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

Pull more SCSI updates from James Bottomley:
 "The set of core changes here is Christoph's submission path cleanups.

  These introduced a couple of regressions when first proposed so they
  got held over from the initial merge window pull request to give more
  testing time, which they've now had and Syzbot has confirmed the
  regression it detected is fixed.

  The other main changes are two driver updates (arcmsr, pm80xx) and
  assorted minor clean ups"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
  scsi: qla2xxx: Fix return of uninitialized value in rval
  scsi: core: Set sc_data_direction to DMA_NONE for no-transfer commands
  scsi: sr: Initialize ->cmd_len
  scsi: arcmsr: Update driver version to v1.50.00.02-20200819
  scsi: arcmsr: Add support for ARC-1886 series RAID controllers
  scsi: arcmsr: Fix device hot-plug monitoring timer stop
  scsi: arcmsr: Remove unnecessary syntax
  scsi: pm80xx: Driver version update
  scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
  scsi: pm80xx: Remove DMA memory allocation for ccb and device structures
  scsi: pm80xx: Increase number of supported queues
  scsi: sym53c8xx_2: Fix sizeof() mismatch
  scsi: isci: Fix a typo in a comment
  scsi: qla4xxx: Fix inconsistent format argument type
  scsi: myrb: Fix inconsistent format argument types
  scsi: myrb: Remove redundant assignment to variable timeout
  scsi: bfa: Fix error return in bfad_pci_init()
  scsi: fcoe: Simplify the return expression of fcoe_sysfs_setup()
  scsi: snic: Simplify the return expression of svnic_cq_alloc()
  scsi: fnic: Simplify the return expression of vnic_wq_copy_alloc()
  ...

1 files changed, 290 insertions, 87 deletions

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index ec895d0319f0..e4fdb473b990 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -133,6 +133,7 @@ static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *pACB);
 static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb);
 static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb);
 static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb);
+static void arcmsr_hbaF_postqueue_isr(struct AdapterControlBlock *acb);
 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
 static const char *arcmsr_info(struct Scsi_Host *);
 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
@@ -209,6 +210,8 @@ static struct pci_device_id arcmsr_device_id_table[] = {
 		.driver_data = ACB_ADAPTER_TYPE_C},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1884),
 		.driver_data = ACB_ADAPTER_TYPE_E},
+	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1886),
+		.driver_data = ACB_ADAPTER_TYPE_F},
 	{0, 0}, /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
@@ -232,12 +235,12 @@ static void arcmsr_free_io_queue(struct AdapterControlBlock *acb)
 	switch (acb->adapter_type) {
 	case ACB_ADAPTER_TYPE_B:
 	case ACB_ADAPTER_TYPE_D:
-	case ACB_ADAPTER_TYPE_E: {
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:
 		dma_free_coherent(&acb->pdev->dev, acb->ioqueue_size,
 			acb->dma_coherent2, acb->dma_coherent_handle2);
 		break;
 	}
-	}
 }
 
 static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
@@ -310,6 +313,19 @@ static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
 		acb->out_doorbell = 0;
 		break;
 		}
+	case ACB_ADAPTER_TYPE_F: {
+		acb->pmuF = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
+		if (!acb->pmuF) {
+			pr_notice("arcmsr%d: memory mapping region fail\n",
+				acb->host->host_no);
+			return false;
+		}
+		writel(0, &acb->pmuF->host_int_status); /* clear interrupt */
+		writel(ARCMSR_HBFMU_DOORBELL_SYNC, &acb->pmuF->iobound_doorbell);
+		acb->in_doorbell = 0;
+		acb->out_doorbell = 0;
+		break;
+		}
 	}
 	return true;
 }
@@ -317,26 +333,25 @@ static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
 static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
-	case ACB_ADAPTER_TYPE_A:{
+	case ACB_ADAPTER_TYPE_A:
 		iounmap(acb->pmuA);
-	}
-	break;
-	case ACB_ADAPTER_TYPE_B:{
+		break;
+	case ACB_ADAPTER_TYPE_B:
 		iounmap(acb->mem_base0);
 		iounmap(acb->mem_base1);
-	}
-
-	break;
-	case ACB_ADAPTER_TYPE_C:{
+		break;
+	case ACB_ADAPTER_TYPE_C:
 		iounmap(acb->pmuC);
-	}
-	break;
+		break;
 	case ACB_ADAPTER_TYPE_D:
 		iounmap(acb->mem_base0);
 		break;
 	case ACB_ADAPTER_TYPE_E:
 		iounmap(acb->pmuE);
 		break;
+	case ACB_ADAPTER_TYPE_F:
+		iounmap(acb->pmuF);
+		break;
 	}
 }
 
