1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2012 6WIND S.A.
3 * Copyright 2012 Mellanox Technologies, Ltd
6 #ifndef RTE_PMD_MLX4_H_
7 #define RTE_PMD_MLX4_H_
11 #include <sys/queue.h>
13 /* Verbs headers do not support -pedantic. */
15 #pragma GCC diagnostic ignored "-Wpedantic"
17 #include <infiniband/verbs.h>
19 #pragma GCC diagnostic error "-Wpedantic"
22 #include <rte_ethdev_driver.h>
23 #include <rte_ether.h>
24 #include <rte_interrupts.h>
25 #include <rte_mempool.h>
26 #include <rte_rwlock.h>
30 #ifndef IBV_RX_HASH_INNER
31 /** This is not necessarily defined by supported RDMA core versions. */
32 #define IBV_RX_HASH_INNER (1ull << 31)
33 #endif /* IBV_RX_HASH_INNER */
35 /** Maximum number of simultaneous MAC addresses. This value is arbitrary. */
36 #define MLX4_MAX_MAC_ADDRESSES 128
38 /** Request send completion once in every 64 sends, might be less. */
39 #define MLX4_PMD_TX_PER_COMP_REQ 64
41 /** Maximum size for inline data. */
42 #define MLX4_PMD_MAX_INLINE 0
44 /** Fixed RSS hash key size in bytes. Cannot be modified. */
45 #define MLX4_RSS_HASH_KEY_SIZE 40
47 /** Interrupt alarm timeout value in microseconds. */
48 #define MLX4_INTR_ALARM_TIMEOUT 100000
50 /* Maximum packet headers size (L2+L3+L4) for TSO. */
51 #define MLX4_MAX_TSO_HEADER 192
53 /** Port parameter. */
54 #define MLX4_PMD_PORT_KVARG "port"
56 /** Enable extending memsegs when creating a MR. */
57 #define MLX4_MR_EXT_MEMSEG_EN_KVARG "mr_ext_memseg_en"
60 PCI_VENDOR_ID_MELLANOX = 0x15b3,
64 PCI_DEVICE_ID_MELLANOX_CONNECTX3 = 0x1003,
65 PCI_DEVICE_ID_MELLANOX_CONNECTX3VF = 0x1004,
66 PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO = 0x1007,
69 /* Request types for IPC. */
70 enum mlx4_mp_req_type {
71 MLX4_MP_REQ_VERBS_CMD_FD = 1,
72 MLX4_MP_REQ_CREATE_MR,
73 MLX4_MP_REQ_START_RXTX,
74 MLX4_MP_REQ_STOP_RXTX,
77 /* Pameters for IPC. */
78 struct mlx4_mp_param {
79 enum mlx4_mp_req_type type;
84 uintptr_t addr; /* MLX4_MP_REQ_CREATE_MR */
88 /** Request timeout for IPC. */
89 #define MLX4_MP_REQ_TIMEOUT_SEC 5
91 /** Key string for IPC. */
92 #define MLX4_MP_NAME "net_mlx4_mp"
94 /** Driver name reported to lower layers and used in log output. */
95 #define MLX4_DRIVER_NAME "net_mlx4"
104 * Type of object being allocated.
106 enum mlx4_verbs_alloc_type {
107 MLX4_VERBS_ALLOC_TYPE_NONE,
108 MLX4_VERBS_ALLOC_TYPE_TX_QUEUE,
109 MLX4_VERBS_ALLOC_TYPE_RX_QUEUE,
113 * Verbs allocator needs a context to know in the callback which kind of
114 * resources it is allocating.
116 struct mlx4_verbs_alloc_ctx {
118 enum mlx4_verbs_alloc_type type; /* Kind of object being allocated. */
119 const void *obj; /* Pointer to the DPDK object. */
122 LIST_HEAD(mlx4_dev_list, mlx4_priv);
123 LIST_HEAD(mlx4_mr_list, mlx4_mr);
125 /* Shared data between primary and secondary processes. */
126 struct mlx4_shared_data {
128 /* Global spinlock for primary and secondary processes. */
129 int init_done; /* Whether primary has done initialization. */
130 unsigned int secondary_cnt; /* Number of secondary processes init'd. */
131 struct mlx4_dev_list mem_event_cb_list;
132 rte_rwlock_t mem_event_rwlock;
135 /* Per-process data structure, not visible to other processes. */
136 struct mlx4_local_data {
137 int init_done; /* Whether a secondary has done initialization. */
140 extern struct mlx4_shared_data *mlx4_shared_data;
142 /* Per-process private structure. */
143 struct mlx4_proc_priv {
145 /* Size of UAR register table. */
147 /* Table of UAR registers for each process. */
150 #define MLX4_PROC_PRIV(port_id) \
151 ((struct mlx4_proc_priv *)rte_eth_devices[port_id].process_private)
153 /** Private data structure. */
155 LIST_ENTRY(mlx4_priv) mem_event_cb;
156 /**< Called by memory event callback. */
157 struct rte_eth_dev_data *dev_data; /* Pointer to device data. */
158 struct ibv_context *ctx; /**< Verbs context. */
159 struct ibv_device_attr device_attr; /**< Device properties. */
160 struct ibv_pd *pd; /**< Protection Domain. */
161 /* Device properties. */
162 unsigned int if_index; /**< Associated network device index */
163 uint16_t mtu; /**< Configured MTU. */
164 uint8_t port; /**< Physical port number. */
165 uint32_t started:1; /**< Device started, flows enabled. */
166 uint32_t vf:1; /**< This is a VF device. */
