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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 | |
7cf95f7e QT |
78 | static int qla_sam_status = SAM_STAT_BUSY; |
79 | static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */ | |
33e79977 | 80 | |
2d70c103 NB |
81 | /* |
82 | * From scsi/fc/fc_fcp.h | |
83 | */ | |
84 | enum fcp_resp_rsp_codes { | |
85 | FCP_TMF_CMPL = 0, | |
86 | FCP_DATA_LEN_INVALID = 1, | |
87 | FCP_CMND_FIELDS_INVALID = 2, | |
88 | FCP_DATA_PARAM_MISMATCH = 3, | |
89 | FCP_TMF_REJECTED = 4, | |
90 | FCP_TMF_FAILED = 5, | |
91 | FCP_TMF_INVALID_LUN = 9, | |
92 | }; | |
93 | ||
94 | /* | |
95 | * fc_pri_ta from scsi/fc/fc_fcp.h | |
96 | */ | |
97 | #define FCP_PTA_SIMPLE 0 /* simple task attribute */ | |
98 | #define FCP_PTA_HEADQ 1 /* head of queue task attribute */ | |
99 | #define FCP_PTA_ORDERED 2 /* ordered task attribute */ | |
6efb3c0a | 100 | #define FCP_PTA_ACA 4 /* auto. contingent allegiance */ |
2d70c103 NB |
101 | #define FCP_PTA_MASK 7 /* mask for task attribute field */ |
102 | #define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */ | |
103 | #define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */ | |
104 | ||
105 | /* | |
106 | * This driver calls qla2x00_alloc_iocbs() and qla2x00_issue_marker(), which | |
107 | * must be called under HW lock and could unlock/lock it inside. | |
108 | * It isn't an issue, since in the current implementation on the time when | |
109 | * those functions are called: | |
110 | * | |
111 | * - Either context is IRQ and only IRQ handler can modify HW data, | |
112 | * including rings related fields, | |
113 | * | |
114 | * - Or access to target mode variables from struct qla_tgt doesn't | |
115 | * cross those functions boundaries, except tgt_stop, which | |
116 | * additionally protected by irq_cmd_count. | |
117 | */ | |
118 | /* Predefs for callbacks handed to qla2xxx LLD */ | |
119 | static void qlt_24xx_atio_pkt(struct scsi_qla_host *ha, | |
2f424b9b | 120 | struct atio_from_isp *pkt, uint8_t); |
82de802a QT |
121 | static void qlt_response_pkt(struct scsi_qla_host *ha, struct rsp_que *rsp, |
122 | response_t *pkt); | |
5d964837 | 123 | static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, |
2d70c103 | 124 | int fn, void *iocb, int flags); |
82de802a | 125 | static void qlt_send_term_exchange(struct qla_qpair *, struct qla_tgt_cmd |
a07100e0 | 126 | *cmd, struct atio_from_isp *atio, int ha_locked, int ul_abort); |
33e79977 QT |
127 | static void qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, |
128 | struct atio_from_isp *atio, uint16_t status, int qfull); | |
55a9066f | 129 | static void qlt_disable_vha(struct scsi_qla_host *vha); |
b2032fd5 | 130 | static void qlt_clear_tgt_db(struct qla_tgt *tgt); |
82de802a | 131 | static void qlt_send_notify_ack(struct qla_qpair *qpair, |
a6ca8878 AP |
132 | struct imm_ntfy_from_isp *ntfy, |
133 | uint32_t add_flags, uint16_t resp_code, int resp_code_valid, | |
134 | uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan); | |
b7bd104e AP |
135 | static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, |
136 | struct imm_ntfy_from_isp *imm, int ha_locked); | |
726b8548 QT |
137 | static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha, |
138 | fc_port_t *fcport, bool local); | |
139 | void qlt_unreg_sess(struct fc_port *sess); | |
8f6fc8d4 QT |
140 | static void qlt_24xx_handle_abts(struct scsi_qla_host *, |
141 | struct abts_recv_from_24xx *); | |
82de802a QT |
142 | static void qlt_send_busy(struct qla_qpair *, struct atio_from_isp *, |
143 | uint16_t); | |
6b0431d6 QT |
144 | static int qlt_check_reserve_free_req(struct qla_qpair *qpair, uint32_t); |
145 | static inline uint32_t qlt_make_handle(struct qla_qpair *); | |
8f6fc8d4 | 146 | |
2d70c103 NB |
147 | /* |
148 | * Global Variables | |
149 | */ | |
2d70c103 | 150 | static struct kmem_cache *qla_tgt_mgmt_cmd_cachep; |
b5d15312 | 151 | struct kmem_cache *qla_tgt_plogi_cachep; |
2d70c103 NB |
152 | static mempool_t *qla_tgt_mgmt_cmd_mempool; |
153 | static struct workqueue_struct *qla_tgt_wq; | |
154 | static DEFINE_MUTEX(qla_tgt_mutex); | |
155 | static LIST_HEAD(qla_tgt_glist); | |
156 | ||
be25152c QT |
157 | static const char *prot_op_str(u32 prot_op) |
158 | { | |
159 | switch (prot_op) { | |
160 | case TARGET_PROT_NORMAL: return "NORMAL"; | |
161 | case TARGET_PROT_DIN_INSERT: return "DIN_INSERT"; | |
162 | case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT"; | |
163 | case TARGET_PROT_DIN_STRIP: return "DIN_STRIP"; | |
164 | case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP"; | |
165 | case TARGET_PROT_DIN_PASS: return "DIN_PASS"; | |
166 | case TARGET_PROT_DOUT_PASS: return "DOUT_PASS"; | |
167 | default: return "UNKNOWN"; | |
168 | } | |
169 | } | |
170 | ||
df673274 AP |
171 | /* This API intentionally takes dest as a parameter, rather than returning |
172 | * int value to avoid caller forgetting to issue wmb() after the store */ | |
173 | void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest) | |
174 | { | |
175 | scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev); | |
176 | *dest = atomic_inc_return(&base_vha->generation_tick); | |
177 | /* memory barrier */ | |
178 | wmb(); | |
179 | } | |
180 | ||
2d70c103 NB |
181 | /* Might release hw lock, then reaquire!! */ |
182 | static inline int qlt_issue_marker(struct scsi_qla_host *vha, int vha_locked) | |
183 | { | |
184 | /* Send marker if required */ | |
185 | if (unlikely(vha->marker_needed != 0)) { | |
186 | int rc = qla2x00_issue_marker(vha, vha_locked); | |
187 | if (rc != QLA_SUCCESS) { | |
188 | ql_dbg(ql_dbg_tgt, vha, 0xe03d, | |
189 | "qla_target(%d): issue_marker() failed\n", | |
190 | vha->vp_idx); | |
191 | } | |
192 | return rc; | |
193 | } | |
194 | return QLA_SUCCESS; | |
195 | } | |
196 | ||
197 | static inline | |
198 | struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha, | |
199 | uint8_t *d_id) | |
200 | { | |
482c9dc7 QT |
201 | struct scsi_qla_host *host; |
202 | uint32_t key = 0; | |
2d70c103 | 203 | |
482c9dc7 QT |
204 | if ((vha->d_id.b.area == d_id[1]) && (vha->d_id.b.domain == d_id[0]) && |
205 | (vha->d_id.b.al_pa == d_id[2])) | |
2d70c103 NB |
206 | return vha; |
207 | ||
482c9dc7 QT |
208 | key = (uint32_t)d_id[0] << 16; |
209 | key |= (uint32_t)d_id[1] << 8; | |
210 | key |= (uint32_t)d_id[2]; | |
2d70c103 | 211 | |
482c9dc7 QT |
212 | host = btree_lookup32(&vha->hw->tgt.host_map, key); |
213 | if (!host) | |
604e2e57 | 214 | ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005, |
83548fe2 | 215 | "Unable to find host %06x\n", key); |
482c9dc7 QT |
216 | |
217 | return host; | |
2d70c103 NB |
218 | } |
219 | ||
220 | static inline | |
221 | struct scsi_qla_host *qlt_find_host_by_vp_idx(struct scsi_qla_host *vha, | |
222 | uint16_t vp_idx) | |
223 | { | |
224 | struct qla_hw_data *ha = vha->hw; | |
225 | ||
226 | if (vha->vp_idx == vp_idx) | |
227 | return vha; | |
228 | ||
229 | BUG_ON(ha->tgt.tgt_vp_map == NULL); | |
230 | if (likely(test_bit(vp_idx, ha->vp_idx_map))) | |
231 | return ha->tgt.tgt_vp_map[vp_idx].vha; | |
232 | ||
233 | return NULL; | |
234 | } | |
235 | ||
33e79977 QT |
236 | static inline void qlt_incr_num_pend_cmds(struct scsi_qla_host *vha) |
237 | { | |
238 | unsigned long flags; | |
239 | ||
240 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
241 | ||
242 | vha->hw->tgt.num_pend_cmds++; | |
fc90adaf JC |
243 | if (vha->hw->tgt.num_pend_cmds > vha->qla_stats.stat_max_pend_cmds) |
244 | vha->qla_stats.stat_max_pend_cmds = | |
33e79977 QT |
245 | vha->hw->tgt.num_pend_cmds; |
246 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
247 | } | |
248 | static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha) | |
249 | { | |
250 | unsigned long flags; | |
251 | ||
252 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
253 | vha->hw->tgt.num_pend_cmds--; | |
254 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
255 | } | |
256 | ||
41dc529a QT |
257 | |
258 | static void qlt_queue_unknown_atio(scsi_qla_host_t *vha, | |
82de802a | 259 | struct atio_from_isp *atio, uint8_t ha_locked) |
41dc529a QT |
260 | { |
261 | struct qla_tgt_sess_op *u; | |
262 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
263 | unsigned long flags; | |
264 | ||
265 | if (tgt->tgt_stop) { | |
83548fe2 QT |
266 | ql_dbg(ql_dbg_async, vha, 0x502c, |
267 | "qla_target(%d): dropping unknown ATIO_TYPE7, because tgt is being stopped", | |
268 | vha->vp_idx); | |
41dc529a QT |
269 | goto out_term; |
270 | } | |
271 | ||
272 | u = kzalloc(sizeof(*u), GFP_ATOMIC); | |
83548fe2 | 273 | if (u == NULL) |
41dc529a | 274 | goto out_term; |
41dc529a QT |
275 | |
276 | u->vha = vha; | |
277 | memcpy(&u->atio, atio, sizeof(*atio)); | |
278 | INIT_LIST_HEAD(&u->cmd_list); | |
279 | ||
280 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
281 | list_add_tail(&u->cmd_list, &vha->unknown_atio_list); | |
282 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
283 | ||
284 | schedule_delayed_work(&vha->unknown_atio_work, 1); | |
285 | ||
286 | out: | |
287 | return; | |
288 | ||
289 | out_term: | |
82de802a | 290 | qlt_send_term_exchange(vha->hw->base_qpair, NULL, atio, ha_locked, 0); |
41dc529a QT |
291 | goto out; |
292 | } | |
293 | ||
294 | static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha, | |
295 | uint8_t ha_locked) | |
296 | { | |
297 | struct qla_tgt_sess_op *u, *t; | |
298 | scsi_qla_host_t *host; | |
299 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
300 | unsigned long flags; | |
301 | uint8_t queued = 0; | |
302 | ||
303 | list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) { | |
304 | if (u->aborted) { | |
83548fe2 QT |
305 | ql_dbg(ql_dbg_async, vha, 0x502e, |
306 | "Freeing unknown %s %p, because of Abort\n", | |
41dc529a | 307 | "ATIO_TYPE7", u); |
82de802a QT |
308 | qlt_send_term_exchange(vha->hw->base_qpair, NULL, |
309 | &u->atio, ha_locked, 0); | |
41dc529a QT |
310 | goto abort; |
311 | } | |
312 | ||
313 | host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id); | |
314 | if (host != NULL) { | |
604e2e57 | 315 | ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f, |
83548fe2 | 316 | "Requeuing unknown ATIO_TYPE7 %p\n", u); |
41dc529a QT |
317 | qlt_24xx_atio_pkt(host, &u->atio, ha_locked); |
318 | } else if (tgt->tgt_stop) { | |
604e2e57 | 319 | ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a, |
83548fe2 QT |
320 | "Freeing unknown %s %p, because tgt is being stopped\n", |
321 | "ATIO_TYPE7", u); | |
82de802a QT |
322 | qlt_send_term_exchange(vha->hw->base_qpair, NULL, |
323 | &u->atio, ha_locked, 0); | |
41dc529a | 324 | } else { |
604e2e57 | 325 | ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d, |
83548fe2 | 326 | "Reschedule u %p, vha %p, host %p\n", u, vha, host); |
41dc529a QT |
327 | if (!queued) { |
328 | queued = 1; | |
329 | schedule_delayed_work(&vha->unknown_atio_work, | |
330 | 1); | |
331 | } | |
332 | continue; | |
333 | } | |
334 | ||
335 | abort: | |
336 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
337 | list_del(&u->cmd_list); | |
338 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
339 | kfree(u); | |
340 | } | |
341 | } | |
342 | ||
343 | void qlt_unknown_atio_work_fn(struct work_struct *work) | |
344 | { | |
345 | struct scsi_qla_host *vha = container_of(to_delayed_work(work), | |
346 | struct scsi_qla_host, unknown_atio_work); | |
347 | ||
348 | qlt_try_to_dequeue_unknown_atios(vha, 0); | |
349 | } | |
350 | ||
3bb67df5 | 351 | static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, |
2f424b9b | 352 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 | 353 | { |
f83adb61 QT |
354 | ql_dbg(ql_dbg_tgt, vha, 0xe072, |
355 | "%s: qla_target(%d): type %x ox_id %04x\n", | |
356 | __func__, vha->vp_idx, atio->u.raw.entry_type, | |
357 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
358 | ||
2d70c103 NB |
359 | switch (atio->u.raw.entry_type) { |
360 | case ATIO_TYPE7: | |
361 | { | |
362 | struct scsi_qla_host *host = qlt_find_host_by_d_id(vha, | |
363 | atio->u.isp24.fcp_hdr.d_id); | |
364 | if (unlikely(NULL == host)) { | |
365 | ql_dbg(ql_dbg_tgt, vha, 0xe03e, | |
366 | "qla_target(%d): Received ATIO_TYPE7 " | |
367 | "with unknown d_id %x:%x:%x\n", vha->vp_idx, | |
368 | atio->u.isp24.fcp_hdr.d_id[0], | |
369 | atio->u.isp24.fcp_hdr.d_id[1], | |
370 | atio->u.isp24.fcp_hdr.d_id[2]); | |
41dc529a QT |
371 | |
372 | ||
373 | qlt_queue_unknown_atio(vha, atio, ha_locked); | |
2d70c103 NB |
374 | break; |
375 | } | |
41dc529a QT |
376 | if (unlikely(!list_empty(&vha->unknown_atio_list))) |
377 | qlt_try_to_dequeue_unknown_atios(vha, ha_locked); | |
378 | ||
2f424b9b | 379 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
380 | break; |
381 | } | |
382 | ||
383 | case IMMED_NOTIFY_TYPE: | |
384 | { | |
385 | struct scsi_qla_host *host = vha; | |
386 | struct imm_ntfy_from_isp *entry = | |
387 | (struct imm_ntfy_from_isp *)atio; | |
388 | ||
82de802a QT |
389 | qlt_issue_marker(vha, ha_locked); |
390 | ||
2d70c103 NB |
391 | if ((entry->u.isp24.vp_index != 0xFF) && |
392 | (entry->u.isp24.nport_handle != 0xFFFF)) { | |
393 | host = qlt_find_host_by_vp_idx(vha, | |
394 | entry->u.isp24.vp_index); | |
395 | if (unlikely(!host)) { | |
396 | ql_dbg(ql_dbg_tgt, vha, 0xe03f, | |
397 | "qla_target(%d): Received " | |
398 | "ATIO (IMMED_NOTIFY_TYPE) " | |
399 | "with unknown vp_index %d\n", | |
400 | vha->vp_idx, entry->u.isp24.vp_index); | |
401 | break; | |
402 | } | |
403 | } | |
2f424b9b | 404 | qlt_24xx_atio_pkt(host, atio, ha_locked); |
2d70c103 NB |
405 | break; |
406 | } | |
407 | ||
41dc529a QT |
408 | case VP_RPT_ID_IOCB_TYPE: |
409 | qla24xx_report_id_acquisition(vha, | |
410 | (struct vp_rpt_id_entry_24xx *)atio); | |
411 | break; | |
412 | ||
413 | case ABTS_RECV_24XX: | |
414 | { | |
415 | struct abts_recv_from_24xx *entry = | |
416 | (struct abts_recv_from_24xx *)atio; | |
417 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
418 | entry->vp_index); | |
8f6fc8d4 QT |
419 | unsigned long flags; |
420 | ||
41dc529a | 421 | if (unlikely(!host)) { |
83548fe2 | 422 | ql_dbg(ql_dbg_tgt, vha, 0xe00a, |
41dc529a QT |
423 | "qla_target(%d): Response pkt (ABTS_RECV_24XX) " |
424 | "received, with unknown vp_index %d\n", | |
425 | vha->vp_idx, entry->vp_index); | |
426 | break; | |
427 | } | |
8f6fc8d4 QT |
428 | if (!ha_locked) |
429 | spin_lock_irqsave(&host->hw->hardware_lock, flags); | |
430 | qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio); | |
431 | if (!ha_locked) | |
432 | spin_unlock_irqrestore(&host->hw->hardware_lock, flags); | |
41dc529a | 433 | break; |
41dc529a QT |
434 | } |
435 | ||
436 | /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */ | |
437 | ||
2d70c103 NB |
438 | default: |
439 | ql_dbg(ql_dbg_tgt, vha, 0xe040, | |
440 | "qla_target(%d): Received unknown ATIO atio " | |
441 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
442 | break; | |
443 | } | |
444 | ||
3bb67df5 | 445 | return false; |
2d70c103 NB |
446 | } |
447 | ||
82de802a QT |
448 | void qlt_response_pkt_all_vps(struct scsi_qla_host *vha, |
449 | struct rsp_que *rsp, response_t *pkt) | |
2d70c103 NB |
450 | { |
451 | switch (pkt->entry_type) { | |
f83adb61 QT |
452 | case CTIO_CRC2: |
453 | ql_dbg(ql_dbg_tgt, vha, 0xe073, | |
454 | "qla_target(%d):%s: CRC2 Response pkt\n", | |
455 | vha->vp_idx, __func__); | |
81881861 | 456 | /* fall through */ |
2d70c103 NB |
457 | case CTIO_TYPE7: |
458 | { | |
459 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
460 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
461 | entry->vp_index); | |
462 | if (unlikely(!host)) { | |
463 | ql_dbg(ql_dbg_tgt, vha, 0xe041, | |
464 | "qla_target(%d): Response pkt (CTIO_TYPE7) " | |
465 | "received, with unknown vp_index %d\n", | |
466 | vha->vp_idx, entry->vp_index); | |
467 | break; | |
468 | } | |
82de802a | 469 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
470 | break; |
471 | } | |
472 | ||
473 | case IMMED_NOTIFY_TYPE: | |
474 | { | |
475 | struct scsi_qla_host *host = vha; | |
476 | struct imm_ntfy_from_isp *entry = | |
477 | (struct imm_ntfy_from_isp *)pkt; | |
478 | ||
479 | host = qlt_find_host_by_vp_idx(vha, entry->u.isp24.vp_index); | |
480 | if (unlikely(!host)) { | |
481 | ql_dbg(ql_dbg_tgt, vha, 0xe042, | |
482 | "qla_target(%d): Response pkt (IMMED_NOTIFY_TYPE) " | |
483 | "received, with unknown vp_index %d\n", | |
484 | vha->vp_idx, entry->u.isp24.vp_index); | |
485 | break; | |
486 | } | |
82de802a | 487 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
488 | break; |
489 | } | |
490 | ||
491 | case NOTIFY_ACK_TYPE: | |
492 | { | |
493 | struct scsi_qla_host *host = vha; | |
494 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
495 | ||
496 | if (0xFF != entry->u.isp24.vp_index) { | |
497 | host = qlt_find_host_by_vp_idx(vha, | |
498 | entry->u.isp24.vp_index); | |
499 | if (unlikely(!host)) { | |
500 | ql_dbg(ql_dbg_tgt, vha, 0xe043, | |
501 | "qla_target(%d): Response " | |
502 | "pkt (NOTIFY_ACK_TYPE) " | |
503 | "received, with unknown " | |
504 | "vp_index %d\n", vha->vp_idx, | |
505 | entry->u.isp24.vp_index); | |
506 | break; | |
507 | } | |
508 | } | |
82de802a | 509 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
510 | break; |
511 | } | |
512 | ||
513 | case ABTS_RECV_24XX: | |
514 | { | |
515 | struct abts_recv_from_24xx *entry = | |
516 | (struct abts_recv_from_24xx *)pkt; | |
517 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
518 | entry->vp_index); | |
519 | if (unlikely(!host)) { | |
520 | ql_dbg(ql_dbg_tgt, vha, 0xe044, | |
521 | "qla_target(%d): Response pkt " | |
522 | "(ABTS_RECV_24XX) received, with unknown " | |
523 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
524 | break; | |
525 | } | |
82de802a | 526 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
527 | break; |
528 | } | |
529 | ||
530 | case ABTS_RESP_24XX: | |
531 | { | |
532 | struct abts_resp_to_24xx *entry = | |
533 | (struct abts_resp_to_24xx *)pkt; | |
534 | struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, | |
535 | entry->vp_index); | |
536 | if (unlikely(!host)) { | |
537 | ql_dbg(ql_dbg_tgt, vha, 0xe045, | |
538 | "qla_target(%d): Response pkt " | |
539 | "(ABTS_RECV_24XX) received, with unknown " | |
540 | "vp_index %d\n", vha->vp_idx, entry->vp_index); | |
541 | break; | |
542 | } | |
82de802a | 543 | qlt_response_pkt(host, rsp, pkt); |
2d70c103 NB |
544 | break; |
545 | } | |
2d70c103 | 546 | default: |
82de802a | 547 | qlt_response_pkt(vha, rsp, pkt); |
2d70c103 NB |
548 | break; |
549 | } | |
550 | ||
551 | } | |
552 | ||
b7bd104e AP |
553 | /* |
554 | * All qlt_plogi_ack_t operations are protected by hardware_lock | |
555 | */ | |
726b8548 QT |
556 | static int qla24xx_post_nack_work(struct scsi_qla_host *vha, fc_port_t *fcport, |
557 | struct imm_ntfy_from_isp *ntfy, int type) | |
558 | { | |
559 | struct qla_work_evt *e; | |
560 | e = qla2x00_alloc_work(vha, QLA_EVT_NACK); | |
561 | if (!e) | |
562 | return QLA_FUNCTION_FAILED; | |
563 | ||
564 | e->u.nack.fcport = fcport; | |
565 | e->u.nack.type = type; | |
566 | memcpy(e->u.nack.iocb, ntfy, sizeof(struct imm_ntfy_from_isp)); | |
567 | return qla2x00_post_work(vha, e); | |
568 | } | |
569 | ||
570 | static | |
25ff6af1 | 571 | void qla2x00_async_nack_sp_done(void *s, int res) |
726b8548 | 572 | { |
726b8548 | 573 | struct srb *sp = (struct srb *)s; |
25ff6af1 | 574 | struct scsi_qla_host *vha = sp->vha; |
726b8548 QT |
575 | unsigned long flags; |
576 | ||
83548fe2 QT |
577 | ql_dbg(ql_dbg_disc, vha, 0x20f2, |
578 | "Async done-%s res %x %8phC type %d\n", | |
579 | sp->name, res, sp->fcport->port_name, sp->type); | |
726b8548 QT |
580 | |
581 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
582 | sp->fcport->flags &= ~FCF_ASYNC_SENT; | |
7c3f8fd1 | 583 | sp->fcport->chip_reset = vha->hw->base_qpair->chip_reset; |
726b8548 QT |
584 | |
585 | switch (sp->type) { | |
586 | case SRB_NACK_PLOGI: | |
587 | sp->fcport->login_gen++; | |
588 | sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP; | |
589 | sp->fcport->logout_on_delete = 1; | |
5b33469a | 590 | sp->fcport->plogi_nack_done_deadline = jiffies + HZ; |
3515832c | 591 | sp->fcport->send_els_logo = 0; |
726b8548 QT |
592 | break; |
593 | ||
594 | case SRB_NACK_PRLI: | |
595 | sp->fcport->fw_login_state = DSC_LS_PRLI_COMP; | |
596 | sp->fcport->deleted = 0; | |
3515832c | 597 | sp->fcport->send_els_logo = 0; |
726b8548 QT |
598 | |
599 | if (!sp->fcport->login_succ && | |
600 | !IS_SW_RESV_ADDR(sp->fcport->d_id)) { | |
601 | sp->fcport->login_succ = 1; | |
602 | ||
603 | vha->fcport_count++; | |
0aca7784 | 604 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
cd4ed6b4 | 605 | qla24xx_sched_upd_fcport(sp->fcport); |
0aca7784 | 606 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
29528491 QT |
607 | } else { |
608 | sp->fcport->login_retry = 0; | |
609 | sp->fcport->disc_state = DSC_LOGIN_COMPLETE; | |
610 | sp->fcport->deleted = 0; | |
611 | sp->fcport->logout_on_delete = 1; | |
726b8548 QT |
612 | } |
613 | break; | |
614 | ||
615 | case SRB_NACK_LOGO: | |
616 | sp->fcport->login_gen++; | |
617 | sp->fcport->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
618 | qlt_logo_completion_handler(sp->fcport, MBS_COMMAND_COMPLETE); | |
619 | break; | |
620 | } | |
621 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
622 | ||
25ff6af1 | 623 | sp->free(sp); |
726b8548 QT |
624 | } |
625 | ||
626 | int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport, | |
627 | struct imm_ntfy_from_isp *ntfy, int type) | |
628 | { | |
629 | int rval = QLA_FUNCTION_FAILED; | |
630 | srb_t *sp; | |
631 | char *c = NULL; | |
632 | ||
633 | fcport->flags |= FCF_ASYNC_SENT; | |
634 | switch (type) { | |
635 | case SRB_NACK_PLOGI: | |
636 | fcport->fw_login_state = DSC_LS_PLOGI_PEND; | |
637 | c = "PLOGI"; | |
638 | break; | |
639 | case SRB_NACK_PRLI: | |
640 | fcport->fw_login_state = DSC_LS_PRLI_PEND; | |
ec7193e2 | 641 | fcport->deleted = 0; |
726b8548 QT |
642 | c = "PRLI"; |
643 | break; | |
644 | case SRB_NACK_LOGO: | |
645 | fcport->fw_login_state = DSC_LS_LOGO_PEND; | |
646 | c = "LOGO"; | |
647 | break; | |
648 | } | |
649 | ||
650 | sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC); | |
651 | if (!sp) | |
652 | goto done; | |
653 | ||
654 | sp->type = type; | |
655 | sp->name = "nack"; | |
656 | ||
e74e7d95 | 657 | sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; |
726b8548 QT |
658 | qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2); |
659 | ||
660 | sp->u.iocb_cmd.u.nack.ntfy = ntfy; | |
726b8548 QT |
661 | sp->done = qla2x00_async_nack_sp_done; |
662 | ||
83548fe2 QT |
663 | ql_dbg(ql_dbg_disc, vha, 0x20f4, |
664 | "Async-%s %8phC hndl %x %s\n", | |
665 | sp->name, fcport->port_name, sp->handle, c); | |
726b8548 | 666 | |
f233e8c0 BK |
667 | rval = qla2x00_start_sp(sp); |
668 | if (rval != QLA_SUCCESS) | |
669 | goto done_free_sp; | |
670 | ||
726b8548 QT |
671 | return rval; |
672 | ||
673 | done_free_sp: | |
25ff6af1 | 674 | sp->free(sp); |
726b8548 QT |
675 | done: |
676 | fcport->flags &= ~FCF_ASYNC_SENT; | |
677 | return rval; | |
678 | } | |
679 | ||
680 | void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e) | |
681 | { | |
682 | fc_port_t *t; | |
683 | unsigned long flags; | |
684 | ||
685 | switch (e->u.nack.type) { | |
686 | case SRB_NACK_PRLI: | |
1021f0bc QT |
687 | t = e->u.nack.fcport; |
688 | flush_work(&t->del_work); | |
689 | flush_work(&t->free_work); | |
726b8548 QT |
690 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
691 | t = qlt_create_sess(vha, e->u.nack.fcport, 0); | |
692 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
693 | if (t) { | |
83548fe2 | 694 | ql_log(ql_log_info, vha, 0xd034, |
726b8548 QT |
695 | "%s create sess success %p", __func__, t); |
696 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
697 | /* create sess has an extra kref */ | |
698 | vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport); | |
699 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
700 | } | |
701 | break; | |
702 | } | |
703 | qla24xx_async_notify_ack(vha, e->u.nack.fcport, | |
704 | (struct imm_ntfy_from_isp*)e->u.nack.iocb, e->u.nack.type); | |
705 | } | |
706 | ||
707 | void qla24xx_delete_sess_fn(struct work_struct *work) | |
708 | { | |
709 | fc_port_t *fcport = container_of(work, struct fc_port, del_work); | |
710 | struct qla_hw_data *ha = fcport->vha->hw; | |
711 | unsigned long flags; | |
712 | ||
713 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
714 | ||
715 | if (fcport->se_sess) { | |
716 | ha->tgt.tgt_ops->shutdown_sess(fcport); | |
717 | ha->tgt.tgt_ops->put_sess(fcport); | |
718 | } else { | |
719 | qlt_unreg_sess(fcport); | |
720 | } | |
721 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
722 | } | |
723 | ||
724 | /* | |
725 | * Called from qla2x00_reg_remote_port() | |
726 | */ | |
727 | void qlt_fc_port_added(struct scsi_qla_host *vha, fc_port_t *fcport) | |
728 | { | |
729 | struct qla_hw_data *ha = vha->hw; | |
730 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
731 | struct fc_port *sess = fcport; | |
732 | unsigned long flags; | |
733 | ||
734 | if (!vha->hw->tgt.tgt_ops) | |
735 | return; | |
736 | ||
737 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
738 | if (tgt->tgt_stop) { | |
739 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
740 | return; | |
741 | } | |
742 | ||
743 | if (fcport->disc_state == DSC_DELETE_PEND) { | |
744 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
745 | return; | |
746 | } | |
747 | ||
748 | if (!sess->se_sess) { | |
749 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
750 | ||
751 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
752 | sess = qlt_create_sess(vha, fcport, false); | |
753 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
754 | ||
755 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
756 | } else { | |
757 | if (fcport->fw_login_state == DSC_LS_PRLI_COMP) { | |
758 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
759 | return; | |
760 | } | |
761 | ||
762 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 763 | ql_dbg(ql_dbg_disc, vha, 0x2107, |
726b8548 QT |
764 | "%s: kref_get fail sess %8phC \n", |
765 | __func__, sess->port_name); | |
766 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
767 | return; | |
768 | } | |
769 | ||
770 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04c, | |
771 | "qla_target(%u): %ssession for port %8phC " | |
772 | "(loop ID %d) reappeared\n", vha->vp_idx, | |
773 | sess->local ? "local " : "", sess->port_name, sess->loop_id); | |
774 | ||
775 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf007, | |
776 | "Reappeared sess %p\n", sess); | |
777 | ||
778 | ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, | |
779 | fcport->loop_id, | |
780 | (fcport->flags & FCF_CONF_COMP_SUPPORTED)); | |
781 | } | |
782 | ||
783 | if (sess && sess->local) { | |
784 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04d, | |
785 | "qla_target(%u): local session for " | |
786 | "port %8phC (loop ID %d) became global\n", vha->vp_idx, | |
787 | fcport->port_name, sess->loop_id); | |
788 | sess->local = 0; | |
789 | } | |
790 | ha->tgt.tgt_ops->put_sess(sess); | |
791 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
792 | } | |
b7bd104e AP |
793 | |
794 | /* | |
795 | * This is a zero-base ref-counting solution, since hardware_lock | |
796 | * guarantees that ref_count is not modified concurrently. | |
797 | * Upon successful return content of iocb is undefined | |
798 | */ | |
5d964837 | 799 | static struct qlt_plogi_ack_t * |
b7bd104e AP |
800 | qlt_plogi_ack_find_add(struct scsi_qla_host *vha, port_id_t *id, |
801 | struct imm_ntfy_from_isp *iocb) | |
802 | { | |
5d964837 | 803 | struct qlt_plogi_ack_t *pla; |
b7bd104e AP |
804 | |
805 | list_for_each_entry(pla, &vha->plogi_ack_list, list) { | |
806 | if (pla->id.b24 == id->b24) { | |
48acad09 QT |
807 | ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x210d, |
808 | "%s %d %8phC Term INOT due to new INOT", | |
809 | __func__, __LINE__, | |
810 | pla->iocb.u.isp24.port_name); | |
b7bd104e | 811 | qlt_send_term_imm_notif(vha, &pla->iocb, 1); |
5d964837 | 812 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
813 | return pla; |
814 | } | |
815 | } | |
816 | ||
817 | pla = kmem_cache_zalloc(qla_tgt_plogi_cachep, GFP_ATOMIC); | |
818 | if (!pla) { | |
819 | ql_dbg(ql_dbg_async, vha, 0x5088, | |
820 | "qla_target(%d): Allocation of plogi_ack failed\n", | |
821 | vha->vp_idx); | |
822 | return NULL; | |
823 | } | |
824 | ||
5d964837 | 825 | memcpy(&pla->iocb, iocb, sizeof(pla->iocb)); |
b7bd104e AP |
826 | pla->id = *id; |
827 | list_add_tail(&pla->list, &vha->plogi_ack_list); | |
828 | ||
829 | return pla; | |
830 | } | |
831 | ||
726b8548 | 832 | void qlt_plogi_ack_unref(struct scsi_qla_host *vha, |
5d964837 | 833 | struct qlt_plogi_ack_t *pla) |
b7bd104e | 834 | { |
5d964837 | 835 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
726b8548 QT |
836 | port_id_t port_id; |
837 | uint16_t loop_id; | |
838 | fc_port_t *fcport = pla->fcport; | |
839 | ||
b7bd104e AP |
840 | BUG_ON(!pla->ref_count); |
841 | pla->ref_count--; | |
842 | ||
843 | if (pla->ref_count) | |
844 | return; | |
845 | ||
726b8548 | 846 | ql_dbg(ql_dbg_disc, vha, 0x5089, |
b7bd104e | 847 | "Sending PLOGI ACK to wwn %8phC s_id %02x:%02x:%02x loop_id %#04x" |
5d964837 QT |
848 | " exch %#x ox_id %#x\n", iocb->u.isp24.port_name, |
849 | iocb->u.isp24.port_id[2], iocb->u.isp24.port_id[1], | |
850 | iocb->u.isp24.port_id[0], | |
851 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
852 | iocb->u.isp24.exchange_address, iocb->ox_id); | |
726b8548 QT |
853 | |
854 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
855 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
856 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
857 | port_id.b.rsvd_1 = 0; | |
858 | ||
859 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
860 | ||
861 | fcport->loop_id = loop_id; | |
862 | fcport->d_id = port_id; | |
9cd883f0 QT |
863 | if (iocb->u.isp24.status_subcode == ELS_PLOGI) |
864 | qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI); | |
865 | else | |
866 | qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI); | |
726b8548 QT |
867 | |
868 | list_for_each_entry(fcport, &vha->vp_fcports, list) { | |
869 | if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla) | |
870 | fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; | |
871 | if (fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] == pla) | |
872 | fcport->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; | |
873 | } | |
b7bd104e AP |
874 | |
875 | list_del(&pla->list); | |
876 | kmem_cache_free(qla_tgt_plogi_cachep, pla); | |
877 | } | |
878 | ||
726b8548 | 879 | void |
5d964837 QT |
880 | qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla, |
881 | struct fc_port *sess, enum qlt_plogi_link_t link) | |
b7bd104e | 882 | { |
5d964837 | 883 | struct imm_ntfy_from_isp *iocb = &pla->iocb; |
b7bd104e AP |
884 | /* Inc ref_count first because link might already be pointing at pla */ |
885 | pla->ref_count++; | |
886 | ||
726b8548 QT |
887 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf097, |
888 | "Linking sess %p [%d] wwn %8phC with PLOGI ACK to wwn %8phC" | |
889 | " s_id %02x:%02x:%02x, ref=%d pla %p link %d\n", | |
890 | sess, link, sess->port_name, | |
891 | iocb->u.isp24.port_name, iocb->u.isp24.port_id[2], | |
892 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
893 | pla->ref_count, pla, link); | |
894 | ||
5ef696aa QT |
895 | if (link == QLT_PLOGI_LINK_CONFLICT) { |
896 | switch (sess->disc_state) { | |
897 | case DSC_DELETED: | |
898 | case DSC_DELETE_PEND: | |
899 | pla->ref_count--; | |
900 | return; | |
901 | default: | |
902 | break; | |
903 | } | |
904 | } | |
905 | ||
b7bd104e AP |
906 | if (sess->plogi_link[link]) |
907 | qlt_plogi_ack_unref(vha, sess->plogi_link[link]); | |
908 | ||
726b8548 QT |
909 | if (link == QLT_PLOGI_LINK_SAME_WWN) |
910 | pla->fcport = sess; | |
b7bd104e AP |
911 | |
912 | sess->plogi_link[link] = pla; | |
913 | } | |
914 | ||
71cdc079 AP |
915 | typedef struct { |
916 | /* These fields must be initialized by the caller */ | |
917 | port_id_t id; | |
918 | /* | |
919 | * number of cmds dropped while we were waiting for | |
920 | * initiator to ack LOGO initialize to 1 if LOGO is | |
921 | * triggered by a command, otherwise, to 0 | |
922 | */ | |
923 | int cmd_count; | |
924 | ||
925 | /* These fields are used by callee */ | |
926 | struct list_head list; | |
927 | } qlt_port_logo_t; | |
928 | ||
929 | static void | |
930 | qlt_send_first_logo(struct scsi_qla_host *vha, qlt_port_logo_t *logo) | |
931 | { | |
932 | qlt_port_logo_t *tmp; | |
933 | int res; | |
934 | ||
935 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
936 | ||
937 | list_for_each_entry(tmp, &vha->logo_list, list) { | |
938 | if (tmp->id.b24 == logo->id.b24) { | |
939 | tmp->cmd_count += logo->cmd_count; | |
940 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
941 | return; | |
942 | } | |
943 | } | |
944 | ||
945 | list_add_tail(&logo->list, &vha->logo_list); | |
946 | ||
947 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
948 | ||
949 | res = qla24xx_els_dcmd_iocb(vha, ELS_DCMD_LOGO, logo->id); | |
950 | ||
951 | mutex_lock(&vha->vha_tgt.tgt_mutex); | |
952 | list_del(&logo->list); | |
953 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
954 | ||
b7bd104e AP |
955 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf098, |
956 | "Finished LOGO to %02x:%02x:%02x, dropped %d cmds, res = %#x\n", | |
957 | logo->id.b.domain, logo->id.b.area, logo->id.b.al_pa, | |
958 | logo->cmd_count, res); | |
71cdc079 AP |
959 | } |
960 | ||
9dd9686b | 961 | void qlt_free_session_done(struct work_struct *work) |
2d70c103 | 962 | { |
5d964837 | 963 | struct fc_port *sess = container_of(work, struct fc_port, |
2d70c103 NB |
964 | free_work); |
965 | struct qla_tgt *tgt = sess->tgt; | |
966 | struct scsi_qla_host *vha = sess->vha; | |
967 | struct qla_hw_data *ha = vha->hw; | |
a6ca8878 AP |
968 | unsigned long flags; |
969 | bool logout_started = false; | |
41dc529a | 970 | scsi_qla_host_t *base_vha; |
9cd883f0 QT |
971 | struct qlt_plogi_ack_t *own = |
972 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]; | |
a6ca8878 AP |
973 | |
974 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084, | |
975 | "%s: se_sess %p / sess %p from port %8phC loop_id %#04x" | |
b7bd104e | 976 | " s_id %02x:%02x:%02x logout %d keep %d els_logo %d\n", |
a6ca8878 | 977 | __func__, sess->se_sess, sess, sess->port_name, sess->loop_id, |
37cacc0a | 978 | sess->d_id.b.domain, sess->d_id.b.area, sess->d_id.b.al_pa, |
a6ca8878 | 979 | sess->logout_on_delete, sess->keep_nport_handle, |
b7bd104e | 980 | sess->send_els_logo); |
2d70c103 | 981 | |
726b8548 | 982 | if (!IS_SW_RESV_ADDR(sess->d_id)) { |
41dc529a QT |
983 | if (sess->send_els_logo) { |
984 | qlt_port_logo_t logo; | |
71cdc079 | 985 | |
41dc529a QT |
986 | logo.id = sess->d_id; |
987 | logo.cmd_count = 0; | |
cb97f2c2 QT |
988 | if (!own) |
989 | qlt_send_first_logo(vha, &logo); | |
a2390348 | 990 | sess->send_els_logo = 0; |
41dc529a QT |
991 | } |
992 | ||
ba743f91 | 993 | if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) { |
41dc529a QT |
994 | int rc; |
995 | ||
9cd883f0 QT |
996 | if (!own || |
997 | (own && | |
998 | (own->iocb.u.isp24.status_subcode == ELS_PLOGI))) { | |
999 | rc = qla2x00_post_async_logout_work(vha, sess, | |
1000 | NULL); | |
1001 | if (rc != QLA_SUCCESS) | |
1002 | ql_log(ql_log_warn, vha, 0xf085, | |
1003 | "Schedule logo failed sess %p rc %d\n", | |
1004 | sess, rc); | |
1005 | else | |
1006 | logout_started = true; | |
1007 | } else if (own && (own->iocb.u.isp24.status_subcode == | |
1008 | ELS_PRLI) && ha->flags.rida_fmt2) { | |
1009 | rc = qla2x00_post_async_prlo_work(vha, sess, | |
1010 | NULL); | |
1011 | if (rc != QLA_SUCCESS) | |
1012 | ql_log(ql_log_warn, vha, 0xf085, | |
1013 | "Schedule PRLO failed sess %p rc %d\n", | |
1014 | sess, rc); | |
1015 | else | |
1016 | logout_started = true; | |
1017 | } | |
41dc529a | 1018 | } |
726b8548 | 1019 | } |
a6ca8878 | 1020 | |
2d70c103 NB |
1021 | /* |
1022 | * Release the target session for FC Nexus from fabric module code. | |
1023 | */ | |
1024 | if (sess->se_sess != NULL) | |
1025 | ha->tgt.tgt_ops->free_session(sess); | |
1026 | ||
a6ca8878 AP |
1027 | if (logout_started) { |
1028 | bool traced = false; | |
1029 | ||
6aa7de05 | 1030 | while (!READ_ONCE(sess->logout_completed)) { |
