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chelsio: sparse warning fixes (old cxgb2)
[deliverable/linux.git] / drivers / net / cxgb3 / cxgb3_offload.c
CommitLineData
4d22de3e 1/*
1d68e93d 2 * Copyright (c) 2006-2007 Chelsio, Inc. All rights reserved.
4d22de3e
DLR		 3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#include <linux/list.h>
34#include <net/neighbour.h>
35#include <linux/notifier.h>
36#include <asm/atomic.h>
37#include <linux/proc_fs.h>
38#include <linux/if_vlan.h>
39#include <net/netevent.h>
40#include <linux/highmem.h>
41#include <linux/vmalloc.h>
42
43#include "common.h"
44#include "regs.h"
45#include "cxgb3_ioctl.h"
46#include "cxgb3_ctl_defs.h"
47#include "cxgb3_defs.h"
48#include "l2t.h"
49#include "firmware_exports.h"
50#include "cxgb3_offload.h"
51
52static LIST_HEAD(client_list);
53static LIST_HEAD(ofld_dev_list);
54static DEFINE_MUTEX(cxgb3_db_lock);
55
56static DEFINE_RWLOCK(adapter_list_lock);
57static LIST_HEAD(adapter_list);
58
59static const unsigned int MAX_ATIDS = 64 * 1024;
c9a6ce50 60static const unsigned int ATID_BASE = 0x10000;
4d22de3e
DLR		 61
62static inline int offload_activated(struct t3cdev *tdev)
63{
64 const struct adapter *adapter = tdev2adap(tdev);
65
66 return (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map));
67}
68
69/**
70 * cxgb3_register_client - register an offload client
71 * @client: the client
72 *
73 * Add the client to the client list,
74 * and call backs the client for each activated offload device
75 */
76void cxgb3_register_client(struct cxgb3_client *client)
77{
78 struct t3cdev *tdev;
79
80 mutex_lock(&cxgb3_db_lock);
81 list_add_tail(&client->client_list, &client_list);
82
83 if (client->add) {
84 list_for_each_entry(tdev, &ofld_dev_list, ofld_dev_list) {
85 if (offload_activated(tdev))
86 client->add(tdev);
87 }
88 }
89 mutex_unlock(&cxgb3_db_lock);
90}
91
92EXPORT_SYMBOL(cxgb3_register_client);
93
94/**
95 * cxgb3_unregister_client - unregister an offload client
96 * @client: the client
97 *
98 * Remove the client to the client list,
99 * and call backs the client for each activated offload device.
100 */
101void cxgb3_unregister_client(struct cxgb3_client *client)
102{
103 struct t3cdev *tdev;
104
105 mutex_lock(&cxgb3_db_lock);
106 list_del(&client->client_list);
107
108 if (client->remove) {
109 list_for_each_entry(tdev, &ofld_dev_list, ofld_dev_list) {
110 if (offload_activated(tdev))
111 client->remove(tdev);
112 }
113 }
114 mutex_unlock(&cxgb3_db_lock);
115}
116
117EXPORT_SYMBOL(cxgb3_unregister_client);
118
119/**
120 * cxgb3_add_clients - activate registered clients for an offload device
121 * @tdev: the offload device
122 *
123 * Call backs all registered clients once a offload device is activated
124 */
125void cxgb3_add_clients(struct t3cdev *tdev)
126{
127 struct cxgb3_client *client;
128
129 mutex_lock(&cxgb3_db_lock);
130 list_for_each_entry(client, &client_list, client_list) {
131 if (client->add)
132 client->add(tdev);
133 }
134 mutex_unlock(&cxgb3_db_lock);
135}
136
137/**
138 * cxgb3_remove_clients - deactivates registered clients
139 * for an offload device
140 * @tdev: the offload device
141 *
142 * Call backs all registered clients once a offload device is deactivated
143 */
144void cxgb3_remove_clients(struct t3cdev *tdev)
145{
146 struct cxgb3_client *client;
147
148 mutex_lock(&cxgb3_db_lock);
149 list_for_each_entry(client, &client_list, client_list) {
150 if (client->remove)
151 client->remove(tdev);
152 }
153 mutex_unlock(&cxgb3_db_lock);
154}
155
156static struct net_device *get_iff_from_mac(struct adapter *adapter,
157 const unsigned char *mac,
158 unsigned int vlan)
159{
160 int i;
161
162 for_each_port(adapter, i) {
5c15bdec 163 struct vlan_group *grp;
4d22de3e
DLR		 164 struct net_device *dev = adapter->port[i];
165 const struct port_info *p = netdev_priv(dev);
166
167 if (!memcmp(dev->dev_addr, mac, ETH_ALEN)) {
168 if (vlan && vlan != VLAN_VID_MASK) {
169 grp = p->vlan_grp;
5c15bdec
DA		 170 dev = NULL;
171 if (grp)
172 dev = vlan_group_get_device(grp, vlan);
4d22de3e
DLR		 173 } else
174 while (dev->master)
175 dev = dev->master;
176 return dev;
177 }
178 }
179 return NULL;
180}
181
182static int cxgb_ulp_iscsi_ctl(struct adapter *adapter, unsigned int req,
183 void *data)
184{
185 int ret = 0;
186 struct ulp_iscsi_info *uiip = data;
187
188 switch (req) {
189 case ULP_ISCSI_GET_PARAMS:
190 uiip->pdev = adapter->pdev;
191 uiip->llimit = t3_read_reg(adapter, A_ULPRX_ISCSI_LLIMIT);
192 uiip->ulimit = t3_read_reg(adapter, A_ULPRX_ISCSI_ULIMIT);
193 uiip->tagmask = t3_read_reg(adapter, A_ULPRX_ISCSI_TAGMASK);
194 /*
195 * On tx, the iscsi pdu has to be <= tx page size and has to
196 * fit into the Tx PM FIFO.
