netdev - [PATCH v3 net-next 11/12] net: mvneta: enable jumbo frames for XDP

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Date:   Wed, 30 Sep 2020 17:42:02 +0200
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     netdev@...r.kernel.org
Cc:     bpf@...r.kernel.org, davem@...emloft.net, sameehj@...zon.com,
        kuba@...nel.org, john.fastabend@...il.com, daniel@...earbox.net,
        ast@...nel.org, shayagr@...zon.com, brouer@...hat.com,
        echaudro@...hat.com, lorenzo.bianconi@...hat.com,
        dsahern@...nel.org
Subject: [PATCH v3 net-next 11/12] net: mvneta: enable jumbo frames for XDP

Enable the capability to receive jumbo frames even if the interface is
running in XDP mode

Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 drivers/net/ethernet/marvell/mvneta.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index f709650974ea..e3352ed13ea8 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3743,11 +3743,6 @@ static int mvneta_change_mtu(struct net_device *dev, int mtu)
 		mtu = ALIGN(MVNETA_RX_PKT_SIZE(mtu), 8);
 	}
 
-	if (pp->xdp_prog && mtu > MVNETA_MAX_RX_BUF_SIZE) {
-		netdev_info(dev, "Illegal MTU value %d for XDP mode\n", mtu);
-		return -EINVAL;
-	}
-
 	dev->mtu = mtu;
 
 	if (!netif_running(dev)) {
@@ -4445,11 +4440,6 @@ static int mvneta_xdp_setup(struct net_device *dev, struct bpf_prog *prog,
 	struct mvneta_port *pp = netdev_priv(dev);
 	struct bpf_prog *old_prog;
 
-	if (prog && dev->mtu > MVNETA_MAX_RX_BUF_SIZE) {
-		NL_SET_ERR_MSG_MOD(extack, "Jumbo frames not supported on XDP");
-		return -EOPNOTSUPP;
-	}
-
 	if (pp->bm_priv) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Hardware Buffer Management not supported on XDP");
-- 
2.26.2