1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2015 Mellanox Technologies, Ltd
4 */
5
6 #include <stddef.h>
7 #include <stdint.h>
8 #include <string.h>
9 #include <inttypes.h>
10 #include <errno.h>
11 #include <netinet/in.h>
12
13 #include <rte_ether.h>
14 #include <rte_ethdev_driver.h>
15 #include <rte_common.h>
16
17 #include "mlx5_defs.h"
18 #include "mlx5.h"
19 #include "mlx5_utils.h"
20 #include "mlx5_rxtx.h"
21
22 /**
23 * Remove a MAC address from the internal array.
24 *
25 * @param dev
26 * Pointer to Ethernet device structure.
27 * @param index
28 * MAC address index.
29 */
30 static void
mlx5_internal_mac_addr_remove(struct rte_eth_dev * dev,uint32_t index)31 mlx5_internal_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
32 {
33 MLX5_ASSERT(index < MLX5_MAX_MAC_ADDRESSES);
34 if (rte_is_zero_ether_addr(&dev->data->mac_addrs[index]))
35 return;
36 mlx5_os_mac_addr_remove(dev, index);
37 memset(&dev->data->mac_addrs[index], 0, sizeof(struct rte_ether_addr));
38 }
39
40 /**
41 * Adds a MAC address to the internal array.
42 *
43 * @param dev
44 * Pointer to Ethernet device structure.
45 * @param mac_addr
46 * MAC address to register.
47 * @param index
48 * MAC address index.
49 *
50 * @return
51 * 0 on success, a negative errno value otherwise and rte_errno is set.
52 */
53 static int
mlx5_internal_mac_addr_add(struct rte_eth_dev * dev,struct rte_ether_addr * mac,uint32_t index)54 mlx5_internal_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
55 uint32_t index)
56 {
57 unsigned int i;
58 int ret;
59
60 MLX5_ASSERT(index < MLX5_MAX_MAC_ADDRESSES);
61 if (rte_is_zero_ether_addr(mac)) {
62 rte_errno = EINVAL;
63 return -rte_errno;
64 }
65 /* First, make sure this address isn't already configured. */
66 for (i = 0; (i != MLX5_MAX_MAC_ADDRESSES); ++i) {
67 /* Skip this index, it's going to be reconfigured. */
68 if (i == index)
69 continue;
70 if (memcmp(&dev->data->mac_addrs[i], mac, sizeof(*mac)))
71 continue;
72 /* Address already configured elsewhere, return with error. */
73 rte_errno = EADDRINUSE;
74 return -rte_errno;
75 }
76 ret = mlx5_os_mac_addr_add(dev, mac, index);
77 if (ret)
78 return ret;
79
80 dev->data->mac_addrs[index] = *mac;
81 return 0;
82 }
83
84 /**
85 * DPDK callback to remove a MAC address.
86 *
87 * @param dev
88 * Pointer to Ethernet device structure.
89 * @param index
90 * MAC address index.
91 */
92 void
mlx5_mac_addr_remove(struct rte_eth_dev * dev,uint32_t index)93 mlx5_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
94 {
95 int ret;
96
97 if (index >= MLX5_MAX_UC_MAC_ADDRESSES)
98 return;
99 mlx5_internal_mac_addr_remove(dev, index);
100 if (!dev->data->promiscuous) {
101 ret = mlx5_traffic_restart(dev);
102 if (ret)
103 DRV_LOG(ERR, "port %u cannot restart traffic: %s",
104 dev->data->port_id, strerror(rte_errno));
105 }
106 }
107
108 /**
109 * DPDK callback to add a MAC address.
110 *
111 * @param dev
112 * Pointer to Ethernet device structure.
113 * @param mac_addr
114 * MAC address to register.
115 * @param index
116 * MAC address index.
117 * @param vmdq
118 * VMDq pool index to associate address with (ignored).
119 *
120 * @return
121 * 0 on success, a negative errno value otherwise and rte_errno is set.
122 */
123 int
mlx5_mac_addr_add(struct rte_eth_dev * dev,struct rte_ether_addr * mac,uint32_t index,uint32_t vmdq __rte_unused)124 mlx5_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
125 uint32_t index, uint32_t vmdq __rte_unused)
126 {
127 int ret;
128
129 if (index >= MLX5_MAX_UC_MAC_ADDRESSES) {
130 rte_errno = EINVAL;
131 return -rte_errno;
132 }
133 ret = mlx5_internal_mac_addr_add(dev, mac, index);
134 if (ret < 0)
135 return ret;
136 if (!dev->data->promiscuous)
137 return mlx5_traffic_restart(dev);
138 return 0;
139 }
140
141 /**
142 * DPDK callback to set primary MAC address.
143 *
144 * @param dev
145 * Pointer to Ethernet device structure.
146 * @param mac_addr
147 * MAC address to register.
148 *
149 * @return
150 * 0 on success, a negative errno value otherwise and rte_errno is set.
151 */
152 int
mlx5_mac_addr_set(struct rte_eth_dev * dev,struct rte_ether_addr * mac_addr)153 mlx5_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
154 {
155 uint16_t port_id;
156 struct mlx5_priv *priv = dev->data->dev_private;
157
158 /*
159 * Configuring the VF instead of its representor,
160 * need to skip the special case of HPF on Bluefield.
161 */
162 if (priv->representor && priv->representor_id >= 0) {
163 DRV_LOG(DEBUG, "VF represented by port %u setting primary MAC address",
164 dev->data->port_id);
165 RTE_ETH_FOREACH_DEV_SIBLING(port_id, dev->data->port_id) {
166 priv = rte_eth_devices[port_id].data->dev_private;
167 if (priv->master == 1) {
168 priv = dev->data->dev_private;
169 return mlx5_os_vf_mac_addr_modify
170 (priv,
171 mlx5_ifindex(&rte_eth_devices[port_id]),
172 mac_addr, priv->representor_id);
173 }
174 }
175 rte_errno = -ENOTSUP;
176 return rte_errno;
177 }
178
179 DRV_LOG(DEBUG, "port %u setting primary MAC address",
180 dev->data->port_id);
181 return mlx5_mac_addr_add(dev, mac_addr, 0, 0);
182 }
183
184 /**
185 * DPDK callback to set multicast addresses list.
186 *
187 * @see rte_eth_dev_set_mc_addr_list()
188 */
189 int
mlx5_set_mc_addr_list(struct rte_eth_dev * dev,struct rte_ether_addr * mc_addr_set,uint32_t nb_mc_addr)190 mlx5_set_mc_addr_list(struct rte_eth_dev *dev,
191 struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr)
192 {
193 uint32_t i;
194 int ret;
195
196 if (nb_mc_addr >= MLX5_MAX_MC_MAC_ADDRESSES) {
197 rte_errno = ENOSPC;
198 return -rte_errno;
199 }
200 for (i = MLX5_MAX_UC_MAC_ADDRESSES; i != MLX5_MAX_MAC_ADDRESSES; ++i)
201 mlx5_internal_mac_addr_remove(dev, i);
202 i = MLX5_MAX_UC_MAC_ADDRESSES;
203 while (nb_mc_addr--) {
204 ret = mlx5_internal_mac_addr_add(dev, mc_addr_set++, i++);
205 if (ret)
206 return ret;
207 }
208 if (!dev->data->promiscuous)
209 return mlx5_traffic_restart(dev);
210 return 0;
211 }
212