drivers/net/cnic.c

   1 /* cnic.c: Broadcom CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2010 Broadcom Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation.
   8  *
   9  * Original skeleton written by: John(Zongxi) Chen (zongxi@broadcom.com)
  10  * Modified and maintained by: Michael Chan <mchan@broadcom.com>
  11  */
  12
  13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  14
  15 #include <linux/module.h>
  16
  17 #include <linux/kernel.h>
  18 #include <linux/errno.h>
  19 #include <linux/list.h>
  20 #include <linux/slab.h>
  21 #include <linux/pci.h>
  22 #include <linux/init.h>
  23 #include <linux/netdevice.h>
  24 #include <linux/uio_driver.h>
  25 #include <linux/in.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/delay.h>
  28 #include <linux/ethtool.h>
  29 #include <linux/if_vlan.h>
  30 #include <linux/prefetch.h>
  31 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  32 #define BCM_VLAN 1
  33 #endif
  34 #include <net/ip.h>
  35 #include <net/tcp.h>
  36 #include <net/route.h>
  37 #include <net/ipv6.h>
  38 #include <net/ip6_route.h>
  39 #include <net/ip6_checksum.h>
  40 #include <scsi/iscsi_if.h>
  41
  42 #include "cnic_if.h"
  43 #include "bnx2.h"
  44 #include "bnx2x/bnx2x_reg.h"
  45 #include "bnx2x/bnx2x_fw_defs.h"
  46 #include "bnx2x/bnx2x_hsi.h"
  47 #include "../scsi/bnx2i/57xx_iscsi_constants.h"
  48 #include "../scsi/bnx2i/57xx_iscsi_hsi.h"
  49 #include "cnic.h"
  50 #include "cnic_defs.h"
  51
  52 #define DRV_MODULE_NAME         "cnic"
  53
  54 static char version[] __devinitdata =
  55         "Broadcom NetXtreme II CNIC Driver " DRV_MODULE_NAME " v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
  56
  57 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
  58               "Chen (zongxi@broadcom.com");
  59 MODULE_DESCRIPTION("Broadcom NetXtreme II CNIC Driver");
  60 MODULE_LICENSE("GPL");
  61 MODULE_VERSION(CNIC_MODULE_VERSION);
  62
  63 /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
  64 static LIST_HEAD(cnic_dev_list);
  65 static LIST_HEAD(cnic_udev_list);
  66 static DEFINE_RWLOCK(cnic_dev_lock);
  67 static DEFINE_MUTEX(cnic_lock);
  68
  69 static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
  70
  71 /* helper function, assuming cnic_lock is held */
  72 static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
  73 {
  74         return rcu_dereference_protected(cnic_ulp_tbl[type],
  75                                          lockdep_is_held(&cnic_lock));
  76 }
  77
  78 static int cnic_service_bnx2(void *, void *);
  79 static int cnic_service_bnx2x(void *, void *);
  80 static int cnic_ctl(void *, struct cnic_ctl_info *);
  81
  82 static struct cnic_ops cnic_bnx2_ops = {
  83         .cnic_owner     = THIS_MODULE,
  84         .cnic_handler   = cnic_service_bnx2,
  85         .cnic_ctl       = cnic_ctl,
  86 };
  87
  88 static struct cnic_ops cnic_bnx2x_ops = {
  89         .cnic_owner     = THIS_MODULE,
  90         .cnic_handler   = cnic_service_bnx2x,
  91         .cnic_ctl       = cnic_ctl,
  92 };
  93
  94 static struct workqueue_struct *cnic_wq;
  95
  96 static void cnic_shutdown_rings(struct cnic_dev *);
  97 static void cnic_init_rings(struct cnic_dev *);
  98 static int cnic_cm_set_pg(struct cnic_sock *);
  99
 100 static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 101 {
 102         struct cnic_uio_dev *udev = uinfo->priv;
 103         struct cnic_dev *dev;
 104
 105         if (!capable(CAP_NET_ADMIN))
 106                 return -EPERM;
 107
 108         if (udev->uio_dev != -1)
 109                 return -EBUSY;
 110
 111         rtnl_lock();
 112         dev = udev->dev;
 113
 114         if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
 115                 rtnl_unlock();
 116                 return -ENODEV;
 117         }
 118
 119         udev->uio_dev = iminor(inode);
 120
 121         cnic_shutdown_rings(dev);
 122         cnic_init_rings(dev);
 123         rtnl_unlock();
 124
 125         return 0;
 126 }
 127
 128 static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 129 {
 130         struct cnic_uio_dev *udev = uinfo->priv;
 131
 132         udev->uio_dev = -1;
 133         return 0;
 134 }
 135
 136 static inline void cnic_hold(struct cnic_dev *dev)
 137 {
 138         atomic_inc(&dev->ref_count);
 139 }
 140
 141 static inline void cnic_put(struct cnic_dev *dev)
 142 {
 143         atomic_dec(&dev->ref_count);
 144 }
 145
 146 static inline void csk_hold(struct cnic_sock *csk)
 147 {
 148         atomic_inc(&csk->ref_count);
 149 }
 150
 151 static inline void csk_put(struct cnic_sock *csk)
 152 {
 153         atomic_dec(&csk->ref_count);
 154 }
 155
 156 static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
 157 {
 158         struct cnic_dev *cdev;
 159
 160         read_lock(&cnic_dev_lock);
 161         list_for_each_entry(cdev, &cnic_dev_list, list) {
 162                 if (netdev == cdev->netdev) {
 163                         cnic_hold(cdev);
 164                         read_unlock(&cnic_dev_lock);
 165                         return cdev;
 166                 }
 167         }
 168         read_unlock(&cnic_dev_lock);
 169         return NULL;
 170 }
 171
 172 static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
 173 {
 174         atomic_inc(&ulp_ops->ref_count);
 175 }
 176
 177 static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
 178 {
 179         atomic_dec(&ulp_ops->ref_count);
 180 }
 181
 182 static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
 183 {
 184         struct cnic_local *cp = dev->cnic_priv;
 185         struct cnic_eth_dev *ethdev = cp->ethdev;
 186         struct drv_ctl_info info;
 187         struct drv_ctl_io *io = &info.data.io;
 188
 189         info.cmd = DRV_CTL_CTX_WR_CMD;
 190         io->cid_addr = cid_addr;
 191         io->offset = off;
 192         io->data = val;
 193         ethdev->drv_ctl(dev->netdev, &info);
 194 }
 195
 196 static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
 197 {
 198         struct cnic_local *cp = dev->cnic_priv;
 199         struct cnic_eth_dev *ethdev = cp->ethdev;
 200         struct drv_ctl_info info;
 201         struct drv_ctl_io *io = &info.data.io;
 202
 203         info.cmd = DRV_CTL_CTXTBL_WR_CMD;
 204         io->offset = off;
 205         io->dma_addr = addr;
 206         ethdev->drv_ctl(dev->netdev, &info);
 207 }
 208
 209 static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
 210 {
 211         struct cnic_local *cp = dev->cnic_priv;
 212         struct cnic_eth_dev *ethdev = cp->ethdev;
 213         struct drv_ctl_info info;
 214         struct drv_ctl_l2_ring *ring = &info.data.ring;
 215
 216         if (start)
 217                 info.cmd = DRV_CTL_START_L2_CMD;
 218         else
 219                 info.cmd = DRV_CTL_STOP_L2_CMD;
 220
 221         ring->cid = cid;
 222         ring->client_id = cl_id;
 223         ethdev->drv_ctl(dev->netdev, &info);
 224 }
 225
 226 static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
 227 {
 228         struct cnic_local *cp = dev->cnic_priv;
 229         struct cnic_eth_dev *ethdev = cp->ethdev;
 230         struct drv_ctl_info info;
 231         struct drv_ctl_io *io = &info.data.io;
 232
 233         info.cmd = DRV_CTL_IO_WR_CMD;
 234         io->offset = off;
 235         io->data = val;
 236         ethdev->drv_ctl(dev->netdev, &info);
 237 }
 238
 239 static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
 240 {
 241         struct cnic_local *cp = dev->cnic_priv;
 242         struct cnic_eth_dev *ethdev = cp->ethdev;
 243         struct drv_ctl_info info;
 244         struct drv_ctl_io *io = &info.data.io;
 245
 246         info.cmd = DRV_CTL_IO_RD_CMD;
 247         io->offset = off;
 248         ethdev->drv_ctl(dev->netdev, &info);
 249         return io->data;
 250 }
 251
 252 static int cnic_in_use(struct cnic_sock *csk)
 253 {
 254         return test_bit(SK_F_INUSE, &csk->flags);
 255 }
 256
 257 static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
 258 {
 259         struct cnic_local *cp = dev->cnic_priv;
 260         struct cnic_eth_dev *ethdev = cp->ethdev;
 261         struct drv_ctl_info info;
 262
 263         info.cmd = cmd;
 264         info.data.credit.credit_count = count;
 265         ethdev->drv_ctl(dev->netdev, &info);
 266 }
 267
 268 static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
 269 {
 270         u32 i;
 271
 272         for (i = 0; i < cp->max_cid_space; i++) {
 273                 if (cp->ctx_tbl[i].cid == cid) {
 274                         *l5_cid = i;
 275                         return 0;
 276                 }
 277         }
 278         return -EINVAL;
 279 }
 280
 281 static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
 282                            struct cnic_sock *csk)
 283 {
 284         struct iscsi_path path_req;
 285         char *buf = NULL;
 286         u16 len = 0;
 287         u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 288         struct cnic_ulp_ops *ulp_ops;
 289         struct cnic_uio_dev *udev = cp->udev;
 290         int rc = 0, retry = 0;
 291
 292         if (!udev || udev->uio_dev == -1)
 293                 return -ENODEV;
 294
 295         if (csk) {
 296                 len = sizeof(path_req);
 297                 buf = (char *) &path_req;
 298                 memset(&path_req, 0, len);
 299
 300                 msg_type = ISCSI_KEVENT_PATH_REQ;
 301                 path_req.handle = (u64) csk->l5_cid;
 302                 if (test_bit(SK_F_IPV6, &csk->flags)) {
 303                         memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
 304                                sizeof(struct in6_addr));
 305                         path_req.ip_addr_len = 16;
 306                 } else {
 307                         memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
 308                                sizeof(struct in_addr));
 309                         path_req.ip_addr_len = 4;
 310                 }
 311                 path_req.vlan_id = csk->vlan_id;
 312                 path_req.pmtu = csk->mtu;
 313         }
 314
 315         while (retry < 3) {
 316                 rc = 0;
 317                 rcu_read_lock();
 318                 ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
 319                 if (ulp_ops)
 320                         rc = ulp_ops->iscsi_nl_send_msg(
 321                                 cp->ulp_handle[CNIC_ULP_ISCSI],
 322                                 msg_type, buf, len);
 323                 rcu_read_unlock();
 324                 if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
 325                         break;
 326
 327                 msleep(100);
 328                 retry++;
 329         }
 330         return 0;
 331 }
 332
 333 static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
 334
 335 static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 336                                   char *buf, u16 len)
 337 {
 338         int rc = -EINVAL;
 339
 340         switch (msg_type) {
 341         case ISCSI_UEVENT_PATH_UPDATE: {
 342                 struct cnic_local *cp;
 343                 u32 l5_cid;
 344                 struct cnic_sock *csk;
 345                 struct iscsi_path *path_resp;
 346
 347                 if (len < sizeof(*path_resp))
 348                         break;
 349
 350                 path_resp = (struct iscsi_path *) buf;
 351                 cp = dev->cnic_priv;
 352                 l5_cid = (u32) path_resp->handle;
 353                 if (l5_cid >= MAX_CM_SK_TBL_SZ)
 354                         break;
 355
 356                 rcu_read_lock();
 357                 if (!rcu_dereference(cp->ulp_ops[CNIC_ULP_L4])) {
 358                         rc = -ENODEV;
 359                         rcu_read_unlock();
 360                         break;
 361                 }
 362                 csk = &cp->csk_tbl[l5_cid];
 363                 csk_hold(csk);
 364                 if (cnic_in_use(csk) &&
 365                     test_bit(SK_F_CONNECT_START, &csk->flags)) {
 366
 367                         memcpy(csk->ha, path_resp->mac_addr, 6);
 368                         if (test_bit(SK_F_IPV6, &csk->flags))
 369                                 memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 370                                        sizeof(struct in6_addr));
 371                         else
 372                                 memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
 373                                        sizeof(struct in_addr));
 374
 375                         if (is_valid_ether_addr(csk->ha)) {
 376                                 cnic_cm_set_pg(csk);
 377                         } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
 378                                 !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 379
 380                                 cnic_cm_upcall(cp, csk,
 381                                         L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
 382                                 clear_bit(SK_F_CONNECT_START, &csk->flags);
 383                         }
 384                 }
 385                 csk_put(csk);
 386                 rcu_read_unlock();
 387                 rc = 0;
 388         }
 389         }
 390
 391         return rc;
 392 }
 393
 394 static int cnic_offld_prep(struct cnic_sock *csk)
 395 {
 396         if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 397                 return 0;
 398
 399         if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
 400                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 401                 return 0;
 402         }
 403
 404         return 1;
 405 }
 406
 407 static int cnic_close_prep(struct cnic_sock *csk)
 408 {
 409         clear_bit(SK_F_CONNECT_START, &csk->flags);
 410         smp_mb__after_clear_bit();
 411
 412         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 413                 while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 414                         msleep(1);
 415
 416                 return 1;
 417         }
 418         return 0;
 419 }
 420
 421 static int cnic_abort_prep(struct cnic_sock *csk)
 422 {
 423         clear_bit(SK_F_CONNECT_START, &csk->flags);
 424         smp_mb__after_clear_bit();
 425
 426         while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 427                 msleep(1);
 428
 429         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 430                 csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
 431                 return 1;
 432         }
 433
 434         return 0;
 435 }
 436
 437 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 438 {
 439         struct cnic_dev *dev;
 440
 441         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 442                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 443                 return -EINVAL;
 444         }
 445         mutex_lock(&cnic_lock);
 446         if (cnic_ulp_tbl_prot(ulp_type)) {
 447                 pr_err("%s: Type %d has already been registered\n",
 448                        __func__, ulp_type);
 449                 mutex_unlock(&cnic_lock);
 450                 return -EBUSY;
 451         }
 452
 453         read_lock(&cnic_dev_lock);
 454         list_for_each_entry(dev, &cnic_dev_list, list) {
 455                 struct cnic_local *cp = dev->cnic_priv;
 456
 457                 clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
 458         }
 459         read_unlock(&cnic_dev_lock);
 460
 461         atomic_set(&ulp_ops->ref_count, 0);
 462         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
 463         mutex_unlock(&cnic_lock);
 464
 465         /* Prevent race conditions with netdev_event */
 466         rtnl_lock();
 467         list_for_each_entry(dev, &cnic_dev_list, list) {
 468                 struct cnic_local *cp = dev->cnic_priv;
 469
 470                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 471                         ulp_ops->cnic_init(dev);
 472         }
 473         rtnl_unlock();
 474
 475         return 0;
 476 }
 477
 478 int cnic_unregister_driver(int ulp_type)
 479 {
 480         struct cnic_dev *dev;
 481         struct cnic_ulp_ops *ulp_ops;
 482         int i = 0;
 483
 484         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 485                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 486                 return -EINVAL;
 487         }
 488         mutex_lock(&cnic_lock);
 489         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 490         if (!ulp_ops) {
 491                 pr_err("%s: Type %d has not been registered\n",
 492                        __func__, ulp_type);
 493                 goto out_unlock;
 494         }
 495         read_lock(&cnic_dev_lock);
 496         list_for_each_entry(dev, &cnic_dev_list, list) {
 497                 struct cnic_local *cp = dev->cnic_priv;
 498
 499                 if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 500                         pr_err("%s: Type %d still has devices registered\n",
 501                                __func__, ulp_type);
 502                         read_unlock(&cnic_dev_lock);
 503                         goto out_unlock;
 504                 }
 505         }
 506         read_unlock(&cnic_dev_lock);
 507
 508         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], NULL);
 509
 510         mutex_unlock(&cnic_lock);
 511         synchronize_rcu();
 512         while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
 513                 msleep(100);
 514                 i++;
 515         }
 516
 517         if (atomic_read(&ulp_ops->ref_count) != 0)
 518                 netdev_warn(dev->netdev, "Failed waiting for ref count to go to zero\n");
 519         return 0;
 520
 521 out_unlock:
 522         mutex_unlock(&cnic_lock);
 523         return -EINVAL;
 524 }
 525
 526 static int cnic_start_hw(struct cnic_dev *);
 527 static void cnic_stop_hw(struct cnic_dev *);
 528
 529 static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
 530                                 void *ulp_ctx)
 531 {
 532         struct cnic_local *cp = dev->cnic_priv;
 533         struct cnic_ulp_ops *ulp_ops;
 534
 535         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 536                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 537                 return -EINVAL;
 538         }
 539         mutex_lock(&cnic_lock);
 540         if (cnic_ulp_tbl_prot(ulp_type) == NULL) {
 541                 pr_err("%s: Driver with type %d has not been registered\n",
 542                        __func__, ulp_type);
 543                 mutex_unlock(&cnic_lock);
 544                 return -EAGAIN;
 545         }
 546         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 547                 pr_err("%s: Type %d has already been registered to this device\n",
 548                        __func__, ulp_type);
 549                 mutex_unlock(&cnic_lock);
 550                 return -EBUSY;
 551         }
 552
 553         clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
 554         cp->ulp_handle[ulp_type] = ulp_ctx;
 555         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 556         rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
 557         cnic_hold(dev);
 558
 559         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
 560                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
 561                         ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
 562
 563         mutex_unlock(&cnic_lock);
 564
 565         return 0;
 566
 567 }
 568 EXPORT_SYMBOL(cnic_register_driver);
 569
 570 static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
 571 {
 572         struct cnic_local *cp = dev->cnic_priv;
 573         int i = 0;
 574
 575         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 576                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 577                 return -EINVAL;
 578         }
 579         mutex_lock(&cnic_lock);
 580         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 581                 rcu_assign_pointer(cp->ulp_ops[ulp_type], NULL);
 582                 cnic_put(dev);
 583         } else {
 584                 pr_err("%s: device not registered to this ulp type %d\n",
 585                        __func__, ulp_type);
 586                 mutex_unlock(&cnic_lock);
 587                 return -EINVAL;
 588         }
 589         mutex_unlock(&cnic_lock);
 590
 591         if (ulp_type == CNIC_ULP_ISCSI)
 592                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 593
 594         synchronize_rcu();
 595
 596         while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
 597                i < 20) {
 598                 msleep(100);
 599                 i++;
 600         }
 601         if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
 602                 netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
 603
 604         return 0;
 605 }
 606 EXPORT_SYMBOL(cnic_unregister_driver);
 607
 608 static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id,
 609                             u32 next)
 610 {
 611         id_tbl->start = start_id;
 612         id_tbl->max = size;
 613         id_tbl->next = next;
 614         spin_lock_init(&id_tbl->lock);
 615         id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL);
 616         if (!id_tbl->table)
 617                 return -ENOMEM;
 618
 619         return 0;
 620 }
 621
 622 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 623 {
 624         kfree(id_tbl->table);
 625         id_tbl->table = NULL;
 626 }
 627
 628 static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
 629 {
 630         int ret = -1;
 631
 632         id -= id_tbl->start;
 633         if (id >= id_tbl->max)
 634                 return ret;
 635
 636         spin_lock(&id_tbl->lock);
 637         if (!test_bit(id, id_tbl->table)) {
 638                 set_bit(id, id_tbl->table);
 639                 ret = 0;
 640         }
 641         spin_unlock(&id_tbl->lock);
 642         return ret;
 643 }
 644
 645 /* Returns -1 if not successful */
 646 static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
 647 {
 648         u32 id;
 649
 650         spin_lock(&id_tbl->lock);
 651         id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
 652         if (id >= id_tbl->max) {
 653                 id = -1;
 654                 if (id_tbl->next != 0) {
 655                         id = find_first_zero_bit(id_tbl->table, id_tbl->next);
 656                         if (id >= id_tbl->next)
 657                                 id = -1;
 658                 }
 659         }
 660
 661         if (id < id_tbl->max) {
 662                 set_bit(id, id_tbl->table);
 663                 id_tbl->next = (id + 1) & (id_tbl->max - 1);
 664                 id += id_tbl->start;
 665         }
 666
 667         spin_unlock(&id_tbl->lock);
 668
 669         return id;
 670 }
 671
 672 static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
 673 {
 674         if (id == -1)
 675                 return;
 676
 677         id -= id_tbl->start;
 678         if (id >= id_tbl->max)
 679                 return;
 680
 681         clear_bit(id, id_tbl->table);
 682 }
 683
 684 static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
 685 {
 686         int i;
 687
 688         if (!dma->pg_arr)
 689                 return;
 690
 691         for (i = 0; i < dma->num_pages; i++) {
 692                 if (dma->pg_arr[i]) {
 693                         dma_free_coherent(&dev->pcidev->dev, BCM_PAGE_SIZE,
 694                                           dma->pg_arr[i], dma->pg_map_arr[i]);
 695                         dma->pg_arr[i] = NULL;
 696                 }
 697         }
 698         if (dma->pgtbl) {
 699                 dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 700                                   dma->pgtbl, dma->pgtbl_map);
 701                 dma->pgtbl = NULL;
 702         }
 703         kfree(dma->pg_arr);
 704         dma->pg_arr = NULL;
 705         dma->num_pages = 0;
 706 }
 707
 708 static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
 709 {
 710         int i;
 711         __le32 *page_table = (__le32 *) dma->pgtbl;
 712
 713         for (i = 0; i < dma->num_pages; i++) {
 714                 /* Each entry needs to be in big endian format. */
 715                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 716                 page_table++;
 717                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 718                 page_table++;
 719         }
 720 }
 721
 722 static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
 723 {
 724         int i;
 725         __le32 *page_table = (__le32 *) dma->pgtbl;
 726
 727         for (i = 0; i < dma->num_pages; i++) {
 728                 /* Each entry needs to be in little endian format. */
 729                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 730                 page_table++;
 731                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 732                 page_table++;
 733         }
 734 }
 735
 736 static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
 737                           int pages, int use_pg_tbl)
 738 {
 739         int i, size;
 740         struct cnic_local *cp = dev->cnic_priv;
 741
 742         size = pages * (sizeof(void *) + sizeof(dma_addr_t));
 743         dma->pg_arr = kzalloc(size, GFP_ATOMIC);
 744         if (dma->pg_arr == NULL)
 745                 return -ENOMEM;
 746
 747         dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
 748         dma->num_pages = pages;
 749
 750         for (i = 0; i < pages; i++) {
 751                 dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
 752                                                     BCM_PAGE_SIZE,
 753                                                     &dma->pg_map_arr[i],
 754                                                     GFP_ATOMIC);
 755                 if (dma->pg_arr[i] == NULL)
 756                         goto error;
 757         }
 758         if (!use_pg_tbl)
 759                 return 0;
 760
 761         dma->pgtbl_size = ((pages * 8) + BCM_PAGE_SIZE - 1) &
 762                           ~(BCM_PAGE_SIZE - 1);
 763         dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 764                                         &dma->pgtbl_map, GFP_ATOMIC);
 765         if (dma->pgtbl == NULL)
 766                 goto error;
 767
 768         cp->setup_pgtbl(dev, dma);
 769
 770         return 0;
 771
 772 error:
 773         cnic_free_dma(dev, dma);
 774         return -ENOMEM;
 775 }
 776
 777 static void cnic_free_context(struct cnic_dev *dev)
 778 {
 779         struct cnic_local *cp = dev->cnic_priv;
 780         int i;
 781
 782         for (i = 0; i < cp->ctx_blks; i++) {
 783                 if (cp->ctx_arr[i].ctx) {
 784                         dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
 785                                           cp->ctx_arr[i].ctx,
 786                                           cp->ctx_arr[i].mapping);
 787                         cp->ctx_arr[i].ctx = NULL;
 788                 }
 789         }
 790 }
 791
 792 static void __cnic_free_uio(struct cnic_uio_dev *udev)
 793 {
 794         uio_unregister_device(&udev->cnic_uinfo);
 795
 796         if (udev->l2_buf) {
 797                 dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 798                                   udev->l2_buf, udev->l2_buf_map);
 799                 udev->l2_buf = NULL;
 800         }
 801
 802         if (udev->l2_ring) {
