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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 | ||
09620eeb QT |
69 | int ql2xuctrlirq = 1; |
70 | module_param(ql2xuctrlirq, int, 0644); | |
71 | MODULE_PARM_DESC(ql2xuctrlirq, | |
72 | "User to control IRQ placement via smp_affinity." | |
73 | "Valid with qlini_mode=disabled." | |
74 | "1(default): enable"); | |
75 | ||
aa230bc5 | 76 | int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE; |
2d70c103 | 77 | |
33e79977 QT |
78 | static int temp_sam_status = SAM_STAT_BUSY; |
79 | ||
2d70c103 NB |
80 | /* |
81 | * From scsi/fc/fc_fcp.h | |
82 | */ | |
83 | enum fcp_resp_rsp_codes { | |
84 | FCP_TMF_CMPL = 0, | |
85 | FCP_DATA_LEN_INVALID = 1, | |
86 | FCP_CMND_FIELDS_INVALID = 2, | |
87 | FCP_DATA_PARAM_MISMATCH = 3, | |
88 | FCP_TMF_REJECTED = 4, | |
89 | FCP_TMF_FAILED = 5, | |
90 | FCP_TMF_INVALID_LUN = 9, | |
91 | }; | |
92 | ||
93 | /* | |
94 | * fc_pri_ta from scsi/fc/fc_fcp.h | |
95 | */ | |
96 | #define FCP_PTA_SIMPLE 0 /* simple task attribute */ | |
97 | #define FCP_PTA_HEADQ 1 /* head of queue task attribute */ | |
98 | #define FCP_PTA_ORDERED 2 /* ordered task attribute */ | |
6efb3c0a | 99 | #define FCP_PTA_ACA 4 /* auto. contingent allegiance */ |
2d70c103 NB |
100 | #define FCP_PTA_MASK 7 /* mask for task attribute field */ |
101 | #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */ | |
102 | #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */ | |
103 | ||
104 | /* | |
105 | * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which | |
106 | * must be called under HW lock and could unlock/lock it inside. | |
107 | * It isn't an issue, since in the current implementation on the time when | |
108 | * those functions are called: | |
109 | * | |
110 | * - Either context is IRQ and only IRQ handler can modify HW data, | |
111 | * including rings related fields, | |
112 | * | |
113 | * - Or access to target mode variables from struct qla_tgt doesn't | |
114 | * cross those functions boundaries, except tgt_stop, which | |
115 | * additionally protected by irq_cmd_count. | |
116 | */ | |
117 | /* Predefs for callbacks handed to qla2xxx LLD */ | |
118 | static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha, | |
2f424b9b | 119 | struct atio_from_isp *pkt, uint8_t); |
82de802a QT |
120 | static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp, |
121 | response_t *pkt); | |
5d964837 | 122 | static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, |
2d70c103 | 123 | int fn, void *iocb, int flags); |
82de802a | 124 | static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd |
a07100e0 | 125 | *cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort); |
33e79977 QT |
126 | static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, |
127 | struct atio_from_isp *atio, uint16_t status, int qfull); | |
55a9066f | 128 | static void qlt_disable_vha(struct scsi_qla_host *vha); |
b2032fd5 | 129 | static void qlt_clear_tgt_db(struct qla_tgt *tgt); |
82de802a | 130 | static void qlt_send_notify_ack(struct qla_qpair *qpair, |
a6ca8878 AP |
131 | struct imm_ntfy_from_isp *ntfy, |
132 | uint32_t add_flags, uint16_t resp_code, int resp_code_valid, | |
133 | uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan); | |
b7bd104e AP |
134 | static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, |
135 | struct imm_ntfy_from_isp *imm, int ha_locked); | |
726b8548 QT |
136 | static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha, |
137 | fc_port_t *fcport, bool local); | |
138 | void qlt_unreg_sess(struct fc_port *sess); | |
8f6fc8d4 QT |
139 | static void qlt_24xx_handle_abts(struct scsi_qla_host *, |
140 | struct abts_recv_from_24xx *); | |
82de802a QT |
141 | static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *, |
142 | uint16_t); | |
8f6fc8d4 | 143 | |
2d70c103 NB |
144 | /* |
145 | * Global Variables | |
146 | */ | |
2d70c103 | 147 | static struct kmem_cache *qla_tgt_mgmt_cmd_cachep; |
b5d15312 | 148 | struct kmem_cache *qla_tgt_plogi_cachep; |
2d70c103 NB |
149 | static mempool_t *qla_tgt_mgmt_cmd_mempool; |
150 | static struct workqueue_struct *qla_tgt_wq; | |
151 | static DEFINE_MUTEX(qla_tgt_mutex); | |
152 | static LIST_HEAD(qla_tgt_glist); | |
153 | ||
be25152c QT |
154 | static const char *prot_op_str(u32 prot_op) |
155 | { | |
156 | switch (prot_op) { | |
157 | case TARGET_PROT_NORMAL: return "NORMAL"; | |
158 | case TARGET_PROT_DIN_INSERT: return "DIN_INSERT"; | |
159 | case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT"; | |
160 | case TARGET_PROT_DIN_STRIP: return "DIN_STRIP"; | |
161 | case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP"; | |
162 | case TARGET_PROT_DIN_PASS: return "DIN_PASS"; | |
163 | case TARGET_PROT_DOUT_PASS: return "DOUT_PASS"; | |
164 | default: return "UNKNOWN"; | |
165 | } | |
166 | } | |
167 | ||
df673274 AP |
168 | /* This API intentionally takes dest as a parameter, rather than returning |
169 | * int value to avoid caller forgetting to issue wmb() after the store */ | |
170 | void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest) | |
171 | { | |
172 | scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev); | |
173 | *dest = atomic_inc_return(&base_vha->generation_tick); | |
174 | /* memory barrier */ | |
175 | wmb(); | |
176 | } | |
177 | ||
2d70c103 NB |
178 | /* Might release hw lock, then reaquire!! */ |
179 | static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked) | |
180 | { | |
181 | /* Send marker if required */ | |
182 | if (unlikely(vha->marker_needed != 0)) { | |
183 | int rc = qla2x00_issue_marker(vha, vha_locked); | |
184 | if (rc != QLA_SUCCESS) { | |
185 | ql_dbg(ql_dbg_tgt, vha, 0xe03d, | |
186 | "qla_target(%d): issue_marker() failed\n", | |
187 | vha->vp_idx); | |
188 | } | |
189 | return rc; | |
190 | } | |
191 | return QLA_SUCCESS; | |
192 | } | |
193 | ||
194 | static inline | |
195 | struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha, | |
196 | uint8_t *d_id) | |
197 | { | |
482c9dc7 QT |
198 | struct scsi_qla_host *host; |
199 | uint32_t key = 0; | |
2d70c103 | 200 | |
482c9dc7 QT |
201 | if ((vha->d_id.b.area == d_id[1]) && (vha->d_id.b.domain == d_id[0]) && |
202 | (vha->d_id.b.al_pa == d_id[2])) | |
2d70c103 NB |
203 | return vha; |
204 | ||
482c9dc7 QT |
205 | key = (uint32_t)d_id[0] << 16; |
206 | key |= (uint32_t)d_id[1] << 8; | |
207 | key |= (uint32_t)d_id[2]; | |
2d70c103 | 208 | |
482c9dc7 QT |
209 | host = btree_lookup32(&vha->hw->tgt.host_map, key); |
210 | if (!host) | |
83548fe2 QT |
211 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf005, |
212 | "Unable to find host %06x\n", key); | |
482c9dc7 QT |
213 | |
214 | return host; | |
2d70c103 NB |
215 | } |
216 | ||
217 | static inline | |
218 | struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha, | |
219 | uint16_t vp_idx) | |
220 | { | |
221 | struct qla_hw_data *ha = vha->hw; | |
222 | ||
223 | if (vha->vp_idx == vp_idx) | |
224 | return vha; | |
225 | ||
226 | BUG_ON(ha->tgt.tgt_vp_map == NULL); | |
227 | if (likely(test_bit(vp_idx, ha->vp_idx_map))) | |
228 | return ha->tgt.tgt_vp_map[vp_idx].vha; | |
229 | ||
230 | return NULL; | |
231 | } | |
232 | ||
33e79977 QT |
233 | static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha) |
234 | { | |
235 | unsigned long flags; | |
236 | ||
237 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
238 | ||
239 | vha->hw->tgt.num_pend_cmds++; | |
fc90adaf JC |
240 | if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds) |
241 | vha->qla_stats.stat_max_pend_cmds = | |
33e79977 QT |
242 | vha->hw->tgt.num_pend_cmds; |
243 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
244 | } | |
245 | static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha) | |
246 | { | |
247 | unsigned long flags; | |
248 | ||
249 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
250 | vha->hw->tgt.num_pend_cmds--; | |
251 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
252 | } | |
253 | ||
41dc529a QT |
254 | |
255 | static void qlt_queue_unknown_atio(scsi_qla_host_t *vha, | |
82de802a | 256 | struct atio_from_isp *atio, uint8_t ha_locked) |
41dc529a QT |
257 | { |
258 | struct qla_tgt_sess_op *u; | |
259 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
260 | unsigned long flags; | |
261 | ||
262 | if (tgt->tgt_stop) { | |
83548fe2 QT |
263 | ql_dbg(ql_dbg_async, vha, 0x502c, |
264 | "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped", | |
265 | vha->vp_idx); | |
41dc529a QT |
266 | goto out_term; |
267 | } | |
268 | ||
269 | u = kzalloc(sizeof(*u), GFP_ATOMIC); | |
83548fe2 | 270 | if (u == NULL) |
41dc529a | 271 | goto out_term; |
41dc529a QT |
272 | |
273 | u->vha = vha; | |
274 | memcpy(&u->atio, atio, sizeof(*atio)); | |
275 | INIT_LIST_HEAD(&u->cmd_list); | |
276 | ||
277 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
278 | list_add_tail(&u->cmd_list, &vha->unknown_atio_list); | |
279 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
280 | ||
281 | schedule_delayed_work(&vha->unknown_atio_work, 1); | |
282 | ||
283 | out: | |
284 | return; | |
285 | ||
286 | out_term: | |
82de802a | 287 | qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0); |
41dc529a QT |
288 | goto out; |
289 | } | |
290 | ||
291 | static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha, | |
292 | uint8_t ha_locked) | |
293 | { | |
294 | struct qla_tgt_sess_op *u, *t; | |
295 | scsi_qla_host_t *host; | |
296 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
297 | unsigned long flags; | |
298 | uint8_t queued = 0; | |
299 | ||
300 | list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) { | |
301 | if (u->aborted) { | |
83548fe2 QT |
302 | ql_dbg(ql_dbg_async, vha, 0x502e, |
303 | "Freeing unknown %s %p, because of Abort\n", | |
41dc529a | 304 | "ATIO_TYPE7", u); |
82de802a QT |
305 | qlt_send_term_exchange(vha->hw->base_qpair, NULL, |
306 | &u->atio, ha_locked, 0); | |
41dc529a QT |
307 | goto abort; |
308 | } | |
309 | ||
310 | host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id); | |
311 | if (host != NULL) { | |
83548fe2 QT |
312 | ql_dbg(ql_dbg_async, vha, 0x502f, |
313 | "Requeuing unknown ATIO_TYPE7 %p\n", u); | |
41dc529a QT |
314 | qlt_24xx_atio_pkt(host, &u->atio, ha_locked); |
315 | } else if (tgt->tgt_stop) { | |
83548fe2 QT |
316 | ql_dbg(ql_dbg_async, vha, 0x503a, |
317 | "Freeing unknown %s %p, because tgt is being stopped\n", | |
318 | "ATIO_TYPE7", u); | |
82de802a QT |
319 | qlt_send_term_exchange(vha->hw->base_qpair, NULL, |
320 | &u->atio, ha_locked, 0); | |
41dc529a | 321 | } else { |
83548fe2 QT |
322 | ql_dbg(ql_dbg_async, vha, 0x503d, |
323 | "Reschedule u %p, vha %p, host %p\n", u, vha, host); | |
41dc529a QT |
324 | if (!queued) { |
325 | queued = 1; | |
326 | schedule_delayed_work(&vha->unknown_atio_work, | |
327 | 1); | |
328 | } | |
329 | continue; | |
330 | } | |
331 | ||
332 | abort: | |
333 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
334 | list_del(&u->cmd_list); | |
335 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
336 | kfree(u); | |
337 | } | |
338 | } | |
339 | ||
340 | void qlt_unknown_atio_work_fn(struct work_struct *work) | |
341 | { | |
342 | struct scsi_qla_host *vha = container_of(to_delayed_work(work), | |
343 | struct scsi_qla_host, unknown_atio_work); | |
344 | ||
345 | qlt_try_to_dequeue_unknown_atios(vha, 0); | |
346 | } | |
347 | ||
3bb67df5 | 348 | static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, |
2f424b9b | 349 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 | 350 | { |
f83adb61 QT |
351 | ql_dbg(ql_dbg_tgt, vha, 0xe072, |
352 | "%s: qla_target(%d): type %x ox_id %04x\n", | |
353 | __func__, vha->vp_idx, atio->u.raw.entry_type, | |
354 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
355 | ||
2d70c103 NB |
356 | switch (atio->u.raw.entry_type) { |
357 | case ATIO_TYPE7: | |
358 | { | |
359 | struct scsi_qla_host *host = qlt_find_host_by_d_id(vha, | |
360 | atio->u.isp24.fcp_hdr.d_id); | |
361 | if (unlikely(NULL == host)) { | |
362 | ql_dbg(ql_dbg_tgt, vha, 0xe03e, | |
363 | "qla_target(%d): Received ATIO_TYPE7 " | |
364 | "with unknown d_id %x:%x:%x\n", vha->vp_idx, | |
365 | atio->u.isp24.fcp_hdr.d_id[0], | |
366 | atio->u.isp24.fcp_hdr.d_id[1], | |
367 | atio->u.isp24.fcp_hdr.d_id[2]); | |
41dc529a QT |
368 | |
369 | ||
370 | qlt_queue_unknown_atio(vha, atio, ha_locked); | |
2d70c103 NB |
371 | break; |
372 | } | |
41dc529a QT |
373 | if (unlikely(!list_empty(&vha->unknown_atio_list))) |
374 | qlt_try_to_dequeue_unknown_atios(vha, ha_locked); | |
375 | ||
2f424b9b | 376 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
377 | break; |
378 | } | |
379 | ||
380 | case IMMED_NOTIFY_TYPE: | |
381 | { | |
382 | struct scsi_qla_host *host = vha; | |
383 | struct imm_ntfy_from_isp *entry = | |
384 | (struct imm_ntfy_from_isp *)atio; | |
385 | ||
82de802a QT |
386 | qlt_issue_marker(vha, ha_locked); |
387 | ||
2d70c103 NB |
388 | if ((entry->u.isp24.vp_index != 0xFF) && |
389 | (entry->u.isp24.nport_handle != 0xFFFF)) { | |
390 | host = qlt_find_host_by_vp_idx(vha, | |
391 | entry->u.isp24.vp_index); | |
392 | if (unlikely(!host)) { | |
393 | ql_dbg(ql_dbg_tgt, vha, 0xe03f, | |
394 | "qla_target(%d): Received " | |
395 | "ATIO (IMMED_NOTIFY_TYPE) " | |
396 | "with unknown vp_index %d\n", | |
397 | vha->vp_idx, entry->u.isp24.vp_index); | |
398 | break; | |
399 | } | |
400 | } | |
2f424b9b | 401 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
402 | break; |
403 | } | |
404 | ||
41dc529a QT |
405 | case VP_RPT_ID_IOCB_TYPE: |
406 | qla24xx_report_id_acquisition(vha, | |
407 | (struct vp_rpt_id_entry_24xx *)atio); | |
408 | break; | |
409 | ||
410 | case ABTS_RECV_24XX: | |
411 | { | |
412 | struct abts_recv_from_24xx *entry = | |
413 | (struct abts_recv_from_24xx *)atio; | |
414 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
415 | entry->vp_index); | |
8f6fc8d4 QT |
416 | unsigned long flags; |
417 | ||
41dc529a | 418 | if (unlikely(!host)) { |
83548fe2 | 419 | ql_dbg(ql_dbg_tgt, vha, 0xe00a, |
41dc529a QT |
420 | "qla_target(%d): Response pkt (ABTS_RECV_24XX) " |
421 | "received, with unknown vp_index %d\n", | |
422 | vha->vp_idx, entry->vp_index); | |
423 | break; | |
424 | } | |
8f6fc8d4 QT |
425 | if (!ha_locked) |
426 | spin_lock_irqsave(&host->hw->hardware_lock, flags); | |
427 | qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio); | |
428 | if (!ha_locked) | |
429 | spin_unlock_irqrestore(&host->hw->hardware_lock, flags); | |
41dc529a | 430 | break; |
41dc529a QT |
431 | } |
432 | ||
433 | /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */ | |
434 | ||
2d70c103 NB |
435 | default: |
436 | ql_dbg(ql_dbg_tgt, vha, 0xe040, | |
437 | "qla_target(%d): Received unknown ATIO atio " | |
438 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
439 | break; | |
440 | } | |
441 | ||
3bb67df5 | 442 | return false; |
2d70c103 NB |
443 | } |
444 | ||
82de802a QT |
445 | void qlt_response_pkt_all_vps(struct scsi_qla_host *vha, |
446 | struct rsp_que *rsp, response_t *pkt) | |
2d70c103 NB |
447 | { |
448 | switch (pkt->entry_type) { | |
f83adb61 QT |
449 | case CTIO_CRC2: |
450 | ql_dbg(ql_dbg_tgt, vha, 0xe073, | |
451 | "qla_target(%d):%s: CRC2 Response pkt\n", | |
452 | vha->vp_idx, __func__); | |
2d70c103 NB |
453 | case CTIO_TYPE7: |
454 | { | |
455 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
456 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
457 | entry->vp_index); | |
458 | if (unlikely(!host)) { | |
459 | ql_dbg(ql_dbg_tgt, vha, 0xe041, | |
460 | "qla_target(%d): Response pkt (CTIO_TYPE7) " | |
461 | "received, with unknown vp_index %d\n", | |
462 | vha->vp_idx, entry->vp_index); | |
463 | break; | |
464 | } | |
82de802a | 465 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
466 | break; |
467 | } | |
468 | ||
469 | case IMMED_NOTIFY_TYPE: | |
470 | { | |
471 | struct scsi_qla_host *host = vha; | |
472 | struct imm_ntfy_from_isp *entry = | |
473 | (struct imm_ntfy_from_isp *)pkt; | |
474 | ||
475 | host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index); | |
476 | if (unlikely(!host)) { | |
477 | ql_dbg(ql_dbg_tgt, vha, 0xe042, | |
478 | "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) " | |
479 | "received, with unknown vp_index %d\n", | |
480 | vha->vp_idx, entry->u.isp24.vp_index); | |
481 | break; | |
482 | } | |
82de802a | 483 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
484 | break; |
485 | } | |
486 | ||
487 | case NOTIFY_ACK_TYPE: | |
488 | { | |
489 | struct scsi_qla_host *host = vha; | |
490 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
491 | ||
492 | if (0xFF != entry->u.isp24.vp_index) { | |
493 | host = qlt_find_host_by_vp_idx(vha, | |
494 | entry->u.isp24.vp_index); | |
495 | if (unlikely(!host)) { | |
496 | ql_dbg(ql_dbg_tgt, vha, 0xe043, | |
497 | "qla_target(%d): Response " | |
498 | "pkt (NOTIFY_ACK_TYPE) " | |
499 | "received, with unknown " | |
500 | "vp_index %d\n", vha->vp_idx, | |
501 | entry->u.isp24.vp_index); | |
502 | break; | |
503 | } | |
504 | } | |
82de802a | 505 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
506 | break; |
507 | } | |
508 | ||
509 | case ABTS_RECV_24XX: | |
510 | { | |
511 | struct abts_recv_from_24xx *entry = | |
512 | (struct abts_recv_from_24xx *)pkt; | |
513 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
514 | entry->vp_index); | |
515 | if (unlikely(!host)) { | |
516 | ql_dbg(ql_dbg_tgt, vha, 0xe044, | |
517 | "qla_target(%d): Response pkt " | |
518 | "(ABTS_RECV_24XX) received, with unknown " | |
519 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
520 | break; | |
521 | } | |
82de802a | 522 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
523 | break; |
524 | } | |
525 | ||
526 | case ABTS_RESP_24XX: | |
527 | { | |
528 | struct abts_resp_to_24xx *entry = | |
529 | (struct abts_resp_to_24xx *)pkt; | |
530 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
531 | entry->vp_index); | |
532 | if (unlikely(!host)) { | |
533 | ql_dbg(ql_dbg_tgt, vha, 0xe045, | |
534 | "qla_target(%d): Response pkt " | |
535 | "(ABTS_RECV_24XX) received, with unknown " | |
536 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
537 | break; | |
538 | } | |
82de802a | 539 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
540 | break; |
541 | } | |
542 | ||
543 | default: | |
82de802a | 544 | qlt_response_pkt(vha, rsp, pkt); |
2d70c103 NB |
545 | break; |
546 | } | |
547 | ||
548 | } | |
549 | ||
b7bd104e AP |
550 | /* |
551 | * All qlt_plogi_ack_t operations are protected by hardware_lock | |
552 | */ | |
726b8548 QT |
553 | static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport, |
554 | struct imm_ntfy_from_isp *ntfy, int type) | |
555 | { | |
556 | struct qla_work_evt *e; | |
557 | e = qla2x00_alloc_work(vha, QLA_EVT_NACK); | |
558 | if (!e) | |
559 | return QLA_FUNCTION_FAILED; | |
560 | ||
561 | e->u.nack.fcport = fcport; | |
562 | e->u.nack.type = type; | |
563 | memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp)); | |
564 | return qla2x00_post_work(vha, e); | |
565 | } | |
566 | ||
567 | static | |
25ff6af1 | 568 | void qla2x00_async_nack_sp_done(void *s, int res) |
726b8548 | 569 | { |
726b8548 | 570 | struct srb *sp = (struct srb *)s; |
25ff6af1 | 571 | struct scsi_qla_host *vha = sp->vha; |
726b8548 QT |
572 | unsigned long flags; |
573 | ||
83548fe2 QT |
574 | ql_dbg(ql_dbg_disc, vha, 0x20f2, |
575 | "Async done-%s res %x %8phC type %d\n", | |
576 | sp->name, res, sp->fcport->port_name, sp->type); | |
726b8548 QT |
577 | |
578 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
579 | sp->fcport->flags &= ~FCF_ASYNC_SENT; | |
7c3f8fd1 | 580 | sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset; |
726b8548 QT |
581 | |
582 | switch (sp->type) { | |
583 | case SRB_NACK_PLOGI: | |
584 | sp->fcport->login_gen++; | |
585 | sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP; | |
586 | sp->fcport->logout_on_delete = 1; | |
5b33469a | 587 | sp->fcport->plogi_nack_done_deadline = jiffies + HZ; |
3515832c | 588 | sp->fcport->send_els_logo = 0; |
726b8548 QT |
589 | break; |
590 | ||
591 | case SRB_NACK_PRLI: | |
592 | sp->fcport->fw_login_state = DSC_LS_PRLI_COMP; | |
593 | sp->fcport->deleted = 0; | |
3515832c | 594 | sp->fcport->send_els_logo = 0; |
726b8548 QT |
595 | |
596 | if (!sp->fcport->login_succ && | |
597 | !IS_SW_RESV_ADDR(sp->fcport->d_id)) { | |
598 | sp->fcport->login_succ = 1; | |
599 | ||
600 | vha->fcport_count++; | |
601 | ||
602 | if (!IS_IIDMA_CAPABLE(vha->hw) || | |
603 | !vha->hw->flags.gpsc_supported) { | |
83548fe2 QT |
604 | ql_dbg(ql_dbg_disc, vha, 0x20f3, |
605 | "%s %d %8phC post upd_fcport fcp_cnt %d\n", | |
606 | __func__, __LINE__, | |
607 | sp->fcport->port_name, | |
608 | vha->fcport_count); | |
726b8548 QT |
609 | |
610 | qla24xx_post_upd_fcport_work(vha, sp->fcport); | |
611 | } else { | |
83548fe2 QT |
612 | ql_dbg(ql_dbg_disc, vha, 0x20f5, |
613 | "%s %d %8phC post gpsc fcp_cnt %d\n", | |
614 | __func__, __LINE__, | |
615 | sp->fcport->port_name, | |
616 | vha->fcport_count); | |
726b8548 QT |
617 | |
618 | qla24xx_post_gpsc_work(vha, sp->fcport); | |
619 | } | |
620 | } | |
621 | break; | |
622 | ||
623 | case SRB_NACK_LOGO: | |
624 | sp->fcport->login_gen++; | |
625 | sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
626 | qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE); | |
627 | break; | |
628 | } | |
629 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
630 | ||
25ff6af1 | 631 | sp->free(sp); |
726b8548 QT |
632 | } |
633 | ||
634 | int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport, | |
635 | struct imm_ntfy_from_isp *ntfy, int type) | |
636 | { | |
637 | int rval = QLA_FUNCTION_FAILED; | |
638 | srb_t *sp; | |
639 | char *c = NULL; | |
640 | ||
641 | fcport->flags |= FCF_ASYNC_SENT; | |
642 | switch (type) { | |
643 | case SRB_NACK_PLOGI: | |
644 | fcport->fw_login_state = DSC_LS_PLOGI_PEND; | |
645 | c = "PLOGI"; | |
646 | break; | |
647 | case SRB_NACK_PRLI: | |
648 | fcport->fw_login_state = DSC_LS_PRLI_PEND; | |
ec7193e2 | 649 | fcport->deleted = 0; |
726b8548 QT |
650 | c = "PRLI"; |
651 | break; | |
652 | case SRB_NACK_LOGO: | |
653 | fcport->fw_login_state = DSC_LS_LOGO_PEND; | |
654 | c = "LOGO"; | |
655 | break; | |
656 | } | |
657 | ||
658 | sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); | |
659 | if (!sp) | |
660 | goto done; | |
661 | ||
662 | sp->type = type; | |
663 | sp->name = "nack"; | |
664 | ||
665 | qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2); | |
666 | ||
667 | sp->u.iocb_cmd.u.nack.ntfy = ntfy; | |
668 | ||
669 | sp->done = qla2x00_async_nack_sp_done; | |
670 | ||
671 | rval = qla2x00_start_sp(sp); | |
672 | if (rval != QLA_SUCCESS) | |
673 | goto done_free_sp; | |
674 | ||
83548fe2 QT |
675 | ql_dbg(ql_dbg_disc, vha, 0x20f4, |
676 | "Async-%s %8phC hndl %x %s\n", | |
677 | sp->name, fcport->port_name, sp->handle, c); | |
726b8548 QT |
678 | |
679 | return rval; | |
680 | ||
681 | done_free_sp: | |
25ff6af1 | 682 | sp->free(sp); |
726b8548 QT |
683 | done: |
684 | fcport->flags &= ~FCF_ASYNC_SENT; | |
685 | return rval; | |
686 | } | |
687 | ||
688 | void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e) | |
689 | { | |
690 | fc_port_t *t; | |
691 | unsigned long flags; | |
692 | ||
693 | switch (e->u.nack.type) { | |
694 | case SRB_NACK_PRLI: | |
695 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
696 | t = qlt_create_sess(vha, e->u.nack.fcport, 0); | |
697 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
698 | if (t) { | |
83548fe2 | 699 | ql_log(ql_log_info, vha, 0xd034, |
726b8548 QT |
700 | "%s create sess success %p", __func__, t); |
701 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
702 | /* create sess has an extra kref */ | |
703 | vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport); | |
704 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
705 | } | |
706 | break; | |
707 | } | |
708 | qla24xx_async_notify_ack(vha, e->u.nack.fcport, | |
709 | (struct imm_ntfy_from_isp*)e->u.nack.iocb, e->u.nack.type); | |
710 | } | |
711 | ||
712 | void qla24xx_delete_sess_fn(struct work_struct *work) | |
713 | { | |
714 | fc_port_t *fcport = container_of(work, struct fc_port, del_work); | |
715 | struct qla_hw_data *ha = fcport->vha->hw; | |
716 | unsigned long flags; | |
717 | ||
718 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
719 | ||
720 | if (fcport->se_sess) { | |
721 | ha->tgt.tgt_ops->shutdown_sess(fcport); | |
722 | ha->tgt.tgt_ops->put_sess(fcport); | |
723 | } else { | |
724 | qlt_unreg_sess(fcport); | |
725 | } | |
726 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
727 | } | |
728 | ||
729 | /* | |
730 | * Called from qla2x00_reg_remote_port() | |
731 | */ | |
732 | void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) | |
733 | { | |
734 | struct qla_hw_data *ha = vha->hw; | |
735 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
736 | struct fc_port *sess = fcport; | |
737 | unsigned long flags; | |
738 | ||
739 | if (!vha->hw->tgt.tgt_ops) | |
740 | return; | |
741 | ||
742 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
743 | if (tgt->tgt_stop) { | |
744 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
745 | return; | |
746 | } | |
747 | ||
748 | if (fcport->disc_state == DSC_DELETE_PEND) { | |
749 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
750 | return; | |
751 | } | |
752 | ||
753 | if (!sess->se_sess) { | |
754 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
755 | ||
756 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
757 | sess = qlt_create_sess(vha, fcport, false); | |
758 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
759 | ||
760 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
761 | } else { | |
762 | if (fcport->fw_login_state == DSC_LS_PRLI_COMP) { | |
763 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
764 | return; | |
765 | } | |
766 | ||
767 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 768 | ql_dbg(ql_dbg_disc, vha, 0x2107, |
726b8548 QT |
769 | "%s: kref_get fail sess %8phC \n", |
770 | __func__, sess->port_name); | |
771 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
772 | return; | |
773 | } | |
774 | ||
775 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c, | |
776 | "qla_target(%u): %ssession for port %8phC " | |
777 | "(loop ID %d) reappeared\n", vha->vp_idx, | |
778 | sess->local ? "local " : "", sess->port_name, sess->loop_id); | |
779 | ||
780 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007, | |
781 | "Reappeared sess %p\n", sess); | |
782 | ||
783 | ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, | |
784 | fcport->loop_id, | |
785 | (fcport->flags & FCF_CONF_COMP_SUPPORTED)); | |
786 | } | |
787 | ||
788 | if (sess && sess->local) { | |
789 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d, | |
790 | "qla_target(%u): local session for " | |
791 | "port %8phC (loop ID %d) became global\n", vha->vp_idx, | |
792 | fcport->port_name, sess->loop_id); | |
793 | sess->local = 0; | |
794 | } | |
795 | ha->tgt.tgt_ops->put_sess(sess); | |
796 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
797 | } | |
b7bd104e AP |
798 | |
799 | /* | |
800 | * This is a zero-base ref-counting solution, since hardware_lock | |
801 | * guarantees that ref_count is not modified concurrently. | |
802 | * Upon successful return content of iocb is undefined | |
803 | */ | |
5d964837 | 804 | static struct qlt_plogi_ack_t * |
b7bd104e AP |
805 | qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id, |
806 | struct imm_ntfy_from_isp *iocb) | |
807 | { | |
5d964837 | 808 | struct qlt_plogi_ack_t *pla; |
b7bd104e AP |
809 | |
810 | list_for_each_entry(pla, &vha->plogi_ack_list, list) { | |
811 | if (pla->id.b24 == id->b24) { | |
812 | qlt_send_term_imm_notif(vha, &pla->iocb, 1); | |
5d964837 | 813 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
814 | return pla; |
815 | } | |
816 | } | |
817 | ||
818 | pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC); | |
819 | if (!pla) { | |
820 | ql_dbg(ql_dbg_async, vha, 0x5088, | |
821 | "qla_target(%d): Allocation of plogi_ack failed\n", | |
822 | vha->vp_idx); | |
823 | return NULL; | |
824 | } | |
825 | ||
5d964837 | 826 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
827 | pla->id = *id; |
828 | list_add_tail(&pla->list, &vha->plogi_ack_list); | |
829 | ||
830 | return pla; | |
831 | } | |
832 | ||
726b8548 | 833 | void qlt_plogi_ack_unref(struct scsi_qla_host *vha, |
5d964837 | 834 | struct qlt_plogi_ack_t *pla) |
b7bd104e | 835 | { |
5d964837 | 836 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
726b8548 QT |
837 | port_id_t port_id; |
838 | uint16_t loop_id; | |
839 | fc_port_t *fcport = pla->fcport; | |
840 | ||
b7bd104e AP |
841 | BUG_ON(!pla->ref_count); |
842 | pla->ref_count--; | |
843 | ||
844 | if (pla->ref_count) | |
845 | return; | |
846 | ||
726b8548 | 847 | ql_dbg(ql_dbg_disc, vha, 0x5089, |
b7bd104e | 848 | "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x" |
5d964837 QT |
849 | " exch %#x ox_id %#x\n", iocb->u.isp24.port_name, |
850 | iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1], | |
851 | iocb->u.isp24.port_id[0], | |
852 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
853 | iocb->u.isp24.exchange_address, iocb->ox_id); | |
726b8548 QT |
854 | |
855 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
856 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
857 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
858 | port_id.b.rsvd_1 = 0; | |
859 | ||
860 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
861 | ||
862 | fcport->loop_id = loop_id; | |
863 | fcport->d_id = port_id; | |
864 | qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI); | |
865 | ||
866 | list_for_each_entry(fcport, &vha->vp_fcports, list) { | |
867 | if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla) | |
868 | fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; | |
869 | if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla) | |
870 | fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; | |
871 | } | |
b7bd104e AP |
872 | |
873 | list_del(&pla->list); | |
874 | kmem_cache_free(qla_tgt_plogi_cachep, pla); | |
875 | } | |
876 | ||
726b8548 | 877 | void |
5d964837 QT |
878 | qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla, |
879 | struct fc_port *sess, enum qlt_plogi_link_t link) | |
b7bd104e | 880 | { |
5d964837 | 881 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
b7bd104e AP |
882 | /* Inc ref_count first because link might already be pointing at pla */ |
883 | pla->ref_count++; | |
884 | ||
726b8548 QT |
885 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097, |
886 | "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC" | |
887 | " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n", | |
888 | sess, link, sess->port_name, | |
889 | iocb->u.isp24.port_name, iocb->u.isp24.port_id[2], | |
890 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
891 | pla->ref_count, pla, link); | |
892 | ||
b7bd104e AP |
893 | if (sess->plogi_link[link]) |
894 | qlt_plogi_ack_unref(vha, sess->plogi_link[link]); | |
895 | ||
726b8548 QT |
896 | if (link == QLT_PLOGI_LINK_SAME_WWN) |
897 | pla->fcport = sess; | |
b7bd104e AP |
898 | |
899 | sess->plogi_link[link] = pla; | |
900 | } | |
901 | ||
71cdc079 AP |
902 | typedef struct { |
903 | /* These fields must be initialized by the caller */ | |
904 | port_id_t id; | |
905 | /* | |
906 | * number of cmds dropped while we were waiting for | |
907 | * initiator to ack LOGO initialize to 1 if LOGO is | |
908 | * triggered by a command, otherwise, to 0 | |
909 | */ | |
910 | int cmd_count; | |
911 | ||
912 | /* These fields are used by callee */ | |
913 | struct list_head list; | |
914 | } qlt_port_logo_t; | |
915 | ||
916 | static void | |
917 | qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo) | |
918 | { | |
919 | qlt_port_logo_t *tmp; | |
920 | int res; | |
921 | ||
922 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
923 | ||
924 | list_for_each_entry(tmp, &vha->logo_list, list) { | |
925 | if (tmp->id.b24 == logo->id.b24) { | |
926 | tmp->cmd_count += logo->cmd_count; | |
927 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
928 | return; | |
929 | } | |
930 | } | |
931 | ||
932 | list_add_tail(&logo->list, &vha->logo_list); | |
933 | ||
934 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
935 | ||
936 | res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id); | |
937 | ||
938 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
939 | list_del(&logo->list); | |
940 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
941 | ||
b7bd104e AP |
942 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098, |
943 | "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n", | |
944 | logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa, | |
945 | logo->cmd_count, res); | |
71cdc079 AP |
946 | } |
947 | ||
2d70c103 NB |
948 | static void qlt_free_session_done(struct work_struct *work) |
949 | { | |
5d964837 | 950 | struct fc_port *sess = container_of(work, struct fc_port, |
2d70c103 NB |
951 | free_work); |
952 | struct qla_tgt *tgt = sess->tgt; | |
953 | struct scsi_qla_host *vha = sess->vha; | |
954 | struct qla_hw_data *ha = vha->hw; | |
a6ca8878 AP |
955 | unsigned long flags; |
956 | bool logout_started = false; | |
726b8548 | 957 | struct event_arg ea; |
41dc529a | 958 | scsi_qla_host_t *base_vha; |
a6ca8878 AP |
959 | |
960 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084, | |
961 | "%s: se_sess %p / sess %p from port %8phC loop_id %#04x" | |
b7bd104e | 962 | " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n", |
a6ca8878 | 963 | __func__, sess->se_sess, sess, sess->port_name, sess->loop_id, |
37cacc0a | 964 | sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa, |
a6ca8878 | 965 | sess->logout_on_delete, sess->keep_nport_handle, |
b7bd104e | 966 | sess->send_els_logo); |
2d70c103 | 967 | |
726b8548 | 968 | if (!IS_SW_RESV_ADDR(sess->d_id)) { |
41dc529a QT |
969 | if (sess->send_els_logo) { |
970 | qlt_port_logo_t logo; | |
71cdc079 | 971 | |
41dc529a QT |
972 | logo.id = sess->d_id; |
973 | logo.cmd_count = 0; | |
974 | qlt_send_first_logo(vha, &logo); | |
975 | } | |
976 | ||
977 | if (sess->logout_on_delete) { | |
978 | int rc; | |
979 | ||
980 | rc = qla2x00_post_async_logout_work(vha, sess, NULL); | |
981 | if (rc != QLA_SUCCESS) | |
982 | ql_log(ql_log_warn, vha, 0xf085, | |
983 | "Schedule logo failed sess %p rc %d\n", | |
984 | sess, rc); | |
985 | else | |
986 | logout_started = true; | |
