From patchwork Tue Dec 28 13:06:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lu X-Patchwork-Id: 12700340 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E163C433EF for ; Tue, 28 Dec 2021 13:07:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232027AbhL1NHH (ORCPT ); Tue, 28 Dec 2021 08:07:07 -0500 Received: from out30-44.freemail.mail.aliyun.com ([115.124.30.44]:39755 "EHLO out30-44.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231980AbhL1NHH (ORCPT ); Tue, 28 Dec 2021 08:07:07 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R131e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=tonylu@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0V06qTd1_1640696823; Received: from localhost(mailfrom:tonylu@linux.alibaba.com fp:SMTPD_---0V06qTd1_1640696823) by smtp.aliyun-inc.com(127.0.0.1); Tue, 28 Dec 2021 21:07:04 +0800 From: Tony Lu To: kgraul@linux.ibm.com Cc: kuba@kernel.org, davem@davemloft.net, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [PATCH 1/4] net/smc: Introduce net namespace support for linkgroup Date: Tue, 28 Dec 2021 21:06:09 +0800 Message-Id: <20211228130611.19124-2-tonylu@linux.alibaba.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211228130611.19124-1-tonylu@linux.alibaba.com> References: <20211228130611.19124-1-tonylu@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Currently, rdma device supports exclusive net namespace isolation, however linkgroup doesn't know and support ibdev net namespace. Applications in the containers don't want to share the nics if we enabled rdma exclusive mode. Every net namespaces should have their own linkgroups. This patch introduce a new field net for linkgroup, which is standing for the ibdev net namespace in the linkgroup. The net in linkgroup is initialized with the net namespace of link's ibdev. It compares the net of linkgroup and sock or ibdev before choose it, if no matched, create new one in current net namespace. If rdma net namespace exclusive mode is not enabled, it behaves as before. Signed-off-by: Tony Lu --- net/smc/smc_core.c | 24 +++++++++++++++++------- net/smc/smc_core.h | 2 ++ net/smc/smc_ib.h | 7 +++++++ net/smc/smc_pnet.c | 21 ++++++++++++++++----- 4 files changed, 42 insertions(+), 12 deletions(-) diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 85be94cabb01..05c11bbe4318 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -897,6 +897,7 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini) smc_wr_free_lgr_mem(lgr); goto free_wq; } + lgr->net = smc_ib_net(lnk->smcibdev); lgr_list = &smc_lgr_list.list; lgr_lock = &smc_lgr_list.lock; atomic_inc(&lgr_cnt); @@ -1570,7 +1571,8 @@ void smcr_port_add(struct smc_ib_device *smcibdev, u8 ibport) if (strncmp(smcibdev->pnetid[ibport - 1], lgr->pnet_id, SMC_MAX_PNETID_LEN) || lgr->type == SMC_LGR_SYMMETRIC || - lgr->type == SMC_LGR_ASYMMETRIC_PEER) + lgr->type == SMC_LGR_ASYMMETRIC_PEER || + !rdma_dev_access_netns(smcibdev->ibdev, lgr->net)) continue; /* trigger local add link processing */ @@ -1729,8 +1731,10 @@ static bool smcr_lgr_match(struct smc_link_group *lgr, u8 smcr_version, u8 peer_systemid[], u8 peer_gid[], u8 peer_mac_v1[], - enum smc_lgr_role role, u32 clcqpn) + enum smc_lgr_role role, u32 clcqpn, + struct net *net) { + struct smc_link *lnk; int i; if (memcmp(lgr->peer_systemid, peer_systemid, SMC_SYSTEMID_LEN) || @@ -1738,12 +1742,17 @@ static bool smcr_lgr_match(struct smc_link_group *lgr, u8 smcr_version, return false; for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) { - if (!smc_link_active(&lgr->lnk[i])) + lnk = &lgr->lnk[i]; + + if (!smc_link_active(lnk)) continue; - if ((lgr->role == SMC_SERV || lgr->lnk[i].peer_qpn == clcqpn) && - !memcmp(lgr->lnk[i].peer_gid, peer_gid, SMC_GID_SIZE) && + /* use verbs API to check netns, instead of lgr->net */ + if (!rdma_dev_access_netns(lnk->smcibdev->ibdev, net)) + return false; + if ((lgr->role == SMC_SERV || lnk->peer_qpn == clcqpn) && + !memcmp(lnk->peer_gid, peer_gid, SMC_GID_SIZE) && (smcr_version == SMC_V2 || - !memcmp(lgr->lnk[i].peer_mac, peer_mac_v1, ETH_ALEN))) + !memcmp(lnk->peer_mac, peer_mac_v1, ETH_ALEN))) return true; } return false; @@ -1759,6 +1768,7 @@ static bool smcd_lgr_match(struct smc_link_group *lgr, int smc_conn_create(struct smc_sock *smc, struct smc_init_info *ini) { struct smc_connection *conn = &smc->conn; + struct net *net = sock_net(&smc->sk); struct list_head *lgr_list; struct smc_link_group *lgr; enum smc_lgr_role role; @@ -1785,7 +1795,7 @@ int smc_conn_create(struct smc_sock *smc, struct smc_init_info *ini) smcr_lgr_match(lgr, ini->smcr_version, ini->peer_systemid, ini->peer_gid, ini->peer_mac, role, - ini->ib_clcqpn)) && + ini->ib_clcqpn, net)) && !lgr->sync_err && (ini->smcd_version == SMC_V2 || lgr->vlan_id == ini->vlan_id) && diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h index 59cef3b830d8..69e11ce22725 100644 --- a/net/smc/smc_core.h +++ b/net/smc/smc_core.h @@ -306,6 +306,8 @@ struct smc_link_group { u8 nexthop_mac[ETH_ALEN]; u8 uses_gateway; __be32 saddr; + /* net namespace */ + struct net *net; }; struct { /* SMC-D */ u64 peer_gid; diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h index 07585937370e..91a396120dee 100644 --- a/net/smc/smc_ib.h +++ b/net/smc/smc_ib.h @@ -69,6 +69,13 @@ static inline __be32 smc_ib_gid_to_ipv4(u8 gid[SMC_GID_SIZE]) return cpu_to_be32(INADDR_NONE); } +static inline struct net *smc_ib_net(struct smc_ib_device *smcibdev) +{ + if (smcibdev && smcibdev->ibdev) + return read_pnet(&smcibdev->ibdev->coredev.rdma_net); + return NULL; +} + struct smc_init_info_smcrv2; struct smc_buf_desc; struct smc_link; diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c index e171cc6483f8..db9825c01e0a 100644 --- a/net/smc/smc_pnet.c +++ b/net/smc/smc_pnet.c @@ -977,14 +977,16 @@ static int smc_pnet_determine_gid(struct smc_ib_device *ibdev, int i, /* find a roce device for the given pnetid */ static void _smc_pnet_find_roce_by_pnetid(u8 *pnet_id, struct smc_init_info *ini, - struct smc_ib_device *known_dev) + struct smc_ib_device *known_dev, + struct net *net) { struct smc_ib_device *ibdev; int i; mutex_lock(&smc_ib_devices.mutex); list_for_each_entry(ibdev, &smc_ib_devices.list, list) { - if (ibdev == known_dev) + if (ibdev == known_dev || + !rdma_dev_access_netns(ibdev->ibdev, net)) continue; for (i = 1; i <= SMC_MAX_PORTS; i++) { if (!rdma_is_port_valid(ibdev->ibdev, i)) @@ -1001,12 +1003,14 @@ static void _smc_pnet_find_roce_by_pnetid(u8 *pnet_id, mutex_unlock(&smc_ib_devices.mutex); } -/* find alternate roce device with same pnet_id and vlan_id */ +/* find alternate roce device with same pnet_id, vlan_id and net namespace */ void smc_pnet_find_alt_roce(struct smc_link_group *lgr, struct smc_init_info *ini, struct smc_ib_device *known_dev) { - _smc_pnet_find_roce_by_pnetid(lgr->pnet_id, ini, known_dev); + struct net *net = lgr->net; + + _smc_pnet_find_roce_by_pnetid(lgr->pnet_id, ini, known_dev, net); } /* if handshake network device belongs to a roce device, return its @@ -1015,6 +1019,7 @@ void smc_pnet_find_alt_roce(struct smc_link_group *lgr, static void smc_pnet_find_rdma_dev(struct net_device *netdev, struct smc_init_info *ini) { + struct net *net = dev_net(netdev); struct smc_ib_device *ibdev; mutex_lock(&smc_ib_devices.mutex); @@ -1022,6 +1027,10 @@ static void smc_pnet_find_rdma_dev(struct net_device *netdev, struct net_device *ndev; int i; + /* check rdma net namespace */ + if (!rdma_dev_access_netns(ibdev->ibdev, net)) + continue; + for (i = 1; i <= SMC_MAX_PORTS; i++) { if (!rdma_is_port_valid(ibdev->ibdev, i)) continue; @@ -1052,15 +1061,17 @@ static void smc_pnet_find_roce_by_pnetid(struct net_device *ndev, struct smc_init_info *ini) { u8 ndev_pnetid[SMC_MAX_PNETID_LEN]; + struct net *net; ndev = pnet_find_base_ndev(ndev); + net = dev_net(ndev); if (smc_pnetid_by_dev_port(ndev->dev.parent, ndev->dev_port, ndev_pnetid) && smc_pnet_find_ndev_pnetid_by_table(ndev, ndev_pnetid)) { smc_pnet_find_rdma_dev(ndev, ini); return; /* pnetid could not be determined */ } - _smc_pnet_find_roce_by_pnetid(ndev_pnetid, ini, NULL); + _smc_pnet_find_roce_by_pnetid(ndev_pnetid, ini, NULL, net); } static void smc_pnet_find_ism_by_pnetid(struct net_device *ndev, From patchwork Tue Dec 28 13:06:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lu X-Patchwork-Id: 12700341 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFEEDC433FE for ; Tue, 28 Dec 2021 13:07:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232079AbhL1NHJ (ORCPT ); Tue, 28 Dec 2021 08:07:09 -0500 Received: from out30-56.freemail.mail.aliyun.com ([115.124.30.56]:39831 "EHLO out30-56.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232019AbhL1NHI (ORCPT ); Tue, 28 Dec 2021 08:07:08 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R211e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01424;MF=tonylu@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0V07F2T5_1640696825; Received: from localhost(mailfrom:tonylu@linux.alibaba.com fp:SMTPD_---0V07F2T5_1640696825) by smtp.aliyun-inc.com(127.0.0.1); Tue, 28 Dec 2021 21:07:05 +0800 From: Tony Lu To: kgraul@linux.ibm.com Cc: kuba@kernel.org, davem@davemloft.net, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [PATCH 2/4] net/smc: Add netlink net namespace support Date: Tue, 28 Dec 2021 21:06:10 +0800 Message-Id: <20211228130611.19124-3-tonylu@linux.alibaba.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211228130611.19124-1-tonylu@linux.alibaba.com> References: <20211228130611.19124-1-tonylu@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This adds net namespace ID to diag of linkgroup, helps us to distinguish different namespaces, and net_cookie is unique in the whole system. Signed-off-by: Tony Lu --- include/uapi/linux/smc.h | 2 ++ include/uapi/linux/smc_diag.h | 11 ++++++----- net/smc/smc_core.c | 3 +++ net/smc/smc_diag.c | 16 +++++++++------- 4 files changed, 20 insertions(+), 12 deletions(-) diff --git a/include/uapi/linux/smc.h b/include/uapi/linux/smc.h index 20f33b27787f..6c2874fd2c00 100644 --- a/include/uapi/linux/smc.h +++ b/include/uapi/linux/smc.h @@ -119,6 +119,8 @@ enum { SMC_NLA_LGR_R_CONNS_NUM, /* u32 */ SMC_NLA_LGR_R_V2_COMMON, /* nest */ SMC_NLA_LGR_R_V2, /* nest */ + SMC_NLA_LGR_R_NET_COOKIE, /* u64 */ + SMC_NLA_LGR_R_PAD, /* flag */ __SMC_NLA_LGR_R_MAX, SMC_NLA_LGR_R_MAX = __SMC_NLA_LGR_R_MAX - 1 }; diff --git a/include/uapi/linux/smc_diag.h b/include/uapi/linux/smc_diag.h index 8cb3a6fef553..c7008d87f1a4 100644 --- a/include/uapi/linux/smc_diag.h +++ b/include/uapi/linux/smc_diag.h @@ -84,11 +84,12 @@ struct smc_diag_conninfo { /* SMC_DIAG_LINKINFO */ struct smc_diag_linkinfo { - __u8 link_id; /* link identifier */ - __u8 ibname[IB_DEVICE_NAME_MAX]; /* name