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authorYuval Mintz <Yuval.Mintz@qlogic.com>2015-06-25 15:19:29 +0300
committerDavid S. Miller <davem@davemloft.net>2015-06-25 16:30:38 +0300
commit592b9b8d687827086344705631494e5f232bee50 (patch)
tree7497a7f26f8cd0fcfdca219b1986d3d4fd1652a7 /drivers/net
parentefd38b8f52265a1b0ae08a8ee0048958c7fb820f (diff)
downloadlinux-592b9b8d687827086344705631494e5f232bee50.tar.xz
bnx2x: Fix linearization for encapsulated packets
Due to FW constraints, driver must make sure that transmitted SKBs will not be too fragmented, or in the case that they are - that each 'window' of fragments passed to the FW would contain at least an mss worth of data. For encapsultaed packets the calculation is wrong, since it ignores the inner headers in the calculation of the headers' length. This could lead to a FW assertion in case of a too-fragmented encapsulated packet. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index e2a65334708d..45e7c65f411f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3421,8 +3421,13 @@ static int bnx2x_pkt_req_lin(struct bnx2x *bp, struct sk_buff *skb,
u32 wnd_sum = 0;
/* Headers length */
- hlen = (int)(skb_transport_header(skb) - skb->data) +
- tcp_hdrlen(skb);
+ if (xmit_type & XMIT_GSO_ENC)
+ hlen = (int)(skb_inner_transport_header(skb) -
+ skb->data) +
+ inner_tcp_hdrlen(skb);
+ else
+ hlen = (int)(skb_transport_header(skb) -
+ skb->data) + tcp_hdrlen(skb);
/* Amount of data (w/o headers) on linear part of SKB*/
first_bd_sz = skb_headlen(skb) - hlen;