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Commit 4117ab03 authored by Subash Abhinov Kasiviswanathan's avatar Subash Abhinov Kasiviswanathan Committed by Gerrit - the friendly Code Review server
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soc: qcom: wda: Power Save cb support 



Added Power save mode indication registration.
Modules should be able to be notified when rmnet is
going into ps mode.

CRs-Fixed: 2316002
Change-Id: I0b11e4aa6595d51b7421e3cc0acbab4bf13dd18a
Acked-by: default avatarRaul Martinez <mraul@qti.qualcomm.com>
Signed-off-by: default avatarSubash Abhinov Kasiviswanathan <subashab@codeaurora.org>
parent 24811cd3

drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c

+7 −0
Original line number Diff line number Diff line
@@ -605,6 +605,13 @@ void rmnet_enable_all_flows(void *port) 
}

EXPORT_SYMBOL(rmnet_enable_all_flows);



int rmnet_get_powersave_notif(void *port)

{

	if (!port)

		return 0;

	return ((struct rmnet_port *)port)->data_format & RMNET_FORMAT_PS_NOTIF;

}

EXPORT_SYMBOL(rmnet_get_powersave_notif);

#endif



/* Startup/Shutdown */

drivers/net/ethernet/qualcomm/rmnet/rmnet_private.h

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 


/* Power save feature*/

#define RMNET_INGRESS_FORMAT_PS                 BIT(27)

#define RMNET_FORMAT_PS_NOTIF                   BIT(26)



/* Replace skb->dev to a virtual rmnet device and pass up the stack */

#define RMNET_EPMODE_VND (1)

drivers/soc/qcom/qmi_rmnet.c

+62 −1
Original line number Diff line number Diff line
@@ -658,6 +658,7 @@ EXPORT_SYMBOL(qmi_rmnet_qos_exit); 
#ifdef CONFIG_QCOM_QMI_POWER_COLLAPSE

static struct workqueue_struct  *rmnet_ps_wq;

static struct rmnet_powersave_work *rmnet_work;

static struct list_head ps_list;



struct rmnet_powersave_work {

	struct delayed_work work;
@@ -666,6 +667,58 @@ struct rmnet_powersave_work { 
	u64 old_tx_pkts;

};



void qmi_rmnet_ps_on_notify(void *port)

{

	struct qmi_rmnet_ps_ind *tmp;



	list_for_each_entry(tmp, &ps_list, list)

		tmp->ps_on_handler(port);

}

EXPORT_SYMBOL(qmi_rmnet_ps_on_notify);



void qmi_rmnet_ps_off_notify(void *port)

{

	struct qmi_rmnet_ps_ind *tmp;



	list_for_each_entry(tmp, &ps_list, list)

		tmp->ps_off_handler(port);

}

EXPORT_SYMBOL(qmi_rmnet_ps_off_notify);



int qmi_rmnet_ps_ind_register(void *port,

			      struct qmi_rmnet_ps_ind *ps_ind)

{



	if (!port || !ps_ind || !ps_ind->ps_on_handler ||

	    !ps_ind->ps_off_handler)

		return -EINVAL;



	list_add_rcu(&ps_ind->list, &ps_list);



	return 0;

}

EXPORT_SYMBOL(qmi_rmnet_ps_ind_register);



int qmi_rmnet_ps_ind_deregister(void *port,

				struct qmi_rmnet_ps_ind *ps_ind)

{

	struct qmi_rmnet_ps_ind *tmp;



	if (!port || !ps_ind)

		return -EINVAL;



	list_for_each_entry(tmp, &ps_list, list) {

		if (tmp == ps_ind) {

			list_del_rcu(&ps_ind->list);

			goto done;

		}

	}



done:

	return 0;

}

EXPORT_SYMBOL(qmi_rmnet_ps_ind_deregister);



int qmi_rmnet_set_powersave_mode(void *port, uint8_t enable)

{

	int rc = -EINVAL;
@@ -727,6 +780,11 @@ static void qmi_rmnet_check_stats(struct work_struct *work) 


		}

		qmi->ps_enabled = 0;



		if (rmnet_get_powersave_notif(real_work->port))

			qmi_rmnet_ps_off_notify(real_work->port);





		goto end;

	}
@@ -745,6 +803,9 @@ static void qmi_rmnet_check_stats(struct work_struct *work) 
		qmi->ps_enabled = 1;

		clear_bit(PS_WORK_ACTIVE_BIT, &qmi->ps_work_active);



		if (rmnet_get_powersave_notif(real_work->port))

			qmi_rmnet_ps_on_notify(real_work->port);



		return;

	}

end:
@@ -779,7 +840,7 @@ void qmi_rmnet_work_init(void *port) 
		rmnet_ps_wq = NULL;

		return;

	}



	INIT_LIST_HEAD(&ps_list);

	INIT_DEFERRABLE_WORK(&rmnet_work->work, qmi_rmnet_check_stats);

	rmnet_work->port = port;

	rmnet_get_packets(rmnet_work->port, &rmnet_work->old_rx_pkts,

include/soc/qcom/qmi_rmnet.h

+37 −0
Original line number Diff line number Diff line
@@ -17,6 +17,13 @@ 
#include <linux/netdevice.h>

#include <linux/skbuff.h>



struct qmi_rmnet_ps_ind {

	void (*ps_on_handler)(void *);

	void (*ps_off_handler)(void *);

	struct list_head list;

};





#ifdef CONFIG_QCOM_QMI_RMNET

void qmi_rmnet_qmi_exit(void *qmi_pt, void *port);

void qmi_rmnet_change_link(struct net_device *dev, void *port, void *tcm_pt);
@@ -72,6 +79,15 @@ int qmi_rmnet_set_powersave_mode(void *port, uint8_t enable); 
void qmi_rmnet_work_init(void *port);

void qmi_rmnet_work_exit(void *port);

void qmi_rmnet_work_maybe_restart(void *port);

void qmi_rmnet_work_restart(void *port);



int qmi_rmnet_ps_ind_register(void *port,

			      struct qmi_rmnet_ps_ind *ps_ind);

int qmi_rmnet_ps_ind_deregister(void *port,

				struct qmi_rmnet_ps_ind *ps_ind);

void qmi_rmnet_ps_off_notify(void *port);

void qmi_rmnet_ps_on_notify(void *port);



#else

static inline int qmi_rmnet_set_powersave_mode(void *port, uint8_t enable)

{
@@ -91,6 +107,27 @@ static inline void qmi_rmnet_work_exit(void *port) 
static inline void qmi_rmnet_work_maybe_restart(void *port)

{



}



static inline int qmi_rmnet_ps_ind_register(struct rmnet_port *port,

				     struct qmi_rmnet_ps_ind *ps_ind)

{

	return 0;

}

static inline int qmi_rmnet_ps_ind_deregister(struct rmnet_port *port,

				       struct qmi_rmnet_ps_ind *ps_ind)

{

	return 0;

}



static inline void qmi_rmnet_ps_off_notify(struct rmnet_port *port)

{



}



static inline void qmi_rmnet_ps_on_notify(struct rmnet_port *port)

{



}

#endif

#endif /*_QMI_RMNET_H*/

include/soc/qcom/rmnet_qmi.h

+6 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ void rmnet_enable_all_flows(void *port); 
void rmnet_set_powersave_format(void *port);

void rmnet_clear_powersave_format(void *port);

void rmnet_get_packets(void *port, u64 *rx, u64 *tx);

int rmnet_get_powersave_notif(void *port);

#else

static inline void *rmnet_get_qmi_pt(void *port)

{
@@ -72,5 +73,10 @@ static inline void rmnet_get_packets(void *port, u64 *rx, u64 *tx) 
{

}



static inline int rmnet_get_powersave_notif(void *port)

{

	return 0;

}



#endif /* CONFIG_QCOM_QMI_RMNET */

#endif /*_RMNET_QMI_H*/