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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2005-07-08 17:59:26 -0700
committerJames Bottomley <jejb@mulgrave.(none)>2005-07-14 11:15:31 -0400
commit88c2666351f41a7d4459e79594f687a356f5e57c (patch)
treea07eb04ead61e0aa61d22cde8963f1b74f9b0891 /drivers/scsi
parentf0883ac6a74b403f0f2e91166ba06227cc4690e6 (diff)
downloadop-kernel-dev-88c2666351f41a7d4459e79594f687a356f5e57c.zip
op-kernel-dev-88c2666351f41a7d4459e79594f687a356f5e57c.tar.gz
[SCSI] qla2xxx: Consolidate ISP24xx chip reset logic.
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>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/qla2xxx/qla_dbg.c11
-rw-r--r--drivers/scsi/qla2xxx/qla_init.c78
2 files changed, 42 insertions, 47 deletions
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index a20450e..72bbaa9 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -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) &
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 3fd6380..1a25714 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -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--) {
@@ -619,6 +628,21 @@ qla24xx_reset_chip(scsi_qla_host_t *ha)
}
/**
+ * 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;
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