static void ldpaa_eth_rx(struct ldpaa_eth_priv *priv,
const struct dpaa_fd *fd)
{
u64 fd_addr;
uint16_t fd_offset;
uint32_t fd_length;
struct ldpaa_fas *fas;
uint32_t status, err;
u32 timeo = (CONFIG_SYS_HZ * 2) / 1000;
u32 time_start;
struct qbman_release_desc releasedesc;
struct qbman_swp *swp = dflt_dpio->sw_portal;
fd_addr = ldpaa_fd_get_addr(fd);
fd_offset = ldpaa_fd_get_offset(fd);
fd_length = ldpaa_fd_get_len(fd);
debug("Rx frame:data addr=0x%p size=0x%x\n", (u64 *)fd_addr, fd_length);
if (fd->simple.frc & LDPAA_FD_FRC_FASV) {
/* Read the frame annotation status word and check for errors */
fas = (struct ldpaa_fas *)
((uint8_t *)(fd_addr) +
dflt_dpni->buf_layout.private_data_size);
status = le32_to_cpu(fas->status);
if (status & LDPAA_ETH_RX_ERR_MASK) {
printf("Rx frame error(s): 0x%08x\n",
status & LDPAA_ETH_RX_ERR_MASK);
goto error;
} else if (status & LDPAA_ETH_RX_UNSUPP_MASK) {
printf("Unsupported feature in bitmask: 0x%08x\n",
status & LDPAA_ETH_RX_UNSUPP_MASK);
goto error;
}
}
debug("Rx frame: To Upper layer\n");
net_process_received_packet((uint8_t *)(fd_addr) + fd_offset,
fd_length);
error:
flush_dcache_range(fd_addr, fd_addr + LDPAA_ETH_RX_BUFFER_SIZE);
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, &fd_addr, 1);
} while (get_timer(time_start) < timeo && err == -EBUSY);
if (err == -EBUSY)
printf("Rx frame: QBMAN buffer release fails\n");
return;
}
/**
* dpaa2_io_service_release() - Release buffers to a buffer pool.
* @d: the given DPIO object.
* @bpid: the buffer pool id.
* @buffers: the buffers to be released.
* @num_buffers: the number of the buffers to be released.
*
* Return 0 for success, and negative error code for failure.
*/
int dpaa2_io_service_release(struct dpaa2_io *d,
u32 bpid,
const u64 *buffers,
unsigned int num_buffers)
{
struct qbman_release_desc rd;
d = service_select(d);
if (!d)
return -ENODEV;
qbman_release_desc_clear(&rd);
qbman_release_desc_set_bpid(&rd, bpid);
return qbman_swp_release(d->swp, &rd, buffers, num_buffers);
}
static int ldpaa_bp_add_7(uint16_t bpid)
{
uint64_t buf_array[7];
u8 *addr;
int i;
struct qbman_release_desc rd;
for (i = 0; i < 7; i++) {
addr = memalign(LDPAA_ETH_BUF_ALIGN, LDPAA_ETH_RX_BUFFER_SIZE);
if (!addr) {
printf("addr allocation failed\n");
goto err_alloc;
}
memset(addr, 0x00, LDPAA_ETH_RX_BUFFER_SIZE);
flush_dcache_range((u64)addr,
(u64)(addr + LDPAA_ETH_RX_BUFFER_SIZE));
buf_array[i] = (uint64_t)addr;
debug("Release: buffer addr =0x%p\n", addr);
}
release_bufs:
/* In case the portal is busy, retry until successful.
* This function is guaranteed to succeed in a reasonable amount
* of time.
*/
do {
mdelay(1);
qbman_release_desc_clear(&rd);
qbman_release_desc_set_bpid(&rd, bpid);
} while (qbman_swp_release(dflt_dpio->sw_portal, &rd, buf_array, i));
return i;
err_alloc:
if (i)
goto release_bufs;
return 0;
}
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;
}
