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ethtool: cosmetics: enforce const-ness in ethtool_cmd_speed
[linux-2.6/btrfs-unstable.git] / drivers / scsi / qla4xxx / ql4_mbx.c
blobf9d81c8372c3c3a12a292049a975c48325dc5226
1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2010 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7
8 #include "ql4_def.h"
9 #include "ql4_glbl.h"
10 #include "ql4_dbg.h"
11 #include "ql4_inline.h"
12
13
14 /**
15 * qla4xxx_mailbox_command - issues mailbox commands
16 * @ha: Pointer to host adapter structure.
17 * @inCount: number of mailbox registers to load.
18 * @outCount: number of mailbox registers to return.
19 * @mbx_cmd: data pointer for mailbox in registers.
20 * @mbx_sts: data pointer for mailbox out registers.
21 *
22 * This routine isssue mailbox commands and waits for completion.
23 * If outCount is 0, this routine completes successfully WITHOUT waiting
24 * for the mailbox command to complete.
25 **/
26 int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
27 uint8_t outCount, uint32_t *mbx_cmd,
28 uint32_t *mbx_sts)
29 {
30 int status = QLA_ERROR;
31 uint8_t i;
32 u_long wait_count;
33 uint32_t intr_status;
34 unsigned long flags = 0;
35 uint32_t dev_state;
36
37 /* Make sure that pointers are valid */
38 if (!mbx_cmd || !mbx_sts) {
39 DEBUG2(printk("scsi%ld: %s: Invalid mbx_cmd or mbx_sts "
40 "pointer\n", ha->host_no, __func__));
41 return status;
42 }
43
44 if (is_qla8022(ha)) {
45 if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
46 DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
47 "prematurely completing mbx cmd as firmware "
48 "recovery detected\n", ha->host_no, __func__));
49 return status;
50 }
51 /* Do not send any mbx cmd if h/w is in failed state*/
52 qla4_8xxx_idc_lock(ha);
53 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
54 qla4_8xxx_idc_unlock(ha);
55 if (dev_state == QLA82XX_DEV_FAILED) {
56 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: H/W is in "
57 "failed state, do not send any mailbox commands\n",
58 ha->host_no, __func__);
59 return status;
60 }
61 }
62
63 if ((is_aer_supported(ha)) &&
64 (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))) {
65 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Perm failure on EEH, "
66 "timeout MBX Exiting.\n", ha->host_no, __func__));
67 return status;
68 }
69
70 /* Mailbox code active */
71 wait_count = MBOX_TOV * 100;
72
73 while (wait_count--) {
74 mutex_lock(&ha->mbox_sem);
75 if (!test_bit(AF_MBOX_COMMAND, &ha->flags)) {
76 set_bit(AF_MBOX_COMMAND, &ha->flags);
77 mutex_unlock(&ha->mbox_sem);
78 break;
79 }
80 mutex_unlock(&ha->mbox_sem);
81 if (!wait_count) {
82 DEBUG2(printk("scsi%ld: %s: mbox_sem failed\n",
83 ha->host_no, __func__));
84 return status;
85 }
86 msleep(10);
87 }
88
89 /* To prevent overwriting mailbox registers for a command that has
90 * not yet been serviced, check to see if an active command
91 * (AEN, IOCB, etc.) is interrupting, then service it.
92 * -----------------------------------------------------------------
93 */
94 spin_lock_irqsave(&ha->hardware_lock, flags);
95
96 if (!is_qla8022(ha)) {
97 intr_status = readl(&ha->reg->ctrl_status);
98 if (intr_status & CSR_SCSI_PROCESSOR_INTR) {
99 /* Service existing interrupt */
100 ha->isp_ops->interrupt_service_routine(ha, intr_status);
101 clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
102 }
103 }
104
105 ha->mbox_status_count = outCount;
106 for (i = 0; i < outCount; i++)
107 ha->mbox_status[i] = 0;
108
109 if (is_qla8022(ha)) {
110 /* Load all mailbox registers, except mailbox 0. */
111 DEBUG5(
112 printk("scsi%ld: %s: Cmd ", ha->host_no, __func__);
113 for (i = 0; i < inCount; i++)
114 printk("mb%d=%04x ", i, mbx_cmd[i]);
115 printk("\n"));
116
117 for (i = 1; i < inCount; i++)
118 writel(mbx_cmd[i], &ha->qla4_8xxx_reg->mailbox_in[i]);
119 writel(mbx_cmd[0], &ha->qla4_8xxx_reg->mailbox_in[0]);
120 readl(&ha->qla4_8xxx_reg->mailbox_in[0]);
121 writel(HINT_MBX_INT_PENDING, &ha->qla4_8xxx_reg->hint);
122 } else {
123 /* Load all mailbox registers, except mailbox 0. */
124 for (i = 1; i < inCount; i++)
125 writel(mbx_cmd[i], &ha->reg->mailbox[i]);
126
127 /* Wakeup firmware */
128 writel(mbx_cmd[0], &ha->reg->mailbox[0]);
129 readl(&ha->reg->mailbox[0]);
130 writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
131 readl(&ha->reg->ctrl_status);
132 }
133
134 spin_unlock_irqrestore(&ha->hardware_lock, flags);
135
136 /* Wait for completion */
137
138 /*
139 * If we don't want status, don't wait for the mailbox command to
140 * complete. For example, MBOX_CMD_RESET_FW doesn't return status,
141 * you must poll the inbound Interrupt Mask for completion.
