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Commit | Line | Data |
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1da177e4 | 1 | /* |
fa90c54f AV |
2 | * QLogic Fibre Channel HBA Driver |
3 | * Copyright (c) 2003-2005 QLogic Corporation | |
1da177e4 | 4 | * |
fa90c54f | 5 | * See LICENSE.qla2xxx for copyright and licensing details. |
1da177e4 LT |
6 | */ |
7 | #include "qla_def.h" | |
8 | ||
df7baa50 AV |
9 | #include <scsi/scsi_tcq.h> |
10 | ||
1da177e4 | 11 | static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); |
9a853f71 | 12 | static void qla2x00_async_event(scsi_qla_host_t *, uint16_t *); |
1da177e4 | 13 | static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t); |
9a853f71 | 14 | static void qla2x00_status_entry(scsi_qla_host_t *, void *); |
1da177e4 LT |
15 | static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *); |
16 | static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *); | |
17 | static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *); | |
18 | ||
9a853f71 AV |
19 | static void qla24xx_ms_entry(scsi_qla_host_t *, struct ct_entry_24xx *); |
20 | ||
1da177e4 LT |
21 | /** |
22 | * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. | |
23 | * @irq: | |
24 | * @dev_id: SCSI driver HA context | |
1da177e4 LT |
25 | * |
26 | * Called by system whenever the host adapter generates an interrupt. | |
27 | * | |
28 | * Returns handled flag. | |
29 | */ | |
30 | irqreturn_t | |
7d12e780 | 31 | qla2100_intr_handler(int irq, void *dev_id) |
1da177e4 LT |
32 | { |
33 | scsi_qla_host_t *ha; | |
3d71644c | 34 | struct device_reg_2xxx __iomem *reg; |
1da177e4 LT |
35 | int status; |
36 | unsigned long flags; | |
37 | unsigned long iter; | |
9a853f71 | 38 | uint16_t mb[4]; |
1da177e4 LT |
39 | |
40 | ha = (scsi_qla_host_t *) dev_id; | |
41 | if (!ha) { | |
42 | printk(KERN_INFO | |
43 | "%s(): NULL host pointer\n", __func__); | |
44 | return (IRQ_NONE); | |
45 | } | |
46 | ||
3d71644c | 47 | reg = &ha->iobase->isp; |
1da177e4 LT |
48 | status = 0; |
49 | ||
50 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
51 | for (iter = 50; iter--; ) { | |
52 | if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) | |
53 | break; | |
54 | ||
55 | if (RD_REG_WORD(®->semaphore) & BIT_0) { | |
56 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
57 | RD_REG_WORD(®->hccr); | |
58 | ||
59 | /* Get mailbox data. */ | |
9a853f71 AV |
60 | mb[0] = RD_MAILBOX_REG(ha, reg, 0); |
61 | if (mb[0] > 0x3fff && mb[0] < 0x8000) { | |
62 | qla2x00_mbx_completion(ha, mb[0]); | |
1da177e4 | 63 | status |= MBX_INTERRUPT; |
9a853f71 AV |
64 | } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { |
65 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
66 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
67 | mb[3] = RD_MAILBOX_REG(ha, reg, 3); | |
68 | qla2x00_async_event(ha, mb); | |
1da177e4 LT |
69 | } else { |
70 | /*EMPTY*/ | |
71 | DEBUG2(printk("scsi(%ld): Unrecognized " | |
9a853f71 AV |
72 | "interrupt type (%d).\n", |
73 | ha->host_no, mb[0])); | |
1da177e4 LT |
74 | } |
75 | /* Release mailbox registers. */ | |
76 | WRT_REG_WORD(®->semaphore, 0); | |
77 | RD_REG_WORD(®->semaphore); | |
78 | } else { | |
79 | qla2x00_process_response_queue(ha); | |
80 | ||
81 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
82 | RD_REG_WORD(®->hccr); | |
83 | } | |
84 | } | |
85 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
86 | ||
1da177e4 LT |
87 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && |
88 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
1da177e4 LT |
89 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
90 | up(&ha->mbx_intr_sem); | |
1da177e4 LT |
91 | } |
92 | ||
1da177e4 LT |
93 | return (IRQ_HANDLED); |
94 | } | |
95 | ||
96 | /** | |
97 | * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. | |
98 | * @irq: | |
99 | * @dev_id: SCSI driver HA context | |
1da177e4 LT |
100 | * |
101 | * Called by system whenever the host adapter generates an interrupt. | |
102 | * | |
103 | * Returns handled flag. | |
104 | */ | |
105 | irqreturn_t | |
7d12e780 | 106 | qla2300_intr_handler(int irq, void *dev_id) |
1da177e4 LT |
107 | { |
108 | scsi_qla_host_t *ha; | |
3d71644c | 109 | struct device_reg_2xxx __iomem *reg; |
1da177e4 LT |
110 | int status; |
111 | unsigned long flags; | |
112 | unsigned long iter; | |
113 | uint32_t stat; | |
1da177e4 | 114 | uint16_t hccr; |
9a853f71 | 115 | uint16_t mb[4]; |
1da177e4 LT |
116 | |
117 | ha = (scsi_qla_host_t *) dev_id; | |
118 | if (!ha) { | |
119 | printk(KERN_INFO | |
120 | "%s(): NULL host pointer\n", __func__); | |
121 | return (IRQ_NONE); | |
122 | } | |
123 | ||
3d71644c | 124 | reg = &ha->iobase->isp; |
1da177e4 LT |
125 | status = 0; |
126 | ||
127 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
128 | for (iter = 50; iter--; ) { | |
129 | stat = RD_REG_DWORD(®->u.isp2300.host_status); | |
130 | if (stat & HSR_RISC_PAUSED) { | |
131 | hccr = RD_REG_WORD(®->hccr); | |
132 | if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) | |
07f31805 AV |
133 | qla_printk(KERN_INFO, ha, "Parity error -- " |
134 | "HCCR=%x, Dumping firmware!\n", hccr); | |
1da177e4 | 135 | else |
07f31805 AV |
136 | qla_printk(KERN_INFO, ha, "RISC paused -- " |
137 | "HCCR=%x, Dumping firmware!\n", hccr); | |
1da177e4 LT |
138 | |
139 | /* | |
140 | * Issue a "HARD" reset in order for the RISC | |
141 | * interrupt bit to be cleared. Schedule a big | |
142 | * hammmer to get out of the RISC PAUSED state. | |
143 | */ | |
144 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
145 | RD_REG_WORD(®->hccr); | |
07f31805 AV |
146 | |
147 | ha->isp_ops.fw_dump(ha, 1); | |
1da177e4 LT |
148 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
149 | break; | |
150 | } else if ((stat & HSR_RISC_INT) == 0) | |
151 | break; | |
152 | ||
1da177e4 | 153 | switch (stat & 0xff) { |
1da177e4 LT |
154 | case 0x1: |
155 | case 0x2: | |
156 | case 0x10: | |
157 | case 0x11: | |
9a853f71 | 158 | qla2x00_mbx_completion(ha, MSW(stat)); |
1da177e4 LT |
159 | status |= MBX_INTERRUPT; |
160 | ||
161 | /* Release mailbox registers. */ | |
162 | WRT_REG_WORD(®->semaphore, 0); | |
163 | break; | |
164 | case 0x12: | |
9a853f71 AV |
165 | mb[0] = MSW(stat); |
166 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
167 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
168 | mb[3] = RD_MAILBOX_REG(ha, reg, 3); | |
169 | qla2x00_async_event(ha, mb); | |
170 | break; | |
171 | case 0x13: | |
172 | qla2x00_process_response_queue(ha); | |
1da177e4 LT |
173 | break; |
174 | case 0x15: | |
9a853f71 AV |
175 | mb[0] = MBA_CMPLT_1_16BIT; |
176 | mb[1] = MSW(stat); | |
177 | qla2x00_async_event(ha, mb); | |
1da177e4 LT |
178 | break; |
179 | case 0x16: | |
9a853f71 AV |
180 | mb[0] = MBA_SCSI_COMPLETION; |
181 | mb[1] = MSW(stat); | |
182 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
183 | qla2x00_async_event(ha, mb); | |
1da177e4 LT |
184 | break; |
185 | default: | |
186 | DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " | |
9a853f71 | 187 | "(%d).\n", |
1da177e4 LT |
188 | ha->host_no, stat & 0xff)); |
189 | break; | |
190 | } | |
191 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
192 | RD_REG_WORD_RELAXED(®->hccr); | |
193 | } | |
194 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
195 | ||
1da177e4 LT |
196 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && |
197 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
1da177e4 LT |
198 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
199 | up(&ha->mbx_intr_sem); | |
1da177e4 LT |
200 | } |
201 | ||
1da177e4 LT |
202 | return (IRQ_HANDLED); |
203 | } | |
204 | ||
205 | /** | |
206 | * qla2x00_mbx_completion() - Process mailbox command completions. | |
207 | * @ha: SCSI driver HA context | |
208 | * @mb0: Mailbox0 register | |
209 | */ | |
210 | static void | |
211 | qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) | |
212 | { | |
213 | uint16_t cnt; | |
214 | uint16_t __iomem *wptr; | |
3d71644c | 215 | struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; |
1da177e4 LT |
216 | |
217 | /* Load return mailbox registers. */ | |
