SMB Direct with Emulex

Configuring Virtual LAN (VLAN) on the switch, please refer to your switch vendor’s configuration guide to create VLANs on the switch and tagging or trunking poorts on the vlan's. 
Below is a sample configuration for a Cisco Nexus switch:

#Enter configuration mode by typing “configure terminal”
configure terminal
#Enter configuration mode for a connected port using the “interface <type> <slot/port>” command.
interface ethernet 1/1
#Select the PFC mode using the “priority-flow-control <auto/on>” command. CHOOSE “auto.” Then get back to base
configuration mode using the “exit” command.
priority-flow-control auto
exit
#Repeat steps for the other ports that you are going to use for SMB Direct to.

#Configure Priority Flow Control (PFC) on the switch
#Please refer to your switch vendor’s guide for creating priority group and enabling PFC. This step enlists the detailed steps for configuring
#PFC and QoS for RoCE traffic for a Cisco Nexus switch:
#Create a priority group for RoCE traffic with a priority of 5. There are several commands needed to accomplish this task. Type the
#following commands listed in the order shown below:
class-map type qos roce
match cos 5
exit
class-map type queuing roce
match qos-group 5
exit
class-map type network-qos roce
match qos-group 5
exit

#Assign the Quality of Service (QoS) group for the different types of traffic. Enter into QoS policy map configuration mode for
#RoCE using the “policy-map type <mode> <group>” command. Type the following commands listed in the order shown below:
policy-map type qos roce
class roce
set qos-group 5
exit
class class-default
exit
# If you are going to use fcoe toe add fcoe classes to. If not you can skip de fcoe class.
class class-fcoe
set qos-group 1
exit
exit

#Allocate the appropriate bandwidth for the types of traffic. Enter into queuing policy map configuration mode for RoCE using
the “policy-map type <mode> <group>” command. Type the following commands listed in the order shown below:
policy-map type queuing roce
class type queuing roce
bandwidth percent 80
exit
class type queuing class-default
bandwidth percent 10
exit
# Same here for fcoe, create it when you need it. If you don not need it configure 20% for the class-default.
class type queuing class-foce
bandwidth percent 10
exit
exit

#Set the Maximum Transition Unit (MTU) for the separate types of traffic. Enter into the network policy map configuration mode
for RoCE using the “policy-map type <mode> <group>” command. Type the following commands listed in the order shown
below:
policy-map type network-qos roce
class type network-qos roce
pause no-drop
mtu 5000
class type network-qos class-default
mtu 9216
# Again class-foce only needed when you are going to use foce.
class type network-qos class-foce
pause no-drop
mtu 2158
exit
exit

#Configure the switches service policies. Enter into the system QoS configuration mode for the switch using the “system
<mode>” command. Type the following commands listed in the order shown below:
system qos
service-policy type qos input roce
service-policy type queuing input roce
service-policy type queuing output roce
service-policy type network-qos roce
exit
#Save the running configuration.
copy running-config startup-config