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2d70c103 NB |
1 | /* |
2 | * qla_target.c SCSI LLD infrastructure for QLogic 22xx/23xx/24xx/25xx | |
3 | * | |
4 | * based on qla2x00t.c code: | |
5 | * | |
6 | * Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net> | |
7 | * Copyright (C) 2004 - 2005 Leonid Stoljar | |
8 | * Copyright (C) 2006 Nathaniel Clark <nate@misrule.us> | |
9 | * Copyright (C) 2006 - 2010 ID7 Ltd. | |
10 | * | |
11 | * Forward port and refactoring to modern qla2xxx and target/configfs | |
12 | * | |
4c76251e | 13 | * Copyright (C) 2010-2013 Nicholas A. Bellinger <nab@kernel.org> |
2d70c103 NB |
14 | * |
15 | * This program is free software; you can redistribute it and/or | |
16 | * modify it under the terms of the GNU General Public License | |
17 | * as published by the Free Software Foundation, version 2 | |
18 | * of the License. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/types.h> | |
2d70c103 NB |
29 | #include <linux/blkdev.h> |
30 | #include <linux/interrupt.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/delay.h> | |
33 | #include <linux/list.h> | |
34 | #include <linux/workqueue.h> | |
35 | #include <asm/unaligned.h> | |
36 | #include <scsi/scsi.h> | |
37 | #include <scsi/scsi_host.h> | |
38 | #include <scsi/scsi_tcq.h> | |
39 | #include <target/target_core_base.h> | |
40 | #include <target/target_core_fabric.h> | |
41 | ||
42 | #include "qla_def.h" | |
43 | #include "qla_target.h" | |
44 | ||
d154f350 AE |
45 | static int ql2xtgt_tape_enable; |
46 | module_param(ql2xtgt_tape_enable, int, S_IRUGO|S_IWUSR); | |
47 | MODULE_PARM_DESC(ql2xtgt_tape_enable, | |
48 | "Enables Sequence level error recovery (aka FC Tape). Default is 0 - no SLER. 1 - Enable SLER."); | |
49 | ||
2d70c103 NB |
50 | static char *qlini_mode = QLA2XXX_INI_MODE_STR_ENABLED; |
51 | module_param(qlini_mode, charp, S_IRUGO); | |
52 | MODULE_PARM_DESC(qlini_mode, | |
53 | "Determines when initiator mode will be enabled. Possible values: " | |
54 | "\"exclusive\" - initiator mode will be enabled on load, " | |
55 | "disabled on enabling target mode and then on disabling target mode " | |
56 | "enabled back; " | |
57 | "\"disabled\" - initiator mode will never be enabled; " | |
ead03855 QT |
58 | "\"dual\" - Initiator Modes will be enabled. Target Mode can be activated " |
59 | "when ready " | |
2d70c103 NB |
60 | "\"enabled\" (default) - initiator mode will always stay enabled."); |
61 | ||
ead03855 QT |
62 | static int ql_dm_tgt_ex_pct = 50; |
63 | module_param(ql_dm_tgt_ex_pct, int, S_IRUGO|S_IWUSR); | |
64 | MODULE_PARM_DESC(ql_dm_tgt_ex_pct, | |
65 | "For Dual Mode (qlini_mode=dual), this parameter determines " | |
66 | "the percentage of exchanges/cmds FW will allocate resources " | |
67 | "for Target mode."); | |
68 | ||
aa230bc5 | 69 | int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE; |
2d70c103 | 70 | |
33e79977 QT |
71 | static int temp_sam_status = SAM_STAT_BUSY; |
72 | ||
2d70c103 NB |
73 | /* |
74 | * From scsi/fc/fc_fcp.h | |
75 | */ | |
76 | enum fcp_resp_rsp_codes { | |
77 | FCP_TMF_CMPL = 0, | |
78 | FCP_DATA_LEN_INVALID = 1, | |
79 | FCP_CMND_FIELDS_INVALID = 2, | |
80 | FCP_DATA_PARAM_MISMATCH = 3, | |
81 | FCP_TMF_REJECTED = 4, | |
82 | FCP_TMF_FAILED = 5, | |
83 | FCP_TMF_INVALID_LUN = 9, | |
84 | }; | |
85 | ||
86 | /* | |
87 | * fc_pri_ta from scsi/fc/fc_fcp.h | |
88 | */ | |
89 | #define FCP_PTA_SIMPLE 0 /* simple task attribute */ | |
90 | #define FCP_PTA_HEADQ 1 /* head of queue task attribute */ | |
91 | #define FCP_PTA_ORDERED 2 /* ordered task attribute */ | |
6efb3c0a | 92 | #define FCP_PTA_ACA 4 /* auto. contingent allegiance */ |
2d70c103 NB |
93 | #define FCP_PTA_MASK 7 /* mask for task attribute field */ |
94 | #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */ | |
95 | #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */ | |
96 | ||
97 | /* | |
98 | * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which | |
99 | * must be called under HW lock and could unlock/lock it inside. | |
100 | * It isn't an issue, since in the current implementation on the time when | |
101 | * those functions are called: | |
102 | * | |
103 | * - Either context is IRQ and only IRQ handler can modify HW data, | |
104 | * including rings related fields, | |
105 | * | |
106 | * - Or access to target mode variables from struct qla_tgt doesn't | |
107 | * cross those functions boundaries, except tgt_stop, which | |
108 | * additionally protected by irq_cmd_count. | |
109 | */ | |
110 | /* Predefs for callbacks handed to qla2xxx LLD */ | |
111 | static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha, | |
2f424b9b | 112 | struct atio_from_isp *pkt, uint8_t); |
2d70c103 | 113 | static void qlt_response_pkt(struct scsi_qla_host *ha, response_t *pkt); |
5d964837 | 114 | static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, |
2d70c103 NB |
115 | int fn, void *iocb, int flags); |
116 | static void qlt_send_term_exchange(struct scsi_qla_host *ha, struct qla_tgt_cmd | |
a07100e0 | 117 | *cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort); |
b6a029e1 AE |
118 | static void qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, |
119 | struct qla_tgt_cmd *cmd); | |
33e79977 QT |
120 | static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, |
121 | struct atio_from_isp *atio, uint16_t status, int qfull); | |
55a9066f | 122 | static void qlt_disable_vha(struct scsi_qla_host *vha); |
b2032fd5 | 123 | static void qlt_clear_tgt_db(struct qla_tgt *tgt); |
a6ca8878 AP |
124 | static void qlt_send_notify_ack(struct scsi_qla_host *vha, |
125 | struct imm_ntfy_from_isp *ntfy, | |
126 | uint32_t add_flags, uint16_t resp_code, int resp_code_valid, | |
127 | uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan); | |
b7bd104e AP |
128 | static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, |
129 | struct imm_ntfy_from_isp *imm, int ha_locked); | |
726b8548 QT |
130 | static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha, |
131 | fc_port_t *fcport, bool local); | |
132 | void qlt_unreg_sess(struct fc_port *sess); | |
8f6fc8d4 QT |
133 | static void qlt_24xx_handle_abts(struct scsi_qla_host *, |
134 | struct abts_recv_from_24xx *); | |
135 | ||
2d70c103 NB |
136 | /* |
137 | * Global Variables | |
138 | */ | |
2d70c103 | 139 | static struct kmem_cache *qla_tgt_mgmt_cmd_cachep; |
b7bd104e | 140 | static struct kmem_cache *qla_tgt_plogi_cachep; |
2d70c103 NB |
141 | static mempool_t *qla_tgt_mgmt_cmd_mempool; |
142 | static struct workqueue_struct *qla_tgt_wq; | |
143 | static DEFINE_MUTEX(qla_tgt_mutex); | |
144 | static LIST_HEAD(qla_tgt_glist); | |
145 | ||
be25152c QT |
146 | static const char *prot_op_str(u32 prot_op) |
147 | { | |
148 | switch (prot_op) { | |
149 | case TARGET_PROT_NORMAL: return "NORMAL"; | |
150 | case TARGET_PROT_DIN_INSERT: return "DIN_INSERT"; | |
151 | case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT"; | |
152 | case TARGET_PROT_DIN_STRIP: return "DIN_STRIP"; | |
153 | case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP"; | |
154 | case TARGET_PROT_DIN_PASS: return "DIN_PASS"; | |
155 | case TARGET_PROT_DOUT_PASS: return "DOUT_PASS"; | |
156 | default: return "UNKNOWN"; | |
157 | } | |
158 | } | |
159 | ||
df673274 AP |
160 | /* This API intentionally takes dest as a parameter, rather than returning |
161 | * int value to avoid caller forgetting to issue wmb() after the store */ | |
162 | void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest) | |
163 | { | |
164 | scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev); | |
165 | *dest = atomic_inc_return(&base_vha->generation_tick); | |
166 | /* memory barrier */ | |
167 | wmb(); | |
168 | } | |
169 | ||
2d70c103 NB |
170 | /* Might release hw lock, then reaquire!! */ |
171 | static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked) | |
172 | { | |
173 | /* Send marker if required */ | |
174 | if (unlikely(vha->marker_needed != 0)) { | |
175 | int rc = qla2x00_issue_marker(vha, vha_locked); | |
176 | if (rc != QLA_SUCCESS) { | |
177 | ql_dbg(ql_dbg_tgt, vha, 0xe03d, | |
178 | "qla_target(%d): issue_marker() failed\n", | |
179 | vha->vp_idx); | |
180 | } | |
181 | return rc; | |
182 | } | |
183 | return QLA_SUCCESS; | |
184 | } | |
185 | ||
186 | static inline | |
187 | struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha, | |
188 | uint8_t *d_id) | |
189 | { | |
482c9dc7 QT |
190 | struct scsi_qla_host *host; |
191 | uint32_t key = 0; | |
2d70c103 | 192 | |
482c9dc7 QT |
193 | if ((vha->d_id.b.area == d_id[1]) && (vha->d_id.b.domain == d_id[0]) && |
194 | (vha->d_id.b.al_pa == d_id[2])) | |
2d70c103 NB |
195 | return vha; |
196 | ||
482c9dc7 QT |
197 | key = (uint32_t)d_id[0] << 16; |
198 | key |= (uint32_t)d_id[1] << 8; | |
199 | key |= (uint32_t)d_id[2]; | |
2d70c103 | 200 | |
482c9dc7 QT |
201 | host = btree_lookup32(&vha->hw->tgt.host_map, key); |
202 | if (!host) | |
203 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, | |
204 | "Unable to find host %06x\n", key); | |
205 | ||
206 | return host; | |
2d70c103 NB |
207 | } |
208 | ||
209 | static inline | |
210 | struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha, | |
211 | uint16_t vp_idx) | |
212 | { | |
213 | struct qla_hw_data *ha = vha->hw; | |
214 | ||
215 | if (vha->vp_idx == vp_idx) | |
216 | return vha; | |
217 | ||
218 | BUG_ON(ha->tgt.tgt_vp_map == NULL); | |
219 | if (likely(test_bit(vp_idx, ha->vp_idx_map))) | |
220 | return ha->tgt.tgt_vp_map[vp_idx].vha; | |
221 | ||
222 | return NULL; | |
223 | } | |
224 | ||
33e79977 QT |
225 | static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha) |
226 | { | |
227 | unsigned long flags; | |
228 | ||
229 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
230 | ||
231 | vha->hw->tgt.num_pend_cmds++; | |
fc90adaf JC |
232 | if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds) |
233 | vha->qla_stats.stat_max_pend_cmds = | |
33e79977 QT |
234 | vha->hw->tgt.num_pend_cmds; |
235 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
236 | } | |
237 | static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha) | |
238 | { | |
239 | unsigned long flags; | |
240 | ||
241 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
242 | vha->hw->tgt.num_pend_cmds--; | |
243 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
244 | } | |
245 | ||
41dc529a QT |
246 | |
247 | static void qlt_queue_unknown_atio(scsi_qla_host_t *vha, | |
248 | struct atio_from_isp *atio, uint8_t ha_locked) | |
249 | { | |
250 | struct qla_tgt_sess_op *u; | |
251 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
252 | unsigned long flags; | |
253 | ||
254 | if (tgt->tgt_stop) { | |
255 | ql_dbg(ql_dbg_async, vha, 0xffff, | |
256 | "qla_target(%d): dropping unknown ATIO_TYPE7, " | |
257 | "because tgt is being stopped", vha->vp_idx); | |
258 | goto out_term; | |
259 | } | |
260 | ||
261 | u = kzalloc(sizeof(*u), GFP_ATOMIC); | |
262 | if (u == NULL) { | |
263 | ql_dbg(ql_dbg_async, vha, 0xffff, | |
264 | "Alloc of struct unknown_atio (size %zd) failed", sizeof(*u)); | |
265 | /* It should be harmless and on the next retry should work well */ | |
266 | goto out_term; | |
267 | } | |
268 | ||
269 | u->vha = vha; | |
270 | memcpy(&u->atio, atio, sizeof(*atio)); | |
271 | INIT_LIST_HEAD(&u->cmd_list); | |
272 | ||
273 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
274 | list_add_tail(&u->cmd_list, &vha->unknown_atio_list); | |
275 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
276 | ||
277 | schedule_delayed_work(&vha->unknown_atio_work, 1); | |
278 | ||
279 | out: | |
280 | return; | |
281 | ||
282 | out_term: | |
283 | qlt_send_term_exchange(vha, NULL, atio, ha_locked, 0); | |
284 | goto out; | |
285 | } | |
286 | ||
287 | static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha, | |
288 | uint8_t ha_locked) | |
289 | { | |
290 | struct qla_tgt_sess_op *u, *t; | |
291 | scsi_qla_host_t *host; | |
292 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
293 | unsigned long flags; | |
294 | uint8_t queued = 0; | |
295 | ||
296 | list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) { | |
297 | if (u->aborted) { | |
298 | ql_dbg(ql_dbg_async, vha, 0xffff, | |
299 | "Freeing unknown %s %p, because of Abort", | |
300 | "ATIO_TYPE7", u); | |
301 | qlt_send_term_exchange(vha, NULL, &u->atio, | |
302 | ha_locked, 0); | |
303 | goto abort; | |
304 | } | |
305 | ||
306 | host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id); | |
307 | if (host != NULL) { | |
308 | ql_dbg(ql_dbg_async, vha, 0xffff, | |
309 | "Requeuing unknown ATIO_TYPE7 %p", u); | |
310 | qlt_24xx_atio_pkt(host, &u->atio, ha_locked); | |
311 | } else if (tgt->tgt_stop) { | |
312 | ql_dbg(ql_dbg_async, vha, 0xffff, | |
313 | "Freeing unknown %s %p, because tgt is being stopped", | |
314 | "ATIO_TYPE7", u); | |
315 | qlt_send_term_exchange(vha, NULL, &u->atio, | |
316 | ha_locked, 0); | |
317 | } else { | |
318 | ql_dbg(ql_dbg_async, vha, 0xffff, | |
319 | "u %p, vha %p, host %p, sched again..", u, | |
320 | vha, host); | |
321 | if (!queued) { | |
322 | queued = 1; | |
323 | schedule_delayed_work(&vha->unknown_atio_work, | |
324 | 1); | |
325 | } | |
326 | continue; | |
327 | } | |
328 | ||
329 | abort: | |
330 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
331 | list_del(&u->cmd_list); | |
332 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
333 | kfree(u); | |
334 | } | |
335 | } | |
336 | ||
337 | void qlt_unknown_atio_work_fn(struct work_struct *work) | |
338 | { | |
339 | struct scsi_qla_host *vha = container_of(to_delayed_work(work), | |
340 | struct scsi_qla_host, unknown_atio_work); | |
341 | ||
342 | qlt_try_to_dequeue_unknown_atios(vha, 0); | |
343 | } | |
344 | ||
3bb67df5 | 345 | static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, |
2f424b9b | 346 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 | 347 | { |
f83adb61 QT |
348 | ql_dbg(ql_dbg_tgt, vha, 0xe072, |
349 | "%s: qla_target(%d): type %x ox_id %04x\n", | |
350 | __func__, vha->vp_idx, atio->u.raw.entry_type, | |
351 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
352 | ||
2d70c103 NB |
353 | switch (atio->u.raw.entry_type) { |
354 | case ATIO_TYPE7: | |
355 | { | |
356 | struct scsi_qla_host *host = qlt_find_host_by_d_id(vha, | |
357 | atio->u.isp24.fcp_hdr.d_id); | |
358 | if (unlikely(NULL == host)) { | |
359 | ql_dbg(ql_dbg_tgt, vha, 0xe03e, | |
360 | "qla_target(%d): Received ATIO_TYPE7 " | |
361 | "with unknown d_id %x:%x:%x\n", vha->vp_idx, | |
362 | atio->u.isp24.fcp_hdr.d_id[0], | |
363 | atio->u.isp24.fcp_hdr.d_id[1], | |
364 | atio->u.isp24.fcp_hdr.d_id[2]); | |
41dc529a QT |
365 | |
366 | ||
367 | qlt_queue_unknown_atio(vha, atio, ha_locked); | |
2d70c103 NB |
368 | break; |
369 | } | |
41dc529a QT |
370 | if (unlikely(!list_empty(&vha->unknown_atio_list))) |
371 | qlt_try_to_dequeue_unknown_atios(vha, ha_locked); | |
372 | ||
2f424b9b | 373 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
374 | break; |
375 | } | |
376 | ||
377 | case IMMED_NOTIFY_TYPE: | |
378 | { | |
379 | struct scsi_qla_host *host = vha; | |
380 | struct imm_ntfy_from_isp *entry = | |
381 | (struct imm_ntfy_from_isp *)atio; | |
382 | ||
383 | if ((entry->u.isp24.vp_index != 0xFF) && | |
384 | (entry->u.isp24.nport_handle != 0xFFFF)) { | |
385 | host = qlt_find_host_by_vp_idx(vha, | |
386 | entry->u.isp24.vp_index); | |
387 | if (unlikely(!host)) { | |
388 | ql_dbg(ql_dbg_tgt, vha, 0xe03f, | |
389 | "qla_target(%d): Received " | |
390 | "ATIO (IMMED_NOTIFY_TYPE) " | |
391 | "with unknown vp_index %d\n", | |
392 | vha->vp_idx, entry->u.isp24.vp_index); | |
393 | break; | |
394 | } | |
395 | } | |
2f424b9b | 396 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
397 | break; |
398 | } | |
399 | ||
41dc529a QT |
400 | case VP_RPT_ID_IOCB_TYPE: |
401 | qla24xx_report_id_acquisition(vha, | |
402 | (struct vp_rpt_id_entry_24xx *)atio); | |
403 | break; | |
404 | ||
405 | case ABTS_RECV_24XX: | |
406 | { | |
407 | struct abts_recv_from_24xx *entry = | |
408 | (struct abts_recv_from_24xx *)atio; | |
409 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
410 | entry->vp_index); | |
8f6fc8d4 QT |
411 | unsigned long flags; |
412 | ||
41dc529a QT |
413 | if (unlikely(!host)) { |
414 | ql_dbg(ql_dbg_tgt, vha, 0xffff, | |
415 | "qla_target(%d): Response pkt (ABTS_RECV_24XX) " | |
416 | "received, with unknown vp_index %d\n", | |
417 | vha->vp_idx, entry->vp_index); | |
418 | break; | |
419 | } | |
8f6fc8d4 QT |
420 | if (!ha_locked) |
421 | spin_lock_irqsave(&host->hw->hardware_lock, flags); | |
422 | qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio); | |
423 | if (!ha_locked) | |
424 | spin_unlock_irqrestore(&host->hw->hardware_lock, flags); | |
41dc529a | 425 | break; |
41dc529a QT |
426 | } |
427 | ||
428 | /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */ | |
429 | ||
2d70c103 NB |
430 | default: |
431 | ql_dbg(ql_dbg_tgt, vha, 0xe040, | |
432 | "qla_target(%d): Received unknown ATIO atio " | |
433 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
434 | break; | |
435 | } | |
436 | ||
3bb67df5 | 437 | return false; |
2d70c103 NB |
438 | } |
439 | ||
440 | void qlt_response_pkt_all_vps(struct scsi_qla_host *vha, response_t *pkt) | |
441 | { | |
442 | switch (pkt->entry_type) { | |
f83adb61 QT |
443 | case CTIO_CRC2: |
444 | ql_dbg(ql_dbg_tgt, vha, 0xe073, | |
445 | "qla_target(%d):%s: CRC2 Response pkt\n", | |
446 | vha->vp_idx, __func__); | |
2d70c103 NB |
447 | case CTIO_TYPE7: |
448 | { | |
449 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
450 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
451 | entry->vp_index); | |
452 | if (unlikely(!host)) { | |
453 | ql_dbg(ql_dbg_tgt, vha, 0xe041, | |
454 | "qla_target(%d): Response pkt (CTIO_TYPE7) " | |
455 | "received, with unknown vp_index %d\n", | |
456 | vha->vp_idx, entry->vp_index); | |
457 | break; | |
458 | } | |
459 | qlt_response_pkt(host, pkt); | |
460 | break; | |
461 | } | |
462 | ||
463 | case IMMED_NOTIFY_TYPE: | |
464 | { | |
465 | struct scsi_qla_host *host = vha; | |
466 | struct imm_ntfy_from_isp *entry = | |
467 | (struct imm_ntfy_from_isp *)pkt; | |
468 | ||
469 | host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index); | |
470 | if (unlikely(!host)) { | |
471 | ql_dbg(ql_dbg_tgt, vha, 0xe042, | |
472 | "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) " | |
473 | "received, with unknown vp_index %d\n", | |
474 | vha->vp_idx, entry->u.isp24.vp_index); | |
475 | break; | |
476 | } | |
477 | qlt_response_pkt(host, pkt); | |
478 | break; | |
479 | } | |
480 | ||
481 | case NOTIFY_ACK_TYPE: | |
482 | { | |
483 | struct scsi_qla_host *host = vha; | |
484 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
485 | ||
486 | if (0xFF != entry->u.isp24.vp_index) { | |
487 | host = qlt_find_host_by_vp_idx(vha, | |
488 | entry->u.isp24.vp_index); | |
489 | if (unlikely(!host)) { | |
490 | ql_dbg(ql_dbg_tgt, vha, 0xe043, | |
491 | "qla_target(%d): Response " | |
492 | "pkt (NOTIFY_ACK_TYPE) " | |
493 | "received, with unknown " | |
494 | "vp_index %d\n", vha->vp_idx, | |
495 | entry->u.isp24.vp_index); | |
496 | break; | |
497 | } | |
498 | } | |
499 | qlt_response_pkt(host, pkt); | |
500 | break; | |
501 | } | |
502 | ||
503 | case ABTS_RECV_24XX: | |
504 | { | |
505 | struct abts_recv_from_24xx *entry = | |
506 | (struct abts_recv_from_24xx *)pkt; | |
507 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
508 | entry->vp_index); | |
509 | if (unlikely(!host)) { | |
510 | ql_dbg(ql_dbg_tgt, vha, 0xe044, | |
511 | "qla_target(%d): Response pkt " | |
512 | "(ABTS_RECV_24XX) received, with unknown " | |
513 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
514 | break; | |
515 | } | |
516 | qlt_response_pkt(host, pkt); | |
517 | break; | |
518 | } | |
519 | ||
520 | case ABTS_RESP_24XX: | |
521 | { | |
522 | struct abts_resp_to_24xx *entry = | |
523 | (struct abts_resp_to_24xx *)pkt; | |
524 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
525 | entry->vp_index); | |
526 | if (unlikely(!host)) { | |
527 | ql_dbg(ql_dbg_tgt, vha, 0xe045, | |
528 | "qla_target(%d): Response pkt " | |
529 | "(ABTS_RECV_24XX) received, with unknown " | |
530 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
531 | break; | |
532 | } | |
533 | qlt_response_pkt(host, pkt); | |
534 | break; | |
535 | } | |
536 | ||
537 | default: | |
538 | qlt_response_pkt(vha, pkt); | |
539 | break; | |
540 | } | |
541 | ||
542 | } | |
543 | ||
b7bd104e AP |
544 | /* |
545 | * All qlt_plogi_ack_t operations are protected by hardware_lock | |
546 | */ | |
726b8548 QT |
547 | static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport, |
548 | struct imm_ntfy_from_isp *ntfy, int type) | |
549 | { | |
550 | struct qla_work_evt *e; | |
551 | e = qla2x00_alloc_work(vha, QLA_EVT_NACK); | |
552 | if (!e) | |
553 | return QLA_FUNCTION_FAILED; | |
554 | ||
555 | e->u.nack.fcport = fcport; | |
556 | e->u.nack.type = type; | |
557 | memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp)); | |
558 | return qla2x00_post_work(vha, e); | |
559 | } | |
560 | ||
561 | static | |
25ff6af1 | 562 | void qla2x00_async_nack_sp_done(void *s, int res) |
726b8548 | 563 | { |
726b8548 | 564 | struct srb *sp = (struct srb *)s; |
25ff6af1 | 565 | struct scsi_qla_host *vha = sp->vha; |
726b8548 QT |
566 | unsigned long flags; |
567 | ||
568 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
569 | "Async done-%s res %x %8phC type %d\n", | |
570 | sp->name, res, sp->fcport->port_name, sp->type); | |
571 | ||
572 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
573 | sp->fcport->flags &= ~FCF_ASYNC_SENT; | |
574 | sp->fcport->chip_reset = vha->hw->chip_reset; | |
575 | ||
576 | switch (sp->type) { | |
577 | case SRB_NACK_PLOGI: | |
578 | sp->fcport->login_gen++; | |
579 | sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP; | |
580 | sp->fcport->logout_on_delete = 1; | |
5b33469a | 581 | sp->fcport->plogi_nack_done_deadline = jiffies + HZ; |
726b8548 QT |
582 | break; |
583 | ||
584 | case SRB_NACK_PRLI: | |
585 | sp->fcport->fw_login_state = DSC_LS_PRLI_COMP; | |
586 | sp->fcport->deleted = 0; | |
587 | ||
588 | if (!sp->fcport->login_succ && | |
589 | !IS_SW_RESV_ADDR(sp->fcport->d_id)) { | |
590 | sp->fcport->login_succ = 1; | |
591 | ||
592 | vha->fcport_count++; | |
593 | ||
594 | if (!IS_IIDMA_CAPABLE(vha->hw) || | |
595 | !vha->hw->flags.gpsc_supported) { | |
596 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
597 | "%s %d %8phC post upd_fcport fcp_cnt %d\n", | |
598 | __func__, __LINE__, | |
599 | sp->fcport->port_name, | |
600 | vha->fcport_count); | |
601 | ||
602 | qla24xx_post_upd_fcport_work(vha, sp->fcport); | |
603 | } else { | |
604 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
605 | "%s %d %8phC post gpsc fcp_cnt %d\n", | |
606 | __func__, __LINE__, | |
607 | sp->fcport->port_name, | |
608 | vha->fcport_count); | |
609 | ||
610 | qla24xx_post_gpsc_work(vha, sp->fcport); | |
611 | } | |
612 | } | |
613 | break; | |
614 | ||
615 | case SRB_NACK_LOGO: | |
616 | sp->fcport->login_gen++; | |
617 | sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
618 | qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE); | |
619 | break; | |
620 | } | |
621 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
622 | ||
25ff6af1 | 623 | sp->free(sp); |
726b8548 QT |
624 | } |
625 | ||
626 | int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport, | |
627 | struct imm_ntfy_from_isp *ntfy, int type) | |
628 | { | |
629 | int rval = QLA_FUNCTION_FAILED; | |
630 | srb_t *sp; | |
631 | char *c = NULL; | |
632 | ||
633 | fcport->flags |= FCF_ASYNC_SENT; | |
634 | switch (type) { | |
635 | case SRB_NACK_PLOGI: | |
636 | fcport->fw_login_state = DSC_LS_PLOGI_PEND; | |
637 | c = "PLOGI"; | |
638 | break; | |
639 | case SRB_NACK_PRLI: | |
640 | fcport->fw_login_state = DSC_LS_PRLI_PEND; | |
ec7193e2 | 641 | fcport->deleted = 0; |
726b8548 QT |
642 | c = "PRLI"; |
643 | break; | |
644 | case SRB_NACK_LOGO: | |
645 | fcport->fw_login_state = DSC_LS_LOGO_PEND; | |
646 | c = "LOGO"; | |
647 | break; | |
648 | } | |
649 | ||
650 | sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); | |
651 | if (!sp) | |
652 | goto done; | |
653 | ||
654 | sp->type = type; | |
655 | sp->name = "nack"; | |
656 | ||
657 | qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2); | |
658 | ||
659 | sp->u.iocb_cmd.u.nack.ntfy = ntfy; | |
660 | ||
661 | sp->done = qla2x00_async_nack_sp_done; | |
662 | ||
663 | rval = qla2x00_start_sp(sp); | |
664 | if (rval != QLA_SUCCESS) | |
665 | goto done_free_sp; | |
666 | ||
667 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
668 | "Async-%s %8phC hndl %x %s\n", | |
669 | sp->name, fcport->port_name, sp->handle, c); | |
670 | ||
671 | return rval; | |
672 | ||
673 | done_free_sp: | |
25ff6af1 | 674 | sp->free(sp); |
726b8548 QT |
675 | done: |
676 | fcport->flags &= ~FCF_ASYNC_SENT; | |
677 | return rval; | |
678 | } | |
679 | ||
680 | void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e) | |
681 | { | |
682 | fc_port_t *t; | |
683 | unsigned long flags; | |
684 | ||
685 | switch (e->u.nack.type) { | |
686 | case SRB_NACK_PRLI: | |
687 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
688 | t = qlt_create_sess(vha, e->u.nack.fcport, 0); | |
689 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
690 | if (t) { | |
691 | ql_log(ql_log_info, vha, 0xffff, | |
692 | "%s create sess success %p", __func__, t); | |
693 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
694 | /* create sess has an extra kref */ | |
695 | vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport); | |
696 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
697 | } | |
698 | break; | |
699 | } | |
700 | qla24xx_async_notify_ack(vha, e->u.nack.fcport, | |
701 | (struct imm_ntfy_from_isp*)e->u.nack.iocb, e->u.nack.type); | |
702 | } | |
703 | ||
704 | void qla24xx_delete_sess_fn(struct work_struct *work) | |
705 | { | |
706 | fc_port_t *fcport = container_of(work, struct fc_port, del_work); | |
707 | struct qla_hw_data *ha = fcport->vha->hw; | |
708 | unsigned long flags; | |
709 | ||
710 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
711 | ||
712 | if (fcport->se_sess) { | |
713 | ha->tgt.tgt_ops->shutdown_sess(fcport); | |
714 | ha->tgt.tgt_ops->put_sess(fcport); | |
715 | } else { | |
716 | qlt_unreg_sess(fcport); | |
717 | } | |
718 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
719 | } | |
720 | ||
721 | /* | |
722 | * Called from qla2x00_reg_remote_port() | |
723 | */ | |
724 | void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) | |
725 | { | |
726 | struct qla_hw_data *ha = vha->hw; | |
727 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
728 | struct fc_port *sess = fcport; | |
729 | unsigned long flags; | |
730 | ||
731 | if (!vha->hw->tgt.tgt_ops) | |
732 | return; | |
733 | ||
734 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
735 | if (tgt->tgt_stop) { | |
736 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
737 | return; | |
738 | } | |
739 | ||
740 | if (fcport->disc_state == DSC_DELETE_PEND) { | |
741 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
742 | return; | |
743 | } | |
744 | ||
745 | if (!sess->se_sess) { | |
746 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
747 | ||
748 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
749 | sess = qlt_create_sess(vha, fcport, false); | |
750 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
751 | ||
752 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
753 | } else { | |
754 | if (fcport->fw_login_state == DSC_LS_PRLI_COMP) { | |
755 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
756 | return; | |
757 | } | |
758 | ||
759 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
760 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
761 | "%s: kref_get fail sess %8phC \n", | |
762 | __func__, sess->port_name); | |
763 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
764 | return; | |
765 | } | |
766 | ||
767 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c, | |
768 | "qla_target(%u): %ssession for port %8phC " | |
769 | "(loop ID %d) reappeared\n", vha->vp_idx, | |
770 | sess->local ? "local " : "", sess->port_name, sess->loop_id); | |
771 | ||
772 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007, | |
773 | "Reappeared sess %p\n", sess); | |
774 | ||
775 | ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, | |
776 | fcport->loop_id, | |
777 | (fcport->flags & FCF_CONF_COMP_SUPPORTED)); | |
778 | } | |
779 | ||
780 | if (sess && sess->local) { | |
781 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d, | |
782 | "qla_target(%u): local session for " | |
783 | "port %8phC (loop ID %d) became global\n", vha->vp_idx, | |
784 | fcport->port_name, sess->loop_id); | |
785 | sess->local = 0; | |
786 | } | |
787 | ha->tgt.tgt_ops->put_sess(sess); | |
788 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
789 | } | |
b7bd104e AP |
790 | |
791 | /* | |
792 | * This is a zero-base ref-counting solution, since hardware_lock | |
793 | * guarantees that ref_count is not modified concurrently. | |
794 | * Upon successful return content of iocb is undefined | |
795 | */ | |
5d964837 | 796 | static struct qlt_plogi_ack_t * |
b7bd104e AP |
797 | qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id, |
798 | struct imm_ntfy_from_isp *iocb) | |
799 | { | |
5d964837 | 800 | struct qlt_plogi_ack_t *pla; |
b7bd104e AP |
801 | |
802 | list_for_each_entry(pla, &vha->plogi_ack_list, list) { | |
803 | if (pla->id.b24 == id->b24) { | |
804 | qlt_send_term_imm_notif(vha, &pla->iocb, 1); | |
5d964837 | 805 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
806 | return pla; |
807 | } | |
808 | } | |
809 | ||
810 | pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC); | |
811 | if (!pla) { | |
812 | ql_dbg(ql_dbg_async, vha, 0x5088, | |
813 | "qla_target(%d): Allocation of plogi_ack failed\n", | |
814 | vha->vp_idx); | |
815 | return NULL; | |
816 | } | |
817 | ||
5d964837 | 818 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
819 | pla->id = *id; |
820 | list_add_tail(&pla->list, &vha->plogi_ack_list); | |
821 | ||
822 | return pla; | |
823 | } | |
824 | ||
726b8548 | 825 | void qlt_plogi_ack_unref(struct scsi_qla_host *vha, |
5d964837 | 826 | struct qlt_plogi_ack_t *pla) |
b7bd104e | 827 | { |
5d964837 | 828 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
726b8548 QT |
829 | port_id_t port_id; |
830 | uint16_t loop_id; | |
831 | fc_port_t *fcport = pla->fcport; | |
832 | ||
b7bd104e AP |
833 | BUG_ON(!pla->ref_count); |
834 | pla->ref_count--; | |
835 | ||
836 | if (pla->ref_count) | |
837 | return; | |
838 | ||
726b8548 | 839 | ql_dbg(ql_dbg_disc, vha, 0x5089, |
b7bd104e | 840 | "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x" |
5d964837 QT |
841 | " exch %#x ox_id %#x\n", iocb->u.isp24.port_name, |
842 | iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1], | |
843 | iocb->u.isp24.port_id[0], | |
844 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
845 | iocb->u.isp24.exchange_address, iocb->ox_id); | |
726b8548 QT |
846 | |
847 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
848 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
849 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
850 | port_id.b.rsvd_1 = 0; | |
851 | ||
852 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
853 | ||
854 | fcport->loop_id = loop_id; | |
855 | fcport->d_id = port_id; | |
856 | qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI); | |
857 | ||
858 | list_for_each_entry(fcport, &vha->vp_fcports, list) { | |
859 | if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla) | |
860 | fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; | |
861 | if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla) | |
862 | fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; | |
863 | } | |
b7bd104e AP |
864 | |
865 | list_del(&pla->list); | |
866 | kmem_cache_free(qla_tgt_plogi_cachep, pla); | |
867 | } | |
868 | ||
726b8548 | 869 | void |
5d964837 QT |
870 | qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla, |
871 | struct fc_port *sess, enum qlt_plogi_link_t link) | |
b7bd104e | 872 | { |
5d964837 | 873 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
b7bd104e AP |
874 | /* Inc ref_count first because link might already be pointing at pla */ |
875 | pla->ref_count++; | |
876 | ||
726b8548 QT |
877 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097, |
878 | "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC" | |
879 | " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n", | |
880 | sess, link, sess->port_name, | |
881 | iocb->u.isp24.port_name, iocb->u.isp24.port_id[2], | |
882 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
883 | pla->ref_count, pla, link); | |
884 | ||
b7bd104e AP |
885 | if (sess->plogi_link[link]) |
886 | qlt_plogi_ack_unref(vha, sess->plogi_link[link]); | |
887 | ||
726b8548 QT |
888 | if (link == QLT_PLOGI_LINK_SAME_WWN) |
889 | pla->fcport = sess; | |
b7bd104e AP |
890 | |
891 | sess->plogi_link[link] = pla; | |
892 | } | |
893 | ||
71cdc079 AP |
894 | typedef struct { |
895 | /* These fields must be initialized by the caller */ | |
896 | port_id_t id; | |
897 | /* | |
898 | * number of cmds dropped while we were waiting for | |
899 | * initiator to ack LOGO initialize to 1 if LOGO is | |
900 | * triggered by a command, otherwise, to 0 | |
901 | */ | |
902 | int cmd_count; | |
903 | ||
904 | /* These fields are used by callee */ | |
905 | struct list_head list; | |
906 | } qlt_port_logo_t; | |
907 | ||
908 | static void | |
909 | qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo) | |
910 | { | |
911 | qlt_port_logo_t *tmp; | |
912 | int res; | |
913 | ||
914 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
915 | ||
