_UNREGISTER) {
5690                         write_lock(&cnic_dev_lock);
5691                         list_del_init(&dev->list);
5692                         write_unlock(&cnic_dev_lock);
5693
5694                         cnic_put(dev);
5695                         cnic_free_dev(dev);
5696                         goto done;
5697                 }
5698                 cnic_put(dev);
5699         } else {
5700                 struct net_device *realdev;
5701                 u16 vid;
5702
5703                 vid = cnic_get_vlan(netdev, &realdev);
5704                 if (realdev) {
5705                         dev = cnic_from_netdev(realdev);
5706                         if (dev) {
5707                                 vid |= VLAN_TAG_PRESENT;
5708                                 cnic_rcv_netevent(dev->cnic_priv, event, vid);
5709                                 cnic_put(dev);
5710                         }
5711                 }
5712         }
5713 done:
5714         return NOTIFY_DONE;
5715 }
5716
5717 static struct notifier_block cnic_netdev_notifier = {
5718         .notifier_call = cnic_netdev_event
5719 };
5720
5721 static void cnic_release(void)
5722 {
5723         struct cnic_uio_dev *udev;
5724
5725         while (!list_empty(&cnic_udev_list)) {
5726                 udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
5727                                   list);
5728                 cnic_free_uio(udev);
5729         }
5730 }
5731
5732 static int __init cnic_init(void)
5733 {
5734         int rc = 0;
5735
5736         pr_info("%s", version);
5737
5738         rc = register_netdevice_notifier(&cnic_netdev_notifier);
5739         if (rc) {
5740                 cnic_release();
5741                 return rc;
5742         }
5743
5744         cnic_wq = create_singlethread_workqueue("cnic_wq");
5745         if (!cnic_wq) {
5746                 cnic_release();
5747                 unregister_netdevice_notifier(&cnic_netdev_notifier);
5748                 return -ENOMEM;
5749         }
5750
5751         return 0;
5752 }
5753
5754 static void __exit cnic_exit(void)
5755 {
5756         unregister_netdevice_notifier(&cnic_netdev_notifier);
5757         cnic_release();
5758         destroy_workqueue(cnic_wq);
5759 }
5760
5761 module_init(cnic_init);
5762 module_exit(cnic_exit);