218 | ha->flags.mbox_int = 1; | |
219 | ha->mailbox_out[0] = mb0; | |
220 | wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); | |
221 | ||
222 | for (cnt = 1; cnt < ha->mbx_count; cnt++) { | |
fa2a1ce5 | 223 | if (IS_QLA2200(ha) && cnt == 8) |
1da177e4 LT |
224 | wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); |
225 | if (cnt == 4 || cnt == 5) | |
226 | ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); | |
227 | else | |
228 | ha->mailbox_out[cnt] = RD_REG_WORD(wptr); | |
fa2a1ce5 | 229 | |
1da177e4 LT |
230 | wptr++; |
231 | } | |
232 | ||
233 | if (ha->mcp) { | |
234 | DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", | |
235 | __func__, ha->host_no, ha->mcp->mb[0])); | |
236 | } else { | |
237 | DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", | |
238 | __func__, ha->host_no)); | |
239 | } | |
240 | } | |
241 | ||
242 | /** | |
243 | * qla2x00_async_event() - Process aynchronous events. | |
244 | * @ha: SCSI driver HA context | |
9a853f71 | 245 | * @mb: Mailbox registers (0 - 3) |
1da177e4 LT |
246 | */ |
247 | static void | |
9a853f71 | 248 | qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) |
1da177e4 | 249 | { |
9a853f71 AV |
250 | #define LS_UNKNOWN 2 |
251 | static char *link_speeds[5] = { "1", "2", "?", "4", "10" }; | |
1da177e4 | 252 | char *link_speed; |
1da177e4 LT |
253 | uint16_t handle_cnt; |
254 | uint16_t cnt; | |
255 | uint32_t handles[5]; | |
3d71644c | 256 | struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; |
1da177e4 LT |
257 | uint32_t rscn_entry, host_pid; |
258 | uint8_t rscn_queue_index; | |
259 | ||
260 | /* Setup to process RIO completion. */ | |
261 | handle_cnt = 0; | |
1da177e4 LT |
262 | switch (mb[0]) { |
263 | case MBA_SCSI_COMPLETION: | |
9a853f71 | 264 | handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); |
1da177e4 LT |
265 | handle_cnt = 1; |
266 | break; | |
267 | case MBA_CMPLT_1_16BIT: | |
9a853f71 | 268 | handles[0] = mb[1]; |
1da177e4 LT |
269 | handle_cnt = 1; |
270 | mb[0] = MBA_SCSI_COMPLETION; | |
271 | break; | |
272 | case MBA_CMPLT_2_16BIT: | |
9a853f71 AV |
273 | handles[0] = mb[1]; |
274 | handles[1] = mb[2]; | |
1da177e4 LT |
275 | handle_cnt = 2; |
276 | mb[0] = MBA_SCSI_COMPLETION; | |
277 | break; | |
278 | case MBA_CMPLT_3_16BIT: | |
9a853f71 AV |
279 | handles[0] = mb[1]; |
280 | handles[1] = mb[2]; | |
281 | handles[2] = mb[3]; | |
1da177e4 LT |
282 | handle_cnt = 3; |
283 | mb[0] = MBA_SCSI_COMPLETION; | |
284 | break; | |
285 | case MBA_CMPLT_4_16BIT: | |
9a853f71 AV |
286 | handles[0] = mb[1]; |
287 | handles[1] = mb[2]; | |
288 | handles[2] = mb[3]; | |
1da177e4 LT |
289 | handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); |
290 | handle_cnt = 4; | |
291 | mb[0] = MBA_SCSI_COMPLETION; | |
292 | break; | |
293 | case MBA_CMPLT_5_16BIT: | |
9a853f71 AV |
294 | handles[0] = mb[1]; |
295 | handles[1] = mb[2]; | |
296 | handles[2] = mb[3]; | |
1da177e4 LT |
297 | handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); |
298 | handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); | |
299 | handle_cnt = 5; | |
300 | mb[0] = MBA_SCSI_COMPLETION; | |
301 | break; | |
302 | case MBA_CMPLT_2_32BIT: | |
9a853f71 | 303 | handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); |
1da177e4 LT |
304 | handles[1] = le32_to_cpu( |
305 | ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | | |
306 | RD_MAILBOX_REG(ha, reg, 6)); | |
307 | handle_cnt = 2; | |
308 | mb[0] = MBA_SCSI_COMPLETION; | |
309 | break; | |
310 | default: | |
311 | break; | |
312 | } | |
313 | ||
314 | switch (mb[0]) { | |
315 | case MBA_SCSI_COMPLETION: /* Fast Post */ | |
316 | if (!ha->flags.online) | |
317 | break; | |
318 | ||
319 | for (cnt = 0; cnt < handle_cnt; cnt++) | |
320 | qla2x00_process_completed_request(ha, handles[cnt]); | |
321 | break; | |
322 | ||
323 | case MBA_RESET: /* Reset */ | |
324 | DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no)); | |
325 | ||
326 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
327 | break; | |
328 | ||
329 | case MBA_SYSTEM_ERR: /* System Error */ | |
330 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
331 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
332 | mb[3] = RD_MAILBOX_REG(ha, reg, 3); | |
333 | ||
334 | qla_printk(KERN_INFO, ha, | |
335 | "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n", | |
336 | mb[1], mb[2], mb[3]); | |
337 | ||
abbd8870 | 338 | ha->isp_ops.fw_dump(ha, 1); |
1da177e4 | 339 | |
044cc6c8 | 340 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { |
9a853f71 AV |
341 | if (mb[1] == 0 && mb[2] == 0) { |
342 | qla_printk(KERN_ERR, ha, | |
343 | "Unrecoverable Hardware Error: adapter " | |
344 | "marked OFFLINE!\n"); | |
345 | ha->flags.online = 0; | |
346 | } else | |
347 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
348 | } else if (mb[1] == 0) { | |
1da177e4 LT |
349 | qla_printk(KERN_INFO, ha, |
350 | "Unrecoverable Hardware Error: adapter marked " | |
351 | "OFFLINE!\n"); | |
352 | ha->flags.online = 0; | |
353 | } else | |
354 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
355 | break; | |
356 | ||
357 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
358 | DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n", | |
359 | ha->host_no)); | |
360 | qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n"); | |
361 | ||
362 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
363 | break; | |
364 | ||
365 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ | |
366 | DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", | |
367 | ha->host_no)); | |
368 | qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); | |
369 | ||
370 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
371 | break; | |
372 | ||
373 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ | |
374 | DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", | |
375 | ha->host_no)); | |
376 | break; | |
377 | ||
378 | case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ | |
1da177e4 LT |
379 | DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no, |
380 | mb[1])); | |
381 | qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]); | |
382 | ||
383 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
384 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
385 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
d97994dc | 386 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
387 | } |
388 | ||
389 | set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); | |
390 | ||
391 | ha->flags.management_server_logged_in = 0; | |
1da177e4 LT |
392 | break; |
393 | ||
394 | case MBA_LOOP_UP: /* Loop Up Event */ | |
1da177e4 LT |
395 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) { |
396 | link_speed = link_speeds[0]; | |
d8b45213 | 397 | ha->link_data_rate = PORT_SPEED_1GB; |
1da177e4 | 398 | } else { |
9a853f71 | 399 | link_speed = link_speeds[LS_UNKNOWN]; |
1da177e4 LT |
400 | if (mb[1] < 5) |
401 | link_speed = link_speeds[mb[1]]; | |
402 | ha->link_data_rate = mb[1]; | |
403 | } | |
404 | ||
405 | DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", | |
406 | ha->host_no, link_speed)); | |
407 | qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", | |
408 | link_speed); | |
409 | ||
410 | ha->flags.management_server_logged_in = 0; | |
1da177e4 LT |
411 | break; |
412 | ||
413 | case MBA_LOOP_DOWN: /* Loop Down Event */ | |
9a853f71 AV |
414 | DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n", |
415 | ha->host_no, mb[1])); | |
416 | qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]); | |
1da177e4 LT |
417 | |
418 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
419 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
420 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
421 | ha->device_flags |= DFLG_NO_CABLE; | |
d97994dc | 422 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
423 | } |
424 | ||
425 | ha->flags.management_server_logged_in = 0; | |
d8b45213 | 426 | ha->link_data_rate = PORT_SPEED_UNKNOWN; |
cca5335c AV |
427 | if (ql2xfdmienable) |
428 | set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); | |
1da177e4 LT |
429 | break; |
430 | ||
431 | case MBA_LIP_RESET: /* LIP reset occurred */ | |
1da177e4 LT |
432 | DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", |
433 | ha->host_no, mb[1])); | |
434 | qla_printk(KERN_INFO, ha, | |
435 | "LIP reset occured (%x).\n", mb[1]); | |
436 | ||
437 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
438 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
439 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
d97994dc | 440 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
441 | } |
442 | ||
443 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
444 | ||
445 | ha->operating_mode = LOOP; | |
446 | ha->flags.management_server_logged_in = 0; | |
1da177e4 LT |
447 | break; |
448 | ||
449 | case MBA_POINT_TO_POINT: /* Point-to-Point */ | |
450 | if (IS_QLA2100(ha)) | |
451 | break; | |
452 | ||
453 | DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n", | |
454 | ha->host_no)); | |
455 | ||
456 | /* | |
457 | * Until there's a transition from loop down to loop up, treat | |
458 | * this as loop down only. | |
459 | */ | |
460 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
461 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
462 | if (!atomic_read(&ha->loop_down_timer)) | |
463 | atomic_set(&ha->loop_down_timer, | |
464 | LOOP_DOWN_TIME); | |
d97994dc | 465 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
466 | } |
467 | ||
468 | if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { | |
469 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
470 | } | |
471 | set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); | |
4346b149 AV |
472 | |
473 | ha->flags.gpsc_supported = 1; | |
1da177e4 LT |
474 | break; |
475 | ||
476 | case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ | |
477 | if (IS_QLA2100(ha)) | |
478 | break; | |
479 | ||
1da177e4 LT |
480 | DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " |
481 | "received.\n", | |
482 | ha->host_no)); | |
483 | qla_printk(KERN_INFO, ha, | |
484 | "Configuration change detected: value=%x.\n", mb[1]); | |
485 | ||
486 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
fa2a1ce5 | 487 | atomic_set(&ha->loop_state, LOOP_DOWN); |
1da177e4 LT |
488 | if (!atomic_read(&ha->loop_down_timer)) |
489 | atomic_set(&ha->loop_down_timer, | |
490 | LOOP_DOWN_TIME); | |
d97994dc | 491 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
492 | } |
493 | ||
494 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
495 | set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
496 | break; | |
497 | ||
498 | case MBA_PORT_UPDATE: /* Port database update */ | |
1da177e4 LT |
499 | /* |
500 | * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET | |
501 | * event etc. earlier indicating loop is down) then process | |
502 | * it. Otherwise ignore it and Wait for RSCN to come in. | |
503 | */ | |
504 | atomic_set(&ha->loop_down_timer, 0); | |
505 | if (atomic_read(&ha->loop_state) != LOOP_DOWN && | |
506 | atomic_read(&ha->loop_state) != LOOP_DEAD) { | |
507 | DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " | |
9a853f71 AV |
508 | "ignored %04x/%04x/%04x.\n", ha->host_no, mb[1], |
509 | mb[2], mb[3])); | |
1da177e4 LT |
510 | break; |
511 | } | |
512 | ||
513 | DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", | |
514 | ha->host_no)); | |
515 | DEBUG(printk(KERN_INFO | |
9a853f71 AV |
516 | "scsi(%ld): Port database changed %04x %04x %04x.\n", |
517 | ha->host_no, mb[1], mb[2], mb[3])); | |
1da177e4 LT |
518 | |
519 | /* | |
520 | * Mark all devices as missing so we will login again. | |
521 | */ | |
522 | atomic_set(&ha->loop_state, LOOP_UP); | |
523 | ||
d97994dc | 524 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
525 | |
526 | ha->flags.rscn_queue_overflow = 1; | |
527 | ||
528 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
529 | set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
1da177e4 LT |
530 | break; |
531 | ||
532 | case MBA_RSCN_UPDATE: /* State Change Registration */ | |
1da177e4 LT |
533 | DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", |
534 | ha->host_no)); | |
535 | DEBUG(printk(KERN_INFO | |
536 | "scsi(%ld): RSCN database changed -- %04x %04x.\n", | |
537 | ha->host_no, mb[1], mb[2])); | |
538 | ||
539 | rscn_entry = (mb[1] << 16) | mb[2]; | |
540 | host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) | | |
541 | ha->d_id.b.al_pa; | |
542 | if (rscn_entry == host_pid) { | |
543 | DEBUG(printk(KERN_INFO | |
544 | "scsi(%ld): Ignoring RSCN update to local host " | |
545 | "port ID (%06x)\n", | |
546 | ha->host_no, host_pid)); | |
547 | break; | |
548 | } | |
549 | ||
550 | rscn_queue_index = ha->rscn_in_ptr + 1; | |
551 | if (rscn_queue_index == MAX_RSCN_COUNT) | |
552 | rscn_queue_index = 0; | |
553 | if (rscn_queue_index != ha->rscn_out_ptr) { | |
554 | ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry; | |
555 | ha->rscn_in_ptr = rscn_queue_index; | |
556 | } else { | |
557 | ha->flags.rscn_queue_overflow = 1; | |
558 | } | |
559 | ||
560 | atomic_set(&ha->loop_state, LOOP_UPDATE); | |
561 | atomic_set(&ha->loop_down_timer, 0); | |
562 | ha->flags.management_server_logged_in = 0; | |
563 | ||
564 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
565 | set_bit(RSCN_UPDATE, &ha->dpc_flags); | |
1da177e4 LT |
566 | break; |
567 | ||
568 | /* case MBA_RIO_RESPONSE: */ | |
569 | case MBA_ZIO_RESPONSE: | |
570 | DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n", | |
571 | ha->host_no)); | |
572 | DEBUG(printk(KERN_INFO | |
573 | "scsi(%ld): [R|Z]IO update completion.\n", | |
574 | ha->host_no)); | |
575 | ||
044cc6c8 | 576 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) |
4fdfefe5 AV |
577 | qla24xx_process_response_queue(ha); |
578 | else | |
579 | qla2x00_process_response_queue(ha); | |
1da177e4 | 580 | break; |
9a853f71 AV |
581 | |
582 | case MBA_DISCARD_RND_FRAME: | |
583 | DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " | |
584 | "%04x.\n", ha->host_no, mb[1], mb[2], mb[3])); | |
585 | break; | |
45ebeb56 AV |
586 | |
587 | case MBA_TRACE_NOTIFICATION: | |
588 | DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", | |
589 | ha->host_no, mb[1], mb[2])); | |
590 | break; | |
1da177e4 LT |
591 | } |
592 | } | |
593 | ||
df7baa50 AV |
594 | static void |
595 | qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data) | |
596 | { | |
597 | fc_port_t *fcport = data; | |
598 | ||
599 | if (fcport->ha->max_q_depth <= sdev->queue_depth) | |
600 | return; | |
601 | ||
602 | if (sdev->ordered_tags) | |
603 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, | |
604 | sdev->queue_depth + 1); | |
605 | else | |
606 | scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, | |
607 | sdev->queue_depth + 1); | |
608 | ||
609 | fcport->last_ramp_up = jiffies; | |
610 | ||
611 | DEBUG2(qla_printk(KERN_INFO, fcport->ha, | |
612 | "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n", | |
613 | fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, | |
614 | sdev->queue_depth)); | |
615 | } | |
616 | ||
617 | static void | |
618 | qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data) | |
619 | { | |
620 | fc_port_t *fcport = data; | |
621 | ||
622 | if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1)) | |
623 | return; | |
624 | ||
625 | DEBUG2(qla_printk(KERN_INFO, fcport->ha, | |
626 | "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n", | |
627 | fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, | |
628 | sdev->queue_depth)); | |
629 | } | |
630 | ||
631 | static inline void | |
632 | qla2x00_ramp_up_queue_depth(scsi_qla_host_t *ha, srb_t *sp) | |
633 | { | |
634 | fc_port_t *fcport; | |
635 | struct scsi_device *sdev; | |
636 | ||
637 | sdev = sp->cmd->device; | |
638 | if (sdev->queue_depth >= ha->max_q_depth) | |
639 | return; | |
640 | ||
641 | fcport = sp->fcport; | |
642 | if (time_before(jiffies, | |
643 | fcport->last_ramp_up + ql2xqfullrampup * HZ)) | |
644 | return; | |
645 | if (time_before(jiffies, | |
646 | fcport->last_queue_full + ql2xqfullrampup * HZ)) | |
647 | return; | |
648 | ||
df7baa50 AV |
649 | starget_for_each_device(sdev->sdev_target, fcport, |
