Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, qla2xx, target, lpfc, smartpqi,
  mpi3mr).

  The main driver change that might cause issues on down the road is the
  conversion of some of our oldest surviving drivers to the DMA API
  (should only affect m68k).

  The only major core change is the rework of async resume; the rest are
  either completely trivial or for updating deprecated APIs"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits)
  scsi: target: Remove XDWRITEREAD emulated support
  scsi: megaraid: Remove the static variable initialisation
  scsi: ch: Do not initialise statics to 0
  scsi: ufs: core: Fix spelling mistake "Cannnot" -> "Cannot"
  scsi: target: iscsi: Do not require target authentication
  scsi: target: iscsi: Allow AuthMethod=None
  scsi: target: iscsi: Support base64 in CHAP
  scsi: target: iscsi: Add support for extended CDB AHS
  scsi: ufs: dt-bindings: Add SC8280XP binding
  scsi: target: iscsi: Fix clang -Wformat warnings
  scsi: ufs: core: Read device property for ref clock
  scsi: libsas: Resume SAS host for phy reset or enable via sysfs
  scsi: hisi_sas: Modify v3 HW SATA completion error processing
  scsi: hisi_sas: Relocate DMA unmap of SMP task
  scsi: hisi_sas: Remove unnecessary variable to hold DMA map elements
  scsi: hisi_sas: Call hisi_sas_slave_configure() from slave_configure_v3_hw()
  scsi: mpi3mr: Delete a stray tab
  scsi: mpi3mr: Unlock on error path
  scsi: mpi3mr: Reduce VD queue depth on detecting throttling
  scsi: mpi3mr: Resource Based Metering
  ...

1 files changed, 49 insertions, 24 deletions

diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 01f2f41928eb..a0028e130a7e 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -56,7 +56,7 @@ MODULE_PARM_DESC(link_rate, "Enable link rate.\n"
 		" 8: Link rate 12.0G\n");
 
 static struct scsi_transport_template *pm8001_stt;
-static int pm8001_init_ccb_tag(struct pm8001_hba_info *, struct Scsi_Host *, struct pci_dev *);
+static int pm8001_init_ccb_tag(struct pm8001_hba_info *);
 
 /*
  * chip info structure to identify chip key functionality as
@@ -81,6 +81,18 @@ LIST_HEAD(hba_list);
 
 struct workqueue_struct *pm8001_wq;
 
+static int pm8001_map_queues(struct Scsi_Host *shost)
+{
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
+	struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
+
+	if (pm8001_ha->number_of_intr > 1)
+		blk_mq_pci_map_queues(qmap, pm8001_ha->pdev, 1);
+
+	return blk_mq_map_queues(qmap);
+}
+
 /*
  * The main structure which LLDD must register for scsi core.
  */
@@ -109,6 +121,8 @@ static struct scsi_host_template pm8001_sht = {
 #endif
 	.shost_groups		= pm8001_host_groups,
 	.track_queue_depth	= 1,
+	.cmd_per_lun		= 32,
+	.map_queues		= pm8001_map_queues,
 };
 
 /*
@@ -607,12 +621,8 @@ static int pm8001_prep_sas_ha_init(struct Scsi_Host *shost,
 
 	shost->transportt = pm8001_stt;
 	shost->max_id = PM8001_MAX_DEVICES;
-	shost->max_lun = 8;
-	shost->max_channel = 0;
 	shost->unique_id = pm8001_id;
 	shost->max_cmd_len = 16;
-	shost->can_queue = PM8001_CAN_QUEUE;
-	shost->cmd_per_lun = 32;
 	return 0;
 exit_free1:
 	kfree(arr_port);
@@ -933,31 +943,35 @@ static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha)
  */
 static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 {
-	u32 number_of_intr;
-	int rc, cpu_online_count;
 	unsigned int allocated_irq_vectors;
+	int rc;
 
