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From: dfilter@FreeBSD.ORG (dfilter service)
Subject: Re: kern/178955: commit references a PR
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The following reply was made to PR kern/178955; it has been noted by GNATS.

From: dfilter@FreeBSD.ORG (dfilter service)
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: kern/178955: commit references a PR
Date: Sat, 15 Jun 2013 03:55:11 +0000 (UTC)

 Author: bryanv
 Date: Sat Jun 15 03:55:04 2013
 New Revision: 251769
 URL: http://svnweb.freebsd.org/changeset/base/251769
 
 Log:
   Merge r250802 from bryanv/vtnetmq - Fix setting of the Rx filters
   
   QEMU 1.4 made the descriptor requirement stricter - the size of buffer
   descriptor must exactly match the number of MAC addresses provided.
   
   PR:		kern/178955
   MFC after:	5 days
 
 Modified:
   head/sys/dev/virtio/network/if_vtnet.c
 
 Modified: head/sys/dev/virtio/network/if_vtnet.c
 ==============================================================================
 --- head/sys/dev/virtio/network/if_vtnet.c	Sat Jun 15 01:35:52 2013	(r251768)
 +++ head/sys/dev/virtio/network/if_vtnet.c	Sat Jun 15 03:55:04 2013	(r251769)
 @@ -2470,9 +2470,9 @@ vtnet_rx_filter_mac(struct vtnet_softc *
  	sglist_init(&sg, 4, segs);
  	error |= sglist_append(&sg, &hdr, sizeof(struct virtio_net_ctrl_hdr));
  	error |= sglist_append(&sg, &filter->vmf_unicast,
 -	    sizeof(struct vtnet_mac_table));
 +	    sizeof(uint32_t) + filter->vmf_unicast.nentries * ETHER_ADDR_LEN);
  	error |= sglist_append(&sg, &filter->vmf_multicast,
 -	    sizeof(struct vtnet_mac_table));
 +	    sizeof(uint32_t) + filter->vmf_multicast.nentries * ETHER_ADDR_LEN);
  	error |= sglist_append(&sg, &ack, sizeof(uint8_t));
  	KASSERT(error == 0 && sg.sg_nseg == 4,
  	    ("error adding MAC filtering message to sglist"));
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