[dpdk-dev] [PATCH v8 2/4] net/mlx4: implement isolated mode from flow API
Vasily Philipov
vasilyf at mellanox.com
Wed Jul 5 10:14:09 CEST 2017
The user must request isolated mode before device configuration.
Signed-off-by: Vasily Philipov <vasilyf at mellanox.com>
---
drivers/net/mlx4/mlx4.c | 57 +++++++++++++++++++++++++++++++++++---------
drivers/net/mlx4/mlx4.h | 1 +
drivers/net/mlx4/mlx4_flow.c | 37 ++++++++++++++++++++++++++++
drivers/net/mlx4/mlx4_flow.h | 5 ++++
4 files changed, 89 insertions(+), 11 deletions(-)
diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 16cafae..fdd9cce 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -588,7 +588,7 @@ 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;
@@ -2518,6 +2518,7 @@ 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;
@@ -2767,12 +2768,13 @@ 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);
- 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)
@@ -3472,7 +3474,7 @@ 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);
@@ -3517,7 +3519,7 @@ 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);
@@ -3773,7 +3775,7 @@ struct txq_mp2mr_mbuf_check_data {
(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) {
@@ -4002,7 +4004,10 @@ 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 = &priv->rxq_parent;
r = 1;
} else {
@@ -4090,7 +4095,10 @@ 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 = &priv->rxq_parent;
r = 1;
} else {
@@ -4522,6 +4530,8 @@ 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. */
@@ -4555,6 +4565,12 @@ 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. */
@@ -4602,6 +4618,12 @@ 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;
@@ -4650,7 +4672,7 @@ 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;
}
@@ -4682,6 +4704,12 @@ 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;
@@ -4730,7 +4758,7 @@ struct txq_mp2mr_mbuf_check_data {
if (mlx4_is_secondary())
return;
priv_lock(priv);
- if (!priv->allmulti) {
+ if (!priv->allmulti || priv->isolated) {
priv_unlock(priv);
return;
}
@@ -4873,7 +4901,7 @@ 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);
@@ -5108,6 +5136,12 @@ 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);
@@ -5120,6 +5154,7 @@ 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 c46fc23..1119525 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 edfac03..5ad50bd 100644
--- a/drivers/net/mlx4/mlx4_flow.c
+++ b/drivers/net/mlx4/mlx4_flow.c
@@ -957,6 +957,43 @@ struct rte_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.
*
* @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
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