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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-05 02:58:32 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-05 02:58:32 -0400 |
| commit | 67846b30171cc4d706125f630193a76a26bb334a (patch) | |
| tree | 5ba70c2b68086f471686eb1e56e38436eaf73416 /drivers/scsi/ahci.c | |
| parent | 643736a58d2668af94aee05670c5e9ae76e7b85f (diff) | |
| download | linux-67846b30171cc4d706125f630193a76a26bb334a.tar.bz2 | |
libata: add ata_ratelimit(), use it in AHCI driver irq handler
Diffstat (limited to 'drivers/scsi/ahci.c')
| -rw-r--r-- | drivers/scsi/ahci.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index c2c8fa828e24..5ec866b00479 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -672,17 +672,36 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs * for (i = 0; i < host_set->n_ports; i++) { struct ata_port *ap; - u32 tmp; - VPRINTK("port %u\n", i); + if (!(irq_stat & (1 << i))) + continue; + ap = host_set->ports[i]; - tmp = irq_stat & (1 << i); - if (tmp && ap) { + if (ap) { struct ata_queued_cmd *qc; qc = ata_qc_from_tag(ap, ap->active_tag); - if (ahci_host_intr(ap, qc)) - irq_ack |= (1 << i); + if (!ahci_host_intr(ap, qc)) + if (ata_ratelimit()) { + struct pci_dev *pdev = + to_pci_dev(ap->host_set->dev); + printk(KERN_WARNING + "ahci(%s): unhandled interrupt on port %u\n", + pci_name(pdev), i); + } + + VPRINTK("port %u\n", i); + } else { + VPRINTK("port %u (no irq)\n", i); + if (ata_ratelimit()) { + struct pci_dev *pdev = + to_pci_dev(ap->host_set->dev); + printk(KERN_WARNING + "ahci(%s): interrupt on disabled port %u\n", + pci_name(pdev), i); + } } + + irq_ack |= (1 << i); } if (irq_ack) { |