From: Jesper Wramberg <jesper.wramberg@gmail.com>
To: users@dpdk.org
Subject: [dpdk-users] Possible to rate limit a VF on ConnectX-3 ?
Date: Thu, 3 Dec 2015 09:51:23 +0100 [thread overview]
Message-ID: <CALhSPotjoYfnC9WSV0SS6QQO0sK8p1fcQ2w5PBpiAu7Kti16Ow@mail.gmail.com> (raw)
Morning all,
I was wondering if anyone know if/how you can rate limit a virtual function
on a ConnectX-3 ?
I am running OFED 3.1 and NIC FW 2.34.5060 (latest from dell). I have tried
the following with no luck:
ip link set <pf> vf <x> rate <y>
mlnx_qos
mlnx_qcn
The closest I have gotten was with mlnx_qos but it seems I can only rate
limit all traffic or no traffic (using traffic class 0). I tried
manipulating the TCs with tc_wrap but it seem that all traffic falls into
user priority 0 or something ? I also tried using different TX queues in
DPDK but the result was the same. The other commands seems to have no
effect at all. My mlx4_core.conf file looks like this:
options mlx4_core port_type_array=2,2 num_vfs=3 probe_vf=3
log_num_mgm_entry_size=-1 fast_drop=1 use_prio=1 enable_qos=1
enable_vfs_qos=1
I simply tried to enable everything that might be relevant :-)
Alternatively, I also configured the transmitter using the VF to use one
specific VLAN with one specific priority. Unfortunately I couldn't seem to
rate limit based on VLAN or VLAN prio either :-(
Best Regards,
Jesper
next reply other threads:[~2015-12-03 8:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-03 8:51 Jesper Wramberg [this message]
2015-12-04 14:46 ` Jesper Wramberg
2015-12-04 21:07 ` Gilad Berman
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