net/mlx5: separate Netlink command interface
[dpdk.git] / drivers / net / mlx5 / mlx5_vlan.c
index c91d08b..fb52d8f 100644 (file)
@@ -7,6 +7,8 @@
 #include <errno.h>
 #include <assert.h>
 #include <stdint.h>
+#include <unistd.h>
+
 
 /*
  * Not needed by this file; included to work around the lack of off_t
 
 #include <rte_ethdev_driver.h>
 #include <rte_common.h>
+#include <rte_malloc.h>
+#include <rte_hypervisor.h>
+
+#include <mlx5_glue.h>
+#include <mlx5_devx_cmds.h>
 
-#include "mlx5_utils.h"
 #include "mlx5.h"
 #include "mlx5_autoconf.h"
-#include "mlx5_glue.h"
+#include "mlx5_rxtx.h"
+#include "mlx5_nl.h"
+#include "mlx5_utils.h"
 
 /**
  * DPDK callback to configure a VLAN filter.
@@ -48,7 +56,7 @@
 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;
 
        DRV_LOG(DEBUG, "port %u %s VLAN filter ID %" PRIu16,
@@ -102,7 +110,7 @@ out:
 void
 mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
 {
-       struct priv *priv = dev->data->dev_private;
+       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);
@@ -110,7 +118,7 @@ mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
        uint16_t vlan_offloads =
                (on ? IBV_WQ_FLAGS_CVLAN_STRIPPING : 0) |
                0;
-       int ret;
+       int ret = 0;
 
        /* Validate hw support */
        if (!priv->config.hw_vlan_strip) {
@@ -126,20 +134,32 @@ mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
        }
        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->ibv) {
+       if (!rxq_ctrl->obj) {
                /* Update related bits in RX queue. */
                rxq->vlan_strip = !!on;
                return;
        }
-       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->ibv->wq, &mod);
+       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 modified stripping mode: %s",
-                       dev->data->port_id, strerror(rte_errno));
+               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. */
@@ -160,7 +180,7 @@ mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
 int
 mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
-       struct priv *priv = dev->data->dev_private;
+       struct mlx5_priv *priv = dev->data->dev_private;
        unsigned int i;
 
        if (mask & ETH_VLAN_STRIP_MASK) {
@@ -178,3 +198,132 @@ mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
        }
        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];
+
+       assert(vlan->created);
+       assert(priv->vmwa_context);
+       if (!vlan->created || !vmwa)
+               return;
+       vlan->created = 0;
+       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];
+
+       assert(!vlan->created);
+       assert(priv->vmwa_context);
+       if (vlan->created || !vmwa)
+               return;
+       if (vlan_dev[vlan->tag].refcnt == 0) {
+               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->nl_sn = random();
+       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)
+{
+       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);
+}