 803                 dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 804                                   udev->l2_ring, udev->l2_ring_map);
 805                 udev->l2_ring = NULL;
 806         }
 807
 808         pci_dev_put(udev->pdev);
 809         kfree(udev);
 810 }
 811
 812 static void cnic_free_uio(struct cnic_uio_dev *udev)
 813 {
 814         if (!udev)
 815                 return;
 816
 817         write_lock(&cnic_dev_lock);
 818         list_del_init(&udev->list);
 819         write_unlock(&cnic_dev_lock);
 820         __cnic_free_uio(udev);
 821 }
 822
 823 static void cnic_free_resc(struct cnic_dev *dev)
 824 {
 825         struct cnic_local *cp = dev->cnic_priv;
 826         struct cnic_uio_dev *udev = cp->udev;
 827
 828         if (udev) {
 829                 udev->dev = NULL;
 830                 cp->udev = NULL;
 831         }
 832
 833         cnic_free_context(dev);
 834         kfree(cp->ctx_arr);
 835         cp->ctx_arr = NULL;
 836         cp->ctx_blks = 0;
 837
 838         cnic_free_dma(dev, &cp->gbl_buf_info);
 839         cnic_free_dma(dev, &cp->conn_buf_info);
 840         cnic_free_dma(dev, &cp->kwq_info);
 841         cnic_free_dma(dev, &cp->kwq_16_data_info);
 842         cnic_free_dma(dev, &cp->kcq2.dma);
 843         cnic_free_dma(dev, &cp->kcq1.dma);
 844         kfree(cp->iscsi_tbl);
 845         cp->iscsi_tbl = NULL;
 846         kfree(cp->ctx_tbl);
 847         cp->ctx_tbl = NULL;
 848
 849         cnic_free_id_tbl(&cp->fcoe_cid_tbl);
 850         cnic_free_id_tbl(&cp->cid_tbl);
 851 }
 852
 853 static int cnic_alloc_context(struct cnic_dev *dev)
 854 {
 855         struct cnic_local *cp = dev->cnic_priv;
 856
 857         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
 858                 int i, k, arr_size;
 859
 860                 cp->ctx_blk_size = BCM_PAGE_SIZE;
 861                 cp->cids_per_blk = BCM_PAGE_SIZE / 128;
 862                 arr_size = BNX2_MAX_CID / cp->cids_per_blk *
 863                            sizeof(struct cnic_ctx);
 864                 cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
 865                 if (cp->ctx_arr == NULL)
 866                         return -ENOMEM;
 867
 868                 k = 0;
 869                 for (i = 0; i < 2; i++) {
 870                         u32 j, reg, off, lo, hi;
 871
 872                         if (i == 0)
 873                                 off = BNX2_PG_CTX_MAP;
 874                         else
 875                                 off = BNX2_ISCSI_CTX_MAP;
 876
 877                         reg = cnic_reg_rd_ind(dev, off);
 878                         lo = reg >> 16;
 879                         hi = reg & 0xffff;
 880                         for (j = lo; j < hi; j += cp->cids_per_blk, k++)
 881                                 cp->ctx_arr[k].cid = j;
 882                 }
 883
 884                 cp->ctx_blks = k;
 885                 if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
 886                         cp->ctx_blks = 0;
 887                         return -ENOMEM;
 888                 }
 889
 890                 for (i = 0; i < cp->ctx_blks; i++) {
 891                         cp->ctx_arr[i].ctx =
 892                                 dma_alloc_coherent(&dev->pcidev->dev,
 893                                                    BCM_PAGE_SIZE,
 894                                                    &cp->ctx_arr[i].mapping,
 895                                                    GFP_KERNEL);
 896                         if (cp->ctx_arr[i].ctx == NULL)
 897                                 return -ENOMEM;
 898                 }
 899         }
 900         return 0;
 901 }
 902
 903 static u16 cnic_bnx2_next_idx(u16 idx)
 904 {
 905         return idx + 1;
 906 }
 907
 908 static u16 cnic_bnx2_hw_idx(u16 idx)
 909 {
 910         return idx;
 911 }
 912
 913 static u16 cnic_bnx2x_next_idx(u16 idx)
 914 {
 915         idx++;
 916         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 917                 idx++;
 918
 919         return idx;
 920 }
 921
 922 static u16 cnic_bnx2x_hw_idx(u16 idx)
 923 {
 924         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 925                 idx++;
 926         return idx;
 927 }
 928
 929 static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info,
 930                           bool use_pg_tbl)
 931 {
 932         int err, i, use_page_tbl = 0;
 933         struct kcqe **kcq;
 934
 935         if (use_pg_tbl)
 936                 use_page_tbl = 1;
 937
 938         err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, use_page_tbl);
 939         if (err)
 940                 return err;
 941
 942         kcq = (struct kcqe **) info->dma.pg_arr;
 943         info->kcq = kcq;
 944
 945         info->next_idx = cnic_bnx2_next_idx;
 946         info->hw_idx = cnic_bnx2_hw_idx;
 947         if (use_pg_tbl)
 948                 return 0;
 949
 950         info->next_idx = cnic_bnx2x_next_idx;
 951         info->hw_idx = cnic_bnx2x_hw_idx;
 952
 953         for (i = 0; i < KCQ_PAGE_CNT; i++) {
 954                 struct bnx2x_bd_chain_next *next =
 955                         (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
 956                 int j = i + 1;
 957
 958                 if (j >= KCQ_PAGE_CNT)
 959                         j = 0;
 960                 next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
 961                 next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
 962         }
 963         return 0;
 964 }
 965
 966 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 967 {
 968         struct cnic_local *cp = dev->cnic_priv;
 969         struct cnic_uio_dev *udev;
 970
 971         read_lock(&cnic_dev_lock);
 972         list_for_each_entry(udev, &cnic_udev_list, list) {
 973                 if (udev->pdev == dev->pcidev) {
 974                         udev->dev = dev;
 975                         cp->udev = udev;
 976                         read_unlock(&cnic_dev_lock);
 977                         return 0;
 978                 }
 979         }
 980         read_unlock(&cnic_dev_lock);
 981
 982         udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
 983         if (!udev)
 984                 return -ENOMEM;
 985
 986         udev->uio_dev = -1;
 987
 988         udev->dev = dev;
 989         udev->pdev = dev->pcidev;
 990         udev->l2_ring_size = pages * BCM_PAGE_SIZE;
 991         udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
 992                                            &udev->l2_ring_map,
 993                                            GFP_KERNEL | __GFP_COMP);
 994         if (!udev->l2_ring)
 995                 goto err_udev;
 996
 997         udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
 998         udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
 999         udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
1000                                           &udev->l2_buf_map,
1001                                           GFP_KERNEL | __GFP_COMP);
1002         if (!udev->l2_buf)
1003                 goto err_dma;
1004
1005         write_lock(&cnic_dev_lock);
1006         list_add(&udev->list, &cnic_udev_list);
1007         write_unlock(&cnic_dev_lock);
1008
1009         pci_dev_get(udev->pdev);
1010
1011         cp->udev = udev;
1012
1013         return 0;
1014  err_dma:
1015         dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
1016                           udev->l2_ring, udev->l2_ring_map);
1017  err_udev:
1018         kfree(udev);
1019         return -ENOMEM;
1020 }
1021
1022 static int cnic_init_uio(struct cnic_dev *dev)
1023 {
1024         struct cnic_local *cp = dev->cnic_priv;
1025         struct cnic_uio_dev *udev = cp->udev;
1026         struct uio_info *uinfo;
1027         int ret = 0;
1028
1029         if (!udev)
1030                 return -ENOMEM;
1031
1032         uinfo = &udev->cnic_uinfo;
1033
1034         uinfo->mem[0].addr = dev->netdev->base_addr;
1035         uinfo->mem[0].internal_addr = dev->regview;
1036         uinfo->mem[0].size = dev->netdev->mem_end - dev->netdev->mem_start;
1037         uinfo->mem[0].memtype = UIO_MEM_PHYS;
1038
1039         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
1040                 uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
1041                                         PAGE_MASK;
1042                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
1043                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
1044                 else
1045                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
1046
1047                 uinfo->name = "bnx2_cnic";
1048         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1049                 uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
1050                         PAGE_MASK;
1051                 uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk);
1052
1053                 uinfo->name = "bnx2x_cnic";
1054         }
1055
1056         uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
1057
1058         uinfo->mem[2].addr = (unsigned long) udev->l2_ring;
1059         uinfo->mem[2].size = udev->l2_ring_size;
1060         uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
1061
1062         uinfo->mem[3].addr = (unsigned long) udev->l2_buf;
1063         uinfo->mem[3].size = udev->l2_buf_size;
1064         uinfo->mem[3].memtype = UIO_MEM_LOGICAL;
1065
1066         uinfo->version = CNIC_MODULE_VERSION;
1067         uinfo->irq = UIO_IRQ_CUSTOM;
1068
1069         uinfo->open = cnic_uio_open;
1070         uinfo->release = cnic_uio_close;
1071
1072         if (udev->uio_dev == -1) {
1073                 if (!uinfo->priv) {
1074                         uinfo->priv = udev;
1075
1076                         ret = uio_register_device(&udev->pdev->dev, uinfo);
1077                 }
1078         } else {
1079                 cnic_init_rings(dev);
1080         }
1081
1082         return ret;
1083 }
1084
1085 static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
1086 {
1087         struct cnic_local *cp = dev->cnic_priv;
1088         int ret;
1089
1090         ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
1091         if (ret)
1092                 goto error;
1093         cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
1094
1095         ret = cnic_alloc_kcq(dev, &cp->kcq1, true);
1096         if (ret)
1097                 goto error;
1098
1099         ret = cnic_alloc_context(dev);
1100         if (ret)
1101                 goto error;
1102
1103         ret = cnic_alloc_uio_rings(dev, 2);
1104         if (ret)
1105                 goto error;
1106
1107         ret = cnic_init_uio(dev);
1108         if (ret)
1109                 goto error;
1110
1111         return 0;
1112
1113 error:
1114         cnic_free_resc(dev);
1115         return ret;
1116 }
1117
1118 static int cnic_alloc_bnx2x_context(struct cnic_dev *dev)
1119 {
1120         struct cnic_local *cp = dev->cnic_priv;
1121         int ctx_blk_size = cp->ethdev->ctx_blk_size;
1122         int total_mem, blks, i;
1123
1124         total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
1125         blks = total_mem / ctx_blk_size;
1126         if (total_mem % ctx_blk_size)
1127                 blks++;
1128
1129         if (blks > cp->ethdev->ctx_tbl_len)
1130                 return -ENOMEM;
1131
1132         cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL);
1133         if (cp->ctx_arr == NULL)
1134                 return -ENOMEM;
1135
1136         cp->ctx_blks = blks;
1137         cp->ctx_blk_size = ctx_blk_size;
1138         if (!BNX2X_CHIP_IS_57710(cp->chip_id))
1139                 cp->ctx_align = 0;
1140         else
1141                 cp->ctx_align = ctx_blk_size;
1142
1143         cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
1144
1145         for (i = 0; i < blks; i++) {
1146                 cp->ctx_arr[i].ctx =
1147                         dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
1148                                            &cp->ctx_arr[i].mapping,
1149                                            GFP_KERNEL);
1150                 if (cp->ctx_arr[i].ctx == NULL)
1151                         return -ENOMEM;
1152
1153                 if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
1154                         if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
1155                                 cnic_free_context(dev);
1156                                 cp->ctx_blk_size += cp->ctx_align;
1157                                 i = -1;
1158                                 continue;
1159                         }
1160                 }
1161         }
1162         return 0;
1163 }
1164
1165 static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
1166 {
1167         struct cnic_local *cp = dev->cnic_priv;
1168         struct cnic_eth_dev *ethdev = cp->ethdev;
1169         u32 start_cid = ethdev->starting_cid;
1170         int i, j, n, ret, pages;
1171         struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
1172
1173         cp->iro_arr = ethdev->iro_arr;
1174
1175         cp->max_cid_space = MAX_ISCSI_TBL_SZ + BNX2X_FCOE_NUM_CONNECTIONS;
1176         cp->iscsi_start_cid = start_cid;
1177         cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ;
1178
1179         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
1180                 cp->max_cid_space += BNX2X_FCOE_NUM_CONNECTIONS;
1181                 cp->fcoe_init_cid = ethdev->fcoe_init_cid;
1182                 if (!cp->fcoe_init_cid)
1183                         cp->fcoe_init_cid = 0x10;
1184         }
1185
1186         if (start_cid < BNX2X_ISCSI_START_CID) {
1187                 u32 delta = BNX2X_ISCSI_START_CID - start_cid;
1188
1189                 cp->iscsi_start_cid = BNX2X_ISCSI_START_CID;
1190                 cp->fcoe_start_cid += delta;
1191                 cp->max_cid_space += delta;
1192         }
1193
1194         cp->iscsi_tbl = kzalloc(sizeof(struct cnic_iscsi) * MAX_ISCSI_TBL_SZ,
1195                                 GFP_KERNEL);
1196         if (!cp->iscsi_tbl)
1197                 goto error;
1198
1199         cp->ctx_tbl = kzalloc(sizeof(struct cnic_context) *
1200                                 cp->max_cid_space, GFP_KERNEL);
1201         if (!cp->ctx_tbl)
1202                 goto error;
1203
1204         for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) {
1205                 cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i];
1206                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI;
1207         }
1208
1209         for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++)
1210                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE;
1211
1212         pages = PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
1213                 PAGE_SIZE;
1214
1215         ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
1216         if (ret)
1217                 return -ENOMEM;
1218
1219         n = PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
1220         for (i = 0, j = 0; i < cp->max_cid_space; i++) {
1221                 long off = CNIC_KWQ16_DATA_SIZE * (i % n);
1222
1223                 cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off;
1224                 cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] +
1225                                                    off;
1226
1227                 if ((i % n) == (n - 1))
1228                         j++;
1229         }
1230
1231         ret = cnic_alloc_kcq(dev, &cp->kcq1, false);
1232         if (ret)
1233                 goto error;
1234
1235         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
1236                 ret = cnic_alloc_kcq(dev, &cp->kcq2, false);
1237                 if (ret)
1238                         goto error;
1239         }
1240
1241         pages = PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS *
1242                            BNX2X_ISCSI_CONN_BUF_SIZE) / PAGE_SIZE;
1243         ret = cnic_alloc_dma(dev, &cp->conn_buf_info, pages, 1);
1244         if (ret)
1245                 goto error;
1246
1247         pages = PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / PAGE_SIZE;
1248         ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0);
1249         if (ret)
1250                 goto error;
1251
1252         ret = cnic_alloc_bnx2x_context(dev);
1253         if (ret)
1254                 goto error;
1255
1256         cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
1257
1258         cp->l2_rx_ring_size = 15;
1259
1260         ret = cnic_alloc_uio_rings(dev, 4);
1261         if (ret)
1262                 goto error;
1263
1264         ret = cnic_init_uio(dev);
1265         if (ret)
1266                 goto error;
1267
1268         return 0;
1269
1270 error:
1271         cnic_free_resc(dev);
1272         return -ENOMEM;
1273 }
1274
1275 static inline u32 cnic_kwq_avail(struct cnic_local *cp)
1276 {
1277         return cp->max_kwq_idx -
1278                 ((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx);
1279 }
1280
1281 static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
1282                                   u32 num_wqes)
1283 {
1284         struct cnic_local *cp = dev->cnic_priv;
1285         struct kwqe *prod_qe;
1286         u16 prod, sw_prod, i;
1287
1288         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
1289                 return -EAGAIN;         /* bnx2 is down */
1290
1291         spin_lock_bh(&cp->cnic_ulp_lock);
1292         if (num_wqes > cnic_kwq_avail(cp) &&
1293             !test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) {
1294                 spin_unlock_bh(&cp->cnic_ulp_lock);
1295                 return -EAGAIN;
1296         }
1297
1298         clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
1299
1300         prod = cp->kwq_prod_idx;
1301         sw_prod = prod & MAX_KWQ_IDX;
1302         for (i = 0; i < num_wqes; i++) {
1303                 prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)];
1304                 memcpy(prod_qe, wqes[i], sizeof(struct kwqe));
1305                 prod++;
1306                 sw_prod = prod & MAX_KWQ_IDX;
1307         }
1308         cp->kwq_prod_idx = prod;
1309
1310         CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx);
1311
1312         spin_unlock_bh(&cp->cnic_ulp_lock);
1313         return 0;
1314 }
1315
1316 static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid,
1317                                    union l5cm_specific_data *l5_data)
1318 {
1319         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1320         dma_addr_t map;
1321
1322         map = ctx->kwqe_data_mapping;
1323         l5_data->phy_address.lo = (u64) map & 0xffffffff;
1324         l5_data->phy_address.hi = (u64) map >> 32;
1325         return ctx->kwqe_data;
1326 }
1327
1328 static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid,
1329                                 u32 type, union l5cm_specific_data *l5_data)
1330 {
1331         struct cnic_local *cp = dev->cnic_priv;
1332         struct l5cm_spe kwqe;
1333         struct kwqe_16 *kwq[1];
1334         u16 type_16;
1335         int ret;
1336
1337         kwqe.hdr.conn_and_cmd_data =
1338                 cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
1339                              BNX2X_HW_CID(cp, cid)));
1340
1341         type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
1342         type_16 |= (cp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
1343                    SPE_HDR_FUNCTION_ID;
1344
1345         kwqe.hdr.type = cpu_to_le16(type_16);
1346         kwqe.hdr.reserved1 = 0;
1347         kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
1348         kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
1349
1350         kwq[0] = (struct kwqe_16 *) &kwqe;
1351
1352         spin_lock_bh(&cp->cnic_ulp_lock);
1353         ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
1354         spin_unlock_bh(&cp->cnic_ulp_lock);
1355
1356         if (ret == 1)
1357                 return 0;
1358
1359         return -EBUSY;
1360 }
1361
1362 static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
1363                                    struct kcqe *cqes[], u32 num_cqes)
1364 {
1365         struct cnic_local *cp = dev->cnic_priv;
1366         struct cnic_ulp_ops *ulp_ops;
1367
1368         rcu_read_lock();
1369         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
1370         if (likely(ulp_ops)) {
1371                 ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
1372                                           cqes, num_cqes);
1373         }
1374         rcu_read_unlock();
1375 }
1376
1377 static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
1378 {
1379         struct cnic_local *cp = dev->cnic_priv;
1380         struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
1381         int hq_bds, pages;
1382         u32 pfid = cp->pfid;
1383
1384         cp->num_iscsi_tasks = req1->num_tasks_per_conn;
1385         cp->num_ccells = req1->num_ccells_per_conn;
1386         cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
1387                               cp->num_iscsi_tasks;
1388         cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
1389                         BNX2X_ISCSI_R2TQE_SIZE;
1390         cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
1391         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1392         hq_bds = pages * (PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
1393         cp->num_cqs = req1->num_cqs;
1394
1395         if (!dev->max_iscsi_conn)
1396                 return 0;
1397
1398         /* init Tstorm RAM */
1399         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1400                   req1->rq_num_wqes);
1401         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1402                   PAGE_SIZE);
1403         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1404                  TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1405         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1406                   TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1407                   req1->num_tasks_per_conn);
1408
1409         /* init Ustorm RAM */
1410         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1411                   USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
1412                   req1->rq_buffer_size);
1413         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1414                   PAGE_SIZE);
1415         CNIC_WR8(dev, BAR_USTRORM_INTMEM +
1416                  USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1417         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1418                   USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1419                   req1->num_tasks_per_conn);
1420         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1421                   req1->rq_num_wqes);
1422         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1423                   req1->cq_num_wqes);
1424         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1425                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1426
1427         /* init Xstorm RAM */
1428         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1429                   PAGE_SIZE);
1430         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1431                  XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1432         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
1433                   XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1434                   req1->num_tasks_per_conn);
1435         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1436                   hq_bds);
1437         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
1438                   req1->num_tasks_per_conn);
1439         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1440                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1441
1442         /* init Cstorm RAM */
1443         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1444                   PAGE_SIZE);
1445         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
1446                  CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1447         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1448                   CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1449                   req1->num_tasks_per_conn);
1450         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1451                   req1->cq_num_wqes);
1452         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1453                   hq_bds);
1454
1455         return 0;
1456 }
1457
1458 static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
1459 {
1460         struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
1461         struct cnic_local *cp = dev->cnic_priv;
1462         u32 pfid = cp->pfid;
1463         struct iscsi_kcqe kcqe;
1464         struct kcqe *cqes[1];
1465
1466         memset(&kcqe, 0, sizeof(kcqe));
1467         if (!dev->max_iscsi_conn) {
1468                 kcqe.completion_status =
1469                         ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
1470                 goto done;
1471         }
1472
1473         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1474                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1475         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1476                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1477                 req2->error_bit_map[1]);
1478
1479         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1480                   USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1481         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1482                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1483         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1484                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1485                 req2->error_bit_map[1]);
1486
1487         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1488                   CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1489
1490         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1491
1492 done:
1493         kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
1494         cqes[0] = (struct kcqe *) &kcqe;
1495         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1496
1497         return 0;
1498 }
1499
1500 static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1501 {
1502         struct cnic_local *cp = dev->cnic_priv;
1503         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1504
1505         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
1506                 struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1507
1508                 cnic_free_dma(dev, &iscsi->hq_info);
1509                 cnic_free_dma(dev, &iscsi->r2tq_info);
1510                 cnic_free_dma(dev, &iscsi->task_array_info);
1511                 cnic_free_id(&cp->cid_tbl, ctx->cid);
1512         } else {
1513                 cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid);
1514         }
1515
1516         ctx->cid = 0;
1517 }
1518
1519 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1520 {
1521         u32 cid;
1522         int ret, pages;
1523         struct cnic_local *cp = dev->cnic_priv;
1524         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1525         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1526
1527         if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