916 | list_for_each_entry(tmp, &vha->logo_list, list) { | |
917 | if (tmp->id.b24 == logo->id.b24) { | |
918 | tmp->cmd_count += logo->cmd_count; | |
919 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
920 | return; | |
921 | } | |
922 | } | |
923 | ||
924 | list_add_tail(&logo->list, &vha->logo_list); | |
925 | ||
926 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
927 | ||
928 | res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id); | |
929 | ||
930 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
931 | list_del(&logo->list); | |
932 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
933 | ||
b7bd104e AP |
934 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098, |
935 | "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n", | |
936 | logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa, | |
937 | logo->cmd_count, res); | |
71cdc079 AP |
938 | } |
939 | ||
2d70c103 NB |
940 | static void qlt_free_session_done(struct work_struct *work) |
941 | { | |
5d964837 | 942 | struct fc_port *sess = container_of(work, struct fc_port, |
2d70c103 NB |
943 | free_work); |
944 | struct qla_tgt *tgt = sess->tgt; | |
945 | struct scsi_qla_host *vha = sess->vha; | |
946 | struct qla_hw_data *ha = vha->hw; | |
a6ca8878 AP |
947 | unsigned long flags; |
948 | bool logout_started = false; | |
726b8548 | 949 | struct event_arg ea; |
41dc529a | 950 | scsi_qla_host_t *base_vha; |
a6ca8878 AP |
951 | |
952 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084, | |
953 | "%s: se_sess %p / sess %p from port %8phC loop_id %#04x" | |
b7bd104e | 954 | " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n", |
a6ca8878 | 955 | __func__, sess->se_sess, sess, sess->port_name, sess->loop_id, |
37cacc0a | 956 | sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa, |
a6ca8878 | 957 | sess->logout_on_delete, sess->keep_nport_handle, |
b7bd104e | 958 | sess->send_els_logo); |
2d70c103 | 959 | |
a6ca8878 | 960 | |
726b8548 | 961 | if (!IS_SW_RESV_ADDR(sess->d_id)) { |
41dc529a QT |
962 | if (sess->send_els_logo) { |
963 | qlt_port_logo_t logo; | |
71cdc079 | 964 | |
41dc529a QT |
965 | logo.id = sess->d_id; |
966 | logo.cmd_count = 0; | |
967 | qlt_send_first_logo(vha, &logo); | |
968 | } | |
969 | ||
970 | if (sess->logout_on_delete) { | |
971 | int rc; | |
972 | ||
973 | rc = qla2x00_post_async_logout_work(vha, sess, NULL); | |
974 | if (rc != QLA_SUCCESS) | |
975 | ql_log(ql_log_warn, vha, 0xf085, | |
976 | "Schedule logo failed sess %p rc %d\n", | |
977 | sess, rc); | |
978 | else | |
979 | logout_started = true; | |
980 | } | |
726b8548 | 981 | } |
a6ca8878 | 982 | |
2d70c103 NB |
983 | /* |
984 | * Release the target session for FC Nexus from fabric module code. | |
985 | */ | |
986 | if (sess->se_sess != NULL) | |
987 | ha->tgt.tgt_ops->free_session(sess); | |
988 | ||
a6ca8878 AP |
989 | if (logout_started) { |
990 | bool traced = false; | |
991 | ||
992 | while (!ACCESS_ONCE(sess->logout_completed)) { | |
993 | if (!traced) { | |
994 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086, | |
995 | "%s: waiting for sess %p logout\n", | |
996 | __func__, sess); | |
997 | traced = true; | |
998 | } | |
999 | msleep(100); | |
1000 | } | |
1001 | ||
726b8548 | 1002 | ql_dbg(ql_dbg_disc, vha, 0xf087, |
41dc529a QT |
1003 | "%s: sess %p logout completed\n",__func__, sess); |
1004 | } | |
1005 | ||
1006 | if (sess->logo_ack_needed) { | |
1007 | sess->logo_ack_needed = 0; | |
1008 | qla24xx_async_notify_ack(vha, sess, | |
1009 | (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO); | |
a6ca8878 AP |
1010 | } |
1011 | ||
726b8548 QT |
1012 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1013 | if (sess->se_sess) { | |
1014 | sess->se_sess = NULL; | |
1015 | if (tgt && !IS_SW_RESV_ADDR(sess->d_id)) | |
1016 | tgt->sess_count--; | |
1017 | } | |
1018 | ||
1019 | sess->disc_state = DSC_DELETED; | |
1020 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1021 | sess->deleted = QLA_SESS_DELETED; | |
1022 | sess->login_retry = vha->hw->login_retry_count; | |
1023 | ||
1024 | if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) { | |
1025 | vha->fcport_count--; | |
1026 | sess->login_succ = 0; | |
1027 | } | |
1028 | ||
1029 | if (sess->chip_reset != sess->vha->hw->chip_reset) | |
1030 | qla2x00_clear_loop_id(sess); | |
1031 | ||
1032 | if (sess->conflict) { | |
1033 | sess->conflict->login_pause = 0; | |
1034 | sess->conflict = NULL; | |
1035 | if (!test_bit(UNLOADING, &vha->dpc_flags)) | |
1036 | set_bit(RELOGIN_NEEDED, &vha->dpc_flags); | |
1037 | } | |
1038 | ||
b7bd104e | 1039 | { |
5d964837 | 1040 | struct qlt_plogi_ack_t *own = |
b7bd104e | 1041 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]; |
5d964837 | 1042 | struct qlt_plogi_ack_t *con = |
b7bd104e | 1043 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]; |
5d964837 | 1044 | struct imm_ntfy_from_isp *iocb; |
b7bd104e AP |
1045 | |
1046 | if (con) { | |
5d964837 | 1047 | iocb = &con->iocb; |
b7bd104e | 1048 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099, |
5d964837 QT |
1049 | "se_sess %p / sess %p port %8phC is gone," |
1050 | " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n", | |
1051 | sess->se_sess, sess, sess->port_name, | |
1052 | own ? "releasing own PLOGI" : "no own PLOGI pending", | |
1053 | own ? own->ref_count : -1, | |
1054 | iocb->u.isp24.port_name, con->ref_count); | |
b7bd104e | 1055 | qlt_plogi_ack_unref(vha, con); |
726b8548 | 1056 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; |
b7bd104e AP |
1057 | } else { |
1058 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a, | |
1059 | "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n", | |
1060 | sess->se_sess, sess, sess->port_name, | |
1061 | own ? "releasing own PLOGI" : | |
1062 | "no own PLOGI pending", | |
1063 | own ? own->ref_count : -1); | |
1064 | } | |
1065 | ||
726b8548 QT |
1066 | if (own) { |
1067 | sess->fw_login_state = DSC_LS_PLOGI_PEND; | |
b7bd104e | 1068 | qlt_plogi_ack_unref(vha, own); |
726b8548 QT |
1069 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; |
1070 | } | |
b7bd104e | 1071 | } |
5d964837 QT |
1072 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
1073 | ||
2d70c103 | 1074 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001, |
726b8548 QT |
1075 | "Unregistration of sess %p %8phC finished fcp_cnt %d\n", |
1076 | sess, sess->port_name, vha->fcport_count); | |
2d70c103 | 1077 | |
726b8548 | 1078 | if (tgt && (tgt->sess_count == 0)) |
2d70c103 | 1079 | wake_up_all(&tgt->waitQ); |
726b8548 QT |
1080 | |
1081 | if (vha->fcport_count == 0) | |
1082 | wake_up_all(&vha->fcport_waitQ); | |
1083 | ||
41dc529a QT |
1084 | base_vha = pci_get_drvdata(ha->pdev); |
1085 | if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) | |
1086 | return; | |
1087 | ||
726b8548 QT |
1088 | if (!tgt || !tgt->tgt_stop) { |
1089 | memset(&ea, 0, sizeof(ea)); | |
1090 | ea.event = FCME_DELETE_DONE; | |
1091 | ea.fcport = sess; | |
1092 | qla2x00_fcport_event_handler(vha, &ea); | |
1093 | } | |
2d70c103 NB |
1094 | } |
1095 | ||
7560151b | 1096 | /* ha->tgt.sess_lock supposed to be held on entry */ |
5d964837 | 1097 | void qlt_unreg_sess(struct fc_port *sess) |
2d70c103 NB |
1098 | { |
1099 | struct scsi_qla_host *vha = sess->vha; | |
1100 | ||
5d964837 QT |
1101 | ql_dbg(ql_dbg_disc, sess->vha, 0xffff, |
1102 | "%s sess %p for deletion %8phC\n", | |
1103 | __func__, sess, sess->port_name); | |
1104 | ||
36c78452 QT |
1105 | if (sess->se_sess) |
1106 | vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess); | |
2d70c103 | 1107 | |
5d964837 QT |
1108 | qla2x00_mark_device_lost(vha, sess, 1, 1); |
1109 | ||
a6ca8878 | 1110 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; |
726b8548 QT |
1111 | sess->disc_state = DSC_DELETE_PEND; |
1112 | sess->last_rscn_gen = sess->rscn_gen; | |
1113 | sess->last_login_gen = sess->login_gen; | |
2d70c103 NB |
1114 | |
1115 | INIT_WORK(&sess->free_work, qlt_free_session_done); | |
1116 | schedule_work(&sess->free_work); | |
1117 | } | |
5d964837 | 1118 | EXPORT_SYMBOL(qlt_unreg_sess); |
7560151b | 1119 | |
2d70c103 NB |
1120 | static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd) |
1121 | { | |
1122 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 1123 | struct fc_port *sess = NULL; |
2d70c103 NB |
1124 | uint16_t loop_id; |
1125 | int res = 0; | |
1126 | struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb; | |
7560151b | 1127 | unsigned long flags; |
2d70c103 NB |
1128 | |
1129 | loop_id = le16_to_cpu(n->u.isp24.nport_handle); | |
1130 | if (loop_id == 0xFFFF) { | |
2d70c103 | 1131 | /* Global event */ |
b2032fd5 | 1132 | atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); |
7560151b | 1133 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
b2032fd5 | 1134 | qlt_clear_tgt_db(vha->vha_tgt.qla_tgt); |
7560151b | 1135 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 1136 | } else { |
7560151b | 1137 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1138 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b | 1139 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1140 | } |
1141 | ||
1142 | ql_dbg(ql_dbg_tgt, vha, 0xe000, | |
1143 | "Using sess for qla_tgt_reset: %p\n", sess); | |
1144 | if (!sess) { | |
1145 | res = -ESRCH; | |
1146 | return res; | |
1147 | } | |
1148 | ||
1149 | ql_dbg(ql_dbg_tgt, vha, 0xe047, | |
7b833558 OK |
1150 | "scsi(%ld): resetting (session %p from port %8phC mcmd %x, " |
1151 | "loop_id %d)\n", vha->host_no, sess, sess->port_name, | |
2d70c103 NB |
1152 | mcmd, loop_id); |
1153 | ||
bb1181c9 | 1154 | return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK); |
2d70c103 NB |
1155 | } |
1156 | ||
726b8548 QT |
1157 | static void qla24xx_chk_fcp_state(struct fc_port *sess) |
1158 | { | |
1159 | if (sess->chip_reset != sess->vha->hw->chip_reset) { | |
1160 | sess->logout_on_delete = 0; | |
1161 | sess->logo_ack_needed = 0; | |
1162 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1163 | sess->scan_state = 0; | |
1164 | } | |
1165 | } | |
1166 | ||
7560151b | 1167 | /* ha->tgt.sess_lock supposed to be held on entry */ |
726b8548 | 1168 | void qlt_schedule_sess_for_deletion(struct fc_port *sess, |
2d70c103 NB |
1169 | bool immediate) |
1170 | { | |
1171 | struct qla_tgt *tgt = sess->tgt; | |
2d70c103 | 1172 | |
726b8548 QT |
1173 | if (sess->disc_state == DSC_DELETE_PEND) |
1174 | return; | |
1175 | ||
1176 | if (sess->disc_state == DSC_DELETED) { | |
1177 | if (tgt && tgt->tgt_stop && (tgt->sess_count == 0)) | |
1178 | wake_up_all(&tgt->waitQ); | |
1179 | if (sess->vha->fcport_count == 0) | |
1180 | wake_up_all(&sess->vha->fcport_waitQ); | |
1181 | ||
1182 | if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] && | |
1183 | !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) | |
a6ca8878 AP |
1184 | return; |
1185 | } | |
2d70c103 | 1186 | |
726b8548 | 1187 | sess->disc_state = DSC_DELETE_PEND; |
2d70c103 | 1188 | |
726b8548 QT |
1189 | if (sess->deleted == QLA_SESS_DELETED) |
1190 | sess->logout_on_delete = 0; | |
1191 | ||
1192 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; | |
1193 | qla24xx_chk_fcp_state(sess); | |
2d70c103 | 1194 | |
726b8548 QT |
1195 | ql_dbg(ql_dbg_tgt, sess->vha, 0xe001, |
1196 | "Scheduling sess %p for deletion\n", sess); | |
2d70c103 | 1197 | |
726b8548 QT |
1198 | schedule_work(&sess->del_work); |
1199 | } | |
2d70c103 | 1200 | |
726b8548 QT |
1201 | void qlt_schedule_sess_for_deletion_lock(struct fc_port *sess) |
1202 | { | |
1203 | unsigned long flags; | |
1204 | struct qla_hw_data *ha = sess->vha->hw; | |
1205 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
1206 | qlt_schedule_sess_for_deletion(sess, 1); | |
1207 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
1208 | } |
1209 | ||
7560151b | 1210 | /* ha->tgt.sess_lock supposed to be held on entry */ |
c5701042 | 1211 | static void qlt_clear_tgt_db(struct qla_tgt *tgt) |
2d70c103 | 1212 | { |
5d964837 QT |
1213 | struct fc_port *sess; |
1214 | scsi_qla_host_t *vha = tgt->vha; | |
2d70c103 | 1215 | |
5d964837 QT |
1216 | list_for_each_entry(sess, &vha->vp_fcports, list) { |
1217 | if (sess->se_sess) | |
726b8548 | 1218 | qlt_schedule_sess_for_deletion(sess, 1); |
5d964837 | 1219 | } |
2d70c103 NB |
1220 | |
1221 | /* At this point tgt could be already dead */ | |
1222 | } | |
1223 | ||
1224 | static int qla24xx_get_loop_id(struct scsi_qla_host *vha, const uint8_t *s_id, | |
1225 | uint16_t *loop_id) | |
1226 | { | |
1227 | struct qla_hw_data *ha = vha->hw; | |
1228 | dma_addr_t gid_list_dma; | |
1229 | struct gid_list_info *gid_list; | |
1230 | char *id_iter; | |
1231 | int res, rc, i; | |
1232 | uint16_t entries; | |
1233 | ||
1234 | gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1235 | &gid_list_dma, GFP_KERNEL); | |
1236 | if (!gid_list) { | |
1237 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044, | |
1238 | "qla_target(%d): DMA Alloc failed of %u\n", | |
1239 | vha->vp_idx, qla2x00_gid_list_size(ha)); | |
1240 | return -ENOMEM; | |
1241 | } | |
1242 | ||
1243 | /* Get list of logged in devices */ | |
15f30a57 | 1244 | rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries); |
2d70c103 NB |
1245 | if (rc != QLA_SUCCESS) { |
1246 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045, | |
1247 | "qla_target(%d): get_id_list() failed: %x\n", | |
1248 | vha->vp_idx, rc); | |
71cdc079 | 1249 | res = -EBUSY; |
2d70c103 NB |
1250 | goto out_free_id_list; |
1251 | } | |
1252 | ||
1253 | id_iter = (char *)gid_list; | |
71cdc079 | 1254 | res = -ENOENT; |
2d70c103 NB |
1255 | for (i = 0; i < entries; i++) { |
1256 | struct gid_list_info *gid = (struct gid_list_info *)id_iter; | |
1257 | if ((gid->al_pa == s_id[2]) && | |
1258 | (gid->area == s_id[1]) && | |
1259 | (gid->domain == s_id[0])) { | |
1260 | *loop_id = le16_to_cpu(gid->loop_id); | |
1261 | res = 0; | |
1262 | break; | |
1263 | } | |
1264 | id_iter += ha->gid_list_info_size; | |
1265 | } | |
1266 | ||
1267 | out_free_id_list: | |
1268 | dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1269 | gid_list, gid_list_dma); | |
1270 | return res; | |
1271 | } | |
1272 | ||
2d70c103 NB |
1273 | /* |
1274 | * Adds an extra ref to allow to drop hw lock after adding sess to the list. | |
1275 | * Caller must put it. | |
1276 | */ | |
5d964837 | 1277 | static struct fc_port *qlt_create_sess( |
2d70c103 NB |
1278 | struct scsi_qla_host *vha, |
1279 | fc_port_t *fcport, | |
1280 | bool local) | |
1281 | { | |
1282 | struct qla_hw_data *ha = vha->hw; | |
726b8548 | 1283 | struct fc_port *sess = fcport; |
2d70c103 | 1284 | unsigned long flags; |
2d70c103 | 1285 | |
726b8548 QT |
1286 | if (vha->vha_tgt.qla_tgt->tgt_stop) |
1287 | return NULL; | |
2d70c103 | 1288 | |
726b8548 QT |
1289 | if (fcport->se_sess) { |
1290 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
1291 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
1292 | "%s: kref_get_unless_zero failed for %8phC\n", | |
1293 | __func__, sess->port_name); | |
1294 | return NULL; | |
2d70c103 | 1295 | } |
726b8548 | 1296 | return fcport; |
2d70c103 | 1297 | } |
0e8cd71c | 1298 | sess->tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 1299 | sess->local = local; |
a6ca8878 | 1300 | |
726b8548 QT |
1301 | /* |
1302 | * Under normal circumstances we want to logout from firmware when | |
a6ca8878 AP |
1303 | * session eventually ends and release corresponding nport handle. |
1304 | * In the exception cases (e.g. when new PLOGI is waiting) corresponding | |
726b8548 QT |
1305 | * code will adjust these flags as necessary. |
1306 | */ | |
a6ca8878 AP |
1307 | sess->logout_on_delete = 1; |
1308 | sess->keep_nport_handle = 0; | |
726b8548 | 1309 | sess->logout_completed = 0; |
2d70c103 | 1310 | |
726b8548 QT |
1311 | if (ha->tgt.tgt_ops->check_initiator_node_acl(vha, |
1312 | &fcport->port_name[0], sess) < 0) { | |
1313 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, | |
1314 | "(%d) %8phC check_initiator_node_acl failed\n", | |
1315 | vha->vp_idx, fcport->port_name); | |
1316 | return NULL; | |
1317 | } else { | |
1318 | kref_init(&fcport->sess_kref); | |
1319 | /* | |
1320 | * Take an extra reference to ->sess_kref here to handle | |
1321 | * fc_port access across ->tgt.sess_lock reaquire. | |
1322 | */ | |
1323 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
1324 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
1325 | "%s: kref_get_unless_zero failed for %8phC\n", | |
1326 | __func__, sess->port_name); | |
1327 | return NULL; | |
1328 | } | |
2d70c103 | 1329 | |
726b8548 QT |
1330 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1331 | if (!IS_SW_RESV_ADDR(sess->d_id)) | |
1332 | vha->vha_tgt.qla_tgt->sess_count++; | |
2d70c103 | 1333 | |
726b8548 QT |
1334 | qlt_do_generation_tick(vha, &sess->generation); |
1335 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1336 | } | |
1337 | ||
1338 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006, | |
1339 | "Adding sess %p se_sess %p to tgt %p sess_count %d\n", | |
1340 | sess, sess->se_sess, vha->vha_tgt.qla_tgt, | |
1341 | vha->vha_tgt.qla_tgt->sess_count); | |
2d70c103 NB |
1342 | |
1343 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b, | |
7b833558 OK |
1344 | "qla_target(%d): %ssession for wwn %8phC (loop_id %d, " |
1345 | "s_id %x:%x:%x, confirmed completion %ssupported) added\n", | |
1346 | vha->vp_idx, local ? "local " : "", fcport->port_name, | |
37cacc0a QT |
1347 | fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area, |
1348 | sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not "); | |
2d70c103 NB |
1349 | |
1350 | return sess; | |
1351 | } | |
1352 | ||
df673274 AP |
1353 | /* |
1354 | * max_gen - specifies maximum session generation | |
1355 | * at which this deletion requestion is still valid | |
1356 | */ | |
1357 | void | |
1358 | qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen) | |
2d70c103 | 1359 | { |
0e8cd71c | 1360 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 1361 | struct fc_port *sess = fcport; |
7560151b | 1362 | unsigned long flags; |
2d70c103 NB |
1363 | |
1364 | if (!vha->hw->tgt.tgt_ops) | |
1365 | return; | |
1366 | ||
b2032fd5 | 1367 | if (!tgt) |
2d70c103 NB |
1368 | return; |
1369 | ||
7560151b | 1370 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
2d70c103 | 1371 | if (tgt->tgt_stop) { |
7560151b | 1372 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1373 | return; |
1374 | } | |
5d964837 | 1375 | if (!sess->se_sess) { |
7560151b | 1376 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1377 | return; |
1378 | } | |
1379 | ||
df673274 | 1380 | if (max_gen - sess->generation < 0) { |
7560151b | 1381 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
df673274 AP |
1382 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092, |
1383 | "Ignoring stale deletion request for se_sess %p / sess %p" | |
1384 | " for port %8phC, req_gen %d, sess_gen %d\n", | |
1385 | sess->se_sess, sess, sess->port_name, max_gen, | |
1386 | sess->generation); | |
1387 | return; | |
1388 | } | |
1389 | ||
2d70c103 NB |
1390 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess); |
1391 | ||
1392 | sess->local = 1; | |
1393 | qlt_schedule_sess_for_deletion(sess, false); | |
7560151b | 1394 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1395 | } |
1396 | ||
1397 | static inline int test_tgt_sess_count(struct qla_tgt *tgt) | |
1398 | { | |
1399 | struct qla_hw_data *ha = tgt->ha; | |
1400 | unsigned long flags; | |
1401 | int res; | |
1402 | /* | |
1403 | * We need to protect against race, when tgt is freed before or | |
1404 | * inside wake_up() | |
1405 | */ | |
726b8548 | 1406 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1407 | ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002, |
5d964837 QT |
1408 | "tgt %p, sess_count=%d\n", |
1409 | tgt, tgt->sess_count); | |
2d70c103 | 1410 | res = (tgt->sess_count == 0); |
726b8548 | 1411 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1412 | |
1413 | return res; | |
1414 | } | |
1415 | ||
1416 | /* Called by tcm_qla2xxx configfs code */ | |
3c231bda | 1417 | int qlt_stop_phase1(struct qla_tgt *tgt) |
2d70c103 NB |
1418 | { |
1419 | struct scsi_qla_host *vha = tgt->vha; | |
1420 | struct qla_hw_data *ha = tgt->ha; | |
1421 | unsigned long flags; | |
1422 | ||
3c231bda NB |
1423 | mutex_lock(&qla_tgt_mutex); |
1424 | if (!vha->fc_vport) { | |
1425 | struct Scsi_Host *sh = vha->host; | |
1426 | struct fc_host_attrs *fc_host = shost_to_fc_host(sh); | |
1427 | bool npiv_vports; | |
1428 | ||
1429 | spin_lock_irqsave(sh->host_lock, flags); | |
1430 | npiv_vports = (fc_host->npiv_vports_inuse); | |
1431 | spin_unlock_irqrestore(sh->host_lock, flags); | |
1432 | ||
1433 | if (npiv_vports) { | |
1434 | mutex_unlock(&qla_tgt_mutex); | |
1435 | return -EPERM; | |
1436 | } | |
1437 | } | |
2d70c103 NB |
1438 | if (tgt->tgt_stop || tgt->tgt_stopped) { |
1439 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e, | |
1440 | "Already in tgt->tgt_stop or tgt_stopped state\n"); | |
3c231bda NB |
1441 | mutex_unlock(&qla_tgt_mutex); |
1442 | return -EPERM; | |
2d70c103 NB |
1443 | } |
1444 | ||
1445 | ql_dbg(ql_dbg_tgt, vha, 0xe003, "Stopping target for host %ld(%p)\n", | |
1446 | vha->host_no, vha); | |
1447 | /* | |
1448 | * Mutex needed to sync with qla_tgt_fc_port_[added,deleted]. | |
1449 | * Lock is needed, because we still can get an incoming packet. | |
1450 | */ | |
0e8cd71c | 1451 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
7560151b | 1452 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1453 | tgt->tgt_stop = 1; |
c5701042 | 1454 | qlt_clear_tgt_db(tgt); |
7560151b | 1455 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
0e8cd71c | 1456 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
3c231bda | 1457 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 | 1458 | |
2d70c103 NB |
1459 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009, |
1460 | "Waiting for sess works (tgt %p)", tgt); | |
1461 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1462 | while (!list_empty(&tgt->sess_works_list)) { | |
1463 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1464 | flush_scheduled_work(); | |
1465 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1466 | } | |
1467 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1468 | ||
1469 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a, | |
5d964837 | 1470 | "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count); |
2d70c103 NB |
1471 | |
1472 | wait_event(tgt->waitQ, test_tgt_sess_count(tgt)); | |
1473 | ||
1474 | /* Big hammer */ | |
ead03855 QT |
1475 | if (!ha->flags.host_shutting_down && |
1476 | (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))) | |
2d70c103 NB |
1477 | qlt_disable_vha(vha); |
1478 | ||
1479 | /* Wait for sessions to clear out (just in case) */ | |
1480 | wait_event(tgt->waitQ, test_tgt_sess_count(tgt)); | |
3c231bda | 1481 | return 0; |
2d70c103 NB |
1482 | } |
1483 | EXPORT_SYMBOL(qlt_stop_phase1); | |
1484 | ||
1485 | /* Called by tcm_qla2xxx configfs code */ | |
1486 | void qlt_stop_phase2(struct qla_tgt *tgt) | |
1487 | { | |
1488 | struct qla_hw_data *ha = tgt->ha; | |
0e8cd71c | 1489 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
2d70c103 NB |
1490 | unsigned long flags; |
1491 | ||
1492 | if (tgt->tgt_stopped) { | |
0e8cd71c | 1493 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f, |
2d70c103 NB |
1494 | "Already in tgt->tgt_stopped state\n"); |
1495 | dump_stack(); | |
1496 | return; | |
1497 | } | |
1498 | ||
0e8cd71c | 1499 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b, |
2d70c103 NB |
1500 | "Waiting for %d IRQ commands to complete (tgt %p)", |
1501 | tgt->irq_cmd_count, tgt); | |
1502 | ||
0e8cd71c | 1503 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
2d70c103 | 1504 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2f424b9b | 1505 | while ((tgt->irq_cmd_count != 0) || (tgt->atio_irq_cmd_count != 0)) { |
2d70c103 NB |
1506 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1507 | udelay(2); | |
1508 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1509 | } | |
1510 | tgt->tgt_stop = 0; | |
1511 | tgt->tgt_stopped = 1; | |
1512 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
0e8cd71c | 1513 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
2d70c103 | 1514 | |
0e8cd71c | 1515 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished", |
2d70c103 NB |
1516 | tgt); |
1517 | } | |
1518 | EXPORT_SYMBOL(qlt_stop_phase2); | |
1519 | ||
1520 | /* Called from qlt_remove_target() -> qla2x00_remove_one() */ | |
fa492630 | 1521 | static void qlt_release(struct qla_tgt *tgt) |
2d70c103 | 1522 | { |
0e8cd71c | 1523 | scsi_qla_host_t *vha = tgt->vha; |
2d70c103 | 1524 | |
0e8cd71c | 1525 | if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped) |
2d70c103 NB |
1526 | qlt_stop_phase2(tgt); |
1527 | ||
0e8cd71c | 1528 | vha->vha_tgt.qla_tgt = NULL; |
2d70c103 | 1529 | |
0e8cd71c | 1530 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d, |
2d70c103 NB |
1531 | "Release of tgt %p finished\n", tgt); |
1532 | ||
1533 | kfree(tgt); | |
1534 | } | |
1535 | ||
1536 | /* ha->hardware_lock supposed to be held on entry */ | |
1537 | static int qlt_sched_sess_work(struct qla_tgt *tgt, int type, | |
1538 | const void *param, unsigned int param_size) | |
1539 | { | |
1540 | struct qla_tgt_sess_work_param *prm; | |
1541 | unsigned long flags; | |
1542 | ||
1543 | prm = kzalloc(sizeof(*prm), GFP_ATOMIC); | |
1544 | if (!prm) { | |
1545 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050, | |
1546 | "qla_target(%d): Unable to create session " | |
1547 | "work, command will be refused", 0); | |
1548 | return -ENOMEM; | |
1549 | } | |
1550 | ||
1551 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e, | |
1552 | "Scheduling work (type %d, prm %p)" | |
1553 | " to find session for param %p (size %d, tgt %p)\n", | |
1554 | type, prm, param, param_size, tgt); | |
1555 | ||
1556 | prm->type = type; | |
1557 | memcpy(&prm->tm_iocb, param, param_size); | |
1558 | ||
1559 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1560 | list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list); | |
1561 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1562 | ||
1563 | schedule_work(&tgt->sess_work); | |
1564 | ||
1565 | return 0; | |
1566 | } | |
1567 | ||
1568 | /* | |
1569 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1570 | */ | |
1571 | static void qlt_send_notify_ack(struct scsi_qla_host *vha, | |
1572 | struct imm_ntfy_from_isp *ntfy, | |
1573 | uint32_t add_flags, uint16_t resp_code, int resp_code_valid, | |
1574 | uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan) | |
1575 | { | |
1576 | struct qla_hw_data *ha = vha->hw; | |
1577 | request_t *pkt; | |
1578 | struct nack_to_isp *nack; | |
1579 | ||
ec7193e2 QT |
1580 | if (!ha->flags.fw_started) |
1581 | return; | |
1582 | ||
2d70c103 NB |
1583 | ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha); |
1584 | ||
1585 | /* Send marker if required */ | |
1586 | if (qlt_issue_marker(vha, 1) != QLA_SUCCESS) | |
1587 | return; | |
1588 | ||
1589 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); | |
1590 | if (!pkt) { | |
1591 | ql_dbg(ql_dbg_tgt, vha, 0xe049, | |
1592 | "qla_target(%d): %s failed: unable to allocate " | |
1593 | "request packet\n", vha->vp_idx, __func__); | |
1594 | return; | |
1595 | } | |
1596 | ||
0e8cd71c SK |
1597 | if (vha->vha_tgt.qla_tgt != NULL) |
1598 | vha->vha_tgt.qla_tgt->notify_ack_expected++; | |
2d70c103 NB |
1599 | |
1600 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
1601 | pkt->entry_count = 1; | |
1602 | ||
1603 | nack = (struct nack_to_isp *)pkt; | |
1604 | nack->ox_id = ntfy->ox_id; | |
1605 | ||
726b8548 | 1606 | nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE; |
2d70c103 NB |
1607 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; |
1608 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
1609 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
ad950360 | 1610 | cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); |
2d70c103 NB |
1611 | } |
1612 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
1613 | nack->u.isp24.status = ntfy->u.isp24.status; | |
1614 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
aa230bc5 | 1615 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; |
2d70c103 NB |
1616 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; |
1617 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
1618 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
1619 | nack->u.isp24.srr_flags = cpu_to_le16(srr_flags); | |
1620 | nack->u.isp24.srr_reject_code = srr_reject_code; | |
1621 | nack->u.isp24.srr_reject_code_expl = srr_explan; | |
1622 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
1623 | ||
1624 | ql_dbg(ql_dbg_tgt, vha, 0xe005, | |
1625 | "qla_target(%d): Sending 24xx Notify Ack %d\n", | |
1626 | vha->vp_idx, nack->u.isp24.status); | |
1627 | ||
63163e06 HM |
1628 | /* Memory Barrier */ |
1629 | wmb(); | |
2d70c103 NB |
1630 | qla2x00_start_iocbs(vha, vha->req); |
1631 | } | |
1632 | ||
1633 | /* | |
1634 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1635 | */ | |
1636 | static void qlt_24xx_send_abts_resp(struct scsi_qla_host *vha, | |
1637 | struct abts_recv_from_24xx *abts, uint32_t status, | |
1638 | bool ids_reversed) | |
1639 | { | |
1640 | struct qla_hw_data *ha = vha->hw; | |
1641 | struct abts_resp_to_24xx *resp; | |
1642 | uint32_t f_ctl; | |
1643 | uint8_t *p; | |
1644 | ||
1645 | ql_dbg(ql_dbg_tgt, vha, 0xe006, | |
1646 | "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n", | |
1647 | ha, abts, status); | |
1648 | ||
1649 | /* Send marker if required */ | |
1650 | if (qlt_issue_marker(vha, 1) != QLA_SUCCESS) | |
1651 | return; | |
1652 | ||
b6a029e1 | 1653 | resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(vha, NULL); |
2d70c103 NB |
1654 | if (!resp) { |
1655 | ql_dbg(ql_dbg_tgt, vha, 0xe04a, | |
1656 | "qla_target(%d): %s failed: unable to allocate " | |
1657 | "request packet", vha->vp_idx, __func__); | |
1658 | return; | |
1659 | } | |
1660 | ||
1661 | resp->entry_type = ABTS_RESP_24XX; | |
1662 | resp->entry_count = 1; | |
1663 | resp->nport_handle = abts->nport_handle; | |
1664 | resp->vp_index = vha->vp_idx; | |
1665 | resp->sof_type = abts->sof_type; | |
1666 | resp->exchange_address = abts->exchange_address; | |
1667 | resp->fcp_hdr_le = abts->fcp_hdr_le; | |
ad950360 | 1668 | f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP | |
2d70c103 NB |
1669 | F_CTL_LAST_SEQ | F_CTL_END_SEQ | |
1670 | F_CTL_SEQ_INITIATIVE); | |
1671 | p = (uint8_t *)&f_ctl; | |
1672 | resp->fcp_hdr_le.f_ctl[0] = *p++; | |
1673 | resp->fcp_hdr_le.f_ctl[1] = *p++; | |
1674 | resp->fcp_hdr_le.f_ctl[2] = *p; | |
1675 | if (ids_reversed) { | |
1676 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1677 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1678 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1679 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1680 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1681 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1682 | } else { | |
1683 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1684 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1685 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1686 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1687 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1688 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1689 | } | |
1690 | resp->exchange_addr_to_abort = abts->exchange_addr_to_abort; | |
1691 | if (status == FCP_TMF_CMPL) { | |
1692 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC; | |
1693 | resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID; | |
1694 | resp->payload.ba_acct.low_seq_cnt = 0x0000; | |
1695 | resp->payload.ba_acct.high_seq_cnt = 0xFFFF; | |
1696 | resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id; | |
1697 | resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id; | |
1698 | } else { | |
1699 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT; | |
1700 | resp->payload.ba_rjt.reason_code = | |
1701 | BA_RJT_REASON_CODE_UNABLE_TO_PERFORM; | |
1702 | /* Other bytes are zero */ | |
1703 | } | |
1704 | ||
0e8cd71c | 1705 | vha->vha_tgt.qla_tgt->abts_resp_expected++; |
2d70c103 | 1706 | |
63163e06 HM |
1707 | /* Memory Barrier */ |
1708 | wmb(); | |
2d70c103 NB |
1709 | qla2x00_start_iocbs(vha, vha->req); |
1710 | } | |
1711 | ||
1712 | /* | |
1713 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1714 | */ | |
1715 | static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha, | |
1716 | struct abts_resp_from_24xx_fw *entry) | |
1717 | { | |
1718 | struct ctio7_to_24xx *ctio; | |
1719 | ||
1720 | ql_dbg(ql_dbg_tgt, vha, 0xe007, | |
1721 | "Sending retry TERM EXCH CTIO7 (ha=%p)\n", vha->hw); | |
1722 | /* Send marker if required */ | |
1723 | if (qlt_issue_marker(vha, 1) != QLA_SUCCESS) | |
1724 | return; | |
1725 | ||
b6a029e1 | 1726 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(vha, NULL); |
2d70c103 NB |
1727 | if (ctio == NULL) { |
1728 | ql_dbg(ql_dbg_tgt, vha, 0xe04b, | |
1729 | "qla_target(%d): %s failed: unable to allocate " | |
1730 | "request packet\n", vha->vp_idx, __func__); | |
1731 | return; | |
1732 | } | |
1733 | ||
1734 | /* | |
1735 | * We've got on entrance firmware's response on by us generated | |
1736 | * ABTS response. So, in it ID fields are reversed. | |
1737 | */ | |
1738 | ||
1739 | ctio->entry_type = CTIO_TYPE7; | |
1740 | ctio->entry_count = 1; | |
1741 | ctio->nport_handle = entry->nport_handle; | |
1742 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
ad950360 | 1743 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
1744 | ctio->vp_index = vha->vp_idx; |
1745 | ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0]; | |
