netdev - [PATCH net-next 06/14] sfc: commonise efx_sync_rx

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Date:   Tue, 30 Jun 2020 13:11:52 +0100
From:   Edward Cree <ecree@...arflare.com>
To:     <linux-net-drivers@...arflare.com>, <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>
Subject: [PATCH net-next 06/14] sfc: commonise efx_sync_rx_buffer()

The ef100 RX path will also need to DMA-sync RX buffers.

Signed-off-by: Edward Cree <ecree@...arflare.com>
---
 drivers/net/ethernet/sfc/rx.c        | 8 --------
 drivers/net/ethernet/sfc/rx_common.h | 9 +++++++++
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index c73b933a9101..59a43d586967 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -40,14 +40,6 @@
 #define EFX_RX_MAX_FRAGS DIV_ROUND_UP(EFX_MAX_FRAME_LEN(EFX_MAX_MTU), \
 				      EFX_RX_USR_BUF_SIZE)
 
-static inline void efx_sync_rx_buffer(struct efx_nic *efx,
-				      struct efx_rx_buffer *rx_buf,
-				      unsigned int len)
-{
-	dma_sync_single_for_cpu(&efx->pci_dev->dev, rx_buf->dma_addr, len,
-				DMA_FROM_DEVICE);
-}
-
 static void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue,
 				     struct efx_rx_buffer *rx_buf,
 				     int len)
diff --git a/drivers/net/ethernet/sfc/rx_common.h b/drivers/net/ethernet/sfc/rx_common.h
index 1672d74f30e2..207ccd8ba062 100644
--- a/drivers/net/ethernet/sfc/rx_common.h
+++ b/drivers/net/ethernet/sfc/rx_common.h
@@ -57,6 +57,15 @@ void efx_init_rx_buffer(struct efx_rx_queue *rx_queue,
 			unsigned int page_offset,
 			u16 flags);
 void efx_unmap_rx_buffer(struct efx_nic *efx, struct efx_rx_buffer *rx_buf);
+
+static inline void efx_sync_rx_buffer(struct efx_nic *efx,
+				      struct efx_rx_buffer *rx_buf,
+				      unsigned int len)
+{
+	dma_sync_single_for_cpu(&efx->pci_dev->dev, rx_buf->dma_addr, len,
+				DMA_FROM_DEVICE);
+}
+
 void efx_free_rx_buffers(struct efx_rx_queue *rx_queue,
 			 struct efx_rx_buffer *rx_buf,
 			 unsigned int num_bufs);