drivers/net/cxgb3/cxgb3_offload.c

   1 /*
   2  * Copyright (c) 2006-2007 Chelsio, Inc. All rights reserved.
   3  * Copyright (c) 2006-2007 Open Grid Computing, Inc. All rights reserved.
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * General Public License (GPL) Version 2, available from the file
   8  * COPYING in the main directory of this source tree, or the
   9  * OpenIB.org BSD license below:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      - Redistributions of source code must retain the above
  16  *        copyright notice, this list of conditions and the following
  17  *        disclaimer.
  18  *
  19  *      - Redistributions in binary form must reproduce the above
  20  *        copyright notice, this list of conditions and the following
  21  *        disclaimer in the documentation and/or other materials
  22  *        provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  */
  33
  34 #include <linux/list.h>
  35 #include <net/neighbour.h>
  36 #include <linux/notifier.h>
  37 #include <asm/atomic.h>
  38 #include <linux/proc_fs.h>
  39 #include <linux/if_vlan.h>
  40 #include <net/netevent.h>
  41 #include <linux/highmem.h>
  42 #include <linux/vmalloc.h>
  43
  44 #include "common.h"
  45 #include "regs.h"
  46 #include "cxgb3_ioctl.h"
  47 #include "cxgb3_ctl_defs.h"
  48 #include "cxgb3_defs.h"
  49 #include "l2t.h"
  50 #include "firmware_exports.h"
  51 #include "cxgb3_offload.h"
  52
  53 static LIST_HEAD(client_list);
  54 static LIST_HEAD(ofld_dev_list);
  55 static DEFINE_MUTEX(cxgb3_db_lock);
  56
  57 static DEFINE_RWLOCK(adapter_list_lock);
  58 static LIST_HEAD(adapter_list);
  59
  60 static const unsigned int MAX_ATIDS = 64 * 1024;
  61 static const unsigned int ATID_BASE = 0x100000;
  62
  63 static inline int offload_activated(struct t3cdev *tdev)
  64 {
  65         const struct adapter *adapter = tdev2adap(tdev);
  66
  67         return (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map));
  68 }
  69
  70 /**
  71  *      cxgb3_register_client - register an offload client
  72  *      @client: the client
  73  *
  74  *      Add the client to the client list,
  75  *      and call backs the client for each activated offload device
  76  */
  77 void cxgb3_register_client(struct cxgb3_client *client)
  78 {
  79         struct t3cdev *tdev;
  80
  81         mutex_lock(&cxgb3_db_lock);
  82         list_add_tail(&client->client_list, &client_list);
  83
  84         if (client->add) {
  85                 list_for_each_entry(tdev, &ofld_dev_list, ofld_dev_list) {
  86                         if (offload_activated(tdev))
  87                                 client->add(tdev);
  88                 }
  89         }
  90         mutex_unlock(&cxgb3_db_lock);
  91 }
  92
  93 EXPORT_SYMBOL(cxgb3_register_client);
  94
  95 /**
  96  *      cxgb3_unregister_client - unregister an offload client
  97  *      @client: the client
  98  *
  99  *      Remove the client to the client list,
 100  *      and call backs the client for each activated offload device.
 101  */
 102 void cxgb3_unregister_client(struct cxgb3_client *client)
 103 {
 104         struct t3cdev *tdev;
 105
 106         mutex_lock(&cxgb3_db_lock);
 107         list_del(&client->client_list);
 108
 109         if (client->remove) {
 110                 list_for_each_entry(tdev, &ofld_dev_list, ofld_dev_list) {
 111                         if (offload_activated(tdev))
 112                                 client->remove(tdev);
 113                 }
 114         }
 115         mutex_unlock(&cxgb3_db_lock);
 116 }
 117
 118 EXPORT_SYMBOL(cxgb3_unregister_client);
 119
 120 /**
 121  *      cxgb3_add_clients - activate registered clients for an offload device
 122  *      @tdev: the offload device
 123  *
 124  *      Call backs all registered clients once a offload device is activated
 125  */
 126 void cxgb3_add_clients(struct t3cdev *tdev)
 127 {
 128         struct cxgb3_client *client;
 129
 130         mutex_lock(&cxgb3_db_lock);
 131         list_for_each_entry(client, &client_list, client_list) {
 132                 if (client->add)
 133                         client->add(tdev);
 134         }
 135         mutex_unlock(&cxgb3_db_lock);
 136 }
 137
 138 /**
 139  *      cxgb3_remove_clients - deactivates registered clients
 140  *                             for an offload device
 141  *      @tdev: the offload device
 142  *
 143  *      Call backs all registered clients once a offload device is deactivated
 144  */
 145 void cxgb3_remove_clients(struct t3cdev *tdev)
 146 {
 147         struct cxgb3_client *client;
 148
 149         mutex_lock(&cxgb3_db_lock);
 150         list_for_each_entry(client, &client_list, client_list) {
 151                 if (client->remove)
 152                         client->remove(tdev);
 153         }
 154         mutex_unlock(&cxgb3_db_lock);
 155 }
 156
 157 static struct net_device *get_iff_from_mac(struct adapter *adapter,
 158                                            const unsigned char *mac,
 159                                            unsigned int vlan)
 160 {
 161         int i;
 162
 163         for_each_port(adapter, i) {
 164                 const struct vlan_group *grp;
 165                 struct net_device *dev = adapter->port[i];
 166                 const struct port_info *p = netdev_priv(dev);
 167
 168                 if (!memcmp(dev->dev_addr, mac, ETH_ALEN)) {
 169                         if (vlan && vlan != VLAN_VID_MASK) {
 170                                 grp = p->vlan_grp;
 171                                 dev = grp ? grp->vlan_devices[vlan] : NULL;
 172                         } else
 173                                 while (dev->master)
 174                                         dev = dev->master;
 175                         return dev;
 176                 }
 177         }
 178         return NULL;
 179 }
 180
 181 static int cxgb_ulp_iscsi_ctl(struct adapter *adapter, unsigned int req,
 182                               void *data)
 183 {
 184         int ret = 0;
 185         struct ulp_iscsi_info *uiip = data;
 186
 187         switch (req) {
 188         case ULP_ISCSI_GET_PARAMS:
 189                 uiip->pdev = adapter->pdev;
 190                 uiip->llimit = t3_read_reg(adapter, A_ULPRX_ISCSI_LLIMIT);
 191                 uiip->ulimit = t3_read_reg(adapter, A_ULPRX_ISCSI_ULIMIT);
 192                 uiip->tagmask = t3_read_reg(adapter, A_ULPRX_ISCSI_TAGMASK);
 193                 /*
 194                  * On tx, the iscsi pdu has to be <= tx page size and has to
 195                  * fit into the Tx PM FIFO.
