1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8 #include <linux/delay.h>
9 #include <linux/pci.h>
10 #include <linux/ratelimit.h>
11 #include <linux/vmalloc.h>
12 #include <scsi/scsi_tcq.h>
13 #include <linux/utsname.h>
14
15
16 /* QLAFX00 specific Mailbox implementation functions */
17
18 /*
19 * qlafx00_mailbox_command
20 * Issue mailbox command and waits for completion.
21 *
22 * Input:
23 * ha = adapter block pointer.
24 * mcp = driver internal mbx struct pointer.
25 *
26 * Output:
27 * mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
28 *
29 * Returns:
30 * 0 : QLA_SUCCESS = cmd performed success
31 * 1 : QLA_FUNCTION_FAILED (error encountered)
32 * 6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
33 *
34 * Context:
35 * Kernel context.
36 */
37 static int
qlafx00_mailbox_command(scsi_qla_host_t * vha,struct mbx_cmd_32 * mcp)38 qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
39
40 {
41 int rval;
42 unsigned long flags = 0;
43 device_reg_t __iomem *reg;
44 uint8_t abort_active;
45 uint8_t io_lock_on;
46 uint16_t command = 0;
47 uint32_t *iptr;
48 uint32_t __iomem *optr;
49 uint32_t cnt;
50 uint32_t mboxes;
51 unsigned long wait_time;
52 struct qla_hw_data *ha = vha->hw;
53 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
54
55 if (ha->pdev->error_state > pci_channel_io_frozen) {
56 ql_log(ql_log_warn, vha, 0x115c,
57 "error_state is greater than pci_channel_io_frozen, "
58 "exiting.\n");
59 return QLA_FUNCTION_TIMEOUT;
60 }
61
62 if (vha->device_flags & DFLG_DEV_FAILED) {
63 ql_log(ql_log_warn, vha, 0x115f,
64 "Device in failed state, exiting.\n");
65 return QLA_FUNCTION_TIMEOUT;
66 }
67
68 reg = ha->iobase;
69 io_lock_on = base_vha->flags.init_done;
70
71 rval = QLA_SUCCESS;
72 abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
73
74 if (ha->flags.pci_channel_io_perm_failure) {
75 ql_log(ql_log_warn, vha, 0x1175,
76 "Perm failure on EEH timeout MBX, exiting.\n");
77 return QLA_FUNCTION_TIMEOUT;
78 }
79
80 if (ha->flags.isp82xx_fw_hung) {
81 /* Setting Link-Down error */
82 mcp->mb[0] = MBS_LINK_DOWN_ERROR;
83 ql_log(ql_log_warn, vha, 0x1176,
84 "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
85 rval = QLA_FUNCTION_FAILED;
86 goto premature_exit;
87 }
88
89 /*
90 * Wait for active mailbox commands to finish by waiting at most tov
91 * seconds. This is to serialize actual issuing of mailbox cmds during
92 * non ISP abort time.
93 */
94 if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
95 /* Timeout occurred. Return error. */
96 ql_log(ql_log_warn, vha, 0x1177,
97 "Cmd access timeout, cmd=0x%x, Exiting.\n",
98 mcp->mb[0]);
99 return QLA_FUNCTION_TIMEOUT;
100 }
101
102 ha->flags.mbox_busy = 1;
103 /* Save mailbox command for debug */
104 ha->mcp32 = mcp;
105
106 ql_dbg(ql_dbg_mbx, vha, 0x1178,
107 "Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);
108
109 spin_lock_irqsave(&ha->hardware_lock, flags);
110
111 /* Load mailbox registers. */
112 optr = (uint32_t __iomem *)®->ispfx00.mailbox0;
113
114 iptr = mcp->mb;
115 command = mcp->mb[0];
116 mboxes = mcp->out_mb;
117
118 for (cnt = 0; cnt < ha->mbx_count; cnt++) {
119 if (mboxes & BIT_0)
120 WRT_REG_DWORD(optr, *iptr);
121
122 mboxes >>= 1;
123 optr++;
124 iptr++;
125 }
126
127 /* Issue set host interrupt command to send cmd out. */
128 ha->flags.mbox_int = 0;
129 clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
130
131 ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
132 (uint8_t *)mcp->mb, 16);
133 ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
134 ((uint8_t *)mcp->mb + 0x10), 16);
135 ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
136 ((uint8_t *)mcp->mb + 0x20), 8);
137
138 /* Unlock mbx registers and wait for interrupt */
139 ql_dbg(ql_dbg_mbx, vha, 0x1179,
140 "Going to unlock irq & waiting for interrupts. "
141 "jiffies=%lx.\n", jiffies);
142
143 /* Wait for mbx cmd completion until timeout */
144 if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
145 set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
146
147 QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
148 spin_unlock_irqrestore(&ha->hardware_lock, flags);
149
150 wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
151 } else {
152 ql_dbg(ql_dbg_mbx, vha, 0x112c,
153 "Cmd=%x Polling Mode.\n", command);
154
155 QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
156 spin_unlock_irqrestore(&ha->hardware_lock, flags);
157
158 wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
159 while (!ha->flags.mbox_int) {
160 if (time_after(jiffies, wait_time))
161 break;
162
163 /* Check for pending interrupts. */
164 qla2x00_poll(ha->rsp_q_map[0]);
165
166 if (!ha->flags.mbox_int &&
167 !(IS_QLA2200(ha) &&
168 command == MBC_LOAD_RISC_RAM_EXTENDED))
169 usleep_range(10000, 11000);
170 } /* while */
171 ql_dbg(ql_dbg_mbx, vha, 0x112d,
172 "Waited %d sec.\n",
173 (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
174 }
175
176 /* Check whether we timed out */
177 if (ha->flags.mbox_int) {
178 uint32_t *iptr2;
179
180 ql_dbg(ql_dbg_mbx, vha, 0x112e,
181 "Cmd=%x completed.\n", command);
182
183 /* Got interrupt. Clear the flag. */
184 ha->flags.mbox_int = 0;
185 clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
186
187 if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
188 rval = QLA_FUNCTION_FAILED;
189
190 /* Load return mailbox registers. */
191 iptr2 = mcp->mb;
192 iptr = (uint32_t *)&ha->mailbox_out32[0];
193 mboxes = mcp->in_mb;
194 for (cnt = 0; cnt < ha->mbx_count; cnt++) {
195 if (mboxes & BIT_0)
196 *iptr2 = *iptr;
197
198 mboxes >>= 1;
199 iptr2++;
200 iptr++;
201 }
202 } else {
203
204 rval = QLA_FUNCTION_TIMEOUT;
205 }
206
207 ha->flags.mbox_busy = 0;
208
209 /* Clean up */
210 ha->mcp32 = NULL;
211
212 if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
213 ql_dbg(ql_dbg_mbx, vha, 0x113a,
214 "checking for additional resp interrupt.\n");
215
216 /* polling mode for non isp_abort commands. */
217 qla2x00_poll(ha->rsp_q_map[0]);
218 }
219
220 if (rval == QLA_FUNCTION_TIMEOUT &&
221 mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
222 if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
223 ha->flags.eeh_busy) {
224 /* not in dpc. schedule it for dpc to take over. */
225 ql_dbg(ql_dbg_mbx, vha, 0x115d,
226 "Timeout, schedule isp_abort_needed.\n");
227
228 if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
229 !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
230 !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
231
232 ql_log(ql_log_info, base_vha, 0x115e,
233 "Mailbox cmd timeout occurred, cmd=0x%x, "
234 "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
235 "abort.\n", command, mcp->mb[0],
236 ha->flags.eeh_busy);
237 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
238 qla2xxx_wake_dpc(vha);
239 }
240 } else if (!abort_active) {
241 /* call abort directly since we are in the DPC thread */
242 ql_dbg(ql_dbg_mbx, vha, 0x1160,
243 "Timeout, calling abort_isp.\n");
244
245 if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
246 !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
247 !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
248
249 ql_log(ql_log_info, base_vha, 0x1161,
250 "Mailbox cmd timeout occurred, cmd=0x%x, "
251 "mb[0]=0x%x. Scheduling ISP abort ",
252 command, mcp->mb[0]);
253
254 set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
255 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
256 if (ha->isp_ops->abort_isp(vha)) {
257 /* Failed. retry later. */
258 set_bit(ISP_ABORT_NEEDED,
259 &vha->dpc_flags);
260 }
261 clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
262 ql_dbg(ql_dbg_mbx, vha, 0x1162,
263 "Finished abort_isp.\n");
264 }
265 }
266 }
267
268 premature_exit:
269 /* Allow next mbx cmd to come in. */
270 complete(&ha->mbx_cmd_comp);
271
272 if (rval) {
273 ql_log(ql_log_warn, base_vha, 0x1163,
274 "**** Failed mbx[0]=%x, mb[1]=%x, mb[2]=%x, "
275 "mb[3]=%x, cmd=%x ****.\n",
276 mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command);
277 } else {
278 ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
279 }
280
281 return rval;
282 }
283
284 /*
285 * qlafx00_driver_shutdown
286 * Indicate a driver shutdown to firmware.
287 *
288 * Input:
289 * ha = adapter block pointer.
290 *
291 * Returns:
292 * local function return status code.
293 *
294 * Context:
295 * Kernel context.
296 */
297 static int
qlafx00_driver_shutdown(scsi_qla_host_t * vha,int tmo)298 qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
299 {
300 int rval;
301 struct mbx_cmd_32 mc;
302 struct mbx_cmd_32 *mcp = &mc;
303
304 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
305 "Entered %s.\n", __func__);
306
307 mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
308 mcp->out_mb = MBX_0;
309 mcp->in_mb = MBX_0;
310 if (tmo)
311 mcp->tov = tmo;
312 else
313 mcp->tov = MBX_TOV_SECONDS;
314 mcp->flags = 0;
315 rval = qlafx00_mailbox_command(vha, mcp);
316
317 if (rval != QLA_SUCCESS) {
318 ql_dbg(ql_dbg_mbx, vha, 0x1167,
319 "Failed=%x.\n", rval);
320 } else {
321 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
322 "Done %s.\n", __func__);
323 }
324
325 return rval;
326 }
327
328 /*
329 * qlafx00_get_firmware_state
330 * Get adapter firmware state.
331 *
332 * Input:
333 * ha = adapter block pointer.
334 * TARGET_QUEUE_LOCK must be released.
335 * ADAPTER_STATE_LOCK must be released.
336 *
337 * Returns:
338 * qla7xxx local function return status code.
339 *
340 * Context:
341 * Kernel context.
342 */
343 static int
qlafx00_get_firmware_state(scsi_qla_host_t * vha,uint32_t * states)344 qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
345 {
346 int rval;
347 struct mbx_cmd_32 mc;
348 struct mbx_cmd_32 *mcp = &mc;
349
350 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
351 "Entered %s.\n", __func__);
352
353 mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
354 mcp->out_mb = MBX_0;
355 mcp->in_mb = MBX_1|MBX_0;
356 mcp->tov = MBX_TOV_SECONDS;
357 mcp->flags = 0;
358 rval = qlafx00_mailbox_command(vha, mcp);
359
360 /* Return firmware states. */
361 states[0] = mcp->mb[1];
362
363 if (rval != QLA_SUCCESS) {
364 ql_dbg(ql_dbg_mbx, vha, 0x116a,
365 "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
366 } else {
367 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
368 "Done %s.\n", __func__);
369 }
370 return rval;
371 }
372
373 /*
374 * qlafx00_init_firmware
375 * Initialize adapter firmware.
376 *
377 * Input:
378 * ha = adapter block pointer.
379 * dptr = Initialization control block pointer.
380 * size = size of initialization control block.
381 * TARGET_QUEUE_LOCK must be released.
382 * ADAPTER_STATE_LOCK must be released.
383 *
384 * Returns:
385 * qlafx00 local function return status code.
386 *
387 * Context:
388 * Kernel context.
389 */
390 int
qlafx00_init_firmware(scsi_qla_host_t * vha,uint16_t size)391 qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
392 {
393 int rval;
394 struct mbx_cmd_32 mc;
395 struct mbx_cmd_32 *mcp = &mc;
396 struct qla_hw_data *ha = vha->hw;
397
398 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
399 "Entered %s.\n", __func__);
400
401 mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
402
403 mcp->mb[1] = 0;
404 mcp->mb[2] = MSD(ha->init_cb_dma);
405 mcp->mb[3] = LSD(ha->init_cb_dma);
406
407 mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
408 mcp->in_mb = MBX_0;
409 mcp->buf_size = size;
410 mcp->flags = MBX_DMA_OUT;
411 mcp->tov = MBX_TOV_SECONDS;
412 rval = qlafx00_mailbox_command(vha, mcp);
413
414 if (rval != QLA_SUCCESS) {
415 ql_dbg(ql_dbg_mbx, vha, 0x116d,
416 "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
417 } else {
418 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
419 "Done %s.\n", __func__);
420 }
421 return rval;
422 }
423
424 /*
425 * qlafx00_mbx_reg_test
426 */
427 static int
qlafx00_mbx_reg_test(scsi_qla_host_t * vha)428 qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
429 {
430 int rval;
431 struct mbx_cmd_32 mc;
432 struct mbx_cmd_32 *mcp = &mc;
433
434 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
435 "Entered %s.\n", __func__);
436
437
438 mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
439 mcp->mb[1] = 0xAAAA;
440 mcp->mb[2] = 0x5555;
441 mcp->mb[3] = 0xAA55;
442 mcp->mb[4] = 0x55AA;
443 mcp->mb[5] = 0xA5A5;
444 mcp->mb[6] = 0x5A5A;
445 mcp->mb[7] = 0x2525;
446 mcp->mb[8] = 0xBBBB;
447 mcp->mb[9] = 0x6666;
448 mcp->mb[10] = 0xBB66;
449 mcp->mb[11] = 0x66BB;
450 mcp->mb[12] = 0xB6B6;
451 mcp->mb[13] = 0x6B6B;
452 mcp->mb[14] = 0x3636;
453 mcp->mb[15] = 0xCCCC;
454
455
456 mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
457 MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
458 mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
459 MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
460 mcp->buf_size = 0;
461 mcp->flags = MBX_DMA_OUT;
462 mcp->tov = MBX_TOV_SECONDS;
463 rval = qlafx00_mailbox_command(vha, mcp);
464 if (rval == QLA_SUCCESS) {
465 if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
466 mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
467 rval = QLA_FUNCTION_FAILED;
468 if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
469 mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
470 rval = QLA_FUNCTION_FAILED;
471 if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
472 mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
473 rval = QLA_FUNCTION_FAILED;
474 if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
475 mcp->mb[31] != 0xCCCC)
476 rval = QLA_FUNCTION_FAILED;
477 }
478
479 if (rval != QLA_SUCCESS) {
480 ql_dbg(ql_dbg_mbx, vha, 0x1170,
481 "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
482 } else {
483 ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
484 "Done %s.\n", __func__);
485 }
486 return rval;
487 }
488
489 /**
490 * qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
491 * @ha: HA context
492 *
493 * Returns 0 on success.
494 */
495 int
qlafx00_pci_config(scsi_qla_host_t * vha)496 qlafx00_pci_config(scsi_qla_host_t *vha)
497 {
498 uint16_t w;
499 struct qla_hw_data *ha = vha->hw;
500
501 pci_set_master(ha->pdev);
502 pci_try_set_mwi(ha->pdev);
503
504 pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
505 w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
506 w &= ~PCI_COMMAND_INTX_DISABLE;
507 pci_write_config_word(ha->pdev, PCI_COMMAND, w);
508
509 /* PCIe -- adjust Maximum Read Request Size (2048). */
510 if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
511 pcie_set_readrq(ha->pdev, 2048);
512
513 ha->chip_revision = ha->pdev->revision;
514
515 return QLA_SUCCESS;
516 }
517
518 /**
519 * qlafx00_warm_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
520 * @ha: HA context
521 *
522 */
523 static inline void
qlafx00_soc_cpu_reset(scsi_qla_host_t * vha)524 qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
525 {
526 unsigned long flags = 0;
527 struct qla_hw_data *ha = vha->hw;
528 int i, core;
529 uint32_t cnt;
530
531 /* Set all 4 cores in reset */
532 for (i = 0; i < 4; i++) {
533 QLAFX00_SET_HBA_SOC_REG(ha,
534 (SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
535 }
536
537 /* Set all 4 core Clock gating control */
538 for (i = 0; i < 4; i++) {
539 QLAFX00_SET_HBA_SOC_REG(ha,
540 (SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
541 }
542
543 /* Reset all units in Fabric */
544 QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x11F0101));
545
546 /* Reset all interrupt control registers */
547 for (i = 0; i < 115; i++) {
548 QLAFX00_SET_HBA_SOC_REG(ha,
549 (SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
550 }
551
552 /* Reset Timers control registers. per core */
553 for (core = 0; core < 4; core++)
554 for (i = 0; i < 8; i++)
555 QLAFX00_SET_HBA_SOC_REG(ha,
556 (SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));
557
558 /* Reset per core IRQ ack register */
559 for (core = 0; core < 4; core++)
560 QLAFX00_SET_HBA_SOC_REG(ha,
561 (SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));
562
563 /* Set Fabric control and config to defaults */
564 QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
565 QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));
566
567 spin_lock_irqsave(&ha->hardware_lock, flags);
568
569 /* Kick in Fabric units */
570 QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));
571
572 /* Kick in Core0 to start boot process */
573 QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));
574
575 /* Wait 10secs for soft-reset to complete. */
576 for (cnt = 10; cnt; cnt--) {
577 msleep(1000);
578 barrier();
579 }
580 spin_unlock_irqrestore(&ha->hardware_lock, flags);
581 }
582
583 /**
584 * qlafx00_soft_reset() - Soft Reset ISPFx00.
585 * @ha: HA context
586 *
587 * Returns 0 on success.
588 */
589 void
qlafx00_soft_reset(scsi_qla_host_t * vha)590 qlafx00_soft_reset(scsi_qla_host_t *vha)
591 {
592 struct qla_hw_data *ha = vha->hw;
593
594 if (unlikely(pci_channel_offline(ha->pdev) &&
595 ha->flags.pci_channel_io_perm_failure))
596 return;
597
598 ha->isp_ops->disable_intrs(ha);
599 qlafx00_soc_cpu_reset(vha);
600 ha->isp_ops->enable_intrs(ha);
601 }
602
603 /**
604 * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
605 * @ha: HA context
606 *
607 * Returns 0 on success.
608 */
609 int
qlafx00_chip_diag(scsi_qla_host_t * vha)610 qlafx00_chip_diag(scsi_qla_host_t *vha)
611 {
612 int rval = 0;
613 struct qla_hw_data *ha = vha->hw;
614 struct req_que *req = ha->req_q_map[0];
615
616 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
617
618 rval = qlafx00_mbx_reg_test(vha);
619 if (rval) {
620 ql_log(ql_log_warn, vha, 0x1165,
621 "Failed mailbox send register test\n");
622 } else {
623 /* Flag a successful rval */
624 rval = QLA_SUCCESS;
625 }
626 return rval;
627 }
628
629 void
qlafx00_config_rings(struct scsi_qla_host * vha)630 qlafx00_config_rings(struct scsi_qla_host *vha)
631 {
632 struct qla_hw_data *ha = vha->hw;
633 struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
634 struct init_cb_fx *icb;
635 struct req_que *req = ha->req_q_map[0];
636 struct rsp_que *rsp = ha->rsp_q_map[0];
637
638 /* Setup ring parameters in initialization control block. */
639 icb = (struct init_cb_fx *)ha->init_cb;
640 icb->request_q_outpointer = __constant_cpu_to_le16(0);
641 icb->response_q_inpointer = __constant_cpu_to_le16(0);
642 icb->request_q_length = cpu_to_le16(req->length);
643 icb->response_q_length = cpu_to_le16(rsp->length);
644 icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
645 icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
646 icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
647 icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
648
649 WRT_REG_DWORD(®->req_q_in, 0);
650 WRT_REG_DWORD(®->req_q_out, 0);
651
652 WRT_REG_DWORD(®->rsp_q_in, 0);
653 WRT_REG_DWORD(®->rsp_q_out, 0);
654
655 /* PCI posting */
656 RD_REG_DWORD(®->rsp_q_out);
657 }
658
659 char *
qlafx00_pci_info_str(struct scsi_qla_host * vha,char * str)660 qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
661 {
662 struct qla_hw_data *ha = vha->hw;
663 int pcie_reg;
664
665 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
666 if (pcie_reg) {
667 strcpy(str, "PCIe iSA");
668 return str;
669 }
670 return str;
671 }
672
673 char *
qlafx00_fw_version_str(struct scsi_qla_host * vha,char * str)674 qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str)
675 {
676 struct qla_hw_data *ha = vha->hw;
677
678 sprintf(str, "%s", ha->mr.fw_version);
679 return str;
680 }
681
682 void
qlafx00_enable_intrs(struct qla_hw_data * ha)683 qlafx00_enable_intrs(struct qla_hw_data *ha)
684 {
685 unsigned long flags = 0;
686
687 spin_lock_irqsave(&ha->hardware_lock, flags);
688 ha->interrupts_on = 1;
689 QLAFX00_ENABLE_ICNTRL_REG(ha);
690 spin_unlock_irqrestore(&ha->hardware_lock, flags);
691 }
692
693 void
qlafx00_disable_intrs(struct qla_hw_data * ha)694 qlafx00_disable_intrs(struct qla_hw_data *ha)
695 {
696 unsigned long flags = 0;
697
698 spin_lock_irqsave(&ha->hardware_lock, flags);
699 ha->interrupts_on = 0;
700 QLAFX00_DISABLE_ICNTRL_REG(ha);
701 spin_unlock_irqrestore(&ha->hardware_lock, flags);
702 }
703
704 static void
qlafx00_tmf_iocb_timeout(void * data)705 qlafx00_tmf_iocb_timeout(void *data)
706 {
707 srb_t *sp = (srb_t *)data;
708 struct srb_iocb *tmf = &sp->u.iocb_cmd;
709
710 tmf->u.tmf.comp_status = CS_TIMEOUT;
711 complete(&tmf->u.tmf.comp);
712 }
713
714 static void
qlafx00_tmf_sp_done(void * data,void * ptr,int res)715 qlafx00_tmf_sp_done(void *data, void *ptr, int res)
716 {
717 srb_t *sp = (srb_t *)ptr;
718 struct srb_iocb *tmf = &sp->u.iocb_cmd;
719
720 complete(&tmf->u.tmf.comp);
721 }
722
723 static int
qlafx00_async_tm_cmd(fc_port_t * fcport,uint32_t flags,uint32_t lun,uint32_t tag)724 qlafx00_async_tm_cmd(fc_port_t *fcport, uint32_t flags,
725 uint32_t lun, uint32_t tag)
726 {
727 scsi_qla_host_t *vha = fcport->vha;
728 struct srb_iocb *tm_iocb;
729 srb_t *sp;
730 int rval = QLA_FUNCTION_FAILED;
731
732 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
733 if (!sp)
734 goto done;
735
736 tm_iocb = &sp->u.iocb_cmd;
737 sp->type = SRB_TM_CMD;
738 sp->name = "tmf";
739 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
740 tm_iocb->u.tmf.flags = flags;
741 tm_iocb->u.tmf.lun = lun;
742 tm_iocb->u.tmf.data = tag;
743 sp->done = qlafx00_tmf_sp_done;
744 tm_iocb->timeout = qlafx00_tmf_iocb_timeout;
745 init_completion(&tm_iocb->u.tmf.comp);
746
747 rval = qla2x00_start_sp(sp);
748 if (rval != QLA_SUCCESS)
749 goto done_free_sp;
750
751 ql_dbg(ql_dbg_async, vha, 0x507b,
752 "Task management command issued target_id=%x\n",
753 fcport->tgt_id);
754
755 wait_for_completion(&tm_iocb->u.tmf.comp);
756
757 rval = tm_iocb->u.tmf.comp_status == CS_COMPLETE ?
758 QLA_SUCCESS : QLA_FUNCTION_FAILED;
759
760 done_free_sp:
761 sp->free(vha, sp);
762 done:
763 return rval;
764 }
765
766 int
qlafx00_abort_target(fc_port_t * fcport,unsigned int l,int tag)767 qlafx00_abort_target(fc_port_t *fcport, unsigned int l, int tag)
768 {
769 return qlafx00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
770 }
771
772 int
qlafx00_lun_reset(fc_port_t * fcport,unsigned int l,int tag)773 qlafx00_lun_reset(fc_port_t *fcport, unsigned int l, int tag)
774 {
775 return qlafx00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
776 }
777
778 int
qlafx00_iospace_config(struct qla_hw_data * ha)779 qlafx00_iospace_config(struct qla_hw_data *ha)
780 {
781 if (pci_request_selected_regions(ha->pdev, ha->bars,
782 QLA2XXX_DRIVER_NAME)) {
783 ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
784 "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
785 pci_name(ha->pdev));
786 goto iospace_error_exit;
787 }
788
789 /* Use MMIO operations for all accesses. */
790 if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
791 ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
792 "Invalid pci I/O region size (%s).\n",
793 pci_name(ha->pdev));
794 goto iospace_error_exit;
795 }
796 if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
797 ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
798 "Invalid PCI mem BAR0 region size (%s), aborting\n",
799 pci_name(ha->pdev));
800 goto iospace_error_exit;
801 }
802
803 ha->cregbase =
804 ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
805 if (!ha->cregbase) {
806 ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
807 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
808 goto iospace_error_exit;
809 }
810
811 if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
812 ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
813 "region #2 not an MMIO resource (%s), aborting\n",
814 pci_name(ha->pdev));
815 goto iospace_error_exit;
816 }
817 if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
818 ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
819 "Invalid PCI mem BAR2 region size (%s), aborting\n",
820 pci_name(ha->pdev));
821 goto iospace_error_exit;
822 }
823
824 ha->iobase =
825 ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
826 if (!ha->iobase) {
827 ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
828 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
829 goto iospace_error_exit;
830 }
831
832 /* Determine queue resources */
833 ha->max_req_queues = ha->max_rsp_queues = 1;
834
835 ql_log_pci(ql_log_info, ha->pdev, 0x012c,
836 "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
837 ha->bars, ha->cregbase, ha->iobase);
838
839 return 0;
840
841 iospace_error_exit:
842 return -ENOMEM;
843 }
844
845 static void
qlafx00_save_queue_ptrs(struct scsi_qla_host * vha)846 qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
847 {
848 struct qla_hw_data *ha = vha->hw;
849 struct req_que *req = ha->req_q_map[0];
850 struct rsp_que *rsp = ha->rsp_q_map[0];
851
852 req->length_fx00 = req->length;
853 req->ring_fx00 = req->ring;
854 req->dma_fx00 = req->dma;
855
856 rsp->length_fx00 = rsp->length;
857 rsp->ring_fx00 = rsp->ring;
858 rsp->dma_fx00 = rsp->dma;
859
860 ql_dbg(ql_dbg_init, vha, 0x012d,
861 "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
862 "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
863 req->length_fx00, (u64)req->dma_fx00);
864
865 ql_dbg(ql_dbg_init, vha, 0x012e,
866 "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
867 "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
868 rsp->length_fx00, (u64)rsp->dma_fx00);
869 }
870
871 static int
qlafx00_config_queues(struct scsi_qla_host * vha)872 qlafx00_config_queues(struct scsi_qla_host *vha)
873 {
874 struct qla_hw_data *ha = vha->hw;
875 struct req_que *req = ha->req_q_map[0];
876 struct rsp_que *rsp = ha->rsp_q_map[0];
877 dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);
878
879 req->length = ha->req_que_len;
880 req->ring = (void *)ha->iobase + ha->req_que_off;
881 req->dma = bar2_hdl + ha->req_que_off;
882 if ((!req->ring) || (req->length == 0)) {
883 ql_log_pci(ql_log_info, ha->pdev, 0x012f,
884 "Unable to allocate memory for req_ring\n");
885 return QLA_FUNCTION_FAILED;
886 }
887
888 ql_dbg(ql_dbg_init, vha, 0x0130,
889 "req: %p req_ring pointer %p req len 0x%x "
890 "req off 0x%x\n, req->dma: 0x%llx",
891 req, req->ring, req->length,
892 ha->req_que_off, (u64)req->dma);
893
894 rsp->length = ha->rsp_que_len;
895 rsp->ring = (void *)ha->iobase + ha->rsp_que_off;
896 rsp->dma = bar2_hdl + ha->rsp_que_off;
897 if ((!rsp->ring) || (rsp->length == 0)) {
898 ql_log_pci(ql_log_info, ha->pdev, 0x0131,
899 "Unable to allocate memory for rsp_ring\n");
900 return QLA_FUNCTION_FAILED;
901 }
902
903 ql_dbg(ql_dbg_init, vha, 0x0132,
904 "rsp: %p rsp_ring pointer %p rsp len 0x%x "
905 "rsp off 0x%x, rsp->dma: 0x%llx\n",
906 rsp, rsp->ring, rsp->length,
907 ha->rsp_que_off, (u64)rsp->dma);
908
909 return QLA_SUCCESS;
910 }
911
912 static int
qlafx00_init_fw_ready(scsi_qla_host_t * vha)913 qlafx00_init_fw_ready(scsi_qla_host_t *vha)
914 {
915 int rval = 0;
916 unsigned long wtime;
917 uint16_t wait_time; /* Wait time */
918 struct qla_hw_data *ha = vha->hw;
919 struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
920 uint32_t aenmbx, aenmbx7 = 0;
921 uint32_t state[5];
922 bool done = false;
923
924 /* 30 seconds wait - Adjust if required */
925 wait_time = 30;
926
927 /* wait time before firmware ready */
928 wtime = jiffies + (wait_time * HZ);
929 do {
930 aenmbx = RD_REG_DWORD(®->aenmailbox0);
931 barrier();
932 ql_dbg(ql_dbg_mbx, vha, 0x0133,
933 "aenmbx: 0x%x\n", aenmbx);
934
935 switch (aenmbx) {
936 case MBA_FW_NOT_STARTED:
937 case MBA_FW_STARTING:
938 break;
939
940 case MBA_SYSTEM_ERR:
941 case MBA_REQ_TRANSFER_ERR:
942 case MBA_RSP_TRANSFER_ERR:
943 case MBA_FW_INIT_FAILURE:
944 qlafx00_soft_reset(vha);
945 break;
946
947 case MBA_FW_RESTART_CMPLT:
948 /* Set the mbx and rqstq intr code */
949 aenmbx7 = RD_REG_DWORD(®->aenmailbox7);
950 ha->mbx_intr_code = MSW(aenmbx7);
951 ha->rqstq_intr_code = LSW(aenmbx7);
952 ha->req_que_off = RD_REG_DWORD(®->aenmailbox1);
953 ha->rsp_que_off = RD_REG_DWORD(®->aenmailbox3);
954 ha->req_que_len = RD_REG_DWORD(®->aenmailbox5);
955 ha->rsp_que_len = RD_REG_DWORD(®->aenmailbox6);
956 WRT_REG_DWORD(®->aenmailbox0, 0);
957 RD_REG_DWORD_RELAXED(®->aenmailbox0);
958 ql_dbg(ql_dbg_init, vha, 0x0134,
959 "f/w returned mbx_intr_code: 0x%x, "
960 "rqstq_intr_code: 0x%x\n",
961 ha->mbx_intr_code, ha->rqstq_intr_code);
962 QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
963 rval = QLA_SUCCESS;
964 done = true;
965 break;
966
967 default:
968 /* If fw is apparently not ready. In order to continue,
969 * we might need to issue Mbox cmd, but the problem is
970 * that the DoorBell vector values that come with the
971 * 8060 AEN are most likely gone by now (and thus no
972 * bell would be rung on the fw side when mbox cmd is
973 * issued). We have to therefore grab the 8060 AEN
974 * shadow regs (filled in by FW when the last 8060
975 * AEN was being posted).