142 */
143 if (outCount == 0) {
144 status = QLA_SUCCESS;
145 goto mbox_exit;
146 }
147
148 /*
149 * Wait for completion: Poll or completion queue
150 */
151 if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
152 test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
153 test_bit(AF_ONLINE, &ha->flags) &&
154 !test_bit(AF_HA_REMOVAL, &ha->flags)) {
155 /* Do not poll for completion. Use completion queue */
156 set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
157 wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ);
158 clear_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
159 } else {
160 /* Poll for command to complete */
161 wait_count = jiffies + MBOX_TOV * HZ;
162 while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) {
163 if (time_after_eq(jiffies, wait_count))
164 break;
165
166 /*
167 * Service the interrupt.
168 * The ISR will save the mailbox status registers
169 * to a temporary storage location in the adapter
170 * structure.
171 */
172
173 spin_lock_irqsave(&ha->hardware_lock, flags);
174 if (is_qla8022(ha)) {
175 intr_status =
176 readl(&ha->qla4_8xxx_reg->host_int);
177 if (intr_status & ISRX_82XX_RISC_INT) {
178 ha->mbox_status_count = outCount;
179 intr_status =
180 readl(&ha->qla4_8xxx_reg->host_status);
181 ha->isp_ops->interrupt_service_routine(
182 ha, intr_status);
183 if (test_bit(AF_INTERRUPTS_ON,
184 &ha->flags) &&
185 test_bit(AF_INTx_ENABLED,
186 &ha->flags))
187 qla4_8xxx_wr_32(ha,
188 ha->nx_legacy_intr.tgt_mask_reg,
189 0xfbff);
190 }
191 } else {
192 intr_status = readl(&ha->reg->ctrl_status);
193 if (intr_status & INTR_PENDING) {
194 /*
195 * Service the interrupt.
196 * The ISR will save the mailbox status
197 * registers to a temporary storage
198 * location in the adapter structure.
199 */
200 ha->mbox_status_count = outCount;
201 ha->isp_ops->interrupt_service_routine(
202 ha, intr_status);
203 }
204 }
205 spin_unlock_irqrestore(&ha->hardware_lock, flags);
206 msleep(10);
207 }
208 }
209
210 /* Check for mailbox timeout. */
211 if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
212 if (is_qla8022(ha) &&
213 test_bit(AF_FW_RECOVERY, &ha->flags)) {
214 DEBUG2(ql4_printk(KERN_INFO, ha,
215 "scsi%ld: %s: prematurely completing mbx cmd as "
216 "firmware recovery detected\n",
217 ha->host_no, __func__));
218 goto mbox_exit;
219 }
220 DEBUG2(printk("scsi%ld: Mailbox Cmd 0x%08X timed out ...,"
221 " Scheduling Adapter Reset\n", ha->host_no,
222 mbx_cmd[0]));
223 ha->mailbox_timeout_count++;
224 mbx_sts[0] = (-1);
225 set_bit(DPC_RESET_HA, &ha->dpc_flags);
226 goto mbox_exit;
227 }
228
229 /*
230 * Copy the mailbox out registers to the caller's mailbox in/out
231 * structure.
232 */
233 spin_lock_irqsave(&ha->hardware_lock, flags);
234 for (i = 0; i < outCount; i++)
235 mbx_sts[i] = ha->mbox_status[i];
236
237 /* Set return status and error flags (if applicable). */
238 switch (ha->mbox_status[0]) {
239 case MBOX_STS_COMMAND_COMPLETE:
240 status = QLA_SUCCESS;
241 break;
242
243 case MBOX_STS_INTERMEDIATE_COMPLETION:
244 status = QLA_SUCCESS;
245 break;
246
247 case MBOX_STS_BUSY:
248 DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
249 ha->host_no, __func__, mbx_cmd[0]));
250 ha->mailbox_timeout_count++;
251 break;
252
253 default:
254 DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, "
255 "sts = %08X ****\n", ha->host_no, __func__,
256 mbx_cmd[0], mbx_sts[0]));
257 break;
258 }
259 spin_unlock_irqrestore(&ha->hardware_lock, flags);
260
261 mbox_exit:
262 mutex_lock(&ha->mbox_sem);
263 clear_bit(AF_MBOX_COMMAND, &ha->flags);
264 mutex_unlock(&ha->mbox_sem);
265 clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
266
267 return status;
268 }
269
270 void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
271 {
272 set_bit(AF_FW_RECOVERY, &ha->flags);
273 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: set FW RECOVERY!\n",
274 ha->host_no, __func__);
275
276 if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
277 if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) {
278 complete(&ha->mbx_intr_comp);
279 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
280 "recovery, doing premature completion of "
281 "mbx cmd\n", ha->host_no, __func__);
282
283 } else {
284 set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
285 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
286 "recovery, doing premature completion of "
287 "polling mbx cmd\n", ha->host_no, __func__);
288 }
289 }
290 }
291
292 static uint8_t
293 qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
294 uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
