X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_vlan.c;h=f65e416dac1ed912f28bd2d2c908fd66c1e75765;hb=2823b082f93c94c5c97fa572b5b84b637e088668;hp=feac0f150fdb75f814a3daf42084d062c687c7ac;hpb=543e218fa58dcfb9b342142b9aeb3bd7f547ab86;p=dpdk.git

diff --git a/drivers/net/mlx5/mlx5_vlan.c b/drivers/net/mlx5/mlx5_vlan.c
index feac0f150f..f65e416dac 100644
--- a/drivers/net/mlx5/mlx5_vlan.c
+++ b/drivers/net/mlx5/mlx5_vlan.c
@@ -5,8 +5,9 @@
 
 #include <stddef.h>
 #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
@@ -26,11 +27,15 @@
 
 #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.h"
 #include "mlx5_autoconf.h"
-#include "mlx5_glue.h"
-#include "mlx5_devx_cmds.h"
 #include "mlx5_rxtx.h"
 #include "mlx5_utils.h"
 
@@ -55,7 +60,7 @@ mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 
 	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;
@@ -65,7 +70,7 @@ mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 		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;
@@ -77,7 +82,7 @@ mlx5_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 			(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;
@@ -192,3 +197,131 @@ 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];
+
+	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)
+{
+	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);
+}