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1da177e4 LT |
1 | /* |
2 | * QLOGIC LINUX SOFTWARE | |
3 | * | |
4 | * QLogic ISP2x00 device driver for Linux 2.6.x | |
5 | * Copyright (C) 2003-2004 QLogic Corporation | |
6 | * (www.qlogic.com) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | */ | |
19 | #include "qla_def.h" | |
20 | ||
21 | static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); | |
22 | static void qla2x00_async_event(scsi_qla_host_t *, uint32_t); | |
23 | static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t); | |
24 | void qla2x00_process_response_queue(struct scsi_qla_host *); | |
25 | static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *); | |
26 | static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *); | |
27 | static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *); | |
28 | static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *); | |
29 | ||
1da177e4 LT |
30 | /** |
31 | * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. | |
32 | * @irq: | |
33 | * @dev_id: SCSI driver HA context | |
34 | * @regs: | |
35 | * | |
36 | * Called by system whenever the host adapter generates an interrupt. | |
37 | * | |
38 | * Returns handled flag. | |
39 | */ | |
40 | irqreturn_t | |
41 | qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs) | |
42 | { | |
43 | scsi_qla_host_t *ha; | |
44 | device_reg_t __iomem *reg; | |
45 | int status; | |
46 | unsigned long flags; | |
47 | unsigned long iter; | |
48 | uint32_t mbx; | |
49 | ||
50 | ha = (scsi_qla_host_t *) dev_id; | |
51 | if (!ha) { | |
52 | printk(KERN_INFO | |
53 | "%s(): NULL host pointer\n", __func__); | |
54 | return (IRQ_NONE); | |
55 | } | |
56 | ||
57 | reg = ha->iobase; | |
58 | status = 0; | |
59 | ||
60 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
61 | for (iter = 50; iter--; ) { | |
62 | if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) | |
63 | break; | |
64 | ||
65 | if (RD_REG_WORD(®->semaphore) & BIT_0) { | |
66 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
67 | RD_REG_WORD(®->hccr); | |
68 | ||
69 | /* Get mailbox data. */ | |
70 | mbx = RD_MAILBOX_REG(ha, reg, 0); | |
71 | if (mbx > 0x3fff && mbx < 0x8000) { | |
72 | qla2x00_mbx_completion(ha, (uint16_t)mbx); | |
73 | status |= MBX_INTERRUPT; | |
74 | } else if (mbx > 0x7fff && mbx < 0xc000) { | |
75 | qla2x00_async_event(ha, mbx); | |
76 | } else { | |
77 | /*EMPTY*/ | |
78 | DEBUG2(printk("scsi(%ld): Unrecognized " | |
79 | "interrupt type (%d)\n", | |
80 | ha->host_no, mbx)); | |
81 | } | |
82 | /* Release mailbox registers. */ | |
83 | WRT_REG_WORD(®->semaphore, 0); | |
84 | RD_REG_WORD(®->semaphore); | |
85 | } else { | |
86 | qla2x00_process_response_queue(ha); | |
87 | ||
88 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
89 | RD_REG_WORD(®->hccr); | |
90 | } | |
91 | } | |
92 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
93 | ||
1da177e4 LT |
94 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && |
95 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
96 | spin_lock_irqsave(&ha->mbx_reg_lock, flags); | |
97 | ||
98 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); | |
99 | up(&ha->mbx_intr_sem); | |
100 | ||
101 | spin_unlock_irqrestore(&ha->mbx_reg_lock, flags); | |
102 | } | |
103 | ||
1da177e4 LT |
104 | return (IRQ_HANDLED); |
105 | } | |
106 | ||
107 | /** | |
108 | * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. | |
109 | * @irq: | |
110 | * @dev_id: SCSI driver HA context | |
111 | * @regs: | |
112 | * | |
113 | * Called by system whenever the host adapter generates an interrupt. | |
114 | * | |
115 | * Returns handled flag. | |
116 | */ | |
117 | irqreturn_t | |
118 | qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs) | |
119 | { | |
120 | scsi_qla_host_t *ha; | |
121 | device_reg_t __iomem *reg; | |
122 | int status; | |
123 | unsigned long flags; | |
124 | unsigned long iter; | |
125 | uint32_t stat; | |
126 | uint32_t mbx; | |
127 | uint16_t hccr; | |
128 | ||
129 | ha = (scsi_qla_host_t *) dev_id; | |
130 | if (!ha) { | |
131 | printk(KERN_INFO | |
132 | "%s(): NULL host pointer\n", __func__); | |
133 | return (IRQ_NONE); | |
134 | } | |
135 | ||
136 | reg = ha->iobase; | |
137 | status = 0; | |
138 | ||
139 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
140 | for (iter = 50; iter--; ) { | |
141 | stat = RD_REG_DWORD(®->u.isp2300.host_status); | |
142 | if (stat & HSR_RISC_PAUSED) { | |
143 | hccr = RD_REG_WORD(®->hccr); | |
144 | if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) | |
145 | qla_printk(KERN_INFO, ha, | |
146 | "Parity error -- HCCR=%x.\n", hccr); | |
147 | else | |
148 | qla_printk(KERN_INFO, ha, | |
149 | "RISC paused -- HCCR=%x\n", hccr); | |
150 | ||
151 | /* | |
152 | * Issue a "HARD" reset in order for the RISC | |
153 | * interrupt bit to be cleared. Schedule a big | |
154 | * hammmer to get out of the RISC PAUSED state. | |
155 | */ | |
156 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
157 | RD_REG_WORD(®->hccr); | |
158 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
159 | break; | |
160 | } else if ((stat & HSR_RISC_INT) == 0) | |
161 | break; | |
162 | ||
163 | mbx = MSW(stat); | |
164 | switch (stat & 0xff) { | |
165 | case 0x13: | |
166 | qla2x00_process_response_queue(ha); | |
167 | break; | |
168 | case 0x1: | |
169 | case 0x2: | |
170 | case 0x10: | |
171 | case 0x11: | |
172 | qla2x00_mbx_completion(ha, (uint16_t)mbx); | |
173 | status |= MBX_INTERRUPT; | |
174 | ||
175 | /* Release mailbox registers. */ | |
176 | WRT_REG_WORD(®->semaphore, 0); | |
177 | break; | |
178 | case 0x12: | |
179 | qla2x00_async_event(ha, mbx); | |
