4 * Copyright 2015 6WIND S.A.
5 * Copyright 2015 Mellanox.
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39 /* DPDK headers don't like -pedantic. */
41 #pragma GCC diagnostic ignored "-pedantic"
43 #include <rte_ethdev.h>
44 #include <rte_common.h>
46 #pragma GCC diagnostic error "-pedantic"
49 #include "mlx5_utils.h"
51 #include "mlx5_autoconf.h"
54 * Configure a VLAN filter.
57 * Pointer to Ethernet device structure.
64 * 0 on success, errno value on failure.
67 vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
69 struct priv *priv = dev->data->dev_private;
72 DEBUG("%p: %s VLAN filter ID %" PRIu16,
73 (void *)dev, (on ? "enable" : "disable"), vlan_id);
74 assert(priv->vlan_filter_n <= RTE_DIM(priv->vlan_filter));
75 for (i = 0; (i != priv->vlan_filter_n); ++i)
76 if (priv->vlan_filter[i] == vlan_id)
78 /* Check if there's room for another VLAN filter. */
79 if (i == RTE_DIM(priv->vlan_filter))
81 if (i < priv->vlan_filter_n) {
82 assert(priv->vlan_filter_n != 0);
83 /* Enabling an existing VLAN filter has no effect. */
86 /* Remove VLAN filter from list. */
87 --priv->vlan_filter_n;
88 memmove(&priv->vlan_filter[i],
89 &priv->vlan_filter[i + 1],
90 priv->vlan_filter_n - i);
91 priv->vlan_filter[priv->vlan_filter_n] = 0;
93 assert(i == priv->vlan_filter_n);
94 /* Disabling an unknown VLAN filter has no effect. */
97 /* Add new VLAN filter. */
98 priv->vlan_filter[priv->vlan_filter_n] = vlan_id;
99 ++priv->vlan_filter_n;
101 /* Rehash MAC flows in all hash RX queues. */
102 priv_mac_addrs_disable(priv);
103 return priv_mac_addrs_enable(priv);
107 * DPDK callback to configure a VLAN filter.
110 * Pointer to Ethernet device structure.
117 * 0 on success, negative errno value on failure.
120 mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
122 struct priv *priv = dev->data->dev_private;
126 ret = vlan_filter_set(dev, vlan_id, on);
133 * Set/reset VLAN stripping for a specific queue.
136 * Pointer to private structure.
140 * Enable/disable VLAN stripping.
143 priv_vlan_strip_queue_set(struct priv *priv, uint16_t idx, int on)
145 struct rxq *rxq = (*priv->rxqs)[idx];
146 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
147 struct ibv_exp_wq_attr mod;
148 uint16_t vlan_offloads =
149 (on ? IBV_EXP_RECEIVE_WQ_CVLAN_STRIP : 0) |
153 DEBUG("set VLAN offloads 0x%x for port %d queue %d",
154 vlan_offloads, rxq->port_id, idx);
155 mod = (struct ibv_exp_wq_attr){
156 .attr_mask = IBV_EXP_WQ_ATTR_VLAN_OFFLOADS,
157 .vlan_offloads = vlan_offloads,
160 err = ibv_exp_modify_wq(rxq->wq, &mod);
162 ERROR("%p: failed to modified stripping mode: %s",
163 (void *)priv, strerror(err));
167 #endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
169 /* Update related bits in RX queue. */
170 rxq->vlan_strip = !!on;
174 * Callback to set/reset VLAN stripping for a specific queue.
177 * Pointer to Ethernet device structure.
181 * Enable/disable VLAN stripping.
184 mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
186 struct priv *priv = dev->data->dev_private;
188 /* Validate hw support */
189 if (!priv->hw_vlan_strip) {
190 ERROR("VLAN stripping is not supported");
194 /* Validate queue number */
195 if (queue >= priv->rxqs_n) {
196 ERROR("VLAN stripping, invalid queue number %d", queue);
201 priv_vlan_strip_queue_set(priv, queue, on);
206 * Callback to set/reset VLAN offloads for a port.
209 * Pointer to Ethernet device structure.
211 * VLAN offload bit mask.
214 mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
216 struct priv *priv = dev->data->dev_private;
219 if (mask & ETH_VLAN_STRIP_MASK) {
220 int hw_vlan_strip = dev->data->dev_conf.rxmode.hw_vlan_strip;
222 if (!priv->hw_vlan_strip) {
223 ERROR("VLAN stripping is not supported");
227 /* Run on every RX queue and set/reset VLAN stripping. */
229 for (i = 0; (i != priv->rxqs_n); i++)
230 priv_vlan_strip_queue_set(priv, i, hw_vlan_strip);