On Tue, Jan 25, 2022 at 05:17:40PM +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. Which configurations did you test with this, and what were the results? Given patch 3 is broken ... > Please help review. > > 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 | 254 ++++++++++++++++++++++++++++---- > drivers/vhost/vdpa.c | 3 + > 4 files changed, 305 insertions(+), 79 deletions(-) > > -- > 2.27.0 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
