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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 | ||
99e1b683 | 62 | static int ql_dm_tgt_ex_pct = 0; |
ead03855 QT |
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) | |
83548fe2 QT |
203 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf005, |
204 | "Unable to find host %06x\n", key); | |
482c9dc7 QT |
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) { | |
83548fe2 QT |
255 | ql_dbg(ql_dbg_async, vha, 0x502c, |
256 | "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped", | |
257 | vha->vp_idx); | |
41dc529a QT |
258 | goto out_term; |
259 | } | |
260 | ||
261 | u = kzalloc(sizeof(*u), GFP_ATOMIC); | |
83548fe2 | 262 | if (u == NULL) |
41dc529a | 263 | goto out_term; |
41dc529a QT |
264 | |
265 | u->vha = vha; | |
266 | memcpy(&u->atio, atio, sizeof(*atio)); | |
267 | INIT_LIST_HEAD(&u->cmd_list); | |
268 | ||
269 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
270 | list_add_tail(&u->cmd_list, &vha->unknown_atio_list); | |
271 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
272 | ||
273 | schedule_delayed_work(&vha->unknown_atio_work, 1); | |
274 | ||
275 | out: | |
276 | return; | |
277 | ||
278 | out_term: | |
279 | qlt_send_term_exchange(vha, NULL, atio, ha_locked, 0); | |
280 | goto out; | |
281 | } | |
282 | ||
283 | static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha, | |
284 | uint8_t ha_locked) | |
285 | { | |
286 | struct qla_tgt_sess_op *u, *t; | |
287 | scsi_qla_host_t *host; | |
288 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
289 | unsigned long flags; | |
290 | uint8_t queued = 0; | |
291 | ||
292 | list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) { | |
293 | if (u->aborted) { | |
83548fe2 QT |
294 | ql_dbg(ql_dbg_async, vha, 0x502e, |
295 | "Freeing unknown %s %p, because of Abort\n", | |
41dc529a QT |
296 | "ATIO_TYPE7", u); |
297 | qlt_send_term_exchange(vha, NULL, &u->atio, | |
298 | ha_locked, 0); | |
299 | goto abort; | |
300 | } | |
301 | ||
302 | host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id); | |
303 | if (host != NULL) { | |
83548fe2 QT |
304 | ql_dbg(ql_dbg_async, vha, 0x502f, |
305 | "Requeuing unknown ATIO_TYPE7 %p\n", u); | |
41dc529a QT |
306 | qlt_24xx_atio_pkt(host, &u->atio, ha_locked); |
307 | } else if (tgt->tgt_stop) { | |
83548fe2 QT |
308 | ql_dbg(ql_dbg_async, vha, 0x503a, |
309 | "Freeing unknown %s %p, because tgt is being stopped\n", | |
310 | "ATIO_TYPE7", u); | |
41dc529a QT |
311 | qlt_send_term_exchange(vha, NULL, &u->atio, |
312 | ha_locked, 0); | |
313 | } else { | |
83548fe2 QT |
314 | ql_dbg(ql_dbg_async, vha, 0x503d, |
315 | "Reschedule u %p, vha %p, host %p\n", u, vha, host); | |
41dc529a QT |
316 | if (!queued) { |
317 | queued = 1; | |
318 | schedule_delayed_work(&vha->unknown_atio_work, | |
319 | 1); | |
320 | } | |
321 | continue; | |
322 | } | |
323 | ||
324 | abort: | |
325 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
326 | list_del(&u->cmd_list); | |
327 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
328 | kfree(u); | |
329 | } | |
330 | } | |
331 | ||
332 | void qlt_unknown_atio_work_fn(struct work_struct *work) | |
333 | { | |
334 | struct scsi_qla_host *vha = container_of(to_delayed_work(work), | |
335 | struct scsi_qla_host, unknown_atio_work); | |
336 | ||
337 | qlt_try_to_dequeue_unknown_atios(vha, 0); | |
338 | } | |
339 | ||
3bb67df5 | 340 | static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, |
2f424b9b | 341 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 | 342 | { |
f83adb61 QT |
343 | ql_dbg(ql_dbg_tgt, vha, 0xe072, |
344 | "%s: qla_target(%d): type %x ox_id %04x\n", | |
345 | __func__, vha->vp_idx, atio->u.raw.entry_type, | |
346 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
347 | ||
2d70c103 NB |
348 | switch (atio->u.raw.entry_type) { |
349 | case ATIO_TYPE7: | |
350 | { | |
351 | struct scsi_qla_host *host = qlt_find_host_by_d_id(vha, | |
352 | atio->u.isp24.fcp_hdr.d_id); | |
353 | if (unlikely(NULL == host)) { | |
354 | ql_dbg(ql_dbg_tgt, vha, 0xe03e, | |
355 | "qla_target(%d): Received ATIO_TYPE7 " | |
356 | "with unknown d_id %x:%x:%x\n", vha->vp_idx, | |
357 | atio->u.isp24.fcp_hdr.d_id[0], | |
358 | atio->u.isp24.fcp_hdr.d_id[1], | |
359 | atio->u.isp24.fcp_hdr.d_id[2]); | |
41dc529a QT |
360 | |
361 | ||
362 | qlt_queue_unknown_atio(vha, atio, ha_locked); | |
2d70c103 NB |
363 | break; |
364 | } | |
41dc529a QT |
365 | if (unlikely(!list_empty(&vha->unknown_atio_list))) |
366 | qlt_try_to_dequeue_unknown_atios(vha, ha_locked); | |
367 | ||
2f424b9b | 368 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
369 | break; |
370 | } | |
371 | ||
372 | case IMMED_NOTIFY_TYPE: | |
373 | { | |
374 | struct scsi_qla_host *host = vha; | |
375 | struct imm_ntfy_from_isp *entry = | |
376 | (struct imm_ntfy_from_isp *)atio; | |
377 | ||
378 | if ((entry->u.isp24.vp_index != 0xFF) && | |
379 | (entry->u.isp24.nport_handle != 0xFFFF)) { | |
380 | host = qlt_find_host_by_vp_idx(vha, | |
381 | entry->u.isp24.vp_index); | |
382 | if (unlikely(!host)) { | |
383 | ql_dbg(ql_dbg_tgt, vha, 0xe03f, | |
384 | "qla_target(%d): Received " | |
385 | "ATIO (IMMED_NOTIFY_TYPE) " | |
386 | "with unknown vp_index %d\n", | |
387 | vha->vp_idx, entry->u.isp24.vp_index); | |
388 | break; | |
389 | } | |
390 | } | |
2f424b9b | 391 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
392 | break; |
393 | } | |
394 | ||
41dc529a QT |
395 | case VP_RPT_ID_IOCB_TYPE: |
396 | qla24xx_report_id_acquisition(vha, | |
397 | (struct vp_rpt_id_entry_24xx *)atio); | |
398 | break; | |
399 | ||
400 | case ABTS_RECV_24XX: | |
401 | { | |
402 | struct abts_recv_from_24xx *entry = | |
403 | (struct abts_recv_from_24xx *)atio; | |
404 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
405 | entry->vp_index); | |
8f6fc8d4 QT |
406 | unsigned long flags; |
407 | ||
41dc529a | 408 | if (unlikely(!host)) { |
83548fe2 | 409 | ql_dbg(ql_dbg_tgt, vha, 0xe00a, |
41dc529a QT |
410 | "qla_target(%d): Response pkt (ABTS_RECV_24XX) " |
411 | "received, with unknown vp_index %d\n", | |
412 | vha->vp_idx, entry->vp_index); | |
413 | break; | |
414 | } | |
8f6fc8d4 QT |
415 | if (!ha_locked) |
416 | spin_lock_irqsave(&host->hw->hardware_lock, flags); | |
417 | qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio); | |
418 | if (!ha_locked) | |
419 | spin_unlock_irqrestore(&host->hw->hardware_lock, flags); | |
41dc529a | 420 | break; |
41dc529a QT |
421 | } |
422 | ||
423 | /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */ | |
424 | ||
2d70c103 NB |
425 | default: |
426 | ql_dbg(ql_dbg_tgt, vha, 0xe040, | |
427 | "qla_target(%d): Received unknown ATIO atio " | |
428 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
429 | break; | |
430 | } | |
431 | ||
3bb67df5 | 432 | return false; |
2d70c103 NB |
433 | } |
434 | ||
435 | void qlt_response_pkt_all_vps(struct scsi_qla_host *vha, response_t *pkt) | |
436 | { | |
437 | switch (pkt->entry_type) { | |
f83adb61 QT |
438 | case CTIO_CRC2: |
439 | ql_dbg(ql_dbg_tgt, vha, 0xe073, | |
440 | "qla_target(%d):%s: CRC2 Response pkt\n", | |
441 | vha->vp_idx, __func__); | |
2d70c103 NB |
442 | case CTIO_TYPE7: |
443 | { | |
444 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
445 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
446 | entry->vp_index); | |
447 | if (unlikely(!host)) { | |
448 | ql_dbg(ql_dbg_tgt, vha, 0xe041, | |
449 | "qla_target(%d): Response pkt (CTIO_TYPE7) " | |
450 | "received, with unknown vp_index %d\n", | |
451 | vha->vp_idx, entry->vp_index); | |
452 | break; | |
453 | } | |
454 | qlt_response_pkt(host, pkt); | |
455 | break; | |
456 | } | |
457 | ||
458 | case IMMED_NOTIFY_TYPE: | |
459 | { | |
460 | struct scsi_qla_host *host = vha; | |
461 | struct imm_ntfy_from_isp *entry = | |
462 | (struct imm_ntfy_from_isp *)pkt; | |
463 | ||
464 | host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index); | |
465 | if (unlikely(!host)) { | |
466 | ql_dbg(ql_dbg_tgt, vha, 0xe042, | |
467 | "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) " | |
468 | "received, with unknown vp_index %d\n", | |
469 | vha->vp_idx, entry->u.isp24.vp_index); | |
470 | break; | |
471 | } | |
472 | qlt_response_pkt(host, pkt); | |
473 | break; | |
474 | } | |
475 | ||
476 | case NOTIFY_ACK_TYPE: | |
477 | { | |
478 | struct scsi_qla_host *host = vha; | |
479 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
480 | ||
481 | if (0xFF != entry->u.isp24.vp_index) { | |
482 | host = qlt_find_host_by_vp_idx(vha, | |
483 | entry->u.isp24.vp_index); | |
484 | if (unlikely(!host)) { | |
485 | ql_dbg(ql_dbg_tgt, vha, 0xe043, | |
486 | "qla_target(%d): Response " | |
487 | "pkt (NOTIFY_ACK_TYPE) " | |
488 | "received, with unknown " | |
489 | "vp_index %d\n", vha->vp_idx, | |
490 | entry->u.isp24.vp_index); | |
491 | break; | |
492 | } | |
493 | } | |
494 | qlt_response_pkt(host, pkt); | |
495 | break; | |
496 | } | |
497 | ||
498 | case ABTS_RECV_24XX: | |
499 | { | |
500 | struct abts_recv_from_24xx *entry = | |
501 | (struct abts_recv_from_24xx *)pkt; | |
502 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
503 | entry->vp_index); | |
504 | if (unlikely(!host)) { | |
505 | ql_dbg(ql_dbg_tgt, vha, 0xe044, | |
506 | "qla_target(%d): Response pkt " | |
507 | "(ABTS_RECV_24XX) received, with unknown " | |
508 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
509 | break; | |
510 | } | |
511 | qlt_response_pkt(host, pkt); | |
512 | break; | |
513 | } | |
514 | ||
515 | case ABTS_RESP_24XX: | |
516 | { | |
517 | struct abts_resp_to_24xx *entry = | |
518 | (struct abts_resp_to_24xx *)pkt; | |
519 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
520 | entry->vp_index); | |
521 | if (unlikely(!host)) { | |
522 | ql_dbg(ql_dbg_tgt, vha, 0xe045, | |
523 | "qla_target(%d): Response pkt " | |
524 | "(ABTS_RECV_24XX) received, with unknown " | |
525 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
526 | break; | |
527 | } | |
528 | qlt_response_pkt(host, pkt); | |
529 | break; | |
530 | } | |
531 | ||
532 | default: | |
533 | qlt_response_pkt(vha, pkt); | |
534 | break; | |
535 | } | |
536 | ||
537 | } | |
538 | ||
b7bd104e AP |
539 | /* |
540 | * All qlt_plogi_ack_t operations are protected by hardware_lock | |
541 | */ | |
726b8548 QT |
542 | static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport, |
543 | struct imm_ntfy_from_isp *ntfy, int type) | |
544 | { | |
545 | struct qla_work_evt *e; | |
546 | e = qla2x00_alloc_work(vha, QLA_EVT_NACK); | |
547 | if (!e) | |
548 | return QLA_FUNCTION_FAILED; | |
549 | ||
550 | e->u.nack.fcport = fcport; | |
551 | e->u.nack.type = type; | |
552 | memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp)); | |
553 | return qla2x00_post_work(vha, e); | |
554 | } | |
555 | ||
556 | static | |
25ff6af1 | 557 | void qla2x00_async_nack_sp_done(void *s, int res) |
726b8548 | 558 | { |
726b8548 | 559 | struct srb *sp = (struct srb *)s; |
25ff6af1 | 560 | struct scsi_qla_host *vha = sp->vha; |
726b8548 QT |
561 | unsigned long flags; |
562 | ||
83548fe2 QT |
563 | ql_dbg(ql_dbg_disc, vha, 0x20f2, |
564 | "Async done-%s res %x %8phC type %d\n", | |
565 | sp->name, res, sp->fcport->port_name, sp->type); | |
726b8548 QT |
566 | |
567 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
568 | sp->fcport->flags &= ~FCF_ASYNC_SENT; | |
569 | sp->fcport->chip_reset = vha->hw->chip_reset; | |
570 | ||
571 | switch (sp->type) { | |
572 | case SRB_NACK_PLOGI: | |
573 | sp->fcport->login_gen++; | |
574 | sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP; | |
575 | sp->fcport->logout_on_delete = 1; | |
5b33469a | 576 | sp->fcport->plogi_nack_done_deadline = jiffies + HZ; |
726b8548 QT |
577 | break; |
578 | ||
579 | case SRB_NACK_PRLI: | |
580 | sp->fcport->fw_login_state = DSC_LS_PRLI_COMP; | |
581 | sp->fcport->deleted = 0; | |
582 | ||
583 | if (!sp->fcport->login_succ && | |
584 | !IS_SW_RESV_ADDR(sp->fcport->d_id)) { | |
585 | sp->fcport->login_succ = 1; | |
586 | ||
587 | vha->fcport_count++; | |
588 | ||
589 | if (!IS_IIDMA_CAPABLE(vha->hw) || | |
590 | !vha->hw->flags.gpsc_supported) { | |
83548fe2 QT |
591 | ql_dbg(ql_dbg_disc, vha, 0x20f3, |
592 | "%s %d %8phC post upd_fcport fcp_cnt %d\n", | |
593 | __func__, __LINE__, | |
594 | sp->fcport->port_name, | |
595 | vha->fcport_count); | |
726b8548 QT |
596 | |
597 | qla24xx_post_upd_fcport_work(vha, sp->fcport); | |
598 | } else { | |
83548fe2 QT |
599 | ql_dbg(ql_dbg_disc, vha, 0x20f5, |
600 | "%s %d %8phC post gpsc fcp_cnt %d\n", | |
601 | __func__, __LINE__, | |
602 | sp->fcport->port_name, | |
603 | vha->fcport_count); | |
726b8548 QT |
604 | |
605 | qla24xx_post_gpsc_work(vha, sp->fcport); | |
606 | } | |
607 | } | |
608 | break; | |
609 | ||
610 | case SRB_NACK_LOGO: | |
611 | sp->fcport->login_gen++; | |
612 | sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
613 | qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE); | |
614 | break; | |
615 | } | |
616 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
617 | ||
25ff6af1 | 618 | sp->free(sp); |
726b8548 QT |
619 | } |
620 | ||
621 | int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport, | |
622 | struct imm_ntfy_from_isp *ntfy, int type) | |
623 | { | |
624 | int rval = QLA_FUNCTION_FAILED; | |
625 | srb_t *sp; | |
626 | char *c = NULL; | |
627 | ||
628 | fcport->flags |= FCF_ASYNC_SENT; | |
629 | switch (type) { | |
630 | case SRB_NACK_PLOGI: | |
631 | fcport->fw_login_state = DSC_LS_PLOGI_PEND; | |
632 | c = "PLOGI"; | |
633 | break; | |
634 | case SRB_NACK_PRLI: | |
635 | fcport->fw_login_state = DSC_LS_PRLI_PEND; | |
ec7193e2 | 636 | fcport->deleted = 0; |
726b8548 QT |
637 | c = "PRLI"; |
638 | break; | |
639 | case SRB_NACK_LOGO: | |
640 | fcport->fw_login_state = DSC_LS_LOGO_PEND; | |
641 | c = "LOGO"; | |
642 | break; | |
643 | } | |
644 | ||
645 | sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); | |
646 | if (!sp) | |
647 | goto done; | |
648 | ||
649 | sp->type = type; | |
650 | sp->name = "nack"; | |
651 | ||
652 | qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2); | |
653 | ||
654 | sp->u.iocb_cmd.u.nack.ntfy = ntfy; | |
655 | ||
656 | sp->done = qla2x00_async_nack_sp_done; | |
657 | ||
658 | rval = qla2x00_start_sp(sp); | |
659 | if (rval != QLA_SUCCESS) | |
660 | goto done_free_sp; | |
661 | ||
83548fe2 QT |
662 | ql_dbg(ql_dbg_disc, vha, 0x20f4, |
663 | "Async-%s %8phC hndl %x %s\n", | |
664 | sp->name, fcport->port_name, sp->handle, c); | |
726b8548 QT |
665 | |
666 | return rval; | |
667 | ||
668 | done_free_sp: | |
25ff6af1 | 669 | sp->free(sp); |
726b8548 QT |
670 | done: |
671 | fcport->flags &= ~FCF_ASYNC_SENT; | |
672 | return rval; | |
673 | } | |
674 | ||
675 | void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e) | |
676 | { | |
677 | fc_port_t *t; | |
678 | unsigned long flags; | |
679 | ||
680 | switch (e->u.nack.type) { | |
681 | case SRB_NACK_PRLI: | |
682 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
683 | t = qlt_create_sess(vha, e->u.nack.fcport, 0); | |
684 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
685 | if (t) { | |
83548fe2 | 686 | ql_log(ql_log_info, vha, 0xd034, |
726b8548 QT |
687 | "%s create sess success %p", __func__, t); |
688 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
689 | /* create sess has an extra kref */ | |
690 | vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport); | |
691 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
692 | } | |
693 | break; | |
694 | } | |
695 | qla24xx_async_notify_ack(vha, e->u.nack.fcport, | |
696 | (struct imm_ntfy_from_isp*)e->u.nack.iocb, e->u.nack.type); | |
697 | } | |
698 | ||
699 | void qla24xx_delete_sess_fn(struct work_struct *work) | |
700 | { | |
701 | fc_port_t *fcport = container_of(work, struct fc_port, del_work); | |
702 | struct qla_hw_data *ha = fcport->vha->hw; | |
703 | unsigned long flags; | |
704 | ||
705 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
706 | ||
707 | if (fcport->se_sess) { | |
708 | ha->tgt.tgt_ops->shutdown_sess(fcport); | |
709 | ha->tgt.tgt_ops->put_sess(fcport); | |
710 | } else { | |
711 | qlt_unreg_sess(fcport); | |
712 | } | |
713 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
714 | } | |
715 | ||
716 | /* | |
717 | * Called from qla2x00_reg_remote_port() | |
718 | */ | |
719 | void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) | |
720 | { | |
721 | struct qla_hw_data *ha = vha->hw; | |
722 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
723 | struct fc_port *sess = fcport; | |
724 | unsigned long flags; | |
725 | ||
726 | if (!vha->hw->tgt.tgt_ops) | |
727 | return; | |
728 | ||
729 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
730 | if (tgt->tgt_stop) { | |
731 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
732 | return; | |
733 | } | |
734 | ||
735 | if (fcport->disc_state == DSC_DELETE_PEND) { | |
736 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
737 | return; | |
738 | } | |
739 | ||
740 | if (!sess->se_sess) { | |
741 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
742 | ||
743 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
744 | sess = qlt_create_sess(vha, fcport, false); | |
745 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
746 | ||
747 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
748 | } else { | |
749 | if (fcport->fw_login_state == DSC_LS_PRLI_COMP) { | |
750 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
751 | return; | |
752 | } | |
753 | ||
754 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 755 | ql_dbg(ql_dbg_disc, vha, 0x2107, |
726b8548 QT |
756 | "%s: kref_get fail sess %8phC \n", |
757 | __func__, sess->port_name); | |
758 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
759 | return; | |
760 | } | |
761 | ||
762 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c, | |
763 | "qla_target(%u): %ssession for port %8phC " | |
764 | "(loop ID %d) reappeared\n", vha->vp_idx, | |
765 | sess->local ? "local " : "", sess->port_name, sess->loop_id); | |
766 | ||
767 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007, | |
768 | "Reappeared sess %p\n", sess); | |
769 | ||
770 | ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, | |
771 | fcport->loop_id, | |
772 | (fcport->flags & FCF_CONF_COMP_SUPPORTED)); | |
773 | } | |
774 | ||
775 | if (sess && sess->local) { | |
776 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d, | |
777 | "qla_target(%u): local session for " | |
778 | "port %8phC (loop ID %d) became global\n", vha->vp_idx, | |
779 | fcport->port_name, sess->loop_id); | |
780 | sess->local = 0; | |
781 | } | |
782 | ha->tgt.tgt_ops->put_sess(sess); | |
783 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
784 | } | |
b7bd104e AP |
785 | |
786 | /* | |
787 | * This is a zero-base ref-counting solution, since hardware_lock | |
788 | * guarantees that ref_count is not modified concurrently. | |
789 | * Upon successful return content of iocb is undefined | |
790 | */ | |
5d964837 | 791 | static struct qlt_plogi_ack_t * |
b7bd104e AP |
792 | qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id, |
793 | struct imm_ntfy_from_isp *iocb) | |
794 | { | |
5d964837 | 795 | struct qlt_plogi_ack_t *pla; |
b7bd104e AP |
796 | |
797 | list_for_each_entry(pla, &vha->plogi_ack_list, list) { | |
798 | if (pla->id.b24 == id->b24) { | |
799 | qlt_send_term_imm_notif(vha, &pla->iocb, 1); | |
5d964837 | 800 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
801 | return pla; |
802 | } | |
803 | } | |
804 | ||
805 | pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC); | |
806 | if (!pla) { | |
807 | ql_dbg(ql_dbg_async, vha, 0x5088, | |
808 | "qla_target(%d): Allocation of plogi_ack failed\n", | |
809 | vha->vp_idx); | |
810 | return NULL; | |
811 | } | |
812 | ||
5d964837 | 813 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
814 | pla->id = *id; |
815 | list_add_tail(&pla->list, &vha->plogi_ack_list); | |
816 | ||
817 | return pla; | |
818 | } | |
819 | ||
726b8548 | 820 | void qlt_plogi_ack_unref(struct scsi_qla_host *vha, |
5d964837 | 821 | struct qlt_plogi_ack_t *pla) |
b7bd104e | 822 | { |
5d964837 | 823 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
726b8548 QT |
824 | port_id_t port_id; |
825 | uint16_t loop_id; | |
826 | fc_port_t *fcport = pla->fcport; | |
827 | ||
b7bd104e AP |
828 | BUG_ON(!pla->ref_count); |
829 | pla->ref_count--; | |
830 | ||
831 | if (pla->ref_count) | |
832 | return; | |
833 | ||
726b8548 | 834 | ql_dbg(ql_dbg_disc, vha, 0x5089, |
b7bd104e | 835 | "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x" |
5d964837 QT |
836 | " exch %#x ox_id %#x\n", iocb->u.isp24.port_name, |
837 | iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1], | |
838 | iocb->u.isp24.port_id[0], | |
839 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
840 | iocb->u.isp24.exchange_address, iocb->ox_id); | |
726b8548 QT |
841 | |
842 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
843 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
844 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
845 | port_id.b.rsvd_1 = 0; | |
846 | ||
847 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
848 | ||
849 | fcport->loop_id = loop_id; | |
850 | fcport->d_id = port_id; | |
851 | qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI); | |
852 | ||
853 | list_for_each_entry(fcport, &vha->vp_fcports, list) { | |
854 | if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla) | |
855 | fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; | |
856 | if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla) | |
857 | fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; | |
858 | } | |
b7bd104e AP |
859 | |
860 | list_del(&pla->list); | |
861 | kmem_cache_free(qla_tgt_plogi_cachep, pla); | |
862 | } | |
863 | ||
726b8548 | 864 | void |
5d964837 QT |
865 | qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla, |
866 | struct fc_port *sess, enum qlt_plogi_link_t link) | |
b7bd104e | 867 | { |
5d964837 | 868 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
b7bd104e AP |
869 | /* Inc ref_count first because link might already be pointing at pla */ |
870 | pla->ref_count++; | |
871 | ||
726b8548 QT |
872 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097, |
873 | "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC" | |
874 | " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n", | |
875 | sess, link, sess->port_name, | |
876 | iocb->u.isp24.port_name, iocb->u.isp24.port_id[2], | |
877 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
878 | pla->ref_count, pla, link); | |
879 | ||
b7bd104e AP |
880 | if (sess->plogi_link[link]) |
881 | qlt_plogi_ack_unref(vha, sess->plogi_link[link]); | |
882 | ||
726b8548 QT |
883 | if (link == QLT_PLOGI_LINK_SAME_WWN) |
884 | pla->fcport = sess; | |
b7bd104e AP |
885 | |
886 | sess->plogi_link[link] = pla; | |
887 | } | |
888 | ||
71cdc079 AP |
889 | typedef struct { |
890 | /* These fields must be initialized by the caller */ | |
891 | port_id_t id; | |
892 | /* | |
893 | * number of cmds dropped while we were waiting for | |
894 | * initiator to ack LOGO initialize to 1 if LOGO is | |
895 | * triggered by a command, otherwise, to 0 | |
896 | */ | |
897 | int cmd_count; | |
898 | ||
899 | /* These fields are used by callee */ | |
900 | struct list_head list; | |
901 | } qlt_port_logo_t; | |
902 | ||
903 | static void | |
904 | qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo) | |
905 | { | |
906 | qlt_port_logo_t *tmp; | |
907 | int res; | |
908 | ||
909 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
910 | ||
911 | list_for_each_entry(tmp, &vha->logo_list, list) { | |
912 | if (tmp->id.b24 == logo->id.b24) { | |
913 | tmp->cmd_count += logo->cmd_count; | |
914 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
915 | return; | |
916 | } | |
917 | } | |
918 | ||
919 | list_add_tail(&logo->list, &vha->logo_list); | |
920 | ||
921 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
922 | ||
923 | res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id); | |
924 | ||
925 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
926 | list_del(&logo->list); | |
927 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
928 | ||
b7bd104e AP |
929 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098, |
930 | "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n", | |
931 | logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa, | |
932 | logo->cmd_count, res); | |
71cdc079 AP |
933 | } |
934 | ||
2d70c103 NB |
935 | static void qlt_free_session_done(struct work_struct *work) |
936 | { | |
5d964837 | 937 | struct fc_port *sess = container_of(work, struct fc_port, |
2d70c103 NB |
938 | free_work); |
939 | struct qla_tgt *tgt = sess->tgt; | |
940 | struct scsi_qla_host *vha = sess->vha; | |
941 | struct qla_hw_data *ha = vha->hw; | |
a6ca8878 AP |
942 | unsigned long flags; |
943 | bool logout_started = false; | |
726b8548 | 944 | struct event_arg ea; |
41dc529a | 945 | scsi_qla_host_t *base_vha; |
a6ca8878 AP |
946 | |
947 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084, | |
948 | "%s: se_sess %p / sess %p from port %8phC loop_id %#04x" | |
b7bd104e | 949 | " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n", |
a6ca8878 | 950 | __func__, sess->se_sess, sess, sess->port_name, sess->loop_id, |
37cacc0a | 951 | sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa, |
a6ca8878 | 952 | sess->logout_on_delete, sess->keep_nport_handle, |
b7bd104e | 953 | sess->send_els_logo); |
2d70c103 | 954 | |
a6ca8878 | 955 | |
726b8548 | 956 | if (!IS_SW_RESV_ADDR(sess->d_id)) { |
41dc529a QT |
957 | if (sess->send_els_logo) { |
958 | qlt_port_logo_t logo; | |
71cdc079 | 959 | |
41dc529a QT |
960 | logo.id = sess->d_id; |
961 | logo.cmd_count = 0; | |
962 | qlt_send_first_logo(vha, &logo); | |
963 | } | |
964 | ||
965 | if (sess->logout_on_delete) { | |
966 | int rc; | |
967 | ||
968 | rc = qla2x00_post_async_logout_work(vha, sess, NULL); | |
969 | if (rc != QLA_SUCCESS) | |
970 | ql_log(ql_log_warn, vha, 0xf085, | |
971 | "Schedule logo failed sess %p rc %d\n", | |
972 | sess, rc); | |
973 | else | |
974 | logout_started = true; | |
975 | } | |
726b8548 | 976 | } |
a6ca8878 | 977 | |
2d70c103 NB |
978 | /* |
979 | * Release the target session for FC Nexus from fabric module code. | |
980 | */ | |
981 | if (sess->se_sess != NULL) | |
982 | ha->tgt.tgt_ops->free_session(sess); | |
983 | ||
a6ca8878 AP |
984 | if (logout_started) { |
985 | bool traced = false; | |
986 | ||
987 | while (!ACCESS_ONCE(sess->logout_completed)) { | |
988 | if (!traced) { | |
989 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086, | |
990 | "%s: waiting for sess %p logout\n", | |
991 | __func__, sess); | |
992 | traced = true; | |
993 | } | |
994 | msleep(100); | |
995 | } | |
996 | ||
726b8548 | 997 | ql_dbg(ql_dbg_disc, vha, 0xf087, |
41dc529a QT |
998 | "%s: sess %p logout completed\n",__func__, sess); |
999 | } | |
1000 | ||
1001 | if (sess->logo_ack_needed) { | |
1002 | sess->logo_ack_needed = 0; | |
1003 | qla24xx_async_notify_ack(vha, sess, | |
1004 | (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO); | |
a6ca8878 AP |
1005 | } |
1006 | ||
726b8548 QT |
1007 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1008 | if (sess->se_sess) { | |
1009 | sess->se_sess = NULL; | |
1010 | if (tgt && !IS_SW_RESV_ADDR(sess->d_id)) | |
1011 | tgt->sess_count--; | |
1012 | } | |
1013 | ||
1014 | sess->disc_state = DSC_DELETED; | |
1015 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1016 | sess->deleted = QLA_SESS_DELETED; | |
1017 | sess->login_retry = vha->hw->login_retry_count; | |
1018 | ||
1019 | if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) { | |
1020 | vha->fcport_count--; | |
1021 | sess->login_succ = 0; | |
1022 | } | |
1023 | ||
1024 | if (sess->chip_reset != sess->vha->hw->chip_reset) | |
1025 | qla2x00_clear_loop_id(sess); | |
1026 | ||
1027 | if (sess->conflict) { | |
1028 | sess->conflict->login_pause = 0; | |
1029 | sess->conflict = NULL; | |
1030 | if (!test_bit(UNLOADING, &vha->dpc_flags)) | |
1031 | set_bit(RELOGIN_NEEDED, &vha->dpc_flags); | |
1032 | } | |
1033 | ||
b7bd104e | 1034 | { |
5d964837 | 1035 | struct qlt_plogi_ack_t *own = |
b7bd104e | 1036 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]; |
5d964837 | 1037 | struct qlt_plogi_ack_t *con = |
b7bd104e | 1038 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]; |
5d964837 | 1039 | struct imm_ntfy_from_isp *iocb; |
b7bd104e AP |
1040 | |
1041 | if (con) { | |
5d964837 | 1042 | iocb = &con->iocb; |
b7bd104e | 1043 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099, |
5d964837 QT |
1044 | "se_sess %p / sess %p port %8phC is gone," |
1045 | " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n", | |
1046 | sess->se_sess, sess, sess->port_name, | |
1047 | own ? "releasing own PLOGI" : "no own PLOGI pending", | |
1048 | own ? own->ref_count : -1, | |
1049 | iocb->u.isp24.port_name, con->ref_count); | |
b7bd104e | 1050 | qlt_plogi_ack_unref(vha, con); |
726b8548 | 1051 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; |
b7bd104e AP |
1052 | } else { |
1053 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a, | |
1054 | "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n", | |
1055 | sess->se_sess, sess, sess->port_name, | |
1056 | own ? "releasing own PLOGI" : | |
1057 | "no own PLOGI pending", | |
1058 | own ? own->ref_count : -1); | |
1059 | } | |
1060 | ||
726b8548 QT |
1061 | if (own) { |
1062 | sess->fw_login_state = DSC_LS_PLOGI_PEND; | |
b7bd104e | 1063 | qlt_plogi_ack_unref(vha, own); |
726b8548 QT |
1064 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; |
1065 | } | |
b7bd104e | 1066 | } |
5d964837 QT |
1067 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
1068 | ||
2d70c103 | 1069 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001, |
726b8548 QT |
1070 | "Unregistration of sess %p %8phC finished fcp_cnt %d\n", |
1071 | sess, sess->port_name, vha->fcport_count); | |
2d70c103 | 1072 | |
726b8548 | 1073 | if (tgt && (tgt->sess_count == 0)) |
2d70c103 | 1074 | wake_up_all(&tgt->waitQ); |
726b8548 QT |
1075 | |
1076 | if (vha->fcport_count == 0) | |
1077 | wake_up_all(&vha->fcport_waitQ); | |
1078 | ||
41dc529a QT |
1079 | base_vha = pci_get_drvdata(ha->pdev); |
1080 | if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) | |
1081 | return; | |
1082 | ||
726b8548 QT |
1083 | if (!tgt || !tgt->tgt_stop) { |
1084 | memset(&ea, 0, sizeof(ea)); | |
1085 | ea.event = FCME_DELETE_DONE; | |
1086 | ea.fcport = sess; | |
1087 | qla2x00_fcport_event_handler(vha, &ea); | |
1088 | } | |
2d70c103 NB |
1089 | } |
1090 | ||
7560151b | 1091 | /* ha->tgt.sess_lock supposed to be held on entry */ |
5d964837 | 1092 | void qlt_unreg_sess(struct fc_port *sess) |
2d70c103 NB |
1093 | { |
1094 | struct scsi_qla_host *vha = sess->vha; | |
1095 | ||
83548fe2 | 1096 | ql_dbg(ql_dbg_disc, sess->vha, 0x210a, |
5d964837 QT |
1097 | "%s sess %p for deletion %8phC\n", |
1098 | __func__, sess, sess->port_name); | |
1099 | ||
36c78452 QT |
1100 | if (sess->se_sess) |
1101 | vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess); | |
2d70c103 | 1102 | |
5d964837 QT |
1103 | qla2x00_mark_device_lost(vha, sess, 1, 1); |
1104 | ||
a6ca8878 | 1105 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; |
726b8548 QT |
1106 | sess->disc_state = DSC_DELETE_PEND; |
1107 | sess->last_rscn_gen = sess->rscn_gen; | |
1108 | sess->last_login_gen = sess->login_gen; | |
2d70c103 NB |
1109 | |
1110 | INIT_WORK(&sess->free_work, qlt_free_session_done); | |
1111 | schedule_work(&sess->free_work); | |
1112 | } | |
5d964837 | 1113 | EXPORT_SYMBOL(qlt_unreg_sess); |
7560151b | 1114 | |
2d70c103 NB |
1115 | static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd) |
1116 | { | |
1117 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 1118 | struct fc_port *sess = NULL; |
2d70c103 NB |
1119 | uint16_t loop_id; |
1120 | int res = 0; | |
1121 | struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb; | |
7560151b | 1122 | unsigned long flags; |
2d70c103 NB |
1123 | |
1124 | loop_id = le16_to_cpu(n->u.isp24.nport_handle); | |
1125 | if (loop_id == 0xFFFF) { | |
2d70c103 | 1126 | /* Global event */ |
b2032fd5 | 1127 | atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); |
7560151b | 1128 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
b2032fd5 | 1129 | qlt_clear_tgt_db(vha->vha_tgt.qla_tgt); |
7560151b | 1130 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 1131 | } else { |
