Actually the cma_alloc error is present much before VF creation. dmesg is attached.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1824372 Title: mlx5 : not able to set a high MTU on the representor port for a VF Status in linux package in Ubuntu: Confirmed Bug description: Hi, Using Ubuntu 18.04, kernel 4.15.0-47, with a Mellanox MCX556M-ECAT-S25 [1]. With the distro driver, it's impossible to increase the MTU of a representor port : $ sudo ip li set enp50s0f0_0 mtu 1501 RTNETLINK answers: Invalid argument Whereas with the OFED driver [2], I can set it up to 9978 : $ sudo ip li set mtu 9978 enp50s0f0_0 $ This is blocking to use OVS offloading with jumbo frames. Could we please get the feature in the distro driver ? Thanks ! Steps to create the representor : echo 1 | sudo tee /sys/class/net/enp50s0f0/device/sriov_numvfs echo 0000:32:00.3 | sudo tee /sys/bus/pci/drivers/mlx5_core/unbind sudo devlink dev eswitch set pci/0000:32:00.0 mode switchdev echo 0000:32:00.2 | sudo tee /sys/bus/pci/drivers/mlx5_core/bind [1] http://www.mellanox.com/related-docs/prod_adapter_cards /PB_ConnectX-5_VPI_Card_SocketDirect.pdf [2] http://www.mellanox.com/page/mlnx_ofed_eula?mtag=linux_sw_drivers&mrequest=downloads&mtype=ofed&mver=MLNX_OFED-4.5-1.0.1.0&mname=MLNX_OFED_LINUX-4.5-1.0.1.0-ubuntu18.04-x86_64.tgz ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-47-generic 4.15.0-47.50 ProcVersionSignature: Ubuntu 4.15.0-47.50-generic 4.15.18 Uname: Linux 4.15.0-47-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Apr 11 14:18 seq crw-rw---- 1 root audio 116, 33 Apr 11 14:18 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Apr 11 14:42:57 2019 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' MachineType: Supermicro AS -2023US-TR4 PciMultimedia: ProcEnviron: TERM=screen-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-47-generic root=UUID=89c8c952-93fa-499c-bebe-fd9f4c4fbedb ro console=ttyS1,115200 nosplash iommu=pt amd_iommu=on l1tf=full module_blacklist=csiostor RelatedPackageVersions: linux-restricted-modules-4.15.0-47-generic N/A linux-backports-modules-4.15.0-47-generic N/A linux-firmware 1.173.3 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/21/2019 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H11DSU-iN dmi.board.vendor: Supermicro dmi.board.version: 1.02A dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 1 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.2:bd02/21/2019:svnSupermicro:pnAS-2023US-TR4:pvr0123456789:rvnSupermicro:rnH11DSU-iN:rvr1.02A:cvnSupermicro:ct1:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: AS -2023US-TR4 dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824372/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
