xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_isr.c (revision 59f10a05)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * QLogic Fibre Channel HBA Driver
4  * Copyright (c)  2003-2014 QLogic Corporation
5  */
6 #include "qla_def.h"
7 #include "qla_target.h"
8 #include "qla_gbl.h"
9 
10 #include <linux/delay.h>
11 #include <linux/slab.h>
12 #include <linux/cpu.h>
13 #include <linux/t10-pi.h>
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsi_bsg_fc.h>
16 #include <scsi/scsi_eh.h>
17 #include <scsi/fc/fc_fs.h>
18 #include <linux/nvme-fc-driver.h>
19 
20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
24 	sts_entry_t *);
25 static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
26 	struct purex_item *item);
27 static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
28 	uint16_t size);
29 static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
30 	void *pkt);
31 static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
32 	void **pkt, struct rsp_que **rsp);
33 
34 static void
qla27xx_process_purex_fpin(struct scsi_qla_host * vha,struct purex_item * item)35 qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
36 {
37 	void *pkt = &item->iocb;
38 	uint16_t pkt_size = item->size;
39 
40 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
41 	       "%s: Enter\n", __func__);
42 
43 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
44 	       "-------- ELS REQ -------\n");
45 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
46 		       pkt, pkt_size);
47 
48 	fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt, 0);
49 }
50 
51 const char *const port_state_str[] = {
52 	[FCS_UNKNOWN]		= "Unknown",
53 	[FCS_UNCONFIGURED]	= "UNCONFIGURED",
54 	[FCS_DEVICE_DEAD]	= "DEAD",
55 	[FCS_DEVICE_LOST]	= "LOST",
56 	[FCS_ONLINE]		= "ONLINE"
57 };
58 
59 #define SFP_DISABLE_LASER_INITIATED    0x15  /* Sub code of 8070 AEN */
60 #define SFP_ENABLE_LASER_INITIATED     0x16  /* Sub code of 8070 AEN */
61 
display_Laser_info(scsi_qla_host_t * vha,u16 mb1,u16 mb2,u16 mb3)62 static inline void display_Laser_info(scsi_qla_host_t *vha,
63 				      u16 mb1, u16 mb2, u16 mb3) {
64 
65 	if (mb1 == SFP_DISABLE_LASER_INITIATED)
66 		ql_log(ql_log_warn, vha, 0xf0a2,
67 		       "SFP temperature (%d C) reached/exceeded the threshold (%d C). Laser is disabled.\n",
68 		       mb3, mb2);
69 	if (mb1 == SFP_ENABLE_LASER_INITIATED)
70 		ql_log(ql_log_warn, vha, 0xf0a3,
71 		       "SFP temperature (%d C) reached normal operating level. Laser is enabled.\n",
72 		       mb3);
73 }
74 
75 static void
qla24xx_process_abts(struct scsi_qla_host * vha,struct purex_item * pkt)76 qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
77 {
78 	struct abts_entry_24xx *abts =
79 	    (struct abts_entry_24xx *)&pkt->iocb;
80 	struct qla_hw_data *ha = vha->hw;
81 	struct els_entry_24xx *rsp_els;
82 	struct abts_entry_24xx *abts_rsp;
83 	dma_addr_t dma;
84 	uint32_t fctl;
85 	int rval;
86 
87 	ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
88 
89 	ql_log(ql_log_warn, vha, 0x0287,
90 	    "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
91 	    abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
92 	    abts->seq_id, abts->seq_cnt);
93 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
94 	    "-------- ABTS RCV -------\n");
95 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
96 	    (uint8_t *)abts, sizeof(*abts));
97 
98 	rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
99 	    GFP_KERNEL);
100 	if (!rsp_els) {
101 		ql_log(ql_log_warn, vha, 0x0287,
102 		    "Failed allocate dma buffer ABTS/ELS RSP.\n");
103 		return;
104 	}
105 
106 	/* terminate exchange */
107 	rsp_els->entry_type = ELS_IOCB_TYPE;
108 	rsp_els->entry_count = 1;
109 	rsp_els->nport_handle = cpu_to_le16(~0);
110 	rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
111 	rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
112 	ql_dbg(ql_dbg_init, vha, 0x0283,
113 	    "Sending ELS Response to terminate exchange %#x...\n",
114 	    abts->rx_xch_addr_to_abort);
115 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
116 	    "-------- ELS RSP -------\n");
117 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
118 	    (uint8_t *)rsp_els, sizeof(*rsp_els));
119 	rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
120 	if (rval) {
121 		ql_log(ql_log_warn, vha, 0x0288,
122 		    "%s: iocb failed to execute -> %x\n", __func__, rval);
123 	} else if (rsp_els->comp_status) {
124 		ql_log(ql_log_warn, vha, 0x0289,
125 		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
126 		    __func__, rsp_els->comp_status,
127 		    rsp_els->error_subcode_1, rsp_els->error_subcode_2);
128 	} else {
129 		ql_dbg(ql_dbg_init, vha, 0x028a,
130 		    "%s: abort exchange done.\n", __func__);
131 	}
132 
133 	/* send ABTS response */
134 	abts_rsp = (void *)rsp_els;
135 	memset(abts_rsp, 0, sizeof(*abts_rsp));
136 	abts_rsp->entry_type = ABTS_RSP_TYPE;
137 	abts_rsp->entry_count = 1;
138 	abts_rsp->nport_handle = abts->nport_handle;
139 	abts_rsp->vp_idx = abts->vp_idx;
140 	abts_rsp->sof_type = abts->sof_type & 0xf0;
141 	abts_rsp->rx_xch_addr = abts->rx_xch_addr;
142 	abts_rsp->d_id[0] = abts->s_id[0];
143 	abts_rsp->d_id[1] = abts->s_id[1];
144 	abts_rsp->d_id[2] = abts->s_id[2];
145 	abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
146 	abts_rsp->s_id[0] = abts->d_id[0];
147 	abts_rsp->s_id[1] = abts->d_id[1];
148 	abts_rsp->s_id[2] = abts->d_id[2];
149 	abts_rsp->cs_ctl = abts->cs_ctl;
150 	/* include flipping bit23 in fctl */
151 	fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
152 	    FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
153 	abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
154 	abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
155 	abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
156 	abts_rsp->type = FC_TYPE_BLD;
157 	abts_rsp->rx_id = abts->rx_id;
158 	abts_rsp->ox_id = abts->ox_id;
159 	abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
160 	abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
161 	abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
162 	abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
163 	ql_dbg(ql_dbg_init, vha, 0x028b,
164 	    "Sending BA ACC response to ABTS %#x...\n",
165 	    abts->rx_xch_addr_to_abort);
166 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
167 	    "-------- ELS RSP -------\n");
168 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
169 	    (uint8_t *)abts_rsp, sizeof(*abts_rsp));
170 	rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
171 	if (rval) {
172 		ql_log(ql_log_warn, vha, 0x028c,
173 		    "%s: iocb failed to execute -> %x\n", __func__, rval);
174 	} else if (abts_rsp->comp_status) {
175 		ql_log(ql_log_warn, vha, 0x028d,
176 		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
177 		    __func__, abts_rsp->comp_status,
178 		    abts_rsp->payload.error.subcode1,
179 		    abts_rsp->payload.error.subcode2);
180 	} else {
181 		ql_dbg(ql_dbg_init, vha, 0x028ea,
182 		    "%s: done.\n", __func__);
183 	}
184 
185 	dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
186 }
187 
188 /**
189  * __qla_consume_iocb - this routine is used to tell fw driver has processed
190  *   or consumed the head IOCB along with the continuation IOCB's from the
191  *   provided respond queue.
192  * @vha: host adapter pointer
193  * @pkt: pointer to current packet.  On return, this pointer shall move
194  *       to the next packet.
195  * @rsp: respond queue pointer.
196  *
197  * it is assumed pkt is the head iocb, not the continuation iocbk
198  */
__qla_consume_iocb(struct scsi_qla_host * vha,void ** pkt,struct rsp_que ** rsp)199 void __qla_consume_iocb(struct scsi_qla_host *vha,
200 	void **pkt, struct rsp_que **rsp)
201 {
202 	struct rsp_que *rsp_q = *rsp;
203 	response_t *new_pkt;
204 	uint16_t entry_count_remaining;
205 	struct purex_entry_24xx *purex = *pkt;
206 
207 	entry_count_remaining = purex->entry_count;
208 	while (entry_count_remaining > 0) {
209 		new_pkt = rsp_q->ring_ptr;
210 		*pkt = new_pkt;
211 
212 		rsp_q->ring_index++;
213 		if (rsp_q->ring_index == rsp_q->length) {
214 			rsp_q->ring_index = 0;
215 			rsp_q->ring_ptr = rsp_q->ring;
216 		} else {
217 			rsp_q->ring_ptr++;
218 		}
219 
220 		new_pkt->signature = RESPONSE_PROCESSED;
221 		/* flush signature */
222 		wmb();
223 		--entry_count_remaining;
224 	}
225 }
226 
227 /**
228  * __qla_copy_purex_to_buffer - extract ELS payload from Purex IOCB
229  *    and save to provided buffer
230  * @vha: host adapter pointer
231  * @pkt: pointer Purex IOCB
232  * @rsp: respond queue
233  * @buf: extracted ELS payload copy here
234  * @buf_len: buffer length
235  */
__qla_copy_purex_to_buffer(struct scsi_qla_host * vha,void ** pkt,struct rsp_que ** rsp,u8 * buf,u32 buf_len)236 int __qla_copy_purex_to_buffer(struct scsi_qla_host *vha,
237 	void **pkt, struct rsp_que **rsp, u8 *buf, u32 buf_len)
238 {
239 	struct purex_entry_24xx *purex = *pkt;
240 	struct rsp_que *rsp_q = *rsp;
241 	sts_cont_entry_t *new_pkt;
242 	uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
243 	uint16_t buffer_copy_offset = 0;
244 	uint16_t entry_count_remaining;
245 	u16 tpad;
246 
247 	entry_count_remaining = purex->entry_count;
248 	total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
249 		- PURX_ELS_HEADER_SIZE;
250 
251 	/*
252 	 * end of payload may not end in 4bytes boundary.  Need to
253 	 * round up / pad for room to swap, before saving data
254 	 */
255 	tpad = roundup(total_bytes, 4);
256 
257 	if (buf_len < tpad) {
258 		ql_dbg(ql_dbg_async, vha, 0x5084,
259 		    "%s buffer is too small %d < %d\n",
260 		    __func__, buf_len, tpad);
261 		__qla_consume_iocb(vha, pkt, rsp);
262 		return -EIO;
263 	}
264 
265 	pending_bytes = total_bytes = tpad;
266 	no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
267 	    sizeof(purex->els_frame_payload) : pending_bytes;
268 
269 	memcpy(buf, &purex->els_frame_payload[0], no_bytes);
270 	buffer_copy_offset += no_bytes;
271 	pending_bytes -= no_bytes;
272 	--entry_count_remaining;
273 
274 	((response_t *)purex)->signature = RESPONSE_PROCESSED;
275 	/* flush signature */
276 	wmb();
277 
278 	do {
279 		while ((total_bytes > 0) && (entry_count_remaining > 0)) {
280 			new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
281 			*pkt = new_pkt;
282 
283 			if (new_pkt->entry_type != STATUS_CONT_TYPE) {
284 				ql_log(ql_log_warn, vha, 0x507a,
285 				    "Unexpected IOCB type, partial data 0x%x\n",
286 				    buffer_copy_offset);
287 				break;
288 			}
289 
290 			rsp_q->ring_index++;
291 			if (rsp_q->ring_index == rsp_q->length) {
292 				rsp_q->ring_index = 0;
293 				rsp_q->ring_ptr = rsp_q->ring;
294 			} else {
295 				rsp_q->ring_ptr++;
296 			}
297 			no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
298 			    sizeof(new_pkt->data) : pending_bytes;
299 			if ((buffer_copy_offset + no_bytes) <= total_bytes) {
300 				memcpy((buf + buffer_copy_offset), new_pkt->data,
301 				    no_bytes);
302 				buffer_copy_offset += no_bytes;
303 				pending_bytes -= no_bytes;
304 				--entry_count_remaining;
305 			} else {
306 				ql_log(ql_log_warn, vha, 0x5044,
307 				    "Attempt to copy more that we got, optimizing..%x\n",
308 				    buffer_copy_offset);
309 				memcpy((buf + buffer_copy_offset), new_pkt->data,
310 				    total_bytes - buffer_copy_offset);
311 			}
312 
313 			((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
314 			/* flush signature */
315 			wmb();
316 		}
317 
318 		if (pending_bytes != 0 || entry_count_remaining != 0) {
319 			ql_log(ql_log_fatal, vha, 0x508b,
320 			    "Dropping partial Data, underrun bytes = 0x%x, entry cnts 0x%x\n",
321 			    total_bytes, entry_count_remaining);
322 			return -EIO;
323 		}
324 	} while (entry_count_remaining > 0);
325 
326 	be32_to_cpu_array((u32 *)buf, (__be32 *)buf, total_bytes >> 2);
327 
328 	return 0;
329 }
330 
331 /**
332  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
333  * @irq: interrupt number
334  * @dev_id: SCSI driver HA context
335  *
336  * Called by system whenever the host adapter generates an interrupt.
337  *
338  * Returns handled flag.
339  */
340 irqreturn_t
qla2100_intr_handler(int irq,void * dev_id)341 qla2100_intr_handler(int irq, void *dev_id)
342 {
343 	scsi_qla_host_t	*vha;
344 	struct qla_hw_data *ha;
345 	struct device_reg_2xxx __iomem *reg;
346 	int		status;
347 	unsigned long	iter;
348 	uint16_t	hccr;
349 	uint16_t	mb[8];
350 	struct rsp_que *rsp;
351 	unsigned long	flags;
352 
353 	rsp = (struct rsp_que *) dev_id;
354 	if (!rsp) {
355 		ql_log(ql_log_info, NULL, 0x505d,
356 		    "%s: NULL response queue pointer.\n", __func__);
357 		return (IRQ_NONE);
358 	}
359 
360 	ha = rsp->hw;
361 	reg = &ha->iobase->isp;
362 	status = 0;
363 
364 	spin_lock_irqsave(&ha->hardware_lock, flags);
365 	vha = pci_get_drvdata(ha->pdev);
366 	for (iter = 50; iter--; ) {
367 		hccr = rd_reg_word(&reg->hccr);
368 		if (qla2x00_check_reg16_for_disconnect(vha, hccr))
369 			break;
370 		if (hccr & HCCR_RISC_PAUSE) {
371 			if (pci_channel_offline(ha->pdev))
372 				break;
373 
374 			/*
375 			 * Issue a "HARD" reset in order for the RISC interrupt
376 			 * bit to be cleared.  Schedule a big hammer to get
377 			 * out of the RISC PAUSED state.
378 			 */
379 			wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
380 			rd_reg_word(&reg->hccr);
381 
382 			ha->isp_ops->fw_dump(vha);
383 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
384 			break;
385 		} else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
386 			break;
387 
388 		if (rd_reg_word(&reg->semaphore) & BIT_0) {
389 			wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
390 			rd_reg_word(&reg->hccr);
391 
392 			/* Get mailbox data. */
393 			mb[0] = RD_MAILBOX_REG(ha, reg, 0);
394 			if (mb[0] > 0x3fff && mb[0] < 0x8000) {
395 				qla2x00_mbx_completion(vha, mb[0]);
396 				status |= MBX_INTERRUPT;
397 			} else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
398 				mb[1] = RD_MAILBOX_REG(ha, reg, 1);
399 				mb[2] = RD_MAILBOX_REG(ha, reg, 2);
400 				mb[3] = RD_MAILBOX_REG(ha, reg, 3);
401 				qla2x00_async_event(vha, rsp, mb);
402 			} else {
403 				/*EMPTY*/
404 				ql_dbg(ql_dbg_async, vha, 0x5025,
405 				    "Unrecognized interrupt type (%d).\n",
406 				    mb[0]);
407 			}
408 			/* Release mailbox registers. */
409 			wrt_reg_word(&reg->semaphore, 0);
410 			rd_reg_word(&reg->semaphore);
411 		} else {
412 			qla2x00_process_response_queue(rsp);
413 
414 			wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
415 			rd_reg_word(&reg->hccr);
416 		}
417 	}
418 	qla2x00_handle_mbx_completion(ha, status);
419 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
420 
421 	return (IRQ_HANDLED);
422 }
423 
424 bool
qla2x00_check_reg32_for_disconnect(scsi_qla_host_t * vha,uint32_t reg)425 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
426 {
427 	/* Check for PCI disconnection */
428 	if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
429 		if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
430 		    !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
431 		    !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
432 			qla_schedule_eeh_work(vha);
433 		}
434 		return true;
435 	} else
436 		return false;
437 }
438 
439 bool
qla2x00_check_reg16_for_disconnect(scsi_qla_host_t * vha,uint16_t reg)440 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
441 {
442 	return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
443 }
444 
445 /**
446  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
447  * @irq: interrupt number
448  * @dev_id: SCSI driver HA context
449  *
450  * Called by system whenever the host adapter generates an interrupt.
451  *
452  * Returns handled flag.
453  */
454 irqreturn_t
qla2300_intr_handler(int irq,void * dev_id)455 qla2300_intr_handler(int irq, void *dev_id)
456 {
457 	scsi_qla_host_t	*vha;
458 	struct device_reg_2xxx __iomem *reg;
459 	int		status;
460 	unsigned long	iter;
461 	uint32_t	stat;
462 	uint16_t	hccr;
463 	uint16_t	mb[8];
464 	struct rsp_que *rsp;
465 	struct qla_hw_data *ha;
466 	unsigned long	flags;
467 
468 	rsp = (struct rsp_que *) dev_id;
469 	if (!rsp) {
470 		ql_log(ql_log_info, NULL, 0x5058,
471 		    "%s: NULL response queue pointer.\n", __func__);
472 		return (IRQ_NONE);
473 	}
474 
475 	ha = rsp->hw;
476 	reg = &ha->iobase->isp;
477 	status = 0;
478 
479 	spin_lock_irqsave(&ha->hardware_lock, flags);
480 	vha = pci_get_drvdata(ha->pdev);
481 	for (iter = 50; iter--; ) {
482 		stat = rd_reg_dword(&reg->u.isp2300.host_status);
483 		if (qla2x00_check_reg32_for_disconnect(vha, stat))
484 			break;
485 		if (stat & HSR_RISC_PAUSED) {
486 			if (unlikely(pci_channel_offline(ha->pdev)))
487 				break;
488 
489 			hccr = rd_reg_word(&reg->hccr);
490 
491 			if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
492 				ql_log(ql_log_warn, vha, 0x5026,
493 				    "Parity error -- HCCR=%x, Dumping "
494 				    "firmware.\n", hccr);
495 			else
496 				ql_log(ql_log_warn, vha, 0x5027,
497 				    "RISC paused -- HCCR=%x, Dumping "
498 				    "firmware.\n", hccr);
499 
500 			/*
501 			 * Issue a "HARD" reset in order for the RISC
502 			 * interrupt bit to be cleared.  Schedule a big
503 			 * hammer to get out of the RISC PAUSED state.
504 			 */
505 			wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
506 			rd_reg_word(&reg->hccr);
507 
508 			ha->isp_ops->fw_dump(vha);
509 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
510 			break;
511 		} else if ((stat & HSR_RISC_INT) == 0)
512 			break;
513 
514 		switch (stat & 0xff) {
515 		case 0x1:
516 		case 0x2:
517 		case 0x10:
518 		case 0x11:
519 			qla2x00_mbx_completion(vha, MSW(stat));
520 			status |= MBX_INTERRUPT;
521 
522 			/* Release mailbox registers. */
523 			wrt_reg_word(&reg->semaphore, 0);
524 			break;
525 		case 0x12:
526 			mb[0] = MSW(stat);
527 			mb[1] = RD_MAILBOX_REG(ha, reg, 1);
528 			mb[2] = RD_MAILBOX_REG(ha, reg, 2);
529 			mb[3] = RD_MAILBOX_REG(ha, reg, 3);
530 			qla2x00_async_event(vha, rsp, mb);
531 			break;
532 		case 0x13:
533 			qla2x00_process_response_queue(rsp);
534 			break;
535 		case 0x15:
536 			mb[0] = MBA_CMPLT_1_16BIT;
537 			mb[1] = MSW(stat);
538 			qla2x00_async_event(vha, rsp, mb);
539 			break;
540 		case 0x16:
541 			mb[0] = MBA_SCSI_COMPLETION;
542 			mb[1] = MSW(stat);
543 			mb[2] = RD_MAILBOX_REG(ha, reg, 2);
544 			qla2x00_async_event(vha, rsp, mb);
545 			break;
546 		default:
547 			ql_dbg(ql_dbg_async, vha, 0x5028,
548 			    "Unrecognized interrupt type (%d).\n", stat & 0xff);
549 			break;
550 		}
551 		wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
552 		rd_reg_word_relaxed(&reg->hccr);
553 	}
554 	qla2x00_handle_mbx_completion(ha, status);
555 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
556 
557 	return (IRQ_HANDLED);
558 }
559 
560 /**
561  * qla2x00_mbx_completion() - Process mailbox command completions.
