drivers/net/cnic.c

   1 /* cnic.c: Broadcom CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2011 Broadcom Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation.
   8  *
   9  * Original skeleton written by: John(Zongxi) Chen (zongxi@broadcom.com)
  10  * Modified and maintained by: Michael Chan <mchan@broadcom.com>
  11  */
  12
  13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  14
  15 #include <linux/module.h>
  16
  17 #include <linux/kernel.h>
  18 #include <linux/errno.h>
  19 #include <linux/list.h>
  20 #include <linux/slab.h>
  21 #include <linux/pci.h>
  22 #include <linux/init.h>
  23 #include <linux/netdevice.h>
  24 #include <linux/uio_driver.h>
  25 #include <linux/in.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/delay.h>
  28 #include <linux/ethtool.h>
  29 #include <linux/if_vlan.h>
  30 #include <linux/prefetch.h>
  31 #include <linux/random.h>
  32 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  33 #define BCM_VLAN 1
  34 #endif
  35 #include <net/ip.h>
  36 #include <net/tcp.h>
  37 #include <net/route.h>
  38 #include <net/ipv6.h>
  39 #include <net/ip6_route.h>
  40 #include <net/ip6_checksum.h>
  41 #include <scsi/iscsi_if.h>
  42
  43 #include "cnic_if.h"
  44 #include "bnx2.h"
  45 #include "bnx2x/bnx2x_reg.h"
  46 #include "bnx2x/bnx2x_fw_defs.h"
  47 #include "bnx2x/bnx2x_hsi.h"
  48 #include "../scsi/bnx2i/57xx_iscsi_constants.h"
  49 #include "../scsi/bnx2i/57xx_iscsi_hsi.h"
  50 #include "cnic.h"
  51 #include "cnic_defs.h"
  52
  53 #define DRV_MODULE_NAME         "cnic"
  54
  55 static char version[] __devinitdata =
  56         "Broadcom NetXtreme II CNIC Driver " DRV_MODULE_NAME " v" CNIC_MODULE_VERSION " (" CNIC_MODULE_RELDATE ")\n";
  57
  58 MODULE_AUTHOR("Michael Chan <mchan@broadcom.com> and John(Zongxi) "
  59               "Chen (zongxi@broadcom.com");
  60 MODULE_DESCRIPTION("Broadcom NetXtreme II CNIC Driver");
  61 MODULE_LICENSE("GPL");
  62 MODULE_VERSION(CNIC_MODULE_VERSION);
  63
  64 /* cnic_dev_list modifications are protected by both rtnl and cnic_dev_lock */
  65 static LIST_HEAD(cnic_dev_list);
  66 static LIST_HEAD(cnic_udev_list);
  67 static DEFINE_RWLOCK(cnic_dev_lock);
  68 static DEFINE_MUTEX(cnic_lock);
  69
  70 static struct cnic_ulp_ops __rcu *cnic_ulp_tbl[MAX_CNIC_ULP_TYPE];
  71
  72 /* helper function, assuming cnic_lock is held */
  73 static inline struct cnic_ulp_ops *cnic_ulp_tbl_prot(int type)
  74 {
  75         return rcu_dereference_protected(cnic_ulp_tbl[type],
  76                                          lockdep_is_held(&cnic_lock));
  77 }
  78
  79 static int cnic_service_bnx2(void *, void *);
  80 static int cnic_service_bnx2x(void *, void *);
  81 static int cnic_ctl(void *, struct cnic_ctl_info *);
  82
  83 static struct cnic_ops cnic_bnx2_ops = {
  84         .cnic_owner     = THIS_MODULE,
  85         .cnic_handler   = cnic_service_bnx2,
  86         .cnic_ctl       = cnic_ctl,
  87 };
  88
  89 static struct cnic_ops cnic_bnx2x_ops = {
  90         .cnic_owner     = THIS_MODULE,
  91         .cnic_handler   = cnic_service_bnx2x,
  92         .cnic_ctl       = cnic_ctl,
  93 };
  94
  95 static struct workqueue_struct *cnic_wq;
  96
  97 static void cnic_shutdown_rings(struct cnic_dev *);
  98 static void cnic_init_rings(struct cnic_dev *);
  99 static int cnic_cm_set_pg(struct cnic_sock *);
 100
 101 static int cnic_uio_open(struct uio_info *uinfo, struct inode *inode)
 102 {
 103         struct cnic_uio_dev *udev = uinfo->priv;
 104         struct cnic_dev *dev;
 105
 106         if (!capable(CAP_NET_ADMIN))
 107                 return -EPERM;
 108
 109         if (udev->uio_dev != -1)
 110                 return -EBUSY;
 111
 112         rtnl_lock();
 113         dev = udev->dev;
 114
 115         if (!dev || !test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
 116                 rtnl_unlock();
 117                 return -ENODEV;
 118         }
 119
 120         udev->uio_dev = iminor(inode);
 121
 122         cnic_shutdown_rings(dev);
 123         cnic_init_rings(dev);
 124         rtnl_unlock();
 125
 126         return 0;
 127 }
 128
 129 static int cnic_uio_close(struct uio_info *uinfo, struct inode *inode)
 130 {
 131         struct cnic_uio_dev *udev = uinfo->priv;
 132
 133         udev->uio_dev = -1;
 134         return 0;
 135 }
 136
 137 static inline void cnic_hold(struct cnic_dev *dev)
 138 {
 139         atomic_inc(&dev->ref_count);
 140 }
 141
 142 static inline void cnic_put(struct cnic_dev *dev)
 143 {
 144         atomic_dec(&dev->ref_count);
 145 }
 146
 147 static inline void csk_hold(struct cnic_sock *csk)
 148 {
 149         atomic_inc(&csk->ref_count);
 150 }
 151
 152 static inline void csk_put(struct cnic_sock *csk)
 153 {
 154         atomic_dec(&csk->ref_count);
 155 }
 156
 157 static struct cnic_dev *cnic_from_netdev(struct net_device *netdev)
 158 {
 159         struct cnic_dev *cdev;
 160
 161         read_lock(&cnic_dev_lock);
 162         list_for_each_entry(cdev, &cnic_dev_list, list) {
 163                 if (netdev == cdev->netdev) {
 164                         cnic_hold(cdev);
 165                         read_unlock(&cnic_dev_lock);
 166                         return cdev;
 167                 }
 168         }
 169         read_unlock(&cnic_dev_lock);
 170         return NULL;
 171 }
 172
 173 static inline void ulp_get(struct cnic_ulp_ops *ulp_ops)
 174 {
 175         atomic_inc(&ulp_ops->ref_count);
 176 }
 177
 178 static inline void ulp_put(struct cnic_ulp_ops *ulp_ops)
 179 {
 180         atomic_dec(&ulp_ops->ref_count);
 181 }
 182
 183 static void cnic_ctx_wr(struct cnic_dev *dev, u32 cid_addr, u32 off, u32 val)
 184 {
 185         struct cnic_local *cp = dev->cnic_priv;
 186         struct cnic_eth_dev *ethdev = cp->ethdev;
 187         struct drv_ctl_info info;
 188         struct drv_ctl_io *io = &info.data.io;
 189
 190         info.cmd = DRV_CTL_CTX_WR_CMD;
 191         io->cid_addr = cid_addr;
 192         io->offset = off;
 193         io->data = val;
 194         ethdev->drv_ctl(dev->netdev, &info);
 195 }
 196
 197 static void cnic_ctx_tbl_wr(struct cnic_dev *dev, u32 off, dma_addr_t addr)
 198 {
 199         struct cnic_local *cp = dev->cnic_priv;
 200         struct cnic_eth_dev *ethdev = cp->ethdev;
 201         struct drv_ctl_info info;
 202         struct drv_ctl_io *io = &info.data.io;
 203
 204         info.cmd = DRV_CTL_CTXTBL_WR_CMD;
 205         io->offset = off;
 206         io->dma_addr = addr;
 207         ethdev->drv_ctl(dev->netdev, &info);
 208 }
 209
 210 static void cnic_ring_ctl(struct cnic_dev *dev, u32 cid, u32 cl_id, int start)
 211 {
 212         struct cnic_local *cp = dev->cnic_priv;
 213         struct cnic_eth_dev *ethdev = cp->ethdev;
 214         struct drv_ctl_info info;
 215         struct drv_ctl_l2_ring *ring = &info.data.ring;
 216
 217         if (start)
 218                 info.cmd = DRV_CTL_START_L2_CMD;
 219         else
 220                 info.cmd = DRV_CTL_STOP_L2_CMD;
 221
 222         ring->cid = cid;
 223         ring->client_id = cl_id;
 224         ethdev->drv_ctl(dev->netdev, &info);
 225 }
 226
 227 static void cnic_reg_wr_ind(struct cnic_dev *dev, u32 off, u32 val)
 228 {
 229         struct cnic_local *cp = dev->cnic_priv;
 230         struct cnic_eth_dev *ethdev = cp->ethdev;
 231         struct drv_ctl_info info;
 232         struct drv_ctl_io *io = &info.data.io;
 233
 234         info.cmd = DRV_CTL_IO_WR_CMD;
 235         io->offset = off;
 236         io->data = val;
 237         ethdev->drv_ctl(dev->netdev, &info);
 238 }
 239
 240 static u32 cnic_reg_rd_ind(struct cnic_dev *dev, u32 off)
 241 {
 242         struct cnic_local *cp = dev->cnic_priv;
 243         struct cnic_eth_dev *ethdev = cp->ethdev;
 244         struct drv_ctl_info info;
 245         struct drv_ctl_io *io = &info.data.io;
 246
 247         info.cmd = DRV_CTL_IO_RD_CMD;
 248         io->offset = off;
 249         ethdev->drv_ctl(dev->netdev, &info);
 250         return io->data;
 251 }
 252
 253 static int cnic_in_use(struct cnic_sock *csk)
 254 {
 255         return test_bit(SK_F_INUSE, &csk->flags);
 256 }
 257
 258 static void cnic_spq_completion(struct cnic_dev *dev, int cmd, u32 count)
 259 {
 260         struct cnic_local *cp = dev->cnic_priv;
 261         struct cnic_eth_dev *ethdev = cp->ethdev;
 262         struct drv_ctl_info info;
 263
 264         info.cmd = cmd;
 265         info.data.credit.credit_count = count;
 266         ethdev->drv_ctl(dev->netdev, &info);
 267 }
 268
 269 static int cnic_get_l5_cid(struct cnic_local *cp, u32 cid, u32 *l5_cid)
 270 {
 271         u32 i;
 272
 273         for (i = 0; i < cp->max_cid_space; i++) {
 274                 if (cp->ctx_tbl[i].cid == cid) {
 275                         *l5_cid = i;
 276                         return 0;
 277                 }
 278         }
 279         return -EINVAL;
 280 }
 281
 282 static int cnic_send_nlmsg(struct cnic_local *cp, u32 type,
 283                            struct cnic_sock *csk)
 284 {
 285         struct iscsi_path path_req;
 286         char *buf = NULL;
 287         u16 len = 0;
 288         u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 289         struct cnic_ulp_ops *ulp_ops;
 290         struct cnic_uio_dev *udev = cp->udev;
 291         int rc = 0, retry = 0;
 292
 293         if (!udev || udev->uio_dev == -1)
 294                 return -ENODEV;
 295
 296         if (csk) {
 297                 len = sizeof(path_req);
 298                 buf = (char *) &path_req;
 299                 memset(&path_req, 0, len);
 300
 301                 msg_type = ISCSI_KEVENT_PATH_REQ;
 302                 path_req.handle = (u64) csk->l5_cid;
 303                 if (test_bit(SK_F_IPV6, &csk->flags)) {
 304                         memcpy(&path_req.dst.v6_addr, &csk->dst_ip[0],
 305                                sizeof(struct in6_addr));
 306                         path_req.ip_addr_len = 16;
 307                 } else {
 308                         memcpy(&path_req.dst.v4_addr, &csk->dst_ip[0],
 309                                sizeof(struct in_addr));
 310                         path_req.ip_addr_len = 4;
 311                 }
 312                 path_req.vlan_id = csk->vlan_id;
 313                 path_req.pmtu = csk->mtu;
 314         }
 315
 316         while (retry < 3) {
 317                 rc = 0;
 318                 rcu_read_lock();
 319                 ulp_ops = rcu_dereference(cnic_ulp_tbl[CNIC_ULP_ISCSI]);
 320                 if (ulp_ops)
 321                         rc = ulp_ops->iscsi_nl_send_msg(
 322                                 cp->ulp_handle[CNIC_ULP_ISCSI],
 323                                 msg_type, buf, len);
 324                 rcu_read_unlock();
 325                 if (rc == 0 || msg_type != ISCSI_KEVENT_PATH_REQ)
 326                         break;
 327
 328                 msleep(100);
 329                 retry++;
 330         }
 331         return rc;
 332 }
 333
 334 static void cnic_cm_upcall(struct cnic_local *, struct cnic_sock *, u8);
 335
 336 static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 337                                   char *buf, u16 len)
 338 {
 339         int rc = -EINVAL;
 340
 341         switch (msg_type) {
 342         case ISCSI_UEVENT_PATH_UPDATE: {
 343                 struct cnic_local *cp;
 344                 u32 l5_cid;
 345                 struct cnic_sock *csk;
 346                 struct iscsi_path *path_resp;
 347
 348                 if (len < sizeof(*path_resp))
 349                         break;
 350
 351                 path_resp = (struct iscsi_path *) buf;
 352                 cp = dev->cnic_priv;
 353                 l5_cid = (u32) path_resp->handle;
 354                 if (l5_cid >= MAX_CM_SK_TBL_SZ)
 355                         break;
 356
 357                 rcu_read_lock();
 358                 if (!rcu_dereference(cp->ulp_ops[CNIC_ULP_L4])) {
 359                         rc = -ENODEV;
 360                         rcu_read_unlock();
 361                         break;
 362                 }
 363                 csk = &cp->csk_tbl[l5_cid];
 364                 csk_hold(csk);
 365                 if (cnic_in_use(csk) &&
 366                     test_bit(SK_F_CONNECT_START, &csk->flags)) {
 367
 368                         memcpy(csk->ha, path_resp->mac_addr, 6);
 369                         if (test_bit(SK_F_IPV6, &csk->flags))
 370                                 memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 371                                        sizeof(struct in6_addr));
 372                         else
 373                                 memcpy(&csk->src_ip[0], &path_resp->src.v4_addr,
 374                                        sizeof(struct in_addr));
 375
 376                         if (is_valid_ether_addr(csk->ha)) {
 377                                 cnic_cm_set_pg(csk);
 378                         } else if (!test_bit(SK_F_OFFLD_SCHED, &csk->flags) &&
 379                                 !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 380
 381                                 cnic_cm_upcall(cp, csk,
 382                                         L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
 383                                 clear_bit(SK_F_CONNECT_START, &csk->flags);
 384                         }
 385                 }
 386                 csk_put(csk);
 387                 rcu_read_unlock();
 388                 rc = 0;
 389         }
 390         }
 391
 392         return rc;
 393 }
 394
 395 static int cnic_offld_prep(struct cnic_sock *csk)
 396 {
 397         if (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 398                 return 0;
 399
 400         if (!test_bit(SK_F_CONNECT_START, &csk->flags)) {
 401                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
 402                 return 0;
 403         }
 404
 405         return 1;
 406 }
 407
 408 static int cnic_close_prep(struct cnic_sock *csk)
 409 {
 410         clear_bit(SK_F_CONNECT_START, &csk->flags);
 411         smp_mb__after_clear_bit();
 412
 413         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 414                 while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 415                         msleep(1);
 416
 417                 return 1;
 418         }
 419         return 0;
 420 }
 421
 422 static int cnic_abort_prep(struct cnic_sock *csk)
 423 {
 424         clear_bit(SK_F_CONNECT_START, &csk->flags);
 425         smp_mb__after_clear_bit();
 426
 427         while (test_and_set_bit(SK_F_OFFLD_SCHED, &csk->flags))
 428                 msleep(1);
 429
 430         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
 431                 csk->state = L4_KCQE_OPCODE_VALUE_RESET_COMP;
 432                 return 1;
 433         }
 434
 435         return 0;
 436 }
 437
 438 int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops)
 439 {
 440         struct cnic_dev *dev;
 441
 442         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 443                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 444                 return -EINVAL;
 445         }
 446         mutex_lock(&cnic_lock);
 447         if (cnic_ulp_tbl_prot(ulp_type)) {
 448                 pr_err("%s: Type %d has already been registered\n",
 449                        __func__, ulp_type);
 450                 mutex_unlock(&cnic_lock);
 451                 return -EBUSY;
 452         }
 453
 454         read_lock(&cnic_dev_lock);
 455         list_for_each_entry(dev, &cnic_dev_list, list) {
 456                 struct cnic_local *cp = dev->cnic_priv;
 457
 458                 clear_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]);
 459         }
 460         read_unlock(&cnic_dev_lock);
 461
 462         atomic_set(&ulp_ops->ref_count, 0);
 463         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], ulp_ops);
 464         mutex_unlock(&cnic_lock);
 465
 466         /* Prevent race conditions with netdev_event */
 467         rtnl_lock();
 468         list_for_each_entry(dev, &cnic_dev_list, list) {
 469                 struct cnic_local *cp = dev->cnic_priv;
 470
 471                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[ulp_type]))
 472                         ulp_ops->cnic_init(dev);
 473         }
 474         rtnl_unlock();
 475
 476         return 0;
 477 }
 478
 479 int cnic_unregister_driver(int ulp_type)
 480 {
 481         struct cnic_dev *dev;
 482         struct cnic_ulp_ops *ulp_ops;
 483         int i = 0;
 484
 485         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 486                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 487                 return -EINVAL;
 488         }
 489         mutex_lock(&cnic_lock);
 490         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 491         if (!ulp_ops) {
 492                 pr_err("%s: Type %d has not been registered\n",
 493                        __func__, ulp_type);
 494                 goto out_unlock;
 495         }
 496         read_lock(&cnic_dev_lock);
 497         list_for_each_entry(dev, &cnic_dev_list, list) {
 498                 struct cnic_local *cp = dev->cnic_priv;
 499
 500                 if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 501                         pr_err("%s: Type %d still has devices registered\n",
 502                                __func__, ulp_type);
 503                         read_unlock(&cnic_dev_lock);
 504                         goto out_unlock;
 505                 }
 506         }
 507         read_unlock(&cnic_dev_lock);
 508
 509         rcu_assign_pointer(cnic_ulp_tbl[ulp_type], NULL);
 510
 511         mutex_unlock(&cnic_lock);
 512         synchronize_rcu();
 513         while ((atomic_read(&ulp_ops->ref_count) != 0) && (i < 20)) {
 514                 msleep(100);
 515                 i++;
 516         }
 517
 518         if (atomic_read(&ulp_ops->ref_count) != 0)
 519                 netdev_warn(dev->netdev, "Failed waiting for ref count to go to zero\n");
 520         return 0;
 521
 522 out_unlock:
 523         mutex_unlock(&cnic_lock);
 524         return -EINVAL;
 525 }
 526
 527 static int cnic_start_hw(struct cnic_dev *);
 528 static void cnic_stop_hw(struct cnic_dev *);
 529
 530 static int cnic_register_device(struct cnic_dev *dev, int ulp_type,
 531                                 void *ulp_ctx)
 532 {
 533         struct cnic_local *cp = dev->cnic_priv;
 534         struct cnic_ulp_ops *ulp_ops;
 535
 536         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 537                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 538                 return -EINVAL;
 539         }
 540         mutex_lock(&cnic_lock);
 541         if (cnic_ulp_tbl_prot(ulp_type) == NULL) {
 542                 pr_err("%s: Driver with type %d has not been registered\n",
 543                        __func__, ulp_type);
 544                 mutex_unlock(&cnic_lock);
 545                 return -EAGAIN;
 546         }
 547         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 548                 pr_err("%s: Type %d has already been registered to this device\n",
 549                        __func__, ulp_type);
 550                 mutex_unlock(&cnic_lock);
 551                 return -EBUSY;
 552         }
 553
 554         clear_bit(ULP_F_START, &cp->ulp_flags[ulp_type]);
 555         cp->ulp_handle[ulp_type] = ulp_ctx;
 556         ulp_ops = cnic_ulp_tbl_prot(ulp_type);
 557         rcu_assign_pointer(cp->ulp_ops[ulp_type], ulp_ops);
 558         cnic_hold(dev);
 559
 560         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
 561                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[ulp_type]))
 562                         ulp_ops->cnic_start(cp->ulp_handle[ulp_type]);
 563
 564         mutex_unlock(&cnic_lock);
 565
 566         return 0;
 567
 568 }
 569 EXPORT_SYMBOL(cnic_register_driver);
 570
 571 static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
 572 {
 573         struct cnic_local *cp = dev->cnic_priv;
 574         int i = 0;
 575
 576         if (ulp_type < 0 || ulp_type >= MAX_CNIC_ULP_TYPE) {
 577                 pr_err("%s: Bad type %d\n", __func__, ulp_type);
 578                 return -EINVAL;
 579         }
 580         mutex_lock(&cnic_lock);
 581         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
 582                 rcu_assign_pointer(cp->ulp_ops[ulp_type], NULL);
 583                 cnic_put(dev);
 584         } else {
 585                 pr_err("%s: device not registered to this ulp type %d\n",
 586                        __func__, ulp_type);
 587                 mutex_unlock(&cnic_lock);
 588                 return -EINVAL;
 589         }
 590         mutex_unlock(&cnic_lock);
 591
 592         if (ulp_type == CNIC_ULP_ISCSI)
 593                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 594
 595         synchronize_rcu();
 596
 597         while (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]) &&
 598                i < 20) {
 599                 msleep(100);
 600                 i++;
 601         }
 602         if (test_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[ulp_type]))
 603                 netdev_warn(dev->netdev, "Failed waiting for ULP up call to complete\n");
 604
 605         return 0;
 606 }
 607 EXPORT_SYMBOL(cnic_unregister_driver);
 608
 609 static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id,
 610                             u32 next)
 611 {
 612         id_tbl->start = start_id;
 613         id_tbl->max = size;
 614         id_tbl->next = next;
 615         spin_lock_init(&id_tbl->lock);
 616         id_tbl->table = kzalloc(DIV_ROUND_UP(size, 32) * 4, GFP_KERNEL);
 617         if (!id_tbl->table)
 618                 return -ENOMEM;
 619
 620         return 0;
 621 }
 622
 623 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 624 {
 625         kfree(id_tbl->table);
 626         id_tbl->table = NULL;
 627 }
 628
 629 static int cnic_alloc_id(struct cnic_id_tbl *id_tbl, u32 id)
 630 {
 631         int ret = -1;
 632
 633         id -= id_tbl->start;
 634         if (id >= id_tbl->max)
 635                 return ret;
 636
 637         spin_lock(&id_tbl->lock);
 638         if (!test_bit(id, id_tbl->table)) {
 639                 set_bit(id, id_tbl->table);
 640                 ret = 0;
 641         }
 642         spin_unlock(&id_tbl->lock);
 643         return ret;
 644 }
 645
 646 /* Returns -1 if not successful */
 647 static u32 cnic_alloc_new_id(struct cnic_id_tbl *id_tbl)
 648 {
 649         u32 id;
 650
 651         spin_lock(&id_tbl->lock);
 652         id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
 653         if (id >= id_tbl->max) {
 654                 id = -1;
 655                 if (id_tbl->next != 0) {
 656                         id = find_first_zero_bit(id_tbl->table, id_tbl->next);
 657                         if (id >= id_tbl->next)
 658                                 id = -1;
 659                 }
 660         }
 661
 662         if (id < id_tbl->max) {
 663                 set_bit(id, id_tbl->table);
 664                 id_tbl->next = (id + 1) & (id_tbl->max - 1);
 665                 id += id_tbl->start;
 666         }
 667
 668         spin_unlock(&id_tbl->lock);
 669
 670         return id;
 671 }
 672
 673 static void cnic_free_id(struct cnic_id_tbl *id_tbl, u32 id)
 674 {
 675         if (id == -1)
 676                 return;
 677
 678         id -= id_tbl->start;
 679         if (id >= id_tbl->max)
 680                 return;
 681
 682         clear_bit(id, id_tbl->table);
 683 }
 684
 685 static void cnic_free_dma(struct cnic_dev *dev, struct cnic_dma *dma)
 686 {
 687         int i;
 688
 689         if (!dma->pg_arr)
 690                 return;
 691
 692         for (i = 0; i < dma->num_pages; i++) {
 693                 if (dma->pg_arr[i]) {
 694                         dma_free_coherent(&dev->pcidev->dev, BCM_PAGE_SIZE,
 695                                           dma->pg_arr[i], dma->pg_map_arr[i]);
 696                         dma->pg_arr[i] = NULL;
 697                 }
 698         }
 699         if (dma->pgtbl) {
 700                 dma_free_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 701                                   dma->pgtbl, dma->pgtbl_map);
 702                 dma->pgtbl = NULL;
 703         }
 704         kfree(dma->pg_arr);
 705         dma->pg_arr = NULL;
 706         dma->num_pages = 0;
 707 }
 708
 709 static void cnic_setup_page_tbl(struct cnic_dev *dev, struct cnic_dma *dma)
 710 {
 711         int i;
 712         __le32 *page_table = (__le32 *) dma->pgtbl;
 713
 714         for (i = 0; i < dma->num_pages; i++) {
 715                 /* Each entry needs to be in big endian format. */
 716                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 717                 page_table++;
 718                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 719                 page_table++;
 720         }
 721 }
 722
 723 static void cnic_setup_page_tbl_le(struct cnic_dev *dev, struct cnic_dma *dma)
 724 {
 725         int i;
 726         __le32 *page_table = (__le32 *) dma->pgtbl;
 727
 728         for (i = 0; i < dma->num_pages; i++) {
 729                 /* Each entry needs to be in little endian format. */
 730                 *page_table = cpu_to_le32(dma->pg_map_arr[i] & 0xffffffff);
 731                 page_table++;
 732                 *page_table = cpu_to_le32((u64) dma->pg_map_arr[i] >> 32);
 733                 page_table++;
 734         }
 735 }
 736
 737 static int cnic_alloc_dma(struct cnic_dev *dev, struct cnic_dma *dma,
 738                           int pages, int use_pg_tbl)
 739 {
 740         int i, size;
 741         struct cnic_local *cp = dev->cnic_priv;
 742
 743         size = pages * (sizeof(void *) + sizeof(dma_addr_t));
 744         dma->pg_arr = kzalloc(size, GFP_ATOMIC);
 745         if (dma->pg_arr == NULL)
 746                 return -ENOMEM;
 747
 748         dma->pg_map_arr = (dma_addr_t *) (dma->pg_arr + pages);
 749         dma->num_pages = pages;
 750
 751         for (i = 0; i < pages; i++) {
 752                 dma->pg_arr[i] = dma_alloc_coherent(&dev->pcidev->dev,
 753                                                     BCM_PAGE_SIZE,
 754                                                     &dma->pg_map_arr[i],
 755                                                     GFP_ATOMIC);
 756                 if (dma->pg_arr[i] == NULL)
 757                         goto error;
 758         }
 759         if (!use_pg_tbl)
 760                 return 0;
 761
 762         dma->pgtbl_size = ((pages * 8) + BCM_PAGE_SIZE - 1) &
 763                           ~(BCM_PAGE_SIZE - 1);
 764         dma->pgtbl = dma_alloc_coherent(&dev->pcidev->dev, dma->pgtbl_size,
 765                                         &dma->pgtbl_map, GFP_ATOMIC);
 766         if (dma->pgtbl == NULL)
 767                 goto error;
 768
 769         cp->setup_pgtbl(dev, dma);
 770
 771         return 0;
 772
 773 error:
 774         cnic_free_dma(dev, dma);
 775         return -ENOMEM;
 776 }
 777
 778 static void cnic_free_context(struct cnic_dev *dev)
 779 {
 780         struct cnic_local *cp = dev->cnic_priv;
 781         int i;
 782
 783         for (i = 0; i < cp->ctx_blks; i++) {
 784                 if (cp->ctx_arr[i].ctx) {
 785                         dma_free_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
 786                                           cp->ctx_arr[i].ctx,
 787                                           cp->ctx_arr[i].mapping);
 788                         cp->ctx_arr[i].ctx = NULL;
 789                 }
 790         }
 791 }
 792
 793 static void __cnic_free_uio(struct cnic_uio_dev *udev)
 794 {
 795         uio_unregister_device(&udev->cnic_uinfo);
 796
 797         if (udev->l2_buf) {
 798                 dma_free_coherent(&udev->pdev->dev, udev->l2_buf_size,
 799                                   udev->l2_buf, udev->l2_buf_map);
 800                 udev->l2_buf = NULL;
 801         }
 802
 803         if (udev->l2_ring) {
 804                 dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
 805                                   udev->l2_ring, udev->l2_ring_map);
 806                 udev->l2_ring = NULL;
 807         }
 808
 809         pci_dev_put(udev->pdev);
 810         kfree(udev);
 811 }
 812
 813 static void cnic_free_uio(struct cnic_uio_dev *udev)
 814 {
 815         if (!udev)
 816                 return;
 817
 818         write_lock(&cnic_dev_lock);
 819         list_del_init(&udev->list);
 820         write_unlock(&cnic_dev_lock);
 821         __cnic_free_uio(udev);
 822 }
 823
 824 static void cnic_free_resc(struct cnic_dev *dev)
 825 {
 826         struct cnic_local *cp = dev->cnic_priv;
 827         struct cnic_uio_dev *udev = cp->udev;
 828
 829         if (udev) {
 830                 udev->dev = NULL;
 831                 cp->udev = NULL;
 832         }
 833
 834         cnic_free_context(dev);
 835         kfree(cp->ctx_arr);
 836         cp->ctx_arr = NULL;
 837         cp->ctx_blks = 0;
 838
 839         cnic_free_dma(dev, &cp->gbl_buf_info);
 840         cnic_free_dma(dev, &cp->kwq_info);
 841         cnic_free_dma(dev, &cp->kwq_16_data_info);
 842         cnic_free_dma(dev, &cp->kcq2.dma);
 843         cnic_free_dma(dev, &cp->kcq1.dma);
 844         kfree(cp->iscsi_tbl);
 845         cp->iscsi_tbl = NULL;
 846         kfree(cp->ctx_tbl);
 847         cp->ctx_tbl = NULL;
 848
 849         cnic_free_id_tbl(&cp->fcoe_cid_tbl);
 850         cnic_free_id_tbl(&cp->cid_tbl);
 851 }
 852
 853 static int cnic_alloc_context(struct cnic_dev *dev)
 854 {
 855         struct cnic_local *cp = dev->cnic_priv;
 856
 857         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
 858                 int i, k, arr_size;
 859
 860                 cp->ctx_blk_size = BCM_PAGE_SIZE;
 861                 cp->cids_per_blk = BCM_PAGE_SIZE / 128;
 862                 arr_size = BNX2_MAX_CID / cp->cids_per_blk *
 863                            sizeof(struct cnic_ctx);
 864                 cp->ctx_arr = kzalloc(arr_size, GFP_KERNEL);
 865                 if (cp->ctx_arr == NULL)
 866                         return -ENOMEM;
 867
 868                 k = 0;
 869                 for (i = 0; i < 2; i++) {
 870                         u32 j, reg, off, lo, hi;
 871
 872                         if (i == 0)
 873                                 off = BNX2_PG_CTX_MAP;
 874                         else
 875                                 off = BNX2_ISCSI_CTX_MAP;
 876
 877                         reg = cnic_reg_rd_ind(dev, off);
 878                         lo = reg >> 16;
 879                         hi = reg & 0xffff;
 880                         for (j = lo; j < hi; j += cp->cids_per_blk, k++)
 881                                 cp->ctx_arr[k].cid = j;
 882                 }
 883
 884                 cp->ctx_blks = k;
 885                 if (cp->ctx_blks >= (BNX2_MAX_CID / cp->cids_per_blk)) {
 886                         cp->ctx_blks = 0;
 887                         return -ENOMEM;
 888                 }
 889
 890                 for (i = 0; i < cp->ctx_blks; i++) {
 891                         cp->ctx_arr[i].ctx =
 892                                 dma_alloc_coherent(&dev->pcidev->dev,
 893                                                    BCM_PAGE_SIZE,
 894                                                    &cp->ctx_arr[i].mapping,
 895                                                    GFP_KERNEL);
 896                         if (cp->ctx_arr[i].ctx == NULL)
 897                                 return -ENOMEM;
 898                 }
 899         }
 900         return 0;
 901 }
 902
 903 static u16 cnic_bnx2_next_idx(u16 idx)
 904 {
 905         return idx + 1;
 906 }
 907
 908 static u16 cnic_bnx2_hw_idx(u16 idx)
 909 {
 910         return idx;
 911 }
 912
 913 static u16 cnic_bnx2x_next_idx(u16 idx)
 914 {
 915         idx++;
 916         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 917                 idx++;
 918
 919         return idx;
 920 }
 921
 922 static u16 cnic_bnx2x_hw_idx(u16 idx)
 923 {
 924         if ((idx & MAX_KCQE_CNT) == MAX_KCQE_CNT)
 925                 idx++;
 926         return idx;
 927 }
 928
 929 static int cnic_alloc_kcq(struct cnic_dev *dev, struct kcq_info *info,
 930                           bool use_pg_tbl)
 931 {
 932         int err, i, use_page_tbl = 0;
 933         struct kcqe **kcq;
 934
 935         if (use_pg_tbl)
 936                 use_page_tbl = 1;
 937
 938         err = cnic_alloc_dma(dev, &info->dma, KCQ_PAGE_CNT, use_page_tbl);
 939         if (err)
 940                 return err;
 941
 942         kcq = (struct kcqe **) info->dma.pg_arr;
 943         info->kcq = kcq;
 944
 945         info->next_idx = cnic_bnx2_next_idx;
 946         info->hw_idx = cnic_bnx2_hw_idx;
 947         if (use_pg_tbl)
 948                 return 0;
 949
 950         info->next_idx = cnic_bnx2x_next_idx;
 951         info->hw_idx = cnic_bnx2x_hw_idx;
 952
 953         for (i = 0; i < KCQ_PAGE_CNT; i++) {
 954                 struct bnx2x_bd_chain_next *next =
 955                         (struct bnx2x_bd_chain_next *) &kcq[i][MAX_KCQE_CNT];
 956                 int j = i + 1;
 957
 958                 if (j >= KCQ_PAGE_CNT)
 959                         j = 0;
 960                 next->addr_hi = (u64) info->dma.pg_map_arr[j] >> 32;
 961                 next->addr_lo = info->dma.pg_map_arr[j] & 0xffffffff;
 962         }
 963         return 0;
 964 }
 965
 966 static int cnic_alloc_uio_rings(struct cnic_dev *dev, int pages)
 967 {
 968         struct cnic_local *cp = dev->cnic_priv;
 969         struct cnic_uio_dev *udev;
 970
 971         read_lock(&cnic_dev_lock);
 972         list_for_each_entry(udev, &cnic_udev_list, list) {
 973                 if (udev->pdev == dev->pcidev) {
 974                         udev->dev = dev;
 975                         cp->udev = udev;
 976                         read_unlock(&cnic_dev_lock);
 977                         return 0;
 978                 }
 979         }
 980         read_unlock(&cnic_dev_lock);
 981
 982         udev = kzalloc(sizeof(struct cnic_uio_dev), GFP_ATOMIC);
 983         if (!udev)
 984                 return -ENOMEM;
 985
 986         udev->uio_dev = -1;
 987
 988         udev->dev = dev;
 989         udev->pdev = dev->pcidev;
 990         udev->l2_ring_size = pages * BCM_PAGE_SIZE;
 991         udev->l2_ring = dma_alloc_coherent(&udev->pdev->dev, udev->l2_ring_size,
 992                                            &udev->l2_ring_map,
 993                                            GFP_KERNEL | __GFP_COMP);
 994         if (!udev->l2_ring)
 995                 goto err_udev;
 996
 997         udev->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
 998         udev->l2_buf_size = PAGE_ALIGN(udev->l2_buf_size);
 999         udev->l2_buf = dma_alloc_coherent(&udev->pdev->dev, udev->l2_buf_size,
1000                                           &udev->l2_buf_map,
1001                                           GFP_KERNEL | __GFP_COMP);
1002         if (!udev->l2_buf)
1003                 goto err_dma;
1004
1005         write_lock(&cnic_dev_lock);
1006         list_add(&udev->list, &cnic_udev_list);
1007         write_unlock(&cnic_dev_lock);
1008
1009         pci_dev_get(udev->pdev);
1010
1011         cp->udev = udev;
1012
1013         return 0;
1014  err_dma:
1015         dma_free_coherent(&udev->pdev->dev, udev->l2_ring_size,
1016                           udev->l2_ring, udev->l2_ring_map);
1017  err_udev:
1018         kfree(udev);
1019         return -ENOMEM;
1020 }
1021
1022 static int cnic_init_uio(struct cnic_dev *dev)
1023 {
1024         struct cnic_local *cp = dev->cnic_priv;
1025         struct cnic_uio_dev *udev = cp->udev;
1026         struct uio_info *uinfo;
1027         int ret = 0;
1028
1029         if (!udev)
1030                 return -ENOMEM;
1031
1032         uinfo = &udev->cnic_uinfo;
1033
1034         uinfo->mem[0].addr = dev->netdev->base_addr;
1035         uinfo->mem[0].internal_addr = dev->regview;
1036         uinfo->mem[0].size = dev->netdev->mem_end - dev->netdev->mem_start;
1037         uinfo->mem[0].memtype = UIO_MEM_PHYS;
1038
1039         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
1040                 uinfo->mem[1].addr = (unsigned long) cp->status_blk.gen &
1041                                         PAGE_MASK;
1042                 if (cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
1043                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE * 9;
1044                 else
1045                         uinfo->mem[1].size = BNX2_SBLK_MSIX_ALIGN_SIZE;
1046
1047                 uinfo->name = "bnx2_cnic";
1048         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1049                 uinfo->mem[1].addr = (unsigned long) cp->bnx2x_def_status_blk &
1050                         PAGE_MASK;
1051                 uinfo->mem[1].size = sizeof(*cp->bnx2x_def_status_blk);
1052
1053                 uinfo->name = "bnx2x_cnic";
1054         }
1055
1056         uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
1057
1058         uinfo->mem[2].addr = (unsigned long) udev->l2_ring;
1059         uinfo->mem[2].size = udev->l2_ring_size;
1060         uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
1061
1062         uinfo->mem[3].addr = (unsigned long) udev->l2_buf;
1063         uinfo->mem[3].size = udev->l2_buf_size;
1064         uinfo->mem[3].memtype = UIO_MEM_LOGICAL;
1065
1066         uinfo->version = CNIC_MODULE_VERSION;
1067         uinfo->irq = UIO_IRQ_CUSTOM;
1068
1069         uinfo->open = cnic_uio_open;
1070         uinfo->release = cnic_uio_close;
1071
1072         if (udev->uio_dev == -1) {
1073                 if (!uinfo->priv) {
1074                         uinfo->priv = udev;
1075
1076                         ret = uio_register_device(&udev->pdev->dev, uinfo);
1077                 }
1078         } else {
1079                 cnic_init_rings(dev);
1080         }
1081
1082         return ret;
1083 }
1084
1085 static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
1086 {
1087         struct cnic_local *cp = dev->cnic_priv;
1088         int ret;
1089
1090         ret = cnic_alloc_dma(dev, &cp->kwq_info, KWQ_PAGE_CNT, 1);
1091         if (ret)
1092                 goto error;
1093         cp->kwq = (struct kwqe **) cp->kwq_info.pg_arr;
1094
1095         ret = cnic_alloc_kcq(dev, &cp->kcq1, true);
1096         if (ret)
1097                 goto error;
1098
1099         ret = cnic_alloc_context(dev);
1100         if (ret)
1101                 goto error;
1102
1103         ret = cnic_alloc_uio_rings(dev, 2);
1104         if (ret)
1105                 goto error;
1106
1107         ret = cnic_init_uio(dev);
1108         if (ret)
1109                 goto error;
1110
1111         return 0;
1112
1113 error:
1114         cnic_free_resc(dev);
1115         return ret;
1116 }
1117
1118 static int cnic_alloc_bnx2x_context(struct cnic_dev *dev)
1119 {
1120         struct cnic_local *cp = dev->cnic_priv;
1121         int ctx_blk_size = cp->ethdev->ctx_blk_size;
1122         int total_mem, blks, i;
1123
1124         total_mem = BNX2X_CONTEXT_MEM_SIZE * cp->max_cid_space;
1125         blks = total_mem / ctx_blk_size;
1126         if (total_mem % ctx_blk_size)
1127                 blks++;
1128
1129         if (blks > cp->ethdev->ctx_tbl_len)
1130                 return -ENOMEM;
1131
1132         cp->ctx_arr = kcalloc(blks, sizeof(struct cnic_ctx), GFP_KERNEL);
1133         if (cp->ctx_arr == NULL)
1134                 return -ENOMEM;
1135
1136         cp->ctx_blks = blks;
1137         cp->ctx_blk_size = ctx_blk_size;
1138         if (!BNX2X_CHIP_IS_57710(cp->chip_id))
1139                 cp->ctx_align = 0;
1140         else
1141                 cp->ctx_align = ctx_blk_size;
1142
1143         cp->cids_per_blk = ctx_blk_size / BNX2X_CONTEXT_MEM_SIZE;
1144
1145         for (i = 0; i < blks; i++) {
1146                 cp->ctx_arr[i].ctx =
1147                         dma_alloc_coherent(&dev->pcidev->dev, cp->ctx_blk_size,
1148                                            &cp->ctx_arr[i].mapping,
1149                                            GFP_KERNEL);
1150                 if (cp->ctx_arr[i].ctx == NULL)
1151                         return -ENOMEM;
1152
1153                 if (cp->ctx_align && cp->ctx_blk_size == ctx_blk_size) {
1154                         if (cp->ctx_arr[i].mapping & (cp->ctx_align - 1)) {
1155                                 cnic_free_context(dev);
1156                                 cp->ctx_blk_size += cp->ctx_align;
1157                                 i = -1;
1158                                 continue;
1159                         }
1160                 }
1161         }
1162         return 0;
1163 }
1164
1165 static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
1166 {
1167         struct cnic_local *cp = dev->cnic_priv;
1168         struct cnic_eth_dev *ethdev = cp->ethdev;
1169         u32 start_cid = ethdev->starting_cid;
1170         int i, j, n, ret, pages;
1171         struct cnic_dma *kwq_16_dma = &cp->kwq_16_data_info;
1172
1173         cp->iro_arr = ethdev->iro_arr;
1174
1175         cp->max_cid_space = MAX_ISCSI_TBL_SZ;
1176         cp->iscsi_start_cid = start_cid;
1177         cp->fcoe_start_cid = start_cid + MAX_ISCSI_TBL_SZ;
1178
1179         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
1180                 cp->max_cid_space += BNX2X_FCOE_NUM_CONNECTIONS;
1181                 cp->fcoe_init_cid = ethdev->fcoe_init_cid;
1182                 if (!cp->fcoe_init_cid)
1183                         cp->fcoe_init_cid = 0x10;
1184         }
1185
1186         cp->iscsi_tbl = kzalloc(sizeof(struct cnic_iscsi) * MAX_ISCSI_TBL_SZ,
1187                                 GFP_KERNEL);
1188         if (!cp->iscsi_tbl)
1189                 goto error;
1190
1191         cp->ctx_tbl = kzalloc(sizeof(struct cnic_context) *
1192                                 cp->max_cid_space, GFP_KERNEL);
1193         if (!cp->ctx_tbl)
1194                 goto error;
1195
1196         for (i = 0; i < MAX_ISCSI_TBL_SZ; i++) {
1197                 cp->ctx_tbl[i].proto.iscsi = &cp->iscsi_tbl[i];
1198                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_ISCSI;
1199         }
1200
1201         for (i = MAX_ISCSI_TBL_SZ; i < cp->max_cid_space; i++)
1202                 cp->ctx_tbl[i].ulp_proto_id = CNIC_ULP_FCOE;
1203
1204         pages = PAGE_ALIGN(cp->max_cid_space * CNIC_KWQ16_DATA_SIZE) /
1205                 PAGE_SIZE;
1206
1207         ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
1208         if (ret)
1209                 return -ENOMEM;
1210
1211         n = PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
1212         for (i = 0, j = 0; i < cp->max_cid_space; i++) {
1213                 long off = CNIC_KWQ16_DATA_SIZE * (i % n);
1214
1215                 cp->ctx_tbl[i].kwqe_data = kwq_16_dma->pg_arr[j] + off;
1216                 cp->ctx_tbl[i].kwqe_data_mapping = kwq_16_dma->pg_map_arr[j] +
1217                                                    off;
1218
1219                 if ((i % n) == (n - 1))
1220                         j++;
1221         }
1222
1223         ret = cnic_alloc_kcq(dev, &cp->kcq1, false);
1224         if (ret)
1225                 goto error;
1226
1227         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
1228                 ret = cnic_alloc_kcq(dev, &cp->kcq2, true);
1229                 if (ret)
1230                         goto error;
1231         }
1232
1233         pages = PAGE_ALIGN(BNX2X_ISCSI_GLB_BUF_SIZE) / PAGE_SIZE;
1234         ret = cnic_alloc_dma(dev, &cp->gbl_buf_info, pages, 0);
1235         if (ret)
1236                 goto error;
1237
1238         ret = cnic_alloc_bnx2x_context(dev);
1239         if (ret)
1240                 goto error;
1241
1242         cp->bnx2x_def_status_blk = cp->ethdev->irq_arr[1].status_blk;
1243
1244         cp->l2_rx_ring_size = 15;
1245
1246         ret = cnic_alloc_uio_rings(dev, 4);
1247         if (ret)
1248                 goto error;
1249
1250         ret = cnic_init_uio(dev);
1251         if (ret)
1252                 goto error;
1253
1254         return 0;
1255
1256 error:
1257         cnic_free_resc(dev);
1258         return -ENOMEM;
1259 }
1260
1261 static inline u32 cnic_kwq_avail(struct cnic_local *cp)
1262 {
1263         return cp->max_kwq_idx -
1264                 ((cp->kwq_prod_idx - cp->kwq_con_idx) & cp->max_kwq_idx);
1265 }
1266
1267 static int cnic_submit_bnx2_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
1268                                   u32 num_wqes)
1269 {
1270         struct cnic_local *cp = dev->cnic_priv;
1271         struct kwqe *prod_qe;
1272         u16 prod, sw_prod, i;
1273
1274         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
1275                 return -EAGAIN;         /* bnx2 is down */
1276
1277         spin_lock_bh(&cp->cnic_ulp_lock);
1278         if (num_wqes > cnic_kwq_avail(cp) &&
1279             !test_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags)) {
1280                 spin_unlock_bh(&cp->cnic_ulp_lock);
1281                 return -EAGAIN;
1282         }
1283
1284         clear_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
1285
1286         prod = cp->kwq_prod_idx;
1287         sw_prod = prod & MAX_KWQ_IDX;
1288         for (i = 0; i < num_wqes; i++) {
1289                 prod_qe = &cp->kwq[KWQ_PG(sw_prod)][KWQ_IDX(sw_prod)];
1290                 memcpy(prod_qe, wqes[i], sizeof(struct kwqe));
1291                 prod++;
1292                 sw_prod = prod & MAX_KWQ_IDX;
1293         }
1294         cp->kwq_prod_idx = prod;
1295
1296         CNIC_WR16(dev, cp->kwq_io_addr, cp->kwq_prod_idx);
1297
1298         spin_unlock_bh(&cp->cnic_ulp_lock);
1299         return 0;
1300 }
1301
1302 static void *cnic_get_kwqe_16_data(struct cnic_local *cp, u32 l5_cid,
1303                                    union l5cm_specific_data *l5_data)
1304 {
1305         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1306         dma_addr_t map;
1307
1308         map = ctx->kwqe_data_mapping;
1309         l5_data->phy_address.lo = (u64) map & 0xffffffff;
1310         l5_data->phy_address.hi = (u64) map >> 32;
1311         return ctx->kwqe_data;
1312 }
1313
1314 static int cnic_submit_kwqe_16(struct cnic_dev *dev, u32 cmd, u32 cid,
1315                                 u32 type, union l5cm_specific_data *l5_data)
1316 {
1317         struct cnic_local *cp = dev->cnic_priv;
1318         struct l5cm_spe kwqe;
1319         struct kwqe_16 *kwq[1];
1320         u16 type_16;
1321         int ret;
1322
1323         kwqe.hdr.conn_and_cmd_data =
1324                 cpu_to_le32(((cmd << SPE_HDR_CMD_ID_SHIFT) |
1325                              BNX2X_HW_CID(cp, cid)));
1326
1327         type_16 = (type << SPE_HDR_CONN_TYPE_SHIFT) & SPE_HDR_CONN_TYPE;
1328         type_16 |= (cp->pfid << SPE_HDR_FUNCTION_ID_SHIFT) &
1329                    SPE_HDR_FUNCTION_ID;
1330
1331         kwqe.hdr.type = cpu_to_le16(type_16);
1332         kwqe.hdr.reserved1 = 0;
1333         kwqe.data.phy_address.lo = cpu_to_le32(l5_data->phy_address.lo);
1334         kwqe.data.phy_address.hi = cpu_to_le32(l5_data->phy_address.hi);
1335
1336         kwq[0] = (struct kwqe_16 *) &kwqe;
1337
1338         spin_lock_bh(&cp->cnic_ulp_lock);
1339         ret = cp->ethdev->drv_submit_kwqes_16(dev->netdev, kwq, 1);
1340         spin_unlock_bh(&cp->cnic_ulp_lock);
1341
1342         if (ret == 1)
1343                 return 0;
1344
1345         return -EBUSY;
1346 }
1347
1348 static void cnic_reply_bnx2x_kcqes(struct cnic_dev *dev, int ulp_type,
1349                                    struct kcqe *cqes[], u32 num_cqes)
1350 {
1351         struct cnic_local *cp = dev->cnic_priv;
1352         struct cnic_ulp_ops *ulp_ops;
1353
1354         rcu_read_lock();
1355         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
1356         if (likely(ulp_ops)) {
1357                 ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
1358                                           cqes, num_cqes);
1359         }
1360         rcu_read_unlock();
1361 }
1362
1363 static int cnic_bnx2x_iscsi_init1(struct cnic_dev *dev, struct kwqe *kwqe)
1364 {
1365         struct cnic_local *cp = dev->cnic_priv;
1366         struct iscsi_kwqe_init1 *req1 = (struct iscsi_kwqe_init1 *) kwqe;
1367         int hq_bds, pages;
1368         u32 pfid = cp->pfid;
1369
1370         cp->num_iscsi_tasks = req1->num_tasks_per_conn;
1371         cp->num_ccells = req1->num_ccells_per_conn;
1372         cp->task_array_size = BNX2X_ISCSI_TASK_CONTEXT_SIZE *
1373                               cp->num_iscsi_tasks;
1374         cp->r2tq_size = cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS *
1375                         BNX2X_ISCSI_R2TQE_SIZE;
1376         cp->hq_size = cp->num_ccells * BNX2X_ISCSI_HQ_BD_SIZE;
1377         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1378         hq_bds = pages * (PAGE_SIZE / BNX2X_ISCSI_HQ_BD_SIZE);
1379         cp->num_cqs = req1->num_cqs;
1380
1381         if (!dev->max_iscsi_conn)
1382                 return 0;
1383
1384         /* init Tstorm RAM */
1385         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1386                   req1->rq_num_wqes);
1387         CNIC_WR16(dev, BAR_TSTRORM_INTMEM + TSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1388                   PAGE_SIZE);
1389         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
1390                  TSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1391         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
1392                   TSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1393                   req1->num_tasks_per_conn);
1394
1395         /* init Ustorm RAM */
1396         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1397                   USTORM_ISCSI_RQ_BUFFER_SIZE_OFFSET(pfid),
1398                   req1->rq_buffer_size);
1399         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1400                   PAGE_SIZE);
1401         CNIC_WR8(dev, BAR_USTRORM_INTMEM +
1402                  USTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1403         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1404                   USTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1405                   req1->num_tasks_per_conn);
1406         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_RQ_SIZE_OFFSET(pfid),
1407                   req1->rq_num_wqes);
1408         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1409                   req1->cq_num_wqes);
1410         CNIC_WR16(dev, BAR_USTRORM_INTMEM + USTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1411                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1412
1413         /* init Xstorm RAM */
1414         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1415                   PAGE_SIZE);
1416         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1417                  XSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1418         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
1419                   XSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1420                   req1->num_tasks_per_conn);
1421         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1422                   hq_bds);
1423         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_SQ_SIZE_OFFSET(pfid),
1424                   req1->num_tasks_per_conn);
1425         CNIC_WR16(dev, BAR_XSTRORM_INTMEM + XSTORM_ISCSI_R2TQ_SIZE_OFFSET(pfid),
1426                   cp->num_iscsi_tasks * BNX2X_ISCSI_MAX_PENDING_R2TS);
1427
1428         /* init Cstorm RAM */
1429         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_PAGE_SIZE_OFFSET(pfid),
1430                   PAGE_SIZE);
1431         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
1432                  CSTORM_ISCSI_PAGE_SIZE_LOG_OFFSET(pfid), PAGE_SHIFT);
1433         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1434                   CSTORM_ISCSI_NUM_OF_TASKS_OFFSET(pfid),
1435                   req1->num_tasks_per_conn);
1436         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_CQ_SIZE_OFFSET(pfid),
1437                   req1->cq_num_wqes);
1438         CNIC_WR16(dev, BAR_CSTRORM_INTMEM + CSTORM_ISCSI_HQ_SIZE_OFFSET(pfid),
1439                   hq_bds);
1440
1441         return 0;
1442 }
1443
1444 static int cnic_bnx2x_iscsi_init2(struct cnic_dev *dev, struct kwqe *kwqe)
1445 {
1446         struct iscsi_kwqe_init2 *req2 = (struct iscsi_kwqe_init2 *) kwqe;
1447         struct cnic_local *cp = dev->cnic_priv;
1448         u32 pfid = cp->pfid;
1449         struct iscsi_kcqe kcqe;
1450         struct kcqe *cqes[1];
1451
1452         memset(&kcqe, 0, sizeof(kcqe));
1453         if (!dev->max_iscsi_conn) {
1454                 kcqe.completion_status =
1455                         ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED;
1456                 goto done;
1457         }
1458
1459         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1460                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1461         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
1462                 TSTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1463                 req2->error_bit_map[1]);
1464
1465         CNIC_WR16(dev, BAR_USTRORM_INTMEM +
1466                   USTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1467         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1468                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid), req2->error_bit_map[0]);
1469         CNIC_WR(dev, BAR_USTRORM_INTMEM +
1470                 USTORM_ISCSI_ERROR_BITMAP_OFFSET(pfid) + 4,
1471                 req2->error_bit_map[1]);
1472
1473         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
1474                   CSTORM_ISCSI_CQ_SQN_SIZE_OFFSET(pfid), req2->max_cq_sqn);
1475
1476         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1477
1478 done:
1479         kcqe.op_code = ISCSI_KCQE_OPCODE_INIT;
1480         cqes[0] = (struct kcqe *) &kcqe;
1481         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1482
1483         return 0;
1484 }
1485
1486 static void cnic_free_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1487 {
1488         struct cnic_local *cp = dev->cnic_priv;
1489         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1490
1491         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI) {
1492                 struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1493
1494                 cnic_free_dma(dev, &iscsi->hq_info);
1495                 cnic_free_dma(dev, &iscsi->r2tq_info);
1496                 cnic_free_dma(dev, &iscsi->task_array_info);
1497                 cnic_free_id(&cp->cid_tbl, ctx->cid);
1498         } else {
1499                 cnic_free_id(&cp->fcoe_cid_tbl, ctx->cid);
1500         }
1501
1502         ctx->cid = 0;
1503 }
1504
1505 static int cnic_alloc_bnx2x_conn_resc(struct cnic_dev *dev, u32 l5_cid)
1506 {
1507         u32 cid;
1508         int ret, pages;
1509         struct cnic_local *cp = dev->cnic_priv;
1510         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1511         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1512
1513         if (ctx->ulp_proto_id == CNIC_ULP_FCOE) {
1514                 cid = cnic_alloc_new_id(&cp->fcoe_cid_tbl);
1515                 if (cid == -1) {
1516                         ret = -ENOMEM;