 196                  */
 197                 uiip->max_txsz = min(adapter->params.tp.tx_pg_size,
 198                                      t3_read_reg(adapter, A_PM1_TX_CFG) >> 17);
 199                 /* on rx, the iscsi pdu has to be < rx page size and the
 200                    whole pdu + cpl headers has to fit into one sge buffer */
 201                 uiip->max_rxsz = min_t(unsigned int,
 202                                        adapter->params.tp.rx_pg_size,
 203                                        (adapter->sge.qs[0].fl[1].buf_size -
 204                                         sizeof(struct cpl_rx_data) * 2 -
 205                                         sizeof(struct cpl_rx_data_ddp)));
 206                 break;
 207         case ULP_ISCSI_SET_PARAMS:
 208                 t3_write_reg(adapter, A_ULPRX_ISCSI_TAGMASK, uiip->tagmask);
 209                 break;
 210         default:
 211                 ret = -EOPNOTSUPP;
 212         }
 213         return ret;
 214 }
 215
 216 /* Response queue used for RDMA events. */
 217 #define ASYNC_NOTIF_RSPQ 0
 218
 219 static int cxgb_rdma_ctl(struct adapter *adapter, unsigned int req, void *data)
 220 {
 221         int ret = 0;
 222
 223         switch (req) {
 224         case RDMA_GET_PARAMS:{
 225                 struct rdma_info *req = data;
 226                 struct pci_dev *pdev = adapter->pdev;
 227
 228                 req->udbell_physbase = pci_resource_start(pdev, 2);
 229                 req->udbell_len = pci_resource_len(pdev, 2);
 230                 req->tpt_base =
 231                         t3_read_reg(adapter, A_ULPTX_TPT_LLIMIT);
 232                 req->tpt_top = t3_read_reg(adapter, A_ULPTX_TPT_ULIMIT);
 233                 req->pbl_base =
 234                         t3_read_reg(adapter, A_ULPTX_PBL_LLIMIT);
 235                 req->pbl_top = t3_read_reg(adapter, A_ULPTX_PBL_ULIMIT);
 236                 req->rqt_base = t3_read_reg(adapter, A_ULPRX_RQ_LLIMIT);
 237                 req->rqt_top = t3_read_reg(adapter, A_ULPRX_RQ_ULIMIT);
 238                 req->kdb_addr = adapter->regs + A_SG_KDOORBELL;
 239                 req->pdev = pdev;
 240                 break;
 241         }
 242         case RDMA_CQ_OP:{
 243                 unsigned long flags;
 244                 struct rdma_cq_op *req = data;
 245
 246                 /* may be called in any context */
 247                 spin_lock_irqsave(&adapter->sge.reg_lock, flags);
 248                 ret = t3_sge_cqcntxt_op(adapter, req->id, req->op,
 249                                         req->credits);
 250                 spin_unlock_irqrestore(&adapter->sge.reg_lock, flags);
 251                 break;
 252         }
 253         case RDMA_GET_MEM:{
 254                 struct ch_mem_range *t = data;
 255                 struct mc7 *mem;
 256
 257                 if ((t->addr & 7) || (t->len & 7))
 258                         return -EINVAL;
 259                 if (t->mem_id == MEM_CM)
 260                         mem = &adapter->cm;
 261                 else if (t->mem_id == MEM_PMRX)
 262                         mem = &adapter->pmrx;
 263                 else if (t->mem_id == MEM_PMTX)
 264                         mem = &adapter->pmtx;
 265                 else
 266                         return -EINVAL;
 267
 268                 ret =
 269                         t3_mc7_bd_read(mem, t->addr / 8, t->len / 8,
 270                                         (u64 *) t->buf);
 271                 if (ret)
 272                         return ret;
 273                 break;
 274         }
 275         case RDMA_CQ_SETUP:{
 276                 struct rdma_cq_setup *req = data;
 277
 278                 spin_lock_irq(&adapter->sge.reg_lock);
 279                 ret =
 280                         t3_sge_init_cqcntxt(adapter, req->id,
 281                                         req->base_addr, req->size,
 282                                         ASYNC_NOTIF_RSPQ,
 283                                         req->ovfl_mode, req->credits,
 284                                         req->credit_thres);
 285                 spin_unlock_irq(&adapter->sge.reg_lock);
 286                 break;
 287         }
 288         case RDMA_CQ_DISABLE:
 289                 spin_lock_irq(&adapter->sge.reg_lock);
 290                 ret = t3_sge_disable_cqcntxt(adapter, *(unsigned int *)data);
 291                 spin_unlock_irq(&adapter->sge.reg_lock);
 292                 break;
 293         case RDMA_CTRL_QP_SETUP:{
 294                 struct rdma_ctrlqp_setup *req = data;
 295
 296                 spin_lock_irq(&adapter->sge.reg_lock);
 297                 ret = t3_sge_init_ecntxt(adapter, FW_RI_SGEEC_START, 0,
 298                                                 SGE_CNTXT_RDMA,
 299                                                 ASYNC_NOTIF_RSPQ,
 300                                                 req->base_addr, req->size,
 301                                                 FW_RI_TID_START, 1, 0);
 302                 spin_unlock_irq(&adapter->sge.reg_lock);
 303                 break;
 304         }
 305         default:
 306                 ret = -EOPNOTSUPP;
 307         }
 308         return ret;
 309 }
 310
 311 static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned int req, void *data)
 312 {
 313         struct adapter *adapter = tdev2adap(tdev);
 314         struct tid_range *tid;
 315         struct mtutab *mtup;
 316         struct iff_mac *iffmacp;
