From: Alex Elder <elder@linaro.org>
To: davem@davemloft.net, kuba@kernel.org
Cc: evgreen@chromium.org, subashab@codeaurora.org,
cpratapa@codeaurora.org, bjorn.andersson@linaro.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net-next 0/4] net: ipa: IPA v4.5 aggregation and Qtime
Date: Mon, 30 Nov 2020 17:37:08 -0600 [thread overview]
Message-ID: <20201130233712.29113-1-elder@linaro.org> (raw)
This series updates some IPA register definitions that change in
substantive ways for IPA v4.5.
One register defines parameters used by an endpoint to aggregate
multiple packets into a buffer. The size and position of most
fields in that register have changed with this new hardware version,
and consequently the function that programs it needs to be done a
bit differently. The first patch takes care of this.
Second, IPA v4.5 introduces a unified time keeping component to be
used in several places by the IPA hardware. A main clock divider
provides a fundamental tick rate, and several timestamped features
now define their granularity based on that. There is also a set of
"pulse generators" derived from the main tick, and these are used
to implement timers used for aggregation and head-of-line block
avoidance. The second patch adds IPA register updates to support
Qtime along with its configuration, and the last two patches
configure the timers that use it.
-Alex
Alex Elder (4):
net: ipa: update IPA aggregation registers for IPA v4.5
net: ipa: set up IPA v4.5 Qtime configuration
net: ipa: use Qtime for IPA v4.5 aggregation time limit
net: ipa: use Qtime for IPA v4.5 head-of-line time limit
drivers/net/ipa/ipa_endpoint.c | 174 +++++++++++++++++++++++++--------
drivers/net/ipa/ipa_main.c | 67 ++++++++++++-
drivers/net/ipa/ipa_reg.h | 68 +++++++++++--
3 files changed, 260 insertions(+), 49 deletions(-)
--
2.20.1
next reply other threads:[~2020-11-30 23:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-30 23:37 Alex Elder [this message]
2020-11-30 23:37 ` [PATCH net-next 1/4] net: ipa: update IPA aggregation registers for IPA v4.5 Alex Elder
2020-11-30 23:37 ` [PATCH net-next 2/4] net: ipa: set up IPA v4.5 Qtime configuration Alex Elder
2020-11-30 23:37 ` [PATCH net-next 3/4] net: ipa: use Qtime for IPA v4.5 aggregation time limit Alex Elder
2020-11-30 23:37 ` [PATCH net-next 4/4] net: ipa: use Qtime for IPA v4.5 head-of-line " Alex Elder
2020-12-02 2:16 ` [PATCH net-next 0/4] net: ipa: IPA v4.5 aggregation and Qtime Jakub Kicinski
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=20201130233712.29113-1-elder@linaro.org \
--to=elder@linaro.org \
--cc=bjorn.andersson@linaro.org \
--cc=cpratapa@codeaurora.org \
--cc=davem@davemloft.net \
--cc=evgreen@chromium.org \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=subashab@codeaurora.org \
/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).