1517                         goto error;
1518                 }
1519                 ctx->cid = cid;
1520                 return 0;
1521         }
1522
1523         cid = cnic_alloc_new_id(&cp->cid_tbl);
1524         if (cid == -1) {
1525                 ret = -ENOMEM;
1526                 goto error;
1527         }
1528
1529         ctx->cid = cid;
1530         pages = PAGE_ALIGN(cp->task_array_size) / PAGE_SIZE;
1531
1532         ret = cnic_alloc_dma(dev, &iscsi->task_array_info, pages, 1);
1533         if (ret)
1534                 goto error;
1535
1536         pages = PAGE_ALIGN(cp->r2tq_size) / PAGE_SIZE;
1537         ret = cnic_alloc_dma(dev, &iscsi->r2tq_info, pages, 1);
1538         if (ret)
1539                 goto error;
1540
1541         pages = PAGE_ALIGN(cp->hq_size) / PAGE_SIZE;
1542         ret = cnic_alloc_dma(dev, &iscsi->hq_info, pages, 1);
1543         if (ret)
1544                 goto error;
1545
1546         return 0;
1547
1548 error:
1549         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1550         return ret;
1551 }
1552
1553 static void *cnic_get_bnx2x_ctx(struct cnic_dev *dev, u32 cid, int init,
1554                                 struct regpair *ctx_addr)
1555 {
1556         struct cnic_local *cp = dev->cnic_priv;
1557         struct cnic_eth_dev *ethdev = cp->ethdev;
1558         int blk = (cid - ethdev->starting_cid) / cp->cids_per_blk;
1559         int off = (cid - ethdev->starting_cid) % cp->cids_per_blk;
1560         unsigned long align_off = 0;
1561         dma_addr_t ctx_map;
1562         void *ctx;
1563
1564         if (cp->ctx_align) {
1565                 unsigned long mask = cp->ctx_align - 1;
1566
1567                 if (cp->ctx_arr[blk].mapping & mask)
1568                         align_off = cp->ctx_align -
1569                                     (cp->ctx_arr[blk].mapping & mask);
1570         }
1571         ctx_map = cp->ctx_arr[blk].mapping + align_off +
1572                 (off * BNX2X_CONTEXT_MEM_SIZE);
1573         ctx = cp->ctx_arr[blk].ctx + align_off +
1574               (off * BNX2X_CONTEXT_MEM_SIZE);
1575         if (init)
1576                 memset(ctx, 0, BNX2X_CONTEXT_MEM_SIZE);
1577
1578         ctx_addr->lo = ctx_map & 0xffffffff;
1579         ctx_addr->hi = (u64) ctx_map >> 32;
1580         return ctx;
1581 }
1582
1583 static int cnic_setup_bnx2x_ctx(struct cnic_dev *dev, struct kwqe *wqes[],
1584                                 u32 num)
1585 {
1586         struct cnic_local *cp = dev->cnic_priv;
1587         struct iscsi_kwqe_conn_offload1 *req1 =
1588                         (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1589         struct iscsi_kwqe_conn_offload2 *req2 =
1590                         (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1591         struct iscsi_kwqe_conn_offload3 *req3;
1592         struct cnic_context *ctx = &cp->ctx_tbl[req1->iscsi_conn_id];
1593         struct cnic_iscsi *iscsi = ctx->proto.iscsi;
1594         u32 cid = ctx->cid;
1595         u32 hw_cid = BNX2X_HW_CID(cp, cid);
1596         struct iscsi_context *ictx;
1597         struct regpair context_addr;
1598         int i, j, n = 2, n_max;
1599         u8 port = CNIC_PORT(cp);
1600
1601         ctx->ctx_flags = 0;
1602         if (!req2->num_additional_wqes)
1603                 return -EINVAL;
1604
1605         n_max = req2->num_additional_wqes + 2;
1606
1607         ictx = cnic_get_bnx2x_ctx(dev, cid, 1, &context_addr);
1608         if (ictx == NULL)
1609                 return -ENOMEM;
1610
1611         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1612
1613         ictx->xstorm_ag_context.hq_prod = 1;
1614
1615         ictx->xstorm_st_context.iscsi.first_burst_length =
1616                 ISCSI_DEF_FIRST_BURST_LEN;
1617         ictx->xstorm_st_context.iscsi.max_send_pdu_length =
1618                 ISCSI_DEF_MAX_RECV_SEG_LEN;
1619         ictx->xstorm_st_context.iscsi.sq_pbl_base.lo =
1620                 req1->sq_page_table_addr_lo;
1621         ictx->xstorm_st_context.iscsi.sq_pbl_base.hi =
1622                 req1->sq_page_table_addr_hi;
1623         ictx->xstorm_st_context.iscsi.sq_curr_pbe.lo = req2->sq_first_pte.hi;
1624         ictx->xstorm_st_context.iscsi.sq_curr_pbe.hi = req2->sq_first_pte.lo;
1625         ictx->xstorm_st_context.iscsi.hq_pbl_base.lo =
1626                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1627         ictx->xstorm_st_context.iscsi.hq_pbl_base.hi =
1628                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1629         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.lo =
1630                 iscsi->hq_info.pgtbl[0];
1631         ictx->xstorm_st_context.iscsi.hq_curr_pbe_base.hi =
1632                 iscsi->hq_info.pgtbl[1];
1633         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.lo =
1634                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1635         ictx->xstorm_st_context.iscsi.r2tq_pbl_base.hi =
1636                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1637         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.lo =
1638                 iscsi->r2tq_info.pgtbl[0];
1639         ictx->xstorm_st_context.iscsi.r2tq_curr_pbe_base.hi =
1640                 iscsi->r2tq_info.pgtbl[1];
1641         ictx->xstorm_st_context.iscsi.task_pbl_base.lo =
1642                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1643         ictx->xstorm_st_context.iscsi.task_pbl_base.hi =
1644                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1645         ictx->xstorm_st_context.iscsi.task_pbl_cache_idx =
1646                 BNX2X_ISCSI_PBL_NOT_CACHED;
1647         ictx->xstorm_st_context.iscsi.flags.flags |=
1648                 XSTORM_ISCSI_CONTEXT_FLAGS_B_IMMEDIATE_DATA;
1649         ictx->xstorm_st_context.iscsi.flags.flags |=
1650                 XSTORM_ISCSI_CONTEXT_FLAGS_B_INITIAL_R2T;
1651         ictx->xstorm_st_context.common.ethernet.reserved_vlan_type =
1652                 ETH_P_8021Q;
1653         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) &&
1654                 cp->port_mode == CHIP_2_PORT_MODE) {
1655
1656                 port = 0;
1657         }
1658         ictx->xstorm_st_context.common.flags =
1659                 1 << XSTORM_COMMON_CONTEXT_SECTION_PHYSQ_INITIALIZED_SHIFT;
1660         ictx->xstorm_st_context.common.flags =
1661                 port << XSTORM_COMMON_CONTEXT_SECTION_PBF_PORT_SHIFT;
1662
1663         ictx->tstorm_st_context.iscsi.hdr_bytes_2_fetch = ISCSI_HEADER_SIZE;
1664         /* TSTORM requires the base address of RQ DB & not PTE */
1665         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.lo =
1666                 req2->rq_page_table_addr_lo & PAGE_MASK;
1667         ictx->tstorm_st_context.iscsi.rq_db_phy_addr.hi =
1668                 req2->rq_page_table_addr_hi;
1669         ictx->tstorm_st_context.iscsi.iscsi_conn_id = req1->iscsi_conn_id;
1670         ictx->tstorm_st_context.tcp.cwnd = 0x5A8;
1671         ictx->tstorm_st_context.tcp.flags2 |=
1672                 TSTORM_TCP_ST_CONTEXT_SECTION_DA_EN;
1673         ictx->tstorm_st_context.tcp.ooo_support_mode =
1674                 TCP_TSTORM_OOO_DROP_AND_PROC_ACK;
1675
1676         ictx->timers_context.flags |= TIMERS_BLOCK_CONTEXT_CONN_VALID_FLG;
1677
1678         ictx->ustorm_st_context.ring.rq.pbl_base.lo =
1679                 req2->rq_page_table_addr_lo;
1680         ictx->ustorm_st_context.ring.rq.pbl_base.hi =
1681                 req2->rq_page_table_addr_hi;
1682         ictx->ustorm_st_context.ring.rq.curr_pbe.lo = req3->qp_first_pte[0].hi;
1683         ictx->ustorm_st_context.ring.rq.curr_pbe.hi = req3->qp_first_pte[0].lo;
1684         ictx->ustorm_st_context.ring.r2tq.pbl_base.lo =
1685                 iscsi->r2tq_info.pgtbl_map & 0xffffffff;
1686         ictx->ustorm_st_context.ring.r2tq.pbl_base.hi =
1687                 (u64) iscsi->r2tq_info.pgtbl_map >> 32;
1688         ictx->ustorm_st_context.ring.r2tq.curr_pbe.lo =
1689                 iscsi->r2tq_info.pgtbl[0];
1690         ictx->ustorm_st_context.ring.r2tq.curr_pbe.hi =
1691                 iscsi->r2tq_info.pgtbl[1];
1692         ictx->ustorm_st_context.ring.cq_pbl_base.lo =
1693                 req1->cq_page_table_addr_lo;
1694         ictx->ustorm_st_context.ring.cq_pbl_base.hi =
1695                 req1->cq_page_table_addr_hi;
1696         ictx->ustorm_st_context.ring.cq[0].cq_sn = ISCSI_INITIAL_SN;
1697         ictx->ustorm_st_context.ring.cq[0].curr_pbe.lo = req2->cq_first_pte.hi;
1698         ictx->ustorm_st_context.ring.cq[0].curr_pbe.hi = req2->cq_first_pte.lo;
1699         ictx->ustorm_st_context.task_pbe_cache_index =
1700                 BNX2X_ISCSI_PBL_NOT_CACHED;
1701         ictx->ustorm_st_context.task_pdu_cache_index =
1702                 BNX2X_ISCSI_PDU_HEADER_NOT_CACHED;
1703
1704         for (i = 1, j = 1; i < cp->num_cqs; i++, j++) {
1705                 if (j == 3) {
1706                         if (n >= n_max)
1707                                 break;
1708                         req3 = (struct iscsi_kwqe_conn_offload3 *) wqes[n++];
1709                         j = 0;
1710                 }
1711                 ictx->ustorm_st_context.ring.cq[i].cq_sn = ISCSI_INITIAL_SN;
1712                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.lo =
1713                         req3->qp_first_pte[j].hi;
1714                 ictx->ustorm_st_context.ring.cq[i].curr_pbe.hi =
1715                         req3->qp_first_pte[j].lo;
1716         }
1717
1718         ictx->ustorm_st_context.task_pbl_base.lo =
1719                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1720         ictx->ustorm_st_context.task_pbl_base.hi =
1721                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1722         ictx->ustorm_st_context.tce_phy_addr.lo =
1723                 iscsi->task_array_info.pgtbl[0];
1724         ictx->ustorm_st_context.tce_phy_addr.hi =
1725                 iscsi->task_array_info.pgtbl[1];
1726         ictx->ustorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1727         ictx->ustorm_st_context.num_cqs = cp->num_cqs;
1728         ictx->ustorm_st_context.negotiated_rx |= ISCSI_DEF_MAX_RECV_SEG_LEN;
1729         ictx->ustorm_st_context.negotiated_rx_and_flags |=
1730                 ISCSI_DEF_MAX_BURST_LEN;
1731         ictx->ustorm_st_context.negotiated_rx |=
1732                 ISCSI_DEFAULT_MAX_OUTSTANDING_R2T <<
1733                 USTORM_ISCSI_ST_CONTEXT_MAX_OUTSTANDING_R2TS_SHIFT;
1734
1735         ictx->cstorm_st_context.hq_pbl_base.lo =
1736                 iscsi->hq_info.pgtbl_map & 0xffffffff;
1737         ictx->cstorm_st_context.hq_pbl_base.hi =
1738                 (u64) iscsi->hq_info.pgtbl_map >> 32;
1739         ictx->cstorm_st_context.hq_curr_pbe.lo = iscsi->hq_info.pgtbl[0];
1740         ictx->cstorm_st_context.hq_curr_pbe.hi = iscsi->hq_info.pgtbl[1];
1741         ictx->cstorm_st_context.task_pbl_base.lo =
1742                 iscsi->task_array_info.pgtbl_map & 0xffffffff;
1743         ictx->cstorm_st_context.task_pbl_base.hi =
1744                 (u64) iscsi->task_array_info.pgtbl_map >> 32;
1745         /* CSTORM and USTORM initialization is different, CSTORM requires
1746          * CQ DB base & not PTE addr */
1747         ictx->cstorm_st_context.cq_db_base.lo =
1748                 req1->cq_page_table_addr_lo & PAGE_MASK;
1749         ictx->cstorm_st_context.cq_db_base.hi = req1->cq_page_table_addr_hi;
1750         ictx->cstorm_st_context.iscsi_conn_id = req1->iscsi_conn_id;
1751         ictx->cstorm_st_context.cq_proc_en_bit_map = (1 << cp->num_cqs) - 1;
1752         for (i = 0; i < cp->num_cqs; i++) {
1753                 ictx->cstorm_st_context.cq_c_prod_sqn_arr.sqn[i] =
1754                         ISCSI_INITIAL_SN;
1755                 ictx->cstorm_st_context.cq_c_sqn_2_notify_arr.sqn[i] =
1756                         ISCSI_INITIAL_SN;
1757         }
1758
1759         ictx->xstorm_ag_context.cdu_reserved =
1760                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
1761                                        ISCSI_CONNECTION_TYPE);
1762         ictx->ustorm_ag_context.cdu_usage =
1763                 CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
1764                                        ISCSI_CONNECTION_TYPE);
1765         return 0;
1766
1767 }
1768
1769 static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
1770                                    u32 num, int *work)
1771 {
1772         struct iscsi_kwqe_conn_offload1 *req1;
1773         struct iscsi_kwqe_conn_offload2 *req2;
1774         struct cnic_local *cp = dev->cnic_priv;
1775         struct cnic_context *ctx;
1776         struct iscsi_kcqe kcqe;
1777         struct kcqe *cqes[1];
1778         u32 l5_cid;
1779         int ret = 0;
1780
1781         if (num < 2) {
1782                 *work = num;
1783                 return -EINVAL;
1784         }
1785
1786         req1 = (struct iscsi_kwqe_conn_offload1 *) wqes[0];
1787         req2 = (struct iscsi_kwqe_conn_offload2 *) wqes[1];
1788         if ((num - 2) < req2->num_additional_wqes) {
1789                 *work = num;
1790                 return -EINVAL;
1791         }
1792         *work = 2 + req2->num_additional_wqes;
1793
1794         l5_cid = req1->iscsi_conn_id;
1795         if (l5_cid >= MAX_ISCSI_TBL_SZ)
1796                 return -EINVAL;
1797
1798         memset(&kcqe, 0, sizeof(kcqe));
1799         kcqe.op_code = ISCSI_KCQE_OPCODE_OFFLOAD_CONN;
1800         kcqe.iscsi_conn_id = l5_cid;
1801         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
1802
1803         ctx = &cp->ctx_tbl[l5_cid];
1804         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags)) {
1805                 kcqe.completion_status =
1806                         ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY;
1807                 goto done;
1808         }
1809
1810         if (atomic_inc_return(&cp->iscsi_conn) > dev->max_iscsi_conn) {
1811                 atomic_dec(&cp->iscsi_conn);
1812                 goto done;
1813         }
1814         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
1815         if (ret) {
1816                 atomic_dec(&cp->iscsi_conn);
1817                 ret = 0;
1818                 goto done;
1819         }
1820         ret = cnic_setup_bnx2x_ctx(dev, wqes, num);
1821         if (ret < 0) {
1822                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
1823                 atomic_dec(&cp->iscsi_conn);
1824                 goto done;
1825         }
1826
1827         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1828         kcqe.iscsi_conn_context_id = BNX2X_HW_CID(cp, cp->ctx_tbl[l5_cid].cid);
1829
1830 done:
1831         cqes[0] = (struct kcqe *) &kcqe;
1832         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1833         return ret;
1834 }
1835
1836
1837 static int cnic_bnx2x_iscsi_update(struct cnic_dev *dev, struct kwqe *kwqe)
1838 {
1839         struct cnic_local *cp = dev->cnic_priv;
1840         struct iscsi_kwqe_conn_update *req =
1841                 (struct iscsi_kwqe_conn_update *) kwqe;
1842         void *data;
1843         union l5cm_specific_data l5_data;
1844         u32 l5_cid, cid = BNX2X_SW_CID(req->context_id);
1845         int ret;
1846
1847         if (cnic_get_l5_cid(cp, cid, &l5_cid) != 0)
1848                 return -EINVAL;
1849
1850         data = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
1851         if (!data)
1852                 return -ENOMEM;
1853
1854         memcpy(data, kwqe, sizeof(struct kwqe));
1855
1856         ret = cnic_submit_kwqe_16(dev, ISCSI_RAMROD_CMD_ID_UPDATE_CONN,
1857                         req->context_id, ISCSI_CONNECTION_TYPE, &l5_data);
1858         return ret;
1859 }
1860
1861 static int cnic_bnx2x_destroy_ramrod(struct cnic_dev *dev, u32 l5_cid)
1862 {
1863         struct cnic_local *cp = dev->cnic_priv;
1864         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1865         union l5cm_specific_data l5_data;
1866         int ret;
1867         u32 hw_cid;
1868
1869         init_waitqueue_head(&ctx->waitq);
1870         ctx->wait_cond = 0;
1871         memset(&l5_data, 0, sizeof(l5_data));
1872         hw_cid = BNX2X_HW_CID(cp, ctx->cid);
1873
1874         ret = cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
1875                                   hw_cid, NONE_CONNECTION_TYPE, &l5_data);
1876
1877         if (ret == 0) {
1878                 wait_event(ctx->waitq, ctx->wait_cond);
1879                 if (unlikely(test_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags)))
1880                         return -EBUSY;
1881         }
1882
1883         return ret;
1884 }
1885
1886 static int cnic_bnx2x_iscsi_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
1887 {
1888         struct cnic_local *cp = dev->cnic_priv;
1889         struct iscsi_kwqe_conn_destroy *req =
1890                 (struct iscsi_kwqe_conn_destroy *) kwqe;
1891         u32 l5_cid = req->reserved0;
1892         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
1893         int ret = 0;
1894         struct iscsi_kcqe kcqe;
1895         struct kcqe *cqes[1];
1896
1897         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
1898                 goto skip_cfc_delete;
1899
1900         if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
1901                 unsigned long delta = ctx->timestamp + (2 * HZ) - jiffies;
1902
1903                 if (delta > (2 * HZ))
1904                         delta = 0;
1905
1906                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
1907                 queue_delayed_work(cnic_wq, &cp->delete_task, delta);
1908                 goto destroy_reply;
1909         }
1910
1911         ret = cnic_bnx2x_destroy_ramrod(dev, l5_cid);
1912
1913 skip_cfc_delete:
1914         cnic_free_bnx2x_conn_resc(dev, l5_cid);
1915
1916         if (!ret) {
1917                 atomic_dec(&cp->iscsi_conn);
1918                 clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
1919         }
1920
1921 destroy_reply:
1922         memset(&kcqe, 0, sizeof(kcqe));
1923         kcqe.op_code = ISCSI_KCQE_OPCODE_DESTROY_CONN;
1924         kcqe.iscsi_conn_id = l5_cid;
1925         kcqe.completion_status = ISCSI_KCQE_COMPLETION_STATUS_SUCCESS;
1926         kcqe.iscsi_conn_context_id = req->context_id;
1927
1928         cqes[0] = (struct kcqe *) &kcqe;
1929         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_ISCSI, cqes, 1);
1930
1931         return ret;
1932 }
1933
1934 static void cnic_init_storm_conn_bufs(struct cnic_dev *dev,
1935                                       struct l4_kwq_connect_req1 *kwqe1,
1936                                       struct l4_kwq_connect_req3 *kwqe3,
1937                                       struct l5cm_active_conn_buffer *conn_buf)
1938 {
1939         struct l5cm_conn_addr_params *conn_addr = &conn_buf->conn_addr_buf;
1940         struct l5cm_xstorm_conn_buffer *xstorm_buf =
1941                 &conn_buf->xstorm_conn_buffer;
1942         struct l5cm_tstorm_conn_buffer *tstorm_buf =
1943                 &conn_buf->tstorm_conn_buffer;
1944         struct regpair context_addr;
1945         u32 cid = BNX2X_SW_CID(kwqe1->cid);
1946         struct in6_addr src_ip, dst_ip;
1947         int i;
1948         u32 *addrp;
1949
1950         addrp = (u32 *) &conn_addr->local_ip_addr;
1951         for (i = 0; i < 4; i++, addrp++)
1952                 src_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1953
1954         addrp = (u32 *) &conn_addr->remote_ip_addr;
1955         for (i = 0; i < 4; i++, addrp++)
1956                 dst_ip.in6_u.u6_addr32[i] = cpu_to_be32(*addrp);
1957
1958         cnic_get_bnx2x_ctx(dev, cid, 0, &context_addr);
1959
1960         xstorm_buf->context_addr.hi = context_addr.hi;
1961         xstorm_buf->context_addr.lo = context_addr.lo;
1962         xstorm_buf->mss = 0xffff;
1963         xstorm_buf->rcv_buf = kwqe3->rcv_buf;
1964         if (kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE)
1965                 xstorm_buf->params |= L5CM_XSTORM_CONN_BUFFER_NAGLE_ENABLE;
1966         xstorm_buf->pseudo_header_checksum =
1967                 swab16(~csum_ipv6_magic(&src_ip, &dst_ip, 0, IPPROTO_TCP, 0));
1968
1969         if (!(kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK))
1970                 tstorm_buf->params |=
1971                         L5CM_TSTORM_CONN_BUFFER_DELAYED_ACK_ENABLE;
1972         if (kwqe3->ka_timeout) {
1973                 tstorm_buf->ka_enable = 1;
1974                 tstorm_buf->ka_timeout = kwqe3->ka_timeout;
1975                 tstorm_buf->ka_interval = kwqe3->ka_interval;
1976                 tstorm_buf->ka_max_probe_count = kwqe3->ka_max_probe_count;
1977         }
1978         tstorm_buf->max_rt_time = 0xffffffff;
1979 }
1980
1981 static void cnic_init_bnx2x_mac(struct cnic_dev *dev)
1982 {
1983         struct cnic_local *cp = dev->cnic_priv;
1984         u32 pfid = cp->pfid;
1985         u8 *mac = dev->mac_addr;
1986
1987         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1988                  XSTORM_ISCSI_LOCAL_MAC_ADDR0_OFFSET(pfid), mac[0]);
1989         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1990                  XSTORM_ISCSI_LOCAL_MAC_ADDR1_OFFSET(pfid), mac[1]);
1991         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1992                  XSTORM_ISCSI_LOCAL_MAC_ADDR2_OFFSET(pfid), mac[2]);
1993         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1994                  XSTORM_ISCSI_LOCAL_MAC_ADDR3_OFFSET(pfid), mac[3]);
1995         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1996                  XSTORM_ISCSI_LOCAL_MAC_ADDR4_OFFSET(pfid), mac[4]);
1997         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
1998                  XSTORM_ISCSI_LOCAL_MAC_ADDR5_OFFSET(pfid), mac[5]);
1999
2000         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2001                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[5]);
2002         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2003                  TSTORM_ISCSI_TCP_VARS_LSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2004                  mac[4]);
2005         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2006                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid), mac[3]);
2007         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2008                  TSTORM_ISCSI_TCP_VARS_MID_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2009                  mac[2]);
2010         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2011                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid), mac[1]);
2012         CNIC_WR8(dev, BAR_TSTRORM_INTMEM +
2013                  TSTORM_ISCSI_TCP_VARS_MSB_LOCAL_MAC_ADDR_OFFSET(pfid) + 1,
2014                  mac[0]);
2015 }
2016
2017 static void cnic_bnx2x_set_tcp_timestamp(struct cnic_dev *dev, int tcp_ts)
2018 {
2019         struct cnic_local *cp = dev->cnic_priv;
2020         u8 xstorm_flags = XSTORM_L5CM_TCP_FLAGS_WND_SCL_EN;
2021         u16 tstorm_flags = 0;
2022
2023         if (tcp_ts) {
2024                 xstorm_flags |= XSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
2025                 tstorm_flags |= TSTORM_L5CM_TCP_FLAGS_TS_ENABLED;
2026         }
2027
2028         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
2029                  XSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), xstorm_flags);
2030
2031         CNIC_WR16(dev, BAR_TSTRORM_INTMEM +
2032                   TSTORM_ISCSI_TCP_VARS_FLAGS_OFFSET(cp->pfid), tstorm_flags);
2033 }
2034
2035 static int cnic_bnx2x_connect(struct cnic_dev *dev, struct kwqe *wqes[],
2036                               u32 num, int *work)
2037 {
2038         struct cnic_local *cp = dev->cnic_priv;
2039         struct l4_kwq_connect_req1 *kwqe1 =
2040                 (struct l4_kwq_connect_req1 *) wqes[0];
2041         struct l4_kwq_connect_req3 *kwqe3;
2042         struct l5cm_active_conn_buffer *conn_buf;
2043         struct l5cm_conn_addr_params *conn_addr;
2044         union l5cm_specific_data l5_data;
2045         u32 l5_cid = kwqe1->pg_cid;
2046         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
2047         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
2048         int ret;
2049
2050         if (num < 2) {
2051                 *work = num;
2052                 return -EINVAL;
2053         }
2054
2055         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6)
2056                 *work = 3;
2057         else
2058                 *work = 2;
2059
2060         if (num < *work) {
2061                 *work = num;
2062                 return -EINVAL;
2063         }
2064
2065         if (sizeof(*conn_buf) > CNIC_KWQ16_DATA_SIZE) {
2066                 netdev_err(dev->netdev, "conn_buf size too big\n");
2067                 return -ENOMEM;
2068         }
2069         conn_buf = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2070         if (!conn_buf)
2071                 return -ENOMEM;
2072
2073         memset(conn_buf, 0, sizeof(*conn_buf));
2074
2075         conn_addr = &conn_buf->conn_addr_buf;
2076         conn_addr->remote_addr_0 = csk->ha[0];
2077         conn_addr->remote_addr_1 = csk->ha[1];
2078         conn_addr->remote_addr_2 = csk->ha[2];
2079         conn_addr->remote_addr_3 = csk->ha[3];
2080         conn_addr->remote_addr_4 = csk->ha[4];
2081         conn_addr->remote_addr_5 = csk->ha[5];
2082
2083         if (kwqe1->conn_flags & L4_KWQ_CONNECT_REQ1_IP_V6) {
2084                 struct l4_kwq_connect_req2 *kwqe2 =
2085                         (struct l4_kwq_connect_req2 *) wqes[1];
2086
2087                 conn_addr->local_ip_addr.ip_addr_hi_hi = kwqe2->src_ip_v6_4;
2088                 conn_addr->local_ip_addr.ip_addr_hi_lo = kwqe2->src_ip_v6_3;
2089                 conn_addr->local_ip_addr.ip_addr_lo_hi = kwqe2->src_ip_v6_2;
2090
2091                 conn_addr->remote_ip_addr.ip_addr_hi_hi = kwqe2->dst_ip_v6_4;
2092                 conn_addr->remote_ip_addr.ip_addr_hi_lo = kwqe2->dst_ip_v6_3;
2093                 conn_addr->remote_ip_addr.ip_addr_lo_hi = kwqe2->dst_ip_v6_2;
2094                 conn_addr->params |= L5CM_CONN_ADDR_PARAMS_IP_VERSION;
2095         }
2096         kwqe3 = (struct l4_kwq_connect_req3 *) wqes[*work - 1];
2097
2098         conn_addr->local_ip_addr.ip_addr_lo_lo = kwqe1->src_ip;
2099         conn_addr->remote_ip_addr.ip_addr_lo_lo = kwqe1->dst_ip;
2100         conn_addr->local_tcp_port = kwqe1->src_port;
2101         conn_addr->remote_tcp_port = kwqe1->dst_port;
2102
2103         conn_addr->pmtu = kwqe3->pmtu;
2104         cnic_init_storm_conn_bufs(dev, kwqe1, kwqe3, conn_buf);
2105
2106         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
2107                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(cp->pfid), csk->vlan_id);
2108
2109         cnic_bnx2x_set_tcp_timestamp(dev,
2110                 kwqe1->tcp_flags & L4_KWQ_CONNECT_REQ1_TIME_STAMP);
2111
2112         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_TCP_CONNECT,
2113                         kwqe1->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2114         if (!ret)
2115                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2116
2117         return ret;
2118 }
2119
2120 static int cnic_bnx2x_close(struct cnic_dev *dev, struct kwqe *kwqe)
2121 {
2122         struct l4_kwq_close_req *req = (struct l4_kwq_close_req *) kwqe;
2123         union l5cm_specific_data l5_data;
2124         int ret;
2125
2126         memset(&l5_data, 0, sizeof(l5_data));
2127         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_CLOSE,
2128                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2129         return ret;
2130 }
2131
