#include <stddef.h>
#include <errno.h>
-#include <assert.h>
#include <stdint.h>
-
-/*
- * Not needed by this file; included to work around the lack of off_t
- * definition for mlx5dv.h with unpatched rdma-core versions.
- */
-#include <sys/types.h>
-
-/* Verbs headers do not support -pedantic. */
-#ifdef PEDANTIC
-#pragma GCC diagnostic ignored "-Wpedantic"
-#endif
-#include <infiniband/mlx5dv.h>
-#include <infiniband/verbs.h>
-#ifdef PEDANTIC
-#pragma GCC diagnostic error "-Wpedantic"
-#endif
+#include <unistd.h>
#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_nl.h>
+#include <mlx5_malloc.h>
#include "mlx5.h"
#include "mlx5_autoconf.h"
DRV_LOG(DEBUG, "port %u %s VLAN filter ID %" PRIu16,
dev->data->port_id, (on ? "enable" : "disable"), vlan_id);
- assert(priv->vlan_filter_n <= RTE_DIM(priv->vlan_filter));
+ 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;
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)
goto out;
(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)
goto out;
}
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 = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*vmwa), sizeof(uint32_t),
+ SOCKET_ID_ANY);
+ 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");
+ mlx5_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)
+{
+ 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);
+ mlx5_free(vmwa);
+}
git.droids-corp.org / dpdk.git / blobdiff