987 | } | |
726b8548 | 988 | } |
a6ca8878 | 989 | |
2d70c103 NB |
990 | /* |
991 | * Release the target session for FC Nexus from fabric module code. | |
992 | */ | |
993 | if (sess->se_sess != NULL) | |
994 | ha->tgt.tgt_ops->free_session(sess); | |
995 | ||
a6ca8878 AP |
996 | if (logout_started) { |
997 | bool traced = false; | |
998 | ||
6aa7de05 | 999 | while (!READ_ONCE(sess->logout_completed)) { |
a6ca8878 AP |
1000 | if (!traced) { |
1001 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086, | |
1002 | "%s: waiting for sess %p logout\n", | |
1003 | __func__, sess); | |
1004 | traced = true; | |
1005 | } | |
1006 | msleep(100); | |
1007 | } | |
1008 | ||
726b8548 | 1009 | ql_dbg(ql_dbg_disc, vha, 0xf087, |
41dc529a QT |
1010 | "%s: sess %p logout completed\n",__func__, sess); |
1011 | } | |
1012 | ||
1013 | if (sess->logo_ack_needed) { | |
1014 | sess->logo_ack_needed = 0; | |
1015 | qla24xx_async_notify_ack(vha, sess, | |
1016 | (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO); | |
a6ca8878 AP |
1017 | } |
1018 | ||
726b8548 QT |
1019 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1020 | if (sess->se_sess) { | |
1021 | sess->se_sess = NULL; | |
1022 | if (tgt && !IS_SW_RESV_ADDR(sess->d_id)) | |
1023 | tgt->sess_count--; | |
1024 | } | |
1025 | ||
1026 | sess->disc_state = DSC_DELETED; | |
1027 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1028 | sess->deleted = QLA_SESS_DELETED; | |
1029 | sess->login_retry = vha->hw->login_retry_count; | |
1030 | ||
1031 | if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) { | |
1032 | vha->fcport_count--; | |
1033 | sess->login_succ = 0; | |
1034 | } | |
1035 | ||
7c3f8fd1 | 1036 | if (sess->chip_reset != ha->base_qpair->chip_reset) |
726b8548 QT |
1037 | qla2x00_clear_loop_id(sess); |
1038 | ||
1039 | if (sess->conflict) { | |
1040 | sess->conflict->login_pause = 0; | |
1041 | sess->conflict = NULL; | |
1042 | if (!test_bit(UNLOADING, &vha->dpc_flags)) | |
1043 | set_bit(RELOGIN_NEEDED, &vha->dpc_flags); | |
1044 | } | |
1045 | ||
b7bd104e | 1046 | { |
5d964837 | 1047 | struct qlt_plogi_ack_t *own = |
b7bd104e | 1048 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]; |
5d964837 | 1049 | struct qlt_plogi_ack_t *con = |
b7bd104e | 1050 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]; |
5d964837 | 1051 | struct imm_ntfy_from_isp *iocb; |
b7bd104e AP |
1052 | |
1053 | if (con) { | |
5d964837 | 1054 | iocb = &con->iocb; |
b7bd104e | 1055 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099, |
5d964837 QT |
1056 | "se_sess %p / sess %p port %8phC is gone," |
1057 | " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n", | |
1058 | sess->se_sess, sess, sess->port_name, | |
1059 | own ? "releasing own PLOGI" : "no own PLOGI pending", | |
1060 | own ? own->ref_count : -1, | |
1061 | iocb->u.isp24.port_name, con->ref_count); | |
b7bd104e | 1062 | qlt_plogi_ack_unref(vha, con); |
726b8548 | 1063 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; |
b7bd104e AP |
1064 | } else { |
1065 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a, | |
1066 | "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n", | |
1067 | sess->se_sess, sess, sess->port_name, | |
1068 | own ? "releasing own PLOGI" : | |
1069 | "no own PLOGI pending", | |
1070 | own ? own->ref_count : -1); | |
1071 | } | |
1072 | ||
726b8548 QT |
1073 | if (own) { |
1074 | sess->fw_login_state = DSC_LS_PLOGI_PEND; | |
b7bd104e | 1075 | qlt_plogi_ack_unref(vha, own); |
726b8548 QT |
1076 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; |
1077 | } | |
b7bd104e | 1078 | } |
5d964837 QT |
1079 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
1080 | ||
2d70c103 | 1081 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001, |
726b8548 QT |
1082 | "Unregistration of sess %p %8phC finished fcp_cnt %d\n", |
1083 | sess, sess->port_name, vha->fcport_count); | |
2d70c103 | 1084 | |
726b8548 | 1085 | if (tgt && (tgt->sess_count == 0)) |
2d70c103 | 1086 | wake_up_all(&tgt->waitQ); |
726b8548 QT |
1087 | |
1088 | if (vha->fcport_count == 0) | |
1089 | wake_up_all(&vha->fcport_waitQ); | |
1090 | ||
41dc529a QT |
1091 | base_vha = pci_get_drvdata(ha->pdev); |
1092 | if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) | |
1093 | return; | |
1094 | ||
726b8548 QT |
1095 | if (!tgt || !tgt->tgt_stop) { |
1096 | memset(&ea, 0, sizeof(ea)); | |
1097 | ea.event = FCME_DELETE_DONE; | |
1098 | ea.fcport = sess; | |
1099 | qla2x00_fcport_event_handler(vha, &ea); | |
1100 | } | |
2d70c103 NB |
1101 | } |
1102 | ||
7560151b | 1103 | /* ha->tgt.sess_lock supposed to be held on entry */ |
5d964837 | 1104 | void qlt_unreg_sess(struct fc_port *sess) |
2d70c103 NB |
1105 | { |
1106 | struct scsi_qla_host *vha = sess->vha; | |
1107 | ||
83548fe2 | 1108 | ql_dbg(ql_dbg_disc, sess->vha, 0x210a, |
5d964837 QT |
1109 | "%s sess %p for deletion %8phC\n", |
1110 | __func__, sess, sess->port_name); | |
1111 | ||
36c78452 QT |
1112 | if (sess->se_sess) |
1113 | vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess); | |
2d70c103 | 1114 | |
5d964837 QT |
1115 | qla2x00_mark_device_lost(vha, sess, 1, 1); |
1116 | ||
a6ca8878 | 1117 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; |
726b8548 QT |
1118 | sess->disc_state = DSC_DELETE_PEND; |
1119 | sess->last_rscn_gen = sess->rscn_gen; | |
1120 | sess->last_login_gen = sess->login_gen; | |
2d70c103 | 1121 | |
a5d42f4c DG |
1122 | if (sess->nvme_flag & NVME_FLAG_REGISTERED) |
1123 | schedule_work(&sess->nvme_del_work); | |
1124 | ||
2d70c103 NB |
1125 | INIT_WORK(&sess->free_work, qlt_free_session_done); |
1126 | schedule_work(&sess->free_work); | |
1127 | } | |
5d964837 | 1128 | EXPORT_SYMBOL(qlt_unreg_sess); |
7560151b | 1129 | |
2d70c103 NB |
1130 | static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd) |
1131 | { | |
1132 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 1133 | struct fc_port *sess = NULL; |
2d70c103 NB |
1134 | uint16_t loop_id; |
1135 | int res = 0; | |
1136 | struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb; | |
7560151b | 1137 | unsigned long flags; |
2d70c103 NB |
1138 | |
1139 | loop_id = le16_to_cpu(n->u.isp24.nport_handle); | |
1140 | if (loop_id == 0xFFFF) { | |
2d70c103 | 1141 | /* Global event */ |
b2032fd5 | 1142 | atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); |
7560151b | 1143 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
b2032fd5 | 1144 | qlt_clear_tgt_db(vha->vha_tgt.qla_tgt); |
7560151b | 1145 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 1146 | } else { |
7560151b | 1147 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1148 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b | 1149 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1150 | } |
1151 | ||
1152 | ql_dbg(ql_dbg_tgt, vha, 0xe000, | |
1153 | "Using sess for qla_tgt_reset: %p\n", sess); | |
1154 | if (!sess) { | |
1155 | res = -ESRCH; | |
1156 | return res; | |
1157 | } | |
1158 | ||
1159 | ql_dbg(ql_dbg_tgt, vha, 0xe047, | |
7b833558 OK |
1160 | "scsi(%ld): resetting (session %p from port %8phC mcmd %x, " |
1161 | "loop_id %d)\n", vha->host_no, sess, sess->port_name, | |
2d70c103 NB |
1162 | mcmd, loop_id); |
1163 | ||
bb1181c9 | 1164 | return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK); |
2d70c103 NB |
1165 | } |
1166 | ||
726b8548 QT |
1167 | static void qla24xx_chk_fcp_state(struct fc_port *sess) |
1168 | { | |
7c3f8fd1 | 1169 | if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) { |
726b8548 QT |
1170 | sess->logout_on_delete = 0; |
1171 | sess->logo_ack_needed = 0; | |
1172 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1173 | sess->scan_state = 0; | |
1174 | } | |
1175 | } | |
1176 | ||
7560151b | 1177 | /* ha->tgt.sess_lock supposed to be held on entry */ |
726b8548 | 1178 | void qlt_schedule_sess_for_deletion(struct fc_port *sess, |
2d70c103 NB |
1179 | bool immediate) |
1180 | { | |
1181 | struct qla_tgt *tgt = sess->tgt; | |
2d70c103 | 1182 | |
726b8548 QT |
1183 | if (sess->disc_state == DSC_DELETE_PEND) |
1184 | return; | |
1185 | ||
1186 | if (sess->disc_state == DSC_DELETED) { | |
1187 | if (tgt && tgt->tgt_stop && (tgt->sess_count == 0)) | |
1188 | wake_up_all(&tgt->waitQ); | |
1189 | if (sess->vha->fcport_count == 0) | |
1190 | wake_up_all(&sess->vha->fcport_waitQ); | |
1191 | ||
1192 | if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] && | |
1193 | !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) | |
a6ca8878 AP |
1194 | return; |
1195 | } | |
2d70c103 | 1196 | |
726b8548 | 1197 | sess->disc_state = DSC_DELETE_PEND; |
2d70c103 | 1198 | |
726b8548 QT |
1199 | if (sess->deleted == QLA_SESS_DELETED) |
1200 | sess->logout_on_delete = 0; | |
1201 | ||
1202 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; | |
1203 | qla24xx_chk_fcp_state(sess); | |
2d70c103 | 1204 | |
726b8548 QT |
1205 | ql_dbg(ql_dbg_tgt, sess->vha, 0xe001, |
1206 | "Scheduling sess %p for deletion\n", sess); | |
2d70c103 | 1207 | |
726b8548 QT |
1208 | schedule_work(&sess->del_work); |
1209 | } | |
2d70c103 | 1210 | |
726b8548 QT |
1211 | void qlt_schedule_sess_for_deletion_lock(struct fc_port *sess) |
1212 | { | |
1213 | unsigned long flags; | |
1214 | struct qla_hw_data *ha = sess->vha->hw; | |
1215 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
1216 | qlt_schedule_sess_for_deletion(sess, 1); | |
1217 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
1218 | } |
1219 | ||
7560151b | 1220 | /* ha->tgt.sess_lock supposed to be held on entry */ |
c5701042 | 1221 | static void qlt_clear_tgt_db(struct qla_tgt *tgt) |
2d70c103 | 1222 | { |
5d964837 QT |
1223 | struct fc_port *sess; |
1224 | scsi_qla_host_t *vha = tgt->vha; | |
2d70c103 | 1225 | |
5d964837 QT |
1226 | list_for_each_entry(sess, &vha->vp_fcports, list) { |
1227 | if (sess->se_sess) | |
726b8548 | 1228 | qlt_schedule_sess_for_deletion(sess, 1); |
5d964837 | 1229 | } |
2d70c103 NB |
1230 | |
1231 | /* At this point tgt could be already dead */ | |
1232 | } | |
1233 | ||
1234 | static int qla24xx_get_loop_id(struct scsi_qla_host *vha, const uint8_t *s_id, | |
1235 | uint16_t *loop_id) | |
1236 | { | |
1237 | struct qla_hw_data *ha = vha->hw; | |
1238 | dma_addr_t gid_list_dma; | |
1239 | struct gid_list_info *gid_list; | |
1240 | char *id_iter; | |
1241 | int res, rc, i; | |
1242 | uint16_t entries; | |
1243 | ||
1244 | gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1245 | &gid_list_dma, GFP_KERNEL); | |
1246 | if (!gid_list) { | |
1247 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044, | |
1248 | "qla_target(%d): DMA Alloc failed of %u\n", | |
1249 | vha->vp_idx, qla2x00_gid_list_size(ha)); | |
1250 | return -ENOMEM; | |
1251 | } | |
1252 | ||
1253 | /* Get list of logged in devices */ | |
15f30a57 | 1254 | rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries); |
2d70c103 NB |
1255 | if (rc != QLA_SUCCESS) { |
1256 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045, | |
1257 | "qla_target(%d): get_id_list() failed: %x\n", | |
1258 | vha->vp_idx, rc); | |
71cdc079 | 1259 | res = -EBUSY; |
2d70c103 NB |
1260 | goto out_free_id_list; |
1261 | } | |
1262 | ||
1263 | id_iter = (char *)gid_list; | |
71cdc079 | 1264 | res = -ENOENT; |
2d70c103 NB |
1265 | for (i = 0; i < entries; i++) { |
1266 | struct gid_list_info *gid = (struct gid_list_info *)id_iter; | |
1267 | if ((gid->al_pa == s_id[2]) && | |
1268 | (gid->area == s_id[1]) && | |
1269 | (gid->domain == s_id[0])) { | |
1270 | *loop_id = le16_to_cpu(gid->loop_id); | |
1271 | res = 0; | |
1272 | break; | |
1273 | } | |
1274 | id_iter += ha->gid_list_info_size; | |
1275 | } | |
1276 | ||
1277 | out_free_id_list: | |
1278 | dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1279 | gid_list, gid_list_dma); | |
1280 | return res; | |
1281 | } | |
1282 | ||
2d70c103 NB |
1283 | /* |
1284 | * Adds an extra ref to allow to drop hw lock after adding sess to the list. | |
1285 | * Caller must put it. | |
1286 | */ | |
5d964837 | 1287 | static struct fc_port *qlt_create_sess( |
2d70c103 NB |
1288 | struct scsi_qla_host *vha, |
1289 | fc_port_t *fcport, | |
1290 | bool local) | |
1291 | { | |
1292 | struct qla_hw_data *ha = vha->hw; | |
726b8548 | 1293 | struct fc_port *sess = fcport; |
2d70c103 | 1294 | unsigned long flags; |
2d70c103 | 1295 | |
726b8548 QT |
1296 | if (vha->vha_tgt.qla_tgt->tgt_stop) |
1297 | return NULL; | |
2d70c103 | 1298 | |
726b8548 QT |
1299 | if (fcport->se_sess) { |
1300 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 1301 | ql_dbg(ql_dbg_disc, vha, 0x20f6, |
726b8548 QT |
1302 | "%s: kref_get_unless_zero failed for %8phC\n", |
1303 | __func__, sess->port_name); | |
1304 | return NULL; | |
2d70c103 | 1305 | } |
726b8548 | 1306 | return fcport; |
2d70c103 | 1307 | } |
0e8cd71c | 1308 | sess->tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 1309 | sess->local = local; |
a6ca8878 | 1310 | |
726b8548 QT |
1311 | /* |
1312 | * Under normal circumstances we want to logout from firmware when | |
a6ca8878 AP |
1313 | * session eventually ends and release corresponding nport handle. |
1314 | * In the exception cases (e.g. when new PLOGI is waiting) corresponding | |
726b8548 QT |
1315 | * code will adjust these flags as necessary. |
1316 | */ | |
a6ca8878 AP |
1317 | sess->logout_on_delete = 1; |
1318 | sess->keep_nport_handle = 0; | |
726b8548 | 1319 | sess->logout_completed = 0; |
2d70c103 | 1320 | |
726b8548 QT |
1321 | if (ha->tgt.tgt_ops->check_initiator_node_acl(vha, |
1322 | &fcport->port_name[0], sess) < 0) { | |
83548fe2 | 1323 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015, |
726b8548 QT |
1324 | "(%d) %8phC check_initiator_node_acl failed\n", |
1325 | vha->vp_idx, fcport->port_name); | |
1326 | return NULL; | |
1327 | } else { | |
1328 | kref_init(&fcport->sess_kref); | |
1329 | /* | |
1330 | * Take an extra reference to ->sess_kref here to handle | |
1331 | * fc_port access across ->tgt.sess_lock reaquire. | |
1332 | */ | |
1333 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 1334 | ql_dbg(ql_dbg_disc, vha, 0x20f7, |
726b8548 QT |
1335 | "%s: kref_get_unless_zero failed for %8phC\n", |
1336 | __func__, sess->port_name); | |
1337 | return NULL; | |
1338 | } | |
2d70c103 | 1339 | |
726b8548 QT |
1340 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1341 | if (!IS_SW_RESV_ADDR(sess->d_id)) | |
1342 | vha->vha_tgt.qla_tgt->sess_count++; | |
2d70c103 | 1343 | |
726b8548 QT |
1344 | qlt_do_generation_tick(vha, &sess->generation); |
1345 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1346 | } | |
1347 | ||
1348 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006, | |
1349 | "Adding sess %p se_sess %p to tgt %p sess_count %d\n", | |
1350 | sess, sess->se_sess, vha->vha_tgt.qla_tgt, | |
1351 | vha->vha_tgt.qla_tgt->sess_count); | |
2d70c103 NB |
1352 | |
1353 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b, | |
7b833558 OK |
1354 | "qla_target(%d): %ssession for wwn %8phC (loop_id %d, " |
1355 | "s_id %x:%x:%x, confirmed completion %ssupported) added\n", | |
1356 | vha->vp_idx, local ? "local " : "", fcport->port_name, | |
37cacc0a QT |
1357 | fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area, |
1358 | sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not "); | |
2d70c103 NB |
1359 | |
1360 | return sess; | |
1361 | } | |
1362 | ||
df673274 AP |
1363 | /* |
1364 | * max_gen - specifies maximum session generation | |
1365 | * at which this deletion requestion is still valid | |
1366 | */ | |
1367 | void | |
1368 | qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen) | |
2d70c103 | 1369 | { |
0e8cd71c | 1370 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 1371 | struct fc_port *sess = fcport; |
7560151b | 1372 | unsigned long flags; |
2d70c103 NB |
1373 | |
1374 | if (!vha->hw->tgt.tgt_ops) | |
1375 | return; | |
1376 | ||
b2032fd5 | 1377 | if (!tgt) |
2d70c103 NB |
1378 | return; |
1379 | ||
7560151b | 1380 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
2d70c103 | 1381 | if (tgt->tgt_stop) { |
7560151b | 1382 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1383 | return; |
1384 | } | |
5d964837 | 1385 | if (!sess->se_sess) { |
7560151b | 1386 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1387 | return; |
1388 | } | |
1389 | ||
df673274 | 1390 | if (max_gen - sess->generation < 0) { |
7560151b | 1391 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
df673274 AP |
1392 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092, |
1393 | "Ignoring stale deletion request for se_sess %p / sess %p" | |
1394 | " for port %8phC, req_gen %d, sess_gen %d\n", | |
1395 | sess->se_sess, sess, sess->port_name, max_gen, | |
1396 | sess->generation); | |
1397 | return; | |
1398 | } | |
1399 | ||
2d70c103 NB |
1400 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess); |
1401 | ||
1402 | sess->local = 1; | |
1403 | qlt_schedule_sess_for_deletion(sess, false); | |
7560151b | 1404 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1405 | } |
1406 | ||
1407 | static inline int test_tgt_sess_count(struct qla_tgt *tgt) | |
1408 | { | |
1409 | struct qla_hw_data *ha = tgt->ha; | |
1410 | unsigned long flags; | |
1411 | int res; | |
1412 | /* | |
1413 | * We need to protect against race, when tgt is freed before or | |
1414 | * inside wake_up() | |
1415 | */ | |
726b8548 | 1416 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1417 | ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002, |
5d964837 QT |
1418 | "tgt %p, sess_count=%d\n", |
1419 | tgt, tgt->sess_count); | |
2d70c103 | 1420 | res = (tgt->sess_count == 0); |
726b8548 | 1421 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1422 | |
1423 | return res; | |
1424 | } | |
1425 | ||
1426 | /* Called by tcm_qla2xxx configfs code */ | |
3c231bda | 1427 | int qlt_stop_phase1(struct qla_tgt *tgt) |
2d70c103 NB |
1428 | { |
1429 | struct scsi_qla_host *vha = tgt->vha; | |
1430 | struct qla_hw_data *ha = tgt->ha; | |
1431 | unsigned long flags; | |
1432 | ||
3c231bda NB |
1433 | mutex_lock(&qla_tgt_mutex); |
1434 | if (!vha->fc_vport) { | |
1435 | struct Scsi_Host *sh = vha->host; | |
1436 | struct fc_host_attrs *fc_host = shost_to_fc_host(sh); | |
1437 | bool npiv_vports; | |
1438 | ||
1439 | spin_lock_irqsave(sh->host_lock, flags); | |
1440 | npiv_vports = (fc_host->npiv_vports_inuse); | |
1441 | spin_unlock_irqrestore(sh->host_lock, flags); | |
1442 | ||
1443 | if (npiv_vports) { | |
1444 | mutex_unlock(&qla_tgt_mutex); | |
3a33dc95 QT |
1445 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021, |
1446 | "NPIV is in use. Can not stop target\n"); | |
3c231bda NB |
1447 | return -EPERM; |
1448 | } | |
1449 | } | |
2d70c103 NB |
1450 | if (tgt->tgt_stop || tgt->tgt_stopped) { |
1451 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e, | |
1452 | "Already in tgt->tgt_stop or tgt_stopped state\n"); | |
3c231bda NB |
1453 | mutex_unlock(&qla_tgt_mutex); |
1454 | return -EPERM; | |
2d70c103 NB |
1455 | } |
1456 | ||
3a33dc95 | 1457 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n", |
2d70c103 NB |
1458 | vha->host_no, vha); |
1459 | /* | |
1460 | * Mutex needed to sync with qla_tgt_fc_port_[added,deleted]. | |
1461 | * Lock is needed, because we still can get an incoming packet. | |
1462 | */ | |
0e8cd71c | 1463 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
7560151b | 1464 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1465 | tgt->tgt_stop = 1; |
c5701042 | 1466 | qlt_clear_tgt_db(tgt); |
7560151b | 1467 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
0e8cd71c | 1468 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
3c231bda | 1469 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 | 1470 | |
2d70c103 NB |
1471 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009, |
1472 | "Waiting for sess works (tgt %p)", tgt); | |
1473 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1474 | while (!list_empty(&tgt->sess_works_list)) { | |
1475 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1476 | flush_scheduled_work(); | |
1477 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1478 | } | |
1479 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1480 | ||
1481 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a, | |
5d964837 | 1482 | "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count); |
2d70c103 | 1483 | |
b85e0957 | 1484 | wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ); |
2d70c103 NB |
1485 | |
1486 | /* Big hammer */ | |
ead03855 QT |
1487 | if (!ha->flags.host_shutting_down && |
1488 | (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))) | |
2d70c103 NB |
1489 | qlt_disable_vha(vha); |
1490 | ||
1491 | /* Wait for sessions to clear out (just in case) */ | |
b85e0957 | 1492 | wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ); |
3c231bda | 1493 | return 0; |
2d70c103 NB |
1494 | } |
1495 | EXPORT_SYMBOL(qlt_stop_phase1); | |
1496 | ||
1497 | /* Called by tcm_qla2xxx configfs code */ | |
1498 | void qlt_stop_phase2(struct qla_tgt *tgt) | |
1499 | { | |
3a33dc95 | 1500 | scsi_qla_host_t *vha = tgt->vha; |
2d70c103 NB |
1501 | |
1502 | if (tgt->tgt_stopped) { | |
0e8cd71c | 1503 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f, |
2d70c103 NB |
1504 | "Already in tgt->tgt_stopped state\n"); |
1505 | dump_stack(); | |
1506 | return; | |
1507 | } | |
3a33dc95 QT |
1508 | if (!tgt->tgt_stop) { |
1509 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b, | |
1510 | "%s: phase1 stop is not completed\n", __func__); | |
1511 | dump_stack(); | |
1512 | return; | |
1513 | } | |
2d70c103 | 1514 | |
0e8cd71c | 1515 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
2d70c103 NB |
1516 | tgt->tgt_stop = 0; |
1517 | tgt->tgt_stopped = 1; | |
0e8cd71c | 1518 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
2d70c103 | 1519 | |
3a33dc95 | 1520 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n", |
2d70c103 NB |
1521 | tgt); |
1522 | } | |
1523 | EXPORT_SYMBOL(qlt_stop_phase2); | |
1524 | ||
1525 | /* Called from qlt_remove_target() -> qla2x00_remove_one() */ | |
fa492630 | 1526 | static void qlt_release(struct qla_tgt *tgt) |
2d70c103 | 1527 | { |
0e8cd71c | 1528 | scsi_qla_host_t *vha = tgt->vha; |
e326d22a QT |
1529 | void *node; |
1530 | u64 key = 0; | |
1531 | u16 i; | |
1532 | struct qla_qpair_hint *h; | |
bdbe24de | 1533 | struct qla_hw_data *ha = vha->hw; |
2d70c103 | 1534 | |
3a33dc95 QT |
1535 | if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop && |
1536 | !tgt->tgt_stopped) | |
1537 | qlt_stop_phase1(tgt); | |
1538 | ||
0e8cd71c | 1539 | if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped) |
2d70c103 NB |
1540 | qlt_stop_phase2(tgt); |
1541 | ||
e326d22a QT |
1542 | for (i = 0; i < vha->hw->max_qpairs + 1; i++) { |
1543 | unsigned long flags; | |
1544 | ||
1545 | h = &tgt->qphints[i]; | |
1546 | if (h->qpair) { | |
1547 | spin_lock_irqsave(h->qpair->qp_lock_ptr, flags); | |
1548 | list_del(&h->hint_elem); | |
1549 | spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags); | |
1550 | h->qpair = NULL; | |
1551 | } | |
1552 | } | |
1553 | kfree(tgt->qphints); | |
bdbe24de QT |
1554 | mutex_lock(&qla_tgt_mutex); |
1555 | list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry); | |
1556 | mutex_unlock(&qla_tgt_mutex); | |
e326d22a QT |
1557 | |
1558 | btree_for_each_safe64(&tgt->lun_qpair_map, key, node) | |
1559 | btree_remove64(&tgt->lun_qpair_map, key); | |
1560 | ||
1561 | btree_destroy64(&tgt->lun_qpair_map); | |
1562 | ||
bdbe24de QT |
1563 | if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->remove_target) |
1564 | ha->tgt.tgt_ops->remove_target(vha); | |
1565 | ||
0e8cd71c | 1566 | vha->vha_tgt.qla_tgt = NULL; |
2d70c103 | 1567 | |
0e8cd71c | 1568 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d, |
2d70c103 NB |
1569 | "Release of tgt %p finished\n", tgt); |
1570 | ||
1571 | kfree(tgt); | |
1572 | } | |
1573 | ||
1574 | /* ha->hardware_lock supposed to be held on entry */ | |
1575 | static int qlt_sched_sess_work(struct qla_tgt *tgt, int type, | |
1576 | const void *param, unsigned int param_size) | |
1577 | { | |
1578 | struct qla_tgt_sess_work_param *prm; | |
1579 | unsigned long flags; | |
1580 | ||
1581 | prm = kzalloc(sizeof(*prm), GFP_ATOMIC); | |
1582 | if (!prm) { | |
1583 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050, | |
1584 | "qla_target(%d): Unable to create session " | |
1585 | "work, command will be refused", 0); | |
1586 | return -ENOMEM; | |
1587 | } | |
1588 | ||
1589 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e, | |
1590 | "Scheduling work (type %d, prm %p)" | |
1591 | " to find session for param %p (size %d, tgt %p)\n", | |
1592 | type, prm, param, param_size, tgt); | |
1593 | ||
1594 | prm->type = type; | |
1595 | memcpy(&prm->tm_iocb, param, param_size); | |
1596 | ||
1597 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1598 | list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list); | |
1599 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1600 | ||
1601 | schedule_work(&tgt->sess_work); | |
1602 | ||
1603 | return 0; | |
1604 | } | |
1605 | ||
1606 | /* | |
1607 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1608 | */ | |
82de802a | 1609 | static void qlt_send_notify_ack(struct qla_qpair *qpair, |
2d70c103 NB |
1610 | struct imm_ntfy_from_isp *ntfy, |
1611 | uint32_t add_flags, uint16_t resp_code, int resp_code_valid, | |
1612 | uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan) | |
1613 | { | |
82de802a | 1614 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
1615 | struct qla_hw_data *ha = vha->hw; |
1616 | request_t *pkt; | |
1617 | struct nack_to_isp *nack; | |
1618 | ||
ec7193e2 QT |
1619 | if (!ha->flags.fw_started) |
1620 | return; | |
1621 | ||
2d70c103 NB |
1622 | ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha); |
1623 | ||
82de802a | 1624 | pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL); |
2d70c103 NB |
1625 | if (!pkt) { |
1626 | ql_dbg(ql_dbg_tgt, vha, 0xe049, | |
1627 | "qla_target(%d): %s failed: unable to allocate " | |
1628 | "request packet\n", vha->vp_idx, __func__); | |
1629 | return; | |
1630 | } | |
1631 | ||
0e8cd71c SK |
1632 | if (vha->vha_tgt.qla_tgt != NULL) |
1633 | vha->vha_tgt.qla_tgt->notify_ack_expected++; | |
2d70c103 NB |
1634 | |
1635 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
1636 | pkt->entry_count = 1; | |
1637 | ||
1638 | nack = (struct nack_to_isp *)pkt; | |
1639 | nack->ox_id = ntfy->ox_id; | |
1640 | ||
726b8548 | 1641 | nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE; |
2d70c103 NB |
1642 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; |
1643 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
1644 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
ad950360 | 1645 | cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); |
2d70c103 NB |
1646 | } |
1647 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
1648 | nack->u.isp24.status = ntfy->u.isp24.status; | |
1649 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
aa230bc5 | 1650 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; |
2d70c103 NB |
1651 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; |
1652 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
1653 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
1654 | nack->u.isp24.srr_flags = cpu_to_le16(srr_flags); | |
1655 | nack->u.isp24.srr_reject_code = srr_reject_code; | |
1656 | nack->u.isp24.srr_reject_code_expl = srr_explan; | |
1657 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
1658 | ||
1659 | ql_dbg(ql_dbg_tgt, vha, 0xe005, | |
1660 | "qla_target(%d): Sending 24xx Notify Ack %d\n", | |
1661 | vha->vp_idx, nack->u.isp24.status); | |
1662 | ||
63163e06 HM |
1663 | /* Memory Barrier */ |
1664 | wmb(); | |
82de802a | 1665 | qla2x00_start_iocbs(vha, qpair->req); |
2d70c103 NB |
1666 | } |
1667 | ||
1668 | /* | |
1669 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1670 | */ | |
82de802a | 1671 | static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair, |
2d70c103 NB |
1672 | struct abts_recv_from_24xx *abts, uint32_t status, |
1673 | bool ids_reversed) | |
1674 | { | |
82de802a | 1675 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
1676 | struct qla_hw_data *ha = vha->hw; |
1677 | struct abts_resp_to_24xx *resp; | |
1678 | uint32_t f_ctl; | |
1679 | uint8_t *p; | |
1680 | ||
1681 | ql_dbg(ql_dbg_tgt, vha, 0xe006, | |
1682 | "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n", | |
1683 | ha, abts, status); | |
1684 | ||
82de802a QT |
1685 | resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, |
1686 | NULL); | |
2d70c103 NB |
1687 | if (!resp) { |
1688 | ql_dbg(ql_dbg_tgt, vha, 0xe04a, | |
1689 | "qla_target(%d): %s failed: unable to allocate " | |
1690 | "request packet", vha->vp_idx, __func__); | |
1691 | return; | |
1692 | } | |
1693 | ||
1694 | resp->entry_type = ABTS_RESP_24XX; | |
1695 | resp->entry_count = 1; | |
1696 | resp->nport_handle = abts->nport_handle; | |
1697 | resp->vp_index = vha->vp_idx; | |
1698 | resp->sof_type = abts->sof_type; | |
1699 | resp->exchange_address = abts->exchange_address; | |
1700 | resp->fcp_hdr_le = abts->fcp_hdr_le; | |
ad950360 | 1701 | f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP | |
2d70c103 NB |
1702 | F_CTL_LAST_SEQ | F_CTL_END_SEQ | |
1703 | F_CTL_SEQ_INITIATIVE); | |
1704 | p = (uint8_t *)&f_ctl; | |
1705 | resp->fcp_hdr_le.f_ctl[0] = *p++; | |
1706 | resp->fcp_hdr_le.f_ctl[1] = *p++; | |
1707 | resp->fcp_hdr_le.f_ctl[2] = *p; | |
1708 | if (ids_reversed) { | |
1709 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1710 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1711 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1712 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1713 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1714 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1715 | } else { | |
1716 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1717 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1718 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1719 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1720 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1721 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1722 | } | |
1723 | resp->exchange_addr_to_abort = abts->exchange_addr_to_abort; | |
1724 | if (status == FCP_TMF_CMPL) { | |
1725 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC; | |
1726 | resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID; | |
1727 | resp->payload.ba_acct.low_seq_cnt = 0x0000; | |
1728 | resp->payload.ba_acct.high_seq_cnt = 0xFFFF; | |
1729 | resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id; | |
1730 | resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id; | |
1731 | } else { | |
1732 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT; | |
1733 | resp->payload.ba_rjt.reason_code = | |
1734 | BA_RJT_REASON_CODE_UNABLE_TO_PERFORM; | |
1735 | /* Other bytes are zero */ | |
1736 | } | |
1737 | ||
0e8cd71c | 1738 | vha->vha_tgt.qla_tgt->abts_resp_expected++; |
2d70c103 | 1739 | |
63163e06 HM |
1740 | /* Memory Barrier */ |
1741 | wmb(); | |
8abfa9e2 QT |
1742 | if (qpair->reqq_start_iocbs) |
1743 | qpair->reqq_start_iocbs(qpair); | |
1744 | else | |
1745 | qla2x00_start_iocbs(vha, qpair->req); | |
2d70c103 NB |
1746 | } |
1747 | ||
1748 | /* | |
1749 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1750 | */ | |
1751 | static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha, | |
1752 | struct abts_resp_from_24xx_fw *entry) | |
1753 | { | |
1754 | struct ctio7_to_24xx *ctio; | |
1755 | ||
1756 | ql_dbg(ql_dbg_tgt, vha, 0xe007, | |
1757 | "Sending retry TERM EXCH CTIO7 (ha=%p)\n", vha->hw); | |
2d70c103 | 1758 | |
82de802a QT |
1759 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready( |
1760 | vha->hw->base_qpair, NULL); | |
2d70c103 NB |
1761 | if (ctio == NULL) { |
1762 | ql_dbg(ql_dbg_tgt, vha, 0xe04b, | |
1763 | "qla_target(%d): %s failed: unable to allocate " | |
1764 | "request packet\n", vha->vp_idx, __func__); | |
1765 | return; | |
1766 | } | |
1767 | ||
1768 | /* | |
1769 | * We've got on entrance firmware's response on by us generated | |
1770 | * ABTS response. So, in it ID fields are reversed. | |
1771 | */ | |
1772 | ||
1773 | ctio->entry_type = CTIO_TYPE7; | |
1774 | ctio->entry_count = 1; | |
1775 | ctio->nport_handle = entry->nport_handle; | |
1776 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
ad950360 | 1777 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
1778 | ctio->vp_index = vha->vp_idx; |
1779 | ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0]; | |
1780 | ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1]; | |
1781 | ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2]; | |
1782 | ctio->exchange_addr = entry->exchange_addr_to_abort; | |
ad950360 BVA |
1783 | ctio->u.status1.flags = cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | |
1784 | CTIO7_FLAGS_TERMINATE); | |
33a5fcee | 1785 | ctio->u.status1.ox_id = cpu_to_le16(entry->fcp_hdr_le.ox_id); |
2d70c103 | 1786 | |
63163e06 HM |
1787 | /* Memory Barrier */ |
1788 | wmb(); | |
2d70c103 NB |
1789 | qla2x00_start_iocbs(vha, vha->req); |
1790 | ||
82de802a QT |
1791 | qlt_24xx_send_abts_resp(vha->hw->base_qpair, |
1792 | (struct abts_recv_from_24xx *)entry, | |
2d70c103 NB |
1793 | FCP_TMF_CMPL, true); |
1794 | } | |
1795 | ||
8b2f5ff3 SN |
1796 | static int abort_cmd_for_tag(struct scsi_qla_host *vha, uint32_t tag) |
1797 | { | |
1798 | struct qla_tgt_sess_op *op; | |
1799 | struct qla_tgt_cmd *cmd; | |
8b631d87 | 1800 | unsigned long flags; |
8b2f5ff3 | 1801 | |
8b631d87 | 1802 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1803 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
1804 | if (tag == op->atio.u.isp24.exchange_addr) { | |
1805 | op->aborted = true; | |
8b631d87 | 1806 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1807 | return 1; |
1808 | } | |
1809 | } | |
1810 | ||
41dc529a QT |
1811 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { |
1812 | if (tag == op->atio.u.isp24.exchange_addr) { | |
1813 | op->aborted = true; | |
8b631d87 | 1814 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
41dc529a QT |
1815 | return 1; |
1816 | } | |
1817 | } | |
1818 | ||
8b2f5ff3 SN |
1819 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
1820 | if (tag == cmd->atio.u.isp24.exchange_addr) { | |
193b50b9 | 1821 | cmd->aborted = 1; |
8b631d87 | 1822 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1823 | return 1; |
1824 | } | |
1825 | } | |
8b631d87 | 1826 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 1827 | |
