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Wen Gu 77eee32514 net/smc: Introduce a specific sysctl for TEST_LINK time 
SMC-R tests the viability of link by sending out TEST_LINK LLC
messages over RoCE fabric when connections on link have been
idle for a time longer than keepalive interval (testlink time).

But using tcp_keepalive_time as testlink time maybe not quite
suitable because it is default no less than two hours[1], which
is too long for single link to find peer dead. The active host
will still use peer-dead link (QP) sending messages, and can't
find out until get IB_WC_RETRY_EXC_ERR error CQEs, which takes
more time than TEST_LINK timeout (SMC_LLC_WAIT_TIME) normally.

So this patch introduces a independent sysctl for SMC-R to set
link keepalive time, in order to detect link down in time. The
default value is 30 seconds.

[1] https://www.rfc-editor.org/rfc/rfc1122#page-101

Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-22 12:58:21 +02:00
..
af_smc.c
net/smc: Remove redundant refcount increase
2022-09-01 10:04:45 +02:00
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: fixes for converting from "struct smc_cdc_tx_pend **" to "struct smc_wr_tx_pend_priv *"
2022-05-28 12:36:26 +01:00
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: Allow virtually contiguous sndbufs or RMBs for SMC-R
2022-07-18 11:19:17 +01:00
smc_clc.h
net/smc: Allow virtually contiguous sndbufs or RMBs for SMC-R
2022-07-18 11:19:17 +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
net/smc: Fix possible access to freed memory in link clear
2022-09-07 16:00:48 +01:00
smc_core.h
net/smc: Fix possible access to freed memory in link clear
2022-09-07 16:00:48 +01:00
smc_diag.c
net/smc: Enable module load on netlink usage
2022-07-27 13:24:42 +01:00
smc_ib.c
net/smc: Allow virtually contiguous sndbufs or RMBs for SMC-R
2022-07-18 11:19:17 +01:00
smc_ib.h
net/smc: optimize for smc_sndbuf_sync_sg_for_device and smc_rmb_sync_sg_for_cpu
2022-07-18 11:19:17 +01:00
smc_ism.c
net/smc: Pass on DMBE bit mask in IRQ handler
2022-07-27 13:24:42 +01:00
smc_ism.h
net/smc: Eliminate struct smc_ism_position
2022-07-27 13:24:42 +01:00
smc_llc.c
net/smc: Introduce a specific sysctl for TEST_LINK time
2022-09-22 12:58:21 +02:00
smc_llc.h
net/smc: Introduce a specific sysctl for TEST_LINK time
2022-09-22 12:58:21 +02:00
smc_netlink.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
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
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
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: Allow virtually contiguous sndbufs or RMBs for SMC-R
2022-07-18 11:19:17 +01:00
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: Introduce a specific sysctl for TEST_LINK time
2022-09-22 12:58:21 +02:00
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: Eliminate struct smc_ism_position
2022-07-27 13:24:42 +01:00
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: Fix possible access to freed memory in link clear
2022-09-07 16:00:48 +01:00
smc_wr.h
net/smc: Fix possible access to freed memory in link clear
2022-09-07 16:00:48 +01:00
smc.h
net/smc: Only save the original clcsock callback functions
2022-04-25 11:03:48 -07:00