From: Vasily Philipov <vasilyf@mellanox.com>
Date: Wed, 5 Jul 2017 08:14:09 +0000 (+0300)
Subject: net/mlx4: implement isolated mode from flow API
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=ae7954ddea541cfab981fabc07e1d908cb022284;p=dpdk.git
net/mlx4: implement isolated mode from flow API
The user must request isolated mode before device configuration.
Signed-off-by: Vasily Philipov <vasilyf@mellanox.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 53a8f25230..cd828cb70b 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -582,7 +582,7 @@ dev_configure(struct rte_eth_dev *dev)
}
if (rxqs_n == priv->rxqs_n)
return 0;
- if (!rte_is_power_of_2(rxqs_n)) {
+ if (!rte_is_power_of_2(rxqs_n) && !priv->isolated) {
unsigned n_active;
n_active = rte_align32pow2(rxqs_n + 1) >> 1;
@@ -2512,6 +2512,7 @@ priv_mac_addr_del(struct priv *priv, unsigned int mac_index)
{
unsigned int i;
+ assert(!priv->isolated);
assert(mac_index < elemof(priv->mac));
if (!BITFIELD_ISSET(priv->mac_configured, mac_index))
return;
@@ -2761,12 +2762,13 @@ rxq_cleanup(struct rxq *rxq)
rxq->if_cq,
¶ms));
}
- if (rxq->qp != NULL) {
+ if (rxq->qp != NULL && !rxq->priv->isolated) {
rxq_promiscuous_disable(rxq);
rxq_allmulticast_disable(rxq);
rxq_mac_addrs_del(rxq);
- claim_zero(ibv_destroy_qp(rxq->qp));
}
+ if (rxq->qp != NULL)
+ claim_zero(ibv_destroy_qp(rxq->qp));
if (rxq->cq != NULL)
claim_zero(ibv_destroy_cq(rxq->cq));
if (rxq->channel != NULL)
@@ -3473,7 +3475,7 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq)
return 0;
}
/* Remove attached flows if RSS is disabled (no parent queue). */
- if (!priv->rss) {
+ if (!priv->rss && !priv->isolated) {
rxq_allmulticast_disable(&tmpl);
rxq_promiscuous_disable(&tmpl);
rxq_mac_addrs_del(&tmpl);
@@ -3518,7 +3520,7 @@ rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq)
return err;
};
/* Reconfigure flows. Do not care for errors. */
- if (!priv->rss) {
+ if (!priv->rss && !priv->isolated) {
rxq_mac_addrs_add(&tmpl);
if (priv->promisc)
rxq_promiscuous_enable(&tmpl);
@@ -3774,7 +3776,7 @@ skip_mr:
(void *)dev, strerror(ret));
goto error;
}
- if ((parent) || (!priv->rss)) {
+ if (!priv->isolated && (parent || !priv->rss)) {
/* Configure MAC and broadcast addresses. */
ret = rxq_mac_addrs_add(&tmpl);
if (ret) {
@@ -4003,7 +4005,10 @@ mlx4_dev_start(struct rte_eth_dev *dev)
}
DEBUG("%p: attaching configured flows to all RX queues", (void *)dev);
priv->started = 1;
- if (priv->rss) {
+ if (priv->isolated) {
+ rxq = NULL;
+ r = 1;
+ } else if (priv->rss) {
rxq = &priv->rxq_parent;
r = 1;
} else {
@@ -4092,7 +4097,10 @@ mlx4_dev_stop(struct rte_eth_dev *dev)
}
DEBUG("%p: detaching flows from all RX queues", (void *)dev);
priv->started = 0;
- if (priv->rss) {
+ if (priv->isolated) {
+ rxq = NULL;
+ r = 1;
+ } else if (priv->rss) {
rxq = &priv->rxq_parent;
r = 1;
} else {
@@ -4521,6 +4529,8 @@ mlx4_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
if (mlx4_is_secondary())
return;
priv_lock(priv);
+ if (priv->isolated)
+ goto end;
DEBUG("%p: removing MAC address from index %" PRIu32,
(void *)dev, index);
/* Last array entry is reserved for broadcast. */
@@ -4554,6 +4564,12 @@ mlx4_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
return -ENOTSUP;
(void)vmdq;
priv_lock(priv);
+ if (priv->isolated) {
+ DEBUG("%p: cannot add MAC address, "
+ "device is in isolated mode", (void *)dev);
+ re = EPERM;
+ goto end;
+ }
DEBUG("%p: adding MAC address at index %" PRIu32,
(void *)dev, index);
/* Last array entry is reserved for broadcast. */
@@ -4601,6 +4617,12 @@ mlx4_promiscuous_enable(struct rte_eth_dev *dev)
if (mlx4_is_secondary())
return;
priv_lock(priv);
+ if (priv->isolated) {
+ DEBUG("%p: cannot enable promiscuous, "
+ "device is in isolated mode", (void *)dev);
