linux-kernel - [PATCH RFC net-next 5/5] net: ethernet: ti: am65-cpsw: enable zero copy in XDP features

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Message-Id: <20250520-am65-cpsw-xdp-zc-v1-5-45558024f566@kernel.org>
Date: Tue, 20 May 2025 13:23:54 +0300
From: Roger Quadros <rogerq@...nel.org>
To: Siddharth Vadapalli <s-vadapalli@...com>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
 Jesper Dangaard Brouer <hawk@...nel.org>, 
 John Fastabend <john.fastabend@...il.com>, 
 Sumit Semwal <sumit.semwal@...aro.org>, 
 Christian König <christian.koenig@....com>
Cc: srk@...com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 bpf@...r.kernel.org, linux-media@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org, 
 Roger Quadros <rogerq@...nel.org>
Subject: [PATCH RFC net-next 5/5] net: ethernet: ti: am65-cpsw: enable zero
 copy in XDP features

Now that we have the plumbing in for XDP zero copy RX and TX, enable
the zero copy feature flag.

Signed-off-by: Roger Quadros <rogerq@...nel.org>
---
 drivers/net/ethernet/ti/am65-cpsw-nuss.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index e89b3cefcb05..894a0bd2a810 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -3173,7 +3173,8 @@ am65_cpsw_nuss_init_port_ndev(struct am65_cpsw_common *common, u32 port_idx)
 			       NETIF_F_HW_VLAN_CTAG_FILTER;
 	port->ndev->xdp_features = NETDEV_XDP_ACT_BASIC |
 				   NETDEV_XDP_ACT_REDIRECT |
-				   NETDEV_XDP_ACT_NDO_XMIT;
+				   NETDEV_XDP_ACT_NDO_XMIT |
+				   NETDEV_XDP_ACT_XSK_ZEROCOPY;
 	port->ndev->vlan_features |=  NETIF_F_SG;
 	port->ndev->netdev_ops = &am65_cpsw_nuss_netdev_ops;
 	port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave;

-- 
2.34.1