180 | break; | |
181 | case 0x15: | |
182 | mbx = mbx << 16 | MBA_CMPLT_1_16BIT; | |
183 | qla2x00_async_event(ha, mbx); | |
184 | break; | |
185 | case 0x16: | |
186 | mbx = mbx << 16 | MBA_SCSI_COMPLETION; | |
187 | qla2x00_async_event(ha, mbx); | |
188 | break; | |
189 | default: | |
190 | DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " | |
191 | "(%d)\n", | |
192 | ha->host_no, stat & 0xff)); | |
193 | break; | |
194 | } | |
195 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
196 | RD_REG_WORD_RELAXED(®->hccr); | |
197 | } | |
198 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
199 | ||
1da177e4 LT |
200 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && |
201 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
202 | spin_lock_irqsave(&ha->mbx_reg_lock, flags); | |
203 | ||
204 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); | |
205 | up(&ha->mbx_intr_sem); | |
206 | ||
207 | spin_unlock_irqrestore(&ha->mbx_reg_lock, flags); | |
208 | } | |
209 | ||
1da177e4 LT |
210 | return (IRQ_HANDLED); |
211 | } | |
212 | ||
213 | /** | |
214 | * qla2x00_mbx_completion() - Process mailbox command completions. | |
215 | * @ha: SCSI driver HA context | |
216 | * @mb0: Mailbox0 register | |
217 | */ | |
218 | static void | |
219 | qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) | |
220 | { | |
221 | uint16_t cnt; | |
222 | uint16_t __iomem *wptr; | |
223 | device_reg_t __iomem *reg = ha->iobase; | |
224 | ||
225 | /* Load return mailbox registers. */ | |
226 | ha->flags.mbox_int = 1; | |
227 | ha->mailbox_out[0] = mb0; | |
228 | wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); | |
229 | ||
230 | for (cnt = 1; cnt < ha->mbx_count; cnt++) { | |
231 | if (IS_QLA2200(ha) && cnt == 8) | |
232 | wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); | |
233 | if (cnt == 4 || cnt == 5) | |
234 | ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); | |
235 | else | |
236 | ha->mailbox_out[cnt] = RD_REG_WORD(wptr); | |
237 | ||
238 | wptr++; | |
239 | } | |
240 | ||
241 | if (ha->mcp) { | |
242 | DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", | |
243 | __func__, ha->host_no, ha->mcp->mb[0])); | |
244 | } else { | |
245 | DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", | |
246 | __func__, ha->host_no)); | |
247 | } | |
248 | } | |
249 | ||
250 | /** | |
251 | * qla2x00_async_event() - Process aynchronous events. | |
252 | * @ha: SCSI driver HA context | |
253 | * @mb0: Mailbox0 register | |
254 | */ | |
255 | static void | |
256 | qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) | |
257 | { | |
258 | static char *link_speeds[5] = { "1", "2", "4", "?", "10" }; | |
259 | char *link_speed; | |
260 | uint16_t mb[4]; | |
261 | uint16_t handle_cnt; | |
262 | uint16_t cnt; | |
263 | uint32_t handles[5]; | |
264 | device_reg_t __iomem *reg = ha->iobase; | |
265 | uint32_t rscn_entry, host_pid; | |
266 | uint8_t rscn_queue_index; | |
267 | ||
268 | /* Setup to process RIO completion. */ | |
269 | handle_cnt = 0; | |
270 | mb[0] = LSW(mbx); | |
271 | switch (mb[0]) { | |
272 | case MBA_SCSI_COMPLETION: | |
273 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) | |
274 | handles[0] = le32_to_cpu( | |
275 | ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | | |
276 | RD_MAILBOX_REG(ha, reg, 1)); | |
277 | else | |
278 | handles[0] = le32_to_cpu( | |
279 | ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | | |
280 | MSW(mbx)); | |
281 | handle_cnt = 1; | |
282 | break; | |
283 | case MBA_CMPLT_1_16BIT: | |
284 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) | |
285 | handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); | |
286 | else | |
287 | handles[0] = MSW(mbx); | |
288 | handle_cnt = 1; | |
289 | mb[0] = MBA_SCSI_COMPLETION; | |
290 | break; | |
291 | case MBA_CMPLT_2_16BIT: | |
292 | handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); | |
293 | handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); | |
294 | handle_cnt = 2; | |
295 | mb[0] = MBA_SCSI_COMPLETION; | |
296 | break; | |
297 | case MBA_CMPLT_3_16BIT: | |
298 | handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); | |
299 | handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); | |
300 | handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); | |
301 | handle_cnt = 3; | |
302 | mb[0] = MBA_SCSI_COMPLETION; | |
303 | break; | |
304 | case MBA_CMPLT_4_16BIT: | |
305 | handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); | |
306 | handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); | |
307 | handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); | |
308 | handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); | |
309 | handle_cnt = 4; | |
310 | mb[0] = MBA_SCSI_COMPLETION; | |
311 | break; | |
312 | case MBA_CMPLT_5_16BIT: | |
313 | handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); | |
314 | handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); | |
315 | handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); | |
316 | handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); | |
317 | handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); | |
318 | handle_cnt = 5; | |
319 | mb[0] = MBA_SCSI_COMPLETION; | |
320 | break; | |
321 | case MBA_CMPLT_2_32BIT: | |
322 | handles[0] = le32_to_cpu( | |
323 | ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | | |
324 | RD_MAILBOX_REG(ha, reg, 1)); | |
325 | handles[1] = le32_to_cpu( | |
326 | ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | | |
327 | RD_MAILBOX_REG(ha, reg, 6)); | |
328 | handle_cnt = 2; | |
329 | mb[0] = MBA_SCSI_COMPLETION; | |
330 | break; | |
331 | default: | |