562  * @vha: SCSI driver HA context
563  * @mb0: Mailbox0 register
564  */
565 static void
qla2x00_mbx_completion(scsi_qla_host_t * vha,uint16_t mb0)566 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
567 {
568 	uint16_t	cnt;
569 	uint32_t	mboxes;
570 	__le16 __iomem *wptr;
571 	struct qla_hw_data *ha = vha->hw;
572 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
573 
574 	/* Read all mbox registers? */
575 	WARN_ON_ONCE(ha->mbx_count > 32);
576 	mboxes = (1ULL << ha->mbx_count) - 1;
577 	if (!ha->mcp)
578 		ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
579 	else
580 		mboxes = ha->mcp->in_mb;
581 
582 	/* Load return mailbox registers. */
583 	ha->flags.mbox_int = 1;
584 	ha->mailbox_out[0] = mb0;
585 	mboxes >>= 1;
586 	wptr = MAILBOX_REG(ha, reg, 1);
587 
588 	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
589 		if (IS_QLA2200(ha) && cnt == 8)
590 			wptr = MAILBOX_REG(ha, reg, 8);
591 		if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
592 			ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
593 		else if (mboxes & BIT_0)
594 			ha->mailbox_out[cnt] = rd_reg_word(wptr);
595 
596 		wptr++;
597 		mboxes >>= 1;
598 	}
599 }
600 
601 static void
qla81xx_idc_event(scsi_qla_host_t * vha,uint16_t aen,uint16_t descr)602 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
603 {
604 	static char *event[] =
605 		{ "Complete", "Request Notification", "Time Extension" };
606 	int rval;
607 	struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
608 	struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
609 	__le16 __iomem *wptr;
610 	uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
611 
612 	/* Seed data -- mailbox1 -> mailbox7. */
613 	if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
614 		wptr = &reg24->mailbox1;
615 	else if (IS_QLA8044(vha->hw))
616 		wptr = &reg82->mailbox_out[1];
617 	else
618 		return;
619 
620 	for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
621 		mb[cnt] = rd_reg_word(wptr);
622 
623 	ql_dbg(ql_dbg_async, vha, 0x5021,
624 	    "Inter-Driver Communication %s -- "
625 	    "%04x %04x %04x %04x %04x %04x %04x.\n",
626 	    event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
627 	    mb[4], mb[5], mb[6]);
628 	switch (aen) {
629 	/* Handle IDC Error completion case. */
630 	case MBA_IDC_COMPLETE:
631 		if (mb[1] >> 15) {
632 			vha->hw->flags.idc_compl_status = 1;
633 			if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
634 				complete(&vha->hw->dcbx_comp);
635 		}
636 		break;
637 
638 	case MBA_IDC_NOTIFY:
639 		/* Acknowledgement needed? [Notify && non-zero timeout]. */
640 		timeout = (descr >> 8) & 0xf;
641 		ql_dbg(ql_dbg_async, vha, 0x5022,
642 		    "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
643 		    vha->host_no, event[aen & 0xff], timeout);
644 
645 		if (!timeout)
646 			return;
647 		rval = qla2x00_post_idc_ack_work(vha, mb);
648 		if (rval != QLA_SUCCESS)
649 			ql_log(ql_log_warn, vha, 0x5023,
650 			    "IDC failed to post ACK.\n");
651 		break;
652 	case MBA_IDC_TIME_EXT:
653 		vha->hw->idc_extend_tmo = descr;
654 		ql_dbg(ql_dbg_async, vha, 0x5087,
655 		    "%lu Inter-Driver Communication %s -- "
656 		    "Extend timeout by=%d.\n",
657 		    vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
658 		break;
659 	}
660 }
661 
662 #define LS_UNKNOWN	2
663 const char *
qla2x00_get_link_speed_str(struct qla_hw_data * ha,uint16_t speed)664 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
665 {
666 	static const char *const link_speeds[] = {
667 		"1", "2", "?", "4", "8", "16", "32", "64", "10"
668 	};
669 #define	QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
670 
671 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
672 		return link_speeds[0];
673 	else if (speed == 0x13)
674 		return link_speeds[QLA_LAST_SPEED];
675 	else if (speed < QLA_LAST_SPEED)
676 		return link_speeds[speed];
677 	else
678 		return link_speeds[LS_UNKNOWN];
679 }
680 
681 static void
qla83xx_handle_8200_aen(scsi_qla_host_t * vha,uint16_t * mb)682 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
683 {
684 	struct qla_hw_data *ha = vha->hw;
685 
686 	/*
687 	 * 8200 AEN Interpretation:
688 	 * mb[0] = AEN code
689 	 * mb[1] = AEN Reason code
690 	 * mb[2] = LSW of Peg-Halt Status-1 Register
691 	 * mb[6] = MSW of Peg-Halt Status-1 Register
692 	 * mb[3] = LSW of Peg-Halt Status-2 register
693 	 * mb[7] = MSW of Peg-Halt Status-2 register
694 	 * mb[4] = IDC Device-State Register value
695 	 * mb[5] = IDC Driver-Presence Register value
696 	 */
697 	ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
698 	    "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
699 	    mb[0], mb[1], mb[2], mb[6]);
700 	ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
701 	    "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
702 	    "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
703 
704 	if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
705 				IDC_HEARTBEAT_FAILURE)) {
706 		ha->flags.nic_core_hung = 1;
707 		ql_log(ql_log_warn, vha, 0x5060,
708 		    "83XX: F/W Error Reported: Check if reset required.\n");
709 
710 		if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
711 			uint32_t protocol_engine_id, fw_err_code, err_level;
712 
713 			/*
714 			 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
715 			 *  - PEG-Halt Status-1 Register:
716 			 *	(LSW = mb[2], MSW = mb[6])
717 			 *	Bits 0-7   = protocol-engine ID
718 			 *	Bits 8-28  = f/w error code
719 			 *	Bits 29-31 = Error-level
720 			 *	    Error-level 0x1 = Non-Fatal error
721 			 *	    Error-level 0x2 = Recoverable Fatal error
722 			 *	    Error-level 0x4 = UnRecoverable Fatal error
723 			 *  - PEG-Halt Status-2 Register:
724 			 *	(LSW = mb[3], MSW = mb[7])
725 			 */
726 			protocol_engine_id = (mb[2] & 0xff);
727 			fw_err_code = (((mb[2] & 0xff00) >> 8) |
728 			    ((mb[6] & 0x1fff) << 8));
729 			err_level = ((mb[6] & 0xe000) >> 13);
730 			ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
731 			    "Register: protocol_engine_id=0x%x "
732 			    "fw_err_code=0x%x err_level=0x%x.\n",
733 			    protocol_engine_id, fw_err_code, err_level);
734 			ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
735 			    "Register: 0x%x%x.\n", mb[7], mb[3]);
736 			if (err_level == ERR_LEVEL_NON_FATAL) {
737 				ql_log(ql_log_warn, vha, 0x5063,
738 				    "Not a fatal error, f/w has recovered itself.\n");
739 			} else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
740 				ql_log(ql_log_fatal, vha, 0x5064,
741 				    "Recoverable Fatal error: Chip reset "
742 				    "required.\n");
743 				qla83xx_schedule_work(vha,
744 				    QLA83XX_NIC_CORE_RESET);
745 			} else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
746 				ql_log(ql_log_fatal, vha, 0x5065,
747 				    "Unrecoverable Fatal error: Set FAILED "
748 				    "state, reboot required.\n");
749 				qla83xx_schedule_work(vha,
750 				    QLA83XX_NIC_CORE_UNRECOVERABLE);
751 			}
752 		}
753 
754 		if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
755 			uint16_t peg_fw_state, nw_interface_link_up;
756 			uint16_t nw_interface_signal_detect, sfp_status;
757 			uint16_t htbt_counter, htbt_monitor_enable;
758 			uint16_t sfp_additional_info, sfp_multirate;
759 			uint16_t sfp_tx_fault, link_speed, dcbx_status;
760 
761 			/*
762 			 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
763 			 *  - PEG-to-FC Status Register:
764 			 *	(LSW = mb[2], MSW = mb[6])
765 			 *	Bits 0-7   = Peg-Firmware state
766 			 *	Bit 8      = N/W Interface Link-up
767 			 *	Bit 9      = N/W Interface signal detected
768 			 *	Bits 10-11 = SFP Status
769 			 *	  SFP Status 0x0 = SFP+ transceiver not expected
770 			 *	  SFP Status 0x1 = SFP+ transceiver not present
771 			 *	  SFP Status 0x2 = SFP+ transceiver invalid
772 			 *	  SFP Status 0x3 = SFP+ transceiver present and
773 			 *	  valid
774 			 *	Bits 12-14 = Heartbeat Counter
775 			 *	Bit 15     = Heartbeat Monitor Enable
776 			 *	Bits 16-17 = SFP Additional Info
777 			 *	  SFP info 0x0 = Unregocnized transceiver for
778 			 *	  Ethernet
779 			 *	  SFP info 0x1 = SFP+ brand validation failed
780 			 *	  SFP info 0x2 = SFP+ speed validation failed
781 			 *	  SFP info 0x3 = SFP+ access error
782 			 *	Bit 18     = SFP Multirate
783 			 *	Bit 19     = SFP Tx Fault
784 			 *	Bits 20-22 = Link Speed
785 			 *	Bits 23-27 = Reserved
786 			 *	Bits 28-30 = DCBX Status
787 			 *	  DCBX Status 0x0 = DCBX Disabled
788 			 *	  DCBX Status 0x1 = DCBX Enabled
789 			 *	  DCBX Status 0x2 = DCBX Exchange error
790 			 *	Bit 31     = Reserved
791 			 */
792 			peg_fw_state = (mb[2] & 0x00ff);
793 			nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
794 			nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
795 			sfp_status = ((mb[2] & 0x0c00) >> 10);
796 			htbt_counter = ((mb[2] & 0x7000) >> 12);
797 			htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
798 			sfp_additional_info = (mb[6] & 0x0003);
799 			sfp_multirate = ((mb[6] & 0x0004) >> 2);
800 			sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
801 			link_speed = ((mb[6] & 0x0070) >> 4);
802 			dcbx_status = ((mb[6] & 0x7000) >> 12);
803 
804 			ql_log(ql_log_warn, vha, 0x5066,
805 			    "Peg-to-Fc Status Register:\n"
806 			    "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
807 			    "nw_interface_signal_detect=0x%x"
808 			    "\nsfp_statis=0x%x.\n ", peg_fw_state,
809 			    nw_interface_link_up, nw_interface_signal_detect,
810 			    sfp_status);
811 			ql_log(ql_log_warn, vha, 0x5067,
812 			    "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
813 			    "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
814 			    htbt_counter, htbt_monitor_enable,
815 			    sfp_additional_info, sfp_multirate);
816 			ql_log(ql_log_warn, vha, 0x5068,
817 			    "sfp_tx_fault=0x%x, link_state=0x%x, "
818 			    "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
819 			    dcbx_status);
820 
821 			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
822 		}
823 
824 		if (mb[1] & IDC_HEARTBEAT_FAILURE) {
825 			ql_log(ql_log_warn, vha, 0x5069,
826 			    "Heartbeat Failure encountered, chip reset "
827 			    "required.\n");
828 
829 			qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
830 		}
831 	}
832 
833 	if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
834 		ql_log(ql_log_info, vha, 0x506a,
835 		    "IDC Device-State changed = 0x%x.\n", mb[4]);
836 		if (ha->flags.nic_core_reset_owner)
837 			return;
838 		qla83xx_schedule_work(vha, MBA_IDC_AEN);
839 	}
840 }
841 
842 /**
843  * qla27xx_copy_multiple_pkt() - Copy over purex/purls packets that can
844  * span over multiple IOCBs.
845  * @vha: SCSI driver HA context
846  * @pkt: ELS packet
847  * @rsp: Response queue
848  * @is_purls: True, for Unsolicited Received FC-NVMe LS rsp IOCB
849  *            false, for Unsolicited Received ELS IOCB
850  * @byte_order: True, to change the byte ordering of iocb payload
851  */
852 struct purex_item *
qla27xx_copy_multiple_pkt(struct scsi_qla_host * vha,void ** pkt,struct rsp_que ** rsp,bool is_purls,bool byte_order)853 qla27xx_copy_multiple_pkt(struct scsi_qla_host *vha, void **pkt,
854 			  struct rsp_que **rsp, bool is_purls,
855 			  bool byte_order)
856 {
857 	struct purex_entry_24xx *purex = NULL;
858 	struct pt_ls4_rx_unsol *purls = NULL;
859 	struct rsp_que *rsp_q = *rsp;
860 	sts_cont_entry_t *new_pkt;
861 	uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
862 	uint16_t buffer_copy_offset = 0, payload_size = 0;
863 	uint16_t entry_count, entry_count_remaining;
864 	struct purex_item *item;
865 	void *iocb_pkt = NULL;
866 
867 	if (is_purls) {
868 		purls = *pkt;
869 		total_bytes = (le16_to_cpu(purls->frame_size) & 0x0FFF) -
870 			      PURX_ELS_HEADER_SIZE;
871 		entry_count = entry_count_remaining = purls->entry_count;
872 		payload_size = sizeof(purls->payload);
873 	} else {
874 		purex = *pkt;
875 		total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF) -
876 			      PURX_ELS_HEADER_SIZE;
877 		entry_count = entry_count_remaining = purex->entry_count;
878 		payload_size = sizeof(purex->els_frame_payload);
879 	}
880 
881 	pending_bytes = total_bytes;
882 	no_bytes = (pending_bytes > payload_size) ? payload_size :
883 		   pending_bytes;
884 	ql_dbg(ql_dbg_async, vha, 0x509a,
885 	       "%s LS, frame_size 0x%x, entry count %d\n",
886 	       (is_purls ? "PURLS" : "FPIN"), total_bytes, entry_count);
887 
888 	item = qla24xx_alloc_purex_item(vha, total_bytes);
889 	if (!item)
890 		return item;
891 
892 	iocb_pkt = &item->iocb;
893 
894 	if (is_purls)
895 		memcpy(iocb_pkt, &purls->payload[0], no_bytes);
896 	else
897 		memcpy(iocb_pkt, &purex->els_frame_payload[0], no_bytes);
898 	buffer_copy_offset += no_bytes;
899 	pending_bytes -= no_bytes;
900 	--entry_count_remaining;
901 
902 	if (is_purls)
903 		((response_t *)purls)->signature = RESPONSE_PROCESSED;
904 	else
905 		((response_t *)purex)->signature = RESPONSE_PROCESSED;
906 	wmb();
907 
908 	do {
909 		while ((total_bytes > 0) && (entry_count_remaining > 0)) {
910 			if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
911 				ql_dbg(ql_dbg_async, vha, 0x5084,
912 				       "Ran out of IOCBs, partial data 0x%x\n",
913 				       buffer_copy_offset);
914 				cpu_relax();
915 				continue;
916 			}
917 
918 			new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
919 			*pkt = new_pkt;
920 
921 			if (new_pkt->entry_type != STATUS_CONT_TYPE) {
922 				ql_log(ql_log_warn, vha, 0x507a,
923 				       "Unexpected IOCB type, partial data 0x%x\n",
924 				       buffer_copy_offset);
925 				break;
926 			}
927 
928 			rsp_q->ring_index++;
929 			if (rsp_q->ring_index == rsp_q->length) {
930 				rsp_q->ring_index = 0;
931 				rsp_q->ring_ptr = rsp_q->ring;
932 			} else {
933 				rsp_q->ring_ptr++;
934 			}
935 			no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
936 				sizeof(new_pkt->data) : pending_bytes;
937 			if ((buffer_copy_offset + no_bytes) <= total_bytes) {
938 				memcpy(((uint8_t *)iocb_pkt + buffer_copy_offset),
939 				       new_pkt->data, no_bytes);
940 				buffer_copy_offset += no_bytes;
941 				pending_bytes -= no_bytes;
942 				--entry_count_remaining;
943 			} else {
944 				ql_log(ql_log_warn, vha, 0x5044,
945 				       "Attempt to copy more that we got, optimizing..%x\n",
946 				       buffer_copy_offset);
947 				memcpy(((uint8_t *)iocb_pkt + buffer_copy_offset),
948 				       new_pkt->data,
949 				       total_bytes - buffer_copy_offset);
950 			}
951 
952 			((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
953 			wmb();
954 		}
955 
956 		if (pending_bytes != 0 || entry_count_remaining != 0) {
957 			ql_log(ql_log_fatal, vha, 0x508b,
958 			       "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
959 			       total_bytes, entry_count_remaining);
960 			qla24xx_free_purex_item(item);
961 			return NULL;
962 		}
963 	} while (entry_count_remaining > 0);
964 
965 	if (byte_order)
966 		host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
967 
968 	return item;
969 }
970 
971 int
qla2x00_is_a_vp_did(scsi_qla_host_t * vha,uint32_t rscn_entry)972 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
973 {
974 	struct qla_hw_data *ha = vha->hw;
975 	scsi_qla_host_t *vp;
976 	uint32_t vp_did;
977 	unsigned long flags;
978 	int ret = 0;
979 
980 	if (!ha->num_vhosts)
981 		return ret;
982 
983 	spin_lock_irqsave(&ha->vport_slock, flags);
984 	list_for_each_entry(vp, &ha->vp_list, list) {
985 		vp_did = vp->d_id.b24;
986 		if (vp_did == rscn_entry) {
987 			ret = 1;
988 			break;
989 		}
990 	}
991 	spin_unlock_irqrestore(&ha->vport_slock, flags);
992 
993 	return ret;
994 }
995 
996 fc_port_t *
qla2x00_find_fcport_by_loopid(scsi_qla_host_t * vha,uint16_t loop_id)997 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
998 {
999 	fc_port_t *f, *tf;
1000 
1001 	f = tf = NULL;
1002 	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
1003 		if (f->loop_id == loop_id)
1004 			return f;
1005 	return NULL;
1006 }
1007 
1008 fc_port_t *
qla2x00_find_fcport_by_wwpn(scsi_qla_host_t * vha,u8 * wwpn,u8 incl_deleted)1009 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
1010 {
1011 	fc_port_t *f, *tf;
1012 
1013 	f = tf = NULL;
1014 	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
1015 		if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
1016 			if (incl_deleted)
1017 				return f;
1018 			else if (f->deleted == 0)
1019 				return f;
1020 		}
1021 	}
1022 	return NULL;
1023 }
1024 
1025 fc_port_t *
qla2x00_find_fcport_by_nportid(scsi_qla_host_t * vha,port_id_t * id,u8 incl_deleted)1026 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
1027 	u8 incl_deleted)
1028 {
1029 	fc_port_t *f, *tf;
1030 
1031 	f = tf = NULL;
1032 	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
1033 		if (f->d_id.b24 == id->b24) {
1034 			if (incl_deleted)
1035 				return f;
1036 			else if (f->deleted == 0)
1037 				return f;
1038 		}
1039 	}
1040 	return NULL;
1041 }
1042 
1043 /* Shall be called only on supported adapters. */
1044 static void
qla27xx_handle_8200_aen(scsi_qla_host_t * vha,uint16_t * mb)1045 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
1046 {
1047 	struct qla_hw_data *ha = vha->hw;
1048 	bool reset_isp_needed = false;
1049 
1050 	ql_log(ql_log_warn, vha, 0x02f0,
1051 	       "MPI Heartbeat stop. MPI reset is%s needed. "
1052 	       "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
1053 	       mb[1] & BIT_8 ? "" : " not",
1054 	       mb[0], mb[1], mb[2], mb[3]);
1055 
1056 	if ((mb[1] & BIT_8) == 0)
1057 		return;
1058 
1059 	ql_log(ql_log_warn, vha, 0x02f1,
1060 	       "MPI Heartbeat stop. FW dump needed\n");
1061 
1062 	if (ql2xfulldump_on_mpifail) {
1063 		ha->isp_ops->fw_dump(vha);
1064 		reset_isp_needed = true;
1065 	}
1066 
1067 	ha->isp_ops->mpi_fw_dump(vha, 1);
1068 
1069 	if (reset_isp_needed) {
1070 		vha->hw->flags.fw_init_done = 0;
1071 		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1072 		qla2xxx_wake_dpc(vha);
1073 	}
1074 }
1075 
1076 static struct purex_item *
qla24xx_alloc_purex_item(scsi_qla_host_t * vha,uint16_t size)1077 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
1078 {
1079 	struct purex_item *item = NULL;
1080 	uint8_t item_hdr_size = sizeof(*item);
1081 
1082 	if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
1083 		item = kzalloc(item_hdr_size +
1084 		    (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
1085 	} else {
1086 		if (atomic_inc_return(&vha->default_item.in_use) == 1) {
1087 			item = &vha->default_item;
1088 			goto initialize_purex_header;
1089 		} else {
1090 			item = kzalloc(item_hdr_size, GFP_ATOMIC);
1091 		}
1092 	}
1093 	if (!item) {
1094 		ql_log(ql_log_warn, vha, 0x5092,
1095 		       ">> Failed allocate purex list item.\n");
1096 
1097 		return NULL;
1098 	}
1099 
1100 initialize_purex_header:
1101 	item->vha = vha;
1102 	item->size = size;
1103 	return item;
1104 }
1105 
1106 void
qla24xx_queue_purex_item(scsi_qla_host_t * vha,struct purex_item * pkt,void (* process_item)(struct scsi_qla_host * vha,struct purex_item * pkt))1107 qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
1108 			 void (*process_item)(struct scsi_qla_host *vha,
1109 					      struct purex_item *pkt))
1110 {
1111 	struct purex_list *list = &vha->purex_list;
1112 	ulong flags;
1113 
1114 	pkt->process_item = process_item;
1115 
1116 	spin_lock_irqsave(&list->lock, flags);
1117 	list_add_tail(&pkt->list, &list->head);
1118 	spin_unlock_irqrestore(&list->lock, flags);
1119 
1120 	set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
1121 }
1122 
1123 /**
1124  * qla24xx_copy_std_pkt() - Copy over purex ELS which is
1125  * contained in a single IOCB.
1126  * purex packet.
1127  * @vha: SCSI driver HA context
1128  * @pkt: ELS packet
1129  */
1130 static struct purex_item
qla24xx_copy_std_pkt(struct scsi_qla_host * vha,void * pkt)1131 *qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
1132 {
1133 	struct purex_item *item;
1134 
1135 	item = qla24xx_alloc_purex_item(vha,
1136 					QLA_DEFAULT_PAYLOAD_SIZE);
1137 	if (!item)
1138 		return item;
1139 
1140 	memcpy(&item->iocb, pkt, sizeof(item->iocb));
1141 	return item;
1142 }
1143 
1144 /**
1145  * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
1146  * span over multiple IOCBs.
