Commit bb105d51 authored by Jason Wang's avatar Jason Wang Committed by Michael S. Tsirkin
Browse files

vdpasim: customize allocation size 



Allow individual simulator to customize the allocation size.

Reviewed-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Acked-by: default avatarEugenio Pérez <eperezma@redhat.com>
Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
Message-Id: <20221223055548.27810-3-jasowang@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 0497f23e

drivers/vdpa/vdpa_sim/vdpa_sim.c

+4 −1
Original line number Diff line number Diff line
@@ -256,6 +256,9 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr, 
	struct device *dev;

	int i, ret = -ENOMEM;



	if (!dev_attr->alloc_size)

		return ERR_PTR(-EINVAL);



	if (config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) {

		if (config->device_features &

		    ~dev_attr->supported_features)
@@ -271,7 +274,7 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr, 


	vdpa = __vdpa_alloc_device(NULL, ops,

				   dev_attr->ngroups, dev_attr->nas,

				   sizeof(struct vdpasim),

				   dev_attr->alloc_size,

				   dev_attr->name, false);

	if (IS_ERR(vdpa)) {

		ret = PTR_ERR(vdpa);

drivers/vdpa/vdpa_sim/vdpa_sim.h

+1 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ struct vdpasim_dev_attr { 
	struct vdpa_mgmt_dev *mgmt_dev;

	const char *name;

	u64 supported_features;

	size_t alloc_size;

	size_t config_size;

	size_t buffer_size;

	int nvqs;

drivers/vdpa/vdpa_sim/vdpa_sim_blk.c

+1 −0
Original line number Diff line number Diff line
@@ -378,6 +378,7 @@ static int vdpasim_blk_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, 
	dev_attr.nvqs = VDPASIM_BLK_VQ_NUM;

	dev_attr.ngroups = VDPASIM_BLK_GROUP_NUM;

	dev_attr.nas = VDPASIM_BLK_AS_NUM;

	dev_attr.alloc_size = sizeof(struct vdpasim);

	dev_attr.config_size = sizeof(struct virtio_blk_config);

	dev_attr.get_config = vdpasim_blk_get_config;

	dev_attr.work_fn = vdpasim_blk_work;

drivers/vdpa/vdpa_sim/vdpa_sim_net.c

+1 −0
Original line number Diff line number Diff line
@@ -253,6 +253,7 @@ static int vdpasim_net_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, 
	dev_attr.nvqs = VDPASIM_NET_VQ_NUM;

	dev_attr.ngroups = VDPASIM_NET_GROUP_NUM;

	dev_attr.nas = VDPASIM_NET_AS_NUM;

	dev_attr.alloc_size = sizeof(struct vdpasim);

	dev_attr.config_size = sizeof(struct virtio_net_config);

	dev_attr.get_config = vdpasim_net_get_config;

	dev_attr.work_fn = vdpasim_net_work;