332 | break; | |
333 | } | |
334 | ||
335 | switch (mb[0]) { | |
336 | case MBA_SCSI_COMPLETION: /* Fast Post */ | |
337 | if (!ha->flags.online) | |
338 | break; | |
339 | ||
340 | for (cnt = 0; cnt < handle_cnt; cnt++) | |
341 | qla2x00_process_completed_request(ha, handles[cnt]); | |
342 | break; | |
343 | ||
344 | case MBA_RESET: /* Reset */ | |
345 | DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no)); | |
346 | ||
347 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
348 | break; | |
349 | ||
350 | case MBA_SYSTEM_ERR: /* System Error */ | |
351 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
352 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
353 | mb[3] = RD_MAILBOX_REG(ha, reg, 3); | |
354 | ||
355 | qla_printk(KERN_INFO, ha, | |
356 | "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n", | |
357 | mb[1], mb[2], mb[3]); | |
358 | ||
abbd8870 | 359 | ha->isp_ops.fw_dump(ha, 1); |
1da177e4 LT |
360 | |
361 | if (mb[1] == 0) { | |
362 | qla_printk(KERN_INFO, ha, | |
363 | "Unrecoverable Hardware Error: adapter marked " | |
364 | "OFFLINE!\n"); | |
365 | ha->flags.online = 0; | |
366 | } else | |
367 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
368 | break; | |
369 | ||
370 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
371 | DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n", | |
372 | ha->host_no)); | |
373 | qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n"); | |
374 | ||
375 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
376 | break; | |
377 | ||
378 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ | |
379 | DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", | |
380 | ha->host_no)); | |
381 | qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); | |
382 | ||
383 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
384 | break; | |
385 | ||
386 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ | |
387 | DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", | |
388 | ha->host_no)); | |
389 | break; | |
390 | ||
391 | case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ | |
392 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
393 | ||
394 | DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no, | |
395 | mb[1])); | |
396 | qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]); | |
397 | ||
398 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
399 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
400 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
401 | qla2x00_mark_all_devices_lost(ha); | |
402 | } | |
403 | ||
404 | set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); | |
405 | ||
406 | ha->flags.management_server_logged_in = 0; | |
407 | ||
408 | /* Update AEN queue. */ | |
409 | qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL); | |
410 | ||
1da177e4 LT |
411 | break; |
412 | ||
413 | case MBA_LOOP_UP: /* Loop Up Event */ | |
414 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
415 | ||
416 | ha->link_data_rate = 0; | |
417 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) { | |
418 | link_speed = link_speeds[0]; | |
419 | } else { | |
420 | link_speed = link_speeds[3]; | |
421 | if (mb[1] < 5) | |
422 | link_speed = link_speeds[mb[1]]; | |
423 | ha->link_data_rate = mb[1]; | |
424 | } | |
425 | ||
426 | DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", | |
427 | ha->host_no, link_speed)); | |
428 | qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", | |
429 | link_speed); | |
430 | ||
431 | ha->flags.management_server_logged_in = 0; | |
432 | ||
433 | /* Update AEN queue. */ | |
434 | qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL); | |
435 | break; | |
436 | ||
437 | case MBA_LOOP_DOWN: /* Loop Down Event */ | |
438 | DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n", | |
439 | ha->host_no)); | |
440 | qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n"); | |
441 | ||
442 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
443 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
444 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
445 | ha->device_flags |= DFLG_NO_CABLE; | |
446 | qla2x00_mark_all_devices_lost(ha); | |
447 | } | |
448 | ||
449 | ha->flags.management_server_logged_in = 0; | |
450 | ha->link_data_rate = 0; | |
451 | ||
452 | /* Update AEN queue. */ | |
453 | qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL); | |
454 | break; | |
455 | ||
456 | case MBA_LIP_RESET: /* LIP reset occurred */ | |
457 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
458 | ||
459 | DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", | |
460 | ha->host_no, mb[1])); | |
461 | qla_printk(KERN_INFO, ha, | |
462 | "LIP reset occured (%x).\n", mb[1]); | |
463 | ||
464 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
465 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
466 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
467 | qla2x00_mark_all_devices_lost(ha); | |
468 | } | |
469 | ||
470 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
471 | ||
472 | ha->operating_mode = LOOP; | |
473 | ha->flags.management_server_logged_in = 0; | |
474 | ||
475 | /* Update AEN queue. */ | |
476 | qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL); | |
477 | ||
1da177e4 LT |
478 | break; |
479 | ||
480 | case MBA_POINT_TO_POINT: /* Point-to-Point */ | |
481 | if (IS_QLA2100(ha)) | |
482 | break; | |
483 | ||
484 | DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n", | |
485 | ha->host_no)); | |
486 | ||
487 | /* | |
488 | * Until there's a transition from loop down to loop up, treat | |
489 | * this as loop down only. | |
490 | */ | |