7560151b | 1132 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1133 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b | 1134 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1135 | } |
1136 | ||
1137 | ql_dbg(ql_dbg_tgt, vha, 0xe000, | |
1138 | "Using sess for qla_tgt_reset: %p\n", sess); | |
1139 | if (!sess) { | |
1140 | res = -ESRCH; | |
1141 | return res; | |
1142 | } | |
1143 | ||
1144 | ql_dbg(ql_dbg_tgt, vha, 0xe047, | |
7b833558 OK |
1145 | "scsi(%ld): resetting (session %p from port %8phC mcmd %x, " |
1146 | "loop_id %d)\n", vha->host_no, sess, sess->port_name, | |
2d70c103 NB |
1147 | mcmd, loop_id); |
1148 | ||
bb1181c9 | 1149 | return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK); |
2d70c103 NB |
1150 | } |
1151 | ||
726b8548 QT |
1152 | static void qla24xx_chk_fcp_state(struct fc_port *sess) |
1153 | { | |
1154 | if (sess->chip_reset != sess->vha->hw->chip_reset) { | |
1155 | sess->logout_on_delete = 0; | |
1156 | sess->logo_ack_needed = 0; | |
1157 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1158 | sess->scan_state = 0; | |
1159 | } | |
1160 | } | |
1161 | ||
7560151b | 1162 | /* ha->tgt.sess_lock supposed to be held on entry */ |
726b8548 | 1163 | void qlt_schedule_sess_for_deletion(struct fc_port *sess, |
2d70c103 NB |
1164 | bool immediate) |
1165 | { | |
1166 | struct qla_tgt *tgt = sess->tgt; | |
2d70c103 | 1167 | |
726b8548 QT |
1168 | if (sess->disc_state == DSC_DELETE_PEND) |
1169 | return; | |
1170 | ||
1171 | if (sess->disc_state == DSC_DELETED) { | |
1172 | if (tgt && tgt->tgt_stop && (tgt->sess_count == 0)) | |
1173 | wake_up_all(&tgt->waitQ); | |
1174 | if (sess->vha->fcport_count == 0) | |
1175 | wake_up_all(&sess->vha->fcport_waitQ); | |
1176 | ||
1177 | if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] && | |
1178 | !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) | |
a6ca8878 AP |
1179 | return; |
1180 | } | |
2d70c103 | 1181 | |
726b8548 | 1182 | sess->disc_state = DSC_DELETE_PEND; |
2d70c103 | 1183 | |
726b8548 QT |
1184 | if (sess->deleted == QLA_SESS_DELETED) |
1185 | sess->logout_on_delete = 0; | |
1186 | ||
1187 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; | |
1188 | qla24xx_chk_fcp_state(sess); | |
2d70c103 | 1189 | |
726b8548 QT |
1190 | ql_dbg(ql_dbg_tgt, sess->vha, 0xe001, |
1191 | "Scheduling sess %p for deletion\n", sess); | |
2d70c103 | 1192 | |
726b8548 QT |
1193 | schedule_work(&sess->del_work); |
1194 | } | |
2d70c103 | 1195 | |
726b8548 QT |
1196 | void qlt_schedule_sess_for_deletion_lock(struct fc_port *sess) |
1197 | { | |
1198 | unsigned long flags; | |
1199 | struct qla_hw_data *ha = sess->vha->hw; | |
1200 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
1201 | qlt_schedule_sess_for_deletion(sess, 1); | |
1202 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
1203 | } |
1204 | ||
7560151b | 1205 | /* ha->tgt.sess_lock supposed to be held on entry */ |
c5701042 | 1206 | static void qlt_clear_tgt_db(struct qla_tgt *tgt) |
2d70c103 | 1207 | { |
5d964837 QT |
1208 | struct fc_port *sess; |
1209 | scsi_qla_host_t *vha = tgt->vha; | |
2d70c103 | 1210 | |
5d964837 QT |
1211 | list_for_each_entry(sess, &vha->vp_fcports, list) { |
1212 | if (sess->se_sess) | |
726b8548 | 1213 | qlt_schedule_sess_for_deletion(sess, 1); |
5d964837 | 1214 | } |
2d70c103 NB |
1215 | |
1216 | /* At this point tgt could be already dead */ | |
1217 | } | |
1218 | ||
1219 | static int qla24xx_get_loop_id(struct scsi_qla_host *vha, const uint8_t *s_id, | |
1220 | uint16_t *loop_id) | |
1221 | { | |
1222 | struct qla_hw_data *ha = vha->hw; | |
1223 | dma_addr_t gid_list_dma; | |
1224 | struct gid_list_info *gid_list; | |
1225 | char *id_iter; | |
1226 | int res, rc, i; | |
1227 | uint16_t entries; | |
1228 | ||
1229 | gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1230 | &gid_list_dma, GFP_KERNEL); | |
1231 | if (!gid_list) { | |
1232 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044, | |
1233 | "qla_target(%d): DMA Alloc failed of %u\n", | |
1234 | vha->vp_idx, qla2x00_gid_list_size(ha)); | |
1235 | return -ENOMEM; | |
1236 | } | |
1237 | ||
1238 | /* Get list of logged in devices */ | |
15f30a57 | 1239 | rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries); |
2d70c103 NB |
1240 | if (rc != QLA_SUCCESS) { |
1241 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045, | |
1242 | "qla_target(%d): get_id_list() failed: %x\n", | |
1243 | vha->vp_idx, rc); | |
71cdc079 | 1244 | res = -EBUSY; |
2d70c103 NB |
1245 | goto out_free_id_list; |
1246 | } | |
1247 | ||
1248 | id_iter = (char *)gid_list; | |
71cdc079 | 1249 | res = -ENOENT; |
2d70c103 NB |
1250 | for (i = 0; i < entries; i++) { |
1251 | struct gid_list_info *gid = (struct gid_list_info *)id_iter; | |
1252 | if ((gid->al_pa == s_id[2]) && | |
1253 | (gid->area == s_id[1]) && | |
1254 | (gid->domain == s_id[0])) { | |
1255 | *loop_id = le16_to_cpu(gid->loop_id); | |
1256 | res = 0; | |
1257 | break; | |
1258 | } | |
1259 | id_iter += ha->gid_list_info_size; | |
1260 | } | |
1261 | ||
1262 | out_free_id_list: | |
1263 | dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1264 | gid_list, gid_list_dma); | |
1265 | return res; | |
1266 | } | |
1267 | ||
2d70c103 NB |
1268 | /* |
1269 | * Adds an extra ref to allow to drop hw lock after adding sess to the list. | |
1270 | * Caller must put it. | |
1271 | */ | |
5d964837 | 1272 | static struct fc_port *qlt_create_sess( |
2d70c103 NB |
1273 | struct scsi_qla_host *vha, |
1274 | fc_port_t *fcport, | |
1275 | bool local) | |
1276 | { | |
1277 | struct qla_hw_data *ha = vha->hw; | |
726b8548 | 1278 | struct fc_port *sess = fcport; |
2d70c103 | 1279 | unsigned long flags; |
2d70c103 | 1280 | |
726b8548 QT |
1281 | if (vha->vha_tgt.qla_tgt->tgt_stop) |
1282 | return NULL; | |
2d70c103 | 1283 | |
726b8548 QT |
1284 | if (fcport->se_sess) { |
1285 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 1286 | ql_dbg(ql_dbg_disc, vha, 0x20f6, |
726b8548 QT |
1287 | "%s: kref_get_unless_zero failed for %8phC\n", |
1288 | __func__, sess->port_name); | |
1289 | return NULL; | |
2d70c103 | 1290 | } |
726b8548 | 1291 | return fcport; |
2d70c103 | 1292 | } |
0e8cd71c | 1293 | sess->tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 1294 | sess->local = local; |
a6ca8878 | 1295 | |
726b8548 QT |
1296 | /* |
1297 | * Under normal circumstances we want to logout from firmware when | |
a6ca8878 AP |
1298 | * session eventually ends and release corresponding nport handle. |
1299 | * In the exception cases (e.g. when new PLOGI is waiting) corresponding | |
726b8548 QT |
1300 | * code will adjust these flags as necessary. |
1301 | */ | |
a6ca8878 AP |
1302 | sess->logout_on_delete = 1; |
1303 | sess->keep_nport_handle = 0; | |
726b8548 | 1304 | sess->logout_completed = 0; |
2d70c103 | 1305 | |
726b8548 QT |
1306 | if (ha->tgt.tgt_ops->check_initiator_node_acl(vha, |
1307 | &fcport->port_name[0], sess) < 0) { | |
83548fe2 | 1308 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015, |
726b8548 QT |
1309 | "(%d) %8phC check_initiator_node_acl failed\n", |
1310 | vha->vp_idx, fcport->port_name); | |
1311 | return NULL; | |
1312 | } else { | |
1313 | kref_init(&fcport->sess_kref); | |
1314 | /* | |
1315 | * Take an extra reference to ->sess_kref here to handle | |
1316 | * fc_port access across ->tgt.sess_lock reaquire. | |
1317 | */ | |
1318 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 1319 | ql_dbg(ql_dbg_disc, vha, 0x20f7, |
726b8548 QT |
1320 | "%s: kref_get_unless_zero failed for %8phC\n", |
1321 | __func__, sess->port_name); | |
1322 | return NULL; | |
1323 | } | |
2d70c103 | 1324 | |
726b8548 QT |
1325 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1326 | if (!IS_SW_RESV_ADDR(sess->d_id)) | |
1327 | vha->vha_tgt.qla_tgt->sess_count++; | |
2d70c103 | 1328 | |
726b8548 QT |
1329 | qlt_do_generation_tick(vha, &sess->generation); |
1330 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1331 | } | |
1332 | ||
1333 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006, | |
1334 | "Adding sess %p se_sess %p to tgt %p sess_count %d\n", | |
1335 | sess, sess->se_sess, vha->vha_tgt.qla_tgt, | |
1336 | vha->vha_tgt.qla_tgt->sess_count); | |
2d70c103 NB |
1337 | |
1338 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b, | |
7b833558 OK |
1339 | "qla_target(%d): %ssession for wwn %8phC (loop_id %d, " |
1340 | "s_id %x:%x:%x, confirmed completion %ssupported) added\n", | |
1341 | vha->vp_idx, local ? "local " : "", fcport->port_name, | |
37cacc0a QT |
1342 | fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area, |
1343 | sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not "); | |
2d70c103 NB |
1344 | |
1345 | return sess; | |
1346 | } | |
1347 | ||
df673274 AP |
1348 | /* |
1349 | * max_gen - specifies maximum session generation | |
1350 | * at which this deletion requestion is still valid | |
1351 | */ | |
1352 | void | |
1353 | qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen) | |
2d70c103 | 1354 | { |
0e8cd71c | 1355 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 1356 | struct fc_port *sess = fcport; |
7560151b | 1357 | unsigned long flags; |
2d70c103 NB |
1358 | |
1359 | if (!vha->hw->tgt.tgt_ops) | |
1360 | return; | |
1361 | ||
b2032fd5 | 1362 | if (!tgt) |
2d70c103 NB |
1363 | return; |
1364 | ||
7560151b | 1365 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
2d70c103 | 1366 | if (tgt->tgt_stop) { |
7560151b | 1367 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1368 | return; |
1369 | } | |
5d964837 | 1370 | if (!sess->se_sess) { |
7560151b | 1371 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1372 | return; |
1373 | } | |
1374 | ||
df673274 | 1375 | if (max_gen - sess->generation < 0) { |
7560151b | 1376 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
df673274 AP |
1377 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092, |
1378 | "Ignoring stale deletion request for se_sess %p / sess %p" | |
1379 | " for port %8phC, req_gen %d, sess_gen %d\n", | |
1380 | sess->se_sess, sess, sess->port_name, max_gen, | |
1381 | sess->generation); | |
1382 | return; | |
1383 | } | |
1384 | ||
2d70c103 NB |
1385 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess); |
1386 | ||
1387 | sess->local = 1; | |
1388 | qlt_schedule_sess_for_deletion(sess, false); | |
7560151b | 1389 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1390 | } |
1391 | ||
1392 | static inline int test_tgt_sess_count(struct qla_tgt *tgt) | |
1393 | { | |
1394 | struct qla_hw_data *ha = tgt->ha; | |
1395 | unsigned long flags; | |
1396 | int res; | |
1397 | /* | |
1398 | * We need to protect against race, when tgt is freed before or | |
1399 | * inside wake_up() | |
1400 | */ | |
726b8548 | 1401 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1402 | ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002, |
5d964837 QT |
1403 | "tgt %p, sess_count=%d\n", |
1404 | tgt, tgt->sess_count); | |
2d70c103 | 1405 | res = (tgt->sess_count == 0); |
726b8548 | 1406 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1407 | |
1408 | return res; | |
1409 | } | |
1410 | ||
1411 | /* Called by tcm_qla2xxx configfs code */ | |
3c231bda | 1412 | int qlt_stop_phase1(struct qla_tgt *tgt) |
2d70c103 NB |
1413 | { |
1414 | struct scsi_qla_host *vha = tgt->vha; | |
1415 | struct qla_hw_data *ha = tgt->ha; | |
1416 | unsigned long flags; | |
1417 | ||
3c231bda NB |
1418 | mutex_lock(&qla_tgt_mutex); |
1419 | if (!vha->fc_vport) { | |
1420 | struct Scsi_Host *sh = vha->host; | |
1421 | struct fc_host_attrs *fc_host = shost_to_fc_host(sh); | |
1422 | bool npiv_vports; | |
1423 | ||
1424 | spin_lock_irqsave(sh->host_lock, flags); | |
1425 | npiv_vports = (fc_host->npiv_vports_inuse); | |
1426 | spin_unlock_irqrestore(sh->host_lock, flags); | |
1427 | ||
1428 | if (npiv_vports) { | |
1429 | mutex_unlock(&qla_tgt_mutex); | |
3a33dc95 QT |
1430 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021, |
1431 | "NPIV is in use. Can not stop target\n"); | |
3c231bda NB |
1432 | return -EPERM; |
1433 | } | |
1434 | } | |
2d70c103 NB |
1435 | if (tgt->tgt_stop || tgt->tgt_stopped) { |
1436 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e, | |
1437 | "Already in tgt->tgt_stop or tgt_stopped state\n"); | |
3c231bda NB |
1438 | mutex_unlock(&qla_tgt_mutex); |
1439 | return -EPERM; | |
2d70c103 NB |
1440 | } |
1441 | ||
3a33dc95 | 1442 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n", |
2d70c103 NB |
1443 | vha->host_no, vha); |
1444 | /* | |
1445 | * Mutex needed to sync with qla_tgt_fc_port_[added,deleted]. | |
1446 | * Lock is needed, because we still can get an incoming packet. | |
1447 | */ | |
0e8cd71c | 1448 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
7560151b | 1449 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1450 | tgt->tgt_stop = 1; |
c5701042 | 1451 | qlt_clear_tgt_db(tgt); |
7560151b | 1452 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
0e8cd71c | 1453 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
3c231bda | 1454 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 | 1455 | |
2d70c103 NB |
1456 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009, |
1457 | "Waiting for sess works (tgt %p)", tgt); | |
1458 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1459 | while (!list_empty(&tgt->sess_works_list)) { | |
1460 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1461 | flush_scheduled_work(); | |
1462 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1463 | } | |
1464 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1465 | ||
1466 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a, | |
5d964837 | 1467 | "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count); |
2d70c103 NB |
1468 | |
1469 | wait_event(tgt->waitQ, test_tgt_sess_count(tgt)); | |
1470 | ||
1471 | /* Big hammer */ | |
ead03855 QT |
1472 | if (!ha->flags.host_shutting_down && |
1473 | (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))) | |
2d70c103 NB |
1474 | qlt_disable_vha(vha); |
1475 | ||
1476 | /* Wait for sessions to clear out (just in case) */ | |
1477 | wait_event(tgt->waitQ, test_tgt_sess_count(tgt)); | |
3c231bda | 1478 | return 0; |
2d70c103 NB |
1479 | } |
1480 | EXPORT_SYMBOL(qlt_stop_phase1); | |
1481 | ||
1482 | /* Called by tcm_qla2xxx configfs code */ | |
1483 | void qlt_stop_phase2(struct qla_tgt *tgt) | |
1484 | { | |
3a33dc95 | 1485 | scsi_qla_host_t *vha = tgt->vha; |
2d70c103 NB |
1486 | |
1487 | if (tgt->tgt_stopped) { | |
0e8cd71c | 1488 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f, |
2d70c103 NB |
1489 | "Already in tgt->tgt_stopped state\n"); |
1490 | dump_stack(); | |
1491 | return; | |
1492 | } | |
3a33dc95 QT |
1493 | if (!tgt->tgt_stop) { |
1494 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b, | |
1495 | "%s: phase1 stop is not completed\n", __func__); | |
1496 | dump_stack(); | |
1497 | return; | |
1498 | } | |
2d70c103 | 1499 | |
0e8cd71c | 1500 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
2d70c103 NB |
1501 | tgt->tgt_stop = 0; |
1502 | tgt->tgt_stopped = 1; | |
0e8cd71c | 1503 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
2d70c103 | 1504 | |
3a33dc95 | 1505 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n", |
2d70c103 NB |
1506 | tgt); |
1507 | } | |
1508 | EXPORT_SYMBOL(qlt_stop_phase2); | |
1509 | ||
1510 | /* Called from qlt_remove_target() -> qla2x00_remove_one() */ | |
fa492630 | 1511 | static void qlt_release(struct qla_tgt *tgt) |
2d70c103 | 1512 | { |
0e8cd71c | 1513 | scsi_qla_host_t *vha = tgt->vha; |
2d70c103 | 1514 | |
3a33dc95 QT |
1515 | if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop && |
1516 | !tgt->tgt_stopped) | |
1517 | qlt_stop_phase1(tgt); | |
1518 | ||
0e8cd71c | 1519 | if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped) |
2d70c103 NB |
1520 | qlt_stop_phase2(tgt); |
1521 | ||
0e8cd71c | 1522 | vha->vha_tgt.qla_tgt = NULL; |
2d70c103 | 1523 | |
0e8cd71c | 1524 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d, |
2d70c103 NB |
1525 | "Release of tgt %p finished\n", tgt); |
1526 | ||
1527 | kfree(tgt); | |
1528 | } | |
1529 | ||
1530 | /* ha->hardware_lock supposed to be held on entry */ | |
1531 | static int qlt_sched_sess_work(struct qla_tgt *tgt, int type, | |
1532 | const void *param, unsigned int param_size) | |
1533 | { | |
1534 | struct qla_tgt_sess_work_param *prm; | |
1535 | unsigned long flags; | |
1536 | ||
1537 | prm = kzalloc(sizeof(*prm), GFP_ATOMIC); | |
1538 | if (!prm) { | |
1539 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050, | |
1540 | "qla_target(%d): Unable to create session " | |
1541 | "work, command will be refused", 0); | |
1542 | return -ENOMEM; | |
1543 | } | |
1544 | ||
1545 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e, | |
1546 | "Scheduling work (type %d, prm %p)" | |
1547 | " to find session for param %p (size %d, tgt %p)\n", | |
1548 | type, prm, param, param_size, tgt); | |
1549 | ||
1550 | prm->type = type; | |
1551 | memcpy(&prm->tm_iocb, param, param_size); | |
1552 | ||
1553 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1554 | list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list); | |
1555 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1556 | ||
1557 | schedule_work(&tgt->sess_work); | |
1558 | ||
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | /* | |
1563 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1564 | */ | |
1565 | static void qlt_send_notify_ack(struct scsi_qla_host *vha, | |
1566 | struct imm_ntfy_from_isp *ntfy, | |
1567 | uint32_t add_flags, uint16_t resp_code, int resp_code_valid, | |
1568 | uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan) | |
1569 | { | |
1570 | struct qla_hw_data *ha = vha->hw; | |
1571 | request_t *pkt; | |
1572 | struct nack_to_isp *nack; | |
1573 | ||
ec7193e2 QT |
1574 | if (!ha->flags.fw_started) |
1575 | return; | |
1576 | ||
2d70c103 NB |
1577 | ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha); |
1578 | ||
1579 | /* Send marker if required */ | |
1580 | if (qlt_issue_marker(vha, 1) != QLA_SUCCESS) | |
1581 | return; | |
1582 | ||
1583 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); | |
1584 | if (!pkt) { | |
1585 | ql_dbg(ql_dbg_tgt, vha, 0xe049, | |
1586 | "qla_target(%d): %s failed: unable to allocate " | |
1587 | "request packet\n", vha->vp_idx, __func__); | |
1588 | return; | |
1589 | } | |
1590 | ||
0e8cd71c SK |
1591 | if (vha->vha_tgt.qla_tgt != NULL) |
1592 | vha->vha_tgt.qla_tgt->notify_ack_expected++; | |
2d70c103 NB |
1593 | |
1594 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
1595 | pkt->entry_count = 1; | |
1596 | ||
1597 | nack = (struct nack_to_isp *)pkt; | |
1598 | nack->ox_id = ntfy->ox_id; | |
1599 | ||
726b8548 | 1600 | nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE; |
2d70c103 NB |
1601 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; |
1602 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
1603 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
ad950360 | 1604 | cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); |
2d70c103 NB |
1605 | } |
1606 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
1607 | nack->u.isp24.status = ntfy->u.isp24.status; | |
1608 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
aa230bc5 | 1609 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; |
2d70c103 NB |
1610 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; |
1611 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
1612 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
1613 | nack->u.isp24.srr_flags = cpu_to_le16(srr_flags); | |
1614 | nack->u.isp24.srr_reject_code = srr_reject_code; | |
1615 | nack->u.isp24.srr_reject_code_expl = srr_explan; | |
1616 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
1617 | ||
1618 | ql_dbg(ql_dbg_tgt, vha, 0xe005, | |
1619 | "qla_target(%d): Sending 24xx Notify Ack %d\n", | |
1620 | vha->vp_idx, nack->u.isp24.status); | |
1621 | ||
63163e06 HM |
1622 | /* Memory Barrier */ |
1623 | wmb(); | |
2d70c103 NB |
1624 | qla2x00_start_iocbs(vha, vha->req); |
1625 | } | |
1626 | ||
1627 | /* | |
1628 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1629 | */ | |
1630 | static void qlt_24xx_send_abts_resp(struct scsi_qla_host *vha, | |
1631 | struct abts_recv_from_24xx *abts, uint32_t status, | |
1632 | bool ids_reversed) | |
1633 | { | |
1634 | struct qla_hw_data *ha = vha->hw; | |
1635 | struct abts_resp_to_24xx *resp; | |
1636 | uint32_t f_ctl; | |
1637 | uint8_t *p; | |
1638 | ||
1639 | ql_dbg(ql_dbg_tgt, vha, 0xe006, | |
1640 | "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n", | |
1641 | ha, abts, status); | |
1642 | ||
1643 | /* Send marker if required */ | |
1644 | if (qlt_issue_marker(vha, 1) != QLA_SUCCESS) | |
1645 | return; | |
1646 | ||
b6a029e1 | 1647 | resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(vha, NULL); |
2d70c103 NB |
1648 | if (!resp) { |
1649 | ql_dbg(ql_dbg_tgt, vha, 0xe04a, | |
1650 | "qla_target(%d): %s failed: unable to allocate " | |
1651 | "request packet", vha->vp_idx, __func__); | |
1652 | return; | |
1653 | } | |
1654 | ||
1655 | resp->entry_type = ABTS_RESP_24XX; | |
1656 | resp->entry_count = 1; | |
1657 | resp->nport_handle = abts->nport_handle; | |
1658 | resp->vp_index = vha->vp_idx; | |
1659 | resp->sof_type = abts->sof_type; | |
1660 | resp->exchange_address = abts->exchange_address; | |
1661 | resp->fcp_hdr_le = abts->fcp_hdr_le; | |
ad950360 | 1662 | f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP | |
2d70c103 NB |
1663 | F_CTL_LAST_SEQ | F_CTL_END_SEQ | |
1664 | F_CTL_SEQ_INITIATIVE); | |
1665 | p = (uint8_t *)&f_ctl; | |
1666 | resp->fcp_hdr_le.f_ctl[0] = *p++; | |
1667 | resp->fcp_hdr_le.f_ctl[1] = *p++; | |
1668 | resp->fcp_hdr_le.f_ctl[2] = *p; | |
1669 | if (ids_reversed) { | |
1670 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1671 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1672 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1673 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1674 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1675 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1676 | } else { | |
1677 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1678 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1679 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1680 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1681 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1682 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1683 | } | |
1684 | resp->exchange_addr_to_abort = abts->exchange_addr_to_abort; | |
1685 | if (status == FCP_TMF_CMPL) { | |
1686 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC; | |
1687 | resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID; | |
1688 | resp->payload.ba_acct.low_seq_cnt = 0x0000; | |
1689 | resp->payload.ba_acct.high_seq_cnt = 0xFFFF; | |
1690 | resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id; | |
1691 | resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id; | |
1692 | } else { | |
1693 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT; | |
1694 | resp->payload.ba_rjt.reason_code = | |
1695 | BA_RJT_REASON_CODE_UNABLE_TO_PERFORM; | |
1696 | /* Other bytes are zero */ | |
1697 | } | |
1698 | ||
0e8cd71c | 1699 | vha->vha_tgt.qla_tgt->abts_resp_expected++; |
2d70c103 | 1700 | |
63163e06 HM |
1701 | /* Memory Barrier */ |
1702 | wmb(); | |
2d70c103 NB |
1703 | qla2x00_start_iocbs(vha, vha->req); |
1704 | } | |
1705 | ||
1706 | /* | |
1707 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1708 | */ | |
1709 | static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha, | |
1710 | struct abts_resp_from_24xx_fw *entry) | |
1711 | { | |
1712 | struct ctio7_to_24xx *ctio; | |
1713 | ||
1714 | ql_dbg(ql_dbg_tgt, vha, 0xe007, | |
1715 | "Sending retry TERM EXCH CTIO7 (ha=%p)\n", vha->hw); | |
1716 | /* Send marker if required */ | |
1717 | if (qlt_issue_marker(vha, 1) != QLA_SUCCESS) | |
1718 | return; | |
1719 | ||
b6a029e1 | 1720 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(vha, NULL); |
2d70c103 NB |
1721 | if (ctio == NULL) { |
1722 | ql_dbg(ql_dbg_tgt, vha, 0xe04b, | |
1723 | "qla_target(%d): %s failed: unable to allocate " | |
1724 | "request packet\n", vha->vp_idx, __func__); | |
1725 | return; | |
1726 | } | |
1727 | ||
1728 | /* | |
1729 | * We've got on entrance firmware's response on by us generated | |
1730 | * ABTS response. So, in it ID fields are reversed. | |
1731 | */ | |
1732 | ||
1733 | ctio->entry_type = CTIO_TYPE7; | |
1734 | ctio->entry_count = 1; | |
1735 | ctio->nport_handle = entry->nport_handle; | |
1736 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
ad950360 | 1737 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
1738 | ctio->vp_index = vha->vp_idx; |
1739 | ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0]; | |
1740 | ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1]; | |
1741 | ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2]; | |
1742 | ctio->exchange_addr = entry->exchange_addr_to_abort; | |
ad950360 BVA |
1743 | ctio->u.status1.flags = cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | |
1744 | CTIO7_FLAGS_TERMINATE); | |
33a5fcee | 1745 | ctio->u.status1.ox_id = cpu_to_le16(entry->fcp_hdr_le.ox_id); |
2d70c103 | 1746 | |
63163e06 HM |
1747 | /* Memory Barrier */ |
1748 | wmb(); | |
2d70c103 NB |
1749 | qla2x00_start_iocbs(vha, vha->req); |
1750 | ||
1751 | qlt_24xx_send_abts_resp(vha, (struct abts_recv_from_24xx *)entry, | |
1752 | FCP_TMF_CMPL, true); | |
1753 | } | |
1754 | ||
8b2f5ff3 SN |
1755 | static int abort_cmd_for_tag(struct scsi_qla_host *vha, uint32_t tag) |
1756 | { | |
1757 | struct qla_tgt_sess_op *op; | |
1758 | struct qla_tgt_cmd *cmd; | |
8b631d87 | 1759 | unsigned long flags; |
8b2f5ff3 | 1760 | |
8b631d87 | 1761 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1762 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
1763 | if (tag == op->atio.u.isp24.exchange_addr) { | |
1764 | op->aborted = true; | |
8b631d87 | 1765 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1766 | return 1; |
1767 | } | |
1768 | } | |
1769 | ||
41dc529a QT |
1770 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { |
1771 | if (tag == op->atio.u.isp24.exchange_addr) { | |
1772 | op->aborted = true; | |
8b631d87 | 1773 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
41dc529a QT |
1774 | return 1; |
1775 | } | |
1776 | } | |
1777 | ||
8b2f5ff3 SN |
1778 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
1779 | if (tag == cmd->atio.u.isp24.exchange_addr) { | |
193b50b9 | 1780 | cmd->aborted = 1; |
8b631d87 | 1781 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1782 | return 1; |
1783 | } | |
1784 | } | |
8b631d87 | 1785 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 1786 | |
8b2f5ff3 SN |
1787 | return 0; |
1788 | } | |
1789 | ||
1790 | /* drop cmds for the given lun | |
1791 | * XXX only looks for cmds on the port through which lun reset was recieved | |
1792 | * XXX does not go through the list of other port (which may have cmds | |
1793 | * for the same lun) | |
1794 | */ | |
1795 | static void abort_cmds_for_lun(struct scsi_qla_host *vha, | |
f775bd14 | 1796 | u64 lun, uint8_t *s_id) |
8b2f5ff3 SN |
1797 | { |
1798 | struct qla_tgt_sess_op *op; | |
1799 | struct qla_tgt_cmd *cmd; | |
1800 | uint32_t key; | |
8b631d87 | 1801 | unsigned long flags; |
8b2f5ff3 SN |
1802 | |
1803 | key = sid_to_key(s_id); | |
8b631d87 | 1804 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1805 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
1806 | uint32_t op_key; | |
f775bd14 | 1807 | u64 op_lun; |
8b2f5ff3 SN |
1808 | |
1809 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
1810 | op_lun = scsilun_to_int( | |
1811 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
1812 | if (op_key == key && op_lun == lun) | |
1813 | op->aborted = true; | |
1814 | } | |
41dc529a QT |
1815 | |
1816 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
1817 | uint32_t op_key; | |
1818 | u64 op_lun; | |
1819 | ||
1820 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
1821 | op_lun = scsilun_to_int( | |
1822 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
1823 | if (op_key == key && op_lun == lun) | |
1824 | op->aborted = true; | |
1825 | } | |
1826 | ||
8b2f5ff3 SN |
1827 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
1828 | uint32_t cmd_key; | |
f775bd14 | 1829 | u64 cmd_lun; |
8b2f5ff3 SN |
1830 | |
1831 | cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
1832 | cmd_lun = scsilun_to_int( | |
1833 | (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun); | |
1834 | if (cmd_key == key && cmd_lun == lun) | |
193b50b9 | 1835 | cmd->aborted = 1; |
8b2f5ff3 | 1836 | } |
8b631d87 | 1837 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1838 | } |
1839 | ||
2d70c103 NB |
1840 | /* ha->hardware_lock supposed to be held on entry */ |
1841 | static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
5d964837 | 1842 | struct abts_recv_from_24xx *abts, struct fc_port *sess) |
2d70c103 NB |
1843 | { |
1844 | struct qla_hw_data *ha = vha->hw; | |
06e97b48 | 1845 | struct se_session *se_sess = sess->se_sess; |
2d70c103 | 1846 | struct qla_tgt_mgmt_cmd *mcmd; |
f775bd14 | 1847 | struct qla_tgt_cmd *cmd; |
06e97b48 | 1848 | struct se_cmd *se_cmd; |
2d70c103 | 1849 | int rc; |
06e97b48 | 1850 | bool found_lun = false; |
5d964837 | 1851 | unsigned long flags; |
06e97b48 | 1852 | |
5d964837 | 1853 | spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); |
06e97b48 | 1854 | list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) { |
649ee054 | 1855 | if (se_cmd->tag == abts->exchange_addr_to_abort) { |
06e97b48 SH |
1856 | found_lun = true; |
1857 | break; | |
1858 | } | |
1859 | } | |
5d964837 | 1860 | spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); |
06e97b48 | 1861 | |
8b2f5ff3 SN |
1862 | /* cmd not in LIO lists, look in qla list */ |
1863 | if (!found_lun) { | |
1864 | if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) { | |
1865 | /* send TASK_ABORT response immediately */ | |
1866 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_CMPL, false); | |
1867 | return 0; | |
1868 | } else { | |
1869 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf081, | |
1870 | "unable to find cmd in driver or LIO for tag 0x%x\n", | |
1871 | abts->exchange_addr_to_abort); | |
1872 | return -ENOENT; | |
1873 | } | |
1874 | } | |
2d70c103 NB |
1875 | |
1876 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f, | |
1877 | "qla_target(%d): task abort (tag=%d)\n", | |
1878 | vha->vp_idx, abts->exchange_addr_to_abort); | |
1879 | ||
1880 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
1881 | if (mcmd == NULL) { | |
1882 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051, | |
1883 | "qla_target(%d): %s: Allocation of ABORT cmd failed", | |
1884 | vha->vp_idx, __func__); | |
1885 | return -ENOMEM; | |
1886 | } | |
1887 | memset(mcmd, 0, sizeof(*mcmd)); | |
1888 | ||
f775bd14 | 1889 | cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); |
2d70c103 NB |
1890 | mcmd->sess = sess; |
1891 | memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts)); | |
80187f8e | 1892 | mcmd->reset_count = vha->hw->chip_reset; |
be92fc3f | 1893 | mcmd->tmr_func = QLA_TGT_ABTS; |
2d70c103 | 1894 | |
f775bd14 | 1895 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, cmd->unpacked_lun, mcmd->tmr_func, |
2d70c103 NB |
1896 | abts->exchange_addr_to_abort); |
1897 | if (rc != 0) { | |
1898 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf052, | |
1899 | "qla_target(%d): tgt_ops->handle_tmr()" | |
1900 | " failed: %d", vha->vp_idx, rc); | |
1901 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
1902 | return -EFAULT; | |
1903 | } | |
1904 | ||
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | /* | |
1909 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1910 | */ | |
1911 | static void qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
1912 | struct abts_recv_from_24xx *abts) | |
1913 | { | |
1914 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 1915 | struct fc_port *sess; |
2d70c103 NB |
1916 | uint32_t tag = abts->exchange_addr_to_abort; |
1917 | uint8_t s_id[3]; | |
1918 | int rc; | |
7560151b | 1919 | unsigned long flags; |
2d70c103 NB |
1920 | |
1921 | if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) { | |
1922 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053, | |
1923 | "qla_target(%d): ABTS: Abort Sequence not " | |
1924 | "supported\n", vha->vp_idx); | |
1925 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); | |
1926 | return; | |
1927 | } | |
1928 | ||
