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IB/uverbs: Add WQ support

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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>
This commit is contained in:
Yishai Hadas
2016-05-23 15:20:49 +03:00
committed by Doug Ledford
parent 5fd251c8b4
commit f213c05272
5 changed files with 321 additions and 0 deletions
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include/uapi/rdma/ib_user_verbs.h
+41
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@@ -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 */