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-rw-r--r--include/uapi/linux/smc.h2
-rw-r--r--include/uapi/linux/smc_diag.h11
-rw-r--r--net/smc/smc_core.c31
-rw-r--r--net/smc/smc_core.h2
-rw-r--r--net/smc/smc_diag.c16
-rw-r--r--net/smc/smc_ib.h7
-rw-r--r--net/smc/smc_llc.c19
-rw-r--r--net/smc/smc_pnet.c21
-rw-r--r--net/smc/smc_tracepoint.h23
9 files changed, 92 insertions, 40 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 20d1417f0a68..4ecf1c702b57 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))
@@ -897,6 +900,7 @@ 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);
@@ -1548,9 +1552,9 @@ 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 */
@@ -1585,7 +1589,8 @@ 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 */
@@ -1743,8 +1748,10 @@ 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) ||
@@ -1752,12 +1759,17 @@ 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;
@@ -1773,6 +1785,7 @@ 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;
@@ -1799,7 +1812,7 @@ 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 d63b08274197..1e4e90faf657 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_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;
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h
index bfa1c6bf6313..5d8b49c57f50 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_llc.c b/net/smc/smc_llc.c
index 3e9fd8a3124c..c4d057b2941d 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 @@ finish:
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);
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 @@ out:
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,
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)
);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.