Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/drivers/message/fusion/mptlan.c | |
3 | * IP Over Fibre Channel device driver. | |
f36789e2 PS |
4 | * For use with LSI Fibre Channel PCI chip/adapters |
5 | * running LSI Fusion MPT (Message Passing Technology) firmware. | |
1da177e4 | 6 | * |
cddc0ab7 | 7 | * Copyright (c) 2000-2008 LSI Corporation |
16d20101 | 8 | * (mailto:DL-MPTFusionLinux@lsi.com) |
1da177e4 | 9 | * |
1da177e4 LT |
10 | */ |
11 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
12 | /* | |
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; version 2 of the License. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | NO WARRANTY | |
23 | THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR | |
24 | CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT | |
25 | LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, | |
26 | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is | |
27 | solely responsible for determining the appropriateness of using and | |
28 | distributing the Program and assumes all risks associated with its | |
29 | exercise of rights under this Agreement, including but not limited to | |
30 | the risks and costs of program errors, damage to or loss of data, | |
31 | programs or equipment, and unavailability or interruption of operations. | |
32 | ||
33 | DISCLAIMER OF LIABILITY | |
34 | NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY | |
35 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
36 | DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND | |
37 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
38 | TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | |
39 | USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED | |
40 | HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES | |
41 | ||
42 | You should have received a copy of the GNU General Public License | |
43 | along with this program; if not, write to the Free Software | |
44 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
45 | */ | |
46 | ||
47 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
48 | /* | |
49 | * Define statements used for debugging | |
50 | */ | |
51 | //#define MPT_LAN_IO_DEBUG | |
52 | ||
53 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
54 | ||
55 | #include "mptlan.h" | |
56 | #include <linux/init.h> | |
57 | #include <linux/module.h> | |
58 | #include <linux/fs.h> | |
d43c36dc | 59 | #include <linux/sched.h> |
1da177e4 | 60 | |
9f4203b3 | 61 | #define my_VERSION MPT_LINUX_VERSION_COMMON |
1da177e4 LT |
62 | #define MYNAM "mptlan" |
63 | ||
64 | MODULE_LICENSE("GPL"); | |
9f4203b3 | 65 | MODULE_VERSION(my_VERSION); |
1da177e4 LT |
66 | |
67 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
68 | /* | |
69 | * MPT LAN message sizes without variable part. | |
70 | */ | |
71 | #define MPT_LAN_RECEIVE_POST_REQUEST_SIZE \ | |
72 | (sizeof(LANReceivePostRequest_t) - sizeof(SGE_MPI_UNION)) | |
73 | ||
74 | #define MPT_LAN_TRANSACTION32_SIZE \ | |
75 | (sizeof(SGETransaction32_t) - sizeof(u32)) | |
76 | ||
77 | /* | |
78 | * Fusion MPT LAN private structures | |
79 | */ | |
80 | ||
1da177e4 LT |
81 | struct BufferControl { |
82 | struct sk_buff *skb; | |
83 | dma_addr_t dma; | |
84 | unsigned int len; | |
85 | }; | |
86 | ||
87 | struct mpt_lan_priv { | |
88 | MPT_ADAPTER *mpt_dev; | |
89 | u8 pnum; /* Port number in the IOC. This is not a Unix network port! */ | |
90 | ||
91 | atomic_t buckets_out; /* number of unused buckets on IOC */ | |
92 | int bucketthresh; /* Send more when this many left */ | |
93 | ||
94 | int *mpt_txfidx; /* Free Tx Context list */ | |
95 | int mpt_txfidx_tail; | |
96 | spinlock_t txfidx_lock; | |
97 | ||
98 | int *mpt_rxfidx; /* Free Rx Context list */ | |
99 | int mpt_rxfidx_tail; | |
100 | spinlock_t rxfidx_lock; | |
101 | ||
102 | struct BufferControl *RcvCtl; /* Receive BufferControl structs */ | |
103 | struct BufferControl *SendCtl; /* Send BufferControl structs */ | |
104 | ||
105 | int max_buckets_out; /* Max buckets to send to IOC */ | |
106 | int tx_max_out; /* IOC's Tx queue len */ | |
107 | ||
108 | u32 total_posted; | |
109 | u32 total_received; | |
1da177e4 | 110 | |
c4028958 DH |
111 | struct delayed_work post_buckets_task; |
112 | struct net_device *dev; | |
1da177e4 LT |
113 | unsigned long post_buckets_active; |
114 | }; | |
115 | ||
116 | struct mpt_lan_ohdr { | |
117 | u16 dtype; | |
118 | u8 daddr[FC_ALEN]; | |
119 | u16 stype; | |
120 | u8 saddr[FC_ALEN]; | |
121 | }; | |
122 | ||
123 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
124 | ||
125 | /* | |
126 | * Forward protos... | |
127 | */ | |
128 | static int lan_reply (MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, | |
129 | MPT_FRAME_HDR *reply); | |
130 | static int mpt_lan_open(struct net_device *dev); | |
131 | static int mpt_lan_reset(struct net_device *dev); | |
132 | static int mpt_lan_close(struct net_device *dev); | |
c4028958 | 133 | static void mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv); |
1da177e4 LT |
134 | static void mpt_lan_wake_post_buckets_task(struct net_device *dev, |
135 | int priority); | |
136 | static int mpt_lan_receive_post_turbo(struct net_device *dev, u32 tmsg); | |
137 | static int mpt_lan_receive_post_reply(struct net_device *dev, | |
138 | LANReceivePostReply_t *pRecvRep); | |
139 | static int mpt_lan_send_turbo(struct net_device *dev, u32 tmsg); | |
140 | static int mpt_lan_send_reply(struct net_device *dev, | |
141 | LANSendReply_t *pSendRep); | |
142 | static int mpt_lan_ioc_reset(MPT_ADAPTER *ioc, int reset_phase); | |
143 | static int mpt_lan_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); | |
144 | static unsigned short mpt_lan_type_trans(struct sk_buff *skb, | |
145 | struct net_device *dev); | |
146 | ||
147 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
148 | /* | |
149 | * Fusion MPT LAN private data | |
150 | */ | |
f606f571 | 151 | static u8 LanCtx = MPT_MAX_PROTOCOL_DRIVERS; |
1da177e4 LT |
152 | |
153 | static u32 max_buckets_out = 127; | |
154 | static u32 tx_max_out_p = 127 - 16; | |
155 | ||
1da177e4 LT |
156 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
157 | /** | |
158 | * lan_reply - Handle all data sent from the hardware. | |
159 | * @ioc: Pointer to MPT_ADAPTER structure | |
160 | * @mf: Pointer to original MPT request frame (NULL if TurboReply) | |
161 | * @reply: Pointer to MPT reply frame | |
162 | * | |
163 | * Returns 1 indicating original alloc'd request frame ptr | |
164 | * should be freed, or 0 if it shouldn't. | |
165 | */ | |
166 | static int | |
167 | lan_reply (MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *reply) | |
168 | { | |
169 | struct net_device *dev = ioc->netdev; | |
170 | int FreeReqFrame = 0; | |
171 | ||
172 | dioprintk((KERN_INFO MYNAM ": %s/%s: Got reply.\n", | |
173 | IOC_AND_NETDEV_NAMES_s_s(dev))); | |
174 | ||
175 | // dioprintk((KERN_INFO MYNAM "@lan_reply: mf = %p, reply = %p\n", | |
176 | // mf, reply)); | |
177 | ||
178 | if (mf == NULL) { | |
179 | u32 tmsg = CAST_PTR_TO_U32(reply); | |
180 | ||
181 | dioprintk((KERN_INFO MYNAM ": %s/%s: @lan_reply, tmsg %08x\n", | |
