1 files changed, 193 insertions, 24 deletions

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 331e896d8225..8b22df8c1792 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -2990,19 +2990,26 @@ static int
 _base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev)
 {
 	struct sysinfo s;
+	u64 coherent_dma_mask, dma_mask;
 
-	if (ioc->is_mcpu_endpoint ||
-	    sizeof(dma_addr_t) == 4 || ioc->use_32bit_dma ||
-	    dma_get_required_mask(&pdev->dev) <= DMA_BIT_MASK(32))
+	if (ioc->is_mcpu_endpoint || sizeof(dma_addr_t) == 4 ||
+	    dma_get_required_mask(&pdev->dev) <= 32) {
 		ioc->dma_mask = 32;
+		coherent_dma_mask = dma_mask = DMA_BIT_MASK(32);
 	/* Set 63 bit DMA mask for all SAS3 and SAS35 controllers */
-	else if (ioc->hba_mpi_version_belonged > MPI2_VERSION)
+	} else if (ioc->hba_mpi_version_belonged > MPI2_VERSION) {
 		ioc->dma_mask = 63;
-	else
+		coherent_dma_mask = dma_mask = DMA_BIT_MASK(63);
+	} else {
 		ioc->dma_mask = 64;
+		coherent_dma_mask = dma_mask = DMA_BIT_MASK(64);
+	}
 
-	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(ioc->dma_mask)) ||
-	    dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(ioc->dma_mask)))
+	if (ioc->use_32bit_dma)
+		coherent_dma_mask = DMA_BIT_MASK(32);
+
+	if (dma_set_mask(&pdev->dev, dma_mask) ||
+	    dma_set_coherent_mask(&pdev->dev, coherent_dma_mask))
 		return -ENODEV;
 
 	if (ioc->dma_mask > 32) {
@@ -4313,7 +4320,7 @@ _base_put_smid_scsi_io_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	descriptor.MSIxIndex = _base_set_and_get_msix_index(ioc, smid);
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -4335,7 +4342,7 @@ _base_put_smid_fast_path_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	descriptor.MSIxIndex = _base_set_and_get_msix_index(ioc, smid);
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -4358,7 +4365,7 @@ _base_put_smid_hi_priority_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	descriptor.MSIxIndex = msix_task;
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -4379,7 +4386,7 @@ _base_put_smid_default_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 	descriptor.MSIxIndex = _base_set_and_get_msix_index(ioc, smid);
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -5425,6 +5432,151 @@ out:
 }
 
