segs = skb_shinfo(skb)->gso_segs;
mss = skb_shinfo(skb)->gso_size & NFDK_DESC_TX_MSS_MASK;
- /* Note: TSO of the packet with metadata prepended to skb is not
- * supported yet, in which case l3/l4_offset and lso_hdrlen need
- * be correctly handled here.
- * Concern:
- * The driver doesn't have md_bytes easily available at this point.
- * The PCI.IN PD ME won't have md_bytes bytes to add to lso_hdrlen,
- * so it needs the full length there. The app MEs might prefer
- * l3_offset and l4_offset relative to the start of packet data,
- * but could probably cope with it being relative to the CTM buf
- * data offset.
- */
txd.l3_offset = l3_offset;
txd.l4_offset = l4_offset;
txd.lso_meta_res = 0;
if (unlikely(md_dst->type != METADATA_HW_PORT_MUX))
return 0;
- /* Note: Unsupported case when TSO a skb with metedata prepended.
- * See the comments in `nfp_nfdk_tx_tso` for details.
- */
- if (unlikely(md_dst && skb_is_gso(skb)))
- return -EOPNOTSUPP;
-
if (unlikely(skb_cow_head(skb, sizeof(md_dst->u.port_info.port_id))))
return -ENOMEM;