8b2f5ff3 SN |
1828 | return 0; |
1829 | } | |
1830 | ||
1831 | /* drop cmds for the given lun | |
1832 | * XXX only looks for cmds on the port through which lun reset was recieved | |
1833 | * XXX does not go through the list of other port (which may have cmds | |
1834 | * for the same lun) | |
1835 | */ | |
1836 | static void abort_cmds_for_lun(struct scsi_qla_host *vha, | |
f775bd14 | 1837 | u64 lun, uint8_t *s_id) |
8b2f5ff3 SN |
1838 | { |
1839 | struct qla_tgt_sess_op *op; | |
1840 | struct qla_tgt_cmd *cmd; | |
1841 | uint32_t key; | |
8b631d87 | 1842 | unsigned long flags; |
8b2f5ff3 SN |
1843 | |
1844 | key = sid_to_key(s_id); | |
8b631d87 | 1845 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1846 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
1847 | uint32_t op_key; | |
f775bd14 | 1848 | u64 op_lun; |
8b2f5ff3 SN |
1849 | |
1850 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
1851 | op_lun = scsilun_to_int( | |
1852 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
1853 | if (op_key == key && op_lun == lun) | |
1854 | op->aborted = true; | |
1855 | } | |
41dc529a QT |
1856 | |
1857 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
1858 | uint32_t op_key; | |
1859 | u64 op_lun; | |
1860 | ||
1861 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
1862 | op_lun = scsilun_to_int( | |
1863 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
1864 | if (op_key == key && op_lun == lun) | |
1865 | op->aborted = true; | |
1866 | } | |
1867 | ||
8b2f5ff3 SN |
1868 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
1869 | uint32_t cmd_key; | |
f775bd14 | 1870 | u64 cmd_lun; |
8b2f5ff3 SN |
1871 | |
1872 | cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
1873 | cmd_lun = scsilun_to_int( | |
1874 | (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun); | |
1875 | if (cmd_key == key && cmd_lun == lun) | |
193b50b9 | 1876 | cmd->aborted = 1; |
8b2f5ff3 | 1877 | } |
8b631d87 | 1878 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1879 | } |
1880 | ||
2d70c103 NB |
1881 | /* ha->hardware_lock supposed to be held on entry */ |
1882 | static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
5d964837 | 1883 | struct abts_recv_from_24xx *abts, struct fc_port *sess) |
2d70c103 NB |
1884 | { |
1885 | struct qla_hw_data *ha = vha->hw; | |
1886 | struct qla_tgt_mgmt_cmd *mcmd; | |
1887 | int rc; | |
06e97b48 | 1888 | |
eb5ae233 NB |
1889 | if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) { |
1890 | /* send TASK_ABORT response immediately */ | |
48ea2ced | 1891 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_CMPL, false); |
eb5ae233 | 1892 | return 0; |
8b2f5ff3 | 1893 | } |
2d70c103 NB |
1894 | |
1895 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f, | |
1896 | "qla_target(%d): task abort (tag=%d)\n", | |
1897 | vha->vp_idx, abts->exchange_addr_to_abort); | |
1898 | ||
1899 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
1900 | if (mcmd == NULL) { | |
1901 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051, | |
1902 | "qla_target(%d): %s: Allocation of ABORT cmd failed", | |
1903 | vha->vp_idx, __func__); | |
1904 | return -ENOMEM; | |
1905 | } | |
1906 | memset(mcmd, 0, sizeof(*mcmd)); | |
1907 | ||
1908 | mcmd->sess = sess; | |
1909 | memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts)); | |
7c3f8fd1 | 1910 | mcmd->reset_count = ha->base_qpair->chip_reset; |
be92fc3f | 1911 | mcmd->tmr_func = QLA_TGT_ABTS; |
82de802a | 1912 | mcmd->qpair = ha->base_qpair; |
72fcd4eb | 1913 | mcmd->vha = vha; |
2d70c103 | 1914 | |
eb5ae233 NB |
1915 | /* |
1916 | * LUN is looked up by target-core internally based on the passed | |
1917 | * abts->exchange_addr_to_abort tag. | |
1918 | */ | |
1919 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, 0, mcmd->tmr_func, | |
2d70c103 NB |
1920 | abts->exchange_addr_to_abort); |
1921 | if (rc != 0) { | |
1922 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf052, | |
1923 | "qla_target(%d): tgt_ops->handle_tmr()" | |
1924 | " failed: %d", vha->vp_idx, rc); | |
1925 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
1926 | return -EFAULT; | |
1927 | } | |
1928 | ||
1929 | return 0; | |
1930 | } | |
1931 | ||
1932 | /* | |
1933 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1934 | */ | |
1935 | static void qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
1936 | struct abts_recv_from_24xx *abts) | |
1937 | { | |
1938 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 1939 | struct fc_port *sess; |
2d70c103 NB |
1940 | uint32_t tag = abts->exchange_addr_to_abort; |
1941 | uint8_t s_id[3]; | |
1942 | int rc; | |
7560151b | 1943 | unsigned long flags; |
2d70c103 NB |
1944 | |
1945 | if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) { | |
1946 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053, | |
1947 | "qla_target(%d): ABTS: Abort Sequence not " | |
1948 | "supported\n", vha->vp_idx); | |
82de802a QT |
1949 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
1950 | false); | |
2d70c103 NB |
1951 | return; |
1952 | } | |
1953 | ||
1954 | if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) { | |
1955 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010, | |
1956 | "qla_target(%d): ABTS: Unknown Exchange " | |
1957 | "Address received\n", vha->vp_idx); | |
82de802a QT |
1958 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
1959 | false); | |
2d70c103 NB |
1960 | return; |
1961 | } | |
1962 | ||
1963 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011, | |
1964 | "qla_target(%d): task abort (s_id=%x:%x:%x, " | |
1965 | "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id[2], | |
1966 | abts->fcp_hdr_le.s_id[1], abts->fcp_hdr_le.s_id[0], tag, | |
1967 | le32_to_cpu(abts->fcp_hdr_le.parameter)); | |
1968 | ||
1969 | s_id[0] = abts->fcp_hdr_le.s_id[2]; | |
1970 | s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1971 | s_id[2] = abts->fcp_hdr_le.s_id[0]; | |
1972 | ||
7560151b | 1973 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1974 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); |
1975 | if (!sess) { | |
1976 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012, | |
1977 | "qla_target(%d): task abort for non-existant session\n", | |
1978 | vha->vp_idx); | |
0e8cd71c | 1979 | rc = qlt_sched_sess_work(vha->vha_tgt.qla_tgt, |
2d70c103 | 1980 | QLA_TGT_SESS_WORK_ABORT, abts, sizeof(*abts)); |
7560151b QT |
1981 | |
1982 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1983 | ||
2d70c103 | 1984 | if (rc != 0) { |
82de802a QT |
1985 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, |
1986 | FCP_TMF_REJECTED, false); | |
2d70c103 NB |
1987 | } |
1988 | return; | |
1989 | } | |
7560151b QT |
1990 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
1991 | ||
2d70c103 | 1992 | |
726b8548 | 1993 | if (sess->deleted) { |
82de802a QT |
1994 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
1995 | false); | |
e52a8b45 AP |
1996 | return; |
1997 | } | |
1998 | ||
2d70c103 NB |
1999 | rc = __qlt_24xx_handle_abts(vha, abts, sess); |
2000 | if (rc != 0) { | |
2001 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054, | |
2002 | "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n", | |
2003 | vha->vp_idx, rc); | |
82de802a QT |
2004 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
2005 | false); | |
2d70c103 NB |
2006 | return; |
2007 | } | |
2008 | } | |
2009 | ||
2010 | /* | |
2011 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
2012 | */ | |
82de802a | 2013 | static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair, |
2d70c103 NB |
2014 | struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code) |
2015 | { | |
72fcd4eb | 2016 | struct scsi_qla_host *ha = mcmd->vha; |
2d70c103 NB |
2017 | struct atio_from_isp *atio = &mcmd->orig_iocb.atio; |
2018 | struct ctio7_to_24xx *ctio; | |
33a5fcee | 2019 | uint16_t temp; |
2d70c103 NB |
2020 | |
2021 | ql_dbg(ql_dbg_tgt, ha, 0xe008, | |
2022 | "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n", | |
2023 | ha, atio, resp_code); | |
2024 | ||
2d70c103 | 2025 | |
82de802a | 2026 | ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL); |
2d70c103 NB |
2027 | if (ctio == NULL) { |
2028 | ql_dbg(ql_dbg_tgt, ha, 0xe04c, | |
2029 | "qla_target(%d): %s failed: unable to allocate " | |
2030 | "request packet\n", ha->vp_idx, __func__); | |
2031 | return; | |
2032 | } | |
2033 | ||
2034 | ctio->entry_type = CTIO_TYPE7; | |
2035 | ctio->entry_count = 1; | |
2036 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
2037 | ctio->nport_handle = mcmd->sess->loop_id; | |
ad950360 | 2038 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2039 | ctio->vp_index = ha->vp_idx; |
2040 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2041 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2042 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2043 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2044 | temp = (atio->u.isp24.attr << 9)| |
2045 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS; | |
2046 | ctio->u.status1.flags = cpu_to_le16(temp); | |
33a5fcee QT |
2047 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2048 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 | 2049 | ctio->u.status1.scsi_status = |
ad950360 BVA |
2050 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID); |
2051 | ctio->u.status1.response_len = cpu_to_le16(8); | |
e4b11b89 | 2052 | ctio->u.status1.sense_data[0] = resp_code; |
2d70c103 | 2053 | |
63163e06 HM |
2054 | /* Memory Barrier */ |
2055 | wmb(); | |
8abfa9e2 QT |
2056 | if (qpair->reqq_start_iocbs) |
2057 | qpair->reqq_start_iocbs(qpair); | |
2058 | else | |
2059 | qla2x00_start_iocbs(ha, qpair->req); | |
2d70c103 NB |
2060 | } |
2061 | ||
2062 | void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
2063 | { | |
2064 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
2065 | } | |
2066 | EXPORT_SYMBOL(qlt_free_mcmd); | |
2067 | ||
be25152c QT |
2068 | /* |
2069 | * ha->hardware_lock supposed to be held on entry. Might drop it, then | |
2070 | * reacquire | |
2071 | */ | |
8abfa9e2 | 2072 | void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd, |
be25152c QT |
2073 | uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq) |
2074 | { | |
2075 | struct atio_from_isp *atio = &cmd->atio; | |
2076 | struct ctio7_to_24xx *ctio; | |
2077 | uint16_t temp; | |
8abfa9e2 | 2078 | struct scsi_qla_host *vha = cmd->vha; |
be25152c QT |
2079 | |
2080 | ql_dbg(ql_dbg_tgt_dif, vha, 0x3066, | |
2081 | "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, " | |
2082 | "sense_key=%02x, asc=%02x, ascq=%02x", | |
2083 | vha, atio, scsi_status, sense_key, asc, ascq); | |
2084 | ||
2085 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL); | |
2086 | if (!ctio) { | |
2087 | ql_dbg(ql_dbg_async, vha, 0x3067, | |
2088 | "qla2x00t(%ld): %s failed: unable to allocate request packet", | |
2089 | vha->host_no, __func__); | |
2090 | goto out; | |
2091 | } | |
2092 | ||
2093 | ctio->entry_type = CTIO_TYPE7; | |
2094 | ctio->entry_count = 1; | |
2095 | ctio->handle = QLA_TGT_SKIP_HANDLE; | |
2096 | ctio->nport_handle = cmd->sess->loop_id; | |
2097 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); | |
2098 | ctio->vp_index = vha->vp_idx; | |
2099 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2100 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2101 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2102 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2103 | temp = (atio->u.isp24.attr << 9) | |
2104 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS; | |
2105 | ctio->u.status1.flags = cpu_to_le16(temp); | |
be25152c QT |
2106 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2107 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2108 | ctio->u.status1.scsi_status = | |
2109 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status); | |
2110 | ctio->u.status1.response_len = cpu_to_le16(18); | |
2111 | ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio)); | |
2112 | ||
2113 | if (ctio->u.status1.residual != 0) | |
2114 | ctio->u.status1.scsi_status |= | |
2115 | cpu_to_le16(SS_RESIDUAL_UNDER); | |
2116 | ||
2117 | /* Response code and sense key */ | |
2118 | put_unaligned_le32(((0x70 << 24) | (sense_key << 8)), | |
2119 | (&ctio->u.status1.sense_data)[0]); | |
2120 | /* Additional sense length */ | |
2121 | put_unaligned_le32(0x0a, (&ctio->u.status1.sense_data)[1]); | |
2122 | /* ASC and ASCQ */ | |
2123 | put_unaligned_le32(((asc << 24) | (ascq << 16)), | |
2124 | (&ctio->u.status1.sense_data)[3]); | |
2125 | ||
2126 | /* Memory Barrier */ | |
2127 | wmb(); | |
2128 | ||
8abfa9e2 QT |
2129 | if (qpair->reqq_start_iocbs) |
2130 | qpair->reqq_start_iocbs(qpair); | |
2131 | else | |
2132 | qla2x00_start_iocbs(vha, qpair->req); | |
2133 | ||
be25152c QT |
2134 | out: |
2135 | return; | |
2136 | } | |
2137 | ||
2d70c103 NB |
2138 | /* callback from target fabric module code */ |
2139 | void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd) | |
2140 | { | |
2141 | struct scsi_qla_host *vha = mcmd->sess->vha; | |
2142 | struct qla_hw_data *ha = vha->hw; | |
2143 | unsigned long flags; | |
82de802a | 2144 | struct qla_qpair *qpair = mcmd->qpair; |
2d70c103 NB |
2145 | |
2146 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013, | |
2147 | "TM response mcmd (%p) status %#x state %#x", | |
2148 | mcmd, mcmd->fc_tm_rsp, mcmd->flags); | |
2149 | ||
82de802a | 2150 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
b6a029e1 | 2151 | |
7c3f8fd1 | 2152 | if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) { |
b6a029e1 | 2153 | /* |
3bb67df5 | 2154 | * Either the port is not online or this request was from |
b6a029e1 AE |
2155 | * previous life, just abort the processing. |
2156 | */ | |
2157 | ql_dbg(ql_dbg_async, vha, 0xe100, | |
3bb67df5 DKU |
2158 | "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
2159 | vha->flags.online, qla2x00_reset_active(vha), | |
7c3f8fd1 | 2160 | mcmd->reset_count, qpair->chip_reset); |
b6a029e1 | 2161 | ha->tgt.tgt_ops->free_mcmd(mcmd); |
82de802a | 2162 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
b6a029e1 AE |
2163 | return; |
2164 | } | |
2165 | ||
726b8548 QT |
2166 | if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) { |
2167 | if (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
41dc529a QT |
2168 | ELS_LOGO || |
2169 | mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
2170 | ELS_PRLO || | |
2171 | mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == | |
2172 | ELS_TPRLO) { | |
83548fe2 | 2173 | ql_dbg(ql_dbg_disc, vha, 0x2106, |
726b8548 QT |
2174 | "TM response logo %phC status %#x state %#x", |
2175 | mcmd->sess->port_name, mcmd->fc_tm_rsp, | |
2176 | mcmd->flags); | |
2177 | qlt_schedule_sess_for_deletion_lock(mcmd->sess); | |
2178 | } else { | |
82de802a QT |
2179 | qlt_send_notify_ack(vha->hw->base_qpair, |
2180 | &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0); | |
726b8548 QT |
2181 | } |
2182 | } else { | |
d7236ac3 | 2183 | if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) |
82de802a | 2184 | qlt_24xx_send_abts_resp(qpair, &mcmd->orig_iocb.abts, |
2d70c103 NB |
2185 | mcmd->fc_tm_rsp, false); |
2186 | else | |
82de802a | 2187 | qlt_24xx_send_task_mgmt_ctio(qpair, mcmd, |
2d70c103 NB |
2188 | mcmd->fc_tm_rsp); |
2189 | } | |
2190 | /* | |
2191 | * Make the callback for ->free_mcmd() to queue_work() and invoke | |
2192 | * target_put_sess_cmd() to drop cmd_kref to 1. The final | |
2193 | * target_put_sess_cmd() call will be made from TFO->check_stop_free() | |
2194 | * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd | |
2195 | * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() -> | |
2196 | * qlt_xmit_tm_rsp() returns here.. | |
2197 | */ | |
2198 | ha->tgt.tgt_ops->free_mcmd(mcmd); | |
82de802a | 2199 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
2200 | } |
2201 | EXPORT_SYMBOL(qlt_xmit_tm_rsp); | |
2202 | ||
2203 | /* No locks */ | |
2204 | static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm) | |
2205 | { | |
2206 | struct qla_tgt_cmd *cmd = prm->cmd; | |
2207 | ||
2208 | BUG_ON(cmd->sg_cnt == 0); | |
2209 | ||
2210 | prm->sg = (struct scatterlist *)cmd->sg; | |
8abfa9e2 | 2211 | prm->seg_cnt = pci_map_sg(cmd->qpair->pdev, cmd->sg, |
2d70c103 NB |
2212 | cmd->sg_cnt, cmd->dma_data_direction); |
2213 | if (unlikely(prm->seg_cnt == 0)) | |
2214 | goto out_err; | |
2215 | ||
2216 | prm->cmd->sg_mapped = 1; | |
2217 | ||
f83adb61 QT |
2218 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) { |
2219 | /* | |
2220 | * If greater than four sg entries then we need to allocate | |
2221 | * the continuation entries | |
2222 | */ | |
b5399f7d | 2223 | if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX) |
f83adb61 | 2224 | prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt - |
b5399f7d QT |
2225 | QLA_TGT_DATASEGS_PER_CMD_24XX, |
2226 | QLA_TGT_DATASEGS_PER_CONT_24XX); | |
f83adb61 QT |
2227 | } else { |
2228 | /* DIF */ | |
2229 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2230 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2231 | prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz); | |
2232 | prm->tot_dsds = prm->seg_cnt; | |
2233 | } else | |
2234 | prm->tot_dsds = prm->seg_cnt; | |
2235 | ||
2236 | if (cmd->prot_sg_cnt) { | |
2237 | prm->prot_sg = cmd->prot_sg; | |
8abfa9e2 | 2238 | prm->prot_seg_cnt = pci_map_sg(cmd->qpair->pdev, |
f83adb61 QT |
2239 | cmd->prot_sg, cmd->prot_sg_cnt, |
2240 | cmd->dma_data_direction); | |
2241 | if (unlikely(prm->prot_seg_cnt == 0)) | |
2242 | goto out_err; | |
2243 | ||
2244 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2245 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2246 | /* Dif Bundling not support here */ | |
2247 | prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen, | |
2248 | cmd->blk_sz); | |
2249 | prm->tot_dsds += prm->prot_seg_cnt; | |
2250 | } else | |
2251 | prm->tot_dsds += prm->prot_seg_cnt; | |
2252 | } | |
2253 | } | |
2d70c103 | 2254 | |
2d70c103 NB |
2255 | return 0; |
2256 | ||
2257 | out_err: | |
22d84726 | 2258 | ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d, |
2d70c103 NB |
2259 | "qla_target(%d): PCI mapping failed: sg_cnt=%d", |
2260 | 0, prm->cmd->sg_cnt); | |
2261 | return -1; | |
2262 | } | |
2263 | ||
f9b6721a | 2264 | static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) |
2d70c103 | 2265 | { |
8abfa9e2 QT |
2266 | struct qla_hw_data *ha; |
2267 | struct qla_qpair *qpair; | |
f9b6721a JE |
2268 | if (!cmd->sg_mapped) |
2269 | return; | |
2270 | ||
8abfa9e2 QT |
2271 | qpair = cmd->qpair; |
2272 | ||
2273 | pci_unmap_sg(qpair->pdev, cmd->sg, cmd->sg_cnt, | |
2274 | cmd->dma_data_direction); | |
2d70c103 | 2275 | cmd->sg_mapped = 0; |
f83adb61 QT |
2276 | |
2277 | if (cmd->prot_sg_cnt) | |
8abfa9e2 | 2278 | pci_unmap_sg(qpair->pdev, cmd->prot_sg, cmd->prot_sg_cnt, |
f83adb61 QT |
2279 | cmd->dma_data_direction); |
2280 | ||
d5ff0eed JC |
2281 | if (!cmd->ctx) |
2282 | return; | |
8abfa9e2 | 2283 | ha = vha->hw; |
f83adb61 | 2284 | if (cmd->ctx_dsd_alloced) |
d5ff0eed | 2285 | qla2x00_clean_dsd_pool(ha, cmd->ctx); |
f83adb61 | 2286 | |
d5ff0eed | 2287 | dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma); |
2d70c103 NB |
2288 | } |
2289 | ||
82de802a | 2290 | static int qlt_check_reserve_free_req(struct qla_qpair *qpair, |
2d70c103 NB |
2291 | uint32_t req_cnt) |
2292 | { | |
d63b328f | 2293 | uint32_t cnt; |
82de802a | 2294 | struct req_que *req = qpair->req; |
2d70c103 | 2295 | |
82de802a | 2296 | if (req->cnt < (req_cnt + 2)) { |
af7bb382 QT |
2297 | cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr : |
2298 | RD_REG_DWORD_RELAXED(req->req_q_out)); | |
2d70c103 | 2299 | |
82de802a QT |
2300 | if (req->ring_index < cnt) |
2301 | req->cnt = cnt - req->ring_index; | |
2d70c103 | 2302 | else |
82de802a | 2303 | req->cnt = req->length - (req->ring_index - cnt); |
2d70c103 | 2304 | |
82de802a | 2305 | if (unlikely(req->cnt < (req_cnt + 2))) |
bc7095a9 | 2306 | return -EAGAIN; |
2d70c103 | 2307 | } |
bc7095a9 | 2308 | |
82de802a | 2309 | req->cnt -= req_cnt; |
2d70c103 NB |
2310 | |
2311 | return 0; | |
2312 | } | |
2313 | ||
2314 | /* | |
2315 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
2316 | */ | |
82de802a | 2317 | static inline void *qlt_get_req_pkt(struct req_que *req) |
2d70c103 NB |
2318 | { |
2319 | /* Adjust ring index. */ | |
82de802a QT |
2320 | req->ring_index++; |
2321 | if (req->ring_index == req->length) { | |
2322 | req->ring_index = 0; | |
2323 | req->ring_ptr = req->ring; | |
2d70c103 | 2324 | } else { |
82de802a | 2325 | req->ring_ptr++; |
2d70c103 | 2326 | } |
82de802a | 2327 | return (cont_entry_t *)req->ring_ptr; |
2d70c103 NB |
2328 | } |
2329 | ||
2330 | /* ha->hardware_lock supposed to be held on entry */ | |
82de802a | 2331 | static inline uint32_t qlt_make_handle(struct qla_qpair *qpair) |
2d70c103 | 2332 | { |
2d70c103 | 2333 | uint32_t h; |
c5419e26 QT |
2334 | int index; |
2335 | uint8_t found = 0; | |
82de802a | 2336 | struct req_que *req = qpair->req; |
c5419e26 QT |
2337 | |
2338 | h = req->current_outstanding_cmd; | |
2d70c103 | 2339 | |
c5419e26 QT |
2340 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
2341 | h++; | |
2342 | if (h == req->num_outstanding_cmds) | |
2343 | h = 1; | |
2344 | ||
2345 | if (h == QLA_TGT_SKIP_HANDLE) | |
2346 | continue; | |
2347 | ||
2348 | if (!req->outstanding_cmds[h]) { | |
2349 | found = 1; | |
2d70c103 NB |
2350 | break; |
2351 | } | |
c5419e26 | 2352 | } |
2d70c103 | 2353 | |
c5419e26 QT |
2354 | if (found) { |
2355 | req->current_outstanding_cmd = h; | |
2356 | } else { | |
8abfa9e2 QT |
2357 | ql_dbg(ql_dbg_io, qpair->vha, 0x305b, |
2358 | "qla_target(%d): Ran out of empty cmd slots\n", | |
2359 | qpair->vha->vp_idx); | |
c5419e26 QT |
2360 | h = QLA_TGT_NULL_HANDLE; |
2361 | } | |
2d70c103 NB |
2362 | |
2363 | return h; | |
2364 | } | |
2365 | ||
2366 | /* ha->hardware_lock supposed to be held on entry */ | |
82de802a QT |
2367 | static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair, |
2368 | struct qla_tgt_prm *prm) | |
2d70c103 NB |
2369 | { |
2370 | uint32_t h; | |
2371 | struct ctio7_to_24xx *pkt; | |
2d70c103 | 2372 | struct atio_from_isp *atio = &prm->cmd->atio; |
33a5fcee | 2373 | uint16_t temp; |
2d70c103 | 2374 | |
82de802a | 2375 | pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr; |
2d70c103 NB |
2376 | prm->pkt = pkt; |
2377 | memset(pkt, 0, sizeof(*pkt)); | |
2378 | ||
2379 | pkt->entry_type = CTIO_TYPE7; | |
2380 | pkt->entry_count = (uint8_t)prm->req_cnt; | |
22d84726 | 2381 | pkt->vp_index = prm->cmd->vp_idx; |
2d70c103 | 2382 | |
82de802a | 2383 | h = qlt_make_handle(qpair); |
2d70c103 NB |
2384 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { |
2385 | /* | |
2386 | * CTIO type 7 from the firmware doesn't provide a way to | |
2387 | * know the initiator's LOOP ID, hence we can't find | |
2388 | * the session and, so, the command. | |
2389 | */ | |
2390 | return -EAGAIN; | |
e326d22a QT |
2391 | } else |
2392 | qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd; | |
2d70c103 | 2393 | |
82de802a QT |
2394 | pkt->handle = MAKE_HANDLE(qpair->req->id, h); |
2395 | pkt->handle |= CTIO_COMPLETION_HANDLE_MARK; | |
2396 | pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id); | |
ad950360 | 2397 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2398 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
2399 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2400 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2401 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2402 | temp = atio->u.isp24.attr << 9; |
2403 | pkt->u.status0.flags |= cpu_to_le16(temp); | |
33a5fcee QT |
2404 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2405 | pkt->u.status0.ox_id = cpu_to_le16(temp); | |
2d70c103 NB |
2406 | pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset); |
2407 | ||
2d70c103 NB |
2408 | return 0; |
2409 | } | |
2410 | ||
2411 | /* | |
2412 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2413 | * that there is sufficient amount of request entries to not drop it. | |
2414 | */ | |
32d29b4c | 2415 | static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm) |
2d70c103 NB |
2416 | { |
2417 | int cnt; | |
2418 | uint32_t *dword_ptr; | |
2d70c103 NB |
2419 | |
2420 | /* Build continuation packets */ | |
2421 | while (prm->seg_cnt > 0) { | |
2422 | cont_a64_entry_t *cont_pkt64 = | |
82de802a QT |
2423 | (cont_a64_entry_t *)qlt_get_req_pkt( |
2424 | prm->cmd->qpair->req); | |
2d70c103 NB |
2425 | |
2426 | /* | |
2427 | * Make sure that from cont_pkt64 none of | |
2428 | * 64-bit specific fields used for 32-bit | |
2429 | * addressing. Cast to (cont_entry_t *) for | |
2430 | * that. | |
2431 | */ | |
2432 | ||
2433 | memset(cont_pkt64, 0, sizeof(*cont_pkt64)); | |
2434 | ||
2435 | cont_pkt64->entry_count = 1; | |
2436 | cont_pkt64->sys_define = 0; | |
2437 | ||
32d29b4c QT |
2438 | cont_pkt64->entry_type = CONTINUE_A64_TYPE; |
2439 | dword_ptr = (uint32_t *)&cont_pkt64->dseg_0_address; | |
2d70c103 NB |
2440 | |
2441 | /* Load continuation entry data segments */ | |
2442 | for (cnt = 0; | |
b5399f7d | 2443 | cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt; |
2d70c103 NB |
2444 | cnt++, prm->seg_cnt--) { |
2445 | *dword_ptr++ = | |
2446 | cpu_to_le32(pci_dma_lo32 | |
2447 | (sg_dma_address(prm->sg))); | |
32d29b4c QT |
2448 | *dword_ptr++ = cpu_to_le32(pci_dma_hi32 |
2449 | (sg_dma_address(prm->sg))); | |
2d70c103 NB |
2450 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); |
2451 | ||
2d70c103 NB |
2452 | prm->sg = sg_next(prm->sg); |
2453 | } | |
2454 | } | |
2455 | } | |
2456 | ||
2457 | /* | |
2458 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2459 | * that there is sufficient amount of request entries to not drop it. | |
2460 | */ | |
32d29b4c | 2461 | static void qlt_load_data_segments(struct qla_tgt_prm *prm) |
2d70c103 NB |
2462 | { |
2463 | int cnt; | |
2464 | uint32_t *dword_ptr; | |
2d70c103 NB |
2465 | struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt; |
2466 | ||
2d70c103 NB |
2467 | pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen); |
2468 | ||
2469 | /* Setup packet address segment pointer */ | |
2470 | dword_ptr = pkt24->u.status0.dseg_0_address; | |
2471 | ||
2472 | /* Set total data segment count */ | |
2473 | if (prm->seg_cnt) | |
2474 | pkt24->dseg_count = cpu_to_le16(prm->seg_cnt); | |
2475 | ||
2476 | if (prm->seg_cnt == 0) { | |
2477 | /* No data transfer */ | |
2478 | *dword_ptr++ = 0; | |
2479 | *dword_ptr = 0; | |
2480 | return; | |
2481 | } | |
2482 | ||
2483 | /* If scatter gather */ | |
2d70c103 NB |
2484 | |
2485 | /* Load command entry data segments */ | |
2486 | for (cnt = 0; | |
b5399f7d | 2487 | (cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt; |
2d70c103 NB |
2488 | cnt++, prm->seg_cnt--) { |
2489 | *dword_ptr++ = | |
2490 | cpu_to_le32(pci_dma_lo32(sg_dma_address(prm->sg))); | |
32d29b4c QT |
2491 | |
2492 | *dword_ptr++ = cpu_to_le32(pci_dma_hi32( | |
2493 | sg_dma_address(prm->sg))); | |
2494 | ||
2d70c103 NB |
2495 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); |
2496 | ||
2d70c103 NB |
2497 | prm->sg = sg_next(prm->sg); |
2498 | } | |
2499 | ||
32d29b4c | 2500 | qlt_load_cont_data_segments(prm); |
2d70c103 NB |
2501 | } |
2502 | ||
2503 | static inline int qlt_has_data(struct qla_tgt_cmd *cmd) | |
2504 | { | |
2505 | return cmd->bufflen > 0; | |
2506 | } | |
2507 | ||
be25152c QT |
2508 | static void qlt_print_dif_err(struct qla_tgt_prm *prm) |
2509 | { | |
2510 | struct qla_tgt_cmd *cmd; | |
2511 | struct scsi_qla_host *vha; | |
2512 | ||
2513 | /* asc 0x10=dif error */ | |
2514 | if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) { | |
2515 | cmd = prm->cmd; | |
2516 | vha = cmd->vha; | |
2517 | /* ASCQ */ | |
2518 | switch (prm->sense_buffer[13]) { | |
2519 | case 1: | |
83548fe2 | 2520 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b, |
be25152c QT |
2521 | "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2522 | "se_cmd=%p tag[%x]", | |
2523 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2524 | cmd->atio.u.isp24.exchange_addr); | |
2525 | break; | |
2526 | case 2: | |
83548fe2 | 2527 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c, |
be25152c QT |
2528 | "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2529 | "se_cmd=%p tag[%x]", | |
2530 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2531 | cmd->atio.u.isp24.exchange_addr); | |
2532 | break; | |
2533 | case 3: | |
83548fe2 | 2534 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f, |
be25152c QT |
2535 | "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2536 | "se_cmd=%p tag[%x]", | |
2537 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2538 | cmd->atio.u.isp24.exchange_addr); | |
2539 | break; | |
2540 | default: | |
83548fe2 | 2541 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe010, |
be25152c QT |
2542 | "BE detected Dif ERR: lba[%llx|%lld] len[%x] " |
2543 | "se_cmd=%p tag[%x]", | |
2544 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2545 | cmd->atio.u.isp24.exchange_addr); | |
2546 | break; | |
2547 | } | |
83548fe2 | 2548 | ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16); |
be25152c QT |
2549 | } |
2550 | } | |
2551 | ||
2d70c103 NB |
2552 | /* |
2553 | * Called without ha->hardware_lock held | |
2554 | */ | |
2555 | static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd, | |
2556 | struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status, | |
2557 | uint32_t *full_req_cnt) | |
2558 | { | |
2d70c103 | 2559 | struct se_cmd *se_cmd = &cmd->se_cmd; |
22d84726 | 2560 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 | 2561 | |
2d70c103 | 2562 | prm->cmd = cmd; |
7c3f8fd1 QT |
2563 | prm->tgt = cmd->tgt; |
2564 | prm->pkt = NULL; | |
2d70c103 NB |
2565 | prm->rq_result = scsi_status; |
2566 | prm->sense_buffer = &cmd->sense_buffer[0]; | |
2567 | prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER; | |
2568 | prm->sg = NULL; | |
2569 | prm->seg_cnt = -1; | |
2570 | prm->req_cnt = 1; | |
7c3f8fd1 | 2571 | prm->residual = 0; |
2d70c103 | 2572 | prm->add_status_pkt = 0; |
7c3f8fd1 QT |
2573 | prm->prot_sg = NULL; |
2574 | prm->prot_seg_cnt = 0; | |
2575 | prm->tot_dsds = 0; | |
2d70c103 | 2576 | |
2d70c103 NB |
2577 | if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) { |
2578 | if (qlt_pci_map_calc_cnt(prm) != 0) | |
2579 | return -EAGAIN; | |
2580 | } | |
2581 | ||
2582 | *full_req_cnt = prm->req_cnt; | |
2583 | ||
2584 | if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) { | |
2585 | prm->residual = se_cmd->residual_count; | |
22d84726 | 2586 | ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c, |
649ee054 BVA |
2587 | "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2588 | prm->residual, se_cmd->tag, | |
2589 | se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0, | |
2590 | cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2591 | prm->rq_result |= SS_RESIDUAL_UNDER; |
2592 | } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { | |
2593 | prm->residual = se_cmd->residual_count; | |
22d84726 | 2594 | ql_dbg_qp(ql_dbg_io, qpair, 0x305d, |
649ee054 BVA |
2595 | "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2596 | prm->residual, se_cmd->tag, se_cmd->t_task_cdb ? | |
2597 | se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2598 | prm->rq_result |= SS_RESIDUAL_OVER; |
2599 | } | |
2600 | ||
2601 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
2602 | /* | |
2603 | * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be | |
2604 | * ignored in *xmit_response() below | |
2605 | */ | |
2606 | if (qlt_has_data(cmd)) { | |
2607 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer) || | |
7c3f8fd1 | 2608 | (IS_FWI2_CAPABLE(cmd->vha->hw) && |
2d70c103 NB |
2609 | (prm->rq_result != 0))) { |
2610 | prm->add_status_pkt = 1; | |
2611 | (*full_req_cnt)++; | |
2612 | } | |
2613 | } | |
2614 | } | |
2615 | ||
2d70c103 NB |
2616 | return 0; |
2617 | } | |
2618 | ||
7c3f8fd1 QT |
2619 | static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd, |
2620 | int sending_sense) | |
2d70c103 | 2621 | { |
7c3f8fd1 | 2622 | if (cmd->qpair->enable_class_2) |
2d70c103 NB |
2623 | return 0; |
2624 | ||
2625 | if (sending_sense) | |
2626 | return cmd->conf_compl_supported; | |
2627 | else | |
7c3f8fd1 QT |
2628 | return cmd->qpair->enable_explicit_conf && |
2629 | cmd->conf_compl_supported; | |
2d70c103 NB |
2630 | } |
2631 | ||
2d70c103 NB |
2632 | static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio, |
2633 | struct qla_tgt_prm *prm) | |
2634 | { | |
2635 | prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len, | |
2636 | (uint32_t)sizeof(ctio->u.status1.sense_data)); | |
ad950360 | 2637 | ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS); |
7c3f8fd1 | 2638 | if (qlt_need_explicit_conf(prm->cmd, 0)) { |
ad950360 | 2639 | ctio->u.status0.flags |= cpu_to_le16( |
2d70c103 NB |
2640 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2641 | CTIO7_FLAGS_CONFORM_REQ); | |
2642 | } | |
2643 | ctio->u.status0.residual = cpu_to_le32(prm->residual); | |
2644 | ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result); | |
2645 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) { | |
2646 | int i; | |
2647 | ||
7c3f8fd1 | 2648 | if (qlt_need_explicit_conf(prm->cmd, 1)) { |
df2e32c5 | 2649 | if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) { |
22d84726 | 2650 | ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017, |
2d70c103 NB |
2651 | "Skipping EXPLICIT_CONFORM and " |
2652 | "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ " | |
2653 | "non GOOD status\n"); | |
2654 | goto skip_explict_conf; | |
2655 | } | |
ad950360 | 2656 | ctio->u.status1.flags |= cpu_to_le16( |
2d70c103 NB |
2657 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2658 | CTIO7_FLAGS_CONFORM_REQ); | |
2659 | } | |
2660 | skip_explict_conf: | |
2661 | ctio->u.status1.flags &= | |
ad950360 | 2662 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2663 | ctio->u.status1.flags |= |
ad950360 | 2664 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 | 2665 | ctio->u.status1.scsi_status |= |
ad950360 | 2666 | cpu_to_le16(SS_SENSE_LEN_VALID); |
2d70c103 NB |
2667 | ctio->u.status1.sense_length = |
2668 | cpu_to_le16(prm->sense_buffer_len); | |
2669 | for (i = 0; i < prm->sense_buffer_len/4; i++) | |
2670 | ((uint32_t *)ctio->u.status1.sense_data)[i] = | |
