AcoSail/kernel_optimize_test
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Merge branch 'upstream'

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This commit is contained in:
Jeff Garzik 2006-04-04 08:45:13 -04:00
commit 79fa1b677b
5 changed files with 13 additions and 5 deletions
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6
drivers/scsi/ahci.c
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@ -549,6 +549,12 @@ static int ahci_softreset(struct ata_port *ap, int verbose, unsigned int *class)
DPRINTK("ENTER\n");
if (!sata_dev_present(ap)) {
DPRINTK("PHY reports no device\n");
*class = ATA_DEV_NONE;
return 0;
}
/* prepare for SRST (AHCI-1.1 10.4.1) */
rc = ahci_stop_engine(ap);
if (rc) {

4
drivers/scsi/libata-core.c
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@ -76,6 +76,10 @@ int atapi_enabled = 1;
module_param(atapi_enabled, int, 0444);
MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
int atapi_dmadir = 0;
module_param(atapi_dmadir, int, 0444);
MODULE_PARM_DESC(atapi_dmadir, "Enable ATAPI DMADIR bridge support (0=off, 1=on)");
int libata_fua = 0;
module_param_named(fua, libata_fua, int, 0444);
MODULE_PARM_DESC(fua, "FUA support (0=off, 1=on)");

6
drivers/scsi/libata-scsi.c
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@ -2163,11 +2163,9 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd)
qc->tf.protocol = ATA_PROT_ATAPI_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
#ifdef ATAPI_ENABLE_DMADIR
/* some SATA bridges need us to indicate data xfer direction */
if (cmd->sc_data_direction != DMA_TO_DEVICE)
if (atapi_dmadir && (cmd->sc_data_direction != DMA_TO_DEVICE))
/* some SATA bridges need us to indicate data xfer direction */
qc->tf.feature |= ATAPI_DMADIR;
#endif
}
qc->nbytes = cmd->bufflen;

1
drivers/scsi/libata.h
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@ -41,6 +41,7 @@ struct ata_scsi_args {
/* libata-core.c */
extern int atapi_enabled;
extern int atapi_dmadir;
extern int libata_fua;
extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
struct ata_device *dev);

1
include/linux/libata.h
View File

@ -44,7 +44,6 @@
#undef ATA_NDEBUG /* define to disable quick runtime checks */
#undef ATA_ENABLE_PATA /* define to enable PATA support in some
* low-level drivers */
#undef ATAPI_ENABLE_DMADIR /* enables ATAPI DMADIR bridge support */
/* note: prints function name for you */