 317         struct ddp_params *ddpp;
 318         struct adap_ports *ports;
 319         int i;
 320
 321         switch (req) {
 322         case GET_MAX_OUTSTANDING_WR:
 323                 *(unsigned int *)data = FW_WR_NUM;
 324                 break;
 325         case GET_WR_LEN:
 326                 *(unsigned int *)data = WR_FLITS;
 327                 break;
 328         case GET_TX_MAX_CHUNK:
 329                 *(unsigned int *)data = 1 << 20;        /* 1MB */
 330                 break;
 331         case GET_TID_RANGE:
 332                 tid = data;
 333                 tid->num = t3_mc5_size(&adapter->mc5) -
 334                     adapter->params.mc5.nroutes -
 335                     adapter->params.mc5.nfilters - adapter->params.mc5.nservers;
 336                 tid->base = 0;
 337                 break;
 338         case GET_STID_RANGE:
 339                 tid = data;
 340                 tid->num = adapter->params.mc5.nservers;
 341                 tid->base = t3_mc5_size(&adapter->mc5) - tid->num -
 342                     adapter->params.mc5.nfilters - adapter->params.mc5.nroutes;
 343                 break;
 344         case GET_L2T_CAPACITY:
 345                 *(unsigned int *)data = 2048;
 346                 break;
 347         case GET_MTUS:
 348                 mtup = data;
 349                 mtup->size = NMTUS;
 350                 mtup->mtus = adapter->params.mtus;
 351                 break;
 352         case GET_IFF_FROM_MAC:
 353                 iffmacp = data;
 354                 iffmacp->dev = get_iff_from_mac(adapter, iffmacp->mac_addr,
 355                                                 iffmacp->vlan_tag &
 356                                                 VLAN_VID_MASK);
 357                 break;
 358         case GET_DDP_PARAMS:
 359                 ddpp = data;
 360                 ddpp->llimit = t3_read_reg(adapter, A_ULPRX_TDDP_LLIMIT);
 361                 ddpp->ulimit = t3_read_reg(adapter, A_ULPRX_TDDP_ULIMIT);
 362                 ddpp->tag_mask = t3_read_reg(adapter, A_ULPRX_TDDP_TAGMASK);
 363                 break;
 364         case GET_PORTS:
 365                 ports = data;
 366                 ports->nports = adapter->params.nports;
 367                 for_each_port(adapter, i)
 368                         ports->lldevs[i] = adapter->port[i];
 369                 break;
 370         case ULP_ISCSI_GET_PARAMS:
 371         case ULP_ISCSI_SET_PARAMS:
 372                 if (!offload_running(adapter))
 373                         return -EAGAIN;
 374                 return cxgb_ulp_iscsi_ctl(adapter, req, data);
 375         case RDMA_GET_PARAMS:
 376         case RDMA_CQ_OP:
 377         case RDMA_CQ_SETUP:
 378         case RDMA_CQ_DISABLE:
 379         case RDMA_CTRL_QP_SETUP:
 380         case RDMA_GET_MEM:
 381                 if (!offload_running(adapter))
 382                         return -EAGAIN;
 383                 return cxgb_rdma_ctl(adapter, req, data);
 384         default:
 385                 return -EOPNOTSUPP;
 386         }
 387         return 0;
 388 }
 389
 390 /*
 391  * Dummy handler for Rx offload packets in case we get an offload packet before
 392  * proper processing is setup.  This complains and drops the packet as it isn't
 393  * normal to get offload packets at this stage.
 394  */
 395 static int rx_offload_blackhole(struct t3cdev *dev, struct sk_buff **skbs,
 396                                 int n)
 397 {
 398         CH_ERR(tdev2adap(dev), "%d unexpected offload packets, first data %u\n",
 399                n, ntohl(*(__be32 *)skbs[0]->data));
 400         while (n--)
 401                 dev_kfree_skb_any(skbs[n]);
 402         return 0;
 403 }
 404
 405 static void dummy_neigh_update(struct t3cdev *dev, struct neighbour *neigh)
 406 {
 407 }
 408
 409 void cxgb3_set_dummy_ops(struct t3cdev *dev)
 410 {
 411         dev->recv = rx_offload_blackhole;
 412         dev->neigh_update = dummy_neigh_update;
 413 }
 414
 415 /*
 416  * Free an active-open TID.
 417  */
 418 void *cxgb3_free_atid(struct t3cdev *tdev, int atid)
 419 {
 420         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 421         union active_open_entry *p = atid2entry(t, atid);
 422         void *ctx = p->t3c_tid.ctx;
 423
 424         spin_lock_bh(&t->atid_lock);
 425         p->next = t->afree;
 426         t->afree = p;
 427         t->atids_in_use--;
 428         spin_unlock_bh(&t->atid_lock);
 429
 430         return ctx;
 431 }
 432
 433 EXPORT_SYMBOL(cxgb3_free_atid);
 434
 435 /*
 436  * Free a server TID and return it to the free pool.
 437  */
 438 void cxgb3_free_stid(struct t3cdev *tdev, int stid)
 439 {
 440         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 441         union listen_entry *p = stid2entry(t, stid);
 442
 443         spin_lock_bh(&t->stid_lock);
 444         p->next = t->sfree;
 445         t->sfree = p;
 446         t->stids_in_use--;
 447         spin_unlock_bh(&t->stid_lock);
 448 }
 449
 450 EXPORT_SYMBOL(cxgb3_free_stid);
 451
 452 void cxgb3_insert_tid(struct t3cdev *tdev, struct cxgb3_client *client,
 453                       void *ctx, unsigned int tid)
 454 {
 455         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 456
 457         t->tid_tab[tid].client = client;
 458         t->tid_tab[tid].ctx = ctx;
 459         atomic_inc(&t->tids_in_use);
 460 }
 461
 462 EXPORT_SYMBOL(cxgb3_insert_tid);
 463
 464 /*
 465  * Populate a TID_RELEASE WR.  The skb must be already propely sized.