182 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
183 | tmsg)); | |
184 | ||
185 | switch (GET_LAN_FORM(tmsg)) { | |
186 | ||
187 | // NOTE! (Optimization) First case here is now caught in | |
188 | // mptbase.c::mpt_interrupt() routine and callcack here | |
748b77b1 | 189 | // is now skipped for this case! |
1da177e4 LT |
190 | #if 0 |
191 | case LAN_REPLY_FORM_MESSAGE_CONTEXT: | |
192 | // dioprintk((KERN_INFO MYNAM "/lan_reply: " | |
193 | // "MessageContext turbo reply received\n")); | |
194 | FreeReqFrame = 1; | |
195 | break; | |
196 | #endif | |
197 | ||
198 | case LAN_REPLY_FORM_SEND_SINGLE: | |
199 | // dioprintk((MYNAM "/lan_reply: " | |
200 | // "calling mpt_lan_send_reply (turbo)\n")); | |
201 | ||
748b77b1 | 202 | // Potential BUG here? |
1da177e4 LT |
203 | // FreeReqFrame = mpt_lan_send_turbo(dev, tmsg); |
204 | // If/when mpt_lan_send_turbo would return 1 here, | |
205 | // calling routine (mptbase.c|mpt_interrupt) | |
206 | // would Oops because mf has already been set | |
207 | // to NULL. So after return from this func, | |
208 | // mpt_interrupt() will attempt to put (NULL) mf ptr | |
209 | // item back onto its adapter FreeQ - Oops!:-( | |
210 | // It's Ok, since mpt_lan_send_turbo() *currently* | |
211 | // always returns 0, but..., just in case: | |
212 | ||
213 | (void) mpt_lan_send_turbo(dev, tmsg); | |
214 | FreeReqFrame = 0; | |
215 | ||
216 | break; | |
217 | ||
218 | case LAN_REPLY_FORM_RECEIVE_SINGLE: | |
219 | // dioprintk((KERN_INFO MYNAM "@lan_reply: " | |
220 | // "rcv-Turbo = %08x\n", tmsg)); | |
221 | mpt_lan_receive_post_turbo(dev, tmsg); | |
222 | break; | |
223 | ||
224 | default: | |
225 | printk (KERN_ERR MYNAM "/lan_reply: Got a turbo reply " | |
226 | "that I don't know what to do with\n"); | |
227 | ||
228 | /* CHECKME! Hmmm... FreeReqFrame is 0 here; is that right? */ | |
229 | ||
230 | break; | |
231 | } | |
232 | ||
233 | return FreeReqFrame; | |
234 | } | |
235 | ||
236 | // msg = (u32 *) reply; | |
237 | // dioprintk((KERN_INFO MYNAM "@lan_reply: msg = %08x %08x %08x %08x\n", | |
238 | // le32_to_cpu(msg[0]), le32_to_cpu(msg[1]), | |
239 | // le32_to_cpu(msg[2]), le32_to_cpu(msg[3]))); | |
240 | // dioprintk((KERN_INFO MYNAM "@lan_reply: Function = %02xh\n", | |
241 | // reply->u.hdr.Function)); | |
242 | ||
243 | switch (reply->u.hdr.Function) { | |
244 | ||
245 | case MPI_FUNCTION_LAN_SEND: | |
246 | { | |
247 | LANSendReply_t *pSendRep; | |
248 | ||
249 | pSendRep = (LANSendReply_t *) reply; | |
250 | FreeReqFrame = mpt_lan_send_reply(dev, pSendRep); | |
251 | break; | |
252 | } | |
253 | ||
254 | case MPI_FUNCTION_LAN_RECEIVE: | |
255 | { | |
256 | LANReceivePostReply_t *pRecvRep; | |
257 | ||
258 | pRecvRep = (LANReceivePostReply_t *) reply; | |
259 | if (pRecvRep->NumberOfContexts) { | |
260 | mpt_lan_receive_post_reply(dev, pRecvRep); | |
261 | if (!(pRecvRep->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)) | |
262 | FreeReqFrame = 1; | |
263 | } else | |
264 | dioprintk((KERN_INFO MYNAM "@lan_reply: zero context " | |
265 | "ReceivePostReply received.\n")); | |
266 | break; | |
267 | } | |
268 | ||
269 | case MPI_FUNCTION_LAN_RESET: | |
270 | /* Just a default reply. Might want to check it to | |
271 | * make sure that everything went ok. | |
272 | */ | |
273 | FreeReqFrame = 1; | |
274 | break; | |
275 | ||
276 | case MPI_FUNCTION_EVENT_NOTIFICATION: | |
277 | case MPI_FUNCTION_EVENT_ACK: | |
748b77b1 | 278 | /* _EVENT_NOTIFICATION should NOT come down this path any more. |
1da177e4 LT |
279 | * Should be routed to mpt_lan_event_process(), but just in case... |
280 | */ | |
281 | FreeReqFrame = 1; | |
282 | break; | |
283 | ||
284 | default: | |
285 | printk (KERN_ERR MYNAM "/lan_reply: Got a non-turbo " | |
286 | "reply that I don't know what to do with\n"); | |
287 | ||
288 | /* CHECKME! Hmmm... FreeReqFrame is 0 here; is that right? */ | |
289 | FreeReqFrame = 1; | |
290 | ||
291 | break; | |
292 | } | |
293 | ||
294 | return FreeReqFrame; | |
295 | } | |
296 | ||
297 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
298 | static int | |
299 | mpt_lan_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) | |
300 | { | |
301 | struct net_device *dev = ioc->netdev; | |
466544d8 MED |
302 | struct mpt_lan_priv *priv; |
303 | ||
304 | if (dev == NULL) | |
305 | return(1); | |
306 | else | |
307 | priv = netdev_priv(dev); | |
1da177e4 LT |
308 | |
309 | dlprintk((KERN_INFO MYNAM ": IOC %s_reset routed to LAN driver!\n", | |
310 | reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( | |
311 | reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); | |
312 | ||
313 | if (priv->mpt_rxfidx == NULL) | |
314 | return (1); | |
315 | ||
316 | if (reset_phase == MPT_IOC_SETUP_RESET) { | |
317 | ; | |
318 | } else if (reset_phase == MPT_IOC_PRE_RESET) { | |
319 | int i; | |
320 | unsigned long flags; | |
321 | ||
322 | netif_stop_queue(dev); | |
323 | ||
324 | dlprintk ((KERN_INFO "mptlan/ioc_reset: called netif_stop_queue for %s.\n", dev->name)); | |
325 | ||
326 | atomic_set(&priv->buckets_out, 0); | |
327 | ||
328 | /* Reset Rx Free Tail index and re-populate the queue. */ | |
329 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
330 | priv->mpt_rxfidx_tail = -1; | |
331 | for (i = 0; i < priv->max_buckets_out; i++) | |
332 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = i; | |
333 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
334 | } else { | |
c4028958 | 335 | mpt_lan_post_receive_buckets(priv); |
1da177e4 LT |
336 | netif_wake_queue(dev); |
337 | } | |
338 | ||
339 | return 1; | |
340 | } | |
341 | ||
342 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
343 | static int | |
344 | mpt_lan_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) | |
345 | { | |
346 | dlprintk((KERN_INFO MYNAM ": MPT event routed to LAN driver!\n")); | |
347 | ||
348 | switch (le32_to_cpu(pEvReply->Event)) { | |
349 | case MPI_EVENT_NONE: /* 00 */ | |
350 | case MPI_EVENT_LOG_DATA: /* 01 */ | |
351 | case MPI_EVENT_STATE_CHANGE: /* 02 */ | |
352 | case MPI_EVENT_UNIT_ATTENTION: /* 03 */ | |
353 | case MPI_EVENT_IOC_BUS_RESET: /* 04 */ | |
354 | case MPI_EVENT_EXT_BUS_RESET: /* 05 */ | |
355 | case MPI_EVENT_RESCAN: /* 06 */ | |
356 | /* Ok, do we need to do anything here? As far as | |
357 | I can tell, this is when a new device gets added | |
358 | to the loop. */ | |
359 | case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */ | |
360 | case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */ | |
361 | case MPI_EVENT_LOGOUT: /* 09 */ | |
362 | case MPI_EVENT_EVENT_CHANGE: /* 0A */ | |
363 | default: | |
364 | break; | |
365 | } | |
366 | ||
367 | /* | |
368 | * NOTE: pEvent->AckRequired handling now done in mptbase.c; | |
369 | * Do NOT do it here now! | |
370 | */ | |
371 | ||
372 | return 1; | |
373 | } | |
374 | ||
375 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
376 | static int | |
377 | mpt_lan_open(struct net_device *dev) | |
378 | { | |
379 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
380 | int i; | |
381 | ||
382 | if (mpt_lan_reset(dev) != 0) { | |
383 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
384 | ||
385 | printk (KERN_WARNING MYNAM "/lan_open: lan_reset failed."); | |
386 | ||
387 | if (mpt_dev->active) | |
388 | printk ("The ioc is active. Perhaps it needs to be" | |
389 | " reset?\n"); | |
390 | else | |
391 | printk ("The ioc in inactive, most likely in the " | |
392 | "process of being reset. Please try again in " | |
393 | "a moment.\n"); | |
394 | } | |
395 | ||
396 | priv->mpt_txfidx = kmalloc(priv->tx_max_out * sizeof(int), GFP_KERNEL); | |
397 | if (priv->mpt_txfidx == NULL) | |
398 | goto out; | |
399 | priv->mpt_txfidx_tail = -1; | |
400 | ||
1ca00bb7 | 401 | priv->SendCtl = kcalloc(priv->tx_max_out, sizeof(struct BufferControl), |
1da177e4 LT |
402 | GFP_KERNEL); |
403 | if (priv->SendCtl == NULL) | |
404 | goto out_mpt_txfidx; | |
1ca00bb7 | 405 | for (i = 0; i < priv->tx_max_out; i++) |
1da177e4 | 406 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = i; |
1da177e4 LT |
407 | |
408 | dlprintk((KERN_INFO MYNAM "@lo: Finished initializing SendCtl\n")); | |
409 | ||
410 | priv->mpt_rxfidx = kmalloc(priv->max_buckets_out * sizeof(int), | |
411 | GFP_KERNEL); | |
412 | if (priv->mpt_rxfidx == NULL) | |
413 | goto out_SendCtl; | |
414 | priv->mpt_rxfidx_tail = -1; | |
415 | ||
1ca00bb7 CH |
416 | priv->RcvCtl = kcalloc(priv->max_buckets_out, |
417 | sizeof(struct BufferControl), | |
1da177e4 LT |
418 | GFP_KERNEL); |
419 | if (priv->RcvCtl == NULL) | |
420 | goto out_mpt_rxfidx; | |
1ca00bb7 | 421 | for (i = 0; i < priv->max_buckets_out; i++) |
1da177e4 | 422 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = i; |
1da177e4 LT |
423 | |
424 | /**/ dlprintk((KERN_INFO MYNAM "/lo: txfidx contains - ")); | |
425 | /**/ for (i = 0; i < priv->tx_max_out; i++) | |
426 | /**/ dlprintk((" %xh", priv->mpt_txfidx[i])); | |
427 | /**/ dlprintk(("\n")); | |
428 | ||
429 | dlprintk((KERN_INFO MYNAM "/lo: Finished initializing RcvCtl\n")); | |
430 | ||
c4028958 | 431 | mpt_lan_post_receive_buckets(priv); |
1da177e4 LT |
432 | printk(KERN_INFO MYNAM ": %s/%s: interface up & active\n", |
433 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
434 | ||
435 | if (mpt_event_register(LanCtx, mpt_lan_event_process) != 0) { | |
436 | printk (KERN_WARNING MYNAM "/lo: Unable to register for Event" | |
437 | " Notifications. This is a bad thing! We're not going " | |
438 | "to go ahead, but I'd be leery of system stability at " | |
439 | "this point.\n"); | |
440 | } | |
441 | ||
442 | netif_start_queue(dev); | |
443 | dlprintk((KERN_INFO MYNAM "/lo: Done.\n")); | |
444 | ||
445 | return 0; | |
446 | out_mpt_rxfidx: | |
447 | kfree(priv->mpt_rxfidx); | |
448 | priv->mpt_rxfidx = NULL; | |
449 | out_SendCtl: | |
450 | kfree(priv->SendCtl); | |
451 | priv->SendCtl = NULL; | |
452 | out_mpt_txfidx: | |
453 | kfree(priv->mpt_txfidx); | |
454 | priv->mpt_txfidx = NULL; | |
455 | out: return -ENOMEM; | |
456 | } | |
457 | ||
458 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
459 | /* Send a LanReset message to the FW. This should result in the FW returning | |
460 | any buckets it still has. */ | |
461 | static int | |
462 | mpt_lan_reset(struct net_device *dev) | |
463 | { | |
464 | MPT_FRAME_HDR *mf; | |
465 | LANResetRequest_t *pResetReq; | |
466 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
467 | ||
468 | mf = mpt_get_msg_frame(LanCtx, priv->mpt_dev); | |
469 | ||
470 | if (mf == NULL) { | |
471 | /* dlprintk((KERN_ERR MYNAM "/reset: Evil funkiness abounds! " | |
472 | "Unable to allocate a request frame.\n")); | |
473 | */ | |
474 | return -1; | |
475 | } | |
476 | ||
477 | pResetReq = (LANResetRequest_t *) mf; | |
478 | ||
479 | pResetReq->Function = MPI_FUNCTION_LAN_RESET; | |
480 | pResetReq->ChainOffset = 0; | |
481 | pResetReq->Reserved = 0; | |
482 | pResetReq->PortNumber = priv->pnum; | |
483 | pResetReq->MsgFlags = 0; | |
484 | pResetReq->Reserved2 = 0; | |
485 | ||
486 | mpt_put_msg_frame(LanCtx, priv->mpt_dev, mf); | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
492 | static int | |
493 | mpt_lan_close(struct net_device *dev) | |
494 | { | |
495 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
496 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
6521018d | 497 | unsigned long timeout; |
1da177e4 LT |
498 | int i; |
499 | ||
500 | dlprintk((KERN_INFO MYNAM ": mpt_lan_close called\n")); | |
501 | ||
502 | mpt_event_deregister(LanCtx); | |
503 | ||
504 | dlprintk((KERN_INFO MYNAM ":lan_close: Posted %d buckets " | |
505 | "since driver was loaded, %d still out\n", | |
506 | priv->total_posted,atomic_read(&priv->buckets_out))); | |
507 | ||
508 | netif_stop_queue(dev); | |
509 | ||
510 | mpt_lan_reset(dev); | |
511 | ||
6521018d NA |
512 | timeout = jiffies + 2 * HZ; |
513 | while (atomic_read(&priv->buckets_out) && time_before(jiffies, timeout)) | |
514 | schedule_timeout_interruptible(1); | |
1da177e4 LT |
515 | |
516 | for (i = 0; i < priv->max_buckets_out; i++) { | |
517 | if (priv->RcvCtl[i].skb != NULL) { | |
518 | /**/ dlprintk((KERN_INFO MYNAM "/lan_close: bucket %05x " | |
519 | /**/ "is still out\n", i)); | |
520 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[i].dma, | |
521 | priv->RcvCtl[i].len, | |
522 | PCI_DMA_FROMDEVICE); | |
523 | dev_kfree_skb(priv->RcvCtl[i].skb); | |
524 | } | |
525 | } | |
526 | ||
d485eb83 MED |
527 | kfree(priv->RcvCtl); |
528 | kfree(priv->mpt_rxfidx); | |
1da177e4 LT |
529 | |
530 | for (i = 0; i < priv->tx_max_out; i++) { | |
531 | if (priv->SendCtl[i].skb != NULL) { | |
532 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[i].dma, | |
533 | priv->SendCtl[i].len, | |
534 | PCI_DMA_TODEVICE); | |
535 | dev_kfree_skb(priv->SendCtl[i].skb); | |
536 | } | |
537 | } | |
538 | ||
539 | kfree(priv->SendCtl); | |
540 | kfree(priv->mpt_txfidx); | |
541 | ||
542 | atomic_set(&priv->buckets_out, 0); | |
543 | ||
544 | printk(KERN_INFO MYNAM ": %s/%s: interface down & inactive\n", | |
545 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
1da177e4 LT |
550 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
551 | static int | |
552 | mpt_lan_change_mtu(struct net_device *dev, int new_mtu) | |
553 | { | |
554 | if ((new_mtu < MPT_LAN_MIN_MTU) || (new_mtu > MPT_LAN_MAX_MTU)) | |
555 | return -EINVAL; | |
556 | dev->mtu = new_mtu; | |
557 | return 0; | |
558 | } | |
559 | ||
560 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
561 | /* Tx timeout handler. */ | |
562 | static void | |
563 | mpt_lan_tx_timeout(struct net_device *dev) | |
564 | { | |
565 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
566 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
567 | ||
568 | if (mpt_dev->active) { | |
569 | dlprintk (("mptlan/tx_timeout: calling netif_wake_queue for %s.\n", dev->name)); | |
570 | netif_wake_queue(dev); | |
571 | } | |
572 | } | |
573 | ||
574 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
575 | //static inline int | |
576 | static int | |
577 | mpt_lan_send_turbo(struct net_device *dev, u32 tmsg) | |
578 | { | |
579 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
580 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
581 | struct sk_buff *sent; | |
582 | unsigned long flags; | |
583 | u32 ctx; | |
584 | ||
585 | ctx = GET_LAN_BUFFER_CONTEXT(tmsg); | |
586 | sent = priv->SendCtl[ctx].skb; | |
587 | ||
4805fc76 SH |
588 | dev->stats.tx_packets++; |
589 | dev->stats.tx_bytes += sent->len; | |
1da177e4 LT |
590 | |
591 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", | |
592 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
cadbd4a5 | 593 | __func__, sent)); |
1da177e4 LT |
594 | |
595 | priv->SendCtl[ctx].skb = NULL; | |
596 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, | |
597 | priv->SendCtl[ctx].len, PCI_DMA_TODEVICE); | |
598 | dev_kfree_skb_irq(sent); | |
599 | ||
600 | spin_lock_irqsave(&priv->txfidx_lock, flags); | |
601 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = ctx; | |
602 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
603 | ||
604 | netif_wake_queue(dev); | |
605 | return 0; | |
606 | } | |
607 | ||
608 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
609 | static int | |
610 | mpt_lan_send_reply(struct net_device *dev, LANSendReply_t *pSendRep) | |
611 | { | |
612 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
613 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
614 | struct sk_buff *sent; | |
615 | unsigned long flags; | |
616 | int FreeReqFrame = 0; | |
617 | u32 *pContext; | |
618 | u32 ctx; | |
619 | u8 count; | |
620 | ||
621 | count = pSendRep->NumberOfContexts; | |
622 | ||
623 | dioprintk((KERN_INFO MYNAM ": send_reply: IOCStatus: %04x\n", | |
624 | le16_to_cpu(pSendRep->IOCStatus))); | |
625 | ||
626 | /* Add check for Loginfo Flag in IOCStatus */ | |
627 | ||
628 | switch (le16_to_cpu(pSendRep->IOCStatus) & MPI_IOCSTATUS_MASK) { | |
629 | case MPI_IOCSTATUS_SUCCESS: | |
4805fc76 | 630 | dev->stats.tx_packets += count; |
1da177e4 LT |
631 | break; |
632 | ||
633 | case MPI_IOCSTATUS_LAN_CANCELED: | |
634 | case MPI_IOCSTATUS_LAN_TRANSMIT_ABORTED: | |
635 | break; | |
636 | ||
637 | case MPI_IOCSTATUS_INVALID_SGL: | |
4805fc76 | 638 | dev->stats.tx_errors += count; |
1da177e4 LT |
639 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Invalid SGL sent to IOC!\n", |
640 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
641 | goto out; | |
642 | ||
643 | default: | |
4805fc76 | 644 | dev->stats.tx_errors += count; |
1da177e4 LT |
645 | break; |
646 | } | |
647 | ||
648 | pContext = &pSendRep->BufferContext; | |
649 | ||
650 | spin_lock_irqsave(&priv->txfidx_lock, flags); | |
651 | while (count > 0) { | |
652 | ctx = GET_LAN_BUFFER_CONTEXT(le32_to_cpu(*pContext)); | |
653 | ||
654 | sent = priv->SendCtl[ctx].skb; | |
4805fc76 | 655 | dev->stats.tx_bytes += sent->len; |
1da177e4 LT |
656 | |
657 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", | |
658 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
cadbd4a5 | 659 | __func__, sent)); |
1da177e4 LT |
660 | |
661 | priv->SendCtl[ctx].skb = NULL; | |
662 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, | |
663 | priv->SendCtl[ctx].len, PCI_DMA_TODEVICE); | |
664 | dev_kfree_skb_irq(sent); | |
665 | ||
666 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = ctx; | |
667 | ||
668 | pContext++; | |
669 | count--; | |
670 | } | |
671 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
672 | ||
673 | out: | |
674 | if (!(pSendRep->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)) | |
675 | FreeReqFrame = 1; | |
676 | ||
677 | netif_wake_queue(dev); | |
678 | return FreeReqFrame; | |
679 | } | |
680 | ||
681 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
682 | static int | |
683 | mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev) | |
684 | { | |
685 | struct mpt_lan_priv *priv = netdev_priv(dev); | |
686 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; | |
687 | MPT_FRAME_HDR *mf; | |
688 | LANSendRequest_t *pSendReq; | |
689 | SGETransaction32_t *pTrans; | |
690 | SGESimple64_t *pSimple; | |
98e399f8 | 691 | const unsigned char *mac; |
1da177e4 LT |
692 | dma_addr_t dma; |
693 | unsigned long flags; | |
694 | int ctx; | |
695 | u16 cur_naa = 0x1000; | |
696 | ||
697 | dioprintk((KERN_INFO MYNAM ": %s called, skb_addr = %p\n", | |
cadbd4a5 | 698 | __func__, skb)); |
1da177e4 LT |
699 | |
700 | spin_lock_irqsave(&priv->txfidx_lock, flags); | |
701 | if (priv->mpt_txfidx_tail < 0) { | |
702 | netif_stop_queue(dev); | |
703 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
704 | ||
705 | printk (KERN_ERR "%s: no tx context available: %u\n", | |
cadbd4a5 | 706 | __func__, priv->mpt_txfidx_tail); |
5b548140 | 707 | return NETDEV_TX_BUSY; |
1da177e4 LT |
708 | } |
709 | ||
710 | mf = mpt_get_msg_frame(LanCtx, mpt_dev); | |
711 | if (mf == NULL) { | |
712 | netif_stop_queue(dev); | |
713 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
714 | ||
715 | printk (KERN_ERR "%s: Unable to alloc request frame\n", | |
cadbd4a5 | 716 | __func__); |
5b548140 | 717 | return NETDEV_TX_BUSY; |
1da177e4 LT |
718 | } |
719 | ||
720 | ctx = priv->mpt_txfidx[priv->mpt_txfidx_tail--]; | |
721 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); | |
722 | ||
723 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Creating new msg frame (send).\n", | |
724 | // IOC_AND_NETDEV_NAMES_s_s(dev))); | |
725 | ||
726 | pSendReq = (LANSendRequest_t *) mf; | |
727 | ||
728 | /* Set the mac.raw pointer, since this apparently isn't getting | |
729 | * done before we get the skb. Pull the data pointer past the mac data. | |
730 | */ | |
459a98ed | 731 | skb_reset_mac_header(skb); |
1da177e4 LT |
732 | skb_pull(skb, 12); |
733 | ||
734 | dma = pci_map_single(mpt_dev->pcidev, skb->data, skb->len, | |
735 | PCI_DMA_TODEVICE); | |
736 | ||
737 | priv->SendCtl[ctx].skb = skb; | |
738 | priv->SendCtl[ctx].dma = dma; | |
739 | priv->SendCtl[ctx].len = skb->len; | |
740 | ||
741 | /* Message Header */ | |
742 | pSendReq->Reserved = 0; | |
743 | pSendReq->Function = MPI_FUNCTION_LAN_SEND; | |
744 | pSendReq->ChainOffset = 0; | |
745 | pSendReq->Reserved2 = 0; | |
746 | pSendReq->MsgFlags = 0; | |
747 | pSendReq->PortNumber = priv->pnum; | |
748 | ||
749 | /* Transaction Context Element */ | |
750 | pTrans = (SGETransaction32_t *) pSendReq->SG_List; | |
751 | ||
752 | /* No Flags, 8 bytes of Details, 32bit Context (bloody turbo replies) */ | |
753 | pTrans->ContextSize = sizeof(u32); | |
754 | pTrans->DetailsLength = 2 * sizeof(u32); | |
755 | pTrans->Flags = 0; | |
756 | pTrans->TransactionContext[0] = cpu_to_le32(ctx); | |
757 | ||
758 | // dioprintk((KERN_INFO MYNAM ": %s/%s: BC = %08x, skb = %p, buff = %p\n", | |
759 | // IOC_AND_NETDEV_NAMES_s_s(dev), | |
760 | // ctx, skb, skb->data)); | |
761 | ||
98e399f8 | 762 | mac = skb_mac_header(skb); |
1da177e4 LT |
763 | |
764 | pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) | | |
98e399f8 ACM |
765 | (mac[0] << 8) | |
766 | (mac[1] << 0)); | |
767 | pTrans->TransactionDetails[1] = cpu_to_le32((mac[2] << 24) | | |
768 | (mac[3] << 16) | | |
769 | (mac[4] << 8) | | |
770 | (mac[5] << 0)); | |
1da177e4 LT |
771 | |
772 | pSimple = (SGESimple64_t *) &pTrans->TransactionDetails[2]; | |
773 | ||
774 | /* If we ever decide to send more than one Simple SGE per LANSend, then | |
775 | we will need to make sure that LAST_ELEMENT only gets set on the | |
