Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[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_qla40XX(ha)) {
45                 if (test_bit(AF_HA_REMOVAL, &ha->flags)) {
46                         DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
47                                           "prematurely completing mbx cmd as "
48                                           "adapter removal detected\n",
49                                           ha->host_no, __func__));
50                         return status;
51                 }
52         }
53
54         if (is_qla8022(ha)) {
55                 if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
56                         DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
57                             "prematurely completing mbx cmd as firmware "
58                             "recovery detected\n", ha->host_no, __func__));
59                         return status;
60                 }
61                 /* Do not send any mbx cmd if h/w is in failed state*/
62                 qla4_8xxx_idc_lock(ha);
63                 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
64                 qla4_8xxx_idc_unlock(ha);
65                 if (dev_state == QLA82XX_DEV_FAILED) {
66                         ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: H/W is in "
67                             "failed state, do not send any mailbox commands\n",
68                             ha->host_no, __func__);
69                         return status;
70                 }
71         }
72
73         if ((is_aer_supported(ha)) &&
74             (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))) {
75                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Perm failure on EEH, "
76                     "timeout MBX Exiting.\n", ha->host_no, __func__));
77                 return status;
78         }
79
80         /* Mailbox code active */
81         wait_count = MBOX_TOV * 100;
82
83         while (wait_count--) {
84                 mutex_lock(&ha->mbox_sem);
85                 if (!test_bit(AF_MBOX_COMMAND, &ha->flags)) {
86                         set_bit(AF_MBOX_COMMAND, &ha->flags);
87                         mutex_unlock(&ha->mbox_sem);
88                         break;
89                 }
90                 mutex_unlock(&ha->mbox_sem);
91                 if (!wait_count) {
92                         DEBUG2(printk("scsi%ld: %s: mbox_sem failed\n",
93                                 ha->host_no, __func__));
94                         return status;
95                 }
96                 msleep(10);
97         }
98
99         spin_lock_irqsave(&ha->hardware_lock, flags);
100
101         ha->mbox_status_count = outCount;
102         for (i = 0; i < outCount; i++)
103                 ha->mbox_status[i] = 0;
104
105         if (is_qla8022(ha)) {
106                 /* Load all mailbox registers, except mailbox 0. */
107                 DEBUG5(
108                     printk("scsi%ld: %s: Cmd ", ha->host_no, __func__);
109                     for (i = 0; i < inCount; i++)
110                         printk("mb%d=%04x ", i, mbx_cmd[i]);
111                     printk("\n"));
112
113                 for (i = 1; i < inCount; i++)
114                         writel(mbx_cmd[i], &ha->qla4_8xxx_reg->mailbox_in[i]);
115                 writel(mbx_cmd[0], &ha->qla4_8xxx_reg->mailbox_in[0]);
116                 readl(&ha->qla4_8xxx_reg->mailbox_in[0]);
117                 writel(HINT_MBX_INT_PENDING, &ha->qla4_8xxx_reg->hint);
118         } else {
119                 /* Load all mailbox registers, except mailbox 0. */
120                 for (i = 1; i < inCount; i++)
121                         writel(mbx_cmd[i], &ha->reg->mailbox[i]);
122
123                 /* Wakeup firmware  */
124                 writel(mbx_cmd[0], &ha->reg->mailbox[0]);
125                 readl(&ha->reg->mailbox[0]);
126                 writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
127                 readl(&ha->reg->ctrl_status);
128         }
129
130         spin_unlock_irqrestore(&ha->hardware_lock, flags);
131
132         /* Wait for completion */
133
134         /*
135          * If we don't want status, don't wait for the mailbox command to
136          * complete.  For example, MBOX_CMD_RESET_FW doesn't return status,
137          * you must poll the inbound Interrupt Mask for completion.
138          */
139         if (outCount == 0) {
140                 status = QLA_SUCCESS;
141                 goto mbox_exit;
142         }
143
144         /*
145          * Wait for completion: Poll or completion queue
146          */
147         if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
148             test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
149             test_bit(AF_ONLINE, &ha->flags) &&
150             !test_bit(AF_HA_REMOVAL, &ha->flags)) {
151                 /* Do not poll for completion. Use completion queue */
152                 set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
153                 wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ);
154                 clear_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
155         } else {
156                 /* Poll for command to complete */
157                 wait_count = jiffies + MBOX_TOV * HZ;
158                 while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) {
159                         if (time_after_eq(jiffies, wait_count))
160                                 break;
161
162                         /*
163                          * Service the interrupt.
164                          * The ISR will save the mailbox status registers
165                          * to a temporary storage location in the adapter
166                          * structure.
167                          */
168
169                         spin_lock_irqsave(&ha->hardware_lock, flags);
170                         if (is_qla8022(ha)) {
171                                 intr_status =
172                                     readl(&ha->qla4_8xxx_reg->host_int);
173                                 if (intr_status & ISRX_82XX_RISC_INT) {
174                                         ha->mbox_status_count = outCount;
175                                         intr_status =
176                                          readl(&ha->qla4_8xxx_reg->host_status);
177                                         ha->isp_ops->interrupt_service_routine(
178                                             ha, intr_status);
179                                         if (test_bit(AF_INTERRUPTS_ON,
180                                             &ha->flags) &&
181                                             test_bit(AF_INTx_ENABLED,
182                                             &ha->flags))
183                                                 qla4_8xxx_wr_32(ha,
184                                                 ha->nx_legacy_intr.tgt_mask_reg,
185                                                 0xfbff);
186                                 }
187                         } else {
188                                 intr_status = readl(&ha->reg->ctrl_status);
189                                 if (intr_status & INTR_PENDING) {
190                                         /*
191                                          * Service the interrupt.
192                                          * The ISR will save the mailbox status
193                                          * registers to a temporary storage
194                                          * location in the adapter structure.
195                                          */
196                                         ha->mbox_status_count = outCount;
197                                         ha->isp_ops->interrupt_service_routine(
198                                             ha, intr_status);
199                                 }
200                         }
201                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
202                         msleep(10);
203                 }
204         }
205
206         /* Check for mailbox timeout. */
207         if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
208                 if (is_qla8022(ha) &&
209                     test_bit(AF_FW_RECOVERY, &ha->flags)) {
210                         DEBUG2(ql4_printk(KERN_INFO, ha,
211                             "scsi%ld: %s: prematurely completing mbx cmd as "
212                             "firmware recovery detected\n",
213                             ha->host_no, __func__));
214                         goto mbox_exit;
215                 }
216                 DEBUG2(printk("scsi%ld: Mailbox Cmd 0x%08X timed out ...,"
217                               " Scheduling Adapter Reset\n", ha->host_no,
218                               mbx_cmd[0]));
219                 ha->mailbox_timeout_count++;
220                 mbx_sts[0] = (-1);
221                 set_bit(DPC_RESET_HA, &ha->dpc_flags);
222                 goto mbox_exit;
223         }
224
225         /*
226          * Copy the mailbox out registers to the caller's mailbox in/out
227          * structure.
