[SCSI] qla2xxx: Add Flash Descriptor Table layout support.

The Flash Descriptor Table (FDT) present on many recent HBAs
encodes flash accessing characteristics of the flash-part used on
the HBA.  Use this information during flash manipulation (writes)
rather than using specific hard-coded values based on queried
manufacturer and device IDs.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 5d19b0e49a62..38adc0f06e93 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1186,4 +1186,36 @@ struct vf_evfp_entry_24xx {
 };
 
 /* END MID Support ***********************************************************/
+
+/* Flash Description Table ***************************************************/
+
+struct qla_fdt_layout {
+        uint8_t sig[4];
+        uint16_t version;
+        uint16_t len;
+        uint16_t checksum;
+        uint8_t unused1[2];
+        uint8_t model[16];
+        uint16_t man_id;
+        uint16_t id;
+        uint8_t flags;
+        uint8_t erase_cmd;
+        uint8_t alt_erase_cmd;
+        uint8_t wrt_enable_cmd;
+        uint8_t wrt_enable_bits;
+        uint8_t wrt_sts_reg_cmd;
+        uint8_t unprotect_sec_cmd;
+        uint8_t read_man_id_cmd;
+        uint32_t block_size;
+        uint32_t alt_block_size;
+        uint32_t flash_size;
+        uint32_t wrt_enable_data;
+        uint8_t read_id_addr_len;
+        uint8_t wrt_disable_bits;
+        uint8_t read_dev_id_len;
+        uint8_t chip_erase_cmd;
+        uint16_t read_timeout;
+        uint8_t protect_sec_cmd;
+        uint8_t unused2[65];
+};
 #endif