1528                 cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
1529                 if (cid == -1) {
1530                         ret = -ENOMEM;
1531                         goto error;
1532                 }
1533                 ctx->cid = cid;
1534                 return 0;
1535         }
1536
1537         cid = cnic_alloc_new_id(&cp->cid_tbl);
1538         if (cid == -1) {
1539                 ret = -ENOMEM;
1540                 goto error;
1541         }
1542
1543         ctx->cid = cid;
1544         pages = PAGE_ALIGN(cp->task_array_size) / PAGE_SIZE;
1545
1546         ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
1547         if (ret)
1548                 goto error;
1549
1550         pages = PAGE_ALIGN(cp->r2tq_size) / PAGE_SIZE;
1551         ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
1552         if (ret)
1553                 goto error;
1554
1555         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1556         ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
1557         if (ret)
1558                 goto error;
1559
1560         return 0;
1561
1562 error:
1563         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1564         return ret;
1565 }
1566
1567 static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
1568                                 struct regpair *ctx_addr)
1569 {
1570         struct cnic_local *cp = dev->cnic_priv;
1571         struct cnic_eth_dev *ethdev = cp->ethdev;
1572         int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
1573         int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
1574         unsigned long align_off = 0;
1575         dma_addr_t ctx_map;
1576         void *ctx;
1577
1578         if (cp->ctx_align) {
1579                 unsigned long mask = cp->ctx_align - 1;
1580
1581                 if (cp->ctx_arr[blk].mapping & mask)
1582                         align_off = cp->ctx_align -
1583                                     (cp->ctx_arr[blk].mapping & mask);
1584         }
1585         ctx_map = cp->ctx_arr[blk].mapping + align_off +
1586                 (off * BNX2X_CONTEXT_MEM_SIZE);
1587         ctx = cp->ctx_arr[blk].ctx + align_off +
1588               (off * BNX2X_CONTEXT_MEM_SIZE);
1589         if (init)
1590                 memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
1591
1592         ctx_addr->lo = ctx_map & 0xffffffff;
1593         ctx_addr->hi = (u64) ctx_map >> 32;
1594         return ctx;
1595 }
1596
1597 static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
1598                                 u32 num)
1599 {
1600         struct cnic_local *cp = dev->cnic_priv;
1601         struct iscsi_kwqe_conn_offload1 *req1 =
1602                         (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1603         struct iscsi_kwqe_conn_offload2 *req2 =
1604                         (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1605         struct iscsi_kwqe_conn_offload3 *req3;
1606         struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
1607         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1608         u32 cid = ctx->cid;
1609         u32 hw_cid = BNX2X_HW_CID(cp, cid);
1610         struct iscsi_context *ictx;
1611         struct regpair context_addr;
1612         int i, j, n = 2, n_max;
1613
1614         ctx->ctx_flags = 0;
1615         if (!req2->num_additional_wqes)
1616                 return -EINVAL;
1617
1618         n_max = req2->num_additional_wqes + 2;
1619
1620         ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
1621         if (ictx == NULL)
1622                 return -ENOMEM;
1623
1624         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1625
1626         ictx->xstorm_ag_context.hq_prod = 1;
1627
1628         ictx->xstorm_st_context.iscsi.first_burst_length =
1629                 ISCSI_DEF_FIRST_BURST_LEN;
1630         ictx->xstorm_st_context.iscsi.max_send_pdu_length =
1631                 ISCSI_DEF_MAX_RECV_SEG_LEN;
1632         ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
1633                 req1->sq_page_table_addr_lo;
1634         ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
1635                 req1->sq_page_table_addr_hi;
1636         ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
1637         ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
1638         ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
1639                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1640         ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
1641                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1642         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
1643                 iscsi->hq_info.pgtbl[0];
1644         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
1645                 iscsi->hq_info.pgtbl[1];
1646         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
1647                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1648         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
1649                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1650         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
1651                 iscsi->r2tq_info.pgtbl[0];
1652         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
1653                 iscsi->r2tq_info.pgtbl[1];
1654         ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
1655                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1656         ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
1657                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1658         ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
1659                 BNX2X_ISCSI_PBL_NOT_CACHED;
1660         ictx->xstorm_st_context.iscsi.flags.flags |=
1661                 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
1662         ictx->xstorm_st_context.iscsi.flags.flags |=
1663                 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
1664
1665         ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
1666         /* TSTORM requires the base address of RQ DB & not PTE */
1667         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
1668                 req2->rq_page_table_addr_lo & PAGE_MASK;
1669         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
1670                 req2->rq_page_table_addr_hi;
1671         ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
1672         ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
1673         ictx->tstorm_st_context.tcp.flags2 |=
1674                 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
1675         ictx->tstorm_st_context.tcp.ooo_support_mode =
1676                 TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
1677
1678         ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
1679
1680         ictx->ustorm_st_context.ring.rq.pbl_base.lo =
1681                 req2->rq_page_table_addr_lo;
1682         ictx->ustorm_st_context.ring.rq.pbl_base.hi =
1683                 req2->rq_page_table_addr_hi;
1684         ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
1685         ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
1686         ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
1687                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1688         ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
1689                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1690         ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
1691                 iscsi->r2tq_info.pgtbl[0];
1692         ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
1693                 iscsi->r2tq_info.pgtbl[1];
1694         ictx->ustorm_st_context.ring.cq_pbl_base.lo =
1695                 req1->cq_page_table_addr_lo;
1696         ictx->ustorm_st_context.ring.cq_pbl_base.hi =
1697                 req1->cq_page_table_addr_hi;
1698         ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
1699         ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
1700         ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
1701         ictx->ustorm_st_context.task_pbe_cache_index =
1702                 BNX2X_ISCSI_PBL_NOT_CACHED;
1703         ictx->ustorm_st_context.task_pdu_cache_index =
1704                 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
1705
1706         for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
1707                 if (j == 3) {
1708                         if (n >= n_max)
1709                                 break;
1710                         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1711                         j = 0;
1712                 }
1713                 ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
1714                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
1715                         req3->qp_first_pte[j].hi;
1716                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
1717                         req3->qp_first_pte[j].lo;
1718         }
1719
1720         ictx->ustorm_st_context.task_pbl_base.lo =
1721                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1722         ictx->ustorm_st_context.task_pbl_base.hi =
1723                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1724         ictx->ustorm_st_context.tce_phy_addr.lo =
1725                 iscsi->task_array_info.pgtbl[0];
1726         ictx->ustorm_st_context.tce_phy_addr.hi =
1727                 iscsi->task_array_info.pgtbl[1];
1728         ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1729         ictx->ustorm_st_context.num_cqs = cp->num_cqs;
1730         ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
1731         ictx->ustorm_st_context.negotiated_rx_and_flags |=
1732                 ISCSI_DEF_MAX_BURST_LEN;
1733         ictx->ustorm_st_context.negotiated_rx |=
1734                 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
1735                 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
1736
1737         ictx->cstorm_st_context.hq_pbl_base.lo =
1738                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1739         ictx->cstorm_st_context.hq_pbl_base.hi =
1740                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1741         ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
1742         ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
1743         ictx->cstorm_st_context.task_pbl_base.lo =
1744                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1745         ictx->cstorm_st_context.task_pbl_base.hi =
1746                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1747         /* CSTORM and USTORM initialization is different, CSTORM requires
1748          * CQ DB base & not PTE addr */
1749         ictx->cstorm_st_context.cq_db_base.lo =
1750                 req1->cq_page_table_addr_lo & PAGE_MASK;
1751         ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
1752         ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1753         ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
1754         for (i = 0; i < cp->num_cqs; i++) {
1755                 ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
1756                         ISCSI_INITIAL_SN;
1757                 ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
1758                         ISCSI_INITIAL_SN;
1759         }
1760
1761         ictx->xstorm_ag_context.cdu_reserved =
1762                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
1763                                        ISCSI_CONNECTION_TYPE);
1764         ictx->ustorm_ag_context.cdu_usage =
1765                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
1766                                        ISCSI_CONNECTION_TYPE);
1767         return 0;
1768
1769 }
1770
1771 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
1772                                    u32 num, int *work)
1773 {
1774         struct iscsi_kwqe_conn_offload1 *req1;
1775         struct iscsi_kwqe_conn_offload2 *req2;
1776         struct cnic_local *cp = dev->cnic_priv;
1777         struct cnic_context *ctx;
1778         struct iscsi_kcqe kcqe;
1779         struct kcqe *cqes[1];
1780         u32 l5_cid;
1781         int ret = 0;
1782
1783         if (num < 2) {
1784                 *work = num;
1785                 return -EINVAL;
1786         }
1787
1788         req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1789         req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1790         if ((num - 2) < req2->num_additional_wqes) {
1791                 *work = num;
1792                 return -EINVAL;
1793         }
1794         *work = 2 + req2->num_additional_wqes;
1795
1796         l5_cid = req1->iscsi_conn_id;
1797         if (l5_cid >= MAX_ISCSI_TBL_SZ)
1798                 return -EINVAL;
1799
1800         memset(&kcqe, 0, sizeof(kcqe));
1801         kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
1802         kcqe.iscsi_conn_id = l5_cid;
1803         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
1804
1805         ctx = &cp->ctx_tbl[l5_cid];
1806         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
1807                 kcqe.completion_status =
1808                         ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
1809                 goto done;
1810         }
1811
1812         if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
1813                 atomic_dec(&cp->iscsi_conn);
1814                 goto done;
1815         }
1816         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
1817         if (ret) {
1818                 atomic_dec(&cp->iscsi_conn);
1819                 ret = 0;
1820                 goto done;
1821         }
1822         ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
1823         if (ret < 0) {
1824                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
1825                 atomic_dec(&cp->iscsi_conn);
1826                 goto done;
1827         }
1828
1829         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1830         kcqe.iscsi_conn_context_id = BNX2X_HW_CID(cp, cp->ctx_tbl[l5_cid].cid);
1831
1832 done:
1833         cqes[0] = (struct kcqe *) &kcqe;
1834         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1835         return ret;
1836 }
1837
1838
1839 static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
1840 {
1841         struct cnic_local *cp = dev->cnic_priv;
1842         struct iscsi_kwqe_conn_update *req =
1843                 (struct iscsi_kwqe_conn_update *) kwqe;
1844         void *data;
1845         union l5cm_specific_data l5_data;
1846         u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
1847         int ret;
1848
1849         if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
1850                 return -EINVAL;
1851
1852         data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
1853         if (!data)
1854                 return -ENOMEM;
1855
1856         memcpy(data, kwqe, sizeof(struct kwqe));
1857
1858         ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
1859                         req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
1860         return ret;
1861 }
1862
1863 static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
1864 {
1865         struct cnic_local *cp = dev->cnic_priv;
1866         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1867         union l5cm_specific_data l5_data;
1868         int ret;
1869         u32 hw_cid;
1870
1871         init_waitqueue_head(&ctx->waitq);
1872         ctx->wait_cond = 0;
1873         memset(&l5_data, 0, sizeof(l5_data));
1874         hw_cid = BNX2X_HW_CID(cp, ctx->cid);
1875
1876         ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
1877                                   hw_cid, NONE_CONNECTION_TYPE, &l5_data);
1878
1879         if (ret == 0)
1880                 wait_event(ctx->waitq, ctx->wait_cond);
1881
1882         return ret;
1883 }
1884
1885 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
1886 {
1887         struct cnic_local *cp = dev->cnic_priv;
1888         struct iscsi_kwqe_conn_destroy *req =
1889                 (struct iscsi_kwqe_conn_destroy *) kwqe;
1890         u32 l5_cid = req->reserved0;
1891         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1892         int ret = 0;
1893         struct iscsi_kcqe kcqe;
1894         struct kcqe *cqes[1];
1895
1896         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
1897                 goto skip_cfc_delete;
1898
1899         if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
1900                 unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
1901
1902                 if (delta > (2 * HZ))
1903                         delta = 0;
1904
1905                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
1906                 queue_delayed_work(cnic_wq, &cp->delete_task, delta);
1907                 goto destroy_reply;
1908         }
1909
1910         ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
1911
1912 skip_cfc_delete:
1913         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1914
1915         atomic_dec(&cp->iscsi_conn);
1916         clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
1917
1918 destroy_reply:
1919         memset(&kcqe, 0, sizeof(kcqe));
1920         kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
1921         kcqe.iscsi_conn_id = l5_cid;
1922         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1923         kcqe.iscsi_conn_context_id = req->context_id;
1924
1925         cqes[0] = (struct kcqe *) &kcqe;
1926         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1927
1928         return ret;
1929 }
1930
1931 static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
1932                                       struct l4_kwq_connect_req1 *kwqe1,
1933                                       struct l4_kwq_connect_req3 *kwqe3,
1934                                       struct l5cm_active_conn_buffer *conn_buf)
1935 {
1936         struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
1937         struct l5cm_xstorm_conn_buffer *xstorm_buf =
1938                 &conn_buf->xstorm_conn_buffer;
1939         struct l5cm_tstorm_conn_buffer *tstorm_buf =
1940                 &conn_buf->tstorm_conn_buffer;
1941         struct regpair context_addr;
1942         u32 cid = BNX2X_SW_CID(kwqe1->cid);
1943         struct in6_addr src_ip, dst_ip;
1944         int i;
1945         u32 *addrp;
1946
1947         addrp = (u32 *) &conn_addr->local_ip_addr;
1948         for (i = 0; i < 4; i++, addrp++)
1949                 src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1950
1951         addrp = (u32 *) &conn_addr->remote_ip_addr;
1952         for (i = 0; i < 4; i++, addrp++)
1953                 dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1954
1955         cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
1956
1957         xstorm_buf->context_addr.hi = context_addr.hi;
1958         xstorm_buf->context_addr.lo = context_addr.lo;
1959         xstorm_buf->mss = 0xffff;
1960         xstorm_buf->rcv_buf = kwqe3->rcv_buf;
1961         if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
1962                 xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
1963         xstorm_buf->pseudo_header_checksum =
1964                 swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
1965
1966         if (!(kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK))
1967                 tstorm_buf->params |=
1968                         L5CM_TSTORM_CONN_BUFFER_DELAYED_ACK_ENABLE;
1969         if (kwqe3->ka_timeout) {
1970                 tstorm_buf->ka_enable = 1;
1971                 tstorm_buf->ka_timeout = kwqe3->ka_timeout;
1972                 tstorm_buf->ka_interval = kwqe3->ka_interval;
1973                 tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
1974         }
1975         tstorm_buf->rcv_buf = kwqe3->rcv_buf;
1976         tstorm_buf->snd_buf = kwqe3->snd_buf;
1977         tstorm_buf->max_rt_time = 0xffffffff;
1978 }
1979
1980 static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
1981 {
1982         struct cnic_local *cp = dev->cnic_priv;
1983         u32 pfid = cp->pfid;
1984         u8 *mac = dev->mac_addr;
1985
1986         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1987                  XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
1988         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1989                  XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
1990         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1991                  XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
1992         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1993                  XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
1994         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1995                  XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
1996         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1997                  XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
1998
1999         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2000                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
2001         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2002                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2003                  mac[4]);
2004         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2005                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
2006         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2007                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2008                  mac[2]);
2009         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2010                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 2,
2011                  mac[1]);
2012         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2013                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 3,
2014                  mac[0]);
2015 }
2016
2017 static void cnic_bnx2x_set_tcp_timestamp(struct cnic_dev *dev, int tcp_ts)
2018 {
2019         struct cnic_local *cp = dev->cnic_priv;
2020         u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
2021         u16 tstorm_flags = 0;
2022
2023         if (tcp_ts) {
2024                 xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
2025                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
2026         }
2027
2028         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2029                  XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), xstorm_flags);
2030
2031         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
2032                   TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), tstorm_flags);
2033 }
2034
2035 static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
2036                               u32 num, int *work)
2037 {
2038         struct cnic_local *cp = dev->cnic_priv;
2039         struct l4_kwq_connect_req1 *kwqe1 =
2040                 (struct l4_kwq_connect_req1 *) wqes[0];
2041         struct l4_kwq_connect_req3 *kwqe3;
2042         struct l5cm_active_conn_buffer *conn_buf;
2043         struct l5cm_conn_addr_params *conn_addr;
2044         union l5cm_specific_data l5_data;
2045         u32 l5_cid = kwqe1->pg_cid;
2046         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
2047         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2048         int ret;
2049
2050         if (num < 2) {
2051                 *work = num;
2052                 return -EINVAL;
2053         }
2054
2055         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
2056                 *work = 3;
2057         else
2058                 *work = 2;
2059
2060         if (num < *work) {
2061                 *work = num;
2062                 return -EINVAL;
2063         }
2064
2065         if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
2066                 netdev_err(dev->netdev, "conn_buf size too big\n");
2067                 return -ENOMEM;
2068         }
2069         conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2070         if (!conn_buf)
2071                 return -ENOMEM;
2072
2073         memset(conn_buf, 0, sizeof(*conn_buf));
2074
2075         conn_addr = &conn_buf->conn_addr_buf;
2076         conn_addr->remote_addr_0 = csk->ha[0];
2077         conn_addr->remote_addr_1 = csk->ha[1];
2078         conn_addr->remote_addr_2 = csk->ha[2];
2079         conn_addr->remote_addr_3 = csk->ha[3];
2080         conn_addr->remote_addr_4 = csk->ha[4];
2081         conn_addr->remote_addr_5 = csk->ha[5];
2082
2083         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
2084                 struct l4_kwq_connect_req2 *kwqe2 =
2085                         (struct l4_kwq_connect_req2 *) wqes[1];
2086
2087                 conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
2088                 conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
2089                 conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
2090
2091                 conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
2092                 conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
2093                 conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
2094                 conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
2095         }
2096         kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
2097
2098         conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
2099         conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
2100         conn_addr->local_tcp_port = kwqe1->src_port;
2101         conn_addr->remote_tcp_port = kwqe1->dst_port;
2102
2103         conn_addr->pmtu = kwqe3->pmtu;
2104         cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
2105
2106         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
2107                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(cp->pfid), csk->vlan_id);
2108
2109         cnic_bnx2x_set_tcp_timestamp(dev,
2110                 kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_TIME_STAMP);
2111
2112         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
2113                         kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2114         if (!ret)
2115                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2116
2117         return ret;
2118 }
2119
2120 static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
2121 {
2122         struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
2123         union l5cm_specific_data l5_data;
2124         int ret;
2125
2126         memset(&l5_data, 0, sizeof(l5_data));
2127         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
2128                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2129         return ret;
2130 }
2131
2132 static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
2133 {
2134         struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
2135         union l5cm_specific_data l5_data;
2136         int ret;
2137
2138         memset(&l5_data, 0, sizeof(l5_data));
2139         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
2140                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2141         return ret;
2142 }
2143 static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2144 {
2145         struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
2146         struct l4_kcq kcqe;
2147         struct kcqe *cqes[1];
2148
2149         memset(&kcqe, 0, sizeof(kcqe));
