diff options
| author | Roland Elek <elek.roland@gmail.com> | 2010-12-14 01:34:37 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-12-17 16:11:02 +0100 |
| commit | ccf0fd8b056dec1fa610842dc3eb2f560ca65753 (patch) | |
| tree | adebcdb25d1339a9bd23914da77d355927011bf9 | |
| parent | 2ff61ff1955cb5268a2604aba8f6aa0c4c658505 (diff) | |
ide: add ncq identify data for ahci sata drives
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 <elek.roland@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| -rw-r--r-- | hw/ide/core.c | 7 | ||||
| -rw-r--r-- | 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 228911dc8..9e1d4e671 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 aadb505a1..697c3b4dc 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 { |