Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/drivers/message/fusion/mptlan.c | |
3 | * IP Over Fibre Channel device driver. | |
748b77b1 | 4 | * For use with LSI Logic Fibre Channel PCI chip/adapters |
1da177e4 LT |
5 | * running LSI Logic Fusion MPT (Message Passing Technology) firmware. |
6 | * | |
748b77b1 | 7 | * Copyright (c) 2000-2005 LSI Logic Corporation |
1da177e4 | 8 | * |
1da177e4 LT |
9 | */ |
10 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
11 | /* | |
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; version 2 of the License. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | NO WARRANTY | |
22 | THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR | |
23 | CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT | |
24 | LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, | |
25 | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is | |
26 | solely responsible for determining the appropriateness of using and | |
27 | distributing the Program and assumes all risks associated with its | |
28 | exercise of rights under this Agreement, including but not limited to | |
29 | the risks and costs of program errors, damage to or loss of data, | |
30 | programs or equipment, and unavailability or interruption of operations. | |
31 | ||
32 | DISCLAIMER OF LIABILITY | |
33 | NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY | |
34 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
35 | DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND | |
36 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
37 | TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
38 | USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED | |
39 | HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES | |
40 | ||
41 | You should have received a copy of the GNU General Public License | |
42 | along with this program; if not, write to the Free Software | |
43 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
44 | */ | |
45 | ||
46 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
47 | /* | |
48 | * Define statements used for debugging | |
49 | */ | |
50 | //#define MPT_LAN_IO_DEBUG | |
51 | ||
52 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
53 | ||
54 | #include "mptlan.h" | |
55 | #include <linux/init.h> | |
56 | #include <linux/module.h> | |
57 | #include <linux/fs.h> | |
58 | ||
59 | #define MYNAM "mptlan" | |
60 | ||
61 | MODULE_LICENSE("GPL"); | |
62 | ||
63 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
64 | /* | |
65 | * MPT LAN message sizes without variable part. | |
66 | */ | |
67 | #define MPT_LAN_RECEIVE_POST_REQUEST_SIZE \ | |
68 | (sizeof(LANReceivePostRequest_t) - sizeof(SGE_MPI_UNION)) | |
69 | ||
70 | #define MPT_LAN_TRANSACTION32_SIZE \ | |
71 | (sizeof(SGETransaction32_t) - sizeof(u32)) | |
72 | ||
73 | /* | |
74 | * Fusion MPT LAN private structures | |
75 | */ | |
76 | ||
77 | struct NAA_Hosed { | |
78 | u16 NAA; | |
79 | u8 ieee[FC_ALEN]; | |
80 | struct NAA_Hosed *next; | |
81 | }; | |
82 | ||
83 | struct BufferControl { | |
84 | struct sk_buff *skb; | |
85 | dma_addr_t dma; | |
86 | unsigned int len; | |
87 | }; | |
88 | ||
89 | struct mpt_lan_priv { | |
90 | MPT_ADAPTER *mpt_dev; | |
91 | u8 pnum; /* Port number in the IOC. This is not a Unix network port! */ | |
92 | ||
93 | atomic_t buckets_out; /* number of unused buckets on IOC */ | |
94 | int bucketthresh; /* Send more when this many left */ | |
95 | ||
96 | int *mpt_txfidx; /* Free Tx Context list */ | |
97 | int mpt_txfidx_tail; | |
98 | spinlock_t txfidx_lock; | |
99 | ||
100 | int *mpt_rxfidx; /* Free Rx Context list */ | |
101 | int mpt_rxfidx_tail; | |
102 | spinlock_t rxfidx_lock; | |
103 | ||
104 | struct BufferControl *RcvCtl; /* Receive BufferControl structs */ | |
105 | struct BufferControl *SendCtl; /* Send BufferControl structs */ | |
106 | ||
107 | int max_buckets_out; /* Max buckets to send to IOC */ | |
108 | int tx_max_out; /* IOC's Tx queue len */ | |
109 | ||
110 | u32 total_posted; | |
111 | u32 total_received; | |
112 | struct net_device_stats stats; /* Per device statistics */ | |
113 | ||
c4028958 DH |
114 | struct delayed_work post_buckets_task; |
115 | struct net_device *dev; | |
1da177e4 LT |
116 | unsigned long post_buckets_active; |
117 | }; | |
118 | ||
119 | struct mpt_lan_ohdr { | |
120 | u16 dtype; | |
121 | u8 daddr[FC_ALEN]; | |
122 | u16 stype; | |
123 | u8 saddr[FC_ALEN]; | |
124 | }; | |
125 | ||
126 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
127 | ||
128 | /* | |
129 | * Forward protos... | |
130 | */ | |
131 | static int lan_reply (MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, | |
132 | MPT_FRAME_HDR *reply); | |
133 | static int mpt_lan_open(struct net_device *dev); | |
134 | static int mpt_lan_reset(struct net_device *dev); | |
135 | static int mpt_lan_close(struct net_device *dev); | |
c4028958 | 136 | static void mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv); |
1da177e4 LT |
137 | static void mpt_lan_wake_post_buckets_task(struct net_device *dev, |
138 | int priority); | |
139 | static int mpt_lan_receive_post_turbo(struct net_device *dev, u32 tmsg); | |
140 | static int mpt_lan_receive_post_reply(struct net_device *dev, | |
141 | LANReceivePostReply_t *pRecvRep); | |
142 | static int mpt_lan_send_turbo(struct net_device *dev, u32 tmsg); | |
143 | static int mpt_lan_send_reply(struct net_device *dev, | |
144 | LANSendReply_t *pSendRep); | |
145 | static int mpt_lan_ioc_reset(MPT_ADAPTER *ioc, int reset_phase); | |
146 | static int mpt_lan_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); | |
147 | static unsigned short mpt_lan_type_trans(struct sk_buff *skb, | |
148 | struct net_device *dev); | |
149 | ||
150 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
151 | /* | |
152 | * Fusion MPT LAN private data | |
153 | */ | |
154 | static int LanCtx = -1; | |
155 | ||
156 | static u32 max_buckets_out = 127; | |
157 | static u32 tx_max_out_p = 127 - 16; | |
158 | ||
159 | #ifdef QLOGIC_NAA_WORKAROUND | |
160 | static struct NAA_Hosed *mpt_bad_naa = NULL; | |
161 | DEFINE_RWLOCK(bad_naa_lock); | |
162 | #endif | |
163 | ||
164 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
165 | /* | |
166 | * Fusion MPT LAN external data | |
167 | */ | |
168 | extern int mpt_lan_index; | |
169 | ||
170 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
171 | /** | |
172 | * lan_reply - Handle all data sent from the hardware. | |
173 | * @ioc: Pointer to MPT_ADAPTER structure | |
174 | * @mf: Pointer to original MPT request frame (NULL if TurboReply) | |
175 | * @reply: Pointer to MPT reply frame | |
176 | * | |
177 | * Returns 1 indicating original alloc'd request frame ptr | |
178 | * should be freed, or 0 if it shouldn't. | |
179 | */ | |
180 | static int | |
181 | lan_reply (MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *reply) | |
182 | { | |
183 | struct net_device *dev = ioc->netdev; | |
184 | int FreeReqFrame = 0; | |
185 | ||
186 | dioprintk((KERN_INFO MYNAM ": %s/%s: Got reply.\n", | |
187 | IOC_AND_NETDEV_NAMES_s_s(dev))); | |
188 | ||
189 | // dioprintk((KERN_INFO MYNAM "@lan_reply: mf = %p, reply = %p\n", | |
190 | // mf, reply)); | |
191 | ||
192 | if (mf == NULL) { | |
193 | u32 tmsg = CAST_PTR_TO_U32(reply); | |
194 | ||
195 | dioprintk((KERN_INFO MYNAM ": %s/%s: @lan_reply, tmsg %08x\n", | |
196 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
197 | tmsg)); | |
198 | ||
199 | switch (GET_LAN_FORM(tmsg)) { | |
200 | ||
201 | // NOTE! (Optimization) First case here is now caught in | |
202 | // mptbase.c::mpt_interrupt() routine and callcack here | |
