]>
Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
fa90c54f | 2 | * QLogic Fibre Channel HBA Driver |
01e58d8e | 3 | * Copyright (c) 2003-2008 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f | 5 | * See LICENSE.qla2xxx for copyright and licensing details. |
1da177e4 LT |
6 | */ |
7 | #include "qla_def.h" | |
8 | ||
05236a05 | 9 | #include <linux/delay.h> |
df7baa50 AV |
10 | #include <scsi/scsi_tcq.h> |
11 | ||
1da177e4 | 12 | static void qla2x00_mbx_completion(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 *); | |
9a853f71 | 17 | |
1da177e4 LT |
18 | /** |
19 | * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. | |
20 | * @irq: | |
21 | * @dev_id: SCSI driver HA context | |
1da177e4 LT |
22 | * |
23 | * Called by system whenever the host adapter generates an interrupt. | |
24 | * | |
25 | * Returns handled flag. | |
26 | */ | |
27 | irqreturn_t | |
7d12e780 | 28 | qla2100_intr_handler(int irq, void *dev_id) |
1da177e4 LT |
29 | { |
30 | scsi_qla_host_t *ha; | |
3d71644c | 31 | struct device_reg_2xxx __iomem *reg; |
1da177e4 | 32 | int status; |
1da177e4 | 33 | unsigned long iter; |
14e660e6 | 34 | uint16_t hccr; |
9a853f71 | 35 | uint16_t mb[4]; |
1da177e4 LT |
36 | |
37 | ha = (scsi_qla_host_t *) dev_id; | |
38 | if (!ha) { | |
39 | printk(KERN_INFO | |
40 | "%s(): NULL host pointer\n", __func__); | |
41 | return (IRQ_NONE); | |
42 | } | |
43 | ||
3d71644c | 44 | reg = &ha->iobase->isp; |
1da177e4 LT |
45 | status = 0; |
46 | ||
c6952483 | 47 | spin_lock(&ha->hardware_lock); |
1da177e4 | 48 | for (iter = 50; iter--; ) { |
14e660e6 SJ |
49 | hccr = RD_REG_WORD(®->hccr); |
50 | if (hccr & HCCR_RISC_PAUSE) { | |
51 | if (pci_channel_offline(ha->pdev)) | |
52 | break; | |
53 | ||
54 | /* | |
55 | * Issue a "HARD" reset in order for the RISC interrupt | |
56 | * bit to be cleared. Schedule a big hammmer to get | |
57 | * out of the RISC PAUSED state. | |
58 | */ | |
59 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
60 | RD_REG_WORD(®->hccr); | |
61 | ||
62 | ha->isp_ops->fw_dump(ha, 1); | |
63 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
64 | break; | |
65 | } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) | |
1da177e4 LT |
66 | break; |
67 | ||
68 | if (RD_REG_WORD(®->semaphore) & BIT_0) { | |
69 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
70 | RD_REG_WORD(®->hccr); | |
71 | ||
72 | /* Get mailbox data. */ | |
9a853f71 AV |
73 | mb[0] = RD_MAILBOX_REG(ha, reg, 0); |
74 | if (mb[0] > 0x3fff && mb[0] < 0x8000) { | |
75 | qla2x00_mbx_completion(ha, mb[0]); | |
1da177e4 | 76 | status |= MBX_INTERRUPT; |
9a853f71 AV |
77 | } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { |
78 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
79 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
80 | mb[3] = RD_MAILBOX_REG(ha, reg, 3); | |
81 | qla2x00_async_event(ha, mb); | |
1da177e4 LT |
82 | } else { |
83 | /*EMPTY*/ | |
84 | DEBUG2(printk("scsi(%ld): Unrecognized " | |
9a853f71 AV |
85 | "interrupt type (%d).\n", |
86 | ha->host_no, mb[0])); | |
1da177e4 LT |
87 | } |
88 | /* Release mailbox registers. */ | |
89 | WRT_REG_WORD(®->semaphore, 0); | |
90 | RD_REG_WORD(®->semaphore); | |
91 | } else { | |
92 | qla2x00_process_response_queue(ha); | |
93 | ||
94 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
95 | RD_REG_WORD(®->hccr); | |
96 | } | |
97 | } | |
c6952483 | 98 | spin_unlock(&ha->hardware_lock); |
1da177e4 | 99 | |
1da177e4 LT |
100 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && |
101 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
1da177e4 | 102 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
0b05a1f0 | 103 | complete(&ha->mbx_intr_comp); |
1da177e4 LT |
104 | } |
105 | ||
1da177e4 LT |
106 | return (IRQ_HANDLED); |
107 | } | |
108 | ||
109 | /** | |
110 | * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. | |
111 | * @irq: | |
112 | * @dev_id: SCSI driver HA context | |
1da177e4 LT |
113 | * |
114 | * Called by system whenever the host adapter generates an interrupt. | |
115 | * | |
116 | * Returns handled flag. | |
117 | */ | |
118 | irqreturn_t | |
7d12e780 | 119 | qla2300_intr_handler(int irq, void *dev_id) |
1da177e4 LT |
120 | { |
121 | scsi_qla_host_t *ha; | |
3d71644c | 122 | struct device_reg_2xxx __iomem *reg; |
1da177e4 | 123 | int status; |
1da177e4 LT |
124 | unsigned long iter; |
125 | uint32_t stat; | |
1da177e4 | 126 | uint16_t hccr; |
9a853f71 | 127 | uint16_t mb[4]; |
1da177e4 LT |
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 | ||
3d71644c | 136 | reg = &ha->iobase->isp; |
1da177e4 LT |
137 | status = 0; |
138 | ||
c6952483 | 139 | spin_lock(&ha->hardware_lock); |
1da177e4 LT |
140 | for (iter = 50; iter--; ) { |
141 | stat = RD_REG_DWORD(®->u.isp2300.host_status); | |
142 | if (stat & HSR_RISC_PAUSED) { | |
14e660e6 SJ |
143 | if (pci_channel_offline(ha->pdev)) |
144 | break; | |
145 | ||
1da177e4 LT |
146 | hccr = RD_REG_WORD(®->hccr); |
147 | if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) | |
07f31805 AV |
148 | qla_printk(KERN_INFO, ha, "Parity error -- " |
149 | "HCCR=%x, Dumping firmware!\n", hccr); | |
1da177e4 | 150 | else |
07f31805 AV |
151 | qla_printk(KERN_INFO, ha, "RISC paused -- " |
152 | "HCCR=%x, Dumping firmware!\n", hccr); | |
1da177e4 LT |
153 | |
154 | /* | |
155 | * Issue a "HARD" reset in order for the RISC | |
156 | * interrupt bit to be cleared. Schedule a big | |
157 | * hammmer to get out of the RISC PAUSED state. | |
158 | */ | |
159 | WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); | |
160 | RD_REG_WORD(®->hccr); | |
07f31805 | 161 | |
fd34f556 | 162 | ha->isp_ops->fw_dump(ha, 1); |
1da177e4 LT |
163 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
164 | break; | |
165 | } else if ((stat & HSR_RISC_INT) == 0) | |
166 | break; | |
167 | ||
1da177e4 | 168 | switch (stat & 0xff) { |
1da177e4 LT |
169 | case 0x1: |
170 | case 0x2: | |
171 | case 0x10: | |
172 | case 0x11: | |
9a853f71 | 173 | qla2x00_mbx_completion(ha, MSW(stat)); |
1da177e4 LT |
174 | status |= MBX_INTERRUPT; |
175 | ||
176 | /* Release mailbox registers. */ | |
177 | WRT_REG_WORD(®->semaphore, 0); | |
178 | break; | |
179 | case 0x12: | |
9a853f71 AV |
180 | mb[0] = MSW(stat); |
181 | mb[1] = RD_MAILBOX_REG(ha, reg, 1); | |
182 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
183 | mb[3] = RD_MAILBOX_REG(ha, reg, 3); | |
184 | qla2x00_async_event(ha, mb); | |
185 | break; | |
186 | case 0x13: | |
187 | qla2x00_process_response_queue(ha); | |
1da177e4 LT |
188 | break; |
189 | case 0x15: | |
9a853f71 AV |
190 | mb[0] = MBA_CMPLT_1_16BIT; |
191 | mb[1] = MSW(stat); | |
192 | qla2x00_async_event(ha, mb); | |
1da177e4 LT |
193 | break; |
194 | case 0x16: | |
9a853f71 AV |
195 | mb[0] = MBA_SCSI_COMPLETION; |
196 | mb[1] = MSW(stat); | |
197 | mb[2] = RD_MAILBOX_REG(ha, reg, 2); | |
198 | qla2x00_async_event(ha, mb); | |
1da177e4 LT |
199 | break; |
200 | default: | |
201 | DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " | |
9a853f71 | 202 | "(%d).\n", |
1da177e4 LT |
203 | ha->host_no, stat & 0xff)); |
204 | break; | |
205 | } | |
206 | WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); | |
207 | RD_REG_WORD_RELAXED(®->hccr); | |
208 | } | |
c6952483 | 209 | spin_unlock(&ha->hardware_lock); |
1da177e4 | 210 | |
1da177e4 LT |
211 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && |
212 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
1da177e4 | 213 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
0b05a1f0 | 214 | complete(&ha->mbx_intr_comp); |
1da177e4 LT |
215 | } |
216 | ||
1da177e4 LT |
217 | return (IRQ_HANDLED); |
218 | } | |
219 | ||
220 | /** | |
221 | * qla2x00_mbx_completion() - Process mailbox command completions. | |
222 | * @ha: SCSI driver HA context | |
223 | * @mb0: Mailbox0 register | |
224 | */ | |
225 | static void | |
226 | qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) | |
227 | { | |
228 | uint16_t cnt; | |
229 | uint16_t __iomem *wptr; | |
3d71644c | 230 | struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; |
1da177e4 LT |
231 | |
232 | /* Load return mailbox registers. */ | |
233 | ha->flags.mbox_int = 1; | |
234 | ha->mailbox_out[0] = mb0; | |
235 | wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); | |
236 | ||
237 | for (cnt = 1; cnt < ha->mbx_count; cnt++) { | |
fa2a1ce5 | 238 | if (IS_QLA2200(ha) && cnt == 8) |
1da177e4 LT |
