Hi Stephen, ixgbe interfaces works correctly when not used with dpdk.
# cat /proc/interrupts | grep enp2s0f1 109: 436 0 0 0 IR-PCI-MSI 1050624-edge enp2s0f1-TxRx-0 110: 0 167 0 0 IR-PCI-MSI 1050625-edge enp2s0f1-TxRx-1 111: 0 0 306 0 IR-PCI-MSI 1050626-edge enp2s0f1-TxRx-2 112: 0 0 0 173 IR-PCI-MSI 1050627-edge enp2s0f1-TxRx-3 113: 0 0 1 0 IR-PCI-MSI 1050628-edge enp2s0f1 dmesg doesn't seem to offer any clue. # dmesg | grep ixgbe [ 7.680989] ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver [ 7.680996] ixgbe: Copyright (c) 1999-2016 Intel Corporation. [ 8.318606] ixgbe 0000:02:00.0: Multiqueue Enabled: Rx Queue count = 4, Tx Queue count = 4 XDP Queue count = 0 [ 8.477642] ixgbe 0000:02:00.0: MAC: 6, PHY: 27, PBA No: 000700-000 [ 8.477654] ixgbe 0000:02:00.0: 00:e0:ed:db:33:69 [ 8.539077] ixgbe 0000:02:00.0: Intel(R) 10 Gigabit Network Connection [ 8.888011] ixgbe 0000:02:00.1: Multiqueue Enabled: Rx Queue count = 4, Tx Queue count = 4 XDP Queue count = 0 [ 9.019755] ixgbe 0000:02:00.1: MAC: 6, PHY: 27, PBA No: 000700-000 [ 9.019760] ixgbe 0000:02:00.1: 00:e0:ed:db:33:68 [ 9.063320] ixgbe 0000:02:00.1: Intel(R) 10 Gigabit Network Connection Thanks & Regards, Rajasekhar On Wed, Mar 8, 2023 at 11:14 PM Stephen Hemminger < step...@networkplumber.org> wrote: > On Wed, 8 Mar 2023 22:54:12 +0530 > Rajasekhar Pulluru <pullururajasek...@gmail.com> wrote: > > > No Honnappa. > > > > Thanks & Regards, > > Rajasekhar > > > > On Wed, Mar 8, 2023 at 5:49 AM Honnappa Nagarahalli < > > honnappa.nagaraha...@arm.com> wrote: > > > > > > > > > > > From: Rajasekhar Pulluru <pullururajasek...@gmail.com> > > > Sent: Tuesday, March 7, 2023 12:52 PM > > > To: dev@dpdk.org > > > Subject: ixgbe rxq interrupt not working > > > > > > Hi Team, > > > > > > Bringing-up dpdk-22.07 on an intel machine with 8 ports, 4 of them > driven > > > by igb and the rest of the 4 ports driven by ixgbe. > > > [Honnappa] Do you have packets crossing between the 2 drivers? > > > > > > > > > I am following the below sequence to initialize these ports: > > > > > > dev_conf.intr_conf.lsc = 1; //Enable link state change interrupt > > > dev_conf.intr_conf.rxq = 1; //Enable RX Queue Interrupt > > > dev_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE; > > > dev_conf.rxmode.offloads = 0; > > > dev_conf.txmode.mq_mode = RTE_ETH_MQ_TX_NONE; > > > dev_conf.txmode.offloads = 0; > > > > > > rte_eth_dev_configure > > > rte_eth_rx_queue_setup > > > rte_eth_tx_queue_setup > > > rte_eth_dev_start > > > data = port_id << CHAR_BIT | queue_id; > > > rte_eth_dev_rx_intr_ctl_q(port_id, queue_id, RTE_EPOLL_PER_THREAD, > > > RTE_INTR_EVENT_ADD, (void *)((uintptr_t)data)); > > > rte_eth_dev_rx_intr_enable(port_id, queue_id); > > > > > > And then main loop repeats the below: > > > > > > rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, 1, timeout /* 200micro-sec > > > */); /* ignore return value */ > > > rte_eth_dev_rx_intr_disable(port_id, queue_id); > > > rte_eth_rx_burst(port_id, queue_id, pkts, num_pkts); > > > rte_eth_dev_rx_intr_enable(port_id, queue_id); > > > > > > The code is same for all the ports, igb ports are able to come-up and > rx > > > packets, where-as the ixgbe ports are not able to rx packets at all. > > > cat /proc/interrupts dumps vfio-msix counters for ixgbe as 0, where-as > > > it's non-zero for igb. > > > If I don't use/enable rxq interrupt for ixgbe (and remove epoll wait, > > > interrupt enable/disable from while loop) and simply poll for > > > rte_eth_rx_burst in a loop, ixgbe ports are able to rx packets. > > > > > > What could be wrong here? Appreciate any help. > > > > > > I would also like to know if there's an asynchronous rxq interrupt > > > notification to the application instead of rte_epoll_wait (and sleep). > > > > > > Thanks & Regards, > > > Rajasekhar > > > > > Does the device work as expected when not used with DPDK? > I.e does the kernel driver handle it correctly. > > > Also check the kernel dmesg log, for any relevant info. > There maybe VFIO or other overlap involved. >
