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Commit 65fd2c2a authored by Boris Pismenny's avatar Boris Pismenny Committed by Steffen Klassert
Browse files

xfrm: gso partial offload support 



This patch introduces support for gso partial ESP offload.

Signed-off-by: default avatarBoris Pismenny <borisp@mellanox.com>
Signed-off-by: default avatarRaed Salem <raeds@mellanox.com>
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
parent e6d14070

net/ipv4/esp4_offload.c

+7 −3
Original line number Diff line number Diff line
@@ -138,9 +138,11 @@ static struct sk_buff *esp4_gso_segment(struct sk_buff *skb, 


	skb->encap_hdr_csum = 1;



	if (!(features & NETIF_F_HW_ESP) || x->xso.dev != skb->dev)

	if ((!(skb->dev->gso_partial_features & NETIF_F_HW_ESP) &&

	     !(features & NETIF_F_HW_ESP)) || x->xso.dev != skb->dev)

		esp_features = features & ~(NETIF_F_SG | NETIF_F_CSUM_MASK);

	else if (!(features & NETIF_F_HW_ESP_TX_CSUM))

	else if (!(features & NETIF_F_HW_ESP_TX_CSUM) &&

		 !(skb->dev->gso_partial_features & NETIF_F_HW_ESP_TX_CSUM))

		esp_features = features & ~NETIF_F_CSUM_MASK;



	xo->flags |= XFRM_GSO_SEGMENT;
@@ -181,7 +183,9 @@ static int esp_xmit(struct xfrm_state *x, struct sk_buff *skb, netdev_features_ 
	if (!xo)

		return -EINVAL;



	if (!(features & NETIF_F_HW_ESP) || x->xso.dev != skb->dev) {

	if ((!(features & NETIF_F_HW_ESP) &&

	     !(skb->dev->gso_partial_features & NETIF_F_HW_ESP)) ||

	    x->xso.dev != skb->dev) {

		xo->flags |= CRYPTO_FALLBACK;

		hw_offload = false;

	}

net/xfrm/xfrm_device.c

+3 −0
Original line number Diff line number Diff line
@@ -78,6 +78,7 @@ struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t featur 
	}



	if (!skb->next) {

		esp_features |= skb->dev->gso_partial_features;

		x->outer_mode->xmit(x, skb);



		xo->flags |= XFRM_DEV_RESUME;
@@ -101,6 +102,8 @@ struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t featur 


	do {

		struct sk_buff *nskb = skb2->next;



		esp_features |= skb->dev->gso_partial_features;

		skb_mark_not_on_list(skb2);



		xo = xfrm_offload(skb2);