776 | last one. Otherwise, bad voodoo and evil funkiness will commence. */ | |
777 | pSimple->FlagsLength = cpu_to_le32( | |
778 | ((MPI_SGE_FLAGS_LAST_ELEMENT | | |
779 | MPI_SGE_FLAGS_END_OF_BUFFER | | |
780 | MPI_SGE_FLAGS_SIMPLE_ELEMENT | | |
781 | MPI_SGE_FLAGS_SYSTEM_ADDRESS | | |
782 | MPI_SGE_FLAGS_HOST_TO_IOC | | |
783 | MPI_SGE_FLAGS_64_BIT_ADDRESSING | | |
784 | MPI_SGE_FLAGS_END_OF_LIST) << MPI_SGE_FLAGS_SHIFT) | | |
785 | skb->len); | |
786 | pSimple->Address.Low = cpu_to_le32((u32) dma); | |
787 | if (sizeof(dma_addr_t) > sizeof(u32)) | |
788 | pSimple->Address.High = cpu_to_le32((u32) ((u64) dma >> 32)); | |
789 | else | |
790 | pSimple->Address.High = 0; | |
791 | ||
792 | mpt_put_msg_frame (LanCtx, mpt_dev, mf); | |
793 | dev->trans_start = jiffies; | |
794 | ||
795 | dioprintk((KERN_INFO MYNAM ": %s/%s: Sending packet. FlagsLength = %08x.\n", | |
796 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
797 | le32_to_cpu(pSimple->FlagsLength))); | |
798 | ||
6ed10654 | 799 | return NETDEV_TX_OK; |
1da177e4 LT |
800 | } |
801 | ||
802 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
858119e1 | 803 | static void |
1da177e4 LT |
804 | mpt_lan_wake_post_buckets_task(struct net_device *dev, int priority) |
805 | /* | |
806 | * @priority: 0 = put it on the timer queue, 1 = put it on the immediate queue | |
807 | */ | |
808 | { | |
97341249 | 809 | struct mpt_lan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
810 | |
811 | if (test_and_set_bit(0, &priv->post_buckets_active) == 0) { | |
812 | if (priority) { | |
c4028958 | 813 | schedule_delayed_work(&priv->post_buckets_task, 0); |
1da177e4 LT |
814 | } else { |
815 | schedule_delayed_work(&priv->post_buckets_task, 1); | |
816 | dioprintk((KERN_INFO MYNAM ": post_buckets queued on " | |
817 | "timer.\n")); | |
818 | } | |
819 | dioprintk((KERN_INFO MYNAM ": %s/%s: Queued post_buckets task.\n", | |
820 | IOC_AND_NETDEV_NAMES_s_s(dev) )); | |
821 | } | |
822 | } | |
823 | ||
824 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
858119e1 | 825 | static int |
1da177e4 LT |
826 | mpt_lan_receive_skb(struct net_device *dev, struct sk_buff *skb) |
827 | { | |
97341249 | 828 | struct mpt_lan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
829 | |
830 | skb->protocol = mpt_lan_type_trans(skb, dev); | |
831 | ||
832 | dioprintk((KERN_INFO MYNAM ": %s/%s: Incoming packet (%d bytes) " | |
833 | "delivered to upper level.\n", | |
834 | IOC_AND_NETDEV_NAMES_s_s(dev), skb->len)); | |
835 | ||
4805fc76 SH |
836 | dev->stats.rx_bytes += skb->len; |
837 | dev->stats.rx_packets++; | |
1da177e4 LT |
838 | |
839 | skb->dev = dev; | |
840 | netif_rx(skb); | |
841 | ||
842 | dioprintk((MYNAM "/receive_skb: %d buckets remaining\n", | |
843 | atomic_read(&priv->buckets_out))); | |
844 | ||
845 | if (atomic_read(&priv->buckets_out) < priv->bucketthresh) | |
846 | mpt_lan_wake_post_buckets_task(dev, 1); | |
847 | ||
848 | dioprintk((KERN_INFO MYNAM "/receive_post_reply: %d buckets " | |
849 | "remaining, %d received back since sod\n", | |
850 | atomic_read(&priv->buckets_out), priv->total_received)); | |
851 | ||
852 | return 0; | |
853 | } | |
854 | ||
855 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
856 | //static inline int | |
857 | static int | |
858 | mpt_lan_receive_post_turbo(struct net_device *dev, u32 tmsg) | |
859 | { | |
97341249 | 860 | struct mpt_lan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
861 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
862 | struct sk_buff *skb, *old_skb; | |
863 | unsigned long flags; | |
864 | u32 ctx, len; | |
865 | ||
866 | ctx = GET_LAN_BUCKET_CONTEXT(tmsg); | |
867 | skb = priv->RcvCtl[ctx].skb; | |
868 | ||
869 | len = GET_LAN_PACKET_LENGTH(tmsg); | |
870 | ||
871 | if (len < MPT_LAN_RX_COPYBREAK) { | |
872 | old_skb = skb; | |
873 | ||
874 | skb = (struct sk_buff *)dev_alloc_skb(len); | |
875 | if (!skb) { | |
876 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", | |
877 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
878 | __FILE__, __LINE__); | |
879 | return -ENOMEM; | |
880 | } | |
881 | ||
882 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
883 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
884 | ||
d626f62b | 885 | skb_copy_from_linear_data(old_skb, skb_put(skb, len), len); |
1da177e4 LT |
886 | |
887 | pci_dma_sync_single_for_device(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
888 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
889 | goto out; | |
890 | } | |
891 | ||
892 | skb_put(skb, len); | |
893 | ||
894 | priv->RcvCtl[ctx].skb = NULL; | |
895 | ||
896 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
897 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
898 | ||
899 | out: | |
900 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
901 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
902 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
903 | ||
904 | atomic_dec(&priv->buckets_out); | |
905 | priv->total_received++; | |
906 | ||
907 | return mpt_lan_receive_skb(dev, skb); | |
908 | } | |
909 | ||
910 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
911 | static int | |
912 | mpt_lan_receive_post_free(struct net_device *dev, | |
913 | LANReceivePostReply_t *pRecvRep) | |
914 | { | |
97341249 | 915 | struct mpt_lan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
916 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
917 | unsigned long flags; | |
918 | struct sk_buff *skb; | |
919 | u32 ctx; | |
920 | int count; | |
921 | int i; | |
922 | ||
923 | count = pRecvRep->NumberOfContexts; | |
924 | ||
925 | /**/ dlprintk((KERN_INFO MYNAM "/receive_post_reply: " | |
926 | "IOC returned %d buckets, freeing them...\n", count)); | |
927 | ||
928 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
929 | for (i = 0; i < count; i++) { | |
930 | ctx = le32_to_cpu(pRecvRep->BucketContext[i]); | |
931 | ||
932 | skb = priv->RcvCtl[ctx].skb; | |
933 | ||
934 | // dlprintk((KERN_INFO MYNAM ": %s: dev_name = %s\n", | |
935 | // IOC_AND_NETDEV_NAMES_s_s(dev))); | |
936 | // dlprintk((KERN_INFO MYNAM "@rpr[2], priv = %p, buckets_out addr = %p", | |
937 | // priv, &(priv->buckets_out))); | |
938 | // dlprintk((KERN_INFO MYNAM "@rpr[2] TC + 3\n")); | |
939 | ||
940 | priv->RcvCtl[ctx].skb = NULL; | |
941 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
942 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
943 | dev_kfree_skb_any(skb); | |
944 | ||
945 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
946 | } | |
947 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
948 | ||
949 | atomic_sub(count, &priv->buckets_out); | |
950 | ||
951 | // for (i = 0; i < priv->max_buckets_out; i++) | |
952 | // if (priv->RcvCtl[i].skb != NULL) | |
953 | // dlprintk((KERN_INFO MYNAM "@rpr: bucket %03x " | |
954 | // "is still out\n", i)); | |
955 | ||
956 | /* dlprintk((KERN_INFO MYNAM "/receive_post_reply: freed %d buckets\n", | |
957 | count)); | |
958 | */ | |
959 | /**/ dlprintk((KERN_INFO MYNAM "@receive_post_reply: %d buckets " | |
960 | /**/ "remaining, %d received back since sod.\n", | |
961 | /**/ atomic_read(&priv->buckets_out), priv->total_received)); | |
962 | return 0; | |