of the RDMA device */ - __u8 ibport; /* RDMA device port number */ - __u8 gid[40]; /* local GID */ - __u8 peer_gid[40]; /* peer GID */ + __u8 link_id; /* link identifier */ + __u8 ibname[IB_DEVICE_NAME_MAX]; /* name of the RDMA device */ + __u8 ibport; /* RDMA device port number */ + __u8 gid[40]; /* local GID */ + __u8 peer_gid[40]; /* peer GID */ + __aligned_u64 net_cookie; /* RDMA device net namespace */ }; struct smc_diag_lgrinfo { diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 05c11bbe4318..b9d6148d1287 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -348,6 +348,9 @@ static int smc_nl_fill_lgr(struct smc_link_group *lgr, goto errattr; if (nla_put_u8(skb, SMC_NLA_LGR_R_VLAN_ID, lgr->vlan_id)) goto errattr; + if (nla_put_u64_64bit(skb, SMC_NLA_LGR_R_NET_COOKIE, + lgr->net->net_cookie, SMC_NLA_LGR_R_PAD)) + goto errattr; memcpy(smc_target, lgr->pnet_id, SMC_MAX_PNETID_LEN); smc_target[SMC_MAX_PNETID_LEN] = 0; if (nla_put_string(skb, SMC_NLA_LGR_R_PNETID, smc_target)) diff --git a/net/smc/smc_diag.c b/net/smc/smc_diag.c index c952986a6aca..7c8dad28c18d 100644 --- a/net/smc/smc_diag.c +++ b/net/smc/smc_diag.c @@ -145,19 +145,21 @@ static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb, if (smc->conn.lgr && !smc->conn.lgr->is_smcd && (req->diag_ext & (1 << (SMC_DIAG_LGRINFO - 1))) && !list_empty(&smc->conn.lgr->list)) { + struct smc_link *link = smc->conn.lnk; + struct net *net = read_pnet(&link->smcibdev->ibdev->coredev.rdma_net); + struct smc_diag_lgrinfo linfo = { .role = smc->conn.lgr->role, - .lnk[0].ibport = smc->conn.lnk->ibport, - .lnk[0].link_id = smc->conn.lnk->link_id, + .lnk[0].ibport = link->ibport, + .lnk[0].link_id = link->link_id, + .lnk[0].net_cookie = net->net_cookie, }; memcpy(linfo.lnk[0].ibname, smc->conn.lgr->lnk[0].smcibdev->ibdev->name, - sizeof(smc->conn.lnk->smcibdev->ibdev->name)); - smc_gid_be16_convert(linfo.lnk[0].gid, - smc->conn.lnk->gid); - smc_gid_be16_convert(linfo.lnk[0].peer_gid, - smc->conn.lnk->peer_gid); + sizeof(link->smcibdev->ibdev->name)); + smc_gid_be16_convert(linfo.lnk[0].gid, link->gid); + smc_gid_be16_convert(linfo.lnk[0].peer_gid, link->peer_gid); if (nla_put(skb, SMC_DIAG_LGRINFO, sizeof(linfo), &linfo) < 0) goto errout; From patchwork Tue Dec 28 13:06:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lu X-Patchwork-Id: 12700343 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C79E7C4167D for ; Tue, 28 Dec 2021 13:07:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232118AbhL1NHL (ORCPT ); Tue, 28 Dec 2021 08:07:11 -0500 Received: from out30-56.freemail.mail.aliyun.com ([115.124.30.56]:41222 "EHLO out30-56.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232035AbhL1NHJ (ORCPT ); Tue, 28 Dec 2021 08:07:09 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R931e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01424;MF=tonylu@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0V06pjRo_1640696826; Received: from localhost(mailfrom:tonylu@linux.alibaba.com fp:SMTPD_---0V06pjRo_1640696826) by smtp.aliyun-inc.com(127.0.0.1); Tue, 28 Dec 2021 21:07:07 +0800 From: Tony Lu To: kgraul@linux.ibm.com Cc: kuba@kernel.org, davem@davemloft.net, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [PATCH 3/4] net/smc: Print net namespace in log Date: Tue, 28 Dec 2021 21:06:11 +0800 Message-Id: <20211228130611.19124-4-tonylu@linux.alibaba.