228          */
229         spin_lock_irqsave(&ha->hardware_lock, flags);
230         for (i = 0; i < outCount; i++)
231                 mbx_sts[i] = ha->mbox_status[i];
232
233         /* Set return status and error flags (if applicable). */
234         switch (ha->mbox_status[0]) {
235         case MBOX_STS_COMMAND_COMPLETE:
236                 status = QLA_SUCCESS;
237                 break;
238
239         case MBOX_STS_INTERMEDIATE_COMPLETION:
240                 status = QLA_SUCCESS;
241                 break;
242
243         case MBOX_STS_BUSY:
244                 DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
245                                ha->host_no, __func__, mbx_cmd[0]));
246                 ha->mailbox_timeout_count++;
247                 break;
248
249         default:
250                 DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, "
251                               "sts = %08X ****\n", ha->host_no, __func__,
252                               mbx_cmd[0], mbx_sts[0]));
253                 break;
254         }
255         spin_unlock_irqrestore(&ha->hardware_lock, flags);
256
257 mbox_exit:
258         mutex_lock(&ha->mbox_sem);
259         clear_bit(AF_MBOX_COMMAND, &ha->flags);
260         mutex_unlock(&ha->mbox_sem);
261         clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
262
263         return status;
264 }
265
266 void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
267 {
268         set_bit(AF_FW_RECOVERY, &ha->flags);
269         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: set FW RECOVERY!\n",
270             ha->host_no, __func__);
271
272         if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
273                 if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) {
274                         complete(&ha->mbx_intr_comp);
275                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
276                             "recovery, doing premature completion of "
277                             "mbx cmd\n", ha->host_no, __func__);
278
279                 } else {
280                         set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
281                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
282                             "recovery, doing premature completion of "
283                             "polling mbx cmd\n", ha->host_no, __func__);
284                 }
285         }
286 }
287
288 static uint8_t
289 qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
290                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
291 {
292         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
293         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
294
295         if (is_qla8022(ha))
296                 qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, 0);
297
298         mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
299         mbox_cmd[1] = 0;
300         mbox_cmd[2] = LSDW(init_fw_cb_dma);
301         mbox_cmd[3] = MSDW(init_fw_cb_dma);
302         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
303         mbox_cmd[5] = (IFCB_VER_MAX << 8) | IFCB_VER_MIN;
304
305         if (qla4xxx_mailbox_command(ha, 6, 6, mbox_cmd, mbox_sts) !=
306             QLA_SUCCESS) {
307                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
308                               "MBOX_CMD_INITIALIZE_FIRMWARE"
309                               " failed w/ status %04X\n",
310                               ha->host_no, __func__, mbox_sts[0]));
311                 return QLA_ERROR;
312         }
313         return QLA_SUCCESS;
314 }
315
316 uint8_t
317 qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
318                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
319 {
320         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
321         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
322         mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
323         mbox_cmd[2] = LSDW(init_fw_cb_dma);
324         mbox_cmd[3] = MSDW(init_fw_cb_dma);
325         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
326
327         if (qla4xxx_mailbox_command(ha, 5, 5, mbox_cmd, mbox_sts) !=
328             QLA_SUCCESS) {
329                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
330                               "MBOX_CMD_GET_INIT_FW_CTRL_BLOCK"
331                               " failed w/ status %04X\n",
332                               ha->host_no, __func__, mbox_sts[0]));
333                 return QLA_ERROR;
334         }
335         return QLA_SUCCESS;
336 }
337
338 static void
339 qla4xxx_update_local_ip(struct scsi_qla_host *ha,
340                         struct addr_ctrl_blk *init_fw_cb)
341 {
342         ha->ip_config.tcp_options = le16_to_cpu(init_fw_cb->ipv4_tcp_opts);
343         ha->ip_config.ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
344         ha->ip_config.ipv4_addr_state =
345                                 le16_to_cpu(init_fw_cb->ipv4_addr_state);
346         ha->ip_config.eth_mtu_size =
347                                 le16_to_cpu(init_fw_cb->eth_mtu_size);
348         ha->ip_config.ipv4_port = le16_to_cpu(init_fw_cb->ipv4_port);
349
350         if (ha->acb_version == ACB_SUPPORTED) {
351                 ha->ip_config.ipv6_options = le16_to_cpu(init_fw_cb->ipv6_opts);
352                 ha->ip_config.ipv6_addl_options =
353                                 le16_to_cpu(init_fw_cb->ipv6_addtl_opts);
354         }
355
356         /* Save IPv4 Address Info */
357         memcpy(ha->ip_config.ip_address, init_fw_cb->ipv4_addr,
358                min(sizeof(ha->ip_config.ip_address),
359                    sizeof(init_fw_cb->ipv4_addr)));
360         memcpy(ha->ip_config.subnet_mask, init_fw_cb->ipv4_subnet,
361                min(sizeof(ha->ip_config.subnet_mask),
362                    sizeof(init_fw_cb->ipv4_subnet)));
363         memcpy(ha->ip_config.gateway, init_fw_cb->ipv4_gw_addr,
364                min(sizeof(ha->ip_config.gateway),
365                    sizeof(init_fw_cb->ipv4_gw_addr)));
366
367         ha->ip_config.ipv4_vlan_tag = be16_to_cpu(init_fw_cb->ipv4_vlan_tag);
368
369         if (is_ipv6_enabled(ha)) {
370                 /* Save IPv6 Address */
371                 ha->ip_config.ipv6_link_local_state =
372                         le16_to_cpu(init_fw_cb->ipv6_lnk_lcl_addr_state);
373                 ha->ip_config.ipv6_addr0_state =
374                                 le16_to_cpu(init_fw_cb->ipv6_addr0_state);
375                 ha->ip_config.ipv6_addr1_state =
376                                 le16_to_cpu(init_fw_cb->ipv6_addr1_state);
377                 ha->ip_config.ipv6_default_router_state =
378                                 le16_to_cpu(init_fw_cb->ipv6_dflt_rtr_state);
379                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[0] = 0xFE;
380                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[1] = 0x80;
381
382                 memcpy(&ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[8],
383                        init_fw_cb->ipv6_if_id,
384                        min(sizeof(ha->ip_config.ipv6_link_local_addr)/2,
385                            sizeof(init_fw_cb->ipv6_if_id)));
386                 memcpy(&ha->ip_config.ipv6_addr0, init_fw_cb->ipv6_addr0,
387                        min(sizeof(ha->ip_config.ipv6_addr0),
388                            sizeof(init_fw_cb->ipv6_addr0)));
389                 memcpy(&ha->ip_config.ipv6_addr1, init_fw_cb->ipv6_addr1,
390                        min(sizeof(ha->ip_config.ipv6_addr1),
391                            sizeof(init_fw_cb->ipv6_addr1)));
392                 memcpy(&ha->ip_config.ipv6_default_router_addr,
393                        init_fw_cb->ipv6_dflt_rtr_addr,
394                        min(sizeof(ha->ip_config.ipv6_default_router_addr),
395                            sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
396                 ha->ip_config.ipv6_vlan_tag =
397                                 be16_to_cpu(init_fw_cb->ipv6_vlan_tag);
398                 ha->ip_config.ipv6_port = le16_to_cpu(init_fw_cb->ipv6_port);
399         }
400 }
401
402 uint8_t
403 qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
404                           uint32_t *mbox_cmd,
405                           uint32_t *mbox_sts,
406                           struct addr_ctrl_blk  *init_fw_cb,
407                           dma_addr_t init_fw_cb_dma)
408 {
409         if (qla4xxx_get_ifcb(ha, mbox_cmd, mbox_sts, init_fw_cb_dma)
410             != QLA_SUCCESS) {
411                 DEBUG2(printk(KERN_WARNING
412                               "scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
413                               ha->host_no, __func__));
414                 return QLA_ERROR;
415         }
416
417         DEBUG2(qla4xxx_dump_buffer(init_fw_cb, sizeof(struct addr_ctrl_blk)));
418
419         /* Save some info in adapter structure. */
420         ha->acb_version = init_fw_cb->acb_version;
421         ha->firmware_options = le16_to_cpu(init_fw_cb->fw_options);
422         ha->heartbeat_interval = init_fw_cb->hb_interval;
423         memcpy(ha->name_string, init_fw_cb->iscsi_name,
424                 min(sizeof(ha->name_string),
425                 sizeof(init_fw_cb->iscsi_name)));
426         ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
427         /*memcpy(ha->alias, init_fw_cb->Alias,
428                min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
429
430         qla4xxx_update_local_ip(ha, init_fw_cb);
431
432         return QLA_SUCCESS;
433 }
434
435 /**
436  * qla4xxx_initialize_fw_cb - initializes firmware control block.
437  * @ha: Pointer to host adapter structure.
438  **/
439 int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
440 {
441         struct addr_ctrl_blk *init_fw_cb;
442         dma_addr_t init_fw_cb_dma;
443         uint32_t mbox_cmd[MBOX_REG_COUNT];
444         uint32_t mbox_sts[MBOX_REG_COUNT];
445         int status = QLA_ERROR;
446
447         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
448                                         sizeof(struct addr_ctrl_blk),
449                                         &init_fw_cb_dma, GFP_KERNEL);
450         if (init_fw_cb == NULL) {
451                 DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
452                               ha->host_no, __func__));
453                 goto exit_init_fw_cb_no_free;
454         }
455         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
456
457         /* Get Initialize Firmware Control Block. */
458         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
459         memset(&mbox_sts, 0, sizeof(mbox_sts));
460
461         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
462             QLA_SUCCESS) {
463                 dma_free_coherent(&ha->pdev->dev,
464                                   sizeof(struct addr_ctrl_blk),
465                                   init_fw_cb, init_fw_cb_dma);
466                 goto exit_init_fw_cb;
467         }
468
469         /* Initialize request and response queues. */
470         qla4xxx_init_rings(ha);
471
472         /* Fill in the request and response queue information. */
473         init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
474         init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
475         init_fw_cb->rqq_len = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH);
476         init_fw_cb->compq_len = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH);
477         init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
478         init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
479         init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
480         init_fw_cb->compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma));
481         init_fw_cb->shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma));
482         init_fw_cb->shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma));
483
484         /* Set up required options. */
485         init_fw_cb->fw_options |=
486                 __constant_cpu_to_le16(FWOPT_SESSION_MODE |
487                                        FWOPT_INITIATOR_MODE);
488
489         if (is_qla8022(ha))
490                 init_fw_cb->fw_options |=
491                     __constant_cpu_to_le16(FWOPT_ENABLE_CRBDB);
492
493         init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
494
495         init_fw_cb->add_fw_options = 0;
496         init_fw_cb->add_fw_options |=
497                         __constant_cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT);
498         init_fw_cb->add_fw_options |=
499                         __constant_cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE);
500
501         if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
502                 != QLA_SUCCESS) {
503                 DEBUG2(printk(KERN_WARNING
504                               "scsi%ld: %s: Failed to set init_fw_ctrl_blk\n",
505                               ha->host_no, __func__));
506                 goto exit_init_fw_cb;
507         }
508
509         if (qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0],
510                 init_fw_cb, init_fw_cb_dma) != QLA_SUCCESS) {
511                 DEBUG2(printk("scsi%ld: %s: Failed to update local ifcb\n",
512                                 ha->host_no, __func__));
513                 goto exit_init_fw_cb;
514         }
515         status = QLA_SUCCESS;
516
517 exit_init_fw_cb:
518         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
519                                 init_fw_cb, init_fw_cb_dma);
520 exit_init_fw_cb_no_free:
521         return status;
522 }
523
524 /**
525  * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP
526  * @ha: Pointer to host adapter structure.
527  **/
528 int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
529 {
530         struct addr_ctrl_blk *init_fw_cb;
531         dma_addr_t init_fw_cb_dma;
532         uint32_t mbox_cmd[MBOX_REG_COUNT];
533         uint32_t mbox_sts[MBOX_REG_COUNT];
534
535         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
536                                         sizeof(struct addr_ctrl_blk),
537                                         &init_fw_cb_dma, GFP_KERNEL);
538         if (init_fw_cb == NULL) {
539                 printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
540                        __func__);
541                 return QLA_ERROR;
542         }
543
544         /* Get Initialize Firmware Control Block. */
545         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
546         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
547             QLA_SUCCESS) {
548                 DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
549                               ha->host_no, __func__));
550                 dma_free_coherent(&ha->pdev->dev,
551                                   sizeof(struct addr_ctrl_blk),
552                                   init_fw_cb, init_fw_cb_dma);
553                 return QLA_ERROR;
554         }
555
556         /* Save IP Address. */
557         qla4xxx_update_local_ip(ha, init_fw_cb);
558         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
559                                 init_fw_cb, init_fw_cb_dma);
560
561         return QLA_SUCCESS;
562 }
563
564 /**
565  * qla4xxx_get_firmware_state - gets firmware state of HBA
566  * @ha: Pointer to host adapter structure.
567  **/
568 int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
569 {
570         uint32_t mbox_cmd[MBOX_REG_COUNT];
571         uint32_t mbox_sts[MBOX_REG_COUNT];
572
573         /* Get firmware version */
574         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
575         memset(&mbox_sts, 0, sizeof(mbox_sts));
576
577         mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
578
579         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) !=
580             QLA_SUCCESS) {
581                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
582                               "status %04X\n", ha->host_no, __func__,
583                               mbox_sts[0]));
584                 return QLA_ERROR;
585         }
586         ha->firmware_state = mbox_sts[1];
587         ha->board_id = mbox_sts[2];
588         ha->addl_fw_state = mbox_sts[3];
589         DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
590                       ha->host_no, __func__, ha->firmware_state);)
591
592         return QLA_SUCCESS;
593 }
594
595 /**
596  * qla4xxx_get_firmware_status - retrieves firmware status
597  * @ha: Pointer to host adapter structure.
598  **/
599 int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
600 {
601         uint32_t mbox_cmd[MBOX_REG_COUNT];
602         uint32_t mbox_sts[MBOX_REG_COUNT];
603
604         /* Get firmware version */
605         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
606         memset(&mbox_sts, 0, sizeof(mbox_sts));
607
608         mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
609
610         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
611             QLA_SUCCESS) {
612                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
613                               "status %04X\n", ha->host_no, __func__,
614                               mbox_sts[0]));
615                 return QLA_ERROR;
616         }
617
618         ql4_printk(KERN_INFO, ha, "%ld firmare IOCBs available (%d).\n",
619             ha->host_no, mbox_sts[2]);
620
621         return QLA_SUCCESS;
622 }
623
624 /**
625  * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry
626  * @ha: Pointer to host adapter structure.
627  * @fw_ddb_index: Firmware's device database index
628  * @fw_ddb_entry: Pointer to firmware's device database entry structure
629  * @num_valid_ddb_entries: Pointer to number of valid ddb entries
630  * @next_ddb_index: Pointer to next valid device database index
631  * @fw_ddb_device_state: Pointer to device state
632  **/
633 int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
634                             uint16_t fw_ddb_index,
635                             struct dev_db_entry *fw_ddb_entry,
636                             dma_addr_t fw_ddb_entry_dma,
637                             uint32_t *num_valid_ddb_entries,
638                             uint32_t *next_ddb_index,
639                             uint32_t *fw_ddb_device_state,
640                             uint32_t *conn_err_detail,
641                             uint16_t *tcp_source_port_num,
642                             uint16_t *connection_id)
643 {
644         int status = QLA_ERROR;
645         uint16_t options;
646         uint32_t mbox_cmd[MBOX_REG_COUNT];
647         uint32_t mbox_sts[MBOX_REG_COUNT];
648
649         /* Make sure the device index is valid */
650         if (fw_ddb_index >= MAX_DDB_ENTRIES) {
651                 DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n",
652                               ha->host_no, __func__, fw_ddb_index));
653                 goto exit_get_fwddb;
654         }
655         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
656         memset(&mbox_sts, 0, sizeof(mbox_sts));
657
658         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
659         mbox_cmd[1] = (uint32_t) fw_ddb_index;
660         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
661         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
662         mbox_cmd[4] = sizeof(struct dev_db_entry);
663
664         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) ==
665             QLA_ERROR) {
666                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
667                               " with status 0x%04X\n", ha->host_no, __func__,
668                               mbox_sts[0]));
669                 goto exit_get_fwddb;
670         }
671         if (fw_ddb_index != mbox_sts[1]) {
672                 DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n",
673                               ha->host_no, __func__, fw_ddb_index,
674                               mbox_sts[1]));
675                 goto exit_get_fwddb;
676         }
677         if (fw_ddb_entry) {
678                 options = le16_to_cpu(fw_ddb_entry->options);
679                 if (options & DDB_OPT_IPV6_DEVICE) {
680                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
681                                 "Next %d State %04x ConnErr %08x %pI6 "
682                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
683                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
684                                 mbox_sts[4], mbox_sts[5],
685                                 fw_ddb_entry->ip_addr,
686                                 le16_to_cpu(fw_ddb_entry->port),
687                                 fw_ddb_entry->iscsi_name);
688                 } else {
689                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
690                                 "Next %d State %04x ConnErr %08x %pI4 "
691                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
692                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
693                                 mbox_sts[4], mbox_sts[5],
694                                 fw_ddb_entry->ip_addr,
695                                 le16_to_cpu(fw_ddb_entry->port),
696                                 fw_ddb_entry->iscsi_name);
697                 }
698         }
699         if (num_valid_ddb_entries)
700                 *num_valid_ddb_entries = mbox_sts[2];
701         if (next_ddb_index)
702                 *next_ddb_index = mbox_sts[3];
703         if (fw_ddb_device_state)
704                 *fw_ddb_device_state = mbox_sts[4];
705
706         /*
707          * RA: This mailbox has been changed to pass connection error and
708          * details.  Its true for ISP4010 as per Version E - Not sure when it
709          * was changed.  Get the time2wait from the fw_dd_entry field :
710          * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
711          * struct.
