[PATCH][SRU][F-hwe-5.11 06/30] scsi: smartpqi: Add support for long firmware version

[Krzysztof Kozlowski]

From: Kevin Barnett <kevin.barnett at microchip.com>

BugLink: https://bugs.launchpad.net/bugs/1933518

Add support for new "long" firmware version which requires minor driver
changes to expose.

Link: https://lore.kernel.org/r/161549374508.25025.15467221395888158022.stgit@brunhilda
Reviewed-by: Scott Benesh <scott.benesh at microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen at microchip.com>
Reviewed-by: Scott Teel <scott.teel at microchip.com>
Signed-off-by: Kevin Barnett <kevin.barnett at microchip.com>
Signed-off-by: Don Brace <don.brace at microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen at oracle.com>
(cherry picked from commit 598bef8d79421117b49642ef2b7cb65a73e186c1)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at canonical.com>
---
 drivers/scsi/smartpqi/smartpqi.h      | 14 +++++++---
 drivers/scsi/smartpqi/smartpqi_init.c | 37 +++++++++++++++++++++------
 2 files changed, 39 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index 9a2cec9e5393..fbf70c67cebc 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -1219,7 +1219,7 @@ struct pqi_event {
 struct pqi_ctrl_info {
 	unsigned int	ctrl_id;
 	struct pci_dev	*pci_dev;
-	char		firmware_version[11];
+	char		firmware_version[32];
 	char		serial_number[17];
 	char		model[17];
 	char		vendor[9];
@@ -1395,7 +1395,7 @@ enum pqi_ctrl_mode {
 struct bmic_identify_controller {
 	u8	configured_logical_drive_count;
 	__le32	configuration_signature;
-	u8	firmware_version[4];
+	u8	firmware_version_short[4];
 	u8	reserved[145];
 	__le16	extended_logical_unit_count;
 	u8	reserved1[34];
@@ -1403,11 +1403,17 @@ struct bmic_identify_controller {
 	u8	reserved2[8];
 	u8	vendor_id[8];
 	u8	product_id[16];
-	u8	reserved3[68];
+	u8	reserved3[62];
+	__le32	extra_controller_flags;
+	u8	reserved4[2];
 	u8	controller_mode;
-	u8	reserved4[32];
+	u8	spare_part_number[32];
+	u8	firmware_version_long[32];
 };
 
+/* constants for extra_controller_flags field of bmic_identify_controller */
+#define BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED	0x20000000
+
 struct bmic_sense_subsystem_info {
 	u8	reserved[44];
 	u8	ctrl_serial_number[16];
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 58e07e6bea4d..611e99b06028 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -7228,13 +7228,24 @@ static int pqi_get_ctrl_product_details(struct pqi_ctrl_info *ctrl_info)
 	if (rc)
 		goto out;
 
-	memcpy(ctrl_info->firmware_version, identify->firmware_version,
-		sizeof(identify->firmware_version));
-	ctrl_info->firmware_version[sizeof(identify->firmware_version)] = '\0';
-	snprintf(ctrl_info->firmware_version +
-		strlen(ctrl_info->firmware_version),
-		sizeof(ctrl_info->firmware_version),
-		"-%u", get_unaligned_le16(&identify->firmware_build_number));
+	if (get_unaligned_le32(&identify->extra_controller_flags) &
+		BMIC_IDENTIFY_EXTRA_FLAGS_LONG_FW_VERSION_SUPPORTED) {
+		memcpy(ctrl_info->firmware_version,
+			identify->firmware_version_long,
+			sizeof(identify->firmware_version_long));
+	} else {
+		memcpy(ctrl_info->firmware_version,
+			identify->firmware_version_short,
+			sizeof(identify->firmware_version_short));
+		ctrl_info->firmware_version
+			[sizeof(identify->firmware_version_short)] = '\0';
+		snprintf(ctrl_info->firmware_version +
+			strlen(ctrl_info->firmware_version),
+			sizeof(ctrl_info->firmware_version) -
+			sizeof(identify->firmware_version_short),
+			"-%u",
+			get_unaligned_le16(&identify->firmware_build_number));
+	}
 
 	memcpy(ctrl_info->model, identify->product_id,
 		sizeof(identify->product_id));
@@ -9761,13 +9772,23 @@ static void __attribute__((unused)) verify_structures(void)
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		configuration_signature) != 1);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
-		firmware_version) != 5);
+		firmware_version_short) != 5);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		extended_logical_unit_count) != 154);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		firmware_build_number) != 190);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		vendor_id) != 200);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		product_id) != 208);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		extra_controller_flags) != 286);
 	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
 		controller_mode) != 292);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		spare_part_number) != 293);
+	BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
+		firmware_version_long) != 325);
 
 	BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
 		phys_bay_in_box) != 115);
-- 
2.27.0