[dpdk-dev] [PATCH v5] ethdev: allow returning error on VLAN offload ops

Ferruh Yigit ferruh.yigit at intel.com
Wed Oct 25 05:01:01 CEST 2017


From: David Harton <dharton at cisco.com>

Some devices may not support or fail setting VLAN offload
configuration based on dynamic circumstances so the
vlan_offload_set_t vector is modified to return an int so
the caller can determine success or not.

rte_eth_dev_set_vlan_offload is updated to return the
value provided by the vector when called along with restoring
the original offload configs on failure.

Existing vlan_offload_set_t vectors are modified to return
an int.  Majority of cases return 0 but a few that actually
can fail now return their failure codes.

Finally, a vlan_offload_set_t vector is added to virtio
to facilitate dynamically turning VLAN strip on or off.

Signed-off-by: David Harton <dharton at cisco.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
---

v5
* rebase on latest next-net
* add ETH_VLAN_FILTER_MASK mask check to virtio

v4
* Modified commit message heading
* Moved rel_note comments from ABI to API section
* Renamed locals of rte_eth_dev_set_vlan_offload from 'org*' to 'orig*'

v3
* Fixed a format error.
* Apologies...need to figure out why checkpatches.pl keeps saying
  valid patch when I've got soft tabs.

v2
* Fixed a missed format error.
* Removed vlan offload vector call casts and replaced with checks
  for return values.

v1
* This is an ABI breakage that has been previously negotiated
  with Thomas and the proposed rel note change is included as well.
---
 doc/guides/rel_notes/release_17_11.rst |  7 +++++++
 drivers/net/avp/avp_ethdev.c           | 13 ++++++++++---
 drivers/net/bnxt/bnxt_ethdev.c         | 10 +++++++---
 drivers/net/dpaa2/dpaa2_ethdev.c       | 15 ++++++++++++---
 drivers/net/e1000/em_ethdev.c          | 13 ++++++++++---
 drivers/net/e1000/igb_ethdev.c         | 13 ++++++++++---
 drivers/net/enic/enic_ethdev.c         |  9 ++++++---
 drivers/net/fm10k/fm10k_ethdev.c       |  4 +++-
 drivers/net/i40e/i40e_ethdev.c         | 12 +++++++++---
 drivers/net/i40e/i40e_ethdev_vf.c      | 10 +++++-----
 drivers/net/ixgbe/ixgbe_ethdev.c       | 27 ++++++++++++++++++++-------
 drivers/net/mlx5/mlx5.h                |  2 +-
 drivers/net/mlx5/mlx5_vlan.c           |  6 ++++--
 drivers/net/nfp/nfp_net.c              | 12 +++++++-----
 drivers/net/qede/qede_ethdev.c         |  9 +++++++--
 drivers/net/virtio/virtio_ethdev.c     | 25 +++++++++++++++++++++++++
 drivers/net/vmxnet3/vmxnet3_ethdev.c   | 12 ++++++++----
 lib/librte_ether/rte_ethdev.c          | 12 +++++++++++-
 lib/librte_ether/rte_ethdev.h          |  2 +-
 19 files changed, 163 insertions(+), 50 deletions(-)

diff --git a/doc/guides/rel_notes/release_17_11.rst b/doc/guides/rel_notes/release_17_11.rst
index e505a4dcd..65ab4b767 100644
--- a/doc/guides/rel_notes/release_17_11.rst
+++ b/doc/guides/rel_notes/release_17_11.rst
@@ -322,6 +322,13 @@ API Changes
   ``rte_log_get_global_level()``, ``rte_log_set_level()`` and
   ``rte_log_get_level()``.
 
+* **Modified the vlan_offload_set_t function prototype in the ethdev library.**
+
+  Changed the function prototype of ``vlan_offload_set_t``.  The return value
+  has been changed from ``void`` to ``int`` so the caller to knows whether
+  the backing device supports the operation or if the operation was
+  successfully performed.
+
 
 ABI Changes
 -----------
diff --git a/drivers/net/avp/avp_ethdev.c b/drivers/net/avp/avp_ethdev.c
index b97a90cea..7853fbf15 100644
--- a/drivers/net/avp/avp_ethdev.c
+++ b/drivers/net/avp/avp_ethdev.c
@@ -70,7 +70,7 @@ static void avp_dev_stop(struct rte_eth_dev *dev);
 static void avp_dev_close(struct rte_eth_dev *dev);
 static void avp_dev_info_get(struct rte_eth_dev *dev,
 			     struct rte_eth_dev_info *dev_info);
-static void avp_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int avp_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 static int avp_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete);
 static void avp_dev_promiscuous_enable(struct rte_eth_dev *dev);
 static void avp_dev_promiscuous_disable(struct rte_eth_dev *dev);
@@ -2031,7 +2031,12 @@ avp_dev_configure(struct rte_eth_dev *eth_dev)
 	mask = (ETH_VLAN_STRIP_MASK |
 		ETH_VLAN_FILTER_MASK |
 		ETH_VLAN_EXTEND_MASK);
-	avp_vlan_offload_set(eth_dev, mask);
+	ret = avp_vlan_offload_set(eth_dev, mask);
+	if (ret < 0) {
+		PMD_DRV_LOG(ERR, "VLAN offload set failed by host, ret=%d\n",
+			    ret);
+		goto unlock;
+	}
 
 	/* update device config */
 	memset(&config, 0, sizeof(config));
@@ -2214,7 +2219,7 @@ avp_dev_info_get(struct rte_eth_dev *eth_dev,
 	}
 }
 
-static void
+static int
 avp_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 {
 	struct avp_dev *avp = AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
@@ -2239,6 +2244,8 @@ avp_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 		if (eth_dev->data->dev_conf.rxmode.hw_vlan_extend)
 			PMD_DRV_LOG(ERR, "VLAN extend offload not supported\n");
 	}
+
+	return 0;
 }
 
 static int
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index c2d54efd8..ad50045ac 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -145,7 +145,7 @@ static const struct rte_pci_id bnxt_pci_id_map[] = {
 	ETH_RSS_NONFRAG_IPV6_TCP |	\
 	ETH_RSS_NONFRAG_IPV6_UDP)
 
-static void bnxt_vlan_offload_set_op(struct rte_eth_dev *dev, int mask);
+static int bnxt_vlan_offload_set_op(struct rte_eth_dev *dev, int mask);
 
 /***********************/
 
@@ -591,7 +591,9 @@ static int bnxt_dev_start_op(struct rte_eth_dev *eth_dev)
 		vlan_mask |= ETH_VLAN_FILTER_MASK;
 	if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
 		vlan_mask |= ETH_VLAN_STRIP_MASK;
-	bnxt_vlan_offload_set_op(eth_dev, vlan_mask);
+	rc = bnxt_vlan_offload_set_op(eth_dev, vlan_mask);
+	if (rc)
+		goto error;
 
 	return 0;
 
@@ -1350,7 +1352,7 @@ static int bnxt_vlan_filter_set_op(struct rte_eth_dev *eth_dev,
 		return bnxt_del_vlan_filter(bp, vlan_id);
 }
 
-static void
+static int
 bnxt_vlan_offload_set_op(struct rte_eth_dev *dev, int mask)
 {
 	struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
@@ -1382,6 +1384,8 @@ bnxt_vlan_offload_set_op(struct rte_eth_dev *dev, int mask)
 
 	if (mask & ETH_VLAN_EXTEND_MASK)
 		RTE_LOG(ERR, PMD, "Extend VLAN Not supported\n");
+
+	return 0;
 }
 
 static void
diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
index 1ac607cb0..881a209d8 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -162,7 +162,7 @@ dpaa2_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 	return ret;
 }
 
