[ofa-general] Re: [ewg] [PATCH] ofed_1_2/sdp - SDP can lose receive data

Ralph Campbell ralph.campbell at qlogic.com
Tue May 29 10:24:48 PDT 2007


It is from git://git.openfabrics.org/~vlad/ofed_1_2
commit 726c6827ac31c0b2f40acd804dc53362289bd21f

On Sun, 2007-05-27 at 12:07 +0300, Ami Perlmutter wrote:
> Ralph,
> this is how the code is now.
> Were are you getting this code from?
> 
> On Fri, 2007-05-25 at 17:33 -0700, Ralph Campbell wrote:
> > Can this fix be considered for OFED 1.2?
> > Thanks.
> > 
> > 
> > If a receive work completion is processed but there is no room
> > in a previously queued skb, the data is dropped.
> > This patch fixes the problem by queuing the skb.
> > 
> > Signed-off-by: Ralph Campbell <ralph.campbell at qlogic.com>
> > 
> > diff -r 074340d1892d drivers/infiniband/ulp/sdp/sdp_bcopy.c
> > --- a/drivers/infiniband/ulp/sdp/sdp_bcopy.c	Fri May 25 17:04:51 2007 -0700
> > +++ b/drivers/infiniband/ulp/sdp/sdp_bcopy.c	Fri May 25 17:07:02 2007 -0700
> > @@ -314,7 +314,8 @@ static inline struct sk_buff *sdp_sock_q
> >  			skb_copy_bits(skb, 0, skb_put(tail, skb_len), skb_len);
> >  			__kfree_skb(skb);
> >  			skb = tail;
> > -		}
> > +		} else
> > +			skb_queue_tail(&sk->sk_receive_queue, skb);
> >  	} else
> >  		skb_queue_tail(&sk->sk_receive_queue, skb);
> >  
> > 
> > 
> > _______________________________________________
> > ewg mailing list
> > ewg at lists.openfabrics.org
> > http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
> 
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