X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_vlan.c;h=f65e416dac1ed912f28bd2d2c908fd66c1e75765;hb=711aedf1876eefef0813f5ccdd73324f5e970e47;hp=ca8057124ac221d68034f15143e94a21a9cefbd7;hpb=e9086978b2591c3777b0e03cff5f52cf4dda1e98;p=dpdk.git diff --git a/drivers/net/mlx5/mlx5_vlan.c b/drivers/net/mlx5/mlx5_vlan.c index ca8057124a..f65e416dac 100644 --- a/drivers/net/mlx5/mlx5_vlan.c +++ b/drivers/net/mlx5/mlx5_vlan.c @@ -1,56 +1,46 @@ -/*- - * BSD LICENSE - * - * Copyright 2015 6WIND S.A. - * Copyright 2015 Mellanox. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of 6WIND S.A. nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2015 6WIND S.A. + * Copyright 2015 Mellanox Technologies, Ltd */ #include #include -#include #include +#include + -/* DPDK headers don't like -pedantic. */ +/* + * Not needed by this file; included to work around the lack of off_t + * definition for mlx5dv.h with unpatched rdma-core versions. + */ +#include + +/* Verbs headers do not support -pedantic. */ #ifdef PEDANTIC -#pragma GCC diagnostic ignored "-pedantic" +#pragma GCC diagnostic ignored "-Wpedantic" #endif -#include -#include +#include +#include #ifdef PEDANTIC -#pragma GCC diagnostic error "-pedantic" +#pragma GCC diagnostic error "-Wpedantic" #endif -#include "mlx5_utils.h" +#include +#include +#include +#include + +#include +#include +#include + #include "mlx5.h" +#include "mlx5_autoconf.h" +#include "mlx5_rxtx.h" +#include "mlx5_utils.h" /** - * Configure a VLAN filter. + * DPDK callback to configure a VLAN filter. * * @param dev * Pointer to Ethernet device structure. @@ -60,97 +50,278 @@ * Toggle filter. * * @return - * 0 on success, errno value on failure. + * 0 on success, a negative errno value otherwise and rte_errno is set. */ -static int -vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) +int +mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) { - struct priv *priv = dev->data->dev_private; + struct mlx5_priv *priv = dev->data->dev_private; unsigned int i; - unsigned int r; - struct rxq *rxq; - DEBUG("%p: %s VLAN filter ID %" PRIu16, - (void *)dev, (on ? "enable" : "disable"), vlan_id); - assert(priv->vlan_filter_n <= RTE_DIM(priv->vlan_filter)); + DRV_LOG(DEBUG, "port %u %s VLAN filter ID %" PRIu16, + dev->data->port_id, (on ? "enable" : "disable"), vlan_id); + MLX5_ASSERT(priv->vlan_filter_n <= RTE_DIM(priv->vlan_filter)); for (i = 0; (i != priv->vlan_filter_n); ++i) if (priv->vlan_filter[i] == vlan_id) break; /* Check if there's room for another VLAN filter. */ - if (i == RTE_DIM(priv->vlan_filter)) - return ENOMEM; + if (i == RTE_DIM(priv->vlan_filter)) { + rte_errno = ENOMEM; + return -rte_errno; + } if (i < priv->vlan_filter_n) { - assert(priv->vlan_filter_n != 0); + MLX5_ASSERT(priv->vlan_filter_n != 0); /* Enabling an existing VLAN filter has no effect. */ if (on) - return 0; + goto out; /* Remove VLAN filter from list. */ --priv->vlan_filter_n; memmove(&priv->vlan_filter[i], &priv->vlan_filter[i + 1], - priv->vlan_filter_n - i); + sizeof(priv->vlan_filter[i]) * + (priv->vlan_filter_n - i)); priv->vlan_filter[priv->vlan_filter_n] = 0; } else { - assert(i == priv->vlan_filter_n); + MLX5_ASSERT(i == priv->vlan_filter_n); /* Disabling an unknown VLAN filter has no effect. */ if (!on) - return 0; + goto out; /* Add new VLAN filter. */ priv->vlan_filter[priv->vlan_filter_n] = vlan_id; ++priv->vlan_filter_n; } - if (!priv->started) - return 0; - /* Rehash MAC flows in all RX queues. */ - if (priv->rss) { - rxq = &priv->rxq_parent; - r = 1; - } else { - rxq = (*priv->rxqs)[0]; - r = priv->rxqs_n; - } - for (i = 0; (i < r); rxq = (*priv->rxqs)[++i]) { - int ret; - - if (rxq == NULL) - continue; - rxq_mac_addrs_del(rxq); - ret = rxq_mac_addrs_add(rxq); - if (!ret) - continue; - /* Rollback. */ - while (i != 0) { - rxq = (*priv->rxqs)[--i]; - if (rxq != NULL) - rxq_mac_addrs_del(rxq); - } - return ret; - } +out: + if (dev->data->dev_started) + return mlx5_traffic_restart(dev); return 0; } /** - * DPDK callback to configure a VLAN filter. + * Callback to set/reset VLAN stripping for a specific queue. * * @param dev * Pointer to Ethernet device structure. - * @param vlan_id - * VLAN ID to filter. + * @param queue + * RX queue index. * @param on - * Toggle filter. + * Enable/disable VLAN stripping. + */ +void +mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_rxq_data *rxq = (*priv->rxqs)[queue]; + struct mlx5_rxq_ctrl *rxq_ctrl = + container_of(rxq, struct mlx5_rxq_ctrl, rxq); + struct ibv_wq_attr mod; + uint16_t vlan_offloads = + (on ? IBV_WQ_FLAGS_CVLAN_STRIPPING : 0) | + 0; + int ret = 0; + + /* Validate hw support */ + if (!priv->config.hw_vlan_strip) { + DRV_LOG(ERR, "port %u VLAN stripping is not supported", + dev->data->port_id); + return; + } + /* Validate queue number */ + if (queue >= priv->rxqs_n) { + DRV_LOG(ERR, "port %u VLAN stripping, invalid queue number %d", + dev->data->port_id, queue); + return; + } + DRV_LOG(DEBUG, "port %u set VLAN offloads 0x%x for port %uqueue %d", + dev->data->port_id, vlan_offloads, rxq->port_id, queue); + if (!rxq_ctrl->obj) { + /* Update related bits in RX queue. */ + rxq->vlan_strip = !!on; + return; + } + if (rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_IBV) { + mod = (struct ibv_wq_attr){ + .attr_mask = IBV_WQ_ATTR_FLAGS, + .flags_mask = IBV_WQ_FLAGS_CVLAN_STRIPPING, + .flags = vlan_offloads, + }; + ret = mlx5_glue->modify_wq(rxq_ctrl->obj->wq, &mod); + } else if (rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ) { + struct mlx5_devx_modify_rq_attr rq_attr; + + memset(&rq_attr, 0, sizeof(rq_attr)); + rq_attr.rq_state = MLX5_RQC_STATE_RDY; + rq_attr.state = MLX5_RQC_STATE_RDY; + rq_attr.vsd = (on ? 0 : 1); + rq_attr.modify_bitmask = MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD; + ret = mlx5_devx_cmd_modify_rq(rxq_ctrl->obj->rq, &rq_attr); + } + if (ret) { + DRV_LOG(ERR, "port %u failed to modify object %d stripping " + "mode: %s", dev->data->port_id, + rxq_ctrl->obj->type, strerror(rte_errno)); + return; + } + /* Update related bits in RX queue. */ + rxq->vlan_strip = !!on; +} + +/** + * Callback to set/reset VLAN offloads for a port. + * + * @param dev + * Pointer to Ethernet device structure. + * @param mask + * VLAN offload bit mask. * * @return - * 0 on success, negative errno value on failure. + * 0 on success, a negative errno value otherwise and rte_errno is set. */ int -mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) +mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask) +{ + struct mlx5_priv *priv = dev->data->dev_private; + unsigned int i; + + if (mask & ETH_VLAN_STRIP_MASK) { + int hw_vlan_strip = !!