[PATCH 1/2] scsi: mpi3mr: Add ATTO vendor support and disable firmware download

[Steve Siwinski <stevensiwinski@gmail.com>]

Add support for ATTO HBAs by defining the ATTO vendor ID and adding an
entry to the PCI device ID table for SAS4116-based ATTO devices.

Since ATTO HBAs use specialized firmware, block firmware downloads
to ATTO devices via the MPI3_FUNCTION_CI_DOWNLOAD command and return
an error.

Signed-off-by: Steve Siwinski <ssiwinski@atto.com>
---
 drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h | 1 +
 drivers/scsi/mpi3mr/mpi3mr_app.c     | 9 +++++++++
 drivers/scsi/mpi3mr/mpi3mr_os.c      | 4 ++++
 3 files changed, 14 insertions(+)

diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h
index 96401eb7e231..314eb058c12d 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h
@@ -206,6 +206,7 @@ struct mpi3_config_page_header {
 #define MPI3_TEMP_SENSOR_LOCATION_OUTLET                (0x2)
 #define MPI3_TEMP_SENSOR_LOCATION_DRAM                  (0x3)
 #define MPI3_MFGPAGE_VENDORID_BROADCOM                  (0x1000)
+#define MPI3_MFGPAGE_VENDORID_ATTO                      (0x117C)
 #define MPI3_MFGPAGE_DEVID_SAS4116                      (0x00a5)
 #define MPI3_MFGPAGE_DEVID_SAS5116_MPI			(0x00b3)
 #define MPI3_MFGPAGE_DEVID_SAS5116_NVME			(0x00b4)
diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index f36663613950..7e2d23204e6c 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -2691,6 +2691,15 @@ static long mpi3mr_bsg_process_mpt_cmds(struct bsg_job *job)
 		goto out;
 	}
 
+	if (mrioc->pdev->subsystem_vendor == MPI3_MFGPAGE_VENDORID_ATTO &&
+		mpi_header->function == MPI3_FUNCTION_CI_DOWNLOAD) {
+		dprint_bsg_err(mrioc, "%s: Firmware download not supported for ATTO HBA.\n",
+				__func__);
+		rval = -EPERM;
+		mutex_unlock(&mrioc->bsg_cmds.mutex);
+		goto out;
+	}
+
 	if (mpi_header->function == MPI3_BSG_FUNCTION_NVME_ENCAPSULATED) {
 		nvme_fmt = mpi3mr_get_nvme_data_fmt(
 			(struct mpi3_nvme_encapsulated_request *)mpi_req);
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index ce444efd859e..12914400660a 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -5931,6 +5931,10 @@ static const struct pci_device_id mpi3mr_pci_id_table[] = {
 		PCI_DEVICE_SUB(MPI3_MFGPAGE_VENDORID_BROADCOM,
 		    MPI3_MFGPAGE_DEVID_SAS5116_MPI_MGMT, PCI_ANY_ID, PCI_ANY_ID)
 	},
+	{
+		PCI_DEVICE_SUB(MPI3_MFGPAGE_VENDORID_ATTO,
+		    MPI3_MFGPAGE_DEVID_SAS4116, PCI_ANY_ID, PCI_ANY_ID)
+	},
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, mpi3mr_pci_id_table);
-- 
2.43.5