491 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
492 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
493 | if (!atomic_read(&ha->loop_down_timer)) | |
494 | atomic_set(&ha->loop_down_timer, | |
495 | LOOP_DOWN_TIME); | |
496 | qla2x00_mark_all_devices_lost(ha); | |
497 | } | |
498 | ||
499 | if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { | |
500 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
501 | } | |
502 | set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); | |
503 | break; | |
504 | ||
505 | case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ | |
506 | if (IS_QLA2100(ha)) | |
507 | break; | |
508 | ||
509 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
510 | ||
511 | DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " | |
512 | "received.\n", | |
513 | ha->host_no)); | |
514 | qla_printk(KERN_INFO, ha, | |
515 | "Configuration change detected: value=%x.\n", mb[1]); | |
516 | ||
517 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
518 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
519 | if (!atomic_read(&ha->loop_down_timer)) | |
520 | atomic_set(&ha->loop_down_timer, | |
521 | LOOP_DOWN_TIME); | |
522 | qla2x00_mark_all_devices_lost(ha); | |
523 | } | |
524 | ||
525 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
526 | set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
527 | break; | |
528 | ||
529 | case MBA_PORT_UPDATE: /* Port database update */ | |
530 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
531 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
532 | ||
533 | /* | |
534 | * If a single remote port just logged into (or logged out of) | |
535 | * us, create a new entry in our rscn fcports list and handle | |
536 | * the event like an RSCN. | |
537 | */ | |
538 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) && | |
539 | !IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff && | |
540 | ((ha->operating_mode == P2P && mb[1] != 0) || | |
541 | (ha->operating_mode != P2P && mb[1] != | |
542 | SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) { | |
543 | int rval; | |
544 | fc_port_t *rscn_fcport; | |
545 | ||
546 | /* Create new fcport for login. */ | |
547 | rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC); | |
548 | if (rscn_fcport) { | |
549 | DEBUG14(printk("scsi(%ld): Port Update -- " | |
550 | "creating RSCN fcport %p for %x/%x.\n", | |
551 | ha->host_no, rscn_fcport, mb[1], mb[2])); | |
552 | ||
553 | rscn_fcport->loop_id = mb[1]; | |
554 | rscn_fcport->d_id.b24 = INVALID_PORT_ID; | |
555 | atomic_set(&rscn_fcport->state, | |
556 | FCS_DEVICE_LOST); | |
557 | list_add_tail(&rscn_fcport->list, | |
558 | &ha->rscn_fcports); | |
559 | ||
560 | rval = qla2x00_handle_port_rscn(ha, 0, | |
561 | rscn_fcport, 1); | |
562 | if (rval == QLA_SUCCESS) | |
563 | break; | |
564 | } else { | |
565 | DEBUG14(printk("scsi(%ld): Port Update -- " | |
566 | "-- unable to allocate RSCN fcport " | |
567 | "login.\n", ha->host_no)); | |
568 | } | |
569 | } | |
570 | ||
571 | /* | |
572 | * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET | |
573 | * event etc. earlier indicating loop is down) then process | |
574 | * it. Otherwise ignore it and Wait for RSCN to come in. | |
575 | */ | |
576 | atomic_set(&ha->loop_down_timer, 0); | |
577 | if (atomic_read(&ha->loop_state) != LOOP_DOWN && | |
578 | atomic_read(&ha->loop_state) != LOOP_DEAD) { | |
579 | DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " | |
580 | "ignored.\n", ha->host_no)); | |
581 | break; | |
582 | } | |
583 | ||
584 | DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", | |
585 | ha->host_no)); | |
586 | DEBUG(printk(KERN_INFO | |
587 | "scsi(%ld): Port database changed %04x %04x.\n", | |
588 | ha->host_no, mb[1], mb[2])); | |
589 | ||
590 | /* | |
591 | * Mark all devices as missing so we will login again. | |
592 | */ | |
593 | atomic_set(&ha->loop_state, LOOP_UP); | |
594 | ||
595 | qla2x00_mark_all_devices_lost(ha); | |
596 | ||
597 | ha->flags.rscn_queue_overflow = 1; | |
598 | ||
599 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
600 | set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
601 | ||
602 | /* Update AEN queue. */ | |
603 | qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL); | |
604 | break; | |
605 | ||
606 | case MBA_RSCN_UPDATE: /* State Change Registration */ | |
607 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
608 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
609 | ||
610 | DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", | |
611 | ha->host_no)); | |
612 | DEBUG(printk(KERN_INFO | |
613 | "scsi(%ld): RSCN database changed -- %04x %04x.\n", | |
614 | ha->host_no, mb[1], mb[2])); | |
615 | ||
616 | rscn_entry = (mb[1] << 16) | mb[2]; | |
617 | host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) | | |
618 | ha->d_id.b.al_pa; | |
619 | if (rscn_entry == host_pid) { | |
620 | DEBUG(printk(KERN_INFO | |
621 | "scsi(%ld): Ignoring RSCN update to local host " | |
622 | "port ID (%06x)\n", | |
623 | ha->host_no, host_pid)); | |
624 | break; | |
625 | } | |
626 | ||
627 | rscn_queue_index = ha->rscn_in_ptr + 1; | |
628 | if (rscn_queue_index == MAX_RSCN_COUNT) | |
629 | rscn_queue_index = 0; | |
630 | if (rscn_queue_index != ha->rscn_out_ptr) { | |
631 | ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry; | |
632 | ha->rscn_in_ptr = rscn_queue_index; | |
633 | } else { | |
634 | ha->flags.rscn_queue_overflow = 1; | |
635 | } | |
636 | ||
637 | atomic_set(&ha->loop_state, LOOP_UPDATE); | |
638 | atomic_set(&ha->loop_down_timer, 0); | |
639 | ha->flags.management_server_logged_in = 0; | |
640 | ||
