linux-stable.git/drivers/net/ethernet, branch v3.14

qlge: Do not propaged vlan tag offloads to vlans

2014-03-28T21:16:50+00:00

qlge driver turns off NETIF_F_HW_CTAG_FILTER, but forgets to
turn off HW_CTAG_TX and HW_CTAG_RX on vlan devices.  With the
current settings, q-in-q will only generate a single vlan header.
Remember to mask off CTAG_TX and CTAG_RX features in vlan_features.

CC: Shahed Shaikh 
CC: Jitendra Kalsaria 
CC: Ron Mercer 
Signed-off-by: Vlad Yasevich 
Acked-by: Jitendra Kalsaria 
Signed-off-by: David S. Miller

net/mlx4_core: pass pci_device_id.driver_data to __mlx4_init_one during reset

2014-03-27T19:35:33+00:00

The second parameter of __mlx4_init_one() is used to identify whether the
pci_dev is a PF or VF. Currently, when it is invoked in mlx4_pci_slot_reset()
this information is missed.

This patch match the pci_dev with mlx4_pci_table and passes the
pci_device_id.driver_data to __mlx4_init_one() in mlx4_pci_slot_reset().

Signed-off-by: Wei Yang 
Signed-off-by: David S. Miller

net: mvneta: use devm_ioremap_resource() instead of of_iomap()

2014-03-26T20:52:42+00:00

The mvneta driver currently uses of_iomap(), which has two drawbacks:
it doesn't request the resource, and it isn't devm-style so some error
handling is needed.

This commit switches to use devm_ioremap_resource() instead, which
automatically requests the resource (so the I/O registers region shows
up properly in /proc/iomem), and also is devm-style, which allows to
get rid of some error handling to unmap the I/O registers region.

Signed-off-by: Thomas Petazzoni 
Signed-off-by: David S. Miller

net: mvneta: fix usage as a module on RGMII configurations

2014-03-26T20:52:41+00:00

Commit 5445eaf309ff ('mvneta: Try to fix mvneta when compiled as
module') fixed the mvneta driver to make it work properly when loaded
as a module in SGMII configuration, which was tested successful by the
author on the Armada XP OpenBlocks AX3, which uses SGMII.

However, it turns out that the Armada XP GP, which uses RGMII, is
affected by a similar problem: its SERDES configuration is lost when
mvneta is loaded as a module, because this configuration is set by the
bootloader, and then lost because the clock is gated by the clock
framework until the mvneta driver is loaded again and the clock is
re-enabled.

However, it turns out that for the RGMII case, setting the SERDES
configuration is not sufficient: the PCS enable bit in the
MVNETA_GMAC_CTRL_2 register must also be set, like in the SGMII
configuration.

Therefore, this commit reworks the SGMII/RGMII initialization: the
only difference between the two now is a different SERDES
configuration, all the rest is identical.

In detail, to achieve this, the commit:

 * Renames MVNETA_SGMII_SERDES_CFG to MVNETA_SERDES_CFG because it is
   not specific to SGMII, but also used on RGMII configurations.

 * Adds a MVNETA_RGMII_SERDES_PROTO definition, that must be used as
   the MVNETA_SERDES_CFG value in RGMII configurations.

 * Removes the mvneta_gmac_rgmii_set() and mvneta_port_sgmii_config()
   functions, and instead directly do the SGMII/RGMII configuration in
   mvneta_port_up(), from where those functions where called. It is
   worth mentioning that mvneta_gmac_rgmii_set() had an 'enable'
   parameter that was always passed as '1', so it was pretty useless.

 * Reworks the mvneta_port_up() function to set the MVNETA_SERDES_CFG
   register to the appropriate value depending on the RGMII vs. SGMII
   configuration. It also unconditionally set the PCS_ENABLE bit (was
   already done for SGMII, but is now also needed for RGMII), and sets
   the PORT_RGMII bit (which was already done for both SGMII and
   RGMII).

This commit was successfully tested with mvneta compiled as a module,
on both the OpenBlocks AX3 (SGMII configuration) and the Armada XP GP
(RGMII configuration).

