Commit | Line | Data |
---|---|---|
2c3dfe3f | 1 | /* |
01e58d8e AV |
2 | * QLogic Fibre Channel HBA Driver |
3 | * Copyright (c) 2003-2008 QLogic Corporation | |
2c3dfe3f | 4 | * |
01e58d8e | 5 | * See LICENSE.qla2xxx for copyright and licensing details. |
2c3dfe3f SJ |
6 | */ |
7 | #include "qla_def.h" | |
8 | ||
2c3dfe3f SJ |
9 | #include <linux/moduleparam.h> |
10 | #include <linux/vmalloc.h> | |
11 | #include <linux/smp_lock.h> | |
12 | #include <linux/list.h> | |
13 | ||
14 | #include <scsi/scsi_tcq.h> | |
15 | #include <scsi/scsicam.h> | |
16 | #include <linux/delay.h> | |
17 | ||
2c3dfe3f SJ |
18 | void |
19 | qla2x00_vp_stop_timer(scsi_qla_host_t *vha) | |
20 | { | |
21 | if (vha->parent && vha->timer_active) { | |
22 | del_timer_sync(&vha->timer); | |
23 | vha->timer_active = 0; | |
24 | } | |
25 | } | |
26 | ||
a824ebb3 | 27 | static uint32_t |
2c3dfe3f SJ |
28 | qla24xx_allocate_vp_id(scsi_qla_host_t *vha) |
29 | { | |
30 | uint32_t vp_id; | |
31 | scsi_qla_host_t *ha = vha->parent; | |
32 | ||
33 | /* Find an empty slot and assign an vp_id */ | |
6c2f527c | 34 | mutex_lock(&ha->vport_lock); |
eb66dc60 AV |
35 | vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1); |
36 | if (vp_id > ha->max_npiv_vports) { | |
37 | DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n", | |
38 | vp_id, ha->max_npiv_vports)); | |
6c2f527c | 39 | mutex_unlock(&ha->vport_lock); |
2c3dfe3f SJ |
40 | return vp_id; |
41 | } | |
42 | ||
eb66dc60 | 43 | set_bit(vp_id, ha->vp_idx_map); |
2c3dfe3f | 44 | ha->num_vhosts++; |
711c1d91 | 45 | ha->cur_vport_count++; |
2c3dfe3f SJ |
46 | vha->vp_idx = vp_id; |
47 | list_add_tail(&vha->vp_list, &ha->vp_list); | |
6c2f527c | 48 | mutex_unlock(&ha->vport_lock); |
2c3dfe3f SJ |
49 | return vp_id; |
50 | } | |
51 | ||
52 | void | |
53 | qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) | |
54 | { | |
55 | uint16_t vp_id; | |
56 | scsi_qla_host_t *ha = vha->parent; | |
57 | ||
6c2f527c | 58 | mutex_lock(&ha->vport_lock); |
2c3dfe3f SJ |
59 | vp_id = vha->vp_idx; |
60 | ha->num_vhosts--; | |
711c1d91 | 61 | ha->cur_vport_count--; |
eb66dc60 | 62 | clear_bit(vp_id, ha->vp_idx_map); |
2c3dfe3f | 63 | list_del(&vha->vp_list); |
6c2f527c | 64 | mutex_unlock(&ha->vport_lock); |
2c3dfe3f SJ |
65 | } |
66 | ||
a824ebb3 | 67 | static scsi_qla_host_t * |
2c3dfe3f SJ |
68 | qla24xx_find_vhost_by_name(scsi_qla_host_t *ha, uint8_t *port_name) |
69 | { | |
70 | scsi_qla_host_t *vha; | |
71 | ||
72 | /* Locate matching device in database. */ | |
73 | list_for_each_entry(vha, &ha->vp_list, vp_list) { | |
74 | if (!memcmp(port_name, vha->port_name, WWN_SIZE)) | |
75 | return vha; | |
76 | } | |
77 | return NULL; | |
78 | } | |
79 | ||
80 | /* | |
81 | * qla2x00_mark_vp_devices_dead | |
82 | * Updates fcport state when device goes offline. | |
83 | * | |
84 | * Input: | |
85 | * ha = adapter block pointer. | |
86 | * fcport = port structure pointer. | |
87 | * | |
88 | * Return: | |
89 | * None. | |
90 | * | |
91 | * Context: | |
92 | */ | |
26ff776d | 93 | static void |
