Dell Mellanox Family of Adapters - Manual (Page 31)

User Manual for Mellanox ConnectX®-3 10/40 Gigabit Ethernet Adapters for Dell PowerEdge Servers Rev 1.1
Mellanox Technologies 31
Configure QoS. map UP 0,7 to tc0, 1,2,3 to tc1 and 4,5,6 to tc 2. set tc0,tc1 as ets and tc2 as strict.
divide ets 30% for tc0 and 70% for tc1:
tc and tc_wrap.py
The 'tc' tool is used to setup sk_prio to UP mapping, using the mqprio queue discipline.
In kernels that do not support mqprio (such as 2.6.34), an alternate mapping is created in sysfs .
The 'tc_wrap.py' tool will use either the sysfs or the 'tc' tool to configure the sk_prio to UP
mapping.
Usage:
Options:
Example: set skprio 0-2 to UP0, and skprio 3-7 to UP1 on eth4
mlnx_qos -i eth3 -s ets,ets,strict -p 0,1,1,1,2,2,2 -t 30,70
tc: 0 ratelimit: 3 Gbps, tsa: ets, bw: 30%
up: 0
skprio: 0
skprio: 1
skprio: 2 (tos: 8)
skprio: 3
skprio: 4 (tos: 24)
skprio: 5
skprio: 6 (tos: 16)
skprio: 7
skprio: 8
skprio: 9
skprio: 10
skprio: 11
skprio: 12
skprio: 13
skprio: 14
skprio: 15
up: 7
tc: 1 ratelimit: 4 Gbps, tsa: ets, bw: 70%
up: 1
up: 2
up: 3
tc: 2 ratelimit: 2 Gbps, tsa: strict
up: 4
up: 5
up: 6
tc_wrap.py -i <interface> [options]
--version show program's version number and exit
-h, --help show this help message and exit
-u SKPRIO_UP, --skprio_up=SKPRIO_UP maps sk_prio to UP. LIST is <=16 comma separated
UP. index of element is sk_prio.
-i INTF, --interface=INTF Interface name