4 * Copyright 2015 6WIND S.A.
5 * Copyright 2015 Mellanox.
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40 * Not needed by this file; included to work around the lack of off_t
41 * definition for mlx5dv.h with unpatched rdma-core versions.
43 #include <sys/types.h>
45 /* DPDK headers don't like -pedantic. */
47 #pragma GCC diagnostic ignored "-Wpedantic"
49 #include <rte_ethdev.h>
50 #include <rte_common.h>
52 #pragma GCC diagnostic error "-Wpedantic"
55 #include "mlx5_utils.h"
57 #include "mlx5_autoconf.h"
60 * Configure a VLAN filter.
63 * Pointer to Ethernet device structure.
70 * 0 on success, errno value on failure.
73 vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
75 struct priv *priv = dev->data->dev_private;
78 DEBUG("%p: %s VLAN filter ID %" PRIu16,
79 (void *)dev, (on ? "enable" : "disable"), vlan_id);
80 assert(priv->vlan_filter_n <= RTE_DIM(priv->vlan_filter));
81 for (i = 0; (i != priv->vlan_filter_n); ++i)
82 if (priv->vlan_filter[i] == vlan_id)
84 /* Check if there's room for another VLAN filter. */
85 if (i == RTE_DIM(priv->vlan_filter))
87 if (i < priv->vlan_filter_n) {
88 assert(priv->vlan_filter_n != 0);
89 /* Enabling an existing VLAN filter has no effect. */
92 /* Remove VLAN filter from list. */
93 --priv->vlan_filter_n;
94 memmove(&priv->vlan_filter[i],
95 &priv->vlan_filter[i + 1],
96 sizeof(priv->vlan_filter[i]) *
97 (priv->vlan_filter_n - i));
98 priv->vlan_filter[priv->vlan_filter_n] = 0;
100 assert(i == priv->vlan_filter_n);
101 /* Disabling an unknown VLAN filter has no effect. */
104 /* Add new VLAN filter. */
105 priv->vlan_filter[priv->vlan_filter_n] = vlan_id;
106 ++priv->vlan_filter_n;
108 /* Rehash flows in all hash RX queues. */
109 priv_mac_addrs_disable(priv);
110 priv_special_flow_disable_all(priv);
111 return priv_rehash_flows(priv);
115 * DPDK callback to configure a VLAN filter.
118 * Pointer to Ethernet device structure.
125 * 0 on success, negative errno value on failure.
128 mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
130 struct priv *priv = dev->data->dev_private;
134 ret = vlan_filter_set(dev, vlan_id, on);
141 * Set/reset VLAN stripping for a specific queue.
144 * Pointer to private structure.
148 * Enable/disable VLAN stripping.
151 priv_vlan_strip_queue_set(struct priv *priv, uint16_t idx, int on)
153 struct rxq *rxq = (*priv->rxqs)[idx];
154 struct rxq_ctrl *rxq_ctrl = container_of(rxq, struct rxq_ctrl, rxq);
155 struct ibv_exp_wq_attr mod;
156 uint16_t vlan_offloads =
157 (on ? IBV_EXP_RECEIVE_WQ_CVLAN_STRIP : 0) |
161 DEBUG("set VLAN offloads 0x%x for port %d queue %d",
162 vlan_offloads, rxq->port_id, idx);
163 mod = (struct ibv_exp_wq_attr){
164 .attr_mask = IBV_EXP_WQ_ATTR_VLAN_OFFLOADS,
165 .vlan_offloads = vlan_offloads,
168 err = ibv_exp_modify_wq(rxq_ctrl->wq, &mod);
170 ERROR("%p: failed to modified stripping mode: %s",
171 (void *)priv, strerror(err));
175 /* Update related bits in RX queue. */
176 rxq->vlan_strip = !!on;
180 * Callback to set/reset VLAN stripping for a specific queue.
183 * Pointer to Ethernet device structure.
187 * Enable/disable VLAN stripping.
190 mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
192 struct priv *priv = dev->data->dev_private;
194 /* Validate hw support */
195 if (!priv->hw_vlan_strip) {
196 ERROR("VLAN stripping is not supported");
200 /* Validate queue number */
201 if (queue >= priv->rxqs_n) {
202 ERROR("VLAN stripping, invalid queue number %d", queue);
207 priv_vlan_strip_queue_set(priv, queue, on);
212 * Callback to set/reset VLAN offloads for a port.
215 * Pointer to Ethernet device structure.
217 * VLAN offload bit mask.
220 mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
222 struct priv *priv = dev->data->dev_private;
225 if (mask & ETH_VLAN_STRIP_MASK) {
226 int hw_vlan_strip = !!dev->data->dev_conf.rxmode.hw_vlan_strip;
228 if (!priv->hw_vlan_strip) {
229 ERROR("VLAN stripping is not supported");
233 /* Run on every RX queue and set/reset VLAN stripping. */
235 for (i = 0; (i != priv->rxqs_n); i++)
236 priv_vlan_strip_queue_set(priv, i, hw_vlan_strip);