748b77b1 | 203 | // is now skipped for this case! |
1da177e4 LT |
204 | #if 0 |
205 | case LAN_REPLY_FORM_MESSAGE_CONTEXT: | |
206 | // dioprintk((KERN_INFO MYNAM "/lan_reply: " | |
207 | // "MessageContext turbo reply received\n")); | |
208 | FreeReqFrame = 1; | |
209 | break; | |
210 | #endif | |
211 | ||
212 | case LAN_REPLY_FORM_SEND_SINGLE: | |
213 | // dioprintk((MYNAM "/lan_reply: " | |
214 | // "calling mpt_lan_send_reply (turbo)\n")); | |
215 | ||
748b77b1 | 216 | // Potential BUG here? |
1da177e4 LT |
217 | // FreeReqFrame = mpt_lan_send_turbo(dev, tmsg); |
218 | // If/when mpt_lan_send_turbo would return 1 here, | |
219 | // calling routine (mptbase.c|mpt_interrupt) | |
220 | // would Oops because mf has already been set | |
221 | // to NULL. So after return from this func, | |
222 | // mpt_interrupt() will attempt to put (NULL) mf ptr | |
223 | // item back onto its adapter FreeQ - Oops!:-( | |
224 | // It's Ok, since mpt_lan_send_turbo() *currently* | |
225 | // always returns 0, but..., just in case: | |
226 | ||
227 | (void) mpt_lan_send_turbo(dev, tmsg); | |
228 | FreeReqFrame = 0; | |
229 | ||
230 | break; | |
231 | ||
232 | case LAN_REPLY_FORM_RECEIVE_SINGLE: | |
233 | // dioprintk((KERN_INFO MYNAM "@lan_reply: " | |
234 | // "rcv-Turbo = %08x\n", tmsg)); | |
235 | mpt_lan_receive_post_turbo(dev, tmsg); | |
236 | break; | |
237 | ||
238 | default: | |
239 | printk (KERN_ERR MYNAM "/lan_reply: Got a turbo reply " | |
240 | "that I don't know what to do with\n"); | |
241 | ||
242 | /* CHECKME! Hmmm... FreeReqFrame is 0 here; is that right? */ | |
243 | ||
244 | break; | |
245 | } | |
246 | ||
247 | return FreeReqFrame; | |
248 | } | |
249 | ||
250 | // msg = (u32 *) reply; | |
251 | // dioprintk((KERN_INFO MYNAM "@lan_reply: msg = %08x %08x %08x %08x\n", | |
252 | // le32_to_cpu(msg[0]), le32_to_cpu(msg[1]), | |
253 | // le32_to_cpu(msg[2]), le32_to_cpu(msg[3]))); | |
254 | // dioprintk((KERN_INFO MYNAM "@lan_reply: Function = %02xh\n", | |
255 | // reply->u.hdr.Function)); | |
256 | ||
257 | switch (reply->u.hdr.Function) { | |
258 | ||
259 | case MPI_FUNCTION_LAN_SEND: | |
260 | { | |
261 | LANSendReply_t *pSendRep; | |
262 | ||
263 | pSendRep = (LANSendReply_t *) reply; | |
264 | FreeReqFrame = mpt_lan_send_reply(dev, pSendRep); | |
265 | break; | |
266 | } | |
267 | ||
268 | case MPI_FUNCTION_LAN_RECEIVE: | |
269 | { | |
270 | LANReceivePostReply_t *pRecvRep; | |
271 | ||
272 | pRecvRep = (LANReceivePostReply_t *) reply; | |
273 | if (pRecvRep->NumberOfContexts) { | |
274 | mpt_lan_receive_post_reply(dev, pRecvRep); | |
275 | if (!(pRecvRep->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)) | |
276 | FreeReqFrame = 1; | |
277 | } else | |
278 | dioprintk((KERN_INFO MYNAM "@lan_reply: zero context " | |
279 | "ReceivePostReply received.\n")); | |
280 | break; | |
281 | } | |
282 | ||
283 | case MPI_FUNCTION_LAN_RESET: | |
284 | /* Just a default reply. Might want to check it to | |
285 | * make sure that everything went ok. | |
286 | */ | |
287 | FreeReqFrame = 1; | |
288 | break; | |
289 | ||
290 | case MPI_FUNCTION_EVENT_NOTIFICATION: | |
291 | case MPI_FUNCTION_EVENT_ACK: | |
748b77b1 | 292 | /* _EVENT_NOTIFICATION should NOT come down this path any more. |
1da177e4 LT |
293 | * Should be routed to mpt_lan_event_process(), but just in case... |
294 | */ | |
295 | FreeReqFrame = 1; | |
296 | break; | |
297 | ||
298 | default: | |
299 | printk (KERN_ERR MYNAM "/lan_reply: Got a non-turbo " | |
300 | "reply that I don't know what to do with\n"); | |
301 | ||
302 | /* CHECKME! Hmmm... FreeReqFrame is 0 here; is that right? */ | |
303 | FreeReqFrame = 1; | |
304 | ||
305 | break; | |
306 | } | |
307 | ||
308 | return FreeReqFrame; | |
309 | } | |
310 | ||
311 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
312 | static int | |
313 | mpt_lan_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) | |
314 | { | |
315 | struct net_device *dev = ioc->netdev; | |
466544d8 MED |
316 | struct mpt_lan_priv *priv; |
317 | ||
318 | if (dev == NULL) | |
319 | return(1); | |
320 | else | |
321 | priv = netdev_priv(dev); | |
1da177e4 LT |
322 | |
323 | dlprintk((KERN_INFO MYNAM ": IOC %s_reset routed to LAN driver!\n", | |
324 | reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( | |
325 | reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); | |
326 | ||
327 | if (priv->mpt_rxfidx == NULL) | |
328 | return (1); | |
329 | ||
330 | if (reset_phase == MPT_IOC_SETUP_RESET) { | |
331 | ; | |
332 | } else if (reset_phase == MPT_IOC_PRE_RESET) { | |
333 | int i; | |
334 | unsigned long flags; | |
335 | ||
336 | netif_stop_queue(dev); | |
337 | ||
338 | dlprintk ((KERN_INFO "mptlan/ioc_reset: called netif_stop_queue for %s.\n", dev->name)); | |
339 | ||
340 | atomic_set(&priv->buckets_out, 0); | |
341 | ||
342 | /* Reset Rx Free Tail index and re-populate the queue. */ | |
343 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
344 | priv->mpt_rxfidx_tail = -1; | |
345 | for (i = 0; i < priv->max_buckets_out; i++) | |
346 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = i; | |
347 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
348 | } else { | |
c4028958 | 349 | mpt_lan_post_receive_buckets(priv); |
1da177e4 LT |
350 | netif_wake_queue(dev); |
351 | } | |
352 | ||
353 | return 1; | |
354 | } | |
355 | ||
356 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
357 | static int | |
358 | mpt_lan_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) | |
359 | { | |
360 | dlprintk((KERN_INFO MYNAM ": MPT event routed to LAN driver!\n")); | |
361 | ||
362 | switch (le32_to_cpu(pEvReply->Event)) { | |
363 | case MPI_EVENT_NONE: /* 00 */ | |
364 | case MPI_EVENT_LOG_DATA: /* 01 */ | |
365 | case MPI_EVENT_STATE_CHANGE: /* 02 */ | |
366 | case MPI_EVENT_UNIT_ATTENTION: /* 03 */ | |
367 | case MPI_EVENT_IOC_BUS_RESET: /* 04 */ | |
368 | case MPI_EVENT_EXT_BUS_RESET: /* 05 */ | |
369 | case MPI_EVENT_RESCAN: /* 06 */ | |
370 | /* Ok, do we need to do anything here? As far as | |
371 | I can tell, this is when a new device gets added | |
372 | to the loop. */ | |
373 | case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */ | |
374 | case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */ | |
375 | case MPI_EVENT_LOGOUT: /* 09 */ | |
376 | case MPI_EVENT_EVENT_CHANGE: /* 0A */ | |
377 | default: | |
378 | break; | |
379 | } | |
380 | ||
381 | /* | |
382 | * NOTE: pEvent->AckRequired handling now done in mptbase.c; | |
383 | * Do NOT do it here now! | |
384 | */ | |
385 | ||
386 | return 1; | |
387 | } | |
388 | ||
389 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
390 | static int | |
391 | mpt_lan_open(struct net_device *dev) | |
392 | { | |
393 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
394 | int i; | |
395 | ||
396 | if (mpt_lan_reset(dev) != 0) { | |
397 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
398 | ||
399 | printk (KERN_WARNING MYNAM "/lan_open: lan_reset failed."); | |
400 | ||
401 | if (mpt_dev->active) | |
402 | printk ("The ioc is active. Perhaps it needs to be" | |
403 | " reset?\n"); | |
404 | else | |
405 | printk ("The ioc in inactive, most likely in the " | |
406 | "process of being reset. Please try again in " | |
407 | "a moment.\n"); | |
408 | } | |
409 | ||
410 | priv->mpt_txfidx = kmalloc(priv->tx_max_out * sizeof(int), GFP_KERNEL); | |
411 | if (priv->mpt_txfidx == NULL) | |
412 | goto out; | |
413 | priv->mpt_txfidx_tail = -1; | |
414 | ||
1ca00bb7 | 415 | priv->SendCtl = kcalloc(priv->tx_max_out, sizeof(struct BufferControl), |
1da177e4 LT |
416 | GFP_KERNEL); |