641 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
642 | set_bit(RSCN_UPDATE, &ha->dpc_flags); | |
643 | ||
644 | /* Update AEN queue. */ | |
645 | qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]); | |
646 | break; | |
647 | ||
648 | /* case MBA_RIO_RESPONSE: */ | |
649 | case MBA_ZIO_RESPONSE: | |
650 | DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n", | |
651 | ha->host_no)); | |
652 | DEBUG(printk(KERN_INFO | |
653 | "scsi(%ld): [R|Z]IO update completion.\n", | |
654 | ha->host_no)); | |
655 | ||
656 | qla2x00_process_response_queue(ha); | |
657 | break; | |
658 | } | |
659 | } | |
660 | ||
661 | /** | |
662 | * qla2x00_process_completed_request() - Process a Fast Post response. | |
663 | * @ha: SCSI driver HA context | |
664 | * @index: SRB index | |
665 | */ | |
666 | static void | |
667 | qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) | |
668 | { | |
669 | srb_t *sp; | |
670 | ||
671 | /* Validate handle. */ | |
672 | if (index >= MAX_OUTSTANDING_COMMANDS) { | |
673 | DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", | |
674 | ha->host_no, index)); | |
675 | qla_printk(KERN_WARNING, ha, | |
676 | "Invalid SCSI completion handle %d.\n", index); | |
677 | ||
678 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
679 | return; | |
680 | } | |
681 | ||
682 | sp = ha->outstanding_cmds[index]; | |
683 | if (sp) { | |
684 | /* Free outstanding command slot. */ | |
685 | ha->outstanding_cmds[index] = NULL; | |
686 | ||
1da177e4 LT |
687 | CMD_COMPL_STATUS(sp->cmd) = 0L; |
688 | CMD_SCSI_STATUS(sp->cmd) = 0L; | |
689 | ||
690 | /* Save ISP completion status */ | |
691 | sp->cmd->result = DID_OK << 16; | |
f4f051eb | 692 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
693 | } else { |
694 | DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n", | |
695 | ha->host_no)); | |
696 | qla_printk(KERN_WARNING, ha, | |
697 | "Invalid ISP SCSI completion handle\n"); | |
698 | ||
699 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
700 | } | |
701 | } | |
702 | ||
703 | /** | |
704 | * qla2x00_process_response_queue() - Process response queue entries. | |
705 | * @ha: SCSI driver HA context | |
706 | */ | |
707 | void | |
708 | qla2x00_process_response_queue(struct scsi_qla_host *ha) | |
709 | { | |
710 | device_reg_t __iomem *reg = ha->iobase; | |
711 | sts_entry_t *pkt; | |
712 | uint16_t handle_cnt; | |
713 | uint16_t cnt; | |
714 | ||
715 | if (!ha->flags.online) | |
716 | return; | |
717 | ||
718 | while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { | |
719 | pkt = (sts_entry_t *)ha->response_ring_ptr; | |
720 | ||
721 | ha->rsp_ring_index++; | |
722 | if (ha->rsp_ring_index == ha->response_q_length) { | |
723 | ha->rsp_ring_index = 0; | |
724 | ha->response_ring_ptr = ha->response_ring; | |
725 | } else { | |
726 | ha->response_ring_ptr++; | |
727 | } | |
728 | ||
729 | if (pkt->entry_status != 0) { | |
730 | DEBUG3(printk(KERN_INFO | |
731 | "scsi(%ld): Process error entry.\n", ha->host_no)); | |
732 | ||
733 | qla2x00_error_entry(ha, pkt); | |
734 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
735 | wmb(); | |
736 | continue; | |
737 | } | |
738 | ||
739 | switch (pkt->entry_type) { | |
740 | case STATUS_TYPE: | |
741 | qla2x00_status_entry(ha, pkt); | |
742 | break; | |
743 | case STATUS_TYPE_21: | |
744 | handle_cnt = ((sts21_entry_t *)pkt)->handle_count; | |
745 | for (cnt = 0; cnt < handle_cnt; cnt++) { | |
746 | qla2x00_process_completed_request(ha, | |
747 | ((sts21_entry_t *)pkt)->handle[cnt]); | |
748 | } | |
749 | break; | |
750 | case STATUS_TYPE_22: | |
751 | handle_cnt = ((sts22_entry_t *)pkt)->handle_count; | |
752 | for (cnt = 0; cnt < handle_cnt; cnt++) { | |
753 | qla2x00_process_completed_request(ha, | |
754 | ((sts22_entry_t *)pkt)->handle[cnt]); | |
755 | } | |
756 | break; | |
757 | case STATUS_CONT_TYPE: | |
758 | qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); | |
759 | break; | |
760 | case MS_IOCB_TYPE: | |
761 | qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt); | |
762 | break; | |
763 | case MBX_IOCB_TYPE: | |
764 | if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && | |
765 | !IS_QLA6312(ha) && !IS_QLA6322(ha)) { | |
766 | if (pkt->sys_define == SOURCE_ASYNC_IOCB) { | |
767 | qla2x00_process_iodesc(ha, | |
768 | (struct mbx_entry *)pkt); | |
769 | } else { | |
770 | /* MBX IOCB Type Not Supported. */ | |
771 | DEBUG4(printk(KERN_WARNING | |
772 | "scsi(%ld): Received unknown MBX " | |
773 | "IOCB response pkt type=%x " | |
774 | "source=%x entry status=%x.\n", | |
775 | ha->host_no, pkt->entry_type, | |
776 | pkt->sys_define, | |
777 | pkt->entry_status)); | |
778 | } | |
779 | break; | |
780 | } | |
781 | /* Fallthrough. */ | |
782 | default: | |
783 | /* Type Not Supported. */ | |
784 | DEBUG4(printk(KERN_WARNING | |
785 | "scsi(%ld): Received unknown response pkt type %x " | |
786 | "entry status=%x.\n", | |
787 | ha->host_no, pkt->entry_type, pkt->entry_status)); | |
788 | break; | |
789 | } | |
790 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
791 | wmb(); | |
792 | } | |
793 | ||
794 | /* Adjust ring index */ | |
795 | WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index); | |
796 | } | |
797 | ||
798 | /** | |
799 | * qla2x00_status_entry() - Process a Status IOCB entry. | |
800 | * @ha: SCSI driver HA context | |
801 | * @pkt: Entry pointer | |
802 | */ | |
803 | static void | |
804 | qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) | |
805 | { | |
1da177e4 LT |
806 | unsigned b, t, l; |
807 | srb_t *sp; | |
1da177e4 LT |
808 | fc_port_t *fcport; |
809 | struct scsi_cmnd *cp; | |
810 | uint16_t comp_status; | |
811 | uint16_t scsi_status; | |
812 | uint8_t lscsi_status; | |
813 | int32_t resid; | |
814 | uint8_t sense_sz = 0; | |
815 | uint16_t rsp_info_len; | |
816 | ||
817 | /* Fast path completion. */ | |
818 | if (le16_to_cpu(pkt->comp_status) == CS_COMPLETE && | |
819 | (le16_to_cpu(pkt->scsi_status) & SS_MASK) == 0) { | |
820 | qla2x00_process_completed_request(ha, pkt->handle); | |
821 | ||
822 | return; | |
823 | } | |
824 | ||
825 | /* Validate handle. */ | |
826 | if (pkt->handle < MAX_OUTSTANDING_COMMANDS) { | |
827 | sp = ha->outstanding_cmds[pkt->handle]; | |
828 | ha->outstanding_cmds[pkt->handle] = NULL; | |
829 | } else | |
830 | sp = NULL; | |
831 | ||
832 | if (sp == NULL) { | |
833 | DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n", | |
834 | ha->host_no)); | |
835 | qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n"); | |
836 | ||
837 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
838 | if (ha->dpc_wait && !ha->dpc_active) | |
839 | up(ha->dpc_wait); | |
840 | ||
841 | return; | |
842 | } | |
843 | cp = sp->cmd; | |
844 | if (cp == NULL) { | |
845 | DEBUG2(printk("scsi(%ld): Command already returned back to OS " | |
846 | "pkt->handle=%d sp=%p sp->state:%d\n", | |
847 | ha->host_no, pkt->handle, sp, sp->state)); | |
848 | qla_printk(KERN_WARNING, ha, | |
849 | "Command is NULL: already returned to OS (sp=%p)\n", sp); | |
850 | ||
851 | return; | |
852 | } | |
853 | ||
1da177e4 LT |
854 | comp_status = le16_to_cpu(pkt->comp_status); |
855 | /* Mask of reserved bits 12-15, before we examine the scsi status */ | |
856 | scsi_status = le16_to_cpu(pkt->scsi_status) & SS_MASK; | |
857 | lscsi_status = scsi_status & STATUS_MASK; | |
858 | ||
859 | CMD_ENTRY_STATUS(cp) = pkt->entry_status; | |
860 | CMD_COMPL_STATUS(cp) = comp_status; | |
861 | CMD_SCSI_STATUS(cp) = scsi_status; | |
862 | ||
863 | /* Generate LU queue on cntrl, target, LUN */ | |
864 | b = cp->device->channel; | |
865 | t = cp->device->id; | |
866 | l = cp->device->lun, | |
867 | ||
bdf79621 | 868 | fcport = sp->fcport; |
1da177e4 | 869 | |
1da177e4 LT |
870 | /* Check for any FCP transport errors. */ |
871 | if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { | |
872 | rsp_info_len = le16_to_cpu(pkt->rsp_info_len); | |
873 | if (rsp_info_len > 3 && pkt->rsp_info[3]) { | |
874 | DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol " | |
875 | "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..." | |
876 | "retrying command\n", ha->host_no, b, t, l, | |
877 | rsp_info_len, pkt->rsp_info[0], pkt->rsp_info[1], | |
878 | pkt->rsp_info[2], pkt->rsp_info[3], | |
879 | pkt->rsp_info[4], pkt->rsp_info[5], | |
880 | pkt->rsp_info[6], pkt->rsp_info[7])); | |
881 | ||
882 | cp->result = DID_BUS_BUSY << 16; | |
f4f051eb | 883 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
884 | return; |
885 | } | |
886 | } | |
887 | ||
888 | /* | |
889 | * Based on Host and scsi status generate status code for Linux | |
890 | */ | |
891 | switch (comp_status) { | |
892 | case CS_COMPLETE: | |
893 | if (scsi_status == 0) { | |
894 | cp->result = DID_OK << 16; | |
895 | break; | |
896 | } | |
897 | if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { | |
898 | resid = le32_to_cpu(pkt->residual_length); | |
899 | cp->resid = resid; | |
900 | CMD_RESID_LEN(cp) = resid; | |
901 | } | |
1da177e4 LT |
902 | cp->result = DID_OK << 16 | lscsi_status; |
903 | ||
904 | if (lscsi_status != SS_CHECK_CONDITION) | |
905 | break; | |
906 | ||
907 | /* | |
908 | * Copy Sense Data into sense buffer | |
909 | */ | |
910 | memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer)); | |
911 | ||
912 | if (!(scsi_status & SS_SENSE_LEN_VALID)) | |
913 | break; | |
914 | ||
915 | if (le16_to_cpu(pkt->req_sense_length) < | |
916 | sizeof(cp->sense_buffer)) | |
917 | sense_sz = le16_to_cpu(pkt->req_sense_length); | |
918 | else | |
919 | sense_sz = sizeof(cp->sense_buffer); | |
920 | ||
921 | CMD_ACTUAL_SNSLEN(cp) = sense_sz; | |
922 | sp->request_sense_length = sense_sz; | |
923 | sp->request_sense_ptr = cp->sense_buffer; | |
924 | ||
925 | if (sp->request_sense_length > 32) | |
926 | sense_sz = 32; | |
927 | ||
928 | memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz); | |
929 | ||
930 | sp->request_sense_ptr += sense_sz; | |
931 | sp->request_sense_length -= sense_sz; | |
932 | if (sp->request_sense_length != 0) | |
933 | ha->status_srb = sp; | |
934 | ||
1da177e4 LT |
935 | DEBUG5(printk("%s(): Check condition Sense data, " |
936 | "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", | |
937 | __func__, ha->host_no, b, t, l, cp, | |
938 | cp->serial_number)); | |
939 | if (sense_sz) | |
940 | DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, | |
941 | CMD_ACTUAL_SNSLEN(cp))); | |
942 | break; | |
943 | ||
944 | case CS_DATA_UNDERRUN: | |
945 | DEBUG2(printk(KERN_INFO | |
946 | "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n", | |
947 | ha->host_no, t, l, comp_status, scsi_status)); | |
948 | ||
949 | resid = le32_to_cpu(pkt->residual_length); | |
950 | if (scsi_status & SS_RESIDUAL_UNDER) { | |
951 | cp->resid = resid; | |
952 | CMD_RESID_LEN(cp) = resid; | |
953 | } | |
954 | ||
955 | /* | |
956 | * Check to see if SCSI Status is non zero. If so report SCSI | |
957 | * Status. | |
958 | */ | |
959 | if (lscsi_status != 0) { | |
1da177e4 LT |
960 | cp->result = DID_OK << 16 | lscsi_status; |
961 | ||
962 | if (lscsi_status != SS_CHECK_CONDITION) | |
963 | break; | |
964 | ||
965 | /* Copy Sense Data into sense buffer */ | |
966 | memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer)); | |
967 | ||
968 | if (!(scsi_status & SS_SENSE_LEN_VALID)) | |
