net: ena: rename ena_com_free_desc to make API more uniform

Rename ena_com_free_desc to ena_com_free_q_entries to match
the LLQ mode.

In non-LLQ mode, an entry in an IO ring corresponds to a
a descriptor. In LLQ mode an entry may correspond to several
descriptors (per LLQ definition).

Signed-off-by: Igor Chauskin <igorch@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.h b/drivers/net/ethernet/amazon/ena/ena_eth_com.h
index 9834b5c..8b1afd3 100644 (file)
--- a/drivers/net/ethernet/amazon/ena/ena_eth_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.h
@@ -96,7 +96,7 @@ static inline void ena_com_unmask_intr(struct ena_com_io_cq *io_cq,
        writel(intr_reg->intr_control, io_cq->unmask_reg);
 }
 
-static inline int ena_com_free_desc(struct ena_com_io_sq *io_sq)
+static inline int ena_com_free_q_entries(struct ena_com_io_sq *io_sq)
 {
        u16 tail, next_to_comp, cnt;
 
@@ -114,7 +114,7 @@ static inline bool ena_com_sq_have_enough_space(struct ena_com_io_sq *io_sq,
        int temp;
 
        if (io_sq->mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_HOST)
-               return ena_com_free_desc(io_sq) >= required_buffers;
+               return ena_com_free_q_entries(io_sq) >= required_buffers;
 
        /* This calculation doesn't need to be 100% accurate. So to reduce
         * the calculation overhead just Subtract 2 lines from the free descs
@@ -123,7 +123,7 @@ static inline bool ena_com_sq_have_enough_space(struct ena_com_io_sq *io_sq,
         */
        temp = required_buffers / io_sq->llq_info.descs_per_entry + 2;
 
-       return ena_com_free_desc(io_sq) > temp;
+       return ena_com_free_q_entries(io_sq) > temp;
 }
 
 static inline bool ena_com_meta_desc_changed(struct ena_com_io_sq *io_sq,

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 3357829..c3cbe48 100644 (file)
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1691,7 +1691,7 @@ static int ena_clean_rx_irq(struct ena_ring *rx_ring, struct napi_struct *napi,
 
        rx_ring->next_to_clean = next_to_clean;
 
-       refill_required = ena_com_free_desc(rx_ring->ena_com_io_sq);
+       refill_required = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
        refill_threshold =
                min_t(int, rx_ring->ring_size / ENA_RX_REFILL_THRESH_DIVIDER,
                      ENA_RX_REFILL_THRESH_PACKET);
@@ -3694,8 +3694,7 @@ static void check_for_empty_rx_ring(struct ena_adapter *adapter)
        for (i = 0; i < adapter->num_io_queues; i++) {
                rx_ring = &adapter->rx_ring[i];
 
-               refill_required =
-                       ena_com_free_desc(rx_ring->ena_com_io_sq);
+               refill_required = ena_com_free_q_entries(rx_ring->ena_com_io_sq);
                if (unlikely(refill_required == (rx_ring->ring_size - 1))) {
                        rx_ring->empty_rx_queue++;