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authorStephen Hemminger <stephen@networkplumber.org>2018-10-11 17:04:13 -0700
committerDamjan Marion <dmarion@me.com>2018-10-15 11:29:17 +0000
commit3901a038edf47a35665c57961e6620efdd01dbbd (patch)
tree080e2cfd4a3390c37551b05cb46242191003ac04 /src/plugins/dpdk/device/common.c
parent59a829533c1345945dc1b6decc3afe29494e85cd (diff)
dpdk: only look at PCI information on PCI devices
The rte_device is use as a base type of all DPDK devices. It is not valid to use container_of to find PCI information unless the bus of the rte_device is pci. Otherwise, the pointer is looking at some other data, which may or may not be zero. This change introduces a helper function to get rte_pci_device pointer. If device is on PCI bus it returns pointer to rte_pci_device info, otherwise it returns NULL. Change-Id: Ia7446006bb93a7a54844969f3b3dd3b918890dfd Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Diffstat (limited to 'src/plugins/dpdk/device/common.c')
-rw-r--r--src/plugins/dpdk/device/common.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c
index 8699dc8689b..b9ba161423b 100644
--- a/src/plugins/dpdk/device/common.c
+++ b/src/plugins/dpdk/device/common.c
@@ -345,6 +345,19 @@ dpdk_port_state_callback (dpdk_portid_t port_id,
return dpdk_port_state_callback_inline (port_id, type, param);
}
+/* If this device is PCI return pointer to info, otherwise NULL */
+struct rte_pci_device *
+dpdk_get_pci_device (const struct rte_eth_dev_info *info)
+{
+ const struct rte_bus *bus;
+
+ bus = rte_bus_find_by_device (info->device);
+ if (bus && !strcmp (bus->name, "pci"))
+ return RTE_DEV_TO_PCI (info->device);
+ else
+ return NULL;
+}
+
/*
* fd.io coding-style-patch-verification: ON
*