linux-toradex.git/drivers/net/sfc, branch v2.6.32-rc3

cpumask: use zalloc_cpumask_var() where possible

2009-09-24T00:04:24+00:00

Remove open-coded zalloc_cpumask_var() and zalloc_cpumask_var_node().

Signed-off-by: Li Zefan 
Signed-off-by: Rusty Russell

netdev: drivers should make ethtool_ops const

2009-09-02T08:03:33+00:00

No need to put ethtool_ops in data, they should be const.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

netdev: convert bulk of drivers to netdev_tx_t

2009-09-01T08:14:07+00:00

In a couple of cases collapse some extra code like:
   int retval = NETDEV_TX_OK;
   ...
   return retval;
into
   return NETDEV_TX_OK;

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

sfc: Improve reliability of RX queue flushing

2009-08-27T00:38:59+00:00

Reconfiguring the port requires us to flush all DMA queues.  In
repeated testing we have found that RX flushes would sometimes fail
because the RX DMA engine was not properly isolated from the MACs.

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

sfc: Work around XMAC bug causing packet loss with some peers

2009-08-27T00:38:56+00:00

Received frames must be re-clocked by the local XGXS to the 156.25 MHz
(DDR) clock of the XGMII.  If the remote clock is slightly faster this
can reduce a minimum IPG of 64 bit-times (1 cycle) to 32 bit-times
(half a cycle).  If the XMAC detects that a frame has reached the
maximum RX frame length in the same cycle that it receives one of
these reduced IPGs, it may miss the IPG, causing two valid frames to
be treated as a single invalid frame (over-length with bad CRC).

We work around this by increasing the maximum RX frame length so that
peers with matched MTU will not provoke this bug.

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

sfc: QT2025C: Use hard reset only

2009-08-27T00:38:54+00:00

At probe time, falcon_reset_hw() performs a hard reset of the PHY
along with Falcon.  There is no need to perform a soft reset later,
and any access to standard MDIO registers before the PHY firmware has
booted can interrupt the boot process, making the port unusable.

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

sfc: Do not reinitialise XAUI serdes before it has completed reset

2009-08-27T00:38:51+00:00

falcon_reset_xaui() waits for XGXS reset to complete, but the XAUI
serdes reset may take longer.  It needs to check both reset active
bits.

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

sfc: Fix ordering of device registration and initial netif_carrier_off()

2009-08-27T00:38:49+00:00

We must call netif_carrier_off() after the device is registered, not
before, to set the operational state and user-space IFF_RUNNING flag
correctly.

Since we don't want observers to see an intermediate state, open-code
register_netdev() and add efx_update_name() and netif_carrier_off()
into the locked region.

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

sfc: Expose 100/1000BASE-T MDI-X status via ethtool

2009-06-11T09:47:11+00:00

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

net: dont update dev->trans_start in 10GB drivers

2009-05-29T08:46:26+00:00

Followup of commits 9d21493b4beb8f918ba248032fefa393074a5e2b
and 08baf561083bc27a953aa087dd8a664bb2b88e8e
(net: tx scalability works : trans_start)
(net: txq_trans_update() helper)

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Multi queue drivers can
avoid one cache miss (on dev->trans_start) in their start_xmit()
handler.

Exceptions are NETIF_F_LLTX drivers (vxge & tehuti)

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller