Commit 0f04338d authored by Weibo Zhao's avatar Weibo Zhao Committed by JiangShui
Browse files

hns3 udma: support of link status change 

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I85R2F


CVE: NA

-----------------------------------------------------------

UDMA driver would report a event if link status changed.
Driver set latest link status in event_type.

Signed-off-by: default avatarWeibo Zhao <zhaoweibo3@huawei.com>
parent 992594ce

drivers/ub/hw/hns3/hns3_udma_hw.c

+42 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/acpi.h>

#include <linux/module.h>

#include <linux/inetdevice.h>

#include "urma/ubcore_api.h"

#include "hnae3.h"

#include "hns3_udma_cmd.h"

#include "hns3_udma_hem.h"
@@ -1674,9 +1675,50 @@ static void udma_uninit_instance(struct hnae3_handle *handle, bool reset) 
	handle->udmainfo.instance_state = UDMA_STATE_NON_INIT;

}



static void udma_link_status_change(struct hnae3_handle *handle, bool linkup)

{

	struct net_device *net_dev;

	struct ubcore_event event;

	struct udma_dev *dev;

	uint32_t port_id;



	dev = handle->priv;



	if (IS_ERR_OR_NULL(dev)) {

		pr_err("[hns3-udma:link_status_change]: Invalid dev!\n");

		return;

	}



	for (port_id = 0; port_id < dev->caps.num_ports; port_id++) {

		net_dev = dev->uboe.netdevs[port_id];

		if (!net_dev) {

			dev_err(dev->dev, "Find netdev %u failed!\n", port_id);

			return;

		}



		if (net_dev == handle->udmainfo.netdev)

			break;

	}



	if (port_id == dev->caps.num_ports) {

		dev_err(dev->dev, "Cannot find netdev!\n");

		return;

	}



	if (linkup)

		event.event_type = UBCORE_EVENT_PORT_ACTIVE;

	else

		event.event_type = UBCORE_EVENT_PORT_ERR;



	event.ub_dev = &dev->ub_dev;

	event.element.port_id = port_id;

	ubcore_dispatch_async_event(&event);

}



static const struct hnae3_client_ops udma_ops = {

	.init_instance = udma_init_instance,

	.uninit_instance = udma_uninit_instance,

	.link_status_change = udma_link_status_change,

};



static struct hnae3_client udma_client = {