[SCSI] qla2xxx: Add Flash-Access-Control support for recent ISPs.
Given the low-level interface varies from one flash-part
manufacturer to the next, the Flash-Access-Control (FAC) mailbox
command makes the specific flash type transparent to the driver
by encapsulating a basic set of accessor and update routines.
Use these new routines where applicable by querying FAC opcode
get-sector-size at init-time.
Additional cleanups and
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 05cf838..9830193 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1403,6 +1403,20 @@
#define MBA_IDC_TIME_EXT 0x8102
#define MBC_IDC_ACK 0x101
+#define MBC_FLASH_ACCESS_CTRL 0x3e /* Control flash access. */
+
+/* Flash access control option field bit definitions */
+#define FAC_OPT_FORCE_SEMAPHORE BIT_15
+#define FAC_OPT_REQUESTOR_ID BIT_14
+#define FAC_OPT_CMD_SUBCODE 0xff
+
+/* Flash access control command subcodes */
+#define FAC_OPT_CMD_WRITE_PROTECT 0x00
+#define FAC_OPT_CMD_WRITE_ENABLE 0x01
+#define FAC_OPT_CMD_ERASE_SECTOR 0x02
+#define FAC_OPT_CMD_LOCK_SEMAPHORE 0x03
+#define FAC_OPT_CMD_UNLOCK_SEMAPHORE 0x04
+#define FAC_OPT_CMD_GET_SECTOR_SIZE 0x05
struct nvram_81xx {
/* NVRAM header. */
