diff options
| author | Alexander Lobakin <[email protected]> | 2021-11-23 18:18:37 +0100 |
|---|---|---|
| committer | Tony Nguyen <[email protected]> | 2021-12-28 09:42:33 -0800 |
| commit | fa441f0fa8bc4d8231734aa8512d55dfb74fb598 (patch) | |
| tree | 57063a1439cad4720285443ee792f6e96c62c927 | |
| parent | 5ce666315848a4cb44485d8cd2c5887998da6606 (diff) | |
igb: switch to napi_build_skb()
napi_build_skb() reuses per-cpu NAPI skbuff_head cache in order
to save some cycles on freeing/allocating skbuff_heads on every
new Rx or completed Tx.
igb driver runs Tx completion polling cycle right before the Rx
one and uses napi_consume_skb() to feed the cache with skbuff_heads
of completed entries, so it's never empty and always warm at that
moment. Switch to the napi_build_skb() to relax mm pressure on
heavy Rx.
Signed-off-by: Alexander Lobakin <[email protected]>
Reviewed-by: Michal Swiatkowski <[email protected]>
Tested-by: Gurucharan G <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index ffe457e395a1..47ece02fce99 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -8367,7 +8367,7 @@ static struct sk_buff *igb_build_skb(struct igb_ring *rx_ring, net_prefetch(xdp->data_meta); /* build an skb around the page buffer */ - skb = build_skb(xdp->data_hard_start, truesize); + skb = napi_build_skb(xdp->data_hard_start, truesize); if (unlikely(!skb)) return NULL; |