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authorHannes Frederic Sowa <hannes@stressinduktion.org>2014-09-02 15:49:25 +0200
committerDavid S. Miller <davem@davemloft.net>2014-09-04 22:26:14 -0700
commit2f711939d2ea9dfaecebecd1324d2ec7a7a21f65 (patch)
treebd60e72acdcced3d345139cb31540b586eabd5a1 /include/net/ipv6.h
parentb89df95d52d5fd0de5a2ca3f8b49aaaee4675151 (diff)
downloadblackbird-op-linux-2f711939d2ea9dfaecebecd1324d2ec7a7a21f65.tar.gz
blackbird-op-linux-2f711939d2ea9dfaecebecd1324d2ec7a7a21f65.zip
ipv6: add sysctl_mld_qrv to configure query robustness variable
This patch adds a new sysctl_mld_qrv knob to configure the mldv1/v2 query robustness variable. It specifies how many retransmit of unsolicited mld retransmit should happen. Admins might want to tune this on lossy links. Also reset mld state on interface down/up, so we pick up new sysctl settings during interface up event. IPv6 certification requests this knob to be available. I didn't make this knob netns specific, as it is mostly a setting in a physical environment and should be per host. Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ipv6.h')
-rw-r--r--include/net/ipv6.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index a2db816e8461..7e247e9b8765 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -121,6 +121,7 @@ struct frag_hdr {
/* sysctls */
extern int sysctl_mld_max_msf;
+extern int sysctl_mld_qrv;
#define _DEVINC(net, statname, modifier, idev, field) \
({ \
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