diff options
| author | Andy Gospodarek | 2022-04-08 03:59:00 -0400 |
|---|---|---|
| committer | David S. Miller | 2022-04-08 11:52:47 +0100 |
| commit | 4c6c123c9af9c94be4726134ca72ba5a0be0ebd0 (patch) | |
| tree | a0fdc5aa68b8671ba9de88d8a06b6994ba9cc049 /drivers | |
| parent | 23e4c0469ad03f695993cceccb50cbddf9ef8963 (diff) | |
bnxt: adding bnxt_rx_agg_pages_xdp for aggregated xdp
This patch adds a new function that will read pages from the
aggregation ring and create an xdp_buff with frags based on
the entries in the aggregation ring.
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 5487d8661f13..65992a33b973 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1131,6 +1131,27 @@ static struct sk_buff *bnxt_rx_agg_pages_skb(struct bnxt *bp, return skb; } +static u32 bnxt_rx_agg_pages_xdp(struct bnxt *bp, + struct bnxt_cp_ring_info *cpr, + struct xdp_buff *xdp, u16 idx, + u32 agg_bufs, bool tpa) +{ + struct skb_shared_info *shinfo = xdp_get_shared_info_from_buff(xdp); + u32 total_frag_len = 0; + + if (!xdp_buff_has_frags(xdp)) + shinfo->nr_frags = 0; + + total_frag_len = __bnxt_rx_agg_pages(bp, cpr, shinfo, idx, agg_bufs, tpa); + + if (total_frag_len) { + xdp_buff_set_frags_flag(xdp); + shinfo->nr_frags = agg_bufs; + shinfo->xdp_frags_size = total_frag_len; + } + return total_frag_len; +} + static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u8 agg_bufs, u32 *raw_cons) { @@ -1859,6 +1880,16 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, if (bnxt_xdp_attached(bp, rxr)) { bnxt_xdp_buff_init(bp, rxr, cons, &data_ptr, &len, &xdp); + if (agg_bufs) { + u32 frag_len = bnxt_rx_agg_pages_xdp(bp, cpr, &xdp, + cp_cons, agg_bufs, + false); + if (!frag_len) { + cpr->sw_stats.rx.rx_oom_discards += 1; + rc = -ENOMEM; + goto next_rx; + } + } xdp_active = true; } |