963 | } | |
964 | ||
965 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
966 | static int | |
967 | mpt_lan_receive_post_reply(struct net_device *dev, | |
968 | LANReceivePostReply_t *pRecvRep) | |
969 | { | |
97341249 | 970 | struct mpt_lan_priv *priv = netdev_priv(dev); |
1da177e4 LT |
971 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
972 | struct sk_buff *skb, *old_skb; | |
973 | unsigned long flags; | |
974 | u32 len, ctx, offset; | |
975 | u32 remaining = le32_to_cpu(pRecvRep->BucketsRemaining); | |
976 | int count; | |
977 | int i, l; | |
978 | ||
979 | dioprintk((KERN_INFO MYNAM ": mpt_lan_receive_post_reply called\n")); | |
980 | dioprintk((KERN_INFO MYNAM ": receive_post_reply: IOCStatus: %04x\n", | |
981 | le16_to_cpu(pRecvRep->IOCStatus))); | |
982 | ||
983 | if ((le16_to_cpu(pRecvRep->IOCStatus) & MPI_IOCSTATUS_MASK) == | |
984 | MPI_IOCSTATUS_LAN_CANCELED) | |
985 | return mpt_lan_receive_post_free(dev, pRecvRep); | |
986 | ||
987 | len = le32_to_cpu(pRecvRep->PacketLength); | |
988 | if (len == 0) { | |
989 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Got a non-TURBO " | |
990 | "ReceivePostReply w/ PacketLength zero!\n", | |
991 | IOC_AND_NETDEV_NAMES_s_s(dev)); | |
992 | printk (KERN_ERR MYNAM ": MsgFlags = %02x, IOCStatus = %04x\n", | |
993 | pRecvRep->MsgFlags, le16_to_cpu(pRecvRep->IOCStatus)); | |
994 | return -1; | |
995 | } | |
996 | ||
997 | ctx = le32_to_cpu(pRecvRep->BucketContext[0]); | |
998 | count = pRecvRep->NumberOfContexts; | |
999 | skb = priv->RcvCtl[ctx].skb; | |
1000 | ||
1001 | offset = le32_to_cpu(pRecvRep->PacketOffset); | |
1002 | // if (offset != 0) { | |
1003 | // printk (KERN_INFO MYNAM ": %s/%s: Got a ReceivePostReply " | |
1004 | // "w/ PacketOffset %u\n", | |
1005 | // IOC_AND_NETDEV_NAMES_s_s(dev), | |
1006 | // offset); | |
1007 | // } | |
1008 | ||
1009 | dioprintk((KERN_INFO MYNAM ": %s/%s: @rpr, offset = %d, len = %d\n", | |
1010 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1011 | offset, len)); | |
1012 | ||
1013 | if (count > 1) { | |
1014 | int szrem = len; | |
1015 | ||
1016 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Multiple buckets returned " | |
1017 | // "for single packet, concatenating...\n", | |
1018 | // IOC_AND_NETDEV_NAMES_s_s(dev))); | |
1019 | ||
1020 | skb = (struct sk_buff *)dev_alloc_skb(len); | |
1021 | if (!skb) { | |
1022 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", | |
1023 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1024 | __FILE__, __LINE__); | |
1025 | return -ENOMEM; | |
1026 | } | |
1027 | ||
1028 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1029 | for (i = 0; i < count; i++) { | |
1030 | ||
1031 | ctx = le32_to_cpu(pRecvRep->BucketContext[i]); | |
1032 | old_skb = priv->RcvCtl[ctx].skb; | |
1033 | ||
1034 | l = priv->RcvCtl[ctx].len; | |
1035 | if (szrem < l) | |
1036 | l = szrem; | |
1037 | ||
1038 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Buckets = %d, len = %u\n", | |
1039 | // IOC_AND_NETDEV_NAMES_s_s(dev), | |
1040 | // i, l)); | |
1041 | ||
1042 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, | |
1043 | priv->RcvCtl[ctx].dma, | |
1044 | priv->RcvCtl[ctx].len, | |
1045 | PCI_DMA_FROMDEVICE); | |
d626f62b | 1046 | skb_copy_from_linear_data(old_skb, skb_put(skb, l), l); |
1da177e4 LT |
1047 | |
1048 | pci_dma_sync_single_for_device(mpt_dev->pcidev, | |
1049 | priv->RcvCtl[ctx].dma, | |
1050 | priv->RcvCtl[ctx].len, | |
1051 | PCI_DMA_FROMDEVICE); | |
1052 | ||
1053 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
1054 | szrem -= l; | |
1055 | } | |
1056 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1057 | ||
1058 | } else if (len < MPT_LAN_RX_COPYBREAK) { | |
1059 | ||
1060 | old_skb = skb; | |
1061 | ||
1062 | skb = (struct sk_buff *)dev_alloc_skb(len); | |
1063 | if (!skb) { | |
1064 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", | |
1065 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1066 | __FILE__, __LINE__); | |
1067 | return -ENOMEM; | |
1068 | } | |
1069 | ||
1070 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, | |
1071 | priv->RcvCtl[ctx].dma, | |
1072 | priv->RcvCtl[ctx].len, | |
1073 | PCI_DMA_FROMDEVICE); | |
1074 | ||
d626f62b | 1075 | skb_copy_from_linear_data(old_skb, skb_put(skb, len), len); |
1da177e4 LT |
1076 | |
1077 | pci_dma_sync_single_for_device(mpt_dev->pcidev, | |
1078 | priv->RcvCtl[ctx].dma, | |
1079 | priv->RcvCtl[ctx].len, | |
1080 | PCI_DMA_FROMDEVICE); | |
1081 | ||
1082 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1083 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
1084 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1085 | ||
1086 | } else { | |
1087 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1088 | ||
1089 | priv->RcvCtl[ctx].skb = NULL; | |
1090 | ||
1091 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, | |
1092 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); | |
1093 | priv->RcvCtl[ctx].dma = 0; | |
1094 | ||
1095 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; | |
1096 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1097 | ||
1098 | skb_put(skb,len); | |
1099 | } | |
1100 | ||
1101 | atomic_sub(count, &priv->buckets_out); | |
1102 | priv->total_received += count; | |
1103 | ||
1104 | if (priv->mpt_rxfidx_tail >= MPT_LAN_MAX_BUCKETS_OUT) { | |
1105 | printk (KERN_ERR MYNAM ": %s/%s: Yoohoo! mpt_rxfidx_tail = %d, " | |
1106 | "MPT_LAN_MAX_BUCKETS_OUT = %d\n", | |
1107 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1108 | priv->mpt_rxfidx_tail, | |
1109 | MPT_LAN_MAX_BUCKETS_OUT); | |
1110 | ||
4f8d98ab | 1111 | return -1; |
1da177e4 LT |
1112 | } |
1113 | ||
1114 | if (remaining == 0) | |
1115 | printk (KERN_WARNING MYNAM ": %s/%s: WARNING - IOC out of buckets! " | |
1116 | "(priv->buckets_out = %d)\n", | |
1117 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1118 | atomic_read(&priv->buckets_out)); | |
1119 | else if (remaining < 10) | |
1120 | printk (KERN_INFO MYNAM ": %s/%s: IOC says %d buckets left. " | |
1121 | "(priv->buckets_out = %d)\n", | |
1122 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
1123 | remaining, atomic_read(&priv->buckets_out)); | |
1124 | ||
1125 | if ((remaining < priv->bucketthresh) && | |
1126 | ((atomic_read(&priv->buckets_out) - remaining) > | |
1127 | MPT_LAN_BUCKETS_REMAIN_MISMATCH_THRESH)) { | |
1128 | ||
1129 | printk (KERN_WARNING MYNAM " Mismatch between driver's " | |
1130 | "buckets_out count and fw's BucketsRemaining " | |
1131 | "count has crossed the threshold, issuing a " | |
1132 | "LanReset to clear the fw's hashtable. You may " | |
1133 | "want to check your /var/log/messages for \"CRC " | |
1134 | "error\" event notifications.\n"); | |
1135 | ||
1136 | mpt_lan_reset(dev); | |
1137 | mpt_lan_wake_post_buckets_task(dev, 0); | |
1138 | } | |
1139 | ||
1140 | return mpt_lan_receive_skb(dev, skb); | |
1141 | } | |
1142 | ||
1143 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
1144 | /* Simple SGE's only at the moment */ | |
1145 | ||
1146 | static void | |
c4028958 | 1147 | mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) |
1da177e4 | 1148 | { |