976 * Do the following to determine what is needed in
977 * order to get the FW ready:
978 * 1. reload the 8060 AEN values from the shadow regs
979 * 2. clear int status to get rid of possible pending
980 * interrupts
981 * 3. issue Get FW State Mbox cmd to determine fw state
982 * Set the mbx and rqstq intr code from Shadow Regs
983 */
984 aenmbx7 = RD_REG_DWORD(®->initval7);
985 ha->mbx_intr_code = MSW(aenmbx7);
986 ha->rqstq_intr_code = LSW(aenmbx7);
987 ha->req_que_off = RD_REG_DWORD(®->initval1);
988 ha->rsp_que_off = RD_REG_DWORD(®->initval3);
989 ha->req_que_len = RD_REG_DWORD(®->initval5);
990 ha->rsp_que_len = RD_REG_DWORD(®->initval6);
991 ql_dbg(ql_dbg_init, vha, 0x0135,
992 "f/w returned mbx_intr_code: 0x%x, "
993 "rqstq_intr_code: 0x%x\n",
994 ha->mbx_intr_code, ha->rqstq_intr_code);
995 QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
996
997 /* Get the FW state */
998 rval = qlafx00_get_firmware_state(vha, state);
999 if (rval != QLA_SUCCESS) {
1000 /* Retry if timer has not expired */
1001 break;
1002 }
1003
1004 if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
1005 /* Firmware is waiting to be
1006 * initialized by driver
1007 */
1008 rval = QLA_SUCCESS;
1009 done = true;
1010 break;
1011 }
1012
1013 /* Issue driver shutdown and wait until f/w recovers.
1014 * Driver should continue to poll until 8060 AEN is
1015 * received indicating firmware recovery.
1016 */
1017 ql_dbg(ql_dbg_init, vha, 0x0136,
1018 "Sending Driver shutdown fw_state 0x%x\n",
1019 state[0]);
1020
1021 rval = qlafx00_driver_shutdown(vha, 10);
1022 if (rval != QLA_SUCCESS) {
1023 rval = QLA_FUNCTION_FAILED;
1024 break;
1025 }
1026 msleep(500);
1027
1028 wtime = jiffies + (wait_time * HZ);
1029 break;
1030 }
1031
1032 if (!done) {
1033 if (time_after_eq(jiffies, wtime)) {
1034 ql_dbg(ql_dbg_init, vha, 0x0137,
1035 "Init f/w failed: aen[7]: 0x%x\n",
1036 RD_REG_DWORD(®->aenmailbox7));
1037 rval = QLA_FUNCTION_FAILED;
1038 done = true;
1039 break;
1040 }
1041 /* Delay for a while */
1042 msleep(500);
1043 }
1044 } while (!done);
1045
1046 if (rval)
1047 ql_dbg(ql_dbg_init, vha, 0x0138,
1048 "%s **** FAILED ****.\n", __func__);
1049 else
1050 ql_dbg(ql_dbg_init, vha, 0x0139,
1051 "%s **** SUCCESS ****.\n", __func__);
1052
1053 return rval;
1054 }
1055
1056 /*
1057 * qlafx00_fw_ready() - Waits for firmware ready.
1058 * @ha: HA context
1059 *
1060 * Returns 0 on success.
1061 */
1062 int
qlafx00_fw_ready(scsi_qla_host_t * vha)1063 qlafx00_fw_ready(scsi_qla_host_t *vha)
1064 {
1065 int rval;
1066 unsigned long wtime;
1067 uint16_t wait_time; /* Wait time if loop is coming ready */
1068 uint32_t state[5];
1069
1070 rval = QLA_SUCCESS;
1071
1072 wait_time = 10;
1073
1074 /* wait time before firmware ready */
1075 wtime = jiffies + (wait_time * HZ);
1076
1077 /* Wait for ISP to finish init */
1078 if (!vha->flags.init_done)
1079 ql_dbg(ql_dbg_init, vha, 0x013a,
1080 "Waiting for init to complete...\n");
1081
1082 do {
1083 rval = qlafx00_get_firmware_state(vha, state);
1084
1085 if (rval == QLA_SUCCESS) {
1086 if (state[0] == FSTATE_FX00_INITIALIZED) {
1087 ql_dbg(ql_dbg_init, vha, 0x013b,
1088 "fw_state=%x\n", state[0]);
1089 rval = QLA_SUCCESS;
1090 break;
1091 }
1092 }
1093 rval = QLA_FUNCTION_FAILED;
1094
1095 if (time_after_eq(jiffies, wtime))
1096 break;
1097
1098 /* Delay for a while */
1099 msleep(500);
1100
1101 ql_dbg(ql_dbg_init, vha, 0x013c,
1102 "fw_state=%x curr time=%lx.\n", state[0], jiffies);
1103 } while (1);
1104
1105
1106 if (rval)
1107 ql_dbg(ql_dbg_init, vha, 0x013d,
1108 "Firmware ready **** FAILED ****.\n");
1109 else
1110 ql_dbg(ql_dbg_init, vha, 0x013e,
1111 "Firmware ready **** SUCCESS ****.\n");
1112
1113 return rval;
1114 }
1115
1116 static int
qlafx00_find_all_targets(scsi_qla_host_t * vha,struct list_head * new_fcports)1117 qlafx00_find_all_targets(scsi_qla_host_t *vha,
1118 struct list_head *new_fcports)
1119 {
1120 int rval;
1121 uint16_t tgt_id;
1122 fc_port_t *fcport, *new_fcport;
1123 int found;
1124 struct qla_hw_data *ha = vha->hw;
1125
1126 rval = QLA_SUCCESS;
1127
1128 if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1129 return QLA_FUNCTION_FAILED;
1130
1131 if ((atomic_read(&vha->loop_down_timer) ||
1132 STATE_TRANSITION(vha))) {
1133 atomic_set(&vha->loop_down_timer, 0);
1134 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1135 return QLA_FUNCTION_FAILED;
1136 }
1137
1138 ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
1139 "Listing Target bit map...\n");
1140 ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha,
1141 0x2089, (uint8_t *)ha->gid_list, 32);
1142
1143 /* Allocate temporary rmtport for any new rmtports discovered. */
1144 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1145 if (new_fcport == NULL)
1146 return QLA_MEMORY_ALLOC_FAILED;
1147
1148 for_each_set_bit(tgt_id, (void *)ha->gid_list,
1149 QLAFX00_TGT_NODE_LIST_SIZE) {
1150
1151 /* Send get target node info */
1152 new_fcport->tgt_id = tgt_id;
1153 rval = qlafx00_fx_disc(vha, new_fcport,
1154 FXDISC_GET_TGT_NODE_INFO);
1155 if (rval != QLA_SUCCESS) {
1156 ql_log(ql_log_warn, vha, 0x208a,
1157 "Target info scan failed -- assuming zero-entry "
1158 "result...\n");
1159 continue;
1160 }
1161
1162 /* Locate matching device in database. */
1163 found = 0;
1164 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1165 if (memcmp(new_fcport->port_name,
1166 fcport->port_name, WWN_SIZE))
1167 continue;
1168
1169 found++;
1170
1171 /*
1172 * If tgt_id is same and state FCS_ONLINE, nothing
1173 * changed.
1174 */
1175 if (fcport->tgt_id == new_fcport->tgt_id &&
1176 atomic_read(&fcport->state) == FCS_ONLINE)
1177 break;
1178
1179 /*
1180 * Tgt ID changed or device was marked to be updated.
1181 */
1182 ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
1183 "TGT-ID Change(%s): Present tgt id: "
1184 "0x%x state: 0x%x "
1185 "wwnn = %llx wwpn = %llx.\n",
1186 __func__, fcport->tgt_id,
1187 atomic_read(&fcport->state),
1188 (unsigned long long)wwn_to_u64(fcport->node_name),
1189 (unsigned long long)wwn_to_u64(fcport->port_name));
1190
1191 ql_log(ql_log_info, vha, 0x208c,
1192 "TGT-ID Announce(%s): Discovered tgt "
1193 "id 0x%x wwnn = %llx "
1194 "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
1195 (unsigned long long)
1196 wwn_to_u64(new_fcport->node_name),
1197 (unsigned long long)
1198 wwn_to_u64(new_fcport->port_name));
1199
1200 if (atomic_read(&fcport->state) != FCS_ONLINE) {
1201 fcport->old_tgt_id = fcport->tgt_id;
1202 fcport->tgt_id = new_fcport->tgt_id;
1203 ql_log(ql_log_info, vha, 0x208d,
1204 "TGT-ID: New fcport Added: %p\n", fcport);
1205 qla2x00_update_fcport(vha, fcport);
1206 } else {
1207 ql_log(ql_log_info, vha, 0x208e,
1208 " Existing TGT-ID %x did not get "
1209 " offline event from firmware.\n",
1210 fcport->old_tgt_id);
1211 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1212 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1213 kfree(new_fcport);
1214 return rval;
1215 }
1216 break;
1217 }
1218
1219 if (found)
1220 continue;
1221
1222 /* If device was not in our fcports list, then add it. */
1223 list_add_tail(&new_fcport->list, new_fcports);
1224
1225 /* Allocate a new replacement fcport. */
1226 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
1227 if (new_fcport == NULL)
1228 return QLA_MEMORY_ALLOC_FAILED;
1229 }
1230
1231 kfree(new_fcport);
1232 return rval;
1233 }
1234
1235 /*
1236 * qlafx00_configure_all_targets
1237 * Setup target devices with node ID's.
1238 *
1239 * Input:
1240 * ha = adapter block pointer.
1241 *
1242 * Returns:
1243 * 0 = success.
1244 * BIT_0 = error
1245 */
1246 static int
qlafx00_configure_all_targets(scsi_qla_host_t * vha)1247 qlafx00_configure_all_targets(scsi_qla_host_t *vha)
1248 {
1249 int rval;
1250 fc_port_t *fcport, *rmptemp;
1251 LIST_HEAD(new_fcports);
1252
1253 rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1254 FXDISC_GET_TGT_NODE_LIST);
1255 if (rval != QLA_SUCCESS) {
1256 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1257 return rval;
1258 }
1259
1260 rval = qlafx00_find_all_targets(vha, &new_fcports);
1261 if (rval != QLA_SUCCESS) {
1262 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1263 return rval;
1264 }
1265
1266 /*
1267 * Delete all previous devices marked lost.
1268 */
1269 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1270 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1271 break;
1272
1273 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
1274 if (fcport->port_type != FCT_INITIATOR)
1275 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1276 }
1277 }
1278
1279 /*
1280 * Add the new devices to our devices list.
1281 */
1282 list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1283 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
1284 break;
1285
1286 qla2x00_update_fcport(vha, fcport);
1287 list_move_tail(&fcport->list, &vha->vp_fcports);
1288 ql_log(ql_log_info, vha, 0x208f,
1289 "Attach new target id 0x%x wwnn = %llx "
1290 "wwpn = %llx.\n",
1291 fcport->tgt_id,
1292 (unsigned long long)wwn_to_u64(fcport->node_name),
1293 (unsigned long long)wwn_to_u64(fcport->port_name));
1294 }
1295
1296 /* Free all new device structures not processed. */
1297 list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
1298 list_del(&fcport->list);
1299 kfree(fcport);
1300 }
1301
1302 return rval;
1303 }
1304
1305 /*
1306 * qlafx00_configure_devices
1307 * Updates Fibre Channel Device Database with what is actually on loop.
1308 *
1309 * Input:
1310 * ha = adapter block pointer.
1311 *
1312 * Returns:
1313 * 0 = success.
1314 * 1 = error.
1315 * 2 = database was full and device was not configured.
1316 */
1317 int
qlafx00_configure_devices(scsi_qla_host_t * vha)1318 qlafx00_configure_devices(scsi_qla_host_t *vha)
1319 {
1320 int rval;
1321 unsigned long flags, save_flags;
1322 rval = QLA_SUCCESS;
1323
1324 save_flags = flags = vha->dpc_flags;
1325
1326 ql_dbg(ql_dbg_disc, vha, 0x2090,
1327 "Configure devices -- dpc flags =0x%lx\n", flags);
1328
1329 rval = qlafx00_configure_all_targets(vha);
1330
1331 if (rval == QLA_SUCCESS) {
1332 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
1333 rval = QLA_FUNCTION_FAILED;
1334 } else {
1335 atomic_set(&vha->loop_state, LOOP_READY);
1336 ql_log(ql_log_info, vha, 0x2091,
1337 "Device Ready\n");
1338 }
1339 }
1340
1341 if (rval) {
1342 ql_dbg(ql_dbg_disc, vha, 0x2092,
1343 "%s *** FAILED ***.\n", __func__);
1344 } else {
1345 ql_dbg(ql_dbg_disc, vha, 0x2093,
1346 "%s: exiting normally.\n", __func__);
1347 }
1348 return rval;
1349 }
1350
1351 static void
qlafx00_abort_isp_cleanup(scsi_qla_host_t * vha)1352 qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha)
1353 {
1354 struct qla_hw_data *ha = vha->hw;
1355 fc_port_t *fcport;
1356
1357 vha->flags.online = 0;
1358 ha->flags.chip_reset_done = 0;
1359 ha->mr.fw_hbt_en = 0;
1360 clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1361 vha->qla_stats.total_isp_aborts++;
1362
1363 ql_log(ql_log_info, vha, 0x013f,
1364 "Performing ISP error recovery - ha = %p.\n", ha);
1365
1366 ha->isp_ops->reset_chip(vha);
1367
1368 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1369 atomic_set(&vha->loop_state, LOOP_DOWN);
1370 atomic_set(&vha->loop_down_timer,
1371 QLAFX00_LOOP_DOWN_TIME);
1372 } else {
1373 if (!atomic_read(&vha->loop_down_timer))
1374 atomic_set(&vha->loop_down_timer,
1375 QLAFX00_LOOP_DOWN_TIME);
1376 }
1377
1378 /* Clear all async request states across all VPs. */
1379 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1380 fcport->flags = 0;
1381 if (atomic_read(&fcport->state) == FCS_ONLINE)
1382 qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
1383 }
1384
1385 if (!ha->flags.eeh_busy) {
1386 /* Requeue all commands in outstanding command list. */
1387 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
1388 }
1389
1390 qla2x00_free_irqs(vha);
1391 set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1392
1393 /* Clear the Interrupts */
1394 QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1395
1396 ql_log(ql_log_info, vha, 0x0140,
1397 "%s Done done - ha=%p.\n", __func__, ha);
1398 }
1399
1400 /**
1401 * qlafx00_init_response_q_entries() - Initializes response queue entries.
