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Commit 93591aaa authored by Eugenia Emantayev's avatar Eugenia Emantayev Committed by David S. Miller
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net/mlx4_en: Pad ethernet packets smaller than 17 bytes 



Hardware can't accept packets smaller than 17 bytes. Therefore need to
pad with zeros.

Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarEugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b97b33a3

drivers/net/ethernet/mellanox/mlx4/en_tx.c

+7 −1
Original line number Diff line number Diff line
@@ -585,7 +585,13 @@ static void build_inline_wqe(struct mlx4_en_tx_desc *tx_desc, struct sk_buff *sk 
	int spc = MLX4_INLINE_ALIGN - CTRL_SIZE - sizeof *inl;



	if (skb->len <= spc) {

		if (likely(skb->len >= MIN_PKT_LEN)) {

			inl->byte_count = cpu_to_be32(1 << 31 | skb->len);

		} else {

			inl->byte_count = cpu_to_be32(1 << 31 | MIN_PKT_LEN);

			memset(((void *)(inl + 1)) + skb->len, 0,

			       MIN_PKT_LEN - skb->len);

		}

		skb_copy_from_linear_data(skb, inl + 1, skb_headlen(skb));

		if (skb_shinfo(skb)->nr_frags)

			memcpy(((void *)(inl + 1)) + skb_headlen(skb), fragptr,