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Tue, 13 Oct 2020 06:18:23 +0000 From: Hoang Huu Le To: tipc-discussion@lists.sourceforge.net, jmaloy@redhat.com, maloy@donjonn.com, ying.xue@windriver.com, netdev@vger.kernel.org Subject: [net] tipc: re-configure queue limit for broadcast link Date: Tue, 13 Oct 2020 13:18:10 +0700 Message-Id: <20201013061810.77866-1-hoang.h.le@dektech.com.au> X-Mailer: git-send-email 2.25.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [14.161.14.188] X-ClientProxiedBy: SG2PR02CA0090.apcprd02.prod.outlook.com (2603:1096:4:90::30) To VI1PR05MB4605.eurprd05.prod.outlook.com (2603:10a6:802:61::21) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from dektech.com.au (14.161.14.188) by SG2PR02CA0090.apcprd02.prod.outlook.com (2603:1096:4:90::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3455.22 via Frontend Transport; Tue, 13 Oct 2020 06:18:21 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d2ae6dbd-e3b8-40e6-6adb-08d86f3fc9ba X-MS-TrafficTypeDiagnostic: VI1PR0502MB2942: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2449; 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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 Signed-off-by: Hoang Huu Le --- net/tipc/bcast.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 940d176e0e87..c77fd13e2777 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -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; -- 2.25.1