[SCSI] qla4xxx: Add VLAN support
[linux-2.6.git] / drivers / scsi / qla4xxx / ql4_mbx.c
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 issue 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         spin_lock_irqsave(&ha->hardware_lock, flags);
90
91         ha->mbox_status_count = outCount;
92         for (i = 0; i < outCount; i++)
93                 ha->mbox_status[i] = 0;
94
95         if (is_qla8022(ha)) {
96                 /* Load all mailbox registers, except mailbox 0. */
97                 DEBUG5(
98                     printk("scsi%ld: %s: Cmd ", ha->host_no, __func__);
99                     for (i = 0; i < inCount; i++)
100                         printk("mb%d=%04x ", i, mbx_cmd[i]);
101                     printk("\n"));
102
103                 for (i = 1; i < inCount; i++)
104                         writel(mbx_cmd[i], &ha->qla4_8xxx_reg->mailbox_in[i]);
105                 writel(mbx_cmd[0], &ha->qla4_8xxx_reg->mailbox_in[0]);
106                 readl(&ha->qla4_8xxx_reg->mailbox_in[0]);
107                 writel(HINT_MBX_INT_PENDING, &ha->qla4_8xxx_reg->hint);
108         } else {
109                 /* Load all mailbox registers, except mailbox 0. */
110                 for (i = 1; i < inCount; i++)
111                         writel(mbx_cmd[i], &ha->reg->mailbox[i]);
112
113                 /* Wakeup firmware  */
114                 writel(mbx_cmd[0], &ha->reg->mailbox[0]);
115                 readl(&ha->reg->mailbox[0]);
116                 writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
117                 readl(&ha->reg->ctrl_status);
118         }
119
120         spin_unlock_irqrestore(&ha->hardware_lock, flags);
121
122         /* Wait for completion */
123
124         /*
125          * If we don't want status, don't wait for the mailbox command to
126          * complete.  For example, MBOX_CMD_RESET_FW doesn't return status,
127          * you must poll the inbound Interrupt Mask for completion.
128          */
129         if (outCount == 0) {
130                 status = QLA_SUCCESS;
131                 goto mbox_exit;
132         }
133
134         /*
135          * Wait for completion: Poll or completion queue
136          */
137         if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
138             test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
139             test_bit(AF_ONLINE, &ha->flags) &&
140             !test_bit(AF_HA_REMOVAL, &ha->flags)) {
141                 /* Do not poll for completion. Use completion queue */
142                 set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
143                 wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ);
144                 clear_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
145         } else {
146                 /* Poll for command to complete */
147                 wait_count = jiffies + MBOX_TOV * HZ;
148                 while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) {
149                         if (time_after_eq(jiffies, wait_count))
150                                 break;
151
152                         /*
153                          * Service the interrupt.
154                          * The ISR will save the mailbox status registers
155                          * to a temporary storage location in the adapter
156                          * structure.
157                          */
158
159                         spin_lock_irqsave(&ha->hardware_lock, flags);
160                         if (is_qla8022(ha)) {
161                                 intr_status =
162                                     readl(&ha->qla4_8xxx_reg->host_int);
163                                 if (intr_status & ISRX_82XX_RISC_INT) {
164                                         ha->mbox_status_count = outCount;
165                                         intr_status =
166                                          readl(&ha->qla4_8xxx_reg->host_status);
167                                         ha->isp_ops->interrupt_service_routine(
168                                             ha, intr_status);
169                                         if (test_bit(AF_INTERRUPTS_ON,
170                                             &ha->flags) &&
171                                             test_bit(AF_INTx_ENABLED,
172                                             &ha->flags))
173                                                 qla4_8xxx_wr_32(ha,
174                                                 ha->nx_legacy_intr.tgt_mask_reg,
175                                                 0xfbff);
176                                 }
177                         } else {
178                                 intr_status = readl(&ha->reg->ctrl_status);
179                                 if (intr_status & INTR_PENDING) {
180                                         /*
181                                          * Service the interrupt.
182                                          * The ISR will save the mailbox status
183                                          * registers to a temporary storage
184                                          * location in the adapter structure.
185                                          */
186                                         ha->mbox_status_count = outCount;
187                                         ha->isp_ops->interrupt_service_routine(
188                                             ha, intr_status);
189                                 }
190                         }
191                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
192                         msleep(10);
193                 }
194         }
195
196         /* Check for mailbox timeout. */
197         if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
198                 if (is_qla8022(ha) &&
199                     test_bit(AF_FW_RECOVERY, &ha->flags)) {
200                         DEBUG2(ql4_printk(KERN_INFO, ha,
201                             "scsi%ld: %s: prematurely completing mbx cmd as "
202                             "firmware recovery detected\n",
203                             ha->host_no, __func__));
204                         goto mbox_exit;
205                 }
206                 DEBUG2(printk("scsi%ld: Mailbox Cmd 0x%08X timed out ...,"
207                               " Scheduling Adapter Reset\n", ha->host_no,
208                               mbx_cmd[0]));
209                 ha->mailbox_timeout_count++;
210                 mbx_sts[0] = (-1);
211                 set_bit(DPC_RESET_HA, &ha->dpc_flags);
212                 goto mbox_exit;
213         }
214
215         /*
216          * Copy the mailbox out registers to the caller's mailbox in/out
217          * structure.
218          */
219         spin_lock_irqsave(&ha->hardware_lock, flags);
220         for (i = 0; i < outCount; i++)
221                 mbx_sts[i] = ha->mbox_status[i];
222
223         /* Set return status and error flags (if applicable). */
224         switch (ha->mbox_status[0]) {
225         case MBOX_STS_COMMAND_COMPLETE:
226                 status = QLA_SUCCESS;
227                 break;
228
229         case MBOX_STS_INTERMEDIATE_COMPLETION:
230                 status = QLA_SUCCESS;
231                 break;
232
233         case MBOX_STS_BUSY:
234                 DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
235                                ha->host_no, __func__, mbx_cmd[0]));
236                 ha->mailbox_timeout_count++;
237                 break;
238
239         default:
240                 DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, "
241                               "sts = %08X ****\n", ha->host_no, __func__,
242                               mbx_cmd[0], mbx_sts[0]));
243                 break;
244         }
245         spin_unlock_irqrestore(&ha->hardware_lock, flags);
246
247 mbox_exit:
248         mutex_lock(&ha->mbox_sem);
249         clear_bit(AF_MBOX_COMMAND, &ha->flags);
250         mutex_unlock(&ha->mbox_sem);
251         clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
252
253         return status;
254 }
255
256 void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
257 {
258         set_bit(AF_FW_RECOVERY, &ha->flags);
259         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: set FW RECOVERY!\n",
260             ha->host_no, __func__);
261
262         if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
263                 if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) {
264                         complete(&ha->mbx_intr_comp);
265                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
266                             "recovery, doing premature completion of "
267                             "mbx cmd\n", ha->host_no, __func__);
268
269                 } else {
270                         set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
271                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
272                             "recovery, doing premature completion of "
273                             "polling mbx cmd\n", ha->host_no, __func__);
274                 }
275         }
276 }
277
278 static uint8_t
279 qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
280                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
281 {
282         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
283         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
284
285         if (is_qla8022(ha))
286                 qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, 0);
287
288         mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
289         mbox_cmd[1] = 0;
290         mbox_cmd[2] = LSDW(init_fw_cb_dma);
291         mbox_cmd[3] = MSDW(init_fw_cb_dma);
292         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
293         mbox_cmd[5] = (IFCB_VER_MAX << 8) | IFCB_VER_MIN;
294
295         if (qla4xxx_mailbox_command(ha, 6, 6, mbox_cmd, mbox_sts) !=
296             QLA_SUCCESS) {
297                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
298                               "MBOX_CMD_INITIALIZE_FIRMWARE"
299                               " failed w/ status %04X\n",
300                               ha->host_no, __func__, mbox_sts[0]));
301                 return QLA_ERROR;
302         }
303         return QLA_SUCCESS;
304 }
305
306 uint8_t
307 qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
308                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
309 {
310         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
311         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
312         mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
313         mbox_cmd[2] = LSDW(init_fw_cb_dma);
314         mbox_cmd[3] = MSDW(init_fw_cb_dma);
315         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
316
317         if (qla4xxx_mailbox_command(ha, 5, 5, mbox_cmd, mbox_sts) !=
318             QLA_SUCCESS) {
319                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
320                               "MBOX_CMD_GET_INIT_FW_CTRL_BLOCK"
321                               " failed w/ status %04X\n",
322                               ha->host_no, __func__, mbox_sts[0]));
323                 return QLA_ERROR;
324         }
325         return QLA_SUCCESS;
326 }
327
328 static void
329 qla4xxx_update_local_ip(struct scsi_qla_host *ha,
330                         struct addr_ctrl_blk *init_fw_cb)
331 {
332         ha->ip_config.tcp_options = le16_to_cpu(init_fw_cb->ipv4_tcp_opts);
333         ha->ip_config.ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
334         ha->ip_config.ipv4_addr_state =
335                                 le16_to_cpu(init_fw_cb->ipv4_addr_state);
336
337         if (ha->acb_version == ACB_SUPPORTED) {
338                 ha->ip_config.ipv6_options = le16_to_cpu(init_fw_cb->ipv6_opts);
339                 ha->ip_config.ipv6_addl_options =
340                                 le16_to_cpu(init_fw_cb->ipv6_addtl_opts);
341         }
342
343         /* Save IPv4 Address Info */
344         memcpy(ha->ip_config.ip_address, init_fw_cb->ipv4_addr,
345                min(sizeof(ha->ip_config.ip_address),
346                    sizeof(init_fw_cb->ipv4_addr)));
347         memcpy(ha->ip_config.subnet_mask, init_fw_cb->ipv4_subnet,
348                min(sizeof(ha->ip_config.subnet_mask),
349                    sizeof(init_fw_cb->ipv4_subnet)));
350         memcpy(ha->ip_config.gateway, init_fw_cb->ipv4_gw_addr,
351                min(sizeof(ha->ip_config.gateway),
352                    sizeof(init_fw_cb->ipv4_gw_addr)));
353
354         ha->ip_config.ipv4_vlan_tag = be16_to_cpu(init_fw_cb->ipv4_vlan_tag);
355
356         if (is_ipv6_enabled(ha)) {
357                 /* Save IPv6 Address */
358                 ha->ip_config.ipv6_link_local_state =
359                         le16_to_cpu(init_fw_cb->ipv6_lnk_lcl_addr_state);
360                 ha->ip_config.ipv6_addr0_state =
361                                 le16_to_cpu(init_fw_cb->ipv6_addr0_state);
362                 ha->ip_config.ipv6_addr1_state =
363                                 le16_to_cpu(init_fw_cb->ipv6_addr1_state);
364                 ha->ip_config.ipv6_default_router_state =
365                                 le16_to_cpu(init_fw_cb->ipv6_dflt_rtr_state);
366                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[0] = 0xFE;
