SCSI fixes on 20230618

Four fixes, all in drivers: three fairly obvious small ones and a
 large one in aacraid to add block queue completion mapping and fix a
 CPU offline hang.
 
 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:
 "Four fixes, all in drivers: three fairly obvious small ones and a
  large one in aacraid to add block queue completion mapping and fix a
  CPU offline hang"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: lpfc: Fix incorrect big endian type assignment in bsg loopback path
  scsi: target: core: Fix error path in target_setup_session()
  scsi: storvsc: Always set no_report_opcodes
  scsi: aacraid: Reply queue mapping to CPUs based on IRQ affinity

drivers/scsi/aacraid/aacraid.h

@@ -1678,6 +1678,7 @@ struct aac_dev
 	u32			handle_pci_error;
 	bool			init_reset;
 	u8			soft_reset_support;
+	u8			use_map_queue;
 };
 
 #define aac_adapter_interrupt(dev) \

drivers/scsi/aacraid/commsup.c

@@ -223,8 +223,12 @@ int aac_fib_setup(struct aac_dev * dev)
 struct fib *aac_fib_alloc_tag(struct aac_dev *dev, struct scsi_cmnd *scmd)
 {
 	struct fib *fibptr;
+	u32 blk_tag;
+	int i;
 
-	fibptr = &dev->fibs[scsi_cmd_to_rq(scmd)->tag];
+	blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
+	i = blk_mq_unique_tag_to_tag(blk_tag);
+	fibptr = &dev->fibs[i];
 	/*
 	 *	Null out fields that depend on being zero at the start of
 	 *	each I/O

drivers/scsi/aacraid/linit.c

@@ -19,6 +19,7 @@
 
 #include <linux/compat.h>
 #include <linux/blkdev.h>
+#include <linux/blk-mq-pci.h>
 #include <linux/completion.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
@@ -504,6 +505,15 @@ common_config:
 	return 0;
 }
 
+static void aac_map_queues(struct Scsi_Host *shost)
+{
+	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
+
+	blk_mq_pci_map_queues(&shost->tag_set.map[HCTX_TYPE_DEFAULT],
+			      aac->pdev, 0);
+	aac->use_map_queue = true;
+}
+
 /**
  *	aac_change_queue_depth		-	alter queue depths
  *	@sdev:	SCSI device we are considering
@@ -1488,6 +1498,7 @@ static const struct scsi_host_template aac_driver_template = {
 	.bios_param			= aac_biosparm,
 	.shost_groups			= aac_host_groups,
 	.slave_configure		= aac_slave_configure,
+	.map_queues			= aac_map_queues,
 	.change_queue_depth		= aac_change_queue_depth,
 	.sdev_groups			= aac_dev_groups,
 	.eh_abort_handler		= aac_eh_abort,
@@ -1775,6 +1786,8 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	shost->max_lun = AAC_MAX_LUN;
 
 	pci_set_drvdata(pdev, shost);
+	shost->nr_hw_queues = aac->max_msix;
+	shost->host_tagset = 1;
 
 	error = scsi_add_host(shost, &pdev->dev);
 	if (error)
@@ -1906,6 +1919,7 @@ static void aac_remove_one(struct pci_dev *pdev)
 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
 
 	aac_cancel_rescan_worker(aac);
+	aac->use_map_queue = false;
 	scsi_remove_host(shost);
 
 	__aac_shutdown(aac);

drivers/scsi/aacraid/src.c

@@ -493,6 +493,10 @@ static int aac_src_deliver_message(struct fib *fib)
 #endif
 
 	u16 vector_no;
+	struct scsi_cmnd *scmd;
+	u32 blk_tag;
+	struct Scsi_Host *shost = dev->scsi_host_ptr;
+	struct blk_mq_queue_map *qmap;
 
 	atomic_inc(&q->numpending);
 
@@ -505,8 +509,25 @@ static int aac_src_deliver_message(struct fib *fib)
 		if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE3)
 			&& dev->sa_firmware)
 			vector_no = aac_get_vector(dev);
-		else
-			vector_no = fib->vector_no;
+		else {
+			if (!fib->vector_no || !fib->callback_data) {
+				if (shost && dev->use_map_queue) {
+					qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
+					vector_no = qmap->mq_map[raw_smp_processor_id()];
+				}
+				/*
+				 *	We hardcode the vector_no for
+				 *	reserved commands as a valid shost is
+				 *	absent during the init
+				 */
+				else
+					vector_no = 0;
+			} else {
+				scmd = (struct scsi_cmnd *)fib->callback_data;
+				blk_tag = blk_mq_unique_tag(scsi_cmd_to_rq(scmd));
+				vector_no = blk_mq_unique_tag_to_hwq(blk_tag);
+			}
+		}
 
 		if (native_hba) {
 			if (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF) {

drivers/scsi/lpfc/lpfc_bsg.c

@@ -889,7 +889,7 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 			struct lpfc_iocbq *piocbq)
 {
 	uint32_t evt_req_id = 0;
-	uint32_t cmd;
+	u16 cmd;
 	struct lpfc_dmabuf *dmabuf = NULL;
 	struct lpfc_bsg_event *evt;
 	struct event_data *evt_dat = NULL;
@@ -915,7 +915,7 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 
 	ct_req = (struct lpfc_sli_ct_request *)bdeBuf1->virt;
 	evt_req_id = ct_req->FsType;
-	cmd = ct_req->CommandResponse.bits.CmdRsp;
+	cmd = be16_to_cpu(ct_req->CommandResponse.bits.CmdRsp);
 
 	spin_lock_irqsave(&phba->ct_ev_lock, flags);
 	list_for_each_entry(evt, &phba->ct_ev_waiters, node) {
@@ -3186,8 +3186,8 @@ lpfc_bsg_diag_loopback_run(struct bsg_job *job)
 			ctreq->RevisionId.bits.InId = 0;
 			ctreq->FsType = SLI_CT_ELX_LOOPBACK;
 			ctreq->FsSubType = 0;
-			ctreq->CommandResponse.bits.CmdRsp = ELX_LOOPBACK_DATA;
-			ctreq->CommandResponse.bits.Size   = size;
+			ctreq->CommandResponse.bits.CmdRsp = cpu_to_be16(ELX_LOOPBACK_DATA);
+			ctreq->CommandResponse.bits.Size   = cpu_to_be16(size);
 			segment_offset = ELX_LOOPBACK_HEADER_SZ;
 		} else
 			segment_offset = 0;

drivers/scsi/storvsc_drv.c

@@ -1567,6 +1567,8 @@ static int storvsc_device_configure(struct scsi_device *sdevice)
 {
 	blk_queue_rq_timeout(sdevice->request_queue, (storvsc_timeout * HZ));
 
+	/* storvsc devices don't support MAINTENANCE_IN SCSI cmd */
+	sdevice->no_report_opcodes = 1;
 	sdevice->no_write_same = 1;
 
 	/*

drivers/target/target_core_transport.c

@@ -504,6 +504,8 @@ target_setup_session(struct se_portal_group *tpg,
 
 free_sess:
 	transport_free_session(sess);
+	return ERR_PTR(rc);
+
 free_cnt:
 	target_free_cmd_counter(cmd_cnt);
 	return ERR_PTR(rc);