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  1. 19 12月, 2018 1 次提交
  3. 05 12月, 2018 2 次提交
  5. 31 10月, 2018 1 次提交
    • M
      net: mvpp2: Fix affinity hint allocation · a6b3a3fa
      由 Marc Zyngier 提交于 
      The mvpp2 driver has the curious behaviour of passing a stack variable
to irq_set_affinity_hint(), which results in the kernel exploding
the first time anyone accesses this information. News flash: userspace
does, and irqbalance will happily take the machine down. Great stuff.

An easy fix is to track the mask within the queue_vector structure,
and to make sure it has the same lifetime as the interrupt itself.

Fixes: e531f767 ("net: mvpp2: handle cases where more CPUs are available than s/w threads")
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a6b3a3fa
  7. 06 10月, 2018 1 次提交
  9. 25 9月, 2018 2 次提交
  11. 20 9月, 2018 12 次提交
  13. 19 9月, 2018 1 次提交
  15. 17 9月, 2018 1 次提交
    • A
      net: mvpp2: let phylink manage the carrier state · 41948ccb
      由 Antoine Tenart 提交于 
      Net drivers using phylink shouldn't mess with the link carrier
themselves and should let phylink manage it. The mvpp2 driver wasn't
following this best practice as the mac_config() function made calls to
change the link carrier state. This led to wrongly reported carrier link
state which then triggered other issues. This patch fixes this
behaviour.

But the PPv2 driver relied on this misbehaviour in two cases: for fixed
links and when not using phylink (ACPI mode). The later was fixed by
adding an explicit call to link_up(), which when the ACPI mode will use
phylink should be removed.

The fixed link case was relying on the mac_config() function to set the
link up, as we found an issue in phylink_start() which assumes the
carrier is off. If not, the link_up() function is never called. To fix
this, a call to netif_carrier_off() is added just before phylink_start()
so that we do not introduce a regression in the driver.

Fixes: 4bb04326 ("net: mvpp2: phylink support")
Reported-by: NRussell King <linux@armlinux.org.uk>
Signed-off-by: NAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      41948ccb
  17. 30 8月, 2018 1 次提交
    • B
      net: mvpp2: initialize port of_node pointer · c4053ef3
      由 Baruch Siach 提交于 
      Without a valid of_node in struct device we can't find the mvpp2 port
device by its DT node. Specifically, this breaks
of_find_net_device_by_node().

For example, the Armada 8040 based Clearfog GT-8K uses Marvell 88E6141
switch connected to the &cp1_eth2 port:

&cp1_mdio {
	...

	switch0: switch0@4 {
		compatible = "marvell,mv88e6085";
		...

		ports {
			...

			port@5 {
				reg = <5>;
				label = "cpu";
				ethernet = <&cp1_eth2>;
			};
		};
	};
};

Without this patch, dsa_register_switch() returns -EPROBE_DEFER because
of_find_net_device_by_node() can't find the device_node of the &cp1_eth2
device.
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c4053ef3
  19. 16 7月, 2018 2 次提交
    • M
      net: mvpp2: add a debugfs interface for the Header Parser · 21da57a2
      由 Maxime Chevallier 提交于 
      Marvell PPv2 Packer Header Parser has a TCAM based filter, that is not
trivial to configure and debug. Being able to dump TCAM entries from
userspace can be really helpful to help development of new features
and debug existing ones.

This commit adds a basic debugfs interface for the PPv2 driver, focusing
on TCAM related features.

<mnt>/mvpp2/ --- f2000000.ethernet
              \- f4000000.ethernet --- parser --- 000 ...
                                    |          \- 001
                                    |          \- ...
                                    |          \- 255 --- ai
                                    |                  \- header_data
                                    |                  \- lookup_id
                                    |                  \- sram
                                    |                  \- valid
                                    \- eth1 ...
                                    \- eth2 --- mac_filter
                                             \- parser_entries
                                             \- vid_filter

There's one directory per PPv2 instance, named after pdev->name to make
sure names are uniques. In each of these directories, there's :

 - one directory per interface on the controller, each containing :

   - "mac_filter", which lists all filtered addresses for this port
     (based on TCAM, not on the kernel's uc / mc lists)

   - "parser_entries", which lists the indices of all valid TCAM
      entries that have this port in their port map

   - "vid_filter", which lists the vids allowed on this port, based on
     TCAM

 - one "parser" directory (the parser is common to all ports), containing :

   - one directory per TCAM entry (256 of them, from 0 to 255), each
     containing :

     - "ai" : Contains the 1 byte Additional Info field from TCAM, and

     - "header_data" : Contains the 8 bytes Header Data extracted from
       the packet

     - "lookup_id" : Contains the 4 bits LU_ID

     - "sram" : contains the raw SRAM data, which is the result of the TCAM
		lookup. This readonly at the moment.

     - "valid" : Indicates if the entry is valid of not.

All entries are read-only, and everything is output in hex form.
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      21da57a2
    • A
      net: mvpp2: switch to SPDX identifiers · f1e37e31
      由 Antoine Tenart 提交于 
      Use the appropriate SPDX license identifiers and drop the license text.
This patch is only cosmetic.
Signed-off-by: NAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f1e37e31
  21. 13 7月, 2018 8 次提交
  23. 30 6月, 2018 2 次提交
  25. 04 6月, 2018 1 次提交
  27. 01 6月, 2018 1 次提交
    • M
      net: mvpp2: Split the PPv2 driver to a dedicated directory · db9d7d36
      由 Maxime Chevallier 提交于 
      As the mvpp2 driver is growing, move this driver to a dedicated
directory and split it into several files.

Since this driver has a lot of register defines and structure
definitions, it can benefit from having all of this into a dedicated
header file, named mvpp2.h.

A good chunk of the mvpp2 code is dedicated to Header Parser handling, so
we introduce mvpp2_prs.h where all Header Parser definitions are located,
and mvpp2_prs.c containing the related code.

In the same way, mvpp2_cls.h and mvpp2_cls.c are created to contain
Classifier and RSS related code.

The former 'mvpp2.c' file is renamed 'mvpp2_main.c' so that we can keep
the driver binary named 'mvpp2'.

This commit is only about spliting the driver into multiple files and
doesn't introduce any new function, feature or fix besides removing
'static' keywords when needed.
Signed-off-by: NMaxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: NAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      db9d7d36
  29. 20 5月, 2018 1 次提交
  31. 19 5月, 2018 1 次提交
  33. 18 5月, 2018 2 次提交