Updated nroff-generated man pages

Signed-off-by: OFIWG Bot <[email protected]>

Author: ofiwg-bot

man/man7/fi_cxi.7

@@ -1,7 +1,7 @@
 .\"t
 .\" Automatically generated by Pandoc 2.9.2.1
 .\"
-.TH "fi_cxi" "7" "2024\-10\-17" "Libfabric Programmer\[cq]s Manual" "#VERSION#"
+.TH "fi_cxi" "7" "2024\-10\-31" "Libfabric Programmer\[cq]s Manual" "#VERSION#"
 .hy
 .SH NAME
 .PP
@@ -529,14 +529,14 @@ Copy-on-write semantics are broken when using pinned memory.
 See the Fork section for more information.
 .PP
 The CXI provider supports DMABUF for device memory registration.
-If the ROCR and CUDA libraries support it, the CXI provider will default
-to use DMA-buf.
+DMABUF is supported in ROCm 5.6+ and Cuda 11.7+ with nvidia open source
+driver 525+.
+Both \f[I]FI_HMEM_ROCR_USE_DMABUF\f[R] and \f[I]FI_HMEM_CUDA_USE_DMABUF
+are disabled by default in libfabric core but the CXI provider enables
+\f[R]FI_HMEM_ROCR_USE_DMABUF* by default if not specifically set.
 There may be situations with CUDA that may double the BAR consumption.
-Until this is fixed in the CUDA stack, the environment variable
-\f[I]FI_CXI_DISABLE_DMABUF_CUDA\f[R] can be used to fall back to the
-nvidia peer-memory interface.
-Also, \f[I]FI_CXI_DISABLE_DMABUF_ROCR\f[R] can be used to fall back to
-the amdgpu peer-memory interface.
+Until this is fixed in the CUDA stack, CUDA DMABUF will be disabled by
+default.
 .SS Translation Cache
 .PP
 Mapping a buffer for use by the NIC is an expensive operation.