Reported-by: Steve McIntyre 
Cc: stable@vger.kernel.org # 3.11.x: 5445eaf309ff mvneta: Try to fix mvneta when compiled as module
Signed-off-by: Thomas Petazzoni 
Signed-off-by: David S. Miller

net: mvneta: rename MVNETA_GMAC2_PSC_ENABLE to MVNETA_GMAC2_PCS_ENABLE

2014-03-26T20:52:41+00:00

Bit 3 of the MVNETA_GMAC_CTRL_2 is actually used to enable the PCS,
not the PSC: there was a typo in the name of the define, which this
commit fixes.

Cc: stable@vger.kernel.org
Signed-off-by: Thomas Petazzoni 
Signed-off-by: David S. Miller

tg3: Do not include vlan acceleration features in vlan_features

2014-03-26T19:55:10+00:00

Including hardware acceleration features in vlan_features breaks
stacked vlans (Q-in-Q) by marking the bottom vlan interface as
capable of acceleration.  This causes one of the tags to be lost
and the packets are sent with a sing vlan header.

CC: Nithin Nayak Sujir 
CC: Michael Chan 
Signed-off-by: Vlad Yasevich 
Signed-off-by: David S. Miller

net: davinci_emac: Fix rollback of emac_dev_open()

2014-03-24T19:32:03+00:00

If an error occurs during the initialization in emac_dev_open() (the
driver's ndo_open function), interrupts, DMA descriptors etc. must be freed.
The current rollback code is buggy in several ways.

  1) Freeing the interrupts. The current code will not free all interrupts
     that were requested by the driver. Furthermore,  the code tries to do a
     platform_get_resource(priv->pdev, IORESOURCE_IRQ, -1) in its last
     iteration.

     This patch fixes these bugs.

  2) Wrong order of err: and rollback: labels. If the setup of the PHY in
     the code fails, the interrupts that have been requested before are
     not freed:

        request irq
                if requesting irqs fails, goto rollback
        setup phy
                if phy setup fails, goto err
        return 0

     rollback:
        free irqs
     err:

     This patch brings the code into the correct order.

  3) The code calls napi_enable() and emac_int_enable(), but does not
     undo both in case of an error.

     This patch adds calls of emac_int_disable() and napi_disable() to the
     rollback code.

  4) RX DMA descriptors are not freed in case of an error: Right before
     requesting the irqs, the function creates DMA descriptors for the
     RX channel. These RX descriptors are never freed when we jump to either
     rollback or err.

     This patch adds code for freeing the DMA descriptors in the case of
     an initialization error. This required a modification of
     cpdma_ctrl_stop() in davinci_cpdma.c: We must be able to call this
     function to free the DMA descriptors while the DMA channels are
     in IDLE state (before cpdma_ctlr_start() was called).

Tested on a custom board with the Texas Instruments AM1808.

Signed-off-by: Christian Riesch 
Signed-off-by: David S. Miller

net: davinci_emac: Replace devm_request_irq with request_irq

2014-03-24T19:32:03+00:00

In commit 6892b41d9701283085b655c6086fb57a5d63fa47

Author: Lad, Prabhakar 
Date:   Tue Jun 25 21:24:51 2013 +0530
net: davinci: emac: Convert to devm_* api

the call of request_irq is replaced by devm_request_irq and the call
of free_irq is removed. But since interrupts are requested in
emac_dev_open, doing ifconfig up/down on the board requests the
interrupts again each time, causing devm_request_irq to fail. The
interface is dead until the device is rebooted.

This patch reverts said commit partially: It changes the driver back
to use request_irq instead of devm_request_irq, puts free_irq back in
place, but keeps the remaining changes of the original patch.

Reported-by: Jon Ringle 
Signed-off-by: Christian Riesch 
Cc: Lad, Prabhakar 
Cc: 
Signed-off-by: David S. Miller

net: micrel : ks8851-ml: add vdd-supply support

2014-03-24T04:36:47+00:00

Few platforms use external regulator to keep the ethernet MAC supplied.
So, request and enable the regulator for driver functionality.

Fixes: 66fda75f47dc (regulator: core: Replace direct ops->disable usage)
Reported-by: Russell King 
Suggested-by: Markus Pargmann 
Signed-off-by: Nishanth Menon 
Signed-off-by: David S. Miller

via-rhine: Disable device in error path

2014-03-19T20:08:29+00:00

Currently, via-rhine fails to call pci_disable_device() for errors
in rhine_init_one().

Reported-by: Huqiu Liu 
Signed-off-by: Roger Luethi 
Signed-off-by: David S. Miller