Some devices need to be unbound in order to be used via the PMD
without kernel module.
Signed-off-by: Damien Millescamps <damien.millescamps at 6wind.com>
---
lib/librte_eal/common/include/rte_pci.h | 2 ++
lib/librte_eal/linuxapp/eal/eal_pci.c | 5 +++++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/lib/librte_eal/common/include/rte_pci.h
b/lib/librte_eal/common/include/rte_pci.h
index c3937f0..6582c25 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -157,6 +157,8 @@ struct rte_pci_driver {
#define RTE_PCI_DRV_NEED_IGB_UIO 0x0001
/** Device driver must be registered several times until failure */
#define RTE_PCI_DRV_MULTIPLE 0x0002
+/** Device needs to be unbound even if no module is provided */
+#define RTE_PCI_DRV_FORCE_UNBIND 0x0004
/**
* Probe the PCI bus for registered drivers.
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c
b/lib/librte_eal/linuxapp/eal/eal_pci.c
index 882fd6f..1d087b8 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
@@ -745,6 +745,11 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr,
struct rte_pci_device *d
/* map the NIC resources */
if (pci_uio_map_resource(dev) < 0)
return -1;
+ } else if (dr->drv_flags & RTE_PCI_DRV_FORCE_UNBIND &&
+ rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ /* unbind current driver, bind ours */
+ if (pci_unbind_kernel_driver(dev) < 0)
+ return -1;
}
/* reference driver structure */
--
1.7.2.5