1147  * @vha: SCSI driver HA context
1148  * @pkt: ELS packet
1149  * @rsp: Response queue
1150  */
1151 static struct purex_item *
qla27xx_copy_fpin_pkt(struct scsi_qla_host * vha,void ** pkt,struct rsp_que ** rsp)1152 qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
1153 		      struct rsp_que **rsp)
1154 {
1155 	struct purex_entry_24xx *purex = *pkt;
1156 	struct rsp_que *rsp_q = *rsp;
1157 	sts_cont_entry_t *new_pkt;
1158 	uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
1159 	uint16_t buffer_copy_offset = 0;
1160 	uint16_t entry_count, entry_count_remaining;
1161 	struct purex_item *item;
1162 	void *fpin_pkt = NULL;
1163 
1164 	total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
1165 	    - PURX_ELS_HEADER_SIZE;
1166 	pending_bytes = total_bytes;
1167 	entry_count = entry_count_remaining = purex->entry_count;
1168 	no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
1169 		   sizeof(purex->els_frame_payload) : pending_bytes;
1170 	ql_log(ql_log_info, vha, 0x509a,
1171 	       "FPIN ELS, frame_size 0x%x, entry count %d\n",
1172 	       total_bytes, entry_count);
1173 
1174 	item = qla24xx_alloc_purex_item(vha, total_bytes);
1175 	if (!item)
1176 		return item;
1177 
1178 	fpin_pkt = &item->iocb;
1179 
1180 	memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
1181 	buffer_copy_offset += no_bytes;
1182 	pending_bytes -= no_bytes;
1183 	--entry_count_remaining;
1184 
1185 	((response_t *)purex)->signature = RESPONSE_PROCESSED;
1186 	wmb();
1187 
1188 	do {
1189 		while ((total_bytes > 0) && (entry_count_remaining > 0)) {
1190 			if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
1191 				ql_dbg(ql_dbg_async, vha, 0x5084,
1192 				       "Ran out of IOCBs, partial data 0x%x\n",
1193 				       buffer_copy_offset);
1194 				cpu_relax();
1195 				continue;
1196 			}
1197 
1198 			new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
1199 			*pkt = new_pkt;
1200 
1201 			if (new_pkt->entry_type != STATUS_CONT_TYPE) {
1202 				ql_log(ql_log_warn, vha, 0x507a,
1203 				       "Unexpected IOCB type, partial data 0x%x\n",
1204 				       buffer_copy_offset);
1205 				break;
1206 			}
1207 
1208 			rsp_q->ring_index++;
1209 			if (rsp_q->ring_index == rsp_q->length) {
1210 				rsp_q->ring_index = 0;
1211 				rsp_q->ring_ptr = rsp_q->ring;
1212 			} else {
1213 				rsp_q->ring_ptr++;
1214 			}
1215 			no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
1216 			    sizeof(new_pkt->data) : pending_bytes;
1217 			if ((buffer_copy_offset + no_bytes) <= total_bytes) {
1218 				memcpy(((uint8_t *)fpin_pkt +
1219 				    buffer_copy_offset), new_pkt->data,
1220 				    no_bytes);
1221 				buffer_copy_offset += no_bytes;
1222 				pending_bytes -= no_bytes;
1223 				--entry_count_remaining;
1224 			} else {
1225 				ql_log(ql_log_warn, vha, 0x5044,
1226 				       "Attempt to copy more that we got, optimizing..%x\n",
1227 				       buffer_copy_offset);
1228 				memcpy(((uint8_t *)fpin_pkt +
1229 				    buffer_copy_offset), new_pkt->data,
1230 				    total_bytes - buffer_copy_offset);
1231 			}
1232 
1233 			((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
1234 			wmb();
1235 		}
1236 
1237 		if (pending_bytes != 0 || entry_count_remaining != 0) {
1238 			ql_log(ql_log_fatal, vha, 0x508b,
1239 			       "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
1240 			       total_bytes, entry_count_remaining);
1241 			qla24xx_free_purex_item(item);
1242 			return NULL;
1243 		}
1244 	} while (entry_count_remaining > 0);
1245 	host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
1246 	return item;
1247 }
1248 
1249 /**
1250  * qla2x00_async_event() - Process aynchronous events.
1251  * @vha: SCSI driver HA context
1252  * @rsp: response queue
1253  * @mb: Mailbox registers (0 - 3)
1254  */
1255 void
qla2x00_async_event(scsi_qla_host_t * vha,struct rsp_que * rsp,uint16_t * mb)1256 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
1257 {
1258 	uint16_t	handle_cnt;
1259 	uint16_t	cnt, mbx;
1260 	uint32_t	handles[5];
1261 	struct qla_hw_data *ha = vha->hw;
1262 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1263 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
1264 	struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1265 	uint32_t	rscn_entry, host_pid;
1266 	unsigned long	flags;
1267 	fc_port_t	*fcport = NULL;
1268 
1269 	if (!vha->hw->flags.fw_started) {
1270 		ql_log(ql_log_warn, vha, 0x50ff,
1271 		    "Dropping AEN - %04x %04x %04x %04x.\n",
1272 		    mb[0], mb[1], mb[2], mb[3]);
1273 		return;
1274 	}
1275 
1276 	/* Setup to process RIO completion. */
1277 	handle_cnt = 0;
1278 	if (IS_CNA_CAPABLE(ha))
1279 		goto skip_rio;
1280 	switch (mb[0]) {
1281 	case MBA_SCSI_COMPLETION:
1282 		handles[0] = make_handle(mb[2], mb[1]);
1283 		handle_cnt = 1;
1284 		break;
1285 	case MBA_CMPLT_1_16BIT:
1286 		handles[0] = mb[1];
1287 		handle_cnt = 1;
1288 		mb[0] = MBA_SCSI_COMPLETION;
1289 		break;
1290 	case MBA_CMPLT_2_16BIT:
1291 		handles[0] = mb[1];
1292 		handles[1] = mb[2];
1293 		handle_cnt = 2;
1294 		mb[0] = MBA_SCSI_COMPLETION;
1295 		break;
1296 	case MBA_CMPLT_3_16BIT:
1297 		handles[0] = mb[1];
1298 		handles[1] = mb[2];
1299 		handles[2] = mb[3];
1300 		handle_cnt = 3;
1301 		mb[0] = MBA_SCSI_COMPLETION;
1302 		break;
1303 	case MBA_CMPLT_4_16BIT:
1304 		handles[0] = mb[1];
1305 		handles[1] = mb[2];
1306 		handles[2] = mb[3];
1307 		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1308 		handle_cnt = 4;
1309 		mb[0] = MBA_SCSI_COMPLETION;
1310 		break;
1311 	case MBA_CMPLT_5_16BIT:
1312 		handles[0] = mb[1];
1313 		handles[1] = mb[2];
1314 		handles[2] = mb[3];
1315 		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1316 		handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1317 		handle_cnt = 5;
1318 		mb[0] = MBA_SCSI_COMPLETION;
1319 		break;
1320 	case MBA_CMPLT_2_32BIT:
1321 		handles[0] = make_handle(mb[2], mb[1]);
1322 		handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1323 					 RD_MAILBOX_REG(ha, reg, 6));
1324 		handle_cnt = 2;
1325 		mb[0] = MBA_SCSI_COMPLETION;
1326 		break;
1327 	default:
1328 		break;
1329 	}
1330 skip_rio:
1331 	switch (mb[0]) {
1332 	case MBA_SCSI_COMPLETION:	/* Fast Post */
1333 		if (!vha->flags.online)
1334 			break;
1335 
1336 		for (cnt = 0; cnt < handle_cnt; cnt++)
1337 			qla2x00_process_completed_request(vha, rsp->req,
1338 				handles[cnt]);
1339 		break;
1340 
1341 	case MBA_RESET:			/* Reset */
1342 		ql_dbg(ql_dbg_async, vha, 0x5002,
1343 		    "Asynchronous RESET.\n");
1344 
1345 		set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1346 		break;
1347 
1348 	case MBA_SYSTEM_ERR:		/* System Error */
1349 		mbx = 0;
1350 
1351 		vha->hw_err_cnt++;
1352 
1353 		if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1354 		    IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1355 			u16 m[4];
1356 
1357 			m[0] = rd_reg_word(&reg24->mailbox4);
1358 			m[1] = rd_reg_word(&reg24->mailbox5);
1359 			m[2] = rd_reg_word(&reg24->mailbox6);
1360 			mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1361 
1362 			ql_log(ql_log_warn, vha, 0x5003,
1363 			    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1364 			    mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1365 		} else
1366 			ql_log(ql_log_warn, vha, 0x5003,
1367 			    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1368 			    mb[1], mb[2], mb[3]);
1369 
1370 		if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1371 		    rd_reg_word(&reg24->mailbox7) & BIT_8)
1372 			ha->isp_ops->mpi_fw_dump(vha, 1);
1373 		ha->isp_ops->fw_dump(vha);
1374 		ha->flags.fw_init_done = 0;
1375 		QLA_FW_STOPPED(ha);
1376 
1377 		if (IS_FWI2_CAPABLE(ha)) {
1378 			if (mb[1] == 0 && mb[2] == 0) {
1379 				ql_log(ql_log_fatal, vha, 0x5004,
1380 				    "Unrecoverable Hardware Error: adapter "
1381 				    "marked OFFLINE!\n");
1382 				vha->flags.online = 0;
1383 				vha->device_flags |= DFLG_DEV_FAILED;
1384 			} else {
1385 				/* Check to see if MPI timeout occurred */
1386 				if ((mbx & MBX_3) && (ha->port_no == 0))
1387 					set_bit(MPI_RESET_NEEDED,
1388 					    &vha->dpc_flags);
1389 
1390 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1391 			}
1392 		} else if (mb[1] == 0) {
1393 			ql_log(ql_log_fatal, vha, 0x5005,
1394 			    "Unrecoverable Hardware Error: adapter marked "
1395 			    "OFFLINE!\n");
1396 			vha->flags.online = 0;
1397 			vha->device_flags |= DFLG_DEV_FAILED;
1398 		} else
1399 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1400 		break;
1401 
1402 	case MBA_REQ_TRANSFER_ERR:	/* Request Transfer Error */
1403 		ql_log(ql_log_warn, vha, 0x5006,
1404 		    "ISP Request Transfer Error (%x).\n",  mb[1]);
1405 
1406 		vha->hw_err_cnt++;
1407 
1408 		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1409 		break;
1410 
1411 	case MBA_RSP_TRANSFER_ERR:	/* Response Transfer Error */
1412 		ql_log(ql_log_warn, vha, 0x5007,
1413 		    "ISP Response Transfer Error (%x).\n", mb[1]);
1414 
1415 		vha->hw_err_cnt++;
1416 
1417 		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1418 		break;
1419 
1420 	case MBA_WAKEUP_THRES:		/* Request Queue Wake-up */
1421 		ql_dbg(ql_dbg_async, vha, 0x5008,
1422 		    "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1423 		break;
1424 
1425 	case MBA_LOOP_INIT_ERR:
1426 		ql_log(ql_log_warn, vha, 0x5090,
1427 		    "LOOP INIT ERROR (%x).\n", mb[1]);
1428 		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1429 		break;
1430 
1431 	case MBA_LIP_OCCURRED:		/* Loop Initialization Procedure */
1432 		ha->flags.lip_ae = 1;
1433 
1434 		ql_dbg(ql_dbg_async, vha, 0x5009,
1435 		    "LIP occurred (%x).\n", mb[1]);
1436 
1437 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1438 			atomic_set(&vha->loop_state, LOOP_DOWN);
1439 			atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1440 			qla2x00_mark_all_devices_lost(vha);
1441 		}
1442 
1443 		if (vha->vp_idx) {
1444 			atomic_set(&vha->vp_state, VP_FAILED);
1445 			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1446 		}
1447 
1448 		set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1449 		set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1450 
1451 		vha->flags.management_server_logged_in = 0;
1452 		qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1453 		break;
1454 
1455 	case MBA_LOOP_UP:		/* Loop Up Event */
1456 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
1457 			ha->link_data_rate = PORT_SPEED_1GB;
1458 		else
1459 			ha->link_data_rate = mb[1];
1460 
1461 		ql_log(ql_log_info, vha, 0x500a,
1462 		    "LOOP UP detected (%s Gbps).\n",
1463 		    qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1464 
1465 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1466 			if (mb[2] & BIT_0)
1467 				ql_log(ql_log_info, vha, 0x11a0,
1468 				    "FEC=enabled (link up).\n");
1469 		}
1470 
1471 		vha->flags.management_server_logged_in = 0;
1472 		qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1473 
1474 		if (vha->link_down_time < vha->hw->port_down_retry_count) {
1475 			vha->short_link_down_cnt++;
1476 			vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
1477 		}
1478 
1479 		break;
1480 
1481 	case MBA_LOOP_DOWN:		/* Loop Down Event */
1482 		SAVE_TOPO(ha);
1483 		ha->flags.lip_ae = 0;
1484 		ha->current_topology = 0;
1485 		vha->link_down_time = 0;
1486 
1487 		mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1488 			? rd_reg_word(&reg24->mailbox4) : 0;
1489 		mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1490 			: mbx;
1491 		ql_log(ql_log_info, vha, 0x500b,
1492 		    "LOOP DOWN detected (%x %x %x %x).\n",
1493 		    mb[1], mb[2], mb[3], mbx);
1494 
1495 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1496 			atomic_set(&vha->loop_state, LOOP_DOWN);
1497 			atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1498 			/*
1499 			 * In case of loop down, restore WWPN from
1500 			 * NVRAM in case of FA-WWPN capable ISP
1501 			 * Restore for Physical Port only
1502 			 */
1503 			if (!vha->vp_idx) {
1504 				if (ha->flags.fawwpn_enabled &&
1505 				    (ha->current_topology == ISP_CFG_F)) {
1506 					memcpy(vha->port_name, ha->port_name, WWN_SIZE);
1507 					fc_host_port_name(vha->host) =
1508 					    wwn_to_u64(vha->port_name);
1509 					ql_dbg(ql_dbg_init + ql_dbg_verbose,
1510 					    vha, 0x00d8, "LOOP DOWN detected,"
1511 					    "restore WWPN %016llx\n",
1512 					    wwn_to_u64(vha->port_name));
1513 				}
1514 
1515 				clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1516 			}
1517 
1518 			vha->device_flags |= DFLG_NO_CABLE;
1519 			qla2x00_mark_all_devices_lost(vha);
1520 		}
1521 
1522 		if (vha->vp_idx) {
1523 			atomic_set(&vha->vp_state, VP_FAILED);
1524 			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1525 		}
1526 
1527 		vha->flags.management_server_logged_in = 0;
1528 		ha->link_data_rate = PORT_SPEED_UNKNOWN;
1529 		qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1530 		break;
1531 
1532 	case MBA_LIP_RESET:		/* LIP reset occurred */
1533 		ql_dbg(ql_dbg_async, vha, 0x500c,
1534 		    "LIP reset occurred (%x).\n", mb[1]);
1535 
1536 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1537 			atomic_set(&vha->loop_state, LOOP_DOWN);
1538 			atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1539 			qla2x00_mark_all_devices_lost(vha);
1540 		}
1541 
1542 		if (vha->vp_idx) {
1543 			atomic_set(&vha->vp_state, VP_FAILED);
1544 			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1545 		}
1546 
1547 		set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1548 
1549 		ha->operating_mode = LOOP;
1550 		vha->flags.management_server_logged_in = 0;
1551 		qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1552 		break;
1553 
1554 	/* case MBA_DCBX_COMPLETE: */
1555 	case MBA_POINT_TO_POINT:	/* Point-to-Point */
1556 		ha->flags.lip_ae = 0;
1557 
1558 		if (IS_QLA2100(ha))
1559 			break;
1560 
1561 		if (IS_CNA_CAPABLE(ha)) {
1562 			ql_dbg(ql_dbg_async, vha, 0x500d,
1563 			    "DCBX Completed -- %04x %04x %04x.\n",
1564 			    mb[1], mb[2], mb[3]);
1565 			if (ha->notify_dcbx_comp && !vha->vp_idx)
1566 				complete(&ha->dcbx_comp);
1567 
1568 		} else
1569 			ql_dbg(ql_dbg_async, vha, 0x500e,
1570 			    "Asynchronous P2P MODE received.\n");
1571 
1572 		/*
1573 		 * Until there's a transition from loop down to loop up, treat
1574 		 * this as loop down only.
1575 		 */
1576 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1577 			atomic_set(&vha->loop_state, LOOP_DOWN);
1578 			if (!atomic_read(&vha->loop_down_timer))
1579 				atomic_set(&vha->loop_down_timer,
1580 				    LOOP_DOWN_TIME);
1581 			if (!N2N_TOPO(ha))
1582 				qla2x00_mark_all_devices_lost(vha);
1583 		}
1584 
1585 		if (vha->vp_idx) {
1586 			atomic_set(&vha->vp_state, VP_FAILED);
1587 			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1588 		}
1589 
1590 		if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1591 			set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1592 
1593 		set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1594 		set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1595 
1596 		vha->flags.management_server_logged_in = 0;
1597 		break;
1598 
1599 	case MBA_CHG_IN_CONNECTION:	/* Change in connection mode */
1600 		if (IS_QLA2100(ha))
1601 			break;
1602 
1603 		ql_dbg(ql_dbg_async, vha, 0x500f,
1604 		    "Configuration change detected: value=%x.\n", mb[1]);
1605 
1606 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1607 			atomic_set(&vha->loop_state, LOOP_DOWN);
1608 			if (!atomic_read(&vha->loop_down_timer))
1609 				atomic_set(&vha->loop_down_timer,
1610 				    LOOP_DOWN_TIME);
1611 			qla2x00_mark_all_devices_lost(vha);
1612 		}
1613 
1614 		if (vha->vp_idx) {
1615 			atomic_set(&vha->vp_state, VP_FAILED);
1616 			fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1617 		}
1618 
1619 		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1620 		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1621 		break;
1622 
1623 	case MBA_PORT_UPDATE:		/* Port database update */
1624 		/*
1625 		 * Handle only global and vn-port update events
1626 		 *
1627 		 * Relevant inputs:
1628 		 * mb[1] = N_Port handle of changed port
1629 		 * OR 0xffff for global event
1630 		 * mb[2] = New login state
1631 		 * 7 = Port logged out
1632 		 * mb[3] = LSB is vp_idx, 0xff = all vps
1633 		 *
1634 		 * Skip processing if:
1635 		 *       Event is global, vp_idx is NOT all vps,
1636 		 *           vp_idx does not match
1637 		 *       Event is not global, vp_idx does not match
1638 		 */
1639 		if (IS_QLA2XXX_MIDTYPE(ha) &&
1640 		    ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1641 			(mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1642 			break;
1643 
1644 		if (mb[2] == 0x7) {
1645 			ql_dbg(ql_dbg_async, vha, 0x5010,
1646 			    "Port %s %04x %04x %04x.\n",
1647 			    mb[1] == 0xffff ? "unavailable" : "logout",
1648 			    mb[1], mb[2], mb[3]);
1649 
1650 			if (mb[1] == 0xffff)
1651 				goto global_port_update;
1652 
1653 			if (mb[1] == NPH_SNS_LID(ha)) {
1654 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1655 				set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1656 				break;
1657 			}
1658 
1659 			/* use handle_cnt for loop id/nport handle */
1660 			if (IS_FWI2_CAPABLE(ha))
1661 				handle_cnt = NPH_SNS;
1662 			else
1663 				handle_cnt = SIMPLE_NAME_SERVER;
1664 			if (mb[1] == handle_cnt) {
1665 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1666 				set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1667 				break;
1668 			}
1669 
1670 			/* Port logout */
1671 			fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1672 			if (!fcport)
1673 				break;
1674 			if (atomic_read(&fcport->state) != FCS_ONLINE)
1675 				break;
1676 			ql_dbg(ql_dbg_async, vha, 0x508a,
1677 			    "Marking port lost loopid=%04x portid=%06x.\n",
1678 			    fcport->loop_id, fcport->d_id.b24);
1679 			if (qla_ini_mode_enabled(vha)) {
1680 				fcport->logout_on_delete = 0;
1681 				qlt_schedule_sess_for_deletion(fcport);
1682 			}
1683 			break;
1684 
1685 global_port_update:
1686 			if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1687 				atomic_set(&vha->loop_state, LOOP_DOWN);
1688 				atomic_set(&vha->loop_down_timer,
1689 				    LOOP_DOWN_TIME);
1690 				vha->device_flags |= DFLG_NO_CABLE;
1691 				qla2x00_mark_all_devices_lost(vha);
1692 			}
1693 
1694 			if (vha->vp_idx) {
1695 				atomic_set(&vha->vp_state, VP_FAILED);
1696 				fc_vport_set_state(vha->fc_vport,
1697 				    FC_VPORT_FAILED);
1698 				qla2x00_mark_all_devices_lost(vha);
1699 			}
1700 
1701 			vha->flags.management_server_logged_in = 0;
1702 			ha->link_data_rate = PORT_SPEED_UNKNOWN;
1703 			break;
1704 		}
1705 
1706 		/*
1707 		 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1708 		 * event etc. earlier indicating loop is down) then process
1709 		 * it.  Otherwise ignore it and Wait for RSCN to come in.
1710 		 */
1711 		atomic_set(&vha->loop_down_timer, 0);
1712 		if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1713 			!ha->flags.n2n_ae  &&
1714 		    atomic_read(&vha->loop_state) != LOOP_DEAD) {
1715 			ql_dbg(ql_dbg_async, vha, 0x5011,
1716 			    "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1717 			    mb[1], mb[2], mb[3]);
1718 			break;
1719 		}
1720 
1721 		ql_dbg(ql_dbg_async, vha, 0x5012,
1722 		    "Port database changed %04x %04x %04x.\n",
1723 		    mb[1], mb[2], mb[3]);
1724 
1725 		/*
1726 		 * Mark all devices as missing so we will login again.
1727 		 */
1728 		atomic_set(&vha->loop_state, LOOP_UP);
1729 		vha->scan.scan_retry = 0;
1730 
1731 		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1732 		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1733 		set_bit(VP_CONFIG_OK, &vha->vp_flags);
1734 		break;
1735 
1736 	case MBA_RSCN_UPDATE:		/* State Change Registration */
1737 		/* Check if the Vport has issued a SCR */
1738 		if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1739 			break;
1740 		/* Only handle SCNs for our Vport index. */
1741 		if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1742 			break;
1743 
1744 		ql_log(ql_log_warn, vha, 0x5013,
1745 		       "RSCN database changed -- %04x %04x %04x.\n",
1746 		       mb[1], mb[2], mb[3]);
1747 
1748 		rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1749 		host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1750 				| vha->d_id.b.al_pa;
1751 		if (rscn_entry == host_pid) {
1752 			ql_dbg(ql_dbg_async, vha, 0x5014,
1753 			    "Ignoring RSCN update to local host "
1754 			    "port ID (%06x).\n", host_pid);
1755 			break;
1756 		}
1757 
1758 		/* Ignore reserved bits from RSCN-payload. */
1759 		rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1760 
1761 		/* Skip RSCNs for virtual ports on the same physical port */
1762 		if (qla2x00_is_a_vp_did(vha, rscn_entry))
1763 			break;
1764 
1765 		atomic_set(&vha->loop_down_timer, 0);
1766 		vha->flags.management_server_logged_in = 0;
1767 		{
1768 			struct event_arg ea;
1769 
1770 			memset(&ea, 0, sizeof(ea));
1771 			ea.id.b24 = rscn_entry;
1772 			ea.id.b.rsvd_1 = rscn_entry >> 24;
1773 			qla2x00_handle_rscn(vha, &ea);
1774 			qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1775 		}
1776 		break;
1777 	case MBA_CONGN_NOTI_RECV:
1778 		if (!ha->flags.scm_enabled ||
1779 		    mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1780 			break;
1781 
1782 		if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1783 			ql_dbg(ql_dbg_async, vha, 0x509b,
1784 			       "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1785 		} else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1786 			ql_log(ql_log_warn, vha, 0x509b,
1787 			       "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1788 		}
1789 		break;
1790 	/* case MBA_RIO_RESPONSE: */
1791 	case MBA_ZIO_RESPONSE:
1792 		ql_dbg(ql_dbg_async, vha, 0x5015,
1793 		    "[R|Z]IO update completion.\n");
1794 
1795 		if (IS_FWI2_CAPABLE(ha))
1796 			qla24xx_process_response_queue(vha, rsp);
1797 		else
1798 			qla2x00_process_response_queue(rsp);
1799 		break;
1800 
1801 	case MBA_DISCARD_RND_FRAME:
1802 		ql_dbg(ql_dbg_async, vha, 0x5016,
1803 		    "Discard RND Frame -- %04x %04x %04x.\n",
1804 		    mb[1], mb[2], mb[3]);
1805 		vha->interface_err_cnt++;
1806 		break;
1807 
1808 	case MBA_TRACE_NOTIFICATION:
1809 		ql_dbg(ql_dbg_async, vha, 0x5017,
1810 		    "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1811 		break;
1812 
1813 	case MBA_ISP84XX_ALERT:
1814 		ql_dbg(ql_dbg_async, vha, 0x5018,
1815 		    "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1816 		    mb[1], mb[2], mb[3]);
1817 
1818 		spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1819 		switch (mb[1]) {
1820 		case A84_PANIC_RECOVERY:
1821 			ql_log(ql_log_info, vha, 0x5019,
1822 			    "Alert 84XX: panic recovery %04x %04x.\n",
1823 			    mb[2], mb[3]);
1824 			break;
1825 		case A84_OP_LOGIN_COMPLETE:
1826 			ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1827 			ql_log(ql_log_info, vha, 0x501a,
1828 			    "Alert 84XX: firmware version %x.\n",
1829 			    ha->cs84xx->op_fw_version);
1830 			break;
1831 		case A84_DIAG_LOGIN_COMPLETE:
1832 			ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1833 			ql_log(ql_log_info, vha, 0x501b,
1834 			    "Alert 84XX: diagnostic firmware version %x.\n",
1835 			    ha->cs84xx->diag_fw_version);
1836 			break;
1837 		case A84_GOLD_LOGIN_COMPLETE:
1838 			ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1839 			ha->cs84xx->fw_update = 1;
1840 			ql_log(ql_log_info, vha, 0x501c,
1841 			    "Alert 84XX: gold firmware version %x.\n",
1842 			    ha->cs84xx->gold_fw_version);
1843 			break;
1844 		default:
1845 			ql_log(ql_log_warn, vha, 0x501d,
1846 			    "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1847 			    mb[1], mb[2], mb[3]);
1848 		}
1849 		spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1850 		break;
1851 	case MBA_DCBX_START:
1852 		ql_dbg(ql_dbg_async, vha, 0x501e,
1853 		    "DCBX Started -- %04x %04x %04x.\n",
1854 		    mb[1], mb[2], mb[3]);
1855 		break;
1856 	case MBA_DCBX_PARAM_UPDATE:
1857 		ql_dbg(ql_dbg_async, vha, 0x501f,
1858 		    "DCBX Parameters Updated -- %04x %04x %04x.\n",
1859 		    mb[1], mb[2], mb[3]);
1860 		break;
1861 	case MBA_FCF_CONF_ERR:
1862 		ql_dbg(ql_dbg_async, vha, 0x5020,
1863 		    "FCF Configuration Error -- %04x %04x %04x.\n",
1864 		    mb[1], mb[2], mb[3]);
1865 		break;
1866 	case MBA_IDC_NOTIFY:
1867 		if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1868 			mb[4] = rd_reg_word(&reg24->mailbox4);
1869 			if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1870 			    (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1871 			    (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1872 				set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1873 				/*
1874 				 * Extend loop down timer since port is active.