1746 | ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1]; | |
1747 | ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2]; | |
1748 | ctio->exchange_addr = entry->exchange_addr_to_abort; | |
ad950360 BVA |
1749 | ctio->u.status1.flags = cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | |
1750 | CTIO7_FLAGS_TERMINATE); | |
33a5fcee | 1751 | ctio->u.status1.ox_id = cpu_to_le16(entry->fcp_hdr_le.ox_id); |
2d70c103 | 1752 | |
63163e06 HM |
1753 | /* Memory Barrier */ |
1754 | wmb(); | |
2d70c103 NB |
1755 | qla2x00_start_iocbs(vha, vha->req); |
1756 | ||
1757 | qlt_24xx_send_abts_resp(vha, (struct abts_recv_from_24xx *)entry, | |
1758 | FCP_TMF_CMPL, true); | |
1759 | } | |
1760 | ||
8b2f5ff3 SN |
1761 | static int abort_cmd_for_tag(struct scsi_qla_host *vha, uint32_t tag) |
1762 | { | |
1763 | struct qla_tgt_sess_op *op; | |
1764 | struct qla_tgt_cmd *cmd; | |
1765 | ||
1766 | spin_lock(&vha->cmd_list_lock); | |
1767 | ||
1768 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { | |
1769 | if (tag == op->atio.u.isp24.exchange_addr) { | |
1770 | op->aborted = true; | |
1771 | spin_unlock(&vha->cmd_list_lock); | |
1772 | return 1; | |
1773 | } | |
1774 | } | |
1775 | ||
41dc529a QT |
1776 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { |
1777 | if (tag == op->atio.u.isp24.exchange_addr) { | |
1778 | op->aborted = true; | |
1779 | spin_unlock(&vha->cmd_list_lock); | |
1780 | return 1; | |
1781 | } | |
1782 | } | |
1783 | ||
8b2f5ff3 SN |
1784 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
1785 | if (tag == cmd->atio.u.isp24.exchange_addr) { | |
193b50b9 | 1786 | cmd->aborted = 1; |
8b2f5ff3 SN |
1787 | spin_unlock(&vha->cmd_list_lock); |
1788 | return 1; | |
1789 | } | |
1790 | } | |
1791 | ||
1792 | spin_unlock(&vha->cmd_list_lock); | |
1793 | return 0; | |
1794 | } | |
1795 | ||
1796 | /* drop cmds for the given lun | |
1797 | * XXX only looks for cmds on the port through which lun reset was recieved | |
1798 | * XXX does not go through the list of other port (which may have cmds | |
1799 | * for the same lun) | |
1800 | */ | |
1801 | static void abort_cmds_for_lun(struct scsi_qla_host *vha, | |
1802 | uint32_t lun, uint8_t *s_id) | |
1803 | { | |
1804 | struct qla_tgt_sess_op *op; | |
1805 | struct qla_tgt_cmd *cmd; | |
1806 | uint32_t key; | |
1807 | ||
1808 | key = sid_to_key(s_id); | |
1809 | spin_lock(&vha->cmd_list_lock); | |
1810 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { | |
1811 | uint32_t op_key; | |
1812 | uint32_t op_lun; | |
1813 | ||
1814 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
1815 | op_lun = scsilun_to_int( | |
1816 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
1817 | if (op_key == key && op_lun == lun) | |
1818 | op->aborted = true; | |
1819 | } | |
41dc529a QT |
1820 | |
1821 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
1822 | uint32_t op_key; | |
1823 | u64 op_lun; | |
1824 | ||
1825 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
1826 | op_lun = scsilun_to_int( | |
1827 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
1828 | if (op_key == key && op_lun == lun) | |
1829 | op->aborted = true; | |
1830 | } | |
1831 | ||
8b2f5ff3 SN |
1832 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
1833 | uint32_t cmd_key; | |
1834 | uint32_t cmd_lun; | |
1835 | ||
1836 | cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
1837 | cmd_lun = scsilun_to_int( | |
1838 | (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun); | |
1839 | if (cmd_key == key && cmd_lun == lun) | |
193b50b9 | 1840 | cmd->aborted = 1; |
8b2f5ff3 SN |
1841 | } |
1842 | spin_unlock(&vha->cmd_list_lock); | |
1843 | } | |
1844 | ||
2d70c103 NB |
1845 | /* ha->hardware_lock supposed to be held on entry */ |
1846 | static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
5d964837 | 1847 | struct abts_recv_from_24xx *abts, struct fc_port *sess) |
2d70c103 NB |
1848 | { |
1849 | struct qla_hw_data *ha = vha->hw; | |
06e97b48 | 1850 | struct se_session *se_sess = sess->se_sess; |
2d70c103 | 1851 | struct qla_tgt_mgmt_cmd *mcmd; |
06e97b48 SH |
1852 | struct se_cmd *se_cmd; |
1853 | u32 lun = 0; | |
2d70c103 | 1854 | int rc; |
06e97b48 | 1855 | bool found_lun = false; |
5d964837 | 1856 | unsigned long flags; |
06e97b48 | 1857 | |
5d964837 | 1858 | spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); |
06e97b48 SH |
1859 | list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) { |
1860 | struct qla_tgt_cmd *cmd = | |
1861 | container_of(se_cmd, struct qla_tgt_cmd, se_cmd); | |
649ee054 | 1862 | if (se_cmd->tag == abts->exchange_addr_to_abort) { |
06e97b48 SH |
1863 | lun = cmd->unpacked_lun; |
1864 | found_lun = true; | |
1865 | break; | |
1866 | } | |
1867 | } | |
5d964837 | 1868 | spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); |
06e97b48 | 1869 | |
8b2f5ff3 SN |
1870 | /* cmd not in LIO lists, look in qla list */ |
1871 | if (!found_lun) { | |
1872 | if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) { | |
1873 | /* send TASK_ABORT response immediately */ | |
1874 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_CMPL, false); | |
1875 | return 0; | |
1876 | } else { | |
1877 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf081, | |
1878 | "unable to find cmd in driver or LIO for tag 0x%x\n", | |
1879 | abts->exchange_addr_to_abort); | |
1880 | return -ENOENT; | |
1881 | } | |
1882 | } | |
2d70c103 NB |
1883 | |
1884 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f, | |
1885 | "qla_target(%d): task abort (tag=%d)\n", | |
1886 | vha->vp_idx, abts->exchange_addr_to_abort); | |
1887 | ||
1888 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
1889 | if (mcmd == NULL) { | |
1890 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051, | |
1891 | "qla_target(%d): %s: Allocation of ABORT cmd failed", | |
1892 | vha->vp_idx, __func__); | |
1893 | return -ENOMEM; | |
1894 | } | |
1895 | memset(mcmd, 0, sizeof(*mcmd)); | |
1896 | ||
1897 | mcmd->sess = sess; | |
1898 | memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts)); | |
80187f8e | 1899 | mcmd->reset_count = vha->hw->chip_reset; |
be92fc3f | 1900 | mcmd->tmr_func = QLA_TGT_ABTS; |
2d70c103 | 1901 | |
be92fc3f | 1902 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, lun, mcmd->tmr_func, |
2d70c103 NB |
1903 | abts->exchange_addr_to_abort); |
1904 | if (rc != 0) { | |
1905 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf052, | |
1906 | "qla_target(%d): tgt_ops->handle_tmr()" | |
1907 | " failed: %d", vha->vp_idx, rc); | |
1908 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
1909 | return -EFAULT; | |
1910 | } | |
1911 | ||
1912 | return 0; | |
1913 | } | |
1914 | ||
1915 | /* | |
1916 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1917 | */ | |
1918 | static void qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
1919 | struct abts_recv_from_24xx *abts) | |
1920 | { | |
1921 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 1922 | struct fc_port *sess; |
2d70c103 NB |
1923 | uint32_t tag = abts->exchange_addr_to_abort; |
1924 | uint8_t s_id[3]; | |
1925 | int rc; | |
7560151b | 1926 | unsigned long flags; |
2d70c103 NB |
1927 | |
1928 | if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) { | |
1929 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053, | |
1930 | "qla_target(%d): ABTS: Abort Sequence not " | |
1931 | "supported\n", vha->vp_idx); | |
1932 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); | |
1933 | return; | |
1934 | } | |
1935 | ||
1936 | if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) { | |
1937 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010, | |
1938 | "qla_target(%d): ABTS: Unknown Exchange " | |
1939 | "Address received\n", vha->vp_idx); | |
1940 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); | |
1941 | return; | |
1942 | } | |
1943 | ||
1944 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011, | |
1945 | "qla_target(%d): task abort (s_id=%x:%x:%x, " | |
1946 | "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id[2], | |
1947 | abts->fcp_hdr_le.s_id[1], abts->fcp_hdr_le.s_id[0], tag, | |
1948 | le32_to_cpu(abts->fcp_hdr_le.parameter)); | |
1949 | ||
1950 | s_id[0] = abts->fcp_hdr_le.s_id[2]; | |
1951 | s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1952 | s_id[2] = abts->fcp_hdr_le.s_id[0]; | |
1953 | ||
7560151b | 1954 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1955 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); |
1956 | if (!sess) { | |
1957 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012, | |
1958 | "qla_target(%d): task abort for non-existant session\n", | |
1959 | vha->vp_idx); | |
0e8cd71c | 1960 | rc = qlt_sched_sess_work(vha->vha_tgt.qla_tgt, |
2d70c103 | 1961 | QLA_TGT_SESS_WORK_ABORT, abts, sizeof(*abts)); |
7560151b QT |
1962 | |
1963 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1964 | ||
2d70c103 NB |
1965 | if (rc != 0) { |
1966 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, | |
1967 | false); | |
1968 | } | |
1969 | return; | |
1970 | } | |
7560151b QT |
1971 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
1972 | ||
2d70c103 | 1973 | |
726b8548 | 1974 | if (sess->deleted) { |
e52a8b45 AP |
1975 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); |
1976 | return; | |
1977 | } | |
1978 | ||
2d70c103 NB |
1979 | rc = __qlt_24xx_handle_abts(vha, abts, sess); |
1980 | if (rc != 0) { | |
1981 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054, | |
1982 | "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n", | |
1983 | vha->vp_idx, rc); | |
1984 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); | |
1985 | return; | |
1986 | } | |
1987 | } | |
1988 | ||
1989 | /* | |
1990 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1991 | */ | |
1992 | static void qlt_24xx_send_task_mgmt_ctio(struct scsi_qla_host *ha, | |
1993 | struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code) | |
1994 | { | |
1995 | struct atio_from_isp *atio = &mcmd->orig_iocb.atio; | |
1996 | struct ctio7_to_24xx *ctio; | |
33a5fcee | 1997 | uint16_t temp; |
2d70c103 NB |
1998 | |
1999 | ql_dbg(ql_dbg_tgt, ha, 0xe008, | |
2000 | "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n", | |
2001 | ha, atio, resp_code); | |
2002 | ||
2003 | /* Send marker if required */ | |
2004 | if (qlt_issue_marker(ha, 1) != QLA_SUCCESS) | |
2005 | return; | |
2006 | ||
2007 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(ha, NULL); | |
2008 | if (ctio == NULL) { | |
2009 | ql_dbg(ql_dbg_tgt, ha, 0xe04c, | |
2010 | "qla_target(%d): %s failed: unable to allocate " | |
2011 | "request packet\n", ha->vp_idx, __func__); | |
2012 | return; | |
2013 | } | |
2014 | ||
2015 | ctio->entry_type = CTIO_TYPE7; | |
2016 | ctio->entry_count = 1; | |
2017 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
2018 | ctio->nport_handle = mcmd->sess->loop_id; | |
ad950360 | 2019 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2020 | ctio->vp_index = ha->vp_idx; |
2021 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2022 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2023 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2024 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
2025 | ctio->u.status1.flags = (atio->u.isp24.attr << 9) | | |
ad950360 | 2026 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS); |
33a5fcee QT |
2027 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2028 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 | 2029 | ctio->u.status1.scsi_status = |
ad950360 BVA |
2030 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID); |
2031 | ctio->u.status1.response_len = cpu_to_le16(8); | |
e4b11b89 | 2032 | ctio->u.status1.sense_data[0] = resp_code; |
2d70c103 | 2033 | |
63163e06 HM |
2034 | /* Memory Barrier */ |
2035 | wmb(); | |
2d70c103 NB |
2036 | qla2x00_start_iocbs(ha, ha->req); |
2037 | } | |
2038 | ||
2039 | void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
2040 | { | |
2041 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
2042 | } | |
2043 | EXPORT_SYMBOL(qlt_free_mcmd); | |
2044 | ||
be25152c QT |
2045 | /* |
2046 | * ha->hardware_lock supposed to be held on entry. Might drop it, then | |
2047 | * reacquire | |
2048 | */ | |
2049 | void qlt_send_resp_ctio(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
2050 | uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq) | |
2051 | { | |
2052 | struct atio_from_isp *atio = &cmd->atio; | |
2053 | struct ctio7_to_24xx *ctio; | |
2054 | uint16_t temp; | |
2055 | ||
2056 | ql_dbg(ql_dbg_tgt_dif, vha, 0x3066, | |
2057 | "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, " | |
2058 | "sense_key=%02x, asc=%02x, ascq=%02x", | |
2059 | vha, atio, scsi_status, sense_key, asc, ascq); | |
2060 | ||
2061 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL); | |
2062 | if (!ctio) { | |
2063 | ql_dbg(ql_dbg_async, vha, 0x3067, | |
2064 | "qla2x00t(%ld): %s failed: unable to allocate request packet", | |
2065 | vha->host_no, __func__); | |
2066 | goto out; | |
2067 | } | |
2068 | ||
2069 | ctio->entry_type = CTIO_TYPE7; | |
2070 | ctio->entry_count = 1; | |
2071 | ctio->handle = QLA_TGT_SKIP_HANDLE; | |
2072 | ctio->nport_handle = cmd->sess->loop_id; | |
2073 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); | |
2074 | ctio->vp_index = vha->vp_idx; | |
2075 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2076 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2077 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2078 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
2079 | ctio->u.status1.flags = (atio->u.isp24.attr << 9) | | |
2080 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS); | |
2081 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); | |
2082 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2083 | ctio->u.status1.scsi_status = | |
2084 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status); | |
2085 | ctio->u.status1.response_len = cpu_to_le16(18); | |
2086 | ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio)); | |
2087 | ||
2088 | if (ctio->u.status1.residual != 0) | |
2089 | ctio->u.status1.scsi_status |= | |
2090 | cpu_to_le16(SS_RESIDUAL_UNDER); | |
2091 | ||
2092 | /* Response code and sense key */ | |
2093 | put_unaligned_le32(((0x70 << 24) | (sense_key << 8)), | |
2094 | (&ctio->u.status1.sense_data)[0]); | |
2095 | /* Additional sense length */ | |
2096 | put_unaligned_le32(0x0a, (&ctio->u.status1.sense_data)[1]); | |
2097 | /* ASC and ASCQ */ | |
2098 | put_unaligned_le32(((asc << 24) | (ascq << 16)), | |
2099 | (&ctio->u.status1.sense_data)[3]); | |
2100 | ||
2101 | /* Memory Barrier */ | |
2102 | wmb(); | |
2103 | ||
2104 | qla2x00_start_iocbs(vha, vha->req); | |
2105 | out: | |
2106 | return; | |
2107 | } | |
2108 | ||
2d70c103 NB |
2109 | /* callback from target fabric module code */ |
2110 | void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd) | |
2111 | { | |
2112 | struct scsi_qla_host *vha = mcmd->sess->vha; | |
2113 | struct qla_hw_data *ha = vha->hw; | |
2114 | unsigned long flags; | |
2115 | ||
2116 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013, | |
2117 | "TM response mcmd (%p) status %#x state %#x", | |
2118 | mcmd, mcmd->fc_tm_rsp, mcmd->flags); | |
2119 | ||
2120 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
b6a029e1 | 2121 | |
3bb67df5 | 2122 | if (!vha->flags.online || mcmd->reset_count != ha->chip_reset) { |
b6a029e1 | 2123 | /* |
3bb67df5 | 2124 | * Either the port is not online or this request was from |
b6a029e1 AE |
2125 | * previous life, just abort the processing. |
2126 | */ | |
2127 | ql_dbg(ql_dbg_async, vha, 0xe100, | |
3bb67df5 DKU |
2128 | "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
2129 | vha->flags.online, qla2x00_reset_active(vha), | |
2130 | mcmd->reset_count, ha->chip_reset); | |
b6a029e1 AE |
2131 | ha->tgt.tgt_ops->free_mcmd(mcmd); |
2132 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2133 | return; | |
2134 | } | |
2135 | ||
726b8548 QT |
2136 | if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) { |
2137 | if (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
41dc529a QT |
2138 | ELS_LOGO || |
2139 | mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
2140 | ELS_PRLO || | |
2141 | mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
2142 | ELS_TPRLO) { | |
726b8548 QT |
2143 | ql_dbg(ql_dbg_disc, vha, 0xffff, |
2144 | "TM response logo %phC status %#x state %#x", | |
2145 | mcmd->sess->port_name, mcmd->fc_tm_rsp, | |
2146 | mcmd->flags); | |
2147 | qlt_schedule_sess_for_deletion_lock(mcmd->sess); | |
2148 | } else { | |
2149 | qlt_send_notify_ack(vha, &mcmd->orig_iocb.imm_ntfy, | |
2150 | 0, 0, 0, 0, 0, 0); | |
2151 | } | |
2152 | } else { | |
d7236ac3 | 2153 | if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) |
2d70c103 NB |
2154 | qlt_24xx_send_abts_resp(vha, &mcmd->orig_iocb.abts, |
2155 | mcmd->fc_tm_rsp, false); | |
2156 | else | |
2157 | qlt_24xx_send_task_mgmt_ctio(vha, mcmd, | |
2158 | mcmd->fc_tm_rsp); | |
2159 | } | |
2160 | /* | |
2161 | * Make the callback for ->free_mcmd() to queue_work() and invoke | |
2162 | * target_put_sess_cmd() to drop cmd_kref to 1. The final | |
2163 | * target_put_sess_cmd() call will be made from TFO->check_stop_free() | |
2164 | * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd | |
2165 | * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() -> | |
2166 | * qlt_xmit_tm_rsp() returns here.. | |
2167 | */ | |
2168 | ha->tgt.tgt_ops->free_mcmd(mcmd); | |
2169 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2170 | } | |
2171 | EXPORT_SYMBOL(qlt_xmit_tm_rsp); | |
2172 | ||
2173 | /* No locks */ | |
2174 | static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm) | |
2175 | { | |
2176 | struct qla_tgt_cmd *cmd = prm->cmd; | |
2177 | ||
2178 | BUG_ON(cmd->sg_cnt == 0); | |
2179 | ||
2180 | prm->sg = (struct scatterlist *)cmd->sg; | |
2181 | prm->seg_cnt = pci_map_sg(prm->tgt->ha->pdev, cmd->sg, | |
2182 | cmd->sg_cnt, cmd->dma_data_direction); | |
2183 | if (unlikely(prm->seg_cnt == 0)) | |
2184 | goto out_err; | |
2185 | ||
2186 | prm->cmd->sg_mapped = 1; | |
2187 | ||
f83adb61 QT |
2188 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) { |
2189 | /* | |
2190 | * If greater than four sg entries then we need to allocate | |
2191 | * the continuation entries | |
2192 | */ | |
2193 | if (prm->seg_cnt > prm->tgt->datasegs_per_cmd) | |
2194 | prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt - | |
2195 | prm->tgt->datasegs_per_cmd, | |
2196 | prm->tgt->datasegs_per_cont); | |
2197 | } else { | |
2198 | /* DIF */ | |
2199 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2200 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2201 | prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz); | |
2202 | prm->tot_dsds = prm->seg_cnt; | |
2203 | } else | |
2204 | prm->tot_dsds = prm->seg_cnt; | |
2205 | ||
2206 | if (cmd->prot_sg_cnt) { | |
2207 | prm->prot_sg = cmd->prot_sg; | |
2208 | prm->prot_seg_cnt = pci_map_sg(prm->tgt->ha->pdev, | |
2209 | cmd->prot_sg, cmd->prot_sg_cnt, | |
2210 | cmd->dma_data_direction); | |
2211 | if (unlikely(prm->prot_seg_cnt == 0)) | |
2212 | goto out_err; | |
2213 | ||
2214 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2215 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2216 | /* Dif Bundling not support here */ | |
2217 | prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen, | |
2218 | cmd->blk_sz); | |
2219 | prm->tot_dsds += prm->prot_seg_cnt; | |
2220 | } else | |
2221 | prm->tot_dsds += prm->prot_seg_cnt; | |
2222 | } | |
2223 | } | |
2d70c103 | 2224 | |
2d70c103 NB |
2225 | return 0; |
2226 | ||
2227 | out_err: | |
2228 | ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe04d, | |
2229 | "qla_target(%d): PCI mapping failed: sg_cnt=%d", | |
2230 | 0, prm->cmd->sg_cnt); | |
2231 | return -1; | |
2232 | } | |
2233 | ||
f9b6721a | 2234 | static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) |
2d70c103 NB |
2235 | { |
2236 | struct qla_hw_data *ha = vha->hw; | |
2237 | ||
f9b6721a JE |
2238 | if (!cmd->sg_mapped) |
2239 | return; | |
2240 | ||
2d70c103 NB |
2241 | pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); |
2242 | cmd->sg_mapped = 0; | |
f83adb61 QT |
2243 | |
2244 | if (cmd->prot_sg_cnt) | |
2245 | pci_unmap_sg(ha->pdev, cmd->prot_sg, cmd->prot_sg_cnt, | |
2246 | cmd->dma_data_direction); | |
2247 | ||
2248 | if (cmd->ctx_dsd_alloced) | |
2249 | qla2x00_clean_dsd_pool(ha, NULL, cmd); | |
2250 | ||
2251 | if (cmd->ctx) | |
2252 | dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma); | |
2d70c103 NB |
2253 | } |
2254 | ||
2255 | static int qlt_check_reserve_free_req(struct scsi_qla_host *vha, | |
2256 | uint32_t req_cnt) | |
2257 | { | |
d29fb736 | 2258 | uint32_t cnt, cnt_in; |
2d70c103 NB |
2259 | |
2260 | if (vha->req->cnt < (req_cnt + 2)) { | |
75554b68 | 2261 | cnt = (uint16_t)RD_REG_DWORD(vha->req->req_q_out); |
d29fb736 | 2262 | cnt_in = (uint16_t)RD_REG_DWORD(vha->req->req_q_in); |
2d70c103 | 2263 | |
2d70c103 NB |
2264 | if (vha->req->ring_index < cnt) |
2265 | vha->req->cnt = cnt - vha->req->ring_index; | |
2266 | else | |
2267 | vha->req->cnt = vha->req->length - | |
2268 | (vha->req->ring_index - cnt); | |
2d70c103 | 2269 | |
bc7095a9 AB |
2270 | if (unlikely(vha->req->cnt < (req_cnt + 2))) { |
2271 | ql_dbg(ql_dbg_io, vha, 0x305a, | |
2272 | "qla_target(%d): There is no room in the request ring: vha->req->ring_index=%d, vha->req->cnt=%d, req_cnt=%d Req-out=%d Req-in=%d Req-Length=%d\n", | |
2273 | vha->vp_idx, vha->req->ring_index, | |
2274 | vha->req->cnt, req_cnt, cnt, cnt_in, | |
2275 | vha->req->length); | |
2276 | return -EAGAIN; | |
2277 | } | |
2d70c103 | 2278 | } |
bc7095a9 | 2279 | |
2d70c103 NB |
2280 | vha->req->cnt -= req_cnt; |
2281 | ||
2282 | return 0; | |
2283 | } | |
2284 | ||
2285 | /* | |
2286 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
2287 | */ | |
2288 | static inline void *qlt_get_req_pkt(struct scsi_qla_host *vha) | |
2289 | { | |
2290 | /* Adjust ring index. */ | |
2291 | vha->req->ring_index++; | |
2292 | if (vha->req->ring_index == vha->req->length) { | |
2293 | vha->req->ring_index = 0; | |
2294 | vha->req->ring_ptr = vha->req->ring; | |
2295 | } else { | |
2296 | vha->req->ring_ptr++; | |
2297 | } | |
2298 | return (cont_entry_t *)vha->req->ring_ptr; | |
2299 | } | |
2300 | ||
2301 | /* ha->hardware_lock supposed to be held on entry */ | |
2302 | static inline uint32_t qlt_make_handle(struct scsi_qla_host *vha) | |
2303 | { | |
2304 | struct qla_hw_data *ha = vha->hw; | |
2305 | uint32_t h; | |
2306 | ||
2307 | h = ha->tgt.current_handle; | |
2308 | /* always increment cmd handle */ | |
2309 | do { | |
2310 | ++h; | |
8d93f550 | 2311 | if (h > DEFAULT_OUTSTANDING_COMMANDS) |
2d70c103 NB |
2312 | h = 1; /* 0 is QLA_TGT_NULL_HANDLE */ |
2313 | if (h == ha->tgt.current_handle) { | |
667024a3 | 2314 | ql_dbg(ql_dbg_io, vha, 0x305b, |
2d70c103 NB |
2315 | "qla_target(%d): Ran out of " |
2316 | "empty cmd slots in ha %p\n", vha->vp_idx, ha); | |
2317 | h = QLA_TGT_NULL_HANDLE; | |
2318 | break; | |
2319 | } | |
2320 | } while ((h == QLA_TGT_NULL_HANDLE) || | |
2321 | (h == QLA_TGT_SKIP_HANDLE) || | |
2322 | (ha->tgt.cmds[h-1] != NULL)); | |
2323 | ||
2324 | if (h != QLA_TGT_NULL_HANDLE) | |
2325 | ha->tgt.current_handle = h; | |
2326 | ||
2327 | return h; | |
2328 | } | |
2329 | ||
2330 | /* ha->hardware_lock supposed to be held on entry */ | |
2331 | static int qlt_24xx_build_ctio_pkt(struct qla_tgt_prm *prm, | |
2332 | struct scsi_qla_host *vha) | |
2333 | { | |
2334 | uint32_t h; | |
2335 | struct ctio7_to_24xx *pkt; | |
2336 | struct qla_hw_data *ha = vha->hw; | |
2337 | struct atio_from_isp *atio = &prm->cmd->atio; | |
33a5fcee | 2338 | uint16_t temp; |
2d70c103 NB |
2339 | |
2340 | pkt = (struct ctio7_to_24xx *)vha->req->ring_ptr; | |
2341 | prm->pkt = pkt; | |
2342 | memset(pkt, 0, sizeof(*pkt)); | |
2343 | ||
2344 | pkt->entry_type = CTIO_TYPE7; | |
2345 | pkt->entry_count = (uint8_t)prm->req_cnt; | |
2346 | pkt->vp_index = vha->vp_idx; | |
2347 | ||
2348 | h = qlt_make_handle(vha); | |
2349 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { | |
2350 | /* | |
2351 | * CTIO type 7 from the firmware doesn't provide a way to | |
2352 | * know the initiator's LOOP ID, hence we can't find | |
2353 | * the session and, so, the command. | |
2354 | */ | |
2355 | return -EAGAIN; | |
2356 | } else | |
be25152c | 2357 | ha->tgt.cmds[h - 1] = prm->cmd; |
2d70c103 NB |
2358 | |
2359 | pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; | |
2360 | pkt->nport_handle = prm->cmd->loop_id; | |
ad950360 | 2361 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2362 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
2363 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2364 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2365 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
2366 | pkt->u.status0.flags |= (atio->u.isp24.attr << 9); | |
33a5fcee QT |
2367 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2368 | pkt->u.status0.ox_id = cpu_to_le16(temp); | |
2d70c103 NB |
2369 | pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset); |
2370 | ||
2d70c103 NB |
2371 | return 0; |
2372 | } | |
2373 | ||
2374 | /* | |
2375 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2376 | * that there is sufficient amount of request entries to not drop it. | |
2377 | */ | |
2378 | static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm, | |
2379 | struct scsi_qla_host *vha) | |
2380 | { | |
2381 | int cnt; | |
2382 | uint32_t *dword_ptr; | |
2383 | int enable_64bit_addressing = prm->tgt->tgt_enable_64bit_addr; | |
2384 | ||
2385 | /* Build continuation packets */ | |
2386 | while (prm->seg_cnt > 0) { | |
2387 | cont_a64_entry_t *cont_pkt64 = | |
2388 | (cont_a64_entry_t *)qlt_get_req_pkt(vha); | |
2389 | ||
2390 | /* | |
2391 | * Make sure that from cont_pkt64 none of | |
2392 | * 64-bit specific fields used for 32-bit | |
2393 | * addressing. Cast to (cont_entry_t *) for | |
2394 | * that. | |
2395 | */ | |
2396 | ||
2397 | memset(cont_pkt64, 0, sizeof(*cont_pkt64)); | |
2398 | ||
2399 | cont_pkt64->entry_count = 1; | |
2400 | cont_pkt64->sys_define = 0; | |
2401 | ||
2402 | if (enable_64bit_addressing) { | |
2403 | cont_pkt64->entry_type = CONTINUE_A64_TYPE; | |
2404 | dword_ptr = | |
2405 | (uint32_t *)&cont_pkt64->dseg_0_address; | |
2406 | } else { | |
2407 | cont_pkt64->entry_type = CONTINUE_TYPE; | |
2408 | dword_ptr = | |
2409 | (uint32_t *)&((cont_entry_t *) | |
2410 | cont_pkt64)->dseg_0_address; | |
2411 | } | |
2412 | ||
2413 | /* Load continuation entry data segments */ | |
2414 | for (cnt = 0; | |
2415 | cnt < prm->tgt->datasegs_per_cont && prm->seg_cnt; | |
2416 | cnt++, prm->seg_cnt--) { | |
2417 | *dword_ptr++ = | |
2418 | cpu_to_le32(pci_dma_lo32 | |
2419 | (sg_dma_address(prm->sg))); | |
2420 | if (enable_64bit_addressing) { | |
2421 | *dword_ptr++ = | |
2422 | cpu_to_le32(pci_dma_hi32 | |
2423 | (sg_dma_address | |
2424 | (prm->sg))); | |
2425 | } | |
2426 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); | |
2427 | ||
2d70c103 NB |
2428 | prm->sg = sg_next(prm->sg); |
2429 | } | |
2430 | } | |
2431 | } | |
2432 | ||
2433 | /* | |
2434 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2435 | * that there is sufficient amount of request entries to not drop it. | |
2436 | */ | |
2437 | static void qlt_load_data_segments(struct qla_tgt_prm *prm, | |
2438 | struct scsi_qla_host *vha) | |
2439 | { | |
2440 | int cnt; | |
2441 | uint32_t *dword_ptr; | |
2442 | int enable_64bit_addressing = prm->tgt->tgt_enable_64bit_addr; | |
2443 | struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt; | |
2444 | ||
2d70c103 NB |
2445 | pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen); |
2446 | ||
2447 | /* Setup packet address segment pointer */ | |
2448 | dword_ptr = pkt24->u.status0.dseg_0_address; | |
2449 | ||
2450 | /* Set total data segment count */ | |
2451 | if (prm->seg_cnt) | |
2452 | pkt24->dseg_count = cpu_to_le16(prm->seg_cnt); | |
2453 | ||
2454 | if (prm->seg_cnt == 0) { | |
2455 | /* No data transfer */ | |
2456 | *dword_ptr++ = 0; | |
2457 | *dword_ptr = 0; | |
2458 | return; | |
2459 | } | |
2460 | ||
2461 | /* If scatter gather */ | |
2d70c103 NB |
2462 | |
2463 | /* Load command entry data segments */ | |
2464 | for (cnt = 0; | |
2465 | (cnt < prm->tgt->datasegs_per_cmd) && prm->seg_cnt; | |
2466 | cnt++, prm->seg_cnt--) { | |
2467 | *dword_ptr++ = | |
2468 | cpu_to_le32(pci_dma_lo32(sg_dma_address(prm->sg))); | |
2469 | if (enable_64bit_addressing) { | |
2470 | *dword_ptr++ = | |
2471 | cpu_to_le32(pci_dma_hi32( | |
2472 | sg_dma_address(prm->sg))); | |
2473 | } | |
2474 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); | |
2475 | ||
2d70c103 NB |
2476 | prm->sg = sg_next(prm->sg); |
2477 | } | |
2478 | ||
2479 | qlt_load_cont_data_segments(prm, vha); | |
2480 | } | |
2481 | ||
2482 | static inline int qlt_has_data(struct qla_tgt_cmd *cmd) | |
2483 | { | |
2484 | return cmd->bufflen > 0; | |
2485 | } | |
2486 | ||
be25152c QT |
2487 | static void qlt_print_dif_err(struct qla_tgt_prm *prm) |
2488 | { | |
2489 | struct qla_tgt_cmd *cmd; | |
2490 | struct scsi_qla_host *vha; | |
2491 | ||
2492 | /* asc 0x10=dif error */ | |
2493 | if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) { | |
2494 | cmd = prm->cmd; | |
2495 | vha = cmd->vha; | |
2496 | /* ASCQ */ | |
2497 | switch (prm->sense_buffer[13]) { | |
2498 | case 1: | |
2499 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
2500 | "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] " | |
2501 | "se_cmd=%p tag[%x]", | |
2502 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2503 | cmd->atio.u.isp24.exchange_addr); | |
2504 | break; | |
2505 | case 2: | |
2506 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
2507 | "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] " | |
2508 | "se_cmd=%p tag[%x]", | |
2509 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2510 | cmd->atio.u.isp24.exchange_addr); | |
2511 | break; | |
2512 | case 3: | |
2513 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
2514 | "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] " | |
2515 | "se_cmd=%p tag[%x]", | |
2516 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2517 | cmd->atio.u.isp24.exchange_addr); | |
2518 | break; | |
2519 | default: | |
2520 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
2521 | "BE detected Dif ERR: lba[%llx|%lld] len[%x] " | |
2522 | "se_cmd=%p tag[%x]", | |
2523 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2524 | cmd->atio.u.isp24.exchange_addr); | |
2525 | break; | |
2526 | } | |
2527 | ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xffff, cmd->cdb, 16); | |
2528 | } | |
2529 | } | |
2530 | ||
2d70c103 NB |
2531 | /* |
2532 | * Called without ha->hardware_lock held | |
2533 | */ | |
2534 | static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd, | |
2535 | struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status, | |
2536 | uint32_t *full_req_cnt) | |
2537 | { | |
2538 | struct qla_tgt *tgt = cmd->tgt; | |
2539 | struct scsi_qla_host *vha = tgt->vha; | |
2540 | struct qla_hw_data *ha = vha->hw; | |
2541 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
2542 | ||
2d70c103 NB |
2543 | prm->cmd = cmd; |
2544 | prm->tgt = tgt; | |
2545 | prm->rq_result = scsi_status; | |
2546 | prm->sense_buffer = &cmd->sense_buffer[0]; | |
2547 | prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER; | |
2548 | prm->sg = NULL; | |
2549 | prm->seg_cnt = -1; | |
2550 | prm->req_cnt = 1; | |
2551 | prm->add_status_pkt = 0; | |
2552 | ||
2d70c103 NB |
2553 | /* Send marker if required */ |
2554 | if (qlt_issue_marker(vha, 0) != QLA_SUCCESS) | |
2555 | return -EFAULT; | |
2556 | ||
2d70c103 NB |
2557 | if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) { |
2558 | if (qlt_pci_map_calc_cnt(prm) != 0) | |
2559 | return -EAGAIN; | |
2560 | } | |
2561 | ||
2562 | *full_req_cnt = prm->req_cnt; | |
2563 | ||
2564 | if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) { | |
2565 | prm->residual = se_cmd->residual_count; | |
667024a3 | 2566 | ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x305c, |
649ee054 BVA |
2567 | "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2568 | prm->residual, se_cmd->tag, | |
2569 | se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0, | |
2570 | cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2571 | prm->rq_result |= SS_RESIDUAL_UNDER; |
2572 | } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { | |
2573 | prm->residual = se_cmd->residual_count; | |
667024a3 | 2574 | ql_dbg(ql_dbg_io, vha, 0x305d, |
649ee054 BVA |
2575 | "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2576 | prm->residual, se_cmd->tag, se_cmd->t_task_cdb ? | |
2577 | se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2578 | prm->rq_result |= SS_RESIDUAL_OVER; |
2579 | } | |
2580 | ||
2581 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
2582 | /* | |
2583 | * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be | |
2584 | * ignored in *xmit_response() below | |
2585 | */ | |
2586 | if (qlt_has_data(cmd)) { | |
2587 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer) || | |
2588 | (IS_FWI2_CAPABLE(ha) && | |
2589 | (prm->rq_result != 0))) { | |
2590 | prm->add_status_pkt = 1; | |
2591 | (*full_req_cnt)++; | |
2592 | } | |
2593 | } | |
2594 | } | |
2595 | ||
2d70c103 NB |
2596 | return 0; |
2597 | } | |
2598 | ||
2599 | static inline int qlt_need_explicit_conf(struct qla_hw_data *ha, | |
2600 | struct qla_tgt_cmd *cmd, int sending_sense) | |
2601 | { | |
2602 | if (ha->tgt.enable_class_2) | |
2603 | return 0; | |
2604 | ||
2605 | if (sending_sense) | |
2606 | return cmd->conf_compl_supported; | |
2607 | else | |
2608 | return ha->tgt.enable_explicit_conf && | |
