IONIC_DV_CTX_GET_UDMA_COUNT(3)                       Ionic Programmer's Manual

NAME
       ionic_dv_ctx_get_udma_count - Get number of UDMA pipelines

SYNOPSIS
              #include <infiniband/ionic_dv.h>

              uint8_t ionic_dv_ctx_get_udma_count(struct ibv_context *ibctx);

DESCRIPTION
       ionic_dv_ctx_get_udma_count() returns the number of UDMA pipelines
       available on the ionic device associated with ibctx.

       UDMA pipelines are independent data paths through the device.  Queues
       can be assigned to specific pipelines using
       ionic_dv_pd_set_udma_mask(3) on a protection domain before creating the
       queues.

ARGUMENTS
       ibctx  The device context to query.  Must be an ionic device context.

RETURN VALUE
       Returns the number of UDMA pipelines available on the device.  Returns
       0 if ibctx is not an ionic device context.

SEE ALSO
       ionicdv(7), ionic_dv_ctx_get_udma_mask(3),
       ionic_dv_pd_get_udma_mask(3), ionic_dv_pd_set_udma_mask(3)

AUTHORS
       Advanced Micro Devices, Inc.

ionic                             2025-06-23    IONIC_DV_CTX_GET_UDMA_COUNT(3)