Thread (59 messages) 59 messages, 4 authors, 2020-12-22

Re: [PATCH RFC 07/12] vdpa_sim: move config management outside of the core

From: Jason Wang <hidden>
Date: 2020-11-16 04:18:55
Also in: lkml

On 2020/11/13 下午9:47, Stefano Garzarella wrote:
In order to simplify the code of the vdpa_sim core, we move the
config management in each device simulator.

The device must provide the size of config structure and a callback
to update this structure called during the vdpasim_set_features().

Similarly, I suggest to do this before patch 2, then there's no need for 
the conversion of blk device.

quoted hunk ↗ jump to hunk
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
  drivers/vdpa/vdpa_sim/vdpa_sim.h     |  5 +++--
  drivers/vdpa/vdpa_sim/vdpa_sim.c     | 29 +++++-----------------------
  drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 27 ++++++++++++++++----------
  drivers/vdpa/vdpa_sim/vdpa_sim_net.c | 12 ++++++++++++
  4 files changed, 37 insertions(+), 36 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.h b/drivers/vdpa/vdpa_sim/vdpa_sim.h
index 76e642042eb0..f7e1fe0a88d3 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.h
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.h
@@ -10,8 +10,6 @@
  #include <linux/vdpa.h>
  #include <linux/vhost_iotlb.h>
  #include <uapi/linux/virtio_config.h>
-#include <uapi/linux/virtio_net.h>
-#include <uapi/linux/virtio_blk.h>
  
  #define DRV_VERSION  "0.1"
  #define DRV_AUTHOR   "Jason Wang <jasowang@redhat.com>"
@@ -42,8 +40,11 @@ struct vdpasim_virtqueue {
  
  struct vdpasim_device {
  	u64 supported_features;
+	size_t config_size;
  	u32 id;
  	int nvqs;
+
+	void (*update_config)(struct vdpasim *vdpasim);

Let's use set_config/get_config to align with virtio/vhost.

Other looks good.

Thanks


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