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>
31 #include "mlx5_autoconf.h"
32 #include "mlx5_glue.h"
33 #include "mlx5_rxtx.h"
34 #include "mlx5_utils.h"
37 * DPDK callback to configure a VLAN filter.
40 * Pointer to Ethernet device structure.
47 * 0 on success, a negative errno value otherwise and rte_errno is set.
50 mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
52 struct mlx5_priv *priv = dev->data->dev_private;
55 DRV_LOG(DEBUG, "port %u %s VLAN filter ID %" PRIu16,
56 dev->data->port_id, (on ? "enable" : "disable"), vlan_id);
57 assert(priv->vlan_filter_n <= RTE_DIM(priv->vlan_filter));
58 for (i = 0; (i != priv->vlan_filter_n); ++i)
59 if (priv->vlan_filter[i] == vlan_id)
61 /* Check if there's room for another VLAN filter. */
62 if (i == RTE_DIM(priv->vlan_filter)) {
66 if (i < priv->vlan_filter_n) {
67 assert(priv->vlan_filter_n != 0);
68 /* Enabling an existing VLAN filter has no effect. */
71 /* Remove VLAN filter from list. */
72 --priv->vlan_filter_n;
73 memmove(&priv->vlan_filter[i],
74 &priv->vlan_filter[i + 1],
75 sizeof(priv->vlan_filter[i]) *
76 (priv->vlan_filter_n - i));
77 priv->vlan_filter[priv->vlan_filter_n] = 0;
79 assert(i == priv->vlan_filter_n);
80 /* Disabling an unknown VLAN filter has no effect. */
83 /* Add new VLAN filter. */
84 priv->vlan_filter[priv->vlan_filter_n] = vlan_id;
85 ++priv->vlan_filter_n;
88 if (dev->data->dev_started)
89 return mlx5_traffic_restart(dev);
94 * Callback to set/reset VLAN stripping for a specific queue.
97 * Pointer to Ethernet device structure.
101 * Enable/disable VLAN stripping.
104 mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
106 struct mlx5_priv *priv = dev->data->dev_private;
107 struct mlx5_rxq_data *rxq = (*priv->rxqs)[queue];
108 struct mlx5_rxq_ctrl *rxq_ctrl =
109 container_of(rxq, struct mlx5_rxq_ctrl, rxq);
110 struct ibv_wq_attr mod;
111 uint16_t vlan_offloads =
112 (on ? IBV_WQ_FLAGS_CVLAN_STRIPPING : 0) |
116 /* Validate hw support */
117 if (!priv->config.hw_vlan_strip) {
118 DRV_LOG(ERR, "port %u VLAN stripping is not supported",
122 /* Validate queue number */
123 if (queue >= priv->rxqs_n) {
124 DRV_LOG(ERR, "port %u VLAN stripping, invalid queue number %d",
125 dev->data->port_id, queue);
128 DRV_LOG(DEBUG, "port %u set VLAN offloads 0x%x for port %uqueue %d",
129 dev->data->port_id, vlan_offloads, rxq->port_id, queue);
130 if (!rxq_ctrl->ibv) {
131 /* Update related bits in RX queue. */
132 rxq->vlan_strip = !!on;
135 mod = (struct ibv_wq_attr){
136 .attr_mask = IBV_WQ_ATTR_FLAGS,
137 .flags_mask = IBV_WQ_FLAGS_CVLAN_STRIPPING,
138 .flags = vlan_offloads,
140 ret = mlx5_glue->modify_wq(rxq_ctrl->ibv->wq, &mod);
142 DRV_LOG(ERR, "port %u failed to modified stripping mode: %s",
143 dev->data->port_id, strerror(rte_errno));
146 /* Update related bits in RX queue. */
147 rxq->vlan_strip = !!on;
151 * Callback to set/reset VLAN offloads for a port.
154 * Pointer to Ethernet device structure.
156 * VLAN offload bit mask.
159 * 0 on success, a negative errno value otherwise and rte_errno is set.
162 mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
164 struct mlx5_priv *priv = dev->data->dev_private;
167 if (mask & ETH_VLAN_STRIP_MASK) {
168 int hw_vlan_strip = !!(dev->data->dev_conf.rxmode.offloads &
169 DEV_RX_OFFLOAD_VLAN_STRIP);
171 if (!priv->config.hw_vlan_strip) {
172 DRV_LOG(ERR, "port %u VLAN stripping is not supported",
176 /* Run on every RX queue and set/reset VLAN stripping. */
177 for (i = 0; (i != priv->rxqs_n); i++)
178 mlx5_vlan_strip_queue_set(dev, i, hw_vlan_strip);