295 {
296 memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
297 memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
298
299 if (is_qla8022(ha))
300 qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, 0);
301
302 mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
303 mbox_cmd[1] = 0;
304 mbox_cmd[2] = LSDW(init_fw_cb_dma);
305 mbox_cmd[3] = MSDW(init_fw_cb_dma);
306 mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
307 mbox_cmd[5] = (IFCB_VER_MAX << 8) | IFCB_VER_MIN;
308
309 if (qla4xxx_mailbox_command(ha, 6, 6, mbox_cmd, mbox_sts) !=
310 QLA_SUCCESS) {
311 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
312 "MBOX_CMD_INITIALIZE_FIRMWARE"
313 " failed w/ status %04X\n",
314 ha->host_no, __func__, mbox_sts[0]));
315 return QLA_ERROR;
316 }
317 return QLA_SUCCESS;
318 }
319
320 static uint8_t
321 qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
322 uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
323 {
324 memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
325 memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
326 mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
327 mbox_cmd[2] = LSDW(init_fw_cb_dma);
328 mbox_cmd[3] = MSDW(init_fw_cb_dma);
329 mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
330
331 if (qla4xxx_mailbox_command(ha, 5, 5, mbox_cmd, mbox_sts) !=
332 QLA_SUCCESS) {
333 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
334 "MBOX_CMD_GET_INIT_FW_CTRL_BLOCK"
335 " failed w/ status %04X\n",
336 ha->host_no, __func__, mbox_sts[0]));
337 return QLA_ERROR;
338 }
339 return QLA_SUCCESS;
340 }
341
342 static void
343 qla4xxx_update_local_ip(struct scsi_qla_host *ha,
344 struct addr_ctrl_blk *init_fw_cb)
345 {
346 /* Save IPv4 Address Info */
347 memcpy(ha->ip_address, init_fw_cb->ipv4_addr,
348 min(sizeof(ha->ip_address), sizeof(init_fw_cb->ipv4_addr)));
349 memcpy(ha->subnet_mask, init_fw_cb->ipv4_subnet,
350 min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->ipv4_subnet)));
351 memcpy(ha->gateway, init_fw_cb->ipv4_gw_addr,
352 min(sizeof(ha->gateway), sizeof(init_fw_cb->ipv4_gw_addr)));
353
354 if (is_ipv6_enabled(ha)) {
355 /* Save IPv6 Address */
356 ha->ipv6_link_local_state = init_fw_cb->ipv6_lnk_lcl_addr_state;
357 ha->ipv6_addr0_state = init_fw_cb->ipv6_addr0_state;
358 ha->ipv6_addr1_state = init_fw_cb->ipv6_addr1_state;
359 ha->ipv6_default_router_state = init_fw_cb->ipv6_dflt_rtr_state;
360 ha->ipv6_link_local_addr.in6_u.u6_addr8[0] = 0xFE;
361 ha->ipv6_link_local_addr.in6_u.u6_addr8[1] = 0x80;
362
363 memcpy(&ha->ipv6_link_local_addr.in6_u.u6_addr8[8],
364 init_fw_cb->ipv6_if_id,
365 min(sizeof(ha->ipv6_link_local_addr)/2,
366 sizeof(init_fw_cb->ipv6_if_id)));
367 memcpy(&ha->ipv6_addr0, init_fw_cb->ipv6_addr0,
368 min(sizeof(ha->ipv6_addr0),
369 sizeof(init_fw_cb->ipv6_addr0)));
370 memcpy(&ha->ipv6_addr1, init_fw_cb->ipv6_addr1,
371 min(sizeof(ha->ipv6_addr1),
372 sizeof(init_fw_cb->ipv6_addr1)));
373 memcpy(&ha->ipv6_default_router_addr,
374 init_fw_cb->ipv6_dflt_rtr_addr,
375 min(sizeof(ha->ipv6_default_router_addr),
376 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
377 }
378 }
379
380 static uint8_t
381 qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
382 uint32_t *mbox_cmd,
383 uint32_t *mbox_sts,
384 struct addr_ctrl_blk *init_fw_cb,
385 dma_addr_t init_fw_cb_dma)
386 {
387 if (qla4xxx_get_ifcb(ha, mbox_cmd, mbox_sts, init_fw_cb_dma)
388 != QLA_SUCCESS) {
389 DEBUG2(printk(KERN_WARNING
390 "scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
391 ha->host_no, __func__));
392 return QLA_ERROR;
393 }
394
395 DEBUG2(qla4xxx_dump_buffer(init_fw_cb, sizeof(struct addr_ctrl_blk)));
396
397 /* Save some info in adapter structure. */
398 ha->acb_version = init_fw_cb->acb_version;
399 ha->firmware_options = le16_to_cpu(init_fw_cb->fw_options);
400 ha->tcp_options = le16_to_cpu(init_fw_cb->ipv4_tcp_opts);
401 ha->ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
402 ha->ipv4_addr_state = le16_to_cpu(init_fw_cb->ipv4_addr_state);
403 ha->heartbeat_interval = init_fw_cb->hb_interval;
404 memcpy(ha->name_string, init_fw_cb->iscsi_name,
405 min(sizeof(ha->name_string),
406 sizeof(init_fw_cb->iscsi_name)));
407 /*memcpy(ha->alias, init_fw_cb->Alias,
408 min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
409
410 if (ha->acb_version == ACB_SUPPORTED) {
411 ha->ipv6_options = init_fw_cb->ipv6_opts;
412 ha->ipv6_addl_options = init_fw_cb->ipv6_addtl_opts;
413 }
414 qla4xxx_update_local_ip(ha, init_fw_cb);
415
416 return QLA_SUCCESS;
417 }
418
419 /**
420 * qla4xxx_initialize_fw_cb - initializes firmware control block.
421 * @ha: Pointer to host adapter structure.
422 **/
423 int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
424 {
425 struct addr_ctrl_blk *init_fw_cb;
426 dma_addr_t init_fw_cb_dma;
427 uint32_t mbox_cmd[MBOX_REG_COUNT];
428 uint32_t mbox_sts[MBOX_REG_COUNT];
429 int status = QLA_ERROR;
430
431 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
432 sizeof(struct addr_ctrl_blk),
433 &init_fw_cb_dma, GFP_KERNEL);
434 if (init_fw_cb == NULL) {
435 DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
436 ha->host_no, __func__));
437 goto exit_init_fw_cb_no_free;
438 }
439 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
440
441 /* Get Initialize Firmware Control Block. */
442 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
443 memset(&mbox_sts, 0, sizeof(mbox_sts));
444
445 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
446 QLA_SUCCESS) {
447 dma_free_coherent(&ha->pdev->dev,
448 sizeof(struct addr_ctrl_blk),
449 init_fw_cb, init_fw_cb_dma);
450 goto exit_init_fw_cb;
451 }
452
453 /* Initialize request and response queues. */
454 qla4xxx_init_rings(ha);
455
456 /* Fill in the request and response queue information. */
457 init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
458 init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
459 init_fw_cb->rqq_len = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH);
460 init_fw_cb->compq_len = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH);
461 init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
462 init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
463 init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
464 init_fw_cb->compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma));
465 init_fw_cb->shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma));
466 init_fw_cb->shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma));
467
468 /* Set up required options. */
469 init_fw_cb->fw_options |=
470 __constant_cpu_to_le16(FWOPT_SESSION_MODE |
471 FWOPT_INITIATOR_MODE);
472
473 if (is_qla8022(ha))
474 init_fw_cb->fw_options |=
475 __constant_cpu_to_le16(FWOPT_ENABLE_CRBDB);
476
477 init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
478
479 /* Set bit for "serialize task mgmt" all other bits need to be zero */
480 init_fw_cb->add_fw_options = 0;
481 init_fw_cb->add_fw_options |=
482 __constant_cpu_to_le16(SERIALIZE_TASK_MGMT);
483
484 if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
485 != QLA_SUCCESS) {
486 DEBUG2(printk(KERN_WARNING
487 "scsi%ld: %s: Failed to set init_fw_ctrl_blk\n",
488 ha->host_no, __func__));
489 goto exit_init_fw_cb;
490 }
491
492 if (qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0],
493 init_fw_cb, init_fw_cb_dma) != QLA_SUCCESS) {
494 DEBUG2(printk("scsi%ld: %s: Failed to update local ifcb\n",
495 ha->host_no, __func__));
496 goto exit_init_fw_cb;
497 }
498 status = QLA_SUCCESS;
499
500 exit_init_fw_cb:
501 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
502 init_fw_cb, init_fw_cb_dma);
503 exit_init_fw_cb_no_free:
504 return status;
505 }
506
507 /**
508 * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP
509 * @ha: Pointer to host adapter structure.
510 **/
511 int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
512 {
513 struct addr_ctrl_blk *init_fw_cb;
514 dma_addr_t init_fw_cb_dma;
515 uint32_t mbox_cmd[MBOX_REG_COUNT];
516 uint32_t mbox_sts[MBOX_REG_COUNT];
517
518 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
519 sizeof(struct addr_ctrl_blk),
520 &init_fw_cb_dma, GFP_KERNEL);
521 if (init_fw_cb == NULL) {
522 printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
523 __func__);
524 return QLA_ERROR;
525 }
526
527 /* Get Initialize Firmware Control Block. */
528 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
529 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
530 QLA_SUCCESS) {
531 DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
532 ha->host_no, __func__));
533 dma_free_coherent(&ha->pdev->dev,
534 sizeof(struct addr_ctrl_blk),
535 init_fw_cb, init_fw_cb_dma);
536 return QLA_ERROR;
537 }
538
539 /* Save IP Address. */
540 qla4xxx_update_local_ip(ha, init_fw_cb);
541 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
542 init_fw_cb, init_fw_cb_dma);
543
544 return QLA_SUCCESS;
545 }
546
547 /**
548 * qla4xxx_get_firmware_state - gets firmware state of HBA
549 * @ha: Pointer to host adapter structure.
550 **/
551 int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
552 {
553 uint32_t mbox_cmd[MBOX_REG_COUNT];
554 uint32_t mbox_sts[MBOX_REG_COUNT];
555
556 /* Get firmware version */
557 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
558 memset(&mbox_sts, 0, sizeof(mbox_sts));
559
560 mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
561
562 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) !=
563 QLA_SUCCESS) {
564 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
565 "status %04X\n", ha->host_no, __func__,
566 mbox_sts[0]));
567 return QLA_ERROR;
568 }
569 ha->firmware_state = mbox_sts[1];
570 ha->board_id = mbox_sts[2];
571 ha->addl_fw_state = mbox_sts[3];
572 DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
573 ha->host_no, __func__, ha->firmware_state);)
574
575 return QLA_SUCCESS;
576 }
577
578 /**
579 * qla4xxx_get_firmware_status - retrieves firmware status
580 * @ha: Pointer to host adapter structure.
