1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
9 #include <rte_cycles.h>
11 #include <rte_bus_pci.h>
12 #include <rte_timer.h>
16 #define ENA_REGS_BAR 0
19 #define ENA_MAX_NUM_QUEUES 128
20 #define ENA_MIN_FRAME_LEN 64
21 #define ENA_NAME_MAX_LEN 20
22 #define ENA_PKT_MAX_BUFS 17
23 #define ENA_RX_BUF_MIN_SIZE 1400
24 #define ENA_DEFAULT_RING_SIZE 1024
26 #define ENA_MIN_MTU 128
28 #define ENA_MMIO_DISABLE_REG_READ BIT(0)
30 #define ENA_WD_TIMEOUT_SEC 3
31 #define ENA_DEVICE_KALIVE_TIMEOUT (ENA_WD_TIMEOUT_SEC * rte_get_timer_hz())
40 struct ena_tx_buffer {
41 struct rte_mbuf *mbuf;
42 unsigned int tx_descs;
43 unsigned int num_of_bufs;
44 struct ena_com_buf bufs[ENA_PKT_MAX_BUFS];
47 /* Rx buffer holds only pointer to the mbuf - may be expanded in the future */
48 struct ena_rx_buffer {
49 struct rte_mbuf *mbuf;
50 struct ena_com_buf ena_buf;
53 struct ena_calc_queue_size_ctx {
54 struct ena_com_dev_get_features_ctx *get_feat_ctx;
55 struct ena_com_dev *ena_dev;
56 u32 max_rx_queue_size;
57 u32 max_tx_queue_size;
88 enum ena_ring_type type;
89 enum ena_admin_placement_policy_type tx_mem_queue_type;
90 /* Holds the empty requests for TX/RX OOO completions */
92 uint16_t *empty_tx_reqs;
93 uint16_t *empty_rx_reqs;
97 struct ena_tx_buffer *tx_buffer_info; /* contex of tx packet */
98 struct ena_rx_buffer *rx_buffer_info; /* contex of rx packet */
100 struct rte_mbuf **rx_refill_buffer;
101 unsigned int ring_size; /* number of tx/rx_buffer_info's entries */
103 struct ena_com_io_cq *ena_com_io_cq;
104 struct ena_com_io_sq *ena_com_io_sq;
106 struct ena_com_rx_buf_info ena_bufs[ENA_PKT_MAX_BUFS]
109 struct rte_mempool *mb_pool;
110 unsigned int port_id;
112 /* Max length PMD can push to device for LLQ */
113 uint8_t tx_max_header_size;
116 uint8_t *push_buf_intermediate_buf;
118 struct ena_adapter *adapter;
122 bool disable_meta_caching;
125 struct ena_stats_rx rx_stats;
126 struct ena_stats_tx tx_stats;
129 unsigned int numa_socket_id;
130 } __rte_cache_aligned;
132 enum ena_adapter_state {
133 ENA_ADAPTER_STATE_FREE = 0,
134 ENA_ADAPTER_STATE_INIT = 1,
135 ENA_ADAPTER_STATE_RUNNING = 2,
136 ENA_ADAPTER_STATE_STOPPED = 3,
137 ENA_ADAPTER_STATE_CONFIG = 4,
138 ENA_ADAPTER_STATE_CLOSED = 5,
141 struct ena_driver_stats {
142 rte_atomic64_t ierrors;
143 rte_atomic64_t oerrors;
144 rte_atomic64_t rx_nombuf;
148 struct ena_stats_dev {
153 * Tx drops cannot be reported as the driver statistic, because DPDK
154 * rte_eth_stats structure isn't providing appropriate field for that.
155 * As a workaround it is being published as an extended statistic.
160 struct ena_offloads {
162 bool tx_csum_supported;
163 bool rx_csum_supported;
166 /* board specific private data structure */
168 /* OS defined structs */
169 struct rte_pci_device *pdev;
170 struct rte_eth_dev_data *rte_eth_dev_data;
171 struct rte_eth_dev *rte_dev;
173 struct ena_com_dev ena_dev __rte_cache_aligned;
176 struct ena_ring tx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
177 u32 max_tx_ring_size;
181 struct ena_ring rx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
182 u32 max_rx_ring_size;
185 u32 max_num_io_queues;
187 struct ena_offloads offloads;
190 char name[ENA_NAME_MAX_LEN];
191 u8 mac_addr[RTE_ETHER_ADDR_LEN];
196 struct ena_driver_stats *drv_stats;
197 enum ena_adapter_state state;
199 uint64_t tx_supported_offloads;
200 uint64_t tx_selected_offloads;
201 uint64_t rx_supported_offloads;
202 uint64_t rx_selected_offloads;
206 enum ena_regs_reset_reason_types reset_reason;
208 struct rte_timer timer_wd;
209 uint64_t timestamp_wd;
210 uint64_t keep_alive_timeout;
212 struct ena_stats_dev dev_stats;
218 bool use_large_llq_hdr;
221 #endif /* _ENA_ETHDEV_H_ */