239 | wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); |
240 | if (cnt == 4 || cnt == 5) | |
241 | ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); | |
242 | else | |
243 | ha->mailbox_out[cnt] = RD_REG_WORD(wptr); | |
fa2a1ce5 | 244 | |
1da177e4 LT |
245 | wptr++; |
246 | } | |
247 | ||
248 | if (ha->mcp) { | |
249 | DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", | |
250 | __func__, ha->host_no, ha->mcp->mb[0])); | |
251 | } else { | |
252 | DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", | |
253 | __func__, ha->host_no)); | |
254 | } | |
255 | } | |
256 | ||
257 | /** | |
258 | * qla2x00_async_event() - Process aynchronous events. | |
259 | * @ha: SCSI driver HA context | |
9a853f71 | 260 | * @mb: Mailbox registers (0 - 3) |
1da177e4 | 261 | */ |
2c3dfe3f | 262 | void |
9a853f71 | 263 | qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) |
1da177e4 | 264 | { |
9a853f71 | 265 | #define LS_UNKNOWN 2 |
c3a2f0df | 266 | static char *link_speeds[5] = { "1", "2", "?", "4", "8" }; |
1da177e4 | 267 | char *link_speed; |
1da177e4 LT |
268 | uint16_t handle_cnt; |
269 | uint16_t cnt; | |
270 | uint32_t handles[5]; | |
3d71644c | 271 | struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; |
1da177e4 LT |
272 | uint32_t rscn_entry, host_pid; |
273 | uint8_t rscn_queue_index; | |
274 | ||
275 | /* Setup to process RIO completion. */ | |
276 | handle_cnt = 0; | |
1da177e4 LT |
277 | switch (mb[0]) { |
278 | case MBA_SCSI_COMPLETION: | |
9a853f71 | 279 | handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); |
1da177e4 LT |
280 | handle_cnt = 1; |
281 | break; | |
282 | case MBA_CMPLT_1_16BIT: | |
9a853f71 | 283 | handles[0] = mb[1]; |
1da177e4 LT |
284 | handle_cnt = 1; |
285 | mb[0] = MBA_SCSI_COMPLETION; | |
286 | break; | |
287 | case MBA_CMPLT_2_16BIT: | |
9a853f71 AV |
288 | handles[0] = mb[1]; |
289 | handles[1] = mb[2]; | |
1da177e4 LT |
290 | handle_cnt = 2; |
291 | mb[0] = MBA_SCSI_COMPLETION; | |
292 | break; | |
293 | case MBA_CMPLT_3_16BIT: | |
9a853f71 AV |
294 | handles[0] = mb[1]; |
295 | handles[1] = mb[2]; | |
296 | handles[2] = mb[3]; | |
1da177e4 LT |
297 | handle_cnt = 3; |
298 | mb[0] = MBA_SCSI_COMPLETION; | |
299 | break; | |
300 | case MBA_CMPLT_4_16BIT: | |
9a853f71 AV |
301 | handles[0] = mb[1]; |
302 | handles[1] = mb[2]; | |
303 | handles[2] = mb[3]; | |
1da177e4 LT |
304 | handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); |
305 | handle_cnt = 4; | |
306 | mb[0] = MBA_SCSI_COMPLETION; | |
307 | break; | |
308 | case MBA_CMPLT_5_16BIT: | |
9a853f71 AV |
309 | handles[0] = mb[1]; |
310 | handles[1] = mb[2]; | |
311 | handles[2] = mb[3]; | |
1da177e4 LT |
312 | handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); |
313 | handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); | |
314 | handle_cnt = 5; | |
315 | mb[0] = MBA_SCSI_COMPLETION; | |
316 | break; | |
317 | case MBA_CMPLT_2_32BIT: | |
9a853f71 | 318 | handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); |
1da177e4 LT |
319 | handles[1] = le32_to_cpu( |
320 | ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | | |
321 | RD_MAILBOX_REG(ha, reg, 6)); | |
322 | handle_cnt = 2; | |
323 | mb[0] = MBA_SCSI_COMPLETION; | |
324 | break; | |
325 | default: | |
326 | break; | |
327 | } | |
328 | ||
329 | switch (mb[0]) { | |
330 | case MBA_SCSI_COMPLETION: /* Fast Post */ | |
331 | if (!ha->flags.online) | |
332 | break; | |
333 | ||
334 | for (cnt = 0; cnt < handle_cnt; cnt++) | |
335 | qla2x00_process_completed_request(ha, handles[cnt]); | |
336 | break; | |
337 | ||
338 | case MBA_RESET: /* Reset */ | |
339 | DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no)); | |
340 | ||
341 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
342 | break; | |
343 | ||
344 | case MBA_SYSTEM_ERR: /* System Error */ | |
1da177e4 LT |
345 | qla_printk(KERN_INFO, ha, |
346 | "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n", | |
347 | mb[1], mb[2], mb[3]); | |
348 | ||
cb8dacbf | 349 | qla2x00_post_hwe_work(ha, mb[0], mb[1], mb[2], mb[3]); |
fd34f556 | 350 | ha->isp_ops->fw_dump(ha, 1); |
1da177e4 | 351 | |
e428924c | 352 | if (IS_FWI2_CAPABLE(ha)) { |
9a853f71 AV |
353 | if (mb[1] == 0 && mb[2] == 0) { |
354 | qla_printk(KERN_ERR, ha, | |
355 | "Unrecoverable Hardware Error: adapter " | |
356 | "marked OFFLINE!\n"); | |
357 | ha->flags.online = 0; | |
358 | } else | |
359 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
360 | } else if (mb[1] == 0) { | |
1da177e4 LT |
361 | qla_printk(KERN_INFO, ha, |
362 | "Unrecoverable Hardware Error: adapter marked " | |
363 | "OFFLINE!\n"); | |
364 | ha->flags.online = 0; | |
365 | } else | |
366 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
367 | break; | |
368 | ||
369 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
370 | DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n", | |
371 | ha->host_no)); | |
372 | qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n"); | |
373 | ||
cb8dacbf | 374 | qla2x00_post_hwe_work(ha, mb[0], mb[1], mb[2], mb[3]); |
1da177e4 LT |
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 | ||
cb8dacbf | 383 | qla2x00_post_hwe_work(ha, mb[0], mb[1], mb[2], mb[3]); |
1da177e4 LT |
384 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
385 | break; | |
386 | ||
387 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ | |
388 | DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", | |
389 | ha->host_no)); | |
390 | break; | |
391 | ||
392 | case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ | |
1da177e4 LT |
393 | DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no, |
394 | mb[1])); | |
395 | qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]); | |
396 | ||
397 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
398 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
399 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
d97994dc | 400 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
401 | } |
402 | ||
2c3dfe3f SJ |
403 | if (ha->parent) { |
404 | atomic_set(&ha->vp_state, VP_FAILED); | |
405 | fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); | |
406 | } | |
407 | ||
1da177e4 LT |
408 | set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); |
409 | ||
410 | ha->flags.management_server_logged_in = 0; | |
0971de7f | 411 | qla2x00_post_aen_work(ha, FCH_EVT_LIP, mb[1]); |
1da177e4 LT |
412 | break; |
413 | ||
414 | case MBA_LOOP_UP: /* Loop Up Event */ | |
1da177e4 LT |
415 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) { |
416 | link_speed = link_speeds[0]; | |
d8b45213 | 417 | ha->link_data_rate = PORT_SPEED_1GB; |
1da177e4 | 418 | } else { |
9a853f71 | 419 | link_speed = link_speeds[LS_UNKNOWN]; |
1da177e4 LT |
420 | if (mb[1] < 5) |
421 | link_speed = link_speeds[mb[1]]; | |
422 | ha->link_data_rate = mb[1]; | |
423 | } | |
424 | ||
425 | DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", | |
426 | ha->host_no, link_speed)); | |
427 | qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", | |
428 | link_speed); | |
429 | ||
430 | ha->flags.management_server_logged_in = 0; | |
0971de7f | 431 | qla2x00_post_aen_work(ha, FCH_EVT_LINKUP, ha->link_data_rate); |
1da177e4 LT |
432 | break; |
433 | ||
434 | case MBA_LOOP_DOWN: /* Loop Down Event */ | |
9a853f71 AV |
435 | DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n", |
436 | ha->host_no, mb[1])); | |
437 | qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]); | |
1da177e4 LT |
438 | |
439 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
440 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
441 | atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); | |
442 | ha->device_flags |= DFLG_NO_CABLE; | |
d97994dc | 443 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
444 | } |
445 | ||
2c3dfe3f SJ |
446 | if (ha->parent) { |
447 | atomic_set(&ha->vp_state, VP_FAILED); | |
448 | fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); | |
449 | } | |
450 | ||
1da177e4 | 451 | ha->flags.management_server_logged_in = 0; |
d8b45213 | 452 | ha->link_data_rate = PORT_SPEED_UNKNOWN; |
cca5335c AV |
453 | if (ql2xfdmienable) |
454 | set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); | |
0971de7f | 455 | qla2x00_post_aen_work(ha, FCH_EVT_LINKDOWN, 0); |
1da177e4 LT |
456 | break; |
457 | ||
458 | case MBA_LIP_RESET: /* LIP reset occurred */ | |
1da177e4 LT |
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); | |
