From: Andy Gospodarek <gospo@xxxxxxxxxxxx>
Allow aggregation buffers to be in place in the receive path and
allow XDP programs to be attached when using a larger than 4k MTU.
v3: Add a check to sure XDP program supports multipage packets.
Signed-off-by: Andy Gospodarek <gospo@xxxxxxxxxxxx>
Signed-off-by: Michael Chan <mchan@xxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 +--
drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 5 +++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 25d74c9030fd..0489c1c2e7dd 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1939,8 +1939,7 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
xdp_active = true;
}
- /* skip running XDP prog if there are aggregation bufs */
- if (!agg_bufs && xdp_active) {
+ if (xdp_active) {
if (bnxt_rx_xdp(bp, rxr, cons, xdp, data, &len, event)) {
rc = 1;
goto next_rx;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index c2905f0a8c6c..f02fe906dedb 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -387,8 +387,9 @@ static int bnxt_xdp_set(struct bnxt *bp, struct bpf_prog *prog)
int tx_xdp = 0, rc, tc;
struct bpf_prog *old;
- if (prog && bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU) {
- netdev_warn(dev, "MTU %d larger than largest XDP supported MTU %d.\n",
+ if (prog && !prog->aux->xdp_has_frags &&
+ bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU) {
+ netdev_warn(dev, "MTU %d larger than %d without XDP frag support.\n",
bp->dev->mtu, BNXT_MAX_PAGE_MODE_MTU);
return -EOPNOTSUPP;
}
--
2.18.1
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