@@ -31,6 +31,8 @@ static void ldpaa_eth_rx(struct ldpaa_eth_priv *priv,
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;
@@ -65,10 +67,15 @@ 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 (err == -EBUSY);
+ } while (get_timer(time_start) < timeo && err == -EBUSY);
+
+ if (get_timer(time_start) >= timeo)
+ printf("Rx frame: QBMAN buffer release fails\n");
+
return;
}
@@ -195,11 +202,13 @@ static int ldpaa_eth_tx(struct eth_device *net_dev, void *buf, int len)
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 (err == -EBUSY);
+ } while (get_timer(time_start) < timeo && err == -EBUSY);
+ printf("TX data: QBMAN buffer release fails\n");
return err;
}
Change infinite loop mechanism to timer based polling. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> --- drivers/net/ldpaa_eth/ldpaa_eth.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)