-static void
+static int
 dpaa2_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	struct dpaa2_dev_priv *priv = dev->data->dev_private;
@@ -188,6 +188,8 @@ dpaa2_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 			RTE_LOG(INFO, PMD,
 				"VLAN extend offload not supported\n");
 	}
+
+	return 0;
 }
 
 static int
@@ -754,8 +756,15 @@ dpaa2_dev_start(struct rte_eth_dev *dev)
 		return ret;
 	}
 	/* VLAN Offload Settings */
-	if (priv->max_vlan_filters)
-		dpaa2_vlan_offload_set(dev, ETH_VLAN_FILTER_MASK);
+	if (priv->max_vlan_filters) {
+		ret = dpaa2_vlan_offload_set(dev, ETH_VLAN_FILTER_MASK);
+		if (ret) {
+			PMD_INIT_LOG(ERR, "Error to dpaa2_vlan_offload_set:"
+				     "code = %d\n", ret);
+			return ret;
+		}
+	}
+
 
 	/* if the interrupts were configured on this devices*/
 	if (intr_handle && (intr_handle->fd) &&
diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c
index 6ebfa6d4c..770ab8141 100644
--- a/drivers/net/e1000/em_ethdev.c
+++ b/drivers/net/e1000/em_ethdev.c
@@ -99,7 +99,7 @@ static int eth_em_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 
 static int eth_em_vlan_filter_set(struct rte_eth_dev *dev,
 		uint16_t vlan_id, int on);
-static void eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 static void em_vlan_hw_filter_enable(struct rte_eth_dev *dev);
 static void em_vlan_hw_filter_disable(struct rte_eth_dev *dev);
 static void em_vlan_hw_strip_enable(struct rte_eth_dev *dev);
@@ -669,7 +669,12 @@ eth_em_start(struct rte_eth_dev *dev)
 
 	mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK | \
 			ETH_VLAN_EXTEND_MASK;
-	eth_em_vlan_offload_set(dev, mask);
+	ret = eth_em_vlan_offload_set(dev, mask);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Unable to update vlan offload");
+		em_dev_clear_queues(dev);
+		return ret;
+	}
 
 	/* Set Interrupt Throttling Rate to maximum allowed value. */
 	E1000_WRITE_REG(hw, E1000_ITR, UINT16_MAX);
@@ -1449,7 +1454,7 @@ em_vlan_hw_strip_enable(struct rte_eth_dev *dev)
 	E1000_WRITE_REG(hw, E1000_CTRL, reg);
 }
 
-static void
+static int
 eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	if(mask & ETH_VLAN_STRIP_MASK){
@@ -1465,6 +1470,8 @@ eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		else
 			em_vlan_hw_filter_disable(dev);
 	}
+
+	return 0;
 }
 
 /*
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 003bdf0f6..53f160030 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -157,7 +157,7 @@ static int eth_igb_vlan_filter_set(struct rte_eth_dev *dev,
 static int eth_igb_vlan_tpid_set(struct rte_eth_dev *dev,
 				 enum rte_vlan_type vlan_type,
 				 uint16_t tpid_id);
-static void eth_igb_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int eth_igb_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 
 static void igb_vlan_hw_filter_enable(struct rte_eth_dev *dev);
 static void igb_vlan_hw_filter_disable(struct rte_eth_dev *dev);
@@ -1403,7 +1403,12 @@ eth_igb_start(struct rte_eth_dev *dev)
 	 */
 	mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK | \
 			ETH_VLAN_EXTEND_MASK;
-	eth_igb_vlan_offload_set(dev, mask);
+	ret = eth_igb_vlan_offload_set(dev, mask);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Unable to set vlan offload");
+		igb_dev_clear_queues(dev);
+		return ret;
+	}
 
 	if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_ONLY) {
 		/* Enable VLAN filter since VMDq always use VLAN filter */
@@ -2720,7 +2725,7 @@ igb_vlan_hw_extend_enable(struct rte_eth_dev *dev)
 						2 * VLAN_TAG_SIZE);
 }
 
-static void
+static int
 eth_igb_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	if(mask & ETH_VLAN_STRIP_MASK){
@@ -2743,6 +2748,8 @@ eth_igb_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		else
 			igb_vlan_hw_extend_disable(dev);
 	}
+
+	return 0;
 }
 
 
diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
index 5386b2ae3..c02f9b7b3 100644
--- a/drivers/net/enic/enic_ethdev.c
+++ b/drivers/net/enic/enic_ethdev.c
@@ -362,7 +362,7 @@ static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
 	return err;
 }
 
