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>
diff --git a/src/plugins/dpdk/device/cli.c b/src/plugins/dpdk/device/cli.c
index 7e168af..7e20f56 100644
--- a/src/plugins/dpdk/device/cli.c
+++ b/src/plugins/dpdk/device/cli.c
@@ -68,10 +68,10 @@
rte_eth_dev_info_get ((*xd)->port_id, &dev_info);
- pci_dev = RTE_DEV_TO_PCI (dev_info.device);
+ pci_dev = dpdk_get_pci_device (&dev_info);
if (pci_dev)
- { /* bonded interface has no pci info */
+ {
vlib_pci_addr_t pci_addr;
pci_addr.domain = pci_dev->addr.domain;
@@ -1286,7 +1286,7 @@
rte_eth_dev_info_get (xd->port_id, &dev_info);
- pci_dev = RTE_DEV_TO_PCI (dev_info.device);
+ pci_dev = dpdk_get_pci_device (&dev_info);
if (pci_dev)
{ /* bonded interface has no pci info */
@@ -1481,7 +1481,7 @@
rte_eth_dev_info_get (xd->port_id, &dev_info);
- pci_dev = RTE_DEV_TO_PCI (dev_info.device);
+ pci_dev = dpdk_get_pci_device (&dev_info);
if (pci_dev)
{ /* bonded interface has no pci info */
diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c
index 8699dc8..b9ba161 100644
--- a/src/plugins/dpdk/device/common.c
+++ b/src/plugins/dpdk/device/common.c
@@ -345,6 +345,19 @@
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
*
diff --git a/src/plugins/dpdk/device/dpdk.h b/src/plugins/dpdk/device/dpdk.h
index 680425b..cc9b644 100644
--- a/src/plugins/dpdk/device/dpdk.h
+++ b/src/plugins/dpdk/device/dpdk.h
@@ -531,6 +531,9 @@
clib_error_t *dpdk_buffer_pool_create (vlib_main_t * vm, unsigned num_mbufs,
unsigned socket_id);
+struct rte_pci_device *dpdk_get_pci_device (const struct rte_eth_dev_info
+ *info);
+
#if CLI_DEBUG
int dpdk_buffer_validate_trajectory_all (u32 * uninitialized);
void dpdk_buffer_poison_trajectory_all (void);
diff --git a/src/plugins/dpdk/device/format.c b/src/plugins/dpdk/device/format.c
index a5c8daa..28e8f0a 100644
--- a/src/plugins/dpdk/device/format.c
+++ b/src/plugins/dpdk/device/format.c
@@ -273,9 +273,9 @@
}
rte_eth_dev_info_get (i, &dev_info);
- pci_dev = RTE_DEV_TO_PCI (dev_info.device);
+ pci_dev = dpdk_get_pci_device (&dev_info);
- if (pci_dev && dm->devices[i].port_type != VNET_DPDK_PORT_TYPE_FAILSAFE)
+ if (pci_dev)
ret = format (s, devname_format, device_name, pci_dev->addr.bus,
pci_dev->addr.devid, pci_dev->addr.function);
else
@@ -575,7 +575,8 @@
retval = rte_eth_dev_rss_hash_conf_get (xd->port_id, &rss_conf);
if (retval < 0)
clib_warning ("rte_eth_dev_rss_hash_conf_get returned %d", retval);
- pci = RTE_DEV_TO_PCI (di.device);
+
+ pci = dpdk_get_pci_device (&di);
if (pci)
{
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index 5479f81..086d322 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -278,7 +278,8 @@
dev_info.driver_name);
continue;
}
- pci_dev = RTE_DEV_TO_PCI (dev_info.device);
+
+ pci_dev = dpdk_get_pci_device (&dev_info);
if (pci_dev) /* bonded interface has no pci info */
{