197 */
198 uiip->max_txsz = min(adapter->params.tp.tx_pg_size,
199 t3_read_reg(adapter, A_PM1_TX_CFG) >> 17);
200 /* on rx, the iscsi pdu has to be < rx page size and the
201 whole pdu + cpl headers has to fit into one sge buffer */
202 uiip->max_rxsz = min_t(unsigned int,
203 adapter->params.tp.rx_pg_size,
204 (adapter->sge.qs[0].fl[1].buf_size -
205 sizeof(struct cpl_rx_data) * 2 -
206 sizeof(struct cpl_rx_data_ddp)));
207 break;
208 case ULP_ISCSI_SET_PARAMS:
209 t3_write_reg(adapter, A_ULPRX_ISCSI_TAGMASK, uiip->tagmask);
210 break;
211 default:
212 ret = -EOPNOTSUPP;
213 }
214 return ret;
215}
216
217/* Response queue used for RDMA events. */
218#define ASYNC_NOTIF_RSPQ 0
219
220static int cxgb_rdma_ctl(struct adapter *adapter, unsigned int req, void *data)
221{
222 int ret = 0;
223
224 switch (req) {
225 case RDMA_GET_PARAMS:{
226 struct rdma_info *req = data;
227 struct pci_dev *pdev = adapter->pdev;
228
229 req->udbell_physbase = pci_resource_start(pdev, 2);
230 req->udbell_len = pci_resource_len(pdev, 2);
231 req->tpt_base =
232 t3_read_reg(adapter, A_ULPTX_TPT_LLIMIT);
233 req->tpt_top = t3_read_reg(adapter, A_ULPTX_TPT_ULIMIT);
234 req->pbl_base =
235 t3_read_reg(adapter, A_ULPTX_PBL_LLIMIT);
236 req->pbl_top = t3_read_reg(adapter, A_ULPTX_PBL_ULIMIT);
237 req->rqt_base = t3_read_reg(adapter, A_ULPRX_RQ_LLIMIT);
238 req->rqt_top = t3_read_reg(adapter, A_ULPRX_RQ_ULIMIT);
239 req->kdb_addr = adapter->regs + A_SG_KDOORBELL;
240 req->pdev = pdev;
241 break;
242 }
243 case RDMA_CQ_OP:{
244 unsigned long flags;
245 struct rdma_cq_op *req = data;
246
247 /* may be called in any context */
248 spin_lock_irqsave(&adapter->sge.reg_lock, flags);
249 ret = t3_sge_cqcntxt_op(adapter, req->id, req->op,
250 req->credits);
251 spin_unlock_irqrestore(&adapter->sge.reg_lock, flags);
252 break;
253 }
254 case RDMA_GET_MEM:{
255 struct ch_mem_range *t = data;
256 struct mc7 *mem;
257
258 if ((t->addr & 7) || (t->len & 7))
259 return -EINVAL;
260 if (t->mem_id == MEM_CM)
261 mem = &adapter->cm;
262 else if (t->mem_id == MEM_PMRX)
263 mem = &adapter->pmrx;
264 else if (t->mem_id == MEM_PMTX)
265 mem = &adapter->pmtx;
266 else
267 return -EINVAL;
268
269 ret =
270 t3_mc7_bd_read(mem, t->addr / 8, t->len / 8,
271 (u64 *) t->buf);
272 if (ret)
273 return ret;
274 break;
275 }
276 case RDMA_CQ_SETUP:{
277 struct rdma_cq_setup *req = data;
278
279 spin_lock_irq(&adapter->sge.reg_lock);
280 ret =
281 t3_sge_init_cqcntxt(adapter, req->id,
282 req->base_addr, req->size,
283 ASYNC_NOTIF_RSPQ,
284 req->ovfl_mode, req->credits,
285 req->credit_thres);
286 spin_unlock_irq(&adapter->sge.reg_lock);
287 break;
288 }
289 case RDMA_CQ_DISABLE:
290 spin_lock_irq(&adapter->sge.reg_lock);
291 ret = t3_sge_disable_cqcntxt(adapter, *(unsigned int *)data);
292 spin_unlock_irq(&adapter->sge.reg_lock);
293 break;
294 case RDMA_CTRL_QP_SETUP:{
295 struct rdma_ctrlqp_setup *req = data;
296
297 spin_lock_irq(&adapter->sge.reg_lock);
298 ret = t3_sge_init_ecntxt(adapter, FW_RI_SGEEC_START, 0,
299 SGE_CNTXT_RDMA,
300 ASYNC_NOTIF_RSPQ,
301 req->base_addr, req->size,
302 FW_RI_TID_START, 1, 0);
303 spin_unlock_irq(&adapter->sge.reg_lock);
304 break;
305 }
306 default:
307 ret = -EOPNOTSUPP;
308 }
309 return ret;
310}
311
312static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned int req, void *data)
313{
314 struct adapter *adapter = tdev2adap(tdev);
315 struct tid_range *tid;
316 struct mtutab *mtup;
317 struct iff_mac *iffmacp;
318 struct ddp_params *ddpp;
319 struct adap_ports *ports;
e22bb45d
DLR		 320 struct ofld_page_info *rx_page_info;
321 struct tp_params *tp = &adapter->params.tp;
4d22de3e
DLR		 322 int i;
323
324 switch (req) {
325 case GET_MAX_OUTSTANDING_WR:
326 *(unsigned int *)data = FW_WR_NUM;
327 break;
328 case GET_WR_LEN:
329 *(unsigned int *)data = WR_FLITS;
330 break;
331 case GET_TX_MAX_CHUNK:
332 *(unsigned int *)data = 1 << 20; /* 1MB */
333 break;
334 case GET_TID_RANGE:
335 tid = data;
336 tid->num = t3_mc5_size(&adapter->mc5) -
337 adapter->params.mc5.nroutes -
338 adapter->params.mc5.nfilters - adapter->params.mc5.nservers;
339 tid->base = 0;
340 break;
341 case GET_STID_RANGE:
342 tid = data;
343 tid->num = adapter->params.mc5.nservers;
344 tid->base = t3_mc5_size(&adapter->mc5) - tid->num -
345 adapter->params.mc5.nfilters - adapter->params.mc5.nroutes;
346 break;
347 case GET_L2T_CAPACITY:
348 *(unsigned int *)data = 2048;
349 break;
350 case GET_MTUS:
351 mtup = data;
352 mtup->size = NMTUS;
353 mtup->mtus = adapter->params.mtus;
354 break;
355 case GET_IFF_FROM_MAC:
356 iffmacp = data;
357 iffmacp->dev = get_iff_from_mac(adapter, iffmacp->mac_addr,
358 iffmacp->vlan_tag &
359 VLAN_VID_MASK);
360 break;
361 case GET_DDP_PARAMS:
362 ddpp = data;
363 ddpp->llimit = t3_read_reg(adapter, A_ULPRX_TDDP_LLIMIT);
364 ddpp->ulimit = t3_read_reg(adapter, A_ULPRX_TDDP_ULIMIT);
365 ddpp->tag_mask = t3_read_reg(adapter, A_ULPRX_TDDP_TAGMASK);
366 break;
367 case GET_PORTS:
368 ports = data;
369 ports->nports = adapter->params.nports;
370 for_each_port(adapter, i)
371 ports->lldevs[i] = adapter->port[i];
372 break;
373 case ULP_ISCSI_GET_PARAMS:
374 case ULP_ISCSI_SET_PARAMS:
375 if (!offload_running(adapter))
376 return -EAGAIN;
377 return cxgb_ulp_iscsi_ctl(adapter, req, data);
378 case RDMA_GET_PARAMS:
379 case RDMA_CQ_OP:
380 case RDMA_CQ_SETUP:
381 case RDMA_CQ_DISABLE:
382 case RDMA_CTRL_QP_SETUP:
383 case RDMA_GET_MEM:
384 if (!offload_running(adapter))
385 return -EAGAIN;
386 return cxgb_rdma_ctl(adapter, req, data);
e22bb45d
DLR		 387 case GET_RX_PAGE_INFO:
388 rx_page_info = data;
389 rx_page_info->page_size = tp->rx_pg_size;
390 rx_page_info->num = tp->rx_num_pgs;
391 break;
4d22de3e
DLR		 392 default:
393 return -EOPNOTSUPP;
394 }
395 return 0;
396}
397
398/*
399 * Dummy handler for Rx offload packets in case we get an offload packet before
400 * proper processing is setup. This complains and drops the packet as it isn't
401 * normal to get offload packets at this stage.
402 */
403static int rx_offload_blackhole(struct t3cdev *dev, struct sk_buff **skbs,
404 int n)
405{
406 CH_ERR(tdev2adap(dev), "%d unexpected offload packets, first data %u\n",
b5344972 407 n, ntohl(*(__be32 *)skbs[0]->data));
4d22de3e
DLR		 408 while (n--)
409 dev_kfree_skb_any(skbs[n]);
410 return 0;
411}
412
413static void dummy_neigh_update(struct t3cdev *dev, struct neighbour *neigh)
414{
415}
416
417void cxgb3_set_dummy_ops(struct t3cdev *dev)
418{
419 dev->recv = rx_offload_blackhole;
420 dev->neigh_update = dummy_neigh_update;
421}
422
423/*
424 * Free an active-open TID.
425 */
426void *cxgb3_free_atid(struct t3cdev *tdev, int atid)
427{
428 struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
429 union active_open_entry *p = atid2entry(t, atid);
430 void *ctx = p->t3c_tid.ctx;
431
432 spin_lock_bh(&t->atid_lock);
433 p->next = t->afree;
434 t->afree = p;
435 t->atids_in_use--;
436 spin_unlock_bh(&t->atid_lock);
437
438 return ctx;
439}
440
441EXPORT_SYMBOL(cxgb3_free_atid);
442
443/*
444 * Free a server TID and return it to the free pool.
445 */
446void cxgb3_free_stid(struct t3cdev *tdev, int stid)
447{
448 struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
449 union listen_entry *p = stid2entry(t, stid);
450
451 spin_lock_bh(&t->stid_lock);
452 p->next = t->sfree;
453 t->sfree = p;
454 t->stids_in_use--;
455 spin_unlock_bh(&t->stid_lock);
456}
457
458EXPORT_SYMBOL(cxgb3_free_stid);
459
460void cxgb3_insert_tid(struct t3cdev *tdev, struct cxgb3_client *client,
461 void *ctx, unsigned int tid)
462{
463 struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
464
465 t->tid_tab[tid].client = client;
466 t->tid_tab[tid].ctx = ctx;
467 atomic_inc(&t->tids_in_use);
468}
469
470EXPORT_SYMBOL(cxgb3_insert_tid);
471
472/*
473 * Populate a TID_RELEASE WR. The skb must be already propely sized.
474 */
475static inline void mk_tid_release(struct sk_buff *skb, unsigned int tid)
476{
477 struct cpl_tid_release *req;
478
479 skb->priority = CPL_PRIORITY_SETUP;
480 req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req));
481 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
482 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid));
483}
484
485static void t3_process_tid_release_list(struct work_struct *work)
486{
487 struct t3c_data *td = container_of(work, struct t3c_data,
488 tid_release_task);
489 struct sk_buff *skb;
490 struct t3cdev *tdev = td->dev;
491
492
493 spin_lock_bh(&td->tid_release_lock);
494 while (td->tid_release_list) {
495 struct t3c_tid_entry *p = td->tid_release_list;
496
497 td->tid_release_list = (struct t3c_tid_entry *)p->ctx;
498 spin_unlock_bh(&td->tid_release_lock);
499
500 skb = alloc_skb(sizeof(struct cpl_tid_release),
501 GFP_KERNEL | __GFP_NOFAIL);
502 mk_tid_release(skb, p - td->tid_maps.tid_tab);
503 cxgb3_ofld_send(tdev, skb);
504 p->ctx = NULL;
505 spin_lock_bh(&td->tid_release_lock);
506 }
507 spin_unlock_bh(&td->tid_release_lock);
508}
509
510/* use ctx as a next pointer in the tid release list */
511void cxgb3_queue_tid_release(struct t3cdev *tdev, unsigned int tid)
512{
513 struct t3c_data *td = T3C_DATA(tdev);
514 struct t3c_tid_entry *p = &td->tid_maps.tid_tab[tid];
515
516 spin_lock_bh(&td->tid_release_lock);
517 p->ctx = (void *)td->tid_release_list;
606fcd0b 518 p->client = NULL;
4d22de3e
DLR		 519 td->tid_release_list = p;
520 if (!p->ctx)
521 schedule_work(&td->tid_release_task);
522 spin_unlock_bh(&td->tid_release_lock);
523}
524
525EXPORT_SYMBOL(cxgb3_queue_tid_release);
526
527/*
528 * Remove a tid from the TID table. A client may defer processing its last
529 * CPL message if it is locked at the time it arrives, and while the message
530 * sits in the client's backlog the TID may be reused for another connection.
531 * To handle this we atomically switch the TID association if it still points
532 * to the original client context.
533 */
534void cxgb3_remove_tid(struct t3cdev *tdev, void *ctx, unsigned int tid)
535{
536 struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
537
538 BUG_ON(tid >= t->ntids);
539 if (tdev->type == T3A)
540 (void)cmpxchg(&t->tid_tab[tid].ctx, ctx, NULL);
541 else {
542 struct sk_buff *skb;
543
544 skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC);
545 if (likely(skb)) {
546 mk_tid_release(skb, tid);
547 cxgb3_ofld_send(tdev, skb);
548 t->tid_tab[tid].ctx = NULL;
549 } else
550 cxgb3_queue_tid_release(tdev, tid);
551 }
552 atomic_dec(&t->tids_in_use);
553}
554
555EXPORT_SYMBOL(cxgb3_remove_tid);
556
557int cxgb3_alloc_atid(struct t3cdev *tdev, struct cxgb3_client *client,
558 void *ctx)
559{
560 int atid = -1;
561 struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
562
563 spin_lock_bh(&t->atid_lock);
9f238486
DLR		 564 if (t->afree &&
565 t->atids_in_use + atomic_read(&t->tids_in_use) + MC5_MIN_TIDS <=
566 t->ntids) {
4d22de3e
DLR		 567 union active_open_entry *p = t->afree;
568
569 atid = (p - t->atid_tab) + t->atid_base;
570 t->afree = p->next;
571 p->t3c_tid.ctx = ctx;
572 p->t3c_tid.client = client;
573 t->atids_in_use++;
574 }
575 spin_unlock_bh(&t->atid_lock);
576 return atid;
577}
578
579EXPORT_SYMBOL(cxgb3_alloc_atid);
580
581int cxgb3_alloc_stid(struct t3cdev *tdev, struct cxgb3_client *client,
582 void *ctx)
583{
584 int stid = -1;
585 struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
586
587 spin_lock_bh(&t->stid_lock);
588 if (t->sfree) {
589 union listen_entry *p = t->sfree;
590
591 stid = (p - t->stid_tab) + t->stid_base;
592 t->sfree = p->next;
593 p->t3c_tid.ctx = ctx;
594 p->t3c_tid.client = client;
595 t->stids_in_use++;
596 }
597 spin_unlock_bh(&t->stid_lock);
598 return stid;
599}
600
601EXPORT_SYMBOL(cxgb3_alloc_stid);
602
5fbf816f
DLR		 603/* Get the t3cdev associated with a net_device */
604struct t3cdev *dev2t3cdev(struct net_device *dev)
605{
606 const struct port_info *pi = netdev_priv(dev);
607
608 return (struct t3cdev *)pi->adapter;
609}
610
611EXPORT_SYMBOL(dev2t3cdev);
612
4d22de3e
DLR		 613static int do_smt_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
614{
615 struct cpl_smt_write_rpl *rpl = cplhdr(skb);
616
617 if (rpl->status != CPL_ERR_NONE)
618 printk(KERN_ERR
619 "Unexpected SMT_WRITE_RPL status %u for entry %u\n",
620 rpl->status, GET_TID(rpl));
621
622 return CPL_RET_BUF_DONE;
623}
624
625static int do_l2t_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
626{
627 struct cpl_l2t_write_rpl *rpl = cplhdr(skb);
628
629 if (rpl->status != CPL_ERR_NONE)
630 printk(KERN_ERR
631 "Unexpected L2T_WRITE_RPL status %u for entry %u\n",
632 rpl->status, GET_TID(rpl));
633
634 return CPL_RET_BUF_DONE;
635}
636
637static int do_act_open_rpl(struct t3cdev *dev, struct sk_buff *skb)
638{
639 struct cpl_act_open_rpl *rpl = cplhdr(skb);
640 unsigned int atid = G_TID(ntohl(rpl->atid));
641 struct t3c_tid_entry *t3c_tid;
642
643 t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
606fcd0b
DLR		 644 if (t3c_tid && t3c_tid->ctx && t3c_tid->client &&
645 t3c_tid->client->handlers &&
4d22de3e
DLR		 646 t3c_tid->client->handlers[CPL_ACT_OPEN_RPL]) {
647 return t3c_tid->client->handlers[CPL_ACT_OPEN_RPL] (dev, skb,
648 t3c_tid->
649 ctx);
650 } else {
651 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
652 dev->name, CPL_ACT_OPEN_RPL);
653 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
654 }
655}
656
657static int do_stid_rpl(struct t3cdev *dev, struct sk_buff *skb)
658{
659 union opcode_tid *p = cplhdr(skb);
660 unsigned int stid = G_TID(ntohl(p->opcode_tid));
661 struct t3c_tid_entry *t3c_tid;
662
663 t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
606fcd0b 664 if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
4d22de3e
DLR		 665 t3c_tid->client->handlers[p->opcode]) {
666 return t3c_tid->client->handlers[p->opcode] (dev, skb,
667 t3c_tid->ctx);
668 } else {
669 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
670 dev->name, p->opcode);
671 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
672 }
673}
674
675static int do_hwtid_rpl(struct t3cdev *dev, struct sk_buff *skb)
676{
677 union opcode_tid *p = cplhdr(skb);
678 unsigned int hwtid = G_TID(ntohl(p->opcode_tid));
679 struct t3c_tid_entry *t3c_tid;
680
681 t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
606fcd0b 682 if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
4d22de3e
DLR		 683 t3c_tid->client->handlers[p->opcode]) {
684 return t3c_tid->client->handlers[p->opcode]
685 (dev, skb, t3c_tid->ctx);
686 } else {
687 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
688 dev->name, p->opcode);
689 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
690 }
691}
692
693static int do_cr(struct t3cdev *dev, struct sk_buff *skb)
694{
695 struct cpl_pass_accept_req *req = cplhdr(skb);
696 unsigned int stid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
c9a6ce50 697 struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
4d22de3e 698 struct t3c_tid_entry *t3c_tid;
c9a6ce50 699 unsigned int tid = GET_TID(req);
4d22de3e 700
c9a6ce50
DLR		 701 if (unlikely(tid >= t->ntids)) {
702 printk("%s: passive open TID %u too large\n",
703 dev->name, tid);
704 t3_fatal_err(tdev2adap(dev));
705 return CPL_RET_BUF_DONE;
706 }
707
708 t3c_tid = lookup_stid(t, stid);
709 if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
4d22de3e
DLR		 710 t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]) {
711 return t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]
712 (dev, skb, t3c_tid->ctx);
713 } else {
714 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
715 dev->name, CPL_PASS_ACCEPT_REQ);
716 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
717 }
718}
719
606fcd0b
DLR		 720/*
721 * Returns an sk_buff for a reply CPL message of size len. If the input
722 * sk_buff has no other users it is trimmed and reused, otherwise a new buffer
723 * is allocated. The input skb must be of size at least len. Note that this
724 * operation does not destroy the original skb data even if it decides to reuse
725 * the buffer.
726 */
727static struct sk_buff *cxgb3_get_cpl_reply_skb(struct sk_buff *skb, size_t len,
1f41bb3a 728 gfp_t gfp)
606fcd0b
DLR		 729{
730 if (likely(!skb_cloned(skb))) {
731 BUG_ON(skb->len < len);
732 __skb_trim(skb, len);
733 skb_get(skb);
734 } else {
735 skb = alloc_skb(len, gfp);
736 if (skb)
737 __skb_put(skb, len);
738 }
739 return skb;
740}
741
4d22de3e
DLR		 742static int do_abort_req_rss(struct t3cdev *dev, struct sk_buff *skb)
743{
744 union opcode_tid *p = cplhdr(skb);
745 unsigned int hwtid = G_TID(ntohl(p->opcode_tid));
746 struct t3c_tid_entry *t3c_tid;
747
748 t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
606fcd0b 749 if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
4d22de3e
DLR		 750 t3c_tid->client->handlers[p->opcode]) {
751 return t3c_tid->client->handlers[p->opcode]
752 (dev, skb, t3c_tid->ctx);
753 } else {
754 struct cpl_abort_req_rss *req = cplhdr(skb);
755 struct cpl_abort_rpl *rpl;
606fcd0b
DLR		 756 struct sk_buff *reply_skb;
757 unsigned int tid = GET_TID(req);
758 u8 cmd = req->status;
759
760 if (req->status == CPL_ERR_RTX_NEG_ADVICE ||
761 req->status == CPL_ERR_PERSIST_NEG_ADVICE)
762 goto out;
4d22de3e 763
606fcd0b
DLR		 764 reply_skb = cxgb3_get_cpl_reply_skb(skb,
765 sizeof(struct
766 cpl_abort_rpl),
767 GFP_ATOMIC);
768
769 if (!reply_skb) {
4d22de3e
DLR		 770 printk("do_abort_req_rss: couldn't get skb!\n");
771 goto out;
772 }
606fcd0b
DLR		 773 reply_skb->priority = CPL_PRIORITY_DATA;
774 __skb_put(reply_skb, sizeof(struct cpl_abort_rpl));
775 rpl = cplhdr(reply_skb);
4d22de3e
DLR		 776 rpl->wr.wr_hi =
777 htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_RPL));
606fcd0b
DLR		 778 rpl->wr.wr_lo = htonl(V_WR_TID(tid));
779 OPCODE_TID(rpl) = htonl(MK_OPCODE_TID(CPL_ABORT_RPL, tid));
780 rpl->cmd = cmd;
781 cxgb3_ofld_send(dev, reply_skb);
4d22de3e
DLR		 782out:
783 return CPL_RET_BUF_DONE;
784 }
785}
786
787static int do_act_establish(struct t3cdev *dev, struct sk_buff *skb)
788{
789 struct cpl_act_establish *req = cplhdr(skb);
790 unsigned int atid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
c9a6ce50 791 struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
4d22de3e 792 struct t3c_tid_entry *t3c_tid;
c9a6ce50 793 unsigned int tid = GET_TID(req);
4d22de3e 794
c9a6ce50
DLR		 795 if (unlikely(tid >= t->ntids)) {
796 printk("%s: active establish TID %u too large\n",
797 dev->name, tid);
798 t3_fatal_err(tdev2adap(dev));
799 return CPL_RET_BUF_DONE;
800 }
801
802 t3c_tid = lookup_atid(t, atid);
606fcd0b 803 if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
4d22de3e
DLR		 804 t3c_tid->client->handlers[CPL_ACT_ESTABLISH]) {
805 return t3c_tid->client->handlers[CPL_ACT_ESTABLISH]
806 (dev, skb, t3c_tid->ctx);
807 } else {
808 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
c9a6ce50 809 dev->name, CPL_ACT_ESTABLISH);
4d22de3e
DLR		 810 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
811 }
812}
813
4d22de3e
DLR		 814static int do_trace(struct t3cdev *dev, struct sk_buff *skb)
815{
816 struct cpl_trace_pkt *p = cplhdr(skb);
817
b5344972 818 skb->protocol = htons(0xffff);
4d22de3e
DLR		 819 skb->dev = dev->lldev;
820 skb_pull(skb, sizeof(*p));
459a98ed 821 skb_reset_mac_header(skb);
4d22de3e
DLR		 822 netif_receive_skb(skb);
823 return 0;
824}
825
826static int do_term(struct t3cdev *dev, struct sk_buff *skb)
827{
828 unsigned int hwtid = ntohl(skb->priority) >> 8 & 0xfffff;
829 unsigned int opcode = G_OPCODE(ntohl(skb->csum));
830 struct t3c_tid_entry *t3c_tid;
831
832 t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
606fcd0b 833 if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
4d22de3e
DLR		 834 t3c_tid->client->handlers[opcode]) {
835 return t3c_tid->client->handlers[opcode] (dev, skb,
836 t3c_tid->ctx);
837 } else {
838 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
839 dev->name, opcode);
840 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
841 }
842}
843
844static int nb_callback(struct notifier_block *self, unsigned long event,
845 void *ctx)
846{
847 switch (event) {
848 case (NETEVENT_NEIGH_UPDATE):{
849 cxgb_neigh_update((struct neighbour *)ctx);
850 break;
851 }
852 case (NETEVENT_PMTU_UPDATE):
853 break;
854 case (NETEVENT_REDIRECT):{
855 struct netevent_redirect *nr = ctx;
856 cxgb_redirect(nr->old, nr->new);
857 cxgb_neigh_update(nr->new->neighbour);
858 break;
859 }
860 default:
861 break;
862 }
863 return 0;
864}
865
866static struct notifier_block nb = {
867 .notifier_call = nb_callback
868};
869
870/*
871 * Process a received packet with an unknown/unexpected CPL opcode.
