On 2/15/2023 4:43 AM, Tirthendu Sarkar wrote:
Truesize is now passed directly to i40e_rx_buffer_flip() instead of size
so that it does not need to recalculate truesize from size using
i40e_rx_frame_truesize() before adjusting page offset.
With these change the function can now be used during skb building and
adding frags. In later patches it will also be easier for adjusting
page offsets for multi-buffers.
Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@xxxxxxxxx>
---
drivers/net/ethernet/intel/i40e/i40e_txrx.c | 54 ++++++++-------------
1 file changed, 19 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index a7fba294a8f4..019abd7273a2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2018,6 +2018,21 @@ static bool i40e_can_reuse_rx_page(struct i40e_rx_buffer *rx_buffer,
return true;
}
+/**
+ * i40e_rx_buffer_flip - adjusted rx_buffer to point to an unused region
+ * @rx_buffer: Rx buffer to adjust
+ * @size: Size of adjustment
s/size/truesize
+ **/
+static void i40e_rx_buffer_flip(struct i40e_rx_buffer *rx_buffer,
+ unsigned int truesize)
+{
+#if (PAGE_SIZE < 8192)
+ rx_buffer->page_offset ^= truesize;
+#else
+ rx_buffer->page_offset += truesize;
+#endif
+}
+
/**
* i40e_add_rx_frag - Add contents of Rx buffer to sk_buff
* @rx_ring: rx descriptor ring to transact packets on
