AcoSail/kernel_optimize_test
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Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-2.6.git

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This commit is contained in:
Linus Torvalds 2005-05-17 08:55:00 -07:00
commit ad542ef5b2
4 changed files with 19 additions and 7 deletions
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12
drivers/scsi/libata-core.c
View File

@ -1253,11 +1253,11 @@ void __sata_phy_reset(struct ata_port *ap)
unsigned long timeout = jiffies + (HZ * 5);
if (ap->flags & ATA_FLAG_SATA_RESET) {
scr_write(ap, SCR_CONTROL, 0x301); /* issue phy wake/reset */
scr_read(ap, SCR_STATUS); /* dummy read; flush */
/* issue phy wake/reset */
scr_write_flush(ap, SCR_CONTROL, 0x301);
udelay(400); /* FIXME: a guess */
}
scr_write(ap, SCR_CONTROL, 0x300); /* issue phy wake/clear reset */
scr_write_flush(ap, SCR_CONTROL, 0x300); /* phy wake/clear reset */
/* wait for phy to become ready, if necessary */
do {
@ -2539,7 +2539,7 @@ static void atapi_request_sense(struct ata_port *ap, struct ata_device *dev,
ata_sg_init_one(qc, cmd->sense_buffer, sizeof(cmd->sense_buffer));
qc->dma_dir = DMA_FROM_DEVICE;
memset(&qc->cdb, 0, sizeof(ap->cdb_len));
memset(&qc->cdb, 0, ap->cdb_len);
qc->cdb[0] = REQUEST_SENSE;
qc->cdb[4] = SCSI_SENSE_BUFFERSIZE;
@ -2811,6 +2811,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
/* call completion callback */
rc = qc->complete_fn(qc, drv_stat);
qc->flags &= ~ATA_QCFLAG_ACTIVE;
/* if callback indicates not to complete command (non-zero),
* return immediately
@ -3229,7 +3230,8 @@ irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
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)) &&
(qc->flags & ATA_QCFLAG_ACTIVE))
handled |= ata_host_intr(ap, qc);
}
}

5
drivers/scsi/libata-scsi.c
View File

@ -347,7 +347,10 @@ int ata_scsi_slave_config(struct scsi_device *sdev)
*/
if ((dev->flags & ATA_DFLAG_LBA48) &&
((dev->flags & ATA_DFLAG_LOCK_SECTORS) == 0)) {
sdev->host->max_sectors = 2048;
/*
* do not overwrite sdev->host->max_sectors, since
* other drives on this host may not support LBA48
*/
blk_queue_max_sectors(sdev->request_queue, 2048);
}
}

2
drivers/scsi/sata_svw.c
View File

@ -395,7 +395,7 @@ static int k2_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
/* Clear a magic bit in SCR1 according to Darwin, those help
* some funky seagate drives (though so far, those were already
* set by the firmware on the machines I had access to
* set by the firmware on the machines I had access to)
*/
writel(readl(mmio_base + K2_SATA_SICR1_OFFSET) & ~0x00040000,
mmio_base + K2_SATA_SICR1_OFFSET);

7
include/linux/libata.h
View File

@ -584,6 +584,13 @@ static inline void scr_write(struct ata_port *ap, unsigned int reg, u32 val)
ap->ops->scr_write(ap, reg, val);
}
static inline void scr_write_flush(struct ata_port *ap, unsigned int reg,
u32 val)
{
ap->ops->scr_write(ap, reg, val);
(void) ap->ops->scr_read(ap, reg);
}
static inline unsigned int sata_dev_present(struct ata_port *ap)
{
return ((scr_read(ap, SCR_STATUS) & 0xf) == 0x3) ? 1 : 0;