From: "Rafał Kozik" <rk@semihalf.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: dev@dpdk.org, "Marcin Wojtas" <mw@semihalf.com>,
"Michał Krawczyk" <mk@semihalf.com>,
"Tzalik, Guy" <gtzalik@amazon.com>,
evgenys@amazon.com, "Matushevsky, Alexander" <matua@amazon.com>,
"Chauskin, Igor" <igorch@amazon.com>,
"Ferruh Yigit" <ferruh.yigit@intel.com>
Subject: Re: [dpdk-dev] [PATCH 0/4] support for write combining
Date: Mon, 30 Apr 2018 10:07:07 +0200 [thread overview]
Message-ID: <CAMG3L49GLPP=EE-U9WQf7EZ2ENf6v2E+viy9vNXdEpA1usLnMg@mail.gmail.com> (raw)
In-Reply-To: <20180427113030.GA101968@bricha3-MOBL.ger.corp.intel.com>
Hello Bruce,
It should work because decision about kind of mapping is made in patch
3 based on PMD request.
ENA use only one BAR in wc mode and two other without caching,
therefore not making remap in igb_uio rather not spoil anything.
I added patch 1 because this variable is provided also outside the
DPDK to Linux generic functions. I cannot test it with all drivers,
therefore I make it configurable.
But general combination of wc and not wc PMD should work, because of patch 3.
Also if WC is enabled by PMD (like in patch 4) not all BARs will by
mapped, but only those which has prefetchable flag enabled.
Best regards,
Rafal Kozik
next prev parent reply other threads:[~2018-04-30 8:07 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-11 14:07 Rafal Kozik
2018-04-11 14:07 ` [dpdk-dev] [PATCH 1/4] igb_uio: add wc option Rafal Kozik
2018-06-27 16:34 ` Ferruh Yigit
2018-06-28 13:08 ` Rafał Kozik
2018-06-28 13:15 ` [dpdk-dev] [PATCH v2 0/4] support for write combining Rafal Kozik
2018-06-28 13:15 ` [dpdk-dev] [PATCH v2 1/4] igb_uio: add wc option Rafal Kozik
2018-06-28 14:32 ` Ferruh Yigit
2018-06-29 8:35 ` Rafał Kozik
2018-06-29 10:08 ` Ferruh Yigit
2018-06-29 10:24 ` [dpdk-dev] [PATCH v3 0/4] support for write combining Rafal Kozik
2018-06-29 10:24 ` [dpdk-dev] [PATCH v3 1/4] igb_uio: add wc option Rafal Kozik
2018-06-29 10:53 ` Ferruh Yigit
2018-06-29 12:17 ` [dpdk-dev] [PATCH v4 0/4] Support for write combining Rafal Kozik
2018-06-29 12:17 ` [dpdk-dev] [PATCH v4 1/4] igb_uio: add wc option Rafal Kozik
2018-06-29 13:11 ` Rafał Kozik
2018-06-29 13:20 ` Ferruh Yigit
2018-06-29 13:40 ` Ferruh Yigit
2018-06-29 12:17 ` [dpdk-dev] [PATCH v4 2/4] bus/pci: reference driver structure Rafal Kozik
2018-06-29 12:17 ` [dpdk-dev] [PATCH v4 3/4] eal: enable WC during resources mapping Rafal Kozik
2018-06-29 12:17 ` [dpdk-dev] [PATCH v4 4/4] net/ena: enable WC Rafal Kozik
2018-06-29 13:54 ` [dpdk-dev] [PATCH v5 0/4] Support for write combining Rafal Kozik
2018-06-29 13:54 ` [dpdk-dev] [PATCH v5 1/4] igb_uio: add wc option Rafal Kozik
2018-06-29 13:54 ` [dpdk-dev] [PATCH v5 2/4] bus/pci: reference driver structure Rafal Kozik
2018-06-29 13:54 ` [dpdk-dev] [PATCH v5 3/4] eal: enable WC during resources mapping Rafal Kozik
2018-06-29 13:54 ` [dpdk-dev] [PATCH v5 4/4] net/ena: enable WC Rafal Kozik
2018-06-29 14:26 ` [dpdk-dev] [PATCH v5 0/4] Support for write combining Ferruh Yigit
2018-06-29 22:13 ` Thomas Monjalon
2018-06-29 10:24 ` [dpdk-dev] [PATCH v3 2/4] bus/pci: reference driver structure Rafal Kozik
2018-06-29 10:24 ` [dpdk-dev] [PATCH v3 3/4] eal: enable WC during resources mapping Rafal Kozik
2018-06-29 10:24 ` [dpdk-dev] [PATCH v3 4/4] net/ena: enable WC Rafal Kozik
2018-06-28 13:15 ` [dpdk-dev] [PATCH v2 2/4] bus/pci: reference driver structure Rafal Kozik
2018-06-28 13:15 ` [dpdk-dev] [PATCH v2 3/4] eal: enable WC during resources mapping Rafal Kozik
2018-06-28 14:50 ` Ferruh Yigit
2018-06-29 8:58 ` Rafał Kozik
2018-06-29 9:05 ` Ferruh Yigit
2018-06-29 10:28 ` Rafał Kozik
2018-06-29 10:37 ` Ferruh Yigit
2018-06-28 13:15 ` [dpdk-dev] [PATCH v2 4/4] net/ena: enable WC Rafal Kozik
2018-07-02 6:52 ` Michał Krawczyk
2018-04-11 14:07 ` [dpdk-dev] [PATCH 2/4] bus/pci: reference driver structure Rafal Kozik
2018-06-27 16:36 ` Ferruh Yigit
2018-06-28 13:05 ` Rafał Kozik
2018-04-11 14:07 ` [dpdk-dev] [PATCH 3/4] eal: enable WC during resources mapping Rafal Kozik
2018-06-27 16:41 ` Ferruh Yigit
2018-06-28 13:06 ` Rafał Kozik
2018-04-11 14:07 ` [dpdk-dev] [PATCH 4/4] net/ena: enable WC Rafal Kozik
2018-06-27 16:11 ` Thomas Monjalon
2018-06-28 13:04 ` Rafał Kozik
2018-04-11 14:42 ` [dpdk-dev] [PATCH 0/4] support for write combining Bruce Richardson
2018-04-16 11:36 ` Rafał Kozik
2018-04-27 8:27 ` Rafał Kozik
2018-04-27 11:30 ` Bruce Richardson
2018-04-30 8:07 ` Rafał Kozik [this message]
2018-04-30 8:58 ` Bruce Richardson
2018-06-11 9:32 Rafał Kozik
2018-06-26 7:27 ` Rafał Kozik
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAMG3L49GLPP=EE-U9WQf7EZ2ENf6v2E+viy9vNXdEpA1usLnMg@mail.gmail.com' \
--to=rk@semihalf.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=evgenys@amazon.com \
--cc=ferruh.yigit@intel.com \
--cc=gtzalik@amazon.com \
--cc=igorch@amazon.com \
--cc=matua@amazon.com \
--cc=mk@semihalf.com \
--cc=mw@semihalf.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).