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
);