367                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[1] = 0x80;
368
369                 memcpy(&ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[8],
370                        init_fw_cb->ipv6_if_id,
371                        min(sizeof(ha->ip_config.ipv6_link_local_addr)/2,
372                            sizeof(init_fw_cb->ipv6_if_id)));
373                 memcpy(&ha->ip_config.ipv6_addr0, init_fw_cb->ipv6_addr0,
374                        min(sizeof(ha->ip_config.ipv6_addr0),
375                            sizeof(init_fw_cb->ipv6_addr0)));
376                 memcpy(&ha->ip_config.ipv6_addr1, init_fw_cb->ipv6_addr1,
377                        min(sizeof(ha->ip_config.ipv6_addr1),
378                            sizeof(init_fw_cb->ipv6_addr1)));
379                 memcpy(&ha->ip_config.ipv6_default_router_addr,
380                        init_fw_cb->ipv6_dflt_rtr_addr,
381                        min(sizeof(ha->ip_config.ipv6_default_router_addr),
382                            sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
383                 ha->ip_config.ipv6_vlan_tag =
384                                 be16_to_cpu(init_fw_cb->ipv6_vlan_tag);
385         }
386 }
387
388 uint8_t
389 qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
390                           uint32_t *mbox_cmd,
391                           uint32_t *mbox_sts,
392                           struct addr_ctrl_blk  *init_fw_cb,
393                           dma_addr_t init_fw_cb_dma)
394 {
395         if (qla4xxx_get_ifcb(ha, mbox_cmd, mbox_sts, init_fw_cb_dma)
396             != QLA_SUCCESS) {
397                 DEBUG2(printk(KERN_WARNING
398                               "scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
399                               ha->host_no, __func__));
400                 return QLA_ERROR;
401         }
402
403         DEBUG2(qla4xxx_dump_buffer(init_fw_cb, sizeof(struct addr_ctrl_blk)));
404
405         /* Save some info in adapter structure. */
406         ha->acb_version = init_fw_cb->acb_version;
407         ha->firmware_options = le16_to_cpu(init_fw_cb->fw_options);
408         ha->heartbeat_interval = init_fw_cb->hb_interval;
409         memcpy(ha->name_string, init_fw_cb->iscsi_name,
410                 min(sizeof(ha->name_string),
411                 sizeof(init_fw_cb->iscsi_name)));
412         /*memcpy(ha->alias, init_fw_cb->Alias,
413                min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
414
415         qla4xxx_update_local_ip(ha, init_fw_cb);
416
417         return QLA_SUCCESS;
418 }
419
420 /**
421  * qla4xxx_initialize_fw_cb - initializes firmware control block.
422  * @ha: Pointer to host adapter structure.
423  **/
424 int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
425 {
426         struct addr_ctrl_blk *init_fw_cb;
427         dma_addr_t init_fw_cb_dma;
428         uint32_t mbox_cmd[MBOX_REG_COUNT];
429         uint32_t mbox_sts[MBOX_REG_COUNT];
430         int status = QLA_ERROR;
431
432         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
433                                         sizeof(struct addr_ctrl_blk),
434                                         &init_fw_cb_dma, GFP_KERNEL);
435         if (init_fw_cb == NULL) {
436                 DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
437                               ha->host_no, __func__));
438                 goto exit_init_fw_cb_no_free;
439         }
440         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
441
442         /* Get Initialize Firmware Control Block. */
443         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
444         memset(&mbox_sts, 0, sizeof(mbox_sts));
445
446         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
447             QLA_SUCCESS) {
448                 dma_free_coherent(&ha->pdev->dev,
449                                   sizeof(struct addr_ctrl_blk),
450                                   init_fw_cb, init_fw_cb_dma);
451                 goto exit_init_fw_cb;
452         }
453
454         /* Initialize request and response queues. */
455         qla4xxx_init_rings(ha);
456
457         /* Fill in the request and response queue information. */
458         init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
459         init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
460         init_fw_cb->rqq_len = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH);
461         init_fw_cb->compq_len = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH);
462         init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
463         init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
464         init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
465         init_fw_cb->compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma));
466         init_fw_cb->shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma));
467         init_fw_cb->shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma));
468
469         /* Set up required options. */
470         init_fw_cb->fw_options |=
471                 __constant_cpu_to_le16(FWOPT_SESSION_MODE |
472                                        FWOPT_INITIATOR_MODE);
473
474         if (is_qla8022(ha))
475                 init_fw_cb->fw_options |=
476                     __constant_cpu_to_le16(FWOPT_ENABLE_CRBDB);
477
478         init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
479
480         /* Set bit for "serialize task mgmt" all other bits need to be zero */
481         init_fw_cb->add_fw_options = 0;
482         init_fw_cb->add_fw_options |=
483             __constant_cpu_to_le16(SERIALIZE_TASK_MGMT);
484
485         if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
486                 != QLA_SUCCESS) {
487                 DEBUG2(printk(KERN_WARNING
488                               "scsi%ld: %s: Failed to set init_fw_ctrl_blk\n",
489                               ha->host_no, __func__));
490                 goto exit_init_fw_cb;
491         }
492
493         if (qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0],
494                 init_fw_cb, init_fw_cb_dma) != QLA_SUCCESS) {
495                 DEBUG2(printk("scsi%ld: %s: Failed to update local ifcb\n",
496                                 ha->host_no, __func__));
497                 goto exit_init_fw_cb;
498         }
499         status = QLA_SUCCESS;
500
501 exit_init_fw_cb:
502         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
503                                 init_fw_cb, init_fw_cb_dma);
504 exit_init_fw_cb_no_free:
505         return status;
506 }
507
508 /**
509  * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP
510  * @ha: Pointer to host adapter structure.
511  **/
512 int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
513 {
514         struct addr_ctrl_blk *init_fw_cb;
515         dma_addr_t init_fw_cb_dma;
516         uint32_t mbox_cmd[MBOX_REG_COUNT];
517         uint32_t mbox_sts[MBOX_REG_COUNT];
518
519         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
520                                         sizeof(struct addr_ctrl_blk),
521                                         &init_fw_cb_dma, GFP_KERNEL);
522         if (init_fw_cb == NULL) {
523                 printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
524                        __func__);
525                 return QLA_ERROR;
526         }
527
528         /* Get Initialize Firmware Control Block. */
529         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
530         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
531             QLA_SUCCESS) {
532                 DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
533                               ha->host_no, __func__));
534                 dma_free_coherent(&ha->pdev->dev,
535                                   sizeof(struct addr_ctrl_blk),
536                                   init_fw_cb, init_fw_cb_dma);
537                 return QLA_ERROR;
538         }
539
540         /* Save IP Address. */
541         qla4xxx_update_local_ip(ha, init_fw_cb);
542         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
543                                 init_fw_cb, init_fw_cb_dma);
544
545         return QLA_SUCCESS;
546 }
547
548 /**
549  * qla4xxx_get_firmware_state - gets firmware state of HBA
550  * @ha: Pointer to host adapter structure.
551  **/
552 int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
553 {
554         uint32_t mbox_cmd[MBOX_REG_COUNT];
555         uint32_t mbox_sts[MBOX_REG_COUNT];
556
557         /* Get firmware version */
558         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
559         memset(&mbox_sts, 0, sizeof(mbox_sts));
560
561         mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
562
563         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) !=
564             QLA_SUCCESS) {
565                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
566                               "status %04X\n", ha->host_no, __func__,
567                               mbox_sts[0]));
568                 return QLA_ERROR;
569         }
570         ha->firmware_state = mbox_sts[1];
571         ha->board_id = mbox_sts[2];
572         ha->addl_fw_state = mbox_sts[3];
573         DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
574                       ha->host_no, __func__, ha->firmware_state);)
575
576         return QLA_SUCCESS;
577 }
578
579 /**
580  * qla4xxx_get_firmware_status - retrieves firmware status
581  * @ha: Pointer to host adapter structure.
582  **/
583 int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
584 {
585         uint32_t mbox_cmd[MBOX_REG_COUNT];
586         uint32_t mbox_sts[MBOX_REG_COUNT];
587
588         /* Get firmware version */
589         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
590         memset(&mbox_sts, 0, sizeof(mbox_sts));
591
592         mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
593
594         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
595             QLA_SUCCESS) {
596                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
597                               "status %04X\n", ha->host_no, __func__,
598                               mbox_sts[0]));
599                 return QLA_ERROR;
600         }
601
602         ql4_printk(KERN_INFO, ha, "%ld firmare IOCBs available (%d).\n",
603             ha->host_no, mbox_sts[2]);
604
605         return QLA_SUCCESS;
606 }
607
608 /**
609  * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry
610  * @ha: Pointer to host adapter structure.
611  * @fw_ddb_index: Firmware's device database index
612  * @fw_ddb_entry: Pointer to firmware's device database entry structure
613  * @num_valid_ddb_entries: Pointer to number of valid ddb entries
614  * @next_ddb_index: Pointer to next valid device database index
615  * @fw_ddb_device_state: Pointer to device state
616  **/
617 int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
618                             uint16_t fw_ddb_index,
619                             struct dev_db_entry *fw_ddb_entry,
620                             dma_addr_t fw_ddb_entry_dma,
621                             uint32_t *num_valid_ddb_entries,
622                             uint32_t *next_ddb_index,
623                             uint32_t *fw_ddb_device_state,
624                             uint32_t *conn_err_detail,
625                             uint16_t *tcp_source_port_num,
626                             uint16_t *connection_id)
627 {
628         int status = QLA_ERROR;
629         uint16_t options;
630         uint32_t mbox_cmd[MBOX_REG_COUNT];
631         uint32_t mbox_sts[MBOX_REG_COUNT];
632
633         /* Make sure the device index is valid */
634         if (fw_ddb_index >= MAX_DDB_ENTRIES) {
635                 DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n",
636                               ha->host_no, __func__, fw_ddb_index));
637                 goto exit_get_fwddb;
638         }
639         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
640         memset(&mbox_sts, 0, sizeof(mbox_sts));
641
642         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
643         mbox_cmd[1] = (uint32_t) fw_ddb_index;
644         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
645         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
646         mbox_cmd[4] = sizeof(struct dev_db_entry);
647
648         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) ==
649             QLA_ERROR) {
650                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
651                               " with status 0x%04X\n", ha->host_no, __func__,
652                               mbox_sts[0]));
653                 goto exit_get_fwddb;
654         }
655         if (fw_ddb_index != mbox_sts[1]) {
656                 DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n",
657                               ha->host_no, __func__, fw_ddb_index,
658                               mbox_sts[1]));
659                 goto exit_get_fwddb;
660         }
661         if (fw_ddb_entry) {
662                 options = le16_to_cpu(fw_ddb_entry->options);
663                 if (options & DDB_OPT_IPV6_DEVICE) {
664                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
665                                 "Next %d State %04x ConnErr %08x %pI6 "
666                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
667                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
668                                 mbox_sts[4], mbox_sts[5],
669                                 fw_ddb_entry->ip_addr,
670                                 le16_to_cpu(fw_ddb_entry->port),
671                                 fw_ddb_entry->iscsi_name);
672                 } else {
673                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
674                                 "Next %d State %04x ConnErr %08x %pI4 "
675                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
676                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
677                                 mbox_sts[4], mbox_sts[5],
678                                 fw_ddb_entry->ip_addr,
679                                 le16_to_cpu(fw_ddb_entry->port),
680                                 fw_ddb_entry->iscsi_name);
681                 }
682         }
683         if (num_valid_ddb_entries)
684                 *num_valid_ddb_entries = mbox_sts[2];
685         if (next_ddb_index)
686                 *next_ddb_index = mbox_sts[3];
687         if (fw_ddb_device_state)
688                 *fw_ddb_device_state = mbox_sts[4];
689
690         /*
691          * RA: This mailbox has been changed to pass connection error and
692          * details.  Its true for ISP4010 as per Version E - Not sure when it
693          * was changed.  Get the time2wait from the fw_dd_entry field :
694          * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
695          * struct.