 466  */
 467 static inline void mk_tid_release(struct sk_buff *skb, unsigned int tid)
 468 {
 469         struct cpl_tid_release *req;
 470
 471         skb->priority = CPL_PRIORITY_SETUP;
 472         req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req));
 473         req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
 474         OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid));
 475 }
 476
 477 static void t3_process_tid_release_list(struct work_struct *work)
 478 {
 479         struct t3c_data *td = container_of(work, struct t3c_data,
 480                                            tid_release_task);
 481         struct sk_buff *skb;
 482         struct t3cdev *tdev = td->dev;
 483
 484
 485         spin_lock_bh(&td->tid_release_lock);
 486         while (td->tid_release_list) {
 487                 struct t3c_tid_entry *p = td->tid_release_list;
 488
 489                 td->tid_release_list = (struct t3c_tid_entry *)p->ctx;
 490                 spin_unlock_bh(&td->tid_release_lock);
 491
 492                 skb = alloc_skb(sizeof(struct cpl_tid_release),
 493                                 GFP_KERNEL | __GFP_NOFAIL);
 494                 mk_tid_release(skb, p - td->tid_maps.tid_tab);
 495                 cxgb3_ofld_send(tdev, skb);
 496                 p->ctx = NULL;
 497                 spin_lock_bh(&td->tid_release_lock);
 498         }
 499         spin_unlock_bh(&td->tid_release_lock);
 500 }
 501
 502 /* use ctx as a next pointer in the tid release list */
 503 void cxgb3_queue_tid_release(struct t3cdev *tdev, unsigned int tid)
 504 {
 505         struct t3c_data *td = T3C_DATA(tdev);
 506         struct t3c_tid_entry *p = &td->tid_maps.tid_tab[tid];
 507
 508         spin_lock_bh(&td->tid_release_lock);
 509         p->ctx = (void *)td->tid_release_list;
 510         td->tid_release_list = p;
 511         if (!p->ctx)
 512                 schedule_work(&td->tid_release_task);
 513         spin_unlock_bh(&td->tid_release_lock);
 514 }
 515
 516 EXPORT_SYMBOL(cxgb3_queue_tid_release);
 517
 518 /*
 519  * Remove a tid from the TID table.  A client may defer processing its last
 520  * CPL message if it is locked at the time it arrives, and while the message
 521  * sits in the client's backlog the TID may be reused for another connection.
 522  * To handle this we atomically switch the TID association if it still points
 523  * to the original client context.
 524  */
 525 void cxgb3_remove_tid(struct t3cdev *tdev, void *ctx, unsigned int tid)
 526 {
 527         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 528
 529         BUG_ON(tid >= t->ntids);
 530         if (tdev->type == T3A)
 531                 (void)cmpxchg(&t->tid_tab[tid].ctx, ctx, NULL);
 532         else {
 533                 struct sk_buff *skb;
 534
 535                 skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC);
 536                 if (likely(skb)) {
 537                         mk_tid_release(skb, tid);
 538                         cxgb3_ofld_send(tdev, skb);
 539                         t->tid_tab[tid].ctx = NULL;
 540                 } else
 541                         cxgb3_queue_tid_release(tdev, tid);
 542         }
 543         atomic_dec(&t->tids_in_use);
 544 }
 545
 546 EXPORT_SYMBOL(cxgb3_remove_tid);
 547
 548 int cxgb3_alloc_atid(struct t3cdev *tdev, struct cxgb3_client *client,
 549                      void *ctx)
 550 {
 551         int atid = -1;
 552         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 553
 554         spin_lock_bh(&t->atid_lock);
 555         if (t->afree) {
 556                 union active_open_entry *p = t->afree;
 557
 558                 atid = (p - t->atid_tab) + t->atid_base;
 559                 t->afree = p->next;
 560                 p->t3c_tid.ctx = ctx;
 561                 p->t3c_tid.client = client;
 562                 t->atids_in_use++;
 563         }
 564         spin_unlock_bh(&t->atid_lock);
 565         return atid;
 566 }
 567
 568 EXPORT_SYMBOL(cxgb3_alloc_atid);
 569
 570 int cxgb3_alloc_stid(struct t3cdev *tdev, struct cxgb3_client *client,
 571                      void *ctx)
 572 {
 573         int stid = -1;
 574         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 575
 576         spin_lock_bh(&t->stid_lock);
 577         if (t->sfree) {
 578                 union listen_entry *p = t->sfree;
 579
 580                 stid = (p - t->stid_tab) + t->stid_base;
 581                 t->sfree = p->next;
 582                 p->t3c_tid.ctx = ctx;
 583                 p->t3c_tid.client = client;
 584                 t->stids_in_use++;
 585         }
 586         spin_unlock_bh(&t->stid_lock);
 587         return stid;
 588 }
 589
 590 EXPORT_SYMBOL(cxgb3_alloc_stid);
 591
 592 static int do_smt_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
 593 {
 594         struct cpl_smt_write_rpl *rpl = cplhdr(skb);
 595
 596         if (rpl->status != CPL_ERR_NONE)
 597                 printk(KERN_ERR
 598                        "Unexpected SMT_WRITE_RPL status %u for entry %u\n",
 599                        rpl->status, GET_TID(rpl));
 600
 601         return CPL_RET_BUF_DONE;
 602 }
 603
 604 static int do_l2t_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
 605 {
 606         struct cpl_l2t_write_rpl *rpl = cplhdr(skb);
 607
 608         if (rpl->status != CPL_ERR_NONE)
 609                 printk(KERN_ERR
 610                        "Unexpected L2T_WRITE_RPL status %u for entry %u\n",
 611                        rpl->status, GET_TID(rpl));
 612
 613         return CPL_RET_BUF_DONE;
 614 }
 615
 616 static int do_act_open_rpl(struct t3cdev *dev, struct sk_buff *skb)
 617 {
 618         struct cpl_act_open_rpl *rpl = cplhdr(skb);
 619         unsigned int atid = G_TID(ntohl(rpl->atid));
 620         struct t3c_tid_entry *t3c_tid;
 621
 622         t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
 623         if (t3c_tid->ctx && t3c_tid->client && t3c_tid->client->handlers &&
 624             t3c_tid->client->handlers[CPL_ACT_OPEN_RPL]) {
 625                 return t3c_tid->client->handlers[CPL_ACT_OPEN_RPL] (dev, skb,
 626                                                                     t3c_tid->
 627                                                                     ctx);
 628         } else {
 629                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 630                        dev->name, CPL_ACT_OPEN_RPL);
 631                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 632         }
 633 }
 634
 635 static int do_stid_rpl(struct t3cdev *dev, struct sk_buff *skb)
 636 {
 637         union opcode_tid *p = cplhdr(skb);
 638         unsigned int stid = G_TID(ntohl(p->opcode_tid));
 639         struct t3c_tid_entry *t3c_tid;
 640
 641         t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
 642         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 643             t3c_tid->client->handlers[p->opcode]) {