+ priv_unlock(priv);
+ return;
+ }
if (priv->promisc) {
priv_unlock(priv);
return;
@@ -4649,7 +4671,7 @@ mlx4_promiscuous_disable(struct rte_eth_dev *dev)
if (mlx4_is_secondary())
return;
priv_lock(priv);
- if (!priv->promisc) {
+ if (!priv->promisc || priv->isolated) {
priv_unlock(priv);
return;
}
@@ -4681,6 +4703,12 @@ mlx4_allmulticast_enable(struct rte_eth_dev *dev)
if (mlx4_is_secondary())
return;
priv_lock(priv);
+ if (priv->isolated) {
+ DEBUG("%p: cannot enable allmulticast, "
+ "device is in isolated mode", (void *)dev);
+ priv_unlock(priv);
+ return;
+ }
if (priv->allmulti) {
priv_unlock(priv);
return;
@@ -4729,7 +4757,7 @@ mlx4_allmulticast_disable(struct rte_eth_dev *dev)
if (mlx4_is_secondary())
return;
priv_lock(priv);
- if (!priv->allmulti) {
+ if (!priv->allmulti || priv->isolated) {
priv_unlock(priv);
return;
}
@@ -4872,7 +4900,7 @@ mlx4_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
}
/* Reenable non-RSS queue attributes. No need to check
* for errors at this stage. */
- if (!priv->rss) {
+ if (!priv->rss && !priv->isolated) {
rxq_mac_addrs_add(rxq);
if (priv->promisc)
rxq_promiscuous_enable(rxq);
@@ -5107,6 +5135,12 @@ mlx4_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
if (mlx4_is_secondary())
return -E_RTE_SECONDARY;
priv_lock(priv);
+ if (priv->isolated) {
+ DEBUG("%p: cannot set vlan filter, "
+ "device is in isolated mode", (void *)dev);
+ priv_unlock(priv);
+ return -EINVAL;
+ }
ret = vlan_filter_set(dev, vlan_id, on);
priv_unlock(priv);
assert(ret >= 0);
@@ -5119,6 +5153,7 @@ const struct rte_flow_ops mlx4_flow_ops = {
.destroy = mlx4_flow_destroy,
.flush = mlx4_flow_flush,
.query = NULL,
+ .isolate = mlx4_flow_isolate,
};
/**
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index b74fbf864a..daf53e18b6 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -335,6 +335,7 @@ struct priv {
unsigned int rss:1; /* RSS is enabled. */
unsigned int vf:1; /* This is a VF device. */
unsigned int pending_alarm:1; /* An alarm is pending. */
+ unsigned int isolated:1; /* Toggle isolated mode. */
#ifdef INLINE_RECV
unsigned int inl_recv_size; /* Inline recv size */
#endif
diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c
index edfac03852..5ad50bdc0d 100644
--- a/drivers/net/mlx4/mlx4_flow.c
+++ b/drivers/net/mlx4/mlx4_flow.c
@@ -956,6 +956,43 @@ mlx4_flow_create(struct rte_eth_dev *dev,
return flow;
}
+/**
+ * @see rte_flow_isolate()
+ *
+ * Must be done before calling dev_configure().
+ *
+ * @param dev
+ * Pointer to the ethernet device structure.
+ * @param enable
+ * Nonzero to enter isolated mode, attempt to leave it otherwise.
+ * @param[out] error
+ * Perform verbose error reporting if not NULL. PMDs initialize this
+ * structure in case of error only.
+ *
+ * @return
+ * 0 on success, a negative value on error.
+ */
+int
+mlx4_flow_isolate(struct rte_eth_dev *dev,
+ int enable,
+ struct rte_flow_error *error)
+{
+ struct priv *priv = dev->data->dev_private;
+
+ priv_lock(priv);
+ if (priv->rxqs) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL, "isolated mode must be set"
+ " before configuring the device");
+ priv_unlock(priv);
+ return -rte_errno;
+ }
+ priv->isolated = !!enable;
+ priv_unlock(priv);
+ return 0;
+}
+
/**
* Destroy a flow.
*
diff --git a/drivers/net/mlx4/mlx4_flow.h b/drivers/net/mlx4/mlx4_flow.h
index 12a293e433..4d007da8d7 100644
--- a/drivers/net/mlx4/mlx4_flow.h
+++ b/drivers/net/mlx4/mlx4_flow.h
@@ -90,6 +90,11 @@ struct mlx4_flow {
unsigned int offset; /**< Offset in bytes in the ibv_attr buffer. */
};
+int
+mlx4_flow_isolate(struct rte_eth_dev *dev,
+ int enable,
+ struct rte_flow_error *error);
+
struct mlx4_flow_action {
uint32_t drop:1; /**< Target is a drop queue. */
uint32_t queue:1; /**< Target is a receive queue. */