linux/drivers/net/ethernet/mellanox
Ido Shamay 07841f9d94 net/mlx4_en: Schedule napi when RX buffers allocation fails
When system is out of memory, refilling of RX buffers fails while
the driver continue to pass the received packets to the kernel stack.
At some point, when all RX buffers deplete, driver may fall into a
sleep, and not recover when memory for new RX buffers is once again
availible. This is because hardware does not have valid descriptors,
so no interrupt will be generated for the driver to return to work
in napi context. Fix it by schedule the napi poll function from
stats_task delayed workqueue, as long as the allocations fail.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-30 16:47:50 -04:00
..
mlx4 net/mlx4_en: Schedule napi when RX buffers allocation fails 2015-04-30 16:47:50 -04:00
mlx5/core mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures 2015-04-15 16:20:51 -04:00
Kconfig mlx5: Add driver for Mellanox Connect-IB adapters 2013-07-08 10:32:24 -07:00
Makefile mlx5: Add driver for Mellanox Connect-IB adapters 2013-07-08 10:32:24 -07:00