417 | if (priv->SendCtl == NULL) | |
418 | goto out_mpt_txfidx; | |
1ca00bb7 | 419 | for (i = 0; i < priv->tx_max_out; i++) |
1da177e4 | 420 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = i; |
1da177e4 LT |
421 | |
422 | dlprintk((KERN_INFO MYNAM "@lo: Finished initializing SendCtl\n")); | |
423 | ||
424 | priv->mpt_rxfidx = kmalloc(priv->max_buckets_out * sizeof(int), | |
425 | GFP_KERNEL); | |
426 | if (priv->mpt_rxfidx == NULL) | |
427 | goto out_SendCtl; | |
428 | priv->mpt_rxfidx_tail = -1; | |
429 | ||
1ca00bb7 CH |
430 | priv->RcvCtl = kcalloc(priv->max_buckets_out, |
431 | sizeof(struct BufferControl), | |
1da177e4 LT |
432 | GFP_KERNEL); |
433 | if (priv->RcvCtl == NULL) | |
434 | goto out_mpt_rxfidx; | |
1ca00bb7 | 435 | for (i = 0; i < priv->max_buckets_out; i++) |
1da177e4 | 436 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = i; |
1da177e4 LT |
437 | |
438 | /**/ dlprintk((KERN_INFO MYNAM "/lo: txfidx contains - ")); | |
439 | /**/ for (i = 0; i < priv->tx_max_out; i++) | |
440 | /**/ dlprintk((" %xh", priv->mpt_txfidx[i])); | |
441 | /**/ dlprintk(("\n")); | |
442 | ||
443 | dlprintk((KERN_INFO MYNAM "/lo: Finished initializing RcvCtl\n")); | |
444 | ||
c4028958 | 445 | mpt_lan_post_receive_buckets(priv); |
1da177e4 LT |
446 | printk(KERN_INFO MYNAM ": %s/%s: interface up & active\n", |
447 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
448 | ||
449 | if (mpt_event_register(LanCtx, mpt_lan_event_process) != 0) { | |
450 | printk (KERN_WARNING MYNAM "/lo: Unable to register for Event" | |
451 | " Notifications. This is a bad thing! We're not going " | |
452 | "to go ahead, but I'd be leery of system stability at " | |
453 | "this point.\n"); | |
454 | } | |
455 | ||
456 | netif_start_queue(dev); | |
457 | dlprintk((KERN_INFO MYNAM "/lo: Done.\n")); | |
458 | ||
459 | return 0; | |
460 | out_mpt_rxfidx: | |
461 | kfree(priv->mpt_rxfidx); | |
462 | priv->mpt_rxfidx = NULL; | |
463 | out_SendCtl: | |
464 | kfree(priv->SendCtl); | |
465 | priv->SendCtl = NULL; | |
466 | out_mpt_txfidx: | |
467 | kfree(priv->mpt_txfidx); | |
468 | priv->mpt_txfidx = NULL; | |
469 | out: return -ENOMEM; | |
470 | } | |
471 | ||
472 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
473 | /* Send a LanReset message to the FW. This should result in the FW returning | |
474 | any buckets it still has. */ | |
475 | static int | |
476 | mpt_lan_reset(struct net_device *dev) | |
477 | { | |
478 | MPT_FRAME_HDR *mf; | |
479 | LANResetRequest_t *pResetReq; | |
480 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
481 | ||
482 | mf = mpt_get_msg_frame(LanCtx, priv->mpt_dev); | |
483 | ||
484 | if (mf == NULL) { | |
485 | /* dlprintk((KERN_ERR MYNAM "/reset: Evil funkiness abounds! " | |
486 | "Unable to allocate a request frame.\n")); | |
487 | */ | |
488 | return -1; | |
489 | } | |
490 | ||
491 | pResetReq = (LANResetRequest_t *) mf; | |
492 | ||
493 | pResetReq->Function = MPI_FUNCTION_LAN_RESET; | |
494 | pResetReq->ChainOffset = 0; | |
495 | pResetReq->Reserved = 0; | |
496 | pResetReq->PortNumber = priv->pnum; | |
497 | pResetReq->MsgFlags = 0; | |
498 | pResetReq->Reserved2 = 0; | |
499 | ||
500 | mpt_put_msg_frame(LanCtx, priv->mpt_dev, mf); | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
505 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
506 | static int | |
507 | mpt_lan_close(struct net_device *dev) | |
508 | { | |
509 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
510 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
6521018d | 511 | unsigned long timeout; |
1da177e4 LT |
512 | int i; |
513 | ||
514 | dlprintk((KERN_INFO MYNAM ": mpt_lan_close called\n")); | |
515 | ||
516 | mpt_event_deregister(LanCtx); | |
517 | ||
518 | dlprintk((KERN_INFO MYNAM ":lan_close: Posted %d buckets " | |
519 | "since driver was loaded, %d still out\n", | |
520 | priv->total_posted,atomic_read(&priv->buckets_out))); | |
521 | ||
522 | netif_stop_queue(dev); | |
523 | ||
524 | mpt_lan_reset(dev); | |
525 | ||
6521018d NA |
526 | timeout = jiffies + 2 * HZ; |
527 | while (atomic_read(&priv->buckets_out) && time_before(jiffies, timeout)) | |
528 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
529 | |
530 | for (i = 0; i < priv->max_buckets_out; i++) { | |
531 | if (priv->RcvCtl[i].skb != NULL) { | |
532 | /**/ dlprintk((KERN_INFO MYNAM "/lan_close: bucket %05x " | |
533 | /**/ "is still out\n", i)); | |
534 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[i].dma, | |
535 | priv->RcvCtl[i].len, | |
536 | PCI_DMA_FROMDEVICE); | |
537 | dev_kfree_skb(priv->RcvCtl[i].skb); | |
538 | } | |
539 | } | |
540 | ||
d485eb83 MED |
541 | kfree(priv->RcvCtl); |
542 | kfree(priv->mpt_rxfidx); | |
1da177e4 LT |
543 | |
544 | for (i = 0; i < priv->tx_max_out; i++) { | |
545 | if (priv->SendCtl[i].skb != NULL) { | |
546 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[i].dma, | |
547 | priv->SendCtl[i].len, | |
548 | PCI_DMA_TODEVICE); | |
549 | dev_kfree_skb(priv->SendCtl[i].skb); | |
550 | } | |
551 | } | |
552 | ||
553 | kfree(priv->SendCtl); | |
554 | kfree(priv->mpt_txfidx); | |
555 | ||
556 | atomic_set(&priv->buckets_out, 0); | |
557 | ||
558 | printk(KERN_INFO MYNAM ": %s/%s: interface down & inactive\n", | |
559 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
565 | static struct net_device_stats * | |
566 | mpt_lan_get_stats(struct net_device *dev) | |
567 | { | |
568 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
569 | ||
570 | return (struct net_device_stats *) &priv->stats; | |
571 | } | |
572 | ||
573 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
574 | static int | |
575 | mpt_lan_change_mtu(struct net_device *dev, int new_mtu) | |
576 | { | |
577 | if ((new_mtu < MPT_LAN_MIN_MTU) || (new_mtu > MPT_LAN_MAX_MTU)) | |
578 | return -EINVAL; | |
579 | dev->mtu = new_mtu; | |
580 | return 0; | |
581 | } | |
582 | ||
583 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
584 | /* Tx timeout handler. */ | |
585 | static void | |
586 | mpt_lan_tx_timeout(struct net_device *dev) | |
587 | { | |
588 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
589 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
590 | ||
591 | if (mpt_dev->active) { | |
592 | dlprintk (("mptlan/tx_timeout: calling netif_wake_queue for %s.\n", dev->name)); | |
593 | netif_wake_queue(dev); | |
594 | } | |
595 | } | |
596 | ||
597 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
598 | //static inline int | |
599 | static int | |
600 | mpt_lan_send_turbo(struct net_device *dev, u32 tmsg) | |
601 | { | |
602 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
603 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
604 | struct sk_buff *sent; | |
605 | unsigned long flags; | |
606 | u32 ctx; | |
607 | ||
608 | ctx = GET_LAN_BUFFER_CONTEXT(tmsg); | |
609 | sent = priv->SendCtl[ctx].skb; | |
610 | ||
611 | priv->stats.tx_packets++; | |
612 | priv->stats.tx_bytes += sent->len; | |
613 | ||
614 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", | |
615 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
616 | __FUNCTION__, sent)); | |
617 | ||
618 | priv->SendCtl[ctx].skb = NULL; | |
619 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, | |
620 | priv->SendCtl[ctx].len, PCI_DMA_TODEVICE); | |
621 | dev_kfree_skb_irq(sent); | |
622 | ||
623 | spin_lock_irqsave(&priv->txfidx_lock, flags); | |
624 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = ctx; | |
625 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
626 | ||
627 | netif_wake_queue(dev); | |
628 | return 0; | |
629 | } | |
630 | ||
631 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
