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 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  31 #define BCM_VLAN 1
  32 #endif
  33 #include <net/ip.h>
  34 #include <net/tcp.h>
  35 #include <net/route.h>
  36 #include <net/ipv6.h>
  37 #include <net/ip6_route.h>
  38 #include <net/ip6_checksum.h>
  39 #include <scsi/iscsi_if.h>
  40
  41 #include "cnic_if.h"
  42 #include "bnx2.h"
  43 #include "bnx2x/bnx2x_reg.h"
  44 #include "bnx2x/bnx2x_fw_defs.h"
  45 #include "bnx2x/bnx2x_hsi.h"
  46 #include "../scsi/bnx2i/57xx_iscsi_constants.h"
  47 #include "../scsi/bnx2i/57xx_iscsi_hsi.h"
  48 #include "cnic.h"
  49 #include "cnic_defs.h"
  50
  51 #define DRV_MODULE_NAME         "cnic"
  52
  53 static char version[] __devinitdata =
  54         "Broadcom NetXtreme II CNIC Driver " DRV_MODULE_NAME " v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
  55
  56 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
  57               "Chen (zongxi@broadcom.com");
  58 MODULE_DESCRIPTION("Broadcom NetXtreme II CNIC Driver");
  59 MODULE_LICENSE("GPL");
  60 MODULE_VERSION(CNIC_MODULE_VERSION);
  61
  62 /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
  63 static LIST_HEAD(cnic_dev_list);
  64 static LIST_HEAD(cnic_udev_list);
  65 static DEFINE_RWLOCK(cnic_dev_lock);
  66 static DEFINE_MUTEX(cnic_lock);
  67
  68 static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
  69
  70 /* helper function, assuming cnic_lock is held */
  71 static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
  72 {
  73         return rcu_dereference_protected(cnic_ulp_tbl[type],
  74                                          lockdep_is_held(&cnic_lock));
  75 }
  76
  77 static int cnic_service_bnx2(void *, void *);
  78 static int cnic_service_bnx2x(void *, void *);
  79 static int cnic_ctl(void *, struct cnic_ctl_info *);
  80
  81 static struct cnic_ops cnic_bnx2_ops = {
  82         .cnic_owner     = THIS_MODULE,
  83         .cnic_handler   = cnic_service_bnx2,
  84         .cnic_ctl       = cnic_ctl,
  85 };
  86
  87 static struct cnic_ops cnic_bnx2x_ops = {
  88         .cnic_owner     = THIS_MODULE,
  89         .cnic_handler   = cnic_service_bnx2x,
  90         .cnic_ctl       = cnic_ctl,
  91 };
  92
  93 static struct workqueue_struct *cnic_wq;
  94
  95 static void cnic_shutdown_rings(struct cnic_dev *);
  96 static void cnic_init_rings(struct cnic_dev *);
  97 static int cnic_cm_set_pg(struct cnic_sock *);
  98
  99 static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 100 {
 101         struct cnic_uio_dev *udev = uinfo->priv;
 102         struct cnic_dev *dev;
 103
 104         if (!capable(CAP_NET_ADMIN))
 105                 return -EPERM;
 106
 107         if (udev->uio_dev != -1)
 108                 return -EBUSY;
 109
 110         rtnl_lock();
 111         dev = udev->dev;
 112
 113         if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
 114                 rtnl_unlock();
 115                 return -ENODEV;
 116         }
 117
 118         udev->uio_dev = iminor(inode);
 119
 120         cnic_shutdown_rings(dev);
 121         cnic_init_rings(dev);
 122         rtnl_unlock();
 123
 124         return 0;
 125 }
 126
 127 static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 128 {
 129         struct cnic_uio_dev *udev = uinfo->priv;
 130
 131         udev->uio_dev = -1;
 132         return 0;
 133 }
 134
 135 static inline void cnic_hold(struct cnic_dev *dev)
 136 {
 137         atomic_inc(&dev->ref_count);
 138 }
 139
 140 static inline void cnic_put(struct cnic_dev *dev)
 141 {
 142         atomic_dec(&dev->ref_count);
 143 }
 144
 145 static inline void csk_hold(struct cnic_sock *csk)
 146 {
 147         atomic_inc(&csk->ref_count);
 148 }
 149
 150 static inline void csk_put(struct cnic_sock *csk)
 151 {
 152         atomic_dec(&csk->ref_count);
 153 }
 154
 155 static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
 156 {
 157         struct cnic_dev *cdev;
 158
 159         read_lock(&cnic_dev_lock);
 160         list_for_each_entry(cdev, &cnic_dev_list, list) {
 161                 if (netdev == cdev->netdev) {
 162                         cnic_hold(cdev);
 163                         read_unlock(&cnic_dev_lock);
 164                         return cdev;
 165                 }
 166         }
 167         read_unlock(&cnic_dev_lock);
 168         return NULL;
 169 }
 170
 171 static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
 172 {
 173         atomic_inc(&ulp_ops->ref_count);
 174 }
 175
 176 static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
 177 {
 178         atomic_dec(&ulp_ops->ref_count);
 179 }
 180
 181 static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
 182 {
 183         struct cnic_local *cp = dev->cnic_priv;
 184         struct cnic_eth_dev *ethdev = cp->ethdev;
 185         struct drv_ctl_info info;
 186         struct drv_ctl_io *io = &info.data.io;
 187
 188         info.cmd = DRV_CTL_CTX_WR_CMD;
 189         io->cid_addr = cid_addr;
 190         io->offset = off;
 191         io->data = val;
 192         ethdev->drv_ctl(dev->netdev, &info);
 193 }
 194
 195 static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
 196 {
 197         struct cnic_local *cp = dev->cnic_priv;
 198         struct cnic_eth_dev *ethdev = cp->ethdev;
 199         struct drv_ctl_info info;
 200         struct drv_ctl_io *io = &info.data.io;
 201
 202         info.cmd = DRV_CTL_CTXTBL_WR_CMD;
 203         io->offset = off;
 204         io->dma_addr = addr;
 205         ethdev->drv_ctl(dev->netdev, &info);
 206 }
 207
 208 static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
 209 {
 210         struct cnic_local *cp = dev->cnic_priv;
 211         struct cnic_eth_dev *ethdev = cp->ethdev;
 212         struct drv_ctl_info info;
 213         struct drv_ctl_l2_ring *ring = &info.data.ring;
 214
 215         if (start)
 216                 info.cmd = DRV_CTL_START_L2_CMD;
 217         else
 218                 info.cmd = DRV_CTL_STOP_L2_CMD;
 219
 220         ring->cid = cid;
 221         ring->client_id = cl_id;
 222         ethdev->drv_ctl(dev->netdev, &info);
 223 }
 224
 225 static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
 226 {
 227         struct cnic_local *cp = dev->cnic_priv;
 228         struct cnic_eth_dev *ethdev = cp->ethdev;
 229         struct drv_ctl_info info;
 230         struct drv_ctl_io *io = &info.data.io;
 231
 232         info.cmd = DRV_CTL_IO_WR_CMD;
 233         io->offset = off;
 234         io->data = val;
 235         ethdev->drv_ctl(dev->netdev, &info);
 236 }
 237
 238 static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
 239 {
 240         struct cnic_local *cp = dev->cnic_priv;
 241         struct cnic_eth_dev *ethdev = cp->ethdev;
 242         struct drv_ctl_info info;
 243         struct drv_ctl_io *io = &info.data.io;
 244
 245         info.cmd = DRV_CTL_IO_RD_CMD;
 246         io->offset = off;
 247         ethdev->drv_ctl(dev->netdev, &info);
 248         return io->data;
 249 }
 250
 251 static int cnic_in_use(struct cnic_sock *csk)
 252 {
 253         return test_bit(SK_F_INUSE, &csk->flags);
 254 }
 255
 256 static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
 257 {
 258         struct cnic_local *cp = dev->cnic_priv;
 259         struct cnic_eth_dev *ethdev = cp->ethdev;
 260         struct drv_ctl_info info;
 261
 262         info.cmd = cmd;
 263         info.data.credit.credit_count = count;
 264         ethdev->drv_ctl(dev->netdev, &info);
 265 }
 266
 267 static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
 268 {
 269         u32 i;
 270
 271         for (i = 0; i < cp->max_cid_space; i++) {
 272                 if (cp->ctx_tbl[i].cid == cid) {
 273                         *l5_cid = i;
 274                         return 0;
 275                 }
 276         }
 277         return -EINVAL;
 278 }
 279
 280 static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
 281                            struct cnic_sock *csk)
 282 {
 283         struct iscsi_path path_req;
 284         char *buf = NULL;
 285         u16 len = 0;
 286         u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 287         struct cnic_ulp_ops *ulp_ops;
 288         struct cnic_uio_dev *udev = cp->udev;
 289         int rc = 0, retry = 0;
 290
 291         if (!udev || udev->uio_dev == -1)
 292                 return -ENODEV;
 293
 294         if (csk) {
 295                 len = sizeof(path_req);
 296                 buf = (char *) &path_req;
 297                 memset(&path_req, 0, len);
 298
 299                 msg_type = ISCSI_KEVENT_PATH_REQ;
 300                 path_req.handle = (u64) csk->l5_cid;
 301                 if (test_bit(SK_F_IPV6, &csk->flags)) {
 302                         memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
 303                                sizeof(struct in6_addr));
 304                         path_req.ip_addr_len = 16;
 305                 } else {
 306                         memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
 307                                sizeof(struct in_addr));
 308                         path_req.ip_addr_len = 4;
 309                 }
 310                 path_req.vlan_id = csk->vlan_id;
 311                 path_req.pmtu = csk->mtu;
 312         }
 313
 314         while (retry < 3) {
 315                 rc = 0;
 316                 rcu_read_lock();
 317                 ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
 318                 if (ulp_ops)
 319                         rc = ulp_ops->iscsi_nl_send_msg(
 320                                 cp->ulp_handle[CNIC_ULP_ISCSI],
 321                                 msg_type, buf, len);
 322                 rcu_read_unlock();
 323                 if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
 324                         break;
 325
 326                 msleep(100);
 327                 retry++;
 328         }
 329         return 0;
 330 }
 331
 332 static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
 333
 334 static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 335                                   char *buf, u16 len)
 336 {
 337         int rc = -EINVAL;
 338
 339         switch (msg_type) {
 340         case ISCSI_UEVENT_PATH_UPDATE: {
 341                 struct cnic_local *cp;
 342                 u32 l5_cid;
 343                 struct cnic_sock *csk;
 344                 struct iscsi_path *path_resp;
 345
 346                 if (len < sizeof(*path_resp))
 347                         break;
 348
 349                 path_resp = (struct iscsi_path *) buf;
 350                 cp = dev->cnic_priv;
 351                 l5_cid = (u32) path_resp->handle;
 352                 if (l5_cid >= MAX_CM_SK_TBL_SZ)
 353                         break;
 354
 355                 rcu_read_lock();
 356                 if (!rcu_dereference(cp->ulp_ops[CNIC_ULP_L4])) {
 357                         rc = -ENODEV;
 358                         rcu_read_unlock();
 359                         break;
 360                 }
 361                 csk = &cp->csk_tbl[l5_cid];
 362                 csk_hold(csk);
 363                 if (cnic_in_use(csk) &&
 364                     test_bit(SK_F_CONNECT_START, &csk->flags)) {
 365
 366                         memcpy(csk->ha, path_resp->mac_addr, 6);
 367                         if (test_bit(SK_F_IPV6, &csk->flags))
 368                                 memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 369                                        sizeof(struct in6_addr));
 370                         else
 371                                 memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
 372                                        sizeof(struct in_addr));
 373
 374                         if (is_valid_ether_addr(csk->ha)) {
 375                                 cnic_cm_set_pg(csk);
 376                         } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
 377                                 !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 378
 379                                 cnic_cm_upcall(cp, csk,
 380                                         L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
 381                                 clear_bit(SK_F_CONNECT_START, &csk->flags);
 382                         }
 383                 }
 384                 csk_put(csk);
 385                 rcu_read_unlock();
 386                 rc = 0;
 387         }
 388         }
 389
 390         return rc;
 391 }
 392
 393 static int cnic_offld_prep(struct cnic_sock *csk)
 394 {
 395         if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 396                 return 0;
 397
 398         if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
 399                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 400                 return 0;
 401         }
 402
 403         return 1;
 404 }
 405
 406 static int cnic_close_prep(struct cnic_sock *csk)
 407 {
 408         clear_bit(SK_F_CONNECT_START, &csk->flags);
 409         smp_mb__after_clear_bit();
 410
 411         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 412                 while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 413                         msleep(1);
 414
 415                 return 1;
 416         }
 417         return 0;
 418 }
 419
 420 static int cnic_abort_prep(struct cnic_sock *csk)
 421 {
 422         clear_bit(SK_F_CONNECT_START, &csk->flags);
 423         smp_mb__after_clear_bit();
 424
 425         while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 426                 msleep(1);
 427
 428         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 429                 csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
 430                 return 1;
 431         }
 432
 433         return 0;
 434 }
 435
 436 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 437 {
 438         struct cnic_dev *dev;
 439
 440         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 441                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 442                 return -EINVAL;
 443         }
 444         mutex_lock(&cnic_lock);
 445         if (cnic_ulp_tbl_prot(ulp_type)) {
 446                 pr_err("%s: Type %d has already been registered\n",
 447                        __func__, ulp_type);
 448                 mutex_unlock(&cnic_lock);
 449                 return -EBUSY;
 450         }
 451
 452         read_lock(&cnic_dev_lock);
 453         list_for_each_entry(dev, &cnic_dev_list, list) {
 454                 struct cnic_local *cp = dev->cnic_priv;
 455
 456                 clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
 457         }
 458         read_unlock(&cnic_dev_lock);
 459
 460         atomic_set(&ulp_ops->ref_count, 0);
 461         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
 462         mutex_unlock(&cnic_lock);
 463
 464         /* Prevent race conditions with netdev_event */
 465         rtnl_lock();
 466         list_for_each_entry(dev, &cnic_dev_list, list) {
 467                 struct cnic_local *cp = dev->cnic_priv;
 468
 469                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 470                         ulp_ops->cnic_init(dev);
 471         }
 472         rtnl_unlock();
 473
 474         return 0;
 475 }
 476
 477 int cnic_unregister_driver(int ulp_type)
 478 {
 479         struct cnic_dev *dev;
 480         struct cnic_ulp_ops *ulp_ops;
 481         int i = 0;
 482
 483         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 484                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 485                 return -EINVAL;
 486         }
 487         mutex_lock(&cnic_lock);
 488         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 489         if (!ulp_ops) {
 490                 pr_err("%s: Type %d has not been registered\n",
 491                        __func__, ulp_type);
 492                 goto out_unlock;
 493         }
 494         read_lock(&cnic_dev_lock);
 495         list_for_each_entry(dev, &cnic_dev_list, list) {
 496                 struct cnic_local *cp = dev->cnic_priv;
 497
 498                 if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 499                         pr_err("%s: Type %d still has devices registered\n",
 500                                __func__, ulp_type);
 501                         read_unlock(&cnic_dev_lock);
 502                         goto out_unlock;
 503                 }
 504         }
 505         read_unlock(&cnic_dev_lock);
 506
 507         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], NULL);
 508
 509         mutex_unlock(&cnic_lock);
 510         synchronize_rcu();
 511         while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
 512                 msleep(100);
 513                 i++;
 514         }
 515
 516         if (atomic_read(&ulp_ops->ref_count) != 0)
 517                 netdev_warn(dev->netdev, "Failed waiting for ref count to go to zero\n");
 518         return 0;
 519
 520 out_unlock:
 521         mutex_unlock(&cnic_lock);
 522         return -EINVAL;
 523 }
 524
 525 static int cnic_start_hw(struct cnic_dev *);
 526 static void cnic_stop_hw(struct cnic_dev *);
 527
 528 static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
 529                                 void *ulp_ctx)
 530 {
 531         struct cnic_local *cp = dev->cnic_priv;
 532         struct cnic_ulp_ops *ulp_ops;
 533
 534         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 535                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 536                 return -EINVAL;
 537         }
 538         mutex_lock(&cnic_lock);
 539         if (cnic_ulp_tbl_prot(ulp_type) == NULL) {
 540                 pr_err("%s: Driver with type %d has not been registered\n",
 541                        __func__, ulp_type);
 542                 mutex_unlock(&cnic_lock);
 543                 return -EAGAIN;
 544         }
 545         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 546                 pr_err("%s: Type %d has already been registered to this device\n",
 547                        __func__, ulp_type);
 548                 mutex_unlock(&cnic_lock);
 549                 return -EBUSY;
 550         }
 551
 552         clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
 553         cp->ulp_handle[ulp_type] = ulp_ctx;
 554         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 555         rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
 556         cnic_hold(dev);
 557
 558         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
 559                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
 560                         ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
 561
 562         mutex_unlock(&cnic_lock);
 563
 564         return 0;
 565
 566 }
 567 EXPORT_SYMBOL(cnic_register_driver);
 568
 569 static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
 570 {
 571         struct cnic_local *cp = dev->cnic_priv;
 572         int i = 0;
 573
 574         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 575                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 576                 return -EINVAL;
 577         }
 578         mutex_lock(&cnic_lock);
 579         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 580                 rcu_assign_pointer(cp->ulp_ops[ulp_type], NULL);
 581                 cnic_put(dev);
 582         } else {
 583                 pr_err("%s: device not registered to this ulp type %d\n",
 584                        __func__, ulp_type);
 585                 mutex_unlock(&cnic_lock);
 586                 return -EINVAL;
 587         }
 588         mutex_unlock(&cnic_lock);
 589
 590         if (ulp_type == CNIC_ULP_ISCSI)
 591                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 592
 593         synchronize_rcu();
 594
 595         while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
 596                i < 20) {
 597                 msleep(100);
 598                 i++;
 599         }
 600         if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
 601                 netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
 602
 603         return 0;
 604 }
 605 EXPORT_SYMBOL(cnic_unregister_driver);
 606
 607 static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id)
 608 {
 609         id_tbl->start = start_id;
 610         id_tbl->max = size;
 611         id_tbl->next = 0;
 612         spin_lock_init(&id_tbl->lock);
 613         id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL);
 614         if (!id_tbl->table)
 615                 return -ENOMEM;
 616
 617         return 0;
 618 }
 619
 620 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 621 {
 622         kfree(id_tbl->table);
 623         id_tbl->table = NULL;
 624 }
 625
 626 static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
 627 {
 628         int ret = -1;
 629
 630         id -= id_tbl->start;
 631         if (id >= id_tbl->max)
 632                 return ret;
 633
 634         spin_lock(&id_tbl->lock);
 635         if (!test_bit(id, id_tbl->table)) {
 636                 set_bit(id, id_tbl->table);
 637                 ret = 0;
 638         }
 639         spin_unlock(&id_tbl->lock);
 640         return ret;
 641 }
 642
 643 /* Returns -1 if not successful */
 644 static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
 645 {
 646         u32 id;
 647
 648         spin_lock(&id_tbl->lock);
 649         id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
 650         if (id >= id_tbl->max) {
 651                 id = -1;
 652                 if (id_tbl->next != 0) {
 653                         id = find_first_zero_bit(id_tbl->table, id_tbl->next);
 654                         if (id >= id_tbl->next)
 655                                 id = -1;
 656                 }
 657         }
 658
 659         if (id < id_tbl->max) {
 660                 set_bit(id, id_tbl->table);
 661                 id_tbl->next = (id + 1) & (id_tbl->max - 1);
 662                 id += id_tbl->start;
 663         }
 664
 665         spin_unlock(&id_tbl->lock);
 666
 667         return id;
 668 }
 669
 670 static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
 671 {
 672         if (id == -1)
 673                 return;
 674
 675         id -= id_tbl->start;
 676         if (id >= id_tbl->max)
 677                 return;
 678
 679         clear_bit(id, id_tbl->table);
 680 }
 681
 682 static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
 683 {
 684         int i;
 685
 686         if (!dma->pg_arr)
 687                 return;
 688
 689         for (i = 0; i < dma->num_pages; i++) {
 690                 if (dma->pg_arr[i]) {
 691                         dma_free_coherent(&dev->pcidev->dev, BCM_PAGE_SIZE,
 692                                           dma->pg_arr[i], dma->pg_map_arr[i]);
 693                         dma->pg_arr[i] = NULL;
 694                 }
 695         }
 696         if (dma->pgtbl) {
 697                 dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 698                                   dma->pgtbl, dma->pgtbl_map);
 699                 dma->pgtbl = NULL;
 700         }
 701         kfree(dma->pg_arr);
 702         dma->pg_arr = NULL;
 703         dma->num_pages = 0;
 704 }
 705
 706 static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
 707 {
 708         int i;
 709         __le32 *page_table = (__le32 *) dma->pgtbl;
 710
 711         for (i = 0; i < dma->num_pages; i++) {
 712                 /* Each entry needs to be in big endian format. */
 713                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 714                 page_table++;
 715                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 716                 page_table++;
 717         }
 718 }
 719
 720 static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
 721 {
 722         int i;
 723         __le32 *page_table = (__le32 *) dma->pgtbl;
 724
 725         for (i = 0; i < dma->num_pages; i++) {
 726                 /* Each entry needs to be in little endian format. */
 727                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 728                 page_table++;
 729                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 730                 page_table++;
 731         }
 732 }
 733
 734 static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
 735                           int pages, int use_pg_tbl)
 736 {
 737         int i, size;
 738         struct cnic_local *cp = dev->cnic_priv;
 739
 740         size = pages * (sizeof(void *) + sizeof(dma_addr_t));
 741         dma->pg_arr = kzalloc(size, GFP_ATOMIC);
 742         if (dma->pg_arr == NULL)
 743                 return -ENOMEM;
 744
 745         dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
 746         dma->num_pages = pages;
 747
 748         for (i = 0; i < pages; i++) {
 749                 dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
 750                                                     BCM_PAGE_SIZE,
 751                                                     &dma->pg_map_arr[i],
 752                                                     GFP_ATOMIC);
 753                 if (dma->pg_arr[i] == NULL)
 754                         goto error;
 755         }
 756         if (!use_pg_tbl)
 757                 return 0;
 758
 759         dma->pgtbl_size = ((pages * 8) + BCM_PAGE_SIZE - 1) &
 760                           ~(BCM_PAGE_SIZE - 1);
 761         dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 762                                         &dma->pgtbl_map, GFP_ATOMIC);
 763         if (dma->pgtbl == NULL)
 764                 goto error;
 765
 766         cp->setup_pgtbl(dev, dma);
 767
 768         return 0;
 769
 770 error:
 771         cnic_free_dma(dev, dma);
 772         return -ENOMEM;
 773 }
 774
 775 static void cnic_free_context(struct cnic_dev *dev)
 776 {
 777         struct cnic_local *cp = dev->cnic_priv;
 778         int i;
 779
 780         for (i = 0; i < cp->ctx_blks; i++) {
 781                 if (cp->ctx_arr[i].ctx) {
 782                         dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
 783                                           cp->ctx_arr[i].ctx,
 784                                           cp->ctx_arr[i].mapping);
 785                         cp->ctx_arr[i].ctx = NULL;
 786                 }
 787         }
 788 }
 789
 790 static void __cnic_free_uio(struct cnic_uio_dev *udev)
 791 {
 792         uio_unregister_device(&udev->cnic_uinfo);
 793
 794         if (udev->l2_buf) {
 795                 dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 796                                   udev->l2_buf, udev->l2_buf_map);
 797                 udev->l2_buf = NULL;
 798         }
 799
 800         if (udev->l2_ring) {
 801                 dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 802                                   udev->l2_ring, udev->l2_ring_map);
 803                 udev->l2_ring = NULL;
 804         }
 805
 806         pci_dev_put(udev->pdev);
 807         kfree(udev);
 808 }
 809
 810 static void cnic_free_uio(struct cnic_uio_dev *udev)
 811 {
 812         if (!udev)
 813                 return;
 814
 815         write_lock(&cnic_dev_lock);
 816         list_del_init(&udev->list);
 817         write_unlock(&cnic_dev_lock);
 818         __cnic_free_uio(udev);
 819 }
 820
 821 static void cnic_free_resc(struct cnic_dev *dev)
 822 {
 823         struct cnic_local *cp = dev->cnic_priv;
 824         struct cnic_uio_dev *udev = cp->udev;
 825
 826         if (udev) {
 827                 udev->dev = NULL;
 828                 cp->udev = NULL;
 829         }
 830
 831         cnic_free_context(dev);
 832         kfree(cp->ctx_arr);
 833         cp->ctx_arr = NULL;
 834         cp->ctx_blks = 0;
 835
 836         cnic_free_dma(dev, &cp->gbl_buf_info);
 837         cnic_free_dma(dev, &cp->conn_buf_info);
 838         cnic_free_dma(dev, &cp->kwq_info);
 839         cnic_free_dma(dev, &cp->kwq_16_data_info);
 840         cnic_free_dma(dev, &cp->kcq2.dma);
 841         cnic_free_dma(dev, &cp->kcq1.dma);
 842         kfree(cp->iscsi_tbl);
 843         cp->iscsi_tbl = NULL;
 844         kfree(cp->ctx_tbl);
 845         cp->ctx_tbl = NULL;
 846
 847         cnic_free_id_tbl(&cp->fcoe_cid_tbl);
 848         cnic_free_id_tbl(&cp->cid_tbl);
 849 }
 850
 851 static int cnic_alloc_context(struct cnic_dev *dev)
 852 {
 853         struct cnic_local *cp = dev->cnic_priv;
 854
 855         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
 856                 int i, k, arr_size;
 857
 858                 cp->ctx_blk_size = BCM_PAGE_SIZE;
 859                 cp->cids_per_blk = BCM_PAGE_SIZE / 128;
 860                 arr_size = BNX2_MAX_CID / cp->cids_per_blk *
 861                            sizeof(struct cnic_ctx);
 862                 cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
 863                 if (cp->ctx_arr == NULL)
 864                         return -ENOMEM;
 865
 866                 k = 0;
 867                 for (i = 0; i < 2; i++) {
 868                         u32 j, reg, off, lo, hi;
 869
 870                         if (i == 0)
 871                                 off = BNX2_PG_CTX_MAP;
 872                         else
 873                                 off = BNX2_ISCSI_CTX_MAP;
 874
 875                         reg = cnic_reg_rd_ind(dev, off);
 876                         lo = reg >> 16;
 877                         hi = reg & 0xffff;
 878                         for (j = lo; j < hi; j += cp->cids_per_blk, k++)
 879                                 cp->ctx_arr[k].cid = j;
 880                 }
 881
 882                 cp->ctx_blks = k;
 883                 if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
 884                         cp->ctx_blks = 0;
 885                         return -ENOMEM;
 886                 }
 887
 888                 for (i = 0; i < cp->ctx_blks; i++) {
 889                         cp->ctx_arr[i].ctx =
 890                                 dma_alloc_coherent(&dev->pcidev->dev,
 891                                                    BCM_PAGE_SIZE,
 892                                                    &cp->ctx_arr[i].mapping,
 893                                                    GFP_KERNEL);
 894                         if (cp->ctx_arr[i].ctx == NULL)
 895                                 return -ENOMEM;
 896                 }
 897         }
 898         return 0;
 899 }
 900
 901 static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info)
 902 {
 903         int err, i, is_bnx2 = 0;
 904         struct kcqe **kcq;
 905
 906         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags))
 907                 is_bnx2 = 1;
 908
 909         err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, is_bnx2);
 910         if (err)
 911                 return err;
 912
 913         kcq = (struct kcqe **) info->dma.pg_arr;
 914         info->kcq = kcq;
 915
 916         if (is_bnx2)
 917                 return 0;
 918
 919         for (i = 0; i < KCQ_PAGE_CNT; i++) {
 920                 struct bnx2x_bd_chain_next *next =
 921                         (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
 922                 int j = i + 1;
 923
 924                 if (j >= KCQ_PAGE_CNT)
 925                         j = 0;
 926                 next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
 927                 next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
 928         }
 929         return 0;
 930 }
 931
 932 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 933 {
 934         struct cnic_local *cp = dev->cnic_priv;
 935         struct cnic_uio_dev *udev;
 936
 937         read_lock(&cnic_dev_lock);
 938         list_for_each_entry(udev, &cnic_udev_list, list) {
 939                 if (udev->pdev == dev->pcidev) {
 940                         udev->dev = dev;
 941                         cp->udev = udev;
 942                         read_unlock(&cnic_dev_lock);
 943                         return 0;
 944                 }
 945         }
 946         read_unlock(&cnic_dev_lock);
 947
 948         udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
 949         if (!udev)
 950                 return -ENOMEM;
 951
 952         udev->uio_dev = -1;
 953
 954         udev->dev = dev;
 955         udev->pdev = dev->pcidev;
 956         udev->l2_ring_size = pages * BCM_PAGE_SIZE;
 957         udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
 958                                            &udev->l2_ring_map,
 959                                            GFP_KERNEL | __GFP_COMP);
 960         if (!udev->l2_ring)
 961                 goto err_udev;
 962
 963         udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
 964         udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
 965         udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
 966                                           &udev->l2_buf_map,
 967                                           GFP_KERNEL | __GFP_COMP);
 968         if (!udev->l2_buf)
 969                 goto err_dma;
 970
 971         write_lock(&cnic_dev_lock);
 972         list_add(&udev->list, &cnic_udev_list);
 973         write_unlock(&cnic_dev_lock);
 974
 975         pci_dev_get(udev->pdev);
 976
 977         cp->udev = udev;
 978
 979         return 0;
 980  err_dma:
 981         dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 982                           udev->l2_ring, udev->l2_ring_map);
 983  err_udev:
 984         kfree(udev);
 985         return -ENOMEM;
 986 }
 987
 988 static int cnic_init_uio(struct cnic_dev *dev)
 989 {
 990         struct cnic_local *cp = dev->cnic_priv;
 991         struct cnic_uio_dev *udev = cp->udev;
 992         struct uio_info *uinfo;
 993         int ret = 0;
 994
 995         if (!udev)
 996                 return -ENOMEM;
 997
 998         uinfo = &udev->cnic_uinfo;
 999
1000         uinfo->mem[0].addr = dev->netdev->base_addr;
1001         uinfo->mem[0].internal_addr = dev->regview;
1002         uinfo->mem[0].size = dev->netdev->mem_end - dev->netdev->mem_start;
1003         uinfo->mem[0].memtype = UIO_MEM_PHYS;
1004
1005         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
1006                 uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
1007                                         PAGE_MASK;
1008                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
1009                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
1010                 else
1011                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
1012
1013                 uinfo->name = "bnx2_cnic";
1014         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1015                 uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
1016                         PAGE_MASK;
1017                 uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk);
1018
1019                 uinfo->name = "bnx2x_cnic";
1020         }
1021
1022         uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
1023
1024         uinfo->mem[2].addr = (unsigned long) udev->l2_ring;
1025         uinfo->mem[2].size = udev->l2_ring_size;
1026         uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
1027
1028         uinfo->mem[3].addr = (unsigned long) udev->l2_buf;
1029         uinfo->mem[3].size = udev->l2_buf_size;
1030         uinfo->mem[3].memtype = UIO_MEM_LOGICAL;
1031
1032         uinfo->version = CNIC_MODULE_VERSION;
1033         uinfo->irq = UIO_IRQ_CUSTOM;
1034
1035         uinfo->open = cnic_uio_open;
1036         uinfo->release = cnic_uio_close;
1037
1038         if (udev->uio_dev == -1) {
1039                 if (!uinfo->priv) {
1040                         uinfo->priv = udev;
1041
1042                         ret = uio_register_device(&udev->pdev->dev, uinfo);
1043                 }
1044         } else {
1045                 cnic_init_rings(dev);
1046         }
1047
1048         return ret;
1049 }
1050
1051 static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
1052 {
1053         struct cnic_local *cp = dev->cnic_priv;
1054         int ret;
1055
1056         ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
1057         if (ret)
1058                 goto error;
1059         cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
1060
1061         ret = cnic_alloc_kcq(dev, &cp->kcq1);
1062         if (ret)
1063                 goto error;
1064
1065         ret = cnic_alloc_context(dev);
1066         if (ret)
1067                 goto error;
1068
1069         ret = cnic_alloc_uio_rings(dev, 2);
1070         if (ret)
1071                 goto error;
1072
1073         ret = cnic_init_uio(dev);
1074         if (ret)
1075                 goto error;
1076
1077         return 0;
1078
1079 error:
1080         cnic_free_resc(dev);
1081         return ret;
1082 }
1083
1084 static int cnic_alloc_bnx2x_context(struct cnic_dev *dev)
1085 {
1086         struct cnic_local *cp = dev->cnic_priv;
1087         int ctx_blk_size = cp->ethdev->ctx_blk_size;
1088         int total_mem, blks, i;
1089
1090         total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
1091         blks = total_mem / ctx_blk_size;
1092         if (total_mem % ctx_blk_size)
1093                 blks++;
1094
1095         if (blks > cp->ethdev->ctx_tbl_len)
1096                 return -ENOMEM;
1097
1098         cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL);
1099         if (cp->ctx_arr == NULL)
1100                 return -ENOMEM;
1101
1102         cp->ctx_blks = blks;
1103         cp->ctx_blk_size = ctx_blk_size;
1104         if (!BNX2X_CHIP_IS_57710(cp->chip_id))
1105                 cp->ctx_align = 0;
1106         else
1107                 cp->ctx_align = ctx_blk_size;
1108
1109         cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
1110
1111         for (i = 0; i < blks; i++) {
1112                 cp->ctx_arr[i].ctx =
1113                         dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
1114                                            &cp->ctx_arr[i].mapping,
1115                                            GFP_KERNEL);
1116                 if (cp->ctx_arr[i].ctx == NULL)
1117                         return -ENOMEM;
1118
1119                 if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
1120                         if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
1121                                 cnic_free_context(dev);
1122                                 cp->ctx_blk_size += cp->ctx_align;
1123                                 i = -1;
1124                                 continue;
1125                         }
1126                 }
1127         }
1128         return 0;
1129 }
1130
1131 static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
1132 {
1133         struct cnic_local *cp = dev->cnic_priv;
1134         struct cnic_eth_dev *ethdev = cp->ethdev;
1135         u32 start_cid = ethdev->starting_cid;
1136         int i, j, n, ret, pages;
1137         struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
1138
1139         cp->iro_arr = ethdev->iro_arr;
1140
1141         cp->max_cid_space = MAX_ISCSI_TBL_SZ + BNX2X_FCOE_NUM_CONNECTIONS;
1142         cp->iscsi_start_cid = start_cid;
1143         cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ;
1144
1145         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
1146                 cp->max_cid_space += BNX2X_FCOE_NUM_CONNECTIONS;
1147                 cp->fcoe_init_cid = ethdev->fcoe_init_cid;
1148                 if (!cp->fcoe_init_cid)
1149                         cp->fcoe_init_cid = 0x10;
1150         }
1151
1152         if (start_cid < BNX2X_ISCSI_START_CID) {
1153                 u32 delta = BNX2X_ISCSI_START_CID - start_cid;
1154
1155                 cp->iscsi_start_cid = BNX2X_ISCSI_START_CID;
1156                 cp->fcoe_start_cid += delta;
1157                 cp->max_cid_space += delta;
1158         }
1159
1160         cp->iscsi_tbl = kzalloc(sizeof(struct cnic_iscsi) * MAX_ISCSI_TBL_SZ,
1161                                 GFP_KERNEL);
1162         if (!cp->iscsi_tbl)
1163                 goto error;
1164
1165         cp->ctx_tbl = kzalloc(sizeof(struct cnic_context) *
1166                                 cp->max_cid_space, GFP_KERNEL);
1167         if (!cp->ctx_tbl)
1168                 goto error;
1169
1170         for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) {
1171                 cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i];
1172                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI;
1173         }
1174
1175         for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++)
1176                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE;
1177
1178         pages = PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
1179                 PAGE_SIZE;
1180
1181         ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
1182         if (ret)
1183                 return -ENOMEM;
1184
1185         n = PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
1186         for (i = 0, j = 0; i < cp->max_cid_space; i++) {
1187                 long off = CNIC_KWQ16_DATA_SIZE * (i % n);
1188
1189                 cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off;
1190                 cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] +
1191                                                    off;
1192
1193                 if ((i % n) == (n - 1))
1194                         j++;
1195         }
1196
1197         ret = cnic_alloc_kcq(dev, &cp->kcq1);
1198         if (ret)
1199                 goto error;
1200
1201         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
1202                 ret = cnic_alloc_kcq(dev, &cp->kcq2);
1203                 if (ret)
1204                         goto error;
1205         }
1206
1207         pages = PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS *
1208                            BNX2X_ISCSI_CONN_BUF_SIZE) / PAGE_SIZE;
1209         ret = cnic_alloc_dma(dev, &cp->conn_buf_info, pages, 1);
1210         if (ret)
1211                 goto error;
1212
1213         pages = PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / PAGE_SIZE;
1214         ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0);
1215         if (ret)
1216                 goto error;
1217
1218         ret = cnic_alloc_bnx2x_context(dev);
1219         if (ret)
1220                 goto error;
1221
1222         cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
1223
1224         cp->l2_rx_ring_size = 15;
1225
1226         ret = cnic_alloc_uio_rings(dev, 4);
1227         if (ret)
1228                 goto error;
1229
1230         ret = cnic_init_uio(dev);
1231         if (ret)
1232                 goto error;
1233
1234         return 0;
1235
1236 error:
1237         cnic_free_resc(dev);
1238         return -ENOMEM;
1239 }
1240
1241 static inline u32 cnic_kwq_avail(struct cnic_local *cp)
1242 {
1243         return cp->max_kwq_idx -
1244                 ((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx);
1245 }
1246
1247 static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
1248                                   u32 num_wqes)
1249 {
1250         struct cnic_local *cp = dev->cnic_priv;
1251         struct kwqe *prod_qe;
1252         u16 prod, sw_prod, i;
1253
1254         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
1255                 return -EAGAIN;         /* bnx2 is down */
1256
1257         spin_lock_bh(&cp->cnic_ulp_lock);
1258         if (num_wqes > cnic_kwq_avail(cp) &&
1259             !test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) {
1260                 spin_unlock_bh(&cp->cnic_ulp_lock);
1261                 return -EAGAIN;
1262         }
1263
1264         clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
1265
1266         prod = cp->kwq_prod_idx;
1267         sw_prod = prod & MAX_KWQ_IDX;
1268         for (i = 0; i < num_wqes; i++) {
1269                 prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)];
1270                 memcpy(prod_qe, wqes[i], sizeof(struct kwqe));
1271                 prod++;
1272                 sw_prod = prod & MAX_KWQ_IDX;
1273         }
1274         cp->kwq_prod_idx = prod;
1275
1276         CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx);
1277
1278         spin_unlock_bh(&cp->cnic_ulp_lock);
1279         return 0;
1280 }
1281
1282 static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid,
1283                                    union l5cm_specific_data *l5_data)
1284 {
1285         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1286         dma_addr_t map;
1287
1288         map = ctx->kwqe_data_mapping;
1289         l5_data->phy_address.lo = (u64) map & 0xffffffff;
1290         l5_data->phy_address.hi = (u64) map >> 32;
1291         return ctx->kwqe_data;
1292 }
1293
1294 static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid,
1295                                 u32 type, union l5cm_specific_data *l5_data)
1296 {
1297         struct cnic_local *cp = dev->cnic_priv;
1298         struct l5cm_spe kwqe;
1299         struct kwqe_16 *kwq[1];
1300         u16 type_16;
1301         int ret;
1302
1303         kwqe.hdr.conn_and_cmd_data =
1304                 cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
1305                              BNX2X_HW_CID(cp, cid)));
1306
1307         type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
1308         type_16 |= (cp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
1309                    SPE_HDR_FUNCTION_ID;
1310
1311         kwqe.hdr.type = cpu_to_le16(type_16);
1312         kwqe.hdr.reserved1 = 0;
1313         kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
1314         kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
1315
1316         kwq[0] = (struct kwqe_16 *) &kwqe;
1317
1318         spin_lock_bh(&cp->cnic_ulp_lock);
1319         ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
1320         spin_unlock_bh(&cp->cnic_ulp_lock);
1321
1322         if (ret == 1)
1323                 return 0;
1324
1325         return -EBUSY;
1326 }
1327
1328 static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
1329                                    struct kcqe *cqes[], u32 num_cqes)
1330 {
1331         struct cnic_local *cp = dev->cnic_priv;
1332         struct cnic_ulp_ops *ulp_ops;
1333
1334         rcu_read_lock();
1335         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
1336         if (likely(ulp_ops)) {
1337                 ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
1338                                           cqes, num_cqes);
1339         }
1340         rcu_read_unlock();
1341 }
1342
1343 static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
1344 {
1345         struct cnic_local *cp = dev->cnic_priv;
1346         struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
1347         int hq_bds, pages;
1348         u32 pfid = cp->pfid;
1349
1350         cp->num_iscsi_tasks = req1->num_tasks_per_conn;
1351         cp->num_ccells = req1->num_ccells_per_conn;
1352         cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
1353                               cp->num_iscsi_tasks;
1354         cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
1355                         BNX2X_ISCSI_R2TQE_SIZE;
1356         cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
1357         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1358         hq_bds = pages * (PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
1359         cp->num_cqs = req1->num_cqs;
1360
1361         if (!dev->max_iscsi_conn)
1362                 return 0;
1363
1364         /* init Tstorm RAM */
1365         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1366                   req1->rq_num_wqes);
1367         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1368                   PAGE_SIZE);
1369         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1370                  TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1371         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1372                   TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1373                   req1->num_tasks_per_conn);
1374
1375         /* init Ustorm RAM */
1376         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1377                   USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
1378                   req1->rq_buffer_size);
1379         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1380                   PAGE_SIZE);
1381         CNIC_WR8(dev, BAR_USTRORM_INTMEM +
1382                  USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1383         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1384                   USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1385                   req1->num_tasks_per_conn);
1386         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1387                   req1->rq_num_wqes);
1388         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1389                   req1->cq_num_wqes);
1390         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1391                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1392
1393         /* init Xstorm RAM */
1394         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1395                   PAGE_SIZE);
1396         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1397                  XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1398         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
1399                   XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1400                   req1->num_tasks_per_conn);
1401         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1402                   hq_bds);
1403         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
1404                   req1->num_tasks_per_conn);
1405         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1406                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1407
1408         /* init Cstorm RAM */
1409         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1410                   PAGE_SIZE);
1411         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
1412                  CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1413         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1414                   CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1415                   req1->num_tasks_per_conn);
1416         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1417                   req1->cq_num_wqes);
1418         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1419                   hq_bds);
1420
1421         return 0;
1422 }
1423
1424 static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
1425 {
1426         struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
1427         struct cnic_local *cp = dev->cnic_priv;
1428         u32 pfid = cp->pfid;
1429         struct iscsi_kcqe kcqe;
1430         struct kcqe *cqes[1];
1431
1432         memset(&kcqe, 0, sizeof(kcqe));
1433         if (!dev->max_iscsi_conn) {
1434                 kcqe.completion_status =
1435                         ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
1436                 goto done;
1437         }
1438
1439         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1440                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1441         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1442                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1443                 req2->error_bit_map[1]);
1444
1445         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1446                   USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1447         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1448                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1449         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1450                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1451                 req2->error_bit_map[1]);
1452
1453         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1454                   CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1455
1456         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1457
1458 done:
1459         kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
1460         cqes[0] = (struct kcqe *) &kcqe;
1461         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1462
1463         return 0;
1464 }
1465
1466 static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1467 {
1468         struct cnic_local *cp = dev->cnic_priv;
1469         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1470
1471         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
1472                 struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1473
1474                 cnic_free_dma(dev, &iscsi->hq_info);
1475                 cnic_free_dma(dev, &iscsi->r2tq_info);
1476                 cnic_free_dma(dev, &iscsi->task_array_info);
1477                 cnic_free_id(&cp->cid_tbl, ctx->cid);
1478         } else {
1479                 cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid);
1480         }
1481
1482         ctx->cid = 0;
1483 }
1484
1485 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1486 {
1487         u32 cid;
1488         int ret, pages;
1489         struct cnic_local *cp = dev->cnic_priv;
1490         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1491         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1492
1493         if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
1494                 cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
1495                 if (cid == -1) {
1496                         ret = -ENOMEM;
1497                         goto error;
1498                 }
1499                 ctx->cid = cid;
1500                 return 0;
1501         }
1502
1503         cid = cnic_alloc_new_id(&cp->cid_tbl);
1504         if (cid == -1) {
1505                 ret = -ENOMEM;
1506                 goto error;
1507         }
1508
1509         ctx->cid = cid;
1510         pages = PAGE_ALIGN(cp->task_array_size) / PAGE_SIZE;
1511
1512         ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
1513         if (ret)
1514                 goto error;
1515
1516         pages = PAGE_ALIGN(cp->r2tq_size) / PAGE_SIZE;
1517         ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
1518         if (ret)
1519                 goto error;
1520
1521         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1522         ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
1523         if (ret)
1524                 goto error;
1525
1526         return 0;
1527
1528 error:
1529         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1530         return ret;
1531 }
1532
1533 static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
1534                                 struct regpair *ctx_addr)
1535 {
1536         struct cnic_local *cp = dev->cnic_priv;
1537         struct cnic_eth_dev *ethdev = cp->ethdev;
1538         int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
1539         int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
1540         unsigned long align_off = 0;
1541         dma_addr_t ctx_map;
1542         void *ctx;
1543
1544         if (cp->ctx_align) {
1545                 unsigned long mask = cp->ctx_align - 1;
1546
1547                 if (cp->ctx_arr[blk].mapping & mask)
1548                         align_off = cp->ctx_align -
1549                                     (cp->ctx_arr[blk].mapping & mask);
1550         }
1551         ctx_map = cp->ctx_arr[blk].mapping + align_off +
1552                 (off * BNX2X_CONTEXT_MEM_SIZE);
1553         ctx = cp->ctx_arr[blk].ctx + align_off +
1554               (off * BNX2X_CONTEXT_MEM_SIZE);
1555         if (init)
1556                 memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
1557
1558         ctx_addr->lo = ctx_map & 0xffffffff;
1559         ctx_addr->hi = (u64) ctx_map >> 32;
1560         return ctx;
1561 }
1562
1563 static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
1564                                 u32 num)
1565 {
1566         struct cnic_local *cp = dev->cnic_priv;
1567         struct iscsi_kwqe_conn_offload1 *req1 =
1568                         (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1569         struct iscsi_kwqe_conn_offload2 *req2 =
1570                         (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1571         struct iscsi_kwqe_conn_offload3 *req3;
1572         struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
1573         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1574         u32 cid = ctx->cid;
1575         u32 hw_cid = BNX2X_HW_CID(cp, cid);
1576         struct iscsi_context *ictx;
1577         struct regpair context_addr;
1578         int i, j, n = 2, n_max;
1579
1580         ctx->ctx_flags = 0;
1581         if (!req2->num_additional_wqes)
1582                 return -EINVAL;
1583
1584         n_max = req2->num_additional_wqes + 2;
1585
1586         ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
1587         if (ictx == NULL)
1588                 return -ENOMEM;
1589
1590         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1591
1592         ictx->xstorm_ag_context.hq_prod = 1;
1593
1594         ictx->xstorm_st_context.iscsi.first_burst_length =
1595                 ISCSI_DEF_FIRST_BURST_LEN;
1596         ictx->xstorm_st_context.iscsi.max_send_pdu_length =
1597                 ISCSI_DEF_MAX_RECV_SEG_LEN;
1598         ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
1599                 req1->sq_page_table_addr_lo;
1600         ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
1601                 req1->sq_page_table_addr_hi;
1602         ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
1603         ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
1604         ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
1605                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1606         ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
1607                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1608         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
1609                 iscsi->hq_info.pgtbl[0];
1610         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
1611                 iscsi->hq_info.pgtbl[1];
1612         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
1613                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1614         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
1615                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1616         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
1617                 iscsi->r2tq_info.pgtbl[0];
1618         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
1619                 iscsi->r2tq_info.pgtbl[1];
1620         ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
1621                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1622         ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
1623                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1624         ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
1625                 BNX2X_ISCSI_PBL_NOT_CACHED;
1626         ictx->xstorm_st_context.iscsi.flags.flags |=
1627                 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
1628         ictx->xstorm_st_context.iscsi.flags.flags |=
1629                 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
1630
1631         ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
1632         /* TSTORM requires the base address of RQ DB & not PTE */
1633         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
1634                 req2->rq_page_table_addr_lo & PAGE_MASK;
1635         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
1636                 req2->rq_page_table_addr_hi;
1637         ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
1638         ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
1639         ictx->tstorm_st_context.tcp.flags2 |=
1640                 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
1641         ictx->tstorm_st_context.tcp.ooo_support_mode =
1642                 TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
1643
1644         ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
1645
1646         ictx->ustorm_st_context.ring.rq.pbl_base.lo =
1647                 req2->rq_page_table_addr_lo;
1648         ictx->ustorm_st_context.ring.rq.pbl_base.hi =
1649                 req2->rq_page_table_addr_hi;
1650         ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
1651         ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
1652         ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
1653                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1654         ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
1655                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1656         ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
1657                 iscsi->r2tq_info.pgtbl[0];
1658         ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
1659                 iscsi->r2tq_info.pgtbl[1];
1660         ictx->ustorm_st_context.ring.cq_pbl_base.lo =
1661                 req1->cq_page_table_addr_lo;
1662         ictx->ustorm_st_context.ring.cq_pbl_base.hi =
1663                 req1->cq_page_table_addr_hi;
1664         ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
1665         ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
1666         ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
1667         ictx->ustorm_st_context.task_pbe_cache_index =
1668                 BNX2X_ISCSI_PBL_NOT_CACHED;
1669         ictx->ustorm_st_context.task_pdu_cache_index =
1670                 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
1671
1672         for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
1673                 if (j == 3) {
1674                         if (n >= n_max)
1675                                 break;
1676                         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1677                         j = 0;
1678                 }
1679                 ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
1680                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
1681                         req3->qp_first_pte[j].hi;
1682                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
1683                         req3->qp_first_pte[j].lo;
1684         }
1685
1686         ictx->ustorm_st_context.task_pbl_base.lo =
1687                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1688         ictx->ustorm_st_context.task_pbl_base.hi =
1689                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1690         ictx->ustorm_st_context.tce_phy_addr.lo =
1691                 iscsi->task_array_info.pgtbl[0];
1692         ictx->ustorm_st_context.tce_phy_addr.hi =
1693                 iscsi->task_array_info.pgtbl[1];
1694         ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1695         ictx->ustorm_st_context.num_cqs = cp->num_cqs;
1696         ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
1697         ictx->ustorm_st_context.negotiated_rx_and_flags |=
1698                 ISCSI_DEF_MAX_BURST_LEN;
1699         ictx->ustorm_st_context.negotiated_rx |=
1700                 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
1701                 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
1702
1703         ictx->cstorm_st_context.hq_pbl_base.lo =
1704                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1705         ictx->cstorm_st_context.hq_pbl_base.hi =
1706                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1707         ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
1708         ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
1709         ictx->cstorm_st_context.task_pbl_base.lo =
1710                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1711         ictx->cstorm_st_context.task_pbl_base.hi =
1712                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1713         /* CSTORM and USTORM initialization is different, CSTORM requires
1714          * CQ DB base & not PTE addr */
1715         ictx->cstorm_st_context.cq_db_base.lo =
1716                 req1->cq_page_table_addr_lo & PAGE_MASK;
1717         ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
1718         ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1719         ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
1720         for (i = 0; i < cp->num_cqs; i++) {
1721                 ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
1722                         ISCSI_INITIAL_SN;
1723                 ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
1724                         ISCSI_INITIAL_SN;
1725         }
1726
1727         ictx->xstorm_ag_context.cdu_reserved =
1728                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
1729                                        ISCSI_CONNECTION_TYPE);
1730         ictx->ustorm_ag_context.cdu_usage =
1731                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
1732                                        ISCSI_CONNECTION_TYPE);
1733         return 0;
1734
1735 }
1736
1737 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
1738                                    u32 num, int *work)
1739 {
1740         struct iscsi_kwqe_conn_offload1 *req1;
1741         struct iscsi_kwqe_conn_offload2 *req2;
1742         struct cnic_local *cp = dev->cnic_priv;
1743         struct cnic_context *ctx;
1744         struct iscsi_kcqe kcqe;
1745         struct kcqe *cqes[1];
1746         u32 l5_cid;
1747         int ret = 0;
1748
1749         if (num < 2) {
1750                 *work = num;
1751                 return -EINVAL;
1752         }
1753
1754         req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1755         req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1756         if ((num - 2) < req2->num_additional_wqes) {
1757                 *work = num;
1758                 return -EINVAL;
1759         }
1760         *work = 2 + req2->num_additional_wqes;
1761
1762         l5_cid = req1->iscsi_conn_id;
1763         if (l5_cid >= MAX_ISCSI_TBL_SZ)
1764                 return -EINVAL;
1765
1766         memset(&kcqe, 0, sizeof(kcqe));
1767         kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
1768         kcqe.iscsi_conn_id = l5_cid;
1769         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
1770
1771         ctx = &cp->ctx_tbl[l5_cid];
1772         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
1773                 kcqe.completion_status =
1774                         ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
1775                 goto done;
1776         }
1777
1778         if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
1779                 atomic_dec(&cp->iscsi_conn);
1780                 goto done;
1781         }
1782         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
1783         if (ret) {
1784                 atomic_dec(&cp->iscsi_conn);
1785                 ret = 0;
1786                 goto done;
1787         }
1788         ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
1789         if (ret < 0) {
1790                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
1791                 atomic_dec(&cp->iscsi_conn);
1792                 goto done;
1793         }
1794
1795         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1796         kcqe.iscsi_conn_context_id = BNX2X_HW_CID(cp, cp->ctx_tbl[l5_cid].cid);
1797
1798 done:
1799         cqes[0] = (struct kcqe *) &kcqe;
1800         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1801         return ret;
1802 }
1803
1804
1805 static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
1806 {
1807         struct cnic_local *cp = dev->cnic_priv;
1808         struct iscsi_kwqe_conn_update *req =
1809                 (struct iscsi_kwqe_conn_update *) kwqe;
1810         void *data;
1811         union l5cm_specific_data l5_data;
1812         u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
1813         int ret;
1814
1815         if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
1816                 return -EINVAL;
1817
1818         data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
1819         if (!data)
1820                 return -ENOMEM;
1821
1822         memcpy(data, kwqe, sizeof(struct kwqe));
1823
1824         ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
1825                         req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
1826         return ret;
1827 }
1828
1829 static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
1830 {
1831         struct cnic_local *cp = dev->cnic_priv;
1832         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1833         union l5cm_specific_data l5_data;
1834         int ret;
1835         u32 hw_cid;
1836
1837         init_waitqueue_head(&ctx->waitq);
1838         ctx->wait_cond = 0;
1839         memset(&l5_data, 0, sizeof(l5_data));
1840         hw_cid = BNX2X_HW_CID(cp, ctx->cid);
1841
1842         ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
1843                                   hw_cid, NONE_CONNECTION_TYPE, &l5_data);
1844
1845         if (ret == 0)
1846                 wait_event(ctx->waitq, ctx->wait_cond);
1847
1848         return ret;
1849 }
1850
1851 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
1852 {
1853         struct cnic_local *cp = dev->cnic_priv;
1854         struct iscsi_kwqe_conn_destroy *req =
1855                 (struct iscsi_kwqe_conn_destroy *) kwqe;
1856         u32 l5_cid = req->reserved0;
1857         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1858         int ret = 0;
1859         struct iscsi_kcqe kcqe;
1860         struct kcqe *cqes[1];
1861
1862         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
1863                 goto skip_cfc_delete;
1864
1865         if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
1866                 unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
1867
1868                 if (delta > (2 * HZ))
1869                         delta = 0;
1870
1871                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
1872                 queue_delayed_work(cnic_wq, &cp->delete_task, delta);
1873                 goto destroy_reply;
1874         }
1875
1876         ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
1877
1878 skip_cfc_delete:
1879         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1880
1881         atomic_dec(&cp->iscsi_conn);
1882         clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
1883
1884 destroy_reply:
1885         memset(&kcqe, 0, sizeof(kcqe));
1886         kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
1887         kcqe.iscsi_conn_id = l5_cid;
1888         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1889         kcqe.iscsi_conn_context_id = req->context_id;
1890
1891         cqes[0] = (struct kcqe *) &kcqe;
1892         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1893
1894         return ret;
1895 }
1896
1897 static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
1898                                       struct l4_kwq_connect_req1 *kwqe1,
1899                                       struct l4_kwq_connect_req3 *kwqe3,
1900                                       struct l5cm_active_conn_buffer *conn_buf)
1901 {
1902         struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
1903         struct l5cm_xstorm_conn_buffer *xstorm_buf =
1904                 &conn_buf->xstorm_conn_buffer;
1905         struct l5cm_tstorm_conn_buffer *tstorm_buf =
1906                 &conn_buf->tstorm_conn_buffer;
1907         struct regpair context_addr;
1908         u32 cid = BNX2X_SW_CID(kwqe1->cid);
1909         struct in6_addr src_ip, dst_ip;
1910         int i;
1911         u32 *addrp;
1912
1913         addrp = (u32 *) &conn_addr->local_ip_addr;
1914         for (i = 0; i < 4; i++, addrp++)
1915                 src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1916
1917         addrp = (u32 *) &conn_addr->remote_ip_addr;
1918         for (i = 0; i < 4; i++, addrp++)
1919                 dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1920
1921         cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
1922
1923         xstorm_buf->context_addr.hi = context_addr.hi;
1924         xstorm_buf->context_addr.lo = context_addr.lo;
1925         xstorm_buf->mss = 0xffff;
1926         xstorm_buf->rcv_buf = kwqe3->rcv_buf;
1927         if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
1928                 xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
1929         xstorm_buf->pseudo_header_checksum =
1930                 swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
1931
1932         if (!(kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK))
1933                 tstorm_buf->params |=
1934                         L5CM_TSTORM_CONN_BUFFER_DELAYED_ACK_ENABLE;
1935         if (kwqe3->ka_timeout) {
1936                 tstorm_buf->ka_enable = 1;
1937                 tstorm_buf->ka_timeout = kwqe3->ka_timeout;
1938                 tstorm_buf->ka_interval = kwqe3->ka_interval;
1939                 tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
1940         }
1941         tstorm_buf->rcv_buf = kwqe3->rcv_buf;
1942         tstorm_buf->snd_buf = kwqe3->snd_buf;
1943         tstorm_buf->max_rt_time = 0xffffffff;
1944 }
1945
1946 static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
1947 {
1948         struct cnic_local *cp = dev->cnic_priv;
1949         u32 pfid = cp->pfid;
1950         u8 *mac = dev->mac_addr;
1951
1952         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1953                  XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
1954         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1955                  XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
1956         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1957                  XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
1958         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1959                  XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
1960         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1961                  XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
1962         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1963                  XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
1964
1965         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1966                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
1967         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1968                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
1969                  mac[4]);
1970         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1971                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
1972         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1973                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
1974                  mac[2]);
1975         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1976                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 2,
1977                  mac[1]);
1978         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1979                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 3,
1980                  mac[0]);
1981 }
1982
1983 static void cnic_bnx2x_set_tcp_timestamp(struct cnic_dev *dev, int tcp_ts)
1984 {
1985         struct cnic_local *cp = dev->cnic_priv;
1986         u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
1987         u16 tstorm_flags = 0;
1988
1989         if (tcp_ts) {
1990                 xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1991                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
1992         }
1993
1994         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1995                  XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), xstorm_flags);
1996
1997         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1998                   TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), tstorm_flags);
1999 }
2000
2001 static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
2002                               u32 num, int *work)
2003 {
2004         struct cnic_local *cp = dev->cnic_priv;
2005         struct l4_kwq_connect_req1 *kwqe1 =
2006                 (struct l4_kwq_connect_req1 *) wqes[0];
2007         struct l4_kwq_connect_req3 *kwqe3;
2008         struct l5cm_active_conn_buffer *conn_buf;
2009         struct l5cm_conn_addr_params *conn_addr;
2010         union l5cm_specific_data l5_data;
2011         u32 l5_cid = kwqe1->pg_cid;
2012         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
2013         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2014         int ret;
2015
2016         if (num < 2) {
2017                 *work = num;
2018                 return -EINVAL;
2019         }
2020
2021         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
2022                 *work = 3;
2023         else
2024                 *work = 2;
2025
2026         if (num < *work) {
2027                 *work = num;
2028                 return -EINVAL;
2029         }
2030
2031         if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
2032                 netdev_err(dev->netdev, "conn_buf size too big\n");
2033                 return -ENOMEM;
2034         }
2035         conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2036         if (!conn_buf)
2037                 return -ENOMEM;
2038
2039         memset(conn_buf, 0, sizeof(*conn_buf));
2040
2041         conn_addr = &conn_buf->conn_addr_buf;
2042         conn_addr->remote_addr_0 = csk->ha[0];
2043         conn_addr->remote_addr_1 = csk->ha[1];
2044         conn_addr->remote_addr_2 = csk->ha[2];
2045         conn_addr->remote_addr_3 = csk->ha[3];
2046         conn_addr->remote_addr_4 = csk->ha[4];
2047         conn_addr->remote_addr_5 = csk->ha[5];
2048
2049         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
2050                 struct l4_kwq_connect_req2 *kwqe2 =
2051                         (struct l4_kwq_connect_req2 *) wqes[1];
2052
2053                 conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
2054                 conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
2055                 conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
2056
2057                 conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
2058                 conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
2059                 conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
2060                 conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
2061         }
2062         kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
2063
2064         conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
2065         conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
2066         conn_addr->local_tcp_port = kwqe1->src_port;
2067         conn_addr->remote_tcp_port = kwqe1->dst_port;
2068
2069         conn_addr->pmtu = kwqe3->pmtu;
2070         cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
2071
2072         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
2073                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(cp->pfid), csk->vlan_id);
2074
2075         cnic_bnx2x_set_tcp_timestamp(dev,
2076                 kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_TIME_STAMP);
2077
2078         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
2079                         kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2080         if (!ret)
2081                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2082
2083         return ret;
2084 }
2085
2086 static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
2087 {
2088         struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
2089         union l5cm_specific_data l5_data;
2090         int ret;
2091
2092         memset(&l5_data, 0, sizeof(l5_data));
2093         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
2094                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2095         return ret;
2096 }
2097
2098 static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
2099 {
2100         struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
2101         union l5cm_specific_data l5_data;
2102         int ret;
2103
2104         memset(&l5_data, 0, sizeof(l5_data));
2105         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
2106                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2107         return ret;
2108 }
2109 static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2110 {
2111         struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
2112         struct l4_kcq kcqe;
2113         struct kcqe *cqes[1];
2114
2115         memset(&kcqe, 0, sizeof(kcqe));
2116         kcqe.pg_host_opaque = req->host_opaque;
2117         kcqe.pg_cid = req->host_opaque;
2118         kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
2119         cqes[0] = (struct kcqe *) &kcqe;
2120         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2121         return 0;
2122 }
2123
2124 static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2125 {