 	/* SPCv controllers supports 64 msi-x */
 	if (pm8001_ha->chip_id == chip_8001) {
-		number_of_intr = 1;
+		rc = pci_alloc_irq_vectors(pm8001_ha->pdev, 1, 1,
+					   PCI_IRQ_MSIX);
 	} else {
-		number_of_intr = PM8001_MAX_MSIX_VEC;
+		/*
+		 * Queue index #0 is used always for housekeeping, so don't
+		 * include in the affinity spreading.
+		 */
+		struct irq_affinity desc = {
+			.pre_vectors = 1,
+		};
+		rc = pci_alloc_irq_vectors_affinity(
+				pm8001_ha->pdev, 2, PM8001_MAX_MSIX_VEC,
+				PCI_IRQ_MSIX | PCI_IRQ_AFFINITY, &desc);
 	}
 
-	cpu_online_count = num_online_cpus();
-	number_of_intr = min_t(int, cpu_online_count, number_of_intr);
-	rc = pci_alloc_irq_vectors(pm8001_ha->pdev, number_of_intr,
-			number_of_intr, PCI_IRQ_MSIX);
 	allocated_irq_vectors = rc;
 	if (rc < 0)
 		return rc;
 
 	/* Assigns the number of interrupts */
-	number_of_intr = min_t(int, allocated_irq_vectors, number_of_intr);
-	pm8001_ha->number_of_intr = number_of_intr;
+	pm8001_ha->number_of_intr = allocated_irq_vectors;
 
 	/* Maximum queue number updating in HBA structure */
-	pm8001_ha->max_q_num = number_of_intr;
+	pm8001_ha->max_q_num = allocated_irq_vectors;
 
 	pm8001_dbg(pm8001_ha, INIT,
 		   "pci_alloc_irq_vectors request ret:%d no of intr %d\n",
@@ -1124,10 +1138,23 @@ static int pm8001_pci_probe(struct pci_dev *pdev,
 		goto err_out_ha_free;
 	}
 
-	rc = pm8001_init_ccb_tag(pm8001_ha, shost, pdev);
+	rc = pm8001_init_ccb_tag(pm8001_ha);
 	if (rc)
 		goto err_out_enable;
 
+
+	PM8001_CHIP_DISP->chip_post_init(pm8001_ha);
+
+	if (pm8001_ha->number_of_intr > 1) {
+		shost->nr_hw_queues = pm8001_ha->number_of_intr - 1;
+		/*
+		 * For now, ensure we're not sent too many commands by setting
+		 * host_tagset. This is also required if we start using request
+		 * tag.
+		 */
+		shost->host_tagset = 1;
+	}
+
 	rc = scsi_add_host(shost, &pdev->dev);
 	if (rc)
 		goto err_out_ha_free;
@@ -1177,16 +1204,14 @@ err_out_enable:
 /**
  * pm8001_init_ccb_tag - allocate memory to CCB and tag.
  * @pm8001_ha: our hba card information.
- * @shost: scsi host which has been allocated outside.
- * @pdev: pci device.
  */
-static int
-pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha, struct Scsi_Host *shost,
-			struct pci_dev *pdev)
+static int pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha)
 {
-	int i = 0;
+	struct Scsi_Host *shost = pm8001_ha->shost;
+	struct device *dev = pm8001_ha->dev;
 	u32 max_out_io, ccb_count;
 	u32 can_queue;
+	int i;
 
 	max_out_io = pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io;
 	ccb_count = min_t(int, PM8001_MAX_CCB, max_out_io);
@@ -1209,7 +1234,7 @@ pm8001_init_ccb_tag(struct pm8001_hba_info *pm8001_ha, struct Scsi_Host *shost,
 		goto err_out_noccb;
 	}
 	for (i = 0; i < ccb_count; i++) {
-		pm8001_ha->ccb_info[i].buf_prd = dma_alloc_coherent(&pdev->dev,
+		pm8001_ha->ccb_info[i].buf_prd = dma_alloc_coherent(dev,
 				sizeof(struct pm8001_prd) * PM8001_MAX_DMA_SG,
 				&pm8001_ha->ccb_info[i].ccb_dma_handle,
 				GFP_KERNEL);