linux-kernel - [PATCH 0/5] QRTR flow control improvements

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Message-Id: <20190508060643.30936-1-bjorn.andersson@linaro.org>
Date:   Tue,  7 May 2019 23:06:38 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Arun Kumar Neelakantam <aneela@...eaurora.org>,
        Chris Lew <clew@...eaurora.org>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: [PATCH 0/5] QRTR flow control improvements

In order to prevent overconsumption of resources on the remote side QRTR
implements a flow control mechanism.

Move the handling of the incoming confirm_rx to the receiving process to ensure
incoming flow is controlled. Then implement outgoing flow control, using the
recommended algorithm of counting outstanding non-confirmed messages and
blocking when hitting a limit. The last three patches refactors the node
assignment and port lookup, in order to remove the worker in the receive path.

Bjorn Andersson (5):
  net: qrtr: Move resume-tx transmission to recvmsg
  net: qrtr: Implement outgoing flow control
  net: qrtr: Migrate node lookup tree to spinlock
  net: qrtr: Make qrtr_port_lookup() use RCU
  net: qrtr: Remove receive worker

 net/qrtr/qrtr.c | 265 +++++++++++++++++++++++++++++++++++-------------
 1 file changed, 196 insertions(+), 69 deletions(-)

-- 
2.18.0