/**
* dpaa2_io_service_enqueue_qd() - Enqueue a frame to a QD.
* @d: the given DPIO service.
* @qdid: the given queuing destination id.
* @prio: the given queuing priority.
* @qdbin: the given queuing destination bin.
* @fd: the frame descriptor which is enqueued.
*
* Return 0 for successful enqueue, or -EBUSY if the enqueue ring is not ready,
* or -ENODEV if there is no dpio service.
*/
int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d,
u32 qdid, u8 prio, u16 qdbin,
const struct dpaa2_fd *fd)
{
struct qbman_eq_desc ed;
d = service_select(d);
if (!d)
return -ENODEV;
qbman_eq_desc_clear(&ed);
qbman_eq_desc_set_no_orp(&ed, 0);
qbman_eq_desc_set_qd(&ed, qdid, qdbin, prio);
return qbman_swp_enqueue(d->swp, &ed, fd);
}
static int ldpaa_eth_tx(struct eth_device *net_dev, void *buf, int len)
{
struct ldpaa_eth_priv *priv = (struct ldpaa_eth_priv *)net_dev->priv;
struct dpaa_fd fd;
u64 buffer_start;
int data_offset, err;
u32 timeo = (CONFIG_SYS_HZ * 10) / 1000;
u32 time_start;
struct qbman_swp *swp = dflt_dpio->sw_portal;
struct qbman_eq_desc ed;
struct qbman_release_desc releasedesc;
/* Setup the FD fields */
memset(&fd, 0, sizeof(fd));
data_offset = priv->tx_data_offset;
do {
err = qbman_swp_acquire(dflt_dpio->sw_portal,
dflt_dpbp->dpbp_attr.bpid,
&buffer_start, 1);
} while (err == -EBUSY);
if (err < 0) {
printf("qbman_swp_acquire() failed\n");
return -ENOMEM;
}
debug("TX data: malloc buffer start=0x%p\n", (u64 *)buffer_start);
memcpy(((uint8_t *)(buffer_start) + data_offset), buf, len);
flush_dcache_range(buffer_start, buffer_start +
LDPAA_ETH_RX_BUFFER_SIZE);
ldpaa_fd_set_addr(&fd, (u64)buffer_start);
ldpaa_fd_set_offset(&fd, (uint16_t)(data_offset));
ldpaa_fd_set_bpid(&fd, dflt_dpbp->dpbp_attr.bpid);
ldpaa_fd_set_len(&fd, len);
fd.simple.ctrl = LDPAA_FD_CTRL_ASAL | LDPAA_FD_CTRL_PTA |
LDPAA_FD_CTRL_PTV1;
qbman_eq_desc_clear(&ed);
qbman_eq_desc_set_no_orp(&ed, 0);
qbman_eq_desc_set_qd(&ed, priv->tx_qdid, priv->tx_flow_id, 0);
time_start = get_timer(0);
while (get_timer(time_start) < timeo) {
err = qbman_swp_enqueue(swp, &ed,
(const struct qbman_fd *)(&fd));
if (err != -EBUSY)
break;
}
if (err < 0) {
printf("error enqueueing Tx frame\n");
goto error;
}
return err;
error:
qbman_release_desc_clear(&releasedesc);
qbman_release_desc_set_bpid(&releasedesc, dflt_dpbp->dpbp_attr.bpid);
time_start = get_timer(0);
do {
/* Release buffer into the QBMAN */
err = qbman_swp_release(swp, &releasedesc, &buffer_start, 1);
} while (get_timer(time_start) < timeo && err == -EBUSY);
if (err == -EBUSY)
printf("TX data: QBMAN buffer release fails\n");
return err;
}
