[SCSI] qla2xxx: Increase speed of flash access in ISP82xx adapters to improve firmwar...

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 0a2f2d5..b0df7da 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -908,27 +908,37 @@ qla82xx_wait_rom_done(struct qla_hw_data *ha)
        return 0;
 }
 
+int
+qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
+{
+       uint32_t  off_value, rval = 0;
+
+       WRT_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase),
+           (off & 0xFFFF0000));
+
+       /* Read back value to make sure write has gone through */
+       RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
+       off_value  = (off & 0x0000FFFF);
+
+       if (flag)
+               WRT_REG_DWORD((void *)
+                   (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
+                   data);
+       else
+               rval = RD_REG_DWORD((void *)
+                   (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
+
+       return rval;
+}
+
 static int
 qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
 {
-       scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
+       /* Dword reads to flash. */
+       qla82xx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW, (addr & 0xFFFF0000), 1);
+       *valp = qla82xx_md_rw_32(ha, MD_DIRECT_ROM_READ_BASE +
+           (addr & 0x0000FFFF), 0, 0);
 
-       qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
-       qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
-       qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
-       qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
-       qla82xx_wait_rom_busy(ha);
-       if (qla82xx_wait_rom_done(ha)) {
-               ql_log(ql_log_fatal, vha, 0x00ba,
-                   "Error waiting for rom done.\n");
-               return -1;
-       }
-       /* Reset abyte_cnt and dummy_byte_cnt */
-       qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
-       udelay(10);
-       cond_resched();
-       qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
-       *valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
        return 0;
 }
 
@@ -3639,29 +3649,6 @@ qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
 }
 
 /* Minidump related functions */
-int
-qla82xx_md_rw_32(struct qla_hw_data *ha, uint32_t off, u32 data, uint8_t flag)
-{
-       uint32_t  off_value, rval = 0;
-
-       WRT_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase),
-           (off & 0xFFFF0000));
-
-       /* Read back value to make sure write has gone through */
-       RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
-       off_value  = (off & 0x0000FFFF);
-
-       if (flag)
-               WRT_REG_DWORD((void *)
-                   (off_value + CRB_INDIRECT_2M + ha->nx_pcibase),
-                   data);
-       else
-               rval = RD_REG_DWORD((void *)
-                   (off_value + CRB_INDIRECT_2M + ha->nx_pcibase));
-
-       return rval;
-}
-
 static int
 qla82xx_minidump_process_control(scsi_qla_host_t *vha,
        qla82xx_md_entry_hdr_t *entry_hdr, uint32_t **d_ptr)