diff --git a/doc/source/contributor/internals/quality_of_service.rst b/doc/source/contributor/internals/quality_of_service.rst
index bd0fbf85e09..4252775f126 100644
--- a/doc/source/contributor/internals/quality_of_service.rst
+++ b/doc/source/contributor/internals/quality_of_service.rst
@@ -350,12 +350,15 @@ openflow rules.
 SR-IOV
 ++++++
 
-SR-IOV bandwidth limit implementation relies on the new pci_lib function:
+SR-IOV bandwidth limit and minimum bandwidth implementation relies on the
+new pci_lib function:
 
-* set_vf_max_rate
+* set_vf_rate
 
 As the name of the function suggests, the limit is applied on a Virtual
-Function (VF).
+Function (VF). This function has a parameter called "rate_type" and
+its value can be set to "rate" or "min_tx_rate", which is for enforcing
+bandwidth limit or minimum bandwidth respectively.
 
 ip link interface has the following limitation for bandwidth limit: it uses
 Mbps as units of bandwidth measurement, not kbps, and does not support float