Hi, This is a second version of two patches sent earlier: http://marc.info/?t=138039800600001&r=1&w=2 http://marc.info/?t=138039800600002&r=1&w=2 The patch 1 is changed so that it won't touch the init/probe path. The driver will still fail if CPU0 is not around, but that was not accepted to be a bug. The patch 2 is unmodified. Test cases for EdgeRouter Lite: 1) - Start pinging Octeon from a remote host with 1 second interval. - Wait 10 seconds. - Set /proc/irq/24/smp_affinity to 2. - Wait 10 seconds. - Quit ping. - Expected result: No packet loss reported. - Unexpected/failed result: Packet loss. 2) - Boot Octeon with kernel parameter "octeon-ethernet.max_rx_cpus=1". - Saturate the Octeon with external traffic (e.g. flood ping). - Expected result: Max 50% CPU time is consumed. Second core is available for other tasks. - Unexpected/failed result: 100% CPU time is consumed. System is unresponsive. Aaro Koskinen (2): staging: octeon-ethernet: allow to set IRQ smp_affinity freely staging: octeon-ethernet: allow to use only 1 CPU for packet processing drivers/staging/octeon/ethernet-rx.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) -- 1.8.4.rc3