632 | static int | |
633 | mpt_lan_send_reply(struct net_device *dev, LANSendReply_t *pSendRep) | |
634 | { | |
635 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
636 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
637 | struct sk_buff *sent; | |
638 | unsigned long flags; | |
639 | int FreeReqFrame = 0; | |
640 | u32 *pContext; | |
641 | u32 ctx; | |
642 | u8 count; | |
643 | ||
644 | count = pSendRep->NumberOfContexts; | |
645 | ||
646 | dioprintk((KERN_INFO MYNAM ": send_reply: IOCStatus: %04x\n", | |
647 | le16_to_cpu(pSendRep->IOCStatus))); | |
648 | ||
649 | /* Add check for Loginfo Flag in IOCStatus */ | |
650 | ||
651 | switch (le16_to_cpu(pSendRep->IOCStatus) & MPI_IOCSTATUS_MASK) { | |
652 | case MPI_IOCSTATUS_SUCCESS: | |
653 | priv->stats.tx_packets += count; | |
654 | break; | |
655 | ||
656 | case MPI_IOCSTATUS_LAN_CANCELED: | |
657 | case MPI_IOCSTATUS_LAN_TRANSMIT_ABORTED: | |
658 | break; | |
659 | ||
660 | case MPI_IOCSTATUS_INVALID_SGL: | |
661 | priv->stats.tx_errors += count; | |
662 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Invalid SGL sent to IOC!\n", | |
663 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
664 | goto out; | |
665 | ||
666 | default: | |
667 | priv->stats.tx_errors += count; | |
668 | break; | |
669 | } | |
670 | ||
671 | pContext = &pSendRep->BufferContext; | |
672 | ||
673 | spin_lock_irqsave(&priv->txfidx_lock, flags); | |
674 | while (count > 0) { | |
675 | ctx = GET_LAN_BUFFER_CONTEXT(le32_to_cpu(*pContext)); | |
676 | ||
677 | sent = priv->SendCtl[ctx].skb; | |
678 | priv->stats.tx_bytes += sent->len; | |
679 | ||
680 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", | |
681 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
682 | __FUNCTION__, sent)); | |
683 | ||
684 | priv->SendCtl[ctx].skb = NULL; | |
685 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, | |
686 | priv->SendCtl[ctx].len, PCI_DMA_TODEVICE); | |
687 | dev_kfree_skb_irq(sent); | |
688 | ||
689 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = ctx; | |
690 | ||
691 | pContext++; | |
692 | count--; | |
693 | } | |
694 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
695 | ||
696 | out: | |
697 | if (!(pSendRep->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)) | |
698 | FreeReqFrame = 1; | |
699 | ||
700 | netif_wake_queue(dev); | |
701 | return FreeReqFrame; | |
702 | } | |
703 | ||
704 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
705 | static int | |
706 | mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev) | |
707 | { | |
708 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
709 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
710 | MPT_FRAME_HDR *mf; | |
711 | LANSendRequest_t *pSendReq; | |
712 | SGETransaction32_t *pTrans; | |
713 | SGESimple64_t *pSimple; | |
714 | dma_addr_t dma; | |
715 | unsigned long flags; | |
716 | int ctx; | |
717 | u16 cur_naa = 0x1000; | |
718 | ||
719 | dioprintk((KERN_INFO MYNAM ": %s called, skb_addr = %p\n", | |
720 | __FUNCTION__, skb)); | |
721 | ||
722 | spin_lock_irqsave(&priv->txfidx_lock, flags); | |
723 | if (priv->mpt_txfidx_tail < 0) { | |
724 | netif_stop_queue(dev); | |
725 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
726 | ||
727 | printk (KERN_ERR "%s: no tx context available: %u\n", | |
728 | __FUNCTION__, priv->mpt_txfidx_tail); | |
729 | return 1; | |
730 | } | |
731 | ||
732 | mf = mpt_get_msg_frame(LanCtx, mpt_dev); | |
733 | if (mf == NULL) { | |
734 | netif_stop_queue(dev); | |
735 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
736 | ||
737 | printk (KERN_ERR "%s: Unable to alloc request frame\n", | |
738 | __FUNCTION__); | |
739 | return 1; | |
740 | } | |
741 | ||
742 | ctx = priv->mpt_txfidx[priv->mpt_txfidx_tail--]; | |
743 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
744 | ||
745 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Creating new msg frame (send).\n", | |
746 | // IOC_AND_NETDEV_NAMES_s_s(dev))); | |
747 | ||
748 | pSendReq = (LANSendRequest_t *) mf; | |
749 | ||
750 | /* Set the mac.raw pointer, since this apparently isn't getting | |
751 | * done before we get the skb. Pull the data pointer past the mac data. | |
752 | */ | |
753 | skb->mac.raw = skb->data; | |
754 | skb_pull(skb, 12); | |
755 | ||
756 | dma = pci_map_single(mpt_dev->pcidev, skb->data, skb->len, | |
757 | PCI_DMA_TODEVICE); | |
758 | ||
759 | priv->SendCtl[ctx].skb = skb; | |
760 | priv->SendCtl[ctx].dma = dma; | |
761 | priv->SendCtl[ctx].len = skb->len; | |
762 | ||
763 | /* Message Header */ | |
764 | pSendReq->Reserved = 0; | |
765 | pSendReq->Function = MPI_FUNCTION_LAN_SEND; | |
766 | pSendReq->ChainOffset = 0; | |
767 | pSendReq->Reserved2 = 0; | |
768 | pSendReq->MsgFlags = 0; | |
769 | pSendReq->PortNumber = priv->pnum; | |
770 | ||
771 | /* Transaction Context Element */ | |
772 | pTrans = (SGETransaction32_t *) pSendReq->SG_List; | |
773 | ||
774 | /* No Flags, 8 bytes of Details, 32bit Context (bloody turbo replies) */ | |
775 | pTrans->ContextSize = sizeof(u32); | |
776 | pTrans->DetailsLength = 2 * sizeof(u32); | |
777 | pTrans->Flags = 0; | |
778 | pTrans->TransactionContext[0] = cpu_to_le32(ctx); | |
779 | ||
780 | // dioprintk((KERN_INFO MYNAM ": %s/%s: BC = %08x, skb = %p, buff = %p\n", | |
781 | // IOC_AND_NETDEV_NAMES_s_s(dev), | |
782 | // ctx, skb, skb->data)); | |
783 | ||
784 | #ifdef QLOGIC_NAA_WORKAROUND | |
785 | { | |
786 | struct NAA_Hosed *nh; | |
787 | ||
788 | /* Munge the NAA for Tx packets to QLogic boards, which don't follow | |
789 | RFC 2625. The longer I look at this, the more my opinion of Qlogic | |
790 | drops. */ | |
791 | read_lock_irq(&bad_naa_lock); | |
792 | for (nh = mpt_bad_naa; nh != NULL; nh=nh->next) { | |
793 | if ((nh->ieee[0] == skb->mac.raw[0]) && | |
794 | (nh->ieee[1] == skb->mac.raw[1]) && | |
795 | (nh->ieee[2] == skb->mac.raw[2]) && | |
796 | (nh->ieee[3] == skb->mac.raw[3]) && | |
797 | (nh->ieee[4] == skb->mac.raw[4]) && | |
798 | (nh->ieee[5] == skb->mac.raw[5])) { | |
799 | cur_naa = nh->NAA; | |
800 | dlprintk ((KERN_INFO "mptlan/sdu_send: using NAA value " | |
801 | "= %04x.\n", cur_naa)); | |
802 | break; | |
803 | } | |
804 | } | |
805 | read_unlock_irq(&bad_naa_lock); | |
806 | } | |
807 | #endif | |
808 | ||
809 | pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) | | |
810 | (skb->mac.raw[0] << 8) | | |
811 | (skb->mac.raw[1] << 0)); | |
812 | pTrans->TransactionDetails[1] = cpu_to_le32((skb->mac.raw[2] << 24) | | |
813 | (skb->mac.raw[3] << 16) | | |
814 | (skb->mac.raw[4] << 8) | | |
815 | (skb->mac.raw[5] << 0)); | |
816 | ||
817 | pSimple = (SGESimple64_t *) &pTrans->TransactionDetails[2]; | |
818 | ||
819 | /* If we ever decide to send more than one Simple SGE per LANSend, then | |
820 | we will need to make sure that LAST_ELEMENT only gets set on the | |
821 | last one. Otherwise, bad voodoo and evil funkiness will commence. */ | |
822 | pSimple->FlagsLength = cpu_to_le32( | |
823 | ((MPI_SGE_FLAGS_LAST_ELEMENT | | |
824 | MPI_SGE_FLAGS_END_OF_BUFFER | | |
825 | MPI_SGE_FLAGS_SIMPLE_ELEMENT | | |
826 | MPI_SGE_FLAGS_SYSTEM_ADDRESS | | |
827 | MPI_SGE_FLAGS_HOST_TO_IOC | | |
828 | MPI_SGE_FLAGS_64_BIT_ADDRESSING | | |
829 | MPI_SGE_FLAGS_END_OF_LIST) << MPI_SGE_FLAGS_SHIFT) | | |
830 | skb->len); | |
831 | pSimple->Address.Low = cpu_to_le32((u32) dma); | |
832 | if (sizeof(dma_addr_t) > sizeof(u32)) | |
833 | pSimple->Address.High = cpu_to_le32((u32) ((u64) dma >> 32)); | |
834 | else | |
835 | pSimple->Address.High = 0; | |
836 | ||
837 | mpt_put_msg_frame (LanCtx, mpt_dev, mf); | |
838 | dev->trans_start = jiffies; | |
839 | ||
840 | dioprintk((KERN_INFO MYNAM ": %s/%s: Sending packet. FlagsLength = %08x.\n", | |
841 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
842 | le32_to_cpu(pSimple->FlagsLength))); | |
843 | ||
844 | return 0; | |
845 | } | |
846 | ||
847 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
858119e1 | 848 | static void |
1da177e4 LT |
849 | mpt_lan_wake_post_buckets_task(struct net_device *dev, int priority) |
850 | /* | |
851 | * @priority: 0 = put it on the timer queue, 1 = put it on the immediate queue | |
852 | */ | |
853 | { | |
854 | struct mpt_lan_priv *priv = dev->priv; | |
855 | ||
856 | if (test_and_set_bit(0, &priv->post_buckets_active) == 0) { | |
857 | if (priority) { | |
c4028958 | 858 | schedule_delayed_work(&priv->post_buckets_task, 0); |
1da177e4 LT |
859 | } else { |
860 | schedule_delayed_work(&priv->post_buckets_task, 1); | |
861 | dioprintk((KERN_INFO MYNAM ": post_buckets queued on " | |
862 | "timer.\n")); | |
863 | } | |
864 | dioprintk((KERN_INFO MYNAM ": %s/%s: Queued post_buckets task.\n", | |
865 | IOC_AND_NETDEV_NAMES_s_s(dev) )); | |
866 | } | |
867 | } | |
868 | ||
869 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
858119e1 | 870 | static int |
1da177e4 LT |
871 | mpt_lan_receive_skb(struct net_device *dev, struct sk_buff *skb) |
872 | { | |
873 | struct mpt_lan_priv *priv = dev->priv; | |
874 | ||
875 | skb->protocol = mpt_lan_type_trans(skb, dev); | |
876 | ||
877 | dioprintk((KERN_INFO MYNAM ": %s/%s: Incoming packet (%d bytes) " | |
878 | "delivered to upper level.\n", | |
879 | IOC_AND_NETDEV_NAMES_s_s(dev), skb->len)); | |
880 | ||
881 | priv->stats.rx_bytes += skb->len; | |
882 | priv->stats.rx_packets++; | |
883 | ||
884 | skb->dev = dev; | |
885 | netif_rx(skb); | |
886 | ||
887 | dioprintk((MYNAM "/receive_skb: %d buckets remaining\n", | |
888 | atomic_read(&priv->buckets_out))); | |
889 | ||
890 | if (atomic_read(&priv->buckets_out) < priv->bucketthresh) | |
891 | mpt_lan_wake_post_buckets_task(dev, 1); | |
892 | ||
893 | dioprintk((KERN_INFO MYNAM "/receive_post_reply: %d buckets " | |
894 | "remaining, %d received back since sod\n", | |
895 | atomic_read(&priv->buckets_out), priv->total_received)); | |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
900 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
901 | //static inline int | |
902 | static int | |
903 | mpt_lan_receive_post_turbo(struct net_device *dev, u32 tmsg) | |
904 | { | |
905 | struct mpt_lan_priv *priv = dev->priv; | |
906 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
907 | struct sk_buff *skb, *old_skb; | |
908 | unsigned long flags; | |
909 | u32 ctx, len; | |
910 | ||
911 | ctx = GET_LAN_BUCKET_CONTEXT(tmsg); | |
912 | skb = priv->RcvCtl[ctx].skb; | |
913 | ||
914 | len = GET_LAN_PACKET_LENGTH(tmsg); | |
915 | ||
916 | if (len < MPT_LAN_RX_COPYBREAK) { | |
917 | old_skb = skb; | |
918 | ||
919 | skb = (struct sk_buff *)dev_alloc_skb(len); | |
920 | if (!skb) { | |
921 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", | |
922 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
923 | __FILE__, __LINE__); | |
924 | return -ENOMEM; | |
925 | } | |
926 | ||
927 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
928 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
929 | ||
930 | memcpy(skb_put(skb, len), old_skb->data, len); | |
931 | ||
932 | pci_dma_sync_single_for_device(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
933 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
934 | goto out; | |
935 | } | |
936 | ||
937 | skb_put(skb, len); | |
938 | ||
939 | priv->RcvCtl[ctx].skb = NULL; | |
940 | ||
941 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
942 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
943 | ||
944 | out: | |
945 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
946 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
947 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
948 | ||
949 | atomic_dec(&priv->buckets_out); | |
950 | priv->total_received++; | |
951 | ||
952 | return mpt_lan_receive_skb(dev, skb); | |
953 | } | |
954 | ||
955 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
956 | static int | |
957 | mpt_lan_receive_post_free(struct net_device *dev, | |
958 | LANReceivePostReply_t *pRecvRep) | |
959 | { | |
960 | struct mpt_lan_priv *priv = dev->priv; | |
961 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
962 | unsigned long flags; | |
963 | struct sk_buff *skb; | |
964 | u32 ctx; | |
965 | int count; | |
966 | int i; | |
967 | ||
968 | count = pRecvRep->NumberOfContexts; | |
969 | ||
970 | /**/ dlprintk((KERN_INFO MYNAM "/receive_post_reply: " | |
971 | "IOC returned %d buckets, freeing them...\n", count)); | |
972 | ||
973 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
974 | for (i = 0; i < count; i++) { | |
975 | ctx = le32_to_cpu(pRecvRep->BucketContext[i]); | |
976 | ||
977 | skb = priv->RcvCtl[ctx].skb; | |
978 | ||
979 | // dlprintk((KERN_INFO MYNAM ": %s: dev_name = %s\n", | |
980 | // IOC_AND_NETDEV_NAMES_s_s(dev))); | |
981 | // dlprintk((KERN_INFO MYNAM "@rpr[2], priv = %p, buckets_out addr = %p", | |
982 | // priv, &(priv->buckets_out))); | |
983 | // dlprintk((KERN_INFO MYNAM "@rpr[2] TC + 3\n")); | |
984 | ||
985 | priv->RcvCtl[ctx].skb = NULL; | |
986 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
987 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
988 | dev_kfree_skb_any(skb); | |
989 | ||
990 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
991 | } | |
992 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
993 | ||
994 | atomic_sub(count, &priv->buckets_out); | |
995 | ||
996 | // for (i = 0; i < priv->max_buckets_out; i++) | |
997 | // if (priv->RcvCtl[i].skb != NULL) | |
998 | // dlprintk((KERN_INFO MYNAM "@rpr: bucket %03x " | |
999 | // "is still out\n", i)); | |
1000 | ||
1001 | /* dlprintk((KERN_INFO MYNAM "/receive_post_reply: freed %d buckets\n", | |
1002 | count)); | |
1003 | */ | |
1004 | /**/ dlprintk((KERN_INFO MYNAM "@receive_post_reply: %d buckets " | |
1005 | /**/ "remaining, %d received back since sod.\n", | |
1006 | /**/ atomic_read(&priv->buckets_out), priv->total_received)); | |
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
1011 | static int | |
1012 | mpt_lan_receive_post_reply(struct net_device *dev, | |
1013 | LANReceivePostReply_t *pRecvRep) | |
1014 | { | |
1015 | struct mpt_lan_priv *priv = dev->priv; | |
1016 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
1017 | struct sk_buff *skb, *old_skb; | |
1018 | unsigned long flags; | |
1019 | u32 len, ctx, offset; | |
1020 | u32 remaining = le32_to_cpu(pRecvRep->BucketsRemaining); | |
1021 | int count; | |
1022 | int i, l; | |
1023 | ||
1024 | dioprintk((KERN_INFO MYNAM ": mpt_lan_receive_post_reply called\n")); | |
1025 | dioprintk((KERN_INFO MYNAM ": receive_post_reply: IOCStatus: %04x\n", | |
1026 | le16_to_cpu(pRecvRep->IOCStatus))); | |
1027 | ||
1028 | if ((le16_to_cpu(pRecvRep->IOCStatus) & MPI_IOCSTATUS_MASK) == | |
1029 | MPI_IOCSTATUS_LAN_CANCELED) | |
1030 | return mpt_lan_receive_post_free(dev, pRecvRep); | |
1031 | ||
1032 | len = le32_to_cpu(pRecvRep->PacketLength); | |
1033 | if (len == 0) { | |
1034 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Got a non-TURBO " | |
1035 | "ReceivePostReply w/ PacketLength zero!\n", | |
1036 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
1037 | printk (KERN_ERR MYNAM ": MsgFlags = %02x, IOCStatus = %04x\n", | |
1038 | pRecvRep->MsgFlags, le16_to_cpu(pRecvRep->IOCStatus)); | |
1039 | return -1; | |
1040 | } | |
1041 | ||
1042 | ctx = le32_to_cpu(pRecvRep->BucketContext[0]); | |
1043 | count = pRecvRep->NumberOfContexts; | |
1044 | skb = priv->RcvCtl[ctx].skb; | |
1045 | ||
1046 | offset = le32_to_cpu(pRecvRep->PacketOffset); | |
1047 | // if (offset != 0) { | |
1048 | // printk (KERN_INFO MYNAM ": %s/%s: Got a ReceivePostReply " | |
1049 | // "w/ PacketOffset %u\n", | |
1050 | // IOC_AND_NETDEV_NAMES_s_s(dev), | |
1051 | // offset); | |
1052 | // } | |
1053 | ||
1054 | dioprintk((KERN_INFO MYNAM ": %s/%s: @rpr, offset = %d, len = %d\n", | |
1055 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1056 | offset, len)); | |
1057 | ||
1058 | if (count > 1) { | |
1059 | int szrem = len; | |
1060 | ||
1061 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Multiple buckets returned " | |
1062 | // "for single packet, concatenating...\n", | |
1063 | // IOC_AND_NETDEV_NAMES_s_s(dev))); | |
1064 | ||
1065 | skb = (struct sk_buff *)dev_alloc_skb(len); | |
1066 | if (!skb) { | |
1067 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", | |
1068 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1069 | __FILE__, __LINE__); | |
1070 | return -ENOMEM; | |
1071 | } | |
1072 | ||
1073 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1074 | for (i = 0; i < count; i++) { | |
1075 | ||
1076 | ctx = le32_to_cpu(pRecvRep->BucketContext[i]); | |
1077 | old_skb = priv->RcvCtl[ctx].skb; | |
1078 | ||
1079 | l = priv->RcvCtl[ctx].len; | |
1080 | if (szrem < l) | |
1081 | l = szrem; | |
1082 | ||
1083 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Buckets = %d, len = %u\n", | |
1084 | // IOC_AND_NETDEV_NAMES_s_s(dev), | |
1085 | // i, l)); | |
1086 | ||
1087 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, | |
1088 | priv->RcvCtl[ctx].dma, | |
1089 | priv->RcvCtl[ctx].len, | |
1090 | PCI_DMA_FROMDEVICE); | |
1091 | memcpy(skb_put(skb, l), old_skb->data, l); | |
1092 | ||
1093 | pci_dma_sync_single_for_device(mpt_dev->pcidev, | |
1094 | priv->RcvCtl[ctx].dma, | |
1095 | priv->RcvCtl[ctx].len, | |
1096 | PCI_DMA_FROMDEVICE); | |
1097 | ||
1098 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
1099 | szrem -= l; | |
1100 | } | |
1101 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1102 | ||
1103 | } else if (len < MPT_LAN_RX_COPYBREAK) { | |
1104 | ||
1105 | old_skb = skb; | |
1106 | ||
1107 | skb = (struct sk_buff *)dev_alloc_skb(len); | |
1108 | if (!skb) { | |
1109 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", | |
1110 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1111 | __FILE__, __LINE__); | |
1112 | return -ENOMEM; | |
1113 | } | |
1114 | ||
1115 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, | |
1116 | priv->RcvCtl[ctx].dma, | |
1117 | priv->RcvCtl[ctx].len, | |
1118 | PCI_DMA_FROMDEVICE); | |
1119 | ||
1120 | memcpy(skb_put(skb, len), old_skb->data, len); | |
1121 | ||
1122 | pci_dma_sync_single_for_device(mpt_dev->pcidev, | |
1123 | priv->RcvCtl[ctx].dma, | |
1124 | priv->RcvCtl[ctx].len, | |
1125 | PCI_DMA_FROMDEVICE); | |
1126 | ||
1127 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1128 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
1129 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1130 | ||
1131 | } else { | |
1132 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1133 | ||
1134 | priv->RcvCtl[ctx].skb = NULL; | |
1135 | ||
1136 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
1137 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
1138 | priv->RcvCtl[ctx].dma = 0; | |
1139 | ||
1140 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
1141 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1142 | ||
1143 | skb_put(skb,len); | |
1144 | } | |
1145 | ||
1146 | atomic_sub(count, &priv->buckets_out); | |
1147 | priv->total_received += count; | |
1148 | ||
1149 | if (priv->mpt_rxfidx_tail >= MPT_LAN_MAX_BUCKETS_OUT) { | |
1150 | printk (KERN_ERR MYNAM ": %s/%s: Yoohoo! mpt_rxfidx_tail = %d, " | |
1151 | "MPT_LAN_MAX_BUCKETS_OUT = %d\n", | |
1152 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1153 | priv->mpt_rxfidx_tail, | |
1154 | MPT_LAN_MAX_BUCKETS_OUT); | |
1155 | ||
4f8d98ab | 1156 | return -1; |
1da177e4 LT |
1157 | } |
1158 | ||
1159 | if (remaining == 0) | |
1160 | printk (KERN_WARNING MYNAM ": %s/%s: WARNING - IOC out of buckets! " | |
1161 | "(priv->buckets_out = %d)\n", | |
1162 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1163 | atomic_read(&priv->buckets_out)); | |
1164 | else if (remaining < 10) | |
1165 | printk (KERN_INFO MYNAM ": %s/%s: IOC says %d buckets left. " | |
1166 | "(priv->buckets_out = %d)\n", | |
1167 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1168 | remaining, atomic_read(&priv->buckets_out)); | |
1169 | ||
1170 | if ((remaining < priv->bucketthresh) && | |
1171 | ((atomic_read(&priv->buckets_out) - remaining) > | |
1172 | MPT_LAN_BUCKETS_REMAIN_MISMATCH_THRESH)) { | |
1173 | ||
1174 | printk (KERN_WARNING MYNAM " Mismatch between driver's " | |
1175 | "buckets_out count and fw's BucketsRemaining " | |
1176 | "count has crossed the threshold, issuing a " | |
1177 | "LanReset to clear the fw's hashtable. You may " | |
1178 | "want to check your /var/log/messages for \"CRC " | |
1179 | "error\" event notifications.\n"); | |
1180 | ||
1181 | mpt_lan_reset(dev); | |
1182 | mpt_lan_wake_post_buckets_task(dev, 0); | |
1183 | } | |
1184 | ||
1185 | return mpt_lan_receive_skb(dev, skb); | |
1186 | } | |
1187 | ||
1188 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
1189 | /* Simple SGE's only at the moment */ | |
1190 | ||
1191 | static void | |
c4028958 | 1192 | mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) |
1da177e4 | 1193 | { |
c4028958 | 1194 | struct net_device *dev = priv->dev; |
1da177e4 LT |
1195 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
1196 | MPT_FRAME_HDR *mf; | |
1197 | LANReceivePostRequest_t *pRecvReq; | |
1198 | SGETransaction32_t *pTrans; | |
1199 | SGESimple64_t *pSimple; | |
1200 | struct sk_buff *skb; | |
1201 | dma_addr_t dma; | |
1202 | u32 curr, buckets, count, max; | |
1203 | u32 len = (dev->mtu + dev->hard_header_len + 4); | |
1204 | unsigned long flags; | |
1205 | int i; | |
1206 | ||
1207 | curr = atomic_read(&priv->buckets_out); | |
1208 | buckets = (priv->max_buckets_out - curr); | |
1209 | ||
1210 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, Start_buckets = %u, buckets_out = %u\n", | |
1211 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1212 | __FUNCTION__, buckets, curr)); | |
1213 | ||
1214 | max = (mpt_dev->req_sz - MPT_LAN_RECEIVE_POST_REQUEST_SIZE) / | |
1215 | (MPT_LAN_TRANSACTION32_SIZE + sizeof(SGESimple64_t)); | |
1216 | ||
1217 | while (buckets) { | |
1218 | mf = mpt_get_msg_frame(LanCtx, mpt_dev); | |
1219 | if (mf == NULL) { | |
1220 | printk (KERN_ERR "%s: Unable to alloc request frame\n", | |
1221 | __FUNCTION__); | |
1222 | dioprintk((KERN_ERR "%s: %u buckets remaining\n", | |
1223 | __FUNCTION__, buckets)); | |
1224 | goto out; | |
1225 | } | |
1226 | pRecvReq = (LANReceivePostRequest_t *) mf; | |
1227 | ||
1228 | count = buckets; | |
1229 | if (count > max) | |
1230 | count = max; | |
1231 | ||
1232 | pRecvReq->Function = MPI_FUNCTION_LAN_RECEIVE; | |
1233 | pRecvReq->ChainOffset = 0; | |
1234 | pRecvReq->MsgFlags = 0; | |
1235 | pRecvReq->PortNumber = priv->pnum; | |
1236 | ||
1237 | pTrans = (SGETransaction32_t *) pRecvReq->SG_List; | |
1238 | pSimple = NULL; | |
1239 | ||
1240 | for (i = 0; i < count; i++) { | |
1241 | int ctx; | |
1242 | ||
1243 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1244 | if (priv->mpt_rxfidx_tail < 0) { | |
1245 | printk (KERN_ERR "%s: Can't alloc context\n", | |
1246 | __FUNCTION__); | |
