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  1. 03 10月, 2015 3 次提交
  3. 30 9月, 2015 5 次提交
  5. 26 9月, 2015 1 次提交
  7. 25 9月, 2015 4 次提交
  9. 19 8月, 2015 1 次提交
  11. 14 8月, 2015 1 次提交
  13. 13 8月, 2015 1 次提交
  15. 12 8月, 2015 3 次提交
  17. 10 8月, 2015 1 次提交
  19. 01 8月, 2015 2 次提交
    • F
      net: dsa: Add netconsole support · 04ff53f9
      由 Florian Fainelli 提交于 
      Add support for using DSA slave network devices with netconsole, which
requires us to allocate and free custom netpoll instances and invoke the
parent network device poll controller callback.

In order for netconsole to work, we need to construct the DSA tag, but
not queue the skb for transmission on the master network device xmit
function.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      04ff53f9
    • F
      net: dsa: Refactor transmit path to eliminate duplication · 4ed70ce9
      由 Florian Fainelli 提交于 
      All tagging protocols do the same thing: increment device statistics,
make room for the tag to be inserted, create the tag, invoke the parent
network device transmit function.

In order to prepare for adding netpoll support, which requires the tag
creation, but not using the parent network device transmit function, do
some little refactoring which eliminates duplication between the 4
tagging protocols supported.

We need to return a sk_buff pointer back to the caller because the tag
specific transmit function may have to reallocate the original skb (e.g:
tag_trailer.c) and this is the one we should be transmitting, not the
original sk_buff we were passed.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4ed70ce9
  21. 29 6月, 2015 1 次提交
  23. 14 5月, 2015 1 次提交
  25. 13 5月, 2015 3 次提交
  27. 10 5月, 2015 1 次提交
    • A
      net: dsa: Add lockdep class to tx queues to avoid lockdep splat · 448b4482
      由 Andrew Lunn 提交于 
      DSA stacks an Ethernet device on top of an Ethernet device. This can
cause false positive lockdep splats for the transmit queue:
Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>

=============================================
[ INFO: possible recursive locking detected ]
4.0.0-rc7-01838-g70621a215fc7 #386 Not tainted
---------------------------------------------
kworker/0:0/4 is trying to acquire lock:
 (_xmit_ETHER#2){+.-...}, at: [<c040e95c>] sch_direct_xmit+0xa8/0x1fc

but task is already holding lock:
 (_xmit_ETHER#2){+.-...}, at: [<c03f4208>] __dev_queue_xmit+0x4d4/0x56c

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(_xmit_ETHER#2);
  lock(_xmit_ETHER#2);

To avoid this, walk the tq queues of the dsa slaves and set a lockdep
class.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      448b4482
  29. 03 4月, 2015 1 次提交
  31. 30 3月, 2015 1 次提交
  33. 26 3月, 2015 1 次提交
  35. 16 3月, 2015 1 次提交
  37. 15 3月, 2015 1 次提交
  39. 12 3月, 2015 2 次提交
  41. 26 2月, 2015 3 次提交
    • G
      net: dsa: Introduce dsa_is_port_initialized · d79d2107
      由 Guenter Roeck 提交于 
      To avoid race conditions when using the ds->ports[] array,
we need to check if the accessed port has been initialized.
Introduce and use helper function dsa_is_port_initialized
for that purpose and use it where needed.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d79d2107
    • F
      net: dsa: integrate with SWITCHDEV for HW bridging · b73adef6
      由 Florian Fainelli 提交于 
      In order to support bridging offloads in DSA switch drivers, select
NET_SWITCHDEV to get access to the port_stp_update and parent_get_id
NDOs that we are required to implement.

To facilitate the integratation at the DSA driver level, we implement 3
types of operations:

- port_join_bridge
- port_leave_bridge
- port_stp_update

DSA will resolve which switch ports that are currently bridge port
members as some Switch hardware/drivers need to know about that to limit
the register programming to just the relevant registers (especially for
slow MDIO buses).

We also take care of setting the correct STP state when slave network
devices are brought up/down while being bridge members.

Finally, when a port is leaving the bridge, we make sure we set in
BR_STATE_FORWARDING state, otherwise the bridge layer would leave it
disabled as a result of having left the bridge.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: NGuenter Roeck <linux@roeck-us.net>
Tested-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b73adef6
    • G
      net: dsa: Ensure that port array elements are initialized before being used · d87d6f44
      由 Guenter Roeck 提交于 
      A network device notifier can be called for one or more of the created
slave devices before all slave devices have been registered. This can
result in a mismatch between ds->phys_port_mask and the registered devices
by the time the call is made, and it can result in a slave device being
added to a bridge before its entry in ds->ports[] has been initialized.

Rework the initialization code to initialize entries in ds->ports[] in
dsa_slave_create. With this change, dsa_slave_create no longer needs
to return slave_dev but can return an error code instead.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d87d6f44
  43. 18 2月, 2015 1 次提交
    • G
      net: dsa: Set valid phy interface type · 19334920
      由 Guenter Roeck 提交于 
      If the phy interface mode is not found in devicetree, or if devicetree
is not configured, of_get_phy_mode returns -ENODEV. The current code
sets the phy interface mode to the return value from of_get_phy_mode
without checking if it is valid.

This invalid phy interface mode is passed as parameter to of_phy_connect
or to phy_connect_direct. This sets the phy interface mode to the invalid
value, which in turn causes problems for any code using phydev->interface.

Fixes: b31f65fb ("net: dsa: slave: Fix autoneg for phys on switch MDIO bus")
Fixes: 0d8bcdd3 ("net: dsa: allow for more complex PHY setups")
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      19334920
  45. 10 2月, 2015 1 次提交