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Commit 94d3f634 authored Feb 21, 2020 by Sean Tranchetti

rmnet: Control DL csum offload with RXCSUM



Similar to the UL direction, allow the hardware checksum offload support
to be toggled off with the NETIF_F_RXCSUM flag though ethtool.

Change-Id: I38e43cf9c13363eee340793878be7639f18254e3
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>

parent 0daa9b15

core/rmnet_descriptor.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1036,7 +1036,9 @@ int rmnet_frag_process_next_hdr_packet(struct rmnet_frag_descriptor *frag_desc,
		rmnet_recycle_frag_descriptor(frag_desc, port);
		break;
		case RMNET_MAP_HEADER_TYPE_CSUM_OFFLOAD:
		if (rmnet_frag_get_csum_valid(frag_desc)) {
		if (unlikely(!(frag_desc->dev->features & NETIF_F_RXCSUM))) {
		priv->stats.csum_sw++;
		} else if (rmnet_frag_get_csum_valid(frag_desc)) {
		priv->stats.csum_ok++;
		frag_desc->csum_valid = true;
		} else {

core/rmnet_map_data.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1172,7 +1172,9 @@ int rmnet_map_process_next_hdr_packet(struct sk_buff *skb,
		consume_skb(skb);
		break;
		case RMNET_MAP_HEADER_TYPE_CSUM_OFFLOAD:
		if (rmnet_map_get_csum_valid(skb)) {
		if (unlikely(!(skb->dev->features & NETIF_F_RXCSUM))) {
		priv->stats.csum_sw++;
		} else if (rmnet_map_get_csum_valid(skb)) {
		priv->stats.csum_ok++;
		skb->ip_summed = CHECKSUM_UNNECESSARY;
		} else {