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| author | Kumar Gala <galak@kernel.crashing.org> | 2006-02-28 11:25:22 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2006-02-28 11:25:22 -0600 |
| commit | 9585da3729e7e27bf22818625c10ac6c64ebb609 (patch) | |
| tree | 8c8d46f7f2cc933fdf75a6a75cf593a63f7b8717 /drivers/scsi/sata_vsc.c | |
| parent | 8080d5497146d5d27d9e8e78229d1adc7fe280cf (diff) | |
| parent | 6749c5507388f3fc3719f57a54b540ee83f6661a (diff) | |
| download | linux-9585da3729e7e27bf22818625c10ac6c64ebb609.tar.gz linux-9585da3729e7e27bf22818625c10ac6c64ebb609.tar.bz2 linux-9585da3729e7e27bf22818625c10ac6c64ebb609.zip | |
Merge branch 'master' of git+ssh://galak@master.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
Diffstat (limited to 'drivers/scsi/sata_vsc.c')
| -rw-r--r-- | drivers/scsi/sata_vsc.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c index 2e2c3b7acb0c..e484e8db6810 100644 --- a/drivers/scsi/sata_vsc.c +++ b/drivers/scsi/sata_vsc.c @@ -81,6 +81,19 @@ /* Port stride */ #define VSC_SATA_PORT_OFFSET 0x200 +/* Error interrupt status bit offsets */ +#define VSC_SATA_INT_ERROR_E_OFFSET 2 +#define VSC_SATA_INT_ERROR_P_OFFSET 4 +#define VSC_SATA_INT_ERROR_T_OFFSET 5 +#define VSC_SATA_INT_ERROR_M_OFFSET 1 +#define is_vsc_sata_int_err(port_idx, int_status) \ + (int_status & ((1 << (VSC_SATA_INT_ERROR_E_OFFSET + (8 * port_idx))) | \ + (1 << (VSC_SATA_INT_ERROR_P_OFFSET + (8 * port_idx))) | \ + (1 << (VSC_SATA_INT_ERROR_T_OFFSET + (8 * port_idx))) | \ + (1 << (VSC_SATA_INT_ERROR_M_OFFSET + (8 * port_idx))) \ + )\ + ) + static u32 vsc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg) { @@ -201,13 +214,28 @@ static irqreturn_t vsc_sata_interrupt (int irq, void *dev_instance, struct ata_port *ap; ap = host_set->ports[i]; + + if (is_vsc_sata_int_err(i, int_status)) { + u32 err_status; + printk(KERN_DEBUG "%s: ignoring interrupt(s)\n", __FUNCTION__); + err_status = ap ? vsc_sata_scr_read(ap, SCR_ERROR) : 0; + vsc_sata_scr_write(ap, SCR_ERROR, err_status); + handled++; + } + if (ap && !(ap->flags & (ATA_FLAG_PORT_DISABLED|ATA_FLAG_NOINTR))) { struct ata_queued_cmd *qc; qc = ata_qc_from_tag(ap, ap->active_tag); - if (qc && (!(qc->tf.ctl & ATA_NIEN))) + if (qc && (!(qc->tf.ctl & ATA_NIEN))) { handled += ata_host_intr(ap, qc); + } else { + printk(KERN_DEBUG "%s: ignoring interrupt(s)\n", __FUNCTION__); + ata_chk_status(ap); + handled++; + } + } } } |