mbox series

[net,v2,0/4] net: ll_temac: Bugfixes

Message ID cover.1582267079.git.esben@geanix.com (mailing list archive)
Headers show
Series net: ll_temac: Bugfixes | expand

Message

Esben Haabendal Feb. 21, 2020, 6:47 a.m. UTC 
Fix a number of bugs which have been present since the first commit.

The bugs fixed in patch 1,2 and 4 have all been observed in real systems, and
was relatively easy to reproduce given an appropriate stress setup.

Changes since v1:

- Changed error handling of of dma_map_single() in temac_start_xmit() to drop
  packet instead of returning NETDEV_TX_BUSY.

Esben Haabendal (4):
  net: ll_temac: Fix race condition causing TX hang
  net: ll_temac: Add more error handling of dma_map_single() calls
  net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC
    pressure
  net: ll_temac: Handle DMA halt condition caused by buffer underrun

 drivers/net/ethernet/xilinx/ll_temac.h      |   4 +
 drivers/net/ethernet/xilinx/ll_temac_main.c | 209 ++++++++++++++++----
 2 files changed, 175 insertions(+), 38 deletions(-)

Comments

David Miller Feb. 22, 2020, 12:05 a.m. UTC | #1 
From: Esben Haabendal <esben@geanix.com>
Date: Fri, 21 Feb 2020 07:47:09 +0100

> Fix a number of bugs which have been present since the first commit.
> 
> The bugs fixed in patch 1,2 and 4 have all been observed in real systems, and
> was relatively easy to reproduce given an appropriate stress setup.
> 
> Changes since v1:
> 
> - Changed error handling of of dma_map_single() in temac_start_xmit() to drop
>   packet instead of returning NETDEV_TX_BUSY.

Series applied, thanks.