d97994dc | 467 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
468 | } |
469 | ||
2c3dfe3f SJ |
470 | if (ha->parent) { |
471 | atomic_set(&ha->vp_state, VP_FAILED); | |
472 | fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); | |
473 | } | |
474 | ||
1da177e4 LT |
475 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); |
476 | ||
477 | ha->operating_mode = LOOP; | |
478 | ha->flags.management_server_logged_in = 0; | |
0971de7f | 479 | qla2x00_post_aen_work(ha, FCH_EVT_LIPRESET, mb[1]); |
1da177e4 LT |
480 | break; |
481 | ||
482 | case MBA_POINT_TO_POINT: /* Point-to-Point */ | |
483 | if (IS_QLA2100(ha)) | |
484 | break; | |
485 | ||
486 | DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n", | |
487 | ha->host_no)); | |
488 | ||
489 | /* | |
490 | * Until there's a transition from loop down to loop up, treat | |
491 | * this as loop down only. | |
492 | */ | |
493 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
494 | atomic_set(&ha->loop_state, LOOP_DOWN); | |
495 | if (!atomic_read(&ha->loop_down_timer)) | |
496 | atomic_set(&ha->loop_down_timer, | |
497 | LOOP_DOWN_TIME); | |
d97994dc | 498 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
499 | } |
500 | ||
2c3dfe3f SJ |
501 | if (ha->parent) { |
502 | atomic_set(&ha->vp_state, VP_FAILED); | |
503 | fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); | |
504 | } | |
505 | ||
1da177e4 LT |
506 | if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { |
507 | set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); | |
508 | } | |
509 | set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); | |
4346b149 AV |
510 | |
511 | ha->flags.gpsc_supported = 1; | |
02d638b4 | 512 | ha->flags.management_server_logged_in = 0; |
1da177e4 LT |
513 | break; |
514 | ||
515 | case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ | |
516 | if (IS_QLA2100(ha)) | |
517 | break; | |
518 | ||
1da177e4 LT |
519 | DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " |
520 | "received.\n", | |
521 | ha->host_no)); | |
522 | qla_printk(KERN_INFO, ha, | |
523 | "Configuration change detected: value=%x.\n", mb[1]); | |
524 | ||
525 | if (atomic_read(&ha->loop_state) != LOOP_DOWN) { | |
fa2a1ce5 | 526 | atomic_set(&ha->loop_state, LOOP_DOWN); |
1da177e4 LT |
527 | if (!atomic_read(&ha->loop_down_timer)) |
528 | atomic_set(&ha->loop_down_timer, | |
529 | LOOP_DOWN_TIME); | |
d97994dc | 530 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
531 | } |
532 | ||
2c3dfe3f SJ |
533 | if (ha->parent) { |
534 | atomic_set(&ha->vp_state, VP_FAILED); | |
535 | fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); | |
536 | } | |
537 | ||
1da177e4 LT |
538 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); |
539 | set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
540 | break; | |
541 | ||
542 | case MBA_PORT_UPDATE: /* Port database update */ | |
1da177e4 LT |
543 | /* |
544 | * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET | |
545 | * event etc. earlier indicating loop is down) then process | |
546 | * it. Otherwise ignore it and Wait for RSCN to come in. | |
547 | */ | |
548 | atomic_set(&ha->loop_down_timer, 0); | |
549 | if (atomic_read(&ha->loop_state) != LOOP_DOWN && | |
550 | atomic_read(&ha->loop_state) != LOOP_DEAD) { | |
551 | DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " | |
9a853f71 AV |
552 | "ignored %04x/%04x/%04x.\n", ha->host_no, mb[1], |
553 | mb[2], mb[3])); | |
1da177e4 LT |
554 | break; |
555 | } | |
556 | ||
557 | DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", | |
558 | ha->host_no)); | |
559 | DEBUG(printk(KERN_INFO | |
9a853f71 AV |
560 | "scsi(%ld): Port database changed %04x %04x %04x.\n", |
561 | ha->host_no, mb[1], mb[2], mb[3])); | |
1da177e4 LT |
562 | |
563 | /* | |
564 | * Mark all devices as missing so we will login again. | |
565 | */ | |
566 | atomic_set(&ha->loop_state, LOOP_UP); | |
567 | ||
d97994dc | 568 | qla2x00_mark_all_devices_lost(ha, 1); |
1da177e4 LT |
569 | |
570 | ha->flags.rscn_queue_overflow = 1; | |
571 | ||
572 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
573 | set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); | |
1da177e4 LT |
574 | break; |
575 | ||
576 | case MBA_RSCN_UPDATE: /* State Change Registration */ | |
2c3dfe3f SJ |
577 | /* Check if the Vport has issued a SCR */ |
578 | if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags)) | |
579 | break; | |
f4a8dbc7 SS |
580 | /* Only handle SCNs for our Vport index. */ |
581 | if (ha->flags.npiv_supported && ha->vp_idx != mb[3]) | |
582 | break; | |
2c3dfe3f | 583 | |
1da177e4 LT |
584 | DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", |
585 | ha->host_no)); | |
586 | DEBUG(printk(KERN_INFO | |
f4a8dbc7 SS |
587 | "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n", |
588 | ha->host_no, mb[1], mb[2], mb[3])); | |
1da177e4 LT |
589 | |
590 | rscn_entry = (mb[1] << 16) | mb[2]; | |
591 | host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) | | |
592 | ha->d_id.b.al_pa; | |
593 | if (rscn_entry == host_pid) { | |
594 | DEBUG(printk(KERN_INFO | |
595 | "scsi(%ld): Ignoring RSCN update to local host " | |
596 | "port ID (%06x)\n", | |
597 | ha->host_no, host_pid)); | |
598 | break; | |
599 | } | |
600 | ||
601 | rscn_queue_index = ha->rscn_in_ptr + 1; | |
602 | if (rscn_queue_index == MAX_RSCN_COUNT) | |
603 | rscn_queue_index = 0; | |
604 | if (rscn_queue_index != ha->rscn_out_ptr) { | |
605 | ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry; | |
606 | ha->rscn_in_ptr = rscn_queue_index; | |
607 | } else { | |
608 | ha->flags.rscn_queue_overflow = 1; | |
609 | } | |
610 | ||
611 | atomic_set(&ha->loop_state, LOOP_UPDATE); | |
612 | atomic_set(&ha->loop_down_timer, 0); | |
613 | ha->flags.management_server_logged_in = 0; | |
614 | ||
615 | set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); | |
616 | set_bit(RSCN_UPDATE, &ha->dpc_flags); | |
0971de7f | 617 | qla2x00_post_aen_work(ha, FCH_EVT_RSCN, rscn_entry); |
1da177e4 LT |
618 | break; |
619 | ||
620 | /* case MBA_RIO_RESPONSE: */ | |
621 | case MBA_ZIO_RESPONSE: | |
622 | DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n", | |
623 | ha->host_no)); | |
624 | DEBUG(printk(KERN_INFO | |
625 | "scsi(%ld): [R|Z]IO update completion.\n", | |
626 | ha->host_no)); | |
627 | ||
e428924c | 628 | if (IS_FWI2_CAPABLE(ha)) |
4fdfefe5 AV |
629 | qla24xx_process_response_queue(ha); |
630 | else | |
631 | qla2x00_process_response_queue(ha); | |
1da177e4 | 632 | break; |
9a853f71 AV |
633 | |
634 | case MBA_DISCARD_RND_FRAME: | |
635 | DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " | |
636 | "%04x.\n", ha->host_no, mb[1], mb[2], mb[3])); | |
637 | break; | |
45ebeb56 AV |
638 | |
639 | case MBA_TRACE_NOTIFICATION: | |
640 | DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", | |
641 | ha->host_no, mb[1], mb[2])); | |
642 | break; | |
1da177e4 | 643 | } |
2c3dfe3f SJ |
644 | |
645 | if (!ha->parent && ha->num_vhosts) | |
646 | qla2x00_alert_all_vps(ha, mb); | |
1da177e4 LT |
647 | } |
648 | ||
df7baa50 AV |
649 | static void |
650 | qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data) | |
651 | { | |
652 | fc_port_t *fcport = data; | |
653 | ||
654 | if (fcport->ha->max_q_depth <= sdev->queue_depth) | |
655 | return; | |
656 | ||
657 | if (sdev->ordered_tags) | |
658 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, | |
659 | sdev->queue_depth + 1); | |
660 | else | |
661 | scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, | |
662 | sdev->queue_depth + 1); | |
663 | ||
664 | fcport->last_ramp_up = jiffies; | |
665 | ||
666 | DEBUG2(qla_printk(KERN_INFO, fcport->ha, | |
667 | "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n", | |
668 | fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, | |
669 | sdev->queue_depth)); | |
670 | } | |
671 | ||
672 | static void | |
673 | qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data) | |
674 | { | |
675 | fc_port_t *fcport = data; | |
676 | ||
677 | if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1)) | |
678 | return; | |
679 | ||
680 | DEBUG2(qla_printk(KERN_INFO, fcport->ha, | |
681 | "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n", | |
682 | fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, | |
683 | sdev->queue_depth)); | |
684 | } | |
685 | ||
686 | static inline void | |
687 | qla2x00_ramp_up_queue_depth(scsi_qla_host_t *ha, srb_t *sp) | |