581 **/
582 int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
583 {
584 uint32_t mbox_cmd[MBOX_REG_COUNT];
585 uint32_t mbox_sts[MBOX_REG_COUNT];
586
587 /* Get firmware version */
588 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
589 memset(&mbox_sts, 0, sizeof(mbox_sts));
590
591 mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
592
593 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
594 QLA_SUCCESS) {
595 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
596 "status %04X\n", ha->host_no, __func__,
597 mbox_sts[0]));
598 return QLA_ERROR;
599 }
600
601 ql4_printk(KERN_INFO, ha, "%ld firmare IOCBs available (%d).\n",
602 ha->host_no, mbox_sts[2]);
603
604 return QLA_SUCCESS;
605 }
606
607 /**
608 * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry
609 * @ha: Pointer to host adapter structure.
610 * @fw_ddb_index: Firmware's device database index
611 * @fw_ddb_entry: Pointer to firmware's device database entry structure
612 * @num_valid_ddb_entries: Pointer to number of valid ddb entries
613 * @next_ddb_index: Pointer to next valid device database index
614 * @fw_ddb_device_state: Pointer to device state
615 **/
616 int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
617 uint16_t fw_ddb_index,
618 struct dev_db_entry *fw_ddb_entry,
619 dma_addr_t fw_ddb_entry_dma,
620 uint32_t *num_valid_ddb_entries,
621 uint32_t *next_ddb_index,
622 uint32_t *fw_ddb_device_state,
623 uint32_t *conn_err_detail,
624 uint16_t *tcp_source_port_num,
625 uint16_t *connection_id)
626 {
627 int status = QLA_ERROR;
628 uint16_t options;
629 uint32_t mbox_cmd[MBOX_REG_COUNT];
630 uint32_t mbox_sts[MBOX_REG_COUNT];
631
632 /* Make sure the device index is valid */
633 if (fw_ddb_index >= MAX_DDB_ENTRIES) {
634 DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n",
635 ha->host_no, __func__, fw_ddb_index));
636 goto exit_get_fwddb;
637 }
638 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
639 memset(&mbox_sts, 0, sizeof(mbox_sts));
640
641 mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
642 mbox_cmd[1] = (uint32_t) fw_ddb_index;
643 mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
644 mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
645 mbox_cmd[4] = sizeof(struct dev_db_entry);
646
647 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) ==
648 QLA_ERROR) {
649 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
650 " with status 0x%04X\n", ha->host_no, __func__,
651 mbox_sts[0]));
652 goto exit_get_fwddb;
653 }
654 if (fw_ddb_index != mbox_sts[1]) {
655 DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n",
656 ha->host_no, __func__, fw_ddb_index,
657 mbox_sts[1]));
658 goto exit_get_fwddb;
659 }
660 if (fw_ddb_entry) {
661 options = le16_to_cpu(fw_ddb_entry->options);
662 if (options & DDB_OPT_IPV6_DEVICE) {
663 ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
664 "Next %d State %04x ConnErr %08x %pI6 "
665 ":%04d \"%s\"\n", __func__, fw_ddb_index,
666 mbox_sts[0], mbox_sts[2], mbox_sts[3],
667 mbox_sts[4], mbox_sts[5],
668 fw_ddb_entry->ip_addr,
669 le16_to_cpu(fw_ddb_entry->port),
670 fw_ddb_entry->iscsi_name);
671 } else {
672 ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
673 "Next %d State %04x ConnErr %08x %pI4 "
674 ":%04d \"%s\"\n", __func__, fw_ddb_index,
675 mbox_sts[0], mbox_sts[2], mbox_sts[3],
676 mbox_sts[4], mbox_sts[5],
677 fw_ddb_entry->ip_addr,
678 le16_to_cpu(fw_ddb_entry->port),
679 fw_ddb_entry->iscsi_name);
680 }
681 }
682 if (num_valid_ddb_entries)
683 *num_valid_ddb_entries = mbox_sts[2];
684 if (next_ddb_index)
685 *next_ddb_index = mbox_sts[3];
686 if (fw_ddb_device_state)
687 *fw_ddb_device_state = mbox_sts[4];
688
689 /*
690 * RA: This mailbox has been changed to pass connection error and
691 * details. Its true for ISP4010 as per Version E - Not sure when it
692 * was changed. Get the time2wait from the fw_dd_entry field :
693 * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
694 * struct.
695 */
696 if (conn_err_detail)
697 *conn_err_detail = mbox_sts[5];
698 if (tcp_source_port_num)
699 *tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
700 if (connection_id)
701 *connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
702 status = QLA_SUCCESS;
703
704 exit_get_fwddb:
705 return status;
706 }
707
708 /**
709 * qla4xxx_set_fwddb_entry - sets a ddb entry.
710 * @ha: Pointer to host adapter structure.
711 * @fw_ddb_index: Firmware's device database index
712 * @fw_ddb_entry: Pointer to firmware's ddb entry structure, or NULL.
713 *
714 * This routine initializes or updates the adapter's device database
715 * entry for the specified device. It also triggers a login for the
716 * specified device. Therefore, it may also be used as a secondary
717 * login routine when a NULL pointer is specified for the fw_ddb_entry.
718 **/
719 int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
720 dma_addr_t fw_ddb_entry_dma)
721 {
722 uint32_t mbox_cmd[MBOX_REG_COUNT];
723 uint32_t mbox_sts[MBOX_REG_COUNT];
724 int status;
725
726 /* Do not wait for completion. The firmware will send us an
727 * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
728 */
729 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
730 memset(&mbox_sts, 0, sizeof(mbox_sts));
731
732 mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
733 mbox_cmd[1] = (uint32_t) fw_ddb_index;
734 mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
735 mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
736 mbox_cmd[4] = sizeof(struct dev_db_entry);
737
738 status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
739 &mbox_sts[0]);
740 DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n",
741 ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);)
742
743 return status;
744 }
745
746 /**
747 * qla4xxx_get_crash_record - retrieves crash record.
748 * @ha: Pointer to host adapter structure.
749 *
750 * This routine retrieves a crash record from the QLA4010 after an 8002h aen.
751 **/
752 void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
753 {
754 uint32_t mbox_cmd[MBOX_REG_COUNT];
755 uint32_t mbox_sts[MBOX_REG_COUNT];
756 struct crash_record *crash_record = NULL;
757 dma_addr_t crash_record_dma = 0;
758 uint32_t crash_record_size = 0;
759
760 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
761 memset(&mbox_sts, 0, sizeof(mbox_cmd));
762
763 /* Get size of crash record. */
764 mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
765
766 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
767 QLA_SUCCESS) {
768 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
769 ha->host_no, __func__));
770 goto exit_get_crash_record;
771 }
772 crash_record_size = mbox_sts[4];
773 if (crash_record_size == 0) {
774 DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
775 ha->host_no, __func__));
776 goto exit_get_crash_record;
777 }
778
779 /* Alloc Memory for Crash Record. */
780 crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
781 &crash_record_dma, GFP_KERNEL);
782 if (crash_record == NULL)
783 goto exit_get_crash_record;
784
785 /* Get Crash Record. */
786 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
787 memset(&mbox_sts, 0, sizeof(mbox_cmd));
788
789 mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
790 mbox_cmd[2] = LSDW(crash_record_dma);
791 mbox_cmd[3] = MSDW(crash_record_dma);
792 mbox_cmd[4] = crash_record_size;
793
794 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
795 QLA_SUCCESS)
796 goto exit_get_crash_record;
797
798 /* Dump Crash Record. */
799
800 exit_get_crash_record:
801 if (crash_record)
802 dma_free_coherent(&ha->pdev->dev, crash_record_size,
803 crash_record, crash_record_dma);
804 }
805
806 /**
807 * qla4xxx_get_conn_event_log - retrieves connection event log
808 * @ha: Pointer to host adapter structure.
809 **/
810 void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
811 {
812 uint32_t mbox_cmd[MBOX_REG_COUNT];
813 uint32_t mbox_sts[MBOX_REG_COUNT];
814 struct conn_event_log_entry *event_log = NULL;
815 dma_addr_t event_log_dma = 0;
816 uint32_t event_log_size = 0;
817 uint32_t num_valid_entries;
818 uint32_t oldest_entry = 0;
819 uint32_t max_event_log_entries;
820 uint8_t i;
821
822
823 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
824 memset(&mbox_sts, 0, sizeof(mbox_cmd));
825
826 /* Get size of crash record. */
827 mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
828
829 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
830 QLA_SUCCESS)
831 goto exit_get_event_log;
832
833 event_log_size = mbox_sts[4];
834 if (event_log_size == 0)
835 goto exit_get_event_log;
836
837 /* Alloc Memory for Crash Record. */
838 event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
839 &event_log_dma, GFP_KERNEL);
840 if (event_log == NULL)
841 goto exit_get_event_log;
842
843 /* Get Crash Record. */
844 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
845 memset(&mbox_sts, 0, sizeof(mbox_cmd));
846
847 mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
848 mbox_cmd[2] = LSDW(event_log_dma);
849 mbox_cmd[3] = MSDW(event_log_dma);
850
851 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
852 QLA_SUCCESS) {
853 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
854 "log!\n", ha->host_no, __func__));
855 goto exit_get_event_log;
856 }
857
858 /* Dump Event Log. */
859 num_valid_entries = mbox_sts[1];
860
861 max_event_log_entries = event_log_size /
862 sizeof(struct conn_event_log_entry);
863
864 if (num_valid_entries > max_event_log_entries)
865 oldest_entry = num_valid_entries % max_event_log_entries;
866
867 DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
868 ha->host_no, num_valid_entries));
869
870 if (ql4xextended_error_logging == 3) {
871 if (oldest_entry == 0) {
872 /* Circular Buffer has not wrapped around */
873 for (i=0; i < num_valid_entries; i++) {
874 qla4xxx_dump_buffer((uint8_t *)event_log+
875 (i*sizeof(*event_log)),
876 sizeof(*event_log));
877 }
878 }
879 else {
880 /* Circular Buffer has wrapped around -
881 * display accordingly*/
882 for (i=oldest_entry; i < max_event_log_entries; i++) {
883 qla4xxx_dump_buffer((uint8_t *)event_log+
884 (i*sizeof(*event_log)),
885 sizeof(*event_log));
886 }
887 for (i=0; i < oldest_entry; i++) {
888 qla4xxx_dump_buffer((uint8_t *)event_log+
889 (i*sizeof(*event_log)),
890 sizeof(*event_log));
891 }
892 }
893 }
894
895 exit_get_event_log:
896 if (event_log)
897 dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
898 event_log_dma);
899 }
900
901 /**
902 * qla4xxx_abort_task - issues Abort Task
903 * @ha: Pointer to host adapter structure.
