On Wed, Jan 26, 2022 at 08:49:08PM +0800, Zhu Lingshan wrote: > It has been observed that on some platforms/devices, there may > not be enough MSI vectors for virtqueues and the config change. > Under such circumstances, the interrupt sources of a device > have to share vectors/IRQs. > > This series implemented a shared IRQ feature for ifcvf. > > Please help review. Given the history, can you please report which tests were performed with this patchset? Which configs tested? Thanks? > Changes from V2: > (1) Fix misuse of nvectors(in ifcvf_alloc_vectors return value)(Michael) > (2) Fix misuse of irq = get_vq_irq() in setup irqbypass(Michael) > (3) Coding style improvements(Michael) > (4) Better naming of device shared irq/shared vq irq > > Changes from V1: > (1) Enable config interrupt when only one vector is allocated(Michael) > (2) Clean vectors/IRQs if failed to request config interrupt > since config interrupt is a must(Michael) > (3) Keep local vdpa_ops, disable irq_bypass by setting IRQ = -EINVAL > for shared IRQ case(Michael) > (4) Improvements on error messages(Michael) > (5) Squash functions implementation patches to the callers(Michael) > > Zhu Lingshan (4): > vDPA/ifcvf: implement IO read/write helpers in the header file > vDPA/ifcvf: implement device MSIX vector allocator > vhost_vdpa: don't setup irq offloading when irq_num < 0 > vDPA/ifcvf: implement shared IRQ feature > > drivers/vdpa/ifcvf/ifcvf_base.c | 67 +++----- > drivers/vdpa/ifcvf/ifcvf_base.h | 60 +++++++- > drivers/vdpa/ifcvf/ifcvf_main.c | 260 ++++++++++++++++++++++++++++---- > drivers/vhost/vdpa.c | 4 + > 4 files changed, 312 insertions(+), 79 deletions(-) > > -- > 2.27.0 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