2609 | cmd->conf_compl_supported; | |
2610 | } | |
2611 | ||
2d70c103 NB |
2612 | static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio, |
2613 | struct qla_tgt_prm *prm) | |
2614 | { | |
2615 | prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len, | |
2616 | (uint32_t)sizeof(ctio->u.status1.sense_data)); | |
ad950360 | 2617 | ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS); |
2d70c103 | 2618 | if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 0)) { |
ad950360 | 2619 | ctio->u.status0.flags |= cpu_to_le16( |
2d70c103 NB |
2620 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2621 | CTIO7_FLAGS_CONFORM_REQ); | |
2622 | } | |
2623 | ctio->u.status0.residual = cpu_to_le32(prm->residual); | |
2624 | ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result); | |
2625 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) { | |
2626 | int i; | |
2627 | ||
2628 | if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 1)) { | |
df2e32c5 | 2629 | if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) { |
2d70c103 NB |
2630 | ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe017, |
2631 | "Skipping EXPLICIT_CONFORM and " | |
2632 | "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ " | |
2633 | "non GOOD status\n"); | |
2634 | goto skip_explict_conf; | |
2635 | } | |
ad950360 | 2636 | ctio->u.status1.flags |= cpu_to_le16( |
2d70c103 NB |
2637 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2638 | CTIO7_FLAGS_CONFORM_REQ); | |
2639 | } | |
2640 | skip_explict_conf: | |
2641 | ctio->u.status1.flags &= | |
ad950360 | 2642 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2643 | ctio->u.status1.flags |= |
ad950360 | 2644 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 | 2645 | ctio->u.status1.scsi_status |= |
ad950360 | 2646 | cpu_to_le16(SS_SENSE_LEN_VALID); |
2d70c103 NB |
2647 | ctio->u.status1.sense_length = |
2648 | cpu_to_le16(prm->sense_buffer_len); | |
2649 | for (i = 0; i < prm->sense_buffer_len/4; i++) | |
2650 | ((uint32_t *)ctio->u.status1.sense_data)[i] = | |
2651 | cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]); | |
be25152c QT |
2652 | |
2653 | qlt_print_dif_err(prm); | |
2654 | ||
2d70c103 NB |
2655 | } else { |
2656 | ctio->u.status1.flags &= | |
ad950360 | 2657 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2658 | ctio->u.status1.flags |= |
ad950360 | 2659 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 NB |
2660 | ctio->u.status1.sense_length = 0; |
2661 | memset(ctio->u.status1.sense_data, 0, | |
2662 | sizeof(ctio->u.status1.sense_data)); | |
2663 | } | |
2664 | ||
2665 | /* Sense with len > 24, is it possible ??? */ | |
2666 | } | |
2667 | ||
f83adb61 QT |
2668 | static inline int |
2669 | qlt_hba_err_chk_enabled(struct se_cmd *se_cmd) | |
2670 | { | |
f83adb61 QT |
2671 | switch (se_cmd->prot_op) { |
2672 | case TARGET_PROT_DOUT_INSERT: | |
2673 | case TARGET_PROT_DIN_STRIP: | |
2674 | if (ql2xenablehba_err_chk >= 1) | |
2675 | return 1; | |
2676 | break; | |
2677 | case TARGET_PROT_DOUT_PASS: | |
2678 | case TARGET_PROT_DIN_PASS: | |
2679 | if (ql2xenablehba_err_chk >= 2) | |
2680 | return 1; | |
2681 | break; | |
2682 | case TARGET_PROT_DIN_INSERT: | |
2683 | case TARGET_PROT_DOUT_STRIP: | |
2684 | return 1; | |
2685 | default: | |
2686 | break; | |
2687 | } | |
2688 | return 0; | |
2689 | } | |
2690 | ||
be25152c QT |
2691 | static inline int |
2692 | qla_tgt_ref_mask_check(struct se_cmd *se_cmd) | |
2693 | { | |
2694 | switch (se_cmd->prot_op) { | |
2695 | case TARGET_PROT_DIN_INSERT: | |
2696 | case TARGET_PROT_DOUT_INSERT: | |
2697 | case TARGET_PROT_DIN_STRIP: | |
2698 | case TARGET_PROT_DOUT_STRIP: | |
2699 | case TARGET_PROT_DIN_PASS: | |
2700 | case TARGET_PROT_DOUT_PASS: | |
2701 | return 1; | |
2702 | default: | |
2703 | return 0; | |
2704 | } | |
2705 | return 0; | |
2706 | } | |
2707 | ||
f83adb61 | 2708 | /* |
be25152c | 2709 | * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command |
f83adb61 | 2710 | */ |
be25152c QT |
2711 | static void |
2712 | qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx, | |
2713 | uint16_t *pfw_prot_opts) | |
f83adb61 | 2714 | { |
be25152c | 2715 | struct se_cmd *se_cmd = &cmd->se_cmd; |
f83adb61 | 2716 | uint32_t lba = 0xffffffff & se_cmd->t_task_lba; |
be25152c QT |
2717 | scsi_qla_host_t *vha = cmd->tgt->vha; |
2718 | struct qla_hw_data *ha = vha->hw; | |
2719 | uint32_t t32 = 0; | |
f83adb61 | 2720 | |
be25152c QT |
2721 | /* |
2722 | * wait till Mode Sense/Select cmd, modepage Ah, subpage 2 | |
f83adb61 QT |
2723 | * have been immplemented by TCM, before AppTag is avail. |
2724 | * Look for modesense_handlers[] | |
2725 | */ | |
c7ee3bd4 | 2726 | ctx->app_tag = 0; |
f83adb61 QT |
2727 | ctx->app_tag_mask[0] = 0x0; |
2728 | ctx->app_tag_mask[1] = 0x0; | |
2729 | ||
be25152c QT |
2730 | if (IS_PI_UNINIT_CAPABLE(ha)) { |
2731 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
2732 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
2733 | *pfw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
2734 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
2735 | *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
2736 | } | |
2737 | ||
2738 | t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts); | |
2739 | ||
f83adb61 QT |
2740 | switch (se_cmd->prot_type) { |
2741 | case TARGET_DIF_TYPE0_PROT: | |
2742 | /* | |
be25152c QT |
2743 | * No check for ql2xenablehba_err_chk, as it |
2744 | * would be an I/O error if hba tag generation | |
2745 | * is not done. | |
f83adb61 QT |
2746 | */ |
2747 | ctx->ref_tag = cpu_to_le32(lba); | |
f83adb61 QT |
2748 | /* enable ALL bytes of the ref tag */ |
2749 | ctx->ref_tag_mask[0] = 0xff; | |
2750 | ctx->ref_tag_mask[1] = 0xff; | |
2751 | ctx->ref_tag_mask[2] = 0xff; | |
2752 | ctx->ref_tag_mask[3] = 0xff; | |
2753 | break; | |
f83adb61 | 2754 | case TARGET_DIF_TYPE1_PROT: |
be25152c QT |
2755 | /* |
2756 | * For TYPE 1 protection: 16 bit GUARD tag, 32 bit | |
2757 | * REF tag, and 16 bit app tag. | |
2758 | */ | |
2759 | ctx->ref_tag = cpu_to_le32(lba); | |
2760 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
2761 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
2762 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2763 | break; | |
2764 | } | |
2765 | /* enable ALL bytes of the ref tag */ | |
2766 | ctx->ref_tag_mask[0] = 0xff; | |
2767 | ctx->ref_tag_mask[1] = 0xff; | |
2768 | ctx->ref_tag_mask[2] = 0xff; | |
2769 | ctx->ref_tag_mask[3] = 0xff; | |
2770 | break; | |
f83adb61 | 2771 | case TARGET_DIF_TYPE2_PROT: |
be25152c QT |
2772 | /* |
2773 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF | |
2774 | * tag has to match LBA in CDB + N | |
2775 | */ | |
2776 | ctx->ref_tag = cpu_to_le32(lba); | |
2777 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
2778 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
2779 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2780 | break; | |
2781 | } | |
2782 | /* enable ALL bytes of the ref tag */ | |
2783 | ctx->ref_tag_mask[0] = 0xff; | |
2784 | ctx->ref_tag_mask[1] = 0xff; | |
2785 | ctx->ref_tag_mask[2] = 0xff; | |
2786 | ctx->ref_tag_mask[3] = 0xff; | |
2787 | break; | |
f83adb61 | 2788 | case TARGET_DIF_TYPE3_PROT: |
be25152c QT |
2789 | /* For TYPE 3 protection: 16 bit GUARD only */ |
2790 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2791 | ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] = | |
2792 | ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00; | |
2793 | break; | |
f83adb61 QT |
2794 | } |
2795 | } | |
2796 | ||
f83adb61 QT |
2797 | static inline int |
2798 | qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) | |
2799 | { | |
2800 | uint32_t *cur_dsd; | |
f83adb61 QT |
2801 | uint32_t transfer_length = 0; |
2802 | uint32_t data_bytes; | |
2803 | uint32_t dif_bytes; | |
2804 | uint8_t bundling = 1; | |
2805 | uint8_t *clr_ptr; | |
2806 | struct crc_context *crc_ctx_pkt = NULL; | |
2807 | struct qla_hw_data *ha; | |
2808 | struct ctio_crc2_to_fw *pkt; | |
2809 | dma_addr_t crc_ctx_dma; | |
2810 | uint16_t fw_prot_opts = 0; | |
2811 | struct qla_tgt_cmd *cmd = prm->cmd; | |
2812 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
2813 | uint32_t h; | |
2814 | struct atio_from_isp *atio = &prm->cmd->atio; | |
be25152c | 2815 | struct qla_tc_param tc; |
c7ee3bd4 | 2816 | uint16_t t16; |
f83adb61 | 2817 | |
f83adb61 QT |
2818 | ha = vha->hw; |
2819 | ||
2820 | pkt = (struct ctio_crc2_to_fw *)vha->req->ring_ptr; | |
2821 | prm->pkt = pkt; | |
2822 | memset(pkt, 0, sizeof(*pkt)); | |
2823 | ||
2824 | ql_dbg(ql_dbg_tgt, vha, 0xe071, | |
2825 | "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n", | |
2826 | vha->vp_idx, __func__, se_cmd, se_cmd->prot_op, | |
2827 | prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba); | |
2828 | ||
2829 | if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) || | |
2830 | (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP)) | |
2831 | bundling = 0; | |
2832 | ||
2833 | /* Compute dif len and adjust data len to incude protection */ | |
2834 | data_bytes = cmd->bufflen; | |
2835 | dif_bytes = (data_bytes / cmd->blk_sz) * 8; | |
2836 | ||
2837 | switch (se_cmd->prot_op) { | |
2838 | case TARGET_PROT_DIN_INSERT: | |
2839 | case TARGET_PROT_DOUT_STRIP: | |
2840 | transfer_length = data_bytes; | |
be25152c QT |
2841 | if (cmd->prot_sg_cnt) |
2842 | data_bytes += dif_bytes; | |
f83adb61 | 2843 | break; |
f83adb61 QT |
2844 | case TARGET_PROT_DIN_STRIP: |
2845 | case TARGET_PROT_DOUT_INSERT: | |
2846 | case TARGET_PROT_DIN_PASS: | |
2847 | case TARGET_PROT_DOUT_PASS: | |
2848 | transfer_length = data_bytes + dif_bytes; | |
2849 | break; | |
f83adb61 QT |
2850 | default: |
2851 | BUG(); | |
2852 | break; | |
2853 | } | |
2854 | ||
2855 | if (!qlt_hba_err_chk_enabled(se_cmd)) | |
2856 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ | |
2857 | /* HBA error checking enabled */ | |
2858 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
2859 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
2860 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
2861 | fw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
2862 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
2863 | fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
2864 | } | |
2865 | ||
2866 | switch (se_cmd->prot_op) { | |
2867 | case TARGET_PROT_DIN_INSERT: | |
2868 | case TARGET_PROT_DOUT_INSERT: | |
2869 | fw_prot_opts |= PO_MODE_DIF_INSERT; | |
2870 | break; | |
2871 | case TARGET_PROT_DIN_STRIP: | |
2872 | case TARGET_PROT_DOUT_STRIP: | |
2873 | fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
2874 | break; | |
2875 | case TARGET_PROT_DIN_PASS: | |
2876 | case TARGET_PROT_DOUT_PASS: | |
2877 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
2878 | /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */ | |
2879 | break; | |
2880 | default:/* Normal Request */ | |
2881 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
2882 | break; | |
2883 | } | |
2884 | ||
f83adb61 QT |
2885 | /* ---- PKT ---- */ |
2886 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
2887 | pkt->entry_type = CTIO_CRC2; | |
2888 | pkt->entry_count = 1; | |
2889 | pkt->vp_index = vha->vp_idx; | |
2890 | ||
2891 | h = qlt_make_handle(vha); | |
2892 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { | |
2893 | /* | |
2894 | * CTIO type 7 from the firmware doesn't provide a way to | |
2895 | * know the initiator's LOOP ID, hence we can't find | |
2896 | * the session and, so, the command. | |
2897 | */ | |
2898 | return -EAGAIN; | |
2899 | } else | |
2900 | ha->tgt.cmds[h-1] = prm->cmd; | |
2901 | ||
f83adb61 | 2902 | pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; |
be25152c | 2903 | pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id); |
ad950360 | 2904 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
f83adb61 QT |
2905 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
2906 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2907 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2908 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
c7ee3bd4 QT |
2909 | |
2910 | /* silence compile warning */ | |
2911 | t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); | |
2912 | pkt->ox_id = cpu_to_le16(t16); | |
2913 | ||
2914 | t16 = (atio->u.isp24.attr << 9); | |
2915 | pkt->flags |= cpu_to_le16(t16); | |
f83adb61 QT |
2916 | pkt->relative_offset = cpu_to_le32(prm->cmd->offset); |
2917 | ||
2918 | /* Set transfer direction */ | |
2919 | if (cmd->dma_data_direction == DMA_TO_DEVICE) | |
ad950360 | 2920 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN); |
f83adb61 | 2921 | else if (cmd->dma_data_direction == DMA_FROM_DEVICE) |
ad950360 | 2922 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT); |
f83adb61 | 2923 | |
f83adb61 QT |
2924 | pkt->dseg_count = prm->tot_dsds; |
2925 | /* Fibre channel byte count */ | |
2926 | pkt->transfer_length = cpu_to_le32(transfer_length); | |
2927 | ||
f83adb61 QT |
2928 | /* ----- CRC context -------- */ |
2929 | ||
2930 | /* Allocate CRC context from global pool */ | |
2931 | crc_ctx_pkt = cmd->ctx = | |
2932 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
2933 | ||
2934 | if (!crc_ctx_pkt) | |
2935 | goto crc_queuing_error; | |
2936 | ||
2937 | /* Zero out CTX area. */ | |
2938 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
2939 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
2940 | ||
2941 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
2942 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
2943 | ||
2944 | /* Set handle */ | |
2945 | crc_ctx_pkt->handle = pkt->handle; | |
2946 | ||
be25152c | 2947 | qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts); |
f83adb61 QT |
2948 | |
2949 | pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
2950 | pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
2951 | pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
2952 | ||
f83adb61 QT |
2953 | if (!bundling) { |
2954 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
2955 | } else { | |
2956 | /* | |
2957 | * Configure Bundling if we need to fetch interlaving | |
2958 | * protection PCI accesses | |
2959 | */ | |
2960 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
2961 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
2962 | crc_ctx_pkt->u.bundling.dseg_count = | |
2963 | cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt); | |
2964 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
2965 | } | |
2966 | ||
2967 | /* Finish the common fields of CRC pkt */ | |
2968 | crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz); | |
2969 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
2970 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
ad950360 | 2971 | crc_ctx_pkt->guard_seed = cpu_to_le16(0); |
f83adb61 | 2972 | |
be25152c QT |
2973 | memset((uint8_t *)&tc, 0 , sizeof(tc)); |
2974 | tc.vha = vha; | |
2975 | tc.blk_sz = cmd->blk_sz; | |
2976 | tc.bufflen = cmd->bufflen; | |
2977 | tc.sg = cmd->sg; | |
2978 | tc.prot_sg = cmd->prot_sg; | |
2979 | tc.ctx = crc_ctx_pkt; | |
2980 | tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced; | |
f83adb61 QT |
2981 | |
2982 | /* Walks data segments */ | |
ad950360 | 2983 | pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR); |
f83adb61 QT |
2984 | |
2985 | if (!bundling && prm->prot_seg_cnt) { | |
2986 | if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd, | |
be25152c | 2987 | prm->tot_dsds, &tc)) |
f83adb61 QT |
2988 | goto crc_queuing_error; |
2989 | } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd, | |
be25152c | 2990 | (prm->tot_dsds - prm->prot_seg_cnt), &tc)) |
f83adb61 QT |
2991 | goto crc_queuing_error; |
2992 | ||
2993 | if (bundling && prm->prot_seg_cnt) { | |
2994 | /* Walks dif segments */ | |
c7ee3bd4 | 2995 | pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA; |
f83adb61 QT |
2996 | |
2997 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
2998 | if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd, | |
be25152c | 2999 | prm->prot_seg_cnt, &tc)) |
f83adb61 QT |
3000 | goto crc_queuing_error; |
3001 | } | |
3002 | return QLA_SUCCESS; | |
3003 | ||
3004 | crc_queuing_error: | |
3005 | /* Cleanup will be performed by the caller */ | |
be25152c | 3006 | vha->hw->tgt.cmds[h - 1] = NULL; |
f83adb61 QT |
3007 | |
3008 | return QLA_FUNCTION_FAILED; | |
3009 | } | |
3010 | ||
2d70c103 NB |
3011 | /* |
3012 | * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and * | |
3013 | * QLA_TGT_XMIT_STATUS for >= 24xx silicon | |
3014 | */ | |
3015 | int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, | |
3016 | uint8_t scsi_status) | |
3017 | { | |
3018 | struct scsi_qla_host *vha = cmd->vha; | |
3019 | struct qla_hw_data *ha = vha->hw; | |
3020 | struct ctio7_to_24xx *pkt; | |
3021 | struct qla_tgt_prm prm; | |
3022 | uint32_t full_req_cnt = 0; | |
3023 | unsigned long flags = 0; | |
3024 | int res; | |
3025 | ||
a6ca8878 | 3026 | spin_lock_irqsave(&ha->hardware_lock, flags); |
726b8548 | 3027 | if (cmd->sess && cmd->sess->deleted) { |
a6ca8878 AP |
3028 | cmd->state = QLA_TGT_STATE_PROCESSED; |
3029 | if (cmd->sess->logout_completed) | |
3030 | /* no need to terminate. FW already freed exchange. */ | |
3031 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
3032 | else | |
a07100e0 | 3033 | qlt_send_term_exchange(vha, cmd, &cmd->atio, 1, 0); |
a6ca8878 AP |
3034 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3035 | return 0; | |
3036 | } | |
3037 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3038 | ||
2d70c103 | 3039 | memset(&prm, 0, sizeof(prm)); |
2d70c103 NB |
3040 | |
3041 | ql_dbg(ql_dbg_tgt, cmd->vha, 0xe018, | |
f83adb61 QT |
3042 | "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p]\n", |
3043 | (xmit_type & QLA_TGT_XMIT_STATUS) ? | |
3044 | 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction, | |
3045 | &cmd->se_cmd); | |
2d70c103 NB |
3046 | |
3047 | res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status, | |
3048 | &full_req_cnt); | |
3049 | if (unlikely(res != 0)) { | |
2d70c103 NB |
3050 | return res; |
3051 | } | |
3052 | ||
3053 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
3054 | ||
ce1025cd HM |
3055 | if (xmit_type == QLA_TGT_XMIT_STATUS) |
3056 | vha->tgt_counters.core_qla_snd_status++; | |
3057 | else | |
3058 | vha->tgt_counters.core_qla_que_buf++; | |
3059 | ||
ec7193e2 | 3060 | if (!ha->flags.fw_started || cmd->reset_count != ha->chip_reset) { |
b6a029e1 | 3061 | /* |
3bb67df5 | 3062 | * Either the port is not online or this request was from |
b6a029e1 AE |
3063 | * previous life, just abort the processing. |
3064 | */ | |
3065 | cmd->state = QLA_TGT_STATE_PROCESSED; | |
3066 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
3067 | ql_dbg(ql_dbg_async, vha, 0xe101, | |
3bb67df5 DKU |
3068 | "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3069 | vha->flags.online, qla2x00_reset_active(vha), | |
3070 | cmd->reset_count, ha->chip_reset); | |
b6a029e1 AE |
3071 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3072 | return 0; | |
3073 | } | |
3074 | ||
2d70c103 NB |
3075 | /* Does F/W have an IOCBs for this request */ |
3076 | res = qlt_check_reserve_free_req(vha, full_req_cnt); | |
3077 | if (unlikely(res)) | |
3078 | goto out_unmap_unlock; | |
3079 | ||
f83adb61 QT |
3080 | if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA)) |
3081 | res = qlt_build_ctio_crc2_pkt(&prm, vha); | |
3082 | else | |
3083 | res = qlt_24xx_build_ctio_pkt(&prm, vha); | |
810e30bc QT |
3084 | if (unlikely(res != 0)) { |
3085 | vha->req->cnt += full_req_cnt; | |
2d70c103 | 3086 | goto out_unmap_unlock; |
810e30bc | 3087 | } |
2d70c103 NB |
3088 | |
3089 | pkt = (struct ctio7_to_24xx *)prm.pkt; | |
3090 | ||
3091 | if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) { | |
3092 | pkt->u.status0.flags |= | |
ad950360 | 3093 | cpu_to_le16(CTIO7_FLAGS_DATA_IN | |
2d70c103 NB |
3094 | CTIO7_FLAGS_STATUS_MODE_0); |
3095 | ||
f83adb61 QT |
3096 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) |
3097 | qlt_load_data_segments(&prm, vha); | |
2d70c103 NB |
3098 | |
3099 | if (prm.add_status_pkt == 0) { | |
3100 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
3101 | pkt->u.status0.scsi_status = | |
3102 | cpu_to_le16(prm.rq_result); | |
3103 | pkt->u.status0.residual = | |
3104 | cpu_to_le32(prm.residual); | |
ad950360 | 3105 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 NB |
3106 | CTIO7_FLAGS_SEND_STATUS); |
3107 | if (qlt_need_explicit_conf(ha, cmd, 0)) { | |
3108 | pkt->u.status0.flags |= | |
ad950360 | 3109 | cpu_to_le16( |
2d70c103 NB |
3110 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
3111 | CTIO7_FLAGS_CONFORM_REQ); | |
3112 | } | |
3113 | } | |
3114 | ||
3115 | } else { | |
3116 | /* | |
3117 | * We have already made sure that there is sufficient | |
3118 | * amount of request entries to not drop HW lock in | |
3119 | * req_pkt(). | |
3120 | */ | |
3121 | struct ctio7_to_24xx *ctio = | |
3122 | (struct ctio7_to_24xx *)qlt_get_req_pkt(vha); | |
3123 | ||
667024a3 AE |
3124 | ql_dbg(ql_dbg_io, vha, 0x305e, |
3125 | "Building additional status packet 0x%p.\n", | |
3126 | ctio); | |
2d70c103 | 3127 | |
f83adb61 QT |
3128 | /* |
3129 | * T10Dif: ctio_crc2_to_fw overlay ontop of | |
3130 | * ctio7_to_24xx | |
3131 | */ | |
2d70c103 | 3132 | memcpy(ctio, pkt, sizeof(*ctio)); |
f83adb61 | 3133 | /* reset back to CTIO7 */ |
2d70c103 | 3134 | ctio->entry_count = 1; |
f83adb61 | 3135 | ctio->entry_type = CTIO_TYPE7; |
2d70c103 | 3136 | ctio->dseg_count = 0; |
ad950360 | 3137 | ctio->u.status1.flags &= ~cpu_to_le16( |
2d70c103 NB |
3138 | CTIO7_FLAGS_DATA_IN); |
3139 | ||
3140 | /* Real finish is ctio_m1's finish */ | |
3141 | pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK; | |
ad950360 | 3142 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 | 3143 | CTIO7_FLAGS_DONT_RET_CTIO); |
f83adb61 QT |
3144 | |
3145 | /* qlt_24xx_init_ctio_to_isp will correct | |
3146 | * all neccessary fields that's part of CTIO7. | |
3147 | * There should be no residual of CTIO-CRC2 data. | |
3148 | */ | |
2d70c103 NB |
3149 | qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio, |
3150 | &prm); | |
3151 | pr_debug("Status CTIO7: %p\n", ctio); | |
3152 | } | |
3153 | } else | |
3154 | qlt_24xx_init_ctio_to_isp(pkt, &prm); | |
3155 | ||
3156 | ||
3157 | cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */ | |
d564a372 | 3158 | cmd->cmd_sent_to_fw = 1; |
2d70c103 | 3159 | |
63163e06 HM |
3160 | /* Memory Barrier */ |
3161 | wmb(); | |
2d70c103 NB |
3162 | qla2x00_start_iocbs(vha, vha->req); |
3163 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3164 | ||
3165 | return 0; | |
3166 | ||
3167 | out_unmap_unlock: | |
f9b6721a | 3168 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
3169 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3170 | ||
3171 | return res; | |
3172 | } | |
3173 | EXPORT_SYMBOL(qlt_xmit_response); | |
3174 | ||
3175 | int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) | |
3176 | { | |
3177 | struct ctio7_to_24xx *pkt; | |
3178 | struct scsi_qla_host *vha = cmd->vha; | |
3179 | struct qla_hw_data *ha = vha->hw; | |
3180 | struct qla_tgt *tgt = cmd->tgt; | |
3181 | struct qla_tgt_prm prm; | |
3182 | unsigned long flags; | |
3183 | int res = 0; | |
3184 | ||
3185 | memset(&prm, 0, sizeof(prm)); | |
3186 | prm.cmd = cmd; | |
3187 | prm.tgt = tgt; | |
3188 | prm.sg = NULL; | |
3189 | prm.req_cnt = 1; | |
3190 | ||
3191 | /* Send marker if required */ | |
3192 | if (qlt_issue_marker(vha, 0) != QLA_SUCCESS) | |
3193 | return -EIO; | |
3194 | ||
2d70c103 NB |
3195 | /* Calculate number of entries and segments required */ |
3196 | if (qlt_pci_map_calc_cnt(&prm) != 0) | |
3197 | return -EAGAIN; | |
3198 | ||
3199 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
3200 | ||
ec7193e2 | 3201 | if (!ha->flags.fw_started || (cmd->reset_count != ha->chip_reset) || |
726b8548 | 3202 | (cmd->sess && cmd->sess->deleted)) { |
b6a029e1 | 3203 | /* |
3bb67df5 | 3204 | * Either the port is not online or this request was from |
b6a029e1 AE |
3205 | * previous life, just abort the processing. |
3206 | */ | |
3207 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
3208 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
3209 | ql_dbg(ql_dbg_async, vha, 0xe102, | |
3bb67df5 DKU |
3210 | "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3211 | vha->flags.online, qla2x00_reset_active(vha), | |
3212 | cmd->reset_count, ha->chip_reset); | |
b6a029e1 AE |
3213 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3214 | return 0; | |
3215 | } | |
3216 | ||
2d70c103 NB |
3217 | /* Does F/W have an IOCBs for this request */ |
3218 | res = qlt_check_reserve_free_req(vha, prm.req_cnt); | |
3219 | if (res != 0) | |
3220 | goto out_unlock_free_unmap; | |
f83adb61 QT |
3221 | if (cmd->se_cmd.prot_op) |
3222 | res = qlt_build_ctio_crc2_pkt(&prm, vha); | |
3223 | else | |
3224 | res = qlt_24xx_build_ctio_pkt(&prm, vha); | |
2d70c103 | 3225 | |
810e30bc QT |
3226 | if (unlikely(res != 0)) { |
3227 | vha->req->cnt += prm.req_cnt; | |
2d70c103 | 3228 | goto out_unlock_free_unmap; |
810e30bc QT |
3229 | } |
3230 | ||
2d70c103 | 3231 | pkt = (struct ctio7_to_24xx *)prm.pkt; |
ad950360 | 3232 | pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT | |
2d70c103 | 3233 | CTIO7_FLAGS_STATUS_MODE_0); |
f83adb61 QT |
3234 | |
3235 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) | |
3236 | qlt_load_data_segments(&prm, vha); | |
2d70c103 NB |
3237 | |
3238 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
d564a372 | 3239 | cmd->cmd_sent_to_fw = 1; |
2d70c103 | 3240 | |
63163e06 HM |
3241 | /* Memory Barrier */ |
3242 | wmb(); | |
2d70c103 NB |
3243 | qla2x00_start_iocbs(vha, vha->req); |
3244 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3245 | ||
3246 | return res; | |
3247 | ||
3248 | out_unlock_free_unmap: | |
f9b6721a | 3249 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
3250 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3251 | ||
3252 | return res; | |
3253 | } | |
3254 | EXPORT_SYMBOL(qlt_rdy_to_xfer); | |
3255 | ||
f83adb61 QT |
3256 | |
3257 | /* | |
be25152c | 3258 | * it is assumed either hardware_lock or qpair lock is held. |
f83adb61 | 3259 | */ |
be25152c | 3260 | static void |
f83adb61 | 3261 | qlt_handle_dif_error(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, |
be25152c | 3262 | struct ctio_crc_from_fw *sts) |
f83adb61 QT |
3263 | { |
3264 | uint8_t *ap = &sts->actual_dif[0]; | |
3265 | uint8_t *ep = &sts->expected_dif[0]; | |
f83adb61 | 3266 | uint64_t lba = cmd->se_cmd.t_task_lba; |
be25152c QT |
3267 | uint8_t scsi_status, sense_key, asc, ascq; |
3268 | unsigned long flags; | |
f83adb61 | 3269 | |
be25152c | 3270 | cmd->trc_flags |= TRC_DIF_ERR; |
f83adb61 | 3271 | |
be25152c QT |
3272 | cmd->a_guard = be16_to_cpu(*(uint16_t *)(ap + 0)); |
3273 | cmd->a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2)); | |
3274 | cmd->a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4)); | |
f83adb61 | 3275 | |
be25152c QT |
3276 | cmd->e_guard = be16_to_cpu(*(uint16_t *)(ep + 0)); |
3277 | cmd->e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2)); | |
3278 | cmd->e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4)); | |
f83adb61 | 3279 | |
be25152c QT |
3280 | ql_dbg(ql_dbg_tgt_dif, vha, 0xf075, |
3281 | "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state); | |
f83adb61 | 3282 | |
be25152c | 3283 | scsi_status = sense_key = asc = ascq = 0; |
f83adb61 | 3284 | |
be25152c QT |
3285 | /* check appl tag */ |
3286 | if (cmd->e_app_tag != cmd->a_app_tag) { | |
3287 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
3288 | "App Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] " | |
3289 | "Ref[%x|%x], App[%x|%x], " | |
3290 | "Guard [%x|%x] cmd=%p ox_id[%04x]", | |
3291 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3292 | cmd->a_ref_tag, cmd->e_ref_tag, | |
3293 | cmd->a_app_tag, cmd->e_app_tag, | |
3294 | cmd->a_guard, cmd->e_guard, | |
3295 | cmd, cmd->atio.u.isp24.fcp_hdr.ox_id); | |
3296 | ||
3297 | cmd->dif_err_code = DIF_ERR_APP; | |
3298 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3299 | sense_key = ABORTED_COMMAND; | |
3300 | asc = 0x10; | |
3301 | ascq = 0x2; | |
f83adb61 QT |
3302 | } |
3303 | ||
3304 | /* check ref tag */ | |
be25152c QT |
3305 | if (cmd->e_ref_tag != cmd->a_ref_tag) { |
3306 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
3307 | "Ref Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] " | |
3308 | "Ref[%x|%x], App[%x|%x], " | |
3309 | "Guard[%x|%x] cmd=%p ox_id[%04x] ", | |
3310 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3311 | cmd->a_ref_tag, cmd->e_ref_tag, | |
3312 | cmd->a_app_tag, cmd->e_app_tag, | |
3313 | cmd->a_guard, cmd->e_guard, | |
3314 | cmd, cmd->atio.u.isp24.fcp_hdr.ox_id); | |
3315 | ||
3316 | cmd->dif_err_code = DIF_ERR_REF; | |
3317 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3318 | sense_key = ABORTED_COMMAND; | |
3319 | asc = 0x10; | |
3320 | ascq = 0x3; | |
f83adb61 QT |
3321 | goto out; |
3322 | } | |
3323 | ||
be25152c QT |
3324 | /* check guard */ |
3325 | if (cmd->e_guard != cmd->a_guard) { | |
3326 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
3327 | "Guard ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] " | |
3328 | "Ref[%x|%x], App[%x|%x], " | |
3329 | "Guard [%x|%x] cmd=%p ox_id[%04x]", | |
3330 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3331 | cmd->a_ref_tag, cmd->e_ref_tag, | |
3332 | cmd->a_app_tag, cmd->e_app_tag, | |
3333 | cmd->a_guard, cmd->e_guard, | |
3334 | cmd, cmd->atio.u.isp24.fcp_hdr.ox_id); | |
3335 | cmd->dif_err_code = DIF_ERR_GRD; | |
3336 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3337 | sense_key = ABORTED_COMMAND; | |
3338 | asc = 0x10; | |
3339 | ascq = 0x1; | |
f83adb61 QT |
3340 | } |
3341 | out: | |
be25152c QT |
3342 | switch (cmd->state) { |
3343 | case QLA_TGT_STATE_NEED_DATA: | |
3344 | /* handle_data will load DIF error code */ | |
3345 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3346 | vha->hw->tgt.tgt_ops->handle_data(cmd); | |
3347 | break; | |
3348 | default: | |
3349 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
3350 | if (cmd->aborted) { | |
3351 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3352 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3353 | break; | |
3354 | } | |
3355 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
f83adb61 | 3356 | |
be25152c QT |
3357 | qlt_send_resp_ctio(vha, cmd, scsi_status, sense_key, asc, ascq); |
3358 | /* assume scsi status gets out on the wire. | |
3359 | * Will not wait for completion. | |
3360 | */ | |
3361 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3362 | break; | |
3363 | } | |
3364 | } | |
f83adb61 | 3365 | |
a6ca8878 AP |
3366 | /* If hardware_lock held on entry, might drop it, then reaquire */ |
3367 | /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ | |
3368 | static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3369 | struct imm_ntfy_from_isp *ntfy) | |
3370 | { | |
3371 | struct nack_to_isp *nack; | |
3372 | struct qla_hw_data *ha = vha->hw; | |
3373 | request_t *pkt; | |
3374 | int ret = 0; | |
3375 | ||
3376 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c, | |
3377 | "Sending TERM ELS CTIO (ha=%p)\n", ha); | |
3378 | ||
ec7193e2 | 3379 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); |
a6ca8878 AP |
3380 | if (pkt == NULL) { |
3381 | ql_dbg(ql_dbg_tgt, vha, 0xe080, | |
3382 | "qla_target(%d): %s failed: unable to allocate " | |
3383 | "request packet\n", vha->vp_idx, __func__); | |
3384 | return -ENOMEM; | |
3385 | } | |
3386 | ||
3387 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
3388 | pkt->entry_count = 1; | |
4f060736 | 3389 | pkt->handle = QLA_TGT_SKIP_HANDLE; |
a6ca8878 AP |
3390 | |
3391 | nack = (struct nack_to_isp *)pkt; | |
3392 | nack->ox_id = ntfy->ox_id; | |
3393 | ||
3394 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; | |
3395 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
3396 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
3397 | __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); | |
3398 | } | |
3399 | ||
3400 | /* terminate */ | |
3401 | nack->u.isp24.flags |= | |
3402 | __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE); | |
3403 | ||
3404 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
3405 | nack->u.isp24.status = ntfy->u.isp24.status; | |
3406 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
3407 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; | |
3408 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; | |
3409 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
3410 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
3411 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
3412 | ||
3413 | qla2x00_start_iocbs(vha, vha->req); | |
3414 | return ret; | |
3415 | } | |
3416 | ||
3417 | static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3418 | struct imm_ntfy_from_isp *imm, int ha_locked) | |
3419 | { | |
3420 | unsigned long flags = 0; | |
3421 | int rc; | |
3422 | ||
3423 | if (qlt_issue_marker(vha, ha_locked) < 0) | |
3424 | return; | |
3425 | ||
3426 | if (ha_locked) { | |
3427 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3428 | ||
3429 | #if 0 /* Todo */ | |
3430 | if (rc == -ENOMEM) | |
3431 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
91f42b33 BVA |
3432 | #else |
3433 | if (rc) { | |
3434 | } | |
a6ca8878 AP |
3435 | #endif |
3436 | goto done; | |
3437 | } | |
3438 | ||
3439 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
3440 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3441 | ||
3442 | #if 0 /* Todo */ | |
3443 | if (rc == -ENOMEM) | |
3444 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
3445 | #endif | |
