diff options
| author |   Stephen Hemminger <stephen@networkplumber.org> | 2018-10-11 17:04:13 -0700 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-10-15 11:29:17 +0000 |
| commit | 3901a038edf47a35665c57961e6620efdd01dbbd (patch) | |
| tree | 080e2cfd4a3390c37551b05cb46242191003ac04 /src/plugins/dpdk/device/common.c | |
| parent | 59a829533c1345945dc1b6decc3afe29494e85cd (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.c | 13 |
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 * |