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From: Wei Huang <wei.huang@intel.com>
To: dev@dpdk.org,
thomas@monjalon.net,
david.marchand@redhat.com
Cc: stable@dpdk.org, rosen.xu@intel.com, tianfei.zhang@intel.com,
qi.z.zhang@intel.com, Wei Huang <wei.huang@intel.com>
Subject: [PATCH v1] bus/ifpga: add fpga bus cleanup
Date: Thu, 16 Mar 2023 16:44:34 -0400
Message-Id: <20230316204434.360283-1-wei.huang@intel.com>
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In this patch, cleanup method is implemented for FPGA bus
which will be called during eal_bus_cleanup().
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/bus/ifpga/ifpga_bus.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/drivers/bus/ifpga/ifpga_bus.c b/drivers/bus/ifpga/ifpga_bus.c
index 07e316b..ffb0c61 100644
--- a/drivers/bus/ifpga/ifpga_bus.c
+++ b/drivers/bus/ifpga/ifpga_bus.c
@@ -360,6 +360,41 @@ struct rte_afu_device *
return ret;
}
+/*
+ * Cleanup the content of the Intel FPGA bus, and call the remove() function
+ * for all registered devices.
+ */
+static int
+ifpga_cleanup(void)
+{
+ struct rte_afu_device *afu_dev, *tmp_dev;
+ int error = 0;
+
+ RTE_TAILQ_FOREACH_SAFE(afu_dev, &ifpga_afu_dev_list, next, tmp_dev) {
+ struct rte_afu_driver *drv = afu_dev->driver;
+ int ret = 0;
+
+ if (drv == NULL || drv->remove == NULL)
+ goto free;
+
+ ret = drv->remove(afu_dev);
+ if (ret < 0) {
+ rte_errno = errno;
+ error = -1;
+ }
+ afu_dev->driver = NULL;
+ afu_dev->device.driver = NULL;
+
+free:
+ TAILQ_REMOVE(&ifpga_afu_dev_list, afu_dev, next);
+ rte_devargs_remove(afu_dev->device.devargs);
+ rte_intr_instance_free(afu_dev->intr_handle);
+ free(afu_dev);
+ }
+
+ return error;
+}
+
static int
ifpga_plug(struct rte_device *dev)
{
@@ -470,6 +505,7 @@ struct rte_afu_device *
static struct rte_bus rte_ifpga_bus = {
.scan = ifpga_scan,
.probe = ifpga_probe,
+ .cleanup = ifpga_cleanup,
.find_device = ifpga_find_device,
.plug = ifpga_plug,
.unplug = ifpga_unplug,
--
1.8.3.1