2150         kcqe.pg_host_opaque = req->host_opaque;
2151         kcqe.pg_cid = req->host_opaque;
2152         kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
2153         cqes[0] = (struct kcqe *) &kcqe;
2154         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2155         return 0;
2156 }
2157
2158 static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2159 {
2160         struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
2161         struct l4_kcq kcqe;
2162         struct kcqe *cqes[1];
2163
2164         memset(&kcqe, 0, sizeof(kcqe));
2165         kcqe.pg_host_opaque = req->pg_host_opaque;
2166         kcqe.pg_cid = req->pg_cid;
2167         kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
2168         cqes[0] = (struct kcqe *) &kcqe;
2169         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2170         return 0;
2171 }
2172
2173 static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
2174 {
2175         struct fcoe_kwqe_stat *req;
2176         struct fcoe_stat_ramrod_params *fcoe_stat;
2177         union l5cm_specific_data l5_data;
2178         struct cnic_local *cp = dev->cnic_priv;
2179         int ret;
2180         u32 cid;
2181
2182         req = (struct fcoe_kwqe_stat *) kwqe;
2183         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2184
2185         fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2186         if (!fcoe_stat)
2187                 return -ENOMEM;
2188
2189         memset(fcoe_stat, 0, sizeof(*fcoe_stat));
2190         memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
2191
2192         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT, cid,
2193                                   FCOE_CONNECTION_TYPE, &l5_data);
2194         return ret;
2195 }
2196
2197 static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
2198                                  u32 num, int *work)
2199 {
2200         int ret;
2201         struct cnic_local *cp = dev->cnic_priv;
2202         u32 cid;
2203         struct fcoe_init_ramrod_params *fcoe_init;
2204         struct fcoe_kwqe_init1 *req1;
2205         struct fcoe_kwqe_init2 *req2;
2206         struct fcoe_kwqe_init3 *req3;
2207         union l5cm_specific_data l5_data;
2208
2209         if (num < 3) {
2210                 *work = num;
2211                 return -EINVAL;
2212         }
2213         req1 = (struct fcoe_kwqe_init1 *) wqes[0];
2214         req2 = (struct fcoe_kwqe_init2 *) wqes[1];
2215         req3 = (struct fcoe_kwqe_init3 *) wqes[2];
2216         if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
2217                 *work = 1;
2218                 return -EINVAL;
2219         }
2220         if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
2221                 *work = 2;
2222                 return -EINVAL;
2223         }
2224
2225         if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
2226                 netdev_err(dev->netdev, "fcoe_init size too big\n");
2227                 return -ENOMEM;
2228         }
2229         fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2230         if (!fcoe_init)
2231                 return -ENOMEM;
2232
2233         memset(fcoe_init, 0, sizeof(*fcoe_init));
2234         memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
2235         memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
2236         memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
2237         fcoe_init->eq_addr.lo = cp->kcq2.dma.pg_map_arr[0] & 0xffffffff;
2238         fcoe_init->eq_addr.hi = (u64) cp->kcq2.dma.pg_map_arr[0] >> 32;
2239         fcoe_init->eq_next_page_addr.lo =
2240                 cp->kcq2.dma.pg_map_arr[1] & 0xffffffff;
2241         fcoe_init->eq_next_page_addr.hi =
2242                 (u64) cp->kcq2.dma.pg_map_arr[1] >> 32;
2243
2244         fcoe_init->sb_num = cp->status_blk_num;
2245         fcoe_init->eq_prod = MAX_KCQ_IDX;
2246         fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
2247         cp->kcq2.sw_prod_idx = 0;
2248
2249         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2250         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT, cid,
2251                                   FCOE_CONNECTION_TYPE, &l5_data);
2252         *work = 3;
2253         return ret;
2254 }
2255
2256 static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
2257                                  u32 num, int *work)
2258 {
2259         int ret = 0;
2260         u32 cid = -1, l5_cid;
2261         struct cnic_local *cp = dev->cnic_priv;
2262         struct fcoe_kwqe_conn_offload1 *req1;
2263         struct fcoe_kwqe_conn_offload2 *req2;
2264         struct fcoe_kwqe_conn_offload3 *req3;
2265         struct fcoe_kwqe_conn_offload4 *req4;
2266         struct fcoe_conn_offload_ramrod_params *fcoe_offload;
2267         struct cnic_context *ctx;
2268         struct fcoe_context *fctx;
2269         struct regpair ctx_addr;
2270         union l5cm_specific_data l5_data;
2271         struct fcoe_kcqe kcqe;
2272         struct kcqe *cqes[1];
2273
2274         if (num < 4) {
2275                 *work = num;
2276                 return -EINVAL;
2277         }
2278         req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
2279         req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
2280         req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
2281         req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
2282
2283         *work = 4;
2284
2285         l5_cid = req1->fcoe_conn_id;
2286         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2287                 goto err_reply;
2288
2289         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2290
2291         ctx = &cp->ctx_tbl[l5_cid];
2292         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2293                 goto err_reply;
2294
2295         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
2296         if (ret) {
2297                 ret = 0;
2298                 goto err_reply;
2299         }
2300         cid = ctx->cid;
2301
2302         fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
2303         if (fctx) {
2304                 u32 hw_cid = BNX2X_HW_CID(cp, cid);
2305                 u32 val;
2306
2307                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
2308                                              FCOE_CONNECTION_TYPE);
2309                 fctx->xstorm_ag_context.cdu_reserved = val;
2310                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
2311                                              FCOE_CONNECTION_TYPE);
2312                 fctx->ustorm_ag_context.cdu_usage = val;
2313         }
2314         if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
2315                 netdev_err(dev->netdev, "fcoe_offload size too big\n");
2316                 goto err_reply;
2317         }
2318         fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2319         if (!fcoe_offload)
2320                 goto err_reply;
2321
2322         memset(fcoe_offload, 0, sizeof(*fcoe_offload));
2323         memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
2324         memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
2325         memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
2326         memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
2327
2328         cid = BNX2X_HW_CID(cp, cid);
2329         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
2330                                   FCOE_CONNECTION_TYPE, &l5_data);
2331         if (!ret)
2332                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2333
2334         return ret;
2335
2336 err_reply:
2337         if (cid != -1)
2338                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
2339
2340         memset(&kcqe, 0, sizeof(kcqe));
2341         kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
2342         kcqe.fcoe_conn_id = req1->fcoe_conn_id;
2343         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
2344
2345         cqes[0] = (struct kcqe *) &kcqe;
2346         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2347         return ret;
2348 }
2349
2350 static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
2351 {
2352         struct fcoe_kwqe_conn_enable_disable *req;
2353         struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
2354         union l5cm_specific_data l5_data;
2355         int ret;
2356         u32 cid, l5_cid;
2357         struct cnic_local *cp = dev->cnic_priv;
2358
2359         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2360         cid = req->context_id;
2361         l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
2362
2363         if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
2364                 netdev_err(dev->netdev, "fcoe_enable size too big\n");
2365                 return -ENOMEM;
2366         }
2367         fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2368         if (!fcoe_enable)
2369                 return -ENOMEM;
2370
2371         memset(fcoe_enable, 0, sizeof(*fcoe_enable));
2372         memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
2373         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
2374                                   FCOE_CONNECTION_TYPE, &l5_data);
2375         return ret;
2376 }
2377
2378 static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
2379 {
2380         struct fcoe_kwqe_conn_enable_disable *req;
2381         struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
2382         union l5cm_specific_data l5_data;
2383         int ret;
2384         u32 cid, l5_cid;
2385         struct cnic_local *cp = dev->cnic_priv;
2386
2387         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2388         cid = req->context_id;
2389         l5_cid = req->conn_id;
2390         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2391                 return -EINVAL;
2392
2393         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2394
2395         if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
2396                 netdev_err(dev->netdev, "fcoe_disable size too big\n");
2397                 return -ENOMEM;
2398         }
2399         fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2400         if (!fcoe_disable)
2401                 return -ENOMEM;
2402
2403         memset(fcoe_disable, 0, sizeof(*fcoe_disable));
2404         memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
2405         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
2406                                   FCOE_CONNECTION_TYPE, &l5_data);
2407         return ret;
2408 }
2409
2410 static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2411 {
2412         struct fcoe_kwqe_conn_destroy *req;
2413         union l5cm_specific_data l5_data;
2414         int ret;
2415         u32 cid, l5_cid;
2416         struct cnic_local *cp = dev->cnic_priv;
2417         struct cnic_context *ctx;
2418         struct fcoe_kcqe kcqe;
2419         struct kcqe *cqes[1];
2420
2421         req = (struct fcoe_kwqe_conn_destroy *) kwqe;
2422         cid = req->context_id;
2423         l5_cid = req->conn_id;
2424         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2425                 return -EINVAL;
2426
2427         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2428
2429         ctx = &cp->ctx_tbl[l5_cid];
2430
2431         init_waitqueue_head(&ctx->waitq);
2432         ctx->wait_cond = 0;
2433
2434         memset(&l5_data, 0, sizeof(l5_data));
2435         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
2436                                   FCOE_CONNECTION_TYPE, &l5_data);
2437         if (ret == 0) {
2438                 wait_event(ctx->waitq, ctx->wait_cond);
2439                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2440                 queue_delayed_work(cnic_wq, &cp->delete_task,
2441                                    msecs_to_jiffies(2000));
2442         }
2443
2444         memset(&kcqe, 0, sizeof(kcqe));
2445         kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
2446         kcqe.fcoe_conn_id = req->conn_id;
2447         kcqe.fcoe_conn_context_id = cid;
2448
2449         cqes[0] = (struct kcqe *) &kcqe;
2450         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2451         return ret;
2452 }
2453
2454 static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2455 {
2456         struct fcoe_kwqe_destroy *req;
2457         union l5cm_specific_data l5_data;
2458         struct cnic_local *cp = dev->cnic_priv;
2459         int ret;
2460         u32 cid;
2461
2462         req = (struct fcoe_kwqe_destroy *) kwqe;
2463         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2464
2465         memset(&l5_data, 0, sizeof(l5_data));
2466         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY, cid,
2467                                   FCOE_CONNECTION_TYPE, &l5_data);
2468         return ret;
2469 }
2470
2471 static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev,
2472                                          struct kwqe *wqes[], u32 num_wqes)
2473 {
2474         int i, work, ret;
2475         u32 opcode;
2476         struct kwqe *kwqe;
2477
2478         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2479                 return -EAGAIN;         /* bnx2 is down */
2480
2481         for (i = 0; i < num_wqes; ) {
2482                 kwqe = wqes[i];
2483                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2484                 work = 1;
2485
2486                 switch (opcode) {
2487                 case ISCSI_KWQE_OPCODE_INIT1:
2488                         ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
2489                         break;
2490                 case ISCSI_KWQE_OPCODE_INIT2:
2491                         ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
2492                         break;
2493                 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
2494                         ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
2495                                                      num_wqes - i, &work);
2496                         break;
2497                 case ISCSI_KWQE_OPCODE_UPDATE_CONN:
2498                         ret = cnic_bnx2x_iscsi_update(dev, kwqe);
2499                         break;
2500                 case ISCSI_KWQE_OPCODE_DESTROY_CONN:
2501                         ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
2502                         break;
2503                 case L4_KWQE_OPCODE_VALUE_CONNECT1:
2504                         ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
2505                                                  &work);
2506                         break;
2507                 case L4_KWQE_OPCODE_VALUE_CLOSE:
2508                         ret = cnic_bnx2x_close(dev, kwqe);
2509                         break;
2510                 case L4_KWQE_OPCODE_VALUE_RESET:
2511                         ret = cnic_bnx2x_reset(dev, kwqe);
2512                         break;
2513                 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
2514                         ret = cnic_bnx2x_offload_pg(dev, kwqe);
2515                         break;
2516                 case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
2517                         ret = cnic_bnx2x_update_pg(dev, kwqe);
2518                         break;
2519                 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
2520                         ret = 0;
2521                         break;
2522                 default:
2523                         ret = 0;
2524                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2525                                    opcode);
2526                         break;
2527                 }
2528                 if (ret < 0)
2529                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2530                                    opcode);
2531                 i += work;
2532         }
2533         return 0;
2534 }
2535
2536 static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
2537                                         struct kwqe *wqes[], u32 num_wqes)
2538 {
2539         struct cnic_local *cp = dev->cnic_priv;
2540         int i, work, ret;
2541         u32 opcode;
2542         struct kwqe *kwqe;
2543
2544         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2545                 return -EAGAIN;         /* bnx2 is down */
2546
2547         if (BNX2X_CHIP_NUM(cp->chip_id) == BNX2X_CHIP_NUM_57710)
2548                 return -EINVAL;
2549
2550         for (i = 0; i < num_wqes; ) {
2551                 kwqe = wqes[i];
2552                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2553                 work = 1;
2554
2555                 switch (opcode) {
2556                 case FCOE_KWQE_OPCODE_INIT1:
2557                         ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
2558                                                     num_wqes - i, &work);
2559                         break;
2560                 case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
2561                         ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
2562                                                     num_wqes - i, &work);
2563                         break;
2564                 case FCOE_KWQE_OPCODE_ENABLE_CONN:
2565                         ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
2566                         break;
2567                 case FCOE_KWQE_OPCODE_DISABLE_CONN:
2568                         ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
2569                         break;
2570                 case FCOE_KWQE_OPCODE_DESTROY_CONN:
2571                         ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
2572                         break;
2573                 case FCOE_KWQE_OPCODE_DESTROY:
2574                         ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
2575                         break;
2576                 case FCOE_KWQE_OPCODE_STAT:
2577                         ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
2578                         break;
2579                 default:
2580                         ret = 0;
2581                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2582                                    opcode);
2583                         break;
2584                 }
2585                 if (ret < 0)
2586                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2587                                    opcode);
2588                 i += work;
2589         }
2590         return 0;
2591 }
2592
2593 static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
2594                                    u32 num_wqes)
2595 {
2596         int ret = -EINVAL;
2597         u32 layer_code;
2598
2599         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2600                 return -EAGAIN;         /* bnx2x is down */
2601
2602         if (!num_wqes)
2603                 return 0;
2604
2605         layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
2606         switch (layer_code) {
2607         case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
2608         case KWQE_FLAGS_LAYER_MASK_L4:
2609         case KWQE_FLAGS_LAYER_MASK_L2:
2610                 ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
2611                 break;
2612
2613         case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
2614                 ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
2615                 break;
2616         }
2617         return ret;
2618 }
2619
2620 static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
2621 {
2622         if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
2623                 return KCQE_FLAGS_LAYER_MASK_L4;
2624
2625         return opflag & KCQE_FLAGS_LAYER_MASK;
2626 }
2627
2628 static void service_kcqes(struct cnic_dev *dev, int num_cqes)
2629 {
2630         struct cnic_local *cp = dev->cnic_priv;
2631         int i, j, comp = 0;
2632
2633         i = 0;
2634         j = 1;
2635         while (num_cqes) {
2636                 struct cnic_ulp_ops *ulp_ops;
2637                 int ulp_type;
2638                 u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
2639                 u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag);
2640
2641                 if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
2642                         comp++;
2643
2644                 while (j < num_cqes) {
2645                         u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
2646
2647                         if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
2648                                 break;
2649
2650                         if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
2651                                 comp++;
2652                         j++;
2653                 }
2654
2655                 if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
2656                         ulp_type = CNIC_ULP_RDMA;
2657                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
2658                         ulp_type = CNIC_ULP_ISCSI;
2659                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE)
2660                         ulp_type = CNIC_ULP_FCOE;
2661                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
2662                         ulp_type = CNIC_ULP_L4;
2663                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
2664                         goto end;
2665                 else {
2666                         netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
2667                                    kcqe_op_flag);
2668                         goto end;
2669                 }
2670
2671                 rcu_read_lock();
2672                 ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
2673                 if (likely(ulp_ops)) {
2674                         ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
2675                                                   cp->completed_kcq + i, j);
2676                 }
2677                 rcu_read_unlock();
2678 end:
2679                 num_cqes -= j;
2680                 i += j;
2681                 j = 1;
2682         }
2683         if (unlikely(comp))
2684                 cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
2685 }
2686
2687 static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
2688 {
2689         struct cnic_local *cp = dev->cnic_priv;
2690         u16 i, ri, hw_prod, last;
2691         struct kcqe *kcqe;
2692         int kcqe_cnt = 0, last_cnt = 0;
2693
2694         i = ri = last = info->sw_prod_idx;
2695         ri &= MAX_KCQ_IDX;
2696         hw_prod = *info->hw_prod_idx_ptr;
2697         hw_prod = info->hw_idx(hw_prod);
2698
2699         while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
2700                 kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
2701                 cp->completed_kcq[kcqe_cnt++] = kcqe;
2702                 i = info->next_idx(i);
2703                 ri = i & MAX_KCQ_IDX;
2704                 if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
2705                         last_cnt = kcqe_cnt;
2706                         last = i;
2707                 }
2708         }
2709
2710         info->sw_prod_idx = last;
2711         return last_cnt;
2712 }
2713
2714 static int cnic_l2_completion(struct cnic_local *cp)
2715 {
2716         u16 hw_cons, sw_cons;
2717         struct cnic_uio_dev *udev = cp->udev;
2718         union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
2719                                         (udev->l2_ring + (2 * BCM_PAGE_SIZE));
2720         u32 cmd;
2721         int comp = 0;
2722
2723         if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
2724                 return 0;
2725
2726         hw_cons = *cp->rx_cons_ptr;
2727         if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
2728                 hw_cons++;
2729
2730         sw_cons = cp->rx_cons;
2731         while (sw_cons != hw_cons) {
2732                 u8 cqe_fp_flags;
2733
2734                 cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
2735                 cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
2736                 if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
2737                         cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
2738                         cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
2739                         if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
2740                             cmd == RAMROD_CMD_ID_ETH_HALT)
2741                                 comp++;
2742                 }
2743                 sw_cons = BNX2X_NEXT_RCQE(sw_cons);
2744         }
2745         return comp;
2746 }
2747
2748 static void cnic_chk_pkt_rings(struct cnic_local *cp)
2749 {
2750         u16 rx_cons, tx_cons;
2751         int comp = 0;
2752
2753         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
2754                 return;
2755
2756         rx_cons = *cp->rx_cons_ptr;
2757         tx_cons = *cp->tx_cons_ptr;
2758         if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
2759                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
2760                         comp = cnic_l2_completion(cp);
2761
2762                 cp->tx_cons = tx_cons;
2763                 cp->rx_cons = rx_cons;
2764
2765                 if (cp->udev)
2766                         uio_event_notify(&cp->udev->cnic_uinfo);
2767         }
2768         if (comp)
2769                 clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
2770 }
2771
2772 static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
2773 {
2774         struct cnic_local *cp = dev->cnic_priv;
2775         u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2776         int kcqe_cnt;
2777
2778         /* status block index must be read before reading other fields */
2779         rmb();
2780         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2781
2782         while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
2783
2784                 service_kcqes(dev, kcqe_cnt);
2785
2786                 /* Tell compiler that status_blk fields can change. */
2787                 barrier();
2788                 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2789                 /* status block index must be read first */
2790                 rmb();
2791                 cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2792         }
2793
2794         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
2795
2796         cnic_chk_pkt_rings(cp);
2797
2798         return status_idx;
2799 }
2800
2801 static int cnic_service_bnx2(void *data, void *status_blk)
2802 {
2803         struct cnic_dev *dev = data;
2804
2805         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2806                 struct status_block *sblk = status_blk;
2807
2808                 return sblk->status_idx;
2809         }
2810
2811         return cnic_service_bnx2_queues(dev);
2812 }
2813
2814 static void cnic_service_bnx2_msix(unsigned long data)
2815 {
2816         struct cnic_dev *dev = (struct cnic_dev *) data;
2817         struct cnic_local *cp = dev->cnic_priv;
2818
2819         cp->last_status_idx = cnic_service_bnx2_queues(dev);
2820
2821         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
2822                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
2823 }
2824
2825 static void cnic_doirq(struct cnic_dev *dev)
2826 {
2827         struct cnic_local *cp = dev->cnic_priv;
2828
