From baa1e78a834c917984a4659fd282f712c17ee3bf Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 1 Nov 2006 18:39:27 +0900 Subject: [PATCH] libata: implement ATA_EHI_SETMODE and ATA_EHI_POST_SETMODE libata EH used to perform ata_set_mode() iff the EH session performed reset as indicated by ATA_EHI_DID_RESET. This is incorrect because ->dev_config() called by revalidation is allowed to modify transfer mode which ata_set_mode() should take care of. This patch implements the following two flags. * ATA_EHI_SETMODE: set during EH to schedule ata_set_mode(). Both new device attachment and revalidation set this flag. * ATA_EHI_POST_SETMODE: set while the device is revalidated after ata_set_mode(). Post-setmode revalidation is different from initial configuaration and EH revalidation in that ->dev_config() is not allowed tune transfer mode. LLD can use this flag to determine whether it's allowed to tune transfer mode. Note that POST_SETMODE ->dev_config() is guaranteed to be preceded by non-POST_SETMODE ->dev_config(). Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- include/linux/libata.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/libata.h b/include/linux/libata.h index 949484627e6..0d0ddeaee73 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -284,6 +284,8 @@ enum { ATA_EHI_DID_RESET = (1 << 16), /* already reset this port */ ATA_EHI_PRINTINFO = (1 << 17), /* print configuration info */ + ATA_EHI_SETMODE = (1 << 18), /* configure transfer mode */ + ATA_EHI_POST_SETMODE = (1 << 19), /* revaildating after setmode */ ATA_EHI_RESET_MODIFIER_MASK = ATA_EHI_RESUME_LINK, -- cgit v1.2.3