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port: share init code, peer delay code, and helpers 

This patch makes a number of subroutines into global functions in order
to share code with the TC implementations to come.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
master
Richard Cochran 2015-11-02 04:15:31 +01:00
parent d87bb60712
commit 46acbcee42
2 changed files with 46 additions and 23 deletions
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44
port.c
View File

@ -51,8 +51,6 @@ enum syfu_event {
FUP_MATCH,
};
#define portnum(p) (p->portIdentity.portNumber)
static void flush_delay_req(struct port *p);
static int port_capable(struct port *p);
static int port_is_ieee8021as(struct port *p);
@ -84,7 +82,7 @@ static void announce_to_dataset(struct ptp_message *m, struct port *p,
out->receiver = p->portIdentity;
}
static int clear_fault_asap(struct fault_interval *faint)
int clear_fault_asap(struct fault_interval *faint)
{
switch (faint->type) {
case FTMO_LINEAR_SECONDS:
@ -148,12 +146,12 @@ static int msg_source_equal(struct ptp_message *m1, struct foreign_clock *fc)
return 0 == memcmp(id1, id2, sizeof(*id1));
}
static int pid_eq(struct PortIdentity *a, struct PortIdentity *b)
int pid_eq(struct PortIdentity *a, struct PortIdentity *b)
{
return 0 == memcmp(a, b, sizeof(*a));
}
static int source_pid_eq(struct ptp_message *m1, struct ptp_message *m2)
int source_pid_eq(struct ptp_message *m1, struct ptp_message *m2)
{
return pid_eq(&m1->header.sourcePortIdentity,
&m2->header.sourcePortIdentity);
@ -252,7 +250,7 @@ int port_set_fault_timer_lin(struct port *port, int seconds)
return set_tmo_lin(port->fault_fd, seconds);
}
static void fc_clear(struct foreign_clock *fc)
void fc_clear(struct foreign_clock *fc)
{
struct ptp_message *m;
@ -314,7 +312,7 @@ static void delay_req_prune(struct port *p)
}
}
static void ts_add(tmv_t *ts, Integer64 correction)
void ts_add(tmv_t *ts, Integer64 correction)
{
if (!correction) {
return;
@ -645,7 +643,7 @@ not_capable:
return 0;
}
static int port_clr_tmo(int fd)
int port_clr_tmo(int fd)
{
struct itimerspec tmo = {
{0, 0}, {0, 0}
@ -1021,14 +1019,14 @@ static void port_nrate_initialize(struct port *p)
p->nrate.ratio_valid = 0;
}
static int port_set_announce_tmo(struct port *p)
int port_set_announce_tmo(struct port *p)
{
return set_tmo_random(p->fda.fd[FD_ANNOUNCE_TIMER],
p->announceReceiptTimeout,
p->announce_span, p->logAnnounceInterval);
}
static int port_set_delay_tmo(struct port *p)
int port_set_delay_tmo(struct port *p)
{
if (p->delayMechanism == DM_P2P) {
return set_tmo_log(p->fda.fd[FD_DELAY_TIMER], 1,
@ -1061,8 +1059,8 @@ static int port_set_sync_tx_tmo(struct port *p)
return set_tmo_log(p->fda.fd[FD_SYNC_TX_TIMER], 1, p->logSyncInterval);
}
static void port_show_transition(struct port *p,
enum port_state next, enum fsm_event event)
void port_show_transition(struct port *p, enum port_state next,
enum fsm_event event)
{
if (event == EV_FAULT_DETECTED) {
pr_notice("port %hu: %s to %s on %s (%s)", portnum(p),
@ -1251,7 +1249,7 @@ out:
return -1;
}
static int port_delay_request(struct port *p)
int port_delay_request(struct port *p)
{
struct ptp_message *msg;
@ -1460,7 +1458,7 @@ out:
/*
* port initialize and disable
*/
static int port_is_enabled(struct port *p)
int port_is_enabled(struct port *p)
{
switch (p->state) {
case PS_INITIALIZING:
@ -1520,7 +1518,7 @@ static void port_clear_fda(struct port *p, int count)
p->fda.fd[i] = -1;
}
static void port_disable(struct port *p)
void port_disable(struct port *p)
{
int i;
@ -1541,7 +1539,7 @@ static void port_disable(struct port *p)
clock_fda_changed(p->clock);
}
static int port_initialize(struct port *p)
int port_initialize(struct port *p)
{
struct config *cfg = clock_config(p->clock);
int fd[N_TIMER_FDS], i;
@ -1670,7 +1668,7 @@ struct dataset *port_best_foreign(struct port *port)
/*
* Returns non-zero if the announce message is both qualified and different.
*/
static int process_announce(struct port *p, struct ptp_message *m)
int process_announce(struct port *p, struct ptp_message *m)
{
int result = 0;
@ -1817,7 +1815,7 @@ static void process_delay_resp(struct port *p, struct ptp_message *m)
port_set_delay_tmo(p);
}
static void process_follow_up(struct port *p, struct ptp_message *m)
void process_follow_up(struct port *p, struct ptp_message *m)
{
enum syfu_event event;
struct PortIdentity master;
@ -1855,7 +1853,7 @@ static void process_follow_up(struct port *p, struct ptp_message *m)
port_syfufsm(p, event, m);
}
static int process_pdelay_req(struct port *p, struct ptp_message *m)
int process_pdelay_req(struct port *p, struct ptp_message *m)
{
struct ptp_message *rsp, *fup;
int err, event;
@ -2046,7 +2044,7 @@ calc:
p->peer_delay_req = NULL;
}
static int process_pdelay_resp(struct port *p, struct ptp_message *m)
int process_pdelay_resp(struct port *p, struct ptp_message *m)
{
if (p->peer_delay_resp) {
if (!source_pid_eq(p->peer_delay_resp, m)) {
@ -2090,7 +2088,7 @@ static int process_pdelay_resp(struct port *p, struct ptp_message *m)
return 0;
}
static void process_pdelay_resp_fup(struct port *p, struct ptp_message *m)
void process_pdelay_resp_fup(struct port *p, struct ptp_message *m)
{
if (!p->peer_delay_req)
return;
@ -2103,7 +2101,7 @@ static void process_pdelay_resp_fup(struct port *p, struct ptp_message *m)
port_peer_delay(p);
}
static void process_sync(struct port *p, struct ptp_message *m)
void process_sync(struct port *p, struct ptp_message *m)
{
enum syfu_event event;
struct PortIdentity master;
@ -2313,7 +2311,7 @@ static void bc_dispatch(struct port *p, enum fsm_event event, int mdiff)
}
}
static void port_link_status(void *ctx, int linkup, int ts_index)
void port_link_status(void *ctx, int linkup, int ts_index)
{
struct port *p = ctx;
int link_state;