-static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
+static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 {
 	struct enic *enic = pmd_priv(eth_dev);
 
@@ -386,6 +386,8 @@ static void enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 		dev_warning(enic,
 			"Configuration of extended VLAN is not supported\n");
 	}
+
+	return 0;
 }
 
 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
@@ -410,9 +412,10 @@ static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
 			eth_dev->data->dev_conf.rxmode.split_hdr_size);
 	}
 
-	enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
 	enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
-	return 0;
+	ret = enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
+
+	return ret;
 }
 
 /* Start the device.
diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index 7baa9279d..46a312fad 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1594,7 +1594,7 @@ fm10k_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 	return 0;
 }
 
-static void
+static int
 fm10k_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	if (mask & ETH_VLAN_STRIP_MASK) {
@@ -1613,6 +1613,8 @@ fm10k_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		if (!dev->data->dev_conf.rxmode.hw_vlan_filter)
 			PMD_INIT_LOG(ERR, "VLAN filter is always on in fm10k");
 	}
+
+	return 0;
 }
 
 /* Add/Remove a MAC address, and update filters to main VSI */
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 48db2dde3..86c43881b 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -276,7 +276,7 @@ static int i40e_vlan_filter_set(struct rte_eth_dev *dev,
 static int i40e_vlan_tpid_set(struct rte_eth_dev *dev,
 			      enum rte_vlan_type vlan_type,
 			      uint16_t tpid);
-static void i40e_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int i40e_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 static void i40e_vlan_strip_queue_set(struct rte_eth_dev *dev,
 				      uint16_t queue,
 				      int on);
@@ -3221,7 +3221,7 @@ i40e_vlan_tpid_set(struct rte_eth_dev *dev,
 	return ret;
 }
 
-static void
+static int
 i40e_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
@@ -3254,6 +3254,8 @@ i40e_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		else
 			i40e_vsi_config_double_vlan(vsi, FALSE);
 	}
+
+	return 0;
 }
 
 static void
@@ -5314,7 +5316,11 @@ i40e_dev_init_vlan(struct rte_eth_dev *dev)
 
 	/* Apply vlan offload setting */
 	mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK;
-	i40e_vlan_offload_set(dev, mask);
+	ret = i40e_vlan_offload_set(dev, mask);
+	if (ret) {
+		PMD_DRV_LOG(INFO, "Failed to update vlan offload");
+		return ret;
+	}
 
 	/* Apply double-vlan setting, not implemented yet */
 
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 9f1487509..ca1d9f930 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -118,7 +118,7 @@ static int i40evf_dev_xstats_get_names(struct rte_eth_dev *dev,
 static void i40evf_dev_xstats_reset(struct rte_eth_dev *dev);
 static int i40evf_vlan_filter_set(struct rte_eth_dev *dev,
 				  uint16_t vlan_id, int on);
-static void i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 static void i40evf_dev_close(struct rte_eth_dev *dev);
 static int  i40evf_dev_reset(struct rte_eth_dev *dev);
 static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev);
@@ -1588,12 +1588,10 @@ static int
 i40evf_init_vlan(struct rte_eth_dev *dev)
 {
 	/* Apply vlan offload setting */
-	i40evf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK);
-
-	return I40E_SUCCESS;
+	return i40evf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK);
 }
 
