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

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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>
This commit is contained in:
Chad Dupuis 2012-02-09 11:15:41 -08:00 committed by James Bottomley
parent aa61556fa3
commit 2b29d96d71
1 changed files with 27 additions and 40 deletions
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67
drivers/scsi/qla2xxx/qla_nx.c
View file

@ -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)