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| author | Sven Auhagen <sven.auhagen@voleatech.de> | 2020-11-11 18:04:53 +0100 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2020-12-09 15:26:58 -0800 |
| commit | ec107e775d84392b35db46f6c3baa441e074042e (patch) | |
| tree | ea09506775789abff0f62a68f57601bd93d13656 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 3eca859008a75a4ad363db65b0fe83be1a3d5ad1 (diff) | |
| download | kernel-ec107e775d84392b35db46f6c3baa441e074042e.tar.gz | |
igb: avoid transmit queue timeout in xdp path
Since we share the transmit queue with the network stack,
it is possible that we run into a transmit queue timeout.
This will reset the queue.
This happens under high load when XDP is using the
transmit queue pretty much exclusively.
netdev_start_xmit() sets the trans_start variable of the
transmit queue to jiffies which is later utilized by dev_watchdog(),
so to avoid timeout, let stack know that XDP xmit happened by
bumping the trans_start within XDP Tx routines to jiffies.
Fixes: 9cbc948b5a20 ("igb: add XDP support")
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions