From: Zhu Yanjun <yanjun.zhu@intel.com>
To: zyjzyj2000@gmail.com, jgg@ziepe.ca, leon@kernel.org,
linux-rdma@vger.kernel.org, parav@nvidia.com, lehrer@gmail.com,
rpearsonhpe@gmail.com
Cc: Zhu Yanjun <yanjun.zhu@linux.dev>,
Rain River <rain.1986.08.12@gmail.com>
Subject: [PATCH v6 6/8] RDMA/rxe: add the support of net namespace
Date: Fri, 23 Jun 2023 17:57:47 +0800 [thread overview]
Message-ID: <20230623095749.485873-7-yanjun.zhu@intel.com> (raw)
In-Reply-To: <20230623095749.485873-1-yanjun.zhu@intel.com>
From: Zhu Yanjun <yanjun.zhu@linux.dev>
Originally init_net is used to indicate the current net namespace.
Currently more net namespaces are supported.
Tested-by: Rain River <rain.1986.08.12@gmail.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
---
drivers/infiniband/sw/rxe/rxe.c | 2 +-
drivers/infiniband/sw/rxe/rxe_net.c | 33 +++++++++++++++++------------
drivers/infiniband/sw/rxe/rxe_net.h | 2 +-
3 files changed, 22 insertions(+), 15 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe.c b/drivers/infiniband/sw/rxe/rxe.c
index c9b3125b26d0..ef632be05e38 100644
--- a/drivers/infiniband/sw/rxe/rxe.c
+++ b/drivers/infiniband/sw/rxe/rxe.c
@@ -198,7 +198,7 @@ static int rxe_newlink(const char *ibdev_name, struct net_device *ndev)
goto err;
}
- err = rxe_net_init();
+ err = rxe_net_init(ndev);
if (err)
return err;
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c
index 85ca842f3bad..607382a41e82 100644
--- a/drivers/infiniband/sw/rxe/rxe_net.c
+++ b/drivers/infiniband/sw/rxe/rxe_net.c
@@ -32,7 +32,7 @@ static struct dst_entry *rxe_find_route4(struct rxe_qp *qp,
memcpy(&fl.daddr, daddr, sizeof(*daddr));
fl.flowi4_proto = IPPROTO_UDP;
- rt = ip_route_output_key(&init_net, &fl);
+ rt = ip_route_output_key(dev_net(ndev), &fl);
if (IS_ERR(rt)) {
rxe_dbg_qp(qp, "no route to %pI4\n", &daddr->s_addr);
return NULL;
@@ -56,7 +56,8 @@ static struct dst_entry *rxe_find_route6(struct rxe_qp *qp,
struct sock *sk;
rcu_read_lock();
- sk = udp6_lib_lookup(&init_net, NULL, 0, &in6addr_any, htons(ROCE_V2_UDP_DPORT), 0);
+ sk = udp6_lib_lookup(dev_net(ndev), NULL, 0, &in6addr_any,
+ htons(ROCE_V2_UDP_DPORT), 0);
rcu_read_unlock();
if (!sk) {
rxe_dbg_qp(qp, "file: %s +%d, error\n", __FILE__, __LINE__);
@@ -553,9 +554,13 @@ int rxe_net_add(const char *ibdev_name, struct net_device *ndev)
void rxe_net_del(struct ib_device *dev)
{
struct sock *sk;
+ struct rxe_dev *rxe;
+
+ rxe = container_of(dev, struct rxe_dev, ib_dev);
rcu_read_lock();
- sk = udp4_lib_lookup(&init_net, 0, 0, htonl(INADDR_ANY), htons(ROCE_V2_UDP_DPORT), 0);
+ sk = udp4_lib_lookup(dev_net(rxe->ndev), 0, 0, htonl(INADDR_ANY),
+ htons(ROCE_V2_UDP_DPORT), 0);
rcu_read_unlock();
if (!sk)
return;
@@ -568,7 +573,8 @@ void rxe_net_del(struct ib_device *dev)
rxe_release_udp_tunnel(sk->sk_socket);
rcu_read_lock();
- sk = udp6_lib_lookup(&init_net, NULL, 0, &in6addr_any, htons(ROCE_V2_UDP_DPORT), 0);
+ sk = udp6_lib_lookup(dev_net(rxe->ndev), NULL, 0, &in6addr_any,
+ htons(ROCE_V2_UDP_DPORT), 0);
rcu_read_unlock();
if (!sk)
return;
@@ -640,6 +646,7 @@ static int rxe_notify(struct notifier_block *not_blk,
switch (event) {
case NETDEV_UNREGISTER:
ib_unregister_device_queued(&rxe->ib_dev);
+ rxe_net_del(&rxe->ib_dev);
break;
case NETDEV_UP:
rxe_port_up(rxe);
@@ -673,19 +680,19 @@ static struct notifier_block rxe_net_notifier = {
.notifier_call = rxe_notify,
};