2126         struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
2127         struct l4_kcq kcqe;
2128         struct kcqe *cqes[1];
2129
2130         memset(&kcqe, 0, sizeof(kcqe));
2131         kcqe.pg_host_opaque = req->pg_host_opaque;
2132         kcqe.pg_cid = req->pg_cid;
2133         kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
2134         cqes[0] = (struct kcqe *) &kcqe;
2135         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2136         return 0;
2137 }
2138
2139 static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
2140 {
2141         struct fcoe_kwqe_stat *req;
2142         struct fcoe_stat_ramrod_params *fcoe_stat;
2143         union l5cm_specific_data l5_data;
2144         struct cnic_local *cp = dev->cnic_priv;
2145         int ret;
2146         u32 cid;
2147
2148         req = (struct fcoe_kwqe_stat *) kwqe;
2149         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2150
2151         fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2152         if (!fcoe_stat)
2153                 return -ENOMEM;
2154
2155         memset(fcoe_stat, 0, sizeof(*fcoe_stat));
2156         memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
2157
2158         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT, cid,
2159                                   FCOE_CONNECTION_TYPE, &l5_data);
2160         return ret;
2161 }
2162
2163 static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
2164                                  u32 num, int *work)
2165 {
2166         int ret;
2167         struct cnic_local *cp = dev->cnic_priv;
2168         u32 cid;
2169         struct fcoe_init_ramrod_params *fcoe_init;
2170         struct fcoe_kwqe_init1 *req1;
2171         struct fcoe_kwqe_init2 *req2;
2172         struct fcoe_kwqe_init3 *req3;
2173         union l5cm_specific_data l5_data;
2174
2175         if (num < 3) {
2176                 *work = num;
2177                 return -EINVAL;
2178         }
2179         req1 = (struct fcoe_kwqe_init1 *) wqes[0];
2180         req2 = (struct fcoe_kwqe_init2 *) wqes[1];
2181         req3 = (struct fcoe_kwqe_init3 *) wqes[2];
2182         if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
2183                 *work = 1;
2184                 return -EINVAL;
2185         }
2186         if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
2187                 *work = 2;
2188                 return -EINVAL;
2189         }
2190
2191         if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
2192                 netdev_err(dev->netdev, "fcoe_init size too big\n");
2193                 return -ENOMEM;
2194         }
2195         fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2196         if (!fcoe_init)
2197                 return -ENOMEM;
2198
2199         memset(fcoe_init, 0, sizeof(*fcoe_init));
2200         memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
2201         memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
2202         memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
2203         fcoe_init->eq_addr.lo = cp->kcq2.dma.pg_map_arr[0] & 0xffffffff;
2204         fcoe_init->eq_addr.hi = (u64) cp->kcq2.dma.pg_map_arr[0] >> 32;
2205         fcoe_init->eq_next_page_addr.lo =
2206                 cp->kcq2.dma.pg_map_arr[1] & 0xffffffff;
2207         fcoe_init->eq_next_page_addr.hi =
2208                 (u64) cp->kcq2.dma.pg_map_arr[1] >> 32;
2209
2210         fcoe_init->sb_num = cp->status_blk_num;
2211         fcoe_init->eq_prod = MAX_KCQ_IDX;
2212         fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
2213         cp->kcq2.sw_prod_idx = 0;
2214
2215         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2216         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT, cid,
2217                                   FCOE_CONNECTION_TYPE, &l5_data);
2218         *work = 3;
2219         return ret;
2220 }
2221
2222 static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
2223                                  u32 num, int *work)
2224 {
2225         int ret = 0;
2226         u32 cid = -1, l5_cid;
2227         struct cnic_local *cp = dev->cnic_priv;
2228         struct fcoe_kwqe_conn_offload1 *req1;
2229         struct fcoe_kwqe_conn_offload2 *req2;
2230         struct fcoe_kwqe_conn_offload3 *req3;
2231         struct fcoe_kwqe_conn_offload4 *req4;
2232         struct fcoe_conn_offload_ramrod_params *fcoe_offload;
2233         struct cnic_context *ctx;
2234         struct fcoe_context *fctx;
2235         struct regpair ctx_addr;
2236         union l5cm_specific_data l5_data;
2237         struct fcoe_kcqe kcqe;
2238         struct kcqe *cqes[1];
2239
2240         if (num < 4) {
2241                 *work = num;
2242                 return -EINVAL;
2243         }
2244         req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
2245         req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
2246         req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
2247         req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
2248
2249         *work = 4;
2250
2251         l5_cid = req1->fcoe_conn_id;
2252         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2253                 goto err_reply;
2254
2255         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2256
2257         ctx = &cp->ctx_tbl[l5_cid];
2258         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2259                 goto err_reply;
2260
2261         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
2262         if (ret) {
2263                 ret = 0;
2264                 goto err_reply;
2265         }
2266         cid = ctx->cid;
2267
2268         fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
2269         if (fctx) {
2270                 u32 hw_cid = BNX2X_HW_CID(cp, cid);
2271                 u32 val;
2272
2273                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
2274                                              FCOE_CONNECTION_TYPE);
2275                 fctx->xstorm_ag_context.cdu_reserved = val;
2276                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
2277                                              FCOE_CONNECTION_TYPE);
2278                 fctx->ustorm_ag_context.cdu_usage = val;
2279         }
2280         if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
2281                 netdev_err(dev->netdev, "fcoe_offload size too big\n");
2282                 goto err_reply;
2283         }
2284         fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2285         if (!fcoe_offload)
2286                 goto err_reply;
2287
2288         memset(fcoe_offload, 0, sizeof(*fcoe_offload));
2289         memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
2290         memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
2291         memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
2292         memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
2293
2294         cid = BNX2X_HW_CID(cp, cid);
2295         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
2296                                   FCOE_CONNECTION_TYPE, &l5_data);
2297         if (!ret)
2298                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2299
2300         return ret;
2301
2302 err_reply:
2303         if (cid != -1)
2304                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
2305
2306         memset(&kcqe, 0, sizeof(kcqe));
2307         kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
2308         kcqe.fcoe_conn_id = req1->fcoe_conn_id;
2309         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
2310
2311         cqes[0] = (struct kcqe *) &kcqe;
2312         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2313         return ret;
2314 }
2315
2316 static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
2317 {
2318         struct fcoe_kwqe_conn_enable_disable *req;
2319         struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
2320         union l5cm_specific_data l5_data;
2321         int ret;
2322         u32 cid, l5_cid;
2323         struct cnic_local *cp = dev->cnic_priv;
2324
2325         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2326         cid = req->context_id;
2327         l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
2328
2329         if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
2330                 netdev_err(dev->netdev, "fcoe_enable size too big\n");
2331                 return -ENOMEM;
2332         }
2333         fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2334         if (!fcoe_enable)
2335                 return -ENOMEM;
2336
2337         memset(fcoe_enable, 0, sizeof(*fcoe_enable));
2338         memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
2339         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
2340                                   FCOE_CONNECTION_TYPE, &l5_data);
2341         return ret;
2342 }
2343
2344 static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
2345 {
2346         struct fcoe_kwqe_conn_enable_disable *req;
2347         struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
2348         union l5cm_specific_data l5_data;
2349         int ret;
2350         u32 cid, l5_cid;
2351         struct cnic_local *cp = dev->cnic_priv;
2352
2353         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2354         cid = req->context_id;
2355         l5_cid = req->conn_id;
2356         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2357                 return -EINVAL;
2358
2359         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2360
2361         if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
2362                 netdev_err(dev->netdev, "fcoe_disable size too big\n");
2363                 return -ENOMEM;
2364         }
2365         fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2366         if (!fcoe_disable)
2367                 return -ENOMEM;
2368
2369         memset(fcoe_disable, 0, sizeof(*fcoe_disable));
2370         memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
2371         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
2372                                   FCOE_CONNECTION_TYPE, &l5_data);
2373         return ret;
2374 }
2375
2376 static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2377 {
2378         struct fcoe_kwqe_conn_destroy *req;
2379         union l5cm_specific_data l5_data;
2380         int ret;
2381         u32 cid, l5_cid;
2382         struct cnic_local *cp = dev->cnic_priv;
2383         struct cnic_context *ctx;
2384         struct fcoe_kcqe kcqe;
2385         struct kcqe *cqes[1];
2386
2387         req = (struct fcoe_kwqe_conn_destroy *) 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         ctx = &cp->ctx_tbl[l5_cid];
2396
2397         init_waitqueue_head(&ctx->waitq);
2398         ctx->wait_cond = 0;
2399
2400         memset(&l5_data, 0, sizeof(l5_data));
2401         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
2402                                   FCOE_CONNECTION_TYPE, &l5_data);
2403         if (ret == 0) {
2404                 wait_event(ctx->waitq, ctx->wait_cond);
2405                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2406                 queue_delayed_work(cnic_wq, &cp->delete_task,
2407                                    msecs_to_jiffies(2000));
2408         }
2409
2410         memset(&kcqe, 0, sizeof(kcqe));
2411         kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
2412         kcqe.fcoe_conn_id = req->conn_id;
2413         kcqe.fcoe_conn_context_id = cid;
2414
2415         cqes[0] = (struct kcqe *) &kcqe;
2416         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2417         return ret;
2418 }
2419
2420 static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2421 {
2422         struct fcoe_kwqe_destroy *req;
2423         union l5cm_specific_data l5_data;
2424         struct cnic_local *cp = dev->cnic_priv;
2425         int ret;
2426         u32 cid;
2427
2428         req = (struct fcoe_kwqe_destroy *) kwqe;
2429         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2430
2431         memset(&l5_data, 0, sizeof(l5_data));
2432         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY, cid,
2433                                   FCOE_CONNECTION_TYPE, &l5_data);
2434         return ret;
2435 }
2436
2437 static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev,
2438                                          struct kwqe *wqes[], u32 num_wqes)
2439 {
2440         int i, work, ret;
2441         u32 opcode;
2442         struct kwqe *kwqe;
2443
2444         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2445                 return -EAGAIN;         /* bnx2 is down */
2446
2447         for (i = 0; i < num_wqes; ) {
2448                 kwqe = wqes[i];
2449                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2450                 work = 1;
2451
2452                 switch (opcode) {
2453                 case ISCSI_KWQE_OPCODE_INIT1:
2454                         ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
2455                         break;
2456                 case ISCSI_KWQE_OPCODE_INIT2:
2457                         ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
2458                         break;
2459                 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
2460                         ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
2461                                                      num_wqes - i, &work);
2462                         break;
2463                 case ISCSI_KWQE_OPCODE_UPDATE_CONN:
2464                         ret = cnic_bnx2x_iscsi_update(dev, kwqe);
2465                         break;
2466                 case ISCSI_KWQE_OPCODE_DESTROY_CONN:
2467                         ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
2468                         break;
2469                 case L4_KWQE_OPCODE_VALUE_CONNECT1:
2470                         ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
2471                                                  &work);
2472                         break;
2473                 case L4_KWQE_OPCODE_VALUE_CLOSE:
2474                         ret = cnic_bnx2x_close(dev, kwqe);
2475                         break;
2476                 case L4_KWQE_OPCODE_VALUE_RESET:
2477                         ret = cnic_bnx2x_reset(dev, kwqe);
2478                         break;
2479                 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
2480                         ret = cnic_bnx2x_offload_pg(dev, kwqe);
2481                         break;
2482                 case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
2483                         ret = cnic_bnx2x_update_pg(dev, kwqe);
2484                         break;
2485                 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
2486                         ret = 0;
2487                         break;
2488                 default:
2489                         ret = 0;
2490                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2491                                    opcode);
2492                         break;
2493                 }
2494                 if (ret < 0)
2495                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2496                                    opcode);
2497                 i += work;
2498         }
2499         return 0;
2500 }
2501
2502 static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
2503                                         struct kwqe *wqes[], u32 num_wqes)
2504 {
2505         struct cnic_local *cp = dev->cnic_priv;
2506         int i, work, ret;
2507         u32 opcode;
2508         struct kwqe *kwqe;
2509
2510         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2511                 return -EAGAIN;         /* bnx2 is down */
2512
2513         if (BNX2X_CHIP_NUM(cp->chip_id) == BNX2X_CHIP_NUM_57710)
2514                 return -EINVAL;
2515
2516         for (i = 0; i < num_wqes; ) {
2517                 kwqe = wqes[i];
2518                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2519                 work = 1;
2520
2521                 switch (opcode) {
2522                 case FCOE_KWQE_OPCODE_INIT1:
2523                         ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
2524                                                     num_wqes - i, &work);
2525                         break;
2526                 case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
2527                         ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
2528                                                     num_wqes - i, &work);
2529                         break;
2530                 case FCOE_KWQE_OPCODE_ENABLE_CONN:
2531                         ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
2532                         break;
2533                 case FCOE_KWQE_OPCODE_DISABLE_CONN:
2534                         ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
2535                         break;
2536                 case FCOE_KWQE_OPCODE_DESTROY_CONN:
2537                         ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
2538                         break;
2539                 case FCOE_KWQE_OPCODE_DESTROY:
2540                         ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
2541                         break;
2542                 case FCOE_KWQE_OPCODE_STAT:
2543                         ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
2544                         break;
2545                 default:
2546                         ret = 0;
2547                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2548                                    opcode);
2549                         break;
2550                 }
2551                 if (ret < 0)
2552                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2553                                    opcode);
2554                 i += work;
2555         }
2556         return 0;
2557 }
2558
2559 static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
2560                                    u32 num_wqes)
2561 {
2562         int ret = -EINVAL;
2563         u32 layer_code;
2564
2565         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2566                 return -EAGAIN;         /* bnx2x is down */
2567
2568         if (!num_wqes)
2569                 return 0;
2570
2571         layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
2572         switch (layer_code) {
2573         case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
2574         case KWQE_FLAGS_LAYER_MASK_L4:
2575         case KWQE_FLAGS_LAYER_MASK_L2:
2576                 ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
2577                 break;
2578
2579         case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
2580                 ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
2581                 break;
2582         }
2583         return ret;
2584 }
2585
2586 static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
2587 {
2588         if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
2589                 return KCQE_FLAGS_LAYER_MASK_L4;
2590
2591         return opflag & KCQE_FLAGS_LAYER_MASK;
2592 }
2593
2594 static void service_kcqes(struct cnic_dev *dev, int num_cqes)
2595 {
2596         struct cnic_local *cp = dev->cnic_priv;
2597         int i, j, comp = 0;
2598
2599         i = 0;
2600         j = 1;
2601         while (num_cqes) {
2602                 struct cnic_ulp_ops *ulp_ops;
2603                 int ulp_type;
2604                 u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
2605                 u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag);
2606
2607                 if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
2608                         comp++;
2609
2610                 while (j < num_cqes) {
2611                         u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
2612
2613                         if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
2614                                 break;
2615
2616                         if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
2617                                 comp++;
2618                         j++;
2619                 }
2620
2621                 if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
2622                         ulp_type = CNIC_ULP_RDMA;
2623                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
2624                         ulp_type = CNIC_ULP_ISCSI;
2625                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE)
2626                         ulp_type = CNIC_ULP_FCOE;
2627                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
2628                         ulp_type = CNIC_ULP_L4;
2629                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
2630                         goto end;
2631                 else {
2632                         netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
2633                                    kcqe_op_flag);
2634                         goto end;
2635                 }
2636
2637                 rcu_read_lock();
2638                 ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
2639                 if (likely(ulp_ops)) {
2640                         ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
2641                                                   cp->completed_kcq + i, j);
2642                 }
2643                 rcu_read_unlock();
2644 end:
2645                 num_cqes -= j;
2646                 i += j;
2647                 j = 1;
2648         }
2649         if (unlikely(comp))
2650                 cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
2651 }
2652
2653 static u16 cnic_bnx2_next_idx(u16 idx)
2654 {
2655         return idx + 1;
2656 }
2657
2658 static u16 cnic_bnx2_hw_idx(u16 idx)
2659 {
2660         return idx;
2661 }
2662
2663 static u16 cnic_bnx2x_next_idx(u16 idx)
2664 {
2665         idx++;
2666         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
2667                 idx++;
2668
2669         return idx;
2670 }
2671
2672 static u16 cnic_bnx2x_hw_idx(u16 idx)
2673 {
2674         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
2675                 idx++;
2676         return idx;
2677 }
2678
2679 static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
2680 {
2681         struct cnic_local *cp = dev->cnic_priv;
2682         u16 i, ri, hw_prod, last;
2683         struct kcqe *kcqe;
2684         int kcqe_cnt = 0, last_cnt = 0;
2685
2686         i = ri = last = info->sw_prod_idx;
2687         ri &= MAX_KCQ_IDX;
2688         hw_prod = *info->hw_prod_idx_ptr;
2689         hw_prod = cp->hw_idx(hw_prod);
2690
2691         while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
2692                 kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
2693                 cp->completed_kcq[kcqe_cnt++] = kcqe;
2694                 i = cp->next_idx(i);
2695                 ri = i & MAX_KCQ_IDX;
2696                 if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
2697                         last_cnt = kcqe_cnt;
2698                         last = i;
2699                 }
2700         }
2701
2702         info->sw_prod_idx = last;
2703         return last_cnt;
2704 }
2705
2706 static int cnic_l2_completion(struct cnic_local *cp)
2707 {
2708         u16 hw_cons, sw_cons;
2709         struct cnic_uio_dev *udev = cp->udev;
2710         union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
2711                                         (udev->l2_ring + (2 * BCM_PAGE_SIZE));
2712         u32 cmd;
2713         int comp = 0;
2714
2715         if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
2716                 return 0;
2717
2718         hw_cons = *cp->rx_cons_ptr;
2719         if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
2720                 hw_cons++;
2721
2722         sw_cons = cp->rx_cons;
2723         while (sw_cons != hw_cons) {
2724                 u8 cqe_fp_flags;
2725
2726                 cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
2727                 cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
2728                 if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
2729                         cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
2730                         cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
2731                         if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
2732                             cmd == RAMROD_CMD_ID_ETH_HALT)
2733                                 comp++;
2734                 }
2735                 sw_cons = BNX2X_NEXT_RCQE(sw_cons);
2736         }
2737         return comp;
2738 }
2739
2740 static void cnic_chk_pkt_rings(struct cnic_local *cp)
2741 {
2742         u16 rx_cons, tx_cons;
2743         int comp = 0;
2744
2745         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
2746                 return;
2747
2748         rx_cons = *cp->rx_cons_ptr;
2749         tx_cons = *cp->tx_cons_ptr;
2750         if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
2751                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
2752                         comp = cnic_l2_completion(cp);
2753
2754                 cp->tx_cons = tx_cons;
2755                 cp->rx_cons = rx_cons;
2756
2757                 if (cp->udev)
2758                         uio_event_notify(&cp->udev->cnic_uinfo);
2759         }
2760         if (comp)
2761                 clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
2762 }
2763
2764 static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
2765 {
2766         struct cnic_local *cp = dev->cnic_priv;
2767         u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2768         int kcqe_cnt;
2769
2770         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2771
2772         while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
2773
2774                 service_kcqes(dev, kcqe_cnt);
2775
2776                 /* Tell compiler that status_blk fields can change. */
2777                 barrier();
2778                 if (status_idx != *cp->kcq1.status_idx_ptr) {
2779                         status_idx = (u16) *cp->kcq1.status_idx_ptr;
2780                         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2781                 } else
2782                         break;
2783         }
2784
2785         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
2786
2787         cnic_chk_pkt_rings(cp);
2788
2789         return status_idx;
2790 }
2791
2792 static int cnic_service_bnx2(void *data, void *status_blk)
2793 {
2794         struct cnic_dev *dev = data;
2795
2796         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2797                 struct status_block *sblk = status_blk;
2798
2799                 return sblk->status_idx;
2800         }
2801
2802         return cnic_service_bnx2_queues(dev);
2803 }
2804
2805 static void cnic_service_bnx2_msix(unsigned long data)
2806 {
2807         struct cnic_dev *dev = (struct cnic_dev *) data;
2808         struct cnic_local *cp = dev->cnic_priv;
2809
2810         cp->last_status_idx = cnic_service_bnx2_queues(dev);