167 uint32_t intr_alarm:1; /**< An interrupt alarm is scheduled. */
168 uint32_t isolated:1; /**< Toggle isolated mode. */
169 uint32_t rss_init:1; /**< Common RSS context is initialized. */
170 uint32_t hw_csum:1; /**< Checksum offload is supported. */
171 uint32_t hw_csum_l2tun:1; /**< Checksum support for L2 tunnels. */
172 uint32_t hw_fcs_strip:1; /**< FCS stripping toggling is supported. */
173 uint32_t tso:1; /**< Transmit segmentation offload is supported. */
174 uint32_t mr_ext_memseg_en:1;
175 /** Whether memseg should be extended for MR creation. */
176 uint32_t tso_max_payload_sz; /**< Max supported TSO payload size. */
177 uint32_t hw_rss_max_qps; /**< Max Rx Queues supported by RSS. */
178 uint64_t hw_rss_sup; /**< Supported RSS hash fields (Verbs format). */
179 struct rte_intr_handle intr_handle; /**< Port interrupt handle. */
180 struct mlx4_drop *drop; /**< Shared resources for drop flow rules. */
182 uint32_t dev_gen; /* Generation number to flush local caches. */
183 rte_rwlock_t rwlock; /* MR Lock. */
184 struct mlx4_mr_btree cache; /* Global MR cache table. */
185 struct mlx4_mr_list mr_list; /* Registered MR list. */
186 struct mlx4_mr_list mr_free_list; /* Freed MR list. */
188 LIST_HEAD(, mlx4_rss) rss; /**< Shared targets for Rx flow rules. */
189 LIST_HEAD(, rte_flow) flows; /**< Configured flow rule handles. */
190 struct rte_ether_addr mac[MLX4_MAX_MAC_ADDRESSES];
191 /**< Configured MAC addresses. Unused entries are zeroed. */
192 uint32_t mac_mc; /**< Number of trailing multicast entries in mac[]. */
193 struct mlx4_verbs_alloc_ctx verbs_alloc_ctx;
194 /**< Context for Verbs allocator. */
197 #define PORT_ID(priv) ((priv)->dev_data->port_id)
198 #define ETH_DEV(priv) (&rte_eth_devices[PORT_ID(priv)])
202 int mlx4_get_ifname(const struct mlx4_priv *priv, char (*ifname)[IF_NAMESIZE]);
203 int mlx4_get_mac(struct mlx4_priv *priv, uint8_t (*mac)[RTE_ETHER_ADDR_LEN]);
204 int mlx4_mtu_get(struct mlx4_priv *priv, uint16_t *mtu);
205 int mlx4_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
206 int mlx4_dev_set_link_down(struct rte_eth_dev *dev);
207 int mlx4_dev_set_link_up(struct rte_eth_dev *dev);
208 void mlx4_promiscuous_enable(struct rte_eth_dev *dev);
209 void mlx4_promiscuous_disable(struct rte_eth_dev *dev);
210 void mlx4_allmulticast_enable(struct rte_eth_dev *dev);
211 void mlx4_allmulticast_disable(struct rte_eth_dev *dev);
212 void mlx4_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index);
213 int mlx4_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
214 uint32_t index, uint32_t vmdq);
215 int mlx4_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr);
216 int mlx4_set_mc_addr_list(struct rte_eth_dev *dev, struct rte_ether_addr *list,
218 int mlx4_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on);
219 int mlx4_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
220 void mlx4_stats_reset(struct rte_eth_dev *dev);
221 int mlx4_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, size_t fw_size);
222 void mlx4_dev_infos_get(struct rte_eth_dev *dev,
223 struct rte_eth_dev_info *info);
224 int mlx4_link_update(struct rte_eth_dev *dev, int wait_to_complete);
225 int mlx4_flow_ctrl_get(struct rte_eth_dev *dev,
226 struct rte_eth_fc_conf *fc_conf);
227 int mlx4_flow_ctrl_set(struct rte_eth_dev *dev,
228 struct rte_eth_fc_conf *fc_conf);
229 const uint32_t *mlx4_dev_supported_ptypes_get(struct rte_eth_dev *dev);
230 int mlx4_is_removed(struct rte_eth_dev *dev);
234 int mlx4_intr_uninstall(struct mlx4_priv *priv);
235 int mlx4_intr_install(struct mlx4_priv *priv);
236 int mlx4_rxq_intr_enable(struct mlx4_priv *priv);
237 void mlx4_rxq_intr_disable(struct mlx4_priv *priv);
238 int mlx4_rx_intr_disable(struct rte_eth_dev *dev, uint16_t idx);
239 int mlx4_rx_intr_enable(struct rte_eth_dev *dev, uint16_t idx);
242 void mlx4_mp_req_start_rxtx(struct rte_eth_dev *dev);
243 void mlx4_mp_req_stop_rxtx(struct rte_eth_dev *dev);
244 int mlx4_mp_req_mr_create(struct rte_eth_dev *dev, uintptr_t addr);
245 int mlx4_mp_req_verbs_cmd_fd(struct rte_eth_dev *dev);
246 int mlx4_mp_init_primary(void);
247 void mlx4_mp_uninit_primary(void);
248 int mlx4_mp_init_secondary(void);
249 void mlx4_mp_uninit_secondary(void);
251 #endif /* RTE_PMD_MLX4_H_ */