3446 | ||
3447 | done: | |
3448 | if (!ha_locked) | |
3449 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
3450 | } | |
3451 | ||
2d70c103 NB |
3452 | /* If hardware_lock held on entry, might drop it, then reaquire */ |
3453 | /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ | |
3454 | static int __qlt_send_term_exchange(struct scsi_qla_host *vha, | |
3455 | struct qla_tgt_cmd *cmd, | |
3456 | struct atio_from_isp *atio) | |
3457 | { | |
3458 | struct ctio7_to_24xx *ctio24; | |
3459 | struct qla_hw_data *ha = vha->hw; | |
3460 | request_t *pkt; | |
3461 | int ret = 0; | |
33a5fcee | 3462 | uint16_t temp; |
2d70c103 NB |
3463 | |
3464 | ql_dbg(ql_dbg_tgt, vha, 0xe01c, "Sending TERM EXCH CTIO (ha=%p)\n", ha); | |
3465 | ||
b6a029e1 | 3466 | pkt = (request_t *)qla2x00_alloc_iocbs_ready(vha, NULL); |
2d70c103 NB |
3467 | if (pkt == NULL) { |
3468 | ql_dbg(ql_dbg_tgt, vha, 0xe050, | |
3469 | "qla_target(%d): %s failed: unable to allocate " | |
3470 | "request packet\n", vha->vp_idx, __func__); | |
3471 | return -ENOMEM; | |
3472 | } | |
3473 | ||
3474 | if (cmd != NULL) { | |
3475 | if (cmd->state < QLA_TGT_STATE_PROCESSED) { | |
3476 | ql_dbg(ql_dbg_tgt, vha, 0xe051, | |
3477 | "qla_target(%d): Terminating cmd %p with " | |
3478 | "incorrect state %d\n", vha->vp_idx, cmd, | |
3479 | cmd->state); | |
3480 | } else | |
3481 | ret = 1; | |
3482 | } | |
3483 | ||
ce1025cd | 3484 | vha->tgt_counters.num_term_xchg_sent++; |
2d70c103 NB |
3485 | pkt->entry_count = 1; |
3486 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
3487 | ||
3488 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
3489 | ctio24->entry_type = CTIO_TYPE7; | |
71cdc079 | 3490 | ctio24->nport_handle = CTIO7_NHANDLE_UNRECOGNIZED; |
ad950360 | 3491 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
3492 | ctio24->vp_index = vha->vp_idx; |
3493 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
3494 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
3495 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
3496 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
3497 | ctio24->u.status1.flags = (atio->u.isp24.attr << 9) | | |
ad950360 | 3498 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | |
2d70c103 | 3499 | CTIO7_FLAGS_TERMINATE); |
33a5fcee QT |
3500 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
3501 | ctio24->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 NB |
3502 | |
3503 | /* Most likely, it isn't needed */ | |
3504 | ctio24->u.status1.residual = get_unaligned((uint32_t *) | |
3505 | &atio->u.isp24.fcp_cmnd.add_cdb[ | |
3506 | atio->u.isp24.fcp_cmnd.add_cdb_len]); | |
3507 | if (ctio24->u.status1.residual != 0) | |
3508 | ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER; | |
3509 | ||
63163e06 HM |
3510 | /* Memory Barrier */ |
3511 | wmb(); | |
2d70c103 NB |
3512 | qla2x00_start_iocbs(vha, vha->req); |
3513 | return ret; | |
3514 | } | |
3515 | ||
3516 | static void qlt_send_term_exchange(struct scsi_qla_host *vha, | |
a07100e0 QT |
3517 | struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked, |
3518 | int ul_abort) | |
2d70c103 | 3519 | { |
6bc85dd5 | 3520 | unsigned long flags = 0; |
2d70c103 NB |
3521 | int rc; |
3522 | ||
3523 | if (qlt_issue_marker(vha, ha_locked) < 0) | |
3524 | return; | |
3525 | ||
3526 | if (ha_locked) { | |
3527 | rc = __qlt_send_term_exchange(vha, cmd, atio); | |
33e79977 QT |
3528 | if (rc == -ENOMEM) |
3529 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
2d70c103 NB |
3530 | goto done; |
3531 | } | |
3532 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
3533 | rc = __qlt_send_term_exchange(vha, cmd, atio); | |
33e79977 QT |
3534 | if (rc == -ENOMEM) |
3535 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
d564a372 | 3536 | |
2d70c103 | 3537 | done: |
a07100e0 | 3538 | if (cmd && !ul_abort && !cmd->aborted) { |
6bc85dd5 HM |
3539 | if (cmd->sg_mapped) |
3540 | qlt_unmap_sg(vha, cmd); | |
2d70c103 NB |
3541 | vha->hw->tgt.tgt_ops->free_cmd(cmd); |
3542 | } | |
6bc85dd5 HM |
3543 | |
3544 | if (!ha_locked) | |
3545 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
3546 | ||
7b898542 | 3547 | return; |
2d70c103 NB |
3548 | } |
3549 | ||
33e79977 QT |
3550 | static void qlt_init_term_exchange(struct scsi_qla_host *vha) |
3551 | { | |
3552 | struct list_head free_list; | |
3553 | struct qla_tgt_cmd *cmd, *tcmd; | |
3554 | ||
3555 | vha->hw->tgt.leak_exchg_thresh_hold = | |
03e8c680 | 3556 | (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT; |
33e79977 QT |
3557 | |
3558 | cmd = tcmd = NULL; | |
3559 | if (!list_empty(&vha->hw->tgt.q_full_list)) { | |
3560 | INIT_LIST_HEAD(&free_list); | |
3561 | list_splice_init(&vha->hw->tgt.q_full_list, &free_list); | |
3562 | ||
3563 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
3564 | list_del(&cmd->cmd_list); | |
3565 | /* This cmd was never sent to TCM. There is no need | |
3566 | * to schedule free or call free_cmd | |
3567 | */ | |
3568 | qlt_free_cmd(cmd); | |
3569 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
3570 | } | |
3571 | } | |
3572 | vha->hw->tgt.num_qfull_cmds_dropped = 0; | |
3573 | } | |
3574 | ||
3575 | static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha) | |
3576 | { | |
3577 | uint32_t total_leaked; | |
3578 | ||
3579 | total_leaked = vha->hw->tgt.num_qfull_cmds_dropped; | |
3580 | ||
3581 | if (vha->hw->tgt.leak_exchg_thresh_hold && | |
3582 | (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) { | |
3583 | ||
3584 | ql_dbg(ql_dbg_tgt, vha, 0xe079, | |
3585 | "Chip reset due to exchange starvation: %d/%d.\n", | |
03e8c680 | 3586 | total_leaked, vha->hw->cur_fw_xcb_count); |
33e79977 QT |
3587 | |
3588 | if (IS_P3P_TYPE(vha->hw)) | |
3589 | set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); | |
3590 | else | |
3591 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
3592 | qla2xxx_wake_dpc(vha); | |
3593 | } | |
3594 | ||
3595 | } | |
3596 | ||
a07100e0 | 3597 | int qlt_abort_cmd(struct qla_tgt_cmd *cmd) |
7359df25 AP |
3598 | { |
3599 | struct qla_tgt *tgt = cmd->tgt; | |
3600 | struct scsi_qla_host *vha = tgt->vha; | |
3601 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
a07100e0 | 3602 | unsigned long flags; |
7359df25 AP |
3603 | |
3604 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014, | |
3605 | "qla_target(%d): terminating exchange for aborted cmd=%p " | |
3606 | "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd, | |
3607 | se_cmd->tag); | |
3608 | ||
a07100e0 QT |
3609 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
3610 | if (cmd->aborted) { | |
3611 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3612 | /* | |
3613 | * It's normal to see 2 calls in this path: | |
3614 | * 1) XFER Rdy completion + CMD_T_ABORT | |
3615 | * 2) TCM TMR - drain_state_list | |
3616 | */ | |
3617 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, | |
3618 | "multiple abort. %p transport_state %x, t_state %x," | |
3619 | " se_cmd_flags %x \n", cmd, cmd->se_cmd.transport_state, | |
3620 | cmd->se_cmd.t_state,cmd->se_cmd.se_cmd_flags); | |
3621 | return EIO; | |
3622 | } | |
193b50b9 | 3623 | cmd->aborted = 1; |
1eb42f96 | 3624 | cmd->trc_flags |= TRC_ABORT; |
a07100e0 | 3625 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
7359df25 | 3626 | |
a07100e0 QT |
3627 | qlt_send_term_exchange(vha, cmd, &cmd->atio, 0, 1); |
3628 | return 0; | |
7359df25 AP |
3629 | } |
3630 | EXPORT_SYMBOL(qlt_abort_cmd); | |
3631 | ||
2d70c103 NB |
3632 | void qlt_free_cmd(struct qla_tgt_cmd *cmd) |
3633 | { | |
5d964837 | 3634 | struct fc_port *sess = cmd->sess; |
51a07f84 | 3635 | |
f83adb61 QT |
3636 | ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074, |
3637 | "%s: se_cmd[%p] ox_id %04x\n", | |
3638 | __func__, &cmd->se_cmd, | |
3639 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
2d70c103 | 3640 | |
e07f8f65 SK |
3641 | BUG_ON(cmd->cmd_in_wq); |
3642 | ||
a07100e0 QT |
3643 | if (cmd->sg_mapped) |
3644 | qlt_unmap_sg(cmd->vha, cmd); | |
3645 | ||
33e79977 QT |
3646 | if (!cmd->q_full) |
3647 | qlt_decr_num_pend_cmds(cmd->vha); | |
3648 | ||
f83adb61 | 3649 | BUG_ON(cmd->sg_mapped); |
e07f8f65 | 3650 | cmd->jiffies_at_free = get_jiffies_64(); |
2d70c103 NB |
3651 | if (unlikely(cmd->free_sg)) |
3652 | kfree(cmd->sg); | |
51a07f84 NB |
3653 | |
3654 | if (!sess || !sess->se_sess) { | |
3655 | WARN_ON(1); | |
3656 | return; | |
3657 | } | |
e07f8f65 | 3658 | cmd->jiffies_at_free = get_jiffies_64(); |
51a07f84 | 3659 | percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); |
2d70c103 NB |
3660 | } |
3661 | EXPORT_SYMBOL(qlt_free_cmd); | |
3662 | ||
2d70c103 NB |
3663 | /* |
3664 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
3665 | */ | |
3666 | static int qlt_term_ctio_exchange(struct scsi_qla_host *vha, void *ctio, | |
3667 | struct qla_tgt_cmd *cmd, uint32_t status) | |
3668 | { | |
3669 | int term = 0; | |
3670 | ||
be25152c QT |
3671 | if (cmd->se_cmd.prot_op) |
3672 | ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, | |
3673 | "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] " | |
3674 | "se_cmd=%p tag[%x] op %#x/%s", | |
3675 | cmd->lba, cmd->lba, | |
3676 | cmd->num_blks, &cmd->se_cmd, | |
3677 | cmd->atio.u.isp24.exchange_addr, | |
3678 | cmd->se_cmd.prot_op, | |
3679 | prot_op_str(cmd->se_cmd.prot_op)); | |
3680 | ||
2d70c103 NB |
3681 | if (ctio != NULL) { |
3682 | struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio; | |
3683 | term = !(c->flags & | |
ad950360 | 3684 | cpu_to_le16(OF_TERM_EXCH)); |
2d70c103 NB |
3685 | } else |
3686 | term = 1; | |
3687 | ||
3688 | if (term) | |
a07100e0 | 3689 | qlt_send_term_exchange(vha, cmd, &cmd->atio, 1, 0); |
2d70c103 NB |
3690 | |
3691 | return term; | |
3692 | } | |
3693 | ||
3694 | /* ha->hardware_lock supposed to be held on entry */ | |
3695 | static inline struct qla_tgt_cmd *qlt_get_cmd(struct scsi_qla_host *vha, | |
3696 | uint32_t handle) | |
3697 | { | |
3698 | struct qla_hw_data *ha = vha->hw; | |
3699 | ||
3700 | handle--; | |
3701 | if (ha->tgt.cmds[handle] != NULL) { | |
3702 | struct qla_tgt_cmd *cmd = ha->tgt.cmds[handle]; | |
3703 | ha->tgt.cmds[handle] = NULL; | |
3704 | return cmd; | |
3705 | } else | |
3706 | return NULL; | |
3707 | } | |
3708 | ||
3709 | /* ha->hardware_lock supposed to be held on entry */ | |
3710 | static struct qla_tgt_cmd *qlt_ctio_to_cmd(struct scsi_qla_host *vha, | |
3711 | uint32_t handle, void *ctio) | |
3712 | { | |
3713 | struct qla_tgt_cmd *cmd = NULL; | |
3714 | ||
3715 | /* Clear out internal marks */ | |
3716 | handle &= ~(CTIO_COMPLETION_HANDLE_MARK | | |
3717 | CTIO_INTERMEDIATE_HANDLE_MARK); | |
3718 | ||
3719 | if (handle != QLA_TGT_NULL_HANDLE) { | |
667024a3 | 3720 | if (unlikely(handle == QLA_TGT_SKIP_HANDLE)) |
2d70c103 | 3721 | return NULL; |
667024a3 | 3722 | |
2d70c103 | 3723 | /* handle-1 is actually used */ |
8d93f550 | 3724 | if (unlikely(handle > DEFAULT_OUTSTANDING_COMMANDS)) { |
2d70c103 NB |
3725 | ql_dbg(ql_dbg_tgt, vha, 0xe052, |
3726 | "qla_target(%d): Wrong handle %x received\n", | |
3727 | vha->vp_idx, handle); | |
3728 | return NULL; | |
3729 | } | |
3730 | cmd = qlt_get_cmd(vha, handle); | |
3731 | if (unlikely(cmd == NULL)) { | |
3732 | ql_dbg(ql_dbg_tgt, vha, 0xe053, | |
3733 | "qla_target(%d): Suspicious: unable to " | |
3734 | "find the command with handle %x\n", vha->vp_idx, | |
3735 | handle); | |
3736 | return NULL; | |
3737 | } | |
3738 | } else if (ctio != NULL) { | |
3739 | /* We can't get loop ID from CTIO7 */ | |
3740 | ql_dbg(ql_dbg_tgt, vha, 0xe054, | |
3741 | "qla_target(%d): Wrong CTIO received: QLA24xx doesn't " | |
3742 | "support NULL handles\n", vha->vp_idx); | |
3743 | return NULL; | |
3744 | } | |
3745 | ||
3746 | return cmd; | |
3747 | } | |
3748 | ||
c0cb4496 AE |
3749 | /* hardware_lock should be held by caller. */ |
3750 | static void | |
3751 | qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) | |
3752 | { | |
3753 | struct qla_hw_data *ha = vha->hw; | |
3754 | uint32_t handle; | |
3755 | ||
3756 | if (cmd->sg_mapped) | |
3757 | qlt_unmap_sg(vha, cmd); | |
3758 | ||
3759 | handle = qlt_make_handle(vha); | |
3760 | ||
3761 | /* TODO: fix debug message type and ids. */ | |
3762 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
3763 | ql_dbg(ql_dbg_io, vha, 0xff00, | |
3764 | "HOST-ABORT: handle=%d, state=PROCESSED.\n", handle); | |
3765 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { | |
3766 | cmd->write_data_transferred = 0; | |
3767 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3768 | ||
3769 | ql_dbg(ql_dbg_io, vha, 0xff01, | |
3770 | "HOST-ABORT: handle=%d, state=DATA_IN.\n", handle); | |
3771 | ||
3772 | ha->tgt.tgt_ops->handle_data(cmd); | |
3773 | return; | |
c0cb4496 AE |
3774 | } else { |
3775 | ql_dbg(ql_dbg_io, vha, 0xff03, | |
3776 | "HOST-ABORT: handle=%d, state=BAD(%d).\n", handle, | |
3777 | cmd->state); | |
3778 | dump_stack(); | |
3779 | } | |
3780 | ||
1eb42f96 | 3781 | cmd->trc_flags |= TRC_FLUSH; |
c0cb4496 AE |
3782 | ha->tgt.tgt_ops->free_cmd(cmd); |
3783 | } | |
3784 | ||
3785 | void | |
3786 | qlt_host_reset_handler(struct qla_hw_data *ha) | |
3787 | { | |
3788 | struct qla_tgt_cmd *cmd; | |
3789 | unsigned long flags; | |
3790 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
3791 | scsi_qla_host_t *vha = NULL; | |
3792 | struct qla_tgt *tgt = base_vha->vha_tgt.qla_tgt; | |
3793 | uint32_t i; | |
3794 | ||
3795 | if (!base_vha->hw->tgt.tgt_ops) | |
3796 | return; | |
3797 | ||
3798 | if (!tgt || qla_ini_mode_enabled(base_vha)) { | |
3799 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003, | |
3800 | "Target mode disabled\n"); | |
3801 | return; | |
3802 | } | |
3803 | ||
3804 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xff10, | |
3805 | "HOST-ABORT-HNDLR: base_vha->dpc_flags=%lx.\n", | |
3806 | base_vha->dpc_flags); | |
3807 | ||
3808 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
3809 | for (i = 1; i < DEFAULT_OUTSTANDING_COMMANDS + 1; i++) { | |
3810 | cmd = qlt_get_cmd(base_vha, i); | |
3811 | if (!cmd) | |
3812 | continue; | |
3813 | /* ha->tgt.cmds entry is cleared by qlt_get_cmd. */ | |
3814 | vha = cmd->vha; | |
3815 | qlt_abort_cmd_on_host_reset(vha, cmd); | |
3816 | } | |
3817 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3818 | } | |
3819 | ||
3820 | ||
2d70c103 NB |
3821 | /* |
3822 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
3823 | */ | |
3824 | static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, | |
3825 | uint32_t status, void *ctio) | |
3826 | { | |
3827 | struct qla_hw_data *ha = vha->hw; | |
3828 | struct se_cmd *se_cmd; | |
2d70c103 NB |
3829 | struct qla_tgt_cmd *cmd; |
3830 | ||
2d70c103 NB |
3831 | if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) { |
3832 | /* That could happen only in case of an error/reset/abort */ | |
3833 | if (status != CTIO_SUCCESS) { | |
3834 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d, | |
3835 | "Intermediate CTIO received" | |
3836 | " (status %x)\n", status); | |
3837 | } | |
3838 | return; | |
3839 | } | |
3840 | ||
3841 | cmd = qlt_ctio_to_cmd(vha, handle, ctio); | |
092e1dc3 | 3842 | if (cmd == NULL) |
2d70c103 | 3843 | return; |
092e1dc3 | 3844 | |
2d70c103 | 3845 | se_cmd = &cmd->se_cmd; |
d564a372 | 3846 | cmd->cmd_sent_to_fw = 0; |
2d70c103 | 3847 | |
f9b6721a | 3848 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
3849 | |
3850 | if (unlikely(status != CTIO_SUCCESS)) { | |
3851 | switch (status & 0xFFFF) { | |
3852 | case CTIO_LIP_RESET: | |
3853 | case CTIO_TARGET_RESET: | |
3854 | case CTIO_ABORTED: | |
7b898542 | 3855 | /* driver request abort via Terminate exchange */ |
2d70c103 NB |
3856 | case CTIO_TIMEOUT: |
3857 | case CTIO_INVALID_RX_ID: | |
3858 | /* They are OK */ | |
3859 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058, | |
3860 | "qla_target(%d): CTIO with " | |
3861 | "status %#x received, state %x, se_cmd %p, " | |
3862 | "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, " | |
3863 | "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx, | |
3864 | status, cmd->state, se_cmd); | |
3865 | break; | |
3866 | ||
3867 | case CTIO_PORT_LOGGED_OUT: | |
3868 | case CTIO_PORT_UNAVAILABLE: | |
71cdc079 | 3869 | { |
dacb5822 HM |
3870 | int logged_out = |
3871 | (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT; | |
3872 | ||
2d70c103 | 3873 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059, |
71cdc079 | 3874 | "qla_target(%d): CTIO with %s status %x " |
2d70c103 | 3875 | "received (state %x, se_cmd %p)\n", vha->vp_idx, |
dacb5822 | 3876 | logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE", |
2d70c103 | 3877 | status, cmd->state, se_cmd); |
2d70c103 | 3878 | |
71cdc079 AP |
3879 | if (logged_out && cmd->sess) { |
3880 | /* | |
3881 | * Session is already logged out, but we need | |
3882 | * to notify initiator, who's not aware of this | |
3883 | */ | |
3884 | cmd->sess->logout_on_delete = 0; | |
3885 | cmd->sess->send_els_logo = 1; | |
726b8548 QT |
3886 | ql_dbg(ql_dbg_disc, vha, 0xffff, |
3887 | "%s %d %8phC post del sess\n", | |
3888 | __func__, __LINE__, cmd->sess->port_name); | |
3889 | ||
3890 | qlt_schedule_sess_for_deletion_lock(cmd->sess); | |
71cdc079 AP |
3891 | } |
3892 | break; | |
3893 | } | |
f83adb61 QT |
3894 | case CTIO_DIF_ERROR: { |
3895 | struct ctio_crc_from_fw *crc = | |
3896 | (struct ctio_crc_from_fw *)ctio; | |
3897 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073, | |
be25152c QT |
3898 | "qla_target(%d): CTIO with DIF_ERROR status %x " |
3899 | "received (state %x, ulp_cmd %p) actual_dif[0x%llx] " | |
3900 | "expect_dif[0x%llx]\n", | |
f83adb61 QT |
3901 | vha->vp_idx, status, cmd->state, se_cmd, |
3902 | *((u64 *)&crc->actual_dif[0]), | |
3903 | *((u64 *)&crc->expected_dif[0])); | |
3904 | ||
be25152c QT |
3905 | qlt_handle_dif_error(vha, cmd, ctio); |
3906 | return; | |
f83adb61 | 3907 | } |
2d70c103 NB |
3908 | default: |
3909 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b, | |
f83adb61 | 3910 | "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n", |
2d70c103 NB |
3911 | vha->vp_idx, status, cmd->state, se_cmd); |
3912 | break; | |
3913 | } | |
3914 | ||
7b898542 | 3915 | |
193b50b9 | 3916 | /* "cmd->aborted" means |
7b898542 QT |
3917 | * cmd is already aborted/terminated, we don't |
3918 | * need to terminate again. The exchange is already | |
3919 | * cleaned up/freed at FW level. Just cleanup at driver | |
3920 | * level. | |
3921 | */ | |
3922 | if ((cmd->state != QLA_TGT_STATE_NEED_DATA) && | |
193b50b9 | 3923 | (!cmd->aborted)) { |
1eb42f96 | 3924 | cmd->trc_flags |= TRC_CTIO_ERR; |
2d70c103 NB |
3925 | if (qlt_term_ctio_exchange(vha, ctio, cmd, status)) |
3926 | return; | |
7b898542 | 3927 | } |
2d70c103 NB |
3928 | } |
3929 | ||
3930 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
1eb42f96 | 3931 | cmd->trc_flags |= TRC_CTIO_DONE; |
2d70c103 | 3932 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { |
2d70c103 NB |
3933 | cmd->state = QLA_TGT_STATE_DATA_IN; |
3934 | ||
52c82823 | 3935 | if (status == CTIO_SUCCESS) |
2d70c103 NB |
3936 | cmd->write_data_transferred = 1; |
3937 | ||
2d70c103 NB |
3938 | ha->tgt.tgt_ops->handle_data(cmd); |
3939 | return; | |
193b50b9 | 3940 | } else if (cmd->aborted) { |
1eb42f96 | 3941 | cmd->trc_flags |= TRC_CTIO_ABORTED; |
2d70c103 | 3942 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e, |
649ee054 | 3943 | "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag); |
2d70c103 | 3944 | } else { |
1eb42f96 | 3945 | cmd->trc_flags |= TRC_CTIO_STRANGE; |
2d70c103 NB |
3946 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c, |
3947 | "qla_target(%d): A command in state (%d) should " | |
3948 | "not return a CTIO complete\n", vha->vp_idx, cmd->state); | |
3949 | } | |
3950 | ||
7b898542 | 3951 | if (unlikely(status != CTIO_SUCCESS) && |
193b50b9 | 3952 | !cmd->aborted) { |
2d70c103 NB |
3953 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n"); |
3954 | dump_stack(); | |
3955 | } | |
3956 | ||
3957 | ha->tgt.tgt_ops->free_cmd(cmd); | |
3958 | } | |
3959 | ||
2d70c103 NB |
3960 | static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha, |
3961 | uint8_t task_codes) | |
3962 | { | |
3963 | int fcp_task_attr; | |
3964 | ||
3965 | switch (task_codes) { | |
3966 | case ATIO_SIMPLE_QUEUE: | |
68d81f40 | 3967 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
3968 | break; |
3969 | case ATIO_HEAD_OF_QUEUE: | |
68d81f40 | 3970 | fcp_task_attr = TCM_HEAD_TAG; |
2d70c103 NB |
3971 | break; |
3972 | case ATIO_ORDERED_QUEUE: | |
68d81f40 | 3973 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
3974 | break; |
3975 | case ATIO_ACA_QUEUE: | |
68d81f40 | 3976 | fcp_task_attr = TCM_ACA_TAG; |
2d70c103 NB |
3977 | break; |
3978 | case ATIO_UNTAGGED: | |
68d81f40 | 3979 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
3980 | break; |
3981 | default: | |
3982 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d, | |
3983 | "qla_target: unknown task code %x, use ORDERED instead\n", | |
3984 | task_codes); | |
68d81f40 | 3985 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
3986 | break; |
3987 | } | |
3988 | ||
3989 | return fcp_task_attr; | |
3990 | } | |
3991 | ||
5d964837 | 3992 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *, |
2d70c103 NB |
3993 | uint8_t *); |
3994 | /* | |
3995 | * Process context for I/O path into tcm_qla2xxx code | |
3996 | */ | |
51a07f84 | 3997 | static void __qlt_do_work(struct qla_tgt_cmd *cmd) |
2d70c103 | 3998 | { |
2d70c103 NB |
3999 | scsi_qla_host_t *vha = cmd->vha; |
4000 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 4001 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 4002 | struct fc_port *sess = cmd->sess; |
2d70c103 NB |
4003 | struct atio_from_isp *atio = &cmd->atio; |
4004 | unsigned char *cdb; | |
4005 | unsigned long flags; | |
4006 | uint32_t data_length; | |
4007 | int ret, fcp_task_attr, data_dir, bidi = 0; | |
4008 | ||
e07f8f65 | 4009 | cmd->cmd_in_wq = 0; |
1eb42f96 | 4010 | cmd->trc_flags |= TRC_DO_WORK; |
2d70c103 NB |
4011 | if (tgt->tgt_stop) |
4012 | goto out_term; | |
4013 | ||
193b50b9 | 4014 | if (cmd->aborted) { |
8b2f5ff3 SN |
4015 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082, |
4016 | "cmd with tag %u is aborted\n", | |
4017 | cmd->atio.u.isp24.exchange_addr); | |
4018 | goto out_term; | |
4019 | } | |
4020 | ||
a07100e0 | 4021 | spin_lock_init(&cmd->cmd_lock); |
2d70c103 | 4022 | cdb = &atio->u.isp24.fcp_cmnd.cdb[0]; |
649ee054 | 4023 | cmd->se_cmd.tag = atio->u.isp24.exchange_addr; |
2d70c103 NB |
4024 | cmd->unpacked_lun = scsilun_to_int( |
4025 | (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun); | |
4026 | ||
4027 | if (atio->u.isp24.fcp_cmnd.rddata && | |
4028 | atio->u.isp24.fcp_cmnd.wrdata) { | |
4029 | bidi = 1; | |
4030 | data_dir = DMA_TO_DEVICE; | |
4031 | } else if (atio->u.isp24.fcp_cmnd.rddata) | |
4032 | data_dir = DMA_FROM_DEVICE; | |
4033 | else if (atio->u.isp24.fcp_cmnd.wrdata) | |
4034 | data_dir = DMA_TO_DEVICE; | |
4035 | else | |
4036 | data_dir = DMA_NONE; | |
4037 | ||
4038 | fcp_task_attr = qlt_get_fcp_task_attr(vha, | |
4039 | atio->u.isp24.fcp_cmnd.task_attr); | |
4040 | data_length = be32_to_cpu(get_unaligned((uint32_t *) | |
4041 | &atio->u.isp24.fcp_cmnd.add_cdb[ | |
4042 | atio->u.isp24.fcp_cmnd.add_cdb_len])); | |
4043 | ||
51a07f84 NB |
4044 | ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length, |
4045 | fcp_task_attr, data_dir, bidi); | |
2d70c103 NB |
4046 | if (ret != 0) |
4047 | goto out_term; | |
4048 | /* | |
4049 | * Drop extra session reference from qla_tgt_handle_cmd_for_atio*( | |
4050 | */ | |
7560151b | 4051 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
5d964837 | 4052 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4053 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
4054 | return; |
4055 | ||
4056 | out_term: | |
667024a3 | 4057 | ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd); |
2d70c103 | 4058 | /* |
fae9eaf8 RD |
4059 | * cmd has not sent to target yet, so pass NULL as the second |
4060 | * argument to qlt_send_term_exchange() and free the memory here. | |
2d70c103 | 4061 | */ |
1eb42f96 | 4062 | cmd->trc_flags |= TRC_DO_WORK_ERR; |
2d70c103 | 4063 | spin_lock_irqsave(&ha->hardware_lock, flags); |
a07100e0 | 4064 | qlt_send_term_exchange(vha, NULL, &cmd->atio, 1, 0); |
33e79977 QT |
4065 | |
4066 | qlt_decr_num_pend_cmds(vha); | |
51a07f84 | 4067 | percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); |
51a07f84 | 4068 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
7560151b QT |
4069 | |
4070 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
5d964837 | 4071 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4072 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
51a07f84 NB |
4073 | } |
4074 | ||
4075 | static void qlt_do_work(struct work_struct *work) | |
4076 | { | |
4077 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
8b2f5ff3 SN |
4078 | scsi_qla_host_t *vha = cmd->vha; |
4079 | unsigned long flags; | |
4080 | ||
4081 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
4082 | list_del(&cmd->cmd_list); | |
4083 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
51a07f84 NB |
4084 | |
4085 | __qlt_do_work(cmd); | |
4086 | } | |
4087 | ||
4088 | static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, | |
5d964837 | 4089 | struct fc_port *sess, |
51a07f84 NB |
4090 | struct atio_from_isp *atio) |
4091 | { | |
4092 | struct se_session *se_sess = sess->se_sess; | |
4093 | struct qla_tgt_cmd *cmd; | |
4094 | int tag; | |
4095 | ||
4096 | tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); | |
4097 | if (tag < 0) | |
4098 | return NULL; | |
4099 | ||
4100 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
4101 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
4102 | ||
4103 | memcpy(&cmd->atio, atio, sizeof(*atio)); | |
4104 | cmd->state = QLA_TGT_STATE_NEW; | |
4105 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
33e79977 | 4106 | qlt_incr_num_pend_cmds(vha); |
51a07f84 NB |
4107 | cmd->vha = vha; |
4108 | cmd->se_cmd.map_tag = tag; | |
4109 | cmd->sess = sess; | |
4110 | cmd->loop_id = sess->loop_id; | |
4111 | cmd->conf_compl_supported = sess->conf_compl_supported; | |
4112 | ||
1eb42f96 | 4113 | cmd->trc_flags = 0; |
9fce1254 KS |
4114 | cmd->jiffies_at_alloc = get_jiffies_64(); |
4115 | ||
4116 | cmd->reset_count = vha->hw->chip_reset; | |
4117 | ||
51a07f84 NB |
4118 | return cmd; |
4119 | } | |
4120 | ||
4121 | static void qlt_send_busy(struct scsi_qla_host *, struct atio_from_isp *, | |
4122 | uint16_t); | |
4123 | ||
4124 | static void qlt_create_sess_from_atio(struct work_struct *work) | |
4125 | { | |
4126 | struct qla_tgt_sess_op *op = container_of(work, | |
4127 | struct qla_tgt_sess_op, work); | |
4128 | scsi_qla_host_t *vha = op->vha; | |
4129 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4130 | struct fc_port *sess; |
51a07f84 NB |
4131 | struct qla_tgt_cmd *cmd; |
4132 | unsigned long flags; | |
4133 | uint8_t *s_id = op->atio.u.isp24.fcp_hdr.s_id; | |
4134 | ||
8b2f5ff3 SN |
4135 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
4136 | list_del(&op->cmd_list); | |
4137 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
4138 | ||
4139 | if (op->aborted) { | |
4140 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf083, | |
4141 | "sess_op with tag %u is aborted\n", | |
4142 | op->atio.u.isp24.exchange_addr); | |
4143 | goto out_term; | |
4144 | } | |
4145 | ||
51a07f84 | 4146 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022, |
8b2f5ff3 SN |
4147 | "qla_target(%d): Unable to find wwn login" |
4148 | " (s_id %x:%x:%x), trying to create it manually\n", | |
4149 | vha->vp_idx, s_id[0], s_id[1], s_id[2]); | |
51a07f84 NB |
4150 | |
4151 | if (op->atio.u.raw.entry_count > 1) { | |
4152 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023, | |
8b2f5ff3 | 4153 | "Dropping multy entry atio %p\n", &op->atio); |
51a07f84 NB |
4154 | goto out_term; |
4155 | } | |
4156 | ||
51a07f84 NB |
4157 | sess = qlt_make_local_sess(vha, s_id); |
4158 | /* sess has an extra creation ref. */ | |
51a07f84 NB |
4159 | |
4160 | if (!sess) | |
4161 | goto out_term; | |
4162 | /* | |
4163 | * Now obtain a pre-allocated session tag using the original op->atio | |
4164 | * packet header, and dispatch into __qlt_do_work() using the existing | |
4165 | * process context. | |
4166 | */ | |
4167 | cmd = qlt_get_tag(vha, sess, &op->atio); | |
4168 | if (!cmd) { | |
4169 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
4170 | qlt_send_busy(vha, &op->atio, SAM_STAT_BUSY); | |
5d964837 | 4171 | ha->tgt.tgt_ops->put_sess(sess); |
51a07f84 NB |
4172 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
4173 | kfree(op); | |
4174 | return; | |
4175 | } | |
726b8548 | 4176 | |
51a07f84 | 4177 | /* |
e3dc0e31 | 4178 | * __qlt_do_work() will call qlt_put_sess() to release |
51a07f84 NB |
4179 | * the extra reference taken above by qlt_make_local_sess() |
4180 | */ | |
4181 | __qlt_do_work(cmd); | |
4182 | kfree(op); | |
4183 | return; | |
51a07f84 NB |
4184 | out_term: |
4185 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
a07100e0 | 4186 | qlt_send_term_exchange(vha, NULL, &op->atio, 1, 0); |
08234e3a | 4187 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
51a07f84 | 4188 | kfree(op); |
2d70c103 NB |
4189 | } |
4190 | ||
4191 | /* ha->hardware_lock supposed to be held on entry */ | |
4192 | static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, | |
4193 | struct atio_from_isp *atio) | |
4194 | { | |
51a07f84 | 4195 | struct qla_hw_data *ha = vha->hw; |
0e8cd71c | 4196 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 4197 | struct fc_port *sess; |
2d70c103 | 4198 | struct qla_tgt_cmd *cmd; |
5d964837 | 4199 | unsigned long flags; |
2d70c103 NB |
4200 | |
4201 | if (unlikely(tgt->tgt_stop)) { | |
667024a3 | 4202 | ql_dbg(ql_dbg_io, vha, 0x3061, |
2d70c103 NB |
4203 | "New command while device %p is shutting down\n", tgt); |
4204 | return -EFAULT; | |
4205 | } | |
4206 | ||
51a07f84 NB |
4207 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id); |
4208 | if (unlikely(!sess)) { | |
4209 | struct qla_tgt_sess_op *op = kzalloc(sizeof(struct qla_tgt_sess_op), | |
4210 | GFP_ATOMIC); | |
4211 | if (!op) | |
4212 | return -ENOMEM; | |
4213 | ||
4214 | memcpy(&op->atio, atio, sizeof(*atio)); | |
78c2106a | 4215 | op->vha = vha; |
8b2f5ff3 SN |
4216 | |
4217 | spin_lock(&vha->cmd_list_lock); | |
4218 | list_add_tail(&op->cmd_list, &vha->qla_sess_op_cmd_list); | |
4219 | spin_unlock(&vha->cmd_list_lock); | |
4220 | ||
51a07f84 NB |
4221 | INIT_WORK(&op->work, qlt_create_sess_from_atio); |
4222 | queue_work(qla_tgt_wq, &op->work); | |
4223 | return 0; | |
4224 | } | |
e52a8b45 AP |
4225 | |
4226 | /* Another WWN used to have our s_id. Our PLOGI scheduled its | |
4227 | * session deletion, but it's still in sess_del_work wq */ | |
726b8548 | 4228 | if (sess->deleted) { |
e52a8b45 AP |
4229 | ql_dbg(ql_dbg_io, vha, 0x3061, |
4230 | "New command while old session %p is being deleted\n", | |
4231 | sess); | |
4232 | return -EFAULT; | |
4233 | } | |
4234 | ||
51a07f84 NB |
4235 | /* |
4236 | * Do kref_get() before returning + dropping qla_hw_data->hardware_lock. | |
4237 | */ | |
726b8548 QT |
4238 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
4239 | ql_dbg(ql_dbg_tgt, vha, 0xffff, | |
4240 | "%s: kref_get fail, %8phC oxid %x \n", | |
4241 | __func__, sess->port_name, | |
4242 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
4243 | return -EFAULT; | |
4244 | } | |
51a07f84 NB |
4245 | |
4246 | cmd = qlt_get_tag(vha, sess, atio); | |
2d70c103 | 4247 | if (!cmd) { |
667024a3 | 4248 | ql_dbg(ql_dbg_io, vha, 0x3062, |
2d70c103 | 4249 | "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx); |
5d964837 QT |
4250 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
4251 | ha->tgt.tgt_ops->put_sess(sess); | |
4252 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
4253 | return -ENOMEM; |
4254 | } | |
4255 | ||
e07f8f65 | 4256 | cmd->cmd_in_wq = 1; |
1eb42f96 | 4257 | cmd->trc_flags |= TRC_NEW_CMD; |
5327c7db QT |
4258 | cmd->se_cmd.cpuid = ha->msix_count ? |
4259 | ha->tgt.rspq_vector_cpuid : WORK_CPU_UNBOUND; | |
8b2f5ff3 | 4260 | |
726b8548 | 4261 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4262 | list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list); |
726b8548 | 4263 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4264 | |
2d70c103 | 4265 | INIT_WORK(&cmd->work, qlt_do_work); |
fb3269ba | 4266 | if (ha->msix_count) { |
fb3269ba QT |
4267 | if (cmd->atio.u.isp24.fcp_cmnd.rddata) |
4268 | queue_work_on(smp_processor_id(), qla_tgt_wq, | |
4269 | &cmd->work); | |
4270 | else | |
4271 | queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, | |
4272 | &cmd->work); | |
4273 | } else { | |
4274 | queue_work(qla_tgt_wq, &cmd->work); | |
4275 | } | |
2d70c103 NB |
4276 | return 0; |
4277 | ||
4278 | } | |
4279 | ||
4280 | /* ha->hardware_lock supposed to be held on entry */ | |
5d964837 | 4281 | static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, |
2d70c103 NB |
4282 | int fn, void *iocb, int flags) |
4283 | { | |
4284 | struct scsi_qla_host *vha = sess->vha; | |
4285 | struct qla_hw_data *ha = vha->hw; | |
4286 | struct qla_tgt_mgmt_cmd *mcmd; | |
8b2f5ff3 | 4287 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; |
2d70c103 | 4288 | int res; |
2d70c103 NB |
4289 | |
4290 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4291 | if (!mcmd) { | |
4292 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009, | |
4293 | "qla_target(%d): Allocation of management " | |
4294 | "command failed, some commands and their data could " | |
4295 | "leak\n", vha->vp_idx); | |
4296 | return -ENOMEM; | |
4297 | } | |
4298 | memset(mcmd, 0, sizeof(*mcmd)); | |
4299 | mcmd->sess = sess; | |
4300 | ||