 /**
+ * mpt3sas_atto_validate_nvram - validate the ATTO nvram read from mfg pg1
+ *
+ * @ioc : per adapter object
+ * @n   : ptr to the ATTO nvram structure
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpt3sas_atto_validate_nvram(struct MPT3SAS_ADAPTER *ioc,
+			    struct ATTO_SAS_NVRAM *n)
+{
+	int r = -EINVAL;
+	union ATTO_SAS_ADDRESS *s1;
+	u32 len;
+	u8 *pb;
+	u8 ckSum;
+
+	/* validate nvram checksum */
+	pb = (u8 *) n;
+	ckSum = ATTO_SASNVR_CKSUM_SEED;
+	len = sizeof(struct ATTO_SAS_NVRAM);
+
+	while (len--)
+		ckSum = ckSum + pb[len];
+
+	if (ckSum) {
+		ioc_err(ioc, "Invalid ATTO NVRAM checksum\n");
+		return r;
+	}
+
+	s1 = (union ATTO_SAS_ADDRESS *) n->SasAddr;
+
+	if (n->Signature[0] != 'E'
+	|| n->Signature[1] != 'S'
+	|| n->Signature[2] != 'A'
+	|| n->Signature[3] != 'S')
+		ioc_err(ioc, "Invalid ATTO NVRAM signature\n");
+	else if (n->Version > ATTO_SASNVR_VERSION)
+		ioc_info(ioc, "Invalid ATTO NVRAM version");
+	else if ((n->SasAddr[7] & (ATTO_SAS_ADDR_ALIGN - 1))
+			|| s1->b[0] != 0x50
+			|| s1->b[1] != 0x01
+			|| s1->b[2] != 0x08
+			|| (s1->b[3] & 0xF0) != 0x60
+			|| ((s1->b[3] & 0x0F) | le32_to_cpu(s1->d[1])) == 0) {
+		ioc_err(ioc, "Invalid ATTO SAS address\n");
+	} else
+		r = 0;
+	return r;
+}
+
+/**
+ * mpt3sas_atto_get_sas_addr - get the ATTO SAS address from mfg page 1
+ *
+ * @ioc : per adapter object
+ * @*sas_addr : return sas address
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpt3sas_atto_get_sas_addr(struct MPT3SAS_ADAPTER *ioc, union ATTO_SAS_ADDRESS *sas_addr)
+{
+	Mpi2ManufacturingPage1_t mfg_pg1;
+	Mpi2ConfigReply_t mpi_reply;
+	struct ATTO_SAS_NVRAM *nvram;
+	int r;
+	__be64 addr;
+
+	r = mpt3sas_config_get_manufacturing_pg1(ioc, &mpi_reply, &mfg_pg1);
+	if (r) {
+		ioc_err(ioc, "Failed to read manufacturing page 1\n");
+		return r;
+	}
+
+	/* validate nvram */
+	nvram = (struct ATTO_SAS_NVRAM *) mfg_pg1.VPD;
+	r = mpt3sas_atto_validate_nvram(ioc, nvram);
+	if (r)
+		return r;
+
+	addr = *((__be64 *) nvram->SasAddr);
+	sas_addr->q = cpu_to_le64(be64_to_cpu(addr));
+	return r;
+}
+
+/**
+ * mpt3sas_atto_init - perform initializaion for ATTO branded
+ *					adapter.
+ * @ioc : per adapter object
+ *5
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpt3sas_atto_init(struct MPT3SAS_ADAPTER *ioc)
+{
+	int sz = 0;
+	Mpi2BiosPage4_t *bios_pg4 = NULL;
+	Mpi2ConfigReply_t mpi_reply;
+	int r;
+	int ix;
+	union ATTO_SAS_ADDRESS sas_addr;
+	union ATTO_SAS_ADDRESS temp;
+	union ATTO_SAS_ADDRESS bias;
+
+	r = mpt3sas_atto_get_sas_addr(ioc, &sas_addr);
+	if (r)
+		return r;
+
+	/* get header first to get size */
+	r = mpt3sas_config_get_bios_pg4(ioc, &mpi_reply, NULL, 0);
+	if (r) {
+		ioc_err(ioc, "Failed to read ATTO bios page 4 header.\n");
+		return r;
+	}
+
+	sz = mpi_reply.Header.PageLength * sizeof(u32);
+	bios_pg4 = kzalloc(sz, GFP_KERNEL);
+	if (!bios_pg4) {
+		ioc_err(ioc, "Failed to allocate memory for ATTO bios page.\n");
+		return -ENOMEM;
+	}
+
+	/* read bios page 4 */
+	r = mpt3sas_config_get_bios_pg4(ioc, &mpi_reply, bios_pg4, sz);
+	if (r) {
+		ioc_err(ioc, "Failed to read ATTO bios page 4\n");
+		goto out;
+	}
+
+	/* Update bios page 4 with the ATTO WWID */
+	bias.q = sas_addr.q;
+	bias.b[7] += ATTO_SAS_ADDR_DEVNAME_BIAS;
+
+	for (ix = 0; ix < bios_pg4->NumPhys; ix++) {
+		temp.q = sas_addr.q;
+		temp.b[7] += ix;
+		bios_pg4->Phy[ix].ReassignmentWWID = temp.q;
+		bios_pg4->Phy[ix].ReassignmentDeviceName = bias.q;
+	}
+	r = mpt3sas_config_set_bios_pg4(ioc, &mpi_reply, bios_pg4, sz);
+
+out:
+	kfree(bios_pg4);
+	return r;
+}
+
+/**
  * _base_static_config_pages - static start of day config pages
  * @ioc: per adapter object
  */
@@ -5447,6 +5599,13 @@ _base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
 		if (rc)
 			return rc;
 	}
+
+	if (ioc->pdev->vendor == MPI2_MFGPAGE_VENDORID_ATTO) {
+		rc = mpt3sas_atto_init(ioc);
+		if (rc)
+			return rc;
+	}
+
 	/*
 	 * Ensure correct T10 PI operation if vendor left EEDPTagMode
 	 * flag unset in NVDATA.
@@ -5496,12 +5655,21 @@ _base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
 	rc = _base_assign_fw_reported_qd(ioc);
 	if (rc)
 		return rc;
-	rc = mpt3sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
-	if (rc)
-		return rc;
-	rc = mpt3sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
-	if (rc)
-		return rc;
+
+	/*
+	 * ATTO doesn't use bios page 2 and 3 for bios settings.
+	 */
+	if (ioc->pdev->vendor ==  MPI2_MFGPAGE_VENDORID_ATTO)
+		ioc->bios_pg3.BiosVersion = 0;
+	else {
+		rc = mpt3sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
+		if (rc)
+			return rc;
+		rc = mpt3sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
+		if (rc)
+			return rc;
+	}
+
 	rc = mpt3sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
 	if (rc)
 		return rc;
@@ -6895,7 +7063,7 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 
 	/* send message 32-bits at a time */
 	for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
-		writel(request[i], &ioc->chip->Doorbell);
+		writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
 		if ((_base_wait_for_doorbell_ack(ioc, 5)))
 			failed = 1;
 	}
@@ -6914,16 +7082,16 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 	}
 
 	/* read the first two 16-bits, it gives the total length of the reply */
-	reply[0] = ioc->base_readl(&ioc->chip->Doorbell)
-		& MPI2_DOORBELL_DATA_MASK;
+	reply[0] = le16_to_cpu(ioc->base_readl(&ioc->chip->Doorbell)
+	    & MPI2_DOORBELL_DATA_MASK);
 	writel(0, &ioc->chip->HostInterruptStatus);
 	if ((_base_wait_for_doorbell_int(ioc, 5))) {
 		ioc_err(ioc, "doorbell handshake int failed (line=%d)\n",
 			__LINE__);
 		return -EFAULT;
 	}
-	reply[1] = ioc->base_readl(&ioc->chip->Doorbell)
-		& MPI2_DOORBELL_DATA_MASK;
+	reply[1] = le16_to_cpu(ioc->base_readl(&ioc->chip->Doorbell)
+	    & MPI2_DOORBELL_DATA_MASK);
 	writel(0, &ioc->chip->HostInterruptStatus);
 
 	for (i = 2; i < default_reply->MsgLength * 2; i++)  {
@@ -6935,8 +7103,9 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 		if (i >=  reply_bytes/2) /* overflow case */
 			ioc->base_readl(&ioc->chip->Doorbell);
 		else
-			reply[i] = ioc->base_readl(&ioc->chip->Doorbell)
-				& MPI2_DOORBELL_DATA_MASK;
+			reply[i] = le16_to_cpu(
+			    ioc->base_readl(&ioc->chip->Doorbell)
+			    & MPI2_DOORBELL_DATA_MASK);
 		writel(0, &ioc->chip->HostInterruptStatus);
 	}