kernel/linux.git/drivers/net/sfc, branch v2.6.32

i2c: Add an interface to lock/unlock an I2C bus segment

2009-11-07T12:10:46+00:00

Some drivers need to be able to prevent access to an I2C bus segment for a specific period of time. Add an interface for them to do so without twiddling with i2c-core internals. Signed-off-by: Jean Delvare Acked-by: Ben Hutchings

sfc: Set ip_summed correctly for page buffers passed to GRO

2009-10-28T10:43:49+00:00

Page buffers containing packets with an incorrect checksum or using a protocol not handled by hardware checksum offload were previously not passed to LRO. The conversion to GRO changed this, but did not set the ip_summed value accordingly. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller

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