4301 | if (iocb) { | |
4302 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4303 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4304 | } | |
4305 | mcmd->tmr_func = fn; | |
4306 | mcmd->flags = flags; | |
b6a029e1 | 4307 | mcmd->reset_count = vha->hw->chip_reset; |
2d70c103 NB |
4308 | |
4309 | switch (fn) { | |
2d70c103 | 4310 | case QLA_TGT_LUN_RESET: |
be92fc3f QT |
4311 | abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id); |
4312 | break; | |
2d70c103 NB |
4313 | } |
4314 | ||
be92fc3f | 4315 | res = ha->tgt.tgt_ops->handle_tmr(mcmd, lun, mcmd->tmr_func, 0); |
2d70c103 NB |
4316 | if (res != 0) { |
4317 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000b, | |
4318 | "qla_target(%d): tgt.tgt_ops->handle_tmr() failed: %d\n", | |
4319 | sess->vha->vp_idx, res); | |
4320 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
4321 | return -EFAULT; | |
4322 | } | |
4323 | ||
4324 | return 0; | |
4325 | } | |
4326 | ||
4327 | /* ha->hardware_lock supposed to be held on entry */ | |
4328 | static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb) | |
4329 | { | |
4330 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4331 | struct qla_hw_data *ha = vha->hw; | |
4332 | struct qla_tgt *tgt; | |
5d964837 | 4333 | struct fc_port *sess; |
2d70c103 | 4334 | uint32_t lun, unpacked_lun; |
52c82823 | 4335 | int fn; |
7560151b | 4336 | unsigned long flags; |
2d70c103 | 4337 | |
0e8cd71c | 4338 | tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
4339 | |
4340 | lun = a->u.isp24.fcp_cmnd.lun; | |
2d70c103 | 4341 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
7560151b QT |
4342 | |
4343 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
4344 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, |
4345 | a->u.isp24.fcp_hdr.s_id); | |
7560151b QT |
4346 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4347 | ||
2d70c103 NB |
4348 | unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun); |
4349 | ||
4350 | if (!sess) { | |
4351 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf024, | |
4352 | "qla_target(%d): task mgmt fn 0x%x for " | |
4353 | "non-existant session\n", vha->vp_idx, fn); | |
4354 | return qlt_sched_sess_work(tgt, QLA_TGT_SESS_WORK_TM, iocb, | |
4355 | sizeof(struct atio_from_isp)); | |
4356 | } | |
4357 | ||
726b8548 | 4358 | if (sess->deleted) |
e52a8b45 AP |
4359 | return -EFAULT; |
4360 | ||
2d70c103 NB |
4361 | return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); |
4362 | } | |
4363 | ||
4364 | /* ha->hardware_lock supposed to be held on entry */ | |
4365 | static int __qlt_abort_task(struct scsi_qla_host *vha, | |
5d964837 | 4366 | struct imm_ntfy_from_isp *iocb, struct fc_port *sess) |
2d70c103 NB |
4367 | { |
4368 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4369 | struct qla_hw_data *ha = vha->hw; | |
4370 | struct qla_tgt_mgmt_cmd *mcmd; | |
4371 | uint32_t lun, unpacked_lun; | |
4372 | int rc; | |
4373 | ||
4374 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4375 | if (mcmd == NULL) { | |
4376 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f, | |
4377 | "qla_target(%d): %s: Allocation of ABORT cmd failed\n", | |
4378 | vha->vp_idx, __func__); | |
4379 | return -ENOMEM; | |
4380 | } | |
4381 | memset(mcmd, 0, sizeof(*mcmd)); | |
4382 | ||
4383 | mcmd->sess = sess; | |
4384 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4385 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4386 | ||
4387 | lun = a->u.isp24.fcp_cmnd.lun; | |
4388 | unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun); | |
80187f8e | 4389 | mcmd->reset_count = vha->hw->chip_reset; |
be92fc3f | 4390 | mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK; |
2d70c103 | 4391 | |
be92fc3f | 4392 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func, |
2d70c103 NB |
4393 | le16_to_cpu(iocb->u.isp2x.seq_id)); |
4394 | if (rc != 0) { | |
4395 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060, | |
4396 | "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n", | |
4397 | vha->vp_idx, rc); | |
4398 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
4399 | return -EFAULT; | |
4400 | } | |
4401 | ||
4402 | return 0; | |
4403 | } | |
4404 | ||
4405 | /* ha->hardware_lock supposed to be held on entry */ | |
4406 | static int qlt_abort_task(struct scsi_qla_host *vha, | |
4407 | struct imm_ntfy_from_isp *iocb) | |
4408 | { | |
4409 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4410 | struct fc_port *sess; |
2d70c103 | 4411 | int loop_id; |
7560151b | 4412 | unsigned long flags; |
2d70c103 NB |
4413 | |
4414 | loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb); | |
4415 | ||
7560151b | 4416 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 4417 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b QT |
4418 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4419 | ||
2d70c103 NB |
4420 | if (sess == NULL) { |
4421 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025, | |
4422 | "qla_target(%d): task abort for unexisting " | |
4423 | "session\n", vha->vp_idx); | |
0e8cd71c | 4424 | return qlt_sched_sess_work(vha->vha_tgt.qla_tgt, |
2d70c103 NB |
4425 | QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb)); |
4426 | } | |
4427 | ||
4428 | return __qlt_abort_task(vha, iocb, sess); | |
4429 | } | |
4430 | ||
a6ca8878 AP |
4431 | void qlt_logo_completion_handler(fc_port_t *fcport, int rc) |
4432 | { | |
726b8548 QT |
4433 | if (rc != MBS_COMMAND_COMPLETE) { |
4434 | ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093, | |
4435 | "%s: se_sess %p / sess %p from" | |
4436 | " port %8phC loop_id %#04x s_id %02x:%02x:%02x" | |
4437 | " LOGO failed: %#x\n", | |
4438 | __func__, | |
4439 | fcport->se_sess, | |
4440 | fcport, | |
4441 | fcport->port_name, fcport->loop_id, | |
4442 | fcport->d_id.b.domain, fcport->d_id.b.area, | |
4443 | fcport->d_id.b.al_pa, rc); | |
4444 | } | |
4445 | ||
4446 | fcport->logout_completed = 1; | |
a6ca8878 AP |
4447 | } |
4448 | ||
a6ca8878 AP |
4449 | /* |
4450 | * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) | |
4451 | * | |
4452 | * Schedules sessions with matching port_id/loop_id but different wwn for | |
4453 | * deletion. Returns existing session with matching wwn if present. | |
4454 | * Null otherwise. | |
4455 | */ | |
726b8548 QT |
4456 | struct fc_port * |
4457 | qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn, | |
5d964837 | 4458 | port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess) |
a6ca8878 | 4459 | { |
5d964837 | 4460 | struct fc_port *sess = NULL, *other_sess; |
a6ca8878 AP |
4461 | uint64_t other_wwn; |
4462 | ||
b7bd104e AP |
4463 | *conflict_sess = NULL; |
4464 | ||
5d964837 | 4465 | list_for_each_entry(other_sess, &vha->vp_fcports, list) { |
a6ca8878 AP |
4466 | |
4467 | other_wwn = wwn_to_u64(other_sess->port_name); | |
4468 | ||
4469 | if (wwn == other_wwn) { | |
4470 | WARN_ON(sess); | |
4471 | sess = other_sess; | |
4472 | continue; | |
4473 | } | |
4474 | ||
4475 | /* find other sess with nport_id collision */ | |
37cacc0a | 4476 | if (port_id.b24 == other_sess->d_id.b24) { |
a6ca8878 | 4477 | if (loop_id != other_sess->loop_id) { |
726b8548 | 4478 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000c, |
a6ca8878 AP |
4479 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4480 | other_sess, other_sess->loop_id, other_wwn); | |
4481 | ||
4482 | /* | |
4483 | * logout_on_delete is set by default, but another | |
4484 | * session that has the same s_id/loop_id combo | |
4485 | * might have cleared it when requested this session | |
4486 | * deletion, so don't touch it | |
4487 | */ | |
4488 | qlt_schedule_sess_for_deletion(other_sess, true); | |
4489 | } else { | |
4490 | /* | |
4491 | * Another wwn used to have our s_id/loop_id | |
b7bd104e | 4492 | * kill the session, but don't free the loop_id |
a6ca8878 | 4493 | */ |
726b8548 QT |
4494 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xffff, |
4495 | "Invalidating sess %p loop_id %d wwn %llx.\n", | |
4496 | other_sess, other_sess->loop_id, other_wwn); | |
4497 | ||
4498 | ||
b7bd104e AP |
4499 | other_sess->keep_nport_handle = 1; |
4500 | *conflict_sess = other_sess; | |
a6ca8878 AP |
4501 | qlt_schedule_sess_for_deletion(other_sess, |
4502 | true); | |
4503 | } | |
4504 | continue; | |
4505 | } | |
4506 | ||
4507 | /* find other sess with nport handle collision */ | |
726b8548 QT |
4508 | if ((loop_id == other_sess->loop_id) && |
4509 | (loop_id != FC_NO_LOOP_ID)) { | |
4510 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000d, | |
a6ca8878 AP |
4511 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4512 | other_sess, other_sess->loop_id, other_wwn); | |
4513 | ||
4514 | /* Same loop_id but different s_id | |
4515 | * Ok to kill and logout */ | |
4516 | qlt_schedule_sess_for_deletion(other_sess, true); | |
4517 | } | |
4518 | } | |
4519 | ||
4520 | return sess; | |
4521 | } | |
4522 | ||
daddf5cf AP |
4523 | /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */ |
4524 | static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id) | |
4525 | { | |
4526 | struct qla_tgt_sess_op *op; | |
4527 | struct qla_tgt_cmd *cmd; | |
4528 | uint32_t key; | |
4529 | int count = 0; | |
4530 | ||
4531 | key = (((u32)s_id->b.domain << 16) | | |
4532 | ((u32)s_id->b.area << 8) | | |
4533 | ((u32)s_id->b.al_pa)); | |
4534 | ||
4535 | spin_lock(&vha->cmd_list_lock); | |
4536 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { | |
4537 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
41dc529a | 4538 | |
daddf5cf AP |
4539 | if (op_key == key) { |
4540 | op->aborted = true; | |
4541 | count++; | |
4542 | } | |
4543 | } | |
41dc529a QT |
4544 | |
4545 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
4546 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
4547 | if (op_key == key) { | |
4548 | op->aborted = true; | |
4549 | count++; | |
4550 | } | |
4551 | } | |
4552 | ||
daddf5cf AP |
4553 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
4554 | uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
4555 | if (cmd_key == key) { | |
193b50b9 | 4556 | cmd->aborted = 1; |
daddf5cf AP |
4557 | count++; |
4558 | } | |
4559 | } | |
4560 | spin_unlock(&vha->cmd_list_lock); | |
4561 | ||
4562 | return count; | |
4563 | } | |
4564 | ||
2d70c103 NB |
4565 | /* |
4566 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4567 | */ | |
4568 | static int qlt_24xx_handle_els(struct scsi_qla_host *vha, | |
4569 | struct imm_ntfy_from_isp *iocb) | |
4570 | { | |
a6ca8878 | 4571 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
df673274 | 4572 | struct qla_hw_data *ha = vha->hw; |
5d964837 | 4573 | struct fc_port *sess = NULL, *conflict_sess = NULL; |
a6ca8878 AP |
4574 | uint64_t wwn; |
4575 | port_id_t port_id; | |
4576 | uint16_t loop_id; | |
4577 | uint16_t wd3_lo; | |
2d70c103 | 4578 | int res = 0; |
5d964837 | 4579 | struct qlt_plogi_ack_t *pla; |
7560151b | 4580 | unsigned long flags; |
2d70c103 | 4581 | |
a6ca8878 AP |
4582 | wwn = wwn_to_u64(iocb->u.isp24.port_name); |
4583 | ||
4584 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
4585 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
4586 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
4587 | port_id.b.rsvd_1 = 0; | |
4588 | ||
4589 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
4590 | ||
726b8548 QT |
4591 | ql_dbg(ql_dbg_disc, vha, 0xf026, |
4592 | "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n", | |
4593 | vha->vp_idx, iocb->u.isp24.port_id[2], | |
4594 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
4595 | iocb->u.isp24.status_subcode, loop_id, | |
4596 | iocb->u.isp24.port_name); | |
2d70c103 | 4597 | |
a6ca8878 AP |
4598 | /* res = 1 means ack at the end of thread |
4599 | * res = 0 means ack async/later. | |
4600 | */ | |
2d70c103 NB |
4601 | switch (iocb->u.isp24.status_subcode) { |
4602 | case ELS_PLOGI: | |
a6ca8878 | 4603 | |
daddf5cf AP |
4604 | /* Mark all stale commands in qla_tgt_wq for deletion */ |
4605 | abort_cmds_for_s_id(vha, &port_id); | |
4606 | ||
7560151b QT |
4607 | if (wwn) { |
4608 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); | |
726b8548 QT |
4609 | sess = qlt_find_sess_invalidate_other(vha, wwn, |
4610 | port_id, loop_id, &conflict_sess); | |
7560151b QT |
4611 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); |
4612 | } | |
a6ca8878 | 4613 | |
726b8548 | 4614 | if (IS_SW_RESV_ADDR(port_id)) { |
a6ca8878 AP |
4615 | res = 1; |
4616 | break; | |
4617 | } | |
4618 | ||
b7bd104e AP |
4619 | pla = qlt_plogi_ack_find_add(vha, &port_id, iocb); |
4620 | if (!pla) { | |
a6ca8878 | 4621 | qlt_send_term_imm_notif(vha, iocb, 1); |
a6ca8878 AP |
4622 | break; |
4623 | } | |
4624 | ||
4625 | res = 0; | |
4626 | ||
726b8548 QT |
4627 | if (conflict_sess) { |
4628 | conflict_sess->login_gen++; | |
b7bd104e | 4629 | qlt_plogi_ack_link(vha, pla, conflict_sess, |
726b8548 QT |
4630 | QLT_PLOGI_LINK_CONFLICT); |
4631 | } | |
a6ca8878 | 4632 | |
726b8548 QT |
4633 | if (!sess) { |
4634 | pla->ref_count++; | |
4635 | qla24xx_post_newsess_work(vha, &port_id, | |
4636 | iocb->u.isp24.port_name, pla); | |
4637 | res = 0; | |
b7bd104e | 4638 | break; |
726b8548 | 4639 | } |
b7bd104e AP |
4640 | |
4641 | qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN); | |
726b8548 QT |
4642 | sess->fw_login_state = DSC_LS_PLOGI_PEND; |
4643 | sess->d_id = port_id; | |
4644 | sess->login_gen++; | |
4645 | ||
4646 | switch (sess->disc_state) { | |
4647 | case DSC_DELETED: | |
4648 | qlt_plogi_ack_unref(vha, pla); | |
4649 | break; | |
4650 | ||
4651 | default: | |
4652 | /* | |
4653 | * Under normal circumstances we want to release nport handle | |
4654 | * during LOGO process to avoid nport handle leaks inside FW. | |
4655 | * The exception is when LOGO is done while another PLOGI with | |
4656 | * the same nport handle is waiting as might be the case here. | |
4657 | * Note: there is always a possibily of a race where session | |
4658 | * deletion has already started for other reasons (e.g. ACL | |
4659 | * removal) and now PLOGI arrives: | |
4660 | * 1. if PLOGI arrived in FW after nport handle has been freed, | |
4661 | * FW must have assigned this PLOGI a new/same handle and we | |
4662 | * can proceed ACK'ing it as usual when session deletion | |
4663 | * completes. | |
4664 | * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT | |
4665 | * bit reached it, the handle has now been released. We'll | |
4666 | * get an error when we ACK this PLOGI. Nothing will be sent | |
4667 | * back to initiator. Initiator should eventually retry | |
4668 | * PLOGI and situation will correct itself. | |
4669 | */ | |
4670 | sess->keep_nport_handle = ((sess->loop_id == loop_id) && | |
4671 | (sess->d_id.b24 == port_id.b24)); | |
4672 | ||
4673 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
4674 | "%s %d %8phC post del sess\n", | |
4675 | __func__, __LINE__, sess->port_name); | |
4676 | ||
4677 | ||
4678 | qlt_schedule_sess_for_deletion_lock(sess); | |
4679 | break; | |
4680 | } | |
4681 | ||
a6ca8878 AP |
4682 | break; |
4683 | ||
2d70c103 | 4684 | case ELS_PRLI: |
a6ca8878 AP |
4685 | wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo); |
4686 | ||
7560151b QT |
4687 | if (wwn) { |
4688 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); | |
726b8548 QT |
4689 | sess = qlt_find_sess_invalidate_other(vha, wwn, port_id, |
4690 | loop_id, &conflict_sess); | |
7560151b QT |
4691 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); |
4692 | } | |
b7bd104e AP |
4693 | |
4694 | if (conflict_sess) { | |
4695 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b, | |
4696 | "PRLI with conflicting sess %p port %8phC\n", | |
4697 | conflict_sess, conflict_sess->port_name); | |
4698 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4699 | res = 0; | |
4700 | break; | |
4701 | } | |
a6ca8878 AP |
4702 | |
4703 | if (sess != NULL) { | |
ec7193e2 QT |
4704 | if (sess->fw_login_state != DSC_LS_PLOGI_PEND && |
4705 | sess->fw_login_state != DSC_LS_PLOGI_COMP) { | |
a6ca8878 AP |
4706 | /* |
4707 | * Impatient initiator sent PRLI before last | |
4708 | * PLOGI could finish. Will force him to re-try, | |
4709 | * while last one finishes. | |
4710 | */ | |
df673274 | 4711 | ql_log(ql_log_warn, sess->vha, 0xf095, |
a6ca8878 AP |
4712 | "sess %p PRLI received, before plogi ack.\n", |
4713 | sess); | |
4714 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4715 | res = 0; | |
4716 | break; | |
4717 | } | |
4718 | ||
4719 | /* | |
4720 | * This shouldn't happen under normal circumstances, | |
4721 | * since we have deleted the old session during PLOGI | |
4722 | */ | |
df673274 | 4723 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096, |
a6ca8878 AP |
4724 | "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n", |
4725 | sess->loop_id, sess, iocb->u.isp24.nport_handle); | |
4726 | ||
4727 | sess->local = 0; | |
4728 | sess->loop_id = loop_id; | |
37cacc0a | 4729 | sess->d_id = port_id; |
726b8548 | 4730 | sess->fw_login_state = DSC_LS_PRLI_PEND; |
a6ca8878 AP |
4731 | |
4732 | if (wd3_lo & BIT_7) | |
4733 | sess->conf_compl_supported = 1; | |
4734 | ||
726b8548 QT |
4735 | if ((wd3_lo & BIT_4) == 0) |
4736 | sess->port_type = FCT_INITIATOR; | |
4737 | else | |
4738 | sess->port_type = FCT_TARGET; | |
df673274 AP |
4739 | } |
4740 | res = 1; /* send notify ack */ | |
4741 | ||
4742 | /* Make session global (not used in fabric mode) */ | |
4743 | if (ha->current_topology != ISP_CFG_F) { | |
ec7193e2 QT |
4744 | if (sess) { |
4745 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
4746 | "%s %d %8phC post nack\n", | |
4747 | __func__, __LINE__, sess->port_name); | |
4748 | qla24xx_post_nack_work(vha, sess, iocb, | |
4749 | SRB_NACK_PRLI); | |
4750 | res = 0; | |
4751 | } else { | |
4752 | set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); | |
4753 | set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); | |
4754 | qla2xxx_wake_dpc(vha); | |
4755 | } | |
a6ca8878 | 4756 | } else { |
726b8548 QT |
4757 | if (sess) { |
4758 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
ec7193e2 QT |
4759 | "%s %d %8phC post nack\n", |
4760 | __func__, __LINE__, sess->port_name); | |
726b8548 QT |
4761 | qla24xx_post_nack_work(vha, sess, iocb, |
4762 | SRB_NACK_PRLI); | |
4763 | res = 0; | |
4764 | } | |
4765 | } | |
a6ca8878 AP |
4766 | break; |
4767 | ||
41dc529a QT |
4768 | case ELS_TPRLO: |
4769 | if (le16_to_cpu(iocb->u.isp24.flags) & | |
4770 | NOTIFY24XX_FLAGS_GLOBAL_TPRLO) { | |
4771 | loop_id = 0xFFFF; | |
4772 | qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS); | |
4773 | res = 1; | |
4774 | break; | |
4775 | } | |
4776 | /* drop through */ | |
2d70c103 NB |
4777 | case ELS_LOGO: |
4778 | case ELS_PRLO: | |
726b8548 QT |
4779 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
4780 | sess = qla2x00_find_fcport_by_loopid(vha, loop_id); | |
4781 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
4782 | ||
4783 | if (sess) { | |
4784 | sess->login_gen++; | |
4785 | sess->fw_login_state = DSC_LS_LOGO_PEND; | |
726b8548 QT |
4786 | sess->logo_ack_needed = 1; |
4787 | memcpy(sess->iocb, iocb, IOCB_SIZE); | |
4788 | } | |
4789 | ||
2d70c103 | 4790 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); |
726b8548 QT |
4791 | |
4792 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
4793 | "%s: logo %llx res %d sess %p ", | |
4794 | __func__, wwn, res, sess); | |
4795 | if (res == 0) { | |
41dc529a QT |
4796 | /* |
4797 | * cmd went upper layer, look for qlt_xmit_tm_rsp() | |
4798 | * for LOGO_ACK & sess delete | |
4799 | */ | |
726b8548 QT |
4800 | BUG_ON(!sess); |
4801 | res = 0; | |
4802 | } else { | |
41dc529a | 4803 | /* cmd did not go to upper layer. */ |
726b8548 QT |
4804 | if (sess) { |
4805 | qlt_schedule_sess_for_deletion_lock(sess); | |
4806 | res = 0; | |
4807 | } | |
4808 | /* else logo will be ack */ | |
4809 | } | |
2d70c103 NB |
4810 | break; |
4811 | case ELS_PDISC: | |
4812 | case ELS_ADISC: | |
4813 | { | |
0e8cd71c | 4814 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
4815 | if (tgt->link_reinit_iocb_pending) { |
4816 | qlt_send_notify_ack(vha, &tgt->link_reinit_iocb, | |
4817 | 0, 0, 0, 0, 0, 0); | |
4818 | tgt->link_reinit_iocb_pending = 0; | |
4819 | } | |
726b8548 QT |
4820 | |
4821 | sess = qla2x00_find_fcport_by_wwpn(vha, | |
4822 | iocb->u.isp24.port_name, 1); | |
4823 | if (sess) { | |
4824 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
4825 | "sess %p lid %d|%d DS %d LS %d\n", | |
4826 | sess, sess->loop_id, loop_id, | |
4827 | sess->disc_state, sess->fw_login_state); | |
4828 | } | |
4829 | ||
2d70c103 NB |
4830 | res = 1; /* send notify ack */ |
4831 | break; | |
4832 | } | |
4833 | ||
a6ca8878 | 4834 | case ELS_FLOGI: /* should never happen */ |
2d70c103 NB |
4835 | default: |
4836 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061, | |
4837 | "qla_target(%d): Unsupported ELS command %x " | |
4838 | "received\n", vha->vp_idx, iocb->u.isp24.status_subcode); | |
4839 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); | |
4840 | break; | |
4841 | } | |
4842 | ||
4843 | return res; | |
4844 | } | |
4845 | ||
2d70c103 NB |
4846 | /* |
4847 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4848 | */ | |
4849 | static void qlt_handle_imm_notify(struct scsi_qla_host *vha, | |
4850 | struct imm_ntfy_from_isp *iocb) | |
4851 | { | |
4852 | struct qla_hw_data *ha = vha->hw; | |
4853 | uint32_t add_flags = 0; | |
4854 | int send_notify_ack = 1; | |
4855 | uint16_t status; | |
4856 | ||
4857 | status = le16_to_cpu(iocb->u.isp2x.status); | |
4858 | switch (status) { | |
4859 | case IMM_NTFY_LIP_RESET: | |
4860 | { | |
4861 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032, | |
4862 | "qla_target(%d): LIP reset (loop %#x), subcode %x\n", | |
4863 | vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle), | |
4864 | iocb->u.isp24.status_subcode); | |
4865 | ||
4866 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
4867 | send_notify_ack = 0; | |
4868 | break; | |
4869 | } | |
4870 | ||
4871 | case IMM_NTFY_LIP_LINK_REINIT: | |
4872 | { | |
0e8cd71c | 4873 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
4874 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033, |
4875 | "qla_target(%d): LINK REINIT (loop %#x, " | |
4876 | "subcode %x)\n", vha->vp_idx, | |
4877 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
4878 | iocb->u.isp24.status_subcode); | |
4879 | if (tgt->link_reinit_iocb_pending) { | |
4880 | qlt_send_notify_ack(vha, &tgt->link_reinit_iocb, | |
4881 | 0, 0, 0, 0, 0, 0); | |
4882 | } | |
4883 | memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb)); | |
4884 | tgt->link_reinit_iocb_pending = 1; | |
4885 | /* | |
4886 | * QLogic requires to wait after LINK REINIT for possible | |
4887 | * PDISC or ADISC ELS commands | |
4888 | */ | |
4889 | send_notify_ack = 0; | |
4890 | break; | |
4891 | } | |
4892 | ||
4893 | case IMM_NTFY_PORT_LOGOUT: | |
4894 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034, | |
4895 | "qla_target(%d): Port logout (loop " | |
4896 | "%#x, subcode %x)\n", vha->vp_idx, | |
4897 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
4898 | iocb->u.isp24.status_subcode); | |
4899 | ||
4900 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0) | |
4901 | send_notify_ack = 0; | |
4902 | /* The sessions will be cleared in the callback, if needed */ | |
4903 | break; | |
4904 | ||
4905 | case IMM_NTFY_GLBL_TPRLO: | |
4906 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035, | |
4907 | "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status); | |
4908 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
4909 | send_notify_ack = 0; | |
4910 | /* The sessions will be cleared in the callback, if needed */ | |
4911 | break; | |
4912 | ||
4913 | case IMM_NTFY_PORT_CONFIG: | |
4914 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036, | |
4915 | "qla_target(%d): Port config changed (%x)\n", vha->vp_idx, | |
4916 | status); | |
4917 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
4918 | send_notify_ack = 0; | |
4919 | /* The sessions will be cleared in the callback, if needed */ | |
4920 | break; | |
4921 | ||
4922 | case IMM_NTFY_GLBL_LOGO: | |
4923 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a, | |
4924 | "qla_target(%d): Link failure detected\n", | |
4925 | vha->vp_idx); | |
4926 | /* I_T nexus loss */ | |
4927 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
4928 | send_notify_ack = 0; | |
4929 | break; | |
4930 | ||
4931 | case IMM_NTFY_IOCB_OVERFLOW: | |
4932 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b, | |
4933 | "qla_target(%d): Cannot provide requested " | |
4934 | "capability (IOCB overflowed the immediate notify " | |
4935 | "resource count)\n", vha->vp_idx); | |
4936 | break; | |
4937 | ||
4938 | case IMM_NTFY_ABORT_TASK: | |
4939 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037, | |
4940 | "qla_target(%d): Abort Task (S %08x I %#x -> " | |
4941 | "L %#x)\n", vha->vp_idx, | |
4942 | le16_to_cpu(iocb->u.isp2x.seq_id), | |
4943 | GET_TARGET_ID(ha, (struct atio_from_isp *)iocb), | |
4944 | le16_to_cpu(iocb->u.isp2x.lun)); | |
4945 | if (qlt_abort_task(vha, iocb) == 0) | |
4946 | send_notify_ack = 0; | |
4947 | break; | |
4948 | ||
4949 | case IMM_NTFY_RESOURCE: | |
4950 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c, | |
4951 | "qla_target(%d): Out of resources, host %ld\n", | |
4952 | vha->vp_idx, vha->host_no); | |
4953 | break; | |
4954 | ||
4955 | case IMM_NTFY_MSG_RX: | |
4956 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038, | |
4957 | "qla_target(%d): Immediate notify task %x\n", | |
4958 | vha->vp_idx, iocb->u.isp2x.task_flags); | |
4959 | if (qlt_handle_task_mgmt(vha, iocb) == 0) | |
4960 | send_notify_ack = 0; | |
4961 | break; | |
4962 | ||
4963 | case IMM_NTFY_ELS: | |
4964 | if (qlt_24xx_handle_els(vha, iocb) == 0) | |
4965 | send_notify_ack = 0; | |
4966 | break; | |
2d70c103 NB |
4967 | default: |
4968 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d, | |
4969 | "qla_target(%d): Received unknown immediate " | |
4970 | "notify status %x\n", vha->vp_idx, status); | |
4971 | break; | |
4972 | } | |
4973 | ||
4974 | if (send_notify_ack) | |
4975 | qlt_send_notify_ack(vha, iocb, add_flags, 0, 0, 0, 0, 0); | |
4976 | } | |
4977 | ||
4978 | /* | |
4979 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4980 | * This function sends busy to ISP 2xxx or 24xx. | |
4981 | */ | |
33e79977 | 4982 | static int __qlt_send_busy(struct scsi_qla_host *vha, |
2d70c103 NB |
4983 | struct atio_from_isp *atio, uint16_t status) |
4984 | { | |
4985 | struct ctio7_to_24xx *ctio24; | |
4986 | struct qla_hw_data *ha = vha->hw; | |
4987 | request_t *pkt; | |
5d964837 | 4988 | struct fc_port *sess = NULL; |
7560151b | 4989 | unsigned long flags; |
2d70c103 | 4990 | |
7560151b | 4991 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
4992 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, |
4993 | atio->u.isp24.fcp_hdr.s_id); | |
7560151b | 4994 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 4995 | if (!sess) { |
a07100e0 | 4996 | qlt_send_term_exchange(vha, NULL, atio, 1, 0); |
33e79977 | 4997 | return 0; |
2d70c103 NB |
4998 | } |
4999 | /* Sending marker isn't necessary, since we called from ISR */ | |
5000 | ||
5001 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); | |
5002 | if (!pkt) { | |
667024a3 | 5003 | ql_dbg(ql_dbg_io, vha, 0x3063, |
2d70c103 NB |
5004 | "qla_target(%d): %s failed: unable to allocate " |
5005 | "request packet", vha->vp_idx, __func__); | |
33e79977 | 5006 | return -ENOMEM; |
2d70c103 NB |
5007 | } |
5008 | ||
ce1025cd | 5009 | vha->tgt_counters.num_q_full_sent++; |
2d70c103 NB |
5010 | pkt->entry_count = 1; |
5011 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
5012 | ||
5013 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
5014 | ctio24->entry_type = CTIO_TYPE7; | |
5015 | ctio24->nport_handle = sess->loop_id; | |
ad950360 | 5016 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
5017 | ctio24->vp_index = vha->vp_idx; |
5018 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
5019 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
5020 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
5021 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
5022 | ctio24->u.status1.flags = (atio->u.isp24.attr << 9) | | |
ad950360 | 5023 | cpu_to_le16( |
2d70c103 NB |
5024 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS | |
5025 | CTIO7_FLAGS_DONT_RET_CTIO); | |
5026 | /* | |
5027 | * CTIO from fw w/o se_cmd doesn't provide enough info to retry it, | |
5028 | * if the explicit conformation is used. | |
5029 | */ | |
5030 | ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id); | |
5031 | ctio24->u.status1.scsi_status = cpu_to_le16(status); | |
63163e06 HM |
5032 | /* Memory Barrier */ |
5033 | wmb(); | |
2d70c103 | 5034 | qla2x00_start_iocbs(vha, vha->req); |
33e79977 QT |
5035 | return 0; |
5036 | } | |
5037 | ||
5038 | /* | |
5039 | * This routine is used to allocate a command for either a QFull condition | |
5040 | * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go | |
5041 | * out previously. | |
5042 | */ | |
5043 | static void | |
5044 | qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, | |
5045 | struct atio_from_isp *atio, uint16_t status, int qfull) | |
5046 | { | |
5047 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
5048 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5049 | struct fc_port *sess; |
33e79977 QT |
5050 | struct se_session *se_sess; |
5051 | struct qla_tgt_cmd *cmd; | |
5052 | int tag; | |
5053 | ||
5054 | if (unlikely(tgt->tgt_stop)) { | |
5055 | ql_dbg(ql_dbg_io, vha, 0x300a, | |
5056 | "New command while device %p is shutting down\n", tgt); | |
5057 | return; | |
5058 | } | |
5059 | ||
5060 | if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) { | |
5061 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5062 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5063 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5064 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5065 | vha->hw->tgt.num_qfull_cmds_dropped; |
5066 | ||
5067 | ql_dbg(ql_dbg_io, vha, 0x3068, | |
5068 | "qla_target(%d): %s: QFull CMD dropped[%d]\n", | |
5069 | vha->vp_idx, __func__, | |
5070 | vha->hw->tgt.num_qfull_cmds_dropped); | |
5071 | ||
5072 | qlt_chk_exch_leak_thresh_hold(vha); | |
5073 | return; | |
5074 | } | |
5075 | ||
5076 | sess = ha->tgt.tgt_ops->find_sess_by_s_id | |
5077 | (vha, atio->u.isp24.fcp_hdr.s_id); | |
5078 | if (!sess) | |
5079 | return; | |
5080 | ||
5081 | se_sess = sess->se_sess; | |
5082 | ||
5083 | tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); | |
5084 | if (tag < 0) | |
5085 | return; | |
5086 | ||
5087 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
5088 | if (!cmd) { | |
5089 | ql_dbg(ql_dbg_io, vha, 0x3009, | |
5090 | "qla_target(%d): %s: Allocation of cmd failed\n", | |
5091 | vha->vp_idx, __func__); | |
5092 | ||
5093 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5094 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5095 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5096 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5097 | vha->hw->tgt.num_qfull_cmds_dropped; |
5098 | ||
5099 | qlt_chk_exch_leak_thresh_hold(vha); | |
5100 | return; | |
5101 | } | |
5102 | ||
5103 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
5104 | ||
5105 | qlt_incr_num_pend_cmds(vha); | |
5106 | INIT_LIST_HEAD(&cmd->cmd_list); | |
5107 | memcpy(&cmd->atio, atio, sizeof(*atio)); | |
5108 | ||
5109 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
5110 | cmd->vha = vha; | |
5111 | cmd->reset_count = vha->hw->chip_reset; | |
5112 | cmd->q_full = 1; | |
5113 | ||
5114 | if (qfull) { | |
5115 | cmd->q_full = 1; | |
5116 | /* NOTE: borrowing the state field to carry the status */ | |
5117 | cmd->state = status; | |
5118 | } else | |
5119 | cmd->term_exchg = 1; | |
5120 | ||
5121 | list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list); | |
5122 | ||
5123 | vha->hw->tgt.num_qfull_cmds_alloc++; | |
5124 | if (vha->hw->tgt.num_qfull_cmds_alloc > | |
fc90adaf JC |
5125 | vha->qla_stats.stat_max_qfull_cmds_alloc) |
5126 | vha->qla_stats.stat_max_qfull_cmds_alloc = | |
33e79977 QT |
5127 | vha->hw->tgt.num_qfull_cmds_alloc; |
5128 | } | |
5129 | ||
5130 | int | |
5131 | qlt_free_qfull_cmds(struct scsi_qla_host *vha) | |
5132 | { | |
5133 | struct qla_hw_data *ha = vha->hw; | |
5134 | unsigned long flags; | |
5135 | struct qla_tgt_cmd *cmd, *tcmd; | |
5136 | struct list_head free_list; | |
5137 | int rc = 0; | |
5138 | ||
5139 | if (list_empty(&ha->tgt.q_full_list)) | |
5140 | return 0; | |
5141 | ||
5142 | INIT_LIST_HEAD(&free_list); | |
5143 | ||
5144 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
5145 | ||
5146 | if (list_empty(&ha->tgt.q_full_list)) { | |
5147 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
5148 | return 0; | |
5149 | } | |
5150 | ||
5151 | list_for_each_entry_safe(cmd, tcmd, &ha->tgt.q_full_list, cmd_list) { | |
5152 | if (cmd->q_full) | |
5153 | /* cmd->state is a borrowed field to hold status */ | |
5154 | rc = __qlt_send_busy(vha, &cmd->atio, cmd->state); | |
5155 | else if (cmd->term_exchg) | |
5156 | rc = __qlt_send_term_exchange(vha, NULL, &cmd->atio); | |
5157 | ||
5158 | if (rc == -ENOMEM) | |
5159 | break; | |
5160 | ||
5161 | if (cmd->q_full) | |
5162 | ql_dbg(ql_dbg_io, vha, 0x3006, | |
5163 | "%s: busy sent for ox_id[%04x]\n", __func__, | |
5164 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5165 | else if (cmd->term_exchg) | |
5166 | ql_dbg(ql_dbg_io, vha, 0x3007, | |
5167 | "%s: Term exchg sent for ox_id[%04x]\n", __func__, | |
5168 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5169 | else | |
5170 | ql_dbg(ql_dbg_io, vha, 0x3008, | |
5171 | "%s: Unexpected cmd in QFull list %p\n", __func__, | |