904 * @srb: Pointer to srb entry
905 *
906 * This routine performs a LUN RESET on the specified target/lun.
907 * The caller must ensure that the ddb_entry and lun_entry pointers
908 * are valid before calling this routine.
909 **/
910 int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb)
911 {
912 uint32_t mbox_cmd[MBOX_REG_COUNT];
913 uint32_t mbox_sts[MBOX_REG_COUNT];
914 struct scsi_cmnd *cmd = srb->cmd;
915 int status = QLA_SUCCESS;
916 unsigned long flags = 0;
917 uint32_t index;
918
919 /*
920 * Send abort task command to ISP, so that the ISP will return
921 * request with ABORT status
922 */
923 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
924 memset(&mbox_sts, 0, sizeof(mbox_sts));
925
926 spin_lock_irqsave(&ha->hardware_lock, flags);
927 index = (unsigned long)(unsigned char *)cmd->host_scribble;
928 spin_unlock_irqrestore(&ha->hardware_lock, flags);
929
930 /* Firmware already posted completion on response queue */
931 if (index == MAX_SRBS)
932 return status;
933
934 mbox_cmd[0] = MBOX_CMD_ABORT_TASK;
935 mbox_cmd[1] = srb->ddb->fw_ddb_index;
936 mbox_cmd[2] = index;
937 /* Immediate Command Enable */
938 mbox_cmd[5] = 0x01;
939
940 qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
941 &mbox_sts[0]);
942 if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
943 status = QLA_ERROR;
944
945 DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%d: abort task FAILED: "
946 "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
947 ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
948 mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
949 }
950
951 return status;
952 }
953
954 /**
955 * qla4xxx_reset_lun - issues LUN Reset
956 * @ha: Pointer to host adapter structure.
957 * @ddb_entry: Pointer to device database entry
958 * @lun: lun number
959 *
960 * This routine performs a LUN RESET on the specified target/lun.
961 * The caller must ensure that the ddb_entry and lun_entry pointers
962 * are valid before calling this routine.
963 **/
964 int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
965 int lun)
966 {
967 uint32_t mbox_cmd[MBOX_REG_COUNT];
968 uint32_t mbox_sts[MBOX_REG_COUNT];
969 int status = QLA_SUCCESS;
970
971 DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no,
972 ddb_entry->fw_ddb_index, lun));
973
974 /*
975 * Send lun reset command to ISP, so that the ISP will return all
976 * outstanding requests with RESET status
977 */
978 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
979 memset(&mbox_sts, 0, sizeof(mbox_sts));
980
981 mbox_cmd[0] = MBOX_CMD_LUN_RESET;
982 mbox_cmd[1] = ddb_entry->fw_ddb_index;
983 mbox_cmd[2] = lun << 8;
984 mbox_cmd[5] = 0x01; /* Immediate Command Enable */
985
986 qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]);
987 if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
988 mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
989 status = QLA_ERROR;
990
991 return status;
992 }
993
994 /**
995 * qla4xxx_reset_target - issues target Reset
996 * @ha: Pointer to host adapter structure.
997 * @db_entry: Pointer to device database entry
998 * @un_entry: Pointer to lun entry structure
999 *
1000 * This routine performs a TARGET RESET on the specified target.
1001 * The caller must ensure that the ddb_entry pointers
1002 * are valid before calling this routine.
1003 **/
1004 int qla4xxx_reset_target(struct scsi_qla_host *ha,
1005 struct ddb_entry *ddb_entry)
1006 {
1007 uint32_t mbox_cmd[MBOX_REG_COUNT];
1008 uint32_t mbox_sts[MBOX_REG_COUNT];
1009 int status = QLA_SUCCESS;
1010
1011 DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
1012 ddb_entry->fw_ddb_index));
1013
1014 /*
1015 * Send target reset command to ISP, so that the ISP will return all
1016 * outstanding requests with RESET status
1017 */
1018 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1019 memset(&mbox_sts, 0, sizeof(mbox_sts));
1020
1021 mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
1022 mbox_cmd[1] = ddb_entry->fw_ddb_index;
1023 mbox_cmd[5] = 0x01; /* Immediate Command Enable */
1024
1025 qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1026 &mbox_sts[0]);
1027 if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1028 mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1029 status = QLA_ERROR;
1030
1031 return status;
1032 }
1033
1034 int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
1035 uint32_t offset, uint32_t len)
1036 {
1037 uint32_t mbox_cmd[MBOX_REG_COUNT];
1038 uint32_t mbox_sts[MBOX_REG_COUNT];
1039
1040 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1041 memset(&mbox_sts, 0, sizeof(mbox_sts));
1042
1043 mbox_cmd[0] = MBOX_CMD_READ_FLASH;
1044 mbox_cmd[1] = LSDW(dma_addr);
1045 mbox_cmd[2] = MSDW(dma_addr);
1046 mbox_cmd[3] = offset;
1047 mbox_cmd[4] = len;
1048
1049 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) !=
1050 QLA_SUCCESS) {
1051 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
1052 "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
1053 __func__, mbox_sts[0], mbox_sts[1], offset, len));
1054 return QLA_ERROR;
1055 }
1056 return QLA_SUCCESS;
1057 }
1058
1059 /**
1060 * qla4xxx_get_fw_version - gets firmware version
1061 * @ha: Pointer to host adapter structure.
