drivers/net/ethernet/broadcom/cnic.c

   1 /* cnic.c: QLogic CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2014 Broadcom Corporation
   4  * Copyright (c) 2014-2015 QLogic Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation.
   9  *
  10  * Original skeleton written by: John(Zongxi) Chen ([email protected])
  11  * Previously modified and maintained by: Michael Chan <[email protected]>
  12  * Maintained By: [email protected]
  13  */
  14
  15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  16
  17 #include <linux/module.h>
  18
  19 #include <linux/kernel.h>
  20 #include <linux/errno.h>
  21 #include <linux/list.h>
  22 #include <linux/slab.h>
  23 #include <linux/pci.h>
  24 #include <linux/init.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/uio_driver.h>
  27 #include <linux/in.h>
  28 #include <linux/dma-mapping.h>
  29 #include <linux/delay.h>
  30 #include <linux/ethtool.h>
  31 #include <linux/if_vlan.h>
  32 #include <linux/prefetch.h>
  33 #include <linux/random.h>
  34 #include <linux/workqueue.h>
  35 #if IS_ENABLED(CONFIG_VLAN_8021Q)
  36 #define BCM_VLAN 1
  37 #endif
  38 #include <net/ip.h>
  39 #include <net/tcp.h>
  40 #include <net/route.h>
  41 #include <net/ipv6.h>
  42 #include <net/ip6_route.h>
  43 #include <net/ip6_checksum.h>
  44 #include <scsi/iscsi_if.h>
  45
  46 #define BCM_CNIC        1
  47 #include "cnic_if.h"
  48 #include "bnx2.h"
  49 #include "bnx2x/bnx2x.h"
  50 #include "bnx2x/bnx2x_reg.h"
  51 #include "bnx2x/bnx2x_fw_defs.h"
  52 #include "bnx2x/bnx2x_hsi.h"
  53 #include "../../../scsi/bnx2i/57xx_iscsi_constants.h"
  54 #include "../../../scsi/bnx2i/57xx_iscsi_hsi.h"
  55 #include "../../../scsi/bnx2fc/bnx2fc_constants.h"
  56 #include "cnic.h"
  57 #include "cnic_defs.h"
  58
  59 #define CNIC_MODULE_NAME        "cnic"
  60
  61 static char version[] =
  62         "QLogic " CNIC_MODULE_NAME "Driver v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
  63
  64 MODULE_AUTHOR("Michael Chan <[email protected]> and John(Zongxi) "
  65               "Chen ([email protected]");
  66 MODULE_DESCRIPTION("QLogic cnic Driver");
  67 MODULE_LICENSE("GPL");
  68 MODULE_VERSION(CNIC_MODULE_VERSION);
  69
  70 /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
  71 static LIST_HEAD(cnic_dev_list);
  72 static LIST_HEAD(cnic_udev_list);
  73 static DEFINE_RWLOCK(cnic_dev_lock);
  74 static DEFINE_MUTEX(cnic_lock);
  75
  76 static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
  77
  78 /* helper function, assuming cnic_lock is held */
  79 static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
  80 {
  81         return rcu_dereference_protected(cnic_ulp_tbl[type],
  82                                          lockdep_is_held(&cnic_lock));
  83 }
  84
  85 static int cnic_service_bnx2(void *, void *);
  86 static int cnic_service_bnx2x(void *, void *);
  87 static int cnic_ctl(void *, struct cnic_ctl_info *);
  88
  89 static struct cnic_ops cnic_bnx2_ops = {
  90         .cnic_owner     = THIS_MODULE,
  91         .cnic_handler   = cnic_service_bnx2,
  92         .cnic_ctl       = cnic_ctl,
  93 };
  94
  95 static struct cnic_ops cnic_bnx2x_ops = {
  96         .cnic_owner     = THIS_MODULE,
  97         .cnic_handler   = cnic_service_bnx2x,
  98         .cnic_ctl       = cnic_ctl,
  99 };
 100
 101 static struct workqueue_struct *cnic_wq;
 102
 103 static void cnic_shutdown_rings(struct cnic_dev *);
 104 static void cnic_init_rings(struct cnic_dev *);
 105 static int cnic_cm_set_pg(struct cnic_sock *);
 106
 107 static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 108 {
 109         struct cnic_uio_dev *udev = uinfo->priv;
 110         struct cnic_dev *dev;
 111
 112         if (!capable(CAP_NET_ADMIN))
 113                 return -EPERM;
 114
 115         if (udev->uio_dev != -1)
 116                 return -EBUSY;
 117
 118         rtnl_lock();
 119         dev = udev->dev;
 120
 121         if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
 122                 rtnl_unlock();
 123                 return -ENODEV;
 124         }
 125
 126         udev->uio_dev = iminor(inode);
 127
 128         cnic_shutdown_rings(dev);
 129         cnic_init_rings(dev);
 130         rtnl_unlock();
 131
 132         return 0;
 133 }
 134
 135 static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 136 {
 137         struct cnic_uio_dev *udev = uinfo->priv;
 138
 139         udev->uio_dev = -1;
 140         return 0;
 141 }
 142
 143 static inline void cnic_hold(struct cnic_dev *dev)
 144 {
 145         atomic_inc(&dev->ref_count);
 146 }
 147
 148 static inline void cnic_put(struct cnic_dev *dev)
 149 {
 150         atomic_dec(&dev->ref_count);
 151 }
 152
 153 static inline void csk_hold(struct cnic_sock *csk)
 154 {
 155         atomic_inc(&csk->ref_count);
 156 }
 157
 158 static inline void csk_put(struct cnic_sock *csk)
 159 {
 160         atomic_dec(&csk->ref_count);
 161 }
 162
 163 static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
 164 {
 165         struct cnic_dev *cdev;
 166
 167         read_lock(&cnic_dev_lock);
 168         list_for_each_entry(cdev, &cnic_dev_list, list) {
 169                 if (netdev == cdev->netdev) {
 170                         cnic_hold(cdev);
 171                         read_unlock(&cnic_dev_lock);
 172                         return cdev;
 173                 }
 174         }
 175         read_unlock(&cnic_dev_lock);
 176         return NULL;
 177 }
 178
 179 static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
 180 {
 181         atomic_inc(&ulp_ops->ref_count);
 182 }
 183
 184 static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
 185 {
 186         atomic_dec(&ulp_ops->ref_count);
 187 }
 188
 189 static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
 190 {
 191         struct cnic_local *cp = dev->cnic_priv;
 192         struct cnic_eth_dev *ethdev = cp->ethdev;
 193         struct drv_ctl_info info;
 194         struct drv_ctl_io *io = &info.data.io;
 195
 196         memset(&info, 0, sizeof(struct drv_ctl_info));
 197         info.cmd = DRV_CTL_CTX_WR_CMD;
 198         io->cid_addr = cid_addr;
 199         io->offset = off;
 200         io->data = val;
 201         ethdev->drv_ctl(dev->netdev, &info);
 202 }
 203
 204 static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
 205 {
 206         struct cnic_local *cp = dev->cnic_priv;
 207         struct cnic_eth_dev *ethdev = cp->ethdev;
 208         struct drv_ctl_info info;
 209         struct drv_ctl_io *io = &info.data.io;
 210
 211         memset(&info, 0, sizeof(struct drv_ctl_info));
 212         info.cmd = DRV_CTL_CTXTBL_WR_CMD;
 213         io->offset = off;
 214         io->dma_addr = addr;
 215         ethdev->drv_ctl(dev->netdev, &info);
 216 }
 217
 218 static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
 219 {
 220         struct cnic_local *cp = dev->cnic_priv;
 221         struct cnic_eth_dev *ethdev = cp->ethdev;
 222         struct drv_ctl_info info;
 223         struct drv_ctl_l2_ring *ring = &info.data.ring;
 224
 225         memset(&info, 0, sizeof(struct drv_ctl_info));
 226         if (start)
 227                 info.cmd = DRV_CTL_START_L2_CMD;
 228         else
 229                 info.cmd = DRV_CTL_STOP_L2_CMD;
 230
 231         ring->cid = cid;
 232         ring->client_id = cl_id;
 233         ethdev->drv_ctl(dev->netdev, &info);
 234 }
 235
 236 static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
 237 {
 238         struct cnic_local *cp = dev->cnic_priv;
 239         struct cnic_eth_dev *ethdev = cp->ethdev;
 240         struct drv_ctl_info info;
 241         struct drv_ctl_io *io = &info.data.io;
 242
 243         memset(&info, 0, sizeof(struct drv_ctl_info));
 244         info.cmd = DRV_CTL_IO_WR_CMD;
 245         io->offset = off;
 246         io->data = val;
 247         ethdev->drv_ctl(dev->netdev, &info);
 248 }
 249
 250 static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
 251 {
 252         struct cnic_local *cp = dev->cnic_priv;
 253         struct cnic_eth_dev *ethdev = cp->ethdev;
 254         struct drv_ctl_info info;
 255         struct drv_ctl_io *io = &info.data.io;
 256
 257         memset(&info, 0, sizeof(struct drv_ctl_info));
 258         info.cmd = DRV_CTL_IO_RD_CMD;
 259         io->offset = off;
 260         ethdev->drv_ctl(dev->netdev, &info);
 261         return io->data;
 262 }
 263
 264 static void cnic_ulp_ctl(struct cnic_dev *dev, int ulp_type, bool reg, int state)
 265 {
 266         struct cnic_local *cp = dev->cnic_priv;
 267         struct cnic_eth_dev *ethdev = cp->ethdev;
 268         struct drv_ctl_info info;
 269         struct fcoe_capabilities *fcoe_cap =
 270                 &info.data.register_data.fcoe_features;
 271
 272         memset(&info, 0, sizeof(struct drv_ctl_info));
 273         if (reg) {
 274                 info.cmd = DRV_CTL_ULP_REGISTER_CMD;
 275                 if (ulp_type == CNIC_ULP_FCOE && dev->fcoe_cap)
 276                         memcpy(fcoe_cap, dev->fcoe_cap, sizeof(*fcoe_cap));
 277         } else {
 278                 info.cmd = DRV_CTL_ULP_UNREGISTER_CMD;
 279         }
 280
 281         info.data.ulp_type = ulp_type;
 282         info.drv_state = state;
 283         ethdev->drv_ctl(dev->netdev, &info);
 284 }
 285
 286 static int cnic_in_use(struct cnic_sock *csk)
 287 {
 288         return test_bit(SK_F_INUSE, &csk->flags);
 289 }
 290
 291 static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
 292 {
 293         struct cnic_local *cp = dev->cnic_priv;
 294         struct cnic_eth_dev *ethdev = cp->ethdev;
 295         struct drv_ctl_info info;
 296
 297         memset(&info, 0, sizeof(struct drv_ctl_info));
 298         info.cmd = cmd;
 299         info.data.credit.credit_count = count;
 300         ethdev->drv_ctl(dev->netdev, &info);
 301 }
 302
 303 static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
 304 {
 305         u32 i;
 306
 307         if (!cp->ctx_tbl)
 308                 return -EINVAL;
 309
 310         for (i = 0; i < cp->max_cid_space; i++) {
 311                 if (cp->ctx_tbl[i].cid == cid) {
 312                         *l5_cid = i;
 313                         return 0;
 314                 }
 315         }
 316         return -EINVAL;
 317 }
 318
 319 static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
 320                            struct cnic_sock *csk)
 321 {
 322         struct iscsi_path path_req;
 323         char *buf = NULL;
 324         u16 len = 0;
 325         u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 326         struct cnic_ulp_ops *ulp_ops;
 327         struct cnic_uio_dev *udev = cp->udev;
 328         int rc = 0, retry = 0;
 329
 330         if (!udev || udev->uio_dev == -1)
 331                 return -ENODEV;
 332
 333         if (csk) {
 334                 len = sizeof(path_req);
 335                 buf = (char *) &path_req;
 336                 memset(&path_req, 0, len);
 337
 338                 msg_type = ISCSI_KEVENT_PATH_REQ;
 339                 path_req.handle = (u64) csk->l5_cid;
 340                 if (test_bit(SK_F_IPV6, &csk->flags)) {
 341                         memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
 342                                sizeof(struct in6_addr));
 343                         path_req.ip_addr_len = 16;
 344                 } else {
 345                         memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
 346                                sizeof(struct in_addr));
 347                         path_req.ip_addr_len = 4;
 348                 }
 349                 path_req.vlan_id = csk->vlan_id;
 350                 path_req.pmtu = csk->mtu;
 351         }
 352
 353         while (retry < 3) {
 354                 rc = 0;
 355                 rcu_read_lock();
 356                 ulp_ops = rcu_dereference(cp->ulp_ops[CNIC_ULP_ISCSI]);
 357                 if (ulp_ops)
 358                         rc = ulp_ops->iscsi_nl_send_msg(
 359                                 cp->ulp_handle[CNIC_ULP_ISCSI],
 360                                 msg_type, buf, len);
 361                 rcu_read_unlock();
 362                 if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
 363                         break;
 364
 365                 msleep(100);
 366                 retry++;
 367         }
 368         return rc;
 369 }
 370
 371 static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
 372
 373 static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 374                                   char *buf, u16 len)
 375 {
 376         int rc = -EINVAL;
 377
 378         switch (msg_type) {
 379         case ISCSI_UEVENT_PATH_UPDATE: {
 380                 struct cnic_local *cp;
 381                 u32 l5_cid;
 382                 struct cnic_sock *csk;
 383                 struct iscsi_path *path_resp;
 384
 385                 if (len < sizeof(*path_resp))
 386                         break;
 387
 388                 path_resp = (struct iscsi_path *) buf;
 389                 cp = dev->cnic_priv;
 390                 l5_cid = (u32) path_resp->handle;
 391                 if (l5_cid >= MAX_CM_SK_TBL_SZ)
 392                         break;
 393
 394                 if (!rcu_access_pointer(cp->ulp_ops[CNIC_ULP_L4])) {
 395                         rc = -ENODEV;
 396                         break;
 397                 }
 398                 csk = &cp->csk_tbl[l5_cid];
 399                 csk_hold(csk);
 400                 if (cnic_in_use(csk) &&
 401                     test_bit(SK_F_CONNECT_START, &csk->flags)) {
 402
 403                         csk->vlan_id = path_resp->vlan_id;
 404
 405                         memcpy(csk->ha, path_resp->mac_addr, ETH_ALEN);
 406                         if (test_bit(SK_F_IPV6, &csk->flags))
 407                                 memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 408                                        sizeof(struct in6_addr));
 409                         else
 410                                 memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
 411                                        sizeof(struct in_addr));
 412
 413                         if (is_valid_ether_addr(csk->ha)) {
 414                                 cnic_cm_set_pg(csk);
 415                         } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
 416                                 !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 417
 418                                 cnic_cm_upcall(cp, csk,
 419                                         L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
 420                                 clear_bit(SK_F_CONNECT_START, &csk->flags);
 421                         }
 422                 }
 423                 csk_put(csk);
 424                 rc = 0;
 425         }
 426         }
 427
 428         return rc;
 429 }
 430
 431 static int cnic_offld_prep(struct cnic_sock *csk)
 432 {
 433         if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 434                 return 0;
 435
 436         if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
 437                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 438                 return 0;
 439         }
 440
 441         return 1;
 442 }
 443
 444 static int cnic_close_prep(struct cnic_sock *csk)
 445 {
 446         clear_bit(SK_F_CONNECT_START, &csk->flags);
 447         smp_mb__after_atomic();
 448
 449         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 450                 while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 451                         msleep(1);
 452
 453                 return 1;
 454         }
 455         return 0;
 456 }
 457
 458 static int cnic_abort_prep(struct cnic_sock *csk)
 459 {
 460         clear_bit(SK_F_CONNECT_START, &csk->flags);
 461         smp_mb__after_atomic();
 462
 463         while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 464                 msleep(1);
 465
 466         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 467                 csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
 468                 return 1;
 469         }
 470
 471         return 0;
 472 }
 473
 474 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 475 {
 476         struct cnic_dev *dev;
 477
 478         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 479                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 480                 return -EINVAL;
 481         }
 482         mutex_lock(&cnic_lock);
 483         if (cnic_ulp_tbl_prot(ulp_type)) {
 484                 pr_err("%s: Type %d has already been registered\n",
 485                        __func__, ulp_type);
 486                 mutex_unlock(&cnic_lock);
 487                 return -EBUSY;
 488         }
 489
 490         read_lock(&cnic_dev_lock);
 491         list_for_each_entry(dev, &cnic_dev_list, list) {
 492                 struct cnic_local *cp = dev->cnic_priv;
 493
 494                 clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
 495         }
 496         read_unlock(&cnic_dev_lock);
 497
 498         atomic_set(&ulp_ops->ref_count, 0);
 499         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
 500         mutex_unlock(&cnic_lock);
 501
 502         /* Prevent race conditions with netdev_event */
 503         rtnl_lock();
 504         list_for_each_entry(dev, &cnic_dev_list, list) {
 505                 struct cnic_local *cp = dev->cnic_priv;
 506
 507                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 508                         ulp_ops->cnic_init(dev);
 509         }
 510         rtnl_unlock();
 511
 512         return 0;
 513 }
 514
 515 int cnic_unregister_driver(int ulp_type)
 516 {
 517         struct cnic_dev *dev;
 518         struct cnic_ulp_ops *ulp_ops;
 519         int i = 0;
 520
 521         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 522                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 523                 return -EINVAL;
 524         }
 525         mutex_lock(&cnic_lock);
 526         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 527         if (!ulp_ops) {
 528                 pr_err("%s: Type %d has not been registered\n",
 529                        __func__, ulp_type);
 530                 goto out_unlock;
 531         }
 532         read_lock(&cnic_dev_lock);
 533         list_for_each_entry(dev, &cnic_dev_list, list) {
 534                 struct cnic_local *cp = dev->cnic_priv;
 535
 536                 if (rcu_access_pointer(cp->ulp_ops[ulp_type])) {
 537                         pr_err("%s: Type %d still has devices registered\n",
 538                                __func__, ulp_type);
 539                         read_unlock(&cnic_dev_lock);
 540                         goto out_unlock;
 541                 }
 542         }
 543         read_unlock(&cnic_dev_lock);
 544
 545         RCU_INIT_POINTER(cnic_ulp_tbl[ulp_type], NULL);
 546
 547         mutex_unlock(&cnic_lock);
 548         synchronize_rcu();
 549         while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
 550                 msleep(100);
 551                 i++;
 552         }
 553
 554         if (atomic_read(&ulp_ops->ref_count) != 0)
 555                 pr_warn("%s: Failed waiting for ref count to go to zero\n",
 556                         __func__);
 557         return 0;
 558
 559 out_unlock:
 560         mutex_unlock(&cnic_lock);
 561         return -EINVAL;
 562 }
 563
 564 static int cnic_start_hw(struct cnic_dev *);
 565 static void cnic_stop_hw(struct cnic_dev *);
 566
 567 static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
 568                                 void *ulp_ctx)
 569 {
 570         struct cnic_local *cp = dev->cnic_priv;
 571         struct cnic_ulp_ops *ulp_ops;
 572
 573         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 574                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 575                 return -EINVAL;
 576         }
 577         mutex_lock(&cnic_lock);
 578         if (cnic_ulp_tbl_prot(ulp_type) == NULL) {
 579                 pr_err("%s: Driver with type %d has not been registered\n",
 580                        __func__, ulp_type);
 581                 mutex_unlock(&cnic_lock);
 582                 return -EAGAIN;
 583         }
 584         if (rcu_access_pointer(cp->ulp_ops[ulp_type])) {
 585                 pr_err("%s: Type %d has already been registered to this device\n",
 586                        __func__, ulp_type);
 587                 mutex_unlock(&cnic_lock);
 588                 return -EBUSY;
 589         }
 590
 591         clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
 592         cp->ulp_handle[ulp_type] = ulp_ctx;
 593         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 594         rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
 595         cnic_hold(dev);
 596
 597         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
 598                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
 599                         ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
 600
 601         mutex_unlock(&cnic_lock);
 602
 603         cnic_ulp_ctl(dev, ulp_type, true, DRV_ACTIVE);
 604
 605         return 0;
 606
 607 }
 608 EXPORT_SYMBOL(cnic_register_driver);
 609
 610 static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
 611 {
 612         struct cnic_local *cp = dev->cnic_priv;
 613         int i = 0;
 614
 615         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 616                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 617                 return -EINVAL;
 618         }
 619
 620         if (ulp_type == CNIC_ULP_ISCSI)
 621                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 622
 623         mutex_lock(&cnic_lock);
 624         if (rcu_access_pointer(cp->ulp_ops[ulp_type])) {
 625                 RCU_INIT_POINTER(cp->ulp_ops[ulp_type], NULL);
 626                 cnic_put(dev);
 627         } else {
 628                 pr_err("%s: device not registered to this ulp type %d\n",
 629                        __func__, ulp_type);
 630                 mutex_unlock(&cnic_lock);
 631                 return -EINVAL;
 632         }
 633         mutex_unlock(&cnic_lock);
 634
 635         if (ulp_type == CNIC_ULP_FCOE)
 636                 dev->fcoe_cap = NULL;
 637
 638         synchronize_rcu();
 639
 640         while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
 641                i < 20) {
 642                 msleep(100);
 643                 i++;
 644         }
 645         if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
 646                 netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
 647
 648         if (test_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 649                 cnic_ulp_ctl(dev, ulp_type, false, DRV_UNLOADED);
 650         else
 651                 cnic_ulp_ctl(dev, ulp_type, false, DRV_INACTIVE);
 652
 653         return 0;
 654 }
 655 EXPORT_SYMBOL(cnic_unregister_driver);
 656
 657 static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id,
 658                             u32 next)
 659 {
 660         id_tbl->start = start_id;
 661         id_tbl->max = size;
 662         id_tbl->next = next;
 663         spin_lock_init(&id_tbl->lock);
 664         id_tbl->table = bitmap_zalloc(size, GFP_KERNEL);
 665         if (!id_tbl->table)
 666                 return -ENOMEM;
 667
 668         return 0;
 669 }
 670
 671 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 672 {
 673         bitmap_free(id_tbl->table);
 674         id_tbl->table = NULL;
 675 }
 676
 677 static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
 678 {
 679         int ret = -1;
 680
 681         id -= id_tbl->start;
 682         if (id >= id_tbl->max)
 683                 return ret;
 684
 685         spin_lock(&id_tbl->lock);
 686         if (!test_bit(id, id_tbl->table)) {
 687                 set_bit(id, id_tbl->table);
 688                 ret = 0;
 689         }
 690         spin_unlock(&id_tbl->lock);
 691         return ret;
 692 }
 693
 694 /* Returns -1 if not successful */
 695 static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
 696 {
 697         u32 id;
 698
 699         spin_lock(&id_tbl->lock);
 700         id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
 701         if (id >= id_tbl->max) {
 702                 id = -1;
 703                 if (id_tbl->next != 0) {
 704                         id = find_first_zero_bit(id_tbl->table, id_tbl->next);
 705                         if (id >= id_tbl->next)
 706                                 id = -1;
 707                 }
 708         }
 709
 710         if (id < id_tbl->max) {
 711                 set_bit(id, id_tbl->table);
 712                 id_tbl->next = (id + 1) & (id_tbl->max - 1);
 713                 id += id_tbl->start;
 714         }
 715
 716         spin_unlock(&id_tbl->lock);
 717
 718         return id;
 719 }
 720
 721 static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
 722 {
 723         if (id == -1)
 724                 return;
 725
 726         id -= id_tbl->start;
 727         if (id >= id_tbl->max)
 728                 return;
 729
 730         clear_bit(id, id_tbl->table);
 731 }
 732
 733 static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
 734 {
 735         int i;
 736
 737         if (!dma->pg_arr)
 738                 return;
 739
 740         for (i = 0; i < dma->num_pages; i++) {
 741                 if (dma->pg_arr[i]) {
 742                         dma_free_coherent(&dev->pcidev->dev, CNIC_PAGE_SIZE,
 743                                           dma->pg_arr[i], dma->pg_map_arr[i]);
 744                         dma->pg_arr[i] = NULL;
 745                 }
 746         }
 747         if (dma->pgtbl) {
 748                 dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 749                                   dma->pgtbl, dma->pgtbl_map);
 750                 dma->pgtbl = NULL;
 751         }
 752         kfree(dma->pg_arr);
 753         dma->pg_arr = NULL;
 754         dma->num_pages = 0;
 755 }
 756
 757 static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
 758 {
 759         int i;
 760         __le32 *page_table = (__le32 *) dma->pgtbl;
 761
 762         for (i = 0; i < dma->num_pages; i++) {
 763                 /* Each entry needs to be in big endian format. */
 764                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 765                 page_table++;
 766                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 767                 page_table++;
 768         }
 769 }
 770
 771 static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
 772 {
 773         int i;
 774         __le32 *page_table = (__le32 *) dma->pgtbl;
 775
 776         for (i = 0; i < dma->num_pages; i++) {
 777                 /* Each entry needs to be in little endian format. */
 778                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 779                 page_table++;
 780                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 781                 page_table++;
 782         }
 783 }
 784
 785 static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
 786                           int pages, int use_pg_tbl)
 787 {
 788         int i, size;
 789         struct cnic_local *cp = dev->cnic_priv;
 790
 791         size = pages * (sizeof(void *) + sizeof(dma_addr_t));
 792         dma->pg_arr = kzalloc(size, GFP_ATOMIC);
 793         if (dma->pg_arr == NULL)
 794                 return -ENOMEM;
 795
 796         dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
