From 28324304350e23db24d679c55de3f06a5b1e40aa Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 3 Jul 2006 16:07:26 +0900 Subject: [PATCH] libata: implement ATA_EHI_RESUME_LINK Implement ATA_EHI_RESUME_LINK, which indicates that the link needs to be resumed. This used to be implied by ATA_EHI_HOTPLUGGED. However, hotplug isn't the only event which requires link resume and separating this out allows other places to request link resume. This differentiation also allows better debounce timing selection. This patch converts user scan to use ATA_EHI_RESUME_LINK. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 15 ++++++++------- drivers/scsi/libata-scsi.c | 1 + 2 files changed, 9 insertions(+), 7 deletions(-) (limited to 'drivers/scsi') diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index ccab1d7cead..90db054fa99 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2627,13 +2627,14 @@ int ata_std_prereset(struct ata_port *ap) const unsigned long *timing; int rc; - /* hotplug? */ - if (ehc->i.flags & ATA_EHI_HOTPLUGGED) { - if (ap->flags & ATA_FLAG_HRST_TO_RESUME) - ehc->i.action |= ATA_EH_HARDRESET; - if (ap->flags & ATA_FLAG_SKIP_D2H_BSY) - ata_wait_spinup(ap); - } + /* handle link resume & hotplug spinup */ + if ((ehc->i.flags & ATA_EHI_RESUME_LINK) && + (ap->flags & ATA_FLAG_HRST_TO_RESUME)) + ehc->i.action |= ATA_EH_HARDRESET; + + if ((ehc->i.flags & ATA_EHI_HOTPLUGGED) && + (ap->flags & ATA_FLAG_SKIP_D2H_BSY)) + ata_wait_spinup(ap); /* if we're about to do hardreset, nothing more to do */ if (ehc->i.action & ATA_EH_HARDRESET) diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 153452e7726..ba3e515f2b9 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -3011,6 +3011,7 @@ static int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel, if (dev) { ap->eh_info.probe_mask |= 1 << dev->devno; ap->eh_info.action |= ATA_EH_SOFTRESET; + ap->eh_info.flags |= ATA_EHI_RESUME_LINK; } else rc = -EINVAL; } -- cgit v1.2.3