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scsi-block, scsi-generic: implement parse_cdb

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The callback lets the bus provide the direction and transfer count
for passthrough commands, enabling passthrough of vendor-specific
commands.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-07-16 12:22:26 +02:00
parent 592c3b289f
commit 3e7e180ab3
4 changed files with 23 additions and 2 deletions
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7
hw/scsi/scsi-generic.c
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@ -490,6 +490,12 @@ static Property scsi_generic_properties[] = {
DEFINE_PROP_END_OF_LIST(),
};
static int scsi_generic_parse_cdb(SCSIDevice *dev, SCSICommand *cmd,
uint8_t *buf, void *hba_private)
{
return scsi_bus_parse_cdb(dev, cmd, buf, hba_private);
}
static void scsi_generic_class_initfn(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@ -498,6 +504,7 @@ static void scsi_generic_class_initfn(ObjectClass *klass, void *data)
sc->init = scsi_generic_initfn;
sc->destroy = scsi_destroy;
sc->alloc_req = scsi_new_request;
sc->parse_cdb = scsi_generic_parse_cdb;
dc->fw_name = "disk";
dc->desc = "pass through generic scsi device (/dev/sg*)";
dc->reset = scsi_generic_reset;