2811
2812         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
2813                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
2814 }
2815
2816 static void cnic_doirq(struct cnic_dev *dev)
2817 {
2818         struct cnic_local *cp = dev->cnic_priv;
2819
2820         if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2821                 u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
2822
2823                 prefetch(cp->status_blk.gen);
2824                 prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
2825
2826                 tasklet_schedule(&cp->cnic_irq_task);
2827         }
2828 }
2829
2830 static irqreturn_t cnic_irq(int irq, void *dev_instance)
2831 {
2832         struct cnic_dev *dev = dev_instance;
2833         struct cnic_local *cp = dev->cnic_priv;
2834
2835         if (cp->ack_int)
2836                 cp->ack_int(dev);
2837
2838         cnic_doirq(dev);
2839
2840         return IRQ_HANDLED;
2841 }
2842
2843 static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
2844                                       u16 index, u8 op, u8 update)
2845 {
2846         struct cnic_local *cp = dev->cnic_priv;
2847         u32 hc_addr = (HC_REG_COMMAND_REG + CNIC_PORT(cp) * 32 +
2848                        COMMAND_REG_INT_ACK);
2849         struct igu_ack_register igu_ack;
2850
2851         igu_ack.status_block_index = index;
2852         igu_ack.sb_id_and_flags =
2853                         ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
2854                          (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
2855                          (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
2856                          (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
2857
2858         CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
2859 }
2860
2861 static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
2862                             u16 index, u8 op, u8 update)
2863 {
2864         struct igu_regular cmd_data;
2865         u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
2866
2867         cmd_data.sb_id_and_flags =
2868                 (index << IGU_REGULAR_SB_INDEX_SHIFT) |
2869                 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
2870                 (update << IGU_REGULAR_BUPDATE_SHIFT) |
2871                 (op << IGU_REGULAR_ENABLE_INT_SHIFT);
2872
2873
2874         CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
2875 }
2876
2877 static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
2878 {
2879         struct cnic_local *cp = dev->cnic_priv;
2880
2881         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
2882                            IGU_INT_DISABLE, 0);
2883 }
2884
2885 static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
2886 {
2887         struct cnic_local *cp = dev->cnic_priv;
2888
2889         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0,
2890                         IGU_INT_DISABLE, 0);
2891 }
2892
2893 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
2894 {
2895         u32 last_status = *info->status_idx_ptr;
2896         int kcqe_cnt;
2897
2898         while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
2899
2900                 service_kcqes(dev, kcqe_cnt);
2901
2902                 /* Tell compiler that sblk fields can change. */
2903                 barrier();
2904                 if (last_status == *info->status_idx_ptr)
2905                         break;
2906
2907                 last_status = *info->status_idx_ptr;
2908         }
2909         return last_status;
2910 }
2911
2912 static void cnic_service_bnx2x_bh(unsigned long data)
2913 {
2914         struct cnic_dev *dev = (struct cnic_dev *) data;
2915         struct cnic_local *cp = dev->cnic_priv;
2916         u32 status_idx;
2917
2918         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
2919                 return;
2920
2921         status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
2922
2923         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
2924
2925         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
2926                 status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
2927
2928                 CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
2929                           MAX_KCQ_IDX);
2930
2931                 cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
2932                                 status_idx, IGU_INT_ENABLE, 1);
2933         } else {
2934                 cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,
2935                                    status_idx, IGU_INT_ENABLE, 1);
2936         }
2937 }
2938
2939 static int cnic_service_bnx2x(void *data, void *status_blk)
2940 {
2941         struct cnic_dev *dev = data;
2942         struct cnic_local *cp = dev->cnic_priv;
2943
2944         if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
2945                 cnic_doirq(dev);
2946
2947         cnic_chk_pkt_rings(cp);
2948
2949         return 0;
2950 }
2951
2952 static void cnic_ulp_stop(struct cnic_dev *dev)
2953 {
2954         struct cnic_local *cp = dev->cnic_priv;
2955         int if_type;
2956
2957         cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
2958
2959         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
2960                 struct cnic_ulp_ops *ulp_ops;
2961
2962                 mutex_lock(&cnic_lock);
2963                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
2964                                                     lockdep_is_held(&cnic_lock));
2965                 if (!ulp_ops) {
2966                         mutex_unlock(&cnic_lock);
2967                         continue;
2968                 }
2969                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2970                 mutex_unlock(&cnic_lock);
2971
2972                 if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
2973                         ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
2974
2975                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2976         }
2977 }
2978
2979 static void cnic_ulp_start(struct cnic_dev *dev)
2980 {
2981         struct cnic_local *cp = dev->cnic_priv;
2982         int if_type;
2983
2984         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
2985                 struct cnic_ulp_ops *ulp_ops;
2986
2987                 mutex_lock(&cnic_lock);
2988                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
2989                                                     lockdep_is_held(&cnic_lock));
2990                 if (!ulp_ops || !ulp_ops->cnic_start) {
2991                         mutex_unlock(&cnic_lock);
2992                         continue;
2993                 }
2994                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2995                 mutex_unlock(&cnic_lock);
2996
2997                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
2998                         ulp_ops->cnic_start(cp->ulp_handle[if_type]);
2999
3000                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3001         }
3002 }
3003
3004 static int cnic_ctl(void *data, struct cnic_ctl_info *info)
3005 {
3006         struct cnic_dev *dev = data;
3007
3008         switch (info->cmd) {
3009         case CNIC_CTL_STOP_CMD:
3010                 cnic_hold(dev);
3011
3012                 cnic_ulp_stop(dev);
3013                 cnic_stop_hw(dev);
3014
3015                 cnic_put(dev);
3016                 break;
3017         case CNIC_CTL_START_CMD:
3018                 cnic_hold(dev);
3019
3020                 if (!cnic_start_hw(dev))
3021                         cnic_ulp_start(dev);
3022
3023                 cnic_put(dev);
3024                 break;
3025         case CNIC_CTL_COMPLETION_CMD: {
3026                 u32 cid = BNX2X_SW_CID(info->data.comp.cid);
3027                 u32 l5_cid;
3028                 struct cnic_local *cp = dev->cnic_priv;
3029
3030                 if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
3031                         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3032
3033                         ctx->wait_cond = 1;
3034                         wake_up(&ctx->waitq);
3035                 }
3036                 break;
3037         }
3038         default:
3039                 return -EINVAL;
3040         }
3041         return 0;
3042 }
3043
3044 static void cnic_ulp_init(struct cnic_dev *dev)
3045 {
3046         int i;
3047         struct cnic_local *cp = dev->cnic_priv;
3048
3049         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3050                 struct cnic_ulp_ops *ulp_ops;
3051
3052                 mutex_lock(&cnic_lock);
3053                 ulp_ops = cnic_ulp_tbl_prot(i);
3054                 if (!ulp_ops || !ulp_ops->cnic_init) {
3055                         mutex_unlock(&cnic_lock);
3056                         continue;
3057                 }
3058                 ulp_get(ulp_ops);
3059                 mutex_unlock(&cnic_lock);
3060
3061                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3062                         ulp_ops->cnic_init(dev);
3063
3064                 ulp_put(ulp_ops);
3065         }
3066 }
3067
3068 static void cnic_ulp_exit(struct cnic_dev *dev)
3069 {
3070         int i;
3071         struct cnic_local *cp = dev->cnic_priv;
3072
3073         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3074                 struct cnic_ulp_ops *ulp_ops;
3075
3076                 mutex_lock(&cnic_lock);
3077                 ulp_ops = cnic_ulp_tbl_prot(i);
3078                 if (!ulp_ops || !ulp_ops->cnic_exit) {
3079                         mutex_unlock(&cnic_lock);
3080                         continue;
3081                 }
3082                 ulp_get(ulp_ops);
3083                 mutex_unlock(&cnic_lock);
3084
3085                 if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3086                         ulp_ops->cnic_exit(dev);
3087
3088                 ulp_put(ulp_ops);
3089         }
3090 }
3091
3092 static int cnic_cm_offload_pg(struct cnic_sock *csk)
3093 {
3094         struct cnic_dev *dev = csk->dev;
3095         struct l4_kwq_offload_pg *l4kwqe;
3096         struct kwqe *wqes[1];
3097
3098         l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
3099         memset(l4kwqe, 0, sizeof(*l4kwqe));
3100         wqes[0] = (struct kwqe *) l4kwqe;
3101
3102         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
3103         l4kwqe->flags =
3104                 L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
3105         l4kwqe->l2hdr_nbytes = ETH_HLEN;
3106
3107         l4kwqe->da0 = csk->ha[0];
3108         l4kwqe->da1 = csk->ha[1];
3109         l4kwqe->da2 = csk->ha[2];
3110         l4kwqe->da3 = csk->ha[3];
3111         l4kwqe->da4 = csk->ha[4];
3112         l4kwqe->da5 = csk->ha[5];
3113
3114         l4kwqe->sa0 = dev->mac_addr[0];
3115         l4kwqe->sa1 = dev->mac_addr[1];
3116         l4kwqe->sa2 = dev->mac_addr[2];
3117         l4kwqe->sa3 = dev->mac_addr[3];
3118         l4kwqe->sa4 = dev->mac_addr[4];
3119         l4kwqe->sa5 = dev->mac_addr[5];
3120
3121         l4kwqe->etype = ETH_P_IP;
3122         l4kwqe->ipid_start = DEF_IPID_START;
3123         l4kwqe->host_opaque = csk->l5_cid;
3124
3125         if (csk->vlan_id) {
3126                 l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
3127                 l4kwqe->vlan_tag = csk->vlan_id;
3128                 l4kwqe->l2hdr_nbytes += 4;
3129         }
3130
3131         return dev->submit_kwqes(dev, wqes, 1);
3132 }
3133
3134 static int cnic_cm_update_pg(struct cnic_sock *csk)
3135 {
3136         struct cnic_dev *dev = csk->dev;
3137         struct l4_kwq_update_pg *l4kwqe;
3138         struct kwqe *wqes[1];
3139
3140         l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
3141         memset(l4kwqe, 0, sizeof(*l4kwqe));
3142         wqes[0] = (struct kwqe *) l4kwqe;
3143
3144         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
3145         l4kwqe->flags =
3146                 L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
3147         l4kwqe->pg_cid = csk->pg_cid;
3148
3149         l4kwqe->da0 = csk->ha[0];
3150         l4kwqe->da1 = csk->ha[1];
3151         l4kwqe->da2 = csk->ha[2];
3152         l4kwqe->da3 = csk->ha[3];
3153         l4kwqe->da4 = csk->ha[4];
3154         l4kwqe->da5 = csk->ha[5];
3155
3156         l4kwqe->pg_host_opaque = csk->l5_cid;
3157         l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
3158
3159         return dev->submit_kwqes(dev, wqes, 1);
3160 }
3161
3162 static int cnic_cm_upload_pg(struct cnic_sock *csk)
3163 {
3164         struct cnic_dev *dev = csk->dev;
3165         struct l4_kwq_upload *l4kwqe;
3166         struct kwqe *wqes[1];
3167
3168         l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
3169         memset(l4kwqe, 0, sizeof(*l4kwqe));
3170         wqes[0] = (struct kwqe *) l4kwqe;
3171
3172         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
3173         l4kwqe->flags =
3174                 L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
3175         l4kwqe->cid = csk->pg_cid;
3176
3177         return dev->submit_kwqes(dev, wqes, 1);
3178 }
3179
3180 static int cnic_cm_conn_req(struct cnic_sock *csk)
3181 {
3182         struct cnic_dev *dev = csk->dev;
3183         struct l4_kwq_connect_req1 *l4kwqe1;
3184         struct l4_kwq_connect_req2 *l4kwqe2;
3185         struct l4_kwq_connect_req3 *l4kwqe3;
3186         struct kwqe *wqes[3];
3187         u8 tcp_flags = 0;
3188         int num_wqes = 2;
3189
3190         l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
3191         l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
3192         l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
3193         memset(l4kwqe1, 0, sizeof(*l4kwqe1));
3194         memset(l4kwqe2, 0, sizeof(*l4kwqe2));
3195         memset(l4kwqe3, 0, sizeof(*l4kwqe3));
3196
3197         l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
3198         l4kwqe3->flags =
3199                 L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
3200         l4kwqe3->ka_timeout = csk->ka_timeout;
3201         l4kwqe3->ka_interval = csk->ka_interval;
3202         l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
3203         l4kwqe3->tos = csk->tos;
3204         l4kwqe3->ttl = csk->ttl;
3205         l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
3206         l4kwqe3->pmtu = csk->mtu;
3207         l4kwqe3->rcv_buf = csk->rcv_buf;
3208         l4kwqe3->snd_buf = csk->snd_buf;
3209         l4kwqe3->seed = csk->seed;
3210
3211         wqes[0] = (struct kwqe *) l4kwqe1;
3212         if (test_bit(SK_F_IPV6, &csk->flags)) {
3213                 wqes[1] = (struct kwqe *) l4kwqe2;
3214                 wqes[2] = (struct kwqe *) l4kwqe3;
3215                 num_wqes = 3;
3216
3217                 l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
3218                 l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
3219                 l4kwqe2->flags =
3220                         L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
3221                         L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
3222                 l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
3223                 l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
3224                 l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
3225                 l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
3226                 l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
3227                 l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
3228                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
3229                                sizeof(struct tcphdr);
3230         } else {
3231                 wqes[1] = (struct kwqe *) l4kwqe3;
3232                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
3233                                sizeof(struct tcphdr);
3234         }
3235
3236         l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
3237         l4kwqe1->flags =
3238                 (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
3239                  L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
3240         l4kwqe1->cid = csk->cid;
3241         l4kwqe1->pg_cid = csk->pg_cid;
3242         l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
3243         l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
3244         l4kwqe1->src_port = be16_to_cpu(csk->src_port);
3245         l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
3246         if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
3247                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
3248         if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
3249                 tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
3250         if (csk->tcp_flags & SK_TCP_NAGLE)
3251                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
3252         if (csk->tcp_flags & SK_TCP_TIMESTAMP)
3253                 tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
3254         if (csk->tcp_flags & SK_TCP_SACK)
3255                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
3256         if (csk->tcp_flags & SK_TCP_SEG_SCALING)
3257                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
3258
3259         l4kwqe1->tcp_flags = tcp_flags;
3260
3261         return dev->submit_kwqes(dev, wqes, num_wqes);
3262 }
3263
3264 static int cnic_cm_close_req(struct cnic_sock *csk)
3265 {
3266         struct cnic_dev *dev = csk->dev;
3267         struct l4_kwq_close_req *l4kwqe;
3268         struct kwqe *wqes[1];
3269
3270         l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
3271         memset(l4kwqe, 0, sizeof(*l4kwqe));
3272         wqes[0] = (struct kwqe *) l4kwqe;
3273
3274         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
3275         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
3276         l4kwqe->cid = csk->cid;
3277
3278         return dev->submit_kwqes(dev, wqes, 1);
3279 }
3280
3281 static int cnic_cm_abort_req(struct cnic_sock *csk)
3282 {
3283         struct cnic_dev *dev = csk->dev;
3284         struct l4_kwq_reset_req *l4kwqe;
3285         struct kwqe *wqes[1];
3286
3287         l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
3288         memset(l4kwqe, 0, sizeof(*l4kwqe));
3289         wqes[0] = (struct kwqe *) l4kwqe;
3290
3291         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
3292         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
3293         l4kwqe->cid = csk->cid;
3294
3295         return dev->submit_kwqes(dev, wqes, 1);
3296 }
3297
3298 static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
3299                           u32 l5_cid, struct cnic_sock **csk, void *context)
3300 {
3301         struct cnic_local *cp = dev->cnic_priv;
3302         struct cnic_sock *csk1;
3303
3304         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3305                 return -EINVAL;
3306
3307         if (cp->ctx_tbl) {
3308                 struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3309
3310                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3311                         return -EAGAIN;
3312         }
3313
3314         csk1 = &cp->csk_tbl[l5_cid];
3315         if (atomic_read(&csk1->ref_count))
3316                 return -EAGAIN;
3317
3318         if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
3319                 return -EBUSY;
3320
3321         csk1->dev = dev;
3322         csk1->cid = cid;
3323         csk1->l5_cid = l5_cid;
3324         csk1->ulp_type = ulp_type;
3325         csk1->context = context;
3326
3327         csk1->ka_timeout = DEF_KA_TIMEOUT;
3328         csk1->ka_interval = DEF_KA_INTERVAL;
3329         csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
3330         csk1->tos = DEF_TOS;
3331         csk1->ttl = DEF_TTL;
3332         csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
3333         csk1->rcv_buf = DEF_RCV_BUF;
3334         csk1->snd_buf = DEF_SND_BUF;
3335         csk1->seed = DEF_SEED;
3336
3337         *csk = csk1;
3338         return 0;
3339 }
3340
3341 static void cnic_cm_cleanup(struct cnic_sock *csk)
3342 {
3343         if (csk->src_port) {
3344                 struct cnic_dev *dev = csk->dev;
3345                 struct cnic_local *cp = dev->cnic_priv;
3346
3347                 cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
3348                 csk->src_port = 0;
3349         }
3350 }
3351
3352 static void cnic_close_conn(struct cnic_sock *csk)
3353 {
3354         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
3355                 cnic_cm_upload_pg(csk);
3356                 clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3357         }
3358         cnic_cm_cleanup(csk);
3359 }
3360
3361 static int cnic_cm_destroy(struct cnic_sock *csk)
3362 {
3363         if (!cnic_in_use(csk))
3364                 return -EINVAL;
3365
3366         csk_hold(csk);
3367         clear_bit(SK_F_INUSE, &csk->flags);
3368         smp_mb__after_clear_bit();
3369         while (atomic_read(&csk->ref_count) != 1)
3370                 msleep(1);
3371         cnic_cm_cleanup(csk);
3372
3373         csk->flags = 0;
3374         csk_put(csk);
3375         return 0;
3376 }
3377
3378 static inline u16 cnic_get_vlan(struct net_device *dev,
3379                                 struct net_device **vlan_dev)
3380 {
3381         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3382                 *vlan_dev = vlan_dev_real_dev(dev);
3383                 return vlan_dev_vlan_id(dev);
3384         }
3385         *vlan_dev = dev;
3386         return 0;
3387 }
3388
3389 static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
3390                              struct dst_entry **dst)
3391 {
3392 #if defined(CONFIG_INET)
3393         struct flowi fl;
3394         int err;
3395         struct rtable *rt;
3396
3397         memset(&fl, 0, sizeof(fl));
3398         fl.nl_u.ip4_u.daddr = dst_addr->sin_addr.s_addr;
3399
3400         rt = ip_route_output_key(&init_net, &fl);
3401         err = 0;
3402         if (!IS_ERR(rt))
3403                 *dst = &rt->dst;
3404         else
3405                 err = PTR_ERR(rt);
3406         return err;
3407 #else
3408         return -ENETUNREACH;
3409 #endif
3410 }
3411
3412 static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
3413                              struct dst_entry **dst)
3414 {
3415 #if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
3416         struct flowi fl;
3417
3418         memset(&fl, 0, sizeof(fl));
3419         ipv6_addr_copy(&fl.fl6_dst, &dst_addr->sin6_addr);
3420         if (ipv6_addr_type(&fl.fl6_dst) & IPV6_ADDR_LINKLOCAL)
3421                 fl.oif = dst_addr->sin6_scope_id;
3422
3423         *dst = ip6_route_output(&init_net, NULL, &fl);
3424         if (*dst)
3425                 return 0;
3426 #endif
3427
3428         return -ENETUNREACH;
3429 }
3430
3431 static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
3432                                            int ulp_type)
3433 {
3434         struct cnic_dev *dev = NULL;
3435         struct dst_entry *dst;
3436         struct net_device *netdev = NULL;
3437         int err = -ENETUNREACH;
3438
3439         if (dst_addr->sin_family == AF_INET)
3440                 err = cnic_get_v4_route(dst_addr, &dst);
3441         else if (dst_addr->sin_family == AF_INET6) {
3442                 struct sockaddr_in6 *dst_addr6 =
3443                         (struct sockaddr_in6 *) dst_addr;
3444
3445                 err = cnic_get_v6_route(dst_addr6, &dst);
3446         } else
3447                 return NULL;
3448
3449         if (err)
3450                 return NULL;
3451
3452         if (!dst->dev)
3453                 goto done;
3454
3455         cnic_get_vlan(dst->dev, &netdev);
3456
3457         dev = cnic_from_netdev(netdev);
3458
3459 done:
3460         dst_release(dst);
3461         if (dev)
3462                 cnic_put(dev);
3463         return dev;
3464 }
3465
3466 static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3467 {
3468         struct cnic_dev *dev = csk->dev;
3469         struct cnic_local *cp = dev->cnic_priv;
3470
3471         return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
3472 }
3473
3474 static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3475 {
3476         struct cnic_dev *dev = csk->dev;
3477         struct cnic_local *cp = dev->cnic_priv;
3478         int is_v6, rc = 0;
3479         struct dst_entry *dst = NULL;
3480         struct net_device *realdev;
3481         __be16 local_port;
3482         u32 port_id;
3483
3484         if (saddr->local.v6.sin6_family == AF_INET6 &&
3485             saddr->remote.v6.sin6_family == AF_INET6)
3486                 is_v6 = 1;
3487         else if (saddr->local.v4.sin_family == AF_INET &&
3488                  saddr->remote.v4.sin_family == AF_INET)
3489                 is_v6 = 0;
3490         else
3491                 return -EINVAL;
3492
3493         clear_bit(SK_F_IPV6, &csk->flags);
3494
3495         if (is_v6) {
3496                 set_bit(SK_F_IPV6, &csk->flags);
3497                 cnic_get_v6_route(&saddr->remote.v6, &dst);
3498
3499                 memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
3500                        sizeof(struct in6_addr));
3501                 csk->dst_port = saddr->remote.v6.sin6_port;
3502                 local_port = saddr->local.v6.sin6_port;
3503
3504         } else {
3505                 cnic_get_v4_route(&saddr->remote.v4, &dst);
3506
3507                 csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
3508                 csk->dst_port = saddr->remote.v4.sin_port;
3509                 local_port = saddr->local.v4.sin_port;
3510         }
3511
3512         csk->vlan_id = 0;
3513         csk->mtu = dev->netdev->mtu;
3514         if (dst && dst->dev) {
3515                 u16 vlan = cnic_get_vlan(dst->dev, &realdev);
3516                 if (realdev == dev->netdev) {
3517                         csk->vlan_id = vlan;
3518                         csk->mtu = dst_mtu(dst);
3519                 }
3520         }
3521
3522         port_id = be16_to_cpu(local_port);
3523         if (port_id >= CNIC_LOCAL_PORT_MIN &&
3524             port_id < CNIC_LOCAL_PORT_MAX) {
3525                 if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
3526                         port_id = 0;
3527         } else
3528                 port_id = 0;
3529
3530         if (!port_id) {
3531                 port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
3532                 if (port_id == -1) {
3533                         rc = -ENOMEM;
3534                         goto err_out;
3535                 }
3536                 local_port = cpu_to_be16(port_id);
3537         }
3538         csk->src_port = local_port;
3539
3540 err_out:
3541         dst_release(dst);
3542         return rc;
3543 }
3544
3545 static void cnic_init_csk_state(struct cnic_sock *csk)
3546 {
3547         csk->state = 0;
3548         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3549         clear_bit(SK_F_CLOSING, &csk->flags);
3550 }
3551
3552 static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3553 {
3554         int err = 0;
3555
3556         if (!cnic_in_use(csk))
3557                 return -EINVAL;
3558
3559         if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
3560                 return -EINVAL;
3561
3562         cnic_init_csk_state(csk);
3563
3564         err = cnic_get_route(csk, saddr);
3565         if (err)
3566                 goto err_out;
3567
3568         err = cnic_resolve_addr(csk, saddr);
3569         if (!err)
3570                 return 0;
3571
3572 err_out:
3573         clear_bit(SK_F_CONNECT_START, &csk->flags);
3574         return err;
3575 }
3576
3577 static int cnic_cm_abort(struct cnic_sock *csk)
3578 {
3579         struct cnic_local *cp = csk->dev->cnic_priv;
3580         u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
3581
3582         if (!cnic_in_use(csk))
3583                 return -EINVAL;
3584
3585         if (cnic_abort_prep(csk))
3586                 return cnic_cm_abort_req(csk);
3587
3588         /* Getting here means that we haven't started connect, or
3589          * connect was not successful.
3590          */
3591
3592         cp->close_conn(csk, opcode);
3593         if (csk->state != opcode)
3594                 return -EALREADY;
3595
3596         return 0;
3597 }
3598
3599 static int cnic_cm_close(struct cnic_sock *csk)
3600 {
3601         if (!cnic_in_use(csk))
3602                 return -EINVAL;
3603
3604         if (cnic_close_prep(csk)) {
3605                 csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
3606                 return cnic_cm_close_req(csk);
3607         } else {
3608                 return -EALREADY;
3609         }
3610         return 0;
3611 }
3612
3613 static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
3614                            u8 opcode)
3615 {
3616         struct cnic_ulp_ops *ulp_ops;
3617         int ulp_type = csk->ulp_type;
3618
3619         rcu_read_lock();
3620         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
3621         if (ulp_ops) {
3622                 if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
3623                         ulp_ops->cm_connect_complete(csk);
3624                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3625                         ulp_ops->cm_close_complete(csk);
3626                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
3627                         ulp_ops->cm_remote_abort(csk);
3628                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
3629                         ulp_ops->cm_abort_complete(csk);
3630                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
3631                         ulp_ops->cm_remote_close(csk);
3632         }
3633         rcu_read_unlock();
3634 }
3635
3636 static int cnic_cm_set_pg(struct cnic_sock *csk)
3637 {
3638         if (cnic_offld_prep(csk)) {
3639                 if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3640                         cnic_cm_update_pg(csk);
3641                 else
3642                         cnic_cm_offload_pg(csk);
3643         }
3644         return 0;
3645 }
3646
3647 static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
3648 {
3649         struct cnic_local *cp = dev->cnic_priv;
3650         u32 l5_cid = kcqe->pg_host_opaque;
3651         u8 opcode = kcqe->op_code;
3652         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
3653
3654         csk_hold(csk);
3655         if (!cnic_in_use(csk))
3656                 goto done;
3657
3658         if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3659                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3660                 goto done;
3661         }
3662         /* Possible PG kcqe status:  SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
3663         if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
3664                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3665                 cnic_cm_upcall(cp, csk,
3666                                L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3667                 goto done;
3668         }
3669
3670         csk->pg_cid = kcqe->pg_cid;
3671         set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3672         cnic_cm_conn_req(csk);
3673
3674 done:
3675         csk_put(csk);
3676 }
3677
3678 static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
3679 {
3680         struct cnic_local *cp = dev->cnic_priv;
3681         struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
3682         u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
3683         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3684
3685         ctx->timestamp = jiffies;
3686         ctx->wait_cond = 1;
3687         wake_up(&ctx->waitq);
3688 }
3689
3690 static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
3691 {
3692         struct cnic_local *cp = dev->cnic_priv;
3693         struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
3694         u8 opcode = l4kcqe->op_code;
3695         u32 l5_cid;
3696         struct cnic_sock *csk;
3697
3698         if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
3699                 cnic_process_fcoe_term_conn(dev, kcqe);
3700                 return;
3701         }
3702         if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
3703             opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3704                 cnic_cm_process_offld_pg(dev, l4kcqe);
3705                 return;
3706         }
3707
3708         l5_cid = l4kcqe->conn_id;
3709         if (opcode & 0x80)
3710                 l5_cid = l4kcqe->cid;
3711         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3712                 return;
3713
3714         csk = &cp->csk_tbl[l5_cid];
3715         csk_hold(csk);
3716
3717         if (!cnic_in_use(csk)) {
3718                 csk_put(csk);
3719                 return;
3720         }
3721
3722         switch (opcode) {
3723         case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
3724                 if (l4kcqe->status != 0) {
3725                         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3726                         cnic_cm_upcall(cp, csk,
3727                                        L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3728                 }
3729                 break;
3730         case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
3731                 if (l4kcqe->status == 0)
3732                         set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
3733
3734                 smp_mb__before_clear_bit();
3735                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3736                 cnic_cm_upcall(cp, csk, opcode);
3737                 break;
3738
3739         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3740         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3741         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3742         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3743         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3744                 cp->close_conn(csk, opcode);
3745                 break;
3746
3747         case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
3748                 cnic_cm_upcall(cp, csk, opcode);
3749                 break;
3750         }
3751         csk_put(csk);
3752 }
3753
3754 static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
3755 {
3756         struct cnic_dev *dev = data;
3757         int i;
3758
3759         for (i = 0; i < num; i++)
3760                 cnic_cm_process_kcqe(dev, kcqe[i]);
3761 }
3762
3763 static struct cnic_ulp_ops cm_ulp_ops = {
3764         .indicate_kcqes         = cnic_cm_indicate_kcqe,
3765 };
3766
3767 static void cnic_cm_free_mem(struct cnic_dev *dev)
3768 {
3769         struct cnic_local *cp = dev->cnic_priv;
3770
3771         kfree(cp->csk_tbl);
3772         cp->csk_tbl = NULL;
3773         cnic_free_id_tbl(&cp->csk_port_tbl);
3774 }
3775
3776 static int cnic_cm_alloc_mem(struct cnic_dev *dev)
3777 {
3778         struct cnic_local *cp = dev->cnic_priv;
3779
3780         cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ,
3781                               GFP_KERNEL);
3782         if (!cp->csk_tbl)
3783                 return -ENOMEM;
3784
3785         if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
3786                              CNIC_LOCAL_PORT_MIN)) {
3787                 cnic_cm_free_mem(dev);
3788                 return -ENOMEM;
3789         }
3790         return 0;
3791 }
3792
3793 static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
3794 {
3795         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
3796                 /* Unsolicited RESET_COMP or RESET_RECEIVED */
3797                 opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
3798                 csk->state = opcode;
3799         }
3800
3801         /* 1. If event opcode matches the expected event in csk->state
3802          * 2. If the expected event is CLOSE_COMP, we accept any event
3803          * 3. If the expected event is 0, meaning the connection was never
3804          *    never established, we accept the opcode from cm_abort.
3805          */
3806         if (opcode == csk->state || csk->state == 0 ||
3807             csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP) {
3808                 if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
3809                         if (csk->state == 0)
3810                                 csk->state = opcode;
3811                         return 1;
3812                 }
3813         }
3814         return 0;
3815 }
3816
3817 static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
3818 {
3819         struct cnic_dev *dev = csk->dev;
3820         struct cnic_local *cp = dev->cnic_priv;
3821
3822         if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
3823                 cnic_cm_upcall(cp, csk, opcode);
3824                 return;
3825         }
3826
3827         clear_bit(SK_F_CONNECT_START, &csk->flags);
3828         cnic_close_conn(csk);
3829         csk->state = opcode;
3830         cnic_cm_upcall(cp, csk, opcode);
3831 }
3832
3833 static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
3834 {
3835 }
3836
3837 static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
3838 {
3839         u32 seed;
3840
3841         get_random_bytes(&seed, 4);
3842         cnic_ctx_wr(dev, 45, 0, seed);
3843         return 0;
3844 }
3845
3846 static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
3847 {
3848         struct cnic_dev *dev = csk->dev;
3849         struct cnic_local *cp = dev->cnic_priv;
3850         struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
3851         union l5cm_specific_data l5_data;
3852         u32 cmd = 0;
3853         int close_complete = 0;
3854
3855         switch (opcode) {
3856         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3857         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3858         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3859                 if (cnic_ready_to_close(csk, opcode)) {
3860                         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3861                                 cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
3862                         else
3863                                 close_complete = 1;
3864                 }
3865                 break;
3866         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3867                 cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
3868                 break;
3869         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3870                 close_complete = 1;
3871                 break;
3872         }
3873         if (cmd) {
3874                 memset(&l5_data, 0, sizeof(l5_data));
3875
3876                 cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
3877                                     &l5_data);
3878         } else if (close_complete) {
3879                 ctx->timestamp = jiffies;
3880                 cnic_close_conn(csk);
3881                 cnic_cm_upcall(cp, csk, csk->state);
3882         }
3883 }
3884
3885 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
3886 {
3887         struct cnic_local *cp = dev->cnic_priv;
3888         int i;
3889
3890         if (!cp->ctx_tbl)
3891                 return;
3892
3893         if (!netif_running(dev->netdev))
3894                 return;
3895
3896         for (i = 0; i < cp->max_cid_space; i++) {
3897                 struct cnic_context *ctx = &cp->ctx_tbl[i];
3898
3899                 while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
3900                         msleep(10);
3901
3902                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3903                         netdev_warn(dev->netdev, "CID %x not deleted\n",
3904                                    ctx->cid);
3905         }
3906
3907         cancel_delayed_work(&cp->delete_task);
3908         flush_workqueue(cnic_wq);
3909
3910         if (atomic_read(&cp->iscsi_conn) != 0)
3911                 netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
3912                             atomic_read(&cp->iscsi_conn));
3913 }
3914
3915 static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
3916 {
3917         struct cnic_local *cp = dev->cnic_priv;
3918         u32 pfid = cp->pfid;
3919         u32 port = CNIC_PORT(cp);
3920
3921         cnic_init_bnx2x_mac(dev);
3922         cnic_bnx2x_set_tcp_timestamp(dev, 1);
3923
3924         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
3925                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
3926
3927         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3928                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
3929         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3930                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
3931                 DEF_MAX_DA_COUNT);
3932
3933         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3934                  XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
3935         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3936                  XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
3937         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3938                  XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
3939         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3940                 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
3941
3942         CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
3943                 DEF_MAX_CWND);
3944         return 0;
3945 }
3946
3947 static void cnic_delete_task(struct work_struct *work)
3948 {
3949         struct cnic_local *cp;
3950         struct cnic_dev *dev;
3951         u32 i;
3952         int need_resched = 0;
3953
3954         cp = container_of(work, struct cnic_local, delete_task.work);
3955         dev = cp->dev;
3956
3957         for (i = 0; i < cp->max_cid_space; i++) {
3958                 struct cnic_context *ctx = &cp->ctx_tbl[i];
3959
3960                 if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
3961                     !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
3962                         continue;
3963
3964                 if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
3965                         need_resched = 1;
3966                         continue;
3967                 }
3968
3969                 if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
3970                         continue;
3971
3972                 cnic_bnx2x_destroy_ramrod(dev, i);
3973
3974                 cnic_free_bnx2x_conn_resc(dev, i);
3975                 if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
3976                         atomic_dec(&cp->iscsi_conn);
3977
3978                 clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
3979         }
3980
3981         if (need_resched)
3982                 queue_delayed_work(cnic_wq, &cp->delete_task,
3983                                    msecs_to_jiffies(10));
3984
3985 }
3986
3987 static int cnic_cm_open(struct cnic_dev *dev)
3988 {
3989         struct cnic_local *cp = dev->cnic_priv;
3990         int err;
3991
3992         err = cnic_cm_alloc_mem(dev);
3993         if (err)
3994                 return err;
3995
3996         err = cp->start_cm(dev);
3997
3998         if (err)
3999                 goto err_out;
4000
4001         INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
4002
4003         dev->cm_create = cnic_cm_create;
4004         dev->cm_destroy = cnic_cm_destroy;
4005         dev->cm_connect = cnic_cm_connect;
4006         dev->cm_abort = cnic_cm_abort;
4007         dev->cm_close = cnic_cm_close;
4008         dev->cm_select_dev = cnic_cm_select_dev;
4009
4010         cp->ulp_handle[CNIC_ULP_L4] = dev;
4011         rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
4012         return 0;
4013
4014 err_out:
4015         cnic_cm_free_mem(dev);
4016         return err;
4017 }
4018
4019 static int cnic_cm_shutdown(struct cnic_dev *dev)
4020 {
4021         struct cnic_local *cp = dev->cnic_priv;
4022         int i;
4023
4024         cp->stop_cm(dev);
4025
4026         if (!cp->csk_tbl)
4027                 return 0;
4028
4029         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
4030                 struct cnic_sock *csk = &cp->csk_tbl[i];
4031
4032                 clear_bit(SK_F_INUSE, &csk->flags);
4033                 cnic_cm_cleanup(csk);
4034         }
4035         cnic_cm_free_mem(dev);
4036
4037         return 0;
4038 }
4039
4040 static void cnic_init_context(struct cnic_dev *dev, u32 cid)
4041 {
4042         u32 cid_addr;
4043         int i;
4044
4045         cid_addr = GET_CID_ADDR(cid);
4046
4047         for (i = 0; i < CTX_SIZE; i += 4)
4048                 cnic_ctx_wr(dev, cid_addr, i, 0);
4049 }
4050
4051 static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
4052 {
4053         struct cnic_local *cp = dev->cnic_priv;
4054         int ret = 0, i;
4055         u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
4056
4057         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4058                 return 0;
4059
4060         for (i = 0; i < cp->ctx_blks; i++) {
4061                 int j;
4062                 u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
4063                 u32 val;
4064
4065                 memset(cp->ctx_arr[i].ctx, 0, BCM_PAGE_SIZE);
4066
4067                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
4068                         (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
4069                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
4070                         (u64) cp->ctx_arr[i].mapping >> 32);
4071                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
4072                         BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
4073                 for (j = 0; j < 10; j++) {
4074
4075                         val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
4076                         if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
4077                                 break;
4078                         udelay(5);
4079                 }
4080                 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
4081                         ret = -EBUSY;
4082                         break;
4083                 }
4084         }
4085         return ret;
4086 }
4087
4088 static void cnic_free_irq(struct cnic_dev *dev)
4089 {
4090         struct cnic_local *cp = dev->cnic_priv;
4091         struct cnic_eth_dev *ethdev = cp->ethdev;
4092
4093         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4094                 cp->disable_int_sync(dev);
4095                 tasklet_kill(&cp->cnic_irq_task);
4096                 free_irq(ethdev->irq_arr[0].vector, dev);
4097         }
4098 }
4099
4100 static int cnic_request_irq(struct cnic_dev *dev)
4101 {
4102         struct cnic_local *cp = dev->cnic_priv;
4103         struct cnic_eth_dev *ethdev = cp->ethdev;
4104         int err;
4105
4106         err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
4107         if (err)
4108                 tasklet_disable(&cp->cnic_irq_task);
4109
4110         return err;
4111 }
4112
4113 static int cnic_init_bnx2_irq(struct cnic_dev *dev)
4114 {
4115         struct cnic_local *cp = dev->cnic_priv;
4116         struct cnic_eth_dev *ethdev = cp->ethdev;
4117
4118         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4119                 int err, i = 0;
4120                 int sblk_num = cp->status_blk_num;
4121                 u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
4122                            BNX2_HC_SB_CONFIG_1;
4123
4124                 CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
4125
4126                 CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
4127                 CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
4128                 CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
4129
4130                 cp->last_status_idx = cp->status_blk.bnx2->status_idx;
4131                 tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix,
4132                              (unsigned long) dev);
4133                 err = cnic_request_irq(dev);
4134                 if (err)
4135                         return err;
4136
4137                 while (cp->status_blk.bnx2->status_completion_producer_index &&
4138                        i < 10) {
4139                         CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
4140                                 1 << (11 + sblk_num));
4141                         udelay(10);
4142                         i++;
4143                         barrier();
4144                 }
4145                 if (cp->status_blk.bnx2->status_completion_producer_index) {
4146                         cnic_free_irq(dev);
4147                         goto failed;
4148                 }
4149
4150         } else {
4151                 struct status_block *sblk = cp->status_blk.gen;
4152                 u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
4153                 int i = 0;
4154
4155                 while (sblk->status_completion_producer_index && i < 10) {
4156                         CNIC_WR(dev, BNX2_HC_COMMAND,
4157                                 hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
4158                         udelay(10);
4159                         i++;
4160                         barrier();
4161                 }
4162                 if (sblk->status_completion_producer_index)
4163                         goto failed;
4164
4165         }
4166         return 0;
4167
4168 failed:
4169         netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
4170         return -EBUSY;
4171 }
4172
4173 static void cnic_enable_bnx2_int(struct cnic_dev *dev)
4174 {
4175         struct cnic_local *cp = dev->cnic_priv;
4176         struct cnic_eth_dev *ethdev = cp->ethdev;
4177
4178         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4179                 return;
4180
4181         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4182                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
4183 }
4184
4185 static void cnic_get_bnx2_iscsi_info(struct cnic_dev *dev)
4186 {
4187         u32 max_conn;
4188
4189         max_conn = cnic_reg_rd_ind(dev, BNX2_FW_MAX_ISCSI_CONN);
4190         dev->max_iscsi_conn = max_conn;
4191 }
4192
4193 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
4194 {
4195         struct cnic_local *cp = dev->cnic_priv;
4196         struct cnic_eth_dev *ethdev = cp->ethdev;
4197
4198         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4199                 return;
4200
4201         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4202                 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4203         CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
4204         synchronize_irq(ethdev->irq_arr[0].vector);
4205 }
4206
4207 static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
4208 {
4209         struct cnic_local *cp = dev->cnic_priv;
4210         struct cnic_eth_dev *ethdev = cp->ethdev;
4211         struct cnic_uio_dev *udev = cp->udev;
4212         u32 cid_addr, tx_cid, sb_id;
4213         u32 val, offset0, offset1, offset2, offset3;
4214         int i;
4215         struct tx_bd *txbd;
4216         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4217         struct status_block *s_blk = cp->status_blk.gen;
4218
4219         sb_id = cp->status_blk_num;
4220         tx_cid = 20;
4221         cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
4222         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4223                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4224
4225                 tx_cid = TX_TSS_CID + sb_id - 1;
4226                 CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
4227                         (TX_TSS_CID << 7));
4228                 cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
4229         }
4230         cp->tx_cons = *cp->tx_cons_ptr;
4231
4232         cid_addr = GET_CID_ADDR(tx_cid);
4233         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
4234                 u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
4235
4236                 for (i = 0; i < PHY_CTX_SIZE; i += 4)
4237                         cnic_ctx_wr(dev, cid_addr2, i, 0);
4238
4239                 offset0 = BNX2_L2CTX_TYPE_XI;
4240                 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
4241                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
4242                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
4243         } else {
4244                 cnic_init_context(dev, tx_cid);
4245                 cnic_init_context(dev, tx_cid + 1);
4246
4247                 offset0 = BNX2_L2CTX_TYPE;
4248                 offset1 = BNX2_L2CTX_CMD_TYPE;
4249                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
4250                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
4251         }
4252         val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
4253         cnic_ctx_wr(dev, cid_addr, offset0, val);
4254
4255         val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
4256         cnic_ctx_wr(dev, cid_addr, offset1, val);
4257
4258         txbd = (struct tx_bd *) udev->l2_ring;
4259
4260         buf_map = udev->l2_buf_map;
4261         for (i = 0; i < MAX_TX_DESC_CNT; i++, txbd++) {
4262                 txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
4263                 txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4264         }
4265         val = (u64) ring_map >> 32;
4266         cnic_ctx_wr(dev, cid_addr, offset2, val);
4267         txbd->tx_bd_haddr_hi = val;
4268
4269         val = (u64) ring_map & 0xffffffff;
4270         cnic_ctx_wr(dev, cid_addr, offset3, val);
4271         txbd->tx_bd_haddr_lo = val;
4272 }
4273
4274 static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
4275 {
4276         struct cnic_local *cp = dev->cnic_priv;
4277         struct cnic_eth_dev *ethdev = cp->ethdev;
4278         struct cnic_uio_dev *udev = cp->udev;
