From: "Yang, Zhiyong" <zhiyong.yang@intel.com>
To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>
Cc: "Yao, Lei A" <lei.a.yao@intel.com>, "dev@dpdk.org" <dev@dpdk.org>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"Yigit, Ferruh" <ferruh.yigit@intel.com>,
"Wiles, Keith" <keith.wiles@intel.com>,
"stephen@networkplumber.org" <stephen@networkplumber.org>
Subject: Re: [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPORTS from 32 to 1024
Date: Mon, 4 Sep 2017 14:18:34 +0000 [thread overview]
Message-ID: <E182254E98A5DA4EB1E657AC7CB9BD2A8AF0D7D9@BGSMSX101.gar.corp.intel.com> (raw)
In-Reply-To: <2601191342CEEE43887BDE71AB9772584F244EC0@irsmsx105.ger.corp.intel.com>
Hi, konstantin:
> > > It should be possible to have a dynamically allocated ethdev array,
> > > which would allow use to have a default value - which could be e.g.
> > > 32 or 64 as now - while also allowing a run-time parameter to increase that
> to thousands if needed.
> > >
> > > /Bruce
> >
> > In testpmd, the following function will be called to validate the port_id.
> > So, It is necessary to modify the max port num RTE_MAX_ETHPORTS.
>
> There are quite a lot memory allocations (both static an dynamic) inside DPDK
> libs and sample apps that use RTE_MAX_ETHPORTS.
> Increasing RTE_MAX_ETHPORTS would increase DPDK memory requirements
> quite significantly.
> Why do you think it is *necessary* to increase default RTE_MAX_ETHPORTS to
> 1024?
> Konstantin
One reason is that some users have the requirement of more than 32 ports now.
But it need to reconfigure and recompile dpdk.
Another reason is that validating team doesn't modify the common_base when
doing regression test. But they need to validate if uint16_t port_id can work.
Bruce suggests to pass parameter and dynamically allocate ethdev array at run time.
It is another method. I'm thinking about it.
Thanks
Zhiyong
next prev parent reply other threads:[~2017-09-04 14:18 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-09 8:42 [PATCH 0/2] increase port_id range Zhiyong Yang
2017-08-09 8:42 ` [PATCH 1/2] ethdev: " Zhiyong Yang
2017-08-09 12:52 ` Ferruh Yigit
2017-08-09 12:57 ` Wiles, Keith
2017-08-10 0:53 ` Yang, Zhiyong
2017-08-10 0:51 ` Yang, Zhiyong
2017-08-09 8:42 ` [PATCH 2/2] examples: " Zhiyong Yang
2017-08-09 14:48 ` Stephen Hemminger
2017-08-10 1:03 ` Yang, Zhiyong
2017-08-09 9:00 ` [PATCH 0/2] " De Lara Guarch, Pablo
2017-08-09 9:17 ` Yang, Zhiyong
2017-09-04 5:57 ` [PATCH v2 0/4] " Zhiyong Yang
2017-09-04 5:57 ` [PATCH v2 1/4] ethdev: " Zhiyong Yang
2017-09-04 9:06 ` Bruce Richardson
2017-09-04 9:29 ` Ferruh Yigit
2017-09-04 9:47 ` Yang, Zhiyong
2017-09-04 13:12 ` Adrien Mazarguil
2017-09-04 13:17 ` Richardson, Bruce
2017-09-04 13:36 ` Adrien Mazarguil
2017-09-04 13:59 ` Yang, Zhiyong
2017-09-04 14:41 ` Adrien Mazarguil
2017-09-05 6:51 ` Yang, Zhiyong
2017-09-06 8:32 ` Hemant Agrawal
2017-09-06 8:48 ` Yang, Zhiyong
[not found] ` <CALZ3Guikt9x8sz-oEKCuDCSp_wtKa64bSXTrMhqcWyg7f_dS7g@mail.gmail.com>
2017-09-07 0:45 ` Yang, Zhiyong
2017-09-04 5:57 ` [PATCH v2 2/4] examples: " Zhiyong Yang
2017-09-04 14:15 ` Hunt, David
2017-09-04 15:01 ` Yang, Zhiyong
2017-09-04 5:57 ` [PATCH v2 3/4] common_base: extend RTE_MAX_ETHPORTS from 32 to 1024 Zhiyong Yang
2017-09-04 7:46 ` Yao, Lei A
2017-09-04 7:59 ` Yang, Zhiyong
2017-09-04 9:09 ` Bruce Richardson
2017-09-04 10:05 ` Yang, Zhiyong
