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[SCSI] qla2xxx: Move RISC-interrupt-register modifications to qla2x00_request_irqs(). 

There's no functional change involved with this update, instead
it simply migrates the "set cleared interrupt state" codes to a
more approprate method, qla2x00_request_irqs(), and cleans-up the
driver's probe() logic.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Andrew Vasquez 2008-01-31 12:33:50 -08:00 committed by James Bottomley
parent 3db0652ef9
commit 963b0fdd3a
2 changed files with 22 additions and 23 deletions
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27
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -1815,6 +1815,8 @@ int
qla2x00_request_irqs(scsi_qla_host_t *ha)
{
int ret;
device_reg_t __iomem *reg = ha->iobase;
unsigned long flags;
/* If possible, enable MSI-X. */
if (!IS_QLA2432(ha) && !IS_QLA2532(ha))
@ -1846,7 +1848,7 @@ qla2x00_request_irqs(scsi_qla_host_t *ha)
DEBUG2(qla_printk(KERN_INFO, ha,
"MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
ha->fw_attributes));
return ret;
goto clear_risc_ints;
}
qla_printk(KERN_WARNING, ha,
"MSI-X: Falling back-to INTa mode -- %d.\n", ret);
@ -1864,15 +1866,30 @@ skip_msi:
ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
if (!ret) {
ha->flags.inta_enabled = 1;
ha->host->irq = ha->pdev->irq;
} else {
if (ret) {
qla_printk(KERN_WARNING, ha,
"Failed to reserve interrupt %d already in use.\n",
ha->pdev->irq);
goto fail;
}
ha->flags.inta_enabled = 1;
ha->host->irq = ha->pdev->irq;
clear_risc_ints:
ha->isp_ops->disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
if (IS_FWI2_CAPABLE(ha)) {
WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
} else {
WRT_REG_WORD(&reg->isp.semaphore, 0);
WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
ha->isp_ops->enable_intrs(ha);
fail:
return ret;
}

18
drivers/scsi/qla2xxx/qla_os.c
View File

@ -1576,10 +1576,8 @@ static int __devinit
qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
int ret = -ENODEV;
device_reg_t __iomem *reg;
struct Scsi_Host *host;
scsi_qla_host_t *ha;
unsigned long flags = 0;
char pci_info[30];
char fw_str[30];
struct scsi_host_template *sht;
@ -1769,22 +1767,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
ha->host_no, ha));
ha->isp_ops->disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
reg = ha->iobase;
if (IS_FWI2_CAPABLE(ha)) {
WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
} else {
WRT_REG_WORD(&reg->isp.semaphore, 0);
WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
ha->isp_ops->enable_intrs(ha);
pci_set_drvdata(pdev, ha);
ha->flags.init_done = 1;