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tipc: re-configure queue limit for broadcast link

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The queue limit of the broadcast link is being calculated base on initial
MTU. However, when MTU value changed (e.g manual changing MTU on NIC
device, MTU negotiation etc.,) we do not re-calculate queue limit.
This gives throughput does not reflect with the change.

So fix it by calling the function to re-calculate queue limit of the
broadcast link.

Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Hoang Huu Le <hoang.h.le@dektech.com.au>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Hoang Huu Le 2020-10-16 09:31:18 +07:00 committed by Jakub Kicinski
parent 9ff9b0d392
commit 75cee397ae
1 changed files with 5 additions and 1 deletions
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6
net/tipc/bcast.c
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@ -108,6 +108,7 @@ static void tipc_bcbase_select_primary(struct net *net)
{
struct tipc_bc_base *bb = tipc_bc_base(net);
int all_dests = tipc_link_bc_peers(bb->link);
int max_win = tipc_link_max_win(bb->link);
int i, mtu, prim;
bb->primary_bearer = INVALID_BEARER_ID;
@ -121,8 +122,11 @@ static void tipc_bcbase_select_primary(struct net *net)
continue;
mtu = tipc_bearer_mtu(net, i);
if (mtu < tipc_link_mtu(bb->link))
if (mtu < tipc_link_mtu(bb->link)) {
tipc_link_set_mtu(bb->link, mtu);
tipc_link_set_queue_limits(bb->link, max_win,
max_win);
}
bb->bcast_support &= tipc_bearer_bcast_support(net, i);
if (bb->dests[i] < all_dests)
continue;