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* [PATCH v4 0/5] QRTR flow control improvements
@ 2020-01-14  7:56 Bjorn Andersson
  2020-01-14  7:56 ` [PATCH v4 1/5] net: qrtr: Move resume-tx transmission to recvmsg Bjorn Andersson
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: Bjorn Andersson @ 2020-01-14  7:56 UTC (permalink / raw)
  To: David S. Miller
  Cc: Arun Kumar Neelakantam, Chris Lew, netdev, linux-kernel, linux-arm-msm

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 | 319 +++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 247 insertions(+), 72 deletions(-)

-- 
2.24.0


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2020-01-15  2:38 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-14  7:56 [PATCH v4 0/5] QRTR flow control improvements Bjorn Andersson
2020-01-14  7:56 ` [PATCH v4 1/5] net: qrtr: Move resume-tx transmission to recvmsg Bjorn Andersson
2020-01-14  7:57 ` [PATCH v4 2/5] net: qrtr: Implement outgoing flow control Bjorn Andersson
2020-01-14  7:57 ` [PATCH v4 3/5] net: qrtr: Migrate node lookup tree to spinlock Bjorn Andersson
2020-01-14  7:57 ` [PATCH v4 4/5] net: qrtr: Make qrtr_port_lookup() use RCU Bjorn Andersson
2020-01-14  7:57 ` [PATCH v4 5/5] net: qrtr: Remove receive worker Bjorn Andersson
2020-01-15  2:37 ` [PATCH v4 0/5] QRTR flow control improvements David Miller

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