Partial revert "e1000e: Avoid receiver overrun interrupt bursts"
authorBenjamin Poirier <bpoirier@suse.com>
Thu, 8 Feb 2018 06:47:12 +0000 (15:47 +0900)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Mon, 5 Mar 2018 18:03:52 +0000 (10:03 -0800)
commit1f0ea19722ef9dfa229a9540f70b8d1c34a98a6a
treefabde8c489b55c066804c200ef058f6775f9ae26
parent745d0bd3af99ccc8c5f5822f808cd133eadad6ac
Partial revert "e1000e: Avoid receiver overrun interrupt bursts"

This partially reverts commit 4aea7a5c5e940c1723add439f4088844cd26196d.

We keep the fix for the first part of the problem (1) described in the log
of that commit, that is to read ICR in the other interrupt handler. We
remove the fix for the second part of the problem (2), Other interrupt
throttling.

Bursts of "Other" interrupts may once again occur during rxo (receive
overflow) traffic conditions. This is deemed acceptable in the interest of
avoiding unforeseen fallout from changes that are not strictly necessary.
As discussed, the e1000e driver should be in "maintenance mode".

Link: https://www.spinics.net/lists/netdev/msg480675.html
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/e1000e/netdev.c