2017-09-04 10:27 ` Ananyev, Konstantin
2017-09-04 14:18 ` Yang, Zhiyong [this message]
2017-09-06 8:42 ` Hemant Agrawal
2017-09-06 8:52 ` Yang, Zhiyong
2017-09-04 10:29 ` Bruce Richardson
2017-09-04 9:27 ` Ananyev, Konstantin
2017-09-04 5:57 ` [PATCH v2 4/4] testpmd: add flexibility to mbuf allocation Zhiyong Yang
2017-09-09 14:47 ` [PATCH v3 0/4] increase port_id range Zhiyong Yang
2017-09-09 14:47 ` [PATCH v3 1/4] ethdev: " Zhiyong Yang
2017-09-11 9:37 ` Adrien Mazarguil
2017-09-11 10:51 ` Yang, Zhiyong
2017-09-11 10:21 ` Ferruh Yigit
2017-09-13 2:26 ` Yang, Zhiyong
2017-09-13 11:56 ` Ferruh Yigit
2017-09-13 12:15 ` Yang, Zhiyong
2017-09-13 12:18 ` Thomas Monjalon
2017-09-13 13:33 ` Ferruh Yigit
2017-09-19 6:05 ` Yang, Zhiyong
2017-09-19 12:30 ` Wiles, Keith
2017-09-14 12:49 ` Ferruh Yigit
2017-09-15 5:11 ` Yang, Zhiyong
2017-09-09 14:47 ` [PATCH v3 2/4] test: " Zhiyong Yang
2017-09-09 14:47 ` [PATCH v3 3/4] examples: " Zhiyong Yang
2017-09-14 14:41 ` Ferruh Yigit
2017-09-09 14:47 ` [PATCH v3 4/4] librte_mbuf: modify port initialization value Zhiyong Yang
2017-09-11 10:23 ` [PATCH v3 0/4] increase port_id range Ferruh Yigit
2017-09-11 11:25 ` Yang, Zhiyong
2017-09-13 8:14 ` Matej Vido
2017-09-13 8:21 ` Yang, Zhiyong
2017-09-18 14:54 ` Laatz, Kevin
2017-09-19 1:39 ` Yang, Zhiyong
2017-09-11 10:26 ` Ferruh Yigit
2017-09-11 10:55 ` Yang, Zhiyong
2017-09-11 11:24 ` Ferruh Yigit
2017-09-21 8:32 ` [PATCH v4 0/5] " Zhiyong Yang
2017-09-21 8:32 ` [PATCH v4 1/5] net/bonding: remove bonding APIs using ABI versioning Zhiyong Yang
2017-09-21 10:36 ` Ferruh Yigit
2017-09-22 2:02 ` Yang, Zhiyong
2017-09-21 8:32 ` [PATCH v4 2/5] ethdev: increase port_id range Zhiyong Yang
2017-09-21 11:49 ` Adrien Mazarguil
2017-10-06 14:34 ` Nélio Laranjeiro
2017-09-21 8:32 ` [PATCH v4 3/5] examples: " Zhiyong Yang
2017-09-21 8:32 ` [PATCH v4 4/5] test: " Zhiyong Yang
2017-09-21 8:32 ` [PATCH v4 5/5] librte_mbuf: modify port initialization value Zhiyong Yang
2017-09-25 3:22 ` [PATCH v5 0/5] increase port_id range Zhiyong Yang
2017-09-25 3:22 ` [PATCH v5 1/5] net/bonding: remove bonding APIs using ABI versioning Zhiyong Yang
2017-09-25 11:34 ` Ferruh Yigit
2017-09-25 3:22 ` [PATCH v5 2/5] ethdev: increase port_id range Zhiyong Yang
2017-09-25 11:37 ` Ferruh Yigit
2017-09-25 12:06 ` Ferruh Yigit
2017-09-26 7:01 ` Yang, Zhiyong
2017-09-27 18:44 ` Ferruh Yigit
2017-09-28 2:12 ` Yang, Zhiyong
2017-09-25 3:22 ` [PATCH v5 3/5] examples: " Zhiyong Yang
2017-09-25 3:22 ` [PATCH v5 4/5] test: " Zhiyong Yang
2017-09-25 3:22 ` [PATCH v5 5/5] librte_mbuf: modify port initialization value Zhiyong Yang
2017-09-29 7:17 ` [PATCH v6 0/5] increase port_id range Zhiyong Yang
2017-09-29 7:17 ` [PATCH v6 1/5] net/bonding: remove bonding APIs using ABI versioning Zhiyong Yang
2017-09-29 7:17 ` [PATCH v6 2/5] ethdev: increase port_id range Zhiyong Yang
2017-09-29 7:17 ` [PATCH v6 3/5] examples: " Zhiyong Yang
2017-09-29 7:17 ` [PATCH v6 4/5] test: " Zhiyong Yang
2017-09-29 7:17 ` [PATCH v6 5/5] librte_mbuf: modify port initialization value Zhiyong Yang
2017-10-06 2:15 ` [PATCH v6 0/5] increase port_id range Ferruh Yigit
2017-10-06 13:31 ` Gaëtan Rivet
2017-10-06 14:29 ` Thomas Monjalon
2017-10-06 16:02 ` Thomas Monjalon
2017-10-11 21:21 ` Ferruh Yigit
2017-10-12 1:33 ` Yang, Zhiyong
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