The function tries to find a driver for the specified device, and then
close the driver.

Signed-off-by: Tetsuya Mukawa <mukawa at igel.co.jp>
---
 lib/librte_eal/common/eal_common_pci.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/lib/librte_eal/common/eal_common_pci.c 
b/lib/librte_eal/common/eal_common_pci.c
index 1e3efea..b404ee0 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -100,6 +100,7 @@ static struct rte_devargs *pci_devargs_lookup(struct 
rte_pci_device *dev)
 }

 #define INVOKE_PROBE   (0)
+#define INVOKE_CLOSE   (1)

 static int
 pci_invoke_all_drivers(struct rte_pci_device *dev, int type)
@@ -112,6 +113,11 @@ pci_invoke_all_drivers(struct rte_pci_device *dev, int 
type)
                case INVOKE_PROBE:
                        rc = rte_eal_pci_probe_one_driver(dr, dev);
                        break;
+#if defined(RTE_LIBRTE_EAL_HOTPLUG) && defined(RTE_LIBRTE_EAL_LINUXAPP)
+               case INVOKE_CLOSE:
+                       rc = rte_eal_pci_close_one_driver(dr, dev);
+                       break;
+#endif
                }
                if (rc < 0)
                        /* negative value is an error */
@@ -135,6 +141,19 @@ pci_probe_all_drivers(struct rte_pci_device *dev)
        return pci_invoke_all_drivers(dev, INVOKE_PROBE);
 }

+#if defined(RTE_LIBRTE_EAL_HOTPLUG) && defined(RTE_LIBRTE_EAL_LINUXAPP)
+/*
+ * If vendor/device ID match, call the devclose() function of all
+ * registered driver for the given device. Return -1 if initialization
+ * failed, return 1 if no driver is found for this device.
+ */
+static int
+pci_close_all_drivers(struct rte_pci_device *dev)
+{
+       return pci_invoke_all_drivers(dev, INVOKE_CLOSE);
+}
+#endif /* RTE_LIBRTE_EAL_HOTPLUG & RTE_LIBRTE_EAL_LINUXAPP */
+
 /*
  * Scan the content of the PCI bus, and call the devinit() function for
  * all registered drivers that have a matching entry in its id_table
-- 
1.9.1

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