Date: Sun, 23 Nov 2025 21:31:06 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 290793] iovctl on mlx5en won't work Message-ID: <bug-290793-7501-9h4mv5CCSa@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-290793-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-290793-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=290793 --- Comment #10 from David BOYER <jcduss13@gmail.com> --- (In reply to Bjoern A. Zeeb from comment #9) It's hard to tell. You can install mstflint: pkg install -y mstflint Then execute: mstconfig -d pci0:2:0:0 q | grep -E 'NUM_OF_VFS|SRIOV_EN' NUM_OF_VFS -> number of VFS allowed SRIOV_EN -> sr-iov enabled On my computer: mstconfig -d pci0:1:0:0 q | grep -E 'NUM_OF_VFS|SRIOV_EN' NUM_OF_VFS 8 SRIOV_EN True(1) This can be changed (enabling sriov and setting 4 VFs) : mstconfig -d pci0:2:0:0 set SRIOV_EN=1 NUM_OF_VFS=4 Maybe your bios is not fully compatible or missing something, maybe something else. From https://docs.nvidia.com/networking/display/mlnxofedv53100143/single+root+io+virtualization+(sr-iov) "SR-IOV" must be enabled (obviously) but virtualization too. For AMD: > dmesg | grep --color -i svm For Intel: the freebsd forum says it shoudld be : dmesg | grep VT-x. But I cannot confirm. I know for sure that iommu must be enabled, but you already know. If that does not help, I might need more information. The models of your motherboard and cpu could help. -- You are receiving this mail because: You are the assignee for the bug.
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