2829         if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2830                 u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
2831
2832                 prefetch(cp->status_blk.gen);
2833                 prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
2834
2835                 tasklet_schedule(&cp->cnic_irq_task);
2836         }
2837 }
2838
2839 static irqreturn_t cnic_irq(int irq, void *dev_instance)
2840 {
2841         struct cnic_dev *dev = dev_instance;
2842         struct cnic_local *cp = dev->cnic_priv;
2843
2844         if (cp->ack_int)
2845                 cp->ack_int(dev);
2846
2847         cnic_doirq(dev);
2848
2849         return IRQ_HANDLED;
2850 }
2851
2852 static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
2853                                       u16 index, u8 op, u8 update)
2854 {
2855         struct cnic_local *cp = dev->cnic_priv;
2856         u32 hc_addr = (HC_REG_COMMAND_REG + CNIC_PORT(cp) * 32 +
2857                        COMMAND_REG_INT_ACK);
2858         struct igu_ack_register igu_ack;
2859
2860         igu_ack.status_block_index = index;
2861         igu_ack.sb_id_and_flags =
2862                         ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
2863                          (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
2864                          (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
2865                          (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
2866
2867         CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
2868 }
2869
2870 static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
2871                             u16 index, u8 op, u8 update)
2872 {
2873         struct igu_regular cmd_data;
2874         u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
2875
2876         cmd_data.sb_id_and_flags =
2877                 (index << IGU_REGULAR_SB_INDEX_SHIFT) |
2878                 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
2879                 (update << IGU_REGULAR_BUPDATE_SHIFT) |
2880                 (op << IGU_REGULAR_ENABLE_INT_SHIFT);
2881
2882
2883         CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
2884 }
2885
2886 static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
2887 {
2888         struct cnic_local *cp = dev->cnic_priv;
2889
2890         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
2891                            IGU_INT_DISABLE, 0);
2892 }
2893
2894 static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
2895 {
2896         struct cnic_local *cp = dev->cnic_priv;
2897
2898         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0,
2899                         IGU_INT_DISABLE, 0);
2900 }
2901
2902 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
2903 {
2904         u32 last_status = *info->status_idx_ptr;
2905         int kcqe_cnt;
2906
2907         /* status block index must be read before reading the KCQ */
2908         rmb();
2909         while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
2910
2911                 service_kcqes(dev, kcqe_cnt);
2912
2913                 /* Tell compiler that sblk fields can change. */
2914                 barrier();
2915
2916                 last_status = *info->status_idx_ptr;
2917                 /* status block index must be read before reading the KCQ */
2918                 rmb();
2919         }
2920         return last_status;
2921 }
2922
2923 static void cnic_service_bnx2x_bh(unsigned long data)
2924 {
2925         struct cnic_dev *dev = (struct cnic_dev *) data;
2926         struct cnic_local *cp = dev->cnic_priv;
2927         u32 status_idx, new_status_idx;
2928
2929         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
2930                 return;
2931
2932         while (1) {
2933                 status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
2934
2935                 CNIC_WR16(dev, cp->kcq1.io_addr,
2936                           cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
2937
2938                 if (!BNX2X_CHIP_IS_E2(cp->chip_id)) {
2939                         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,
2940                                            status_idx, IGU_INT_ENABLE, 1);
2941                         break;
2942                 }
2943
2944                 new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
2945
2946                 if (new_status_idx != status_idx)
2947                         continue;
2948
2949                 CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
2950                           MAX_KCQ_IDX);
2951
2952                 cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
2953                                 status_idx, IGU_INT_ENABLE, 1);
2954
2955                 break;
2956         }
2957 }
2958
2959 static int cnic_service_bnx2x(void *data, void *status_blk)
2960 {
2961         struct cnic_dev *dev = data;
2962         struct cnic_local *cp = dev->cnic_priv;
2963
2964         if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
2965                 cnic_doirq(dev);
2966
2967         cnic_chk_pkt_rings(cp);
2968
2969         return 0;
2970 }
2971
2972 static void cnic_ulp_stop_one(struct cnic_local *cp, int if_type)
2973 {
2974         struct cnic_ulp_ops *ulp_ops;
2975
2976         if (if_type == CNIC_ULP_ISCSI)
2977                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
2978
2979         mutex_lock(&cnic_lock);
2980         ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
2981                                             lockdep_is_held(&cnic_lock));
2982         if (!ulp_ops) {
2983                 mutex_unlock(&cnic_lock);
2984                 return;
2985         }
2986         set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2987         mutex_unlock(&cnic_lock);
2988
2989         if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
2990                 ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
2991
2992         clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2993 }
2994
2995 static void cnic_ulp_stop(struct cnic_dev *dev)
2996 {
2997         struct cnic_local *cp = dev->cnic_priv;
2998         int if_type;
2999
3000         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++)
3001                 cnic_ulp_stop_one(cp, if_type);
3002 }
3003
3004 static void cnic_ulp_start(struct cnic_dev *dev)
3005 {
3006         struct cnic_local *cp = dev->cnic_priv;
3007         int if_type;
3008
3009         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
3010                 struct cnic_ulp_ops *ulp_ops;
3011
3012                 mutex_lock(&cnic_lock);
3013                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3014                                                     lockdep_is_held(&cnic_lock));
3015                 if (!ulp_ops || !ulp_ops->cnic_start) {
3016                         mutex_unlock(&cnic_lock);
3017                         continue;
3018                 }
3019                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3020                 mutex_unlock(&cnic_lock);
3021
3022                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3023                         ulp_ops->cnic_start(cp->ulp_handle[if_type]);
3024
3025                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3026         }
3027 }
3028
3029 static int cnic_ctl(void *data, struct cnic_ctl_info *info)
3030 {
3031         struct cnic_dev *dev = data;
3032
3033         switch (info->cmd) {
3034         case CNIC_CTL_STOP_CMD:
3035                 cnic_hold(dev);
3036
3037                 cnic_ulp_stop(dev);
3038                 cnic_stop_hw(dev);
3039
3040                 cnic_put(dev);
3041                 break;
3042         case CNIC_CTL_START_CMD:
3043                 cnic_hold(dev);
3044
3045                 if (!cnic_start_hw(dev))
3046                         cnic_ulp_start(dev);
3047
3048                 cnic_put(dev);
3049                 break;
3050         case CNIC_CTL_STOP_ISCSI_CMD: {
3051                 struct cnic_local *cp = dev->cnic_priv;
3052                 set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags);
3053                 queue_delayed_work(cnic_wq, &cp->delete_task, 0);
3054                 break;
3055         }
3056         case CNIC_CTL_COMPLETION_CMD: {
3057                 u32 cid = BNX2X_SW_CID(info->data.comp.cid);
3058                 u32 l5_cid;
3059                 struct cnic_local *cp = dev->cnic_priv;
3060
3061                 if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
3062                         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3063
3064                         ctx->wait_cond = 1;
3065                         wake_up(&ctx->waitq);
3066                 }
3067                 break;
3068         }
3069         default:
3070                 return -EINVAL;
3071         }
3072         return 0;
3073 }
3074
3075 static void cnic_ulp_init(struct cnic_dev *dev)
3076 {
3077         int i;
3078         struct cnic_local *cp = dev->cnic_priv;
3079
3080         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3081                 struct cnic_ulp_ops *ulp_ops;
3082
3083                 mutex_lock(&cnic_lock);
3084                 ulp_ops = cnic_ulp_tbl_prot(i);
3085                 if (!ulp_ops || !ulp_ops->cnic_init) {
3086                         mutex_unlock(&cnic_lock);
3087                         continue;
3088                 }
3089                 ulp_get(ulp_ops);
3090                 mutex_unlock(&cnic_lock);
3091
3092                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3093                         ulp_ops->cnic_init(dev);
3094
3095                 ulp_put(ulp_ops);
3096         }
3097 }
3098
3099 static void cnic_ulp_exit(struct cnic_dev *dev)
3100 {
3101         int i;
3102         struct cnic_local *cp = dev->cnic_priv;
3103
3104         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3105                 struct cnic_ulp_ops *ulp_ops;
3106
3107                 mutex_lock(&cnic_lock);
3108                 ulp_ops = cnic_ulp_tbl_prot(i);
3109                 if (!ulp_ops || !ulp_ops->cnic_exit) {
3110                         mutex_unlock(&cnic_lock);
3111                         continue;
3112                 }
3113                 ulp_get(ulp_ops);
3114                 mutex_unlock(&cnic_lock);
3115
3116                 if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3117                         ulp_ops->cnic_exit(dev);
3118
3119                 ulp_put(ulp_ops);
3120         }
3121 }
3122
3123 static int cnic_cm_offload_pg(struct cnic_sock *csk)
3124 {
3125         struct cnic_dev *dev = csk->dev;
3126         struct l4_kwq_offload_pg *l4kwqe;
3127         struct kwqe *wqes[1];
3128
3129         l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
3130         memset(l4kwqe, 0, sizeof(*l4kwqe));
3131         wqes[0] = (struct kwqe *) l4kwqe;
3132
3133         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
3134         l4kwqe->flags =
3135                 L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
3136         l4kwqe->l2hdr_nbytes = ETH_HLEN;
3137
3138         l4kwqe->da0 = csk->ha[0];
3139         l4kwqe->da1 = csk->ha[1];
3140         l4kwqe->da2 = csk->ha[2];
3141         l4kwqe->da3 = csk->ha[3];
3142         l4kwqe->da4 = csk->ha[4];
3143         l4kwqe->da5 = csk->ha[5];
3144
3145         l4kwqe->sa0 = dev->mac_addr[0];
3146         l4kwqe->sa1 = dev->mac_addr[1];
3147         l4kwqe->sa2 = dev->mac_addr[2];
3148         l4kwqe->sa3 = dev->mac_addr[3];
3149         l4kwqe->sa4 = dev->mac_addr[4];
3150         l4kwqe->sa5 = dev->mac_addr[5];
3151
3152         l4kwqe->etype = ETH_P_IP;
3153         l4kwqe->ipid_start = DEF_IPID_START;
3154         l4kwqe->host_opaque = csk->l5_cid;
3155
3156         if (csk->vlan_id) {
3157                 l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
3158                 l4kwqe->vlan_tag = csk->vlan_id;
3159                 l4kwqe->l2hdr_nbytes += 4;
3160         }
3161
3162         return dev->submit_kwqes(dev, wqes, 1);
3163 }
3164
3165 static int cnic_cm_update_pg(struct cnic_sock *csk)
3166 {
3167         struct cnic_dev *dev = csk->dev;
3168         struct l4_kwq_update_pg *l4kwqe;
3169         struct kwqe *wqes[1];
3170
3171         l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
3172         memset(l4kwqe, 0, sizeof(*l4kwqe));
3173         wqes[0] = (struct kwqe *) l4kwqe;
3174
3175         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
3176         l4kwqe->flags =
3177                 L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
3178         l4kwqe->pg_cid = csk->pg_cid;
3179
3180         l4kwqe->da0 = csk->ha[0];
3181         l4kwqe->da1 = csk->ha[1];
3182         l4kwqe->da2 = csk->ha[2];
3183         l4kwqe->da3 = csk->ha[3];
3184         l4kwqe->da4 = csk->ha[4];
3185         l4kwqe->da5 = csk->ha[5];
3186
3187         l4kwqe->pg_host_opaque = csk->l5_cid;
3188         l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
3189
3190         return dev->submit_kwqes(dev, wqes, 1);
3191 }
3192
3193 static int cnic_cm_upload_pg(struct cnic_sock *csk)
3194 {
3195         struct cnic_dev *dev = csk->dev;
3196         struct l4_kwq_upload *l4kwqe;
3197         struct kwqe *wqes[1];
3198
3199         l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
3200         memset(l4kwqe, 0, sizeof(*l4kwqe));
3201         wqes[0] = (struct kwqe *) l4kwqe;
3202
3203         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
3204         l4kwqe->flags =
3205                 L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
3206         l4kwqe->cid = csk->pg_cid;
3207
3208         return dev->submit_kwqes(dev, wqes, 1);
3209 }
3210
3211 static int cnic_cm_conn_req(struct cnic_sock *csk)
3212 {
3213         struct cnic_dev *dev = csk->dev;
3214         struct l4_kwq_connect_req1 *l4kwqe1;
3215         struct l4_kwq_connect_req2 *l4kwqe2;
3216         struct l4_kwq_connect_req3 *l4kwqe3;
3217         struct kwqe *wqes[3];
3218         u8 tcp_flags = 0;
3219         int num_wqes = 2;
3220
3221         l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
3222         l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
3223         l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
3224         memset(l4kwqe1, 0, sizeof(*l4kwqe1));
3225         memset(l4kwqe2, 0, sizeof(*l4kwqe2));
3226         memset(l4kwqe3, 0, sizeof(*l4kwqe3));
3227
3228         l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
3229         l4kwqe3->flags =
3230                 L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
3231         l4kwqe3->ka_timeout = csk->ka_timeout;
3232         l4kwqe3->ka_interval = csk->ka_interval;
3233         l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
3234         l4kwqe3->tos = csk->tos;
3235         l4kwqe3->ttl = csk->ttl;
3236         l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
3237         l4kwqe3->pmtu = csk->mtu;
3238         l4kwqe3->rcv_buf = csk->rcv_buf;
3239         l4kwqe3->snd_buf = csk->snd_buf;
3240         l4kwqe3->seed = csk->seed;
3241
3242         wqes[0] = (struct kwqe *) l4kwqe1;
3243         if (test_bit(SK_F_IPV6, &csk->flags)) {
3244                 wqes[1] = (struct kwqe *) l4kwqe2;
3245                 wqes[2] = (struct kwqe *) l4kwqe3;
3246                 num_wqes = 3;
3247
3248                 l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
3249                 l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
3250                 l4kwqe2->flags =
3251                         L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
3252                         L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
3253                 l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
3254                 l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
3255                 l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
3256                 l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
3257                 l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
3258                 l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
3259                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
3260                                sizeof(struct tcphdr);
3261         } else {
3262                 wqes[1] = (struct kwqe *) l4kwqe3;
3263                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
3264                                sizeof(struct tcphdr);
3265         }
3266
3267         l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
3268         l4kwqe1->flags =
3269                 (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
3270                  L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
3271         l4kwqe1->cid = csk->cid;
3272         l4kwqe1->pg_cid = csk->pg_cid;
3273         l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
3274         l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
3275         l4kwqe1->src_port = be16_to_cpu(csk->src_port);
3276         l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
3277         if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
3278                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
3279         if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
3280                 tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
3281         if (csk->tcp_flags & SK_TCP_NAGLE)
3282                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
3283         if (csk->tcp_flags & SK_TCP_TIMESTAMP)
3284                 tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
3285         if (csk->tcp_flags & SK_TCP_SACK)
3286                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
3287         if (csk->tcp_flags & SK_TCP_SEG_SCALING)
3288                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
3289
3290         l4kwqe1->tcp_flags = tcp_flags;
3291
3292         return dev->submit_kwqes(dev, wqes, num_wqes);
3293 }
3294
3295 static int cnic_cm_close_req(struct cnic_sock *csk)
3296 {
3297         struct cnic_dev *dev = csk->dev;
3298         struct l4_kwq_close_req *l4kwqe;
3299         struct kwqe *wqes[1];
3300
3301         l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
3302         memset(l4kwqe, 0, sizeof(*l4kwqe));
3303         wqes[0] = (struct kwqe *) l4kwqe;
3304
3305         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
3306         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
3307         l4kwqe->cid = csk->cid;
3308
3309         return dev->submit_kwqes(dev, wqes, 1);
3310 }
3311
3312 static int cnic_cm_abort_req(struct cnic_sock *csk)
3313 {
3314         struct cnic_dev *dev = csk->dev;
3315         struct l4_kwq_reset_req *l4kwqe;
3316         struct kwqe *wqes[1];
3317
3318         l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
3319         memset(l4kwqe, 0, sizeof(*l4kwqe));
3320         wqes[0] = (struct kwqe *) l4kwqe;
3321
3322         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
3323         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
3324         l4kwqe->cid = csk->cid;
3325
3326         return dev->submit_kwqes(dev, wqes, 1);
3327 }
3328
3329 static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
3330                           u32 l5_cid, struct cnic_sock **csk, void *context)
3331 {
3332         struct cnic_local *cp = dev->cnic_priv;
3333         struct cnic_sock *csk1;
3334
3335         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3336                 return -EINVAL;
3337
3338         if (cp->ctx_tbl) {
3339                 struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3340
3341                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3342                         return -EAGAIN;
3343         }
3344
3345         csk1 = &cp->csk_tbl[l5_cid];
3346         if (atomic_read(&csk1->ref_count))
3347                 return -EAGAIN;
3348
3349         if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
3350                 return -EBUSY;
3351
3352         csk1->dev = dev;
3353         csk1->cid = cid;
3354         csk1->l5_cid = l5_cid;
3355         csk1->ulp_type = ulp_type;
3356         csk1->context = context;
3357
3358         csk1->ka_timeout = DEF_KA_TIMEOUT;
3359         csk1->ka_interval = DEF_KA_INTERVAL;
3360         csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
3361         csk1->tos = DEF_TOS;
3362         csk1->ttl = DEF_TTL;
3363         csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
3364         csk1->rcv_buf = DEF_RCV_BUF;
3365         csk1->snd_buf = DEF_SND_BUF;
3366         csk1->seed = DEF_SEED;
3367
3368         *csk = csk1;
3369         return 0;
3370 }
3371
3372 static void cnic_cm_cleanup(struct cnic_sock *csk)
3373 {
3374         if (csk->src_port) {
3375                 struct cnic_dev *dev = csk->dev;
3376                 struct cnic_local *cp = dev->cnic_priv;
3377
3378                 cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
3379                 csk->src_port = 0;
3380         }
3381 }
3382
3383 static void cnic_close_conn(struct cnic_sock *csk)
3384 {
3385         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
3386                 cnic_cm_upload_pg(csk);
3387                 clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3388         }
3389         cnic_cm_cleanup(csk);
3390 }
3391
3392 static int cnic_cm_destroy(struct cnic_sock *csk)
3393 {
3394         if (!cnic_in_use(csk))
3395                 return -EINVAL;
3396
3397         csk_hold(csk);
3398         clear_bit(SK_F_INUSE, &csk->flags);
3399         smp_mb__after_clear_bit();
3400         while (atomic_read(&csk->ref_count) != 1)
3401                 msleep(1);
3402         cnic_cm_cleanup(csk);
3403
3404         csk->flags = 0;
3405         csk_put(csk);
3406         return 0;
3407 }
3408
3409 static inline u16 cnic_get_vlan(struct net_device *dev,
3410                                 struct net_device **vlan_dev)
3411 {
3412         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3413                 *vlan_dev = vlan_dev_real_dev(dev);
3414                 return vlan_dev_vlan_id(dev);
3415         }
3416         *vlan_dev = dev;
3417         return 0;
3418 }
3419
3420 static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
3421                              struct dst_entry **dst)
3422 {
3423 #if defined(CONFIG_INET)
3424         struct rtable *rt;
3425
3426         rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
3427         if (!IS_ERR(rt)) {
3428                 *dst = &rt->dst;
3429                 return 0;
3430         }
3431         return PTR_ERR(rt);
3432 #else
3433         return -ENETUNREACH;
3434 #endif
3435 }
3436
3437 static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
3438                              struct dst_entry **dst)
3439 {
3440 #if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
3441         struct flowi6 fl6;
3442
3443         memset(&fl6, 0, sizeof(fl6));
3444         ipv6_addr_copy(&fl6.daddr, &dst_addr->sin6_addr);
3445         if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
3446                 fl6.flowi6_oif = dst_addr->sin6_scope_id;
3447
3448         *dst = ip6_route_output(&init_net, NULL, &fl6);
3449         if (*dst)
3450                 return 0;
3451 #endif
3452
3453         return -ENETUNREACH;
3454 }
3455
3456 static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
3457                                            int ulp_type)
3458 {
3459         struct cnic_dev *dev = NULL;
3460         struct dst_entry *dst;
3461         struct net_device *netdev = NULL;
3462         int err = -ENETUNREACH;
3463
3464         if (dst_addr->sin_family == AF_INET)
3465                 err = cnic_get_v4_route(dst_addr, &dst);
3466         else if (dst_addr->sin_family == AF_INET6) {
3467                 struct sockaddr_in6 *dst_addr6 =
3468                         (struct sockaddr_in6 *) dst_addr;
3469
3470                 err = cnic_get_v6_route(dst_addr6, &dst);
3471         } else
3472                 return NULL;
3473
3474         if (err)
3475                 return NULL;
3476
3477         if (!dst->dev)
3478                 goto done;
3479
3480         cnic_get_vlan(dst->dev, &netdev);
3481
3482         dev = cnic_from_netdev(netdev);
3483
3484 done:
3485         dst_release(dst);
3486         if (dev)
3487                 cnic_put(dev);
3488         return dev;
3489 }
3490
3491 static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3492 {
3493         struct cnic_dev *dev = csk->dev;
3494         struct cnic_local *cp = dev->cnic_priv;
3495
3496         return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
3497 }
3498
3499 static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3500 {
3501         struct cnic_dev *dev = csk->dev;
3502         struct cnic_local *cp = dev->cnic_priv;
3503         int is_v6, rc = 0;
3504         struct dst_entry *dst = NULL;
3505         struct net_device *realdev;
3506         __be16 local_port;
3507         u32 port_id;
3508
3509         if (saddr->local.v6.sin6_family == AF_INET6 &&
3510             saddr->remote.v6.sin6_family == AF_INET6)
3511                 is_v6 = 1;
3512         else if (saddr->local.v4.sin_family == AF_INET &&
3513                  saddr->remote.v4.sin_family == AF_INET)
3514                 is_v6 = 0;
3515         else
3516                 return -EINVAL;
3517
3518         clear_bit(SK_F_IPV6, &csk->flags);
3519
3520         if (is_v6) {
3521                 set_bit(SK_F_IPV6, &csk->flags);
3522                 cnic_get_v6_route(&saddr->remote.v6, &dst);
3523
3524                 memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
3525                        sizeof(struct in6_addr));
3526                 csk->dst_port = saddr->remote.v6.sin6_port;
3527                 local_port = saddr->local.v6.sin6_port;
3528
3529         } else {
3530                 cnic_get_v4_route(&saddr->remote.v4, &dst);
3531
3532                 csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
3533                 csk->dst_port = saddr->remote.v4.sin_port;
3534                 local_port = saddr->local.v4.sin_port;
3535         }
3536
3537         csk->vlan_id = 0;
3538         csk->mtu = dev->netdev->mtu;
3539         if (dst && dst->dev) {
3540                 u16 vlan = cnic_get_vlan(dst->dev, &realdev);
3541                 if (realdev == dev->netdev) {
3542                         csk->vlan_id = vlan;
3543                         csk->mtu = dst_mtu(dst);
3544                 }
3545         }
3546
3547         port_id = be16_to_cpu(local_port);
3548         if (port_id >= CNIC_LOCAL_PORT_MIN &&
3549             port_id < CNIC_LOCAL_PORT_MAX) {
3550                 if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
3551                         port_id = 0;
3552         } else
3553                 port_id = 0;
3554
3555         if (!port_id) {
3556                 port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
3557                 if (port_id == -1) {
3558                         rc = -ENOMEM;
3559                         goto err_out;
3560                 }
3561                 local_port = cpu_to_be16(port_id);
3562         }
3563         csk->src_port = local_port;
3564
3565 err_out:
3566         dst_release(dst);
3567         return rc;
3568 }
3569
3570 static void cnic_init_csk_state(struct cnic_sock *csk)
3571 {
3572         csk->state = 0;
3573         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3574         clear_bit(SK_F_CLOSING, &csk->flags);
3575 }
3576
3577 static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3578 {
3579         struct cnic_local *cp = csk->dev->cnic_priv;
3580         int err = 0;