2132 static int cnic_bnx2x_reset(struct cnic_dev *dev, struct kwqe *kwqe)
2133 {
2134         struct l4_kwq_reset_req *req = (struct l4_kwq_reset_req *) kwqe;
2135         union l5cm_specific_data l5_data;
2136         int ret;
2137
2138         memset(&l5_data, 0, sizeof(l5_data));
2139         ret = cnic_submit_kwqe_16(dev, L5CM_RAMROD_CMD_ID_ABORT,
2140                         req->cid, ISCSI_CONNECTION_TYPE, &l5_data);
2141         return ret;
2142 }
2143 static int cnic_bnx2x_offload_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2144 {
2145         struct l4_kwq_offload_pg *req = (struct l4_kwq_offload_pg *) kwqe;
2146         struct l4_kcq kcqe;
2147         struct kcqe *cqes[1];
2148
2149         memset(&kcqe, 0, sizeof(kcqe));
2150         kcqe.pg_host_opaque = req->host_opaque;
2151         kcqe.pg_cid = req->host_opaque;
2152         kcqe.op_code = L4_KCQE_OPCODE_VALUE_OFFLOAD_PG;
2153         cqes[0] = (struct kcqe *) &kcqe;
2154         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2155         return 0;
2156 }
2157
2158 static int cnic_bnx2x_update_pg(struct cnic_dev *dev, struct kwqe *kwqe)
2159 {
2160         struct l4_kwq_update_pg *req = (struct l4_kwq_update_pg *) kwqe;
2161         struct l4_kcq kcqe;
2162         struct kcqe *cqes[1];
2163
2164         memset(&kcqe, 0, sizeof(kcqe));
2165         kcqe.pg_host_opaque = req->pg_host_opaque;
2166         kcqe.pg_cid = req->pg_cid;
2167         kcqe.op_code = L4_KCQE_OPCODE_VALUE_UPDATE_PG;
2168         cqes[0] = (struct kcqe *) &kcqe;
2169         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_L4, cqes, 1);
2170         return 0;
2171 }
2172
2173 static int cnic_bnx2x_fcoe_stat(struct cnic_dev *dev, struct kwqe *kwqe)
2174 {
2175         struct fcoe_kwqe_stat *req;
2176         struct fcoe_stat_ramrod_params *fcoe_stat;
2177         union l5cm_specific_data l5_data;
2178         struct cnic_local *cp = dev->cnic_priv;
2179         int ret;
2180         u32 cid;
2181
2182         req = (struct fcoe_kwqe_stat *) kwqe;
2183         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2184
2185         fcoe_stat = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2186         if (!fcoe_stat)
2187                 return -ENOMEM;
2188
2189         memset(fcoe_stat, 0, sizeof(*fcoe_stat));
2190         memcpy(&fcoe_stat->stat_kwqe, req, sizeof(*req));
2191
2192         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_STAT_FUNC, cid,
2193                                   FCOE_CONNECTION_TYPE, &l5_data);
2194         return ret;
2195 }
2196
2197 static int cnic_bnx2x_fcoe_init1(struct cnic_dev *dev, struct kwqe *wqes[],
2198                                  u32 num, int *work)
2199 {
2200         int ret;
2201         struct cnic_local *cp = dev->cnic_priv;
2202         u32 cid;
2203         struct fcoe_init_ramrod_params *fcoe_init;
2204         struct fcoe_kwqe_init1 *req1;
2205         struct fcoe_kwqe_init2 *req2;
2206         struct fcoe_kwqe_init3 *req3;
2207         union l5cm_specific_data l5_data;
2208
2209         if (num < 3) {
2210                 *work = num;
2211                 return -EINVAL;
2212         }
2213         req1 = (struct fcoe_kwqe_init1 *) wqes[0];
2214         req2 = (struct fcoe_kwqe_init2 *) wqes[1];
2215         req3 = (struct fcoe_kwqe_init3 *) wqes[2];
2216         if (req2->hdr.op_code != FCOE_KWQE_OPCODE_INIT2) {
2217                 *work = 1;
2218                 return -EINVAL;
2219         }
2220         if (req3->hdr.op_code != FCOE_KWQE_OPCODE_INIT3) {
2221                 *work = 2;
2222                 return -EINVAL;
2223         }
2224
2225         if (sizeof(*fcoe_init) > CNIC_KWQ16_DATA_SIZE) {
2226                 netdev_err(dev->netdev, "fcoe_init size too big\n");
2227                 return -ENOMEM;
2228         }
2229         fcoe_init = cnic_get_kwqe_16_data(cp, BNX2X_FCOE_L5_CID_BASE, &l5_data);
2230         if (!fcoe_init)
2231                 return -ENOMEM;
2232
2233         memset(fcoe_init, 0, sizeof(*fcoe_init));
2234         memcpy(&fcoe_init->init_kwqe1, req1, sizeof(*req1));
2235         memcpy(&fcoe_init->init_kwqe2, req2, sizeof(*req2));
2236         memcpy(&fcoe_init->init_kwqe3, req3, sizeof(*req3));
2237         fcoe_init->eq_pbl_base.lo = cp->kcq2.dma.pgtbl_map & 0xffffffff;
2238         fcoe_init->eq_pbl_base.hi = (u64) cp->kcq2.dma.pgtbl_map >> 32;
2239         fcoe_init->eq_pbl_size = cp->kcq2.dma.num_pages;
2240
2241         fcoe_init->sb_num = cp->status_blk_num;
2242         fcoe_init->eq_prod = MAX_KCQ_IDX;
2243         fcoe_init->sb_id = HC_INDEX_FCOE_EQ_CONS;
2244         cp->kcq2.sw_prod_idx = 0;
2245
2246         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2247         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_INIT_FUNC, cid,
2248                                   FCOE_CONNECTION_TYPE, &l5_data);
2249         *work = 3;
2250         return ret;
2251 }
2252
2253 static int cnic_bnx2x_fcoe_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
2254                                  u32 num, int *work)
2255 {
2256         int ret = 0;
2257         u32 cid = -1, l5_cid;
2258         struct cnic_local *cp = dev->cnic_priv;
2259         struct fcoe_kwqe_conn_offload1 *req1;
2260         struct fcoe_kwqe_conn_offload2 *req2;
2261         struct fcoe_kwqe_conn_offload3 *req3;
2262         struct fcoe_kwqe_conn_offload4 *req4;
2263         struct fcoe_conn_offload_ramrod_params *fcoe_offload;
2264         struct cnic_context *ctx;
2265         struct fcoe_context *fctx;
2266         struct regpair ctx_addr;
2267         union l5cm_specific_data l5_data;
2268         struct fcoe_kcqe kcqe;
2269         struct kcqe *cqes[1];
2270
2271         if (num < 4) {
2272                 *work = num;
2273                 return -EINVAL;
2274         }
2275         req1 = (struct fcoe_kwqe_conn_offload1 *) wqes[0];
2276         req2 = (struct fcoe_kwqe_conn_offload2 *) wqes[1];
2277         req3 = (struct fcoe_kwqe_conn_offload3 *) wqes[2];
2278         req4 = (struct fcoe_kwqe_conn_offload4 *) wqes[3];
2279
2280         *work = 4;
2281
2282         l5_cid = req1->fcoe_conn_id;
2283         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2284                 goto err_reply;
2285
2286         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2287
2288         ctx = &cp->ctx_tbl[l5_cid];
2289         if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
2290                 goto err_reply;
2291
2292         ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
2293         if (ret) {
2294                 ret = 0;
2295                 goto err_reply;
2296         }
2297         cid = ctx->cid;
2298
2299         fctx = cnic_get_bnx2x_ctx(dev, cid, 1, &ctx_addr);
2300         if (fctx) {
2301                 u32 hw_cid = BNX2X_HW_CID(cp, cid);
2302                 u32 val;
2303
2304                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_XCM_AG,
2305                                              FCOE_CONNECTION_TYPE);
2306                 fctx->xstorm_ag_context.cdu_reserved = val;
2307                 val = CDU_RSRVD_VALUE_TYPE_A(hw_cid, CDU_REGION_NUMBER_UCM_AG,
2308                                              FCOE_CONNECTION_TYPE);
2309                 fctx->ustorm_ag_context.cdu_usage = val;
2310         }
2311         if (sizeof(*fcoe_offload) > CNIC_KWQ16_DATA_SIZE) {
2312                 netdev_err(dev->netdev, "fcoe_offload size too big\n");
2313                 goto err_reply;
2314         }
2315         fcoe_offload = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2316         if (!fcoe_offload)
2317                 goto err_reply;
2318
2319         memset(fcoe_offload, 0, sizeof(*fcoe_offload));
2320         memcpy(&fcoe_offload->offload_kwqe1, req1, sizeof(*req1));
2321         memcpy(&fcoe_offload->offload_kwqe2, req2, sizeof(*req2));
2322         memcpy(&fcoe_offload->offload_kwqe3, req3, sizeof(*req3));
2323         memcpy(&fcoe_offload->offload_kwqe4, req4, sizeof(*req4));
2324
2325         cid = BNX2X_HW_CID(cp, cid);
2326         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_OFFLOAD_CONN, cid,
2327                                   FCOE_CONNECTION_TYPE, &l5_data);
2328         if (!ret)
2329                 set_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
2330
2331         return ret;
2332
2333 err_reply:
2334         if (cid != -1)
2335                 cnic_free_bnx2x_conn_resc(dev, l5_cid);
2336
2337         memset(&kcqe, 0, sizeof(kcqe));
2338         kcqe.op_code = FCOE_KCQE_OPCODE_OFFLOAD_CONN;
2339         kcqe.fcoe_conn_id = req1->fcoe_conn_id;
2340         kcqe.completion_status = FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE;
2341
2342         cqes[0] = (struct kcqe *) &kcqe;
2343         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2344         return ret;
2345 }
2346
2347 static int cnic_bnx2x_fcoe_enable(struct cnic_dev *dev, struct kwqe *kwqe)
2348 {
2349         struct fcoe_kwqe_conn_enable_disable *req;
2350         struct fcoe_conn_enable_disable_ramrod_params *fcoe_enable;
2351         union l5cm_specific_data l5_data;
2352         int ret;
2353         u32 cid, l5_cid;
2354         struct cnic_local *cp = dev->cnic_priv;
2355
2356         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2357         cid = req->context_id;
2358         l5_cid = req->conn_id + BNX2X_FCOE_L5_CID_BASE;
2359
2360         if (sizeof(*fcoe_enable) > CNIC_KWQ16_DATA_SIZE) {
2361                 netdev_err(dev->netdev, "fcoe_enable size too big\n");
2362                 return -ENOMEM;
2363         }
2364         fcoe_enable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2365         if (!fcoe_enable)
2366                 return -ENOMEM;
2367
2368         memset(fcoe_enable, 0, sizeof(*fcoe_enable));
2369         memcpy(&fcoe_enable->enable_disable_kwqe, req, sizeof(*req));
2370         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_ENABLE_CONN, cid,
2371                                   FCOE_CONNECTION_TYPE, &l5_data);
2372         return ret;
2373 }
2374
2375 static int cnic_bnx2x_fcoe_disable(struct cnic_dev *dev, struct kwqe *kwqe)
2376 {
2377         struct fcoe_kwqe_conn_enable_disable *req;
2378         struct fcoe_conn_enable_disable_ramrod_params *fcoe_disable;
2379         union l5cm_specific_data l5_data;
2380         int ret;
2381         u32 cid, l5_cid;
2382         struct cnic_local *cp = dev->cnic_priv;
2383
2384         req = (struct fcoe_kwqe_conn_enable_disable *) kwqe;
2385         cid = req->context_id;
2386         l5_cid = req->conn_id;
2387         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2388                 return -EINVAL;
2389
2390         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2391
2392         if (sizeof(*fcoe_disable) > CNIC_KWQ16_DATA_SIZE) {
2393                 netdev_err(dev->netdev, "fcoe_disable size too big\n");
2394                 return -ENOMEM;
2395         }
2396         fcoe_disable = cnic_get_kwqe_16_data(cp, l5_cid, &l5_data);
2397         if (!fcoe_disable)
2398                 return -ENOMEM;
2399
2400         memset(fcoe_disable, 0, sizeof(*fcoe_disable));
2401         memcpy(&fcoe_disable->enable_disable_kwqe, req, sizeof(*req));
2402         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DISABLE_CONN, cid,
2403                                   FCOE_CONNECTION_TYPE, &l5_data);
2404         return ret;
2405 }
2406
2407 static int cnic_bnx2x_fcoe_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2408 {
2409         struct fcoe_kwqe_conn_destroy *req;
2410         union l5cm_specific_data l5_data;
2411         int ret;
2412         u32 cid, l5_cid;
2413         struct cnic_local *cp = dev->cnic_priv;
2414         struct cnic_context *ctx;
2415         struct fcoe_kcqe kcqe;
2416         struct kcqe *cqes[1];
2417
2418         req = (struct fcoe_kwqe_conn_destroy *) kwqe;
2419         cid = req->context_id;
2420         l5_cid = req->conn_id;
2421         if (l5_cid >= BNX2X_FCOE_NUM_CONNECTIONS)
2422                 return -EINVAL;
2423
2424         l5_cid += BNX2X_FCOE_L5_CID_BASE;
2425
2426         ctx = &cp->ctx_tbl[l5_cid];
2427
2428         init_waitqueue_head(&ctx->waitq);
2429         ctx->wait_cond = 0;
2430
2431         memset(&l5_data, 0, sizeof(l5_data));
2432         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_TERMINATE_CONN, cid,
2433                                   FCOE_CONNECTION_TYPE, &l5_data);
2434         if (ret == 0) {
2435                 wait_event(ctx->waitq, ctx->wait_cond);
2436                 set_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags);
2437                 queue_delayed_work(cnic_wq, &cp->delete_task,
2438                                    msecs_to_jiffies(2000));
2439         }
2440
2441         memset(&kcqe, 0, sizeof(kcqe));
2442         kcqe.op_code = FCOE_KCQE_OPCODE_DESTROY_CONN;
2443         kcqe.fcoe_conn_id = req->conn_id;
2444         kcqe.fcoe_conn_context_id = cid;
2445
2446         cqes[0] = (struct kcqe *) &kcqe;
2447         cnic_reply_bnx2x_kcqes(dev, CNIC_ULP_FCOE, cqes, 1);
2448         return ret;
2449 }
2450
2451 static int cnic_bnx2x_fcoe_fw_destroy(struct cnic_dev *dev, struct kwqe *kwqe)
2452 {
2453         struct fcoe_kwqe_destroy *req;
2454         union l5cm_specific_data l5_data;
2455         struct cnic_local *cp = dev->cnic_priv;
2456         int ret;
2457         u32 cid;
2458
2459         req = (struct fcoe_kwqe_destroy *) kwqe;
2460         cid = BNX2X_HW_CID(cp, cp->fcoe_init_cid);
2461
2462         memset(&l5_data, 0, sizeof(l5_data));
2463         ret = cnic_submit_kwqe_16(dev, FCOE_RAMROD_CMD_ID_DESTROY_FUNC, cid,
2464                                   FCOE_CONNECTION_TYPE, &l5_data);
2465         return ret;
2466 }
2467
2468 static int cnic_submit_bnx2x_iscsi_kwqes(struct cnic_dev *dev,
2469                                          struct kwqe *wqes[], u32 num_wqes)
2470 {
2471         int i, work, ret;
2472         u32 opcode;
2473         struct kwqe *kwqe;
2474
2475         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2476                 return -EAGAIN;         /* bnx2 is down */
2477
2478         for (i = 0; i < num_wqes; ) {
2479                 kwqe = wqes[i];
2480                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2481                 work = 1;
2482
2483                 switch (opcode) {
2484                 case ISCSI_KWQE_OPCODE_INIT1:
2485                         ret = cnic_bnx2x_iscsi_init1(dev, kwqe);
2486                         break;
2487                 case ISCSI_KWQE_OPCODE_INIT2:
2488                         ret = cnic_bnx2x_iscsi_init2(dev, kwqe);
2489                         break;
2490                 case ISCSI_KWQE_OPCODE_OFFLOAD_CONN1:
2491                         ret = cnic_bnx2x_iscsi_ofld1(dev, &wqes[i],
2492                                                      num_wqes - i, &work);
2493                         break;
2494                 case ISCSI_KWQE_OPCODE_UPDATE_CONN:
2495                         ret = cnic_bnx2x_iscsi_update(dev, kwqe);
2496                         break;
2497                 case ISCSI_KWQE_OPCODE_DESTROY_CONN:
2498                         ret = cnic_bnx2x_iscsi_destroy(dev, kwqe);
2499                         break;
2500                 case L4_KWQE_OPCODE_VALUE_CONNECT1:
2501                         ret = cnic_bnx2x_connect(dev, &wqes[i], num_wqes - i,
2502                                                  &work);
2503                         break;
2504                 case L4_KWQE_OPCODE_VALUE_CLOSE:
2505                         ret = cnic_bnx2x_close(dev, kwqe);
2506                         break;
2507                 case L4_KWQE_OPCODE_VALUE_RESET:
2508                         ret = cnic_bnx2x_reset(dev, kwqe);
2509                         break;
2510                 case L4_KWQE_OPCODE_VALUE_OFFLOAD_PG:
2511                         ret = cnic_bnx2x_offload_pg(dev, kwqe);
2512                         break;
2513                 case L4_KWQE_OPCODE_VALUE_UPDATE_PG:
2514                         ret = cnic_bnx2x_update_pg(dev, kwqe);
2515                         break;
2516                 case L4_KWQE_OPCODE_VALUE_UPLOAD_PG:
2517                         ret = 0;
2518                         break;
2519                 default:
2520                         ret = 0;
2521                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2522                                    opcode);
2523                         break;
2524                 }
2525                 if (ret < 0)
2526                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2527                                    opcode);
2528                 i += work;
2529         }
2530         return 0;
2531 }
2532
2533 static int cnic_submit_bnx2x_fcoe_kwqes(struct cnic_dev *dev,
2534                                         struct kwqe *wqes[], u32 num_wqes)
2535 {
2536         struct cnic_local *cp = dev->cnic_priv;
2537         int i, work, ret;
2538         u32 opcode;
2539         struct kwqe *kwqe;
2540
2541         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2542                 return -EAGAIN;         /* bnx2 is down */
2543
2544         if (!BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
2545                 return -EINVAL;
2546
2547         for (i = 0; i < num_wqes; ) {
2548                 kwqe = wqes[i];
2549                 opcode = KWQE_OPCODE(kwqe->kwqe_op_flag);
2550                 work = 1;
2551
2552                 switch (opcode) {
2553                 case FCOE_KWQE_OPCODE_INIT1:
2554                         ret = cnic_bnx2x_fcoe_init1(dev, &wqes[i],
2555                                                     num_wqes - i, &work);
2556                         break;
2557                 case FCOE_KWQE_OPCODE_OFFLOAD_CONN1:
2558                         ret = cnic_bnx2x_fcoe_ofld1(dev, &wqes[i],
2559                                                     num_wqes - i, &work);
2560                         break;
2561                 case FCOE_KWQE_OPCODE_ENABLE_CONN:
2562                         ret = cnic_bnx2x_fcoe_enable(dev, kwqe);
2563                         break;
2564                 case FCOE_KWQE_OPCODE_DISABLE_CONN:
2565                         ret = cnic_bnx2x_fcoe_disable(dev, kwqe);
2566                         break;
2567                 case FCOE_KWQE_OPCODE_DESTROY_CONN:
2568                         ret = cnic_bnx2x_fcoe_destroy(dev, kwqe);
2569                         break;
2570                 case FCOE_KWQE_OPCODE_DESTROY:
2571                         ret = cnic_bnx2x_fcoe_fw_destroy(dev, kwqe);
2572                         break;
2573                 case FCOE_KWQE_OPCODE_STAT:
2574                         ret = cnic_bnx2x_fcoe_stat(dev, kwqe);
2575                         break;
2576                 default:
2577                         ret = 0;
2578                         netdev_err(dev->netdev, "Unknown type of KWQE(0x%x)\n",
2579                                    opcode);
2580                         break;
2581                 }
2582                 if (ret < 0)
2583                         netdev_err(dev->netdev, "KWQE(0x%x) failed\n",
2584                                    opcode);
2585                 i += work;
2586         }
2587         return 0;
2588 }
2589
2590 static int cnic_submit_bnx2x_kwqes(struct cnic_dev *dev, struct kwqe *wqes[],
2591                                    u32 num_wqes)
2592 {
2593         int ret = -EINVAL;
2594         u32 layer_code;
2595
2596         if (!test_bit(CNIC_F_CNIC_UP, &dev->flags))
2597                 return -EAGAIN;         /* bnx2x is down */
2598
2599         if (!num_wqes)
2600                 return 0;
2601
2602         layer_code = wqes[0]->kwqe_op_flag & KWQE_LAYER_MASK;
2603         switch (layer_code) {
2604         case KWQE_FLAGS_LAYER_MASK_L5_ISCSI:
2605         case KWQE_FLAGS_LAYER_MASK_L4:
2606         case KWQE_FLAGS_LAYER_MASK_L2:
2607                 ret = cnic_submit_bnx2x_iscsi_kwqes(dev, wqes, num_wqes);
2608                 break;
2609
2610         case KWQE_FLAGS_LAYER_MASK_L5_FCOE:
2611                 ret = cnic_submit_bnx2x_fcoe_kwqes(dev, wqes, num_wqes);
2612                 break;
2613         }
2614         return ret;
2615 }
2616
2617 static inline u32 cnic_get_kcqe_layer_mask(u32 opflag)
2618 {
2619         if (unlikely(KCQE_OPCODE(opflag) == FCOE_RAMROD_CMD_ID_TERMINATE_CONN))
2620                 return KCQE_FLAGS_LAYER_MASK_L4;
2621
2622         return opflag & KCQE_FLAGS_LAYER_MASK;
2623 }
2624
2625 static void service_kcqes(struct cnic_dev *dev, int num_cqes)
2626 {
2627         struct cnic_local *cp = dev->cnic_priv;
2628         int i, j, comp = 0;
2629
2630         i = 0;
2631         j = 1;
2632         while (num_cqes) {
2633                 struct cnic_ulp_ops *ulp_ops;
2634                 int ulp_type;
2635                 u32 kcqe_op_flag = cp->completed_kcq[i]->kcqe_op_flag;
2636                 u32 kcqe_layer = cnic_get_kcqe_layer_mask(kcqe_op_flag);
2637
2638                 if (unlikely(kcqe_op_flag & KCQE_RAMROD_COMPLETION))
2639                         comp++;
2640
2641                 while (j < num_cqes) {
2642                         u32 next_op = cp->completed_kcq[i + j]->kcqe_op_flag;
2643
2644                         if (cnic_get_kcqe_layer_mask(next_op) != kcqe_layer)
2645                                 break;
2646
2647                         if (unlikely(next_op & KCQE_RAMROD_COMPLETION))
2648                                 comp++;
2649                         j++;
2650                 }
2651
2652                 if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_RDMA)
2653                         ulp_type = CNIC_ULP_RDMA;
2654                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_ISCSI)
2655                         ulp_type = CNIC_ULP_ISCSI;
2656                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L5_FCOE)
2657                         ulp_type = CNIC_ULP_FCOE;
2658                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L4)
2659                         ulp_type = CNIC_ULP_L4;
2660                 else if (kcqe_layer == KCQE_FLAGS_LAYER_MASK_L2)
2661                         goto end;
2662                 else {
2663                         netdev_err(dev->netdev, "Unknown type of KCQE(0x%x)\n",
2664                                    kcqe_op_flag);
2665                         goto end;
2666                 }
2667
2668                 rcu_read_lock();
2669                 ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
2670                 if (likely(ulp_ops)) {
2671                         ulp_ops->indicate_kcqes(cp->ulp_handle[ulp_type],
2672                                                   cp->completed_kcq + i, j);
2673                 }
2674                 rcu_read_unlock();
2675 end:
2676                 num_cqes -= j;
2677                 i += j;
2678                 j = 1;
2679         }
2680         if (unlikely(comp))
2681                 cnic_spq_completion(dev, DRV_CTL_RET_L5_SPQ_CREDIT_CMD, comp);
2682 }
2683
2684 static int cnic_get_kcqes(struct cnic_dev *dev, struct kcq_info *info)
2685 {
2686         struct cnic_local *cp = dev->cnic_priv;
2687         u16 i, ri, hw_prod, last;
2688         struct kcqe *kcqe;
2689         int kcqe_cnt = 0, last_cnt = 0;
2690
2691         i = ri = last = info->sw_prod_idx;
2692         ri &= MAX_KCQ_IDX;
2693         hw_prod = *info->hw_prod_idx_ptr;
2694         hw_prod = info->hw_idx(hw_prod);
2695
2696         while ((i != hw_prod) && (kcqe_cnt < MAX_COMPLETED_KCQE)) {
2697                 kcqe = &info->kcq[KCQ_PG(ri)][KCQ_IDX(ri)];
2698                 cp->completed_kcq[kcqe_cnt++] = kcqe;
2699                 i = info->next_idx(i);
2700                 ri = i & MAX_KCQ_IDX;
2701                 if (likely(!(kcqe->kcqe_op_flag & KCQE_FLAGS_NEXT))) {
2702                         last_cnt = kcqe_cnt;
2703                         last = i;
2704                 }
2705         }
2706
2707         info->sw_prod_idx = last;
2708         return last_cnt;
2709 }
2710
2711 static int cnic_l2_completion(struct cnic_local *cp)
2712 {
2713         u16 hw_cons, sw_cons;
2714         struct cnic_uio_dev *udev = cp->udev;
2715         union eth_rx_cqe *cqe, *cqe_ring = (union eth_rx_cqe *)
2716                                         (udev->l2_ring + (2 * BCM_PAGE_SIZE));
2717         u32 cmd;
2718         int comp = 0;
2719
2720         if (!test_bit(CNIC_F_BNX2X_CLASS, &cp->dev->flags))
2721                 return 0;
2722
2723         hw_cons = *cp->rx_cons_ptr;
2724         if ((hw_cons & BNX2X_MAX_RCQ_DESC_CNT) == BNX2X_MAX_RCQ_DESC_CNT)
2725                 hw_cons++;
2726
2727         sw_cons = cp->rx_cons;
2728         while (sw_cons != hw_cons) {
2729                 u8 cqe_fp_flags;
2730
2731                 cqe = &cqe_ring[sw_cons & BNX2X_MAX_RCQ_DESC_CNT];
2732                 cqe_fp_flags = cqe->fast_path_cqe.type_error_flags;
2733                 if (cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE) {
2734                         cmd = le32_to_cpu(cqe->ramrod_cqe.conn_and_cmd_data);
2735                         cmd >>= COMMON_RAMROD_ETH_RX_CQE_CMD_ID_SHIFT;
2736                         if (cmd == RAMROD_CMD_ID_ETH_CLIENT_SETUP ||
2737                             cmd == RAMROD_CMD_ID_ETH_HALT)
2738                                 comp++;
2739                 }
2740                 sw_cons = BNX2X_NEXT_RCQE(sw_cons);
2741         }
2742         return comp;
2743 }
2744
2745 static void cnic_chk_pkt_rings(struct cnic_local *cp)
2746 {
2747         u16 rx_cons, tx_cons;
2748         int comp = 0;
2749
2750         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
2751                 return;
2752
2753         rx_cons = *cp->rx_cons_ptr;
2754         tx_cons = *cp->tx_cons_ptr;
2755         if (cp->tx_cons != tx_cons || cp->rx_cons != rx_cons) {
2756                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
2757                         comp = cnic_l2_completion(cp);
2758
2759                 cp->tx_cons = tx_cons;
2760                 cp->rx_cons = rx_cons;
2761
2762                 if (cp->udev)
2763                         uio_event_notify(&cp->udev->cnic_uinfo);
2764         }
2765         if (comp)
2766                 clear_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
2767 }
2768
2769 static u32 cnic_service_bnx2_queues(struct cnic_dev *dev)
2770 {
2771         struct cnic_local *cp = dev->cnic_priv;
2772         u32 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2773         int kcqe_cnt;
2774
2775         /* status block index must be read before reading other fields */
2776         rmb();
2777         cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2778
2779         while ((kcqe_cnt = cnic_get_kcqes(dev, &cp->kcq1))) {
2780
2781                 service_kcqes(dev, kcqe_cnt);
2782
2783                 /* Tell compiler that status_blk fields can change. */
2784                 barrier();
2785                 status_idx = (u16) *cp->kcq1.status_idx_ptr;
2786                 /* status block index must be read first */
2787                 rmb();
2788                 cp->kwq_con_idx = *cp->kwq_con_idx_ptr;
2789         }
2790
2791         CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx);
2792
2793         cnic_chk_pkt_rings(cp);
2794
2795         return status_idx;
2796 }
2797
2798 static int cnic_service_bnx2(void *data, void *status_blk)
2799 {
2800         struct cnic_dev *dev = data;
2801
2802         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2803                 struct status_block *sblk = status_blk;
2804
2805                 return sblk->status_idx;
2806         }
2807
2808         return cnic_service_bnx2_queues(dev);
2809 }
2810
2811 static void cnic_service_bnx2_msix(unsigned long data)
2812 {
2813         struct cnic_dev *dev = (struct cnic_dev *) data;