a6ca8878 AP |
1031 | if (!traced) { |
1032 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086, | |
1033 | "%s: waiting for sess %p logout\n", | |
1034 | __func__, sess); | |
1035 | traced = true; | |
1036 | } | |
1037 | msleep(100); | |
1038 | } | |
1039 | ||
726b8548 | 1040 | ql_dbg(ql_dbg_disc, vha, 0xf087, |
9cd883f0 | 1041 | "%s: sess %p logout completed\n", __func__, sess); |
41dc529a QT |
1042 | } |
1043 | ||
1044 | if (sess->logo_ack_needed) { | |
1045 | sess->logo_ack_needed = 0; | |
1046 | qla24xx_async_notify_ack(vha, sess, | |
1047 | (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO); | |
a6ca8878 AP |
1048 | } |
1049 | ||
726b8548 QT |
1050 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1051 | if (sess->se_sess) { | |
1052 | sess->se_sess = NULL; | |
1053 | if (tgt && !IS_SW_RESV_ADDR(sess->d_id)) | |
1054 | tgt->sess_count--; | |
1055 | } | |
1056 | ||
1057 | sess->disc_state = DSC_DELETED; | |
1058 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1059 | sess->deleted = QLA_SESS_DELETED; | |
726b8548 QT |
1060 | |
1061 | if (sess->login_succ && !IS_SW_RESV_ADDR(sess->d_id)) { | |
1062 | vha->fcport_count--; | |
1063 | sess->login_succ = 0; | |
1064 | } | |
1065 | ||
ba743f91 | 1066 | qla2x00_clear_loop_id(sess); |
726b8548 QT |
1067 | |
1068 | if (sess->conflict) { | |
1069 | sess->conflict->login_pause = 0; | |
1070 | sess->conflict = NULL; | |
1071 | if (!test_bit(UNLOADING, &vha->dpc_flags)) | |
1072 | set_bit(RELOGIN_NEEDED, &vha->dpc_flags); | |
1073 | } | |
1074 | ||
b7bd104e | 1075 | { |
5d964837 | 1076 | struct qlt_plogi_ack_t *con = |
b7bd104e | 1077 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]; |
5d964837 | 1078 | struct imm_ntfy_from_isp *iocb; |
48acad09 | 1079 | own = sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]; |
b7bd104e AP |
1080 | |
1081 | if (con) { | |
5d964837 | 1082 | iocb = &con->iocb; |
b7bd104e | 1083 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf099, |
5d964837 QT |
1084 | "se_sess %p / sess %p port %8phC is gone," |
1085 | " %s (ref=%d), releasing PLOGI for %8phC (ref=%d)\n", | |
1086 | sess->se_sess, sess, sess->port_name, | |
1087 | own ? "releasing own PLOGI" : "no own PLOGI pending", | |
1088 | own ? own->ref_count : -1, | |
1089 | iocb->u.isp24.port_name, con->ref_count); | |
b7bd104e | 1090 | qlt_plogi_ack_unref(vha, con); |
726b8548 | 1091 | sess->plogi_link[QLT_PLOGI_LINK_CONFLICT] = NULL; |
b7bd104e AP |
1092 | } else { |
1093 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09a, | |
1094 | "se_sess %p / sess %p port %8phC is gone, %s (ref=%d)\n", | |
1095 | sess->se_sess, sess, sess->port_name, | |
1096 | own ? "releasing own PLOGI" : | |
1097 | "no own PLOGI pending", | |
1098 | own ? own->ref_count : -1); | |
1099 | } | |
1100 | ||
726b8548 QT |
1101 | if (own) { |
1102 | sess->fw_login_state = DSC_LS_PLOGI_PEND; | |
b7bd104e | 1103 | qlt_plogi_ack_unref(vha, own); |
726b8548 QT |
1104 | sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL; |
1105 | } | |
b7bd104e | 1106 | } |
1ae634eb | 1107 | |
5d964837 QT |
1108 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
1109 | ||
2d70c103 | 1110 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001, |
726b8548 QT |
1111 | "Unregistration of sess %p %8phC finished fcp_cnt %d\n", |
1112 | sess, sess->port_name, vha->fcport_count); | |
2d70c103 | 1113 | |
726b8548 | 1114 | if (tgt && (tgt->sess_count == 0)) |
2d70c103 | 1115 | wake_up_all(&tgt->waitQ); |
726b8548 QT |
1116 | |
1117 | if (vha->fcport_count == 0) | |
1118 | wake_up_all(&vha->fcport_waitQ); | |
1119 | ||
41dc529a | 1120 | base_vha = pci_get_drvdata(ha->pdev); |
1ae634eb QT |
1121 | |
1122 | sess->free_pending = 0; | |
1123 | ||
41dc529a QT |
1124 | if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) |
1125 | return; | |
1126 | ||
a4239945 QT |
1127 | if ((!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) { |
1128 | switch (vha->host->active_mode) { | |
1129 | case MODE_INITIATOR: | |
1130 | case MODE_DUAL: | |
1131 | set_bit(RELOGIN_NEEDED, &vha->dpc_flags); | |
1132 | qla2xxx_wake_dpc(vha); | |
1133 | break; | |
1134 | case MODE_TARGET: | |
1135 | default: | |
1136 | /* no-op */ | |
1137 | break; | |
1138 | } | |
726b8548 | 1139 | } |
2d70c103 NB |
1140 | } |
1141 | ||
7560151b | 1142 | /* ha->tgt.sess_lock supposed to be held on entry */ |
5d964837 | 1143 | void qlt_unreg_sess(struct fc_port *sess) |
2d70c103 NB |
1144 | { |
1145 | struct scsi_qla_host *vha = sess->vha; | |
1ae634eb | 1146 | unsigned long flags; |
2d70c103 | 1147 | |
83548fe2 | 1148 | ql_dbg(ql_dbg_disc, sess->vha, 0x210a, |
5d964837 QT |
1149 | "%s sess %p for deletion %8phC\n", |
1150 | __func__, sess, sess->port_name); | |
1151 | ||
1ae634eb QT |
1152 | spin_lock_irqsave(&sess->vha->work_lock, flags); |
1153 | if (sess->free_pending) { | |
1154 | spin_unlock_irqrestore(&sess->vha->work_lock, flags); | |
1155 | return; | |
1156 | } | |
1157 | sess->free_pending = 1; | |
1158 | spin_unlock_irqrestore(&sess->vha->work_lock, flags); | |
1159 | ||
36c78452 QT |
1160 | if (sess->se_sess) |
1161 | vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess); | |
2d70c103 | 1162 | |
23dd98a6 | 1163 | qla2x00_mark_device_lost(vha, sess, 0, 0); |
5d964837 | 1164 | |
a6ca8878 | 1165 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; |
726b8548 QT |
1166 | sess->disc_state = DSC_DELETE_PEND; |
1167 | sess->last_rscn_gen = sess->rscn_gen; | |
1168 | sess->last_login_gen = sess->login_gen; | |
2d70c103 | 1169 | |
9dd9686b DT |
1170 | if (sess->nvme_flag & NVME_FLAG_REGISTERED && |
1171 | !(sess->nvme_flag & NVME_FLAG_DELETING)) { | |
1172 | sess->nvme_flag |= NVME_FLAG_DELETING; | |
a5d42f4c | 1173 | schedule_work(&sess->nvme_del_work); |
9dd9686b DT |
1174 | } else { |
1175 | INIT_WORK(&sess->free_work, qlt_free_session_done); | |
1176 | schedule_work(&sess->free_work); | |
1177 | } | |
2d70c103 | 1178 | } |
5d964837 | 1179 | EXPORT_SYMBOL(qlt_unreg_sess); |
7560151b | 1180 | |
2d70c103 NB |
1181 | static int qlt_reset(struct scsi_qla_host *vha, void *iocb, int mcmd) |
1182 | { | |
1183 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 1184 | struct fc_port *sess = NULL; |
2d70c103 NB |
1185 | uint16_t loop_id; |
1186 | int res = 0; | |
1187 | struct imm_ntfy_from_isp *n = (struct imm_ntfy_from_isp *)iocb; | |
7560151b | 1188 | unsigned long flags; |
2d70c103 NB |
1189 | |
1190 | loop_id = le16_to_cpu(n->u.isp24.nport_handle); | |
1191 | if (loop_id == 0xFFFF) { | |
2d70c103 | 1192 | /* Global event */ |
b2032fd5 | 1193 | atomic_inc(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); |
7560151b | 1194 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
b2032fd5 | 1195 | qlt_clear_tgt_db(vha->vha_tgt.qla_tgt); |
7560151b | 1196 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 1197 | } else { |
7560151b | 1198 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1199 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b | 1200 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1201 | } |
1202 | ||
1203 | ql_dbg(ql_dbg_tgt, vha, 0xe000, | |
1204 | "Using sess for qla_tgt_reset: %p\n", sess); | |
1205 | if (!sess) { | |
1206 | res = -ESRCH; | |
1207 | return res; | |
1208 | } | |
1209 | ||
1210 | ql_dbg(ql_dbg_tgt, vha, 0xe047, | |
7b833558 OK |
1211 | "scsi(%ld): resetting (session %p from port %8phC mcmd %x, " |
1212 | "loop_id %d)\n", vha->host_no, sess, sess->port_name, | |
2d70c103 NB |
1213 | mcmd, loop_id); |
1214 | ||
bb1181c9 | 1215 | return qlt_issue_task_mgmt(sess, 0, mcmd, iocb, QLA24XX_MGMT_SEND_NACK); |
2d70c103 NB |
1216 | } |
1217 | ||
726b8548 QT |
1218 | static void qla24xx_chk_fcp_state(struct fc_port *sess) |
1219 | { | |
7c3f8fd1 | 1220 | if (sess->chip_reset != sess->vha->hw->base_qpair->chip_reset) { |
726b8548 QT |
1221 | sess->logout_on_delete = 0; |
1222 | sess->logo_ack_needed = 0; | |
1223 | sess->fw_login_state = DSC_LS_PORT_UNAVAIL; | |
1224 | sess->scan_state = 0; | |
1225 | } | |
1226 | } | |
1227 | ||
94cff6e1 | 1228 | void qlt_schedule_sess_for_deletion(struct fc_port *sess) |
2d70c103 NB |
1229 | { |
1230 | struct qla_tgt *tgt = sess->tgt; | |
d8630bb9 | 1231 | unsigned long flags; |
cd4ed6b4 | 1232 | u16 sec; |
2d70c103 | 1233 | |
cd4ed6b4 QT |
1234 | switch (sess->disc_state) { |
1235 | case DSC_DELETE_PEND: | |
726b8548 | 1236 | return; |
cd4ed6b4 | 1237 | case DSC_DELETED: |
726b8548 QT |
1238 | if (tgt && tgt->tgt_stop && (tgt->sess_count == 0)) |
1239 | wake_up_all(&tgt->waitQ); | |
1240 | if (sess->vha->fcport_count == 0) | |
1241 | wake_up_all(&sess->vha->fcport_waitQ); | |
1242 | ||
1243 | if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] && | |
1244 | !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) | |
a6ca8878 | 1245 | return; |
cd4ed6b4 QT |
1246 | break; |
1247 | case DSC_UPD_FCPORT: | |
1248 | /* | |
1249 | * This port is not done reporting to upper layer. | |
1250 | * let it finish | |
1251 | */ | |
1252 | sess->next_disc_state = DSC_DELETE_PEND; | |
1253 | sec = jiffies_to_msecs(jiffies - | |
1254 | sess->jiffies_at_registration)/1000; | |
1255 | if (sess->sec_since_registration < sec && sec && !(sec % 5)) { | |
1256 | sess->sec_since_registration = sec; | |
1257 | ql_dbg(ql_dbg_disc, sess->vha, 0xffff, | |
1258 | "%s %8phC : Slow Rport registration(%d Sec)\n", | |
1259 | __func__, sess->port_name, sec); | |
1260 | } | |
1261 | return; | |
1262 | default: | |
1263 | break; | |
a6ca8878 | 1264 | } |
2d70c103 | 1265 | |
49d7bd36 | 1266 | spin_lock_irqsave(&sess->vha->work_lock, flags); |
d8630bb9 | 1267 | if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) { |
49d7bd36 | 1268 | spin_unlock_irqrestore(&sess->vha->work_lock, flags); |
d8630bb9 QT |
1269 | return; |
1270 | } | |
726b8548 | 1271 | sess->deleted = QLA_SESS_DELETION_IN_PROGRESS; |
49d7bd36 | 1272 | spin_unlock_irqrestore(&sess->vha->work_lock, flags); |
d8630bb9 QT |
1273 | |
1274 | sess->disc_state = DSC_DELETE_PEND; | |
1275 | ||
726b8548 | 1276 | qla24xx_chk_fcp_state(sess); |
2d70c103 | 1277 | |
726b8548 | 1278 | ql_dbg(ql_dbg_tgt, sess->vha, 0xe001, |
5c640053 QT |
1279 | "Scheduling sess %p for deletion %8phC\n", |
1280 | sess, sess->port_name); | |
2d70c103 | 1281 | |
a01c77d2 | 1282 | INIT_WORK(&sess->del_work, qla24xx_delete_sess_fn); |
1c6cacf4 | 1283 | WARN_ON(!queue_work(sess->vha->hw->wq, &sess->del_work)); |
726b8548 | 1284 | } |
2d70c103 | 1285 | |
c5701042 | 1286 | static void qlt_clear_tgt_db(struct qla_tgt *tgt) |
2d70c103 | 1287 | { |
5d964837 QT |
1288 | struct fc_port *sess; |
1289 | scsi_qla_host_t *vha = tgt->vha; | |
2d70c103 | 1290 | |
5d964837 QT |
1291 | list_for_each_entry(sess, &vha->vp_fcports, list) { |
1292 | if (sess->se_sess) | |
94cff6e1 | 1293 | qlt_schedule_sess_for_deletion(sess); |
5d964837 | 1294 | } |
2d70c103 NB |
1295 | |
1296 | /* At this point tgt could be already dead */ | |
1297 | } | |
1298 | ||
1299 | static int qla24xx_get_loop_id(struct scsi_qla_host *vha, const uint8_t *s_id, | |
1300 | uint16_t *loop_id) | |
1301 | { | |
1302 | struct qla_hw_data *ha = vha->hw; | |
1303 | dma_addr_t gid_list_dma; | |
1304 | struct gid_list_info *gid_list; | |
1305 | char *id_iter; | |
1306 | int res, rc, i; | |
1307 | uint16_t entries; | |
1308 | ||
1309 | gid_list = dma_alloc_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1310 | &gid_list_dma, GFP_KERNEL); | |
1311 | if (!gid_list) { | |
1312 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf044, | |
1313 | "qla_target(%d): DMA Alloc failed of %u\n", | |
1314 | vha->vp_idx, qla2x00_gid_list_size(ha)); | |
1315 | return -ENOMEM; | |
1316 | } | |
1317 | ||
1318 | /* Get list of logged in devices */ | |
15f30a57 | 1319 | rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries); |
2d70c103 NB |
1320 | if (rc != QLA_SUCCESS) { |
1321 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045, | |
1322 | "qla_target(%d): get_id_list() failed: %x\n", | |
1323 | vha->vp_idx, rc); | |
71cdc079 | 1324 | res = -EBUSY; |
2d70c103 NB |
1325 | goto out_free_id_list; |
1326 | } | |
1327 | ||
1328 | id_iter = (char *)gid_list; | |
71cdc079 | 1329 | res = -ENOENT; |
2d70c103 NB |
1330 | for (i = 0; i < entries; i++) { |
1331 | struct gid_list_info *gid = (struct gid_list_info *)id_iter; | |
1332 | if ((gid->al_pa == s_id[2]) && | |
1333 | (gid->area == s_id[1]) && | |
1334 | (gid->domain == s_id[0])) { | |
1335 | *loop_id = le16_to_cpu(gid->loop_id); | |
1336 | res = 0; | |
1337 | break; | |
1338 | } | |
1339 | id_iter += ha->gid_list_info_size; | |
1340 | } | |
1341 | ||
1342 | out_free_id_list: | |
1343 | dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), | |
1344 | gid_list, gid_list_dma); | |
1345 | return res; | |
1346 | } | |
1347 | ||
2d70c103 NB |
1348 | /* |
1349 | * Adds an extra ref to allow to drop hw lock after adding sess to the list. | |
1350 | * Caller must put it. | |
1351 | */ | |
5d964837 | 1352 | static struct fc_port *qlt_create_sess( |
2d70c103 NB |
1353 | struct scsi_qla_host *vha, |
1354 | fc_port_t *fcport, | |
1355 | bool local) | |
1356 | { | |
1357 | struct qla_hw_data *ha = vha->hw; | |
726b8548 | 1358 | struct fc_port *sess = fcport; |
2d70c103 | 1359 | unsigned long flags; |
2d70c103 | 1360 | |
726b8548 QT |
1361 | if (vha->vha_tgt.qla_tgt->tgt_stop) |
1362 | return NULL; | |
2d70c103 | 1363 | |
726b8548 QT |
1364 | if (fcport->se_sess) { |
1365 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 1366 | ql_dbg(ql_dbg_disc, vha, 0x20f6, |
726b8548 QT |
1367 | "%s: kref_get_unless_zero failed for %8phC\n", |
1368 | __func__, sess->port_name); | |
1369 | return NULL; | |
2d70c103 | 1370 | } |
726b8548 | 1371 | return fcport; |
2d70c103 | 1372 | } |
0e8cd71c | 1373 | sess->tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 1374 | sess->local = local; |
a6ca8878 | 1375 | |
726b8548 QT |
1376 | /* |
1377 | * Under normal circumstances we want to logout from firmware when | |
a6ca8878 AP |
1378 | * session eventually ends and release corresponding nport handle. |
1379 | * In the exception cases (e.g. when new PLOGI is waiting) corresponding | |
726b8548 QT |
1380 | * code will adjust these flags as necessary. |
1381 | */ | |
a6ca8878 AP |
1382 | sess->logout_on_delete = 1; |
1383 | sess->keep_nport_handle = 0; | |
726b8548 | 1384 | sess->logout_completed = 0; |
2d70c103 | 1385 | |
726b8548 QT |
1386 | if (ha->tgt.tgt_ops->check_initiator_node_acl(vha, |
1387 | &fcport->port_name[0], sess) < 0) { | |
83548fe2 | 1388 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf015, |
726b8548 QT |
1389 | "(%d) %8phC check_initiator_node_acl failed\n", |
1390 | vha->vp_idx, fcport->port_name); | |
1391 | return NULL; | |
1392 | } else { | |
1393 | kref_init(&fcport->sess_kref); | |
1394 | /* | |
1395 | * Take an extra reference to ->sess_kref here to handle | |
1396 | * fc_port access across ->tgt.sess_lock reaquire. | |
1397 | */ | |
1398 | if (!kref_get_unless_zero(&sess->sess_kref)) { | |
83548fe2 | 1399 | ql_dbg(ql_dbg_disc, vha, 0x20f7, |
726b8548 QT |
1400 | "%s: kref_get_unless_zero failed for %8phC\n", |
1401 | __func__, sess->port_name); | |
1402 | return NULL; | |
1403 | } | |
2d70c103 | 1404 | |
726b8548 QT |
1405 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
1406 | if (!IS_SW_RESV_ADDR(sess->d_id)) | |
1407 | vha->vha_tgt.qla_tgt->sess_count++; | |
2d70c103 | 1408 | |
726b8548 QT |
1409 | qlt_do_generation_tick(vha, &sess->generation); |
1410 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
1411 | } | |
1412 | ||
1413 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf006, | |
1414 | "Adding sess %p se_sess %p to tgt %p sess_count %d\n", | |
1415 | sess, sess->se_sess, vha->vha_tgt.qla_tgt, | |
1416 | vha->vha_tgt.qla_tgt->sess_count); | |
2d70c103 NB |
1417 | |
1418 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04b, | |
7b833558 OK |
1419 | "qla_target(%d): %ssession for wwn %8phC (loop_id %d, " |
1420 | "s_id %x:%x:%x, confirmed completion %ssupported) added\n", | |
1421 | vha->vp_idx, local ? "local " : "", fcport->port_name, | |
37cacc0a QT |
1422 | fcport->loop_id, sess->d_id.b.domain, sess->d_id.b.area, |
1423 | sess->d_id.b.al_pa, sess->conf_compl_supported ? "" : "not "); | |
2d70c103 NB |
1424 | |
1425 | return sess; | |
1426 | } | |
1427 | ||
df673274 AP |
1428 | /* |
1429 | * max_gen - specifies maximum session generation | |
1430 | * at which this deletion requestion is still valid | |
1431 | */ | |
1432 | void | |
1433 | qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen) | |
2d70c103 | 1434 | { |
0e8cd71c | 1435 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 1436 | struct fc_port *sess = fcport; |
7560151b | 1437 | unsigned long flags; |
2d70c103 NB |
1438 | |
1439 | if (!vha->hw->tgt.tgt_ops) | |
1440 | return; | |
1441 | ||
b2032fd5 | 1442 | if (!tgt) |
2d70c103 NB |
1443 | return; |
1444 | ||
7560151b | 1445 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); |
2d70c103 | 1446 | if (tgt->tgt_stop) { |
7560151b | 1447 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1448 | return; |
1449 | } | |
5d964837 | 1450 | if (!sess->se_sess) { |
7560151b | 1451 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
2d70c103 NB |
1452 | return; |
1453 | } | |
1454 | ||
df673274 | 1455 | if (max_gen - sess->generation < 0) { |
7560151b | 1456 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
df673274 AP |
1457 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf092, |
1458 | "Ignoring stale deletion request for se_sess %p / sess %p" | |
1459 | " for port %8phC, req_gen %d, sess_gen %d\n", | |
1460 | sess->se_sess, sess, sess->port_name, max_gen, | |
1461 | sess->generation); | |
1462 | return; | |
1463 | } | |
1464 | ||
2d70c103 NB |
1465 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess); |
1466 | ||
1467 | sess->local = 1; | |
7560151b | 1468 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); |
1c6cacf4 | 1469 | qlt_schedule_sess_for_deletion(sess); |
2d70c103 NB |
1470 | } |
1471 | ||
1472 | static inline int test_tgt_sess_count(struct qla_tgt *tgt) | |
1473 | { | |
1474 | struct qla_hw_data *ha = tgt->ha; | |
1475 | unsigned long flags; | |
1476 | int res; | |
1477 | /* | |
1478 | * We need to protect against race, when tgt is freed before or | |
1479 | * inside wake_up() | |
1480 | */ | |
726b8548 | 1481 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 1482 | ql_dbg(ql_dbg_tgt, tgt->vha, 0xe002, |
5d964837 QT |
1483 | "tgt %p, sess_count=%d\n", |
1484 | tgt, tgt->sess_count); | |
2d70c103 | 1485 | res = (tgt->sess_count == 0); |
726b8548 | 1486 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
1487 | |
1488 | return res; | |
1489 | } | |
1490 | ||
1491 | /* Called by tcm_qla2xxx configfs code */ | |
3c231bda | 1492 | int qlt_stop_phase1(struct qla_tgt *tgt) |
2d70c103 NB |
1493 | { |
1494 | struct scsi_qla_host *vha = tgt->vha; | |
1495 | struct qla_hw_data *ha = tgt->ha; | |
1496 | unsigned long flags; | |
1497 | ||
b6faaaf7 | 1498 | mutex_lock(&ha->optrom_mutex); |
3c231bda | 1499 | mutex_lock(&qla_tgt_mutex); |
b6faaaf7 | 1500 | |
2d70c103 NB |
1501 | if (tgt->tgt_stop || tgt->tgt_stopped) { |
1502 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04e, | |
1503 | "Already in tgt->tgt_stop or tgt_stopped state\n"); | |
3c231bda | 1504 | mutex_unlock(&qla_tgt_mutex); |
b6faaaf7 | 1505 | mutex_unlock(&ha->optrom_mutex); |
3c231bda | 1506 | return -EPERM; |
2d70c103 NB |
1507 | } |
1508 | ||
3a33dc95 | 1509 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xe003, "Stopping target for host %ld(%p)\n", |
2d70c103 NB |
1510 | vha->host_no, vha); |
1511 | /* | |
1512 | * Mutex needed to sync with qla_tgt_fc_port_[added,deleted]. | |
1513 | * Lock is needed, because we still can get an incoming packet. | |
1514 | */ | |
0e8cd71c | 1515 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
2d70c103 | 1516 | tgt->tgt_stop = 1; |
c5701042 | 1517 | qlt_clear_tgt_db(tgt); |
0e8cd71c | 1518 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
3c231bda | 1519 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 | 1520 | |
2d70c103 NB |
1521 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009, |
1522 | "Waiting for sess works (tgt %p)", tgt); | |
1523 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1524 | while (!list_empty(&tgt->sess_works_list)) { | |
1525 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1526 | flush_scheduled_work(); | |
1527 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1528 | } | |
1529 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1530 | ||
1531 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a, | |
5d964837 | 1532 | "Waiting for tgt %p: sess_count=%d\n", tgt, tgt->sess_count); |
2d70c103 | 1533 | |
b85e0957 | 1534 | wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ); |
2d70c103 NB |
1535 | |
1536 | /* Big hammer */ | |
ead03855 QT |
1537 | if (!ha->flags.host_shutting_down && |
1538 | (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))) | |
2d70c103 NB |
1539 | qlt_disable_vha(vha); |
1540 | ||
1541 | /* Wait for sessions to clear out (just in case) */ | |
b85e0957 | 1542 | wait_event_timeout(tgt->waitQ, test_tgt_sess_count(tgt), 10*HZ); |
b6faaaf7 QT |
1543 | mutex_unlock(&ha->optrom_mutex); |
1544 | ||
3c231bda | 1545 | return 0; |
2d70c103 NB |
1546 | } |
1547 | EXPORT_SYMBOL(qlt_stop_phase1); | |
1548 | ||
1549 | /* Called by tcm_qla2xxx configfs code */ | |
1550 | void qlt_stop_phase2(struct qla_tgt *tgt) | |
1551 | { | |
3a33dc95 | 1552 | scsi_qla_host_t *vha = tgt->vha; |
2d70c103 NB |
1553 | |
1554 | if (tgt->tgt_stopped) { | |
0e8cd71c | 1555 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf04f, |
2d70c103 NB |
1556 | "Already in tgt->tgt_stopped state\n"); |
1557 | dump_stack(); | |
1558 | return; | |
1559 | } | |
3a33dc95 QT |
1560 | if (!tgt->tgt_stop) { |
1561 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00b, | |
1562 | "%s: phase1 stop is not completed\n", __func__); | |
1563 | dump_stack(); | |
1564 | return; | |
1565 | } | |
2d70c103 | 1566 | |
0e8cd71c | 1567 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
2d70c103 NB |
1568 | tgt->tgt_stop = 0; |
1569 | tgt->tgt_stopped = 1; | |
0e8cd71c | 1570 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
2d70c103 | 1571 | |
3a33dc95 | 1572 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00c, "Stop of tgt %p finished\n", |
2d70c103 | 1573 | tgt); |
0645cb83 QT |
1574 | |
1575 | switch (vha->qlini_mode) { | |
1576 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
1577 | vha->flags.online = 1; | |
1578 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
1579 | break; | |
1580 | default: | |
1581 | break; | |
1582 | } | |
2d70c103 NB |
1583 | } |
1584 | EXPORT_SYMBOL(qlt_stop_phase2); | |
1585 | ||
1586 | /* Called from qlt_remove_target() -> qla2x00_remove_one() */ | |
fa492630 | 1587 | static void qlt_release(struct qla_tgt *tgt) |
2d70c103 | 1588 | { |
0e8cd71c | 1589 | scsi_qla_host_t *vha = tgt->vha; |
e326d22a QT |
1590 | void *node; |
1591 | u64 key = 0; | |
1592 | u16 i; | |
1593 | struct qla_qpair_hint *h; | |
bdbe24de | 1594 | struct qla_hw_data *ha = vha->hw; |
2d70c103 | 1595 | |
3a33dc95 QT |
1596 | if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop && |
1597 | !tgt->tgt_stopped) | |
1598 | qlt_stop_phase1(tgt); | |
1599 | ||
0e8cd71c | 1600 | if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped) |
2d70c103 NB |
1601 | qlt_stop_phase2(tgt); |
1602 | ||
e326d22a QT |
1603 | for (i = 0; i < vha->hw->max_qpairs + 1; i++) { |
1604 | unsigned long flags; | |
1605 | ||
1606 | h = &tgt->qphints[i]; | |
1607 | if (h->qpair) { | |
1608 | spin_lock_irqsave(h->qpair->qp_lock_ptr, flags); | |
1609 | list_del(&h->hint_elem); | |
1610 | spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags); | |
1611 | h->qpair = NULL; | |
1612 | } | |
1613 | } | |
1614 | kfree(tgt->qphints); | |
bdbe24de QT |
1615 | mutex_lock(&qla_tgt_mutex); |
1616 | list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry); | |
1617 | mutex_unlock(&qla_tgt_mutex); | |
e326d22a QT |
1618 | |
1619 | btree_for_each_safe64(&tgt->lun_qpair_map, key, node) | |
1620 | btree_remove64(&tgt->lun_qpair_map, key); | |
1621 | ||
1622 | btree_destroy64(&tgt->lun_qpair_map); | |
1623 | ||
3be63b1e SC |
1624 | if (vha->vp_idx) |
1625 | if (ha->tgt.tgt_ops && | |
1626 | ha->tgt.tgt_ops->remove_target && | |
1627 | vha->vha_tgt.target_lport_ptr) | |
1628 | ha->tgt.tgt_ops->remove_target(vha); | |
bdbe24de | 1629 | |
0e8cd71c | 1630 | vha->vha_tgt.qla_tgt = NULL; |
2d70c103 | 1631 | |
0e8cd71c | 1632 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d, |
2d70c103 NB |
1633 | "Release of tgt %p finished\n", tgt); |
1634 | ||
1635 | kfree(tgt); | |
1636 | } | |
1637 | ||
1638 | /* ha->hardware_lock supposed to be held on entry */ | |
1639 | static int qlt_sched_sess_work(struct qla_tgt *tgt, int type, | |
1640 | const void *param, unsigned int param_size) | |
1641 | { | |
1642 | struct qla_tgt_sess_work_param *prm; | |
1643 | unsigned long flags; | |
1644 | ||
1645 | prm = kzalloc(sizeof(*prm), GFP_ATOMIC); | |
1646 | if (!prm) { | |
1647 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf050, | |
1648 | "qla_target(%d): Unable to create session " | |
1649 | "work, command will be refused", 0); | |
1650 | return -ENOMEM; | |
1651 | } | |
1652 | ||
1653 | ql_dbg(ql_dbg_tgt_mgt, tgt->vha, 0xf00e, | |
1654 | "Scheduling work (type %d, prm %p)" | |
1655 | " to find session for param %p (size %d, tgt %p)\n", | |
1656 | type, prm, param, param_size, tgt); | |
1657 | ||
1658 | prm->type = type; | |
1659 | memcpy(&prm->tm_iocb, param, param_size); | |
1660 | ||
1661 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
1662 | list_add_tail(&prm->sess_works_list_entry, &tgt->sess_works_list); | |
1663 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
1664 | ||
1665 | schedule_work(&tgt->sess_work); | |
1666 | ||
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | /* | |
1671 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1672 | */ | |
82de802a | 1673 | static void qlt_send_notify_ack(struct qla_qpair *qpair, |
2d70c103 NB |
1674 | struct imm_ntfy_from_isp *ntfy, |
1675 | uint32_t add_flags, uint16_t resp_code, int resp_code_valid, | |
1676 | uint16_t srr_flags, uint16_t srr_reject_code, uint8_t srr_explan) | |
1677 | { | |
82de802a | 1678 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
1679 | struct qla_hw_data *ha = vha->hw; |
1680 | request_t *pkt; | |
1681 | struct nack_to_isp *nack; | |
1682 | ||
ec7193e2 QT |
1683 | if (!ha->flags.fw_started) |
1684 | return; | |
1685 | ||
2d70c103 NB |
1686 | ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha); |
1687 | ||
82de802a | 1688 | pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL); |
2d70c103 NB |
1689 | if (!pkt) { |
1690 | ql_dbg(ql_dbg_tgt, vha, 0xe049, | |
1691 | "qla_target(%d): %s failed: unable to allocate " | |
1692 | "request packet\n", vha->vp_idx, __func__); | |
1693 | return; | |
1694 | } | |
1695 | ||
0e8cd71c SK |
1696 | if (vha->vha_tgt.qla_tgt != NULL) |
1697 | vha->vha_tgt.qla_tgt->notify_ack_expected++; | |
2d70c103 NB |
1698 | |
1699 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
1700 | pkt->entry_count = 1; | |
1701 | ||
1702 | nack = (struct nack_to_isp *)pkt; | |
1703 | nack->ox_id = ntfy->ox_id; | |
1704 | ||
726b8548 | 1705 | nack->u.isp24.handle = QLA_TGT_SKIP_HANDLE; |
2d70c103 NB |
1706 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; |
1707 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
1708 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
ad950360 | 1709 | cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); |
2d70c103 NB |
1710 | } |
1711 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
1712 | nack->u.isp24.status = ntfy->u.isp24.status; | |
1713 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
aa230bc5 | 1714 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; |
2d70c103 NB |
1715 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; |
1716 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
1717 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
1718 | nack->u.isp24.srr_flags = cpu_to_le16(srr_flags); | |
1719 | nack->u.isp24.srr_reject_code = srr_reject_code; | |
1720 | nack->u.isp24.srr_reject_code_expl = srr_explan; | |
1721 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
1722 | ||
1723 | ql_dbg(ql_dbg_tgt, vha, 0xe005, | |
1724 | "qla_target(%d): Sending 24xx Notify Ack %d\n", | |
1725 | vha->vp_idx, nack->u.isp24.status); | |
1726 | ||
63163e06 HM |
1727 | /* Memory Barrier */ |
1728 | wmb(); | |
82de802a | 1729 | qla2x00_start_iocbs(vha, qpair->req); |
2d70c103 NB |
1730 | } |
1731 | ||
6b0431d6 QT |
1732 | static int qlt_build_abts_resp_iocb(struct qla_tgt_mgmt_cmd *mcmd) |
1733 | { | |
1734 | struct scsi_qla_host *vha = mcmd->vha; | |
1735 | struct qla_hw_data *ha = vha->hw; | |
1736 | struct abts_resp_to_24xx *resp; | |
1737 | uint32_t f_ctl, h; | |
1738 | uint8_t *p; | |
1739 | int rc; | |
1740 | struct abts_recv_from_24xx *abts = &mcmd->orig_iocb.abts; | |
1741 | struct qla_qpair *qpair = mcmd->qpair; | |
1742 | ||
1743 | ql_dbg(ql_dbg_tgt, vha, 0xe006, | |
1744 | "Sending task mgmt ABTS response (ha=%p, status=%x)\n", | |
1745 | ha, mcmd->fc_tm_rsp); | |
1746 | ||
1747 | rc = qlt_check_reserve_free_req(qpair, 1); | |
1748 | if (rc) { | |
1749 | ql_dbg(ql_dbg_tgt, vha, 0xe04a, | |
1750 | "qla_target(%d): %s failed: unable to allocate request packet\n", | |
1751 | vha->vp_idx, __func__); | |
1752 | return -EAGAIN; | |
1753 | } | |
1754 | ||
1755 | resp = (struct abts_resp_to_24xx *)qpair->req->ring_ptr; | |
1756 | memset(resp, 0, sizeof(*resp)); | |
1757 | ||
1758 | h = qlt_make_handle(qpair); | |
1759 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { | |
1760 | /* | |
1761 | * CTIO type 7 from the firmware doesn't provide a way to | |
1762 | * know the initiator's LOOP ID, hence we can't find | |
1763 | * the session and, so, the command. | |
1764 | */ | |
1765 | return -EAGAIN; | |
1766 | } else { | |
1767 | qpair->req->outstanding_cmds[h] = (srb_t *)mcmd; | |
1768 | } | |
1769 | ||
1770 | resp->handle = MAKE_HANDLE(qpair->req->id, h); | |
1771 | resp->entry_type = ABTS_RESP_24XX; | |
1772 | resp->entry_count = 1; | |
1773 | resp->nport_handle = abts->nport_handle; | |
1774 | resp->vp_index = vha->vp_idx; | |
1775 | resp->sof_type = abts->sof_type; | |
1776 | resp->exchange_address = abts->exchange_address; | |
1777 | resp->fcp_hdr_le = abts->fcp_hdr_le; | |
1778 | f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP | | |
1779 | F_CTL_LAST_SEQ | F_CTL_END_SEQ | | |
1780 | F_CTL_SEQ_INITIATIVE); | |
1781 | p = (uint8_t *)&f_ctl; | |
1782 | resp->fcp_hdr_le.f_ctl[0] = *p++; | |
1783 | resp->fcp_hdr_le.f_ctl[1] = *p++; | |
1784 | resp->fcp_hdr_le.f_ctl[2] = *p; | |
1785 | ||
1786 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1787 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1788 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1789 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1790 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1791 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1792 | ||
1793 | resp->exchange_addr_to_abort = abts->exchange_addr_to_abort; | |
1794 | if (mcmd->fc_tm_rsp == FCP_TMF_CMPL) { | |
1795 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC; | |
1796 | resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID; | |
1797 | resp->payload.ba_acct.low_seq_cnt = 0x0000; | |
1798 | resp->payload.ba_acct.high_seq_cnt = 0xFFFF; | |
1799 | resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id; | |
1800 | resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id; | |
1801 | } else { | |
1802 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT; | |
1803 | resp->payload.ba_rjt.reason_code = | |
1804 | BA_RJT_REASON_CODE_UNABLE_TO_PERFORM; | |
1805 | /* Other bytes are zero */ | |
1806 | } | |
1807 | ||
1808 | vha->vha_tgt.qla_tgt->abts_resp_expected++; | |
1809 | ||
1810 | /* Memory Barrier */ | |
1811 | wmb(); | |
1812 | if (qpair->reqq_start_iocbs) | |
1813 | qpair->reqq_start_iocbs(qpair); | |
1814 | else | |
1815 | qla2x00_start_iocbs(vha, qpair->req); | |
1816 | ||
1817 | return rc; | |
1818 | } | |
1819 | ||
2d70c103 NB |
1820 | /* |
1821 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1822 | */ | |
82de802a | 1823 | static void qlt_24xx_send_abts_resp(struct qla_qpair *qpair, |
2d70c103 NB |
1824 | struct abts_recv_from_24xx *abts, uint32_t status, |
1825 | bool ids_reversed) | |
1826 | { | |
82de802a | 1827 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
1828 | struct qla_hw_data *ha = vha->hw; |
1829 | struct abts_resp_to_24xx *resp; | |
1830 | uint32_t f_ctl; | |
1831 | uint8_t *p; | |
1832 | ||
1833 | ql_dbg(ql_dbg_tgt, vha, 0xe006, | |
1834 | "Sending task mgmt ABTS response (ha=%p, atio=%p, status=%x\n", | |
1835 | ha, abts, status); | |
1836 | ||
82de802a QT |
1837 | resp = (struct abts_resp_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, |
1838 | NULL); | |
2d70c103 NB |
1839 | if (!resp) { |
1840 | ql_dbg(ql_dbg_tgt, vha, 0xe04a, | |
1841 | "qla_target(%d): %s failed: unable to allocate " | |
1842 | "request packet", vha->vp_idx, __func__); | |
1843 | return; | |
1844 | } | |
1845 | ||
1846 | resp->entry_type = ABTS_RESP_24XX; | |
6b0431d6 | 1847 | resp->handle = QLA_TGT_SKIP_HANDLE; |
2d70c103 NB |
1848 | resp->entry_count = 1; |
1849 | resp->nport_handle = abts->nport_handle; | |
1850 | resp->vp_index = vha->vp_idx; | |
1851 | resp->sof_type = abts->sof_type; | |
1852 | resp->exchange_address = abts->exchange_address; | |
1853 | resp->fcp_hdr_le = abts->fcp_hdr_le; | |
ad950360 | 1854 | f_ctl = cpu_to_le32(F_CTL_EXCH_CONTEXT_RESP | |
2d70c103 NB |
1855 | F_CTL_LAST_SEQ | F_CTL_END_SEQ | |
1856 | F_CTL_SEQ_INITIATIVE); | |
1857 | p = (uint8_t *)&f_ctl; | |
1858 | resp->fcp_hdr_le.f_ctl[0] = *p++; | |
1859 | resp->fcp_hdr_le.f_ctl[1] = *p++; | |
1860 | resp->fcp_hdr_le.f_ctl[2] = *p; | |
1861 | if (ids_reversed) { | |
1862 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1863 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1864 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1865 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1866 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1867 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1868 | } else { | |
1869 | resp->fcp_hdr_le.d_id[0] = abts->fcp_hdr_le.s_id[0]; | |
1870 | resp->fcp_hdr_le.d_id[1] = abts->fcp_hdr_le.s_id[1]; | |
1871 | resp->fcp_hdr_le.d_id[2] = abts->fcp_hdr_le.s_id[2]; | |
1872 | resp->fcp_hdr_le.s_id[0] = abts->fcp_hdr_le.d_id[0]; | |
1873 | resp->fcp_hdr_le.s_id[1] = abts->fcp_hdr_le.d_id[1]; | |
1874 | resp->fcp_hdr_le.s_id[2] = abts->fcp_hdr_le.d_id[2]; | |
1875 | } | |
1876 | resp->exchange_addr_to_abort = abts->exchange_addr_to_abort; | |
1877 | if (status == FCP_TMF_CMPL) { | |
1878 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_ACC; | |
1879 | resp->payload.ba_acct.seq_id_valid = SEQ_ID_INVALID; | |
1880 | resp->payload.ba_acct.low_seq_cnt = 0x0000; | |
1881 | resp->payload.ba_acct.high_seq_cnt = 0xFFFF; | |
1882 | resp->payload.ba_acct.ox_id = abts->fcp_hdr_le.ox_id; | |
1883 | resp->payload.ba_acct.rx_id = abts->fcp_hdr_le.rx_id; | |
1884 | } else { | |
1885 | resp->fcp_hdr_le.r_ctl = R_CTL_BASIC_LINK_SERV | R_CTL_B_RJT; | |
1886 | resp->payload.ba_rjt.reason_code = | |
1887 | BA_RJT_REASON_CODE_UNABLE_TO_PERFORM; | |
1888 | /* Other bytes are zero */ | |
1889 | } | |
1890 | ||
0e8cd71c | 1891 | vha->vha_tgt.qla_tgt->abts_resp_expected++; |
2d70c103 | 1892 | |
63163e06 HM |
1893 | /* Memory Barrier */ |
1894 | wmb(); | |
8abfa9e2 QT |
1895 | if (qpair->reqq_start_iocbs) |
1896 | qpair->reqq_start_iocbs(qpair); | |
1897 | else | |
1898 | qla2x00_start_iocbs(vha, qpair->req); | |
2d70c103 NB |
1899 | } |
1900 | ||
1901 | /* | |
1902 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
1903 | */ | |
1904 | static void qlt_24xx_retry_term_exchange(struct scsi_qla_host *vha, | |
6b0431d6 | 1905 | struct qla_qpair *qpair, response_t *pkt, struct qla_tgt_mgmt_cmd *mcmd) |
2d70c103 NB |
1906 | { |
1907 | struct ctio7_to_24xx *ctio; | |
0691094f | 1908 | u16 tmp; |
6b0431d6 | 1909 | struct abts_recv_from_24xx *entry; |
2d70c103 | 1910 | |
0691094f | 1911 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs_ready(qpair, NULL); |
2d70c103 NB |
1912 | if (ctio == NULL) { |
1913 | ql_dbg(ql_dbg_tgt, vha, 0xe04b, | |
1914 | "qla_target(%d): %s failed: unable to allocate " | |
1915 | "request packet\n", vha->vp_idx, __func__); | |
1916 | return; | |
1917 | } | |
1918 | ||
