From: David S. Miller Date: Mon, 16 Aug 2021 10:36:04 +0000 (+0100) Subject: Merge branch 'stmmac-per-queue-stats' X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=23a44b77e03f577e93ad1b0ce203bd15e99285f5;p=kernel.git Merge branch 'stmmac-per-queue-stats' Vijayakannan Ayyathurai says: ==================== net: stmmac: Add ethtool per-queue statistic Adding generic ethtool per-queue statistic framework to display the statistics for each rx/tx queue. In future, users can avail it to add more per-queue specific counters. Number of rx/tx queues displayed is depending on the available rx/tx queues in that particular MAC config and this number is limited up to the MTL_MAX_{RX|TX}_QUEUES defined in the driver. Ethtool per-queue statistic display will look like below, when users start adding more counters. Example - 1: q0_tx_statA: q0_tx_statB: q0_tx_statC: | q0_tx_statX: . . . qMAX_tx_statA: qMAX_tx_statB: qMAX_tx_statC: | qMAX_tx_statX: q0_rx_statA: q0_rx_statB: q0_rx_statC: | q0_rx_statX: . . . qMAX_rx_statA: qMAX_rx_statB: qMAX_rx_statC: | qMAX_rx_statX: Example - 2: Ping test using the tx queue 3. $ tc qdisc add dev enp0s30f4 root mqprio num_tc 2 map 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 queues 3@0 1@3 hw 0 Statistic before ping: --------------------- $ ethtool -S enp0s30f4 [ snip ] q3_tx_pkt_n: 7916 q3_tx_irq_n: 316 [ snip ] $ cat /proc/interrupts [ snip ] 143: 0 0 0 316 0 0 0 0 IR-PCI-MSI 499719-edge enp0s30f4:tx-3 [ snip ] $ ping -I enp0s30f4 192.168.1.10 -i 0.01 -c 100 > /dev/null Statistic after ping: --------------------- $ ethtool -S enp0s30f4 [ snip ] q3_tx_pkt_n: 8016 q3_tx_irq_n: 320 [ snip ] $ cat /proc/interrupts [ snip ] 143: 0 0 0 320 0 0 0 0 IR-PCI-MSI 499719-edge enp0s30f4:tx-3 [ snip ] ==================== Signed-off-by: David S. Miller --- 23a44b77e03f577e93ad1b0ce203bd15e99285f5