projects / ipfire-2.x.git / blame
| Commit | Line | Data |
|---|---|---|
| a7b0967d MT |
1 | From 540360773bad2b81f14c38ca92b62797fa32cbc6 Mon Sep 17 00:00:00 2001 |
| 2 | From: KY Srinivasan <kys@microsoft.com> | |
| 3 | Date: Wed, 30 Apr 2014 11:58:25 -0700 | |
| 4 | Subject: [PATCH 15/25] hyperv: Properly handle checksum offload | |
| 5 | ||
| 6 | Do checksum offload only if the client of the driver wants checksum to be | |
| 7 | offloaded. | |
| 8 | ||
| 9 | In V1 version of this patch, I addressed comments from | |
| 10 | Stephen Hemminger <stephen@networkplumber.org> and | |
| 11 | Eric Dumazet <eric.dumazet@gmail.com>. | |
| 12 | ||
| 13 | In this version of the patch I have addressed comments from | |
| 14 | David Miller. | |
| 15 | ||
| 16 | This patch fixes a bug that is exposed in gateway scenarios. | |
| 17 | ||
| 18 | Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> | |
| 19 | Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> | |
| 20 | Signed-off-by: David S. Miller <davem@davemloft.net> | |
| 21 | --- | |
| 22 | drivers/net/hyperv/netvsc_drv.c | 4 ++++ | |
| 23 | 1 file changed, 4 insertions(+) | |
| 24 | ||
| 25 | diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c | |
| 26 | index 0d898876689e..ce6d870dd7ae 100644 | |
| 27 | --- a/drivers/net/hyperv/netvsc_drv.c | |
| 28 | +++ b/drivers/net/hyperv/netvsc_drv.c | |
| 29 | @@ -383,6 +383,10 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) | |
| 30 | if (skb_is_gso(skb)) | |
| 31 | goto do_lso; | |
| 32 | ||
| 33 | + if ((skb->ip_summed == CHECKSUM_NONE) || | |
| 34 | + (skb->ip_summed == CHECKSUM_UNNECESSARY)) | |
| 35 | + goto do_send; | |
| 36 | + | |
| 37 | rndis_msg_size += NDIS_CSUM_PPI_SIZE; | |
| 38 | ppi = init_ppi_data(rndis_msg, NDIS_CSUM_PPI_SIZE, | |
| 39 | TCPIP_CHKSUM_PKTINFO); | |
| 40 | -- | |
| 41 | 2.4.3 | |
| 42 |