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hc
2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da 
 kernel/drivers/scsi/qla2xxx/qla_os.c
....@@ -879,8 +879,8 @@
879879 			goto qc24_fail_command;
880880 	}
881881 
882
-	if (!fcport) {
883
-		cmd->result = DID_NO_CONNECT << 16;
882
+	if (!fcport || fcport->deleted) {
883
+		cmd->result = DID_IMM_RETRY << 16;
884884 		goto qc24_fail_command;
885885 	}
886886 
....@@ -961,8 +961,15 @@
961961 		goto qc24_fail_command;
962962 	}
963963 
964
-	if (!fcport) {
964
+	if (!qpair->online) {
965
+		ql_dbg(ql_dbg_io, vha, 0x3077,
966
+		       "qpair not online. eeh_busy=%d.\n", ha->flags.eeh_busy);
965967 		cmd->result = DID_NO_CONNECT << 16;
968
+		goto qc24_fail_command;
969
+	}
970
+
971
+	if (!fcport || fcport->deleted) {
972
+		cmd->result = DID_IMM_RETRY << 16;
966973 		goto qc24_fail_command;
967974 	}
968975 
....@@ -1190,35 +1197,6 @@
11901197 	return return_status;
11911198 }
11921199 
1193
-#define ISP_REG_DISCONNECT 0xffffffffU
1194
-/**************************************************************************
1195
-* qla2x00_isp_reg_stat
1196
-*
1197
-* Description:
1198
-*	Read the host status register of ISP before aborting the command.
1199
-*
1200
-* Input:
1201
-*	ha = pointer to host adapter structure.
1202
-*
1203
-*
1204
-* Returns:
1205
-*	Either true or false.
1206
-*
1207
-* Note:	Return true if there is register disconnect.
1208
-**************************************************************************/
1209
-static inline
1210
-uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
1211
-{
1212
-	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1213
-	struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1214
-
1215
-	if (IS_P3P_TYPE(ha))
1216
-		return ((rd_reg_dword(&reg82->host_int)) == ISP_REG_DISCONNECT);
1217
-	else
1218
-		return ((rd_reg_dword(&reg->host_status)) ==
1219
-			ISP_REG_DISCONNECT);
1220
-}
1221
-
12221200 /**************************************************************************
12231201 * qla2xxx_eh_abort
12241202 *
....@@ -1253,6 +1231,7 @@
12531231 	if (qla2x00_isp_reg_stat(ha)) {
12541232 		ql_log(ql_log_info, vha, 0x8042,
12551233 		    "PCI/Register disconnect, exiting.\n");
1234
+		qla_pci_set_eeh_busy(vha);
12561235 		return FAILED;
12571236 	}
12581237 
....@@ -1444,6 +1423,7 @@
14441423 	if (qla2x00_isp_reg_stat(ha)) {
14451424 		ql_log(ql_log_info, vha, 0x803e,
14461425 		    "PCI/Register disconnect, exiting.\n");
1426
+		qla_pci_set_eeh_busy(vha);
14471427 		return FAILED;
14481428 	}
14491429 
....@@ -1460,6 +1440,7 @@
14601440 	if (qla2x00_isp_reg_stat(ha)) {
14611441 		ql_log(ql_log_info, vha, 0x803f,
14621442 		    "PCI/Register disconnect, exiting.\n");
1443
+		qla_pci_set_eeh_busy(vha);
14631444 		return FAILED;
14641445 	}
14651446 
....@@ -1495,6 +1476,7 @@
14951476 	if (qla2x00_isp_reg_stat(ha)) {
14961477 		ql_log(ql_log_info, vha, 0x8040,
14971478 		    "PCI/Register disconnect, exiting.\n");
1479
+		qla_pci_set_eeh_busy(vha);
14981480 		return FAILED;
14991481 	}
15001482 
....@@ -1572,7 +1554,7 @@
15721554 	if (qla2x00_isp_reg_stat(ha)) {
15731555 		ql_log(ql_log_info, vha, 0x8041,