1929 | if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) { | |
1930 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010, | |
1931 | "qla_target(%d): ABTS: Unknown Exchange " | |
1932 | "Address received\n", vha->vp_idx); | |
1933 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); | |
1934 | return; | |
1935 | } | |
1936 | ||
1937 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011, | |
1938 | "qla_target(%d): task abort (s_id=%x:%x:%x, " | |
1939 | "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id[2], | |
1940 | abts->fcp_hdr_le.s_id[1], abts->fcp_hdr_le.s_id[0], tag, | |
1941 | le32_to_cpu(abts->fcp_hdr_le.parameter)); | |
1942 | ||
1943 | s_id[0] = abts->fcp_hdr_le.s_id[2]; | |
1944 | s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1945 | s_id[2] = abts->fcp_hdr_le.s_id[0]; | |
1946 | ||
7560151b | 1947 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1948 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); |
1949 | if (!sess) { | |
1950 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012, | |
1951 | "qla_target(%d): task abort for non-existant session\n", | |
1952 | vha->vp_idx); | |
0e8cd71c | 1953 | rc = qlt_sched_sess_work(vha->vha_tgt.qla_tgt, |
2d70c103 | 1954 | QLA_TGT_SESS_WORK_ABORT, abts, sizeof(*abts)); |
7560151b QT |
1955 | |
1956 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1957 | ||
2d70c103 NB |
1958 | if (rc != 0) { |
1959 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, | |
1960 | false); | |
1961 | } | |
1962 | return; | |
1963 | } | |
7560151b QT |
1964 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
1965 | ||
2d70c103 | 1966 | |
726b8548 | 1967 | if (sess->deleted) { |
e52a8b45 AP |
1968 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); |
1969 | return; | |
1970 | } | |
1971 | ||
2d70c103 NB |
1972 | rc = __qlt_24xx_handle_abts(vha, abts, sess); |
1973 | if (rc != 0) { | |
1974 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054, | |
1975 | "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n", | |
1976 | vha->vp_idx, rc); | |
1977 | qlt_24xx_send_abts_resp(vha, abts, FCP_TMF_REJECTED, false); | |
1978 | return; | |
1979 | } | |
1980 | } | |
1981 | ||
1982 | /* | |
1983 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1984 | */ | |
1985 | static void qlt_24xx_send_task_mgmt_ctio(struct scsi_qla_host *ha, | |
1986 | struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code) | |
1987 | { | |
1988 | struct atio_from_isp *atio = &mcmd->orig_iocb.atio; | |
1989 | struct ctio7_to_24xx *ctio; | |
33a5fcee | 1990 | uint16_t temp; |
2d70c103 NB |
1991 | |
1992 | ql_dbg(ql_dbg_tgt, ha, 0xe008, | |
1993 | "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n", | |
1994 | ha, atio, resp_code); | |
1995 | ||
1996 | /* Send marker if required */ | |
1997 | if (qlt_issue_marker(ha, 1) != QLA_SUCCESS) | |
1998 | return; | |
1999 | ||
2000 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(ha, NULL); | |
2001 | if (ctio == NULL) { | |
2002 | ql_dbg(ql_dbg_tgt, ha, 0xe04c, | |
2003 | "qla_target(%d): %s failed: unable to allocate " | |
2004 | "request packet\n", ha->vp_idx, __func__); | |
2005 | return; | |
2006 | } | |
2007 | ||
2008 | ctio->entry_type = CTIO_TYPE7; | |
2009 | ctio->entry_count = 1; | |
2010 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
2011 | ctio->nport_handle = mcmd->sess->loop_id; | |
ad950360 | 2012 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2013 | ctio->vp_index = ha->vp_idx; |
2014 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2015 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2016 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2017 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2018 | temp = (atio->u.isp24.attr << 9)| |
2019 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS; | |
2020 | ctio->u.status1.flags = cpu_to_le16(temp); | |
33a5fcee QT |
2021 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2022 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 | 2023 | ctio->u.status1.scsi_status = |
ad950360 BVA |
2024 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID); |
2025 | ctio->u.status1.response_len = cpu_to_le16(8); | |
e4b11b89 | 2026 | ctio->u.status1.sense_data[0] = resp_code; |
2d70c103 | 2027 | |
63163e06 HM |
2028 | /* Memory Barrier */ |
2029 | wmb(); | |
2d70c103 NB |
2030 | qla2x00_start_iocbs(ha, ha->req); |
2031 | } | |
2032 | ||
2033 | void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
2034 | { | |
2035 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
2036 | } | |
2037 | EXPORT_SYMBOL(qlt_free_mcmd); | |
2038 | ||
be25152c QT |
2039 | /* |
2040 | * ha->hardware_lock supposed to be held on entry. Might drop it, then | |
2041 | * reacquire | |
2042 | */ | |
2043 | void qlt_send_resp_ctio(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, | |
2044 | uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq) | |
2045 | { | |
2046 | struct atio_from_isp *atio = &cmd->atio; | |
2047 | struct ctio7_to_24xx *ctio; | |
2048 | uint16_t temp; | |
2049 | ||
2050 | ql_dbg(ql_dbg_tgt_dif, vha, 0x3066, | |
2051 | "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, " | |
2052 | "sense_key=%02x, asc=%02x, ascq=%02x", | |
2053 | vha, atio, scsi_status, sense_key, asc, ascq); | |
2054 | ||
2055 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL); | |
2056 | if (!ctio) { | |
2057 | ql_dbg(ql_dbg_async, vha, 0x3067, | |
2058 | "qla2x00t(%ld): %s failed: unable to allocate request packet", | |
2059 | vha->host_no, __func__); | |
2060 | goto out; | |
2061 | } | |
2062 | ||
2063 | ctio->entry_type = CTIO_TYPE7; | |
2064 | ctio->entry_count = 1; | |
2065 | ctio->handle = QLA_TGT_SKIP_HANDLE; | |
2066 | ctio->nport_handle = cmd->sess->loop_id; | |
2067 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); | |
2068 | ctio->vp_index = vha->vp_idx; | |
2069 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2070 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2071 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2072 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2073 | temp = (atio->u.isp24.attr << 9) | |
2074 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS; | |
2075 | ctio->u.status1.flags = cpu_to_le16(temp); | |
be25152c QT |
2076 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2077 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2078 | ctio->u.status1.scsi_status = | |
2079 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status); | |
2080 | ctio->u.status1.response_len = cpu_to_le16(18); | |
2081 | ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio)); | |
2082 | ||
2083 | if (ctio->u.status1.residual != 0) | |
2084 | ctio->u.status1.scsi_status |= | |
2085 | cpu_to_le16(SS_RESIDUAL_UNDER); | |
2086 | ||
2087 | /* Response code and sense key */ | |
2088 | put_unaligned_le32(((0x70 << 24) | (sense_key << 8)), | |
2089 | (&ctio->u.status1.sense_data)[0]); | |
2090 | /* Additional sense length */ | |
2091 | put_unaligned_le32(0x0a, (&ctio->u.status1.sense_data)[1]); | |
2092 | /* ASC and ASCQ */ | |
2093 | put_unaligned_le32(((asc << 24) | (ascq << 16)), | |
2094 | (&ctio->u.status1.sense_data)[3]); | |
2095 | ||
2096 | /* Memory Barrier */ | |
2097 | wmb(); | |
2098 | ||
2099 | qla2x00_start_iocbs(vha, vha->req); | |
2100 | out: | |
2101 | return; | |
2102 | } | |
2103 | ||
2d70c103 NB |
2104 | /* callback from target fabric module code */ |
2105 | void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd) | |
2106 | { | |
2107 | struct scsi_qla_host *vha = mcmd->sess->vha; | |
2108 | struct qla_hw_data *ha = vha->hw; | |
2109 | unsigned long flags; | |
2110 | ||
2111 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013, | |
2112 | "TM response mcmd (%p) status %#x state %#x", | |
2113 | mcmd, mcmd->fc_tm_rsp, mcmd->flags); | |
2114 | ||
2115 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
b6a029e1 | 2116 | |
3bb67df5 | 2117 | if (!vha->flags.online || mcmd->reset_count != ha->chip_reset) { |
b6a029e1 | 2118 | /* |
3bb67df5 | 2119 | * Either the port is not online or this request was from |
b6a029e1 AE |
2120 | * previous life, just abort the processing. |
2121 | */ | |
2122 | ql_dbg(ql_dbg_async, vha, 0xe100, | |
3bb67df5 DKU |
2123 | "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
2124 | vha->flags.online, qla2x00_reset_active(vha), | |
2125 | mcmd->reset_count, ha->chip_reset); | |
b6a029e1 AE |
2126 | ha->tgt.tgt_ops->free_mcmd(mcmd); |
2127 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2128 | return; | |
2129 | } | |
2130 | ||
726b8548 QT |
2131 | if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) { |
2132 | if (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
41dc529a QT |
2133 | ELS_LOGO || |
2134 | mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
2135 | ELS_PRLO || | |
2136 | mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
2137 | ELS_TPRLO) { | |
83548fe2 | 2138 | ql_dbg(ql_dbg_disc, vha, 0x2106, |
726b8548 QT |
2139 | "TM response logo %phC status %#x state %#x", |
2140 | mcmd->sess->port_name, mcmd->fc_tm_rsp, | |
2141 | mcmd->flags); | |
2142 | qlt_schedule_sess_for_deletion_lock(mcmd->sess); | |
2143 | } else { | |
2144 | qlt_send_notify_ack(vha, &mcmd->orig_iocb.imm_ntfy, | |
2145 | 0, 0, 0, 0, 0, 0); | |
2146 | } | |
2147 | } else { | |
d7236ac3 | 2148 | if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) |
2d70c103 NB |
2149 | qlt_24xx_send_abts_resp(vha, &mcmd->orig_iocb.abts, |
2150 | mcmd->fc_tm_rsp, false); | |
2151 | else | |
2152 | qlt_24xx_send_task_mgmt_ctio(vha, mcmd, | |
2153 | mcmd->fc_tm_rsp); | |
2154 | } | |
2155 | /* | |
2156 | * Make the callback for ->free_mcmd() to queue_work() and invoke | |
2157 | * target_put_sess_cmd() to drop cmd_kref to 1. The final | |
2158 | * target_put_sess_cmd() call will be made from TFO->check_stop_free() | |
2159 | * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd | |
2160 | * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() -> | |
2161 | * qlt_xmit_tm_rsp() returns here.. | |
2162 | */ | |
2163 | ha->tgt.tgt_ops->free_mcmd(mcmd); | |
2164 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2165 | } | |
2166 | EXPORT_SYMBOL(qlt_xmit_tm_rsp); | |
2167 | ||
2168 | /* No locks */ | |
2169 | static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm) | |
2170 | { | |
2171 | struct qla_tgt_cmd *cmd = prm->cmd; | |
2172 | ||
2173 | BUG_ON(cmd->sg_cnt == 0); | |
2174 | ||
2175 | prm->sg = (struct scatterlist *)cmd->sg; | |
2176 | prm->seg_cnt = pci_map_sg(prm->tgt->ha->pdev, cmd->sg, | |
2177 | cmd->sg_cnt, cmd->dma_data_direction); | |
2178 | if (unlikely(prm->seg_cnt == 0)) | |
2179 | goto out_err; | |
2180 | ||
2181 | prm->cmd->sg_mapped = 1; | |
2182 | ||
f83adb61 QT |
2183 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) { |
2184 | /* | |
2185 | * If greater than four sg entries then we need to allocate | |
2186 | * the continuation entries | |
2187 | */ | |
2188 | if (prm->seg_cnt > prm->tgt->datasegs_per_cmd) | |
2189 | prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt - | |
2190 | prm->tgt->datasegs_per_cmd, | |
2191 | prm->tgt->datasegs_per_cont); | |
2192 | } else { | |
2193 | /* DIF */ | |
2194 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2195 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2196 | prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz); | |
2197 | prm->tot_dsds = prm->seg_cnt; | |
2198 | } else | |
2199 | prm->tot_dsds = prm->seg_cnt; | |
2200 | ||
2201 | if (cmd->prot_sg_cnt) { | |
2202 | prm->prot_sg = cmd->prot_sg; | |
2203 | prm->prot_seg_cnt = pci_map_sg(prm->tgt->ha->pdev, | |
2204 | cmd->prot_sg, cmd->prot_sg_cnt, | |
2205 | cmd->dma_data_direction); | |
2206 | if (unlikely(prm->prot_seg_cnt == 0)) | |
2207 | goto out_err; | |
2208 | ||
2209 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2210 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2211 | /* Dif Bundling not support here */ | |
2212 | prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen, | |
2213 | cmd->blk_sz); | |
2214 | prm->tot_dsds += prm->prot_seg_cnt; | |
2215 | } else | |
2216 | prm->tot_dsds += prm->prot_seg_cnt; | |
2217 | } | |
2218 | } | |
2d70c103 | 2219 | |
2d70c103 NB |
2220 | return 0; |
2221 | ||
2222 | out_err: | |
2223 | ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe04d, | |
2224 | "qla_target(%d): PCI mapping failed: sg_cnt=%d", | |
2225 | 0, prm->cmd->sg_cnt); | |
2226 | return -1; | |
2227 | } | |
2228 | ||
f9b6721a | 2229 | static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) |
2d70c103 NB |
2230 | { |
2231 | struct qla_hw_data *ha = vha->hw; | |
2232 | ||
f9b6721a JE |
2233 | if (!cmd->sg_mapped) |
2234 | return; | |
2235 | ||
2d70c103 NB |
2236 | pci_unmap_sg(ha->pdev, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction); |
2237 | cmd->sg_mapped = 0; | |
f83adb61 QT |
2238 | |
2239 | if (cmd->prot_sg_cnt) | |
2240 | pci_unmap_sg(ha->pdev, cmd->prot_sg, cmd->prot_sg_cnt, | |
2241 | cmd->dma_data_direction); | |
2242 | ||
d5ff0eed JC |
2243 | if (!cmd->ctx) |
2244 | return; | |
2245 | ||
f83adb61 | 2246 | if (cmd->ctx_dsd_alloced) |
d5ff0eed | 2247 | qla2x00_clean_dsd_pool(ha, cmd->ctx); |
f83adb61 | 2248 | |
d5ff0eed | 2249 | dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma); |
2d70c103 NB |
2250 | } |
2251 | ||
2252 | static int qlt_check_reserve_free_req(struct scsi_qla_host *vha, | |
2253 | uint32_t req_cnt) | |
2254 | { | |
d29fb736 | 2255 | uint32_t cnt, cnt_in; |
2d70c103 NB |
2256 | |
2257 | if (vha->req->cnt < (req_cnt + 2)) { | |
75554b68 | 2258 | cnt = (uint16_t)RD_REG_DWORD(vha->req->req_q_out); |
d29fb736 | 2259 | cnt_in = (uint16_t)RD_REG_DWORD(vha->req->req_q_in); |
2d70c103 | 2260 | |
2d70c103 NB |
2261 | if (vha->req->ring_index < cnt) |
2262 | vha->req->cnt = cnt - vha->req->ring_index; | |
2263 | else | |
2264 | vha->req->cnt = vha->req->length - | |
2265 | (vha->req->ring_index - cnt); | |
2d70c103 | 2266 | |
bc7095a9 AB |
2267 | if (unlikely(vha->req->cnt < (req_cnt + 2))) { |
2268 | ql_dbg(ql_dbg_io, vha, 0x305a, | |
2269 | "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", | |
2270 | vha->vp_idx, vha->req->ring_index, | |
2271 | vha->req->cnt, req_cnt, cnt, cnt_in, | |
2272 | vha->req->length); | |
2273 | return -EAGAIN; | |
2274 | } | |
2d70c103 | 2275 | } |
bc7095a9 | 2276 | |
2d70c103 NB |
2277 | vha->req->cnt -= req_cnt; |
2278 | ||
2279 | return 0; | |
2280 | } | |
2281 | ||
2282 | /* | |
2283 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
2284 | */ | |
2285 | static inline void *qlt_get_req_pkt(struct scsi_qla_host *vha) | |
2286 | { | |
2287 | /* Adjust ring index. */ | |
2288 | vha->req->ring_index++; | |
2289 | if (vha->req->ring_index == vha->req->length) { | |
2290 | vha->req->ring_index = 0; | |
2291 | vha->req->ring_ptr = vha->req->ring; | |
2292 | } else { | |
2293 | vha->req->ring_ptr++; | |
2294 | } | |
2295 | return (cont_entry_t *)vha->req->ring_ptr; | |
2296 | } | |
2297 | ||
2298 | /* ha->hardware_lock supposed to be held on entry */ | |
2299 | static inline uint32_t qlt_make_handle(struct scsi_qla_host *vha) | |
2300 | { | |
2301 | struct qla_hw_data *ha = vha->hw; | |
2302 | uint32_t h; | |
2303 | ||
2304 | h = ha->tgt.current_handle; | |
2305 | /* always increment cmd handle */ | |
2306 | do { | |
2307 | ++h; | |
8d93f550 | 2308 | if (h > DEFAULT_OUTSTANDING_COMMANDS) |
2d70c103 NB |
2309 | h = 1; /* 0 is QLA_TGT_NULL_HANDLE */ |
2310 | if (h == ha->tgt.current_handle) { | |
667024a3 | 2311 | ql_dbg(ql_dbg_io, vha, 0x305b, |
2d70c103 NB |
2312 | "qla_target(%d): Ran out of " |
2313 | "empty cmd slots in ha %p\n", vha->vp_idx, ha); | |
2314 | h = QLA_TGT_NULL_HANDLE; | |
2315 | break; | |
2316 | } | |
2317 | } while ((h == QLA_TGT_NULL_HANDLE) || | |
2318 | (h == QLA_TGT_SKIP_HANDLE) || | |
2319 | (ha->tgt.cmds[h-1] != NULL)); | |
2320 | ||
2321 | if (h != QLA_TGT_NULL_HANDLE) | |
2322 | ha->tgt.current_handle = h; | |
2323 | ||
2324 | return h; | |
2325 | } | |
2326 | ||
2327 | /* ha->hardware_lock supposed to be held on entry */ | |
2328 | static int qlt_24xx_build_ctio_pkt(struct qla_tgt_prm *prm, | |
2329 | struct scsi_qla_host *vha) | |
2330 | { | |
2331 | uint32_t h; | |
2332 | struct ctio7_to_24xx *pkt; | |
2333 | struct qla_hw_data *ha = vha->hw; | |
2334 | struct atio_from_isp *atio = &prm->cmd->atio; | |
33a5fcee | 2335 | uint16_t temp; |
2d70c103 NB |
2336 | |
2337 | pkt = (struct ctio7_to_24xx *)vha->req->ring_ptr; | |
2338 | prm->pkt = pkt; | |
2339 | memset(pkt, 0, sizeof(*pkt)); | |
2340 | ||
2341 | pkt->entry_type = CTIO_TYPE7; | |
2342 | pkt->entry_count = (uint8_t)prm->req_cnt; | |
2343 | pkt->vp_index = vha->vp_idx; | |
2344 | ||
2345 | h = qlt_make_handle(vha); | |
2346 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { | |
2347 | /* | |
2348 | * CTIO type 7 from the firmware doesn't provide a way to | |
2349 | * know the initiator's LOOP ID, hence we can't find | |
2350 | * the session and, so, the command. | |
2351 | */ | |
2352 | return -EAGAIN; | |
2353 | } else | |
be25152c | 2354 | ha->tgt.cmds[h - 1] = prm->cmd; |
2d70c103 NB |
2355 | |
2356 | pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; | |
2357 | pkt->nport_handle = prm->cmd->loop_id; | |
ad950360 | 2358 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2359 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
2360 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2361 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2362 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2363 | temp = atio->u.isp24.attr << 9; |
2364 | pkt->u.status0.flags |= cpu_to_le16(temp); | |
33a5fcee QT |
2365 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2366 | pkt->u.status0.ox_id = cpu_to_le16(temp); | |
2d70c103 NB |
2367 | pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset); |
2368 | ||
2d70c103 NB |
2369 | return 0; |
2370 | } | |
2371 | ||
2372 | /* | |
2373 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2374 | * that there is sufficient amount of request entries to not drop it. | |
2375 | */ | |
2376 | static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm, | |
2377 | struct scsi_qla_host *vha) | |
2378 | { | |
2379 | int cnt; | |
2380 | uint32_t *dword_ptr; | |
2381 | int enable_64bit_addressing = prm->tgt->tgt_enable_64bit_addr; | |
2382 | ||
2383 | /* Build continuation packets */ | |
2384 | while (prm->seg_cnt > 0) { | |
2385 | cont_a64_entry_t *cont_pkt64 = | |
2386 | (cont_a64_entry_t *)qlt_get_req_pkt(vha); | |
2387 | ||
2388 | /* | |
2389 | * Make sure that from cont_pkt64 none of | |
2390 | * 64-bit specific fields used for 32-bit | |
2391 | * addressing. Cast to (cont_entry_t *) for | |
2392 | * that. | |
2393 | */ | |
2394 | ||
2395 | memset(cont_pkt64, 0, sizeof(*cont_pkt64)); | |
2396 | ||
2397 | cont_pkt64->entry_count = 1; | |
2398 | cont_pkt64->sys_define = 0; | |
2399 | ||
2400 | if (enable_64bit_addressing) { | |
2401 | cont_pkt64->entry_type = CONTINUE_A64_TYPE; | |
2402 | dword_ptr = | |
2403 | (uint32_t *)&cont_pkt64->dseg_0_address; | |
2404 | } else { | |
2405 | cont_pkt64->entry_type = CONTINUE_TYPE; | |
2406 | dword_ptr = | |
2407 | (uint32_t *)&((cont_entry_t *) | |
2408 | cont_pkt64)->dseg_0_address; | |
2409 | } | |
2410 | ||
2411 | /* Load continuation entry data segments */ | |
2412 | for (cnt = 0; | |
2413 | cnt < prm->tgt->datasegs_per_cont && prm->seg_cnt; | |
2414 | cnt++, prm->seg_cnt--) { | |
2415 | *dword_ptr++ = | |
2416 | cpu_to_le32(pci_dma_lo32 | |
2417 | (sg_dma_address(prm->sg))); | |
2418 | if (enable_64bit_addressing) { | |
2419 | *dword_ptr++ = | |
2420 | cpu_to_le32(pci_dma_hi32 | |
2421 | (sg_dma_address | |
2422 | (prm->sg))); | |
2423 | } | |
2424 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); | |
2425 | ||
2d70c103 NB |
2426 | prm->sg = sg_next(prm->sg); |
2427 | } | |
2428 | } | |
2429 | } | |
2430 | ||
2431 | /* | |
2432 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2433 | * that there is sufficient amount of request entries to not drop it. | |
2434 | */ | |
2435 | static void qlt_load_data_segments(struct qla_tgt_prm *prm, | |
2436 | struct scsi_qla_host *vha) | |
2437 | { | |
2438 | int cnt; | |
2439 | uint32_t *dword_ptr; | |
2440 | int enable_64bit_addressing = prm->tgt->tgt_enable_64bit_addr; | |
2441 | struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt; | |
2442 | ||
2d70c103 NB |
2443 | pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen); |
2444 | ||
2445 | /* Setup packet address segment pointer */ | |
2446 | dword_ptr = pkt24->u.status0.dseg_0_address; | |
2447 | ||
2448 | /* Set total data segment count */ | |
2449 | if (prm->seg_cnt) | |
2450 | pkt24->dseg_count = cpu_to_le16(prm->seg_cnt); | |
2451 | ||
2452 | if (prm->seg_cnt == 0) { | |
2453 | /* No data transfer */ | |
2454 | *dword_ptr++ = 0; | |
2455 | *dword_ptr = 0; | |
2456 | return; | |
2457 | } | |
2458 | ||
2459 | /* If scatter gather */ | |
2d70c103 NB |
2460 | |
2461 | /* Load command entry data segments */ | |
2462 | for (cnt = 0; | |
2463 | (cnt < prm->tgt->datasegs_per_cmd) && prm->seg_cnt; | |
2464 | cnt++, prm->seg_cnt--) { | |
2465 | *dword_ptr++ = | |
2466 | cpu_to_le32(pci_dma_lo32(sg_dma_address(prm->sg))); | |
2467 | if (enable_64bit_addressing) { | |
2468 | *dword_ptr++ = | |
2469 | cpu_to_le32(pci_dma_hi32( | |
2470 | sg_dma_address(prm->sg))); | |
2471 | } | |
2472 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); | |
2473 | ||
2d70c103 NB |
2474 | prm->sg = sg_next(prm->sg); |
2475 | } | |
2476 | ||
2477 | qlt_load_cont_data_segments(prm, vha); | |
2478 | } | |
2479 | ||
2480 | static inline int qlt_has_data(struct qla_tgt_cmd *cmd) | |
2481 | { | |
2482 | return cmd->bufflen > 0; | |
2483 | } | |
2484 | ||
be25152c QT |
2485 | static void qlt_print_dif_err(struct qla_tgt_prm *prm) |
2486 | { | |
2487 | struct qla_tgt_cmd *cmd; | |
2488 | struct scsi_qla_host *vha; | |
2489 | ||
2490 | /* asc 0x10=dif error */ | |
2491 | if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) { | |
2492 | cmd = prm->cmd; | |
2493 | vha = cmd->vha; | |
2494 | /* ASCQ */ | |
2495 | switch (prm->sense_buffer[13]) { | |
2496 | case 1: | |
83548fe2 | 2497 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b, |
be25152c QT |
2498 | "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2499 | "se_cmd=%p tag[%x]", | |
2500 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2501 | cmd->atio.u.isp24.exchange_addr); | |
2502 | break; | |
2503 | case 2: | |
83548fe2 | 2504 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c, |
be25152c QT |
2505 | "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2506 | "se_cmd=%p tag[%x]", | |
2507 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2508 | cmd->atio.u.isp24.exchange_addr); | |
2509 | break; | |
2510 | case 3: | |
83548fe2 | 2511 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f, |
be25152c QT |
2512 | "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2513 | "se_cmd=%p tag[%x]", | |
2514 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2515 | cmd->atio.u.isp24.exchange_addr); | |
2516 | break; | |
2517 | default: | |
83548fe2 | 2518 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe010, |
be25152c QT |
2519 | "BE detected Dif ERR: lba[%llx|%lld] len[%x] " |
2520 | "se_cmd=%p tag[%x]", | |
2521 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2522 | cmd->atio.u.isp24.exchange_addr); | |
2523 | break; | |
2524 | } | |
83548fe2 | 2525 | ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16); |
be25152c QT |
2526 | } |
2527 | } | |
2528 | ||
2d70c103 NB |
2529 | /* |
2530 | * Called without ha->hardware_lock held | |
2531 | */ | |
2532 | static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd, | |
2533 | struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status, | |
2534 | uint32_t *full_req_cnt) | |
2535 | { | |
2536 | struct qla_tgt *tgt = cmd->tgt; | |
2537 | struct scsi_qla_host *vha = tgt->vha; | |
2538 | struct qla_hw_data *ha = vha->hw; | |
2539 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
2540 | ||
2d70c103 NB |
2541 | prm->cmd = cmd; |
2542 | prm->tgt = tgt; | |
2543 | prm->rq_result = scsi_status; | |
2544 | prm->sense_buffer = &cmd->sense_buffer[0]; | |
2545 | prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER; | |
2546 | prm->sg = NULL; | |
2547 | prm->seg_cnt = -1; | |
2548 | prm->req_cnt = 1; | |
2549 | prm->add_status_pkt = 0; | |
2550 | ||
2d70c103 NB |
2551 | /* Send marker if required */ |
2552 | if (qlt_issue_marker(vha, 0) != QLA_SUCCESS) | |
2553 | return -EFAULT; | |
2554 | ||
2d70c103 NB |
2555 | if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) { |
2556 | if (qlt_pci_map_calc_cnt(prm) != 0) | |
2557 | return -EAGAIN; | |
2558 | } | |
2559 | ||
2560 | *full_req_cnt = prm->req_cnt; | |
2561 | ||
2562 | if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) { | |
2563 | prm->residual = se_cmd->residual_count; | |
667024a3 | 2564 | ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x305c, |
649ee054 BVA |
2565 | "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2566 | prm->residual, se_cmd->tag, | |
2567 | se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0, | |
2568 | cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2569 | prm->rq_result |= SS_RESIDUAL_UNDER; |
2570 | } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { | |
2571 | prm->residual = se_cmd->residual_count; | |
667024a3 | 2572 | ql_dbg(ql_dbg_io, vha, 0x305d, |
649ee054 BVA |
2573 | "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2574 | prm->residual, se_cmd->tag, se_cmd->t_task_cdb ? | |
2575 | se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2576 | prm->rq_result |= SS_RESIDUAL_OVER; |
2577 | } | |
2578 | ||
2579 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
2580 | /* | |
2581 | * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be | |
2582 | * ignored in *xmit_response() below | |
2583 | */ | |
2584 | if (qlt_has_data(cmd)) { | |
2585 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer) || | |
2586 | (IS_FWI2_CAPABLE(ha) && | |
2587 | (prm->rq_result != 0))) { | |
2588 | prm->add_status_pkt = 1; | |
2589 | (*full_req_cnt)++; | |
2590 | } | |
2591 | } | |
2592 | } | |
2593 | ||
2d70c103 NB |
2594 | return 0; |
2595 | } | |
2596 | ||
2597 | static inline int qlt_need_explicit_conf(struct qla_hw_data *ha, | |
2598 | struct qla_tgt_cmd *cmd, int sending_sense) | |
2599 | { | |
2600 | if (ha->tgt.enable_class_2) | |
2601 | return 0; | |
2602 | ||
2603 | if (sending_sense) | |
2604 | return cmd->conf_compl_supported; | |
2605 | else | |
2606 | return ha->tgt.enable_explicit_conf && | |
2607 | cmd->conf_compl_supported; | |
2608 | } | |
2609 | ||
2d70c103 NB |
2610 | static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio, |
2611 | struct qla_tgt_prm *prm) | |
2612 | { | |
2613 | prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len, | |
2614 | (uint32_t)sizeof(ctio->u.status1.sense_data)); | |
ad950360 | 2615 | ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS); |
2d70c103 | 2616 | if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 0)) { |
ad950360 | 2617 | ctio->u.status0.flags |= cpu_to_le16( |
2d70c103 NB |
2618 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2619 | CTIO7_FLAGS_CONFORM_REQ); | |
2620 | } | |
2621 | ctio->u.status0.residual = cpu_to_le32(prm->residual); | |
2622 | ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result); | |
2623 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) { | |
2624 | int i; | |
2625 | ||
2626 | if (qlt_need_explicit_conf(prm->tgt->ha, prm->cmd, 1)) { | |
df2e32c5 | 2627 | if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) { |
2d70c103 NB |
2628 | ql_dbg(ql_dbg_tgt, prm->cmd->vha, 0xe017, |
2629 | "Skipping EXPLICIT_CONFORM and " | |
2630 | "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ " | |
2631 | "non GOOD status\n"); | |
2632 | goto skip_explict_conf; | |
2633 | } | |
ad950360 | 2634 | ctio->u.status1.flags |= cpu_to_le16( |
2d70c103 NB |
2635 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2636 | CTIO7_FLAGS_CONFORM_REQ); | |
2637 | } | |
2638 | skip_explict_conf: | |
2639 | ctio->u.status1.flags &= | |
ad950360 | 2640 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2641 | ctio->u.status1.flags |= |
ad950360 | 2642 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 | 2643 | ctio->u.status1.scsi_status |= |
ad950360 | 2644 | cpu_to_le16(SS_SENSE_LEN_VALID); |
2d70c103 NB |
2645 | ctio->u.status1.sense_length = |
2646 | cpu_to_le16(prm->sense_buffer_len); | |
2647 | for (i = 0; i < prm->sense_buffer_len/4; i++) | |
2648 | ((uint32_t *)ctio->u.status1.sense_data)[i] = | |
2649 | cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]); | |
be25152c QT |
2650 | |
2651 | qlt_print_dif_err(prm); | |
2652 | ||
2d70c103 NB |
2653 | } else { |
2654 | ctio->u.status1.flags &= | |
ad950360 | 2655 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2656 | ctio->u.status1.flags |= |
ad950360 | 2657 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 NB |
2658 | ctio->u.status1.sense_length = 0; |
2659 | memset(ctio->u.status1.sense_data, 0, | |
2660 | sizeof(ctio->u.status1.sense_data)); | |
2661 | } | |
2662 | ||
2663 | /* Sense with len > 24, is it possible ??? */ | |
2664 | } | |
2665 | ||
f83adb61 QT |
2666 | static inline int |
2667 | qlt_hba_err_chk_enabled(struct se_cmd *se_cmd) | |
2668 | { | |
f83adb61 QT |
2669 | switch (se_cmd->prot_op) { |
2670 | case TARGET_PROT_DOUT_INSERT: | |
2671 | case TARGET_PROT_DIN_STRIP: | |
2672 | if (ql2xenablehba_err_chk >= 1) | |
2673 | return 1; | |
2674 | break; | |
2675 | case TARGET_PROT_DOUT_PASS: | |
2676 | case TARGET_PROT_DIN_PASS: | |
2677 | if (ql2xenablehba_err_chk >= 2) | |
2678 | return 1; | |
2679 | break; | |
2680 | case TARGET_PROT_DIN_INSERT: | |
2681 | case TARGET_PROT_DOUT_STRIP: | |
2682 | return 1; | |
2683 | default: | |
2684 | break; | |
2685 | } | |
2686 | return 0; | |
2687 | } | |
2688 | ||
be25152c QT |
2689 | static inline int |
2690 | qla_tgt_ref_mask_check(struct se_cmd *se_cmd) | |
2691 | { | |
2692 | switch (se_cmd->prot_op) { | |
2693 | case TARGET_PROT_DIN_INSERT: | |
2694 | case TARGET_PROT_DOUT_INSERT: | |
2695 | case TARGET_PROT_DIN_STRIP: | |
2696 | case TARGET_PROT_DOUT_STRIP: | |
2697 | case TARGET_PROT_DIN_PASS: | |
2698 | case TARGET_PROT_DOUT_PASS: | |
2699 | return 1; | |
2700 | default: | |
2701 | return 0; | |
2702 | } | |
2703 | return 0; | |
2704 | } | |
2705 | ||
f83adb61 | 2706 | /* |
be25152c | 2707 | * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command |
f83adb61 | 2708 | */ |
be25152c QT |
2709 | static void |
2710 | qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx, | |
2711 | uint16_t *pfw_prot_opts) | |
f83adb61 | 2712 | { |
be25152c | 2713 | struct se_cmd *se_cmd = &cmd->se_cmd; |
f83adb61 | 2714 | uint32_t lba = 0xffffffff & se_cmd->t_task_lba; |
be25152c QT |
2715 | scsi_qla_host_t *vha = cmd->tgt->vha; |
2716 | struct qla_hw_data *ha = vha->hw; | |
2717 | uint32_t t32 = 0; | |
f83adb61 | 2718 | |
be25152c QT |
2719 | /* |
2720 | * wait till Mode Sense/Select cmd, modepage Ah, subpage 2 | |
f83adb61 QT |
2721 | * have been immplemented by TCM, before AppTag is avail. |
2722 | * Look for modesense_handlers[] | |
2723 | */ | |
c7ee3bd4 | 2724 | ctx->app_tag = 0; |
f83adb61 QT |
2725 | ctx->app_tag_mask[0] = 0x0; |
2726 | ctx->app_tag_mask[1] = 0x0; | |
2727 | ||
be25152c QT |
2728 | if (IS_PI_UNINIT_CAPABLE(ha)) { |
2729 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
2730 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
2731 | *pfw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
2732 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
2733 | *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
2734 | } | |
2735 | ||
2736 | t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts); | |
2737 | ||
f83adb61 QT |
2738 | switch (se_cmd->prot_type) { |
2739 | case TARGET_DIF_TYPE0_PROT: | |
2740 | /* | |
be25152c QT |
2741 | * No check for ql2xenablehba_err_chk, as it |
2742 | * would be an I/O error if hba tag generation | |
2743 | * is not done. | |
f83adb61 QT |
2744 | */ |
2745 | ctx->ref_tag = cpu_to_le32(lba); | |
f83adb61 QT |
2746 | /* enable ALL bytes of the ref tag */ |
2747 | ctx->ref_tag_mask[0] = 0xff; | |
2748 | ctx->ref_tag_mask[1] = 0xff; | |
2749 | ctx->ref_tag_mask[2] = 0xff; | |
2750 | ctx->ref_tag_mask[3] = 0xff; | |
2751 | break; | |
f83adb61 | 2752 | case TARGET_DIF_TYPE1_PROT: |
be25152c QT |
2753 | /* |
2754 | * For TYPE 1 protection: 16 bit GUARD tag, 32 bit | |
2755 | * REF tag, and 16 bit app tag. | |
2756 | */ | |