712          */
713         if (conn_err_detail)
714                 *conn_err_detail = mbox_sts[5];
715         if (tcp_source_port_num)
716                 *tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
717         if (connection_id)
718                 *connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
719         status = QLA_SUCCESS;
720
721 exit_get_fwddb:
722         return status;
723 }
724
725 int qla4xxx_conn_open(struct scsi_qla_host *ha, uint16_t fw_ddb_index)
726 {
727         uint32_t mbox_cmd[MBOX_REG_COUNT];
728         uint32_t mbox_sts[MBOX_REG_COUNT];
729         int status;
730
731         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
732         memset(&mbox_sts, 0, sizeof(mbox_sts));
733
734         mbox_cmd[0] = MBOX_CMD_CONN_OPEN;
735         mbox_cmd[1] = fw_ddb_index;
736
737         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
738                                          &mbox_sts[0]);
739         DEBUG2(ql4_printk(KERN_INFO, ha,
740                           "%s: status = %d mbx0 = 0x%x mbx1 = 0x%x\n",
741                           __func__, status, mbox_sts[0], mbox_sts[1]));
742         return status;
743 }
744
745 /**
746  * qla4xxx_set_fwddb_entry - sets a ddb entry.
747  * @ha: Pointer to host adapter structure.
748  * @fw_ddb_index: Firmware's device database index
749  * @fw_ddb_entry_dma: dma address of ddb entry
750  * @mbx_sts: mailbox 0 to be returned or NULL
751  *
752  * This routine initializes or updates the adapter's device database
753  * entry for the specified device.
754  **/
755 int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
756                           dma_addr_t fw_ddb_entry_dma, uint32_t *mbx_sts)
757 {
758         uint32_t mbox_cmd[MBOX_REG_COUNT];
759         uint32_t mbox_sts[MBOX_REG_COUNT];
760         int status;
761
762         /* Do not wait for completion. The firmware will send us an
763          * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
764          */
765         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
766         memset(&mbox_sts, 0, sizeof(mbox_sts));
767
768         mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
769         mbox_cmd[1] = (uint32_t) fw_ddb_index;
770         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
771         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
772         mbox_cmd[4] = sizeof(struct dev_db_entry);
773
774         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
775                                          &mbox_sts[0]);
776         if (mbx_sts)
777                 *mbx_sts = mbox_sts[0];
778         DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n",
779             ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);)
780
781         return status;
782 }
783
784 int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha,
785                                struct ddb_entry *ddb_entry, int options)
786 {
787         int status;
788         uint32_t mbox_cmd[MBOX_REG_COUNT];
789         uint32_t mbox_sts[MBOX_REG_COUNT];
790
791         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
792         memset(&mbox_sts, 0, sizeof(mbox_sts));
793
794         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
795         mbox_cmd[1] = ddb_entry->fw_ddb_index;
796         mbox_cmd[3] = options;
797
798         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
799                                          &mbox_sts[0]);
800         if (status != QLA_SUCCESS) {
801                 DEBUG2(ql4_printk(KERN_INFO, ha,
802                                   "%s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT "
803                                   "failed sts %04X %04X", __func__,
804                                   mbox_sts[0], mbox_sts[1]));
805         }
806
807         return status;
808 }
809
810 /**
811  * qla4xxx_get_crash_record - retrieves crash record.
812  * @ha: Pointer to host adapter structure.
813  *
814  * This routine retrieves a crash record from the QLA4010 after an 8002h aen.
815  **/
816 void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
817 {
818         uint32_t mbox_cmd[MBOX_REG_COUNT];
819         uint32_t mbox_sts[MBOX_REG_COUNT];
820         struct crash_record *crash_record = NULL;
821         dma_addr_t crash_record_dma = 0;
822         uint32_t crash_record_size = 0;
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_CRASH_RECORD;
829
830         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
831             QLA_SUCCESS) {
832                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
833                               ha->host_no, __func__));
834                 goto exit_get_crash_record;
835         }
836         crash_record_size = mbox_sts[4];
837         if (crash_record_size == 0) {
838                 DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
839                               ha->host_no, __func__));
840                 goto exit_get_crash_record;
841         }
842
843         /* Alloc Memory for Crash Record. */
844         crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
845                                           &crash_record_dma, GFP_KERNEL);
846         if (crash_record == NULL)
847                 goto exit_get_crash_record;
848
849         /* Get Crash Record. */
850         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
851         memset(&mbox_sts, 0, sizeof(mbox_cmd));
852
853         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
854         mbox_cmd[2] = LSDW(crash_record_dma);
855         mbox_cmd[3] = MSDW(crash_record_dma);
856         mbox_cmd[4] = crash_record_size;
857
858         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
859             QLA_SUCCESS)
860                 goto exit_get_crash_record;
861
862         /* Dump Crash Record. */
863
864 exit_get_crash_record:
865         if (crash_record)
866                 dma_free_coherent(&ha->pdev->dev, crash_record_size,
867                                   crash_record, crash_record_dma);
868 }
869
870 /**
871  * qla4xxx_get_conn_event_log - retrieves connection event log
872  * @ha: Pointer to host adapter structure.
873  **/
874 void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
875 {
876         uint32_t mbox_cmd[MBOX_REG_COUNT];
877         uint32_t mbox_sts[MBOX_REG_COUNT];
878         struct conn_event_log_entry *event_log = NULL;
879         dma_addr_t event_log_dma = 0;
880         uint32_t event_log_size = 0;
881         uint32_t num_valid_entries;
882         uint32_t      oldest_entry = 0;
883         uint32_t        max_event_log_entries;
884         uint8_t         i;
885
886         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
887         memset(&mbox_sts, 0, sizeof(mbox_cmd));
888
889         /* Get size of crash record. */
890         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
891
892         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
893             QLA_SUCCESS)
894                 goto exit_get_event_log;
895
896         event_log_size = mbox_sts[4];
897         if (event_log_size == 0)
898                 goto exit_get_event_log;
899
900         /* Alloc Memory for Crash Record. */
901         event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
902                                        &event_log_dma, GFP_KERNEL);
903         if (event_log == NULL)
904                 goto exit_get_event_log;
905
906         /* Get Crash Record. */
907         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
908         memset(&mbox_sts, 0, sizeof(mbox_cmd));
909
910         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
911         mbox_cmd[2] = LSDW(event_log_dma);
912         mbox_cmd[3] = MSDW(event_log_dma);
913
914         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
915             QLA_SUCCESS) {
916                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
917                               "log!\n", ha->host_no, __func__));
918                 goto exit_get_event_log;
919         }
920
921         /* Dump Event Log. */
922         num_valid_entries = mbox_sts[1];
923
924         max_event_log_entries = event_log_size /
925                 sizeof(struct conn_event_log_entry);
926
927         if (num_valid_entries > max_event_log_entries)
928                 oldest_entry = num_valid_entries % max_event_log_entries;
929
930         DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
931                       ha->host_no, num_valid_entries));
932
933         if (ql4xextended_error_logging == 3) {
934                 if (oldest_entry == 0) {
935                         /* Circular Buffer has not wrapped around */
936                         for (i=0; i < num_valid_entries; i++) {
937                                 qla4xxx_dump_buffer((uint8_t *)event_log+
938                                                     (i*sizeof(*event_log)),
939                                                     sizeof(*event_log));
940                         }
941                 }
942                 else {
943                         /* Circular Buffer has wrapped around -
944                          * display accordingly*/
945                         for (i=oldest_entry; i < max_event_log_entries; i++) {
946                                 qla4xxx_dump_buffer((uint8_t *)event_log+
947                                                     (i*sizeof(*event_log)),
948                                                     sizeof(*event_log));
949                         }
950                         for (i=0; i < oldest_entry; i++) {
951                                 qla4xxx_dump_buffer((uint8_t *)event_log+
952                                                     (i*sizeof(*event_log)),
953                                                     sizeof(*event_log));
954                         }
955                 }
956         }
957
958 exit_get_event_log:
959         if (event_log)
960                 dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
961                                   event_log_dma);
962 }
963
964 /**
965  * qla4xxx_abort_task - issues Abort Task
966  * @ha: Pointer to host adapter structure.
967  * @srb: Pointer to srb entry
968  *
969  * This routine performs a LUN RESET on the specified target/lun.
970  * The caller must ensure that the ddb_entry and lun_entry pointers
971  * are valid before calling this routine.
972  **/
973 int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb)
974 {
975         uint32_t mbox_cmd[MBOX_REG_COUNT];
976         uint32_t mbox_sts[MBOX_REG_COUNT];
977         struct scsi_cmnd *cmd = srb->cmd;
978         int status = QLA_SUCCESS;
979         unsigned long flags = 0;
980         uint32_t index;
981
982         /*
983          * Send abort task command to ISP, so that the ISP will return
984          * request with ABORT status
985          */
986         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
987         memset(&mbox_sts, 0, sizeof(mbox_sts));
988
989         spin_lock_irqsave(&ha->hardware_lock, flags);
990         index = (unsigned long)(unsigned char *)cmd->host_scribble;
991         spin_unlock_irqrestore(&ha->hardware_lock, flags);
992
993         /* Firmware already posted completion on response queue */
994         if (index == MAX_SRBS)
995                 return status;
996
997         mbox_cmd[0] = MBOX_CMD_ABORT_TASK;
998         mbox_cmd[1] = srb->ddb->fw_ddb_index;
999         mbox_cmd[2] = index;
1000         /* Immediate Command Enable */
1001         mbox_cmd[5] = 0x01;
1002
1003         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
1004             &mbox_sts[0]);
1005         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
1006                 status = QLA_ERROR;
1007
1008                 DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%d: abort task FAILED: "
1009                     "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
1010                     ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
1011                     mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
1012         }
1013
1014         return status;
1015 }
1016
1017 /**
1018  * qla4xxx_reset_lun - issues LUN Reset
1019  * @ha: Pointer to host adapter structure.
1020  * @ddb_entry: Pointer to device database entry
1021  * @lun: lun number
1022  *
1023  * This routine performs a LUN RESET on the specified target/lun.
1024  * The caller must ensure that the ddb_entry and lun_entry pointers
1025  * are valid before calling this routine.
1026  **/
1027 int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
1028                       int lun)
1029 {
1030         uint32_t mbox_cmd[MBOX_REG_COUNT];
1031         uint32_t mbox_sts[MBOX_REG_COUNT];
1032         int status = QLA_SUCCESS;
1033
1034         DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no,
1035                       ddb_entry->fw_ddb_index, lun));
1036
1037         /*
1038          * Send lun reset command to ISP, so that the ISP will return all
1039          * outstanding requests with RESET status
1040          */
1041         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1042         memset(&mbox_sts, 0, sizeof(mbox_sts));
1043
1044         mbox_cmd[0] = MBOX_CMD_LUN_RESET;
1045         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1046         mbox_cmd[2] = lun << 8;
1047         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1048
1049         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]);
1050         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1051             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1052                 status = QLA_ERROR;
1053
1054         return status;
1055 }
1056
1057 /**
1058  * qla4xxx_reset_target - issues target Reset
1059  * @ha: Pointer to host adapter structure.
1060  * @db_entry: Pointer to device database entry
1061  * @un_entry: Pointer to lun entry structure
1062  *
1063  * This routine performs a TARGET RESET on the specified target.
1064  * The caller must ensure that the ddb_entry pointers
1065  * are valid before calling this routine.
1066  **/
1067 int qla4xxx_reset_target(struct scsi_qla_host *ha,
1068                          struct ddb_entry *ddb_entry)
1069 {
1070         uint32_t mbox_cmd[MBOX_REG_COUNT];
1071         uint32_t mbox_sts[MBOX_REG_COUNT];
1072         int status = QLA_SUCCESS;
1073
1074         DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
1075                       ddb_entry->fw_ddb_index));
1076
1077         /*
1078          * Send target reset command to ISP, so that the ISP will return all
1079          * outstanding requests with RESET status
1080          */
1081         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1082         memset(&mbox_sts, 0, sizeof(mbox_sts));
1083
1084         mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
1085         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1086         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1087
1088         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1089                                 &mbox_sts[0]);
1090         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1091             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1092                 status = QLA_ERROR;
1093
1094         return status;
1095 }
1096
1097 int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
1098                       uint32_t offset, uint32_t len)
1099 {
1100         uint32_t mbox_cmd[MBOX_REG_COUNT];
1101         uint32_t mbox_sts[MBOX_REG_COUNT];
1102
1103         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1104         memset(&mbox_sts, 0, sizeof(mbox_sts));
1105
1106         mbox_cmd[0] = MBOX_CMD_READ_FLASH;
1107         mbox_cmd[1] = LSDW(dma_addr);
1108         mbox_cmd[2] = MSDW(dma_addr);
1109         mbox_cmd[3] = offset;
1110         mbox_cmd[4] = len;
1111
1112         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) !=
1113             QLA_SUCCESS) {
1114                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
1115                     "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
1116                     __func__, mbox_sts[0], mbox_sts[1], offset, len));
1117                 return QLA_ERROR;
1118         }
1119         return QLA_SUCCESS;
1120 }
1121
1122 /**
1123  * qla4xxx_about_firmware - gets FW, iscsi draft and boot loader version
1124  * @ha: Pointer to host adapter structure.
1125  *
1126  * Retrieves the FW version, iSCSI draft version & bootloader version of HBA.
1127  * Mailboxes 2 & 3 may hold an address for data. Make sure that we write 0 to
1128  * those mailboxes, if unused.
1129  **/
1130 int qla4xxx_about_firmware(struct scsi_qla_host *ha)
1131 {
1132         struct about_fw_info *about_fw = NULL;
1133         dma_addr_t about_fw_dma;
1134         uint32_t mbox_cmd[MBOX_REG_COUNT];
1135         uint32_t mbox_sts[MBOX_REG_COUNT];
1136         int status = QLA_ERROR;
1137
1138         about_fw = dma_alloc_coherent(&ha->pdev->dev,
1139                                       sizeof(struct about_fw_info),
1140                                       &about_fw_dma, GFP_KERNEL);
1141         if (!about_fw) {
1142                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory "
1143                                   "for about_fw\n", __func__));
1144                 return status;
1145         }
1146
1147         memset(about_fw, 0, sizeof(struct about_fw_info));
1148         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1149         memset(&mbox_sts, 0, sizeof(mbox_sts));
1150
1151         mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
1152         mbox_cmd[2] = LSDW(about_fw_dma);
1153         mbox_cmd[3] = MSDW(about_fw_dma);
1154         mbox_cmd[4] = sizeof(struct about_fw_info);
1155
1156         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1157                                          &mbox_cmd[0], &mbox_sts[0]);
1158         if (status != QLA_SUCCESS) {
1159                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_ABOUT_FW "
1160                                   "failed w/ status %04X\n", __func__,
1161                                   mbox_sts[0]));
1162                 goto exit_about_fw;
1163         }
1164
1165         /* Save version information. */
1166         ha->firmware_version[0] = le16_to_cpu(about_fw->fw_major);
1167         ha->firmware_version[1] = le16_to_cpu(about_fw->fw_minor);
1168         ha->patch_number = le16_to_cpu(about_fw->fw_patch);
1169         ha->build_number = le16_to_cpu(about_fw->fw_build);
1170         ha->iscsi_major = le16_to_cpu(about_fw->iscsi_major);
1171         ha->iscsi_minor = le16_to_cpu(about_fw->iscsi_minor);
1172         ha->bootload_major = le16_to_cpu(about_fw->bootload_major);
1173         ha->bootload_minor = le16_to_cpu(about_fw->bootload_minor);
1174         ha->bootload_patch = le16_to_cpu(about_fw->bootload_patch);
1175         ha->bootload_build = le16_to_cpu(about_fw->bootload_build);
1176         status = QLA_SUCCESS;
1177
1178 exit_about_fw:
1179         dma_free_coherent(&ha->pdev->dev, sizeof(struct about_fw_info),
1180                           about_fw, about_fw_dma);
1181         return status;
1182 }
1183
1184 static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
1185                                    dma_addr_t dma_addr)
1186 {
1187         uint32_t mbox_cmd[MBOX_REG_COUNT];
1188         uint32_t mbox_sts[MBOX_REG_COUNT];
1189
1190         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1191         memset(&mbox_sts, 0, sizeof(mbox_sts));
1192
1193         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
1194         mbox_cmd[1] = options;
1195         mbox_cmd[2] = LSDW(dma_addr);
1196         mbox_cmd[3] = MSDW(dma_addr);
1197
1198         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) !=
1199             QLA_SUCCESS) {
1200                 DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1201                      ha->host_no, __func__, mbox_sts[0]));
1202                 return QLA_ERROR;
1203         }
1204         return QLA_SUCCESS;
1205 }
1206
1207 int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index,
1208                           uint32_t *mbx_sts)
1209 {
1210         int status;
1211         uint32_t mbox_cmd[MBOX_REG_COUNT];
1212         uint32_t mbox_sts[MBOX_REG_COUNT];
1213
1214         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1215         memset(&mbox_sts, 0, sizeof(mbox_sts));
1216
1217         mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
1218         mbox_cmd[1] = ddb_index;
1219
1220         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1221                                          &mbox_sts[0]);
1222         if (status != QLA_SUCCESS) {
1223                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1224                                    __func__, mbox_sts[0]));
1225         }
1226
1227         *mbx_sts = mbox_sts[0];
1228         return status;
1229 }
1230
1231 int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index)
1232 {
1233         int status;
1234         uint32_t mbox_cmd[MBOX_REG_COUNT];
1235         uint32_t mbox_sts[MBOX_REG_COUNT];
1236
1237         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1238         memset(&mbox_sts, 0, sizeof(mbox_sts));
1239
1240         mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY;
1241         mbox_cmd[1] = ddb_index;
1242
1243         status = qla4xxx_mailbox_command(ha, 2, 1, &mbox_cmd[0],
1244                                          &mbox_sts[0]);
1245         if (status != QLA_SUCCESS) {
1246                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1247                                    __func__, mbox_sts[0]));
1248         }
1249
1250         return status;
1251 }
1252
1253 int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
1254                       uint32_t offset, uint32_t length, uint32_t options)
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_WRITE_FLASH;
1264         mbox_cmd[1] = LSDW(dma_addr);
1265         mbox_cmd[2] = MSDW(dma_addr);
1266         mbox_cmd[3] = offset;
1267         mbox_cmd[4] = length;
1268         mbox_cmd[5] = options;
1269
1270         status = qla4xxx_mailbox_command(ha, 6, 2, &mbox_cmd[0], &mbox_sts[0]);
1271         if (status != QLA_SUCCESS) {
1272                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_WRITE_FLASH "
1273                                   "failed w/ status %04X, mbx1 %04X\n",
1274                                   __func__, mbox_sts[0], mbox_sts[1]));
1275         }
1276         return status;
1277 }
1278
1279 int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
1280                             struct dev_db_entry *fw_ddb_entry,
1281                             dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
1282 {
1283         uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
1284         uint32_t dev_db_end_offset;
1285         int status = QLA_ERROR;
1286
1287         memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1288
1289         dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
1290         dev_db_end_offset = FLASH_OFFSET_DB_END;
1291
1292         if (dev_db_start_offset > dev_db_end_offset) {
1293                 DEBUG2(ql4_printk(KERN_ERR, ha,
1294                                   "%s:Invalid DDB index %d", __func__,
1295                                   ddb_index));
1296                 goto exit_bootdb_failed;
1297         }
1298
1299         if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
1300                               sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
1301                 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
1302                            "failed\n", ha->host_no, __func__);
1303                 goto exit_bootdb_failed;
1304         }
1305
1306         if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
1307                 status = QLA_SUCCESS;
1308
1309 exit_bootdb_failed:
1310         return status;
1311 }
1312
1313 int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
1314                      uint16_t idx)
1315 {
1316         int ret = 0;
1317         int rval = QLA_ERROR;
1318         uint32_t offset = 0, chap_size;
1319         struct ql4_chap_table *chap_table;
1320         dma_addr_t chap_dma;
1321
1322         chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1323         if (chap_table == NULL) {
1324                 ret = -ENOMEM;
1325                 goto exit_get_chap;
1326         }
1327
1328         chap_size = sizeof(struct ql4_chap_table);
1329         memset(chap_table, 0, chap_size);
1330
1331         if (is_qla40XX(ha))
1332                 offset = FLASH_CHAP_OFFSET | (idx * chap_size);
1333         else {
1334                 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
1335                 /* flt_chap_size is CHAP table size for both ports
1336                  * so divide it by 2 to calculate the offset for second port
1337                  */
1338                 if (ha->port_num == 1)
1339                         offset += (ha->hw.flt_chap_size / 2);
1340                 offset += (idx * chap_size);
1341         }
1342
1343         rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
1344         if (rval != QLA_SUCCESS) {
1345                 ret = -EINVAL;
1346                 goto exit_get_chap;
1347         }
1348
1349         DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
1350                 __le16_to_cpu(chap_table->cookie)));
1351
1352         if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
1353                 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
1354                 goto exit_get_chap;
1355         }
1356
1357         strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
1358         strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
1359         chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
1360
1361 exit_get_chap:
1362         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1363         return ret;
1364 }
1365
1366 static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username,
1367                             char *password, uint16_t idx, int bidi)
1368 {
1369         int ret = 0;
1370         int rval = QLA_ERROR;
1371         uint32_t offset = 0;
1372         struct ql4_chap_table *chap_table;
1373         dma_addr_t chap_dma;
1374
1375         chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1376         if (chap_table == NULL) {
1377                 ret =  -ENOMEM;
1378                 goto exit_set_chap;
1379         }
1380
1381         memset(chap_table, 0, sizeof(struct ql4_chap_table));
1382         if (bidi)
1383                 chap_table->flags |= BIT_6; /* peer */
1384         else
1385                 chap_table->flags |= BIT_7; /* local */
1386         chap_table->secret_len = strlen(password);
1387         strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN);
1388         strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN);
1389         chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
1390         offset = FLASH_CHAP_OFFSET | (idx * sizeof(struct ql4_chap_table));
1391         rval = qla4xxx_set_flash(ha, chap_dma, offset,
1392                                 sizeof(struct ql4_chap_table),
1393                                 FLASH_OPT_RMW_COMMIT);
1394
1395         if (rval == QLA_SUCCESS && ha->chap_list) {
1396                 /* Update ha chap_list cache */
1397                 memcpy((struct ql4_chap_table *)ha->chap_list + idx,
1398                        chap_table, sizeof(struct ql4_chap_table));
1399         }
1400         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1401         if (rval != QLA_SUCCESS)
1402                 ret =  -EINVAL;
1403
1404 exit_set_chap:
1405         return ret;
1406 }
1407
1408 /**
1409  * qla4xxx_get_chap_index - Get chap index given username and secret
1410  * @ha: pointer to adapter structure
1411  * @username: CHAP username to be searched
1412  * @password: CHAP password to be searched
1413  * @bidi: Is this a BIDI CHAP
1414  * @chap_index: CHAP index to be returned
1415  *
1416  * Match the username and password in the chap_list, return the index if a
1417  * match is found. If a match is not found then add the entry in FLASH and
1418  * return the index at which entry is written in the FLASH.
