From f1855466e30d7a308c77e02784b06c9301f47f47 Mon Sep 17 00:00:00 2001 From: Shi Jin Date: Mon, 24 Jun 2024 21:11:14 +0000 Subject: [PATCH] prov/efa: Add missing document for FI_EFA_USE_ZCPY_RX Signed-off-by: Shi Jin --- man/fi_efa.7.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/man/fi_efa.7.md b/man/fi_efa.7.md index 478c576a76d..f2bb7a3e9ce 100644 --- a/man/fi_efa.7.md +++ b/man/fi_efa.7.md @@ -309,6 +309,14 @@ Using huge page memory has a small performance advantage, but can cause system to run out of huge page memory. By default, EFA provider will use huge page unless FI_EFA_FORK_SAFE is set to 1/on/true. +*FI_EFA_USE_ZCPY_RX* +: Enables the use of application's receive buffers in place of bounce-buffers when feasible. +(Default: 1). Setting this environment variable to 0 can disable this feature. +Explicitly setting this variable to 1 does not guarantee this feature +due to other requirements. See +https://github.com/ofiwg/libfabric/blob/main/prov/efa/docs/efa_rdm_protocol_v4.md +for details. + # SEE ALSO [`fabric`(7)](fabric.7.html),