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Code Issues Releases Activity

Change the default to switch on DMA on ATAPI devices if they can

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do UDMA2 (ATA33) mode and beyond.
This commit is contained in:
Søren Schmidt 2004-08-01 12:31:38 +00:00
parent d064d6db4b
commit 601d3a344e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=132958
1 changed files with 5 additions and 3 deletions
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8
sys/dev/ata/ata-all.c
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@ -84,7 +84,7 @@ int ata_wc = 1;
/* local vars */
static int ata_dma = 1;
static int atapi_dma = 0;
static int atapi_dma = 1;
/* sysctl vars */
SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
@ -682,7 +682,8 @@ ata_identify_devices(struct ata_channel *ch)
if (ch->device[MASTER].param) {
ch->device[MASTER].setmode(&ch->device[MASTER], ATA_PIO_MAX);
if ((((ch->devices & ATA_ATAPI_MASTER) && atapi_dma &&
(ch->device[MASTER].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR)||
(ch->device[MASTER].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR &&
ata_umode(ch->device[MASTER].param) >= ATA_UDMA2) ||
((ch->devices & ATA_ATA_MASTER) && ata_dma)) && ch->dma)
ch->device[MASTER].setmode(&ch->device[MASTER], ATA_DMA_MAX);
@ -690,7 +691,8 @@ ata_identify_devices(struct ata_channel *ch)
if (ch->device[SLAVE].param) {
ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_PIO_MAX);
if ((((ch->devices & ATA_ATAPI_SLAVE) && atapi_dma &&
(ch->device[SLAVE].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR) ||
(ch->device[SLAVE].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR &&
ata_umode(ch->device[SLAVE].param) >= ATA_UDMA2) ||
((ch->devices & ATA_ATA_SLAVE) && ata_dma)) && ch->dma)
ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_DMA_MAX);
}