 797         dma->num_pages = pages;
 798
 799         for (i = 0; i < pages; i++) {
 800                 dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
 801                                                     CNIC_PAGE_SIZE,
 802                                                     &dma->pg_map_arr[i],
 803                                                     GFP_ATOMIC);
 804                 if (dma->pg_arr[i] == NULL)
 805                         goto error;
 806         }
 807         if (!use_pg_tbl)
 808                 return 0;
 809
 810         dma->pgtbl_size = ((pages * 8) + CNIC_PAGE_SIZE - 1) &
 811                           ~(CNIC_PAGE_SIZE - 1);
 812         dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 813                                         &dma->pgtbl_map, GFP_ATOMIC);
 814         if (dma->pgtbl == NULL)
 815                 goto error;
 816
 817         cp->setup_pgtbl(dev, dma);
 818
 819         return 0;
 820
 821 error:
 822         cnic_free_dma(dev, dma);
 823         return -ENOMEM;
 824 }
 825
 826 static void cnic_free_context(struct cnic_dev *dev)
 827 {
 828         struct cnic_local *cp = dev->cnic_priv;
 829         int i;
 830
 831         for (i = 0; i < cp->ctx_blks; i++) {
 832                 if (cp->ctx_arr[i].ctx) {
 833                         dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
 834                                           cp->ctx_arr[i].ctx,
 835                                           cp->ctx_arr[i].mapping);
 836                         cp->ctx_arr[i].ctx = NULL;
 837                 }
 838         }
 839 }
 840
 841 static void __cnic_free_uio_rings(struct cnic_uio_dev *udev)
 842 {
 843         if (udev->l2_buf) {
 844                 dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 845                                   udev->l2_buf, udev->l2_buf_map);
 846                 udev->l2_buf = NULL;
 847         }
 848
 849         if (udev->l2_ring) {
 850                 dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 851                                   udev->l2_ring, udev->l2_ring_map);
 852                 udev->l2_ring = NULL;
 853         }
 854
 855 }
 856
 857 static void __cnic_free_uio(struct cnic_uio_dev *udev)
 858 {
 859         uio_unregister_device(&udev->cnic_uinfo);
 860
 861         __cnic_free_uio_rings(udev);
 862
 863         pci_dev_put(udev->pdev);
 864         kfree(udev);
 865 }
 866
 867 static void cnic_free_uio(struct cnic_uio_dev *udev)
 868 {
 869         if (!udev)
 870                 return;
 871
 872         write_lock(&cnic_dev_lock);
 873         list_del_init(&udev->list);
 874         write_unlock(&cnic_dev_lock);
 875         __cnic_free_uio(udev);
 876 }
 877
 878 static void cnic_free_resc(struct cnic_dev *dev)
 879 {
 880         struct cnic_local *cp = dev->cnic_priv;
 881         struct cnic_uio_dev *udev = cp->udev;
 882
 883         if (udev) {
 884                 udev->dev = NULL;
 885                 cp->udev = NULL;
 886                 if (udev->uio_dev == -1)
 887                         __cnic_free_uio_rings(udev);
 888         }
 889
 890         cnic_free_context(dev);
 891         kfree(cp->ctx_arr);
 892         cp->ctx_arr = NULL;
 893         cp->ctx_blks = 0;
 894
 895         cnic_free_dma(dev, &cp->gbl_buf_info);
 896         cnic_free_dma(dev, &cp->kwq_info);
 897         cnic_free_dma(dev, &cp->kwq_16_data_info);
 898         cnic_free_dma(dev, &cp->kcq2.dma);
 899         cnic_free_dma(dev, &cp->kcq1.dma);
 900         kfree(cp->iscsi_tbl);
 901         cp->iscsi_tbl = NULL;
 902         kfree(cp->ctx_tbl);
 903         cp->ctx_tbl = NULL;
 904
 905         cnic_free_id_tbl(&cp->fcoe_cid_tbl);
 906         cnic_free_id_tbl(&cp->cid_tbl);
 907 }
 908
 909 static int cnic_alloc_context(struct cnic_dev *dev)
 910 {
 911         struct cnic_local *cp = dev->cnic_priv;
 912
 913         if (BNX2_CHIP(cp) == BNX2_CHIP_5709) {
 914                 int i, k, arr_size;
 915
 916                 cp->ctx_blk_size = CNIC_PAGE_SIZE;
 917                 cp->cids_per_blk = CNIC_PAGE_SIZE / 128;
 918                 arr_size = BNX2_MAX_CID / cp->cids_per_blk *
 919                            sizeof(struct cnic_ctx);
 920                 cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
 921                 if (cp->ctx_arr == NULL)
 922                         return -ENOMEM;
 923
 924                 k = 0;
 925                 for (i = 0; i < 2; i++) {
 926                         u32 j, reg, off, lo, hi;
 927
 928                         if (i == 0)
 929                                 off = BNX2_PG_CTX_MAP;
 930                         else
 931                                 off = BNX2_ISCSI_CTX_MAP;
 932
 933                         reg = cnic_reg_rd_ind(dev, off);
 934                         lo = reg >> 16;
 935                         hi = reg & 0xffff;
 936                         for (j = lo; j < hi; j += cp->cids_per_blk, k++)
 937                                 cp->ctx_arr[k].cid = j;
 938                 }
 939
 940                 cp->ctx_blks = k;
 941                 if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
 942                         cp->ctx_blks = 0;
 943                         return -ENOMEM;
 944                 }
 945
 946                 for (i = 0; i < cp->ctx_blks; i++) {
 947                         cp->ctx_arr[i].ctx =
 948                                 dma_alloc_coherent(&dev->pcidev->dev,
 949                                                    CNIC_PAGE_SIZE,
 950                                                    &cp->ctx_arr[i].mapping,
 951                                                    GFP_KERNEL);
 952                         if (cp->ctx_arr[i].ctx == NULL)
 953                                 return -ENOMEM;
 954                 }
 955         }
 956         return 0;
 957 }
 958
 959 static u16 cnic_bnx2_next_idx(u16 idx)
 960 {
 961         return idx + 1;
 962 }
 963
 964 static u16 cnic_bnx2_hw_idx(u16 idx)
 965 {
 966         return idx;
 967 }
 968
 969 static u16 cnic_bnx2x_next_idx(u16 idx)
 970 {
 971         idx++;
 972         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 973                 idx++;
 974
 975         return idx;
 976 }
 977
 978 static u16 cnic_bnx2x_hw_idx(u16 idx)
 979 {
 980         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 981                 idx++;
 982         return idx;
 983 }
 984
 985 static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info,
 986                           bool use_pg_tbl)
 987 {
 988         int err, i, use_page_tbl = 0;
 989         struct kcqe **kcq;
 990
 991         if (use_pg_tbl)
 992                 use_page_tbl = 1;
 993
 994         err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, use_page_tbl);
 995         if (err)
 996                 return err;
 997
 998         kcq = (struct kcqe **) info->dma.pg_arr;
 999         info->kcq = kcq;
1000
1001         info->next_idx = cnic_bnx2_next_idx;
1002         info->hw_idx = cnic_bnx2_hw_idx;
1003         if (use_pg_tbl)
1004                 return 0;
1005
1006         info->next_idx = cnic_bnx2x_next_idx;
1007         info->hw_idx = cnic_bnx2x_hw_idx;
1008
1009         for (i = 0; i < KCQ_PAGE_CNT; i++) {
1010                 struct bnx2x_bd_chain_next *next =
1011                         (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
1012                 int j = i + 1;
1013
1014                 if (j >= KCQ_PAGE_CNT)
1015                         j = 0;
1016                 next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
1017                 next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
1018         }
1019         return 0;
1020 }
1021
1022 static int __cnic_alloc_uio_rings(struct cnic_uio_dev *udev, int pages)
1023 {
1024         struct cnic_local *cp = udev->dev->cnic_priv;
1025
1026         if (udev->l2_ring)
1027                 return 0;
1028
1029         udev->l2_ring_size = pages * CNIC_PAGE_SIZE;
1030         udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
1031                                            &udev->l2_ring_map, GFP_KERNEL);
1032         if (!udev->l2_ring)
1033                 return -ENOMEM;
1034
1035         udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
1036         udev->l2_buf_size = CNIC_PAGE_ALIGN(udev->l2_buf_size);
1037         udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
1038                                           &udev->l2_buf_map, GFP_KERNEL);
1039         if (!udev->l2_buf) {
1040                 __cnic_free_uio_rings(udev);
1041                 return -ENOMEM;
1042         }
1043
1044         return 0;
1045
1046 }
1047
1048 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
1049 {
1050         struct cnic_local *cp = dev->cnic_priv;
1051         struct cnic_uio_dev *udev;
1052
1053         list_for_each_entry(udev, &cnic_udev_list, list) {
1054                 if (udev->pdev == dev->pcidev) {
1055                         udev->dev = dev;
1056                         if (__cnic_alloc_uio_rings(udev, pages)) {
1057                                 udev->dev = NULL;
1058                                 return -ENOMEM;
1059                         }
1060                         cp->udev = udev;
1061                         return 0;
1062                 }
1063         }
1064
1065         udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
1066         if (!udev)
1067                 return -ENOMEM;
1068
1069         udev->uio_dev = -1;
1070
1071         udev->dev = dev;
1072         udev->pdev = dev->pcidev;
1073
1074         if (__cnic_alloc_uio_rings(udev, pages))
1075                 goto err_udev;
1076
1077         list_add(&udev->list, &cnic_udev_list);
1078
1079         pci_dev_get(udev->pdev);
1080
1081         cp->udev = udev;
1082
1083         return 0;
1084
1085  err_udev:
1086         kfree(udev);
1087         return -ENOMEM;
1088 }
1089
1090 static int cnic_init_uio(struct cnic_dev *dev)
1091 {
1092         struct cnic_local *cp = dev->cnic_priv;
1093         struct cnic_uio_dev *udev = cp->udev;
1094         struct uio_info *uinfo;
1095         int ret = 0;
1096
1097         if (!udev)
1098                 return -ENOMEM;
1099
1100         uinfo = &udev->cnic_uinfo;
1101
1102         uinfo->mem[0].addr = pci_resource_start(dev->pcidev, 0);
1103         uinfo->mem[0].internal_addr = dev->regview;
1104         uinfo->mem[0].memtype = UIO_MEM_PHYS;
1105
1106         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
1107                 uinfo->mem[0].size = MB_GET_CID_ADDR(TX_TSS_CID +
1108                                                      TX_MAX_TSS_RINGS + 1);
1109                 uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
1110                                         CNIC_PAGE_MASK;
1111                 uinfo->mem[1].dma_addr = cp->status_blk_map;
1112                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
1113                         uinfo->mem[1].size = PAGE_ALIGN(BNX2_SBLK_MSIX_ALIGN_SIZE * 9);
1114                 else
1115                         uinfo->mem[1].size = PAGE_ALIGN(BNX2_SBLK_MSIX_ALIGN_SIZE);
1116
1117                 uinfo->name = "bnx2_cnic";
1118         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1119                 uinfo->mem[0].size = pci_resource_len(dev->pcidev, 0);
1120
1121                 uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
1122                         CNIC_PAGE_MASK;
1123                 uinfo->mem[1].dma_addr = cp->status_blk_map;
1124                 uinfo->mem[1].size = PAGE_ALIGN(sizeof(*cp->bnx2x_def_status_blk));
1125
1126                 uinfo->name = "bnx2x_cnic";
1127         }
1128
1129         uinfo->mem[1].dma_device = &dev->pcidev->dev;
1130         uinfo->mem[1].memtype = UIO_MEM_DMA_COHERENT;
1131
1132         uinfo->mem[2].addr = (unsigned long) udev->l2_ring;
1133         uinfo->mem[2].dma_addr = udev->l2_ring_map;
1134         uinfo->mem[2].size = PAGE_ALIGN(udev->l2_ring_size);
1135         uinfo->mem[2].dma_device = &dev->pcidev->dev;
1136         uinfo->mem[2].memtype = UIO_MEM_DMA_COHERENT;
1137
1138         uinfo->mem[3].addr = (unsigned long) udev->l2_buf;
1139         uinfo->mem[3].dma_addr = udev->l2_buf_map;
1140         uinfo->mem[3].size = PAGE_ALIGN(udev->l2_buf_size);
1141         uinfo->mem[3].dma_device = &dev->pcidev->dev;
1142         uinfo->mem[3].memtype = UIO_MEM_DMA_COHERENT;
1143
1144         uinfo->version = CNIC_MODULE_VERSION;
1145         uinfo->irq = UIO_IRQ_CUSTOM;
1146
1147         uinfo->open = cnic_uio_open;
1148         uinfo->release = cnic_uio_close;
1149
1150         if (udev->uio_dev == -1) {
1151                 if (!uinfo->priv) {
1152                         uinfo->priv = udev;
1153
1154                         ret = uio_register_device(&udev->pdev->dev, uinfo);
1155                 }
1156         } else {
1157                 cnic_init_rings(dev);
1158         }
1159
1160         return ret;
1161 }
1162
1163 static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
1164 {
1165         struct cnic_local *cp = dev->cnic_priv;
1166         int ret;
1167
1168         ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
1169         if (ret)
1170                 goto error;
1171         cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
1172
1173         ret = cnic_alloc_kcq(dev, &cp->kcq1, true);
1174         if (ret)
1175                 goto error;
1176
1177         ret = cnic_alloc_context(dev);
1178         if (ret)
1179                 goto error;
1180
1181         ret = cnic_alloc_uio_rings(dev, 2);
1182         if (ret)
1183                 goto error;
1184
1185         ret = cnic_init_uio(dev);
1186         if (ret)
1187                 goto error;
1188
1189         return 0;
1190
1191 error:
1192         cnic_free_resc(dev);
1193         return ret;
1194 }
1195
1196 static int cnic_alloc_bnx2x_context(struct cnic_dev *dev)
1197 {
1198         struct cnic_local *cp = dev->cnic_priv;
1199         struct bnx2x *bp = netdev_priv(dev->netdev);
1200         int ctx_blk_size = cp->ethdev->ctx_blk_size;
1201         int total_mem, blks, i;
1202
1203         total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
1204         blks = total_mem / ctx_blk_size;
1205         if (total_mem % ctx_blk_size)
1206                 blks++;
1207
1208         if (blks > cp->ethdev->ctx_tbl_len)
1209                 return -ENOMEM;
1210
1211         cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL);
1212         if (cp->ctx_arr == NULL)
1213                 return -ENOMEM;
1214
1215         cp->ctx_blks = blks;
1216         cp->ctx_blk_size = ctx_blk_size;
1217         if (!CHIP_IS_E1(bp))
1218                 cp->ctx_align = 0;
1219         else
1220                 cp->ctx_align = ctx_blk_size;
1221
1222         cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
1223
1224         for (i = 0; i < blks; i++) {
1225                 cp->ctx_arr[i].ctx =
1226                         dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
1227                                            &cp->ctx_arr[i].mapping,
1228                                            GFP_KERNEL);
1229                 if (cp->ctx_arr[i].ctx == NULL)
1230                         return -ENOMEM;
1231
1232                 if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
1233                         if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
1234                                 cnic_free_context(dev);
1235                                 cp->ctx_blk_size += cp->ctx_align;
1236                                 i = -1;
1237                                 continue;
1238                         }
1239                 }
1240         }
1241         return 0;
1242 }
1243
1244 static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
1245 {
1246         struct cnic_local *cp = dev->cnic_priv;
1247         struct bnx2x *bp = netdev_priv(dev->netdev);
1248         struct cnic_eth_dev *ethdev = cp->ethdev;
1249         u32 start_cid = ethdev->starting_cid;
1250         int i, j, n, ret, pages;
1251         struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
1252
1253         cp->max_cid_space = MAX_ISCSI_TBL_SZ;
1254         cp->iscsi_start_cid = start_cid;
1255         cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ;
1256
1257         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
1258                 cp->max_cid_space += dev->max_fcoe_conn;
1259                 cp->fcoe_init_cid = ethdev->fcoe_init_cid;
1260                 if (!cp->fcoe_init_cid)
1261                         cp->fcoe_init_cid = 0x10;
1262         }
1263
1264         cp->iscsi_tbl = kcalloc(MAX_ISCSI_TBL_SZ, sizeof(struct cnic_iscsi),
1265                                 GFP_KERNEL);
1266         if (!cp->iscsi_tbl)
1267                 goto error;
1268
1269         cp->ctx_tbl = kcalloc(cp->max_cid_space, sizeof(struct cnic_context),
1270                               GFP_KERNEL);
1271         if (!cp->ctx_tbl)
1272                 goto error;
1273
1274         for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) {
1275                 cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i];
1276                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI;
1277         }
1278
1279         for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++)
1280                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE;
1281
1282         pages = CNIC_PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
1283                 CNIC_PAGE_SIZE;
1284
1285         ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
1286         if (ret)
1287                 goto error;
1288
1289         n = CNIC_PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
1290         for (i = 0, j = 0; i < cp->max_cid_space; i++) {
1291                 long off = CNIC_KWQ16_DATA_SIZE * (i % n);
1292
1293                 cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off;
1294                 cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] +
1295                                                    off;
1296
1297                 if ((i % n) == (n - 1))
1298                         j++;
1299         }
1300
1301         ret = cnic_alloc_kcq(dev, &cp->kcq1, false);
1302         if (ret)
1303                 goto error;
1304
1305         if (CNIC_SUPPORTS_FCOE(bp)) {
1306                 ret = cnic_alloc_kcq(dev, &cp->kcq2, true);
1307                 if (ret)
1308                         goto error;
1309         }
1310
1311         pages = CNIC_PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / CNIC_PAGE_SIZE;
1312         ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0);
1313         if (ret)
1314                 goto error;
1315
1316         ret = cnic_alloc_bnx2x_context(dev);
1317         if (ret)
1318                 goto error;
1319
1320         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
1321                 return 0;
1322
1323         cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
1324         cp->status_blk_map = cp->ethdev->irq_arr[1].status_blk_map;
1325
1326         cp->l2_rx_ring_size = 15;
1327
1328         ret = cnic_alloc_uio_rings(dev, 4);
1329         if (ret)
1330                 goto error;
1331
1332         ret = cnic_init_uio(dev);
1333         if (ret)
1334                 goto error;
1335
1336         return 0;
1337
1338 error:
1339         cnic_free_resc(dev);
1340         return -ENOMEM;
1341 }
1342
1343 static inline u32 cnic_kwq_avail(struct cnic_local *cp)
1344 {
1345         return cp->max_kwq_idx -
1346                 ((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx);
1347 }
1348
1349 static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
1350                                   u32 num_wqes)
1351 {
1352         struct cnic_local *cp = dev->cnic_priv;
1353         struct kwqe *prod_qe;
1354         u16 prod, sw_prod, i;
1355
1356         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
1357                 return -EAGAIN;         /* bnx2 is down */
1358
1359         spin_lock_bh(&cp->cnic_ulp_lock);
1360         if (num_wqes > cnic_kwq_avail(cp) &&
1361             !test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) {
1362                 spin_unlock_bh(&cp->cnic_ulp_lock);
1363                 return -EAGAIN;
1364         }
1365
1366         clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
1367
1368         prod = cp->kwq_prod_idx;
1369         sw_prod = prod & MAX_KWQ_IDX;
1370         for (i = 0; i < num_wqes; i++) {
1371                 prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)];
1372                 memcpy(prod_qe, wqes[i], sizeof(struct kwqe));
1373                 prod++;
1374                 sw_prod = prod & MAX_KWQ_IDX;
1375         }
1376         cp->kwq_prod_idx = prod;
1377
1378         CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx);
1379
1380         spin_unlock_bh(&cp->cnic_ulp_lock);
1381         return 0;
1382 }
1383
1384 static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid,
1385                                    union l5cm_specific_data *l5_data)
1386 {
1387         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1388         dma_addr_t map;
1389
1390         map = ctx->kwqe_data_mapping;
1391         l5_data->phy_address.lo = (u64) map & 0xffffffff;
1392         l5_data->phy_address.hi = (u64) map >> 32;
1393         return ctx->kwqe_data;
1394 }
1395
1396 static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid,
1397                                 u32 type, union l5cm_specific_data *l5_data)
1398 {
1399         struct cnic_local *cp = dev->cnic_priv;
1400         struct bnx2x *bp = netdev_priv(dev->netdev);
1401         struct l5cm_spe kwqe;
1402         struct kwqe_16 *kwq[1];
1403         u16 type_16;
1404         int ret;
1405
1406         kwqe.hdr.conn_and_cmd_data =
1407                 cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
1408                              BNX2X_HW_CID(bp, cid)));
1409
1410         type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
1411         type_16 |= (bp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
1412                    SPE_HDR_FUNCTION_ID;
1413
1414         kwqe.hdr.type = cpu_to_le16(type_16);
1415         kwqe.hdr.reserved1 = 0;
1416         kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
1417         kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
1418
1419         kwq[0] = (struct kwqe_16 *) &kwqe;
1420
1421         spin_lock_bh(&cp->cnic_ulp_lock);
1422         ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
1423         spin_unlock_bh(&cp->cnic_ulp_lock);
1424
1425         if (ret == 1)
1426                 return 0;
1427
1428         return ret;
1429 }
1430
1431 static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
1432                                    struct kcqe *cqes[], u32 num_cqes)
1433 {
1434         struct cnic_local *cp = dev->cnic_priv;
1435         struct cnic_ulp_ops *ulp_ops;
1436
1437         rcu_read_lock();
1438         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
1439         if (likely(ulp_ops)) {
1440                 ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
1441                                           cqes, num_cqes);
1442         }
1443         rcu_read_unlock();
1444 }
1445
1446 static void cnic_bnx2x_set_tcp_options(struct cnic_dev *dev, int time_stamps,
1447                                        int en_tcp_dack)
1448 {
1449         struct bnx2x *bp = netdev_priv(dev->netdev);
1450         u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
1451         u16 tstorm_flags = 0;
1452
1453         if (time_stamps) {
1454                 xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1455                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1456         }
1457         if (en_tcp_dack)
1458                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_DELAYED_ACK_EN;
1459
1460         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1461                  XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(bp->pfid), xstorm_flags);
1462
1463         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1464                   TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(bp->pfid), tstorm_flags);
1465 }
1466
1467 static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
1468 {
1469         struct cnic_local *cp = dev->cnic_priv;
1470         struct bnx2x *bp = netdev_priv(dev->netdev);
1471         struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
1472         int hq_bds, pages;
1473         u32 pfid = bp->pfid;
1474
1475         cp->num_iscsi_tasks = req1->num_tasks_per_conn;
1476         cp->num_ccells = req1->num_ccells_per_conn;
1477         cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
1478                               cp->num_iscsi_tasks;
1479         cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
1480                         BNX2X_ISCSI_R2TQE_SIZE;
1481         cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
1482         pages = CNIC_PAGE_ALIGN(cp->hq_size) / CNIC_PAGE_SIZE;
1483         hq_bds = pages * (CNIC_PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
1484         cp->num_cqs = req1->num_cqs;
1485
1486         if (!dev->max_iscsi_conn)
1487                 return 0;
1488
1489         /* init Tstorm RAM */
1490         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1491                   req1->rq_num_wqes);
1492         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1493                   CNIC_PAGE_SIZE);
1494         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1495                  TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1496         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1497                   TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1498                   req1->num_tasks_per_conn);
1499
1500         /* init Ustorm RAM */
1501         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1502                   USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
1503                   req1->rq_buffer_size);
1504         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1505                   CNIC_PAGE_SIZE);
1506         CNIC_WR8(dev, BAR_USTRORM_INTMEM +
1507                  USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1508         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1509                   USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1510                   req1->num_tasks_per_conn);
1511         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1512                   req1->rq_num_wqes);
1513         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1514                   req1->cq_num_wqes);
1515         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1516                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1517
1518         /* init Xstorm RAM */
1519         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1520                   CNIC_PAGE_SIZE);
1521         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1522                  XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1523         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
1524                   XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1525                   req1->num_tasks_per_conn);
1526         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1527                   hq_bds);
1528         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
1529                   req1->num_tasks_per_conn);