1875 				 */
1876 				if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1877 					atomic_set(&vha->loop_down_timer,
1878 					    LOOP_DOWN_TIME);
1879 				qla2xxx_wake_dpc(vha);
1880 			}
1881 		}
1882 		fallthrough;
1883 	case MBA_IDC_COMPLETE:
1884 		if (ha->notify_lb_portup_comp && !vha->vp_idx)
1885 			complete(&ha->lb_portup_comp);
1886 		fallthrough;
1887 	case MBA_IDC_TIME_EXT:
1888 		if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1889 		    IS_QLA8044(ha))
1890 			qla81xx_idc_event(vha, mb[0], mb[1]);
1891 		break;
1892 
1893 	case MBA_IDC_AEN:
1894 		if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1895 			vha->hw_err_cnt++;
1896 			qla27xx_handle_8200_aen(vha, mb);
1897 		} else if (IS_QLA83XX(ha)) {
1898 			mb[4] = rd_reg_word(&reg24->mailbox4);
1899 			mb[5] = rd_reg_word(&reg24->mailbox5);
1900 			mb[6] = rd_reg_word(&reg24->mailbox6);
1901 			mb[7] = rd_reg_word(&reg24->mailbox7);
1902 			qla83xx_handle_8200_aen(vha, mb);
1903 		} else {
1904 			ql_dbg(ql_dbg_async, vha, 0x5052,
1905 			    "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1906 			    mb[0], mb[1], mb[2], mb[3]);
1907 		}
1908 		break;
1909 
1910 	case MBA_DPORT_DIAGNOSTICS:
1911 		if ((mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_NOERR ||
1912 		    (mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_ERR)
1913 			vha->dport_status &= ~DPORT_DIAG_IN_PROGRESS;
1914 		ql_dbg(ql_dbg_async, vha, 0x5052,
1915 		    "D-Port Diagnostics: %04x %04x %04x %04x\n",
1916 		    mb[0], mb[1], mb[2], mb[3]);
1917 		memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1918 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1919 			static char *results[] = {
1920 			    "start", "done(pass)", "done(error)", "undefined" };
1921 			static char *types[] = {
1922 			    "none", "dynamic", "static", "other" };
1923 			uint result = mb[1] >> 0 & 0x3;
1924 			uint type = mb[1] >> 6 & 0x3;
1925 			uint sw = mb[1] >> 15 & 0x1;
1926 			ql_dbg(ql_dbg_async, vha, 0x5052,
1927 			    "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1928 			    results[result], types[type], sw);
1929 			if (result == 2) {
1930 				static char *reasons[] = {
1931 				    "reserved", "unexpected reject",
1932 				    "unexpected phase", "retry exceeded",
1933 				    "timed out", "not supported",
1934 				    "user stopped" };
1935 				uint reason = mb[2] >> 0 & 0xf;
1936 				uint phase = mb[2] >> 12 & 0xf;
1937 				ql_dbg(ql_dbg_async, vha, 0x5052,
1938 				    "D-Port Diagnostics: reason=%s phase=%u \n",
1939 				    reason < 7 ? reasons[reason] : "other",
1940 				    phase >> 1);
1941 			}
1942 		}
1943 		break;
1944 
1945 	case MBA_TEMPERATURE_ALERT:
1946 		if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
1947 			display_Laser_info(vha, mb[1], mb[2], mb[3]);
1948 		ql_dbg(ql_dbg_async, vha, 0x505e,
1949 		    "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1950 		break;
1951 
1952 	case MBA_TRANS_INSERT:
1953 		ql_dbg(ql_dbg_async, vha, 0x5091,
1954 		    "Transceiver Insertion: %04x\n", mb[1]);
1955 		set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1956 		break;
1957 
1958 	case MBA_TRANS_REMOVE:
1959 		ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1960 		break;
1961 
1962 	default:
1963 		ql_dbg(ql_dbg_async, vha, 0x5057,
1964 		    "Unknown AEN:%04x %04x %04x %04x\n",
1965 		    mb[0], mb[1], mb[2], mb[3]);
1966 	}
1967 
1968 	qlt_async_event(mb[0], vha, mb);
1969 
1970 	if (!vha->vp_idx && ha->num_vhosts)
1971 		qla2x00_alert_all_vps(rsp, mb);
1972 }
1973 
1974 /**
1975  * qla2x00_process_completed_request() - Process a Fast Post response.
1976  * @vha: SCSI driver HA context
1977  * @req: request queue
1978  * @index: SRB index
1979  */
1980 void
qla2x00_process_completed_request(struct scsi_qla_host * vha,struct req_que * req,uint32_t index)1981 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1982 				  struct req_que *req, uint32_t index)
1983 {
1984 	srb_t *sp;
1985 	struct qla_hw_data *ha = vha->hw;
1986 
1987 	/* Validate handle. */
1988 	if (index >= req->num_outstanding_cmds) {
1989 		ql_log(ql_log_warn, vha, 0x3014,
1990 		    "Invalid SCSI command index (%x).\n", index);
1991 
1992 		if (IS_P3P_TYPE(ha))
1993 			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1994 		else
1995 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1996 		return;
1997 	}
1998 
1999 	sp = req->outstanding_cmds[index];
2000 	if (sp) {
2001 		/* Free outstanding command slot. */
2002 		req->outstanding_cmds[index] = NULL;
2003 
2004 		/* Save ISP completion status */
2005 		sp->done(sp, DID_OK << 16);
2006 	} else {
2007 		ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
2008 
2009 		if (IS_P3P_TYPE(ha))
2010 			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2011 		else
2012 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2013 	}
2014 }
2015 
2016 static srb_t *
qla_get_sp_from_handle(scsi_qla_host_t * vha,const char * func,struct req_que * req,void * iocb,u16 * ret_index)2017 qla_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
2018 		       struct req_que *req, void *iocb, u16 *ret_index)
2019 {
2020 	struct qla_hw_data *ha = vha->hw;
2021 	sts_entry_t *pkt = iocb;
2022 	srb_t *sp;
2023 	uint16_t index;
2024 
2025 	if (pkt->handle == QLA_SKIP_HANDLE)
2026 		return NULL;
2027 
2028 	index = LSW(pkt->handle);
2029 	if (index >= req->num_outstanding_cmds) {
2030 		ql_log(ql_log_warn, vha, 0x5031,
2031 			   "%s: Invalid command index (%x) type %8ph.\n",
2032 			   func, index, iocb);
2033 		if (IS_P3P_TYPE(ha))
2034 			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2035 		else
2036 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2037 		return NULL;
2038 	}
2039 	sp = req->outstanding_cmds[index];
2040 	if (!sp) {
2041 		ql_log(ql_log_warn, vha, 0x5032,
2042 			"%s: Invalid completion handle (%x) -- timed-out.\n",
2043 			func, index);
2044 		return NULL;
2045 	}
2046 	if (sp->handle != index) {
2047 		ql_log(ql_log_warn, vha, 0x5033,
2048 			"%s: SRB handle (%x) mismatch %x.\n", func,
2049 			sp->handle, index);
2050 		return NULL;
2051 	}
2052 
2053 	*ret_index = index;
2054 	qla_put_fw_resources(sp->qpair, &sp->iores);
2055 	return sp;
2056 }
2057 
2058 srb_t *
qla2x00_get_sp_from_handle(scsi_qla_host_t * vha,const char * func,struct req_que * req,void * iocb)2059 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
2060 			   struct req_que *req, void *iocb)
2061 {
2062 	uint16_t index;
2063 	srb_t *sp;
2064 
2065 	sp = qla_get_sp_from_handle(vha, func, req, iocb, &index);
2066 	if (sp)
2067 		req->outstanding_cmds[index] = NULL;
2068 
2069 	return sp;
2070 }
2071 
2072 static void
qla2x00_mbx_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct mbx_entry * mbx)2073 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2074     struct mbx_entry *mbx)
2075 {
2076 	const char func[] = "MBX-IOCB";
2077 	const char *type;
2078 	fc_port_t *fcport;
2079 	srb_t *sp;
2080 	struct srb_iocb *lio;
2081 	uint16_t *data;
2082 	uint16_t status;
2083 
2084 	sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
2085 	if (!sp)
2086 		return;
2087 
2088 	lio = &sp->u.iocb_cmd;
2089 	type = sp->name;
2090 	fcport = sp->fcport;
2091 	data = lio->u.logio.data;
2092 
2093 	data[0] = MBS_COMMAND_ERROR;
2094 	data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2095 	    QLA_LOGIO_LOGIN_RETRIED : 0;
2096 	if (mbx->entry_status) {
2097 		ql_dbg(ql_dbg_async, vha, 0x5043,
2098 		    "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
2099 		    "entry-status=%x status=%x state-flag=%x "
2100 		    "status-flags=%x.\n", type, sp->handle,
2101 		    fcport->d_id.b.domain, fcport->d_id.b.area,
2102 		    fcport->d_id.b.al_pa, mbx->entry_status,
2103 		    le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
2104 		    le16_to_cpu(mbx->status_flags));
2105 
2106 		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
2107 		    mbx, sizeof(*mbx));
2108 
2109 		goto logio_done;
2110 	}
2111 
2112 	status = le16_to_cpu(mbx->status);
2113 	if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
2114 	    le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
2115 		status = 0;
2116 	if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
2117 		ql_dbg(ql_dbg_async, vha, 0x5045,
2118 		    "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
2119 		    type, sp->handle, fcport->d_id.b.domain,
2120 		    fcport->d_id.b.area, fcport->d_id.b.al_pa,
2121 		    le16_to_cpu(mbx->mb1));
2122 
2123 		data[0] = MBS_COMMAND_COMPLETE;
2124 		if (sp->type == SRB_LOGIN_CMD) {
2125 			fcport->port_type = FCT_TARGET;
2126 			if (le16_to_cpu(mbx->mb1) & BIT_0)
2127 				fcport->port_type = FCT_INITIATOR;
2128 			else if (le16_to_cpu(mbx->mb1) & BIT_1)
2129 				fcport->flags |= FCF_FCP2_DEVICE;
2130 		}
2131 		goto logio_done;
2132 	}
2133 
2134 	data[0] = le16_to_cpu(mbx->mb0);
2135 	switch (data[0]) {
2136 	case MBS_PORT_ID_USED:
2137 		data[1] = le16_to_cpu(mbx->mb1);
2138 		break;
2139 	case MBS_LOOP_ID_USED:
2140 		break;
2141 	default:
2142 		data[0] = MBS_COMMAND_ERROR;
2143 		break;
2144 	}
2145 
2146 	ql_log(ql_log_warn, vha, 0x5046,
2147 	    "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
2148 	    "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
2149 	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
2150 	    status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
2151 	    le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
2152 	    le16_to_cpu(mbx->mb7));
2153 
2154 logio_done:
2155 	sp->done(sp, 0);
2156 }
2157 
2158 static void
qla24xx_mbx_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct mbx_24xx_entry * pkt)2159 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2160     struct mbx_24xx_entry *pkt)
2161 {
2162 	const char func[] = "MBX-IOCB2";
2163 	struct qla_hw_data *ha = vha->hw;
2164 	srb_t *sp;
2165 	struct srb_iocb *si;
2166 	u16 sz, i;
2167 	int res;
2168 
2169 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2170 	if (!sp)
2171 		return;
2172 
2173 	if (sp->type == SRB_SCSI_CMD ||
2174 	    sp->type == SRB_NVME_CMD ||
2175 	    sp->type == SRB_TM_CMD) {
2176 		ql_log(ql_log_warn, vha, 0x509d,
2177 			"Inconsistent event entry type %d\n", sp->type);
2178 		if (IS_P3P_TYPE(ha))
2179 			set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2180 		else
2181 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2182 		return;
2183 	}
2184 
2185 	si = &sp->u.iocb_cmd;
2186 	sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
2187 
2188 	for (i = 0; i < sz; i++)
2189 		si->u.mbx.in_mb[i] = pkt->mb[i];
2190 
2191 	res = (si->u.mbx.in_mb[0] & MBS_MASK);
2192 
2193 	sp->done(sp, res);
2194 }
2195 
2196 static void
qla24xxx_nack_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct nack_to_isp * pkt)2197 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2198     struct nack_to_isp *pkt)
2199 {
2200 	const char func[] = "nack";
2201 	srb_t *sp;
2202 	int res = 0;
2203 
2204 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2205 	if (!sp)
2206 		return;
2207 
2208 	if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
2209 		res = QLA_FUNCTION_FAILED;
2210 
2211 	sp->done(sp, res);
2212 }
2213 
2214 static void
qla2x00_ct_entry(scsi_qla_host_t * vha,struct req_que * req,sts_entry_t * pkt,int iocb_type)2215 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
2216     sts_entry_t *pkt, int iocb_type)
2217 {
2218 	const char func[] = "CT_IOCB";
2219 	const char *type;
2220 	srb_t *sp;
2221 	struct bsg_job *bsg_job;
2222 	struct fc_bsg_reply *bsg_reply;
2223 	uint16_t comp_status;
2224 	int res = 0;
2225 
2226 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2227 	if (!sp)
2228 		return;
2229 
2230 	switch (sp->type) {
2231 	case SRB_CT_CMD:
2232 	    bsg_job = sp->u.bsg_job;
2233 	    bsg_reply = bsg_job->reply;
2234 
2235 	    type = "ct pass-through";
2236 
2237 	    comp_status = le16_to_cpu(pkt->comp_status);
2238 
2239 	    /*
2240 	     * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2241 	     * fc payload  to the caller
2242 	     */
2243 	    bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2244 	    bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2245 
2246 	    if (comp_status != CS_COMPLETE) {
2247 		    if (comp_status == CS_DATA_UNDERRUN) {
2248 			    res = DID_OK << 16;
2249 			    bsg_reply->reply_payload_rcv_len =
2250 				le16_to_cpu(pkt->rsp_info_len);
2251 
2252 			    ql_log(ql_log_warn, vha, 0x5048,
2253 				"CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
2254 				type, comp_status,
2255 				bsg_reply->reply_payload_rcv_len);
2256 		    } else {
2257 			    ql_log(ql_log_warn, vha, 0x5049,
2258 				"CT pass-through-%s error comp_status=0x%x.\n",
2259 				type, comp_status);
2260 			    res = DID_ERROR << 16;
2261 			    bsg_reply->reply_payload_rcv_len = 0;
2262 		    }
2263 		    ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
2264 			pkt, sizeof(*pkt));
2265 	    } else {
2266 		    res = DID_OK << 16;
2267 		    bsg_reply->reply_payload_rcv_len =
2268 			bsg_job->reply_payload.payload_len;
2269 		    bsg_job->reply_len = 0;
2270 	    }
2271 	    break;
2272 	case SRB_CT_PTHRU_CMD:
2273 	    /*
2274 	     * borrowing sts_entry_24xx.comp_status.
2275 	     * same location as ct_entry_24xx.comp_status
2276 	     */
2277 	     res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
2278 		 (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2279 		 sp->name);
2280 	     break;
2281 	}
2282 
2283 	sp->done(sp, res);
2284 }
2285 
2286 static void
qla24xx_els_ct_entry(scsi_qla_host_t * v,struct req_que * req,struct sts_entry_24xx * pkt,int iocb_type)2287 qla24xx_els_ct_entry(scsi_qla_host_t *v, struct req_que *req,
2288     struct sts_entry_24xx *pkt, int iocb_type)
2289 {
2290 	struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
2291 	const char func[] = "ELS_CT_IOCB";
2292 	const char *type;
2293 	srb_t *sp;
2294 	struct bsg_job *bsg_job;
2295 	struct fc_bsg_reply *bsg_reply;
2296 	uint16_t comp_status;
2297 	uint32_t fw_status[3];
2298 	int res, logit = 1;
2299 	struct srb_iocb *els;
2300 	uint n;
2301 	scsi_qla_host_t *vha;
2302 	struct els_sts_entry_24xx *e = (struct els_sts_entry_24xx *)pkt;
2303 
2304 	sp = qla2x00_get_sp_from_handle(v, func, req, pkt);
2305 	if (!sp)
2306 		return;
2307 	bsg_job = sp->u.bsg_job;
2308 	vha = sp->vha;
2309 
2310 	type = NULL;
2311 
2312 	comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2313 	fw_status[1] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_1);
2314 	fw_status[2] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_2);
2315 
2316 	switch (sp->type) {
2317 	case SRB_ELS_CMD_RPT:
2318 	case SRB_ELS_CMD_HST:
2319 		type = "rpt hst";
2320 		break;
2321 	case SRB_ELS_CMD_HST_NOLOGIN:
2322 		type = "els";
2323 		{
2324 			struct els_entry_24xx *els = (void *)pkt;
2325 			struct qla_bsg_auth_els_request *p =
2326 				(struct qla_bsg_auth_els_request *)bsg_job->request;
2327 
2328 			ql_dbg(ql_dbg_user, vha, 0x700f,
2329 			     "%s %s. portid=%02x%02x%02x status %x xchg %x bsg ptr %p\n",
2330 			     __func__, sc_to_str(p->e.sub_cmd),
2331 			     e->d_id[2], e->d_id[1], e->d_id[0],
2332 			     comp_status, p->e.extra_rx_xchg_address, bsg_job);
2333 
2334 			if (!(le16_to_cpu(els->control_flags) & ECF_PAYLOAD_DESCR_MASK)) {
2335 				if (sp->remap.remapped) {
2336 					n = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2337 						bsg_job->reply_payload.sg_cnt,
2338 						sp->remap.rsp.buf,
2339 						sp->remap.rsp.len);
2340 					ql_dbg(ql_dbg_user + ql_dbg_verbose, vha, 0x700e,
2341 					   "%s: SG copied %x of %x\n",
2342 					   __func__, n, sp->remap.rsp.len);
2343 				} else {
2344 					ql_dbg(ql_dbg_user, vha, 0x700f,
2345 					   "%s: NOT REMAPPED (error)...!!!\n",
2346 					   __func__);
2347 				}
2348 			}
2349 		}
2350 		break;
2351 	case SRB_CT_CMD:
2352 		type = "ct pass-through";
2353 		break;
2354 	case SRB_ELS_DCMD:
2355 		type = "Driver ELS logo";
2356 		if (iocb_type != ELS_IOCB_TYPE) {
2357 			ql_dbg(ql_dbg_user, vha, 0x5047,
2358 			    "Completing %s: (%p) type=%d.\n",
2359 			    type, sp, sp->type);
2360 			sp->done(sp, 0);
2361 			return;
2362 		}
2363 		break;
2364 	case SRB_CT_PTHRU_CMD:
2365 		/* borrowing sts_entry_24xx.comp_status.
