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NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON |
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HNSDV_CREATE_QP(3) HNS Programmer’s Manual HNSDV_CREATE_QP(3)
hnsdv_create_qp - creates a HNS specific queue pair (QP)
#include <infiniband/hnsdv.h>
struct ibv_qp *hnsdv_create_qp(struct ibv_context *context,
struct ibv_qp_init_attr_ex *qp_attr,
struct hnsdv_qp_init_attr *hns_attr);
hnsdv_create_qp() creates a HNS specific queue pair (QP) with
specific driver properties.
Please see ibv_create_qp_ex(3) man page for context and qp_attr.
hns_attr
struct hnsdv_qp_init_attr {
uint64_t comp_mask;
uint32_t create_flags;
uint8_t congest_type;
uint8_t reserved[3];
};
comp_mask
Bitmask specifying what fields in the structure are valid:
HNSDV_QP_INIT_ATTR_MASK_QP_CONGEST_TYPE:
Valid values in congest_type. Allow setting a congestion control algorithm for QP.
create_flags
Enable the QP of a feature.
congest_type
Type of congestion control algorithm:
HNSDV_QP_CREATE_ENABLE_DCQCN: Data Center Quantized
Congestion Notification HNSDV_QP_CREATE_ENABLE_LDCP: Low
Delay Control Protocol HNSDV_QP_CREATE_ENABLE_HC3: Huawei
Converged Congestion Control HNSDV_QP_CREATE_ENABLE_DIP:
Destination IP based Quantized Congestion Notification
hnsdv_create_qp() returns a pointer to the created QP, on error
NULL will be returned and errno will be set.
ibv_create_qp_ex(3)
Junxian Huang ⟨huangjunxian6@hisilicon.com⟩
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
linux-rdma@vger.kernel.org. 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
man-pages@man7.org
hns 2024-02-06 HNSDV_CREATE_QP(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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