Merge branch '5.11/scsi-fixes' into 5.12/scsi-queue

The UFS core has received a substantial rework this cycle. This in
turn has caused a merge conflict in linux-next. Merge 5.11/scsi-fixes
into 5.12/scsi-queue and resolve the conflict.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: martinkpetersen

Documentation/ABI/testing/sysfs-driver-ufs

@@ -916,21 +916,25 @@ Date:		September 2014
 Contact:	Subhash Jadavani <subhashj@codeaurora.org>
 Description:	This entry could be used to set or show the UFS device
 		runtime power management level. The current driver
-		implementation supports 6 levels with next target states:
+		implementation supports 7 levels with next target states:
 
 		==  ====================================================
-		0   an UFS device will stay active, an UIC link will
+		0   UFS device will stay active, UIC link will
 		    stay active
-		1   an UFS device will stay active, an UIC link will
+		1   UFS device will stay active, UIC link will
 		    hibernate
-		2   an UFS device will moved to sleep, an UIC link will
+		2   UFS device will be moved to sleep, UIC link will
 		    stay active
-		3   an UFS device will moved to sleep, an UIC link will
+		3   UFS device will be moved to sleep, UIC link will
 		    hibernate
-		4   an UFS device will be powered off, an UIC link will
+		4   UFS device will be powered off, UIC link will
 		    hibernate
-		5   an UFS device will be powered off, an UIC link will
+		5   UFS device will be powered off, UIC link will
 		    be powered off
+		6   UFS device will be moved to deep sleep, UIC link
+		    will be powered off. Note, deep sleep might not be
+		    supported in which case this value will not be
+		    accepted
 		==  ====================================================
 
 What:		/sys/bus/platform/drivers/ufshcd/*/rpm_target_dev_state
@@ -954,21 +958,25 @@ Date:		September 2014
 Contact:	Subhash Jadavani <subhashj@codeaurora.org>
 Description:	This entry could be used to set or show the UFS device
 		system power management level. The current driver
-		implementation supports 6 levels with next target states:
+		implementation supports 7 levels with next target states:
 
 		==  ====================================================
-		0   an UFS device will stay active, an UIC link will
+		0   UFS device will stay active, UIC link will
 		    stay active
-		1   an UFS device will stay active, an UIC link will
+		1   UFS device will stay active, UIC link will
 		    hibernate
-		2   an UFS device will moved to sleep, an UIC link will
+		2   UFS device will be moved to sleep, UIC link will
 		    stay active
-		3   an UFS device will moved to sleep, an UIC link will
+		3   UFS device will be moved to sleep, UIC link will
 		    hibernate
-		4   an UFS device will be powered off, an UIC link will
+		4   UFS device will be powered off, UIC link will
 		    hibernate
-		5   an UFS device will be powered off, an UIC link will
+		5   UFS device will be powered off, UIC link will
 		    be powered off
+		6   UFS device will be moved to deep sleep, UIC link
+		    will be powered off. Note, deep sleep might not be
+		    supported in which case this value will not be
+		    accepted
 		==  ====================================================
 
 What:		/sys/bus/platform/drivers/ufshcd/*/spm_target_dev_state

drivers/scsi/fnic/vnic_dev.c

@@ -444,7 +444,8 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
 	fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index);
 	if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone  */
 		pr_err("error in devcmd2 init");
-		return -ENODEV;
+		err = -ENODEV;
+		goto err_free_wq;
 	}
 
 	/*
@@ -460,7 +461,7 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
 	err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring,
 			DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE);
 	if (err)
-		goto err_free_wq;
+		goto err_disable_wq;
 
 	vdev->devcmd2->result =
 		(struct devcmd2_result *) vdev->devcmd2->results_ring.descs;
@@ -481,8 +482,9 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
 
 err_free_desc_ring:
 	vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring);
-err_free_wq:
+err_disable_wq:
 	vnic_wq_disable(&vdev->devcmd2->wq);
+err_free_wq:
 	vnic_wq_free(&vdev->devcmd2->wq);
 err_free_devcmd2:
 	kfree(vdev->devcmd2);

drivers/scsi/ibmvscsi/ibmvfc.c

@@ -1930,7 +1930,7 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
 		iu->pri_task_attr = IBMVFC_SIMPLE_TASK;
 	}
 
-	vfc_cmd->correlation = cpu_to_be64(evt);
+	vfc_cmd->correlation = cpu_to_be64((u64)evt);
 
 	if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev))))
 		return ibmvfc_send_event(evt, vhost, 0);
@@ -2707,7 +2707,7 @@ static int ibmvfc_abort_task_set(struct scsi_device *sdev)
 		tmf->flags = cpu_to_be16((IBMVFC_NO_MEM_DESC | IBMVFC_TMF));
 		evt->sync_iu = &rsp_iu;
 
-		tmf->correlation = cpu_to_be64(evt);
+		tmf->correlation = cpu_to_be64((u64)evt);
 
 		init_completion(&evt->comp);
 		rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout);
@@ -3296,8 +3296,10 @@ static int ibmvfc_slave_configure(struct scsi_device *sdev)
 	unsigned long flags = 0;
 
 	spin_lock_irqsave(shost->host_lock, flags);
-	if (sdev->type == TYPE_DISK)
+	if (sdev->type == TYPE_DISK) {
 		sdev->allow_restart = 1;
+		blk_queue_rq_timeout(sdev->request_queue, 120 * HZ);
+	}
 	spin_unlock_irqrestore(shost->host_lock, flags);
 	return 0;
 }

drivers/scsi/libfc/fc_exch.c

@@ -1623,8 +1623,13 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 		rc = fc_exch_done_locked(ep);
 		WARN_ON(fc_seq_exch(sp) != ep);
 		spin_unlock_bh(&ep->ex_lock);
-		if (!rc)
+		if (!rc) {
 			fc_exch_delete(ep);
+		} else {
+			FC_EXCH_DBG(ep, "ep is completed already,"
+					"hence skip calling the resp\n");
+			goto skip_resp;
+		}
 	}
 
 	/*
@@ -1643,6 +1648,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 	if (!fc_invoke_resp(ep, sp, fp))
 		fc_frame_free(fp);
 
+skip_resp:
 	fc_exch_release(ep);
 	return;
 rel:
@@ -1899,10 +1905,16 @@ static void fc_exch_reset(struct fc_exch *ep)
 
 	fc_exch_hold(ep);
 
-	if (!rc)
+	if (!rc) {
 		fc_exch_delete(ep);
+	} else {
+		FC_EXCH_DBG(ep, "ep is completed already,"
+				"hence skip calling the resp\n");
+		goto skip_resp;
+	}
 
 	fc_invoke_resp(ep, sp, ERR_PTR(-FC_EX_CLOSED));
+skip_resp:
 	fc_seq_set_resp(sp, NULL, ep->arg);
 	fc_exch_release(ep);
 }

drivers/scsi/megaraid/megaraid_sas_base.c

@@ -8244,11 +8244,9 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
 			goto out;
 		}
 
+		/* always store 64 bits regardless of addressing */
 		sense_ptr = (void *)cmd->frame + ioc->sense_off;
-		if (instance->consistent_mask_64bit)
-			put_unaligned_le64(sense_handle, sense_ptr);
-		else
-			put_unaligned_le32(sense_handle, sense_ptr);
+		put_unaligned_le64(sense_handle, sense_ptr);
 	}
 
 	/*

drivers/scsi/qla2xxx/qla_os.c

@@ -42,7 +42,7 @@ MODULE_PARM_DESC(ql2xfulldump_on_mpifail,
 int ql2xenforce_iocb_limit = 1;
 module_param(ql2xenforce_iocb_limit, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(ql2xenforce_iocb_limit,
-		 "Enforce IOCB throttling, to avoid FW congestion. (default: 0)");
+		 "Enforce IOCB throttling, to avoid FW congestion. (default: 1)");
 
 /*
  * CT6 CTX allocation cache

drivers/scsi/scsi_transport_srp.c

@@ -541,7 +541,14 @@ int srp_reconnect_rport(struct srp_rport *rport)
 	res = mutex_lock_interruptible(&rport->mutex);
 	if (res)
 		goto out;
-	scsi_target_block(&shost->shost_gendev);
+	if (rport->state != SRP_RPORT_FAIL_FAST)
+		/*
+		 * sdev state must be SDEV_TRANSPORT_OFFLINE, transition
+		 * to SDEV_BLOCK is illegal. Calling scsi_target_unblock()
+		 * later is ok though, scsi_internal_device_unblock_nowait()
+		 * treats SDEV_TRANSPORT_OFFLINE like SDEV_BLOCK.
+		 */
+		scsi_target_block(&shost->shost_gendev);
 	res = rport->state != SRP_RPORT_LOST ? i->f->reconnect(rport) : -ENODEV;
 	pr_debug("%s (state %d): transport.reconnect() returned %d\n",
 		 dev_name(&shost->shost_gendev), rport->state, res);

drivers/scsi/ufs/Kconfig

@@ -72,6 +72,7 @@ config SCSI_UFS_DWC_TC_PCI
 config SCSI_UFSHCD_PLATFORM
 	tristate "Platform bus based UFS Controller support"
 	depends on SCSI_UFSHCD
+	depends on HAS_IOMEM
 	help
 	  This selects the UFS host controller support. Select this if
 	  you have an UFS controller on Platform bus.

