X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fena%2Fena_ethdev.h;h=6e24a4e5825d2e24ac15c5daa41b9bbfa650c311;hb=391b8bcc81713d0da7e68eb39a64b00e69fc3543;hp=af5eeea2804fca7b9a030af2b9619b9973b8dad3;hpb=702928afeb1fecce27d59799a76a77a077d02f27;p=dpdk.git

diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h
index af5eeea280..6e24a4e582 100644
--- a/drivers/net/ena/ena_ethdev.h
+++ b/drivers/net/ena/ena_ethdev.h
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates.
+ * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
  * All rights reserved.
  */
 
@@ -20,6 +20,8 @@
 #define ENA_MIN_FRAME_LEN	64
 #define ENA_NAME_MAX_LEN	20
 #define ENA_PKT_MAX_BUFS	17
+#define ENA_RX_BUF_MIN_SIZE	1400
+#define ENA_DEFAULT_RING_SIZE	1024
 
 #define ENA_MIN_MTU		128
 
@@ -28,6 +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 {
@@ -42,11 +57,17 @@ 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;
-	u16 rx_queue_size;
-	u16 tx_queue_size;
+	u32 max_rx_queue_size;
+	u32 max_tx_queue_size;
 	u16 max_tx_sgl_size;
 	u16 max_rx_sgl_size;
 };
@@ -87,10 +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;
@@ -111,6 +133,8 @@ struct ena_ring {
 	uint64_t offloads;
 	u16 sgl_size;
 
+	bool disable_meta_caching;
+
 	union {
 		struct ena_stats_rx rx_stats;
 		struct ena_stats_tx tx_stats;
@@ -132,13 +156,19 @@ struct ena_driver_stats {
 	rte_atomic64_t ierrors;
 	rte_atomic64_t oerrors;
 	rte_atomic64_t rx_nombuf;
-	rte_atomic64_t rx_drops;
+	u64 rx_drops;
 };
 
 struct ena_stats_dev {
 	u64 wd_expired;
 	u64 dev_start;
 	u64 dev_stop;
+	/*
+	 * Tx drops cannot be reported as the driver statistic, because DPDK
+	 * rte_eth_stats structure isn't providing appropriate field for that.
+	 * As a workaround it is being published as an extended statistic.
+	 */
+	u64 tx_drops;
 };
 
 struct ena_offloads {
@@ -158,15 +188,15 @@ struct ena_adapter {
 
 	/* TX */
 	struct ena_ring tx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
-	int tx_ring_size;
+	u32 max_tx_ring_size;
 	u16 max_tx_sgl_size;
 
 	/* RX */
 	struct ena_ring rx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
-	int rx_ring_size;
+	u32 max_rx_ring_size;
 	u16 max_rx_sgl_size;
 
-	u16 num_queues;
+	u32 max_num_io_queues;
 	u16 max_mtu;
 	struct ena_offloads offloads;
 
@@ -198,6 +228,8 @@ struct ena_adapter {
 	bool trigger_reset;
 
 	bool wd_state;
+
+	bool use_large_llq_hdr;
 };
 
 #endif /* _ENA_ETHDEV_H_ */