5172 | cmd); | |
5173 | ||
5174 | list_del(&cmd->cmd_list); | |
5175 | list_add_tail(&cmd->cmd_list, &free_list); | |
5176 | ||
5177 | /* piggy back on hardware_lock for protection */ | |
5178 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
5179 | } | |
5180 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
5181 | ||
5182 | cmd = NULL; | |
5183 | ||
5184 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
5185 | list_del(&cmd->cmd_list); | |
5186 | /* This cmd was never sent to TCM. There is no need | |
5187 | * to schedule free or call free_cmd | |
5188 | */ | |
5189 | qlt_free_cmd(cmd); | |
5190 | } | |
5191 | return rc; | |
5192 | } | |
5193 | ||
5194 | static void | |
5195 | qlt_send_busy(struct scsi_qla_host *vha, | |
5196 | struct atio_from_isp *atio, uint16_t status) | |
5197 | { | |
5198 | int rc = 0; | |
5199 | ||
5200 | rc = __qlt_send_busy(vha, atio, status); | |
5201 | if (rc == -ENOMEM) | |
5202 | qlt_alloc_qfull_cmd(vha, atio, status, 1); | |
5203 | } | |
5204 | ||
5205 | static int | |
5206 | qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, | |
8b666809 | 5207 | struct atio_from_isp *atio, bool ha_locked) |
33e79977 QT |
5208 | { |
5209 | struct qla_hw_data *ha = vha->hw; | |
5210 | uint16_t status; | |
8b666809 | 5211 | unsigned long flags; |
33e79977 QT |
5212 | |
5213 | if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha)) | |
5214 | return 0; | |
5215 | ||
8b666809 QT |
5216 | if (!ha_locked) |
5217 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
33e79977 QT |
5218 | status = temp_sam_status; |
5219 | qlt_send_busy(vha, atio, status); | |
8b666809 QT |
5220 | if (!ha_locked) |
5221 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
5222 | ||
33e79977 | 5223 | return 1; |
2d70c103 NB |
5224 | } |
5225 | ||
5226 | /* ha->hardware_lock supposed to be held on entry */ | |
5227 | /* called via callback from qla2xxx */ | |
5228 | static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, | |
2f424b9b | 5229 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 NB |
5230 | { |
5231 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5232 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 5233 | int rc; |
2f424b9b | 5234 | unsigned long flags; |
2d70c103 NB |
5235 | |
5236 | if (unlikely(tgt == NULL)) { | |
ec7193e2 | 5237 | ql_dbg(ql_dbg_tgt, vha, 0x3064, |
2d70c103 NB |
5238 | "ATIO pkt, but no tgt (ha %p)", ha); |
5239 | return; | |
5240 | } | |
2d70c103 NB |
5241 | /* |
5242 | * In tgt_stop mode we also should allow all requests to pass. | |
5243 | * Otherwise, some commands can stuck. | |
5244 | */ | |
5245 | ||
2f424b9b | 5246 | tgt->atio_irq_cmd_count++; |
2d70c103 NB |
5247 | |
5248 | switch (atio->u.raw.entry_type) { | |
5249 | case ATIO_TYPE7: | |
2d70c103 NB |
5250 | if (unlikely(atio->u.isp24.exchange_addr == |
5251 | ATIO_EXCHANGE_ADDRESS_UNKNOWN)) { | |
667024a3 | 5252 | ql_dbg(ql_dbg_io, vha, 0x3065, |
2d70c103 NB |
5253 | "qla_target(%d): ATIO_TYPE7 " |
5254 | "received with UNKNOWN exchange address, " | |
5255 | "sending QUEUE_FULL\n", vha->vp_idx); | |
2f424b9b QT |
5256 | if (!ha_locked) |
5257 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2d70c103 | 5258 | qlt_send_busy(vha, atio, SAM_STAT_TASK_SET_FULL); |
2f424b9b QT |
5259 | if (!ha_locked) |
5260 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2d70c103 NB |
5261 | break; |
5262 | } | |
33e79977 QT |
5263 | |
5264 | ||
5265 | ||
5266 | if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) { | |
8b666809 | 5267 | rc = qlt_chk_qfull_thresh_hold(vha, atio, ha_locked); |
33e79977 | 5268 | if (rc != 0) { |
2f424b9b | 5269 | tgt->atio_irq_cmd_count--; |
33e79977 QT |
5270 | return; |
5271 | } | |
2d70c103 | 5272 | rc = qlt_handle_cmd_for_atio(vha, atio); |
33e79977 | 5273 | } else { |
2d70c103 | 5274 | rc = qlt_handle_task_mgmt(vha, atio); |
33e79977 | 5275 | } |
2d70c103 NB |
5276 | if (unlikely(rc != 0)) { |
5277 | if (rc == -ESRCH) { | |
2f424b9b QT |
5278 | if (!ha_locked) |
5279 | spin_lock_irqsave | |
5280 | (&ha->hardware_lock, flags); | |
5281 | ||
2d70c103 NB |
5282 | #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */ |
5283 | qlt_send_busy(vha, atio, SAM_STAT_BUSY); | |
5284 | #else | |
a07100e0 | 5285 | qlt_send_term_exchange(vha, NULL, atio, 1, 0); |
2d70c103 | 5286 | #endif |
2f424b9b QT |
5287 | |
5288 | if (!ha_locked) | |
5289 | spin_unlock_irqrestore | |
5290 | (&ha->hardware_lock, flags); | |
5291 | ||
2d70c103 NB |
5292 | } else { |
5293 | if (tgt->tgt_stop) { | |
5294 | ql_dbg(ql_dbg_tgt, vha, 0xe059, | |
5295 | "qla_target: Unable to send " | |
5296 | "command to target for req, " | |
5297 | "ignoring.\n"); | |
5298 | } else { | |
5299 | ql_dbg(ql_dbg_tgt, vha, 0xe05a, | |
5300 | "qla_target(%d): Unable to send " | |
5301 | "command to target, sending BUSY " | |
5302 | "status.\n", vha->vp_idx); | |
2f424b9b QT |
5303 | if (!ha_locked) |
5304 | spin_lock_irqsave( | |
5305 | &ha->hardware_lock, flags); | |
2d70c103 | 5306 | qlt_send_busy(vha, atio, SAM_STAT_BUSY); |
2f424b9b QT |
5307 | if (!ha_locked) |
5308 | spin_unlock_irqrestore( | |
5309 | &ha->hardware_lock, flags); | |
2d70c103 NB |
5310 | } |
5311 | } | |
5312 | } | |
5313 | break; | |
5314 | ||
5315 | case IMMED_NOTIFY_TYPE: | |
5316 | { | |
5317 | if (unlikely(atio->u.isp2x.entry_status != 0)) { | |
5318 | ql_dbg(ql_dbg_tgt, vha, 0xe05b, | |
5319 | "qla_target(%d): Received ATIO packet %x " | |
5320 | "with error status %x\n", vha->vp_idx, | |
5321 | atio->u.raw.entry_type, | |
5322 | atio->u.isp2x.entry_status); | |
5323 | break; | |
5324 | } | |
5325 | ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO"); | |
2f424b9b QT |
5326 | |
5327 | if (!ha_locked) | |
5328 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2d70c103 | 5329 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio); |
2f424b9b QT |
5330 | if (!ha_locked) |
5331 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2d70c103 NB |
5332 | break; |
5333 | } | |
5334 | ||
5335 | default: | |
5336 | ql_dbg(ql_dbg_tgt, vha, 0xe05c, | |
5337 | "qla_target(%d): Received unknown ATIO atio " | |
5338 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
5339 | break; | |
5340 | } | |
5341 | ||
2f424b9b | 5342 | tgt->atio_irq_cmd_count--; |
2d70c103 NB |
5343 | } |
5344 | ||
5345 | /* ha->hardware_lock supposed to be held on entry */ | |
5346 | /* called via callback from qla2xxx */ | |
5347 | static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt) | |
5348 | { | |
5349 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5350 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
5351 | |
5352 | if (unlikely(tgt == NULL)) { | |
5353 | ql_dbg(ql_dbg_tgt, vha, 0xe05d, | |
5354 | "qla_target(%d): Response pkt %x received, but no " | |
5355 | "tgt (ha %p)\n", vha->vp_idx, pkt->entry_type, ha); | |
5356 | return; | |
5357 | } | |
5358 | ||
2d70c103 NB |
5359 | /* |
5360 | * In tgt_stop mode we also should allow all requests to pass. | |
5361 | * Otherwise, some commands can stuck. | |
5362 | */ | |
5363 | ||
5364 | tgt->irq_cmd_count++; | |
5365 | ||
5366 | switch (pkt->entry_type) { | |
f83adb61 | 5367 | case CTIO_CRC2: |
2d70c103 NB |
5368 | case CTIO_TYPE7: |
5369 | { | |
5370 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
2d70c103 NB |
5371 | qlt_do_ctio_completion(vha, entry->handle, |
5372 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), | |
5373 | entry); | |
5374 | break; | |
5375 | } | |
5376 | ||
5377 | case ACCEPT_TGT_IO_TYPE: | |
5378 | { | |
5379 | struct atio_from_isp *atio = (struct atio_from_isp *)pkt; | |
5380 | int rc; | |
2d70c103 | 5381 | if (atio->u.isp2x.status != |
ad950360 | 5382 | cpu_to_le16(ATIO_CDB_VALID)) { |
2d70c103 NB |
5383 | ql_dbg(ql_dbg_tgt, vha, 0xe05e, |
5384 | "qla_target(%d): ATIO with error " | |
5385 | "status %x received\n", vha->vp_idx, | |
5386 | le16_to_cpu(atio->u.isp2x.status)); | |
5387 | break; | |
5388 | } | |
2d70c103 | 5389 | |
8b666809 | 5390 | rc = qlt_chk_qfull_thresh_hold(vha, atio, true); |
33e79977 QT |
5391 | if (rc != 0) { |
5392 | tgt->irq_cmd_count--; | |
5393 | return; | |
5394 | } | |
5395 | ||
2d70c103 NB |
5396 | rc = qlt_handle_cmd_for_atio(vha, atio); |
5397 | if (unlikely(rc != 0)) { | |
5398 | if (rc == -ESRCH) { | |
5399 | #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */ | |
5400 | qlt_send_busy(vha, atio, 0); | |
5401 | #else | |
a07100e0 | 5402 | qlt_send_term_exchange(vha, NULL, atio, 1, 0); |
2d70c103 NB |
5403 | #endif |
5404 | } else { | |
5405 | if (tgt->tgt_stop) { | |
5406 | ql_dbg(ql_dbg_tgt, vha, 0xe05f, | |
5407 | "qla_target: Unable to send " | |
5408 | "command to target, sending TERM " | |
5409 | "EXCHANGE for rsp\n"); | |
5410 | qlt_send_term_exchange(vha, NULL, | |
a07100e0 | 5411 | atio, 1, 0); |
2d70c103 NB |
5412 | } else { |
5413 | ql_dbg(ql_dbg_tgt, vha, 0xe060, | |
5414 | "qla_target(%d): Unable to send " | |
5415 | "command to target, sending BUSY " | |
5416 | "status\n", vha->vp_idx); | |
5417 | qlt_send_busy(vha, atio, 0); | |
5418 | } | |
5419 | } | |
5420 | } | |
5421 | } | |
5422 | break; | |
5423 | ||
5424 | case CONTINUE_TGT_IO_TYPE: | |
5425 | { | |
5426 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
2d70c103 NB |
5427 | qlt_do_ctio_completion(vha, entry->handle, |
5428 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), | |
5429 | entry); | |
5430 | break; | |
5431 | } | |
5432 | ||
5433 | case CTIO_A64_TYPE: | |
5434 | { | |
5435 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
2d70c103 NB |
5436 | qlt_do_ctio_completion(vha, entry->handle, |
5437 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), | |
5438 | entry); | |
5439 | break; | |
5440 | } | |
5441 | ||
5442 | case IMMED_NOTIFY_TYPE: | |
5443 | ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n"); | |
5444 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt); | |
5445 | break; | |
5446 | ||
5447 | case NOTIFY_ACK_TYPE: | |
5448 | if (tgt->notify_ack_expected > 0) { | |
5449 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
5450 | ql_dbg(ql_dbg_tgt, vha, 0xe036, | |
5451 | "NOTIFY_ACK seq %08x status %x\n", | |
5452 | le16_to_cpu(entry->u.isp2x.seq_id), | |
5453 | le16_to_cpu(entry->u.isp2x.status)); | |
5454 | tgt->notify_ack_expected--; | |
5455 | if (entry->u.isp2x.status != | |
ad950360 | 5456 | cpu_to_le16(NOTIFY_ACK_SUCCESS)) { |
2d70c103 NB |
5457 | ql_dbg(ql_dbg_tgt, vha, 0xe061, |
5458 | "qla_target(%d): NOTIFY_ACK " | |
5459 | "failed %x\n", vha->vp_idx, | |
5460 | le16_to_cpu(entry->u.isp2x.status)); | |
5461 | } | |
5462 | } else { | |
5463 | ql_dbg(ql_dbg_tgt, vha, 0xe062, | |
5464 | "qla_target(%d): Unexpected NOTIFY_ACK received\n", | |
5465 | vha->vp_idx); | |
5466 | } | |
5467 | break; | |
5468 | ||
5469 | case ABTS_RECV_24XX: | |
5470 | ql_dbg(ql_dbg_tgt, vha, 0xe037, | |
5471 | "ABTS_RECV_24XX: instance %d\n", vha->vp_idx); | |
5472 | qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt); | |
5473 | break; | |
5474 | ||
5475 | case ABTS_RESP_24XX: | |
5476 | if (tgt->abts_resp_expected > 0) { | |
5477 | struct abts_resp_from_24xx_fw *entry = | |
5478 | (struct abts_resp_from_24xx_fw *)pkt; | |
5479 | ql_dbg(ql_dbg_tgt, vha, 0xe038, | |
5480 | "ABTS_RESP_24XX: compl_status %x\n", | |
5481 | entry->compl_status); | |
5482 | tgt->abts_resp_expected--; | |
5483 | if (le16_to_cpu(entry->compl_status) != | |
5484 | ABTS_RESP_COMPL_SUCCESS) { | |
5485 | if ((entry->error_subcode1 == 0x1E) && | |
5486 | (entry->error_subcode2 == 0)) { | |
5487 | /* | |
5488 | * We've got a race here: aborted | |
5489 | * exchange not terminated, i.e. | |
5490 | * response for the aborted command was | |
5491 | * sent between the abort request was | |
5492 | * received and processed. | |
5493 | * Unfortunately, the firmware has a | |
5494 | * silly requirement that all aborted | |
5495 | * exchanges must be explicitely | |
5496 | * terminated, otherwise it refuses to | |
5497 | * send responses for the abort | |
5498 | * requests. So, we have to | |
5499 | * (re)terminate the exchange and retry | |
5500 | * the abort response. | |
5501 | */ | |
5502 | qlt_24xx_retry_term_exchange(vha, | |
5503 | entry); | |
5504 | } else | |
5505 | ql_dbg(ql_dbg_tgt, vha, 0xe063, | |
5506 | "qla_target(%d): ABTS_RESP_24XX " | |
5507 | "failed %x (subcode %x:%x)", | |
5508 | vha->vp_idx, entry->compl_status, | |
5509 | entry->error_subcode1, | |
5510 | entry->error_subcode2); | |
5511 | } | |
5512 | } else { | |
5513 | ql_dbg(ql_dbg_tgt, vha, 0xe064, | |
5514 | "qla_target(%d): Unexpected ABTS_RESP_24XX " | |
5515 | "received\n", vha->vp_idx); | |
5516 | } | |
5517 | break; | |
5518 | ||
5519 | default: | |
5520 | ql_dbg(ql_dbg_tgt, vha, 0xe065, | |
5521 | "qla_target(%d): Received unknown response pkt " | |
5522 | "type %x\n", vha->vp_idx, pkt->entry_type); | |
5523 | break; | |
5524 | } | |
5525 | ||
5526 | tgt->irq_cmd_count--; | |
5527 | } | |
5528 | ||
5529 | /* | |
5530 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
5531 | */ | |
5532 | void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, | |
5533 | uint16_t *mailbox) | |
5534 | { | |
5535 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5536 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
4f1d0f19 | 5537 | int login_code; |
2d70c103 | 5538 | |
2d70c103 NB |
5539 | if (!ha->tgt.tgt_ops) |
5540 | return; | |
5541 | ||
5542 | if (unlikely(tgt == NULL)) { | |
5543 | ql_dbg(ql_dbg_tgt, vha, 0xe03a, | |
5544 | "ASYNC EVENT %#x, but no tgt (ha %p)\n", code, ha); | |
5545 | return; | |
5546 | } | |
5547 | ||
5548 | if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) && | |
5549 | IS_QLA2100(ha)) | |
5550 | return; | |
5551 | /* | |
5552 | * In tgt_stop mode we also should allow all requests to pass. | |
5553 | * Otherwise, some commands can stuck. | |
5554 | */ | |
5555 | ||
5556 | tgt->irq_cmd_count++; | |
5557 | ||
5558 | switch (code) { | |
5559 | case MBA_RESET: /* Reset */ | |
5560 | case MBA_SYSTEM_ERR: /* System Error */ | |
5561 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
5562 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ | |
5563 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a, | |
5564 | "qla_target(%d): System error async event %#x " | |
6efb3c0a | 5565 | "occurred", vha->vp_idx, code); |
2d70c103 NB |
5566 | break; |
5567 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */ | |
5568 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
5569 | break; | |
5570 | ||
5571 | case MBA_LOOP_UP: | |
5572 | { | |
5573 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b, | |
6efb3c0a | 5574 | "qla_target(%d): Async LOOP_UP occurred " |
4f1d0f19 AC |
5575 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, |
5576 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5577 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 NB |
5578 | if (tgt->link_reinit_iocb_pending) { |
5579 | qlt_send_notify_ack(vha, (void *)&tgt->link_reinit_iocb, | |
5580 | 0, 0, 0, 0, 0, 0); | |
5581 | tgt->link_reinit_iocb_pending = 0; | |
5582 | } | |
5583 | break; | |
5584 | } | |
5585 | ||
5586 | case MBA_LIP_OCCURRED: | |
5587 | case MBA_LOOP_DOWN: | |
5588 | case MBA_LIP_RESET: | |
5589 | case MBA_RSCN_UPDATE: | |
5590 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c, | |
6efb3c0a | 5591 | "qla_target(%d): Async event %#x occurred " |
4f1d0f19 AC |
5592 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
5593 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5594 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 NB |
5595 | break; |
5596 | ||
ead03855 QT |
5597 | case MBA_REJECTED_FCP_CMD: |
5598 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, | |
5599 | "qla_target(%d): Async event LS_REJECT occurred " | |
5600 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, | |
5601 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5602 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
5603 | ||
5604 | if (le16_to_cpu(mailbox[3]) == 1) { | |
5605 | /* exchange starvation. */ | |
5606 | vha->hw->exch_starvation++; | |
5607 | if (vha->hw->exch_starvation > 5) { | |
5608 | ql_log(ql_log_warn, vha, 0xffff, | |
5609 | "Exchange starvation-. Resetting RISC\n"); | |
5610 | ||
5611 | vha->hw->exch_starvation = 0; | |
5612 | if (IS_P3P_TYPE(vha->hw)) | |
5613 | set_bit(FCOE_CTX_RESET_NEEDED, | |
5614 | &vha->dpc_flags); | |
5615 | else | |
5616 | set_bit(ISP_ABORT_NEEDED, | |
5617 | &vha->dpc_flags); | |
5618 | qla2xxx_wake_dpc(vha); | |
5619 | } | |
5620 | } | |
5621 | break; | |
5622 | ||
2d70c103 NB |
5623 | case MBA_PORT_UPDATE: |
5624 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d, | |
5625 | "qla_target(%d): Port update async event %#x " | |
6efb3c0a | 5626 | "occurred: updating the ports database (m[0]=%x, m[1]=%x, " |
4f1d0f19 AC |
5627 | "m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
5628 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5629 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
5630 | ||
5631 | login_code = le16_to_cpu(mailbox[2]); | |
ead03855 | 5632 | if (login_code == 0x4) { |
2d70c103 NB |
5633 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e, |
5634 | "Async MB 2: Got PLOGI Complete\n"); | |
ead03855 QT |
5635 | vha->hw->exch_starvation = 0; |
5636 | } else if (login_code == 0x7) | |
2d70c103 NB |
5637 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f, |
5638 | "Async MB 2: Port Logged Out\n"); | |
5639 | break; | |
2d70c103 | 5640 | default: |
2d70c103 NB |
5641 | break; |
5642 | } | |
5643 | ||
5644 | tgt->irq_cmd_count--; | |
5645 | } | |
5646 | ||
5647 | static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha, | |
5648 | uint16_t loop_id) | |
5649 | { | |
726b8548 | 5650 | fc_port_t *fcport, *tfcp, *del; |
2d70c103 | 5651 | int rc; |
726b8548 QT |
5652 | unsigned long flags; |
5653 | u8 newfcport = 0; | |
2d70c103 NB |
5654 | |
5655 | fcport = kzalloc(sizeof(*fcport), GFP_KERNEL); | |
5656 | if (!fcport) { | |
5657 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f, | |
5658 | "qla_target(%d): Allocation of tmp FC port failed", | |
5659 | vha->vp_idx); | |
5660 | return NULL; | |
5661 | } | |
5662 | ||
2d70c103 NB |
5663 | fcport->loop_id = loop_id; |
5664 | ||
15f30a57 | 5665 | rc = qla24xx_gpdb_wait(vha, fcport, 0); |
2d70c103 NB |
5666 | if (rc != QLA_SUCCESS) { |
5667 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070, | |
5668 | "qla_target(%d): Failed to retrieve fcport " | |
5669 | "information -- get_port_database() returned %x " | |
5670 | "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id); | |
5671 | kfree(fcport); | |
5672 | return NULL; | |
5673 | } | |
5674 | ||
726b8548 QT |
5675 | del = NULL; |
5676 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
5677 | tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1); | |
5678 | ||
5679 | if (tfcp) { | |
5680 | tfcp->d_id = fcport->d_id; | |
5681 | tfcp->port_type = fcport->port_type; | |
5682 | tfcp->supported_classes = fcport->supported_classes; | |
5683 | tfcp->flags |= fcport->flags; | |
5684 | ||
5685 | del = fcport; | |
5686 | fcport = tfcp; | |
5687 | } else { | |
5688 | if (vha->hw->current_topology == ISP_CFG_F) | |
5689 | fcport->flags |= FCF_FABRIC_DEVICE; | |
5690 | ||
5691 | list_add_tail(&fcport->list, &vha->vp_fcports); | |
5692 | if (!IS_SW_RESV_ADDR(fcport->d_id)) | |
5693 | vha->fcport_count++; | |
5694 | fcport->login_gen++; | |
5695 | fcport->disc_state = DSC_LOGIN_COMPLETE; | |
5696 | fcport->login_succ = 1; | |
5697 | newfcport = 1; | |
5698 | } | |
5699 | ||
5700 | fcport->deleted = 0; | |
5701 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
5702 | ||
5703 | switch (vha->host->active_mode) { | |
5704 | case MODE_INITIATOR: | |
5705 | case MODE_DUAL: | |
5706 | if (newfcport) { | |
5707 | if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) { | |
5708 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
5709 | "%s %d %8phC post upd_fcport fcp_cnt %d\n", | |
5710 | __func__, __LINE__, fcport->port_name, vha->fcport_count); | |
5711 | qla24xx_post_upd_fcport_work(vha, fcport); | |
5712 | } else { | |
5713 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
5714 | "%s %d %8phC post gpsc fcp_cnt %d\n", | |
5715 | __func__, __LINE__, fcport->port_name, vha->fcport_count); | |
5716 | qla24xx_post_gpsc_work(vha, fcport); | |
5717 | } | |
5718 | } | |
5719 | break; | |
5720 | ||
5721 | case MODE_TARGET: | |
5722 | default: | |
5723 | break; | |
5724 | } | |
5725 | if (del) | |
5726 | qla2x00_free_fcport(del); | |
5727 | ||
2d70c103 NB |
5728 | return fcport; |
5729 | } | |
5730 | ||
5731 | /* Must be called under tgt_mutex */ | |
5d964837 | 5732 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha, |
2d70c103 NB |
5733 | uint8_t *s_id) |
5734 | { | |
5d964837 | 5735 | struct fc_port *sess = NULL; |
2d70c103 NB |
5736 | fc_port_t *fcport = NULL; |
5737 | int rc, global_resets; | |
5738 | uint16_t loop_id = 0; | |
5739 | ||
726b8548 QT |
5740 | if ((s_id[0] == 0xFF) && (s_id[1] == 0xFC)) { |
5741 | /* | |
5742 | * This is Domain Controller, so it should be | |
5743 | * OK to drop SCSI commands from it. | |
5744 | */ | |
5745 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042, | |
5746 | "Unable to find initiator with S_ID %x:%x:%x", | |
5747 | s_id[0], s_id[1], s_id[2]); | |
5748 | return NULL; | |
5749 | } | |
5750 | ||
71cdc079 AP |
5751 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
5752 | ||
2d70c103 | 5753 | retry: |
0e8cd71c SK |
5754 | global_resets = |
5755 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); | |
2d70c103 NB |
5756 | |
5757 | rc = qla24xx_get_loop_id(vha, s_id, &loop_id); | |
5758 | if (rc != 0) { | |
71cdc079 AP |
5759 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
5760 | ||
726b8548 QT |
5761 | ql_log(ql_log_info, vha, 0xf071, |
5762 | "qla_target(%d): Unable to find " | |
5763 | "initiator with S_ID %x:%x:%x", | |
5764 | vha->vp_idx, s_id[0], s_id[1], | |
5765 | s_id[2]); | |
71cdc079 AP |
5766 | |
5767 | if (rc == -ENOENT) { | |
5768 | qlt_port_logo_t logo; | |
5769 | sid_to_portid(s_id, &logo.id); | |
5770 | logo.cmd_count = 1; | |
5771 | qlt_send_first_logo(vha, &logo); | |
5772 | } | |
5773 | ||
2d70c103 NB |
5774 | return NULL; |
5775 | } | |
5776 | ||
5777 | fcport = qlt_get_port_database(vha, loop_id); | |
71cdc079 AP |
5778 | if (!fcport) { |
5779 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
2d70c103 | 5780 | return NULL; |
71cdc079 | 5781 | } |
2d70c103 NB |
5782 | |
5783 | if (global_resets != | |
0e8cd71c | 5784 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) { |
2d70c103 NB |
5785 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043, |
5786 | "qla_target(%d): global reset during session discovery " | |
5787 | "(counter was %d, new %d), retrying", vha->vp_idx, | |
5788 | global_resets, | |
0e8cd71c SK |
5789 | atomic_read(&vha->vha_tgt. |
5790 | qla_tgt->tgt_global_resets_count)); | |
2d70c103 NB |
5791 | goto retry; |
5792 | } | |
5793 | ||
5794 | sess = qlt_create_sess(vha, fcport, true); | |
5795 | ||
71cdc079 AP |
5796 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
5797 | ||
2d70c103 NB |
5798 | return sess; |
5799 | } | |
5800 | ||
5801 | static void qlt_abort_work(struct qla_tgt *tgt, | |
5802 | struct qla_tgt_sess_work_param *prm) | |
5803 | { | |
5804 | struct scsi_qla_host *vha = tgt->vha; | |
5805 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5806 | struct fc_port *sess = NULL; |
7560151b | 5807 | unsigned long flags = 0, flags2 = 0; |
2d70c103 NB |
5808 | uint32_t be_s_id; |
5809 | uint8_t s_id[3]; | |
5810 | int rc; | |
5811 | ||
7560151b | 5812 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 NB |
5813 | |
5814 | if (tgt->tgt_stop) | |
7560151b | 5815 | goto out_term2; |
2d70c103 NB |
5816 | |
5817 | s_id[0] = prm->abts.fcp_hdr_le.s_id[2]; | |
5818 | s_id[1] = prm->abts.fcp_hdr_le.s_id[1]; | |
5819 | s_id[2] = prm->abts.fcp_hdr_le.s_id[0]; | |
5820 | ||
5821 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, | |
5822 | (unsigned char *)&be_s_id); | |
5823 | if (!sess) { | |
7560151b | 5824 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); |
2d70c103 | 5825 | |
2d70c103 NB |
5826 | sess = qlt_make_local_sess(vha, s_id); |
5827 | /* sess has got an extra creation ref */ | |
2d70c103 | 5828 | |
7560151b | 5829 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 | 5830 | if (!sess) |
7560151b | 5831 | goto out_term2; |
2d70c103 | 5832 | } else { |
726b8548 | 5833 | if (sess->deleted) { |
e52a8b45 | 5834 | sess = NULL; |
7560151b | 5835 | goto out_term2; |
e52a8b45 AP |
5836 | } |
5837 | ||
726b8548 QT |
5838 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
5839 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xffff, | |
5840 | "%s: kref_get fail %8phC \n", | |
5841 | __func__, sess->port_name); | |
5842 | sess = NULL; | |
5843 | goto out_term2; | |
5844 | } | |
2d70c103 NB |
5845 | } |
5846 | ||
2d70c103 | 5847 | rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess); |
f159b3c7 QT |
5848 | ha->tgt.tgt_ops->put_sess(sess); |
5849 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
5850 | ||
2d70c103 NB |
5851 | if (rc != 0) |
5852 | goto out_term; | |
2d70c103 NB |
5853 | return; |
5854 | ||
7560151b | 5855 | out_term2: |
f159b3c7 QT |
5856 | if (sess) |
5857 | ha->tgt.tgt_ops->put_sess(sess); | |
5858 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
7560151b | 5859 | |
2d70c103 | 5860 | out_term: |
f159b3c7 | 5861 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2d70c103 | 5862 | qlt_24xx_send_abts_resp(vha, &prm->abts, FCP_TMF_REJECTED, false); |
7560151b | 5863 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2d70c103 NB |
5864 | } |
5865 | ||
5866 | static void qlt_tmr_work(struct qla_tgt *tgt, | |
5867 | struct qla_tgt_sess_work_param *prm) | |
5868 | { | |
5869 | struct atio_from_isp *a = &prm->tm_iocb2; | |
5870 | struct scsi_qla_host *vha = tgt->vha; | |
5871 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5872 | struct fc_port *sess = NULL; |
2d70c103 NB |
5873 | unsigned long flags; |
5874 | uint8_t *s_id = NULL; /* to hide compiler warnings */ | |
5875 | int rc; | |
5876 | uint32_t lun, unpacked_lun; | |
52c82823 | 5877 | int fn; |
2d70c103 NB |
5878 | void *iocb; |
5879 | ||
7560151b | 5880 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
5881 | |
5882 | if (tgt->tgt_stop) | |
f159b3c7 | 5883 | goto out_term2; |
2d70c103 NB |
5884 | |
5885 | s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id; | |
5886 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); | |
5887 | if (!sess) { | |
7560151b | 5888 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 5889 | |
2d70c103 NB |
5890 | sess = qlt_make_local_sess(vha, s_id); |
5891 | /* sess has got an extra creation ref */ | |
2d70c103 | 5892 | |
7560151b | 5893 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 5894 | if (!sess) |
f159b3c7 | 5895 | goto out_term2; |
2d70c103 | 5896 | } else { |
726b8548 | 5897 | if (sess->deleted) { |
e52a8b45 | 5898 | sess = NULL; |
f159b3c7 | 5899 | goto out_term2; |
e52a8b45 AP |
5900 | } |
5901 | ||
726b8548 QT |
5902 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
5903 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xffff, | |
5904 | "%s: kref_get fail %8phC\n", | |
5905 | __func__, sess->port_name); | |
5906 | sess = NULL; | |
f159b3c7 | 5907 | goto out_term2; |
726b8548 | 5908 | } |
2d70c103 NB |
5909 | } |
5910 | ||
5911 | iocb = a; | |
5912 | lun = a->u.isp24.fcp_cmnd.lun; | |
2d70c103 NB |
5913 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
5914 | unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun); | |
5915 | ||
5916 | rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); | |
5d964837 | 5917 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 5918 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
f159b3c7 QT |
5919 | |
5920 | if (rc != 0) | |
5921 | goto out_term; | |
2d70c103 NB |
5922 | return; |
5923 | ||
f159b3c7 QT |
5924 | out_term2: |
5925 | if (sess) | |
5926 | ha->tgt.tgt_ops->put_sess(sess); | |
5927 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 | 5928 | out_term: |
a07100e0 | 5929 | qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1, 0); |
2d70c103 NB |
5930 | } |
5931 | ||
5932 | static void qlt_sess_work_fn(struct work_struct *work) | |
5933 | { | |
5934 | struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work); | |
5935 | struct scsi_qla_host *vha = tgt->vha; | |
5936 | unsigned long flags; | |
5937 | ||
5938 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt); | |
5939 | ||
5940 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
5941 | while (!list_empty(&tgt->sess_works_list)) { | |
5942 | struct qla_tgt_sess_work_param *prm = list_entry( | |
5943 | tgt->sess_works_list.next, typeof(*prm), | |
5944 | sess_works_list_entry); | |
5945 | ||
5946 | /* | |
5947 | * This work can be scheduled on several CPUs at time, so we | |
5948 | * must delete the entry to eliminate double processing | |
5949 | */ | |
5950 | list_del(&prm->sess_works_list_entry); | |
5951 | ||
5952 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
5953 | ||
5954 | switch (prm->type) { | |
5955 | case QLA_TGT_SESS_WORK_ABORT: | |
5956 | qlt_abort_work(tgt, prm); | |
5957 | break; | |
5958 | case QLA_TGT_SESS_WORK_TM: | |
5959 | qlt_tmr_work(tgt, prm); | |
5960 | break; | |
5961 | default: | |
5962 | BUG_ON(1); | |
5963 | break; | |
5964 | } | |
5965 | ||
5966 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
5967 | ||
5968 | kfree(prm); | |
5969 | } | |
5970 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
5971 | } | |
5972 | ||
5973 | /* Must be called under tgt_host_action_mutex */ | |
5974 | int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) | |
5975 | { | |
5976 | struct qla_tgt *tgt; | |
5977 | ||
5978 | if (!QLA_TGT_MODE_ENABLED()) | |
5979 | return 0; | |
5980 | ||
33c36c0a AE |
5981 | if (!IS_TGT_MODE_CAPABLE(ha)) { |
5982 | ql_log(ql_log_warn, base_vha, 0xe070, | |
5983 | "This adapter does not support target mode.\n"); | |
5984 | return 0; | |
5985 | } | |
5986 | ||
2d70c103 | 5987 | ql_dbg(ql_dbg_tgt, base_vha, 0xe03b, |
0e8cd71c | 5988 | "Registering target for host %ld(%p).\n", base_vha->host_no, ha); |
2d70c103 | 5989 | |
0e8cd71c | 5990 | BUG_ON(base_vha->vha_tgt.qla_tgt != NULL); |
2d70c103 NB |
5991 | |
5992 | tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL); | |
5993 | if (!tgt) { | |
5994 | ql_dbg(ql_dbg_tgt, base_vha, 0xe066, | |
5995 | "Unable to allocate struct qla_tgt\n"); | |
5996 | return -ENOMEM; | |
5997 | } | |
5998 | ||
5999 | if (!(base_vha->host->hostt->supported_mode & MODE_TARGET)) | |
6000 | base_vha->host->hostt->supported_mode |= MODE_TARGET; | |
6001 | ||
6002 | tgt->ha = ha; | |
6003 | tgt->vha = base_vha; | |
6004 | init_waitqueue_head(&tgt->waitQ); | |
2d70c103 | 6005 | INIT_LIST_HEAD(&tgt->del_sess_list); |
2d70c103 NB |
6006 | spin_lock_init(&tgt->sess_work_lock); |
6007 | INIT_WORK(&tgt->sess_work, qlt_sess_work_fn); | |
6008 | INIT_LIST_HEAD(&tgt->sess_works_list); | |
2d70c103 NB |
6009 | atomic_set(&tgt->tgt_global_resets_count, 0); |
6010 | ||
0e8cd71c | 6011 | base_vha->vha_tgt.qla_tgt = tgt; |
2d70c103 NB |
6012 | |
6013 | ql_dbg(ql_dbg_tgt, base_vha, 0xe067, | |
6014 | "qla_target(%d): using 64 Bit PCI addressing", | |
6015 | base_vha->vp_idx); | |
6016 | tgt->tgt_enable_64bit_addr = 1; | |
6017 | /* 3 is reserved */ | |
6018 | tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3); | |
6019 | tgt->datasegs_per_cmd = QLA_TGT_DATASEGS_PER_CMD_24XX; | |
6020 | tgt->datasegs_per_cont = QLA_TGT_DATASEGS_PER_CONT_24XX; | |
6021 | ||
6022 | mutex_lock(&qla_tgt_mutex); | |
6023 | list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist); | |
6024 | mutex_unlock(&qla_tgt_mutex); | |
6025 | ||
f1443eeb QT |
6026 | if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target) |
6027 | ha->tgt.tgt_ops->add_target(base_vha); | |
6028 | ||
2d70c103 NB |
6029 | return 0; |
6030 | } | |
6031 | ||
6032 | /* Must be called under tgt_host_action_mutex */ | |
6033 | int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha) | |
6034 | { | |
0e8cd71c | 6035 | if (!vha->vha_tgt.qla_tgt) |
2d70c103 NB |
6036 | return 0; |
6037 | ||
ddb95145 NB |
6038 | if (vha->fc_vport) { |
6039 | qlt_release(vha->vha_tgt.qla_tgt); | |
6040 | return 0; | |
6041 | } | |
33e79977 QT |
6042 | |
6043 | /* free left over qfull cmds */ | |
6044 | qlt_init_term_exchange(vha); | |
6045 | ||
2d70c103 | 6046 | mutex_lock(&qla_tgt_mutex); |
0e8cd71c | 6047 | list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry); |
2d70c103 NB |
6048 | mutex_unlock(&qla_tgt_mutex); |
6049 | ||
6050 | ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)", | |
6051 | vha->host_no, ha); | |
0e8cd71c | 6052 | qlt_release(vha->vha_tgt.qla_tgt); |
2d70c103 NB |
6053 | |
6054 | return 0; | |
6055 | } | |
6056 | ||
482c9dc7 QT |
6057 | void qlt_remove_target_resources(struct qla_hw_data *ha) |
6058 | { | |
6059 | struct scsi_qla_host *node; | |
6060 | u32 key = 0; | |
6061 | ||
6062 | btree_for_each_safe32(&ha->tgt.host_map, key, node) | |
6063 | btree_remove32(&ha->tgt.host_map, key); | |
6064 | ||
6065 | btree_destroy32(&ha->tgt.host_map); | |
6066 | } | |
6067 | ||
2d70c103 NB |
6068 | static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn, |
6069 | unsigned char *b) | |
6070 | { | |
6071 | int i; | |
6072 | ||
6073 | pr_debug("qla2xxx HW vha->node_name: "); | |
6074 | for (i = 0; i < WWN_SIZE; i++) | |
6075 | pr_debug("%02x ", vha->node_name[i]); | |
6076 | pr_debug("\n"); | |
6077 | pr_debug("qla2xxx HW vha->port_name: "); | |
6078 | for (i = 0; i < WWN_SIZE; i++) | |
6079 | pr_debug("%02x ", vha->port_name[i]); | |
6080 | pr_debug("\n"); | |
6081 | ||
6082 | pr_debug("qla2xxx passed configfs WWPN: "); | |
6083 | put_unaligned_be64(wwpn, b); | |
6084 | for (i = 0; i < WWN_SIZE; i++) | |