1419  **/
1420 static int qla4xxx_get_chap_index(struct scsi_qla_host *ha, char *username,
1421                             char *password, int bidi, uint16_t *chap_index)
1422 {
1423         int i, rval;
1424         int free_index = -1;
1425         int found_index = 0;
1426         int max_chap_entries = 0;
1427         struct ql4_chap_table *chap_table;
1428
1429         if (is_qla8022(ha))
1430                 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1431                                                 sizeof(struct ql4_chap_table);
1432         else
1433                 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1434
1435         if (!ha->chap_list) {
1436                 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
1437                 return QLA_ERROR;
1438         }
1439
1440         mutex_lock(&ha->chap_sem);
1441         for (i = 0; i < max_chap_entries; i++) {
1442                 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
1443                 if (chap_table->cookie !=
1444                     __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
1445                         if (i > MAX_RESRV_CHAP_IDX && free_index == -1)
1446                                 free_index = i;
1447                         continue;
1448                 }
1449                 if (bidi) {
1450                         if (chap_table->flags & BIT_7)
1451                                 continue;
1452                 } else {
1453                         if (chap_table->flags & BIT_6)
1454                                 continue;
1455                 }
1456                 if (!strncmp(chap_table->secret, password,
1457                              MAX_CHAP_SECRET_LEN) &&
1458                     !strncmp(chap_table->name, username,
1459                              MAX_CHAP_NAME_LEN)) {
1460                         *chap_index = i;
1461                         found_index = 1;
1462                         break;
1463                 }
1464         }
1465
1466         /* If chap entry is not present and a free index is available then
1467          * write the entry in flash
1468          */
1469         if (!found_index && free_index != -1) {
1470                 rval = qla4xxx_set_chap(ha, username, password,
1471                                         free_index, bidi);
1472                 if (!rval) {
1473                         *chap_index = free_index;
1474                         found_index = 1;
1475                 }
1476         }
1477
1478         mutex_unlock(&ha->chap_sem);
1479
1480         if (found_index)
1481                 return QLA_SUCCESS;
1482         return QLA_ERROR;
1483 }
1484
1485 int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha,
1486                                    uint16_t fw_ddb_index,
1487                                    uint16_t connection_id,
1488                                    uint16_t option)
1489 {
1490         uint32_t mbox_cmd[MBOX_REG_COUNT];
1491         uint32_t mbox_sts[MBOX_REG_COUNT];
1492         int status = QLA_SUCCESS;
1493
1494         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1495         memset(&mbox_sts, 0, sizeof(mbox_sts));
1496
1497         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
1498         mbox_cmd[1] = fw_ddb_index;
1499         mbox_cmd[2] = connection_id;
1500         mbox_cmd[3] = option;
1501
1502         status = qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]);
1503         if (status != QLA_SUCCESS) {
1504                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_CONN_CLOSE "
1505                                   "option %04x failed w/ status %04X %04X\n",
1506                                   __func__, option, mbox_sts[0], mbox_sts[1]));
1507         }
1508         return status;
1509 }
1510
1511 int qla4xxx_disable_acb(struct scsi_qla_host *ha)
1512 {
1513         uint32_t mbox_cmd[MBOX_REG_COUNT];
1514         uint32_t mbox_sts[MBOX_REG_COUNT];
1515         int status = QLA_SUCCESS;
1516
1517         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1518         memset(&mbox_sts, 0, sizeof(mbox_sts));
1519
1520         mbox_cmd[0] = MBOX_CMD_DISABLE_ACB;
1521
1522         status = qla4xxx_mailbox_command(ha, 8, 5, &mbox_cmd[0], &mbox_sts[0]);
1523         if (status != QLA_SUCCESS) {
1524                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_DISABLE_ACB "
1525                                   "failed w/ status %04X %04X %04X", __func__,
1526                                   mbox_sts[0], mbox_sts[1], mbox_sts[2]));
1527         }
1528         return status;
1529 }
1530
1531 int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma,
1532                     uint32_t acb_type, uint32_t len)
1533 {
1534         uint32_t mbox_cmd[MBOX_REG_COUNT];
1535         uint32_t mbox_sts[MBOX_REG_COUNT];
1536         int status = QLA_SUCCESS;
1537
1538         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1539         memset(&mbox_sts, 0, sizeof(mbox_sts));
1540
1541         mbox_cmd[0] = MBOX_CMD_GET_ACB;
1542         mbox_cmd[1] = acb_type;
1543         mbox_cmd[2] = LSDW(acb_dma);
1544         mbox_cmd[3] = MSDW(acb_dma);
1545         mbox_cmd[4] = len;
1546
1547         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1548         if (status != QLA_SUCCESS) {
1549                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_GET_ACB "
1550                                   "failed w/ status %04X\n", __func__,
1551                                   mbox_sts[0]));
1552         }
1553         return status;
1554 }
1555
1556 int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
1557                     uint32_t *mbox_sts, dma_addr_t acb_dma)
1558 {
1559         int status = QLA_SUCCESS;
1560
1561         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1562         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1563         mbox_cmd[0] = MBOX_CMD_SET_ACB;
1564         mbox_cmd[1] = 0; /* Primary ACB */
1565         mbox_cmd[2] = LSDW(acb_dma);
1566         mbox_cmd[3] = MSDW(acb_dma);
1567         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
1568
1569         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1570         if (status != QLA_SUCCESS) {
1571                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: MBOX_CMD_SET_ACB "
1572                                   "failed w/ status %04X\n", __func__,
1573                                   mbox_sts[0]));
1574         }
1575         return status;
1576 }
1577
1578 int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
1579                                struct ddb_entry *ddb_entry,
1580                                struct iscsi_cls_conn *cls_conn,
1581                                uint32_t *mbx_sts)
1582 {
1583         struct dev_db_entry *fw_ddb_entry;
1584         struct iscsi_conn *conn;
1585         struct iscsi_session *sess;
1586         struct qla_conn *qla_conn;
1587         struct sockaddr *dst_addr;
1588         dma_addr_t fw_ddb_entry_dma;
1589         int status = QLA_SUCCESS;
1590         int rval = 0;
1591         struct sockaddr_in *addr;
1592         struct sockaddr_in6 *addr6;
1593         char *ip;
1594         uint16_t iscsi_opts = 0;
1595         uint32_t options = 0;
1596         uint16_t idx;
1597
1598         fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1599                                           &fw_ddb_entry_dma, GFP_KERNEL);
1600         if (!fw_ddb_entry) {
1601                 DEBUG2(ql4_printk(KERN_ERR, ha,
1602                                   "%s: Unable to allocate dma buffer.\n",
1603                                   __func__));
1604                 rval = -ENOMEM;
1605                 goto exit_set_param_no_free;
1606         }
1607
1608         conn = cls_conn->dd_data;
1609         qla_conn = conn->dd_data;
1610         sess = conn->session;
1611         dst_addr = &qla_conn->qla_ep->dst_addr;
1612
1613         if (dst_addr->sa_family == AF_INET6)
1614                 options |= IPV6_DEFAULT_DDB_ENTRY;
1615
1616         status = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
1617         if (status == QLA_ERROR) {
1618                 rval = -EINVAL;
1619                 goto exit_set_param;
1620         }
1621
1622         iscsi_opts = le16_to_cpu(fw_ddb_entry->iscsi_options);
1623         memset(fw_ddb_entry->iscsi_alias, 0, sizeof(fw_ddb_entry->iscsi_alias));
1624
1625         memset(fw_ddb_entry->iscsi_name, 0, sizeof(fw_ddb_entry->iscsi_name));
1626
1627         if (sess->targetname != NULL) {
1628                 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
1629                        min(strlen(sess->targetname),
1630                        sizeof(fw_ddb_entry->iscsi_name)));
1631         }
1632
1633         memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr));
1634         memset(fw_ddb_entry->tgt_addr, 0, sizeof(fw_ddb_entry->tgt_addr));
1635
1636         fw_ddb_entry->options =  DDB_OPT_TARGET | DDB_OPT_AUTO_SENDTGTS_DISABLE;
1637
1638         if (dst_addr->sa_family == AF_INET) {
1639                 addr = (struct sockaddr_in *)dst_addr;
1640                 ip = (char *)&addr->sin_addr;
1641                 memcpy(fw_ddb_entry->ip_addr, ip, IP_ADDR_LEN);
1642                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr->sin_port));
1643                 DEBUG2(ql4_printk(KERN_INFO, ha,
1644                                   "%s: Destination Address [%pI4]: index [%d]\n",
1645                                    __func__, fw_ddb_entry->ip_addr,
1646                                   ddb_entry->fw_ddb_index));
1647         } else if (dst_addr->sa_family == AF_INET6) {
1648                 addr6 = (struct sockaddr_in6 *)dst_addr;
1649                 ip = (char *)&addr6->sin6_addr;
1650                 memcpy(fw_ddb_entry->ip_addr, ip, IPv6_ADDR_LEN);
1651                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr6->sin6_port));
1652                 fw_ddb_entry->options |= DDB_OPT_IPV6_DEVICE;
1653                 DEBUG2(ql4_printk(KERN_INFO, ha,
1654                                   "%s: Destination Address [%pI6]: index [%d]\n",
1655                                    __func__, fw_ddb_entry->ip_addr,
1656                                   ddb_entry->fw_ddb_index));
1657         } else {
1658                 ql4_printk(KERN_ERR, ha,
1659                            "%s: Failed to get IP Address\n",
1660                            __func__);
1661                 rval = -EINVAL;
1662                 goto exit_set_param;
1663         }
1664
1665         /* CHAP */
1666         if (sess->username != NULL && sess->password != NULL) {
1667                 if (strlen(sess->username) && strlen(sess->password)) {
1668                         iscsi_opts |= BIT_7;
1669
1670                         rval = qla4xxx_get_chap_index(ha, sess->username,
1671                                                 sess->password,
1672                                                 LOCAL_CHAP, &idx);
1673                         if (rval)
1674                                 goto exit_set_param;
1675
1676                         fw_ddb_entry->chap_tbl_idx = cpu_to_le16(idx);
1677                 }
1678         }
1679
1680         if (sess->username_in != NULL && sess->password_in != NULL) {
1681                 /* Check if BIDI CHAP */
1682                 if (strlen(sess->username_in) && strlen(sess->password_in)) {
1683                         iscsi_opts |= BIT_4;
1684
1685                         rval = qla4xxx_get_chap_index(ha, sess->username_in,
1686                                                       sess->password_in,
1687                                                       BIDI_CHAP, &idx);
1688                         if (rval)
1689                                 goto exit_set_param;
1690                 }
1691         }
1692
1693         if (sess->initial_r2t_en)
1694                 iscsi_opts |= BIT_10;
1695
1696         if (sess->imm_data_en)
1697                 iscsi_opts |= BIT_11;
1698
1699         fw_ddb_entry->iscsi_options = cpu_to_le16(iscsi_opts);
1700
1701         if (conn->max_recv_dlength)
1702                 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
1703                   __constant_cpu_to_le16((conn->max_recv_dlength / BYTE_UNITS));
1704
1705         if (sess->max_r2t)
1706                 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
1707
1708         if (sess->first_burst)
1709                 fw_ddb_entry->iscsi_first_burst_len =
1710                        __constant_cpu_to_le16((sess->first_burst / BYTE_UNITS));
1711
1712         if (sess->max_burst)
1713                 fw_ddb_entry->iscsi_max_burst_len =
1714                         __constant_cpu_to_le16((sess->max_burst / BYTE_UNITS));
1715
1716         if (sess->time2wait)
1717                 fw_ddb_entry->iscsi_def_time2wait =
1718                         cpu_to_le16(sess->time2wait);
1719
1720         if (sess->time2retain)
1721                 fw_ddb_entry->iscsi_def_time2retain =
1722                         cpu_to_le16(sess->time2retain);
1723
1724         status = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1725                                        fw_ddb_entry_dma, mbx_sts);
1726
1727         if (status != QLA_SUCCESS)
1728                 rval = -EINVAL;
1729 exit_set_param:
1730         dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1731                           fw_ddb_entry, fw_ddb_entry_dma);
1732 exit_set_param_no_free:
1733         return rval;
1734 }
1735
1736 int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
1737                           uint16_t stats_size, dma_addr_t stats_dma)
1738 {
1739         int status = QLA_SUCCESS;
1740         uint32_t mbox_cmd[MBOX_REG_COUNT];
1741         uint32_t mbox_sts[MBOX_REG_COUNT];
1742
1743         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1744         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1745         mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA;
1746         mbox_cmd[1] = fw_ddb_index;
1747         mbox_cmd[2] = LSDW(stats_dma);
1748         mbox_cmd[3] = MSDW(stats_dma);
1749         mbox_cmd[4] = stats_size;
1750
1751         status = qla4xxx_mailbox_command(ha, 5, 1, &mbox_cmd[0], &mbox_sts[0]);
1752         if (status != QLA_SUCCESS) {
1753                 DEBUG2(ql4_printk(KERN_WARNING, ha,
1754                                   "%s: MBOX_CMD_GET_MANAGEMENT_DATA "
1755                                   "failed w/ status %04X\n", __func__,
1756                                   mbox_sts[0]));
1757         }
1758         return status;
1759 }
1760
1761 int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx,
1762                          uint32_t ip_idx, uint32_t *sts)
1763 {
1764         uint32_t mbox_cmd[MBOX_REG_COUNT];
1765         uint32_t mbox_sts[MBOX_REG_COUNT];
1766         int status = QLA_SUCCESS;
1767
1768         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1769         memset(&mbox_sts, 0, sizeof(mbox_sts));
1770         mbox_cmd[0] = MBOX_CMD_GET_IP_ADDR_STATE;
1771         mbox_cmd[1] = acb_idx;
1772         mbox_cmd[2] = ip_idx;
1773
1774         status = qla4xxx_mailbox_command(ha, 3, 8, &mbox_cmd[0], &mbox_sts[0]);
1775         if (status != QLA_SUCCESS) {
1776                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: "
1777                                   "MBOX_CMD_GET_IP_ADDR_STATE failed w/ "
1778                                   "status %04X\n", __func__, mbox_sts[0]));
1779         }
1780         memcpy(sts, mbox_sts, sizeof(mbox_sts));
1781         return status;
1782 }
1783
1784 int qla4xxx_get_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
1785                       uint32_t offset, uint32_t size)
1786 {
1787         int status = QLA_SUCCESS;
1788         uint32_t mbox_cmd[MBOX_REG_COUNT];
1789         uint32_t mbox_sts[MBOX_REG_COUNT];
1790
1791         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1792         memset(&mbox_sts, 0, sizeof(mbox_sts));
1793
1794         mbox_cmd[0] = MBOX_CMD_GET_NVRAM;
1795         mbox_cmd[1] = LSDW(nvram_dma);
1796         mbox_cmd[2] = MSDW(nvram_dma);
1797         mbox_cmd[3] = offset;
1798         mbox_cmd[4] = size;
1799
1800         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1801                                          &mbox_sts[0]);
1802         if (status != QLA_SUCCESS) {
1803                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1804                                   "status %04X\n", ha->host_no, __func__,
1805                                   mbox_sts[0]));
1806         }
1807         return status;
1808 }
1809
1810 int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
1811                       uint32_t offset, uint32_t size)
1812 {
1813         int status = QLA_SUCCESS;
1814         uint32_t mbox_cmd[MBOX_REG_COUNT];
1815         uint32_t mbox_sts[MBOX_REG_COUNT];
1816
1817         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1818         memset(&mbox_sts, 0, sizeof(mbox_sts));
1819
1820         mbox_cmd[0] = MBOX_CMD_SET_NVRAM;
1821         mbox_cmd[1] = LSDW(nvram_dma);
1822         mbox_cmd[2] = MSDW(nvram_dma);
1823         mbox_cmd[3] = offset;
1824         mbox_cmd[4] = size;
1825
1826         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1827                                          &mbox_sts[0]);
1828         if (status != QLA_SUCCESS) {
1829                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1830                                   "status %04X\n", ha->host_no, __func__,
1831                                   mbox_sts[0]));
1832         }
1833         return status;
1834 }
1835
1836 int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
1837                                      uint32_t region, uint32_t field0,
1838                                      uint32_t field1)
1839 {
1840         int status = QLA_SUCCESS;
1841         uint32_t mbox_cmd[MBOX_REG_COUNT];
1842         uint32_t mbox_sts[MBOX_REG_COUNT];
1843
1844         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1845         memset(&mbox_sts, 0, sizeof(mbox_sts));
1846
1847         mbox_cmd[0] = MBOX_CMD_RESTORE_FACTORY_DEFAULTS;
1848         mbox_cmd[3] = region;
1849         mbox_cmd[4] = field0;
1850         mbox_cmd[5] = field1;
1851
1852         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0],
1853                                          &mbox_sts[0]);
1854         if (status != QLA_SUCCESS) {
1855                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1856                                   "status %04X\n", ha->host_no, __func__,
1857                                   mbox_sts[0]));
1858         }
1859         return status;
1860 }