2757 | ctx->ref_tag = cpu_to_le32(lba); | |
2758 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
2759 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
2760 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2761 | break; | |
2762 | } | |
2763 | /* enable ALL bytes of the ref tag */ | |
2764 | ctx->ref_tag_mask[0] = 0xff; | |
2765 | ctx->ref_tag_mask[1] = 0xff; | |
2766 | ctx->ref_tag_mask[2] = 0xff; | |
2767 | ctx->ref_tag_mask[3] = 0xff; | |
2768 | break; | |
f83adb61 | 2769 | case TARGET_DIF_TYPE2_PROT: |
be25152c QT |
2770 | /* |
2771 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF | |
2772 | * tag has to match LBA in CDB + N | |
2773 | */ | |
2774 | ctx->ref_tag = cpu_to_le32(lba); | |
2775 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
2776 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
2777 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2778 | break; | |
2779 | } | |
2780 | /* enable ALL bytes of the ref tag */ | |
2781 | ctx->ref_tag_mask[0] = 0xff; | |
2782 | ctx->ref_tag_mask[1] = 0xff; | |
2783 | ctx->ref_tag_mask[2] = 0xff; | |
2784 | ctx->ref_tag_mask[3] = 0xff; | |
2785 | break; | |
f83adb61 | 2786 | case TARGET_DIF_TYPE3_PROT: |
be25152c QT |
2787 | /* For TYPE 3 protection: 16 bit GUARD only */ |
2788 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2789 | ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] = | |
2790 | ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00; | |
2791 | break; | |
f83adb61 QT |
2792 | } |
2793 | } | |
2794 | ||
f83adb61 QT |
2795 | static inline int |
2796 | qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) | |
2797 | { | |
2798 | uint32_t *cur_dsd; | |
f83adb61 QT |
2799 | uint32_t transfer_length = 0; |
2800 | uint32_t data_bytes; | |
2801 | uint32_t dif_bytes; | |
2802 | uint8_t bundling = 1; | |
2803 | uint8_t *clr_ptr; | |
2804 | struct crc_context *crc_ctx_pkt = NULL; | |
2805 | struct qla_hw_data *ha; | |
2806 | struct ctio_crc2_to_fw *pkt; | |
2807 | dma_addr_t crc_ctx_dma; | |
2808 | uint16_t fw_prot_opts = 0; | |
2809 | struct qla_tgt_cmd *cmd = prm->cmd; | |
2810 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
2811 | uint32_t h; | |
2812 | struct atio_from_isp *atio = &prm->cmd->atio; | |
be25152c | 2813 | struct qla_tc_param tc; |
c7ee3bd4 | 2814 | uint16_t t16; |
f83adb61 | 2815 | |
f83adb61 QT |
2816 | ha = vha->hw; |
2817 | ||
2818 | pkt = (struct ctio_crc2_to_fw *)vha->req->ring_ptr; | |
2819 | prm->pkt = pkt; | |
2820 | memset(pkt, 0, sizeof(*pkt)); | |
2821 | ||
2822 | ql_dbg(ql_dbg_tgt, vha, 0xe071, | |
2823 | "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n", | |
2824 | vha->vp_idx, __func__, se_cmd, se_cmd->prot_op, | |
2825 | prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba); | |
2826 | ||
2827 | if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) || | |
2828 | (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP)) | |
2829 | bundling = 0; | |
2830 | ||
2831 | /* Compute dif len and adjust data len to incude protection */ | |
2832 | data_bytes = cmd->bufflen; | |
2833 | dif_bytes = (data_bytes / cmd->blk_sz) * 8; | |
2834 | ||
2835 | switch (se_cmd->prot_op) { | |
2836 | case TARGET_PROT_DIN_INSERT: | |
2837 | case TARGET_PROT_DOUT_STRIP: | |
2838 | transfer_length = data_bytes; | |
be25152c QT |
2839 | if (cmd->prot_sg_cnt) |
2840 | data_bytes += dif_bytes; | |
f83adb61 | 2841 | break; |
f83adb61 QT |
2842 | case TARGET_PROT_DIN_STRIP: |
2843 | case TARGET_PROT_DOUT_INSERT: | |
2844 | case TARGET_PROT_DIN_PASS: | |
2845 | case TARGET_PROT_DOUT_PASS: | |
2846 | transfer_length = data_bytes + dif_bytes; | |
2847 | break; | |
f83adb61 QT |
2848 | default: |
2849 | BUG(); | |
2850 | break; | |
2851 | } | |
2852 | ||
2853 | if (!qlt_hba_err_chk_enabled(se_cmd)) | |
2854 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ | |
2855 | /* HBA error checking enabled */ | |
2856 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
2857 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
2858 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
2859 | fw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
2860 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
2861 | fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
2862 | } | |
2863 | ||
2864 | switch (se_cmd->prot_op) { | |
2865 | case TARGET_PROT_DIN_INSERT: | |
2866 | case TARGET_PROT_DOUT_INSERT: | |
2867 | fw_prot_opts |= PO_MODE_DIF_INSERT; | |
2868 | break; | |
2869 | case TARGET_PROT_DIN_STRIP: | |
2870 | case TARGET_PROT_DOUT_STRIP: | |
2871 | fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
2872 | break; | |
2873 | case TARGET_PROT_DIN_PASS: | |
2874 | case TARGET_PROT_DOUT_PASS: | |
2875 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
2876 | /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */ | |
2877 | break; | |
2878 | default:/* Normal Request */ | |
2879 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
2880 | break; | |
2881 | } | |
2882 | ||
f83adb61 QT |
2883 | /* ---- PKT ---- */ |
2884 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
2885 | pkt->entry_type = CTIO_CRC2; | |
2886 | pkt->entry_count = 1; | |
2887 | pkt->vp_index = vha->vp_idx; | |
2888 | ||
2889 | h = qlt_make_handle(vha); | |
2890 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { | |
2891 | /* | |
2892 | * CTIO type 7 from the firmware doesn't provide a way to | |
2893 | * know the initiator's LOOP ID, hence we can't find | |
2894 | * the session and, so, the command. | |
2895 | */ | |
2896 | return -EAGAIN; | |
2897 | } else | |
2898 | ha->tgt.cmds[h-1] = prm->cmd; | |
2899 | ||
f83adb61 | 2900 | pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; |
be25152c | 2901 | pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id); |
ad950360 | 2902 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
f83adb61 QT |
2903 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
2904 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2905 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2906 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
c7ee3bd4 QT |
2907 | |
2908 | /* silence compile warning */ | |
2909 | t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); | |
2910 | pkt->ox_id = cpu_to_le16(t16); | |
2911 | ||
2912 | t16 = (atio->u.isp24.attr << 9); | |
2913 | pkt->flags |= cpu_to_le16(t16); | |
f83adb61 QT |
2914 | pkt->relative_offset = cpu_to_le32(prm->cmd->offset); |
2915 | ||
2916 | /* Set transfer direction */ | |
2917 | if (cmd->dma_data_direction == DMA_TO_DEVICE) | |
ad950360 | 2918 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN); |
f83adb61 | 2919 | else if (cmd->dma_data_direction == DMA_FROM_DEVICE) |
ad950360 | 2920 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT); |
f83adb61 | 2921 | |
f83adb61 QT |
2922 | pkt->dseg_count = prm->tot_dsds; |
2923 | /* Fibre channel byte count */ | |
2924 | pkt->transfer_length = cpu_to_le32(transfer_length); | |
2925 | ||
f83adb61 QT |
2926 | /* ----- CRC context -------- */ |
2927 | ||
2928 | /* Allocate CRC context from global pool */ | |
2929 | crc_ctx_pkt = cmd->ctx = | |
2930 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
2931 | ||
2932 | if (!crc_ctx_pkt) | |
2933 | goto crc_queuing_error; | |
2934 | ||
2935 | /* Zero out CTX area. */ | |
2936 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
2937 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
2938 | ||
2939 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
2940 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
2941 | ||
2942 | /* Set handle */ | |
2943 | crc_ctx_pkt->handle = pkt->handle; | |
2944 | ||
be25152c | 2945 | qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts); |
f83adb61 QT |
2946 | |
2947 | pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
2948 | pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
2949 | pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
2950 | ||
f83adb61 QT |
2951 | if (!bundling) { |
2952 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
2953 | } else { | |
2954 | /* | |
2955 | * Configure Bundling if we need to fetch interlaving | |
2956 | * protection PCI accesses | |
2957 | */ | |
2958 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
2959 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
2960 | crc_ctx_pkt->u.bundling.dseg_count = | |
2961 | cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt); | |
2962 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
2963 | } | |
2964 | ||
2965 | /* Finish the common fields of CRC pkt */ | |
2966 | crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz); | |
2967 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
2968 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
ad950360 | 2969 | crc_ctx_pkt->guard_seed = cpu_to_le16(0); |
f83adb61 | 2970 | |
be25152c QT |
2971 | memset((uint8_t *)&tc, 0 , sizeof(tc)); |
2972 | tc.vha = vha; | |
2973 | tc.blk_sz = cmd->blk_sz; | |
2974 | tc.bufflen = cmd->bufflen; | |
2975 | tc.sg = cmd->sg; | |
2976 | tc.prot_sg = cmd->prot_sg; | |
2977 | tc.ctx = crc_ctx_pkt; | |
2978 | tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced; | |
f83adb61 QT |
2979 | |
2980 | /* Walks data segments */ | |
ad950360 | 2981 | pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR); |
f83adb61 QT |
2982 | |
2983 | if (!bundling && prm->prot_seg_cnt) { | |
2984 | if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd, | |
be25152c | 2985 | prm->tot_dsds, &tc)) |
f83adb61 QT |
2986 | goto crc_queuing_error; |
2987 | } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd, | |
be25152c | 2988 | (prm->tot_dsds - prm->prot_seg_cnt), &tc)) |
f83adb61 QT |
2989 | goto crc_queuing_error; |
2990 | ||
2991 | if (bundling && prm->prot_seg_cnt) { | |
2992 | /* Walks dif segments */ | |
c7ee3bd4 | 2993 | pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA; |
f83adb61 QT |
2994 | |
2995 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
2996 | if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd, | |
be25152c | 2997 | prm->prot_seg_cnt, &tc)) |
f83adb61 QT |
2998 | goto crc_queuing_error; |
2999 | } | |
3000 | return QLA_SUCCESS; | |
3001 | ||
3002 | crc_queuing_error: | |
3003 | /* Cleanup will be performed by the caller */ | |
be25152c | 3004 | vha->hw->tgt.cmds[h - 1] = NULL; |
f83adb61 QT |
3005 | |
3006 | return QLA_FUNCTION_FAILED; | |
3007 | } | |
3008 | ||
2d70c103 NB |
3009 | /* |
3010 | * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and * | |
3011 | * QLA_TGT_XMIT_STATUS for >= 24xx silicon | |
3012 | */ | |
3013 | int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, | |
3014 | uint8_t scsi_status) | |
3015 | { | |
3016 | struct scsi_qla_host *vha = cmd->vha; | |
3017 | struct qla_hw_data *ha = vha->hw; | |
3018 | struct ctio7_to_24xx *pkt; | |
3019 | struct qla_tgt_prm prm; | |
3020 | uint32_t full_req_cnt = 0; | |
3021 | unsigned long flags = 0; | |
3022 | int res; | |
3023 | ||
a6ca8878 | 3024 | spin_lock_irqsave(&ha->hardware_lock, flags); |
726b8548 | 3025 | if (cmd->sess && cmd->sess->deleted) { |
a6ca8878 AP |
3026 | cmd->state = QLA_TGT_STATE_PROCESSED; |
3027 | if (cmd->sess->logout_completed) | |
3028 | /* no need to terminate. FW already freed exchange. */ | |
3029 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
3030 | else | |
a07100e0 | 3031 | qlt_send_term_exchange(vha, cmd, &cmd->atio, 1, 0); |
a6ca8878 AP |
3032 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3033 | return 0; | |
3034 | } | |
3035 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3036 | ||
2d70c103 | 3037 | memset(&prm, 0, sizeof(prm)); |
2d70c103 NB |
3038 | |
3039 | ql_dbg(ql_dbg_tgt, cmd->vha, 0xe018, | |
f83adb61 QT |
3040 | "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p]\n", |
3041 | (xmit_type & QLA_TGT_XMIT_STATUS) ? | |
3042 | 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction, | |
3043 | &cmd->se_cmd); | |
2d70c103 NB |
3044 | |
3045 | res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status, | |
3046 | &full_req_cnt); | |
3047 | if (unlikely(res != 0)) { | |
2d70c103 NB |
3048 | return res; |
3049 | } | |
3050 | ||
3051 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
3052 | ||
ce1025cd HM |
3053 | if (xmit_type == QLA_TGT_XMIT_STATUS) |
3054 | vha->tgt_counters.core_qla_snd_status++; | |
3055 | else | |
3056 | vha->tgt_counters.core_qla_que_buf++; | |
3057 | ||
ec7193e2 | 3058 | if (!ha->flags.fw_started || cmd->reset_count != ha->chip_reset) { |
b6a029e1 | 3059 | /* |
3bb67df5 | 3060 | * Either the port is not online or this request was from |
b6a029e1 AE |
3061 | * previous life, just abort the processing. |
3062 | */ | |
3063 | cmd->state = QLA_TGT_STATE_PROCESSED; | |
3064 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
3065 | ql_dbg(ql_dbg_async, vha, 0xe101, | |
3bb67df5 DKU |
3066 | "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3067 | vha->flags.online, qla2x00_reset_active(vha), | |
3068 | cmd->reset_count, ha->chip_reset); | |
b6a029e1 AE |
3069 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3070 | return 0; | |
3071 | } | |
3072 | ||
2d70c103 NB |
3073 | /* Does F/W have an IOCBs for this request */ |
3074 | res = qlt_check_reserve_free_req(vha, full_req_cnt); | |
3075 | if (unlikely(res)) | |
3076 | goto out_unmap_unlock; | |
3077 | ||
f83adb61 QT |
3078 | if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA)) |
3079 | res = qlt_build_ctio_crc2_pkt(&prm, vha); | |
3080 | else | |
3081 | res = qlt_24xx_build_ctio_pkt(&prm, vha); | |
810e30bc QT |
3082 | if (unlikely(res != 0)) { |
3083 | vha->req->cnt += full_req_cnt; | |
2d70c103 | 3084 | goto out_unmap_unlock; |
810e30bc | 3085 | } |
2d70c103 NB |
3086 | |
3087 | pkt = (struct ctio7_to_24xx *)prm.pkt; | |
3088 | ||
3089 | if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) { | |
3090 | pkt->u.status0.flags |= | |
ad950360 | 3091 | cpu_to_le16(CTIO7_FLAGS_DATA_IN | |
2d70c103 NB |
3092 | CTIO7_FLAGS_STATUS_MODE_0); |
3093 | ||
f83adb61 QT |
3094 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) |
3095 | qlt_load_data_segments(&prm, vha); | |
2d70c103 NB |
3096 | |
3097 | if (prm.add_status_pkt == 0) { | |
3098 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
3099 | pkt->u.status0.scsi_status = | |
3100 | cpu_to_le16(prm.rq_result); | |
3101 | pkt->u.status0.residual = | |
3102 | cpu_to_le32(prm.residual); | |
ad950360 | 3103 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 NB |
3104 | CTIO7_FLAGS_SEND_STATUS); |
3105 | if (qlt_need_explicit_conf(ha, cmd, 0)) { | |
3106 | pkt->u.status0.flags |= | |
ad950360 | 3107 | cpu_to_le16( |
2d70c103 NB |
3108 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
3109 | CTIO7_FLAGS_CONFORM_REQ); | |
3110 | } | |
3111 | } | |
3112 | ||
3113 | } else { | |
3114 | /* | |
3115 | * We have already made sure that there is sufficient | |
3116 | * amount of request entries to not drop HW lock in | |
3117 | * req_pkt(). | |
3118 | */ | |
3119 | struct ctio7_to_24xx *ctio = | |
3120 | (struct ctio7_to_24xx *)qlt_get_req_pkt(vha); | |
3121 | ||
667024a3 AE |
3122 | ql_dbg(ql_dbg_io, vha, 0x305e, |
3123 | "Building additional status packet 0x%p.\n", | |
3124 | ctio); | |
2d70c103 | 3125 | |
f83adb61 QT |
3126 | /* |
3127 | * T10Dif: ctio_crc2_to_fw overlay ontop of | |
3128 | * ctio7_to_24xx | |
3129 | */ | |
2d70c103 | 3130 | memcpy(ctio, pkt, sizeof(*ctio)); |
f83adb61 | 3131 | /* reset back to CTIO7 */ |
2d70c103 | 3132 | ctio->entry_count = 1; |
f83adb61 | 3133 | ctio->entry_type = CTIO_TYPE7; |
2d70c103 | 3134 | ctio->dseg_count = 0; |
ad950360 | 3135 | ctio->u.status1.flags &= ~cpu_to_le16( |
2d70c103 NB |
3136 | CTIO7_FLAGS_DATA_IN); |
3137 | ||
3138 | /* Real finish is ctio_m1's finish */ | |
3139 | pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK; | |
ad950360 | 3140 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 | 3141 | CTIO7_FLAGS_DONT_RET_CTIO); |
f83adb61 QT |
3142 | |
3143 | /* qlt_24xx_init_ctio_to_isp will correct | |
3144 | * all neccessary fields that's part of CTIO7. | |
3145 | * There should be no residual of CTIO-CRC2 data. | |
3146 | */ | |
2d70c103 NB |
3147 | qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio, |
3148 | &prm); | |
3149 | pr_debug("Status CTIO7: %p\n", ctio); | |
3150 | } | |
3151 | } else | |
3152 | qlt_24xx_init_ctio_to_isp(pkt, &prm); | |
3153 | ||
3154 | ||
3155 | cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */ | |
d564a372 | 3156 | cmd->cmd_sent_to_fw = 1; |
2d70c103 | 3157 | |
63163e06 HM |
3158 | /* Memory Barrier */ |
3159 | wmb(); | |
2d70c103 NB |
3160 | qla2x00_start_iocbs(vha, vha->req); |
3161 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3162 | ||
3163 | return 0; | |
3164 | ||
3165 | out_unmap_unlock: | |
f9b6721a | 3166 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
3167 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3168 | ||
3169 | return res; | |
3170 | } | |
3171 | EXPORT_SYMBOL(qlt_xmit_response); | |
3172 | ||
3173 | int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) | |
3174 | { | |
3175 | struct ctio7_to_24xx *pkt; | |
3176 | struct scsi_qla_host *vha = cmd->vha; | |
3177 | struct qla_hw_data *ha = vha->hw; | |
3178 | struct qla_tgt *tgt = cmd->tgt; | |
3179 | struct qla_tgt_prm prm; | |
3180 | unsigned long flags; | |
3181 | int res = 0; | |
3182 | ||
3183 | memset(&prm, 0, sizeof(prm)); | |
3184 | prm.cmd = cmd; | |
3185 | prm.tgt = tgt; | |
3186 | prm.sg = NULL; | |
3187 | prm.req_cnt = 1; | |
3188 | ||
3189 | /* Send marker if required */ | |
3190 | if (qlt_issue_marker(vha, 0) != QLA_SUCCESS) | |
3191 | return -EIO; | |
3192 | ||
2d70c103 NB |
3193 | /* Calculate number of entries and segments required */ |
3194 | if (qlt_pci_map_calc_cnt(&prm) != 0) | |
3195 | return -EAGAIN; | |
3196 | ||
3197 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
3198 | ||
ec7193e2 | 3199 | if (!ha->flags.fw_started || (cmd->reset_count != ha->chip_reset) || |
726b8548 | 3200 | (cmd->sess && cmd->sess->deleted)) { |
b6a029e1 | 3201 | /* |
3bb67df5 | 3202 | * Either the port is not online or this request was from |
b6a029e1 AE |
3203 | * previous life, just abort the processing. |
3204 | */ | |
3205 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
3206 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
3207 | ql_dbg(ql_dbg_async, vha, 0xe102, | |
3bb67df5 DKU |
3208 | "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3209 | vha->flags.online, qla2x00_reset_active(vha), | |
3210 | cmd->reset_count, ha->chip_reset); | |
b6a029e1 AE |
3211 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3212 | return 0; | |
3213 | } | |
3214 | ||
2d70c103 NB |
3215 | /* Does F/W have an IOCBs for this request */ |
3216 | res = qlt_check_reserve_free_req(vha, prm.req_cnt); | |
3217 | if (res != 0) | |
3218 | goto out_unlock_free_unmap; | |
f83adb61 QT |
3219 | if (cmd->se_cmd.prot_op) |
3220 | res = qlt_build_ctio_crc2_pkt(&prm, vha); | |
3221 | else | |
3222 | res = qlt_24xx_build_ctio_pkt(&prm, vha); | |
2d70c103 | 3223 | |
810e30bc QT |
3224 | if (unlikely(res != 0)) { |
3225 | vha->req->cnt += prm.req_cnt; | |
2d70c103 | 3226 | goto out_unlock_free_unmap; |
810e30bc QT |
3227 | } |
3228 | ||
2d70c103 | 3229 | pkt = (struct ctio7_to_24xx *)prm.pkt; |
ad950360 | 3230 | pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT | |
2d70c103 | 3231 | CTIO7_FLAGS_STATUS_MODE_0); |
f83adb61 QT |
3232 | |
3233 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) | |
3234 | qlt_load_data_segments(&prm, vha); | |
2d70c103 NB |
3235 | |
3236 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
d564a372 | 3237 | cmd->cmd_sent_to_fw = 1; |
2d70c103 | 3238 | |
63163e06 HM |
3239 | /* Memory Barrier */ |
3240 | wmb(); | |
2d70c103 NB |
3241 | qla2x00_start_iocbs(vha, vha->req); |
3242 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3243 | ||
3244 | return res; | |
3245 | ||
3246 | out_unlock_free_unmap: | |
f9b6721a | 3247 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
3248 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
3249 | ||
3250 | return res; | |
3251 | } | |
3252 | EXPORT_SYMBOL(qlt_rdy_to_xfer); | |
3253 | ||
f83adb61 QT |
3254 | |
3255 | /* | |
be25152c | 3256 | * it is assumed either hardware_lock or qpair lock is held. |
f83adb61 | 3257 | */ |
be25152c | 3258 | static void |
f83adb61 | 3259 | qlt_handle_dif_error(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, |
be25152c | 3260 | struct ctio_crc_from_fw *sts) |
f83adb61 QT |
3261 | { |
3262 | uint8_t *ap = &sts->actual_dif[0]; | |
3263 | uint8_t *ep = &sts->expected_dif[0]; | |
f83adb61 | 3264 | uint64_t lba = cmd->se_cmd.t_task_lba; |
be25152c QT |
3265 | uint8_t scsi_status, sense_key, asc, ascq; |
3266 | unsigned long flags; | |
f83adb61 | 3267 | |
be25152c | 3268 | cmd->trc_flags |= TRC_DIF_ERR; |
f83adb61 | 3269 | |
be25152c QT |
3270 | cmd->a_guard = be16_to_cpu(*(uint16_t *)(ap + 0)); |
3271 | cmd->a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2)); | |
3272 | cmd->a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4)); | |
f83adb61 | 3273 | |
be25152c QT |
3274 | cmd->e_guard = be16_to_cpu(*(uint16_t *)(ep + 0)); |
3275 | cmd->e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2)); | |
3276 | cmd->e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4)); | |
f83adb61 | 3277 | |
be25152c QT |
3278 | ql_dbg(ql_dbg_tgt_dif, vha, 0xf075, |
3279 | "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state); | |
f83adb61 | 3280 | |
be25152c | 3281 | scsi_status = sense_key = asc = ascq = 0; |
f83adb61 | 3282 | |
be25152c QT |
3283 | /* check appl tag */ |
3284 | if (cmd->e_app_tag != cmd->a_app_tag) { | |
83548fe2 QT |
3285 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d, |
3286 | "App Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]", | |
3287 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3288 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3289 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3290 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
be25152c QT |
3291 | |
3292 | cmd->dif_err_code = DIF_ERR_APP; | |
3293 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3294 | sense_key = ABORTED_COMMAND; | |
3295 | asc = 0x10; | |
3296 | ascq = 0x2; | |
f83adb61 QT |
3297 | } |
3298 | ||
3299 | /* check ref tag */ | |
be25152c | 3300 | if (cmd->e_ref_tag != cmd->a_ref_tag) { |
83548fe2 QT |
3301 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e, |
3302 | "Ref Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard[%x|%x] cmd=%p ox_id[%04x] ", | |
3303 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3304 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3305 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3306 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
be25152c QT |
3307 | |
3308 | cmd->dif_err_code = DIF_ERR_REF; | |
3309 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3310 | sense_key = ABORTED_COMMAND; | |
3311 | asc = 0x10; | |
3312 | ascq = 0x3; | |
f83adb61 QT |
3313 | goto out; |
3314 | } | |
3315 | ||
be25152c QT |
3316 | /* check guard */ |
3317 | if (cmd->e_guard != cmd->a_guard) { | |
83548fe2 QT |
3318 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe012, |
3319 | "Guard ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] Ref[%x|%x], App[%x|%x], Guard [%x|%x] cmd=%p ox_id[%04x]", | |
3320 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3321 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3322 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3323 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
3324 | ||
be25152c QT |
3325 | cmd->dif_err_code = DIF_ERR_GRD; |
3326 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3327 | sense_key = ABORTED_COMMAND; | |
3328 | asc = 0x10; | |
3329 | ascq = 0x1; | |
f83adb61 QT |
3330 | } |
3331 | out: | |
be25152c QT |
3332 | switch (cmd->state) { |
3333 | case QLA_TGT_STATE_NEED_DATA: | |
3334 | /* handle_data will load DIF error code */ | |
3335 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3336 | vha->hw->tgt.tgt_ops->handle_data(cmd); | |
3337 | break; | |
3338 | default: | |
3339 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
3340 | if (cmd->aborted) { | |
3341 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3342 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3343 | break; | |
3344 | } | |
3345 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
f83adb61 | 3346 | |
be25152c QT |
3347 | qlt_send_resp_ctio(vha, cmd, scsi_status, sense_key, asc, ascq); |
3348 | /* assume scsi status gets out on the wire. | |
3349 | * Will not wait for completion. | |
3350 | */ | |
3351 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3352 | break; | |
3353 | } | |
3354 | } | |
f83adb61 | 3355 | |
a6ca8878 AP |
3356 | /* If hardware_lock held on entry, might drop it, then reaquire */ |
3357 | /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ | |
3358 | static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3359 | struct imm_ntfy_from_isp *ntfy) | |
3360 | { | |
3361 | struct nack_to_isp *nack; | |
3362 | struct qla_hw_data *ha = vha->hw; | |
3363 | request_t *pkt; | |
3364 | int ret = 0; | |
3365 | ||
3366 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c, | |
3367 | "Sending TERM ELS CTIO (ha=%p)\n", ha); | |
3368 | ||
ec7193e2 | 3369 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); |
a6ca8878 AP |
3370 | if (pkt == NULL) { |
3371 | ql_dbg(ql_dbg_tgt, vha, 0xe080, | |
3372 | "qla_target(%d): %s failed: unable to allocate " | |
3373 | "request packet\n", vha->vp_idx, __func__); | |
3374 | return -ENOMEM; | |
3375 | } | |
3376 | ||
3377 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
3378 | pkt->entry_count = 1; | |
4f060736 | 3379 | pkt->handle = QLA_TGT_SKIP_HANDLE; |
a6ca8878 AP |
3380 | |
3381 | nack = (struct nack_to_isp *)pkt; | |
3382 | nack->ox_id = ntfy->ox_id; | |
3383 | ||
3384 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; | |
3385 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
3386 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
3387 | __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); | |
3388 | } | |
3389 | ||
3390 | /* terminate */ | |
3391 | nack->u.isp24.flags |= | |
3392 | __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE); | |
3393 | ||
3394 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
3395 | nack->u.isp24.status = ntfy->u.isp24.status; | |
3396 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
3397 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; | |
3398 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; | |
3399 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
3400 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
3401 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
3402 | ||
3403 | qla2x00_start_iocbs(vha, vha->req); | |
3404 | return ret; | |
3405 | } | |
3406 | ||
3407 | static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3408 | struct imm_ntfy_from_isp *imm, int ha_locked) | |
3409 | { | |
3410 | unsigned long flags = 0; | |
3411 | int rc; | |
3412 | ||
3413 | if (qlt_issue_marker(vha, ha_locked) < 0) | |
3414 | return; | |
3415 | ||
3416 | if (ha_locked) { | |
3417 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3418 | ||
3419 | #if 0 /* Todo */ | |
3420 | if (rc == -ENOMEM) | |
3421 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
91f42b33 BVA |
3422 | #else |
3423 | if (rc) { | |
3424 | } | |
a6ca8878 AP |
3425 | #endif |
3426 | goto done; | |
3427 | } | |
3428 | ||
3429 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
3430 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3431 | ||
3432 | #if 0 /* Todo */ | |
3433 | if (rc == -ENOMEM) | |
3434 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
3435 | #endif | |
3436 | ||
3437 | done: | |
3438 | if (!ha_locked) | |
3439 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
3440 | } | |
3441 | ||
83548fe2 QT |
3442 | /* |
3443 | * If hardware_lock held on entry, might drop it, then reaquire | |
3444 | * This function sends the appropriate CTIO to ISP 2xxx or 24xx | |
3445 | */ | |
2d70c103 NB |
3446 | static int __qlt_send_term_exchange(struct scsi_qla_host *vha, |
3447 | struct qla_tgt_cmd *cmd, | |
3448 | struct atio_from_isp *atio) | |
3449 | { | |
3450 | struct ctio7_to_24xx *ctio24; | |
3451 | struct qla_hw_data *ha = vha->hw; | |
3452 | request_t *pkt; | |
3453 | int ret = 0; | |
33a5fcee | 3454 | uint16_t temp; |
2d70c103 | 3455 | |
83548fe2 | 3456 | ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha); |
2d70c103 | 3457 | |
b6a029e1 | 3458 | pkt = (request_t *)qla2x00_alloc_iocbs_ready(vha, NULL); |
2d70c103 NB |
3459 | if (pkt == NULL) { |
3460 | ql_dbg(ql_dbg_tgt, vha, 0xe050, | |
3461 | "qla_target(%d): %s failed: unable to allocate " | |
3462 | "request packet\n", vha->vp_idx, __func__); | |
3463 | return -ENOMEM; | |
3464 | } | |
3465 | ||
3466 | if (cmd != NULL) { | |
3467 | if (cmd->state < QLA_TGT_STATE_PROCESSED) { | |
3468 | ql_dbg(ql_dbg_tgt, vha, 0xe051, | |
3469 | "qla_target(%d): Terminating cmd %p with " | |
3470 | "incorrect state %d\n", vha->vp_idx, cmd, | |
3471 | cmd->state); | |
3472 | } else | |
3473 | ret = 1; | |
3474 | } | |
3475 | ||
ce1025cd | 3476 | vha->tgt_counters.num_term_xchg_sent++; |
2d70c103 NB |
3477 | pkt->entry_count = 1; |
3478 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
3479 | ||
3480 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
3481 | ctio24->entry_type = CTIO_TYPE7; | |
71cdc079 | 3482 | ctio24->nport_handle = CTIO7_NHANDLE_UNRECOGNIZED; |
ad950360 | 3483 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
3484 | ctio24->vp_index = vha->vp_idx; |
3485 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
3486 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
3487 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
3488 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
3489 | temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 | |
3490 | CTIO7_FLAGS_TERMINATE; | |
3491 | ctio24->u.status1.flags = cpu_to_le16(temp); | |
33a5fcee QT |
3492 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
3493 | ctio24->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 NB |
3494 | |
3495 | /* Most likely, it isn't needed */ | |
3496 | ctio24->u.status1.residual = get_unaligned((uint32_t *) | |
3497 | &atio->u.isp24.fcp_cmnd.add_cdb[ | |
3498 | atio->u.isp24.fcp_cmnd.add_cdb_len]); | |
3499 | if (ctio24->u.status1.residual != 0) | |
3500 | ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER; | |
3501 | ||
63163e06 HM |
3502 | /* Memory Barrier */ |
3503 | wmb(); | |
2d70c103 NB |
3504 | qla2x00_start_iocbs(vha, vha->req); |
3505 | return ret; | |
3506 | } | |
3507 | ||
3508 | static void qlt_send_term_exchange(struct scsi_qla_host *vha, | |
a07100e0 QT |
3509 | struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked, |
3510 | int ul_abort) | |
2d70c103 | 3511 | { |
6bc85dd5 | 3512 | unsigned long flags = 0; |
2d70c103 NB |
3513 | int rc; |
3514 | ||
3515 | if (qlt_issue_marker(vha, ha_locked) < 0) | |
3516 | return; | |
3517 | ||
3518 | if (ha_locked) { | |
3519 | rc = __qlt_send_term_exchange(vha, cmd, atio); | |
33e79977 QT |
3520 | if (rc == -ENOMEM) |
3521 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
2d70c103 NB |
3522 | goto done; |
3523 | } | |
3524 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
3525 | rc = __qlt_send_term_exchange(vha, cmd, atio); | |
33e79977 QT |
3526 | if (rc == -ENOMEM) |
3527 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
d564a372 | 3528 | |
2d70c103 | 3529 | done: |
a07100e0 | 3530 | if (cmd && !ul_abort && !cmd->aborted) { |
6bc85dd5 HM |
3531 | if (cmd->sg_mapped) |
3532 | qlt_unmap_sg(vha, cmd); | |
2d70c103 NB |
3533 | vha->hw->tgt.tgt_ops->free_cmd(cmd); |
3534 | } | |
6bc85dd5 HM |
3535 | |
3536 | if (!ha_locked) | |
3537 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
3538 | ||
7b898542 | 3539 | return; |
2d70c103 NB |
3540 | } |
3541 | ||
33e79977 QT |
3542 | static void qlt_init_term_exchange(struct scsi_qla_host *vha) |
3543 | { | |
3544 | struct list_head free_list; | |
3545 | struct qla_tgt_cmd *cmd, *tcmd; | |
3546 | ||
3547 | vha->hw->tgt.leak_exchg_thresh_hold = | |
03e8c680 | 3548 | (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT; |
33e79977 QT |
3549 | |
3550 | cmd = tcmd = NULL; | |
3551 | if (!list_empty(&vha->hw->tgt.q_full_list)) { | |
3552 | INIT_LIST_HEAD(&free_list); | |
3553 | list_splice_init(&vha->hw->tgt.q_full_list, &free_list); | |
3554 | ||
3555 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
3556 | list_del(&cmd->cmd_list); | |