-static void
+static int
 i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
@@ -1606,6 +1604,8 @@ i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		else
 			i40evf_disable_vlan_strip(dev);
 	}
+
+	return 0;
 }
 
 static int
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 2ff904119..371998e42 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -219,7 +219,7 @@ static void ixgbe_vlan_hw_strip_bitmap_set(struct rte_eth_dev *dev,
 		uint16_t queue, bool on);
 static void ixgbe_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue,
 		int on);
-static void ixgbe_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int ixgbe_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 static void ixgbe_vlan_hw_strip_enable(struct rte_eth_dev *dev, uint16_t queue);
 static void ixgbe_vlan_hw_strip_disable(struct rte_eth_dev *dev, uint16_t queue);
 static void ixgbe_vlan_hw_extend_enable(struct rte_eth_dev *dev);
@@ -276,7 +276,7 @@ static int ixgbevf_vlan_filter_set(struct rte_eth_dev *dev,
 		uint16_t vlan_id, int on);
 static void ixgbevf_vlan_strip_queue_set(struct rte_eth_dev *dev,
 		uint16_t queue, int on);
-static void ixgbevf_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int ixgbevf_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 static void ixgbevf_set_vfta_all(struct rte_eth_dev *dev, bool on);
 static int ixgbevf_dev_rx_queue_intr_enable(struct rte_eth_dev *dev,
 					    uint16_t queue_id);
@@ -2126,7 +2126,7 @@ ixgbe_vlan_hw_extend_enable(struct rte_eth_dev *dev)
 	 */
 }
 
-static void
+static int
 ixgbe_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	if (mask & ETH_VLAN_STRIP_MASK) {
@@ -2149,6 +2149,8 @@ ixgbe_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		else
 			ixgbe_vlan_hw_extend_disable(dev);
 	}
+
+	return 0;
 }
 
 static void
@@ -2570,9 +2572,13 @@ ixgbe_dev_start(struct rte_eth_dev *dev)
 		goto error;
 	}
 
-    mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK |
+	mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK |
 		ETH_VLAN_EXTEND_MASK;
-	ixgbe_vlan_offload_set(dev, mask);
+	err = ixgbe_vlan_offload_set(dev, mask);
+	if (err) {
+		PMD_INIT_LOG(ERR, "Unable to set VLAN offload");
+		goto error;
+	}
 
 	if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_VMDQ_ONLY) {
 		/* Enable vlan filtering for VMDq */
@@ -5024,7 +5030,12 @@ ixgbevf_dev_start(struct rte_eth_dev *dev)
 	/* Set HW strip */
 	mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK |
 		ETH_VLAN_EXTEND_MASK;
-	ixgbevf_vlan_offload_set(dev, mask);
+	err = ixgbevf_vlan_offload_set(dev, mask);
+	if (err) {
+		PMD_INIT_LOG(ERR, "Unable to set VLAN offload (%d)", err);
+		ixgbe_dev_clear_queues(dev);
+		return err;
+	}
 
 	ixgbevf_dev_rxtx_start(dev);
 
@@ -5213,7 +5224,7 @@ ixgbevf_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
 	ixgbe_vlan_hw_strip_bitmap_set(dev, queue, on);
 }
 
-static void
+static int
 ixgbevf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	struct ixgbe_hw *hw =
@@ -5228,6 +5239,8 @@ ixgbevf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		for (i = 0; i < hw->mac.max_rx_queues; i++)
 			ixgbevf_vlan_strip_queue_set(dev, i, on);
 	}
+
+	return 0;
 }
 
 int
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 3f452b2f0..e6a69b823 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -248,7 +248,7 @@ int mlx5_xstats_get_names(struct rte_eth_dev *,
 /* mlx5_vlan.c */
 
 int mlx5_vlan_filter_set(struct rte_eth_dev *, uint16_t, int);
-void mlx5_vlan_offload_set(struct rte_eth_dev *, int);
+int mlx5_vlan_offload_set(struct rte_eth_dev *, int);
 void mlx5_vlan_strip_queue_set(struct rte_eth_dev *, uint16_t, int);
 
 /* mlx5_trigger.c */
diff --git a/drivers/net/mlx5/mlx5_vlan.c b/drivers/net/mlx5/mlx5_vlan.c
index ed91d9b28..89874aabd 100644
--- a/drivers/net/mlx5/mlx5_vlan.c
+++ b/drivers/net/mlx5/mlx5_vlan.c
@@ -178,7 +178,7 @@ mlx5_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue, int on)
  * @param mask
  *   VLAN offload bit mask.
  */
-void
+int
 mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	struct priv *priv = dev->data->dev_private;
@@ -189,7 +189,7 @@ mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 
 		if (!priv->hw_vlan_strip) {
 			ERROR("VLAN stripping is not supported");
-			return;
+			return 0;
 		}
 
 		/* Run on every RX queue and set/reset VLAN stripping. */
@@ -198,4 +198,6 @@ mlx5_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 			priv_vlan_strip_queue_set(priv, i, hw_vlan_strip);
 		priv_unlock(priv);
 	}
+
+	return 0;
 }
diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 0917b9c49..71d4a8629 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -2306,11 +2306,12 @@ nfp_net_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 	return i;
 }
 
-static void
+static int
 nfp_net_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	uint32_t new_ctrl, update;
 	struct nfp_net_hw *hw;
+	int ret;
 
 	hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	new_ctrl = 0;
@@ -2331,14 +2332,15 @@ nfp_net_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		new_ctrl = hw->ctrl & ~NFP_NET_CFG_CTRL_RXVLAN;
 
 	if (new_ctrl == 0)
-		return;
+		return 0;
 
 	update = NFP_NET_CFG_UPDATE_GEN;
 
-	if (nfp_net_reconfig(hw, new_ctrl, update) < 0)
-		return;
+	ret = nfp_net_reconfig(hw, new_ctrl, update);
+	if (!ret)
+		hw->ctrl = new_ctrl;
 
-	hw->ctrl = new_ctrl;
+	return ret;
 }
 
 /* Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device */
diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 8b3f0ff7f..661d9381e 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -1005,7 +1005,7 @@ static int qede_vlan_filter_set(struct rte_eth_dev *eth_dev,
 	return rc;
 }
 
-static void qede_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
+static int qede_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 {
 	struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
 	struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
@@ -1043,6 +1043,8 @@ static void qede_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 
 	DP_INFO(edev, "vlan offload mask %d vlan-strip %d vlan-filter %d\n",
 		mask, rxmode->hw_vlan_strip, rxmode->hw_vlan_filter);
+
+	return 0;
 }
 
 static void qede_prandom_bytes(uint32_t *buff)
@@ -1192,6 +1194,7 @@ static int qede_dev_configure(struct rte_eth_dev *eth_dev)
 	struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
 	struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
 	struct rte_eth_rxmode *rxmode = &eth_dev->data->dev_conf.rxmode;
+	int ret;
 
 	PMD_INIT_FUNC_TRACE(edev);
 
@@ -1262,9 +1265,11 @@ static int qede_dev_configure(struct rte_eth_dev *eth_dev)
 	qdev->new_mtu = qdev->mtu;
 
 	/* Enable VLAN offloads by default */
-	qede_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK  |
+	ret = qede_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK  |
 			ETH_VLAN_FILTER_MASK |
 			ETH_VLAN_EXTEND_MASK);
+	if (ret)
+		return ret;
 
 	DP_INFO(edev, "Device configured with RSS=%d TSS=%d\n",
 			QEDE_RSS_COUNT(qdev), QEDE_TSS_COUNT(qdev));
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index bfbd73770..2e4a49ea9 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -73,6 +73,7 @@ static void virtio_dev_info_get(struct rte_eth_dev *dev,
 				struct rte_eth_dev_info *dev_info);
 static int virtio_dev_link_update(struct rte_eth_dev *dev,
 	int wait_to_complete);
+static int virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 
 static void virtio_set_hwaddr(struct virtio_hw *hw);
 static void virtio_get_hwaddr(struct virtio_hw *hw);
@@ -779,6 +780,7 @@ static const struct eth_dev_ops virtio_eth_dev_ops = {
 	.stats_reset             = virtio_dev_stats_reset,
 	.xstats_reset            = virtio_dev_stats_reset,
 	.link_update             = virtio_dev_link_update,
+	.vlan_offload_set        = virtio_dev_vlan_offload_set,
 	.rx_queue_setup          = virtio_dev_rx_queue_setup,
 	.rx_queue_intr_enable    = virtio_dev_rx_queue_intr_enable,
 	.rx_queue_intr_disable   = virtio_dev_rx_queue_intr_disable,
@@ -1953,6 +1955,29 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet
 	return (old.link_status == link.link_status) ? -1 : 0;
 }
 
