/*****************************************************************************
*
* ip_phyCheckStatusChange -- checks for significant changes in PHY state.
*
* A "significant change" is:
* dropped link (e.g. ethernet cable unplugged) OR
* autonegotiation completed + link (e.g. ethernet cable plugged in)
*/
void
ip_phyCheckStatusChange(int ethUnit)
{
int phyUnit;
UINT16 phyHwStatus;
ipPhyInfo_t *lastStatus;
int linkCount = 0;
int lostLinks = 0;
int gainedLinks = 0;
UINT32 phyBase;
UINT32 phyAddr;
for (phyUnit=0; phyUnit < IP_PHY_MAX; phyUnit++) {
if (!IP_IS_ETHUNIT(phyUnit, ethUnit)) {
continue;
}
phyBase = IP_PHYBASE(phyUnit);
phyAddr = IP_PHYADDR(phyUnit);
lastStatus = &ipPhyInfo[phyUnit];
phyHwStatus = phyRegRead(phyBase, phyAddr, IP_PHY_STATUS);
if (lastStatus->isPhyAlive) { /* last known link status was ALIVE */
/* See if we've lost link */
if (phyHwStatus & IP_STATUS_LINK_PASS) {
linkCount++;
} else {
lostLinks++;
#ifdef COBRA_TODO
mv_flushATUDB(phyUnit);
#endif
DRV_PRINT(DRV_DEBUG_PHYCHANGE,("\nenet%d port%d down\n",
ethUnit, phyUnit));
lastStatus->isPhyAlive = FALSE;
}
} else { /* last known link status was DEAD */
/* