[dpdk-dev] [PATCH v4] null: fake PMD capabilities

Michał Mirosław mirq-linux at rere.qmqm.pl
Wed Dec 14 20:16:42 CET 2016


From: Paweł Małachowski <pawel.malachowski at atendesoftware.pl>

This allows for testing code which needs offloads to be supported.

Signed-off-by: Michał Mirosław <michal.miroslaw at atendesoftware.pl>
---
 drivers/net/null/rte_eth_null.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c
index 836d982..e60516f 100644
--- a/drivers/net/null/rte_eth_null.c
+++ b/drivers/net/null/rte_eth_null.c
@@ -284,6 +284,9 @@ eth_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 	return 0;
 }
 
+static void
+eth_dev_void_ok(struct rte_eth_dev *dev __rte_unused) { return; }
+
 
 static void
 eth_dev_info(struct rte_eth_dev *dev,
@@ -304,6 +307,19 @@ eth_dev_info(struct rte_eth_dev *dev,
 	dev_info->pci_dev = NULL;
 	dev_info->reta_size = internals->reta_size;
 	dev_info->flow_type_rss_offloads = internals->flow_type_rss_offloads;
+	/* We hereby declare we can RX offload VLAN-s out of thin air (they are not there)
+	 */
+	dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP |
+		DEV_RX_OFFLOAD_QINQ_STRIP;
+	/* We promise we will do any TX offloads before passing packets to /dev/null
+	 */
+	dev_info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT |
+		DEV_TX_OFFLOAD_IPV4_CKSUM | DEV_TX_OFFLOAD_UDP_CKSUM |
+		DEV_TX_OFFLOAD_TCP_CKSUM | DEV_TX_OFFLOAD_SCTP_CKSUM |
+		DEV_TX_OFFLOAD_TCP_TSO | DEV_TX_OFFLOAD_UDP_TSO |
+		DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM | DEV_TX_OFFLOAD_QINQ_INSERT |
+		DEV_TX_OFFLOAD_VXLAN_TNL_TSO | DEV_TX_OFFLOAD_GRE_TNL_TSO |
+		DEV_TX_OFFLOAD_IPIP_TNL_TSO | DEV_TX_OFFLOAD_GENEVE_TNL_TSO;
 }
 
 static void
@@ -477,7 +493,12 @@ static const struct eth_dev_ops ops = {
 	.reta_update = eth_rss_reta_update,
 	.reta_query = eth_rss_reta_query,
 	.rss_hash_update = eth_rss_hash_update,
-	.rss_hash_conf_get = eth_rss_hash_conf_get
+	.rss_hash_conf_get = eth_rss_hash_conf_get,
+	/* Fake our capabilities */
+	.promiscuous_enable   = eth_dev_void_ok,
+	.promiscuous_disable  = eth_dev_void_ok,
+	.allmulticast_enable  = eth_dev_void_ok,
+	.allmulticast_disable = eth_dev_void_ok
 };
 
 int
-- 
2.10.2



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