2c3dfe3f SJ |
94 | qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) |
95 | { | |
96 | fc_port_t *fcport; | |
97 | scsi_qla_host_t *pha = to_qla_parent(vha); | |
98 | ||
99 | list_for_each_entry(fcport, &pha->fcports, list) { | |
100 | if (fcport->vp_idx != vha->vp_idx) | |
101 | continue; | |
102 | ||
103 | DEBUG15(printk("scsi(%ld): Marking port dead, " | |
104 | "loop_id=0x%04x :%x\n", | |
105 | vha->host_no, fcport->loop_id, fcport->vp_idx)); | |
106 | ||
2c3dfe3f | 107 | qla2x00_mark_device_lost(vha, fcport, 0, 0); |
c9c5ced9 | 108 | atomic_set(&fcport->state, FCS_UNCONFIGURED); |
2c3dfe3f SJ |
109 | } |
110 | } | |
111 | ||
112 | int | |
113 | qla24xx_disable_vp(scsi_qla_host_t *vha) | |
114 | { | |
115 | int ret; | |
116 | ||
117 | ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); | |
118 | atomic_set(&vha->loop_state, LOOP_DOWN); | |
119 | atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); | |
120 | ||
121 | /* Delete all vp's fcports from parent's list */ | |
122 | qla2x00_mark_vp_devices_dead(vha); | |
123 | atomic_set(&vha->vp_state, VP_FAILED); | |
124 | vha->flags.management_server_logged_in = 0; | |
125 | if (ret == QLA_SUCCESS) { | |
126 | fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED); | |
127 | } else { | |
128 | fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); | |
129 | return -1; | |
130 | } | |
131 | return 0; | |
132 | } | |
133 | ||
134 | int | |
135 | qla24xx_enable_vp(scsi_qla_host_t *vha) | |
136 | { | |
137 | int ret; | |
138 | scsi_qla_host_t *ha = vha->parent; | |
139 | ||
140 | /* Check if physical ha port is Up */ | |
141 | if (atomic_read(&ha->loop_state) == LOOP_DOWN || | |
142 | atomic_read(&ha->loop_state) == LOOP_DEAD ) { | |
143 | vha->vp_err_state = VP_ERR_PORTDWN; | |
144 | fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); | |
145 | goto enable_failed; | |
146 | } | |
147 | ||
148 | /* Initialize the new vport unless it is a persistent port */ | |
6c2f527c | 149 | mutex_lock(&ha->vport_lock); |
2c3dfe3f | 150 | ret = qla24xx_modify_vp_config(vha); |
6c2f527c | 151 | mutex_unlock(&ha->vport_lock); |
2c3dfe3f SJ |
152 | |
153 | if (ret != QLA_SUCCESS) { | |
154 | fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); | |
155 | goto enable_failed; | |
156 | } | |
157 | ||
158 | DEBUG15(qla_printk(KERN_INFO, ha, | |
159 | "Virtual port with id: %d - Enabled\n", vha->vp_idx)); | |
160 | return 0; | |
161 | ||
162 | enable_failed: | |
163 | DEBUG15(qla_printk(KERN_INFO, ha, | |
164 | "Virtual port with id: %d - Disabled\n", vha->vp_idx)); | |
165 | return 1; | |
166 | } | |
167 | ||
26ff776d | 168 | static void |
2c3dfe3f SJ |
169 | qla24xx_configure_vp(scsi_qla_host_t *vha) |
170 | { | |
171 | struct fc_vport *fc_vport; | |
172 | int ret; | |
173 | ||
174 | fc_vport = vha->fc_vport; | |
175 | ||
176 | DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n", | |
177 | vha->host_no, __func__)); | |
178 | ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); | |
179 | if (ret != QLA_SUCCESS) { | |
