X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fena%2Fena_ethdev.h;h=6e24a4e5825d2e24ac15c5daa41b9bbfa650c311;hb=391b8bcc81713d0da7e68eb39a64b00e69fc3543;hp=6bcca08563b3d23e44962b41f5729de87c0fd8ef;hpb=1be097dc96e05a10966db1096feadf956e7f147e;p=dpdk.git

diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h
index 6bcca08563..6e24a4e582 100644
--- 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 {
@@ -99,6 +112,7 @@ struct ena_ring {
 	};
 	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;