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authorTony Lu <tonylu@linux.alibaba.com>2021-12-28 16:06:09 +0300
committerDavid S. Miller <davem@davemloft.net>2022-01-02 15:07:39 +0300
commit0237a3a683e4844ddc52782d83d439d6192e11f9 (patch)
treef31c1820d9158bee3ff826d6b83350517fc672e8 /net/smc/smc_ib.h
parente63a02348958cd7cc8c8401c94de57ad97b5d06c (diff)
downloadlinux-0237a3a683e4844ddc52782d83d439d6192e11f9.tar.xz
net/smc: Introduce net namespace support for linkgroup
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 <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.h')
-rw-r--r--net/smc/smc_ib.h7
1 files changed, 7 insertions, 0 deletions
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;