 644                 return t3c_tid->client->handlers[p->opcode] (dev, skb,
 645                                                              t3c_tid->ctx);
 646         } else {
 647                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 648                        dev->name, p->opcode);
 649                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 650         }
 651 }
 652
 653 static int do_hwtid_rpl(struct t3cdev *dev, struct sk_buff *skb)
 654 {
 655         union opcode_tid *p = cplhdr(skb);
 656         unsigned int hwtid = G_TID(ntohl(p->opcode_tid));
 657         struct t3c_tid_entry *t3c_tid;
 658
 659         t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
 660         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 661             t3c_tid->client->handlers[p->opcode]) {
 662                 return t3c_tid->client->handlers[p->opcode]
 663                     (dev, skb, t3c_tid->ctx);
 664         } else {
 665                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 666                        dev->name, p->opcode);
 667                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 668         }
 669 }
 670
 671 static int do_cr(struct t3cdev *dev, struct sk_buff *skb)
 672 {
 673         struct cpl_pass_accept_req *req = cplhdr(skb);
 674         unsigned int stid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
 675         struct t3c_tid_entry *t3c_tid;
 676
 677         t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
 678         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 679             t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]) {
 680                 return t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]
 681                     (dev, skb, t3c_tid->ctx);
 682         } else {
 683                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 684                        dev->name, CPL_PASS_ACCEPT_REQ);
 685                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 686         }
 687 }
 688
 689 static int do_abort_req_rss(struct t3cdev *dev, struct sk_buff *skb)
 690 {
 691         union opcode_tid *p = cplhdr(skb);
 692         unsigned int hwtid = G_TID(ntohl(p->opcode_tid));
 693         struct t3c_tid_entry *t3c_tid;
 694
 695         t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
 696         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 697             t3c_tid->client->handlers[p->opcode]) {
 698                 return t3c_tid->client->handlers[p->opcode]
 699                     (dev, skb, t3c_tid->ctx);
 700         } else {
 701                 struct cpl_abort_req_rss *req = cplhdr(skb);
 702                 struct cpl_abort_rpl *rpl;
 703
 704                 struct sk_buff *skb =
 705                     alloc_skb(sizeof(struct cpl_abort_rpl), GFP_ATOMIC);
 706                 if (!skb) {
 707                         printk("do_abort_req_rss: couldn't get skb!\n");
 708                         goto out;
 709                 }
 710                 skb->priority = CPL_PRIORITY_DATA;
 711                 __skb_put(skb, sizeof(struct cpl_abort_rpl));
 712                 rpl = cplhdr(skb);
 713                 rpl->wr.wr_hi =
 714                     htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_RPL));
 715                 rpl->wr.wr_lo = htonl(V_WR_TID(GET_TID(req)));
 716                 OPCODE_TID(rpl) =
 717                     htonl(MK_OPCODE_TID(CPL_ABORT_RPL, GET_TID(req)));
 718                 rpl->cmd = req->status;
 719                 cxgb3_ofld_send(dev, skb);
 720 out:
 721                 return CPL_RET_BUF_DONE;
 722         }
 723 }
 724
 725 static int do_act_establish(struct t3cdev *dev, struct sk_buff *skb)
 726 {
 727         struct cpl_act_establish *req = cplhdr(skb);
 728         unsigned int atid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
 729         struct t3c_tid_entry *t3c_tid;
 730
 731         t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
 732         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 733             t3c_tid->client->handlers[CPL_ACT_ESTABLISH]) {
 734                 return t3c_tid->client->handlers[CPL_ACT_ESTABLISH]
 735                     (dev, skb, t3c_tid->ctx);
 736         } else {
 737                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 738                        dev->name, CPL_PASS_ACCEPT_REQ);
 739                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 740         }
 741 }
 742
 743 static int do_set_tcb_rpl(struct t3cdev *dev, struct sk_buff *skb)
 744 {
 745         struct cpl_set_tcb_rpl *rpl = cplhdr(skb);
 746
 747         if (rpl->status != CPL_ERR_NONE)
 748                 printk(KERN_ERR
 749                        "Unexpected SET_TCB_RPL status %u for tid %u\n",
 750                        rpl->status, GET_TID(rpl));
 751         return CPL_RET_BUF_DONE;
 752 }
 753
 754 static int do_trace(struct t3cdev *dev, struct sk_buff *skb)
 755 {
 756         struct cpl_trace_pkt *p = cplhdr(skb);
 757
 758         skb->protocol = htons(0xffff);
 759         skb->dev = dev->lldev;
 760         skb_pull(skb, sizeof(*p));
 761         skb->mac.raw = skb->data;
 762         netif_receive_skb(skb);
 763         return 0;
 764 }
 765
 766 static int do_term(struct t3cdev *dev, struct sk_buff *skb)
 767 {
 768         unsigned int hwtid = ntohl(skb->priority) >> 8 & 0xfffff;
 769         unsigned int opcode = G_OPCODE(ntohl(skb->csum));
 770         struct t3c_tid_entry *t3c_tid;
 771
 772         t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
 773         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 774             t3c_tid->client->handlers[opcode]) {
 775                 return t3c_tid->client->handlers[opcode] (dev, skb,
 776                                                           t3c_tid->ctx);
 777         } else {
 778                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 779                        dev->name, opcode);
 780                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 781         }
 782 }
 783
 784 static int nb_callback(struct notifier_block *self, unsigned long event,
 785                        void *ctx)
 786 {
 787         switch (event) {
 788         case (NETEVENT_NEIGH_UPDATE):{
 789                 cxgb_neigh_update((struct neighbour *)ctx);
 790                 break;
 791         }
 792         case (NETEVENT_PMTU_UPDATE):
 793                 break;
 794         case (NETEVENT_REDIRECT):{
 795                 struct netevent_redirect *nr = ctx;
 796                 cxgb_redirect(nr->old, nr->new);
 797                 cxgb_neigh_update(nr->new->neighbour);
 798                 break;
 799         }
 800         default:
 801                 break;
 802         }
 803         return 0;
 804 }
 805
 806 static struct notifier_block nb = {
 807         .notifier_call = nb_callback
 808 };
 809
 810 /*
 811  * Process a received packet with an unknown/unexpected CPL opcode.
