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authorArjan van de Ven <arjan@infradead.org>2009-05-13 14:02:42 (GMT)
committerJeff Garzik <jgarzik@redhat.com>2009-06-10 15:05:34 (GMT)
commit517d3cc15b36392e518abab6bacbb72089658313 (patch)
tree9a3565de854416352468cd1adc6666cc45eed3bc
parent7f4774b38ee6270bbc6c3015cb3fa6c415ffb340 (diff)
downloadlinux-fsl-qoriq-517d3cc15b36392e518abab6bacbb72089658313.tar.xz
[libata] ata_piix: Enable parallel scan
This patch turns on parallel scanning for the ata_piix driver. This driver is used on most netbooks (no AHCI for cheap storage it seems). The scan is the dominating time factor in the kernel boot for these devices; with this flag it gets cut in half for the device I used for testing (eeepc). Alan took a look at the driver source and concluded that it ought to be safe to do for this driver. Alan has also checked with the hardware team. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--drivers/ata/ata_piix.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 6e165bf..d0a14cf 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1589,6 +1589,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev,
host->ports[1]->mwdma_mask = 0;
host->ports[1]->udma_mask = 0;
}
+ host->flags |= ATA_HOST_PARALLEL_SCAN;
pci_set_master(pdev);
return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht);