-/*-
-* BSD LICENSE
-*
-* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
-* All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions
-* are met:
-*
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in
-* the documentation and/or other materials provided with the
-* distribution.
-* * Neither the name of copyright holder nor the names of its
-* contributors may be used to endorse or promote products derived
-* from this software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
+ * All rights reserved.
+ */
#ifndef _ENA_ETHDEV_H_
#define _ENA_ETHDEV_H_
+#include <rte_atomic.h>
+#include <rte_ether.h>
+#include <ethdev_driver.h>
+#include <ethdev_pci.h>
+#include <rte_cycles.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
+#include <rte_timer.h>
+#include <rte_dev.h>
+#include <rte_net.h>
#include "ena_com.h"
#define ENA_MEM_BAR 2
#define ENA_MAX_NUM_QUEUES 128
-#define ENA_DEFAULT_RING_SIZE (1024)
#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
#define ENA_MMIO_DISABLE_REG_READ BIT(0)
+#define ENA_WD_TIMEOUT_SEC 3
+#define ENA_DEVICE_KALIVE_TIMEOUT (ENA_WD_TIMEOUT_SEC * rte_get_timer_hz())
+
+#define ENA_TX_TIMEOUT (5 * rte_get_timer_hz())
+#define ENA_MONITORED_TX_QUEUES 3
+#define ENA_DEFAULT_MISSING_COMP 256U
+
+/* 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))
+
+#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
+
+#define ENA_ALL_RSS_HF (RTE_ETH_RSS_NONFRAG_IPV4_TCP | RTE_ETH_RSS_NONFRAG_IPV4_UDP | \
+ RTE_ETH_RSS_NONFRAG_IPV6_TCP | RTE_ETH_RSS_NONFRAG_IPV6_UDP)
+
+#define ENA_IO_TXQ_IDX(q) (2 * (q))
+#define ENA_IO_RXQ_IDX(q) (2 * (q) + 1)
+/* Reversed version of ENA_IO_RXQ_IDX */
+#define ENA_IO_RXQ_IDX_REV(q) (((q) - 1) / 2)
+
+extern struct ena_shared_data *ena_shared_data;
+
struct ena_adapter;
enum ena_ring_type {
struct rte_mbuf *mbuf;
unsigned int tx_descs;
unsigned int num_of_bufs;
+ uint64_t timestamp;
+ bool print_once;
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;
+ u32 max_rx_queue_size;
+ u32 max_tx_queue_size;
+ u16 max_tx_sgl_size;
+ u16 max_rx_sgl_size;
+};
+
+struct ena_stats_tx {
+ u64 cnt;
+ u64 bytes;
+ u64 prepare_ctx_err;
+ u64 linearize;
+ u64 linearize_failed;
+ u64 tx_poll;
+ u64 doorbells;
+ u64 bad_req_id;
+ u64 available_desc;
+ u64 missed_tx;
+};
+
+struct ena_stats_rx {
+ u64 cnt;
+ u64 bytes;
+ u64 refill_partial;
+ u64 bad_csum;
+ u64 mbuf_alloc_fail;
+ u64 bad_desc_num;
+ u64 bad_req_id;
+};
+
struct ena_ring {
u16 next_to_use;
u16 next_to_clean;
+ uint64_t last_cleanup_ticks;
enum ena_ring_type type;
enum ena_admin_placement_policy_type tx_mem_queue_type;
- /* Holds the empty requests for TX OOO completions */
- uint16_t *empty_tx_reqs;
+
+ /* Indicate there are Tx packets pushed to the device and wait for db */
+ bool pkts_without_db;
+
+ /* Holds the empty requests for TX/RX OOO completions */
+ union {
+ uint16_t *empty_tx_reqs;
+ uint16_t *empty_rx_reqs;
+ };
+
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;
+ union {
+ uint16_t tx_free_thresh;
+ uint16_t rx_free_thresh;
+ };
+
struct ena_com_rx_buf_info ena_bufs[ENA_PKT_MAX_BUFS]
__rte_cache_aligned;
/* Max length PMD can push to device for LLQ */
uint8_t tx_max_header_size;
int configured;
+
+ uint8_t *push_buf_intermediate_buf;
+
struct ena_adapter *adapter;
+ uint64_t offloads;
+ u16 sgl_size;
+
+ bool disable_meta_caching;
+
+ union {
+ struct ena_stats_rx rx_stats;
+ struct ena_stats_tx tx_stats;
+ };
+
+ unsigned int numa_socket_id;
+
+ uint32_t missing_tx_completion_threshold;
} __rte_cache_aligned;
enum ena_adapter_state {
ENA_ADAPTER_STATE_FREE = 0,
ENA_ADAPTER_STATE_INIT = 1,
- ENA_ADAPTER_STATE_RUNNING = 2,
+ ENA_ADAPTER_STATE_RUNNING = 2,
ENA_ADAPTER_STATE_STOPPED = 3,
ENA_ADAPTER_STATE_CONFIG = 4,
+ ENA_ADAPTER_STATE_CLOSED = 5,
};
struct ena_driver_stats {
rte_atomic64_t ierrors;
rte_atomic64_t oerrors;
rte_atomic64_t rx_nombuf;
+ u64 rx_drops;
};
struct ena_stats_dev {
- u64 tx_timeout;
- u64 io_suspend;
- u64 io_resume;
u64 wd_expired;
- u64 interface_up;
- u64 interface_down;
- u64 admin_q_pause;
+ 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_stats_tx {
- u64 cnt;
- u64 bytes;
- u64 queue_stop;
- u64 prepare_ctx_err;
- u64 queue_wakeup;
- u64 dma_mapping_err;
- u64 linearize;
- u64 linearize_failed;
- u64 tx_poll;
- u64 doorbells;
- u64 missing_tx_comp;
- u64 bad_req_id;
+struct ena_stats_eni {
+ /*
+ * The number of packets shaped due to inbound aggregate BW
+ * allowance being exceeded
+ */
+ uint64_t bw_in_allowance_exceeded;
+ /*
+ * The number of packets shaped due to outbound aggregate BW
+ * allowance being exceeded
+ */
+ uint64_t bw_out_allowance_exceeded;
+ /* The number of packets shaped due to PPS allowance being exceeded */
+ uint64_t pps_allowance_exceeded;
+ /*
+ * The number of packets shaped due to connection tracking
+ * allowance being exceeded and leading to failure in establishment
+ * of new connections
+ */
+ uint64_t conntrack_allowance_exceeded;
+ /*
+ * The number of packets shaped due to linklocal packet rate
+ * allowance being exceeded
+ */
+ uint64_t linklocal_allowance_exceeded;
};
-struct ena_stats_rx {
- u64 cnt;
- u64 bytes;
- u64 refil_partial;
- u64 bad_csum;
- u64 page_alloc_fail;
- u64 skb_alloc_fail;
- u64 dma_mapping_err;
- u64 bad_desc_num;
- u64 small_copy_len_pkt;
+struct ena_offloads {
+ uint32_t tx_offloads;
+ uint32_t rx_offloads;
};
/* board specific private data structure */
struct ena_adapter {
/* OS defined structs */
- struct rte_pci_device *pdev;
- struct rte_eth_dev_data *rte_eth_dev_data;
- struct rte_eth_dev *rte_dev;
+ struct rte_eth_dev_data *edev_data;
struct ena_com_dev ena_dev __rte_cache_aligned;
/* 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;
- u8 tso4_supported;
+ struct ena_offloads offloads;
+
+ /* The admin queue isn't protected by the lock and is used to
+ * retrieve statistics from the device. As there is no guarantee that
+ * application won't try to get statistics from multiple threads, it is
+ * safer to lock the queue to avoid admin queue failure.
+ */
+ rte_spinlock_t admin_lock;
int id_number;
char name[ENA_NAME_MAX_LEN];
- u8 mac_addr[ETHER_ADDR_LEN];
+ u8 mac_addr[RTE_ETHER_ADDR_LEN];
void *regs;
void *dev_mem_base;
struct ena_driver_stats *drv_stats;
enum ena_adapter_state state;
+ uint64_t tx_supported_offloads;
+ uint64_t tx_selected_offloads;
+ uint64_t rx_supported_offloads;
+ uint64_t rx_selected_offloads;
+
+ bool link_status;
+
+ enum ena_regs_reset_reason_types reset_reason;
+
+ struct rte_timer timer_wd;
+ uint64_t timestamp_wd;
+ uint64_t keep_alive_timeout;
+
+ struct ena_stats_dev dev_stats;
+ struct ena_stats_eni eni_stats;
+
+ bool trigger_reset;
+
+ bool wd_state;
+
+ bool use_large_llq_hdr;
+
+ uint32_t last_tx_comp_qid;
+ uint64_t missing_tx_completion_to;
+ uint64_t missing_tx_completion_budget;
+ uint64_t tx_cleanup_stall_delay;
};
+int ena_rss_reta_update(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size);
+int ena_rss_reta_query(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size);
+int ena_rss_hash_update(struct rte_eth_dev *dev,
+ struct rte_eth_rss_conf *rss_conf);
+int ena_rss_hash_conf_get(struct rte_eth_dev *dev,
+ struct rte_eth_rss_conf *rss_conf);
+int ena_rss_configure(struct ena_adapter *adapter);
+
#endif /* _ENA_ETHDEV_H_ */
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