1530         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1531                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1532
1533         /* init Cstorm RAM */
1534         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1535                   CNIC_PAGE_SIZE);
1536         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
1537                  CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), CNIC_PAGE_BITS);
1538         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1539                   CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1540                   req1->num_tasks_per_conn);
1541         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1542                   req1->cq_num_wqes);
1543         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1544                   hq_bds);
1545
1546         cnic_bnx2x_set_tcp_options(dev,
1547                         req1->flags & ISCSI_KWQE_INIT1_TIME_STAMPS_ENABLE,
1548                         req1->flags & ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE);
1549
1550         return 0;
1551 }
1552
1553 static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
1554 {
1555         struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
1556         struct bnx2x *bp = netdev_priv(dev->netdev);
1557         u32 pfid = bp->pfid;
1558         struct iscsi_kcqe kcqe;
1559         struct kcqe *cqes[1];
1560
1561         memset(&kcqe, 0, sizeof(kcqe));
1562         if (!dev->max_iscsi_conn) {
1563                 kcqe.completion_status =
1564                         ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
1565                 goto done;
1566         }
1567
1568         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1569                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1570         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1571                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1572                 req2->error_bit_map[1]);
1573
1574         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1575                   USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1576         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1577                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1578         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1579                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1580                 req2->error_bit_map[1]);
1581
1582         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1583                   CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1584
1585         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1586
1587 done:
1588         kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
1589         cqes[0] = (struct kcqe *) &kcqe;
1590         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1591
1592         return 0;
1593 }
1594
1595 static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1596 {
1597         struct cnic_local *cp = dev->cnic_priv;
1598         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1599
1600         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
1601                 struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1602
1603                 cnic_free_dma(dev, &iscsi->hq_info);
1604                 cnic_free_dma(dev, &iscsi->r2tq_info);
1605                 cnic_free_dma(dev, &iscsi->task_array_info);
1606                 cnic_free_id(&cp->cid_tbl, ctx->cid);
1607         } else {
1608                 cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid);
1609         }
1610
1611         ctx->cid = 0;
1612 }
1613
1614 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1615 {
1616         u32 cid;
1617         int ret, pages;
1618         struct cnic_local *cp = dev->cnic_priv;
1619         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1620         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1621
1622         if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
1623                 cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
1624                 if (cid == -1) {
1625                         ret = -ENOMEM;
1626                         goto error;
1627                 }
1628                 ctx->cid = cid;
1629                 return 0;
1630         }
1631
1632         cid = cnic_alloc_new_id(&cp->cid_tbl);
1633         if (cid == -1) {
1634                 ret = -ENOMEM;
1635                 goto error;
1636         }
1637
1638         ctx->cid = cid;
1639         pages = CNIC_PAGE_ALIGN(cp->task_array_size) / CNIC_PAGE_SIZE;
1640
1641         ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
1642         if (ret)
1643                 goto error;
1644
1645         pages = CNIC_PAGE_ALIGN(cp->r2tq_size) / CNIC_PAGE_SIZE;
1646         ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
1647         if (ret)
1648                 goto error;
1649
1650         pages = CNIC_PAGE_ALIGN(cp->hq_size) / CNIC_PAGE_SIZE;
1651         ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
1652         if (ret)
1653                 goto error;
1654
1655         return 0;
1656
1657 error:
1658         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1659         return ret;
1660 }
1661
1662 static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
1663                                 struct regpair *ctx_addr)
1664 {
1665         struct cnic_local *cp = dev->cnic_priv;
1666         struct cnic_eth_dev *ethdev = cp->ethdev;
1667         int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
1668         int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
1669         unsigned long align_off = 0;
1670         dma_addr_t ctx_map;
1671         void *ctx;
1672
1673         if (cp->ctx_align) {
1674                 unsigned long mask = cp->ctx_align - 1;
1675
1676                 if (cp->ctx_arr[blk].mapping & mask)
1677                         align_off = cp->ctx_align -
1678                                     (cp->ctx_arr[blk].mapping & mask);
1679         }
1680         ctx_map = cp->ctx_arr[blk].mapping + align_off +
1681                 (off * BNX2X_CONTEXT_MEM_SIZE);
1682         ctx = cp->ctx_arr[blk].ctx + align_off +
1683               (off * BNX2X_CONTEXT_MEM_SIZE);
1684         if (init)
1685                 memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
1686
1687         ctx_addr->lo = ctx_map & 0xffffffff;
1688         ctx_addr->hi = (u64) ctx_map >> 32;
1689         return ctx;
1690 }
1691
1692 static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
1693                                 u32 num)
1694 {
1695         struct cnic_local *cp = dev->cnic_priv;
1696         struct bnx2x *bp = netdev_priv(dev->netdev);
1697         struct iscsi_kwqe_conn_offload1 *req1 =
1698                         (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1699         struct iscsi_kwqe_conn_offload2 *req2 =
1700                         (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1701         struct iscsi_kwqe_conn_offload3 *req3;
1702         struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
1703         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1704         u32 cid = ctx->cid;
1705         u32 hw_cid = BNX2X_HW_CID(bp, cid);
1706         struct iscsi_context *ictx;
1707         struct regpair context_addr;
1708         int i, j, n = 2, n_max;
1709         u8 port = BP_PORT(bp);
1710
1711         ctx->ctx_flags = 0;
1712         if (!req2->num_additional_wqes)
1713                 return -EINVAL;
1714
1715         n_max = req2->num_additional_wqes + 2;
1716
1717         ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
1718         if (ictx == NULL)
1719                 return -ENOMEM;
1720
1721         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1722
1723         ictx->xstorm_ag_context.hq_prod = 1;
1724
1725         ictx->xstorm_st_context.iscsi.first_burst_length =
1726                 ISCSI_DEF_FIRST_BURST_LEN;
1727         ictx->xstorm_st_context.iscsi.max_send_pdu_length =
1728                 ISCSI_DEF_MAX_RECV_SEG_LEN;
1729         ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
1730                 req1->sq_page_table_addr_lo;
1731         ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
1732                 req1->sq_page_table_addr_hi;
1733         ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
1734         ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
1735         ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
1736                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1737         ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
1738                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1739         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
1740                 iscsi->hq_info.pgtbl[0];
1741         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
1742                 iscsi->hq_info.pgtbl[1];
1743         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
1744                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1745         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
1746                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1747         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
1748                 iscsi->r2tq_info.pgtbl[0];
1749         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
1750                 iscsi->r2tq_info.pgtbl[1];
1751         ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
1752                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1753         ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
1754                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1755         ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
1756                 BNX2X_ISCSI_PBL_NOT_CACHED;
1757         ictx->xstorm_st_context.iscsi.flags.flags |=
1758                 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
1759         ictx->xstorm_st_context.iscsi.flags.flags |=
1760                 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
1761         ictx->xstorm_st_context.common.ethernet.reserved_vlan_type =
1762                 ETH_P_8021Q;
1763         if (BNX2X_CHIP_IS_E2_PLUS(bp) &&
1764             bp->common.chip_port_mode == CHIP_2_PORT_MODE) {
1765
1766                 port = 0;
1767         }
1768         ictx->xstorm_st_context.common.flags =
1769                 1 << XSTORM_COMMON_CONTEXT_SECTION_PHYSQ_INITIALIZED_SHIFT;
1770         ictx->xstorm_st_context.common.flags =
1771                 port << XSTORM_COMMON_CONTEXT_SECTION_PBF_PORT_SHIFT;
1772
1773         ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
1774         /* TSTORM requires the base address of RQ DB & not PTE */
1775         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
1776                 req2->rq_page_table_addr_lo & CNIC_PAGE_MASK;
1777         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
1778                 req2->rq_page_table_addr_hi;
1779         ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
1780         ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
1781         ictx->tstorm_st_context.tcp.flags2 |=
1782                 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
1783         ictx->tstorm_st_context.tcp.ooo_support_mode =
1784                 TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
1785
1786         ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
1787
1788         ictx->ustorm_st_context.ring.rq.pbl_base.lo =
1789                 req2->rq_page_table_addr_lo;
1790         ictx->ustorm_st_context.ring.rq.pbl_base.hi =
1791                 req2->rq_page_table_addr_hi;
1792         ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
1793         ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
1794         ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
1795                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1796         ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
1797                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1798         ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
1799                 iscsi->r2tq_info.pgtbl[0];
1800         ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
1801                 iscsi->r2tq_info.pgtbl[1];
1802         ictx->ustorm_st_context.ring.cq_pbl_base.lo =
1803                 req1->cq_page_table_addr_lo;
1804         ictx->ustorm_st_context.ring.cq_pbl_base.hi =
1805                 req1->cq_page_table_addr_hi;
1806         ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
1807         ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
1808         ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
1809         ictx->ustorm_st_context.task_pbe_cache_index =
1810                 BNX2X_ISCSI_PBL_NOT_CACHED;
1811         ictx->ustorm_st_context.task_pdu_cache_index =
1812                 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
1813
1814         for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
1815                 if (j == 3) {
1816                         if (n >= n_max)
1817                                 break;
1818                         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1819                         j = 0;
1820                 }
1821                 ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
1822                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
1823                         req3->qp_first_pte[j].hi;
1824                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
1825                         req3->qp_first_pte[j].lo;
1826         }
1827
1828         ictx->ustorm_st_context.task_pbl_base.lo =
1829                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1830         ictx->ustorm_st_context.task_pbl_base.hi =
1831                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1832         ictx->ustorm_st_context.tce_phy_addr.lo =
1833                 iscsi->task_array_info.pgtbl[0];
1834         ictx->ustorm_st_context.tce_phy_addr.hi =
1835                 iscsi->task_array_info.pgtbl[1];
1836         ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1837         ictx->ustorm_st_context.num_cqs = cp->num_cqs;
1838         ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
1839         ictx->ustorm_st_context.negotiated_rx_and_flags |=
1840                 ISCSI_DEF_MAX_BURST_LEN;
1841         ictx->ustorm_st_context.negotiated_rx |=
1842                 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
1843                 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
1844
1845         ictx->cstorm_st_context.hq_pbl_base.lo =
1846                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1847         ictx->cstorm_st_context.hq_pbl_base.hi =
1848                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1849         ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
1850         ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
1851         ictx->cstorm_st_context.task_pbl_base.lo =
1852                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1853         ictx->cstorm_st_context.task_pbl_base.hi =
1854                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1855         /* CSTORM and USTORM initialization is different, CSTORM requires
1856          * CQ DB base & not PTE addr */
1857         ictx->cstorm_st_context.cq_db_base.lo =
1858                 req1->cq_page_table_addr_lo & CNIC_PAGE_MASK;
1859         ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
1860         ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1861         ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
1862         for (i = 0; i < cp->num_cqs; i++) {
1863                 ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
1864                         ISCSI_INITIAL_SN;
1865                 ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
1866                         ISCSI_INITIAL_SN;
1867         }
1868
1869         ictx->xstorm_ag_context.cdu_reserved =
1870                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
1871                                        ISCSI_CONNECTION_TYPE);
1872         ictx->ustorm_ag_context.cdu_usage =
1873                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
1874                                        ISCSI_CONNECTION_TYPE);
1875         return 0;
1876
1877 }
1878
1879 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
1880                                    u32 num, int *work)
1881 {
1882         struct iscsi_kwqe_conn_offload1 *req1;
1883         struct iscsi_kwqe_conn_offload2 *req2;
1884         struct cnic_local *cp = dev->cnic_priv;
1885         struct bnx2x *bp = netdev_priv(dev->netdev);
1886         struct cnic_context *ctx;
1887         struct iscsi_kcqe kcqe;
1888         struct kcqe *cqes[1];
1889         u32 l5_cid;
1890         int ret = 0;
1891
1892         if (num < 2) {
1893                 *work = num;
1894                 return -EINVAL;
1895         }
1896
1897         req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1898         req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1899         if ((num - 2) < req2->num_additional_wqes) {
1900                 *work = num;
1901                 return -EINVAL;
1902         }
1903         *work = 2 + req2->num_additional_wqes;
1904
1905         l5_cid = req1->iscsi_conn_id;
1906         if (l5_cid >= MAX_ISCSI_TBL_SZ)
1907                 return -EINVAL;
1908
1909         memset(&kcqe, 0, sizeof(kcqe));
1910         kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
1911         kcqe.iscsi_conn_id = l5_cid;
1912         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
1913
1914         ctx = &cp->ctx_tbl[l5_cid];
1915         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
1916                 kcqe.completion_status =
1917                         ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
1918                 goto done;
1919         }
1920
1921         if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
1922                 atomic_dec(&cp->iscsi_conn);
1923                 goto done;
1924         }
1925         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
1926         if (ret) {
1927                 atomic_dec(&cp->iscsi_conn);
1928                 goto done;
1929         }
1930         ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
1931         if (ret < 0) {
1932                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
1933                 atomic_dec(&cp->iscsi_conn);
1934                 goto done;
1935         }
1936
1937         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1938         kcqe.iscsi_conn_context_id = BNX2X_HW_CID(bp, cp->ctx_tbl[l5_cid].cid);
1939
1940 done:
1941         cqes[0] = (struct kcqe *) &kcqe;
1942         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1943         return 0;
1944 }
1945
1946
1947 static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
1948 {
1949         struct cnic_local *cp = dev->cnic_priv;
1950         struct iscsi_kwqe_conn_update *req =
1951                 (struct iscsi_kwqe_conn_update *) kwqe;
1952         void *data;
1953         union l5cm_specific_data l5_data;
1954         u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
1955         int ret;
1956
1957         if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
1958                 return -EINVAL;
1959
1960         data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
1961         if (!data)
1962                 return -ENOMEM;
1963
1964         memcpy(data, kwqe, sizeof(struct kwqe));
1965
1966         ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
1967                         req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
1968         return ret;
1969 }
1970
1971 static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
1972 {
1973         struct cnic_local *cp = dev->cnic_priv;
1974         struct bnx2x *bp = netdev_priv(dev->netdev);
1975         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1976         union l5cm_specific_data l5_data;
1977         int ret;
1978         u32 hw_cid;
1979
1980         init_waitqueue_head(&ctx->waitq);
1981         ctx->wait_cond = 0;
1982         memset(&l5_data, 0, sizeof(l5_data));
1983         hw_cid = BNX2X_HW_CID(bp, ctx->cid);
1984
1985         ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
1986                                   hw_cid, NONE_CONNECTION_TYPE, &l5_data);
1987
1988         if (ret == 0) {
1989                 wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO);
1990                 if (unlikely(test_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags)))
1991                         return -EBUSY;
1992         }
1993
1994         return 0;
1995 }
1996
1997 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
1998 {
1999         struct cnic_local *cp = dev->cnic_priv;
2000         struct iscsi_kwqe_conn_destroy *req =
2001                 (struct iscsi_kwqe_conn_destroy *) kwqe;
2002         u32 l5_cid = req->reserved0;
2003         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2004         int ret = 0;
2005         struct iscsi_kcqe kcqe;
2006         struct kcqe *cqes[1];
2007
2008         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2009                 goto skip_cfc_delete;
2010
2011         if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
2012                 unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
2013
2014                 if (delta > (2 * HZ))
2015                         delta = 0;
2016
2017                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2018                 queue_delayed_work(cnic_wq, &cp->delete_task, delta);
2019                 goto destroy_reply;
2020         }
2021
2022         ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
2023
2024 skip_cfc_delete:
2025         cnic_free_bnx2x_conn_resc(dev, l5_cid);
2026
2027         if (!ret) {
2028                 atomic_dec(&cp->iscsi_conn);
2029                 clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2030         }
2031
2032 destroy_reply:
2033         memset(&kcqe, 0, sizeof(kcqe));
2034         kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
2035         kcqe.iscsi_conn_id = l5_cid;
2036         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
2037         kcqe.iscsi_conn_context_id = req->context_id;
2038
2039         cqes[0] = (struct kcqe *) &kcqe;
2040         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
2041
2042         return 0;
2043 }
2044
2045 static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
2046                                       struct l4_kwq_connect_req1 *kwqe1,
2047                                       struct l4_kwq_connect_req3 *kwqe3,
2048                                       struct l5cm_active_conn_buffer *conn_buf)
2049 {
2050         struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
2051         struct l5cm_xstorm_conn_buffer *xstorm_buf =
2052                 &conn_buf->xstorm_conn_buffer;
2053         struct l5cm_tstorm_conn_buffer *tstorm_buf =
2054                 &conn_buf->tstorm_conn_buffer;
2055         struct regpair context_addr;
2056         u32 cid = BNX2X_SW_CID(kwqe1->cid);
2057         struct in6_addr src_ip, dst_ip;
2058         int i;
2059         u32 *addrp;
2060
2061         addrp = (u32 *) &conn_addr->local_ip_addr;
2062         for (i = 0; i < 4; i++, addrp++)
2063                 src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
2064
2065         addrp = (u32 *) &conn_addr->remote_ip_addr;
2066         for (i = 0; i < 4; i++, addrp++)
2067                 dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
2068
2069         cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
2070
2071         xstorm_buf->context_addr.hi = context_addr.hi;
2072         xstorm_buf->context_addr.lo = context_addr.lo;
2073         xstorm_buf->mss = 0xffff;
2074         xstorm_buf->rcv_buf = kwqe3->rcv_buf;
2075         if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
2076                 xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
2077         xstorm_buf->pseudo_header_checksum =
2078                 swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
2079
2080         if (kwqe3->ka_timeout) {
2081                 tstorm_buf->ka_enable = 1;
2082                 tstorm_buf->ka_timeout = kwqe3->ka_timeout;
2083                 tstorm_buf->ka_interval = kwqe3->ka_interval;
2084                 tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
2085         }
2086         tstorm_buf->max_rt_time = 0xffffffff;
2087 }
2088
2089 static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
2090 {
2091         struct bnx2x *bp = netdev_priv(dev->netdev);
2092         u32 pfid = bp->pfid;
2093         u8 *mac = dev->mac_addr;
2094
2095         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2096                  XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
2097         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2098                  XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
2099         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2100                  XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
2101         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2102                  XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
2103         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2104                  XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
2105         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2106                  XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
2107
2108         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2109                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
2110         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2111                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2112                  mac[4]);
2113         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2114                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
2115         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2116                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2117                  mac[2]);
2118         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2119                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[1]);
2120         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2121                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2122                  mac[0]);
2123 }
2124
2125 static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
2126                               u32 num, int *work)
2127 {
2128         struct cnic_local *cp = dev->cnic_priv;
2129         struct bnx2x *bp = netdev_priv(dev->netdev);
2130         struct l4_kwq_connect_req1 *kwqe1 =
2131                 (struct l4_kwq_connect_req1 *) wqes[0];
2132         struct l4_kwq_connect_req3 *kwqe3;
2133         struct l5cm_active_conn_buffer *conn_buf;
2134         struct l5cm_conn_addr_params *conn_addr;
2135         union l5cm_specific_data l5_data;
2136         u32 l5_cid = kwqe1->pg_cid;
2137         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
2138         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2139         int ret;
2140
2141         if (num < 2) {
