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.TH "IONIC_DV_CTX_GET_UDMA_MASK" "3" "2025\-06\-23" "ionic" "Ionic Programmer\[cq]s Manual"
.SH NAME
ionic_dv_ctx_get_udma_mask \- Get mask of UDMA pipeline IDs
.SH SYNOPSIS
.IP
.EX
#include \f[B]<infiniband/ionic_dv.h>\f[R]

uint8_t ionic_dv_ctx_get_udma_mask(\f[B]struct\f[R] ibv_context *ibctx);
.EE
.SH DESCRIPTION
\f[B]ionic_dv_ctx_get_udma_mask()\f[R] returns a bitmask of all UDMA
pipeline IDs available on the ionic device associated with
\f[I]ibctx\f[R].
Each set bit represents an available pipeline.
.PP
The returned mask represents the full set of pipelines supported by the
device.
A protection domain\[cq]s UDMA mask (set via
\f[B]ionic_dv_pd_set_udma_mask\f[R](3)) must be a subset of this device
mask.
.SH ARGUMENTS
.TP
\f[I]ibctx\f[R]
The device context to query.
Must be an ionic device context.
.SH RETURN VALUE
Returns a bitmask of available UDMA pipeline IDs.
Returns 0 if \f[I]ibctx\f[R] is not an ionic device context.
.SH SEE ALSO
\f[B]ionicdv\f[R](7), \f[B]ionic_dv_ctx_get_udma_count\f[R](3),
\f[B]ionic_dv_pd_get_udma_mask\f[R](3),
\f[B]ionic_dv_pd_set_udma_mask\f[R](3)
.SH AUTHORS
Advanced Micro Devices, Inc.