1247 | spin_unlock_irqrestore(&priv->rxfidx_lock, | |
1248 | flags); | |
1249 | break; | |
1250 | } | |
1251 | ||
1252 | ctx = priv->mpt_rxfidx[priv->mpt_rxfidx_tail--]; | |
1253 | ||
1254 | skb = priv->RcvCtl[ctx].skb; | |
1255 | if (skb && (priv->RcvCtl[ctx].len != len)) { | |
1256 | pci_unmap_single(mpt_dev->pcidev, | |
1257 | priv->RcvCtl[ctx].dma, | |
1258 | priv->RcvCtl[ctx].len, | |
1259 | PCI_DMA_FROMDEVICE); | |
1260 | dev_kfree_skb(priv->RcvCtl[ctx].skb); | |
1261 | skb = priv->RcvCtl[ctx].skb = NULL; | |
1262 | } | |
1263 | ||
1264 | if (skb == NULL) { | |
1265 | skb = dev_alloc_skb(len); | |
1266 | if (skb == NULL) { | |
1267 | printk (KERN_WARNING | |
1268 | MYNAM "/%s: Can't alloc skb\n", | |
1269 | __FUNCTION__); | |
1270 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
1271 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1272 | break; | |
1273 | } | |
1274 | ||
1275 | dma = pci_map_single(mpt_dev->pcidev, skb->data, | |
1276 | len, PCI_DMA_FROMDEVICE); | |
1277 | ||
1278 | priv->RcvCtl[ctx].skb = skb; | |
1279 | priv->RcvCtl[ctx].dma = dma; | |
1280 | priv->RcvCtl[ctx].len = len; | |
1281 | } | |
1282 | ||
1283 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1284 | ||
1285 | pTrans->ContextSize = sizeof(u32); | |
1286 | pTrans->DetailsLength = 0; | |
1287 | pTrans->Flags = 0; | |
1288 | pTrans->TransactionContext[0] = cpu_to_le32(ctx); | |
1289 | ||
1290 | pSimple = (SGESimple64_t *) pTrans->TransactionDetails; | |
1291 | ||
1292 | pSimple->FlagsLength = cpu_to_le32( | |
1293 | ((MPI_SGE_FLAGS_END_OF_BUFFER | | |
1294 | MPI_SGE_FLAGS_SIMPLE_ELEMENT | | |
1295 | MPI_SGE_FLAGS_64_BIT_ADDRESSING) << MPI_SGE_FLAGS_SHIFT) | len); | |
1296 | pSimple->Address.Low = cpu_to_le32((u32) priv->RcvCtl[ctx].dma); | |
1297 | if (sizeof(dma_addr_t) > sizeof(u32)) | |
1298 | pSimple->Address.High = cpu_to_le32((u32) ((u64) priv->RcvCtl[ctx].dma >> 32)); | |
1299 | else | |
1300 | pSimple->Address.High = 0; | |
1301 | ||
1302 | pTrans = (SGETransaction32_t *) (pSimple + 1); | |
1303 | } | |
1304 | ||
1305 | if (pSimple == NULL) { | |
1306 | /**/ printk (KERN_WARNING MYNAM "/%s: No buckets posted\n", | |
1307 | /**/ __FUNCTION__); | |
1308 | mpt_free_msg_frame(mpt_dev, mf); | |
1309 | goto out; | |
1310 | } | |
1311 | ||
1312 | pSimple->FlagsLength |= cpu_to_le32(MPI_SGE_FLAGS_END_OF_LIST << MPI_SGE_FLAGS_SHIFT); | |
1313 | ||
1314 | pRecvReq->BucketCount = cpu_to_le32(i); | |
1315 | ||
1316 | /* printk(KERN_INFO MYNAM ": posting buckets\n "); | |
1317 | * for (i = 0; i < j + 2; i ++) | |
1318 | * printk (" %08x", le32_to_cpu(msg[i])); | |
1319 | * printk ("\n"); | |
1320 | */ | |
1321 | ||
1322 | mpt_put_msg_frame(LanCtx, mpt_dev, mf); | |
1323 | ||
1324 | priv->total_posted += i; | |
1325 | buckets -= i; | |
1326 | atomic_add(i, &priv->buckets_out); | |
1327 | } | |
1328 | ||
1329 | out: | |
1330 | dioprintk((KERN_INFO MYNAM "/%s: End_buckets = %u, priv->buckets_out = %u\n", | |
1331 | __FUNCTION__, buckets, atomic_read(&priv->buckets_out))); | |
1332 | dioprintk((KERN_INFO MYNAM "/%s: Posted %u buckets and received %u back\n", | |
1333 | __FUNCTION__, priv->total_posted, priv->total_received)); | |
1334 | ||
1335 | clear_bit(0, &priv->post_buckets_active); | |
1336 | } | |
1337 | ||
c4028958 DH |
1338 | static void |
1339 | mpt_lan_post_receive_buckets_work(struct work_struct *work) | |
1340 | { | |
1341 | mpt_lan_post_receive_buckets(container_of(work, struct mpt_lan_priv, | |
1342 | post_buckets_task.work)); | |
1343 | } | |
1344 | ||
1da177e4 LT |
1345 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
1346 | static struct net_device * | |
1347 | mpt_register_lan_device (MPT_ADAPTER *mpt_dev, int pnum) | |
1348 | { | |
1349 | struct net_device *dev = alloc_fcdev(sizeof(struct mpt_lan_priv)); | |
1350 | struct mpt_lan_priv *priv = NULL; | |
1351 | u8 HWaddr[FC_ALEN], *a; | |
1352 | ||
1353 | if (!dev) | |
1354 | return NULL; | |
1355 | ||
1356 | dev->mtu = MPT_LAN_MTU; | |
1357 | ||
1358 | priv = netdev_priv(dev); | |
1359 | ||
c4028958 | 1360 | priv->dev = dev; |
1da177e4 LT |
1361 | priv->mpt_dev = mpt_dev; |
1362 | priv->pnum = pnum; | |
1363 | ||
c4028958 DH |
1364 | memset(&priv->post_buckets_task, 0, sizeof(priv->post_buckets_task)); |
1365 | INIT_DELAYED_WORK(&priv->post_buckets_task, | |
1366 | mpt_lan_post_receive_buckets_work); | |
1da177e4 LT |
1367 | priv->post_buckets_active = 0; |
1368 | ||
1369 | dlprintk((KERN_INFO MYNAM "@%d: bucketlen = %d\n", | |
1370 | __LINE__, dev->mtu + dev->hard_header_len + 4)); | |
1371 | ||
1372 | atomic_set(&priv->buckets_out, 0); | |
1373 | priv->total_posted = 0; | |
1374 | priv->total_received = 0; | |
1375 | priv->max_buckets_out = max_buckets_out; | |
1376 | if (mpt_dev->pfacts[0].MaxLanBuckets < max_buckets_out) | |
1377 | priv->max_buckets_out = mpt_dev->pfacts[0].MaxLanBuckets; | |
1378 | ||
1379 | dlprintk((KERN_INFO MYNAM "@%d: MaxLanBuckets=%d, max_buckets_out/priv=%d/%d\n", | |
1380 | __LINE__, | |
1381 | mpt_dev->pfacts[0].MaxLanBuckets, | |
1382 | max_buckets_out, | |
1383 | priv->max_buckets_out)); | |
1384 | ||
1385 | priv->bucketthresh = priv->max_buckets_out * 2 / 3; | |
1386 | spin_lock_init(&priv->txfidx_lock); | |
1387 | spin_lock_init(&priv->rxfidx_lock); | |
1388 | ||
1389 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
1390 | ||
1391 | /* Grab pre-fetched LANPage1 stuff. :-) */ | |
1392 | a = (u8 *) &mpt_dev->lan_cnfg_page1.HardwareAddressLow; | |
1393 | ||
1394 | HWaddr[0] = a[5]; | |
1395 | HWaddr[1] = a[4]; | |
1396 | HWaddr[2] = a[3]; | |
1397 | HWaddr[3] = a[2]; | |
1398 | HWaddr[4] = a[1]; | |
1399 | HWaddr[5] = a[0]; | |
1400 | ||
1401 | dev->addr_len = FC_ALEN; | |
1402 | memcpy(dev->dev_addr, HWaddr, FC_ALEN); | |
1403 | memset(dev->broadcast, 0xff, FC_ALEN); | |
1404 | ||
1405 | /* The Tx queue is 127 deep on the 909. | |
1406 | * Give ourselves some breathing room. | |
1407 | */ | |
1408 | priv->tx_max_out = (tx_max_out_p <= MPT_TX_MAX_OUT_LIM) ? | |
1409 | tx_max_out_p : MPT_TX_MAX_OUT_LIM; | |
1410 | ||
1411 | dev->open = mpt_lan_open; | |
1412 | dev->stop = mpt_lan_close; | |
1413 | dev->get_stats = mpt_lan_get_stats; | |
1414 | dev->set_multicast_list = NULL; | |
1415 | dev->change_mtu = mpt_lan_change_mtu; | |
1416 | dev->hard_start_xmit = mpt_lan_sdu_send; | |
1417 | ||
1418 | /* Not in 2.3.42. Need 2.3.45+ */ | |
1419 | dev->tx_timeout = mpt_lan_tx_timeout; | |
1420 | dev->watchdog_timeo = MPT_LAN_TX_TIMEOUT; | |
1421 | ||
1422 | dlprintk((KERN_INFO MYNAM ": Finished registering dev " | |
1423 | "and setting initial values\n")); | |
1424 | ||
1425 | SET_MODULE_OWNER(dev); | |
1426 | ||
1427 | if (register_netdev(dev) != 0) { | |
1428 | free_netdev(dev); | |
1429 | dev = NULL; | |
1430 | } | |
1431 | return dev; | |
1432 | } | |
1433 | ||
1434 | static int | |
1435 | mptlan_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
1436 | { | |
1437 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); | |
1438 | struct net_device *dev; | |
1439 | int i; | |
1440 | ||
1441 | for (i = 0; i < ioc->facts.NumberOfPorts; i++) { | |
1442 | printk(KERN_INFO MYNAM ": %s: PortNum=%x, " | |
1443 | "ProtocolFlags=%02Xh (%c%c%c%c)\n", | |
1444 | ioc->name, ioc->pfacts[i].PortNumber, | |
1445 | ioc->pfacts[i].ProtocolFlags, | |
1446 | MPT_PROTOCOL_FLAGS_c_c_c_c( | |
1447 | ioc->pfacts[i].ProtocolFlags)); | |
1448 | ||
1449 | if (!(ioc->pfacts[i].ProtocolFlags & | |
1450 | MPI_PORTFACTS_PROTOCOL_LAN)) { | |
1451 | printk(KERN_INFO MYNAM ": %s: Hmmm... LAN protocol " | |
1452 | "seems to be disabled on this adapter port!\n", | |
1453 | ioc->name); | |
1454 | continue; | |