2366 		   same location as ct_entry_24xx.comp_status
2367 		 */
2368 		res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2369 			(struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2370 			sp->name);
2371 		sp->done(sp, res);
2372 		return;
2373 	default:
2374 		ql_dbg(ql_dbg_user, vha, 0x503e,
2375 		    "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2376 		return;
2377 	}
2378 
2379 	if (iocb_type == ELS_IOCB_TYPE) {
2380 		els = &sp->u.iocb_cmd;
2381 		els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2382 		els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2383 		els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2384 		els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2385 		if (comp_status == CS_COMPLETE) {
2386 			res =  DID_OK << 16;
2387 		} else {
2388 			if (comp_status == CS_DATA_UNDERRUN) {
2389 				res =  DID_OK << 16;
2390 				els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2391 					ese->total_byte_count));
2392 
2393 				if (sp->remap.remapped &&
2394 				    ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_ACC) {
2395 					ql_dbg(ql_dbg_user, vha, 0x503f,
2396 					    "%s IOCB Done LS_ACC %02x%02x%02x -> %02x%02x%02x",
2397 					    __func__, e->s_id[0], e->s_id[2], e->s_id[1],
2398 					    e->d_id[2], e->d_id[1], e->d_id[0]);
2399 					logit = 0;
2400 				}
2401 
2402 			} else if (comp_status == CS_PORT_LOGGED_OUT) {
2403 				ql_dbg(ql_dbg_disc, vha, 0x911e,
2404 				       "%s %d schedule session deletion\n",
2405 				       __func__, __LINE__);
2406 
2407 				els->u.els_plogi.len = 0;
2408 				res = DID_IMM_RETRY << 16;
2409 				qlt_schedule_sess_for_deletion(sp->fcport);
2410 			} else {
2411 				els->u.els_plogi.len = 0;
2412 				res = DID_ERROR << 16;
2413 			}
2414 
2415 			if (sp->remap.remapped &&
2416 			    ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_RJT) {
2417 				if (logit) {
2418 					ql_dbg(ql_dbg_user, vha, 0x503f,
2419 					    "%s IOCB Done LS_RJT hdl=%x comp_status=0x%x\n",
2420 					    type, sp->handle, comp_status);
2421 
2422 					ql_dbg(ql_dbg_user, vha, 0x503f,
2423 					    "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2424 					    fw_status[1], fw_status[2],
2425 					    le32_to_cpu(((struct els_sts_entry_24xx *)
2426 						pkt)->total_byte_count),
2427 					    e->s_id[0], e->s_id[2], e->s_id[1],
2428 					    e->d_id[2], e->d_id[1], e->d_id[0]);
2429 				}
2430 				if (sp->fcport && sp->fcport->flags & FCF_FCSP_DEVICE &&
2431 				    sp->type == SRB_ELS_CMD_HST_NOLOGIN) {
2432 					ql_dbg(ql_dbg_edif, vha, 0x911e,
2433 					    "%s rcv reject. Sched delete\n", __func__);
2434 					qlt_schedule_sess_for_deletion(sp->fcport);
2435 				}
2436 			} else if (logit) {
2437 				ql_log(ql_log_info, vha, 0x503f,
2438 				    "%s IOCB Done hdl=%x comp_status=0x%x\n",
2439 				    type, sp->handle, comp_status);
2440 				ql_log(ql_log_info, vha, 0x503f,
2441 				    "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2442 				    fw_status[1], fw_status[2],
2443 				    le32_to_cpu(((struct els_sts_entry_24xx *)
2444 				    pkt)->total_byte_count),
2445 				    e->s_id[0], e->s_id[2], e->s_id[1],
2446 				    e->d_id[2], e->d_id[1], e->d_id[0]);
2447 			}
2448 		}
2449 		goto els_ct_done;
2450 	}
2451 
2452 	/* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2453 	 * fc payload  to the caller
2454 	 */
2455 	bsg_job = sp->u.bsg_job;
2456 	bsg_reply = bsg_job->reply;
2457 	bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2458 	bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2459 
2460 	if (comp_status != CS_COMPLETE) {
2461 		if (comp_status == CS_DATA_UNDERRUN) {
2462 			res = DID_OK << 16;
2463 			bsg_reply->reply_payload_rcv_len =
2464 				le32_to_cpu(ese->total_byte_count);
2465 
2466 			ql_dbg(ql_dbg_user, vha, 0x503f,
2467 			    "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2468 			    "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2469 			    type, sp->handle, comp_status, fw_status[1], fw_status[2],
2470 			    le32_to_cpu(ese->total_byte_count));
2471 		} else {
2472 			ql_dbg(ql_dbg_user, vha, 0x5040,
2473 			    "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2474 			    "error subcode 1=0x%x error subcode 2=0x%x.\n",
2475 			    type, sp->handle, comp_status,
2476 			    le32_to_cpu(ese->error_subcode_1),
2477 			    le32_to_cpu(ese->error_subcode_2));
2478 			res = DID_ERROR << 16;
2479 			bsg_reply->reply_payload_rcv_len = 0;
2480 		}
2481 		memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2482 		       fw_status, sizeof(fw_status));
2483 		ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2484 		    pkt, sizeof(*pkt));
2485 	}
2486 	else {
2487 		res =  DID_OK << 16;
2488 		bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2489 		bsg_job->reply_len = 0;
2490 	}
2491 els_ct_done:
2492 
2493 	sp->done(sp, res);
2494 }
2495 
2496 static void
qla24xx_logio_entry(scsi_qla_host_t * vha,struct req_que * req,struct logio_entry_24xx * logio)2497 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2498     struct logio_entry_24xx *logio)
2499 {
2500 	const char func[] = "LOGIO-IOCB";
2501 	const char *type;
2502 	fc_port_t *fcport;
2503 	srb_t *sp;
2504 	struct srb_iocb *lio;
2505 	uint16_t *data;
2506 	uint32_t iop[2];
2507 	int logit = 1;
2508 
2509 	sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2510 	if (!sp)
2511 		return;
2512 
2513 	lio = &sp->u.iocb_cmd;
2514 	type = sp->name;
2515 	fcport = sp->fcport;
2516 	data = lio->u.logio.data;
2517 
2518 	data[0] = MBS_COMMAND_ERROR;
2519 	data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2520 		QLA_LOGIO_LOGIN_RETRIED : 0;
2521 	if (logio->entry_status) {
2522 		ql_log(ql_log_warn, fcport->vha, 0x5034,
2523 		    "Async-%s error entry - %8phC hdl=%x"
2524 		    "portid=%02x%02x%02x entry-status=%x.\n",
2525 		    type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2526 		    fcport->d_id.b.area, fcport->d_id.b.al_pa,
2527 		    logio->entry_status);
2528 		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2529 		    logio, sizeof(*logio));
2530 
2531 		goto logio_done;
2532 	}
2533 
2534 	if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2535 		ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2536 		    "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2537 		    type, sp->handle, fcport->d_id.b24, fcport->port_name,
2538 		    le32_to_cpu(logio->io_parameter[0]));
2539 
2540 		vha->hw->exch_starvation = 0;
2541 		data[0] = MBS_COMMAND_COMPLETE;
2542 
2543 		if (sp->type == SRB_PRLI_CMD) {
2544 			lio->u.logio.iop[0] =
2545 			    le32_to_cpu(logio->io_parameter[0]);
2546 			lio->u.logio.iop[1] =
2547 			    le32_to_cpu(logio->io_parameter[1]);
2548 			goto logio_done;
2549 		}
2550 
2551 		if (sp->type != SRB_LOGIN_CMD)
2552 			goto logio_done;
2553 
2554 		lio->u.logio.iop[1] = le32_to_cpu(logio->io_parameter[5]);
2555 		if (le32_to_cpu(logio->io_parameter[5]) & LIO_COMM_FEAT_FCSP)
2556 			fcport->flags |= FCF_FCSP_DEVICE;
2557 
2558 		iop[0] = le32_to_cpu(logio->io_parameter[0]);
2559 		if (iop[0] & BIT_4) {
2560 			fcport->port_type = FCT_TARGET;
2561 			if (iop[0] & BIT_8)
2562 				fcport->flags |= FCF_FCP2_DEVICE;
2563 		} else if (iop[0] & BIT_5)
2564 			fcport->port_type = FCT_INITIATOR;
2565 
2566 		if (iop[0] & BIT_7)
2567 			fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2568 
2569 		if (logio->io_parameter[7] || logio->io_parameter[8])
2570 			fcport->supported_classes |= FC_COS_CLASS2;
2571 		if (logio->io_parameter[9] || logio->io_parameter[10])
2572 			fcport->supported_classes |= FC_COS_CLASS3;
2573 
2574 		goto logio_done;
2575 	}
2576 
2577 	iop[0] = le32_to_cpu(logio->io_parameter[0]);
2578 	iop[1] = le32_to_cpu(logio->io_parameter[1]);
2579 	lio->u.logio.iop[0] = iop[0];
2580 	lio->u.logio.iop[1] = iop[1];
2581 	switch (iop[0]) {
2582 	case LSC_SCODE_PORTID_USED:
2583 		data[0] = MBS_PORT_ID_USED;
2584 		data[1] = LSW(iop[1]);
2585 		logit = 0;
2586 		break;
2587 	case LSC_SCODE_NPORT_USED:
2588 		data[0] = MBS_LOOP_ID_USED;
2589 		logit = 0;
2590 		break;
2591 	case LSC_SCODE_CMD_FAILED:
2592 		if (iop[1] == 0x0606) {
2593 			/*
2594 			 * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2595 			 * Target side acked.
2596 			 */
2597 			data[0] = MBS_COMMAND_COMPLETE;
2598 			goto logio_done;
2599 		}
2600 		data[0] = MBS_COMMAND_ERROR;
2601 		break;
2602 	case LSC_SCODE_NOXCB:
2603 		vha->hw->exch_starvation++;
2604 		if (vha->hw->exch_starvation > 5) {
2605 			ql_log(ql_log_warn, vha, 0xd046,
2606 			    "Exchange starvation. Resetting RISC\n");
2607 
2608 			vha->hw->exch_starvation = 0;
2609 
2610 			if (IS_P3P_TYPE(vha->hw))
2611 				set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2612 			else
2613 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2614 			qla2xxx_wake_dpc(vha);
2615 		}
2616 		fallthrough;
2617 	default:
2618 		data[0] = MBS_COMMAND_ERROR;
2619 		break;
2620 	}
2621 
2622 	if (logit)
2623 		ql_log(ql_log_warn, sp->vha, 0x5037, "Async-%s failed: "
2624 		       "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2625 		       type, sp->handle, fcport->d_id.b24, fcport->port_name,
2626 		       le16_to_cpu(logio->comp_status),
2627 		       le32_to_cpu(logio->io_parameter[0]),
2628 		       le32_to_cpu(logio->io_parameter[1]));
2629 	else
2630 		ql_dbg(ql_dbg_disc, sp->vha, 0x5037, "Async-%s failed: "
2631 		       "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2632 		       type, sp->handle, fcport->d_id.b24, fcport->port_name,
2633 		       le16_to_cpu(logio->comp_status),
2634 		       le32_to_cpu(logio->io_parameter[0]),
2635 		       le32_to_cpu(logio->io_parameter[1]));
2636 
2637 logio_done:
2638 	sp->done(sp, 0);
2639 }
2640 
2641 static void
qla24xx_tm_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,void * tsk)2642 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2643 {
2644 	const char func[] = "TMF-IOCB";
2645 	const char *type;
2646 	fc_port_t *fcport;
2647 	srb_t *sp;
2648 	struct srb_iocb *iocb;
2649 	struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2650 	u16 comp_status;
2651 
2652 	sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2653 	if (!sp)
2654 		return;
2655 
2656 	comp_status = le16_to_cpu(sts->comp_status);
2657 	iocb = &sp->u.iocb_cmd;
2658 	type = sp->name;
2659 	fcport = sp->fcport;
2660 	iocb->u.tmf.data = QLA_SUCCESS;
2661 
2662 	if (sts->entry_status) {
2663 		ql_log(ql_log_warn, fcport->vha, 0x5038,
2664 		    "Async-%s error - hdl=%x entry-status(%x).\n",
2665 		    type, sp->handle, sts->entry_status);
2666 		iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2667 	} else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2668 		ql_log(ql_log_warn, fcport->vha, 0x5039,
2669 		    "Async-%s error - hdl=%x completion status(%x).\n",
2670 		    type, sp->handle, comp_status);
2671 		iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2672 	} else if ((le16_to_cpu(sts->scsi_status) &
2673 	    SS_RESPONSE_INFO_LEN_VALID)) {
2674 		host_to_fcp_swap(sts->data, sizeof(sts->data));
2675 		if (le32_to_cpu(sts->rsp_data_len) < 4) {
2676 			ql_log(ql_log_warn, fcport->vha, 0x503b,
2677 			    "Async-%s error - hdl=%x not enough response(%d).\n",
2678 			    type, sp->handle, sts->rsp_data_len);
2679 		} else if (sts->data[3]) {
2680 			ql_log(ql_log_warn, fcport->vha, 0x503c,
2681 			    "Async-%s error - hdl=%x response(%x).\n",
2682 			    type, sp->handle, sts->data[3]);
2683 			iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2684 		}
2685 	}
2686 
2687 	switch (comp_status) {
2688 	case CS_PORT_LOGGED_OUT:
2689 	case CS_PORT_CONFIG_CHG:
2690 	case CS_PORT_BUSY:
2691 	case CS_INCOMPLETE:
2692 	case CS_PORT_UNAVAILABLE:
2693 	case CS_RESET:
2694 		if (atomic_read(&fcport->state) == FCS_ONLINE) {
2695 			ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2696 			       "-Port to be marked lost on fcport=%02x%02x%02x, current port state= %s comp_status %x.\n",
2697 			       fcport->d_id.b.domain, fcport->d_id.b.area,
2698 			       fcport->d_id.b.al_pa,
2699 			       port_state_str[FCS_ONLINE],
2700 			       comp_status);
2701 
2702 			qlt_schedule_sess_for_deletion(fcport);
2703 		}
2704 		break;
2705 
2706 	default:
2707 		break;
2708 	}
2709 
2710 	if (iocb->u.tmf.data != QLA_SUCCESS)
2711 		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2712 		    sts, sizeof(*sts));
2713 
2714 	sp->done(sp, 0);
2715 }
2716 
qla24xx_nvme_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,void * tsk,srb_t * sp)2717 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2718     void *tsk, srb_t *sp)
2719 {
2720 	fc_port_t *fcport;
2721 	struct srb_iocb *iocb;
2722 	struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2723 	uint16_t        state_flags;
2724 	struct nvmefc_fcp_req *fd;
2725 	uint16_t        ret = QLA_SUCCESS;
2726 	__le16		comp_status = sts->comp_status;
2727 	int		logit = 0;
2728 
2729 	iocb = &sp->u.iocb_cmd;
2730 	fcport = sp->fcport;
2731 	iocb->u.nvme.comp_status = comp_status;
2732 	state_flags  = le16_to_cpu(sts->state_flags);
2733 	fd = iocb->u.nvme.desc;
2734 
2735 	if (unlikely(iocb->u.nvme.aen_op))
2736 		atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2737 	else
2738 		sp->qpair->cmd_completion_cnt++;
2739 
2740 	if (unlikely(comp_status != CS_COMPLETE))
2741 		logit = 1;
2742 
2743 	fd->transferred_length = fd->payload_length -
2744 	    le32_to_cpu(sts->residual_len);
2745 
2746 	/*
2747 	 * State flags: Bit 6 and 0.
2748 	 * If 0 is set, we don't care about 6.
2749 	 * both cases resp was dma'd to host buffer
2750 	 * if both are 0, that is good path case.
2751 	 * if six is set and 0 is clear, we need to
2752 	 * copy resp data from status iocb to resp buffer.
2753 	 */
2754 	if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2755 		iocb->u.nvme.rsp_pyld_len = 0;
2756 	} else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2757 			(SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2758 		/* Response already DMA'd to fd->rspaddr. */
2759 		iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2760 	} else if ((state_flags & SF_FCP_RSP_DMA)) {
2761 		/*
2762 		 * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2763 		 * as an error.
2764 		 */
2765 		iocb->u.nvme.rsp_pyld_len = 0;
2766 		fd->transferred_length = 0;
2767 		ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2768 			"Unexpected values in NVMe_RSP IU.\n");
2769 		logit = 1;
2770 	} else if (state_flags & SF_NVME_ERSP) {
2771 		uint32_t *inbuf, *outbuf;
2772 		uint16_t iter;
2773 
2774 		inbuf = (uint32_t *)&sts->nvme_ersp_data;
2775 		outbuf = (uint32_t *)fd->rspaddr;
2776 		iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2777 		if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2778 		    sizeof(struct nvme_fc_ersp_iu))) {
2779 			if (ql_mask_match(ql_dbg_io)) {
2780 				WARN_ONCE(1, "Unexpected response payload length %u.\n",
2781 				    iocb->u.nvme.rsp_pyld_len);
2782 				ql_log(ql_log_warn, fcport->vha, 0x5100,
2783 				    "Unexpected response payload length %u.\n",
2784 				    iocb->u.nvme.rsp_pyld_len);
2785 			}
2786 			iocb->u.nvme.rsp_pyld_len =
2787 				cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2788 		}
2789 		iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2790 		for (; iter; iter--)
2791 			*outbuf++ = swab32(*inbuf++);
2792 	}
2793 
2794 	if (state_flags & SF_NVME_ERSP) {
2795 		struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2796 		u32 tgt_xfer_len;
2797 
2798 		tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2799 		if (fd->transferred_length != tgt_xfer_len) {
2800 			ql_log(ql_log_warn, fcport->vha, 0x3079,
2801 			       "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2802 			       tgt_xfer_len, fd->transferred_length);
2803 			logit = 1;
2804 		} else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2805 			/*
2806 			 * Do not log if this is just an underflow and there
2807 			 * is no data loss.
2808 			 */
2809 			logit = 0;
2810 		}
2811 	}
2812 
2813 	if (unlikely(logit))
2814 		ql_dbg(ql_dbg_io, fcport->vha, 0x5060,
2815 		   "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2816 		   sp->name, sp->handle, comp_status,
2817 		   fd->transferred_length, le32_to_cpu(sts->residual_len),
2818 		   sts->ox_id);
2819 
2820 	/*
2821 	 * If transport error then Failure (HBA rejects request)
2822 	 * otherwise transport will handle.
2823 	 */
2824 	switch (le16_to_cpu(comp_status)) {
2825 	case CS_COMPLETE:
2826 		break;
2827 
2828 	case CS_RESET:
2829 	case CS_PORT_UNAVAILABLE:
2830 	case CS_PORT_LOGGED_OUT:
2831 		fcport->nvme_flag |= NVME_FLAG_RESETTING;
2832 		if (atomic_read(&fcport->state) == FCS_ONLINE) {
2833 			ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2834 			       "Port to be marked lost on fcport=%06x, current "
2835 			       "port state= %s comp_status %x.\n",
2836 			       fcport->d_id.b24, port_state_str[FCS_ONLINE],
2837 			       comp_status);
2838 
2839 			qlt_schedule_sess_for_deletion(fcport);
2840 		}
2841 		fallthrough;
2842 	case CS_ABORTED:
2843 	case CS_PORT_BUSY:
2844 		fd->transferred_length = 0;
2845 		iocb->u.nvme.rsp_pyld_len = 0;
2846 		ret = QLA_ABORTED;
2847 		break;
2848 	case CS_DATA_UNDERRUN:
2849 		break;
2850 	default:
2851 		ret = QLA_FUNCTION_FAILED;
2852 		break;
2853 	}
2854 	sp->done(sp, ret);
2855 }
2856 
qla_ctrlvp_completed(scsi_qla_host_t * vha,struct req_que * req,struct vp_ctrl_entry_24xx * vce)2857 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2858     struct vp_ctrl_entry_24xx *vce)
2859 {
2860 	const char func[] = "CTRLVP-IOCB";
2861 	srb_t *sp;
2862 	int rval = QLA_SUCCESS;
2863 
2864 	sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2865 	if (!sp)
2866 		return;
2867 
2868 	if (vce->entry_status != 0) {
2869 		ql_dbg(ql_dbg_vport, vha, 0x10c4,
2870 		    "%s: Failed to complete IOCB -- error status (%x)\n",
2871 		    sp->name, vce->entry_status);
2872 		rval = QLA_FUNCTION_FAILED;
2873 	} else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2874 		ql_dbg(ql_dbg_vport, vha, 0x10c5,
2875 		    "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2876 		    sp->name, le16_to_cpu(vce->comp_status),
2877 		    le16_to_cpu(vce->vp_idx_failed));
2878 		rval = QLA_FUNCTION_FAILED;
2879 	} else {
2880 		ql_dbg(ql_dbg_vport, vha, 0x10c6,
2881 		    "Done %s.\n", __func__);
2882 	}
2883 
2884 	sp->rc = rval;
2885 	sp->done(sp, rval);
2886 }
2887 
2888 /* Process a single response queue entry. */
qla2x00_process_response_entry(struct scsi_qla_host * vha,struct rsp_que * rsp,sts_entry_t * pkt)2889 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2890 					   struct rsp_que *rsp,
2891 					   sts_entry_t *pkt)
2892 {
2893 	sts21_entry_t *sts21_entry;
2894 	sts22_entry_t *sts22_entry;
2895 	uint16_t handle_cnt;
2896 	uint16_t cnt;
2897 
2898 	switch (pkt->entry_type) {
2899 	case STATUS_TYPE:
2900 		qla2x00_status_entry(vha, rsp, pkt);
2901 		break;
2902 	case STATUS_TYPE_21:
2903 		sts21_entry = (sts21_entry_t *)pkt;
2904 		handle_cnt = sts21_entry->handle_count;
2905 		for (cnt = 0; cnt < handle_cnt; cnt++)
2906 			qla2x00_process_completed_request(vha, rsp->req,
2907 						sts21_entry->handle[cnt]);
2908 		break;
2909 	case STATUS_TYPE_22:
2910 		sts22_entry = (sts22_entry_t *)pkt;
2911 		handle_cnt = sts22_entry->handle_count;
2912 		for (cnt = 0; cnt < handle_cnt; cnt++)
2913 			qla2x00_process_completed_request(vha, rsp->req,
2914 						sts22_entry->handle[cnt]);
2915 		break;
2916 	case STATUS_CONT_TYPE:
2917 		qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2918 		break;
2919 	case MBX_IOCB_TYPE:
2920 		qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2921 		break;
2922 	case CT_IOCB_TYPE:
2923 		qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2924 		break;
2925 	default:
2926 		/* Type Not Supported. */
2927 		ql_log(ql_log_warn, vha, 0x504a,
2928 		       "Received unknown response pkt type %x entry status=%x.\n",
2929 		       pkt->entry_type, pkt->entry_status);
2930 		break;
2931 	}
2932 }
2933 
2934 /**
2935  * qla2x00_process_response_queue() - Process response queue entries.
2936  * @rsp: response queue
2937  */
2938 void
qla2x00_process_response_queue(struct rsp_que * rsp)2939 qla2x00_process_response_queue(struct rsp_que *rsp)
2940 {
2941 	struct scsi_qla_host *vha;
2942 	struct qla_hw_data *ha = rsp->hw;
2943 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2944 	sts_entry_t	*pkt;
2945 
2946 	vha = pci_get_drvdata(ha->pdev);
2947 
2948 	if (!vha->flags.online)
2949 		return;
2950 
2951 	while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2952 		pkt = (sts_entry_t *)rsp->ring_ptr;
2953 
2954 		rsp->ring_index++;
2955 		if (rsp->ring_index == rsp->length) {
2956 			rsp->ring_index = 0;
2957 			rsp->ring_ptr = rsp->ring;
2958 		} else {
2959 			rsp->ring_ptr++;
2960 		}
2961 
2962 		if (pkt->entry_status != 0) {
2963 			qla2x00_error_entry(vha, rsp, pkt);
2964 			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2965 			wmb();
2966 			continue;
2967 		}
2968 
2969 		qla2x00_process_response_entry(vha, rsp, pkt);
2970 		((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2971 		wmb();
2972 	}
2973 
2974 	/* Adjust ring index */
2975 	wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2976 }
2977 
2978 static inline void
qla2x00_handle_sense(srb_t * sp,uint8_t * sense_data,uint32_t par_sense_len,uint32_t sense_len,struct rsp_que * rsp,int res)2979 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2980 		     uint32_t sense_len, struct rsp_que *rsp, int res)
2981 {
2982 	struct scsi_qla_host *vha = sp->vha;
2983 	struct scsi_cmnd *cp = GET_CMD_SP(sp);
2984 	uint32_t track_sense_len;
2985 
2986 	if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2987 		sense_len = SCSI_SENSE_BUFFERSIZE;
2988 
2989 	SET_CMD_SENSE_LEN(sp, sense_len);
2990 	SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2991 	track_sense_len = sense_len;
2992 
2993 	if (sense_len > par_sense_len)
2994 		sense_len = par_sense_len;
2995 
2996 	memcpy(cp->sense_buffer, sense_data, sense_len);
2997 
2998 	SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2999 	track_sense_len -= sense_len;
3000 	SET_CMD_SENSE_LEN(sp, track_sense_len);
3001 
3002 	if (track_sense_len != 0) {
3003 		rsp->status_srb = sp;
3004 		cp->result = res;
3005 	}
3006 
3007 	if (sense_len) {
3008 		ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
3009 		    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
3010 		    sp->vha->host_no, cp->device->id, cp->device->lun,
3011 		    cp);
3012 		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
3013 		    cp->sense_buffer, sense_len);
3014 	}
3015 }
3016 
3017 struct scsi_dif_tuple {
3018 	__be16 guard;       /* Checksum */
3019 	__be16 app_tag;         /* APPL identifier */
3020 	__be32 ref_tag;         /* Target LBA or indirect LBA */
3021 };
3022 
3023 /*
3024  * Checks the guard or meta-data for the type of error
3025  * detected by the HBA. In case of errors, we set the
3026  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
3027  * to indicate to the kernel that the HBA detected error.
3028  */
3029 static inline int
qla2x00_handle_dif_error(srb_t * sp,struct sts_entry_24xx * sts24)3030 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
3031 {
3032 	struct scsi_qla_host *vha = sp->vha;
3033 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3034 	uint8_t		*ap = &sts24->data[12];
3035 	uint8_t		*ep = &sts24->data[20];
3036 	uint32_t	e_ref_tag, a_ref_tag;
3037 	uint16_t	e_app_tag, a_app_tag;
3038 	uint16_t	e_guard, a_guard;
3039 
3040 	/*
3041 	 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
3042 	 * would make guard field appear at offset 2
3043 	 */
3044 	a_guard   = get_unaligned_le16(ap + 2);
3045 	a_app_tag = get_unaligned_le16(ap + 0);
3046 	a_ref_tag = get_unaligned_le32(ap + 4);
3047 	e_guard   = get_unaligned_le16(ep + 2);
3048 	e_app_tag = get_unaligned_le16(ep + 0);
3049 	e_ref_tag = get_unaligned_le32(ep + 4);
3050 
3051 	ql_dbg(ql_dbg_io, vha, 0x3023,
3052 	    "iocb(s) %p Returned STATUS.\n", sts24);
3053 
3054 	ql_dbg(ql_dbg_io, vha, 0x3024,
3055 	    "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
3056 	    " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
3057 	    " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
3058 	    cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
3059 	    a_app_tag, e_app_tag, a_guard, e_guard);
3060 
3061 	/*
3062 	 * Ignore sector if:
3063 	 * For type     3: ref & app tag is all 'f's
3064 	 * For type 0,1,2: app tag is all 'f's
3065 	 */
3066 	if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
3067 	    (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
3068 	     a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
3069 		uint32_t blocks_done, resid;
3070 		sector_t lba_s = scsi_get_lba(cmd);
3071 
3072 		/* 2TB boundary case covered automatically with this */
3073 		blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
3074 
3075 		resid = scsi_bufflen(cmd) - (blocks_done *
3076 		    cmd->device->sector_size);
3077 
3078 		scsi_set_resid(cmd, resid);
3079 		cmd->result = DID_OK << 16;
3080 
3081 		/* Update protection tag */
3082 		if (scsi_prot_sg_count(cmd)) {
3083 			uint32_t i, j = 0, k = 0, num_ent;
3084 			struct scatterlist *sg;
3085 			struct t10_pi_tuple *spt;
3086 
3087 			/* Patch the corresponding protection tags */
3088 			scsi_for_each_prot_sg(cmd, sg,
3089 			    scsi_prot_sg_count(cmd), i) {
3090 				num_ent = sg_dma_len(sg) / 8;
3091 				if (k + num_ent < blocks_done) {
3092 					k += num_ent;
3093 					continue;
3094 				}
3095 				j = blocks_done - k - 1;
3096 				k = blocks_done;
3097 				break;
3098 			}
3099 
3100 			if (k != blocks_done) {
3101 				ql_log(ql_log_warn, vha, 0x302f,
3102 				    "unexpected tag values tag:lba=%x:%llx)\n",
3103 				    e_ref_tag, (unsigned long long)lba_s);
3104 				return 1;
3105 			}
3106 
3107 			spt = page_address(sg_page(sg)) + sg->offset;
3108 			spt += j;
3109 
3110 			spt->app_tag = T10_PI_APP_ESCAPE;
3111 			if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
3112 				spt->ref_tag = T10_PI_REF_ESCAPE;
3113 		}
3114 
3115 		return 0;
3116 	}
3117 
3118 	/* check guard */
3119 	if (e_guard != a_guard) {
3120 		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
3121 		set_host_byte(cmd, DID_ABORT);
3122 		return 1;
3123 	}
3124 
3125 	/* check ref tag */
3126 	if (e_ref_tag != a_ref_tag) {
3127 		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
3128 		set_host_byte(cmd, DID_ABORT);
3129 		return 1;
3130 	}
3131 
3132 	/* check appl tag */
3133 	if (e_app_tag != a_app_tag) {
3134 		scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
3135 		set_host_byte(cmd, DID_ABORT);
3136 		return 1;
3137 	}
3138 
3139 	return 1;
3140 }
3141 
3142 static void
qla25xx_process_bidir_status_iocb(scsi_qla_host_t * vha,void * pkt,struct req_que * req,uint32_t index)3143 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
3144 				  struct req_que *req, uint32_t index)
3145 {
3146 	struct qla_hw_data *ha = vha->hw;
3147 	srb_t *sp;
3148 	uint16_t	comp_status;
3149 	uint16_t	scsi_status;
3150 	uint16_t thread_id;
3151 	uint32_t rval = EXT_STATUS_OK;
3152 	struct bsg_job *bsg_job = NULL;
3153 	struct fc_bsg_request *bsg_request;
3154 	struct fc_bsg_reply *bsg_reply;
3155 	sts_entry_t *sts = pkt;
3156 	struct sts_entry_24xx *sts24 = pkt;
3157 
3158 	/* Validate handle. */
3159 	if (index >= req->num_outstanding_cmds) {
3160 		ql_log(ql_log_warn, vha, 0x70af,
3161 		    "Invalid SCSI completion handle 0x%x.\n", index);
3162 		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3163 		return;
3164 	}
3165 
3166 	sp = req->outstanding_cmds[index];
3167 	if (!sp) {
3168 		ql_log(ql_log_warn, vha, 0x70b0,
3169 		    "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
3170 		    req->id, index);
3171 
3172 		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3173 		return;
3174 	}
3175 
3176 	/* Free outstanding command slot. */
3177 	req->outstanding_cmds[index] = NULL;
3178 	bsg_job = sp->u.bsg_job;
3179 	bsg_request = bsg_job->request;
3180 	bsg_reply = bsg_job->reply;
3181 
3182 	if (IS_FWI2_CAPABLE(ha)) {
3183 		comp_status = le16_to_cpu(sts24->comp_status);
3184 		scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3185 	} else {
3186 		comp_status = le16_to_cpu(sts->comp_status);
3187 		scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3188 	}
3189 
3190 	thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3191 	switch (comp_status) {
3192 	case CS_COMPLETE:
3193 		if (scsi_status == 0) {
3194 			bsg_reply->reply_payload_rcv_len =
3195 					bsg_job->reply_payload.payload_len;
3196 			vha->qla_stats.input_bytes +=
3197 				bsg_reply->reply_payload_rcv_len;
3198 			vha->qla_stats.input_requests++;
3199 			rval = EXT_STATUS_OK;
3200 		}
3201 		goto done;
3202 
3203 	case CS_DATA_OVERRUN:
3204 		ql_dbg(ql_dbg_user, vha, 0x70b1,
3205 		    "Command completed with data overrun thread_id=%d\n",
3206 		    thread_id);
3207 		rval = EXT_STATUS_DATA_OVERRUN;
3208 		break;
3209 
3210 	case CS_DATA_UNDERRUN:
3211 		ql_dbg(ql_dbg_user, vha, 0x70b2,
3212 		    "Command completed with data underrun thread_id=%d\n",
3213 		    thread_id);
3214 		rval = EXT_STATUS_DATA_UNDERRUN;
3215 		break;
3216 	case CS_BIDIR_RD_OVERRUN:
3217 		ql_dbg(ql_dbg_user, vha, 0x70b3,
3218 		    "Command completed with read data overrun thread_id=%d\n",
3219 		    thread_id);
3220 		rval = EXT_STATUS_DATA_OVERRUN;
3221 		break;
3222 
3223 	case CS_BIDIR_RD_WR_OVERRUN:
3224 		ql_dbg(ql_dbg_user, vha, 0x70b4,
3225 		    "Command completed with read and write data overrun "
3226 		    "thread_id=%d\n", thread_id);
3227 		rval = EXT_STATUS_DATA_OVERRUN;
3228 		break;
3229 
3230 	case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
3231 		ql_dbg(ql_dbg_user, vha, 0x70b5,
3232 		    "Command completed with read data over and write data "
3233 		    "underrun thread_id=%d\n", thread_id);
3234 		rval = EXT_STATUS_DATA_OVERRUN;
3235 		break;
3236 
3237 	case CS_BIDIR_RD_UNDERRUN:
3238 		ql_dbg(ql_dbg_user, vha, 0x70b6,
3239 		    "Command completed with read data underrun "
3240 		    "thread_id=%d\n", thread_id);
3241 		rval = EXT_STATUS_DATA_UNDERRUN;
3242 		break;
3243 
3244 	case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
3245 		ql_dbg(ql_dbg_user, vha, 0x70b7,
3246 		    "Command completed with read data under and write data "
3247 		    "overrun thread_id=%d\n", thread_id);
3248 		rval = EXT_STATUS_DATA_UNDERRUN;
3249 		break;
3250 
3251 	case CS_BIDIR_RD_WR_UNDERRUN:
3252 		ql_dbg(ql_dbg_user, vha, 0x70b8,
3253 		    "Command completed with read and write data underrun "
3254 		    "thread_id=%d\n", thread_id);
3255 		rval = EXT_STATUS_DATA_UNDERRUN;
3256 		break;
3257 
3258 	case CS_BIDIR_DMA:
3259 		ql_dbg(ql_dbg_user, vha, 0x70b9,
3260 		    "Command completed with data DMA error thread_id=%d\n",
3261 		    thread_id);
3262 		rval = EXT_STATUS_DMA_ERR;
3263 		break;
3264 
3265 	case CS_TIMEOUT:
3266 		ql_dbg(ql_dbg_user, vha, 0x70ba,
3267 		    "Command completed with timeout thread_id=%d\n",
3268 		    thread_id);
3269 		rval = EXT_STATUS_TIMEOUT;
3270 		break;
3271 	default:
3272 		ql_dbg(ql_dbg_user, vha, 0x70bb,
3273 		    "Command completed with completion status=0x%x "
3274 		    "thread_id=%d\n", comp_status, thread_id);
3275 		rval = EXT_STATUS_ERR;
3276 		break;
3277 	}
3278 	bsg_reply->reply_payload_rcv_len = 0;
3279 
3280 done:
3281 	/* Return the vendor specific reply to API */
3282 	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
3283 	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
3284 	/* Always return DID_OK, bsg will send the vendor specific response
3285 	 * in this case only */
3286 	sp->done(sp, DID_OK << 16);
3287 
3288 }
3289 
3290 /**
3291  * qla2x00_status_entry() - Process a Status IOCB entry.
3292  * @vha: SCSI driver HA context
3293  * @rsp: response queue
3294  * @pkt: Entry pointer
3295  */
3296 static void
qla2x00_status_entry(scsi_qla_host_t * vha,struct rsp_que * rsp,void * pkt)3297 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
3298 {
3299 	srb_t		*sp;
3300 	fc_port_t	*fcport;
3301 	struct scsi_cmnd *cp;
3302 	sts_entry_t *sts = pkt;
3303 	struct sts_entry_24xx *sts24 = pkt;
3304 	uint16_t	comp_status;
3305 	uint16_t	scsi_status;
3306 	uint16_t	ox_id;
3307 	uint8_t		lscsi_status;
3308 	int32_t		resid;
3309 	uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
3310 	    fw_resid_len;
3311 	uint8_t		*rsp_info, *sense_data;
3312 	struct qla_hw_data *ha = vha->hw;
3313 	uint32_t handle;
3314 	uint16_t que;
3315 	struct req_que *req;
3316 	int logit = 1;
3317 	int res = 0;
3318 	uint16_t state_flags = 0;
3319 	uint16_t sts_qual = 0;
3320 
3321 	if (IS_FWI2_CAPABLE(ha)) {
3322 		comp_status = le16_to_cpu(sts24->comp_status);
3323 		scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3324 		state_flags = le16_to_cpu(sts24->state_flags);
3325 	} else {
3326 		comp_status = le16_to_cpu(sts->comp_status);
3327 		scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3328 	}
3329 	handle = (uint32_t) LSW(sts->handle);
3330 	que = MSW(sts->handle);
3331 	req = ha->req_q_map[que];
3332 
3333 	/* Check for invalid queue pointer */
3334 	if (req == NULL ||
3335 	    que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
3336 		ql_dbg(ql_dbg_io, vha, 0x3059,
3337 		    "Invalid status handle (0x%x): Bad req pointer. req=%p, "
3338 		    "que=%u.\n", sts->handle, req, que);
3339 		return;
3340 	}
3341 
3342 	/* Validate handle. */
3343 	if (handle < req->num_outstanding_cmds) {
3344 		sp = req->outstanding_cmds[handle];
3345 		if (!sp) {
3346 			ql_dbg(ql_dbg_io, vha, 0x3075,
3347 			    "%s(%ld): Already returned command for status handle (0x%x).\n",
3348 			    __func__, vha->host_no, sts->handle);
3349 			return;
3350 		}
3351 	} else {
3352 		ql_dbg(ql_dbg_io, vha, 0x3017,
3353 		    "Invalid status handle, out of range (0x%x).\n",
3354 		    sts->handle);
3355 
3356 		if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3357 			if (IS_P3P_TYPE(ha))
3358 				set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3359 			else
3360 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3361 			qla2xxx_wake_dpc(vha);
3362 		}
3363 		return;
3364 	}
3365 	qla_put_fw_resources(sp->qpair, &sp->iores);
3366 
3367 	if (sp->cmd_type != TYPE_SRB) {
3368 		req->outstanding_cmds[handle] = NULL;
3369 		ql_dbg(ql_dbg_io, vha, 0x3015,
3370 		    "Unknown sp->cmd_type %x %p).\n",
3371 		    sp->cmd_type, sp);
3372 		return;
3373 	}
3374 
3375 	/* NVME completion. */
3376 	if (sp->type == SRB_NVME_CMD) {
3377 		req->outstanding_cmds[handle] = NULL;
3378 		qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
3379 		return;
3380 	}
3381 
3382 	if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
3383 		qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
3384 		return;
3385 	}
3386 
3387 	/* Task Management completion. */
3388 	if (sp->type == SRB_TM_CMD) {
3389 		qla24xx_tm_iocb_entry(vha, req, pkt);
3390 		return;
3391 	}
3392 
3393 	/* Fast path completion. */
3394 	qla_chk_edif_rx_sa_delete_pending(vha, sp, sts24);
3395 	sp->qpair->cmd_completion_cnt++;
3396 
3397 	if (comp_status == CS_COMPLETE && scsi_status == 0) {
3398 		qla2x00_process_completed_request(vha, req, handle);
3399 
3400 		return;
3401 	}
3402 
3403 	cp = GET_CMD_SP(sp);
3404 	if (cp == NULL) {
3405 		ql_dbg(ql_dbg_io, vha, 0x3018,
3406 		    "Command already returned (0x%x/%p).\n",
3407 		    sts->handle, sp);
3408 
3409 		req->outstanding_cmds[handle] = NULL;
3410 		return;
3411 	}
3412 
3413 	lscsi_status = scsi_status & STATUS_MASK;
3414 
3415 	fcport = sp->fcport;
3416 
3417 	ox_id = 0;
3418 	sense_len = par_sense_len = rsp_info_len = resid_len =
3419 	    fw_resid_len = 0;
3420 	if (IS_FWI2_CAPABLE(ha)) {
3421 		if (scsi_status & SS_SENSE_LEN_VALID)
3422 			sense_len = le32_to_cpu(sts24->sense_len);
3423 		if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3424 			rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
3425 		if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
3426 			resid_len = le32_to_cpu(sts24->rsp_residual_count);
3427 		if (comp_status == CS_DATA_UNDERRUN)
3428 			fw_resid_len = le32_to_cpu(sts24->residual_len);
3429 		rsp_info = sts24->data;
3430 		sense_data = sts24->data;
3431 		host_to_fcp_swap(sts24->data, sizeof(sts24->data));
3432 		ox_id = le16_to_cpu(sts24->ox_id);
3433 		par_sense_len = sizeof(sts24->data);
3434 		sts_qual = le16_to_cpu(sts24->status_qualifier);
3435 	} else {
3436 		if (scsi_status & SS_SENSE_LEN_VALID)
3437 			sense_len = le16_to_cpu(sts->req_sense_length);
3438 		if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3439 			rsp_info_len = le16_to_cpu(sts->rsp_info_len);
3440 		resid_len = le32_to_cpu(sts->residual_length);
3441 		rsp_info = sts->rsp_info;
3442 		sense_data = sts->req_sense_data;
3443 		par_sense_len = sizeof(sts->req_sense_data);
3444 	}
3445 
3446 	/* Check for any FCP transport errors. */
3447 	if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
3448 		/* Sense data lies beyond any FCP RESPONSE data. */
3449 		if (IS_FWI2_CAPABLE(ha)) {
3450 			sense_data += rsp_info_len;
3451 			par_sense_len -= rsp_info_len;
3452 		}
3453 		if (rsp_info_len > 3 && rsp_info[3]) {
3454 			ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
3455 			    "FCP I/O protocol failure (0x%x/0x%x).\n",
3456 			    rsp_info_len, rsp_info[3]);
3457 
3458 			res = DID_BUS_BUSY << 16;
3459 			goto out;
3460 		}
3461 	}
3462 
3463 	/* Check for overrun. */
3464 	if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3465 	    scsi_status & SS_RESIDUAL_OVER)
3466 		comp_status = CS_DATA_OVERRUN;
3467 
3468 	/*
3469 	 * Check retry_delay_timer value if we receive a busy or
3470 	 * queue full.
3471 	 */
3472 	if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3473 		     lscsi_status == SAM_STAT_BUSY))
3474 		qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3475 
3476 	/*
3477 	 * Based on Host and scsi status generate status code for Linux
3478 	 */
3479 	switch (comp_status) {
3480 	case CS_COMPLETE:
3481 	case CS_QUEUE_FULL:
3482 		if (scsi_status == 0) {
3483 			res = DID_OK << 16;
3484 			break;
3485 		}
3486 		if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3487 			resid = resid_len;
3488 			scsi_set_resid(cp, resid);
3489 
3490 			if (!lscsi_status &&
3491 			    ((unsigned)(scsi_bufflen(cp) - resid) <
3492 			     cp->underflow)) {
3493 				ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3494 				    "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3495 				    resid, scsi_bufflen(cp));
3496 
3497 				res = DID_ERROR << 16;
3498 				break;
3499 			}
3500 		}
3501 		res = DID_OK << 16 | lscsi_status;
3502 
3503 		if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3504 			ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3505 			    "QUEUE FULL detected.\n");
3506 			break;
3507 		}
3508 		logit = 0;
3509 		if (lscsi_status != SS_CHECK_CONDITION)
3510 			break;
3511 
3512 		memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3513 		if (!(scsi_status & SS_SENSE_LEN_VALID))
3514 			break;
3515 
3516 		qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3517 		    rsp, res);
3518 		break;
3519 
3520 	case CS_DATA_UNDERRUN:
3521 		/* Use F/W calculated residual length. */
3522 		resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3523 		scsi_set_resid(cp, resid);
3524 		if (scsi_status & SS_RESIDUAL_UNDER) {
3525 			if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3526 				ql_log(ql_log_warn, fcport->vha, 0x301d,
3527 				       "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3528 				       resid, scsi_bufflen(cp));
3529 
3530 				res = DID_ERROR << 16 | lscsi_status;
3531 				goto check_scsi_status;
3532 			}
3533 
3534 			if (!lscsi_status &&
3535 			    ((unsigned)(scsi_bufflen(cp) - resid) <
3536 			    cp->underflow)) {
3537 				ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3538 				    "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3539 				    resid, scsi_bufflen(cp));
3540 
3541 				res = DID_ERROR << 16;
3542 				break;
3543 			}
3544 		} else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3545 			    lscsi_status != SAM_STAT_BUSY) {
3546 			/*
3547 			 * scsi status of task set and busy are considered to be
3548 			 * task not completed.
3549 			 */
3550 
3551 			ql_log(ql_log_warn, fcport->vha, 0x301f,
3552 			       "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3553 			       resid, scsi_bufflen(cp));
3554 
3555 			vha->interface_err_cnt++;
3556 
3557 			res = DID_ERROR << 16 | lscsi_status;
3558 			goto check_scsi_status;
3559 		} else {
3560 			ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3561 			    "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3562 			    scsi_status, lscsi_status);
3563 		}
3564 
3565 		res = DID_OK << 16 | lscsi_status;
3566 		logit = 0;
3567 
3568 check_scsi_status:
3569 		/*
3570 		 * Check to see if SCSI Status is non zero. If so report SCSI
3571 		 * Status.
3572 		 */
3573 		if (lscsi_status != 0) {
3574 			if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3575 				ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3576 				    "QUEUE FULL detected.\n");
3577 				logit = 1;
3578 				break;
3579 			}
3580 			if (lscsi_status != SS_CHECK_CONDITION)
3581 				break;
3582 
3583 			memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3584 			if (!(scsi_status & SS_SENSE_LEN_VALID))
3585 				break;
3586 
3587 			qla2x00_handle_sense(sp, sense_data, par_sense_len,
3588 			    sense_len, rsp, res);
3589 		}
3590 		break;
3591 
3592 	case CS_PORT_LOGGED_OUT:
3593 	case CS_PORT_CONFIG_CHG:
3594 	case CS_PORT_BUSY:
3595 	case CS_INCOMPLETE:
3596 	case CS_PORT_UNAVAILABLE:
3597 	case CS_TIMEOUT:
3598 	case CS_RESET:
3599 	case CS_EDIF_INV_REQ:
3600 
3601 		/*
3602 		 * We are going to have the fc class block the rport
3603 		 * while we try to recover so instruct the mid layer
3604 		 * to requeue until the class decides how to handle this.
3605 		 */
3606 		res = DID_TRANSPORT_DISRUPTED << 16;
3607 
3608 		if (comp_status == CS_TIMEOUT) {
3609 			if (IS_FWI2_CAPABLE(ha))
3610 				break;
3611 			else if ((le16_to_cpu(sts->status_flags) &
3612 			    SF_LOGOUT_SENT) == 0)
3613 				break;
3614 		}
3615 
3616 		if (atomic_read(&fcport->state) == FCS_ONLINE) {
3617 			ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3618 				"Port to be marked lost on fcport=%02x%02x%02x, current "
3619 				"port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3620 				fcport->d_id.b.area, fcport->d_id.b.al_pa,
3621 				port_state_str[FCS_ONLINE],
3622 				comp_status);
3623 
3624 			qlt_schedule_sess_for_deletion(fcport);
3625 		}
3626 
3627 		break;
3628 
3629 	case CS_ABORTED:
3630 		res = DID_RESET << 16;
3631 		break;
3632 
3633 	case CS_DIF_ERROR:
3634 		logit = qla2x00_handle_dif_error(sp, sts24);
3635 		res = cp->result;
3636 		break;
3637 
3638 	case CS_TRANSPORT:
3639 		res = DID_ERROR << 16;
3640 		vha->hw_err_cnt++;
3641 
3642 		if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3643 			break;
3644 
3645 		if (state_flags & BIT_4)
3646 			scmd_printk(KERN_WARNING, cp,
3647 			    "Unsupported device '%s' found.\n",
3648 			    cp->device->vendor);
3649 		break;
3650 
3651 	case CS_DMA:
3652 		ql_log(ql_log_info, fcport->vha, 0x3022,
3653 		    "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3654 		    comp_status, scsi_status, res, vha->host_no,
3655 		    cp->device->id, cp->device->lun, fcport->d_id.b24,
3656 		    ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3657 		    resid_len, fw_resid_len, sp, cp);
3658 		ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3659 		    pkt, sizeof(*sts24));
3660 		res = DID_ERROR << 16;
3661 		vha->hw_err_cnt++;
3662 		break;
3663 	default:
3664 		res = DID_ERROR << 16;
3665 		break;
3666 	}
3667 
3668 out:
3669 	if (logit)
3670 		ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3671 		       "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3672 		       comp_status, scsi_status, res, vha->host_no,
3673 		       cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3674 		       fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3675 		       cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3676 		       resid_len, fw_resid_len, sp, cp);
3677 
3678 	if (rsp->status_srb == NULL)
3679 		sp->done(sp, res);
3680 
3681 	/* for io's, clearing of outstanding_cmds[handle] means scsi_done was called */
3682 	req->outstanding_cmds[handle] = NULL;
3683 }
3684 
3685 /**
3686  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3687  * @rsp: response queue
3688  * @pkt: Entry pointer
3689  *
3690  * Extended sense data.
3691  */
3692 static void
qla2x00_status_cont_entry(struct rsp_que * rsp,sts_cont_entry_t * pkt)3693 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3694 {
3695 	uint8_t	sense_sz = 0;
3696 	struct qla_hw_data *ha = rsp->hw;
3697 	struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3698 	srb_t *sp = rsp->status_srb;
3699 	struct scsi_cmnd *cp;
3700 	uint32_t sense_len;
3701 	uint8_t *sense_ptr;
3702 
3703 	if (!sp || !GET_CMD_SENSE_LEN(sp))
3704 		return;
3705 
3706 	sense_len = GET_CMD_SENSE_LEN(sp);
3707 	sense_ptr = GET_CMD_SENSE_PTR(sp);
3708 
3709 	cp = GET_CMD_SP(sp);
3710 	if (cp == NULL) {
3711 		ql_log(ql_log_warn, vha, 0x3025,
3712 		    "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3713 
3714 		rsp->status_srb = NULL;
3715 		return;
3716 	}
3717 
3718 	if (sense_len > sizeof(pkt->data))
3719 		sense_sz = sizeof(pkt->data);
3720 	else
3721 		sense_sz = sense_len;
3722 
3723 	/* Move sense data. */
3724 	if (IS_FWI2_CAPABLE(ha))
3725 		host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3726 	memcpy(sense_ptr, pkt->data, sense_sz);
3727 	ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3728 		sense_ptr, sense_sz);
3729 
3730 	sense_len -= sense_sz;
3731 	sense_ptr += sense_sz;
3732 
3733 	SET_CMD_SENSE_PTR(sp, sense_ptr);
3734 	SET_CMD_SENSE_LEN(sp, sense_len);
3735 
3736 	/* Place command on done queue. */
3737 	if (sense_len == 0) {
3738 		rsp->status_srb = NULL;
3739 		sp->done(sp, cp->result);
3740 	}
3741 }
3742 
3743 /**
3744  * qla2x00_error_entry() - Process an error entry.
3745  * @vha: SCSI driver HA context
3746  * @rsp: response queue
3747  * @pkt: Entry pointer
3748  * return : 1=allow further error analysis. 0=no additional error analysis.
3749  */
3750 static int
qla2x00_error_entry(scsi_qla_host_t * vha,struct rsp_que * rsp,sts_entry_t * pkt)3751 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3752 {
3753 	srb_t *sp;
3754 	struct qla_hw_data *ha = vha->hw;
3755 	const char func[] = "ERROR-IOCB";
3756 	uint16_t que = MSW(pkt->handle);
3757 	struct req_que *req = NULL;
3758 	int res = DID_ERROR << 16;
3759 	u16 index;
3760 
3761 	ql_dbg(ql_dbg_async, vha, 0x502a,
3762 	    "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3763 	    pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3764 
3765 	if (que >= ha->max_req_queues || !ha->req_q_map[que])
3766 		goto fatal;
3767 
3768 	req = ha->req_q_map[que];
3769 
3770 	if (pkt->entry_status & RF_BUSY)
3771 		res = DID_BUS_BUSY << 16;
3772 
3773 	if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3774 		return 0;
3775 
3776 	switch (pkt->entry_type) {
3777 	case NOTIFY_ACK_TYPE:
3778 	case STATUS_CONT_TYPE:
3779 	case LOGINOUT_PORT_IOCB_TYPE:
3780 	case CT_IOCB_TYPE:
3781 	case ELS_IOCB_TYPE:
3782 	case ABORT_IOCB_TYPE:
3783 	case MBX_IOCB_TYPE:
3784 	default:
3785 		sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3786 		if (sp) {
3787 			sp->done(sp, res);
3788 			return 0;
3789 		}
3790 		break;
3791 
3792 	case SA_UPDATE_IOCB_TYPE:
3793 	case ABTS_RESP_24XX:
3794 	case CTIO_TYPE7:
3795 	case CTIO_CRC2:
3796 		return 1;
3797 	case STATUS_TYPE:
3798 		sp = qla_get_sp_from_handle(vha, func, req, pkt, &index);
3799 		if (sp) {
3800 			sp->done(sp, res);
3801 			req->outstanding_cmds[index] = NULL;
3802 			return 0;
3803 		}
3804 		break;
3805 	}
3806 fatal:
3807 	ql_log(ql_log_warn, vha, 0x5030,
3808 	    "Error entry - invalid handle/queue (%04x).\n", que);
3809 	return 0;
3810 }
3811 
3812 /**
3813  * qla24xx_mbx_completion() - Process mailbox command completions.
3814  * @vha: SCSI driver HA context
3815  * @mb0: Mailbox0 register
3816  */
3817 static void
qla24xx_mbx_completion(scsi_qla_host_t * vha,uint16_t mb0)3818 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3819 {
3820 	uint16_t	cnt;
3821 	uint32_t	mboxes;
3822 	__le16 __iomem *wptr;
3823 	struct qla_hw_data *ha = vha->hw;
3824 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3825 
3826 	/* Read all mbox registers? */
3827 	WARN_ON_ONCE(ha->mbx_count > 32);
3828 	mboxes = (1ULL << ha->mbx_count) - 1;
3829 	if (!ha->mcp)
3830 		ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3831 	else
3832 		mboxes = ha->mcp->in_mb;
3833 
3834 	/* Load return mailbox registers. */
3835 	ha->flags.mbox_int = 1;
3836 	ha->mailbox_out[0] = mb0;
3837 	mboxes >>= 1;
3838 	wptr = &reg->mailbox1;
3839 
3840 	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3841 		if (mboxes & BIT_0)
3842 			ha->mailbox_out[cnt] = rd_reg_word(wptr);
3843 
3844 		mboxes >>= 1;
3845 		wptr++;
3846 	}
3847 }
3848 
3849 static void
qla24xx_abort_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct abort_entry_24xx * pkt)3850 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3851 	struct abort_entry_24xx *pkt)
3852 {
3853 	const char func[] = "ABT_IOCB";
3854 	srb_t *sp;
3855 	srb_t *orig_sp = NULL;
3856 	struct srb_iocb *abt;
3857 
3858 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3859 	if (!sp)
3860 		return;
3861 
3862 	abt = &sp->u.iocb_cmd;
3863 	abt->u.abt.comp_status = pkt->comp_status;
3864 	orig_sp = sp->cmd_sp;
3865 	/* Need to pass original sp */
3866 	if (orig_sp)
3867 		qla_nvme_abort_process_comp_status(pkt, orig_sp);
3868 
3869 	sp->done(sp, 0);
3870 }
3871 
qla24xx_nvme_ls4_iocb(struct scsi_qla_host * vha,struct pt_ls4_request * pkt,struct req_que * req)3872 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3873     struct pt_ls4_request *pkt, struct req_que *req)
3874 {
3875 	srb_t *sp;
3876 	const char func[] = "LS4_IOCB";
3877 	uint16_t comp_status;
3878 
3879 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3880 	if (!sp)
3881 		return;
3882 
3883 	comp_status = le16_to_cpu(pkt->status);
3884 	sp->done(sp, comp_status);
3885 }
3886 
3887 /**
3888  * qla_chk_cont_iocb_avail - check for all continuation iocbs are available
3889  *   before iocb processing can start.
3890  * @vha: host adapter pointer
3891  * @rsp: respond queue
3892  * @pkt: head iocb describing how many continuation iocb
3893  * Return: 0 all iocbs has arrived, xx- all iocbs have not arrived.
3894  */
qla_chk_cont_iocb_avail(struct scsi_qla_host * vha,struct rsp_que * rsp,response_t * pkt,u32 rsp_q_in)3895 static int qla_chk_cont_iocb_avail(struct scsi_qla_host *vha,
3896 	struct rsp_que *rsp, response_t *pkt, u32 rsp_q_in)
3897 {
3898 	int start_pkt_ring_index;
3899 	u32 iocb_cnt = 0;
3900 	int rc = 0;
3901 
3902 	if (pkt->entry_count == 1)
3903 		return rc;
3904 
3905 	/* ring_index was pre-increment. set it back to current pkt */
3906 	if (rsp->ring_index == 0)
3907 		start_pkt_ring_index = rsp->length - 1;
3908 	else
3909 		start_pkt_ring_index = rsp->ring_index - 1;
3910 
3911 	if (rsp_q_in < start_pkt_ring_index)
3912 		/* q in ptr is wrapped */
3913 		iocb_cnt = rsp->length - start_pkt_ring_index + rsp_q_in;
3914 	else
3915 		iocb_cnt = rsp_q_in - start_pkt_ring_index;
3916 
3917 	if (iocb_cnt < pkt->entry_count)
3918 		rc = -EIO;
3919 
3920 	ql_dbg(ql_dbg_init, vha, 0x5091,
3921 	       "%s - ring %p pkt %p entry count %d iocb_cnt %d rsp_q_in %d rc %d\n",
3922 	       __func__, rsp->ring, pkt, pkt->entry_count, iocb_cnt, rsp_q_in, rc);
3923 
3924 	return rc;
3925 }
3926 
qla_marker_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct mrk_entry_24xx * pkt)3927 static void qla_marker_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3928 	struct mrk_entry_24xx *pkt)
3929 {
3930 	const char func[] = "MRK-IOCB";
3931 	srb_t *sp;
3932 	int res = QLA_SUCCESS;
3933 
3934 	if (!IS_FWI2_CAPABLE(vha->hw))
3935 		return;
3936 
3937 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3938 	if (!sp)
3939 		return;
3940 
3941 	if (pkt->entry_status) {
3942 		ql_dbg(ql_dbg_taskm, vha, 0x8025, "marker failure.\n");
3943 		res = QLA_COMMAND_ERROR;
3944 	}
3945 	sp->u.iocb_cmd.u.tmf.data = res;
3946 	sp->done(sp, res);
3947 }
3948 
3949 /**
3950  * qla24xx_process_response_queue() - Process response queue entries.
3951  * @vha: SCSI driver HA context
3952  * @rsp: response queue
3953  */
qla24xx_process_response_queue(struct scsi_qla_host * vha,struct rsp_que * rsp)3954 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3955 	struct rsp_que *rsp)
3956 {
3957 	struct sts_entry_24xx *pkt;
3958 	struct qla_hw_data *ha = vha->hw;
3959 	struct purex_entry_24xx *purex_entry;
3960 	struct purex_item *pure_item;
3961 	struct pt_ls4_rx_unsol *p;
3962 	u16 rsp_in = 0, cur_ring_index;
3963 	int is_shadow_hba;
3964 
3965 	if (!ha->flags.fw_started)
3966 		return;
3967 
3968 	if (rsp->qpair->cpuid != raw_smp_processor_id() || !rsp->qpair->rcv_intr) {
3969 		rsp->qpair->rcv_intr = 1;
3970 
3971 		if (!rsp->qpair->cpu_mapped)
3972 			qla_cpu_update(rsp->qpair, raw_smp_processor_id());
3973 	}
3974 
3975 #define __update_rsp_in(_is_shadow_hba, _rsp, _rsp_in)			\
3976 	do {								\
3977 		_rsp_in = _is_shadow_hba ? *(_rsp)->in_ptr :		\
3978 				rd_reg_dword_relaxed((_rsp)->rsp_q_in);	\
3979 	} while (0)
3980 
3981 	is_shadow_hba = IS_SHADOW_REG_CAPABLE(ha);
3982 
3983 	__update_rsp_in(is_shadow_hba, rsp, rsp_in);
3984 
3985 	while (rsp->ring_index != rsp_in &&
3986 		       rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3987 		pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3988 		cur_ring_index = rsp->ring_index;
3989 
3990 		rsp->ring_index++;
3991 		if (rsp->ring_index == rsp->length) {
3992 			rsp->ring_index = 0;
3993 			rsp->ring_ptr = rsp->ring;
3994 		} else {
3995 			rsp->ring_ptr++;
3996 		}
3997 
3998 		if (pkt->entry_status != 0) {
3999 			if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
4000 				goto process_err;
4001 
4002 			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
4003 			wmb();
4004 			continue;
4005 		}
4006 process_err:
4007 
4008 		switch (pkt->entry_type) {
4009 		case STATUS_TYPE:
4010 			qla2x00_status_entry(vha, rsp, pkt);
4011 			break;
4012 		case STATUS_CONT_TYPE:
4013 			qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
4014 			break;
4015 		case VP_RPT_ID_IOCB_TYPE:
4016 			qla24xx_report_id_acquisition(vha,
4017 			    (struct vp_rpt_id_entry_24xx *)pkt);
4018 			break;
4019 		case LOGINOUT_PORT_IOCB_TYPE:
4020 			qla24xx_logio_entry(vha, rsp->req,
4021 			    (struct logio_entry_24xx *)pkt);
4022 			break;
4023 		case CT_IOCB_TYPE:
4024 			qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
4025 			break;
4026 		case ELS_IOCB_TYPE:
4027 			qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
4028 			break;
4029 		case ABTS_RECV_24XX:
4030 			if (qla_ini_mode_enabled(vha)) {
4031 				pure_item = qla24xx_copy_std_pkt(vha, pkt);
4032 				if (!pure_item)
4033 					break;
4034 				qla24xx_queue_purex_item(vha, pure_item,
4035 							 qla24xx_process_abts);
4036 				break;
4037 			}
4038 			if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4039 			    IS_QLA28XX(ha)) {
4040 				/* ensure that the ATIO queue is empty */
4041 				qlt_handle_abts_recv(vha, rsp,
4042 				    (response_t *)pkt);
4043 				break;
4044 			} else {
4045 				qlt_24xx_process_atio_queue(vha, 1);
4046 			}
4047 			fallthrough;
4048 		case ABTS_RESP_24XX:
4049 		case CTIO_TYPE7:
4050 		case CTIO_CRC2:
4051 			qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
4052 			break;
4053 		case PT_LS4_REQUEST:
4054 			qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
4055 			    rsp->req);
4056 			break;
4057 		case NOTIFY_ACK_TYPE:
4058 			if (pkt->handle == QLA_TGT_SKIP_HANDLE)
4059 				qlt_response_pkt_all_vps(vha, rsp,
4060 				    (response_t *)pkt);
4061 			else
4062 				qla24xxx_nack_iocb_entry(vha, rsp->req,
4063 					(struct nack_to_isp *)pkt);
4064 			break;
4065 		case MARKER_TYPE:
4066 			qla_marker_iocb_entry(vha, rsp->req, (struct mrk_entry_24xx *)pkt);
4067 			break;
4068 		case ABORT_IOCB_TYPE:
4069 			qla24xx_abort_iocb_entry(vha, rsp->req,
4070 			    (struct abort_entry_24xx *)pkt);
4071 			break;
4072 		case MBX_IOCB_TYPE:
4073 			qla24xx_mbx_iocb_entry(vha, rsp->req,
4074 			    (struct mbx_24xx_entry *)pkt);
4075 			break;
4076 		case VP_CTRL_IOCB_TYPE:
4077 			qla_ctrlvp_completed(vha, rsp->req,
4078 			    (struct vp_ctrl_entry_24xx *)pkt);
4079 			break;
4080 		case PUREX_IOCB_TYPE:
4081 			purex_entry = (void *)pkt;
4082 			switch (purex_entry->els_frame_payload[3]) {
4083 			case ELS_RDP:
4084 				pure_item = qla24xx_copy_std_pkt(vha, pkt);
4085 				if (!pure_item)
4086 					break;
4087 				qla24xx_queue_purex_item(vha, pure_item,
4088 						 qla24xx_process_purex_rdp);
4089 				break;
4090 			case ELS_FPIN:
4091 				if (!vha->hw->flags.scm_enabled) {
4092 					ql_log(ql_log_warn, vha, 0x5094,
4093 					       "SCM not active for this port\n");
4094 					break;
4095 				}
4096 				pure_item = qla27xx_copy_fpin_pkt(vha,
4097 							  (void **)&pkt, &rsp);
4098 				__update_rsp_in(is_shadow_hba, rsp, rsp_in);
4099 				if (!pure_item)
4100 					break;
4101 				qla24xx_queue_purex_item(vha, pure_item,
4102 						 qla27xx_process_purex_fpin);
4103 				break;
4104 
4105 			case ELS_AUTH_ELS:
4106 				if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt, rsp_in)) {
4107 					/*
4108 					 * ring_ptr and ring_index were
4109 					 * pre-incremented above. Reset them
4110 					 * back to current. Wait for next
4111 					 * interrupt with all IOCBs to arrive
4112 					 * and re-process.
4113 					 */
4114 					rsp->ring_ptr = (response_t *)pkt;
4115 					rsp->ring_index = cur_ring_index;
4116 
4117 					ql_dbg(ql_dbg_init, vha, 0x5091,
4118 					    "Defer processing ELS opcode %#x...\n",
4119 					    purex_entry->els_frame_payload[3]);
4120 					return;
4121 				}
4122 				qla24xx_auth_els(vha, (void **)&pkt, &rsp);
4123 				break;
4124 			default:
4125 				ql_log(ql_log_warn, vha, 0x509c,
4126 				       "Discarding ELS Request opcode 0x%x\n",
4127 				       purex_entry->els_frame_payload[3]);
4128 			}
4129 			break;
4130 		case SA_UPDATE_IOCB_TYPE:
4131 			qla28xx_sa_update_iocb_entry(vha, rsp->req,
4132 				(struct sa_update_28xx *)pkt);
4133 			break;
4134 		case PT_LS4_UNSOL:
4135 			p = (void *)pkt;
4136 			if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt, rsp_in)) {
4137 				rsp->ring_ptr = (response_t *)pkt;
4138 				rsp->ring_index = cur_ring_index;
4139 
4140 				ql_dbg(ql_dbg_init, vha, 0x2124,
4141 				       "Defer processing UNSOL LS req opcode %#x...\n",
4142 				       p->payload[0]);
4143 				return;
4144 			}
4145 			qla2xxx_process_purls_iocb((void **)&pkt, &rsp);
4146 			break;
4147 		default:
4148 			/* Type Not Supported. */
4149 			ql_dbg(ql_dbg_async, vha, 0x5042,
4150 			       "Received unknown response pkt type 0x%x entry status=%x.\n",
4151 			       pkt->entry_type, pkt->entry_status);
4152 			break;
4153 		}
4154 		((response_t *)pkt)->signature = RESPONSE_PROCESSED;
4155 		wmb();
4156 	}
4157 
4158 	/* Adjust ring index */
4159 	if (IS_P3P_TYPE(ha)) {
4160 		struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
4161 
4162 		wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
4163 	} else {
4164 		wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
4165 	}
4166 }
4167 
4168 static void
qla2xxx_check_risc_status(scsi_qla_host_t * vha)4169 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
4170 {
4171 	int rval;
4172 	uint32_t cnt;
4173 	struct qla_hw_data *ha = vha->hw;
4174 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
4175 
4176 	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
4177 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4178 		return;
4179 
4180 	rval = QLA_SUCCESS;
4181 	wrt_reg_dword(&reg->iobase_addr, 0x7C00);
4182 	rd_reg_dword(&reg->iobase_addr);
4183 	wrt_reg_dword(&reg->iobase_window, 0x0001);
4184 	for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
4185 	    rval == QLA_SUCCESS; cnt--) {
4186 		if (cnt) {
4187 			wrt_reg_dword(&reg->iobase_window, 0x0001);
4188 			udelay(10);
4189 		} else
4190 			rval = QLA_FUNCTION_TIMEOUT;
4191 	}
4192 	if (rval == QLA_SUCCESS)
4193 		goto next_test;
4194 
4195 	rval = QLA_SUCCESS;
4196 	wrt_reg_dword(&reg->iobase_window, 0x0003);
4197 	for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
4198 	    rval == QLA_SUCCESS; cnt--) {
4199 		if (cnt) {
4200 			wrt_reg_dword(&reg->iobase_window, 0x0003);
4201 			udelay(10);
4202 		} else
4203 			rval = QLA_FUNCTION_TIMEOUT;
4204 	}
4205 	if (rval != QLA_SUCCESS)
4206 		goto done;
4207 
4208 next_test:
4209 	if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
4210 		ql_log(ql_log_info, vha, 0x504c,
4211 		    "Additional code -- 0x55AA.\n");
4212 
4213 done:
4214 	wrt_reg_dword(&reg->iobase_window, 0x0000);
4215 	rd_reg_dword(&reg->iobase_window);
4216 }
4217 
4218 /**
4219  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
4220  * @irq: interrupt number
4221  * @dev_id: SCSI driver HA context
4222  *
4223  * Called by system whenever the host adapter generates an interrupt.
