Hi folks- We're doing some NVMeoF testing. We have Xeon servers with Mellanox CX4 NICs connected through an Arista 7060CX switch. We're using the kernel support for RDMA and NVMeoF in Ubuntu 16.10 with a 4.12.5 kernel. I'm trying to figure out if we're running RoCE v1 or RoCE v2. I can't seem to Google up a way to check when running the kernel solution, just answers for Mellanox OFED. Is there a way to tell? And if we're running v1, is there a way to force v2? Thanks! Some system details below if they're at all helpful. root@purley01:/home/rsa# cat /etc/os-release NAME="Ubuntu" VERSION="16.10 (Yakkety Yak)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.10" VERSION_ID="16.10" HOME_URL="http://www.ubuntu.com/"; SUPPORT_URL="http://help.ubuntu.com/"; BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="http://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; VERSION_CODENAME=yakkety UBUNTU_CODENAME=yakkety root@purley01:/home/rsa# uname -a Linux purley01 4.12.5-041205-generic #201708061334 SMP Sun Aug 6 17:35:26 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux root@purley01:/home/rsa# lsmod|egrep 'mlx|nvm|ib' nvmet_rdma 24576 0 nvmet 49152 1 nvmet_rdma nvme_rdma 28672 0 nvme_fabrics 20480 1 nvme_rdma rdma_cm 57344 3 nvme_rdma,rdma_ucm,nvmet_rdma ib_cm 49152 1 rdma_cm ib_uverbs 69632 1 rdma_ucm mlx5_ib 180224 0 ib_core 204800 9 ib_cm,rdma_cm,nvme_rdma,ib_uverbs,iw_cm,mlx5_ib,rdmavt,rdma_ucm,nvmet_rdma mlx5_core 413696 1 mlx5_ib devlink 40960 1 mlx5_core ptp 20480 2 igb,mlx5_core nvme 28672 4 nvme_core 61440 8 nvme_fabrics,nvme_rdma,nvme libahci 32768 1 ahci -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