2142                 *work = num;
2143                 return -EINVAL;
2144         }
2145
2146         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
2147                 *work = 3;
2148         else
2149                 *work = 2;
2150
2151         if (num < *work) {
2152                 *work = num;
2153                 return -EINVAL;
2154         }
2155
2156         if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
2157                 netdev_err(dev->netdev, "conn_buf size too big\n");
2158                 return -ENOMEM;
2159         }
2160         conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2161         if (!conn_buf)
2162                 return -ENOMEM;
2163
2164         memset(conn_buf, 0, sizeof(*conn_buf));
2165
2166         conn_addr = &conn_buf->conn_addr_buf;
2167         conn_addr->remote_addr_0 = csk->ha[0];
2168         conn_addr->remote_addr_1 = csk->ha[1];
2169         conn_addr->remote_addr_2 = csk->ha[2];
2170         conn_addr->remote_addr_3 = csk->ha[3];
2171         conn_addr->remote_addr_4 = csk->ha[4];
2172         conn_addr->remote_addr_5 = csk->ha[5];
2173
2174         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
2175                 struct l4_kwq_connect_req2 *kwqe2 =
2176                         (struct l4_kwq_connect_req2 *) wqes[1];
2177
2178                 conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
2179                 conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
2180                 conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
2181
2182                 conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
2183                 conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
2184                 conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
2185                 conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
2186         }
2187         kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
2188
2189         conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
2190         conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
2191         conn_addr->local_tcp_port = kwqe1->src_port;
2192         conn_addr->remote_tcp_port = kwqe1->dst_port;
2193
2194         conn_addr->pmtu = kwqe3->pmtu;
2195         cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
2196
2197         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
2198                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(bp->pfid), csk->vlan_id);
2199
2200         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
2201                         kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2202         if (!ret)
2203                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2204
2205         return ret;
2206 }
2207
2208 static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
2209 {
2210         struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
2211         union l5cm_specific_data l5_data;
2212         int ret;
2213
2214         memset(&l5_data, 0, sizeof(l5_data));
2215         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
2216                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2217         return ret;
2218 }
2219
2220 static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
2221 {
2222         struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
2223         union l5cm_specific_data l5_data;
2224         int ret;
2225
2226         memset(&l5_data, 0, sizeof(l5_data));
2227         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
2228                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2229         return ret;
2230 }
2231 static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2232 {
2233         struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
2234         struct l4_kcq kcqe;
2235         struct kcqe *cqes[1];
2236
2237         memset(&kcqe, 0, sizeof(kcqe));
2238         kcqe.pg_host_opaque = req->host_opaque;
2239         kcqe.pg_cid = req->host_opaque;
2240         kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
2241         cqes[0] = (struct kcqe *) &kcqe;
2242         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2243         return 0;
2244 }
2245
2246 static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2247 {
2248         struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
2249         struct l4_kcq kcqe;
2250         struct kcqe *cqes[1];
2251
2252         memset(&kcqe, 0, sizeof(kcqe));
2253         kcqe.pg_host_opaque = req->pg_host_opaque;
2254         kcqe.pg_cid = req->pg_cid;
2255         kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
2256         cqes[0] = (struct kcqe *) &kcqe;
2257         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2258         return 0;
2259 }
2260
2261 static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
2262 {
2263         struct fcoe_kwqe_stat *req;
2264         struct fcoe_stat_ramrod_params *fcoe_stat;
2265         union l5cm_specific_data l5_data;
2266         struct cnic_local *cp = dev->cnic_priv;
2267         struct bnx2x *bp = netdev_priv(dev->netdev);
2268         int ret;
2269         u32 cid;
2270
2271         req = (struct fcoe_kwqe_stat *) kwqe;
2272         cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid);
2273
2274         fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2275         if (!fcoe_stat)
2276                 return -ENOMEM;
2277
2278         memset(fcoe_stat, 0, sizeof(*fcoe_stat));
2279         memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
2280
2281         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT_FUNC, cid,
2282                                   FCOE_CONNECTION_TYPE, &l5_data);
2283         return ret;
2284 }
2285
2286 static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
2287                                  u32 num, int *work)
2288 {
2289         int ret;
2290         struct cnic_local *cp = dev->cnic_priv;
2291         struct bnx2x *bp = netdev_priv(dev->netdev);
2292         u32 cid;
2293         struct fcoe_init_ramrod_params *fcoe_init;
2294         struct fcoe_kwqe_init1 *req1;
2295         struct fcoe_kwqe_init2 *req2;
2296         struct fcoe_kwqe_init3 *req3;
2297         union l5cm_specific_data l5_data;
2298
2299         if (num < 3) {
2300                 *work = num;
2301                 return -EINVAL;
2302         }
2303         req1 = (struct fcoe_kwqe_init1 *) wqes[0];
2304         req2 = (struct fcoe_kwqe_init2 *) wqes[1];
2305         req3 = (struct fcoe_kwqe_init3 *) wqes[2];
2306         if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
2307                 *work = 1;
2308                 return -EINVAL;
2309         }
2310         if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
2311                 *work = 2;
2312                 return -EINVAL;
2313         }
2314
2315         if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
2316                 netdev_err(dev->netdev, "fcoe_init size too big\n");
2317                 return -ENOMEM;
2318         }
2319         fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2320         if (!fcoe_init)
2321                 return -ENOMEM;
2322
2323         memset(fcoe_init, 0, sizeof(*fcoe_init));
2324         memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
2325         memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
2326         memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
2327         fcoe_init->eq_pbl_base.lo = cp->kcq2.dma.pgtbl_map & 0xffffffff;
2328         fcoe_init->eq_pbl_base.hi = (u64) cp->kcq2.dma.pgtbl_map >> 32;
2329         fcoe_init->eq_pbl_size = cp->kcq2.dma.num_pages;
2330
2331         fcoe_init->sb_num = cp->status_blk_num;
2332         fcoe_init->eq_prod = MAX_KCQ_IDX;
2333         fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
2334         cp->kcq2.sw_prod_idx = 0;
2335
2336         cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid);
2337         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT_FUNC, cid,
2338                                   FCOE_CONNECTION_TYPE, &l5_data);
2339         *work = 3;
2340         return ret;
2341 }
2342
2343 static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
2344                                  u32 num, int *work)
2345 {
2346         int ret = 0;
2347         u32 cid = -1, l5_cid;
2348         struct cnic_local *cp = dev->cnic_priv;
2349         struct bnx2x *bp = netdev_priv(dev->netdev);
2350         struct fcoe_kwqe_conn_offload1 *req1;
2351         struct fcoe_kwqe_conn_offload2 *req2;
2352         struct fcoe_kwqe_conn_offload3 *req3;
2353         struct fcoe_kwqe_conn_offload4 *req4;
2354         struct fcoe_conn_offload_ramrod_params *fcoe_offload;
2355         struct cnic_context *ctx;
2356         struct fcoe_context *fctx;
2357         struct regpair ctx_addr;
2358         union l5cm_specific_data l5_data;
2359         struct fcoe_kcqe kcqe;
2360         struct kcqe *cqes[1];
2361
2362         if (num < 4) {
2363                 *work = num;
2364                 return -EINVAL;
2365         }
2366         req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
2367         req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
2368         req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
2369         req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
2370
2371         *work = 4;
2372
2373         l5_cid = req1->fcoe_conn_id;
2374         if (l5_cid >= dev->max_fcoe_conn)
2375                 goto err_reply;
2376
2377         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2378
2379         ctx = &cp->ctx_tbl[l5_cid];
2380         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2381                 goto err_reply;
2382
2383         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
2384         if (ret) {
2385                 ret = 0;
2386                 goto err_reply;
2387         }
2388         cid = ctx->cid;
2389
2390         fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
2391         if (fctx) {
2392                 u32 hw_cid = BNX2X_HW_CID(bp, cid);
2393                 u32 val;
2394
2395                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
2396                                              FCOE_CONNECTION_TYPE);
2397                 fctx->xstorm_ag_context.cdu_reserved = val;
2398                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
2399                                              FCOE_CONNECTION_TYPE);
2400                 fctx->ustorm_ag_context.cdu_usage = val;
2401         }
2402         if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
2403                 netdev_err(dev->netdev, "fcoe_offload size too big\n");
2404                 goto err_reply;
2405         }
2406         fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2407         if (!fcoe_offload)
2408                 goto err_reply;
2409
2410         memset(fcoe_offload, 0, sizeof(*fcoe_offload));
2411         memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
2412         memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
2413         memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
2414         memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
2415
2416         cid = BNX2X_HW_CID(bp, cid);
2417         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
2418                                   FCOE_CONNECTION_TYPE, &l5_data);
2419         if (!ret)
2420                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2421
2422         return ret;
2423
2424 err_reply:
2425         if (cid != -1)
2426                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
2427
2428         memset(&kcqe, 0, sizeof(kcqe));
2429         kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
2430         kcqe.fcoe_conn_id = req1->fcoe_conn_id;
2431         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
2432
2433         cqes[0] = (struct kcqe *) &kcqe;
2434         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2435         return ret;
2436 }
2437
2438 static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
2439 {
2440         struct fcoe_kwqe_conn_enable_disable *req;
2441         struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
2442         union l5cm_specific_data l5_data;
2443         int ret;
2444         u32 cid, l5_cid;
2445         struct cnic_local *cp = dev->cnic_priv;
2446
2447         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2448         cid = req->context_id;
2449         l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
2450
2451         if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
2452                 netdev_err(dev->netdev, "fcoe_enable size too big\n");
2453                 return -ENOMEM;
2454         }
2455         fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2456         if (!fcoe_enable)
2457                 return -ENOMEM;
2458
2459         memset(fcoe_enable, 0, sizeof(*fcoe_enable));
2460         memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
2461         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
2462                                   FCOE_CONNECTION_TYPE, &l5_data);
2463         return ret;
2464 }
2465
2466 static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
2467 {
2468         struct fcoe_kwqe_conn_enable_disable *req;
2469         struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
2470         union l5cm_specific_data l5_data;
2471         int ret;
2472         u32 cid, l5_cid;
2473         struct cnic_local *cp = dev->cnic_priv;
2474
2475         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2476         cid = req->context_id;
2477         l5_cid = req->conn_id;
2478         if (l5_cid >= dev->max_fcoe_conn)
2479                 return -EINVAL;
2480
2481         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2482
2483         if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
2484                 netdev_err(dev->netdev, "fcoe_disable size too big\n");
2485                 return -ENOMEM;
2486         }
2487         fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2488         if (!fcoe_disable)
2489                 return -ENOMEM;
2490
2491         memset(fcoe_disable, 0, sizeof(*fcoe_disable));
2492         memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
2493         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
2494                                   FCOE_CONNECTION_TYPE, &l5_data);
2495         return ret;
2496 }
2497
2498 static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2499 {
2500         struct fcoe_kwqe_conn_destroy *req;
2501         union l5cm_specific_data l5_data;
2502         int ret;
2503         u32 cid, l5_cid;
2504         struct cnic_local *cp = dev->cnic_priv;
2505         struct cnic_context *ctx;
2506         struct fcoe_kcqe kcqe;
2507         struct kcqe *cqes[1];
2508
2509         req = (struct fcoe_kwqe_conn_destroy *) kwqe;
2510         cid = req->context_id;
2511         l5_cid = req->conn_id;
2512         if (l5_cid >= dev->max_fcoe_conn)
2513                 return -EINVAL;
2514
2515         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2516
2517         ctx = &cp->ctx_tbl[l5_cid];
2518
2519         init_waitqueue_head(&ctx->waitq);
2520         ctx->wait_cond = 0;
2521
2522         memset(&kcqe, 0, sizeof(kcqe));
2523         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_ERROR;
2524         memset(&l5_data, 0, sizeof(l5_data));
2525         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
2526                                   FCOE_CONNECTION_TYPE, &l5_data);
2527         if (ret == 0) {
2528                 wait_event_timeout(ctx->waitq, ctx->wait_cond, CNIC_RAMROD_TMO);
2529                 if (ctx->wait_cond)
2530                         kcqe.completion_status = 0;
2531         }
2532
2533         set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2534         queue_delayed_work(cnic_wq, &cp->delete_task, msecs_to_jiffies(2000));
2535
2536         kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
2537         kcqe.fcoe_conn_id = req->conn_id;
2538         kcqe.fcoe_conn_context_id = cid;
2539
2540         cqes[0] = (struct kcqe *) &kcqe;
2541         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2542         return ret;
2543 }
2544
2545 static void cnic_bnx2x_delete_wait(struct cnic_dev *dev, u32 start_cid)
2546 {
2547         struct cnic_local *cp = dev->cnic_priv;
2548         u32 i;
2549
2550         for (i = start_cid; i < cp->max_cid_space; i++) {
2551                 struct cnic_context *ctx = &cp->ctx_tbl[i];
2552                 int j;
2553
2554                 while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
2555                         msleep(10);
2556
2557                 for (j = 0; j < 5; j++) {
2558                         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2559                                 break;
2560                         msleep(20);
2561                 }
2562
2563                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2564                         netdev_warn(dev->netdev, "CID %x not deleted\n",
2565                                    ctx->cid);
2566         }
2567 }
2568
2569 static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2570 {
2571         union l5cm_specific_data l5_data;
2572         struct cnic_local *cp = dev->cnic_priv;
2573         struct bnx2x *bp = netdev_priv(dev->netdev);
2574         int ret;
2575         u32 cid;
2576
2577         cnic_bnx2x_delete_wait(dev, MAX_ISCSI_TBL_SZ);
2578
2579         cid = BNX2X_HW_CID(bp, cp->fcoe_init_cid);
2580
2581         memset(&l5_data, 0, sizeof(l5_data));
2582         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY_FUNC, cid,
2583                                   FCOE_CONNECTION_TYPE, &l5_data);
2584         return ret;
2585 }
2586
2587 static void cnic_bnx2x_kwqe_err(struct cnic_dev *dev, struct kwqe *kwqe)
2588 {
2589         struct cnic_local *cp = dev->cnic_priv;
2590         struct kcqe kcqe;
2591         struct kcqe *cqes[1];
2592         u32 cid;
2593         u32 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2594         u32 layer_code = kwqe->kwqe_op_flag & KWQE_LAYER_MASK;
2595         u32 kcqe_op;
2596         int ulp_type;
2597
2598         cid = kwqe->kwqe_info0;
2599         memset(&kcqe, 0, sizeof(kcqe));
2600
2601         if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_FCOE) {
2602                 u32 l5_cid = 0;
2603
2604                 ulp_type = CNIC_ULP_FCOE;
2605                 if (opcode == FCOE_KWQE_OPCODE_DISABLE_CONN) {
2606                         struct fcoe_kwqe_conn_enable_disable *req;
2607
2608                         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2609                         kcqe_op = FCOE_KCQE_OPCODE_DISABLE_CONN;
2610                         cid = req->context_id;
2611                         l5_cid = req->conn_id;
2612                 } else if (opcode == FCOE_KWQE_OPCODE_DESTROY) {
2613                         kcqe_op = FCOE_KCQE_OPCODE_DESTROY_FUNC;
2614                 } else {
2615                         return;
2616                 }
2617                 kcqe.kcqe_op_flag = kcqe_op << KCQE_FLAGS_OPCODE_SHIFT;
2618                 kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_FCOE;
2619                 kcqe.kcqe_info1 = FCOE_KCQE_COMPLETION_STATUS_PARITY_ERROR;
2620                 kcqe.kcqe_info2 = cid;
2621                 kcqe.kcqe_info0 = l5_cid;
2622
2623         } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L5_ISCSI) {
2624                 ulp_type = CNIC_ULP_ISCSI;
2625                 if (opcode == ISCSI_KWQE_OPCODE_UPDATE_CONN)
2626                         cid = kwqe->kwqe_info1;
2627
2628                 kcqe.kcqe_op_flag = (opcode + 0x10) << KCQE_FLAGS_OPCODE_SHIFT;
2629                 kcqe.kcqe_op_flag |= KCQE_FLAGS_LAYER_MASK_L5_ISCSI;
2630                 kcqe.kcqe_info1 = ISCSI_KCQE_COMPLETION_STATUS_PARITY_ERR;
2631                 kcqe.kcqe_info2 = cid;
2632                 cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &kcqe.kcqe_info0);
2633
2634         } else if (layer_code == KWQE_FLAGS_LAYER_MASK_L4) {
2635                 struct l4_kcq *l4kcqe = (struct l4_kcq *) &kcqe;
2636
2637                 ulp_type = CNIC_ULP_L4;
2638                 if (opcode == L4_KWQE_OPCODE_VALUE_CONNECT1)
2639                         kcqe_op = L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE;
2640                 else if (opcode == L4_KWQE_OPCODE_VALUE_RESET)
2641                         kcqe_op = L4_KCQE_OPCODE_VALUE_RESET_COMP;
2642                 else if (opcode == L4_KWQE_OPCODE_VALUE_CLOSE)
2643                         kcqe_op = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
2644                 else
2645                         return;
2646
2647                 kcqe.kcqe_op_flag = (kcqe_op << KCQE_FLAGS_OPCODE_SHIFT) |
2648                                     KCQE_FLAGS_LAYER_MASK_L4;
2649                 l4kcqe->status = L4_KCQE_COMPLETION_STATUS_PARITY_ERROR;
2650                 l4kcqe->cid = cid;
2651                 cnic_get_l5_cid(cp, BNX2X_SW_CID(cid), &l4kcqe->conn_id);
2652         } else {
2653                 return;
2654         }
2655
2656         cqes[0] = &kcqe;
2657         cnic_reply_bnx2x_kcqes(dev, ulp_type, cqes, 1);
2658 }
2659
2660 static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev,
2661                                          struct kwqe *wqes[], u32 num_wqes)
2662 {
2663         int i, work, ret;
2664         u32 opcode;
2665         struct kwqe *kwqe;
2666
2667         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2668                 return -EAGAIN;         /* bnx2 is down */
2669
2670         for (i = 0; i < num_wqes; ) {
2671                 kwqe = wqes[i];
2672                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2673                 work = 1;
2674
2675                 switch (opcode) {
2676                 case ISCSI_KWQE_OPCODE_INIT1:
2677                         ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
2678                         break;
2679                 case ISCSI_KWQE_OPCODE_INIT2:
2680                         ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
2681                         break;
2682                 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
2683                         ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
2684                                                      num_wqes - i, &work);
2685                         break;
2686                 case ISCSI_KWQE_OPCODE_UPDATE_CONN:
2687                         ret = cnic_bnx2x_iscsi_update(dev, kwqe);
2688                         break;
2689                 case ISCSI_KWQE_OPCODE_DESTROY_CONN:
2690                         ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
2691                         break;
2692                 case L4_KWQE_OPCODE_VALUE_CONNECT1:
2693                         ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
2694                                                  &work);
2695                         break;
2696                 case L4_KWQE_OPCODE_VALUE_CLOSE:
2697                         ret = cnic_bnx2x_close(dev, kwqe);
2698                         break;
2699                 case L4_KWQE_OPCODE_VALUE_RESET:
2700                         ret = cnic_bnx2x_reset(dev, kwqe);
2701                         break;
2702                 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
2703                         ret = cnic_bnx2x_offload_pg(dev, kwqe);
2704                         break;
2705                 case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
2706                         ret = cnic_bnx2x_update_pg(dev, kwqe);
2707                         break;
2708                 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
2709                         ret = 0;
2710                         break;
2711                 default:
2712                         ret = 0;
2713                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2714                                    opcode);
2715                         break;
2716                 }
2717                 if (ret < 0) {
2718                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2719                                    opcode);
2720
2721                         /* Possibly bnx2x parity error, send completion
2722                          * to ulp drivers with error code to speed up
2723                          * cleanup and reset recovery.
2724                          */
2725                         if (ret == -EIO || ret == -EAGAIN)
2726                                 cnic_bnx2x_kwqe_err(dev, kwqe);
2727                 }
2728                 i += work;
2729         }
2730         return 0;
2731 }
2732
2733 static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
2734                                         struct kwqe *wqes[], u32 num_wqes)
2735 {
2736         struct bnx2x *bp = netdev_priv(dev->netdev);
2737         int i, work, ret;
2738         u32 opcode;
2739         struct kwqe *kwqe;
2740
2741         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2742                 return -EAGAIN;         /* bnx2 is down */
2743
2744         if (!BNX2X_CHIP_IS_E2_PLUS(bp))
2745                 return -EINVAL;
2746
2747         for (i = 0; i < num_wqes; ) {
2748                 kwqe = wqes[i];
2749                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2750                 work = 1;
2751
2752                 switch (opcode) {
2753                 case FCOE_KWQE_OPCODE_INIT1:
2754                         ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
2755                                                     num_wqes - i, &work);
2756                         break;
2757                 case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
2758                         ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
2759                                                     num_wqes - i, &work);
2760                         break;
2761                 case FCOE_KWQE_OPCODE_ENABLE_CONN:
2762                         ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
2763                         break;
2764                 case FCOE_KWQE_OPCODE_DISABLE_CONN:
2765                         ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
2766                         break;
2767                 case FCOE_KWQE_OPCODE_DESTROY_CONN:
2768                         ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
2769                         break;
2770                 case FCOE_KWQE_OPCODE_DESTROY:
2771                         ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
2772                         break;
2773                 case FCOE_KWQE_OPCODE_STAT:
2774                         ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
2775                         break;
2776                 default:
2777                         ret = 0;
2778                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2779                                    opcode);
2780                         break;
2781                 }
2782                 if (ret < 0) {
2783                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2784                                    opcode);
2785
2786                         /* Possibly bnx2x parity error, send completion
2787                          * to ulp drivers with error code to speed up
2788                          * cleanup and reset recovery.
