Re: [PATCH libata-dev-2.6 02/05] libata: AHCI error handling fix

From: Brett Russ
Date: Thu Mar 17 2005 - 17:24:33 EST


02_libata_ahci-err-int.patch

(included in libata-2.6) Fixes AHCI bits during handling of
fatal error int.

Signed-off-by: Brett Russ <russb@xxxxxxx>

ahci.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

Index: libata-dev-2.6/drivers/scsi/ahci.c
===================================================================
--- libata-dev-2.6.orig/drivers/scsi/ahci.c 2005-03-17 17:16:57.000000000 -0500
+++ libata-dev-2.6/drivers/scsi/ahci.c 2005-03-17 17:16:57.000000000 -0500
@@ -548,7 +548,7 @@ static void ahci_intr_error(struct ata_p

/* stop DMA */
tmp = readl(port_mmio + PORT_CMD);
- tmp &= PORT_CMD_START | PORT_CMD_FIS_RX;
+ tmp &= ~PORT_CMD_START;
writel(tmp, port_mmio + PORT_CMD);

/* wait for engine to stop. TODO: this could be
@@ -580,7 +580,7 @@ static void ahci_intr_error(struct ata_p

/* re-start DMA */
tmp = readl(port_mmio + PORT_CMD);
- tmp |= PORT_CMD_START | PORT_CMD_FIS_RX;
+ tmp |= PORT_CMD_START;
writel(tmp, port_mmio + PORT_CMD);
readl(port_mmio + PORT_CMD); /* flush */


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