6b0431d6 QT |
1919 | if (mcmd) |
1920 | /* abts from remote port */ | |
1921 | entry = &mcmd->orig_iocb.abts; | |
1922 | else | |
1923 | /* abts from this driver. */ | |
1924 | entry = (struct abts_recv_from_24xx *)pkt; | |
1925 | ||
2d70c103 NB |
1926 | /* |
1927 | * We've got on entrance firmware's response on by us generated | |
1928 | * ABTS response. So, in it ID fields are reversed. | |
1929 | */ | |
1930 | ||
1931 | ctio->entry_type = CTIO_TYPE7; | |
1932 | ctio->entry_count = 1; | |
1933 | ctio->nport_handle = entry->nport_handle; | |
1934 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
ad950360 | 1935 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 | 1936 | ctio->vp_index = vha->vp_idx; |
2d70c103 | 1937 | ctio->exchange_addr = entry->exchange_addr_to_abort; |
0691094f | 1938 | tmp = (CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_TERMINATE); |
6b0431d6 QT |
1939 | |
1940 | if (mcmd) { | |
1941 | ctio->initiator_id[0] = entry->fcp_hdr_le.s_id[0]; | |
1942 | ctio->initiator_id[1] = entry->fcp_hdr_le.s_id[1]; | |
1943 | ctio->initiator_id[2] = entry->fcp_hdr_le.s_id[2]; | |
1944 | ||
1945 | if (mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) | |
1946 | tmp |= (mcmd->abort_io_attr << 9); | |
1947 | else if (qpair->retry_term_cnt & 1) | |
1948 | tmp |= (0x4 << 9); | |
1949 | } else { | |
1950 | ctio->initiator_id[0] = entry->fcp_hdr_le.d_id[0]; | |
1951 | ctio->initiator_id[1] = entry->fcp_hdr_le.d_id[1]; | |
1952 | ctio->initiator_id[2] = entry->fcp_hdr_le.d_id[2]; | |
1953 | ||
1954 | if (qpair->retry_term_cnt & 1) | |
1955 | tmp |= (0x4 << 9); | |
1956 | } | |
0691094f | 1957 | ctio->u.status1.flags = cpu_to_le16(tmp); |
6b0431d6 | 1958 | ctio->u.status1.ox_id = entry->fcp_hdr_le.ox_id; |
0691094f | 1959 | |
6b0431d6 QT |
1960 | ql_dbg(ql_dbg_tgt, vha, 0xe007, |
1961 | "Sending retry TERM EXCH CTIO7 flags %04xh oxid %04xh attr valid %x\n", | |
1962 | le16_to_cpu(ctio->u.status1.flags), | |
1963 | le16_to_cpu(ctio->u.status1.ox_id), | |
1964 | (mcmd && mcmd->flags & QLA24XX_MGMT_ABORT_IO_ATTR_VALID) ? 1 : 0); | |
2d70c103 | 1965 | |
63163e06 HM |
1966 | /* Memory Barrier */ |
1967 | wmb(); | |
0691094f QT |
1968 | if (qpair->reqq_start_iocbs) |
1969 | qpair->reqq_start_iocbs(qpair); | |
1970 | else | |
1971 | qla2x00_start_iocbs(vha, qpair->req); | |
2d70c103 | 1972 | |
6b0431d6 QT |
1973 | if (mcmd) |
1974 | qlt_build_abts_resp_iocb(mcmd); | |
1975 | else | |
1976 | qlt_24xx_send_abts_resp(qpair, | |
1977 | (struct abts_recv_from_24xx *)entry, FCP_TMF_CMPL, true); | |
8b2f5ff3 | 1978 | |
8b2f5ff3 SN |
1979 | } |
1980 | ||
1981 | /* drop cmds for the given lun | |
1982 | * XXX only looks for cmds on the port through which lun reset was recieved | |
1983 | * XXX does not go through the list of other port (which may have cmds | |
1984 | * for the same lun) | |
1985 | */ | |
1986 | static void abort_cmds_for_lun(struct scsi_qla_host *vha, | |
f775bd14 | 1987 | u64 lun, uint8_t *s_id) |
8b2f5ff3 SN |
1988 | { |
1989 | struct qla_tgt_sess_op *op; | |
1990 | struct qla_tgt_cmd *cmd; | |
1991 | uint32_t key; | |
8b631d87 | 1992 | unsigned long flags; |
8b2f5ff3 SN |
1993 | |
1994 | key = sid_to_key(s_id); | |
8b631d87 | 1995 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
1996 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
1997 | uint32_t op_key; | |
f775bd14 | 1998 | u64 op_lun; |
8b2f5ff3 SN |
1999 | |
2000 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
2001 | op_lun = scsilun_to_int( | |
2002 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
2003 | if (op_key == key && op_lun == lun) | |
2004 | op->aborted = true; | |
2005 | } | |
41dc529a QT |
2006 | |
2007 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
2008 | uint32_t op_key; | |
2009 | u64 op_lun; | |
2010 | ||
2011 | op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
2012 | op_lun = scsilun_to_int( | |
2013 | (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); | |
2014 | if (op_key == key && op_lun == lun) | |
2015 | op->aborted = true; | |
2016 | } | |
2017 | ||
8b2f5ff3 SN |
2018 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
2019 | uint32_t cmd_key; | |
f775bd14 | 2020 | u64 cmd_lun; |
8b2f5ff3 SN |
2021 | |
2022 | cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
2023 | cmd_lun = scsilun_to_int( | |
2024 | (struct scsi_lun *)&cmd->atio.u.isp24.fcp_cmnd.lun); | |
2025 | if (cmd_key == key && cmd_lun == lun) | |
193b50b9 | 2026 | cmd->aborted = 1; |
8b2f5ff3 | 2027 | } |
8b631d87 | 2028 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 SN |
2029 | } |
2030 | ||
84905dfe QT |
2031 | static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha, |
2032 | uint64_t unpacked_lun) | |
2033 | { | |
2034 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
2035 | struct qla_qpair_hint *h = NULL; | |
2036 | ||
2037 | if (vha->flags.qpairs_available) { | |
2038 | h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun); | |
2039 | if (!h) | |
2040 | h = &tgt->qphints[0]; | |
2041 | } else { | |
2042 | h = &tgt->qphints[0]; | |
2043 | } | |
2044 | ||
2045 | return h; | |
2046 | } | |
2047 | ||
2048 | static void qlt_do_tmr_work(struct work_struct *work) | |
2049 | { | |
2050 | struct qla_tgt_mgmt_cmd *mcmd = | |
2051 | container_of(work, struct qla_tgt_mgmt_cmd, work); | |
2052 | struct qla_hw_data *ha = mcmd->vha->hw; | |
2053 | int rc = EIO; | |
2054 | uint32_t tag; | |
2055 | unsigned long flags; | |
2056 | ||
2057 | switch (mcmd->tmr_func) { | |
2058 | case QLA_TGT_ABTS: | |
2059 | tag = mcmd->orig_iocb.abts.exchange_addr_to_abort; | |
2060 | break; | |
2061 | default: | |
2062 | tag = 0; | |
2063 | break; | |
2064 | } | |
2065 | ||
2066 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun, | |
2067 | mcmd->tmr_func, tag); | |
2068 | ||
2069 | if (rc != 0) { | |
2070 | spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags); | |
2071 | switch (mcmd->tmr_func) { | |
2072 | case QLA_TGT_ABTS: | |
6b0431d6 QT |
2073 | mcmd->fc_tm_rsp = FCP_TMF_REJECTED; |
2074 | qlt_build_abts_resp_iocb(mcmd); | |
84905dfe QT |
2075 | break; |
2076 | case QLA_TGT_LUN_RESET: | |
2077 | case QLA_TGT_CLEAR_TS: | |
2078 | case QLA_TGT_ABORT_TS: | |
2079 | case QLA_TGT_CLEAR_ACA: | |
2080 | case QLA_TGT_TARGET_RESET: | |
2081 | qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio, | |
2082 | qla_sam_status); | |
2083 | break; | |
2084 | ||
2085 | case QLA_TGT_ABORT_ALL: | |
2086 | case QLA_TGT_NEXUS_LOSS_SESS: | |
2087 | case QLA_TGT_NEXUS_LOSS: | |
2088 | qlt_send_notify_ack(mcmd->qpair, | |
2089 | &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0); | |
2090 | break; | |
2091 | } | |
2092 | spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags); | |
2093 | ||
2094 | ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052, | |
2095 | "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n", | |
2096 | mcmd->vha->vp_idx, rc); | |
2097 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
2098 | } | |
2099 | } | |
2100 | ||
2d70c103 NB |
2101 | /* ha->hardware_lock supposed to be held on entry */ |
2102 | static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
5d964837 | 2103 | struct abts_recv_from_24xx *abts, struct fc_port *sess) |
2d70c103 NB |
2104 | { |
2105 | struct qla_hw_data *ha = vha->hw; | |
2106 | struct qla_tgt_mgmt_cmd *mcmd; | |
84905dfe | 2107 | struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0]; |
06e97b48 | 2108 | |
2d70c103 NB |
2109 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f, |
2110 | "qla_target(%d): task abort (tag=%d)\n", | |
2111 | vha->vp_idx, abts->exchange_addr_to_abort); | |
2112 | ||
2113 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
2114 | if (mcmd == NULL) { | |
2115 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf051, | |
2116 | "qla_target(%d): %s: Allocation of ABORT cmd failed", | |
2117 | vha->vp_idx, __func__); | |
2118 | return -ENOMEM; | |
2119 | } | |
2120 | memset(mcmd, 0, sizeof(*mcmd)); | |
6b0431d6 | 2121 | mcmd->cmd_type = TYPE_TGT_TMCMD; |
2d70c103 NB |
2122 | mcmd->sess = sess; |
2123 | memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts)); | |
7c3f8fd1 | 2124 | mcmd->reset_count = ha->base_qpair->chip_reset; |
be92fc3f | 2125 | mcmd->tmr_func = QLA_TGT_ABTS; |
84905dfe | 2126 | mcmd->qpair = h->qpair; |
72fcd4eb | 2127 | mcmd->vha = vha; |
2d70c103 | 2128 | |
eb5ae233 NB |
2129 | /* |
2130 | * LUN is looked up by target-core internally based on the passed | |
2131 | * abts->exchange_addr_to_abort tag. | |
2132 | */ | |
84905dfe QT |
2133 | mcmd->se_cmd.cpuid = h->cpuid; |
2134 | ||
2135 | if (ha->tgt.tgt_ops->find_cmd_by_tag) { | |
2136 | struct qla_tgt_cmd *abort_cmd; | |
2137 | ||
2138 | abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess, | |
2139 | abts->exchange_addr_to_abort); | |
2140 | if (abort_cmd && abort_cmd->qpair) { | |
2141 | mcmd->qpair = abort_cmd->qpair; | |
2142 | mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid; | |
6b0431d6 QT |
2143 | mcmd->abort_io_attr = abort_cmd->atio.u.isp24.attr; |
2144 | mcmd->flags = QLA24XX_MGMT_ABORT_IO_ATTR_VALID; | |
84905dfe | 2145 | } |
2d70c103 NB |
2146 | } |
2147 | ||
84905dfe QT |
2148 | INIT_WORK(&mcmd->work, qlt_do_tmr_work); |
2149 | queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work); | |
2150 | ||
2d70c103 NB |
2151 | return 0; |
2152 | } | |
2153 | ||
2154 | /* | |
2155 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
2156 | */ | |
2157 | static void qlt_24xx_handle_abts(struct scsi_qla_host *vha, | |
2158 | struct abts_recv_from_24xx *abts) | |
2159 | { | |
2160 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 2161 | struct fc_port *sess; |
2d70c103 NB |
2162 | uint32_t tag = abts->exchange_addr_to_abort; |
2163 | uint8_t s_id[3]; | |
2164 | int rc; | |
7560151b | 2165 | unsigned long flags; |
2d70c103 NB |
2166 | |
2167 | if (le32_to_cpu(abts->fcp_hdr_le.parameter) & ABTS_PARAM_ABORT_SEQ) { | |
2168 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf053, | |
2169 | "qla_target(%d): ABTS: Abort Sequence not " | |
2170 | "supported\n", vha->vp_idx); | |
82de802a QT |
2171 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
2172 | false); | |
2d70c103 NB |
2173 | return; |
2174 | } | |
2175 | ||
2176 | if (tag == ATIO_EXCHANGE_ADDRESS_UNKNOWN) { | |
2177 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf010, | |
2178 | "qla_target(%d): ABTS: Unknown Exchange " | |
2179 | "Address received\n", vha->vp_idx); | |
82de802a QT |
2180 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
2181 | false); | |
2d70c103 NB |
2182 | return; |
2183 | } | |
2184 | ||
2185 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf011, | |
2186 | "qla_target(%d): task abort (s_id=%x:%x:%x, " | |
2187 | "tag=%d, param=%x)\n", vha->vp_idx, abts->fcp_hdr_le.s_id[2], | |
2188 | abts->fcp_hdr_le.s_id[1], abts->fcp_hdr_le.s_id[0], tag, | |
2189 | le32_to_cpu(abts->fcp_hdr_le.parameter)); | |
2190 | ||
2191 | s_id[0] = abts->fcp_hdr_le.s_id[2]; | |
2192 | s_id[1] = abts->fcp_hdr_le.s_id[1]; | |
2193 | s_id[2] = abts->fcp_hdr_le.s_id[0]; | |
2194 | ||
7560151b | 2195 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
2196 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); |
2197 | if (!sess) { | |
2198 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012, | |
03fea736 | 2199 | "qla_target(%d): task abort for non-existent session\n", |
2d70c103 | 2200 | vha->vp_idx); |
7560151b QT |
2201 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2202 | ||
fb35265b QT |
2203 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
2204 | false); | |
2d70c103 NB |
2205 | return; |
2206 | } | |
7560151b QT |
2207 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2208 | ||
2d70c103 | 2209 | |
726b8548 | 2210 | if (sess->deleted) { |
82de802a QT |
2211 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
2212 | false); | |
e52a8b45 AP |
2213 | return; |
2214 | } | |
2215 | ||
2d70c103 NB |
2216 | rc = __qlt_24xx_handle_abts(vha, abts, sess); |
2217 | if (rc != 0) { | |
2218 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf054, | |
2219 | "qla_target(%d): __qlt_24xx_handle_abts() failed: %d\n", | |
2220 | vha->vp_idx, rc); | |
82de802a QT |
2221 | qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED, |
2222 | false); | |
2d70c103 NB |
2223 | return; |
2224 | } | |
2225 | } | |
2226 | ||
2227 | /* | |
2228 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
2229 | */ | |
82de802a | 2230 | static void qlt_24xx_send_task_mgmt_ctio(struct qla_qpair *qpair, |
2d70c103 NB |
2231 | struct qla_tgt_mgmt_cmd *mcmd, uint32_t resp_code) |
2232 | { | |
72fcd4eb | 2233 | struct scsi_qla_host *ha = mcmd->vha; |
2d70c103 NB |
2234 | struct atio_from_isp *atio = &mcmd->orig_iocb.atio; |
2235 | struct ctio7_to_24xx *ctio; | |
33a5fcee | 2236 | uint16_t temp; |
2d70c103 NB |
2237 | |
2238 | ql_dbg(ql_dbg_tgt, ha, 0xe008, | |
2239 | "Sending task mgmt CTIO7 (ha=%p, atio=%p, resp_code=%x\n", | |
2240 | ha, atio, resp_code); | |
2241 | ||
2d70c103 | 2242 | |
82de802a | 2243 | ctio = (struct ctio7_to_24xx *)__qla2x00_alloc_iocbs(qpair, NULL); |
2d70c103 NB |
2244 | if (ctio == NULL) { |
2245 | ql_dbg(ql_dbg_tgt, ha, 0xe04c, | |
2246 | "qla_target(%d): %s failed: unable to allocate " | |
2247 | "request packet\n", ha->vp_idx, __func__); | |
2248 | return; | |
2249 | } | |
2250 | ||
2251 | ctio->entry_type = CTIO_TYPE7; | |
2252 | ctio->entry_count = 1; | |
2253 | ctio->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
2254 | ctio->nport_handle = mcmd->sess->loop_id; | |
ad950360 | 2255 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2256 | ctio->vp_index = ha->vp_idx; |
2257 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2258 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2259 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2260 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2261 | temp = (atio->u.isp24.attr << 9)| |
2262 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS; | |
2263 | ctio->u.status1.flags = cpu_to_le16(temp); | |
33a5fcee QT |
2264 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2265 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 | 2266 | ctio->u.status1.scsi_status = |
ad950360 BVA |
2267 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID); |
2268 | ctio->u.status1.response_len = cpu_to_le16(8); | |
e4b11b89 | 2269 | ctio->u.status1.sense_data[0] = resp_code; |
2d70c103 | 2270 | |
63163e06 HM |
2271 | /* Memory Barrier */ |
2272 | wmb(); | |
8abfa9e2 QT |
2273 | if (qpair->reqq_start_iocbs) |
2274 | qpair->reqq_start_iocbs(qpair); | |
2275 | else | |
2276 | qla2x00_start_iocbs(ha, qpair->req); | |
2d70c103 NB |
2277 | } |
2278 | ||
2279 | void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) | |
2280 | { | |
2281 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
2282 | } | |
2283 | EXPORT_SYMBOL(qlt_free_mcmd); | |
2284 | ||
be25152c QT |
2285 | /* |
2286 | * ha->hardware_lock supposed to be held on entry. Might drop it, then | |
2287 | * reacquire | |
2288 | */ | |
8abfa9e2 | 2289 | void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd, |
be25152c QT |
2290 | uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq) |
2291 | { | |
2292 | struct atio_from_isp *atio = &cmd->atio; | |
2293 | struct ctio7_to_24xx *ctio; | |
2294 | uint16_t temp; | |
8abfa9e2 | 2295 | struct scsi_qla_host *vha = cmd->vha; |
be25152c QT |
2296 | |
2297 | ql_dbg(ql_dbg_tgt_dif, vha, 0x3066, | |
2298 | "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, " | |
2299 | "sense_key=%02x, asc=%02x, ascq=%02x", | |
2300 | vha, atio, scsi_status, sense_key, asc, ascq); | |
2301 | ||
2302 | ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL); | |
2303 | if (!ctio) { | |
2304 | ql_dbg(ql_dbg_async, vha, 0x3067, | |
2305 | "qla2x00t(%ld): %s failed: unable to allocate request packet", | |
2306 | vha->host_no, __func__); | |
2307 | goto out; | |
2308 | } | |
2309 | ||
2310 | ctio->entry_type = CTIO_TYPE7; | |
2311 | ctio->entry_count = 1; | |
2312 | ctio->handle = QLA_TGT_SKIP_HANDLE; | |
2313 | ctio->nport_handle = cmd->sess->loop_id; | |
2314 | ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); | |
2315 | ctio->vp_index = vha->vp_idx; | |
2316 | ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
2317 | ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2318 | ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2319 | ctio->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2320 | temp = (atio->u.isp24.attr << 9) | |
2321 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS; | |
2322 | ctio->u.status1.flags = cpu_to_le16(temp); | |
be25152c QT |
2323 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2324 | ctio->u.status1.ox_id = cpu_to_le16(temp); | |
2325 | ctio->u.status1.scsi_status = | |
2326 | cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status); | |
2327 | ctio->u.status1.response_len = cpu_to_le16(18); | |
2328 | ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio)); | |
2329 | ||
2330 | if (ctio->u.status1.residual != 0) | |
2331 | ctio->u.status1.scsi_status |= | |
2332 | cpu_to_le16(SS_RESIDUAL_UNDER); | |
2333 | ||
2334 | /* Response code and sense key */ | |
2335 | put_unaligned_le32(((0x70 << 24) | (sense_key << 8)), | |
2336 | (&ctio->u.status1.sense_data)[0]); | |
2337 | /* Additional sense length */ | |
2338 | put_unaligned_le32(0x0a, (&ctio->u.status1.sense_data)[1]); | |
2339 | /* ASC and ASCQ */ | |
2340 | put_unaligned_le32(((asc << 24) | (ascq << 16)), | |
2341 | (&ctio->u.status1.sense_data)[3]); | |
2342 | ||
2343 | /* Memory Barrier */ | |
2344 | wmb(); | |
2345 | ||
8abfa9e2 QT |
2346 | if (qpair->reqq_start_iocbs) |
2347 | qpair->reqq_start_iocbs(qpair); | |
2348 | else | |
2349 | qla2x00_start_iocbs(vha, qpair->req); | |
2350 | ||
be25152c QT |
2351 | out: |
2352 | return; | |
2353 | } | |
2354 | ||
2d70c103 NB |
2355 | /* callback from target fabric module code */ |
2356 | void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd) | |
2357 | { | |
2358 | struct scsi_qla_host *vha = mcmd->sess->vha; | |
2359 | struct qla_hw_data *ha = vha->hw; | |
2360 | unsigned long flags; | |
82de802a | 2361 | struct qla_qpair *qpair = mcmd->qpair; |
6b0431d6 | 2362 | bool free_mcmd = true; |
2d70c103 NB |
2363 | |
2364 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf013, | |
2365 | "TM response mcmd (%p) status %#x state %#x", | |
2366 | mcmd, mcmd->fc_tm_rsp, mcmd->flags); | |
2367 | ||
82de802a | 2368 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
b6a029e1 | 2369 | |
7c3f8fd1 | 2370 | if (!vha->flags.online || mcmd->reset_count != qpair->chip_reset) { |
b6a029e1 | 2371 | /* |
3bb67df5 | 2372 | * Either the port is not online or this request was from |
b6a029e1 AE |
2373 | * previous life, just abort the processing. |
2374 | */ | |
2375 | ql_dbg(ql_dbg_async, vha, 0xe100, | |
3bb67df5 DKU |
2376 | "RESET-TMR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
2377 | vha->flags.online, qla2x00_reset_active(vha), | |
7c3f8fd1 | 2378 | mcmd->reset_count, qpair->chip_reset); |
b6a029e1 | 2379 | ha->tgt.tgt_ops->free_mcmd(mcmd); |
82de802a | 2380 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
b6a029e1 AE |
2381 | return; |
2382 | } | |
2383 | ||
726b8548 | 2384 | if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) { |
8837aa8b BVA |
2385 | switch (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode) { |
2386 | case ELS_LOGO: | |
2387 | case ELS_PRLO: | |
2388 | case ELS_TPRLO: | |
83548fe2 | 2389 | ql_dbg(ql_dbg_disc, vha, 0x2106, |
726b8548 QT |
2390 | "TM response logo %phC status %#x state %#x", |
2391 | mcmd->sess->port_name, mcmd->fc_tm_rsp, | |
2392 | mcmd->flags); | |
d8630bb9 | 2393 | qlt_schedule_sess_for_deletion(mcmd->sess); |
8837aa8b BVA |
2394 | break; |
2395 | default: | |
82de802a QT |
2396 | qlt_send_notify_ack(vha->hw->base_qpair, |
2397 | &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0); | |
8837aa8b | 2398 | break; |
726b8548 QT |
2399 | } |
2400 | } else { | |
6b0431d6 QT |
2401 | if (mcmd->orig_iocb.atio.u.raw.entry_type == ABTS_RECV_24XX) { |
2402 | qlt_build_abts_resp_iocb(mcmd); | |
2403 | free_mcmd = false; | |
2404 | } else | |
82de802a | 2405 | qlt_24xx_send_task_mgmt_ctio(qpair, mcmd, |
2d70c103 NB |
2406 | mcmd->fc_tm_rsp); |
2407 | } | |
2408 | /* | |
2409 | * Make the callback for ->free_mcmd() to queue_work() and invoke | |
2410 | * target_put_sess_cmd() to drop cmd_kref to 1. The final | |
2411 | * target_put_sess_cmd() call will be made from TFO->check_stop_free() | |
2412 | * -> tcm_qla2xxx_check_stop_free() to release the TMR associated se_cmd | |
2413 | * descriptor after TFO->queue_tm_rsp() -> tcm_qla2xxx_queue_tm_rsp() -> | |
2414 | * qlt_xmit_tm_rsp() returns here.. | |
2415 | */ | |
6b0431d6 QT |
2416 | if (free_mcmd) |
2417 | ha->tgt.tgt_ops->free_mcmd(mcmd); | |
2418 | ||
82de802a | 2419 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
2420 | } |
2421 | EXPORT_SYMBOL(qlt_xmit_tm_rsp); | |
2422 | ||
2423 | /* No locks */ | |
2424 | static int qlt_pci_map_calc_cnt(struct qla_tgt_prm *prm) | |
2425 | { | |
2426 | struct qla_tgt_cmd *cmd = prm->cmd; | |
2427 | ||
2428 | BUG_ON(cmd->sg_cnt == 0); | |
2429 | ||
2430 | prm->sg = (struct scatterlist *)cmd->sg; | |
e7d0bb77 | 2431 | prm->seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, cmd->sg, |
2d70c103 NB |
2432 | cmd->sg_cnt, cmd->dma_data_direction); |
2433 | if (unlikely(prm->seg_cnt == 0)) | |
2434 | goto out_err; | |
2435 | ||
2436 | prm->cmd->sg_mapped = 1; | |
2437 | ||
f83adb61 QT |
2438 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) { |
2439 | /* | |
2440 | * If greater than four sg entries then we need to allocate | |
2441 | * the continuation entries | |
2442 | */ | |
b5399f7d | 2443 | if (prm->seg_cnt > QLA_TGT_DATASEGS_PER_CMD_24XX) |
f83adb61 | 2444 | prm->req_cnt += DIV_ROUND_UP(prm->seg_cnt - |
b5399f7d QT |
2445 | QLA_TGT_DATASEGS_PER_CMD_24XX, |
2446 | QLA_TGT_DATASEGS_PER_CONT_24XX); | |
f83adb61 QT |
2447 | } else { |
2448 | /* DIF */ | |
2449 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2450 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2451 | prm->seg_cnt = DIV_ROUND_UP(cmd->bufflen, cmd->blk_sz); | |
2452 | prm->tot_dsds = prm->seg_cnt; | |
2453 | } else | |
2454 | prm->tot_dsds = prm->seg_cnt; | |
2455 | ||
2456 | if (cmd->prot_sg_cnt) { | |
2457 | prm->prot_sg = cmd->prot_sg; | |
e7d0bb77 | 2458 | prm->prot_seg_cnt = dma_map_sg(&cmd->qpair->pdev->dev, |
f83adb61 QT |
2459 | cmd->prot_sg, cmd->prot_sg_cnt, |
2460 | cmd->dma_data_direction); | |
2461 | if (unlikely(prm->prot_seg_cnt == 0)) | |
2462 | goto out_err; | |
2463 | ||
2464 | if ((cmd->se_cmd.prot_op == TARGET_PROT_DIN_INSERT) || | |
2465 | (cmd->se_cmd.prot_op == TARGET_PROT_DOUT_STRIP)) { | |
2466 | /* Dif Bundling not support here */ | |
2467 | prm->prot_seg_cnt = DIV_ROUND_UP(cmd->bufflen, | |
2468 | cmd->blk_sz); | |
2469 | prm->tot_dsds += prm->prot_seg_cnt; | |
2470 | } else | |
2471 | prm->tot_dsds += prm->prot_seg_cnt; | |
2472 | } | |
2473 | } | |
2d70c103 | 2474 | |
2d70c103 NB |
2475 | return 0; |
2476 | ||
2477 | out_err: | |
22d84726 | 2478 | ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe04d, |
2d70c103 NB |
2479 | "qla_target(%d): PCI mapping failed: sg_cnt=%d", |
2480 | 0, prm->cmd->sg_cnt); | |
2481 | return -1; | |
2482 | } | |
2483 | ||
f9b6721a | 2484 | static void qlt_unmap_sg(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) |
2d70c103 | 2485 | { |
8abfa9e2 QT |
2486 | struct qla_hw_data *ha; |
2487 | struct qla_qpair *qpair; | |
f9b6721a JE |
2488 | if (!cmd->sg_mapped) |
2489 | return; | |
2490 | ||
8abfa9e2 QT |
2491 | qpair = cmd->qpair; |
2492 | ||
e7d0bb77 | 2493 | dma_unmap_sg(&qpair->pdev->dev, cmd->sg, cmd->sg_cnt, |
8abfa9e2 | 2494 | cmd->dma_data_direction); |
2d70c103 | 2495 | cmd->sg_mapped = 0; |
f83adb61 QT |
2496 | |
2497 | if (cmd->prot_sg_cnt) | |
e7d0bb77 | 2498 | dma_unmap_sg(&qpair->pdev->dev, cmd->prot_sg, cmd->prot_sg_cnt, |
f83adb61 QT |
2499 | cmd->dma_data_direction); |
2500 | ||
d5ff0eed JC |
2501 | if (!cmd->ctx) |
2502 | return; | |
8abfa9e2 | 2503 | ha = vha->hw; |
f83adb61 | 2504 | if (cmd->ctx_dsd_alloced) |
d5ff0eed | 2505 | qla2x00_clean_dsd_pool(ha, cmd->ctx); |
f83adb61 | 2506 | |
d5ff0eed | 2507 | dma_pool_free(ha->dl_dma_pool, cmd->ctx, cmd->ctx->crc_ctx_dma); |
2d70c103 NB |
2508 | } |
2509 | ||
82de802a | 2510 | static int qlt_check_reserve_free_req(struct qla_qpair *qpair, |
2d70c103 NB |
2511 | uint32_t req_cnt) |
2512 | { | |
d63b328f | 2513 | uint32_t cnt; |
82de802a | 2514 | struct req_que *req = qpair->req; |
2d70c103 | 2515 | |
82de802a | 2516 | if (req->cnt < (req_cnt + 2)) { |
af7bb382 QT |
2517 | cnt = (uint16_t)(qpair->use_shadow_reg ? *req->out_ptr : |
2518 | RD_REG_DWORD_RELAXED(req->req_q_out)); | |
2d70c103 | 2519 | |
82de802a QT |
2520 | if (req->ring_index < cnt) |
2521 | req->cnt = cnt - req->ring_index; | |
2d70c103 | 2522 | else |
82de802a | 2523 | req->cnt = req->length - (req->ring_index - cnt); |
2d70c103 | 2524 | |
82de802a | 2525 | if (unlikely(req->cnt < (req_cnt + 2))) |
bc7095a9 | 2526 | return -EAGAIN; |
2d70c103 | 2527 | } |
bc7095a9 | 2528 | |
82de802a | 2529 | req->cnt -= req_cnt; |
2d70c103 NB |
2530 | |
2531 | return 0; | |
2532 | } | |
2533 | ||
2534 | /* | |
2535 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
2536 | */ | |
82de802a | 2537 | static inline void *qlt_get_req_pkt(struct req_que *req) |
2d70c103 NB |
2538 | { |
2539 | /* Adjust ring index. */ | |
82de802a QT |
2540 | req->ring_index++; |
2541 | if (req->ring_index == req->length) { | |
2542 | req->ring_index = 0; | |
2543 | req->ring_ptr = req->ring; | |
2d70c103 | 2544 | } else { |
82de802a | 2545 | req->ring_ptr++; |
2d70c103 | 2546 | } |
82de802a | 2547 | return (cont_entry_t *)req->ring_ptr; |
2d70c103 NB |
2548 | } |
2549 | ||
2550 | /* ha->hardware_lock supposed to be held on entry */ | |
82de802a | 2551 | static inline uint32_t qlt_make_handle(struct qla_qpair *qpair) |
2d70c103 | 2552 | { |
2d70c103 | 2553 | uint32_t h; |
c5419e26 QT |
2554 | int index; |
2555 | uint8_t found = 0; | |
82de802a | 2556 | struct req_que *req = qpair->req; |
c5419e26 QT |
2557 | |
2558 | h = req->current_outstanding_cmd; | |
2d70c103 | 2559 | |
c5419e26 QT |
2560 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
2561 | h++; | |
2562 | if (h == req->num_outstanding_cmds) | |
2563 | h = 1; | |
2564 | ||
2565 | if (h == QLA_TGT_SKIP_HANDLE) | |
2566 | continue; | |
2567 | ||
2568 | if (!req->outstanding_cmds[h]) { | |
2569 | found = 1; | |
2d70c103 NB |
2570 | break; |
2571 | } | |
c5419e26 | 2572 | } |
2d70c103 | 2573 | |
c5419e26 QT |
2574 | if (found) { |
2575 | req->current_outstanding_cmd = h; | |
2576 | } else { | |
8abfa9e2 QT |
2577 | ql_dbg(ql_dbg_io, qpair->vha, 0x305b, |
2578 | "qla_target(%d): Ran out of empty cmd slots\n", | |
2579 | qpair->vha->vp_idx); | |
c5419e26 QT |
2580 | h = QLA_TGT_NULL_HANDLE; |
2581 | } | |
2d70c103 NB |
2582 | |
2583 | return h; | |
2584 | } | |
2585 | ||
2586 | /* ha->hardware_lock supposed to be held on entry */ | |
82de802a QT |
2587 | static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair, |
2588 | struct qla_tgt_prm *prm) | |
2d70c103 NB |
2589 | { |
2590 | uint32_t h; | |
2591 | struct ctio7_to_24xx *pkt; | |
2d70c103 | 2592 | struct atio_from_isp *atio = &prm->cmd->atio; |
33a5fcee | 2593 | uint16_t temp; |
2d70c103 | 2594 | |
82de802a | 2595 | pkt = (struct ctio7_to_24xx *)qpair->req->ring_ptr; |
2d70c103 NB |
2596 | prm->pkt = pkt; |
2597 | memset(pkt, 0, sizeof(*pkt)); | |
2598 | ||
2599 | pkt->entry_type = CTIO_TYPE7; | |
2600 | pkt->entry_count = (uint8_t)prm->req_cnt; | |
22d84726 | 2601 | pkt->vp_index = prm->cmd->vp_idx; |
2d70c103 | 2602 | |
82de802a | 2603 | h = qlt_make_handle(qpair); |
2d70c103 NB |
2604 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { |
2605 | /* | |
2606 | * CTIO type 7 from the firmware doesn't provide a way to | |
2607 | * know the initiator's LOOP ID, hence we can't find | |
2608 | * the session and, so, the command. | |
2609 | */ | |
2610 | return -EAGAIN; | |
e326d22a QT |
2611 | } else |
2612 | qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd; | |
2d70c103 | 2613 | |
82de802a QT |
2614 | pkt->handle = MAKE_HANDLE(qpair->req->id, h); |
2615 | pkt->handle |= CTIO_COMPLETION_HANDLE_MARK; | |
2616 | pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id); | |
ad950360 | 2617 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
2618 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
2619 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
2620 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
2621 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
2622 | temp = atio->u.isp24.attr << 9; |
2623 | pkt->u.status0.flags |= cpu_to_le16(temp); | |
33a5fcee QT |
2624 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
2625 | pkt->u.status0.ox_id = cpu_to_le16(temp); | |
2d70c103 NB |
2626 | pkt->u.status0.relative_offset = cpu_to_le32(prm->cmd->offset); |
2627 | ||
2d70c103 NB |
2628 | return 0; |
2629 | } | |
2630 | ||
2631 | /* | |
2632 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2633 | * that there is sufficient amount of request entries to not drop it. | |
2634 | */ | |
32d29b4c | 2635 | static void qlt_load_cont_data_segments(struct qla_tgt_prm *prm) |
2d70c103 NB |
2636 | { |
2637 | int cnt; | |
2638 | uint32_t *dword_ptr; | |
2d70c103 NB |
2639 | |
2640 | /* Build continuation packets */ | |
2641 | while (prm->seg_cnt > 0) { | |
2642 | cont_a64_entry_t *cont_pkt64 = | |
82de802a QT |
2643 | (cont_a64_entry_t *)qlt_get_req_pkt( |
2644 | prm->cmd->qpair->req); | |
2d70c103 NB |
2645 | |
2646 | /* | |
2647 | * Make sure that from cont_pkt64 none of | |
2648 | * 64-bit specific fields used for 32-bit | |
2649 | * addressing. Cast to (cont_entry_t *) for | |
2650 | * that. | |
2651 | */ | |
2652 | ||
2653 | memset(cont_pkt64, 0, sizeof(*cont_pkt64)); | |
2654 | ||
2655 | cont_pkt64->entry_count = 1; | |
2656 | cont_pkt64->sys_define = 0; | |
2657 | ||
32d29b4c QT |
2658 | cont_pkt64->entry_type = CONTINUE_A64_TYPE; |
2659 | dword_ptr = (uint32_t *)&cont_pkt64->dseg_0_address; | |
2d70c103 NB |
2660 | |
2661 | /* Load continuation entry data segments */ | |
2662 | for (cnt = 0; | |
b5399f7d | 2663 | cnt < QLA_TGT_DATASEGS_PER_CONT_24XX && prm->seg_cnt; |
2d70c103 NB |
2664 | cnt++, prm->seg_cnt--) { |
2665 | *dword_ptr++ = | |
3d5ca1e6 | 2666 | cpu_to_le32(lower_32_bits |
2d70c103 | 2667 | (sg_dma_address(prm->sg))); |
3d5ca1e6 | 2668 | *dword_ptr++ = cpu_to_le32(upper_32_bits |
32d29b4c | 2669 | (sg_dma_address(prm->sg))); |
2d70c103 NB |
2670 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); |
2671 | ||
2d70c103 NB |
2672 | prm->sg = sg_next(prm->sg); |
2673 | } | |
2674 | } | |
2675 | } | |
2676 | ||
2677 | /* | |
2678 | * ha->hardware_lock supposed to be held on entry. We have already made sure | |
2679 | * that there is sufficient amount of request entries to not drop it. | |
2680 | */ | |
32d29b4c | 2681 | static void qlt_load_data_segments(struct qla_tgt_prm *prm) |
2d70c103 NB |
2682 | { |
2683 | int cnt; | |
2684 | uint32_t *dword_ptr; | |
2d70c103 NB |
2685 | struct ctio7_to_24xx *pkt24 = (struct ctio7_to_24xx *)prm->pkt; |
2686 | ||
2d70c103 NB |
2687 | pkt24->u.status0.transfer_length = cpu_to_le32(prm->cmd->bufflen); |
2688 | ||
2689 | /* Setup packet address segment pointer */ | |
2690 | dword_ptr = pkt24->u.status0.dseg_0_address; | |
2691 | ||
2692 | /* Set total data segment count */ | |
2693 | if (prm->seg_cnt) | |
2694 | pkt24->dseg_count = cpu_to_le16(prm->seg_cnt); | |
2695 | ||
2696 | if (prm->seg_cnt == 0) { | |
2697 | /* No data transfer */ | |
2698 | *dword_ptr++ = 0; | |
2699 | *dword_ptr = 0; | |
2700 | return; | |
2701 | } | |
2702 | ||
2703 | /* If scatter gather */ | |
2d70c103 NB |
2704 | |
2705 | /* Load command entry data segments */ | |
2706 | for (cnt = 0; | |
b5399f7d | 2707 | (cnt < QLA_TGT_DATASEGS_PER_CMD_24XX) && prm->seg_cnt; |
2d70c103 NB |
2708 | cnt++, prm->seg_cnt--) { |
2709 | *dword_ptr++ = | |
3d5ca1e6 | 2710 | cpu_to_le32(lower_32_bits(sg_dma_address(prm->sg))); |
32d29b4c | 2711 | |
3d5ca1e6 | 2712 | *dword_ptr++ = cpu_to_le32(upper_32_bits( |
32d29b4c QT |
2713 | sg_dma_address(prm->sg))); |
2714 | ||
2d70c103 NB |
2715 | *dword_ptr++ = cpu_to_le32(sg_dma_len(prm->sg)); |
2716 | ||
2d70c103 NB |
2717 | prm->sg = sg_next(prm->sg); |
2718 | } | |
2719 | ||
32d29b4c | 2720 | qlt_load_cont_data_segments(prm); |
2d70c103 NB |
2721 | } |
2722 | ||
2723 | static inline int qlt_has_data(struct qla_tgt_cmd *cmd) | |
2724 | { | |
2725 | return cmd->bufflen > 0; | |
2726 | } | |
2727 | ||
be25152c QT |
2728 | static void qlt_print_dif_err(struct qla_tgt_prm *prm) |
2729 | { | |
2730 | struct qla_tgt_cmd *cmd; | |
2731 | struct scsi_qla_host *vha; | |
2732 | ||
2733 | /* asc 0x10=dif error */ | |
2734 | if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) { | |
2735 | cmd = prm->cmd; | |
2736 | vha = cmd->vha; | |
2737 | /* ASCQ */ | |
2738 | switch (prm->sense_buffer[13]) { | |
2739 | case 1: | |
83548fe2 | 2740 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00b, |
be25152c QT |
2741 | "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2742 | "se_cmd=%p tag[%x]", | |
2743 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2744 | cmd->atio.u.isp24.exchange_addr); | |
2745 | break; | |
2746 | case 2: | |
83548fe2 | 2747 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00c, |
be25152c QT |
2748 | "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2749 | "se_cmd=%p tag[%x]", | |
2750 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2751 | cmd->atio.u.isp24.exchange_addr); | |
2752 | break; | |
2753 | case 3: | |
83548fe2 | 2754 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00f, |
be25152c QT |
2755 | "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] " |
2756 | "se_cmd=%p tag[%x]", | |
2757 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2758 | cmd->atio.u.isp24.exchange_addr); | |
2759 | break; | |
2760 | default: | |
83548fe2 | 2761 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe010, |
be25152c QT |
2762 | "BE detected Dif ERR: lba[%llx|%lld] len[%x] " |
2763 | "se_cmd=%p tag[%x]", | |
2764 | cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, | |
2765 | cmd->atio.u.isp24.exchange_addr); | |
2766 | break; | |
2767 | } | |
83548fe2 | 2768 | ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xe011, cmd->cdb, 16); |
be25152c QT |
2769 | } |
2770 | } | |
2771 | ||
2d70c103 NB |
2772 | /* |
2773 | * Called without ha->hardware_lock held | |
2774 | */ | |
2775 | static int qlt_pre_xmit_response(struct qla_tgt_cmd *cmd, | |
2776 | struct qla_tgt_prm *prm, int xmit_type, uint8_t scsi_status, | |
2777 | uint32_t *full_req_cnt) | |
2778 | { | |
2d70c103 | 2779 | struct se_cmd *se_cmd = &cmd->se_cmd; |
22d84726 | 2780 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 | 2781 | |
2d70c103 | 2782 | prm->cmd = cmd; |
7c3f8fd1 QT |
2783 | prm->tgt = cmd->tgt; |
2784 | prm->pkt = NULL; | |
2d70c103 NB |
2785 | prm->rq_result = scsi_status; |
2786 | prm->sense_buffer = &cmd->sense_buffer[0]; | |
2787 | prm->sense_buffer_len = TRANSPORT_SENSE_BUFFER; | |
2788 | prm->sg = NULL; | |
2789 | prm->seg_cnt = -1; | |
2790 | prm->req_cnt = 1; | |
7c3f8fd1 | 2791 | prm->residual = 0; |
2d70c103 | 2792 | prm->add_status_pkt = 0; |
7c3f8fd1 QT |
2793 | prm->prot_sg = NULL; |
2794 | prm->prot_seg_cnt = 0; | |
2795 | prm->tot_dsds = 0; | |
2d70c103 | 2796 | |
2d70c103 NB |
2797 | if ((xmit_type & QLA_TGT_XMIT_DATA) && qlt_has_data(cmd)) { |
2798 | if (qlt_pci_map_calc_cnt(prm) != 0) | |
2799 | return -EAGAIN; | |
2800 | } | |
2801 | ||
2802 | *full_req_cnt = prm->req_cnt; | |
2803 | ||
2804 | if (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) { | |
2805 | prm->residual = se_cmd->residual_count; | |
22d84726 | 2806 | ql_dbg_qp(ql_dbg_io + ql_dbg_verbose, qpair, 0x305c, |
649ee054 BVA |
2807 | "Residual underflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2808 | prm->residual, se_cmd->tag, | |
2809 | se_cmd->t_task_cdb ? se_cmd->t_task_cdb[0] : 0, | |
2810 | cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2811 | prm->rq_result |= SS_RESIDUAL_UNDER; |
2812 | } else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) { | |
2813 | prm->residual = se_cmd->residual_count; | |
22d84726 | 2814 | ql_dbg_qp(ql_dbg_io, qpair, 0x305d, |
649ee054 BVA |
2815 | "Residual overflow: %d (tag %lld, op %x, bufflen %d, rq_result %x)\n", |
2816 | prm->residual, se_cmd->tag, se_cmd->t_task_cdb ? | |