6085 | pr_debug("%02x ", b[i]); | |
6086 | pr_debug("\n"); | |
6087 | } | |
6088 | ||
6089 | /** | |
6090 | * qla_tgt_lport_register - register lport with external module | |
6091 | * | |
6092 | * @qla_tgt_ops: Pointer for tcm_qla2xxx qla_tgt_ops | |
6093 | * @wwpn: Passwd FC target WWPN | |
6094 | * @callback: lport initialization callback for tcm_qla2xxx code | |
6095 | * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data | |
6096 | */ | |
49a47f2c NB |
6097 | int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn, |
6098 | u64 npiv_wwpn, u64 npiv_wwnn, | |
6099 | int (*callback)(struct scsi_qla_host *, void *, u64, u64)) | |
2d70c103 NB |
6100 | { |
6101 | struct qla_tgt *tgt; | |
6102 | struct scsi_qla_host *vha; | |
6103 | struct qla_hw_data *ha; | |
6104 | struct Scsi_Host *host; | |
6105 | unsigned long flags; | |
6106 | int rc; | |
6107 | u8 b[WWN_SIZE]; | |
6108 | ||
6109 | mutex_lock(&qla_tgt_mutex); | |
6110 | list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) { | |
6111 | vha = tgt->vha; | |
6112 | ha = vha->hw; | |
6113 | ||
6114 | host = vha->host; | |
6115 | if (!host) | |
6116 | continue; | |
6117 | ||
2d70c103 NB |
6118 | if (!(host->hostt->supported_mode & MODE_TARGET)) |
6119 | continue; | |
6120 | ||
6121 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
49a47f2c | 6122 | if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) { |
2d70c103 NB |
6123 | pr_debug("MODE_TARGET already active on qla2xxx(%d)\n", |
6124 | host->host_no); | |
6125 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6126 | continue; | |
6127 | } | |
ddb95145 NB |
6128 | if (tgt->tgt_stop) { |
6129 | pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n", | |
6130 | host->host_no); | |
6131 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6132 | continue; | |
6133 | } | |
2d70c103 NB |
6134 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
6135 | ||
6136 | if (!scsi_host_get(host)) { | |
6137 | ql_dbg(ql_dbg_tgt, vha, 0xe068, | |
6138 | "Unable to scsi_host_get() for" | |
6139 | " qla2xxx scsi_host\n"); | |
6140 | continue; | |
6141 | } | |
49a47f2c | 6142 | qlt_lport_dump(vha, phys_wwpn, b); |
2d70c103 NB |
6143 | |
6144 | if (memcmp(vha->port_name, b, WWN_SIZE)) { | |
6145 | scsi_host_put(host); | |
6146 | continue; | |
6147 | } | |
49a47f2c NB |
6148 | rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn); |
6149 | if (rc != 0) | |
6150 | scsi_host_put(host); | |
6151 | ||
ddb95145 | 6152 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 NB |
6153 | return rc; |
6154 | } | |
6155 | mutex_unlock(&qla_tgt_mutex); | |
6156 | ||
6157 | return -ENODEV; | |
6158 | } | |
6159 | EXPORT_SYMBOL(qlt_lport_register); | |
6160 | ||
6161 | /** | |
6162 | * qla_tgt_lport_deregister - Degister lport | |
6163 | * | |
6164 | * @vha: Registered scsi_qla_host pointer | |
6165 | */ | |
6166 | void qlt_lport_deregister(struct scsi_qla_host *vha) | |
6167 | { | |
6168 | struct qla_hw_data *ha = vha->hw; | |
6169 | struct Scsi_Host *sh = vha->host; | |
6170 | /* | |
6171 | * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data | |
6172 | */ | |
0e8cd71c | 6173 | vha->vha_tgt.target_lport_ptr = NULL; |
2d70c103 NB |
6174 | ha->tgt.tgt_ops = NULL; |
6175 | /* | |
6176 | * Release the Scsi_Host reference for the underlying qla2xxx host | |
6177 | */ | |
6178 | scsi_host_put(sh); | |
6179 | } | |
6180 | EXPORT_SYMBOL(qlt_lport_deregister); | |
6181 | ||
6182 | /* Must be called under HW lock */ | |
55a9066f | 6183 | static void qlt_set_mode(struct scsi_qla_host *vha) |
2d70c103 | 6184 | { |
2d70c103 NB |
6185 | switch (ql2x_ini_mode) { |
6186 | case QLA2XXX_INI_MODE_DISABLED: | |
6187 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6188 | vha->host->active_mode = MODE_TARGET; | |
6189 | break; | |
6190 | case QLA2XXX_INI_MODE_ENABLED: | |
ead03855 QT |
6191 | vha->host->active_mode = MODE_UNKNOWN; |
6192 | break; | |
6193 | case QLA2XXX_INI_MODE_DUAL: | |
6194 | vha->host->active_mode = MODE_DUAL; | |
2d70c103 NB |
6195 | break; |
6196 | default: | |
6197 | break; | |
6198 | } | |
2d70c103 NB |
6199 | } |
6200 | ||
6201 | /* Must be called under HW lock */ | |
55a9066f | 6202 | static void qlt_clear_mode(struct scsi_qla_host *vha) |
2d70c103 | 6203 | { |
2d70c103 NB |
6204 | switch (ql2x_ini_mode) { |
6205 | case QLA2XXX_INI_MODE_DISABLED: | |
6206 | vha->host->active_mode = MODE_UNKNOWN; | |
6207 | break; | |
6208 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6209 | vha->host->active_mode = MODE_INITIATOR; | |
6210 | break; | |
6211 | case QLA2XXX_INI_MODE_ENABLED: | |
ead03855 QT |
6212 | case QLA2XXX_INI_MODE_DUAL: |
6213 | vha->host->active_mode = MODE_INITIATOR; | |
2d70c103 NB |
6214 | break; |
6215 | default: | |
6216 | break; | |
6217 | } | |
2d70c103 NB |
6218 | } |
6219 | ||
6220 | /* | |
6221 | * qla_tgt_enable_vha - NO LOCK HELD | |
6222 | * | |
6223 | * host_reset, bring up w/ Target Mode Enabled | |
6224 | */ | |
6225 | void | |
6226 | qlt_enable_vha(struct scsi_qla_host *vha) | |
6227 | { | |
6228 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6229 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 6230 | unsigned long flags; |
0e8cd71c | 6231 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
cdb898c5 | 6232 | int rspq_ent = QLA83XX_RSPQ_MSIX_ENTRY_NUMBER; |
2d70c103 NB |
6233 | |
6234 | if (!tgt) { | |
6235 | ql_dbg(ql_dbg_tgt, vha, 0xe069, | |
6236 | "Unable to locate qla_tgt pointer from" | |
6237 | " struct qla_hw_data\n"); | |
6238 | dump_stack(); | |
6239 | return; | |
6240 | } | |
6241 | ||
6242 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6243 | tgt->tgt_stopped = 0; | |
6244 | qlt_set_mode(vha); | |
6245 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6246 | ||
0e8cd71c SK |
6247 | if (vha->vp_idx) { |
6248 | qla24xx_disable_vp(vha); | |
6249 | qla24xx_enable_vp(vha); | |
6250 | } else { | |
cdb898c5 QT |
6251 | if (ha->msix_entries) { |
6252 | ql_dbg(ql_dbg_tgt, vha, 0xffff, | |
6253 | "%s: host%ld : vector %d cpu %d\n", | |
6254 | __func__, vha->host_no, | |
6255 | ha->msix_entries[rspq_ent].vector, | |
6256 | ha->msix_entries[rspq_ent].cpuid); | |
6257 | ||
6258 | ha->tgt.rspq_vector_cpuid = | |
6259 | ha->msix_entries[rspq_ent].cpuid; | |
6260 | } | |
6261 | ||
0e8cd71c SK |
6262 | set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); |
6263 | qla2xxx_wake_dpc(base_vha); | |
6264 | qla2x00_wait_for_hba_online(base_vha); | |
6265 | } | |
2d70c103 NB |
6266 | } |
6267 | EXPORT_SYMBOL(qlt_enable_vha); | |
6268 | ||
6269 | /* | |
6270 | * qla_tgt_disable_vha - NO LOCK HELD | |
6271 | * | |
6272 | * Disable Target Mode and reset the adapter | |
6273 | */ | |
55a9066f | 6274 | static void qlt_disable_vha(struct scsi_qla_host *vha) |
2d70c103 NB |
6275 | { |
6276 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6277 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
6278 | unsigned long flags; |
6279 | ||
6280 | if (!tgt) { | |
6281 | ql_dbg(ql_dbg_tgt, vha, 0xe06a, | |
6282 | "Unable to locate qla_tgt pointer from" | |
6283 | " struct qla_hw_data\n"); | |
6284 | dump_stack(); | |
6285 | return; | |
6286 | } | |
6287 | ||
6288 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6289 | qlt_clear_mode(vha); | |
6290 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6291 | ||
6292 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
6293 | qla2xxx_wake_dpc(vha); | |
6294 | qla2x00_wait_for_hba_online(vha); | |
6295 | } | |
6296 | ||
6297 | /* | |
6298 | * Called from qla_init.c:qla24xx_vport_create() contex to setup | |
6299 | * the target mode specific struct scsi_qla_host and struct qla_hw_data | |
6300 | * members. | |
6301 | */ | |
6302 | void | |
6303 | qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha) | |
6304 | { | |
0e8cd71c SK |
6305 | vha->vha_tgt.qla_tgt = NULL; |
6306 | ||
6307 | mutex_init(&vha->vha_tgt.tgt_mutex); | |
6308 | mutex_init(&vha->vha_tgt.tgt_host_action_mutex); | |
2d70c103 NB |
6309 | |
6310 | qlt_clear_mode(vha); | |
6311 | ||
6312 | /* | |
6313 | * NOTE: Currently the value is kept the same for <24xx and | |
6314 | * >=24xx ISPs. If it is necessary to change it, | |
6315 | * the check should be added for specific ISPs, | |
6316 | * assigning the value appropriately. | |
6317 | */ | |
6318 | ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX; | |
0e8cd71c SK |
6319 | |
6320 | qlt_add_target(ha, vha); | |
2d70c103 NB |
6321 | } |
6322 | ||
6323 | void | |
6324 | qlt_rff_id(struct scsi_qla_host *vha, struct ct_sns_req *ct_req) | |
6325 | { | |
6326 | /* | |
6327 | * FC-4 Feature bit 0 indicates target functionality to the name server. | |
6328 | */ | |
6329 | if (qla_tgt_mode_enabled(vha)) { | |
726b8548 | 6330 | ct_req->req.rff_id.fc4_feature = BIT_0; |
2d70c103 NB |
6331 | } else if (qla_ini_mode_enabled(vha)) { |
6332 | ct_req->req.rff_id.fc4_feature = BIT_1; | |
726b8548 QT |
6333 | } else if (qla_dual_mode_enabled(vha)) |
6334 | ct_req->req.rff_id.fc4_feature = BIT_0 | BIT_1; | |
2d70c103 NB |
6335 | } |
6336 | ||
6337 | /* | |
6338 | * qlt_init_atio_q_entries() - Initializes ATIO queue entries. | |
6339 | * @ha: HA context | |
6340 | * | |
6341 | * Beginning of ATIO ring has initialization control block already built | |
6342 | * by nvram config routine. | |
6343 | * | |
6344 | * Returns 0 on success. | |
6345 | */ | |
6346 | void | |
6347 | qlt_init_atio_q_entries(struct scsi_qla_host *vha) | |
6348 | { | |
6349 | struct qla_hw_data *ha = vha->hw; | |
6350 | uint16_t cnt; | |
6351 | struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring; | |
6352 | ||
ead03855 | 6353 | if (qla_ini_mode_enabled(vha)) |
2d70c103 NB |
6354 | return; |
6355 | ||
6356 | for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) { | |
6357 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6358 | pkt++; | |
6359 | } | |
6360 | ||
6361 | } | |
6362 | ||
6363 | /* | |
6364 | * qlt_24xx_process_atio_queue() - Process ATIO queue entries. | |
6365 | * @ha: SCSI driver HA context | |
6366 | */ | |
6367 | void | |
2f424b9b | 6368 | qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked) |
2d70c103 NB |
6369 | { |
6370 | struct qla_hw_data *ha = vha->hw; | |
2d70c103 NB |
6371 | struct atio_from_isp *pkt; |
6372 | int cnt, i; | |
6373 | ||
ec7193e2 | 6374 | if (!ha->flags.fw_started) |
2d70c103 NB |
6375 | return; |
6376 | ||
5f35509d QT |
6377 | while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) || |
6378 | fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) { | |
2d70c103 NB |
6379 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; |
6380 | cnt = pkt->u.raw.entry_count; | |
6381 | ||
5f35509d QT |
6382 | if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) { |
6383 | /* | |
6384 | * This packet is corrupted. The header + payload | |
6385 | * can not be trusted. There is no point in passing | |
6386 | * it further up. | |
6387 | */ | |
6388 | ql_log(ql_log_warn, vha, 0xffff, | |
6389 | "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n", | |
6390 | pkt->u.isp24.fcp_hdr.s_id, | |
6391 | be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id), | |
6392 | le32_to_cpu(pkt->u.isp24.exchange_addr), pkt); | |
6393 | ||
6394 | adjust_corrupted_atio(pkt); | |
6395 | qlt_send_term_exchange(vha, NULL, pkt, ha_locked, 0); | |
6396 | } else { | |
6397 | qlt_24xx_atio_pkt_all_vps(vha, | |
6398 | (struct atio_from_isp *)pkt, ha_locked); | |
6399 | } | |
2d70c103 NB |
6400 | |
6401 | for (i = 0; i < cnt; i++) { | |
6402 | ha->tgt.atio_ring_index++; | |
6403 | if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) { | |
6404 | ha->tgt.atio_ring_index = 0; | |
6405 | ha->tgt.atio_ring_ptr = ha->tgt.atio_ring; | |
6406 | } else | |
6407 | ha->tgt.atio_ring_ptr++; | |
6408 | ||
6409 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6410 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; | |
6411 | } | |
6412 | wmb(); | |
6413 | } | |
6414 | ||
6415 | /* Adjust ring index */ | |
aa230bc5 | 6416 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index); |
3761f3e8 | 6417 | RD_REG_DWORD_RELAXED(ISP_ATIO_Q_OUT(vha)); |
2d70c103 NB |
6418 | } |
6419 | ||
6420 | void | |
aa230bc5 | 6421 | qlt_24xx_config_rings(struct scsi_qla_host *vha) |
2d70c103 NB |
6422 | { |
6423 | struct qla_hw_data *ha = vha->hw; | |
aa230bc5 AE |
6424 | if (!QLA_TGT_MODE_ENABLED()) |
6425 | return; | |
2d70c103 | 6426 | |
aa230bc5 AE |
6427 | WRT_REG_DWORD(ISP_ATIO_Q_IN(vha), 0); |
6428 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0); | |
6429 | RD_REG_DWORD(ISP_ATIO_Q_OUT(vha)); | |
6430 | ||
6431 | if (IS_ATIO_MSIX_CAPABLE(ha)) { | |
6432 | struct qla_msix_entry *msix = &ha->msix_entries[2]; | |
6433 | struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb; | |
6434 | ||
6435 | icb->msix_atio = cpu_to_le16(msix->entry); | |
6436 | ql_dbg(ql_dbg_init, vha, 0xf072, | |
6437 | "Registering ICB vector 0x%x for atio que.\n", | |
6438 | msix->entry); | |
2d70c103 NB |
6439 | } |
6440 | } | |
6441 | ||
6442 | void | |
6443 | qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) | |
6444 | { | |
6445 | struct qla_hw_data *ha = vha->hw; | |
ead03855 QT |
6446 | u32 tmp; |
6447 | u16 t; | |
2d70c103 | 6448 | |
ead03855 | 6449 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
2d70c103 NB |
6450 | if (!ha->tgt.saved_set) { |
6451 | /* We save only once */ | |
6452 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
6453 | ha->tgt.saved_firmware_options_1 = | |
6454 | nv->firmware_options_1; | |
6455 | ha->tgt.saved_firmware_options_2 = | |
6456 | nv->firmware_options_2; | |
6457 | ha->tgt.saved_firmware_options_3 = | |
6458 | nv->firmware_options_3; | |
6459 | ha->tgt.saved_set = 1; | |
6460 | } | |
6461 | ||
ead03855 QT |
6462 | if (qla_tgt_mode_enabled(vha)) { |
6463 | nv->exchange_count = cpu_to_le16(0xFFFF); | |
6464 | } else { /* dual */ | |
6465 | if (ql_dm_tgt_ex_pct > 100) { | |
6466 | ql_dm_tgt_ex_pct = 50; | |
6467 | } else if (ql_dm_tgt_ex_pct == 100) { | |
6468 | /* leave some for FW */ | |
6469 | ql_dm_tgt_ex_pct = 95; | |
6470 | } | |
6471 | ||
6472 | tmp = ha->orig_fw_xcb_count * ql_dm_tgt_ex_pct; | |
6473 | tmp = tmp/100; | |
6474 | if (tmp > 0xffff) | |
6475 | tmp = 0xffff; | |
6476 | ||
6477 | t = tmp & 0xffff; | |
6478 | nv->exchange_count = cpu_to_le16(t); | |
6479 | } | |
2d70c103 NB |
6480 | |
6481 | /* Enable target mode */ | |
ad950360 | 6482 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
2d70c103 NB |
6483 | |
6484 | /* Disable ini mode, if requested */ | |
726b8548 | 6485 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 6486 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
2d70c103 NB |
6487 | |
6488 | /* Disable Full Login after LIP */ | |
ad950360 | 6489 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
2d70c103 | 6490 | /* Enable initial LIP */ |
ad950360 | 6491 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
d154f350 AE |
6492 | if (ql2xtgt_tape_enable) |
6493 | /* Enable FC Tape support */ | |
6494 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
6495 | else | |
6496 | /* Disable FC Tape support */ | |
6497 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
6498 | ||
2d70c103 | 6499 | /* Disable Full Login after LIP */ |
ad950360 | 6500 | nv->host_p &= cpu_to_le32(~BIT_10); |
c0f64627 HM |
6501 | |
6502 | /* | |
6503 | * clear BIT 15 explicitly as we have seen at least | |
6504 | * a couple of instances where this was set and this | |
6505 | * was causing the firmware to not be initialized. | |
6506 | */ | |
6507 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
2d70c103 | 6508 | /* Enable target PRLI control */ |
ad950360 | 6509 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
2d70c103 NB |
6510 | } else { |
6511 | if (ha->tgt.saved_set) { | |
6512 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
6513 | nv->firmware_options_1 = | |
6514 | ha->tgt.saved_firmware_options_1; | |
6515 | nv->firmware_options_2 = | |
6516 | ha->tgt.saved_firmware_options_2; | |
6517 | nv->firmware_options_3 = | |
6518 | ha->tgt.saved_firmware_options_3; | |
6519 | } | |
6520 | return; | |
6521 | } | |
6522 | ||
2d70c103 NB |
6523 | if (ha->tgt.enable_class_2) { |
6524 | if (vha->flags.init_done) | |
6525 | fc_host_supported_classes(vha->host) = | |
6526 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
6527 | ||
ad950360 | 6528 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
2d70c103 NB |
6529 | } else { |
6530 | if (vha->flags.init_done) | |
6531 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
6532 | ||
ad950360 | 6533 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
2d70c103 NB |
6534 | } |
6535 | } | |
6536 | ||
6537 | void | |
6538 | qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
6539 | struct init_cb_24xx *icb) | |
6540 | { | |
6541 | struct qla_hw_data *ha = vha->hw; | |
6542 | ||
481ce733 QT |
6543 | if (!QLA_TGT_MODE_ENABLED()) |
6544 | return; | |
6545 | ||
2d70c103 NB |
6546 | if (ha->tgt.node_name_set) { |
6547 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 6548 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
2d70c103 | 6549 | } |
481ce733 QT |
6550 | |
6551 | /* disable ZIO at start time. */ | |
6552 | if (!vha->flags.init_done) { | |
6553 | uint32_t tmp; | |
6554 | tmp = le32_to_cpu(icb->firmware_options_2); | |
6555 | tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
6556 | icb->firmware_options_2 = cpu_to_le32(tmp); | |
6557 | } | |
2d70c103 NB |
6558 | } |
6559 | ||
aa230bc5 AE |
6560 | void |
6561 | qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) | |
6562 | { | |
6563 | struct qla_hw_data *ha = vha->hw; | |
ead03855 QT |
6564 | u32 tmp; |
6565 | u16 t; | |
aa230bc5 AE |
6566 | |
6567 | if (!QLA_TGT_MODE_ENABLED()) | |
6568 | return; | |
6569 | ||
ead03855 | 6570 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
aa230bc5 AE |
6571 | if (!ha->tgt.saved_set) { |
6572 | /* We save only once */ | |
6573 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
6574 | ha->tgt.saved_firmware_options_1 = | |
6575 | nv->firmware_options_1; | |
6576 | ha->tgt.saved_firmware_options_2 = | |
6577 | nv->firmware_options_2; | |
6578 | ha->tgt.saved_firmware_options_3 = | |
6579 | nv->firmware_options_3; | |
6580 | ha->tgt.saved_set = 1; | |
6581 | } | |
6582 | ||
ead03855 QT |
6583 | if (qla_tgt_mode_enabled(vha)) { |
6584 | nv->exchange_count = cpu_to_le16(0xFFFF); | |
6585 | } else { /* dual */ | |
6586 | if (ql_dm_tgt_ex_pct > 100) { | |
6587 | ql_dm_tgt_ex_pct = 50; | |
6588 | } else if (ql_dm_tgt_ex_pct == 100) { | |
6589 | /* leave some for FW */ | |
6590 | ql_dm_tgt_ex_pct = 95; | |
6591 | } | |
6592 | ||
6593 | tmp = ha->orig_fw_xcb_count * ql_dm_tgt_ex_pct; | |
6594 | tmp = tmp/100; | |
6595 | if (tmp > 0xffff) | |
6596 | tmp = 0xffff; | |
6597 | t = tmp & 0xffff; | |
6598 | nv->exchange_count = cpu_to_le16(t); | |
6599 | } | |
aa230bc5 AE |
6600 | |
6601 | /* Enable target mode */ | |
ad950360 | 6602 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
aa230bc5 AE |
6603 | |
6604 | /* Disable ini mode, if requested */ | |
726b8548 | 6605 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 6606 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
aa230bc5 | 6607 | /* Disable Full Login after LIP */ |
ad950360 | 6608 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
aa230bc5 | 6609 | /* Enable initial LIP */ |
ad950360 | 6610 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
c0f64627 HM |
6611 | /* |
6612 | * clear BIT 15 explicitly as we have seen at | |
6613 | * least a couple of instances where this was set | |
6614 | * and this was causing the firmware to not be | |
6615 | * initialized. | |
6616 | */ | |
6617 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
d154f350 AE |
6618 | if (ql2xtgt_tape_enable) |
6619 | /* Enable FC tape support */ | |
6620 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
6621 | else | |
6622 | /* Disable FC tape support */ | |
6623 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
6624 | ||
aa230bc5 | 6625 | /* Disable Full Login after LIP */ |
ad950360 | 6626 | nv->host_p &= cpu_to_le32(~BIT_10); |
aa230bc5 | 6627 | /* Enable target PRLI control */ |
ad950360 | 6628 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
aa230bc5 AE |
6629 | } else { |
6630 | if (ha->tgt.saved_set) { | |
6631 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
6632 | nv->firmware_options_1 = | |
6633 | ha->tgt.saved_firmware_options_1; | |
6634 | nv->firmware_options_2 = | |
6635 | ha->tgt.saved_firmware_options_2; | |
6636 | nv->firmware_options_3 = | |
6637 | ha->tgt.saved_firmware_options_3; | |
6638 | } | |
6639 | return; | |
6640 | } | |
6641 | ||
aa230bc5 AE |
6642 | if (ha->tgt.enable_class_2) { |
6643 | if (vha->flags.init_done) | |
6644 | fc_host_supported_classes(vha->host) = | |
6645 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
6646 | ||
ad950360 | 6647 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
aa230bc5 AE |
6648 | } else { |
6649 | if (vha->flags.init_done) | |
6650 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
6651 | ||
ad950360 | 6652 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
aa230bc5 AE |
6653 | } |
6654 | } | |
6655 | ||
6656 | void | |
6657 | qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
6658 | struct init_cb_81xx *icb) | |
6659 | { | |
6660 | struct qla_hw_data *ha = vha->hw; | |
6661 | ||
6662 | if (!QLA_TGT_MODE_ENABLED()) | |
6663 | return; | |
6664 | ||
6665 | if (ha->tgt.node_name_set) { | |
6666 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 6667 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
aa230bc5 | 6668 | } |
481ce733 QT |
6669 | |
6670 | /* disable ZIO at start time. */ | |
6671 | if (!vha->flags.init_done) { | |
6672 | uint32_t tmp; | |
6673 | tmp = le32_to_cpu(icb->firmware_options_2); | |
6674 | tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
6675 | icb->firmware_options_2 = cpu_to_le32(tmp); | |
6676 | } | |
6677 | ||
aa230bc5 AE |
6678 | } |
6679 | ||
6680 | void | |
6681 | qlt_83xx_iospace_config(struct qla_hw_data *ha) | |
6682 | { | |
6683 | if (!QLA_TGT_MODE_ENABLED()) | |
6684 | return; | |
6685 | ||
6686 | ha->msix_count += 1; /* For ATIO Q */ | |
6687 | } | |
6688 | ||
2d70c103 NB |
6689 | int |
6690 | qlt_24xx_process_response_error(struct scsi_qla_host *vha, | |
6691 | struct sts_entry_24xx *pkt) | |
6692 | { | |
6693 | switch (pkt->entry_type) { | |
6694 | case ABTS_RECV_24XX: | |
6695 | case ABTS_RESP_24XX: | |
6696 | case CTIO_TYPE7: | |
6697 | case NOTIFY_ACK_TYPE: | |
f83adb61 | 6698 | case CTIO_CRC2: |
2d70c103 NB |
6699 | return 1; |
6700 | default: | |
6701 | return 0; | |
6702 | } | |
6703 | } | |
6704 | ||
6705 | void | |
6706 | qlt_modify_vp_config(struct scsi_qla_host *vha, | |
6707 | struct vp_config_entry_24xx *vpmod) | |
6708 | { | |
ead03855 QT |
6709 | /* enable target mode. Bit5 = 1 => disable */ |
6710 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) | |
2d70c103 | 6711 | vpmod->options_idx1 &= ~BIT_5; |
726b8548 | 6712 | |
ead03855 | 6713 | /* Disable ini mode, if requested. bit4 = 1 => disable */ |
726b8548 | 6714 | if (qla_tgt_mode_enabled(vha)) |
2d70c103 NB |
6715 | vpmod->options_idx1 &= ~BIT_4; |
6716 | } | |
6717 | ||
6718 | void | |
6719 | qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) | |
6720 | { | |
482c9dc7 QT |
6721 | int rc; |
6722 | ||
2d70c103 NB |
6723 | if (!QLA_TGT_MODE_ENABLED()) |
6724 | return; | |
6725 | ||
b20f02e1 | 6726 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { |
aa230bc5 AE |
6727 | ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in; |
6728 | ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out; | |
6729 | } else { | |
6730 | ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in; | |
6731 | ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out; | |
6732 | } | |
6733 | ||
0e8cd71c SK |
6734 | mutex_init(&base_vha->vha_tgt.tgt_mutex); |
6735 | mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex); | |
41dc529a QT |
6736 | |
6737 | INIT_LIST_HEAD(&base_vha->unknown_atio_list); | |
6738 | INIT_DELAYED_WORK(&base_vha->unknown_atio_work, | |
6739 | qlt_unknown_atio_work_fn); | |
6740 | ||
2d70c103 | 6741 | qlt_clear_mode(base_vha); |
482c9dc7 QT |
6742 | |
6743 | rc = btree_init32(&ha->tgt.host_map); | |
6744 | if (rc) | |
6745 | ql_log(ql_log_info, base_vha, 0xffff, | |
6746 | "Unable to initialize ha->host_map btree\n"); | |
6747 | ||
6748 | qlt_update_vp_map(base_vha, SET_VP_IDX); | |
2d70c103 NB |
6749 | } |
6750 | ||
aa230bc5 AE |
6751 | irqreturn_t |
6752 | qla83xx_msix_atio_q(int irq, void *dev_id) | |
6753 | { | |
6754 | struct rsp_que *rsp; | |
6755 | scsi_qla_host_t *vha; | |
6756 | struct qla_hw_data *ha; | |
6757 | unsigned long flags; | |
6758 | ||
6759 | rsp = (struct rsp_que *) dev_id; | |
6760 | ha = rsp->hw; | |
6761 | vha = pci_get_drvdata(ha->pdev); | |
6762 | ||
2f424b9b | 6763 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); |
aa230bc5 | 6764 | |
2f424b9b | 6765 | qlt_24xx_process_atio_queue(vha, 0); |
aa230bc5 | 6766 | |
2f424b9b | 6767 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); |
aa230bc5 AE |
6768 | |
6769 | return IRQ_HANDLED; | |
6770 | } | |
6771 | ||
2f424b9b QT |
6772 | static void |
6773 | qlt_handle_abts_recv_work(struct work_struct *work) | |
6774 | { | |
6775 | struct qla_tgt_sess_op *op = container_of(work, | |
6776 | struct qla_tgt_sess_op, work); | |
6777 | scsi_qla_host_t *vha = op->vha; | |
6778 | struct qla_hw_data *ha = vha->hw; | |
6779 | unsigned long flags; | |
6780 | ||
6781 | if (qla2x00_reset_active(vha) || (op->chip_reset != ha->chip_reset)) | |
6782 | return; | |
6783 | ||
6784 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); | |
6785 | qlt_24xx_process_atio_queue(vha, 0); | |
6786 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); | |
6787 | ||
6788 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6789 | qlt_response_pkt_all_vps(vha, (response_t *)&op->atio); | |
6790 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
ae940f2c QT |
6791 | |
6792 | kfree(op); | |
2f424b9b QT |
6793 | } |
6794 | ||
6795 | void | |
6796 | qlt_handle_abts_recv(struct scsi_qla_host *vha, response_t *pkt) | |
6797 | { | |
6798 | struct qla_tgt_sess_op *op; | |
6799 | ||
6800 | op = kzalloc(sizeof(*op), GFP_ATOMIC); | |
6801 | ||
6802 | if (!op) { | |
6803 | /* do not reach for ATIO queue here. This is best effort err | |
6804 | * recovery at this point. | |
6805 | */ | |
6806 | qlt_response_pkt_all_vps(vha, pkt); | |
6807 | return; | |
6808 | } | |
6809 | ||
6810 | memcpy(&op->atio, pkt, sizeof(*pkt)); | |
6811 | op->vha = vha; | |
6812 | op->chip_reset = vha->hw->chip_reset; | |
6813 | INIT_WORK(&op->work, qlt_handle_abts_recv_work); | |
6814 | queue_work(qla_tgt_wq, &op->work); | |
6815 | return; | |
6816 | } | |
6817 | ||
2d70c103 NB |
6818 | int |
6819 | qlt_mem_alloc(struct qla_hw_data *ha) | |
6820 | { | |
6821 | if (!QLA_TGT_MODE_ENABLED()) | |
6822 | return 0; | |
6823 | ||
6824 | ha->tgt.tgt_vp_map = kzalloc(sizeof(struct qla_tgt_vp_map) * | |
6825 | MAX_MULTI_ID_FABRIC, GFP_KERNEL); | |
6826 | if (!ha->tgt.tgt_vp_map) | |
6827 | return -ENOMEM; | |
6828 | ||
6829 | ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev, | |
6830 | (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp), | |
6831 | &ha->tgt.atio_dma, GFP_KERNEL); | |
6832 | if (!ha->tgt.atio_ring) { | |
6833 | kfree(ha->tgt.tgt_vp_map); | |
6834 | return -ENOMEM; | |
6835 | } | |
6836 | return 0; | |
6837 | } | |
6838 | ||
6839 | void | |
6840 | qlt_mem_free(struct qla_hw_data *ha) | |
6841 | { | |
6842 | if (!QLA_TGT_MODE_ENABLED()) | |
6843 | return; | |
6844 | ||
6845 | if (ha->tgt.atio_ring) { | |
6846 | dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) * | |
6847 | sizeof(struct atio_from_isp), ha->tgt.atio_ring, | |
6848 | ha->tgt.atio_dma); | |
6849 | } | |
6850 | kfree(ha->tgt.tgt_vp_map); | |
6851 | } | |
6852 | ||
6853 | /* vport_slock to be held by the caller */ | |
6854 | void | |
6855 | qlt_update_vp_map(struct scsi_qla_host *vha, int cmd) | |
6856 | { | |
482c9dc7 QT |
6857 | void *slot; |
6858 | u32 key; | |
6859 | int rc; | |
6860 | ||
2d70c103 NB |
6861 | if (!QLA_TGT_MODE_ENABLED()) |
6862 | return; | |
6863 | ||
482c9dc7 QT |
6864 | key = vha->d_id.b24; |
6865 | ||
2d70c103 NB |
6866 | switch (cmd) { |
6867 | case SET_VP_IDX: | |
6868 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha; | |
6869 | break; | |
6870 | case SET_AL_PA: | |
482c9dc7 QT |
6871 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); |
6872 | if (!slot) { | |
6873 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, | |
6874 | "Save vha in host_map %p %06x\n", vha, key); | |
6875 | rc = btree_insert32(&vha->hw->tgt.host_map, | |
6876 | key, vha, GFP_ATOMIC); | |
6877 | if (rc) | |
6878 | ql_log(ql_log_info, vha, 0xffff, | |
6879 | "Unable to insert s_id into host_map: %06x\n", | |
6880 | key); | |
6881 | return; | |
6882 | } | |
6883 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, | |
6884 | "replace existing vha in host_map %p %06x\n", vha, key); | |
6885 | btree_update32(&vha->hw->tgt.host_map, key, vha); | |
2d70c103 NB |
6886 | break; |
6887 | case RESET_VP_IDX: | |
6888 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL; | |
6889 | break; | |
6890 | case RESET_AL_PA: | |
482c9dc7 QT |
6891 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, |
6892 | "clear vha in host_map %p %06x\n", vha, key); | |
6893 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); | |
6894 | if (slot) | |
6895 | btree_remove32(&vha->hw->tgt.host_map, key); | |
6896 | vha->d_id.b24 = 0; | |
2d70c103 NB |
6897 | break; |
6898 | } | |
6899 | } | |
6900 | ||
482c9dc7 QT |
6901 | void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id) |
6902 | { | |
6903 | unsigned long flags; | |
6904 | struct qla_hw_data *ha = vha->hw; | |
6905 | ||
6906 | if (!vha->d_id.b24) { | |
6907 | spin_lock_irqsave(&ha->vport_slock, flags); | |
6908 | vha->d_id = id; | |
6909 | qlt_update_vp_map(vha, SET_AL_PA); | |
6910 | spin_unlock_irqrestore(&ha->vport_slock, flags); | |
6911 | } else if (vha->d_id.b24 != id.b24) { | |
6912 | spin_lock_irqsave(&ha->vport_slock, flags); | |
6913 | qlt_update_vp_map(vha, RESET_AL_PA); | |
6914 | vha->d_id = id; | |
6915 | qlt_update_vp_map(vha, SET_AL_PA); | |
6916 | spin_unlock_irqrestore(&ha->vport_slock, flags); | |
6917 | } | |
6918 | } | |
6919 | ||
2d70c103 NB |
6920 | static int __init qlt_parse_ini_mode(void) |
6921 | { | |
6922 | if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0) | |
6923 | ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE; | |
6924 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0) | |
6925 | ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED; | |
6926 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0) | |
6927 | ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED; | |
ead03855 QT |
6928 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0) |
6929 | ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL; | |
2d70c103 NB |
6930 | else |
6931 | return false; | |
6932 | ||
6933 | return true; | |
6934 | } | |
6935 | ||
6936 | int __init qlt_init(void) | |
6937 | { | |
6938 | int ret; | |
6939 | ||
6940 | if (!qlt_parse_ini_mode()) { | |
6941 | ql_log(ql_log_fatal, NULL, 0xe06b, | |
6942 | "qlt_parse_ini_mode() failed\n"); | |
6943 | return -EINVAL; | |
6944 | } | |
6945 | ||
6946 | if (!QLA_TGT_MODE_ENABLED()) | |
6947 | return 0; | |
6948 | ||
2d70c103 NB |
6949 | qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep", |
6950 | sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct | |
6951 | qla_tgt_mgmt_cmd), 0, NULL); | |
6952 | if (!qla_tgt_mgmt_cmd_cachep) { | |
6953 | ql_log(ql_log_fatal, NULL, 0xe06d, | |
6954 | "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n"); | |
51a07f84 | 6955 | return -ENOMEM; |
2d70c103 NB |
6956 | } |
6957 | ||
b7bd104e | 6958 | qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep", |
5d964837 QT |
6959 | sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t), |
6960 | 0, NULL); | |
b7bd104e AP |
6961 | |
6962 | if (!qla_tgt_plogi_cachep) { | |
6963 | ql_log(ql_log_fatal, NULL, 0xe06d, | |
6964 | "kmem_cache_create for qla_tgt_plogi_cachep failed\n"); | |
6965 | ret = -ENOMEM; | |
6966 | goto out_mgmt_cmd_cachep; | |
6967 | } | |
6968 | ||
2d70c103 NB |
6969 | qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab, |
6970 | mempool_free_slab, qla_tgt_mgmt_cmd_cachep); | |
6971 | if (!qla_tgt_mgmt_cmd_mempool) { | |
6972 | ql_log(ql_log_fatal, NULL, 0xe06e, | |
6973 | "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n"); | |
6974 | ret = -ENOMEM; | |
b7bd104e | 6975 | goto out_plogi_cachep; |
2d70c103 NB |
6976 | } |
6977 | ||
6978 | qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0); | |
6979 | if (!qla_tgt_wq) { | |
6980 | ql_log(ql_log_fatal, NULL, 0xe06f, | |
6981 | "alloc_workqueue for qla_tgt_wq failed\n"); | |
6982 | ret = -ENOMEM; | |
6983 | goto out_cmd_mempool; | |
6984 | } | |
6985 | /* | |
6986 | * Return 1 to signal that initiator-mode is being disabled | |
6987 | */ | |
6988 | return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0; | |
6989 | ||
6990 | out_cmd_mempool: | |
6991 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e AP |
6992 | out_plogi_cachep: |
6993 | kmem_cache_destroy(qla_tgt_plogi_cachep); | |
2d70c103 NB |
6994 | out_mgmt_cmd_cachep: |
6995 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); | |
2d70c103 NB |
6996 | return ret; |
6997 | } | |
6998 | ||
6999 | void qlt_exit(void) | |
7000 | { | |
7001 | if (!QLA_TGT_MODE_ENABLED()) | |
7002 | return; | |
7003 | ||
7004 | destroy_workqueue(qla_tgt_wq); | |
7005 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e | 7006 | kmem_cache_destroy(qla_tgt_plogi_cachep); |
2d70c103 | 7007 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); |
2d70c103 | 7008 | } |