man/ibv_create_rwq_ind_table.3

.\" -*- nroff -*-
.\"
.TH CREATE_RWQ_IND_TBL 3  2016-07-27 libibverbs "Libibverbs Programmer's Manual"
.SH "NAME"
ibv_create_rwq_ind_table, ibv_destroy_rwq_ind_table  \- create or destroy a Receive Work Queue Indirection Table (RWQ IND TBL).
.SH "SYNOPSIS"
.nf
.B #include <infiniband/verbs.h>
.sp
.BI "struct ibv_rwq_ind_table *ibv_create_rwq_ind_table(struct ibv_context " "*context,"
.BI "                                                           struct ibv_rwq_ind_table_init_attr " "*init_attr" );
.sp
.BI "int ibv_destroy_rwq_ind_table(struct ibv_rwq_ind_table " "*rwq_ind_table" );
.fi
.SH "DESCRIPTION"
.B ibv_create_rwq_ind_table()
creates a RWQ IND TBL associated with the ibv_context
.I context\fR.
The argument
.I init_attr
is an ibv_rwq_ind_table_init_attr struct, as defined in <infiniband/verbs.h>.
.PP
.nf
struct ibv_rwq_ind_table_init_attr {
.in +8
uint32_t        log_ind_tbl_size;     /* Log, base 2, of Indirection table size */
struct          ibv_wq **ind_tbl;     /* Each entry is a pointer to Receive Work Queue */
uint32_t        comp_mask;            /* Identifies valid fields. Use ibv_ind_table_init_attr_mask */
.in -8
};
.fi
.PP
The function
.B ibv_create_rwq_ind_table()
will create a RWQ IND TBL that holds a table of Receive Work Queue.
For further usage of the created object see below
.I NOTES\fR.
.PP
.B ibv_destroy_rwq_ind_table()
destroys the RWQ IND TBL
.I rwq_ind_table\fR.
.SH "RETURN VALUE"
.B ibv_create_rwq_ind_table()
returns a pointer to the created RWQ IND TBL, or NULL if the request fails.
.PP
.B ibv_destroy_rwq_ind_table()
returns 0 on success, or the value of errno on failure (which indicates the failure reason).
.SH "NOTES"
The created object should be used as part of
.I ibv_create_qp_ex()
to enable dispatching of incoming packets based on some RX hash configuration.
.SH "SEE ALSO"
.BR ibv_create_wq (3),
.BR ibv_modify_wq (3),
.BR ibv_create_qp_ex (3),
.SH "AUTHORS"
.TP
Yishai Hadas <yishaih@mellanox.com>