soc: fsl: qbman: allow registering a device link for the portal user (a2d00f3d) · Commits · 戴 / test

drivers/soc/fsl/qbman/qman.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -1749,6 +1749,19 @@ struct qman_portal *qman_get_affine_portal(int cpu)
		}
		EXPORT_SYMBOL(qman_get_affine_portal);

		int qman_start_using_portal(struct qman_portal p, struct device dev)
		{
		return (!device_link_add(dev, p->config->dev,
		DL_FLAG_AUTOREMOVE_CONSUMER)) ? -EINVAL : 0;
		}
		EXPORT_SYMBOL(qman_start_using_portal);

		void qman_stop_using_portal(struct qman_portal p, struct device dev)
		{
		device_link_remove(dev, p->config->dev);
		}
		EXPORT_SYMBOL(qman_stop_using_portal);

		int qman_p_poll_dqrr(struct qman_portal *p, unsigned int limit)
		{
		return __poll_portal_fast(p, limit);

+18 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@
		#define __FSL_QMAN_H

		#include <linux/bitops.h>
		#include <linux/device.h>

		/* Hardware constants */
		#define QM_CHANNEL_SWPORTAL0 0
		@@ -914,6 +915,23 @@ u16 qman_affine_channel(int cpu);
		*/
		struct qman_portal *qman_get_affine_portal(int cpu);

		/**
		* qman_start_using_portal - register a device link for the portal user
		* @p: the portal that will be in use
		* @dev: the device that will use the portal
		*
		* Makes sure that the devices that use the portal are unbound when the
		* portal is unbound
		*/
		int qman_start_using_portal(struct qman_portal p, struct device dev);

		/**
		* qman_stop_using_portal - deregister a device link for the portal user
		* @p: the portal that will no longer be in use
		* @dev: the device that uses the portal
		*/
		void qman_stop_using_portal(struct qman_portal p, struct device dev);

		/**
		* qman_p_poll_dqrr - process DQRR (fast-path) entries
		* @limit: the maximum number of DQRR entries to process