drivers/net/ethernet/broadcom/cnic.c

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