Re: [RFC 1/4] vduse: Add the struct to save the vq reconnect info

From: Maxime Coquelin
Date: Tue Jul 11 2023 - 10:22:01 EST


Hello Cindy,

On 6/28/23 08:59, Cindy Lu wrote:
From: Your Name <you@xxxxxxxxxxx>

this struct is to save the reconnect info struct, in this
struct saved the page info that alloc to save the
reconnect info

Signed-off-by: Cindy Lu <lulu@xxxxxxxxxx>
---
drivers/vdpa/vdpa_user/vduse_dev.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c
index 26b7e29cb900..f845dc46b1db 100644
--- a/drivers/vdpa/vdpa_user/vduse_dev.c
+++ b/drivers/vdpa/vdpa_user/vduse_dev.c
@@ -72,6 +72,12 @@ struct vduse_umem {
struct page **pages;
struct mm_struct *mm;
};
+struct vdpa_reconnect_info {
+ u32 index;
+ phys_addr_t addr;
+ unsigned long vaddr;
+ phys_addr_t size;
+};
struct vduse_dev {
struct vduse_vdpa *vdev;
@@ -106,6 +112,7 @@ struct vduse_dev {
u32 vq_align;
struct vduse_umem *umem;
struct mutex mem_lock;
+ struct vdpa_reconnect_info reconnect_info[64];

Why 64?
Shouldn't it be part of struct vduse_virtqueue instead?

};
struct vduse_dev_msg {