Guangguan Wang b632eb0697 net/smc: send cdc msg inline if qp has sufficient inline space ... As cdc msg's length is 44B, cdc msgs can be sent inline in most rdma devices, which can help reducing sending latency. In my test environment, which are 2 VMs running on the same physical host and whose NICs(ConnectX-4Lx) are working on SR-IOV mode, qperf shows 0.4us-0.7us improvement in latency. Test command: server: smc_run taskset -c 1 qperf client: smc_run taskset -c 1 qperf <server ip> -oo \ msg_size:1:2K:*2 -t 30 -vu tcp_lat The results shown below: msgsize before after 1B 11.9 us 11.2 us (-0.7 us) 2B 11.7 us 11.2 us (-0.5 us) 4B 11.7 us 11.3 us (-0.4 us) 8B 11.6 us 11.2 us (-0.4 us) 16B 11.7 us 11.3 us (-0.4 us) 32B 11.7 us 11.3 us (-0.4 us) 64B 11.7 us 11.2 us (-0.5 us) 128B 11.6 us 11.2 us (-0.4 us) 256B 11.8 us 11.2 us (-0.6 us) 512B 11.8 us 11.4 us (-0.4 us) 1KB 11.9 us 11.4 us (-0.5 us) 2KB 12.1 us 11.5 us (-0.6 us) Signed-off-by: Guangguan Wang <guangguan.wang@linux.alibaba.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Tested-by: kernel test robot <lkp@intel.com> Acked-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2022-05-17 17:34:12 -07:00
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af_smc.c	net/smc: align the connect behaviour with TCP	2022-05-16 10:40:07 +01:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	net/smc: fix compile warning for smc_sysctl	2022-03-07 11:59:17 +00:00
smc_cdc.c	net/smc: don't send in the BH context if sock_owned_by_user	2022-03-01 14:25:12 +00:00
smc_cdc.h	net/smc: fix kernel panic caused by race of smc_sock	2021-12-28 12:42:45 +00:00
smc_clc.c	net/smc: use memcpy instead of snprintf to avoid out of bounds read	2022-04-11 18:28:02 -07:00
smc_clc.h	net/smc: add v2 format of CLC decline message	2021-10-16 14:58:13 +01:00
smc_close.c	net/smc: Fix slab-out-of-bounds issue in fallback	2022-04-25 11:03:48 -07:00
smc_close.h	net/smc: remove close abort worker	2019-10-22 11:23:44 -07:00
smc_core.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-03-03 11:55:12 -08:00
smc_core.h	net/smc: Resolve the race between SMC-R link access and clear	2022-01-13 13:14:53 +00:00
smc_diag.c	Partially revert "net/smc: Add netlink net namespace support"	2022-02-02 07:42:41 -08:00
smc_ib.c	net/smc: send cdc msg inline if qp has sufficient inline space	2022-05-17 17:34:12 -07:00
smc_ib.h	net/smc: Introduce net namespace support for linkgroup	2022-01-02 12:07:39 +00:00
smc_ism.c	net: Don't include filter.h from net/sock.h	2021-12-29 08:48:14 -08:00
smc_ism.h	net/smc: keep static copy of system EID	2021-09-14 12:49:10 +01:00
smc_llc.c	net/smc: Print net namespace in log	2022-01-02 12:07:39 +00:00
smc_llc.h	net/smc: extend LLC layer for SMC-Rv2	2021-10-16 14:58:13 +01:00
smc_netlink.c	net/smc: Add global configure for handshake limitation by netlink	2022-02-11 11:14:58 +00:00
smc_netlink.h	net/smc: add support for user defined EIDs	2021-09-14 12:49:10 +01:00
smc_netns.h	net/smc: introduce list of pnetids for Ethernet devices	2020-09-28 15:19:03 -07:00
smc_pnet.c	net/smc: Fix NULL pointer dereference in smc_pnet_find_ib()	2022-04-11 18:28:03 -07:00
smc_pnet.h	net/smc: Use a mutex for locking "struct smc_pnettable"	2022-02-24 09:09:33 -08:00
smc_rx.c	net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending	2022-05-12 10:01:36 -07:00
smc_rx.h	smc: add support for splice()	2018-05-04 11:45:06 -04:00
smc_stats.c	net/smc: Fix ENODATA tests in smc_nl_get_fback_stats()	2021-06-21 12:16:58 -07:00
smc_stats.h	net/smc: Make SMC statistics network namespace aware	2021-06-16 12:54:02 -07:00
smc_sysctl.c	net/smc: fix a memory leak in smc_sysctl_net_exit()	2022-03-26 14:17:01 -07:00
smc_sysctl.h	net/smc: fix -Wmissing-prototypes warning when CONFIG_SYSCTL not set	2022-03-09 20:02:35 -08:00
smc_tracepoint.c	net/smc: Introduce tracepoint for smcr link down	2021-11-01 13:39:14 +00:00
smc_tracepoint.h	net/smc: Add net namespace for tracepoints	2022-01-02 12:07:39 +00:00
smc_tx.c	net: smc: fix different types in min()	2022-03-01 16:43:27 -08:00
smc_tx.h	net/smc: Cork when sendpage with MSG_SENDPAGE_NOTLAST flag	2022-01-31 15:08:20 +00:00
smc_wr.c	net/smc: send cdc msg inline if qp has sufficient inline space	2022-05-17 17:34:12 -07:00
smc_wr.h	net/smc: Remove unused function declaration	2022-01-15 22:57:21 +00:00
smc.h	net/smc: Only save the original clcsock callback functions	2022-04-25 11:03:48 -07:00