3581
3582         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
3583                 return -EOPNOTSUPP;
3584
3585         if (!cnic_in_use(csk))
3586                 return -EINVAL;
3587
3588         if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
3589                 return -EINVAL;
3590
3591         cnic_init_csk_state(csk);
3592
3593         err = cnic_get_route(csk, saddr);
3594         if (err)
3595                 goto err_out;
3596
3597         err = cnic_resolve_addr(csk, saddr);
3598         if (!err)
3599                 return 0;
3600
3601 err_out:
3602         clear_bit(SK_F_CONNECT_START, &csk->flags);
3603         return err;
3604 }
3605
3606 static int cnic_cm_abort(struct cnic_sock *csk)
3607 {
3608         struct cnic_local *cp = csk->dev->cnic_priv;
3609         u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
3610
3611         if (!cnic_in_use(csk))
3612                 return -EINVAL;
3613
3614         if (cnic_abort_prep(csk))
3615                 return cnic_cm_abort_req(csk);
3616
3617         /* Getting here means that we haven't started connect, or
3618          * connect was not successful.
3619          */
3620
3621         cp->close_conn(csk, opcode);
3622         if (csk->state != opcode)
3623                 return -EALREADY;
3624
3625         return 0;
3626 }
3627
3628 static int cnic_cm_close(struct cnic_sock *csk)
3629 {
3630         if (!cnic_in_use(csk))
3631                 return -EINVAL;
3632
3633         if (cnic_close_prep(csk)) {
3634                 csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
3635                 return cnic_cm_close_req(csk);
3636         } else {
3637                 return -EALREADY;
3638         }
3639         return 0;
3640 }
3641
3642 static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
3643                            u8 opcode)
3644 {
3645         struct cnic_ulp_ops *ulp_ops;
3646         int ulp_type = csk->ulp_type;
3647
3648         rcu_read_lock();
3649         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
3650         if (ulp_ops) {
3651                 if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
3652                         ulp_ops->cm_connect_complete(csk);
3653                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3654                         ulp_ops->cm_close_complete(csk);
3655                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
3656                         ulp_ops->cm_remote_abort(csk);
3657                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
3658                         ulp_ops->cm_abort_complete(csk);
3659                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
3660                         ulp_ops->cm_remote_close(csk);
3661         }
3662         rcu_read_unlock();
3663 }
3664
3665 static int cnic_cm_set_pg(struct cnic_sock *csk)
3666 {
3667         if (cnic_offld_prep(csk)) {
3668                 if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3669                         cnic_cm_update_pg(csk);
3670                 else
3671                         cnic_cm_offload_pg(csk);
3672         }
3673         return 0;
3674 }
3675
3676 static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
3677 {
3678         struct cnic_local *cp = dev->cnic_priv;
3679         u32 l5_cid = kcqe->pg_host_opaque;
3680         u8 opcode = kcqe->op_code;
3681         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
3682
3683         csk_hold(csk);
3684         if (!cnic_in_use(csk))
3685                 goto done;
3686
3687         if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3688                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3689                 goto done;
3690         }
3691         /* Possible PG kcqe status:  SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
3692         if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
3693                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3694                 cnic_cm_upcall(cp, csk,
3695                                L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3696                 goto done;
3697         }
3698
3699         csk->pg_cid = kcqe->pg_cid;
3700         set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3701         cnic_cm_conn_req(csk);
3702
3703 done:
3704         csk_put(csk);
3705 }
3706
3707 static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
3708 {
3709         struct cnic_local *cp = dev->cnic_priv;
3710         struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
3711         u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
3712         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3713
3714         ctx->timestamp = jiffies;
3715         ctx->wait_cond = 1;
3716         wake_up(&ctx->waitq);
3717 }
3718
3719 static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
3720 {
3721         struct cnic_local *cp = dev->cnic_priv;
3722         struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
3723         u8 opcode = l4kcqe->op_code;
3724         u32 l5_cid;
3725         struct cnic_sock *csk;
3726
3727         if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
3728                 cnic_process_fcoe_term_conn(dev, kcqe);
3729                 return;
3730         }
3731         if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
3732             opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3733                 cnic_cm_process_offld_pg(dev, l4kcqe);
3734                 return;
3735         }
3736
3737         l5_cid = l4kcqe->conn_id;
3738         if (opcode & 0x80)
3739                 l5_cid = l4kcqe->cid;
3740         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3741                 return;
3742
3743         csk = &cp->csk_tbl[l5_cid];
3744         csk_hold(csk);
3745
3746         if (!cnic_in_use(csk)) {
3747                 csk_put(csk);
3748                 return;
3749         }
3750
3751         switch (opcode) {
3752         case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
3753                 if (l4kcqe->status != 0) {
3754                         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3755                         cnic_cm_upcall(cp, csk,
3756                                        L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3757                 }
3758                 break;
3759         case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
3760                 if (l4kcqe->status == 0)
3761                         set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
3762
3763                 smp_mb__before_clear_bit();
3764                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3765                 cnic_cm_upcall(cp, csk, opcode);
3766                 break;
3767
3768         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3769         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3770         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3771         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3772         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3773                 cp->close_conn(csk, opcode);
3774                 break;
3775
3776         case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
3777                 /* after we already sent CLOSE_REQ */
3778                 if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) &&
3779                     !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags) &&
3780                     csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3781                         cp->close_conn(csk, L4_KCQE_OPCODE_VALUE_RESET_COMP);
3782                 else
3783                         cnic_cm_upcall(cp, csk, opcode);
3784                 break;
3785         }
3786         csk_put(csk);
3787 }
3788
3789 static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
3790 {
3791         struct cnic_dev *dev = data;
3792         int i;
3793
3794         for (i = 0; i < num; i++)
3795                 cnic_cm_process_kcqe(dev, kcqe[i]);
3796 }
3797
3798 static struct cnic_ulp_ops cm_ulp_ops = {
3799         .indicate_kcqes         = cnic_cm_indicate_kcqe,
3800 };
3801
3802 static void cnic_cm_free_mem(struct cnic_dev *dev)
3803 {
3804         struct cnic_local *cp = dev->cnic_priv;
3805
3806         kfree(cp->csk_tbl);
3807         cp->csk_tbl = NULL;
3808         cnic_free_id_tbl(&cp->csk_port_tbl);
3809 }
3810
3811 static int cnic_cm_alloc_mem(struct cnic_dev *dev)
3812 {
3813         struct cnic_local *cp = dev->cnic_priv;
3814         u32 port_id;
3815
3816         cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ,
3817                               GFP_KERNEL);
3818         if (!cp->csk_tbl)
3819                 return -ENOMEM;
3820
3821         get_random_bytes(&port_id, sizeof(port_id));
3822         port_id %= CNIC_LOCAL_PORT_RANGE;
3823         if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
3824                              CNIC_LOCAL_PORT_MIN, port_id)) {
3825                 cnic_cm_free_mem(dev);
3826                 return -ENOMEM;
3827         }
3828         return 0;
3829 }
3830
3831 static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
3832 {
3833         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
3834                 /* Unsolicited RESET_COMP or RESET_RECEIVED */
3835                 opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
3836                 csk->state = opcode;
3837         }
3838
3839         /* 1. If event opcode matches the expected event in csk->state
3840          * 2. If the expected event is CLOSE_COMP or RESET_COMP, we accept any
3841          *    event
3842          * 3. If the expected event is 0, meaning the connection was never
3843          *    never established, we accept the opcode from cm_abort.
3844          */
3845         if (opcode == csk->state || csk->state == 0 ||
3846             csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP ||
3847             csk->state == L4_KCQE_OPCODE_VALUE_RESET_COMP) {
3848                 if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
3849                         if (csk->state == 0)
3850                                 csk->state = opcode;
3851                         return 1;
3852                 }
3853         }
3854         return 0;
3855 }
3856
3857 static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
3858 {
3859         struct cnic_dev *dev = csk->dev;
3860         struct cnic_local *cp = dev->cnic_priv;
3861
3862         if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
3863                 cnic_cm_upcall(cp, csk, opcode);
3864                 return;
3865         }
3866
3867         clear_bit(SK_F_CONNECT_START, &csk->flags);
3868         cnic_close_conn(csk);
3869         csk->state = opcode;
3870         cnic_cm_upcall(cp, csk, opcode);
3871 }
3872
3873 static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
3874 {
3875 }
3876
3877 static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
3878 {
3879         u32 seed;
3880
3881         get_random_bytes(&seed, 4);
3882         cnic_ctx_wr(dev, 45, 0, seed);
3883         return 0;
3884 }
3885
3886 static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
3887 {
3888         struct cnic_dev *dev = csk->dev;
3889         struct cnic_local *cp = dev->cnic_priv;
3890         struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
3891         union l5cm_specific_data l5_data;
3892         u32 cmd = 0;
3893         int close_complete = 0;
3894
3895         switch (opcode) {
3896         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3897         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3898         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3899                 if (cnic_ready_to_close(csk, opcode)) {
3900                         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3901                                 cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
3902                         else
3903                                 close_complete = 1;
3904                 }
3905                 break;
3906         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3907                 cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
3908                 break;
3909         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3910                 close_complete = 1;
3911                 break;
3912         }
3913         if (cmd) {
3914                 memset(&l5_data, 0, sizeof(l5_data));
3915
3916                 cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
3917                                     &l5_data);
3918         } else if (close_complete) {
3919                 ctx->timestamp = jiffies;
3920                 cnic_close_conn(csk);
3921                 cnic_cm_upcall(cp, csk, csk->state);
3922         }
3923 }
3924
3925 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
3926 {
3927         struct cnic_local *cp = dev->cnic_priv;
3928         int i;
3929
3930         if (!cp->ctx_tbl)
3931                 return;
3932
3933         if (!netif_running(dev->netdev))
3934                 return;
3935
3936         for (i = 0; i < cp->max_cid_space; i++) {
3937                 struct cnic_context *ctx = &cp->ctx_tbl[i];
3938
3939                 while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
3940                         msleep(10);
3941
3942                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3943                         netdev_warn(dev->netdev, "CID %x not deleted\n",
3944                                    ctx->cid);
3945         }
3946
3947         cancel_delayed_work(&cp->delete_task);
3948         flush_workqueue(cnic_wq);
3949
3950         if (atomic_read(&cp->iscsi_conn) != 0)
3951                 netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
3952                             atomic_read(&cp->iscsi_conn));
3953 }
3954
3955 static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
3956 {
3957         struct cnic_local *cp = dev->cnic_priv;
3958         u32 pfid = cp->pfid;
3959         u32 port = CNIC_PORT(cp);
3960
3961         cnic_init_bnx2x_mac(dev);
3962         cnic_bnx2x_set_tcp_timestamp(dev, 1);
3963
3964         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
3965                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
3966
3967         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3968                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
3969         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3970                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
3971                 DEF_MAX_DA_COUNT);
3972
3973         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3974                  XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
3975         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3976                  XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
3977         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3978                  XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
3979         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3980                 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
3981
3982         CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
3983                 DEF_MAX_CWND);
3984         return 0;
3985 }
3986
3987 static void cnic_delete_task(struct work_struct *work)
3988 {
3989         struct cnic_local *cp;
3990         struct cnic_dev *dev;
3991         u32 i;
3992         int need_resched = 0;
3993
3994         cp = container_of(work, struct cnic_local, delete_task.work);
3995         dev = cp->dev;
3996
3997         if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) {
3998                 struct drv_ctl_info info;
3999
4000                 cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI);
4001
4002                 info.cmd = DRV_CTL_ISCSI_STOPPED_CMD;
4003                 cp->ethdev->drv_ctl(dev->netdev, &info);
4004         }
4005
4006         for (i = 0; i < cp->max_cid_space; i++) {
4007                 struct cnic_context *ctx = &cp->ctx_tbl[i];
4008
4009                 if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
4010                     !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4011                         continue;
4012
4013                 if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
4014                         need_resched = 1;
4015                         continue;
4016                 }
4017
4018                 if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4019                         continue;
4020
4021                 cnic_bnx2x_destroy_ramrod(dev, i);
4022
4023                 cnic_free_bnx2x_conn_resc(dev, i);
4024                 if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
4025                         atomic_dec(&cp->iscsi_conn);
4026
4027                 clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
4028         }
4029
4030         if (need_resched)
4031                 queue_delayed_work(cnic_wq, &cp->delete_task,
4032                                    msecs_to_jiffies(10));
4033
4034 }
4035
4036 static int cnic_cm_open(struct cnic_dev *dev)
4037 {
4038         struct cnic_local *cp = dev->cnic_priv;
4039         int err;
4040
4041         err = cnic_cm_alloc_mem(dev);
4042         if (err)
4043                 return err;
4044
4045         err = cp->start_cm(dev);
4046
4047         if (err)
4048                 goto err_out;
4049
4050         INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
4051
4052         dev->cm_create = cnic_cm_create;
4053         dev->cm_destroy = cnic_cm_destroy;
4054         dev->cm_connect = cnic_cm_connect;
4055         dev->cm_abort = cnic_cm_abort;
4056         dev->cm_close = cnic_cm_close;
4057         dev->cm_select_dev = cnic_cm_select_dev;
4058
4059         cp->ulp_handle[CNIC_ULP_L4] = dev;
4060         rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
4061         return 0;
4062
4063 err_out:
4064         cnic_cm_free_mem(dev);
4065         return err;
4066 }
4067
4068 static int cnic_cm_shutdown(struct cnic_dev *dev)
4069 {
4070         struct cnic_local *cp = dev->cnic_priv;
4071         int i;
4072
4073         cp->stop_cm(dev);
4074
4075         if (!cp->csk_tbl)
4076                 return 0;
4077
4078         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
4079                 struct cnic_sock *csk = &cp->csk_tbl[i];
4080
4081                 clear_bit(SK_F_INUSE, &csk->flags);
4082                 cnic_cm_cleanup(csk);
4083         }
4084         cnic_cm_free_mem(dev);
4085
4086         return 0;
4087 }
4088
4089 static void cnic_init_context(struct cnic_dev *dev, u32 cid)
4090 {
4091         u32 cid_addr;
4092         int i;
4093
4094         cid_addr = GET_CID_ADDR(cid);
4095
4096         for (i = 0; i < CTX_SIZE; i += 4)
4097                 cnic_ctx_wr(dev, cid_addr, i, 0);
4098 }
4099
4100 static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
4101 {
4102         struct cnic_local *cp = dev->cnic_priv;
4103         int ret = 0, i;
4104         u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
4105
4106         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4107                 return 0;
4108
4109         for (i = 0; i < cp->ctx_blks; i++) {
4110                 int j;
4111                 u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
4112                 u32 val;
4113
4114                 memset(cp->ctx_arr[i].ctx, 0, BCM_PAGE_SIZE);
4115
4116                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
4117                         (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
4118                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
4119                         (u64) cp->ctx_arr[i].mapping >> 32);
4120                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
4121                         BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
4122                 for (j = 0; j < 10; j++) {
4123
4124                         val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
4125                         if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
4126                                 break;
4127                         udelay(5);
4128                 }
4129                 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
4130                         ret = -EBUSY;
4131                         break;
4132                 }
4133         }
4134         return ret;
4135 }
4136
4137 static void cnic_free_irq(struct cnic_dev *dev)
4138 {
4139         struct cnic_local *cp = dev->cnic_priv;
4140         struct cnic_eth_dev *ethdev = cp->ethdev;
4141
4142         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4143                 cp->disable_int_sync(dev);
4144                 tasklet_kill(&cp->cnic_irq_task);
4145                 free_irq(ethdev->irq_arr[0].vector, dev);
4146         }
4147 }
4148
4149 static int cnic_request_irq(struct cnic_dev *dev)
4150 {
4151         struct cnic_local *cp = dev->cnic_priv;
4152         struct cnic_eth_dev *ethdev = cp->ethdev;
4153         int err;
4154
4155         err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
4156         if (err)
4157                 tasklet_disable(&cp->cnic_irq_task);
4158
4159         return err;
4160 }
4161
4162 static int cnic_init_bnx2_irq(struct cnic_dev *dev)
4163 {
4164         struct cnic_local *cp = dev->cnic_priv;
4165         struct cnic_eth_dev *ethdev = cp->ethdev;
4166
4167         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4168                 int err, i = 0;
4169                 int sblk_num = cp->status_blk_num;
4170                 u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
4171                            BNX2_HC_SB_CONFIG_1;
4172
4173                 CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
4174
4175                 CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
4176                 CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
4177                 CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
4178
4179                 cp->last_status_idx = cp->status_blk.bnx2->status_idx;
4180                 tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix,
4181                              (unsigned long) dev);
4182                 err = cnic_request_irq(dev);
4183                 if (err)
4184                         return err;
4185
4186                 while (cp->status_blk.bnx2->status_completion_producer_index &&
4187                        i < 10) {
4188                         CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
4189                                 1 << (11 + sblk_num));
4190                         udelay(10);
4191                         i++;
4192                         barrier();
4193                 }
4194                 if (cp->status_blk.bnx2->status_completion_producer_index) {
4195                         cnic_free_irq(dev);
4196                         goto failed;
4197                 }
4198
4199         } else {
4200                 struct status_block *sblk = cp->status_blk.gen;
4201                 u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
4202                 int i = 0;
4203
4204                 while (sblk->status_completion_producer_index && i < 10) {
4205                         CNIC_WR(dev, BNX2_HC_COMMAND,
4206                                 hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
4207                         udelay(10);
4208                         i++;
4209                         barrier();
4210                 }
4211                 if (sblk->status_completion_producer_index)
4212                         goto failed;
4213
4214         }
4215         return 0;
4216
4217 failed:
4218         netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
4219         return -EBUSY;
4220 }
4221
4222 static void cnic_enable_bnx2_int(struct cnic_dev *dev)
4223 {
4224         struct cnic_local *cp = dev->cnic_priv;
4225         struct cnic_eth_dev *ethdev = cp->ethdev;
4226
4227         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4228                 return;
4229
4230         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4231                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
4232 }
4233
4234 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
4235 {
4236         struct cnic_local *cp = dev->cnic_priv;
4237         struct cnic_eth_dev *ethdev = cp->ethdev;
4238
4239         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4240                 return;
4241
4242         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4243                 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4244         CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
4245         synchronize_irq(ethdev->irq_arr[0].vector);
4246 }
4247
4248 static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
4249 {
4250         struct cnic_local *cp = dev->cnic_priv;
4251         struct cnic_eth_dev *ethdev = cp->ethdev;
4252         struct cnic_uio_dev *udev = cp->udev;
4253         u32 cid_addr, tx_cid, sb_id;
4254         u32 val, offset0, offset1, offset2, offset3;
4255         int i;
4256         struct tx_bd *txbd;
4257         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4258         struct status_block *s_blk = cp->status_blk.gen;
4259
4260         sb_id = cp->status_blk_num;
4261         tx_cid = 20;
4262         cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
4263         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4264                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4265
4266                 tx_cid = TX_TSS_CID + sb_id - 1;
4267                 CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
4268                         (TX_TSS_CID << 7));
4269                 cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
4270         }
4271         cp->tx_cons = *cp->tx_cons_ptr;
4272
4273         cid_addr = GET_CID_ADDR(tx_cid);
4274         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
4275                 u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
4276
4277                 for (i = 0; i < PHY_CTX_SIZE; i += 4)
4278                         cnic_ctx_wr(dev, cid_addr2, i, 0);
4279
4280                 offset0 = BNX2_L2CTX_TYPE_XI;
4281                 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
4282                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
4283                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
4284         } else {
4285                 cnic_init_context(dev, tx_cid);
4286                 cnic_init_context(dev, tx_cid + 1);
4287
4288                 offset0 = BNX2_L2CTX_TYPE;
4289                 offset1 = BNX2_L2CTX_CMD_TYPE;
4290                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
4291                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
4292         }
4293         val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
4294         cnic_ctx_wr(dev, cid_addr, offset0, val);
4295
4296         val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
4297         cnic_ctx_wr(dev, cid_addr, offset1, val);
4298
4299         txbd = (struct tx_bd *) udev->l2_ring;
4300
4301         buf_map = udev->l2_buf_map;
4302         for (i = 0; i < MAX_TX_DESC_CNT; i++, txbd++) {
4303                 txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
4304                 txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4305         }
4306         val = (u64) ring_map >> 32;
4307         cnic_ctx_wr(dev, cid_addr, offset2, val);
