Messages in this thread Patch in this message | | | From | Xie Yongji <> | Subject | [PATCH v3 06/11] vduse: Support set/get_vq_affinity callbacks | Date | Tue, 28 Feb 2023 17:41:05 +0800 |
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Since we already support irq callback affinity management, let's implement the set/get_vq_affinity callbacks to make it possible for the virtio device driver to change or be aware of the affinity. This would make it possible for the virtio-blk driver to build the blk-mq queues based on the irq callback affinity.
Signed-off-by: Xie Yongji <xieyongji@bytedance.com> --- drivers/vdpa/vdpa_user/vduse_dev.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c index bde28a8692d5..e2988a1476e4 100644 --- a/drivers/vdpa/vdpa_user/vduse_dev.c +++ b/drivers/vdpa/vdpa_user/vduse_dev.c @@ -775,6 +775,23 @@ create_affinity_masks(unsigned int nvecs, struct irq_affinity *affd) return masks; } +static int vduse_vdpa_set_vq_affinity(struct vdpa_device *vdpa, u16 idx, + const struct cpumask *cpu_mask) +{ + struct vduse_dev *dev = vdpa_to_vduse(vdpa); + + cpumask_copy(&dev->vqs[idx]->irq_affinity, cpu_mask); + return 0; +} + +static const struct cpumask * +vduse_vdpa_get_vq_affinity(struct vdpa_device *vdpa, u16 idx) +{ + struct vduse_dev *dev = vdpa_to_vduse(vdpa); + + return &dev->vqs[idx]->irq_affinity; +} + static void vduse_vdpa_set_irq_affinity(struct vdpa_device *vdpa, struct irq_affinity *desc) { @@ -841,6 +858,8 @@ static const struct vdpa_config_ops vduse_vdpa_config_ops = { .get_config = vduse_vdpa_get_config, .set_config = vduse_vdpa_set_config, .get_generation = vduse_vdpa_get_generation, + .set_vq_affinity = vduse_vdpa_set_vq_affinity, + .get_vq_affinity = vduse_vdpa_get_vq_affinity, .set_irq_affinity = vduse_vdpa_set_irq_affinity, .reset = vduse_vdpa_reset, .set_map = vduse_vdpa_set_map, -- 2.20.1
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