969 | break; | |
970 | ||
971 | if (le16_to_cpu(pkt->req_sense_length) < | |
972 | sizeof(cp->sense_buffer)) | |
973 | sense_sz = le16_to_cpu(pkt->req_sense_length); | |
974 | else | |
975 | sense_sz = sizeof(cp->sense_buffer); | |
976 | ||
977 | CMD_ACTUAL_SNSLEN(cp) = sense_sz; | |
978 | sp->request_sense_length = sense_sz; | |
979 | sp->request_sense_ptr = cp->sense_buffer; | |
980 | ||
981 | if (sp->request_sense_length > 32) | |
982 | sense_sz = 32; | |
983 | ||
984 | memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz); | |
985 | ||
986 | sp->request_sense_ptr += sense_sz; | |
987 | sp->request_sense_length -= sense_sz; | |
988 | if (sp->request_sense_length != 0) | |
989 | ha->status_srb = sp; | |
990 | ||
1da177e4 LT |
991 | DEBUG5(printk("%s(): Check condition Sense data, " |
992 | "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", | |
993 | __func__, ha->host_no, b, t, l, cp, | |
994 | cp->serial_number)); | |
995 | if (sense_sz) | |
996 | DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, | |
997 | CMD_ACTUAL_SNSLEN(cp))); | |
998 | } else { | |
999 | /* | |
1000 | * If RISC reports underrun and target does not report | |
1001 | * it then we must have a lost frame, so tell upper | |
1002 | * layer to retry it by reporting a bus busy. | |
1003 | */ | |
1004 | if (!(scsi_status & SS_RESIDUAL_UNDER)) { | |
1005 | DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped " | |
1006 | "frame(s) detected (%x of %x bytes)..." | |
1007 | "retrying command.\n", | |
1008 | ha->host_no, b, t, l, resid, | |
1009 | cp->request_bufflen)); | |
1010 | ||
1011 | cp->result = DID_BUS_BUSY << 16; | |
1da177e4 LT |
1012 | break; |
1013 | } | |
1014 | ||
1015 | /* Handle mid-layer underflow */ | |
1016 | if ((unsigned)(cp->request_bufflen - resid) < | |
1017 | cp->underflow) { | |
1018 | qla_printk(KERN_INFO, ha, | |
1019 | "scsi(%ld:%d:%d:%d): Mid-layer underflow " | |
1020 | "detected (%x of %x bytes)...returning " | |
1021 | "error status.\n", | |
1022 | ha->host_no, b, t, l, resid, | |
1023 | cp->request_bufflen); | |
1024 | ||
1025 | cp->result = DID_ERROR << 16; | |
1026 | break; | |
1027 | } | |
1028 | ||
1029 | /* Everybody online, looking good... */ | |
1030 | cp->result = DID_OK << 16; | |
1031 | } | |
1032 | break; | |
1033 | ||
1034 | case CS_DATA_OVERRUN: | |
1035 | DEBUG2(printk(KERN_INFO | |
1036 | "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n", | |
1037 | ha->host_no, t, l, comp_status, scsi_status)); | |
1038 | DEBUG2(printk(KERN_INFO | |
1039 | "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", | |
1040 | cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3], | |
1041 | cp->cmnd[4], cp->cmnd[5])); | |
1042 | DEBUG2(printk(KERN_INFO | |
1043 | "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR " | |
1044 | "status!\n", | |
1045 | cp->serial_number, cp->request_bufflen, | |
1046 | le32_to_cpu(pkt->residual_length))); | |
1047 | ||
1048 | cp->result = DID_ERROR << 16; | |
1049 | break; | |
1050 | ||
1051 | case CS_PORT_LOGGED_OUT: | |
1052 | case CS_PORT_CONFIG_CHG: | |
1053 | case CS_PORT_BUSY: | |
1054 | case CS_INCOMPLETE: | |
1055 | case CS_PORT_UNAVAILABLE: | |
1056 | /* | |
1057 | * If the port is in Target Down state, return all IOs for this | |
1058 | * Target with DID_NO_CONNECT ELSE Queue the IOs in the | |
1059 | * retry_queue. | |
1060 | */ | |
1da177e4 LT |
1061 | DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down " |
1062 | "pid=%ld, compl status=0x%x, port state=0x%x\n", | |
1063 | ha->host_no, t, l, cp->serial_number, comp_status, | |
1064 | atomic_read(&fcport->state))); | |
1065 | ||
f4f051eb | 1066 | cp->result = DID_BUS_BUSY << 16; |
1da177e4 LT |
1067 | if (atomic_read(&fcport->state) == FCS_ONLINE) { |
1068 | qla2x00_mark_device_lost(ha, fcport, 1); | |
1069 | } | |
1da177e4 LT |
1070 | break; |
1071 | ||
1072 | case CS_RESET: | |
1073 | DEBUG2(printk(KERN_INFO | |
1074 | "scsi(%ld): RESET status detected 0x%x-0x%x.\n", | |
1075 | ha->host_no, comp_status, scsi_status)); | |
1076 | ||
f4f051eb | 1077 | cp->result = DID_RESET << 16; |
1da177e4 LT |
1078 | break; |
1079 | ||
1080 | case CS_ABORTED: | |
1081 | /* | |
1082 | * hv2.19.12 - DID_ABORT does not retry the request if we | |
1083 | * aborted this request then abort otherwise it must be a | |
1084 | * reset. | |
1085 | */ | |
1086 | DEBUG2(printk(KERN_INFO | |
1087 | "scsi(%ld): ABORT status detected 0x%x-0x%x.\n", | |
1088 | ha->host_no, comp_status, scsi_status)); | |
1089 | ||
1090 | cp->result = DID_RESET << 16; | |
1091 | break; | |
1092 | ||
1093 | case CS_TIMEOUT: | |
1094 | DEBUG2(printk(KERN_INFO | |
1095 | "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x " | |
1096 | "sflags=%x.\n", ha->host_no, b, t, l, comp_status, | |
1097 | scsi_status, le16_to_cpu(pkt->status_flags))); | |
1098 | ||
1099 | cp->result = DID_BUS_BUSY << 16; | |
1100 | ||
1da177e4 LT |
1101 | /* Check to see if logout occurred */ |
1102 | if ((le16_to_cpu(pkt->status_flags) & SF_LOGOUT_SENT)) { | |
1103 | qla2x00_mark_device_lost(ha, fcport, 1); | |
1104 | } | |
1105 | break; | |
1106 | ||
1107 | case CS_QUEUE_FULL: | |
1108 | DEBUG2(printk(KERN_INFO | |
1109 | "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n", | |
1110 | ha->host_no, comp_status, scsi_status)); | |
1111 | ||
1112 | /* SCSI Mid-Layer handles device queue full */ | |
1113 | ||
1114 | cp->result = DID_OK << 16 | lscsi_status; | |
1115 | ||
1da177e4 LT |
1116 | break; |
1117 | ||
1118 | default: | |
1119 | DEBUG3(printk("scsi(%ld): Error detected (unknown status) " | |
1120 | "0x%x-0x%x.\n", | |
1121 | ha->host_no, comp_status, scsi_status)); | |