2814         struct cnic_local *cp = dev->cnic_priv;
2815
2816         cp->last_status_idx = cnic_service_bnx2_queues(dev);
2817
2818         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
2819                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
2820 }
2821
2822 static void cnic_doirq(struct cnic_dev *dev)
2823 {
2824         struct cnic_local *cp = dev->cnic_priv;
2825
2826         if (likely(test_bit(CNIC_F_CNIC_UP, &dev->flags))) {
2827                 u16 prod = cp->kcq1.sw_prod_idx & MAX_KCQ_IDX;
2828
2829                 prefetch(cp->status_blk.gen);
2830                 prefetch(&cp->kcq1.kcq[KCQ_PG(prod)][KCQ_IDX(prod)]);
2831
2832                 tasklet_schedule(&cp->cnic_irq_task);
2833         }
2834 }
2835
2836 static irqreturn_t cnic_irq(int irq, void *dev_instance)
2837 {
2838         struct cnic_dev *dev = dev_instance;
2839         struct cnic_local *cp = dev->cnic_priv;
2840
2841         if (cp->ack_int)
2842                 cp->ack_int(dev);
2843
2844         cnic_doirq(dev);
2845
2846         return IRQ_HANDLED;
2847 }
2848
2849 static inline void cnic_ack_bnx2x_int(struct cnic_dev *dev, u8 id, u8 storm,
2850                                       u16 index, u8 op, u8 update)
2851 {
2852         struct cnic_local *cp = dev->cnic_priv;
2853         u32 hc_addr = (HC_REG_COMMAND_REG + CNIC_PORT(cp) * 32 +
2854                        COMMAND_REG_INT_ACK);
2855         struct igu_ack_register igu_ack;
2856
2857         igu_ack.status_block_index = index;
2858         igu_ack.sb_id_and_flags =
2859                         ((id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
2860                          (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
2861                          (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
2862                          (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
2863
2864         CNIC_WR(dev, hc_addr, (*(u32 *)&igu_ack));
2865 }
2866
2867 static void cnic_ack_igu_sb(struct cnic_dev *dev, u8 igu_sb_id, u8 segment,
2868                             u16 index, u8 op, u8 update)
2869 {
2870         struct igu_regular cmd_data;
2871         u32 igu_addr = BAR_IGU_INTMEM + (IGU_CMD_INT_ACK_BASE + igu_sb_id) * 8;
2872
2873         cmd_data.sb_id_and_flags =
2874                 (index << IGU_REGULAR_SB_INDEX_SHIFT) |
2875                 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
2876                 (update << IGU_REGULAR_BUPDATE_SHIFT) |
2877                 (op << IGU_REGULAR_ENABLE_INT_SHIFT);
2878
2879
2880         CNIC_WR(dev, igu_addr, cmd_data.sb_id_and_flags);
2881 }
2882
2883 static void cnic_ack_bnx2x_msix(struct cnic_dev *dev)
2884 {
2885         struct cnic_local *cp = dev->cnic_priv;
2886
2887         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, CSTORM_ID, 0,
2888                            IGU_INT_DISABLE, 0);
2889 }
2890
2891 static void cnic_ack_bnx2x_e2_msix(struct cnic_dev *dev)
2892 {
2893         struct cnic_local *cp = dev->cnic_priv;
2894
2895         cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF, 0,
2896                         IGU_INT_DISABLE, 0);
2897 }
2898
2899 static u32 cnic_service_bnx2x_kcq(struct cnic_dev *dev, struct kcq_info *info)
2900 {
2901         u32 last_status = *info->status_idx_ptr;
2902         int kcqe_cnt;
2903
2904         /* status block index must be read before reading the KCQ */
2905         rmb();
2906         while ((kcqe_cnt = cnic_get_kcqes(dev, info))) {
2907
2908                 service_kcqes(dev, kcqe_cnt);
2909
2910                 /* Tell compiler that sblk fields can change. */
2911                 barrier();
2912
2913                 last_status = *info->status_idx_ptr;
2914                 /* status block index must be read before reading the KCQ */
2915                 rmb();
2916         }
2917         return last_status;
2918 }
2919
2920 static void cnic_service_bnx2x_bh(unsigned long data)
2921 {
2922         struct cnic_dev *dev = (struct cnic_dev *) data;
2923         struct cnic_local *cp = dev->cnic_priv;
2924         u32 status_idx, new_status_idx;
2925
2926         if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags)))
2927                 return;
2928
2929         while (1) {
2930                 status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);
2931
2932                 CNIC_WR16(dev, cp->kcq1.io_addr,
2933                           cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);
2934
2935                 if (!BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
2936                         cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,
2937                                            status_idx, IGU_INT_ENABLE, 1);
2938                         break;
2939                 }
2940
2941                 new_status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);
2942
2943                 if (new_status_idx != status_idx)
2944                         continue;
2945
2946                 CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +
2947                           MAX_KCQ_IDX);
2948
2949                 cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,
2950                                 status_idx, IGU_INT_ENABLE, 1);
2951
2952                 break;
2953         }
2954 }
2955
2956 static int cnic_service_bnx2x(void *data, void *status_blk)
2957 {
2958         struct cnic_dev *dev = data;
2959         struct cnic_local *cp = dev->cnic_priv;
2960
2961         if (!(cp->ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
2962                 cnic_doirq(dev);
2963
2964         cnic_chk_pkt_rings(cp);
2965
2966         return 0;
2967 }
2968
2969 static void cnic_ulp_stop_one(struct cnic_local *cp, int if_type)
2970 {
2971         struct cnic_ulp_ops *ulp_ops;
2972
2973         if (if_type == CNIC_ULP_ISCSI)
2974                 cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
2975
2976         mutex_lock(&cnic_lock);
2977         ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
2978                                             lockdep_is_held(&cnic_lock));
2979         if (!ulp_ops) {
2980                 mutex_unlock(&cnic_lock);
2981                 return;
2982         }
2983         set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2984         mutex_unlock(&cnic_lock);
2985
2986         if (test_and_clear_bit(ULP_F_START, &cp->ulp_flags[if_type]))
2987                 ulp_ops->cnic_stop(cp->ulp_handle[if_type]);
2988
2989         clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
2990 }
2991
2992 static void cnic_ulp_stop(struct cnic_dev *dev)
2993 {
2994         struct cnic_local *cp = dev->cnic_priv;
2995         int if_type;
2996
2997         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++)
2998                 cnic_ulp_stop_one(cp, if_type);
2999 }
3000
3001 static void cnic_ulp_start(struct cnic_dev *dev)
3002 {
3003         struct cnic_local *cp = dev->cnic_priv;
3004         int if_type;
3005
3006         for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
3007                 struct cnic_ulp_ops *ulp_ops;
3008
3009                 mutex_lock(&cnic_lock);
3010                 ulp_ops = rcu_dereference_protected(cp->ulp_ops[if_type],
3011                                                     lockdep_is_held(&cnic_lock));
3012                 if (!ulp_ops || !ulp_ops->cnic_start) {
3013                         mutex_unlock(&cnic_lock);
3014                         continue;
3015                 }
3016                 set_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3017                 mutex_unlock(&cnic_lock);
3018
3019                 if (!test_and_set_bit(ULP_F_START, &cp->ulp_flags[if_type]))
3020                         ulp_ops->cnic_start(cp->ulp_handle[if_type]);
3021
3022                 clear_bit(ULP_F_CALL_PENDING, &cp->ulp_flags[if_type]);
3023         }
3024 }
3025
3026 static int cnic_ctl(void *data, struct cnic_ctl_info *info)
3027 {
3028         struct cnic_dev *dev = data;
3029
3030         switch (info->cmd) {
3031         case CNIC_CTL_STOP_CMD:
3032                 cnic_hold(dev);
3033
3034                 cnic_ulp_stop(dev);
3035                 cnic_stop_hw(dev);
3036
3037                 cnic_put(dev);
3038                 break;
3039         case CNIC_CTL_START_CMD:
3040                 cnic_hold(dev);
3041
3042                 if (!cnic_start_hw(dev))
3043                         cnic_ulp_start(dev);
3044
3045                 cnic_put(dev);
3046                 break;
3047         case CNIC_CTL_STOP_ISCSI_CMD: {
3048                 struct cnic_local *cp = dev->cnic_priv;
3049                 set_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags);
3050                 queue_delayed_work(cnic_wq, &cp->delete_task, 0);
3051                 break;
3052         }
3053         case CNIC_CTL_COMPLETION_CMD: {
3054                 struct cnic_ctl_completion *comp = &info->data.comp;
3055                 u32 cid = BNX2X_SW_CID(comp->cid);
3056                 u32 l5_cid;
3057                 struct cnic_local *cp = dev->cnic_priv;
3058
3059                 if (cnic_get_l5_cid(cp, cid, &l5_cid) == 0) {
3060                         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3061
3062                         if (unlikely(comp->error)) {
3063                                 set_bit(CTX_FL_CID_ERROR, &ctx->ctx_flags);
3064                                 netdev_err(dev->netdev,
3065                                            "CID %x CFC delete comp error %x\n",
3066                                            cid, comp->error);
3067                         }
3068
3069                         ctx->wait_cond = 1;
3070                         wake_up(&ctx->waitq);
3071                 }
3072                 break;
3073         }
3074         default:
3075                 return -EINVAL;
3076         }
3077         return 0;
3078 }
3079
3080 static void cnic_ulp_init(struct cnic_dev *dev)
3081 {
3082         int i;
3083         struct cnic_local *cp = dev->cnic_priv;
3084
3085         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3086                 struct cnic_ulp_ops *ulp_ops;
3087
3088                 mutex_lock(&cnic_lock);
3089                 ulp_ops = cnic_ulp_tbl_prot(i);
3090                 if (!ulp_ops || !ulp_ops->cnic_init) {
3091                         mutex_unlock(&cnic_lock);
3092                         continue;
3093                 }
3094                 ulp_get(ulp_ops);
3095                 mutex_unlock(&cnic_lock);
3096
3097                 if (!test_and_set_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3098                         ulp_ops->cnic_init(dev);
3099
3100                 ulp_put(ulp_ops);
3101         }
3102 }
3103
3104 static void cnic_ulp_exit(struct cnic_dev *dev)
3105 {
3106         int i;
3107         struct cnic_local *cp = dev->cnic_priv;
3108
3109         for (i = 0; i < MAX_CNIC_ULP_TYPE_EXT; i++) {
3110                 struct cnic_ulp_ops *ulp_ops;
3111
3112                 mutex_lock(&cnic_lock);
3113                 ulp_ops = cnic_ulp_tbl_prot(i);
3114                 if (!ulp_ops || !ulp_ops->cnic_exit) {
3115                         mutex_unlock(&cnic_lock);
3116                         continue;
3117                 }
3118                 ulp_get(ulp_ops);
3119                 mutex_unlock(&cnic_lock);
3120
3121                 if (test_and_clear_bit(ULP_F_INIT, &cp->ulp_flags[i]))
3122                         ulp_ops->cnic_exit(dev);
3123
3124                 ulp_put(ulp_ops);
3125         }
3126 }
3127
3128 static int cnic_cm_offload_pg(struct cnic_sock *csk)
3129 {
3130         struct cnic_dev *dev = csk->dev;
3131         struct l4_kwq_offload_pg *l4kwqe;
3132         struct kwqe *wqes[1];
3133
3134         l4kwqe = (struct l4_kwq_offload_pg *) &csk->kwqe1;
3135         memset(l4kwqe, 0, sizeof(*l4kwqe));
3136         wqes[0] = (struct kwqe *) l4kwqe;
3137
3138         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_OFFLOAD_PG;
3139         l4kwqe->flags =
3140                 L4_LAYER_CODE << L4_KWQ_OFFLOAD_PG_LAYER_CODE_SHIFT;
3141         l4kwqe->l2hdr_nbytes = ETH_HLEN;
3142
3143         l4kwqe->da0 = csk->ha[0];
3144         l4kwqe->da1 = csk->ha[1];
3145         l4kwqe->da2 = csk->ha[2];
3146         l4kwqe->da3 = csk->ha[3];
3147         l4kwqe->da4 = csk->ha[4];
3148         l4kwqe->da5 = csk->ha[5];
3149
3150         l4kwqe->sa0 = dev->mac_addr[0];
3151         l4kwqe->sa1 = dev->mac_addr[1];
3152         l4kwqe->sa2 = dev->mac_addr[2];
3153         l4kwqe->sa3 = dev->mac_addr[3];
3154         l4kwqe->sa4 = dev->mac_addr[4];
3155         l4kwqe->sa5 = dev->mac_addr[5];
3156
3157         l4kwqe->etype = ETH_P_IP;
3158         l4kwqe->ipid_start = DEF_IPID_START;
3159         l4kwqe->host_opaque = csk->l5_cid;
3160
3161         if (csk->vlan_id) {
3162                 l4kwqe->pg_flags |= L4_KWQ_OFFLOAD_PG_VLAN_TAGGING;
3163                 l4kwqe->vlan_tag = csk->vlan_id;
3164                 l4kwqe->l2hdr_nbytes += 4;
3165         }
3166
3167         return dev->submit_kwqes(dev, wqes, 1);
3168 }
3169
3170 static int cnic_cm_update_pg(struct cnic_sock *csk)
3171 {
3172         struct cnic_dev *dev = csk->dev;
3173         struct l4_kwq_update_pg *l4kwqe;
3174         struct kwqe *wqes[1];
3175
3176         l4kwqe = (struct l4_kwq_update_pg *) &csk->kwqe1;
3177         memset(l4kwqe, 0, sizeof(*l4kwqe));
3178         wqes[0] = (struct kwqe *) l4kwqe;
3179
3180         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPDATE_PG;
3181         l4kwqe->flags =
3182                 L4_LAYER_CODE << L4_KWQ_UPDATE_PG_LAYER_CODE_SHIFT;
3183         l4kwqe->pg_cid = csk->pg_cid;
3184
3185         l4kwqe->da0 = csk->ha[0];
3186         l4kwqe->da1 = csk->ha[1];
3187         l4kwqe->da2 = csk->ha[2];
3188         l4kwqe->da3 = csk->ha[3];
3189         l4kwqe->da4 = csk->ha[4];
3190         l4kwqe->da5 = csk->ha[5];
3191
3192         l4kwqe->pg_host_opaque = csk->l5_cid;
3193         l4kwqe->pg_valids = L4_KWQ_UPDATE_PG_VALIDS_DA;
3194
3195         return dev->submit_kwqes(dev, wqes, 1);
3196 }
3197
3198 static int cnic_cm_upload_pg(struct cnic_sock *csk)
3199 {
3200         struct cnic_dev *dev = csk->dev;
3201         struct l4_kwq_upload *l4kwqe;
3202         struct kwqe *wqes[1];
3203
3204         l4kwqe = (struct l4_kwq_upload *) &csk->kwqe1;
3205         memset(l4kwqe, 0, sizeof(*l4kwqe));
3206         wqes[0] = (struct kwqe *) l4kwqe;
3207
3208         l4kwqe->opcode = L4_KWQE_OPCODE_VALUE_UPLOAD_PG;
3209         l4kwqe->flags =
3210                 L4_LAYER_CODE << L4_KWQ_UPLOAD_LAYER_CODE_SHIFT;
3211         l4kwqe->cid = csk->pg_cid;
3212
3213         return dev->submit_kwqes(dev, wqes, 1);
3214 }
3215
3216 static int cnic_cm_conn_req(struct cnic_sock *csk)
3217 {
3218         struct cnic_dev *dev = csk->dev;
3219         struct l4_kwq_connect_req1 *l4kwqe1;
3220         struct l4_kwq_connect_req2 *l4kwqe2;
3221         struct l4_kwq_connect_req3 *l4kwqe3;
3222         struct kwqe *wqes[3];
3223         u8 tcp_flags = 0;
3224         int num_wqes = 2;
3225
3226         l4kwqe1 = (struct l4_kwq_connect_req1 *) &csk->kwqe1;
3227         l4kwqe2 = (struct l4_kwq_connect_req2 *) &csk->kwqe2;
3228         l4kwqe3 = (struct l4_kwq_connect_req3 *) &csk->kwqe3;
3229         memset(l4kwqe1, 0, sizeof(*l4kwqe1));
3230         memset(l4kwqe2, 0, sizeof(*l4kwqe2));
3231         memset(l4kwqe3, 0, sizeof(*l4kwqe3));
3232
3233         l4kwqe3->op_code = L4_KWQE_OPCODE_VALUE_CONNECT3;
3234         l4kwqe3->flags =
3235                 L4_LAYER_CODE << L4_KWQ_CONNECT_REQ3_LAYER_CODE_SHIFT;
3236         l4kwqe3->ka_timeout = csk->ka_timeout;
3237         l4kwqe3->ka_interval = csk->ka_interval;
3238         l4kwqe3->ka_max_probe_count = csk->ka_max_probe_count;
3239         l4kwqe3->tos = csk->tos;
3240         l4kwqe3->ttl = csk->ttl;
3241         l4kwqe3->snd_seq_scale = csk->snd_seq_scale;
3242         l4kwqe3->pmtu = csk->mtu;
3243         l4kwqe3->rcv_buf = csk->rcv_buf;
3244         l4kwqe3->snd_buf = csk->snd_buf;
3245         l4kwqe3->seed = csk->seed;
3246
3247         wqes[0] = (struct kwqe *) l4kwqe1;
3248         if (test_bit(SK_F_IPV6, &csk->flags)) {
3249                 wqes[1] = (struct kwqe *) l4kwqe2;
3250                 wqes[2] = (struct kwqe *) l4kwqe3;
3251                 num_wqes = 3;
3252
3253                 l4kwqe1->conn_flags = L4_KWQ_CONNECT_REQ1_IP_V6;
3254                 l4kwqe2->op_code = L4_KWQE_OPCODE_VALUE_CONNECT2;
3255                 l4kwqe2->flags =
3256                         L4_KWQ_CONNECT_REQ2_LINKED_WITH_NEXT |
3257                         L4_LAYER_CODE << L4_KWQ_CONNECT_REQ2_LAYER_CODE_SHIFT;
3258                 l4kwqe2->src_ip_v6_2 = be32_to_cpu(csk->src_ip[1]);
3259                 l4kwqe2->src_ip_v6_3 = be32_to_cpu(csk->src_ip[2]);
3260                 l4kwqe2->src_ip_v6_4 = be32_to_cpu(csk->src_ip[3]);
3261                 l4kwqe2->dst_ip_v6_2 = be32_to_cpu(csk->dst_ip[1]);
3262                 l4kwqe2->dst_ip_v6_3 = be32_to_cpu(csk->dst_ip[2]);
3263                 l4kwqe2->dst_ip_v6_4 = be32_to_cpu(csk->dst_ip[3]);
3264                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct ipv6hdr) -
3265                                sizeof(struct tcphdr);
3266         } else {
3267                 wqes[1] = (struct kwqe *) l4kwqe3;
3268                 l4kwqe3->mss = l4kwqe3->pmtu - sizeof(struct iphdr) -
3269                                sizeof(struct tcphdr);
3270         }
3271
3272         l4kwqe1->op_code = L4_KWQE_OPCODE_VALUE_CONNECT1;
3273         l4kwqe1->flags =
3274                 (L4_LAYER_CODE << L4_KWQ_CONNECT_REQ1_LAYER_CODE_SHIFT) |
3275                  L4_KWQ_CONNECT_REQ3_LINKED_WITH_NEXT;
3276         l4kwqe1->cid = csk->cid;
3277         l4kwqe1->pg_cid = csk->pg_cid;
3278         l4kwqe1->src_ip = be32_to_cpu(csk->src_ip[0]);
3279         l4kwqe1->dst_ip = be32_to_cpu(csk->dst_ip[0]);
3280         l4kwqe1->src_port = be16_to_cpu(csk->src_port);
3281         l4kwqe1->dst_port = be16_to_cpu(csk->dst_port);
3282         if (csk->tcp_flags & SK_TCP_NO_DELAY_ACK)
3283                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NO_DELAY_ACK;
3284         if (csk->tcp_flags & SK_TCP_KEEP_ALIVE)
3285                 tcp_flags |= L4_KWQ_CONNECT_REQ1_KEEP_ALIVE;
3286         if (csk->tcp_flags & SK_TCP_NAGLE)
3287                 tcp_flags |= L4_KWQ_CONNECT_REQ1_NAGLE_ENABLE;
3288         if (csk->tcp_flags & SK_TCP_TIMESTAMP)
3289                 tcp_flags |= L4_KWQ_CONNECT_REQ1_TIME_STAMP;
3290         if (csk->tcp_flags & SK_TCP_SACK)
3291                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SACK;
3292         if (csk->tcp_flags & SK_TCP_SEG_SCALING)
3293                 tcp_flags |= L4_KWQ_CONNECT_REQ1_SEG_SCALING;
3294
3295         l4kwqe1->tcp_flags = tcp_flags;
3296
3297         return dev->submit_kwqes(dev, wqes, num_wqes);
3298 }
3299
3300 static int cnic_cm_close_req(struct cnic_sock *csk)
3301 {
3302         struct cnic_dev *dev = csk->dev;
3303         struct l4_kwq_close_req *l4kwqe;
3304         struct kwqe *wqes[1];
3305
3306         l4kwqe = (struct l4_kwq_close_req *) &csk->kwqe2;
3307         memset(l4kwqe, 0, sizeof(*l4kwqe));
3308         wqes[0] = (struct kwqe *) l4kwqe;
3309
3310         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_CLOSE;
3311         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_CLOSE_REQ_LAYER_CODE_SHIFT;
3312         l4kwqe->cid = csk->cid;
3313
3314         return dev->submit_kwqes(dev, wqes, 1);
3315 }
3316
3317 static int cnic_cm_abort_req(struct cnic_sock *csk)
3318 {
3319         struct cnic_dev *dev = csk->dev;
3320         struct l4_kwq_reset_req *l4kwqe;
3321         struct kwqe *wqes[1];
3322
3323         l4kwqe = (struct l4_kwq_reset_req *) &csk->kwqe2;
3324         memset(l4kwqe, 0, sizeof(*l4kwqe));
3325         wqes[0] = (struct kwqe *) l4kwqe;
3326
3327         l4kwqe->op_code = L4_KWQE_OPCODE_VALUE_RESET;
3328         l4kwqe->flags = L4_LAYER_CODE << L4_KWQ_RESET_REQ_LAYER_CODE_SHIFT;
3329         l4kwqe->cid = csk->cid;
3330
3331         return dev->submit_kwqes(dev, wqes, 1);
3332 }
3333
3334 static int cnic_cm_create(struct cnic_dev *dev, int ulp_type, u32 cid,
3335                           u32 l5_cid, struct cnic_sock **csk, void *context)
3336 {
3337         struct cnic_local *cp = dev->cnic_priv;
3338         struct cnic_sock *csk1;
3339
3340         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3341                 return -EINVAL;
3342
3343         if (cp->ctx_tbl) {
3344                 struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3345
3346                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3347                         return -EAGAIN;
3348         }
3349
3350         csk1 = &cp->csk_tbl[l5_cid];
3351         if (atomic_read(&csk1->ref_count))
3352                 return -EAGAIN;
3353
3354         if (test_and_set_bit(SK_F_INUSE, &csk1->flags))
3355                 return -EBUSY;
3356
3357         csk1->dev = dev;
3358         csk1->cid = cid;
3359         csk1->l5_cid = l5_cid;
3360         csk1->ulp_type = ulp_type;
3361         csk1->context = context;
3362
3363         csk1->ka_timeout = DEF_KA_TIMEOUT;
3364         csk1->ka_interval = DEF_KA_INTERVAL;
3365         csk1->ka_max_probe_count = DEF_KA_MAX_PROBE_COUNT;
3366         csk1->tos = DEF_TOS;
3367         csk1->ttl = DEF_TTL;
3368         csk1->snd_seq_scale = DEF_SND_SEQ_SCALE;
3369         csk1->rcv_buf = DEF_RCV_BUF;
3370         csk1->snd_buf = DEF_SND_BUF;
3371         csk1->seed = DEF_SEED;
3372
3373         *csk = csk1;
3374         return 0;
3375 }
3376
3377 static void cnic_cm_cleanup(struct cnic_sock *csk)
3378 {
3379         if (csk->src_port) {
3380                 struct cnic_dev *dev = csk->dev;
3381                 struct cnic_local *cp = dev->cnic_priv;
3382
3383                 cnic_free_id(&cp->csk_port_tbl, be16_to_cpu(csk->src_port));
3384                 csk->src_port = 0;
3385         }
3386 }
3387
3388 static void cnic_close_conn(struct cnic_sock *csk)
3389 {
3390         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags)) {
3391                 cnic_cm_upload_pg(csk);
3392                 clear_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3393         }
3394         cnic_cm_cleanup(csk);
3395 }
3396
3397 static int cnic_cm_destroy(struct cnic_sock *csk)
3398 {
3399         if (!cnic_in_use(csk))
3400                 return -EINVAL;
3401
3402         csk_hold(csk);
3403         clear_bit(SK_F_INUSE, &csk->flags);
3404         smp_mb__after_clear_bit();
3405         while (atomic_read(&csk->ref_count) != 1)
3406                 msleep(1);
3407         cnic_cm_cleanup(csk);
3408
3409         csk->flags = 0;
3410         csk_put(csk);
3411         return 0;
3412 }
3413
3414 static inline u16 cnic_get_vlan(struct net_device *dev,
3415                                 struct net_device **vlan_dev)
3416 {
3417         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3418                 *vlan_dev = vlan_dev_real_dev(dev);
3419                 return vlan_dev_vlan_id(dev);
3420         }
3421         *vlan_dev = dev;
3422         return 0;
3423 }
3424
3425 static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
3426                              struct dst_entry **dst)
3427 {
3428 #if defined(CONFIG_INET)
3429         struct rtable *rt;
3430
3431         rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
3432         if (!IS_ERR(rt)) {
3433                 *dst = &rt->dst;
3434                 return 0;
3435         }
3436         return PTR_ERR(rt);
3437 #else
3438         return -ENETUNREACH;
3439 #endif
3440 }
3441
3442 static int cnic_get_v6_route(struct sockaddr_in6 *dst_addr,
3443                              struct dst_entry **dst)
3444 {
3445 #if defined(CONFIG_IPV6) || (defined(CONFIG_IPV6_MODULE) && defined(MODULE))
3446         struct flowi6 fl6;
3447
3448         memset(&fl6, 0, sizeof(fl6));
3449         ipv6_addr_copy(&fl6.daddr, &dst_addr->sin6_addr);
3450         if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
3451                 fl6.flowi6_oif = dst_addr->sin6_scope_id;
3452
3453         *dst = ip6_route_output(&init_net, NULL, &fl6);
3454         if (*dst)
3455                 return 0;
3456 #endif
3457
3458         return -ENETUNREACH;
3459 }
3460
3461 static struct cnic_dev *cnic_cm_select_dev(struct sockaddr_in *dst_addr,
3462                                            int ulp_type)
3463 {
3464         struct cnic_dev *dev = NULL;
3465         struct dst_entry *dst;
3466         struct net_device *netdev = NULL;
3467         int err = -ENETUNREACH;
3468
3469         if (dst_addr->sin_family == AF_INET)
3470                 err = cnic_get_v4_route(dst_addr, &dst);
3471         else if (dst_addr->sin_family == AF_INET6) {
3472                 struct sockaddr_in6 *dst_addr6 =
3473                         (struct sockaddr_in6 *) dst_addr;
3474
3475                 err = cnic_get_v6_route(dst_addr6, &dst);
3476         } else
3477                 return NULL;
3478
3479         if (err)
3480                 return NULL;
3481
3482         if (!dst->dev)
3483                 goto done;
3484
3485         cnic_get_vlan(dst->dev, &netdev);
3486
3487         dev = cnic_from_netdev(netdev);
3488
3489 done:
3490         dst_release(dst);
3491         if (dev)
3492                 cnic_put(dev);
3493         return dev;
3494 }
3495
3496 static int cnic_resolve_addr(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3497 {
3498         struct cnic_dev *dev = csk->dev;
3499         struct cnic_local *cp = dev->cnic_priv;
3500
3501         return cnic_send_nlmsg(cp, ISCSI_KEVENT_PATH_REQ, csk);
3502 }
3503
3504 static int cnic_get_route(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3505 {
3506         struct cnic_dev *dev = csk->dev;
3507         struct cnic_local *cp = dev->cnic_priv;
3508         int is_v6, rc = 0;
3509         struct dst_entry *dst = NULL;
3510         struct net_device *realdev;
3511         __be16 local_port;
3512         u32 port_id;
3513
3514         if (saddr->local.v6.sin6_family == AF_INET6 &&
3515             saddr->remote.v6.sin6_family == AF_INET6)
3516                 is_v6 = 1;
3517         else if (saddr->local.v4.sin_family == AF_INET &&
3518                  saddr->remote.v4.sin_family == AF_INET)
3519                 is_v6 = 0;
3520         else
3521                 return -EINVAL;
3522
3523         clear_bit(SK_F_IPV6, &csk->flags);
3524
3525         if (is_v6) {
3526                 set_bit(SK_F_IPV6, &csk->flags);
3527                 cnic_get_v6_route(&saddr->remote.v6, &dst);
3528
3529                 memcpy(&csk->dst_ip[0], &saddr->remote.v6.sin6_addr,
3530                        sizeof(struct in6_addr));
3531                 csk->dst_port = saddr->remote.v6.sin6_port;
3532                 local_port = saddr->local.v6.sin6_port;
3533
3534         } else {
3535                 cnic_get_v4_route(&saddr->remote.v4, &dst);
3536
3537                 csk->dst_ip[0] = saddr->remote.v4.sin_addr.s_addr;
3538                 csk->dst_port = saddr->remote.v4.sin_port;
3539                 local_port = saddr->local.v4.sin_port;
3540         }
3541
3542         csk->vlan_id = 0;
3543         csk->mtu = dev->netdev->mtu;
3544         if (dst && dst->dev) {
3545                 u16 vlan = cnic_get_vlan(dst->dev, &realdev);
3546                 if (realdev == dev->netdev) {
3547                         csk->vlan_id = vlan;
3548                         csk->mtu = dst_mtu(dst);
3549                 }
3550         }
3551
3552         port_id = be16_to_cpu(local_port);
3553         if (port_id >= CNIC_LOCAL_PORT_MIN &&
3554             port_id < CNIC_LOCAL_PORT_MAX) {
3555                 if (cnic_alloc_id(&cp->csk_port_tbl, port_id))