(dev->data->dev_conf.rxmode.offloads & + DEV_RX_OFFLOAD_VLAN_STRIP); + + if (!priv->config.hw_vlan_strip) { + DRV_LOG(ERR, "port %u VLAN stripping is not supported", + dev->data->port_id); + return 0; + } + /* Run on every RX queue and set/reset VLAN stripping. */ + for (i = 0; (i != priv->rxqs_n); i++) + mlx5_vlan_strip_queue_set(dev, i, hw_vlan_strip); + } + return 0; +} + +/* + * Release VLAN network device, created for VM workaround. + * + * @param[in] dev + * Ethernet device object, Netlink context provider. + * @param[in] vlan + * Object representing the network device to release. + */ +void mlx5_vlan_vmwa_release(struct rte_eth_dev *dev, + struct mlx5_vf_vlan *vlan) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_nl_vlan_vmwa_context *vmwa = priv->vmwa_context; + struct mlx5_nl_vlan_dev *vlan_dev = &vmwa->vlan_dev[0]; + + MLX5_ASSERT(vlan->created); + MLX5_ASSERT(priv->vmwa_context); + if (!vlan->created || !vmwa) + return; + vlan->created = 0; + MLX5_ASSERT(vlan_dev[vlan->tag].refcnt); + if (--vlan_dev[vlan->tag].refcnt == 0 && + vlan_dev[vlan->tag].ifindex) { + mlx5_nl_vlan_vmwa_delete(vmwa, vlan_dev[vlan->tag].ifindex); + vlan_dev[vlan->tag].ifindex = 0; + } +} + +/** + * Acquire VLAN interface with specified tag for VM workaround. + * + * @param[in] dev + * Ethernet device object, Netlink context provider. + * @param[in] vlan + * Object representing the network device to acquire. + */ +void mlx5_vlan_vmwa_acquire(struct rte_eth_dev *dev, + struct mlx5_vf_vlan *vlan) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_nl_vlan_vmwa_context *vmwa = priv->vmwa_context; + struct mlx5_nl_vlan_dev *vlan_dev = &vmwa->vlan_dev[0]; + + MLX5_ASSERT(!vlan->created); + MLX5_ASSERT(priv->vmwa_context); + if (vlan->created || !vmwa) + return; + if (vlan_dev[vlan->tag].refcnt == 0) { + MLX5_ASSERT(!vlan_dev[vlan->tag].ifindex); + vlan_dev[vlan->tag].ifindex = + mlx5_nl_vlan_vmwa_create(vmwa, vmwa->vf_ifindex, + vlan->tag); + } + if (vlan_dev[vlan->tag].ifindex) { + vlan_dev[vlan->tag].refcnt++; + vlan->created = 1; + } +} + +/* + * Create per ethernet device VLAN VM workaround context + */ +struct mlx5_nl_vlan_vmwa_context * +mlx5_vlan_vmwa_init(struct rte_eth_dev *dev, uint32_t ifindex) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_dev_config *config = &priv->config; + struct mlx5_nl_vlan_vmwa_context *vmwa; + enum rte_hypervisor hv_type; + + /* Do not engage workaround over PF. */ + if (!config->vf) + return NULL; + /* Check whether there is desired virtual environment */ + hv_type = rte_hypervisor_get(); + switch (hv_type) { + case RTE_HYPERVISOR_UNKNOWN: + case RTE_HYPERVISOR_VMWARE: + /* + * The "white list" of configurations + * to engage the workaround. + */ + break; + default: + /* + * The configuration is not found in the "white list". + * We should not engage the VLAN workaround. + */ + return NULL; + } + vmwa = rte_zmalloc(__func__, sizeof(*vmwa), sizeof(uint32_t)); + if (!vmwa) { + DRV_LOG(WARNING, + "Can not allocate memory" + " for VLAN workaround context"); + return NULL; + } + vmwa->nl_socket = mlx5_nl_init(NETLINK_ROUTE); + if (vmwa->nl_socket < 0) { + DRV_LOG(WARNING, + "Can not create Netlink socket" + " for VLAN workaround context"); + rte_free(vmwa); + return NULL; + } + vmwa->vf_ifindex = ifindex; + /* Cleanup for existing VLAN devices. */ + return vmwa; +} + +/* + * Destroy per ethernet device VLAN VM workaround context + */ +void mlx5_vlan_vmwa_exit(struct mlx5_nl_vlan_vmwa_context *vmwa) { - struct priv *priv = dev->data->dev_private; - int ret; - - priv_lock(priv); - ret = vlan_filter_set(dev, vlan_id, on); - priv_unlock(priv); - assert(ret >= 0); - return -ret; + unsigned int i; + + /* Delete all remaining VLAN devices. */ + for (i = 0; i < RTE_DIM(vmwa->vlan_dev); i++) { + if (vmwa->vlan_dev[i].ifindex) + mlx5_nl_vlan_vmwa_delete(vmwa, + vmwa->vlan_dev[i].ifindex); + } + if (vmwa->nl_socket >= 0) + close(vmwa->nl_socket); + rte_free(vmwa); }