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[Qemu-devel] [PATCH 05/12] ide: add ncq identify data for ahci sata driv
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 05/12] ide: add ncq identify data for ahci sata drives |
Date: |
Tue, 23 Nov 2010 15:34:42 +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 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
- [Qemu-devel] [PATCH 00/12] AHCI emulation support v4, Alexander Graf, 2010/11/23
- [Qemu-devel] [PATCH 05/12] ide: add ncq identify data for ahci sata drives,
Alexander Graf <=
- [Qemu-devel] [PATCH 06/12] pci: add storage class for sata, Alexander Graf, 2010/11/23
- [Qemu-devel] [PATCH 07/12] pci: add ich7 pci id, Alexander Graf, 2010/11/23
- [Qemu-devel] [PATCH 09/12] ahci: add -drive support, Alexander Graf, 2010/11/23
- [Qemu-devel] [PATCH 04/12] ide: add DMA hooks to bus ops, Alexander Graf, 2010/11/23
- [Qemu-devel] [PATCH 01/12] ide: split ide command interpretation off, Alexander Graf, 2010/11/23
- [Qemu-devel] [PATCH 10/12] config: Add header file for device config options, Alexander Graf, 2010/11/23