netdev - [PATCHv2 net 0/2] Add netdev_level_ratelimited to avoid netdev msg flush

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Message-Id: <20190809002941.15341-1-liuhangbin@gmail.com>
Date:   Fri,  9 Aug 2019 08:29:39 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     netdev@...r.kernel.org
Cc:     Joe Perches <joe@...ches.com>,
        Thomas Falcon <tlfalcon@...ux.ibm.com>,
        "David S . Miller" <davem@...emloft.net>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCHv2 net 0/2] Add netdev_level_ratelimited to avoid netdev msg flush

This patch set add netdev_level_ratelimited to avoid netdev msg flush.
The second patch fixed ibmveth msg flush when add lots of(e.g. 2000) group
memberships in one group at the same time.

In my testing, there will be the

ibmveth 30000003 env3: h_multicast_ctrl rc=4 when adding an entry to the filter table

error when add more thann 256 memberships in one multicast group. I haven't
found this issue on other driver. It looks like an ibm driver issue and need
to be fixed separately.

v2: add netdev_level_ratelimited as Joe Perches suggested

Hangbin Liu (2):
  netdevice.h: add netdev_level_ratelimited for netdevice
  ibmveth: use net_err_ratelimited when set_multicast_list

 drivers/net/ethernet/ibm/ibmveth.c |  5 ++-
 include/linux/netdevice.h          | 53 ++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 3 deletions(-)

-- 
2.19.2