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NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | NOTES | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON |
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mlx5dv_devx_create_eq(3) mlx5 Programmer’s Manualmlx5dv_devx_create_eq(3)
mlx5dv_devx_create_eq - Create an EQ object
mlx5dv_devx_destroy_eq - Destroy an EQ object
#include <infiniband/mlx5dv.h>
struct mlx5dv_devx_eq *
mlx5dv_devx_create_eq(struct ibv_context *ibctx, const void *in, size_t inlen,
void *out, size_t outlen);
int mlx5dv_devx_destroy_eq(struct mlx5dv_devx_eq *eq);
Create / Destroy an EQ object. Upon creation, the caller prepares
the in/out mail boxes based on the device specification format;
For the input mailbox, caller needs to prepare all fields except
“eqc.log_page_size” and the pas list, which will be set by the
driver. The “eqc.intr” field should be used from the output of
mlx5dv_devx_alloc_msi_vector().
ibctx RDMA device context to create the action on.
in A buffer which contains the command’s input data provided
in a device specification format.
inlen The size of in buffer in bytes.
out A buffer which contains the command’s output data according
to the device specification format.
outlen The size of out buffer in bytes.
eq The EQ object to work on.
struct mlx5dv_devx_eq {
void *vaddr;
};
vaddr EQ VA that was allocated in the driver for.
mlx5dv_devx_query_eqn() will not support vectors which are used by
mlx5dv_devx_create_eq().
Upon success mlx5dv_devx_create_eq will return a new struct
mlx5dv_devx_eq; On error NULL will be returned and errno will be
set.
Upon success mlx5dv_devx_destroy_eq will return 0, on error errno
will be returned.
If the error value is EREMOTEIO, outbox.status and outbox.syndrome
will contain the command failure details.
mlx5dv_devx_alloc_msi_vector(3), mlx5dv_devx_query_eqn(3)
Mark Zhang ⟨[email protected]⟩
This page is part of the rdma-core (RDMA Core Userspace Libraries
and Daemons) project. Information about the project can be found
at ⟨https://github.com/linux-rdma/rdma-core⟩. If you have a bug
report for this manual page, send it to
[email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-08-04.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
mlx5 2022-01-12 mlx5dv_devx_create_eq(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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