diff mbox

[dpdk-dev,v6,10/11] pci: implement hotplug bus operation

Message ID 7bfff124f11d27694c3d318ff3aad9b33247906a.1498577192.git.gaetan.rivet@6wind.com (mailing list archive)
State Superseded, archived
Headers

Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Gaëtan Rivet June 27, 2017, 4:11 p.m. UTC 
  Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
---
 lib/librte_eal/common/eal_common_pci.c | 44 ++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
diff mbox

Patch

diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index ab55041..e30d2d1 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -47,6 +47,7 @@ 
 #include <rte_pci.h>
 #include <rte_per_lcore.h>
 #include <rte_memory.h>
+#include <rte_memcpy.h>
 #include <rte_memzone.h>
 #include <rte_eal.h>
 #include <rte_string_fns.h>
@@ -508,11 +509,54 @@  pci_find_device(rte_dev_cmp_t cmp,
 	return NULL;
 }
 
+static struct rte_device *
+pci_plug(struct rte_devargs *da)
+{
+	struct rte_pci_device *pdev;
+	struct rte_pci_addr *addr;
+
+	addr = &da->pci.addr;
+	/*
+	 * Update eventual pci device in global list.
+	 * Insert it if none was found.
+	 */
+	if (pci_update_device(addr) < 0) {
+		rte_errno = EIO;
+		return NULL;
+	}
+	/* Find the current device holding this address in the bus. */
+	FOREACH_DEVICE_ON_PCIBUS(pdev) {
+		if (rte_eal_compare_pci_addr(&pdev->addr, addr) == 0) {
+			if (rte_pci_probe_one(addr) != 0) {
+				rte_errno = ENODEV;
+				return NULL;
+			}
+			break;
+		}
+	}
+	return (pdev != NULL) ? &pdev->device : NULL;
+}
+
+static int
+pci_unplug(struct rte_device *dev)
+{
+	struct rte_pci_device *pdev;
+
+	pdev = RTE_DEV_TO_PCI(dev);
+	if (rte_pci_detach(&pdev->addr) != 0) {
+		rte_errno = ENODEV;
+		return -1;
+	}
+	return 0;
+}
+
 struct rte_pci_bus rte_pci_bus = {
 	.bus = {
 		.scan = rte_pci_scan,
 		.probe = rte_pci_probe,
 		.find_device = pci_find_device,
+		.plug = pci_plug,
+		.unplug = pci_unplug,
 	},
 	.device_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.device_list),
 	.driver_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.driver_list),