Guangguan Wang 793a7df630 net/smc: rdma write inline if qp has sufficient inline space ... Rdma write with inline flag when sending small packages, whose length is shorter than the qp's max_inline_data, can help reducing 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 0.5us-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 11.2 us 10.6 us (-0.6 us) 2B 11.2 us 10.7 us (-0.5 us) 4B 11.3 us 10.7 us (-0.6 us) 8B 11.2 us 10.6 us (-0.6 us) 16B 11.3 us 10.7 us (-0.6 us) 32B 11.3 us 10.6 us (-0.7 us) 64B 11.2 us 11.2 us (0 us) 128B 11.2 us 11.2 us (0 us) 256B 11.2 us 11.2 us (0 us) 512B 11.4 us 11.3 us (-0.1 us) 1KB 11.4 us 11.5 us (0.1 us) 2KB 11.5 us 11.5 us (0 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: rdma write inline if qp has sufficient inline space	2022-05-17 17:34:12 -07:00
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