ibv_modify_wq (3) - Linux Manuals

ibv_modify_wq: Modify a Work Queue (WQ).

NAME

ibv_modify_wq - Modify a Work Queue (WQ).

SYNOPSIS

#include <infiniband/verbs.h>

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

DESCRIPTION

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

RETURN VALUE

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

AUTHORS

Yishai Hadas <yishaih [at] mellanox.com>