net/mlx5: rearrange creation of WQ and CQ object

[dpdk.git] / drivers / net / ena / ena_ethdev.h

diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h
index cf0b4c0..6e24a4e 100644 (file)
--- a/drivers/net/ena/ena_ethdev.h
+++ b/drivers/net/ena/ena_ethdev.h
@@ -30,6 +30,19 @@
 #define ENA_WD_TIMEOUT_SEC     3
 #define ENA_DEVICE_KALIVE_TIMEOUT (ENA_WD_TIMEOUT_SEC * rte_get_timer_hz())
 
+/* While processing submitted and completed descriptors (rx and tx path
+ * respectively) in a loop it is desired to:
+ *  - perform batch submissions while populating sumbissmion queue
+ *  - avoid blocking transmission of other packets during cleanup phase
+ * Hence the utilization ratio of 1/8 of a queue size or max value if the size
+ * of the ring is very big - like 8k Rx rings.
+ */
+#define ENA_REFILL_THRESH_DIVIDER      8
+#define ENA_REFILL_THRESH_PACKET       256
+
+#define ENA_IDX_NEXT_MASKED(idx, mask) (((idx) + 1) & (mask))
+#define ENA_IDX_ADD_MASKED(idx, n, mask) (((idx) + (n)) & (mask))
+
 struct ena_adapter;
 
 enum ena_ring_type {
@@ -44,6 +57,12 @@ struct ena_tx_buffer {
        struct ena_com_buf bufs[ENA_PKT_MAX_BUFS];
 };
 
+/* Rx buffer holds only pointer to the mbuf - may be expanded in the future */
+struct ena_rx_buffer {
+       struct rte_mbuf *mbuf;
+       struct ena_com_buf ena_buf;
+};
+
 struct ena_calc_queue_size_ctx {
        struct ena_com_dev_get_features_ctx *get_feat_ctx;
        struct ena_com_dev *ena_dev;
@@ -89,10 +108,11 @@ struct ena_ring {
 
        union {
                struct ena_tx_buffer *tx_buffer_info; /* contex of tx packet */
-               struct rte_mbuf **rx_buffer_info; /* contex of rx packet */
+               struct ena_rx_buffer *rx_buffer_info; /* contex of rx packet */
        };
        struct rte_mbuf **rx_refill_buffer;
        unsigned int ring_size; /* number of tx/rx_buffer_info's entries */
+       unsigned int size_mask;
 
        struct ena_com_io_cq *ena_com_io_cq;
        struct ena_com_io_sq *ena_com_io_sq;