4279         u32 cid_addr, sb_id, val, coal_reg, coal_val;
4280         int i;
4281         struct rx_bd *rxbd;
4282         struct status_block *s_blk = cp->status_blk.gen;
4283         dma_addr_t ring_map = udev->l2_ring_map;
4284
4285         sb_id = cp->status_blk_num;
4286         cnic_init_context(dev, 2);
4287         cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
4288         coal_reg = BNX2_HC_COMMAND;
4289         coal_val = CNIC_RD(dev, coal_reg);
4290         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4291                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4292
4293                 cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
4294                 coal_reg = BNX2_HC_COALESCE_NOW;
4295                 coal_val = 1 << (11 + sb_id);
4296         }
4297         i = 0;
4298         while (!(*cp->rx_cons_ptr != 0) && i < 10) {
4299                 CNIC_WR(dev, coal_reg, coal_val);
4300                 udelay(10);
4301                 i++;
4302                 barrier();
4303         }
4304         cp->rx_cons = *cp->rx_cons_ptr;
4305
4306         cid_addr = GET_CID_ADDR(2);
4307         val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4308               BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4309         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
4310
4311         if (sb_id == 0)
4312                 val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
4313         else
4314                 val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
4315         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
4316
4317         rxbd = (struct rx_bd *) (udev->l2_ring + BCM_PAGE_SIZE);
4318         for (i = 0; i < MAX_RX_DESC_CNT; i++, rxbd++) {
4319                 dma_addr_t buf_map;
4320                 int n = (i % cp->l2_rx_ring_size) + 1;
4321
4322                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4323                 rxbd->rx_bd_len = cp->l2_single_buf_size;
4324                 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
4325                 rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
4326                 rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4327         }
4328         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4329         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
4330         rxbd->rx_bd_haddr_hi = val;
4331
4332         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4333         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
4334         rxbd->rx_bd_haddr_lo = val;
4335
4336         val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
4337         cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
4338 }
4339
4340 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
4341 {
4342         struct kwqe *wqes[1], l2kwqe;
4343
4344         memset(&l2kwqe, 0, sizeof(l2kwqe));
4345         wqes[0] = &l2kwqe;
4346         l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
4347                               (L2_KWQE_OPCODE_VALUE_FLUSH <<
4348                                KWQE_OPCODE_SHIFT) | 2;
4349         dev->submit_kwqes(dev, wqes, 1);
4350 }
4351
4352 static void cnic_set_bnx2_mac(struct cnic_dev *dev)
4353 {
4354         struct cnic_local *cp = dev->cnic_priv;
4355         u32 val;
4356
4357         val = cp->func << 2;
4358
4359         cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
4360
4361         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4362                               BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
4363         dev->mac_addr[0] = (u8) (val >> 8);
4364         dev->mac_addr[1] = (u8) val;
4365
4366         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
4367
4368         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4369                               BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
4370         dev->mac_addr[2] = (u8) (val >> 24);
4371         dev->mac_addr[3] = (u8) (val >> 16);
4372         dev->mac_addr[4] = (u8) (val >> 8);
4373         dev->mac_addr[5] = (u8) val;
4374
4375         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
4376
4377         val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
4378         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4379                 val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
4380
4381         CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
4382         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
4383         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
4384 }
4385
4386 static int cnic_start_bnx2_hw(struct cnic_dev *dev)
4387 {
4388         struct cnic_local *cp = dev->cnic_priv;
4389         struct cnic_eth_dev *ethdev = cp->ethdev;
4390         struct status_block *sblk = cp->status_blk.gen;
4391         u32 val, kcq_cid_addr, kwq_cid_addr;
4392         int err;
4393
4394         cnic_set_bnx2_mac(dev);
4395
4396         val = CNIC_RD(dev, BNX2_MQ_CONFIG);
4397         val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4398         if (BCM_PAGE_BITS > 12)
4399                 val |= (12 - 8)  << 4;
4400         else
4401                 val |= (BCM_PAGE_BITS - 8)  << 4;
4402
4403         CNIC_WR(dev, BNX2_MQ_CONFIG, val);
4404
4405         CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
4406         CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
4407         CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
4408
4409         err = cnic_setup_5709_context(dev, 1);
4410         if (err)
4411                 return err;
4412
4413         cnic_init_context(dev, KWQ_CID);
4414         cnic_init_context(dev, KCQ_CID);
4415
4416         kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
4417         cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
4418
4419         cp->max_kwq_idx = MAX_KWQ_IDX;
4420         cp->kwq_prod_idx = 0;
4421         cp->kwq_con_idx = 0;
4422         set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
4423
4424         if (CHIP_NUM(cp) == CHIP_NUM_5706 || CHIP_NUM(cp) == CHIP_NUM_5708)
4425                 cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
4426         else
4427                 cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
4428
4429         /* Initialize the kernel work queue context. */
4430         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4431               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4432         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
4433
4434         val = (BCM_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
4435         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4436
4437         val = ((BCM_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
4438         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4439
4440         val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
4441         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4442
4443         val = (u32) cp->kwq_info.pgtbl_map;
4444         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4445
4446         kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
4447         cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
4448
4449         cp->kcq1.sw_prod_idx = 0;
4450         cp->kcq1.hw_prod_idx_ptr =
4451                 (u16 *) &sblk->status_completion_producer_index;
4452
4453         cp->kcq1.status_idx_ptr = (u16 *) &sblk->status_idx;
4454
4455         /* Initialize the kernel complete queue context. */
4456         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4457               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4458         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
4459
4460         val = (BCM_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
4461         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4462
4463         val = ((BCM_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
4464         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4465
4466         val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
4467         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4468
4469         val = (u32) cp->kcq1.dma.pgtbl_map;
4470         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4471
4472         cp->int_num = 0;
4473         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4474                 struct status_block_msix *msblk = cp->status_blk.bnx2;
4475                 u32 sb_id = cp->status_blk_num;
4476                 u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
4477
4478                 cp->kcq1.hw_prod_idx_ptr =
4479                         (u16 *) &msblk->status_completion_producer_index;
4480                 cp->kcq1.status_idx_ptr = (u16 *) &msblk->status_idx;
4481                 cp->kwq_con_idx_ptr = (u16 *) &msblk->status_cmd_consumer_index;
4482                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
4483                 cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4484                 cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4485         }
4486
4487         /* Enable Commnad Scheduler notification when we write to the
4488          * host producer index of the kernel contexts. */
4489         CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
4490
4491         /* Enable Command Scheduler notification when we write to either
4492          * the Send Queue or Receive Queue producer indexes of the kernel
4493          * bypass contexts. */
4494         CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
4495         CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
4496
4497         /* Notify COM when the driver post an application buffer. */
4498         CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
4499
4500         /* Set the CP and COM doorbells.  These two processors polls the
4501          * doorbell for a non zero value before running.  This must be done
4502          * after setting up the kernel queue contexts. */
4503         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
4504         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
4505
4506         cnic_init_bnx2_tx_ring(dev);
4507         cnic_init_bnx2_rx_ring(dev);
4508
4509         err = cnic_init_bnx2_irq(dev);
4510         if (err) {
4511                 netdev_err(dev->netdev, "cnic_init_irq failed\n");
4512                 cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
4513                 cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
4514                 return err;
4515         }
4516
4517         cnic_get_bnx2_iscsi_info(dev);
4518
4519         return 0;
4520 }
4521
4522 static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
4523 {
4524         struct cnic_local *cp = dev->cnic_priv;
4525         struct cnic_eth_dev *ethdev = cp->ethdev;
4526         u32 start_offset = ethdev->ctx_tbl_offset;
4527         int i;
4528
4529         for (i = 0; i < cp->ctx_blks; i++) {
4530                 struct cnic_ctx *ctx = &cp->ctx_arr[i];
4531                 dma_addr_t map = ctx->mapping;
4532
4533                 if (cp->ctx_align) {
4534                         unsigned long mask = cp->ctx_align - 1;
4535
4536                         map = (map + mask) & ~mask;
4537                 }
4538
4539                 cnic_ctx_tbl_wr(dev, start_offset + i, map);
4540         }
4541 }
4542
4543 static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
4544 {
4545         struct cnic_local *cp = dev->cnic_priv;
4546         struct cnic_eth_dev *ethdev = cp->ethdev;
4547         int err = 0;
4548
4549         tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh,
4550                      (unsigned long) dev);
4551         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
4552                 err = cnic_request_irq(dev);
4553
4554         return err;
4555 }
4556
4557 static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
4558                                                 u16 sb_id, u8 sb_index,
4559                                                 u8 disable)
4560 {
4561
4562         u32 addr = BAR_CSTRORM_INTMEM +
4563                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4564                         offsetof(struct hc_status_block_data_e1x, index_data) +
4565                         sizeof(struct hc_index_data)*sb_index +
4566                         offsetof(struct hc_index_data, flags);
4567         u16 flags = CNIC_RD16(dev, addr);
4568         /* clear and set */
4569         flags &= ~HC_INDEX_DATA_HC_ENABLED;
4570         flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
4571                   HC_INDEX_DATA_HC_ENABLED);
4572         CNIC_WR16(dev, addr, flags);
4573 }
4574
4575 static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
4576 {
4577         struct cnic_local *cp = dev->cnic_priv;
4578         u8 sb_id = cp->status_blk_num;
4579
4580         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4581                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4582                         offsetof(struct hc_status_block_data_e1x, index_data) +
4583                         sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
4584                         offsetof(struct hc_index_data, timeout), 64 / 12);
4585         cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
4586 }
4587
4588 static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
4589 {
4590 }
4591
4592 static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
4593                                     struct client_init_ramrod_data *data)
4594 {
4595         struct cnic_local *cp = dev->cnic_priv;
4596         struct cnic_uio_dev *udev = cp->udev;
4597         union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
4598         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4599         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4600         int port = CNIC_PORT(cp);
4601         int i;
4602         u32 cli = cp->ethdev->iscsi_l2_client_id;
4603         u32 val;
4604
4605         memset(txbd, 0, BCM_PAGE_SIZE);
4606
4607         buf_map = udev->l2_buf_map;
4608         for (i = 0; i < MAX_TX_DESC_CNT; i += 3, txbd += 3) {
4609                 struct eth_tx_start_bd *start_bd = &txbd->start_bd;
4610                 struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
4611
4612                 start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4613                 start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4614                 reg_bd->addr_hi = start_bd->addr_hi;
4615                 reg_bd->addr_lo = start_bd->addr_lo + 0x10;
4616                 start_bd->nbytes = cpu_to_le16(0x10);
4617                 start_bd->nbd = cpu_to_le16(3);
4618                 start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
4619                 start_bd->general_data = (UNICAST_ADDRESS <<
4620                         ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT);
4621                 start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
4622
4623         }
4624
4625         val = (u64) ring_map >> 32;
4626         txbd->next_bd.addr_hi = cpu_to_le32(val);
4627
4628         data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
4629
4630         val = (u64) ring_map & 0xffffffff;
4631         txbd->next_bd.addr_lo = cpu_to_le32(val);
4632
4633         data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
4634
4635         /* Other ramrod params */
4636         data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
4637         data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
4638
4639         /* reset xstorm per client statistics */
4640         if (cli < MAX_STAT_COUNTER_ID) {
4641                 val = BAR_XSTRORM_INTMEM +
4642                       XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4643                 for (i = 0; i < sizeof(struct xstorm_per_client_stats) / 4; i++)
4644                         CNIC_WR(dev, val + i * 4, 0);
4645         }
4646
4647         cp->tx_cons_ptr =
4648                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
4649 }
4650
4651 static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
4652                                     struct client_init_ramrod_data *data)
4653 {
4654         struct cnic_local *cp = dev->cnic_priv;
4655         struct cnic_uio_dev *udev = cp->udev;
4656         struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
4657                                 BCM_PAGE_SIZE);
4658         struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
4659                                 (udev->l2_ring + (2 * BCM_PAGE_SIZE));
4660         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4661         int i;
4662         int port = CNIC_PORT(cp);
4663         u32 cli = cp->ethdev->iscsi_l2_client_id;
4664         int cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4665         u32 val;
4666         dma_addr_t ring_map = udev->l2_ring_map;
4667
4668         /* General data */
4669         data->general.client_id = cli;
4670         data->general.statistics_en_flg = 1;
4671         data->general.statistics_counter_id = cli;
4672         data->general.activate_flg = 1;
4673         data->general.sp_client_id = cli;
4674
4675         for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
4676                 dma_addr_t buf_map;
4677                 int n = (i % cp->l2_rx_ring_size) + 1;
4678
4679                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4680                 rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4681                 rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4682         }
4683
4684         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4685         rxbd->addr_hi = cpu_to_le32(val);
4686         data->rx.bd_page_base.hi = cpu_to_le32(val);
4687
4688         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4689         rxbd->addr_lo = cpu_to_le32(val);
4690         data->rx.bd_page_base.lo = cpu_to_le32(val);
4691
4692         rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
4693         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) >> 32;
4694         rxcqe->addr_hi = cpu_to_le32(val);
4695         data->rx.cqe_page_base.hi = cpu_to_le32(val);
4696
4697         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) & 0xffffffff;
4698         rxcqe->addr_lo = cpu_to_le32(val);
4699         data->rx.cqe_page_base.lo = cpu_to_le32(val);
4700
4701         /* Other ramrod params */
4702         data->rx.client_qzone_id = cl_qzone_id;
4703         data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
4704         data->rx.status_block_id = BNX2X_DEF_SB_ID;
4705
4706         data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
4707         data->rx.bd_buff_size = cpu_to_le16(cp->l2_single_buf_size);
4708
4709         data->rx.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
4710         data->rx.outer_vlan_removal_enable_flg = 1;
4711
4712         /* reset tstorm and ustorm per client statistics */
4713         if (cli < MAX_STAT_COUNTER_ID) {
4714                 val = BAR_TSTRORM_INTMEM +
4715                       TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4716                 for (i = 0; i < sizeof(struct tstorm_per_client_stats) / 4; i++)
4717                         CNIC_WR(dev, val + i * 4, 0);
4718
4719                 val = BAR_USTRORM_INTMEM +
4720                       USTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
4721                 for (i = 0; i < sizeof(struct ustorm_per_client_stats) / 4; i++)
4722                         CNIC_WR(dev, val + i * 4, 0);
4723         }
4724
4725         cp->rx_cons_ptr =
4726                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
4727         cp->rx_cons = *cp->rx_cons_ptr;
4728 }
4729
4730 static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
4731 {
4732         struct cnic_local *cp = dev->cnic_priv;
4733         u32 pfid = cp->pfid;
4734
4735         cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
4736                            CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
4737         cp->kcq1.sw_prod_idx = 0;
4738
4739         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4740                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4741
4742                 cp->kcq1.hw_prod_idx_ptr =
4743                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4744                 cp->kcq1.status_idx_ptr =
4745                         &sb->sb.running_index[SM_RX_ID];
4746         } else {
4747                 struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
4748
4749                 cp->kcq1.hw_prod_idx_ptr =
4750                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4751                 cp->kcq1.status_idx_ptr =
4752                         &sb->sb.running_index[SM_RX_ID];
4753         }
4754
4755         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4756                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4757
4758                 cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
4759                                         USTORM_FCOE_EQ_PROD_OFFSET(pfid);
4760                 cp->kcq2.sw_prod_idx = 0;
4761                 cp->kcq2.hw_prod_idx_ptr =
4762                         &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
4763                 cp->kcq2.status_idx_ptr =
4764                         &sb->sb.running_index[SM_RX_ID];
4765         }
4766 }
4767
4768 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
4769 {
4770         struct cnic_local *cp = dev->cnic_priv;
4771         struct cnic_eth_dev *ethdev = cp->ethdev;
4772         int func = CNIC_FUNC(cp), ret, i;
4773         u32 pfid;
4774
4775         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4776                 u32 val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN_OVWR);
4777
4778                 if (!(val & 1))
4779                         val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN);
4780                 else
4781                         val = (val >> 1) & 1;
4782
4783                 if (val)
4784                         cp->pfid = func >> 1;
4785                 else
4786                         cp->pfid = func & 0x6;
4787         } else {
4788                 cp->pfid = func;
4789         }
4790         pfid = cp->pfid;
4791
4792         ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
4793                                cp->iscsi_start_cid);
4794
4795         if (ret)
4796                 return -ENOMEM;
4797
4798         if (BNX2X_CHIP_IS_E2(cp->chip_id)) {
4799                 ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl,
4800                                         BNX2X_FCOE_NUM_CONNECTIONS,
4801                                         cp->fcoe_start_cid);
4802
4803                 if (ret)
4804                         return -ENOMEM;
4805         }
4806
4807         cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
4808
4809         cnic_init_bnx2x_kcq(dev);
4810
4811         /* Only 1 EQ */
4812         CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
4813         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4814                 CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
4815         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4816                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
4817                 cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
4818         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4819                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
4820                 (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
4821         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4822                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
4823                 cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
4824         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4825                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
4826                 (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
4827         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4828                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
4829         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
4830                 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
4831         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4832                 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
4833                 HC_INDEX_ISCSI_EQ_CONS);
4834
4835         for (i = 0; i < cp->conn_buf_info.num_pages; i++) {
4836                 CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4837                         TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(pfid, i),
4838                         cp->conn_buf_info.pgtbl[2 * i]);
4839                 CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4840                         TSTORM_ISCSI_CONN_BUF_PBL_OFFSET(pfid, i) + 4,
4841                         cp->conn_buf_info.pgtbl[(2 * i) + 1]);
4842         }
4843
4844         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4845                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
4846                 cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
4847         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4848                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
4849                 (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
4850
4851         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4852                 TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
4853
4854         cnic_setup_bnx2x_context(dev);
4855
4856         ret = cnic_init_bnx2x_irq(dev);
4857         if (ret)
4858                 return ret;
4859
4860         return 0;
4861 }
4862
4863 static void cnic_init_rings(struct cnic_dev *dev)
4864 {
4865         struct cnic_local *cp = dev->cnic_priv;
4866         struct cnic_uio_dev *udev = cp->udev;
4867
4868         if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4869                 return;
4870
4871         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4872                 cnic_init_bnx2_tx_ring(dev);
4873                 cnic_init_bnx2_rx_ring(dev);
4874                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4875         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4876                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4877                 u32 cid = cp->ethdev->iscsi_l2_cid;
4878                 u32 cl_qzone_id;
4879                 struct client_init_ramrod_data *data;
4880                 union l5cm_specific_data l5_data;
4881                 struct ustorm_eth_rx_producers rx_prods = {0};
4882                 u32 off, i;
4883
4884                 rx_prods.bd_prod = 0;
4885                 rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
4886                 barrier();
4887
4888                 cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4889
4890                 off = BAR_USTRORM_INTMEM +
4891                         (BNX2X_CHIP_IS_E2(cp->chip_id) ?
4892                          USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
4893                          USTORM_RX_PRODS_E1X_OFFSET(CNIC_PORT(cp), cli));
4894
4895                 for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
4896                         CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
4897
4898                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4899
4900                 data = udev->l2_buf;
4901
4902                 memset(data, 0, sizeof(*data));
4903
4904                 cnic_init_bnx2x_tx_ring(dev, data);
4905                 cnic_init_bnx2x_rx_ring(dev, data);
4906
4907                 l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
4908                 l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
4909
4910                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4911
4912                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
4913                         cid, ETH_CONNECTION_TYPE, &l5_data);
4914
4915                 i = 0;
4916                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
4917                        ++i < 10)
4918                         msleep(1);
4919
4920                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
4921                         netdev_err(dev->netdev,
4922                                 "iSCSI CLIENT_SETUP did not complete\n");
4923                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
4924                 cnic_ring_ctl(dev, cid, cli, 1);
4925         }
4926 }
4927
4928 static void cnic_shutdown_rings(struct cnic_dev *dev)
4929 {
4930         struct cnic_local *cp = dev->cnic_priv;
4931
4932         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4933                 return;
4934
4935         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4936                 cnic_shutdown_bnx2_rx_ring(dev);
4937         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4938                 struct cnic_local *cp = dev->cnic_priv;
4939                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4940                 u32 cid = cp->ethdev->iscsi_l2_cid;
4941                 union l5cm_specific_data l5_data;
4942                 int i;
4943
4944                 cnic_ring_ctl(dev, cid, cli, 0);
4945
4946                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4947
4948                 l5_data.phy_address.lo = cli;
4949                 l5_data.phy_address.hi = 0;
4950                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
4951                         cid, ETH_CONNECTION_TYPE, &l5_data);
4952                 i = 0;
4953                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
4954                        ++i < 10)
4955                         msleep(1);
4956
4957                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
4958                         netdev_err(dev->netdev,
4959                                 "iSCSI CLIENT_HALT did not complete\n");
4960                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
4961
4962                 memset(&l5_data, 0, sizeof(l5_data));
4963                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
4964                         cid, NONE_CONNECTION_TYPE, &l5_data);
4965                 msleep(10);
4966         }
4967         clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4968 }
4969
4970 static int cnic_register_netdev(struct cnic_dev *dev)
4971 {
4972         struct cnic_local *cp = dev->cnic_priv;
4973         struct cnic_eth_dev *ethdev = cp->ethdev;
4974         int err;
4975
4976         if (!ethdev)
4977                 return -ENODEV;
4978
4979         if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
4980                 return 0;
4981
4982         err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
4983         if (err)
4984                 netdev_err(dev->netdev, "register_cnic failed\n");
4985
4986         return err;
4987 }
4988
4989 static void cnic_unregister_netdev(struct cnic_dev *dev)
4990 {
4991         struct cnic_local *cp = dev->cnic_priv;
4992         struct cnic_eth_dev *ethdev = cp->ethdev;
4993
4994         if (!ethdev)
4995                 return;
4996
4997         ethdev->drv_unregister_cnic(dev->netdev);
4998 }
4999
5000 static int cnic_start_hw(struct cnic_dev *dev)
5001 {
5002         struct cnic_local *cp = dev->cnic_priv;
5003         struct cnic_eth_dev *ethdev = cp->ethdev;
5004         int err;
5005
5006         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
5007                 return -EALREADY;
5008
5009         dev->regview = ethdev->io_base;
5010         pci_dev_get(dev->pcidev);
5011         cp->func = PCI_FUNC(dev->pcidev->devfn);
5012         cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
5013         cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
5014
5015         err = cp->alloc_resc(dev);
5016         if (err) {
5017                 netdev_err(dev->netdev, "allocate resource failure\n");
5018                 goto err1;
5019         }
5020
5021         err = cp->start_hw(dev);
5022         if (err)
5023                 goto err1;
5024
5025         err = cnic_cm_open(dev);
5026         if (err)
5027                 goto err1;
5028
5029         set_bit(CNIC_F_CNIC_UP, &dev->flags);
5030
5031         cp->enable_int(dev);
5032
5033         return 0;
5034
5035 err1:
5036         cp->free_resc(dev);
5037         pci_dev_put(dev->pcidev);
5038         return err;
5039 }
5040
5041 static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
5042 {
5043         cnic_disable_bnx2_int_sync(dev);
5044
5045         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
5046         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
5047
5048         cnic_init_context(dev, KWQ_CID);
5049         cnic_init_context(dev, KCQ_CID);
5050
5051         cnic_setup_5709_context(dev, 0);
5052         cnic_free_irq(dev);
5053
5054         cnic_free_resc(dev);
5055 }
5056
5057
5058 static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
5059 {
5060         struct cnic_local *cp = dev->cnic_priv;
5061
5062         cnic_free_irq(dev);
5063         *cp->kcq1.hw_prod_idx_ptr = 0;
5064         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5065                 CSTORM_ISCSI_EQ_CONS_OFFSET(cp->pfid, 0), 0);
5066         CNIC_WR16(dev, cp->kcq1.io_addr, 0);
5067         cnic_free_resc(dev);
5068 }
5069
5070 static void cnic_stop_hw(struct cnic_dev *dev)
5071 {
5072         if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5073                 struct cnic_local *cp = dev->cnic_priv;
5074                 int i = 0;
5075
5076                 /* Need to wait for the ring shutdown event to complete
5077                  * before clearing the CNIC_UP flag.
5078                  */
5079                 while (cp->udev->uio_dev != -1 && i < 15) {
5080                         msleep(100);
5081                         i++;
5082                 }
5083                 cnic_shutdown_rings(dev);
5084                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
5085                 rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], NULL);
5086                 synchronize_rcu();
5087                 cnic_cm_shutdown(dev);
5088                 cp->stop_hw(dev);
5089                 pci_dev_put(dev->pcidev);
5090         }
5091 }
5092
5093 static void cnic_free_dev(struct cnic_dev *dev)
5094 {
5095         int i = 0;
5096
5097         while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
5098                 msleep(100);
5099                 i++;
5100         }
5101         if (atomic_read(&dev->ref_count) != 0)
5102                 netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
5103
5104         netdev_info(dev->netdev, "Removed CNIC device\n");
5105         dev_put(dev->netdev);
5106         kfree(dev);
5107 }
5108
5109 static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
5110                                        struct pci_dev *pdev)
5111 {
5112         struct cnic_dev *cdev;
5113         struct cnic_local *cp;
5114         int alloc_size;
5115
5116         alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
5117
5118         cdev = kzalloc(alloc_size , GFP_KERNEL);
5119         if (cdev == NULL) {
5120                 netdev_err(dev, "allocate dev struct failure\n");
5121                 return NULL;
5122         }
5123
5124         cdev->netdev = dev;
5125         cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
5126         cdev->register_device = cnic_register_device;
5127         cdev->unregister_device = cnic_unregister_device;
5128         cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
5129
5130         cp = cdev->cnic_priv;
5131         cp->dev = cdev;
5132         cp->l2_single_buf_size = 0x400;
5133         cp->l2_rx_ring_size = 3;
5134
5135         spin_lock_init(&cp->cnic_ulp_lock);
5136
5137         netdev_info(dev, "Added CNIC device\n");
5138
5139         return cdev;
5140 }
5141
5142 static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
5143 {
5144         struct pci_dev *pdev;
5145         struct cnic_dev *cdev;
5146         struct cnic_local *cp;
5147         struct cnic_eth_dev *ethdev = NULL;
5148         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5149
5150         probe = symbol_get(bnx2_cnic_probe);
5151         if (probe) {
5152                 ethdev = (*probe)(dev);
5153                 symbol_put(bnx2_cnic_probe);
5154         }
5155         if (!ethdev)
5156                 return NULL;
5157
5158         pdev = ethdev->pdev;
5159         if (!pdev)
5160                 return NULL;
5161
5162         dev_hold(dev);
5163         pci_dev_get(pdev);
5164         if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
5165              pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
5166             (pdev->revision < 0x10)) {
5167                 pci_dev_put(pdev);
5168                 goto cnic_err;
5169         }
5170         pci_dev_put(pdev);
5171
5172         cdev = cnic_alloc_dev(dev, pdev);
5173         if (cdev == NULL)
5174                 goto cnic_err;
5175
5176         set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
5177         cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
5178
5179         cp = cdev->cnic_priv;
5180         cp->ethdev = ethdev;
5181         cdev->pcidev = pdev;
5182         cp->chip_id = ethdev->chip_id;
5183
5184         cp->cnic_ops = &cnic_bnx2_ops;
5185         cp->start_hw = cnic_start_bnx2_hw;
5186         cp->stop_hw = cnic_stop_bnx2_hw;
5187         cp->setup_pgtbl = cnic_setup_page_tbl;
5188         cp->alloc_resc = cnic_alloc_bnx2_resc;
5189         cp->free_resc = cnic_free_resc;
5190         cp->start_cm = cnic_cm_init_bnx2_hw;
5191         cp->stop_cm = cnic_cm_stop_bnx2_hw;
5192         cp->enable_int = cnic_enable_bnx2_int;
5193         cp->disable_int_sync = cnic_disable_bnx2_int_sync;
5194         cp->close_conn = cnic_close_bnx2_conn;
5195         cp->next_idx = cnic_bnx2_next_idx;
5196         cp->hw_idx = cnic_bnx2_hw_idx;
5197         return cdev;
5198
5199 cnic_err:
5200         dev_put(dev);
5201         return NULL;
5202 }
5203
5204 static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
5205 {
5206         struct pci_dev *pdev;
5207         struct cnic_dev *cdev;
5208         struct cnic_local *cp;
5209         struct cnic_eth_dev *ethdev = NULL;
5210         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5211
5212         probe = symbol_get(bnx2x_cnic_probe);
5213         if (probe) {
5214                 ethdev = (*probe)(dev);
5215                 symbol_put(bnx2x_cnic_probe);
5216         }
5217         if (!ethdev)
5218                 return NULL;
5219
5220         pdev = ethdev->pdev;
5221         if (!pdev)
5222                 return NULL;
5223
5224         dev_hold(dev);
5225         cdev = cnic_alloc_dev(dev, pdev);
5226         if (cdev == NULL) {
5227                 dev_put(dev);
5228                 return NULL;
5229         }
5230
5231         set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
5232         cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
5233
5234         cp = cdev->cnic_priv;
5235         cp->ethdev = ethdev;
5236         cdev->pcidev = pdev;
5237         cp->chip_id = ethdev->chip_id;
5238
5239         if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
5240                 cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5241         if (BNX2X_CHIP_IS_E2(cp->chip_id) &&
5242             !(ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
5243                 cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
5244
5245         memcpy(cdev->mac_addr, ethdev->iscsi_mac, 6);
5246
5247         cp->cnic_ops = &cnic_bnx2x_ops;
5248         cp->start_hw = cnic_start_bnx2x_hw;
5249         cp->stop_hw = cnic_stop_bnx2x_hw;
5250         cp->setup_pgtbl = cnic_setup_page_tbl_le;
5251         cp->alloc_resc = cnic_alloc_bnx2x_resc;
5252         cp->free_resc = cnic_free_resc;
5253         cp->start_cm = cnic_cm_init_bnx2x_hw;
5254         cp->stop_cm = cnic_cm_stop_bnx2x_hw;
5255         cp->enable_int = cnic_enable_bnx2x_int;
5256         cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
5257         if (BNX2X_CHIP_IS_E2(cp->chip_id))
5258                 cp->ack_int = cnic_ack_bnx2x_e2_msix;
5259         else
5260                 cp->ack_int = cnic_ack_bnx2x_msix;
5261         cp->close_conn = cnic_close_bnx2x_conn;
5262         cp->next_idx = cnic_bnx2x_next_idx;
5263         cp->hw_idx = cnic_bnx2x_hw_idx;
5264         return cdev;
5265 }
5266
5267 static struct cnic_dev *is_cnic_dev(struct net_device *dev)
5268 {
5269         struct ethtool_drvinfo drvinfo;
5270         struct cnic_dev *cdev = NULL;
5271
5272         if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
5273                 memset(&drvinfo, 0, sizeof(drvinfo));
5274                 dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
5275
5276                 if (!strcmp(drvinfo.driver, "bnx2"))
5277                         cdev = init_bnx2_cnic(dev);
5278                 if (!strcmp(drvinfo.driver, "bnx2x"))
5279                         cdev = init_bnx2x_cnic(dev);
5280                 if (cdev) {
5281                         write_lock(&cnic_dev_lock);
5282                         list_add(&cdev->list, &cnic_dev_list);
5283                         write_unlock(&cnic_dev_lock);
5284                 }
5285         }
5286         return cdev;
5287 }
5288
5289 /**
5290  * netdev event handler
5291  */
5292 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
5293                                                          void *ptr)
5294 {
5295         struct net_device *netdev = ptr;
5296         struct cnic_dev *dev;
5297         int if_type;
5298         int new_dev = 0;
5299
5300         dev = cnic_from_netdev(netdev);
5301
5302         if (!dev && (event == NETDEV_REGISTER || event == NETDEV_UP)) {
5303                 /* Check for the hot-plug device */
5304                 dev = is_cnic_dev(netdev);
5305                 if (dev) {
5306                         new_dev = 1;
5307                         cnic_hold(dev);
5308                 }
5309         }
5310         if (dev) {
5311                 struct cnic_local *cp = dev->cnic_priv;
5312
5313                 if (new_dev)
5314                         cnic_ulp_init(dev);
5315                 else if (event == NETDEV_UNREGISTER)
5316                         cnic_ulp_exit(dev);
5317
5318                 if (event == NETDEV_UP) {
5319                         if (cnic_register_netdev(dev) != 0) {
5320                                 cnic_put(dev);
5321                                 goto done;
5322                         }
5323                         if (!cnic_start_hw(dev))
5324                                 cnic_ulp_start(dev);
5325                 }
5326
5327                 rcu_read_lock();
5328                 for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
5329                         struct cnic_ulp_ops *ulp_ops;
5330                         void *ctx;
5331
5332                         ulp_ops = rcu_dereference(cp->ulp_ops[if_type]);
5333                         if (!ulp_ops || !ulp_ops->indicate_netevent)
5334                                 continue;
5335
5336                         ctx = cp->ulp_handle[if_type];
5337
5338                         ulp_ops->indicate_netevent(ctx, event);
5339                 }
5340                 rcu_read_unlock();
5341
5342                 if (event == NETDEV_GOING_DOWN) {
5343                         cnic_ulp_stop(dev);
5344                         cnic_stop_hw(dev);
5345                         cnic_unregister_netdev(dev);
5346                 } else if (event == NETDEV_UNREGISTER) {
5347                         write_lock(&cnic_dev_lock);
5348                         list_del_init(&dev->list);
5349                         write_unlock(&cnic_dev_lock);
5350
5351                         cnic_put(dev);
5352                         cnic_free_dev(dev);
5353                         goto done;
5354                 }
5355                 cnic_put(dev);
5356         }
5357 done:
5358         return NOTIFY_DONE;
5359 }
5360
5361 static struct notifier_block cnic_netdev_notifier = {
5362         .notifier_call = cnic_netdev_event
5363 };
5364
5365 static void cnic_release(void)
5366 {
5367         struct cnic_dev *dev;
5368         struct cnic_uio_dev *udev;
5369
5370         while (!list_empty(&cnic_dev_list)) {
5371                 dev = list_entry(cnic_dev_list.next, struct cnic_dev, list);
5372                 if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5373                         cnic_ulp_stop(dev);
5374                         cnic_stop_hw(dev);
5375                 }
5376
5377                 cnic_ulp_exit(dev);
5378                 cnic_unregister_netdev(dev);
5379                 list_del_init(&dev->list);
5380                 cnic_free_dev(dev);
5381         }
5382         while (!list_empty(&cnic_udev_list)) {
5383                 udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
5384                                   list);
5385                 cnic_free_uio(udev);
5386         }
5387 }
5388
5389 static int __init cnic_init(void)
5390 {
5391         int rc = 0;
5392
5393         pr_info("%s", version);
5394
5395         rc = register_netdevice_notifier(&cnic_netdev_notifier);
5396         if (rc) {
5397                 cnic_release();
5398                 return rc;
5399         }
5400
5401         cnic_wq = create_singlethread_workqueue("cnic_wq");
5402         if (!cnic_wq) {
5403                 cnic_release();
5404                 unregister_netdevice_notifier(&cnic_netdev_notifier);
5405                 return -ENOMEM;
5406         }
5407
5408         return 0;
5409 }
5410
5411 static void __exit cnic_exit(void)
5412 {
5413         unregister_netdevice_notifier(&cnic_netdev_notifier);
5414         cnic_release();
5415         destroy_workqueue(cnic_wq);
5416 }
5417
5418 module_init(cnic_init);
5419 module_exit(cnic_exit);