872 */
873static int do_bad_cpl(struct t3cdev *dev, struct sk_buff *skb)
874{
875 printk(KERN_ERR "%s: received bad CPL command 0x%x\n", dev->name,
876 *skb->data);
877 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
878}
879
880/*
881 * Handlers for each CPL opcode
882 */
883static cpl_handler_func cpl_handlers[NUM_CPL_CMDS];
884
885/*
886 * Add a new handler to the CPL dispatch table. A NULL handler may be supplied
887 * to unregister an existing handler.
888 */
889void t3_register_cpl_handler(unsigned int opcode, cpl_handler_func h)
890{
891 if (opcode < NUM_CPL_CMDS)
892 cpl_handlers[opcode] = h ? h : do_bad_cpl;
893 else
894 printk(KERN_ERR "T3C: handler registration for "
895 "opcode %x failed\n", opcode);
896}
897
898EXPORT_SYMBOL(t3_register_cpl_handler);
899
900/*
901 * T3CDEV's receive method.
902 */
903int process_rx(struct t3cdev *dev, struct sk_buff **skbs, int n)
904{
905 while (n--) {
906 struct sk_buff *skb = *skbs++;
907 unsigned int opcode = G_OPCODE(ntohl(skb->csum));
908 int ret = cpl_handlers[opcode] (dev, skb);
909
910#if VALIDATE_TID
911 if (ret & CPL_RET_UNKNOWN_TID) {
912 union opcode_tid *p = cplhdr(skb);
913
914 printk(KERN_ERR "%s: CPL message (opcode %u) had "
915 "unknown TID %u\n", dev->name, opcode,
916 G_TID(ntohl(p->opcode_tid)));
917 }
918#endif
919 if (ret & CPL_RET_BUF_DONE)
920 kfree_skb(skb);
921 }
922 return 0;
923}
924
925/*
926 * Sends an sk_buff to a T3C driver after dealing with any active network taps.
927 */
928int cxgb3_ofld_send(struct t3cdev *dev, struct sk_buff *skb)
929{
930 int r;
931
932 local_bh_disable();
933 r = dev->send(dev, skb);
934 local_bh_enable();
935 return r;
936}
937
938EXPORT_SYMBOL(cxgb3_ofld_send);
939
940static int is_offloading(struct net_device *dev)
941{
942 struct adapter *adapter;
943 int i;
944
945 read_lock_bh(&adapter_list_lock);
946 list_for_each_entry(adapter, &adapter_list, adapter_list) {
947 for_each_port(adapter, i) {
948 if (dev == adapter->port[i]) {
949 read_unlock_bh(&adapter_list_lock);
950 return 1;
951 }
952 }
953 }
954 read_unlock_bh(&adapter_list_lock);
955 return 0;
956}
957
958void cxgb_neigh_update(struct neighbour *neigh)
959{
960 struct net_device *dev = neigh->dev;
961
962 if (dev && (is_offloading(dev))) {
5fbf816f 963 struct t3cdev *tdev = dev2t3cdev(dev);
4d22de3e
DLR		 964
965 BUG_ON(!tdev);
966 t3_l2t_update(tdev, neigh);
967 }
968}
969
970static void set_l2t_ix(struct t3cdev *tdev, u32 tid, struct l2t_entry *e)
971{
972 struct sk_buff *skb;
973 struct cpl_set_tcb_field *req;
974
975 skb = alloc_skb(sizeof(*req), GFP_ATOMIC);
976 if (!skb) {
977 printk(KERN_ERR "%s: cannot allocate skb!\n", __FUNCTION__);
978 return;
979 }
980 skb->priority = CPL_PRIORITY_CONTROL;
981 req = (struct cpl_set_tcb_field *)skb_put(skb, sizeof(*req));
982 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
983 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid));
984 req->reply = 0;
985 req->cpu_idx = 0;
986 req->word = htons(W_TCB_L2T_IX);
987 req->mask = cpu_to_be64(V_TCB_L2T_IX(M_TCB_L2T_IX));
988 req->val = cpu_to_be64(V_TCB_L2T_IX(e->idx));
989 tdev->send(tdev, skb);
990}
991
992void cxgb_redirect(struct dst_entry *old, struct dst_entry *new)
993{
994 struct net_device *olddev, *newdev;
995 struct tid_info *ti;
996 struct t3cdev *tdev;
997 u32 tid;
998 int update_tcb;
999 struct l2t_entry *e;
1000 struct t3c_tid_entry *te;
1001
1002 olddev = old->neighbour->dev;
1003 newdev = new->neighbour->dev;
1004 if (!is_offloading(olddev))
1005 return;
1006 if (!is_offloading(newdev)) {
1007 printk(KERN_WARNING "%s: Redirect to non-offload"
1008 "device ignored.\n", __FUNCTION__);
1009 return;
1010 }
5fbf816f 1011 tdev = dev2t3cdev(olddev);
4d22de3e 1012 BUG_ON(!tdev);
5fbf816f 1013 if (tdev != dev2t3cdev(newdev)) {
4d22de3e
DLR		 1014 printk(KERN_WARNING "%s: Redirect to different "
1015 "offload device ignored.\n", __FUNCTION__);
1016 return;
1017 }
1018
1019 /* Add new L2T entry */
1020 e = t3_l2t_get(tdev, new->neighbour, newdev);
1021 if (!e) {
1022 printk(KERN_ERR "%s: couldn't allocate new l2t entry!\n",
1023 __FUNCTION__);
1024 return;
1025 }
1026
1027 /* Walk tid table and notify clients of dst change. */
1028 ti = &(T3C_DATA(tdev))->tid_maps;
1029 for (tid = 0; tid < ti->ntids; tid++) {
1030 te = lookup_tid(ti, tid);
1031 BUG_ON(!te);
606fcd0b 1032 if (te && te->ctx && te->client && te->client->redirect) {
4d22de3e
DLR		 1033 update_tcb = te->client->redirect(te->ctx, old, new, e);
1034 if (update_tcb) {
1035 l2t_hold(L2DATA(tdev), e);
1036 set_l2t_ix(tdev, tid, e);
1037 }
1038 }
1039 }
1040 l2t_release(L2DATA(tdev), e);
1041}
1042
1043/*
1044 * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc.