25
port_private.h
View File

@ -22,6 +22,7 @@
#include <sys/queue.h>
#include "clock.h"
#include "fsm.h"
#include "msg.h"
#include "tmv.h"
@ -121,4 +122,28 @@ struct port {
LIST_HEAD(fm, foreign_clock) foreign_masters;
};
#define portnum(p) (p->portIdentity.portNumber)
int clear_fault_asap(struct fault_interval *faint);
void fc_clear(struct foreign_clock *fc);
int port_clr_tmo(int fd);
int port_delay_request(struct port *p);
void port_disable(struct port *p);
int port_initialize(struct port *p);
int port_is_enabled(struct port *p);
void port_link_status(void *ctx, int index, int linkup);
int port_set_announce_tmo(struct port *p);
int port_set_delay_tmo(struct port *p);
void port_show_transition(struct port *p, enum port_state next,
enum fsm_event event);
int process_announce(struct port *p, struct ptp_message *m);
void process_follow_up(struct port *p, struct ptp_message *m);
int process_pdelay_req(struct port *p, struct ptp_message *m);
int process_pdelay_resp(struct port *p, struct ptp_message *m);
void process_pdelay_resp_fup(struct port *p, struct ptp_message *m);
void process_sync(struct port *p, struct ptp_message *m);
int pid_eq(struct PortIdentity *a, struct PortIdentity *b);
int source_pid_eq(struct ptp_message *m1, struct ptp_message *m2);
void ts_add(tmv_t *ts, Integer64 correction);
#endif