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| author | Guangguan Wang <guangguan.wang@linux.alibaba.com> | 2023-11-22 21:52:57 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-11-24 12:13:14 +0000 |
| commit | f8e80fc4acebab0447567e77d6abc30fb44250cc (patch) | |
| tree | 49c332a3d7f99990d267060ad453609d7f5a8255 /net/smc/smc_sysctl.c | |
| parent | a8d4879d5f1fac060719567d1a8e8f8e68a127fc (diff) | |
| download | linux-stable-f8e80fc4acebab0447567e77d6abc30fb44250cc.tar.gz linux-stable-f8e80fc4acebab0447567e77d6abc30fb44250cc.tar.bz2 linux-stable-f8e80fc4acebab0447567e77d6abc30fb44250cc.zip | |
net/smc: add sysctl for max links per lgr for SMC-R v2.1
Add a new sysctl: net.smc.smcr_max_links_per_lgr, which is
used to control the preferred max links per lgr for SMC-R
v2.1. The default value of this sysctl is 2, and the acceptable
value ranges from 1 to 2.
Signed-off-by: Guangguan Wang <guangguan.wang@linux.alibaba.com>
Reviewed-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_sysctl.c')
| -rw-r--r-- | net/smc/smc_sysctl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/smc/smc_sysctl.c b/net/smc/smc_sysctl.c index 5cbc18c6e62b..3e9bb921e40a 100644 --- a/net/smc/smc_sysctl.c +++ b/net/smc/smc_sysctl.c @@ -25,6 +25,8 @@ static int max_sndbuf = INT_MAX / 2; static int max_rcvbuf = INT_MAX / 2; static const int net_smc_wmem_init = (64 * 1024); static const int net_smc_rmem_init = (64 * 1024); +static int links_per_lgr_min = SMC_LINKS_ADD_LNK_MIN; +static int links_per_lgr_max = SMC_LINKS_ADD_LNK_MAX; static struct ctl_table smc_table[] = { { @@ -68,6 +70,15 @@ static struct ctl_table smc_table[] = { .extra1 = &min_rcvbuf, .extra2 = &max_rcvbuf, }, + { + .procname = "smcr_max_links_per_lgr", + .data = &init_net.smc.sysctl_max_links_per_lgr, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &links_per_lgr_min, + .extra2 = &links_per_lgr_max, + }, { } }; @@ -97,6 +108,7 @@ int __net_init smc_sysctl_net_init(struct net *net) net->smc.sysctl_smcr_testlink_time = SMC_LLC_TESTLINK_DEFAULT_TIME; WRITE_ONCE(net->smc.sysctl_wmem, net_smc_wmem_init); WRITE_ONCE(net->smc.sysctl_rmem, net_smc_rmem_init); + net->smc.sysctl_max_links_per_lgr = SMC_LINKS_PER_LGR_MAX_PREFER; return 0; |