SCSI fixes on 20201212

Five small fixes: four in drivers: hisi_sas: fix internal queue
 timeout, be2iscsi: revert a prior fix causing problems, bnx2i: add
 missing dependency, storvsc: late arriving revert of a problem fix,
 and one in the core.  The core one is a minor change to stop paying
 attention to the busy count when returning out of resources because
 there's a race window where the queue might not restart due to missing
 returning I/O.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Five small fixes.  Four in drivers:

   - hisi_sas: fix internal queue timeout

   - be2iscsi: revert a prior fix causing problems

   - bnx2i: add missing dependency

   - storvsc: late arriving revert of a problem fix

  and one in the core.

  The core one is a minor change to stop paying attention to the busy
  count when returning out of resources because there's a race window
  where the queue might not restart due to missing returning I/O"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  Revert "scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callback()"
  scsi: hisi_sas: Select a suitable queue for internal I/Os
  scsi: core: Fix race between handling STS_RESOURCE and completion
  scsi: be2iscsi: Revert "Fix a theoretical leak in beiscsi_create_eqs()"
  scsi: bnx2i: Requires MMU

drivers/scsi/be2iscsi/be_main.c

@@ -3020,7 +3020,6 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
 			goto create_eq_error;
 		}
 
-		mem->dma = paddr;
 		mem->va = eq_vaddress;
 		ret = be_fill_queue(eq, phba->params.num_eq_entries,
 				    sizeof(struct be_eq_entry), eq_vaddress);
@@ -3030,6 +3029,7 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
 			goto create_eq_error;
 		}
 
+		mem->dma = paddr;
 		ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
 					    BEISCSI_EQ_DELAY_DEF);
 		if (ret) {
@@ -3086,7 +3086,6 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
 			goto create_cq_error;
 		}
 
-		mem->dma = paddr;
 		ret = be_fill_queue(cq, phba->params.num_cq_entries,
 				    sizeof(struct sol_cqe), cq_vaddress);
 		if (ret) {
@@ -3096,6 +3095,7 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
 			goto create_cq_error;
 		}
 
+		mem->dma = paddr;
 		ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false,
 					    false, 0);
 		if (ret) {

drivers/scsi/bnx2i/Kconfig

@@ -4,6 +4,7 @@ config SCSI_BNX2_ISCSI
 	depends on NET
 	depends on PCI
 	depends on (IPV6 || IPV6=n)
+	depends on MMU
 	select SCSI_ISCSI_ATTRS
 	select NETDEVICES
 	select ETHERNET

drivers/scsi/hisi_sas/hisi_sas_main.c

@@ -452,6 +452,12 @@ static int hisi_sas_task_prep(struct sas_task *task,
 		blk_tag = blk_mq_unique_tag(scmd->request);
 		dq_index = blk_mq_unique_tag_to_hwq(blk_tag);
 		*dq_pointer = dq = &hisi_hba->dq[dq_index];
+	} else if (hisi_hba->shost->nr_hw_queues)  {
+		struct Scsi_Host *shost = hisi_hba->shost;
+		struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
+		int queue = qmap->mq_map[raw_smp_processor_id()];
+
+		*dq_pointer = dq = &hisi_hba->dq[queue];
 	} else {
 		*dq_pointer = dq = sas_dev->dq;
 	}

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -2452,6 +2452,11 @@ static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba)
 			rc = -ENOENT;
 			goto free_irq_vectors;
 		}
+		cq->irq_mask = pci_irq_get_affinity(pdev, i + BASE_VECTORS_V3_HW);
+		if (!cq->irq_mask) {
+			dev_err(dev, "could not get cq%d irq affinity!\n", i);
+			return -ENOENT;
+		}
 	}
 
 	return 0;

drivers/scsi/scsi_lib.c

@@ -1703,8 +1703,7 @@ out_put_budget:
 		break;
 	case BLK_STS_RESOURCE:
 	case BLK_STS_ZONE_RESOURCE:
-		if (atomic_read(&sdev->device_busy) ||
-		    scsi_device_blocked(sdev))
+		if (scsi_device_blocked(sdev))
 			ret = BLK_STS_DEV_RESOURCE;
 		break;
 	default:

drivers/scsi/storvsc_drv.c

@@ -1246,11 +1246,6 @@ static void storvsc_on_channel_callback(void *context)
 		request = (struct storvsc_cmd_request *)
 			((unsigned long)desc->trans_id);
 
-		if (hv_pkt_datalen(desc) < sizeof(struct vstor_packet) - vmscsi_size_delta) {
-			dev_err(&device->device, "Invalid packet len\n");
-			continue;
-		}
-
 		if (request == &stor_device->init_request ||
 		    request == &stor_device->reset_request) {
 			memcpy(&request->vstor_packet, packet,