[dpdk-dev] [PATCH v2] net/bonding: support bifurcated driver in eal cli using --vdev
Gowrishankar
gowrishankar.m at linux.vnet.ibm.com
Tue Jul 4 13:57:40 CEST 2017
From: Gowrishankar Muthukrishnan <gowrishankar.m at linux.vnet.ibm.com>
At present, creating bonding devices using --vdev is broken for PMD like
mlx5 as it is neither UIO nor VFIO based and hence PMD driver is unknown
to find_port_id_by_pci_addr(), as below.
testpmd <EAL args> --vdev 'net_bonding0,mode=1,slave=<PCI>,socket_id=0'
PMD: bond_ethdev_parse_slave_port_kvarg(150) - Invalid slave port value
(<PCI ID>) specified
EAL: Failed to parse slave ports for bonded device net_bonding0
This patch fixes parsing PCI ID from bonding device params by verifying
it in RTE PCI bus, rather than checking dev->kdrv.
Changes:
v2 - revisit fix by iterating rte_pci_bus
Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m at linux.vnet.ibm.com>
---
drivers/net/bonding/rte_eth_bond_args.c | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/drivers/net/bonding/rte_eth_bond_args.c b/drivers/net/bonding/rte_eth_bond_args.c
index c718e61..180586c 100644
--- a/drivers/net/bonding/rte_eth_bond_args.c
+++ b/drivers/net/bonding/rte_eth_bond_args.c
@@ -40,6 +40,8 @@
#include "rte_eth_bond.h"
#include "rte_eth_bond_private.h"
+extern struct rte_pci_bus rte_pci_bus;
+
const char *pmd_bond_init_valid_arguments[] = {
PMD_BOND_SLAVE_PORT_KVARG,
PMD_BOND_PRIMARY_SLAVE_KVARG,
@@ -59,16 +61,6 @@
unsigned i;
for (i = 0; i < rte_eth_dev_count(); i++) {
-
- /* Currently populated by rte_eth_copy_pci_info().
- *
- * TODO: Once the PCI bus has arrived we should have a better
- * way to test for being a PCI device or not.
- */
- if (rte_eth_devices[i].data->kdrv == RTE_KDRV_UNKNOWN ||
- rte_eth_devices[i].data->kdrv == RTE_KDRV_NONE)
- continue;
-
pci_dev = RTE_ETH_DEV_TO_PCI(&rte_eth_devices[i]);
eth_pci_addr = &pci_dev->addr;
@@ -103,12 +95,18 @@
static inline int
parse_port_id(const char *port_str)
{
+ struct rte_pci_device *dev;
struct rte_pci_addr dev_addr;
- int port_id;
+ int port_id = -1;
/* try parsing as pci address, physical devices */
if (eal_parse_pci_DomBDF(port_str, &dev_addr) == 0) {
- port_id = find_port_id_by_pci_addr(&dev_addr);
+ FOREACH_DEVICE_ON_PCIBUS(dev) {
+ if (rte_eal_compare_pci_addr(&dev->addr, &dev_addr))
+ continue;
+
+ port_id = find_port_id_by_pci_addr(&dev_addr);
+ }
if (port_id < 0)
return -1;
} else {
--
1.9.1
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