@@ -552,23 +567,20 @@ static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
 
-	case ACB_ADAPTER_TYPE_A: {
+	case ACB_ADAPTER_TYPE_A:
 		arcmsr_hbaA_flush_cache(acb);
-		}
 		break;
-
-	case ACB_ADAPTER_TYPE_B: {
+	case ACB_ADAPTER_TYPE_B:
 		arcmsr_hbaB_flush_cache(acb);
-		}
 		break;
-	case ACB_ADAPTER_TYPE_C: {
+	case ACB_ADAPTER_TYPE_C:
 		arcmsr_hbaC_flush_cache(acb);
-		}
 		break;
 	case ACB_ADAPTER_TYPE_D:
 		arcmsr_hbaD_flush_cache(acb);
 		break;
 	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:
 		arcmsr_hbaE_flush_cache(acb);
 		break;
 	}
@@ -626,6 +638,27 @@ static void arcmsr_hbaD_assign_regAddr(struct AdapterControlBlock *acb)
 	reg->msgcode_rwbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RWBUFFER);
 }
 
+static void arcmsr_hbaF_assign_regAddr(struct AdapterControlBlock *acb)
+{
+	dma_addr_t host_buffer_dma;
+	struct MessageUnit_F __iomem *pmuF;
+
+	memset(acb->dma_coherent2, 0xff, acb->completeQ_size);
+	acb->message_wbuffer = (uint32_t *)round_up((unsigned long)acb->dma_coherent2 +
+		acb->completeQ_size, 4);
+	acb->message_rbuffer = ((void *)acb->message_wbuffer) + 0x100;
+	acb->msgcode_rwbuffer = ((void *)acb->message_wbuffer) + 0x200;
+	memset((void *)acb->message_wbuffer, 0, MESG_RW_BUFFER_SIZE);
+	host_buffer_dma = round_up(acb->dma_coherent_handle2 + acb->completeQ_size, 4);
+	pmuF = acb->pmuF;
+	/* host buffer low address, bit0:1 all buffer active */
+	writel(lower_32_bits(host_buffer_dma | 1), &pmuF->inbound_msgaddr0);
+	/* host buffer high address */
+	writel(upper_32_bits(host_buffer_dma), &pmuF->inbound_msgaddr1);
+	/* set host buffer physical address */
+	writel(ARCMSR_HBFMU_DOORBELL_SYNC1, &pmuF->iobound_doorbell);
+}
+
 static bool arcmsr_alloc_io_queue(struct AdapterControlBlock *acb)
 {
 	bool rtn = true;
@@ -679,6 +712,28 @@ static bool arcmsr_alloc_io_queue(struct AdapterControlBlock *acb)
 		acb->doneq_index = 0;
 		}
 		break;
+	case ACB_ADAPTER_TYPE_F: {
+		uint32_t QueueDepth;
+		uint32_t depthTbl[] = {256, 512, 1024, 128, 64, 32};
+
+		arcmsr_wait_firmware_ready(acb);
+		QueueDepth = depthTbl[readl(&acb->pmuF->outbound_msgaddr1) & 7];
+		acb->completeQ_size = sizeof(struct deliver_completeQ) * QueueDepth + 128;
+		acb->ioqueue_size = roundup(acb->completeQ_size + MESG_RW_BUFFER_SIZE, 32);
+		dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
+			&dma_coherent_handle, GFP_KERNEL);
+		if (!dma_coherent) {
+			pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
+			return false;
+		}
+		acb->dma_coherent_handle2 = dma_coherent_handle;
+		acb->dma_coherent2 = dma_coherent;
+		acb->pCompletionQ = dma_coherent;
+		acb->completionQ_entry = acb->completeQ_size / sizeof(struct deliver_completeQ);
+		acb->doneq_index = 0;
+		arcmsr_hbaF_assign_regAddr(acb);
+		}
+		break;
 	default:
 		break;
 	}
@@ -713,7 +768,8 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 	acb->host->sg_tablesize = max_sg_entrys;
 	roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
 	acb->uncache_size = roundup_ccbsize * acb->maxFreeCCB;
-	acb->uncache_size += acb->ioqueue_size;
+	if (acb->adapter_type != ACB_ADAPTER_TYPE_F)
+		acb->uncache_size += acb->ioqueue_size;
 	dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
 	if(!dma_coherent){
 		printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
@@ -736,6 +792,7 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 		case ACB_ADAPTER_TYPE_C:
 		case ACB_ADAPTER_TYPE_D:
 		case ACB_ADAPTER_TYPE_E:
+		case ACB_ADAPTER_TYPE_F:
 			ccb_tmp->cdb_phyaddr = cdb_phyaddr;
 			break;
 		}
@@ -754,8 +811,10 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 		ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
 		dma_coherent_handle = next_ccb_phy;
 	}
-	acb->dma_coherent_handle2 = dma_coherent_handle;
-	acb->dma_coherent2 = ccb_tmp;
+	if (acb->adapter_type != ACB_ADAPTER_TYPE_F) {
+		acb->dma_coherent_handle2 = dma_coherent_handle;
+		acb->dma_coherent2 = ccb_tmp;
+	}
 	switch (acb->adapter_type) {
 	case ACB_ADAPTER_TYPE_B:
 		acb->pmuB = (struct MessageUnit_B *)acb->dma_coherent2;
@@ -785,7 +844,6 @@ static void arcmsr_message_isr_bh_fn(struct work_struct *work)
 	struct scsi_device *psdev;
 	char diff, temp;
 
