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eth: fbnic: Prefetch packet headers on Rx

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Issue a prefetch for the start of the buffer on Rx to try to avoid cache
miss on packet headers.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com>
Link: https://patch.msgid.link/20250813221319.3367670-5-mohsin.bashr@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Mohsin Bashir 2025-08-13 15:13:14 -07:00 committed by Paolo Abeni
parent 61f9a066c3
commit 9064ab485f
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/meta/fbnic/fbnic_txrx.c
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@ -888,7 +888,7 @@ static void fbnic_pkt_prepare(struct fbnic_napi_vector *nv, u64 rcd,
/* Build frame around buffer */
hdr_start = page_address(page) + hdr_pg_start;
net_prefetch(pkt->buff.data);
xdp_prepare_buff(&pkt->buff, hdr_start, headroom,
len - FBNIC_RX_PAD, true);