180 | DEBUG15(qla_printk(KERN_ERR, vha, "Failed to enable receiving" | |
181 | " of RSCN requests: 0x%x\n", ret)); | |
182 | return; | |
183 | } else { | |
184 | /* Corresponds to SCR enabled */ | |
185 | clear_bit(VP_SCR_NEEDED, &vha->vp_flags); | |
186 | } | |
187 | ||
188 | vha->flags.online = 1; | |
189 | if (qla24xx_configure_vhba(vha)) | |
190 | return; | |
191 | ||
192 | atomic_set(&vha->vp_state, VP_ACTIVE); | |
193 | fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); | |
194 | } | |
195 | ||
196 | void | |
197 | qla2x00_alert_all_vps(scsi_qla_host_t *ha, uint16_t *mb) | |
198 | { | |
199 | int i, vp_idx_matched; | |
200 | scsi_qla_host_t *vha; | |
201 | ||
202 | if (ha->parent) | |
203 | return; | |
204 | ||
eb66dc60 | 205 | for_each_mapped_vp_idx(ha, i) { |
2c3dfe3f SJ |
206 | vp_idx_matched = 0; |
207 | ||
208 | list_for_each_entry(vha, &ha->vp_list, vp_list) { | |
209 | if (i == vha->vp_idx) { | |
210 | vp_idx_matched = 1; | |
211 | break; | |
212 | } | |
213 | } | |
214 | ||
215 | if (vp_idx_matched) { | |
216 | switch (mb[0]) { | |
217 | case MBA_LIP_OCCURRED: | |
218 | case MBA_LOOP_UP: | |
219 | case MBA_LOOP_DOWN: | |
220 | case MBA_LIP_RESET: | |
221 | case MBA_POINT_TO_POINT: | |
222 | case MBA_CHG_IN_CONNECTION: | |
223 | case MBA_PORT_UPDATE: | |
224 | case MBA_RSCN_UPDATE: | |
225 | DEBUG15(printk("scsi(%ld)%s: Async_event for" | |
226 | " VP[%d], mb = 0x%x, vha=%p\n", | |
227 | vha->host_no, __func__,i, *mb, vha)); | |
228 | qla2x00_async_event(vha, mb); | |
229 | break; | |
230 | } | |
231 | } | |
232 | } | |
233 | } | |
234 | ||
235 | void | |
236 | qla2x00_vp_abort_isp(scsi_qla_host_t *vha) | |
237 | { | |
238 | /* | |
239 | * Physical port will do most of the abort and recovery work. We can | |
240 | * just treat it as a loop down | |
241 | */ | |
242 | if (atomic_read(&vha->loop_state) != LOOP_DOWN) { | |
243 | atomic_set(&vha->loop_state, LOOP_DOWN); | |
244 | qla2x00_mark_all_devices_lost(vha, 0); | |
245 | } else { | |
246 | if (!atomic_read(&vha->loop_down_timer)) | |
247 | atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); | |
248 | } | |
249 | ||
250 | DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n", | |
251 | vha->host_no, vha->vp_idx)); | |
252 | qla24xx_enable_vp(vha); | |
253 | } | |
254 | ||
a824ebb3 | 255 | static int |
2c3dfe3f SJ |
256 | qla2x00_do_dpc_vp(scsi_qla_host_t *vha) |
257 | { | |
221726d4 SJ |
258 | scsi_qla_host_t *ha = vha->parent; |
259 | ||
2c3dfe3f SJ |
260 | if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { |
261 | /* VP acquired. complete port configuration */ | |
221726d4 SJ |
262 | if (atomic_read(&ha->loop_state) == LOOP_READY) { |
263 | qla24xx_configure_vp(vha); | |
264 | } else { | |
265 | set_bit(VP_IDX_ACQUIRED, &vha->vp_flags); | |
266 | set_bit(VP_DPC_NEEDED, &ha->dpc_flags); | |
267 | } | |
268 | ||
2c3dfe3f SJ |
269 | return 0; |
270 | } | |
271 | ||
272 | if (test_and_clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) | |
273 | qla2x00_vp_abort_isp(vha); | |
274 | ||
275 | if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && | |
276 | (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { | |
277 | clear_bit(RESET_ACTIVE, &vha->dpc_flags); | |
278 | } | |
279 | ||
5de1f70f SJ |
280 | if (atomic_read(&vha->vp_state) == VP_ACTIVE && |
281 | test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { | |
2c3dfe3f SJ |
282 | if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { |
283 | qla2x00_loop_resync(vha); | |
284 | clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); | |
285 | } | |
286 | } | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | void | |
292 | qla2x00_do_dpc_all_vps(scsi_qla_host_t *ha) | |
293 | { | |
294 | int ret; | |
295 | int i, vp_idx_matched; | |
296 | scsi_qla_host_t *vha; | |
297 | ||
298 | if (ha->parent) | |
299 | return; | |
300 | if (list_empty(&ha->vp_list)) | |
301 | return; | |
302 | ||
303 | clear_bit(VP_DPC_NEEDED, &ha->dpc_flags); | |
304 | ||
eb66dc60 | 305 | for_each_mapped_vp_idx(ha, i) { |
2c3dfe3f SJ |
306 | vp_idx_matched = 0; |
307 | ||
308 | list_for_each_entry(vha, &ha->vp_list, vp_list) { | |
309 | if (i == vha->vp_idx) { | |
310 | vp_idx_matched = 1; | |
311 | break; | |
312 | } | |
313 | } | |
314 | ||
315 | if (vp_idx_matched) | |
316 | ret = qla2x00_do_dpc_vp(vha); | |
317 | } | |
318 | } | |
319 | ||
320 | int | |
321 | qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) | |
322 | { | |
f363b943 | 323 | scsi_qla_host_t *ha = shost_priv(fc_vport->shost); |
2c3dfe3f SJ |
324 | scsi_qla_host_t *vha; |
325 | uint8_t port_name[WWN_SIZE]; | |
326 | ||
327 | if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR) | |
328 | return VPCERR_UNSUPPORTED; | |
329 | ||
330 | /* Check up the F/W and H/W support NPIV */ | |
331 | if (!ha->flags.npiv_supported) | |
332 | return VPCERR_UNSUPPORTED; | |
333 | ||
334 | /* Check up whether npiv supported switch presented */ | |
335 | if (!(ha->switch_cap & FLOGI_MID_SUPPORT)) | |
336 | return VPCERR_NO_FABRIC_SUPP; | |
337 | ||
338 | /* Check up unique WWPN */ | |
339 | u64_to_wwn(fc_vport->port_name, port_name); | |
50db6b13 SJ |
340 | if (!memcmp(port_name, ha->port_name, WWN_SIZE)) |
341 | return VPCERR_BAD_WWN; | |
2c3dfe3f SJ |
342 | vha = qla24xx_find_vhost_by_name(ha, port_name); |
343 | if (vha) | |
344 | return VPCERR_BAD_WWN; | |
345 | ||
346 | /* Check up max-npiv-supports */ | |
347 | if (ha->num_vhosts > ha->max_npiv_vports) { | |
eb66dc60 AV |
348 | DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than " |
349 | "max_npv_vports %ud.\n", ha->host_no, | |
350 | ha->num_vhosts, ha->max_npiv_vports)); | |
2c3dfe3f SJ |
351 | return VPCERR_UNSUPPORTED; |
352 | } | |
353 | return 0; | |
354 | } | |
355 | ||
356 | scsi_qla_host_t * | |
357 | qla24xx_create_vhost(struct fc_vport *fc_vport) | |
358 | { | |
f363b943 | 359 | scsi_qla_host_t *ha = shost_priv(fc_vport->shost); |
2c3dfe3f SJ |
360 | scsi_qla_host_t *vha; |
361 | struct Scsi_Host *host; | |
362 | ||
363 | host = scsi_host_alloc(&qla24xx_driver_template, | |
364 | sizeof(scsi_qla_host_t)); | |
365 | if (!host) { | |
366 | printk(KERN_WARNING | |
