This is a preliminary patch to add hw csum hint support to mvneta xdp
implementation
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
drivers/net/ethernet/marvell/mvneta.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 7d5cd9bc6c99..4a7c153a2666 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1805,18 +1805,14 @@ static void mvneta_rx_error(struct mvneta_port *pp,
}
/* Handle RX checksum offload based on the descriptor's status */
-static void mvneta_rx_csum(struct mvneta_port *pp, u32 status,
- struct sk_buff *skb)
+static int mvneta_rx_csum(struct mvneta_port *pp, u32 status)
{
if ((pp->dev->features & NETIF_F_RXCSUM) &&
(status & MVNETA_RXD_L3_IP4) &&
- (status & MVNETA_RXD_L4_CSUM_OK)) {
- skb->csum = 0;
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- return;
- }
+ (status & MVNETA_RXD_L4_CSUM_OK))
+ return CHECKSUM_UNNECESSARY;
- skb->ip_summed = CHECKSUM_NONE;
+ return CHECKSUM_NONE;
}
/* Return tx queue pointer (find last set bit) according to <cause> returned
@@ -2335,7 +2331,7 @@ mvneta_swbm_build_skb(struct mvneta_port *pp, struct mvneta_rx_queue *rxq,
skb_reserve(skb, xdp->data - xdp->data_hard_start);
skb_put(skb, xdp->data_end - xdp->data);
- mvneta_rx_csum(pp, desc_status, skb);
+ skb->ip_summed = mvneta_rx_csum(pp, desc_status);
for (i = 0; i < num_frags; i++) {
skb_frag_t *frag = &sinfo->frags[i];
@@ -2532,7 +2528,7 @@ static int mvneta_rx_hwbm(struct napi_struct *napi,
rx_bytes);
skb->protocol = eth_type_trans(skb, dev);
- mvneta_rx_csum(pp, rx_status, skb);
+ skb->ip_summed = mvneta_rx_csum(pp, rx_status);
napi_gro_receive(napi, skb);
rcvd_pkts++;
@@ -2581,8 +2577,7 @@ static int mvneta_rx_hwbm(struct napi_struct *napi,
skb_put(skb, rx_bytes);
skb->protocol = eth_type_trans(skb, dev);
-
- mvneta_rx_csum(pp, rx_status, skb);
+ skb->ip_summed = mvneta_rx_csum(pp, rx_status);
napi_gro_receive(napi, skb);
}
--
2.31.1
