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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-02-20 10:16:23 +0300 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-20 10:16:23 +0300 |
| commit | 5b2ffed906a3ebd4e52a5bbef06b99a517c53e4b (patch) | |
| tree | 2f900f89d93db6b0822d8bdf4f49851c581c12a6 /drivers/scsi/sata_vsc.c | |
| parent | f1b318793dcd2d9ff6b5ac06e7762098fa079cee (diff) | |
| parent | bd71c2b17468a2531fb4c81ec1d73520845e97e1 (diff) | |
| download | linux-5b2ffed906a3ebd4e52a5bbef06b99a517c53e4b.tar.xz | |
Merge branch 'master'
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 e124db8e8284..b574379a7a82 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++; + } + } } } |