ethdev: add new offload flag to keep CRC

[dpdk.git] / drivers / net / e1000 / em_rxtx.c

diff --git a/drivers/net/e1000/em_rxtx.c b/drivers/net/e1000/em_rxtx.c
index a6b3e92..7d2ac4e 100644 (file)
--- a/drivers/net/e1000/em_rxtx.c
+++ b/drivers/net/e1000/em_rxtx.c
@@ -1364,6 +1364,7 @@ em_get_rx_port_offloads_capa(struct rte_eth_dev *dev)
                DEV_RX_OFFLOAD_UDP_CKSUM   |
                DEV_RX_OFFLOAD_TCP_CKSUM   |
                DEV_RX_OFFLOAD_CRC_STRIP   |
+               DEV_RX_OFFLOAD_KEEP_CRC    |
                DEV_RX_OFFLOAD_SCATTER;
        if (max_rx_pktlen > ETHER_MAX_LEN)
                rx_offload_capa |= DEV_RX_OFFLOAD_JUMBO_FRAME;
@@ -1458,8 +1459,10 @@ eth_em_rx_queue_setup(struct rte_eth_dev *dev,
        rxq->rx_free_thresh = rx_conf->rx_free_thresh;
        rxq->queue_id = queue_idx;
        rxq->port_id = dev->data->port_id;
-       rxq->crc_len = (uint8_t)((dev->data->dev_conf.rxmode.offloads &
-               DEV_RX_OFFLOAD_CRC_STRIP) ? 0 : ETHER_CRC_LEN);
+       if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads))
+               rxq->crc_len = ETHER_CRC_LEN;
+       else
+               rxq->crc_len = 0;
 
        rxq->rdt_reg_addr = E1000_PCI_REG_ADDR(hw, E1000_RDT(queue_idx));
        rxq->rdh_reg_addr = E1000_PCI_REG_ADDR(hw, E1000_RDH(queue_idx));
@@ -1792,9 +1795,10 @@ eth_em_rx_init(struct rte_eth_dev *dev)
                 * Reset crc_len in case it was changed after queue setup by a
                 *  call to configure
                 */
-               rxq->crc_len =
-                       (uint8_t)(dev->data->dev_conf.rxmode.offloads &
-                               DEV_RX_OFFLOAD_CRC_STRIP ? 0 : ETHER_CRC_LEN);
+               if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads))
+                       rxq->crc_len = ETHER_CRC_LEN;
+               else
+                       rxq->crc_len = 0;
 
                bus_addr = rxq->rx_ring_phys_addr;
                E1000_WRITE_REG(hw, E1000_RDLEN(i),
@@ -1873,10 +1877,10 @@ eth_em_rx_init(struct rte_eth_dev *dev)
        }
 
        /* Setup the Receive Control Register. */
-       if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_CRC_STRIP)
-               rctl |= E1000_RCTL_SECRC; /* Strip Ethernet CRC. */
-       else
+       if (rte_eth_dev_must_keep_crc(dev->data->dev_conf.rxmode.offloads))
                rctl &= ~E1000_RCTL_SECRC; /* Do not Strip Ethernet CRC. */
+       else
+               rctl |= E1000_RCTL_SECRC; /* Strip Ethernet CRC. */
 
        rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
        rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_LBM_NO |