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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


             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

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