4308         txbd->tx_bd_haddr_hi = val;
4309
4310         val = (u64) ring_map & 0xffffffff;
4311         cnic_ctx_wr(dev, cid_addr, offset3, val);
4312         txbd->tx_bd_haddr_lo = val;
4313 }
4314
4315 static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
4316 {
4317         struct cnic_local *cp = dev->cnic_priv;
4318         struct cnic_eth_dev *ethdev = cp->ethdev;
4319         struct cnic_uio_dev *udev = cp->udev;
4320         u32 cid_addr, sb_id, val, coal_reg, coal_val;
4321         int i;
4322         struct rx_bd *rxbd;
4323         struct status_block *s_blk = cp->status_blk.gen;
4324         dma_addr_t ring_map = udev->l2_ring_map;
4325
4326         sb_id = cp->status_blk_num;
4327         cnic_init_context(dev, 2);
4328         cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
4329         coal_reg = BNX2_HC_COMMAND;
4330         coal_val = CNIC_RD(dev, coal_reg);
4331         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4332                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4333
4334                 cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
4335                 coal_reg = BNX2_HC_COALESCE_NOW;
4336                 coal_val = 1 << (11 + sb_id);
4337         }
4338         i = 0;
4339         while (!(*cp->rx_cons_ptr != 0) && i < 10) {
4340                 CNIC_WR(dev, coal_reg, coal_val);
4341                 udelay(10);
4342                 i++;
4343                 barrier();
4344         }
4345         cp->rx_cons = *cp->rx_cons_ptr;
4346
4347         cid_addr = GET_CID_ADDR(2);
4348         val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4349               BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4350         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
4351
4352         if (sb_id == 0)
4353                 val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
4354         else
4355                 val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
4356         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
4357
4358         rxbd = (struct rx_bd *) (udev->l2_ring + BCM_PAGE_SIZE);
4359         for (i = 0; i < MAX_RX_DESC_CNT; i++, rxbd++) {
4360                 dma_addr_t buf_map;
4361                 int n = (i % cp->l2_rx_ring_size) + 1;
4362
4363                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4364                 rxbd->rx_bd_len = cp->l2_single_buf_size;
4365                 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
4366                 rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
4367                 rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4368         }
4369         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4370         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
4371         rxbd->rx_bd_haddr_hi = val;
4372
4373         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4374         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
4375         rxbd->rx_bd_haddr_lo = val;
4376
4377         val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
4378         cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
4379 }
4380
4381 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
4382 {
4383         struct kwqe *wqes[1], l2kwqe;
4384
4385         memset(&l2kwqe, 0, sizeof(l2kwqe));
4386         wqes[0] = &l2kwqe;
4387         l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
4388                               (L2_KWQE_OPCODE_VALUE_FLUSH <<
4389                                KWQE_OPCODE_SHIFT) | 2;
4390         dev->submit_kwqes(dev, wqes, 1);
4391 }
4392
4393 static void cnic_set_bnx2_mac(struct cnic_dev *dev)
4394 {
4395         struct cnic_local *cp = dev->cnic_priv;
4396         u32 val;
4397
4398         val = cp->func << 2;
4399
4400         cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
4401
4402         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4403                               BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
4404         dev->mac_addr[0] = (u8) (val >> 8);
4405         dev->mac_addr[1] = (u8) val;
4406
4407         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
4408
4409         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4410                               BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
4411         dev->mac_addr[2] = (u8) (val >> 24);
4412         dev->mac_addr[3] = (u8) (val >> 16);
4413         dev->mac_addr[4] = (u8) (val >> 8);
4414         dev->mac_addr[5] = (u8) val;
4415
4416         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
4417
4418         val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
4419         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4420                 val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
4421
4422         CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
4423         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
4424         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
4425 }
4426
4427 static int cnic_start_bnx2_hw(struct cnic_dev *dev)
4428 {
4429         struct cnic_local *cp = dev->cnic_priv;
4430         struct cnic_eth_dev *ethdev = cp->ethdev;
4431         struct status_block *sblk = cp->status_blk.gen;
4432         u32 val, kcq_cid_addr, kwq_cid_addr;
4433         int err;
4434
4435         cnic_set_bnx2_mac(dev);
4436
4437         val = CNIC_RD(dev, BNX2_MQ_CONFIG);
4438         val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4439         if (BCM_PAGE_BITS > 12)
4440                 val |= (12 - 8)  << 4;
4441         else
4442                 val |= (BCM_PAGE_BITS - 8)  << 4;
4443
4444         CNIC_WR(dev, BNX2_MQ_CONFIG, val);
4445
4446         CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
4447         CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
4448         CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
4449
4450         err = cnic_setup_5709_context(dev, 1);
4451         if (err)
4452                 return err;
4453
4454         cnic_init_context(dev, KWQ_CID);
4455         cnic_init_context(dev, KCQ_CID);
4456
4457         kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
4458         cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
4459
4460         cp->max_kwq_idx = MAX_KWQ_IDX;
4461         cp->kwq_prod_idx = 0;
4462         cp->kwq_con_idx = 0;
4463         set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
4464
4465         if (CHIP_NUM(cp) == CHIP_NUM_5706 || CHIP_NUM(cp) == CHIP_NUM_5708)
4466                 cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
4467         else
4468                 cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
4469
4470         /* Initialize the kernel work queue context. */
4471         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4472               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4473         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
4474
4475         val = (BCM_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
4476         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4477
4478         val = ((BCM_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
4479         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4480
4481         val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
4482         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4483
4484         val = (u32) cp->kwq_info.pgtbl_map;
4485         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4486
4487         kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
4488         cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
4489
4490         cp->kcq1.sw_prod_idx = 0;
4491         cp->kcq1.hw_prod_idx_ptr =
4492                 (u16 *) &sblk->status_completion_producer_index;
4493
4494         cp->kcq1.status_idx_ptr = (u16 *) &sblk->status_idx;
4495
4496         /* Initialize the kernel complete queue context. */
4497         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4498               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4499         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
4500
4501         val = (BCM_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
4502         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4503
4504         val = ((BCM_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
4505         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4506
4507         val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
4508         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4509
4510         val = (u32) cp->kcq1.dma.pgtbl_map;
4511         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4512
4513         cp->int_num = 0;
4514         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4515                 struct status_block_msix *msblk = cp->status_blk.bnx2;
4516                 u32 sb_id = cp->status_blk_num;
4517                 u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
4518
4519                 cp->kcq1.hw_prod_idx_ptr =
4520                         (u16 *) &msblk->status_completion_producer_index;
4521                 cp->kcq1.status_idx_ptr = (u16 *) &msblk->status_idx;
4522                 cp->kwq_con_idx_ptr = (u16 *) &msblk->status_cmd_consumer_index;
4523                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
4524                 cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4525                 cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4526         }
4527
4528         /* Enable Commnad Scheduler notification when we write to the
4529          * host producer index of the kernel contexts. */
4530         CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
4531
4532         /* Enable Command Scheduler notification when we write to either
4533          * the Send Queue or Receive Queue producer indexes of the kernel
4534          * bypass contexts. */
4535         CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
4536         CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
4537
4538         /* Notify COM when the driver post an application buffer. */
4539         CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
4540
4541         /* Set the CP and COM doorbells.  These two processors polls the
4542          * doorbell for a non zero value before running.  This must be done
4543          * after setting up the kernel queue contexts. */
4544         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
4545         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
4546
4547         cnic_init_bnx2_tx_ring(dev);
4548         cnic_init_bnx2_rx_ring(dev);
4549
4550         err = cnic_init_bnx2_irq(dev);
4551         if (err) {
4552                 netdev_err(dev->netdev, "cnic_init_irq failed\n");
4553                 cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
4554                 cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
4555                 return err;
4556         }
4557
4558         return 0;
4559 }
4560
4561 static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
4562 {
4563         struct cnic_local *cp = dev->cnic_priv;
4564         struct cnic_eth_dev *ethdev = cp->ethdev;
4565         u32 start_offset = ethdev->ctx_tbl_offset;
4566         int i;
4567
4568         for (i = 0; i < cp->ctx_blks; i++) {
4569                 struct cnic_ctx *ctx = &cp->ctx_arr[i];
4570                 dma_addr_t map = ctx->mapping;
4571
4572                 if (cp->ctx_align) {
4573                         unsigned long mask = cp->ctx_align - 1;
4574
4575                         map = (map + mask) & ~mask;
4576                 }
4577
4578                 cnic_ctx_tbl_wr(dev, start_offset + i, map);
4579         }
4580 }
4581
4582 static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
4583 {
4584         struct cnic_local *cp = dev->cnic_priv;
4585         struct cnic_eth_dev *ethdev = cp->ethdev;
4586         int err = 0;
4587
4588         tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh,
4589                      (unsigned long) dev);
4590         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
4591                 err = cnic_request_irq(dev);
4592
4593         return err;
4594 }
4595
4596 static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
4597                                                 u16 sb_id, u8 sb_index,
4598                                                 u8 disable)
4599 {
4600
4601         u32 addr = BAR_CSTRORM_INTMEM +
4602                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4603                         offsetof(struct hc_status_block_data_e1x, index_data) +
4604                         sizeof(struct hc_index_data)*sb_index +
4605                         offsetof(struct hc_index_data, flags);
4606         u16 flags = CNIC_RD16(dev, addr);
4607         /* clear and set */
4608         flags &= ~HC_INDEX_DATA_HC_ENABLED;
4609         flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
4610                   HC_INDEX_DATA_HC_ENABLED);
4611         CNIC_WR16(dev, addr, flags);
4612 }
4613
4614 static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
4615 {
4616         struct cnic_local *cp = dev->cnic_priv;
4617         u8 sb_id = cp->status_blk_num;
4618
4619         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4620                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4621                         offsetof(struct hc_status_block_data_e1x, index_data) +
4622                         sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
4623                         offsetof(struct hc_index_data, timeout), 64 / 12);
4624         cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
4625 }
4626
4627 static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
4628 {
4629 }
4630
4631 static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
4632                                     struct client_init_ramrod_data *data)
4633 {
4634         struct cnic_local *cp = dev->cnic_priv;
4635         struct cnic_uio_dev *udev = cp->udev;
4636         union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
4637         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4638         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4639         int port = CNIC_PORT(cp);
4640         int i;
4641         u32 cli = cp->ethdev->iscsi_l2_client_id;
4642         u32 val;
4643
4644         memset(txbd, 0, BCM_PAGE_SIZE);
4645
4646         buf_map = udev->l2_buf_map;
4647         for (i = 0; i < MAX_TX_DESC_CNT; i += 3, txbd += 3) {
4648                 struct eth_tx_start_bd *start_bd = &txbd->start_bd;
4649                 struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
4650
4651                 start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4652                 start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4653                 reg_bd->addr_hi = start_bd->addr_hi;
4654                 reg_bd->addr_lo = start_bd->addr_lo + 0x10;
4655                 start_bd->nbytes = cpu_to_le16(0x10);
4656                 start_bd->nbd = cpu_to_le16(3);
4657                 start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
4658                 start_bd->general_data = (UNICAST_ADDRESS <<
4659                         ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT);
4660                 start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
4661
4662         }
4663
4664         val = (u64) ring_map >> 32;
4665         txbd->next_bd.addr_hi = cpu_to_le32(val);
4666
4667         data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
4668
4669         val = (u64) ring_map & 0xffffffff;
4670         txbd->next_bd.addr_lo = cpu_to_le32(val);
4671
4672         data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
4673
4674         /* Other ramrod params */
4675         data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
4676         data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
4677
4678         /* reset xstorm per client statistics */
4679         if (cli < MAX_STAT_COUNTER_ID) {
4680                 val = BAR_XSTRORM_INTMEM +
4681                       XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4682                 for (i = 0; i < sizeof(struct xstorm_per_client_stats) / 4; i++)
4683                         CNIC_WR(dev, val + i * 4, 0);
4684         }
4685
4686         cp->tx_cons_ptr =
4687                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
4688 }
4689
4690 static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
4691                                     struct client_init_ramrod_data *data)
4692 {
4693         struct cnic_local *cp = dev->cnic_priv;
4694         struct cnic_uio_dev *udev = cp->udev;
4695         struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
4696                                 BCM_PAGE_SIZE);
4697         struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
4698                                 (udev->l2_ring + (2 * BCM_PAGE_SIZE));
4699         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4700         int i;
4701         int port = CNIC_PORT(cp);
4702         u32 cli = cp->ethdev->iscsi_l2_client_id;
4703         int cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4704         u32 val;
4705         dma_addr_t ring_map = udev->l2_ring_map;
4706
4707         /* General data */
4708         data->general.client_id = cli;
4709         data->general.statistics_en_flg = 1;
4710         data->general.statistics_counter_id = cli;
4711         data->general.activate_flg = 1;
4712         data->general.sp_client_id = cli;
4713
4714         for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
4715                 dma_addr_t buf_map;
4716                 int n = (i % cp->l2_rx_ring_size) + 1;
4717
4718                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4719                 rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4720                 rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4721         }
4722
4723         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4724         rxbd->addr_hi = cpu_to_le32(val);
4725         data->rx.bd_page_base.hi = cpu_to_le32(val);
4726
4727         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4728         rxbd->addr_lo = cpu_to_le32(val);
4729         data->rx.bd_page_base.lo = cpu_to_le32(val);
4730
4731         rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
4732         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) >> 32;
4733         rxcqe->addr_hi = cpu_to_le32(val);
4734         data->rx.cqe_page_base.hi = cpu_to_le32(val);
4735
4736         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) & 0xffffffff;
4737         rxcqe->addr_lo = cpu_to_le32(val);
4738         data->rx.cqe_page_base.lo = cpu_to_le32(val);
4739
4740         /* Other ramrod params */
4741         data->rx.client_qzone_id = cl_qzone_id;
4742         data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
4743         data->rx.status_block_id = BNX2X_DEF_SB_ID;
4744
4745         data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
4746         data->rx.bd_buff_size = cpu_to_le16(cp->l2_single_buf_size);
4747
4748         data->rx.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
4749         data->rx.outer_vlan_removal_enable_flg = 1;
4750
4751         /* reset tstorm and ustorm per client statistics */
4752         if (cli < MAX_STAT_COUNTER_ID) {
4753                 val = BAR_TSTRORM_INTMEM +
4754                       TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4755                 for (i = 0; i < sizeof(struct tstorm_per_client_stats) / 4; i++)
4756                         CNIC_WR(dev, val + i * 4, 0);
4757
4758                 val = BAR_USTRORM_INTMEM +
4759                       USTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4760                 for (i = 0; i < sizeof(struct ustorm_per_client_stats) / 4; i++)
4761                         CNIC_WR(dev, val + i * 4, 0);
4762         }
4763
4764         cp->rx_cons_ptr =
4765                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
4766         cp->rx_cons = *cp->rx_cons_ptr;
4767 }
4768
4769 static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
4770 {
4771         struct cnic_local *cp = dev->cnic_priv;
4772         u32 pfid = cp->pfid;
4773
4774         cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
4775                            CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
4776         cp->kcq1.sw_prod_idx = 0;
4777
4778         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4779                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4780
4781                 cp->kcq1.hw_prod_idx_ptr =
4782                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4783                 cp->kcq1.status_idx_ptr =
4784                         &sb->sb.running_index[SM_RX_ID];
4785         } else {
4786                 struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
4787
4788                 cp->kcq1.hw_prod_idx_ptr =
4789                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4790                 cp->kcq1.status_idx_ptr =
4791                         &sb->sb.running_index[SM_RX_ID];
4792         }
4793
4794         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4795                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4796
4797                 cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
4798                                         USTORM_FCOE_EQ_PROD_OFFSET(pfid);
4799                 cp->kcq2.sw_prod_idx = 0;
4800                 cp->kcq2.hw_prod_idx_ptr =
4801                         &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
4802                 cp->kcq2.status_idx_ptr =
4803                         &sb->sb.running_index[SM_RX_ID];
4804         }
4805 }
4806
4807 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
4808 {
4809         struct cnic_local *cp = dev->cnic_priv;
4810         struct cnic_eth_dev *ethdev = cp->ethdev;
4811         int func = CNIC_FUNC(cp), ret, i;
4812         u32 pfid;
4813
4814         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4815                 u32 val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN_OVWR);
4816
4817                 if (!(val & 1))
4818                         val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN);
4819                 else
4820                         val = (val >> 1) & 1;
4821
4822                 if (val)
4823                         cp->pfid = func >> 1;
4824                 else
4825                         cp->pfid = func & 0x6;
4826         } else {
4827                 cp->pfid = func;
4828         }
4829         pfid = cp->pfid;
4830
4831         ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
4832                                cp->iscsi_start_cid, 0);
4833
4834         if (ret)
4835                 return -ENOMEM;
4836
4837         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4838                 ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl,
4839                                         BNX2X_FCOE_NUM_CONNECTIONS,
4840                                         cp->fcoe_start_cid, 0);
4841
4842                 if (ret)
4843                         return -ENOMEM;
4844         }
4845
4846         cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
4847
4848         cnic_init_bnx2x_kcq(dev);
4849
4850         /* Only 1 EQ */
4851         CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
4852         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4853                 CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
4854         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4855                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
4856                 cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
4857         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4858                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
4859                 (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
4860         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4861                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
4862                 cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
4863         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4864                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
4865                 (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
4866         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4867                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
4868         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
4869                 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
4870         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4871                 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
4872                 HC_INDEX_ISCSI_EQ_CONS);
4873
4874         for (i = 0; i < cp->conn_buf_info.num_pages; i++) {
4875                 CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4876                         TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(pfid, i),
4877                         cp->conn_buf_info.pgtbl[2 * i]);
4878                 CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4879                         TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(pfid, i) + 4,
4880                         cp->conn_buf_info.pgtbl[(2 * i) + 1]);
4881         }
4882
4883         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4884                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
4885                 cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
4886         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4887                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
4888                 (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
4889
4890         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4891                 TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
4892
4893         cnic_setup_bnx2x_context(dev);
4894
4895         ret = cnic_init_bnx2x_irq(dev);
4896         if (ret)
4897                 return ret;
4898
4899         return 0;
4900 }
4901
4902 static void cnic_init_rings(struct cnic_dev *dev)
4903 {
4904         struct cnic_local *cp = dev->cnic_priv;
4905         struct cnic_uio_dev *udev = cp->udev;
4906
4907         if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4908                 return;
4909
4910         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4911                 cnic_init_bnx2_tx_ring(dev);
4912                 cnic_init_bnx2_rx_ring(dev);
4913                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4914         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4915                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4916                 u32 cid = cp->ethdev->iscsi_l2_cid;
4917                 u32 cl_qzone_id;
4918                 struct client_init_ramrod_data *data;
4919                 union l5cm_specific_data l5_data;
4920                 struct ustorm_eth_rx_producers rx_prods = {0};
4921                 u32 off, i;
4922
4923                 rx_prods.bd_prod = 0;
4924                 rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
4925                 barrier();
4926
4927                 cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4928
4929                 off = BAR_USTRORM_INTMEM +
4930                         (BNX2X_CHIP_IS_E2(cp->chip_id) ?