2789                          */
2790                         if (ret == -EIO || ret == -EAGAIN)
2791                                 cnic_bnx2x_kwqe_err(dev, kwqe);
2792                 }
2793                 i += work;
2794         }
2795         return 0;
2796 }
2797
2798 static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
2799                                    u32 num_wqes)
2800 {
2801         int ret = -EINVAL;
2802         u32 layer_code;
2803
2804         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2805                 return -EAGAIN;         /* bnx2x is down */
2806
2807         if (!num_wqes)
2808                 return 0;
2809
2810         layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
2811         switch (layer_code) {
2812         case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
2813         case KWQE_FLAGS_LAYER_MASK_L4:
2814         case KWQE_FLAGS_LAYER_MASK_L2:
2815                 ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
2816                 break;
2817
2818         case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
2819                 ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
2820                 break;
2821         }
2822         return ret;
2823 }
2824
2825 static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
2826 {
2827         if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
2828                 return KCQE_FLAGS_LAYER_MASK_L4;
2829
2830         return opflag & KCQE_FLAGS_LAYER_MASK;
2831 }
2832
2833 static void service_kcqes(struct cnic_dev *dev, int num_cqes)
2834 {
2835         struct cnic_local *cp = dev->cnic_priv;
2836         int i, j, comp = 0;
2837
2838         i = 0;
2839         j = 1;
2840         while (num_cqes) {
2841                 struct cnic_ulp_ops *ulp_ops;
2842                 int ulp_type;
2843                 u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
2844                 u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag);
2845
2846                 if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
2847                         comp++;
2848
2849                 while (j < num_cqes) {
2850                         u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
2851
2852                         if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
2853                                 break;
2854
2855                         if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
2856                                 comp++;
2857                         j++;
2858                 }
2859
2860                 if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
2861                         ulp_type = CNIC_ULP_RDMA;
2862                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
2863                         ulp_type = CNIC_ULP_ISCSI;
2864                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE)
2865                         ulp_type = CNIC_ULP_FCOE;
2866                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
2867                         ulp_type = CNIC_ULP_L4;
2868                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
2869                         goto end;
2870                 else {
2871                         netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
2872                                    kcqe_op_flag);
2873                         goto end;
2874                 }
2875
2876                 rcu_read_lock();
2877                 ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
2878                 if (likely(ulp_ops)) {
2879                         ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
2880                                                   cp->completed_kcq + i, j);
2881                 }
2882                 rcu_read_unlock();
2883 end:
2884                 num_cqes -= j;
2885                 i += j;
2886                 j = 1;
2887         }
2888         if (unlikely(comp))
2889                 cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
2890 }
2891
2892 static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
2893 {
2894         struct cnic_local *cp = dev->cnic_priv;
2895         u16 i, ri, hw_prod, last;
2896         struct kcqe *kcqe;
2897         int kcqe_cnt = 0, last_cnt = 0;
2898
2899         i = ri = last = info->sw_prod_idx;
2900         ri &= MAX_KCQ_IDX;
2901         hw_prod = *info->hw_prod_idx_ptr;
2902         hw_prod = info->hw_idx(hw_prod);
2903
2904         while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
2905                 kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
2906                 cp->completed_kcq[kcqe_cnt++] = kcqe;
2907                 i = info->next_idx(i);
2908                 ri = i & MAX_KCQ_IDX;
2909                 if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
2910                         last_cnt = kcqe_cnt;
2911                         last = i;
2912                 }
2913         }
2914
2915         info->sw_prod_idx = last;
2916         return last_cnt;
2917 }
2918
2919 static int cnic_l2_completion(struct cnic_local *cp)
2920 {
2921         u16 hw_cons, sw_cons;
2922         struct cnic_uio_dev *udev = cp->udev;
2923         union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
2924                                         (udev->l2_ring + (2 * CNIC_PAGE_SIZE));
2925         u32 cmd;
2926         int comp = 0;
2927
2928         if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
2929                 return 0;
2930
2931         hw_cons = *cp->rx_cons_ptr;
2932         if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
2933                 hw_cons++;
2934
2935         sw_cons = cp->rx_cons;
2936         while (sw_cons != hw_cons) {
2937                 u8 cqe_fp_flags;
2938
2939                 cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
2940                 cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
2941                 if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
2942                         cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
2943                         cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
2944                         if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
2945                             cmd == RAMROD_CMD_ID_ETH_HALT)
2946                                 comp++;
2947                 }
2948                 sw_cons = BNX2X_NEXT_RCQE(sw_cons);
2949         }
2950         return comp;
2951 }
2952
2953 static void cnic_chk_pkt_rings(struct cnic_local *cp)
2954 {
2955         u16 rx_cons, tx_cons;
2956         int comp = 0;
2957
2958         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
2959                 return;
2960
2961         rx_cons = *cp->rx_cons_ptr;
2962         tx_cons = *cp->tx_cons_ptr;
2963         if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
2964                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
2965                         comp = cnic_l2_completion(cp);
2966
2967                 cp->tx_cons = tx_cons;
2968                 cp->rx_cons = rx_cons;
2969
2970                 if (cp->udev)
2971                         uio_event_notify(&cp->udev->cnic_uinfo);
2972         }
2973         if (comp)
2974                 clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
2975 }
2976
2977 static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
2978 {
2979         struct cnic_local *cp = dev->cnic_priv;
2980         u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2981         int kcqe_cnt;
2982
2983         /* status block index must be read before reading other fields */
2984         rmb();
2985         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2986
2987         while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
2988
2989                 service_kcqes(dev, kcqe_cnt);
2990
2991                 /* Tell compiler that status_blk fields can change. */
2992                 barrier();
2993                 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2994                 /* status block index must be read first */
2995                 rmb();
2996                 cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2997         }
2998
2999         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
3000
3001         cnic_chk_pkt_rings(cp);
3002
3003         return status_idx;
3004 }
3005
3006 static int cnic_service_bnx2(void *data, void *status_blk)
3007 {
3008         struct cnic_dev *dev = data;
3009
3010         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
3011                 struct status_block *sblk = status_blk;
3012
3013                 return sblk->status_idx;
3014         }
3015
3016         return cnic_service_bnx2_queues(dev);
3017 }
3018
3019 static void cnic_service_bnx2_msix(struct work_struct *work)
3020 {
3021         struct cnic_local *cp = from_work(cp, work, cnic_irq_bh_work);
3022         struct cnic_dev *dev = cp->dev;
3023
3024         cp->last_status_idx = cnic_service_bnx2_queues(dev);
3025
3026         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
3027                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
3028 }
3029
3030 static void cnic_doirq(struct cnic_dev *dev)
3031 {
3032         struct cnic_local *cp = dev->cnic_priv;
3033
3034         if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
3035                 u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
3036
3037                 prefetch(cp->status_blk.gen);
3038                 prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
3039
3040                 queue_work(system_bh_wq, &cp->cnic_irq_bh_work);
3041         }
3042 }
3043
3044 static irqreturn_t cnic_irq(int irq, void *dev_instance)
3045 {
3046         struct cnic_dev *dev = dev_instance;
3047         struct cnic_local *cp = dev->cnic_priv;
3048
3049         if (cp->ack_int)
3050                 cp->ack_int(dev);
3051
3052         cnic_doirq(dev);
3053
3054         return IRQ_HANDLED;
3055 }
3056
3057 static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
3058                                       u16 index, u8 op, u8 update)
3059 {
3060         struct bnx2x *bp = netdev_priv(dev->netdev);
3061         u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp) * 32 +
3062                        COMMAND_REG_INT_ACK);
3063         struct igu_ack_register igu_ack;
3064
3065         igu_ack.status_block_index = index;
3066         igu_ack.sb_id_and_flags =
3067                         ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
3068                          (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
3069                          (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
3070                          (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
3071
3072         CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
3073 }
3074
3075 static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
3076                             u16 index, u8 op, u8 update)
3077 {
3078         struct igu_regular cmd_data;
3079         u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
3080
3081         cmd_data.sb_id_and_flags =
3082                 (index << IGU_REGULAR_SB_INDEX_SHIFT) |
3083                 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
3084                 (update << IGU_REGULAR_BUPDATE_SHIFT) |
3085                 (op << IGU_REGULAR_ENABLE_INT_SHIFT);
3086
3087
3088         CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
3089 }
3090
3091 static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
3092 {
3093         struct cnic_local *cp = dev->cnic_priv;
3094
3095         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
3096                            IGU_INT_DISABLE, 0);
3097 }
3098
3099 static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
3100 {
3101         struct cnic_local *cp = dev->cnic_priv;
3102
3103         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0,
3104                         IGU_INT_DISABLE, 0);
3105 }
3106
3107 static void cnic_arm_bnx2x_msix(struct cnic_dev *dev, u32 idx)
3108 {
3109         struct cnic_local *cp = dev->cnic_priv;
3110
3111         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, idx,
3112                            IGU_INT_ENABLE, 1);
3113 }
3114
3115 static void cnic_arm_bnx2x_e2_msix(struct cnic_dev *dev, u32 idx)
3116 {
3117         struct cnic_local *cp = dev->cnic_priv;
3118
3119         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, idx,
3120                         IGU_INT_ENABLE, 1);
3121 }
3122
3123 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
3124 {
3125         u32 last_status = *info->status_idx_ptr;
3126         int kcqe_cnt;
3127
3128         /* status block index must be read before reading the KCQ */
3129         rmb();
3130         while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
3131
3132                 service_kcqes(dev, kcqe_cnt);
3133
3134                 /* Tell compiler that sblk fields can change. */
3135                 barrier();
3136
3137                 last_status = *info->status_idx_ptr;
3138                 /* status block index must be read before reading the KCQ */
3139                 rmb();
3140         }
3141         return last_status;
3142 }
3143
3144 static void cnic_service_bnx2x_bh_work(struct work_struct *work)
3145 {
3146         struct cnic_local *cp = from_work(cp, work, cnic_irq_bh_work);
3147         struct cnic_dev *dev = cp->dev;
3148         struct bnx2x *bp = netdev_priv(dev->netdev);
3149         u32 status_idx, new_status_idx;
3150
3151         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
3152                 return;
3153
3154         while (1) {
3155                 status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
3156
3157                 CNIC_WR16(dev, cp->kcq1.io_addr,
3158                           cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
3159
3160                 if (!CNIC_SUPPORTS_FCOE(bp)) {
3161                         cp->arm_int(dev, status_idx);
3162                         break;
3163                 }
3164
3165                 new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
3166
3167                 if (new_status_idx != status_idx)
3168                         continue;
3169
3170                 CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
3171                           MAX_KCQ_IDX);
3172
3173                 cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
3174                                 status_idx, IGU_INT_ENABLE, 1);
3175
3176                 break;
3177         }
3178 }
3179
3180 static int cnic_service_bnx2x(void *data, void *status_blk)
3181 {
3182         struct cnic_dev *dev = data;
3183         struct cnic_local *cp = dev->cnic_priv;
3184
3185         if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
3186                 cnic_doirq(dev);
3187
3188         cnic_chk_pkt_rings(cp);
3189
3190         return 0;
3191 }
3192
3193 static void cnic_ulp_stop_one(struct cnic_local *cp, int if_type)
3194 {
3195         struct cnic_ulp_ops *ulp_ops;
3196
3197         if (if_type == CNIC_ULP_ISCSI)
3198                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
3199
3200         mutex_lock(&cnic_lock);
3201         ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3202                                             lockdep_is_held(&cnic_lock));
3203         if (!ulp_ops) {
3204                 mutex_unlock(&cnic_lock);
3205                 return;
3206         }
3207         set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3208         mutex_unlock(&cnic_lock);
3209
3210         if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3211                 ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
3212
3213         clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3214 }
3215
3216 static void cnic_ulp_stop(struct cnic_dev *dev)
3217 {
3218         struct cnic_local *cp = dev->cnic_priv;
3219         int if_type;
3220
3221         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++)
3222                 cnic_ulp_stop_one(cp, if_type);
3223 }
3224
3225 static void cnic_ulp_start(struct cnic_dev *dev)
3226 {
3227         struct cnic_local *cp = dev->cnic_priv;
3228         int if_type;
3229
3230         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
3231                 struct cnic_ulp_ops *ulp_ops;
3232
3233                 mutex_lock(&cnic_lock);
3234                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3235                                                     lockdep_is_held(&cnic_lock));
3236                 if (!ulp_ops || !ulp_ops->cnic_start) {
3237                         mutex_unlock(&cnic_lock);
3238                         continue;
3239                 }
3240                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3241                 mutex_unlock(&cnic_lock);
3242
3243                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3244                         ulp_ops->cnic_start(cp->ulp_handle[if_type]);
3245
3246                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3247         }
3248 }
3249
3250 static int cnic_copy_ulp_stats(struct cnic_dev *dev, int ulp_type)
3251 {
3252         struct cnic_local *cp = dev->cnic_priv;
3253         struct cnic_ulp_ops *ulp_ops;
3254         int rc;
3255
3256         mutex_lock(&cnic_lock);
3257         ulp_ops = rcu_dereference_protected(cp->ulp_ops[ulp_type],
3258                                             lockdep_is_held(&cnic_lock));
3259         if (ulp_ops && ulp_ops->cnic_get_stats)
3260                 rc = ulp_ops->cnic_get_stats(cp->ulp_handle[ulp_type]);
3261         else
3262                 rc = -ENODEV;
3263         mutex_unlock(&cnic_lock);
3264         return rc;
3265 }
3266
3267 static int cnic_ctl(void *data, struct cnic_ctl_info *info)
3268 {
3269         struct cnic_dev *dev = data;
3270         int ulp_type = CNIC_ULP_ISCSI;
3271
3272         switch (info->cmd) {
3273         case CNIC_CTL_STOP_CMD:
3274                 cnic_hold(dev);
3275
3276                 cnic_ulp_stop(dev);
3277                 cnic_stop_hw(dev);
3278
3279                 cnic_put(dev);
3280                 break;
3281         case CNIC_CTL_START_CMD:
3282                 cnic_hold(dev);
3283
3284                 if (!cnic_start_hw(dev))
3285                         cnic_ulp_start(dev);
3286
3287                 cnic_put(dev);
3288                 break;
3289         case CNIC_CTL_STOP_ISCSI_CMD: {
3290                 struct cnic_local *cp = dev->cnic_priv;
3291                 set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags);
3292                 queue_delayed_work(cnic_wq, &cp->delete_task, 0);
3293                 break;
3294         }
3295         case CNIC_CTL_COMPLETION_CMD: {
3296                 struct cnic_ctl_completion *comp = &info->data.comp;
3297                 u32 cid = BNX2X_SW_CID(comp->cid);
3298                 u32 l5_cid;
3299                 struct cnic_local *cp = dev->cnic_priv;
3300
3301                 if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
3302                         break;
3303
3304                 if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
3305                         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3306
3307                         if (unlikely(comp->error)) {
3308                                 set_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags);
3309                                 netdev_err(dev->netdev,
3310                                            "CID %x CFC delete comp error %x\n",
3311                                            cid, comp->error);
3312                         }
3313
3314                         ctx->wait_cond = 1;
3315                         wake_up(&ctx->waitq);
3316                 }
3317                 break;
3318         }
3319         case CNIC_CTL_FCOE_STATS_GET_CMD:
3320                 ulp_type = CNIC_ULP_FCOE;
3321                 fallthrough;
3322         case CNIC_CTL_ISCSI_STATS_GET_CMD:
3323                 cnic_hold(dev);
3324                 cnic_copy_ulp_stats(dev, ulp_type);
3325                 cnic_put(dev);
3326                 break;
3327
3328         default:
3329                 return -EINVAL;
3330         }
3331         return 0;
3332 }
3333
3334 static void cnic_ulp_init(struct cnic_dev *dev)
3335 {
3336         int i;
3337         struct cnic_local *cp = dev->cnic_priv;
3338
3339         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3340                 struct cnic_ulp_ops *ulp_ops;
3341
3342                 mutex_lock(&cnic_lock);
3343                 ulp_ops = cnic_ulp_tbl_prot(i);
3344                 if (!ulp_ops || !ulp_ops->cnic_init) {
3345                         mutex_unlock(&cnic_lock);
3346                         continue;
3347                 }
3348                 ulp_get(ulp_ops);
3349                 mutex_unlock(&cnic_lock);
3350
3351                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3352                         ulp_ops->cnic_init(dev);
3353
3354                 ulp_put(ulp_ops);
3355         }
3356 }
3357
3358 static void cnic_ulp_exit(struct cnic_dev *dev)
3359 {
3360         int i;
3361         struct cnic_local *cp = dev->cnic_priv;
3362
3363         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3364                 struct cnic_ulp_ops *ulp_ops;
3365
3366                 mutex_lock(&cnic_lock);
3367                 ulp_ops = cnic_ulp_tbl_prot(i);
3368                 if (!ulp_ops || !ulp_ops->cnic_exit) {
3369                         mutex_unlock(&cnic_lock);
3370                         continue;
3371                 }
3372                 ulp_get(ulp_ops);
3373                 mutex_unlock(&cnic_lock);
3374
3375                 if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3376                         ulp_ops->cnic_exit(dev);
3377
3378                 ulp_put(ulp_ops);
3379         }
3380 }
3381
3382 static int cnic_cm_offload_pg(struct cnic_sock *csk)
3383 {
3384         struct cnic_dev *dev = csk->dev;
3385         struct l4_kwq_offload_pg *l4kwqe;
3386         struct kwqe *wqes[1];
3387
3388         l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
3389         memset(l4kwqe, 0, sizeof(*l4kwqe));
3390         wqes[0] = (struct kwqe *) l4kwqe;
3391
3392         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
3393         l4kwqe->flags =
3394                 L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
3395         l4kwqe->l2hdr_nbytes = ETH_HLEN;
3396
3397         l4kwqe->da0 = csk->ha[0];
3398         l4kwqe->da1 = csk->ha[1];
3399         l4kwqe->da2 = csk->ha[2];
3400         l4kwqe->da3 = csk->ha[3];
3401         l4kwqe->da4 = csk->ha[4];
3402         l4kwqe->da5 = csk->ha[5];
3403
3404         l4kwqe->sa0 = dev->mac_addr[0];
3405         l4kwqe->sa1 = dev->mac_addr[1];
3406         l4kwqe->sa2 = dev->mac_addr[2];
3407         l4kwqe->sa3 = dev->mac_addr[3];
3408         l4kwqe->sa4 = dev->mac_addr[4];
3409         l4kwqe->sa5 = dev->mac_addr[5];
3410
3411         l4kwqe->etype = ETH_P_IP;
3412         l4kwqe->ipid_start = DEF_IPID_START;
3413         l4kwqe->host_opaque = csk->l5_cid;
3414
3415         if (csk->vlan_id) {
3416                 l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
3417                 l4kwqe->vlan_tag = csk->vlan_id;
3418                 l4kwqe->l2hdr_nbytes += 4;
3419         }
3420
3421         return dev->submit_kwqes(dev, wqes, 1);
3422 }
3423
3424 static int cnic_cm_update_pg(struct cnic_sock *csk)
3425 {
3426         struct cnic_dev *dev = csk->dev;
3427         struct l4_kwq_update_pg *l4kwqe;
3428         struct kwqe *wqes[1];
3429
3430         l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
3431         memset(l4kwqe, 0, sizeof(*l4kwqe));
3432         wqes[0] = (struct kwqe *) l4kwqe;
3433
3434         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
3435         l4kwqe->flags =
3436                 L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
3437         l4kwqe->pg_cid = csk->pg_cid;
3438
3439         l4kwqe->da0 = csk->ha[0];
3440         l4kwqe->da1 = csk->ha[1];
3441         l4kwqe->da2 = csk->ha[2];
3442         l4kwqe->da3 = csk->ha[3];
3443         l4kwqe->da4 = csk->ha[4];
3444         l4kwqe->da5 = csk->ha[5];
3445
3446         l4kwqe->pg_host_opaque = csk->l5_cid;
3447         l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
3448
3449         return dev->submit_kwqes(dev, wqes, 1);
3450 }
3451
3452 static int cnic_cm_upload_pg(struct cnic_sock *csk)
3453 {
3454         struct cnic_dev *dev = csk->dev;
3455         struct l4_kwq_upload *l4kwqe;
3456         struct kwqe *wqes[1];
3457
3458         l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
3459         memset(l4kwqe, 0, sizeof(*l4kwqe));
3460         wqes[0] = (struct kwqe *) l4kwqe;
3461
3462         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
3463         l4kwqe->flags =
3464                 L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
3465         l4kwqe->cid = csk->pg_cid;
3466
3467         return dev->submit_kwqes(dev, wqes, 1);
3468 }
3469
3470 static int cnic_cm_conn_req(struct cnic_sock *csk)
3471 {
3472         struct cnic_dev *dev = csk->dev;
3473         struct l4_kwq_connect_req1 *l4kwqe1;
3474         struct l4_kwq_connect_req2 *l4kwqe2;
3475         struct l4_kwq_connect_req3 *l4kwqe3;
3476         struct kwqe *wqes[3];
3477         u8 tcp_flags = 0;
3478         int num_wqes = 2;
3479
3480         l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
3481         l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
3482         l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
3483         memset(l4kwqe1, 0, sizeof(*l4kwqe1));
3484         memset(l4kwqe2, 0, sizeof(*l4kwqe2));
3485         memset(l4kwqe3, 0, sizeof(*l4kwqe3));
3486
3487         l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
3488         l4kwqe3->flags =
3489                 L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
3490         l4kwqe3->ka_timeout = csk->ka_timeout;
3491         l4kwqe3->ka_interval = csk->ka_interval;
3492         l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
3493         l4kwqe3->tos = csk->tos;
3494         l4kwqe3->ttl = csk->ttl;
3495         l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
3496         l4kwqe3->pmtu = csk->mtu;
3497         l4kwqe3->rcv_buf = csk->rcv_buf;
3498         l4kwqe3->snd_buf = csk->snd_buf;
3499         l4kwqe3->seed = csk->seed;
3500
3501         wqes[0] = (struct kwqe *) l4kwqe1;
3502         if (test_bit(SK_F_IPV6, &csk->flags)) {
3503                 wqes[1] = (struct kwqe *) l4kwqe2;
3504                 wqes[2] = (struct kwqe *) l4kwqe3;
3505                 num_wqes = 3;
3506
3507                 l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
3508                 l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
3509                 l4kwqe2->flags =
3510                         L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
3511                         L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
3512                 l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
3513                 l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
3514                 l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
3515                 l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
3516                 l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
3517                 l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
3518                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
3519                                sizeof(struct tcphdr);
3520         } else {
3521                 wqes[1] = (struct kwqe *) l4kwqe3;
3522                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
3523                                sizeof(struct tcphdr);
3524         }
3525
3526         l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
3527         l4kwqe1->flags =
3528                 (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
3529                  L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
3530         l4kwqe1->cid = csk->cid;
3531         l4kwqe1->pg_cid = csk->pg_cid;
3532         l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
3533         l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
3534         l4kwqe1->src_port = be16_to_cpu(csk->src_port);
3535         l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
3536         if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
3537                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
3538         if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
3539                 tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
3540         if (csk->tcp_flags & SK_TCP_NAGLE)
3541                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
3542         if (csk->tcp_flags & SK_TCP_TIMESTAMP)
3543                 tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
3544         if (csk->tcp_flags & SK_TCP_SACK)
3545                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
3546         if (csk->tcp_flags & SK_TCP_SEG_SCALING)
3547                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
3548
3549         l4kwqe1->tcp_flags = tcp_flags;
3550
3551         return dev->submit_kwqes(dev, wqes, num_wqes);
3552 }
3553
3554 static int cnic_cm_close_req(struct cnic_sock *csk)
3555 {
3556         struct cnic_dev *dev = csk->dev;
3557         struct l4_kwq_close_req *l4kwqe;
3558         struct kwqe *wqes[1];
3559
3560         l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
3561         memset(l4kwqe, 0, sizeof(*l4kwqe));
3562         wqes[0] = (struct kwqe *) l4kwqe;
3563
3564         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
3565         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
3566         l4kwqe->cid = csk->cid;
3567
3568         return dev->submit_kwqes(dev, wqes, 1);
3569 }
3570
3571 static int cnic_cm_abort_req(struct cnic_sock *csk)
3572 {
3573         struct cnic_dev *dev = csk->dev;
3574         struct l4_kwq_reset_req *l4kwqe;
3575         struct kwqe *wqes[1];
3576
3577         l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
3578         memset(l4kwqe, 0, sizeof(*l4kwqe));
3579         wqes[0] = (struct kwqe *) l4kwqe;
3580
3581         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
3582         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
3583         l4kwqe->cid = csk->cid;
3584
3585         return dev->submit_kwqes(dev, wqes, 1);
3586 }
3587
3588 static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
3589                           u32 l5_cid, struct cnic_sock **csk, void *context)
3590 {
3591         struct cnic_local *cp = dev->cnic_priv;
3592         struct cnic_sock *csk1;
3593
3594         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3595                 return -EINVAL;
3596
3597         if (cp->ctx_tbl) {
3598                 struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3599
3600                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3601                         return -EAGAIN;
3602         }
3603
3604         csk1 = &cp->csk_tbl[l5_cid];
3605         if (atomic_read(&csk1->ref_count))
3606                 return -EAGAIN;
3607
3608         if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
3609                 return -EBUSY;
3610
3611         csk1->dev = dev;
3612         csk1->cid = cid;
3613         csk1->l5_cid = l5_cid;
3614         csk1->ulp_type = ulp_type;