c4028958 | 1149 | struct net_device *dev = priv->dev; |
1da177e4 LT |
1150 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
1151 | MPT_FRAME_HDR *mf; | |
1152 | LANReceivePostRequest_t *pRecvReq; | |
1153 | SGETransaction32_t *pTrans; | |
1154 | SGESimple64_t *pSimple; | |
1155 | struct sk_buff *skb; | |
1156 | dma_addr_t dma; | |
1157 | u32 curr, buckets, count, max; | |
1158 | u32 len = (dev->mtu + dev->hard_header_len + 4); | |
1159 | unsigned long flags; | |
1160 | int i; | |
1161 | ||
1162 | curr = atomic_read(&priv->buckets_out); | |
1163 | buckets = (priv->max_buckets_out - curr); | |
1164 | ||
1165 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, Start_buckets = %u, buckets_out = %u\n", | |
1166 | IOC_AND_NETDEV_NAMES_s_s(dev), | |
cadbd4a5 | 1167 | __func__, buckets, curr)); |
1da177e4 LT |
1168 | |
1169 | max = (mpt_dev->req_sz - MPT_LAN_RECEIVE_POST_REQUEST_SIZE) / | |
1170 | (MPT_LAN_TRANSACTION32_SIZE + sizeof(SGESimple64_t)); | |
1171 | ||
1172 | while (buckets) { | |
1173 | mf = mpt_get_msg_frame(LanCtx, mpt_dev); | |
1174 | if (mf == NULL) { | |
1175 | printk (KERN_ERR "%s: Unable to alloc request frame\n", | |
cadbd4a5 | 1176 | __func__); |
1da177e4 | 1177 | dioprintk((KERN_ERR "%s: %u buckets remaining\n", |
cadbd4a5 | 1178 | __func__, buckets)); |
1da177e4 LT |
1179 | goto out; |
1180 | } | |
1181 | pRecvReq = (LANReceivePostRequest_t *) mf; | |
1182 | ||
e1fc2b51 EM |
1183 | i = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); |
1184 | mpt_dev->RequestNB[i] = 0; | |
1da177e4 LT |
1185 | count = buckets; |
1186 | if (count > max) | |
1187 | count = max; | |
1188 | ||
1189 | pRecvReq->Function = MPI_FUNCTION_LAN_RECEIVE; | |
1190 | pRecvReq->ChainOffset = 0; | |
1191 | pRecvReq->MsgFlags = 0; | |
1192 | pRecvReq->PortNumber = priv->pnum; | |
1193 | ||
1194 | pTrans = (SGETransaction32_t *) pRecvReq->SG_List; | |
1195 | pSimple = NULL; | |
1196 | ||
1197 | for (i = 0; i < count; i++) { | |
1198 | int ctx; | |
1199 | ||
1200 | spin_lock_irqsave(&priv->rxfidx_lock, flags); | |
1201 | if (priv->mpt_rxfidx_tail < 0) { | |
1202 | printk (KERN_ERR "%s: Can't alloc context\n", | |
cadbd4a5 | 1203 | __func__); |
1da177e4 LT |
1204 | spin_unlock_irqrestore(&priv->rxfidx_lock, |
1205 | flags); | |
1206 | break; | |
1207 | } | |
1208 | ||
1209 | ctx = priv->mpt_rxfidx[priv->mpt_rxfidx_tail--]; | |
1210 | ||
1211 | skb = priv->RcvCtl[ctx].skb; | |
1212 | if (skb && (priv->RcvCtl[ctx].len != len)) { | |
1213 | pci_unmap_single(mpt_dev->pcidev, | |
1214 | priv->RcvCtl[ctx].dma, | |
1215 | priv->RcvCtl[ctx].len, | |
1216 | PCI_DMA_FROMDEVICE); | |
1217 | dev_kfree_skb(priv->RcvCtl[ctx].skb); | |
1218 | skb = priv->RcvCtl[ctx].skb = NULL; | |
1219 | } | |
1220 | ||
1221 | if (skb == NULL) { | |
1222 | skb = dev_alloc_skb(len); | |
1223 | if (skb == NULL) { | |
1224 | printk (KERN_WARNING | |
1225 | MYNAM "/%s: Can't alloc skb\n", | |
cadbd4a5 | 1226 | __func__); |
1da177e4 LT |
1227 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; |
1228 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1229 | break; | |
1230 | } | |
1231 | ||
1232 | dma = pci_map_single(mpt_dev->pcidev, skb->data, | |
1233 | len, PCI_DMA_FROMDEVICE); | |
1234 | ||
1235 | priv->RcvCtl[ctx].skb = skb; | |
1236 | priv->RcvCtl[ctx].dma = dma; | |
1237 | priv->RcvCtl[ctx].len = len; | |
1238 | } | |
1239 | ||
1240 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); | |
1241 | ||
1242 | pTrans->ContextSize = sizeof(u32); | |
1243 | pTrans->DetailsLength = 0; | |
1244 | pTrans->Flags = 0; | |
1245 | pTrans->TransactionContext[0] = cpu_to_le32(ctx); | |
1246 | ||
1247 | pSimple = (SGESimple64_t *) pTrans->TransactionDetails; | |
1248 | ||
1249 | pSimple->FlagsLength = cpu_to_le32( | |
1250 | ((MPI_SGE_FLAGS_END_OF_BUFFER | | |
1251 | MPI_SGE_FLAGS_SIMPLE_ELEMENT | | |
1252 | MPI_SGE_FLAGS_64_BIT_ADDRESSING) << MPI_SGE_FLAGS_SHIFT) | len); | |
1253 | pSimple->Address.Low = cpu_to_le32((u32) priv->RcvCtl[ctx].dma); | |
1254 | if (sizeof(dma_addr_t) > sizeof(u32)) | |
1255 | pSimple->Address.High = cpu_to_le32((u32) ((u64) priv->RcvCtl[ctx].dma >> 32)); | |
1256 | else | |
1257 | pSimple->Address.High = 0; | |
1258 | ||
1259 | pTrans = (SGETransaction32_t *) (pSimple + 1); | |
1260 | } | |
1261 | ||
1262 | if (pSimple == NULL) { | |
1263 | /**/ printk (KERN_WARNING MYNAM "/%s: No buckets posted\n", | |
cadbd4a5 | 1264 | /**/ __func__); |
1da177e4 LT |
1265 | mpt_free_msg_frame(mpt_dev, mf); |
1266 | goto out; | |
1267 | } | |
1268 | ||
1269 | pSimple->FlagsLength |= cpu_to_le32(MPI_SGE_FLAGS_END_OF_LIST << MPI_SGE_FLAGS_SHIFT); | |
1270 | ||
1271 | pRecvReq->BucketCount = cpu_to_le32(i); | |
1272 | ||
1273 | /* printk(KERN_INFO MYNAM ": posting buckets\n "); | |
1274 | * for (i = 0; i < j + 2; i ++) | |
1275 | * printk (" %08x", le32_to_cpu(msg[i])); | |
1276 | * printk ("\n"); | |
1277 | */ | |
1278 | ||
1279 | mpt_put_msg_frame(LanCtx, mpt_dev, mf); | |
1280 | ||
1281 | priv->total_posted += i; | |
1282 | buckets -= i; | |
1283 | atomic_add(i, &priv->buckets_out); | |
1284 | } | |
1285 | ||
1286 | out: | |
1287 | dioprintk((KERN_INFO MYNAM "/%s: End_buckets = %u, priv->buckets_out = %u\n", | |
cadbd4a5 | 1288 | __func__, buckets, atomic_read(&priv->buckets_out))); |
1da177e4 | 1289 | dioprintk((KERN_INFO MYNAM "/%s: Posted %u buckets and received %u back\n", |
cadbd4a5 | 1290 | __func__, priv->total_posted, priv->total_received)); |
1da177e4 LT |
1291 | |
1292 | clear_bit(0, &priv->post_buckets_active); | |
1293 | } | |
1294 | ||
c4028958 DH |
1295 | static void |
1296 | mpt_lan_post_receive_buckets_work(struct work_struct *work) | |
1297 | { | |
1298 | mpt_lan_post_receive_buckets(container_of(work, struct mpt_lan_priv, | |
1299 | post_buckets_task.work)); | |
1300 | } | |
1301 | ||
4805fc76 SH |
1302 | static const struct net_device_ops mpt_netdev_ops = { |
1303 | .ndo_open = mpt_lan_open, | |
1304 | .ndo_stop = mpt_lan_close, | |
1305 | .ndo_start_xmit = mpt_lan_sdu_send, | |
1306 | .ndo_change_mtu = mpt_lan_change_mtu, | |
1307 | .ndo_tx_timeout = mpt_lan_tx_timeout, | |
1308 | }; | |
1309 | ||
1da177e4 LT |
1310 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
1311 | static struct net_device * | |
1312 | mpt_register_lan_device (MPT_ADAPTER *mpt_dev, int pnum) | |
1313 | { | |
82d1ce50 MK |
1314 | struct net_device *dev; |
1315 | struct mpt_lan_priv *priv; | |
1da177e4 LT |
1316 | u8 HWaddr[FC_ALEN], *a; |
1317 | ||
82d1ce50 | 1318 | dev = alloc_fcdev(sizeof(struct mpt_lan_priv)); |
1da177e4 LT |
1319 | if (!dev) |
1320 | return NULL; | |
1321 | ||
1322 | dev->mtu = MPT_LAN_MTU; | |
1323 | ||
1324 | priv = netdev_priv(dev); | |
1325 | ||
c4028958 | 1326 | priv->dev = dev; |
1da177e4 LT |
1327 | priv->mpt_dev = mpt_dev; |
1328 | priv->pnum = pnum; | |
1329 | ||
c4028958 DH |
1330 | INIT_DELAYED_WORK(&priv->post_buckets_task, |
1331 | mpt_lan_post_receive_buckets_work); | |
1da177e4 LT |
1332 | priv->post_buckets_active = 0; |
1333 | ||
1334 | dlprintk((KERN_INFO MYNAM "@%d: bucketlen = %d\n", | |
1335 | __LINE__, dev->mtu + dev->hard_header_len + 4)); | |
1336 | ||
1337 | atomic_set(&priv->buckets_out, 0); | |
1338 | priv->total_posted = 0; | |
