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authorLeon Romanovsky <leonro@mellanox.com>2017-06-20 07:55:53 +0300
committerLeon Romanovsky <leon@kernel.org>2017-08-10 13:28:07 +0300
commit1a6e7c31d71db34d1b9bc3acc87eaea6c2ecc997 (patch)
tree7f5a5d82f5263f7a38397e3edef00f7bc1dfb228 /include
parent8bc67414f28c995ccfa29a12984b5dae188b3df8 (diff)
RDMA/netlink: Add netlink device definitions to UAPI
Introduce new defines to rdma_netlink.h, so the RDMA configuration tool will be able to communicate with RDMA subsystem by using the shared defines. The addition of new client (NLDEV) revealed the fact that we exposed by mistake the RDMA_NL_I40IW define which is not backed by any RDMA netlink by now and it won't be exposed in the future too. So this patch reuses the value and deletes the old defines. The NLDEV operates with objects. The struct ib_device has two straightforward objects: device itself and ports of that device. This brings us to propose the following commands to work on those objects: * RDMA_NLDEV_CMD_{GET,SET,NEW,DEL} - works on ib_device itself * RDMA_NLDEV_CMD_PORT_{GET,SET,NEW,DEL} - works on ports of specific ib_device Those commands receive/return the device index (RDMA_NLDEV_ATTR_DEV_INDEX) and port index (RDMA_NLDEV_ATTR_PORT_INDEX). For device object accesses, the RDMA_NLDEV_ATTR_PORT_INDEX will return the maximum number of ports for specific ib_device and for port access the actual port index. The port index starts from 1 to follow RDMA/core internal semantics and the sysfs exposed knobs. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/rdma/rdma_netlink.h39
1 files changed, 38 insertions, 1 deletions
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index 02fe8390c18f..a44229fa5eca 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -8,7 +8,7 @@ enum {
RDMA_NL_IWCM,
RDMA_NL_RSVD,
RDMA_NL_LS, /* RDMA Local Services */
- RDMA_NL_I40IW,
+ RDMA_NL_NLDEV, /* RDMA device interface */
RDMA_NL_NUM_CLIENTS
};
@@ -222,4 +222,41 @@ struct rdma_nla_ls_gid {
__u8 gid[16];
};
+enum rdma_nldev_command {
+ RDMA_NLDEV_CMD_UNSPEC,
+
+ RDMA_NLDEV_CMD_GET, /* can dump */
+ RDMA_NLDEV_CMD_SET,
+ RDMA_NLDEV_CMD_NEW,
+ RDMA_NLDEV_CMD_DEL,
+
+ RDMA_NLDEV_CMD_PORT_GET, /* can dump */
+ RDMA_NLDEV_CMD_PORT_SET,
+ RDMA_NLDEV_CMD_PORT_NEW,
+ RDMA_NLDEV_CMD_PORT_DEL,
+
+ RDMA_NLDEV_NUM_OPS
+};
+
+enum rdma_nldev_attr {
+ /* don't change the order or add anything between, this is ABI! */
+ RDMA_NLDEV_ATTR_UNSPEC,
+
+ /* Identifier for ib_device */
+ RDMA_NLDEV_ATTR_DEV_INDEX, /* u32 */
+
+ RDMA_NLDEV_ATTR_DEV_NAME, /* string */
+ /*
+ * Device index together with port index are identifiers
+ * for port/link properties.
+ *
+ * For RDMA_NLDEV_CMD_GET commamnd, port index will return number
+ * of available ports in ib_device, while for port specific operations,
+ * it will be real port index as it appears in sysfs. Port index follows
+ * sysfs notation and starts from 1 for the first port.
+ */
+ RDMA_NLDEV_ATTR_PORT_INDEX, /* u32 */
+
+ RDMA_NLDEV_ATTR_MAX
+};
#endif /* _UAPI_RDMA_NETLINK_H */

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