1455 | } | |
1456 | ||
1457 | dev = mpt_register_lan_device(ioc, i); | |
1458 | if (!dev) { | |
1459 | printk(KERN_ERR MYNAM ": %s: Unable to register " | |
1460 | "port%d as a LAN device\n", ioc->name, | |
1461 | ioc->pfacts[i].PortNumber); | |
1462 | continue; | |
1463 | } | |
1464 | ||
1465 | printk(KERN_INFO MYNAM ": %s: Fusion MPT LAN device " | |
1466 | "registered as '%s'\n", ioc->name, dev->name); | |
1467 | printk(KERN_INFO MYNAM ": %s/%s: " | |
1468 | "LanAddr = %02X:%02X:%02X:%02X:%02X:%02X\n", | |
1469 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1470 | dev->dev_addr[0], dev->dev_addr[1], | |
1471 | dev->dev_addr[2], dev->dev_addr[3], | |
1472 | dev->dev_addr[4], dev->dev_addr[5]); | |
1473 | ||
1474 | ioc->netdev = dev; | |
1475 | ||
1476 | return 0; | |
1477 | } | |
1478 | ||
1479 | return -ENODEV; | |
1480 | } | |
1481 | ||
1482 | static void | |
1483 | mptlan_remove(struct pci_dev *pdev) | |
1484 | { | |
1485 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); | |
1486 | struct net_device *dev = ioc->netdev; | |
1487 | ||
1488 | if(dev != NULL) { | |
1489 | unregister_netdev(dev); | |
1490 | free_netdev(dev); | |
1491 | } | |
1492 | } | |
1493 | ||
1494 | static struct mpt_pci_driver mptlan_driver = { | |
1495 | .probe = mptlan_probe, | |
1496 | .remove = mptlan_remove, | |
1497 | }; | |
1498 | ||
1499 | static int __init mpt_lan_init (void) | |
1500 | { | |
1501 | show_mptmod_ver(LANAME, LANVER); | |
1502 | ||
1503 | if ((LanCtx = mpt_register(lan_reply, MPTLAN_DRIVER)) <= 0) { | |
1504 | printk (KERN_ERR MYNAM ": Failed to register with MPT base driver\n"); | |
1505 | return -EBUSY; | |
1506 | } | |
1507 | ||
1508 | /* Set the callback index to be used by driver core for turbo replies */ | |
1509 | mpt_lan_index = LanCtx; | |
1510 | ||
1511 | dlprintk((KERN_INFO MYNAM ": assigned context of %d\n", LanCtx)); | |
1512 | ||
1513 | if (mpt_reset_register(LanCtx, mpt_lan_ioc_reset)) { | |
1514 | printk(KERN_ERR MYNAM ": Eieee! unable to register a reset " | |
1515 | "handler with mptbase! The world is at an end! " | |
1516 | "Everything is fading to black! Goodbye.\n"); | |
1517 | return -EBUSY; | |
1518 | } | |
1519 | ||
1520 | dlprintk((KERN_INFO MYNAM ": Registered for IOC reset notifications\n")); | |
1521 | ||
1522 | if (mpt_device_driver_register(&mptlan_driver, MPTLAN_DRIVER)) | |
1523 | dprintk((KERN_INFO MYNAM ": failed to register dd callbacks\n")); | |
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | static void __exit mpt_lan_exit(void) | |
1528 | { | |
1529 | mpt_device_driver_deregister(MPTLAN_DRIVER); | |
1530 | mpt_reset_deregister(LanCtx); | |
1531 | ||
1532 | if (LanCtx >= 0) { | |
1533 | mpt_deregister(LanCtx); | |
1534 | LanCtx = -1; | |
1535 | mpt_lan_index = 0; | |
1536 | } | |
1537 | } | |
1538 | ||
1539 | module_init(mpt_lan_init); | |
1540 | module_exit(mpt_lan_exit); | |
1541 | ||
1542 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
1543 | static unsigned short | |
1544 | mpt_lan_type_trans(struct sk_buff *skb, struct net_device *dev) | |
1545 | { | |
1546 | struct mpt_lan_ohdr *fch = (struct mpt_lan_ohdr *)skb->data; | |
1547 | struct fcllc *fcllc; | |
1548 | ||
1549 | skb->mac.raw = skb->data; | |
1550 | skb_pull(skb, sizeof(struct mpt_lan_ohdr)); | |
1551 | ||
1552 | if (fch->dtype == htons(0xffff)) { | |
1553 | u32 *p = (u32 *) fch; | |
1554 | ||
1555 | swab32s(p + 0); | |
1556 | swab32s(p + 1); | |
1557 | swab32s(p + 2); | |
1558 | swab32s(p + 3); | |
1559 | ||
1560 | printk (KERN_WARNING MYNAM ": %s: WARNING - Broadcast swap F/W bug detected!\n", | |
1561 | NETDEV_PTR_TO_IOC_NAME_s(dev)); | |
1562 | printk (KERN_WARNING MYNAM ": Please update sender @ MAC_addr = %02x:%02x:%02x:%02x:%02x:%02x\n", | |
1563 | fch->saddr[0], fch->saddr[1], fch->saddr[2], | |
1564 | fch->saddr[3], fch->saddr[4], fch->saddr[5]); | |
1565 | } | |
1566 | ||
1567 | if (*fch->daddr & 1) { | |
1568 | if (!memcmp(fch->daddr, dev->broadcast, FC_ALEN)) { | |
1569 | skb->pkt_type = PACKET_BROADCAST; | |
1570 | } else { | |
1571 | skb->pkt_type = PACKET_MULTICAST; | |
1572 | } | |
1573 | } else { | |
1574 | if (memcmp(fch->daddr, dev->dev_addr, FC_ALEN)) { | |
1575 | skb->pkt_type = PACKET_OTHERHOST; | |
1576 | } else { | |
1577 | skb->pkt_type = PACKET_HOST; | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | fcllc = (struct fcllc *)skb->data; | |
1582 | ||
1583 | #ifdef QLOGIC_NAA_WORKAROUND | |
1584 | { | |
1585 | u16 source_naa = fch->stype, found = 0; | |
1586 | ||
1587 | /* Workaround for QLogic not following RFC 2625 in regards to the NAA | |
1588 | value. */ | |
1589 | ||
1590 | if ((source_naa & 0xF000) == 0) | |
1591 | source_naa = swab16(source_naa); | |
1592 | ||
1593 | if (fcllc->ethertype == htons(ETH_P_ARP)) | |
1594 | dlprintk ((KERN_INFO "mptlan/type_trans: got arp req/rep w/ naa of " | |
1595 | "%04x.\n", source_naa)); | |
1596 | ||
1597 | if ((fcllc->ethertype == htons(ETH_P_ARP)) && | |
1598 | ((source_naa >> 12) != MPT_LAN_NAA_RFC2625)){ | |
1599 | struct NAA_Hosed *nh, *prevnh; | |
1600 | int i; | |
1601 | ||
1602 | dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep from " | |
1603 | "system with non-RFC 2625 NAA value (%04x).\n", | |
1604 | source_naa)); | |
1605 | ||
1606 | write_lock_irq(&bad_naa_lock); | |
1607 | for (prevnh = nh = mpt_bad_naa; nh != NULL; | |
1608 | prevnh=nh, nh=nh->next) { | |
1609 | if ((nh->ieee[0] == fch->saddr[0]) && | |
1610 | (nh->ieee[1] == fch->saddr[1]) && | |
1611 | (nh->ieee[2] == fch->saddr[2]) && | |
1612 | (nh->ieee[3] == fch->saddr[3]) && | |
1613 | (nh->ieee[4] == fch->saddr[4]) && | |
1614 | (nh->ieee[5] == fch->saddr[5])) { | |
1615 | found = 1; | |
1616 | dlprintk ((KERN_INFO "mptlan/type_trans: ARP Re" | |
1617 | "q/Rep w/ bad NAA from system already" | |
1618 | " in DB.\n")); | |
1619 | break; | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | if ((!found) && (nh == NULL)) { | |
1624 | ||
1625 | nh = kmalloc(sizeof(struct NAA_Hosed), GFP_KERNEL); | |
1626 | dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep w/" | |
1627 | " bad NAA from system not yet in DB.\n")); | |
1628 | ||
1629 | if (nh != NULL) { | |
1630 | nh->next = NULL; | |
1631 | if (!mpt_bad_naa) | |
1632 | mpt_bad_naa = nh; | |
1633 | if (prevnh) | |
1634 | prevnh->next = nh; | |
1635 | ||
1636 | nh->NAA = source_naa; /* Set the S_NAA value. */ | |
1637 | for (i = 0; i < FC_ALEN; i++) | |
1638 | nh->ieee[i] = fch->saddr[i]; | |
1639 | dlprintk ((KERN_INFO "Got ARP from %02x:%02x:%02x:%02x:" | |
1640 | "%02x:%02x with non-compliant S_NAA value.\n", | |
1641 | fch->saddr[0], fch->saddr[1], fch->saddr[2], | |
1642 | fch->saddr[3], fch->saddr[4],fch->saddr[5])); | |
1643 | } else { | |
1644 | printk (KERN_ERR "mptlan/type_trans: Unable to" | |
1645 | " kmalloc a NAA_Hosed struct.\n"); | |
1646 | } | |
1647 | } else if (!found) { | |
1648 | printk (KERN_ERR "mptlan/type_trans: found not" | |
1649 | " set, but nh isn't null. Evil " | |
1650 | "funkiness abounds.\n"); | |
1651 | } | |
1652 | write_unlock_irq(&bad_naa_lock); | |
1653 | } | |
1654 | } | |
1655 | #endif | |
1656 | ||
1657 | /* Strip the SNAP header from ARP packets since we don't | |
1658 | * pass them through to the 802.2/SNAP layers. | |
1659 | */ | |
1660 | if (fcllc->dsap == EXTENDED_SAP && | |
1661 | (fcllc->ethertype == htons(ETH_P_IP) || | |
1662 | fcllc->ethertype == htons(ETH_P_ARP))) { | |
1663 | skb_pull(skb, sizeof(struct fcllc)); | |
1664 | return fcllc->ethertype; | |
1665 | } | |
1666 | ||
1667 | return htons(ETH_P_802_2); | |
1668 | } | |
1669 | ||
1670 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |