The user must request isolated mode before device configuration,
the default RSS ring isn't created in this case.
Signed-off-by: Vasily Philipov <vasi...@mellanox.com>
---
drivers/net/mlx4/mlx4.c | 58 +++++++++++++++++++++++++++++++++++---------
drivers/net/mlx4/mlx4.h | 1 +
drivers/net/mlx4/mlx4_flow.c | 39 +++++++++++++++++++++++++++++
drivers/net/mlx4/mlx4_flow.h | 5 ++++
4 files changed, 92 insertions(+), 11 deletions(-)
diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 2fdc889..9cf2064 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -650,7 +650,7 @@ void priv_unlock(struct priv *priv)
}
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;
@@ -694,6 +694,8 @@ void priv_unlock(struct priv *priv)
priv->rss = 1;
tmp = priv->rxqs_n;
priv->rxqs_n = rxqs_n;
+ if (priv->isolated)
+ return 0;
ret = priv_create_parent(priv, NULL, priv->rxqs_n);
if (!ret)
return 0;
@@ -2580,6 +2582,7 @@ struct txq_mp2mr_mbuf_check_data {
{
unsigned int i;
+ assert(!priv->isolated);
assert(mac_index < elemof(priv->mac));
if (!BITFIELD_ISSET(priv->mac_configured, mac_index))
return;
@@ -2829,7 +2832,7 @@ struct txq_mp2mr_mbuf_check_data {
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);
@@ -3530,7 +3533,7 @@ struct txq_mp2mr_mbuf_check_data {
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);
@@ -3575,7 +3578,7 @@ struct txq_mp2mr_mbuf_check_data {
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);
@@ -3734,7 +3737,7 @@ struct txq_mp2mr_mbuf_check_data {
strerror(ret));
return ret;
}
- if (parent || !priv->rss) {
+ if (!priv->isolated && (parent || !priv->rss)) {
/* Configure MAC and broadcast addresses. */
ret = rxq_mac_addrs_add(rxq);
if (ret) {
@@ -4013,7 +4016,7 @@ struct txq_mp2mr_mbuf_check_data {
return -ENOMEM;
}
}
- if (priv->rss) {
+ if (priv->rss && !priv->isolated) {
/* The list consists of the single default one. */
parent = LIST_FIRST(&priv->parents);
if (idx >= rte_align32pow2(priv->rxqs_n + 1) >> 1)
@@ -4109,7 +4112,10 @@ struct txq_mp2mr_mbuf_check_data {
}
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 = LIST_FIRST(&priv->parents);
r = 1;
} else {
@@ -4192,7 +4198,10 @@ struct txq_mp2mr_mbuf_check_data {
}
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 = LIST_FIRST(&priv->parents);
r = 1;
} else {
@@ -4620,6 +4629,8 @@ struct txq_mp2mr_mbuf_check_data {
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. */
@@ -4653,6 +4664,12 @@ struct txq_mp2mr_mbuf_check_data {
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. */
@@ -4700,6 +4717,12 @@ struct txq_mp2mr_mbuf_check_data {
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;
@@ -4748,7 +4771,7 @@ struct txq_mp2mr_mbuf_check_data {
if (mlx4_is_secondary())
return;
priv_lock(priv);
- if (!priv->promisc) {
+ if (!priv->promisc || priv->isolated) {
priv_unlock(priv);
return;
}
@@ -4780,6 +4803,12 @@ struct txq_mp2mr_mbuf_check_data {
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;
@@ -4832,7 +4861,7 @@ struct txq_mp2mr_mbuf_check_data {
priv_unlock(priv);
return;
}
- if (priv->rss) {
+ if (priv->rss && !priv->isolated) {
rxq_allmulticast_disable(LIST_FIRST(&priv->parents));
goto end;
}
@@ -4971,7 +5000,7 @@ struct txq_mp2mr_mbuf_check_data {
}
/* 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);
@@ -5206,6 +5235,12 @@ struct txq_mp2mr_mbuf_check_data {
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);
@@ -5218,6 +5253,7 @@ struct txq_mp2mr_mbuf_check_data {
.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 fd24888..b5fe1b4 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -339,6 +339,7 @@ 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 edfac03..3fd2716 100644
--- a/drivers/net/mlx4/mlx4_flow.c
+++ b/drivers/net/mlx4/mlx4_flow.c
@@ -957,6 +957,45 @@ struct rte_flow *
}
/**
+ * @see rte_flow_isolate()
+ *
+ * Must be done before calling dev_configure().
+ *
+ * RSS action is possible only if this mode was requested.
+ *
+ * @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.
*
* @param priv
diff --git a/drivers/net/mlx4/mlx4_flow.h b/drivers/net/mlx4/mlx4_flow.h
index 12a293e..4d007da 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. */
--
1.8.3.1
