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[Qemu-devel] [PATCH 05/10] ide: add ncq identify data for ahci sata driv
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 05/10] ide: add ncq identify data for ahci sata drives |
Date: |
Wed, 1 Dec 2010 20:17:07 +0100 |
From: Roland Elek <address@hidden>
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 <address@hidden>
---
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 1680a38..cac209e 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 1b5e738..85cb938 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -452,6 +452,8 @@ 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
- [Qemu-devel] [PATCH 00/10] AHCI emulation support v7, Alexander Graf, 2010/12/01
- [Qemu-devel] [PATCH 05/10] ide: add ncq identify data for ahci sata drives,
Alexander Graf <=
- [Qemu-devel] [PATCH 04/10] ide: add DMA hooks to bus ops, Alexander Graf, 2010/12/01
- [Qemu-devel] [PATCH 10/10] config: add ahci for pci capable machines, Alexander Graf, 2010/12/01
- [Qemu-devel] [PATCH 07/10] pci: add ich7 pci id, Alexander Graf, 2010/12/01
- [Qemu-devel] [PATCH 01/10] ide: split ide command interpretation off, Alexander Graf, 2010/12/01
- [Qemu-devel] [PATCH 09/10] ide: move pata specific parts to pata.c, Alexander Graf, 2010/12/01