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Subject: Re: [PATCH] usertools: add tool to generate balanced rss traffic flows
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To: Robin Jarry <rjarry@redhat.com>, <dev@dpdk.org>
CC: Olivier Matz <olivier.matz@6wind.com>, Jean-Mickael Guerin
<jean-mickael.guerin@6wind.com>
References: <20230413203010.638406-1-rjarry@redhat.com>
From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
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Errors-To: dev-bounces@dpdk.org
On 4/13/2023 9:30 PM, Robin Jarry wrote:
> From: 6WIND <grumly@6wind.com>
>
> usage: dpdk-rss-flows.py [-h] [-s SPORT_RANGE] [-d DPORT_RANGE] [-r]
> [-k RSS_KEY] [-t RETA_SIZE] [-j]
> RX_QUEUES SRC DST
>
> Craft IP{v6}/{TCP/UDP} traffic flows that will evenly spread over a
> given number of RX queues according to the RSS algorithm.
>
> positional arguments:
> RX_QUEUES The number of RX queues to fill.
> SRC The source IP network/address.
> DST The destination IP network/address.
>
> options:
> -h, --help show this help message and exit
> -s SPORT_RANGE, --sport-range SPORT_RANGE
> The layer 4 (TCP/UDP) source port range. Can
> be a single fixed value or a range
> <start>-<end>.
> -d DPORT_RANGE, --dport-range DPORT_RANGE
> The layer 4 (TCP/UDP) destination port range.
> Can be a single fixed value or a range
> <start>-<end>.
> -r, --check-reverse-traffic
> The reversed traffic (source <-> dest) should
> also be evenly balanced in the queues.
> -k RSS_KEY, --rss-key RSS_KEY
> The random key byte-stream used to compute the
> RSS hash. This option supports either a
> supported driver name or the hex value of the
> key (default: intel).
> -t RETA_SIZE, --reta-size RETA_SIZE
> Size of the redirection table or "RETA"
> (default: 128).
> -j, --json Output in parseable JSON format.
>
> Examples:
>
> ~$ dpdk-rss-flows.py 8 28.0.0.0/24 40.0.0.0/24
> SRC_IP DST_IP QUEUE
> 28.0.0.1 40.0.0.1 5
> 28.0.0.1 40.0.0.2 4
> 28.0.0.1 40.0.0.3 2
> 28.0.0.1 40.0.0.6 3
> 28.0.0.1 40.0.0.8 0
> 28.0.0.1 40.0.0.9 6
> 28.0.0.1 40.0.0.10 7
> 28.0.0.1 40.0.0.11 1
>
> ~$ dpdk-rss-flows.py 8 28.0.0.0/24 40.0.0.0/24 -r
> SRC_IP DST_IP QUEUE QUEUE_REVERSE
> 28.0.0.1 40.0.0.1 5 3
> 28.0.0.1 40.0.0.2 4 2
> 28.0.0.1 40.0.0.8 0 6
> 28.0.0.1 40.0.0.9 6 7
> 28.0.0.1 40.0.0.16 2 4
> 28.0.0.1 40.0.0.19 3 5
> 28.0.0.1 40.0.0.24 1 0
> 28.0.0.1 40.0.0.25 7 1
>
> ~$ dpdk-rss-flows.py 8 28.0.0.0/24 40.0.0.0/24 -s 32000-64000 -d 53
> SRC_IP SPORT DST_IP DPORT QUEUE
> 28.0.0.1 32000 40.0.0.1 53 0
> 28.0.0.1 32001 40.0.0.1 53 1
> 28.0.0.1 32004 40.0.0.1 53 4
> 28.0.0.1 32005 40.0.0.1 53 5
> 28.0.0.1 32008 40.0.0.1 53 2
> 28.0.0.1 32009 40.0.0.1 53 3
> 28.0.0.1 32012 40.0.0.1 53 6
> 28.0.0.1 32013 40.0.0.1 53 7
>
> ~$ dpdk-rss-flows.py 4 2a01:cb00:f8b:9700::/64 2620:52:0:2592::/64 -rj
> [
> {
> "queue": 0,
> "queue_reverse": 3,
> "src_ip": "2a01:cb00:f8b:9700::1",
> "dst_ip": "2620:52:0:2592::1",
> "src_port": 0,
> "dst_port": 0
> },
> {
> "queue": 3,
> "queue_reverse": 0,
> "src_ip": "2a01:cb00:f8b:9700::1",
> "dst_ip": "2620:52:0:2592::2",
> "src_port": 0,
> "dst_port": 0
> },
> {
> "queue": 2,
> "queue_reverse": 1,
> "src_ip": "2a01:cb00:f8b:9700::1",
> "dst_ip": "2620:52:0:2592::3",
> "src_port": 0,
> "dst_port": 0
> },
> {
> "queue": 1,
> "queue_reverse": 2,
> "src_ip": "2a01:cb00:f8b:9700::1",
> "dst_ip": "2620:52:0:2592::1a",
> "src_port": 0,
> "dst_port": 0
> }
> ]
>
> Cc: Olivier Matz <olivier.matz@6wind.com>
> Cc: Jean-Mickael Guerin <jean-mickael.guerin@6wind.com>
> Signed-off-by: Robin Jarry <rjarry@redhat.com>
> ---
I won't comment on the merits of inclusion of this into DPDK, but as far
as code itself, this script makes me feel insecure about my Python
skills! Can't really offer any constructive criticism, also learned a
few new tricks.
So, for the code,
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
--
Thanks,
Anatoly