1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 59c8ecc39aee..40c0d931b182 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -232,6 +232,24 @@ struct efx_rx_buffer {
 };
 
 /**
+ * struct efx_rx_page_state - Page-based rx buffer state
+ *
+ * Inserted at the start of every page allocated for receive buffers.
+ * Used to facilitate sharing dma mappings between recycled rx buffers
+ * and those passed up to the kernel.
+ *
+ * @refcnt: Number of struct efx_rx_buffer's referencing this page.
+ *      When refcnt falls to zero, the page is unmapped for dma
+ * @dma_addr: The dma address of this page.
+ */
+struct efx_rx_page_state {
+        unsigned refcnt;
+        dma_addr_t dma_addr;
+
+        unsigned int __pad[0] ____cacheline_aligned;
+};
+
+/**
  * struct efx_rx_queue - An Efx RX queue
  * @efx: The associated Efx NIC
  * @queue: DMA queue number