On Fri, Apr 26, 2024 at 05:17:52PM -0700, David Wei wrote:

On 2024-04-02 5:20 pm, Mina Almasry wrote:

quoted

@@ -69,20 +106,26 @@ net_iov_binding(const struct net_iov *niov)
  */
 typedef unsigned long __bitwise netmem_ref;
 
+static inline bool netmem_is_net_iov(const netmem_ref netmem)
+{
+#if defined(CONFIG_PAGE_POOL) && defined(CONFIG_DMA_SHARED_BUFFER)

I am guessing you added this to try and speed up the fast path? It's
overly restrictive for us since we do not need dmabuf necessarily. I
spent a bit too much time wondering why things aren't working only to
find this :(

So what else do you need?  I was assured last round that nothing but
dmabuf and potentially the huge page case (that really just is the page
provider) would get added.

---end quoted text---