IB/uverbs: Add WQ support

User space applications which use RSS functionality need to create
a work queue object (WQ). The lifetime of such an object is:
 * Create a WQ
 * Modify the WQ from reset to init state.
 * Use the WQ (by downstream patches).
 * Destroy the WQ.

These commands are added to the uverbs API.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@rimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index b6543d73d20a..c9470e511e03 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -95,6 +95,9 @@ enum {
         IB_USER_VERBS_EX_CMD_CREATE_QP = IB_USER_VERBS_CMD_CREATE_QP,
         IB_USER_VERBS_EX_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
         IB_USER_VERBS_EX_CMD_DESTROY_FLOW,
+        IB_USER_VERBS_EX_CMD_CREATE_WQ,
+        IB_USER_VERBS_EX_CMD_MODIFY_WQ,
+        IB_USER_VERBS_EX_CMD_DESTROY_WQ,
 };
 
 /*
@@ -946,4 +949,42 @@ struct ib_uverbs_destroy_srq_resp {
         __u32 events_reported;
 };
 
+struct ib_uverbs_ex_create_wq  {
+        __u32 comp_mask;
+        __u32 wq_type;
+        __u64 user_handle;
+        __u32 pd_handle;
+        __u32 cq_handle;
+        __u32 max_wr;
+        __u32 max_sge;
+};
+
+struct ib_uverbs_ex_create_wq_resp {
+        __u32 comp_mask;
+        __u32 response_length;
+        __u32 wq_handle;
+        __u32 max_wr;
+        __u32 max_sge;
+        __u32 wqn;
+};
+
+struct ib_uverbs_ex_destroy_wq  {
+        __u32 comp_mask;
+        __u32 wq_handle;
+};
+
+struct ib_uverbs_ex_destroy_wq_resp {
+        __u32 comp_mask;
+        __u32 response_length;
+        __u32 events_reported;
+        __u32 reserved;
+};
+
+struct ib_uverbs_ex_modify_wq  {
+        __u32 attr_mask;
+        __u32 wq_handle;
+        __u32 wq_state;
+        __u32 curr_wq_state;
+};
+
 #endif /* IB_USER_VERBS_H */