3556                         port_id = 0;
3557         } else
3558                 port_id = 0;
3559
3560         if (!port_id) {
3561                 port_id = cnic_alloc_new_id(&cp->csk_port_tbl);
3562                 if (port_id == -1) {
3563                         rc = -ENOMEM;
3564                         goto err_out;
3565                 }
3566                 local_port = cpu_to_be16(port_id);
3567         }
3568         csk->src_port = local_port;
3569
3570 err_out:
3571         dst_release(dst);
3572         return rc;
3573 }
3574
3575 static void cnic_init_csk_state(struct cnic_sock *csk)
3576 {
3577         csk->state = 0;
3578         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3579         clear_bit(SK_F_CLOSING, &csk->flags);
3580 }
3581
3582 static int cnic_cm_connect(struct cnic_sock *csk, struct cnic_sockaddr *saddr)
3583 {
3584         struct cnic_local *cp = csk->dev->cnic_priv;
3585         int err = 0;
3586
3587         if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI)
3588                 return -EOPNOTSUPP;
3589
3590         if (!cnic_in_use(csk))
3591                 return -EINVAL;
3592
3593         if (test_and_set_bit(SK_F_CONNECT_START, &csk->flags))
3594                 return -EINVAL;
3595
3596         cnic_init_csk_state(csk);
3597
3598         err = cnic_get_route(csk, saddr);
3599         if (err)
3600                 goto err_out;
3601
3602         err = cnic_resolve_addr(csk, saddr);
3603         if (!err)
3604                 return 0;
3605
3606 err_out:
3607         clear_bit(SK_F_CONNECT_START, &csk->flags);
3608         return err;
3609 }
3610
3611 static int cnic_cm_abort(struct cnic_sock *csk)
3612 {
3613         struct cnic_local *cp = csk->dev->cnic_priv;
3614         u32 opcode = L4_KCQE_OPCODE_VALUE_RESET_COMP;
3615
3616         if (!cnic_in_use(csk))
3617                 return -EINVAL;
3618
3619         if (cnic_abort_prep(csk))
3620                 return cnic_cm_abort_req(csk);
3621
3622         /* Getting here means that we haven't started connect, or
3623          * connect was not successful.
3624          */
3625
3626         cp->close_conn(csk, opcode);
3627         if (csk->state != opcode)
3628                 return -EALREADY;
3629
3630         return 0;
3631 }
3632
3633 static int cnic_cm_close(struct cnic_sock *csk)
3634 {
3635         if (!cnic_in_use(csk))
3636                 return -EINVAL;
3637
3638         if (cnic_close_prep(csk)) {
3639                 csk->state = L4_KCQE_OPCODE_VALUE_CLOSE_COMP;
3640                 return cnic_cm_close_req(csk);
3641         } else {
3642                 return -EALREADY;
3643         }
3644         return 0;
3645 }
3646
3647 static void cnic_cm_upcall(struct cnic_local *cp, struct cnic_sock *csk,
3648                            u8 opcode)
3649 {
3650         struct cnic_ulp_ops *ulp_ops;
3651         int ulp_type = csk->ulp_type;
3652
3653         rcu_read_lock();
3654         ulp_ops = rcu_dereference(cp->ulp_ops[ulp_type]);
3655         if (ulp_ops) {
3656                 if (opcode == L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE)
3657                         ulp_ops->cm_connect_complete(csk);
3658                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3659                         ulp_ops->cm_close_complete(csk);
3660                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED)
3661                         ulp_ops->cm_remote_abort(csk);
3662                 else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP)
3663                         ulp_ops->cm_abort_complete(csk);
3664                 else if (opcode == L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED)
3665                         ulp_ops->cm_remote_close(csk);
3666         }
3667         rcu_read_unlock();
3668 }
3669
3670 static int cnic_cm_set_pg(struct cnic_sock *csk)
3671 {
3672         if (cnic_offld_prep(csk)) {
3673                 if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3674                         cnic_cm_update_pg(csk);
3675                 else
3676                         cnic_cm_offload_pg(csk);
3677         }
3678         return 0;
3679 }
3680
3681 static void cnic_cm_process_offld_pg(struct cnic_dev *dev, struct l4_kcq *kcqe)
3682 {
3683         struct cnic_local *cp = dev->cnic_priv;
3684         u32 l5_cid = kcqe->pg_host_opaque;
3685         u8 opcode = kcqe->op_code;
3686         struct cnic_sock *csk = &cp->csk_tbl[l5_cid];
3687
3688         csk_hold(csk);
3689         if (!cnic_in_use(csk))
3690                 goto done;
3691
3692         if (opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3693                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3694                 goto done;
3695         }
3696         /* Possible PG kcqe status:  SUCCESS, OFFLOADED_PG, or CTX_ALLOC_FAIL */
3697         if (kcqe->status == L4_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAIL) {
3698                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3699                 cnic_cm_upcall(cp, csk,
3700                                L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3701                 goto done;
3702         }
3703
3704         csk->pg_cid = kcqe->pg_cid;
3705         set_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags);
3706         cnic_cm_conn_req(csk);
3707
3708 done:
3709         csk_put(csk);
3710 }
3711
3712 static void cnic_process_fcoe_term_conn(struct cnic_dev *dev, struct kcqe *kcqe)
3713 {
3714         struct cnic_local *cp = dev->cnic_priv;
3715         struct fcoe_kcqe *fc_kcqe = (struct fcoe_kcqe *) kcqe;
3716         u32 l5_cid = fc_kcqe->fcoe_conn_id + BNX2X_FCOE_L5_CID_BASE;
3717         struct cnic_context *ctx = &cp->ctx_tbl[l5_cid];
3718
3719         ctx->timestamp = jiffies;
3720         ctx->wait_cond = 1;
3721         wake_up(&ctx->waitq);
3722 }
3723
3724 static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
3725 {
3726         struct cnic_local *cp = dev->cnic_priv;
3727         struct l4_kcq *l4kcqe = (struct l4_kcq *) kcqe;
3728         u8 opcode = l4kcqe->op_code;
3729         u32 l5_cid;
3730         struct cnic_sock *csk;
3731
3732         if (opcode == FCOE_RAMROD_CMD_ID_TERMINATE_CONN) {
3733                 cnic_process_fcoe_term_conn(dev, kcqe);
3734                 return;
3735         }
3736         if (opcode == L4_KCQE_OPCODE_VALUE_OFFLOAD_PG ||
3737             opcode == L4_KCQE_OPCODE_VALUE_UPDATE_PG) {
3738                 cnic_cm_process_offld_pg(dev, l4kcqe);
3739                 return;
3740         }
3741
3742         l5_cid = l4kcqe->conn_id;
3743         if (opcode & 0x80)
3744                 l5_cid = l4kcqe->cid;
3745         if (l5_cid >= MAX_CM_SK_TBL_SZ)
3746                 return;
3747
3748         csk = &cp->csk_tbl[l5_cid];
3749         csk_hold(csk);
3750
3751         if (!cnic_in_use(csk)) {
3752                 csk_put(csk);
3753                 return;
3754         }
3755
3756         switch (opcode) {
3757         case L5CM_RAMROD_CMD_ID_TCP_CONNECT:
3758                 if (l4kcqe->status != 0) {
3759                         clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3760                         cnic_cm_upcall(cp, csk,
3761                                        L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE);
3762                 }
3763                 break;
3764         case L4_KCQE_OPCODE_VALUE_CONNECT_COMPLETE:
3765                 if (l4kcqe->status == 0)
3766                         set_bit(SK_F_OFFLD_COMPLETE, &csk->flags);
3767
3768                 smp_mb__before_clear_bit();
3769                 clear_bit(SK_F_OFFLD_SCHED, &csk->flags);
3770                 cnic_cm_upcall(cp, csk, opcode);
3771                 break;
3772
3773         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3774         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3775         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3776         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3777         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3778                 cp->close_conn(csk, opcode);
3779                 break;
3780
3781         case L4_KCQE_OPCODE_VALUE_CLOSE_RECEIVED:
3782                 /* after we already sent CLOSE_REQ */
3783                 if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) &&
3784                     !test_bit(SK_F_OFFLD_COMPLETE, &csk->flags) &&
3785                     csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP)
3786                         cp->close_conn(csk, L4_KCQE_OPCODE_VALUE_RESET_COMP);
3787                 else
3788                         cnic_cm_upcall(cp, csk, opcode);
3789                 break;
3790         }
3791         csk_put(csk);
3792 }
3793
3794 static void cnic_cm_indicate_kcqe(void *data, struct kcqe *kcqe[], u32 num)
3795 {
3796         struct cnic_dev *dev = data;
3797         int i;
3798
3799         for (i = 0; i < num; i++)
3800                 cnic_cm_process_kcqe(dev, kcqe[i]);
3801 }
3802
3803 static struct cnic_ulp_ops cm_ulp_ops = {
3804         .indicate_kcqes         = cnic_cm_indicate_kcqe,
3805 };
3806
3807 static void cnic_cm_free_mem(struct cnic_dev *dev)
3808 {
3809         struct cnic_local *cp = dev->cnic_priv;
3810
3811         kfree(cp->csk_tbl);
3812         cp->csk_tbl = NULL;
3813         cnic_free_id_tbl(&cp->csk_port_tbl);
3814 }
3815
3816 static int cnic_cm_alloc_mem(struct cnic_dev *dev)
3817 {
3818         struct cnic_local *cp = dev->cnic_priv;
3819         u32 port_id;
3820
3821         cp->csk_tbl = kzalloc(sizeof(struct cnic_sock) * MAX_CM_SK_TBL_SZ,
3822                               GFP_KERNEL);
3823         if (!cp->csk_tbl)
3824                 return -ENOMEM;
3825
3826         port_id = random32();
3827         port_id %= CNIC_LOCAL_PORT_RANGE;
3828         if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
3829                              CNIC_LOCAL_PORT_MIN, port_id)) {
3830                 cnic_cm_free_mem(dev);
3831                 return -ENOMEM;
3832         }
3833         return 0;
3834 }
3835
3836 static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
3837 {
3838         if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags)) {
3839                 /* Unsolicited RESET_COMP or RESET_RECEIVED */
3840                 opcode = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
3841                 csk->state = opcode;
3842         }
3843
3844         /* 1. If event opcode matches the expected event in csk->state
3845          * 2. If the expected event is CLOSE_COMP or RESET_COMP, we accept any
3846          *    event
3847          * 3. If the expected event is 0, meaning the connection was never
3848          *    never established, we accept the opcode from cm_abort.
3849          */
3850         if (opcode == csk->state || csk->state == 0 ||
3851             csk->state == L4_KCQE_OPCODE_VALUE_CLOSE_COMP ||
3852             csk->state == L4_KCQE_OPCODE_VALUE_RESET_COMP) {
3853                 if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
3854                         if (csk->state == 0)
3855                                 csk->state = opcode;
3856                         return 1;
3857                 }
3858         }
3859         return 0;
3860 }
3861
3862 static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
3863 {
3864         struct cnic_dev *dev = csk->dev;
3865         struct cnic_local *cp = dev->cnic_priv;
3866
3867         if (opcode == L4_KCQE_OPCODE_VALUE_RESET_RECEIVED) {
3868                 cnic_cm_upcall(cp, csk, opcode);
3869                 return;
3870         }
3871
3872         clear_bit(SK_F_CONNECT_START, &csk->flags);
3873         cnic_close_conn(csk);
3874         csk->state = opcode;
3875         cnic_cm_upcall(cp, csk, opcode);
3876 }
3877
3878 static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)
3879 {
3880 }
3881
3882 static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
3883 {
3884         u32 seed;
3885
3886         seed = random32();
3887         cnic_ctx_wr(dev, 45, 0, seed);
3888         return 0;
3889 }
3890
3891 static void cnic_close_bnx2x_conn(struct cnic_sock *csk, u32 opcode)
3892 {
3893         struct cnic_dev *dev = csk->dev;
3894         struct cnic_local *cp = dev->cnic_priv;
3895         struct cnic_context *ctx = &cp->ctx_tbl[csk->l5_cid];
3896         union l5cm_specific_data l5_data;
3897         u32 cmd = 0;
3898         int close_complete = 0;
3899
3900         switch (opcode) {
3901         case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
3902         case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
3903         case L4_KCQE_OPCODE_VALUE_RESET_COMP:
3904                 if (cnic_ready_to_close(csk, opcode)) {
3905                         if (test_bit(SK_F_PG_OFFLD_COMPLETE, &csk->flags))
3906                                 cmd = L5CM_RAMROD_CMD_ID_SEARCHER_DELETE;
3907                         else
3908                                 close_complete = 1;
3909                 }
3910                 break;
3911         case L5CM_RAMROD_CMD_ID_SEARCHER_DELETE:
3912                 cmd = L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD;
3913                 break;
3914         case L5CM_RAMROD_CMD_ID_TERMINATE_OFFLOAD:
3915                 close_complete = 1;
3916                 break;
3917         }
3918         if (cmd) {
3919                 memset(&l5_data, 0, sizeof(l5_data));
3920
3921                 cnic_submit_kwqe_16(dev, cmd, csk->cid, ISCSI_CONNECTION_TYPE,
3922                                     &l5_data);
3923         } else if (close_complete) {
3924                 ctx->timestamp = jiffies;
3925                 cnic_close_conn(csk);
3926                 cnic_cm_upcall(cp, csk, csk->state);
3927         }
3928 }
3929
3930 static void cnic_cm_stop_bnx2x_hw(struct cnic_dev *dev)
3931 {
3932         struct cnic_local *cp = dev->cnic_priv;
3933         int i;
3934
3935         if (!cp->ctx_tbl)
3936                 return;
3937
3938         if (!netif_running(dev->netdev))
3939                 return;
3940
3941         for (i = 0; i < cp->max_cid_space; i++) {
3942                 struct cnic_context *ctx = &cp->ctx_tbl[i];
3943                 int j;
3944
3945                 while (test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
3946                         msleep(10);
3947
3948                 for (j = 0; j < 5; j++) {
3949                         if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3950                                 break;
3951                         msleep(20);
3952                 }
3953
3954                 if (test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags))
3955                         netdev_warn(dev->netdev, "CID %x not deleted\n",
3956                                    ctx->cid);
3957         }
3958
3959         cancel_delayed_work(&cp->delete_task);
3960         flush_workqueue(cnic_wq);
3961
3962         if (atomic_read(&cp->iscsi_conn) != 0)
3963                 netdev_warn(dev->netdev, "%d iSCSI connections not destroyed\n",
3964                             atomic_read(&cp->iscsi_conn));
3965 }
3966
3967 static int cnic_cm_init_bnx2x_hw(struct cnic_dev *dev)
3968 {
3969         struct cnic_local *cp = dev->cnic_priv;
3970         u32 pfid = cp->pfid;
3971         u32 port = CNIC_PORT(cp);
3972
3973         cnic_init_bnx2x_mac(dev);
3974         cnic_bnx2x_set_tcp_timestamp(dev, 1);
3975
3976         CNIC_WR16(dev, BAR_XSTRORM_INTMEM +
3977                   XSTORM_ISCSI_LOCAL_VLAN_OFFSET(pfid), 0);
3978
3979         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3980                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_ENABLED_OFFSET(port), 1);
3981         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3982                 XSTORM_TCP_GLOBAL_DEL_ACK_COUNTER_MAX_COUNT_OFFSET(port),
3983                 DEF_MAX_DA_COUNT);
3984
3985         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3986                  XSTORM_ISCSI_TCP_VARS_TTL_OFFSET(pfid), DEF_TTL);
3987         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3988                  XSTORM_ISCSI_TCP_VARS_TOS_OFFSET(pfid), DEF_TOS);
3989         CNIC_WR8(dev, BAR_XSTRORM_INTMEM +
3990                  XSTORM_ISCSI_TCP_VARS_ADV_WND_SCL_OFFSET(pfid), 2);
3991         CNIC_WR(dev, BAR_XSTRORM_INTMEM +
3992                 XSTORM_TCP_TX_SWS_TIMER_VAL_OFFSET(pfid), DEF_SWS_TIMER);
3993
3994         CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_TCP_MAX_CWND_OFFSET(pfid),
3995                 DEF_MAX_CWND);
3996         return 0;
3997 }
3998
3999 static void cnic_delete_task(struct work_struct *work)
4000 {
4001         struct cnic_local *cp;
4002         struct cnic_dev *dev;
4003         u32 i;
4004         int need_resched = 0;
4005
4006         cp = container_of(work, struct cnic_local, delete_task.work);
4007         dev = cp->dev;
4008
4009         if (test_and_clear_bit(CNIC_LCL_FL_STOP_ISCSI, &cp->cnic_local_flags)) {
4010                 struct drv_ctl_info info;
4011
4012                 cnic_ulp_stop_one(cp, CNIC_ULP_ISCSI);
4013
4014                 info.cmd = DRV_CTL_ISCSI_STOPPED_CMD;
4015                 cp->ethdev->drv_ctl(dev->netdev, &info);
4016         }
4017
4018         for (i = 0; i < cp->max_cid_space; i++) {
4019                 struct cnic_context *ctx = &cp->ctx_tbl[i];
4020                 int err;
4021
4022                 if (!test_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags) ||
4023                     !test_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4024                         continue;
4025
4026                 if (!time_after(jiffies, ctx->timestamp + (2 * HZ))) {
4027                         need_resched = 1;
4028                         continue;
4029                 }
4030
4031                 if (!test_and_clear_bit(CTX_FL_DELETE_WAIT, &ctx->ctx_flags))
4032                         continue;
4033
4034                 err = cnic_bnx2x_destroy_ramrod(dev, i);
4035
4036                 cnic_free_bnx2x_conn_resc(dev, i);
4037                 if (!err) {
4038                         if (ctx->ulp_proto_id == CNIC_ULP_ISCSI)
4039                                 atomic_dec(&cp->iscsi_conn);
4040
4041                         clear_bit(CTX_FL_OFFLD_START, &ctx->ctx_flags);
4042                 }
4043         }
4044
4045         if (need_resched)
4046                 queue_delayed_work(cnic_wq, &cp->delete_task,
4047                                    msecs_to_jiffies(10));
4048
4049 }
4050
4051 static int cnic_cm_open(struct cnic_dev *dev)
4052 {
4053         struct cnic_local *cp = dev->cnic_priv;
4054         int err;
4055
4056         err = cnic_cm_alloc_mem(dev);
4057         if (err)
4058                 return err;
4059
4060         err = cp->start_cm(dev);
4061
4062         if (err)
4063                 goto err_out;
4064
4065         INIT_DELAYED_WORK(&cp->delete_task, cnic_delete_task);
4066
4067         dev->cm_create = cnic_cm_create;
4068         dev->cm_destroy = cnic_cm_destroy;
4069         dev->cm_connect = cnic_cm_connect;
4070         dev->cm_abort = cnic_cm_abort;
4071         dev->cm_close = cnic_cm_close;
4072         dev->cm_select_dev = cnic_cm_select_dev;
4073
4074         cp->ulp_handle[CNIC_ULP_L4] = dev;
4075         rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], &cm_ulp_ops);
4076         return 0;
4077
4078 err_out:
4079         cnic_cm_free_mem(dev);
4080         return err;
4081 }
4082
4083 static int cnic_cm_shutdown(struct cnic_dev *dev)
4084 {
4085         struct cnic_local *cp = dev->cnic_priv;
4086         int i;
4087
4088         cp->stop_cm(dev);
4089
4090         if (!cp->csk_tbl)
4091                 return 0;
4092
4093         for (i = 0; i < MAX_CM_SK_TBL_SZ; i++) {
4094                 struct cnic_sock *csk = &cp->csk_tbl[i];
4095
4096                 clear_bit(SK_F_INUSE, &csk->flags);
4097                 cnic_cm_cleanup(csk);
4098         }
4099         cnic_cm_free_mem(dev);
4100
4101         return 0;
4102 }
4103
4104 static void cnic_init_context(struct cnic_dev *dev, u32 cid)
4105 {
4106         u32 cid_addr;
4107         int i;
4108
4109         cid_addr = GET_CID_ADDR(cid);
4110
4111         for (i = 0; i < CTX_SIZE; i += 4)
4112                 cnic_ctx_wr(dev, cid_addr, i, 0);
4113 }
4114
4115 static int cnic_setup_5709_context(struct cnic_dev *dev, int valid)
4116 {
4117         struct cnic_local *cp = dev->cnic_priv;
4118         int ret = 0, i;
4119         u32 valid_bit = valid ? BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID : 0;
4120
4121         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4122                 return 0;
4123
4124         for (i = 0; i < cp->ctx_blks; i++) {
4125                 int j;
4126                 u32 idx = cp->ctx_arr[i].cid / cp->cids_per_blk;
4127                 u32 val;
4128
4129                 memset(cp->ctx_arr[i].ctx, 0, BCM_PAGE_SIZE);
4130
4131                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA0,
4132                         (cp->ctx_arr[i].mapping & 0xffffffff) | valid_bit);
4133                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_DATA1,
4134                         (u64) cp->ctx_arr[i].mapping >> 32);
4135                 CNIC_WR(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL, idx |
4136                         BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
4137                 for (j = 0; j < 10; j++) {
4138
4139                         val = CNIC_RD(dev, BNX2_CTX_HOST_PAGE_TBL_CTRL);
4140                         if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
4141                                 break;
4142                         udelay(5);
4143                 }
4144                 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
4145                         ret = -EBUSY;
4146                         break;
4147                 }
4148         }
4149         return ret;
4150 }
4151
4152 static void cnic_free_irq(struct cnic_dev *dev)
4153 {
4154         struct cnic_local *cp = dev->cnic_priv;
4155         struct cnic_eth_dev *ethdev = cp->ethdev;
4156
4157         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4158                 cp->disable_int_sync(dev);
4159                 tasklet_kill(&cp->cnic_irq_task);
4160                 free_irq(ethdev->irq_arr[0].vector, dev);
4161         }
4162 }
4163
4164 static int cnic_request_irq(struct cnic_dev *dev)
4165 {
4166         struct cnic_local *cp = dev->cnic_priv;
4167         struct cnic_eth_dev *ethdev = cp->ethdev;
4168         int err;
4169
4170         err = request_irq(ethdev->irq_arr[0].vector, cnic_irq, 0, "cnic", dev);
4171         if (err)
4172                 tasklet_disable(&cp->cnic_irq_task);
4173
4174         return err;
4175 }
4176
4177 static int cnic_init_bnx2_irq(struct cnic_dev *dev)
4178 {
4179         struct cnic_local *cp = dev->cnic_priv;
4180         struct cnic_eth_dev *ethdev = cp->ethdev;
4181
4182         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4183                 int err, i = 0;
4184                 int sblk_num = cp->status_blk_num;
4185                 u32 base = ((sblk_num - 1) * BNX2_HC_SB_CONFIG_SIZE) +
4186                            BNX2_HC_SB_CONFIG_1;
4187
4188                 CNIC_WR(dev, base, BNX2_HC_SB_CONFIG_1_ONE_SHOT);
4189
4190                 CNIC_WR(dev, base + BNX2_HC_COMP_PROD_TRIP_OFF, (2 << 16) | 8);
4191                 CNIC_WR(dev, base + BNX2_HC_COM_TICKS_OFF, (64 << 16) | 220);
4192                 CNIC_WR(dev, base + BNX2_HC_CMD_TICKS_OFF, (64 << 16) | 220);
4193
4194                 cp->last_status_idx = cp->status_blk.bnx2->status_idx;
4195                 tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2_msix,
4196                              (unsigned long) dev);
4197                 err = cnic_request_irq(dev);
4198                 if (err)
4199                         return err;
4200
4201                 while (cp->status_blk.bnx2->status_completion_producer_index &&
4202                        i < 10) {
4203                         CNIC_WR(dev, BNX2_HC_COALESCE_NOW,
4204                                 1 << (11 + sblk_num));
4205                         udelay(10);
4206                         i++;
4207                         barrier();
4208                 }
4209                 if (cp->status_blk.bnx2->status_completion_producer_index) {
4210                         cnic_free_irq(dev);
4211                         goto failed;
4212                 }
4213
4214         } else {
4215                 struct status_block *sblk = cp->status_blk.gen;
4216                 u32 hc_cmd = CNIC_RD(dev, BNX2_HC_COMMAND);
4217                 int i = 0;
4218
4219                 while (sblk->status_completion_producer_index && i < 10) {
4220                         CNIC_WR(dev, BNX2_HC_COMMAND,
4221                                 hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
4222                         udelay(10);
4223                         i++;
4224                         barrier();
4225                 }
4226                 if (sblk->status_completion_producer_index)
4227                         goto failed;
4228
4229         }
4230         return 0;
4231
4232 failed:
4233         netdev_err(dev->netdev, "KCQ index not resetting to 0\n");
4234         return -EBUSY;
4235 }
4236
4237 static void cnic_enable_bnx2_int(struct cnic_dev *dev)
4238 {
4239         struct cnic_local *cp = dev->cnic_priv;
4240         struct cnic_eth_dev *ethdev = cp->ethdev;
4241
4242         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4243                 return;
4244
4245         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4246                 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
4247 }
4248
4249 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
4250 {
4251         struct cnic_local *cp = dev->cnic_priv;
4252         struct cnic_eth_dev *ethdev = cp->ethdev;
4253
4254         if (!(ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX))
4255                 return;
4256
4257         CNIC_WR(dev, BNX2_PCICFG_INT_ACK_CMD, cp->int_num |
4258                 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
4259         CNIC_RD(dev, BNX2_PCICFG_INT_ACK_CMD);
4260         synchronize_irq(ethdev->irq_arr[0].vector);
4261 }
4262
4263 static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev)
4264 {
4265         struct cnic_local *cp = dev->cnic_priv;
4266         struct cnic_eth_dev *ethdev = cp->ethdev;
4267         struct cnic_uio_dev *udev = cp->udev;
4268         u32 cid_addr, tx_cid, sb_id;
4269         u32 val, offset0, offset1, offset2, offset3;
4270         int i;
4271         struct tx_bd *txbd;
4272         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4273         struct status_block *s_blk = cp->status_blk.gen;
4274
4275         sb_id = cp->status_blk_num;
4276         tx_cid = 20;
4277         cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2;
4278         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4279                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4280
4281                 tx_cid = TX_TSS_CID + sb_id - 1;
4282                 CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) |
4283                         (TX_TSS_CID << 7));
4284                 cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index;
4285         }
4286         cp->tx_cons = *cp->tx_cons_ptr;
4287
4288         cid_addr = GET_CID_ADDR(tx_cid);
4289         if (CHIP_NUM(cp) == CHIP_NUM_5709) {
4290                 u32 cid_addr2 = GET_CID_ADDR(tx_cid + 4) + 0x40;
4291
4292                 for (i = 0; i < PHY_CTX_SIZE; i += 4)
4293                         cnic_ctx_wr(dev, cid_addr2, i, 0);
4294
4295                 offset0 = BNX2_L2CTX_TYPE_XI;