1122 | qla_printk(KERN_INFO, ha, | |
1123 | "Unknown status detected 0x%x-0x%x.\n", | |
1124 | comp_status, scsi_status); | |
1125 | ||
1126 | cp->result = DID_ERROR << 16; | |
1127 | break; | |
1128 | } | |
1129 | ||
1130 | /* Place command on done queue. */ | |
1131 | if (ha->status_srb == NULL) | |
f4f051eb | 1132 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
1133 | } |
1134 | ||
1135 | /** | |
1136 | * qla2x00_status_cont_entry() - Process a Status Continuations entry. | |
1137 | * @ha: SCSI driver HA context | |
1138 | * @pkt: Entry pointer | |
1139 | * | |
1140 | * Extended sense data. | |
1141 | */ | |
1142 | static void | |
1143 | qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) | |
1144 | { | |
1145 | uint8_t sense_sz = 0; | |
1146 | srb_t *sp = ha->status_srb; | |
1147 | struct scsi_cmnd *cp; | |
1148 | ||
1149 | if (sp != NULL && sp->request_sense_length != 0) { | |
1150 | cp = sp->cmd; | |
1151 | if (cp == NULL) { | |
1152 | DEBUG2(printk("%s(): Cmd already returned back to OS " | |
1153 | "sp=%p sp->state:%d\n", __func__, sp, sp->state)); | |
1154 | qla_printk(KERN_INFO, ha, | |
1155 | "cmd is NULL: already returned to OS (sp=%p)\n", | |
1156 | sp); | |
1157 | ||
1158 | ha->status_srb = NULL; | |
1159 | return; | |
1160 | } | |
1161 | ||
1162 | if (sp->request_sense_length > sizeof(pkt->data)) { | |
1163 | sense_sz = sizeof(pkt->data); | |
1164 | } else { | |
1165 | sense_sz = sp->request_sense_length; | |
1166 | } | |
1167 | ||
1168 | /* Move sense data. */ | |
1169 | memcpy(sp->request_sense_ptr, pkt->data, sense_sz); | |
1170 | DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); | |
1171 | ||
1172 | sp->request_sense_ptr += sense_sz; | |
1173 | sp->request_sense_length -= sense_sz; | |
1174 | ||
1175 | /* Place command on done queue. */ | |
1176 | if (sp->request_sense_length == 0) { | |
1da177e4 | 1177 | ha->status_srb = NULL; |
f4f051eb | 1178 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
1179 | } |
1180 | } | |
1181 | } | |
1182 | ||
1183 | /** | |
1184 | * qla2x00_error_entry() - Process an error entry. | |
1185 | * @ha: SCSI driver HA context | |
1186 | * @pkt: Entry pointer | |
1187 | */ | |
1188 | static void | |
1189 | qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) | |
1190 | { | |
1191 | srb_t *sp; | |
1192 | ||
1193 | #if defined(QL_DEBUG_LEVEL_2) | |
1194 | if (pkt->entry_status & RF_INV_E_ORDER) | |
1195 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); | |
1196 | else if (pkt->entry_status & RF_INV_E_COUNT) | |
1197 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); | |
1198 | else if (pkt->entry_status & RF_INV_E_PARAM) | |
1199 | qla_printk(KERN_ERR, ha, | |
1200 | "%s: Invalid Entry Parameter\n", __func__); | |
1201 | else if (pkt->entry_status & RF_INV_E_TYPE) | |
1202 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); | |
1203 | else if (pkt->entry_status & RF_BUSY) | |
1204 | qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); | |
1205 | else | |
1206 | qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); | |
1207 | #endif | |
1208 | ||
1209 | /* Validate handle. */ | |
1210 | if (pkt->handle < MAX_OUTSTANDING_COMMANDS) | |
1211 | sp = ha->outstanding_cmds[pkt->handle]; | |
1212 | else | |
1213 | sp = NULL; | |
1214 | ||
1215 | if (sp) { | |
1216 | /* Free outstanding command slot. */ | |
1217 | ha->outstanding_cmds[pkt->handle] = NULL; | |
354d6b21 | 1218 | |
1da177e4 LT |
1219 | /* Bad payload or header */ |
1220 | if (pkt->entry_status & | |
1221 | (RF_INV_E_ORDER | RF_INV_E_COUNT | | |
1222 | RF_INV_E_PARAM | RF_INV_E_TYPE)) { | |
1223 | sp->cmd->result = DID_ERROR << 16; | |
1224 | } else if (pkt->entry_status & RF_BUSY) { | |
1225 | sp->cmd->result = DID_BUS_BUSY << 16; | |
1226 | } else { | |
1227 | sp->cmd->result = DID_ERROR << 16; | |
1228 | } | |
f4f051eb | 1229 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
1230 | |
1231 | } else if (pkt->entry_type == COMMAND_A64_TYPE || | |
1232 | pkt->entry_type == COMMAND_TYPE) { | |
1233 | DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", | |
1234 | ha->host_no)); | |
1235 | qla_printk(KERN_WARNING, ha, | |
1236 | "Error entry - invalid handle\n"); | |
1237 | ||
1238 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
1239 | if (ha->dpc_wait && !ha->dpc_active) | |
1240 | up(ha->dpc_wait); | |
1241 | } | |
1242 | } | |
1243 | ||
1244 | /** | |
1245 | * qla2x00_ms_entry() - Process a Management Server entry. | |
1246 | * @ha: SCSI driver HA context | |
1247 | * @index: Response queue out pointer | |
1248 | */ | |
1249 | static void | |
1250 | qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) | |
1251 | { | |
1252 | srb_t *sp; | |
1253 | ||
1254 | DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n", | |
1255 | __func__, ha->host_no, pkt, pkt->handle1)); | |
1256 | ||
1257 | /* Validate handle. */ | |
1258 | if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS) | |
1259 | sp = ha->outstanding_cmds[pkt->handle1]; | |
1260 | else | |
1261 | sp = NULL; | |
1262 | ||
1263 | if (sp == NULL) { | |
1264 | DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n", | |
1265 | ha->host_no)); | |
1266 | qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n"); | |
1267 | ||
1268 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
1269 | return; | |
1270 | } | |
1271 | ||
1272 | CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status); | |
1273 | CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status; | |
1274 | ||
1275 | /* Free outstanding command slot. */ | |
1276 | ha->outstanding_cmds[pkt->handle1] = NULL; | |
1277 | ||
f4f051eb | 1278 | qla2x00_sp_compl(ha, sp); |
1da177e4 | 1279 | } |