Restrict max packet size on rx

Team, Does setting mtu using rte_eth_dev_set_mtu limit the maximum size of the packet received on the dpdk port to the configured mtu size? On an intel machine with ixgbe port, with mtu set to 1500, no rx-offloads enabled, ixgbe dpdk port is able to receive packets greater than 1500 size and even

Re: Restrict max packet size on rx

Thanks Stephen. On Fri, Oct 18, 2024 at 10:13 PM Stephen Hemminger < step...@networkplumber.org> wrote: > On Fri, 18 Oct 2024 22:05:24 +0530 > Rajasekhar Pulluru wrote: > > > Team, > > Does setting mtu using rte_eth_dev_set_mtu limit the maximum size of the > >

[Azure] [ConnectX-3] net_mlx4: cannot access device, is mlx4_ib loaded?

Hi Team, Unable to attach ConnectX-3 mlx4 interfaces(uio_hv_generic) in DPDK. testpmd application reports below errors. mlx4_ib is loaded. Not sure if I am missing anything here. Appreciate any help to resolve this. *EAL: Detected CPU lcores: 8EAL: Detected NUMA node

Re: Dpdk packet reception

> Please take a look at the rte_power_monitor() and dpdk-l3fwd-power > application example to see if it works for you. What platform do you use? > It is only supported on recent Intel CPUs and ARMs. > > > > Regards, > > Alex > > > > *From:* Rajasekhar Pullu

Dpdk packet reception

Hi Team, Would like to know if dpdk has a select(fd)/epoll(fd) like mechanism to wake-up the application (say rx-pthread) asynchronously upon packet reception without enabling rxq interrupts? I can't afford to lose a cpu-core polling continuously to check for packets using rte_eth_rx_burst.And I

Re: ixgbe rxq interrupt not working

kplumber.org> wrote: > On Wed, 8 Mar 2023 22:54:12 +0530 > Rajasekhar Pulluru wrote: > > > No Honnappa. > > > > Thanks & Regards, > > Rajasekhar > > > > On Wed, Mar 8, 2023 at 5:49 AM Honnappa Nagarahalli < > > honnappa.nagaraha...@a

Re: ixgbe rxq interrupt not working

No Honnappa. Thanks & Regards, Rajasekhar On Wed, Mar 8, 2023 at 5:49 AM Honnappa Nagarahalli < honnappa.nagaraha...@arm.com> wrote: > > > From: Rajasekhar Pulluru > Sent: Tuesday, March 7, 2023 12:52 PM > To: dev@dpdk.org > Subject: ixgbe rxq interrupt not working

Re: ixgbe rxq interrupt not working

7-edge vfio-msix[1](:02:00.0) #>>>>> igb port irq counter is non-zero (likely to be rxq), where-as the same for ixgbe is 0. Thanks & Regards, Rajasekhar On Wed, Mar 8, 2023 at 3:12 AM Stephen Hemminger wrote: > On Wed, 8 Mar 2023 00:22:10 +0530 > Rajasekhar Pull

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. 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; //Enabl

Re: Multiple Tx-Queues not working as expected

ote: > On Fri, Feb 17, 2023 at 11:30:14AM +0530, Rajasekhar Pulluru wrote: > >Ok Stephen, thanks for the information, I can try that. > >One of the problems I see with single Tx Queue mode is that Ixia > >reports packet drops, though I confirmed with the help of coun

Re: Multiple Tx-Queues not working as expected

9:56 PM Stephen Hemminger < step...@networkplumber.org> wrote: > On Fri, 17 Feb 2023 11:30:14 +0530 > Rajasekhar Pulluru wrote: > > > Ok Stephen, thanks for the information, I can try that. > > > > One of the problems I see with single Tx Queue mode is that Ixia r

Re: Multiple Tx-Queues not working as expected

ps in TX. Is there a mechanism in DPDK to debug this? Thanks & Regards, Rajasekhar On Fri, Feb 17, 2023 at 1:21 AM Stephen Hemminger < step...@networkplumber.org> wrote: > On Thu, 16 Feb 2023 23:40:27 +0530 > Rajasekhar Pulluru wrote: > > > Hi Team, > > > > I

Multiple Tx-Queues not working as expected

Hi Team, I am trying to set-up 8 Tx-Queues (but only 1 Rx-Queue) and burst traffic out of different Tx-Queues from the same cpu core on an ixgbe nic (10G). Although transmitted packets reach the peer, reading the statistics indicates only the Tx-q[0] has non-zero packets and bytes count, the rest

[dpdk-dev] Queries on dpdk buffer allocation and kni

Dear Group members, I have been trying to understand the dpdk code and have got two queries. 1. descriptor rings and packet buffer allocation Looking at the linux native e1000 kernel driver, Memory for NIC's tx and rx descriptor rings are allocated using dma_alloc_coherent. Memory for rx packet