+static int
+virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
+{
+	const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+	struct virtio_hw *hw = dev->data->dev_private;
+
+	if (mask & ETH_VLAN_FILTER_MASK) {
+		if (rxmode->hw_vlan_filter &&
+				!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) {
+
+			PMD_DRV_LOG(NOTICE,
+				"vlan filtering not available on this host");
+
+			return -ENOTSUP;
+		}
+	}
+
+	if (mask & ETH_VLAN_STRIP_MASK)
+		hw->vlan_strip = rxmode->hw_vlan_strip;
+
+	return 0;
+}
+
 static void
 virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 {
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index 58bc4f2f2..cde112301 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -100,7 +100,7 @@ static const uint32_t *
 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev);
 static int vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev,
 				       uint16_t vid, int on);
-static void vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+static int vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 static void vmxnet3_mac_addr_set(struct rte_eth_dev *dev,
 				 struct ether_addr *mac_addr);
 static void vmxnet3_interrupt_handler(void *param);
@@ -730,8 +730,10 @@ vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 		devRead->rssConfDesc.confPA  = hw->rss_confPA;
 	}
 
-	vmxnet3_dev_vlan_offload_set(dev,
-				     ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK);
+	ret = vmxnet3_dev_vlan_offload_set(dev,
+			ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK);
+	if (ret)
+		return ret;
 
 	vmxnet3_write_mac(hw, dev->data->mac_addrs->addr_bytes);
 
@@ -1279,7 +1281,7 @@ vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
 	return 0;
 }
 
-static void
+static int
 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 {
 	struct vmxnet3_hw *hw = dev->data->dev_private;
@@ -1305,6 +1307,8 @@ vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 		VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 				       VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 	}
+
+	return 0;
 }
 
 static void
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 0b13a58db..94c2fe2f1 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -2180,10 +2180,14 @@ rte_eth_dev_set_vlan_offload(uint16_t port_id, int offload_mask)
 	int ret = 0;
 	int mask = 0;
 	int cur, org = 0;
+	uint64_t orig_offloads;
 
 	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
 	dev = &rte_eth_devices[port_id];
 
+	/* save original values in case of failure */
+	orig_offloads = dev->data->dev_conf.rxmode.offloads;
+
 	/*check which option changed by application*/
 	cur = !!(offload_mask & ETH_VLAN_STRIP_OFFLOAD);
 	org = !!(dev->data->dev_conf.rxmode.offloads &
@@ -2236,7 +2240,13 @@ rte_eth_dev_set_vlan_offload(uint16_t port_id, int offload_mask)
 	 */
 	rte_eth_convert_rx_offloads(dev->data->dev_conf.rxmode.offloads,
 				    &dev->data->dev_conf.rxmode);
-	(*dev->dev_ops->vlan_offload_set)(dev, mask);
+	ret = (*dev->dev_ops->vlan_offload_set)(dev, mask);
+	if (ret) {
+		/* hit an error restore  original values */
+		dev->data->dev_conf.rxmode.offloads = orig_offloads;
+		rte_eth_convert_rx_offloads(dev->data->dev_conf.rxmode.offloads,
+					    &dev->data->dev_conf.rxmode);
+	}
 
 	return ret;
 }
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 2a0129a2a..be74b2af2 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -1323,7 +1323,7 @@ typedef int (*vlan_tpid_set_t)(struct rte_eth_dev *dev,
 			       enum rte_vlan_type type, uint16_t tpid);
 /**< @internal set the outer/inner VLAN-TPID by an Ethernet device. */
 
-typedef void (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask);
+typedef int (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask);
 /**< @internal set VLAN offload function by an Ethernet device. */
 
 typedef int (*vlan_pvid_set_t)(struct rte_eth_dev *dev,
-- 
2.13.6



More information about the dev mailing list