1402 * @ha: HA context
1403 *
1404 * Beginning of request ring has initialization control block already built
1405 * by nvram config routine.
1406 *
1407 * Returns 0 on success.
1408 */
1409 void
qlafx00_init_response_q_entries(struct rsp_que * rsp)1410 qlafx00_init_response_q_entries(struct rsp_que *rsp)
1411 {
1412 uint16_t cnt;
1413 response_t *pkt;
1414
1415 rsp->ring_ptr = rsp->ring;
1416 rsp->ring_index = 0;
1417 rsp->status_srb = NULL;
1418 pkt = rsp->ring_ptr;
1419 for (cnt = 0; cnt < rsp->length; cnt++) {
1420 pkt->signature = RESPONSE_PROCESSED;
1421 WRT_REG_DWORD(&pkt->signature, RESPONSE_PROCESSED);
1422 pkt++;
1423 }
1424 }
1425
1426 int
qlafx00_rescan_isp(scsi_qla_host_t * vha)1427 qlafx00_rescan_isp(scsi_qla_host_t *vha)
1428 {
1429 uint32_t status = QLA_FUNCTION_FAILED;
1430 struct qla_hw_data *ha = vha->hw;
1431 struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1432 uint32_t aenmbx7;
1433
1434 qla2x00_request_irqs(ha, ha->rsp_q_map[0]);
1435
1436 aenmbx7 = RD_REG_DWORD(®->aenmailbox7);
1437 ha->mbx_intr_code = MSW(aenmbx7);
1438 ha->rqstq_intr_code = LSW(aenmbx7);
1439 ha->req_que_off = RD_REG_DWORD(®->aenmailbox1);
1440 ha->rsp_que_off = RD_REG_DWORD(®->aenmailbox3);
1441 ha->req_que_len = RD_REG_DWORD(®->aenmailbox5);
1442 ha->rsp_que_len = RD_REG_DWORD(®->aenmailbox6);
1443
1444 ql_dbg(ql_dbg_disc, vha, 0x2094,
1445 "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
1446 " Req que offset 0x%x Rsp que offset 0x%x\n",
1447 ha->mbx_intr_code, ha->rqstq_intr_code,
1448 ha->req_que_off, ha->rsp_que_len);
1449
1450 /* Clear the Interrupts */
1451 QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
1452
1453 status = qla2x00_init_rings(vha);
1454 if (!status) {
1455 vha->flags.online = 1;
1456
1457 /* if no cable then assume it's good */
1458 if ((vha->device_flags & DFLG_NO_CABLE))
1459 status = 0;
1460 /* Register system information */
1461 if (qlafx00_fx_disc(vha,
1462 &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
1463 ql_dbg(ql_dbg_disc, vha, 0x2095,
1464 "failed to register host info\n");
1465 }
1466 scsi_unblock_requests(vha->host);
1467 return status;
1468 }
1469
1470 void
qlafx00_timer_routine(scsi_qla_host_t * vha)1471 qlafx00_timer_routine(scsi_qla_host_t *vha)
1472 {
1473 struct qla_hw_data *ha = vha->hw;
1474 uint32_t fw_heart_beat;
1475 uint32_t aenmbx0;
1476 struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
1477
1478 /* Check firmware health */
1479 if (ha->mr.fw_hbt_cnt)
1480 ha->mr.fw_hbt_cnt--;
1481 else {
1482 if ((!ha->flags.mr_reset_hdlr_active) &&
1483 (!test_bit(UNLOADING, &vha->dpc_flags)) &&
1484 (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
1485 (ha->mr.fw_hbt_en)) {
1486 fw_heart_beat = RD_REG_DWORD(®->fwheartbeat);
1487 if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
1488 ha->mr.old_fw_hbt_cnt = fw_heart_beat;
1489 ha->mr.fw_hbt_miss_cnt = 0;
1490 } else {
1491 ha->mr.fw_hbt_miss_cnt++;
1492 if (ha->mr.fw_hbt_miss_cnt ==
1493 QLAFX00_HEARTBEAT_MISS_CNT) {
1494 set_bit(ISP_ABORT_NEEDED,
1495 &vha->dpc_flags);
1496 qla2xxx_wake_dpc(vha);
1497 ha->mr.fw_hbt_miss_cnt = 0;
1498 }
1499 }
1500 }
1501 ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
1502 }
1503
1504 if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
1505 /* Reset recovery to be performed in timer routine */
1506 aenmbx0 = RD_REG_DWORD(®->aenmailbox0);
1507 if (ha->mr.fw_reset_timer_exp) {
1508 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1509 qla2xxx_wake_dpc(vha);
1510 ha->mr.fw_reset_timer_exp = 0;
1511 } else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
1512 /* Wake up DPC to rescan the targets */
1513 set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
1514 clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
1515 qla2xxx_wake_dpc(vha);
1516 ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1517 } else if ((aenmbx0 == MBA_FW_STARTING) &&
1518 (!ha->mr.fw_hbt_en)) {
1519 ha->mr.fw_hbt_en = 1;
1520 } else if (!ha->mr.fw_reset_timer_tick) {
1521 if (aenmbx0 == ha->mr.old_aenmbx0_state)
1522 ha->mr.fw_reset_timer_exp = 1;
1523 ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
1524 } else if (aenmbx0 == 0xFFFFFFFF) {
1525 uint32_t data0, data1;
1526
1527 data0 = QLAFX00_RD_REG(ha,
1528 QLAFX00_BAR1_BASE_ADDR_REG);
1529 data1 = QLAFX00_RD_REG(ha,
1530 QLAFX00_PEX0_WIN0_BASE_ADDR_REG);
1531
1532 data0 &= 0xffff0000;
1533 data1 &= 0x0000ffff;
1534
1535 QLAFX00_WR_REG(ha,
1536 QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
1537 (data0 | data1));
1538 } else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
1539 ha->mr.fw_reset_timer_tick =
1540 QLAFX00_MAX_RESET_INTERVAL;
1541 }
1542 ha->mr.old_aenmbx0_state = aenmbx0;
1543 ha->mr.fw_reset_timer_tick--;
1544 }
1545 }
1546
1547 /*
1548 * qlfx00a_reset_initialize
1549 * Re-initialize after a iSA device reset.
1550 *
1551 * Input:
1552 * ha = adapter block pointer.
1553 *
1554 * Returns:
1555 * 0 = success
1556 */
1557 int
qlafx00_reset_initialize(scsi_qla_host_t * vha)1558 qlafx00_reset_initialize(scsi_qla_host_t *vha)
1559 {
1560 struct qla_hw_data *ha = vha->hw;
1561
1562 if (vha->device_flags & DFLG_DEV_FAILED) {
1563 ql_dbg(ql_dbg_init, vha, 0x0142,
1564 "Device in failed state\n");
1565 return QLA_SUCCESS;
1566 }
1567
1568 ha->flags.mr_reset_hdlr_active = 1;
1569
1570 if (vha->flags.online) {
1571 scsi_block_requests(vha->host);
1572 qlafx00_abort_isp_cleanup(vha);
1573 }
1574
1575 ql_log(ql_log_info, vha, 0x0143,
1576 "(%s): succeeded.\n", __func__);
1577 ha->flags.mr_reset_hdlr_active = 0;
1578 return QLA_SUCCESS;
1579 }
1580
1581 /*
1582 * qlafx00_abort_isp
1583 * Resets ISP and aborts all outstanding commands.
1584 *
1585 * Input:
1586 * ha = adapter block pointer.
1587 *
1588 * Returns:
1589 * 0 = success
1590 */
1591 int
qlafx00_abort_isp(scsi_qla_host_t * vha)1592 qlafx00_abort_isp(scsi_qla_host_t *vha)
1593 {
1594 struct qla_hw_data *ha = vha->hw;
1595
1596 if (vha->flags.online) {
1597 if (unlikely(pci_channel_offline(ha->pdev) &&
1598 ha->flags.pci_channel_io_perm_failure)) {
1599 clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
1600 return QLA_SUCCESS;
1601 }
1602
1603 scsi_block_requests(vha->host);
1604 qlafx00_abort_isp_cleanup(vha);
1605 }
1606
1607 ql_log(ql_log_info, vha, 0x0145,
1608 "(%s): succeeded.\n", __func__);
1609
1610 return QLA_SUCCESS;
1611 }
1612
1613 static inline fc_port_t*
qlafx00_get_fcport(struct scsi_qla_host * vha,int tgt_id)1614 qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
1615 {
1616 fc_port_t *fcport;
1617
1618 /* Check for matching device in remote port list. */
1619 fcport = NULL;
1620 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1621 if (fcport->tgt_id == tgt_id) {
1622 ql_dbg(ql_dbg_async, vha, 0x5072,
1623 "Matching fcport(%p) found with TGT-ID: 0x%x "
1624 "and Remote TGT_ID: 0x%x\n",
1625 fcport, fcport->tgt_id, tgt_id);
1626 break;
1627 }
1628 }
1629 return fcport;
1630 }
1631
1632 static void
qlafx00_tgt_detach(struct scsi_qla_host * vha,int tgt_id)1633 qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
1634 {
1635 fc_port_t *fcport;
1636
1637 ql_log(ql_log_info, vha, 0x5073,
1638 "Detach TGT-ID: 0x%x\n", tgt_id);
1639
1640 fcport = qlafx00_get_fcport(vha, tgt_id);
1641 if (!fcport)
1642 return;
1643
1644 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1645
1646 return;
1647 }
1648
1649 int
qlafx00_process_aen(struct scsi_qla_host * vha,struct qla_work_evt * evt)1650 qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
1651 {
1652 int rval = 0;
1653 uint32_t aen_code, aen_data;
1654
1655 aen_code = FCH_EVT_VENDOR_UNIQUE;
1656 aen_data = evt->u.aenfx.evtcode;
1657
1658 switch (evt->u.aenfx.evtcode) {
1659 case QLAFX00_MBA_PORT_UPDATE: /* Port database update */
1660 if (evt->u.aenfx.mbx[1] == 0) {
1661 if (evt->u.aenfx.mbx[2] == 1) {
1662 if (!vha->flags.fw_tgt_reported)
1663 vha->flags.fw_tgt_reported = 1;
1664 atomic_set(&vha->loop_down_timer, 0);
1665 atomic_set(&vha->loop_state, LOOP_UP);
1666 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1667 qla2xxx_wake_dpc(vha);
1668 } else if (evt->u.aenfx.mbx[2] == 2) {
1669 qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
1670 }
1671 } else if (evt->u.aenfx.mbx[1] == 0xffff) {
1672 if (evt->u.aenfx.mbx[2] == 1) {
1673 if (!vha->flags.fw_tgt_reported)
1674 vha->flags.fw_tgt_reported = 1;
1675 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1676 } else if (evt->u.aenfx.mbx[2] == 2) {
1677 vha->device_flags |= DFLG_NO_CABLE;
1678 qla2x00_mark_all_devices_lost(vha, 1);
1679 }
1680 }
1681 break;
1682 case QLAFX00_MBA_LINK_UP:
1683 aen_code = FCH_EVT_LINKUP;
1684 aen_data = 0;
1685 break;
1686 case QLAFX00_MBA_LINK_DOWN:
1687 aen_code = FCH_EVT_LINKDOWN;
1688 aen_data = 0;
1689 break;
1690 }
1691
1692 fc_host_post_event(vha->host, fc_get_event_number(),
1693 aen_code, aen_data);
1694
1695 return rval;
1696 }
1697
1698 static void
qlafx00_update_host_attr(scsi_qla_host_t * vha,struct port_info_data * pinfo)1699 qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
1700 {
1701 u64 port_name = 0, node_name = 0;
1702
1703 port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
1704 node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);
1705
1706 fc_host_node_name(vha->host) = node_name;
1707 fc_host_port_name(vha->host) = port_name;
1708 if (!pinfo->port_type)
1709 vha->hw->current_topology = ISP_CFG_F;
1710 if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
1711 atomic_set(&vha->loop_state, LOOP_READY);
1712 else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
1713 atomic_set(&vha->loop_state, LOOP_DOWN);
1714 vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
1715 }
1716
1717 static void
qla2x00_fxdisc_iocb_timeout(void * data)1718 qla2x00_fxdisc_iocb_timeout(void *data)
1719 {
1720 srb_t *sp = (srb_t *)data;
1721 struct srb_iocb *lio = &sp->u.iocb_cmd;
1722
1723 complete(&lio->u.fxiocb.fxiocb_comp);
1724 }
1725
1726 static void
qla2x00_fxdisc_sp_done(void * data,void * ptr,int res)1727 qla2x00_fxdisc_sp_done(void *data, void *ptr, int res)
1728 {
1729 srb_t *sp = (srb_t *)ptr;
1730 struct srb_iocb *lio = &sp->u.iocb_cmd;
1731
1732 complete(&lio->u.fxiocb.fxiocb_comp);
1733 }
1734
1735 int
qlafx00_fx_disc(scsi_qla_host_t * vha,fc_port_t * fcport,uint8_t fx_type)1736 qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t fx_type)
1737 {
1738 srb_t *sp;
1739 struct srb_iocb *fdisc;
1740 int rval = QLA_FUNCTION_FAILED;
1741 struct qla_hw_data *ha = vha->hw;
1742 struct host_system_info *phost_info;
1743 struct register_host_info *preg_hsi;
1744 struct new_utsname *p_sysid = NULL;
1745 struct timeval tv;
1746
1747 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1748 if (!sp)
1749 goto done;
1750
1751 fdisc = &sp->u.iocb_cmd;
1752 switch (fx_type) {
1753 case FXDISC_GET_CONFIG_INFO:
1754 fdisc->u.fxiocb.flags =
1755 SRB_FXDISC_RESP_DMA_VALID;
1756 fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
1757 break;
1758 case FXDISC_GET_PORT_INFO:
1759 fdisc->u.fxiocb.flags =
1760 SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1761 fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1762 fdisc->u.fxiocb.req_data = fcport->port_id;
1763 break;
1764 case FXDISC_GET_TGT_NODE_INFO:
1765 fdisc->u.fxiocb.flags =
1766 SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1767 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1768 fdisc->u.fxiocb.req_data = fcport->tgt_id;
1769 break;
1770 case FXDISC_GET_TGT_NODE_LIST:
1771 fdisc->u.fxiocb.flags =
1772 SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
1773 fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
1774 break;
1775 case FXDISC_REG_HOST_INFO:
1776 fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
1777 fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
1778 p_sysid = utsname();
1779 if (!p_sysid) {
1780 ql_log(ql_log_warn, vha, 0x303c,
1781 "Not able to get the system informtion\n");
1782 goto done_free_sp;
1783 }
1784 break;
1785 default:
1786 break;
1787 }
1788
1789 if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
1790 fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
1791 fdisc->u.fxiocb.req_len,
1792 &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
1793 if (!fdisc->u.fxiocb.req_addr)
1794 goto done_free_sp;
1795
1796 if (fx_type == FXDISC_REG_HOST_INFO) {
1797 preg_hsi = (struct register_host_info *)
1798 fdisc->u.fxiocb.req_addr;
1799 phost_info = &preg_hsi->hsi;
1800 memset(preg_hsi, 0, sizeof(struct register_host_info));
1801 phost_info->os_type = OS_TYPE_LINUX;
1802 strncpy(phost_info->sysname,
1803 p_sysid->sysname, SYSNAME_LENGTH);
1804 strncpy(phost_info->nodename,
1805 p_sysid->nodename, NODENAME_LENGTH);
1806 strncpy(phost_info->release,
1807 p_sysid->release, RELEASE_LENGTH);
1808 strncpy(phost_info->version,
1809 p_sysid->version, VERSION_LENGTH);
1810 strncpy(phost_info->machine,
1811 p_sysid->machine, MACHINE_LENGTH);
1812 strncpy(phost_info->domainname,
1813 p_sysid->domainname, DOMNAME_LENGTH);
1814 strncpy(phost_info->hostdriver,
1815 QLA2XXX_VERSION, VERSION_LENGTH);
1816 do_gettimeofday(&tv);
1817 preg_hsi->utc = (uint64_t)tv.tv_sec;
1818 ql_dbg(ql_dbg_init, vha, 0x0149,
1819 "ISP%04X: Host registration with firmware\n",
1820 ha->pdev->device);
1821 ql_dbg(ql_dbg_init, vha, 0x014a,
1822 "os_type = '%d', sysname = '%s', nodname = '%s'\n",
1823 phost_info->os_type,
1824 phost_info->sysname,
1825 phost_info->nodename);
1826 ql_dbg(ql_dbg_init, vha, 0x014b,
1827 "release = '%s', version = '%s'\n",
1828 phost_info->release,
1829 phost_info->version);
1830 ql_dbg(ql_dbg_init, vha, 0x014c,
1831 "machine = '%s' "
1832 "domainname = '%s', hostdriver = '%s'\n",
1833 phost_info->machine,
1834 phost_info->domainname,
1835 phost_info->hostdriver);
1836 ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
1837 (uint8_t *)phost_info,
1838 sizeof(struct host_system_info));
1839 }
1840 }
1841
1842 if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
1843 fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
1844 fdisc->u.fxiocb.rsp_len,
1845 &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
1846 if (!fdisc->u.fxiocb.rsp_addr)
1847 goto done_unmap_req;
1848 }
1849
1850 sp->type = SRB_FXIOCB_DCMD;
1851 sp->name = "fxdisc";
1852 qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1853 fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1854 fdisc->u.fxiocb.req_func_type = fx_type;
1855 sp->done = qla2x00_fxdisc_sp_done;
1856
1857 rval = qla2x00_start_sp(sp);
1858 if (rval != QLA_SUCCESS)
1859 goto done_unmap_dma;
1860
1861 wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);
1862
1863 if (fx_type == FXDISC_GET_CONFIG_INFO) {
1864 struct config_info_data *pinfo =
1865 (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
1866 memcpy(&vha->hw->mr.product_name, pinfo->product_name,
1867 sizeof(vha->hw->mr.product_name));
1868 memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
1869 sizeof(vha->hw->mr.symbolic_name));
1870 memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
1871 sizeof(vha->hw->mr.serial_num));
1872 memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
1873 sizeof(vha->hw->mr.hw_version));
1874 memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
1875 sizeof(vha->hw->mr.fw_version));
1876 strim(vha->hw->mr.fw_version);
1877 memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
1878 sizeof(vha->hw->mr.uboot_version));
1879 memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
1880 sizeof(vha->hw->mr.fru_serial_num));
1881 } else if (fx_type == FXDISC_GET_PORT_INFO) {
1882 struct port_info_data *pinfo =
1883 (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
1884 memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
1885 memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
1886 vha->d_id.b.domain = pinfo->port_id[0];
1887 vha->d_id.b.area = pinfo->port_id[1];
1888 vha->d_id.b.al_pa = pinfo->port_id[2];
1889 qlafx00_update_host_attr(vha, pinfo);
1890 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
1891 (uint8_t *)pinfo, 16);
1892 } else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
1893 struct qlafx00_tgt_node_info *pinfo =
1894 (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1895 memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
1896 memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
1897 fcport->port_type = FCT_TARGET;
1898 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
1899 (uint8_t *)pinfo, 16);
1900 } else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
1901 struct qlafx00_tgt_node_info *pinfo =
1902 (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
1903 ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
1904 (uint8_t *)pinfo, 16);
1905 memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
1906 }
1907 rval = fdisc->u.fxiocb.result;
1908
1909 done_unmap_dma:
1910 if (fdisc->u.fxiocb.rsp_addr)
1911 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
1912 fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);
1913
1914 done_unmap_req:
1915 if (fdisc->u.fxiocb.req_addr)
1916 dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
1917 fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
1918 done_free_sp:
1919 sp->free(vha, sp);
1920 done:
1921 return rval;
1922 }
1923
1924 static void
qlafx00_abort_iocb_timeout(void * data)1925 qlafx00_abort_iocb_timeout(void *data)
1926 {
1927 srb_t *sp = (srb_t *)data;
1928 struct srb_iocb *abt = &sp->u.iocb_cmd;
1929
1930 abt->u.abt.comp_status = CS_TIMEOUT;
1931 complete(&abt->u.abt.comp);
1932 }
1933
1934 static void
qlafx00_abort_sp_done(void * data,void * ptr,int res)1935 qlafx00_abort_sp_done(void *data, void *ptr, int res)
1936 {
1937 srb_t *sp = (srb_t *)ptr;
1938 struct srb_iocb *abt = &sp->u.iocb_cmd;
1939
1940 complete(&abt->u.abt.comp);
1941 }
1942
1943 static int
qlafx00_async_abt_cmd(srb_t * cmd_sp)1944 qlafx00_async_abt_cmd(srb_t *cmd_sp)
1945 {
1946 scsi_qla_host_t *vha = cmd_sp->fcport->vha;
1947 fc_port_t *fcport = cmd_sp->fcport;
1948 struct srb_iocb *abt_iocb;
1949 srb_t *sp;
1950 int rval = QLA_FUNCTION_FAILED;
1951
1952 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1953 if (!sp)
1954 goto done;
1955
1956 abt_iocb = &sp->u.iocb_cmd;
1957 sp->type = SRB_ABT_CMD;
1958 sp->name = "abort";
1959 qla2x00_init_timer(sp, FXDISC_TIMEOUT);
1960 abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
1961 sp->done = qlafx00_abort_sp_done;
1962 abt_iocb->timeout = qlafx00_abort_iocb_timeout;
1963 init_completion(&abt_iocb->u.abt.comp);
1964
1965 rval = qla2x00_start_sp(sp);
1966 if (rval != QLA_SUCCESS)
1967 goto done_free_sp;
1968
1969 ql_dbg(ql_dbg_async, vha, 0x507c,
1970 "Abort command issued - hdl=%x, target_id=%x\n",
1971 cmd_sp->handle, fcport->tgt_id);
1972
1973 wait_for_completion(&abt_iocb->u.abt.comp);
1974
1975 rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
1976 QLA_SUCCESS : QLA_FUNCTION_FAILED;
1977
1978 done_free_sp:
1979 sp->free(vha, sp);
1980 done:
1981 return rval;
1982 }
1983
1984 int
qlafx00_abort_command(srb_t * sp)1985 qlafx00_abort_command(srb_t *sp)
1986 {
1987 unsigned long flags = 0;
1988
1989 uint32_t handle;
1990 fc_port_t *fcport = sp->fcport;
1991 struct scsi_qla_host *vha = fcport->vha;
1992 struct qla_hw_data *ha = vha->hw;
1993 struct req_que *req = vha->req;
1994
1995 spin_lock_irqsave(&ha->hardware_lock, flags);
1996 for (handle = 1; handle < DEFAULT_OUTSTANDING_COMMANDS; handle++) {
1997 if (req->outstanding_cmds[handle] == sp)
1998 break;
1999 }
2000 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2001 if (handle == DEFAULT_OUTSTANDING_COMMANDS) {
2002 /* Command not found. */
2003 return QLA_FUNCTION_FAILED;
2004 }
2005 return qlafx00_async_abt_cmd(sp);
2006 }
2007
2008 /*
2009 * qlafx00_initialize_adapter
2010 * Initialize board.
2011 *
2012 * Input:
2013 * ha = adapter block pointer.
2014 *
2015 * Returns:
2016 * 0 = success
2017 */
2018 int
qlafx00_initialize_adapter(scsi_qla_host_t * vha)2019 qlafx00_initialize_adapter(scsi_qla_host_t *vha)
2020 {
2021 int rval;
2022 struct qla_hw_data *ha = vha->hw;
2023
2024 /* Clear adapter flags. */
2025 vha->flags.online = 0;
2026 ha->flags.chip_reset_done = 0;
2027 vha->flags.reset_active = 0;
2028 ha->flags.pci_channel_io_perm_failure = 0;
2029 ha->flags.eeh_busy = 0;
2030 ha->thermal_support = 0;
2031 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2032 atomic_set(&vha->loop_state, LOOP_DOWN);
2033 vha->device_flags = DFLG_NO_CABLE;
2034 vha->dpc_flags = 0;
2035 vha->flags.management_server_logged_in = 0;
2036 vha->marker_needed = 0;
2037 ha->isp_abort_cnt = 0;
2038 ha->beacon_blink_led = 0;
2039
2040 set_bit(0, ha->req_qid_map);
2041 set_bit(0, ha->rsp_qid_map);
2042
2043 ql_dbg(ql_dbg_init, vha, 0x0147,
2044 "Configuring PCI space...\n");
2045
2046 rval = ha->isp_ops->pci_config(vha);
2047 if (rval) {
2048 ql_log(ql_log_warn, vha, 0x0148,
2049 "Unable to configure PCI space.\n");
2050 return rval;
2051 }
2052
2053 rval = qlafx00_init_fw_ready(vha);
2054 if (rval != QLA_SUCCESS)
2055 return rval;
2056
2057 qlafx00_save_queue_ptrs(vha);
2058
2059 rval = qlafx00_config_queues(vha);
2060 if (rval != QLA_SUCCESS)
2061 return rval;
2062
2063 /*
2064 * Allocate the array of outstanding commands
2065 * now that we know the firmware resources.
2066 */
2067 rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
2068 if (rval != QLA_SUCCESS)
2069 return rval;
2070
2071 rval = qla2x00_init_rings(vha);
2072 ha->flags.chip_reset_done = 1;
2073
2074 return rval;
2075 }
2076
2077 uint32_t
qlafx00_fw_state_show(struct device * dev,struct device_attribute * attr,char * buf)2078 qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
2079 char *buf)
2080 {
2081 scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
2082 int rval = QLA_FUNCTION_FAILED;
2083 uint32_t state[1];
2084
2085 if (qla2x00_reset_active(vha))
2086 ql_log(ql_log_warn, vha, 0x70ce,
2087 "ISP reset active.\n");
2088 else if (!vha->hw->flags.eeh_busy) {
2089 rval = qlafx00_get_firmware_state(vha, state);
2090 }
2091 if (rval != QLA_SUCCESS)
2092 memset(state, -1, sizeof(state));
2093
2094 return state[0];
2095 }
2096
2097 void
qlafx00_get_host_speed(struct Scsi_Host * shost)2098 qlafx00_get_host_speed(struct Scsi_Host *shost)
2099 {
2100 struct qla_hw_data *ha = ((struct scsi_qla_host *)
2101 (shost_priv(shost)))->hw;
2102 u32 speed = FC_PORTSPEED_UNKNOWN;
2103
2104 switch (ha->link_data_rate) {
2105 case QLAFX00_PORT_SPEED_2G:
2106 speed = FC_PORTSPEED_2GBIT;
2107 break;
2108 case QLAFX00_PORT_SPEED_4G:
2109 speed = FC_PORTSPEED_4GBIT;
2110 break;
2111 case QLAFX00_PORT_SPEED_8G:
2112 speed = FC_PORTSPEED_8GBIT;
2113 break;
2114 case QLAFX00_PORT_SPEED_10G:
2115 speed = FC_PORTSPEED_10GBIT;
2116 break;
2117 }
2118 fc_host_speed(shost) = speed;
2119 }
2120
2121 /** QLAFX00 specific ISR implementation functions */
2122
2123 static inline void
qlafx00_handle_sense(srb_t * sp,uint8_t * sense_data,uint32_t par_sense_len,uint32_t sense_len,struct rsp_que * rsp,int res)2124 qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2125 uint32_t sense_len, struct rsp_que *rsp, int res)
2126 {
2127 struct scsi_qla_host *vha = sp->fcport->vha;
2128 struct scsi_cmnd *cp = GET_CMD_SP(sp);
2129 uint32_t track_sense_len;
2130
2131 SET_FW_SENSE_LEN(sp, sense_len);
2132
2133 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2134 sense_len = SCSI_SENSE_BUFFERSIZE;
2135
2136 SET_CMD_SENSE_LEN(sp, sense_len);
2137 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2138 track_sense_len = sense_len;
2139
2140 if (sense_len > par_sense_len)
2141 sense_len = par_sense_len;
2142
2143 memcpy(cp->sense_buffer, sense_data, sense_len);
2144
2145 SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);
2146
2147 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2148 track_sense_len -= sense_len;
2149 SET_CMD_SENSE_LEN(sp, track_sense_len);
2150
2151 ql_dbg(ql_dbg_io, vha, 0x304d,
2152 "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
2153 sense_len, par_sense_len, track_sense_len);
2154 if (GET_FW_SENSE_LEN(sp) > 0) {
2155 rsp->status_srb = sp;
2156 cp->result = res;
2157 }
2158
2159 if (sense_len) {
2160 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
2161 "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
2162 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
2163 cp);
2164 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
2165 cp->sense_buffer, sense_len);
2166 }
2167 }
2168
2169 static void
qlafx00_tm_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct tsk_mgmt_entry_fx00 * pkt,srb_t * sp,uint16_t sstatus,uint16_t cpstatus)2170 qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2171 struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2172 uint16_t sstatus, uint16_t cpstatus)
2173 {
2174 struct srb_iocb *tmf;
2175
2176 tmf = &sp->u.iocb_cmd;
2177 if (cpstatus != CS_COMPLETE ||
2178 (sstatus & SS_RESPONSE_INFO_LEN_VALID))
2179 cpstatus = CS_INCOMPLETE;
2180 tmf->u.tmf.comp_status = cpstatus;
2181 sp->done(vha, sp, 0);
2182 }
2183
2184 static void
qlafx00_abort_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct abort_iocb_entry_fx00 * pkt)2185 qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2186 struct abort_iocb_entry_fx00 *pkt)
2187 {
2188 const char func[] = "ABT_IOCB";
2189 srb_t *sp;
2190 struct srb_iocb *abt;
2191
2192 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2193 if (!sp)
2194 return;
2195
2196 abt = &sp->u.iocb_cmd;
2197 abt->u.abt.comp_status = le32_to_cpu(pkt->tgt_id_sts);
2198 sp->done(vha, sp, 0);
2199 }
2200
2201 static void
qlafx00_ioctl_iosb_entry(scsi_qla_host_t * vha,struct req_que * req,struct ioctl_iocb_entry_fx00 * pkt)2202 qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
2203 struct ioctl_iocb_entry_fx00 *pkt)
2204 {
2205 const char func[] = "IOSB_IOCB";
2206 srb_t *sp;
2207 struct fc_bsg_job *bsg_job;
2208 struct srb_iocb *iocb_job;
2209 int res;
2210 struct qla_mt_iocb_rsp_fx00 fstatus;
2211 uint8_t *fw_sts_ptr;
2212
2213 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2214 if (!sp)
2215 return;
2216
2217 if (sp->type == SRB_FXIOCB_DCMD) {
2218 iocb_job = &sp->u.iocb_cmd;
2219 iocb_job->u.fxiocb.seq_number = le32_to_cpu(pkt->seq_no);
2220 iocb_job->u.fxiocb.fw_flags = le32_to_cpu(pkt->fw_iotcl_flags);
2221 iocb_job->u.fxiocb.result = le32_to_cpu(pkt->status);
2222 if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
2223 iocb_job->u.fxiocb.req_data =
2224 le32_to_cpu(pkt->dataword_r);
2225 } else {
2226 bsg_job = sp->u.bsg_job;
2227
2228 memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));
2229
2230 fstatus.reserved_1 = pkt->reserved_0;
2231 fstatus.func_type = pkt->comp_func_num;
2232 fstatus.ioctl_flags = pkt->fw_iotcl_flags;
2233 fstatus.ioctl_data = pkt->dataword_r;
2234 fstatus.adapid = pkt->adapid;
2235 fstatus.adapid_hi = pkt->adapid_hi;
2236 fstatus.reserved_2 = pkt->reserved_1;
2237 fstatus.res_count = pkt->residuallen;
2238 fstatus.status = pkt->status;
2239 fstatus.seq_number = pkt->seq_no;
2240 memcpy(fstatus.reserved_3,
2241 pkt->reserved_2, 20 * sizeof(uint8_t));
2242
2243 fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
2244 sizeof(struct fc_bsg_reply);
2245
2246 memcpy(fw_sts_ptr, (uint8_t *)&fstatus,
2247 sizeof(struct qla_mt_iocb_rsp_fx00));
2248 bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
2249 sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);
2250
2251 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2252 sp->fcport->vha, 0x5080,
2253 (uint8_t *)pkt, sizeof(struct ioctl_iocb_entry_fx00));
2254
2255 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
2256 sp->fcport->vha, 0x5074,
2257 (uint8_t *)fw_sts_ptr, sizeof(struct qla_mt_iocb_rsp_fx00));
2258
2259 res = bsg_job->reply->result = DID_OK << 16;
2260 bsg_job->reply->reply_payload_rcv_len =
2261 bsg_job->reply_payload.payload_len;
2262 }
2263 sp->done(vha, sp, res);
2264 }
2265
2266 /**
2267 * qlafx00_status_entry() - Process a Status IOCB entry.
2268 * @ha: SCSI driver HA context
2269 * @pkt: Entry pointer
2270 */
2271 static void
qlafx00_status_entry(scsi_qla_host_t * vha,struct rsp_que * rsp,void * pkt)2272 qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2273 {
2274 srb_t *sp;
2275 fc_port_t *fcport;
2276 struct scsi_cmnd *cp;
2277 struct sts_entry_fx00 *sts;
2278 uint16_t comp_status;
2279 uint16_t scsi_status;
2280 uint16_t ox_id;
2281 uint8_t lscsi_status;
2282 int32_t resid;
2283 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2284 fw_resid_len;
2285 uint8_t *rsp_info = NULL, *sense_data = NULL;
2286 struct qla_hw_data *ha = vha->hw;
2287 uint32_t hindex, handle;
2288 uint16_t que;
2289 struct req_que *req;
2290 int logit = 1;
2291 int res = 0;
2292
2293 sts = (struct sts_entry_fx00 *) pkt;
2294
2295 comp_status = le16_to_cpu(sts->comp_status);
2296 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2297 hindex = sts->handle;
2298 handle = LSW(hindex);
2299
2300 que = MSW(hindex);
2301 req = ha->req_q_map[que];
2302
2303 /* Validate handle. */
2304 if (handle < req->num_outstanding_cmds)
2305 sp = req->outstanding_cmds[handle];
2306 else
2307 sp = NULL;
2308
2309 if (sp == NULL) {
2310 ql_dbg(ql_dbg_io, vha, 0x3034,
2311 "Invalid status handle (0x%x).\n", handle);
2312
2313 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2314 qla2xxx_wake_dpc(vha);
2315 return;
2316 }
2317
2318 if (sp->type == SRB_TM_CMD) {
2319 req->outstanding_cmds[handle] = NULL;
2320 qlafx00_tm_iocb_entry(vha, req, pkt, sp,
2321 scsi_status, comp_status);
2322 return;
2323 }
2324
2325 /* Fast path completion. */
2326 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2327 qla2x00_do_host_ramp_up(vha);
2328 qla2x00_process_completed_request(vha, req, handle);
2329 return;
2330 }
2331
2332 req->outstanding_cmds[handle] = NULL;
2333 cp = GET_CMD_SP(sp);
2334 if (cp == NULL) {
2335 ql_dbg(ql_dbg_io, vha, 0x3048,
2336 "Command already returned (0x%x/%p).\n",
2337 handle, sp);
2338
2339 return;
2340 }
2341
2342 lscsi_status = scsi_status & STATUS_MASK;
2343
2344 fcport = sp->fcport;
2345
2346 ox_id = 0;
2347 sense_len = par_sense_len = rsp_info_len = resid_len =
2348 fw_resid_len = 0;
2349 if (scsi_status & SS_SENSE_LEN_VALID)
2350 sense_len = le32_to_cpu(sts->sense_len);
2351 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2352 resid_len = le32_to_cpu(sts->residual_len);
2353 if (comp_status == CS_DATA_UNDERRUN)
2354 fw_resid_len = le32_to_cpu(sts->residual_len);
2355 rsp_info = sense_data = sts->data;
2356 par_sense_len = sizeof(sts->data);
2357
2358 /* Check for overrun. */
2359 if (comp_status == CS_COMPLETE &&
2360 scsi_status & SS_RESIDUAL_OVER)
2361 comp_status = CS_DATA_OVERRUN;
2362
2363 /*
2364 * Based on Host and scsi status generate status code for Linux
2365 */
2366 switch (comp_status) {
2367 case CS_COMPLETE:
2368 case CS_QUEUE_FULL:
2369 if (scsi_status == 0) {
2370 res = DID_OK << 16;
2371 break;
2372 }
2373 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2374 resid = resid_len;
2375 scsi_set_resid(cp, resid);
2376
2377 if (!lscsi_status &&
2378 ((unsigned)(scsi_bufflen(cp) - resid) <
2379 cp->underflow)) {
2380 ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
2381 "Mid-layer underflow "
2382 "detected (0x%x of 0x%x bytes).\n",
2383 resid, scsi_bufflen(cp));
2384
2385 res = DID_ERROR << 16;
2386 break;
2387 }
2388 }
2389 res = DID_OK << 16 | lscsi_status;
2390
2391 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2392 ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
2393 "QUEUE FULL detected.\n");
2394 break;
2395 }
2396 logit = 0;
2397 if (lscsi_status != SS_CHECK_CONDITION)
2398 break;
2399
2400 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2401 if (!(scsi_status & SS_SENSE_LEN_VALID))
2402 break;
2403
2404 qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2405 rsp, res);
2406 break;
2407
2408 case CS_DATA_UNDERRUN:
2409 /* Use F/W calculated residual length. */
2410 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2411 resid = fw_resid_len;
2412 else
2413 resid = resid_len;
2414 scsi_set_resid(cp, resid);
2415 if (scsi_status & SS_RESIDUAL_UNDER) {
2416 if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
2417 && fw_resid_len != resid_len) {
2418 ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
2419 "Dropped frame(s) detected "
2420 "(0x%x of 0x%x bytes).\n",
2421 resid, scsi_bufflen(cp));
2422
2423 res = DID_ERROR << 16 | lscsi_status;
2424 goto check_scsi_status;
2425 }
2426
2427 if (!lscsi_status &&
2428 ((unsigned)(scsi_bufflen(cp) - resid) <
2429 cp->underflow)) {
2430 ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
2431 "Mid-layer underflow "
2432 "detected (0x%x of 0x%x bytes, "
2433 "cp->underflow: 0x%x).\n",
2434 resid, scsi_bufflen(cp), cp->underflow);
2435
2436 res = DID_ERROR << 16;
2437 break;
2438 }
2439 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2440 lscsi_status != SAM_STAT_BUSY) {
2441 /*
2442 * scsi status of task set and busy are considered
2443 * to be task not completed.
2444 */
2445
2446 ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
2447 "Dropped frame(s) detected (0x%x "
2448 "of 0x%x bytes).\n", resid,
2449 scsi_bufflen(cp));
2450
2451 res = DID_ERROR << 16 | lscsi_status;
2452 goto check_scsi_status;
2453 } else {
2454 ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
2455 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2456 scsi_status, lscsi_status);
2457 }
2458
2459 res = DID_OK << 16 | lscsi_status;
2460 logit = 0;
2461
2462 check_scsi_status:
2463 /*
2464 * Check to see if SCSI Status is non zero. If so report SCSI
2465 * Status.
2466 */
2467 if (lscsi_status != 0) {
2468 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2469 ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
2470 "QUEUE FULL detected.\n");
2471 logit = 1;
2472 break;
2473 }
2474 if (lscsi_status != SS_CHECK_CONDITION)
2475 break;
2476
2477 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2478 if (!(scsi_status & SS_SENSE_LEN_VALID))
2479 break;
2480
2481 qlafx00_handle_sense(sp, sense_data, par_sense_len,
2482 sense_len, rsp, res);
2483 }
2484 break;
2485
2486 case CS_PORT_LOGGED_OUT:
2487 case CS_PORT_CONFIG_CHG:
2488 case CS_PORT_BUSY:
2489 case CS_INCOMPLETE:
2490 case CS_PORT_UNAVAILABLE:
2491 case CS_TIMEOUT:
2492 case CS_RESET:
2493
2494 /*
2495 * We are going to have the fc class block the rport
2496 * while we try to recover so instruct the mid layer
2497 * to requeue until the class decides how to handle this.
2498 */
2499 res = DID_TRANSPORT_DISRUPTED << 16;
2500
2501 ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
2502 "Port down status: port-state=0x%x.\n",
2503 atomic_read(&fcport->state));
2504
2505 if (atomic_read(&fcport->state) == FCS_ONLINE)
2506 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2507 break;
2508
2509 case CS_ABORTED:
2510 res = DID_RESET << 16;
2511 break;
2512
2513 default:
2514 res = DID_ERROR << 16;
2515 break;
2516 }
2517
2518 if (logit)
2519 ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2520 "FCP command status: 0x%x-0x%x (0x%x) "
2521 "nexus=%ld:%d:%d tgt_id: 0x%x lscsi_status: 0x%x"
2522 "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
2523 "rsp_info=0x%x resid=0x%x fw_resid=0x%x "
2524 "sense_len=0x%x, par_sense_len=0x%x, rsp_info_len=0x%x\n",
2525 comp_status, scsi_status, res, vha->host_no,
2526 cp->device->id, cp->device->lun, fcport->tgt_id,
2527 lscsi_status, cp->cmnd[0], cp->cmnd[1], cp->cmnd[2],
2528 cp->cmnd[3], cp->cmnd[4], cp->cmnd[5], cp->cmnd[6],
2529 cp->cmnd[7], cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp),
2530 rsp_info_len, resid_len, fw_resid_len, sense_len,
2531 par_sense_len, rsp_info_len);
2532
2533 if (!res)
2534 qla2x00_do_host_ramp_up(vha);
2535
2536 if (rsp->status_srb == NULL)
2537 sp->done(ha, sp, res);
2538 }
2539
2540 /**
2541 * qlafx00_status_cont_entry() - Process a Status Continuations entry.
2542 * @ha: SCSI driver HA context
2543 * @pkt: Entry pointer
2544 *
2545 * Extended sense data.
2546 */
2547 static void
qlafx00_status_cont_entry(struct rsp_que * rsp,sts_cont_entry_t * pkt)2548 qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2549 {
2550 uint8_t sense_sz = 0;
2551 struct qla_hw_data *ha = rsp->hw;
2552 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2553 srb_t *sp = rsp->status_srb;
2554 struct scsi_cmnd *cp;
2555 uint32_t sense_len;
2556 uint8_t *sense_ptr;
2557
2558 if (!sp) {
2559 ql_dbg(ql_dbg_io, vha, 0x3037,
2560 "no SP, sp = %p\n", sp);
2561 return;
2562 }
2563
2564 if (!GET_FW_SENSE_LEN(sp)) {
2565 ql_dbg(ql_dbg_io, vha, 0x304b,
2566 "no fw sense data, sp = %p\n", sp);
2567 return;
2568 }
2569 cp = GET_CMD_SP(sp);
2570 if (cp == NULL) {
2571 ql_log(ql_log_warn, vha, 0x303b,
2572 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2573
2574 rsp->status_srb = NULL;
2575 return;
2576 }
2577
2578 if (!GET_CMD_SENSE_LEN(sp)) {
2579 ql_dbg(ql_dbg_io, vha, 0x304c,
2580 "no sense data, sp = %p\n", sp);
2581 } else {
2582 sense_len = GET_CMD_SENSE_LEN(sp);
2583 sense_ptr = GET_CMD_SENSE_PTR(sp);
2584 ql_dbg(ql_dbg_io, vha, 0x304f,
2585 "sp=%p sense_len=0x%x sense_ptr=%p.\n",
2586 sp, sense_len, sense_ptr);
2587
2588 if (sense_len > sizeof(pkt->data))
2589 sense_sz = sizeof(pkt->data);
2590 else
2591 sense_sz = sense_len;
2592
2593 /* Move sense data. */
2594 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
2595 (uint8_t *)pkt, sizeof(sts_cont_entry_t));
2596 memcpy(sense_ptr, pkt->data, sense_sz);
2597 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
2598 sense_ptr, sense_sz);
2599
2600 sense_len -= sense_sz;
2601 sense_ptr += sense_sz;
2602
2603 SET_CMD_SENSE_PTR(sp, sense_ptr);
2604 SET_CMD_SENSE_LEN(sp, sense_len);
2605 }
2606 sense_len = GET_FW_SENSE_LEN(sp);
2607 sense_len = (sense_len > sizeof(pkt->data)) ?
2608 (sense_len - sizeof(pkt->data)) : 0;
2609 SET_FW_SENSE_LEN(sp, sense_len);
2610
2611 /* Place command on done queue. */
2612 if (sense_len == 0) {
2613 rsp->status_srb = NULL;
2614 sp->done(ha, sp, cp->result);
2615 }
2616 }
2617
2618 /**
2619 * qlafx00_multistatus_entry() - Process Multi response queue entries.
2620 * @ha: SCSI driver HA context
2621 */
2622 static void
qlafx00_multistatus_entry(struct scsi_qla_host * vha,struct rsp_que * rsp,void * pkt)2623 qlafx00_multistatus_entry(struct scsi_qla_host *vha,
2624 struct rsp_que *rsp, void *pkt)
2625 {
2626 srb_t *sp;
2627 struct multi_sts_entry_fx00 *stsmfx;
2628 struct qla_hw_data *ha = vha->hw;
2629 uint32_t handle, hindex, handle_count, i;
2630 uint16_t que;
2631 struct req_que *req;
2632 uint32_t *handle_ptr;
2633
2634 stsmfx = (struct multi_sts_entry_fx00 *) pkt;
2635
2636 handle_count = stsmfx->handle_count;
2637
2638 if (handle_count > MAX_HANDLE_COUNT) {
2639 ql_dbg(ql_dbg_io, vha, 0x3035,
2640 "Invalid handle count (0x%x).\n", handle_count);
2641 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2642 qla2xxx_wake_dpc(vha);
2643 return;
2644 }
2645
2646 handle_ptr = (uint32_t *) &stsmfx->handles[0];
2647
2648 for (i = 0; i < handle_count; i++) {
2649 hindex = le32_to_cpu(*handle_ptr);
2650 handle = LSW(hindex);
2651 que = MSW(hindex);
2652 req = ha->req_q_map[que];
2653
2654 /* Validate handle. */
2655 if (handle < req->num_outstanding_cmds)
2656 sp = req->outstanding_cmds[handle];
2657 else
2658 sp = NULL;
2659
2660 if (sp == NULL) {
2661 ql_dbg(ql_dbg_io, vha, 0x3044,
2662 "Invalid status handle (0x%x).\n", handle);
2663 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2664 qla2xxx_wake_dpc(vha);
2665 return;
2666 }
2667 qla2x00_process_completed_request(vha, req, handle);
2668 handle_ptr++;
2669 }
2670 }
2671
2672 /**
2673 * qlafx00_error_entry() - Process an error entry.
2674 * @ha: SCSI driver HA context
2675 * @pkt: Entry pointer
2676 */
2677 static void
qlafx00_error_entry(scsi_qla_host_t * vha,struct rsp_que * rsp,struct sts_entry_fx00 * pkt,uint8_t estatus,uint8_t etype)2678 qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
2679 struct sts_entry_fx00 *pkt, uint8_t estatus, uint8_t etype)
2680 {
2681 srb_t *sp;
2682 struct qla_hw_data *ha = vha->hw;
2683 const char func[] = "ERROR-IOCB";
2684 uint16_t que = MSW(pkt->handle);
2685 struct req_que *req = NULL;
2686 int res = DID_ERROR << 16;
2687
2688 ql_dbg(ql_dbg_async, vha, 0x507f,
2689 "type of error status in response: 0x%x\n", estatus);
2690
2691 req = ha->req_q_map[que];
2692
2693 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2694 if (sp) {
2695 sp->done(ha, sp, res);
2696 return;
2697 }
2698
2699 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2700 qla2xxx_wake_dpc(vha);
2701 }
2702
2703 /**
2704 * qlafx00_process_response_queue() - Process response queue entries.
2705 * @ha: SCSI driver HA context
2706 */
2707 static void
qlafx00_process_response_queue(struct scsi_qla_host * vha,struct rsp_que * rsp)2708 qlafx00_process_response_queue(struct scsi_qla_host *vha,
2709 struct rsp_que *rsp)
2710 {
2711 struct sts_entry_fx00 *pkt;
2712 response_t *lptr;
2713
2714 if (!vha->flags.online)
2715 return;
2716
2717 while (RD_REG_DWORD(&(rsp->ring_ptr->signature)) !=
2718 RESPONSE_PROCESSED) {
2719 lptr = rsp->ring_ptr;
2720 memcpy_fromio(rsp->rsp_pkt, lptr, sizeof(rsp->rsp_pkt));
2721 pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;
2722
2723 rsp->ring_index++;
2724 if (rsp->ring_index == rsp->length) {
2725 rsp->ring_index = 0;
2726 rsp->ring_ptr = rsp->ring;
2727 } else {
2728 rsp->ring_ptr++;
2729 }
2730
2731 if (pkt->entry_status != 0 &&
2732 pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
2733 qlafx00_error_entry(vha, rsp,
2734 (struct sts_entry_fx00 *)pkt, pkt->entry_status,
2735 pkt->entry_type);
2736 goto next_iter;
2737 continue;
2738 }
2739
2740 switch (pkt->entry_type) {
2741 case STATUS_TYPE_FX00:
2742 qlafx00_status_entry(vha, rsp, pkt);
2743 break;
2744
2745 case STATUS_CONT_TYPE_FX00:
2746 qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2747 break;
2748
2749 case MULTI_STATUS_TYPE_FX00:
2750 qlafx00_multistatus_entry(vha, rsp, pkt);
2751 break;
2752
2753 case ABORT_IOCB_TYPE_FX00:
2754 qlafx00_abort_iocb_entry(vha, rsp->req,
2755 (struct abort_iocb_entry_fx00 *)pkt);
2756 break;
2757
2758 case IOCTL_IOSB_TYPE_FX00:
2759 qlafx00_ioctl_iosb_entry(vha, rsp->req,
2760 (struct ioctl_iocb_entry_fx00 *)pkt);
2761 break;
2762 default:
2763 /* Type Not Supported. */
2764 ql_dbg(ql_dbg_async, vha, 0x5081,
2765 "Received unknown response pkt type %x "
2766 "entry status=%x.\n",
2767 pkt->entry_type, pkt->entry_status);
2768 break;
2769 }
2770 next_iter:
2771 WRT_REG_DWORD(&lptr->signature, RESPONSE_PROCESSED);
2772 wmb();
2773 }
2774
2775 /* Adjust ring index */
2776 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2777 }
2778
2779 /**
2780 * qlafx00_async_event() - Process aynchronous events.
2781 * @ha: SCSI driver HA context
2782 */
2783 static void
qlafx00_async_event(scsi_qla_host_t * vha)2784 qlafx00_async_event(scsi_qla_host_t *vha)
2785 {
2786 struct qla_hw_data *ha = vha->hw;
2787 struct device_reg_fx00 __iomem *reg;
2788 int data_size = 1;
2789
2790 reg = &ha->iobase->ispfx00;
2791 /* Setup to process RIO completion. */
2792 switch (ha->aenmb[0]) {
2793 case QLAFX00_MBA_SYSTEM_ERR: /* System Error */
2794 ql_log(ql_log_warn, vha, 0x5079,
2795 "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
2796 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2797 break;
2798
2799 case QLAFX00_MBA_SHUTDOWN_RQSTD: /* Shutdown requested */
2800 ql_dbg(ql_dbg_async, vha, 0x5076,
2801 "Asynchronous FW shutdown requested.\n");
2802 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2803 qla2xxx_wake_dpc(vha);
2804 break;
2805
2806 case QLAFX00_MBA_PORT_UPDATE: /* Port database update */
2807 ha->aenmb[1] = RD_REG_WORD(®->aenmailbox1);
2808 ha->aenmb[2] = RD_REG_WORD(®->aenmailbox2);
2809 ha->aenmb[3] = RD_REG_WORD(®->aenmailbox3);
2810 ql_dbg(ql_dbg_async, vha, 0x5077,
2811 "Asynchronous port Update received "
2812 "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
2813 ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
2814 data_size = 4;
2815 break;
2816 default:
2817 ha->aenmb[1] = RD_REG_WORD(®->aenmailbox1);
2818 ha->aenmb[2] = RD_REG_WORD(®->aenmailbox2);
2819 ha->aenmb[3] = RD_REG_WORD(®->aenmailbox3);
2820 ha->aenmb[4] = RD_REG_WORD(®->aenmailbox4);
2821 ha->aenmb[5] = RD_REG_WORD(®->aenmailbox5);
2822 ha->aenmb[6] = RD_REG_WORD(®->aenmailbox6);
2823 ha->aenmb[7] = RD_REG_WORD(®->aenmailbox7);
2824 ql_dbg(ql_dbg_async, vha, 0x5078,
2825 "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
2826 ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
2827 ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
2828 break;
2829 }
2830 qlafx00_post_aenfx_work(vha, ha->aenmb[0],
2831 (uint32_t *)ha->aenmb, data_size);
2832 }
2833
2834 /**
2835 *
2836 * qlafx00x_mbx_completion() - Process mailbox command completions.
2837 * @ha: SCSI driver HA context
2838 * @mb16: Mailbox16 register
2839 */
2840 static void
qlafx00_mbx_completion(scsi_qla_host_t * vha,uint32_t mb0)2841 qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
2842 {
2843 uint16_t cnt;
2844 uint16_t __iomem *wptr;
2845 struct qla_hw_data *ha = vha->hw;
2846 struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
2847
2848 if (!ha->mcp32)
2849 ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");
2850
2851 /* Load return mailbox registers. */
2852 ha->flags.mbox_int = 1;
2853 ha->mailbox_out32[0] = mb0;
2854 wptr = (uint16_t __iomem *)®->mailbox17;
2855
2856 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2857 ha->mailbox_out32[cnt] = RD_REG_WORD(wptr);
2858 wptr++;
2859 }
2860 }
2861
2862 /**
2863 * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
2864 * @irq:
2865 * @dev_id: SCSI driver HA context
2866 *
2867 * Called by system whenever the host adapter generates an interrupt.
2868 *
2869 * Returns handled flag.
2870 */
2871 irqreturn_t
qlafx00_intr_handler(int irq,void * dev_id)2872 qlafx00_intr_handler(int irq, void *dev_id)
2873 {
2874 scsi_qla_host_t *vha;
2875 struct qla_hw_data *ha;
2876 struct device_reg_fx00 __iomem *reg;
2877 int status;
2878 unsigned long iter;
2879 uint32_t stat;
2880 uint32_t mb[8];
2881 struct rsp_que *rsp;
2882 unsigned long flags;
2883 uint32_t clr_intr = 0;
2884
2885 rsp = (struct rsp_que *) dev_id;
2886 if (!rsp) {
2887 ql_log(ql_log_info, NULL, 0x507d,
2888 "%s: NULL response queue pointer.\n", __func__);
2889 return IRQ_NONE;
2890 }
2891
2892 ha = rsp->hw;
2893 reg = &ha->iobase->ispfx00;
2894 status = 0;
2895
2896 if (unlikely(pci_channel_offline(ha->pdev)))
2897 return IRQ_HANDLED;
2898
2899 spin_lock_irqsave(&ha->hardware_lock, flags);
2900 vha = pci_get_drvdata(ha->pdev);
2901 for (iter = 50; iter--; clr_intr = 0) {
2902 stat = QLAFX00_RD_INTR_REG(ha);
2903 if ((stat & QLAFX00_HST_INT_STS_BITS) == 0)
2904 break;
2905
2906 switch (stat & QLAFX00_HST_INT_STS_BITS) {
2907 case QLAFX00_INTR_MB_CMPLT:
2908 case QLAFX00_INTR_MB_RSP_CMPLT:
2909 case QLAFX00_INTR_MB_ASYNC_CMPLT:
2910 case QLAFX00_INTR_ALL_CMPLT:
2911 mb[0] = RD_REG_WORD(®->mailbox16);
2912 qlafx00_mbx_completion(vha, mb[0]);
2913 status |= MBX_INTERRUPT;
2914 clr_intr |= QLAFX00_INTR_MB_CMPLT;
2915 break;
2916 case QLAFX00_INTR_ASYNC_CMPLT:
2917 case QLAFX00_INTR_RSP_ASYNC_CMPLT:
2918 ha->aenmb[0] = RD_REG_WORD(®->aenmailbox0);
2919 qlafx00_async_event(vha);
2920 clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
2921 break;
2922 case QLAFX00_INTR_RSP_CMPLT:
2923 qlafx00_process_response_queue(vha, rsp);
2924 clr_intr |= QLAFX00_INTR_RSP_CMPLT;
2925 break;
2926 default:
2927 ql_dbg(ql_dbg_async, vha, 0x507a,
2928 "Unrecognized interrupt type (%d).\n", stat);
2929 break;
2930 }
2931 QLAFX00_CLR_INTR_REG(ha, clr_intr);
2932 QLAFX00_RD_INTR_REG(ha);
2933 }
2934
2935 qla2x00_handle_mbx_completion(ha, status);
2936 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2937
2938 return IRQ_HANDLED;
2939 }
2940
2941 /** QLAFX00 specific IOCB implementation functions */
2942
2943 static inline cont_a64_entry_t *
qlafx00_prep_cont_type1_iocb(struct req_que * req,cont_a64_entry_t * lcont_pkt)2944 qlafx00_prep_cont_type1_iocb(struct req_que *req,
2945 cont_a64_entry_t *lcont_pkt)
2946 {
2947 cont_a64_entry_t *cont_pkt;
2948
2949 /* Adjust ring index. */
2950 req->ring_index++;
2951 if (req->ring_index == req->length) {
2952 req->ring_index = 0;
2953 req->ring_ptr = req->ring;
2954 } else {
2955 req->ring_ptr++;
2956 }
2957
2958 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
2959
2960 /* Load packet defaults. */
2961 *((uint32_t *)(&lcont_pkt->entry_type)) =
2962 __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00);
2963
2964 return cont_pkt;
2965 }
2966
2967 static inline void
qlafx00_build_scsi_iocbs(srb_t * sp,struct cmd_type_7_fx00 * cmd_pkt,uint16_t tot_dsds,struct cmd_type_7_fx00 * lcmd_pkt)2968 qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
2969 uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
2970 {
2971 uint16_t avail_dsds;
2972 uint32_t *cur_dsd;
2973 scsi_qla_host_t *vha;
2974 struct scsi_cmnd *cmd;
2975 struct scatterlist *sg;
2976 int i, cont;
2977 struct req_que *req;
2978 cont_a64_entry_t lcont_pkt;
2979 cont_a64_entry_t *cont_pkt;
2980
2981 vha = sp->fcport->vha;
2982 req = vha->req;
2983
2984 cmd = GET_CMD_SP(sp);
2985 cont = 0;
2986 cont_pkt = NULL;
2987
2988 /* Update entry type to indicate Command Type 3 IOCB */
2989 *((uint32_t *)(&lcmd_pkt->entry_type)) =
2990 __constant_cpu_to_le32(FX00_COMMAND_TYPE_7);
2991
2992 /* No data transfer */
2993 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
2994 lcmd_pkt->byte_count = __constant_cpu_to_le32(0);
2995 return;
2996 }
2997
2998 /* Set transfer direction */
2999 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3000 lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3001 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3002 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3003 lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3004 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3005 }
3006
3007 /* One DSD is available in the Command Type 3 IOCB */
3008 avail_dsds = 1;
3009 cur_dsd = (uint32_t *)&lcmd_pkt->dseg_0_address;
3010
3011 /* Load data segments */
3012 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
3013 dma_addr_t sle_dma;
3014
3015 /* Allocate additional continuation packets? */
3016 if (avail_dsds == 0) {
3017 /*
3018 * Five DSDs are available in the Continuation
3019 * Type 1 IOCB.
3020 */
3021 memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
3022 cont_pkt =
3023 qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3024 cur_dsd = (uint32_t *)lcont_pkt.dseg_0_address;
3025 avail_dsds = 5;
3026 cont = 1;
3027 }
3028
3029 sle_dma = sg_dma_address(sg);
3030 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3031 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3032 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3033 avail_dsds--;
3034 if (avail_dsds == 0 && cont == 1) {
3035 cont = 0;
3036 memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3037 REQUEST_ENTRY_SIZE);
3038 }
3039
3040 }
3041 if (avail_dsds != 0 && cont == 1) {
3042 memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
3043 REQUEST_ENTRY_SIZE);
3044 }
3045 }
3046
3047 /**
3048 * qlafx00_start_scsi() - Send a SCSI command to the ISP
3049 * @sp: command to send to the ISP
3050 *
3051 * Returns non-zero if a failure occurred, else zero.
