Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-24 05:02:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'mv-merge'

Browse Source 
Conflicts:

	drivers/scsi/sata_mv.c
This commit is contained in:
Jeff Garzik 2006-03-29 19:43:31 -05:00
commit 55d8ca4f80
1 changed files with 24 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/scsi/sata_mv.c
View File

@ -1010,7 +1010,7 @@ static void mv_fill_sg(struct ata_queued_cmd *qc)
pp->sg_tbl[i].addr = cpu_to_le32(addr & 0xffffffff);
pp->sg_tbl[i].addr_hi = cpu_to_le32((addr >> 16) >> 16);
pp->sg_tbl[i].flags_size = cpu_to_le32(len);
pp->sg_tbl[i].flags_size = cpu_to_le32(len & 0xffff);
sg_len -= len;
addr += len;
@ -1350,7 +1350,6 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
{
void __iomem *mmio = host_set->mmio_base;
void __iomem *hc_mmio = mv_hc_base(mmio, hc);
struct ata_port *ap;
struct ata_queued_cmd *qc;
u32 hc_irq_cause;
int shift, port, port0, hard_port, handled;
@ -1373,25 +1372,32 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
for (port = port0; port < port0 + MV_PORTS_PER_HC; port++) {
u8 ata_status = 0;
ap = host_set->ports[port];
struct ata_port *ap = host_set->ports[port];
struct mv_port_priv *pp = ap->private_data;
hard_port = port & MV_PORT_MASK; /* range 0-3 */
handled = 0; /* ensure ata_status is set if handled++ */
if ((CRPB_DMA_DONE << hard_port) & hc_irq_cause) {
/* new CRPB on the queue; just one at a time until NCQ
*/
ata_status = mv_get_crpb_status(ap);
handled++;
} else if ((DEV_IRQ << hard_port) & hc_irq_cause) {
/* received ATA IRQ; read the status reg to clear INTRQ
*/
ata_status = readb((void __iomem *)
/* Note that DEV_IRQ might happen spuriously during EDMA,
* and should be ignored in such cases. We could mask it,
* but it's pretty rare and may not be worth the overhead.
*/
if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) {
/* EDMA: check for response queue interrupt */
if ((CRPB_DMA_DONE << hard_port) & hc_irq_cause) {
ata_status = mv_get_crpb_status(ap);
handled = 1;
}
} else {
/* PIO: check for device (drive) interrupt */
if ((DEV_IRQ << hard_port) & hc_irq_cause) {
ata_status = readb((void __iomem *)
ap->ioaddr.status_addr);
handled++;
handled = 1;
}
}
if (ap &&
(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR)))
if (ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))
continue;
err_mask = ac_err_mask(ata_status);
@ -1403,12 +1409,12 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
if ((PORT0_ERR << shift) & relevant) {
mv_err_intr(ap);
err_mask |= AC_ERR_OTHER;
handled++;
handled = 1;
}
if (handled && ap) {
if (handled) {
qc = ata_qc_from_tag(ap, ap->active_tag);
if (NULL != qc) {
if (qc && (qc->flags & ATA_QCFLAG_ACTIVE)) {
VPRINTK("port %u IRQ found for qc, "
"ata_status 0x%x\n", port,ata_status);
/* mark qc status appropriately */