4931                          USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
4932                          USTORM_RX_PRODS_E1X_OFFSET(CNIC_PORT(cp), cli));
4933
4934                 for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
4935                         CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
4936
4937                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4938
4939                 data = udev->l2_buf;
4940
4941                 memset(data, 0, sizeof(*data));
4942
4943                 cnic_init_bnx2x_tx_ring(dev, data);
4944                 cnic_init_bnx2x_rx_ring(dev, data);
4945
4946                 l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
4947                 l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
4948
4949                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4950
4951                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
4952                         cid, ETH_CONNECTION_TYPE, &l5_data);
4953
4954                 i = 0;
4955                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
4956                        ++i < 10)
4957                         msleep(1);
4958
4959                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
4960                         netdev_err(dev->netdev,
4961                                 "iSCSI CLIENT_SETUP did not complete\n");
4962                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
4963                 cnic_ring_ctl(dev, cid, cli, 1);
4964         }
4965 }
4966
4967 static void cnic_shutdown_rings(struct cnic_dev *dev)
4968 {
4969         struct cnic_local *cp = dev->cnic_priv;
4970
4971         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4972                 return;
4973
4974         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4975                 cnic_shutdown_bnx2_rx_ring(dev);
4976         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4977                 struct cnic_local *cp = dev->cnic_priv;
4978                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4979                 u32 cid = cp->ethdev->iscsi_l2_cid;
4980                 union l5cm_specific_data l5_data;
4981                 int i;
4982
4983                 cnic_ring_ctl(dev, cid, cli, 0);
4984
4985                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4986
4987                 l5_data.phy_address.lo = cli;
4988                 l5_data.phy_address.hi = 0;
4989                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
4990                         cid, ETH_CONNECTION_TYPE, &l5_data);
4991                 i = 0;
4992                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
4993                        ++i < 10)
4994                         msleep(1);
4995
4996                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
4997                         netdev_err(dev->netdev,
4998                                 "iSCSI CLIENT_HALT did not complete\n");
4999                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5000
5001                 memset(&l5_data, 0, sizeof(l5_data));
5002                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
5003                         cid, NONE_CONNECTION_TYPE, &l5_data);
5004                 msleep(10);
5005         }
5006         clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5007 }
5008
5009 static int cnic_register_netdev(struct cnic_dev *dev)
5010 {
5011         struct cnic_local *cp = dev->cnic_priv;
5012         struct cnic_eth_dev *ethdev = cp->ethdev;
5013         int err;
5014
5015         if (!ethdev)
5016                 return -ENODEV;
5017
5018         if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
5019                 return 0;
5020
5021         err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
5022         if (err)
5023                 netdev_err(dev->netdev, "register_cnic failed\n");
5024
5025         return err;
5026 }
5027
5028 static void cnic_unregister_netdev(struct cnic_dev *dev)
5029 {
5030         struct cnic_local *cp = dev->cnic_priv;
5031         struct cnic_eth_dev *ethdev = cp->ethdev;
5032
5033         if (!ethdev)
5034                 return;
5035
5036         ethdev->drv_unregister_cnic(dev->netdev);
5037 }
5038
5039 static int cnic_start_hw(struct cnic_dev *dev)
5040 {
5041         struct cnic_local *cp = dev->cnic_priv;
5042         struct cnic_eth_dev *ethdev = cp->ethdev;
5043         int err;
5044
5045         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
5046                 return -EALREADY;
5047
5048         dev->regview = ethdev->io_base;
5049         pci_dev_get(dev->pcidev);
5050         cp->func = PCI_FUNC(dev->pcidev->devfn);
5051         cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
5052         cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
5053
5054         err = cp->alloc_resc(dev);
5055         if (err) {
5056                 netdev_err(dev->netdev, "allocate resource failure\n");
5057                 goto err1;
5058         }
5059
5060         err = cp->start_hw(dev);
5061         if (err)
5062                 goto err1;
5063
5064         err = cnic_cm_open(dev);
5065         if (err)
5066                 goto err1;
5067
5068         set_bit(CNIC_F_CNIC_UP, &dev->flags);
5069
5070         cp->enable_int(dev);
5071
5072         return 0;
5073
5074 err1:
5075         cp->free_resc(dev);
5076         pci_dev_put(dev->pcidev);
5077         return err;
5078 }
5079
5080 static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
5081 {
5082         cnic_disable_bnx2_int_sync(dev);
5083
5084         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
5085         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
5086
5087         cnic_init_context(dev, KWQ_CID);
5088         cnic_init_context(dev, KCQ_CID);
5089
5090         cnic_setup_5709_context(dev, 0);
5091         cnic_free_irq(dev);
5092
5093         cnic_free_resc(dev);
5094 }
5095
5096
5097 static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
5098 {
5099         struct cnic_local *cp = dev->cnic_priv;
5100
5101         cnic_free_irq(dev);
5102         *cp->kcq1.hw_prod_idx_ptr = 0;
5103         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5104                 CSTORM_ISCSI_EQ_CONS_OFFSET(cp->pfid, 0), 0);
5105         CNIC_WR16(dev, cp->kcq1.io_addr, 0);
5106         cnic_free_resc(dev);
5107 }
5108
5109 static void cnic_stop_hw(struct cnic_dev *dev)
5110 {
5111         if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5112                 struct cnic_local *cp = dev->cnic_priv;
5113                 int i = 0;
5114
5115                 /* Need to wait for the ring shutdown event to complete
5116                  * before clearing the CNIC_UP flag.
5117                  */
5118                 while (cp->udev->uio_dev != -1 && i < 15) {
5119                         msleep(100);
5120                         i++;
5121                 }
5122                 cnic_shutdown_rings(dev);
5123                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
5124                 rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], NULL);
5125                 synchronize_rcu();
5126                 cnic_cm_shutdown(dev);
5127                 cp->stop_hw(dev);
5128                 pci_dev_put(dev->pcidev);
5129         }
5130 }
5131
5132 static void cnic_free_dev(struct cnic_dev *dev)
5133 {
5134         int i = 0;
5135
5136         while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
5137                 msleep(100);
5138                 i++;
5139         }
5140         if (atomic_read(&dev->ref_count) != 0)
5141                 netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
5142
5143         netdev_info(dev->netdev, "Removed CNIC device\n");
5144         dev_put(dev->netdev);
5145         kfree(dev);
5146 }
5147
5148 static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
5149                                        struct pci_dev *pdev)
5150 {
5151         struct cnic_dev *cdev;
5152         struct cnic_local *cp;
5153         int alloc_size;
5154
5155         alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
5156
5157         cdev = kzalloc(alloc_size , GFP_KERNEL);
5158         if (cdev == NULL) {
5159                 netdev_err(dev, "allocate dev struct failure\n");
5160                 return NULL;
5161         }
5162
5163         cdev->netdev = dev;
5164         cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
5165         cdev->register_device = cnic_register_device;
5166         cdev->unregister_device = cnic_unregister_device;
5167         cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
5168
5169         cp = cdev->cnic_priv;
5170         cp->dev = cdev;
5171         cp->l2_single_buf_size = 0x400;
5172         cp->l2_rx_ring_size = 3;
5173
5174         spin_lock_init(&cp->cnic_ulp_lock);
5175
5176         netdev_info(dev, "Added CNIC device\n");
5177
5178         return cdev;
5179 }
5180
5181 static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
5182 {
5183         struct pci_dev *pdev;
5184         struct cnic_dev *cdev;
5185         struct cnic_local *cp;
5186         struct cnic_eth_dev *ethdev = NULL;
5187         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5188
5189         probe = symbol_get(bnx2_cnic_probe);
5190         if (probe) {
5191                 ethdev = (*probe)(dev);
5192                 symbol_put(bnx2_cnic_probe);
5193         }
5194         if (!ethdev)
5195                 return NULL;
5196
5197         pdev = ethdev->pdev;
5198         if (!pdev)
5199                 return NULL;
5200
5201         dev_hold(dev);
5202         pci_dev_get(pdev);
5203         if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
5204              pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
5205             (pdev->revision < 0x10)) {
5206                 pci_dev_put(pdev);
5207                 goto cnic_err;
5208         }
5209         pci_dev_put(pdev);
5210
5211         cdev = cnic_alloc_dev(dev, pdev);
5212         if (cdev == NULL)
5213                 goto cnic_err;
5214
5215         set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
5216         cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
5217
5218         cp = cdev->cnic_priv;
5219         cp->ethdev = ethdev;
5220         cdev->pcidev = pdev;
5221         cp->chip_id = ethdev->chip_id;
5222
5223         cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5224
5225         cp->cnic_ops = &cnic_bnx2_ops;
5226         cp->start_hw = cnic_start_bnx2_hw;
5227         cp->stop_hw = cnic_stop_bnx2_hw;
5228         cp->setup_pgtbl = cnic_setup_page_tbl;
5229         cp->alloc_resc = cnic_alloc_bnx2_resc;
5230         cp->free_resc = cnic_free_resc;
5231         cp->start_cm = cnic_cm_init_bnx2_hw;
5232         cp->stop_cm = cnic_cm_stop_bnx2_hw;
5233         cp->enable_int = cnic_enable_bnx2_int;
5234         cp->disable_int_sync = cnic_disable_bnx2_int_sync;
5235         cp->close_conn = cnic_close_bnx2_conn;
5236         return cdev;
5237
5238 cnic_err:
5239         dev_put(dev);
5240         return NULL;
5241 }
5242
5243 static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
5244 {
5245         struct pci_dev *pdev;
5246         struct cnic_dev *cdev;
5247         struct cnic_local *cp;
5248         struct cnic_eth_dev *ethdev = NULL;
5249         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5250
5251         probe = symbol_get(bnx2x_cnic_probe);
5252         if (probe) {
5253                 ethdev = (*probe)(dev);
5254                 symbol_put(bnx2x_cnic_probe);
5255         }
5256         if (!ethdev)
5257                 return NULL;
5258
5259         pdev = ethdev->pdev;
5260         if (!pdev)
5261                 return NULL;
5262
5263         dev_hold(dev);
5264         cdev = cnic_alloc_dev(dev, pdev);
5265         if (cdev == NULL) {
5266                 dev_put(dev);
5267                 return NULL;
5268         }
5269
5270         set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
5271         cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
5272
5273         cp = cdev->cnic_priv;
5274         cp->ethdev = ethdev;
5275         cdev->pcidev = pdev;
5276         cp->chip_id = ethdev->chip_id;
5277
5278         if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
5279                 cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5280         if (BNX2X_CHIP_IS_E2(cp->chip_id) &&
5281             !(ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
5282                 cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
5283
5284         memcpy(cdev->mac_addr, ethdev->iscsi_mac, 6);
5285
5286         cp->cnic_ops = &cnic_bnx2x_ops;
5287         cp->start_hw = cnic_start_bnx2x_hw;
5288         cp->stop_hw = cnic_stop_bnx2x_hw;
5289         cp->setup_pgtbl = cnic_setup_page_tbl_le;
5290         cp->alloc_resc = cnic_alloc_bnx2x_resc;
5291         cp->free_resc = cnic_free_resc;
5292         cp->start_cm = cnic_cm_init_bnx2x_hw;
5293         cp->stop_cm = cnic_cm_stop_bnx2x_hw;
5294         cp->enable_int = cnic_enable_bnx2x_int;
5295         cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
5296         if (BNX2X_CHIP_IS_E2(cp->chip_id))
5297                 cp->ack_int = cnic_ack_bnx2x_e2_msix;
5298         else
5299                 cp->ack_int = cnic_ack_bnx2x_msix;
5300         cp->close_conn = cnic_close_bnx2x_conn;
5301         return cdev;
5302 }
5303
5304 static struct cnic_dev *is_cnic_dev(struct net_device *dev)
5305 {
5306         struct ethtool_drvinfo drvinfo;
5307         struct cnic_dev *cdev = NULL;
5308
5309         if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
5310                 memset(&drvinfo, 0, sizeof(drvinfo));
5311                 dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
5312
5313                 if (!strcmp(drvinfo.driver, "bnx2"))
5314                         cdev = init_bnx2_cnic(dev);
5315                 if (!strcmp(drvinfo.driver, "bnx2x"))
5316                         cdev = init_bnx2x_cnic(dev);
5317                 if (cdev) {
5318                         write_lock(&cnic_dev_lock);
5319                         list_add(&cdev->list, &cnic_dev_list);
5320                         write_unlock(&cnic_dev_lock);
5321                 }
5322         }
5323         return cdev;
5324 }
5325
5326 /**
5327  * netdev event handler
5328  */
5329 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
5330                                                          void *ptr)
5331 {
5332         struct net_device *netdev = ptr;
5333         struct cnic_dev *dev;
5334         int if_type;
5335         int new_dev = 0;
5336
5337         dev = cnic_from_netdev(netdev);
5338
5339         if (!dev && (event == NETDEV_REGISTER || netif_running(netdev))) {
5340                 /* Check for the hot-plug device */
5341                 dev = is_cnic_dev(netdev);
5342                 if (dev) {
5343                         new_dev = 1;
5344                         cnic_hold(dev);
5345                 }
5346         }
5347         if (dev) {
5348                 struct cnic_local *cp = dev->cnic_priv;
5349
5350                 if (new_dev)
5351                         cnic_ulp_init(dev);
5352                 else if (event == NETDEV_UNREGISTER)
5353                         cnic_ulp_exit(dev);
5354
5355                 if (event == NETDEV_UP || (new_dev && netif_running(netdev))) {
5356                         if (cnic_register_netdev(dev) != 0) {
5357                                 cnic_put(dev);
5358                                 goto done;
5359                         }
5360                         if (!cnic_start_hw(dev))
5361                                 cnic_ulp_start(dev);
5362                 }
5363
5364                 rcu_read_lock();
5365                 for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
5366                         struct cnic_ulp_ops *ulp_ops;
5367                         void *ctx;
5368
5369                         ulp_ops = rcu_dereference(cp->ulp_ops[if_type]);
5370                         if (!ulp_ops || !ulp_ops->indicate_netevent)
5371                                 continue;
5372
5373                         ctx = cp->ulp_handle[if_type];
5374
5375                         ulp_ops->indicate_netevent(ctx, event);
5376                 }
5377                 rcu_read_unlock();
5378
5379                 if (event == NETDEV_GOING_DOWN) {
5380                         cnic_ulp_stop(dev);
5381                         cnic_stop_hw(dev);
5382                         cnic_unregister_netdev(dev);
5383                 } else if (event == NETDEV_UNREGISTER) {
5384                         write_lock(&cnic_dev_lock);
5385                         list_del_init(&dev->list);
5386                         write_unlock(&cnic_dev_lock);
5387
5388                         cnic_put(dev);
5389                         cnic_free_dev(dev);
5390                         goto done;
5391                 }
5392                 cnic_put(dev);
5393         }
5394 done:
5395         return NOTIFY_DONE;
5396 }
5397
5398 static struct notifier_block cnic_netdev_notifier = {
5399         .notifier_call = cnic_netdev_event
5400 };
5401
5402 static void cnic_release(void)
5403 {
5404         struct cnic_dev *dev;
5405         struct cnic_uio_dev *udev;
5406
5407         while (!list_empty(&cnic_dev_list)) {
5408                 dev = list_entry(cnic_dev_list.next, struct cnic_dev, list);
5409                 if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5410                         cnic_ulp_stop(dev);
5411                         cnic_stop_hw(dev);
5412                 }
5413
5414                 cnic_ulp_exit(dev);
5415                 cnic_unregister_netdev(dev);
5416                 list_del_init(&dev->list);
5417                 cnic_free_dev(dev);
5418         }
5419         while (!list_empty(&cnic_udev_list)) {
5420                 udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
5421                                   list);
5422                 cnic_free_uio(udev);
5423         }
5424 }
5425
5426 static int __init cnic_init(void)
5427 {
5428         int rc = 0;
5429
5430         pr_info("%s", version);
5431
5432         rc = register_netdevice_notifier(&cnic_netdev_notifier);
5433         if (rc) {
5434                 cnic_release();
5435                 return rc;
5436         }
5437
5438         cnic_wq = create_singlethread_workqueue("cnic_wq");
5439         if (!cnic_wq) {
5440                 cnic_release();
5441                 unregister_netdevice_notifier(&cnic_netdev_notifier);
5442                 return -ENOMEM;
5443         }
5444
5445         return 0;
5446 }
5447
5448 static void __exit cnic_exit(void)
5449 {
5450         unregister_netdevice_notifier(&cnic_netdev_notifier);
5451         cnic_release();
5452         destroy_workqueue(cnic_wq);
5453 }
5454
5455 module_init(cnic_init);
5456 module_exit(cnic_exit);