2817 | se_cmd->t_task_cdb[0] : 0, cmd->bufflen, prm->rq_result); | |
2d70c103 NB |
2818 | prm->rq_result |= SS_RESIDUAL_OVER; |
2819 | } | |
2820 | ||
2821 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
2822 | /* | |
2823 | * If QLA_TGT_XMIT_DATA is not set, add_status_pkt will be | |
2824 | * ignored in *xmit_response() below | |
2825 | */ | |
2826 | if (qlt_has_data(cmd)) { | |
2827 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer) || | |
7c3f8fd1 | 2828 | (IS_FWI2_CAPABLE(cmd->vha->hw) && |
2d70c103 NB |
2829 | (prm->rq_result != 0))) { |
2830 | prm->add_status_pkt = 1; | |
2831 | (*full_req_cnt)++; | |
2832 | } | |
2833 | } | |
2834 | } | |
2835 | ||
2d70c103 NB |
2836 | return 0; |
2837 | } | |
2838 | ||
7c3f8fd1 QT |
2839 | static inline int qlt_need_explicit_conf(struct qla_tgt_cmd *cmd, |
2840 | int sending_sense) | |
2d70c103 | 2841 | { |
7c3f8fd1 | 2842 | if (cmd->qpair->enable_class_2) |
2d70c103 NB |
2843 | return 0; |
2844 | ||
2845 | if (sending_sense) | |
2846 | return cmd->conf_compl_supported; | |
2847 | else | |
7c3f8fd1 QT |
2848 | return cmd->qpair->enable_explicit_conf && |
2849 | cmd->conf_compl_supported; | |
2d70c103 NB |
2850 | } |
2851 | ||
2d70c103 NB |
2852 | static void qlt_24xx_init_ctio_to_isp(struct ctio7_to_24xx *ctio, |
2853 | struct qla_tgt_prm *prm) | |
2854 | { | |
2855 | prm->sense_buffer_len = min_t(uint32_t, prm->sense_buffer_len, | |
2856 | (uint32_t)sizeof(ctio->u.status1.sense_data)); | |
ad950360 | 2857 | ctio->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_SEND_STATUS); |
7c3f8fd1 | 2858 | if (qlt_need_explicit_conf(prm->cmd, 0)) { |
ad950360 | 2859 | ctio->u.status0.flags |= cpu_to_le16( |
2d70c103 NB |
2860 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2861 | CTIO7_FLAGS_CONFORM_REQ); | |
2862 | } | |
2863 | ctio->u.status0.residual = cpu_to_le32(prm->residual); | |
2864 | ctio->u.status0.scsi_status = cpu_to_le16(prm->rq_result); | |
2865 | if (QLA_TGT_SENSE_VALID(prm->sense_buffer)) { | |
2866 | int i; | |
2867 | ||
7c3f8fd1 | 2868 | if (qlt_need_explicit_conf(prm->cmd, 1)) { |
df2e32c5 | 2869 | if ((prm->rq_result & SS_SCSI_STATUS_BYTE) != 0) { |
22d84726 | 2870 | ql_dbg_qp(ql_dbg_tgt, prm->cmd->qpair, 0xe017, |
2d70c103 NB |
2871 | "Skipping EXPLICIT_CONFORM and " |
2872 | "CTIO7_FLAGS_CONFORM_REQ for FCP READ w/ " | |
2873 | "non GOOD status\n"); | |
2874 | goto skip_explict_conf; | |
2875 | } | |
ad950360 | 2876 | ctio->u.status1.flags |= cpu_to_le16( |
2d70c103 NB |
2877 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
2878 | CTIO7_FLAGS_CONFORM_REQ); | |
2879 | } | |
2880 | skip_explict_conf: | |
2881 | ctio->u.status1.flags &= | |
ad950360 | 2882 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2883 | ctio->u.status1.flags |= |
ad950360 | 2884 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 | 2885 | ctio->u.status1.scsi_status |= |
ad950360 | 2886 | cpu_to_le16(SS_SENSE_LEN_VALID); |
2d70c103 NB |
2887 | ctio->u.status1.sense_length = |
2888 | cpu_to_le16(prm->sense_buffer_len); | |
2889 | for (i = 0; i < prm->sense_buffer_len/4; i++) | |
2890 | ((uint32_t *)ctio->u.status1.sense_data)[i] = | |
2891 | cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]); | |
be25152c QT |
2892 | |
2893 | qlt_print_dif_err(prm); | |
2894 | ||
2d70c103 NB |
2895 | } else { |
2896 | ctio->u.status1.flags &= | |
ad950360 | 2897 | ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); |
2d70c103 | 2898 | ctio->u.status1.flags |= |
ad950360 | 2899 | cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1); |
2d70c103 NB |
2900 | ctio->u.status1.sense_length = 0; |
2901 | memset(ctio->u.status1.sense_data, 0, | |
2902 | sizeof(ctio->u.status1.sense_data)); | |
2903 | } | |
2904 | ||
2905 | /* Sense with len > 24, is it possible ??? */ | |
2906 | } | |
2907 | ||
f83adb61 QT |
2908 | static inline int |
2909 | qlt_hba_err_chk_enabled(struct se_cmd *se_cmd) | |
2910 | { | |
f83adb61 QT |
2911 | switch (se_cmd->prot_op) { |
2912 | case TARGET_PROT_DOUT_INSERT: | |
2913 | case TARGET_PROT_DIN_STRIP: | |
2914 | if (ql2xenablehba_err_chk >= 1) | |
2915 | return 1; | |
2916 | break; | |
2917 | case TARGET_PROT_DOUT_PASS: | |
2918 | case TARGET_PROT_DIN_PASS: | |
2919 | if (ql2xenablehba_err_chk >= 2) | |
2920 | return 1; | |
2921 | break; | |
2922 | case TARGET_PROT_DIN_INSERT: | |
2923 | case TARGET_PROT_DOUT_STRIP: | |
2924 | return 1; | |
2925 | default: | |
2926 | break; | |
2927 | } | |
2928 | return 0; | |
2929 | } | |
2930 | ||
be25152c QT |
2931 | static inline int |
2932 | qla_tgt_ref_mask_check(struct se_cmd *se_cmd) | |
2933 | { | |
2934 | switch (se_cmd->prot_op) { | |
2935 | case TARGET_PROT_DIN_INSERT: | |
2936 | case TARGET_PROT_DOUT_INSERT: | |
2937 | case TARGET_PROT_DIN_STRIP: | |
2938 | case TARGET_PROT_DOUT_STRIP: | |
2939 | case TARGET_PROT_DIN_PASS: | |
2940 | case TARGET_PROT_DOUT_PASS: | |
2941 | return 1; | |
2942 | default: | |
2943 | return 0; | |
2944 | } | |
2945 | return 0; | |
2946 | } | |
2947 | ||
f83adb61 | 2948 | /* |
be25152c | 2949 | * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command |
f83adb61 | 2950 | */ |
be25152c QT |
2951 | static void |
2952 | qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx, | |
2953 | uint16_t *pfw_prot_opts) | |
f83adb61 | 2954 | { |
be25152c | 2955 | struct se_cmd *se_cmd = &cmd->se_cmd; |
f83adb61 | 2956 | uint32_t lba = 0xffffffff & se_cmd->t_task_lba; |
be25152c QT |
2957 | scsi_qla_host_t *vha = cmd->tgt->vha; |
2958 | struct qla_hw_data *ha = vha->hw; | |
2959 | uint32_t t32 = 0; | |
f83adb61 | 2960 | |
be25152c QT |
2961 | /* |
2962 | * wait till Mode Sense/Select cmd, modepage Ah, subpage 2 | |
f83adb61 QT |
2963 | * have been immplemented by TCM, before AppTag is avail. |
2964 | * Look for modesense_handlers[] | |
2965 | */ | |
c7ee3bd4 | 2966 | ctx->app_tag = 0; |
f83adb61 QT |
2967 | ctx->app_tag_mask[0] = 0x0; |
2968 | ctx->app_tag_mask[1] = 0x0; | |
2969 | ||
be25152c QT |
2970 | if (IS_PI_UNINIT_CAPABLE(ha)) { |
2971 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
2972 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
2973 | *pfw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
2974 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
2975 | *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
2976 | } | |
2977 | ||
2978 | t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts); | |
2979 | ||
f83adb61 QT |
2980 | switch (se_cmd->prot_type) { |
2981 | case TARGET_DIF_TYPE0_PROT: | |
2982 | /* | |
be25152c QT |
2983 | * No check for ql2xenablehba_err_chk, as it |
2984 | * would be an I/O error if hba tag generation | |
2985 | * is not done. | |
f83adb61 QT |
2986 | */ |
2987 | ctx->ref_tag = cpu_to_le32(lba); | |
f83adb61 QT |
2988 | /* enable ALL bytes of the ref tag */ |
2989 | ctx->ref_tag_mask[0] = 0xff; | |
2990 | ctx->ref_tag_mask[1] = 0xff; | |
2991 | ctx->ref_tag_mask[2] = 0xff; | |
2992 | ctx->ref_tag_mask[3] = 0xff; | |
2993 | break; | |
f83adb61 | 2994 | case TARGET_DIF_TYPE1_PROT: |
be25152c QT |
2995 | /* |
2996 | * For TYPE 1 protection: 16 bit GUARD tag, 32 bit | |
2997 | * REF tag, and 16 bit app tag. | |
2998 | */ | |
2999 | ctx->ref_tag = cpu_to_le32(lba); | |
3000 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
3001 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
3002 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
3003 | break; | |
3004 | } | |
3005 | /* enable ALL bytes of the ref tag */ | |
3006 | ctx->ref_tag_mask[0] = 0xff; | |
3007 | ctx->ref_tag_mask[1] = 0xff; | |
3008 | ctx->ref_tag_mask[2] = 0xff; | |
3009 | ctx->ref_tag_mask[3] = 0xff; | |
3010 | break; | |
f83adb61 | 3011 | case TARGET_DIF_TYPE2_PROT: |
be25152c QT |
3012 | /* |
3013 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF | |
3014 | * tag has to match LBA in CDB + N | |
3015 | */ | |
3016 | ctx->ref_tag = cpu_to_le32(lba); | |
3017 | if (!qla_tgt_ref_mask_check(se_cmd) || | |
3018 | !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { | |
3019 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
3020 | break; | |
3021 | } | |
3022 | /* enable ALL bytes of the ref tag */ | |
3023 | ctx->ref_tag_mask[0] = 0xff; | |
3024 | ctx->ref_tag_mask[1] = 0xff; | |
3025 | ctx->ref_tag_mask[2] = 0xff; | |
3026 | ctx->ref_tag_mask[3] = 0xff; | |
3027 | break; | |
f83adb61 | 3028 | case TARGET_DIF_TYPE3_PROT: |
be25152c QT |
3029 | /* For TYPE 3 protection: 16 bit GUARD only */ |
3030 | *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; | |
3031 | ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] = | |
3032 | ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00; | |
3033 | break; | |
f83adb61 QT |
3034 | } |
3035 | } | |
3036 | ||
f83adb61 | 3037 | static inline int |
82de802a | 3038 | qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm) |
f83adb61 QT |
3039 | { |
3040 | uint32_t *cur_dsd; | |
f83adb61 QT |
3041 | uint32_t transfer_length = 0; |
3042 | uint32_t data_bytes; | |
3043 | uint32_t dif_bytes; | |
3044 | uint8_t bundling = 1; | |
f83adb61 QT |
3045 | struct crc_context *crc_ctx_pkt = NULL; |
3046 | struct qla_hw_data *ha; | |
3047 | struct ctio_crc2_to_fw *pkt; | |
3048 | dma_addr_t crc_ctx_dma; | |
3049 | uint16_t fw_prot_opts = 0; | |
3050 | struct qla_tgt_cmd *cmd = prm->cmd; | |
3051 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
3052 | uint32_t h; | |
3053 | struct atio_from_isp *atio = &prm->cmd->atio; | |
be25152c | 3054 | struct qla_tc_param tc; |
c7ee3bd4 | 3055 | uint16_t t16; |
82de802a | 3056 | scsi_qla_host_t *vha = cmd->vha; |
f83adb61 | 3057 | |
f83adb61 QT |
3058 | ha = vha->hw; |
3059 | ||
82de802a | 3060 | pkt = (struct ctio_crc2_to_fw *)qpair->req->ring_ptr; |
f83adb61 QT |
3061 | prm->pkt = pkt; |
3062 | memset(pkt, 0, sizeof(*pkt)); | |
3063 | ||
22d84726 | 3064 | ql_dbg_qp(ql_dbg_tgt, cmd->qpair, 0xe071, |
f83adb61 | 3065 | "qla_target(%d):%s: se_cmd[%p] CRC2 prot_op[0x%x] cmd prot sg:cnt[%p:%x] lba[%llu]\n", |
22d84726 | 3066 | cmd->vp_idx, __func__, se_cmd, se_cmd->prot_op, |
f83adb61 QT |
3067 | prm->prot_sg, prm->prot_seg_cnt, se_cmd->t_task_lba); |
3068 | ||
3069 | if ((se_cmd->prot_op == TARGET_PROT_DIN_INSERT) || | |
3070 | (se_cmd->prot_op == TARGET_PROT_DOUT_STRIP)) | |
3071 | bundling = 0; | |
3072 | ||
3073 | /* Compute dif len and adjust data len to incude protection */ | |
3074 | data_bytes = cmd->bufflen; | |
3075 | dif_bytes = (data_bytes / cmd->blk_sz) * 8; | |
3076 | ||
3077 | switch (se_cmd->prot_op) { | |
3078 | case TARGET_PROT_DIN_INSERT: | |
3079 | case TARGET_PROT_DOUT_STRIP: | |
3080 | transfer_length = data_bytes; | |
be25152c QT |
3081 | if (cmd->prot_sg_cnt) |
3082 | data_bytes += dif_bytes; | |
f83adb61 | 3083 | break; |
f83adb61 QT |
3084 | case TARGET_PROT_DIN_STRIP: |
3085 | case TARGET_PROT_DOUT_INSERT: | |
3086 | case TARGET_PROT_DIN_PASS: | |
3087 | case TARGET_PROT_DOUT_PASS: | |
3088 | transfer_length = data_bytes + dif_bytes; | |
3089 | break; | |
f83adb61 QT |
3090 | default: |
3091 | BUG(); | |
3092 | break; | |
3093 | } | |
3094 | ||
3095 | if (!qlt_hba_err_chk_enabled(se_cmd)) | |
3096 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ | |
3097 | /* HBA error checking enabled */ | |
3098 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
3099 | if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || | |
3100 | (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) | |
3101 | fw_prot_opts |= PO_DIS_VALD_APP_ESC; | |
3102 | else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) | |
3103 | fw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; | |
3104 | } | |
3105 | ||
3106 | switch (se_cmd->prot_op) { | |
3107 | case TARGET_PROT_DIN_INSERT: | |
3108 | case TARGET_PROT_DOUT_INSERT: | |
3109 | fw_prot_opts |= PO_MODE_DIF_INSERT; | |
3110 | break; | |
3111 | case TARGET_PROT_DIN_STRIP: | |
3112 | case TARGET_PROT_DOUT_STRIP: | |
3113 | fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
3114 | break; | |
3115 | case TARGET_PROT_DIN_PASS: | |
3116 | case TARGET_PROT_DOUT_PASS: | |
3117 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
3118 | /* FUTURE: does tcm require T10CRC<->IPCKSUM conversion? */ | |
3119 | break; | |
3120 | default:/* Normal Request */ | |
3121 | fw_prot_opts |= PO_MODE_DIF_PASS; | |
3122 | break; | |
3123 | } | |
3124 | ||
f83adb61 QT |
3125 | /* ---- PKT ---- */ |
3126 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
3127 | pkt->entry_type = CTIO_CRC2; | |
3128 | pkt->entry_count = 1; | |
22d84726 | 3129 | pkt->vp_index = cmd->vp_idx; |
f83adb61 | 3130 | |
82de802a | 3131 | h = qlt_make_handle(qpair); |
f83adb61 QT |
3132 | if (unlikely(h == QLA_TGT_NULL_HANDLE)) { |
3133 | /* | |
3134 | * CTIO type 7 from the firmware doesn't provide a way to | |
3135 | * know the initiator's LOOP ID, hence we can't find | |
3136 | * the session and, so, the command. | |
3137 | */ | |
3138 | return -EAGAIN; | |
3139 | } else | |
82de802a | 3140 | qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd; |
f83adb61 | 3141 | |
82de802a QT |
3142 | pkt->handle = MAKE_HANDLE(qpair->req->id, h); |
3143 | pkt->handle |= CTIO_COMPLETION_HANDLE_MARK; | |
be25152c | 3144 | pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id); |
ad950360 | 3145 | pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
f83adb61 QT |
3146 | pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; |
3147 | pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
3148 | pkt->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
3149 | pkt->exchange_addr = atio->u.isp24.exchange_addr; | |
c7ee3bd4 QT |
3150 | |
3151 | /* silence compile warning */ | |
3152 | t16 = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); | |
3153 | pkt->ox_id = cpu_to_le16(t16); | |
3154 | ||
3155 | t16 = (atio->u.isp24.attr << 9); | |
3156 | pkt->flags |= cpu_to_le16(t16); | |
f83adb61 QT |
3157 | pkt->relative_offset = cpu_to_le32(prm->cmd->offset); |
3158 | ||
3159 | /* Set transfer direction */ | |
3160 | if (cmd->dma_data_direction == DMA_TO_DEVICE) | |
ad950360 | 3161 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_IN); |
f83adb61 | 3162 | else if (cmd->dma_data_direction == DMA_FROM_DEVICE) |
ad950360 | 3163 | pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT); |
f83adb61 | 3164 | |
f83adb61 QT |
3165 | pkt->dseg_count = prm->tot_dsds; |
3166 | /* Fibre channel byte count */ | |
3167 | pkt->transfer_length = cpu_to_le32(transfer_length); | |
3168 | ||
f83adb61 QT |
3169 | /* ----- CRC context -------- */ |
3170 | ||
3171 | /* Allocate CRC context from global pool */ | |
3172 | crc_ctx_pkt = cmd->ctx = | |
501017f6 | 3173 | dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); |
f83adb61 QT |
3174 | |
3175 | if (!crc_ctx_pkt) | |
3176 | goto crc_queuing_error; | |
3177 | ||
f83adb61 QT |
3178 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; |
3179 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
3180 | ||
3181 | /* Set handle */ | |
3182 | crc_ctx_pkt->handle = pkt->handle; | |
3183 | ||
be25152c | 3184 | qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts); |
f83adb61 QT |
3185 | |
3186 | pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
3187 | pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
3188 | pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
3189 | ||
f83adb61 QT |
3190 | if (!bundling) { |
3191 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
3192 | } else { | |
3193 | /* | |
3194 | * Configure Bundling if we need to fetch interlaving | |
3195 | * protection PCI accesses | |
3196 | */ | |
3197 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
3198 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
3199 | crc_ctx_pkt->u.bundling.dseg_count = | |
3200 | cpu_to_le16(prm->tot_dsds - prm->prot_seg_cnt); | |
3201 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
3202 | } | |
3203 | ||
3204 | /* Finish the common fields of CRC pkt */ | |
3205 | crc_ctx_pkt->blk_size = cpu_to_le16(cmd->blk_sz); | |
3206 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
3207 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
ad950360 | 3208 | crc_ctx_pkt->guard_seed = cpu_to_le16(0); |
f83adb61 | 3209 | |
be25152c QT |
3210 | memset((uint8_t *)&tc, 0 , sizeof(tc)); |
3211 | tc.vha = vha; | |
3212 | tc.blk_sz = cmd->blk_sz; | |
3213 | tc.bufflen = cmd->bufflen; | |
3214 | tc.sg = cmd->sg; | |
3215 | tc.prot_sg = cmd->prot_sg; | |
3216 | tc.ctx = crc_ctx_pkt; | |
3217 | tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced; | |
f83adb61 QT |
3218 | |
3219 | /* Walks data segments */ | |
ad950360 | 3220 | pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR); |
f83adb61 QT |
3221 | |
3222 | if (!bundling && prm->prot_seg_cnt) { | |
3223 | if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd, | |
be25152c | 3224 | prm->tot_dsds, &tc)) |
f83adb61 QT |
3225 | goto crc_queuing_error; |
3226 | } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd, | |
be25152c | 3227 | (prm->tot_dsds - prm->prot_seg_cnt), &tc)) |
f83adb61 QT |
3228 | goto crc_queuing_error; |
3229 | ||
3230 | if (bundling && prm->prot_seg_cnt) { | |
3231 | /* Walks dif segments */ | |
c7ee3bd4 | 3232 | pkt->add_flags |= CTIO_CRC2_AF_DIF_DSD_ENA; |
f83adb61 QT |
3233 | |
3234 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
3235 | if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd, | |
50b81275 | 3236 | prm->prot_seg_cnt, cmd)) |
f83adb61 QT |
3237 | goto crc_queuing_error; |
3238 | } | |
3239 | return QLA_SUCCESS; | |
3240 | ||
3241 | crc_queuing_error: | |
3242 | /* Cleanup will be performed by the caller */ | |
82de802a | 3243 | qpair->req->outstanding_cmds[h] = NULL; |
f83adb61 QT |
3244 | |
3245 | return QLA_FUNCTION_FAILED; | |
3246 | } | |
3247 | ||
2d70c103 NB |
3248 | /* |
3249 | * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and * | |
3250 | * QLA_TGT_XMIT_STATUS for >= 24xx silicon | |
3251 | */ | |
3252 | int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, | |
3253 | uint8_t scsi_status) | |
3254 | { | |
3255 | struct scsi_qla_host *vha = cmd->vha; | |
82de802a | 3256 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 NB |
3257 | struct ctio7_to_24xx *pkt; |
3258 | struct qla_tgt_prm prm; | |
3259 | uint32_t full_req_cnt = 0; | |
3260 | unsigned long flags = 0; | |
3261 | int res; | |
3262 | ||
51fd6e63 QT |
3263 | if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) || |
3264 | (cmd->sess && cmd->sess->deleted)) { | |
a6ca8878 | 3265 | cmd->state = QLA_TGT_STATE_PROCESSED; |
51fd6e63 | 3266 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); |
a6ca8878 AP |
3267 | return 0; |
3268 | } | |
a6ca8878 | 3269 | |
22d84726 | 3270 | ql_dbg_qp(ql_dbg_tgt, qpair, 0xe018, |
82de802a | 3271 | "is_send_status=%d, cmd->bufflen=%d, cmd->sg_cnt=%d, cmd->dma_data_direction=%d se_cmd[%p] qp %d\n", |
f83adb61 QT |
3272 | (xmit_type & QLA_TGT_XMIT_STATUS) ? |
3273 | 1 : 0, cmd->bufflen, cmd->sg_cnt, cmd->dma_data_direction, | |
82de802a | 3274 | &cmd->se_cmd, qpair->id); |
2d70c103 NB |
3275 | |
3276 | res = qlt_pre_xmit_response(cmd, &prm, xmit_type, scsi_status, | |
3277 | &full_req_cnt); | |
3278 | if (unlikely(res != 0)) { | |
2d70c103 NB |
3279 | return res; |
3280 | } | |
3281 | ||
82de802a | 3282 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
2d70c103 | 3283 | |
ce1025cd | 3284 | if (xmit_type == QLA_TGT_XMIT_STATUS) |
60a9eadb | 3285 | qpair->tgt_counters.core_qla_snd_status++; |
ce1025cd | 3286 | else |
60a9eadb | 3287 | qpair->tgt_counters.core_qla_que_buf++; |
ce1025cd | 3288 | |
7c3f8fd1 | 3289 | if (!qpair->fw_started || cmd->reset_count != qpair->chip_reset) { |
b6a029e1 | 3290 | /* |
3bb67df5 | 3291 | * Either the port is not online or this request was from |
b6a029e1 AE |
3292 | * previous life, just abort the processing. |
3293 | */ | |
3294 | cmd->state = QLA_TGT_STATE_PROCESSED; | |
3295 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
22d84726 | 3296 | ql_dbg_qp(ql_dbg_async, qpair, 0xe101, |
3bb67df5 DKU |
3297 | "RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3298 | vha->flags.online, qla2x00_reset_active(vha), | |
7c3f8fd1 | 3299 | cmd->reset_count, qpair->chip_reset); |
82de802a | 3300 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
b6a029e1 AE |
3301 | return 0; |
3302 | } | |
3303 | ||
2d70c103 | 3304 | /* Does F/W have an IOCBs for this request */ |
82de802a | 3305 | res = qlt_check_reserve_free_req(qpair, full_req_cnt); |
2d70c103 NB |
3306 | if (unlikely(res)) |
3307 | goto out_unmap_unlock; | |
3308 | ||
f83adb61 | 3309 | if (cmd->se_cmd.prot_op && (xmit_type & QLA_TGT_XMIT_DATA)) |
82de802a | 3310 | res = qlt_build_ctio_crc2_pkt(qpair, &prm); |
f83adb61 | 3311 | else |
82de802a | 3312 | res = qlt_24xx_build_ctio_pkt(qpair, &prm); |
810e30bc | 3313 | if (unlikely(res != 0)) { |
82de802a | 3314 | qpair->req->cnt += full_req_cnt; |
2d70c103 | 3315 | goto out_unmap_unlock; |
810e30bc | 3316 | } |
2d70c103 NB |
3317 | |
3318 | pkt = (struct ctio7_to_24xx *)prm.pkt; | |
3319 | ||
3320 | if (qlt_has_data(cmd) && (xmit_type & QLA_TGT_XMIT_DATA)) { | |
3321 | pkt->u.status0.flags |= | |
ad950360 | 3322 | cpu_to_le16(CTIO7_FLAGS_DATA_IN | |
2d70c103 NB |
3323 | CTIO7_FLAGS_STATUS_MODE_0); |
3324 | ||
f83adb61 | 3325 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) |
32d29b4c | 3326 | qlt_load_data_segments(&prm); |
2d70c103 NB |
3327 | |
3328 | if (prm.add_status_pkt == 0) { | |
3329 | if (xmit_type & QLA_TGT_XMIT_STATUS) { | |
3330 | pkt->u.status0.scsi_status = | |
3331 | cpu_to_le16(prm.rq_result); | |
3332 | pkt->u.status0.residual = | |
3333 | cpu_to_le32(prm.residual); | |
ad950360 | 3334 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 | 3335 | CTIO7_FLAGS_SEND_STATUS); |
7c3f8fd1 | 3336 | if (qlt_need_explicit_conf(cmd, 0)) { |
2d70c103 | 3337 | pkt->u.status0.flags |= |
ad950360 | 3338 | cpu_to_le16( |
2d70c103 NB |
3339 | CTIO7_FLAGS_EXPLICIT_CONFORM | |
3340 | CTIO7_FLAGS_CONFORM_REQ); | |
3341 | } | |
3342 | } | |
3343 | ||
3344 | } else { | |
3345 | /* | |
3346 | * We have already made sure that there is sufficient | |
3347 | * amount of request entries to not drop HW lock in | |
3348 | * req_pkt(). | |
3349 | */ | |
3350 | struct ctio7_to_24xx *ctio = | |
82de802a QT |
3351 | (struct ctio7_to_24xx *)qlt_get_req_pkt( |
3352 | qpair->req); | |
2d70c103 | 3353 | |
22d84726 | 3354 | ql_dbg_qp(ql_dbg_tgt, qpair, 0x305e, |
667024a3 AE |
3355 | "Building additional status packet 0x%p.\n", |
3356 | ctio); | |
2d70c103 | 3357 | |
f83adb61 QT |
3358 | /* |
3359 | * T10Dif: ctio_crc2_to_fw overlay ontop of | |
3360 | * ctio7_to_24xx | |
3361 | */ | |
2d70c103 | 3362 | memcpy(ctio, pkt, sizeof(*ctio)); |
f83adb61 | 3363 | /* reset back to CTIO7 */ |
2d70c103 | 3364 | ctio->entry_count = 1; |
f83adb61 | 3365 | ctio->entry_type = CTIO_TYPE7; |
2d70c103 | 3366 | ctio->dseg_count = 0; |
ad950360 | 3367 | ctio->u.status1.flags &= ~cpu_to_le16( |
2d70c103 NB |
3368 | CTIO7_FLAGS_DATA_IN); |
3369 | ||
3370 | /* Real finish is ctio_m1's finish */ | |
3371 | pkt->handle |= CTIO_INTERMEDIATE_HANDLE_MARK; | |
ad950360 | 3372 | pkt->u.status0.flags |= cpu_to_le16( |
2d70c103 | 3373 | CTIO7_FLAGS_DONT_RET_CTIO); |
f83adb61 QT |
3374 | |
3375 | /* qlt_24xx_init_ctio_to_isp will correct | |
3376 | * all neccessary fields that's part of CTIO7. | |
3377 | * There should be no residual of CTIO-CRC2 data. | |
3378 | */ | |
2d70c103 NB |
3379 | qlt_24xx_init_ctio_to_isp((struct ctio7_to_24xx *)ctio, |
3380 | &prm); | |
2d70c103 NB |
3381 | } |
3382 | } else | |
3383 | qlt_24xx_init_ctio_to_isp(pkt, &prm); | |
3384 | ||
3385 | ||
3386 | cmd->state = QLA_TGT_STATE_PROCESSED; /* Mid-level is done processing */ | |
d594db01 | 3387 | spin_lock(&cmd->cmd_lock); |
d564a372 | 3388 | cmd->cmd_sent_to_fw = 1; |
d594db01 | 3389 | spin_unlock(&cmd->cmd_lock); |
079a3a3b | 3390 | cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags); |
2d70c103 | 3391 | |
63163e06 HM |
3392 | /* Memory Barrier */ |
3393 | wmb(); | |
8abfa9e2 QT |
3394 | if (qpair->reqq_start_iocbs) |
3395 | qpair->reqq_start_iocbs(qpair); | |
3396 | else | |
3397 | qla2x00_start_iocbs(vha, qpair->req); | |
82de802a | 3398 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3399 | |
3400 | return 0; | |
3401 | ||
3402 | out_unmap_unlock: | |
f9b6721a | 3403 | qlt_unmap_sg(vha, cmd); |
82de802a | 3404 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3405 | |
3406 | return res; | |
3407 | } | |
3408 | EXPORT_SYMBOL(qlt_xmit_response); | |
3409 | ||
3410 | int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) | |
3411 | { | |
3412 | struct ctio7_to_24xx *pkt; | |
3413 | struct scsi_qla_host *vha = cmd->vha; | |
2d70c103 NB |
3414 | struct qla_tgt *tgt = cmd->tgt; |
3415 | struct qla_tgt_prm prm; | |
82de802a | 3416 | unsigned long flags = 0; |
2d70c103 | 3417 | int res = 0; |
82de802a | 3418 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 NB |
3419 | |
3420 | memset(&prm, 0, sizeof(prm)); | |
3421 | prm.cmd = cmd; | |
3422 | prm.tgt = tgt; | |
3423 | prm.sg = NULL; | |
3424 | prm.req_cnt = 1; | |
3425 | ||
2d70c103 NB |
3426 | /* Calculate number of entries and segments required */ |
3427 | if (qlt_pci_map_calc_cnt(&prm) != 0) | |
3428 | return -EAGAIN; | |
3429 | ||
7c3f8fd1 | 3430 | if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) || |
726b8548 | 3431 | (cmd->sess && cmd->sess->deleted)) { |
b6a029e1 | 3432 | /* |
3bb67df5 | 3433 | * Either the port is not online or this request was from |
b6a029e1 AE |
3434 | * previous life, just abort the processing. |
3435 | */ | |
3436 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
3437 | qlt_abort_cmd_on_host_reset(cmd->vha, cmd); | |
22d84726 | 3438 | ql_dbg_qp(ql_dbg_async, qpair, 0xe102, |
3bb67df5 DKU |
3439 | "RESET-XFR online/active/old-count/new-count = %d/%d/%d/%d.\n", |
3440 | vha->flags.online, qla2x00_reset_active(vha), | |
7c3f8fd1 | 3441 | cmd->reset_count, qpair->chip_reset); |
b6a029e1 AE |
3442 | return 0; |
3443 | } | |
3444 | ||
82de802a | 3445 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
2d70c103 | 3446 | /* Does F/W have an IOCBs for this request */ |
82de802a | 3447 | res = qlt_check_reserve_free_req(qpair, prm.req_cnt); |
2d70c103 NB |
3448 | if (res != 0) |
3449 | goto out_unlock_free_unmap; | |
f83adb61 | 3450 | if (cmd->se_cmd.prot_op) |
82de802a | 3451 | res = qlt_build_ctio_crc2_pkt(qpair, &prm); |
f83adb61 | 3452 | else |
82de802a | 3453 | res = qlt_24xx_build_ctio_pkt(qpair, &prm); |
2d70c103 | 3454 | |
810e30bc | 3455 | if (unlikely(res != 0)) { |
82de802a | 3456 | qpair->req->cnt += prm.req_cnt; |
2d70c103 | 3457 | goto out_unlock_free_unmap; |
810e30bc QT |
3458 | } |
3459 | ||
2d70c103 | 3460 | pkt = (struct ctio7_to_24xx *)prm.pkt; |
ad950360 | 3461 | pkt->u.status0.flags |= cpu_to_le16(CTIO7_FLAGS_DATA_OUT | |
2d70c103 | 3462 | CTIO7_FLAGS_STATUS_MODE_0); |
f83adb61 QT |
3463 | |
3464 | if (cmd->se_cmd.prot_op == TARGET_PROT_NORMAL) | |
32d29b4c | 3465 | qlt_load_data_segments(&prm); |
2d70c103 NB |
3466 | |
3467 | cmd->state = QLA_TGT_STATE_NEED_DATA; | |
d594db01 | 3468 | spin_lock(&cmd->cmd_lock); |
d564a372 | 3469 | cmd->cmd_sent_to_fw = 1; |
d594db01 | 3470 | spin_unlock(&cmd->cmd_lock); |
079a3a3b | 3471 | cmd->ctio_flags = le16_to_cpu(pkt->u.status0.flags); |
2d70c103 | 3472 | |
63163e06 HM |
3473 | /* Memory Barrier */ |
3474 | wmb(); | |
8abfa9e2 QT |
3475 | if (qpair->reqq_start_iocbs) |
3476 | qpair->reqq_start_iocbs(qpair); | |
3477 | else | |
3478 | qla2x00_start_iocbs(vha, qpair->req); | |
82de802a | 3479 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3480 | |
3481 | return res; | |
3482 | ||
3483 | out_unlock_free_unmap: | |
f9b6721a | 3484 | qlt_unmap_sg(vha, cmd); |
82de802a | 3485 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
2d70c103 NB |
3486 | |
3487 | return res; | |
3488 | } | |
3489 | EXPORT_SYMBOL(qlt_rdy_to_xfer); | |
3490 | ||
f83adb61 QT |
3491 | |
3492 | /* | |
be25152c | 3493 | * it is assumed either hardware_lock or qpair lock is held. |
f83adb61 | 3494 | */ |
be25152c | 3495 | static void |
8abfa9e2 | 3496 | qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd, |
be25152c | 3497 | struct ctio_crc_from_fw *sts) |
f83adb61 QT |
3498 | { |
3499 | uint8_t *ap = &sts->actual_dif[0]; | |
3500 | uint8_t *ep = &sts->expected_dif[0]; | |
f83adb61 | 3501 | uint64_t lba = cmd->se_cmd.t_task_lba; |
be25152c QT |
3502 | uint8_t scsi_status, sense_key, asc, ascq; |
3503 | unsigned long flags; | |
8abfa9e2 | 3504 | struct scsi_qla_host *vha = cmd->vha; |
f83adb61 | 3505 | |
be25152c | 3506 | cmd->trc_flags |= TRC_DIF_ERR; |
f83adb61 | 3507 | |
be25152c QT |
3508 | cmd->a_guard = be16_to_cpu(*(uint16_t *)(ap + 0)); |
3509 | cmd->a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2)); | |
3510 | cmd->a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4)); | |
f83adb61 | 3511 | |
be25152c QT |
3512 | cmd->e_guard = be16_to_cpu(*(uint16_t *)(ep + 0)); |
3513 | cmd->e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2)); | |
3514 | cmd->e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4)); | |
f83adb61 | 3515 | |
be25152c QT |
3516 | ql_dbg(ql_dbg_tgt_dif, vha, 0xf075, |
3517 | "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state); | |
f83adb61 | 3518 | |
be25152c | 3519 | scsi_status = sense_key = asc = ascq = 0; |
f83adb61 | 3520 | |
be25152c QT |
3521 | /* check appl tag */ |
3522 | if (cmd->e_app_tag != cmd->a_app_tag) { | |
83548fe2 QT |
3523 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00d, |
3524 | "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]", | |
3525 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3526 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3527 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3528 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
be25152c QT |
3529 | |
3530 | cmd->dif_err_code = DIF_ERR_APP; | |
3531 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3532 | sense_key = ABORTED_COMMAND; | |
3533 | asc = 0x10; | |
3534 | ascq = 0x2; | |
f83adb61 QT |
3535 | } |
3536 | ||
3537 | /* check ref tag */ | |
be25152c | 3538 | if (cmd->e_ref_tag != cmd->a_ref_tag) { |
83548fe2 QT |
3539 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe00e, |
3540 | "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] ", | |
3541 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3542 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3543 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3544 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
be25152c QT |
3545 | |
3546 | cmd->dif_err_code = DIF_ERR_REF; | |
3547 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3548 | sense_key = ABORTED_COMMAND; | |
3549 | asc = 0x10; | |
3550 | ascq = 0x3; | |
f83adb61 QT |
3551 | goto out; |
3552 | } | |
3553 | ||
be25152c QT |
3554 | /* check guard */ |
3555 | if (cmd->e_guard != cmd->a_guard) { | |
83548fe2 QT |
3556 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe012, |
3557 | "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]", | |
3558 | cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, | |
3559 | cmd->a_ref_tag, cmd->e_ref_tag, cmd->a_app_tag, | |
3560 | cmd->e_app_tag, cmd->a_guard, cmd->e_guard, cmd, | |
3561 | cmd->atio.u.isp24.fcp_hdr.ox_id); | |
3562 | ||
be25152c QT |
3563 | cmd->dif_err_code = DIF_ERR_GRD; |
3564 | scsi_status = SAM_STAT_CHECK_CONDITION; | |
3565 | sense_key = ABORTED_COMMAND; | |
3566 | asc = 0x10; | |
3567 | ascq = 0x1; | |
f83adb61 QT |
3568 | } |
3569 | out: | |
be25152c QT |
3570 | switch (cmd->state) { |
3571 | case QLA_TGT_STATE_NEED_DATA: | |
3572 | /* handle_data will load DIF error code */ | |
3573 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3574 | vha->hw->tgt.tgt_ops->handle_data(cmd); | |
3575 | break; | |
3576 | default: | |
3577 | spin_lock_irqsave(&cmd->cmd_lock, flags); | |
3578 | if (cmd->aborted) { | |
3579 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3580 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3581 | break; | |
3582 | } | |
3583 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
f83adb61 | 3584 | |
8abfa9e2 QT |
3585 | qlt_send_resp_ctio(qpair, cmd, scsi_status, sense_key, asc, |
3586 | ascq); | |
be25152c QT |
3587 | /* assume scsi status gets out on the wire. |
3588 | * Will not wait for completion. | |
3589 | */ | |
3590 | vha->hw->tgt.tgt_ops->free_cmd(cmd); | |
3591 | break; | |
3592 | } | |
3593 | } | |
f83adb61 | 3594 | |
a6ca8878 AP |
3595 | /* If hardware_lock held on entry, might drop it, then reaquire */ |
3596 | /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ | |
3597 | static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3598 | struct imm_ntfy_from_isp *ntfy) | |
3599 | { | |
3600 | struct nack_to_isp *nack; | |
3601 | struct qla_hw_data *ha = vha->hw; | |
3602 | request_t *pkt; | |
3603 | int ret = 0; | |
3604 | ||
3605 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c, | |
3606 | "Sending TERM ELS CTIO (ha=%p)\n", ha); | |
3607 | ||
ec7193e2 | 3608 | pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); |
a6ca8878 AP |
3609 | if (pkt == NULL) { |
3610 | ql_dbg(ql_dbg_tgt, vha, 0xe080, | |
3611 | "qla_target(%d): %s failed: unable to allocate " | |
3612 | "request packet\n", vha->vp_idx, __func__); | |
3613 | return -ENOMEM; | |
3614 | } | |
3615 | ||
3616 | pkt->entry_type = NOTIFY_ACK_TYPE; | |
3617 | pkt->entry_count = 1; | |
4f060736 | 3618 | pkt->handle = QLA_TGT_SKIP_HANDLE; |
a6ca8878 AP |
3619 | |
3620 | nack = (struct nack_to_isp *)pkt; | |
3621 | nack->ox_id = ntfy->ox_id; | |
3622 | ||
3623 | nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; | |
3624 | if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { | |
3625 | nack->u.isp24.flags = ntfy->u.isp24.flags & | |
3626 | __constant_cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); | |
3627 | } | |
3628 | ||
3629 | /* terminate */ | |
3630 | nack->u.isp24.flags |= | |
3631 | __constant_cpu_to_le16(NOTIFY_ACK_FLAGS_TERMINATE); | |
3632 | ||
3633 | nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; | |
3634 | nack->u.isp24.status = ntfy->u.isp24.status; | |
3635 | nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; | |
3636 | nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; | |
3637 | nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; | |
3638 | nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; | |
3639 | nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; | |
3640 | nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; | |
3641 | ||
3642 | qla2x00_start_iocbs(vha, vha->req); | |
3643 | return ret; | |
3644 | } | |
3645 | ||
3646 | static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, | |
3647 | struct imm_ntfy_from_isp *imm, int ha_locked) | |
3648 | { | |
3649 | unsigned long flags = 0; | |
3650 | int rc; | |
3651 | ||
a6ca8878 AP |
3652 | if (ha_locked) { |
3653 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3654 | ||
3655 | #if 0 /* Todo */ | |
3656 | if (rc == -ENOMEM) | |
3657 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
91f42b33 BVA |
3658 | #else |
3659 | if (rc) { | |
3660 | } | |
a6ca8878 AP |
3661 | #endif |
3662 | goto done; | |
3663 | } | |
3664 | ||
3665 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); | |
3666 | rc = __qlt_send_term_imm_notif(vha, imm); | |
3667 | ||
3668 | #if 0 /* Todo */ | |
3669 | if (rc == -ENOMEM) | |
3670 | qlt_alloc_qfull_cmd(vha, imm, 0, 0); | |
3671 | #endif | |
3672 | ||
3673 | done: | |
3674 | if (!ha_locked) | |
3675 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
3676 | } | |
3677 | ||
83548fe2 QT |
3678 | /* |
3679 | * If hardware_lock held on entry, might drop it, then reaquire | |
3680 | * This function sends the appropriate CTIO to ISP 2xxx or 24xx | |
3681 | */ | |
82de802a | 3682 | static int __qlt_send_term_exchange(struct qla_qpair *qpair, |
2d70c103 NB |
3683 | struct qla_tgt_cmd *cmd, |
3684 | struct atio_from_isp *atio) | |
3685 | { | |
82de802a | 3686 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
3687 | struct ctio7_to_24xx *ctio24; |
3688 | struct qla_hw_data *ha = vha->hw; | |
3689 | request_t *pkt; | |
3690 | int ret = 0; | |
33a5fcee | 3691 | uint16_t temp; |
2d70c103 | 3692 | |
83548fe2 | 3693 | ql_dbg(ql_dbg_tgt, vha, 0xe009, "Sending TERM EXCH CTIO (ha=%p)\n", ha); |
2d70c103 | 3694 | |
72fcd4eb QT |
3695 | if (cmd) |
3696 | vha = cmd->vha; | |
3697 | ||
82de802a | 3698 | pkt = (request_t *)qla2x00_alloc_iocbs_ready(qpair, NULL); |
2d70c103 NB |
3699 | if (pkt == NULL) { |
3700 | ql_dbg(ql_dbg_tgt, vha, 0xe050, | |
3701 | "qla_target(%d): %s failed: unable to allocate " | |
3702 | "request packet\n", vha->vp_idx, __func__); | |
3703 | return -ENOMEM; | |
3704 | } | |
3705 | ||
3706 | if (cmd != NULL) { | |
3707 | if (cmd->state < QLA_TGT_STATE_PROCESSED) { | |
3708 | ql_dbg(ql_dbg_tgt, vha, 0xe051, | |
3709 | "qla_target(%d): Terminating cmd %p with " | |
3710 | "incorrect state %d\n", vha->vp_idx, cmd, | |
3711 | cmd->state); | |
3712 | } else | |
3713 | ret = 1; | |
3714 | } | |
3715 | ||
60a9eadb | 3716 | qpair->tgt_counters.num_term_xchg_sent++; |
2d70c103 NB |
3717 | pkt->entry_count = 1; |
3718 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
3719 | ||
3720 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
3721 | ctio24->entry_type = CTIO_TYPE7; | |
71cdc079 | 3722 | ctio24->nport_handle = CTIO7_NHANDLE_UNRECOGNIZED; |
ad950360 | 3723 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
3724 | ctio24->vp_index = vha->vp_idx; |
3725 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
3726 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
3727 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
3728 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 QT |
3729 | temp = (atio->u.isp24.attr << 9) | CTIO7_FLAGS_STATUS_MODE_1 | |
3730 | CTIO7_FLAGS_TERMINATE; | |
3731 | ctio24->u.status1.flags = cpu_to_le16(temp); | |
33a5fcee QT |
3732 | temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); |
3733 | ctio24->u.status1.ox_id = cpu_to_le16(temp); | |
2d70c103 | 3734 | |
63163e06 HM |
3735 | /* Memory Barrier */ |
3736 | wmb(); | |
8abfa9e2 QT |
3737 | if (qpair->reqq_start_iocbs) |
3738 | qpair->reqq_start_iocbs(qpair); | |
3739 | else | |
3740 | qla2x00_start_iocbs(vha, qpair->req); | |
2d70c103 NB |
3741 | return ret; |
3742 | } | |
3743 | ||
82de802a | 3744 | static void qlt_send_term_exchange(struct qla_qpair *qpair, |
a07100e0 QT |
3745 | struct qla_tgt_cmd *cmd, struct atio_from_isp *atio, int ha_locked, |
3746 | int ul_abort) | |
2d70c103 | 3747 | { |
82de802a | 3748 | struct scsi_qla_host *vha; |
6bc85dd5 | 3749 | unsigned long flags = 0; |
2d70c103 NB |
3750 | int rc; |
3751 | ||
82de802a QT |
3752 | /* why use different vha? NPIV */ |
3753 | if (cmd) | |
3754 | vha = cmd->vha; | |
3755 | else | |
3756 | vha = qpair->vha; | |
2d70c103 NB |
3757 | |
3758 | if (ha_locked) { | |
82de802a | 3759 | rc = __qlt_send_term_exchange(qpair, cmd, atio); |
33e79977 QT |
3760 | if (rc == -ENOMEM) |
3761 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
2d70c103 NB |
3762 | goto done; |
3763 | } | |
82de802a QT |
3764 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
3765 | rc = __qlt_send_term_exchange(qpair, cmd, atio); | |
33e79977 QT |
3766 | if (rc == -ENOMEM) |
3767 | qlt_alloc_qfull_cmd(vha, atio, 0, 0); | |
d564a372 | 3768 | |
2d70c103 | 3769 | done: |
a07100e0 | 3770 | if (cmd && !ul_abort && !cmd->aborted) { |
6bc85dd5 HM |
3771 | if (cmd->sg_mapped) |
3772 | qlt_unmap_sg(vha, cmd); | |
2d70c103 NB |
3773 | vha->hw->tgt.tgt_ops->free_cmd(cmd); |
3774 | } | |
6bc85dd5 HM |
3775 | |
3776 | if (!ha_locked) | |
82de802a | 3777 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
6bc85dd5 | 3778 | |
7b898542 | 3779 | return; |
2d70c103 NB |
3780 | } |
3781 | ||
33e79977 QT |
3782 | static void qlt_init_term_exchange(struct scsi_qla_host *vha) |
3783 | { | |
3784 | struct list_head free_list; | |
3785 | struct qla_tgt_cmd *cmd, *tcmd; | |
3786 | ||
3787 | vha->hw->tgt.leak_exchg_thresh_hold = | |
03e8c680 | 3788 | (vha->hw->cur_fw_xcb_count/100) * LEAK_EXCHG_THRESH_HOLD_PERCENT; |
33e79977 QT |
3789 | |
3790 | cmd = tcmd = NULL; | |
3791 | if (!list_empty(&vha->hw->tgt.q_full_list)) { | |
3792 | INIT_LIST_HEAD(&free_list); | |
3793 | list_splice_init(&vha->hw->tgt.q_full_list, &free_list); | |
3794 | ||
3795 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
3796 | list_del(&cmd->cmd_list); | |
3797 | /* This cmd was never sent to TCM. There is no need | |
3798 | * to schedule free or call free_cmd | |
3799 | */ | |
3800 | qlt_free_cmd(cmd); | |
3801 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
3802 | } | |
3803 | } | |
3804 | vha->hw->tgt.num_qfull_cmds_dropped = 0; | |
3805 | } | |
3806 | ||
3807 | static void qlt_chk_exch_leak_thresh_hold(struct scsi_qla_host *vha) | |
3808 | { | |
3809 | uint32_t total_leaked; | |
3810 | ||
3811 | total_leaked = vha->hw->tgt.num_qfull_cmds_dropped; | |
3812 | ||
3813 | if (vha->hw->tgt.leak_exchg_thresh_hold && | |
3814 | (total_leaked > vha->hw->tgt.leak_exchg_thresh_hold)) { | |
3815 | ||
3816 | ql_dbg(ql_dbg_tgt, vha, 0xe079, | |
3817 | "Chip reset due to exchange starvation: %d/%d.\n", | |
03e8c680 | 3818 | total_leaked, vha->hw->cur_fw_xcb_count); |
33e79977 QT |
3819 | |
3820 | if (IS_P3P_TYPE(vha->hw)) | |
3821 | set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); | |
3822 | else | |
3823 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
3824 | qla2xxx_wake_dpc(vha); | |
3825 | } | |
3826 | ||
3827 | } | |
3828 | ||
a07100e0 | 3829 | int qlt_abort_cmd(struct qla_tgt_cmd *cmd) |
7359df25 AP |
3830 | { |
3831 | struct qla_tgt *tgt = cmd->tgt; | |
3832 | struct scsi_qla_host *vha = tgt->vha; | |
3833 | struct se_cmd *se_cmd = &cmd->se_cmd; | |
a07100e0 | 3834 | unsigned long flags; |
7359df25 AP |
3835 | |
3836 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf014, | |
3837 | "qla_target(%d): terminating exchange for aborted cmd=%p " | |
3838 | "(se_cmd=%p, tag=%llu)", vha->vp_idx, cmd, &cmd->se_cmd, | |
3839 | se_cmd->tag); | |
3840 | ||
a07100e0 QT |
3841 | spin_lock_irqsave(&cmd->cmd_lock, flags); |
3842 | if (cmd->aborted) { | |
3843 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); | |
3844 | /* | |
3845 | * It's normal to see 2 calls in this path: | |
3846 | * 1) XFER Rdy completion + CMD_T_ABORT | |
3847 | * 2) TCM TMR - drain_state_list | |
3848 | */ | |
83548fe2 QT |
3849 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf016, |
3850 | "multiple abort. %p transport_state %x, t_state %x, " | |
3851 | "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state, | |
3852 | cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags); | |
a07100e0 QT |
3853 | return EIO; |
3854 | } | |
193b50b9 | 3855 | cmd->aborted = 1; |
1eb42f96 | 3856 | cmd->trc_flags |= TRC_ABORT; |
a07100e0 | 3857 | spin_unlock_irqrestore(&cmd->cmd_lock, flags); |
7359df25 | 3858 | |
82de802a | 3859 | qlt_send_term_exchange(cmd->qpair, cmd, &cmd->atio, 0, 1); |
a07100e0 | 3860 | return 0; |
7359df25 AP |
3861 | } |
3862 | EXPORT_SYMBOL(qlt_abort_cmd); | |
3863 | ||
2d70c103 NB |
3864 | void qlt_free_cmd(struct qla_tgt_cmd *cmd) |
3865 | { | |
5d964837 | 3866 | struct fc_port *sess = cmd->sess; |
51a07f84 | 3867 | |
f83adb61 QT |
3868 | ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074, |
3869 | "%s: se_cmd[%p] ox_id %04x\n", | |
3870 | __func__, &cmd->se_cmd, | |
3871 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
2d70c103 | 3872 | |
e07f8f65 SK |
3873 | BUG_ON(cmd->cmd_in_wq); |
3874 | ||
a07100e0 QT |
3875 | if (cmd->sg_mapped) |
3876 | qlt_unmap_sg(cmd->vha, cmd); | |
3877 | ||
33e79977 QT |
3878 | if (!cmd->q_full) |
3879 | qlt_decr_num_pend_cmds(cmd->vha); | |
3880 | ||
f83adb61 | 3881 | BUG_ON(cmd->sg_mapped); |
e07f8f65 | 3882 | cmd->jiffies_at_free = get_jiffies_64(); |
2d70c103 NB |
3883 | if (unlikely(cmd->free_sg)) |
3884 | kfree(cmd->sg); | |
51a07f84 NB |
3885 | |
3886 | if (!sess || !sess->se_sess) { | |
3887 | WARN_ON(1); | |
3888 | return; | |
3889 | } | |
e07f8f65 | 3890 | cmd->jiffies_at_free = get_jiffies_64(); |
83c2b54b | 3891 | target_free_tag(sess->se_sess, &cmd->se_cmd); |
2d70c103 NB |
3892 | } |
3893 | EXPORT_SYMBOL(qlt_free_cmd); | |
3894 | ||
2d70c103 NB |
3895 | /* |
3896 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
3897 | */ | |
82de802a | 3898 | static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio, |
2d70c103 NB |
3899 | struct qla_tgt_cmd *cmd, uint32_t status) |
3900 | { | |
3901 | int term = 0; | |
82de802a | 3902 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 | 3903 | |
be25152c | 3904 | if (cmd->se_cmd.prot_op) |
83548fe2 | 3905 | ql_dbg(ql_dbg_tgt_dif, vha, 0xe013, |
be25152c QT |
3906 | "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] " |
3907 | "se_cmd=%p tag[%x] op %#x/%s", | |
3908 | cmd->lba, cmd->lba, | |
3909 | cmd->num_blks, &cmd->se_cmd, | |
3910 | cmd->atio.u.isp24.exchange_addr, | |
3911 | cmd->se_cmd.prot_op, | |
3912 | prot_op_str(cmd->se_cmd.prot_op)); | |
3913 | ||
2d70c103 NB |
3914 | if (ctio != NULL) { |
3915 | struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio; | |
3916 | term = !(c->flags & | |
ad950360 | 3917 | cpu_to_le16(OF_TERM_EXCH)); |
2d70c103 NB |
3918 | } else |
3919 | term = 1; | |
3920 | ||
3921 | if (term) | |
3efc31f7 | 3922 | qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0); |
2d70c103 NB |
3923 | |
3924 | return term; | |
3925 | } | |
3926 | ||
2d70c103 NB |
3927 | |
3928 | /* ha->hardware_lock supposed to be held on entry */ | |
6b0431d6 | 3929 | static void *qlt_ctio_to_cmd(struct scsi_qla_host *vha, |
82de802a | 3930 | struct rsp_que *rsp, uint32_t handle, void *ctio) |
2d70c103 | 3931 | { |
6b0431d6 | 3932 | void *cmd = NULL; |
82de802a QT |
3933 | struct req_que *req; |
3934 | int qid = GET_QID(handle); | |
3935 | uint32_t h = handle & ~QLA_TGT_HANDLE_MASK; | |
2d70c103 | 3936 | |
82de802a QT |
3937 | if (unlikely(h == QLA_TGT_SKIP_HANDLE)) |
3938 | return NULL; | |
2d70c103 | 3939 | |
82de802a QT |
3940 | if (qid == rsp->req->id) { |
3941 | req = rsp->req; | |
3942 | } else if (vha->hw->req_q_map[qid]) { | |
3943 | ql_dbg(ql_dbg_tgt_mgt, vha, 0x1000a, | |
3944 | "qla_target(%d): CTIO completion with different QID %d handle %x\n", | |
3945 | vha->vp_idx, rsp->id, handle); | |
3946 | req = vha->hw->req_q_map[qid]; | |
3947 | } else { | |
3948 | return NULL; | |
3949 | } | |
667024a3 | 3950 | |
82de802a | 3951 | h &= QLA_CMD_HANDLE_MASK; |
c5419e26 | 3952 | |
82de802a | 3953 | if (h != QLA_TGT_NULL_HANDLE) { |
fb2028a0 | 3954 | if (unlikely(h >= req->num_outstanding_cmds)) { |
2d70c103 NB |
3955 | ql_dbg(ql_dbg_tgt, vha, 0xe052, |
3956 | "qla_target(%d): Wrong handle %x received\n", | |
3957 | vha->vp_idx, handle); | |
3958 | return NULL; | |
3959 | } | |
82de802a | 3960 | |
6b0431d6 | 3961 | cmd = (void *) req->outstanding_cmds[h]; |
82de802a | 3962 | if (unlikely(cmd == NULL)) { |
c5419e26 | 3963 | ql_dbg(ql_dbg_async, vha, 0xe053, |
82de802a QT |
3964 | "qla_target(%d): Suspicious: unable to find the command with handle %x req->id %d rsp->id %d\n", |
3965 | vha->vp_idx, handle, req->id, rsp->id); | |
2d70c103 NB |
3966 | return NULL; |
3967 | } | |
82de802a | 3968 | req->outstanding_cmds[h] = NULL; |
2d70c103 NB |
3969 | } else if (ctio != NULL) { |
3970 | /* We can't get loop ID from CTIO7 */ | |
3971 | ql_dbg(ql_dbg_tgt, vha, 0xe054, | |
3972 | "qla_target(%d): Wrong CTIO received: QLA24xx doesn't " | |
3973 | "support NULL handles\n", vha->vp_idx); | |
3974 | return NULL; | |
3975 | } | |
3976 | ||
3977 | return cmd; | |
3978 | } | |
3979 | ||
c0cb4496 | 3980 | /* hardware_lock should be held by caller. */ |
c5419e26 | 3981 | void |
c0cb4496 AE |
3982 | qlt_abort_cmd_on_host_reset(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd) |
3983 | { | |
3984 | struct qla_hw_data *ha = vha->hw; | |
c0cb4496 AE |
3985 | |
3986 | if (cmd->sg_mapped) | |
3987 | qlt_unmap_sg(vha, cmd); | |
3988 | ||
c0cb4496 AE |
3989 | /* TODO: fix debug message type and ids. */ |
3990 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
3991 | ql_dbg(ql_dbg_io, vha, 0xff00, | |
82de802a | 3992 | "HOST-ABORT: state=PROCESSED.\n"); |
c0cb4496 AE |
3993 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { |
3994 | cmd->write_data_transferred = 0; | |
3995 | cmd->state = QLA_TGT_STATE_DATA_IN; | |
3996 | ||
3997 | ql_dbg(ql_dbg_io, vha, 0xff01, | |
82de802a | 3998 | "HOST-ABORT: state=DATA_IN.\n"); |
c0cb4496 AE |
3999 | |
4000 | ha->tgt.tgt_ops->handle_data(cmd); | |
4001 | return; | |
c0cb4496 AE |
4002 | } else { |
4003 | ql_dbg(ql_dbg_io, vha, 0xff03, | |
82de802a | 4004 | "HOST-ABORT: state=BAD(%d).\n", |
c0cb4496 AE |
4005 | cmd->state); |
4006 | dump_stack(); | |
4007 | } | |
4008 | ||
1eb42f96 | 4009 | cmd->trc_flags |= TRC_FLUSH; |
c0cb4496 AE |
4010 | ha->tgt.tgt_ops->free_cmd(cmd); |
4011 | } | |
4012 | ||
2d70c103 NB |
4013 | /* |
4014 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4015 | */ | |
82de802a QT |
4016 | static void qlt_do_ctio_completion(struct scsi_qla_host *vha, |
4017 | struct rsp_que *rsp, uint32_t handle, uint32_t status, void *ctio) | |
2d70c103 NB |
4018 | { |
4019 | struct qla_hw_data *ha = vha->hw; | |
4020 | struct se_cmd *se_cmd; | |
2d70c103 | 4021 | struct qla_tgt_cmd *cmd; |
82de802a | 4022 | struct qla_qpair *qpair = rsp->qpair; |
2d70c103 | 4023 | |
2d70c103 NB |
4024 | if (handle & CTIO_INTERMEDIATE_HANDLE_MARK) { |
4025 | /* That could happen only in case of an error/reset/abort */ | |
4026 | if (status != CTIO_SUCCESS) { | |
4027 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01d, | |
4028 | "Intermediate CTIO received" | |
4029 | " (status %x)\n", status); | |
4030 | } | |
4031 | return; | |
4032 | } | |
4033 | ||
6b0431d6 | 4034 | cmd = (struct qla_tgt_cmd *)qlt_ctio_to_cmd(vha, rsp, handle, ctio); |
092e1dc3 | 4035 | if (cmd == NULL) |
2d70c103 | 4036 | return; |
092e1dc3 | 4037 | |
2d70c103 | 4038 | se_cmd = &cmd->se_cmd; |
d564a372 | 4039 | cmd->cmd_sent_to_fw = 0; |
2d70c103 | 4040 | |
f9b6721a | 4041 | qlt_unmap_sg(vha, cmd); |
2d70c103 NB |
4042 | |
4043 | if (unlikely(status != CTIO_SUCCESS)) { | |
4044 | switch (status & 0xFFFF) { | |
079a3a3b QT |
4045 | case CTIO_INVALID_RX_ID: |
4046 | if (printk_ratelimit()) | |
4047 | dev_info(&vha->hw->pdev->dev, | |
4048 | "qla_target(%d): CTIO with INVALID_RX_ID ATIO attr %x CTIO Flags %x|%x\n", | |
4049 | vha->vp_idx, cmd->atio.u.isp24.attr, | |
4050 | ((cmd->ctio_flags >> 9) & 0xf), | |
4051 | cmd->ctio_flags); | |
4052 | ||
4053 | break; | |
2d70c103 NB |
4054 | case CTIO_LIP_RESET: |
4055 | case CTIO_TARGET_RESET: | |
4056 | case CTIO_ABORTED: | |
7b898542 | 4057 | /* driver request abort via Terminate exchange */ |
2d70c103 | 4058 | case CTIO_TIMEOUT: |
2d70c103 NB |
4059 | /* They are OK */ |
4060 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf058, | |
4061 | "qla_target(%d): CTIO with " | |
4062 | "status %#x received, state %x, se_cmd %p, " | |
4063 | "(LIP_RESET=e, ABORTED=2, TARGET_RESET=17, " | |
4064 | "TIMEOUT=b, INVALID_RX_ID=8)\n", vha->vp_idx, | |
4065 | status, cmd->state, se_cmd); | |
4066 | break; | |
4067 | ||
4068 | case CTIO_PORT_LOGGED_OUT: | |
4069 | case CTIO_PORT_UNAVAILABLE: | |
71cdc079 | 4070 | { |
dacb5822 HM |
4071 | int logged_out = |
4072 | (status & 0xFFFF) == CTIO_PORT_LOGGED_OUT; | |
4073 | ||
2d70c103 | 4074 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf059, |
71cdc079 | 4075 | "qla_target(%d): CTIO with %s status %x " |
2d70c103 | 4076 | "received (state %x, se_cmd %p)\n", vha->vp_idx, |
dacb5822 | 4077 | logged_out ? "PORT LOGGED OUT" : "PORT UNAVAILABLE", |
2d70c103 | 4078 | status, cmd->state, se_cmd); |
2d70c103 | 4079 | |
71cdc079 AP |
4080 | if (logged_out && cmd->sess) { |
4081 | /* | |
4082 | * Session is already logged out, but we need | |
4083 | * to notify initiator, who's not aware of this | |
4084 | */ | |
71cdc079 | 4085 | cmd->sess->send_els_logo = 1; |
83548fe2 | 4086 | ql_dbg(ql_dbg_disc, vha, 0x20f8, |
726b8548 QT |
4087 | "%s %d %8phC post del sess\n", |
4088 | __func__, __LINE__, cmd->sess->port_name); | |
4089 | ||
d8630bb9 | 4090 | qlt_schedule_sess_for_deletion(cmd->sess); |
71cdc079 AP |
4091 | } |
4092 | break; | |
4093 | } | |
f83adb61 QT |
4094 | case CTIO_DIF_ERROR: { |
4095 | struct ctio_crc_from_fw *crc = | |
4096 | (struct ctio_crc_from_fw *)ctio; | |
4097 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073, | |
be25152c QT |
4098 | "qla_target(%d): CTIO with DIF_ERROR status %x " |
4099 | "received (state %x, ulp_cmd %p) actual_dif[0x%llx] " | |
4100 | "expect_dif[0x%llx]\n", | |
f83adb61 QT |
4101 | vha->vp_idx, status, cmd->state, se_cmd, |
4102 | *((u64 *)&crc->actual_dif[0]), | |
4103 | *((u64 *)&crc->expected_dif[0])); | |
4104 | ||
8abfa9e2 | 4105 | qlt_handle_dif_error(qpair, cmd, ctio); |
be25152c | 4106 | return; |
f83adb61 | 4107 | } |
2d70c103 NB |
4108 | default: |
4109 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b, | |
f83adb61 | 4110 | "qla_target(%d): CTIO with error status 0x%x received (state %x, se_cmd %p\n", |
2d70c103 NB |
4111 | vha->vp_idx, status, cmd->state, se_cmd); |
4112 | break; | |
4113 | } | |
4114 | ||
7b898542 | 4115 | |
193b50b9 | 4116 | /* "cmd->aborted" means |
7b898542 QT |
4117 | * cmd is already aborted/terminated, we don't |
4118 | * need to terminate again. The exchange is already | |
4119 | * cleaned up/freed at FW level. Just cleanup at driver | |
4120 | * level. | |
4121 | */ | |
4122 | if ((cmd->state != QLA_TGT_STATE_NEED_DATA) && | |
193b50b9 | 4123 | (!cmd->aborted)) { |
1eb42f96 | 4124 | cmd->trc_flags |= TRC_CTIO_ERR; |
82de802a | 4125 | if (qlt_term_ctio_exchange(qpair, ctio, cmd, status)) |
2d70c103 | 4126 | return; |
7b898542 | 4127 | } |
2d70c103 NB |
4128 | } |
4129 | ||
4130 | if (cmd->state == QLA_TGT_STATE_PROCESSED) { | |
1eb42f96 | 4131 | cmd->trc_flags |= TRC_CTIO_DONE; |
2d70c103 | 4132 | } else if (cmd->state == QLA_TGT_STATE_NEED_DATA) { |
2d70c103 NB |
4133 | cmd->state = QLA_TGT_STATE_DATA_IN; |
4134 | ||
52c82823 | 4135 | if (status == CTIO_SUCCESS) |
2d70c103 NB |
4136 | cmd->write_data_transferred = 1; |
4137 | ||
2d70c103 NB |
4138 | ha->tgt.tgt_ops->handle_data(cmd); |
4139 | return; | |
193b50b9 | 4140 | } else if (cmd->aborted) { |
1eb42f96 | 4141 | cmd->trc_flags |= TRC_CTIO_ABORTED; |
2d70c103 | 4142 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01e, |
649ee054 | 4143 | "Aborted command %p (tag %lld) finished\n", cmd, se_cmd->tag); |
2d70c103 | 4144 | } else { |
1eb42f96 | 4145 | cmd->trc_flags |= TRC_CTIO_STRANGE; |
2d70c103 NB |
4146 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05c, |
4147 | "qla_target(%d): A command in state (%d) should " | |
4148 | "not return a CTIO complete\n", vha->vp_idx, cmd->state); | |
4149 | } | |
4150 | ||
7b898542 | 4151 | if (unlikely(status != CTIO_SUCCESS) && |
193b50b9 | 4152 | !cmd->aborted) { |
2d70c103 NB |
4153 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01f, "Finishing failed CTIO\n"); |
4154 | dump_stack(); | |
4155 | } | |
4156 | ||
4157 | ha->tgt.tgt_ops->free_cmd(cmd); | |
4158 | } | |
4159 | ||
2d70c103 NB |
4160 | static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha, |
4161 | uint8_t task_codes) | |
4162 | { | |
4163 | int fcp_task_attr; | |
4164 | ||
4165 | switch (task_codes) { | |
4166 | case ATIO_SIMPLE_QUEUE: | |
68d81f40 | 4167 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
4168 | break; |
4169 | case ATIO_HEAD_OF_QUEUE: | |
68d81f40 | 4170 | fcp_task_attr = TCM_HEAD_TAG; |
2d70c103 NB |
4171 | break; |
4172 | case ATIO_ORDERED_QUEUE: | |
68d81f40 | 4173 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
4174 | break; |
4175 | case ATIO_ACA_QUEUE: | |
68d81f40 | 4176 | fcp_task_attr = TCM_ACA_TAG; |
2d70c103 NB |
4177 | break; |
4178 | case ATIO_UNTAGGED: | |
68d81f40 | 4179 | fcp_task_attr = TCM_SIMPLE_TAG; |
2d70c103 NB |
4180 | break; |
4181 | default: | |
4182 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d, | |
4183 | "qla_target: unknown task code %x, use ORDERED instead\n", | |
4184 | task_codes); | |
68d81f40 | 4185 | fcp_task_attr = TCM_ORDERED_TAG; |
2d70c103 NB |
4186 | break; |
4187 | } | |
4188 | ||
4189 | return fcp_task_attr; | |
4190 | } | |
4191 | ||
5d964837 | 4192 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *, |
2d70c103 NB |
4193 | uint8_t *); |
4194 | /* | |
4195 | * Process context for I/O path into tcm_qla2xxx code | |
4196 | */ | |
51a07f84 | 4197 | static void __qlt_do_work(struct qla_tgt_cmd *cmd) |
2d70c103 | 4198 | { |
2d70c103 NB |
4199 | scsi_qla_host_t *vha = cmd->vha; |
4200 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4201 | struct fc_port *sess = cmd->sess; |
2d70c103 NB |
4202 | struct atio_from_isp *atio = &cmd->atio; |
4203 | unsigned char *cdb; | |
4204 | unsigned long flags; | |
4205 | uint32_t data_length; | |
4206 | int ret, fcp_task_attr, data_dir, bidi = 0; | |
82de802a | 4207 | struct qla_qpair *qpair = cmd->qpair; |
2d70c103 | 4208 | |
e07f8f65 | 4209 | cmd->cmd_in_wq = 0; |
1eb42f96 | 4210 | cmd->trc_flags |= TRC_DO_WORK; |
2d70c103 | 4211 | |
193b50b9 | 4212 | if (cmd->aborted) { |
8b2f5ff3 SN |
4213 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf082, |
4214 | "cmd with tag %u is aborted\n", | |
4215 | cmd->atio.u.isp24.exchange_addr); | |
4216 | goto out_term; | |
4217 | } | |
4218 | ||
a07100e0 | 4219 | spin_lock_init(&cmd->cmd_lock); |
2d70c103 | 4220 | cdb = &atio->u.isp24.fcp_cmnd.cdb[0]; |
649ee054 | 4221 | cmd->se_cmd.tag = atio->u.isp24.exchange_addr; |
2d70c103 NB |
4222 | |
4223 | if (atio->u.isp24.fcp_cmnd.rddata && | |
4224 | atio->u.isp24.fcp_cmnd.wrdata) { | |
4225 | bidi = 1; | |
4226 | data_dir = DMA_TO_DEVICE; | |
4227 | } else if (atio->u.isp24.fcp_cmnd.rddata) | |
4228 | data_dir = DMA_FROM_DEVICE; | |
4229 | else if (atio->u.isp24.fcp_cmnd.wrdata) | |
4230 | data_dir = DMA_TO_DEVICE; | |
4231 | else | |
4232 | data_dir = DMA_NONE; | |
4233 | ||
4234 | fcp_task_attr = qlt_get_fcp_task_attr(vha, | |
4235 | atio->u.isp24.fcp_cmnd.task_attr); | |
e25f7654 | 4236 | data_length = get_datalen_for_atio(atio); |
2d70c103 | 4237 | |
51a07f84 NB |
4238 | ret = ha->tgt.tgt_ops->handle_cmd(vha, cmd, cdb, data_length, |
4239 | fcp_task_attr, data_dir, bidi); | |
2d70c103 NB |
4240 | if (ret != 0) |
4241 | goto out_term; | |
4242 | /* | |
4243 | * Drop extra session reference from qla_tgt_handle_cmd_for_atio*( | |
4244 | */ | |
7560151b | 4245 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
5d964837 | 4246 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4247 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
4248 | return; |
4249 | ||
4250 | out_term: | |
667024a3 | 4251 | ql_dbg(ql_dbg_io, vha, 0x3060, "Terminating work cmd %p", cmd); |
2d70c103 | 4252 | /* |
fae9eaf8 RD |
4253 | * cmd has not sent to target yet, so pass NULL as the second |
4254 | * argument to qlt_send_term_exchange() and free the memory here. | |
2d70c103 | 4255 | */ |
1eb42f96 | 4256 | cmd->trc_flags |= TRC_DO_WORK_ERR; |
82de802a QT |
4257 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); |
4258 | qlt_send_term_exchange(qpair, NULL, &cmd->atio, 1, 0); | |
33e79977 QT |
4259 | |
4260 | qlt_decr_num_pend_cmds(vha); | |
83c2b54b | 4261 | target_free_tag(sess->se_sess, &cmd->se_cmd); |
82de802a | 4262 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
7560151b QT |
4263 | |
4264 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
5d964837 | 4265 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 4266 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
51a07f84 NB |
4267 | } |
4268 | ||
4269 | static void qlt_do_work(struct work_struct *work) | |
4270 | { | |
4271 | struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); | |
8b2f5ff3 SN |
4272 | scsi_qla_host_t *vha = cmd->vha; |
4273 | unsigned long flags; | |
4274 | ||
4275 | spin_lock_irqsave(&vha->cmd_list_lock, flags); | |
4276 | list_del(&cmd->cmd_list); | |
4277 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); | |
51a07f84 NB |
4278 | |
4279 | __qlt_do_work(cmd); | |
4280 | } | |
4281 | ||
09620eeb QT |
4282 | void qlt_clr_qp_table(struct scsi_qla_host *vha) |
4283 | { | |
4284 | unsigned long flags; | |
4285 | struct qla_hw_data *ha = vha->hw; | |
4286 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
4287 | void *node; | |
4288 | u64 key = 0; | |
4289 | ||
4290 | ql_log(ql_log_info, vha, 0x706c, | |
4291 | "User update Number of Active Qpairs %d\n", | |
4292 | ha->tgt.num_act_qpairs); | |
4293 | ||
4294 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); | |
4295 | ||
4296 | btree_for_each_safe64(&tgt->lun_qpair_map, key, node) | |
4297 | btree_remove64(&tgt->lun_qpair_map, key); | |
4298 | ||
4299 | ha->base_qpair->lun_cnt = 0; | |
4300 | for (key = 0; key < ha->max_qpairs; key++) | |
4301 | if (ha->queue_pair_map[key]) | |
4302 | ha->queue_pair_map[key]->lun_cnt = 0; | |
4303 | ||
4304 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); | |
4305 | } | |
4306 | ||
e326d22a QT |
4307 | static void qlt_assign_qpair(struct scsi_qla_host *vha, |
4308 | struct qla_tgt_cmd *cmd) | |
4309 | { | |
4310 | struct qla_qpair *qpair, *qp; | |
4311 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
4312 | struct qla_qpair_hint *h; | |
4313 | ||
4314 | if (vha->flags.qpairs_available) { | |
4315 | h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun); | |
4316 | if (unlikely(!h)) { | |
4317 | /* spread lun to qpair ratio evently */ | |
4318 | int lcnt = 0, rc; | |
4319 | struct scsi_qla_host *base_vha = | |
4320 | pci_get_drvdata(vha->hw->pdev); | |
4321 | ||
4322 | qpair = vha->hw->base_qpair; | |
4323 | if (qpair->lun_cnt == 0) { | |
4324 | qpair->lun_cnt++; | |
4325 | h = qla_qpair_to_hint(tgt, qpair); | |
4326 | BUG_ON(!h); | |
4327 | rc = btree_insert64(&tgt->lun_qpair_map, | |
4328 | cmd->unpacked_lun, h, GFP_ATOMIC); | |
4329 | if (rc) { | |
4330 | qpair->lun_cnt--; | |
4331 | ql_log(ql_log_info, vha, 0xd037, | |
4332 | "Unable to insert lun %llx into lun_qpair_map\n", | |
4333 | cmd->unpacked_lun); | |
4334 | } | |
4335 | goto out; | |
4336 | } else { | |
4337 | lcnt = qpair->lun_cnt; | |
4338 | } | |
4339 | ||
4340 | h = NULL; | |
4341 | list_for_each_entry(qp, &base_vha->qp_list, | |
4342 | qp_list_elem) { | |
4343 | if (qp->lun_cnt == 0) { | |
4344 | qp->lun_cnt++; | |
4345 | h = qla_qpair_to_hint(tgt, qp); | |
4346 | BUG_ON(!h); | |
4347 | rc = btree_insert64(&tgt->lun_qpair_map, | |
4348 | cmd->unpacked_lun, h, GFP_ATOMIC); | |
4349 | if (rc) { | |
4350 | qp->lun_cnt--; | |
4351 | ql_log(ql_log_info, vha, 0xd038, | |
4352 | "Unable to insert lun %llx into lun_qpair_map\n", | |
4353 | cmd->unpacked_lun); | |
4354 | } | |
4355 | qpair = qp; | |
4356 | goto out; | |
4357 | } else { | |
4358 | if (qp->lun_cnt < lcnt) { | |
4359 | lcnt = qp->lun_cnt; | |
4360 | qpair = qp; | |
4361 | continue; | |
4362 | } | |
4363 | } | |
4364 | } | |
4365 | BUG_ON(!qpair); | |
4366 | qpair->lun_cnt++; | |
4367 | h = qla_qpair_to_hint(tgt, qpair); | |
4368 | BUG_ON(!h); | |
4369 | rc = btree_insert64(&tgt->lun_qpair_map, | |
4370 | cmd->unpacked_lun, h, GFP_ATOMIC); | |
4371 | if (rc) { | |
4372 | qpair->lun_cnt--; | |
4373 | ql_log(ql_log_info, vha, 0xd039, | |
4374 | "Unable to insert lun %llx into lun_qpair_map\n", | |
4375 | cmd->unpacked_lun); | |
4376 | } | |
4377 | } | |
4378 | } else { | |
4379 | h = &tgt->qphints[0]; | |
4380 | } | |
4381 | out: | |
4382 | cmd->qpair = h->qpair; | |
4383 | cmd->se_cmd.cpuid = h->cpuid; | |
4384 | } | |
4385 | ||
51a07f84 | 4386 | static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, |
5d964837 | 4387 | struct fc_port *sess, |
51a07f84 NB |
4388 | struct atio_from_isp *atio) |
4389 | { | |
4390 | struct se_session *se_sess = sess->se_sess; | |
4391 | struct qla_tgt_cmd *cmd; | |
10e9cbb6 | 4392 | int tag, cpu; |
51a07f84 | 4393 | |
10e9cbb6 | 4394 | tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu); |
51a07f84 NB |
4395 | if (tag < 0) |
4396 | return NULL; | |
4397 | ||
4398 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
4399 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
c5419e26 | 4400 | cmd->cmd_type = TYPE_TGT_CMD; |
51a07f84 NB |
4401 | memcpy(&cmd->atio, atio, sizeof(*atio)); |
4402 | cmd->state = QLA_TGT_STATE_NEW; | |
4403 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
33e79977 | 4404 | qlt_incr_num_pend_cmds(vha); |
51a07f84 NB |
4405 | cmd->vha = vha; |
4406 | cmd->se_cmd.map_tag = tag; | |
10e9cbb6 | 4407 | cmd->se_cmd.map_cpu = cpu; |
51a07f84 NB |
4408 | cmd->sess = sess; |
4409 | cmd->loop_id = sess->loop_id; | |
4410 | cmd->conf_compl_supported = sess->conf_compl_supported; | |
4411 | ||
1eb42f96 | 4412 | cmd->trc_flags = 0; |
9fce1254 KS |
4413 | cmd->jiffies_at_alloc = get_jiffies_64(); |
4414 | ||
e326d22a QT |
4415 | cmd->unpacked_lun = scsilun_to_int( |
4416 | (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun); | |
4417 | qlt_assign_qpair(vha, cmd); | |
7c3f8fd1 | 4418 | cmd->reset_count = vha->hw->base_qpair->chip_reset; |
22d84726 | 4419 | cmd->vp_idx = vha->vp_idx; |
9fce1254 | 4420 | |
51a07f84 NB |
4421 | return cmd; |
4422 | } | |
4423 | ||
2d70c103 NB |
4424 | /* ha->hardware_lock supposed to be held on entry */ |
4425 | static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, | |
4426 | struct atio_from_isp *atio) | |
4427 | { | |
51a07f84 | 4428 | struct qla_hw_data *ha = vha->hw; |
0e8cd71c | 4429 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
5d964837 | 4430 | struct fc_port *sess; |
2d70c103 | 4431 | struct qla_tgt_cmd *cmd; |
5d964837 | 4432 | unsigned long flags; |
a4239945 | 4433 | port_id_t id; |
2d70c103 NB |
4434 | |
4435 | if (unlikely(tgt->tgt_stop)) { | |
667024a3 | 4436 | ql_dbg(ql_dbg_io, vha, 0x3061, |
2d70c103 | 4437 | "New command while device %p is shutting down\n", tgt); |
7cf95f7e | 4438 | return -ENODEV; |
2d70c103 NB |
4439 | } |
4440 | ||
a4239945 QT |
4441 | id.b.al_pa = atio->u.isp24.fcp_hdr.s_id[2]; |
4442 | id.b.area = atio->u.isp24.fcp_hdr.s_id[1]; | |
4443 | id.b.domain = atio->u.isp24.fcp_hdr.s_id[0]; | |
4444 | if (IS_SW_RESV_ADDR(id)) | |
4445 | return -EBUSY; | |
4446 | ||
51a07f84 | 4447 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id); |
fb35265b QT |
4448 | if (unlikely(!sess)) |
4449 | return -EFAULT; | |
e52a8b45 AP |
4450 | |
4451 | /* Another WWN used to have our s_id. Our PLOGI scheduled its | |
4452 | * session deletion, but it's still in sess_del_work wq */ | |
726b8548 | 4453 | if (sess->deleted) { |
83548fe2 | 4454 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf002, |
e52a8b45 AP |
4455 | "New command while old session %p is being deleted\n", |
4456 | sess); | |
4457 | return -EFAULT; | |
4458 | } | |
4459 | ||
51a07f84 NB |
4460 | /* |
4461 | * Do kref_get() before returning + dropping qla_hw_data->hardware_lock. | |
4462 | */ | |
726b8548 | 4463 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 4464 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004, |
726b8548 QT |
4465 | "%s: kref_get fail, %8phC oxid %x \n", |
4466 | __func__, sess->port_name, | |
4467 | be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id)); | |
4468 | return -EFAULT; | |
4469 | } | |
51a07f84 NB |
4470 | |
4471 | cmd = qlt_get_tag(vha, sess, atio); | |
2d70c103 | 4472 | if (!cmd) { |
667024a3 | 4473 | ql_dbg(ql_dbg_io, vha, 0x3062, |
2d70c103 | 4474 | "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx); |
5d964837 QT |
4475 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
4476 | ha->tgt.tgt_ops->put_sess(sess); | |
4477 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
7cf95f7e | 4478 | return -EBUSY; |
2d70c103 NB |
4479 | } |
4480 | ||
e07f8f65 | 4481 | cmd->cmd_in_wq = 1; |
1eb42f96 | 4482 | cmd->trc_flags |= TRC_NEW_CMD; |
8b2f5ff3 | 4483 | |
726b8548 | 4484 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4485 | list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list); |
726b8548 | 4486 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
8b2f5ff3 | 4487 | |
2d70c103 | 4488 | INIT_WORK(&cmd->work, qlt_do_work); |
e326d22a QT |
4489 | if (vha->flags.qpairs_available) { |
4490 | queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work); | |
4491 | } else if (ha->msix_count) { | |
fb3269ba QT |
4492 | if (cmd->atio.u.isp24.fcp_cmnd.rddata) |
4493 | queue_work_on(smp_processor_id(), qla_tgt_wq, | |
4494 | &cmd->work); | |
4495 | else | |
4496 | queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, | |
4497 | &cmd->work); | |
4498 | } else { | |
4499 | queue_work(qla_tgt_wq, &cmd->work); | |
4500 | } | |
2d70c103 | 4501 | |
82de802a | 4502 | return 0; |
2d70c103 NB |
4503 | } |
4504 | ||
4505 | /* ha->hardware_lock supposed to be held on entry */ | |
5d964837 | 4506 | static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, |
2d70c103 NB |
4507 | int fn, void *iocb, int flags) |
4508 | { | |
4509 | struct scsi_qla_host *vha = sess->vha; | |
4510 | struct qla_hw_data *ha = vha->hw; | |
4511 | struct qla_tgt_mgmt_cmd *mcmd; | |
8b2f5ff3 | 4512 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; |
84905dfe | 4513 | struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0]; |
2d70c103 NB |
4514 | |
4515 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4516 | if (!mcmd) { | |
4517 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x10009, | |
4518 | "qla_target(%d): Allocation of management " | |
4519 | "command failed, some commands and their data could " | |
4520 | "leak\n", vha->vp_idx); | |
4521 | return -ENOMEM; | |
4522 | } | |
4523 | memset(mcmd, 0, sizeof(*mcmd)); | |
4524 | mcmd->sess = sess; | |
4525 | ||
4526 | if (iocb) { | |
4527 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4528 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4529 | } | |
4530 | mcmd->tmr_func = fn; | |
4531 | mcmd->flags = flags; | |
7c3f8fd1 | 4532 | mcmd->reset_count = ha->base_qpair->chip_reset; |
84905dfe | 4533 | mcmd->qpair = h->qpair; |
72fcd4eb | 4534 | mcmd->vha = vha; |
84905dfe QT |
4535 | mcmd->se_cmd.cpuid = h->cpuid; |
4536 | mcmd->unpacked_lun = lun; | |
2d70c103 NB |
4537 | |
4538 | switch (fn) { | |
2d70c103 | 4539 | case QLA_TGT_LUN_RESET: |
84905dfe QT |
4540 | case QLA_TGT_CLEAR_TS: |
4541 | case QLA_TGT_ABORT_TS: | |
4542 | abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id); | |
50435d42 | 4543 | /* fall through */ |
84905dfe QT |
4544 | case QLA_TGT_CLEAR_ACA: |
4545 | h = qlt_find_qphint(vha, mcmd->unpacked_lun); | |
4546 | mcmd->qpair = h->qpair; | |
4547 | mcmd->se_cmd.cpuid = h->cpuid; | |
4548 | break; | |
2d70c103 | 4549 | |
84905dfe QT |
4550 | case QLA_TGT_TARGET_RESET: |
4551 | case QLA_TGT_NEXUS_LOSS_SESS: | |
4552 | case QLA_TGT_NEXUS_LOSS: | |
4553 | case QLA_TGT_ABORT_ALL: | |
4554 | default: | |
4555 | /* no-op */ | |
4556 | break; | |
2d70c103 NB |
4557 | } |
4558 | ||
84905dfe QT |
4559 | INIT_WORK(&mcmd->work, qlt_do_tmr_work); |
4560 | queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, | |
4561 | &mcmd->work); | |
4562 | ||
2d70c103 NB |
4563 | return 0; |
4564 | } | |
4565 | ||
4566 | /* ha->hardware_lock supposed to be held on entry */ | |
4567 | static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb) | |
4568 | { | |
4569 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4570 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4571 | struct fc_port *sess; |
f775bd14 | 4572 | u64 unpacked_lun; |
52c82823 | 4573 | int fn; |
7560151b | 4574 | unsigned long flags; |
2d70c103 | 4575 | |
2d70c103 | 4576 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
7560151b QT |
4577 | |
4578 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); | |
2d70c103 NB |
4579 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, |
4580 | a->u.isp24.fcp_hdr.s_id); | |
7560151b QT |
4581 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4582 | ||
f775bd14 QT |
4583 | unpacked_lun = |
4584 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
2d70c103 | 4585 | |
fb35265b | 4586 | if (sess == NULL || sess->deleted) |
e52a8b45 AP |
4587 | return -EFAULT; |
4588 | ||
2d70c103 NB |
4589 | return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); |
4590 | } | |
4591 | ||
4592 | /* ha->hardware_lock supposed to be held on entry */ | |
4593 | static int __qlt_abort_task(struct scsi_qla_host *vha, | |
5d964837 | 4594 | struct imm_ntfy_from_isp *iocb, struct fc_port *sess) |
2d70c103 NB |
4595 | { |
4596 | struct atio_from_isp *a = (struct atio_from_isp *)iocb; | |
4597 | struct qla_hw_data *ha = vha->hw; | |
4598 | struct qla_tgt_mgmt_cmd *mcmd; | |
f775bd14 | 4599 | u64 unpacked_lun; |
2d70c103 NB |
4600 | int rc; |
4601 | ||
4602 | mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); | |
4603 | if (mcmd == NULL) { | |
4604 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05f, | |
4605 | "qla_target(%d): %s: Allocation of ABORT cmd failed\n", | |
4606 | vha->vp_idx, __func__); | |
4607 | return -ENOMEM; | |
4608 | } | |
4609 | memset(mcmd, 0, sizeof(*mcmd)); | |
4610 | ||
4611 | mcmd->sess = sess; | |
4612 | memcpy(&mcmd->orig_iocb.imm_ntfy, iocb, | |
4613 | sizeof(mcmd->orig_iocb.imm_ntfy)); | |
4614 | ||
f775bd14 QT |
4615 | unpacked_lun = |
4616 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
