From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=45074 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PJH9m-0004Px-2h for qemu-devel@nongnu.org; Thu, 18 Nov 2010 21:57:02 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PJH9k-0004ca-DS for qemu-devel@nongnu.org; Thu, 18 Nov 2010 21:56:57 -0500 Received: from cantor.suse.de ([195.135.220.2]:40731 helo=mx1.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PJH9k-0004c9-64 for qemu-devel@nongnu.org; Thu, 18 Nov 2010 21:56:56 -0500 From: Alexander Graf Date: Fri, 19 Nov 2010 03:56:47 +0100 Message-Id: <1290135413-21462-6-git-send-email-agraf@suse.de> In-Reply-To: <1290135413-21462-1-git-send-email-agraf@suse.de> References: <1290135413-21462-1-git-send-email-agraf@suse.de> Subject: [Qemu-devel] [PATCH 05/11] 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 , 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 04190d2..073c038 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -147,6 +147,13 @@ 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 4bee636..1261eea 100644 --- a/hw/ide/internal.h +++ b/hw/ide/internal.h @@ -451,6 +451,8 @@ struct IDEState { int smart_errors; uint8_t smart_selftest_count; uint8_t *smart_selftest_data; + /* AHCI */ + int ncq_queues; }; /* This struct represents a device that uses an IDE bus, but requires -- 1.6.0.2