netdev - [PATCH v2 0/3] net: macb: DMA race condition fixes

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Message-Id: <20181217130541.3261-1-anssi.hannula@bitwise.fi>
Date:   Mon, 17 Dec 2018 15:05:38 +0200
From:   Anssi Hannula <anssi.hannula@...wise.fi>
To:     davem@...emloft.net, netdev@...r.kernel.org
Cc:     Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Claudiu.Beznea@...rochip.com
Subject: [PATCH v2 0/3] net: macb: DMA race condition fixes

Hi all,

Here are a couple of race condition fixes for the macb driver. The first
two are for issues observed at runtime on real HW.

v2:
- added received Tested-bys and Acked-bys to the first two patches
- in patch 3/3, moved the timestamp protection barrier closer to the
  timestamp reads
- in patch 3/3, removed unnecessary move of the addr assignment in
  gem_rx() to keep the patch minimal for maximum clarity
- in patch 3/3, clarified commit message and comments

The 3/3 is the same one I improperly sent last week as a standalone
patch.

Anssi Hannula (3):
  net: macb: fix random memory corruption on RX with 64-bit DMA
  net: macb: fix dropped RX frames due to a race
  net: macb: add missing barriers when reading descriptors

 drivers/net/ethernet/cadence/macb_main.c | 27 +++++++++++++++++++-----
 drivers/net/ethernet/cadence/macb_ptp.c  |  2 ++
 2 files changed, 24 insertions(+), 5 deletions(-)

-- 
Anssi Hannula / Bitwise Oy