diff options
| author | Stefan Fritsch <sf@cvs.openbsd.org> | 2024-09-02 08:26:27 +0000 |
|---|---|---|
| committer | Stefan Fritsch <sf@cvs.openbsd.org> | 2024-09-02 08:26:27 +0000 |
| commit | faaf4baa23be358c1e101da9d93cb8f50dfdfdbe (patch) | |
| tree | b13ec688a1801bd843aa3573b31ac49651c7f930 /sys/dev/fdt | |
| parent | cbcfc69e7ac6d0e5eb6782f4b156cdd361854fe0 (diff) | |
virtio: Move interrupt setup into separate function
Put the MSIX vector into struct virtqueue and create a transport
specific function that feeds the vectors to the device. This will allow
child devices to influence which vectors are used for which virtqueues.
This will be used by multi-queue vio(4) to route corresponding rx/tx
queue interrupts to the same cpu.
The setup_intrs() function also sets the config interrupt MSIX vector
which fixes a bug that virtio_pci_set_msix_config_vector() would not
be called after a device reset.
OK bluhm@
Diffstat (limited to 'sys/dev/fdt')
| -rw-r--r-- | sys/dev/fdt/virtio_mmio.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/dev/fdt/virtio_mmio.c b/sys/dev/fdt/virtio_mmio.c index 212614f98ff..604ffcab570 100644 --- a/sys/dev/fdt/virtio_mmio.c +++ b/sys/dev/fdt/virtio_mmio.c @@ -1,4 +1,4 @@ -/* $OpenBSD: virtio_mmio.c,v 1.16 2024/08/27 19:01:11 sf Exp $ */ +/* $OpenBSD: virtio_mmio.c,v 1.17 2024/09/02 08:26:26 sf Exp $ */ /* $NetBSD: virtio.c,v 1.3 2011/11/02 23:05:52 njoly Exp $ */ /* @@ -97,6 +97,7 @@ void virtio_mmio_write_device_config_4(struct virtio_softc *, int, uint32_t); void virtio_mmio_write_device_config_8(struct virtio_softc *, int, uint64_t); uint16_t virtio_mmio_read_queue_size(struct virtio_softc *, uint16_t); void virtio_mmio_setup_queue(struct virtio_softc *, struct virtqueue *, uint64_t); +void virtio_mmio_setup_intrs(struct virtio_softc *); int virtio_mmio_get_status(struct virtio_softc *); void virtio_mmio_set_status(struct virtio_softc *, int); int virtio_mmio_negotiate_features(struct virtio_softc *, @@ -145,6 +146,7 @@ const struct virtio_ops virtio_mmio_ops = { virtio_mmio_write_device_config_8, virtio_mmio_read_queue_size, virtio_mmio_setup_queue, + virtio_mmio_setup_intrs, virtio_mmio_get_status, virtio_mmio_set_status, virtio_mmio_negotiate_features, @@ -196,6 +198,11 @@ virtio_mmio_setup_queue(struct virtio_softc *vsc, struct virtqueue *vq, } } +void +virtio_mmio_setup_intrs(struct virtio_softc *vsc) +{ +} + int virtio_mmio_get_status(struct virtio_softc *vsc) { |