forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

libata: implement ATA_FLAG_IGN_SIMPLEX and use it in sata_uli

Browse source 
Some uli controllers have stuck SIMPLEX bit which can't be cleared
with ata_pci_clear_simplex(), but the controller is capable of doing
DMAs on both channels simultaneously.  Implement ATA_FLAG_IGN_SIMPLEX
which makes libata ignore the simplex bit and use it in sata_uli.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-01-25 19:40:05 +09:00 • committed by Jeff Garzik
parent 0291f95fdb
commit b2a8bbe67d
3 changed files with 11 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/linux/libata.h
View file

@ -177,6 +177,7 @@ enum {
* Register FIS clearing BSY */
ATA_FLAG_DEBUGMSG = (1 << 13),
ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */
/* The following flag belongs to ap->pflags but is kept in
* ap->flags because it's referenced in many LLDs and will be