696          */
697         if (conn_err_detail)
698                 *conn_err_detail = mbox_sts[5];
699         if (tcp_source_port_num)
700                 *tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
701         if (connection_id)
702                 *connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
703         status = QLA_SUCCESS;
704
705 exit_get_fwddb:
706         return status;
707 }
708
709 /**
710  * qla4xxx_set_fwddb_entry - sets a ddb entry.
711  * @ha: Pointer to host adapter structure.
712  * @fw_ddb_index: Firmware's device database index
713  * @fw_ddb_entry: Pointer to firmware's ddb entry structure, or NULL.
714  *
715  * This routine initializes or updates the adapter's device database
716  * entry for the specified device. It also triggers a login for the
717  * specified device. Therefore, it may also be used as a secondary
718  * login routine when a NULL pointer is specified for the fw_ddb_entry.
719  **/
720 int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
721                           dma_addr_t fw_ddb_entry_dma)
722 {
723         uint32_t mbox_cmd[MBOX_REG_COUNT];
724         uint32_t mbox_sts[MBOX_REG_COUNT];
725         int status;
726
727         /* Do not wait for completion. The firmware will send us an
728          * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
729          */
730         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
731         memset(&mbox_sts, 0, sizeof(mbox_sts));
732
733         mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
734         mbox_cmd[1] = (uint32_t) fw_ddb_index;
735         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
736         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
737         mbox_cmd[4] = sizeof(struct dev_db_entry);
738
739         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
740             &mbox_sts[0]);
741         DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n",
742             ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);)
743
744         return status;
745 }
746
747 /**
748  * qla4xxx_get_crash_record - retrieves crash record.
749  * @ha: Pointer to host adapter structure.
750  *
751  * This routine retrieves a crash record from the QLA4010 after an 8002h aen.
752  **/
753 void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
754 {
755         uint32_t mbox_cmd[MBOX_REG_COUNT];
756         uint32_t mbox_sts[MBOX_REG_COUNT];
757         struct crash_record *crash_record = NULL;
758         dma_addr_t crash_record_dma = 0;
759         uint32_t crash_record_size = 0;
760
761         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
762         memset(&mbox_sts, 0, sizeof(mbox_cmd));
763
764         /* Get size of crash record. */
765         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
766
767         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
768             QLA_SUCCESS) {
769                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
770                               ha->host_no, __func__));
771                 goto exit_get_crash_record;
772         }
773         crash_record_size = mbox_sts[4];
774         if (crash_record_size == 0) {
775                 DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
776                               ha->host_no, __func__));
777                 goto exit_get_crash_record;
778         }
779
780         /* Alloc Memory for Crash Record. */
781         crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
782                                           &crash_record_dma, GFP_KERNEL);
783         if (crash_record == NULL)
784                 goto exit_get_crash_record;
785
786         /* Get Crash Record. */
787         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
788         memset(&mbox_sts, 0, sizeof(mbox_cmd));
789
790         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
791         mbox_cmd[2] = LSDW(crash_record_dma);
792         mbox_cmd[3] = MSDW(crash_record_dma);
793         mbox_cmd[4] = crash_record_size;
794
795         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
796             QLA_SUCCESS)
797                 goto exit_get_crash_record;
798
799         /* Dump Crash Record. */
800
801 exit_get_crash_record:
802         if (crash_record)
803                 dma_free_coherent(&ha->pdev->dev, crash_record_size,
804                                   crash_record, crash_record_dma);
805 }
806
807 /**
808  * qla4xxx_get_conn_event_log - retrieves connection event log
809  * @ha: Pointer to host adapter structure.
810  **/
811 void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
812 {
813         uint32_t mbox_cmd[MBOX_REG_COUNT];
814         uint32_t mbox_sts[MBOX_REG_COUNT];
815         struct conn_event_log_entry *event_log = NULL;
816         dma_addr_t event_log_dma = 0;
817         uint32_t event_log_size = 0;
818         uint32_t num_valid_entries;
819         uint32_t      oldest_entry = 0;
820         uint32_t        max_event_log_entries;
821         uint8_t         i;
822
823
824         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
825         memset(&mbox_sts, 0, sizeof(mbox_cmd));
826
827         /* Get size of crash record. */
828         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
829
830         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
831             QLA_SUCCESS)
832                 goto exit_get_event_log;
833
834         event_log_size = mbox_sts[4];
835         if (event_log_size == 0)
836                 goto exit_get_event_log;
837
838         /* Alloc Memory for Crash Record. */
839         event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
840                                        &event_log_dma, GFP_KERNEL);
841         if (event_log == NULL)
842                 goto exit_get_event_log;
843
844         /* Get Crash Record. */
845         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
846         memset(&mbox_sts, 0, sizeof(mbox_cmd));
847
848         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
849         mbox_cmd[2] = LSDW(event_log_dma);
850         mbox_cmd[3] = MSDW(event_log_dma);
851
852         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
853             QLA_SUCCESS) {
854                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
855                               "log!\n", ha->host_no, __func__));
856                 goto exit_get_event_log;
857         }
858
859         /* Dump Event Log. */
860         num_valid_entries = mbox_sts[1];
861
862         max_event_log_entries = event_log_size /
863                 sizeof(struct conn_event_log_entry);
864
865         if (num_valid_entries > max_event_log_entries)
866                 oldest_entry = num_valid_entries % max_event_log_entries;
867
868         DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
869                       ha->host_no, num_valid_entries));
870
871         if (ql4xextended_error_logging == 3) {
872                 if (oldest_entry == 0) {
873                         /* Circular Buffer has not wrapped around */
874                         for (i=0; i < num_valid_entries; i++) {
875                                 qla4xxx_dump_buffer((uint8_t *)event_log+
876                                                     (i*sizeof(*event_log)),
877                                                     sizeof(*event_log));
878                         }
879                 }
880                 else {
881                         /* Circular Buffer has wrapped around -
882                          * display accordingly*/
883                         for (i=oldest_entry; i < max_event_log_entries; i++) {
884                                 qla4xxx_dump_buffer((uint8_t *)event_log+
885                                                     (i*sizeof(*event_log)),
886                                                     sizeof(*event_log));
887                         }
888                         for (i=0; i < oldest_entry; i++) {
889                                 qla4xxx_dump_buffer((uint8_t *)event_log+
890                                                     (i*sizeof(*event_log)),
891                                                     sizeof(*event_log));
892                         }
893                 }
894         }
895
896 exit_get_event_log:
897         if (event_log)
898                 dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
899                                   event_log_dma);
900 }
901
902 /**
903  * qla4xxx_abort_task - issues Abort Task
904  * @ha: Pointer to host adapter structure.
905  * @srb: Pointer to srb entry
906  *
907  * This routine performs a LUN RESET on the specified target/lun.
908  * The caller must ensure that the ddb_entry and lun_entry pointers
909  * are valid before calling this routine.
910  **/
911 int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb)
912 {
913         uint32_t mbox_cmd[MBOX_REG_COUNT];
914         uint32_t mbox_sts[MBOX_REG_COUNT];
915         struct scsi_cmnd *cmd = srb->cmd;
916         int status = QLA_SUCCESS;
917         unsigned long flags = 0;
918         uint32_t index;
919
920         /*
921          * Send abort task command to ISP, so that the ISP will return
922          * request with ABORT status
923          */
924         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
925         memset(&mbox_sts, 0, sizeof(mbox_sts));
926
927         spin_lock_irqsave(&ha->hardware_lock, flags);
928         index = (unsigned long)(unsigned char *)cmd->host_scribble;
929         spin_unlock_irqrestore(&ha->hardware_lock, flags);
930
931         /* Firmware already posted completion on response queue */
932         if (index == MAX_SRBS)
933                 return status;
934
935         mbox_cmd[0] = MBOX_CMD_ABORT_TASK;
936         mbox_cmd[1] = srb->ddb->fw_ddb_index;
937         mbox_cmd[2] = index;
938         /* Immediate Command Enable */
939         mbox_cmd[5] = 0x01;
940
941         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
942             &mbox_sts[0]);
943         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
944                 status = QLA_ERROR;
945
946                 DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%d: abort task FAILED: "
947                     "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
948                     ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
949                     mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
950         }
951
952         return status;
953 }
954
955 /**
956  * qla4xxx_reset_lun - issues LUN Reset
957  * @ha: Pointer to host adapter structure.
958  * @ddb_entry: Pointer to device database entry
959  * @lun: lun number
960  *
961  * This routine performs a LUN RESET on the specified target/lun.
962  * The caller must ensure that the ddb_entry and lun_entry pointers
963  * are valid before calling this routine.
964  **/
965 int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
966                       int lun)
967 {
968         uint32_t mbox_cmd[MBOX_REG_COUNT];
969         uint32_t mbox_sts[MBOX_REG_COUNT];
970         int status = QLA_SUCCESS;
971
972         DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no,
973                       ddb_entry->fw_ddb_index, lun));
974
975         /*
976          * Send lun reset command to ISP, so that the ISP will return all
977          * outstanding requests with RESET status
978          */
979         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
980         memset(&mbox_sts, 0, sizeof(mbox_sts));
981
982         mbox_cmd[0] = MBOX_CMD_LUN_RESET;
983         mbox_cmd[1] = ddb_entry->fw_ddb_index;
984         mbox_cmd[2] = lun << 8;
985         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
986
987         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]);
988         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
989             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
990                 status = QLA_ERROR;
991
992         return status;
993 }
994
995 /**
996  * qla4xxx_reset_target - issues target Reset
997  * @ha: Pointer to host adapter structure.
998  * @db_entry: Pointer to device database entry
999  * @un_entry: Pointer to lun entry structure
1000  *
1001  * This routine performs a TARGET RESET on the specified target.
1002  * The caller must ensure that the ddb_entry pointers
1003  * are valid before calling this routine.
1004  **/
1005 int qla4xxx_reset_target(struct scsi_qla_host *ha,
1006                          struct ddb_entry *ddb_entry)
1007 {
1008         uint32_t mbox_cmd[MBOX_REG_COUNT];
1009         uint32_t mbox_sts[MBOX_REG_COUNT];
1010         int status = QLA_SUCCESS;
1011
1012         DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
1013                       ddb_entry->fw_ddb_index));
1014
1015         /*
1016          * Send target reset command to ISP, so that the ISP will return all
1017          * outstanding requests with RESET status
1018          */
1019         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1020         memset(&mbox_sts, 0, sizeof(mbox_sts));
1021
1022         mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
1023         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1024         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1025
1026         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1027                                 &mbox_sts[0]);
1028         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1029             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1030                 status = QLA_ERROR;
1031
1032         return status;
1033 }
1034
1035 int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
1036                       uint32_t offset, uint32_t len)
1037 {
1038         uint32_t mbox_cmd[MBOX_REG_COUNT];
1039         uint32_t mbox_sts[MBOX_REG_COUNT];
1040
1041         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1042         memset(&mbox_sts, 0, sizeof(mbox_sts));
1043
1044         mbox_cmd[0] = MBOX_CMD_READ_FLASH;
1045         mbox_cmd[1] = LSDW(dma_addr);
1046         mbox_cmd[2] = MSDW(dma_addr);
1047         mbox_cmd[3] = offset;
1048         mbox_cmd[4] = len;
1049
1050         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) !=
1051             QLA_SUCCESS) {
1052                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
1053                     "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
1054                     __func__, mbox_sts[0], mbox_sts[1], offset, len));
1055                 return QLA_ERROR;
1056         }
1057         return QLA_SUCCESS;
1058 }
1059
1060 /**
1061  * qla4xxx_about_firmware - gets FW, iscsi draft and boot loader version
1062  * @ha: Pointer to host adapter structure.
1063  *
1064  * Retrieves the FW version, iSCSI draft version & bootloader version of HBA.
1065  * Mailboxes 2 & 3 may hold an address for data. Make sure that we write 0 to
1066  * those mailboxes, if unused.
1067  **/
1068 int qla4xxx_about_firmware(struct scsi_qla_host *ha)
1069 {
1070         struct about_fw_info *about_fw = NULL;
1071         dma_addr_t about_fw_dma;
1072         uint32_t mbox_cmd[MBOX_REG_COUNT];
1073         uint32_t mbox_sts[MBOX_REG_COUNT];
1074         int status = QLA_ERROR;
1075
1076         about_fw = dma_alloc_coherent(&ha->pdev->dev,
1077                                       sizeof(struct about_fw_info),
1078                                       &about_fw_dma, GFP_KERNEL);
1079         if (!about_fw) {
1080                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory "
1081                                   "for about_fw\n", __func__));
1082                 return status;
1083         }
1084
1085         memset(about_fw, 0, sizeof(struct about_fw_info));
1086         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1087         memset(&mbox_sts, 0, sizeof(mbox_sts));
1088
1089         mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
1090         mbox_cmd[2] = LSDW(about_fw_dma);
1091         mbox_cmd[3] = MSDW(about_fw_dma);
1092         mbox_cmd[4] = sizeof(struct about_fw_info);
1093
1094         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1095                                          &mbox_cmd[0], &mbox_sts[0]);
1096         if (status != QLA_SUCCESS) {
1097                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_ABOUT_FW "
1098                                   "failed w/ status %04X\n", __func__,
1099                                   mbox_sts[0]));
1100                 goto exit_about_fw;
1101         }
1102
1103         /* Save version information. */
1104         ha->firmware_version[0] = le16_to_cpu(about_fw->fw_major);
1105         ha->firmware_version[1] = le16_to_cpu(about_fw->fw_minor);
1106         ha->patch_number = le16_to_cpu(about_fw->fw_patch);
1107         ha->build_number = le16_to_cpu(about_fw->fw_build);
1108         ha->iscsi_major = le16_to_cpu(about_fw->iscsi_major);
1109         ha->iscsi_minor = le16_to_cpu(about_fw->iscsi_minor);
1110         ha->bootload_major = le16_to_cpu(about_fw->bootload_major);
1111         ha->bootload_minor = le16_to_cpu(about_fw->bootload_minor);
1112         ha->bootload_patch = le16_to_cpu(about_fw->bootload_patch);
1113         ha->bootload_build = le16_to_cpu(about_fw->bootload_build);
1114         status = QLA_SUCCESS;
1115
1116 exit_about_fw:
1117         dma_free_coherent(&ha->pdev->dev, sizeof(struct about_fw_info),
1118                           about_fw, about_fw_dma);
1119         return status;
1120 }
1121
1122 static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha,
1123                                    dma_addr_t dma_addr)
1124 {
1125         uint32_t mbox_cmd[MBOX_REG_COUNT];
1126         uint32_t mbox_sts[MBOX_REG_COUNT];
1127
1128         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1129         memset(&mbox_sts, 0, sizeof(mbox_sts));
1130
1131         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
1132         mbox_cmd[2] = LSDW(dma_addr);
1133         mbox_cmd[3] = MSDW(dma_addr);
1134
1135         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) !=
1136             QLA_SUCCESS) {
1137                 DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1138                      ha->host_no, __func__, mbox_sts[0]));
1139                 return QLA_ERROR;
1140         }
1141         return QLA_SUCCESS;
1142 }
1143
1144 static int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t *ddb_index)
1145 {
1146         uint32_t mbox_cmd[MBOX_REG_COUNT];
1147         uint32_t mbox_sts[MBOX_REG_COUNT];
1148
1149         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1150         memset(&mbox_sts, 0, sizeof(mbox_sts));
1151
1152         mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
1153         mbox_cmd[1] = MAX_PRST_DEV_DB_ENTRIES;
1154
1155         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
1156             QLA_SUCCESS) {
1157                 if (mbox_sts[0] == MBOX_STS_COMMAND_ERROR) {
1158                         *ddb_index = mbox_sts[2];
1159                 } else {
1160                         DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1161                              ha->host_no, __func__, mbox_sts[0]));
1162                         return QLA_ERROR;
1163                 }
1164         } else {
1165                 *ddb_index = MAX_PRST_DEV_DB_ENTRIES;
1166         }
1167
1168         return QLA_SUCCESS;
1169 }
1170
1171
1172 int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port)
1173 {
1174         struct dev_db_entry *fw_ddb_entry;
1175         dma_addr_t fw_ddb_entry_dma;
1176         uint32_t ddb_index;
1177         int ret_val = QLA_SUCCESS;
1178
1179
1180         fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
1181                                           sizeof(*fw_ddb_entry),
1182                                           &fw_ddb_entry_dma, GFP_KERNEL);
1183         if (!fw_ddb_entry) {
1184                 DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
1185                               ha->host_no, __func__));
1186                 ret_val = QLA_ERROR;
1187                 goto exit_send_tgts_no_free;
1188         }
1189
1190         ret_val = qla4xxx_get_default_ddb(ha, fw_ddb_entry_dma);
1191         if (ret_val != QLA_SUCCESS)
1192                 goto exit_send_tgts;
1193
1194         ret_val = qla4xxx_req_ddb_entry(ha, &ddb_index);
1195         if (ret_val != QLA_SUCCESS)
1196                 goto exit_send_tgts;
1197
1198         memset(fw_ddb_entry->iscsi_alias, 0,
1199                sizeof(fw_ddb_entry->iscsi_alias));