 812  */
 813 static int do_bad_cpl(struct t3cdev *dev, struct sk_buff *skb)
 814 {
 815         printk(KERN_ERR "%s: received bad CPL command 0x%x\n", dev->name,
 816                *skb->data);
 817         return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 818 }
 819
 820 /*
 821  * Handlers for each CPL opcode
 822  */
 823 static cpl_handler_func cpl_handlers[NUM_CPL_CMDS];
 824
 825 /*
 826  * Add a new handler to the CPL dispatch table.  A NULL handler may be supplied
 827  * to unregister an existing handler.
 828  */
 829 void t3_register_cpl_handler(unsigned int opcode, cpl_handler_func h)
 830 {
 831         if (opcode < NUM_CPL_CMDS)
 832                 cpl_handlers[opcode] = h ? h : do_bad_cpl;
 833         else
 834                 printk(KERN_ERR "T3C: handler registration for "
 835                        "opcode %x failed\n", opcode);
 836 }
 837
 838 EXPORT_SYMBOL(t3_register_cpl_handler);
 839
 840 /*
 841  * T3CDEV's receive method.
 842  */
 843 int process_rx(struct t3cdev *dev, struct sk_buff **skbs, int n)
 844 {
 845         while (n--) {
 846                 struct sk_buff *skb = *skbs++;
 847                 unsigned int opcode = G_OPCODE(ntohl(skb->csum));
 848                 int ret = cpl_handlers[opcode] (dev, skb);
 849
 850 #if VALIDATE_TID
 851                 if (ret & CPL_RET_UNKNOWN_TID) {
 852                         union opcode_tid *p = cplhdr(skb);
 853
 854                         printk(KERN_ERR "%s: CPL message (opcode %u) had "
 855                                "unknown TID %u\n", dev->name, opcode,
 856                                G_TID(ntohl(p->opcode_tid)));
 857                 }
 858 #endif
 859                 if (ret & CPL_RET_BUF_DONE)
 860                         kfree_skb(skb);
 861         }
 862         return 0;
 863 }
 864
 865 /*
 866  * Sends an sk_buff to a T3C driver after dealing with any active network taps.
 867  */
 868 int cxgb3_ofld_send(struct t3cdev *dev, struct sk_buff *skb)
 869 {
 870         int r;
 871
 872         local_bh_disable();
 873         r = dev->send(dev, skb);
 874         local_bh_enable();
 875         return r;
 876 }
 877
 878 EXPORT_SYMBOL(cxgb3_ofld_send);
 879
 880 static int is_offloading(struct net_device *dev)
 881 {
 882         struct adapter *adapter;
 883         int i;
 884
 885         read_lock_bh(&adapter_list_lock);
 886         list_for_each_entry(adapter, &adapter_list, adapter_list) {
 887                 for_each_port(adapter, i) {
 888                         if (dev == adapter->port[i]) {
 889                                 read_unlock_bh(&adapter_list_lock);
 890                                 return 1;
 891                         }
 892                 }
 893         }
 894         read_unlock_bh(&adapter_list_lock);
 895         return 0;
 896 }
 897
 898 void cxgb_neigh_update(struct neighbour *neigh)
 899 {
 900         struct net_device *dev = neigh->dev;
 901
 902         if (dev && (is_offloading(dev))) {
 903                 struct t3cdev *tdev = T3CDEV(dev);
 904
 905                 BUG_ON(!tdev);
 906                 t3_l2t_update(tdev, neigh);
 907         }
 908 }
 909
 910 static void set_l2t_ix(struct t3cdev *tdev, u32 tid, struct l2t_entry *e)
 911 {
 912         struct sk_buff *skb;
 913         struct cpl_set_tcb_field *req;
 914
 915         skb = alloc_skb(sizeof(*req), GFP_ATOMIC);
 916         if (!skb) {
 917                 printk(KERN_ERR "%s: cannot allocate skb!\n", __FUNCTION__);
 918                 return;
 919         }
 920         skb->priority = CPL_PRIORITY_CONTROL;
 921         req = (struct cpl_set_tcb_field *)skb_put(skb, sizeof(*req));
 922         req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
 923         OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid));
 924         req->reply = 0;
 925         req->cpu_idx = 0;
 926         req->word = htons(W_TCB_L2T_IX);
 927         req->mask = cpu_to_be64(V_TCB_L2T_IX(M_TCB_L2T_IX));
 928         req->val = cpu_to_be64(V_TCB_L2T_IX(e->idx));
 929         tdev->send(tdev, skb);
 930 }
 931
 932 void cxgb_redirect(struct dst_entry *old, struct dst_entry *new)
 933 {
 934         struct net_device *olddev, *newdev;
 935         struct tid_info *ti;
 936         struct t3cdev *tdev;
 937         u32 tid;
 938         int update_tcb;
 939         struct l2t_entry *e;
 940         struct t3c_tid_entry *te;
 941
 942         olddev = old->neighbour->dev;
 943         newdev = new->neighbour->dev;
 944         if (!is_offloading(olddev))
 945                 return;
 946         if (!is_offloading(newdev)) {
 947                 printk(KERN_WARNING "%s: Redirect to non-offload"
 948                        "device ignored.\n", __FUNCTION__);
 949                 return;
 950         }
 951         tdev = T3CDEV(olddev);
 952         BUG_ON(!tdev);
 953         if (tdev != T3CDEV(newdev)) {
 954                 printk(KERN_WARNING "%s: Redirect to different "
 955                        "offload device ignored.\n", __FUNCTION__);
 956                 return;
 957         }
 958
 959         /* Add new L2T entry */
 960         e = t3_l2t_get(tdev, new->neighbour, newdev);
 961         if (!e) {
 962                 printk(KERN_ERR "%s: couldn't allocate new l2t entry!\n",
 963                        __FUNCTION__);
 964                 return;
 965         }
 966
 967         /* Walk tid table and notify clients of dst change. */
 968         ti = &(T3C_DATA(tdev))->tid_maps;
 969         for (tid = 0; tid < ti->ntids; tid++) {
 970                 te = lookup_tid(ti, tid);
 971                 BUG_ON(!te);
 972                 if (te->ctx && te->client && te->client->redirect) {
 973                         update_tcb = te->client->redirect(te->ctx, old, new, e);
 974                         if (update_tcb) {
 975                                 l2t_hold(L2DATA(tdev), e);
 976                                 set_l2t_ix(tdev, tid, e);
 977                         }
 978                 }
 979         }
 980         l2t_release(L2DATA(tdev), e);
 981 }
 982
 983 /*
 984  * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc.