688 | { | |
689 | fc_port_t *fcport; | |
690 | struct scsi_device *sdev; | |
691 | ||
692 | sdev = sp->cmd->device; | |
693 | if (sdev->queue_depth >= ha->max_q_depth) | |
694 | return; | |
695 | ||
696 | fcport = sp->fcport; | |
697 | if (time_before(jiffies, | |
698 | fcport->last_ramp_up + ql2xqfullrampup * HZ)) | |
699 | return; | |
700 | if (time_before(jiffies, | |
701 | fcport->last_queue_full + ql2xqfullrampup * HZ)) | |
702 | return; | |
703 | ||
df7baa50 AV |
704 | starget_for_each_device(sdev->sdev_target, fcport, |
705 | qla2x00_adjust_sdev_qdepth_up); | |
df7baa50 AV |
706 | } |
707 | ||
1da177e4 LT |
708 | /** |
709 | * qla2x00_process_completed_request() - Process a Fast Post response. | |
710 | * @ha: SCSI driver HA context | |
711 | * @index: SRB index | |
712 | */ | |
713 | static void | |
714 | qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) | |
715 | { | |
716 | srb_t *sp; | |
717 | ||
718 | /* Validate handle. */ | |
719 | if (index >= MAX_OUTSTANDING_COMMANDS) { | |
720 | DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", | |
721 | ha->host_no, index)); | |
722 | qla_printk(KERN_WARNING, ha, | |
723 | "Invalid SCSI completion handle %d.\n", index); | |
724 | ||
725 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
726 | return; | |
727 | } | |
728 | ||
729 | sp = ha->outstanding_cmds[index]; | |
730 | if (sp) { | |
731 | /* Free outstanding command slot. */ | |
732 | ha->outstanding_cmds[index] = NULL; | |
733 | ||
1da177e4 LT |
734 | CMD_COMPL_STATUS(sp->cmd) = 0L; |
735 | CMD_SCSI_STATUS(sp->cmd) = 0L; | |
736 | ||
737 | /* Save ISP completion status */ | |
738 | sp->cmd->result = DID_OK << 16; | |
df7baa50 AV |
739 | |
740 | qla2x00_ramp_up_queue_depth(ha, sp); | |
f4f051eb | 741 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
742 | } else { |
743 | DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n", | |
744 | ha->host_no)); | |
745 | qla_printk(KERN_WARNING, ha, | |
746 | "Invalid ISP SCSI completion handle\n"); | |
747 | ||
748 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
749 | } | |
750 | } | |
751 | ||
752 | /** | |
753 | * qla2x00_process_response_queue() - Process response queue entries. | |
754 | * @ha: SCSI driver HA context | |
755 | */ | |
756 | void | |
757 | qla2x00_process_response_queue(struct scsi_qla_host *ha) | |
758 | { | |
3d71644c | 759 | struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; |
1da177e4 LT |
760 | sts_entry_t *pkt; |
761 | uint16_t handle_cnt; | |
762 | uint16_t cnt; | |
763 | ||
764 | if (!ha->flags.online) | |
765 | return; | |
766 | ||
767 | while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { | |
768 | pkt = (sts_entry_t *)ha->response_ring_ptr; | |
769 | ||
770 | ha->rsp_ring_index++; | |
771 | if (ha->rsp_ring_index == ha->response_q_length) { | |
772 | ha->rsp_ring_index = 0; | |
773 | ha->response_ring_ptr = ha->response_ring; | |
774 | } else { | |
775 | ha->response_ring_ptr++; | |
776 | } | |
777 | ||
778 | if (pkt->entry_status != 0) { | |
779 | DEBUG3(printk(KERN_INFO | |
780 | "scsi(%ld): Process error entry.\n", ha->host_no)); | |
781 | ||
782 | qla2x00_error_entry(ha, pkt); | |
783 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
784 | wmb(); | |
785 | continue; | |
786 | } | |
787 | ||
788 | switch (pkt->entry_type) { | |
789 | case STATUS_TYPE: | |
790 | qla2x00_status_entry(ha, pkt); | |
791 | break; | |
792 | case STATUS_TYPE_21: | |
793 | handle_cnt = ((sts21_entry_t *)pkt)->handle_count; | |
794 | for (cnt = 0; cnt < handle_cnt; cnt++) { | |
795 | qla2x00_process_completed_request(ha, | |
796 | ((sts21_entry_t *)pkt)->handle[cnt]); | |
797 | } | |
798 | break; | |
799 | case STATUS_TYPE_22: | |
800 | handle_cnt = ((sts22_entry_t *)pkt)->handle_count; | |
801 | for (cnt = 0; cnt < handle_cnt; cnt++) { | |
802 | qla2x00_process_completed_request(ha, | |
803 | ((sts22_entry_t *)pkt)->handle[cnt]); | |
804 | } | |
805 | break; | |
806 | case STATUS_CONT_TYPE: | |
807 | qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); | |
808 | break; | |
1da177e4 LT |
809 | default: |
810 | /* Type Not Supported. */ | |
811 | DEBUG4(printk(KERN_WARNING | |
812 | "scsi(%ld): Received unknown response pkt type %x " | |
813 | "entry status=%x.\n", | |
814 | ha->host_no, pkt->entry_type, pkt->entry_status)); | |
815 | break; | |
816 | } | |
817 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
818 | wmb(); | |
819 | } | |
820 | ||
821 | /* Adjust ring index */ | |
822 | WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index); | |
823 | } | |
824 | ||
4733fcb1 AV |
825 | static inline void |
826 | qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len) | |
827 | { | |
828 | struct scsi_cmnd *cp = sp->cmd; | |
829 | ||
830 | if (sense_len >= SCSI_SENSE_BUFFERSIZE) | |
831 | sense_len = SCSI_SENSE_BUFFERSIZE; | |
832 | ||
833 | CMD_ACTUAL_SNSLEN(cp) = sense_len; | |
834 | sp->request_sense_length = sense_len; | |
835 | sp->request_sense_ptr = cp->sense_buffer; | |
836 | if (sp->request_sense_length > 32) | |
837 | sense_len = 32; | |
838 | ||
839 | memcpy(cp->sense_buffer, sense_data, sense_len); | |
840 | ||
841 | sp->request_sense_ptr += sense_len; | |
842 | sp->request_sense_length -= sense_len; | |
843 | if (sp->request_sense_length != 0) | |
844 | sp->ha->status_srb = sp; | |
845 | ||
846 | DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) " | |
847 | "cmd=%p pid=%ld\n", __func__, sp->ha->host_no, cp->device->channel, | |
848 | cp->device->id, cp->device->lun, cp, cp->serial_number)); | |
849 | if (sense_len) | |
850 | DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, | |
851 | CMD_ACTUAL_SNSLEN(cp))); | |
852 | } | |
853 | ||
1da177e4 LT |
854 | /** |
855 | * qla2x00_status_entry() - Process a Status IOCB entry. | |
856 | * @ha: SCSI driver HA context | |
857 | * @pkt: Entry pointer | |
858 | */ | |
859 | static void | |
9a853f71 | 860 | qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) |
1da177e4 | 861 | { |
1da177e4 | 862 | srb_t *sp; |
1da177e4 LT |
863 | fc_port_t *fcport; |
864 | struct scsi_cmnd *cp; | |
9a853f71 AV |
865 | sts_entry_t *sts; |
866 | struct sts_entry_24xx *sts24; | |
1da177e4 LT |
867 | uint16_t comp_status; |
868 | uint16_t scsi_status; | |
869 | uint8_t lscsi_status; | |
870 | int32_t resid; | |
ed17c71b | 871 | uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len; |
9a853f71 AV |
872 | uint8_t *rsp_info, *sense_data; |
873 | ||
874 | sts = (sts_entry_t *) pkt; | |
875 | sts24 = (struct sts_entry_24xx *) pkt; | |
e428924c | 876 | if (IS_FWI2_CAPABLE(ha)) { |
9a853f71 AV |
877 | comp_status = le16_to_cpu(sts24->comp_status); |
878 | scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; | |
879 | } else { | |
880 | comp_status = le16_to_cpu(sts->comp_status); | |
881 | scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; | |
882 | } | |
1da177e4 LT |
883 | |
884 | /* Fast path completion. */ | |
9a853f71 AV |
885 | if (comp_status == CS_COMPLETE && scsi_status == 0) { |
886 | qla2x00_process_completed_request(ha, sts->handle); | |
1da177e4 LT |
887 | |
888 | return; | |
889 | } | |
890 | ||
891 | /* Validate handle. */ | |
9a853f71 AV |
892 | if (sts->handle < MAX_OUTSTANDING_COMMANDS) { |
893 | sp = ha->outstanding_cmds[sts->handle]; | |
894 | ha->outstanding_cmds[sts->handle] = NULL; | |
1da177e4 LT |
895 | } else |
896 | sp = NULL; | |
897 | ||
898 | if (sp == NULL) { | |
899 | DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n", | |
900 | ha->host_no)); | |
901 | qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n"); | |
902 | ||
903 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
39a11240 | 904 | qla2xxx_wake_dpc(ha); |
1da177e4 LT |
905 | return; |
906 | } | |
907 | cp = sp->cmd; | |
908 | if (cp == NULL) { | |
909 | DEBUG2(printk("scsi(%ld): Command already returned back to OS " | |
75bc4190 | 910 | "pkt->handle=%d sp=%p.\n", ha->host_no, sts->handle, sp)); |
1da177e4 LT |
911 | qla_printk(KERN_WARNING, ha, |
912 | "Command is NULL: already returned to OS (sp=%p)\n", sp); | |
913 | ||
914 | return; | |
915 | } | |
916 | ||
9a853f71 AV |
917 | lscsi_status = scsi_status & STATUS_MASK; |
918 | CMD_ENTRY_STATUS(cp) = sts->entry_status; | |
1da177e4 LT |
919 | CMD_COMPL_STATUS(cp) = comp_status; |
920 | CMD_SCSI_STATUS(cp) = scsi_status; | |
921 | ||
bdf79621 | 922 | fcport = sp->fcport; |
1da177e4 | 923 | |
ed17c71b | 924 | sense_len = rsp_info_len = resid_len = fw_resid_len = 0; |
