Commit f609d6cb authored by Stefano Garzarella's avatar Stefano Garzarella Committed by Michael S. Tsirkin
Browse files

vringh: define the stride used for translation 



Define a macro to be reused in the different parts of the code.

Useful for the next patches where we add more arrays to manage also
translations with user VA.

Suggested-by: default avatarEugenio Perez Martin <eperezma@redhat.com>
Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Message-Id: <20230404131326.44403-5-sgarzare@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent c0371782

drivers/vhost/vringh.c

+4 −2
Original line number Diff line number Diff line
@@ -1141,13 +1141,15 @@ static int iotlb_translate(const struct vringh *vrh, 
	return ret;

}



#define IOTLB_IOV_STRIDE 16



static inline int copy_from_iotlb(const struct vringh *vrh, void *dst,

				  void *src, size_t len)

{

	u64 total_translated = 0;



	while (total_translated < len) {

		struct bio_vec iov[16];

		struct bio_vec iov[IOTLB_IOV_STRIDE];

		struct iov_iter iter;

		u64 translated;

		int ret;
@@ -1180,7 +1182,7 @@ static inline int copy_to_iotlb(const struct vringh *vrh, void *dst, 
	u64 total_translated = 0;



	while (total_translated < len) {

		struct bio_vec iov[16];

		struct bio_vec iov[IOTLB_IOV_STRIDE];

		struct iov_iter iter;

		u64 translated;

		int ret;