1045 * The allocated memory is cleared.
1046 */
1047void *cxgb_alloc_mem(unsigned long size)
1048{
1049 void *p = kmalloc(size, GFP_KERNEL);
1050
1051 if (!p)
1052 p = vmalloc(size);
1053 if (p)
1054 memset(p, 0, size);
1055 return p;
1056}
1057
1058/*
1059 * Free memory allocated through t3_alloc_mem().
1060 */
1061void cxgb_free_mem(void *addr)
1062{
1063 unsigned long p = (unsigned long)addr;
1064
1065 if (p >= VMALLOC_START && p < VMALLOC_END)
1066 vfree(addr);
1067 else
1068 kfree(addr);
1069}
1070
1071/*
1072 * Allocate and initialize the TID tables. Returns 0 on success.
1073 */
1074static int init_tid_tabs(struct tid_info *t, unsigned int ntids,
1075 unsigned int natids, unsigned int nstids,
1076 unsigned int atid_base, unsigned int stid_base)
1077{
1078 unsigned long size = ntids * sizeof(*t->tid_tab) +
1079 natids * sizeof(*t->atid_tab) + nstids * sizeof(*t->stid_tab);
1080
1081 t->tid_tab = cxgb_alloc_mem(size);
1082 if (!t->tid_tab)
1083 return -ENOMEM;
1084
1085 t->stid_tab = (union listen_entry *)&t->tid_tab[ntids];
1086 t->atid_tab = (union active_open_entry *)&t->stid_tab[nstids];
1087 t->ntids = ntids;
1088 t->nstids = nstids;
1089 t->stid_base = stid_base;
1090 t->sfree = NULL;
1091 t->natids = natids;
1092 t->atid_base = atid_base;
1093 t->afree = NULL;
1094 t->stids_in_use = t->atids_in_use = 0;
1095 atomic_set(&t->tids_in_use, 0);
1096 spin_lock_init(&t->stid_lock);
1097 spin_lock_init(&t->atid_lock);
1098
1099 /*
1100 * Setup the free lists for stid_tab and atid_tab.
1101 */
1102 if (nstids) {
1103 while (--nstids)
1104 t->stid_tab[nstids - 1].next = &t->stid_tab[nstids];
1105 t->sfree = t->stid_tab;
1106 }
1107 if (natids) {
1108 while (--natids)
1109 t->atid_tab[natids - 1].next = &t->atid_tab[natids];
1110 t->afree = t->atid_tab;
1111 }
1112 return 0;
1113}
1114
1115static void free_tid_maps(struct tid_info *t)
1116{
1117 cxgb_free_mem(t->tid_tab);
1118}
1119
1120static inline void add_adapter(struct adapter *adap)
1121{
1122 write_lock_bh(&adapter_list_lock);
1123 list_add_tail(&adap->adapter_list, &adapter_list);
1124 write_unlock_bh(&adapter_list_lock);
1125}
1126
1127static inline void remove_adapter(struct adapter *adap)
1128{
1129 write_lock_bh(&adapter_list_lock);
1130 list_del(&adap->adapter_list);
1131 write_unlock_bh(&adapter_list_lock);
1132}
1133
1134int cxgb3_offload_activate(struct adapter *adapter)
1135{
1136 struct t3cdev *dev = &adapter->tdev;
1137 int natids, err;
1138 struct t3c_data *t;
1139 struct tid_range stid_range, tid_range;
1140 struct mtutab mtutab;
1141 unsigned int l2t_capacity;
1142
1143 t = kcalloc(1, sizeof(*t), GFP_KERNEL);
1144 if (!t)
1145 return -ENOMEM;
1146
1147 err = -EOPNOTSUPP;
1148 if (dev->ctl(dev, GET_TX_MAX_CHUNK, &t->tx_max_chunk) < 0 ||
1149 dev->ctl(dev, GET_MAX_OUTSTANDING_WR, &t->max_wrs) < 0 ||
1150 dev->ctl(dev, GET_L2T_CAPACITY, &l2t_capacity) < 0 ||
1151 dev->ctl(dev, GET_MTUS, &mtutab) < 0 ||
1152 dev->ctl(dev, GET_TID_RANGE, &tid_range) < 0 ||
1153 dev->ctl(dev, GET_STID_RANGE, &stid_range) < 0)
1154 goto out_free;
1155
1156 err = -ENOMEM;
1157 L2DATA(dev) = t3_init_l2t(l2t_capacity);
1158 if (!L2DATA(dev))
1159 goto out_free;
1160
1161 natids = min(tid_range.num / 2, MAX_ATIDS);
1162 err = init_tid_tabs(&t->tid_maps, tid_range.num, natids,
1163 stid_range.num, ATID_BASE, stid_range.base);
1164 if (err)
1165 goto out_free_l2t;
1166
1167 t->mtus = mtutab.mtus;
1168 t->nmtus = mtutab.size;
1169
1170 INIT_WORK(&t->tid_release_task, t3_process_tid_release_list);
1171 spin_lock_init(&t->tid_release_lock);
1172 INIT_LIST_HEAD(&t->list_node);
1173 t->dev = dev;
1174
1175 T3C_DATA(dev) = t;
1176 dev->recv = process_rx;