e428924c | 925 | if (IS_FWI2_CAPABLE(ha)) { |
9a853f71 AV |
926 | sense_len = le32_to_cpu(sts24->sense_len); |
927 | rsp_info_len = le32_to_cpu(sts24->rsp_data_len); | |
928 | resid_len = le32_to_cpu(sts24->rsp_residual_count); | |
ed17c71b | 929 | fw_resid_len = le32_to_cpu(sts24->residual_len); |
9a853f71 AV |
930 | rsp_info = sts24->data; |
931 | sense_data = sts24->data; | |
932 | host_to_fcp_swap(sts24->data, sizeof(sts24->data)); | |
933 | } else { | |
934 | sense_len = le16_to_cpu(sts->req_sense_length); | |
935 | rsp_info_len = le16_to_cpu(sts->rsp_info_len); | |
936 | resid_len = le32_to_cpu(sts->residual_length); | |
937 | rsp_info = sts->rsp_info; | |
938 | sense_data = sts->req_sense_data; | |
939 | } | |
940 | ||
1da177e4 LT |
941 | /* Check for any FCP transport errors. */ |
942 | if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { | |
9a853f71 | 943 | /* Sense data lies beyond any FCP RESPONSE data. */ |
e428924c | 944 | if (IS_FWI2_CAPABLE(ha)) |
9a853f71 AV |
945 | sense_data += rsp_info_len; |
946 | if (rsp_info_len > 3 && rsp_info[3]) { | |
1da177e4 LT |
947 | DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol " |
948 | "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..." | |
9a853f71 AV |
949 | "retrying command\n", ha->host_no, |
950 | cp->device->channel, cp->device->id, | |
951 | cp->device->lun, rsp_info_len, rsp_info[0], | |
952 | rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4], | |
953 | rsp_info[5], rsp_info[6], rsp_info[7])); | |
1da177e4 LT |
954 | |
955 | cp->result = DID_BUS_BUSY << 16; | |
f4f051eb | 956 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
957 | return; |
958 | } | |
959 | } | |
960 | ||
3e8ce320 AV |
961 | /* Check for overrun. */ |
962 | if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && | |
963 | scsi_status & SS_RESIDUAL_OVER) | |
964 | comp_status = CS_DATA_OVERRUN; | |
965 | ||
1da177e4 LT |
966 | /* |
967 | * Based on Host and scsi status generate status code for Linux | |
968 | */ | |
969 | switch (comp_status) { | |
970 | case CS_COMPLETE: | |
df7baa50 | 971 | case CS_QUEUE_FULL: |
1da177e4 LT |
972 | if (scsi_status == 0) { |
973 | cp->result = DID_OK << 16; | |
974 | break; | |
975 | } | |
976 | if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { | |
9a853f71 | 977 | resid = resid_len; |
385d70b4 | 978 | scsi_set_resid(cp, resid); |
1da177e4 | 979 | CMD_RESID_LEN(cp) = resid; |
0da69df1 AV |
980 | |
981 | if (!lscsi_status && | |
385d70b4 | 982 | ((unsigned)(scsi_bufflen(cp) - resid) < |
0da69df1 AV |
983 | cp->underflow)) { |
984 | qla_printk(KERN_INFO, ha, | |
385d70b4 FT |
985 | "scsi(%ld:%d:%d:%d): Mid-layer underflow " |
986 | "detected (%x of %x bytes)...returning " | |
987 | "error status.\n", ha->host_no, | |
988 | cp->device->channel, cp->device->id, | |
989 | cp->device->lun, resid, | |
990 | scsi_bufflen(cp)); | |
0da69df1 AV |
991 | |
992 | cp->result = DID_ERROR << 16; | |
993 | break; | |
994 | } | |
1da177e4 | 995 | } |
1da177e4 LT |
996 | cp->result = DID_OK << 16 | lscsi_status; |
997 | ||
df7baa50 AV |
998 | if (lscsi_status == SAM_STAT_TASK_SET_FULL) { |
999 | DEBUG2(printk(KERN_INFO | |
1000 | "scsi(%ld): QUEUE FULL status detected " | |
1001 | "0x%x-0x%x.\n", ha->host_no, comp_status, | |
1002 | scsi_status)); | |
1003 | ||
1004 | /* Adjust queue depth for all luns on the port. */ | |
1005 | fcport->last_queue_full = jiffies; | |
df7baa50 AV |
1006 | starget_for_each_device(cp->device->sdev_target, |
1007 | fcport, qla2x00_adjust_sdev_qdepth_down); | |
df7baa50 AV |
1008 | break; |
1009 | } | |
1da177e4 LT |
1010 | if (lscsi_status != SS_CHECK_CONDITION) |
1011 | break; | |
1012 | ||
b80ca4f7 | 1013 | memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
1da177e4 LT |
1014 | if (!(scsi_status & SS_SENSE_LEN_VALID)) |
1015 | break; | |
1016 | ||
4733fcb1 | 1017 | qla2x00_handle_sense(sp, sense_data, sense_len); |
1da177e4 LT |
1018 | break; |
1019 | ||
1020 | case CS_DATA_UNDERRUN: | |
9a853f71 | 1021 | resid = resid_len; |
ed17c71b | 1022 | /* Use F/W calculated residual length. */ |
6acf8190 AV |
1023 | if (IS_FWI2_CAPABLE(ha)) { |
1024 | if (scsi_status & SS_RESIDUAL_UNDER && | |
1025 | resid != fw_resid_len) { | |
1026 | scsi_status &= ~SS_RESIDUAL_UNDER; | |
1027 | lscsi_status = 0; | |
1028 | } | |
ed17c71b | 1029 | resid = fw_resid_len; |
6acf8190 | 1030 | } |
ed17c71b | 1031 | |
1da177e4 | 1032 | if (scsi_status & SS_RESIDUAL_UNDER) { |
385d70b4 | 1033 | scsi_set_resid(cp, resid); |
1da177e4 | 1034 | CMD_RESID_LEN(cp) = resid; |
e038a1be AV |
1035 | } else { |
1036 | DEBUG2(printk(KERN_INFO | |
1037 | "scsi(%ld:%d:%d) UNDERRUN status detected " | |
ed17c71b RA |
1038 | "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x " |
1039 | "os_underflow=0x%x\n", ha->host_no, | |
1040 | cp->device->id, cp->device->lun, comp_status, | |
1041 | scsi_status, resid_len, resid, cp->cmnd[0], | |
1042 | cp->underflow)); | |
e038a1be | 1043 | |
1da177e4 LT |
1044 | } |
1045 | ||
1046 | /* | |
fa2a1ce5 | 1047 | * Check to see if SCSI Status is non zero. If so report SCSI |
1da177e4 LT |
1048 | * Status. |
1049 | */ | |
1050 | if (lscsi_status != 0) { | |
1da177e4 LT |
1051 | cp->result = DID_OK << 16 | lscsi_status; |
1052 | ||
ffec28a3 AV |
1053 | if (lscsi_status == SAM_STAT_TASK_SET_FULL) { |
1054 | DEBUG2(printk(KERN_INFO | |
1055 | "scsi(%ld): QUEUE FULL status detected " | |
1056 | "0x%x-0x%x.\n", ha->host_no, comp_status, | |
1057 | scsi_status)); | |
1058 | ||
1059 | /* | |
1060 | * Adjust queue depth for all luns on the | |
1061 | * port. | |
1062 | */ | |
1063 | fcport->last_queue_full = jiffies; | |
1064 | starget_for_each_device( | |
1065 | cp->device->sdev_target, fcport, | |
1066 | qla2x00_adjust_sdev_qdepth_down); | |
1067 | break; | |
1068 | } | |
1da177e4 LT |
1069 | if (lscsi_status != SS_CHECK_CONDITION) |
1070 | break; | |
1071 | ||
b80ca4f7 | 1072 | memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
1da177e4 LT |
1073 | if (!(scsi_status & SS_SENSE_LEN_VALID)) |
1074 | break; | |
1075 | ||
4733fcb1 | 1076 | qla2x00_handle_sense(sp, sense_data, sense_len); |
9a853f71 | 1077 | |
8084fe16 SS |
1078 | /* |
1079 | * In case of a Underrun condition, set both the lscsi | |
1080 | * status and the completion status to appropriate | |
1081 | * values. | |
1082 | */ | |
1083 | if (resid && | |
4b39c1d9 | 1084 | ((unsigned)(scsi_bufflen(cp) - resid) < |
8084fe16 SS |
1085 | cp->underflow)) { |
1086 | DEBUG2(qla_printk(KERN_INFO, ha, | |
1087 | "scsi(%ld:%d:%d:%d): Mid-layer underflow " | |
1088 | "detected (%x of %x bytes)...returning " | |
1089 | "error status.\n", ha->host_no, | |
1090 | cp->device->channel, cp->device->id, | |
1091 | cp->device->lun, resid, | |
4b39c1d9 | 1092 | scsi_bufflen(cp))); |
8084fe16 SS |
1093 | |
1094 | cp->result = DID_ERROR << 16 | lscsi_status; | |
1095 | } | |
1da177e4 LT |
1096 | } else { |
1097 | /* | |
1098 | * If RISC reports underrun and target does not report | |
1099 | * it then we must have a lost frame, so tell upper | |
1100 | * layer to retry it by reporting a bus busy. | |
1101 | */ | |
1102 | if (!(scsi_status & SS_RESIDUAL_UNDER)) { | |
1103 | DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped " | |
385d70b4 FT |
1104 | "frame(s) detected (%x of %x bytes)..." |
1105 | "retrying command.\n", ha->host_no, | |
1106 | cp->device->channel, cp->device->id, | |
1107 | cp->device->lun, resid, | |
1108 | scsi_bufflen(cp))); | |
1da177e4 LT |
1109 | |
1110 | cp->result = DID_BUS_BUSY << 16; | |
1da177e4 LT |
1111 | break; |
1112 | } | |
1113 | ||
1114 | /* Handle mid-layer underflow */ | |
385d70b4 | 1115 | if ((unsigned)(scsi_bufflen(cp) - resid) < |
1da177e4 LT |
1116 | cp->underflow) { |
1117 | qla_printk(KERN_INFO, ha, | |
385d70b4 FT |
1118 | "scsi(%ld:%d:%d:%d): Mid-layer underflow " |
1119 | "detected (%x of %x bytes)...returning " | |
1120 | "error status.\n", ha->host_no, | |
1121 | cp->device->channel, cp->device->id, | |
1122 | cp->device->lun, resid, | |
1123 | scsi_bufflen(cp)); | |
1da177e4 LT |
1124 | |
1125 | cp->result = DID_ERROR << 16; | |
1126 | break; | |
1127 | } | |
1128 | ||
1129 | /* Everybody online, looking good... */ | |
1130 | cp->result = DID_OK << 16; | |
1131 | } | |
1132 | break; | |
1133 | ||
1134 | case CS_DATA_OVERRUN: | |
1135 | DEBUG2(printk(KERN_INFO | |
1136 | "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n", | |
