[dpdk-dev] [PATCH v3] drivers/net: fix segfault in secondary process

[Ferruh Yigit <ferruh.yigit@intel.com>]

Calling rte_eth_dev_info_get() on secondary process cause a crash
because eth_dev->device is not set properly.

Fixes: ee27edbe0c10 ("drivers/net: share vdev data to secondary process")
Cc: stable@dpdk.org

Reported-by: Vipin Varghese <vipin.varghese@intel.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: Qi Zhang <qi.z.zhang@intel.com>
---
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Thomas Monjalon <thomas@monjalon.net>

v2:
* Added rte_eth_vdev_secondary_probe
* Updated dpaa
* More update on octeontx

v3:
* Removed helper function, fixed PMDs
---
 drivers/net/af_packet/rte_eth_af_packet.c | 1 +
 drivers/net/bonding/rte_eth_bond_pmd.c    | 1 +
 drivers/net/dpaa/dpaa_ethdev.c            | 2 ++
 drivers/net/failsafe/failsafe.c           | 1 +
 drivers/net/kni/rte_eth_kni.c             | 1 +
 drivers/net/null/rte_eth_null.c           | 1 +
 drivers/net/octeontx/octeontx_ethdev.c    | 3 +++
 drivers/net/pcap/rte_eth_pcap.c           | 1 +
 drivers/net/tap/rte_eth_tap.c             | 2 ++
 drivers/net/vhost/rte_eth_vhost.c         | 1 +
 10 files changed, 14 insertions(+)

diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index ce1e31aa4..eb3cce3a6 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -936,6 +936,7 @@ rte_pmd_af_packet_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index fc4d4fd97..ca491a820 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -3184,6 +3184,7 @@ bond_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &default_dev_ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c
index 5c0aafb3c..7a950ac04 100644
--- a/drivers/net/dpaa/dpaa_ethdev.c
+++ b/drivers/net/dpaa/dpaa_ethdev.c
@@ -1389,6 +1389,8 @@ rte_dpaa_probe(struct rte_dpaa_driver *dpaa_drv,
 		eth_dev = rte_eth_dev_attach_secondary(dpaa_dev->name);
 		if (!eth_dev)
 			return -ENOMEM;
+		eth_dev->device = &dpaa_dev->device;
+		eth_dev->dev_ops = &dpaa_devops;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/failsafe/failsafe.c b/drivers/net/failsafe/failsafe.c
index 7f89486d4..657919f93 100644
--- a/drivers/net/failsafe/failsafe.c
+++ b/drivers/net/failsafe/failsafe.c
@@ -328,6 +328,7 @@ rte_pmd_failsafe_probe(struct rte_vdev_device *vdev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &failsafe_ops;
+		eth_dev->device = &vdev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/kni/rte_eth_kni.c b/drivers/net/kni/rte_eth_kni.c
index b038fbf1a..085bb8452 100644
--- a/drivers/net/kni/rte_eth_kni.c
+++ b/drivers/net/kni/rte_eth_kni.c
@@ -420,6 +420,7 @@ eth_kni_probe(struct rte_vdev_device *vdev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &eth_kni_ops;
+		eth_dev->device = &vdev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c
index d85d25f7e..244f86545 100644
--- a/drivers/net/null/rte_eth_null.c
+++ b/drivers/net/null/rte_eth_null.c
@@ -624,6 +624,7 @@ rte_pmd_null_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/octeontx/octeontx_ethdev.c b/drivers/net/octeontx/octeontx_ethdev.c
index 21e5e4fca..974ef57c4 100644
--- a/drivers/net/octeontx/octeontx_ethdev.c
+++ b/drivers/net/octeontx/octeontx_ethdev.c
@@ -1015,6 +1015,8 @@ octeontx_create(struct rte_vdev_device *dev, int port, uint8_t evdev,
 		if (eth_dev == NULL)
 			return -ENODEV;
 
+		eth_dev->dev_ops = &octeontx_dev_ops;
+		eth_dev->device = &dev->device;
 		eth_dev->tx_pkt_burst = octeontx_xmit_pkts;
 		eth_dev->rx_pkt_burst = octeontx_recv_pkts;
 		rte_eth_dev_probing_finish(eth_dev);
@@ -1183,6 +1185,7 @@ octeontx_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &octeontx_dev_ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c
index 6779f97c1..e8810a171 100644
--- a/drivers/net/pcap/rte_eth_pcap.c
+++ b/drivers/net/pcap/rte_eth_pcap.c
@@ -1017,6 +1017,7 @@ pmd_pcap_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index 22ba872ed..0331eb9f8 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -1931,6 +1931,7 @@ rte_pmd_tun_probe(struct rte_vdev_device *dev)
 			return -1;
 		}
 		eth_dev->dev_ops = &ops;
+		eth_dev->device = &dev->device;
 		return 0;
 	}
 
@@ -2000,6 +2001,7 @@ rte_pmd_tap_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index 47b33456c..e58f32211 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -1354,6 +1354,7 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
 		}
 		/* TODO: request info from primary to set up Rx and Tx */
 		eth_dev->dev_ops = &ops;
+		eth_dev->device = &dev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
-- 
2.17.1