3557 | /* This cmd was never sent to TCM. There is no need | |
3558 | * to schedule free or call free_cmd | |
3559 | */ | |
3560 | qlt_free_cmd(cmd); | |
3561 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
3562 | } | |
3563 | } | |
3564 | vha->hw->tgt.num_qfull_cmds_dropped = 0; | |
3565 | } | |
3566 | ||
3567 | static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha) | |
3568 | { | |
3569 | uint32_t total_leaked; | |
3570 | ||
3571 | total_leaked = vha->hw->tgt.num_qfull_cmds_dropped; | |
3572 | ||
3573 | if (vha->hw->tgt.leak_exchg_thresh_hold && | |
3574 | (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) { | |
3575 | ||
3576 | ql_dbg(ql_dbg_tgt, vha, 0xe079, | |
3577 | "Chip reset due to exchange starvation: %d/%d.\n", | |
03e8c680 | 3578 | total_leaked, vha->hw->cur_fw_xcb_count); |
33e79977 QT |
3579 | |
3580 | if (IS_P3P_TYPE(vha->hw)) | |
3581 | set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); | |
3582 | else | |
3583 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
3584 | qla2xxx_wake_dpc(vha); | |
3585 | } | |
3586 | ||
3587 | } | |
3588 | ||
a07100e0 | 3589 | int qlt_abort_cmd(struct qla_tgt_cmd *cmd) |
7359df25 AP |
3590 | { |
3591 | struct qla_tgt *tgt = cmd->tgt; | |
3592 | struct scsi_qla_host *vha = tgt->vha; | |
3593 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
a07100e0 | 3594 | unsigned long flags; |
7359df25 AP |
3595 | |
3596 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014, | |
3597 | "qla_target(%d): terminating exchange for aborted cmd=%p " | |
3598 | "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd, | |
3599 | se_cmd->tag); | |
3600 | ||
a07100e0 QT |
3601 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
3602 | if (cmd->aborted) { | |
3603 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3604 | /* | |
3605 | * It's normal to see 2 calls in this path: | |
3606 | * 1) XFER Rdy completion + CMD_T_ABORT | |
3607 | * 2) TCM TMR - drain_state_list | |
3608 | */ | |
83548fe2 QT |
3609 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016, |
3610 | "multiple abort. %p transport_state %x, t_state %x, " | |
3611 | "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state, | |
3612 | cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags); | |
a07100e0 QT |
3613 | return EIO; |
3614 | } | |
193b50b9 | 3615 | cmd->aborted = 1; |
1eb42f96 | 3616 | cmd->trc_flags |= TRC_ABORT; |
a07100e0 | 3617 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
7359df25 | 3618 | |
a07100e0 QT |
3619 | qlt_send_term_exchange(vha, cmd, &cmd->atio, 0, 1); |
3620 | return 0; | |
7359df25 AP |
3621 | } |
3622 | EXPORT_SYMBOL(qlt_abort_cmd); | |
3623 | ||
2d70c103 NB |
3624 | void qlt_free_cmd(struct qla_tgt_cmd *cmd) |
3625 | { | |
5d964837 | 3626 | struct fc_port *sess = cmd->sess; |
51a07f84 | 3627 | |
f83adb61 QT |
3628 | ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074, |
3629 | "%s: se_cmd[%p] ox_id %04x\n", | |
3630 | __func__, &cmd->se_cmd, | |
3631 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
2d70c103 | 3632 | |
e07f8f65 SK |
3633 | BUG_ON(cmd->cmd_in_wq); |
3634 | ||
a07100e0 QT |
3635 | if (cmd->sg_mapped) |
3636 | qlt_unmap_sg(cmd->vha, cmd); | |
3637 | ||
33e79977 QT |
3638 | if (!cmd->q_full) |
3639 | qlt_decr_num_pend_cmds(cmd->vha); | |
3640 | ||
f83adb61 | 3641 | BUG_ON(cmd->sg_mapped); |
e07f8f65 | 3642 | cmd->jiffies_at_free = get_jiffies_64(); |
2d70c103 NB |
3643 | if (unlikely(cmd->free_sg)) |
3644 | kfree(cmd->sg); | |
51a07f84 NB |
3645 | |
3646 | if (!sess || !sess->se_sess) { | |
3647 | WARN_ON(1); | |
3648 | return; | |
3649 | } | |
e07f8f65 | 3650 | cmd->jiffies_at_free = get_jiffies_64(); |
51a07f84 | 3651 | percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); |
2d70c103 NB |
3652 | } |
3653 | EXPORT_SYMBOL(qlt_free_cmd); | |
3654 | ||
2d70c103 NB |
3655 | /* |
3656 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
3657 | */ | |
3658 | static int qlt_term_ctio_exchange(struct scsi_qla_host *vha, void *ctio, | |
3659 | struct qla_tgt_cmd *cmd, uint32_t status) | |
3660 | { | |
3661 | int term = 0; | |
3662 | ||
be25152c | 3663 | if (cmd->se_cmd.prot_op) |
83548fe2 | 3664 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe013, |
be25152c QT |
3665 | "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] " |
3666 | "se_cmd=%p tag[%x] op %#x/%s", | |
3667 | cmd->lba, cmd->lba, | |
3668 | cmd->num_blks, &cmd->se_cmd, | |
3669 | cmd->atio.u.isp24.exchange_addr, | |
3670 | cmd->se_cmd.prot_op, | |
3671 | prot_op_str(cmd->se_cmd.prot_op)); | |
3672 | ||
2d70c103 NB |
3673 | if (ctio != NULL) { |
3674 | struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio; | |
3675 | term = !(c->flags & | |
ad950360 | 3676 | cpu_to_le16(OF_TERM_EXCH)); |
2d70c103 NB |
3677 | } else |
3678 | term = 1; | |
3679 | ||
3680 | if (term) | |
a07100e0 | 3681 | qlt_send_term_exchange(vha, cmd, &cmd->atio, 1, 0); |
2d70c103 NB |
3682 | |
3683 | return term; | |
3684 | } | |
3685 | ||
3686 | /* ha->hardware_lock supposed to be held on entry */ | |
3687 | static inline struct qla_tgt_cmd *qlt_get_cmd(struct scsi_qla_host *vha, | |
3688 | uint32_t handle) | |
3689 | { | |
3690 | struct qla_hw_data *ha = vha->hw; | |
3691 | ||
3692 | handle--; | |
3693 | if (ha->tgt.cmds[handle] != NULL) { | |
3694 | struct qla_tgt_cmd *cmd = ha->tgt.cmds[handle]; | |
3695 | ha->tgt.cmds[handle] = NULL; | |
3696 | return cmd; | |
3697 | } else | |
3698 | return NULL; | |
3699 | } | |
3700 | ||
3701 | /* ha->hardware_lock supposed to be held on entry */ | |
3702 | static struct qla_tgt_cmd *qlt_ctio_to_cmd(struct scsi_qla_host *vha, | |
3703 | uint32_t handle, void *ctio) | |
3704 | { | |
3705 | struct qla_tgt_cmd *cmd = NULL; | |
3706 | ||
3707 | /* Clear out internal marks */ | |
3708 | handle &= ~(CTIO_COMPLETION_HANDLE_MARK | | |
3709 | CTIO_INTERMEDIATE_HANDLE_MARK); | |
3710 | ||
3711 | if (handle != QLA_TGT_NULL_HANDLE) { | |
667024a3 | 3712 | if (unlikely(handle == QLA_TGT_SKIP_HANDLE)) |
2d70c103 | 3713 | return NULL; |
667024a3 | 3714 | |
2d70c103 | 3715 | /* handle-1 is actually used */ |
8d93f550 | 3716 | if (unlikely(handle > DEFAULT_OUTSTANDING_COMMANDS)) { |
2d70c103 NB |
3717 | ql_dbg(ql_dbg_tgt, vha, 0xe052, |
3718 | "qla_target(%d): Wrong handle %x received\n", | |
3719 | vha->vp_idx, handle); | |
3720 | return NULL; | |
3721 | } | |
3722 | cmd = qlt_get_cmd(vha, handle); | |
3723 | if (unlikely(cmd == NULL)) { | |
3724 | ql_dbg(ql_dbg_tgt, vha, 0xe053, | |
3725 | "qla_target(%d): Suspicious: unable to " | |
3726 | "find the command with handle %x\n", vha->vp_idx, | |
3727 | handle); | |
3728 | return NULL; | |
3729 | } | |
3730 | } else if (ctio != NULL) { | |
3731 | /* We can't get loop ID from CTIO7 */ | |
3732 | ql_dbg(ql_dbg_tgt, vha, 0xe054, | |
3733 | "qla_target(%d): Wrong CTIO received: QLA24xx doesn't " | |
3734 | "support NULL handles\n", vha->vp_idx); | |
3735 | return NULL; | |
3736 | } | |
3737 | ||
3738 | return cmd; | |
3739 | } | |
3740 | ||
c0cb4496 AE |
3741 | /* hardware_lock should be held by caller. */ |
3742 | static void | |
3743 | qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) | |
3744 | { | |
3745 | struct qla_hw_data *ha = vha->hw; | |
3746 | uint32_t handle; | |
3747 | ||
3748 | if (cmd->sg_mapped) | |
3749 | qlt_unmap_sg(vha, cmd); | |
3750 | ||
3751 | handle = qlt_make_handle(vha); | |
3752 | ||
3753 | /* TODO: fix debug message type and ids. */ | |
3754 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
3755 | ql_dbg(ql_dbg_io, vha, 0xff00, | |
3756 | "HOST-ABORT: handle=%d, state=PROCESSED.\n", handle); | |
3757 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { | |
3758 | cmd->write_data_transferred = 0; | |
3759 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3760 | ||
3761 | ql_dbg(ql_dbg_io, vha, 0xff01, | |
3762 | "HOST-ABORT: handle=%d, state=DATA_IN.\n", handle); | |
3763 | ||
3764 | ha->tgt.tgt_ops->handle_data(cmd); | |
3765 | return; | |
c0cb4496 AE |
3766 | } else { |
3767 | ql_dbg(ql_dbg_io, vha, 0xff03, | |
3768 | "HOST-ABORT: handle=%d, state=BAD(%d).\n", handle, | |
3769 | cmd->state); | |
3770 | dump_stack(); | |
3771 | } | |
3772 | ||
1eb42f96 | 3773 | cmd->trc_flags |= TRC_FLUSH; |
c0cb4496 AE |
3774 | ha->tgt.tgt_ops->free_cmd(cmd); |
3775 | } | |
3776 | ||
3777 | void | |
3778 | qlt_host_reset_handler(struct qla_hw_data *ha) | |
3779 | { | |
3780 | struct qla_tgt_cmd *cmd; | |
3781 | unsigned long flags; | |
3782 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
3783 | scsi_qla_host_t *vha = NULL; | |
3784 | struct qla_tgt *tgt = base_vha->vha_tgt.qla_tgt; | |
3785 | uint32_t i; | |
3786 | ||
3787 | if (!base_vha->hw->tgt.tgt_ops) | |
3788 | return; | |
3789 | ||
3790 | if (!tgt || qla_ini_mode_enabled(base_vha)) { | |
3791 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003, | |
3792 | "Target mode disabled\n"); | |
3793 | return; | |
3794 | } | |
3795 | ||
3796 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xff10, | |
3797 | "HOST-ABORT-HNDLR: base_vha->dpc_flags=%lx.\n", | |
3798 | base_vha->dpc_flags); | |
3799 | ||
3800 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
3801 | for (i = 1; i < DEFAULT_OUTSTANDING_COMMANDS + 1; i++) { | |
3802 | cmd = qlt_get_cmd(base_vha, i); | |
3803 | if (!cmd) | |
3804 | continue; | |
3805 | /* ha->tgt.cmds entry is cleared by qlt_get_cmd. */ | |
3806 | vha = cmd->vha; | |
3807 | qlt_abort_cmd_on_host_reset(vha, cmd); | |
3808 | } | |
3809 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
3810 | } | |
3811 | ||
3812 | ||
2d70c103 NB |
3813 | /* |
3814 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
3815 | */ | |
3816 | static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, | |
3817 | uint32_t status, void *ctio) | |
3818 | { | |
3819 | struct qla_hw_data *ha = vha->hw; | |
3820 | struct se_cmd *se_cmd; | |
2d70c103 NB |
3821 | struct qla_tgt_cmd *cmd; |
3822 | ||
2d70c103 NB |
3823 | if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) { |
3824 | /* That could happen only in case of an error/reset/abort */ | |
3825 | if (status != CTIO_SUCCESS) { | |
3826 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d, | |
3827 | "Intermediate CTIO received" | |
3828 | " (status %x)\n", status); | |
3829 | } | |
3830 | return; | |
3831 | } | |
3832 | ||
3833 | cmd = qlt_ctio_to_cmd(vha, handle, ctio); | |
092e1dc3 | 3834 | if (cmd == NULL) |
2d70c103 | 3835 | return; |
092e1dc3 | 3836 | |
2d70c103 | 3837 | se_cmd = &cmd->se_cmd; |
d564a372 | 3838 | cmd->cmd_sent_to_fw = 0; |
2d70c103 | 3839 | |
f9b6721a | 3840 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
3841 | |
3842 | if (unlikely(status != CTIO_SUCCESS)) { | |
3843 | switch (status & 0xFFFF) { | |
3844 | case CTIO_LIP_RESET: | |
3845 | case CTIO_TARGET_RESET: | |
3846 | case CTIO_ABORTED: | |
7b898542 | 3847 | /* driver request abort via Terminate exchange */ |
2d70c103 NB |
3848 | case CTIO_TIMEOUT: |
3849 | case CTIO_INVALID_RX_ID: | |
3850 | /* They are OK */ | |
3851 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058, | |
3852 | "qla_target(%d): CTIO with " | |
3853 | "status %#x received, state %x, se_cmd %p, " | |
3854 | "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, " | |
3855 | "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx, | |
3856 | status, cmd->state, se_cmd); | |
3857 | break; | |
3858 | ||
3859 | case CTIO_PORT_LOGGED_OUT: | |
3860 | case CTIO_PORT_UNAVAILABLE: | |
71cdc079 | 3861 | { |
dacb5822 HM |
3862 | int logged_out = |
3863 | (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT; | |
3864 | ||
2d70c103 | 3865 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059, |
71cdc079 | 3866 | "qla_target(%d): CTIO with %s status %x " |
2d70c103 | 3867 | "received (state %x, se_cmd %p)\n", vha->vp_idx, |
dacb5822 | 3868 | logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE", |
2d70c103 | 3869 | status, cmd->state, se_cmd); |
2d70c103 | 3870 | |
71cdc079 AP |
3871 | if (logged_out && cmd->sess) { |
3872 | /* | |
3873 | * Session is already logged out, but we need | |
3874 | * to notify initiator, who's not aware of this | |
3875 | */ | |
3876 | cmd->sess->logout_on_delete = 0; | |
3877 | cmd->sess->send_els_logo = 1; | |
83548fe2 | 3878 | ql_dbg(ql_dbg_disc, vha, 0x20f8, |
726b8548 QT |
3879 | "%s %d %8phC post del sess\n", |
3880 | __func__, __LINE__, cmd->sess->port_name); | |
3881 | ||
3882 | qlt_schedule_sess_for_deletion_lock(cmd->sess); | |
71cdc079 AP |
3883 | } |
3884 | break; | |
3885 | } | |
f83adb61 QT |
3886 | case CTIO_DIF_ERROR: { |
3887 | struct ctio_crc_from_fw *crc = | |
3888 | (struct ctio_crc_from_fw *)ctio; | |
3889 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073, | |
be25152c QT |
3890 | "qla_target(%d): CTIO with DIF_ERROR status %x " |
3891 | "received (state %x, ulp_cmd %p) actual_dif[0x%llx] " | |
3892 | "expect_dif[0x%llx]\n", | |
f83adb61 QT |
3893 | vha->vp_idx, status, cmd->state, se_cmd, |
3894 | *((u64 *)&crc->actual_dif[0]), | |
3895 | *((u64 *)&crc->expected_dif[0])); | |
3896 | ||
be25152c QT |
3897 | qlt_handle_dif_error(vha, cmd, ctio); |
3898 | return; | |
f83adb61 | 3899 | } |
2d70c103 NB |
3900 | default: |
3901 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b, | |
f83adb61 | 3902 | "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n", |
2d70c103 NB |
3903 | vha->vp_idx, status, cmd->state, se_cmd); |
3904 | break; | |
3905 | } | |
3906 | ||
7b898542 | 3907 | |
193b50b9 | 3908 | /* "cmd->aborted" means |
7b898542 QT |
3909 | * cmd is already aborted/terminated, we don't |
3910 | * need to terminate again. The exchange is already | |
3911 | * cleaned up/freed at FW level. Just cleanup at driver | |
3912 | * level. | |
3913 | */ | |
3914 | if ((cmd->state != QLA_TGT_STATE_NEED_DATA) && | |
193b50b9 | 3915 | (!cmd->aborted)) { |
1eb42f96 | 3916 | cmd->trc_flags |= TRC_CTIO_ERR; |
2d70c103 NB |
3917 | if (qlt_term_ctio_exchange(vha, ctio, cmd, status)) |
3918 | return; | |
7b898542 | 3919 | } |
2d70c103 NB |
3920 | } |
3921 | ||
3922 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
1eb42f96 | 3923 | cmd->trc_flags |= TRC_CTIO_DONE; |
2d70c103 | 3924 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { |
2d70c103 NB |
3925 | cmd->state = QLA_TGT_STATE_DATA_IN; |
3926 | ||
52c82823 | 3927 | if (status == CTIO_SUCCESS) |
2d70c103 NB |
3928 | cmd->write_data_transferred = 1; |
3929 | ||
2d70c103 NB |
3930 | ha->tgt.tgt_ops->handle_data(cmd); |
3931 | return; | |
193b50b9 | 3932 | } else if (cmd->aborted) { |
1eb42f96 | 3933 | cmd->trc_flags |= TRC_CTIO_ABORTED; |
2d70c103 | 3934 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e, |
649ee054 | 3935 | "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag); |
2d70c103 | 3936 | } else { |
1eb42f96 | 3937 | cmd->trc_flags |= TRC_CTIO_STRANGE; |
2d70c103 NB |
3938 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c, |
3939 | "qla_target(%d): A command in state (%d) should " | |
3940 | "not return a CTIO complete\n", vha->vp_idx, cmd->state); | |
3941 | } | |
3942 | ||
7b898542 | 3943 | if (unlikely(status != CTIO_SUCCESS) && |
193b50b9 | 3944 | !cmd->aborted) { |
2d70c103 NB |
3945 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n"); |
3946 | dump_stack(); | |
3947 | } | |
3948 | ||
3949 | ha->tgt.tgt_ops->free_cmd(cmd); | |
3950 | } | |
3951 | ||
2d70c103 NB |
3952 | static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha, |
3953 | uint8_t task_codes) | |
3954 | { | |
3955 | int fcp_task_attr; | |
3956 | ||
3957 | switch (task_codes) { | |
3958 | case ATIO_SIMPLE_QUEUE: | |
68d81f40 | 3959 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
3960 | break; |
3961 | case ATIO_HEAD_OF_QUEUE: | |
68d81f40 | 3962 | fcp_task_attr = TCM_HEAD_TAG; |
2d70c103 NB |
3963 | break; |
3964 | case ATIO_ORDERED_QUEUE: | |
68d81f40 | 3965 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
3966 | break; |
3967 | case ATIO_ACA_QUEUE: | |
68d81f40 | 3968 | fcp_task_attr = TCM_ACA_TAG; |
2d70c103 NB |
3969 | break; |
3970 | case ATIO_UNTAGGED: | |
68d81f40 | 3971 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
3972 | break; |
3973 | default: | |
3974 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d, | |
3975 | "qla_target: unknown task code %x, use ORDERED instead\n", | |
3976 | task_codes); | |
68d81f40 | 3977 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
3978 | break; |
3979 | } | |
3980 | ||
3981 | return fcp_task_attr; | |
3982 | } | |
3983 | ||
5d964837 | 3984 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *, |
2d70c103 NB |
3985 | uint8_t *); |
3986 | /* | |
3987 | * Process context for I/O path into tcm_qla2xxx code | |
3988 | */ | |
51a07f84 | 3989 | static void __qlt_do_work(struct qla_tgt_cmd *cmd) |
2d70c103 | 3990 | { |
2d70c103 NB |
3991 | scsi_qla_host_t *vha = cmd->vha; |
3992 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 3993 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 3994 | struct fc_port *sess = cmd->sess; |
2d70c103 NB |
3995 | struct atio_from_isp *atio = &cmd->atio; |
3996 | unsigned char *cdb; | |
3997 | unsigned long flags; | |
3998 | uint32_t data_length; | |
3999 | int ret, fcp_task_attr, data_dir, bidi = 0; | |
4000 | ||
e07f8f65 | 4001 | cmd->cmd_in_wq = 0; |
1eb42f96 | 4002 | cmd->trc_flags |= TRC_DO_WORK; |
2d70c103 NB |
4003 | if (tgt->tgt_stop) |
4004 | goto out_term; | |
4005 | ||
193b50b9 | 4006 | if (cmd->aborted) { |
8b2f5ff3 SN |
4007 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082, |
4008 | "cmd with tag %u is aborted\n", | |
4009 | cmd->atio.u.isp24.exchange_addr); | |
4010 | goto out_term; | |
4011 | } | |
4012 | ||
a07100e0 | 4013 | spin_lock_init(&cmd->cmd_lock); |
2d70c103 | 4014 | cdb = &atio->u.isp24.fcp_cmnd.cdb[0]; |
649ee054 | 4015 | cmd->se_cmd.tag = atio->u.isp24.exchange_addr; |
2d70c103 NB |
4016 | cmd->unpacked_lun = scsilun_to_int( |
4017 | (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun); | |
4018 | ||
4019 | if (atio->u.isp24.fcp_cmnd.rddata && | |
4020 | atio->u.isp24.fcp_cmnd.wrdata) { | |
4021 | bidi = 1; | |
4022 | data_dir = DMA_TO_DEVICE; | |
4023 | } else if (atio->u.isp24.fcp_cmnd.rddata) | |
4024 | data_dir = DMA_FROM_DEVICE; | |
4025 | else if (atio->u.isp24.fcp_cmnd.wrdata) | |
4026 | data_dir = DMA_TO_DEVICE; | |
4027 | else | |
4028 | data_dir = DMA_NONE; | |
4029 | ||
4030 | fcp_task_attr = qlt_get_fcp_task_attr(vha, | |
4031 | atio->u.isp24.fcp_cmnd.task_attr); | |
4032 | data_length = be32_to_cpu(get_unaligned((uint32_t *) | |
4033 | &atio->u.isp24.fcp_cmnd.add_cdb[ | |
4034 | atio->u.isp24.fcp_cmnd.add_cdb_len])); | |
4035 | ||
51a07f84 NB |
4036 | ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length, |
4037 | fcp_task_attr, data_dir, bidi); | |
2d70c103 NB |
4038 | if (ret != 0) |
4039 | goto out_term; | |
4040 | /* | |
4041 | * Drop extra session reference from qla_tgt_handle_cmd_for_atio*( | |
4042 | */ | |
7560151b | 4043 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
5d964837 | 4044 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4045 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
4046 | return; |
4047 | ||
4048 | out_term: | |
667024a3 | 4049 | ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd); |
2d70c103 | 4050 | /* |
fae9eaf8 RD |
4051 | * cmd has not sent to target yet, so pass NULL as the second |
4052 | * argument to qlt_send_term_exchange() and free the memory here. | |
2d70c103 | 4053 | */ |
1eb42f96 | 4054 | cmd->trc_flags |= TRC_DO_WORK_ERR; |
2d70c103 | 4055 | spin_lock_irqsave(&ha->hardware_lock, flags); |
a07100e0 | 4056 | qlt_send_term_exchange(vha, NULL, &cmd->atio, 1, 0); |
33e79977 QT |
4057 | |
4058 | qlt_decr_num_pend_cmds(vha); | |
51a07f84 | 4059 | percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); |
51a07f84 | 4060 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
7560151b QT |
4061 | |
4062 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
5d964837 | 4063 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4064 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
51a07f84 NB |
4065 | } |
4066 | ||
4067 | static void qlt_do_work(struct work_struct *work) | |
4068 | { | |
4069 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
8b2f5ff3 SN |
4070 | scsi_qla_host_t *vha = cmd->vha; |
4071 | unsigned long flags; | |
4072 | ||
4073 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
4074 | list_del(&cmd->cmd_list); | |
4075 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
51a07f84 NB |
4076 | |
4077 | __qlt_do_work(cmd); | |
4078 | } | |
4079 | ||
4080 | static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, | |
5d964837 | 4081 | struct fc_port *sess, |
51a07f84 NB |
4082 | struct atio_from_isp *atio) |
4083 | { | |
4084 | struct se_session *se_sess = sess->se_sess; | |
4085 | struct qla_tgt_cmd *cmd; | |
4086 | int tag; | |
4087 | ||
4088 | tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); | |
4089 | if (tag < 0) | |
4090 | return NULL; | |
4091 | ||
4092 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
4093 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
4094 | ||
4095 | memcpy(&cmd->atio, atio, sizeof(*atio)); | |
4096 | cmd->state = QLA_TGT_STATE_NEW; | |
4097 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
33e79977 | 4098 | qlt_incr_num_pend_cmds(vha); |
51a07f84 NB |
4099 | cmd->vha = vha; |
4100 | cmd->se_cmd.map_tag = tag; | |
4101 | cmd->sess = sess; | |
4102 | cmd->loop_id = sess->loop_id; | |
4103 | cmd->conf_compl_supported = sess->conf_compl_supported; | |
4104 | ||
1eb42f96 | 4105 | cmd->trc_flags = 0; |
9fce1254 KS |
4106 | cmd->jiffies_at_alloc = get_jiffies_64(); |
4107 | ||
4108 | cmd->reset_count = vha->hw->chip_reset; | |
4109 | ||
51a07f84 NB |
4110 | return cmd; |
4111 | } | |
4112 | ||
4113 | static void qlt_send_busy(struct scsi_qla_host *, struct atio_from_isp *, | |
4114 | uint16_t); | |
4115 | ||
4116 | static void qlt_create_sess_from_atio(struct work_struct *work) | |
4117 | { | |
4118 | struct qla_tgt_sess_op *op = container_of(work, | |
4119 | struct qla_tgt_sess_op, work); | |
4120 | scsi_qla_host_t *vha = op->vha; | |
4121 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4122 | struct fc_port *sess; |
51a07f84 NB |
4123 | struct qla_tgt_cmd *cmd; |
4124 | unsigned long flags; | |
4125 | uint8_t *s_id = op->atio.u.isp24.fcp_hdr.s_id; | |
4126 | ||
8b2f5ff3 SN |
4127 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
4128 | list_del(&op->cmd_list); | |
4129 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
4130 | ||
4131 | if (op->aborted) { | |
4132 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf083, | |
4133 | "sess_op with tag %u is aborted\n", | |
4134 | op->atio.u.isp24.exchange_addr); | |
4135 | goto out_term; | |
4136 | } | |
4137 | ||
51a07f84 | 4138 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022, |
8b2f5ff3 SN |
4139 | "qla_target(%d): Unable to find wwn login" |
4140 | " (s_id %x:%x:%x), trying to create it manually\n", | |
4141 | vha->vp_idx, s_id[0], s_id[1], s_id[2]); | |
51a07f84 NB |
4142 | |
4143 | if (op->atio.u.raw.entry_count > 1) { | |
4144 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023, | |
8b2f5ff3 | 4145 | "Dropping multy entry atio %p\n", &op->atio); |
51a07f84 NB |
4146 | goto out_term; |
4147 | } | |
4148 | ||
51a07f84 NB |
4149 | sess = qlt_make_local_sess(vha, s_id); |
4150 | /* sess has an extra creation ref. */ | |
51a07f84 NB |
4151 | |
4152 | if (!sess) | |
4153 | goto out_term; | |
4154 | /* | |
4155 | * Now obtain a pre-allocated session tag using the original op->atio | |
4156 | * packet header, and dispatch into __qlt_do_work() using the existing | |
4157 | * process context. | |
4158 | */ | |
4159 | cmd = qlt_get_tag(vha, sess, &op->atio); | |
4160 | if (!cmd) { | |
4161 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
4162 | qlt_send_busy(vha, &op->atio, SAM_STAT_BUSY); | |
5d964837 | 4163 | ha->tgt.tgt_ops->put_sess(sess); |
51a07f84 NB |
4164 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
4165 | kfree(op); | |
4166 | return; | |
4167 | } | |
726b8548 | 4168 | |
51a07f84 | 4169 | /* |
e3dc0e31 | 4170 | * __qlt_do_work() will call qlt_put_sess() to release |
51a07f84 NB |
4171 | * the extra reference taken above by qlt_make_local_sess() |
4172 | */ | |
4173 | __qlt_do_work(cmd); | |
4174 | kfree(op); | |
4175 | return; | |
51a07f84 NB |
4176 | out_term: |
4177 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
a07100e0 | 4178 | qlt_send_term_exchange(vha, NULL, &op->atio, 1, 0); |
08234e3a | 4179 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
51a07f84 | 4180 | kfree(op); |
2d70c103 NB |
4181 | } |
4182 | ||
4183 | /* ha->hardware_lock supposed to be held on entry */ | |
4184 | static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, | |
4185 | struct atio_from_isp *atio) | |
4186 | { | |
51a07f84 | 4187 | struct qla_hw_data *ha = vha->hw; |
0e8cd71c | 4188 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 4189 | struct fc_port *sess; |
2d70c103 | 4190 | struct qla_tgt_cmd *cmd; |
5d964837 | 4191 | unsigned long flags; |
2d70c103 NB |
4192 | |
4193 | if (unlikely(tgt->tgt_stop)) { | |
667024a3 | 4194 | ql_dbg(ql_dbg_io, vha, 0x3061, |
2d70c103 NB |
4195 | "New command while device %p is shutting down\n", tgt); |
4196 | return -EFAULT; | |
4197 | } | |
4198 | ||
51a07f84 NB |
4199 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id); |
4200 | if (unlikely(!sess)) { | |
4201 | struct qla_tgt_sess_op *op = kzalloc(sizeof(struct qla_tgt_sess_op), | |
4202 | GFP_ATOMIC); | |
4203 | if (!op) | |
4204 | return -ENOMEM; | |
4205 | ||
4206 | memcpy(&op->atio, atio, sizeof(*atio)); | |
78c2106a | 4207 | op->vha = vha; |
8b2f5ff3 | 4208 | |
8b631d87 | 4209 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4210 | list_add_tail(&op->cmd_list, &vha->qla_sess_op_cmd_list); |
8b631d87 | 4211 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4212 | |
51a07f84 NB |
4213 | INIT_WORK(&op->work, qlt_create_sess_from_atio); |
4214 | queue_work(qla_tgt_wq, &op->work); | |
4215 | return 0; | |
4216 | } | |
e52a8b45 AP |
4217 | |
4218 | /* Another WWN used to have our s_id. Our PLOGI scheduled its | |
4219 | * session deletion, but it's still in sess_del_work wq */ | |
726b8548 | 4220 | if (sess->deleted) { |
83548fe2 | 4221 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002, |
e52a8b45 AP |
4222 | "New command while old session %p is being deleted\n", |
4223 | sess); | |
4224 | return -EFAULT; | |
4225 | } | |
4226 | ||
51a07f84 NB |
4227 | /* |
4228 | * Do kref_get() before returning + dropping qla_hw_data->hardware_lock. | |
4229 | */ | |
726b8548 | 4230 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 4231 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004, |
726b8548 QT |
4232 | "%s: kref_get fail, %8phC oxid %x \n", |
4233 | __func__, sess->port_name, | |
4234 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
4235 | return -EFAULT; | |
4236 | } | |
51a07f84 NB |
4237 | |
4238 | cmd = qlt_get_tag(vha, sess, atio); | |
2d70c103 | 4239 | if (!cmd) { |
667024a3 | 4240 | ql_dbg(ql_dbg_io, vha, 0x3062, |
2d70c103 | 4241 | "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx); |
5d964837 QT |
4242 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
4243 | ha->tgt.tgt_ops->put_sess(sess); | |
4244 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
4245 | return -ENOMEM; |
4246 | } | |
4247 | ||
e07f8f65 | 4248 | cmd->cmd_in_wq = 1; |
1eb42f96 | 4249 | cmd->trc_flags |= TRC_NEW_CMD; |
5327c7db QT |
4250 | cmd->se_cmd.cpuid = ha->msix_count ? |
4251 | ha->tgt.rspq_vector_cpuid : WORK_CPU_UNBOUND; | |
8b2f5ff3 | 4252 | |
726b8548 | 4253 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4254 | list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list); |
726b8548 | 4255 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4256 | |
2d70c103 | 4257 | INIT_WORK(&cmd->work, qlt_do_work); |
fb3269ba | 4258 | if (ha->msix_count) { |
fb3269ba QT |
4259 | if (cmd->atio.u.isp24.fcp_cmnd.rddata) |
4260 | queue_work_on(smp_processor_id(), qla_tgt_wq, | |
4261 | &cmd->work); | |
4262 | else | |
4263 | queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, | |
4264 | &cmd->work); | |
4265 | } else { | |
4266 | queue_work(qla_tgt_wq, &cmd->work); | |
4267 | } | |
2d70c103 NB |
4268 | return 0; |
4269 | ||
4270 | } | |
4271 | ||
4272 | /* ha->hardware_lock supposed to be held on entry */ | |
5d964837 | 4273 | static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, |
2d70c103 NB |
4274 | int fn, void *iocb, int flags) |
4275 | { | |
4276 | struct scsi_qla_host *vha = sess->vha; | |
4277 | struct qla_hw_data *ha = vha->hw; | |
4278 | struct qla_tgt_mgmt_cmd *mcmd; | |
8b2f5ff3 | 4279 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; |
2d70c103 | 4280 | int res; |
2d70c103 NB |
4281 | |
4282 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4283 | if (!mcmd) { | |
4284 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009, | |
4285 | "qla_target(%d): Allocation of management " | |
4286 | "command failed, some commands and their data could " | |
4287 | "leak\n", vha->vp_idx); | |
4288 | return -ENOMEM; | |
4289 | } | |
4290 | memset(mcmd, 0, sizeof(*mcmd)); | |
4291 | mcmd->sess = sess; | |
4292 | ||
4293 | if (iocb) { | |
4294 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4295 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4296 | } | |
4297 | mcmd->tmr_func = fn; | |
4298 | mcmd->flags = flags; | |
b6a029e1 | 4299 | mcmd->reset_count = vha->hw->chip_reset; |
2d70c103 NB |
4300 | |
4301 | switch (fn) { | |
2d70c103 | 4302 | case QLA_TGT_LUN_RESET: |
be92fc3f QT |
4303 | abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id); |
4304 | break; | |
2d70c103 NB |
4305 | } |
4306 | ||
be92fc3f | 4307 | res = ha->tgt.tgt_ops->handle_tmr(mcmd, lun, mcmd->tmr_func, 0); |
2d70c103 NB |
4308 | if (res != 0) { |
4309 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000b, | |
4310 | "qla_target(%d): tgt.tgt_ops->handle_tmr() failed: %d\n", | |
4311 | sess->vha->vp_idx, res); | |
4312 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
4313 | return -EFAULT; | |
4314 | } | |
4315 | ||
4316 | return 0; | |
4317 | } | |
4318 | ||
4319 | /* ha->hardware_lock supposed to be held on entry */ | |
4320 | static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb) | |
4321 | { | |
4322 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4323 | struct qla_hw_data *ha = vha->hw; | |
4324 | struct qla_tgt *tgt; | |
5d964837 | 4325 | struct fc_port *sess; |
f775bd14 | 4326 | u64 unpacked_lun; |
52c82823 | 4327 | int fn; |
7560151b | 4328 | unsigned long flags; |
2d70c103 | 4329 | |
0e8cd71c | 4330 | tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 4331 | |
2d70c103 | 4332 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
7560151b QT |
4333 | |
4334 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
4335 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, |
4336 | a->u.isp24.fcp_hdr.s_id); | |
7560151b QT |
4337 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4338 | ||
f775bd14 QT |
4339 | unpacked_lun = |
4340 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
2d70c103 NB |
4341 | |
4342 | if (!sess) { | |
4343 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf024, | |
4344 | "qla_target(%d): task mgmt fn 0x%x for " | |
4345 | "non-existant session\n", vha->vp_idx, fn); | |
4346 | return qlt_sched_sess_work(tgt, QLA_TGT_SESS_WORK_TM, iocb, | |
4347 | sizeof(struct atio_from_isp)); | |
4348 | } | |
4349 | ||
726b8548 | 4350 | if (sess->deleted) |
e52a8b45 AP |
4351 | return -EFAULT; |
4352 | ||
2d70c103 NB |
4353 | return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); |
4354 | } | |
4355 | ||
4356 | /* ha->hardware_lock supposed to be held on entry */ | |
4357 | static int __qlt_abort_task(struct scsi_qla_host *vha, | |
5d964837 | 4358 | struct imm_ntfy_from_isp *iocb, struct fc_port *sess) |
2d70c103 NB |
4359 | { |
4360 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4361 | struct qla_hw_data *ha = vha->hw; | |
4362 | struct qla_tgt_mgmt_cmd *mcmd; | |
f775bd14 | 4363 | u64 unpacked_lun; |
2d70c103 NB |
4364 | int rc; |
4365 | ||
4366 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4367 | if (mcmd == NULL) { | |
4368 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f, | |
4369 | "qla_target(%d): %s: Allocation of ABORT cmd failed\n", | |
4370 | vha->vp_idx, __func__); | |
4371 | return -ENOMEM; | |
4372 | } | |
4373 | memset(mcmd, 0, sizeof(*mcmd)); | |
4374 | ||
4375 | mcmd->sess = sess; | |
4376 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4377 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4378 | ||
