<div dir="ltr">This is because it can't negotiate the IOMMU type with any port.</div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jul 20, 2023 at 5:08 AM Thomas Monjalon <<a href="mailto:thomas@monjalon.net">thomas@monjalon.net</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello, The first error is "Cause: Error: number of ports must be even" 03/05/2023 18:13, Igor de Paula: > I am running a VM inside a VMWARE server (vSphere). > My goal it to set up DPDK with two HW ports, and set up a virtio_user to > interact with the kernel stack. > In another app I have it working but instead of virtio_user I am running > KNI, it works in IOVA-PA mode. > I am looking to replace the KNI. > > When I try to set up virtio_user port as in the doc: > <a href="https://doc.dpdk.org/guides/howto/virtio_user_as_exception_path.html#virtio-user-as-exception-path" rel="noreferrer" target="_blank">https://doc.dpdk.org/guides/howto/virtio_user_as_exception_path.html#virtio-user-as-exception-path</a> > I get a error it can't run in PA mode. > > > When I try to run as VA mode from a parameter, I get the following errors: > EAL: lib.eal log level changed from info to debug > EAL: Detected lcore 0 as core 0 on socket 0 > EAL: Detected lcore 1 as core 0 on socket 0 > EAL: Support maximum 128 logical core(s) by configuration. > EAL: Detected 2 lcore(s) > EAL: Detected 1 NUMA nodes > EAL: Checking presence of .so 'librte_eal.so.21.3' > EAL: Checking presence of .so 'librte_eal.so.21' > EAL: Checking presence of .so 'librte_eal.so' > EAL: Detected static linkage of DPDK > EAL: Ask a virtual area of 0x7000 bytes > EAL: Virtual area found at 0x100000000 (size = 0x7000) > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > EAL: DPAA Bus not present. Skipping. > EAL: VFIO PCI modules not loaded > EAL: Selected IOVA mode 'VA' > EAL: Probing VFIO support... > EAL: IOMMU type 1 (Type 1) is supported > EAL: IOMMU type 7 (sPAPR) is not supported > EAL: IOMMU type 8 (No-IOMMU) is supported > EAL: VFIO support initialized > EAL: Ask a virtual area of 0x5b000 bytes > EAL: Virtual area found at 0x100007000 (size = 0x5b000) > EAL: Setting up physically contiguous memory... > EAL: Setting maximum number of open files to 1048576 > EAL: Detected memory type: socket_id:0 hugepage_sz:1073741824 > EAL: Creating 2 segment lists: n_segs:128 socket_id:0 hugepage_sz:1073741824 > EAL: Ask a virtual area of 0x2000 bytes > EAL: Virtual area found at 0x100062000 (size = 0x2000) > EAL: Memseg list allocated at socket 0, page size 0x100000kB > EAL: Ask a virtual area of 0x2000000000 bytes > EAL: Virtual area found at 0x140000000 (size = 0x2000000000) > EAL: VA reserved for memseg list at 0x140000000, size 2000000000 > EAL: Ask a virtual area of 0x2000 bytes > EAL: Virtual area found at 0x2140000000 (size = 0x2000) > EAL: Memseg list allocated at socket 0, page size 0x100000kB > EAL: Ask a virtual area of 0x2000000000 bytes > EAL: Virtual area found at 0x2180000000 (size = 0x2000000000) > EAL: VA reserved for memseg list at 0x2180000000, size 2000000000 > EAL: TSC frequency is ~2350000 KHz > EAL: Main lcore 0 is ready (tid=7f8ad790ec00;cpuset=[0]) > EAL: lcore 1 is ready (tid=7f8ad6907400;cpuset=[1]) > EAL: Trying to obtain current memory policy. > EAL: Setting policy MPOL_PREFERRED for socket 0 > EAL: Restoring previous memory policy: 0 > EAL: request: mp_malloc_sync > EAL: Heap on socket 0 was expanded by 1024MB > EAL: PCI device 0000:0b:00.0 on NUMA socket -1 > EAL: probe driver: 15ad:7b0 net_vmxnet3 > EAL: Expecting 'PA' IOVA mode but current mode is 'VA', not initializing > EAL: Requested device 0000:0b:00.0 cannot be used > EAL: PCI device 0000:13:00.0 on NUMA socket -1 > EAL: probe driver: 15ad:7b0 net_vmxnet3 > EAL: Expecting 'PA' IOVA mode but current mode is 'VA', not initializing > EAL: Requested device 0000:13:00.0 cannot be used > EAL: Bus (pci) probe failed. > EAL: lib.telemetry log level changed from disabled to warning > EAL: Error - exiting with code: 1 > Cause: Error: number of ports must be even > EAL: request: mp_malloc_sync > EAL: Heap on socket 0 was shrunk by 1024MB > > > > For some reason the HW ports won't setup. From what I understand > net_vmxnet3 should work with VA mode. > I enabled I/OMUU for the VM. > The weird thing even when enabled, I still have the > enable_unsafe_noiommu_mode flag on. > And because it's on the this: > > dev_iova_mode = pci_device_iova_mode(dr, dev); > > return PA mode, and it fails. > > When I disable it by modifying > /sys/module/vfio/parameters/enable_unsafe_noiommu_mode, I get another error. > The error is that it doesn't find a suitable IOMMU type: > Just putting the relevant message: > > > EAL: Heap on socket 0 was expanded by 1024MB > EAL: PCI device 0000:0b:00.0 on NUMA socket -1 > EAL: probe driver: 15ad:7b0 net_vmxnet3 > EAL: Set IOMMU type 1 (Type 1) failed, error 19 (No such device) > EAL: Set IOMMU type 7 (sPAPR) failed, error 19 (No such device) > EAL: Set IOMMU type 8 (No-IOMMU) failed, error 19 (No such device) > EAL: 0000:0b:00.0 failed to select IOMMU type > EAL: Requested device 0000:0b:00.0 cannot be used > EAL: PCI device 0000:13:00.0 on NUMA socket -1 > EAL: probe driver: 15ad:7b0 net_vmxnet3 > EAL: Set IOMMU type 1 (Type 1) failed, error 19 (No such device) > EAL: Set IOMMU type 7 (sPAPR) failed, error 19 (No such device) > EAL: Set IOMMU type 8 (No-IOMMU) failed, error 19 (No such device) > EAL: 0000:13:00.0 failed to select IOMMU type > EAL: Requested device 0000:13:00.0 cannot be used > > > I can see where it fails: > > > const struct vfio_iommu_type * > vfio_set_iommu_type(int vfio_container_fd) > { > unsigned idx; > for (idx = 0; idx < RTE_DIM(iommu_types); idx++) { > const struct vfio_iommu_type *t = &iommu_types[idx]; > > int ret = ioctl(vfio_container_fd, VFIO_SET_IOMMU, > t->type_id); > if (!ret) { > RTE_LOG(INFO, EAL, "Using IOMMU type %d (%s)\n", > t->type_id, t->name); > return t; > } > /* not an error, there may be more supported IOMMU types */ > RTE_LOG(DEBUG, EAL, "Set IOMMU type %d (%s) failed, error " > "%i (%s)\n", t->type_id, t->name, errno, > strerror(errno)); > } > /* if we didn't find a suitable IOMMU type, fail */ > return NULL; > } > > > The ioctl returns -1. > > > > I tried many things. > Enabling/disabling IOMMU. > Modifying the enable_unsafe_noiommu_mode flag. > Running in PA mode. > Any help will be much appreciated. > </blockquote></div>