linux-stable.git/drivers/net/ethernet, branch v3.19.2

sh_eth: Fix lost MAC address on kexec

2015-03-18T13:10:51+00:00

[ Upstream commit a14c7d15ca91b444e77df08b916befdce77562ab ]

Commit 740c7f31c094703c ("sh_eth: Ensure DMA engines are stopped before
freeing buffers") added a call to sh_eth_reset() to the
sh_eth_set_ringparam() and sh_eth_close() paths.

However, setting the software reset bit(s) in the EDMR register resets
the MAC Address Registers to zero. Hence after kexec, the new kernel
doesn't detect a valid MAC address and assigns a random MAC address,
breaking DHCP.

Set the MAC address again after the reset in sh_eth_dev_exit() to fix
this.

Tested on r8a7740/armadillo (GETHER) and r8a7791/koelsch (FAST_RCAR).

Fixes: 740c7f31c094703c ("sh_eth: Ensure DMA engines are stopped before freeing buffers")
Signed-off-by: Geert Uytterhoeven 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net: bcmgenet: fix software maintained statistics

2015-03-18T13:10:51+00:00

[ Upstream commit f62ba9c14b85a682b64a4c421f91de0bd2aa8538 ]

Commit 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma
failures") added a few software maintained statistics using
BCMGENET_STAT_MIB_RX and BCMGENET_STAT_MIB_TX. These statistics are read from
the hardware MIB counters, such that bcmgenet_update_mib_counters() was trying
to read from a non-existing MIB offset for these counters.

Fix this by introducing a special type: BCMGENET_STAT_SOFT, similar to
BCMGENET_STAT_NETDEV, such that bcmgenet_get_ethtool_stats will read from the
software mib.

Fixes: 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma failures")
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net: bcmgenet: fix throughtput regression

2015-03-18T13:10:51+00:00

[ Upstream commit 4092e6acf5cb16f56154e2dd22d647023dc3d646 ]

This patch adds bcmgenet_tx_poll for the tx_rings. This can reduce the
interrupt load and send xmit in network stack on time. This also
separated for the completion of tx_ring16 from bcmgenet_poll.

The bcmgenet_tx_reclaim of tx_ring[{0,1,2,3}] operative by an interrupt
is to be not more than a certain number TxBDs. It is caused by too
slowly reclaiming the transmitted skb. Therefore, performance
degradation of xmit after 605ad7f ("tcp: refine TSO autosizing").

Signed-off-by: Jaedon Shin 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

Revert "r8169: add support for Byte Queue Limits"

2015-03-18T13:10:50+00:00

This reverts commit 1e918876853aa85435e0f17fd8b4a92dcfff53d6.

Revert BQL support in r8169 driver as several regressions
point to this commit and we cannot figure out the real
cause yet.

Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

qlcnic: Fix NAPI poll routine for Tx completion

2015-02-05T08:24:08+00:00

After d75b1ade567f ("net: less interrupt masking in NAPI")
driver's NAPI poll routine is expected to return
exact budget value if it wants to be re-called.

Signed-off-by: Shahed Shaikh 
Fixes: d75b1ade567f ("net: less interrupt masking in NAPI")
Signed-off-by: David S. Miller

amd-xgbe: Set RSS enablement based on hardware features

2015-02-05T04:31:51+00:00

The RSS support requires enablement based on the features reported by
the hardware. The setting of this flag is missing. Add support to
set the RSS enablement flag based on the reported hardware features.

Signed-off-by: Tom Lendacky 
Signed-off-by: David S. Miller

amd-xgbe: Adjust for zero-based traffic class count

2015-02-05T04:28:14+00:00

The number of traffic classes reported by the hardware is zero-based
so increment the value returned to get an actual count.

Signed-off-by: Tom Lendacky 
Signed-off-by: David S. Miller

gianfar: correct the bad expression while writing bit-pattern

2015-02-04T21:55:24+00:00

This patch correct the bad expression while writing the
bit-pattern from software's buffer to hardware registers.

Signed-off-by: Sanjeev Sharma 
Signed-off-by: David S. Miller

net/mlx4_core: Fix kernel Oops (mem corruption) when working with more than 80 VFs

2015-02-03T03:38:04+00:00

Commit de966c592802 (net/mlx4_core: Support more than 64 VFs) was meant to
allow up to 126 VFs.  However, due to leaving MLX4_MFUNC_MAX too low, using
more than 80 VFs resulted in memory corruptions (and Oopses) when more than
80 VFs were requested. In addition, the number of slaves was left too high.

This commit fixes these issues.

Fixes: de966c592802 ("net/mlx4_core: Support more than 64 VFs")
Signed-off-by: Jack Morgenstein 
Signed-off-by: Amir Vadai 
Signed-off-by: David S. Miller

sunvnet: set queue mapping when doing packet copies

2015-02-03T02:20:35+00:00

This patch fixes a bug where vnet_skb_shape() didn't set the already-selected
queue mapping when a packet copy was required. This results in using the
wrong queue index for stops/starts, hung tx queues and watchdog timeouts
under heavy load.

Signed-off-by: David L Stevens 
Acked-by: Sowmini Varadhan 
Signed-off-by: David S. Miller