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authorKurt Kanzenbach <kurt@linutronix.de>2025-03-21 14:52:39 +0100
committerTony Nguyen <anthony.l.nguyen@intel.com>2025-04-29 15:13:43 -0700
commit876863c3fc755730c942b4c5e1297255d81787e6 (patch)
treec5c9f5e0d9535391598c709ba7fa80c46b3f79fb /tools/perf/scripts/python/export-to-postgresql.py
parentigc: Limit netdev_tc calls to MQPRIO (diff)
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igc: Change Tx mode for MQPRIO offloading
The current MQPRIO offload implementation uses the legacy TSN Tx mode. In this mode the hardware uses four packet buffers and considers queue priorities. In order to harmonize the TAPRIO implementation with MQPRIO, switch to the regular TSN Tx mode. This mode also uses four packet buffers and considers queue priorities. In addition to the legacy mode, transmission is always coupled to Qbv. The driver already has mechanisms to use a dummy schedule of 1 second with all gates open for ETF. Simply use this for MQPRIO too. This reduces code and makes it easier to add support for frame preemption later. Tested on i225 with real time application using high priority queue, iperf3 using low priority queue and network TAP device. Acked-by: Faizal Rahim <faizal.abdul.rahim@linux.intel.com> Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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