igc: Add set/clear large buffer helpers

While commit 13b5b7f ("igc: Add support for Tx/Rx rings")
introduced code to handle larger packet buffers, it missed the
set/clear helpers which enable/disable that feature. Introduce
the missing helpers which will be use in the next patch.

Signed-off-by: Andre Guedes <[email protected]>
Signed-off-by: Vedang Patel <[email protected]>
Signed-off-by: Jithu Joseph <[email protected]>
Reviewed-by: Maciej Fijalkowski <[email protected]>
Tested-by: Dvora Fuxbrumer <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>

drivers/net/ethernet/intel/igc/igc.h

@@ -504,6 +504,10 @@ enum igc_ring_flags_t {
 
 #define ring_uses_large_buffer(ring) \
  test_bit(IGC_RING_FLAG_RX_3K_BUFFER, &(ring)->flags)
+#define set_ring_uses_large_buffer(ring) \
+ set_bit(IGC_RING_FLAG_RX_3K_BUFFER, &(ring)->flags)
+#define clear_ring_uses_large_buffer(ring) \
+ clear_bit(IGC_RING_FLAG_RX_3K_BUFFER, &(ring)->flags)
 
 #define ring_uses_build_skb(ring) \
  test_bit(IGC_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags)