2 * QLOGIC LINUX SOFTWARE
4 * QLogic ISP2x00 device driver for Linux 2.6.x
5 * Copyright (C) 2003-2005 QLogic Corporation
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
21 #include <linux/version.h>
22 #include <linux/moduleparam.h>
23 #include <linux/vmalloc.h>
24 #include <linux/smp_lock.h>
25 #include <linux/list.h>
27 #include <scsi/scsi_tcq.h>
28 #include <scsi/scsicam.h>
29 #include <linux/delay.h>
31 void qla2x00_vp_stop_timer(scsi_qla_host_t
*);
34 qla2x00_vp_stop_timer(scsi_qla_host_t
*vha
)
36 if (vha
->parent
&& vha
->timer_active
) {
37 del_timer_sync(&vha
->timer
);
38 vha
->timer_active
= 0;
43 qla24xx_allocate_vp_id(scsi_qla_host_t
*vha
)
46 scsi_qla_host_t
*ha
= vha
->parent
;
48 /* Find an empty slot and assign an vp_id */
50 vp_id
= find_first_zero_bit((unsigned long *)ha
->vp_idx_map
,
52 if (vp_id
> MAX_MULTI_ID_FABRIC
) {
53 DEBUG15(printk ("vp_id %d is bigger than MAX_MULTI_ID_FABRID\n",
59 set_bit(vp_id
, (unsigned long *)ha
->vp_idx_map
);
62 list_add_tail(&vha
->vp_list
, &ha
->vp_list
);
68 qla24xx_deallocate_vp_id(scsi_qla_host_t
*vha
)
71 scsi_qla_host_t
*ha
= vha
->parent
;
76 clear_bit(vp_id
, (unsigned long *)ha
->vp_idx_map
);
77 list_del(&vha
->vp_list
);
82 qla24xx_find_vhost_by_name(scsi_qla_host_t
*ha
, uint8_t *port_name
)
86 /* Locate matching device in database. */
87 list_for_each_entry(vha
, &ha
->vp_list
, vp_list
) {
88 if (!memcmp(port_name
, vha
->port_name
, WWN_SIZE
))
95 * qla2x00_mark_vp_devices_dead
96 * Updates fcport state when device goes offline.
99 * ha = adapter block pointer.
100 * fcport = port structure pointer.
108 qla2x00_mark_vp_devices_dead(scsi_qla_host_t
*vha
)
111 scsi_qla_host_t
*pha
= to_qla_parent(vha
);
113 list_for_each_entry(fcport
, &pha
->fcports
, list
) {
114 if (fcport
->vp_idx
!= vha
->vp_idx
)
117 DEBUG15(printk("scsi(%ld): Marking port dead, "
118 "loop_id=0x%04x :%x\n",
119 vha
->host_no
, fcport
->loop_id
, fcport
->vp_idx
));
121 atomic_set(&fcport
->state
, FCS_DEVICE_DEAD
);
122 qla2x00_mark_device_lost(vha
, fcport
, 0, 0);
127 qla24xx_disable_vp(scsi_qla_host_t
*vha
)
131 ret
= qla24xx_control_vp(vha
, VCE_COMMAND_DISABLE_VPS_LOGO_ALL
);
132 atomic_set(&vha
->loop_state
, LOOP_DOWN
);
133 atomic_set(&vha
->loop_down_timer
, LOOP_DOWN_TIME
);
135 /* Delete all vp's fcports from parent's list */
136 qla2x00_mark_vp_devices_dead(vha
);
137 atomic_set(&vha
->vp_state
, VP_FAILED
);
138 vha
->flags
.management_server_logged_in
= 0;
139 if (ret
== QLA_SUCCESS
) {
140 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_DISABLED
);
142 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_FAILED
);
149 qla24xx_enable_vp(scsi_qla_host_t
*vha
)
152 scsi_qla_host_t
*ha
= vha
->parent
;
154 /* Check if physical ha port is Up */
155 if (atomic_read(&ha
->loop_state
) == LOOP_DOWN
||
156 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
157 vha
->vp_err_state
= VP_ERR_PORTDWN
;
158 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_LINKDOWN
);
162 /* Initialize the new vport unless it is a persistent port */
163 down(&ha
->vport_sem
);
164 ret
= qla24xx_modify_vp_config(vha
);
167 if (ret
!= QLA_SUCCESS
) {
168 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_FAILED
);
172 DEBUG15(qla_printk(KERN_INFO
, ha
,
173 "Virtual port with id: %d - Enabled\n", vha
->vp_idx
));
177 DEBUG15(qla_printk(KERN_INFO
, ha
,
178 "Virtual port with id: %d - Disabled\n", vha
->vp_idx
));
183 * qla24xx_modify_vport() - Modifies the virtual fabric port's configuration
185 * @vp: pointer to buffer of virtual port parameters.
