kernel.git/drivers/net/ethernet/calxeda, branch linux-3.7.y

net: calxedaxgmac: throw away overrun frames

2013-02-14T18:48:09Z

[ Upstream commit d6fb3be544b46a7611a3373fcaa62b5b0be01888 ] The xgmac driver assumes 1 frame per descriptor. If a frame larger than the descriptor's buffer size is received, the frame will spill over into the next descriptor. So check for received frames that span more than one descriptor and discard them. This prevents a crash if we receive erroneous large packets. Signed-off-by: Rob Herring Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

net: remove skb recycling

2012-10-07T04:40:54Z

Over time, skb recycling infrastructure got litle interest and many bugs. Generic rx path skb allocation is now using page fragments for efficient GRO / TCP coalescing, and recyling a tx skb for rx path is not worth the pain. Last identified bug is that fat skbs can be recycled and it can endup using high order pages after few iterations. With help from Maxime Bizon, who pointed out that commit 87151b8689d (net: allow pskb_expand_head() to get maximum tailroom) introduced this regression for recycled skbs. Instead of fixing this bug, lets remove skb recycling. Drivers wanting really hot skbs should use build_skb() anyway, to allocate/populate sk_buff right before netif_receive_skb() Signed-off-by: Eric Dumazet Cc: Maxime Bizon Signed-off-by: David S. Miller

net: calxedaxgmac: enable rx cut-thru mode

2012-07-11T06:25:47Z

Enabling RX cut-thru mode yields better performance as received frames start getting written to memory before a whole frame is received. Signed-off-by: Rob Herring Signed-off-by: David S. Miller

net: calxedaxgmac: set outstanding AXI bus transactions to 8

2012-07-11T06:25:47Z

Increase the number of outstanding read and write AXI transactions from 1 to 8 for better performance. Signed-off-by: Rob Herring Signed-off-by: David S. Miller

net: calxedaxgmac: fix hang on rx refill

2012-07-11T06:25:47Z

Fix intermittent hangs in xgmac_rx_refill. If a ring buffer entry already had an skb allocated, then xgmac_rx_refill would get stuck in a loop. This can happen on a rx error when we just leave the skb allocated to the entry. [ 7884.510000] INFO: rcu_preempt detected stall on CPU 0 (t=727315 jiffies) [ 7884.510000] [] (unwind_backtrace+0x1/0x98) from [] (__rcu_pending+0x11b/0x2c4) [ 7884.510000] [] (__rcu_pending+0x11b/0x2c4) from [] (rcu_check_callbacks+0xed/0x1a8) [ 7884.510000] [] (rcu_check_callbacks+0xed/0x1a8) from [] (update_process_times+0x2b/0x48) [ 7884.510000] [] (update_process_times+0x2b/0x48) from [] (tick_sched_timer+0x51/0x94) [ 7884.510000] [] (tick_sched_timer+0x51/0x94) from [] (__run_hrtimer+0x4f/0x1e8) [ 7884.510000] [] (__run_hrtimer+0x4f/0x1e8) from [] (hrtimer_interrupt+0xd7/0x1e4) [ 7884.510000] [] (hrtimer_interrupt+0xd7/0x1e4) from [] (twd_handler+0x17/0x24) [ 7884.510000] [] (twd_handler+0x17/0x24) from [] (handle_percpu_devid_irq+0x59/0x114) [ 7884.510000] [] (handle_percpu_devid_irq+0x59/0x114) from [] (generic_handle_irq+0x17/0x2c) [ 7884.510000] [] (generic_handle_irq+0x17/0x2c) from [] (handle_IRQ+0x35/0x7c) [ 7884.510000] [] (handle_IRQ+0x35/0x7c) from [] (__irq_svc+0x33/0xb8) [ 7884.510000] [] (__irq_svc+0x33/0xb8) from [] (xgmac_rx_refill+0x3a/0x140) [ 7884.510000] [] (xgmac_rx_refill+0x3a/0x140) from [] (xgmac_poll+0x265/0x3bc) [ 7884.510000] [] (xgmac_poll+0x265/0x3bc) from [] (net_rx_action+0xc3/0x200) [ 7884.510000] [] (net_rx_action+0xc3/0x200) from [] (__do_softirq+0xa3/0x1bc) Signed-off-by: Rob Herring Signed-off-by: David S. Miller

net: calxedaxgmac: fix net timeout recovery

2012-07-11T06:25:47Z

Fix net tx watchdog timeout recovery. The descriptor ring was reset, but the DMA engine was not reset to the beginning of the ring. Signed-off-by: Rob Herring Signed-off-by: David S. Miller

net: use eth_hw_addr_random() and reset addr_assign_type

2012-02-15T20:34:17Z

Use eth_hw_addr_random() instead of calling random_ether_addr() to set addr_assign_type correctly to NET_ADDR_RANDOM. Reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address. v2: adapt to renamed eth_hw_addr_random() Signed-off-by: Danny Kukawka Signed-off-by: David S. Miller

xgmac: cleanups

2012-01-05T18:23:00Z

Make local function static, make ethtool_ops const. Compile tested only. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

net: calxeda xgmac ethernet driver add missing HAS_IOMEM dependency

2011-12-27T18:01:44Z

Fix allyesconfig build on architectures without IOMEM: drivers/net/ethernet/calxeda/xgmac.c:1800:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] Signed-off-by: Heiko Carstens Cc: Rob Herring Acked-by: Rob Herring Signed-off-by: David S. Miller

net: add calxeda xgmac ethernet driver

2011-11-29T06:15:24Z

Add support for the XGMAC 10Gb ethernet device in the Calxeda Highbank SOC. Signed-off-by: Rob Herring Signed-off-by: David S. Miller