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[SCSI] qla2xxx: Consolidate ISP24xx chip reset logic.

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Consolidate ISP24xx chip reset logic.

Consolidate near-duplicate RISC reset logic from
qla24xx_reset_chip() and qla24xx_chip_diag().  Also, after
initiating a soft-reset, insure the firmware has completed
all NVRAM accesses before continuing.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Andrew Vasquez 2005-07-08 17:59:26 -07:00 committed by James Bottomley
parent f0883ac6a7
commit 88c2666351
2 changed files with 42 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/scsi/qla2xxx/qla_dbg.c
View File

@ -1526,6 +1526,17 @@ qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
WRT_REG_DWORD(&reg->ctrl_status,
CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
RD_REG_DWORD(&reg->ctrl_status);
/* Wait for firmware to complete NVRAM accesses. */
udelay(5);
mb[0] = (uint32_t) RD_REG_WORD(&reg->mailbox0);
for (cnt = 10000 ; cnt && mb[0]; cnt--) {
udelay(5);
mb[0] = (uint32_t) RD_REG_WORD(&reg->mailbox0);
barrier();
}
udelay(20);
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_DWORD(&reg->ctrl_status) &

78
drivers/scsi/qla2xxx/qla_init.c
View File

@ -564,20 +564,18 @@ qla2x00_reset_chip(scsi_qla_host_t *ha)
}
/**
* qla24xx_reset_chip() - Reset ISP24xx chip.
* qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
* @ha: HA context
*
* Returns 0 on success.
*/
void
qla24xx_reset_chip(scsi_qla_host_t *ha)
static inline void
qla24xx_reset_risc(scsi_qla_host_t *ha)
{
unsigned long flags = 0;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
uint32_t cnt, d2;
ha->isp_ops.disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Reset RISC. */
@ -591,6 +589,17 @@ qla24xx_reset_chip(scsi_qla_host_t *ha)
WRT_REG_DWORD(&reg->ctrl_status,
CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
RD_REG_DWORD(&reg->ctrl_status);
/* Wait for firmware to complete NVRAM accesses. */
udelay(5);
d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
for (cnt = 10000 ; cnt && d2; cnt--) {
udelay(5);
d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
barrier();
}
udelay(20);
d2 = RD_REG_DWORD(&reg->ctrl_status);
for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
@ -618,6 +627,21 @@ qla24xx_reset_chip(scsi_qla_host_t *ha)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
/**
* qla24xx_reset_chip() - Reset ISP24xx chip.
* @ha: HA context
*
* Returns 0 on success.
*/
void
qla24xx_reset_chip(scsi_qla_host_t *ha)
{
ha->isp_ops.disable_intrs(ha);
/* Perform RISC reset. */
qla24xx_reset_risc(ha);
}
/**
* qla2x00_chip_diag() - Test chip for proper operation.
* @ha: HA context
@ -753,49 +777,9 @@ int
qla24xx_chip_diag(scsi_qla_host_t *ha)
{
int rval;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
unsigned long flags = 0;
uint32_t cnt, d2;
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Reset RISC. */
WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_DWORD(&reg->ctrl_status) &
CSRX_DMA_ACTIVE) == 0)
break;
udelay(10);
}
WRT_REG_DWORD(&reg->ctrl_status,
CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
udelay(20);
d2 = RD_REG_DWORD(&reg->ctrl_status);
for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
udelay(5);
d2 = RD_REG_DWORD(&reg->ctrl_status);
barrier();
}
WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
RD_REG_DWORD(&reg->hccr);
WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
RD_REG_DWORD(&reg->hccr);
WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
RD_REG_DWORD(&reg->hccr);
d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
for (cnt = 6000000 ; cnt && d2; cnt--) {
udelay(5);
d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
barrier();
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Perform RISC reset. */
qla24xx_reset_risc(ha);
ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;