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From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: <dev@dpdk.org>
CC: <bruce.richardson@intel.com>, <hemant.agrawal@nxp.com>,
<gage.eads@intel.com>, <harry.van.haaren@intel.com>, Jerin Jacob
<jerin.jacob@caviumnetworks.com>
Date: Mon, 6 Feb 2017 10:53:38 +0530
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Subject: [dpdk-dev] [PATCH 2/4] evendev: add vdev uninit support
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X-List-Received-Date: Mon, 06 Feb 2017 05:24:26 -0000
Added eventdev vdev uninit support to release the resources
allocated in eventdev vdev init.
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---
lib/librte_eventdev/rte_eventdev.c | 43 +++++++++++++++++++++++++---
lib/librte_eventdev/rte_eventdev_pmd.h | 12 +++++++-
lib/librte_eventdev/rte_eventdev_version.map | 1 +
3 files changed, 51 insertions(+), 5 deletions(-)
diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
index 2b39fb2..09fc274 100644
--- a/lib/librte_eventdev/rte_eventdev.c
+++ b/lib/librte_eventdev/rte_eventdev.c
@@ -1143,6 +1143,8 @@ int
rte_event_pmd_release(struct rte_eventdev *eventdev)
{
int ret;
+ char mz_name[RTE_EVENTDEV_NAME_MAX_LEN];
+ const struct rte_memzone *mz;
if (eventdev == NULL)
return -EINVAL;
@@ -1153,8 +1155,26 @@ rte_event_pmd_release(struct rte_eventdev *eventdev)
eventdev->attached = RTE_EVENTDEV_DETACHED;
eventdev_globals.nb_devs--;
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ rte_free(eventdev->data->dev_private);
+
+ /* Generate memzone name */
+ ret = snprintf(mz_name, sizeof(mz_name), "rte_eventdev_data_%u",
+ eventdev->data->dev_id);
+ if (ret >= (int)sizeof(mz_name))
+ return -EINVAL;
+
+ mz = rte_memzone_lookup(mz_name);
+ if (mz == NULL)
+ return -ENOMEM;
+
+ ret = rte_memzone_free(mz);
+ if (ret)
+ return ret;
+ }
+
eventdev->data = NULL;
-
return 0;
}
@@ -1186,6 +1206,24 @@ rte_event_pmd_vdev_init(const char *name, size_t dev_private_size,
}
int
+rte_event_pmd_vdev_uninit(const char *name)
+{
+ struct rte_eventdev *eventdev;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ eventdev = rte_event_pmd_get_named_dev(name);
+ if (eventdev == NULL)
+ return -ENODEV;
+
+ /* Free the event device */
+ rte_event_pmd_release(eventdev);
+
+ return 0;
+}
+
+int
rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv,
struct rte_pci_device *pci_dev)
{
@@ -1275,9 +1313,6 @@ rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev)
/* Free event device */
rte_event_pmd_release(eventdev);
- if (rte_eal_process_type() == RTE_PROC_PRIMARY)
- rte_free(eventdev->data->dev_private);
-
eventdev->pci_dev = NULL;
eventdev->driver = NULL;
diff --git a/lib/librte_eventdev/rte_eventdev_pmd.h b/lib/librte_eventdev/rte_eventdev_pmd.h
index 4eea618..be5c784 100644
--- a/lib/librte_eventdev/rte_eventdev_pmd.h
+++ b/lib/librte_eventdev/rte_eventdev_pmd.h
@@ -198,7 +198,7 @@ rte_event_pmd_is_valid_dev(uint8_t dev_id)
{
struct rte_eventdev *dev;
- if (dev_id >= rte_eventdev_globals->nb_devs)
+ if (dev_id >= RTE_EVENT_MAX_DEVS)
return 0;
dev = &rte_eventdevs[dev_id];
@@ -552,6 +552,16 @@ struct rte_eventdev *
rte_event_pmd_vdev_init(const char *name, size_t dev_private_size,
int socket_id);
+/**
+ * Destroy the given virtual event device
+ *
+ * @param name
+ * PMD type name
+ * @return
+ * - 0 on success, negative on error
+ */
+int
+rte_event_pmd_vdev_uninit(const char *name);
/**
* Wrapper for use by pci drivers as a .probe function to attach to a event
diff --git a/lib/librte_eventdev/rte_eventdev_version.map b/lib/librte_eventdev/rte_eventdev_version.map
index b138eb3..c572c4d 100644
--- a/lib/librte_eventdev/rte_eventdev_version.map
+++ b/lib/librte_eventdev/rte_eventdev_version.map
@@ -35,6 +35,7 @@ DPDK_17.02 {
rte_event_pmd_allocate;
rte_event_pmd_release;
rte_event_pmd_vdev_init;
+ rte_event_pmd_vdev_uninit;
rte_event_pmd_pci_probe;
rte_event_pmd_pci_remove;
--
2.5.5