3615         csk1->context = context;
3616
3617         csk1->ka_timeout = DEF_KA_TIMEOUT;
3618         csk1->ka_interval = DEF_KA_INTERVAL;
3619         csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
3620         csk1->tos = DEF_TOS;
3621         csk1->ttl = DEF_TTL;
3622         csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
3623         csk1->rcv_buf = DEF_RCV_BUF;
3624         csk1->snd_buf = DEF_SND_BUF;
3625         csk1->seed = DEF_SEED;
3626         csk1->tcp_flags = 0;
3627
3628         *csk = csk1;
3629         return 0;
3630 }
3631
3632 static void cnic_cm_cleanup(struct cnic_sock *csk)
3633 {
3634         if (csk->src_port) {
3635                 struct cnic_dev *dev = csk->dev;
3636                 struct cnic_local *cp = dev->cnic_priv;
3637
3638                 cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
3639                 csk->src_port = 0;
3640         }
3641 }
3642
3643 static void cnic_close_conn(struct cnic_sock *csk)
3644 {
3645         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
3646                 cnic_cm_upload_pg(csk);
3647                 clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3648         }
3649         cnic_cm_cleanup(csk);
3650 }
3651
3652 static int cnic_cm_destroy(struct cnic_sock *csk)
3653 {
3654         if (!cnic_in_use(csk))
3655                 return -EINVAL;
3656
3657         csk_hold(csk);
3658         clear_bit(SK_F_INUSE, &csk->flags);
3659         smp_mb__after_atomic();
3660         while (atomic_read(&csk->ref_count) != 1)
3661                 msleep(1);
3662         cnic_cm_cleanup(csk);
3663
3664         csk->flags = 0;
3665         csk_put(csk);
3666         return 0;
3667 }
3668
3669 static inline u16 cnic_get_vlan(struct net_device *dev,
3670                                 struct net_device **vlan_dev)
3671 {
3672         if (is_vlan_dev(dev)) {
3673                 *vlan_dev = vlan_dev_real_dev(dev);
3674                 return vlan_dev_vlan_id(dev);
3675         }
3676         *vlan_dev = dev;
3677         return 0;
3678 }
3679
3680 static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
3681                              struct dst_entry **dst)
3682 {
3683 #if defined(CONFIG_INET)
3684         struct rtable *rt;
3685
3686         rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0,
3687                              RT_SCOPE_UNIVERSE);
3688         if (!IS_ERR(rt)) {
3689                 *dst = &rt->dst;
3690                 return 0;
3691         }
3692         return PTR_ERR(rt);
3693 #else
3694         return -ENETUNREACH;
3695 #endif
3696 }
3697
3698 static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
3699                              struct dst_entry **dst)
3700 {
3701 #if IS_ENABLED(CONFIG_IPV6)
3702         struct flowi6 fl6;
3703
3704         memset(&fl6, 0, sizeof(fl6));
3705         fl6.daddr = dst_addr->sin6_addr;
3706         if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
3707                 fl6.flowi6_oif = dst_addr->sin6_scope_id;
3708
3709         *dst = ip6_route_output(&init_net, NULL, &fl6);
3710         if ((*dst)->error) {
3711                 dst_release(*dst);
3712                 *dst = NULL;
3713                 return -ENETUNREACH;
3714         } else
3715                 return 0;
3716 #endif
3717
3718         return -ENETUNREACH;
3719 }
3720
3721 static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
3722                                            int ulp_type)
3723 {
3724         struct cnic_dev *dev = NULL;
3725         struct dst_entry *dst;
3726         struct net_device *netdev = NULL;
3727         int err = -ENETUNREACH;
3728
3729         if (dst_addr->sin_family == AF_INET)
3730                 err = cnic_get_v4_route(dst_addr, &dst);
3731         else if (dst_addr->sin_family == AF_INET6) {
3732                 struct sockaddr_in6 *dst_addr6 =
3733                         (struct sockaddr_in6 *) dst_addr;
3734
3735                 err = cnic_get_v6_route(dst_addr6, &dst);
3736         } else
3737                 return NULL;
3738
3739         if (err)
3740                 return NULL;
3741
3742         if (!dst->dev)
3743                 goto done;
3744
3745         cnic_get_vlan(dst->dev, &netdev);
3746
3747         dev = cnic_from_netdev(netdev);
3748
3749 done:
3750         dst_release(dst);
3751         if (dev)
3752                 cnic_put(dev);
3753         return dev;
3754 }
3755
3756 static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3757 {
3758         struct cnic_dev *dev = csk->dev;
3759         struct cnic_local *cp = dev->cnic_priv;
3760
3761         return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
3762 }
3763
3764 static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3765 {
3766         struct cnic_dev *dev = csk->dev;
3767         struct cnic_local *cp = dev->cnic_priv;
3768         int is_v6, rc = 0;
3769         struct dst_entry *dst = NULL;
3770         struct net_device *realdev;
3771         __be16 local_port;
3772         u32 port_id;
3773
3774         if (saddr->local.v6.sin6_family == AF_INET6 &&
3775             saddr->remote.v6.sin6_family == AF_INET6)
3776                 is_v6 = 1;
3777         else if (saddr->local.v4.sin_family == AF_INET &&
3778                  saddr->remote.v4.sin_family == AF_INET)
3779                 is_v6 = 0;
3780         else
3781                 return -EINVAL;
3782
3783         clear_bit(SK_F_IPV6, &csk->flags);
3784
3785         if (is_v6) {
3786                 set_bit(SK_F_IPV6, &csk->flags);
3787                 cnic_get_v6_route(&saddr->remote.v6, &dst);
3788
3789                 memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
3790                        sizeof(struct in6_addr));
3791                 csk->dst_port = saddr->remote.v6.sin6_port;
3792                 local_port = saddr->local.v6.sin6_port;
3793
3794         } else {
3795                 cnic_get_v4_route(&saddr->remote.v4, &dst);
3796
3797                 csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
3798                 csk->dst_port = saddr->remote.v4.sin_port;
3799                 local_port = saddr->local.v4.sin_port;
3800         }
3801
3802         csk->vlan_id = 0;
3803         csk->mtu = dev->netdev->mtu;
3804         if (dst && dst->dev) {
3805                 u16 vlan = cnic_get_vlan(dst->dev, &realdev);
3806                 if (realdev == dev->netdev) {
3807                         csk->vlan_id = vlan;
3808                         csk->mtu = dst_mtu(dst);
3809                 }
3810         }
3811
3812         port_id = be16_to_cpu(local_port);
3813         if (port_id >= CNIC_LOCAL_PORT_MIN &&
3814             port_id < CNIC_LOCAL_PORT_MAX) {
3815                 if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
3816                         port_id = 0;
3817         } else
3818                 port_id = 0;
3819
3820         if (!port_id) {
3821                 port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
3822                 if (port_id == -1) {
3823                         rc = -ENOMEM;
3824                         goto err_out;
3825                 }
3826                 local_port = cpu_to_be16(port_id);
3827         }
3828         csk->src_port = local_port;
3829
3830 err_out:
3831         dst_release(dst);
3832         return rc;
3833 }
3834
3835 static void cnic_init_csk_state(struct cnic_sock *csk)
3836 {
3837         csk->state = 0;
3838         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3839         clear_bit(SK_F_CLOSING, &csk->flags);
3840 }
3841
3842 static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3843 {
3844         struct cnic_local *cp = csk->dev->cnic_priv;
3845         int err = 0;
3846
3847         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
3848                 return -EOPNOTSUPP;
3849
3850         if (!cnic_in_use(csk))
3851                 return -EINVAL;
3852
3853         if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
3854                 return -EINVAL;
3855
3856         cnic_init_csk_state(csk);
3857
3858         err = cnic_get_route(csk, saddr);
3859         if (err)
3860                 goto err_out;
3861
3862         err = cnic_resolve_addr(csk, saddr);
3863         if (!err)
3864                 return 0;
3865
3866 err_out:
3867         clear_bit(SK_F_CONNECT_START, &csk->flags);
3868         return err;
3869 }
3870
3871 static int cnic_cm_abort(struct cnic_sock *csk)
3872 {
3873         struct cnic_local *cp = csk->dev->cnic_priv;
3874         u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
3875
3876         if (!cnic_in_use(csk))
3877                 return -EINVAL;
3878
3879         if (cnic_abort_prep(csk))
3880                 return cnic_cm_abort_req(csk);
3881
3882         /* Getting here means that we haven't started connect, or
3883          * connect was not successful, or it has been reset by the target.
3884          */
3885
3886         cp->close_conn(csk, opcode);
3887         if (csk->state != opcode) {
3888                 /* Wait for remote reset sequence to complete */
3889                 while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3890                         msleep(1);
3891
3892                 return -EALREADY;
3893         }
3894
3895         return 0;
3896 }
3897
3898 static int cnic_cm_close(struct cnic_sock *csk)
3899 {
3900         if (!cnic_in_use(csk))
3901                 return -EINVAL;
3902
3903         if (cnic_close_prep(csk)) {
3904                 csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
3905                 return cnic_cm_close_req(csk);
3906         } else {
3907                 /* Wait for remote reset sequence to complete */
3908                 while (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3909                         msleep(1);
3910
3911                 return -EALREADY;
3912         }
3913         return 0;
3914 }
3915
3916 static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
3917                            u8 opcode)
3918 {
3919         struct cnic_ulp_ops *ulp_ops;
3920         int ulp_type = csk->ulp_type;
3921
3922         rcu_read_lock();
3923         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
3924         if (ulp_ops) {
3925                 if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
3926                         ulp_ops->cm_connect_complete(csk);
3927                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3928                         ulp_ops->cm_close_complete(csk);
3929                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
3930                         ulp_ops->cm_remote_abort(csk);
3931                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
3932                         ulp_ops->cm_abort_complete(csk);
3933                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
3934                         ulp_ops->cm_remote_close(csk);
3935         }
3936         rcu_read_unlock();
3937 }
3938
3939 static int cnic_cm_set_pg(struct cnic_sock *csk)
3940 {
3941         if (cnic_offld_prep(csk)) {
3942                 if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3943                         cnic_cm_update_pg(csk);
3944                 else
3945                         cnic_cm_offload_pg(csk);
3946         }
3947         return 0;
3948 }
3949
3950 static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
3951 {
3952         struct cnic_local *cp = dev->cnic_priv;
3953         u32 l5_cid = kcqe->pg_host_opaque;
3954         u8 opcode = kcqe->op_code;
3955         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
3956
3957         csk_hold(csk);
3958         if (!cnic_in_use(csk))
3959                 goto done;
3960
3961         if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3962                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3963                 goto done;
3964         }
3965         /* Possible PG kcqe status:  SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
3966         if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
3967                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3968                 cnic_cm_upcall(cp, csk,
3969                                L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3970                 goto done;
3971         }
3972
3973         csk->pg_cid = kcqe->pg_cid;
3974         set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3975         cnic_cm_conn_req(csk);
3976
3977 done:
3978         csk_put(csk);
3979 }
3980
3981 static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
3982 {
3983         struct cnic_local *cp = dev->cnic_priv;
3984         struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
3985         u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
3986         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3987
3988         ctx->timestamp = jiffies;
3989         ctx->wait_cond = 1;
3990         wake_up(&ctx->waitq);
3991 }
3992
3993 static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
3994 {
3995         struct cnic_local *cp = dev->cnic_priv;
3996         struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
3997         u8 opcode = l4kcqe->op_code;
3998         u32 l5_cid;
3999         struct cnic_sock *csk;
4000
4001         if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
4002                 cnic_process_fcoe_term_conn(dev, kcqe);
4003                 return;
4004         }
4005         if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
4006             opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
4007                 cnic_cm_process_offld_pg(dev, l4kcqe);
4008                 return;
4009         }
4010
4011         l5_cid = l4kcqe->conn_id;
4012         if (opcode & 0x80)
4013                 l5_cid = l4kcqe->cid;
4014         if (l5_cid >= MAX_CM_SK_TBL_SZ)
4015                 return;
4016
4017         csk = &cp->csk_tbl[l5_cid];
4018         csk_hold(csk);
4019
4020         if (!cnic_in_use(csk)) {
4021                 csk_put(csk);
4022                 return;
4023         }
4024
4025         switch (opcode) {
4026         case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
4027                 if (l4kcqe->status != 0) {
4028                         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
4029                         cnic_cm_upcall(cp, csk,
4030                                        L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
4031                 }
4032                 break;
4033         case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
4034                 if (l4kcqe->status == 0)
4035                         set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
4036                 else if (l4kcqe->status ==
4037                          L4_KCQE_COMPLETION_STATUS_PARITY_ERROR)
4038                         set_bit(SK_F_HW_ERR, &csk->flags);
4039
4040                 smp_mb__before_atomic();
4041                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
4042                 cnic_cm_upcall(cp, csk, opcode);
4043                 break;
4044
4045         case L5CM_RAMROD_CMD_ID_CLOSE: {
4046                 struct iscsi_kcqe *l5kcqe = (struct iscsi_kcqe *) kcqe;
4047
4048                 if (l4kcqe->status == 0 && l5kcqe->completion_status == 0)
4049                         break;
4050
4051                 netdev_warn(dev->netdev, "RAMROD CLOSE compl with status 0x%x completion status 0x%x\n",
4052                             l4kcqe->status, l5kcqe->completion_status);
4053                 opcode = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
4054         }
4055                 fallthrough;
4056         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
4057         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
4058         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
4059         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
4060         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
4061                 if (l4kcqe->status == L4_KCQE_COMPLETION_STATUS_PARITY_ERROR)
4062                         set_bit(SK_F_HW_ERR, &csk->flags);
4063
4064                 cp->close_conn(csk, opcode);
4065                 break;
4066
4067         case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
4068                 /* after we already sent CLOSE_REQ */
4069                 if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) &&
4070                     !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags) &&
4071                     csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
4072                         cp->close_conn(csk, L4_KCQE_OPCODE_VALUE_RESET_COMP);
4073                 else
4074                         cnic_cm_upcall(cp, csk, opcode);
4075                 break;
4076         }
4077         csk_put(csk);
4078 }
4079
4080 static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
4081 {
4082         struct cnic_dev *dev = data;
4083         int i;
4084
4085         for (i = 0; i < num; i++)
4086                 cnic_cm_process_kcqe(dev, kcqe[i]);
4087 }
4088
4089 static struct cnic_ulp_ops cm_ulp_ops = {
4090         .indicate_kcqes         = cnic_cm_indicate_kcqe,
4091 };
4092
4093 static void cnic_cm_free_mem(struct cnic_dev *dev)
4094 {
4095         struct cnic_local *cp = dev->cnic_priv;
4096
4097         kvfree(cp->csk_tbl);
4098         cp->csk_tbl = NULL;
4099         cnic_free_id_tbl(&cp->csk_port_tbl);
4100 }
4101
4102 static int cnic_cm_alloc_mem(struct cnic_dev *dev)
4103 {
4104         struct cnic_local *cp = dev->cnic_priv;
4105         u32 port_id;
4106         int i;
4107
4108         cp->csk_tbl = kvcalloc(MAX_CM_SK_TBL_SZ, sizeof(struct cnic_sock),
4109                                GFP_KERNEL);
4110         if (!cp->csk_tbl)
4111                 return -ENOMEM;
4112
4113         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++)
4114                 atomic_set(&cp->csk_tbl[i].ref_count, 0);
4115
4116         port_id = get_random_u32_below(CNIC_LOCAL_PORT_RANGE);
4117         if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
4118                              CNIC_LOCAL_PORT_MIN, port_id)) {
4119                 cnic_cm_free_mem(dev);
4120                 return -ENOMEM;
4121         }
4122         return 0;
4123 }
4124
4125 static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
4126 {
4127         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
4128                 /* Unsolicited RESET_COMP or RESET_RECEIVED */
4129                 opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
4130                 csk->state = opcode;
4131         }
4132
4133         /* 1. If event opcode matches the expected event in csk->state
4134          * 2. If the expected event is CLOSE_COMP or RESET_COMP, we accept any
4135          *    event
4136          * 3. If the expected event is 0, meaning the connection was never
4137          *    never established, we accept the opcode from cm_abort.
4138          */
4139         if (opcode == csk->state || csk->state == 0 ||
4140             csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP ||
4141             csk->state == L4_KCQE_OPCODE_VALUE_RESET_COMP) {
4142                 if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
4143                         if (csk->state == 0)
4144                                 csk->state = opcode;
4145                         return 1;
4146                 }
4147         }
4148         return 0;
4149 }
4150
4151 static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
4152 {
4153         struct cnic_dev *dev = csk->dev;
4154         struct cnic_local *cp = dev->cnic_priv;
4155
4156         if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
4157                 cnic_cm_upcall(cp, csk, opcode);
4158                 return;
4159         }
4160
4161         clear_bit(SK_F_CONNECT_START, &csk->flags);
4162         cnic_close_conn(csk);
4163         csk->state = opcode;
4164         cnic_cm_upcall(cp, csk, opcode);
4165 }
4166
4167 static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
4168 {
4169 }
4170
4171 static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
4172 {
4173         u32 seed;
4174
4175         seed = get_random_u32();
4176         cnic_ctx_wr(dev, 45, 0, seed);
4177         return 0;
4178 }
4179
4180 static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
4181 {
4182         struct cnic_dev *dev = csk->dev;
4183         struct cnic_local *cp = dev->cnic_priv;
4184         struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
4185         union l5cm_specific_data l5_data;
4186         u32 cmd = 0;
4187         int close_complete = 0;
4188
4189         switch (opcode) {
4190         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
4191         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
4192         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
4193                 if (cnic_ready_to_close(csk, opcode)) {
4194                         if (test_bit(SK_F_HW_ERR, &csk->flags))
4195                                 close_complete = 1;
4196                         else if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
4197                                 cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
4198                         else
4199                                 close_complete = 1;
4200                 }
4201                 break;
4202         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
4203                 cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
4204                 break;
4205         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
4206                 close_complete = 1;
4207                 break;
4208         }
4209         if (cmd) {
4210                 memset(&l5_data, 0, sizeof(l5_data));
4211
4212                 cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
4213                                     &l5_data);
4214         } else if (close_complete) {
4215                 ctx->timestamp = jiffies;
4216                 cnic_close_conn(csk);
4217                 cnic_cm_upcall(cp, csk, csk->state);
4218         }
4219 }
4220
4221 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
4222 {
4223         struct cnic_local *cp = dev->cnic_priv;
4224
4225         if (!cp->ctx_tbl)
4226                 return;
4227
4228         if (!netif_running(dev->netdev))
4229                 return;
4230
4231         cnic_bnx2x_delete_wait(dev, 0);
4232
4233         cancel_delayed_work(&cp->delete_task);
4234         flush_workqueue(cnic_wq);
4235
4236         if (atomic_read(&cp->iscsi_conn) != 0)
4237                 netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
4238                             atomic_read(&cp->iscsi_conn));
4239 }
4240
4241 static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
4242 {
4243         struct bnx2x *bp = netdev_priv(dev->netdev);
4244         u32 pfid = bp->pfid;
4245         u32 port = BP_PORT(bp);
4246
4247         cnic_init_bnx2x_mac(dev);
4248         cnic_bnx2x_set_tcp_options(dev, 0, 1);
4249
4250         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
4251                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
4252
4253         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4254                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
4255         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4256                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
4257                 DEF_MAX_DA_COUNT);
4258
4259         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4260                  XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
4261         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4262                  XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
4263         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
4264                  XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
4265         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
4266                 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
4267
4268         CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
4269                 DEF_MAX_CWND);
4270         return 0;
4271 }
4272
4273 static void cnic_delete_task(struct work_struct *work)
4274 {
4275         struct cnic_local *cp;
4276         struct cnic_dev *dev;
4277         u32 i;
4278         int need_resched = 0;
4279
4280         cp = container_of(work, struct cnic_local, delete_task.work);
4281         dev = cp->dev;
4282
4283         if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) {
4284                 struct drv_ctl_info info;
4285
4286                 cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI);
4287
4288                 memset(&info, 0, sizeof(struct drv_ctl_info));
4289                 info.cmd = DRV_CTL_ISCSI_STOPPED_CMD;
4290                 cp->ethdev->drv_ctl(dev->netdev, &info);
4291         }
4292
4293         for (i = 0; i < cp->max_cid_space; i++) {
4294                 struct cnic_context *ctx = &cp->ctx_tbl[i];
4295                 int err;
4296
4297                 if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
4298                     !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4299                         continue;
4300
4301                 if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
4302                         need_resched = 1;
4303                         continue;
4304                 }
4305
4306                 if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4307                         continue;
4308
4309                 err = cnic_bnx2x_destroy_ramrod(dev, i);
4310
4311                 cnic_free_bnx2x_conn_resc(dev, i);
4312                 if (!err) {
4313                         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
4314                                 atomic_dec(&cp->iscsi_conn);
4315
4316                         clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
4317                 }
4318         }
4319
4320         if (need_resched)
4321                 queue_delayed_work(cnic_wq, &cp->delete_task,
4322                                    msecs_to_jiffies(10));
4323
4324 }
4325
4326 static int cnic_cm_open(struct cnic_dev *dev)
4327 {
4328         struct cnic_local *cp = dev->cnic_priv;
4329         int err;
4330
4331         err = cnic_cm_alloc_mem(dev);
4332         if (err)
4333                 return err;
4334
4335         err = cp->start_cm(dev);
4336
4337         if (err)
4338                 goto err_out;
4339
4340         INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
4341
4342         dev->cm_create = cnic_cm_create;
4343         dev->cm_destroy = cnic_cm_destroy;
4344         dev->cm_connect = cnic_cm_connect;
4345         dev->cm_abort = cnic_cm_abort;
4346         dev->cm_close = cnic_cm_close;
4347         dev->cm_select_dev = cnic_cm_select_dev;
4348
4349         cp->ulp_handle[CNIC_ULP_L4] = dev;
4350         rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
4351         return 0;
4352
4353 err_out:
4354         cnic_cm_free_mem(dev);
4355         return err;
4356 }
4357
4358 static int cnic_cm_shutdown(struct cnic_dev *dev)
4359 {
4360         struct cnic_local *cp = dev->cnic_priv;
4361         int i;
4362
4363         if (!cp->csk_tbl)
4364                 return 0;
4365
4366         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
4367                 struct cnic_sock *csk = &cp->csk_tbl[i];
4368
4369                 clear_bit(SK_F_INUSE, &csk->flags);
4370                 cnic_cm_cleanup(csk);
4371         }
4372         cnic_cm_free_mem(dev);
4373
4374         return 0;
4375 }
4376
4377 static void cnic_init_context(struct cnic_dev *dev, u32 cid)
4378 {
4379         u32 cid_addr;
4380         int i;
4381
4382         cid_addr = GET_CID_ADDR(cid);
4383
4384         for (i = 0; i < CTX_SIZE; i += 4)
4385                 cnic_ctx_wr(dev, cid_addr, i, 0);
4386 }
4387
4388 static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
4389 {
4390         struct cnic_local *cp = dev->cnic_priv;
4391         int ret = 0, i;
4392         u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
4393
4394         if (BNX2_CHIP(cp) != BNX2_CHIP_5709)
4395                 return 0;
4396
4397         for (i = 0; i < cp->ctx_blks; i++) {
4398                 int j;
4399                 u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
4400                 u32 val;
4401
4402                 memset(cp->ctx_arr[i].ctx, 0, CNIC_PAGE_SIZE);
4403
4404                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
4405                         (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
4406                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
4407                         (u64) cp->ctx_arr[i].mapping >> 32);
4408                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
4409                         BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
4410                 for (j = 0; j < 10; j++) {
4411
4412                         val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
4413                         if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
4414                                 break;
4415                         udelay(5);
4416                 }
4417                 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
4418                         ret = -EBUSY;
4419                         break;
4420                 }
4421         }
4422         return ret;
4423 }
4424
4425 static void cnic_free_irq(struct cnic_dev *dev)
4426 {
4427         struct cnic_local *cp = dev->cnic_priv;
4428         struct cnic_eth_dev *ethdev = cp->ethdev;
4429
4430         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4431                 cp->disable_int_sync(dev);
4432                 cancel_work_sync(&cp->cnic_irq_bh_work);
4433                 free_irq(ethdev->irq_arr[0].vector, dev);
4434         }
4435 }
4436
4437 static int cnic_request_irq(struct cnic_dev *dev)
4438 {
4439         struct cnic_local *cp = dev->cnic_priv;
4440         struct cnic_eth_dev *ethdev = cp->ethdev;
4441         int err;
4442
4443         err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
4444         if (err)
4445                 disable_work_sync(&cp->cnic_irq_bh_work);
4446
4447         return err;
4448 }
4449
4450 static int cnic_init_bnx2_irq(struct cnic_dev *dev)
4451 {
4452         struct cnic_local *cp = dev->cnic_priv;
4453         struct cnic_eth_dev *ethdev = cp->ethdev;
4454
4455         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4456                 int err, i = 0;
4457                 int sblk_num = cp->status_blk_num;
4458                 u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
4459                            BNX2_HC_SB_CONFIG_1;
4460
4461                 CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
4462
4463                 CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
4464                 CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
4465                 CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
4466
4467                 cp->last_status_idx = cp->status_blk.bnx2->status_idx;
4468                 INIT_WORK(&cp->cnic_irq_bh_work, cnic_service_bnx2_msix);
4469                 err = cnic_request_irq(dev);
4470                 if (err)
4471                         return err;
4472
4473                 while (cp->status_blk.bnx2->status_completion_producer_index &&
4474                        i < 10) {
4475                         CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