2671 | cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]); | |
be25152c QT |
2672 | |
2673 | qlt_print_dif_err(prm); | |
2674 | ||
2d70c103 NB |
2675 | } else { |
2676 | ctio->u.status1.flags &= | |
ad950360 | 2677 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2678 | ctio->u.status1.flags |= |
ad950360 | 2679 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 NB |
2680 | ctio->u.status1.sense_length = 0; |
2681 | memset(ctio->u.status1.sense_data, 0, | |
2682 | sizeof(ctio->u.status1.sense_data)); | |
2683 | } | |
2684 | ||
2685 | /* Sense with len > 24, is it possible ??? */ | |
2686 | } | |
2687 | ||
f83adb61 QT |
2688 | static inline int |
2689 | qlt_hba_err_chk_enabled(struct se_cmd *se_cmd) | |
2690 | { | |
f83adb61 QT |
2691 | switch (se_cmd->prot_op) { |
2692 | case TARGET_PROT_DOUT_INSERT: | |
2693 | case TARGET_PROT_DIN_STRIP: | |
2694 | if (ql2xenablehba_err_chk >= 1) | |
2695 | return 1; | |
2696 | break; | |
2697 | case TARGET_PROT_DOUT_PASS: | |
2698 | case TARGET_PROT_DIN_PASS: | |
2699 | if (ql2xenablehba_err_chk >= 2) | |
2700 | return 1; | |
2701 | break; | |
2702 | case TARGET_PROT_DIN_INSERT: | |
2703 | case TARGET_PROT_DOUT_STRIP: | |
2704 | return 1; | |
2705 | default: | |
2706 | break; | |
2707 | } | |
2708 | return 0; | |
2709 | } | |
2710 | ||
be25152c QT |
2711 | static inline int |
2712 | qla_tgt_ref_mask_check(struct se_cmd *se_cmd) | |
2713 | { | |
2714 | switch (se_cmd->prot_op) { | |
2715 | case TARGET_PROT_DIN_INSERT: | |
2716 | case TARGET_PROT_DOUT_INSERT: | |
2717 | case TARGET_PROT_DIN_STRIP: | |
2718 | case TARGET_PROT_DOUT_STRIP: | |
2719 | case TARGET_PROT_DIN_PASS: | |
2720 | case TARGET_PROT_DOUT_PASS: | |
2721 | return 1; | |
2722 | default: | |
2723 | return 0; | |
2724 | } | |
2725 | return 0; | |
2726 | } | |
2727 | ||
f83adb61 | 2728 | /* |
be25152c | 2729 | * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command |
f83adb61 | 2730 | */ |
be25152c QT |
2731 | static void |
2732 | qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx, | |
2733 | uint16_t *pfw_prot_opts) | |
f83adb61 | 2734 | { |
be25152c | 2735 | struct se_cmd *se_cmd = &cmd->se_cmd; |
f83adb61 | 2736 | uint32_t lba = 0xffffffff & se_cmd->t_task_lba; |
be25152c QT |
2737 | scsi_qla_host_t *vha = cmd->tgt->vha; |
2738 | struct qla_hw_data *ha = vha->hw; | |
2739 | uint32_t t32 = 0; | |
f83adb61 | 2740 | |
be25152c QT |
2741 | /* |
2742 | * wait till Mode Sense/Select cmd, modepage Ah, subpage 2 | |
f83adb61 QT |
2743 | * have been immplemented by TCM, before AppTag is avail. |
2744 | * Look for modesense_handlers[] | |
2745 | */ | |
c7ee3bd4 | 2746 | ctx->app_tag = 0; |
f83adb61 QT |
2747 | ctx->app_tag_mask[0] = 0x0; |
2748 | ctx->app_tag_mask[1] = 0x0; | |
2749 | ||
be25152c QT |
2750 | if (IS_PI_UNINIT_CAPABLE(ha)) { |
2751 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
2752 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
2753 | *pfw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
2754 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
2755 | *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
2756 | } | |
2757 | ||
2758 | t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts); | |
2759 | ||
f83adb61 QT |
2760 | switch (se_cmd->prot_type) { |
2761 | case TARGET_DIF_TYPE0_PROT: | |
2762 | /* | |
be25152c QT |
2763 | * No check for ql2xenablehba_err_chk, as it |
2764 | * would be an I/O error if hba tag generation | |
2765 | * is not done. | |
f83adb61 QT |
2766 | */ |
2767 | ctx->ref_tag = cpu_to_le32(lba); | |
f83adb61 QT |
2768 | /* enable ALL bytes of the ref tag */ |
2769 | ctx->ref_tag_mask[0] = 0xff; | |
2770 | ctx->ref_tag_mask[1] = 0xff; | |
2771 | ctx->ref_tag_mask[2] = 0xff; | |
2772 | ctx->ref_tag_mask[3] = 0xff; | |
2773 | break; | |
f83adb61 | 2774 | case TARGET_DIF_TYPE1_PROT: |
be25152c QT |
2775 | /* |
2776 | * For TYPE 1 protection: 16 bit GUARD tag, 32 bit | |
2777 | * REF tag, and 16 bit app tag. | |
2778 | */ | |
2779 | ctx->ref_tag = cpu_to_le32(lba); | |
2780 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
2781 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
2782 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2783 | break; | |
2784 | } | |
2785 | /* enable ALL bytes of the ref tag */ | |
2786 | ctx->ref_tag_mask[0] = 0xff; | |
2787 | ctx->ref_tag_mask[1] = 0xff; | |
2788 | ctx->ref_tag_mask[2] = 0xff; | |
2789 | ctx->ref_tag_mask[3] = 0xff; | |
2790 | break; | |
f83adb61 | 2791 | case TARGET_DIF_TYPE2_PROT: |
be25152c QT |
2792 | /* |
2793 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF | |
2794 | * tag has to match LBA in CDB + N | |
2795 | */ | |
2796 | ctx->ref_tag = cpu_to_le32(lba); | |
2797 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
2798 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
2799 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2800 | break; | |
2801 | } | |
2802 | /* enable ALL bytes of the ref tag */ | |
2803 | ctx->ref_tag_mask[0] = 0xff; | |
2804 | ctx->ref_tag_mask[1] = 0xff; | |
2805 | ctx->ref_tag_mask[2] = 0xff; | |
2806 | ctx->ref_tag_mask[3] = 0xff; | |
2807 | break; | |
f83adb61 | 2808 | case TARGET_DIF_TYPE3_PROT: |
be25152c QT |
2809 | /* For TYPE 3 protection: 16 bit GUARD only */ |
2810 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
2811 | ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] = | |
2812 | ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00; | |
2813 | break; | |
f83adb61 QT |
2814 | } |
2815 | } | |
2816 | ||
f83adb61 | 2817 | static inline int |
82de802a | 2818 | qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm) |
f83adb61 QT |
2819 | { |
2820 | uint32_t *cur_dsd; | |
f83adb61 QT |
2821 | uint32_t transfer_length = 0; |
2822 | uint32_t data_bytes; | |
2823 | uint32_t dif_bytes; | |
2824 | uint8_t bundling = 1; | |
2825 | uint8_t *clr_ptr; | |
2826 | struct crc_context *crc_ctx_pkt = NULL; | |
2827 | struct qla_hw_data *ha; | |
2828 | struct ctio_crc2_to_fw *pkt; | |
2829 | dma_addr_t crc_ctx_dma; | |
2830 | uint16_t fw_prot_opts = 0; | |
2831 | struct qla_tgt_cmd *cmd = prm->cmd; | |
2832 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
2833 | uint32_t h; | |
2834 | struct atio_from_isp *atio = &prm->cmd->atio; | |
be25152c | 2835 | struct qla_tc_param tc; |
c7ee3bd4 | 2836 | uint16_t t16; |
82de802a | 2837 | scsi_qla_host_t *vha = cmd->vha; |
f83adb61 | 2838 | |
f83adb61 QT |
2839 | ha = vha->hw; |
2840 | ||
82de802a | 2841 | pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr; |
f83adb61 QT |
2842 | prm->pkt = pkt; |
2843 | memset(pkt, 0, sizeof(*pkt)); | |
2844 | ||
22d84726 | 2845 | ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071, |
f83adb61 | 2846 | "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n", |
22d84726 | 2847 | cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op, |
f83adb61 QT |
2848 | prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba); |
2849 | ||
2850 | if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) || | |
2851 | (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP)) | |
2852 | bundling = 0; | |
2853 | ||
2854 | /* Compute dif len and adjust data len to incude protection */ | |
2855 | data_bytes = cmd->bufflen; | |
2856 | dif_bytes = (data_bytes / cmd->blk_sz) * 8; | |
2857 | ||
2858 | switch (se_cmd->prot_op) { | |
2859 | case TARGET_PROT_DIN_INSERT: | |
2860 | case TARGET_PROT_DOUT_STRIP: | |
2861 | transfer_length = data_bytes; | |
be25152c QT |
2862 | if (cmd->prot_sg_cnt) |
2863 | data_bytes += dif_bytes; | |
f83adb61 | 2864 | break; |
f83adb61 QT |
2865 | case TARGET_PROT_DIN_STRIP: |
2866 | case TARGET_PROT_DOUT_INSERT: | |
2867 | case TARGET_PROT_DIN_PASS: | |
2868 | case TARGET_PROT_DOUT_PASS: | |
2869 | transfer_length = data_bytes + dif_bytes; | |
2870 | break; | |
f83adb61 QT |
2871 | default: |
2872 | BUG(); | |
2873 | break; | |
2874 | } | |
2875 | ||
2876 | if (!qlt_hba_err_chk_enabled(se_cmd)) | |
2877 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ | |
2878 | /* HBA error checking enabled */ | |
2879 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
2880 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
2881 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
2882 | fw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
2883 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
2884 | fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
2885 | } | |
2886 | ||
2887 | switch (se_cmd->prot_op) { | |
2888 | case TARGET_PROT_DIN_INSERT: | |
2889 | case TARGET_PROT_DOUT_INSERT: | |
2890 | fw_prot_opts |= PO_MODE_DIF_INSERT; | |
2891 | break; | |
2892 | case TARGET_PROT_DIN_STRIP: | |
2893 | case TARGET_PROT_DOUT_STRIP: | |
2894 | fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
2895 | break; | |
2896 | case TARGET_PROT_DIN_PASS: | |
2897 | case TARGET_PROT_DOUT_PASS: | |
2898 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
2899 | /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */ | |
2900 | break; | |
2901 | default:/* Normal Request */ | |
2902 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
2903 | break; | |
2904 | } | |
2905 | ||
f83adb61 QT |
2906 | /* ---- PKT ---- */ |
2907 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
2908 | pkt->entry_type = CTIO_CRC2; | |
2909 | pkt->entry_count = 1; | |
22d84726 | 2910 | pkt->vp_index = cmd->vp_idx; |
f83adb61 | 2911 | |
82de802a | 2912 | h = qlt_make_handle(qpair); |
f83adb61 QT |
2913 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { |
2914 | /* | |
2915 | * CTIO type 7 from the firmware doesn't provide a way to | |
2916 | * know the initiator's LOOP ID, hence we can't find | |
2917 | * the session and, so, the command. | |
2918 | */ | |
2919 | return -EAGAIN; | |
2920 | } else | |
82de802a | 2921 | qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd; |
f83adb61 | 2922 | |
82de802a QT |
2923 | pkt->handle = MAKE_HANDLE(qpair->req->id, h); |
2924 | pkt->handle |= CTIO_COMPLETION_HANDLE_MARK; | |
be25152c | 2925 | pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id); |
ad950360 | 2926 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
f83adb61 QT |
2927 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
2928 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2929 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2930 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
c7ee3bd4 QT |
2931 | |
2932 | /* silence compile warning */ | |
2933 | t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); | |
2934 | pkt->ox_id = cpu_to_le16(t16); | |
2935 | ||
2936 | t16 = (atio->u.isp24.attr << 9); | |
2937 | pkt->flags |= cpu_to_le16(t16); | |
f83adb61 QT |
2938 | pkt->relative_offset = cpu_to_le32(prm->cmd->offset); |
2939 | ||
2940 | /* Set transfer direction */ | |
2941 | if (cmd->dma_data_direction == DMA_TO_DEVICE) | |
ad950360 | 2942 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN); |
f83adb61 | 2943 | else if (cmd->dma_data_direction == DMA_FROM_DEVICE) |
ad950360 | 2944 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT); |
f83adb61 | 2945 | |
f83adb61 QT |
2946 | pkt->dseg_count = prm->tot_dsds; |
2947 | /* Fibre channel byte count */ | |
2948 | pkt->transfer_length = cpu_to_le32(transfer_length); | |
2949 | ||
f83adb61 QT |
2950 | /* ----- CRC context -------- */ |
2951 | ||
2952 | /* Allocate CRC context from global pool */ | |
2953 | crc_ctx_pkt = cmd->ctx = | |
2954 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
2955 | ||
2956 | if (!crc_ctx_pkt) | |
2957 | goto crc_queuing_error; | |
2958 | ||
2959 | /* Zero out CTX area. */ | |
2960 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
2961 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
2962 | ||
2963 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
2964 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
2965 | ||
2966 | /* Set handle */ | |
2967 | crc_ctx_pkt->handle = pkt->handle; | |
2968 | ||
be25152c | 2969 | qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts); |
f83adb61 QT |
2970 | |
2971 | pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
2972 | pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
2973 | pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
2974 | ||
f83adb61 QT |
2975 | if (!bundling) { |
2976 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
2977 | } else { | |
2978 | /* | |
2979 | * Configure Bundling if we need to fetch interlaving | |
2980 | * protection PCI accesses | |
2981 | */ | |
2982 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
2983 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
2984 | crc_ctx_pkt->u.bundling.dseg_count = | |
2985 | cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt); | |
2986 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
2987 | } | |
2988 | ||
2989 | /* Finish the common fields of CRC pkt */ | |
2990 | crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz); | |
2991 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
2992 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
ad950360 | 2993 | crc_ctx_pkt->guard_seed = cpu_to_le16(0); |
f83adb61 | 2994 | |
be25152c QT |
2995 | memset((uint8_t *)&tc, 0 , sizeof(tc)); |
2996 | tc.vha = vha; | |
2997 | tc.blk_sz = cmd->blk_sz; | |
2998 | tc.bufflen = cmd->bufflen; | |
2999 | tc.sg = cmd->sg; | |
3000 | tc.prot_sg = cmd->prot_sg; | |
3001 | tc.ctx = crc_ctx_pkt; | |
3002 | tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced; | |
f83adb61 QT |
3003 | |
3004 | /* Walks data segments */ | |
ad950360 | 3005 | pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR); |
f83adb61 QT |
3006 | |
3007 | if (!bundling && prm->prot_seg_cnt) { | |
3008 | if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd, | |
be25152c | 3009 | prm->tot_dsds, &tc)) |
f83adb61 QT |
3010 | goto crc_queuing_error; |
3011 | } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd, | |
be25152c | 3012 | (prm->tot_dsds - prm->prot_seg_cnt), &tc)) |
f83adb61 QT |
3013 | goto crc_queuing_error; |
3014 | ||
3015 | if (bundling && prm->prot_seg_cnt) { | |
3016 | /* Walks dif segments */ | |
c7ee3bd4 | 3017 | pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA; |
f83adb61 QT |
3018 | |
3019 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
3020 | if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd, | |
be25152c | 3021 | prm->prot_seg_cnt, &tc)) |
f83adb61 QT |
3022 | goto crc_queuing_error; |
3023 | } | |
3024 | return QLA_SUCCESS; | |
3025 | ||
3026 | crc_queuing_error: | |
3027 | /* Cleanup will be performed by the caller */ | |
82de802a | 3028 | qpair->req->outstanding_cmds[h] = NULL; |
f83adb61 QT |
3029 | |
3030 | return QLA_FUNCTION_FAILED; | |
3031 | } | |
3032 | ||
2d70c103 NB |
3033 | /* |
3034 | * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and * | |
3035 | * QLA_TGT_XMIT_STATUS for >= 24xx silicon | |
3036 | */ | |
3037 | int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, | |
3038 | uint8_t scsi_status) | |
3039 | { | |
3040 | struct scsi_qla_host *vha = cmd->vha; | |
82de802a | 3041 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 NB |
3042 | struct ctio7_to_24xx *pkt; |
3043 | struct qla_tgt_prm prm; | |
3044 | uint32_t full_req_cnt = 0; | |
3045 | unsigned long flags = 0; | |
3046 | int res; | |
3047 | ||
726b8548 | 3048 | if (cmd->sess && cmd->sess->deleted) { |
a6ca8878 AP |
3049 | cmd->state = QLA_TGT_STATE_PROCESSED; |
3050 | if (cmd->sess->logout_completed) | |
3051 | /* no need to terminate. FW already freed exchange. */ | |
3052 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
3053 | else | |
82de802a | 3054 | qlt_send_term_exchange(qpair, cmd, &cmd->atio, 0, 0); |
a6ca8878 AP |
3055 | return 0; |
3056 | } | |
a6ca8878 | 3057 | |
22d84726 | 3058 | ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018, |
82de802a | 3059 | "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n", |
f83adb61 QT |
3060 | (xmit_type & QLA_TGT_XMIT_STATUS) ? |
3061 | 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction, | |
82de802a | 3062 | &cmd->se_cmd, qpair->id); |
2d70c103 NB |
3063 | |
3064 | res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status, | |
3065 | &full_req_cnt); | |
3066 | if (unlikely(res != 0)) { | |
2d70c103 NB |
3067 | return res; |
3068 | } | |
3069 | ||
82de802a | 3070 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
2d70c103 | 3071 | |
ce1025cd | 3072 | if (xmit_type == QLA_TGT_XMIT_STATUS) |
60a9eadb | 3073 | qpair->tgt_counters.core_qla_snd_status++; |
ce1025cd | 3074 | else |
60a9eadb | 3075 | qpair->tgt_counters.core_qla_que_buf++; |
ce1025cd | 3076 | |
7c3f8fd1 | 3077 | if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) { |
b6a029e1 | 3078 | /* |
3bb67df5 | 3079 | * Either the port is not online or this request was from |
b6a029e1 AE |
3080 | * previous life, just abort the processing. |
3081 | */ | |
3082 | cmd->state = QLA_TGT_STATE_PROCESSED; | |
3083 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
22d84726 | 3084 | ql_dbg_qp(ql_dbg_async, qpair, 0xe101, |
3bb67df5 DKU |
3085 | "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3086 | vha->flags.online, qla2x00_reset_active(vha), | |
7c3f8fd1 | 3087 | cmd->reset_count, qpair->chip_reset); |
82de802a | 3088 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
b6a029e1 AE |
3089 | return 0; |
3090 | } | |
3091 | ||
2d70c103 | 3092 | /* Does F/W have an IOCBs for this request */ |
82de802a | 3093 | res = qlt_check_reserve_free_req(qpair, full_req_cnt); |
2d70c103 NB |
3094 | if (unlikely(res)) |
3095 | goto out_unmap_unlock; | |
3096 | ||
f83adb61 | 3097 | if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA)) |
82de802a | 3098 | res = qlt_build_ctio_crc2_pkt(qpair, &prm); |
f83adb61 | 3099 | else |
82de802a | 3100 | res = qlt_24xx_build_ctio_pkt(qpair, &prm); |
810e30bc | 3101 | if (unlikely(res != 0)) { |
82de802a | 3102 | qpair->req->cnt += full_req_cnt; |
2d70c103 | 3103 | goto out_unmap_unlock; |
810e30bc | 3104 | } |
2d70c103 NB |
3105 | |
3106 | pkt = (struct ctio7_to_24xx *)prm.pkt; | |
3107 | ||
3108 | if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) { | |
3109 | pkt->u.status0.flags |= | |
ad950360 | 3110 | cpu_to_le16(CTIO7_FLAGS_DATA_IN | |
2d70c103 NB |
3111 | CTIO7_FLAGS_STATUS_MODE_0); |
3112 | ||
f83adb61 | 3113 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) |
32d29b4c | 3114 | qlt_load_data_segments(&prm); |
2d70c103 NB |
3115 | |
3116 | if (prm.add_status_pkt == 0) { | |
3117 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
3118 | pkt->u.status0.scsi_status = | |
3119 | cpu_to_le16(prm.rq_result); | |
3120 | pkt->u.status0.residual = | |
3121 | cpu_to_le32(prm.residual); | |
ad950360 | 3122 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 | 3123 | CTIO7_FLAGS_SEND_STATUS); |
7c3f8fd1 | 3124 | if (qlt_need_explicit_conf(cmd, 0)) { |
2d70c103 | 3125 | pkt->u.status0.flags |= |
ad950360 | 3126 | cpu_to_le16( |
2d70c103 NB |
3127 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
3128 | CTIO7_FLAGS_CONFORM_REQ); | |
3129 | } | |
3130 | } | |
3131 | ||
3132 | } else { | |
3133 | /* | |
3134 | * We have already made sure that there is sufficient | |
3135 | * amount of request entries to not drop HW lock in | |
3136 | * req_pkt(). | |
3137 | */ | |
3138 | struct ctio7_to_24xx *ctio = | |
82de802a QT |
3139 | (struct ctio7_to_24xx *)qlt_get_req_pkt( |
3140 | qpair->req); | |
2d70c103 | 3141 | |
22d84726 | 3142 | ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e, |
667024a3 AE |
3143 | "Building additional status packet 0x%p.\n", |
3144 | ctio); | |
2d70c103 | 3145 | |
f83adb61 QT |
3146 | /* |
3147 | * T10Dif: ctio_crc2_to_fw overlay ontop of | |
3148 | * ctio7_to_24xx | |
3149 | */ | |
2d70c103 | 3150 | memcpy(ctio, pkt, sizeof(*ctio)); |
f83adb61 | 3151 | /* reset back to CTIO7 */ |
2d70c103 | 3152 | ctio->entry_count = 1; |
f83adb61 | 3153 | ctio->entry_type = CTIO_TYPE7; |
2d70c103 | 3154 | ctio->dseg_count = 0; |
ad950360 | 3155 | ctio->u.status1.flags &= ~cpu_to_le16( |
2d70c103 NB |
3156 | CTIO7_FLAGS_DATA_IN); |
3157 | ||
3158 | /* Real finish is ctio_m1's finish */ | |
3159 | pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK; | |
ad950360 | 3160 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 | 3161 | CTIO7_FLAGS_DONT_RET_CTIO); |
f83adb61 QT |
3162 | |
3163 | /* qlt_24xx_init_ctio_to_isp will correct | |
3164 | * all neccessary fields that's part of CTIO7. | |
3165 | * There should be no residual of CTIO-CRC2 data. | |
3166 | */ | |
2d70c103 NB |
3167 | qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio, |
3168 | &prm); | |
2d70c103 NB |
3169 | } |
3170 | } else | |
3171 | qlt_24xx_init_ctio_to_isp(pkt, &prm); | |
3172 | ||
3173 | ||
3174 | cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */ | |
d564a372 | 3175 | cmd->cmd_sent_to_fw = 1; |
2d70c103 | 3176 | |
63163e06 HM |
3177 | /* Memory Barrier */ |
3178 | wmb(); | |
8abfa9e2 QT |
3179 | if (qpair->reqq_start_iocbs) |
3180 | qpair->reqq_start_iocbs(qpair); | |
3181 | else | |
3182 | qla2x00_start_iocbs(vha, qpair->req); | |
82de802a | 3183 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3184 | |
3185 | return 0; | |
3186 | ||
3187 | out_unmap_unlock: | |
f9b6721a | 3188 | qlt_unmap_sg(vha, cmd); |
82de802a | 3189 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3190 | |
3191 | return res; | |
3192 | } | |
3193 | EXPORT_SYMBOL(qlt_xmit_response); | |
3194 | ||
3195 | int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) | |
3196 | { | |
3197 | struct ctio7_to_24xx *pkt; | |
3198 | struct scsi_qla_host *vha = cmd->vha; | |
2d70c103 NB |
3199 | struct qla_tgt *tgt = cmd->tgt; |
3200 | struct qla_tgt_prm prm; | |
82de802a | 3201 | unsigned long flags = 0; |
2d70c103 | 3202 | int res = 0; |
82de802a | 3203 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 NB |
3204 | |
3205 | memset(&prm, 0, sizeof(prm)); | |
3206 | prm.cmd = cmd; | |
3207 | prm.tgt = tgt; | |
3208 | prm.sg = NULL; | |
3209 | prm.req_cnt = 1; | |
3210 | ||
2d70c103 NB |
3211 | /* Calculate number of entries and segments required */ |
3212 | if (qlt_pci_map_calc_cnt(&prm) != 0) | |
3213 | return -EAGAIN; | |
3214 | ||
7c3f8fd1 | 3215 | if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) || |
726b8548 | 3216 | (cmd->sess && cmd->sess->deleted)) { |
b6a029e1 | 3217 | /* |
3bb67df5 | 3218 | * Either the port is not online or this request was from |
b6a029e1 AE |
3219 | * previous life, just abort the processing. |
3220 | */ | |
3221 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
3222 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
22d84726 | 3223 | ql_dbg_qp(ql_dbg_async, qpair, 0xe102, |
3bb67df5 DKU |
3224 | "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3225 | vha->flags.online, qla2x00_reset_active(vha), | |
7c3f8fd1 | 3226 | cmd->reset_count, qpair->chip_reset); |
b6a029e1 AE |
3227 | return 0; |
3228 | } | |
3229 | ||
82de802a | 3230 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
2d70c103 | 3231 | /* Does F/W have an IOCBs for this request */ |
82de802a | 3232 | res = qlt_check_reserve_free_req(qpair, prm.req_cnt); |
2d70c103 NB |
3233 | if (res != 0) |
3234 | goto out_unlock_free_unmap; | |
f83adb61 | 3235 | if (cmd->se_cmd.prot_op) |
82de802a | 3236 | res = qlt_build_ctio_crc2_pkt(qpair, &prm); |
f83adb61 | 3237 | else |
82de802a | 3238 | res = qlt_24xx_build_ctio_pkt(qpair, &prm); |
2d70c103 | 3239 | |
810e30bc | 3240 | if (unlikely(res != 0)) { |
82de802a | 3241 | qpair->req->cnt += prm.req_cnt; |
2d70c103 | 3242 | goto out_unlock_free_unmap; |
810e30bc QT |
3243 | } |
3244 | ||
2d70c103 | 3245 | pkt = (struct ctio7_to_24xx *)prm.pkt; |
ad950360 | 3246 | pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT | |
2d70c103 | 3247 | CTIO7_FLAGS_STATUS_MODE_0); |
f83adb61 QT |
3248 | |
3249 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) | |
32d29b4c | 3250 | qlt_load_data_segments(&prm); |
2d70c103 NB |
3251 | |
3252 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
d564a372 | 3253 | cmd->cmd_sent_to_fw = 1; |
2d70c103 | 3254 | |
63163e06 HM |
3255 | /* Memory Barrier */ |
3256 | wmb(); | |
8abfa9e2 QT |
3257 | if (qpair->reqq_start_iocbs) |
3258 | qpair->reqq_start_iocbs(qpair); | |
3259 | else | |
3260 | qla2x00_start_iocbs(vha, qpair->req); | |
82de802a | 3261 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3262 | |
3263 | return res; | |
3264 | ||
3265 | out_unlock_free_unmap: | |
f9b6721a | 3266 | qlt_unmap_sg(vha, cmd); |
82de802a | 3267 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3268 | |
3269 | return res; | |
3270 | } | |
3271 | EXPORT_SYMBOL(qlt_rdy_to_xfer); | |
3272 | ||
f83adb61 QT |
3273 | |
3274 | /* | |
be25152c | 3275 | * it is assumed either hardware_lock or qpair lock is held. |
f83adb61 | 3276 | */ |
be25152c | 3277 | static void |
8abfa9e2 | 3278 | qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd, |
be25152c | 3279 | struct ctio_crc_from_fw *sts) |
f83adb61 QT |
3280 | { |
3281 | uint8_t *ap = &sts->actual_dif[0]; | |
3282 | uint8_t *ep = &sts->expected_dif[0]; | |
f83adb61 | 3283 | uint64_t lba = cmd->se_cmd.t_task_lba; |
be25152c QT |
3284 | uint8_t scsi_status, sense_key, asc, ascq; |
3285 | unsigned long flags; | |
8abfa9e2 | 3286 | struct scsi_qla_host *vha = cmd->vha; |
f83adb61 | 3287 | |
be25152c | 3288 | cmd->trc_flags |= TRC_DIF_ERR; |
f83adb61 | 3289 | |
be25152c QT |
3290 | cmd->a_guard = be16_to_cpu(*(uint16_t *)(ap + 0)); |
3291 | cmd->a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2)); | |
3292 | cmd->a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4)); | |
f83adb61 | 3293 | |
be25152c QT |
3294 | cmd->e_guard = be16_to_cpu(*(uint16_t *)(ep + 0)); |
3295 | cmd->e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2)); | |
3296 | cmd->e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4)); | |
f83adb61 | 3297 | |
be25152c QT |
3298 | ql_dbg(ql_dbg_tgt_dif, vha, 0xf075, |
3299 | "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state); | |
f83adb61 | 3300 | |
be25152c | 3301 | scsi_status = sense_key = asc = ascq = 0; |
f83adb61 | 3302 | |
be25152c QT |
3303 | /* check appl tag */ |
3304 | if (cmd->e_app_tag != cmd->a_app_tag) { | |
83548fe2 QT |
3305 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d, |
3306 | "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]", | |
3307 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3308 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3309 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3310 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
be25152c QT |
3311 | |
3312 | cmd->dif_err_code = DIF_ERR_APP; | |
3313 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3314 | sense_key = ABORTED_COMMAND; | |
3315 | asc = 0x10; | |
3316 | ascq = 0x2; | |
f83adb61 QT |
3317 | } |
3318 | ||
3319 | /* check ref tag */ | |
be25152c | 3320 | if (cmd->e_ref_tag != cmd->a_ref_tag) { |
83548fe2 QT |
3321 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e, |
3322 | "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] ", | |
3323 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3324 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3325 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3326 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
be25152c QT |
3327 | |
3328 | cmd->dif_err_code = DIF_ERR_REF; | |
3329 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3330 | sense_key = ABORTED_COMMAND; | |
3331 | asc = 0x10; | |
3332 | ascq = 0x3; | |
f83adb61 QT |
3333 | goto out; |
3334 | } | |
3335 | ||
be25152c QT |
3336 | /* check guard */ |
3337 | if (cmd->e_guard != cmd->a_guard) { | |
83548fe2 QT |
3338 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe012, |
3339 | "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]", | |
3340 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3341 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3342 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3343 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
3344 | ||
be25152c QT |
3345 | cmd->dif_err_code = DIF_ERR_GRD; |
3346 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3347 | sense_key = ABORTED_COMMAND; | |
3348 | asc = 0x10; | |
3349 | ascq = 0x1; | |
f83adb61 QT |
3350 | } |
3351 | out: | |
be25152c QT |
3352 | switch (cmd->state) { |
3353 | case QLA_TGT_STATE_NEED_DATA: | |
3354 | /* handle_data will load DIF error code */ | |
3355 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3356 | vha->hw->tgt.tgt_ops->handle_data(cmd); | |
3357 | break; | |
3358 | default: | |
3359 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
3360 | if (cmd->aborted) { | |
3361 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3362 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3363 | break; | |
3364 | } | |
3365 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
f83adb61 | 3366 | |
8abfa9e2 QT |
3367 | qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc, |
3368 | ascq); | |
be25152c QT |
3369 | /* assume scsi status gets out on the wire. |
3370 | * Will not wait for completion. | |
3371 | */ | |
3372 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3373 | break; | |
3374 | } | |
3375 | } | |
f83adb61 | 3376 | |
a6ca8878 AP |
3377 | /* If hardware_lock held on entry, might drop it, then reaquire */ |
3378 | /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ | |
3379 | static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3380 | struct imm_ntfy_from_isp *ntfy) | |
3381 | { | |
3382 | struct nack_to_isp *nack; | |
3383 | struct qla_hw_data *ha = vha->hw; | |
3384 | request_t *pkt; | |
3385 | int ret = 0; | |
3386 | ||
3387 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c, | |
3388 | "Sending TERM ELS CTIO (ha=%p)\n", ha); | |
3389 | ||
ec7193e2 | 3390 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); |
a6ca8878 AP |
3391 | if (pkt == NULL) { |
3392 | ql_dbg(ql_dbg_tgt, vha, 0xe080, | |
3393 | "qla_target(%d): %s failed: unable to allocate " | |
3394 | "request packet\n", vha->vp_idx, __func__); | |
3395 | return -ENOMEM; | |
3396 | } | |
3397 | ||
3398 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
3399 | pkt->entry_count = 1; | |
4f060736 | 3400 | pkt->handle = QLA_TGT_SKIP_HANDLE; |
a6ca8878 AP |
3401 | |
3402 | nack = (struct nack_to_isp *)pkt; | |
3403 | nack->ox_id = ntfy->ox_id; | |
3404 | ||
3405 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; | |
3406 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
3407 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
3408 | __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); | |
3409 | } | |
3410 | ||
3411 | /* terminate */ | |
3412 | nack->u.isp24.flags |= | |
3413 | __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE); | |
3414 | ||
3415 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
3416 | nack->u.isp24.status = ntfy->u.isp24.status; | |
3417 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
3418 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; | |
3419 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; | |
3420 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
3421 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
3422 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
3423 | ||
3424 | qla2x00_start_iocbs(vha, vha->req); | |
3425 | return ret; | |
3426 | } | |
3427 | ||
3428 | static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3429 | struct imm_ntfy_from_isp *imm, int ha_locked) | |
3430 | { | |
3431 | unsigned long flags = 0; | |
3432 | int rc; | |
3433 | ||
a6ca8878 AP |
3434 | if (ha_locked) { |
3435 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3436 | ||
3437 | #if 0 /* Todo */ | |
3438 | if (rc == -ENOMEM) | |
3439 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
91f42b33 BVA |
3440 | #else |
3441 | if (rc) { | |
3442 | } | |
a6ca8878 AP |
3443 | #endif |
3444 | goto done; | |
3445 | } | |
3446 | ||
3447 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
3448 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3449 | ||
3450 | #if 0 /* Todo */ | |
3451 | if (rc == -ENOMEM) | |
3452 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
3453 | #endif | |
3454 | ||
3455 | done: | |
3456 | if (!ha_locked) | |
3457 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
3458 | } | |
3459 | ||
83548fe2 QT |
3460 | /* |
3461 | * If hardware_lock held on entry, might drop it, then reaquire | |
3462 | * This function sends the appropriate CTIO to ISP 2xxx or 24xx | |
3463 | */ | |
82de802a | 3464 | static int __qlt_send_term_exchange(struct qla_qpair *qpair, |
2d70c103 NB |
3465 | struct qla_tgt_cmd *cmd, |
3466 | struct atio_from_isp *atio) | |
3467 | { | |
82de802a | 3468 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
3469 | struct ctio7_to_24xx *ctio24; |
3470 | struct qla_hw_data *ha = vha->hw; | |
3471 | request_t *pkt; | |
3472 | int ret = 0; | |
33a5fcee | 3473 | uint16_t temp; |
2d70c103 | 3474 | |
83548fe2 | 3475 | ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha); |
2d70c103 | 3476 | |
72fcd4eb QT |
3477 | if (cmd) |
3478 | vha = cmd->vha; | |
3479 | ||
82de802a | 3480 | pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL); |
2d70c103 NB |
3481 | if (pkt == NULL) { |
3482 | ql_dbg(ql_dbg_tgt, vha, 0xe050, | |
3483 | "qla_target(%d): %s failed: unable to allocate " | |
3484 | "request packet\n", vha->vp_idx, __func__); | |
3485 | return -ENOMEM; | |
3486 | } | |
3487 | ||
3488 | if (cmd != NULL) { | |
3489 | if (cmd->state < QLA_TGT_STATE_PROCESSED) { | |
3490 | ql_dbg(ql_dbg_tgt, vha, 0xe051, | |
3491 | "qla_target(%d): Terminating cmd %p with " | |
3492 | "incorrect state %d\n", vha->vp_idx, cmd, | |
3493 | cmd->state); | |
3494 | } else | |
3495 | ret = 1; | |
3496 | } | |
3497 | ||
60a9eadb | 3498 | qpair->tgt_counters.num_term_xchg_sent++; |
2d70c103 NB |
3499 | pkt->entry_count = 1; |
3500 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
3501 | ||
3502 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
3503 | ctio24->entry_type = CTIO_TYPE7; | |
71cdc079 | 3504 | ctio24->nport_handle = CTIO7_NHANDLE_UNRECOGNIZED; |
ad950360 | 3505 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
3506 | ctio24->vp_index = vha->vp_idx; |
3507 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
3508 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
3509 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
3510 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
3511 | temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 | |
3512 | CTIO7_FLAGS_TERMINATE; | |
3513 | ctio24->u.status1.flags = cpu_to_le16(temp); | |
33a5fcee QT |
3514 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
