linux-kernel - nvida sata controller CK804 and NCQ not working on linux-2.6.28||29.1

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Message-ID: <8260162D332466469A1DD3FB317C18882E665616BA@GRFMBX706RM001.griffon.local>
Date:	Tue, 7 Apr 2009 23:34:59 +0200
From:	Genoni Luigi <luigi.genoni@...ecomitalia.it>
To:	"jgarzik@...ox.com" <jgarzik@...ox.com>,
	"tj@...nel.org" <tj@...nel.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: nvida sata controller CK804  and  NCQ not working on
 linux-2.6.28||29.1

Hi,
to make NCQ work with nvidia sata CK804 I had to introduce this simple
change into sata-nv.c. Is there some reason I am missing why adma_enable is
not by default one, so later in the dome NCQ is not enabled?

--- linux/drivers/ata/sata_nv.c.old     2009-04-06 14:56:19.000000000 +0200
+++ linux/drivers/ata/sata_nv.c 2009-04-06 14:56:24.000000000 +0200
@@ -577,7 +577,7 @@
 MODULE_DEVICE_TABLE(pci, nv_pci_tbl);
 MODULE_VERSION(DRV_VERSION);

-static int adma_enabled;
+static int adma_enabled = 1;
 static int swncq_enabled = 1;

 static void nv_adma_register_mode(struct ata_port *ap)

regards

Luigi Genoni

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