From 4dc0b367c3908472bf96e088d7eb4f4f8d092da7 Mon Sep 17 00:00:00 2001 From: Mark Zhang Date: Mon, 5 Jun 2023 13:33:23 +0300 Subject: RDMA/cma: Always set static rate to 0 for RoCE [ Upstream commit 58030c76cce473b6cfd630bbecb97215def0dff8 ] Set static rate to 0 as it should be discovered by path query and has no meaning for RoCE. This also avoid of using the rtnl lock and ethtool API, which is a bottleneck when try to setup many rdma-cm connections at the same time, especially with multiple processes. Fixes: 3c86aa70bf67 ("RDMA/cm: Add RDMA CM support for IBoE devices") Signed-off-by: Mark Zhang Link: https://lore.kernel.org/r/f72a4f8b667b803aee9fa794069f61afb5839ce4.1685960567.git.leon@kernel.org Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- include/rdma/ib_addr.h | 23 ----------------------- 1 file changed, 23 deletions(-) (limited to 'include') diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index d808dc3d239e..811a0f11d0db 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -194,29 +194,6 @@ static inline enum ib_mtu iboe_get_mtu(int mtu) return 0; } -static inline int iboe_get_rate(struct net_device *dev) -{ - struct ethtool_link_ksettings cmd; - int err; - - rtnl_lock(); - err = __ethtool_get_link_ksettings(dev, &cmd); - rtnl_unlock(); - if (err) - return IB_RATE_PORT_CURRENT; - - if (cmd.base.speed >= 40000) - return IB_RATE_40_GBPS; - else if (cmd.base.speed >= 30000) - return IB_RATE_30_GBPS; - else if (cmd.base.speed >= 20000) - return IB_RATE_20_GBPS; - else if (cmd.base.speed >= 10000) - return IB_RATE_10_GBPS; - else - return IB_RATE_PORT_CURRENT; -} - static inline int rdma_link_local_addr(struct in6_addr *addr) { if (addr->s6_addr32[0] == htonl(0xfe800000) && -- cgit v1.2.3