3515 | ctio24->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 NB |
3516 | |
3517 | /* Most likely, it isn't needed */ | |
3518 | ctio24->u.status1.residual = get_unaligned((uint32_t *) | |
3519 | &atio->u.isp24.fcp_cmnd.add_cdb[ | |
3520 | atio->u.isp24.fcp_cmnd.add_cdb_len]); | |
3521 | if (ctio24->u.status1.residual != 0) | |
3522 | ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER; | |
3523 | ||
63163e06 HM |
3524 | /* Memory Barrier */ |
3525 | wmb(); | |
8abfa9e2 QT |
3526 | if (qpair->reqq_start_iocbs) |
3527 | qpair->reqq_start_iocbs(qpair); | |
3528 | else | |
3529 | qla2x00_start_iocbs(vha, qpair->req); | |
2d70c103 NB |
3530 | return ret; |
3531 | } | |
3532 | ||
82de802a | 3533 | static void qlt_send_term_exchange(struct qla_qpair *qpair, |
a07100e0 QT |
3534 | struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked, |
3535 | int ul_abort) | |
2d70c103 | 3536 | { |
82de802a | 3537 | struct scsi_qla_host *vha; |
6bc85dd5 | 3538 | unsigned long flags = 0; |
2d70c103 NB |
3539 | int rc; |
3540 | ||
82de802a QT |
3541 | /* why use different vha? NPIV */ |
3542 | if (cmd) | |
3543 | vha = cmd->vha; | |
3544 | else | |
3545 | vha = qpair->vha; | |
2d70c103 NB |
3546 | |
3547 | if (ha_locked) { | |
82de802a | 3548 | rc = __qlt_send_term_exchange(qpair, cmd, atio); |
33e79977 QT |
3549 | if (rc == -ENOMEM) |
3550 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
2d70c103 NB |
3551 | goto done; |
3552 | } | |
82de802a QT |
3553 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
3554 | rc = __qlt_send_term_exchange(qpair, cmd, atio); | |
33e79977 QT |
3555 | if (rc == -ENOMEM) |
3556 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
d564a372 | 3557 | |
2d70c103 | 3558 | done: |
a07100e0 | 3559 | if (cmd && !ul_abort && !cmd->aborted) { |
6bc85dd5 HM |
3560 | if (cmd->sg_mapped) |
3561 | qlt_unmap_sg(vha, cmd); | |
2d70c103 NB |
3562 | vha->hw->tgt.tgt_ops->free_cmd(cmd); |
3563 | } | |
6bc85dd5 HM |
3564 | |
3565 | if (!ha_locked) | |
82de802a | 3566 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
6bc85dd5 | 3567 | |
7b898542 | 3568 | return; |
2d70c103 NB |
3569 | } |
3570 | ||
33e79977 QT |
3571 | static void qlt_init_term_exchange(struct scsi_qla_host *vha) |
3572 | { | |
3573 | struct list_head free_list; | |
3574 | struct qla_tgt_cmd *cmd, *tcmd; | |
3575 | ||
3576 | vha->hw->tgt.leak_exchg_thresh_hold = | |
03e8c680 | 3577 | (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT; |
33e79977 QT |
3578 | |
3579 | cmd = tcmd = NULL; | |
3580 | if (!list_empty(&vha->hw->tgt.q_full_list)) { | |
3581 | INIT_LIST_HEAD(&free_list); | |
3582 | list_splice_init(&vha->hw->tgt.q_full_list, &free_list); | |
3583 | ||
3584 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
3585 | list_del(&cmd->cmd_list); | |
3586 | /* This cmd was never sent to TCM. There is no need | |
3587 | * to schedule free or call free_cmd | |
3588 | */ | |
3589 | qlt_free_cmd(cmd); | |
3590 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
3591 | } | |
3592 | } | |
3593 | vha->hw->tgt.num_qfull_cmds_dropped = 0; | |
3594 | } | |
3595 | ||
3596 | static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha) | |
3597 | { | |
3598 | uint32_t total_leaked; | |
3599 | ||
3600 | total_leaked = vha->hw->tgt.num_qfull_cmds_dropped; | |
3601 | ||
3602 | if (vha->hw->tgt.leak_exchg_thresh_hold && | |
3603 | (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) { | |
3604 | ||
3605 | ql_dbg(ql_dbg_tgt, vha, 0xe079, | |
3606 | "Chip reset due to exchange starvation: %d/%d.\n", | |
03e8c680 | 3607 | total_leaked, vha->hw->cur_fw_xcb_count); |
33e79977 QT |
3608 | |
3609 | if (IS_P3P_TYPE(vha->hw)) | |
3610 | set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); | |
3611 | else | |
3612 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
3613 | qla2xxx_wake_dpc(vha); | |
3614 | } | |
3615 | ||
3616 | } | |
3617 | ||
a07100e0 | 3618 | int qlt_abort_cmd(struct qla_tgt_cmd *cmd) |
7359df25 AP |
3619 | { |
3620 | struct qla_tgt *tgt = cmd->tgt; | |
3621 | struct scsi_qla_host *vha = tgt->vha; | |
3622 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
a07100e0 | 3623 | unsigned long flags; |
7359df25 AP |
3624 | |
3625 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014, | |
3626 | "qla_target(%d): terminating exchange for aborted cmd=%p " | |
3627 | "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd, | |
3628 | se_cmd->tag); | |
3629 | ||
a07100e0 QT |
3630 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
3631 | if (cmd->aborted) { | |
3632 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3633 | /* | |
3634 | * It's normal to see 2 calls in this path: | |
3635 | * 1) XFER Rdy completion + CMD_T_ABORT | |
3636 | * 2) TCM TMR - drain_state_list | |
3637 | */ | |
83548fe2 QT |
3638 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016, |
3639 | "multiple abort. %p transport_state %x, t_state %x, " | |
3640 | "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state, | |
3641 | cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags); | |
a07100e0 QT |
3642 | return EIO; |
3643 | } | |
193b50b9 | 3644 | cmd->aborted = 1; |
1eb42f96 | 3645 | cmd->trc_flags |= TRC_ABORT; |
a07100e0 | 3646 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
7359df25 | 3647 | |
82de802a | 3648 | qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1); |
a07100e0 | 3649 | return 0; |
7359df25 AP |
3650 | } |
3651 | EXPORT_SYMBOL(qlt_abort_cmd); | |
3652 | ||
2d70c103 NB |
3653 | void qlt_free_cmd(struct qla_tgt_cmd *cmd) |
3654 | { | |
5d964837 | 3655 | struct fc_port *sess = cmd->sess; |
51a07f84 | 3656 | |
f83adb61 QT |
3657 | ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074, |
3658 | "%s: se_cmd[%p] ox_id %04x\n", | |
3659 | __func__, &cmd->se_cmd, | |
3660 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
2d70c103 | 3661 | |
e07f8f65 SK |
3662 | BUG_ON(cmd->cmd_in_wq); |
3663 | ||
a07100e0 QT |
3664 | if (cmd->sg_mapped) |
3665 | qlt_unmap_sg(cmd->vha, cmd); | |
3666 | ||
33e79977 QT |
3667 | if (!cmd->q_full) |
3668 | qlt_decr_num_pend_cmds(cmd->vha); | |
3669 | ||
f83adb61 | 3670 | BUG_ON(cmd->sg_mapped); |
e07f8f65 | 3671 | cmd->jiffies_at_free = get_jiffies_64(); |
2d70c103 NB |
3672 | if (unlikely(cmd->free_sg)) |
3673 | kfree(cmd->sg); | |
51a07f84 NB |
3674 | |
3675 | if (!sess || !sess->se_sess) { | |
3676 | WARN_ON(1); | |
3677 | return; | |
3678 | } | |
e07f8f65 | 3679 | cmd->jiffies_at_free = get_jiffies_64(); |
51a07f84 | 3680 | percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); |
2d70c103 NB |
3681 | } |
3682 | EXPORT_SYMBOL(qlt_free_cmd); | |
3683 | ||
2d70c103 NB |
3684 | /* |
3685 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
3686 | */ | |
82de802a | 3687 | static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio, |
2d70c103 NB |
3688 | struct qla_tgt_cmd *cmd, uint32_t status) |
3689 | { | |
3690 | int term = 0; | |
82de802a | 3691 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 | 3692 | |
be25152c | 3693 | if (cmd->se_cmd.prot_op) |
83548fe2 | 3694 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe013, |
be25152c QT |
3695 | "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] " |
3696 | "se_cmd=%p tag[%x] op %#x/%s", | |
3697 | cmd->lba, cmd->lba, | |
3698 | cmd->num_blks, &cmd->se_cmd, | |
3699 | cmd->atio.u.isp24.exchange_addr, | |
3700 | cmd->se_cmd.prot_op, | |
3701 | prot_op_str(cmd->se_cmd.prot_op)); | |
3702 | ||
2d70c103 NB |
3703 | if (ctio != NULL) { |
3704 | struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio; | |
3705 | term = !(c->flags & | |
ad950360 | 3706 | cpu_to_le16(OF_TERM_EXCH)); |
2d70c103 NB |
3707 | } else |
3708 | term = 1; | |
3709 | ||
3710 | if (term) | |
82de802a | 3711 | qlt_term_ctio_exchange(qpair, ctio, cmd, status); |
2d70c103 NB |
3712 | |
3713 | return term; | |
3714 | } | |
3715 | ||
2d70c103 NB |
3716 | |
3717 | /* ha->hardware_lock supposed to be held on entry */ | |
3718 | static struct qla_tgt_cmd *qlt_ctio_to_cmd(struct scsi_qla_host *vha, | |
82de802a | 3719 | struct rsp_que *rsp, uint32_t handle, void *ctio) |
2d70c103 NB |
3720 | { |
3721 | struct qla_tgt_cmd *cmd = NULL; | |
82de802a QT |
3722 | struct req_que *req; |
3723 | int qid = GET_QID(handle); | |
3724 | uint32_t h = handle & ~QLA_TGT_HANDLE_MASK; | |
2d70c103 | 3725 | |
82de802a QT |
3726 | if (unlikely(h == QLA_TGT_SKIP_HANDLE)) |
3727 | return NULL; | |
2d70c103 | 3728 | |
82de802a QT |
3729 | if (qid == rsp->req->id) { |
3730 | req = rsp->req; | |
3731 | } else if (vha->hw->req_q_map[qid]) { | |
3732 | ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a, | |
3733 | "qla_target(%d): CTIO completion with different QID %d handle %x\n", | |
3734 | vha->vp_idx, rsp->id, handle); | |
3735 | req = vha->hw->req_q_map[qid]; | |
3736 | } else { | |
3737 | return NULL; | |
3738 | } | |
667024a3 | 3739 | |
82de802a | 3740 | h &= QLA_CMD_HANDLE_MASK; |
c5419e26 | 3741 | |
82de802a | 3742 | if (h != QLA_TGT_NULL_HANDLE) { |
fb2028a0 | 3743 | if (unlikely(h >= req->num_outstanding_cmds)) { |
2d70c103 NB |
3744 | ql_dbg(ql_dbg_tgt, vha, 0xe052, |
3745 | "qla_target(%d): Wrong handle %x received\n", | |
3746 | vha->vp_idx, handle); | |
3747 | return NULL; | |
3748 | } | |
82de802a QT |
3749 | |
3750 | cmd = (struct qla_tgt_cmd *)req->outstanding_cmds[h]; | |
3751 | if (unlikely(cmd == NULL)) { | |
c5419e26 | 3752 | ql_dbg(ql_dbg_async, vha, 0xe053, |
82de802a QT |
3753 | "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n", |
3754 | vha->vp_idx, handle, req->id, rsp->id); | |
2d70c103 NB |
3755 | return NULL; |
3756 | } | |
82de802a | 3757 | req->outstanding_cmds[h] = NULL; |
2d70c103 NB |
3758 | } else if (ctio != NULL) { |
3759 | /* We can't get loop ID from CTIO7 */ | |
3760 | ql_dbg(ql_dbg_tgt, vha, 0xe054, | |
3761 | "qla_target(%d): Wrong CTIO received: QLA24xx doesn't " | |
3762 | "support NULL handles\n", vha->vp_idx); | |
3763 | return NULL; | |
3764 | } | |
3765 | ||
3766 | return cmd; | |
3767 | } | |
3768 | ||
c0cb4496 | 3769 | /* hardware_lock should be held by caller. */ |
c5419e26 | 3770 | void |
c0cb4496 AE |
3771 | qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) |
3772 | { | |
3773 | struct qla_hw_data *ha = vha->hw; | |
c0cb4496 AE |
3774 | |
3775 | if (cmd->sg_mapped) | |
3776 | qlt_unmap_sg(vha, cmd); | |
3777 | ||
c0cb4496 AE |
3778 | /* TODO: fix debug message type and ids. */ |
3779 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
3780 | ql_dbg(ql_dbg_io, vha, 0xff00, | |
82de802a | 3781 | "HOST-ABORT: state=PROCESSED.\n"); |
c0cb4496 AE |
3782 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { |
3783 | cmd->write_data_transferred = 0; | |
3784 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3785 | ||
3786 | ql_dbg(ql_dbg_io, vha, 0xff01, | |
82de802a | 3787 | "HOST-ABORT: state=DATA_IN.\n"); |
c0cb4496 AE |
3788 | |
3789 | ha->tgt.tgt_ops->handle_data(cmd); | |
3790 | return; | |
c0cb4496 AE |
3791 | } else { |
3792 | ql_dbg(ql_dbg_io, vha, 0xff03, | |
82de802a | 3793 | "HOST-ABORT: state=BAD(%d).\n", |
c0cb4496 AE |
3794 | cmd->state); |
3795 | dump_stack(); | |
3796 | } | |
3797 | ||
1eb42f96 | 3798 | cmd->trc_flags |= TRC_FLUSH; |
c0cb4496 AE |
3799 | ha->tgt.tgt_ops->free_cmd(cmd); |
3800 | } | |
3801 | ||
2d70c103 NB |
3802 | /* |
3803 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
3804 | */ | |
82de802a QT |
3805 | static void qlt_do_ctio_completion(struct scsi_qla_host *vha, |
3806 | struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio) | |
2d70c103 NB |
3807 | { |
3808 | struct qla_hw_data *ha = vha->hw; | |
3809 | struct se_cmd *se_cmd; | |
2d70c103 | 3810 | struct qla_tgt_cmd *cmd; |
82de802a | 3811 | struct qla_qpair *qpair = rsp->qpair; |
2d70c103 | 3812 | |
2d70c103 NB |
3813 | if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) { |
3814 | /* That could happen only in case of an error/reset/abort */ | |
3815 | if (status != CTIO_SUCCESS) { | |
3816 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d, | |
3817 | "Intermediate CTIO received" | |
3818 | " (status %x)\n", status); | |
3819 | } | |
3820 | return; | |
3821 | } | |
3822 | ||
82de802a | 3823 | cmd = qlt_ctio_to_cmd(vha, rsp, handle, ctio); |
092e1dc3 | 3824 | if (cmd == NULL) |
2d70c103 | 3825 | return; |
092e1dc3 | 3826 | |
2d70c103 | 3827 | se_cmd = &cmd->se_cmd; |
d564a372 | 3828 | cmd->cmd_sent_to_fw = 0; |
2d70c103 | 3829 | |
f9b6721a | 3830 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
3831 | |
3832 | if (unlikely(status != CTIO_SUCCESS)) { | |
3833 | switch (status & 0xFFFF) { | |
3834 | case CTIO_LIP_RESET: | |
3835 | case CTIO_TARGET_RESET: | |
3836 | case CTIO_ABORTED: | |
7b898542 | 3837 | /* driver request abort via Terminate exchange */ |
2d70c103 NB |
3838 | case CTIO_TIMEOUT: |
3839 | case CTIO_INVALID_RX_ID: | |
3840 | /* They are OK */ | |
3841 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058, | |
3842 | "qla_target(%d): CTIO with " | |
3843 | "status %#x received, state %x, se_cmd %p, " | |
3844 | "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, " | |
3845 | "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx, | |
3846 | status, cmd->state, se_cmd); | |
3847 | break; | |
3848 | ||
3849 | case CTIO_PORT_LOGGED_OUT: | |
3850 | case CTIO_PORT_UNAVAILABLE: | |
71cdc079 | 3851 | { |
dacb5822 HM |
3852 | int logged_out = |
3853 | (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT; | |
3854 | ||
2d70c103 | 3855 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059, |
71cdc079 | 3856 | "qla_target(%d): CTIO with %s status %x " |
2d70c103 | 3857 | "received (state %x, se_cmd %p)\n", vha->vp_idx, |
dacb5822 | 3858 | logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE", |
2d70c103 | 3859 | status, cmd->state, se_cmd); |
2d70c103 | 3860 | |
71cdc079 AP |
3861 | if (logged_out && cmd->sess) { |
3862 | /* | |
3863 | * Session is already logged out, but we need | |
3864 | * to notify initiator, who's not aware of this | |
3865 | */ | |
3866 | cmd->sess->logout_on_delete = 0; | |
3867 | cmd->sess->send_els_logo = 1; | |
83548fe2 | 3868 | ql_dbg(ql_dbg_disc, vha, 0x20f8, |
726b8548 QT |
3869 | "%s %d %8phC post del sess\n", |
3870 | __func__, __LINE__, cmd->sess->port_name); | |
3871 | ||
3872 | qlt_schedule_sess_for_deletion_lock(cmd->sess); | |
71cdc079 AP |
3873 | } |
3874 | break; | |
3875 | } | |
f83adb61 QT |
3876 | case CTIO_DIF_ERROR: { |
3877 | struct ctio_crc_from_fw *crc = | |
3878 | (struct ctio_crc_from_fw *)ctio; | |
3879 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073, | |
be25152c QT |
3880 | "qla_target(%d): CTIO with DIF_ERROR status %x " |
3881 | "received (state %x, ulp_cmd %p) actual_dif[0x%llx] " | |
3882 | "expect_dif[0x%llx]\n", | |
f83adb61 QT |
3883 | vha->vp_idx, status, cmd->state, se_cmd, |
3884 | *((u64 *)&crc->actual_dif[0]), | |
3885 | *((u64 *)&crc->expected_dif[0])); | |
3886 | ||
8abfa9e2 | 3887 | qlt_handle_dif_error(qpair, cmd, ctio); |
be25152c | 3888 | return; |
f83adb61 | 3889 | } |
2d70c103 NB |
3890 | default: |
3891 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b, | |
f83adb61 | 3892 | "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n", |
2d70c103 NB |
3893 | vha->vp_idx, status, cmd->state, se_cmd); |
3894 | break; | |
3895 | } | |
3896 | ||
7b898542 | 3897 | |
193b50b9 | 3898 | /* "cmd->aborted" means |
7b898542 QT |
3899 | * cmd is already aborted/terminated, we don't |
3900 | * need to terminate again. The exchange is already | |
3901 | * cleaned up/freed at FW level. Just cleanup at driver | |
3902 | * level. | |
3903 | */ | |
3904 | if ((cmd->state != QLA_TGT_STATE_NEED_DATA) && | |
193b50b9 | 3905 | (!cmd->aborted)) { |
1eb42f96 | 3906 | cmd->trc_flags |= TRC_CTIO_ERR; |
82de802a | 3907 | if (qlt_term_ctio_exchange(qpair, ctio, cmd, status)) |
2d70c103 | 3908 | return; |
7b898542 | 3909 | } |
2d70c103 NB |
3910 | } |
3911 | ||
3912 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
1eb42f96 | 3913 | cmd->trc_flags |= TRC_CTIO_DONE; |
2d70c103 | 3914 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { |
2d70c103 NB |
3915 | cmd->state = QLA_TGT_STATE_DATA_IN; |
3916 | ||
52c82823 | 3917 | if (status == CTIO_SUCCESS) |
2d70c103 NB |
3918 | cmd->write_data_transferred = 1; |
3919 | ||
2d70c103 NB |
3920 | ha->tgt.tgt_ops->handle_data(cmd); |
3921 | return; | |
193b50b9 | 3922 | } else if (cmd->aborted) { |
1eb42f96 | 3923 | cmd->trc_flags |= TRC_CTIO_ABORTED; |
2d70c103 | 3924 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e, |
649ee054 | 3925 | "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag); |
2d70c103 | 3926 | } else { |
1eb42f96 | 3927 | cmd->trc_flags |= TRC_CTIO_STRANGE; |
2d70c103 NB |
3928 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c, |
3929 | "qla_target(%d): A command in state (%d) should " | |
3930 | "not return a CTIO complete\n", vha->vp_idx, cmd->state); | |
3931 | } | |
3932 | ||
7b898542 | 3933 | if (unlikely(status != CTIO_SUCCESS) && |
193b50b9 | 3934 | !cmd->aborted) { |
2d70c103 NB |
3935 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n"); |
3936 | dump_stack(); | |
3937 | } | |
3938 | ||
3939 | ha->tgt.tgt_ops->free_cmd(cmd); | |
3940 | } | |
3941 | ||
2d70c103 NB |
3942 | static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha, |
3943 | uint8_t task_codes) | |
3944 | { | |
3945 | int fcp_task_attr; | |
3946 | ||
3947 | switch (task_codes) { | |
3948 | case ATIO_SIMPLE_QUEUE: | |
68d81f40 | 3949 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
3950 | break; |
3951 | case ATIO_HEAD_OF_QUEUE: | |
68d81f40 | 3952 | fcp_task_attr = TCM_HEAD_TAG; |
2d70c103 NB |
3953 | break; |
3954 | case ATIO_ORDERED_QUEUE: | |
68d81f40 | 3955 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
3956 | break; |
3957 | case ATIO_ACA_QUEUE: | |
68d81f40 | 3958 | fcp_task_attr = TCM_ACA_TAG; |
2d70c103 NB |
3959 | break; |
3960 | case ATIO_UNTAGGED: | |
68d81f40 | 3961 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
3962 | break; |
3963 | default: | |
3964 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d, | |
3965 | "qla_target: unknown task code %x, use ORDERED instead\n", | |
3966 | task_codes); | |
68d81f40 | 3967 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
3968 | break; |
3969 | } | |
3970 | ||
3971 | return fcp_task_attr; | |
3972 | } | |
3973 | ||
5d964837 | 3974 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *, |
2d70c103 NB |
3975 | uint8_t *); |
3976 | /* | |
3977 | * Process context for I/O path into tcm_qla2xxx code | |
3978 | */ | |
51a07f84 | 3979 | static void __qlt_do_work(struct qla_tgt_cmd *cmd) |
2d70c103 | 3980 | { |
2d70c103 NB |
3981 | scsi_qla_host_t *vha = cmd->vha; |
3982 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 3983 | struct fc_port *sess = cmd->sess; |
2d70c103 NB |
3984 | struct atio_from_isp *atio = &cmd->atio; |
3985 | unsigned char *cdb; | |
3986 | unsigned long flags; | |
3987 | uint32_t data_length; | |
3988 | int ret, fcp_task_attr, data_dir, bidi = 0; | |
82de802a | 3989 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 | 3990 | |
e07f8f65 | 3991 | cmd->cmd_in_wq = 0; |
1eb42f96 | 3992 | cmd->trc_flags |= TRC_DO_WORK; |
2d70c103 | 3993 | |
193b50b9 | 3994 | if (cmd->aborted) { |
8b2f5ff3 SN |
3995 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082, |
3996 | "cmd with tag %u is aborted\n", | |
3997 | cmd->atio.u.isp24.exchange_addr); | |
3998 | goto out_term; | |
3999 | } | |
4000 | ||
a07100e0 | 4001 | spin_lock_init(&cmd->cmd_lock); |
2d70c103 | 4002 | cdb = &atio->u.isp24.fcp_cmnd.cdb[0]; |
649ee054 | 4003 | cmd->se_cmd.tag = atio->u.isp24.exchange_addr; |
2d70c103 NB |
4004 | |
4005 | if (atio->u.isp24.fcp_cmnd.rddata && | |
4006 | atio->u.isp24.fcp_cmnd.wrdata) { | |
4007 | bidi = 1; | |
4008 | data_dir = DMA_TO_DEVICE; | |
4009 | } else if (atio->u.isp24.fcp_cmnd.rddata) | |
4010 | data_dir = DMA_FROM_DEVICE; | |
4011 | else if (atio->u.isp24.fcp_cmnd.wrdata) | |
4012 | data_dir = DMA_TO_DEVICE; | |
4013 | else | |
4014 | data_dir = DMA_NONE; | |
4015 | ||
4016 | fcp_task_attr = qlt_get_fcp_task_attr(vha, | |
4017 | atio->u.isp24.fcp_cmnd.task_attr); | |
4018 | data_length = be32_to_cpu(get_unaligned((uint32_t *) | |
4019 | &atio->u.isp24.fcp_cmnd.add_cdb[ | |
4020 | atio->u.isp24.fcp_cmnd.add_cdb_len])); | |
4021 | ||
51a07f84 NB |
4022 | ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length, |
4023 | fcp_task_attr, data_dir, bidi); | |
2d70c103 NB |
4024 | if (ret != 0) |
4025 | goto out_term; | |
4026 | /* | |
4027 | * Drop extra session reference from qla_tgt_handle_cmd_for_atio*( | |
4028 | */ | |
7560151b | 4029 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
5d964837 | 4030 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4031 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
4032 | return; |
4033 | ||
4034 | out_term: | |
667024a3 | 4035 | ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd); |
2d70c103 | 4036 | /* |
fae9eaf8 RD |
4037 | * cmd has not sent to target yet, so pass NULL as the second |
4038 | * argument to qlt_send_term_exchange() and free the memory here. | |
2d70c103 | 4039 | */ |
1eb42f96 | 4040 | cmd->trc_flags |= TRC_DO_WORK_ERR; |
82de802a QT |
4041 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
4042 | qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0); | |
33e79977 QT |
4043 | |
4044 | qlt_decr_num_pend_cmds(vha); | |
51a07f84 | 4045 | percpu_ida_free(&sess->se_sess->sess_tag_pool, cmd->se_cmd.map_tag); |
82de802a | 4046 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
7560151b QT |
4047 | |
4048 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
5d964837 | 4049 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4050 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
51a07f84 NB |
4051 | } |
4052 | ||
4053 | static void qlt_do_work(struct work_struct *work) | |
4054 | { | |
4055 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
8b2f5ff3 SN |
4056 | scsi_qla_host_t *vha = cmd->vha; |
4057 | unsigned long flags; | |
4058 | ||
4059 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
4060 | list_del(&cmd->cmd_list); | |
4061 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
51a07f84 NB |
4062 | |
4063 | __qlt_do_work(cmd); | |
4064 | } | |
4065 | ||
09620eeb QT |
4066 | void qlt_clr_qp_table(struct scsi_qla_host *vha) |
4067 | { | |
4068 | unsigned long flags; | |
4069 | struct qla_hw_data *ha = vha->hw; | |
4070 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
4071 | void *node; | |
4072 | u64 key = 0; | |
4073 | ||
4074 | ql_log(ql_log_info, vha, 0x706c, | |
4075 | "User update Number of Active Qpairs %d\n", | |
4076 | ha->tgt.num_act_qpairs); | |
4077 | ||
4078 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); | |
4079 | ||
4080 | btree_for_each_safe64(&tgt->lun_qpair_map, key, node) | |
4081 | btree_remove64(&tgt->lun_qpair_map, key); | |
4082 | ||
4083 | ha->base_qpair->lun_cnt = 0; | |
4084 | for (key = 0; key < ha->max_qpairs; key++) | |
4085 | if (ha->queue_pair_map[key]) | |
4086 | ha->queue_pair_map[key]->lun_cnt = 0; | |
4087 | ||
4088 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); | |
4089 | } | |
4090 | ||
e326d22a QT |
4091 | static void qlt_assign_qpair(struct scsi_qla_host *vha, |
4092 | struct qla_tgt_cmd *cmd) | |
4093 | { | |
4094 | struct qla_qpair *qpair, *qp; | |
4095 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
4096 | struct qla_qpair_hint *h; | |
4097 | ||
4098 | if (vha->flags.qpairs_available) { | |
4099 | h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun); | |
4100 | if (unlikely(!h)) { | |
4101 | /* spread lun to qpair ratio evently */ | |
4102 | int lcnt = 0, rc; | |
4103 | struct scsi_qla_host *base_vha = | |
4104 | pci_get_drvdata(vha->hw->pdev); | |
4105 | ||
4106 | qpair = vha->hw->base_qpair; | |
4107 | if (qpair->lun_cnt == 0) { | |
4108 | qpair->lun_cnt++; | |
4109 | h = qla_qpair_to_hint(tgt, qpair); | |
4110 | BUG_ON(!h); | |
4111 | rc = btree_insert64(&tgt->lun_qpair_map, | |
4112 | cmd->unpacked_lun, h, GFP_ATOMIC); | |
4113 | if (rc) { | |
4114 | qpair->lun_cnt--; | |
4115 | ql_log(ql_log_info, vha, 0xd037, | |
4116 | "Unable to insert lun %llx into lun_qpair_map\n", | |
4117 | cmd->unpacked_lun); | |
4118 | } | |
4119 | goto out; | |
4120 | } else { | |
4121 | lcnt = qpair->lun_cnt; | |
4122 | } | |
4123 | ||
4124 | h = NULL; | |
4125 | list_for_each_entry(qp, &base_vha->qp_list, | |
4126 | qp_list_elem) { | |
4127 | if (qp->lun_cnt == 0) { | |
4128 | qp->lun_cnt++; | |
4129 | h = qla_qpair_to_hint(tgt, qp); | |
4130 | BUG_ON(!h); | |
4131 | rc = btree_insert64(&tgt->lun_qpair_map, | |
4132 | cmd->unpacked_lun, h, GFP_ATOMIC); | |
4133 | if (rc) { | |
4134 | qp->lun_cnt--; | |
4135 | ql_log(ql_log_info, vha, 0xd038, | |
4136 | "Unable to insert lun %llx into lun_qpair_map\n", | |
4137 | cmd->unpacked_lun); | |
4138 | } | |
4139 | qpair = qp; | |
4140 | goto out; | |
4141 | } else { | |
4142 | if (qp->lun_cnt < lcnt) { | |
4143 | lcnt = qp->lun_cnt; | |
4144 | qpair = qp; | |
4145 | continue; | |
4146 | } | |
4147 | } | |
4148 | } | |
4149 | BUG_ON(!qpair); | |
4150 | qpair->lun_cnt++; | |
4151 | h = qla_qpair_to_hint(tgt, qpair); | |
4152 | BUG_ON(!h); | |
4153 | rc = btree_insert64(&tgt->lun_qpair_map, | |
4154 | cmd->unpacked_lun, h, GFP_ATOMIC); | |
4155 | if (rc) { | |
4156 | qpair->lun_cnt--; | |
4157 | ql_log(ql_log_info, vha, 0xd039, | |
4158 | "Unable to insert lun %llx into lun_qpair_map\n", | |
4159 | cmd->unpacked_lun); | |
4160 | } | |
4161 | } | |
4162 | } else { | |
4163 | h = &tgt->qphints[0]; | |
4164 | } | |
4165 | out: | |
4166 | cmd->qpair = h->qpair; | |
4167 | cmd->se_cmd.cpuid = h->cpuid; | |
4168 | } | |
4169 | ||
51a07f84 | 4170 | static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, |
5d964837 | 4171 | struct fc_port *sess, |
51a07f84 NB |
4172 | struct atio_from_isp *atio) |
4173 | { | |
4174 | struct se_session *se_sess = sess->se_sess; | |
4175 | struct qla_tgt_cmd *cmd; | |
4176 | int tag; | |
4177 | ||
4178 | tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); | |
4179 | if (tag < 0) | |
4180 | return NULL; | |
4181 | ||
4182 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
4183 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
c5419e26 | 4184 | cmd->cmd_type = TYPE_TGT_CMD; |
51a07f84 NB |
4185 | memcpy(&cmd->atio, atio, sizeof(*atio)); |
4186 | cmd->state = QLA_TGT_STATE_NEW; | |
4187 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
33e79977 | 4188 | qlt_incr_num_pend_cmds(vha); |
51a07f84 NB |
4189 | cmd->vha = vha; |
4190 | cmd->se_cmd.map_tag = tag; | |
4191 | cmd->sess = sess; | |
4192 | cmd->loop_id = sess->loop_id; | |
4193 | cmd->conf_compl_supported = sess->conf_compl_supported; | |
4194 | ||
1eb42f96 | 4195 | cmd->trc_flags = 0; |
9fce1254 KS |
4196 | cmd->jiffies_at_alloc = get_jiffies_64(); |
4197 | ||
e326d22a QT |
4198 | cmd->unpacked_lun = scsilun_to_int( |
4199 | (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun); | |
4200 | qlt_assign_qpair(vha, cmd); | |
7c3f8fd1 | 4201 | cmd->reset_count = vha->hw->base_qpair->chip_reset; |
22d84726 | 4202 | cmd->vp_idx = vha->vp_idx; |
9fce1254 | 4203 | |
51a07f84 NB |
4204 | return cmd; |
4205 | } | |
4206 | ||
51a07f84 NB |
4207 | static void qlt_create_sess_from_atio(struct work_struct *work) |
4208 | { | |
4209 | struct qla_tgt_sess_op *op = container_of(work, | |
4210 | struct qla_tgt_sess_op, work); | |
4211 | scsi_qla_host_t *vha = op->vha; | |
4212 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4213 | struct fc_port *sess; |
51a07f84 NB |
4214 | struct qla_tgt_cmd *cmd; |
4215 | unsigned long flags; | |
4216 | uint8_t *s_id = op->atio.u.isp24.fcp_hdr.s_id; | |
4217 | ||
8b2f5ff3 SN |
4218 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
4219 | list_del(&op->cmd_list); | |
4220 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
4221 | ||
4222 | if (op->aborted) { | |
4223 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf083, | |
4224 | "sess_op with tag %u is aborted\n", | |
4225 | op->atio.u.isp24.exchange_addr); | |
4226 | goto out_term; | |
4227 | } | |
4228 | ||
51a07f84 | 4229 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022, |
8b2f5ff3 SN |
4230 | "qla_target(%d): Unable to find wwn login" |
4231 | " (s_id %x:%x:%x), trying to create it manually\n", | |
4232 | vha->vp_idx, s_id[0], s_id[1], s_id[2]); | |
51a07f84 NB |
4233 | |
4234 | if (op->atio.u.raw.entry_count > 1) { | |
4235 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023, | |
8b2f5ff3 | 4236 | "Dropping multy entry atio %p\n", &op->atio); |
51a07f84 NB |
4237 | goto out_term; |
4238 | } | |
4239 | ||
51a07f84 NB |
4240 | sess = qlt_make_local_sess(vha, s_id); |
4241 | /* sess has an extra creation ref. */ | |
51a07f84 NB |
4242 | |
4243 | if (!sess) | |
4244 | goto out_term; | |
4245 | /* | |
4246 | * Now obtain a pre-allocated session tag using the original op->atio | |
4247 | * packet header, and dispatch into __qlt_do_work() using the existing | |
4248 | * process context. | |
4249 | */ | |
4250 | cmd = qlt_get_tag(vha, sess, &op->atio); | |
4251 | if (!cmd) { | |
82de802a QT |
4252 | struct qla_qpair *qpair = ha->base_qpair; |
4253 | ||
4254 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); | |
4255 | qlt_send_busy(qpair, &op->atio, SAM_STAT_BUSY); | |
4256 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); | |
4257 | ||
4258 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
5d964837 | 4259 | ha->tgt.tgt_ops->put_sess(sess); |
82de802a | 4260 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
51a07f84 NB |
4261 | kfree(op); |
4262 | return; | |
4263 | } | |
726b8548 | 4264 | |
51a07f84 | 4265 | /* |
e3dc0e31 | 4266 | * __qlt_do_work() will call qlt_put_sess() to release |
51a07f84 NB |
4267 | * the extra reference taken above by qlt_make_local_sess() |
4268 | */ | |
4269 | __qlt_do_work(cmd); | |
4270 | kfree(op); | |
4271 | return; | |
51a07f84 | 4272 | out_term: |
82de802a | 4273 | qlt_send_term_exchange(vha->hw->base_qpair, NULL, &op->atio, 0, 0); |
51a07f84 | 4274 | kfree(op); |
2d70c103 NB |
4275 | } |
4276 | ||
4277 | /* ha->hardware_lock supposed to be held on entry */ | |
4278 | static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, | |
4279 | struct atio_from_isp *atio) | |
4280 | { | |
51a07f84 | 4281 | struct qla_hw_data *ha = vha->hw; |
0e8cd71c | 4282 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 4283 | struct fc_port *sess; |
2d70c103 | 4284 | struct qla_tgt_cmd *cmd; |
5d964837 | 4285 | unsigned long flags; |
2d70c103 NB |
4286 | |
4287 | if (unlikely(tgt->tgt_stop)) { | |
667024a3 | 4288 | ql_dbg(ql_dbg_io, vha, 0x3061, |
2d70c103 NB |
4289 | "New command while device %p is shutting down\n", tgt); |
4290 | return -EFAULT; | |
4291 | } | |
4292 | ||
51a07f84 NB |
4293 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id); |
4294 | if (unlikely(!sess)) { | |
4295 | struct qla_tgt_sess_op *op = kzalloc(sizeof(struct qla_tgt_sess_op), | |
4296 | GFP_ATOMIC); | |
4297 | if (!op) | |
4298 | return -ENOMEM; | |
4299 | ||
4300 | memcpy(&op->atio, atio, sizeof(*atio)); | |
78c2106a | 4301 | op->vha = vha; |
8b2f5ff3 | 4302 | |
8b631d87 | 4303 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4304 | list_add_tail(&op->cmd_list, &vha->qla_sess_op_cmd_list); |
8b631d87 | 4305 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4306 | |
51a07f84 NB |
4307 | INIT_WORK(&op->work, qlt_create_sess_from_atio); |
4308 | queue_work(qla_tgt_wq, &op->work); | |
4309 | return 0; | |
4310 | } | |
e52a8b45 AP |
4311 | |
4312 | /* Another WWN used to have our s_id. Our PLOGI scheduled its | |
4313 | * session deletion, but it's still in sess_del_work wq */ | |
726b8548 | 4314 | if (sess->deleted) { |
83548fe2 | 4315 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002, |
e52a8b45 AP |
4316 | "New command while old session %p is being deleted\n", |
4317 | sess); | |
4318 | return -EFAULT; | |
4319 | } | |
4320 | ||
51a07f84 NB |
4321 | /* |
4322 | * Do kref_get() before returning + dropping qla_hw_data->hardware_lock. | |
4323 | */ | |
726b8548 | 4324 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 4325 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004, |
726b8548 QT |
4326 | "%s: kref_get fail, %8phC oxid %x \n", |
4327 | __func__, sess->port_name, | |
4328 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
4329 | return -EFAULT; | |
4330 | } | |
51a07f84 NB |
4331 | |
4332 | cmd = qlt_get_tag(vha, sess, atio); | |
2d70c103 | 4333 | if (!cmd) { |
667024a3 | 4334 | ql_dbg(ql_dbg_io, vha, 0x3062, |
2d70c103 | 4335 | "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx); |
5d964837 QT |
4336 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
4337 | ha->tgt.tgt_ops->put_sess(sess); | |
4338 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
4339 | return -ENOMEM; |
4340 | } | |
4341 | ||
e07f8f65 | 4342 | cmd->cmd_in_wq = 1; |
1eb42f96 | 4343 | cmd->trc_flags |= TRC_NEW_CMD; |
8b2f5ff3 | 4344 | |
726b8548 | 4345 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4346 | list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list); |
726b8548 | 4347 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4348 | |
2d70c103 | 4349 | INIT_WORK(&cmd->work, qlt_do_work); |
e326d22a QT |
4350 | if (vha->flags.qpairs_available) { |
4351 | queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work); | |
4352 | } else if (ha->msix_count) { | |
fb3269ba QT |
4353 | if (cmd->atio.u.isp24.fcp_cmnd.rddata) |
4354 | queue_work_on(smp_processor_id(), qla_tgt_wq, | |
4355 | &cmd->work); | |
4356 | else | |
4357 | queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, | |
4358 | &cmd->work); | |
4359 | } else { | |
4360 | queue_work(qla_tgt_wq, &cmd->work); | |
4361 | } | |
2d70c103 | 4362 | |
82de802a | 4363 | return 0; |
2d70c103 NB |
4364 | } |
4365 | ||
4366 | /* ha->hardware_lock supposed to be held on entry */ | |
5d964837 | 4367 | static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, |
2d70c103 NB |
4368 | int fn, void *iocb, int flags) |
4369 | { | |
4370 | struct scsi_qla_host *vha = sess->vha; | |
4371 | struct qla_hw_data *ha = vha->hw; | |
4372 | struct qla_tgt_mgmt_cmd *mcmd; | |
8b2f5ff3 | 4373 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; |
2d70c103 | 4374 | int res; |
2d70c103 NB |
4375 | |
4376 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4377 | if (!mcmd) { | |
4378 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009, | |
4379 | "qla_target(%d): Allocation of management " | |
4380 | "command failed, some commands and their data could " | |