1177 dev->neigh_update = t3_l2t_update;
1178
1179 /* Register netevent handler once */
1180 if (list_empty(&adapter_list))
1181 register_netevent_notifier(&nb);
1182
1183 add_adapter(adapter);
1184 return 0;
1185
1186out_free_l2t:
1187 t3_free_l2t(L2DATA(dev));
1188 L2DATA(dev) = NULL;
1189out_free:
1190 kfree(t);
1191 return err;
1192}
1193
1194void cxgb3_offload_deactivate(struct adapter *adapter)
1195{
1196 struct t3cdev *tdev = &adapter->tdev;
1197 struct t3c_data *t = T3C_DATA(tdev);
1198
1199 remove_adapter(adapter);
1200 if (list_empty(&adapter_list))
1201 unregister_netevent_notifier(&nb);
1202
1203 free_tid_maps(&t->tid_maps);
1204 T3C_DATA(tdev) = NULL;
1205 t3_free_l2t(L2DATA(tdev));
1206 L2DATA(tdev) = NULL;
1207 kfree(t);
1208}
1209
1210static inline void register_tdev(struct t3cdev *tdev)
1211{
1212 static int unit;
1213
1214 mutex_lock(&cxgb3_db_lock);
1215 snprintf(tdev->name, sizeof(tdev->name), "ofld_dev%d", unit++);
1216 list_add_tail(&tdev->ofld_dev_list, &ofld_dev_list);
1217 mutex_unlock(&cxgb3_db_lock);
1218}
1219
1220static inline void unregister_tdev(struct t3cdev *tdev)
1221{
1222 mutex_lock(&cxgb3_db_lock);
1223 list_del(&tdev->ofld_dev_list);
1224 mutex_unlock(&cxgb3_db_lock);
1225}
1226
1227void __devinit cxgb3_adapter_ofld(struct adapter *adapter)
1228{
1229 struct t3cdev *tdev = &adapter->tdev;
1230
1231 INIT_LIST_HEAD(&tdev->ofld_dev_list);
1232
1233 cxgb3_set_dummy_ops(tdev);
1234 tdev->send = t3_offload_tx;
1235 tdev->ctl = cxgb_offload_ctl;
1236 tdev->type = adapter->params.rev == 0 ? T3A : T3B;
1237
1238 register_tdev(tdev);
1239}
1240
1241void __devexit cxgb3_adapter_unofld(struct adapter *adapter)
1242{
1243 struct t3cdev *tdev = &adapter->tdev;
1244
1245 tdev->recv = NULL;
1246 tdev->neigh_update = NULL;
1247
1248 unregister_tdev(tdev);
1249}
1250
1251void __init cxgb3_offload_init(void)
1252{
1253 int i;
1254
1255 for (i = 0; i < NUM_CPL_CMDS; ++i)
1256 cpl_handlers[i] = do_bad_cpl;
1257
1258 t3_register_cpl_handler(CPL_SMT_WRITE_RPL, do_smt_write_rpl);
1259 t3_register_cpl_handler(CPL_L2T_WRITE_RPL, do_l2t_write_rpl);
1260 t3_register_cpl_handler(CPL_PASS_OPEN_RPL, do_stid_rpl);
1261 t3_register_cpl_handler(CPL_CLOSE_LISTSRV_RPL, do_stid_rpl);
1262 t3_register_cpl_handler(CPL_PASS_ACCEPT_REQ, do_cr);
1263 t3_register_cpl_handler(CPL_PASS_ESTABLISH, do_hwtid_rpl);
1264 t3_register_cpl_handler(CPL_ABORT_RPL_RSS, do_hwtid_rpl);
1265 t3_register_cpl_handler(CPL_ABORT_RPL, do_hwtid_rpl);
1266 t3_register_cpl_handler(CPL_RX_URG_NOTIFY, do_hwtid_rpl);
1267 t3_register_cpl_handler(CPL_RX_DATA, do_hwtid_rpl);
1268 t3_register_cpl_handler(CPL_TX_DATA_ACK, do_hwtid_rpl);
1269 t3_register_cpl_handler(CPL_TX_DMA_ACK, do_hwtid_rpl);
1270 t3_register_cpl_handler(CPL_ACT_OPEN_RPL, do_act_open_rpl);
1271 t3_register_cpl_handler(CPL_PEER_CLOSE, do_hwtid_rpl);
1272 t3_register_cpl_handler(CPL_CLOSE_CON_RPL, do_hwtid_rpl);
1273 t3_register_cpl_handler(CPL_ABORT_REQ_RSS, do_abort_req_rss);
1274 t3_register_cpl_handler(CPL_ACT_ESTABLISH, do_act_establish);
6cdbd77e
DLR		 1275 t3_register_cpl_handler(CPL_SET_TCB_RPL, do_hwtid_rpl);
1276 t3_register_cpl_handler(CPL_GET_TCB_RPL, do_hwtid_rpl);
4d22de3e
DLR		 1277 t3_register_cpl_handler(CPL_RDMA_TERMINATE, do_term);
1278 t3_register_cpl_handler(CPL_RDMA_EC_STATUS, do_hwtid_rpl);
1279 t3_register_cpl_handler(CPL_TRACE_PKT, do_trace);
1280 t3_register_cpl_handler(CPL_RX_DATA_DDP, do_hwtid_rpl);
1281 t3_register_cpl_handler(CPL_RX_DDP_COMPLETE, do_hwtid_rpl);
1282 t3_register_cpl_handler(CPL_ISCSI_HDR, do_hwtid_rpl);
1283}
Linux kernel - Deliverables
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