-static int rxe_net_ipv4_init(void)
+static int rxe_net_ipv4_init(struct net_device *ndev)
{
struct sock *sk;
struct socket *sock;
rcu_read_lock();
- sk = udp4_lib_lookup(&init_net, 0, 0, htonl(INADDR_ANY),
+ sk = udp4_lib_lookup(dev_net(ndev), 0, 0, htonl(INADDR_ANY),
htons(ROCE_V2_UDP_DPORT), 0);
rcu_read_unlock();
if (sk)
return 0;
- sock = rxe_setup_udp_tunnel(&init_net, htons(ROCE_V2_UDP_DPORT), false);
+ sock = rxe_setup_udp_tunnel(dev_net(ndev), htons(ROCE_V2_UDP_DPORT), false);
if (IS_ERR(sock)) {
pr_err("Failed to create IPv4 UDP tunnel\n");
return -1;
@@ -694,20 +701,20 @@ static int rxe_net_ipv4_init(void)
return 0;
}
-static int rxe_net_ipv6_init(void)
+static int rxe_net_ipv6_init(struct net_device *ndev)
{
#if IS_ENABLED(CONFIG_IPV6)
struct sock *sk;
struct socket *sock;
rcu_read_lock();
- sk = udp6_lib_lookup(&init_net, NULL, 0, &in6addr_any,
+ sk = udp6_lib_lookup(dev_net(ndev), NULL, 0, &in6addr_any,
htons(ROCE_V2_UDP_DPORT), 0);
rcu_read_unlock();
if (sk)
return 0;
- sock = rxe_setup_udp_tunnel(&init_net, htons(ROCE_V2_UDP_DPORT), true);
+ sock = rxe_setup_udp_tunnel(dev_net(ndev), htons(ROCE_V2_UDP_DPORT), true);
if (PTR_ERR(sock) == -EAFNOSUPPORT) {
pr_warn("IPv6 is not supported, can not create a UDPv6 socket\n");
return 0;
@@ -739,14 +746,14 @@ void rxe_net_exit(void)
unregister_netdevice_notifier(&rxe_net_notifier);
}
-int rxe_net_init(void)
+int rxe_net_init(struct net_device *ndev)
{
int err;
- err = rxe_net_ipv4_init();
+ err = rxe_net_ipv4_init(ndev);
if (err)
return err;
- err = rxe_net_ipv6_init();
+ err = rxe_net_ipv6_init(ndev);
if (err)
goto err_out;
return 0;
diff --git a/drivers/infiniband/sw/rxe/rxe_net.h b/drivers/infiniband/sw/rxe/rxe_net.h
index 027b20e1bab6..56249677d692 100644
--- a/drivers/infiniband/sw/rxe/rxe_net.h
+++ b/drivers/infiniband/sw/rxe/rxe_net.h
@@ -15,7 +15,7 @@ int rxe_net_add(const char *ibdev_name, struct net_device *ndev);
void rxe_net_del(struct ib_device *dev);
int rxe_register_notifier(void);
-int rxe_net_init(void);
+int rxe_net_init(struct net_device *ndev);
void rxe_net_exit(void);
#endif /* RXE_NET_H */
--
2.27.0
next prev parent reply other threads:[~2023-06-23 9:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-23 9:57 [PATCH v6 0/8] Fix the problem that rxe can not work in net namespace Zhu Yanjun
2023-06-23 9:57 ` [PATCH v6 1/8] RDMA/rxe: Creating listening sock in newlink function Zhu Yanjun
2023-06-23 9:57 ` [PATCH v6 2/8] RDMA/rxe: Support more rdma links in init_net Zhu Yanjun
2023-06-23 9:57 ` [PATCH v6 3/8] RDMA/nldev: Add dellink function pointer Zhu Yanjun
2023-06-23 10:11 ` Bernard Metzler
2023-06-23 13:55 ` Zhu Yanjun
2023-06-23 9:57 ` [PATCH v6 4/8] RDMA/rxe: Implement dellink in rxe Zhu Yanjun
2023-06-23 9:57 ` [PATCH v6 5/8] RDMA/rxe: Replace global variable with sock lookup functions Zhu Yanjun
2023-06-23 9:57 ` Zhu Yanjun [this message]
2023-06-23 9:57 ` [PATCH v6 7/8] RDMA/rxe: Add the support of net namespace notifier Zhu Yanjun
2023-06-23 9:57 ` [PATCH v6 8/8] RDMA/rxe: Replace l_sk6 with sk6 in net namespace Zhu Yanjun
2023-06-23 13:00 ` [PATCH v6 0/8] Fix the problem that rxe can not work " Bob Pearson
2023-06-23 23:39 ` Zhu Yanjun
2024-11-12 8:49 ` '[v6,0/8] Fix the problem that rxe can not work in net namespace' Cyclinder Kuo
2024-11-12 8:49 ` Cyclinder Kuo
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