net: ena: cosmetic: minor code changes

1. Use BIT macro instead of shift operator for code clarity
2. Replace multiple flag assignments to a single assignment of multiple
   flags in ena_com_add_single_rx_desc()
3. Move ENA_HASH_KEY_SIZE from ena_netdev.h to ena_com.h
Signed-off-by: NArthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/amazon/ena/ena_com.c

@@ -2285,7 +2285,7 @@ int ena_com_fill_hash_function(struct ena_com_dev *ena_dev,
 	if (unlikely(rc))
 		return rc;
 
-	if (!((1 << func) & get_resp.u.flow_hash_func.supported_func)) {
+	if (!(BIT(func) & get_resp.u.flow_hash_func.supported_func)) {
 		pr_err("Flow hash function %d isn't supported\n", func);
 		return -EOPNOTSUPP;
 	}

drivers/net/ethernet/amazon/ena/ena_com.h

@@ -77,6 +77,8 @@
 #define ENA_INTR_INITIAL_RX_INTERVAL_USECS 0
 #define ENA_DEFAULT_INTR_DELAY_RESOLUTION 1
 
+#define ENA_HASH_KEY_SIZE 40
+
 #define ENA_HW_HINTS_NO_TIMEOUT	0xFFFF
 
 #define ENA_FEATURE_MAX_QUEUE_EXT_VER 1

drivers/net/ethernet/amazon/ena/ena_eth_com.c

@@ -584,10 +584,10 @@ int ena_com_add_single_rx_desc(struct ena_com_io_sq *io_sq,
 
 	desc->length = ena_buf->len;
 
-	desc->ctrl = ENA_ETH_IO_RX_DESC_FIRST_MASK;
-	desc->ctrl |= ENA_ETH_IO_RX_DESC_LAST_MASK;
-	desc->ctrl |= io_sq->phase & ENA_ETH_IO_RX_DESC_PHASE_MASK;
-	desc->ctrl |= ENA_ETH_IO_RX_DESC_COMP_REQ_MASK;
+	desc->ctrl = ENA_ETH_IO_RX_DESC_FIRST_MASK |
+		ENA_ETH_IO_RX_DESC_LAST_MASK |
+		(io_sq->phase & ENA_ETH_IO_RX_DESC_PHASE_MASK) |
+		ENA_ETH_IO_RX_DESC_COMP_REQ_MASK;
 
 	desc->req_id = req_id;
 

drivers/net/ethernet/amazon/ena/ena_netdev.h

@@ -98,8 +98,6 @@
 #define ENA_RX_RSS_TABLE_LOG_SIZE  7
 #define ENA_RX_RSS_TABLE_SIZE	(1 << ENA_RX_RSS_TABLE_LOG_SIZE)
 
-#define ENA_HASH_KEY_SIZE	40
-
 /* The number of tx packet completions that will be handled each NAPI poll
  * cycle is ring_size / ENA_TX_POLL_BUDGET_DIVIDER.
  */