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Date: Thu, 3 Dec 2020 18:05:09 +0100 From: Stefano Garzarella <sgarzare@...hat.com> To: virtualization@...ts.linux-foundation.org Cc: Stefan Hajnoczi <stefanha@...hat.com>, "Michael S. Tsirkin" <mst@...hat.com>, Oren Duer <oren@...dia.com>, Jason Wang <jasowang@...hat.com>, Laurent Vivier <lvivier@...hat.com>, Stefano Garzarella <sgarzare@...hat.com>, linux-kernel@...r.kernel.org, Max Gurtovoy <mgurtovoy@...dia.com>, Shahaf Shuler <shahafs@...dia.com>, Eli Cohen <elic@...dia.com> Subject: [PATCH v3 17/19] vdpa_sim: make vdpasim->buffer size configurable Allow each device to specify the size of the buffer allocated in vdpa_sim. Acked-by: Jason Wang <jasowang@...hat.com> Signed-off-by: Stefano Garzarella <sgarzare@...hat.com> --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index fb714d88e77f..38b6b5e7348c 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -65,6 +65,7 @@ struct vdpasim; struct vdpasim_dev_attr { u64 supported_features; size_t config_size; + size_t buffer_size; int nvqs; u32 id; @@ -410,7 +411,7 @@ static struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr) if (!vdpasim->iommu) goto err_iommu; - vdpasim->buffer = kvmalloc(PAGE_SIZE, GFP_KERNEL); + vdpasim->buffer = kvmalloc(dev_attr->buffer_size, GFP_KERNEL); if (!vdpasim->buffer) goto err_iommu; @@ -779,6 +780,7 @@ static int __init vdpasim_dev_init(void) dev_attr.config_size = sizeof(struct virtio_net_config); dev_attr.get_config = vdpasim_net_get_config; dev_attr.work_fn = vdpasim_net_work; + dev_attr.buffer_size = PAGE_SIZE; vdpasim_dev = vdpasim_create(&dev_attr); -- 2.26.2
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