diff options
| 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_clc.c | |
| parent | a8d4879d5f1fac060719567d1a8e8f8e68a127fc (diff) | |
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_clc.c')
| -rw-r--r-- | net/smc/smc_clc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c index 8deb46c28f1d..1f87c8895a27 100644 --- a/net/smc/smc_clc.c +++ b/net/smc/smc_clc.c @@ -824,6 +824,7 @@ int smc_clc_send_proposal(struct smc_sock *smc, struct smc_init_info *ini) struct smc_clc_smcd_gid_chid *gidchids; struct smc_clc_msg_proposal_area *pclc; struct smc_clc_ipv6_prefix *ipv6_prfx; + struct net *net = sock_net(&smc->sk); struct smc_clc_v2_extension *v2_ext; struct smc_clc_msg_smcd *pclc_smcd; struct smc_clc_msg_trail *trl; @@ -944,7 +945,7 @@ int smc_clc_send_proposal(struct smc_sock *smc, struct smc_init_info *ini) if (smcr_indicated(ini->smc_type_v2)) { memcpy(v2_ext->roce, ini->smcrv2.ib_gid_v2, SMC_GID_SIZE); v2_ext->max_conns = SMC_CONN_PER_LGR_PREFER; - v2_ext->max_links = SMC_LINKS_PER_LGR_MAX_PREFER; + v2_ext->max_links = net->smc.sysctl_max_links_per_lgr; } pclc_base->hdr.length = htons(plen); @@ -1171,10 +1172,12 @@ int smc_clc_send_accept(struct smc_sock *new_smc, bool srv_first_contact, return len > 0 ? 0 : len; } -int smc_clc_srv_v2x_features_validate(struct smc_clc_msg_proposal *pclc, +int smc_clc_srv_v2x_features_validate(struct smc_sock *smc, + struct smc_clc_msg_proposal *pclc, struct smc_init_info *ini) { struct smc_clc_v2_extension *pclc_v2_ext; + struct net *net = sock_net(&smc->sk); ini->max_conns = SMC_CONN_PER_LGR_MAX; ini->max_links = SMC_LINKS_ADD_LNK_MAX; @@ -1192,7 +1195,8 @@ int smc_clc_srv_v2x_features_validate(struct smc_clc_msg_proposal *pclc, if (ini->max_conns < SMC_CONN_PER_LGR_MIN) return SMC_CLC_DECL_MAXCONNERR; - ini->max_links = min_t(u8, pclc_v2_ext->max_links, SMC_LINKS_PER_LGR_MAX_PREFER); + ini->max_links = min_t(u8, pclc_v2_ext->max_links, + net->smc.sysctl_max_links_per_lgr); if (ini->max_links < SMC_LINKS_ADD_LNK_MIN) return SMC_CLC_DECL_MAXLINKERR; } |