4296                 offset1 = BNX2_L2CTX_CMD_TYPE_XI;
4297                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
4298                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
4299         } else {
4300                 cnic_init_context(dev, tx_cid);
4301                 cnic_init_context(dev, tx_cid + 1);
4302
4303                 offset0 = BNX2_L2CTX_TYPE;
4304                 offset1 = BNX2_L2CTX_CMD_TYPE;
4305                 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
4306                 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
4307         }
4308         val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
4309         cnic_ctx_wr(dev, cid_addr, offset0, val);
4310
4311         val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
4312         cnic_ctx_wr(dev, cid_addr, offset1, val);
4313
4314         txbd = udev->l2_ring;
4315
4316         buf_map = udev->l2_buf_map;
4317         for (i = 0; i < MAX_TX_DESC_CNT; i++, txbd++) {
4318                 txbd->tx_bd_haddr_hi = (u64) buf_map >> 32;
4319                 txbd->tx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4320         }
4321         val = (u64) ring_map >> 32;
4322         cnic_ctx_wr(dev, cid_addr, offset2, val);
4323         txbd->tx_bd_haddr_hi = val;
4324
4325         val = (u64) ring_map & 0xffffffff;
4326         cnic_ctx_wr(dev, cid_addr, offset3, val);
4327         txbd->tx_bd_haddr_lo = val;
4328 }
4329
4330 static void cnic_init_bnx2_rx_ring(struct cnic_dev *dev)
4331 {
4332         struct cnic_local *cp = dev->cnic_priv;
4333         struct cnic_eth_dev *ethdev = cp->ethdev;
4334         struct cnic_uio_dev *udev = cp->udev;
4335         u32 cid_addr, sb_id, val, coal_reg, coal_val;
4336         int i;
4337         struct rx_bd *rxbd;
4338         struct status_block *s_blk = cp->status_blk.gen;
4339         dma_addr_t ring_map = udev->l2_ring_map;
4340
4341         sb_id = cp->status_blk_num;
4342         cnic_init_context(dev, 2);
4343         cp->rx_cons_ptr = &s_blk->status_rx_quick_consumer_index2;
4344         coal_reg = BNX2_HC_COMMAND;
4345         coal_val = CNIC_RD(dev, coal_reg);
4346         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4347                 struct status_block_msix *sblk = cp->status_blk.bnx2;
4348
4349                 cp->rx_cons_ptr = &sblk->status_rx_quick_consumer_index;
4350                 coal_reg = BNX2_HC_COALESCE_NOW;
4351                 coal_val = 1 << (11 + sb_id);
4352         }
4353         i = 0;
4354         while (!(*cp->rx_cons_ptr != 0) && i < 10) {
4355                 CNIC_WR(dev, coal_reg, coal_val);
4356                 udelay(10);
4357                 i++;
4358                 barrier();
4359         }
4360         cp->rx_cons = *cp->rx_cons_ptr;
4361
4362         cid_addr = GET_CID_ADDR(2);
4363         val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4364               BNX2_L2CTX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4365         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_CTX_TYPE, val);
4366
4367         if (sb_id == 0)
4368                 val = 2 << BNX2_L2CTX_L2_STATUSB_NUM_SHIFT;
4369         else
4370                 val = BNX2_L2CTX_L2_STATUSB_NUM(sb_id);
4371         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_HOST_BDIDX, val);
4372
4373         rxbd = udev->l2_ring + BCM_PAGE_SIZE;
4374         for (i = 0; i < MAX_RX_DESC_CNT; i++, rxbd++) {
4375                 dma_addr_t buf_map;
4376                 int n = (i % cp->l2_rx_ring_size) + 1;
4377
4378                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4379                 rxbd->rx_bd_len = cp->l2_single_buf_size;
4380                 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
4381                 rxbd->rx_bd_haddr_hi = (u64) buf_map >> 32;
4382                 rxbd->rx_bd_haddr_lo = (u64) buf_map & 0xffffffff;
4383         }
4384         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4385         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
4386         rxbd->rx_bd_haddr_hi = val;
4387
4388         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4389         cnic_ctx_wr(dev, cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
4390         rxbd->rx_bd_haddr_lo = val;
4391
4392         val = cnic_reg_rd_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD);
4393         cnic_reg_wr_ind(dev, BNX2_RXP_SCRATCH_RXP_FLOOD, val | (1 << 2));
4394 }
4395
4396 static void cnic_shutdown_bnx2_rx_ring(struct cnic_dev *dev)
4397 {
4398         struct kwqe *wqes[1], l2kwqe;
4399
4400         memset(&l2kwqe, 0, sizeof(l2kwqe));
4401         wqes[0] = &l2kwqe;
4402         l2kwqe.kwqe_op_flag = (L2_LAYER_CODE << KWQE_LAYER_SHIFT) |
4403                               (L2_KWQE_OPCODE_VALUE_FLUSH <<
4404                                KWQE_OPCODE_SHIFT) | 2;
4405         dev->submit_kwqes(dev, wqes, 1);
4406 }
4407
4408 static void cnic_set_bnx2_mac(struct cnic_dev *dev)
4409 {
4410         struct cnic_local *cp = dev->cnic_priv;
4411         u32 val;
4412
4413         val = cp->func << 2;
4414
4415         cp->shmem_base = cnic_reg_rd_ind(dev, BNX2_SHM_HDR_ADDR_0 + val);
4416
4417         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4418                               BNX2_PORT_HW_CFG_ISCSI_MAC_UPPER);
4419         dev->mac_addr[0] = (u8) (val >> 8);
4420         dev->mac_addr[1] = (u8) val;
4421
4422         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH4, val);
4423
4424         val = cnic_reg_rd_ind(dev, cp->shmem_base +
4425                               BNX2_PORT_HW_CFG_ISCSI_MAC_LOWER);
4426         dev->mac_addr[2] = (u8) (val >> 24);
4427         dev->mac_addr[3] = (u8) (val >> 16);
4428         dev->mac_addr[4] = (u8) (val >> 8);
4429         dev->mac_addr[5] = (u8) val;
4430
4431         CNIC_WR(dev, BNX2_EMAC_MAC_MATCH5, val);
4432
4433         val = 4 | BNX2_RPM_SORT_USER2_BC_EN;
4434         if (CHIP_NUM(cp) != CHIP_NUM_5709)
4435                 val |= BNX2_RPM_SORT_USER2_PROM_VLAN;
4436
4437         CNIC_WR(dev, BNX2_RPM_SORT_USER2, 0x0);
4438         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val);
4439         CNIC_WR(dev, BNX2_RPM_SORT_USER2, val | BNX2_RPM_SORT_USER2_ENA);
4440 }
4441
4442 static int cnic_start_bnx2_hw(struct cnic_dev *dev)
4443 {
4444         struct cnic_local *cp = dev->cnic_priv;
4445         struct cnic_eth_dev *ethdev = cp->ethdev;
4446         struct status_block *sblk = cp->status_blk.gen;
4447         u32 val, kcq_cid_addr, kwq_cid_addr;
4448         int err;
4449
4450         cnic_set_bnx2_mac(dev);
4451
4452         val = CNIC_RD(dev, BNX2_MQ_CONFIG);
4453         val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
4454         if (BCM_PAGE_BITS > 12)
4455                 val |= (12 - 8)  << 4;
4456         else
4457                 val |= (BCM_PAGE_BITS - 8)  << 4;
4458
4459         CNIC_WR(dev, BNX2_MQ_CONFIG, val);
4460
4461         CNIC_WR(dev, BNX2_HC_COMP_PROD_TRIP, (2 << 16) | 8);
4462         CNIC_WR(dev, BNX2_HC_COM_TICKS, (64 << 16) | 220);
4463         CNIC_WR(dev, BNX2_HC_CMD_TICKS, (64 << 16) | 220);
4464
4465         err = cnic_setup_5709_context(dev, 1);
4466         if (err)
4467                 return err;
4468
4469         cnic_init_context(dev, KWQ_CID);
4470         cnic_init_context(dev, KCQ_CID);
4471
4472         kwq_cid_addr = GET_CID_ADDR(KWQ_CID);
4473         cp->kwq_io_addr = MB_GET_CID_ADDR(KWQ_CID) + L5_KRNLQ_HOST_QIDX;
4474
4475         cp->max_kwq_idx = MAX_KWQ_IDX;
4476         cp->kwq_prod_idx = 0;
4477         cp->kwq_con_idx = 0;
4478         set_bit(CNIC_LCL_FL_KWQ_INIT, &cp->cnic_local_flags);
4479
4480         if (CHIP_NUM(cp) == CHIP_NUM_5706 || CHIP_NUM(cp) == CHIP_NUM_5708)
4481                 cp->kwq_con_idx_ptr = &sblk->status_rx_quick_consumer_index15;
4482         else
4483                 cp->kwq_con_idx_ptr = &sblk->status_cmd_consumer_index;
4484
4485         /* Initialize the kernel work queue context. */
4486         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4487               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4488         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_TYPE, val);
4489
4490         val = (BCM_PAGE_SIZE / sizeof(struct kwqe) - 1) << 16;
4491         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4492
4493         val = ((BCM_PAGE_SIZE / sizeof(struct kwqe)) << 16) | KWQ_PAGE_CNT;
4494         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4495
4496         val = (u32) ((u64) cp->kwq_info.pgtbl_map >> 32);
4497         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4498
4499         val = (u32) cp->kwq_info.pgtbl_map;
4500         cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4501
4502         kcq_cid_addr = GET_CID_ADDR(KCQ_CID);
4503         cp->kcq1.io_addr = MB_GET_CID_ADDR(KCQ_CID) + L5_KRNLQ_HOST_QIDX;
4504
4505         cp->kcq1.sw_prod_idx = 0;
4506         cp->kcq1.hw_prod_idx_ptr =
4507                 (u16 *) &sblk->status_completion_producer_index;
4508
4509         cp->kcq1.status_idx_ptr = (u16 *) &sblk->status_idx;
4510
4511         /* Initialize the kernel complete queue context. */
4512         val = KRNLQ_TYPE_TYPE_KRNLQ | KRNLQ_SIZE_TYPE_SIZE |
4513               (BCM_PAGE_BITS - 8) | KRNLQ_FLAGS_QE_SELF_SEQ;
4514         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_TYPE, val);
4515
4516         val = (BCM_PAGE_SIZE / sizeof(struct kcqe) - 1) << 16;
4517         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_QE_SELF_SEQ_MAX, val);
4518
4519         val = ((BCM_PAGE_SIZE / sizeof(struct kcqe)) << 16) | KCQ_PAGE_CNT;
4520         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_NPAGES, val);
4521
4522         val = (u32) ((u64) cp->kcq1.dma.pgtbl_map >> 32);
4523         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_HI, val);
4524
4525         val = (u32) cp->kcq1.dma.pgtbl_map;
4526         cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_PGTBL_HADDR_LO, val);
4527
4528         cp->int_num = 0;
4529         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) {
4530                 struct status_block_msix *msblk = cp->status_blk.bnx2;
4531                 u32 sb_id = cp->status_blk_num;
4532                 u32 sb = BNX2_L2CTX_L5_STATUSB_NUM(sb_id);
4533
4534                 cp->kcq1.hw_prod_idx_ptr =
4535                         (u16 *) &msblk->status_completion_producer_index;
4536                 cp->kcq1.status_idx_ptr = (u16 *) &msblk->status_idx;
4537                 cp->kwq_con_idx_ptr = (u16 *) &msblk->status_cmd_consumer_index;
4538                 cp->int_num = sb_id << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT;
4539                 cnic_ctx_wr(dev, kwq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4540                 cnic_ctx_wr(dev, kcq_cid_addr, L5_KRNLQ_HOST_QIDX, sb);
4541         }
4542
4543         /* Enable Commnad Scheduler notification when we write to the
4544          * host producer index of the kernel contexts. */
4545         CNIC_WR(dev, BNX2_MQ_KNL_CMD_MASK1, 2);
4546
4547         /* Enable Command Scheduler notification when we write to either
4548          * the Send Queue or Receive Queue producer indexes of the kernel
4549          * bypass contexts. */
4550         CNIC_WR(dev, BNX2_MQ_KNL_BYP_CMD_MASK1, 7);
4551         CNIC_WR(dev, BNX2_MQ_KNL_BYP_WRITE_MASK1, 7);
4552
4553         /* Notify COM when the driver post an application buffer. */
4554         CNIC_WR(dev, BNX2_MQ_KNL_RX_V2P_MASK2, 0x2000);
4555
4556         /* Set the CP and COM doorbells.  These two processors polls the
4557          * doorbell for a non zero value before running.  This must be done
4558          * after setting up the kernel queue contexts. */
4559         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 1);
4560         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 1);
4561
4562         cnic_init_bnx2_tx_ring(dev);
4563         cnic_init_bnx2_rx_ring(dev);
4564
4565         err = cnic_init_bnx2_irq(dev);
4566         if (err) {
4567                 netdev_err(dev->netdev, "cnic_init_irq failed\n");
4568                 cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
4569                 cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
4570                 return err;
4571         }
4572
4573         return 0;
4574 }
4575
4576 static void cnic_setup_bnx2x_context(struct cnic_dev *dev)
4577 {
4578         struct cnic_local *cp = dev->cnic_priv;
4579         struct cnic_eth_dev *ethdev = cp->ethdev;
4580         u32 start_offset = ethdev->ctx_tbl_offset;
4581         int i;
4582
4583         for (i = 0; i < cp->ctx_blks; i++) {
4584                 struct cnic_ctx *ctx = &cp->ctx_arr[i];
4585                 dma_addr_t map = ctx->mapping;
4586
4587                 if (cp->ctx_align) {
4588                         unsigned long mask = cp->ctx_align - 1;
4589
4590                         map = (map + mask) & ~mask;
4591                 }
4592
4593                 cnic_ctx_tbl_wr(dev, start_offset + i, map);
4594         }
4595 }
4596
4597 static int cnic_init_bnx2x_irq(struct cnic_dev *dev)
4598 {
4599         struct cnic_local *cp = dev->cnic_priv;
4600         struct cnic_eth_dev *ethdev = cp->ethdev;
4601         int err = 0;
4602
4603         tasklet_init(&cp->cnic_irq_task, cnic_service_bnx2x_bh,
4604                      (unsigned long) dev);
4605         if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX)
4606                 err = cnic_request_irq(dev);
4607
4608         return err;
4609 }
4610
4611 static inline void cnic_storm_memset_hc_disable(struct cnic_dev *dev,
4612                                                 u16 sb_id, u8 sb_index,
4613                                                 u8 disable)
4614 {
4615
4616         u32 addr = BAR_CSTRORM_INTMEM +
4617                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4618                         offsetof(struct hc_status_block_data_e1x, index_data) +
4619                         sizeof(struct hc_index_data)*sb_index +
4620                         offsetof(struct hc_index_data, flags);
4621         u16 flags = CNIC_RD16(dev, addr);
4622         /* clear and set */
4623         flags &= ~HC_INDEX_DATA_HC_ENABLED;
4624         flags |= (((~disable) << HC_INDEX_DATA_HC_ENABLED_SHIFT) &
4625                   HC_INDEX_DATA_HC_ENABLED);
4626         CNIC_WR16(dev, addr, flags);
4627 }
4628
4629 static void cnic_enable_bnx2x_int(struct cnic_dev *dev)
4630 {
4631         struct cnic_local *cp = dev->cnic_priv;
4632         u8 sb_id = cp->status_blk_num;
4633
4634         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4635                         CSTORM_STATUS_BLOCK_DATA_OFFSET(sb_id) +
4636                         offsetof(struct hc_status_block_data_e1x, index_data) +
4637                         sizeof(struct hc_index_data)*HC_INDEX_ISCSI_EQ_CONS +
4638                         offsetof(struct hc_index_data, timeout), 64 / 4);
4639         cnic_storm_memset_hc_disable(dev, sb_id, HC_INDEX_ISCSI_EQ_CONS, 0);
4640 }
4641
4642 static void cnic_disable_bnx2x_int_sync(struct cnic_dev *dev)
4643 {
4644 }
4645
4646 static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev,
4647                                     struct client_init_ramrod_data *data)
4648 {
4649         struct cnic_local *cp = dev->cnic_priv;
4650         struct cnic_uio_dev *udev = cp->udev;
4651         union eth_tx_bd_types *txbd = (union eth_tx_bd_types *) udev->l2_ring;
4652         dma_addr_t buf_map, ring_map = udev->l2_ring_map;
4653         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4654         int i;
4655         u32 cli = cp->ethdev->iscsi_l2_client_id;
4656         u32 val;
4657
4658         memset(txbd, 0, BCM_PAGE_SIZE);
4659
4660         buf_map = udev->l2_buf_map;
4661         for (i = 0; i < MAX_TX_DESC_CNT; i += 3, txbd += 3) {
4662                 struct eth_tx_start_bd *start_bd = &txbd->start_bd;
4663                 struct eth_tx_bd *reg_bd = &((txbd + 2)->reg_bd);
4664
4665                 start_bd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4666                 start_bd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4667                 reg_bd->addr_hi = start_bd->addr_hi;
4668                 reg_bd->addr_lo = start_bd->addr_lo + 0x10;
4669                 start_bd->nbytes = cpu_to_le16(0x10);
4670                 start_bd->nbd = cpu_to_le16(3);
4671                 start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
4672                 start_bd->general_data = (UNICAST_ADDRESS <<
4673                         ETH_TX_START_BD_ETH_ADDR_TYPE_SHIFT);
4674                 start_bd->general_data |= (1 << ETH_TX_START_BD_HDR_NBDS_SHIFT);
4675
4676         }
4677
4678         val = (u64) ring_map >> 32;
4679         txbd->next_bd.addr_hi = cpu_to_le32(val);
4680
4681         data->tx.tx_bd_page_base.hi = cpu_to_le32(val);
4682
4683         val = (u64) ring_map & 0xffffffff;
4684         txbd->next_bd.addr_lo = cpu_to_le32(val);
4685
4686         data->tx.tx_bd_page_base.lo = cpu_to_le32(val);
4687
4688         /* Other ramrod params */
4689         data->tx.tx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_CQ_CONS;
4690         data->tx.tx_status_block_id = BNX2X_DEF_SB_ID;
4691
4692         /* reset xstorm per client statistics */
4693         if (cli < MAX_STAT_COUNTER_ID) {
4694                 data->general.statistics_zero_flg = 1;
4695                 data->general.statistics_en_flg = 1;
4696                 data->general.statistics_counter_id = cli;
4697         }
4698
4699         cp->tx_cons_ptr =
4700                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_CQ_CONS];
4701 }
4702
4703 static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev,
4704                                     struct client_init_ramrod_data *data)
4705 {
4706         struct cnic_local *cp = dev->cnic_priv;
4707         struct cnic_uio_dev *udev = cp->udev;
4708         struct eth_rx_bd *rxbd = (struct eth_rx_bd *) (udev->l2_ring +
4709                                 BCM_PAGE_SIZE);
4710         struct eth_rx_cqe_next_page *rxcqe = (struct eth_rx_cqe_next_page *)
4711                                 (udev->l2_ring + (2 * BCM_PAGE_SIZE));
4712         struct host_sp_status_block *sb = cp->bnx2x_def_status_blk;
4713         int i;
4714         u32 cli = cp->ethdev->iscsi_l2_client_id;
4715         int cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4716         u32 val;
4717         dma_addr_t ring_map = udev->l2_ring_map;
4718
4719         /* General data */
4720         data->general.client_id = cli;
4721         data->general.activate_flg = 1;
4722         data->general.sp_client_id = cli;
4723         data->general.mtu = cpu_to_le16(cp->l2_single_buf_size - 14);
4724         data->general.func_id = cp->pfid;
4725
4726         for (i = 0; i < BNX2X_MAX_RX_DESC_CNT; i++, rxbd++) {
4727                 dma_addr_t buf_map;
4728                 int n = (i % cp->l2_rx_ring_size) + 1;
4729
4730                 buf_map = udev->l2_buf_map + (n * cp->l2_single_buf_size);
4731                 rxbd->addr_hi = cpu_to_le32((u64) buf_map >> 32);
4732                 rxbd->addr_lo = cpu_to_le32(buf_map & 0xffffffff);
4733         }
4734
4735         val = (u64) (ring_map + BCM_PAGE_SIZE) >> 32;
4736         rxbd->addr_hi = cpu_to_le32(val);
4737         data->rx.bd_page_base.hi = cpu_to_le32(val);
4738
4739         val = (u64) (ring_map + BCM_PAGE_SIZE) & 0xffffffff;
4740         rxbd->addr_lo = cpu_to_le32(val);
4741         data->rx.bd_page_base.lo = cpu_to_le32(val);
4742
4743         rxcqe += BNX2X_MAX_RCQ_DESC_CNT;
4744         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) >> 32;
4745         rxcqe->addr_hi = cpu_to_le32(val);
4746         data->rx.cqe_page_base.hi = cpu_to_le32(val);
4747
4748         val = (u64) (ring_map + (2 * BCM_PAGE_SIZE)) & 0xffffffff;
4749         rxcqe->addr_lo = cpu_to_le32(val);
4750         data->rx.cqe_page_base.lo = cpu_to_le32(val);
4751
4752         /* Other ramrod params */
4753         data->rx.client_qzone_id = cl_qzone_id;
4754         data->rx.rx_sb_index_number = HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS;
4755         data->rx.status_block_id = BNX2X_DEF_SB_ID;
4756
4757         data->rx.cache_line_alignment_log_size = L1_CACHE_SHIFT;
4758
4759         data->rx.max_bytes_on_bd = cpu_to_le16(cp->l2_single_buf_size);
4760         data->rx.outer_vlan_removal_enable_flg = 1;
4761         data->rx.silent_vlan_removal_flg = 1;
4762         data->rx.silent_vlan_value = 0;
4763         data->rx.silent_vlan_mask = 0xffff;
4764
4765         cp->rx_cons_ptr =
4766                 &sb->sp_sb.index_values[HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS];
4767         cp->rx_cons = *cp->rx_cons_ptr;
4768 }
4769
4770 static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)
4771 {
4772         struct cnic_local *cp = dev->cnic_priv;
4773         u32 pfid = cp->pfid;
4774
4775         cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +
4776                            CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);
4777         cp->kcq1.sw_prod_idx = 0;
4778
4779         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
4780                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4781
4782                 cp->kcq1.hw_prod_idx_ptr =
4783                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4784                 cp->kcq1.status_idx_ptr =
4785                         &sb->sb.running_index[SM_RX_ID];
4786         } else {
4787                 struct host_hc_status_block_e1x *sb = cp->status_blk.gen;
4788
4789                 cp->kcq1.hw_prod_idx_ptr =
4790                         &sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];
4791                 cp->kcq1.status_idx_ptr =
4792                         &sb->sb.running_index[SM_RX_ID];
4793         }
4794
4795         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
4796                 struct host_hc_status_block_e2 *sb = cp->status_blk.gen;
4797
4798                 cp->kcq2.io_addr = BAR_USTRORM_INTMEM +
4799                                         USTORM_FCOE_EQ_PROD_OFFSET(pfid);
4800                 cp->kcq2.sw_prod_idx = 0;
4801                 cp->kcq2.hw_prod_idx_ptr =
4802                         &sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];
4803                 cp->kcq2.status_idx_ptr =
4804                         &sb->sb.running_index[SM_RX_ID];
4805         }
4806 }
4807
4808 static int cnic_start_bnx2x_hw(struct cnic_dev *dev)
4809 {
4810         struct cnic_local *cp = dev->cnic_priv;
4811         struct cnic_eth_dev *ethdev = cp->ethdev;
4812         int func = CNIC_FUNC(cp), ret;
4813         u32 pfid;
4814
4815         cp->port_mode = CHIP_PORT_MODE_NONE;
4816
4817         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
4818                 u32 val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN_OVWR);
4819
4820                 if (!(val & 1))
4821                         val = CNIC_RD(dev, MISC_REG_PORT4MODE_EN);
4822                 else
4823                         val = (val >> 1) & 1;
4824
4825                 if (val) {
4826                         cp->port_mode = CHIP_4_PORT_MODE;
4827                         cp->pfid = func >> 1;
4828                 } else {
4829                         cp->port_mode = CHIP_2_PORT_MODE;
4830                         cp->pfid = func & 0x6;
4831                 }
4832         } else {
4833                 cp->pfid = func;
4834         }
4835         pfid = cp->pfid;
4836
4837         ret = cnic_init_id_tbl(&cp->cid_tbl, MAX_ISCSI_TBL_SZ,
4838                                cp->iscsi_start_cid, 0);
4839
4840         if (ret)
4841                 return -ENOMEM;
4842
4843         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id)) {
4844                 ret = cnic_init_id_tbl(&cp->fcoe_cid_tbl,
4845                                         BNX2X_FCOE_NUM_CONNECTIONS,
4846                                         cp->fcoe_start_cid, 0);
4847
4848                 if (ret)
4849                         return -ENOMEM;
4850         }
4851
4852         cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;
4853
4854         cnic_init_bnx2x_kcq(dev);
4855
4856         /* Only 1 EQ */
4857         CNIC_WR16(dev, cp->kcq1.io_addr, MAX_KCQ_IDX);
4858         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4859                 CSTORM_ISCSI_EQ_CONS_OFFSET(pfid, 0), 0);
4860         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4861                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0),
4862                 cp->kcq1.dma.pg_map_arr[1] & 0xffffffff);
4863         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4864                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_OFFSET(pfid, 0) + 4,
4865                 (u64) cp->kcq1.dma.pg_map_arr[1] >> 32);
4866         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4867                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0),
4868                 cp->kcq1.dma.pg_map_arr[0] & 0xffffffff);
4869         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
4870                 CSTORM_ISCSI_EQ_NEXT_EQE_ADDR_OFFSET(pfid, 0) + 4,
4871                 (u64) cp->kcq1.dma.pg_map_arr[0] >> 32);
4872         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4873                 CSTORM_ISCSI_EQ_NEXT_PAGE_ADDR_VALID_OFFSET(pfid, 0), 1);
4874         CNIC_WR16(dev, BAR_CSTRORM_INTMEM +
4875                 CSTORM_ISCSI_EQ_SB_NUM_OFFSET(pfid, 0), cp->status_blk_num);
4876         CNIC_WR8(dev, BAR_CSTRORM_INTMEM +
4877                 CSTORM_ISCSI_EQ_SB_INDEX_OFFSET(pfid, 0),
4878                 HC_INDEX_ISCSI_EQ_CONS);
4879
4880         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4881                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid),
4882                 cp->gbl_buf_info.pg_map_arr[0] & 0xffffffff);
4883         CNIC_WR(dev, BAR_USTRORM_INTMEM +
4884                 USTORM_ISCSI_GLOBAL_BUF_PHYS_ADDR_OFFSET(pfid) + 4,
4885                 (u64) cp->gbl_buf_info.pg_map_arr[0] >> 32);
4886
4887         CNIC_WR(dev, BAR_TSTRORM_INTMEM +
4888                 TSTORM_ISCSI_TCP_LOCAL_ADV_WND_OFFSET(pfid), DEF_RCV_BUF);
4889
4890         cnic_setup_bnx2x_context(dev);
4891
4892         ret = cnic_init_bnx2x_irq(dev);
4893         if (ret)
4894                 return ret;
4895
4896         return 0;
4897 }
4898
4899 static void cnic_init_rings(struct cnic_dev *dev)
4900 {
4901         struct cnic_local *cp = dev->cnic_priv;
4902         struct cnic_uio_dev *udev = cp->udev;
4903
4904         if (test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4905                 return;
4906
4907         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4908                 cnic_init_bnx2_tx_ring(dev);
4909                 cnic_init_bnx2_rx_ring(dev);
4910                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4911         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4912                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4913                 u32 cid = cp->ethdev->iscsi_l2_cid;
4914                 u32 cl_qzone_id;
4915                 struct client_init_ramrod_data *data;
4916                 union l5cm_specific_data l5_data;
4917                 struct ustorm_eth_rx_producers rx_prods = {0};
4918                 u32 off, i, *cid_ptr;
4919
4920                 rx_prods.bd_prod = 0;
4921                 rx_prods.cqe_prod = BNX2X_MAX_RCQ_DESC_CNT;
4922                 barrier();
4923
4924                 cl_qzone_id = BNX2X_CL_QZONE_ID(cp, cli);
4925
4926                 off = BAR_USTRORM_INTMEM +
4927                         (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) ?
