net: ethernet: aquantia: Fixed memory allocation if AQ_CFG_RX_FRAME_MAX > 1 page.

We should allocate the number of pages based on the config parameter
AQ_CFG_RX_FRAME_MAX.
Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/aq_ring.c

@@ -270,6 +270,8 @@ int aq_ring_rx_clean(struct aq_ring_s *self, int *work_done, int budget)
 
 int aq_ring_rx_fill(struct aq_ring_s *self)
 {
+	unsigned int pages_order = fls(AQ_CFG_RX_FRAME_MAX / PAGE_SIZE +
+		(AQ_CFG_RX_FRAME_MAX % PAGE_SIZE ? 1 : 0)) - 1;
 	struct aq_ring_buff_s *buff = NULL;
 	int err = 0;
 	int i = 0;
@@ -282,7 +284,7 @@ int aq_ring_rx_fill(struct aq_ring_s *self)
 		buff->len = AQ_CFG_RX_FRAME_MAX;
 
 		buff->page = alloc_pages(GFP_ATOMIC | __GFP_COLD |
-					 __GFP_COMP, 0);
+					 __GFP_COMP, pages_order);
 		if (!buff->page) {
 			err = -ENOMEM;
 			goto err_exit;