diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c index 2f5e0ad23ad7..31cefd6ef680 100644 --- a/drivers/net/ethernet/ti/cpsw_new.c +++ b/drivers/net/ethernet/ti/cpsw_new.c @@ -928,7 +928,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb, struct cpdma_chan *txch; int ret, q_idx; - if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) { + if (skb_put_padto(skb, READ_ONCE(priv->tx_packet_min))) { cpsw_err(priv, tx_err, "packet pad failed\n"); ndev->stats.tx_dropped++; return NET_XMIT_DROP; @@ -1108,7 +1108,7 @@ static int cpsw_ndo_xdp_xmit(struct net_device *ndev, int n, for (i = 0; i < n; i++) { xdpf = frames[i]; - if (xdpf->len < CPSW_MIN_PACKET_SIZE) { + if (xdpf->len < READ_ONCE(priv->tx_packet_min)) { xdp_return_frame_rx_napi(xdpf); drops++; continue; @@ -1402,6 +1402,7 @@ static int cpsw_create_ports(struct cpsw_common *cpsw) priv->dev = dev; priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG); priv->emac_port = i + 1; + priv->tx_packet_min = CPSW_MIN_PACKET_SIZE; if (is_valid_ether_addr(slave_data->mac_addr)) { ether_addr_copy(priv->mac_addr, slave_data->mac_addr); @@ -1699,6 +1700,7 @@ static int cpsw_dl_switch_mode_set(struct devlink *dl, u32 id, priv = netdev_priv(sl_ndev); slave->port_vlan = vlan; + WRITE_ONCE(priv->tx_packet_min, CPSW_MIN_PACKET_SIZE_VLAN); if (netif_running(sl_ndev)) cpsw_port_add_switch_def_ale_entries(priv, slave); @@ -1727,6 +1729,7 @@ static int cpsw_dl_switch_mode_set(struct devlink *dl, u32 id, priv = netdev_priv(slave->ndev); slave->port_vlan = slave->data->dual_emac_res_vlan; + WRITE_ONCE(priv->tx_packet_min, CPSW_MIN_PACKET_SIZE); cpsw_port_add_dual_emac_def_ale_entries(priv, slave); } diff --git a/drivers/net/ethernet/ti/cpsw_priv.h b/drivers/net/ethernet/ti/cpsw_priv.h index 7b7f3596b20d..a100c93edee8 100644 --- a/drivers/net/ethernet/ti/cpsw_priv.h +++ b/drivers/net/ethernet/ti/cpsw_priv.h @@ -89,7 +89,8 @@ do { \ #define CPSW_POLL_WEIGHT 64 #define CPSW_RX_VLAN_ENCAP_HDR_SIZE 4 -#define CPSW_MIN_PACKET_SIZE (VLAN_ETH_ZLEN) +#define CPSW_MIN_PACKET_SIZE_VLAN (VLAN_ETH_ZLEN) +#define CPSW_MIN_PACKET_SIZE (ETH_ZLEN) #define CPSW_MAX_PACKET_SIZE (VLAN_ETH_FRAME_LEN +\ ETH_FCS_LEN +\ CPSW_RX_VLAN_ENCAP_HDR_SIZE) @@ -380,6 +381,7 @@ struct cpsw_priv { u32 emac_port; struct cpsw_common *cpsw; int offload_fwd_mark; + u32 tx_packet_min; }; #define ndev_to_cpsw(ndev) (((struct cpsw_priv *)netdev_priv(ndev))->cpsw)