15741556 		    "PCI/Register disconnect, exiting.\n");
1575
-		schedule_work(&ha->board_disable);
1557
+		qla_pci_set_eeh_busy(vha);
15761558 		return SUCCESS;
15771559 	}
15781560 
....@@ -1762,6 +1744,17 @@
17621744 	for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
17631745 		sp = req->outstanding_cmds[cnt];
17641746 		if (sp) {
1747
+			/*
1748
+			 * perform lockless completion during driver unload
1749
+			 */
1750
+			if (qla2x00_chip_is_down(vha)) {
1751
+				req->outstanding_cmds[cnt] = NULL;
1752
+				spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
1753
+				sp->done(sp, res);
1754
+				spin_lock_irqsave(qp->qp_lock_ptr, flags);
1755
+				continue;
1756
+			}
1757
+
17651758 			switch (sp->cmd_type) {
17661759 			case TYPE_SRB:
17671760 				qla2x00_abort_srb(qp, sp, res, &flags);
....@@ -2855,7 +2848,6 @@
28552848 	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
28562849 	atomic_set(&ha->num_pend_mbx_stage1, 0);
28572850 	atomic_set(&ha->num_pend_mbx_stage2, 0);
2858
-	atomic_set(&ha->num_pend_mbx_stage3, 0);
28592851 	atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
28602852 	ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
28612853 
....@@ -3130,6 +3122,13 @@
31303122 	host->max_id = ha->max_fibre_devices;
31313123 	host->cmd_per_lun = 3;
31323124 	host->unique_id = host->host_no;
3125
+
3126
+	if (ql2xenabledif && ql2xenabledif != 2) {
3127
+		ql_log(ql_log_warn, base_vha, 0x302d,
3128
+		       "Invalid value for ql2xenabledif, resetting it to default (2)\n");
3129
+		ql2xenabledif = 2;
3130
+	}
3131
+
31333132 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
31343133 		host->max_cmd_len = 32;
31353134 	else
....@@ -3362,8 +3361,6 @@
33623361 			base_vha->flags.difdix_supported = 1;
33633362 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
33643363 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
3365
-			if (ql2xenabledif == 1)
3366
-				prot = SHOST_DIX_TYPE0_PROTECTION;
33673364 			if (ql2xprotmask)
33683365 				scsi_host_set_prot(host, ql2xprotmask);
33693366 			else
....@@ -4866,7 +4863,8 @@
48664863 	}
48674864 	INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
48684865 
4869
-	sprintf(vha->host_str, "%s_%lu", QLA2XXX_DRIVER_NAME, vha->host_no);
4866
+	snprintf(vha->host_str, sizeof(vha->host_str), "%s_%lu",
4867
+		 QLA2XXX_DRIVER_NAME, vha->host_no);
48704868 	ql_dbg(ql_dbg_init, vha, 0x0041,
48714869 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
48724870 	    vha->host, vha->hw, vha,
....@@ -6660,6 +6658,9 @@
66606658 
66616659 		schedule();
66626660 
6661
+		if (test_and_clear_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags))
6662
+			qla_pci_set_eeh_busy(base_vha);
6663
+
66636664 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
66646665 			goto end_loop;
66656666 
....@@ -6899,9 +6900,12 @@
68996900 			}
69006901 		}
69016902 loop_resync_check:
6902
-		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
6903
+		if (!qla2x00_reset_active(base_vha) &&
6904
+		    test_and_clear_bit(LOOP_RESYNC_NEEDED,
69036905 		    &base_vha->dpc_flags)) {
6904
-
6906
+			/*
6907
+			 * Allow abort_isp to complete before moving on to scanning.
6908
+			 */
69056909 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
69066910 			    "Loop resync scheduled.\n");
69076911 
....@@ -6953,26 +6957,21 @@
69536957 			mutex_unlock(&ha->mq_lock);
69546958 		}
69556959 
6956
-		if (test_and_clear_bit(SET_NVME_ZIO_THRESHOLD_NEEDED,
6957
-		    &base_vha->dpc_flags)) {
6958
-			ql_log(ql_log_info, base_vha, 0xffffff,
6959
-				"nvme: SET ZIO Activity exchange threshold to %d.\n",
6960
-						ha->nvme_last_rptd_aen);
6961
-			if (qla27xx_set_zio_threshold(base_vha,
6962
-			    ha->nvme_last_rptd_aen)) {
6963
-				ql_log(ql_log_info, base_vha, 0xffffff,
6964
-				    "nvme: Unable to SET ZIO Activity exchange threshold to %d.\n",
6965
-				    ha->nvme_last_rptd_aen);
6966
-			}
6967
-		}
6968
-
69696960 		if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED,
6970
-		    &base_vha->dpc_flags)) {
6961
+				       &base_vha->dpc_flags)) {
6962
+			u16 threshold = ha->nvme_last_rptd_aen + ha->last_zio_threshold;
6963
+
6964
+			if (threshold > ha->orig_fw_xcb_count)
6965
+				threshold = ha->orig_fw_xcb_count;
6966
+
69716967 			ql_log(ql_log_info, base_vha, 0xffffff,
6972
-			    "SET ZIO Activity exchange threshold to %d.\n",
6973
-			    ha->last_zio_threshold);
6974
-			qla27xx_set_zio_threshold(base_vha,
6975
-			    ha->last_zio_threshold);
6968
+			       "SET ZIO Activity exchange threshold to %d.\n",
6969
+			       threshold);
6970
+			if (qla27xx_set_zio_threshold(base_vha, threshold)) {
6971
+				ql_log(ql_log_info, base_vha, 0xffffff,
6972
+				       "Unable to SET ZIO Activity exchange threshold to %d.\n",
6973
+				       threshold);
6974
+			}
69766975 		}
69776976 
69786977 		if (!IS_QLAFX00(ha))
....@@ -7145,7 +7144,7 @@
71457144 
71467145 		/* if the loop has been down for 4 minutes, reinit adapter */
71477146 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
7148
-			if (!(vha->device_flags & DFLG_NO_CABLE)) {
7147
+			if (!(vha->device_flags & DFLG_NO_CABLE) && !vha->vp_idx) {
71497148 				ql_log(ql_log_warn, vha, 0x6009,
71507149 				    "Loop down - aborting ISP.\n");
71517150 
....@@ -7190,14 +7189,13 @@
71907189 	index = atomic_read(&ha->nvme_active_aen_cnt);
71917190 	if (!vha->vp_idx &&
71927191 	    (index != ha->nvme_last_rptd_aen) &&
7193
-	    (index >= DEFAULT_ZIO_THRESHOLD) &&
71947192 	    ha->zio_mode == QLA_ZIO_MODE_6 &&
71957193 	    !ha->flags.host_shutting_down) {
7194
+		ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
71967195 		ql_log(ql_log_info, vha, 0x3002,
71977196 		    "nvme: Sched: Set ZIO exchange threshold to %d.\n",
71987197 		    ha->nvme_last_rptd_aen);
7199
-		ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
7200
-		set_bit(SET_NVME_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7198
+		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
72017199 		start_dpc++;
72027200 	}
72037201 
....@@ -7370,6 +7368,8 @@
73707368 	int i;
73717369 	unsigned long flags;
73727370 
7371
+	ql_dbg(ql_dbg_aer, vha, 0x9000,
7372
+	       "%s\n", __func__);
73737373 	ha->chip_reset++;
73747374 
73757375 	ha->base_qpair->chip_reset = ha->chip_reset;
....@@ -7379,28 +7379,16 @@
73797379 			    ha->base_qpair->chip_reset;
73807380 	}
73817381 
7382
-	/* purge MBox commands */
7383
-	if (atomic_read(&ha->num_pend_mbx_stage3)) {
7384
-		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
7385
-		complete(&ha->mbx_intr_comp);
7386
-	}
7387
-
7388
-	i = 0;
7389
-
7390
-	while (atomic_read(&ha->num_pend_mbx_stage3) ||
7391
-	    atomic_read(&ha->num_pend_mbx_stage2) ||
7392
-	    atomic_read(&ha->num_pend_mbx_stage1)) {
7393
-		msleep(20);
7394
-		i++;
7395
-		if (i > 50)
7396
-			break;
7397
-	}
7398
-
7399
-	ha->flags.purge_mbox = 0;
7382
+	/*
7383
+	 * purge mailbox might take a while. Slot Reset/chip reset
7384
+	 * will take care of the purge
7385
+	 */
74007386 
74017387 	mutex_lock(&ha->mq_lock);
7388
+	ha->base_qpair->online = 0;
74027389 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
74037390 		qpair->online = 0;
7391
+	wmb();
74047392 	mutex_unlock(&ha->mq_lock);
74057393 
74067394 	qla2x00_mark_all_devices_lost(vha);
....@@ -7437,14 +7425,17 @@
74377425 {
74387426 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
74397427 	struct qla_hw_data *ha = vha->hw;
7428
+	pci_ers_result_t ret = PCI_ERS_RESULT_NEED_RESET;
74407429 
7441
-	ql_dbg(ql_dbg_aer, vha, 0x9000,
7442
-	    "PCI error detected, state %x.\n", state);
7430
+	ql_log(ql_log_warn, vha, 0x9000,
7431
+	       "PCI error detected, state %x.\n", state);
7432
+	ha->pci_error_state = QLA_PCI_ERR_DETECTED;
74437433 
74447434 	if (!atomic_read(&pdev->enable_cnt)) {
74457435 		ql_log(ql_log_info, vha, 0xffff,
74467436 			"PCI device is disabled,state %x\n", state);
7447
-		return PCI_ERS_RESULT_NEED_RESET;
7437
+		ret = PCI_ERS_RESULT_NEED_RESET;
7438
+		goto out;
74487439 	}
74497440 
74507441 	switch (state) {
....@@ -7454,11 +7445,12 @@
74547445 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
74557446 			qla2xxx_wake_dpc(vha);
74567447 		}
7457
-		return PCI_ERS_RESULT_CAN_RECOVER;
7448
+		ret = PCI_ERS_RESULT_CAN_RECOVER;
7449
+		break;
74587450 	case pci_channel_io_frozen:
7459
-		ha->flags.eeh_busy = 1;
7460
-		qla_pci_error_cleanup(vha);
7461
-		return PCI_ERS_RESULT_NEED_RESET;
7451
+		qla_pci_set_eeh_busy(vha);
7452
+		ret = PCI_ERS_RESULT_NEED_RESET;
7453
+		break;
74627454 	case pci_channel_io_perm_failure:
74637455 		ha->flags.pci_channel_io_perm_failure = 1;
74647456 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
....@@ -7466,9 +7458,12 @@
74667458 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
74677459 			qla2xxx_wake_dpc(vha);
74687460 		}
7469
-		return PCI_ERS_RESULT_DISCONNECT;
7461
+		ret = PCI_ERS_RESULT_DISCONNECT;
74707462 	}
7471
-	return PCI_ERS_RESULT_NEED_RESET;
7463
+out:
7464
+	ql_dbg(ql_dbg_aer, vha, 0x600d,
7465
+	       "PCI error detected returning [%x].\n", ret);
7466
+	return ret;
74727467 }
74737468 
74747469 static pci_ers_result_t
....@@ -7482,6 +7477,10 @@
74827477 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
74837478 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
74847479 
7480
+	ql_log(ql_log_warn, base_vha, 0x9000,
7481
+	       "mmio enabled\n");
7482
+
7483
+	ha->pci_error_state = QLA_PCI_MMIO_ENABLED;
74857484 	if (IS_QLA82XX(ha))
74867485 		return PCI_ERS_RESULT_RECOVERED;
74877486 
....@@ -7505,10 +7504,11 @@
75057504 		ql_log(ql_log_info, base_vha, 0x9003,
75067505 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
75077506 		qla2xxx_dump_fw(base_vha);
7508
-
7509
-		return PCI_ERS_RESULT_NEED_RESET;
7510
-	} else
7511
-		return PCI_ERS_RESULT_RECOVERED;
7507
+	}
7508
+	/* set PCI_ERS_RESULT_NEED_RESET to trigger call to qla2xxx_pci_slot_reset */
7509
+	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7510
+	       "mmio enabled returning.\n");
7511
+	return PCI_ERS_RESULT_NEED_RESET;
75127512 }
75137513 
75147514 static pci_ers_result_t
....@@ -7520,9 +7520,10 @@
75207520 	int rc;
75217521 	struct qla_qpair *qpair = NULL;
75227522 
7523
-	ql_dbg(ql_dbg_aer, base_vha, 0x9004,
7524
-	    "Slot Reset.\n");
7523
+	ql_log(ql_log_warn, base_vha, 0x9004,
7524
+	       "Slot Reset.\n");
75257525 
7526
+	ha->pci_error_state = QLA_PCI_SLOT_RESET;
75267527 	/* Workaround: qla2xxx driver which access hardware earlier
75277528 	 * needs error state to be pci_channel_io_online.