650 | qla2x00_adjust_sdev_qdepth_up); | |
df7baa50 AV |
651 | } |
652 | ||
1da177e4 LT |
653 | /** |
654 | * qla2x00_process_completed_request() - Process a Fast Post response. | |
655 | * @ha: SCSI driver HA context | |
656 | * @index: SRB index | |
657 | */ | |
658 | static void | |
659 | qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) | |
660 | { | |
661 | srb_t *sp; | |
662 | ||
663 | /* Validate handle. */ | |
664 | if (index >= MAX_OUTSTANDING_COMMANDS) { | |
665 | DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", | |
666 | ha->host_no, index)); | |
667 | qla_printk(KERN_WARNING, ha, | |
668 | "Invalid SCSI completion handle %d.\n", index); | |
669 | ||
670 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
671 | return; | |
672 | } | |
673 | ||
674 | sp = ha->outstanding_cmds[index]; | |
675 | if (sp) { | |
676 | /* Free outstanding command slot. */ | |
677 | ha->outstanding_cmds[index] = NULL; | |
678 | ||
1da177e4 LT |
679 | CMD_COMPL_STATUS(sp->cmd) = 0L; |
680 | CMD_SCSI_STATUS(sp->cmd) = 0L; | |
681 | ||
682 | /* Save ISP completion status */ | |
683 | sp->cmd->result = DID_OK << 16; | |
df7baa50 AV |
684 | |
685 | qla2x00_ramp_up_queue_depth(ha, sp); | |
f4f051eb | 686 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
687 | } else { |
688 | DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n", | |
689 | ha->host_no)); | |
690 | qla_printk(KERN_WARNING, ha, | |
691 | "Invalid ISP SCSI completion handle\n"); | |
692 | ||
693 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
694 | } | |
695 | } | |
696 | ||
697 | /** | |
698 | * qla2x00_process_response_queue() - Process response queue entries. | |
699 | * @ha: SCSI driver HA context | |
700 | */ | |
701 | void | |
702 | qla2x00_process_response_queue(struct scsi_qla_host *ha) | |
703 | { | |
3d71644c | 704 | struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; |
1da177e4 LT |
705 | sts_entry_t *pkt; |
706 | uint16_t handle_cnt; | |
707 | uint16_t cnt; | |
708 | ||
709 | if (!ha->flags.online) | |
710 | return; | |
711 | ||
712 | while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { | |
713 | pkt = (sts_entry_t *)ha->response_ring_ptr; | |
714 | ||
715 | ha->rsp_ring_index++; | |
716 | if (ha->rsp_ring_index == ha->response_q_length) { | |
717 | ha->rsp_ring_index = 0; | |
718 | ha->response_ring_ptr = ha->response_ring; | |
719 | } else { | |
720 | ha->response_ring_ptr++; | |
721 | } | |
722 | ||
723 | if (pkt->entry_status != 0) { | |
724 | DEBUG3(printk(KERN_INFO | |
725 | "scsi(%ld): Process error entry.\n", ha->host_no)); | |
726 | ||
727 | qla2x00_error_entry(ha, pkt); | |
728 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
729 | wmb(); | |
730 | continue; | |
731 | } | |
732 | ||
733 | switch (pkt->entry_type) { | |
734 | case STATUS_TYPE: | |
735 | qla2x00_status_entry(ha, pkt); | |
736 | break; | |
737 | case STATUS_TYPE_21: | |
738 | handle_cnt = ((sts21_entry_t *)pkt)->handle_count; | |
739 | for (cnt = 0; cnt < handle_cnt; cnt++) { | |
740 | qla2x00_process_completed_request(ha, | |
741 | ((sts21_entry_t *)pkt)->handle[cnt]); | |
742 | } | |
743 | break; | |
744 | case STATUS_TYPE_22: | |
745 | handle_cnt = ((sts22_entry_t *)pkt)->handle_count; | |
746 | for (cnt = 0; cnt < handle_cnt; cnt++) { | |
747 | qla2x00_process_completed_request(ha, | |
748 | ((sts22_entry_t *)pkt)->handle[cnt]); | |
749 | } | |
750 | break; | |
751 | case STATUS_CONT_TYPE: | |
752 | qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); | |
753 | break; | |
754 | case MS_IOCB_TYPE: | |
755 | qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt); | |
756 | break; | |
1da177e4 LT |
757 | default: |
758 | /* Type Not Supported. */ | |
759 | DEBUG4(printk(KERN_WARNING | |
760 | "scsi(%ld): Received unknown response pkt type %x " | |
761 | "entry status=%x.\n", | |
762 | ha->host_no, pkt->entry_type, pkt->entry_status)); | |
763 | break; | |
764 | } | |
765 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
766 | wmb(); | |
767 | } | |
768 | ||
769 | /* Adjust ring index */ | |
770 | WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index); | |
771 | } | |
772 | ||
773 | /** | |
774 | * qla2x00_status_entry() - Process a Status IOCB entry. | |
775 | * @ha: SCSI driver HA context | |
776 | * @pkt: Entry pointer | |
777 | */ | |
778 | static void | |
9a853f71 | 779 | qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) |
1da177e4 | 780 | { |
1da177e4 | 781 | srb_t *sp; |
1da177e4 LT |
782 | fc_port_t *fcport; |
783 | struct scsi_cmnd *cp; | |
9a853f71 AV |
784 | sts_entry_t *sts; |
785 | struct sts_entry_24xx *sts24; | |
1da177e4 LT |
786 | uint16_t comp_status; |
787 | uint16_t scsi_status; | |
788 | uint8_t lscsi_status; | |
789 | int32_t resid; | |
ed17c71b | 790 | uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len; |
9a853f71 AV |
791 | uint8_t *rsp_info, *sense_data; |
792 | ||
793 | sts = (sts_entry_t *) pkt; | |
794 | sts24 = (struct sts_entry_24xx *) pkt; | |
044cc6c8 | 795 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { |
9a853f71 AV |
796 | comp_status = le16_to_cpu(sts24->comp_status); |
797 | scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; | |
798 | } else { | |
799 | comp_status = le16_to_cpu(sts->comp_status); | |
800 | scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; | |
801 | } | |
1da177e4 LT |
802 | |
803 | /* Fast path completion. */ | |
9a853f71 AV |
804 | if (comp_status == CS_COMPLETE && scsi_status == 0) { |
805 | qla2x00_process_completed_request(ha, sts->handle); | |
1da177e4 LT |
806 | |
807 | return; | |
808 | } | |
809 | ||
810 | /* Validate handle. */ | |
9a853f71 AV |
811 | if (sts->handle < MAX_OUTSTANDING_COMMANDS) { |
812 | sp = ha->outstanding_cmds[sts->handle]; | |
813 | ha->outstanding_cmds[sts->handle] = NULL; | |
1da177e4 LT |
814 | } else |
815 | sp = NULL; | |
816 | ||
817 | if (sp == NULL) { | |
818 | DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n", | |
819 | ha->host_no)); | |
820 | qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n"); | |
821 | ||
822 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
39a11240 | 823 | qla2xxx_wake_dpc(ha); |
1da177e4 LT |
824 | return; |
825 | } | |
826 | cp = sp->cmd; | |
827 | if (cp == NULL) { | |
828 | DEBUG2(printk("scsi(%ld): Command already returned back to OS " | |
75bc4190 | 829 | "pkt->handle=%d sp=%p.\n", ha->host_no, sts->handle, sp)); |
1da177e4 LT |
830 | qla_printk(KERN_WARNING, ha, |
831 | "Command is NULL: already returned to OS (sp=%p)\n", sp); | |
832 | ||
833 | return; | |
834 | } | |
835 | ||
9a853f71 AV |
836 | lscsi_status = scsi_status & STATUS_MASK; |
837 | CMD_ENTRY_STATUS(cp) = sts->entry_status; | |
1da177e4 LT |
838 | CMD_COMPL_STATUS(cp) = comp_status; |
839 | CMD_SCSI_STATUS(cp) = scsi_status; | |
840 | ||
bdf79621 | 841 | fcport = sp->fcport; |
1da177e4 | 842 | |
ed17c71b | 843 | sense_len = rsp_info_len = resid_len = fw_resid_len = 0; |
044cc6c8 | 844 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { |
9a853f71 AV |
845 | sense_len = le32_to_cpu(sts24->sense_len); |
846 | rsp_info_len = le32_to_cpu(sts24->rsp_data_len); | |
847 | resid_len = le32_to_cpu(sts24->rsp_residual_count); | |
ed17c71b | 848 | fw_resid_len = le32_to_cpu(sts24->residual_len); |
9a853f71 AV |
849 | rsp_info = sts24->data; |
850 | sense_data = sts24->data; | |
851 | host_to_fcp_swap(sts24->data, sizeof(sts24->data)); | |
852 | } else { | |
853 | sense_len = le16_to_cpu(sts->req_sense_length); | |
854 | rsp_info_len = le16_to_cpu(sts->rsp_info_len); | |
855 | resid_len = le32_to_cpu(sts->residual_length); | |
856 | rsp_info = sts->rsp_info; | |
857 | sense_data = sts->req_sense_data; | |
858 | } | |
859 | ||
1da177e4 LT |
860 | /* Check for any FCP transport errors. */ |
861 | if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { | |
9a853f71 | 862 | /* Sense data lies beyond any FCP RESPONSE data. */ |
044cc6c8 | 863 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) |
9a853f71 AV |
864 | sense_data += rsp_info_len; |
865 | if (rsp_info_len > 3 && rsp_info[3]) { | |
1da177e4 LT |
866 | DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol " |
867 | "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..." | |
9a853f71 AV |
868 | "retrying command\n", ha->host_no, |
869 | cp->device->channel, cp->device->id, | |
870 | cp->device->lun, rsp_info_len, rsp_info[0], | |
871 | rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4], | |
872 | rsp_info[5], rsp_info[6], rsp_info[7])); | |
1da177e4 LT |
873 | |
874 | cp->result = DID_BUS_BUSY << 16; | |
f4f051eb | 875 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
876 | return; |
877 | } | |
878 | } | |
879 | ||
880 | /* | |
881 | * Based on Host and scsi status generate status code for Linux | |
882 | */ | |
883 | switch (comp_status) { | |
884 | case CS_COMPLETE: | |
df7baa50 | 885 | case CS_QUEUE_FULL: |
1da177e4 LT |
886 | if (scsi_status == 0) { |
887 | cp->result = DID_OK << 16; | |
888 | break; | |
889 | } | |
890 | if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { | |
9a853f71 | 891 | resid = resid_len; |
1da177e4 LT |
892 | cp->resid = resid; |
893 | CMD_RESID_LEN(cp) = resid; | |
0da69df1 AV |
894 | |
895 | if (!lscsi_status && | |
896 | ((unsigned)(cp->request_bufflen - resid) < | |
897 | cp->underflow)) { | |
898 | qla_printk(KERN_INFO, ha, | |
899 | "scsi(%ld:%d:%d:%d): Mid-layer underflow " | |
900 | "detected (%x of %x bytes)...returning " | |
901 | "error status.\n", ha->host_no, | |
902 | cp->device->channel, cp->device->id, | |
903 | cp->device->lun, resid, | |
904 | cp->request_bufflen); | |
905 | ||
906 | cp->result = DID_ERROR << 16; | |
907 | break; | |
908 | } | |
1da177e4 | 909 | } |
1da177e4 LT |
910 | cp->result = DID_OK << 16 | lscsi_status; |
911 | ||
df7baa50 AV |
912 | if (lscsi_status == SAM_STAT_TASK_SET_FULL) { |
913 | DEBUG2(printk(KERN_INFO | |
914 | "scsi(%ld): QUEUE FULL status detected " | |
915 | "0x%x-0x%x.\n", ha->host_no, comp_status, | |
916 | scsi_status)); | |
917 | ||
918 | /* Adjust queue depth for all luns on the port. */ | |
919 | fcport->last_queue_full = jiffies; | |
df7baa50 AV |
920 | starget_for_each_device(cp->device->sdev_target, |
921 | fcport, qla2x00_adjust_sdev_qdepth_down); | |
df7baa50 AV |
922 | break; |
923 | } | |
1da177e4 LT |
924 | if (lscsi_status != SS_CHECK_CONDITION) |
925 | break; | |
926 | ||
9a853f71 | 927 | /* Copy Sense Data into sense buffer. */ |
1da177e4 LT |
928 | memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer)); |
929 | ||
930 | if (!(scsi_status & SS_SENSE_LEN_VALID)) | |
931 | break; | |
932 | ||
9a853f71 AV |
933 | if (sense_len >= sizeof(cp->sense_buffer)) |
934 | sense_len = sizeof(cp->sense_buffer); | |
1da177e4 | 935 | |
9a853f71 AV |
936 | CMD_ACTUAL_SNSLEN(cp) = sense_len; |
937 | sp->request_sense_length = sense_len; | |
1da177e4 LT |
938 | sp->request_sense_ptr = cp->sense_buffer; |
939 | ||
940 | if (sp->request_sense_length > 32) | |
9a853f71 | 941 | sense_len = 32; |
1da177e4 | 942 | |
9a853f71 | 943 | memcpy(cp->sense_buffer, sense_data, sense_len); |
1da177e4 | 944 | |
9a853f71 AV |
945 | sp->request_sense_ptr += sense_len; |
946 | sp->request_sense_length -= sense_len; | |
1da177e4 LT |
947 | if (sp->request_sense_length != 0) |
948 | ha->status_srb = sp; | |
949 | ||
1da177e4 | 950 | DEBUG5(printk("%s(): Check condition Sense data, " |
9a853f71 AV |
951 | "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__, |
952 | ha->host_no, cp->device->channel, cp->device->id, | |
953 | cp->device->lun, cp, cp->serial_number)); | |
954 | if (sense_len) | |
1da177e4 LT |
955 | DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, |
956 | CMD_ACTUAL_SNSLEN(cp))); | |
957 | break; | |
958 | ||
959 | case CS_DATA_UNDERRUN: | |
9a853f71 | 960 | resid = resid_len; |
ed17c71b RA |
961 | /* Use F/W calculated residual length. */ |
962 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) | |
963 | resid = fw_resid_len; | |
964 | ||
1da177e4 LT |
965 | if (scsi_status & SS_RESIDUAL_UNDER) { |
966 | cp->resid = resid; | |
967 | CMD_RESID_LEN(cp) = resid; | |
e038a1be AV |
968 | } else { |
969 | DEBUG2(printk(KERN_INFO | |
970 | "scsi(%ld:%d:%d) UNDERRUN status detected " | |
ed17c71b RA |
971 | "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x " |
972 | "os_underflow=0x%x\n", ha->host_no, | |
973 | cp->device->id, cp->device->lun, comp_status, | |
974 | scsi_status, resid_len, resid, cp->cmnd[0], | |
975 | cp->underflow)); | |
e038a1be | 976 | |
1da177e4 LT |
977 | } |
978 | ||
979 | /* | |
fa2a1ce5 | 980 | * Check to see if SCSI Status is non zero. If so report SCSI |
1da177e4 LT |
981 | * Status. |
982 | */ | |
983 | if (lscsi_status != 0) { | |
1da177e4 LT |
984 | cp->result = DID_OK << 16 | lscsi_status; |
985 | ||
ffec28a3 AV |
986 | if (lscsi_status == SAM_STAT_TASK_SET_FULL) { |
987 | DEBUG2(printk(KERN_INFO | |
988 | "scsi(%ld): QUEUE FULL status detected " | |
989 | "0x%x-0x%x.\n", ha->host_no, comp_status, | |
990 | scsi_status)); | |
991 | ||
992 | /* | |
993 | * Adjust queue depth for all luns on the | |
994 | * port. | |
995 | */ | |
996 | fcport->last_queue_full = jiffies; | |
997 | starget_for_each_device( | |
998 | cp->device->sdev_target, fcport, | |
999 | qla2x00_adjust_sdev_qdepth_down); | |
1000 | break; | |
1001 | } | |
1da177e4 LT |
1002 | if (lscsi_status != SS_CHECK_CONDITION) |
1003 | break; | |
1004 | ||
1005 | /* Copy Sense Data into sense buffer */ | |
1006 | memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer)); | |
1007 | ||
1008 | if (!(scsi_status & SS_SENSE_LEN_VALID)) | |
1009 | break; | |
1010 | ||
9a853f71 AV |
1011 | if (sense_len >= sizeof(cp->sense_buffer)) |
1012 | sense_len = sizeof(cp->sense_buffer); | |
1da177e4 | 1013 | |
9a853f71 AV |
1014 | CMD_ACTUAL_SNSLEN(cp) = sense_len; |
1015 | sp->request_sense_length = sense_len; | |
1da177e4 LT |
1016 | sp->request_sense_ptr = cp->sense_buffer; |
1017 | ||
fa2a1ce5 | 1018 | if (sp->request_sense_length > 32) |
9a853f71 | 1019 | sense_len = 32; |
1da177e4 | 1020 | |
9a853f71 | 1021 | memcpy(cp->sense_buffer, sense_data, sense_len); |
1da177e4 | 1022 | |
9a853f71 AV |
1023 | sp->request_sense_ptr += sense_len; |
1024 | sp->request_sense_length -= sense_len; | |
1da177e4 LT |
1025 | if (sp->request_sense_length != 0) |
1026 | ha->status_srb = sp; | |
1027 | ||
1da177e4 LT |
1028 | DEBUG5(printk("%s(): Check condition Sense data, " |
1029 | "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", | |
9a853f71 AV |
1030 | __func__, ha->host_no, cp->device->channel, |
1031 | cp->device->id, cp->device->lun, cp, | |
1da177e4 | 1032 | cp->serial_number)); |
9a853f71 AV |
1033 | |
1034 | if (sense_len) | |
1da177e4 LT |
1035 | DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, |
1036 | CMD_ACTUAL_SNSLEN(cp))); | |
1037 | } else { | |
1038 | /* | |
1039 | * If RISC reports underrun and target does not report | |
1040 | * it then we must have a lost frame, so tell upper | |
1041 | * layer to retry it by reporting a bus busy. | |
1042 | */ | |
1043 | if (!(scsi_status & SS_RESIDUAL_UNDER)) { | |
1044 | DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped " | |
1045 | "frame(s) detected (%x of %x bytes)..." | |
9a853f71 AV |
1046 | "retrying command.\n", ha->host_no, |
1047 | cp->device->channel, cp->device->id, | |
1048 | cp->device->lun, resid, | |
1da177e4 LT |
1049 | cp->request_bufflen)); |
1050 | ||
1051 | cp->result = DID_BUS_BUSY << 16; | |
1da177e4 LT |
1052 | break; |
1053 | } | |
1054 | ||
1055 | /* Handle mid-layer underflow */ | |
1056 | if ((unsigned)(cp->request_bufflen - resid) < | |
1057 | cp->underflow) { | |
1058 | qla_printk(KERN_INFO, ha, | |
1059 | "scsi(%ld:%d:%d:%d): Mid-layer underflow " | |
1060 | "detected (%x of %x bytes)...returning " | |
9a853f71 AV |
1061 | "error status.\n", ha->host_no, |
1062 | cp->device->channel, cp->device->id, | |
1063 | cp->device->lun, resid, | |
1da177e4 LT |
1064 | cp->request_bufflen); |
1065 | ||
1066 | cp->result = DID_ERROR << 16; | |
1067 | break; | |
1068 | } | |
1069 | ||
1070 | /* Everybody online, looking good... */ | |
1071 | cp->result = DID_OK << 16; | |
1072 | } | |
1073 | break; | |
1074 | ||
1075 | case CS_DATA_OVERRUN: | |
1076 | DEBUG2(printk(KERN_INFO | |
1077 | "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n", | |
9a853f71 AV |
1078 | ha->host_no, cp->device->id, cp->device->lun, comp_status, |
1079 | scsi_status)); | |
1da177e4 LT |
1080 | DEBUG2(printk(KERN_INFO |
1081 | "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", | |
1082 | cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3], | |
1083 | cp->cmnd[4], cp->cmnd[5])); | |
1084 | DEBUG2(printk(KERN_INFO | |
1085 | "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR " | |
1086 | "status!\n", | |
9a853f71 | 1087 | cp->serial_number, cp->request_bufflen, resid_len)); |
1da177e4 LT |
1088 | |
1089 | cp->result = DID_ERROR << 16; | |
1090 | break; | |
1091 | ||
1092 | case CS_PORT_LOGGED_OUT: | |
1093 | case CS_PORT_CONFIG_CHG: | |
1094 | case CS_PORT_BUSY: | |
1095 | case CS_INCOMPLETE: | |
1096 | case CS_PORT_UNAVAILABLE: | |
1097 | /* | |
1098 | * If the port is in Target Down state, return all IOs for this | |
1099 | * Target with DID_NO_CONNECT ELSE Queue the IOs in the | |
1100 | * retry_queue. | |
1101 | */ | |
1da177e4 LT |
1102 | DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down " |
1103 | "pid=%ld, compl status=0x%x, port state=0x%x\n", | |
9a853f71 AV |
1104 | ha->host_no, cp->device->id, cp->device->lun, |
1105 | cp->serial_number, comp_status, | |
1da177e4 LT |
1106 | atomic_read(&fcport->state))); |
1107 | ||
f4f051eb | 1108 | cp->result = DID_BUS_BUSY << 16; |
1da177e4 | 1109 | if (atomic_read(&fcport->state) == FCS_ONLINE) { |
d97994dc | 1110 | qla2x00_mark_device_lost(ha, fcport, 1, 1); |
1da177e4 | 1111 | } |
1da177e4 LT |
1112 | break; |
1113 | ||
1114 | case CS_RESET: | |
1115 | DEBUG2(printk(KERN_INFO | |
1116 | "scsi(%ld): RESET status detected 0x%x-0x%x.\n", | |
1117 | ha->host_no, comp_status, scsi_status)); | |
1118 | ||
f4f051eb | 1119 | cp->result = DID_RESET << 16; |
1da177e4 LT |
1120 | break; |
1121 | ||
1122 | case CS_ABORTED: | |
fa2a1ce5 | 1123 | /* |
1da177e4 LT |
1124 | * hv2.19.12 - DID_ABORT does not retry the request if we |
1125 | * aborted this request then abort otherwise it must be a | |
1126 | * reset. | |
1127 | */ | |
1128 | DEBUG2(printk(KERN_INFO | |
1129 | "scsi(%ld): ABORT status detected 0x%x-0x%x.\n", | |
1130 | ha->host_no, comp_status, scsi_status)); | |
1131 | ||
1132 | cp->result = DID_RESET << 16; | |
1133 | break; | |
1134 | ||
1135 | case CS_TIMEOUT: | |
9a853f71 AV |
1136 | cp->result = DID_BUS_BUSY << 16; |
1137 | ||
044cc6c8 | 1138 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) { |
9a853f71 AV |
1139 | DEBUG2(printk(KERN_INFO |
1140 | "scsi(%ld:%d:%d:%d): TIMEOUT status detected " | |
1141 | "0x%x-0x%x\n", ha->host_no, cp->device->channel, | |
1142 | cp->device->id, cp->device->lun, comp_status, | |
1143 | scsi_status)); | |
1144 | break; | |
1145 | } | |
1da177e4 LT |
1146 | DEBUG2(printk(KERN_INFO |
1147 | "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x " | |
9a853f71 AV |
1148 | "sflags=%x.\n", ha->host_no, cp->device->channel, |
1149 | cp->device->id, cp->device->lun, comp_status, scsi_status, | |
1150 | le16_to_cpu(sts->status_flags))); | |
1da177e4 | 1151 | |
9a853f71 AV |
1152 | /* Check to see if logout occurred. */ |
1153 | if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT)) | |
d97994dc | 1154 | qla2x00_mark_device_lost(ha, fcport, 1, 1); |
1da177e4 LT |
1155 | break; |
1156 | ||
1da177e4 LT |
1157 | default: |
1158 | DEBUG3(printk("scsi(%ld): Error detected (unknown status) " | |
9a853f71 | 1159 | "0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status)); |
1da177e4 LT |
1160 | qla_printk(KERN_INFO, ha, |
1161 | "Unknown status detected 0x%x-0x%x.\n", | |
1162 | comp_status, scsi_status); | |
1163 | ||
1164 | cp->result = DID_ERROR << 16; | |
1165 | break; | |
1166 | } | |
1167 | ||
1168 | /* Place command on done queue. */ | |
1169 | if (ha->status_srb == NULL) | |
f4f051eb | 1170 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
1171 | } |
1172 | ||
1173 | /** | |
1174 | * qla2x00_status_cont_entry() - Process a Status Continuations entry. | |
1175 | * @ha: SCSI driver HA context | |
1176 | * @pkt: Entry pointer | |
1177 | * | |
1178 | * Extended sense data. | |
1179 | */ | |
1180 | static void | |
1181 | qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) | |
1182 | { | |
1183 | uint8_t sense_sz = 0; | |
1184 | srb_t *sp = ha->status_srb; | |
1185 | struct scsi_cmnd *cp; | |
1186 | ||
1187 | if (sp != NULL && sp->request_sense_length != 0) { | |
1188 | cp = sp->cmd; | |
1189 | if (cp == NULL) { | |
1190 | DEBUG2(printk("%s(): Cmd already returned back to OS " | |
75bc4190 | 1191 | "sp=%p.\n", __func__, sp)); |
1da177e4 LT |
1192 | qla_printk(KERN_INFO, ha, |
1193 | "cmd is NULL: already returned to OS (sp=%p)\n", | |
fa2a1ce5 | 1194 | sp); |
1da177e4 LT |
1195 | |
1196 | ha->status_srb = NULL; | |
1197 | return; | |
1198 | } | |
1199 | ||
1200 | if (sp->request_sense_length > sizeof(pkt->data)) { | |
1201 | sense_sz = sizeof(pkt->data); | |
1202 | } else { | |
1203 | sense_sz = sp->request_sense_length; | |
1204 | } | |
1205 | ||
1206 | /* Move sense data. */ | |
044cc6c8 | 1207 | if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) |
9a853f71 | 1208 | host_to_fcp_swap(pkt->data, sizeof(pkt->data)); |
1da177e4 LT |
1209 | memcpy(sp->request_sense_ptr, pkt->data, sense_sz); |
1210 | DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); | |
1211 | ||
1212 | sp->request_sense_ptr += sense_sz; | |
1213 | sp->request_sense_length -= sense_sz; | |
1214 | ||
1215 | /* Place command on done queue. */ | |
1216 | if (sp->request_sense_length == 0) { | |
1da177e4 | 1217 | ha->status_srb = NULL; |
f4f051eb | 1218 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
1219 | } |
1220 | } | |
1221 | } | |
1222 | ||
1223 | /** | |
1224 | * qla2x00_error_entry() - Process an error entry. | |
1225 | * @ha: SCSI driver HA context | |
1226 | * @pkt: Entry pointer | |
1227 | */ | |
1228 | static void | |
9a853f71 | 1229 | qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) |
1da177e4 LT |
1230 | { |
1231 | srb_t *sp; | |
1232 | ||
1233 | #if defined(QL_DEBUG_LEVEL_2) | |
1234 | if (pkt->entry_status & RF_INV_E_ORDER) | |
1235 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); | |
1236 | else if (pkt->entry_status & RF_INV_E_COUNT) | |
1237 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); | |
1238 | else if (pkt->entry_status & RF_INV_E_PARAM) | |
fa2a1ce5 | 1239 | qla_printk(KERN_ERR, ha, |
1da177e4 LT |
1240 | "%s: Invalid Entry Parameter\n", __func__); |
1241 | else if (pkt->entry_status & RF_INV_E_TYPE) | |
1242 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); | |
1243 | else if (pkt->entry_status & RF_BUSY) | |
1244 | qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); | |
1245 | else | |
1246 | qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); | |
1247 | #endif | |
1248 | ||
1249 | /* Validate handle. */ | |
1250 | if (pkt->handle < MAX_OUTSTANDING_COMMANDS) | |
1251 | sp = ha->outstanding_cmds[pkt->handle]; | |
1252 | else | |
1253 | sp = NULL; | |
1254 | ||
1255 | if (sp) { | |
1256 | /* Free outstanding command slot. */ | |
1257 | ha->outstanding_cmds[pkt->handle] = NULL; | |
354d6b21 | 1258 | |
1da177e4 LT |
1259 | /* Bad payload or header */ |
1260 | if (pkt->entry_status & | |
1261 | (RF_INV_E_ORDER | RF_INV_E_COUNT | | |
1262 | RF_INV_E_PARAM | RF_INV_E_TYPE)) { | |
1263 | sp->cmd->result = DID_ERROR << 16; | |
1264 | } else if (pkt->entry_status & RF_BUSY) { | |
1265 | sp->cmd->result = DID_BUS_BUSY << 16; | |
1266 | } else { | |
1267 | sp->cmd->result = DID_ERROR << 16; | |
1268 | } | |
f4f051eb | 1269 | qla2x00_sp_compl(ha, sp); |
1da177e4 | 1270 | |
9a853f71 AV |
1271 | } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == |
1272 | COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) { | |
1da177e4 LT |
1273 | DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", |
1274 | ha->host_no)); | |
1275 | qla_printk(KERN_WARNING, ha, | |
1276 | "Error entry - invalid handle\n"); | |
1277 | ||
1278 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
39a11240 | 1279 | qla2xxx_wake_dpc(ha); |
1da177e4 LT |
1280 | } |
1281 | } | |
1282 | ||
1283 | /** | |
1284 | * qla2x00_ms_entry() - Process a Management Server entry. | |
1285 | * @ha: SCSI driver HA context | |
1286 | * @index: Response queue out pointer | |
1287 | */ | |
1288 | static void | |
9a853f71 | 1289 | qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) |
1da177e4 LT |
1290 | { |
1291 | srb_t *sp; | |
1292 | ||
1293 | DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n", | |
1294 | __func__, ha->host_no, pkt, pkt->handle1)); | |
1295 | ||
1296 | /* Validate handle. */ | |
1297 | if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS) | |
1298 | sp = ha->outstanding_cmds[pkt->handle1]; | |
1299 | else | |
1300 | sp = NULL; | |
1301 | ||
1302 | if (sp == NULL) { | |
1303 | DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n", | |
1304 | ha->host_no)); | |
1305 | qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n"); | |
1306 | ||
1307 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
1308 | return; | |
1309 | } | |
1310 | ||
1311 | CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status); | |
1312 | CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status; | |
1313 | ||
1314 | /* Free outstanding command slot. */ | |
1315 | ha->outstanding_cmds[pkt->handle1] = NULL; | |
1316 | ||
f4f051eb | 1317 | qla2x00_sp_compl(ha, sp); |
1da177e4 | 1318 | } |
9a853f71 AV |
1319 | |
1320 | ||
1321 | /** | |
1322 | * qla24xx_mbx_completion() - Process mailbox command completions. | |
1323 | * @ha: SCSI driver HA context | |
1324 | * @mb0: Mailbox0 register | |
1325 | */ | |
1326 | static void | |
1327 | qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) | |
1328 | { | |
1329 | uint16_t cnt; | |
1330 | uint16_t __iomem *wptr; | |
1331 | struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; | |
1332 | ||
1333 | /* Load return mailbox registers. */ | |
1334 | ha->flags.mbox_int = 1; | |
1335 | ha->mailbox_out[0] = mb0; | |
1336 | wptr = (uint16_t __iomem *)®->mailbox1; | |
1337 | ||
1338 | for (cnt = 1; cnt < ha->mbx_count; cnt++) { | |
1339 | ha->mailbox_out[cnt] = RD_REG_WORD(wptr); | |
1340 | wptr++; | |
1341 | } | |
1342 | ||
1343 | if (ha->mcp) { | |
1344 | DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", | |
1345 | __func__, ha->host_no, ha->mcp->mb[0])); | |
1346 | } else { | |
1347 | DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", | |
1348 | __func__, ha->host_no)); | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | /** | |
1353 | * qla24xx_process_response_queue() - Process response queue entries. | |
1354 | * @ha: SCSI driver HA context | |
1355 | */ | |
1356 | void | |
1357 | qla24xx_process_response_queue(struct scsi_qla_host *ha) | |
1358 | { | |
1359 | struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; | |
1360 | struct sts_entry_24xx *pkt; | |
1361 | ||
1362 | if (!ha->flags.online) | |
1363 | return; | |
1364 | ||
1365 | while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { | |
1366 | pkt = (struct sts_entry_24xx *)ha->response_ring_ptr; | |
1367 | ||
1368 | ha->rsp_ring_index++; | |
1369 | if (ha->rsp_ring_index == ha->response_q_length) { | |
1370 | ha->rsp_ring_index = 0; | |
1371 | ha->response_ring_ptr = ha->response_ring; | |
1372 | } else { | |
1373 | ha->response_ring_ptr++; | |
1374 | } | |
1375 | ||
1376 | if (pkt->entry_status != 0) { | |
1377 | DEBUG3(printk(KERN_INFO | |
1378 | "scsi(%ld): Process error entry.\n", ha->host_no)); | |
1379 | ||
9a853f71 AV |
1380 | qla2x00_error_entry(ha, (sts_entry_t *) pkt); |
1381 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
1382 | wmb(); | |
1383 | continue; | |
1384 | } | |
1385 | ||
1386 | switch (pkt->entry_type) { | |
1387 | case STATUS_TYPE: | |
1388 | qla2x00_status_entry(ha, pkt); | |
1389 | break; | |
1390 | case STATUS_CONT_TYPE: | |
1391 | qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); | |
1392 | break; | |
1393 | case MS_IOCB_TYPE: | |
1394 | qla24xx_ms_entry(ha, (struct ct_entry_24xx *)pkt); | |
1395 | break; | |
1396 | default: | |
1397 | /* Type Not Supported. */ | |
1398 | DEBUG4(printk(KERN_WARNING | |
1399 | "scsi(%ld): Received unknown response pkt type %x " | |
1400 | "entry status=%x.\n", | |
1401 | ha->host_no, pkt->entry_type, pkt->entry_status)); | |
1402 | break; | |
1403 | } | |
1404 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
1405 | wmb(); | |
1406 | } | |
1407 | ||
1408 | /* Adjust ring index */ | |
1409 | WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index); | |
1410 | } | |
1411 | ||
1412 | /** | |
1413 | * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. | |
1414 | * @irq: | |
1415 | * @dev_id: SCSI driver HA context | |
9a853f71 AV |
1416 | * |
1417 | * Called by system whenever the host adapter generates an interrupt. | |
1418 | * | |
1419 | * Returns handled flag. | |
1420 | */ | |
1421 | irqreturn_t | |
7d12e780 | 1422 | qla24xx_intr_handler(int irq, void *dev_id) |
9a853f71 AV |
1423 | { |
1424 | scsi_qla_host_t *ha; | |
1425 | struct device_reg_24xx __iomem *reg; | |
1426 | int status; | |
1427 | unsigned long flags; | |
1428 | unsigned long iter; | |
1429 | uint32_t stat; | |
1430 | uint32_t hccr; | |
1431 | uint16_t mb[4]; | |
1432 | ||
1433 | ha = (scsi_qla_host_t *) dev_id; | |
1434 | if (!ha) { | |
1435 | printk(KERN_INFO | |
1436 | "%s(): NULL host pointer\n", __func__); | |
1437 | return IRQ_NONE; | |
1438 | } | |
1439 | ||
1440 | reg = &ha->iobase->isp24; | |
1441 | status = 0; | |
1442 | ||
1443 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1444 | for (iter = 50; iter--; ) { | |
1445 | stat = RD_REG_DWORD(®->host_status); | |
1446 | if (stat & HSRX_RISC_PAUSED) { | |
1447 | hccr = RD_REG_DWORD(®->hccr); | |
1448 | ||
1449 | qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " | |
1450 | "Dumping firmware!\n", hccr); | |
96ca5cad | 1451 | ha->isp_ops.fw_dump(ha, 1); |
9a853f71 AV |
1452 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
1453 | break; | |
1454 | } else if ((stat & HSRX_RISC_INT) == 0) | |
1455 | break; | |
1456 | ||
1457 | switch (stat & 0xff) { | |
1458 | case 0x1: | |
1459 | case 0x2: | |
1460 | case 0x10: | |
1461 | case 0x11: | |
1462 | qla24xx_mbx_completion(ha, MSW(stat)); | |
1463 | status |= MBX_INTERRUPT; | |
1464 | ||
1465 | break; | |
1466 | case 0x12: | |
1467 | mb[0] = MSW(stat); | |
1468 | mb[1] = RD_REG_WORD(®->mailbox1); | |
1469 | mb[2] = RD_REG_WORD(®->mailbox2); | |
1470 | mb[3] = RD_REG_WORD(®->mailbox3); | |
1471 | qla2x00_async_event(ha, mb); | |
1472 | break; | |
1473 | case 0x13: | |
1474 | qla24xx_process_response_queue(ha); | |
1475 | break; | |
1476 | default: | |
1477 | DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " | |
1478 | "(%d).\n", | |
1479 | ha->host_no, stat & 0xff)); | |
1480 | break; | |
1481 | } | |
1482 | WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); | |
1483 | RD_REG_DWORD_RELAXED(®->hccr); | |
1484 | } | |
1485 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1486 | ||
1487 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && | |
1488 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
9a853f71 AV |
1489 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
1490 | up(&ha->mbx_intr_sem); | |
9a853f71 AV |
1491 | } |
1492 | ||
1493 | return IRQ_HANDLED; | |
1494 | } | |
1495 | ||
1496 | /** | |
1497 | * qla24xx_ms_entry() - Process a Management Server entry. | |
1498 | * @ha: SCSI driver HA context | |
1499 | * @index: Response queue out pointer | |
1500 | */ | |
1501 | static void | |
1502 | qla24xx_ms_entry(scsi_qla_host_t *ha, struct ct_entry_24xx *pkt) | |
1503 | { | |
1504 | srb_t *sp; | |
1505 | ||
1506 | DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n", | |
1507 | __func__, ha->host_no, pkt, pkt->handle)); | |
1508 | ||
744f11fd AV |
1509 | DEBUG9(printk("%s: ct pkt dump:\n", __func__)); |
1510 | DEBUG9(qla2x00_dump_buffer((void *)pkt, sizeof(struct ct_entry_24xx))); | |
9a853f71 AV |
1511 | |
1512 | /* Validate handle. */ | |
1513 | if (pkt->handle < MAX_OUTSTANDING_COMMANDS) | |
1514 | sp = ha->outstanding_cmds[pkt->handle]; | |
1515 | else | |
1516 | sp = NULL; | |
1517 | ||
1518 | if (sp == NULL) { | |
1519 | DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n", | |
1520 | ha->host_no)); | |
1521 | DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n", | |
1522 | ha->host_no)); | |
1523 | qla_printk(KERN_WARNING, ha, "MS entry - invalid handle %d\n", | |
1524 | pkt->handle); | |
1525 | ||
1526 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
1527 | return; | |
1528 | } | |
1529 | ||
1530 | CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->comp_status); | |
1531 | CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status; | |
1532 | ||
1533 | /* Free outstanding command slot. */ | |
1534 | ha->outstanding_cmds[pkt->handle] = NULL; | |
1535 | ||
1536 | qla2x00_sp_compl(ha, sp); | |
1537 | } | |
1538 | ||
a8488abe AV |
1539 | static irqreturn_t |
1540 | qla24xx_msix_rsp_q(int irq, void *dev_id) | |
1541 | { | |
1542 | scsi_qla_host_t *ha; | |
1543 | struct device_reg_24xx __iomem *reg; | |
1544 | unsigned long flags; | |
1545 | ||
1546 | ha = dev_id; | |
1547 | reg = &ha->iobase->isp24; | |
1548 | ||
1549 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1550 | ||
1551 | qla24xx_process_response_queue(ha); | |
1552 | ||
1553 | WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); | |
1554 | RD_REG_DWORD_RELAXED(®->hccr); | |
1555 | ||
1556 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1557 | ||
1558 | return IRQ_HANDLED; | |
1559 | } | |
1560 | ||
1561 | static irqreturn_t | |
1562 | qla24xx_msix_default(int irq, void *dev_id) | |
1563 | { | |
1564 | scsi_qla_host_t *ha; | |
1565 | struct device_reg_24xx __iomem *reg; | |
1566 | int status; | |
1567 | unsigned long flags; | |
1568 | unsigned long iter; | |
1569 | uint32_t stat; | |
1570 | uint32_t hccr; | |
1571 | uint16_t mb[4]; | |
1572 | ||
1573 | ha = dev_id; | |
1574 | reg = &ha->iobase->isp24; | |
1575 | status = 0; | |
1576 | ||
1577 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1578 | for (iter = 50; iter--; ) { | |
1579 | stat = RD_REG_DWORD(®->host_status); | |
1580 | if (stat & HSRX_RISC_PAUSED) { | |
1581 | hccr = RD_REG_DWORD(®->hccr); | |
1582 | ||
1583 | qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " | |
1584 | "Dumping firmware!\n", hccr); | |
1585 | ha->isp_ops.fw_dump(ha, 1); | |
1586 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
1587 | break; | |
1588 | } else if ((stat & HSRX_RISC_INT) == 0) | |
1589 | break; | |
1590 | ||
1591 | switch (stat & 0xff) { | |
1592 | case 0x1: | |
1593 | case 0x2: | |
1594 | case 0x10: | |
1595 | case 0x11: | |
1596 | qla24xx_mbx_completion(ha, MSW(stat)); | |
1597 | status |= MBX_INTERRUPT; | |
1598 | ||
1599 | break; | |
1600 | case 0x12: | |
1601 | mb[0] = MSW(stat); | |
1602 | mb[1] = RD_REG_WORD(®->mailbox1); | |
1603 | mb[2] = RD_REG_WORD(®->mailbox2); | |
1604 | mb[3] = RD_REG_WORD(®->mailbox3); | |
1605 | qla2x00_async_event(ha, mb); | |
1606 | break; | |
1607 | case 0x13: | |
1608 | qla24xx_process_response_queue(ha); | |
1609 | break; | |
1610 | default: | |
1611 | DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " | |
1612 | "(%d).\n", | |
1613 | ha->host_no, stat & 0xff)); | |
1614 | break; | |
1615 | } | |
1616 | WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); | |
1617 | RD_REG_DWORD_RELAXED(®->hccr); | |
1618 | } | |
1619 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1620 | ||
1621 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && | |
1622 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
a8488abe AV |
1623 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
1624 | up(&ha->mbx_intr_sem); | |
a8488abe AV |
1625 | } |
1626 | ||
1627 | return IRQ_HANDLED; | |
1628 | } | |
1629 | ||
1630 | /* Interrupt handling helpers. */ | |
1631 | ||
1632 | struct qla_init_msix_entry { | |
1633 | uint16_t entry; | |
1634 | uint16_t index; | |
1635 | const char *name; | |
1636 | irqreturn_t (*handler)(int, void *); | |
1637 | }; | |
1638 | ||
1639 | static struct qla_init_msix_entry imsix_entries[QLA_MSIX_ENTRIES] = { | |
1640 | { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT, | |
1641 | "qla2xxx (default)", qla24xx_msix_default }, | |
1642 | ||
1643 | { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q, | |
1644 | "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, | |
1645 | }; | |
1646 | ||
1647 | static void | |
1648 | qla24xx_disable_msix(scsi_qla_host_t *ha) | |
1649 | { | |
1650 | int i; | |
1651 | struct qla_msix_entry *qentry; | |
1652 | ||
1653 | for (i = 0; i < QLA_MSIX_ENTRIES; i++) { | |
1654 | qentry = &ha->msix_entries[imsix_entries[i].index]; | |
1655 | if (qentry->have_irq) | |
1656 | free_irq(qentry->msix_vector, ha); | |
1657 | } | |
1658 | pci_disable_msix(ha->pdev); | |
1659 | } | |
1660 | ||
1661 | static int | |
1662 | qla24xx_enable_msix(scsi_qla_host_t *ha) | |
1663 | { | |
1664 | int i, ret; | |
1665 | struct msix_entry entries[QLA_MSIX_ENTRIES]; | |
1666 | struct qla_msix_entry *qentry; | |
1667 | ||
1668 | for (i = 0; i < QLA_MSIX_ENTRIES; i++) | |
1669 | entries[i].entry = imsix_entries[i].entry; | |
1670 | ||
1671 | ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries)); | |
1672 | if (ret) { | |
1673 | qla_printk(KERN_WARNING, ha, | |
1674 | "MSI-X: Failed to enable support -- %d/%d\n", | |
1675 | QLA_MSIX_ENTRIES, ret); | |
1676 | goto msix_out; | |
1677 | } | |
1678 | ha->flags.msix_enabled = 1; | |
1679 | ||
1680 | for (i = 0; i < QLA_MSIX_ENTRIES; i++) { | |
1681 | qentry = &ha->msix_entries[imsix_entries[i].index]; | |
1682 | qentry->msix_vector = entries[i].vector; | |
1683 | qentry->msix_entry = entries[i].entry; | |
1684 | qentry->have_irq = 0; | |
1685 | ret = request_irq(qentry->msix_vector, | |
1686 | imsix_entries[i].handler, 0, imsix_entries[i].name, ha); | |
1687 | if (ret) { | |
1688 | qla_printk(KERN_WARNING, ha, | |
1689 | "MSI-X: Unable to register handler -- %x/%d.\n", | |
1690 | imsix_entries[i].index, ret); | |
1691 | qla24xx_disable_msix(ha); | |
1692 | goto msix_out; | |
1693 | } | |
1694 | qentry->have_irq = 1; | |
1695 | } | |
1696 | ||
1697 | msix_out: | |
1698 | return ret; | |
1699 | } | |
1700 | ||
1701 | int | |
1702 | qla2x00_request_irqs(scsi_qla_host_t *ha) | |
1703 | { | |
1704 | int ret; | |
1705 | ||
1706 | /* If possible, enable MSI-X. */ | |
1707 | if (!IS_QLA2432(ha)) | |
1708 | goto skip_msix; | |
1709 | ||
1710 | if (ha->chip_revision < QLA_MSIX_CHIP_REV_24XX || | |
1711 | !QLA_MSIX_FW_MODE_1(ha->fw_attributes)) { | |
1712 | DEBUG2(qla_printk(KERN_WARNING, ha, | |
1713 | "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", | |
1714 | ha->chip_revision, ha->fw_attributes)); | |
1715 | ||
1716 | goto skip_msix; | |
1717 | } | |
1718 | ||
1719 | ret = qla24xx_enable_msix(ha); | |
1720 | if (!ret) { | |
1721 | DEBUG2(qla_printk(KERN_INFO, ha, | |
1722 | "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, | |
1723 | ha->fw_attributes)); | |
1724 | return ret; | |
1725 | } | |
1726 | qla_printk(KERN_WARNING, ha, | |
1727 | "MSI-X: Falling back-to INTa mode -- %d.\n", ret); | |
1728 | skip_msix: | |
cbedb601 AV |
1729 | |
1730 | if (!IS_QLA24XX(ha)) | |
1731 | goto skip_msi; | |
1732 | ||
1733 | ret = pci_enable_msi(ha->pdev); | |
1734 | if (!ret) { | |
1735 | DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n")); | |
1736 | ha->flags.msi_enabled = 1; | |
1737 | } | |
1738 | skip_msi: | |
1739 | ||
a8488abe AV |
1740 | ret = request_irq(ha->pdev->irq, ha->isp_ops.intr_handler, |
1741 | IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha); | |
d88021a6 AV |
1742 | if (!ret) { |
1743 | ha->flags.inta_enabled = 1; | |
1744 | ha->host->irq = ha->pdev->irq; | |
1745 | } else { | |
a8488abe AV |
1746 | qla_printk(KERN_WARNING, ha, |
1747 | "Failed to reserve interrupt %d already in use.\n", | |
1748 | ha->pdev->irq); | |
1749 | } | |
a8488abe AV |
1750 | |
1751 | return ret; | |
1752 | } | |
1753 | ||
1754 | void | |
1755 | qla2x00_free_irqs(scsi_qla_host_t *ha) | |
1756 | { | |
1757 | ||
1758 | if (ha->flags.msix_enabled) | |
1759 | qla24xx_disable_msix(ha); | |
cbedb601 | 1760 | else if (ha->flags.inta_enabled) { |
a8488abe | 1761 | free_irq(ha->host->irq, ha); |
cbedb601 AV |
1762 | pci_disable_msi(ha->pdev); |
1763 | } | |
a8488abe | 1764 | } |