f775bd14 QT |
4379 | unpacked_lun = |
4380 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
80187f8e | 4381 | mcmd->reset_count = vha->hw->chip_reset; |
be92fc3f | 4382 | mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK; |
2d70c103 | 4383 | |
be92fc3f | 4384 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func, |
2d70c103 NB |
4385 | le16_to_cpu(iocb->u.isp2x.seq_id)); |
4386 | if (rc != 0) { | |
4387 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060, | |
4388 | "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n", | |
4389 | vha->vp_idx, rc); | |
4390 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
4391 | return -EFAULT; | |
4392 | } | |
4393 | ||
4394 | return 0; | |
4395 | } | |
4396 | ||
4397 | /* ha->hardware_lock supposed to be held on entry */ | |
4398 | static int qlt_abort_task(struct scsi_qla_host *vha, | |
4399 | struct imm_ntfy_from_isp *iocb) | |
4400 | { | |
4401 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4402 | struct fc_port *sess; |
2d70c103 | 4403 | int loop_id; |
7560151b | 4404 | unsigned long flags; |
2d70c103 NB |
4405 | |
4406 | loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb); | |
4407 | ||
7560151b | 4408 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 4409 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b QT |
4410 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4411 | ||
2d70c103 NB |
4412 | if (sess == NULL) { |
4413 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025, | |
4414 | "qla_target(%d): task abort for unexisting " | |
4415 | "session\n", vha->vp_idx); | |
0e8cd71c | 4416 | return qlt_sched_sess_work(vha->vha_tgt.qla_tgt, |
2d70c103 NB |
4417 | QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb)); |
4418 | } | |
4419 | ||
4420 | return __qlt_abort_task(vha, iocb, sess); | |
4421 | } | |
4422 | ||
a6ca8878 AP |
4423 | void qlt_logo_completion_handler(fc_port_t *fcport, int rc) |
4424 | { | |
726b8548 QT |
4425 | if (rc != MBS_COMMAND_COMPLETE) { |
4426 | ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093, | |
4427 | "%s: se_sess %p / sess %p from" | |
4428 | " port %8phC loop_id %#04x s_id %02x:%02x:%02x" | |
4429 | " LOGO failed: %#x\n", | |
4430 | __func__, | |
4431 | fcport->se_sess, | |
4432 | fcport, | |
4433 | fcport->port_name, fcport->loop_id, | |
4434 | fcport->d_id.b.domain, fcport->d_id.b.area, | |
4435 | fcport->d_id.b.al_pa, rc); | |
4436 | } | |
4437 | ||
4438 | fcport->logout_completed = 1; | |
a6ca8878 AP |
4439 | } |
4440 | ||
a6ca8878 AP |
4441 | /* |
4442 | * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) | |
4443 | * | |
4444 | * Schedules sessions with matching port_id/loop_id but different wwn for | |
4445 | * deletion. Returns existing session with matching wwn if present. | |
4446 | * Null otherwise. | |
4447 | */ | |
726b8548 QT |
4448 | struct fc_port * |
4449 | qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn, | |
5d964837 | 4450 | port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess) |
a6ca8878 | 4451 | { |
5d964837 | 4452 | struct fc_port *sess = NULL, *other_sess; |
a6ca8878 AP |
4453 | uint64_t other_wwn; |
4454 | ||
b7bd104e AP |
4455 | *conflict_sess = NULL; |
4456 | ||
5d964837 | 4457 | list_for_each_entry(other_sess, &vha->vp_fcports, list) { |
a6ca8878 AP |
4458 | |
4459 | other_wwn = wwn_to_u64(other_sess->port_name); | |
4460 | ||
4461 | if (wwn == other_wwn) { | |
4462 | WARN_ON(sess); | |
4463 | sess = other_sess; | |
4464 | continue; | |
4465 | } | |
4466 | ||
4467 | /* find other sess with nport_id collision */ | |
37cacc0a | 4468 | if (port_id.b24 == other_sess->d_id.b24) { |
a6ca8878 | 4469 | if (loop_id != other_sess->loop_id) { |
726b8548 | 4470 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000c, |
a6ca8878 AP |
4471 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4472 | other_sess, other_sess->loop_id, other_wwn); | |
4473 | ||
4474 | /* | |
4475 | * logout_on_delete is set by default, but another | |
4476 | * session that has the same s_id/loop_id combo | |
4477 | * might have cleared it when requested this session | |
4478 | * deletion, so don't touch it | |
4479 | */ | |
4480 | qlt_schedule_sess_for_deletion(other_sess, true); | |
4481 | } else { | |
4482 | /* | |
4483 | * Another wwn used to have our s_id/loop_id | |
b7bd104e | 4484 | * kill the session, but don't free the loop_id |
a6ca8878 | 4485 | */ |
83548fe2 | 4486 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01b, |
726b8548 QT |
4487 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4488 | other_sess, other_sess->loop_id, other_wwn); | |
4489 | ||
4490 | ||
b7bd104e AP |
4491 | other_sess->keep_nport_handle = 1; |
4492 | *conflict_sess = other_sess; | |
a6ca8878 AP |
4493 | qlt_schedule_sess_for_deletion(other_sess, |
4494 | true); | |
4495 | } | |
4496 | continue; | |
4497 | } | |
4498 | ||
4499 | /* find other sess with nport handle collision */ | |
726b8548 QT |
4500 | if ((loop_id == other_sess->loop_id) && |
4501 | (loop_id != FC_NO_LOOP_ID)) { | |
4502 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000d, | |
a6ca8878 AP |
4503 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4504 | other_sess, other_sess->loop_id, other_wwn); | |
4505 | ||
4506 | /* Same loop_id but different s_id | |
4507 | * Ok to kill and logout */ | |
4508 | qlt_schedule_sess_for_deletion(other_sess, true); | |
4509 | } | |
4510 | } | |
4511 | ||
4512 | return sess; | |
4513 | } | |
4514 | ||
daddf5cf AP |
4515 | /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */ |
4516 | static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id) | |
4517 | { | |
4518 | struct qla_tgt_sess_op *op; | |
4519 | struct qla_tgt_cmd *cmd; | |
4520 | uint32_t key; | |
4521 | int count = 0; | |
8b631d87 | 4522 | unsigned long flags; |
daddf5cf AP |
4523 | |
4524 | key = (((u32)s_id->b.domain << 16) | | |
4525 | ((u32)s_id->b.area << 8) | | |
4526 | ((u32)s_id->b.al_pa)); | |
4527 | ||
8b631d87 | 4528 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
daddf5cf AP |
4529 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
4530 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
41dc529a | 4531 | |
daddf5cf AP |
4532 | if (op_key == key) { |
4533 | op->aborted = true; | |
4534 | count++; | |
4535 | } | |
4536 | } | |
41dc529a QT |
4537 | |
4538 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
4539 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
4540 | if (op_key == key) { | |
4541 | op->aborted = true; | |
4542 | count++; | |
4543 | } | |
4544 | } | |
4545 | ||
daddf5cf AP |
4546 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
4547 | uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
4548 | if (cmd_key == key) { | |
193b50b9 | 4549 | cmd->aborted = 1; |
daddf5cf AP |
4550 | count++; |
4551 | } | |
4552 | } | |
8b631d87 | 4553 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
daddf5cf AP |
4554 | |
4555 | return count; | |
4556 | } | |
4557 | ||
2d70c103 NB |
4558 | /* |
4559 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4560 | */ | |
4561 | static int qlt_24xx_handle_els(struct scsi_qla_host *vha, | |
4562 | struct imm_ntfy_from_isp *iocb) | |
4563 | { | |
a6ca8878 | 4564 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
df673274 | 4565 | struct qla_hw_data *ha = vha->hw; |
5d964837 | 4566 | struct fc_port *sess = NULL, *conflict_sess = NULL; |
a6ca8878 AP |
4567 | uint64_t wwn; |
4568 | port_id_t port_id; | |
4569 | uint16_t loop_id; | |
4570 | uint16_t wd3_lo; | |
2d70c103 | 4571 | int res = 0; |
5d964837 | 4572 | struct qlt_plogi_ack_t *pla; |
7560151b | 4573 | unsigned long flags; |
2d70c103 | 4574 | |
a6ca8878 AP |
4575 | wwn = wwn_to_u64(iocb->u.isp24.port_name); |
4576 | ||
4577 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
4578 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
4579 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
4580 | port_id.b.rsvd_1 = 0; | |
4581 | ||
4582 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
4583 | ||
726b8548 QT |
4584 | ql_dbg(ql_dbg_disc, vha, 0xf026, |
4585 | "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n", | |
4586 | vha->vp_idx, iocb->u.isp24.port_id[2], | |
4587 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
4588 | iocb->u.isp24.status_subcode, loop_id, | |
4589 | iocb->u.isp24.port_name); | |
2d70c103 | 4590 | |
a6ca8878 AP |
4591 | /* res = 1 means ack at the end of thread |
4592 | * res = 0 means ack async/later. | |
4593 | */ | |
2d70c103 NB |
4594 | switch (iocb->u.isp24.status_subcode) { |
4595 | case ELS_PLOGI: | |
a6ca8878 | 4596 | |
daddf5cf AP |
4597 | /* Mark all stale commands in qla_tgt_wq for deletion */ |
4598 | abort_cmds_for_s_id(vha, &port_id); | |
4599 | ||
7560151b QT |
4600 | if (wwn) { |
4601 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); | |
726b8548 QT |
4602 | sess = qlt_find_sess_invalidate_other(vha, wwn, |
4603 | port_id, loop_id, &conflict_sess); | |
7560151b QT |
4604 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); |
4605 | } | |
a6ca8878 | 4606 | |
726b8548 | 4607 | if (IS_SW_RESV_ADDR(port_id)) { |
a6ca8878 AP |
4608 | res = 1; |
4609 | break; | |
4610 | } | |
4611 | ||
b7bd104e AP |
4612 | pla = qlt_plogi_ack_find_add(vha, &port_id, iocb); |
4613 | if (!pla) { | |
a6ca8878 | 4614 | qlt_send_term_imm_notif(vha, iocb, 1); |
a6ca8878 AP |
4615 | break; |
4616 | } | |
4617 | ||
4618 | res = 0; | |
4619 | ||
726b8548 QT |
4620 | if (conflict_sess) { |
4621 | conflict_sess->login_gen++; | |
b7bd104e | 4622 | qlt_plogi_ack_link(vha, pla, conflict_sess, |
726b8548 QT |
4623 | QLT_PLOGI_LINK_CONFLICT); |
4624 | } | |
a6ca8878 | 4625 | |
726b8548 QT |
4626 | if (!sess) { |
4627 | pla->ref_count++; | |
4628 | qla24xx_post_newsess_work(vha, &port_id, | |
4629 | iocb->u.isp24.port_name, pla); | |
4630 | res = 0; | |
b7bd104e | 4631 | break; |
726b8548 | 4632 | } |
b7bd104e AP |
4633 | |
4634 | qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN); | |
726b8548 QT |
4635 | sess->fw_login_state = DSC_LS_PLOGI_PEND; |
4636 | sess->d_id = port_id; | |
4637 | sess->login_gen++; | |
4638 | ||
4639 | switch (sess->disc_state) { | |
4640 | case DSC_DELETED: | |
4641 | qlt_plogi_ack_unref(vha, pla); | |
4642 | break; | |
4643 | ||
4644 | default: | |
4645 | /* | |
4646 | * Under normal circumstances we want to release nport handle | |
4647 | * during LOGO process to avoid nport handle leaks inside FW. | |
4648 | * The exception is when LOGO is done while another PLOGI with | |
4649 | * the same nport handle is waiting as might be the case here. | |
4650 | * Note: there is always a possibily of a race where session | |
4651 | * deletion has already started for other reasons (e.g. ACL | |
4652 | * removal) and now PLOGI arrives: | |
4653 | * 1. if PLOGI arrived in FW after nport handle has been freed, | |
4654 | * FW must have assigned this PLOGI a new/same handle and we | |
4655 | * can proceed ACK'ing it as usual when session deletion | |
4656 | * completes. | |
4657 | * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT | |
4658 | * bit reached it, the handle has now been released. We'll | |
4659 | * get an error when we ACK this PLOGI. Nothing will be sent | |
4660 | * back to initiator. Initiator should eventually retry | |
4661 | * PLOGI and situation will correct itself. | |
4662 | */ | |
4663 | sess->keep_nport_handle = ((sess->loop_id == loop_id) && | |
4664 | (sess->d_id.b24 == port_id.b24)); | |
4665 | ||
83548fe2 QT |
4666 | ql_dbg(ql_dbg_disc, vha, 0x20f9, |
4667 | "%s %d %8phC post del sess\n", | |
4668 | __func__, __LINE__, sess->port_name); | |
726b8548 QT |
4669 | |
4670 | ||
4671 | qlt_schedule_sess_for_deletion_lock(sess); | |
4672 | break; | |
4673 | } | |
4674 | ||
a6ca8878 AP |
4675 | break; |
4676 | ||
2d70c103 | 4677 | case ELS_PRLI: |
a6ca8878 AP |
4678 | wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo); |
4679 | ||
7560151b QT |
4680 | if (wwn) { |
4681 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); | |
726b8548 QT |
4682 | sess = qlt_find_sess_invalidate_other(vha, wwn, port_id, |
4683 | loop_id, &conflict_sess); | |
7560151b QT |
4684 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); |
4685 | } | |
b7bd104e AP |
4686 | |
4687 | if (conflict_sess) { | |
4688 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b, | |
4689 | "PRLI with conflicting sess %p port %8phC\n", | |
4690 | conflict_sess, conflict_sess->port_name); | |
4691 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4692 | res = 0; | |
4693 | break; | |
4694 | } | |
a6ca8878 AP |
4695 | |
4696 | if (sess != NULL) { | |
ec7193e2 QT |
4697 | if (sess->fw_login_state != DSC_LS_PLOGI_PEND && |
4698 | sess->fw_login_state != DSC_LS_PLOGI_COMP) { | |
a6ca8878 AP |
4699 | /* |
4700 | * Impatient initiator sent PRLI before last | |
4701 | * PLOGI could finish. Will force him to re-try, | |
4702 | * while last one finishes. | |
4703 | */ | |
df673274 | 4704 | ql_log(ql_log_warn, sess->vha, 0xf095, |
a6ca8878 AP |
4705 | "sess %p PRLI received, before plogi ack.\n", |
4706 | sess); | |
4707 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4708 | res = 0; | |
4709 | break; | |
4710 | } | |
4711 | ||
4712 | /* | |
4713 | * This shouldn't happen under normal circumstances, | |
4714 | * since we have deleted the old session during PLOGI | |
4715 | */ | |
df673274 | 4716 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096, |
a6ca8878 AP |
4717 | "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n", |
4718 | sess->loop_id, sess, iocb->u.isp24.nport_handle); | |
4719 | ||
4720 | sess->local = 0; | |
4721 | sess->loop_id = loop_id; | |
37cacc0a | 4722 | sess->d_id = port_id; |
726b8548 | 4723 | sess->fw_login_state = DSC_LS_PRLI_PEND; |
a6ca8878 AP |
4724 | |
4725 | if (wd3_lo & BIT_7) | |
4726 | sess->conf_compl_supported = 1; | |
4727 | ||
726b8548 QT |
4728 | if ((wd3_lo & BIT_4) == 0) |
4729 | sess->port_type = FCT_INITIATOR; | |
4730 | else | |
4731 | sess->port_type = FCT_TARGET; | |
df673274 AP |
4732 | } |
4733 | res = 1; /* send notify ack */ | |
4734 | ||
4735 | /* Make session global (not used in fabric mode) */ | |
4736 | if (ha->current_topology != ISP_CFG_F) { | |
ec7193e2 | 4737 | if (sess) { |
83548fe2 | 4738 | ql_dbg(ql_dbg_disc, vha, 0x20fa, |
ec7193e2 QT |
4739 | "%s %d %8phC post nack\n", |
4740 | __func__, __LINE__, sess->port_name); | |
4741 | qla24xx_post_nack_work(vha, sess, iocb, | |
4742 | SRB_NACK_PRLI); | |
4743 | res = 0; | |
4744 | } else { | |
4745 | set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); | |
4746 | set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); | |
4747 | qla2xxx_wake_dpc(vha); | |
4748 | } | |
a6ca8878 | 4749 | } else { |
726b8548 | 4750 | if (sess) { |
83548fe2 | 4751 | ql_dbg(ql_dbg_disc, vha, 0x20fb, |
ec7193e2 QT |
4752 | "%s %d %8phC post nack\n", |
4753 | __func__, __LINE__, sess->port_name); | |
726b8548 QT |
4754 | qla24xx_post_nack_work(vha, sess, iocb, |
4755 | SRB_NACK_PRLI); | |
4756 | res = 0; | |
4757 | } | |
4758 | } | |
a6ca8878 AP |
4759 | break; |
4760 | ||
41dc529a QT |
4761 | case ELS_TPRLO: |
4762 | if (le16_to_cpu(iocb->u.isp24.flags) & | |
4763 | NOTIFY24XX_FLAGS_GLOBAL_TPRLO) { | |
4764 | loop_id = 0xFFFF; | |
4765 | qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS); | |
4766 | res = 1; | |
4767 | break; | |
4768 | } | |
4769 | /* drop through */ | |
2d70c103 NB |
4770 | case ELS_LOGO: |
4771 | case ELS_PRLO: | |
726b8548 QT |
4772 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
4773 | sess = qla2x00_find_fcport_by_loopid(vha, loop_id); | |
4774 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
4775 | ||
4776 | if (sess) { | |
4777 | sess->login_gen++; | |
4778 | sess->fw_login_state = DSC_LS_LOGO_PEND; | |
726b8548 QT |
4779 | sess->logo_ack_needed = 1; |
4780 | memcpy(sess->iocb, iocb, IOCB_SIZE); | |
4781 | } | |
4782 | ||
2d70c103 | 4783 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); |
726b8548 | 4784 | |
83548fe2 | 4785 | ql_dbg(ql_dbg_disc, vha, 0x20fc, |
726b8548 QT |
4786 | "%s: logo %llx res %d sess %p ", |
4787 | __func__, wwn, res, sess); | |
4788 | if (res == 0) { | |
41dc529a QT |
4789 | /* |
4790 | * cmd went upper layer, look for qlt_xmit_tm_rsp() | |
4791 | * for LOGO_ACK & sess delete | |
4792 | */ | |
726b8548 QT |
4793 | BUG_ON(!sess); |
4794 | res = 0; | |
4795 | } else { | |
41dc529a | 4796 | /* cmd did not go to upper layer. */ |
726b8548 QT |
4797 | if (sess) { |
4798 | qlt_schedule_sess_for_deletion_lock(sess); | |
4799 | res = 0; | |
4800 | } | |
4801 | /* else logo will be ack */ | |
4802 | } | |
2d70c103 NB |
4803 | break; |
4804 | case ELS_PDISC: | |
4805 | case ELS_ADISC: | |
4806 | { | |
0e8cd71c | 4807 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
4808 | if (tgt->link_reinit_iocb_pending) { |
4809 | qlt_send_notify_ack(vha, &tgt->link_reinit_iocb, | |
4810 | 0, 0, 0, 0, 0, 0); | |
4811 | tgt->link_reinit_iocb_pending = 0; | |
4812 | } | |
726b8548 QT |
4813 | |
4814 | sess = qla2x00_find_fcport_by_wwpn(vha, | |
4815 | iocb->u.isp24.port_name, 1); | |
4816 | if (sess) { | |
83548fe2 | 4817 | ql_dbg(ql_dbg_disc, vha, 0x20fd, |
726b8548 QT |
4818 | "sess %p lid %d|%d DS %d LS %d\n", |
4819 | sess, sess->loop_id, loop_id, | |
4820 | sess->disc_state, sess->fw_login_state); | |
4821 | } | |
4822 | ||
2d70c103 NB |
4823 | res = 1; /* send notify ack */ |
4824 | break; | |
4825 | } | |
4826 | ||
a6ca8878 | 4827 | case ELS_FLOGI: /* should never happen */ |
2d70c103 NB |
4828 | default: |
4829 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061, | |
4830 | "qla_target(%d): Unsupported ELS command %x " | |
4831 | "received\n", vha->vp_idx, iocb->u.isp24.status_subcode); | |
4832 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); | |
4833 | break; | |
4834 | } | |
4835 | ||
4836 | return res; | |
4837 | } | |
4838 | ||
2d70c103 NB |
4839 | /* |
4840 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4841 | */ | |
4842 | static void qlt_handle_imm_notify(struct scsi_qla_host *vha, | |
4843 | struct imm_ntfy_from_isp *iocb) | |
4844 | { | |
4845 | struct qla_hw_data *ha = vha->hw; | |
4846 | uint32_t add_flags = 0; | |
4847 | int send_notify_ack = 1; | |
4848 | uint16_t status; | |
4849 | ||
4850 | status = le16_to_cpu(iocb->u.isp2x.status); | |
4851 | switch (status) { | |
4852 | case IMM_NTFY_LIP_RESET: | |
4853 | { | |
4854 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032, | |
4855 | "qla_target(%d): LIP reset (loop %#x), subcode %x\n", | |
4856 | vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle), | |
4857 | iocb->u.isp24.status_subcode); | |
4858 | ||
4859 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
4860 | send_notify_ack = 0; | |
4861 | break; | |
4862 | } | |
4863 | ||
4864 | case IMM_NTFY_LIP_LINK_REINIT: | |
4865 | { | |
0e8cd71c | 4866 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
4867 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033, |
4868 | "qla_target(%d): LINK REINIT (loop %#x, " | |
4869 | "subcode %x)\n", vha->vp_idx, | |
4870 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
4871 | iocb->u.isp24.status_subcode); | |
4872 | if (tgt->link_reinit_iocb_pending) { | |
4873 | qlt_send_notify_ack(vha, &tgt->link_reinit_iocb, | |
4874 | 0, 0, 0, 0, 0, 0); | |
4875 | } | |
4876 | memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb)); | |
4877 | tgt->link_reinit_iocb_pending = 1; | |
4878 | /* | |
4879 | * QLogic requires to wait after LINK REINIT for possible | |
4880 | * PDISC or ADISC ELS commands | |
4881 | */ | |
4882 | send_notify_ack = 0; | |
4883 | break; | |
4884 | } | |
4885 | ||
4886 | case IMM_NTFY_PORT_LOGOUT: | |
4887 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034, | |
4888 | "qla_target(%d): Port logout (loop " | |
4889 | "%#x, subcode %x)\n", vha->vp_idx, | |
4890 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
4891 | iocb->u.isp24.status_subcode); | |
4892 | ||
4893 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0) | |
4894 | send_notify_ack = 0; | |
4895 | /* The sessions will be cleared in the callback, if needed */ | |
4896 | break; | |
4897 | ||
4898 | case IMM_NTFY_GLBL_TPRLO: | |
4899 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035, | |
4900 | "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status); | |
4901 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
4902 | send_notify_ack = 0; | |
4903 | /* The sessions will be cleared in the callback, if needed */ | |
4904 | break; | |
4905 | ||
4906 | case IMM_NTFY_PORT_CONFIG: | |
4907 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036, | |
4908 | "qla_target(%d): Port config changed (%x)\n", vha->vp_idx, | |
4909 | status); | |
4910 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
4911 | send_notify_ack = 0; | |
4912 | /* The sessions will be cleared in the callback, if needed */ | |
4913 | break; | |
4914 | ||
4915 | case IMM_NTFY_GLBL_LOGO: | |
4916 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a, | |
4917 | "qla_target(%d): Link failure detected\n", | |
4918 | vha->vp_idx); | |
4919 | /* I_T nexus loss */ | |
4920 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
4921 | send_notify_ack = 0; | |
4922 | break; | |
4923 | ||
4924 | case IMM_NTFY_IOCB_OVERFLOW: | |
4925 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b, | |
4926 | "qla_target(%d): Cannot provide requested " | |
4927 | "capability (IOCB overflowed the immediate notify " | |
4928 | "resource count)\n", vha->vp_idx); | |
4929 | break; | |
4930 | ||
4931 | case IMM_NTFY_ABORT_TASK: | |
4932 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037, | |
4933 | "qla_target(%d): Abort Task (S %08x I %#x -> " | |
4934 | "L %#x)\n", vha->vp_idx, | |
4935 | le16_to_cpu(iocb->u.isp2x.seq_id), | |
4936 | GET_TARGET_ID(ha, (struct atio_from_isp *)iocb), | |
4937 | le16_to_cpu(iocb->u.isp2x.lun)); | |
4938 | if (qlt_abort_task(vha, iocb) == 0) | |
4939 | send_notify_ack = 0; | |
4940 | break; | |
4941 | ||
4942 | case IMM_NTFY_RESOURCE: | |
4943 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c, | |
4944 | "qla_target(%d): Out of resources, host %ld\n", | |
4945 | vha->vp_idx, vha->host_no); | |
4946 | break; | |
4947 | ||
4948 | case IMM_NTFY_MSG_RX: | |
4949 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038, | |
4950 | "qla_target(%d): Immediate notify task %x\n", | |
4951 | vha->vp_idx, iocb->u.isp2x.task_flags); | |
4952 | if (qlt_handle_task_mgmt(vha, iocb) == 0) | |
4953 | send_notify_ack = 0; | |
4954 | break; | |
4955 | ||
4956 | case IMM_NTFY_ELS: | |
4957 | if (qlt_24xx_handle_els(vha, iocb) == 0) | |
4958 | send_notify_ack = 0; | |
4959 | break; | |
2d70c103 NB |
4960 | default: |
4961 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d, | |
4962 | "qla_target(%d): Received unknown immediate " | |
4963 | "notify status %x\n", vha->vp_idx, status); | |
4964 | break; | |
4965 | } | |
4966 | ||
4967 | if (send_notify_ack) | |
4968 | qlt_send_notify_ack(vha, iocb, add_flags, 0, 0, 0, 0, 0); | |
4969 | } | |
4970 | ||
4971 | /* | |
4972 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4973 | * This function sends busy to ISP 2xxx or 24xx. | |
4974 | */ | |
33e79977 | 4975 | static int __qlt_send_busy(struct scsi_qla_host *vha, |
2d70c103 NB |
4976 | struct atio_from_isp *atio, uint16_t status) |
4977 | { | |
4978 | struct ctio7_to_24xx *ctio24; | |
4979 | struct qla_hw_data *ha = vha->hw; | |
4980 | request_t *pkt; | |
5d964837 | 4981 | struct fc_port *sess = NULL; |
7560151b | 4982 | unsigned long flags; |
f7e761f5 | 4983 | u16 temp; |
2d70c103 | 4984 | |
7560151b | 4985 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
4986 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, |
4987 | atio->u.isp24.fcp_hdr.s_id); | |
7560151b | 4988 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 4989 | if (!sess) { |
a07100e0 | 4990 | qlt_send_term_exchange(vha, NULL, atio, 1, 0); |
33e79977 | 4991 | return 0; |
2d70c103 NB |
4992 | } |
4993 | /* Sending marker isn't necessary, since we called from ISR */ | |
4994 | ||
4995 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); | |
4996 | if (!pkt) { | |
667024a3 | 4997 | ql_dbg(ql_dbg_io, vha, 0x3063, |
2d70c103 NB |
4998 | "qla_target(%d): %s failed: unable to allocate " |
4999 | "request packet", vha->vp_idx, __func__); | |
33e79977 | 5000 | return -ENOMEM; |
2d70c103 NB |
5001 | } |
5002 | ||
ce1025cd | 5003 | vha->tgt_counters.num_q_full_sent++; |
2d70c103 NB |
5004 | pkt->entry_count = 1; |
5005 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
5006 | ||
5007 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
5008 | ctio24->entry_type = CTIO_TYPE7; | |
5009 | ctio24->nport_handle = sess->loop_id; | |
ad950360 | 5010 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
5011 | ctio24->vp_index = vha->vp_idx; |
5012 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
5013 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
5014 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
5015 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 | 5016 | temp = (atio->u.isp24.attr << 9) | |
2d70c103 | 5017 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS | |
f7e761f5 QT |
5018 | CTIO7_FLAGS_DONT_RET_CTIO; |
5019 | ctio24->u.status1.flags = cpu_to_le16(temp); | |
2d70c103 NB |
5020 | /* |
5021 | * CTIO from fw w/o se_cmd doesn't provide enough info to retry it, | |
5022 | * if the explicit conformation is used. | |
5023 | */ | |
5024 | ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id); | |
5025 | ctio24->u.status1.scsi_status = cpu_to_le16(status); | |
63163e06 HM |
5026 | /* Memory Barrier */ |
5027 | wmb(); | |
2d70c103 | 5028 | qla2x00_start_iocbs(vha, vha->req); |
33e79977 QT |
5029 | return 0; |
5030 | } | |
5031 | ||
5032 | /* | |
5033 | * This routine is used to allocate a command for either a QFull condition | |
5034 | * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go | |
5035 | * out previously. | |
5036 | */ | |
5037 | static void | |
5038 | qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, | |
5039 | struct atio_from_isp *atio, uint16_t status, int qfull) | |
5040 | { | |
5041 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
5042 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5043 | struct fc_port *sess; |
33e79977 QT |
5044 | struct se_session *se_sess; |
5045 | struct qla_tgt_cmd *cmd; | |
5046 | int tag; | |
5047 | ||
5048 | if (unlikely(tgt->tgt_stop)) { | |
5049 | ql_dbg(ql_dbg_io, vha, 0x300a, | |
5050 | "New command while device %p is shutting down\n", tgt); | |
5051 | return; | |
5052 | } | |
5053 | ||
5054 | if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) { | |
5055 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5056 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5057 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5058 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5059 | vha->hw->tgt.num_qfull_cmds_dropped; |
5060 | ||
5061 | ql_dbg(ql_dbg_io, vha, 0x3068, | |
5062 | "qla_target(%d): %s: QFull CMD dropped[%d]\n", | |
5063 | vha->vp_idx, __func__, | |
5064 | vha->hw->tgt.num_qfull_cmds_dropped); | |
5065 | ||
5066 | qlt_chk_exch_leak_thresh_hold(vha); | |
5067 | return; | |
5068 | } | |
5069 | ||
5070 | sess = ha->tgt.tgt_ops->find_sess_by_s_id | |
5071 | (vha, atio->u.isp24.fcp_hdr.s_id); | |
5072 | if (!sess) | |
5073 | return; | |
5074 | ||
5075 | se_sess = sess->se_sess; | |
5076 | ||
5077 | tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); | |
5078 | if (tag < 0) | |
5079 | return; | |
5080 | ||
5081 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
5082 | if (!cmd) { | |
5083 | ql_dbg(ql_dbg_io, vha, 0x3009, | |
5084 | "qla_target(%d): %s: Allocation of cmd failed\n", | |
5085 | vha->vp_idx, __func__); | |
5086 | ||
5087 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5088 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5089 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5090 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5091 | vha->hw->tgt.num_qfull_cmds_dropped; |
5092 | ||
5093 | qlt_chk_exch_leak_thresh_hold(vha); | |
5094 | return; | |
5095 | } | |
5096 | ||
5097 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
5098 | ||
5099 | qlt_incr_num_pend_cmds(vha); | |
5100 | INIT_LIST_HEAD(&cmd->cmd_list); | |
5101 | memcpy(&cmd->atio, atio, sizeof(*atio)); | |
5102 | ||
5103 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
5104 | cmd->vha = vha; | |
5105 | cmd->reset_count = vha->hw->chip_reset; | |
5106 | cmd->q_full = 1; | |
5107 | ||
5108 | if (qfull) { | |
5109 | cmd->q_full = 1; | |
5110 | /* NOTE: borrowing the state field to carry the status */ | |
5111 | cmd->state = status; | |
5112 | } else | |
5113 | cmd->term_exchg = 1; | |
5114 | ||
5115 | list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list); | |
5116 | ||
5117 | vha->hw->tgt.num_qfull_cmds_alloc++; | |
5118 | if (vha->hw->tgt.num_qfull_cmds_alloc > | |
fc90adaf JC |
5119 | vha->qla_stats.stat_max_qfull_cmds_alloc) |
5120 | vha->qla_stats.stat_max_qfull_cmds_alloc = | |
33e79977 QT |
5121 | vha->hw->tgt.num_qfull_cmds_alloc; |
5122 | } | |
5123 | ||
5124 | int | |
5125 | qlt_free_qfull_cmds(struct scsi_qla_host *vha) | |
5126 | { | |
5127 | struct qla_hw_data *ha = vha->hw; | |
5128 | unsigned long flags; | |
5129 | struct qla_tgt_cmd *cmd, *tcmd; | |
5130 | struct list_head free_list; | |
5131 | int rc = 0; | |
5132 | ||
5133 | if (list_empty(&ha->tgt.q_full_list)) | |
5134 | return 0; | |
5135 | ||
5136 | INIT_LIST_HEAD(&free_list); | |
5137 | ||
5138 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
5139 | ||
5140 | if (list_empty(&ha->tgt.q_full_list)) { | |
5141 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
5142 | return 0; | |
5143 | } | |
5144 | ||
5145 | list_for_each_entry_safe(cmd, tcmd, &ha->tgt.q_full_list, cmd_list) { | |
5146 | if (cmd->q_full) | |
5147 | /* cmd->state is a borrowed field to hold status */ | |
5148 | rc = __qlt_send_busy(vha, &cmd->atio, cmd->state); | |
5149 | else if (cmd->term_exchg) | |
5150 | rc = __qlt_send_term_exchange(vha, NULL, &cmd->atio); | |
5151 | ||
5152 | if (rc == -ENOMEM) | |
5153 | break; | |
5154 | ||
5155 | if (cmd->q_full) | |
5156 | ql_dbg(ql_dbg_io, vha, 0x3006, | |
5157 | "%s: busy sent for ox_id[%04x]\n", __func__, | |
5158 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5159 | else if (cmd->term_exchg) | |
5160 | ql_dbg(ql_dbg_io, vha, 0x3007, | |
5161 | "%s: Term exchg sent for ox_id[%04x]\n", __func__, | |
5162 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5163 | else | |
5164 | ql_dbg(ql_dbg_io, vha, 0x3008, | |
5165 | "%s: Unexpected cmd in QFull list %p\n", __func__, | |
5166 | cmd); | |
5167 | ||
5168 | list_del(&cmd->cmd_list); | |
5169 | list_add_tail(&cmd->cmd_list, &free_list); | |
5170 | ||
5171 | /* piggy back on hardware_lock for protection */ | |
5172 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
5173 | } | |
5174 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
5175 | ||
5176 | cmd = NULL; | |
5177 | ||
5178 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
5179 | list_del(&cmd->cmd_list); | |
5180 | /* This cmd was never sent to TCM. There is no need | |
5181 | * to schedule free or call free_cmd | |
5182 | */ | |
5183 | qlt_free_cmd(cmd); | |
5184 | } | |
5185 | return rc; | |
5186 | } | |
5187 | ||
5188 | static void | |
5189 | qlt_send_busy(struct scsi_qla_host *vha, | |
5190 | struct atio_from_isp *atio, uint16_t status) | |
5191 | { | |
5192 | int rc = 0; | |
5193 | ||
5194 | rc = __qlt_send_busy(vha, atio, status); | |
5195 | if (rc == -ENOMEM) | |
5196 | qlt_alloc_qfull_cmd(vha, atio, status, 1); | |
5197 | } | |
5198 | ||
5199 | static int | |
5200 | qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, | |
8b666809 | 5201 | struct atio_from_isp *atio, bool ha_locked) |
33e79977 QT |
5202 | { |
5203 | struct qla_hw_data *ha = vha->hw; | |
5204 | uint16_t status; | |
8b666809 | 5205 | unsigned long flags; |
33e79977 QT |
5206 | |
5207 | if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha)) | |
5208 | return 0; | |
5209 | ||
8b666809 QT |
5210 | if (!ha_locked) |
5211 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
33e79977 QT |
5212 | status = temp_sam_status; |
5213 | qlt_send_busy(vha, atio, status); | |
8b666809 QT |
5214 | if (!ha_locked) |
5215 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
5216 | ||
33e79977 | 5217 | return 1; |
2d70c103 NB |
5218 | } |
5219 | ||
5220 | /* ha->hardware_lock supposed to be held on entry */ | |
5221 | /* called via callback from qla2xxx */ | |
5222 | static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, | |
2f424b9b | 5223 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 NB |
5224 | { |
5225 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5226 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 5227 | int rc; |
2f424b9b | 5228 | unsigned long flags; |
2d70c103 NB |
5229 | |
5230 | if (unlikely(tgt == NULL)) { | |
ec7193e2 | 5231 | ql_dbg(ql_dbg_tgt, vha, 0x3064, |
2d70c103 NB |
5232 | "ATIO pkt, but no tgt (ha %p)", ha); |
5233 | return; | |
5234 | } | |
2d70c103 NB |
5235 | /* |
5236 | * In tgt_stop mode we also should allow all requests to pass. | |
5237 | * Otherwise, some commands can stuck. | |
5238 | */ | |
5239 | ||
2f424b9b | 5240 | tgt->atio_irq_cmd_count++; |
2d70c103 NB |
5241 | |
5242 | switch (atio->u.raw.entry_type) { | |
5243 | case ATIO_TYPE7: | |
2d70c103 NB |
5244 | if (unlikely(atio->u.isp24.exchange_addr == |
5245 | ATIO_EXCHANGE_ADDRESS_UNKNOWN)) { | |
667024a3 | 5246 | ql_dbg(ql_dbg_io, vha, 0x3065, |
2d70c103 NB |
5247 | "qla_target(%d): ATIO_TYPE7 " |
5248 | "received with UNKNOWN exchange address, " | |
5249 | "sending QUEUE_FULL\n", vha->vp_idx); | |
2f424b9b QT |
5250 | if (!ha_locked) |
5251 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2d70c103 | 5252 | qlt_send_busy(vha, atio, SAM_STAT_TASK_SET_FULL); |
2f424b9b QT |
5253 | if (!ha_locked) |
5254 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2d70c103 NB |
5255 | break; |
5256 | } | |
33e79977 QT |
5257 | |
5258 | ||
5259 | ||
5260 | if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) { | |
8b666809 | 5261 | rc = qlt_chk_qfull_thresh_hold(vha, atio, ha_locked); |
33e79977 | 5262 | if (rc != 0) { |
2f424b9b | 5263 | tgt->atio_irq_cmd_count--; |
33e79977 QT |
5264 | return; |
5265 | } | |
2d70c103 | 5266 | rc = qlt_handle_cmd_for_atio(vha, atio); |
33e79977 | 5267 | } else { |
2d70c103 | 5268 | rc = qlt_handle_task_mgmt(vha, atio); |
33e79977 | 5269 | } |
2d70c103 NB |
5270 | if (unlikely(rc != 0)) { |
5271 | if (rc == -ESRCH) { | |
2f424b9b QT |
5272 | if (!ha_locked) |
5273 | spin_lock_irqsave | |
5274 | (&ha->hardware_lock, flags); | |
5275 | ||
2d70c103 NB |
5276 | #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */ |
5277 | qlt_send_busy(vha, atio, SAM_STAT_BUSY); | |
5278 | #else | |
a07100e0 | 5279 | qlt_send_term_exchange(vha, NULL, atio, 1, 0); |
2d70c103 | 5280 | #endif |
2f424b9b QT |
5281 | |
5282 | if (!ha_locked) | |
5283 | spin_unlock_irqrestore | |
5284 | (&ha->hardware_lock, flags); | |
5285 | ||
2d70c103 NB |
5286 | } else { |
5287 | if (tgt->tgt_stop) { | |
5288 | ql_dbg(ql_dbg_tgt, vha, 0xe059, | |
5289 | "qla_target: Unable to send " | |
5290 | "command to target for req, " | |
5291 | "ignoring.\n"); | |
5292 | } else { | |
5293 | ql_dbg(ql_dbg_tgt, vha, 0xe05a, | |
5294 | "qla_target(%d): Unable to send " | |
5295 | "command to target, sending BUSY " | |
5296 | "status.\n", vha->vp_idx); | |
2f424b9b QT |
5297 | if (!ha_locked) |
5298 | spin_lock_irqsave( | |
5299 | &ha->hardware_lock, flags); | |
2d70c103 | 5300 | qlt_send_busy(vha, atio, SAM_STAT_BUSY); |
2f424b9b QT |
5301 | if (!ha_locked) |
5302 | spin_unlock_irqrestore( | |
5303 | &ha->hardware_lock, flags); | |
2d70c103 NB |
5304 | } |
5305 | } | |
5306 | } | |
5307 | break; | |
5308 | ||
5309 | case IMMED_NOTIFY_TYPE: | |
5310 | { | |
5311 | if (unlikely(atio->u.isp2x.entry_status != 0)) { | |
5312 | ql_dbg(ql_dbg_tgt, vha, 0xe05b, | |
5313 | "qla_target(%d): Received ATIO packet %x " | |
5314 | "with error status %x\n", vha->vp_idx, | |
5315 | atio->u.raw.entry_type, | |
5316 | atio->u.isp2x.entry_status); | |
5317 | break; | |
5318 | } | |
5319 | ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO"); | |
2f424b9b QT |
5320 | |
5321 | if (!ha_locked) | |
5322 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2d70c103 | 5323 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio); |
2f424b9b QT |
5324 | if (!ha_locked) |
5325 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2d70c103 NB |
5326 | break; |
5327 | } | |
5328 | ||
5329 | default: | |
5330 | ql_dbg(ql_dbg_tgt, vha, 0xe05c, | |
5331 | "qla_target(%d): Received unknown ATIO atio " | |
5332 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
5333 | break; | |
5334 | } | |
5335 | ||
2f424b9b | 5336 | tgt->atio_irq_cmd_count--; |
2d70c103 NB |
5337 | } |
5338 | ||
5339 | /* ha->hardware_lock supposed to be held on entry */ | |
5340 | /* called via callback from qla2xxx */ | |
5341 | static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt) | |
5342 | { | |
5343 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5344 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
5345 | |
5346 | if (unlikely(tgt == NULL)) { | |
5347 | ql_dbg(ql_dbg_tgt, vha, 0xe05d, | |
5348 | "qla_target(%d): Response pkt %x received, but no " | |
5349 | "tgt (ha %p)\n", vha->vp_idx, pkt->entry_type, ha); | |
5350 | return; | |
5351 | } | |
5352 | ||
2d70c103 NB |
5353 | /* |
5354 | * In tgt_stop mode we also should allow all requests to pass. | |
5355 | * Otherwise, some commands can stuck. | |
5356 | */ | |
5357 | ||
5358 | tgt->irq_cmd_count++; | |
5359 | ||
5360 | switch (pkt->entry_type) { | |
f83adb61 | 5361 | case CTIO_CRC2: |
2d70c103 NB |
5362 | case CTIO_TYPE7: |
5363 | { | |
5364 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
2d70c103 NB |
5365 | qlt_do_ctio_completion(vha, entry->handle, |
5366 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), | |
5367 | entry); | |
5368 | break; | |
5369 | } | |
5370 | ||
5371 | case ACCEPT_TGT_IO_TYPE: | |
5372 | { | |
5373 | struct atio_from_isp *atio = (struct atio_from_isp *)pkt; | |
5374 | int rc; | |
2d70c103 | 5375 | if (atio->u.isp2x.status != |
ad950360 | 5376 | cpu_to_le16(ATIO_CDB_VALID)) { |
2d70c103 NB |
5377 | ql_dbg(ql_dbg_tgt, vha, 0xe05e, |
5378 | "qla_target(%d): ATIO with error " | |
5379 | "status %x received\n", vha->vp_idx, | |
5380 | le16_to_cpu(atio->u.isp2x.status)); | |
5381 | break; | |
5382 | } | |
2d70c103 | 5383 | |
8b666809 | 5384 | rc = qlt_chk_qfull_thresh_hold(vha, atio, true); |
33e79977 QT |
5385 | if (rc != 0) { |
5386 | tgt->irq_cmd_count--; | |
5387 | return; | |
5388 | } | |
5389 | ||
2d70c103 NB |
5390 | rc = qlt_handle_cmd_for_atio(vha, atio); |
5391 | if (unlikely(rc != 0)) { | |
5392 | if (rc == -ESRCH) { | |
5393 | #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */ | |
5394 | qlt_send_busy(vha, atio, 0); | |
5395 | #else | |
a07100e0 | 5396 | qlt_send_term_exchange(vha, NULL, atio, 1, 0); |
2d70c103 NB |
5397 | #endif |
5398 | } else { | |
5399 | if (tgt->tgt_stop) { | |
5400 | ql_dbg(ql_dbg_tgt, vha, 0xe05f, | |
5401 | "qla_target: Unable to send " | |
5402 | "command to target, sending TERM " | |
5403 | "EXCHANGE for rsp\n"); | |
5404 | qlt_send_term_exchange(vha, NULL, | |
a07100e0 | 5405 | atio, 1, 0); |
2d70c103 NB |
5406 | } else { |
5407 | ql_dbg(ql_dbg_tgt, vha, 0xe060, | |
5408 | "qla_target(%d): Unable to send " | |
5409 | "command to target, sending BUSY " | |
5410 | "status\n", vha->vp_idx); | |
5411 | qlt_send_busy(vha, atio, 0); | |
5412 | } | |
5413 | } | |
5414 | } | |
5415 | } | |
5416 | break; | |
5417 | ||
5418 | case CONTINUE_TGT_IO_TYPE: | |
5419 | { | |
5420 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
2d70c103 NB |
5421 | qlt_do_ctio_completion(vha, entry->handle, |
5422 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), | |
5423 | entry); | |
5424 | break; | |
5425 | } | |
5426 | ||
5427 | case CTIO_A64_TYPE: | |
5428 | { | |
5429 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
2d70c103 NB |
5430 | qlt_do_ctio_completion(vha, entry->handle, |
5431 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), | |
5432 | entry); | |
5433 | break; | |
5434 | } | |
5435 | ||
5436 | case IMMED_NOTIFY_TYPE: | |
5437 | ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n"); | |
5438 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt); | |
5439 | break; | |
5440 | ||
5441 | case NOTIFY_ACK_TYPE: | |
5442 | if (tgt->notify_ack_expected > 0) { | |
5443 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
5444 | ql_dbg(ql_dbg_tgt, vha, 0xe036, | |
5445 | "NOTIFY_ACK seq %08x status %x\n", | |
5446 | le16_to_cpu(entry->u.isp2x.seq_id), | |
5447 | le16_to_cpu(entry->u.isp2x.status)); | |
5448 | tgt->notify_ack_expected--; | |
5449 | if (entry->u.isp2x.status != | |
ad950360 | 5450 | cpu_to_le16(NOTIFY_ACK_SUCCESS)) { |
2d70c103 NB |
5451 | ql_dbg(ql_dbg_tgt, vha, 0xe061, |
5452 | "qla_target(%d): NOTIFY_ACK " | |
5453 | "failed %x\n", vha->vp_idx, | |
5454 | le16_to_cpu(entry->u.isp2x.status)); | |
5455 | } | |
5456 | } else { | |
5457 | ql_dbg(ql_dbg_tgt, vha, 0xe062, | |
5458 | "qla_target(%d): Unexpected NOTIFY_ACK received\n", | |
5459 | vha->vp_idx); | |
5460 | } | |
5461 | break; | |
5462 | ||
5463 | case ABTS_RECV_24XX: | |
5464 | ql_dbg(ql_dbg_tgt, vha, 0xe037, | |
5465 | "ABTS_RECV_24XX: instance %d\n", vha->vp_idx); | |
5466 | qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt); | |
5467 | break; | |
5468 | ||
5469 | case ABTS_RESP_24XX: | |
5470 | if (tgt->abts_resp_expected > 0) { | |
5471 | struct abts_resp_from_24xx_fw *entry = | |
5472 | (struct abts_resp_from_24xx_fw *)pkt; | |
5473 | ql_dbg(ql_dbg_tgt, vha, 0xe038, | |
5474 | "ABTS_RESP_24XX: compl_status %x\n", | |
5475 | entry->compl_status); | |
5476 | tgt->abts_resp_expected--; | |
5477 | if (le16_to_cpu(entry->compl_status) != | |
5478 | ABTS_RESP_COMPL_SUCCESS) { | |
5479 | if ((entry->error_subcode1 == 0x1E) && | |
5480 | (entry->error_subcode2 == 0)) { | |
5481 | /* | |
5482 | * We've got a race here: aborted | |
5483 | * exchange not terminated, i.e. | |
5484 | * response for the aborted command was | |
5485 | * sent between the abort request was | |
5486 | * received and processed. | |
5487 | * Unfortunately, the firmware has a | |
5488 | * silly requirement that all aborted | |
5489 | * exchanges must be explicitely | |
5490 | * terminated, otherwise it refuses to | |
5491 | * send responses for the abort | |
5492 | * requests. So, we have to | |
5493 | * (re)terminate the exchange and retry | |
5494 | * the abort response. | |
5495 | */ | |
5496 | qlt_24xx_retry_term_exchange(vha, | |
5497 | entry); | |
5498 | } else | |
5499 | ql_dbg(ql_dbg_tgt, vha, 0xe063, | |
5500 | "qla_target(%d): ABTS_RESP_24XX " | |
5501 | "failed %x (subcode %x:%x)", | |
5502 | vha->vp_idx, entry->compl_status, | |
5503 | entry->error_subcode1, | |
5504 | entry->error_subcode2); | |
5505 | } | |
5506 | } else { | |
5507 | ql_dbg(ql_dbg_tgt, vha, 0xe064, | |
5508 | "qla_target(%d): Unexpected ABTS_RESP_24XX " | |
5509 | "received\n", vha->vp_idx); | |
5510 | } | |
5511 | break; | |
5512 | ||
5513 | default: | |
5514 | ql_dbg(ql_dbg_tgt, vha, 0xe065, | |
5515 | "qla_target(%d): Received unknown response pkt " | |
5516 | "type %x\n", vha->vp_idx, pkt->entry_type); | |
5517 | break; | |
5518 | } | |
5519 | ||
5520 | tgt->irq_cmd_count--; | |
5521 | } | |
5522 | ||
5523 | /* | |
5524 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
5525 | */ | |
5526 | void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, | |
5527 | uint16_t *mailbox) | |
5528 | { | |
5529 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5530 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
4f1d0f19 | 5531 | int login_code; |
2d70c103 | 5532 | |
3a33dc95 | 5533 | if (!tgt || tgt->tgt_stop || tgt->tgt_stopped) |
2d70c103 NB |
5534 | return; |
5535 | ||
5536 | if (unlikely(tgt == NULL)) { | |
5537 | ql_dbg(ql_dbg_tgt, vha, 0xe03a, | |
5538 | "ASYNC EVENT %#x, but no tgt (ha %p)\n", code, ha); | |
5539 | return; | |
5540 | } | |
5541 | ||
5542 | if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) && | |
5543 | IS_QLA2100(ha)) | |
5544 | return; | |
5545 | /* | |
5546 | * In tgt_stop mode we also should allow all requests to pass. | |
5547 | * Otherwise, some commands can stuck. | |
5548 | */ | |
5549 | ||
5550 | tgt->irq_cmd_count++; | |
5551 | ||
5552 | switch (code) { | |
5553 | case MBA_RESET: /* Reset */ | |
5554 | case MBA_SYSTEM_ERR: /* System Error */ | |
5555 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
5556 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ | |
5557 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a, | |
5558 | "qla_target(%d): System error async event %#x " | |
6efb3c0a | 5559 | "occurred", vha->vp_idx, code); |
2d70c103 NB |
5560 | break; |
5561 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */ | |
5562 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
5563 | break; | |
5564 | ||
5565 | case MBA_LOOP_UP: | |
5566 | { | |
5567 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b, | |
6efb3c0a | 5568 | "qla_target(%d): Async LOOP_UP occurred " |
4f1d0f19 AC |
5569 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, |
5570 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5571 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 NB |
5572 | if (tgt->link_reinit_iocb_pending) { |
5573 | qlt_send_notify_ack(vha, (void *)&tgt->link_reinit_iocb, | |
5574 | 0, 0, 0, 0, 0, 0); | |
5575 | tgt->link_reinit_iocb_pending = 0; | |
5576 | } | |
5577 | break; | |
5578 | } | |
5579 | ||
5580 | case MBA_LIP_OCCURRED: | |
5581 | case MBA_LOOP_DOWN: | |
5582 | case MBA_LIP_RESET: | |
5583 | case MBA_RSCN_UPDATE: | |
5584 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c, | |
6efb3c0a | 5585 | "qla_target(%d): Async event %#x occurred " |
4f1d0f19 AC |
5586 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
5587 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5588 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 NB |
5589 | break; |
5590 | ||
ead03855 | 5591 | case MBA_REJECTED_FCP_CMD: |
83548fe2 QT |
5592 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017, |
5593 | "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", | |
5594 | vha->vp_idx, | |
5595 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5596 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
ead03855 QT |
5597 | |
5598 | if (le16_to_cpu(mailbox[3]) == 1) { | |
5599 | /* exchange starvation. */ | |
5600 | vha->hw->exch_starvation++; | |
5601 | if (vha->hw->exch_starvation > 5) { | |
83548fe2 | 5602 | ql_log(ql_log_warn, vha, 0xd03a, |
ead03855 QT |
5603 | "Exchange starvation-. Resetting RISC\n"); |
5604 | ||
5605 | vha->hw->exch_starvation = 0; | |
5606 | if (IS_P3P_TYPE(vha->hw)) | |
5607 | set_bit(FCOE_CTX_RESET_NEEDED, | |
5608 | &vha->dpc_flags); | |
5609 | else | |
5610 | set_bit(ISP_ABORT_NEEDED, | |
5611 | &vha->dpc_flags); | |
5612 | qla2xxx_wake_dpc(vha); | |
5613 | } | |
5614 | } | |
5615 | break; | |
5616 | ||
2d70c103 NB |
5617 | case MBA_PORT_UPDATE: |
5618 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d, | |
5619 | "qla_target(%d): Port update async event %#x " | |
6efb3c0a | 5620 | "occurred: updating the ports database (m[0]=%x, m[1]=%x, " |
4f1d0f19 AC |
5621 | "m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
5622 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5623 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
5624 | ||
5625 | login_code = le16_to_cpu(mailbox[2]); | |
ead03855 | 5626 | if (login_code == 0x4) { |
2d70c103 NB |
5627 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e, |
5628 | "Async MB 2: Got PLOGI Complete\n"); | |
ead03855 QT |
5629 | vha->hw->exch_starvation = 0; |
5630 | } else if (login_code == 0x7) | |
2d70c103 NB |
5631 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f, |
5632 | "Async MB 2: Port Logged Out\n"); | |
5633 | break; | |
2d70c103 | 5634 | default: |
2d70c103 NB |
5635 | break; |
5636 | } | |
5637 | ||
5638 | tgt->irq_cmd_count--; | |
5639 | } | |
5640 | ||
5641 | static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha, | |
5642 | uint16_t loop_id) | |
5643 | { | |
726b8548 | 5644 | fc_port_t *fcport, *tfcp, *del; |
2d70c103 | 5645 | int rc; |
726b8548 QT |
5646 | unsigned long flags; |
5647 | u8 newfcport = 0; | |
2d70c103 NB |
5648 | |
5649 | fcport = kzalloc(sizeof(*fcport), GFP_KERNEL); | |
5650 | if (!fcport) { | |
5651 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f, | |
5652 | "qla_target(%d): Allocation of tmp FC port failed", | |
5653 | vha->vp_idx); | |
5654 | return NULL; | |
5655 | } | |
5656 | ||
2d70c103 NB |
5657 | fcport->loop_id = loop_id; |
5658 | ||
15f30a57 | 5659 | rc = qla24xx_gpdb_wait(vha, fcport, 0); |
2d70c103 NB |
5660 | if (rc != QLA_SUCCESS) { |
5661 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070, | |
5662 | "qla_target(%d): Failed to retrieve fcport " | |
5663 | "information -- get_port_database() returned %x " | |
5664 | "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id); | |
5665 | kfree(fcport); | |
5666 | return NULL; | |
5667 | } | |
5668 | ||
726b8548 QT |
5669 | del = NULL; |
5670 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
5671 | tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1); | |
5672 | ||
5673 | if (tfcp) { | |
5674 | tfcp->d_id = fcport->d_id; | |
5675 | tfcp->port_type = fcport->port_type; | |
5676 | tfcp->supported_classes = fcport->supported_classes; | |
5677 | tfcp->flags |= fcport->flags; | |
5678 | ||
5679 | del = fcport; | |
5680 | fcport = tfcp; | |
5681 | } else { | |
5682 | if (vha->hw->current_topology == ISP_CFG_F) | |
5683 | fcport->flags |= FCF_FABRIC_DEVICE; | |
5684 | ||
5685 | list_add_tail(&fcport->list, &vha->vp_fcports); | |
5686 | if (!IS_SW_RESV_ADDR(fcport->d_id)) | |
5687 | vha->fcport_count++; | |
5688 | fcport->login_gen++; | |
5689 | fcport->disc_state = DSC_LOGIN_COMPLETE; | |
5690 | fcport->login_succ = 1; | |
5691 | newfcport = 1; | |
5692 | } | |
5693 | ||
5694 | fcport->deleted = 0; | |
5695 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
5696 | ||
5697 | switch (vha->host->active_mode) { | |
5698 | case MODE_INITIATOR: | |
5699 | case MODE_DUAL: | |
5700 | if (newfcport) { | |
5701 | if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) { | |
83548fe2 | 5702 | ql_dbg(ql_dbg_disc, vha, 0x20fe, |
726b8548 QT |
5703 | "%s %d %8phC post upd_fcport fcp_cnt %d\n", |
5704 | __func__, __LINE__, fcport->port_name, vha->fcport_count); | |
5705 | qla24xx_post_upd_fcport_work(vha, fcport); | |
5706 | } else { | |
83548fe2 | 5707 | ql_dbg(ql_dbg_disc, vha, 0x20ff, |
726b8548 QT |
5708 | "%s %d %8phC post gpsc fcp_cnt %d\n", |
5709 | __func__, __LINE__, fcport->port_name, vha->fcport_count); | |
5710 | qla24xx_post_gpsc_work(vha, fcport); | |
5711 | } | |
5712 | } | |
5713 | break; | |
5714 | ||
5715 | case MODE_TARGET: | |
5716 | default: | |
5717 | break; | |
5718 | } | |
5719 | if (del) | |
5720 | qla2x00_free_fcport(del); | |
5721 | ||
2d70c103 NB |
5722 | return fcport; |
5723 | } | |
5724 | ||
5725 | /* Must be called under tgt_mutex */ | |
5d964837 | 5726 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha, |
2d70c103 NB |
5727 | uint8_t *s_id) |
5728 | { | |
5d964837 | 5729 | struct fc_port *sess = NULL; |
2d70c103 NB |
5730 | fc_port_t *fcport = NULL; |
5731 | int rc, global_resets; | |
5732 | uint16_t loop_id = 0; | |
5733 | ||
726b8548 QT |
5734 | if ((s_id[0] == 0xFF) && (s_id[1] == 0xFC)) { |
5735 | /* | |
5736 | * This is Domain Controller, so it should be | |
5737 | * OK to drop SCSI commands from it. | |
5738 | */ | |
5739 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042, | |
5740 | "Unable to find initiator with S_ID %x:%x:%x", | |
5741 | s_id[0], s_id[1], s_id[2]); | |
5742 | return NULL; | |
5743 | } | |
5744 | ||
71cdc079 AP |
5745 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
5746 | ||
2d70c103 | 5747 | retry: |
0e8cd71c SK |
5748 | global_resets = |
5749 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); | |
2d70c103 NB |
5750 | |
5751 | rc = qla24xx_get_loop_id(vha, s_id, &loop_id); | |
5752 | if (rc != 0) { | |
71cdc079 AP |
5753 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
5754 | ||
726b8548 QT |
5755 | ql_log(ql_log_info, vha, 0xf071, |
5756 | "qla_target(%d): Unable to find " | |
5757 | "initiator with S_ID %x:%x:%x", | |
5758 | vha->vp_idx, s_id[0], s_id[1], | |
5759 | s_id[2]); | |
71cdc079 AP |
5760 | |
5761 | if (rc == -ENOENT) { | |
5762 | qlt_port_logo_t logo; | |
5763 | sid_to_portid(s_id, &logo.id); | |
5764 | logo.cmd_count = 1; | |
5765 | qlt_send_first_logo(vha, &logo); | |
5766 | } | |
5767 | ||
2d70c103 NB |
5768 | return NULL; |
5769 | } | |
5770 | ||
5771 | fcport = qlt_get_port_database(vha, loop_id); | |
71cdc079 AP |
5772 | if (!fcport) { |
5773 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
2d70c103 | 5774 | return NULL; |
71cdc079 | 5775 | } |
2d70c103 NB |
5776 | |
5777 | if (global_resets != | |
0e8cd71c | 5778 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) { |
2d70c103 NB |
5779 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043, |
5780 | "qla_target(%d): global reset during session discovery " | |
5781 | "(counter was %d, new %d), retrying", vha->vp_idx, | |
5782 | global_resets, | |
0e8cd71c SK |
5783 | atomic_read(&vha->vha_tgt. |
5784 | qla_tgt->tgt_global_resets_count)); | |
2d70c103 NB |
5785 | goto retry; |
5786 | } | |
5787 | ||
5788 | sess = qlt_create_sess(vha, fcport, true); | |
5789 | ||
71cdc079 AP |
5790 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
5791 | ||
2d70c103 NB |
5792 | return sess; |
5793 | } | |
5794 | ||
5795 | static void qlt_abort_work(struct qla_tgt *tgt, | |
5796 | struct qla_tgt_sess_work_param *prm) | |
5797 | { | |
5798 | struct scsi_qla_host *vha = tgt->vha; | |
5799 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5800 | struct fc_port *sess = NULL; |
7560151b | 5801 | unsigned long flags = 0, flags2 = 0; |
2d70c103 NB |
5802 | uint32_t be_s_id; |
5803 | uint8_t s_id[3]; | |
5804 | int rc; | |
5805 | ||
7560151b | 5806 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 NB |
5807 | |
5808 | if (tgt->tgt_stop) | |
7560151b | 5809 | goto out_term2; |
2d70c103 NB |
5810 | |
5811 | s_id[0] = prm->abts.fcp_hdr_le.s_id[2]; | |
5812 | s_id[1] = prm->abts.fcp_hdr_le.s_id[1]; | |
5813 | s_id[2] = prm->abts.fcp_hdr_le.s_id[0]; | |
5814 | ||
5815 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, | |
5816 | (unsigned char *)&be_s_id); | |
5817 | if (!sess) { | |
7560151b | 5818 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); |
2d70c103 | 5819 | |
2d70c103 NB |
5820 | sess = qlt_make_local_sess(vha, s_id); |
5821 | /* sess has got an extra creation ref */ | |
2d70c103 | 5822 | |
7560151b | 5823 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 | 5824 | if (!sess) |
7560151b | 5825 | goto out_term2; |
2d70c103 | 5826 | } else { |
726b8548 | 5827 | if (sess->deleted) { |
e52a8b45 | 5828 | sess = NULL; |
7560151b | 5829 | goto out_term2; |
e52a8b45 AP |
5830 | } |
5831 | ||
726b8548 | 5832 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 5833 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c, |
726b8548 QT |
5834 | "%s: kref_get fail %8phC \n", |
5835 | __func__, sess->port_name); | |
5836 | sess = NULL; | |
5837 | goto out_term2; | |
5838 | } | |
2d70c103 NB |
5839 | } |
5840 | ||
2d70c103 | 5841 | rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess); |
f159b3c7 QT |
5842 | ha->tgt.tgt_ops->put_sess(sess); |
5843 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
5844 | ||
2d70c103 NB |
5845 | if (rc != 0) |
5846 | goto out_term; | |
2d70c103 NB |
5847 | return; |
5848 | ||
7560151b | 5849 | out_term2: |
f159b3c7 QT |
5850 | if (sess) |
5851 | ha->tgt.tgt_ops->put_sess(sess); | |
5852 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
7560151b | 5853 | |
2d70c103 | 5854 | out_term: |
f159b3c7 | 5855 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2d70c103 | 5856 | qlt_24xx_send_abts_resp(vha, &prm->abts, FCP_TMF_REJECTED, false); |
7560151b | 5857 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2d70c103 NB |
5858 | } |
5859 | ||
5860 | static void qlt_tmr_work(struct qla_tgt *tgt, | |
5861 | struct qla_tgt_sess_work_param *prm) | |
5862 | { | |
5863 | struct atio_from_isp *a = &prm->tm_iocb2; | |
5864 | struct scsi_qla_host *vha = tgt->vha; | |
5865 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5866 | struct fc_port *sess = NULL; |
2d70c103 NB |
5867 | unsigned long flags; |
5868 | uint8_t *s_id = NULL; /* to hide compiler warnings */ | |
5869 | int rc; | |
f775bd14 | 5870 | u64 unpacked_lun; |
52c82823 | 5871 | int fn; |
2d70c103 NB |
5872 | void *iocb; |
5873 | ||
7560151b | 5874 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
5875 | |
5876 | if (tgt->tgt_stop) | |
f159b3c7 | 5877 | goto out_term2; |
2d70c103 NB |
5878 | |
5879 | s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id; | |
5880 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); | |
5881 | if (!sess) { | |
7560151b | 5882 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 5883 | |
2d70c103 NB |
5884 | sess = qlt_make_local_sess(vha, s_id); |
5885 | /* sess has got an extra creation ref */ | |
2d70c103 | 5886 | |
7560151b | 5887 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 5888 | if (!sess) |
f159b3c7 | 5889 | goto out_term2; |
2d70c103 | 5890 | } else { |
726b8548 | 5891 | if (sess->deleted) { |
e52a8b45 | 5892 | sess = NULL; |
f159b3c7 | 5893 | goto out_term2; |
e52a8b45 AP |
5894 | } |
5895 | ||
726b8548 | 5896 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 5897 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020, |
726b8548 QT |
5898 | "%s: kref_get fail %8phC\n", |
5899 | __func__, sess->port_name); | |
5900 | sess = NULL; | |
f159b3c7 | 5901 | goto out_term2; |
726b8548 | 5902 | } |
2d70c103 NB |
5903 | } |
5904 | ||
5905 | iocb = a; | |
2d70c103 | 5906 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
f775bd14 QT |
5907 | unpacked_lun = |
5908 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
2d70c103 NB |
5909 | |
5910 | rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); | |
5d964837 | 5911 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 5912 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
f159b3c7 QT |
5913 | |
5914 | if (rc != 0) | |
5915 | goto out_term; | |
2d70c103 NB |
5916 | return; |
5917 | ||
f159b3c7 QT |
5918 | out_term2: |
5919 | if (sess) | |
5920 | ha->tgt.tgt_ops->put_sess(sess); | |
5921 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 | 5922 | out_term: |
a07100e0 | 5923 | qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1, 0); |
2d70c103 NB |
5924 | } |
5925 | ||
5926 | static void qlt_sess_work_fn(struct work_struct *work) | |
5927 | { | |
5928 | struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work); | |
5929 | struct scsi_qla_host *vha = tgt->vha; | |
5930 | unsigned long flags; | |
5931 | ||
5932 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt); | |
5933 | ||
5934 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
5935 | while (!list_empty(&tgt->sess_works_list)) { | |
5936 | struct qla_tgt_sess_work_param *prm = list_entry( | |
5937 | tgt->sess_works_list.next, typeof(*prm), | |
5938 | sess_works_list_entry); | |
5939 | ||
5940 | /* | |
5941 | * This work can be scheduled on several CPUs at time, so we | |
5942 | * must delete the entry to eliminate double processing | |
5943 | */ | |
5944 | list_del(&prm->sess_works_list_entry); | |
5945 | ||
5946 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
5947 | ||
5948 | switch (prm->type) { | |
5949 | case QLA_TGT_SESS_WORK_ABORT: | |
5950 | qlt_abort_work(tgt, prm); | |
5951 | break; | |
5952 | case QLA_TGT_SESS_WORK_TM: | |
5953 | qlt_tmr_work(tgt, prm); | |
5954 | break; | |
5955 | default: | |
5956 | BUG_ON(1); | |
5957 | break; | |
5958 | } | |
5959 | ||
5960 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
5961 | ||
5962 | kfree(prm); | |
5963 | } | |
5964 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
5965 | } | |
5966 | ||
5967 | /* Must be called under tgt_host_action_mutex */ | |
5968 | int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) | |
5969 | { | |
5970 | struct qla_tgt *tgt; | |
5971 | ||
5972 | if (!QLA_TGT_MODE_ENABLED()) | |
5973 | return 0; | |
5974 | ||
33c36c0a AE |
5975 | if (!IS_TGT_MODE_CAPABLE(ha)) { |
5976 | ql_log(ql_log_warn, base_vha, 0xe070, | |
5977 | "This adapter does not support target mode.\n"); | |
5978 | return 0; | |
5979 | } | |
5980 | ||
2d70c103 | 5981 | ql_dbg(ql_dbg_tgt, base_vha, 0xe03b, |
0e8cd71c | 5982 | "Registering target for host %ld(%p).\n", base_vha->host_no, ha); |
2d70c103 | 5983 | |
0e8cd71c | 5984 | BUG_ON(base_vha->vha_tgt.qla_tgt != NULL); |
2d70c103 NB |
5985 | |
5986 | tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL); | |
5987 | if (!tgt) { | |
5988 | ql_dbg(ql_dbg_tgt, base_vha, 0xe066, | |
5989 | "Unable to allocate struct qla_tgt\n"); | |
5990 | return -ENOMEM; | |
5991 | } | |
5992 | ||
5993 | if (!(base_vha->host->hostt->supported_mode & MODE_TARGET)) | |
5994 | base_vha->host->hostt->supported_mode |= MODE_TARGET; | |
5995 | ||
5996 | tgt->ha = ha; | |
5997 | tgt->vha = base_vha; | |
5998 | init_waitqueue_head(&tgt->waitQ); | |
2d70c103 | 5999 | INIT_LIST_HEAD(&tgt->del_sess_list); |
2d70c103 NB |
6000 | spin_lock_init(&tgt->sess_work_lock); |
6001 | INIT_WORK(&tgt->sess_work, qlt_sess_work_fn); | |
6002 | INIT_LIST_HEAD(&tgt->sess_works_list); | |
2d70c103 NB |
6003 | atomic_set(&tgt->tgt_global_resets_count, 0); |
6004 | ||
0e8cd71c | 6005 | base_vha->vha_tgt.qla_tgt = tgt; |
2d70c103 NB |
6006 | |
6007 | ql_dbg(ql_dbg_tgt, base_vha, 0xe067, | |
6008 | "qla_target(%d): using 64 Bit PCI addressing", | |
6009 | base_vha->vp_idx); | |
6010 | tgt->tgt_enable_64bit_addr = 1; | |
6011 | /* 3 is reserved */ | |
6012 | tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3); | |
6013 | tgt->datasegs_per_cmd = QLA_TGT_DATASEGS_PER_CMD_24XX; | |
6014 | tgt->datasegs_per_cont = QLA_TGT_DATASEGS_PER_CONT_24XX; | |
6015 | ||
6016 | mutex_lock(&qla_tgt_mutex); | |
6017 | list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist); | |
6018 | mutex_unlock(&qla_tgt_mutex); | |
6019 | ||
f1443eeb QT |
6020 | if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target) |
6021 | ha->tgt.tgt_ops->add_target(base_vha); | |
6022 | ||
2d70c103 NB |
6023 | return 0; |
6024 | } | |
6025 | ||
6026 | /* Must be called under tgt_host_action_mutex */ | |
6027 | int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha) | |
6028 | { | |
0e8cd71c | 6029 | if (!vha->vha_tgt.qla_tgt) |
2d70c103 NB |
6030 | return 0; |
6031 | ||
ddb95145 NB |
6032 | if (vha->fc_vport) { |
6033 | qlt_release(vha->vha_tgt.qla_tgt); | |
6034 | return 0; | |
6035 | } | |
33e79977 QT |
6036 | |
6037 | /* free left over qfull cmds */ | |
6038 | qlt_init_term_exchange(vha); | |
6039 | ||
2d70c103 | 6040 | mutex_lock(&qla_tgt_mutex); |
0e8cd71c | 6041 | list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry); |
2d70c103 NB |
6042 | mutex_unlock(&qla_tgt_mutex); |
6043 | ||
6044 | ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)", | |
6045 | vha->host_no, ha); | |
0e8cd71c | 6046 | qlt_release(vha->vha_tgt.qla_tgt); |
2d70c103 NB |
6047 | |
6048 | return 0; | |
6049 | } | |
6050 | ||
482c9dc7 QT |
6051 | void qlt_remove_target_resources(struct qla_hw_data *ha) |
6052 | { | |
6053 | struct scsi_qla_host *node; | |
6054 | u32 key = 0; | |
6055 | ||
6056 | btree_for_each_safe32(&ha->tgt.host_map, key, node) | |
6057 | btree_remove32(&ha->tgt.host_map, key); | |
6058 | ||
6059 | btree_destroy32(&ha->tgt.host_map); | |
6060 | } | |
6061 | ||
2d70c103 NB |
6062 | static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn, |
6063 | unsigned char *b) | |
6064 | { | |
6065 | int i; | |
6066 | ||
6067 | pr_debug("qla2xxx HW vha->node_name: "); | |
6068 | for (i = 0; i < WWN_SIZE; i++) | |
6069 | pr_debug("%02x ", vha->node_name[i]); | |
6070 | pr_debug("\n"); | |
6071 | pr_debug("qla2xxx HW vha->port_name: "); | |
6072 | for (i = 0; i < WWN_SIZE; i++) | |
6073 | pr_debug("%02x ", vha->port_name[i]); | |
6074 | pr_debug("\n"); | |
6075 | ||
6076 | pr_debug("qla2xxx passed configfs WWPN: "); | |
6077 | put_unaligned_be64(wwpn, b); | |
6078 | for (i = 0; i < WWN_SIZE; i++) | |
6079 | pr_debug("%02x ", b[i]); | |
6080 | pr_debug("\n"); | |
6081 | } | |
6082 | ||
6083 | /** | |
6084 | * qla_tgt_lport_register - register lport with external module | |
6085 | * | |
6086 | * @qla_tgt_ops: Pointer for tcm_qla2xxx qla_tgt_ops | |
6087 | * @wwpn: Passwd FC target WWPN | |
6088 | * @callback: lport initialization callback for tcm_qla2xxx code | |
6089 | * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data | |
6090 | */ | |
49a47f2c NB |
6091 | int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn, |
6092 | u64 npiv_wwpn, u64 npiv_wwnn, | |
6093 | int (*callback)(struct scsi_qla_host *, void *, u64, u64)) | |
