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RDMA/core: Add interface to read device namespace sharing mode

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Add an interface via netlink command to query whether rdma devices are
shared among multiple net namespaces or not. When using RDMAtool, it can
be queried as,

$rdma system show netns
netns shared

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2019-02-26 14:01:48 +02:00 • committed by Jason Gunthorpe
commit cb7e0e1305
4 changed files with 42 additions and 2 deletions
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9
include/uapi/rdma/rdma_netlink.h
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@ -261,7 +261,8 @@ enum rdma_nldev_command {
RDMA_NLDEV_CMD_PORT_GET, /* can dump */
/* 6 - 8 are free to use */
RDMA_NLDEV_CMD_SYS_GET, /* can dump */
/* 7 - 8 are free to use */
RDMA_NLDEV_CMD_RES_GET = 9, /* can dump */
@ -472,6 +473,12 @@ enum rdma_nldev_attr {
*/
RDMA_NLDEV_ATTR_LINK_TYPE, /* string */
/*
* net namespace mode for rdma subsystem:
* either shared or exclusive among multiple net namespaces.
*/
RDMA_NLDEV_SYS_ATTR_NETNS_MODE, /* u8 */
/*
* Always the end
*/