diff options
Diffstat (limited to 'net/smc/smc_llc.c')
| -rw-r--r-- | net/smc/smc_llc.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index 90f0b60b196a..018ce8133b02 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -52,14 +52,13 @@ struct smc_llc_msg_confirm_link { /* type 0x01 */ u8 link_num; u8 link_uid[SMC_LGR_ID_SIZE]; u8 max_links; - u8 reserved[9]; + u8 max_conns; + u8 reserved[8]; }; #define SMC_LLC_FLAG_ADD_LNK_REJ 0x40 #define SMC_LLC_REJ_RSN_NO_ALT_PATH 1 -#define SMC_LLC_ADD_LNK_MAX_LINKS 2 - struct smc_llc_msg_add_link { /* type 0x02 */ struct smc_llc_hdr hd; u8 sender_mac[ETH_ALEN]; @@ -471,7 +470,12 @@ int smc_llc_send_confirm_link(struct smc_link *link, hton24(confllc->sender_qp_num, link->roce_qp->qp_num); confllc->link_num = link->link_id; memcpy(confllc->link_uid, link->link_uid, SMC_LGR_ID_SIZE); - confllc->max_links = SMC_LLC_ADD_LNK_MAX_LINKS; + confllc->max_links = SMC_LINKS_ADD_LNK_MAX; + if (link->lgr->smc_version == SMC_V2 && + link->lgr->peer_smc_release >= SMC_RELEASE_1) { + confllc->max_conns = link->lgr->max_conns; + confllc->max_links = link->lgr->max_links; + } /* send llc message */ rc = smc_wr_tx_send(link, pend); put_out: @@ -1041,6 +1045,11 @@ int smc_llc_cli_add_link(struct smc_link *link, struct smc_llc_qentry *qentry) goto out_reject; } + if (lgr->type == SMC_LGR_SINGLE && lgr->max_links <= 1) { + rc = 0; + goto out_reject; + } + ini->vlan_id = lgr->vlan_id; if (lgr->smc_version == SMC_V2) { ini->check_smcrv2 = true; @@ -1165,6 +1174,9 @@ static void smc_llc_cli_add_link_invite(struct smc_link *link, lgr->type == SMC_LGR_ASYMMETRIC_PEER) goto out; + if (lgr->type == SMC_LGR_SINGLE && lgr->max_links <= 1) + goto out; + ini = kzalloc(sizeof(*ini), GFP_KERNEL); if (!ini) goto out; @@ -1410,6 +1422,11 @@ int smc_llc_srv_add_link(struct smc_link *link, goto out; } + if (lgr->type == SMC_LGR_SINGLE && lgr->max_links <= 1) { + rc = 0; + goto out; + } + /* ignore client add link recommendation, start new flow */ ini->vlan_id = lgr->vlan_id; if (lgr->smc_version == SMC_V2) { |