From 3901a038edf47a35665c57961e6620efdd01dbbd Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Thu, 11 Oct 2018 17:04:13 -0700 Subject: 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 --- src/plugins/dpdk/device/common.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/plugins/dpdk/device/common.c') 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 * -- cgit 1.2.3-korg