4381 | "leak\n", vha->vp_idx); | |
4382 | return -ENOMEM; | |
4383 | } | |
4384 | memset(mcmd, 0, sizeof(*mcmd)); | |
4385 | mcmd->sess = sess; | |
4386 | ||
4387 | if (iocb) { | |
4388 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4389 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4390 | } | |
4391 | mcmd->tmr_func = fn; | |
4392 | mcmd->flags = flags; | |
7c3f8fd1 | 4393 | mcmd->reset_count = ha->base_qpair->chip_reset; |
82de802a | 4394 | mcmd->qpair = ha->base_qpair; |
72fcd4eb | 4395 | mcmd->vha = vha; |
2d70c103 NB |
4396 | |
4397 | switch (fn) { | |
2d70c103 | 4398 | case QLA_TGT_LUN_RESET: |
be92fc3f QT |
4399 | abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id); |
4400 | break; | |
2d70c103 NB |
4401 | } |
4402 | ||
be92fc3f | 4403 | res = ha->tgt.tgt_ops->handle_tmr(mcmd, lun, mcmd->tmr_func, 0); |
2d70c103 NB |
4404 | if (res != 0) { |
4405 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000b, | |
4406 | "qla_target(%d): tgt.tgt_ops->handle_tmr() failed: %d\n", | |
4407 | sess->vha->vp_idx, res); | |
4408 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
4409 | return -EFAULT; | |
4410 | } | |
4411 | ||
4412 | return 0; | |
4413 | } | |
4414 | ||
4415 | /* ha->hardware_lock supposed to be held on entry */ | |
4416 | static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb) | |
4417 | { | |
4418 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4419 | struct qla_hw_data *ha = vha->hw; | |
4420 | struct qla_tgt *tgt; | |
5d964837 | 4421 | struct fc_port *sess; |
f775bd14 | 4422 | u64 unpacked_lun; |
52c82823 | 4423 | int fn; |
7560151b | 4424 | unsigned long flags; |
2d70c103 | 4425 | |
0e8cd71c | 4426 | tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 4427 | |
2d70c103 | 4428 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
7560151b QT |
4429 | |
4430 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
4431 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, |
4432 | a->u.isp24.fcp_hdr.s_id); | |
7560151b QT |
4433 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4434 | ||
f775bd14 QT |
4435 | unpacked_lun = |
4436 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
2d70c103 NB |
4437 | |
4438 | if (!sess) { | |
4439 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf024, | |
4440 | "qla_target(%d): task mgmt fn 0x%x for " | |
4441 | "non-existant session\n", vha->vp_idx, fn); | |
4442 | return qlt_sched_sess_work(tgt, QLA_TGT_SESS_WORK_TM, iocb, | |
4443 | sizeof(struct atio_from_isp)); | |
4444 | } | |
4445 | ||
726b8548 | 4446 | if (sess->deleted) |
e52a8b45 AP |
4447 | return -EFAULT; |
4448 | ||
2d70c103 NB |
4449 | return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); |
4450 | } | |
4451 | ||
4452 | /* ha->hardware_lock supposed to be held on entry */ | |
4453 | static int __qlt_abort_task(struct scsi_qla_host *vha, | |
5d964837 | 4454 | struct imm_ntfy_from_isp *iocb, struct fc_port *sess) |
2d70c103 NB |
4455 | { |
4456 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4457 | struct qla_hw_data *ha = vha->hw; | |
4458 | struct qla_tgt_mgmt_cmd *mcmd; | |
f775bd14 | 4459 | u64 unpacked_lun; |
2d70c103 NB |
4460 | int rc; |
4461 | ||
4462 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4463 | if (mcmd == NULL) { | |
4464 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f, | |
4465 | "qla_target(%d): %s: Allocation of ABORT cmd failed\n", | |
4466 | vha->vp_idx, __func__); | |
4467 | return -ENOMEM; | |
4468 | } | |
4469 | memset(mcmd, 0, sizeof(*mcmd)); | |
4470 | ||
4471 | mcmd->sess = sess; | |
4472 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4473 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4474 | ||
f775bd14 QT |
4475 | unpacked_lun = |
4476 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
7c3f8fd1 | 4477 | mcmd->reset_count = ha->base_qpair->chip_reset; |
be92fc3f | 4478 | mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK; |
82de802a | 4479 | mcmd->qpair = ha->base_qpair; |
2d70c103 | 4480 | |
be92fc3f | 4481 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func, |
2d70c103 NB |
4482 | le16_to_cpu(iocb->u.isp2x.seq_id)); |
4483 | if (rc != 0) { | |
4484 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060, | |
4485 | "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n", | |
4486 | vha->vp_idx, rc); | |
4487 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
4488 | return -EFAULT; | |
4489 | } | |
4490 | ||
4491 | return 0; | |
4492 | } | |
4493 | ||
4494 | /* ha->hardware_lock supposed to be held on entry */ | |
4495 | static int qlt_abort_task(struct scsi_qla_host *vha, | |
4496 | struct imm_ntfy_from_isp *iocb) | |
4497 | { | |
4498 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4499 | struct fc_port *sess; |
2d70c103 | 4500 | int loop_id; |
7560151b | 4501 | unsigned long flags; |
2d70c103 NB |
4502 | |
4503 | loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb); | |
4504 | ||
7560151b | 4505 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 4506 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b QT |
4507 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4508 | ||
2d70c103 NB |
4509 | if (sess == NULL) { |
4510 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025, | |
4511 | "qla_target(%d): task abort for unexisting " | |
4512 | "session\n", vha->vp_idx); | |
0e8cd71c | 4513 | return qlt_sched_sess_work(vha->vha_tgt.qla_tgt, |
2d70c103 NB |
4514 | QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb)); |
4515 | } | |
4516 | ||
4517 | return __qlt_abort_task(vha, iocb, sess); | |
4518 | } | |
4519 | ||
a6ca8878 AP |
4520 | void qlt_logo_completion_handler(fc_port_t *fcport, int rc) |
4521 | { | |
726b8548 QT |
4522 | if (rc != MBS_COMMAND_COMPLETE) { |
4523 | ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093, | |
4524 | "%s: se_sess %p / sess %p from" | |
4525 | " port %8phC loop_id %#04x s_id %02x:%02x:%02x" | |
4526 | " LOGO failed: %#x\n", | |
4527 | __func__, | |
4528 | fcport->se_sess, | |
4529 | fcport, | |
4530 | fcport->port_name, fcport->loop_id, | |
4531 | fcport->d_id.b.domain, fcport->d_id.b.area, | |
4532 | fcport->d_id.b.al_pa, rc); | |
4533 | } | |
4534 | ||
4535 | fcport->logout_completed = 1; | |
a6ca8878 AP |
4536 | } |
4537 | ||
a6ca8878 AP |
4538 | /* |
4539 | * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) | |
4540 | * | |
4541 | * Schedules sessions with matching port_id/loop_id but different wwn for | |
4542 | * deletion. Returns existing session with matching wwn if present. | |
4543 | * Null otherwise. | |
4544 | */ | |
726b8548 QT |
4545 | struct fc_port * |
4546 | qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn, | |
5d964837 | 4547 | port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess) |
a6ca8878 | 4548 | { |
5d964837 | 4549 | struct fc_port *sess = NULL, *other_sess; |
a6ca8878 AP |
4550 | uint64_t other_wwn; |
4551 | ||
b7bd104e AP |
4552 | *conflict_sess = NULL; |
4553 | ||
5d964837 | 4554 | list_for_each_entry(other_sess, &vha->vp_fcports, list) { |
a6ca8878 AP |
4555 | |
4556 | other_wwn = wwn_to_u64(other_sess->port_name); | |
4557 | ||
4558 | if (wwn == other_wwn) { | |
4559 | WARN_ON(sess); | |
4560 | sess = other_sess; | |
4561 | continue; | |
4562 | } | |
4563 | ||
4564 | /* find other sess with nport_id collision */ | |
37cacc0a | 4565 | if (port_id.b24 == other_sess->d_id.b24) { |
a6ca8878 | 4566 | if (loop_id != other_sess->loop_id) { |
726b8548 | 4567 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000c, |
a6ca8878 AP |
4568 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4569 | other_sess, other_sess->loop_id, other_wwn); | |
4570 | ||
4571 | /* | |
4572 | * logout_on_delete is set by default, but another | |
4573 | * session that has the same s_id/loop_id combo | |
4574 | * might have cleared it when requested this session | |
4575 | * deletion, so don't touch it | |
4576 | */ | |
4577 | qlt_schedule_sess_for_deletion(other_sess, true); | |
4578 | } else { | |
4579 | /* | |
4580 | * Another wwn used to have our s_id/loop_id | |
b7bd104e | 4581 | * kill the session, but don't free the loop_id |
a6ca8878 | 4582 | */ |
83548fe2 | 4583 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01b, |
726b8548 QT |
4584 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4585 | other_sess, other_sess->loop_id, other_wwn); | |
4586 | ||
4587 | ||
b7bd104e AP |
4588 | other_sess->keep_nport_handle = 1; |
4589 | *conflict_sess = other_sess; | |
a6ca8878 AP |
4590 | qlt_schedule_sess_for_deletion(other_sess, |
4591 | true); | |
4592 | } | |
4593 | continue; | |
4594 | } | |
4595 | ||
4596 | /* find other sess with nport handle collision */ | |
726b8548 QT |
4597 | if ((loop_id == other_sess->loop_id) && |
4598 | (loop_id != FC_NO_LOOP_ID)) { | |
4599 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000d, | |
a6ca8878 AP |
4600 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4601 | other_sess, other_sess->loop_id, other_wwn); | |
4602 | ||
4603 | /* Same loop_id but different s_id | |
4604 | * Ok to kill and logout */ | |
4605 | qlt_schedule_sess_for_deletion(other_sess, true); | |
4606 | } | |
4607 | } | |
4608 | ||
4609 | return sess; | |
4610 | } | |
4611 | ||
daddf5cf AP |
4612 | /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */ |
4613 | static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id) | |
4614 | { | |
4615 | struct qla_tgt_sess_op *op; | |
4616 | struct qla_tgt_cmd *cmd; | |
4617 | uint32_t key; | |
4618 | int count = 0; | |
8b631d87 | 4619 | unsigned long flags; |
daddf5cf AP |
4620 | |
4621 | key = (((u32)s_id->b.domain << 16) | | |
4622 | ((u32)s_id->b.area << 8) | | |
4623 | ((u32)s_id->b.al_pa)); | |
4624 | ||
8b631d87 | 4625 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
daddf5cf AP |
4626 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
4627 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
41dc529a | 4628 | |
daddf5cf AP |
4629 | if (op_key == key) { |
4630 | op->aborted = true; | |
4631 | count++; | |
4632 | } | |
4633 | } | |
41dc529a QT |
4634 | |
4635 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
4636 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
4637 | if (op_key == key) { | |
4638 | op->aborted = true; | |
4639 | count++; | |
4640 | } | |
4641 | } | |
4642 | ||
daddf5cf AP |
4643 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
4644 | uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
4645 | if (cmd_key == key) { | |
193b50b9 | 4646 | cmd->aborted = 1; |
daddf5cf AP |
4647 | count++; |
4648 | } | |
4649 | } | |
8b631d87 | 4650 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
daddf5cf AP |
4651 | |
4652 | return count; | |
4653 | } | |
4654 | ||
2d70c103 NB |
4655 | /* |
4656 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4657 | */ | |
4658 | static int qlt_24xx_handle_els(struct scsi_qla_host *vha, | |
4659 | struct imm_ntfy_from_isp *iocb) | |
4660 | { | |
a6ca8878 | 4661 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
df673274 | 4662 | struct qla_hw_data *ha = vha->hw; |
5d964837 | 4663 | struct fc_port *sess = NULL, *conflict_sess = NULL; |
a6ca8878 AP |
4664 | uint64_t wwn; |
4665 | port_id_t port_id; | |
4666 | uint16_t loop_id; | |
4667 | uint16_t wd3_lo; | |
2d70c103 | 4668 | int res = 0; |
5d964837 | 4669 | struct qlt_plogi_ack_t *pla; |
7560151b | 4670 | unsigned long flags; |
2d70c103 | 4671 | |
a6ca8878 AP |
4672 | wwn = wwn_to_u64(iocb->u.isp24.port_name); |
4673 | ||
4674 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
4675 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
4676 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
4677 | port_id.b.rsvd_1 = 0; | |
4678 | ||
4679 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
4680 | ||
726b8548 QT |
4681 | ql_dbg(ql_dbg_disc, vha, 0xf026, |
4682 | "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n", | |
4683 | vha->vp_idx, iocb->u.isp24.port_id[2], | |
4684 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
4685 | iocb->u.isp24.status_subcode, loop_id, | |
4686 | iocb->u.isp24.port_name); | |
2d70c103 | 4687 | |
a6ca8878 AP |
4688 | /* res = 1 means ack at the end of thread |
4689 | * res = 0 means ack async/later. | |
4690 | */ | |
2d70c103 NB |
4691 | switch (iocb->u.isp24.status_subcode) { |
4692 | case ELS_PLOGI: | |
a6ca8878 | 4693 | |
daddf5cf AP |
4694 | /* Mark all stale commands in qla_tgt_wq for deletion */ |
4695 | abort_cmds_for_s_id(vha, &port_id); | |
4696 | ||
7560151b QT |
4697 | if (wwn) { |
4698 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); | |
726b8548 QT |
4699 | sess = qlt_find_sess_invalidate_other(vha, wwn, |
4700 | port_id, loop_id, &conflict_sess); | |
7560151b QT |
4701 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); |
4702 | } | |
a6ca8878 | 4703 | |
726b8548 | 4704 | if (IS_SW_RESV_ADDR(port_id)) { |
a6ca8878 AP |
4705 | res = 1; |
4706 | break; | |
4707 | } | |
4708 | ||
b7bd104e AP |
4709 | pla = qlt_plogi_ack_find_add(vha, &port_id, iocb); |
4710 | if (!pla) { | |
a6ca8878 | 4711 | qlt_send_term_imm_notif(vha, iocb, 1); |
a6ca8878 AP |
4712 | break; |
4713 | } | |
4714 | ||
4715 | res = 0; | |
4716 | ||
726b8548 QT |
4717 | if (conflict_sess) { |
4718 | conflict_sess->login_gen++; | |
b7bd104e | 4719 | qlt_plogi_ack_link(vha, pla, conflict_sess, |
726b8548 QT |
4720 | QLT_PLOGI_LINK_CONFLICT); |
4721 | } | |
a6ca8878 | 4722 | |
726b8548 QT |
4723 | if (!sess) { |
4724 | pla->ref_count++; | |
4725 | qla24xx_post_newsess_work(vha, &port_id, | |
4726 | iocb->u.isp24.port_name, pla); | |
4727 | res = 0; | |
b7bd104e | 4728 | break; |
726b8548 | 4729 | } |
b7bd104e AP |
4730 | |
4731 | qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN); | |
726b8548 QT |
4732 | sess->fw_login_state = DSC_LS_PLOGI_PEND; |
4733 | sess->d_id = port_id; | |
4734 | sess->login_gen++; | |
4735 | ||
4736 | switch (sess->disc_state) { | |
4737 | case DSC_DELETED: | |
4738 | qlt_plogi_ack_unref(vha, pla); | |
4739 | break; | |
4740 | ||
4741 | default: | |
4742 | /* | |
4743 | * Under normal circumstances we want to release nport handle | |
4744 | * during LOGO process to avoid nport handle leaks inside FW. | |
4745 | * The exception is when LOGO is done while another PLOGI with | |
4746 | * the same nport handle is waiting as might be the case here. | |
4747 | * Note: there is always a possibily of a race where session | |
4748 | * deletion has already started for other reasons (e.g. ACL | |
4749 | * removal) and now PLOGI arrives: | |
4750 | * 1. if PLOGI arrived in FW after nport handle has been freed, | |
4751 | * FW must have assigned this PLOGI a new/same handle and we | |
4752 | * can proceed ACK'ing it as usual when session deletion | |
4753 | * completes. | |
4754 | * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT | |
4755 | * bit reached it, the handle has now been released. We'll | |
4756 | * get an error when we ACK this PLOGI. Nothing will be sent | |
4757 | * back to initiator. Initiator should eventually retry | |
4758 | * PLOGI and situation will correct itself. | |
4759 | */ | |
4760 | sess->keep_nport_handle = ((sess->loop_id == loop_id) && | |
4761 | (sess->d_id.b24 == port_id.b24)); | |
4762 | ||
83548fe2 QT |
4763 | ql_dbg(ql_dbg_disc, vha, 0x20f9, |
4764 | "%s %d %8phC post del sess\n", | |
4765 | __func__, __LINE__, sess->port_name); | |
726b8548 QT |
4766 | |
4767 | ||
4768 | qlt_schedule_sess_for_deletion_lock(sess); | |
4769 | break; | |
4770 | } | |
4771 | ||
a6ca8878 AP |
4772 | break; |
4773 | ||
2d70c103 | 4774 | case ELS_PRLI: |
a6ca8878 AP |
4775 | wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo); |
4776 | ||
7560151b QT |
4777 | if (wwn) { |
4778 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); | |
726b8548 QT |
4779 | sess = qlt_find_sess_invalidate_other(vha, wwn, port_id, |
4780 | loop_id, &conflict_sess); | |
7560151b QT |
4781 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); |
4782 | } | |
b7bd104e AP |
4783 | |
4784 | if (conflict_sess) { | |
4785 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b, | |
4786 | "PRLI with conflicting sess %p port %8phC\n", | |
4787 | conflict_sess, conflict_sess->port_name); | |
4788 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4789 | res = 0; | |
4790 | break; | |
4791 | } | |
a6ca8878 AP |
4792 | |
4793 | if (sess != NULL) { | |
ec7193e2 QT |
4794 | if (sess->fw_login_state != DSC_LS_PLOGI_PEND && |
4795 | sess->fw_login_state != DSC_LS_PLOGI_COMP) { | |
a6ca8878 AP |
4796 | /* |
4797 | * Impatient initiator sent PRLI before last | |
4798 | * PLOGI could finish. Will force him to re-try, | |
4799 | * while last one finishes. | |
4800 | */ | |
df673274 | 4801 | ql_log(ql_log_warn, sess->vha, 0xf095, |
a6ca8878 AP |
4802 | "sess %p PRLI received, before plogi ack.\n", |
4803 | sess); | |
4804 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4805 | res = 0; | |
4806 | break; | |
4807 | } | |
4808 | ||
4809 | /* | |
4810 | * This shouldn't happen under normal circumstances, | |
4811 | * since we have deleted the old session during PLOGI | |
4812 | */ | |
df673274 | 4813 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096, |
a6ca8878 AP |
4814 | "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n", |
4815 | sess->loop_id, sess, iocb->u.isp24.nport_handle); | |
4816 | ||
4817 | sess->local = 0; | |
4818 | sess->loop_id = loop_id; | |
37cacc0a | 4819 | sess->d_id = port_id; |
726b8548 | 4820 | sess->fw_login_state = DSC_LS_PRLI_PEND; |
a6ca8878 AP |
4821 | |
4822 | if (wd3_lo & BIT_7) | |
4823 | sess->conf_compl_supported = 1; | |
4824 | ||
726b8548 QT |
4825 | if ((wd3_lo & BIT_4) == 0) |
4826 | sess->port_type = FCT_INITIATOR; | |
4827 | else | |
4828 | sess->port_type = FCT_TARGET; | |
df673274 AP |
4829 | } |
4830 | res = 1; /* send notify ack */ | |
4831 | ||
4832 | /* Make session global (not used in fabric mode) */ | |
4833 | if (ha->current_topology != ISP_CFG_F) { | |
ec7193e2 | 4834 | if (sess) { |
83548fe2 | 4835 | ql_dbg(ql_dbg_disc, vha, 0x20fa, |
ec7193e2 QT |
4836 | "%s %d %8phC post nack\n", |
4837 | __func__, __LINE__, sess->port_name); | |
4838 | qla24xx_post_nack_work(vha, sess, iocb, | |
4839 | SRB_NACK_PRLI); | |
4840 | res = 0; | |
4841 | } else { | |
4842 | set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); | |
4843 | set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); | |
4844 | qla2xxx_wake_dpc(vha); | |
4845 | } | |
a6ca8878 | 4846 | } else { |
726b8548 | 4847 | if (sess) { |
83548fe2 | 4848 | ql_dbg(ql_dbg_disc, vha, 0x20fb, |
ec7193e2 QT |
4849 | "%s %d %8phC post nack\n", |
4850 | __func__, __LINE__, sess->port_name); | |
726b8548 QT |
4851 | qla24xx_post_nack_work(vha, sess, iocb, |
4852 | SRB_NACK_PRLI); | |
4853 | res = 0; | |
4854 | } | |
4855 | } | |
a6ca8878 AP |
4856 | break; |
4857 | ||
41dc529a QT |
4858 | case ELS_TPRLO: |
4859 | if (le16_to_cpu(iocb->u.isp24.flags) & | |
4860 | NOTIFY24XX_FLAGS_GLOBAL_TPRLO) { | |
4861 | loop_id = 0xFFFF; | |
4862 | qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS); | |
4863 | res = 1; | |
4864 | break; | |
4865 | } | |
4866 | /* drop through */ | |
2d70c103 NB |
4867 | case ELS_LOGO: |
4868 | case ELS_PRLO: | |
726b8548 QT |
4869 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
4870 | sess = qla2x00_find_fcport_by_loopid(vha, loop_id); | |
4871 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
4872 | ||
4873 | if (sess) { | |
4874 | sess->login_gen++; | |
4875 | sess->fw_login_state = DSC_LS_LOGO_PEND; | |
726b8548 QT |
4876 | sess->logo_ack_needed = 1; |
4877 | memcpy(sess->iocb, iocb, IOCB_SIZE); | |
4878 | } | |
4879 | ||
2d70c103 | 4880 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); |
726b8548 | 4881 | |
83548fe2 | 4882 | ql_dbg(ql_dbg_disc, vha, 0x20fc, |
726b8548 QT |
4883 | "%s: logo %llx res %d sess %p ", |
4884 | __func__, wwn, res, sess); | |
4885 | if (res == 0) { | |
41dc529a QT |
4886 | /* |
4887 | * cmd went upper layer, look for qlt_xmit_tm_rsp() | |
4888 | * for LOGO_ACK & sess delete | |
4889 | */ | |
726b8548 QT |
4890 | BUG_ON(!sess); |
4891 | res = 0; | |
4892 | } else { | |
41dc529a | 4893 | /* cmd did not go to upper layer. */ |
726b8548 QT |
4894 | if (sess) { |
4895 | qlt_schedule_sess_for_deletion_lock(sess); | |
4896 | res = 0; | |
4897 | } | |
4898 | /* else logo will be ack */ | |
4899 | } | |
2d70c103 NB |
4900 | break; |
4901 | case ELS_PDISC: | |
4902 | case ELS_ADISC: | |
4903 | { | |
0e8cd71c | 4904 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 4905 | if (tgt->link_reinit_iocb_pending) { |
82de802a QT |
4906 | qlt_send_notify_ack(ha->base_qpair, |
4907 | &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0); | |
2d70c103 NB |
4908 | tgt->link_reinit_iocb_pending = 0; |
4909 | } | |
726b8548 QT |
4910 | |
4911 | sess = qla2x00_find_fcport_by_wwpn(vha, | |
4912 | iocb->u.isp24.port_name, 1); | |
4913 | if (sess) { | |
83548fe2 | 4914 | ql_dbg(ql_dbg_disc, vha, 0x20fd, |
726b8548 QT |
4915 | "sess %p lid %d|%d DS %d LS %d\n", |
4916 | sess, sess->loop_id, loop_id, | |
4917 | sess->disc_state, sess->fw_login_state); | |
4918 | } | |
4919 | ||
2d70c103 NB |
4920 | res = 1; /* send notify ack */ |
4921 | break; | |
4922 | } | |
4923 | ||
a6ca8878 | 4924 | case ELS_FLOGI: /* should never happen */ |
2d70c103 NB |
4925 | default: |
4926 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061, | |
4927 | "qla_target(%d): Unsupported ELS command %x " | |
4928 | "received\n", vha->vp_idx, iocb->u.isp24.status_subcode); | |
4929 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); | |
4930 | break; | |
4931 | } | |
4932 | ||
4933 | return res; | |
4934 | } | |
4935 | ||
2d70c103 NB |
4936 | /* |
4937 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4938 | */ | |
4939 | static void qlt_handle_imm_notify(struct scsi_qla_host *vha, | |
4940 | struct imm_ntfy_from_isp *iocb) | |
4941 | { | |
4942 | struct qla_hw_data *ha = vha->hw; | |
4943 | uint32_t add_flags = 0; | |
4944 | int send_notify_ack = 1; | |
4945 | uint16_t status; | |
4946 | ||
4947 | status = le16_to_cpu(iocb->u.isp2x.status); | |
4948 | switch (status) { | |
4949 | case IMM_NTFY_LIP_RESET: | |
4950 | { | |
4951 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032, | |
4952 | "qla_target(%d): LIP reset (loop %#x), subcode %x\n", | |
4953 | vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle), | |
4954 | iocb->u.isp24.status_subcode); | |
4955 | ||
4956 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
4957 | send_notify_ack = 0; | |
4958 | break; | |
4959 | } | |
4960 | ||
4961 | case IMM_NTFY_LIP_LINK_REINIT: | |
4962 | { | |
0e8cd71c | 4963 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
4964 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033, |
4965 | "qla_target(%d): LINK REINIT (loop %#x, " | |
4966 | "subcode %x)\n", vha->vp_idx, | |
4967 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
4968 | iocb->u.isp24.status_subcode); | |
4969 | if (tgt->link_reinit_iocb_pending) { | |
82de802a QT |
4970 | qlt_send_notify_ack(ha->base_qpair, |
4971 | &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0); | |
2d70c103 NB |
4972 | } |
4973 | memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb)); | |
4974 | tgt->link_reinit_iocb_pending = 1; | |
4975 | /* | |
4976 | * QLogic requires to wait after LINK REINIT for possible | |
4977 | * PDISC or ADISC ELS commands | |
4978 | */ | |
4979 | send_notify_ack = 0; | |
4980 | break; | |
4981 | } | |
4982 | ||
4983 | case IMM_NTFY_PORT_LOGOUT: | |
4984 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034, | |
4985 | "qla_target(%d): Port logout (loop " | |
4986 | "%#x, subcode %x)\n", vha->vp_idx, | |
4987 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
4988 | iocb->u.isp24.status_subcode); | |
4989 | ||
4990 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0) | |
4991 | send_notify_ack = 0; | |
4992 | /* The sessions will be cleared in the callback, if needed */ | |
4993 | break; | |
4994 | ||
4995 | case IMM_NTFY_GLBL_TPRLO: | |
4996 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035, | |
4997 | "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status); | |
4998 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
4999 | send_notify_ack = 0; | |
5000 | /* The sessions will be cleared in the callback, if needed */ | |
5001 | break; | |
5002 | ||
5003 | case IMM_NTFY_PORT_CONFIG: | |
5004 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036, | |
5005 | "qla_target(%d): Port config changed (%x)\n", vha->vp_idx, | |
5006 | status); | |
5007 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
5008 | send_notify_ack = 0; | |
5009 | /* The sessions will be cleared in the callback, if needed */ | |
5010 | break; | |
5011 | ||
5012 | case IMM_NTFY_GLBL_LOGO: | |
5013 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a, | |
5014 | "qla_target(%d): Link failure detected\n", | |
5015 | vha->vp_idx); | |
5016 | /* I_T nexus loss */ | |
5017 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
5018 | send_notify_ack = 0; | |
5019 | break; | |
5020 | ||
5021 | case IMM_NTFY_IOCB_OVERFLOW: | |
5022 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b, | |
5023 | "qla_target(%d): Cannot provide requested " | |
5024 | "capability (IOCB overflowed the immediate notify " | |
5025 | "resource count)\n", vha->vp_idx); | |
5026 | break; | |
5027 | ||
5028 | case IMM_NTFY_ABORT_TASK: | |
5029 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037, | |
5030 | "qla_target(%d): Abort Task (S %08x I %#x -> " | |
5031 | "L %#x)\n", vha->vp_idx, | |
5032 | le16_to_cpu(iocb->u.isp2x.seq_id), | |
5033 | GET_TARGET_ID(ha, (struct atio_from_isp *)iocb), | |
5034 | le16_to_cpu(iocb->u.isp2x.lun)); | |
5035 | if (qlt_abort_task(vha, iocb) == 0) | |
5036 | send_notify_ack = 0; | |
5037 | break; | |
5038 | ||
5039 | case IMM_NTFY_RESOURCE: | |
5040 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c, | |
5041 | "qla_target(%d): Out of resources, host %ld\n", | |
5042 | vha->vp_idx, vha->host_no); | |
5043 | break; | |
5044 | ||
5045 | case IMM_NTFY_MSG_RX: | |
5046 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038, | |
5047 | "qla_target(%d): Immediate notify task %x\n", | |
5048 | vha->vp_idx, iocb->u.isp2x.task_flags); | |
5049 | if (qlt_handle_task_mgmt(vha, iocb) == 0) | |
5050 | send_notify_ack = 0; | |
5051 | break; | |
5052 | ||
5053 | case IMM_NTFY_ELS: | |
5054 | if (qlt_24xx_handle_els(vha, iocb) == 0) | |
5055 | send_notify_ack = 0; | |
5056 | break; | |
2d70c103 NB |
5057 | default: |
5058 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d, | |
5059 | "qla_target(%d): Received unknown immediate " | |
5060 | "notify status %x\n", vha->vp_idx, status); | |
5061 | break; | |
5062 | } | |
5063 | ||
5064 | if (send_notify_ack) | |
82de802a QT |
5065 | qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0, |
5066 | 0, 0); | |
2d70c103 NB |
5067 | } |
5068 | ||
5069 | /* | |
5070 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
5071 | * This function sends busy to ISP 2xxx or 24xx. | |
5072 | */ | |
82de802a | 5073 | static int __qlt_send_busy(struct qla_qpair *qpair, |
2d70c103 NB |
5074 | struct atio_from_isp *atio, uint16_t status) |
5075 | { | |
82de802a | 5076 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
5077 | struct ctio7_to_24xx *ctio24; |
5078 | struct qla_hw_data *ha = vha->hw; | |
5079 | request_t *pkt; | |
5d964837 | 5080 | struct fc_port *sess = NULL; |
7560151b | 5081 | unsigned long flags; |
f7e761f5 | 5082 | u16 temp; |
2d70c103 | 5083 | |
7560151b | 5084 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
5085 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, |
5086 | atio->u.isp24.fcp_hdr.s_id); | |
7560151b | 5087 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 5088 | if (!sess) { |
82de802a | 5089 | qlt_send_term_exchange(qpair, NULL, atio, 1, 0); |
33e79977 | 5090 | return 0; |
2d70c103 NB |
5091 | } |
5092 | /* Sending marker isn't necessary, since we called from ISR */ | |
5093 | ||
82de802a | 5094 | pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL); |
2d70c103 | 5095 | if (!pkt) { |
667024a3 | 5096 | ql_dbg(ql_dbg_io, vha, 0x3063, |
2d70c103 NB |
5097 | "qla_target(%d): %s failed: unable to allocate " |
5098 | "request packet", vha->vp_idx, __func__); | |
33e79977 | 5099 | return -ENOMEM; |
2d70c103 NB |
5100 | } |
5101 | ||
60a9eadb | 5102 | qpair->tgt_counters.num_q_full_sent++; |
2d70c103 NB |
5103 | pkt->entry_count = 1; |
5104 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
5105 | ||
5106 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
5107 | ctio24->entry_type = CTIO_TYPE7; | |
5108 | ctio24->nport_handle = sess->loop_id; | |
ad950360 | 5109 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
5110 | ctio24->vp_index = vha->vp_idx; |
5111 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
5112 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
5113 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
5114 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 | 5115 | temp = (atio->u.isp24.attr << 9) | |
2d70c103 | 5116 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS | |
f7e761f5 QT |
5117 | CTIO7_FLAGS_DONT_RET_CTIO; |
5118 | ctio24->u.status1.flags = cpu_to_le16(temp); | |
2d70c103 NB |
5119 | /* |
5120 | * CTIO from fw w/o se_cmd doesn't provide enough info to retry it, | |
5121 | * if the explicit conformation is used. | |
5122 | */ | |
5123 | ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id); | |
5124 | ctio24->u.status1.scsi_status = cpu_to_le16(status); | |
63163e06 HM |
5125 | /* Memory Barrier */ |
5126 | wmb(); | |
8abfa9e2 QT |
5127 | if (qpair->reqq_start_iocbs) |
5128 | qpair->reqq_start_iocbs(qpair); | |
5129 | else | |
5130 | qla2x00_start_iocbs(vha, qpair->req); | |
33e79977 QT |
5131 | return 0; |
5132 | } | |
5133 | ||
5134 | /* | |
5135 | * This routine is used to allocate a command for either a QFull condition | |
5136 | * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go | |
5137 | * out previously. | |
5138 | */ | |
5139 | static void | |
5140 | qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, | |
5141 | struct atio_from_isp *atio, uint16_t status, int qfull) | |
5142 | { | |
5143 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
5144 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5145 | struct fc_port *sess; |
33e79977 QT |
5146 | struct se_session *se_sess; |
5147 | struct qla_tgt_cmd *cmd; | |
5148 | int tag; | |
82de802a | 5149 | unsigned long flags; |
33e79977 QT |
5150 | |
5151 | if (unlikely(tgt->tgt_stop)) { | |
5152 | ql_dbg(ql_dbg_io, vha, 0x300a, | |
5153 | "New command while device %p is shutting down\n", tgt); | |
5154 | return; | |
5155 | } | |
5156 | ||
5157 | if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) { | |
5158 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5159 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5160 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5161 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5162 | vha->hw->tgt.num_qfull_cmds_dropped; |
5163 | ||
5164 | ql_dbg(ql_dbg_io, vha, 0x3068, | |
5165 | "qla_target(%d): %s: QFull CMD dropped[%d]\n", | |
5166 | vha->vp_idx, __func__, | |
5167 | vha->hw->tgt.num_qfull_cmds_dropped); | |
5168 | ||
5169 | qlt_chk_exch_leak_thresh_hold(vha); | |
5170 | return; | |
5171 | } | |
5172 | ||
5173 | sess = ha->tgt.tgt_ops->find_sess_by_s_id | |
5174 | (vha, atio->u.isp24.fcp_hdr.s_id); | |
5175 | if (!sess) | |
5176 | return; | |
5177 | ||
5178 | se_sess = sess->se_sess; | |
5179 | ||
5180 | tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); | |
5181 | if (tag < 0) | |
5182 | return; | |
5183 | ||
5184 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
5185 | if (!cmd) { | |
5186 | ql_dbg(ql_dbg_io, vha, 0x3009, | |
5187 | "qla_target(%d): %s: Allocation of cmd failed\n", | |
5188 | vha->vp_idx, __func__); | |
5189 | ||
5190 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5191 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5192 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5193 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5194 | vha->hw->tgt.num_qfull_cmds_dropped; |
5195 | ||
5196 | qlt_chk_exch_leak_thresh_hold(vha); | |
5197 | return; | |
5198 | } | |
5199 | ||
5200 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
5201 | ||
5202 | qlt_incr_num_pend_cmds(vha); | |
5203 | INIT_LIST_HEAD(&cmd->cmd_list); | |
5204 | memcpy(&cmd->atio, atio, sizeof(*atio)); | |
5205 | ||
5206 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
5207 | cmd->vha = vha; | |
7c3f8fd1 | 5208 | cmd->reset_count = ha->base_qpair->chip_reset; |
33e79977 | 5209 | cmd->q_full = 1; |
82de802a | 5210 | cmd->qpair = ha->base_qpair; |
33e79977 QT |
5211 | |
5212 | if (qfull) { | |
5213 | cmd->q_full = 1; | |
5214 | /* NOTE: borrowing the state field to carry the status */ | |
5215 | cmd->state = status; | |
5216 | } else | |
5217 | cmd->term_exchg = 1; | |
5218 | ||
82de802a | 5219 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); |
33e79977 QT |
5220 | list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list); |
5221 | ||
5222 | vha->hw->tgt.num_qfull_cmds_alloc++; | |
5223 | if (vha->hw->tgt.num_qfull_cmds_alloc > | |
fc90adaf JC |
5224 | vha->qla_stats.stat_max_qfull_cmds_alloc) |
5225 | vha->qla_stats.stat_max_qfull_cmds_alloc = | |
33e79977 | 5226 | vha->hw->tgt.num_qfull_cmds_alloc; |
82de802a | 5227 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); |
33e79977 QT |
5228 | } |
5229 | ||
5230 | int | |
82de802a | 5231 | qlt_free_qfull_cmds(struct qla_qpair *qpair) |
33e79977 | 5232 | { |
82de802a | 5233 | struct scsi_qla_host *vha = qpair->vha; |
33e79977 QT |
5234 | struct qla_hw_data *ha = vha->hw; |
5235 | unsigned long flags; | |
5236 | struct qla_tgt_cmd *cmd, *tcmd; | |
82de802a | 5237 | struct list_head free_list, q_full_list; |
33e79977 QT |
5238 | int rc = 0; |
5239 | ||
5240 | if (list_empty(&ha->tgt.q_full_list)) | |
5241 | return 0; | |
5242 | ||
5243 | INIT_LIST_HEAD(&free_list); | |
82de802a | 5244 | INIT_LIST_HEAD(&q_full_list); |
33e79977 | 5245 | |
82de802a | 5246 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); |
33e79977 | 5247 | if (list_empty(&ha->tgt.q_full_list)) { |
82de802a | 5248 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); |
33e79977 QT |
5249 | return 0; |
5250 | } | |
5251 | ||
82de802a QT |
5252 | list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list); |
5253 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
5254 | ||
5255 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); | |
5256 | list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) { | |
33e79977 QT |
5257 | if (cmd->q_full) |
5258 | /* cmd->state is a borrowed field to hold status */ | |
82de802a | 5259 | rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state); |
33e79977 | 5260 | else if (cmd->term_exchg) |
82de802a | 5261 | rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio); |
33e79977 QT |
5262 | |
5263 | if (rc == -ENOMEM) | |
5264 | break; | |
5265 | ||
5266 | if (cmd->q_full) | |
5267 | ql_dbg(ql_dbg_io, vha, 0x3006, | |
5268 | "%s: busy sent for ox_id[%04x]\n", __func__, | |
5269 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5270 | else if (cmd->term_exchg) | |
5271 | ql_dbg(ql_dbg_io, vha, 0x3007, | |
5272 | "%s: Term exchg sent for ox_id[%04x]\n", __func__, | |
5273 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5274 | else | |
5275 | ql_dbg(ql_dbg_io, vha, 0x3008, | |
5276 | "%s: Unexpected cmd in QFull list %p\n", __func__, | |
5277 | cmd); | |
5278 | ||
5279 | list_del(&cmd->cmd_list); | |
5280 | list_add_tail(&cmd->cmd_list, &free_list); | |
5281 | ||
5282 | /* piggy back on hardware_lock for protection */ | |
5283 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
5284 | } | |
82de802a | 5285 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
33e79977 QT |
5286 | |
5287 | cmd = NULL; | |
5288 | ||
5289 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
5290 | list_del(&cmd->cmd_list); | |
5291 | /* This cmd was never sent to TCM. There is no need | |
5292 | * to schedule free or call free_cmd | |
5293 | */ | |
5294 | qlt_free_cmd(cmd); | |
5295 | } | |
82de802a QT |
5296 | |
5297 | if (!list_empty(&q_full_list)) { | |
5298 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
5299 | list_splice(&q_full_list, &vha->hw->tgt.q_full_list); | |
5300 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
5301 | } | |
5302 | ||
33e79977 QT |
5303 | return rc; |
5304 | } | |
5305 | ||
5306 | static void | |
82de802a QT |
5307 | qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio, |
5308 | uint16_t status) | |
33e79977 QT |
5309 | { |
5310 | int rc = 0; | |
82de802a | 5311 | struct scsi_qla_host *vha = qpair->vha; |
33e79977 | 5312 | |
82de802a | 5313 | rc = __qlt_send_busy(qpair, atio, status); |
33e79977 QT |
5314 | if (rc == -ENOMEM) |
5315 | qlt_alloc_qfull_cmd(vha, atio, status, 1); | |
5316 | } | |
5317 | ||
5318 | static int | |
82de802a QT |
5319 | qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair, |
5320 | struct atio_from_isp *atio, uint8_t ha_locked) | |
33e79977 QT |
5321 | { |
5322 | struct qla_hw_data *ha = vha->hw; | |
5323 | uint16_t status; | |
8b666809 | 5324 | unsigned long flags; |
33e79977 QT |
5325 | |
5326 | if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha)) | |
5327 | return 0; | |
5328 | ||
8b666809 QT |
5329 | if (!ha_locked) |
5330 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
33e79977 | 5331 | status = temp_sam_status; |
82de802a | 5332 | qlt_send_busy(qpair, atio, status); |
8b666809 QT |
5333 | if (!ha_locked) |
5334 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
5335 | ||
33e79977 | 5336 | return 1; |
2d70c103 NB |
5337 | } |
5338 | ||
5339 | /* ha->hardware_lock supposed to be held on entry */ | |
5340 | /* called via callback from qla2xxx */ | |
5341 | static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, | |
2f424b9b | 5342 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 NB |
5343 | { |
5344 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5345 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 5346 | int rc; |
2f424b9b | 5347 | unsigned long flags; |
2d70c103 NB |
5348 | |
5349 | if (unlikely(tgt == NULL)) { | |
ec7193e2 | 5350 | ql_dbg(ql_dbg_tgt, vha, 0x3064, |
2d70c103 NB |
5351 | "ATIO pkt, but no tgt (ha %p)", ha); |
5352 | return; | |
5353 | } | |
2d70c103 NB |
5354 | /* |
5355 | * In tgt_stop mode we also should allow all requests to pass. | |
5356 | * Otherwise, some commands can stuck. | |
5357 | */ | |
5358 | ||
2f424b9b | 5359 | tgt->atio_irq_cmd_count++; |
2d70c103 NB |
5360 | |
5361 | switch (atio->u.raw.entry_type) { | |
5362 | case ATIO_TYPE7: | |
2d70c103 NB |
5363 | if (unlikely(atio->u.isp24.exchange_addr == |
5364 | ATIO_EXCHANGE_ADDRESS_UNKNOWN)) { | |
667024a3 | 5365 | ql_dbg(ql_dbg_io, vha, 0x3065, |
2d70c103 NB |
5366 | "qla_target(%d): ATIO_TYPE7 " |
5367 | "received with UNKNOWN exchange address, " | |
5368 | "sending QUEUE_FULL\n", vha->vp_idx); | |
2f424b9b QT |
5369 | if (!ha_locked) |
5370 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
82de802a QT |
5371 | qlt_send_busy(ha->base_qpair, atio, |
5372 | SAM_STAT_TASK_SET_FULL); | |
2f424b9b | 5373 | if (!ha_locked) |
82de802a QT |
5374 | spin_unlock_irqrestore(&ha->hardware_lock, |
5375 | flags); | |
2d70c103 NB |
5376 | break; |
5377 | } | |
33e79977 | 5378 | |
33e79977 | 5379 | if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) { |
82de802a QT |
5380 | rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair, |
5381 | atio, ha_locked); | |
33e79977 | 5382 | if (rc != 0) { |
2f424b9b | 5383 | tgt->atio_irq_cmd_count--; |
33e79977 QT |
5384 | return; |
5385 | } | |
2d70c103 | 5386 | rc = qlt_handle_cmd_for_atio(vha, atio); |
33e79977 | 5387 | } else { |
2d70c103 | 5388 | rc = qlt_handle_task_mgmt(vha, atio); |
33e79977 | 5389 | } |
2d70c103 NB |
5390 | if (unlikely(rc != 0)) { |
5391 | if (rc == -ESRCH) { | |
2f424b9b | 5392 | if (!ha_locked) |
82de802a QT |
5393 | spin_lock_irqsave(&ha->hardware_lock, |
5394 | flags); | |
2f424b9b | 5395 | |
2d70c103 | 5396 | #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */ |
82de802a QT |
5397 | qlt_send_busy(ha->base_qpair, atio, |
5398 | SAM_STAT_BUSY); | |
2d70c103 | 5399 | #else |
82de802a QT |
5400 | qlt_send_term_exchange(ha->base_qpair, NULL, |
5401 | atio, 1, 0); | |
2d70c103 | 5402 | #endif |
2f424b9b | 5403 | if (!ha_locked) |
82de802a QT |
5404 | spin_unlock_irqrestore( |
5405 | &ha->hardware_lock, flags); | |
2d70c103 NB |
5406 | } else { |
5407 | if (tgt->tgt_stop) { | |
5408 | ql_dbg(ql_dbg_tgt, vha, 0xe059, | |
5409 | "qla_target: Unable to send " | |
5410 | "command to target for req, " | |
5411 | "ignoring.\n"); | |
5412 | } else { | |
5413 | ql_dbg(ql_dbg_tgt, vha, 0xe05a, | |
5414 | "qla_target(%d): Unable to send " | |
5415 | "command to target, sending BUSY " | |
5416 | "status.\n", vha->vp_idx); | |
2f424b9b QT |
5417 | if (!ha_locked) |
5418 | spin_lock_irqsave( | |
5419 | &ha->hardware_lock, flags); | |
82de802a QT |
5420 | qlt_send_busy(ha->base_qpair, |
5421 | atio, SAM_STAT_BUSY); | |
2f424b9b QT |
5422 | if (!ha_locked) |
5423 | spin_unlock_irqrestore( | |
5424 | &ha->hardware_lock, flags); | |
2d70c103 NB |
5425 | } |
5426 | } | |
5427 | } | |
5428 | break; | |
5429 | ||
5430 | case IMMED_NOTIFY_TYPE: | |
5431 | { | |
5432 | if (unlikely(atio->u.isp2x.entry_status != 0)) { | |
5433 | ql_dbg(ql_dbg_tgt, vha, 0xe05b, | |
5434 | "qla_target(%d): Received ATIO packet %x " | |
5435 | "with error status %x\n", vha->vp_idx, | |
5436 | atio->u.raw.entry_type, | |
5437 | atio->u.isp2x.entry_status); | |
5438 | break; | |
5439 | } | |
5440 | ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO"); | |
2f424b9b QT |
5441 | |
5442 | if (!ha_locked) | |
5443 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2d70c103 | 5444 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio); |
2f424b9b QT |
5445 | if (!ha_locked) |
5446 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2d70c103 NB |
5447 | break; |
5448 | } | |
5449 | ||
5450 | default: | |
5451 | ql_dbg(ql_dbg_tgt, vha, 0xe05c, | |
5452 | "qla_target(%d): Received unknown ATIO atio " | |
5453 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
5454 | break; | |
5455 | } | |
5456 | ||
2f424b9b | 5457 | tgt->atio_irq_cmd_count--; |
2d70c103 NB |
5458 | } |
5459 | ||
5460 | /* ha->hardware_lock supposed to be held on entry */ | |
5461 | /* called via callback from qla2xxx */ | |
82de802a QT |
5462 | static void qlt_response_pkt(struct scsi_qla_host *vha, |
5463 | struct rsp_que *rsp, response_t *pkt) | |
2d70c103 | 5464 | { |
0e8cd71c | 5465 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
5466 | |
5467 | if (unlikely(tgt == NULL)) { | |
5468 | ql_dbg(ql_dbg_tgt, vha, 0xe05d, | |
60a9eadb QT |
5469 | "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n", |
5470 | vha->vp_idx, pkt->entry_type, vha->hw); | |
2d70c103 NB |
5471 | return; |
5472 | } | |
5473 | ||
2d70c103 NB |
5474 | /* |
5475 | * In tgt_stop mode we also should allow all requests to pass. | |
5476 | * Otherwise, some commands can stuck. | |
5477 | */ | |
5478 | ||
2d70c103 | 5479 | switch (pkt->entry_type) { |
f83adb61 | 5480 | case CTIO_CRC2: |
2d70c103 NB |
5481 | case CTIO_TYPE7: |
5482 | { | |
5483 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
82de802a | 5484 | qlt_do_ctio_completion(vha, rsp, entry->handle, |
2d70c103 NB |
5485 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), |
5486 | entry); | |
5487 | break; | |
5488 | } | |
5489 | ||
5490 | case ACCEPT_TGT_IO_TYPE: | |
5491 | { | |
5492 | struct atio_from_isp *atio = (struct atio_from_isp *)pkt; | |
5493 | int rc; | |
2d70c103 | 5494 | if (atio->u.isp2x.status != |
ad950360 | 5495 | cpu_to_le16(ATIO_CDB_VALID)) { |
2d70c103 NB |
5496 | ql_dbg(ql_dbg_tgt, vha, 0xe05e, |
5497 | "qla_target(%d): ATIO with error " | |
5498 | "status %x received\n", vha->vp_idx, | |
5499 | le16_to_cpu(atio->u.isp2x.status)); | |
5500 | break; | |
5501 | } | |
2d70c103 | 5502 | |
82de802a | 5503 | rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1); |
ba68a635 | 5504 | if (rc != 0) |
33e79977 | 5505 | return; |
33e79977 | 5506 | |
2d70c103 NB |
5507 | rc = qlt_handle_cmd_for_atio(vha, atio); |
5508 | if (unlikely(rc != 0)) { | |
5509 | if (rc == -ESRCH) { | |
5510 | #if 1 /* With TERM EXCHANGE some FC cards refuse to boot */ | |
82de802a | 5511 | qlt_send_busy(rsp->qpair, atio, 0); |
2d70c103 | 5512 | #else |
82de802a | 5513 | qlt_send_term_exchange(rsp->qpair, NULL, atio, 1, 0); |
2d70c103 NB |
5514 | #endif |
5515 | } else { | |
5516 | if (tgt->tgt_stop) { | |
5517 | ql_dbg(ql_dbg_tgt, vha, 0xe05f, | |
5518 | "qla_target: Unable to send " | |
5519 | "command to target, sending TERM " | |
5520 | "EXCHANGE for rsp\n"); | |
82de802a | 5521 | qlt_send_term_exchange(rsp->qpair, NULL, |
a07100e0 | 5522 | atio, 1, 0); |
2d70c103 NB |
5523 | } else { |
5524 | ql_dbg(ql_dbg_tgt, vha, 0xe060, | |
5525 | "qla_target(%d): Unable to send " | |
5526 | "command to target, sending BUSY " | |
5527 | "status\n", vha->vp_idx); | |
82de802a | 5528 | qlt_send_busy(rsp->qpair, atio, 0); |
2d70c103 NB |
5529 | } |
5530 | } | |
5531 | } | |
5532 | } | |
5533 | break; | |
5534 | ||
5535 | case CONTINUE_TGT_IO_TYPE: | |
5536 | { | |
5537 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
82de802a | 5538 | qlt_do_ctio_completion(vha, rsp, entry->handle, |
2d70c103 NB |
5539 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), |
5540 | entry); | |
5541 | break; | |
5542 | } | |
5543 | ||
5544 | case CTIO_A64_TYPE: | |
5545 | { | |
5546 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
82de802a | 5547 | qlt_do_ctio_completion(vha, rsp, entry->handle, |
2d70c103 NB |
5548 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), |
5549 | entry); | |
5550 | break; | |
5551 | } | |
5552 | ||
5553 | case IMMED_NOTIFY_TYPE: | |
5554 | ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n"); | |
5555 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt); | |
5556 | break; | |
5557 | ||
5558 | case NOTIFY_ACK_TYPE: | |
5559 | if (tgt->notify_ack_expected > 0) { | |
5560 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
5561 | ql_dbg(ql_dbg_tgt, vha, 0xe036, | |
5562 | "NOTIFY_ACK seq %08x status %x\n", | |
5563 | le16_to_cpu(entry->u.isp2x.seq_id), | |
5564 | le16_to_cpu(entry->u.isp2x.status)); | |
5565 | tgt->notify_ack_expected--; | |
5566 | if (entry->u.isp2x.status != | |
ad950360 | 5567 | cpu_to_le16(NOTIFY_ACK_SUCCESS)) { |
2d70c103 NB |
5568 | ql_dbg(ql_dbg_tgt, vha, 0xe061, |
5569 | "qla_target(%d): NOTIFY_ACK " | |
5570 | "failed %x\n", vha->vp_idx, | |
5571 | le16_to_cpu(entry->u.isp2x.status)); | |
5572 | } | |
5573 | } else { | |
5574 | ql_dbg(ql_dbg_tgt, vha, 0xe062, | |
5575 | "qla_target(%d): Unexpected NOTIFY_ACK received\n", | |
5576 | vha->vp_idx); | |
5577 | } | |
5578 | break; | |
5579 | ||
5580 | case ABTS_RECV_24XX: | |
5581 | ql_dbg(ql_dbg_tgt, vha, 0xe037, | |
5582 | "ABTS_RECV_24XX: instance %d\n", vha->vp_idx); | |
5583 | qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt); | |
5584 | break; | |
5585 | ||
5586 | case ABTS_RESP_24XX: | |
5587 | if (tgt->abts_resp_expected > 0) { | |
5588 | struct abts_resp_from_24xx_fw *entry = | |
5589 | (struct abts_resp_from_24xx_fw *)pkt; | |
5590 | ql_dbg(ql_dbg_tgt, vha, 0xe038, | |
5591 | "ABTS_RESP_24XX: compl_status %x\n", | |
5592 | entry->compl_status); | |
5593 | tgt->abts_resp_expected--; | |
5594 | if (le16_to_cpu(entry->compl_status) != | |
5595 | ABTS_RESP_COMPL_SUCCESS) { | |
5596 | if ((entry->error_subcode1 == 0x1E) && | |
5597 | (entry->error_subcode2 == 0)) { | |
5598 | /* | |
5599 | * We've got a race here: aborted | |
5600 | * exchange not terminated, i.e. | |
5601 | * response for the aborted command was | |
5602 | * sent between the abort request was | |
5603 | * received and processed. | |
5604 | * Unfortunately, the firmware has a | |
5605 | * silly requirement that all aborted | |
5606 | * exchanges must be explicitely | |
5607 | * terminated, otherwise it refuses to | |
5608 | * send responses for the abort | |
5609 | * requests. So, we have to | |
5610 | * (re)terminate the exchange and retry | |
5611 | * the abort response. | |
5612 | */ | |
5613 | qlt_24xx_retry_term_exchange(vha, | |
5614 | entry); | |
5615 | } else | |
5616 | ql_dbg(ql_dbg_tgt, vha, 0xe063, | |
5617 | "qla_target(%d): ABTS_RESP_24XX " | |
5618 | "failed %x (subcode %x:%x)", | |
5619 | vha->vp_idx, entry->compl_status, | |
5620 | entry->error_subcode1, | |
5621 | entry->error_subcode2); | |
5622 | } | |
5623 | } else { | |
5624 | ql_dbg(ql_dbg_tgt, vha, 0xe064, | |
5625 | "qla_target(%d): Unexpected ABTS_RESP_24XX " | |
5626 | "received\n", vha->vp_idx); | |
5627 | } | |
5628 | break; | |
5629 | ||
5630 | default: | |
5631 | ql_dbg(ql_dbg_tgt, vha, 0xe065, | |
5632 | "qla_target(%d): Received unknown response pkt " | |
5633 | "type %x\n", vha->vp_idx, pkt->entry_type); | |
5634 | break; | |
5635 | } | |
5636 | ||
2d70c103 NB |
5637 | } |
5638 | ||
5639 | /* | |
5640 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
5641 | */ | |
5642 | void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, | |
5643 | uint16_t *mailbox) | |
5644 | { | |
5645 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5646 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
4f1d0f19 | 5647 | int login_code; |
2d70c103 | 5648 | |
3a33dc95 | 5649 | if (!tgt || tgt->tgt_stop || tgt->tgt_stopped) |
2d70c103 NB |
5650 | return; |
5651 | ||
2d70c103 NB |
5652 | if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) && |
5653 | IS_QLA2100(ha)) | |
5654 | return; | |
5655 | /* | |
5656 | * In tgt_stop mode we also should allow all requests to pass. | |
5657 | * Otherwise, some commands can stuck. | |
5658 | */ | |
5659 | ||
2d70c103 NB |
5660 | |
5661 | switch (code) { | |
5662 | case MBA_RESET: /* Reset */ | |
5663 | case MBA_SYSTEM_ERR: /* System Error */ | |
5664 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
5665 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ | |
5666 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a, | |
5667 | "qla_target(%d): System error async event %#x " | |
6efb3c0a | 5668 | "occurred", vha->vp_idx, code); |
2d70c103 NB |
5669 | break; |
5670 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */ | |
5671 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
5672 | break; | |
5673 | ||
5674 | case MBA_LOOP_UP: | |
5675 | { | |
5676 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b, | |
6efb3c0a | 5677 | "qla_target(%d): Async LOOP_UP occurred " |
4f1d0f19 AC |
5678 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, |
5679 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5680 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 | 5681 | if (tgt->link_reinit_iocb_pending) { |
82de802a QT |
5682 | qlt_send_notify_ack(ha->base_qpair, |
5683 | (void *)&tgt->link_reinit_iocb, | |
2d70c103 NB |
5684 | 0, 0, 0, 0, 0, 0); |
5685 | tgt->link_reinit_iocb_pending = 0; | |
5686 | } | |
5687 | break; | |
5688 | } | |
5689 | ||
5690 | case MBA_LIP_OCCURRED: | |
5691 | case MBA_LOOP_DOWN: | |
5692 | case MBA_LIP_RESET: | |
5693 | case MBA_RSCN_UPDATE: | |
5694 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c, | |
6efb3c0a | 5695 | "qla_target(%d): Async event %#x occurred " |
4f1d0f19 AC |
5696 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
5697 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5698 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 NB |
5699 | break; |
5700 | ||
ead03855 | 5701 | case MBA_REJECTED_FCP_CMD: |
83548fe2 QT |
5702 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017, |
5703 | "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", | |
5704 | vha->vp_idx, | |
5705 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5706 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
ead03855 QT |
5707 | |
5708 | if (le16_to_cpu(mailbox[3]) == 1) { | |
5709 | /* exchange starvation. */ | |
5710 | vha->hw->exch_starvation++; | |
5711 | if (vha->hw->exch_starvation > 5) { | |
83548fe2 | 5712 | ql_log(ql_log_warn, vha, 0xd03a, |
ead03855 QT |
5713 | "Exchange starvation-. Resetting RISC\n"); |
5714 | ||
5715 | vha->hw->exch_starvation = 0; | |
5716 | if (IS_P3P_TYPE(vha->hw)) | |
5717 | set_bit(FCOE_CTX_RESET_NEEDED, | |
5718 | &vha->dpc_flags); | |
5719 | else | |
5720 | set_bit(ISP_ABORT_NEEDED, | |
5721 | &vha->dpc_flags); | |
5722 | qla2xxx_wake_dpc(vha); | |
5723 | } | |
5724 | } | |
5725 | break; | |
5726 | ||
2d70c103 NB |
5727 | case MBA_PORT_UPDATE: |
5728 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d, | |
5729 | "qla_target(%d): Port update async event %#x " | |
6efb3c0a | 5730 | "occurred: updating the ports database (m[0]=%x, m[1]=%x, " |
4f1d0f19 AC |
5731 | "m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
5732 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
5733 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
5734 | ||
5735 | login_code = le16_to_cpu(mailbox[2]); | |
ead03855 | 5736 | if (login_code == 0x4) { |
2d70c103 NB |
5737 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e, |
5738 | "Async MB 2: Got PLOGI Complete\n"); | |
ead03855 QT |
5739 | vha->hw->exch_starvation = 0; |
5740 | } else if (login_code == 0x7) | |
2d70c103 NB |
5741 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f, |
5742 | "Async MB 2: Port Logged Out\n"); | |
5743 | break; | |
2d70c103 | 5744 | default: |
2d70c103 NB |
5745 | break; |
5746 | } | |
5747 | ||
2d70c103 NB |
5748 | } |
5749 | ||
5750 | static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha, | |
5751 | uint16_t loop_id) | |
5752 | { | |
726b8548 | 5753 | fc_port_t *fcport, *tfcp, *del; |
2d70c103 | 5754 | int rc; |
726b8548 QT |
5755 | unsigned long flags; |
5756 | u8 newfcport = 0; | |
2d70c103 NB |
5757 | |
5758 | fcport = kzalloc(sizeof(*fcport), GFP_KERNEL); | |
5759 | if (!fcport) { | |
5760 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f, | |
5761 | "qla_target(%d): Allocation of tmp FC port failed", | |
5762 | vha->vp_idx); | |
5763 | return NULL; | |
5764 | } | |
5765 | ||
2d70c103 NB |
5766 | fcport->loop_id = loop_id; |
5767 | ||
15f30a57 | 5768 | rc = qla24xx_gpdb_wait(vha, fcport, 0); |
2d70c103 NB |
5769 | if (rc != QLA_SUCCESS) { |
5770 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070, | |
5771 | "qla_target(%d): Failed to retrieve fcport " | |
5772 | "information -- get_port_database() returned %x " | |
5773 | "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id); | |
5774 | kfree(fcport); | |
5775 | return NULL; | |
5776 | } | |
5777 | ||
726b8548 QT |
5778 | del = NULL; |
5779 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
5780 | tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1); | |
5781 | ||
5782 | if (tfcp) { | |
5783 | tfcp->d_id = fcport->d_id; | |
5784 | tfcp->port_type = fcport->port_type; | |
5785 | tfcp->supported_classes = fcport->supported_classes; | |
5786 | tfcp->flags |= fcport->flags; | |
5787 | ||
5788 | del = fcport; | |
5789 | fcport = tfcp; | |
5790 | } else { | |
5791 | if (vha->hw->current_topology == ISP_CFG_F) | |
5792 | fcport->flags |= FCF_FABRIC_DEVICE; | |
5793 | ||
5794 | list_add_tail(&fcport->list, &vha->vp_fcports); | |
5795 | if (!IS_SW_RESV_ADDR(fcport->d_id)) | |
5796 | vha->fcport_count++; | |
5797 | fcport->login_gen++; | |
5798 | fcport->disc_state = DSC_LOGIN_COMPLETE; | |
5799 | fcport->login_succ = 1; | |
5800 | newfcport = 1; | |
5801 | } | |
5802 | ||
5803 | fcport->deleted = 0; | |
5804 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
5805 | ||
5806 | switch (vha->host->active_mode) { | |
5807 | case MODE_INITIATOR: | |
5808 | case MODE_DUAL: | |
5809 | if (newfcport) { | |
5810 | if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) { | |
83548fe2 | 5811 | ql_dbg(ql_dbg_disc, vha, 0x20fe, |
726b8548 QT |
5812 | "%s %d %8phC post upd_fcport fcp_cnt %d\n", |
5813 | __func__, __LINE__, fcport->port_name, vha->fcport_count); | |
5814 | qla24xx_post_upd_fcport_work(vha, fcport); | |
5815 | } else { | |
83548fe2 | 5816 | ql_dbg(ql_dbg_disc, vha, 0x20ff, |
726b8548 QT |
5817 | "%s %d %8phC post gpsc fcp_cnt %d\n", |
5818 | __func__, __LINE__, fcport->port_name, vha->fcport_count); | |
5819 | qla24xx_post_gpsc_work(vha, fcport); | |
5820 | } | |
5821 | } | |
5822 | break; | |
5823 | ||
5824 | case MODE_TARGET: | |
5825 | default: | |
5826 | break; | |
5827 | } | |
5828 | if (del) | |
5829 | qla2x00_free_fcport(del); | |
5830 | ||
2d70c103 NB |
5831 | return fcport; |
5832 | } | |
5833 | ||
5834 | /* Must be called under tgt_mutex */ | |
5d964837 | 5835 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha, |
2d70c103 NB |
5836 | uint8_t *s_id) |
5837 | { | |
5d964837 | 5838 | struct fc_port *sess = NULL; |
2d70c103 NB |
5839 | fc_port_t *fcport = NULL; |
5840 | int rc, global_resets; | |
5841 | uint16_t loop_id = 0; | |
5842 | ||
726b8548 QT |
5843 | if ((s_id[0] == 0xFF) && (s_id[1] == 0xFC)) { |
5844 | /* | |
5845 | * This is Domain Controller, so it should be | |
5846 | * OK to drop SCSI commands from it. | |
5847 | */ | |
5848 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042, | |
5849 | "Unable to find initiator with S_ID %x:%x:%x", | |
5850 | s_id[0], s_id[1], s_id[2]); | |
5851 | return NULL; | |
5852 | } | |
5853 | ||
71cdc079 AP |
5854 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
5855 | ||
2d70c103 | 5856 | retry: |
0e8cd71c SK |
5857 | global_resets = |
5858 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); | |
2d70c103 NB |
5859 | |
5860 | rc = qla24xx_get_loop_id(vha, s_id, &loop_id); | |
5861 | if (rc != 0) { | |
71cdc079 AP |
5862 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
5863 | ||
726b8548 QT |
5864 | ql_log(ql_log_info, vha, 0xf071, |
5865 | "qla_target(%d): Unable to find " | |
5866 | "initiator with S_ID %x:%x:%x", | |
5867 | vha->vp_idx, s_id[0], s_id[1], | |
5868 | s_id[2]); | |
71cdc079 AP |
5869 | |
5870 | if (rc == -ENOENT) { | |
5871 | qlt_port_logo_t logo; | |
5872 | sid_to_portid(s_id, &logo.id); | |
5873 | logo.cmd_count = 1; | |
5874 | qlt_send_first_logo(vha, &logo); | |
5875 | } | |
5876 | ||
2d70c103 NB |
5877 | return NULL; |
5878 | } | |
5879 | ||
5880 | fcport = qlt_get_port_database(vha, loop_id); | |
71cdc079 AP |
5881 | if (!fcport) { |
5882 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
2d70c103 | 5883 | return NULL; |
71cdc079 | 5884 | } |
2d70c103 NB |
5885 | |
5886 | if (global_resets != | |
0e8cd71c | 5887 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) { |
2d70c103 NB |
5888 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043, |
5889 | "qla_target(%d): global reset during session discovery " | |
5890 | "(counter was %d, new %d), retrying", vha->vp_idx, | |
5891 | global_resets, | |
0e8cd71c SK |
5892 | atomic_read(&vha->vha_tgt. |
5893 | qla_tgt->tgt_global_resets_count)); | |
2d70c103 NB |
5894 | goto retry; |
5895 | } | |
5896 | ||
5897 | sess = qlt_create_sess(vha, fcport, true); | |
5898 | ||
71cdc079 AP |
5899 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
5900 | ||
2d70c103 NB |
5901 | return sess; |
5902 | } | |
5903 | ||
5904 | static void qlt_abort_work(struct qla_tgt *tgt, | |
5905 | struct qla_tgt_sess_work_param *prm) | |
5906 | { | |
5907 | struct scsi_qla_host *vha = tgt->vha; | |
5908 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5909 | struct fc_port *sess = NULL; |
7560151b | 5910 | unsigned long flags = 0, flags2 = 0; |
2d70c103 NB |
5911 | uint32_t be_s_id; |
5912 | uint8_t s_id[3]; | |
5913 | int rc; | |
5914 | ||
7560151b | 5915 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 NB |
5916 | |
5917 | if (tgt->tgt_stop) | |
7560151b | 5918 | goto out_term2; |
2d70c103 NB |
5919 | |
5920 | s_id[0] = prm->abts.fcp_hdr_le.s_id[2]; | |
5921 | s_id[1] = prm->abts.fcp_hdr_le.s_id[1]; | |
5922 | s_id[2] = prm->abts.fcp_hdr_le.s_id[0]; | |
5923 | ||
5924 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, | |
5925 | (unsigned char *)&be_s_id); | |
5926 | if (!sess) { | |
7560151b | 5927 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); |
2d70c103 | 5928 | |
2d70c103 NB |
5929 | sess = qlt_make_local_sess(vha, s_id); |
5930 | /* sess has got an extra creation ref */ | |
2d70c103 | 5931 | |
7560151b | 5932 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 | 5933 | if (!sess) |
7560151b | 5934 | goto out_term2; |
2d70c103 | 5935 | } else { |
726b8548 | 5936 | if (sess->deleted) { |
e52a8b45 | 5937 | sess = NULL; |
7560151b | 5938 | goto out_term2; |
e52a8b45 AP |
5939 | } |
5940 | ||
726b8548 | 5941 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 5942 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c, |
726b8548 QT |
5943 | "%s: kref_get fail %8phC \n", |
5944 | __func__, sess->port_name); | |
5945 | sess = NULL; | |
5946 | goto out_term2; | |
5947 | } | |
2d70c103 NB |
5948 | } |
5949 | ||
2d70c103 | 5950 | rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess); |
f159b3c7 QT |
5951 | ha->tgt.tgt_ops->put_sess(sess); |
5952 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
5953 | ||
2d70c103 NB |
5954 | if (rc != 0) |
5955 | goto out_term; | |
2d70c103 NB |
5956 | return; |
5957 | ||
7560151b | 5958 | out_term2: |
f159b3c7 QT |
5959 | if (sess) |
5960 | ha->tgt.tgt_ops->put_sess(sess); | |
5961 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
7560151b | 5962 | |
2d70c103 | 5963 | out_term: |
f159b3c7 | 5964 | spin_lock_irqsave(&ha->hardware_lock, flags); |
82de802a QT |
5965 | qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts, |
5966 | FCP_TMF_REJECTED, false); | |
7560151b | 5967 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2d70c103 NB |
5968 | } |
5969 | ||
5970 | static void qlt_tmr_work(struct qla_tgt *tgt, | |
5971 | struct qla_tgt_sess_work_param *prm) | |
5972 | { | |
5973 | struct atio_from_isp *a = &prm->tm_iocb2; | |
5974 | struct scsi_qla_host *vha = tgt->vha; | |
5975 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5976 | struct fc_port *sess = NULL; |
2d70c103 NB |
5977 | unsigned long flags; |
5978 | uint8_t *s_id = NULL; /* to hide compiler warnings */ | |
5979 | int rc; | |
f775bd14 | 5980 | u64 unpacked_lun; |
52c82823 | 5981 | int fn; |
2d70c103 NB |
5982 | void *iocb; |
5983 | ||
7560151b | 5984 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
5985 | |
5986 | if (tgt->tgt_stop) | |
f159b3c7 | 5987 | goto out_term2; |
2d70c103 NB |
5988 | |
5989 | s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id; | |
5990 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); | |
5991 | if (!sess) { | |
7560151b | 5992 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 5993 | |
2d70c103 NB |
5994 | sess = qlt_make_local_sess(vha, s_id); |
5995 | /* sess has got an extra creation ref */ | |
2d70c103 | 5996 | |
7560151b | 5997 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 5998 | if (!sess) |
f159b3c7 | 5999 | goto out_term2; |
2d70c103 | 6000 | } else { |
726b8548 | 6001 | if (sess->deleted) { |
e52a8b45 | 6002 | sess = NULL; |
f159b3c7 | 6003 | goto out_term2; |
e52a8b45 AP |
6004 | } |
6005 | ||
726b8548 | 6006 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 6007 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020, |
726b8548 QT |
6008 | "%s: kref_get fail %8phC\n", |
6009 | __func__, sess->port_name); | |
6010 | sess = NULL; | |
f159b3c7 | 6011 | goto out_term2; |
726b8548 | 6012 | } |
2d70c103 NB |
6013 | } |
6014 | ||
6015 | iocb = a; | |
2d70c103 | 6016 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
f775bd14 QT |
6017 | unpacked_lun = |
6018 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
2d70c103 NB |
6019 | |
6020 | rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); | |
5d964837 | 6021 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 6022 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
f159b3c7 QT |
6023 | |
6024 | if (rc != 0) | |
6025 | goto out_term; | |
2d70c103 NB |
6026 | return; |
6027 | ||
f159b3c7 QT |
6028 | out_term2: |
6029 | if (sess) | |
6030 | ha->tgt.tgt_ops->put_sess(sess); | |
6031 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
2d70c103 | 6032 | out_term: |
82de802a | 6033 | qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0); |
2d70c103 NB |
6034 | } |
6035 | ||
6036 | static void qlt_sess_work_fn(struct work_struct *work) | |
6037 | { | |
6038 | struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work); | |
6039 | struct scsi_qla_host *vha = tgt->vha; | |
6040 | unsigned long flags; | |
6041 | ||
6042 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt); | |
6043 | ||
6044 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
6045 | while (!list_empty(&tgt->sess_works_list)) { | |
6046 | struct qla_tgt_sess_work_param *prm = list_entry( | |
6047 | tgt->sess_works_list.next, typeof(*prm), | |
6048 | sess_works_list_entry); | |
6049 | ||
6050 | /* | |
6051 | * This work can be scheduled on several CPUs at time, so we | |
6052 | * must delete the entry to eliminate double processing | |
6053 | */ | |
6054 | list_del(&prm->sess_works_list_entry); | |
6055 | ||
6056 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
6057 | ||
6058 | switch (prm->type) { | |
6059 | case QLA_TGT_SESS_WORK_ABORT: | |
6060 | qlt_abort_work(tgt, prm); | |
6061 | break; | |
6062 | case QLA_TGT_SESS_WORK_TM: | |
6063 | qlt_tmr_work(tgt, prm); | |
6064 | break; | |
6065 | default: | |
6066 | BUG_ON(1); | |
6067 | break; | |
6068 | } | |
6069 | ||
6070 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
6071 | ||
6072 | kfree(prm); | |
6073 | } | |
6074 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
6075 | } | |
6076 | ||
6077 | /* Must be called under tgt_host_action_mutex */ | |
6078 | int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) | |
6079 | { | |
6080 | struct qla_tgt *tgt; | |
e326d22a QT |
6081 | int rc, i; |
6082 | struct qla_qpair_hint *h; | |
2d70c103 NB |
6083 | |
6084 | if (!QLA_TGT_MODE_ENABLED()) | |
6085 | return 0; | |
6086 | ||
33c36c0a AE |
6087 | if (!IS_TGT_MODE_CAPABLE(ha)) { |
6088 | ql_log(ql_log_warn, base_vha, 0xe070, | |
6089 | "This adapter does not support target mode.\n"); | |
6090 | return 0; | |
6091 | } | |
6092 | ||
2d70c103 | 6093 | ql_dbg(ql_dbg_tgt, base_vha, 0xe03b, |
0e8cd71c | 6094 | "Registering target for host %ld(%p).\n", base_vha->host_no, ha); |
2d70c103 | 6095 | |
0e8cd71c | 6096 | BUG_ON(base_vha->vha_tgt.qla_tgt != NULL); |
2d70c103 NB |
6097 | |
6098 | tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL); | |
6099 | if (!tgt) { | |
6100 | ql_dbg(ql_dbg_tgt, base_vha, 0xe066, | |
6101 | "Unable to allocate struct qla_tgt\n"); | |
6102 | return -ENOMEM; | |
6103 | } | |
6104 | ||
e326d22a QT |
6105 | tgt->qphints = kzalloc((ha->max_qpairs + 1) * |
6106 | sizeof(struct qla_qpair_hint), GFP_KERNEL); | |
6107 | if (!tgt->qphints) { | |
6108 | kfree(tgt); | |
6109 | ql_log(ql_log_warn, base_vha, 0x0197, | |
6110 | "Unable to allocate qpair hints.\n"); | |
6111 | return -ENOMEM; | |
6112 | } | |
6113 | ||
2d70c103 NB |
6114 | if (!(base_vha->host->hostt->supported_mode & MODE_TARGET)) |
6115 | base_vha->host->hostt->supported_mode |= MODE_TARGET; | |
6116 | ||
e326d22a QT |
6117 | rc = btree_init64(&tgt->lun_qpair_map); |
6118 | if (rc) { | |
6119 | kfree(tgt->qphints); | |
6120 | kfree(tgt); | |
6121 | ql_log(ql_log_info, base_vha, 0x0198, | |
6122 | "Unable to initialize lun_qpair_map btree\n"); | |
6123 | return -EIO; | |
6124 | } | |
6125 | h = &tgt->qphints[0]; | |
6126 | h->qpair = ha->base_qpair; | |
6127 | INIT_LIST_HEAD(&h->hint_elem); | |
6128 | h->cpuid = ha->base_qpair->cpuid; | |
6129 | list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list); | |
6130 | ||
6131 | for (i = 0; i < ha->max_qpairs; i++) { | |
6132 | unsigned long flags; | |
6133 | ||
6134 | struct qla_qpair *qpair = ha->queue_pair_map[i]; | |
6135 | h = &tgt->qphints[i + 1]; | |
6136 | INIT_LIST_HEAD(&h->hint_elem); | |
6137 | if (qpair) { | |
6138 | h->qpair = qpair; | |
6139 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); | |
6140 | list_add_tail(&h->hint_elem, &qpair->hints_list); | |
6141 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); | |
6142 | h->cpuid = qpair->cpuid; | |
6143 | } | |
6144 | } | |
6145 | ||
2d70c103 NB |
6146 | tgt->ha = ha; |
6147 | tgt->vha = base_vha; | |
6148 | init_waitqueue_head(&tgt->waitQ); | |
2d70c103 | 6149 | INIT_LIST_HEAD(&tgt->del_sess_list); |
2d70c103 NB |
6150 | spin_lock_init(&tgt->sess_work_lock); |
6151 | INIT_WORK(&tgt->sess_work, qlt_sess_work_fn); | |
6152 | INIT_LIST_HEAD(&tgt->sess_works_list); | |
2d70c103 NB |
6153 | atomic_set(&tgt->tgt_global_resets_count, 0); |
6154 | ||
0e8cd71c | 6155 | base_vha->vha_tgt.qla_tgt = tgt; |
2d70c103 NB |
6156 | |
6157 | ql_dbg(ql_dbg_tgt, base_vha, 0xe067, | |
6158 | "qla_target(%d): using 64 Bit PCI addressing", | |
6159 | base_vha->vp_idx); | |
2d70c103 NB |
6160 | /* 3 is reserved */ |
6161 | tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3); | |
2d70c103 NB |
6162 | |
6163 | mutex_lock(&qla_tgt_mutex); | |
