[dpdk-dev] [PATCH v3 2/2] testpmd: check return value of rte_eth_dev_vlan_filter()

[Michal Jastrzebski <michalx.k.jastrzebski@intel.com>]

This patch modifies testpmd behavior when setting:
rx_vlan add all vf_port (enabling all vlanids
to be passed thru rx filter on VF).
Rx_vlan_all_filter_set() function,
checks if the next vlanid can be enabled by the driver.
Number of vlanids is limited by the NIC and thus the NIC
do not allow to enable more vlanids than it can allocate
in VFTA table.

Signed-off-by: Michal Jastrzebski <michalx.k.jastrzebski@intel.com>
---
 app/test-pmd/config.c         |   15 +++++++++------
 app/test-pmd/testpmd.h        |    2 +-
 lib/librte_ether/rte_ethdev.c |    4 ++--
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 6bcd23c..4be3afa 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1648,21 +1648,22 @@ rx_vlan_filter_set(portid_t port_id, int on)
 	       "diag=%d\n", port_id, on, diag);
 }
 
-void
+int
 rx_vft_set(portid_t port_id, uint16_t vlan_id, int on)
 {
 	int diag;
 
 	if (port_id_is_invalid(port_id))
-		return;
+		return 1;
 	if (vlan_id_is_invalid(vlan_id))
-		return;
+		return 1;
 	diag = rte_eth_dev_vlan_filter(port_id, vlan_id, on);
 	if (diag == 0)
-		return;
+		return 0;
 	printf("rte_eth_dev_vlan_filter(port_pi=%d, vlan_id=%d, on=%d) failed "
 	       "diag=%d\n",
 	       port_id, vlan_id, on, diag);
+	return -1;
 }
 
 void
@@ -1672,8 +1673,10 @@ rx_vlan_all_filter_set(portid_t port_id, int on)
 
 	if (port_id_is_invalid(port_id))
 		return;
-	for (vlan_id = 0; vlan_id < 4096; vlan_id++)
-		rx_vft_set(port_id, vlan_id, on);
+	for (vlan_id = 0; vlan_id < 4096; vlan_id++) {
+		if (rx_vft_set(port_id, vlan_id, on))
+			break;
+	}
 }
 
 void
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 581130b..de87a08 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -499,7 +499,7 @@ void rx_vlan_strip_set_on_queue(portid_t port_id, uint16_t queue_id, int on);
 
 void rx_vlan_filter_set(portid_t port_id, int on);
 void rx_vlan_all_filter_set(portid_t port_id, int on);
-void rx_vft_set(portid_t port_id, uint16_t vlan_id, int on);
+int rx_vft_set(portid_t port_id, uint16_t vlan_id, int on);
 void vlan_extend_set(portid_t port_id, int on);
 void vlan_tpid_set(portid_t port_id, uint16_t tp_id);
 void tx_vlan_set(portid_t port_id, uint16_t vlan_id);
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 17be2f3..4cf2121 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -1524,8 +1524,8 @@ rte_eth_dev_vlan_filter(uint8_t port_id, uint16_t vlan_id, int on)
 		return (-EINVAL);
 	}
 	FUNC_PTR_OR_ERR_RET(*dev->dev_ops->vlan_filter_set, -ENOTSUP);
-	(*dev->dev_ops->vlan_filter_set)(dev, vlan_id, on);
-	return (0);
+
+	return (*dev->dev_ops->vlan_filter_set)(dev, vlan_id, on);
 }
 
 int
-- 
1.7.9.5