In this patch the number of memory regions are increased from 8 to 128. When a vhost-user front-end such as qemu or libblkio queries the back-end such as dpdk with the message, get max number of memory slots, the back-end replies with this number 128 instead of the previously defined 8. The back-end also allocates that many slots in the memory table where regions are added/removed as requested by the vhost-user front-end. This also helps the vhost- user front-end to limit the number of memory regions when sending the set mem table message ar adding memory regions. Tested dynamic add/removal of 128 memory regions with qemu vhost-user front-end talking to dpdk test-pmd vhost-user back-end.
Signed-off-by: Pravin M Bathija <[email protected]> --- lib/vhost/vhost_user.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/vhost/vhost_user.h b/lib/vhost/vhost_user.h index 5a0e747b58..c6ad5b76d6 100644 --- a/lib/vhost/vhost_user.h +++ b/lib/vhost/vhost_user.h @@ -11,7 +11,7 @@ /* refer to hw/virtio/vhost-user.c */ -#define VHOST_MEMORY_MAX_NREGIONS 8 +#define VHOST_MEMORY_MAX_NREGIONS 128 #define VHOST_USER_NET_SUPPORTED_FEATURES \ (VIRTIO_NET_SUPPORTED_FEATURES | \ -- 2.43.0