6164 | list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist); | |
6165 | mutex_unlock(&qla_tgt_mutex); | |
6166 | ||
f1443eeb QT |
6167 | if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target) |
6168 | ha->tgt.tgt_ops->add_target(base_vha); | |
6169 | ||
2d70c103 NB |
6170 | return 0; |
6171 | } | |
6172 | ||
6173 | /* Must be called under tgt_host_action_mutex */ | |
6174 | int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha) | |
6175 | { | |
0e8cd71c | 6176 | if (!vha->vha_tgt.qla_tgt) |
2d70c103 NB |
6177 | return 0; |
6178 | ||
ddb95145 NB |
6179 | if (vha->fc_vport) { |
6180 | qlt_release(vha->vha_tgt.qla_tgt); | |
6181 | return 0; | |
6182 | } | |
33e79977 QT |
6183 | |
6184 | /* free left over qfull cmds */ | |
6185 | qlt_init_term_exchange(vha); | |
6186 | ||
2d70c103 NB |
6187 | ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)", |
6188 | vha->host_no, ha); | |
0e8cd71c | 6189 | qlt_release(vha->vha_tgt.qla_tgt); |
2d70c103 NB |
6190 | |
6191 | return 0; | |
6192 | } | |
6193 | ||
482c9dc7 QT |
6194 | void qlt_remove_target_resources(struct qla_hw_data *ha) |
6195 | { | |
6196 | struct scsi_qla_host *node; | |
6197 | u32 key = 0; | |
6198 | ||
6199 | btree_for_each_safe32(&ha->tgt.host_map, key, node) | |
6200 | btree_remove32(&ha->tgt.host_map, key); | |
6201 | ||
6202 | btree_destroy32(&ha->tgt.host_map); | |
6203 | } | |
6204 | ||
2d70c103 NB |
6205 | static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn, |
6206 | unsigned char *b) | |
6207 | { | |
6208 | int i; | |
6209 | ||
6210 | pr_debug("qla2xxx HW vha->node_name: "); | |
6211 | for (i = 0; i < WWN_SIZE; i++) | |
6212 | pr_debug("%02x ", vha->node_name[i]); | |
6213 | pr_debug("\n"); | |
6214 | pr_debug("qla2xxx HW vha->port_name: "); | |
6215 | for (i = 0; i < WWN_SIZE; i++) | |
6216 | pr_debug("%02x ", vha->port_name[i]); | |
6217 | pr_debug("\n"); | |
6218 | ||
6219 | pr_debug("qla2xxx passed configfs WWPN: "); | |
6220 | put_unaligned_be64(wwpn, b); | |
6221 | for (i = 0; i < WWN_SIZE; i++) | |
6222 | pr_debug("%02x ", b[i]); | |
6223 | pr_debug("\n"); | |
6224 | } | |
6225 | ||
6226 | /** | |
6227 | * qla_tgt_lport_register - register lport with external module | |
6228 | * | |
6229 | * @qla_tgt_ops: Pointer for tcm_qla2xxx qla_tgt_ops | |
6230 | * @wwpn: Passwd FC target WWPN | |
6231 | * @callback: lport initialization callback for tcm_qla2xxx code | |
6232 | * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data | |
6233 | */ | |
49a47f2c NB |
6234 | int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn, |
6235 | u64 npiv_wwpn, u64 npiv_wwnn, | |
6236 | int (*callback)(struct scsi_qla_host *, void *, u64, u64)) | |
2d70c103 NB |
6237 | { |
6238 | struct qla_tgt *tgt; | |
6239 | struct scsi_qla_host *vha; | |
6240 | struct qla_hw_data *ha; | |
6241 | struct Scsi_Host *host; | |
6242 | unsigned long flags; | |
6243 | int rc; | |
6244 | u8 b[WWN_SIZE]; | |
6245 | ||
6246 | mutex_lock(&qla_tgt_mutex); | |
6247 | list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) { | |
6248 | vha = tgt->vha; | |
6249 | ha = vha->hw; | |
6250 | ||
6251 | host = vha->host; | |
6252 | if (!host) | |
6253 | continue; | |
6254 | ||
2d70c103 NB |
6255 | if (!(host->hostt->supported_mode & MODE_TARGET)) |
6256 | continue; | |
6257 | ||
6258 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
49a47f2c | 6259 | if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) { |
2d70c103 NB |
6260 | pr_debug("MODE_TARGET already active on qla2xxx(%d)\n", |
6261 | host->host_no); | |
6262 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6263 | continue; | |
6264 | } | |
ddb95145 NB |
6265 | if (tgt->tgt_stop) { |
6266 | pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n", | |
6267 | host->host_no); | |
6268 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6269 | continue; | |
6270 | } | |
2d70c103 NB |
6271 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
6272 | ||
6273 | if (!scsi_host_get(host)) { | |
6274 | ql_dbg(ql_dbg_tgt, vha, 0xe068, | |
6275 | "Unable to scsi_host_get() for" | |
6276 | " qla2xxx scsi_host\n"); | |
6277 | continue; | |
6278 | } | |
49a47f2c | 6279 | qlt_lport_dump(vha, phys_wwpn, b); |
2d70c103 NB |
6280 | |
6281 | if (memcmp(vha->port_name, b, WWN_SIZE)) { | |
6282 | scsi_host_put(host); | |
6283 | continue; | |
6284 | } | |
49a47f2c NB |
6285 | rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn); |
6286 | if (rc != 0) | |
6287 | scsi_host_put(host); | |
6288 | ||
ddb95145 | 6289 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 NB |
6290 | return rc; |
6291 | } | |
6292 | mutex_unlock(&qla_tgt_mutex); | |
6293 | ||
6294 | return -ENODEV; | |
6295 | } | |
6296 | EXPORT_SYMBOL(qlt_lport_register); | |
6297 | ||
6298 | /** | |
6299 | * qla_tgt_lport_deregister - Degister lport | |
6300 | * | |
6301 | * @vha: Registered scsi_qla_host pointer | |
6302 | */ | |
6303 | void qlt_lport_deregister(struct scsi_qla_host *vha) | |
6304 | { | |
6305 | struct qla_hw_data *ha = vha->hw; | |
6306 | struct Scsi_Host *sh = vha->host; | |
6307 | /* | |
6308 | * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data | |
6309 | */ | |
0e8cd71c | 6310 | vha->vha_tgt.target_lport_ptr = NULL; |
2d70c103 NB |
6311 | ha->tgt.tgt_ops = NULL; |
6312 | /* | |
6313 | * Release the Scsi_Host reference for the underlying qla2xxx host | |
6314 | */ | |
6315 | scsi_host_put(sh); | |
6316 | } | |
6317 | EXPORT_SYMBOL(qlt_lport_deregister); | |
6318 | ||
6319 | /* Must be called under HW lock */ | |
55a9066f | 6320 | static void qlt_set_mode(struct scsi_qla_host *vha) |
2d70c103 | 6321 | { |
2d70c103 NB |
6322 | switch (ql2x_ini_mode) { |
6323 | case QLA2XXX_INI_MODE_DISABLED: | |
6324 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6325 | vha->host->active_mode = MODE_TARGET; | |
6326 | break; | |
6327 | case QLA2XXX_INI_MODE_ENABLED: | |
ead03855 QT |
6328 | vha->host->active_mode = MODE_UNKNOWN; |
6329 | break; | |
6330 | case QLA2XXX_INI_MODE_DUAL: | |
6331 | vha->host->active_mode = MODE_DUAL; | |
2d70c103 NB |
6332 | break; |
6333 | default: | |
6334 | break; | |
6335 | } | |
2d70c103 NB |
6336 | } |
6337 | ||
6338 | /* Must be called under HW lock */ | |
55a9066f | 6339 | static void qlt_clear_mode(struct scsi_qla_host *vha) |
2d70c103 | 6340 | { |
2d70c103 NB |
6341 | switch (ql2x_ini_mode) { |
6342 | case QLA2XXX_INI_MODE_DISABLED: | |
6343 | vha->host->active_mode = MODE_UNKNOWN; | |
6344 | break; | |
6345 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6346 | vha->host->active_mode = MODE_INITIATOR; | |
6347 | break; | |
6348 | case QLA2XXX_INI_MODE_ENABLED: | |
ead03855 QT |
6349 | case QLA2XXX_INI_MODE_DUAL: |
6350 | vha->host->active_mode = MODE_INITIATOR; | |
2d70c103 NB |
6351 | break; |
6352 | default: | |
6353 | break; | |
6354 | } | |
2d70c103 NB |
6355 | } |
6356 | ||
6357 | /* | |
6358 | * qla_tgt_enable_vha - NO LOCK HELD | |
6359 | * | |
6360 | * host_reset, bring up w/ Target Mode Enabled | |
6361 | */ | |
6362 | void | |
6363 | qlt_enable_vha(struct scsi_qla_host *vha) | |
6364 | { | |
6365 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6366 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 6367 | unsigned long flags; |
0e8cd71c | 6368 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
2d70c103 NB |
6369 | |
6370 | if (!tgt) { | |
6371 | ql_dbg(ql_dbg_tgt, vha, 0xe069, | |
6372 | "Unable to locate qla_tgt pointer from" | |
6373 | " struct qla_hw_data\n"); | |
6374 | dump_stack(); | |
6375 | return; | |
6376 | } | |
6377 | ||
6378 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6379 | tgt->tgt_stopped = 0; | |
6380 | qlt_set_mode(vha); | |
6381 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6382 | ||
0e8cd71c SK |
6383 | if (vha->vp_idx) { |
6384 | qla24xx_disable_vp(vha); | |
6385 | qla24xx_enable_vp(vha); | |
6386 | } else { | |
6387 | set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); | |
6388 | qla2xxx_wake_dpc(base_vha); | |
6389 | qla2x00_wait_for_hba_online(base_vha); | |
6390 | } | |
2d70c103 NB |
6391 | } |
6392 | EXPORT_SYMBOL(qlt_enable_vha); | |
6393 | ||
6394 | /* | |
6395 | * qla_tgt_disable_vha - NO LOCK HELD | |
6396 | * | |
6397 | * Disable Target Mode and reset the adapter | |
6398 | */ | |
55a9066f | 6399 | static void qlt_disable_vha(struct scsi_qla_host *vha) |
2d70c103 NB |
6400 | { |
6401 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6402 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
6403 | unsigned long flags; |
6404 | ||
6405 | if (!tgt) { | |
6406 | ql_dbg(ql_dbg_tgt, vha, 0xe06a, | |
6407 | "Unable to locate qla_tgt pointer from" | |
6408 | " struct qla_hw_data\n"); | |
6409 | dump_stack(); | |
6410 | return; | |
6411 | } | |
6412 | ||
6413 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6414 | qlt_clear_mode(vha); | |
6415 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6416 | ||
6417 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
6418 | qla2xxx_wake_dpc(vha); | |
6419 | qla2x00_wait_for_hba_online(vha); | |
6420 | } | |
6421 | ||
6422 | /* | |
6423 | * Called from qla_init.c:qla24xx_vport_create() contex to setup | |
6424 | * the target mode specific struct scsi_qla_host and struct qla_hw_data | |
6425 | * members. | |
6426 | */ | |
6427 | void | |
6428 | qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha) | |
6429 | { | |
0e8cd71c SK |
6430 | vha->vha_tgt.qla_tgt = NULL; |
6431 | ||
6432 | mutex_init(&vha->vha_tgt.tgt_mutex); | |
6433 | mutex_init(&vha->vha_tgt.tgt_host_action_mutex); | |
2d70c103 NB |
6434 | |
6435 | qlt_clear_mode(vha); | |
6436 | ||
6437 | /* | |
6438 | * NOTE: Currently the value is kept the same for <24xx and | |
6439 | * >=24xx ISPs. If it is necessary to change it, | |
6440 | * the check should be added for specific ISPs, | |
6441 | * assigning the value appropriately. | |
6442 | */ | |
6443 | ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX; | |
0e8cd71c SK |
6444 | |
6445 | qlt_add_target(ha, vha); | |
2d70c103 NB |
6446 | } |
6447 | ||
6448 | void | |
6449 | qlt_rff_id(struct scsi_qla_host *vha, struct ct_sns_req *ct_req) | |
6450 | { | |
6451 | /* | |
6452 | * FC-4 Feature bit 0 indicates target functionality to the name server. | |
6453 | */ | |
6454 | if (qla_tgt_mode_enabled(vha)) { | |
726b8548 | 6455 | ct_req->req.rff_id.fc4_feature = BIT_0; |
2d70c103 NB |
6456 | } else if (qla_ini_mode_enabled(vha)) { |
6457 | ct_req->req.rff_id.fc4_feature = BIT_1; | |
726b8548 QT |
6458 | } else if (qla_dual_mode_enabled(vha)) |
6459 | ct_req->req.rff_id.fc4_feature = BIT_0 | BIT_1; | |
2d70c103 NB |
6460 | } |
6461 | ||
6462 | /* | |
6463 | * qlt_init_atio_q_entries() - Initializes ATIO queue entries. | |
6464 | * @ha: HA context | |
6465 | * | |
6466 | * Beginning of ATIO ring has initialization control block already built | |
6467 | * by nvram config routine. | |
6468 | * | |
6469 | * Returns 0 on success. | |
6470 | */ | |
6471 | void | |
6472 | qlt_init_atio_q_entries(struct scsi_qla_host *vha) | |
6473 | { | |
6474 | struct qla_hw_data *ha = vha->hw; | |
6475 | uint16_t cnt; | |
6476 | struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring; | |
6477 | ||
ead03855 | 6478 | if (qla_ini_mode_enabled(vha)) |
2d70c103 NB |
6479 | return; |
6480 | ||
6481 | for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) { | |
6482 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6483 | pkt++; | |
6484 | } | |
6485 | ||
6486 | } | |
6487 | ||
6488 | /* | |
6489 | * qlt_24xx_process_atio_queue() - Process ATIO queue entries. | |
6490 | * @ha: SCSI driver HA context | |
6491 | */ | |
6492 | void | |
2f424b9b | 6493 | qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked) |
2d70c103 NB |
6494 | { |
6495 | struct qla_hw_data *ha = vha->hw; | |
2d70c103 NB |
6496 | struct atio_from_isp *pkt; |
6497 | int cnt, i; | |
6498 | ||
ec7193e2 | 6499 | if (!ha->flags.fw_started) |
2d70c103 NB |
6500 | return; |
6501 | ||
5f35509d QT |
6502 | while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) || |
6503 | fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) { | |
2d70c103 NB |
6504 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; |
6505 | cnt = pkt->u.raw.entry_count; | |
6506 | ||
5f35509d QT |
6507 | if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) { |
6508 | /* | |
6509 | * This packet is corrupted. The header + payload | |
6510 | * can not be trusted. There is no point in passing | |
6511 | * it further up. | |
6512 | */ | |
83548fe2 | 6513 | ql_log(ql_log_warn, vha, 0xd03c, |
5f35509d QT |
6514 | "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n", |
6515 | pkt->u.isp24.fcp_hdr.s_id, | |
6516 | be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id), | |
6517 | le32_to_cpu(pkt->u.isp24.exchange_addr), pkt); | |
6518 | ||
6519 | adjust_corrupted_atio(pkt); | |
82de802a QT |
6520 | qlt_send_term_exchange(ha->base_qpair, NULL, pkt, |
6521 | ha_locked, 0); | |
5f35509d QT |
6522 | } else { |
6523 | qlt_24xx_atio_pkt_all_vps(vha, | |
6524 | (struct atio_from_isp *)pkt, ha_locked); | |
6525 | } | |
2d70c103 NB |
6526 | |
6527 | for (i = 0; i < cnt; i++) { | |
6528 | ha->tgt.atio_ring_index++; | |
6529 | if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) { | |
6530 | ha->tgt.atio_ring_index = 0; | |
6531 | ha->tgt.atio_ring_ptr = ha->tgt.atio_ring; | |
6532 | } else | |
6533 | ha->tgt.atio_ring_ptr++; | |
6534 | ||
6535 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6536 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; | |
6537 | } | |
6538 | wmb(); | |
6539 | } | |
6540 | ||
6541 | /* Adjust ring index */ | |
aa230bc5 | 6542 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index); |
2d70c103 NB |
6543 | } |
6544 | ||
6545 | void | |
aa230bc5 | 6546 | qlt_24xx_config_rings(struct scsi_qla_host *vha) |
2d70c103 NB |
6547 | { |
6548 | struct qla_hw_data *ha = vha->hw; | |
aa230bc5 AE |
6549 | if (!QLA_TGT_MODE_ENABLED()) |
6550 | return; | |
2d70c103 | 6551 | |
aa230bc5 AE |
6552 | WRT_REG_DWORD(ISP_ATIO_Q_IN(vha), 0); |
6553 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0); | |
6554 | RD_REG_DWORD(ISP_ATIO_Q_OUT(vha)); | |
6555 | ||
6556 | if (IS_ATIO_MSIX_CAPABLE(ha)) { | |
6557 | struct qla_msix_entry *msix = &ha->msix_entries[2]; | |
6558 | struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb; | |
6559 | ||
6560 | icb->msix_atio = cpu_to_le16(msix->entry); | |
6561 | ql_dbg(ql_dbg_init, vha, 0xf072, | |
6562 | "Registering ICB vector 0x%x for atio que.\n", | |
6563 | msix->entry); | |
2d70c103 NB |
6564 | } |
6565 | } | |
6566 | ||
6567 | void | |
6568 | qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) | |
6569 | { | |
6570 | struct qla_hw_data *ha = vha->hw; | |
99e1b683 QT |
6571 | |
6572 | if (!QLA_TGT_MODE_ENABLED()) | |
6573 | return; | |
2d70c103 | 6574 | |
ead03855 | 6575 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
2d70c103 NB |
6576 | if (!ha->tgt.saved_set) { |
6577 | /* We save only once */ | |
6578 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
6579 | ha->tgt.saved_firmware_options_1 = | |
6580 | nv->firmware_options_1; | |
6581 | ha->tgt.saved_firmware_options_2 = | |
6582 | nv->firmware_options_2; | |
6583 | ha->tgt.saved_firmware_options_3 = | |
6584 | nv->firmware_options_3; | |
6585 | ha->tgt.saved_set = 1; | |
6586 | } | |
6587 | ||
99e1b683 | 6588 | if (qla_tgt_mode_enabled(vha)) |
ead03855 | 6589 | nv->exchange_count = cpu_to_le16(0xFFFF); |
99e1b683 QT |
6590 | else /* dual */ |
6591 | nv->exchange_count = cpu_to_le16(ql2xexchoffld); | |
2d70c103 NB |
6592 | |
6593 | /* Enable target mode */ | |
ad950360 | 6594 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
2d70c103 NB |
6595 | |
6596 | /* Disable ini mode, if requested */ | |
726b8548 | 6597 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 6598 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
2d70c103 NB |
6599 | |
6600 | /* Disable Full Login after LIP */ | |
ad950360 | 6601 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
2d70c103 | 6602 | /* Enable initial LIP */ |
ad950360 | 6603 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
d154f350 AE |
6604 | if (ql2xtgt_tape_enable) |
6605 | /* Enable FC Tape support */ | |
6606 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
6607 | else | |
6608 | /* Disable FC Tape support */ | |
6609 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
6610 | ||
2d70c103 | 6611 | /* Disable Full Login after LIP */ |
ad950360 | 6612 | nv->host_p &= cpu_to_le32(~BIT_10); |
c0f64627 HM |
6613 | |
6614 | /* | |
6615 | * clear BIT 15 explicitly as we have seen at least | |
6616 | * a couple of instances where this was set and this | |
6617 | * was causing the firmware to not be initialized. | |
6618 | */ | |
6619 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
2d70c103 | 6620 | /* Enable target PRLI control */ |
ad950360 | 6621 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
2d70c103 NB |
6622 | } else { |
6623 | if (ha->tgt.saved_set) { | |
6624 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
6625 | nv->firmware_options_1 = | |
6626 | ha->tgt.saved_firmware_options_1; | |
6627 | nv->firmware_options_2 = | |
6628 | ha->tgt.saved_firmware_options_2; | |
6629 | nv->firmware_options_3 = | |
6630 | ha->tgt.saved_firmware_options_3; | |
6631 | } | |
6632 | return; | |
6633 | } | |
6634 | ||
7c3f8fd1 | 6635 | if (ha->base_qpair->enable_class_2) { |
2d70c103 NB |
6636 | if (vha->flags.init_done) |
6637 | fc_host_supported_classes(vha->host) = | |
6638 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
6639 | ||
ad950360 | 6640 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
2d70c103 NB |
6641 | } else { |
6642 | if (vha->flags.init_done) | |
6643 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
6644 | ||
ad950360 | 6645 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
2d70c103 NB |
6646 | } |
6647 | } | |
6648 | ||
6649 | void | |
6650 | qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
6651 | struct init_cb_24xx *icb) | |
6652 | { | |
6653 | struct qla_hw_data *ha = vha->hw; | |
6654 | ||
481ce733 QT |
6655 | if (!QLA_TGT_MODE_ENABLED()) |
6656 | return; | |
6657 | ||
2d70c103 NB |
6658 | if (ha->tgt.node_name_set) { |
6659 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 6660 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
2d70c103 | 6661 | } |
481ce733 QT |
6662 | |
6663 | /* disable ZIO at start time. */ | |
6664 | if (!vha->flags.init_done) { | |
6665 | uint32_t tmp; | |
6666 | tmp = le32_to_cpu(icb->firmware_options_2); | |
6667 | tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
6668 | icb->firmware_options_2 = cpu_to_le32(tmp); | |
6669 | } | |
2d70c103 NB |
6670 | } |
6671 | ||
aa230bc5 AE |
6672 | void |
6673 | qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) | |
6674 | { | |
6675 | struct qla_hw_data *ha = vha->hw; | |
6676 | ||
6677 | if (!QLA_TGT_MODE_ENABLED()) | |
6678 | return; | |
6679 | ||
ead03855 | 6680 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
aa230bc5 AE |
6681 | if (!ha->tgt.saved_set) { |
6682 | /* We save only once */ | |
6683 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
6684 | ha->tgt.saved_firmware_options_1 = | |
6685 | nv->firmware_options_1; | |
6686 | ha->tgt.saved_firmware_options_2 = | |
6687 | nv->firmware_options_2; | |
6688 | ha->tgt.saved_firmware_options_3 = | |
6689 | nv->firmware_options_3; | |
6690 | ha->tgt.saved_set = 1; | |
6691 | } | |
6692 | ||
99e1b683 | 6693 | if (qla_tgt_mode_enabled(vha)) |
ead03855 | 6694 | nv->exchange_count = cpu_to_le16(0xFFFF); |
99e1b683 QT |
6695 | else /* dual */ |
6696 | nv->exchange_count = cpu_to_le16(ql2xexchoffld); | |
aa230bc5 AE |
6697 | |
6698 | /* Enable target mode */ | |
ad950360 | 6699 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
aa230bc5 AE |
6700 | |
6701 | /* Disable ini mode, if requested */ | |
726b8548 | 6702 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 6703 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
aa230bc5 | 6704 | /* Disable Full Login after LIP */ |
ad950360 | 6705 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
aa230bc5 | 6706 | /* Enable initial LIP */ |
ad950360 | 6707 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
c0f64627 HM |
6708 | /* |
6709 | * clear BIT 15 explicitly as we have seen at | |
6710 | * least a couple of instances where this was set | |
6711 | * and this was causing the firmware to not be | |
6712 | * initialized. | |
6713 | */ | |
6714 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
d154f350 AE |
6715 | if (ql2xtgt_tape_enable) |
6716 | /* Enable FC tape support */ | |
6717 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
6718 | else | |
6719 | /* Disable FC tape support */ | |
6720 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
6721 | ||
aa230bc5 | 6722 | /* Disable Full Login after LIP */ |
ad950360 | 6723 | nv->host_p &= cpu_to_le32(~BIT_10); |
aa230bc5 | 6724 | /* Enable target PRLI control */ |
ad950360 | 6725 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
aa230bc5 AE |
6726 | } else { |
6727 | if (ha->tgt.saved_set) { | |
6728 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
6729 | nv->firmware_options_1 = | |
6730 | ha->tgt.saved_firmware_options_1; | |
6731 | nv->firmware_options_2 = | |
6732 | ha->tgt.saved_firmware_options_2; | |
6733 | nv->firmware_options_3 = | |
6734 | ha->tgt.saved_firmware_options_3; | |
6735 | } | |
6736 | return; | |
6737 | } | |
6738 | ||
7c3f8fd1 | 6739 | if (ha->base_qpair->enable_class_2) { |
aa230bc5 AE |
6740 | if (vha->flags.init_done) |
6741 | fc_host_supported_classes(vha->host) = | |
6742 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
6743 | ||
ad950360 | 6744 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
aa230bc5 AE |
6745 | } else { |
6746 | if (vha->flags.init_done) | |
6747 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
6748 | ||
ad950360 | 6749 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
aa230bc5 AE |
6750 | } |
6751 | } | |
6752 | ||
6753 | void | |
6754 | qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
6755 | struct init_cb_81xx *icb) | |
6756 | { | |
6757 | struct qla_hw_data *ha = vha->hw; | |
6758 | ||
6759 | if (!QLA_TGT_MODE_ENABLED()) | |
6760 | return; | |
6761 | ||
6762 | if (ha->tgt.node_name_set) { | |
6763 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 6764 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
aa230bc5 | 6765 | } |
481ce733 QT |
6766 | |
6767 | /* disable ZIO at start time. */ | |
6768 | if (!vha->flags.init_done) { | |
6769 | uint32_t tmp; | |
6770 | tmp = le32_to_cpu(icb->firmware_options_2); | |
6771 | tmp &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); | |
6772 | icb->firmware_options_2 = cpu_to_le32(tmp); | |
6773 | } | |
6774 | ||
aa230bc5 AE |
6775 | } |
6776 | ||
6777 | void | |
6778 | qlt_83xx_iospace_config(struct qla_hw_data *ha) | |
6779 | { | |
6780 | if (!QLA_TGT_MODE_ENABLED()) | |
6781 | return; | |
6782 | ||
6783 | ha->msix_count += 1; /* For ATIO Q */ | |
6784 | } | |
6785 | ||
2d70c103 NB |
6786 | |
6787 | void | |
6788 | qlt_modify_vp_config(struct scsi_qla_host *vha, | |
6789 | struct vp_config_entry_24xx *vpmod) | |
6790 | { | |
ead03855 QT |
6791 | /* enable target mode. Bit5 = 1 => disable */ |
6792 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) | |
2d70c103 | 6793 | vpmod->options_idx1 &= ~BIT_5; |
726b8548 | 6794 | |
ead03855 | 6795 | /* Disable ini mode, if requested. bit4 = 1 => disable */ |
726b8548 | 6796 | if (qla_tgt_mode_enabled(vha)) |
2d70c103 NB |
6797 | vpmod->options_idx1 &= ~BIT_4; |
6798 | } | |
6799 | ||
6800 | void | |
6801 | qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) | |
6802 | { | |
482c9dc7 QT |
6803 | int rc; |
6804 | ||
2d70c103 NB |
6805 | if (!QLA_TGT_MODE_ENABLED()) |
6806 | return; | |
6807 | ||
b7edfa23 | 6808 | if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { |
aa230bc5 AE |
6809 | ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in; |
6810 | ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out; | |
6811 | } else { | |
6812 | ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in; | |
6813 | ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out; | |
6814 | } | |
6815 | ||
0e8cd71c SK |
6816 | mutex_init(&base_vha->vha_tgt.tgt_mutex); |
6817 | mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex); | |
41dc529a QT |
6818 | |
6819 | INIT_LIST_HEAD(&base_vha->unknown_atio_list); | |
6820 | INIT_DELAYED_WORK(&base_vha->unknown_atio_work, | |
6821 | qlt_unknown_atio_work_fn); | |
6822 | ||
2d70c103 | 6823 | qlt_clear_mode(base_vha); |
482c9dc7 QT |
6824 | |
6825 | rc = btree_init32(&ha->tgt.host_map); | |
6826 | if (rc) | |
83548fe2 | 6827 | ql_log(ql_log_info, base_vha, 0xd03d, |
482c9dc7 QT |
6828 | "Unable to initialize ha->host_map btree\n"); |
6829 | ||
6830 | qlt_update_vp_map(base_vha, SET_VP_IDX); | |
2d70c103 NB |
6831 | } |
6832 | ||
aa230bc5 AE |
6833 | irqreturn_t |
6834 | qla83xx_msix_atio_q(int irq, void *dev_id) | |
6835 | { | |
6836 | struct rsp_que *rsp; | |
6837 | scsi_qla_host_t *vha; | |
6838 | struct qla_hw_data *ha; | |
6839 | unsigned long flags; | |
6840 | ||
6841 | rsp = (struct rsp_que *) dev_id; | |
6842 | ha = rsp->hw; | |
6843 | vha = pci_get_drvdata(ha->pdev); | |
6844 | ||
2f424b9b | 6845 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); |
aa230bc5 | 6846 | |
2f424b9b | 6847 | qlt_24xx_process_atio_queue(vha, 0); |
aa230bc5 | 6848 | |
2f424b9b | 6849 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); |
aa230bc5 AE |
6850 | |
6851 | return IRQ_HANDLED; | |
6852 | } | |
6853 | ||
2f424b9b QT |
6854 | static void |
6855 | qlt_handle_abts_recv_work(struct work_struct *work) | |
6856 | { | |
6857 | struct qla_tgt_sess_op *op = container_of(work, | |
6858 | struct qla_tgt_sess_op, work); | |
6859 | scsi_qla_host_t *vha = op->vha; | |
6860 | struct qla_hw_data *ha = vha->hw; | |
6861 | unsigned long flags; | |
6862 | ||
7c3f8fd1 QT |
6863 | if (qla2x00_reset_active(vha) || |
6864 | (op->chip_reset != ha->base_qpair->chip_reset)) | |
2f424b9b QT |
6865 | return; |
6866 | ||
6867 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); | |
6868 | qlt_24xx_process_atio_queue(vha, 0); | |
6869 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); | |
6870 | ||
6871 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
82de802a | 6872 | qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio); |
2f424b9b | 6873 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
ae940f2c QT |
6874 | |
6875 | kfree(op); | |
2f424b9b QT |
6876 | } |
6877 | ||
6878 | void | |
82de802a QT |
6879 | qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp, |
6880 | response_t *pkt) | |
2f424b9b QT |
6881 | { |
6882 | struct qla_tgt_sess_op *op; | |
6883 | ||
6884 | op = kzalloc(sizeof(*op), GFP_ATOMIC); | |
6885 | ||
6886 | if (!op) { | |
6887 | /* do not reach for ATIO queue here. This is best effort err | |
6888 | * recovery at this point. | |
6889 | */ | |
82de802a | 6890 | qlt_response_pkt_all_vps(vha, rsp, pkt); |
2f424b9b QT |
6891 | return; |
6892 | } | |
6893 | ||
6894 | memcpy(&op->atio, pkt, sizeof(*pkt)); | |
6895 | op->vha = vha; | |
7c3f8fd1 | 6896 | op->chip_reset = vha->hw->base_qpair->chip_reset; |
82de802a | 6897 | op->rsp = rsp; |
2f424b9b QT |
6898 | INIT_WORK(&op->work, qlt_handle_abts_recv_work); |
6899 | queue_work(qla_tgt_wq, &op->work); | |
6900 | return; | |
6901 | } | |
6902 | ||
2d70c103 NB |
6903 | int |
6904 | qlt_mem_alloc(struct qla_hw_data *ha) | |
6905 | { | |
6906 | if (!QLA_TGT_MODE_ENABLED()) | |
6907 | return 0; | |
6908 | ||
6909 | ha->tgt.tgt_vp_map = kzalloc(sizeof(struct qla_tgt_vp_map) * | |
6910 | MAX_MULTI_ID_FABRIC, GFP_KERNEL); | |
6911 | if (!ha->tgt.tgt_vp_map) | |
6912 | return -ENOMEM; | |
6913 | ||
6914 | ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev, | |
6915 | (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp), | |
6916 | &ha->tgt.atio_dma, GFP_KERNEL); | |
6917 | if (!ha->tgt.atio_ring) { | |
6918 | kfree(ha->tgt.tgt_vp_map); | |
6919 | return -ENOMEM; | |
6920 | } | |
6921 | return 0; | |
6922 | } | |
6923 | ||
6924 | void | |
6925 | qlt_mem_free(struct qla_hw_data *ha) | |
6926 | { | |
6927 | if (!QLA_TGT_MODE_ENABLED()) | |
6928 | return; | |
6929 | ||
6930 | if (ha->tgt.atio_ring) { | |
6931 | dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) * | |
6932 | sizeof(struct atio_from_isp), ha->tgt.atio_ring, | |
6933 | ha->tgt.atio_dma); | |
6934 | } | |
6935 | kfree(ha->tgt.tgt_vp_map); | |
6936 | } | |
6937 | ||
6938 | /* vport_slock to be held by the caller */ | |
6939 | void | |
6940 | qlt_update_vp_map(struct scsi_qla_host *vha, int cmd) | |
6941 | { | |
482c9dc7 QT |
6942 | void *slot; |
6943 | u32 key; | |
6944 | int rc; | |
6945 | ||
2d70c103 NB |
6946 | if (!QLA_TGT_MODE_ENABLED()) |
6947 | return; | |
6948 | ||
482c9dc7 QT |
6949 | key = vha->d_id.b24; |
6950 | ||
2d70c103 NB |
6951 | switch (cmd) { |
6952 | case SET_VP_IDX: | |
6953 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha; | |
6954 | break; | |
6955 | case SET_AL_PA: | |
482c9dc7 QT |
6956 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); |
6957 | if (!slot) { | |
83548fe2 | 6958 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018, |
482c9dc7 QT |
6959 | "Save vha in host_map %p %06x\n", vha, key); |
6960 | rc = btree_insert32(&vha->hw->tgt.host_map, | |
6961 | key, vha, GFP_ATOMIC); | |
6962 | if (rc) | |
83548fe2 | 6963 | ql_log(ql_log_info, vha, 0xd03e, |
482c9dc7 QT |
6964 | "Unable to insert s_id into host_map: %06x\n", |
6965 | key); | |
6966 | return; | |
6967 | } | |
83548fe2 QT |
6968 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019, |
6969 | "replace existing vha in host_map %p %06x\n", vha, key); | |
482c9dc7 | 6970 | btree_update32(&vha->hw->tgt.host_map, key, vha); |
2d70c103 NB |
6971 | break; |
6972 | case RESET_VP_IDX: | |
6973 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL; | |
6974 | break; | |
6975 | case RESET_AL_PA: | |
83548fe2 | 6976 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a, |
482c9dc7 QT |
6977 | "clear vha in host_map %p %06x\n", vha, key); |
6978 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); | |
6979 | if (slot) | |
6980 | btree_remove32(&vha->hw->tgt.host_map, key); | |
6981 | vha->d_id.b24 = 0; | |
2d70c103 NB |
6982 | break; |
6983 | } | |
6984 | } | |
6985 | ||
482c9dc7 QT |
6986 | void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id) |
6987 | { | |
6988 | unsigned long flags; | |
6989 | struct qla_hw_data *ha = vha->hw; | |
6990 | ||
6991 | if (!vha->d_id.b24) { | |
6992 | spin_lock_irqsave(&ha->vport_slock, flags); | |
6993 | vha->d_id = id; | |
6994 | qlt_update_vp_map(vha, SET_AL_PA); | |
6995 | spin_unlock_irqrestore(&ha->vport_slock, flags); | |
6996 | } else if (vha->d_id.b24 != id.b24) { | |
6997 | spin_lock_irqsave(&ha->vport_slock, flags); | |
6998 | qlt_update_vp_map(vha, RESET_AL_PA); | |
6999 | vha->d_id = id; | |
7000 | qlt_update_vp_map(vha, SET_AL_PA); | |
7001 | spin_unlock_irqrestore(&ha->vport_slock, flags); | |
7002 | } | |
7003 | } | |
7004 | ||
2d70c103 NB |
7005 | static int __init qlt_parse_ini_mode(void) |
7006 | { | |
7007 | if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0) | |
7008 | ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE; | |
7009 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0) | |
7010 | ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED; | |
7011 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0) | |
7012 | ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED; | |
ead03855 QT |
7013 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0) |
7014 | ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL; | |
2d70c103 NB |
7015 | else |
7016 | return false; | |
7017 | ||
7018 | return true; | |
7019 | } | |
7020 | ||
7021 | int __init qlt_init(void) | |
7022 | { | |
7023 | int ret; | |
7024 | ||
7025 | if (!qlt_parse_ini_mode()) { | |
7026 | ql_log(ql_log_fatal, NULL, 0xe06b, | |
7027 | "qlt_parse_ini_mode() failed\n"); | |
7028 | return -EINVAL; | |
7029 | } | |
7030 | ||
7031 | if (!QLA_TGT_MODE_ENABLED()) | |
7032 | return 0; | |
7033 | ||
2d70c103 NB |
7034 | qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep", |
7035 | sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct | |
7036 | qla_tgt_mgmt_cmd), 0, NULL); | |
7037 | if (!qla_tgt_mgmt_cmd_cachep) { | |
83548fe2 | 7038 | ql_log(ql_log_fatal, NULL, 0xd04b, |
2d70c103 | 7039 | "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n"); |
51a07f84 | 7040 | return -ENOMEM; |
2d70c103 NB |
7041 | } |
7042 | ||
b7bd104e | 7043 | qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep", |
5d964837 QT |
7044 | sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t), |
7045 | 0, NULL); | |
b7bd104e AP |
7046 | |
7047 | if (!qla_tgt_plogi_cachep) { | |
7048 | ql_log(ql_log_fatal, NULL, 0xe06d, | |
7049 | "kmem_cache_create for qla_tgt_plogi_cachep failed\n"); | |
7050 | ret = -ENOMEM; | |
7051 | goto out_mgmt_cmd_cachep; | |
7052 | } | |
7053 | ||
2d70c103 NB |
7054 | qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab, |
7055 | mempool_free_slab, qla_tgt_mgmt_cmd_cachep); | |
7056 | if (!qla_tgt_mgmt_cmd_mempool) { | |
7057 | ql_log(ql_log_fatal, NULL, 0xe06e, | |
7058 | "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n"); | |
7059 | ret = -ENOMEM; | |
b7bd104e | 7060 | goto out_plogi_cachep; |
2d70c103 NB |
7061 | } |
7062 | ||
7063 | qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0); | |
7064 | if (!qla_tgt_wq) { | |
7065 | ql_log(ql_log_fatal, NULL, 0xe06f, | |
7066 | "alloc_workqueue for qla_tgt_wq failed\n"); | |
7067 | ret = -ENOMEM; | |
7068 | goto out_cmd_mempool; | |
7069 | } | |
7070 | /* | |
7071 | * Return 1 to signal that initiator-mode is being disabled | |
7072 | */ | |
7073 | return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0; | |
7074 | ||
7075 | out_cmd_mempool: | |
7076 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e AP |
7077 | out_plogi_cachep: |
7078 | kmem_cache_destroy(qla_tgt_plogi_cachep); | |
2d70c103 NB |
7079 | out_mgmt_cmd_cachep: |
7080 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); | |
2d70c103 NB |
7081 | return ret; |
7082 | } | |
7083 | ||
7084 | void qlt_exit(void) | |
7085 | { | |
7086 | if (!QLA_TGT_MODE_ENABLED()) | |
7087 | return; | |
7088 | ||
7089 | destroy_workqueue(qla_tgt_wq); | |
7090 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e | 7091 | kmem_cache_destroy(qla_tgt_plogi_cachep); |
2d70c103 | 7092 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); |
2d70c103 | 7093 | } |