[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>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 0febfa648c34..c37888e8747d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1032,6 +1032,21 @@ qla2x00_setup_chip(scsi_qla_host_t *vha)
                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
         }
 
+        if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
+                uint32_t size;
+
+                rval = qla81xx_fac_get_sector_size(vha, &size);
+                if (rval == QLA_SUCCESS) {
+                        ha->flags.fac_supported = 1;
+                        ha->fdt_block_size = size << 2;
+                } else {
+                        qla_printk(KERN_ERR, ha,
+                            "Unsupported FAC firmware (%d.%02d.%02d).\n",
+                            ha->fw_major_version, ha->fw_minor_version,
+                            ha->fw_subminor_version);
+                }
+        }
+
         if (rval) {
                 DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
                     vha->host_no));