1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2015 Mellanox Technologies, Ltd
12 * Not needed by this file; included to work around the lack of off_t
13 * definition for mlx5dv.h with unpatched rdma-core versions.
15 #include <sys/types.h>
17 /* Verbs headers do not support -pedantic. */
19 #pragma GCC diagnostic ignored "-Wpedantic"
21 #include <infiniband/mlx5dv.h>
22 #include <infiniband/verbs.h>
24 #pragma GCC diagnostic error "-Wpedantic"
27 #include <rte_ethdev_driver.h>
28 #include <rte_common.h>
30 #include "mlx5_utils.h"
32 #include "mlx5_autoconf.h"
33 #include "mlx5_glue.h"
36 * DPDK callback to configure a VLAN filter.
39 * Pointer to Ethernet device structure.
46 * 0 on success, a negative errno value otherwise and rte_errno is set.
49 mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
51 struct priv *priv = dev->data->dev_private;
54 DRV_LOG(DEBUG, "port %u %s VLAN filter ID %" PRIu16,
55 dev->data->port_id, (on ? "enable" : "disable"), vlan_id);
56 assert(priv->vlan_filter_n <= RTE_DIM(priv->vlan_filter));
57 for (i = 0; (i != priv->vlan_filter_n); ++i)
58 if (priv->vlan_filter[i] == vlan_id)
60 /* Check if there's room for another VLAN filter. */
61 if (i == RTE_DIM(priv->vlan_filter)) {
65 if (i < priv->vlan_filter_n) {
66 assert(priv->vlan_filter_n != 0);
67 /* Enabling an existing VLAN filter has no effect. */
70 /* Remove VLAN filter from list. */
71 --priv->vlan_filter_n;
72 memmove(&priv->vlan_filter[i],
73 &priv->vlan_filter[i + 1],
74 sizeof(priv->vlan_filter[i]) *
75 (priv->vlan_filter_n - i));
76 priv->vlan_filter[priv->vlan_filter_n] = 0;
78 assert(i == priv->vlan_filter_n);
79 /* Disabling an unknown VLAN filter has no effect. */
82 /* Add new VLAN filter. */
83 priv->vlan_filter[priv->vlan_filter_n] = vlan_id;
84 ++priv->vlan_filter_n;
87 if (dev->data->dev_started)
88 return mlx5_traffic_restart(dev);
93 * Callback to set/reset VLAN stripping for a specific queue.
96 * Pointer to Ethernet device structure.
100 * Enable/disable VLAN stripping.
103 mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
105 struct priv *priv = dev->data->dev_private;
106 struct mlx5_rxq_data *rxq = (*priv->rxqs)[queue];
107 struct mlx5_rxq_ctrl *rxq_ctrl =
108 container_of(rxq, struct mlx5_rxq_ctrl, rxq);
109 struct ibv_wq_attr mod;
110 uint16_t vlan_offloads =
111 (on ? IBV_WQ_FLAGS_CVLAN_STRIPPING : 0) |
115 /* Validate hw support */
116 if (!priv->config.hw_vlan_strip) {
117 DRV_LOG(ERR, "port %u VLAN stripping is not supported",
121 /* Validate queue number */
122 if (queue >= priv->rxqs_n) {
123 DRV_LOG(ERR, "port %u VLAN stripping, invalid queue number %d",
124 dev->data->port_id, queue);
127 DRV_LOG(DEBUG, "port %u set VLAN offloads 0x%x for port %uqueue %d",
128 dev->data->port_id, vlan_offloads, rxq->port_id, queue);
129 if (!rxq_ctrl->ibv) {
130 /* Update related bits in RX queue. */
131 rxq->vlan_strip = !!on;
134 mod = (struct ibv_wq_attr){
135 .attr_mask = IBV_WQ_ATTR_FLAGS,
136 .flags_mask = IBV_WQ_FLAGS_CVLAN_STRIPPING,
137 .flags = vlan_offloads,
139 ret = mlx5_glue->modify_wq(rxq_ctrl->ibv->wq, &mod);
141 DRV_LOG(ERR, "port %u failed to modified stripping mode: %s",
142 dev->data->port_id, strerror(rte_errno));
145 /* Update related bits in RX queue. */
146 rxq->vlan_strip = !!on;
150 * Callback to set/reset VLAN offloads for a port.
153 * Pointer to Ethernet device structure.
155 * VLAN offload bit mask.
158 * 0 on success, a negative errno value otherwise and rte_errno is set.
161 mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
163 struct priv *priv = dev->data->dev_private;
166 if (mask & ETH_VLAN_STRIP_MASK) {
167 int hw_vlan_strip = !!(dev->data->dev_conf.rxmode.offloads &
168 DEV_RX_OFFLOAD_VLAN_STRIP);
170 if (!priv->config.hw_vlan_strip) {
171 DRV_LOG(ERR, "port %u VLAN stripping is not supported",
175 /* Run on every RX queue and set/reset VLAN stripping. */
176 for (i = 0; (i != priv->rxqs_n); i++)
177 mlx5_vlan_strip_queue_set(dev, i, hw_vlan_strip);