From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=51818 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PTeMj-0001Px-8p for qemu-devel@nongnu.org; Fri, 17 Dec 2010 12:46:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PTeLi-0002vd-Md for qemu-devel@nongnu.org; Fri, 17 Dec 2010 12:45:12 -0500 Received: from mx1.redhat.com ([209.132.183.28]:64815) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PTeLi-0002vS-Di for qemu-devel@nongnu.org; Fri, 17 Dec 2010 12:44:10 -0500 From: Kevin Wolf Date: Fri, 17 Dec 2010 18:44:25 +0100 Message-Id: <1292607893-13461-11-git-send-email-kwolf@redhat.com> In-Reply-To: <1292607893-13461-1-git-send-email-kwolf@redhat.com> References: <1292607893-13461-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PATCH 10/38] 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: anthony@codemonkey.ws Cc: kwolf@redhat.com, qemu-devel@nongnu.org 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 Signed-off-by: Kevin Wolf --- 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 228911d..9e1d4e6 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 aadb505..697c3b4 100644 --- a/hw/ide/internal.h +++ b/hw/ide/internal.h @@ -447,6 +447,8 @@ struct IDEState { int smart_errors; uint8_t smart_selftest_count; uint8_t *smart_selftest_data; + /* AHCI */ + int ncq_queues; }; struct IDEDMAOps { -- 1.7.2.3