9a853f71 AV |
1137 | ha->host_no, cp->device->id, cp->device->lun, comp_status, |
1138 | scsi_status)); | |
1da177e4 LT |
1139 | DEBUG2(printk(KERN_INFO |
1140 | "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", | |
1141 | cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3], | |
1142 | cp->cmnd[4], cp->cmnd[5])); | |
1143 | DEBUG2(printk(KERN_INFO | |
1144 | "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR " | |
1145 | "status!\n", | |
385d70b4 | 1146 | cp->serial_number, scsi_bufflen(cp), resid_len)); |
1da177e4 LT |
1147 | |
1148 | cp->result = DID_ERROR << 16; | |
1149 | break; | |
1150 | ||
1151 | case CS_PORT_LOGGED_OUT: | |
1152 | case CS_PORT_CONFIG_CHG: | |
1153 | case CS_PORT_BUSY: | |
1154 | case CS_INCOMPLETE: | |
1155 | case CS_PORT_UNAVAILABLE: | |
1156 | /* | |
1157 | * If the port is in Target Down state, return all IOs for this | |
1158 | * Target with DID_NO_CONNECT ELSE Queue the IOs in the | |
1159 | * retry_queue. | |
1160 | */ | |
1da177e4 LT |
1161 | DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down " |
1162 | "pid=%ld, compl status=0x%x, port state=0x%x\n", | |
9a853f71 AV |
1163 | ha->host_no, cp->device->id, cp->device->lun, |
1164 | cp->serial_number, comp_status, | |
1da177e4 LT |
1165 | atomic_read(&fcport->state))); |
1166 | ||
f4f051eb | 1167 | cp->result = DID_BUS_BUSY << 16; |
1da177e4 | 1168 | if (atomic_read(&fcport->state) == FCS_ONLINE) { |
d97994dc | 1169 | qla2x00_mark_device_lost(ha, fcport, 1, 1); |
1da177e4 | 1170 | } |
1da177e4 LT |
1171 | break; |
1172 | ||
1173 | case CS_RESET: | |
1174 | DEBUG2(printk(KERN_INFO | |
1175 | "scsi(%ld): RESET status detected 0x%x-0x%x.\n", | |
1176 | ha->host_no, comp_status, scsi_status)); | |
1177 | ||
f4f051eb | 1178 | cp->result = DID_RESET << 16; |
1da177e4 LT |
1179 | break; |
1180 | ||
1181 | case CS_ABORTED: | |
fa2a1ce5 | 1182 | /* |
1da177e4 LT |
1183 | * hv2.19.12 - DID_ABORT does not retry the request if we |
1184 | * aborted this request then abort otherwise it must be a | |
1185 | * reset. | |
1186 | */ | |
1187 | DEBUG2(printk(KERN_INFO | |
1188 | "scsi(%ld): ABORT status detected 0x%x-0x%x.\n", | |
1189 | ha->host_no, comp_status, scsi_status)); | |
1190 | ||
1191 | cp->result = DID_RESET << 16; | |
1192 | break; | |
1193 | ||
1194 | case CS_TIMEOUT: | |
9a853f71 AV |
1195 | cp->result = DID_BUS_BUSY << 16; |
1196 | ||
e428924c | 1197 | if (IS_FWI2_CAPABLE(ha)) { |
9a853f71 AV |
1198 | DEBUG2(printk(KERN_INFO |
1199 | "scsi(%ld:%d:%d:%d): TIMEOUT status detected " | |
1200 | "0x%x-0x%x\n", ha->host_no, cp->device->channel, | |
1201 | cp->device->id, cp->device->lun, comp_status, | |
1202 | scsi_status)); | |
1203 | break; | |
1204 | } | |
1da177e4 LT |
1205 | DEBUG2(printk(KERN_INFO |
1206 | "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x " | |
9a853f71 AV |
1207 | "sflags=%x.\n", ha->host_no, cp->device->channel, |
1208 | cp->device->id, cp->device->lun, comp_status, scsi_status, | |
1209 | le16_to_cpu(sts->status_flags))); | |
1da177e4 | 1210 | |
9a853f71 AV |
1211 | /* Check to see if logout occurred. */ |
1212 | if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT)) | |
d97994dc | 1213 | qla2x00_mark_device_lost(ha, fcport, 1, 1); |
1da177e4 LT |
1214 | break; |
1215 | ||
1da177e4 LT |
1216 | default: |
1217 | DEBUG3(printk("scsi(%ld): Error detected (unknown status) " | |
9a853f71 | 1218 | "0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status)); |
1da177e4 LT |
1219 | qla_printk(KERN_INFO, ha, |
1220 | "Unknown status detected 0x%x-0x%x.\n", | |
1221 | comp_status, scsi_status); | |
1222 | ||
1223 | cp->result = DID_ERROR << 16; | |
1224 | break; | |
1225 | } | |
1226 | ||
1227 | /* Place command on done queue. */ | |
1228 | if (ha->status_srb == NULL) | |
f4f051eb | 1229 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
1230 | } |
1231 | ||
1232 | /** | |
1233 | * qla2x00_status_cont_entry() - Process a Status Continuations entry. | |
1234 | * @ha: SCSI driver HA context | |
1235 | * @pkt: Entry pointer | |
1236 | * | |
1237 | * Extended sense data. | |
1238 | */ | |
1239 | static void | |
1240 | qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) | |
1241 | { | |
1242 | uint8_t sense_sz = 0; | |
1243 | srb_t *sp = ha->status_srb; | |
1244 | struct scsi_cmnd *cp; | |
1245 | ||
1246 | if (sp != NULL && sp->request_sense_length != 0) { | |
1247 | cp = sp->cmd; | |
1248 | if (cp == NULL) { | |
1249 | DEBUG2(printk("%s(): Cmd already returned back to OS " | |
75bc4190 | 1250 | "sp=%p.\n", __func__, sp)); |
1da177e4 LT |
1251 | qla_printk(KERN_INFO, ha, |
1252 | "cmd is NULL: already returned to OS (sp=%p)\n", | |
fa2a1ce5 | 1253 | sp); |
1da177e4 LT |
1254 | |
1255 | ha->status_srb = NULL; | |
1256 | return; | |
1257 | } | |
1258 | ||
1259 | if (sp->request_sense_length > sizeof(pkt->data)) { | |
1260 | sense_sz = sizeof(pkt->data); | |
1261 | } else { | |
1262 | sense_sz = sp->request_sense_length; | |
1263 | } | |
1264 | ||
1265 | /* Move sense data. */ | |
e428924c | 1266 | if (IS_FWI2_CAPABLE(ha)) |
9a853f71 | 1267 | host_to_fcp_swap(pkt->data, sizeof(pkt->data)); |
1da177e4 LT |
1268 | memcpy(sp->request_sense_ptr, pkt->data, sense_sz); |
1269 | DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); | |
1270 | ||
1271 | sp->request_sense_ptr += sense_sz; | |
1272 | sp->request_sense_length -= sense_sz; | |
1273 | ||
1274 | /* Place command on done queue. */ | |
1275 | if (sp->request_sense_length == 0) { | |
1da177e4 | 1276 | ha->status_srb = NULL; |
f4f051eb | 1277 | qla2x00_sp_compl(ha, sp); |
1da177e4 LT |
1278 | } |
1279 | } | |
1280 | } | |
1281 | ||
1282 | /** | |
1283 | * qla2x00_error_entry() - Process an error entry. | |
1284 | * @ha: SCSI driver HA context | |
1285 | * @pkt: Entry pointer | |
1286 | */ | |
1287 | static void | |
9a853f71 | 1288 | qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) |
1da177e4 LT |
1289 | { |
1290 | srb_t *sp; | |
1291 | ||
1292 | #if defined(QL_DEBUG_LEVEL_2) | |
1293 | if (pkt->entry_status & RF_INV_E_ORDER) | |
1294 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); | |
1295 | else if (pkt->entry_status & RF_INV_E_COUNT) | |
1296 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); | |
1297 | else if (pkt->entry_status & RF_INV_E_PARAM) | |
fa2a1ce5 | 1298 | qla_printk(KERN_ERR, ha, |
1da177e4 LT |
1299 | "%s: Invalid Entry Parameter\n", __func__); |
1300 | else if (pkt->entry_status & RF_INV_E_TYPE) | |
1301 | qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); | |
1302 | else if (pkt->entry_status & RF_BUSY) | |
1303 | qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); | |
1304 | else | |
1305 | qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); | |
1306 | #endif | |
1307 | ||
1308 | /* Validate handle. */ | |
1309 | if (pkt->handle < MAX_OUTSTANDING_COMMANDS) | |
1310 | sp = ha->outstanding_cmds[pkt->handle]; | |
1311 | else | |
1312 | sp = NULL; | |
1313 | ||
1314 | if (sp) { | |
1315 | /* Free outstanding command slot. */ | |
1316 | ha->outstanding_cmds[pkt->handle] = NULL; | |
354d6b21 | 1317 | |
1da177e4 LT |
1318 | /* Bad payload or header */ |
1319 | if (pkt->entry_status & | |
1320 | (RF_INV_E_ORDER | RF_INV_E_COUNT | | |
1321 | RF_INV_E_PARAM | RF_INV_E_TYPE)) { | |
1322 | sp->cmd->result = DID_ERROR << 16; | |
1323 | } else if (pkt->entry_status & RF_BUSY) { | |
1324 | sp->cmd->result = DID_BUS_BUSY << 16; | |
1325 | } else { | |
1326 | sp->cmd->result = DID_ERROR << 16; | |
1327 | } | |
f4f051eb | 1328 | qla2x00_sp_compl(ha, sp); |
1da177e4 | 1329 | |
9a853f71 AV |
1330 | } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == |
1331 | COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) { | |
1da177e4 LT |
1332 | DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", |
1333 | ha->host_no)); | |
1334 | qla_printk(KERN_WARNING, ha, | |
1335 | "Error entry - invalid handle\n"); | |
1336 | ||
1337 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); | |
39a11240 | 1338 | qla2xxx_wake_dpc(ha); |
1da177e4 LT |
1339 | } |
1340 | } | |
1341 | ||
9a853f71 AV |
1342 | /** |
1343 | * qla24xx_mbx_completion() - Process mailbox command completions. | |
1344 | * @ha: SCSI driver HA context | |
1345 | * @mb0: Mailbox0 register | |
1346 | */ | |
1347 | static void | |
1348 | qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) | |
1349 | { | |
1350 | uint16_t cnt; | |
1351 | uint16_t __iomem *wptr; | |
1352 | struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; | |
1353 | ||
1354 | /* Load return mailbox registers. */ | |
1355 | ha->flags.mbox_int = 1; | |
1356 | ha->mailbox_out[0] = mb0; | |
1357 | wptr = (uint16_t __iomem *)®->mailbox1; | |
1358 | ||
1359 | for (cnt = 1; cnt < ha->mbx_count; cnt++) { | |
1360 | ha->mailbox_out[cnt] = RD_REG_WORD(wptr); | |
1361 | wptr++; | |
1362 | } | |
1363 | ||
1364 | if (ha->mcp) { | |
1365 | DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", | |
1366 | __func__, ha->host_no, ha->mcp->mb[0])); | |
1367 | } else { | |
1368 | DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", | |
1369 | __func__, ha->host_no)); | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | /** | |
1374 | * qla24xx_process_response_queue() - Process response queue entries. | |
1375 | * @ha: SCSI driver HA context | |
1376 | */ | |
1377 | void | |
1378 | qla24xx_process_response_queue(struct scsi_qla_host *ha) | |
1379 | { | |
1380 | struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; | |
1381 | struct sts_entry_24xx *pkt; | |
1382 | ||
1383 | if (!ha->flags.online) | |
1384 | return; | |
1385 | ||
1386 | while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { | |
1387 | pkt = (struct sts_entry_24xx *)ha->response_ring_ptr; | |
1388 | ||
1389 | ha->rsp_ring_index++; | |
1390 | if (ha->rsp_ring_index == ha->response_q_length) { | |
1391 | ha->rsp_ring_index = 0; | |
1392 | ha->response_ring_ptr = ha->response_ring; | |
1393 | } else { | |
1394 | ha->response_ring_ptr++; | |
1395 | } | |
1396 | ||
1397 | if (pkt->entry_status != 0) { | |
1398 | DEBUG3(printk(KERN_INFO | |
1399 | "scsi(%ld): Process error entry.\n", ha->host_no)); | |
1400 | ||
9a853f71 AV |
1401 | qla2x00_error_entry(ha, (sts_entry_t *) pkt); |
1402 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
1403 | wmb(); | |
1404 | continue; | |
1405 | } | |
1406 | ||
1407 | switch (pkt->entry_type) { | |
1408 | case STATUS_TYPE: | |
1409 | qla2x00_status_entry(ha, pkt); | |
1410 | break; | |
1411 | case STATUS_CONT_TYPE: | |
1412 | qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); | |
1413 | break; | |
2c3dfe3f SJ |
1414 | case VP_RPT_ID_IOCB_TYPE: |
1415 | qla24xx_report_id_acquisition(ha, | |
1416 | (struct vp_rpt_id_entry_24xx *)pkt); | |
1417 | break; | |
9a853f71 AV |
1418 | default: |
1419 | /* Type Not Supported. */ | |
1420 | DEBUG4(printk(KERN_WARNING | |
1421 | "scsi(%ld): Received unknown response pkt type %x " | |
1422 | "entry status=%x.\n", | |
1423 | ha->host_no, pkt->entry_type, pkt->entry_status)); | |
1424 | break; | |
1425 | } | |
1426 | ((response_t *)pkt)->signature = RESPONSE_PROCESSED; | |
1427 | wmb(); | |
1428 | } | |
1429 | ||
1430 | /* Adjust ring index */ | |
1431 | WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index); | |
1432 | } | |
1433 | ||
05236a05 AV |
1434 | static void |
1435 | qla2xxx_check_risc_status(scsi_qla_host_t *ha) | |
1436 | { | |
1437 | int rval; | |
1438 | uint32_t cnt; | |
1439 | struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; | |
1440 | ||
1441 | if (!IS_QLA25XX(ha)) | |
1442 | return; | |
1443 | ||
1444 | rval = QLA_SUCCESS; | |
1445 | WRT_REG_DWORD(®->iobase_addr, 0x7C00); | |
1446 | RD_REG_DWORD(®->iobase_addr); | |
1447 | WRT_REG_DWORD(®->iobase_window, 0x0001); | |
1448 | for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && | |
1449 | rval == QLA_SUCCESS; cnt--) { | |
1450 | if (cnt) { | |
1451 | WRT_REG_DWORD(®->iobase_window, 0x0001); | |
1452 | udelay(10); | |
1453 | } else | |
1454 | rval = QLA_FUNCTION_TIMEOUT; | |
1455 | } | |
1456 | if (rval == QLA_SUCCESS) | |
1457 | goto next_test; | |
1458 | ||
1459 | WRT_REG_DWORD(®->iobase_window, 0x0003); | |
1460 | for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && | |
1461 | rval == QLA_SUCCESS; cnt--) { | |
1462 | if (cnt) { | |
1463 | WRT_REG_DWORD(®->iobase_window, 0x0003); | |
1464 | udelay(10); | |
1465 | } else | |
1466 | rval = QLA_FUNCTION_TIMEOUT; | |
1467 | } | |
1468 | if (rval != QLA_SUCCESS) | |
1469 | goto done; | |
1470 | ||
1471 | next_test: | |
1472 | if (RD_REG_DWORD(®->iobase_c8) & BIT_3) | |
1473 | qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n"); | |
1474 | ||
1475 | done: | |
1476 | WRT_REG_DWORD(®->iobase_window, 0x0000); | |
1477 | RD_REG_DWORD(®->iobase_window); | |
1478 | } | |
1479 | ||
9a853f71 AV |
1480 | /** |
1481 | * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. | |
1482 | * @irq: | |
1483 | * @dev_id: SCSI driver HA context | |
9a853f71 AV |
1484 | * |
1485 | * Called by system whenever the host adapter generates an interrupt. | |
1486 | * | |
1487 | * Returns handled flag. | |
1488 | */ | |
1489 | irqreturn_t | |
7d12e780 | 1490 | qla24xx_intr_handler(int irq, void *dev_id) |
9a853f71 AV |
1491 | { |
1492 | scsi_qla_host_t *ha; | |
1493 | struct device_reg_24xx __iomem *reg; | |
1494 | int status; | |
9a853f71 AV |
1495 | unsigned long iter; |
1496 | uint32_t stat; | |
1497 | uint32_t hccr; | |
1498 | uint16_t mb[4]; | |
1499 | ||
1500 | ha = (scsi_qla_host_t *) dev_id; | |
1501 | if (!ha) { | |
1502 | printk(KERN_INFO | |
1503 | "%s(): NULL host pointer\n", __func__); | |
1504 | return IRQ_NONE; | |
1505 | } | |
1506 | ||
1507 | reg = &ha->iobase->isp24; | |
1508 | status = 0; | |
1509 | ||
c6952483 | 1510 | spin_lock(&ha->hardware_lock); |
9a853f71 AV |
1511 | for (iter = 50; iter--; ) { |
1512 | stat = RD_REG_DWORD(®->host_status); | |
1513 | if (stat & HSRX_RISC_PAUSED) { | |
14e660e6 SJ |
1514 | if (pci_channel_offline(ha->pdev)) |
1515 | break; | |
1516 | ||
cb8dacbf AV |
1517 | if (ha->hw_event_pause_errors == 0) |
1518 | qla2x00_post_hwe_work(ha, HW_EVENT_PARITY_ERR, | |
1519 | 0, MSW(stat), LSW(stat)); | |
1520 | else if (ha->hw_event_pause_errors < 0xffffffff) | |
1521 | ha->hw_event_pause_errors++; | |
1522 | ||
9a853f71 AV |
1523 | hccr = RD_REG_DWORD(®->hccr); |
1524 | ||
1525 | qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " | |
1526 | "Dumping firmware!\n", hccr); | |
05236a05 AV |
1527 | |
1528 | qla2xxx_check_risc_status(ha); | |
1529 | ||
fd34f556 | 1530 | ha->isp_ops->fw_dump(ha, 1); |
9a853f71 AV |
1531 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
1532 | break; | |
1533 | } else if ((stat & HSRX_RISC_INT) == 0) | |
1534 | break; | |
1535 | ||
1536 | switch (stat & 0xff) { | |
1537 | case 0x1: | |
1538 | case 0x2: | |
1539 | case 0x10: | |
1540 | case 0x11: | |
1541 | qla24xx_mbx_completion(ha, MSW(stat)); | |
1542 | status |= MBX_INTERRUPT; | |
1543 | ||
1544 | break; | |
1545 | case 0x12: | |
1546 | mb[0] = MSW(stat); | |
1547 | mb[1] = RD_REG_WORD(®->mailbox1); | |
1548 | mb[2] = RD_REG_WORD(®->mailbox2); | |
1549 | mb[3] = RD_REG_WORD(®->mailbox3); | |
1550 | qla2x00_async_event(ha, mb); | |
1551 | break; | |
1552 | case 0x13: | |
1553 | qla24xx_process_response_queue(ha); | |
1554 | break; | |
1555 | default: | |
1556 | DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " | |
1557 | "(%d).\n", | |
1558 | ha->host_no, stat & 0xff)); | |
1559 | break; | |
1560 | } | |
1561 | WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); | |
1562 | RD_REG_DWORD_RELAXED(®->hccr); | |
1563 | } | |
c6952483 | 1564 | spin_unlock(&ha->hardware_lock); |
9a853f71 AV |
1565 | |
1566 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && | |
1567 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
9a853f71 | 1568 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
0b05a1f0 | 1569 | complete(&ha->mbx_intr_comp); |
9a853f71 AV |
1570 | } |
1571 | ||
1572 | return IRQ_HANDLED; | |
1573 | } | |
1574 | ||
a8488abe AV |
1575 | static irqreturn_t |
1576 | qla24xx_msix_rsp_q(int irq, void *dev_id) | |
1577 | { | |
1578 | scsi_qla_host_t *ha; | |
1579 | struct device_reg_24xx __iomem *reg; | |
a8488abe AV |
1580 | |
1581 | ha = dev_id; | |
1582 | reg = &ha->iobase->isp24; | |
1583 | ||
c6952483 | 1584 | spin_lock(&ha->hardware_lock); |
a8488abe AV |
1585 | |
1586 | qla24xx_process_response_queue(ha); | |
a8488abe | 1587 | WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); |
a8488abe | 1588 | |
c6952483 | 1589 | spin_unlock(&ha->hardware_lock); |
a8488abe AV |
1590 | |
1591 | return IRQ_HANDLED; | |
1592 | } | |
1593 | ||
1594 | static irqreturn_t | |
1595 | qla24xx_msix_default(int irq, void *dev_id) | |
1596 | { | |
1597 | scsi_qla_host_t *ha; | |
1598 | struct device_reg_24xx __iomem *reg; | |
1599 | int status; | |
a8488abe AV |
1600 | uint32_t stat; |