 985  * The allocated memory is cleared.
 986  */
 987 void *cxgb_alloc_mem(unsigned long size)
 988 {
 989         void *p = kmalloc(size, GFP_KERNEL);
 990
 991         if (!p)
 992                 p = vmalloc(size);
 993         if (p)
 994                 memset(p, 0, size);
 995         return p;
 996 }
 997
 998 /*
 999  * Free memory allocated through t3_alloc_mem().
1000  */
1001 void cxgb_free_mem(void *addr)
1002 {
1003         unsigned long p = (unsigned long)addr;
1004
1005         if (p >= VMALLOC_START && p < VMALLOC_END)
1006                 vfree(addr);
1007         else
1008                 kfree(addr);
1009 }
1010
1011 /*
1012  * Allocate and initialize the TID tables.  Returns 0 on success.
1013  */
1014 static int init_tid_tabs(struct tid_info *t, unsigned int ntids,
1015                          unsigned int natids, unsigned int nstids,
1016                          unsigned int atid_base, unsigned int stid_base)
1017 {
1018         unsigned long size = ntids * sizeof(*t->tid_tab) +
1019             natids * sizeof(*t->atid_tab) + nstids * sizeof(*t->stid_tab);
1020
1021         t->tid_tab = cxgb_alloc_mem(size);
1022         if (!t->tid_tab)
1023                 return -ENOMEM;
1024
1025         t->stid_tab = (union listen_entry *)&t->tid_tab[ntids];
1026         t->atid_tab = (union active_open_entry *)&t->stid_tab[nstids];
1027         t->ntids = ntids;
1028         t->nstids = nstids;
1029         t->stid_base = stid_base;
1030         t->sfree = NULL;
1031         t->natids = natids;
1032         t->atid_base = atid_base;
1033         t->afree = NULL;
1034         t->stids_in_use = t->atids_in_use = 0;
1035         atomic_set(&t->tids_in_use, 0);
1036         spin_lock_init(&t->stid_lock);
1037         spin_lock_init(&t->atid_lock);
1038
1039         /*
1040          * Setup the free lists for stid_tab and atid_tab.
1041          */
1042         if (nstids) {
1043                 while (--nstids)
1044                         t->stid_tab[nstids - 1].next = &t->stid_tab[nstids];
1045                 t->sfree = t->stid_tab;
1046         }
1047         if (natids) {
1048                 while (--natids)
1049                         t->atid_tab[natids - 1].next = &t->atid_tab[natids];
1050                 t->afree = t->atid_tab;
1051         }
1052         return 0;
1053 }
1054
1055 static void free_tid_maps(struct tid_info *t)
1056 {
1057         cxgb_free_mem(t->tid_tab);
1058 }
1059
1060 static inline void add_adapter(struct adapter *adap)
1061 {
1062         write_lock_bh(&adapter_list_lock);
1063         list_add_tail(&adap->adapter_list, &adapter_list);
1064         write_unlock_bh(&adapter_list_lock);
1065 }
1066
1067 static inline void remove_adapter(struct adapter *adap)
1068 {
1069         write_lock_bh(&adapter_list_lock);
1070         list_del(&adap->adapter_list);
1071         write_unlock_bh(&adapter_list_lock);
1072 }
1073
1074 int cxgb3_offload_activate(struct adapter *adapter)
1075 {
1076         struct t3cdev *dev = &adapter->tdev;
1077         int natids, err;
1078         struct t3c_data *t;
1079         struct tid_range stid_range, tid_range;
1080         struct mtutab mtutab;
1081         unsigned int l2t_capacity;
1082
1083         t = kcalloc(1, sizeof(*t), GFP_KERNEL);
1084         if (!t)
1085                 return -ENOMEM;
1086
1087         err = -EOPNOTSUPP;
1088         if (dev->ctl(dev, GET_TX_MAX_CHUNK, &t->tx_max_chunk) < 0 ||
1089             dev->ctl(dev, GET_MAX_OUTSTANDING_WR, &t->max_wrs) < 0 ||
1090             dev->ctl(dev, GET_L2T_CAPACITY, &l2t_capacity) < 0 ||
1091             dev->ctl(dev, GET_MTUS, &mtutab) < 0 ||
1092             dev->ctl(dev, GET_TID_RANGE, &tid_range) < 0 ||
1093             dev->ctl(dev, GET_STID_RANGE, &stid_range) < 0)
1094                 goto out_free;
1095
1096         err = -ENOMEM;
1097         L2DATA(dev) = t3_init_l2t(l2t_capacity);
1098         if (!L2DATA(dev))
1099                 goto out_free;
1100
1101         natids = min(tid_range.num / 2, MAX_ATIDS);
1102         err = init_tid_tabs(&t->tid_maps, tid_range.num, natids,
1103                             stid_range.num, ATID_BASE, stid_range.base);
1104         if (err)
1105                 goto out_free_l2t;
1106
1107         t->mtus = mtutab.mtus;
1108         t->nmtus = mtutab.size;
