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| author | John Snow <jsnow@redhat.com> | 2018-06-06 15:09:50 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2018-06-08 13:36:11 -0400 |
| commit | 956556e131e35f387ac482ad7b41151576fef057 (patch) | |
| tree | 1110f4cc06aafa1a726a7f15218d2937111ec805 /tests/libqos/ahci.h | |
| parent | 27e4648ce98f8172c2c2449896430e87652818d1 (diff) | |
| download | qemu-956556e131e35f387ac482ad7b41151576fef057.zip | |
ahci: move PIO Setup FIS before transfer, fix it for ATAPI commands
The PIO Setup FIS is written in the PIO:Entry state, which comes before
the ATA and ATAPI data transfer states. As a result, the PIO Setup FIS
interrupt is now raised before DMA ends for ATAPI commands, and tests have
to be adjusted.
This is also hinted by the description of the command header in the AHCI
specification, where the "A" bit is described as
When ‘1’, indicates that a PIO setup FIS shall be sent by the device
indicating a transfer for the ATAPI command.
and also by the description of the ACMD (ATAPI command region):
The ATAPI command must be either 12 or 16 bytes in length. The length
transmitted by the HBA is determined by the PIO setup FIS that is sent
by the device requesting the ATAPI command.
QEMU, which conflates the "generator" and the "receiver" of the FIS into
one device, always uses ATAPI_PACKET_SIZE, aka 12, for the length.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180606190955.20845-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
Diffstat (limited to 'tests/libqos/ahci.h')
| -rw-r--r-- | tests/libqos/ahci.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h index 715ca1e226..13f6d87b75 100644 --- a/tests/libqos/ahci.h +++ b/tests/libqos/ahci.h @@ -596,8 +596,7 @@ void ahci_port_check_interrupts(AHCIQState *ahci, uint8_t port, uint32_t intr_mask); void ahci_port_check_nonbusy(AHCIQState *ahci, uint8_t port, uint8_t slot); void ahci_port_check_d2h_sanity(AHCIQState *ahci, uint8_t port, uint8_t slot); -void ahci_port_check_pio_sanity(AHCIQState *ahci, uint8_t port, - uint8_t slot, size_t buffsize); +void ahci_port_check_pio_sanity(AHCIQState *ahci, AHCICommand *cmd); void ahci_port_check_cmd_sanity(AHCIQState *ahci, AHCICommand *cmd); /* Misc */ |