7c3f8fd1 | 4617 | mcmd->reset_count = ha->base_qpair->chip_reset; |
be92fc3f | 4618 | mcmd->tmr_func = QLA_TGT_2G_ABORT_TASK; |
82de802a | 4619 | mcmd->qpair = ha->base_qpair; |
2d70c103 | 4620 | |
be92fc3f | 4621 | rc = ha->tgt.tgt_ops->handle_tmr(mcmd, unpacked_lun, mcmd->tmr_func, |
2d70c103 NB |
4622 | le16_to_cpu(iocb->u.isp2x.seq_id)); |
4623 | if (rc != 0) { | |
4624 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf060, | |
4625 | "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n", | |
4626 | vha->vp_idx, rc); | |
4627 | mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); | |
4628 | return -EFAULT; | |
4629 | } | |
4630 | ||
4631 | return 0; | |
4632 | } | |
4633 | ||
4634 | /* ha->hardware_lock supposed to be held on entry */ | |
4635 | static int qlt_abort_task(struct scsi_qla_host *vha, | |
4636 | struct imm_ntfy_from_isp *iocb) | |
4637 | { | |
4638 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 4639 | struct fc_port *sess; |
2d70c103 | 4640 | int loop_id; |
7560151b | 4641 | unsigned long flags; |
2d70c103 NB |
4642 | |
4643 | loop_id = GET_TARGET_ID(ha, (struct atio_from_isp *)iocb); | |
4644 | ||
7560151b | 4645 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 4646 | sess = ha->tgt.tgt_ops->find_sess_by_loop_id(vha, loop_id); |
7560151b QT |
4647 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
4648 | ||
2d70c103 NB |
4649 | if (sess == NULL) { |
4650 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf025, | |
4651 | "qla_target(%d): task abort for unexisting " | |
4652 | "session\n", vha->vp_idx); | |
0e8cd71c | 4653 | return qlt_sched_sess_work(vha->vha_tgt.qla_tgt, |
2d70c103 NB |
4654 | QLA_TGT_SESS_WORK_ABORT, iocb, sizeof(*iocb)); |
4655 | } | |
4656 | ||
4657 | return __qlt_abort_task(vha, iocb, sess); | |
4658 | } | |
4659 | ||
a6ca8878 AP |
4660 | void qlt_logo_completion_handler(fc_port_t *fcport, int rc) |
4661 | { | |
726b8548 QT |
4662 | if (rc != MBS_COMMAND_COMPLETE) { |
4663 | ql_dbg(ql_dbg_tgt_mgt, fcport->vha, 0xf093, | |
4664 | "%s: se_sess %p / sess %p from" | |
4665 | " port %8phC loop_id %#04x s_id %02x:%02x:%02x" | |
4666 | " LOGO failed: %#x\n", | |
4667 | __func__, | |
4668 | fcport->se_sess, | |
4669 | fcport, | |
4670 | fcport->port_name, fcport->loop_id, | |
4671 | fcport->d_id.b.domain, fcport->d_id.b.area, | |
4672 | fcport->d_id.b.al_pa, rc); | |
4673 | } | |
4674 | ||
4675 | fcport->logout_completed = 1; | |
a6ca8878 AP |
4676 | } |
4677 | ||
a6ca8878 AP |
4678 | /* |
4679 | * ha->hardware_lock supposed to be held on entry (to protect tgt->sess_list) | |
4680 | * | |
4681 | * Schedules sessions with matching port_id/loop_id but different wwn for | |
4682 | * deletion. Returns existing session with matching wwn if present. | |
4683 | * Null otherwise. | |
4684 | */ | |
726b8548 QT |
4685 | struct fc_port * |
4686 | qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn, | |
5d964837 | 4687 | port_id_t port_id, uint16_t loop_id, struct fc_port **conflict_sess) |
a6ca8878 | 4688 | { |
5d964837 | 4689 | struct fc_port *sess = NULL, *other_sess; |
a6ca8878 AP |
4690 | uint64_t other_wwn; |
4691 | ||
b7bd104e AP |
4692 | *conflict_sess = NULL; |
4693 | ||
5d964837 | 4694 | list_for_each_entry(other_sess, &vha->vp_fcports, list) { |
a6ca8878 AP |
4695 | |
4696 | other_wwn = wwn_to_u64(other_sess->port_name); | |
4697 | ||
4698 | if (wwn == other_wwn) { | |
4699 | WARN_ON(sess); | |
4700 | sess = other_sess; | |
4701 | continue; | |
4702 | } | |
4703 | ||
4704 | /* find other sess with nport_id collision */ | |
37cacc0a | 4705 | if (port_id.b24 == other_sess->d_id.b24) { |
a6ca8878 | 4706 | if (loop_id != other_sess->loop_id) { |
726b8548 | 4707 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000c, |
a6ca8878 AP |
4708 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4709 | other_sess, other_sess->loop_id, other_wwn); | |
4710 | ||
4711 | /* | |
4712 | * logout_on_delete is set by default, but another | |
4713 | * session that has the same s_id/loop_id combo | |
4714 | * might have cleared it when requested this session | |
4715 | * deletion, so don't touch it | |
4716 | */ | |
94cff6e1 | 4717 | qlt_schedule_sess_for_deletion(other_sess); |
a6ca8878 AP |
4718 | } else { |
4719 | /* | |
4720 | * Another wwn used to have our s_id/loop_id | |
b7bd104e | 4721 | * kill the session, but don't free the loop_id |
a6ca8878 | 4722 | */ |
83548fe2 | 4723 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01b, |
726b8548 QT |
4724 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4725 | other_sess, other_sess->loop_id, other_wwn); | |
4726 | ||
b7bd104e | 4727 | other_sess->keep_nport_handle = 1; |
ba743f91 QT |
4728 | if (other_sess->disc_state != DSC_DELETED) |
4729 | *conflict_sess = other_sess; | |
94cff6e1 | 4730 | qlt_schedule_sess_for_deletion(other_sess); |
a6ca8878 AP |
4731 | } |
4732 | continue; | |
4733 | } | |
4734 | ||
4735 | /* find other sess with nport handle collision */ | |
726b8548 QT |
4736 | if ((loop_id == other_sess->loop_id) && |
4737 | (loop_id != FC_NO_LOOP_ID)) { | |
4738 | ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000d, | |
a6ca8878 AP |
4739 | "Invalidating sess %p loop_id %d wwn %llx.\n", |
4740 | other_sess, other_sess->loop_id, other_wwn); | |
4741 | ||
4742 | /* Same loop_id but different s_id | |
4743 | * Ok to kill and logout */ | |
94cff6e1 | 4744 | qlt_schedule_sess_for_deletion(other_sess); |
a6ca8878 AP |
4745 | } |
4746 | } | |
4747 | ||
4748 | return sess; | |
4749 | } | |
4750 | ||
daddf5cf AP |
4751 | /* Abort any commands for this s_id waiting on qla_tgt_wq workqueue */ |
4752 | static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id) | |
4753 | { | |
4754 | struct qla_tgt_sess_op *op; | |
4755 | struct qla_tgt_cmd *cmd; | |
4756 | uint32_t key; | |
4757 | int count = 0; | |
8b631d87 | 4758 | unsigned long flags; |
daddf5cf AP |
4759 | |
4760 | key = (((u32)s_id->b.domain << 16) | | |
4761 | ((u32)s_id->b.area << 8) | | |
4762 | ((u32)s_id->b.al_pa)); | |
4763 | ||
8b631d87 | 4764 | spin_lock_irqsave(&vha->cmd_list_lock, flags); |
daddf5cf AP |
4765 | list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { |
4766 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
41dc529a | 4767 | |
daddf5cf AP |
4768 | if (op_key == key) { |
4769 | op->aborted = true; | |
4770 | count++; | |
4771 | } | |
4772 | } | |
41dc529a QT |
4773 | |
4774 | list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { | |
4775 | uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); | |
4776 | if (op_key == key) { | |
4777 | op->aborted = true; | |
4778 | count++; | |
4779 | } | |
4780 | } | |
4781 | ||
daddf5cf AP |
4782 | list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { |
4783 | uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); | |
4784 | if (cmd_key == key) { | |
193b50b9 | 4785 | cmd->aborted = 1; |
daddf5cf AP |
4786 | count++; |
4787 | } | |
4788 | } | |
8b631d87 | 4789 | spin_unlock_irqrestore(&vha->cmd_list_lock, flags); |
daddf5cf AP |
4790 | |
4791 | return count; | |
4792 | } | |
4793 | ||
9cd883f0 QT |
4794 | static int qlt_handle_login(struct scsi_qla_host *vha, |
4795 | struct imm_ntfy_from_isp *iocb) | |
4796 | { | |
4797 | struct fc_port *sess = NULL, *conflict_sess = NULL; | |
4798 | uint64_t wwn; | |
4799 | port_id_t port_id; | |
4800 | uint16_t loop_id, wd3_lo; | |
4801 | int res = 0; | |
4802 | struct qlt_plogi_ack_t *pla; | |
4803 | unsigned long flags; | |
4804 | ||
4805 | wwn = wwn_to_u64(iocb->u.isp24.port_name); | |
4806 | ||
4807 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
4808 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
4809 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
4810 | port_id.b.rsvd_1 = 0; | |
4811 | ||
4812 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
4813 | ||
4814 | /* Mark all stale commands sitting in qla_tgt_wq for deletion */ | |
4815 | abort_cmds_for_s_id(vha, &port_id); | |
4816 | ||
4817 | if (wwn) { | |
4818 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
4819 | sess = qlt_find_sess_invalidate_other(vha, wwn, | |
4820 | port_id, loop_id, &conflict_sess); | |
4821 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
aa9e6d7b QT |
4822 | } else { |
4823 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
4824 | "%s %d Term INOT due to WWN=0 lid=%d, NportID %06X ", | |
4825 | __func__, __LINE__, loop_id, port_id.b24); | |
4826 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4827 | goto out; | |
9cd883f0 QT |
4828 | } |
4829 | ||
4830 | if (IS_SW_RESV_ADDR(port_id)) { | |
4831 | res = 1; | |
4832 | goto out; | |
4833 | } | |
4834 | ||
4835 | pla = qlt_plogi_ack_find_add(vha, &port_id, iocb); | |
4836 | if (!pla) { | |
48acad09 QT |
4837 | ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0xffff, |
4838 | "%s %d %8phC Term INOT due to mem alloc fail", | |
4839 | __func__, __LINE__, | |
4840 | iocb->u.isp24.port_name); | |
9cd883f0 QT |
4841 | qlt_send_term_imm_notif(vha, iocb, 1); |
4842 | goto out; | |
4843 | } | |
4844 | ||
4845 | if (conflict_sess) { | |
4846 | conflict_sess->login_gen++; | |
4847 | qlt_plogi_ack_link(vha, pla, conflict_sess, | |
4848 | QLT_PLOGI_LINK_CONFLICT); | |
4849 | } | |
4850 | ||
4851 | if (!sess) { | |
4852 | pla->ref_count++; | |
4853 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
4854 | "%s %d %8phC post new sess\n", | |
4855 | __func__, __LINE__, iocb->u.isp24.port_name); | |
a4239945 QT |
4856 | if (iocb->u.isp24.status_subcode == ELS_PLOGI) |
4857 | qla24xx_post_newsess_work(vha, &port_id, | |
4858 | iocb->u.isp24.port_name, | |
4859 | iocb->u.isp24.u.plogi.node_name, | |
4860 | pla, FC4_TYPE_UNKNOWN); | |
4861 | else | |
4862 | qla24xx_post_newsess_work(vha, &port_id, | |
4863 | iocb->u.isp24.port_name, NULL, | |
4864 | pla, FC4_TYPE_UNKNOWN); | |
4865 | ||
9cd883f0 QT |
4866 | goto out; |
4867 | } | |
4868 | ||
cd4ed6b4 QT |
4869 | if (sess->disc_state == DSC_UPD_FCPORT) { |
4870 | u16 sec; | |
4871 | ||
4872 | /* | |
4873 | * Remote port registration is still going on from | |
4874 | * previous login. Allow it to finish before we | |
4875 | * accept the new login. | |
4876 | */ | |
4877 | sess->next_disc_state = DSC_DELETE_PEND; | |
4878 | sec = jiffies_to_msecs(jiffies - | |
4879 | sess->jiffies_at_registration) / 1000; | |
4880 | if (sess->sec_since_registration < sec && sec && | |
4881 | !(sec % 5)) { | |
4882 | sess->sec_since_registration = sec; | |
4883 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
4884 | "%s %8phC - Slow Rport registration (%d Sec)\n", | |
4885 | __func__, sess->port_name, sec); | |
4886 | } | |
4887 | ||
4888 | if (!conflict_sess) | |
4889 | kmem_cache_free(qla_tgt_plogi_cachep, pla); | |
4890 | ||
4891 | qlt_send_term_imm_notif(vha, iocb, 1); | |
4892 | goto out; | |
4893 | } | |
4894 | ||
9cd883f0 QT |
4895 | qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN); |
4896 | sess->d_id = port_id; | |
4897 | sess->login_gen++; | |
4898 | ||
4899 | if (iocb->u.isp24.status_subcode == ELS_PRLI) { | |
4900 | sess->fw_login_state = DSC_LS_PRLI_PEND; | |
4901 | sess->local = 0; | |
4902 | sess->loop_id = loop_id; | |
4903 | sess->d_id = port_id; | |
4904 | sess->fw_login_state = DSC_LS_PRLI_PEND; | |
4905 | wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo); | |
4906 | ||
4907 | if (wd3_lo & BIT_7) | |
4908 | sess->conf_compl_supported = 1; | |
4909 | ||
4910 | if ((wd3_lo & BIT_4) == 0) | |
4911 | sess->port_type = FCT_INITIATOR; | |
4912 | else | |
4913 | sess->port_type = FCT_TARGET; | |
4914 | ||
4915 | } else | |
4916 | sess->fw_login_state = DSC_LS_PLOGI_PEND; | |
4917 | ||
4918 | ||
4919 | ql_dbg(ql_dbg_disc, vha, 0x20f9, | |
4920 | "%s %d %8phC DS %d\n", | |
4921 | __func__, __LINE__, sess->port_name, sess->disc_state); | |
4922 | ||
4923 | switch (sess->disc_state) { | |
4924 | case DSC_DELETED: | |
4925 | qlt_plogi_ack_unref(vha, pla); | |
4926 | break; | |
4927 | ||
4928 | default: | |
4929 | /* | |
4930 | * Under normal circumstances we want to release nport handle | |
4931 | * during LOGO process to avoid nport handle leaks inside FW. | |
4932 | * The exception is when LOGO is done while another PLOGI with | |
4933 | * the same nport handle is waiting as might be the case here. | |
4934 | * Note: there is always a possibily of a race where session | |
4935 | * deletion has already started for other reasons (e.g. ACL | |
4936 | * removal) and now PLOGI arrives: | |
4937 | * 1. if PLOGI arrived in FW after nport handle has been freed, | |
4938 | * FW must have assigned this PLOGI a new/same handle and we | |
4939 | * can proceed ACK'ing it as usual when session deletion | |
4940 | * completes. | |
4941 | * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT | |
4942 | * bit reached it, the handle has now been released. We'll | |
4943 | * get an error when we ACK this PLOGI. Nothing will be sent | |
4944 | * back to initiator. Initiator should eventually retry | |
4945 | * PLOGI and situation will correct itself. | |
4946 | */ | |
4947 | sess->keep_nport_handle = ((sess->loop_id == loop_id) && | |
4948 | (sess->d_id.b24 == port_id.b24)); | |
4949 | ||
4950 | ql_dbg(ql_dbg_disc, vha, 0x20f9, | |
4951 | "%s %d %8phC post del sess\n", | |
4952 | __func__, __LINE__, sess->port_name); | |
4953 | ||
4954 | ||
d8630bb9 | 4955 | qlt_schedule_sess_for_deletion(sess); |
9cd883f0 QT |
4956 | break; |
4957 | } | |
4958 | out: | |
4959 | return res; | |
4960 | } | |
4961 | ||
2d70c103 NB |
4962 | /* |
4963 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
4964 | */ | |
4965 | static int qlt_24xx_handle_els(struct scsi_qla_host *vha, | |
4966 | struct imm_ntfy_from_isp *iocb) | |
4967 | { | |
a6ca8878 | 4968 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
df673274 | 4969 | struct qla_hw_data *ha = vha->hw; |
5d964837 | 4970 | struct fc_port *sess = NULL, *conflict_sess = NULL; |
a6ca8878 AP |
4971 | uint64_t wwn; |
4972 | port_id_t port_id; | |
4973 | uint16_t loop_id; | |
4974 | uint16_t wd3_lo; | |
2d70c103 | 4975 | int res = 0; |
9cd883f0 | 4976 | unsigned long flags; |
2d70c103 | 4977 | |
a6ca8878 AP |
4978 | wwn = wwn_to_u64(iocb->u.isp24.port_name); |
4979 | ||
4980 | port_id.b.domain = iocb->u.isp24.port_id[2]; | |
4981 | port_id.b.area = iocb->u.isp24.port_id[1]; | |
4982 | port_id.b.al_pa = iocb->u.isp24.port_id[0]; | |
4983 | port_id.b.rsvd_1 = 0; | |
4984 | ||
4985 | loop_id = le16_to_cpu(iocb->u.isp24.nport_handle); | |
4986 | ||
726b8548 QT |
4987 | ql_dbg(ql_dbg_disc, vha, 0xf026, |
4988 | "qla_target(%d): Port ID: %02x:%02x:%02x ELS opcode: 0x%02x lid %d %8phC\n", | |
4989 | vha->vp_idx, iocb->u.isp24.port_id[2], | |
4990 | iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0], | |
4991 | iocb->u.isp24.status_subcode, loop_id, | |
4992 | iocb->u.isp24.port_name); | |
2d70c103 | 4993 | |
a6ca8878 AP |
4994 | /* res = 1 means ack at the end of thread |
4995 | * res = 0 means ack async/later. | |
4996 | */ | |
2d70c103 NB |
4997 | switch (iocb->u.isp24.status_subcode) { |
4998 | case ELS_PLOGI: | |
9cd883f0 QT |
4999 | res = qlt_handle_login(vha, iocb); |
5000 | break; | |
a6ca8878 | 5001 | |
9cd883f0 QT |
5002 | case ELS_PRLI: |
5003 | if (N2N_TOPO(ha)) { | |
5004 | sess = qla2x00_find_fcport_by_wwpn(vha, | |
5005 | iocb->u.isp24.port_name, 1); | |
726b8548 | 5006 | |
9cd883f0 QT |
5007 | if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) { |
5008 | ql_dbg(ql_dbg_disc, vha, 0xffff, | |
5009 | "%s %d %8phC Term PRLI due to PLOGI ACK not completed\n", | |
5010 | __func__, __LINE__, | |
5011 | iocb->u.isp24.port_name); | |
5012 | qlt_send_term_imm_notif(vha, iocb, 1); | |
5013 | break; | |
5014 | } | |
726b8548 | 5015 | |
9cd883f0 | 5016 | res = qlt_handle_login(vha, iocb); |
726b8548 QT |
5017 | break; |
5018 | } | |
5019 | ||
a4239945 QT |
5020 | if (IS_SW_RESV_ADDR(port_id)) { |
5021 | res = 1; | |
5022 | break; | |
5023 | } | |
5024 | ||
a6ca8878 AP |
5025 | wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo); |
5026 | ||
7560151b QT |
5027 | if (wwn) { |
5028 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); | |
726b8548 QT |
5029 | sess = qlt_find_sess_invalidate_other(vha, wwn, port_id, |
5030 | loop_id, &conflict_sess); | |
7560151b QT |
5031 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); |
5032 | } | |
b7bd104e AP |
5033 | |
5034 | if (conflict_sess) { | |
5ef696aa QT |
5035 | switch (conflict_sess->disc_state) { |
5036 | case DSC_DELETED: | |
5037 | case DSC_DELETE_PEND: | |
5038 | break; | |
5039 | default: | |
5040 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b, | |
5041 | "PRLI with conflicting sess %p port %8phC\n", | |
5042 | conflict_sess, conflict_sess->port_name); | |
5043 | conflict_sess->fw_login_state = | |
5044 | DSC_LS_PORT_UNAVAIL; | |
5045 | qlt_send_term_imm_notif(vha, iocb, 1); | |
5046 | res = 0; | |
5047 | break; | |
5048 | } | |
b7bd104e | 5049 | } |
a6ca8878 AP |
5050 | |
5051 | if (sess != NULL) { | |
a4239945 | 5052 | bool delete = false; |
cd4ed6b4 | 5053 | int sec; |
82abdcaf QT |
5054 | spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags); |
5055 | switch (sess->fw_login_state) { | |
a4239945 | 5056 | case DSC_LS_PLOGI_PEND: |
82abdcaf QT |
5057 | case DSC_LS_PLOGI_COMP: |
5058 | case DSC_LS_PRLI_COMP: | |
5059 | break; | |
5060 | default: | |
a4239945 QT |
5061 | delete = true; |
5062 | break; | |
5063 | } | |
5064 | ||
5065 | switch (sess->disc_state) { | |
cd4ed6b4 QT |
5066 | case DSC_UPD_FCPORT: |
5067 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, | |
5068 | flags); | |
5069 | ||
5070 | sec = jiffies_to_msecs(jiffies - | |
5071 | sess->jiffies_at_registration)/1000; | |
5072 | if (sess->sec_since_registration < sec && sec && | |
5073 | !(sec % 5)) { | |
5074 | sess->sec_since_registration = sec; | |
5075 | ql_dbg(ql_dbg_disc, sess->vha, 0xffff, | |
5076 | "%s %8phC : Slow Rport registration(%d Sec)\n", | |
5077 | __func__, sess->port_name, sec); | |
5078 | } | |
5079 | qlt_send_term_imm_notif(vha, iocb, 1); | |
5080 | return 0; | |
5081 | ||
a4239945 QT |
5082 | case DSC_LOGIN_PEND: |
5083 | case DSC_GPDB: | |
a4239945 QT |
5084 | case DSC_LOGIN_COMPLETE: |
5085 | case DSC_ADISC: | |
5086 | delete = false; | |
5087 | break; | |
5088 | default: | |
5089 | break; | |
5090 | } | |
5091 | ||
5092 | if (delete) { | |
82abdcaf QT |
5093 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, |
5094 | flags); | |
a6ca8878 AP |
5095 | /* |
5096 | * Impatient initiator sent PRLI before last | |
5097 | * PLOGI could finish. Will force him to re-try, | |
5098 | * while last one finishes. | |
5099 | */ | |
df673274 | 5100 | ql_log(ql_log_warn, sess->vha, 0xf095, |
a6ca8878 AP |
5101 | "sess %p PRLI received, before plogi ack.\n", |
5102 | sess); | |
5103 | qlt_send_term_imm_notif(vha, iocb, 1); | |
5104 | res = 0; | |
5105 | break; | |
5106 | } | |
5107 | ||
5108 | /* | |
5109 | * This shouldn't happen under normal circumstances, | |
5110 | * since we have deleted the old session during PLOGI | |
5111 | */ | |
df673274 | 5112 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf096, |
a6ca8878 AP |
5113 | "PRLI (loop_id %#04x) for existing sess %p (loop_id %#04x)\n", |
5114 | sess->loop_id, sess, iocb->u.isp24.nport_handle); | |
5115 | ||
5116 | sess->local = 0; | |
5117 | sess->loop_id = loop_id; | |
37cacc0a | 5118 | sess->d_id = port_id; |
726b8548 | 5119 | sess->fw_login_state = DSC_LS_PRLI_PEND; |
a6ca8878 AP |
5120 | |
5121 | if (wd3_lo & BIT_7) | |
5122 | sess->conf_compl_supported = 1; | |
5123 | ||
726b8548 QT |
5124 | if ((wd3_lo & BIT_4) == 0) |
5125 | sess->port_type = FCT_INITIATOR; | |
5126 | else | |
5127 | sess->port_type = FCT_TARGET; | |
82abdcaf QT |
5128 | |
5129 | spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags); | |
df673274 AP |
5130 | } |
5131 | res = 1; /* send notify ack */ | |
5132 | ||
5133 | /* Make session global (not used in fabric mode) */ | |
5134 | if (ha->current_topology != ISP_CFG_F) { | |
ec7193e2 | 5135 | if (sess) { |
83548fe2 | 5136 | ql_dbg(ql_dbg_disc, vha, 0x20fa, |
ec7193e2 QT |
5137 | "%s %d %8phC post nack\n", |
5138 | __func__, __LINE__, sess->port_name); | |
5139 | qla24xx_post_nack_work(vha, sess, iocb, | |
5140 | SRB_NACK_PRLI); | |
5141 | res = 0; | |
5142 | } else { | |
5143 | set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); | |
5144 | set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); | |
5145 | qla2xxx_wake_dpc(vha); | |
5146 | } | |
a6ca8878 | 5147 | } else { |
726b8548 | 5148 | if (sess) { |
83548fe2 | 5149 | ql_dbg(ql_dbg_disc, vha, 0x20fb, |
ec7193e2 QT |
5150 | "%s %d %8phC post nack\n", |
5151 | __func__, __LINE__, sess->port_name); | |
726b8548 QT |
5152 | qla24xx_post_nack_work(vha, sess, iocb, |
5153 | SRB_NACK_PRLI); | |
5154 | res = 0; | |
5155 | } | |
5156 | } | |
a6ca8878 AP |
5157 | break; |
5158 | ||
41dc529a QT |
5159 | case ELS_TPRLO: |
5160 | if (le16_to_cpu(iocb->u.isp24.flags) & | |
5161 | NOTIFY24XX_FLAGS_GLOBAL_TPRLO) { | |
5162 | loop_id = 0xFFFF; | |
5163 | qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS); | |
5164 | res = 1; | |
5165 | break; | |
5166 | } | |
81881861 | 5167 | /* fall through */ |
2d70c103 NB |
5168 | case ELS_LOGO: |
5169 | case ELS_PRLO: | |
726b8548 QT |
5170 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
5171 | sess = qla2x00_find_fcport_by_loopid(vha, loop_id); | |
5172 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); | |
5173 | ||
5174 | if (sess) { | |
5175 | sess->login_gen++; | |
5176 | sess->fw_login_state = DSC_LS_LOGO_PEND; | |
726b8548 QT |
5177 | sess->logo_ack_needed = 1; |
5178 | memcpy(sess->iocb, iocb, IOCB_SIZE); | |
5179 | } | |
5180 | ||
2d70c103 | 5181 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); |
726b8548 | 5182 | |
83548fe2 | 5183 | ql_dbg(ql_dbg_disc, vha, 0x20fc, |
726b8548 QT |
5184 | "%s: logo %llx res %d sess %p ", |
5185 | __func__, wwn, res, sess); | |
5186 | if (res == 0) { | |
41dc529a QT |
5187 | /* |
5188 | * cmd went upper layer, look for qlt_xmit_tm_rsp() | |
5189 | * for LOGO_ACK & sess delete | |
5190 | */ | |
726b8548 QT |
5191 | BUG_ON(!sess); |
5192 | res = 0; | |
5193 | } else { | |
41dc529a | 5194 | /* cmd did not go to upper layer. */ |
726b8548 | 5195 | if (sess) { |
d8630bb9 | 5196 | qlt_schedule_sess_for_deletion(sess); |
726b8548 QT |
5197 | res = 0; |
5198 | } | |
5199 | /* else logo will be ack */ | |
5200 | } | |
2d70c103 NB |
5201 | break; |
5202 | case ELS_PDISC: | |
5203 | case ELS_ADISC: | |
5204 | { | |
0e8cd71c | 5205 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 5206 | if (tgt->link_reinit_iocb_pending) { |
82de802a QT |
5207 | qlt_send_notify_ack(ha->base_qpair, |
5208 | &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0); | |
2d70c103 NB |
5209 | tgt->link_reinit_iocb_pending = 0; |
5210 | } | |
726b8548 QT |
5211 | |
5212 | sess = qla2x00_find_fcport_by_wwpn(vha, | |
5213 | iocb->u.isp24.port_name, 1); | |
5214 | if (sess) { | |
83548fe2 | 5215 | ql_dbg(ql_dbg_disc, vha, 0x20fd, |
726b8548 QT |
5216 | "sess %p lid %d|%d DS %d LS %d\n", |
5217 | sess, sess->loop_id, loop_id, | |
5218 | sess->disc_state, sess->fw_login_state); | |
5219 | } | |
5220 | ||
2d70c103 NB |
5221 | res = 1; /* send notify ack */ |
5222 | break; | |
5223 | } | |
5224 | ||
a6ca8878 | 5225 | case ELS_FLOGI: /* should never happen */ |
2d70c103 NB |
5226 | default: |
5227 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf061, | |
5228 | "qla_target(%d): Unsupported ELS command %x " | |
5229 | "received\n", vha->vp_idx, iocb->u.isp24.status_subcode); | |
5230 | res = qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS); | |
5231 | break; | |
5232 | } | |
5233 | ||
9cd883f0 QT |
5234 | ql_dbg(ql_dbg_disc, vha, 0xf026, |
5235 | "qla_target(%d): Exit ELS opcode: 0x%02x res %d\n", | |
5236 | vha->vp_idx, iocb->u.isp24.status_subcode, res); | |
5237 | ||
2d70c103 NB |
5238 | return res; |
5239 | } | |
5240 | ||
2d70c103 NB |
5241 | /* |
5242 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
5243 | */ | |
5244 | static void qlt_handle_imm_notify(struct scsi_qla_host *vha, | |
5245 | struct imm_ntfy_from_isp *iocb) | |
5246 | { | |
5247 | struct qla_hw_data *ha = vha->hw; | |
5248 | uint32_t add_flags = 0; | |
5249 | int send_notify_ack = 1; | |
5250 | uint16_t status; | |
5251 | ||
5252 | status = le16_to_cpu(iocb->u.isp2x.status); | |
5253 | switch (status) { | |
5254 | case IMM_NTFY_LIP_RESET: | |
5255 | { | |
5256 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf032, | |
5257 | "qla_target(%d): LIP reset (loop %#x), subcode %x\n", | |
5258 | vha->vp_idx, le16_to_cpu(iocb->u.isp24.nport_handle), | |
5259 | iocb->u.isp24.status_subcode); | |
5260 | ||
5261 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
5262 | send_notify_ack = 0; | |
5263 | break; | |
5264 | } | |
5265 | ||
5266 | case IMM_NTFY_LIP_LINK_REINIT: | |
5267 | { | |
0e8cd71c | 5268 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
5269 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf033, |
5270 | "qla_target(%d): LINK REINIT (loop %#x, " | |
5271 | "subcode %x)\n", vha->vp_idx, | |
5272 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
5273 | iocb->u.isp24.status_subcode); | |
5274 | if (tgt->link_reinit_iocb_pending) { | |
82de802a QT |
5275 | qlt_send_notify_ack(ha->base_qpair, |
5276 | &tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0); | |
2d70c103 NB |
5277 | } |
5278 | memcpy(&tgt->link_reinit_iocb, iocb, sizeof(*iocb)); | |
5279 | tgt->link_reinit_iocb_pending = 1; | |
5280 | /* | |
5281 | * QLogic requires to wait after LINK REINIT for possible | |
5282 | * PDISC or ADISC ELS commands | |
5283 | */ | |
5284 | send_notify_ack = 0; | |
5285 | break; | |
5286 | } | |
5287 | ||
5288 | case IMM_NTFY_PORT_LOGOUT: | |
5289 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf034, | |
5290 | "qla_target(%d): Port logout (loop " | |
5291 | "%#x, subcode %x)\n", vha->vp_idx, | |
5292 | le16_to_cpu(iocb->u.isp24.nport_handle), | |
5293 | iocb->u.isp24.status_subcode); | |
5294 | ||
5295 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS_SESS) == 0) | |
5296 | send_notify_ack = 0; | |
5297 | /* The sessions will be cleared in the callback, if needed */ | |
5298 | break; | |
5299 | ||
5300 | case IMM_NTFY_GLBL_TPRLO: | |
5301 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf035, | |
5302 | "qla_target(%d): Global TPRLO (%x)\n", vha->vp_idx, status); | |
5303 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
5304 | send_notify_ack = 0; | |
5305 | /* The sessions will be cleared in the callback, if needed */ | |
5306 | break; | |
5307 | ||
5308 | case IMM_NTFY_PORT_CONFIG: | |
5309 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf036, | |
5310 | "qla_target(%d): Port config changed (%x)\n", vha->vp_idx, | |
5311 | status); | |
5312 | if (qlt_reset(vha, iocb, QLA_TGT_ABORT_ALL) == 0) | |
5313 | send_notify_ack = 0; | |
5314 | /* The sessions will be cleared in the callback, if needed */ | |
5315 | break; | |
5316 | ||
5317 | case IMM_NTFY_GLBL_LOGO: | |
5318 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06a, | |
5319 | "qla_target(%d): Link failure detected\n", | |
5320 | vha->vp_idx); | |
5321 | /* I_T nexus loss */ | |
5322 | if (qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS) == 0) | |
5323 | send_notify_ack = 0; | |
5324 | break; | |
5325 | ||
5326 | case IMM_NTFY_IOCB_OVERFLOW: | |
5327 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06b, | |
5328 | "qla_target(%d): Cannot provide requested " | |
5329 | "capability (IOCB overflowed the immediate notify " | |
5330 | "resource count)\n", vha->vp_idx); | |
5331 | break; | |
5332 | ||
5333 | case IMM_NTFY_ABORT_TASK: | |
5334 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf037, | |
5335 | "qla_target(%d): Abort Task (S %08x I %#x -> " | |
5336 | "L %#x)\n", vha->vp_idx, | |
5337 | le16_to_cpu(iocb->u.isp2x.seq_id), | |
5338 | GET_TARGET_ID(ha, (struct atio_from_isp *)iocb), | |
5339 | le16_to_cpu(iocb->u.isp2x.lun)); | |
5340 | if (qlt_abort_task(vha, iocb) == 0) | |
5341 | send_notify_ack = 0; | |
5342 | break; | |
5343 | ||
5344 | case IMM_NTFY_RESOURCE: | |
5345 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06c, | |
5346 | "qla_target(%d): Out of resources, host %ld\n", | |
5347 | vha->vp_idx, vha->host_no); | |
5348 | break; | |
5349 | ||
5350 | case IMM_NTFY_MSG_RX: | |
5351 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038, | |
5352 | "qla_target(%d): Immediate notify task %x\n", | |
5353 | vha->vp_idx, iocb->u.isp2x.task_flags); | |
2d70c103 NB |
5354 | break; |
5355 | ||
5356 | case IMM_NTFY_ELS: | |
5357 | if (qlt_24xx_handle_els(vha, iocb) == 0) | |
5358 | send_notify_ack = 0; | |
5359 | break; | |
2d70c103 NB |
5360 | default: |
5361 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06d, | |
5362 | "qla_target(%d): Received unknown immediate " | |
5363 | "notify status %x\n", vha->vp_idx, status); | |
5364 | break; | |
5365 | } | |
5366 | ||
5367 | if (send_notify_ack) | |
82de802a QT |
5368 | qlt_send_notify_ack(ha->base_qpair, iocb, add_flags, 0, 0, 0, |
5369 | 0, 0); | |
2d70c103 NB |
5370 | } |
5371 | ||
5372 | /* | |
5373 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
5374 | * This function sends busy to ISP 2xxx or 24xx. | |
5375 | */ | |
82de802a | 5376 | static int __qlt_send_busy(struct qla_qpair *qpair, |
2d70c103 NB |
5377 | struct atio_from_isp *atio, uint16_t status) |
5378 | { | |
82de802a | 5379 | struct scsi_qla_host *vha = qpair->vha; |
2d70c103 NB |
5380 | struct ctio7_to_24xx *ctio24; |
5381 | struct qla_hw_data *ha = vha->hw; | |
5382 | request_t *pkt; | |
5d964837 | 5383 | struct fc_port *sess = NULL; |
7560151b | 5384 | unsigned long flags; |
f7e761f5 | 5385 | u16 temp; |
8ea4faf8 QT |
5386 | port_id_t id; |
5387 | ||
5388 | id.b.al_pa = atio->u.isp24.fcp_hdr.s_id[2]; | |
5389 | id.b.area = atio->u.isp24.fcp_hdr.s_id[1]; | |
5390 | id.b.domain = atio->u.isp24.fcp_hdr.s_id[0]; | |
5391 | id.b.rsvd_1 = 0; | |
2d70c103 | 5392 | |
7560151b | 5393 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
8ea4faf8 | 5394 | sess = qla2x00_find_fcport_by_nportid(vha, &id, 1); |
7560151b | 5395 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 5396 | if (!sess) { |
82de802a | 5397 | qlt_send_term_exchange(qpair, NULL, atio, 1, 0); |
33e79977 | 5398 | return 0; |
2d70c103 NB |
5399 | } |
5400 | /* Sending marker isn't necessary, since we called from ISR */ | |
5401 | ||
82de802a | 5402 | pkt = (request_t *)__qla2x00_alloc_iocbs(qpair, NULL); |
2d70c103 | 5403 | if (!pkt) { |
667024a3 | 5404 | ql_dbg(ql_dbg_io, vha, 0x3063, |
2d70c103 NB |
5405 | "qla_target(%d): %s failed: unable to allocate " |
5406 | "request packet", vha->vp_idx, __func__); | |
33e79977 | 5407 | return -ENOMEM; |
2d70c103 NB |
5408 | } |
5409 | ||
60a9eadb | 5410 | qpair->tgt_counters.num_q_full_sent++; |
2d70c103 NB |
5411 | pkt->entry_count = 1; |
5412 | pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK; | |
5413 | ||
5414 | ctio24 = (struct ctio7_to_24xx *)pkt; | |
5415 | ctio24->entry_type = CTIO_TYPE7; | |
5416 | ctio24->nport_handle = sess->loop_id; | |
ad950360 | 5417 | ctio24->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); |
2d70c103 NB |
5418 | ctio24->vp_index = vha->vp_idx; |
5419 | ctio24->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; | |
5420 | ctio24->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; | |
5421 | ctio24->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; | |
5422 | ctio24->exchange_addr = atio->u.isp24.exchange_addr; | |
f7e761f5 | 5423 | temp = (atio->u.isp24.attr << 9) | |
2d70c103 | 5424 | CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS | |
f7e761f5 QT |
5425 | CTIO7_FLAGS_DONT_RET_CTIO; |
5426 | ctio24->u.status1.flags = cpu_to_le16(temp); | |
2d70c103 NB |
5427 | /* |
5428 | * CTIO from fw w/o se_cmd doesn't provide enough info to retry it, | |
5429 | * if the explicit conformation is used. | |
5430 | */ | |
5431 | ctio24->u.status1.ox_id = swab16(atio->u.isp24.fcp_hdr.ox_id); | |
5432 | ctio24->u.status1.scsi_status = cpu_to_le16(status); | |
e25f7654 QT |
5433 | |
5434 | ctio24->u.status1.residual = get_datalen_for_atio(atio); | |
5435 | ||
5436 | if (ctio24->u.status1.residual != 0) | |
5437 | ctio24->u.status1.scsi_status |= SS_RESIDUAL_UNDER; | |
5438 | ||
63163e06 HM |
5439 | /* Memory Barrier */ |
5440 | wmb(); | |
8abfa9e2 QT |
5441 | if (qpair->reqq_start_iocbs) |
5442 | qpair->reqq_start_iocbs(qpair); | |
5443 | else | |
5444 | qla2x00_start_iocbs(vha, qpair->req); | |
33e79977 QT |
5445 | return 0; |
5446 | } | |
5447 | ||
5448 | /* | |
5449 | * This routine is used to allocate a command for either a QFull condition | |
5450 | * (ie reply SAM_STAT_BUSY) or to terminate an exchange that did not go | |
5451 | * out previously. | |
5452 | */ | |
5453 | static void | |
5454 | qlt_alloc_qfull_cmd(struct scsi_qla_host *vha, | |
5455 | struct atio_from_isp *atio, uint16_t status, int qfull) | |
5456 | { | |
5457 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; | |
5458 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 5459 | struct fc_port *sess; |
33e79977 QT |
5460 | struct se_session *se_sess; |
5461 | struct qla_tgt_cmd *cmd; | |
10e9cbb6 | 5462 | int tag, cpu; |
82de802a | 5463 | unsigned long flags; |
33e79977 QT |
5464 | |
5465 | if (unlikely(tgt->tgt_stop)) { | |
5466 | ql_dbg(ql_dbg_io, vha, 0x300a, | |
5467 | "New command while device %p is shutting down\n", tgt); | |
5468 | return; | |
5469 | } | |
5470 | ||
5471 | if ((vha->hw->tgt.num_qfull_cmds_alloc + 1) > MAX_QFULL_CMDS_ALLOC) { | |
5472 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5473 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5474 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5475 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5476 | vha->hw->tgt.num_qfull_cmds_dropped; |
5477 | ||
5478 | ql_dbg(ql_dbg_io, vha, 0x3068, | |
5479 | "qla_target(%d): %s: QFull CMD dropped[%d]\n", | |
5480 | vha->vp_idx, __func__, | |
5481 | vha->hw->tgt.num_qfull_cmds_dropped); | |
5482 | ||
5483 | qlt_chk_exch_leak_thresh_hold(vha); | |
5484 | return; | |
5485 | } | |
5486 | ||
5487 | sess = ha->tgt.tgt_ops->find_sess_by_s_id | |
5488 | (vha, atio->u.isp24.fcp_hdr.s_id); | |
5489 | if (!sess) | |
5490 | return; | |
5491 | ||
5492 | se_sess = sess->se_sess; | |
5493 | ||
10e9cbb6 | 5494 | tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu); |
33e79977 QT |
5495 | if (tag < 0) |
5496 | return; | |
5497 | ||
5498 | cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag]; | |
5499 | if (!cmd) { | |
5500 | ql_dbg(ql_dbg_io, vha, 0x3009, | |
5501 | "qla_target(%d): %s: Allocation of cmd failed\n", | |
5502 | vha->vp_idx, __func__); | |
5503 | ||
5504 | vha->hw->tgt.num_qfull_cmds_dropped++; | |
5505 | if (vha->hw->tgt.num_qfull_cmds_dropped > | |
fc90adaf JC |
5506 | vha->qla_stats.stat_max_qfull_cmds_dropped) |
5507 | vha->qla_stats.stat_max_qfull_cmds_dropped = | |
33e79977 QT |
5508 | vha->hw->tgt.num_qfull_cmds_dropped; |
5509 | ||
5510 | qlt_chk_exch_leak_thresh_hold(vha); | |
5511 | return; | |
5512 | } | |
5513 | ||
5514 | memset(cmd, 0, sizeof(struct qla_tgt_cmd)); | |
5515 | ||
5516 | qlt_incr_num_pend_cmds(vha); | |
5517 | INIT_LIST_HEAD(&cmd->cmd_list); | |
5518 | memcpy(&cmd->atio, atio, sizeof(*atio)); | |
5519 | ||
5520 | cmd->tgt = vha->vha_tgt.qla_tgt; | |
5521 | cmd->vha = vha; | |
7c3f8fd1 | 5522 | cmd->reset_count = ha->base_qpair->chip_reset; |
33e79977 | 5523 | cmd->q_full = 1; |
82de802a | 5524 | cmd->qpair = ha->base_qpair; |
10e9cbb6 | 5525 | cmd->se_cmd.map_cpu = cpu; |
33e79977 QT |
5526 | |
5527 | if (qfull) { | |
5528 | cmd->q_full = 1; | |
5529 | /* NOTE: borrowing the state field to carry the status */ | |
5530 | cmd->state = status; | |
5531 | } else | |
5532 | cmd->term_exchg = 1; | |
5533 | ||
82de802a | 5534 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); |
33e79977 QT |
5535 | list_add_tail(&cmd->cmd_list, &vha->hw->tgt.q_full_list); |
5536 | ||
5537 | vha->hw->tgt.num_qfull_cmds_alloc++; | |
5538 | if (vha->hw->tgt.num_qfull_cmds_alloc > | |
fc90adaf JC |
5539 | vha->qla_stats.stat_max_qfull_cmds_alloc) |
5540 | vha->qla_stats.stat_max_qfull_cmds_alloc = | |
33e79977 | 5541 | vha->hw->tgt.num_qfull_cmds_alloc; |
82de802a | 5542 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); |
33e79977 QT |
5543 | } |
5544 | ||
5545 | int | |
82de802a | 5546 | qlt_free_qfull_cmds(struct qla_qpair *qpair) |
33e79977 | 5547 | { |
82de802a | 5548 | struct scsi_qla_host *vha = qpair->vha; |
33e79977 QT |
5549 | struct qla_hw_data *ha = vha->hw; |
5550 | unsigned long flags; | |
5551 | struct qla_tgt_cmd *cmd, *tcmd; | |
82de802a | 5552 | struct list_head free_list, q_full_list; |
33e79977 QT |
5553 | int rc = 0; |
5554 | ||
5555 | if (list_empty(&ha->tgt.q_full_list)) | |
5556 | return 0; | |
5557 | ||
5558 | INIT_LIST_HEAD(&free_list); | |
82de802a | 5559 | INIT_LIST_HEAD(&q_full_list); |
33e79977 | 5560 | |
82de802a | 5561 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); |
33e79977 | 5562 | if (list_empty(&ha->tgt.q_full_list)) { |
82de802a | 5563 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); |
33e79977 QT |
5564 | return 0; |
5565 | } | |
5566 | ||
82de802a QT |
5567 | list_splice_init(&vha->hw->tgt.q_full_list, &q_full_list); |
5568 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
5569 | ||
5570 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); | |
5571 | list_for_each_entry_safe(cmd, tcmd, &q_full_list, cmd_list) { | |
33e79977 QT |
5572 | if (cmd->q_full) |
5573 | /* cmd->state is a borrowed field to hold status */ | |
82de802a | 5574 | rc = __qlt_send_busy(qpair, &cmd->atio, cmd->state); |
33e79977 | 5575 | else if (cmd->term_exchg) |
82de802a | 5576 | rc = __qlt_send_term_exchange(qpair, NULL, &cmd->atio); |
33e79977 QT |
5577 | |
5578 | if (rc == -ENOMEM) | |
5579 | break; | |
5580 | ||
5581 | if (cmd->q_full) | |
5582 | ql_dbg(ql_dbg_io, vha, 0x3006, | |
5583 | "%s: busy sent for ox_id[%04x]\n", __func__, | |
5584 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5585 | else if (cmd->term_exchg) | |
5586 | ql_dbg(ql_dbg_io, vha, 0x3007, | |
5587 | "%s: Term exchg sent for ox_id[%04x]\n", __func__, | |
5588 | be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id)); | |
5589 | else | |
5590 | ql_dbg(ql_dbg_io, vha, 0x3008, | |
5591 | "%s: Unexpected cmd in QFull list %p\n", __func__, | |
5592 | cmd); | |
5593 | ||
5594 | list_del(&cmd->cmd_list); | |
5595 | list_add_tail(&cmd->cmd_list, &free_list); | |
5596 | ||
5597 | /* piggy back on hardware_lock for protection */ | |
5598 | vha->hw->tgt.num_qfull_cmds_alloc--; | |
5599 | } | |
82de802a | 5600 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); |
33e79977 QT |
5601 | |
5602 | cmd = NULL; | |
5603 | ||
5604 | list_for_each_entry_safe(cmd, tcmd, &free_list, cmd_list) { | |
5605 | list_del(&cmd->cmd_list); | |
5606 | /* This cmd was never sent to TCM. There is no need | |
5607 | * to schedule free or call free_cmd | |
5608 | */ | |
5609 | qlt_free_cmd(cmd); | |
5610 | } | |
82de802a QT |
5611 | |
5612 | if (!list_empty(&q_full_list)) { | |
5613 | spin_lock_irqsave(&vha->hw->tgt.q_full_lock, flags); | |
5614 | list_splice(&q_full_list, &vha->hw->tgt.q_full_list); | |
5615 | spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); | |
5616 | } | |
5617 | ||
33e79977 QT |
5618 | return rc; |
5619 | } | |
5620 | ||
5621 | static void | |
82de802a QT |
5622 | qlt_send_busy(struct qla_qpair *qpair, struct atio_from_isp *atio, |
5623 | uint16_t status) | |
33e79977 QT |
5624 | { |
5625 | int rc = 0; | |
82de802a | 5626 | struct scsi_qla_host *vha = qpair->vha; |
33e79977 | 5627 | |
82de802a | 5628 | rc = __qlt_send_busy(qpair, atio, status); |
33e79977 QT |
5629 | if (rc == -ENOMEM) |
5630 | qlt_alloc_qfull_cmd(vha, atio, status, 1); | |
5631 | } | |
5632 | ||
5633 | static int | |
82de802a QT |
5634 | qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair, |
5635 | struct atio_from_isp *atio, uint8_t ha_locked) | |
33e79977 QT |
5636 | { |
5637 | struct qla_hw_data *ha = vha->hw; | |
8b666809 | 5638 | unsigned long flags; |
33e79977 QT |
5639 | |
5640 | if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha)) | |
5641 | return 0; | |
5642 | ||
8b666809 QT |
5643 | if (!ha_locked) |
5644 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
7cf95f7e | 5645 | qlt_send_busy(qpair, atio, qla_sam_status); |
8b666809 QT |
5646 | if (!ha_locked) |
5647 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
5648 | ||
33e79977 | 5649 | return 1; |
2d70c103 NB |
5650 | } |
5651 | ||
5652 | /* ha->hardware_lock supposed to be held on entry */ | |
5653 | /* called via callback from qla2xxx */ | |
5654 | static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, | |
2f424b9b | 5655 | struct atio_from_isp *atio, uint8_t ha_locked) |
2d70c103 NB |
5656 | { |
5657 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 5658 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 5659 | int rc; |
7cf95f7e | 5660 | unsigned long flags = 0; |
2d70c103 NB |
5661 | |
5662 | if (unlikely(tgt == NULL)) { | |
ec7193e2 | 5663 | ql_dbg(ql_dbg_tgt, vha, 0x3064, |
2d70c103 NB |
5664 | "ATIO pkt, but no tgt (ha %p)", ha); |
5665 | return; | |
5666 | } | |
2d70c103 NB |
5667 | /* |
5668 | * In tgt_stop mode we also should allow all requests to pass. | |
5669 | * Otherwise, some commands can stuck. | |
5670 | */ | |
5671 | ||
2f424b9b | 5672 | tgt->atio_irq_cmd_count++; |
2d70c103 NB |
5673 | |
5674 | switch (atio->u.raw.entry_type) { | |
5675 | case ATIO_TYPE7: | |
2d70c103 NB |
5676 | if (unlikely(atio->u.isp24.exchange_addr == |
5677 | ATIO_EXCHANGE_ADDRESS_UNKNOWN)) { | |
667024a3 | 5678 | ql_dbg(ql_dbg_io, vha, 0x3065, |
2d70c103 NB |
5679 | "qla_target(%d): ATIO_TYPE7 " |
5680 | "received with UNKNOWN exchange address, " | |
5681 | "sending QUEUE_FULL\n", vha->vp_idx); | |
2f424b9b QT |
5682 | if (!ha_locked) |
5683 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
7cf95f7e | 5684 | qlt_send_busy(ha->base_qpair, atio, qla_sam_status); |
2f424b9b | 5685 | if (!ha_locked) |
82de802a QT |
5686 | spin_unlock_irqrestore(&ha->hardware_lock, |
5687 | flags); | |
2d70c103 NB |
5688 | break; |
5689 | } | |
33e79977 | 5690 | |
33e79977 | 5691 | if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) { |
82de802a QT |
5692 | rc = qlt_chk_qfull_thresh_hold(vha, ha->base_qpair, |
5693 | atio, ha_locked); | |
33e79977 | 5694 | if (rc != 0) { |
2f424b9b | 5695 | tgt->atio_irq_cmd_count--; |
33e79977 QT |
5696 | return; |
5697 | } | |
2d70c103 | 5698 | rc = qlt_handle_cmd_for_atio(vha, atio); |
33e79977 | 5699 | } else { |
2d70c103 | 5700 | rc = qlt_handle_task_mgmt(vha, atio); |
33e79977 | 5701 | } |
2d70c103 | 5702 | if (unlikely(rc != 0)) { |
7cf95f7e QT |
5703 | if (!ha_locked) |
5704 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
5705 | switch (rc) { | |
5706 | case -ENODEV: | |
5707 | ql_dbg(ql_dbg_tgt, vha, 0xe05f, | |
5708 | "qla_target: Unable to send command to target\n"); | |
5709 | break; | |
5710 | case -EBADF: | |
5711 | ql_dbg(ql_dbg_tgt, vha, 0xe05f, | |
5712 | "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n"); | |
82de802a QT |
5713 | qlt_send_term_exchange(ha->base_qpair, NULL, |
5714 | atio, 1, 0); | |
7cf95f7e QT |
5715 | break; |
5716 | case -EBUSY: | |
5717 | ql_dbg(ql_dbg_tgt, vha, 0xe060, | |
5718 | "qla_target(%d): Unable to send command to target, sending BUSY status\n", | |
5719 | vha->vp_idx); | |
5720 | qlt_send_busy(ha->base_qpair, atio, | |
5721 | tc_sam_status); | |
5722 | break; | |
5723 | default: | |
5724 | ql_dbg(ql_dbg_tgt, vha, 0xe060, | |
5725 | "qla_target(%d): Unable to send command to target, sending BUSY status\n", | |
5726 | vha->vp_idx); | |
5727 | qlt_send_busy(ha->base_qpair, atio, | |
5728 | qla_sam_status); | |
5729 | break; | |
2d70c103 | 5730 | } |
7cf95f7e QT |
5731 | if (!ha_locked) |
5732 | spin_unlock_irqrestore(&ha->hardware_lock, | |
5733 | flags); | |
2d70c103 NB |
5734 | } |
5735 | break; | |
5736 | ||
5737 | case IMMED_NOTIFY_TYPE: | |
5738 | { | |
5739 | if (unlikely(atio->u.isp2x.entry_status != 0)) { | |
5740 | ql_dbg(ql_dbg_tgt, vha, 0xe05b, | |
5741 | "qla_target(%d): Received ATIO packet %x " | |
5742 | "with error status %x\n", vha->vp_idx, | |
5743 | atio->u.raw.entry_type, | |
5744 | atio->u.isp2x.entry_status); | |
5745 | break; | |
5746 | } | |
5747 | ql_dbg(ql_dbg_tgt, vha, 0xe02e, "%s", "IMMED_NOTIFY ATIO"); | |
2f424b9b QT |
5748 | |
5749 | if (!ha_locked) | |
5750 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2d70c103 | 5751 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)atio); |
2f424b9b QT |
5752 | if (!ha_locked) |
5753 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2d70c103 NB |
5754 | break; |
5755 | } | |
5756 | ||
5757 | default: | |
5758 | ql_dbg(ql_dbg_tgt, vha, 0xe05c, | |
5759 | "qla_target(%d): Received unknown ATIO atio " | |
5760 | "type %x\n", vha->vp_idx, atio->u.raw.entry_type); | |
5761 | break; | |
5762 | } | |
5763 | ||
2f424b9b | 5764 | tgt->atio_irq_cmd_count--; |
2d70c103 NB |
5765 | } |
5766 | ||
0691094f QT |
5767 | /* |
5768 | * qpair lock is assume to be held | |
5769 | * rc = 0 : send terminate & abts respond | |
5770 | * rc != 0: do not send term & abts respond | |
5771 | */ | |
5772 | static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha, | |
5773 | struct qla_qpair *qpair, struct abts_resp_from_24xx_fw *entry) | |
5774 | { | |
5775 | struct qla_hw_data *ha = vha->hw; | |
5776 | int rc = 0; | |
5777 | ||
5778 | /* | |
5779 | * Detect unresolved exchange. If the same ABTS is unable | |
5780 | * to terminate an existing command and the same ABTS loops | |
5781 | * between FW & Driver, then force FW dump. Under 1 jiff, | |
5782 | * we should see multiple loops. | |
5783 | */ | |
5784 | if (qpair->retry_term_exchg_addr == entry->exchange_addr_to_abort && | |
5785 | qpair->retry_term_jiff == jiffies) { | |
5786 | /* found existing exchange */ | |
5787 | qpair->retry_term_cnt++; | |
5788 | if (qpair->retry_term_cnt >= 5) { | |
5789 | rc = EIO; | |
5790 | qpair->retry_term_cnt = 0; | |
5791 | ql_log(ql_log_warn, vha, 0xffff, | |
5792 | "Unable to send ABTS Respond. Dumping firmware.\n"); | |
5793 | ql_dump_buffer(ql_dbg_tgt_mgt + ql_dbg_buffer, | |
5794 | vha, 0xffff, (uint8_t *)entry, sizeof(*entry)); | |
5795 | ||
5796 | if (qpair == ha->base_qpair) | |
5797 | ha->isp_ops->fw_dump(vha, 1); | |
5798 | else | |
5799 | ha->isp_ops->fw_dump(vha, 0); | |
5800 | ||
5801 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
5802 | qla2xxx_wake_dpc(vha); | |
5803 | } | |
5804 | } else if (qpair->retry_term_jiff != jiffies) { | |
5805 | qpair->retry_term_exchg_addr = entry->exchange_addr_to_abort; | |
5806 | qpair->retry_term_cnt = 0; | |
5807 | qpair->retry_term_jiff = jiffies; | |
5808 | } | |
5809 | ||
5810 | return rc; | |
5811 | } | |
5812 | ||
6b0431d6 QT |
5813 | |
5814 | static void qlt_handle_abts_completion(struct scsi_qla_host *vha, | |
5815 | struct rsp_que *rsp, response_t *pkt) | |
5816 | { | |
5817 | struct abts_resp_from_24xx_fw *entry = | |
5818 | (struct abts_resp_from_24xx_fw *)pkt; | |
5819 | u32 h = pkt->handle & ~QLA_TGT_HANDLE_MASK; | |
5820 | struct qla_tgt_mgmt_cmd *mcmd; | |
5821 | struct qla_hw_data *ha = vha->hw; | |
5822 | ||
5823 | mcmd = (struct qla_tgt_mgmt_cmd *)qlt_ctio_to_cmd(vha, rsp, | |
5824 | pkt->handle, pkt); | |
5825 | if (mcmd == NULL && h != QLA_TGT_SKIP_HANDLE) { | |
5826 | ql_dbg(ql_dbg_async, vha, 0xe064, | |
5827 | "qla_target(%d): ABTS Comp without mcmd\n", | |
5828 | vha->vp_idx); | |
5829 | return; | |
5830 | } | |
5831 | ||
5832 | if (mcmd) | |
5833 | vha = mcmd->vha; | |
5834 | vha->vha_tgt.qla_tgt->abts_resp_expected--; | |
5835 | ||
5836 | ql_dbg(ql_dbg_tgt, vha, 0xe038, | |
5837 | "ABTS_RESP_24XX: compl_status %x\n", | |
5838 | entry->compl_status); | |
5839 | ||
5840 | if (le16_to_cpu(entry->compl_status) != ABTS_RESP_COMPL_SUCCESS) { | |
5841 | if ((entry->error_subcode1 == 0x1E) && | |
5842 | (entry->error_subcode2 == 0)) { | |
5843 | if (qlt_chk_unresolv_exchg(vha, rsp->qpair, entry)) { | |
5844 | ha->tgt.tgt_ops->free_mcmd(mcmd); | |
5845 | return; | |
5846 | } | |
5847 | qlt_24xx_retry_term_exchange(vha, rsp->qpair, | |
5848 | pkt, mcmd); | |
5849 | } else { | |
5850 | ql_dbg(ql_dbg_tgt, vha, 0xe063, | |
5851 | "qla_target(%d): ABTS_RESP_24XX failed %x (subcode %x:%x)", | |
5852 | vha->vp_idx, entry->compl_status, | |
5853 | entry->error_subcode1, | |
5854 | entry->error_subcode2); | |
5855 | ha->tgt.tgt_ops->free_mcmd(mcmd); | |
5856 | } | |
5857 | } else { | |
5858 | ha->tgt.tgt_ops->free_mcmd(mcmd); | |
5859 | } | |
5860 | } | |
5861 | ||
2d70c103 NB |
5862 | /* ha->hardware_lock supposed to be held on entry */ |
5863 | /* called via callback from qla2xxx */ | |
82de802a QT |
5864 | static void qlt_response_pkt(struct scsi_qla_host *vha, |
5865 | struct rsp_que *rsp, response_t *pkt) | |
2d70c103 | 5866 | { |
0e8cd71c | 5867 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
5868 | |
5869 | if (unlikely(tgt == NULL)) { | |
5870 | ql_dbg(ql_dbg_tgt, vha, 0xe05d, | |
60a9eadb QT |
5871 | "qla_target(%d): Response pkt %x received, but no tgt (ha %p)\n", |
5872 | vha->vp_idx, pkt->entry_type, vha->hw); | |
2d70c103 NB |
5873 | return; |
5874 | } | |
5875 | ||
2d70c103 NB |
5876 | /* |
5877 | * In tgt_stop mode we also should allow all requests to pass. | |
5878 | * Otherwise, some commands can stuck. | |
5879 | */ | |
5880 | ||
2d70c103 | 5881 | switch (pkt->entry_type) { |
f83adb61 | 5882 | case CTIO_CRC2: |
2d70c103 NB |
5883 | case CTIO_TYPE7: |
5884 | { | |
5885 | struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt; | |
82de802a | 5886 | qlt_do_ctio_completion(vha, rsp, entry->handle, |
2d70c103 NB |
5887 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), |
5888 | entry); | |
5889 | break; | |
5890 | } | |
5891 | ||
5892 | case ACCEPT_TGT_IO_TYPE: | |
5893 | { | |
5894 | struct atio_from_isp *atio = (struct atio_from_isp *)pkt; | |
5895 | int rc; | |
2d70c103 | 5896 | if (atio->u.isp2x.status != |
ad950360 | 5897 | cpu_to_le16(ATIO_CDB_VALID)) { |
2d70c103 NB |
5898 | ql_dbg(ql_dbg_tgt, vha, 0xe05e, |
5899 | "qla_target(%d): ATIO with error " | |
5900 | "status %x received\n", vha->vp_idx, | |
5901 | le16_to_cpu(atio->u.isp2x.status)); | |
5902 | break; | |
5903 | } | |
2d70c103 | 5904 | |
82de802a | 5905 | rc = qlt_chk_qfull_thresh_hold(vha, rsp->qpair, atio, 1); |
ba68a635 | 5906 | if (rc != 0) |
33e79977 | 5907 | return; |
33e79977 | 5908 | |
2d70c103 NB |
5909 | rc = qlt_handle_cmd_for_atio(vha, atio); |
5910 | if (unlikely(rc != 0)) { | |
7cf95f7e QT |
5911 | switch (rc) { |
5912 | case -ENODEV: | |
5913 | ql_dbg(ql_dbg_tgt, vha, 0xe05f, | |
5914 | "qla_target: Unable to send command to target\n"); | |
5915 | break; | |
5916 | case -EBADF: | |
5917 | ql_dbg(ql_dbg_tgt, vha, 0xe05f, | |
5918 | "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n"); | |
5919 | qlt_send_term_exchange(rsp->qpair, NULL, | |
5920 | atio, 1, 0); | |
5921 | break; | |
5922 | case -EBUSY: | |
5923 | ql_dbg(ql_dbg_tgt, vha, 0xe060, | |
5924 | "qla_target(%d): Unable to send command to target, sending BUSY status\n", | |
5925 | vha->vp_idx); | |
5926 | qlt_send_busy(rsp->qpair, atio, | |
5927 | tc_sam_status); | |
5928 | break; | |
5929 | default: | |
5930 | ql_dbg(ql_dbg_tgt, vha, 0xe060, | |
5931 | "qla_target(%d): Unable to send command to target, sending BUSY status\n", | |
5932 | vha->vp_idx); | |
5933 | qlt_send_busy(rsp->qpair, atio, | |
5934 | qla_sam_status); | |
5935 | break; | |
2d70c103 NB |
5936 | } |
5937 | } | |
5938 | } | |
5939 | break; | |
5940 | ||
5941 | case CONTINUE_TGT_IO_TYPE: | |
5942 | { | |
5943 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
82de802a | 5944 | qlt_do_ctio_completion(vha, rsp, entry->handle, |
2d70c103 NB |
5945 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), |
5946 | entry); | |
5947 | break; | |
5948 | } | |
5949 | ||
5950 | case CTIO_A64_TYPE: | |
5951 | { | |
5952 | struct ctio_to_2xxx *entry = (struct ctio_to_2xxx *)pkt; | |
82de802a | 5953 | qlt_do_ctio_completion(vha, rsp, entry->handle, |
2d70c103 NB |
5954 | le16_to_cpu(entry->status)|(pkt->entry_status << 16), |
5955 | entry); | |
5956 | break; | |
5957 | } | |
5958 | ||
5959 | case IMMED_NOTIFY_TYPE: | |
5960 | ql_dbg(ql_dbg_tgt, vha, 0xe035, "%s", "IMMED_NOTIFY\n"); | |
5961 | qlt_handle_imm_notify(vha, (struct imm_ntfy_from_isp *)pkt); | |
5962 | break; | |
5963 | ||
5964 | case NOTIFY_ACK_TYPE: | |
5965 | if (tgt->notify_ack_expected > 0) { | |
5966 | struct nack_to_isp *entry = (struct nack_to_isp *)pkt; | |
5967 | ql_dbg(ql_dbg_tgt, vha, 0xe036, | |
5968 | "NOTIFY_ACK seq %08x status %x\n", | |
5969 | le16_to_cpu(entry->u.isp2x.seq_id), | |
5970 | le16_to_cpu(entry->u.isp2x.status)); | |
5971 | tgt->notify_ack_expected--; | |
5972 | if (entry->u.isp2x.status != | |
ad950360 | 5973 | cpu_to_le16(NOTIFY_ACK_SUCCESS)) { |
2d70c103 NB |
5974 | ql_dbg(ql_dbg_tgt, vha, 0xe061, |
5975 | "qla_target(%d): NOTIFY_ACK " | |
5976 | "failed %x\n", vha->vp_idx, | |
5977 | le16_to_cpu(entry->u.isp2x.status)); | |
5978 | } | |
5979 | } else { | |
5980 | ql_dbg(ql_dbg_tgt, vha, 0xe062, | |
5981 | "qla_target(%d): Unexpected NOTIFY_ACK received\n", | |
5982 | vha->vp_idx); | |
5983 | } | |
5984 | break; | |
5985 | ||
5986 | case ABTS_RECV_24XX: | |
5987 | ql_dbg(ql_dbg_tgt, vha, 0xe037, | |
5988 | "ABTS_RECV_24XX: instance %d\n", vha->vp_idx); | |
5989 | qlt_24xx_handle_abts(vha, (struct abts_recv_from_24xx *)pkt); | |
5990 | break; | |
5991 | ||
5992 | case ABTS_RESP_24XX: | |
5993 | if (tgt->abts_resp_expected > 0) { | |
6b0431d6 | 5994 | qlt_handle_abts_completion(vha, rsp, pkt); |
2d70c103 NB |
5995 | } else { |
5996 | ql_dbg(ql_dbg_tgt, vha, 0xe064, | |
5997 | "qla_target(%d): Unexpected ABTS_RESP_24XX " | |
5998 | "received\n", vha->vp_idx); | |
5999 | } | |
6000 | break; | |
6001 | ||
6002 | default: | |
6003 | ql_dbg(ql_dbg_tgt, vha, 0xe065, | |
6004 | "qla_target(%d): Received unknown response pkt " | |
6005 | "type %x\n", vha->vp_idx, pkt->entry_type); | |
6006 | break; | |
6007 | } | |
6008 | ||
2d70c103 NB |
6009 | } |
6010 | ||
6011 | /* | |
6012 | * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire | |
6013 | */ | |
6014 | void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, | |
6015 | uint16_t *mailbox) | |
6016 | { | |
6017 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6018 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
4f1d0f19 | 6019 | int login_code; |
2d70c103 | 6020 | |
3a33dc95 | 6021 | if (!tgt || tgt->tgt_stop || tgt->tgt_stopped) |
2d70c103 NB |
6022 | return; |
6023 | ||
2d70c103 NB |
6024 | if (((code == MBA_POINT_TO_POINT) || (code == MBA_CHG_IN_CONNECTION)) && |
6025 | IS_QLA2100(ha)) | |
6026 | return; | |
6027 | /* | |
6028 | * In tgt_stop mode we also should allow all requests to pass. | |
6029 | * Otherwise, some commands can stuck. | |
6030 | */ | |
6031 | ||
2d70c103 NB |
6032 | |
6033 | switch (code) { | |
6034 | case MBA_RESET: /* Reset */ | |
6035 | case MBA_SYSTEM_ERR: /* System Error */ | |
6036 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ | |
6037 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ | |
6038 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03a, | |
6039 | "qla_target(%d): System error async event %#x " | |
6efb3c0a | 6040 | "occurred", vha->vp_idx, code); |
2d70c103 NB |
6041 | break; |
6042 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up. */ | |
6043 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
6044 | break; | |
6045 | ||
6046 | case MBA_LOOP_UP: | |
6047 | { | |
6048 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b, | |
6efb3c0a | 6049 | "qla_target(%d): Async LOOP_UP occurred " |
4f1d0f19 AC |
6050 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, |
6051 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
6052 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 | 6053 | if (tgt->link_reinit_iocb_pending) { |
82de802a QT |
6054 | qlt_send_notify_ack(ha->base_qpair, |
6055 | (void *)&tgt->link_reinit_iocb, | |
2d70c103 NB |
6056 | 0, 0, 0, 0, 0, 0); |
6057 | tgt->link_reinit_iocb_pending = 0; | |
6058 | } | |
6059 | break; | |
6060 | } | |
6061 | ||
6062 | case MBA_LIP_OCCURRED: | |
6063 | case MBA_LOOP_DOWN: | |
6064 | case MBA_LIP_RESET: | |
6065 | case MBA_RSCN_UPDATE: | |
6066 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c, | |
6efb3c0a | 6067 | "qla_target(%d): Async event %#x occurred " |
4f1d0f19 AC |
6068 | "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
6069 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
6070 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
2d70c103 NB |
6071 | break; |
6072 | ||
ead03855 | 6073 | case MBA_REJECTED_FCP_CMD: |
83548fe2 QT |
6074 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf017, |
6075 | "qla_target(%d): Async event LS_REJECT occurred (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", | |
6076 | vha->vp_idx, | |
6077 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
6078 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
ead03855 QT |
6079 | |
6080 | if (le16_to_cpu(mailbox[3]) == 1) { | |
6081 | /* exchange starvation. */ | |
6082 | vha->hw->exch_starvation++; | |
6083 | if (vha->hw->exch_starvation > 5) { | |
83548fe2 | 6084 | ql_log(ql_log_warn, vha, 0xd03a, |
ead03855 QT |
6085 | "Exchange starvation-. Resetting RISC\n"); |
6086 | ||
6087 | vha->hw->exch_starvation = 0; | |
6088 | if (IS_P3P_TYPE(vha->hw)) | |
6089 | set_bit(FCOE_CTX_RESET_NEEDED, | |
6090 | &vha->dpc_flags); | |
6091 | else | |
6092 | set_bit(ISP_ABORT_NEEDED, | |
6093 | &vha->dpc_flags); | |
6094 | qla2xxx_wake_dpc(vha); | |
6095 | } | |
6096 | } | |
6097 | break; | |
6098 | ||
2d70c103 NB |
6099 | case MBA_PORT_UPDATE: |
6100 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d, | |
6101 | "qla_target(%d): Port update async event %#x " | |
6efb3c0a | 6102 | "occurred: updating the ports database (m[0]=%x, m[1]=%x, " |
4f1d0f19 AC |
6103 | "m[2]=%x, m[3]=%x)", vha->vp_idx, code, |
6104 | le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), | |
6105 | le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); | |
6106 | ||
6107 | login_code = le16_to_cpu(mailbox[2]); | |
ead03855 | 6108 | if (login_code == 0x4) { |
2d70c103 NB |
6109 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e, |
6110 | "Async MB 2: Got PLOGI Complete\n"); | |
ead03855 QT |
6111 | vha->hw->exch_starvation = 0; |
6112 | } else if (login_code == 0x7) | |
2d70c103 NB |
6113 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f, |
6114 | "Async MB 2: Port Logged Out\n"); | |
6115 | break; | |
2d70c103 | 6116 | default: |
2d70c103 NB |
6117 | break; |
6118 | } | |
6119 | ||
2d70c103 NB |
6120 | } |
6121 | ||
6122 | static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha, | |
6123 | uint16_t loop_id) | |
6124 | { | |
726b8548 | 6125 | fc_port_t *fcport, *tfcp, *del; |
2d70c103 | 6126 | int rc; |
726b8548 QT |
6127 | unsigned long flags; |
6128 | u8 newfcport = 0; | |
2d70c103 | 6129 | |
063b36d6 | 6130 | fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); |
2d70c103 NB |
6131 | if (!fcport) { |
6132 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f, | |
6133 | "qla_target(%d): Allocation of tmp FC port failed", | |
6134 | vha->vp_idx); | |
6135 | return NULL; | |
6136 | } | |
6137 | ||
2d70c103 NB |
6138 | fcport->loop_id = loop_id; |
6139 | ||
15f30a57 | 6140 | rc = qla24xx_gpdb_wait(vha, fcport, 0); |
2d70c103 NB |
6141 | if (rc != QLA_SUCCESS) { |
6142 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070, | |
6143 | "qla_target(%d): Failed to retrieve fcport " | |
6144 | "information -- get_port_database() returned %x " | |
6145 | "(loop_id=0x%04x)", vha->vp_idx, rc, loop_id); | |
6146 | kfree(fcport); | |
6147 | return NULL; | |
6148 | } | |
6149 | ||
726b8548 QT |
6150 | del = NULL; |
6151 | spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags); | |
6152 | tfcp = qla2x00_find_fcport_by_wwpn(vha, fcport->port_name, 1); | |
6153 | ||
6154 | if (tfcp) { | |
6155 | tfcp->d_id = fcport->d_id; | |
6156 | tfcp->port_type = fcport->port_type; | |
6157 | tfcp->supported_classes = fcport->supported_classes; | |
6158 | tfcp->flags |= fcport->flags; | |
76f9a2dd | 6159 | tfcp->scan_state = QLA_FCPORT_FOUND; |
726b8548 QT |
6160 | |
6161 | del = fcport; | |
6162 | fcport = tfcp; | |
6163 | } else { | |
6164 | if (vha->hw->current_topology == ISP_CFG_F) | |
6165 | fcport->flags |= FCF_FABRIC_DEVICE; | |
6166 | ||
6167 | list_add_tail(&fcport->list, &vha->vp_fcports); | |
6168 | if (!IS_SW_RESV_ADDR(fcport->d_id)) | |
6169 | vha->fcport_count++; | |
6170 | fcport->login_gen++; | |
6171 | fcport->disc_state = DSC_LOGIN_COMPLETE; | |
6172 | fcport->login_succ = 1; | |
6173 | newfcport = 1; | |
6174 | } | |
6175 | ||
6176 | fcport->deleted = 0; | |
6177 | spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags); | |
6178 | ||
6179 | switch (vha->host->active_mode) { | |
6180 | case MODE_INITIATOR: | |
6181 | case MODE_DUAL: | |
6182 | if (newfcport) { | |
6183 | if (!IS_IIDMA_CAPABLE(vha->hw) || !vha->hw->flags.gpsc_supported) { | |
cd4ed6b4 | 6184 | qla24xx_sched_upd_fcport(fcport); |
726b8548 | 6185 | } else { |
83548fe2 | 6186 | ql_dbg(ql_dbg_disc, vha, 0x20ff, |
726b8548 QT |
6187 | "%s %d %8phC post gpsc fcp_cnt %d\n", |
6188 | __func__, __LINE__, fcport->port_name, vha->fcport_count); | |
6189 | qla24xx_post_gpsc_work(vha, fcport); | |
6190 | } | |
6191 | } | |
6192 | break; | |
6193 | ||
6194 | case MODE_TARGET: | |
6195 | default: | |
6196 | break; | |
6197 | } | |
6198 | if (del) | |
6199 | qla2x00_free_fcport(del); | |
6200 | ||
2d70c103 NB |
6201 | return fcport; |
6202 | } | |
6203 | ||
6204 | /* Must be called under tgt_mutex */ | |
5d964837 | 6205 | static struct fc_port *qlt_make_local_sess(struct scsi_qla_host *vha, |
2d70c103 NB |
6206 | uint8_t *s_id) |
6207 | { | |
5d964837 | 6208 | struct fc_port *sess = NULL; |
2d70c103 NB |
6209 | fc_port_t *fcport = NULL; |
6210 | int rc, global_resets; | |
6211 | uint16_t loop_id = 0; | |
6212 | ||
726b8548 QT |
6213 | if ((s_id[0] == 0xFF) && (s_id[1] == 0xFC)) { |
6214 | /* | |
6215 | * This is Domain Controller, so it should be | |
6216 | * OK to drop SCSI commands from it. | |
6217 | */ | |
6218 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf042, | |
6219 | "Unable to find initiator with S_ID %x:%x:%x", | |
6220 | s_id[0], s_id[1], s_id[2]); | |
6221 | return NULL; | |
6222 | } | |
6223 | ||
71cdc079 AP |
6224 | mutex_lock(&vha->vha_tgt.tgt_mutex); |
6225 | ||
2d70c103 | 6226 | retry: |
0e8cd71c SK |
6227 | global_resets = |
6228 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count); | |
2d70c103 NB |
6229 | |
6230 | rc = qla24xx_get_loop_id(vha, s_id, &loop_id); | |
6231 | if (rc != 0) { | |
71cdc079 AP |
6232 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
6233 | ||
726b8548 QT |
6234 | ql_log(ql_log_info, vha, 0xf071, |
6235 | "qla_target(%d): Unable to find " | |
6236 | "initiator with S_ID %x:%x:%x", | |
6237 | vha->vp_idx, s_id[0], s_id[1], | |
6238 | s_id[2]); | |
71cdc079 AP |
6239 | |
6240 | if (rc == -ENOENT) { | |
6241 | qlt_port_logo_t logo; | |
6242 | sid_to_portid(s_id, &logo.id); | |
6243 | logo.cmd_count = 1; | |
6244 | qlt_send_first_logo(vha, &logo); | |
6245 | } | |
6246 | ||
2d70c103 NB |
6247 | return NULL; |
6248 | } | |
6249 | ||
6250 | fcport = qlt_get_port_database(vha, loop_id); | |
71cdc079 AP |
6251 | if (!fcport) { |
6252 | mutex_unlock(&vha->vha_tgt.tgt_mutex); | |
2d70c103 | 6253 | return NULL; |
71cdc079 | 6254 | } |
2d70c103 NB |
6255 | |
6256 | if (global_resets != | |
0e8cd71c | 6257 | atomic_read(&vha->vha_tgt.qla_tgt->tgt_global_resets_count)) { |
2d70c103 NB |
6258 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf043, |
6259 | "qla_target(%d): global reset during session discovery " | |
6260 | "(counter was %d, new %d), retrying", vha->vp_idx, | |
6261 | global_resets, | |
0e8cd71c SK |
6262 | atomic_read(&vha->vha_tgt. |
6263 | qla_tgt->tgt_global_resets_count)); | |
2d70c103 NB |
6264 | goto retry; |
6265 | } | |
6266 | ||
6267 | sess = qlt_create_sess(vha, fcport, true); | |
6268 | ||
71cdc079 AP |
6269 | mutex_unlock(&vha->vha_tgt.tgt_mutex); |
6270 | ||
2d70c103 NB |
6271 | return sess; |
6272 | } | |
6273 | ||
6274 | static void qlt_abort_work(struct qla_tgt *tgt, | |
6275 | struct qla_tgt_sess_work_param *prm) | |
6276 | { | |
6277 | struct scsi_qla_host *vha = tgt->vha; | |
6278 | struct qla_hw_data *ha = vha->hw; | |
5d964837 | 6279 | struct fc_port *sess = NULL; |
7560151b | 6280 | unsigned long flags = 0, flags2 = 0; |
2d70c103 NB |
6281 | uint32_t be_s_id; |
6282 | uint8_t s_id[3]; | |
6283 | int rc; | |
6284 | ||
7560151b | 6285 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 NB |
6286 | |
6287 | if (tgt->tgt_stop) | |
7560151b | 6288 | goto out_term2; |
2d70c103 NB |
6289 | |
6290 | s_id[0] = prm->abts.fcp_hdr_le.s_id[2]; | |
6291 | s_id[1] = prm->abts.fcp_hdr_le.s_id[1]; | |
6292 | s_id[2] = prm->abts.fcp_hdr_le.s_id[0]; | |
6293 | ||
6294 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, | |
6295 | (unsigned char *)&be_s_id); | |
6296 | if (!sess) { | |
7560151b | 6297 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); |
2d70c103 | 6298 | |
2d70c103 NB |
6299 | sess = qlt_make_local_sess(vha, s_id); |
6300 | /* sess has got an extra creation ref */ | |
2d70c103 | 6301 | |
7560151b | 6302 | spin_lock_irqsave(&ha->tgt.sess_lock, flags2); |
2d70c103 | 6303 | if (!sess) |
7560151b | 6304 | goto out_term2; |
2d70c103 | 6305 | } else { |
726b8548 | 6306 | if (sess->deleted) { |
e52a8b45 | 6307 | sess = NULL; |
7560151b | 6308 | goto out_term2; |
e52a8b45 AP |
6309 | } |
6310 | ||
726b8548 | 6311 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 6312 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf01c, |
726b8548 QT |
6313 | "%s: kref_get fail %8phC \n", |
6314 | __func__, sess->port_name); | |
6315 | sess = NULL; | |
6316 | goto out_term2; | |
6317 | } | |
2d70c103 NB |
6318 | } |
6319 | ||
2d70c103 | 6320 | rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess); |
f159b3c7 QT |
6321 | ha->tgt.tgt_ops->put_sess(sess); |
6322 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
6323 | ||
2d70c103 NB |
6324 | if (rc != 0) |
6325 | goto out_term; | |
2d70c103 NB |
6326 | return; |
6327 | ||
7560151b | 6328 | out_term2: |
f159b3c7 QT |
6329 | if (sess) |
6330 | ha->tgt.tgt_ops->put_sess(sess); | |
6331 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); | |
7560151b | 6332 | |
2d70c103 | 6333 | out_term: |
f159b3c7 | 6334 | spin_lock_irqsave(&ha->hardware_lock, flags); |
82de802a QT |
6335 | qlt_24xx_send_abts_resp(ha->base_qpair, &prm->abts, |
6336 | FCP_TMF_REJECTED, false); | |
7560151b | 6337 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2d70c103 NB |
6338 | } |
6339 | ||
6340 | static void qlt_tmr_work(struct qla_tgt *tgt, | |
6341 | struct qla_tgt_sess_work_param *prm) | |
6342 | { | |
6343 | struct atio_from_isp *a = &prm->tm_iocb2; | |
6344 | struct scsi_qla_host *vha = tgt->vha; | |
6345 | struct qla_hw_data *ha = vha->hw; | |
bb6abdd4 | 6346 | struct fc_port *sess; |
2d70c103 NB |
6347 | unsigned long flags; |
6348 | uint8_t *s_id = NULL; /* to hide compiler warnings */ | |
6349 | int rc; | |
f775bd14 | 6350 | u64 unpacked_lun; |
52c82823 | 6351 | int fn; |
2d70c103 NB |
6352 | void *iocb; |
6353 | ||
7560151b | 6354 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 NB |
6355 | |
6356 | if (tgt->tgt_stop) | |
f159b3c7 | 6357 | goto out_term2; |
2d70c103 NB |
6358 | |
6359 | s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id; | |
6360 | sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); | |
6361 | if (!sess) { | |
7560151b | 6362 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 6363 | |
2d70c103 NB |
6364 | sess = qlt_make_local_sess(vha, s_id); |
6365 | /* sess has got an extra creation ref */ | |
2d70c103 | 6366 | |
7560151b | 6367 | spin_lock_irqsave(&ha->tgt.sess_lock, flags); |
2d70c103 | 6368 | if (!sess) |
f159b3c7 | 6369 | goto out_term2; |
2d70c103 | 6370 | } else { |
726b8548 | 6371 | if (sess->deleted) { |
f159b3c7 | 6372 | goto out_term2; |
e52a8b45 AP |
6373 | } |
6374 | ||
726b8548 | 6375 | if (!kref_get_unless_zero(&sess->sess_kref)) { |
83548fe2 | 6376 | ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020, |
726b8548 QT |
6377 | "%s: kref_get fail %8phC\n", |
6378 | __func__, sess->port_name); | |
f159b3c7 | 6379 | goto out_term2; |
726b8548 | 6380 | } |
2d70c103 NB |
6381 | } |
6382 | ||
6383 | iocb = a; | |
2d70c103 | 6384 | fn = a->u.isp24.fcp_cmnd.task_mgmt_flags; |
f775bd14 QT |
6385 | unpacked_lun = |
6386 | scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun); | |
2d70c103 NB |
6387 | |
6388 | rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); | |
5d964837 | 6389 | ha->tgt.tgt_ops->put_sess(sess); |
7560151b | 6390 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
f159b3c7 QT |
6391 | |
6392 | if (rc != 0) | |
6393 | goto out_term; | |
2d70c103 NB |
6394 | return; |
6395 | ||
f159b3c7 | 6396 | out_term2: |
f159b3c7 | 6397 | spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); |
2d70c103 | 6398 | out_term: |
82de802a | 6399 | qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0); |
2d70c103 NB |
6400 | } |
6401 | ||
6402 | static void qlt_sess_work_fn(struct work_struct *work) | |
6403 | { | |
6404 | struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work); | |
6405 | struct scsi_qla_host *vha = tgt->vha; | |
6406 | unsigned long flags; | |
6407 | ||
6408 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf000, "Sess work (tgt %p)", tgt); | |
6409 | ||
6410 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
6411 | while (!list_empty(&tgt->sess_works_list)) { | |
6412 | struct qla_tgt_sess_work_param *prm = list_entry( | |
6413 | tgt->sess_works_list.next, typeof(*prm), | |
6414 | sess_works_list_entry); | |
6415 | ||
6416 | /* | |
6417 | * This work can be scheduled on several CPUs at time, so we | |
6418 | * must delete the entry to eliminate double processing | |
6419 | */ | |
6420 | list_del(&prm->sess_works_list_entry); | |
6421 | ||
6422 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
6423 | ||
6424 | switch (prm->type) { | |
6425 | case QLA_TGT_SESS_WORK_ABORT: | |
6426 | qlt_abort_work(tgt, prm); | |
6427 | break; | |
6428 | case QLA_TGT_SESS_WORK_TM: | |
6429 | qlt_tmr_work(tgt, prm); | |
6430 | break; | |
6431 | default: | |
6432 | BUG_ON(1); | |
6433 | break; | |
6434 | } | |
6435 | ||
6436 | spin_lock_irqsave(&tgt->sess_work_lock, flags); | |
6437 | ||
6438 | kfree(prm); | |
6439 | } | |
6440 | spin_unlock_irqrestore(&tgt->sess_work_lock, flags); | |
6441 | } | |
6442 | ||
6443 | /* Must be called under tgt_host_action_mutex */ | |
6444 | int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) | |
6445 | { | |
6446 | struct qla_tgt *tgt; | |
e326d22a QT |
6447 | int rc, i; |
6448 | struct qla_qpair_hint *h; | |
2d70c103 NB |
6449 | |
6450 | if (!QLA_TGT_MODE_ENABLED()) | |
6451 | return 0; | |
6452 | ||
33c36c0a AE |
6453 | if (!IS_TGT_MODE_CAPABLE(ha)) { |
6454 | ql_log(ql_log_warn, base_vha, 0xe070, | |
6455 | "This adapter does not support target mode.\n"); | |
6456 | return 0; | |
6457 | } | |
6458 | ||
2d70c103 | 6459 | ql_dbg(ql_dbg_tgt, base_vha, 0xe03b, |
0e8cd71c | 6460 | "Registering target for host %ld(%p).\n", base_vha->host_no, ha); |
2d70c103 | 6461 | |
0e8cd71c | 6462 | BUG_ON(base_vha->vha_tgt.qla_tgt != NULL); |
2d70c103 NB |
6463 | |
6464 | tgt = kzalloc(sizeof(struct qla_tgt), GFP_KERNEL); | |
6465 | if (!tgt) { | |
6466 | ql_dbg(ql_dbg_tgt, base_vha, 0xe066, | |
6467 | "Unable to allocate struct qla_tgt\n"); | |
6468 | return -ENOMEM; | |
6469 | } | |
6470 | ||
6396bb22 KC |
6471 | tgt->qphints = kcalloc(ha->max_qpairs + 1, |
6472 | sizeof(struct qla_qpair_hint), | |
6473 | GFP_KERNEL); | |
e326d22a QT |
6474 | if (!tgt->qphints) { |
6475 | kfree(tgt); | |
6476 | ql_log(ql_log_warn, base_vha, 0x0197, | |
6477 | "Unable to allocate qpair hints.\n"); | |
6478 | return -ENOMEM; | |
6479 | } | |
6480 | ||
2d70c103 NB |
6481 | if (!(base_vha->host->hostt->supported_mode & MODE_TARGET)) |
6482 | base_vha->host->hostt->supported_mode |= MODE_TARGET; | |
6483 | ||
e326d22a QT |
6484 | rc = btree_init64(&tgt->lun_qpair_map); |
6485 | if (rc) { | |
6486 | kfree(tgt->qphints); | |
6487 | kfree(tgt); | |
6488 | ql_log(ql_log_info, base_vha, 0x0198, | |
6489 | "Unable to initialize lun_qpair_map btree\n"); | |
6490 | return -EIO; | |
6491 | } | |
6492 | h = &tgt->qphints[0]; | |
6493 | h->qpair = ha->base_qpair; | |
6494 | INIT_LIST_HEAD(&h->hint_elem); | |
6495 | h->cpuid = ha->base_qpair->cpuid; | |
6496 | list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list); | |
6497 | ||
6498 | for (i = 0; i < ha->max_qpairs; i++) { | |
6499 | unsigned long flags; | |
6500 | ||
6501 | struct qla_qpair *qpair = ha->queue_pair_map[i]; | |
6502 | h = &tgt->qphints[i + 1]; | |
6503 | INIT_LIST_HEAD(&h->hint_elem); | |
6504 | if (qpair) { | |
6505 | h->qpair = qpair; | |
6506 | spin_lock_irqsave(qpair->qp_lock_ptr, flags); | |
6507 | list_add_tail(&h->hint_elem, &qpair->hints_list); | |
