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From: Robert Beckett <bob.beckett@collabora.com>
To: netdev@vger.kernel.org
Cc: Robert Beckett <bob.beckett@collabora.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Vivien Didelot <vivien.didelot@gmail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 0/7] net: dsa: mv88e6xxx: features to handle network storms
Date: Tue, 10 Sep 2019 16:41:46 +0100	[thread overview]
Message-ID: <20190910154238.9155-1-bob.beckett@collabora.com> (raw)

This patch-set adds support for some features of the Marvell switch
chips that can be used to handle packet storms.

The rationale for this was a setup that requires the ability to receive
traffic from one port, while a packet storm is occuring on another port
(via an external switch with a deliberate loop). This is needed to
ensure vital data delivery from a specific port, while mitigating any
loops or DoS that a user may introduce on another port (can't guarantee
sensible users).

[patch 1/7] configures auto negotiation for CPU ports connected with
phys to enable pause frame propogation.

[patch 2/7] allows setting of port's default output queue priority for
any ingressing packets on that port.

[patch 3/7] dt-bindings for patch 2.

[patch 4/7] allows setting of a port's queue scheduling so that it can
prioritise egress of traffic routed from high priority ports.

[patch 5/7] dt-bindings for patch 4.

[patch 6/7] allows ports to rate limit their egress. This can be used to
stop the host CPU from becoming swamped by packet delivery and exhasting
descriptors.

[patch 7/7] dt-bindings for patch 6.


Robert Beckett (7):
  net/dsa: configure autoneg for CPU port
  net: dsa: mv88e6xxx: add ability to set default queue priorities per
    port
  dt-bindings: mv88e6xxx: add ability to set default queue priorities
    per port
  net: dsa: mv88e6xxx: add ability to set queue scheduling
  dt-bindings: mv88e6xxx: add ability to set queue scheduling
  net: dsa: mv88e6xxx: add egress rate limiting
  dt-bindings: mv88e6xxx: add egress rate limiting

 .../devicetree/bindings/net/dsa/marvell.txt   |  38 +++++
 drivers/net/dsa/mv88e6xxx/chip.c              | 122 ++++++++++++---
 drivers/net/dsa/mv88e6xxx/chip.h              |   5 +-
 drivers/net/dsa/mv88e6xxx/port.c              | 140 +++++++++++++++++-
 drivers/net/dsa/mv88e6xxx/port.h              |  24 ++-
 include/dt-bindings/net/dsa-mv88e6xxx.h       |  22 +++
 net/dsa/port.c                                |  10 ++
 7 files changed, 327 insertions(+), 34 deletions(-)
 create mode 100644 include/dt-bindings/net/dsa-mv88e6xxx.h

-- 
2.18.0


             reply	other threads:[~2019-09-10 15:43 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-10 15:41 Robert Beckett [this message]
2019-09-10 15:41 ` [PATCH 1/7] net/dsa: configure autoneg for CPU port Robert Beckett
2019-09-10 16:14   ` Vivien Didelot
2019-09-10 16:56   ` Florian Fainelli
2019-09-10 18:26   ` Andrew Lunn
2019-09-10 18:29     ` Florian Fainelli
2019-09-11  9:16       ` Robert Beckett
2019-09-11  9:54         ` Robert Beckett
2019-09-11 22:52         ` Andrew Lunn
2019-09-12 10:14           ` Robert Beckett
2019-09-12 10:43             ` Andrew Lunn
2019-09-11 11:43   ` kbuild test robot
2019-09-14  7:16   ` kbuild test robot
2019-09-10 15:41 ` [PATCH 2/7] net: dsa: mv88e6xxx: add ability to set default queue priorities per port Robert Beckett
2019-09-10 16:43   ` Vivien Didelot
2019-09-10 15:41 ` [PATCH 3/7] dt-bindings: " Robert Beckett
2019-09-10 16:42   ` Florian Fainelli
2019-09-10 16:49     ` Vivien Didelot
2019-09-10 20:46       ` Vladimir Oltean
2019-09-10 15:41 ` [PATCH 4/7] net: dsa: mv88e6xxx: add ability to set queue scheduling Robert Beckett
2019-09-10 17:18   ` Vivien Didelot
2019-09-10 15:41 ` [PATCH 5/7] dt-bindings: " Robert Beckett
2019-09-10 15:41 ` [PATCH 6/7] net: dsa: mv88e6xxx: add egress rate limiting Robert Beckett
2019-09-10 17:13   ` Vivien Didelot
2019-09-11 12:26   ` kbuild test robot
2019-09-10 15:41 ` [PATCH 7/7] dt-bindings: " Robert Beckett
2019-09-10 16:49 ` [PATCH 0/7] net: dsa: mv88e6xxx: features to handle network storms Florian Fainelli
2019-09-11  9:43   ` Robert Beckett
2019-09-11 11:21   ` Ido Schimmel
2019-09-11 11:49     ` Robert Beckett
2019-09-11 22:58       ` Andrew Lunn
2019-09-12  9:05         ` Ido Schimmel
2019-09-12  9:03       ` Ido Schimmel
2019-09-12  9:21         ` Andrew Lunn
2019-09-12 16:25         ` Florian Fainelli
2019-09-12 16:46           ` Robert Beckett
2019-09-12 17:41             ` Florian Fainelli
2019-09-13 12:47               ` Robert Beckett
2019-09-10 17:19 ` Vivien Didelot
2019-09-11  9:46   ` Robert Beckett
2019-09-11 15:31     ` Vivien Didelot
2019-09-11 23:01     ` Andrew Lunn

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