1109
1110         INIT_WORK(&t->tid_release_task, t3_process_tid_release_list);
1111         spin_lock_init(&t->tid_release_lock);
1112         INIT_LIST_HEAD(&t->list_node);
1113         t->dev = dev;
1114
1115         T3C_DATA(dev) = t;
1116         dev->recv = process_rx;
1117         dev->neigh_update = t3_l2t_update;
1118
1119         /* Register netevent handler once */
1120         if (list_empty(&adapter_list))
1121                 register_netevent_notifier(&nb);
1122
1123         add_adapter(adapter);
1124         return 0;
1125
1126 out_free_l2t:
1127         t3_free_l2t(L2DATA(dev));
1128         L2DATA(dev) = NULL;
1129 out_free:
1130         kfree(t);
1131         return err;
1132 }
1133
1134 void cxgb3_offload_deactivate(struct adapter *adapter)
1135 {
1136         struct t3cdev *tdev = &adapter->tdev;
1137         struct t3c_data *t = T3C_DATA(tdev);
1138
1139         remove_adapter(adapter);
1140         if (list_empty(&adapter_list))
1141                 unregister_netevent_notifier(&nb);
1142
1143         free_tid_maps(&t->tid_maps);
1144         T3C_DATA(tdev) = NULL;
1145         t3_free_l2t(L2DATA(tdev));
1146         L2DATA(tdev) = NULL;
1147         kfree(t);
1148 }
1149
1150 static inline void register_tdev(struct t3cdev *tdev)
1151 {
1152         static int unit;
1153
1154         mutex_lock(&cxgb3_db_lock);
1155         snprintf(tdev->name, sizeof(tdev->name), "ofld_dev%d", unit++);
1156         list_add_tail(&tdev->ofld_dev_list, &ofld_dev_list);
1157         mutex_unlock(&cxgb3_db_lock);
1158 }
1159
1160 static inline void unregister_tdev(struct t3cdev *tdev)
1161 {
1162         mutex_lock(&cxgb3_db_lock);
1163         list_del(&tdev->ofld_dev_list);
1164         mutex_unlock(&cxgb3_db_lock);
1165 }
1166
1167 void __devinit cxgb3_adapter_ofld(struct adapter *adapter)
1168 {
1169         struct t3cdev *tdev = &adapter->tdev;
1170
1171         INIT_LIST_HEAD(&tdev->ofld_dev_list);
1172
1173         cxgb3_set_dummy_ops(tdev);
1174         tdev->send = t3_offload_tx;
1175         tdev->ctl = cxgb_offload_ctl;
1176         tdev->type = adapter->params.rev == 0 ? T3A : T3B;
1177
1178         register_tdev(tdev);
1179 }
1180
1181 void __devexit cxgb3_adapter_unofld(struct adapter *adapter)
1182 {
1183         struct t3cdev *tdev = &adapter->tdev;
1184
1185         tdev->recv = NULL;
1186         tdev->neigh_update = NULL;
1187
1188         unregister_tdev(tdev);
1189 }
1190
1191 void __init cxgb3_offload_init(void)
1192 {
1193         int i;
1194
1195         for (i = 0; i < NUM_CPL_CMDS; ++i)
1196                 cpl_handlers[i] = do_bad_cpl;
1197
1198         t3_register_cpl_handler(CPL_SMT_WRITE_RPL, do_smt_write_rpl);
1199         t3_register_cpl_handler(CPL_L2T_WRITE_RPL, do_l2t_write_rpl);
1200         t3_register_cpl_handler(CPL_PASS_OPEN_RPL, do_stid_rpl);
1201         t3_register_cpl_handler(CPL_CLOSE_LISTSRV_RPL, do_stid_rpl);
1202         t3_register_cpl_handler(CPL_PASS_ACCEPT_REQ, do_cr);
1203         t3_register_cpl_handler(CPL_PASS_ESTABLISH, do_hwtid_rpl);
1204         t3_register_cpl_handler(CPL_ABORT_RPL_RSS, do_hwtid_rpl);
1205         t3_register_cpl_handler(CPL_ABORT_RPL, do_hwtid_rpl);
1206         t3_register_cpl_handler(CPL_RX_URG_NOTIFY, do_hwtid_rpl);
1207         t3_register_cpl_handler(CPL_RX_DATA, do_hwtid_rpl);
1208         t3_register_cpl_handler(CPL_TX_DATA_ACK, do_hwtid_rpl);
1209         t3_register_cpl_handler(CPL_TX_DMA_ACK, do_hwtid_rpl);
1210         t3_register_cpl_handler(CPL_ACT_OPEN_RPL, do_act_open_rpl);
1211         t3_register_cpl_handler(CPL_PEER_CLOSE, do_hwtid_rpl);
1212         t3_register_cpl_handler(CPL_CLOSE_CON_RPL, do_hwtid_rpl);
1213         t3_register_cpl_handler(CPL_ABORT_REQ_RSS, do_abort_req_rss);
1214         t3_register_cpl_handler(CPL_ACT_ESTABLISH, do_act_establish);
1215         t3_register_cpl_handler(CPL_SET_TCB_RPL, do_set_tcb_rpl);
1216         t3_register_cpl_handler(CPL_RDMA_TERMINATE, do_term);
1217         t3_register_cpl_handler(CPL_RDMA_EC_STATUS, do_hwtid_rpl);
1218         t3_register_cpl_handler(CPL_TRACE_PKT, do_trace);
1219         t3_register_cpl_handler(CPL_RX_DATA_DDP, do_hwtid_rpl);
1220         t3_register_cpl_handler(CPL_RX_DDP_COMPLETE, do_hwtid_rpl);
1221         t3_register_cpl_handler(CPL_ISCSI_HDR, do_hwtid_rpl);
1222 }