186 * @ret_code: return error code:
188 * Returns the virtual port id, or MAX_VSAN_ID, if couldn't create.
191 qla24xx_modify_vhba(scsi_qla_host_t
*ha
, vport_params_t
*vp
, uint32_t *vp_id
)
193 scsi_qla_host_t
*vha
;
195 vha
= qla24xx_find_vhost_by_name(ha
, vp
->port_name
);
197 *vp_id
= MAX_NUM_VPORT_LOOP
;
198 return VP_RET_CODE_WWPN
;
201 if (qla24xx_enable_vp(vha
)) {
202 scsi_host_put(vha
->host
);
203 qla2x00_mem_free(vha
);
204 *vp_id
= MAX_NUM_VPORT_LOOP
;
205 return VP_RET_CODE_RESOURCES
;
208 *vp_id
= vha
->vp_idx
;
209 return VP_RET_CODE_OK
;
213 qla24xx_configure_vp(scsi_qla_host_t
*vha
)
215 struct fc_vport
*fc_vport
;
218 fc_vport
= vha
->fc_vport
;
220 DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
221 vha
->host_no
, __func__
));
222 ret
= qla2x00_send_change_request(vha
, 0x3, vha
->vp_idx
);
223 if (ret
!= QLA_SUCCESS
) {
224 DEBUG15(qla_printk(KERN_ERR
, vha
, "Failed to enable receiving"
225 " of RSCN requests: 0x%x\n", ret
));
228 /* Corresponds to SCR enabled */
229 clear_bit(VP_SCR_NEEDED
, &vha
->vp_flags
);
232 vha
->flags
.online
= 1;
233 if (qla24xx_configure_vhba(vha
))
236 atomic_set(&vha
->vp_state
, VP_ACTIVE
);
237 fc_vport_set_state(fc_vport
, FC_VPORT_ACTIVE
);
241 qla2x00_alert_all_vps(scsi_qla_host_t
*ha
, uint16_t *mb
)
243 int i
, vp_idx_matched
;
244 scsi_qla_host_t
*vha
;
249 i
= find_next_bit((unsigned long *)ha
->vp_idx_map
,
250 MAX_MULTI_ID_FABRIC
+ 1, 1);
251 for (;i
<= MAX_MULTI_ID_FABRIC
;
252 i
= find_next_bit((unsigned long *)ha
->vp_idx_map
,
253 MAX_MULTI_ID_FABRIC
+ 1, i
+ 1)) {
256 list_for_each_entry(vha
, &ha
->vp_list
, vp_list
) {
257 if (i
== vha
->vp_idx
) {
263 if (vp_idx_matched
) {
265 case MBA_LIP_OCCURRED
:
269 case MBA_POINT_TO_POINT
:
270 case MBA_CHG_IN_CONNECTION
:
271 case MBA_PORT_UPDATE
:
272 case MBA_RSCN_UPDATE
:
273 DEBUG15(printk("scsi(%ld)%s: Async_event for"
274 " VP[%d], mb = 0x%x, vha=%p\n",
275 vha
->host_no
, __func__
,i
, *mb
, vha
));
276 qla2x00_async_event(vha
, mb
);
284 qla2x00_vp_abort_isp(scsi_qla_host_t
*vha
)
287 * Physical port will do most of the abort and recovery work. We can
288 * just treat it as a loop down
290 if (atomic_read(&vha
->loop_state
) != LOOP_DOWN
) {
291 atomic_set(&vha
->loop_state
, LOOP_DOWN
);
292 qla2x00_mark_all_devices_lost(vha
, 0);
294 if (!atomic_read(&vha
->loop_down_timer
))
295 atomic_set(&vha
->loop_down_timer
, LOOP_DOWN_TIME
);