75287529 	 * Otherwise mailbox command timesout.
....@@ -7556,16 +7557,24 @@
75567557 		qpair->online = 1;
75577558 	mutex_unlock(&ha->mq_lock);
75587559 
7560
+	ha->flags.eeh_busy = 0;
75597561 	base_vha->flags.online = 1;
75607562 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7561
-	if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
7562
-		ret =  PCI_ERS_RESULT_RECOVERED;
7563
+	ha->isp_ops->abort_isp(base_vha);
75637564 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
75647565 
7566
+	if (qla2x00_isp_reg_stat(ha)) {
7567
+		ha->flags.eeh_busy = 1;
7568
+		qla_pci_error_cleanup(base_vha);
7569
+		ql_log(ql_log_warn, base_vha, 0x9005,
7570
+		       "Device unable to recover from PCI error.\n");
7571
+	} else {
7572
+		ret =  PCI_ERS_RESULT_RECOVERED;
7573
+	}
75657574 
75667575 exit_slot_reset:
75677576 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
7568
-	    "slot_reset return %x.\n", ret);
7577
+	    "Slot Reset returning %x.\n", ret);
75697578 
75707579 	return ret;
75717580 }
....@@ -7577,16 +7586,55 @@
75777586 	struct qla_hw_data *ha = base_vha->hw;
75787587 	int ret;
75797588 
7580
-	ql_dbg(ql_dbg_aer, base_vha, 0x900f,
7581
-	    "pci_resume.\n");
7589
+	ql_log(ql_log_warn, base_vha, 0x900f,
7590
+	       "Pci Resume.\n");
75827591 
7583
-	ha->flags.eeh_busy = 0;
75847592 
75857593 	ret = qla2x00_wait_for_hba_online(base_vha);
75867594 	if (ret != QLA_SUCCESS) {
75877595 		ql_log(ql_log_fatal, base_vha, 0x9002,
75887596 		    "The device failed to resume I/O from slot/link_reset.\n");
75897597 	}
7598
+	ha->pci_error_state = QLA_PCI_RESUME;
7599
+	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7600
+	       "Pci Resume returning.\n");
7601
+}
7602
+
7603
+void qla_pci_set_eeh_busy(struct scsi_qla_host *vha)
7604
+{
7605
+	struct qla_hw_data *ha = vha->hw;
7606
+	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7607
+	bool do_cleanup = false;
7608
+	unsigned long flags;
7609
+
7610
+	if (ha->flags.eeh_busy)
7611
+		return;
7612
+
7613
+	spin_lock_irqsave(&base_vha->work_lock, flags);
7614
+	if (!ha->flags.eeh_busy) {
7615
+		ha->flags.eeh_busy = 1;
7616
+		do_cleanup = true;
7617
+	}
7618
+	spin_unlock_irqrestore(&base_vha->work_lock, flags);
7619
+
7620
+	if (do_cleanup)
7621
+		qla_pci_error_cleanup(base_vha);
7622
+}
7623
+
7624
+/*
7625
+ * this routine will schedule a task to pause IO from interrupt context
7626
+ * if caller sees a PCIE error event (register read = 0xf's)
7627
+ */
7628
+void qla_schedule_eeh_work(struct scsi_qla_host *vha)
7629
+{
7630
+	struct qla_hw_data *ha = vha->hw;
7631
+	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7632
+
7633
+	if (ha->flags.eeh_busy)
7634
+		return;
7635
+
7636
+	set_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags);
7637
+	qla2xxx_wake_dpc(base_vha);
75907638 }
75917639 
75927640 static void