4476                                 1 << (11 + sblk_num));
4477                         udelay(10);
4478                         i++;
4479                         barrier();
4480                 }
4481                 if (cp->status_blk.bnx2->status_completion_producer_index) {
4482                         cnic_free_irq(dev);
4483                         goto failed;
4484                 }
4485
4486         } else {
4487                 struct status_block *sblk = cp->status_blk.gen;
4488                 u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
4489                 int i = 0;
4490
4491                 while (sblk->status_completion_producer_index && i < 10) {
4492                         CNIC_WR(dev, BNX2_HC_COMMAND,
4493                                 hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
4494                         udelay(10);
4495                         i++;
4496                         barrier();
4497                 }
4498                 if (sblk->status_completion_producer_index)
4499                         goto failed;
4500
4501         }
4502         return 0;
4503
4504 failed:
4505         netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
4506         return -EBUSY;
4507 }
4508
4509 static void cnic_enable_bnx2_int(struct cnic_dev *dev)
4510 {
4511         struct cnic_local *cp = dev->cnic_priv;
4512         struct cnic_eth_dev *ethdev = cp->ethdev;
4513
4514         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4515                 return;
4516
4517         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4518                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
4519 }
4520
4521 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
4522 {
4523         struct cnic_local *cp = dev->cnic_priv;
4524         struct cnic_eth_dev *ethdev = cp->ethdev;
4525
4526         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4527                 return;
4528
4529         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4530                 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4531         CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
4532         synchronize_irq(ethdev->irq_arr[0].vector);
4533 }
4534
4535 static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
4536 {
4537         struct cnic_local *cp = dev->cnic_priv;
4538         struct cnic_eth_dev *ethdev = cp->ethdev;
4539         struct cnic_uio_dev *udev = cp->udev;
4540         u32 cid_addr, tx_cid, sb_id;
4541         u32 val, offset0, offset1, offset2, offset3;
4542         int i;
4543         struct bnx2_tx_bd *txbd;
4544         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4545         struct status_block *s_blk = cp->status_blk.gen;
4546
4547         sb_id = cp->status_blk_num;
4548         tx_cid = 20;
4549         cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
4550         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4551                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4552
4553                 tx_cid = TX_TSS_CID + sb_id - 1;
4554                 CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
4555                         (TX_TSS_CID << 7));
4556                 cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
4557         }
4558         cp->tx_cons = *cp->tx_cons_ptr;
4559
4560         cid_addr = GET_CID_ADDR(tx_cid);
4561         if (BNX2_CHIP(cp) == BNX2_CHIP_5709) {
4562                 u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
4563
4564                 for (i = 0; i < PHY_CTX_SIZE; i += 4)
4565                         cnic_ctx_wr(dev, cid_addr2, i, 0);
4566
4567                 offset0 = BNX2_L2CTX_TYPE_XI;
4568                 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
4569                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
4570                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
4571         } else {
4572                 cnic_init_context(dev, tx_cid);
4573                 cnic_init_context(dev, tx_cid + 1);
4574
4575                 offset0 = BNX2_L2CTX_TYPE;
4576                 offset1 = BNX2_L2CTX_CMD_TYPE;
4577                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
4578                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
4579         }
4580         val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
4581         cnic_ctx_wr(dev, cid_addr, offset0, val);
4582
4583         val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
4584         cnic_ctx_wr(dev, cid_addr, offset1, val);
4585
4586         txbd = udev->l2_ring;
4587
4588         buf_map = udev->l2_buf_map;
4589         for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i++, txbd++) {
4590                 txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
4591                 txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4592         }
4593         val = (u64) ring_map >> 32;
4594         cnic_ctx_wr(dev, cid_addr, offset2, val);
4595         txbd->tx_bd_haddr_hi = val;
4596
4597         val = (u64) ring_map & 0xffffffff;
4598         cnic_ctx_wr(dev, cid_addr, offset3, val);
4599         txbd->tx_bd_haddr_lo = val;
4600 }
4601
4602 static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
4603 {
4604         struct cnic_local *cp = dev->cnic_priv;
4605         struct cnic_eth_dev *ethdev = cp->ethdev;
4606         struct cnic_uio_dev *udev = cp->udev;
4607         u32 cid_addr, sb_id, val, coal_reg, coal_val;
4608         int i;
4609         struct bnx2_rx_bd *rxbd;
4610         struct status_block *s_blk = cp->status_blk.gen;
4611         dma_addr_t ring_map = udev->l2_ring_map;
4612
4613         sb_id = cp->status_blk_num;
4614         cnic_init_context(dev, 2);
4615         cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
4616         coal_reg = BNX2_HC_COMMAND;
4617         coal_val = CNIC_RD(dev, coal_reg);
4618         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4619                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4620
4621                 cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
4622                 coal_reg = BNX2_HC_COALESCE_NOW;
4623                 coal_val = 1 << (11 + sb_id);
4624         }
4625         i = 0;
4626         while (!(*cp->rx_cons_ptr != 0) && i < 10) {
4627                 CNIC_WR(dev, coal_reg, coal_val);
4628                 udelay(10);
4629                 i++;
4630                 barrier();
4631         }
4632         cp->rx_cons = *cp->rx_cons_ptr;
4633
4634         cid_addr = GET_CID_ADDR(2);
4635         val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4636               BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4637         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
4638
4639         if (sb_id == 0)
4640                 val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
4641         else
4642                 val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
4643         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
4644
4645         rxbd = udev->l2_ring + CNIC_PAGE_SIZE;
4646         for (i = 0; i < BNX2_MAX_RX_DESC_CNT; i++, rxbd++) {
4647                 dma_addr_t buf_map;
4648                 int n = (i % cp->l2_rx_ring_size) + 1;
4649
4650                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4651                 rxbd->rx_bd_len = cp->l2_single_buf_size;
4652                 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
4653                 rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
4654                 rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4655         }
4656         val = (u64) (ring_map + CNIC_PAGE_SIZE) >> 32;
4657         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
4658         rxbd->rx_bd_haddr_hi = val;
4659
4660         val = (u64) (ring_map + CNIC_PAGE_SIZE) & 0xffffffff;
4661         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
4662         rxbd->rx_bd_haddr_lo = val;
4663
4664         val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
4665         cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
4666 }
4667
4668 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
4669 {
4670         struct kwqe *wqes[1], l2kwqe;
4671
4672         memset(&l2kwqe, 0, sizeof(l2kwqe));
4673         wqes[0] = &l2kwqe;
4674         l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
4675                               (L2_KWQE_OPCODE_VALUE_FLUSH <<
4676                                KWQE_OPCODE_SHIFT) | 2;
4677         dev->submit_kwqes(dev, wqes, 1);
4678 }
4679
4680 static void cnic_set_bnx2_mac(struct cnic_dev *dev)
4681 {
4682         struct cnic_local *cp = dev->cnic_priv;
4683         u32 val;
4684
4685         val = cp->func << 2;
4686
4687         cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
4688
4689         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4690                               BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
4691         dev->mac_addr[0] = (u8) (val >> 8);
4692         dev->mac_addr[1] = (u8) val;
4693
4694         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
4695
4696         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4697                               BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
4698         dev->mac_addr[2] = (u8) (val >> 24);
4699         dev->mac_addr[3] = (u8) (val >> 16);
4700         dev->mac_addr[4] = (u8) (val >> 8);
4701         dev->mac_addr[5] = (u8) val;
4702
4703         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
4704
4705         val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
4706         if (BNX2_CHIP(cp) != BNX2_CHIP_5709)
4707                 val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
4708
4709         CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
4710         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
4711         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
4712 }
4713
4714 static int cnic_start_bnx2_hw(struct cnic_dev *dev)
4715 {
4716         struct cnic_local *cp = dev->cnic_priv;
4717         struct cnic_eth_dev *ethdev = cp->ethdev;
4718         struct status_block *sblk = cp->status_blk.gen;
4719         u32 val, kcq_cid_addr, kwq_cid_addr;
4720         int err;
4721
4722         cnic_set_bnx2_mac(dev);
4723
4724         val = CNIC_RD(dev, BNX2_MQ_CONFIG);
4725         val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4726         if (CNIC_PAGE_BITS > 12)
4727                 val |= (12 - 8)  << 4;
4728         else
4729                 val |= (CNIC_PAGE_BITS - 8)  << 4;
4730
4731         CNIC_WR(dev, BNX2_MQ_CONFIG, val);
4732
4733         CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
4734         CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
4735         CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
4736
4737         err = cnic_setup_5709_context(dev, 1);
4738         if (err)
4739                 return err;
4740
4741         cnic_init_context(dev, KWQ_CID);
4742         cnic_init_context(dev, KCQ_CID);
4743
4744         kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
4745         cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
4746
4747         cp->max_kwq_idx = MAX_KWQ_IDX;
4748         cp->kwq_prod_idx = 0;
4749         cp->kwq_con_idx = 0;
4750         set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
4751
4752         if (BNX2_CHIP(cp) == BNX2_CHIP_5706 || BNX2_CHIP(cp) == BNX2_CHIP_5708)
4753                 cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
4754         else
4755                 cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
4756
4757         /* Initialize the kernel work queue context. */
4758         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4759               (CNIC_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4760         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
4761
4762         val = (CNIC_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
4763         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4764
4765         val = ((CNIC_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
4766         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4767
4768         val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
4769         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4770
4771         val = (u32) cp->kwq_info.pgtbl_map;
4772         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4773
4774         kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
4775         cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
4776
4777         cp->kcq1.sw_prod_idx = 0;
4778         cp->kcq1.hw_prod_idx_ptr =
4779                 &sblk->status_completion_producer_index;
4780
4781         cp->kcq1.status_idx_ptr = &sblk->status_idx;
4782
4783         /* Initialize the kernel complete queue context. */
4784         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4785               (CNIC_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4786         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
4787
4788         val = (CNIC_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
4789         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4790
4791         val = ((CNIC_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
4792         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4793
4794         val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
4795         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4796
4797         val = (u32) cp->kcq1.dma.pgtbl_map;
4798         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4799
4800         cp->int_num = 0;
4801         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4802                 struct status_block_msix *msblk = cp->status_blk.bnx2;
4803                 u32 sb_id = cp->status_blk_num;
4804                 u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
4805
4806                 cp->kcq1.hw_prod_idx_ptr =
4807                         &msblk->status_completion_producer_index;
4808                 cp->kcq1.status_idx_ptr = &msblk->status_idx;
4809                 cp->kwq_con_idx_ptr = &msblk->status_cmd_consumer_index;
4810                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
4811                 cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4812                 cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4813         }
4814
4815         /* Enable Commnad Scheduler notification when we write to the
4816          * host producer index of the kernel contexts. */
4817         CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
4818
4819         /* Enable Command Scheduler notification when we write to either
4820          * the Send Queue or Receive Queue producer indexes of the kernel
4821          * bypass contexts. */
4822         CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
4823         CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
4824
4825         /* Notify COM when the driver post an application buffer. */
4826         CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
4827
4828         /* Set the CP and COM doorbells.  These two processors polls the
4829          * doorbell for a non zero value before running.  This must be done
4830          * after setting up the kernel queue contexts. */
4831         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
4832         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
4833
4834         cnic_init_bnx2_tx_ring(dev);
4835         cnic_init_bnx2_rx_ring(dev);
4836
4837         err = cnic_init_bnx2_irq(dev);
4838         if (err) {
4839                 netdev_err(dev->netdev, "cnic_init_irq failed\n");
4840                 cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
4841                 cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
4842                 return err;
4843         }
4844
4845         ethdev->drv_state |= CNIC_DRV_STATE_HANDLES_IRQ;
4846
4847         return 0;
4848 }
4849
4850 static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
4851 {
4852         struct cnic_local *cp = dev->cnic_priv;
4853         struct cnic_eth_dev *ethdev = cp->ethdev;
4854         u32 start_offset = ethdev->ctx_tbl_offset;
4855         int i;
4856
4857         for (i = 0; i < cp->ctx_blks; i++) {
4858                 struct cnic_ctx *ctx = &cp->ctx_arr[i];
4859                 dma_addr_t map = ctx->mapping;
4860
4861                 if (cp->ctx_align) {
4862                         unsigned long mask = cp->ctx_align - 1;
4863
4864                         map = (map + mask) & ~mask;
4865                 }
4866
4867                 cnic_ctx_tbl_wr(dev, start_offset + i, map);
4868         }
4869 }
4870
4871 static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
4872 {
4873         struct cnic_local *cp = dev->cnic_priv;
4874         struct cnic_eth_dev *ethdev = cp->ethdev;
4875         int err = 0;
4876
4877         INIT_WORK(&cp->cnic_irq_bh_work, cnic_service_bnx2x_bh_work);
4878         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
4879                 err = cnic_request_irq(dev);
4880
4881         return err;
4882 }
4883
4884 static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
4885                                                 u16 sb_id, u8 sb_index,
4886                                                 u8 disable)
4887 {
4888         struct bnx2x *bp = netdev_priv(dev->netdev);
4889
4890         u32 addr = BAR_CSTRORM_INTMEM +
4891                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4892                         offsetof(struct hc_status_block_data_e1x, index_data) +
4893                         sizeof(struct hc_index_data)*sb_index +
4894                         offsetof(struct hc_index_data, flags);
4895         u16 flags = CNIC_RD16(dev, addr);
4896         /* clear and set */
4897         flags &= ~HC_INDEX_DATA_HC_ENABLED;
4898         flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
4899                   HC_INDEX_DATA_HC_ENABLED);
4900         CNIC_WR16(dev, addr, flags);
4901 }
4902
4903 static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
4904 {
4905         struct cnic_local *cp = dev->cnic_priv;
4906         struct bnx2x *bp = netdev_priv(dev->netdev);
4907         u8 sb_id = cp->status_blk_num;
4908
4909         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4910                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4911                         offsetof(struct hc_status_block_data_e1x, index_data) +
4912                         sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
4913                         offsetof(struct hc_index_data, timeout), 64 / 4);
4914         cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
4915 }
4916
4917 static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
4918 {
4919 }
4920
4921 static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
4922                                     struct client_init_ramrod_data *data)
4923 {
4924         struct cnic_local *cp = dev->cnic_priv;
4925         struct bnx2x *bp = netdev_priv(dev->netdev);
4926         struct cnic_uio_dev *udev = cp->udev;
4927         union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
4928         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4929         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4930         int i;
4931         u32 cli = cp->ethdev->iscsi_l2_client_id;
4932         u32 val;
4933
4934         memset(txbd, 0, CNIC_PAGE_SIZE);
4935
4936         buf_map = udev->l2_buf_map;
4937         for (i = 0; i < BNX2_MAX_TX_DESC_CNT; i += 3, txbd += 3) {
4938                 struct eth_tx_start_bd *start_bd = &txbd->start_bd;
4939                 struct eth_tx_parse_bd_e1x *pbd_e1x =
4940                         &((txbd + 1)->parse_bd_e1x);
4941                 struct eth_tx_parse_bd_e2 *pbd_e2 = &((txbd + 1)->parse_bd_e2);
4942                 struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
4943
4944                 start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4945                 start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4946                 reg_bd->addr_hi = start_bd->addr_hi;
4947                 reg_bd->addr_lo = start_bd->addr_lo + 0x10;
4948                 start_bd->nbytes = cpu_to_le16(0x10);
4949                 start_bd->nbd = cpu_to_le16(3);
4950                 start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
4951                 start_bd->general_data &= ~ETH_TX_START_BD_PARSE_NBDS;
4952                 start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
4953
4954                 if (BNX2X_CHIP_IS_E2_PLUS(bp))
4955                         pbd_e2->parsing_data = (UNICAST_ADDRESS <<
4956                                 ETH_TX_PARSE_BD_E2_ETH_ADDR_TYPE_SHIFT);
4957                 else
4958                         pbd_e1x->global_data = (UNICAST_ADDRESS <<
4959                                 ETH_TX_PARSE_BD_E1X_ETH_ADDR_TYPE_SHIFT);
4960         }
4961
4962         val = (u64) ring_map >> 32;
4963         txbd->next_bd.addr_hi = cpu_to_le32(val);
4964
4965         data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
4966
4967         val = (u64) ring_map & 0xffffffff;
4968         txbd->next_bd.addr_lo = cpu_to_le32(val);
4969
4970         data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
4971
4972         /* Other ramrod params */
4973         data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
4974         data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
4975
4976         /* reset xstorm per client statistics */
4977         if (cli < MAX_STAT_COUNTER_ID) {
4978                 data->general.statistics_zero_flg = 1;
4979                 data->general.statistics_en_flg = 1;
4980                 data->general.statistics_counter_id = cli;
4981         }
4982
4983         cp->tx_cons_ptr =
4984                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
4985 }
4986
4987 static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
4988                                     struct client_init_ramrod_data *data)
4989 {
4990         struct cnic_local *cp = dev->cnic_priv;
4991         struct bnx2x *bp = netdev_priv(dev->netdev);
4992         struct cnic_uio_dev *udev = cp->udev;
4993         struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
4994                                 CNIC_PAGE_SIZE);
4995         struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
4996                                 (udev->l2_ring + (2 * CNIC_PAGE_SIZE));
4997         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4998         int i;
4999         u32 cli = cp->ethdev->iscsi_l2_client_id;
5000         int cl_qzone_id = BNX2X_CL_QZONE_ID(bp, cli);
5001         u32 val;
5002         dma_addr_t ring_map = udev->l2_ring_map;
5003
5004         /* General data */
5005         data->general.client_id = cli;
5006         data->general.activate_flg = 1;
5007         data->general.sp_client_id = cli;
5008         data->general.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
5009         data->general.func_id = bp->pfid;
5010
5011         for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
5012                 dma_addr_t buf_map;
5013                 int n = (i % cp->l2_rx_ring_size) + 1;
5014
5015                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
5016                 rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
5017                 rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
5018         }
5019
5020         val = (u64) (ring_map + CNIC_PAGE_SIZE) >> 32;
5021         rxbd->addr_hi = cpu_to_le32(val);
5022         data->rx.bd_page_base.hi = cpu_to_le32(val);
5023
5024         val = (u64) (ring_map + CNIC_PAGE_SIZE) & 0xffffffff;
5025         rxbd->addr_lo = cpu_to_le32(val);
5026         data->rx.bd_page_base.lo = cpu_to_le32(val);
5027
5028         rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
5029         val = (u64) (ring_map + (2 * CNIC_PAGE_SIZE)) >> 32;
5030         rxcqe->addr_hi = cpu_to_le32(val);
5031         data->rx.cqe_page_base.hi = cpu_to_le32(val);
5032
5033         val = (u64) (ring_map + (2 * CNIC_PAGE_SIZE)) & 0xffffffff;
5034         rxcqe->addr_lo = cpu_to_le32(val);
5035         data->rx.cqe_page_base.lo = cpu_to_le32(val);
5036
5037         /* Other ramrod params */
5038         data->rx.client_qzone_id = cl_qzone_id;
5039         data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
5040         data->rx.status_block_id = BNX2X_DEF_SB_ID;
5041
5042         data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
5043
5044         data->rx.max_bytes_on_bd = cpu_to_le16(cp->l2_single_buf_size);
5045         data->rx.outer_vlan_removal_enable_flg = 1;
5046         data->rx.silent_vlan_removal_flg = 1;
5047         data->rx.silent_vlan_value = 0;
5048         data->rx.silent_vlan_mask = 0xffff;
5049
5050         cp->rx_cons_ptr =
5051                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
5052         cp->rx_cons = *cp->rx_cons_ptr;
5053 }
5054
5055 static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
5056 {
5057         struct cnic_local *cp = dev->cnic_priv;
5058         struct bnx2x *bp = netdev_priv(dev->netdev);
5059         u32 pfid = bp->pfid;
5060
5061         cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
5062                            CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
5063         cp->kcq1.sw_prod_idx = 0;
5064
5065         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5066                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
5067
5068                 cp->kcq1.hw_prod_idx_ptr =
5069                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
5070                 cp->kcq1.status_idx_ptr =
5071                         &sb->sb.running_index[SM_RX_ID];
5072         } else {
5073                 struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
5074
5075                 cp->kcq1.hw_prod_idx_ptr =
5076                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
5077                 cp->kcq1.status_idx_ptr =
5078                         &sb->sb.running_index[SM_RX_ID];
5079         }
5080
5081         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5082                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
5083
5084                 cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
5085                                         USTORM_FCOE_EQ_PROD_OFFSET(pfid);
5086                 cp->kcq2.sw_prod_idx = 0;
5087                 cp->kcq2.hw_prod_idx_ptr =
5088                         &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
5089                 cp->kcq2.status_idx_ptr =
5090                         &sb->sb.running_index[SM_RX_ID];
5091         }
5092 }
5093
5094 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
5095 {
5096         struct cnic_local *cp = dev->cnic_priv;
5097         struct bnx2x *bp = netdev_priv(dev->netdev);
5098         struct cnic_eth_dev *ethdev = cp->ethdev;
5099         int ret;
5100         u32 pfid;
5101
5102         dev->stats_addr = ethdev->addr_drv_info_to_mcp;
5103         cp->func = bp->pf_num;
5104
5105         pfid = bp->pfid;
5106
5107         ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
5108                                cp->iscsi_start_cid, 0);
5109
5110         if (ret)
5111                 return -ENOMEM;
5112
5113         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5114                 ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl, dev->max_fcoe_conn,
5115                                         cp->fcoe_start_cid, 0);
5116
5117                 if (ret)
5118                         return -ENOMEM;
5119         }
5120
5121         cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
5122
5123         cnic_init_bnx2x_kcq(dev);
5124
5125         /* Only 1 EQ */
5126         CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
5127         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5128                 CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
5129         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5130                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
5131                 cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
5132         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5133                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
5134                 (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
5135         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5136                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
5137                 cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
5138         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5139                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
5140                 (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
5141         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
5142                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
5143         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
5144                 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
5145         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
5146                 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
5147                 HC_INDEX_ISCSI_EQ_CONS);
5148
5149         CNIC_WR(dev, BAR_USTRORM_INTMEM +
5150                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
5151                 cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
5152         CNIC_WR(dev, BAR_USTRORM_INTMEM +
5153                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
5154                 (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
5155
5156         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
5157                 TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
5158
5159         cnic_setup_bnx2x_context(dev);
5160
5161         ret = cnic_init_bnx2x_irq(dev);
5162         if (ret)
5163                 return ret;
5164
5165         ethdev->drv_state |= CNIC_DRV_STATE_HANDLES_IRQ;
5166         return 0;
5167 }
5168
5169 static void cnic_init_rings(struct cnic_dev *dev)
5170 {
5171         struct cnic_local *cp = dev->cnic_priv;
5172         struct bnx2x *bp = netdev_priv(dev->netdev);
5173         struct cnic_uio_dev *udev = cp->udev;
5174
5175         if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
5176                 return;
5177
5178         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
5179                 cnic_init_bnx2_tx_ring(dev);
5180                 cnic_init_bnx2_rx_ring(dev);
5181                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5182         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
5183                 u32 cli = cp->ethdev->iscsi_l2_client_id;
5184                 u32 cid = cp->ethdev->iscsi_l2_cid;
5185                 u32 cl_qzone_id;
5186                 struct client_init_ramrod_data *data;
5187                 union l5cm_specific_data l5_data;
5188                 struct ustorm_eth_rx_producers rx_prods = {0};
5189                 u32 off, i, *cid_ptr;
5190
5191                 rx_prods.bd_prod = 0;
5192                 rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
5193                 barrier();
5194
5195                 cl_qzone_id = BNX2X_CL_QZONE_ID(bp, cli);
5196
5197                 off = BAR_USTRORM_INTMEM +
5198                         (BNX2X_CHIP_IS_E2_PLUS(bp) ?
