[SCSI] qla4xxx: Boot from SAN support for open-iscsi

Hook qla4xxx in fw boot sysfs interface so iscsi tools
can use the info to create boot sessions.

Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 20 insertions, 1 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 99098d51543b..9dc439b0d75f 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -146,6 +146,13 @@ struct isp_reg {
 #define QL4022_NVRAM_SEM_MASK   (QL4022_RESOURCE_MASK_BASE_CODE << (10+16))
 #define QL4022_FLASH_SEM_MASK   (QL4022_RESOURCE_MASK_BASE_CODE << (13+16))
 
+/* nvram address for 4032 */
+#define NVRAM_PORT0_BOOT_MODE           0x03b1
+#define NVRAM_PORT0_BOOT_PRI_TGT        0x03b2
+#define NVRAM_PORT0_BOOT_SEC_TGT        0x03bb
+#define NVRAM_PORT1_BOOT_MODE           0x07b1
+#define NVRAM_PORT1_BOOT_PRI_TGT        0x07b2
+#define NVRAM_PORT1_BOOT_SEC_TGT        0x07bb
 
 
 /* Page # defines for 4022 */
@@ -298,6 +305,7 @@ struct qla_flt_header {
 #define FLT_REG_FW_82           0x74
 #define FLT_REG_GOLD_FW_82      0x75
 #define FLT_REG_BOOT_CODE_82    0x78
+#define FLT_REG_ISCSI_PARAM     0x65
 
 struct qla_flt_region {
         uint32_t code;
@@ -733,7 +741,10 @@ struct dev_db_entry {
         uint8_t tcp_rcv_wsf;    /* 1C7 */
         uint32_t stat_sn;       /* 1C8-1CB */
         uint32_t exp_stat_sn;   /* 1CC-1CF */
-        uint8_t res6[0x30];     /* 1D0-1FF */
+        uint8_t res6[0x2b];     /* 1D0-1FB */
+#define DDB_VALID_COOKIE        0x9034
+        uint16_t cookie;        /* 1FC-1FD */
+        uint16_t len;           /* 1FE-1FF */
 };
 
 /*************************************************************************/
@@ -745,6 +756,14 @@ struct dev_db_entry {
 #define FLASH_EOF_OFFSET        (FLASH_DEFAULTBLOCKSIZE-8) /* 4 bytes
                                                             * for EOF
                                                             * signature */
+#define FLASH_RAW_ACCESS_ADDR   0x8e000000
+
+#define BOOT_PARAM_OFFSET_PORT0 0x3b0
+#define BOOT_PARAM_OFFSET_PORT1 0x7b0
+
+#define FLASH_OFFSET_DB_INFO    0x05000000
+#define FLASH_OFFSET_DB_END     (FLASH_OFFSET_DB_INFO + 0x7fff)
+
 
 struct sys_info_phys_addr {
         uint8_t address[6];     /* 00-05 */