1200
1201         memset(fw_ddb_entry->iscsi_name, 0,
1202                sizeof(fw_ddb_entry->iscsi_name));
1203
1204         memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr));
1205         memset(fw_ddb_entry->tgt_addr, 0,
1206                sizeof(fw_ddb_entry->tgt_addr));
1207
1208         fw_ddb_entry->options = (DDB_OPT_DISC_SESSION | DDB_OPT_TARGET);
1209         fw_ddb_entry->port = cpu_to_le16(ntohs(port));
1210
1211         fw_ddb_entry->ip_addr[0] = *ip;
1212         fw_ddb_entry->ip_addr[1] = *(ip + 1);
1213         fw_ddb_entry->ip_addr[2] = *(ip + 2);
1214         fw_ddb_entry->ip_addr[3] = *(ip + 3);
1215
1216         ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma);
1217
1218 exit_send_tgts:
1219         dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1220                           fw_ddb_entry, fw_ddb_entry_dma);
1221 exit_send_tgts_no_free:
1222         return ret_val;
1223 }
1224
1225 int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
1226                       uint32_t offset, uint32_t length, uint32_t options)
1227 {
1228         uint32_t mbox_cmd[MBOX_REG_COUNT];
1229         uint32_t mbox_sts[MBOX_REG_COUNT];
1230         int status = QLA_SUCCESS;
1231
1232         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1233         memset(&mbox_sts, 0, sizeof(mbox_sts));
1234
1235         mbox_cmd[0] = MBOX_CMD_WRITE_FLASH;
1236         mbox_cmd[1] = LSDW(dma_addr);
1237         mbox_cmd[2] = MSDW(dma_addr);
1238         mbox_cmd[3] = offset;
1239         mbox_cmd[4] = length;
1240         mbox_cmd[5] = options;
1241
1242         status = qla4xxx_mailbox_command(ha, 6, 2, &mbox_cmd[0], &mbox_sts[0]);
1243         if (status != QLA_SUCCESS) {
1244                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_WRITE_FLASH "
1245                                   "failed w/ status %04X, mbx1 %04X\n",
1246                                   __func__, mbox_sts[0], mbox_sts[1]));
1247         }
1248         return status;
1249 }
1250
1251 int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha,
1252                                    uint16_t fw_ddb_index,
1253                                    uint16_t connection_id,
1254                                    uint16_t option)
1255 {
1256         uint32_t mbox_cmd[MBOX_REG_COUNT];
1257         uint32_t mbox_sts[MBOX_REG_COUNT];
1258         int status = QLA_SUCCESS;
1259
1260         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1261         memset(&mbox_sts, 0, sizeof(mbox_sts));
1262
1263         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
1264         mbox_cmd[1] = fw_ddb_index;
1265         mbox_cmd[2] = connection_id;
1266         mbox_cmd[3] = option;
1267
1268         status = qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]);
1269         if (status != QLA_SUCCESS) {
1270                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_CONN_CLOSE "
1271                                   "option %04x failed w/ status %04X %04X\n",
1272                                   __func__, option, mbox_sts[0], mbox_sts[1]));
1273         }
1274         return status;
1275 }
1276
1277 int qla4xxx_disable_acb(struct scsi_qla_host *ha)
1278 {
1279         uint32_t mbox_cmd[MBOX_REG_COUNT];
1280         uint32_t mbox_sts[MBOX_REG_COUNT];
1281         int status = QLA_SUCCESS;
1282
1283         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1284         memset(&mbox_sts, 0, sizeof(mbox_sts));
1285
1286         mbox_cmd[0] = MBOX_CMD_DISABLE_ACB;
1287
1288         status = qla4xxx_mailbox_command(ha, 8, 5, &mbox_cmd[0], &mbox_sts[0]);
1289         if (status != QLA_SUCCESS) {
1290                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_DISABLE_ACB "
1291                                   "failed w/ status %04X %04X %04X", __func__,
1292                                   mbox_sts[0], mbox_sts[1], mbox_sts[2]));
1293         }
1294         return status;
1295 }
1296
1297 int qla4xxx_get_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
1298                     uint32_t *mbox_sts, dma_addr_t acb_dma)
1299 {
1300         int status = QLA_SUCCESS;
1301
1302         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1303         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1304         mbox_cmd[0] = MBOX_CMD_GET_ACB;
1305         mbox_cmd[1] = 0; /* Primary ACB */
1306         mbox_cmd[2] = LSDW(acb_dma);
1307         mbox_cmd[3] = MSDW(acb_dma);
1308         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
1309
1310         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1311         if (status != QLA_SUCCESS) {
1312                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_GET_ACB "
1313                                   "failed w/ status %04X\n", __func__,
1314                                   mbox_sts[0]));
1315         }
1316         return status;
1317 }
1318
1319 int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
1320                     uint32_t *mbox_sts, dma_addr_t acb_dma)
1321 {
1322         int status = QLA_SUCCESS;
1323
1324         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1325         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1326         mbox_cmd[0] = MBOX_CMD_SET_ACB;
1327         mbox_cmd[1] = 0; /* Primary ACB */
1328         mbox_cmd[2] = LSDW(acb_dma);
1329         mbox_cmd[3] = MSDW(acb_dma);
1330         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
1331
1332         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1333         if (status != QLA_SUCCESS) {
1334                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: MBOX_CMD_SET_ACB "
1335                                   "failed w/ status %04X\n", __func__,
1336                                   mbox_sts[0]));
1337         }
1338         return status;
1339 }