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net: bgmac: Remove short packet padding for DSA 

DSA now correctly pads short packets within net/dsa/tag_brcm.c such that
this it is no longer necessary to do this within bgmac.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2018-01-03 22:13:02 -08:00 committed by David S. Miller
parent 398aff64d5
commit c979da77b3
1 changed files with 0 additions and 15 deletions
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15
drivers/net/ethernet/broadcom/bgmac.c
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@ -128,8 +128,6 @@ bgmac_dma_tx_add_buf(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
dma_desc->ctl1 = cpu_to_le32(ctl1);
}
#define ENET_BRCM_TAG_LEN 4
static netdev_tx_t bgmac_dma_tx_add(struct bgmac *bgmac,
struct bgmac_dma_ring *ring,
struct sk_buff *skb)
@ -142,18 +140,6 @@ static netdev_tx_t bgmac_dma_tx_add(struct bgmac *bgmac,
u32 flags;
int i;
/* The Ethernet switch we are interfaced with needs packets to be at
* least 64 bytes (including FCS) otherwise they will be discarded when
* they enter the switch port logic. When Broadcom tags are enabled, we
* need to make sure that packets are at least 68 bytes
* (including FCS and tag) because the length verification is done after
* the Broadcom tag is stripped off the ingress packet.
*/
if (netdev_uses_dsa(net_dev)) {
if (skb_put_padto(skb, ETH_ZLEN + ENET_BRCM_TAG_LEN))
goto err_stats;
}
if (skb->len > BGMAC_DESC_CTL1_LEN) {
netdev_err(bgmac->net_dev, "Too long skb (%d)\n", skb->len);
goto err_drop;
@ -240,7 +226,6 @@ err_dma_head:
err_drop:
dev_kfree_skb(skb);
err_stats:
net_dev->stats.tx_dropped++;
net_dev->stats.tx_errors++;
return NETDEV_TX_OK;