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211228130611.19124-1-tonylu@linux.alibaba.com> References: <20211228130611.19124-1-tonylu@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This adds net namespace ID to the kernel log, net_cookie is unique in the whole system. It is useful in container environment. Signed-off-by: Tony Lu --- net/smc/smc_core.c | 4 ++-- net/smc/smc_llc.c | 19 ++++++++++++------- 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index b9d6148d1287..42be10d9c780 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -1537,9 +1537,9 @@ void smcr_lgr_set_type(struct smc_link_group *lgr, enum smc_lgr_type new_type) lgr_type = "ASYMMETRIC_LOCAL"; break; } - pr_warn_ratelimited("smc: SMC-R lg %*phN state changed: " + pr_warn_ratelimited("smc: SMC-R lg %*phN net %llu state changed: " "%s, pnetid %.16s\n", SMC_LGR_ID_SIZE, &lgr->id, - lgr_type, lgr->pnet_id); + lgr->net->net_cookie, lgr_type, lgr->pnet_id); } /* set new lgr type and tag a link as asymmetric */ diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index b102680296b8..991ace8e316b 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -242,9 +242,10 @@ static void smc_llc_flow_parallel(struct smc_link_group *lgr, u8 flow_type, } /* drop parallel or already-in-progress llc requests */ if (flow_type != msg_type) - pr_warn_once("smc: SMC-R lg %*phN dropped parallel " + pr_warn_once("smc: SMC-R lg %*phN net %llu dropped parallel " "LLC msg: msg %d flow %d role %d\n", SMC_LGR_ID_SIZE, &lgr->id, + lgr->net->net_cookie, qentry->msg.raw.hdr.common.type, flow_type, lgr->role); kfree(qentry); @@ -359,9 +360,10 @@ struct smc_llc_qentry *smc_llc_wait(struct smc_link_group *lgr, smc_llc_flow_qentry_clr(flow)); return NULL; } - pr_warn_once("smc: SMC-R lg %*phN dropped unexpected LLC msg: " + pr_warn_once("smc: SMC-R lg %*phN net %llu dropped unexpected LLC msg: " "msg %d exp %d flow %d role %d flags %x\n", - SMC_LGR_ID_SIZE, &lgr->id, rcv_msg, exp_msg, + SMC_LGR_ID_SIZE, &lgr->id, lgr->net->net_cookie, + rcv_msg, exp_msg, flow->type, lgr->role, flow->qentry->msg.raw.hdr.flags); smc_llc_flow_qentry_del(flow); @@ -1816,8 +1818,9 @@ static void smc_llc_rmt_delete_rkey(struct smc_link_group *lgr) static void smc_llc_protocol_violation(struct smc_link_group *lgr, u8 type) { - pr_warn_ratelimited("smc: SMC-R lg %*phN LLC protocol violation: " - "llc_type %d\n", SMC_LGR_ID_SIZE, &lgr->id, type); + pr_warn_ratelimited("smc: SMC-R lg %*phN net %llu LLC protocol violation: " + "llc_type %d\n", SMC_LGR_ID_SIZE, &lgr->id, + lgr->net->net_cookie, type); smc_llc_set_termination_rsn(lgr, SMC_LLC_DEL_PROT_VIOL); smc_lgr_terminate_sched(lgr); } @@ -2146,9 +2149,10 @@ int smc_llc_link_init(struct smc_link *link) void smc_llc_link_active(struct smc_link *link) { - pr_warn_ratelimited("smc: SMC-R lg %*phN link added: id %*phN, " + pr_warn_ratelimited("smc: SMC-R lg %*phN net %llu link added: id %*phN, " "peerid %*phN, ibdev %s, ibport %d\n", SMC_LGR_ID_SIZE, &link->lgr->id, + link->lgr->net->net_cookie, SMC_LGR_ID_SIZE, &link->link_uid, SMC_LGR_ID_SIZE, &link->peer_link_uid, link->smcibdev->ibdev->name, link->ibport); @@ -2164,9 +2168,10 @@ void smc_llc_link_active(struct smc_link *link) void smc_llc_link_clear(struct smc_link *link, bool log) { if (log) - pr_warn_ratelimited("smc: SMC-R lg %*phN link removed: id %*phN" + pr_warn_ratelimited("smc: SMC-R lg %*phN net %llu link removed: id %*phN" ", peerid %*phN, ibdev %s, ibport %d\n", SMC_LGR_ID_SIZE, &link->lgr->id, + link->lgr->net->net_cookie, SMC_LGR_ID_SIZE, &link->link_uid, SMC_LGR_ID_SIZE, &link->peer_link_uid, link->smcibdev->ibdev->name, link->ibport); From patchwork Tue Dec 28 13:06:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lu X-Patchwork-Id: 12700342 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B36CC4332F for ; Tue, 28 Dec 2021 13:07:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232091AbhL1NHL (ORCPT ); Tue, 28 Dec 2021 08:07:11 -0500 Received: from out30-44.freemail.mail.aliyun.com ([115.124.30.44]:36963 "EHLO out30-44.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232060AbhL1NHK (ORCPT ); Tue, 28 Dec 2021 08:07:10 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R961e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04426;MF=tonylu@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0V06pjS-_1640696827; Received: from localhost(mailfrom:tonylu@linux.alibaba.com fp:SMTPD_---0V06pjS-_1640696827) by smtp.aliyun-inc.com(127.0.0.1); Tue, 28 Dec 2021 21:07:07 +0800 From: Tony Lu To: kgraul@linux.ibm.com Cc: kuba@kernel.org, davem@davemloft.net, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [PATCH 4/4] net/smc: Add net namespace for tracepoints Date: Tue, 28 Dec 2021 21:06:12 +0800 Message-Id: <20211228130611.19124-5-tonylu@linux.alibaba.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211228130611.19124-1-tonylu@linux.alibaba.com> References: <20211228130611.19124-1-tonylu@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This prints net namespace ID, helps us to distinguish different net namespaces when using tracepoints. Signed-off-by: Tony Lu --- net/smc/smc_tracepoint.h | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/net/smc/smc_tracepoint.h b/net/smc/smc_tracepoint.h index ec17f29646f5..9fc5e586d24a 100644 --- a/net/smc/smc_tracepoint.h +++ b/net/smc/smc_tracepoint.h @@ -22,6 +22,7 @@ TRACE_EVENT(smc_switch_to_fallback, TP_STRUCT__entry( __field(const void *, sk) __field(const void *, clcsk) + __field(u64, net_cookie) __field(int, fallback_rsn) ), @@ -31,11 +32,13 @@ TRACE_EVENT(smc_switch_to_fallback, __entry->sk = sk; __entry->clcsk = clcsk; + __entry->net_cookie = sock_net(sk)->net_cookie; __entry->fallback_rsn = fallback_rsn; ), - TP_printk("sk=%p clcsk=%p fallback_rsn=%d", - __entry->sk, __entry->clcsk, __entry->fallback_rsn) + TP_printk("sk=%p clcsk=%p net=%llu fallback_rsn=%d", + __entry->sk, __entry->clcsk, + __entry->net_cookie, __entry->fallback_rsn) ); DECLARE_EVENT_CLASS(smc_msg_event, @@ -46,19 +49,23 @@ DECLARE_EVENT_CLASS(smc_msg_event, TP_STRUCT__entry( __field(const void *, smc) + __field(u64, net_cookie) __field(size_t, len) __string(name, smc->conn.lnk->ibname) ), TP_fast_assign( + const struct sock *sk = &smc->sk; + __entry->smc = smc; + __entry->net_cookie = sock_net(sk)->net_cookie; __entry->len = len; __assign_str(name, smc->conn.lnk->ibname); ), - TP_printk("smc=%p len=%zu dev=%s", - __entry->smc, __entry->len, - __get_str(name)) + TP_printk("smc=%p net=%llu len=%zu dev=%s", + __entry->smc, __entry->net_cookie, + __entry->len, __get_str(name)) ); DEFINE_EVENT(smc_msg_event, smc_tx_sendmsg, @@ -84,6 +91,7 @@ TRACE_EVENT(smcr_link_down, TP_STRUCT__entry( __field(const void *, lnk) __field(const void *, lgr) + __field(u64, net_cookie) __field(int, state) __string(name, lnk->ibname) __field(void *, location) @@ -94,13 +102,14 @@ TRACE_EVENT(smcr_link_down, __entry->lnk = lnk; __entry->lgr = lgr; + __entry->net_cookie = lgr->net->net_cookie; __entry->state = lnk->state; __assign_str(name, lnk->ibname); __entry->location = location; ), - TP_printk("lnk=%p lgr=%p state=%d dev=%s location=%pS", - __entry->lnk, __entry->lgr, + TP_printk("lnk=%p lgr=%p net=%llu state=%d dev=%s location=%pS", + __entry->lnk, __entry->lgr, __entry->net_cookie, __entry->state, __get_str(name), __entry->location) );