drivers/scsi/ufs/ufshcd.c

@@ -4030,6 +4030,8 @@ int ufshcd_link_recovery(struct ufs_hba *hba)
 	if (ret)
 		dev_err(hba->dev, "%s: link recovery failed, err %d",
 			__func__, ret);
+	else
+		ufshcd_clear_ua_wluns(hba);
 
 	return ret;
 }
@@ -5029,7 +5031,8 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 		break;
 	} /* end of switch */
 
-	if ((host_byte(result) != DID_OK) && !hba->silence_err_logs)
+	if ((host_byte(result) != DID_OK) &&
+	    (host_byte(result) != DID_REQUEUE) && !hba->silence_err_logs)
 		ufshcd_print_trs(hba, 1 << lrbp->task_tag, true);
 	return result;
 }
@@ -6037,6 +6040,9 @@ static void ufshcd_err_handler(struct work_struct *work)
 	ufshcd_scsi_unblock_requests(hba);
 	ufshcd_err_handling_unprepare(hba);
 	up(&hba->host_sem);
+
+	if (!err && needs_reset)
+		ufshcd_clear_ua_wluns(hba);
 }
 
 /**
@@ -6330,9 +6336,13 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba)
 		intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
 	}
 
-	if (enabled_intr_status && retval == IRQ_NONE) {
-		dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x\n",
-					__func__, intr_status);
+	if (enabled_intr_status && retval == IRQ_NONE &&
+				!ufshcd_eh_in_progress(hba)) {
+		dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n",
+					__func__,
+					intr_status,
+					hba->ufs_stats.last_intr_status,
+					enabled_intr_status);
 		ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, "host_regs: ");
 	}
 
@@ -6376,7 +6386,10 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	 * Even though we use wait_event() which sleeps indefinitely,
 	 * the maximum wait time is bounded by %TM_CMD_TIMEOUT.
 	 */
-	req = blk_get_request(q, REQ_OP_DRV_OUT, BLK_MQ_REQ_RESERVED);
+	req = blk_get_request(q, REQ_OP_DRV_OUT, 0);
+	if (IS_ERR(req))
+		return PTR_ERR(req);
+
 	req->end_io_data = &wait;
 	free_slot = req->tag;
 	WARN_ON_ONCE(free_slot < 0 || free_slot >= hba->nutmrs);
@@ -6973,14 +6986,11 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba)
 	ufshcd_set_clk_freq(hba, true);
 
 	err = ufshcd_hba_enable(hba);
-	if (err)
-		goto out;
 
 	/* Establish the link again and restore the device */
-	err = ufshcd_probe_hba(hba, false);
 	if (!err)
-		ufshcd_clear_ua_wluns(hba);
-out:
+		err = ufshcd_probe_hba(hba, false);
+
 	if (err)
 		dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err);
 	ufshcd_update_evt_hist(hba, UFS_EVT_HOST_RESET, (u32)err);
@@ -7747,6 +7757,8 @@ static int ufshcd_add_lus(struct ufs_hba *hba)
 	if (ret)
 		goto out;
 
+	ufshcd_clear_ua_wluns(hba);
+
 	/* Initialize devfreq after UFS device is detected */
 	if (ufshcd_is_clkscaling_supported(hba)) {
 		memcpy(&hba->clk_scaling.saved_pwr_info.info,
@@ -7948,8 +7960,6 @@ static void ufshcd_async_scan(void *data, async_cookie_t cookie)
 	if (ret) {
 		pm_runtime_put_sync(hba->dev);
 		ufshcd_hba_exit(hba);
-	} else {
-		ufshcd_clear_ua_wluns(hba);
 	}
 }
 
@@ -8805,6 +8815,7 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 
 	hba->clk_gating.is_suspended = false;
 	hba->dev_info.b_rpm_dev_flush_capable = false;
+	ufshcd_clear_ua_wluns(hba);
 	ufshcd_release(hba);
 out:
 	if (hba->dev_info.b_rpm_dev_flush_capable) {
@@ -8915,6 +8926,8 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		cancel_delayed_work(&hba->rpm_dev_flush_recheck_work);
 	}
 
+	ufshcd_clear_ua_wluns(hba);
+
 	/* Schedule clock gating in case of no access to UFS device yet */
 	ufshcd_release(hba);
 

drivers/target/iscsi/iscsi_target_login.c

@@ -896,7 +896,7 @@ int iscsit_setup_np(
 	else
 		len = sizeof(struct sockaddr_in);
 	/*
-	 * Set SO_REUSEADDR, and disable Nagel Algorithm with TCP_NODELAY.
+	 * Set SO_REUSEADDR, and disable Nagle Algorithm with TCP_NODELAY.
 	 */
 	if (np->np_network_transport == ISCSI_TCP)
 		tcp_sock_set_nodelay(sock->sk);