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Commit f1919aa4 authored by Linux Build Service Account's avatar Linux Build Service Account
Browse files

Promotion of wigig.lnx.1.0.c6-00003. 

CRs      Change ID                                   Subject
--------------------------------------------------------------------------------------------------------------
2031295   I16c0d18bf9e855f7996a2e8639f17ac090c40673   fstman: set FST link loss configuration on/off in differ

Change-Id: Ie26d7038eace35f3edab8a9e1ce24db42d6afb53
CRs-Fixed: 2031295
parents ec044cda c6415c92

fst_manager.c

+100 −14
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ 
#include "fst_cfgmgr.h"

#define FST_MGR_COMPONENT "MGR"

#include "fst_manager.h"

#include <stdbool.h>



#define FST_LLT_SWITCH_IMMEDIATELY 0

#define LLT_UNIT_US        32 /* See 10.32.2.2  Transitioning between states */
@@ -332,6 +333,78 @@ static int _fst_mgr_session_transfer(struct fst_mgr_session *s) 
	return 0;

}



static struct fst_mgr_peer *

_fst_mgr_group_peer_by_session(struct fst_mgr_group *g,

			       struct fst_mgr_session *s)

{

	struct fst_mgr_peer *p;



	_fst_grp_foreach_peer(g, p)

		if (p->session == s)

			return p;



	return NULL;

}



static int

_fst_mgr_set_link_loss(const char *ifname, const u8 *addr, bool fst_link_loss)

{

	char fname[128];

	FILE *f;



	if (ifname == NULL)

		return -1;



	if (snprintf(fname, sizeof(fname), "/sys/class/net/%s/device/wil6210/fst_link_loss",

		     ifname) < 0)

		return -1;



	f = fopen(fname, "r+");

	if (!f) {

		fst_mgr_printf(MSG_ERROR, "failed to open: %s", fname);

		return -1;

	}



	if (fprintf(f, MACSTR " %d\n", MAC2STR(addr), fst_link_loss) < 0) {

		fclose(f);

		return -1;

	}

	fclose(f);



	return 0;

}



static void

_fst_mgr_session_set_link_loss(struct fst_mgr_session *s, bool fst_link_loss)

{

	int ret;

	struct fst_mgr_peer *p = NULL;

	struct fst_mgr_peer_iface *pi;



	p = _fst_mgr_group_peer_by_session(s->group, s);

	if (!p) {

		fst_mgr_printf(MSG_WARNING, "couldn't find peer");

		return;

	}



	_fst_peer_foreach_iface(p, pi) {

		if (pi->iface == s->old_iface) {

			ret = _fst_mgr_set_link_loss(s->old_iface->info.name,

						     pi->addr, fst_link_loss);

			if (ret < 0)

				fst_mgr_printf(MSG_WARNING, "failed to set fst link loss %s",

					       fst_link_loss ? "On" : "Off");

			else

				fst_mgr_printf(MSG_INFO, "fst link loss %s for peer "

					       MACSTR " iface %s",

					       fst_link_loss ? "enabled" : "disabled",

					       MAC2STR(pi->addr),

					       s->old_iface->info.name);

			break;

		}

	}

}



static int _fst_mgr_session_respond(struct fst_mgr_session *s, Boolean accept)

{

	const char *responce_status =
@@ -346,6 +419,15 @@ static int _fst_mgr_session_respond(struct fst_mgr_session *s, Boolean accept) 
	s->state = accept ?

			FST_MGR_SESSION_STATE_ESTABLISHED :

			FST_MGR_SESSION_STATE_IDLE;



	if (accept && s->llt > 0)

		/*

		 * at this point the active interface is the one with highest

		 * priority and we have a backup interface. Set active interface

		 * to aggressive link loss detection for fast switching to

		 * backup once signal quality is low

		 */

		_fst_mgr_session_set_link_loss(s, true);

	return 0;

}
@@ -362,6 +444,14 @@ static void _fst_mgr_session_reset(struct fst_mgr_session *s, 


static void _fst_mgr_session_deinit(struct fst_mgr_session *s)

{

	if (s->llt > 0)

		/*

		 * at this point the active interface is the one with highest

		 * priority but backup interface is no longer available.

		 * Set active interface to default link loss behavior.

		 */

		_fst_mgr_session_set_link_loss(s, false);



	dl_list_del(&s->grp_lentry);

	fst_session_remove(s->id);

	os_free(s);
@@ -878,20 +968,6 @@ static Boolean _fst_mgr_is_peer_connected(struct fst_mgr_group *g, 
	return FALSE;

}



static struct fst_mgr_peer *

_fst_mgr_group_peer_by_session(struct fst_mgr_group *g,

		struct fst_mgr_session *s)

{

	struct fst_mgr_peer *p;



	_fst_grp_foreach_peer(g, p) {

		if (p->session == s)

			return p;

	}



	return NULL;

}



static void _fst_mgr_group_deinit(struct fst_mgr_group *g)

{

	fst_mux_stop(g->drv);
@@ -1429,6 +1505,16 @@ static void _fst_mgr_ctrl_notification_cb_func(void *cb_ctx, 
			fst_mgr_printf(MSG_WARNING, "session %u: established (initiator)",

					session_id);

			s->state = FST_MGR_SESSION_STATE_ESTABLISHED;



			if (s->llt > 0)

				/*

				 * at this point the active interface is the one

				 * with highest priority and we have a backup

				 * interface. Set active interface to aggressive

				 * link loss detection for fast switching to

				 * backup once signal quality is low.

				 */

				_fst_mgr_session_set_link_loss(s, true);

		}

		else

			fst_mgr_printf(MSG_ERROR, "Cannot find session object");