diff options
| author | Sunil Goutham <sgoutham@cavium.com> | 2016-08-12 16:51:37 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-13 11:59:32 -0700 |
| commit | a8671acca87267ad8b583b6e5cf9f6bcb09ff77a (patch) | |
| tree | 842292a9a6d675fac39eb83b82779848d3df3294 | |
| parent | e412621394faacc24243abab84ce5b7a73407350 (diff) | |
net: thunderx: Use skb_add_rx_frag() for split buffer Rx pkts
Instead of a round about way of converting buffers to SKBs and
combining them into a frag list, use standard skb_add_rx_frag()
API to merge page fragments. This code is useful when incoming
packets are of size more than RCV_FRAG_LEN which is currently
set to 2048bytes.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/nicvf_queues.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c index ca223aa73825..ed2fe7276897 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c @@ -1184,8 +1184,8 @@ struct sk_buff *nicvf_get_rcv_skb(struct nicvf *nic, struct cqe_rx_t *cqe_rx) int frag; int payload_len = 0; struct sk_buff *skb = NULL; - struct sk_buff *skb_frag = NULL; - struct sk_buff *prev_frag = NULL; + struct page *page; + int offset; u16 *rb_lens = NULL; u64 *rb_ptrs = NULL; @@ -1218,22 +1218,10 @@ struct sk_buff *nicvf_get_rcv_skb(struct nicvf *nic, struct cqe_rx_t *cqe_rx) skb_put(skb, payload_len); } else { /* Add fragments */ - skb_frag = nicvf_rb_ptr_to_skb(nic, *rb_ptrs, - payload_len); - if (!skb_frag) { - dev_kfree_skb(skb); - return NULL; - } - - if (!skb_shinfo(skb)->frag_list) - skb_shinfo(skb)->frag_list = skb_frag; - else - prev_frag->next = skb_frag; - - prev_frag = skb_frag; - skb->len += payload_len; - skb->data_len += payload_len; - skb_frag->len = payload_len; + page = virt_to_page(phys_to_virt(*rb_ptrs)); + offset = phys_to_virt(*rb_ptrs) - page_address(page); + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, + offset, payload_len, RCV_FRAG_LEN); } /* Next buffer pointer */ rb_ptrs++; |