298 DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
299 vha
->host_no
, vha
->vp_idx
));
300 qla24xx_enable_vp(vha
);
304 qla2x00_do_dpc_vp(scsi_qla_host_t
*vha
)
306 if (test_and_clear_bit(VP_IDX_ACQUIRED
, &vha
->vp_flags
)) {
307 /* VP acquired. complete port configuration */
308 qla24xx_configure_vp(vha
);
312 if (test_and_clear_bit(ISP_ABORT_NEEDED
, &vha
->dpc_flags
))
313 qla2x00_vp_abort_isp(vha
);
315 if (test_and_clear_bit(RESET_MARKER_NEEDED
, &vha
->dpc_flags
) &&
316 (!(test_and_set_bit(RESET_ACTIVE
, &vha
->dpc_flags
)))) {
317 clear_bit(RESET_ACTIVE
, &vha
->dpc_flags
);
320 if (test_and_clear_bit(LOOP_RESYNC_NEEDED
, &vha
->dpc_flags
)) {
321 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE
, &vha
->dpc_flags
))) {
322 qla2x00_loop_resync(vha
);
323 clear_bit(LOOP_RESYNC_ACTIVE
, &vha
->dpc_flags
);
331 qla2x00_do_dpc_all_vps(scsi_qla_host_t
*ha
)
334 int i
, vp_idx_matched
;
335 scsi_qla_host_t
*vha
;
339 if (list_empty(&ha
->vp_list
))
342 clear_bit(VP_DPC_NEEDED
, &ha
->dpc_flags
);
344 i
= find_next_bit((unsigned long *)ha
->vp_idx_map
,
345 MAX_MULTI_ID_FABRIC
+ 1, 1);
346 for (;i
<= MAX_MULTI_ID_FABRIC
;
347 i
= find_next_bit((unsigned long *)ha
->vp_idx_map
,
348 MAX_MULTI_ID_FABRIC
+ 1, i
+ 1)) {
351 list_for_each_entry(vha
, &ha
->vp_list
, vp_list
) {
352 if (i
== vha
->vp_idx
) {
359 ret
= qla2x00_do_dpc_vp(vha
);
364 qla24xx_vport_create_req_sanity_check(struct fc_vport
*fc_vport
)
366 scsi_qla_host_t
*ha
= (scsi_qla_host_t
*) fc_vport
->shost
->hostdata
;
367 scsi_qla_host_t
*vha
;
368 uint8_t port_name
[WWN_SIZE
];
370 if (fc_vport
->roles
!= FC_PORT_ROLE_FCP_INITIATOR
)
371 return VPCERR_UNSUPPORTED
;
373 /* Check up the F/W and H/W support NPIV */
374 if (!ha
->flags
.npiv_supported
)
375 return VPCERR_UNSUPPORTED
;
377 /* Check up whether npiv supported switch presented */
378 if (!(ha
->switch_cap
& FLOGI_MID_SUPPORT
))
379 return VPCERR_NO_FABRIC_SUPP
;
381 /* Check up unique WWPN */
382 u64_to_wwn(fc_vport
->port_name
, port_name
);
383 vha
= qla24xx_find_vhost_by_name(ha
, port_name
);
385 return VPCERR_BAD_WWN
;
387 /* Check up max-npiv-supports */
388 if (ha
->num_vhosts
> ha
->max_npiv_vports
) {
389 DEBUG15(printk("scsi(%ld): num_vhosts %d is bigger than "
390 "max_npv_vports %d.\n", ha
->host_no
,
391 (uint16_t) ha
->num_vhosts
, (int) ha
->max_npiv_vports
));
392 return VPCERR_UNSUPPORTED
;
398 qla24xx_create_vhost(struct fc_vport
*fc_vport
)
400 scsi_qla_host_t
*ha
= (scsi_qla_host_t
*) fc_vport
->shost
->hostdata
;
401 scsi_qla_host_t
*vha
;
402 struct Scsi_Host
*host
;
404 host
= scsi_host_alloc(&qla24xx_driver_template
,
405 sizeof(scsi_qla_host_t
));
408 "qla2xxx: scsi_host_alloc() failed for vport\n");
412 vha
= (scsi_qla_host_t
*)host
->hostdata
;
414 /* clone the parent hba */
415 memcpy(vha
, ha
, sizeof (scsi_qla_host_t
));
417 fc_vport
->dd_data
= vha
;
419 vha
->node_name
= kmalloc(WWN_SIZE
* sizeof(char), GFP_KERNEL
);
421 goto create_vhost_failed_1
;
423 vha
->port_name
= kmalloc(WWN_SIZE
* sizeof(char), GFP_KERNEL
);
425 goto create_vhost_failed_2
;
428 u64_to_wwn(fc_vport
->node_name
, vha
->node_name
);
429 u64_to_wwn(fc_vport
->port_name
, vha
->port_name
);
432 vha
->host_no
= host
->host_no
;
434 vha
->fc_vport
= fc_vport
;
435 vha
->device_flags
= 0;
436 vha
->instance
= num_hosts
;
437 vha
->vp_idx
= qla24xx_allocate_vp_id(vha
);
438 if (vha
->vp_idx
> ha
->max_npiv_vports
) {
439 DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
441 goto create_vhost_failed_3
;
443 vha
->mgmt_svr_loop_id
= 10 + vha
->vp_idx
;
445 init_MUTEX(&vha
->mbx_cmd_sem
);
446 init_MUTEX_LOCKED(&vha
->mbx_intr_sem
);
448 INIT_LIST_HEAD(&vha
->list
);
449 INIT_LIST_HEAD(&vha
->fcports
);
450 INIT_LIST_HEAD(&vha
->vp_fcports
);
453 set_bit(REGISTER_FDMI_NEEDED
, &vha
->dpc_flags
);
454 set_bit(REGISTER_FC4_NEEDED
, &vha
->dpc_flags
);
457 * To fix the issue of processing a parent's RSCN for the vport before
458 * its SCR is complete.
460 set_bit(VP_SCR_NEEDED
, &vha
->vp_flags
);
461 atomic_set(&vha
->loop_state
, LOOP_DOWN
);
462 atomic_set(&vha
->loop_down_timer
, LOOP_DOWN_TIME
);
464 qla2x00_start_timer(vha
, qla2x00_timer
, WATCH_INTERVAL
);
466 host
->can_queue
= vha
->request_q_length
+ 128;
468 host
->cmd_per_lun
= 3;
469 host
->max_cmd_len
= MAX_CMDSZ
;
470 host
->max_channel
= MAX_BUSES
- 1;
471 host
->max_lun
= MAX_LUNS
;
472 host
->unique_id
= vha
->instance
;
473 host
->max_id
= MAX_TARGETS_2200
;
474 host
->transportt
= qla2xxx_transport_vport_template
;
476 DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
479 vha
->flags
.init_done
= 1;
482 down(&ha
->vport_sem
);
483 set_bit(vha
->vp_idx
, (unsigned long *)ha
->vp_idx_map
);
484 ha
->cur_vport_count
++;
489 create_vhost_failed_3
:
490 kfree(vha
->port_name
);
492 create_vhost_failed_2
:
493 kfree(vha
->node_name
);
495 create_vhost_failed_1
: