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virtio-scsi: add support for the any_layout feature

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Store the request and response headers by value, and let
virtio_scsi_parse_req check that there is only one of datain
and dataout.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-06-10 16:40:31 +02:00
parent a3de269ccc
commit 3eff1f46f0
3 changed files with 109 additions and 92 deletions
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4
include/hw/i386/pc.h
View file

@ -268,6 +268,10 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
#define PC_COMPAT_2_0 \
{\
.driver = "virtio-scsi-pci",\
.property = "any_layout",\
.value = "off",\
},{\
.driver = "apic",\
.property = "version",\
.value = stringify(0x11),\

4
include/hw/virtio/virtio-scsi.h
View file

@ -84,14 +84,13 @@
#define VIRTIO_SCSI_EVT_RESET_RESCAN 1
#define VIRTIO_SCSI_EVT_RESET_REMOVED 2
/* SCSI command request, followed by data-out */
/* SCSI command request, followed by CDB and data-out */
typedef struct {
uint8_t lun[8]; /* Logical Unit Number */
uint64_t tag; /* Command identifier */
uint8_t task_attr; /* Task attribute */
uint8_t prio;
uint8_t crn;
uint8_t cdb[];
} QEMU_PACKED VirtIOSCSICmdReq;
/* Response, followed by sense data and data-in */
@ -101,7 +100,6 @@ typedef struct {
uint16_t status_qualifier; /* Status qualifier */
uint8_t status; /* Command completion status */
uint8_t response; /* Response values */
uint8_t sense[];
} QEMU_PACKED VirtIOSCSICmdResp;
/* Task Management Request */