2d70c103 NB |
6094 | { |
6095 | struct qla_tgt *tgt; | |
6096 | struct scsi_qla_host *vha; | |
6097 | struct qla_hw_data *ha; | |
6098 | struct Scsi_Host *host; | |
6099 | unsigned long flags; | |
6100 | int rc; | |
6101 | u8 b[WWN_SIZE]; | |
6102 | ||
6103 | mutex_lock(&qla_tgt_mutex); | |
6104 | list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) { | |
6105 | vha = tgt->vha; | |
6106 | ha = vha->hw; | |
6107 | ||
6108 | host = vha->host; | |
6109 | if (!host) | |
6110 | continue; | |
6111 | ||
2d70c103 NB |
6112 | if (!(host->hostt->supported_mode & MODE_TARGET)) |
6113 | continue; | |
6114 | ||
6115 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
49a47f2c | 6116 | if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) { |
2d70c103 NB |
6117 | pr_debug("MODE_TARGET already active on qla2xxx(%d)\n", |
6118 | host->host_no); | |
6119 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6120 | continue; | |
6121 | } | |
ddb95145 NB |
6122 | if (tgt->tgt_stop) { |
6123 | pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n", | |
6124 | host->host_no); | |
6125 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6126 | continue; | |
6127 | } | |
2d70c103 NB |
6128 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
6129 | ||
6130 | if (!scsi_host_get(host)) { | |
6131 | ql_dbg(ql_dbg_tgt, vha, 0xe068, | |
6132 | "Unable to scsi_host_get() for" | |
6133 | " qla2xxx scsi_host\n"); | |
6134 | continue; | |
6135 | } | |
49a47f2c | 6136 | qlt_lport_dump(vha, phys_wwpn, b); |
2d70c103 NB |
6137 | |
6138 | if (memcmp(vha->port_name, b, WWN_SIZE)) { | |
6139 | scsi_host_put(host); | |
6140 | continue; | |
6141 | } | |
49a47f2c NB |
6142 | rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn); |
6143 | if (rc != 0) | |
6144 | scsi_host_put(host); | |
6145 | ||
ddb95145 | 6146 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 NB |
6147 | return rc; |
6148 | } | |
6149 | mutex_unlock(&qla_tgt_mutex); | |
6150 | ||
6151 | return -ENODEV; | |
6152 | } | |
6153 | EXPORT_SYMBOL(qlt_lport_register); | |
6154 | ||
6155 | /** | |
6156 | * qla_tgt_lport_deregister - Degister lport | |
6157 | * | |
6158 | * @vha: Registered scsi_qla_host pointer | |
6159 | */ | |
6160 | void qlt_lport_deregister(struct scsi_qla_host *vha) | |
6161 | { | |
6162 | struct qla_hw_data *ha = vha->hw; | |
6163 | struct Scsi_Host *sh = vha->host; | |
6164 | /* | |
6165 | * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data | |
6166 | */ | |
0e8cd71c | 6167 | vha->vha_tgt.target_lport_ptr = NULL; |
2d70c103 NB |
6168 | ha->tgt.tgt_ops = NULL; |
6169 | /* | |
6170 | * Release the Scsi_Host reference for the underlying qla2xxx host | |
6171 | */ | |
6172 | scsi_host_put(sh); | |
6173 | } | |
6174 | EXPORT_SYMBOL(qlt_lport_deregister); | |
6175 | ||
6176 | /* Must be called under HW lock */ | |
55a9066f | 6177 | static void qlt_set_mode(struct scsi_qla_host *vha) |
2d70c103 | 6178 | { |
2d70c103 NB |
6179 | switch (ql2x_ini_mode) { |
6180 | case QLA2XXX_INI_MODE_DISABLED: | |
6181 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6182 | vha->host->active_mode = MODE_TARGET; | |
6183 | break; | |
6184 | case QLA2XXX_INI_MODE_ENABLED: | |
ead03855 QT |
6185 | vha->host->active_mode = MODE_UNKNOWN; |
6186 | break; | |
6187 | case QLA2XXX_INI_MODE_DUAL: | |
6188 | vha->host->active_mode = MODE_DUAL; | |
2d70c103 NB |
6189 | break; |
6190 | default: | |
6191 | break; | |
6192 | } | |
2d70c103 NB |
6193 | } |
6194 | ||
6195 | /* Must be called under HW lock */ | |
55a9066f | 6196 | static void qlt_clear_mode(struct scsi_qla_host *vha) |
2d70c103 | 6197 | { |
2d70c103 NB |
6198 | switch (ql2x_ini_mode) { |
6199 | case QLA2XXX_INI_MODE_DISABLED: | |
6200 | vha->host->active_mode = MODE_UNKNOWN; | |
6201 | break; | |
6202 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6203 | vha->host->active_mode = MODE_INITIATOR; | |
6204 | break; | |
6205 | case QLA2XXX_INI_MODE_ENABLED: | |
ead03855 QT |
6206 | case QLA2XXX_INI_MODE_DUAL: |
6207 | vha->host->active_mode = MODE_INITIATOR; | |
2d70c103 NB |
6208 | break; |
6209 | default: | |
6210 | break; | |
6211 | } | |
2d70c103 NB |
6212 | } |
6213 | ||
6214 | /* | |
6215 | * qla_tgt_enable_vha - NO LOCK HELD | |
6216 | * | |
6217 | * host_reset, bring up w/ Target Mode Enabled | |
6218 | */ | |
6219 | void | |
6220 | qlt_enable_vha(struct scsi_qla_host *vha) | |
6221 | { | |
6222 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6223 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 6224 | unsigned long flags; |
0e8cd71c | 6225 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
cdb898c5 | 6226 | int rspq_ent = QLA83XX_RSPQ_MSIX_ENTRY_NUMBER; |
2d70c103 NB |
6227 | |
6228 | if (!tgt) { | |
6229 | ql_dbg(ql_dbg_tgt, vha, 0xe069, | |
6230 | "Unable to locate qla_tgt pointer from" | |
6231 | " struct qla_hw_data\n"); | |
6232 | dump_stack(); | |
6233 | return; | |
6234 | } | |
6235 | ||
6236 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6237 | tgt->tgt_stopped = 0; | |
6238 | qlt_set_mode(vha); | |
6239 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6240 | ||
0e8cd71c SK |
6241 | if (vha->vp_idx) { |
6242 | qla24xx_disable_vp(vha); | |
6243 | qla24xx_enable_vp(vha); | |
6244 | } else { | |
cdb898c5 | 6245 | if (ha->msix_entries) { |
83548fe2 | 6246 | ql_dbg(ql_dbg_tgt, vha, 0xe081, |
cdb898c5 QT |
6247 | "%s: host%ld : vector %d cpu %d\n", |
6248 | __func__, vha->host_no, | |
6249 | ha->msix_entries[rspq_ent].vector, | |
6250 | ha->msix_entries[rspq_ent].cpuid); | |
6251 | ||
6252 | ha->tgt.rspq_vector_cpuid = | |
6253 | ha->msix_entries[rspq_ent].cpuid; | |
6254 | } | |
6255 | ||
0e8cd71c SK |
6256 | set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); |
6257 | qla2xxx_wake_dpc(base_vha); | |
6258 | qla2x00_wait_for_hba_online(base_vha); | |
6259 | } | |
2d70c103 NB |
6260 | } |
6261 | EXPORT_SYMBOL(qlt_enable_vha); | |
6262 | ||
6263 | /* | |
6264 | * qla_tgt_disable_vha - NO LOCK HELD | |
6265 | * | |
6266 | * Disable Target Mode and reset the adapter | |
6267 | */ | |
55a9066f | 6268 | static void qlt_disable_vha(struct scsi_qla_host *vha) |
2d70c103 NB |
6269 | { |
6270 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6271 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
6272 | unsigned long flags; |
6273 | ||
6274 | if (!tgt) { | |
6275 | ql_dbg(ql_dbg_tgt, vha, 0xe06a, | |
6276 | "Unable to locate qla_tgt pointer from" | |
6277 | " struct qla_hw_data\n"); | |
6278 | dump_stack(); | |
6279 | return; | |
6280 | } | |
6281 | ||
6282 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6283 | qlt_clear_mode(vha); | |
6284 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6285 | ||
6286 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
6287 | qla2xxx_wake_dpc(vha); | |
6288 | qla2x00_wait_for_hba_online(vha); | |
6289 | } | |
6290 | ||
6291 | /* | |
6292 | * Called from qla_init.c:qla24xx_vport_create() contex to setup | |
6293 | * the target mode specific struct scsi_qla_host and struct qla_hw_data | |
6294 | * members. | |
6295 | */ | |
6296 | void | |
6297 | qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha) | |
6298 | { | |
0e8cd71c SK |
6299 | vha->vha_tgt.qla_tgt = NULL; |
6300 | ||
6301 | mutex_init(&vha->vha_tgt.tgt_mutex); | |
6302 | mutex_init(&vha->vha_tgt.tgt_host_action_mutex); | |
2d70c103 NB |
6303 | |
6304 | qlt_clear_mode(vha); | |
6305 | ||
6306 | /* | |
6307 | * NOTE: Currently the value is kept the same for <24xx and | |
6308 | * >=24xx ISPs. If it is necessary to change it, | |
6309 | * the check should be added for specific ISPs, | |
6310 | * assigning the value appropriately. | |
6311 | */ | |
6312 | ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX; | |
0e8cd71c SK |
6313 | |
6314 | qlt_add_target(ha, vha); | |
2d70c103 NB |
6315 | } |
6316 | ||
6317 | void | |
6318 | qlt_rff_id(struct scsi_qla_host *vha, struct ct_sns_req *ct_req) | |
6319 | { | |
6320 | /* | |
6321 | * FC-4 Feature bit 0 indicates target functionality to the name server. | |
6322 | */ | |
6323 | if (qla_tgt_mode_enabled(vha)) { | |
726b8548 | 6324 | ct_req->req.rff_id.fc4_feature = BIT_0; |
2d70c103 NB |
6325 | } else if (qla_ini_mode_enabled(vha)) { |
6326 | ct_req->req.rff_id.fc4_feature = BIT_1; | |
726b8548 QT |
6327 | } else if (qla_dual_mode_enabled(vha)) |
6328 | ct_req->req.rff_id.fc4_feature = BIT_0 | BIT_1; | |
2d70c103 NB |
6329 | } |
6330 | ||
6331 | /* | |
6332 | * qlt_init_atio_q_entries() - Initializes ATIO queue entries. | |
6333 | * @ha: HA context | |
6334 | * | |
6335 | * Beginning of ATIO ring has initialization control block already built | |
6336 | * by nvram config routine. | |
6337 | * | |
6338 | * Returns 0 on success. | |
6339 | */ | |
6340 | void | |
6341 | qlt_init_atio_q_entries(struct scsi_qla_host *vha) | |
6342 | { | |
6343 | struct qla_hw_data *ha = vha->hw; | |
6344 | uint16_t cnt; | |
6345 | struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring; | |
6346 | ||
ead03855 | 6347 | if (qla_ini_mode_enabled(vha)) |
2d70c103 NB |
6348 | return; |
6349 | ||
6350 | for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) { | |
6351 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6352 | pkt++; | |
6353 | } | |
6354 | ||
6355 | } | |
6356 | ||
6357 | /* | |
6358 | * qlt_24xx_process_atio_queue() - Process ATIO queue entries. | |
6359 | * @ha: SCSI driver HA context | |
6360 | */ | |
6361 | void | |
2f424b9b | 6362 | qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked) |
2d70c103 NB |
6363 | { |
6364 | struct qla_hw_data *ha = vha->hw; | |
2d70c103 NB |
6365 | struct atio_from_isp *pkt; |
6366 | int cnt, i; | |
6367 | ||
ec7193e2 | 6368 | if (!ha->flags.fw_started) |
2d70c103 NB |
6369 | return; |
6370 | ||
5f35509d QT |
6371 | while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) || |
6372 | fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) { | |
2d70c103 NB |
6373 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; |
6374 | cnt = pkt->u.raw.entry_count; | |
6375 | ||
5f35509d QT |
6376 | if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) { |
6377 | /* | |
6378 | * This packet is corrupted. The header + payload | |
6379 | * can not be trusted. There is no point in passing | |
6380 | * it further up. | |
6381 | */ | |
83548fe2 | 6382 | ql_log(ql_log_warn, vha, 0xd03c, |
5f35509d QT |
6383 | "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n", |
6384 | pkt->u.isp24.fcp_hdr.s_id, | |
6385 | be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id), | |
6386 | le32_to_cpu(pkt->u.isp24.exchange_addr), pkt); | |
6387 | ||
6388 | adjust_corrupted_atio(pkt); | |
6389 | qlt_send_term_exchange(vha, NULL, pkt, ha_locked, 0); | |
6390 | } else { | |
6391 | qlt_24xx_atio_pkt_all_vps(vha, | |
6392 | (struct atio_from_isp *)pkt, ha_locked); | |
6393 | } | |
2d70c103 NB |
6394 | |
6395 | for (i = 0; i < cnt; i++) { | |
6396 | ha->tgt.atio_ring_index++; | |
6397 | if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) { | |
6398 | ha->tgt.atio_ring_index = 0; | |
6399 | ha->tgt.atio_ring_ptr = ha->tgt.atio_ring; | |
6400 | } else | |
6401 | ha->tgt.atio_ring_ptr++; | |
6402 | ||
6403 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6404 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; | |
6405 | } | |
6406 | wmb(); | |
6407 | } | |
6408 | ||
6409 | /* Adjust ring index */ | |
aa230bc5 | 6410 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index); |
3761f3e8 | 6411 | RD_REG_DWORD_RELAXED(ISP_ATIO_Q_OUT(vha)); |
2d70c103 NB |
6412 | } |
6413 | ||
6414 | void | |
aa230bc5 | 6415 | qlt_24xx_config_rings(struct scsi_qla_host *vha) |
2d70c103 NB |
6416 | { |
6417 | struct qla_hw_data *ha = vha->hw; | |
aa230bc5 AE |
6418 | if (!QLA_TGT_MODE_ENABLED()) |
6419 | return; | |
2d70c103 | 6420 | |
aa230bc5 AE |
6421 | WRT_REG_DWORD(ISP_ATIO_Q_IN(vha), 0); |
6422 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0); | |
6423 | RD_REG_DWORD(ISP_ATIO_Q_OUT(vha)); | |
6424 | ||
6425 | if (IS_ATIO_MSIX_CAPABLE(ha)) { | |
6426 | struct qla_msix_entry *msix = &ha->msix_entries[2]; | |
6427 | struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb; | |
6428 | ||
6429 | icb->msix_atio = cpu_to_le16(msix->entry); | |
6430 | ql_dbg(ql_dbg_init, vha, 0xf072, | |
6431 | "Registering ICB vector 0x%x for atio que.\n", | |
6432 | msix->entry); | |
2d70c103 NB |
6433 | } |
6434 | } | |
6435 | ||
6436 | void | |
6437 | qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) | |
6438 | { | |
6439 | struct qla_hw_data *ha = vha->hw; | |
99e1b683 QT |
6440 | |
6441 | if (!QLA_TGT_MODE_ENABLED()) | |
6442 | return; | |
2d70c103 | 6443 | |
ead03855 | 6444 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
2d70c103 NB |
6445 | if (!ha->tgt.saved_set) { |
6446 | /* We save only once */ | |
6447 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
6448 | ha->tgt.saved_firmware_options_1 = | |
6449 | nv->firmware_options_1; | |
6450 | ha->tgt.saved_firmware_options_2 = | |
6451 | nv->firmware_options_2; | |
6452 | ha->tgt.saved_firmware_options_3 = | |
6453 | nv->firmware_options_3; | |
6454 | ha->tgt.saved_set = 1; | |
6455 | } | |
6456 | ||
99e1b683 | 6457 | if (qla_tgt_mode_enabled(vha)) |
ead03855 | 6458 | nv->exchange_count = cpu_to_le16(0xFFFF); |
99e1b683 QT |
6459 | else /* dual */ |
6460 | nv->exchange_count = cpu_to_le16(ql2xexchoffld); | |
2d70c103 NB |
6461 | |
6462 | /* Enable target mode */ | |
ad950360 | 6463 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
2d70c103 NB |
6464 | |
6465 | /* Disable ini mode, if requested */ | |
726b8548 | 6466 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 6467 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
2d70c103 NB |
6468 | |
6469 | /* Disable Full Login after LIP */ | |
ad950360 | 6470 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
2d70c103 | 6471 | /* Enable initial LIP */ |
ad950360 | 6472 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
d154f350 AE |
6473 | if (ql2xtgt_tape_enable) |
6474 | /* Enable FC Tape support */ | |
6475 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
6476 | else | |
6477 | /* Disable FC Tape support */ | |
6478 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
6479 | ||
2d70c103 | 6480 | /* Disable Full Login after LIP */ |
ad950360 | 6481 | nv->host_p &= cpu_to_le32(~BIT_10); |
c0f64627 HM |
6482 | |
6483 | /* | |
6484 | * clear BIT 15 explicitly as we have seen at least | |
6485 | * a couple of instances where this was set and this | |
6486 | * was causing the firmware to not be initialized. | |
6487 | */ | |
6488 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
2d70c103 | 6489 | /* Enable target PRLI control */ |
ad950360 | 6490 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
2d70c103 NB |
6491 | } else { |
6492 | if (ha->tgt.saved_set) { | |
6493 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
6494 | nv->firmware_options_1 = | |
6495 | ha->tgt.saved_firmware_options_1; | |
6496 | nv->firmware_options_2 = | |
6497 | ha->tgt.saved_firmware_options_2; | |
6498 | nv->firmware_options_3 = | |
6499 | ha->tgt.saved_firmware_options_3; | |
6500 | } | |
6501 | return; | |
6502 | } | |
6503 | ||
2d70c103 NB |
6504 | if (ha->tgt.enable_class_2) { |
6505 | if (vha->flags.init_done) | |
6506 | fc_host_supported_classes(vha->host) = | |
6507 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
6508 | ||
ad950360 | 6509 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
2d70c103 NB |
6510 | } else { |
6511 | if (vha->flags.init_done) | |
6512 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
6513 | ||
ad950360 | 6514 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
2d70c103 NB |
6515 | } |
6516 | } | |
6517 | ||
6518 | void | |
6519 | qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
6520 | struct init_cb_24xx *icb) | |
6521 | { | |
6522 | struct qla_hw_data *ha = vha->hw; | |
6523 | ||
481ce733 QT |
6524 | if (!QLA_TGT_MODE_ENABLED()) |
6525 | return; | |
6526 | ||
2d70c103 NB |
6527 | if (ha->tgt.node_name_set) { |
6528 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 6529 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
2d70c103 | 6530 | } |
481ce733 QT |
6531 | |
6532 | /* disable ZIO at start time. */ | |
6533 | if (!vha->flags.init_done) { | |
6534 | uint32_t tmp; | |
6535 | tmp = le32_to_cpu(icb->firmware_options_2); | |
6536 | tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
6537 | icb->firmware_options_2 = cpu_to_le32(tmp); | |
6538 | } | |
2d70c103 NB |
6539 | } |
6540 | ||
aa230bc5 AE |
6541 | void |
6542 | qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) | |
6543 | { | |
6544 | struct qla_hw_data *ha = vha->hw; | |
6545 | ||
6546 | if (!QLA_TGT_MODE_ENABLED()) | |
6547 | return; | |
6548 | ||
ead03855 | 6549 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
aa230bc5 AE |
6550 | if (!ha->tgt.saved_set) { |
6551 | /* We save only once */ | |
6552 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
6553 | ha->tgt.saved_firmware_options_1 = | |
6554 | nv->firmware_options_1; | |
6555 | ha->tgt.saved_firmware_options_2 = | |
6556 | nv->firmware_options_2; | |
6557 | ha->tgt.saved_firmware_options_3 = | |
6558 | nv->firmware_options_3; | |
6559 | ha->tgt.saved_set = 1; | |
6560 | } | |
6561 | ||
99e1b683 | 6562 | if (qla_tgt_mode_enabled(vha)) |
ead03855 | 6563 | nv->exchange_count = cpu_to_le16(0xFFFF); |
99e1b683 QT |
6564 | else /* dual */ |
6565 | nv->exchange_count = cpu_to_le16(ql2xexchoffld); | |
aa230bc5 AE |
6566 | |
6567 | /* Enable target mode */ | |
ad950360 | 6568 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
aa230bc5 AE |
6569 | |
6570 | /* Disable ini mode, if requested */ | |
726b8548 | 6571 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 6572 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
aa230bc5 | 6573 | /* Disable Full Login after LIP */ |
ad950360 | 6574 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
aa230bc5 | 6575 | /* Enable initial LIP */ |
ad950360 | 6576 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
c0f64627 HM |
6577 | /* |
6578 | * clear BIT 15 explicitly as we have seen at | |
6579 | * least a couple of instances where this was set | |
6580 | * and this was causing the firmware to not be | |
6581 | * initialized. | |
6582 | */ | |
6583 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
d154f350 AE |
6584 | if (ql2xtgt_tape_enable) |
6585 | /* Enable FC tape support */ | |
6586 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
6587 | else | |
6588 | /* Disable FC tape support */ | |
6589 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
6590 | ||
aa230bc5 | 6591 | /* Disable Full Login after LIP */ |
ad950360 | 6592 | nv->host_p &= cpu_to_le32(~BIT_10); |
aa230bc5 | 6593 | /* Enable target PRLI control */ |
ad950360 | 6594 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
aa230bc5 AE |
6595 | } else { |
6596 | if (ha->tgt.saved_set) { | |
6597 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
6598 | nv->firmware_options_1 = | |
6599 | ha->tgt.saved_firmware_options_1; | |
6600 | nv->firmware_options_2 = | |
6601 | ha->tgt.saved_firmware_options_2; | |
6602 | nv->firmware_options_3 = | |
6603 | ha->tgt.saved_firmware_options_3; | |
6604 | } | |
6605 | return; | |
6606 | } | |
6607 | ||
aa230bc5 AE |
6608 | if (ha->tgt.enable_class_2) { |
6609 | if (vha->flags.init_done) | |
6610 | fc_host_supported_classes(vha->host) = | |
6611 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
6612 | ||
ad950360 | 6613 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
aa230bc5 AE |
6614 | } else { |
6615 | if (vha->flags.init_done) | |
6616 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
6617 | ||
ad950360 | 6618 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
aa230bc5 AE |
6619 | } |
6620 | } | |
6621 | ||
6622 | void | |
6623 | qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
6624 | struct init_cb_81xx *icb) | |
6625 | { | |
6626 | struct qla_hw_data *ha = vha->hw; | |
6627 | ||
6628 | if (!QLA_TGT_MODE_ENABLED()) | |
6629 | return; | |
6630 | ||
6631 | if (ha->tgt.node_name_set) { | |
6632 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 6633 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
aa230bc5 | 6634 | } |
481ce733 QT |
6635 | |
6636 | /* disable ZIO at start time. */ | |
6637 | if (!vha->flags.init_done) { | |
6638 | uint32_t tmp; | |
6639 | tmp = le32_to_cpu(icb->firmware_options_2); | |
6640 | tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
6641 | icb->firmware_options_2 = cpu_to_le32(tmp); | |
6642 | } | |
6643 | ||
aa230bc5 AE |
6644 | } |
6645 | ||
6646 | void | |
6647 | qlt_83xx_iospace_config(struct qla_hw_data *ha) | |
6648 | { | |
6649 | if (!QLA_TGT_MODE_ENABLED()) | |
6650 | return; | |
6651 | ||
6652 | ha->msix_count += 1; /* For ATIO Q */ | |
6653 | } | |
6654 | ||
2d70c103 NB |
6655 | int |
6656 | qlt_24xx_process_response_error(struct scsi_qla_host *vha, | |
6657 | struct sts_entry_24xx *pkt) | |
6658 | { | |
6659 | switch (pkt->entry_type) { | |
6660 | case ABTS_RECV_24XX: | |
6661 | case ABTS_RESP_24XX: | |
6662 | case CTIO_TYPE7: | |
6663 | case NOTIFY_ACK_TYPE: | |
f83adb61 | 6664 | case CTIO_CRC2: |
2d70c103 NB |
6665 | return 1; |
6666 | default: | |
6667 | return 0; | |
6668 | } | |
6669 | } | |
6670 | ||
6671 | void | |
6672 | qlt_modify_vp_config(struct scsi_qla_host *vha, | |
6673 | struct vp_config_entry_24xx *vpmod) | |
6674 | { | |
ead03855 QT |
6675 | /* enable target mode. Bit5 = 1 => disable */ |
6676 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) | |
2d70c103 | 6677 | vpmod->options_idx1 &= ~BIT_5; |
726b8548 | 6678 | |
ead03855 | 6679 | /* Disable ini mode, if requested. bit4 = 1 => disable */ |
726b8548 | 6680 | if (qla_tgt_mode_enabled(vha)) |
2d70c103 NB |
6681 | vpmod->options_idx1 &= ~BIT_4; |
6682 | } | |
6683 | ||
6684 | void | |
6685 | qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) | |
6686 | { | |
482c9dc7 QT |
6687 | int rc; |
6688 | ||
2d70c103 NB |
6689 | if (!QLA_TGT_MODE_ENABLED()) |
6690 | return; | |
6691 | ||
b20f02e1 | 6692 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { |
aa230bc5 AE |
6693 | ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in; |
6694 | ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out; | |
6695 | } else { | |
6696 | ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in; | |
6697 | ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out; | |
6698 | } | |
6699 | ||
0e8cd71c SK |
6700 | mutex_init(&base_vha->vha_tgt.tgt_mutex); |
6701 | mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex); | |
41dc529a QT |
6702 | |
6703 | INIT_LIST_HEAD(&base_vha->unknown_atio_list); | |
6704 | INIT_DELAYED_WORK(&base_vha->unknown_atio_work, | |
6705 | qlt_unknown_atio_work_fn); | |
6706 | ||
2d70c103 | 6707 | qlt_clear_mode(base_vha); |
482c9dc7 QT |
6708 | |
6709 | rc = btree_init32(&ha->tgt.host_map); | |
6710 | if (rc) | |
83548fe2 | 6711 | ql_log(ql_log_info, base_vha, 0xd03d, |
482c9dc7 QT |
6712 | "Unable to initialize ha->host_map btree\n"); |
6713 | ||
6714 | qlt_update_vp_map(base_vha, SET_VP_IDX); | |
2d70c103 NB |
6715 | } |
6716 | ||
aa230bc5 AE |
6717 | irqreturn_t |
6718 | qla83xx_msix_atio_q(int irq, void *dev_id) | |
6719 | { | |
6720 | struct rsp_que *rsp; | |
6721 | scsi_qla_host_t *vha; | |
6722 | struct qla_hw_data *ha; | |
6723 | unsigned long flags; | |
6724 | ||
6725 | rsp = (struct rsp_que *) dev_id; | |
6726 | ha = rsp->hw; | |
6727 | vha = pci_get_drvdata(ha->pdev); | |
6728 | ||
2f424b9b | 6729 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); |
aa230bc5 | 6730 | |
2f424b9b | 6731 | qlt_24xx_process_atio_queue(vha, 0); |
aa230bc5 | 6732 | |
2f424b9b | 6733 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); |
aa230bc5 AE |
6734 | |
6735 | return IRQ_HANDLED; | |
6736 | } | |
6737 | ||
2f424b9b QT |
6738 | static void |
6739 | qlt_handle_abts_recv_work(struct work_struct *work) | |
6740 | { | |
6741 | struct qla_tgt_sess_op *op = container_of(work, | |
6742 | struct qla_tgt_sess_op, work); | |
6743 | scsi_qla_host_t *vha = op->vha; | |
6744 | struct qla_hw_data *ha = vha->hw; | |
6745 | unsigned long flags; | |
6746 | ||
6747 | if (qla2x00_reset_active(vha) || (op->chip_reset != ha->chip_reset)) | |
6748 | return; | |
6749 | ||
6750 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); | |
6751 | qlt_24xx_process_atio_queue(vha, 0); | |
6752 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); | |
6753 | ||
6754 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6755 | qlt_response_pkt_all_vps(vha, (response_t *)&op->atio); | |
6756 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
ae940f2c QT |
6757 | |
6758 | kfree(op); | |
2f424b9b QT |
6759 | } |
6760 | ||
6761 | void | |
6762 | qlt_handle_abts_recv(struct scsi_qla_host *vha, response_t *pkt) | |
6763 | { | |
6764 | struct qla_tgt_sess_op *op; | |
6765 | ||
6766 | op = kzalloc(sizeof(*op), GFP_ATOMIC); | |
6767 | ||
6768 | if (!op) { | |
6769 | /* do not reach for ATIO queue here. This is best effort err | |
6770 | * recovery at this point. | |
6771 | */ | |
6772 | qlt_response_pkt_all_vps(vha, pkt); | |
6773 | return; | |
6774 | } | |
6775 | ||
6776 | memcpy(&op->atio, pkt, sizeof(*pkt)); | |
6777 | op->vha = vha; | |
6778 | op->chip_reset = vha->hw->chip_reset; | |
6779 | INIT_WORK(&op->work, qlt_handle_abts_recv_work); | |
6780 | queue_work(qla_tgt_wq, &op->work); | |
6781 | return; | |
6782 | } | |
6783 | ||
2d70c103 NB |
6784 | int |
6785 | qlt_mem_alloc(struct qla_hw_data *ha) | |
6786 | { | |
6787 | if (!QLA_TGT_MODE_ENABLED()) | |
6788 | return 0; | |
6789 | ||
6790 | ha->tgt.tgt_vp_map = kzalloc(sizeof(struct qla_tgt_vp_map) * | |
6791 | MAX_MULTI_ID_FABRIC, GFP_KERNEL); | |
6792 | if (!ha->tgt.tgt_vp_map) | |
6793 | return -ENOMEM; | |
6794 | ||
6795 | ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev, | |
6796 | (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp), | |
6797 | &ha->tgt.atio_dma, GFP_KERNEL); | |
6798 | if (!ha->tgt.atio_ring) { | |
6799 | kfree(ha->tgt.tgt_vp_map); | |
6800 | return -ENOMEM; | |
6801 | } | |
6802 | return 0; | |
6803 | } | |
6804 | ||
6805 | void | |
6806 | qlt_mem_free(struct qla_hw_data *ha) | |
6807 | { | |
6808 | if (!QLA_TGT_MODE_ENABLED()) | |
6809 | return; | |
6810 | ||
6811 | if (ha->tgt.atio_ring) { | |
6812 | dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) * | |
6813 | sizeof(struct atio_from_isp), ha->tgt.atio_ring, | |
6814 | ha->tgt.atio_dma); | |
6815 | } | |
6816 | kfree(ha->tgt.tgt_vp_map); | |
6817 | } | |
6818 | ||
6819 | /* vport_slock to be held by the caller */ | |
6820 | void | |
6821 | qlt_update_vp_map(struct scsi_qla_host *vha, int cmd) | |
6822 | { | |
482c9dc7 QT |
6823 | void *slot; |
6824 | u32 key; | |
6825 | int rc; | |
6826 | ||
2d70c103 NB |
6827 | if (!QLA_TGT_MODE_ENABLED()) |
6828 | return; | |
6829 | ||
482c9dc7 QT |
6830 | key = vha->d_id.b24; |
6831 | ||
2d70c103 NB |
6832 | switch (cmd) { |
6833 | case SET_VP_IDX: | |
6834 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha; | |
6835 | break; | |
6836 | case SET_AL_PA: | |
482c9dc7 QT |
6837 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); |
6838 | if (!slot) { | |
83548fe2 | 6839 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018, |
482c9dc7 QT |
6840 | "Save vha in host_map %p %06x\n", vha, key); |
6841 | rc = btree_insert32(&vha->hw->tgt.host_map, | |
6842 | key, vha, GFP_ATOMIC); | |
6843 | if (rc) | |
83548fe2 | 6844 | ql_log(ql_log_info, vha, 0xd03e, |
482c9dc7 QT |
6845 | "Unable to insert s_id into host_map: %06x\n", |
6846 | key); | |
6847 | return; | |
6848 | } | |
83548fe2 QT |
6849 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019, |
6850 | "replace existing vha in host_map %p %06x\n", vha, key); | |
482c9dc7 | 6851 | btree_update32(&vha->hw->tgt.host_map, key, vha); |
2d70c103 NB |
6852 | break; |
6853 | case RESET_VP_IDX: | |
6854 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL; | |
6855 | break; | |
6856 | case RESET_AL_PA: | |
83548fe2 | 6857 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a, |
482c9dc7 QT |
6858 | "clear vha in host_map %p %06x\n", vha, key); |
6859 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); | |
6860 | if (slot) | |
6861 | btree_remove32(&vha->hw->tgt.host_map, key); | |
6862 | vha->d_id.b24 = 0; | |
2d70c103 NB |
6863 | break; |
6864 | } | |
6865 | } | |
6866 | ||
482c9dc7 QT |
6867 | void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id) |
6868 | { | |
6869 | unsigned long flags; | |
6870 | struct qla_hw_data *ha = vha->hw; | |
6871 | ||
6872 | if (!vha->d_id.b24) { | |
6873 | spin_lock_irqsave(&ha->vport_slock, flags); | |
6874 | vha->d_id = id; | |
6875 | qlt_update_vp_map(vha, SET_AL_PA); | |
6876 | spin_unlock_irqrestore(&ha->vport_slock, flags); | |
6877 | } else if (vha->d_id.b24 != id.b24) { | |
6878 | spin_lock_irqsave(&ha->vport_slock, flags); | |
6879 | qlt_update_vp_map(vha, RESET_AL_PA); | |
6880 | vha->d_id = id; | |
6881 | qlt_update_vp_map(vha, SET_AL_PA); | |
6882 | spin_unlock_irqrestore(&ha->vport_slock, flags); | |
6883 | } | |
6884 | } | |
6885 | ||
2d70c103 NB |
6886 | static int __init qlt_parse_ini_mode(void) |
6887 | { | |
6888 | if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0) | |
6889 | ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE; | |
6890 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0) | |
6891 | ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED; | |
6892 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0) | |
6893 | ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED; | |
ead03855 QT |
6894 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0) |
6895 | ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL; | |
2d70c103 NB |
6896 | else |
6897 | return false; | |
6898 | ||
6899 | return true; | |
6900 | } | |
6901 | ||
6902 | int __init qlt_init(void) | |
6903 | { | |
6904 | int ret; | |
6905 | ||
6906 | if (!qlt_parse_ini_mode()) { | |
6907 | ql_log(ql_log_fatal, NULL, 0xe06b, | |
6908 | "qlt_parse_ini_mode() failed\n"); | |
6909 | return -EINVAL; | |
6910 | } | |
6911 | ||
6912 | if (!QLA_TGT_MODE_ENABLED()) | |
6913 | return 0; | |
6914 | ||
2d70c103 NB |
6915 | qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep", |
6916 | sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct | |
6917 | qla_tgt_mgmt_cmd), 0, NULL); | |
6918 | if (!qla_tgt_mgmt_cmd_cachep) { | |
83548fe2 | 6919 | ql_log(ql_log_fatal, NULL, 0xd04b, |
2d70c103 | 6920 | "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n"); |
51a07f84 | 6921 | return -ENOMEM; |
2d70c103 NB |
6922 | } |
6923 | ||
b7bd104e | 6924 | qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep", |
5d964837 QT |
6925 | sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t), |
6926 | 0, NULL); | |
b7bd104e AP |
6927 | |
6928 | if (!qla_tgt_plogi_cachep) { | |
6929 | ql_log(ql_log_fatal, NULL, 0xe06d, | |
6930 | "kmem_cache_create for qla_tgt_plogi_cachep failed\n"); | |
6931 | ret = -ENOMEM; | |
6932 | goto out_mgmt_cmd_cachep; | |
6933 | } | |
6934 | ||
2d70c103 NB |
6935 | qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab, |
6936 | mempool_free_slab, qla_tgt_mgmt_cmd_cachep); | |
6937 | if (!qla_tgt_mgmt_cmd_mempool) { | |
6938 | ql_log(ql_log_fatal, NULL, 0xe06e, | |
6939 | "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n"); | |
6940 | ret = -ENOMEM; | |
b7bd104e | 6941 | goto out_plogi_cachep; |
2d70c103 NB |
6942 | } |
6943 | ||
6944 | qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0); | |
6945 | if (!qla_tgt_wq) { | |
6946 | ql_log(ql_log_fatal, NULL, 0xe06f, | |
6947 | "alloc_workqueue for qla_tgt_wq failed\n"); | |
6948 | ret = -ENOMEM; | |
6949 | goto out_cmd_mempool; | |
6950 | } | |
6951 | /* | |
6952 | * Return 1 to signal that initiator-mode is being disabled | |
6953 | */ | |
6954 | return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0; | |
6955 | ||
6956 | out_cmd_mempool: | |
6957 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e AP |
6958 | out_plogi_cachep: |
6959 | kmem_cache_destroy(qla_tgt_plogi_cachep); | |
2d70c103 NB |
6960 | out_mgmt_cmd_cachep: |
6961 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); | |
2d70c103 NB |
6962 | return ret; |
6963 | } | |
6964 | ||
6965 | void qlt_exit(void) | |
6966 | { | |
6967 | if (!QLA_TGT_MODE_ENABLED()) | |
6968 | return; | |
6969 | ||
6970 | destroy_workqueue(qla_tgt_wq); | |
6971 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e | 6972 | kmem_cache_destroy(qla_tgt_plogi_cachep); |
2d70c103 | 6973 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); |
2d70c103 | 6974 | } |