3052 */
3053 int
qlafx00_start_scsi(srb_t * sp)3054 qlafx00_start_scsi(srb_t *sp)
3055 {
3056 int ret, nseg;
3057 unsigned long flags;
3058 uint32_t index;
3059 uint32_t handle;
3060 uint16_t cnt;
3061 uint16_t req_cnt;
3062 uint16_t tot_dsds;
3063 struct req_que *req = NULL;
3064 struct rsp_que *rsp = NULL;
3065 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3066 struct scsi_qla_host *vha = sp->fcport->vha;
3067 struct qla_hw_data *ha = vha->hw;
3068 struct cmd_type_7_fx00 *cmd_pkt;
3069 struct cmd_type_7_fx00 lcmd_pkt;
3070 struct scsi_lun llun;
3071 char tag[2];
3072
3073 /* Setup device pointers. */
3074 ret = 0;
3075
3076 rsp = ha->rsp_q_map[0];
3077 req = vha->req;
3078
3079 /* So we know we haven't pci_map'ed anything yet */
3080 tot_dsds = 0;
3081
3082 /* Forcing marker needed for now */
3083 vha->marker_needed = 0;
3084
3085 /* Send marker if required */
3086 if (vha->marker_needed != 0) {
3087 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
3088 QLA_SUCCESS)
3089 return QLA_FUNCTION_FAILED;
3090 vha->marker_needed = 0;
3091 }
3092
3093 /* Acquire ring specific lock */
3094 spin_lock_irqsave(&ha->hardware_lock, flags);
3095
3096 /* Check for room in outstanding command list. */
3097 handle = req->current_outstanding_cmd;
3098 for (index = 1; index < req->num_outstanding_cmds; index++) {
3099 handle++;
3100 if (handle == req->num_outstanding_cmds)
3101 handle = 1;
3102 if (!req->outstanding_cmds[handle])
3103 break;
3104 }
3105 if (index == req->num_outstanding_cmds)
3106 goto queuing_error;
3107
3108 /* Map the sg table so we have an accurate count of sg entries needed */
3109 if (scsi_sg_count(cmd)) {
3110 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3111 scsi_sg_count(cmd), cmd->sc_data_direction);
3112 if (unlikely(!nseg))
3113 goto queuing_error;
3114 } else
3115 nseg = 0;
3116
3117 tot_dsds = nseg;
3118 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3119 if (req->cnt < (req_cnt + 2)) {
3120 cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
3121
3122 if (req->ring_index < cnt)
3123 req->cnt = cnt - req->ring_index;
3124 else
3125 req->cnt = req->length -
3126 (req->ring_index - cnt);
3127 if (req->cnt < (req_cnt + 2))
3128 goto queuing_error;
3129 }
3130
3131 /* Build command packet. */
3132 req->current_outstanding_cmd = handle;
3133 req->outstanding_cmds[handle] = sp;
3134 sp->handle = handle;
3135 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3136 req->cnt -= req_cnt;
3137
3138 cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;
3139
3140 memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);
3141
3142 lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
3143 lcmd_pkt.handle_hi = 0;
3144 lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
3145 lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);
3146
3147 int_to_scsilun(cmd->device->lun, &llun);
3148 host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
3149 sizeof(lcmd_pkt.lun));
3150
3151 /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */
3152 if (scsi_populate_tag_msg(cmd, tag)) {
3153 switch (tag[0]) {
3154 case HEAD_OF_QUEUE_TAG:
3155 lcmd_pkt.task = TSK_HEAD_OF_QUEUE;
3156 break;
3157 case ORDERED_QUEUE_TAG:
3158 lcmd_pkt.task = TSK_ORDERED;
3159 break;
3160 }
3161 }
3162
3163 /* Load SCSI command packet. */
3164 host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
3165 lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3166
3167 /* Build IOCB segments */
3168 qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);
3169
3170 /* Set total data segment count. */
3171 lcmd_pkt.entry_count = (uint8_t)req_cnt;
3172
3173 /* Specify response queue number where completion should happen */
3174 lcmd_pkt.entry_status = (uint8_t) rsp->id;
3175
3176 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
3177 (uint8_t *)cmd->cmnd, cmd->cmd_len);
3178 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
3179 (uint8_t *)&lcmd_pkt, REQUEST_ENTRY_SIZE);
3180
3181 memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
3182 wmb();
3183
3184 /* Adjust ring index. */
3185 req->ring_index++;
3186 if (req->ring_index == req->length) {
3187 req->ring_index = 0;
3188 req->ring_ptr = req->ring;
3189 } else
3190 req->ring_ptr++;
3191
3192 sp->flags |= SRB_DMA_VALID;
3193
3194 /* Set chip new ring index. */
3195 WRT_REG_DWORD(req->req_q_in, req->ring_index);
3196 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
3197
3198 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3199 return QLA_SUCCESS;
3200
3201 queuing_error:
3202 if (tot_dsds)
3203 scsi_dma_unmap(cmd);
3204
3205 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3206
3207 return QLA_FUNCTION_FAILED;
3208 }
3209
3210 void
qlafx00_tm_iocb(srb_t * sp,struct tsk_mgmt_entry_fx00 * ptm_iocb)3211 qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
3212 {
3213 struct srb_iocb *fxio = &sp->u.iocb_cmd;
3214 scsi_qla_host_t *vha = sp->fcport->vha;
3215 struct req_que *req = vha->req;
3216 struct tsk_mgmt_entry_fx00 tm_iocb;
3217 struct scsi_lun llun;
3218
3219 memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
3220 tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
3221 tm_iocb.entry_count = 1;
3222 tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3223 tm_iocb.handle_hi = 0;
3224 tm_iocb.timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
3225 tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
3226 tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3227 if (tm_iocb.control_flags == TCF_LUN_RESET) {
3228 int_to_scsilun(fxio->u.tmf.lun, &llun);
3229 host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
3230 sizeof(struct scsi_lun));
3231 }
3232
3233 memcpy((void __iomem *)ptm_iocb, &tm_iocb,
3234 sizeof(struct tsk_mgmt_entry_fx00));
3235 wmb();
3236 }
3237
3238 void
qlafx00_abort_iocb(srb_t * sp,struct abort_iocb_entry_fx00 * pabt_iocb)3239 qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
3240 {
3241 struct srb_iocb *fxio = &sp->u.iocb_cmd;
3242 scsi_qla_host_t *vha = sp->fcport->vha;
3243 struct req_que *req = vha->req;
3244 struct abort_iocb_entry_fx00 abt_iocb;
3245
3246 memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
3247 abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
3248 abt_iocb.entry_count = 1;
3249 abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
3250 abt_iocb.abort_handle =
3251 cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
3252 abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
3253 abt_iocb.req_que_no = cpu_to_le16(req->id);
3254
3255 memcpy((void __iomem *)pabt_iocb, &abt_iocb,
3256 sizeof(struct abort_iocb_entry_fx00));
3257 wmb();
3258 }
3259
3260 void
qlafx00_fxdisc_iocb(srb_t * sp,struct fxdisc_entry_fx00 * pfxiocb)3261 qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
3262 {
3263 struct srb_iocb *fxio = &sp->u.iocb_cmd;
3264 struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
3265 struct fc_bsg_job *bsg_job;
3266 struct fxdisc_entry_fx00 fx_iocb;
3267 uint8_t entry_cnt = 1;
3268
3269 memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
3270 fx_iocb.entry_type = FX00_IOCB_TYPE;
3271 fx_iocb.handle = cpu_to_le32(sp->handle);
3272 fx_iocb.entry_count = entry_cnt;
3273
3274 if (sp->type == SRB_FXIOCB_DCMD) {
3275 fx_iocb.func_num =
3276 cpu_to_le16(sp->u.iocb_cmd.u.fxiocb.req_func_type);
3277 fx_iocb.adapid = cpu_to_le32(fxio->u.fxiocb.adapter_id);
3278 fx_iocb.adapid_hi = cpu_to_le32(fxio->u.fxiocb.adapter_id_hi);
3279 fx_iocb.reserved_0 = cpu_to_le32(fxio->u.fxiocb.reserved_0);
3280 fx_iocb.reserved_1 = cpu_to_le32(fxio->u.fxiocb.reserved_1);
3281 fx_iocb.dataword_extra =
3282 cpu_to_le32(fxio->u.fxiocb.req_data_extra);
3283
3284 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
3285 fx_iocb.req_dsdcnt = cpu_to_le16(1);
3286 fx_iocb.req_xfrcnt =
3287 cpu_to_le16(fxio->u.fxiocb.req_len);
3288 fx_iocb.dseg_rq_address[0] =
3289 cpu_to_le32(LSD(fxio->u.fxiocb.req_dma_handle));
3290 fx_iocb.dseg_rq_address[1] =
3291 cpu_to_le32(MSD(fxio->u.fxiocb.req_dma_handle));
3292 fx_iocb.dseg_rq_len =
3293 cpu_to_le32(fxio->u.fxiocb.req_len);
3294 }
3295
3296 if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
3297 fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
3298 fx_iocb.rsp_xfrcnt =
3299 cpu_to_le16(fxio->u.fxiocb.rsp_len);
3300 fx_iocb.dseg_rsp_address[0] =
3301 cpu_to_le32(LSD(fxio->u.fxiocb.rsp_dma_handle));
3302 fx_iocb.dseg_rsp_address[1] =
3303 cpu_to_le32(MSD(fxio->u.fxiocb.rsp_dma_handle));
3304 fx_iocb.dseg_rsp_len =
3305 cpu_to_le32(fxio->u.fxiocb.rsp_len);
3306 }
3307
3308 if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3309 fx_iocb.dataword =
3310 cpu_to_le32(fxio->u.fxiocb.req_data);
3311 }
3312 fx_iocb.flags = fxio->u.fxiocb.flags;
3313 } else {
3314 struct scatterlist *sg;
3315 bsg_job = sp->u.bsg_job;
3316 piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
3317 &bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
3318
3319 fx_iocb.func_num = piocb_rqst->func_type;
3320 fx_iocb.adapid = piocb_rqst->adapid;
3321 fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
3322 fx_iocb.reserved_0 = piocb_rqst->reserved_0;
3323 fx_iocb.reserved_1 = piocb_rqst->reserved_1;
3324 fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
3325 fx_iocb.dataword = piocb_rqst->dataword;
3326 fx_iocb.req_xfrcnt = cpu_to_le16(piocb_rqst->req_len);
3327 fx_iocb.rsp_xfrcnt = cpu_to_le16(piocb_rqst->rsp_len);
3328
3329 if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
3330 int avail_dsds, tot_dsds;
3331 cont_a64_entry_t lcont_pkt;
3332 cont_a64_entry_t *cont_pkt = NULL;
3333 uint32_t *cur_dsd;
3334 int index = 0, cont = 0;
3335
3336 fx_iocb.req_dsdcnt =
3337 cpu_to_le16(bsg_job->request_payload.sg_cnt);
3338 tot_dsds =
3339 cpu_to_le32(bsg_job->request_payload.sg_cnt);
3340 cur_dsd = (uint32_t *)&fx_iocb.dseg_rq_address[0];
3341 avail_dsds = 1;
3342 for_each_sg(bsg_job->request_payload.sg_list, sg,
3343 tot_dsds, index) {
3344 dma_addr_t sle_dma;
3345
3346 /* Allocate additional continuation packets? */
3347 if (avail_dsds == 0) {
3348 /*
3349 * Five DSDs are available in the Cont.
3350 * Type 1 IOCB.
3351 */
3352 memset(&lcont_pkt, 0,
3353 REQUEST_ENTRY_SIZE);
3354 cont_pkt =
3355 qlafx00_prep_cont_type1_iocb(
3356 sp->fcport->vha->req,
3357 &lcont_pkt);
3358 cur_dsd = (uint32_t *)
3359 lcont_pkt.dseg_0_address;
3360 avail_dsds = 5;
3361 cont = 1;
3362 entry_cnt++;
3363 }
3364
3365 sle_dma = sg_dma_address(sg);
3366 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3367 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3368 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3369 avail_dsds--;
3370
3371 if (avail_dsds == 0 && cont == 1) {
3372 cont = 0;
3373 memcpy_toio(
3374 (void __iomem *)cont_pkt,
3375 &lcont_pkt, REQUEST_ENTRY_SIZE);
3376 ql_dump_buffer(
3377 ql_dbg_user + ql_dbg_verbose,
3378 sp->fcport->vha, 0x3042,
3379 (uint8_t *)&lcont_pkt,
3380 REQUEST_ENTRY_SIZE);
3381 }
3382 }
3383 if (avail_dsds != 0 && cont == 1) {
3384 memcpy_toio((void __iomem *)cont_pkt,
3385 &lcont_pkt, REQUEST_ENTRY_SIZE);
3386 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3387 sp->fcport->vha, 0x3043,
3388 (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3389 }
3390 }
3391
3392 if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
3393 int avail_dsds, tot_dsds;
3394 cont_a64_entry_t lcont_pkt;
3395 cont_a64_entry_t *cont_pkt = NULL;
3396 uint32_t *cur_dsd;
3397 int index = 0, cont = 0;
3398
3399 fx_iocb.rsp_dsdcnt =
3400 cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3401 tot_dsds = cpu_to_le32(bsg_job->reply_payload.sg_cnt);
3402 cur_dsd = (uint32_t *)&fx_iocb.dseg_rsp_address[0];
3403 avail_dsds = 1;
3404
3405 for_each_sg(bsg_job->reply_payload.sg_list, sg,
3406 tot_dsds, index) {
3407 dma_addr_t sle_dma;
3408
3409 /* Allocate additional continuation packets? */
3410 if (avail_dsds == 0) {
3411 /*
3412 * Five DSDs are available in the Cont.
3413 * Type 1 IOCB.
3414 */
3415 memset(&lcont_pkt, 0,
3416 REQUEST_ENTRY_SIZE);
3417 cont_pkt =
3418 qlafx00_prep_cont_type1_iocb(
3419 sp->fcport->vha->req,
3420 &lcont_pkt);
3421 cur_dsd = (uint32_t *)
3422 lcont_pkt.dseg_0_address;
3423 avail_dsds = 5;
3424 cont = 1;
3425 entry_cnt++;
3426 }
3427
3428 sle_dma = sg_dma_address(sg);
3429 *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
3430 *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
3431 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
3432 avail_dsds--;
3433
3434 if (avail_dsds == 0 && cont == 1) {
3435 cont = 0;
3436 memcpy_toio((void __iomem *)cont_pkt,
3437 &lcont_pkt,
3438 REQUEST_ENTRY_SIZE);
3439 ql_dump_buffer(
3440 ql_dbg_user + ql_dbg_verbose,
3441 sp->fcport->vha, 0x3045,
3442 (uint8_t *)&lcont_pkt,
3443 REQUEST_ENTRY_SIZE);
3444 }
3445 }
3446 if (avail_dsds != 0 && cont == 1) {
3447 memcpy_toio((void __iomem *)cont_pkt,
3448 &lcont_pkt, REQUEST_ENTRY_SIZE);
3449 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3450 sp->fcport->vha, 0x3046,
3451 (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
3452 }
3453 }
3454
3455 if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3456 fx_iocb.dataword = cpu_to_le32(piocb_rqst->dataword);
3457 fx_iocb.flags = piocb_rqst->flags;
3458 fx_iocb.entry_count = entry_cnt;
3459 }
3460
3461 ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
3462 sp->fcport->vha, 0x3047,
3463 (uint8_t *)&fx_iocb, sizeof(struct fxdisc_entry_fx00));
3464
3465 memcpy((void __iomem *)pfxiocb, &fx_iocb,
3466 sizeof(struct fxdisc_entry_fx00));
3467 wmb();
3468 }
3469