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