-	acb->acb_flags &= ~ACB_F_MSG_GET_CONFIG;
 	switch (acb->adapter_type) {
 	case ACB_ADAPTER_TYPE_A: {
 		struct MessageUnit_A __iomem *reg  = acb->pmuA;
@@ -822,8 +880,12 @@ static void arcmsr_message_isr_bh_fn(struct work_struct *work)
 		devicemap = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
 		break;
 		}
+	case ACB_ADAPTER_TYPE_F: {
+		signature = (uint32_t __iomem *)(&acb->msgcode_rwbuffer[0]);
+		devicemap = (char __iomem *)(&acb->msgcode_rwbuffer[21]);
+		break;
+		}
 	}
-	atomic_inc(&acb->rq_map_token);
 	if (readl(signature) != ARCMSR_SIGNATURE_GET_CONFIG)
 		return;
 	for (target = 0; target < ARCMSR_MAX_TARGETID - 1;
@@ -854,6 +916,7 @@ static void arcmsr_message_isr_bh_fn(struct work_struct *work)
 		devicemap++;
 		acb_dev_map++;
 	}
+	acb->acb_flags &= ~ACB_F_MSG_GET_CONFIG;
 }
 
 static int
@@ -906,8 +969,6 @@ out_free_irq:
 static void arcmsr_init_get_devmap_timer(struct AdapterControlBlock *pacb)
 {
 	INIT_WORK(&pacb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
-	atomic_set(&pacb->rq_map_token, 16);
-	atomic_set(&pacb->ante_token_value, 16);
 	pacb->fw_flag = FW_NORMAL;
 	timer_setup(&pacb->eternal_timer, arcmsr_request_device_map, 0);
 	pacb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
@@ -1009,7 +1070,8 @@ static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if(!error){
 		goto free_hbb_mu;
 	}
-	arcmsr_free_io_queue(acb);
+	if (acb->adapter_type != ACB_ADAPTER_TYPE_F)
+		arcmsr_free_io_queue(acb);
 	error = arcmsr_alloc_ccb_pool(acb);
 	if(error){
 		goto unmap_pci_region;
@@ -1122,6 +1184,14 @@ static int arcmsr_resume(struct pci_dev *pdev)
 		acb->out_doorbell = 0;
 		acb->doneq_index = 0;
 		break;
+	case ACB_ADAPTER_TYPE_F:
+		writel(0, &acb->pmuF->host_int_status);
+		writel(ARCMSR_HBFMU_DOORBELL_SYNC, &acb->pmuF->iobound_doorbell);
+		acb->in_doorbell = 0;
+		acb->out_doorbell = 0;
+		acb->doneq_index = 0;
+		arcmsr_hbaF_assign_regAddr(acb);
+		break;
 	}
 	arcmsr_iop_init(acb);
 	arcmsr_init_get_devmap_timer(acb);
@@ -1134,6 +1204,8 @@ controller_stop:
 controller_unregister:
 	scsi_remove_host(host);
 	arcmsr_free_ccb_pool(acb);
+	if (acb->adapter_type == ACB_ADAPTER_TYPE_F)
+		arcmsr_free_io_queue(acb);
 	arcmsr_unmap_pciregion(acb);
 	pci_release_regions(pdev);
 	scsi_host_put(host);
@@ -1213,25 +1285,20 @@ static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
 {
 	uint8_t rtnval = 0;
 	switch (acb->adapter_type) {
-	case ACB_ADAPTER_TYPE_A: {
+	case ACB_ADAPTER_TYPE_A:
 		rtnval = arcmsr_hbaA_abort_allcmd(acb);
-		}
 		break;
-
-	case ACB_ADAPTER_TYPE_B: {
+	case ACB_ADAPTER_TYPE_B:
 		rtnval = arcmsr_hbaB_abort_allcmd(acb);
-		}
 		break;
-
-	case ACB_ADAPTER_TYPE_C: {
+	case ACB_ADAPTER_TYPE_C:
 		rtnval = arcmsr_hbaC_abort_allcmd(acb);
-		}
 		break;
-
 	case ACB_ADAPTER_TYPE_D:
 		rtnval = arcmsr_hbaD_abort_allcmd(acb);
 		break;
 	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:
 		rtnval = arcmsr_hbaE_abort_allcmd(acb);
 		break;
 	}
@@ -1307,7 +1374,8 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
 		writel(ARCMSR_ARC1214_ALL_INT_DISABLE, reg->pcief0_int_enable);
 		}
 		break;
-	case ACB_ADAPTER_TYPE_E: {
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F: {
 		struct MessageUnit_E __iomem *reg = acb->pmuE;
 		orig_mask = readl(&reg->host_int_mask);
 		writel(orig_mask | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR, &reg->host_int_mask);
@@ -1514,6 +1582,9 @@ static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_E:
 		arcmsr_hbaE_postqueue_isr(acb);
 		break;
+	case ACB_ADAPTER_TYPE_F:
+		arcmsr_hbaF_postqueue_isr(acb);
+		break;
 	}
 }
 
@@ -1568,6 +1639,8 @@ static void arcmsr_free_pcidev(struct AdapterControlBlock *acb)
 	pdev = acb->pdev;
 	arcmsr_free_irq(pdev, acb);
 	arcmsr_free_ccb_pool(acb);
+	if (acb->adapter_type == ACB_ADAPTER_TYPE_F)
+		arcmsr_free_io_queue(acb);
 	arcmsr_unmap_pciregion(acb);
 	pci_release_regions(pdev);
 	scsi_host_put(host);
@@ -1625,6 +1698,8 @@ static void arcmsr_remove(struct pci_dev *pdev)
 	}
 	arcmsr_free_irq(pdev, acb);
 	arcmsr_free_ccb_pool(acb);
+	if (acb->adapter_type == ACB_ADAPTER_TYPE_F)
+		arcmsr_free_io_queue(acb);
 	arcmsr_unmap_pciregion(acb);
 	pci_release_regions(pdev);
 	scsi_host_put(host);
@@ -1702,7 +1777,8 @@ static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
 		writel(intmask_org | mask, reg->pcief0_int_enable);
 		break;
 		}
-	case ACB_ADAPTER_TYPE_E: {
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F: {
 		struct MessageUnit_E __iomem *reg = acb->pmuE;
 
 		mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
@@ -1846,6 +1922,19 @@ static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandContr
 		writel(ccb_post_stamp, &pmu->inbound_queueport_low);
 		break;
 		}
+	case ACB_ADAPTER_TYPE_F: {
+		struct MessageUnit_F __iomem *pmu = acb->pmuF;
+		u32 ccb_post_stamp, arc_cdb_size;
+
+		if (ccb->arc_cdb_size <= 0x300)
+			arc_cdb_size = (ccb->arc_cdb_size - 1) >> 6 | 1;
+		else
+			arc_cdb_size = (((ccb->arc_cdb_size + 0xff) >> 8) + 2) << 1 | 1;
+		ccb_post_stamp = (ccb->smid | arc_cdb_size);
+		writel(0, &pmu->inbound_queueport_high);
+		writel(ccb_post_stamp, &pmu->inbound_queueport_low);
+		break;
+		}
 	}
 }
 
