From: Yuxue Liu Date: Tue, 3 Dec 2024 02:37:43 +0000 (+0800) Subject: vdpa/vp_vdpa: implement kick_vq_with_data callback X-Git-Tag: v6.14-rc1~72^2~20 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33bb2d16063bd105acd99075a6161761ab510e33;p=thirdparty%2Fkernel%2Fstable.git vdpa/vp_vdpa: implement kick_vq_with_data callback Implement the kick_vq_with_data vDPA callback. On kick, we pass the next available data to the hardware by writing it in the kick offset. Signed-off-by: Yuxue Liu Message-Id: <20241203023743.1757-1-yuxue.liu@jaguarmicro.com> Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang --- diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c index 16380764275ea..8787407f75b06 100644 --- a/drivers/vdpa/virtio_pci/vp_vdpa.c +++ b/drivers/vdpa/virtio_pci/vp_vdpa.c @@ -367,6 +367,14 @@ static void vp_vdpa_kick_vq(struct vdpa_device *vdpa, u16 qid) vp_iowrite16(qid, vp_vdpa->vring[qid].notify); } +static void vp_vdpa_kick_vq_with_data(struct vdpa_device *vdpa, u32 data) +{ + struct vp_vdpa *vp_vdpa = vdpa_to_vp(vdpa); + u16 qid = data & 0xFFFF; + + vp_iowrite32(data, vp_vdpa->vring[qid].notify); +} + static u32 vp_vdpa_get_generation(struct vdpa_device *vdpa) { struct virtio_pci_modern_device *mdev = vdpa_to_mdev(vdpa); @@ -472,6 +480,7 @@ static const struct vdpa_config_ops vp_vdpa_ops = { .get_vq_size = vp_vdpa_get_vq_size, .set_vq_address = vp_vdpa_set_vq_address, .kick_vq = vp_vdpa_kick_vq, + .kick_vq_with_data = vp_vdpa_kick_vq_with_data, .get_generation = vp_vdpa_get_generation, .get_device_id = vp_vdpa_get_device_id, .get_vendor_id = vp_vdpa_get_vendor_id,