prefect(page) is a common thing to be called from drivers. Add
netmem_prefetch that can be called on generic netmem. Skips the prefetch
for net_iovs.
Signed-off-by: Mina Almasry <almasrymina@xxxxxxxxxx>
---
include/net/netmem.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/net/netmem.h b/include/net/netmem.h
index 8a6e20be4b9d..923c47147aa8 100644
--- a/include/net/netmem.h
+++ b/include/net/netmem.h
@@ -171,4 +171,11 @@ static inline unsigned long netmem_get_dma_addr(netmem_ref netmem)
return __netmem_clear_lsb(netmem)->dma_addr;
}
+static inline void netmem_prefetch(netmem_ref netmem)
+{
+ if (netmem_is_net_iov(netmem))
+ return;
+
+ prefetch(netmem_to_page(netmem));
+}
#endif /* _NET_NETMEM_H */
--
2.47.0.163.g1226f6d8fa-goog
