net/enetc: fix SMMU unhandled context fault

First configure ring with BDs properly then enable
the ring.

Fixes: 469c6111a799 ("net/enetc: enable Rx and Tx")
Cc: stable@dpdk.org
Signed-off-by: Gagandeep Singh <g.singh@nxp.com>

diff --git a/drivers/net/enetc/enetc_ethdev.c b/drivers/net/enetc/enetc_ethdev.c
index 7a9a97d..f1807b9 100644 (file)
--- a/drivers/net/enetc/enetc_ethdev.c
+++ b/drivers/net/enetc/enetc_ethdev.c
@@ -492,15 +492,15 @@ enetc_setup_rxbdr(struct enetc_hw *hw, struct enetc_bdr *rx_ring,
                       ENETC_RTBLENR_LEN(rx_ring->bd_count));
 
        rx_ring->mb_pool = mb_pool;
-       /* enable ring */
-       enetc_rxbdr_wr(hw, idx, ENETC_RBMR, ENETC_RBMR_EN);
-       enetc_rxbdr_wr(hw, idx, ENETC_RBPIR, 0);
        rx_ring->rcir = (void *)((size_t)hw->reg +
                        ENETC_BDR(RX, idx, ENETC_RBCIR));
        enetc_refill_rx_ring(rx_ring, (enetc_bd_unused(rx_ring)));
        buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rx_ring->mb_pool) -
                   RTE_PKTMBUF_HEADROOM);
        enetc_rxbdr_wr(hw, idx, ENETC_RBBSR, buf_size);
+       /* enable ring */
+       enetc_rxbdr_wr(hw, idx, ENETC_RBMR, ENETC_RBMR_EN);
+       enetc_rxbdr_wr(hw, idx, ENETC_RBPIR, 0);
 }
 
 static int