4928                          USTORM_RX_PRODS_E2_OFFSET(cl_qzone_id) :
4929                          USTORM_RX_PRODS_E1X_OFFSET(CNIC_PORT(cp), cli));
4930
4931                 for (i = 0; i < sizeof(struct ustorm_eth_rx_producers) / 4; i++)
4932                         CNIC_WR(dev, off + i * 4, ((u32 *) &rx_prods)[i]);
4933
4934                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4935
4936                 data = udev->l2_buf;
4937                 cid_ptr = udev->l2_buf + 12;
4938
4939                 memset(data, 0, sizeof(*data));
4940
4941                 cnic_init_bnx2x_tx_ring(dev, data);
4942                 cnic_init_bnx2x_rx_ring(dev, data);
4943
4944                 l5_data.phy_address.lo = udev->l2_buf_map & 0xffffffff;
4945                 l5_data.phy_address.hi = (u64) udev->l2_buf_map >> 32;
4946
4947                 set_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
4948
4949                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_CLIENT_SETUP,
4950                         cid, ETH_CONNECTION_TYPE, &l5_data);
4951
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_SETUP did not complete\n");
4960                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
4961                 cnic_ring_ctl(dev, cid, cli, 1);
4962                 *cid_ptr = cid;
4963         }
4964 }
4965
4966 static void cnic_shutdown_rings(struct cnic_dev *dev)
4967 {
4968         struct cnic_local *cp = dev->cnic_priv;
4969         struct cnic_uio_dev *udev = cp->udev;
4970         void *rx_ring;
4971
4972         if (!test_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags))
4973                 return;
4974
4975         if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
4976                 cnic_shutdown_bnx2_rx_ring(dev);
4977         } else if (test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
4978                 u32 cli = cp->ethdev->iscsi_l2_client_id;
4979                 u32 cid = cp->ethdev->iscsi_l2_cid;
4980                 union l5cm_specific_data l5_data;
4981                 int i;
4982
4983                 cnic_ring_ctl(dev, cid, cli, 0);
4984
4985                 set_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags);
4986
4987                 l5_data.phy_address.lo = cli;
4988                 l5_data.phy_address.hi = 0;
4989                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_ETH_HALT,
4990                         cid, ETH_CONNECTION_TYPE, &l5_data);
4991                 i = 0;
4992                 while (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags) &&
4993                        ++i < 10)
4994                         msleep(1);
4995
4996                 if (test_bit(CNIC_LCL_FL_L2_WAIT, &cp->cnic_local_flags))
4997                         netdev_err(dev->netdev,
4998                                 "iSCSI CLIENT_HALT did not complete\n");
4999                 cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1);
5000
5001                 memset(&l5_data, 0, sizeof(l5_data));
5002                 cnic_submit_kwqe_16(dev, RAMROD_CMD_ID_COMMON_CFC_DEL,
5003                         cid, NONE_CONNECTION_TYPE, &l5_data);
5004                 msleep(10);
5005         }
5006         clear_bit(CNIC_LCL_FL_RINGS_INITED, &cp->cnic_local_flags);
5007         rx_ring = udev->l2_ring + BCM_PAGE_SIZE;
5008         memset(rx_ring, 0, BCM_PAGE_SIZE);
5009 }
5010
5011 static int cnic_register_netdev(struct cnic_dev *dev)
5012 {
5013         struct cnic_local *cp = dev->cnic_priv;
5014         struct cnic_eth_dev *ethdev = cp->ethdev;
5015         int err;
5016
5017         if (!ethdev)
5018                 return -ENODEV;
5019
5020         if (ethdev->drv_state & CNIC_DRV_STATE_REGD)
5021                 return 0;
5022
5023         err = ethdev->drv_register_cnic(dev->netdev, cp->cnic_ops, dev);
5024         if (err)
5025                 netdev_err(dev->netdev, "register_cnic failed\n");
5026
5027         return err;
5028 }
5029
5030 static void cnic_unregister_netdev(struct cnic_dev *dev)
5031 {
5032         struct cnic_local *cp = dev->cnic_priv;
5033         struct cnic_eth_dev *ethdev = cp->ethdev;
5034
5035         if (!ethdev)
5036                 return;
5037
5038         ethdev->drv_unregister_cnic(dev->netdev);
5039 }
5040
5041 static int cnic_start_hw(struct cnic_dev *dev)
5042 {
5043         struct cnic_local *cp = dev->cnic_priv;
5044         struct cnic_eth_dev *ethdev = cp->ethdev;
5045         int err;
5046
5047         if (test_bit(CNIC_F_CNIC_UP, &dev->flags))
5048                 return -EALREADY;
5049
5050         dev->regview = ethdev->io_base;
5051         pci_dev_get(dev->pcidev);
5052         cp->func = PCI_FUNC(dev->pcidev->devfn);
5053         cp->status_blk.gen = ethdev->irq_arr[0].status_blk;
5054         cp->status_blk_num = ethdev->irq_arr[0].status_blk_num;
5055
5056         err = cp->alloc_resc(dev);
5057         if (err) {
5058                 netdev_err(dev->netdev, "allocate resource failure\n");
5059                 goto err1;
5060         }
5061
5062         err = cp->start_hw(dev);
5063         if (err)
5064                 goto err1;
5065
5066         err = cnic_cm_open(dev);
5067         if (err)
5068                 goto err1;
5069
5070         set_bit(CNIC_F_CNIC_UP, &dev->flags);
5071
5072         cp->enable_int(dev);
5073
5074         return 0;
5075
5076 err1:
5077         cp->free_resc(dev);
5078         pci_dev_put(dev->pcidev);
5079         return err;
5080 }
5081
5082 static void cnic_stop_bnx2_hw(struct cnic_dev *dev)
5083 {
5084         cnic_disable_bnx2_int_sync(dev);
5085
5086         cnic_reg_wr_ind(dev, BNX2_CP_SCRATCH + 0x20, 0);
5087         cnic_reg_wr_ind(dev, BNX2_COM_SCRATCH + 0x20, 0);
5088
5089         cnic_init_context(dev, KWQ_CID);
5090         cnic_init_context(dev, KCQ_CID);
5091
5092         cnic_setup_5709_context(dev, 0);
5093         cnic_free_irq(dev);
5094
5095         cnic_free_resc(dev);
5096 }
5097
5098
5099 static void cnic_stop_bnx2x_hw(struct cnic_dev *dev)
5100 {
5101         struct cnic_local *cp = dev->cnic_priv;
5102
5103         cnic_free_irq(dev);
5104         *cp->kcq1.hw_prod_idx_ptr = 0;
5105         CNIC_WR(dev, BAR_CSTRORM_INTMEM +
5106                 CSTORM_ISCSI_EQ_CONS_OFFSET(cp->pfid, 0), 0);
5107         CNIC_WR16(dev, cp->kcq1.io_addr, 0);
5108         cnic_free_resc(dev);
5109 }
5110
5111 static void cnic_stop_hw(struct cnic_dev *dev)
5112 {
5113         if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5114                 struct cnic_local *cp = dev->cnic_priv;
5115                 int i = 0;
5116
5117                 /* Need to wait for the ring shutdown event to complete
5118                  * before clearing the CNIC_UP flag.
5119                  */
5120                 while (cp->udev->uio_dev != -1 && i < 15) {
5121                         msleep(100);
5122                         i++;
5123                 }
5124                 cnic_shutdown_rings(dev);
5125                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
5126                 rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], NULL);
5127                 synchronize_rcu();
5128                 cnic_cm_shutdown(dev);
5129                 cp->stop_hw(dev);
5130                 pci_dev_put(dev->pcidev);
5131         }
5132 }
5133
5134 static void cnic_free_dev(struct cnic_dev *dev)
5135 {
5136         int i = 0;
5137
5138         while ((atomic_read(&dev->ref_count) != 0) && i < 10) {
5139                 msleep(100);
5140                 i++;
5141         }
5142         if (atomic_read(&dev->ref_count) != 0)
5143                 netdev_err(dev->netdev, "Failed waiting for ref count to go to zero\n");
5144
5145         netdev_info(dev->netdev, "Removed CNIC device\n");
5146         dev_put(dev->netdev);
5147         kfree(dev);
5148 }
5149
5150 static struct cnic_dev *cnic_alloc_dev(struct net_device *dev,
5151                                        struct pci_dev *pdev)
5152 {
5153         struct cnic_dev *cdev;
5154         struct cnic_local *cp;
5155         int alloc_size;
5156
5157         alloc_size = sizeof(struct cnic_dev) + sizeof(struct cnic_local);
5158
5159         cdev = kzalloc(alloc_size , GFP_KERNEL);
5160         if (cdev == NULL) {
5161                 netdev_err(dev, "allocate dev struct failure\n");
5162                 return NULL;
5163         }
5164
5165         cdev->netdev = dev;
5166         cdev->cnic_priv = (char *)cdev + sizeof(struct cnic_dev);
5167         cdev->register_device = cnic_register_device;
5168         cdev->unregister_device = cnic_unregister_device;
5169         cdev->iscsi_nl_msg_recv = cnic_iscsi_nl_msg_recv;
5170
5171         cp = cdev->cnic_priv;
5172         cp->dev = cdev;
5173         cp->l2_single_buf_size = 0x400;
5174         cp->l2_rx_ring_size = 3;
5175
5176         spin_lock_init(&cp->cnic_ulp_lock);
5177
5178         netdev_info(dev, "Added CNIC device\n");
5179
5180         return cdev;
5181 }
5182
5183 static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
5184 {
5185         struct pci_dev *pdev;
5186         struct cnic_dev *cdev;
5187         struct cnic_local *cp;
5188         struct cnic_eth_dev *ethdev = NULL;
5189         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5190
5191         probe = symbol_get(bnx2_cnic_probe);
5192         if (probe) {
5193                 ethdev = (*probe)(dev);
5194                 symbol_put(bnx2_cnic_probe);
5195         }
5196         if (!ethdev)
5197                 return NULL;
5198
5199         pdev = ethdev->pdev;
5200         if (!pdev)
5201                 return NULL;
5202
5203         dev_hold(dev);
5204         pci_dev_get(pdev);
5205         if ((pdev->device == PCI_DEVICE_ID_NX2_5709 ||
5206              pdev->device == PCI_DEVICE_ID_NX2_5709S) &&
5207             (pdev->revision < 0x10)) {
5208                 pci_dev_put(pdev);
5209                 goto cnic_err;
5210         }
5211         pci_dev_put(pdev);
5212
5213         cdev = cnic_alloc_dev(dev, pdev);
5214         if (cdev == NULL)
5215                 goto cnic_err;
5216
5217         set_bit(CNIC_F_BNX2_CLASS, &cdev->flags);
5218         cdev->submit_kwqes = cnic_submit_bnx2_kwqes;
5219
5220         cp = cdev->cnic_priv;
5221         cp->ethdev = ethdev;
5222         cdev->pcidev = pdev;
5223         cp->chip_id = ethdev->chip_id;
5224
5225         cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5226
5227         cp->cnic_ops = &cnic_bnx2_ops;
5228         cp->start_hw = cnic_start_bnx2_hw;
5229         cp->stop_hw = cnic_stop_bnx2_hw;
5230         cp->setup_pgtbl = cnic_setup_page_tbl;
5231         cp->alloc_resc = cnic_alloc_bnx2_resc;
5232         cp->free_resc = cnic_free_resc;
5233         cp->start_cm = cnic_cm_init_bnx2_hw;
5234         cp->stop_cm = cnic_cm_stop_bnx2_hw;
5235         cp->enable_int = cnic_enable_bnx2_int;
5236         cp->disable_int_sync = cnic_disable_bnx2_int_sync;
5237         cp->close_conn = cnic_close_bnx2_conn;
5238         return cdev;
5239
5240 cnic_err:
5241         dev_put(dev);
5242         return NULL;
5243 }
5244
5245 static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
5246 {
5247         struct pci_dev *pdev;
5248         struct cnic_dev *cdev;
5249         struct cnic_local *cp;
5250         struct cnic_eth_dev *ethdev = NULL;
5251         struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
5252
5253         probe = symbol_get(bnx2x_cnic_probe);
5254         if (probe) {
5255                 ethdev = (*probe)(dev);
5256                 symbol_put(bnx2x_cnic_probe);
5257         }
5258         if (!ethdev)
5259                 return NULL;
5260
5261         pdev = ethdev->pdev;
5262         if (!pdev)
5263                 return NULL;
5264
5265         dev_hold(dev);
5266         cdev = cnic_alloc_dev(dev, pdev);
5267         if (cdev == NULL) {
5268                 dev_put(dev);
5269                 return NULL;
5270         }
5271
5272         set_bit(CNIC_F_BNX2X_CLASS, &cdev->flags);
5273         cdev->submit_kwqes = cnic_submit_bnx2x_kwqes;
5274
5275         cp = cdev->cnic_priv;
5276         cp->ethdev = ethdev;
5277         cdev->pcidev = pdev;
5278         cp->chip_id = ethdev->chip_id;
5279
5280         if (!(ethdev->drv_state & CNIC_DRV_STATE_NO_ISCSI))
5281                 cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
5282         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id) &&
5283             !(ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE))
5284                 cdev->max_fcoe_conn = ethdev->max_fcoe_conn;
5285
5286         memcpy(cdev->mac_addr, ethdev->iscsi_mac, 6);
5287
5288         cp->cnic_ops = &cnic_bnx2x_ops;
5289         cp->start_hw = cnic_start_bnx2x_hw;
5290         cp->stop_hw = cnic_stop_bnx2x_hw;
5291         cp->setup_pgtbl = cnic_setup_page_tbl_le;
5292         cp->alloc_resc = cnic_alloc_bnx2x_resc;
5293         cp->free_resc = cnic_free_resc;
5294         cp->start_cm = cnic_cm_init_bnx2x_hw;
5295         cp->stop_cm = cnic_cm_stop_bnx2x_hw;
5296         cp->enable_int = cnic_enable_bnx2x_int;
5297         cp->disable_int_sync = cnic_disable_bnx2x_int_sync;
5298         if (BNX2X_CHIP_IS_E2_PLUS(cp->chip_id))
5299                 cp->ack_int = cnic_ack_bnx2x_e2_msix;
5300         else
5301                 cp->ack_int = cnic_ack_bnx2x_msix;
5302         cp->close_conn = cnic_close_bnx2x_conn;
5303         return cdev;
5304 }
5305
5306 static struct cnic_dev *is_cnic_dev(struct net_device *dev)
5307 {
5308         struct ethtool_drvinfo drvinfo;
5309         struct cnic_dev *cdev = NULL;
5310
5311         if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
5312                 memset(&drvinfo, 0, sizeof(drvinfo));
5313                 dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
5314
5315                 if (!strcmp(drvinfo.driver, "bnx2"))
5316                         cdev = init_bnx2_cnic(dev);
5317                 if (!strcmp(drvinfo.driver, "bnx2x"))
5318                         cdev = init_bnx2x_cnic(dev);
5319                 if (cdev) {
5320                         write_lock(&cnic_dev_lock);
5321                         list_add(&cdev->list, &cnic_dev_list);
5322                         write_unlock(&cnic_dev_lock);
5323                 }
5324         }
5325         return cdev;
5326 }
5327
5328 /**
5329  * netdev event handler
5330  */
5331 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
5332                                                          void *ptr)
5333 {
5334         struct net_device *netdev = ptr;
5335         struct cnic_dev *dev;
5336         int if_type;
5337         int new_dev = 0;
5338
5339         dev = cnic_from_netdev(netdev);
5340
5341         if (!dev && (event == NETDEV_REGISTER || netif_running(netdev))) {
5342                 /* Check for the hot-plug device */
5343                 dev = is_cnic_dev(netdev);
5344                 if (dev) {
5345                         new_dev = 1;
5346                         cnic_hold(dev);
5347                 }
5348         }
5349         if (dev) {
5350                 struct cnic_local *cp = dev->cnic_priv;
5351
5352                 if (new_dev)
5353                         cnic_ulp_init(dev);
5354                 else if (event == NETDEV_UNREGISTER)
5355                         cnic_ulp_exit(dev);
5356
5357                 if (event == NETDEV_UP || (new_dev && netif_running(netdev))) {
5358                         if (cnic_register_netdev(dev) != 0) {
5359                                 cnic_put(dev);
5360                                 goto done;
5361                         }
5362                         if (!cnic_start_hw(dev))
5363                                 cnic_ulp_start(dev);
5364                 }
5365
5366                 rcu_read_lock();
5367                 for (if_type = 0; if_type < MAX_CNIC_ULP_TYPE; if_type++) {
5368                         struct cnic_ulp_ops *ulp_ops;
5369                         void *ctx;
5370
5371                         ulp_ops = rcu_dereference(cp->ulp_ops[if_type]);
5372                         if (!ulp_ops || !ulp_ops->indicate_netevent)
5373                                 continue;
5374
5375                         ctx = cp->ulp_handle[if_type];
5376
5377                         ulp_ops->indicate_netevent(ctx, event);
5378                 }
5379                 rcu_read_unlock();
5380
5381                 if (event == NETDEV_GOING_DOWN) {
5382                         cnic_ulp_stop(dev);
5383                         cnic_stop_hw(dev);
5384                         cnic_unregister_netdev(dev);
5385                 } else if (event == NETDEV_UNREGISTER) {
5386                         write_lock(&cnic_dev_lock);
5387                         list_del_init(&dev->list);
5388                         write_unlock(&cnic_dev_lock);
5389
5390                         cnic_put(dev);
5391                         cnic_free_dev(dev);
5392                         goto done;
5393                 }
5394                 cnic_put(dev);
5395         }
5396 done:
5397         return NOTIFY_DONE;
5398 }
5399
5400 static struct notifier_block cnic_netdev_notifier = {
5401         .notifier_call = cnic_netdev_event
5402 };
5403
5404 static void cnic_release(void)
5405 {
5406         struct cnic_dev *dev;
5407         struct cnic_uio_dev *udev;
5408
5409         while (!list_empty(&cnic_dev_list)) {
5410                 dev = list_entry(cnic_dev_list.next, struct cnic_dev, list);
5411                 if (test_bit(CNIC_F_CNIC_UP, &dev->flags)) {
5412                         cnic_ulp_stop(dev);
5413                         cnic_stop_hw(dev);
5414                 }
5415
5416                 cnic_ulp_exit(dev);
5417                 cnic_unregister_netdev(dev);
5418                 list_del_init(&dev->list);
5419                 cnic_free_dev(dev);
5420         }
5421         while (!list_empty(&cnic_udev_list)) {
5422                 udev = list_entry(cnic_udev_list.next, struct cnic_uio_dev,
5423                                   list);
5424                 cnic_free_uio(udev);
5425         }
5426 }
5427
5428 static int __init cnic_init(void)
5429 {
5430         int rc = 0;
5431
5432         pr_info("%s", version);
5433
5434         rc = register_netdevice_notifier(&cnic_netdev_notifier);
5435         if (rc) {
5436                 cnic_release();
5437                 return rc;
5438         }
5439
5440         cnic_wq = create_singlethread_workqueue("cnic_wq");
5441         if (!cnic_wq) {
5442                 cnic_release();
5443                 unregister_netdevice_notifier(&cnic_netdev_notifier);
5444                 return -ENOMEM;
5445         }
5446
5447         return 0;
5448 }
5449
5450 static void __exit cnic_exit(void)
5451 {
5452         unregister_netdevice_notifier(&cnic_netdev_notifier);
5453         cnic_release();
5454         destroy_workqueue(cnic_wq);
5455 }
5456
5457 module_init(cnic_init);
5458 module_exit(cnic_exit);