4224  *
4225  * Returns handled flag.
4226  */
4227 irqreturn_t
qla24xx_intr_handler(int irq,void * dev_id)4228 qla24xx_intr_handler(int irq, void *dev_id)
4229 {
4230 	scsi_qla_host_t	*vha;
4231 	struct qla_hw_data *ha;
4232 	struct device_reg_24xx __iomem *reg;
4233 	int		status;
4234 	unsigned long	iter;
4235 	uint32_t	stat;
4236 	uint32_t	hccr;
4237 	uint16_t	mb[8];
4238 	struct rsp_que *rsp;
4239 	unsigned long	flags;
4240 	bool process_atio = false;
4241 
4242 	rsp = (struct rsp_que *) dev_id;
4243 	if (!rsp) {
4244 		ql_log(ql_log_info, NULL, 0x5059,
4245 		    "%s: NULL response queue pointer.\n", __func__);
4246 		return IRQ_NONE;
4247 	}
4248 
4249 	ha = rsp->hw;
4250 	reg = &ha->iobase->isp24;
4251 	status = 0;
4252 
4253 	if (unlikely(pci_channel_offline(ha->pdev)))
4254 		return IRQ_HANDLED;
4255 
4256 	spin_lock_irqsave(&ha->hardware_lock, flags);
4257 	vha = pci_get_drvdata(ha->pdev);
4258 	for (iter = 50; iter--; ) {
4259 		stat = rd_reg_dword(&reg->host_status);
4260 		if (qla2x00_check_reg32_for_disconnect(vha, stat))
4261 			break;
4262 		if (stat & HSRX_RISC_PAUSED) {
4263 			if (unlikely(pci_channel_offline(ha->pdev)))
4264 				break;
4265 
4266 			hccr = rd_reg_dword(&reg->hccr);
4267 
4268 			ql_log(ql_log_warn, vha, 0x504b,
4269 			    "RISC paused -- HCCR=%x, Dumping firmware.\n",
4270 			    hccr);
4271 
4272 			qla2xxx_check_risc_status(vha);
4273 
4274 			ha->isp_ops->fw_dump(vha);
4275 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4276 			break;
4277 		} else if ((stat & HSRX_RISC_INT) == 0)
4278 			break;
4279 
4280 		switch (stat & 0xff) {
4281 		case INTR_ROM_MB_SUCCESS:
4282 		case INTR_ROM_MB_FAILED:
4283 		case INTR_MB_SUCCESS:
4284 		case INTR_MB_FAILED:
4285 			qla24xx_mbx_completion(vha, MSW(stat));
4286 			status |= MBX_INTERRUPT;
4287 
4288 			break;
4289 		case INTR_ASYNC_EVENT:
4290 			mb[0] = MSW(stat);
4291 			mb[1] = rd_reg_word(&reg->mailbox1);
4292 			mb[2] = rd_reg_word(&reg->mailbox2);
4293 			mb[3] = rd_reg_word(&reg->mailbox3);
4294 			qla2x00_async_event(vha, rsp, mb);
4295 			break;
4296 		case INTR_RSP_QUE_UPDATE:
4297 		case INTR_RSP_QUE_UPDATE_83XX:
4298 			qla24xx_process_response_queue(vha, rsp);
4299 			break;
4300 		case INTR_ATIO_QUE_UPDATE_27XX:
4301 		case INTR_ATIO_QUE_UPDATE:
4302 			process_atio = true;
4303 			break;
4304 		case INTR_ATIO_RSP_QUE_UPDATE:
4305 			process_atio = true;
4306 			qla24xx_process_response_queue(vha, rsp);
4307 			break;
4308 		default:
4309 			ql_dbg(ql_dbg_async, vha, 0x504f,
4310 			    "Unrecognized interrupt type (%d).\n", stat * 0xff);
4311 			break;
4312 		}
4313 		wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4314 		rd_reg_dword_relaxed(&reg->hccr);
4315 		if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
4316 			ndelay(3500);
4317 	}
4318 	qla2x00_handle_mbx_completion(ha, status);
4319 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4320 
4321 	if (process_atio) {
4322 		spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4323 		qlt_24xx_process_atio_queue(vha, 0);
4324 		spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4325 	}
4326 
4327 	return IRQ_HANDLED;
4328 }
4329 
4330 static irqreturn_t
qla24xx_msix_rsp_q(int irq,void * dev_id)4331 qla24xx_msix_rsp_q(int irq, void *dev_id)
4332 {
4333 	struct qla_hw_data *ha;
4334 	struct rsp_que *rsp;
4335 	struct device_reg_24xx __iomem *reg;
4336 	struct scsi_qla_host *vha;
4337 	unsigned long flags;
4338 
4339 	rsp = (struct rsp_que *) dev_id;
4340 	if (!rsp) {
4341 		ql_log(ql_log_info, NULL, 0x505a,
4342 		    "%s: NULL response queue pointer.\n", __func__);
4343 		return IRQ_NONE;
4344 	}
4345 	ha = rsp->hw;
4346 	reg = &ha->iobase->isp24;
4347 
4348 	spin_lock_irqsave(&ha->hardware_lock, flags);
4349 
4350 	vha = pci_get_drvdata(ha->pdev);
4351 	qla24xx_process_response_queue(vha, rsp);
4352 	if (!ha->flags.disable_msix_handshake) {
4353 		wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4354 		rd_reg_dword_relaxed(&reg->hccr);
4355 	}
4356 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4357 
4358 	return IRQ_HANDLED;
4359 }
4360 
4361 static irqreturn_t
qla24xx_msix_default(int irq,void * dev_id)4362 qla24xx_msix_default(int irq, void *dev_id)
4363 {
4364 	scsi_qla_host_t	*vha;
4365 	struct qla_hw_data *ha;
4366 	struct rsp_que *rsp;
4367 	struct device_reg_24xx __iomem *reg;
4368 	int		status;
4369 	uint32_t	stat;
4370 	uint32_t	hccr;
4371 	uint16_t	mb[8];
4372 	unsigned long flags;
4373 	bool process_atio = false;
4374 
4375 	rsp = (struct rsp_que *) dev_id;
4376 	if (!rsp) {
4377 		ql_log(ql_log_info, NULL, 0x505c,
4378 		    "%s: NULL response queue pointer.\n", __func__);
4379 		return IRQ_NONE;
4380 	}
4381 	ha = rsp->hw;
4382 	reg = &ha->iobase->isp24;
4383 	status = 0;
4384 
4385 	spin_lock_irqsave(&ha->hardware_lock, flags);
4386 	vha = pci_get_drvdata(ha->pdev);
4387 	do {
4388 		stat = rd_reg_dword(&reg->host_status);
4389 		if (qla2x00_check_reg32_for_disconnect(vha, stat))
4390 			break;
4391 		if (stat & HSRX_RISC_PAUSED) {
4392 			if (unlikely(pci_channel_offline(ha->pdev)))
4393 				break;
4394 
4395 			hccr = rd_reg_dword(&reg->hccr);
4396 
4397 			ql_log(ql_log_info, vha, 0x5050,
4398 			    "RISC paused -- HCCR=%x, Dumping firmware.\n",
4399 			    hccr);
4400 
4401 			qla2xxx_check_risc_status(vha);
4402 			vha->hw_err_cnt++;
4403 
4404 			ha->isp_ops->fw_dump(vha);
4405 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4406 			break;
4407 		} else if ((stat & HSRX_RISC_INT) == 0)
4408 			break;
4409 
4410 		switch (stat & 0xff) {
4411 		case INTR_ROM_MB_SUCCESS:
4412 		case INTR_ROM_MB_FAILED:
4413 		case INTR_MB_SUCCESS:
4414 		case INTR_MB_FAILED:
4415 			qla24xx_mbx_completion(vha, MSW(stat));
4416 			status |= MBX_INTERRUPT;
4417 
4418 			break;
4419 		case INTR_ASYNC_EVENT:
4420 			mb[0] = MSW(stat);
4421 			mb[1] = rd_reg_word(&reg->mailbox1);
4422 			mb[2] = rd_reg_word(&reg->mailbox2);
4423 			mb[3] = rd_reg_word(&reg->mailbox3);
4424 			qla2x00_async_event(vha, rsp, mb);
4425 			break;
4426 		case INTR_RSP_QUE_UPDATE:
4427 		case INTR_RSP_QUE_UPDATE_83XX:
4428 			qla24xx_process_response_queue(vha, rsp);
4429 			break;
4430 		case INTR_ATIO_QUE_UPDATE_27XX:
4431 		case INTR_ATIO_QUE_UPDATE:
4432 			process_atio = true;
4433 			break;
4434 		case INTR_ATIO_RSP_QUE_UPDATE:
4435 			process_atio = true;
4436 			qla24xx_process_response_queue(vha, rsp);
4437 			break;
4438 		default:
4439 			ql_dbg(ql_dbg_async, vha, 0x5051,
4440 			    "Unrecognized interrupt type (%d).\n", stat & 0xff);
4441 			break;
4442 		}
4443 		wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4444 	} while (0);
4445 	qla2x00_handle_mbx_completion(ha, status);
4446 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4447 
4448 	if (process_atio) {
4449 		spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4450 		qlt_24xx_process_atio_queue(vha, 0);
4451 		spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4452 	}
4453 
4454 	return IRQ_HANDLED;
4455 }
4456 
4457 irqreturn_t
qla2xxx_msix_rsp_q(int irq,void * dev_id)4458 qla2xxx_msix_rsp_q(int irq, void *dev_id)
4459 {
4460 	struct qla_hw_data *ha;
4461 	struct qla_qpair *qpair;
4462 
4463 	qpair = dev_id;
4464 	if (!qpair) {
4465 		ql_log(ql_log_info, NULL, 0x505b,
4466 		    "%s: NULL response queue pointer.\n", __func__);
4467 		return IRQ_NONE;
4468 	}
4469 	ha = qpair->hw;
4470 
4471 	queue_work(ha->wq, &qpair->q_work);
4472 
4473 	return IRQ_HANDLED;
4474 }
4475 
4476 irqreturn_t
qla2xxx_msix_rsp_q_hs(int irq,void * dev_id)4477 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
4478 {
4479 	struct qla_hw_data *ha;
4480 	struct qla_qpair *qpair;
4481 	struct device_reg_24xx __iomem *reg;
4482 	unsigned long flags;
4483 
4484 	qpair = dev_id;
4485 	if (!qpair) {
4486 		ql_log(ql_log_info, NULL, 0x505b,
4487 		    "%s: NULL response queue pointer.\n", __func__);
4488 		return IRQ_NONE;
4489 	}
4490 	ha = qpair->hw;
4491 
4492 	reg = &ha->iobase->isp24;
4493 	spin_lock_irqsave(&ha->hardware_lock, flags);
4494 	wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4495 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4496 
4497 	queue_work(ha->wq, &qpair->q_work);
4498 
4499 	return IRQ_HANDLED;
4500 }
4501 
4502 /* Interrupt handling helpers. */
4503 
4504 struct qla_init_msix_entry {
4505 	const char *name;
4506 	irq_handler_t handler;
4507 };
4508 
4509 static const struct qla_init_msix_entry msix_entries[] = {
4510 	{ "default", qla24xx_msix_default },
4511 	{ "rsp_q", qla24xx_msix_rsp_q },
4512 	{ "atio_q", qla83xx_msix_atio_q },
4513 	{ "qpair_multiq", qla2xxx_msix_rsp_q },
4514 	{ "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
4515 };
4516 
4517 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
4518 	{ "qla2xxx (default)", qla82xx_msix_default },
4519 	{ "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
4520 };
4521 
4522 static int
qla24xx_enable_msix(struct qla_hw_data * ha,struct rsp_que * rsp)4523 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
4524 {
4525 	int i, ret;
4526 	struct qla_msix_entry *qentry;
4527 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4528 	int min_vecs = QLA_BASE_VECTORS;
4529 	struct irq_affinity desc = {
4530 		.pre_vectors = QLA_BASE_VECTORS,
4531 	};
4532 
4533 	if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4534 	    IS_ATIO_MSIX_CAPABLE(ha)) {
4535 		desc.pre_vectors++;
4536 		min_vecs++;
4537 	}
4538 
4539 	if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
4540 		/* user wants to control IRQ setting for target mode */
4541 		ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
4542 		    min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4543 		    PCI_IRQ_MSIX);
4544 	} else
4545 		ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
4546 		    min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4547 		    PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
4548 		    &desc);
4549 
4550 	if (ret < 0) {
4551 		ql_log(ql_log_fatal, vha, 0x00c7,
4552 		    "MSI-X: Failed to enable support, "
4553 		    "giving   up -- %d/%d.\n",
4554 		    ha->msix_count, ret);
4555 		goto msix_out;
4556 	} else if (ret < ha->msix_count) {
4557 		ql_log(ql_log_info, vha, 0x00c6,
4558 		    "MSI-X: Using %d vectors\n", ret);
4559 		ha->msix_count = ret;
4560 		/* Recalculate queue values */
4561 		if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
4562 			ha->max_req_queues = ha->msix_count - 1;
4563 
4564 			/* ATIOQ needs 1 vector. That's 1 less QPair */
4565 			if (QLA_TGT_MODE_ENABLED())
4566 				ha->max_req_queues--;
4567 
4568 			ha->max_rsp_queues = ha->max_req_queues;
4569 
4570 			ha->max_qpairs = ha->max_req_queues - 1;
4571 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
4572 			    "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
4573 		}
4574 	}
4575 	vha->irq_offset = desc.pre_vectors;
4576 	ha->msix_entries = kcalloc(ha->msix_count,
4577 				   sizeof(struct qla_msix_entry),
4578 				   GFP_KERNEL);
4579 	if (!ha->msix_entries) {
4580 		ql_log(ql_log_fatal, vha, 0x00c8,
4581 		    "Failed to allocate memory for ha->msix_entries.\n");
4582 		ret = -ENOMEM;
4583 		goto free_irqs;
4584 	}
4585 	ha->flags.msix_enabled = 1;
4586 
4587 	for (i = 0; i < ha->msix_count; i++) {
4588 		qentry = &ha->msix_entries[i];
4589 		qentry->vector = pci_irq_vector(ha->pdev, i);
4590 		qentry->vector_base0 = i;
4591 		qentry->entry = i;
4592 		qentry->have_irq = 0;
4593 		qentry->in_use = 0;
4594 		qentry->handle = NULL;
4595 	}
4596 
4597 	/* Enable MSI-X vectors for the base queue */
4598 	for (i = 0; i < QLA_BASE_VECTORS; i++) {
4599 		qentry = &ha->msix_entries[i];
4600 		qentry->handle = rsp;
4601 		rsp->msix = qentry;
4602 		scnprintf(qentry->name, sizeof(qentry->name),
4603 		    "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4604 		if (IS_P3P_TYPE(ha))
4605 			ret = request_irq(qentry->vector,
4606 				qla82xx_msix_entries[i].handler,
4607 				0, qla82xx_msix_entries[i].name, rsp);
4608 		else
4609 			ret = request_irq(qentry->vector,
4610 				msix_entries[i].handler,
4611 				0, qentry->name, rsp);
4612 		if (ret)
4613 			goto msix_register_fail;
4614 		qentry->have_irq = 1;
4615 		qentry->in_use = 1;
4616 	}
4617 
4618 	/*
4619 	 * If target mode is enable, also request the vector for the ATIO
4620 	 * queue.
4621 	 */
4622 	if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4623 	    IS_ATIO_MSIX_CAPABLE(ha)) {
4624 		qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4625 		rsp->msix = qentry;
4626 		qentry->handle = rsp;
4627 		scnprintf(qentry->name, sizeof(qentry->name),
4628 		    "qla2xxx%lu_%s", vha->host_no,
4629 		    msix_entries[QLA_ATIO_VECTOR].name);
4630 		qentry->in_use = 1;
4631 		ret = request_irq(qentry->vector,
4632 			msix_entries[QLA_ATIO_VECTOR].handler,
4633 			0, qentry->name, rsp);
4634 		qentry->have_irq = 1;
4635 	}
4636 
4637 msix_register_fail:
4638 	if (ret) {
4639 		ql_log(ql_log_fatal, vha, 0x00cb,
4640 		    "MSI-X: unable to register handler -- %x/%d.\n",
4641 		    qentry->vector, ret);
4642 		qla2x00_free_irqs(vha);
4643 		ha->mqenable = 0;
4644 		goto msix_out;
4645 	}
4646 
4647 	/* Enable MSI-X vector for response queue update for queue 0 */
4648 	if (IS_MQUE_CAPABLE(ha) &&
4649 	    (ha->msixbase && ha->mqiobase && ha->max_qpairs))
4650 		ha->mqenable = 1;
4651 	else
4652 		ha->mqenable = 0;
4653 
4654 	ql_dbg(ql_dbg_multiq, vha, 0xc005,
4655 	    "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4656 	    ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4657 	ql_dbg(ql_dbg_init, vha, 0x0055,
4658 	    "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4659 	    ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4660 
4661 msix_out:
4662 	return ret;
4663 
4664 free_irqs:
4665 	pci_free_irq_vectors(ha->pdev);
4666 	goto msix_out;
4667 }
4668 
4669 int
qla2x00_request_irqs(struct qla_hw_data * ha,struct rsp_que * rsp)4670 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4671 {
4672 	int ret = QLA_FUNCTION_FAILED;
4673 	device_reg_t *reg = ha->iobase;
4674 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4675 
4676 	/* If possible, enable MSI-X. */
4677 	if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4678 	    !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4679 	    !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4680 		goto skip_msi;
4681 
4682 	if (ql2xenablemsix == 2)
4683 		goto skip_msix;
4684 
4685 	if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4686 		(ha->pdev->subsystem_device == 0x7040 ||
4687 		ha->pdev->subsystem_device == 0x7041 ||
4688 		ha->pdev->subsystem_device == 0x1705)) {
4689 		ql_log(ql_log_warn, vha, 0x0034,
4690 		    "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4691 			ha->pdev->subsystem_vendor,
4692 			ha->pdev->subsystem_device);
4693 		goto skip_msi;
4694 	}
4695 
4696 	if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4697 		ql_log(ql_log_warn, vha, 0x0035,
4698 		    "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4699 		    ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4700 		goto skip_msix;
4701 	}
4702 
4703 	ret = qla24xx_enable_msix(ha, rsp);
4704 	if (!ret) {
4705 		ql_dbg(ql_dbg_init, vha, 0x0036,
4706 		    "MSI-X: Enabled (0x%X, 0x%X).\n",
4707 		    ha->chip_revision, ha->fw_attributes);
4708 		goto clear_risc_ints;
4709 	}
4710 
4711 skip_msix:
4712 
4713 	ql_log(ql_log_info, vha, 0x0037,
4714 	    "Falling back-to MSI mode -- ret=%d.\n", ret);
4715 
4716 	if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4717 	    !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4718 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4719 		goto skip_msi;
4720 
4721 	ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4722 	if (ret > 0) {
4723 		ql_dbg(ql_dbg_init, vha, 0x0038,
4724 		    "MSI: Enabled.\n");
4725 		ha->flags.msi_enabled = 1;
4726 	} else
4727 		ql_log(ql_log_warn, vha, 0x0039,
4728 		    "Falling back-to INTa mode -- ret=%d.\n", ret);
4729 skip_msi:
4730 
4731 	/* Skip INTx on ISP82xx. */
4732 	if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4733 		return QLA_FUNCTION_FAILED;
4734 
4735 	ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4736 	    ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4737 	    QLA2XXX_DRIVER_NAME, rsp);
4738 	if (ret) {
4739 		ql_log(ql_log_warn, vha, 0x003a,
4740 		    "Failed to reserve interrupt %d already in use.\n",
4741 		    ha->pdev->irq);
4742 		goto fail;
4743 	} else if (!ha->flags.msi_enabled) {
4744 		ql_dbg(ql_dbg_init, vha, 0x0125,
4745 		    "INTa mode: Enabled.\n");
4746 		ha->flags.mr_intr_valid = 1;
4747 		/* Set max_qpair to 0, as MSI-X and MSI in not enabled */
4748 		ha->max_qpairs = 0;
4749 	}
4750 
4751 clear_risc_ints:
4752 	if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4753 		goto fail;
4754 
4755 	spin_lock_irq(&ha->hardware_lock);
4756 	wrt_reg_word(&reg->isp.semaphore, 0);
4757 	spin_unlock_irq(&ha->hardware_lock);
4758 
4759 fail:
4760 	return ret;
4761 }
4762 
4763 void
qla2x00_free_irqs(scsi_qla_host_t * vha)4764 qla2x00_free_irqs(scsi_qla_host_t *vha)
4765 {
4766 	struct qla_hw_data *ha = vha->hw;
4767 	struct rsp_que *rsp;
4768 	struct qla_msix_entry *qentry;
4769 	int i;
4770 
4771 	/*
4772 	 * We need to check that ha->rsp_q_map is valid in case we are called
4773 	 * from a probe failure context.
4774 	 */
4775 	if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4776 		goto free_irqs;
4777 	rsp = ha->rsp_q_map[0];
4778 
4779 	if (ha->flags.msix_enabled) {
4780 		for (i = 0; i < ha->msix_count; i++) {
4781 			qentry = &ha->msix_entries[i];
4782 			if (qentry->have_irq) {
4783 				irq_set_affinity_notifier(qentry->vector, NULL);
4784 				free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4785 			}
4786 		}
4787 		kfree(ha->msix_entries);
4788 		ha->msix_entries = NULL;
4789 		ha->flags.msix_enabled = 0;
4790 		ql_dbg(ql_dbg_init, vha, 0x0042,
4791 			"Disabled MSI-X.\n");
4792 	} else {
4793 		free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4794 	}
4795 
4796 free_irqs:
4797 	pci_free_irq_vectors(ha->pdev);
4798 }
4799 
qla25xx_request_irq(struct qla_hw_data * ha,struct qla_qpair * qpair,struct qla_msix_entry * msix,int vector_type)4800 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4801 	struct qla_msix_entry *msix, int vector_type)
4802 {
4803 	const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4804 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4805 	int ret;
4806 
4807 	scnprintf(msix->name, sizeof(msix->name),
4808 	    "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4809 	ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4810 	if (ret) {
4811 		ql_log(ql_log_fatal, vha, 0x00e6,
4812 		    "MSI-X: Unable to register handler -- %x/%d.\n",
4813 		    msix->vector, ret);
4814 		return ret;
4815 	}
4816 	msix->have_irq = 1;
4817 	msix->handle = qpair;
4818 	qla_mapq_init_qp_cpu_map(ha, msix, qpair);
4819 	return ret;
4820 }
4821