6508 | spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); | |
6509 | h->cpuid = qpair->cpuid; | |
6510 | } | |
6511 | } | |
6512 | ||
2d70c103 NB |
6513 | tgt->ha = ha; |
6514 | tgt->vha = base_vha; | |
6515 | init_waitqueue_head(&tgt->waitQ); | |
2d70c103 | 6516 | INIT_LIST_HEAD(&tgt->del_sess_list); |
2d70c103 NB |
6517 | spin_lock_init(&tgt->sess_work_lock); |
6518 | INIT_WORK(&tgt->sess_work, qlt_sess_work_fn); | |
6519 | INIT_LIST_HEAD(&tgt->sess_works_list); | |
2d70c103 NB |
6520 | atomic_set(&tgt->tgt_global_resets_count, 0); |
6521 | ||
0e8cd71c | 6522 | base_vha->vha_tgt.qla_tgt = tgt; |
2d70c103 NB |
6523 | |
6524 | ql_dbg(ql_dbg_tgt, base_vha, 0xe067, | |
6525 | "qla_target(%d): using 64 Bit PCI addressing", | |
6526 | base_vha->vp_idx); | |
2d70c103 NB |
6527 | /* 3 is reserved */ |
6528 | tgt->sg_tablesize = QLA_TGT_MAX_SG_24XX(base_vha->req->length - 3); | |
2d70c103 NB |
6529 | |
6530 | mutex_lock(&qla_tgt_mutex); | |
6531 | list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist); | |
6532 | mutex_unlock(&qla_tgt_mutex); | |
6533 | ||
f1443eeb QT |
6534 | if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target) |
6535 | ha->tgt.tgt_ops->add_target(base_vha); | |
6536 | ||
2d70c103 NB |
6537 | return 0; |
6538 | } | |
6539 | ||
6540 | /* Must be called under tgt_host_action_mutex */ | |
6541 | int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha) | |
6542 | { | |
0e8cd71c | 6543 | if (!vha->vha_tgt.qla_tgt) |
2d70c103 NB |
6544 | return 0; |
6545 | ||
ddb95145 NB |
6546 | if (vha->fc_vport) { |
6547 | qlt_release(vha->vha_tgt.qla_tgt); | |
6548 | return 0; | |
6549 | } | |
33e79977 QT |
6550 | |
6551 | /* free left over qfull cmds */ | |
6552 | qlt_init_term_exchange(vha); | |
6553 | ||
2d70c103 NB |
6554 | ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)", |
6555 | vha->host_no, ha); | |
0e8cd71c | 6556 | qlt_release(vha->vha_tgt.qla_tgt); |
2d70c103 NB |
6557 | |
6558 | return 0; | |
6559 | } | |
6560 | ||
482c9dc7 QT |
6561 | void qlt_remove_target_resources(struct qla_hw_data *ha) |
6562 | { | |
6563 | struct scsi_qla_host *node; | |
6564 | u32 key = 0; | |
6565 | ||
6566 | btree_for_each_safe32(&ha->tgt.host_map, key, node) | |
6567 | btree_remove32(&ha->tgt.host_map, key); | |
6568 | ||
6569 | btree_destroy32(&ha->tgt.host_map); | |
6570 | } | |
6571 | ||
2d70c103 NB |
6572 | static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn, |
6573 | unsigned char *b) | |
6574 | { | |
6575 | int i; | |
6576 | ||
6577 | pr_debug("qla2xxx HW vha->node_name: "); | |
6578 | for (i = 0; i < WWN_SIZE; i++) | |
6579 | pr_debug("%02x ", vha->node_name[i]); | |
6580 | pr_debug("\n"); | |
6581 | pr_debug("qla2xxx HW vha->port_name: "); | |
6582 | for (i = 0; i < WWN_SIZE; i++) | |
6583 | pr_debug("%02x ", vha->port_name[i]); | |
6584 | pr_debug("\n"); | |
6585 | ||
6586 | pr_debug("qla2xxx passed configfs WWPN: "); | |
6587 | put_unaligned_be64(wwpn, b); | |
6588 | for (i = 0; i < WWN_SIZE; i++) | |
6589 | pr_debug("%02x ", b[i]); | |
6590 | pr_debug("\n"); | |
6591 | } | |
6592 | ||
6593 | /** | |
6594 | * qla_tgt_lport_register - register lport with external module | |
6595 | * | |
2d70c103 | 6596 | * @target_lport_ptr: pointer for tcm_qla2xxx specific lport data |
807eb907 BVA |
6597 | * @phys_wwpn: physical port WWPN |
6598 | * @npiv_wwpn: NPIV WWPN | |
6599 | * @npiv_wwnn: NPIV WWNN | |
2db6228d | 6600 | * @callback: lport initialization callback for tcm_qla2xxx code |
2d70c103 | 6601 | */ |
49a47f2c NB |
6602 | int qlt_lport_register(void *target_lport_ptr, u64 phys_wwpn, |
6603 | u64 npiv_wwpn, u64 npiv_wwnn, | |
6604 | int (*callback)(struct scsi_qla_host *, void *, u64, u64)) | |
2d70c103 NB |
6605 | { |
6606 | struct qla_tgt *tgt; | |
6607 | struct scsi_qla_host *vha; | |
6608 | struct qla_hw_data *ha; | |
6609 | struct Scsi_Host *host; | |
6610 | unsigned long flags; | |
6611 | int rc; | |
6612 | u8 b[WWN_SIZE]; | |
6613 | ||
6614 | mutex_lock(&qla_tgt_mutex); | |
6615 | list_for_each_entry(tgt, &qla_tgt_glist, tgt_list_entry) { | |
6616 | vha = tgt->vha; | |
6617 | ha = vha->hw; | |
6618 | ||
6619 | host = vha->host; | |
6620 | if (!host) | |
6621 | continue; | |
6622 | ||
2d70c103 NB |
6623 | if (!(host->hostt->supported_mode & MODE_TARGET)) |
6624 | continue; | |
6625 | ||
0645cb83 QT |
6626 | if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED) |
6627 | continue; | |
6628 | ||
2d70c103 | 6629 | spin_lock_irqsave(&ha->hardware_lock, flags); |
49a47f2c | 6630 | if ((!npiv_wwpn || !npiv_wwnn) && host->active_mode & MODE_TARGET) { |
2d70c103 NB |
6631 | pr_debug("MODE_TARGET already active on qla2xxx(%d)\n", |
6632 | host->host_no); | |
6633 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6634 | continue; | |
6635 | } | |
ddb95145 NB |
6636 | if (tgt->tgt_stop) { |
6637 | pr_debug("MODE_TARGET in shutdown on qla2xxx(%d)\n", | |
6638 | host->host_no); | |
6639 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6640 | continue; | |
6641 | } | |
2d70c103 NB |
6642 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
6643 | ||
6644 | if (!scsi_host_get(host)) { | |
6645 | ql_dbg(ql_dbg_tgt, vha, 0xe068, | |
6646 | "Unable to scsi_host_get() for" | |
6647 | " qla2xxx scsi_host\n"); | |
6648 | continue; | |
6649 | } | |
49a47f2c | 6650 | qlt_lport_dump(vha, phys_wwpn, b); |
2d70c103 NB |
6651 | |
6652 | if (memcmp(vha->port_name, b, WWN_SIZE)) { | |
6653 | scsi_host_put(host); | |
6654 | continue; | |
6655 | } | |
49a47f2c NB |
6656 | rc = (*callback)(vha, target_lport_ptr, npiv_wwpn, npiv_wwnn); |
6657 | if (rc != 0) | |
6658 | scsi_host_put(host); | |
6659 | ||
ddb95145 | 6660 | mutex_unlock(&qla_tgt_mutex); |
2d70c103 NB |
6661 | return rc; |
6662 | } | |
6663 | mutex_unlock(&qla_tgt_mutex); | |
6664 | ||
6665 | return -ENODEV; | |
6666 | } | |
6667 | EXPORT_SYMBOL(qlt_lport_register); | |
6668 | ||
6669 | /** | |
6670 | * qla_tgt_lport_deregister - Degister lport | |
6671 | * | |
6672 | * @vha: Registered scsi_qla_host pointer | |
6673 | */ | |
6674 | void qlt_lport_deregister(struct scsi_qla_host *vha) | |
6675 | { | |
6676 | struct qla_hw_data *ha = vha->hw; | |
6677 | struct Scsi_Host *sh = vha->host; | |
6678 | /* | |
6679 | * Clear the target_lport_ptr qla_target_template pointer in qla_hw_data | |
6680 | */ | |
0e8cd71c | 6681 | vha->vha_tgt.target_lport_ptr = NULL; |
2d70c103 NB |
6682 | ha->tgt.tgt_ops = NULL; |
6683 | /* | |
6684 | * Release the Scsi_Host reference for the underlying qla2xxx host | |
6685 | */ | |
6686 | scsi_host_put(sh); | |
6687 | } | |
6688 | EXPORT_SYMBOL(qlt_lport_deregister); | |
6689 | ||
6690 | /* Must be called under HW lock */ | |
0645cb83 | 6691 | void qlt_set_mode(struct scsi_qla_host *vha) |
2d70c103 | 6692 | { |
0645cb83 | 6693 | switch (vha->qlini_mode) { |
2d70c103 NB |
6694 | case QLA2XXX_INI_MODE_DISABLED: |
6695 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6696 | vha->host->active_mode = MODE_TARGET; | |
6697 | break; | |
6698 | case QLA2XXX_INI_MODE_ENABLED: | |
0645cb83 | 6699 | vha->host->active_mode = MODE_INITIATOR; |
ead03855 QT |
6700 | break; |
6701 | case QLA2XXX_INI_MODE_DUAL: | |
6702 | vha->host->active_mode = MODE_DUAL; | |
2d70c103 NB |
6703 | break; |
6704 | default: | |
6705 | break; | |
6706 | } | |
2d70c103 NB |
6707 | } |
6708 | ||
6709 | /* Must be called under HW lock */ | |
55a9066f | 6710 | static void qlt_clear_mode(struct scsi_qla_host *vha) |
2d70c103 | 6711 | { |
0645cb83 | 6712 | switch (vha->qlini_mode) { |
2d70c103 NB |
6713 | case QLA2XXX_INI_MODE_DISABLED: |
6714 | vha->host->active_mode = MODE_UNKNOWN; | |
6715 | break; | |
6716 | case QLA2XXX_INI_MODE_EXCLUSIVE: | |
6717 | vha->host->active_mode = MODE_INITIATOR; | |
6718 | break; | |
6719 | case QLA2XXX_INI_MODE_ENABLED: | |
ead03855 QT |
6720 | case QLA2XXX_INI_MODE_DUAL: |
6721 | vha->host->active_mode = MODE_INITIATOR; | |
2d70c103 NB |
6722 | break; |
6723 | default: | |
6724 | break; | |
6725 | } | |
2d70c103 NB |
6726 | } |
6727 | ||
6728 | /* | |
6729 | * qla_tgt_enable_vha - NO LOCK HELD | |
6730 | * | |
6731 | * host_reset, bring up w/ Target Mode Enabled | |
6732 | */ | |
6733 | void | |
6734 | qlt_enable_vha(struct scsi_qla_host *vha) | |
6735 | { | |
6736 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6737 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 | 6738 | unsigned long flags; |
0e8cd71c | 6739 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); |
2d70c103 NB |
6740 | |
6741 | if (!tgt) { | |
6742 | ql_dbg(ql_dbg_tgt, vha, 0xe069, | |
6743 | "Unable to locate qla_tgt pointer from" | |
6744 | " struct qla_hw_data\n"); | |
6745 | dump_stack(); | |
6746 | return; | |
6747 | } | |
0645cb83 QT |
6748 | if (vha->qlini_mode == QLA2XXX_INI_MODE_ENABLED) |
6749 | return; | |
2d70c103 NB |
6750 | |
6751 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6752 | tgt->tgt_stopped = 0; | |
6753 | qlt_set_mode(vha); | |
6754 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6755 | ||
b6faaaf7 QT |
6756 | mutex_lock(&ha->optrom_mutex); |
6757 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf021, | |
6758 | "%s.\n", __func__); | |
0e8cd71c SK |
6759 | if (vha->vp_idx) { |
6760 | qla24xx_disable_vp(vha); | |
6761 | qla24xx_enable_vp(vha); | |
6762 | } else { | |
6763 | set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); | |
6764 | qla2xxx_wake_dpc(base_vha); | |
6765 | qla2x00_wait_for_hba_online(base_vha); | |
6766 | } | |
b6faaaf7 | 6767 | mutex_unlock(&ha->optrom_mutex); |
2d70c103 NB |
6768 | } |
6769 | EXPORT_SYMBOL(qlt_enable_vha); | |
6770 | ||
6771 | /* | |
6772 | * qla_tgt_disable_vha - NO LOCK HELD | |
6773 | * | |
6774 | * Disable Target Mode and reset the adapter | |
6775 | */ | |
55a9066f | 6776 | static void qlt_disable_vha(struct scsi_qla_host *vha) |
2d70c103 NB |
6777 | { |
6778 | struct qla_hw_data *ha = vha->hw; | |
0e8cd71c | 6779 | struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; |
2d70c103 NB |
6780 | unsigned long flags; |
6781 | ||
6782 | if (!tgt) { | |
6783 | ql_dbg(ql_dbg_tgt, vha, 0xe06a, | |
6784 | "Unable to locate qla_tgt pointer from" | |
6785 | " struct qla_hw_data\n"); | |
6786 | dump_stack(); | |
6787 | return; | |
6788 | } | |
6789 | ||
6790 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
6791 | qlt_clear_mode(vha); | |
6792 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
6793 | ||
6794 | set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); | |
6795 | qla2xxx_wake_dpc(vha); | |
6796 | qla2x00_wait_for_hba_online(vha); | |
6797 | } | |
6798 | ||
6799 | /* | |
6800 | * Called from qla_init.c:qla24xx_vport_create() contex to setup | |
6801 | * the target mode specific struct scsi_qla_host and struct qla_hw_data | |
6802 | * members. | |
6803 | */ | |
6804 | void | |
6805 | qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha) | |
6806 | { | |
0e8cd71c SK |
6807 | vha->vha_tgt.qla_tgt = NULL; |
6808 | ||
6809 | mutex_init(&vha->vha_tgt.tgt_mutex); | |
6810 | mutex_init(&vha->vha_tgt.tgt_host_action_mutex); | |
2d70c103 NB |
6811 | |
6812 | qlt_clear_mode(vha); | |
6813 | ||
6814 | /* | |
6815 | * NOTE: Currently the value is kept the same for <24xx and | |
6816 | * >=24xx ISPs. If it is necessary to change it, | |
6817 | * the check should be added for specific ISPs, | |
6818 | * assigning the value appropriately. | |
6819 | */ | |
6820 | ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX; | |
0e8cd71c SK |
6821 | |
6822 | qlt_add_target(ha, vha); | |
2d70c103 NB |
6823 | } |
6824 | ||
e374f9f5 QT |
6825 | u8 |
6826 | qlt_rff_id(struct scsi_qla_host *vha) | |
2d70c103 | 6827 | { |
e374f9f5 | 6828 | u8 fc4_feature = 0; |
2d70c103 NB |
6829 | /* |
6830 | * FC-4 Feature bit 0 indicates target functionality to the name server. | |
6831 | */ | |
6832 | if (qla_tgt_mode_enabled(vha)) { | |
e374f9f5 | 6833 | fc4_feature = BIT_0; |
2d70c103 | 6834 | } else if (qla_ini_mode_enabled(vha)) { |
e374f9f5 | 6835 | fc4_feature = BIT_1; |
726b8548 | 6836 | } else if (qla_dual_mode_enabled(vha)) |
e374f9f5 QT |
6837 | fc4_feature = BIT_0 | BIT_1; |
6838 | ||
6839 | return fc4_feature; | |
2d70c103 NB |
6840 | } |
6841 | ||
6842 | /* | |
6843 | * qlt_init_atio_q_entries() - Initializes ATIO queue entries. | |
6844 | * @ha: HA context | |
6845 | * | |
6846 | * Beginning of ATIO ring has initialization control block already built | |
6847 | * by nvram config routine. | |
6848 | * | |
6849 | * Returns 0 on success. | |
6850 | */ | |
6851 | void | |
6852 | qlt_init_atio_q_entries(struct scsi_qla_host *vha) | |
6853 | { | |
6854 | struct qla_hw_data *ha = vha->hw; | |
6855 | uint16_t cnt; | |
6856 | struct atio_from_isp *pkt = (struct atio_from_isp *)ha->tgt.atio_ring; | |
6857 | ||
ead03855 | 6858 | if (qla_ini_mode_enabled(vha)) |
2d70c103 NB |
6859 | return; |
6860 | ||
6861 | for (cnt = 0; cnt < ha->tgt.atio_q_length; cnt++) { | |
6862 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6863 | pkt++; | |
6864 | } | |
6865 | ||
6866 | } | |
6867 | ||
6868 | /* | |
6869 | * qlt_24xx_process_atio_queue() - Process ATIO queue entries. | |
6870 | * @ha: SCSI driver HA context | |
6871 | */ | |
6872 | void | |
2f424b9b | 6873 | qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked) |
2d70c103 NB |
6874 | { |
6875 | struct qla_hw_data *ha = vha->hw; | |
2d70c103 NB |
6876 | struct atio_from_isp *pkt; |
6877 | int cnt, i; | |
6878 | ||
ec7193e2 | 6879 | if (!ha->flags.fw_started) |
2d70c103 NB |
6880 | return; |
6881 | ||
5f35509d QT |
6882 | while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) || |
6883 | fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) { | |
2d70c103 NB |
6884 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; |
6885 | cnt = pkt->u.raw.entry_count; | |
6886 | ||
5f35509d QT |
6887 | if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) { |
6888 | /* | |
6889 | * This packet is corrupted. The header + payload | |
6890 | * can not be trusted. There is no point in passing | |
6891 | * it further up. | |
6892 | */ | |
83548fe2 | 6893 | ql_log(ql_log_warn, vha, 0xd03c, |
5f35509d QT |
6894 | "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n", |
6895 | pkt->u.isp24.fcp_hdr.s_id, | |
6896 | be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id), | |
6897 | le32_to_cpu(pkt->u.isp24.exchange_addr), pkt); | |
6898 | ||
6899 | adjust_corrupted_atio(pkt); | |
82de802a QT |
6900 | qlt_send_term_exchange(ha->base_qpair, NULL, pkt, |
6901 | ha_locked, 0); | |
5f35509d QT |
6902 | } else { |
6903 | qlt_24xx_atio_pkt_all_vps(vha, | |
6904 | (struct atio_from_isp *)pkt, ha_locked); | |
6905 | } | |
2d70c103 NB |
6906 | |
6907 | for (i = 0; i < cnt; i++) { | |
6908 | ha->tgt.atio_ring_index++; | |
6909 | if (ha->tgt.atio_ring_index == ha->tgt.atio_q_length) { | |
6910 | ha->tgt.atio_ring_index = 0; | |
6911 | ha->tgt.atio_ring_ptr = ha->tgt.atio_ring; | |
6912 | } else | |
6913 | ha->tgt.atio_ring_ptr++; | |
6914 | ||
6915 | pkt->u.raw.signature = ATIO_PROCESSED; | |
6916 | pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr; | |
6917 | } | |
6918 | wmb(); | |
6919 | } | |
6920 | ||
6921 | /* Adjust ring index */ | |
aa230bc5 | 6922 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), ha->tgt.atio_ring_index); |
2d70c103 NB |
6923 | } |
6924 | ||
6925 | void | |
aa230bc5 | 6926 | qlt_24xx_config_rings(struct scsi_qla_host *vha) |
2d70c103 NB |
6927 | { |
6928 | struct qla_hw_data *ha = vha->hw; | |
d2b292c3 QT |
6929 | struct qla_msix_entry *msix = &ha->msix_entries[2]; |
6930 | struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb; | |
6931 | ||
aa230bc5 AE |
6932 | if (!QLA_TGT_MODE_ENABLED()) |
6933 | return; | |
2d70c103 | 6934 | |
aa230bc5 AE |
6935 | WRT_REG_DWORD(ISP_ATIO_Q_IN(vha), 0); |
6936 | WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0); | |
6937 | RD_REG_DWORD(ISP_ATIO_Q_OUT(vha)); | |
6938 | ||
d2b292c3 QT |
6939 | if (ha->flags.msix_enabled) { |
6940 | if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { | |
6941 | if (IS_QLA2071(ha)) { | |
6942 | /* 4 ports Baker: Enable Interrupt Handshake */ | |
6943 | icb->msix_atio = 0; | |
6944 | icb->firmware_options_2 |= BIT_26; | |
6945 | } else { | |
6946 | icb->msix_atio = cpu_to_le16(msix->entry); | |
6947 | icb->firmware_options_2 &= ~BIT_26; | |
6948 | } | |
6949 | ql_dbg(ql_dbg_init, vha, 0xf072, | |
6950 | "Registering ICB vector 0x%x for atio que.\n", | |
6951 | msix->entry); | |
6952 | } | |
6953 | } else { | |
6954 | /* INTx|MSI */ | |
6955 | if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { | |
6956 | icb->msix_atio = 0; | |
6957 | icb->firmware_options_2 |= BIT_26; | |
6958 | ql_dbg(ql_dbg_init, vha, 0xf072, | |
6959 | "%s: Use INTx for ATIOQ.\n", __func__); | |
6960 | } | |
2d70c103 NB |
6961 | } |
6962 | } | |
6963 | ||
6964 | void | |
6965 | qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) | |
6966 | { | |
6967 | struct qla_hw_data *ha = vha->hw; | |
9cd883f0 | 6968 | u32 tmp; |
99e1b683 QT |
6969 | |
6970 | if (!QLA_TGT_MODE_ENABLED()) | |
6971 | return; | |
2d70c103 | 6972 | |
ead03855 | 6973 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
2d70c103 NB |
6974 | if (!ha->tgt.saved_set) { |
6975 | /* We save only once */ | |
6976 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
6977 | ha->tgt.saved_firmware_options_1 = | |
6978 | nv->firmware_options_1; | |
6979 | ha->tgt.saved_firmware_options_2 = | |
6980 | nv->firmware_options_2; | |
6981 | ha->tgt.saved_firmware_options_3 = | |
6982 | nv->firmware_options_3; | |
6983 | ha->tgt.saved_set = 1; | |
6984 | } | |
6985 | ||
99e1b683 | 6986 | if (qla_tgt_mode_enabled(vha)) |
ead03855 | 6987 | nv->exchange_count = cpu_to_le16(0xFFFF); |
99e1b683 | 6988 | else /* dual */ |
0645cb83 | 6989 | nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld); |
2d70c103 NB |
6990 | |
6991 | /* Enable target mode */ | |
ad950360 | 6992 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
2d70c103 NB |
6993 | |
6994 | /* Disable ini mode, if requested */ | |
726b8548 | 6995 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 6996 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
2d70c103 NB |
6997 | |
6998 | /* Disable Full Login after LIP */ | |
ad950360 | 6999 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
2d70c103 | 7000 | /* Enable initial LIP */ |
ad950360 | 7001 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
d154f350 AE |
7002 | if (ql2xtgt_tape_enable) |
7003 | /* Enable FC Tape support */ | |
7004 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
7005 | else | |
7006 | /* Disable FC Tape support */ | |
7007 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
7008 | ||
2d70c103 | 7009 | /* Disable Full Login after LIP */ |
ad950360 | 7010 | nv->host_p &= cpu_to_le32(~BIT_10); |
c0f64627 HM |
7011 | |
7012 | /* | |
7013 | * clear BIT 15 explicitly as we have seen at least | |
7014 | * a couple of instances where this was set and this | |
7015 | * was causing the firmware to not be initialized. | |
7016 | */ | |
7017 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
2d70c103 | 7018 | /* Enable target PRLI control */ |
ad950360 | 7019 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
9cd883f0 QT |
7020 | |
7021 | if (IS_QLA25XX(ha)) { | |
7022 | /* Change Loop-prefer to Pt-Pt */ | |
7023 | tmp = ~(BIT_4|BIT_5|BIT_6); | |
7024 | nv->firmware_options_2 &= cpu_to_le32(tmp); | |
7025 | tmp = P2P << 4; | |
7026 | nv->firmware_options_2 |= cpu_to_le32(tmp); | |
7027 | } | |
2d70c103 NB |
7028 | } else { |
7029 | if (ha->tgt.saved_set) { | |
7030 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
7031 | nv->firmware_options_1 = | |
7032 | ha->tgt.saved_firmware_options_1; | |
7033 | nv->firmware_options_2 = | |
7034 | ha->tgt.saved_firmware_options_2; | |
7035 | nv->firmware_options_3 = | |
7036 | ha->tgt.saved_firmware_options_3; | |
7037 | } | |
7038 | return; | |
7039 | } | |
7040 | ||
7c3f8fd1 | 7041 | if (ha->base_qpair->enable_class_2) { |
2d70c103 NB |
7042 | if (vha->flags.init_done) |
7043 | fc_host_supported_classes(vha->host) = | |
7044 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
7045 | ||
ad950360 | 7046 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
2d70c103 NB |
7047 | } else { |
7048 | if (vha->flags.init_done) | |
7049 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
7050 | ||
ad950360 | 7051 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
2d70c103 NB |
7052 | } |
7053 | } | |
7054 | ||
7055 | void | |
7056 | qlt_24xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
7057 | struct init_cb_24xx *icb) | |
7058 | { | |
7059 | struct qla_hw_data *ha = vha->hw; | |
7060 | ||
481ce733 QT |
7061 | if (!QLA_TGT_MODE_ENABLED()) |
7062 | return; | |
7063 | ||
2d70c103 NB |
7064 | if (ha->tgt.node_name_set) { |
7065 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 7066 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
2d70c103 NB |
7067 | } |
7068 | } | |
7069 | ||
aa230bc5 AE |
7070 | void |
7071 | qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) | |
7072 | { | |
7073 | struct qla_hw_data *ha = vha->hw; | |
9cd883f0 | 7074 | u32 tmp; |
aa230bc5 AE |
7075 | |
7076 | if (!QLA_TGT_MODE_ENABLED()) | |
7077 | return; | |
7078 | ||
ead03855 | 7079 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) { |
aa230bc5 AE |
7080 | if (!ha->tgt.saved_set) { |
7081 | /* We save only once */ | |
7082 | ha->tgt.saved_exchange_count = nv->exchange_count; | |
7083 | ha->tgt.saved_firmware_options_1 = | |
7084 | nv->firmware_options_1; | |
7085 | ha->tgt.saved_firmware_options_2 = | |
7086 | nv->firmware_options_2; | |
7087 | ha->tgt.saved_firmware_options_3 = | |
7088 | nv->firmware_options_3; | |
7089 | ha->tgt.saved_set = 1; | |
7090 | } | |
7091 | ||
99e1b683 | 7092 | if (qla_tgt_mode_enabled(vha)) |
ead03855 | 7093 | nv->exchange_count = cpu_to_le16(0xFFFF); |
99e1b683 | 7094 | else /* dual */ |
0645cb83 | 7095 | nv->exchange_count = cpu_to_le16(vha->ql2xexchoffld); |
aa230bc5 AE |
7096 | |
7097 | /* Enable target mode */ | |
ad950360 | 7098 | nv->firmware_options_1 |= cpu_to_le32(BIT_4); |
aa230bc5 AE |
7099 | |
7100 | /* Disable ini mode, if requested */ | |
726b8548 | 7101 | if (qla_tgt_mode_enabled(vha)) |
ad950360 | 7102 | nv->firmware_options_1 |= cpu_to_le32(BIT_5); |
aa230bc5 | 7103 | /* Disable Full Login after LIP */ |
ad950360 | 7104 | nv->firmware_options_1 &= cpu_to_le32(~BIT_13); |
aa230bc5 | 7105 | /* Enable initial LIP */ |
ad950360 | 7106 | nv->firmware_options_1 &= cpu_to_le32(~BIT_9); |
c0f64627 HM |
7107 | /* |
7108 | * clear BIT 15 explicitly as we have seen at | |
7109 | * least a couple of instances where this was set | |
7110 | * and this was causing the firmware to not be | |
7111 | * initialized. | |
7112 | */ | |
7113 | nv->firmware_options_1 &= cpu_to_le32(~BIT_15); | |
d154f350 AE |
7114 | if (ql2xtgt_tape_enable) |
7115 | /* Enable FC tape support */ | |
7116 | nv->firmware_options_2 |= cpu_to_le32(BIT_12); | |
7117 | else | |
7118 | /* Disable FC tape support */ | |
7119 | nv->firmware_options_2 &= cpu_to_le32(~BIT_12); | |
7120 | ||
aa230bc5 | 7121 | /* Disable Full Login after LIP */ |
ad950360 | 7122 | nv->host_p &= cpu_to_le32(~BIT_10); |
aa230bc5 | 7123 | /* Enable target PRLI control */ |
ad950360 | 7124 | nv->firmware_options_2 |= cpu_to_le32(BIT_14); |
9cd883f0 QT |
7125 | |
7126 | /* Change Loop-prefer to Pt-Pt */ | |
7127 | tmp = ~(BIT_4|BIT_5|BIT_6); | |
7128 | nv->firmware_options_2 &= cpu_to_le32(tmp); | |
7129 | tmp = P2P << 4; | |
7130 | nv->firmware_options_2 |= cpu_to_le32(tmp); | |
aa230bc5 AE |
7131 | } else { |
7132 | if (ha->tgt.saved_set) { | |
7133 | nv->exchange_count = ha->tgt.saved_exchange_count; | |
7134 | nv->firmware_options_1 = | |
7135 | ha->tgt.saved_firmware_options_1; | |
7136 | nv->firmware_options_2 = | |
7137 | ha->tgt.saved_firmware_options_2; | |
7138 | nv->firmware_options_3 = | |
7139 | ha->tgt.saved_firmware_options_3; | |
7140 | } | |
7141 | return; | |
7142 | } | |
7143 | ||
7c3f8fd1 | 7144 | if (ha->base_qpair->enable_class_2) { |
aa230bc5 AE |
7145 | if (vha->flags.init_done) |
7146 | fc_host_supported_classes(vha->host) = | |
7147 | FC_COS_CLASS2 | FC_COS_CLASS3; | |
7148 | ||
ad950360 | 7149 | nv->firmware_options_2 |= cpu_to_le32(BIT_8); |
aa230bc5 AE |
7150 | } else { |
7151 | if (vha->flags.init_done) | |
7152 | fc_host_supported_classes(vha->host) = FC_COS_CLASS3; | |
7153 | ||
ad950360 | 7154 | nv->firmware_options_2 &= ~cpu_to_le32(BIT_8); |
aa230bc5 AE |
7155 | } |
7156 | } | |
7157 | ||
7158 | void | |
7159 | qlt_81xx_config_nvram_stage2(struct scsi_qla_host *vha, | |
7160 | struct init_cb_81xx *icb) | |
7161 | { | |
7162 | struct qla_hw_data *ha = vha->hw; | |
7163 | ||
7164 | if (!QLA_TGT_MODE_ENABLED()) | |
7165 | return; | |
7166 | ||
7167 | if (ha->tgt.node_name_set) { | |
7168 | memcpy(icb->node_name, ha->tgt.tgt_node_name, WWN_SIZE); | |
ad950360 | 7169 | icb->firmware_options_1 |= cpu_to_le32(BIT_14); |
aa230bc5 AE |
7170 | } |
7171 | } | |
7172 | ||
7173 | void | |
7174 | qlt_83xx_iospace_config(struct qla_hw_data *ha) | |
7175 | { | |
7176 | if (!QLA_TGT_MODE_ENABLED()) | |
7177 | return; | |
7178 | ||
7179 | ha->msix_count += 1; /* For ATIO Q */ | |
7180 | } | |
7181 | ||
2d70c103 NB |
7182 | |
7183 | void | |
7184 | qlt_modify_vp_config(struct scsi_qla_host *vha, | |
7185 | struct vp_config_entry_24xx *vpmod) | |
7186 | { | |
ead03855 QT |
7187 | /* enable target mode. Bit5 = 1 => disable */ |
7188 | if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) | |
2d70c103 | 7189 | vpmod->options_idx1 &= ~BIT_5; |
726b8548 | 7190 | |
ead03855 | 7191 | /* Disable ini mode, if requested. bit4 = 1 => disable */ |
726b8548 | 7192 | if (qla_tgt_mode_enabled(vha)) |
2d70c103 NB |
7193 | vpmod->options_idx1 &= ~BIT_4; |
7194 | } | |
7195 | ||
7196 | void | |
7197 | qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) | |
7198 | { | |
482c9dc7 QT |
7199 | int rc; |
7200 | ||
2d70c103 NB |
7201 | if (!QLA_TGT_MODE_ENABLED()) |
7202 | return; | |
7203 | ||
c9558869 | 7204 | if ((ql2xenablemsix == 0) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { |
aa230bc5 AE |
7205 | ISP_ATIO_Q_IN(base_vha) = &ha->mqiobase->isp25mq.atio_q_in; |
7206 | ISP_ATIO_Q_OUT(base_vha) = &ha->mqiobase->isp25mq.atio_q_out; | |
7207 | } else { | |
7208 | ISP_ATIO_Q_IN(base_vha) = &ha->iobase->isp24.atio_q_in; | |
7209 | ISP_ATIO_Q_OUT(base_vha) = &ha->iobase->isp24.atio_q_out; | |
7210 | } | |
7211 | ||
0e8cd71c SK |
7212 | mutex_init(&base_vha->vha_tgt.tgt_mutex); |
7213 | mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex); | |
41dc529a QT |
7214 | |
7215 | INIT_LIST_HEAD(&base_vha->unknown_atio_list); | |
7216 | INIT_DELAYED_WORK(&base_vha->unknown_atio_work, | |
7217 | qlt_unknown_atio_work_fn); | |
7218 | ||
2d70c103 | 7219 | qlt_clear_mode(base_vha); |
482c9dc7 QT |
7220 | |
7221 | rc = btree_init32(&ha->tgt.host_map); | |
7222 | if (rc) | |
83548fe2 | 7223 | ql_log(ql_log_info, base_vha, 0xd03d, |
482c9dc7 QT |
7224 | "Unable to initialize ha->host_map btree\n"); |
7225 | ||
7226 | qlt_update_vp_map(base_vha, SET_VP_IDX); | |
2d70c103 NB |
7227 | } |
7228 | ||
aa230bc5 AE |
7229 | irqreturn_t |
7230 | qla83xx_msix_atio_q(int irq, void *dev_id) | |
7231 | { | |
7232 | struct rsp_que *rsp; | |
7233 | scsi_qla_host_t *vha; | |
7234 | struct qla_hw_data *ha; | |
7235 | unsigned long flags; | |
7236 | ||
7237 | rsp = (struct rsp_que *) dev_id; | |
7238 | ha = rsp->hw; | |
7239 | vha = pci_get_drvdata(ha->pdev); | |
7240 | ||
2f424b9b | 7241 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); |
aa230bc5 | 7242 | |
2f424b9b | 7243 | qlt_24xx_process_atio_queue(vha, 0); |
aa230bc5 | 7244 | |
2f424b9b | 7245 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); |
aa230bc5 AE |
7246 | |
7247 | return IRQ_HANDLED; | |
7248 | } | |
7249 | ||
2f424b9b QT |
7250 | static void |
7251 | qlt_handle_abts_recv_work(struct work_struct *work) | |
7252 | { | |
7253 | struct qla_tgt_sess_op *op = container_of(work, | |
7254 | struct qla_tgt_sess_op, work); | |
7255 | scsi_qla_host_t *vha = op->vha; | |
7256 | struct qla_hw_data *ha = vha->hw; | |
7257 | unsigned long flags; | |
7258 | ||
7c3f8fd1 QT |
7259 | if (qla2x00_reset_active(vha) || |
7260 | (op->chip_reset != ha->base_qpair->chip_reset)) | |
2f424b9b QT |
7261 | return; |
7262 | ||
7263 | spin_lock_irqsave(&ha->tgt.atio_lock, flags); | |
7264 | qlt_24xx_process_atio_queue(vha, 0); | |
7265 | spin_unlock_irqrestore(&ha->tgt.atio_lock, flags); | |
7266 | ||
7267 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
82de802a | 7268 | qlt_response_pkt_all_vps(vha, op->rsp, (response_t *)&op->atio); |
2f424b9b | 7269 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
ae940f2c QT |
7270 | |
7271 | kfree(op); | |
2f424b9b QT |
7272 | } |
7273 | ||
7274 | void | |
82de802a QT |
7275 | qlt_handle_abts_recv(struct scsi_qla_host *vha, struct rsp_que *rsp, |
7276 | response_t *pkt) | |
2f424b9b QT |
7277 | { |
7278 | struct qla_tgt_sess_op *op; | |
7279 | ||
7280 | op = kzalloc(sizeof(*op), GFP_ATOMIC); | |
7281 | ||
7282 | if (!op) { | |
7283 | /* do not reach for ATIO queue here. This is best effort err | |
7284 | * recovery at this point. | |
7285 | */ | |
82de802a | 7286 | qlt_response_pkt_all_vps(vha, rsp, pkt); |
2f424b9b QT |
7287 | return; |
7288 | } | |
7289 | ||
7290 | memcpy(&op->atio, pkt, sizeof(*pkt)); | |
7291 | op->vha = vha; | |
7c3f8fd1 | 7292 | op->chip_reset = vha->hw->base_qpair->chip_reset; |
82de802a | 7293 | op->rsp = rsp; |
2f424b9b QT |
7294 | INIT_WORK(&op->work, qlt_handle_abts_recv_work); |
7295 | queue_work(qla_tgt_wq, &op->work); | |
7296 | return; | |
7297 | } | |
7298 | ||
2d70c103 NB |
7299 | int |
7300 | qlt_mem_alloc(struct qla_hw_data *ha) | |
7301 | { | |
7302 | if (!QLA_TGT_MODE_ENABLED()) | |
7303 | return 0; | |
7304 | ||
6396bb22 KC |
7305 | ha->tgt.tgt_vp_map = kcalloc(MAX_MULTI_ID_FABRIC, |
7306 | sizeof(struct qla_tgt_vp_map), | |
7307 | GFP_KERNEL); | |
2d70c103 NB |
7308 | if (!ha->tgt.tgt_vp_map) |
7309 | return -ENOMEM; | |
7310 | ||
7311 | ha->tgt.atio_ring = dma_alloc_coherent(&ha->pdev->dev, | |
7312 | (ha->tgt.atio_q_length + 1) * sizeof(struct atio_from_isp), | |
7313 | &ha->tgt.atio_dma, GFP_KERNEL); | |
7314 | if (!ha->tgt.atio_ring) { | |
7315 | kfree(ha->tgt.tgt_vp_map); | |
7316 | return -ENOMEM; | |
7317 | } | |
7318 | return 0; | |
7319 | } | |
7320 | ||
7321 | void | |
7322 | qlt_mem_free(struct qla_hw_data *ha) | |
7323 | { | |
7324 | if (!QLA_TGT_MODE_ENABLED()) | |
7325 | return; | |
7326 | ||
7327 | if (ha->tgt.atio_ring) { | |
7328 | dma_free_coherent(&ha->pdev->dev, (ha->tgt.atio_q_length + 1) * | |
7329 | sizeof(struct atio_from_isp), ha->tgt.atio_ring, | |
7330 | ha->tgt.atio_dma); | |
7331 | } | |
7332 | kfree(ha->tgt.tgt_vp_map); | |
7333 | } | |
7334 | ||
7335 | /* vport_slock to be held by the caller */ | |
7336 | void | |
7337 | qlt_update_vp_map(struct scsi_qla_host *vha, int cmd) | |
7338 | { | |
482c9dc7 QT |
7339 | void *slot; |
7340 | u32 key; | |
7341 | int rc; | |
7342 | ||
2d70c103 NB |
7343 | if (!QLA_TGT_MODE_ENABLED()) |
7344 | return; | |
7345 | ||
482c9dc7 QT |
7346 | key = vha->d_id.b24; |
7347 | ||
2d70c103 NB |
7348 | switch (cmd) { |
7349 | case SET_VP_IDX: | |
7350 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha; | |
7351 | break; | |
7352 | case SET_AL_PA: | |
482c9dc7 QT |
7353 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); |
7354 | if (!slot) { | |
83548fe2 | 7355 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf018, |
482c9dc7 QT |
7356 | "Save vha in host_map %p %06x\n", vha, key); |
7357 | rc = btree_insert32(&vha->hw->tgt.host_map, | |
7358 | key, vha, GFP_ATOMIC); | |
7359 | if (rc) | |
83548fe2 | 7360 | ql_log(ql_log_info, vha, 0xd03e, |
482c9dc7 QT |
7361 | "Unable to insert s_id into host_map: %06x\n", |
7362 | key); | |
7363 | return; | |
7364 | } | |
83548fe2 QT |
7365 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf019, |
7366 | "replace existing vha in host_map %p %06x\n", vha, key); | |
482c9dc7 | 7367 | btree_update32(&vha->hw->tgt.host_map, key, vha); |
2d70c103 NB |
7368 | break; |
7369 | case RESET_VP_IDX: | |
7370 | vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL; | |
7371 | break; | |
7372 | case RESET_AL_PA: | |
83548fe2 | 7373 | ql_dbg(ql_dbg_tgt_mgt, vha, 0xf01a, |
482c9dc7 QT |
7374 | "clear vha in host_map %p %06x\n", vha, key); |
7375 | slot = btree_lookup32(&vha->hw->tgt.host_map, key); | |
7376 | if (slot) | |
7377 | btree_remove32(&vha->hw->tgt.host_map, key); | |
7378 | vha->d_id.b24 = 0; | |
2d70c103 NB |
7379 | break; |
7380 | } | |
7381 | } | |
7382 | ||
482c9dc7 QT |
7383 | void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id) |
7384 | { | |
482c9dc7 QT |
7385 | |
7386 | if (!vha->d_id.b24) { | |
482c9dc7 QT |
7387 | vha->d_id = id; |
7388 | qlt_update_vp_map(vha, SET_AL_PA); | |
482c9dc7 | 7389 | } else if (vha->d_id.b24 != id.b24) { |
482c9dc7 QT |
7390 | qlt_update_vp_map(vha, RESET_AL_PA); |
7391 | vha->d_id = id; | |
7392 | qlt_update_vp_map(vha, SET_AL_PA); | |
482c9dc7 QT |
7393 | } |
7394 | } | |
7395 | ||
2d70c103 NB |
7396 | static int __init qlt_parse_ini_mode(void) |
7397 | { | |
7398 | if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0) | |
7399 | ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE; | |
7400 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DISABLED) == 0) | |
7401 | ql2x_ini_mode = QLA2XXX_INI_MODE_DISABLED; | |
7402 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_ENABLED) == 0) | |
7403 | ql2x_ini_mode = QLA2XXX_INI_MODE_ENABLED; | |
ead03855 QT |
7404 | else if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_DUAL) == 0) |
7405 | ql2x_ini_mode = QLA2XXX_INI_MODE_DUAL; | |
2d70c103 NB |
7406 | else |
7407 | return false; | |
7408 | ||
7409 | return true; | |
7410 | } | |
7411 | ||
7412 | int __init qlt_init(void) | |
7413 | { | |
7414 | int ret; | |
7415 | ||
7416 | if (!qlt_parse_ini_mode()) { | |
7417 | ql_log(ql_log_fatal, NULL, 0xe06b, | |
7418 | "qlt_parse_ini_mode() failed\n"); | |
7419 | return -EINVAL; | |
7420 | } | |
7421 | ||
7422 | if (!QLA_TGT_MODE_ENABLED()) | |
7423 | return 0; | |
7424 | ||
2d70c103 NB |
7425 | qla_tgt_mgmt_cmd_cachep = kmem_cache_create("qla_tgt_mgmt_cmd_cachep", |
7426 | sizeof(struct qla_tgt_mgmt_cmd), __alignof__(struct | |
7427 | qla_tgt_mgmt_cmd), 0, NULL); | |
7428 | if (!qla_tgt_mgmt_cmd_cachep) { | |
83548fe2 | 7429 | ql_log(ql_log_fatal, NULL, 0xd04b, |
2d70c103 | 7430 | "kmem_cache_create for qla_tgt_mgmt_cmd_cachep failed\n"); |
51a07f84 | 7431 | return -ENOMEM; |
2d70c103 NB |
7432 | } |
7433 | ||
b7bd104e | 7434 | qla_tgt_plogi_cachep = kmem_cache_create("qla_tgt_plogi_cachep", |
5d964837 QT |
7435 | sizeof(struct qlt_plogi_ack_t), __alignof__(struct qlt_plogi_ack_t), |
7436 | 0, NULL); | |
b7bd104e AP |
7437 | |
7438 | if (!qla_tgt_plogi_cachep) { | |
7439 | ql_log(ql_log_fatal, NULL, 0xe06d, | |
7440 | "kmem_cache_create for qla_tgt_plogi_cachep failed\n"); | |
7441 | ret = -ENOMEM; | |
7442 | goto out_mgmt_cmd_cachep; | |
7443 | } | |
7444 | ||
2d70c103 NB |
7445 | qla_tgt_mgmt_cmd_mempool = mempool_create(25, mempool_alloc_slab, |
7446 | mempool_free_slab, qla_tgt_mgmt_cmd_cachep); | |
7447 | if (!qla_tgt_mgmt_cmd_mempool) { | |
7448 | ql_log(ql_log_fatal, NULL, 0xe06e, | |
7449 | "mempool_create for qla_tgt_mgmt_cmd_mempool failed\n"); | |
7450 | ret = -ENOMEM; | |
b7bd104e | 7451 | goto out_plogi_cachep; |
2d70c103 NB |
7452 | } |
7453 | ||
7454 | qla_tgt_wq = alloc_workqueue("qla_tgt_wq", 0, 0); | |
7455 | if (!qla_tgt_wq) { | |
7456 | ql_log(ql_log_fatal, NULL, 0xe06f, | |
7457 | "alloc_workqueue for qla_tgt_wq failed\n"); | |
7458 | ret = -ENOMEM; | |
7459 | goto out_cmd_mempool; | |
7460 | } | |
7461 | /* | |
7462 | * Return 1 to signal that initiator-mode is being disabled | |
7463 | */ | |
7464 | return (ql2x_ini_mode == QLA2XXX_INI_MODE_DISABLED) ? 1 : 0; | |
7465 | ||
7466 | out_cmd_mempool: | |
7467 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e AP |
7468 | out_plogi_cachep: |
7469 | kmem_cache_destroy(qla_tgt_plogi_cachep); | |
2d70c103 NB |
7470 | out_mgmt_cmd_cachep: |
7471 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); | |
2d70c103 NB |
7472 | return ret; |
7473 | } | |
7474 | ||
7475 | void qlt_exit(void) | |
7476 | { | |
7477 | if (!QLA_TGT_MODE_ENABLED()) | |
7478 | return; | |
7479 | ||
7480 | destroy_workqueue(qla_tgt_wq); | |
7481 | mempool_destroy(qla_tgt_mgmt_cmd_mempool); | |
b7bd104e | 7482 | kmem_cache_destroy(qla_tgt_plogi_cachep); |
2d70c103 | 7483 | kmem_cache_destroy(qla_tgt_mgmt_cmd_cachep); |
2d70c103 | 7484 | } |