2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 #include <linux/version.h>
10 #include <linux/moduleparam.h>
11 #include <linux/vmalloc.h>
12 #include <linux/smp_lock.h>
13 #include <linux/list.h>
15 #include <scsi/scsi_tcq.h>
16 #include <scsi/scsicam.h>
17 #include <linux/delay.h>
20 qla2x00_vp_stop_timer(scsi_qla_host_t
*vha
)
22 if (vha
->parent
&& vha
->timer_active
) {
23 del_timer_sync(&vha
->timer
);
24 vha
->timer_active
= 0;
29 qla24xx_allocate_vp_id(scsi_qla_host_t
*vha
)
32 scsi_qla_host_t
*ha
= vha
->parent
;
34 /* Find an empty slot and assign an vp_id */
36 vp_id
= find_first_zero_bit(ha
->vp_idx_map
, ha
->max_npiv_vports
+ 1);
37 if (vp_id
> ha
->max_npiv_vports
) {
38 DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
39 vp_id
, ha
->max_npiv_vports
));
44 set_bit(vp_id
, ha
->vp_idx_map
);
47 list_add_tail(&vha
->vp_list
, &ha
->vp_list
);
53 qla24xx_deallocate_vp_id(scsi_qla_host_t
*vha
)
56 scsi_qla_host_t
*ha
= vha
->parent
;
61 clear_bit(vp_id
, ha
->vp_idx_map
);
62 list_del(&vha
->vp_list
);
66 static scsi_qla_host_t
*
67 qla24xx_find_vhost_by_name(scsi_qla_host_t
*ha
, uint8_t *port_name
)
71 /* Locate matching device in database. */
72 list_for_each_entry(vha
, &ha
->vp_list
, vp_list
) {
73 if (!memcmp(port_name
, vha
->port_name
, WWN_SIZE
))
80 * qla2x00_mark_vp_devices_dead
81 * Updates fcport state when device goes offline.
84 * ha = adapter block pointer.
85 * fcport = port structure pointer.
93 qla2x00_mark_vp_devices_dead(scsi_qla_host_t
*vha
)
96 scsi_qla_host_t
*pha
= to_qla_parent(vha
);
98 list_for_each_entry(fcport
, &pha
->fcports
, list
) {
99 if (fcport
->vp_idx
!= vha
->vp_idx
)
102 DEBUG15(printk("scsi(%ld): Marking port dead, "
103 "loop_id=0x%04x :%x\n",
104 vha
->host_no
, fcport
->loop_id
, fcport
->vp_idx
));
106 atomic_set(&fcport
->state
, FCS_DEVICE_DEAD
);
107 qla2x00_mark_device_lost(vha
, fcport
, 0, 0);
112 qla24xx_disable_vp(scsi_qla_host_t
*vha
)
116 ret
= qla24xx_control_vp(vha
, VCE_COMMAND_DISABLE_VPS_LOGO_ALL
);
117 atomic_set(&vha
->loop_state
, LOOP_DOWN
);
118 atomic_set(&vha
->loop_down_timer
, LOOP_DOWN_TIME
);
120 /* Delete all vp's fcports from parent's list */
121 qla2x00_mark_vp_devices_dead(vha
);
122 atomic_set(&vha
->vp_state
, VP_FAILED
);
123 vha
->flags
.management_server_logged_in
= 0;
124 if (ret
== QLA_SUCCESS
) {
125 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_DISABLED
);
127 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_FAILED
);
134 qla24xx_enable_vp(scsi_qla_host_t
*vha
)
137 scsi_qla_host_t
*ha
= vha
->parent
;
139 /* Check if physical ha port is Up */
140 if (atomic_read(&ha
->loop_state
) == LOOP_DOWN
||
141 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
142 vha
->vp_err_state
= VP_ERR_PORTDWN
;
143 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_LINKDOWN
);
147 /* Initialize the new vport unless it is a persistent port */
148 down(&ha
->vport_sem
);
149 ret
= qla24xx_modify_vp_config(vha
);
152 if (ret
!= QLA_SUCCESS
) {
153 fc_vport_set_state(vha
->fc_vport
, FC_VPORT_FAILED
);
157 DEBUG15(qla_printk(KERN_INFO
, ha
,
158 "Virtual port with id: %d - Enabled\n", vha
->vp_idx
));
162 DEBUG15(qla_printk(KERN_INFO
, ha
,
