Manual Pages  — IBV_MODIFY_WQ

ibv_modify_wq - Modify a Work Queue (WQ).

SYNOPSIS DESCRIPTION RETURN VALUE SEE ALSO AUTHORS

#include <infiniband/verbs.h> 

struct int ibv_modify_wq(struct ibv_wq *wq, 
                             struct ibv_wq_attr *wq_attr); 

ibv_modify_wq() modifys a WQ wq. The argument wq_attr is an ibv_wq_attr struct, as defined in <infiniband/verbs.h>.

struct ibv_wq_attr {
uint32_t                attr_mask;     /* Use enum ibv_wq_attr_mask */
enum ibv_wq_state       wq_state;      /* Move to this state */
enum ibv_wq_state       curr_wq_state; /* Assume this is the current state */
uint32_t                flags;         /* Flags values to modify, use enum ibv_wq_flags */
uint32_t                flags_mask;    /* Which flags to modify, use enum ibv_wq_flags */
};

The function ibv_modify_wq() will modify the WQ based on the given wq_attr->attr_mask

returns 0 on success, or the value of errno on failure (which indicates the failure reason).