@@ -1916,23 +2005,20 @@ static void arcmsr_hbaE_stop_bgrb(struct AdapterControlBlock *pACB)
 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
-	case ACB_ADAPTER_TYPE_A: {
+	case ACB_ADAPTER_TYPE_A:
 		arcmsr_hbaA_stop_bgrb(acb);
-		}
 		break;
-
-	case ACB_ADAPTER_TYPE_B: {
+	case ACB_ADAPTER_TYPE_B:
 		arcmsr_hbaB_stop_bgrb(acb);
-		}
 		break;
-	case ACB_ADAPTER_TYPE_C: {
+	case ACB_ADAPTER_TYPE_C:
 		arcmsr_hbaC_stop_bgrb(acb);
-		}
 		break;
 	case ACB_ADAPTER_TYPE_D:
 		arcmsr_hbaD_stop_bgrb(acb);
 		break;
 	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:
 		arcmsr_hbaE_stop_bgrb(acb);
 		break;
 	}
@@ -1951,7 +2037,6 @@ static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
 		writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, &reg->inbound_doorbell);
 		}
 		break;
-
 	case ACB_ADAPTER_TYPE_B: {
 		struct MessageUnit_B *reg = acb->pmuB;
 		writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
@@ -1969,7 +2054,8 @@ static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
 			reg->inbound_doorbell);
 		}
 		break;
-	case ACB_ADAPTER_TYPE_E: {
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F: {
 		struct MessageUnit_E __iomem *reg = acb->pmuE;
 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
 		writel(acb->out_doorbell, &reg->iobound_doorbell);
@@ -2015,7 +2101,8 @@ static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
 			reg->inbound_doorbell);
 		}
 		break;
-	case ACB_ADAPTER_TYPE_E: {
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F: {
 		struct MessageUnit_E __iomem *reg = acb->pmuE;
 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
 		writel(acb->out_doorbell, &reg->iobound_doorbell);
@@ -2034,7 +2121,6 @@ struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
 		qbuffer = (struct QBUFFER __iomem *)&reg->message_rbuffer;
 		}
 		break;
-
 	case ACB_ADAPTER_TYPE_B: {
 		struct MessageUnit_B *reg = acb->pmuB;
 		qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
@@ -2055,6 +2141,10 @@ struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
 		qbuffer = (struct QBUFFER __iomem *)&reg->message_rbuffer;
 		}
 		break;
+	case ACB_ADAPTER_TYPE_F: {
+		qbuffer = (struct QBUFFER __iomem *)acb->message_rbuffer;
+		}
+		break;
 	}
 	return qbuffer;
 }
@@ -2069,7 +2159,6 @@ static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBloc
 		pqbuffer = (struct QBUFFER __iomem *) &reg->message_wbuffer;
 		}
 		break;
-
 	case ACB_ADAPTER_TYPE_B: {
 		struct MessageUnit_B  *reg = acb->pmuB;
 		pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
@@ -2090,6 +2179,9 @@ static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBloc
 		pqbuffer = (struct QBUFFER __iomem *)&reg->message_wbuffer;
 		}
 		break;
+	case ACB_ADAPTER_TYPE_F:
+		pqbuffer = (struct QBUFFER __iomem *)acb->message_wbuffer;
+		break;
 	}
 	return pqbuffer;
 }
@@ -2504,6 +2596,36 @@ static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb)
 	spin_unlock_irqrestore(&acb->doneq_lock, flags);
 }
 
+static void arcmsr_hbaF_postqueue_isr(struct AdapterControlBlock *acb)
+{
+	uint32_t doneq_index;
+	uint16_t cmdSMID;
+	int error;
+	struct MessageUnit_F __iomem *phbcmu;
+	struct CommandControlBlock *ccb;
+	unsigned long flags;
+
+	spin_lock_irqsave(&acb->doneq_lock, flags);
+	doneq_index = acb->doneq_index;
+	phbcmu = acb->pmuF;
+	while (1) {
+		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
+		if (cmdSMID == 0xffff)
+			break;
+		ccb = acb->pccb_pool[cmdSMID];
+		error = (acb->pCompletionQ[doneq_index].cmdFlag &
+			ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
+		arcmsr_drain_donequeue(acb, ccb, error);
+		acb->pCompletionQ[doneq_index].cmdSMID = 0xffff;
+		doneq_index++;
+		if (doneq_index >= acb->completionQ_entry)
+			doneq_index = 0;
+	}
+	acb->doneq_index = doneq_index;
+	writel(doneq_index, &phbcmu->reply_post_consumer_index);
+	spin_unlock_irqrestore(&acb->doneq_lock, flags);
+}
+
 /*
 **********************************************************************************
 ** Handle a message interrupt
@@ -2694,21 +2816,46 @@ static irqreturn_t arcmsr_hbaE_handle_isr(struct AdapterControlBlock *pACB)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t arcmsr_hbaF_handle_isr(struct AdapterControlBlock *pACB)
+{
+	uint32_t host_interrupt_status;
+	struct MessageUnit_F __iomem *phbcmu = pACB->pmuF;
+
+	host_interrupt_status = readl(&phbcmu->host_int_status) &
+		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
+		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
+	if (!host_interrupt_status)
+		return IRQ_NONE;
+	do {
+		/* MU post queue interrupts*/
+		if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR)
+			arcmsr_hbaF_postqueue_isr(pACB);
+
+		/* MU ioctl transfer doorbell interrupts*/
+		if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR)
+			arcmsr_hbaE_doorbell_isr(pACB);
+
+		host_interrupt_status = readl(&phbcmu->host_int_status);
+	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
+		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
+	return IRQ_HANDLED;
+}
+
 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
 	case ACB_ADAPTER_TYPE_A:
 		return arcmsr_hbaA_handle_isr(acb);
-		break;
 	case ACB_ADAPTER_TYPE_B:
 		return arcmsr_hbaB_handle_isr(acb);
-		break;
 	case ACB_ADAPTER_TYPE_C:
 		return arcmsr_hbaC_handle_isr(acb);
 	case ACB_ADAPTER_TYPE_D:
 		return arcmsr_hbaD_handle_isr(acb);
 	case ACB_ADAPTER_TYPE_E:
 		return arcmsr_hbaE_handle_isr(acb);
+	case ACB_ADAPTER_TYPE_F:
+		return arcmsr_hbaF_handle_isr(acb);
 	default:
 		return IRQ_NONE;
 	}
@@ -3257,6 +3404,31 @@ static bool arcmsr_hbaE_get_config(struct AdapterControlBlock *pACB)
 	return true;
 }
 
+static bool arcmsr_hbaF_get_config(struct AdapterControlBlock *pACB)
+{
+	struct MessageUnit_F __iomem *reg = pACB->pmuF;
+	uint32_t intmask_org;
+
+	/* disable all outbound interrupt */
+	intmask_org = readl(&reg->host_int_mask); /* disable outbound message0 int */
+	writel(intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE, &reg->host_int_mask);
+	/* wait firmware ready */
+	arcmsr_wait_firmware_ready(pACB);
+	/* post "get config" instruction */
+	writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+
+	pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+	writel(pACB->out_doorbell, &reg->iobound_doorbell);
+	/* wait message ready */
+	if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
+		pr_notice("arcmsr%d: wait get adapter firmware miscellaneous data timeout\n",
+			  pACB->host->host_no);
+		return false;
+	}
+	arcmsr_get_adapter_config(pACB, pACB->msgcode_rwbuffer);
+	return true;
+}
+
 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
 {
 	bool rtn = false;
@@ -3277,6 +3449,9 @@ static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_E:
 		rtn = arcmsr_hbaE_get_config(acb);
 		break;
+	case ACB_ADAPTER_TYPE_F:
+		rtn = arcmsr_hbaF_get_config(acb);
+		break;
 	default:
 		break;
 	}
@@ -3634,23 +3809,20 @@ static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
 	int rtn = 0;
 	switch (acb->adapter_type) {
 
-	case ACB_ADAPTER_TYPE_A: {
+	case ACB_ADAPTER_TYPE_A:
 		rtn = arcmsr_hbaA_polling_ccbdone(acb, poll_ccb);
-		}
 		break;
-
-	case ACB_ADAPTER_TYPE_B: {
+	case ACB_ADAPTER_TYPE_B:
 		rtn = arcmsr_hbaB_polling_ccbdone(acb, poll_ccb);
-		}
 		break;
-	case ACB_ADAPTER_TYPE_C: {
+	case ACB_ADAPTER_TYPE_C:
 		rtn = arcmsr_hbaC_polling_ccbdone(acb, poll_ccb);
-		}
 		break;
 	case ACB_ADAPTER_TYPE_D:
 		rtn = arcmsr_hbaD_polling_ccbdone(acb, poll_ccb);
 		break;
 	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:
 		rtn = arcmsr_hbaE_polling_ccbdone(acb, poll_ccb);
 		break;
 	}
@@ -3731,6 +3903,16 @@ static void arcmsr_set_iop_datetime(struct timer_list *t)
 			writel(pacb->out_doorbell, &reg->iobound_doorbell);
 			break;
 		}
+		case ACB_ADAPTER_TYPE_F: {
+			struct MessageUnit_F __iomem *reg = pacb->pmuF;
+
+			pacb->msgcode_rwbuffer[0] = datetime.b.msg_time[0];
+			pacb->msgcode_rwbuffer[1] = datetime.b.msg_time[1];
+			writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
+			pacb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+			writel(pacb->out_doorbell, &reg->iobound_doorbell);
+			break;
+		}
 	}
 	if (sys_tz.tz_minuteswest)
 		next_time = ARCMSR_HOURS;
@@ -3756,6 +3938,7 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
 		dma_coherent_handle = acb->dma_coherent_handle2;
 		break;
 	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:
 		dma_coherent_handle = acb->dma_coherent_handle +
 			offsetof(struct CommandControlBlock, arcmsr_cdb);
 		break;
@@ -3873,11 +4056,8 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
 		writel(cdb_phyaddr, &reg->msgcode_rwbuffer[2]);
 		writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[3]);
 		writel(acb->ccbsize, &reg->msgcode_rwbuffer[4]);
-		dma_coherent_handle = acb->dma_coherent_handle2;
-		cdb_phyaddr = (uint32_t)(dma_coherent_handle & 0xffffffff);
-		cdb_phyaddr_hi32 = (uint32_t)((dma_coherent_handle >> 16) >> 16);
-		writel(cdb_phyaddr, &reg->msgcode_rwbuffer[5]);
-		writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[6]);
+		writel(lower_32_bits(acb->dma_coherent_handle2), &reg->msgcode_rwbuffer[5]);
+		writel(upper_32_bits(acb->dma_coherent_handle2), &reg->msgcode_rwbuffer[6]);
 		writel(acb->ioqueue_size, &reg->msgcode_rwbuffer[7]);
 		writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
 		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
@@ -3889,6 +4069,27 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
 		}
 		}
 		break;
+	case ACB_ADAPTER_TYPE_F: {
+		struct MessageUnit_F __iomem *reg = acb->pmuF;
+
+		acb->msgcode_rwbuffer[0] = ARCMSR_SIGNATURE_SET_CONFIG;
+		acb->msgcode_rwbuffer[1] = ARCMSR_SIGNATURE_1886;
+		acb->msgcode_rwbuffer[2] = cdb_phyaddr;
+		acb->msgcode_rwbuffer[3] = cdb_phyaddr_hi32;
+		acb->msgcode_rwbuffer[4] = acb->ccbsize;
+		acb->msgcode_rwbuffer[5] = lower_32_bits(acb->dma_coherent_handle2);
+		acb->msgcode_rwbuffer[6] = upper_32_bits(acb->dma_coherent_handle2);
+		acb->msgcode_rwbuffer[7] = acb->completeQ_size;
+		writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
+		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+		writel(acb->out_doorbell, &reg->iobound_doorbell);
+		if (!arcmsr_hbaE_wait_msgint_ready(acb)) {
+			pr_notice("arcmsr%d: 'set command Q window' timeout\n",
+				acb->host->host_no);
+			return 1;
+		}
+		}
+		break;
 	}
 	return 0;
 }
@@ -3937,7 +4138,8 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
 			ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK) == 0);
 		}
 		break;
-	case ACB_ADAPTER_TYPE_E: {
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F: {
 		struct MessageUnit_E __iomem *reg = acb->pmuE;
 		do {
 			if (!(acb->acb_flags & ACB_F_IOP_INITED))
@@ -3952,24 +4154,10 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
 static void arcmsr_request_device_map(struct timer_list *t)
 {
 	struct AdapterControlBlock *acb = from_timer(acb, t, eternal_timer);
-	if (unlikely(atomic_read(&acb->rq_map_token) == 0) ||
-		(acb->acb_flags & ACB_F_BUS_RESET) ||
-		(acb->acb_flags & ACB_F_ABORT)) {
-		mod_timer(&acb->eternal_timer,
-			jiffies + msecs_to_jiffies(6 * HZ));
+	if (acb->acb_flags & (ACB_F_MSG_GET_CONFIG | ACB_F_BUS_RESET | ACB_F_ABORT)) {
+		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
 	} else {
 		acb->fw_flag = FW_NORMAL;
-		if (atomic_read(&acb->ante_token_value) ==
-			atomic_read(&acb->rq_map_token)) {
-			atomic_set(&acb->rq_map_token, 16);
-		}
-		atomic_set(&acb->ante_token_value,
-			atomic_read(&acb->rq_map_token));
-		if (atomic_dec_and_test(&acb->rq_map_token)) {
-			mod_timer(&acb->eternal_timer, jiffies +
-				msecs_to_jiffies(6 * HZ));
-			return;
-		}
 		switch (acb->adapter_type) {
 		case ACB_ADAPTER_TYPE_A: {
 			struct MessageUnit_A __iomem *reg = acb->pmuA;
@@ -3999,10 +4187,23 @@ static void arcmsr_request_device_map(struct timer_list *t)
 			writel(acb->out_doorbell, &reg->iobound_doorbell);
 			break;
 			}
+		case ACB_ADAPTER_TYPE_F: {
+			struct MessageUnit_F __iomem *reg = acb->pmuF;
+			uint32_t outMsg1 = readl(&reg->outbound_msgaddr1);
+
+			if (!(outMsg1 & ARCMSR_HBFMU_MESSAGE_FIRMWARE_OK) ||
+				(outMsg1 & ARCMSR_HBFMU_MESSAGE_NO_VOLUME_CHANGE))
+				goto nxt6s;
+			writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+			writel(acb->out_doorbell, &reg->iobound_doorbell);
+			break;
+			}
 		default:
 			return;
 		}
 		acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
+nxt6s:
 		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
 	}
 }
@@ -4084,6 +4285,7 @@ static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
 		arcmsr_hbaD_start_bgrb(acb);
 		break;
 	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:
 		arcmsr_hbaE_start_bgrb(acb);
 		break;
 	}
@@ -4163,7 +4365,8 @@ static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
 		}
 		}
 		break;
-	case ACB_ADAPTER_TYPE_E: {
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F: {
 		struct MessageUnit_E __iomem *reg = acb->pmuE;
 		uint32_t i, tmp;
 
@@ -4290,7 +4493,8 @@ static bool arcmsr_reset_in_progress(struct AdapterControlBlock *acb)
 			true : false;
 		}
 		break;
-	case ACB_ADAPTER_TYPE_E:{
+	case ACB_ADAPTER_TYPE_E:
+	case ACB_ADAPTER_TYPE_F:{
 		struct MessageUnit_E __iomem *reg = acb->pmuE;
 		rtn = (readl(&reg->host_diagnostic_3xxx) &
 			ARCMSR_ARC188X_RESET_ADAPTER) ? true : false;
@@ -4389,8 +4593,6 @@ wait_reset_done:
 			goto wait_reset_done;
 		}
 		arcmsr_iop_init(acb);
-		atomic_set(&acb->rq_map_token, 16);
-		atomic_set(&acb->ante_token_value, 16);
 		acb->fw_flag = FW_NORMAL;
 		mod_timer(&acb->eternal_timer, jiffies +
 			msecs_to_jiffies(6 * HZ));
@@ -4399,8 +4601,6 @@ wait_reset_done:
 		pr_notice("arcmsr: scsi bus reset eh returns with success\n");
 	} else {
 		acb->acb_flags &= ~ACB_F_BUS_RESET;
-		atomic_set(&acb->rq_map_token, 16);
-		atomic_set(&acb->ante_token_value, 16);
 		acb->fw_flag = FW_NORMAL;
 		mod_timer(&acb->eternal_timer, jiffies +
 			msecs_to_jiffies(6 * HZ));
@@ -4493,6 +4693,9 @@ static const char *arcmsr_info(struct Scsi_Host *host)
 	case PCI_DEVICE_ID_ARECA_1884:
 		type = "SAS/SATA";
 		break;
+	case PCI_DEVICE_ID_ARECA_1886:
+		type = "NVMe/SAS/SATA";
+		break;
 	default:
 		type = "unknown";
 		raid6 =	0;