5199                          USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
5200                          USTORM_RX_PRODS_E1X_OFFSET(BP_PORT(bp), cli));
5201
5202                 for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
5203                         CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
5204
5205                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
5206
5207                 data = udev->l2_buf;
5208                 cid_ptr = udev->l2_buf + 12;
5209
5210                 memset(data, 0, sizeof(*data));
5211
5212                 cnic_init_bnx2x_tx_ring(dev, data);
5213                 cnic_init_bnx2x_rx_ring(dev, data);
5214
5215                 data->general.fp_hsi_ver =  ETH_FP_HSI_VERSION;
5216
5217                 l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
5218                 l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
5219
5220                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5221
5222                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
5223                         cid, ETH_CONNECTION_TYPE, &l5_data);
5224
5225                 i = 0;
5226                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
5227                        ++i < 10)
5228                         msleep(1);
5229
5230                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
5231                         netdev_err(dev->netdev,
5232                                 "iSCSI CLIENT_SETUP did not complete\n");
5233                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5234                 cnic_ring_ctl(dev, cid, cli, 1);
5235                 *cid_ptr = cid >> 4;
5236                 *(cid_ptr + 1) = cid * bp->db_size;
5237                 *(cid_ptr + 2) = UIO_USE_TX_DOORBELL;
5238         }
5239 }
5240
5241 static void cnic_shutdown_rings(struct cnic_dev *dev)
5242 {
5243         struct cnic_local *cp = dev->cnic_priv;
5244         struct cnic_uio_dev *udev = cp->udev;
5245         void *rx_ring;
5246
5247         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
5248                 return;
5249
5250         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
5251                 cnic_shutdown_bnx2_rx_ring(dev);
5252         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
5253                 u32 cli = cp->ethdev->iscsi_l2_client_id;
5254                 u32 cid = cp->ethdev->iscsi_l2_cid;
5255                 union l5cm_specific_data l5_data;
5256                 int i;
5257
5258                 cnic_ring_ctl(dev, cid, cli, 0);
5259
5260                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
5261
5262                 l5_data.phy_address.lo = cli;
5263                 l5_data.phy_address.hi = 0;
5264                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
5265                         cid, ETH_CONNECTION_TYPE, &l5_data);
5266                 i = 0;
5267                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
5268                        ++i < 10)
5269                         msleep(1);
5270
5271                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
5272                         netdev_err(dev->netdev,
5273                                 "iSCSI CLIENT_HALT did not complete\n");
5274                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5275
5276                 memset(&l5_data, 0, sizeof(l5_data));
5277                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
5278                         cid, NONE_CONNECTION_TYPE, &l5_data);
5279                 msleep(10);
5280         }
5281         clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5282         rx_ring = udev->l2_ring + CNIC_PAGE_SIZE;
5283         memset(rx_ring, 0, CNIC_PAGE_SIZE);
5284 }
5285
5286 static int cnic_register_netdev(struct cnic_dev *dev)
5287 {
5288         struct cnic_local *cp = dev->cnic_priv;
5289         struct cnic_eth_dev *ethdev = cp->ethdev;
5290         int err;
5291
5292         if (!ethdev)
5293                 return -ENODEV;
5294
5295         if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
5296                 return 0;
5297
5298         err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
5299         if (err)
5300                 netdev_err(dev->netdev, "register_cnic failed\n");
5301
5302         /* Read iSCSI config again.  On some bnx2x device, iSCSI config
5303          * can change after firmware is downloaded.
5304          */
5305         dev->max_iscsi_conn = ethdev->max_iscsi_conn;
5306         if (ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
5307                 dev->max_iscsi_conn = 0;
5308
5309         return err;
5310 }
5311
5312 static void cnic_unregister_netdev(struct cnic_dev *dev)
5313 {
5314         struct cnic_local *cp = dev->cnic_priv;
5315         struct cnic_eth_dev *ethdev = cp->ethdev;
5316
5317         if (!ethdev)
5318                 return;
5319
5320         ethdev->drv_unregister_cnic(dev->netdev);
5321 }
5322
5323 static int cnic_start_hw(struct cnic_dev *dev)
5324 {
5325         struct cnic_local *cp = dev->cnic_priv;
5326         struct cnic_eth_dev *ethdev = cp->ethdev;
5327         int err;
5328
5329         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
5330                 return -EALREADY;
5331
5332         dev->regview = ethdev->io_base;
5333         pci_dev_get(dev->pcidev);
5334         cp->func = PCI_FUNC(dev->pcidev->devfn);
5335         cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
5336         cp->status_blk_map = ethdev->irq_arr[0].status_blk_map;
5337         cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
5338
5339         err = cp->alloc_resc(dev);
5340         if (err) {
5341                 netdev_err(dev->netdev, "allocate resource failure\n");
5342                 goto err1;
5343         }
5344
5345         err = cp->start_hw(dev);
5346         if (err)
5347                 goto err1;
5348
5349         err = cnic_cm_open(dev);
5350         if (err)
5351                 goto err1;
5352
5353         set_bit(CNIC_F_CNIC_UP, &dev->flags);
5354
5355         cp->enable_int(dev);
5356
5357         return 0;
5358
5359 err1:
5360         if (ethdev->drv_state & CNIC_DRV_STATE_HANDLES_IRQ)
5361                 cp->stop_hw(dev);
5362         else
5363                 cp->free_resc(dev);
5364         pci_dev_put(dev->pcidev);
5365         return err;
5366 }
5367
5368 static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
5369 {
5370         cnic_disable_bnx2_int_sync(dev);
5371
5372         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
5373         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
5374
5375         cnic_init_context(dev, KWQ_CID);
5376         cnic_init_context(dev, KCQ_CID);
5377
5378         cnic_setup_5709_context(dev, 0);
5379         cnic_free_irq(dev);
5380
5381         cnic_free_resc(dev);
5382 }
5383
5384
5385 static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
5386 {
5387         struct cnic_local *cp = dev->cnic_priv;
5388         struct bnx2x *bp = netdev_priv(dev->netdev);
5389         u32 hc_index = HC_INDEX_ISCSI_EQ_CONS;
5390         u32 sb_id = cp->status_blk_num;
5391         u32 idx_off, syn_off;
5392
5393         cnic_free_irq(dev);
5394
5395         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5396                 idx_off = offsetof(struct hc_status_block_e2, index_values) +
5397                           (hc_index * sizeof(u16));
5398
5399                 syn_off = CSTORM_HC_SYNC_LINE_INDEX_E2_OFFSET(hc_index, sb_id);
5400         } else {
5401                 idx_off = offsetof(struct hc_status_block_e1x, index_values) +
5402                           (hc_index * sizeof(u16));
5403
5404                 syn_off = CSTORM_HC_SYNC_LINE_INDEX_E1X_OFFSET(hc_index, sb_id);
5405         }
5406         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + syn_off, 0);
5407         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_STATUS_BLOCK_OFFSET(sb_id) +
5408                   idx_off, 0);
5409
5410         *cp->kcq1.hw_prod_idx_ptr = 0;
5411         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5412                 CSTORM_ISCSI_EQ_CONS_OFFSET(bp->pfid, 0), 0);
5413         CNIC_WR16(dev, cp->kcq1.io_addr, 0);
5414         cnic_free_resc(dev);
5415 }
5416
5417 static void cnic_stop_hw(struct cnic_dev *dev)
5418 {
5419         if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5420                 struct cnic_local *cp = dev->cnic_priv;
5421                 int i = 0;
5422
5423                 /* Need to wait for the ring shutdown event to complete
5424                  * before clearing the CNIC_UP flag.
5425                  */
5426                 while (cp->udev && cp->udev->uio_dev != -1 && i < 15) {
5427                         msleep(100);
5428                         i++;
5429                 }
5430                 cnic_shutdown_rings(dev);
5431                 cp->stop_cm(dev);
5432                 cp->ethdev->drv_state &= ~CNIC_DRV_STATE_HANDLES_IRQ;
5433                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
5434                 RCU_INIT_POINTER(cp->ulp_ops[CNIC_ULP_L4], NULL);
5435                 synchronize_rcu();
5436                 cnic_cm_shutdown(dev);
5437                 cp->stop_hw(dev);
5438                 pci_dev_put(dev->pcidev);
5439         }
5440 }
5441
5442 static void cnic_free_dev(struct cnic_dev *dev)
5443 {
5444         int i = 0;
5445
5446         while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
5447                 msleep(100);
5448                 i++;
5449         }
5450         if (atomic_read(&dev->ref_count) != 0)
5451                 netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
5452
5453         netdev_info(dev->netdev, "Removed CNIC device\n");
5454         dev_put(dev->netdev);
5455         kfree(dev);
5456 }
5457
5458 static int cnic_get_fc_npiv_tbl(struct cnic_dev *dev,
5459                                 struct cnic_fc_npiv_tbl *npiv_tbl)
5460 {
5461         struct cnic_local *cp = dev->cnic_priv;
5462         struct bnx2x *bp = netdev_priv(dev->netdev);
5463         int ret;
5464
5465         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
5466                 return -EAGAIN;     /* bnx2x is down */
5467
5468         if (!BNX2X_CHIP_IS_E2_PLUS(bp))
5469                 return -EINVAL;
5470
5471         ret = cp->ethdev->drv_get_fc_npiv_tbl(dev->netdev, npiv_tbl);
5472         return ret;
5473 }
5474
5475 static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
5476                                        struct pci_dev *pdev)
5477 {
5478         struct cnic_dev *cdev;
5479         struct cnic_local *cp;
5480         int alloc_size;
5481
5482         alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
5483
5484         cdev = kzalloc(alloc_size, GFP_KERNEL);
5485         if (cdev == NULL)
5486                 return NULL;
5487
5488         cdev->netdev = dev;
5489         cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
5490         cdev->register_device = cnic_register_device;
5491         cdev->unregister_device = cnic_unregister_device;
5492         cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
5493         cdev->get_fc_npiv_tbl = cnic_get_fc_npiv_tbl;
5494         atomic_set(&cdev->ref_count, 0);
5495
5496         cp = cdev->cnic_priv;
5497         cp->dev = cdev;
5498         cp->l2_single_buf_size = 0x400;
5499         cp->l2_rx_ring_size = 3;
5500
5501         spin_lock_init(&cp->cnic_ulp_lock);
5502
5503         netdev_info(dev, "Added CNIC device\n");
5504
5505         return cdev;
5506 }
5507
5508 static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
5509 {
5510         struct pci_dev *pdev;
5511         struct cnic_dev *cdev;
5512         struct cnic_local *cp;
5513         struct bnx2 *bp = netdev_priv(dev);
5514         struct cnic_eth_dev *ethdev = NULL;
5515
5516         if (bp->cnic_probe)
5517                 ethdev = (bp->cnic_probe)(dev);
5518
5519         if (!ethdev)
5520                 return NULL;
5521
5522         pdev = ethdev->pdev;
5523         if (!pdev)
5524                 return NULL;
5525
5526         dev_hold(dev);
5527         pci_dev_get(pdev);
5528         if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
5529              pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
5530             (pdev->revision < 0x10)) {
5531                 pci_dev_put(pdev);
5532                 goto cnic_err;
5533         }
5534         pci_dev_put(pdev);
5535
5536         cdev = cnic_alloc_dev(dev, pdev);
5537         if (cdev == NULL)
5538                 goto cnic_err;
5539
5540         set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
5541         cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
5542
5543         cp = cdev->cnic_priv;
5544         cp->ethdev = ethdev;
5545         cdev->pcidev = pdev;
5546         cp->chip_id = ethdev->chip_id;
5547
5548         cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5549
5550         cp->cnic_ops = &cnic_bnx2_ops;
5551         cp->start_hw = cnic_start_bnx2_hw;
5552         cp->stop_hw = cnic_stop_bnx2_hw;
5553         cp->setup_pgtbl = cnic_setup_page_tbl;
5554         cp->alloc_resc = cnic_alloc_bnx2_resc;
5555         cp->free_resc = cnic_free_resc;
5556         cp->start_cm = cnic_cm_init_bnx2_hw;
5557         cp->stop_cm = cnic_cm_stop_bnx2_hw;
5558         cp->enable_int = cnic_enable_bnx2_int;
5559         cp->disable_int_sync = cnic_disable_bnx2_int_sync;
5560         cp->close_conn = cnic_close_bnx2_conn;
5561         return cdev;
5562
5563 cnic_err:
5564         dev_put(dev);
5565         return NULL;
5566 }
5567
5568 static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
5569 {
5570         struct pci_dev *pdev;
5571         struct cnic_dev *cdev;
5572         struct cnic_local *cp;
5573         struct bnx2x *bp = netdev_priv(dev);
5574         struct cnic_eth_dev *ethdev = NULL;
5575
5576         if (bp->cnic_probe)
5577                 ethdev = bp->cnic_probe(dev);
5578
5579         if (!ethdev)
5580                 return NULL;
5581
5582         pdev = ethdev->pdev;
5583         if (!pdev)
5584                 return NULL;
5585
5586         dev_hold(dev);
5587         cdev = cnic_alloc_dev(dev, pdev);
5588         if (cdev == NULL) {
5589                 dev_put(dev);
5590                 return NULL;
5591         }
5592
5593         set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
5594         cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
5595
5596         cp = cdev->cnic_priv;
5597         cp->ethdev = ethdev;
5598         cdev->pcidev = pdev;
5599         cp->chip_id = ethdev->chip_id;
5600
5601         cdev->stats_addr = ethdev->addr_drv_info_to_mcp;
5602
5603         if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
5604                 cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5605         if (CNIC_SUPPORTS_FCOE(bp)) {
5606                 cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
5607                 cdev->max_fcoe_exchanges = ethdev->max_fcoe_exchanges;
5608         }
5609
5610         if (cdev->max_fcoe_conn > BNX2X_FCOE_NUM_CONNECTIONS)
5611                 cdev->max_fcoe_conn = BNX2X_FCOE_NUM_CONNECTIONS;
5612
5613         memcpy(cdev->mac_addr, ethdev->iscsi_mac, ETH_ALEN);
5614
5615         cp->cnic_ops = &cnic_bnx2x_ops;
5616         cp->start_hw = cnic_start_bnx2x_hw;
5617         cp->stop_hw = cnic_stop_bnx2x_hw;
5618         cp->setup_pgtbl = cnic_setup_page_tbl_le;
5619         cp->alloc_resc = cnic_alloc_bnx2x_resc;
5620         cp->free_resc = cnic_free_resc;
5621         cp->start_cm = cnic_cm_init_bnx2x_hw;
5622         cp->stop_cm = cnic_cm_stop_bnx2x_hw;
5623         cp->enable_int = cnic_enable_bnx2x_int;
5624         cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
5625         if (BNX2X_CHIP_IS_E2_PLUS(bp)) {
5626                 cp->ack_int = cnic_ack_bnx2x_e2_msix;
5627                 cp->arm_int = cnic_arm_bnx2x_e2_msix;
5628         } else {
5629                 cp->ack_int = cnic_ack_bnx2x_msix;
5630                 cp->arm_int = cnic_arm_bnx2x_msix;
5631         }
5632         cp->close_conn = cnic_close_bnx2x_conn;
5633         return cdev;
5634 }
5635
5636 static struct cnic_dev *is_cnic_dev(struct net_device *dev)
5637 {
5638         struct ethtool_drvinfo drvinfo;
5639         struct cnic_dev *cdev = NULL;
5640
5641         if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
5642                 memset(&drvinfo, 0, sizeof(drvinfo));
5643                 dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
5644
5645                 if (!strcmp(drvinfo.driver, "bnx2"))
5646                         cdev = init_bnx2_cnic(dev);
5647                 if (!strcmp(drvinfo.driver, "bnx2x"))
5648                         cdev = init_bnx2x_cnic(dev);
5649                 if (cdev) {
5650                         write_lock(&cnic_dev_lock);
5651                         list_add(&cdev->list, &cnic_dev_list);
5652                         write_unlock(&cnic_dev_lock);
5653                 }
5654         }
5655         return cdev;
5656 }
5657
5658 static void cnic_rcv_netevent(struct cnic_local *cp, unsigned long event,
5659                               u16 vlan_id)
5660 {
5661         int if_type;
5662
5663         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
5664                 struct cnic_ulp_ops *ulp_ops;
5665                 void *ctx;
5666
5667                 mutex_lock(&cnic_lock);
5668                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
5669                                                 lockdep_is_held(&cnic_lock));
5670                 if (!ulp_ops || !ulp_ops->indicate_netevent) {
5671                         mutex_unlock(&cnic_lock);
5672                         continue;
5673                 }
5674
5675                 ctx = cp->ulp_handle[if_type];
5676
5677                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
5678                 mutex_unlock(&cnic_lock);
5679
5680                 ulp_ops->indicate_netevent(ctx, event, vlan_id);
5681
5682                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
5683         }
5684 }
5685
5686 /* netdev event handler */
5687 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
5688                                                          void *ptr)
5689 {
5690         struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
5691         struct cnic_dev *dev;
5692         int new_dev = 0;
5693
5694         dev = cnic_from_netdev(netdev);
5695
5696         if (!dev && event == NETDEV_REGISTER) {
5697                 /* Check for the hot-plug device */
5698                 dev = is_cnic_dev(netdev);
5699                 if (dev) {
5700                         new_dev = 1;
5701                         cnic_hold(dev);
5702                 }
5703         }
5704         if (dev) {
5705                 struct cnic_local *cp = dev->cnic_priv;
5706
5707                 if (new_dev)
5708                         cnic_ulp_init(dev);
5709                 else if (event == NETDEV_UNREGISTER)
5710                         cnic_ulp_exit(dev);
5711
5712                 if (event == NETDEV_UP) {
5713                         if (cnic_register_netdev(dev) != 0) {
5714                                 cnic_put(dev);
5715                                 goto done;
5716                         }
5717                         if (!cnic_start_hw(dev))
5718                                 cnic_ulp_start(dev);
5719                 }
5720
5721                 cnic_rcv_netevent(cp, event, 0);
5722
5723                 if (event == NETDEV_GOING_DOWN) {
5724                         cnic_ulp_stop(dev);
5725                         cnic_stop_hw(dev);
5726                         cnic_unregister_netdev(dev);
5727                 } else if (event == NETDEV_UNREGISTER) {
5728                         write_lock(&cnic_dev_lock);
5729                         list_del_init(&dev->list);
5730                         write_unlock(&cnic_dev_lock);
5731
5732                         cnic_put(dev);
5733                         cnic_free_dev(dev);
5734                         goto done;
5735                 }
5736                 cnic_put(dev);
5737         } else {
5738                 struct net_device *realdev;
5739                 u16 vid;
5740
5741                 vid = cnic_get_vlan(netdev, &realdev);
5742                 if (realdev) {
5743                         dev = cnic_from_netdev(realdev);
5744                         if (dev) {
5745                                 vid |= VLAN_CFI_MASK;   /* make non-zero */
5746                                 cnic_rcv_netevent(dev->cnic_priv, event, vid);
5747                                 cnic_put(dev);
5748                         }
5749                 }
5750         }
5751 done:
5752         return NOTIFY_DONE;
5753 }
5754
5755 static struct notifier_block cnic_netdev_notifier = {
5756         .notifier_call = cnic_netdev_event
5757 };
5758
5759 static void cnic_release(void)
5760 {
5761         struct cnic_uio_dev *udev;
5762
5763         while (!list_empty(&cnic_udev_list)) {
5764                 udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
5765                                   list);
5766                 cnic_free_uio(udev);
5767         }
5768 }
5769
5770 static int __init cnic_init(void)
5771 {
5772         int rc = 0;
5773
5774         pr_info("%s", version);
5775
5776         rc = register_netdevice_notifier(&cnic_netdev_notifier);
5777         if (rc) {
5778                 cnic_release();
5779                 return rc;
5780         }
5781
5782         cnic_wq = create_singlethread_workqueue("cnic_wq");
5783         if (!cnic_wq) {
5784                 cnic_release();
5785                 unregister_netdevice_notifier(&cnic_netdev_notifier);
5786                 return -ENOMEM;
5787         }
5788
5789         return 0;
5790 }
5791
5792 static void __exit cnic_exit(void)
5793 {
5794         unregister_netdevice_notifier(&cnic_netdev_notifier);
5795         cnic_release();
5796         destroy_workqueue(cnic_wq);
5797 }
5798
5799 module_init(cnic_init);
5800 module_exit(cnic_exit);