Date: Wed, 02 Jan 2019 00:13:33 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 234553] [cxgbe][pci][ppt] T420-CR VF fails probe by ppt module for bhyve Message-ID: <bug-234553-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234553 Bug ID: 234553 Summary: [cxgbe][pci][ppt] T420-CR VF fails probe by ppt module for bhyve Product: Base System Version: 12.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: ryan@freqlabs.com Using `iovctl` I can create VFs for cxgbe0, cxgbe1. They show up in `pciconf -lv` in the ppt devclass. However, most of the device configuration appears to be invalid (see pciconf output below). In particular, the hdr=0x7f means `ppt_probe()` will return ENXIO for the device instead of BUS_PROBE_WILDCARD, preventing the device from being passed through to a bhyve VM. I naively tried modifying the vmm driver to bypass the cfg.hdrtype check, which allowed me to pass the device through to a VM, but the kernel in the VM then failed to recognize the VF as anything. It is not present in `pciconf -l` inside the VM and I see no messages about it in the VM console. dev.t4nex.0.firmware_version: 1.19.1.0 ppt0@pci0:1:1:0: class=0xffffff card=0x00000000 chip=0x48011425 rev=0xff hdr=0x7f vendor = 'Chelsio Communications Inc' device = 'T420-CR Unified Wire Ethernet Controller [VF]' -- You are receiving this mail because: You are the assignee for the bug.
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