1062 *
1063 * Retrieves the firmware version on HBA. In QLA4010, mailboxes 2 & 3 may
1064 * hold an address for data. Make sure that we write 0 to those mailboxes,
1065 * if unused.
1066 **/
1067 int qla4xxx_get_fw_version(struct scsi_qla_host * ha)
1068 {
1069 uint32_t mbox_cmd[MBOX_REG_COUNT];
1070 uint32_t mbox_sts[MBOX_REG_COUNT];
1071
1072 /* Get firmware version. */
1073 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1074 memset(&mbox_sts, 0, sizeof(mbox_sts));
1075
1076 mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
1077
1078 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1079 QLA_SUCCESS) {
1080 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_ABOUT_FW failed w/ "
1081 "status %04X\n", ha->host_no, __func__, mbox_sts[0]));
1082 return QLA_ERROR;
1083 }
1084
1085 /* Save firmware version information. */
1086 ha->firmware_version[0] = mbox_sts[1];
1087 ha->firmware_version[1] = mbox_sts[2];
1088 ha->patch_number = mbox_sts[3];
1089 ha->build_number = mbox_sts[4];
1090
1091 return QLA_SUCCESS;
1092 }
1093
1094 static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha,
1095 dma_addr_t dma_addr)
1096 {
1097 uint32_t mbox_cmd[MBOX_REG_COUNT];
1098 uint32_t mbox_sts[MBOX_REG_COUNT];
1099
1100 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1101 memset(&mbox_sts, 0, sizeof(mbox_sts));
1102
1103 mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
1104 mbox_cmd[2] = LSDW(dma_addr);
1105 mbox_cmd[3] = MSDW(dma_addr);
1106
1107 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) !=
1108 QLA_SUCCESS) {
1109 DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1110 ha->host_no, __func__, mbox_sts[0]));
1111 return QLA_ERROR;
1112 }
1113 return QLA_SUCCESS;
1114 }
1115
1116 static int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t *ddb_index)
1117 {
1118 uint32_t mbox_cmd[MBOX_REG_COUNT];
1119 uint32_t mbox_sts[MBOX_REG_COUNT];
1120
1121 memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1122 memset(&mbox_sts, 0, sizeof(mbox_sts));
1123
1124 mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
1125 mbox_cmd[1] = MAX_PRST_DEV_DB_ENTRIES;
1126
1127 if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
1128 QLA_SUCCESS) {
1129 if (mbox_sts[0] == MBOX_STS_COMMAND_ERROR) {
1130 *ddb_index = mbox_sts[2];
1131 } else {
1132 DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1133 ha->host_no, __func__, mbox_sts[0]));
1134 return QLA_ERROR;
1135 }
1136 } else {
1137 *ddb_index = MAX_PRST_DEV_DB_ENTRIES;
1138 }
1139
1140 return QLA_SUCCESS;
1141 }
1142
1143
1144 int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port)
1145 {
1146 struct dev_db_entry *fw_ddb_entry;
1147 dma_addr_t fw_ddb_entry_dma;
1148 uint32_t ddb_index;
1149 int ret_val = QLA_SUCCESS;
1150
1151
1152 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
1153 sizeof(*fw_ddb_entry),
1154 &fw_ddb_entry_dma, GFP_KERNEL);
1155 if (!fw_ddb_entry) {
1156 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
1157 ha->host_no, __func__));
1158 ret_val = QLA_ERROR;
1159 goto exit_send_tgts_no_free;
1160 }
1161
1162 ret_val = qla4xxx_get_default_ddb(ha, fw_ddb_entry_dma);
1163 if (ret_val != QLA_SUCCESS)
1164 goto exit_send_tgts;
1165
1166 ret_val = qla4xxx_req_ddb_entry(ha, &ddb_index);
1167 if (ret_val != QLA_SUCCESS)
1168 goto exit_send_tgts;
1169
1170 memset(fw_ddb_entry->iscsi_alias, 0,
1171 sizeof(fw_ddb_entry->iscsi_alias));
1172
1173 memset(fw_ddb_entry->iscsi_name, 0,
1174 sizeof(fw_ddb_entry->iscsi_name));
1175
1176 memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr));
1177 memset(fw_ddb_entry->tgt_addr, 0,
1178 sizeof(fw_ddb_entry->tgt_addr));
1179
1180 fw_ddb_entry->options = (DDB_OPT_DISC_SESSION | DDB_OPT_TARGET);
1181 fw_ddb_entry->port = cpu_to_le16(ntohs(port));
1182
1183 fw_ddb_entry->ip_addr[0] = *ip;
1184 fw_ddb_entry->ip_addr[1] = *(ip + 1);
1185 fw_ddb_entry->ip_addr[2] = *(ip + 2);
1186 fw_ddb_entry->ip_addr[3] = *(ip + 3);
1187
1188 ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma);
1189
1190 exit_send_tgts:
1191 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1192 fw_ddb_entry, fw_ddb_entry_dma);
1193 exit_send_tgts_no_free:
1194 return ret_val;
1195 }
1196
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