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authorChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
commit3e4c5a6261770bced301b5e74233e7866166ea5b (patch)
tree9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_missing/host_missing/accel_missing/2976
parente5634e2806195bee44407853c4bf8776f7abfa4f (diff)
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clean up repository
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-attach-ns doesn't work correctly in SR-IOV, cannot attach NS to VF if it is attached to a PF
-Description of problem:
-We can't attach namespace to a VF (Secondary controller) unless it is not attached to a primary controller first
-
-Lately in the commit https://github.com/qemu/qemu/commit/6ccca4b6bb9f994cc04e71004e1767a3476d2b23 the file qemu/hw/nvme/ctrl.c got changed -\> in function "nvme_ns_attachment" -\> line 6819 (At the time I'm writing the bug) which is the condation in attach ns to check if the namespace is attached "`if (nvme_ns(n, nsid)) {`"
-
-This change will always result in checking the namespace attach to the PF even if we are trying to attach it to the VF.
-Steps to reproduce:
-1. Enable a VF:
-
-```
-echo 1 > /sys/bus/pci/devices/0000:01:00.0/reset
-sleep 1
-
-echo 2 > /sys/bus/pci/devices/0000:01:00.0/sriov_numvfs
-sleep 1
-
-nvme virt-mgmt /dev/nvme0 -c 1 -r 1 -a 8 -n 1
-nvme virt-mgmt /dev/nvme0 -c 1 -r 0 -a 8 -n 2
-nvme virt-mgmt /dev/nvme0 -c 1 -a 9
-sleep 1
-```
-
-2. attach namespace 1 to the PF (e.g. `vme attach-ns /dev/nvme0 -n1 -c0` )
-3. try to attach it using the nvme_cli command from the PF (e.g. `nvme attach-ns /dev/nvme0 -n1 -c1`)