1601 | uint32_t hccr; | |
1602 | uint16_t mb[4]; | |
1603 | ||
1604 | ha = dev_id; | |
1605 | reg = &ha->iobase->isp24; | |
1606 | status = 0; | |
1607 | ||
c6952483 | 1608 | spin_lock(&ha->hardware_lock); |
87f27015 | 1609 | do { |
a8488abe AV |
1610 | stat = RD_REG_DWORD(®->host_status); |
1611 | if (stat & HSRX_RISC_PAUSED) { | |
14e660e6 SJ |
1612 | if (pci_channel_offline(ha->pdev)) |
1613 | break; | |
1614 | ||
cb8dacbf AV |
1615 | if (ha->hw_event_pause_errors == 0) |
1616 | qla2x00_post_hwe_work(ha, HW_EVENT_PARITY_ERR, | |
1617 | 0, MSW(stat), LSW(stat)); | |
1618 | else if (ha->hw_event_pause_errors < 0xffffffff) | |
1619 | ha->hw_event_pause_errors++; | |
1620 | ||
a8488abe AV |
1621 | hccr = RD_REG_DWORD(®->hccr); |
1622 | ||
1623 | qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " | |
1624 | "Dumping firmware!\n", hccr); | |
05236a05 AV |
1625 | |
1626 | qla2xxx_check_risc_status(ha); | |
1627 | ||
fd34f556 | 1628 | ha->isp_ops->fw_dump(ha, 1); |
a8488abe AV |
1629 | set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); |
1630 | break; | |
1631 | } else if ((stat & HSRX_RISC_INT) == 0) | |
1632 | break; | |
1633 | ||
1634 | switch (stat & 0xff) { | |
1635 | case 0x1: | |
1636 | case 0x2: | |
1637 | case 0x10: | |
1638 | case 0x11: | |
1639 | qla24xx_mbx_completion(ha, MSW(stat)); | |
1640 | status |= MBX_INTERRUPT; | |
1641 | ||
1642 | break; | |
1643 | case 0x12: | |
1644 | mb[0] = MSW(stat); | |
1645 | mb[1] = RD_REG_WORD(®->mailbox1); | |
1646 | mb[2] = RD_REG_WORD(®->mailbox2); | |
1647 | mb[3] = RD_REG_WORD(®->mailbox3); | |
1648 | qla2x00_async_event(ha, mb); | |
1649 | break; | |
1650 | case 0x13: | |
1651 | qla24xx_process_response_queue(ha); | |
1652 | break; | |
1653 | default: | |
1654 | DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " | |
1655 | "(%d).\n", | |
1656 | ha->host_no, stat & 0xff)); | |
1657 | break; | |
1658 | } | |
1659 | WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); | |
87f27015 | 1660 | } while (0); |
c6952483 | 1661 | spin_unlock(&ha->hardware_lock); |
a8488abe AV |
1662 | |
1663 | if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && | |
1664 | (status & MBX_INTERRUPT) && ha->flags.mbox_int) { | |
a8488abe | 1665 | set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); |
0b05a1f0 | 1666 | complete(&ha->mbx_intr_comp); |
a8488abe AV |
1667 | } |
1668 | ||
1669 | return IRQ_HANDLED; | |
1670 | } | |
1671 | ||
1672 | /* Interrupt handling helpers. */ | |
1673 | ||
1674 | struct qla_init_msix_entry { | |
1675 | uint16_t entry; | |
1676 | uint16_t index; | |
1677 | const char *name; | |
476834c2 | 1678 | irq_handler_t handler; |
a8488abe AV |
1679 | }; |
1680 | ||
1681 | static struct qla_init_msix_entry imsix_entries[QLA_MSIX_ENTRIES] = { | |
1682 | { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT, | |
1683 | "qla2xxx (default)", qla24xx_msix_default }, | |
1684 | ||
1685 | { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q, | |
1686 | "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, | |
1687 | }; | |
1688 | ||
1689 | static void | |
1690 | qla24xx_disable_msix(scsi_qla_host_t *ha) | |
1691 | { | |
1692 | int i; | |
1693 | struct qla_msix_entry *qentry; | |
1694 | ||
1695 | for (i = 0; i < QLA_MSIX_ENTRIES; i++) { | |
1696 | qentry = &ha->msix_entries[imsix_entries[i].index]; | |
1697 | if (qentry->have_irq) | |
1698 | free_irq(qentry->msix_vector, ha); | |
1699 | } | |
1700 | pci_disable_msix(ha->pdev); | |
1701 | } | |
1702 | ||
1703 | static int | |
1704 | qla24xx_enable_msix(scsi_qla_host_t *ha) | |
1705 | { | |
1706 | int i, ret; | |
1707 | struct msix_entry entries[QLA_MSIX_ENTRIES]; | |
1708 | struct qla_msix_entry *qentry; | |
1709 | ||
1710 | for (i = 0; i < QLA_MSIX_ENTRIES; i++) | |
1711 | entries[i].entry = imsix_entries[i].entry; | |
1712 | ||
1713 | ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries)); | |
1714 | if (ret) { | |
1715 | qla_printk(KERN_WARNING, ha, | |
1716 | "MSI-X: Failed to enable support -- %d/%d\n", | |
1717 | QLA_MSIX_ENTRIES, ret); | |
1718 | goto msix_out; | |
1719 | } | |
1720 | ha->flags.msix_enabled = 1; | |
1721 | ||
1722 | for (i = 0; i < QLA_MSIX_ENTRIES; i++) { | |
1723 | qentry = &ha->msix_entries[imsix_entries[i].index]; | |
1724 | qentry->msix_vector = entries[i].vector; | |
1725 | qentry->msix_entry = entries[i].entry; | |
1726 | qentry->have_irq = 0; | |
1727 | ret = request_irq(qentry->msix_vector, | |
1728 | imsix_entries[i].handler, 0, imsix_entries[i].name, ha); | |
1729 | if (ret) { | |
1730 | qla_printk(KERN_WARNING, ha, | |
1731 | "MSI-X: Unable to register handler -- %x/%d.\n", | |
1732 | imsix_entries[i].index, ret); | |
1733 | qla24xx_disable_msix(ha); | |
1734 | goto msix_out; | |
1735 | } | |
1736 | qentry->have_irq = 1; | |
1737 | } | |
1738 | ||
1739 | msix_out: | |
1740 | return ret; | |
1741 | } | |
1742 | ||
1743 | int | |
1744 | qla2x00_request_irqs(scsi_qla_host_t *ha) | |
1745 | { | |
1746 | int ret; | |
963b0fdd | 1747 | device_reg_t __iomem *reg = ha->iobase; |
a8488abe AV |
1748 | |
1749 | /* If possible, enable MSI-X. */ | |
c3a2f0df | 1750 | if (!IS_QLA2432(ha) && !IS_QLA2532(ha)) |
a8488abe AV |
1751 | goto skip_msix; |
1752 | ||
c3a2f0df AV |
1753 | if (IS_QLA2432(ha) && (ha->chip_revision < QLA_MSIX_CHIP_REV_24XX || |
1754 | !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { | |
a8488abe AV |
1755 | DEBUG2(qla_printk(KERN_WARNING, ha, |
1756 | "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", | |
1757 | ha->chip_revision, ha->fw_attributes)); | |
1758 | ||
1759 | goto skip_msix; | |
1760 | } | |
1761 | ||
da7429f9 AV |
1762 | if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && |
1763 | (ha->pdev->subsystem_device == 0x7040 || | |
1764 | ha->pdev->subsystem_device == 0x7041 || | |
1765 | ha->pdev->subsystem_device == 0x1705)) { | |
1766 | DEBUG2(qla_printk(KERN_WARNING, ha, | |
1767 | "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X, 0x%X).\n", | |
1768 | ha->pdev->subsystem_vendor, | |
1769 | ha->pdev->subsystem_device)); | |
1770 | ||
1771 | goto skip_msi; | |
1772 | } | |
1773 | ||
a8488abe AV |
1774 | ret = qla24xx_enable_msix(ha); |
1775 | if (!ret) { | |
1776 | DEBUG2(qla_printk(KERN_INFO, ha, | |
1777 | "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, | |
1778 | ha->fw_attributes)); | |
963b0fdd | 1779 | goto clear_risc_ints; |
a8488abe AV |
1780 | } |
1781 | qla_printk(KERN_WARNING, ha, | |
1782 | "MSI-X: Falling back-to INTa mode -- %d.\n", ret); | |
1783 | skip_msix: | |
cbedb601 | 1784 | |
c3a2f0df | 1785 | if (!IS_QLA24XX(ha) && !IS_QLA2532(ha)) |
cbedb601 AV |
1786 | goto skip_msi; |
1787 | ||
1788 | ret = pci_enable_msi(ha->pdev); | |
1789 | if (!ret) { | |
1790 | DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n")); | |
1791 | ha->flags.msi_enabled = 1; | |
1792 | } | |
1793 | skip_msi: | |
1794 | ||
fd34f556 | 1795 | ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, |
a8488abe | 1796 | IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha); |
963b0fdd | 1797 | if (ret) { |
a8488abe AV |
1798 | qla_printk(KERN_WARNING, ha, |
1799 | "Failed to reserve interrupt %d already in use.\n", | |
1800 | ha->pdev->irq); | |
963b0fdd AV |
1801 | goto fail; |
1802 | } | |
1803 | ha->flags.inta_enabled = 1; | |
1804 | ha->host->irq = ha->pdev->irq; | |
1805 | clear_risc_ints: | |
1806 | ||
1807 | ha->isp_ops->disable_intrs(ha); | |
c6952483 | 1808 | spin_lock_irq(&ha->hardware_lock); |
963b0fdd AV |
1809 | if (IS_FWI2_CAPABLE(ha)) { |
1810 | WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); | |
1811 | WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); | |
1812 | } else { | |
1813 | WRT_REG_WORD(®->isp.semaphore, 0); | |
1814 | WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); | |
1815 | WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); | |
a8488abe | 1816 | } |
c6952483 | 1817 | spin_unlock_irq(&ha->hardware_lock); |
963b0fdd | 1818 | ha->isp_ops->enable_intrs(ha); |
a8488abe | 1819 | |
963b0fdd | 1820 | fail: |
a8488abe AV |
1821 | return ret; |
1822 | } | |
1823 | ||
1824 | void | |
1825 | qla2x00_free_irqs(scsi_qla_host_t *ha) | |
1826 | { | |
1827 | ||
1828 | if (ha->flags.msix_enabled) | |
1829 | qla24xx_disable_msix(ha); | |
cbedb601 | 1830 | else if (ha->flags.inta_enabled) { |
a8488abe | 1831 | free_irq(ha->host->irq, ha); |
cbedb601 AV |
1832 | pci_disable_msi(ha->pdev); |
1833 | } | |
a8488abe | 1834 | } |