163 "Virtual port with id: %d - Disabled\n", vha
->vp_idx
));
168 qla24xx_configure_vp(scsi_qla_host_t
*vha
)
170 struct fc_vport
*fc_vport
;
173 fc_vport
= vha
->fc_vport
;
175 DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
176 vha
->host_no
, __func__
));
177 ret
= qla2x00_send_change_request(vha
, 0x3, vha
->vp_idx
);
178 if (ret
!= QLA_SUCCESS
) {
179 DEBUG15(qla_printk(KERN_ERR
, vha
, "Failed to enable receiving"
180 " of RSCN requests: 0x%x\n", ret
));
183 /* Corresponds to SCR enabled */
184 clear_bit(VP_SCR_NEEDED
, &vha
->vp_flags
);
187 vha
->flags
.online
= 1;
188 if (qla24xx_configure_vhba(vha
))
191 atomic_set(&vha
->vp_state
, VP_ACTIVE
);
192 fc_vport_set_state(fc_vport
, FC_VPORT_ACTIVE
);
196 qla2x00_alert_all_vps(scsi_qla_host_t
*ha
, uint16_t *mb
)
198 int i
, vp_idx_matched
;
199 scsi_qla_host_t
*vha
;
204 for_each_mapped_vp_idx(ha
, i
) {
207 list_for_each_entry(vha
, &ha
->vp_list
, vp_list
) {
208 if (i
== vha
->vp_idx
) {
214 if (vp_idx_matched
) {
216 case MBA_LIP_OCCURRED
:
220 case MBA_POINT_TO_POINT
:
221 case MBA_CHG_IN_CONNECTION
:
222 case MBA_PORT_UPDATE
:
223 case MBA_RSCN_UPDATE
:
224 DEBUG15(printk("scsi(%ld)%s: Async_event for"
225 " VP[%d], mb = 0x%x, vha=%p\n",
226 vha
->host_no
, __func__
,i
, *mb
, vha
));
227 qla2x00_async_event(vha
, mb
);
235 qla2x00_vp_abort_isp(scsi_qla_host_t
*vha
)
238 * Physical port will do most of the abort and recovery work. We can
239 * just treat it as a loop down
241 if (atomic_read(&vha
->loop_state
) != LOOP_DOWN
) {
242 atomic_set(&vha
->loop_state
, LOOP_DOWN
);
243 qla2x00_mark_all_devices_lost(vha
, 0);
245 if (!atomic_read(&vha
->loop_down_timer
))
246 atomic_set(&vha
->loop_down_timer
, LOOP_DOWN_TIME
);
249 DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
250 vha
->host_no
, vha
->vp_idx
));
251 qla24xx_enable_vp(vha
);
255 qla2x00_do_dpc_vp(scsi_qla_host_t
*vha
)
257 if (test_and_clear_bit(VP_IDX_ACQUIRED
, &vha
->vp_flags
)) {
258 /* VP acquired. complete port configuration */
259 qla24xx_configure_vp(vha
);
263 if (test_and_clear_bit(ISP_ABORT_NEEDED
, &vha
->dpc_flags
))
264 qla2x00_vp_abort_isp(vha
);
266 if (test_and_clear_bit(RESET_MARKER_NEEDED
, &vha
->dpc_flags
) &&
267 (!(test_and_set_bit(RESET_ACTIVE
, &vha
->dpc_flags
)))) {
268 clear_bit(RESET_ACTIVE
, &vha
->dpc_flags
);
271 if (test_and_clear_bit(LOOP_RESYNC_NEEDED
, &vha
->dpc_flags
)) {
272 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE
, &vha
->dpc_flags
))) {
273 qla2x00_loop_resync(vha
);
274 clear_bit(LOOP_RESYNC_ACTIVE
, &vha
->dpc_flags
);
282 qla2x00_do_dpc_all_vps(scsi_qla_host_t
*ha
)
285 int i
, vp_idx_matched
;
286 scsi_qla_host_t
*vha
;
290 if (list_empty(&ha
->vp_list
))
293 clear_bit(VP_DPC_NEEDED
, &ha
->dpc_flags
);
295 for_each_mapped_vp_idx(ha
, i
) {
298 list_for_each_entry(vha
, &ha
->vp_list
, vp_list
) {
299 if (i
== vha
->vp_idx
) {
306 ret
= qla2x00_do_dpc_vp(vha
);
311 qla24xx_vport_create_req_sanity_check(struct fc_vport
*fc_vport
)
313 scsi_qla_host_t
*ha
= shost_priv(fc_vport
->shost
);
314 scsi_qla_host_t
*vha
;
315 uint8_t port_name
[WWN_SIZE
];
317 if (fc_vport
->roles
!= FC_PORT_ROLE_FCP_INITIATOR
)
318 return VPCERR_UNSUPPORTED
;
320 /* Check up the F/W and H/W support NPIV */
321 if (!ha
->flags
.npiv_supported
)
322 return VPCERR_UNSUPPORTED
;
324 /* Check up whether npiv supported switch presented */
325 if (!(ha
->switch_cap
& FLOGI_MID_SUPPORT
))
326 return VPCERR_NO_FABRIC_SUPP
;
328 /* Check up unique WWPN */
329 u64_to_wwn(fc_vport
->port_name
, port_name
);
330 if (!memcmp(port_name
, ha
->port_name
, WWN_SIZE
))
331 return VPCERR_BAD_WWN
;
332 vha
= qla24xx_find_vhost_by_name(ha
, port_name
);
334 return VPCERR_BAD_WWN
;
336 /* Check up max-npiv-supports */
337 if (ha
->num_vhosts
> ha
->max_npiv_vports
) {
338 DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
339 "max_npv_vports %ud.\n", ha
->host_no
,
340 ha
->num_vhosts
, ha
->max_npiv_vports
));
341 return VPCERR_UNSUPPORTED
;
347 qla24xx_create_vhost(struct fc_vport
*fc_vport
)
349 scsi_qla_host_t
*ha
= shost_priv(fc_vport
->shost
);
350 scsi_qla_host_t
*vha
;
351 struct Scsi_Host
*host
;
353 host
= scsi_host_alloc(&qla24xx_driver_template
,
354 sizeof(scsi_qla_host_t
));
357 "qla2xxx: scsi_host_alloc() failed for vport\n");
361 vha
= shost_priv(host
);
363 /* clone the parent hba */
364 memcpy(vha
, ha
, sizeof (scsi_qla_host_t
));
366 fc_vport
->dd_data
= vha
;
368 vha
->node_name
= kmalloc(WWN_SIZE
* sizeof(char), GFP_KERNEL
);
370 goto create_vhost_failed_1
;
372 vha
->port_name
= kmalloc(WWN_SIZE
* sizeof(char), GFP_KERNEL
);
374 goto create_vhost_failed_2
;
377 u64_to_wwn(fc_vport
->node_name
, vha
->node_name
);
378 u64_to_wwn(fc_vport
->port_name
, vha
->port_name
);
381 vha
->host_no
= host
->host_no
;
383 vha
->fc_vport
= fc_vport
;
384 vha
->device_flags
= 0;
385 vha
->instance
= num_hosts
;
386 vha
->vp_idx
= qla24xx_allocate_vp_id(vha
);
387 if (vha
->vp_idx
> ha
->max_npiv_vports
) {
388 DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
390 goto create_vhost_failed_3
;
392 vha
->mgmt_svr_loop_id
= 10 + vha
->vp_idx
;
394 init_completion(&vha
->mbx_cmd_comp
);
395 complete(&vha
->mbx_cmd_comp
);
396 init_completion(&vha
->mbx_intr_comp
);
398 INIT_LIST_HEAD(&vha
->list
);
399 INIT_LIST_HEAD(&vha
->fcports
);
400 INIT_LIST_HEAD(&vha
->vp_fcports
);
403 set_bit(REGISTER_FDMI_NEEDED
, &vha
->dpc_flags
);
404 set_bit(REGISTER_FC4_NEEDED
, &vha
->dpc_flags
);
407 * To fix the issue of processing a parent's RSCN for the vport before
408 * its SCR is complete.
410 set_bit(VP_SCR_NEEDED
, &vha
->vp_flags
);
411 atomic_set(&vha
->loop_state
, LOOP_DOWN
);
412 atomic_set(&vha
->loop_down_timer
, LOOP_DOWN_TIME
);
414 qla2x00_start_timer(vha
, qla2x00_timer
, WATCH_INTERVAL
);
416 host
->can_queue
= vha
->request_q_length
+ 128;
418 host
->cmd_per_lun
= 3;
419 host
->max_cmd_len
= MAX_CMDSZ
;
420 host
->max_channel
= MAX_BUSES
- 1;
421 host
->max_lun
= MAX_LUNS
;
422 host
->unique_id
= vha
->instance
;
423 host
->max_id
= MAX_TARGETS_2200
;
424 host
->transportt
= qla2xxx_transport_vport_template
;
426 DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
429 vha
->flags
.init_done
= 1;
432 down(&ha
->vport_sem
);
433 set_bit(vha
->vp_idx
, ha
->vp_idx_map
);
434 ha
->cur_vport_count
++;
439 create_vhost_failed_3
:
440 kfree(vha
->port_name
);
442 create_vhost_failed_2
:
443 kfree(vha
->node_name
);
445 create_vhost_failed_1
: