struct fw_xfer *
fwmem_read_block(
struct fw_device *fwdev,
caddr_t sc,
uint8_t spd,
uint16_t dst_hi,
uint32_t dst_lo,
int len,
void *data,
void (*hand)(struct fw_xfer *))
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fwmem_xfer_req(fwdev, sc, spd, 0, roundup2(len, 4), hand);
if (xfer == NULL)
return NULL;
fp = &xfer->send.hdr;
fp->mode.rreqb.tcode = FWTCODE_RREQB;
fp->mode.rreqb.dest_hi = dst_hi;
fp->mode.rreqb.dest_lo = dst_lo;
fp->mode.rreqb.len = len;
fp->mode.rreqb.extcode = 0;
xfer->send.payload = NULL;
xfer->recv.payload = data;
if (fwmem_debug)
printf("fwmem_read_block: %d %04x:%08x %d\n", fwdev->dst,
dst_hi, dst_lo, len);
if (fw_asyreq(xfer->fc, -1, xfer) == 0)
return xfer;
fw_xfer_free(xfer);
return NULL;
}
struct fw_xfer *
fwmem_read_quad(
struct fw_device *fwdev,
caddr_t sc,
uint8_t spd,
uint16_t dst_hi,
uint32_t dst_lo,
void *data,
void (*hand)(struct fw_xfer *))
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fwmem_xfer_req(fwdev, sc, spd, 0, 4, hand);
if (xfer == NULL) {
return NULL;
}
fp = &xfer->send.hdr;
fp->mode.rreqq.tcode = FWTCODE_RREQQ;
fp->mode.rreqq.dest_hi = dst_hi;
fp->mode.rreqq.dest_lo = dst_lo;
xfer->send.payload = NULL;
xfer->recv.payload = (uint32_t *)data;
if (fwmem_debug)
printf("fwmem_read_quad: %d %04x:%08x\n", fwdev->dst,
dst_hi, dst_lo);
if (fw_asyreq(xfer->fc, -1, xfer) == 0)
return xfer;
fw_xfer_free(xfer);
return NULL;
}
/* Async. stream output */
static void
fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp)
{
struct mbuf *m;
struct fw_xfer *xfer;
struct fw_xferq *xferq;
struct fw_pkt *fp;
int i = 0;
xfer = NULL;
xferq = fwe->fd.fc->atq;
while ((xferq->queued < xferq->maxq - 1) &&
(ifp->if_snd.ifq_head != NULL)) {
FWE_LOCK(fwe);
xfer = STAILQ_FIRST(&fwe->xferlist);
if (xfer == NULL) {
#if 0
printf("if_fwe: lack of xfer\n");
#endif
FWE_UNLOCK(fwe);
break;
}
STAILQ_REMOVE_HEAD(&fwe->xferlist, link);
FWE_UNLOCK(fwe);
IF_DEQUEUE(&ifp->if_snd, m);
if (m == NULL) {
FWE_LOCK(fwe);
STAILQ_INSERT_HEAD(&fwe->xferlist, xfer, link);
FWE_UNLOCK(fwe);
break;
}
#if defined(__DragonFly__) || __FreeBSD_version < 500000
if (ifp->if_bpf != NULL)
bpf_mtap(ifp, m);
#else
BPF_MTAP(ifp, m);
#endif
/* keep ip packet alignment for alpha */
M_PREPEND(m, ETHER_ALIGN, M_NOWAIT);
fp = &xfer->send.hdr;
*(uint32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr;
fp->mode.stream.len = m->m_pkthdr.len;
xfer->mbuf = m;
xfer->send.pay_len = m->m_pkthdr.len;
if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) {
/* error */
ifp->if_oerrors ++;
/* XXX set error code */
fwe_output_callback(xfer);
} else {
ifp->if_opackets ++;
i++;
}
}
#if 0
if (i > 1)
printf("%d queued\n", i);
#endif
if (i > 0)
xferq->start(fwe->fd.fc);
}