367 | "qla2xxx: scsi_host_alloc() failed for vport\n"); | |
368 | return(NULL); | |
369 | } | |
370 | ||
f363b943 | 371 | vha = shost_priv(host); |
2c3dfe3f SJ |
372 | |
373 | /* clone the parent hba */ | |
374 | memcpy(vha, ha, sizeof (scsi_qla_host_t)); | |
375 | ||
376 | fc_vport->dd_data = vha; | |
377 | ||
378 | vha->node_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL); | |
379 | if (!vha->node_name) | |
380 | goto create_vhost_failed_1; | |
381 | ||
382 | vha->port_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL); | |
383 | if (!vha->port_name) | |
384 | goto create_vhost_failed_2; | |
385 | ||
386 | /* New host info */ | |
387 | u64_to_wwn(fc_vport->node_name, vha->node_name); | |
388 | u64_to_wwn(fc_vport->port_name, vha->port_name); | |
389 | ||
390 | vha->host = host; | |
391 | vha->host_no = host->host_no; | |
392 | vha->parent = ha; | |
393 | vha->fc_vport = fc_vport; | |
394 | vha->device_flags = 0; | |
2c3dfe3f SJ |
395 | vha->vp_idx = qla24xx_allocate_vp_id(vha); |
396 | if (vha->vp_idx > ha->max_npiv_vports) { | |
397 | DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n", | |
398 | vha->host_no)); | |
399 | goto create_vhost_failed_3; | |
400 | } | |
401 | vha->mgmt_svr_loop_id = 10 + vha->vp_idx; | |
402 | ||
0b05a1f0 MB |
403 | init_completion(&vha->mbx_cmd_comp); |
404 | complete(&vha->mbx_cmd_comp); | |
405 | init_completion(&vha->mbx_intr_comp); | |
2c3dfe3f SJ |
406 | |
407 | INIT_LIST_HEAD(&vha->list); | |
408 | INIT_LIST_HEAD(&vha->fcports); | |
409 | INIT_LIST_HEAD(&vha->vp_fcports); | |
08b95a12 | 410 | INIT_LIST_HEAD(&vha->work_list); |
2c3dfe3f SJ |
411 | |
412 | vha->dpc_flags = 0L; | |
413 | set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); | |
414 | set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); | |
415 | ||
416 | /* | |
417 | * To fix the issue of processing a parent's RSCN for the vport before | |
418 | * its SCR is complete. | |
419 | */ | |
420 | set_bit(VP_SCR_NEEDED, &vha->vp_flags); | |
421 | atomic_set(&vha->loop_state, LOOP_DOWN); | |
422 | atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); | |
423 | ||
424 | qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL); | |
425 | ||
426 | host->can_queue = vha->request_q_length + 128; | |
427 | host->this_id = 255; | |
428 | host->cmd_per_lun = 3; | |
429 | host->max_cmd_len = MAX_CMDSZ; | |
430 | host->max_channel = MAX_BUSES - 1; | |
431 | host->max_lun = MAX_LUNS; | |
711c1d91 | 432 | host->unique_id = host->host_no; |
2c3dfe3f SJ |
433 | host->max_id = MAX_TARGETS_2200; |
434 | host->transportt = qla2xxx_transport_vport_template; | |
435 | ||
436 | DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n", | |
437 | vha->host_no, vha)); | |
438 | ||
439 | vha->flags.init_done = 1; | |
2c3dfe3f SJ |
440 | |
441 | return vha; | |
442 | ||
443 | create_vhost_failed_3: | |
444 | kfree(vha->port_name); | |
445 | ||
446 | create_vhost_failed_2: | |
447 | kfree(vha->node_name); | |
448 | ||
449 | create_vhost_failed_1: | |
450 | return NULL; | |
451 | } |