From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=58393 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PQItg-0006Dw-ME for qemu-devel@nongnu.org; Wed, 08 Dec 2010 07:13:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PQItf-0007ed-Ab for qemu-devel@nongnu.org; Wed, 08 Dec 2010 07:13:24 -0500 Received: from cantor.suse.de ([195.135.220.2]:33233 helo=mx1.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PQIte-0007dn-Vt for qemu-devel@nongnu.org; Wed, 08 Dec 2010 07:13:23 -0500 From: Alexander Graf Date: Wed, 8 Dec 2010 13:13:13 +0100 Message-Id: <1291810400-11309-7-git-send-email-agraf@suse.de> In-Reply-To: <1291810400-11309-1-git-send-email-agraf@suse.de> References: <1291810400-11309-1-git-send-email-agraf@suse.de> Subject: [Qemu-devel] [PATCH 06/13] ide: add ncq identify data for ahci sata drives List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: QEMU-devel Developers Cc: Kevin Wolf , Joerg Roedel , Paul Brook , Blue Swirl , Gerd Hoffmann , Stefan Hajnoczi , tj@kernel.org, Roland Elek , Sebastian Herbszt From: Roland Elek I modified ide_identify() to include the zero-based queue length value in word 75, and set bit 8 in word 76 to signal NCQ support in the identify data for AHCI SATA drives. Signed-off-by: Roland Elek --- hw/ide/core.c | 7 +++++++ hw/ide/internal.h | 2 ++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/hw/ide/core.c b/hw/ide/core.c index 6284539..a3f8104 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -140,6 +140,13 @@ static void ide_identify(IDEState *s) put_le16(p + 66, 120); put_le16(p + 67, 120); put_le16(p + 68, 120); + + if (s->ncq_queues) { + put_le16(p + 75, s->ncq_queues - 1); + /* NCQ supported */ + put_le16(p + 76, (1 << 8)); + } + put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */ put_le16(p + 81, 0x16); /* conforms to ata5 */ /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */ diff --git a/hw/ide/internal.h b/hw/ide/internal.h index 7e2ba1a..414adf5 100644 --- a/hw/ide/internal.h +++ b/hw/ide/internal.h @@ -453,6 +453,8 @@ struct IDEState { int smart_errors; uint8_t smart_selftest_count; uint8_t *smart_selftest_data; + /* AHCI */ + int ncq_queues; }; struct IDEDMAOps { -- 1.6.0.2