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net: thunderx: Add XDP frame size

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To help reviewers these are the defines related to RCV_FRAG_LEN

 #define DMA_BUFFER_LEN	1536 /* In multiples of 128bytes */
 #define RCV_FRAG_LEN	(SKB_DATA_ALIGN(DMA_BUFFER_LEN + NET_SKB_PAD) + \
			 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Sunil Goutham <sgoutham@marvell.com>
Cc: Robert Richter <rrichter@marvell.com>
Link: https://lore.kernel.org/bpf/158945342402.97035.12649844447148990032.stgit@firesoul
This commit is contained in:
Jesper Dangaard Brouer 2020-05-14 12:50:24 +02:00 committed by Alexei Starovoitov
parent d201ea9ebc
commit c8145b263d
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/cavium/thunder/nicvf_main.c
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@ -552,6 +552,7 @@ static inline bool nicvf_xdp_rx(struct nicvf *nic, struct bpf_prog *prog,
xdp_set_data_meta_invalid(&xdp);
xdp.data_end = xdp.data + len;
xdp.rxq = &rq->xdp_rxq;
xdp.frame_sz = RCV_FRAG_LEN + XDP_PACKET_HEADROOM;
orig_data = xdp.data;
rcu_read_lock();