1339 | priv->total_received = 0; | |
1340 | priv->max_buckets_out = max_buckets_out; | |
1341 | if (mpt_dev->pfacts[0].MaxLanBuckets < max_buckets_out) | |
1342 | priv->max_buckets_out = mpt_dev->pfacts[0].MaxLanBuckets; | |
1343 | ||
1344 | dlprintk((KERN_INFO MYNAM "@%d: MaxLanBuckets=%d, max_buckets_out/priv=%d/%d\n", | |
1345 | __LINE__, | |
1346 | mpt_dev->pfacts[0].MaxLanBuckets, | |
1347 | max_buckets_out, | |
1348 | priv->max_buckets_out)); | |
1349 | ||
1350 | priv->bucketthresh = priv->max_buckets_out * 2 / 3; | |
1351 | spin_lock_init(&priv->txfidx_lock); | |
1352 | spin_lock_init(&priv->rxfidx_lock); | |
1353 | ||
1da177e4 LT |
1354 | /* Grab pre-fetched LANPage1 stuff. :-) */ |
1355 | a = (u8 *) &mpt_dev->lan_cnfg_page1.HardwareAddressLow; | |
1356 | ||
1357 | HWaddr[0] = a[5]; | |
1358 | HWaddr[1] = a[4]; | |
1359 | HWaddr[2] = a[3]; | |
1360 | HWaddr[3] = a[2]; | |
1361 | HWaddr[4] = a[1]; | |
1362 | HWaddr[5] = a[0]; | |
1363 | ||
1364 | dev->addr_len = FC_ALEN; | |
1365 | memcpy(dev->dev_addr, HWaddr, FC_ALEN); | |
1366 | memset(dev->broadcast, 0xff, FC_ALEN); | |
1367 | ||
1368 | /* The Tx queue is 127 deep on the 909. | |
1369 | * Give ourselves some breathing room. | |
1370 | */ | |
1371 | priv->tx_max_out = (tx_max_out_p <= MPT_TX_MAX_OUT_LIM) ? | |
1372 | tx_max_out_p : MPT_TX_MAX_OUT_LIM; | |
1373 | ||
4805fc76 | 1374 | dev->netdev_ops = &mpt_netdev_ops; |
1da177e4 LT |
1375 | dev->watchdog_timeo = MPT_LAN_TX_TIMEOUT; |
1376 | ||
1377 | dlprintk((KERN_INFO MYNAM ": Finished registering dev " | |
1378 | "and setting initial values\n")); | |
1379 | ||
1da177e4 LT |
1380 | if (register_netdev(dev) != 0) { |
1381 | free_netdev(dev); | |
1382 | dev = NULL; | |
1383 | } | |
1384 | return dev; | |
1385 | } | |
1386 | ||
1387 | static int | |
1388 | mptlan_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
1389 | { | |
1390 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); | |
1391 | struct net_device *dev; | |
1392 | int i; | |
1393 | ||
1394 | for (i = 0; i < ioc->facts.NumberOfPorts; i++) { | |
1395 | printk(KERN_INFO MYNAM ": %s: PortNum=%x, " | |
1396 | "ProtocolFlags=%02Xh (%c%c%c%c)\n", | |
1397 | ioc->name, ioc->pfacts[i].PortNumber, | |
1398 | ioc->pfacts[i].ProtocolFlags, | |
1399 | MPT_PROTOCOL_FLAGS_c_c_c_c( | |
1400 | ioc->pfacts[i].ProtocolFlags)); | |
1401 | ||
1402 | if (!(ioc->pfacts[i].ProtocolFlags & | |
1403 | MPI_PORTFACTS_PROTOCOL_LAN)) { | |
1404 | printk(KERN_INFO MYNAM ": %s: Hmmm... LAN protocol " | |
1405 | "seems to be disabled on this adapter port!\n", | |
1406 | ioc->name); | |
1407 | continue; | |
1408 | } | |
1409 | ||
1410 | dev = mpt_register_lan_device(ioc, i); | |
1411 | if (!dev) { | |
1412 | printk(KERN_ERR MYNAM ": %s: Unable to register " | |
1413 | "port%d as a LAN device\n", ioc->name, | |
1414 | ioc->pfacts[i].PortNumber); | |
1415 | continue; | |
1416 | } | |
1417 | ||
1418 | printk(KERN_INFO MYNAM ": %s: Fusion MPT LAN device " | |
1419 | "registered as '%s'\n", ioc->name, dev->name); | |
1420 | printk(KERN_INFO MYNAM ": %s/%s: " | |
7c510e4b | 1421 | "LanAddr = %pM\n", |
1da177e4 | 1422 | IOC_AND_NETDEV_NAMES_s_s(dev), |
7c510e4b | 1423 | dev->dev_addr); |
1da177e4 LT |
1424 | |
1425 | ioc->netdev = dev; | |
1426 | ||
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | return -ENODEV; | |
1431 | } | |
1432 | ||
1433 | static void | |
1434 | mptlan_remove(struct pci_dev *pdev) | |
1435 | { | |
1436 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); | |
1437 | struct net_device *dev = ioc->netdev; | |
1438 | ||
1439 | if(dev != NULL) { | |
1440 | unregister_netdev(dev); | |
1441 | free_netdev(dev); | |
1442 | } | |
1443 | } | |
1444 | ||
1445 | static struct mpt_pci_driver mptlan_driver = { | |
1446 | .probe = mptlan_probe, | |
1447 | .remove = mptlan_remove, | |
1448 | }; | |
1449 | ||
1450 | static int __init mpt_lan_init (void) | |
1451 | { | |
1452 | show_mptmod_ver(LANAME, LANVER); | |
1453 | ||
1454 | if ((LanCtx = mpt_register(lan_reply, MPTLAN_DRIVER)) <= 0) { | |
1455 | printk (KERN_ERR MYNAM ": Failed to register with MPT base driver\n"); | |
1456 | return -EBUSY; | |
1457 | } | |
1458 | ||
1da177e4 LT |
1459 | dlprintk((KERN_INFO MYNAM ": assigned context of %d\n", LanCtx)); |
1460 | ||
1461 | if (mpt_reset_register(LanCtx, mpt_lan_ioc_reset)) { | |
1462 | printk(KERN_ERR MYNAM ": Eieee! unable to register a reset " | |
1463 | "handler with mptbase! The world is at an end! " | |
1464 | "Everything is fading to black! Goodbye.\n"); | |
1465 | return -EBUSY; | |
1466 | } | |
1467 | ||
1468 | dlprintk((KERN_INFO MYNAM ": Registered for IOC reset notifications\n")); | |
1469 | ||
d6ecdd63 | 1470 | mpt_device_driver_register(&mptlan_driver, MPTLAN_DRIVER); |
1da177e4 LT |
1471 | return 0; |
1472 | } | |
1473 | ||
1474 | static void __exit mpt_lan_exit(void) | |
1475 | { | |
1476 | mpt_device_driver_deregister(MPTLAN_DRIVER); | |
1477 | mpt_reset_deregister(LanCtx); | |
1478 | ||
f606f571 | 1479 | if (LanCtx) { |
1da177e4 | 1480 | mpt_deregister(LanCtx); |
f606f571 | 1481 | LanCtx = MPT_MAX_PROTOCOL_DRIVERS; |
1da177e4 LT |
1482 | } |
1483 | } | |
1484 | ||
1485 | module_init(mpt_lan_init); | |
1486 | module_exit(mpt_lan_exit); | |
1487 | ||
1488 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ | |
1489 | static unsigned short | |
1490 | mpt_lan_type_trans(struct sk_buff *skb, struct net_device *dev) | |
1491 | { | |
1492 | struct mpt_lan_ohdr *fch = (struct mpt_lan_ohdr *)skb->data; | |
1493 | struct fcllc *fcllc; | |
1494 | ||
459a98ed | 1495 | skb_reset_mac_header(skb); |
1da177e4 LT |
1496 | skb_pull(skb, sizeof(struct mpt_lan_ohdr)); |
1497 | ||
1498 | if (fch->dtype == htons(0xffff)) { | |
1499 | u32 *p = (u32 *) fch; | |
1500 | ||
1501 | swab32s(p + 0); | |
1502 | swab32s(p + 1); | |
1503 | swab32s(p + 2); | |
1504 | swab32s(p + 3); | |
1505 | ||
1506 | printk (KERN_WARNING MYNAM ": %s: WARNING - Broadcast swap F/W bug detected!\n", | |
1507 | NETDEV_PTR_TO_IOC_NAME_s(dev)); | |
7c510e4b JB |
1508 | printk (KERN_WARNING MYNAM ": Please update sender @ MAC_addr = %pM\n", |
1509 | fch->saddr); | |
1da177e4 LT |
1510 | } |
1511 | ||
1512 | if (*fch->daddr & 1) { | |
1513 | if (!memcmp(fch->daddr, dev->broadcast, FC_ALEN)) { | |
1514 | skb->pkt_type = PACKET_BROADCAST; | |
1515 | } else { | |
1516 | skb->pkt_type = PACKET_MULTICAST; | |
1517 | } | |
1518 | } else { | |
1519 | if (memcmp(fch->daddr, dev->dev_addr, FC_ALEN)) { | |
1520 | skb->pkt_type = PACKET_OTHERHOST; | |
1521 | } else { | |
1522 | skb->pkt_type = PACKET_HOST; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | fcllc = (struct fcllc *)skb->data; | |
1527 | ||
1da177e4 LT |
1528 | /* Strip the SNAP header from ARP packets since we don't |
1529 | * pass them through to the 802.2/SNAP layers. | |
1530 | */ | |
1531 | if (fcllc->dsap == EXTENDED_SAP && | |
1532 | (fcllc->ethertype == htons(ETH_P_IP) || | |
1533 | fcllc->ethertype == htons(ETH_P_ARP))) { | |
1534 | skb_pull(skb, sizeof(struct fcllc)); | |
1535 | return fcllc->ethertype; | |
1536 | } | |
1537 | ||
1538 | return htons(ETH_P_802_2); | |
1539 | } | |
1540 | ||
1541 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |