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scsi: introduce scsi_req_get_buf

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... and remove some SCSIDevice variables or fields that now become unused.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Paolo Bonzini 2011-04-21 13:21:02 +02:00
parent ad3376cc55
commit 0c34459b6a
6 changed files with 11 additions and 9 deletions
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2
hw/esp.c
View File

@ -419,7 +419,7 @@ static void esp_command_complete(SCSIRequest *req, int reason, uint32_t arg)
} else {
DPRINTF("transfer %d/%d\n", s->dma_left, s->ti_size);
s->async_len = arg;
s->async_buf = s->current_dev->info->get_buf(req);
s->async_buf = scsi_req_get_buf(req);
if (s->dma_left) {
esp_do_dma(s);
} else if (s->dma_counter != 0 && s->ti_size <= 0) {

2
hw/lsi53c895a.c
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@ -569,7 +569,7 @@ static void lsi_do_dma(LSIState *s, int out)
s->dnad += count;
s->dbc -= count;
if (s->current->dma_buf == NULL) {
s->current->dma_buf = dev->info->get_buf(s->current->req);
s->current->dma_buf = scsi_req_get_buf(s->current->req);
}
/* ??? Set SFBR to first data byte. */
if (out) {

5
hw/scsi-bus.c
View File

@ -151,6 +151,11 @@ SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun)
return d->info->alloc_req(d, tag, lun);
}
uint8_t *scsi_req_get_buf(SCSIRequest *req)
{
return req->dev->info->get_buf(req);
}
int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf)
{
int32_t rc;

1
hw/scsi.h
View File

@ -154,6 +154,7 @@ void scsi_req_print(SCSIRequest *req);
void scsi_req_continue(SCSIRequest *req);
void scsi_req_data(SCSIRequest *req, int len);
void scsi_req_complete(SCSIRequest *req);
uint8_t *scsi_req_get_buf(SCSIRequest *req);
void scsi_req_abort(SCSIRequest *req, int status);
void scsi_req_cancel(SCSIRequest *req);
void scsi_device_purge_requests(SCSIDevice *sdev);

8
hw/spapr_vscsi.c
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@ -74,7 +74,6 @@ typedef struct vscsi_req {
union viosrp_iu iu;
/* SCSI request tracking */
SCSIDevice *sdev;
SCSIRequest *sreq;
uint32_t qtag; /* qemu tag != srp tag */
int lun;
@ -476,7 +475,6 @@ static void vscsi_command_complete(SCSIRequest *sreq, int reason, uint32_t arg)
{
VSCSIState *s = DO_UPCAST(VSCSIState, vdev.qdev, sreq->bus->qbus.parent);
vscsi_req *req = vscsi_find_req(s, sreq);
SCSIDevice *sdev;
uint8_t *buf;
int32_t res_in = 0, res_out = 0;
int len, rc = 0;
@ -487,7 +485,6 @@ static void vscsi_command_complete(SCSIRequest *sreq, int reason, uint32_t arg)
fprintf(stderr, "VSCSI: Can't find request for tag 0x%x\n", sreq->tag);
return;
}
sdev = req->sdev;
if (req->sensing) {
if (reason == SCSI_REASON_DONE) {
@ -495,7 +492,7 @@ static void vscsi_command_complete(SCSIRequest *sreq, int reason, uint32_t arg)
vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
vscsi_put_req(s, req);
} else {
uint8_t *buf = sdev->info->get_buf(sreq);
uint8_t *buf = scsi_req_get_buf(sreq);
len = MIN(arg, SCSI_SENSE_BUF_SIZE);
dprintf("VSCSI: Sense data, %d bytes:\n", len);
@ -539,7 +536,7 @@ static void vscsi_command_complete(SCSIRequest *sreq, int reason, uint32_t arg)
* to write for writes (ie, how much is to be DMA'd)
*/
if (arg) {
buf = sdev->info->get_buf(sreq);
buf = scsi_req_get_buf(sreq);
rc = vscsi_srp_transfer_data(s, req, req->writing, buf, arg);
}
if (rc < 0) {
@ -646,7 +643,6 @@ static int vscsi_queue_cmd(VSCSIState *s, vscsi_req *req)
} return 1;
}
req->sdev = sdev;
req->lun = lun;
req->sreq = scsi_req_new(sdev, req->qtag, lun);
n = scsi_req_enqueue(req->sreq, srp->cmd.cdb);

2
hw/usb-msd.c
View File

@ -247,7 +247,7 @@ static void usb_msd_command_complete(SCSIRequest *req, int reason, uint32_t arg)
}
assert((s->mode == USB_MSDM_DATAOUT) == (req->cmd.mode == SCSI_XFER_TO_DEV));
s->scsi_len = arg;
s->scsi_buf = s->scsi_dev->info->get_buf(req);
s->scsi_buf = scsi_req_get_buf(req);
if (p) {
usb_msd_copy_data(s);
if (s->usb_len == 0) {