From: Vladislav Zolotarov <vladz@cloudius-systems.com>
To: dev@dpdk.org
Cc: Dor Laor <dor@cloudius-systems.com>,
Avi Kivity <avi@cloudius-systems.com>,
Gleb Natapov <gleb@cloudius-systems.com>
Subject: [dpdk-dev] DPDK RSS support for ixgbevf PMD
Date: Mon, 15 Dec 2014 21:11:40 +0200 [thread overview]
Message-ID: <CAOYyTHYyx73=n2+9c9=6F6c5xLVD5F9sL6a1r--C92bwa6N7Tw@mail.gmail.com> (raw)
Hi,
I'm running an ixgbevf PMD on an AWS guests with extended networking
(SR-IOV functions of 82599 Intel's NIC) and noticed that even in the
current git tree there is no support for a multi-queue in this PMD: reta
size returned by rte_eth_dev_info_get() call is 0, while max_rx_queues and
max_tx_queues are both 4.
Linux ixgbevf-2.15.3 driver on the other hand successfully initializes 2
RSS queues: for some reason it always limits the number of RSS queues by 2.
ixgbevf_main.c: line 2539
u16 rss = min_t(u16, num_online_cpus(), 2);
The above is strange since if MRQE is set to 1010b there are 4 RSS queues
available which seems to be the case in my AWS Guest.
However, let's get back to DPDK. As I've mentioned above the SR-IOV
function i have is RSS capable (to be 100% sure I've verified both queues
are receiving packets in a multi-socket TCP test). And it's a shame I can't
utilize it with a DPDK.
I wonder if there are any blockers to add this capability to the ixgbevf
PMD and if not is it scheduled to some time soon?
Thanks in advance,
vlad
next reply other threads:[~2014-12-15 19:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-15 19:11 Vladislav Zolotarov [this message]
2014-12-15 20:33 ` Thomas Monjalon
2014-12-15 20:45 ` Dor Laor
2014-12-15 21:04 ` [dpdk-dev] DPDK on OSv (was: RSS for ixgbevf) Thomas Monjalon
2014-12-15 23:04 ` Dor Laor
2014-12-16 15:36 ` [dpdk-dev] DPDK RSS support for ixgbevf PMD Vlad Zolotarov
2014-12-17 1:03 ` Ouyang, Changchun
2014-12-17 8:46 ` Vlad Zolotarov
2014-12-18 1:32 ` Ouyang, Changchun
2014-12-18 10:33 ` Vlad Zolotarov
2014-12-19 1:17 ` Ouyang, Changchun
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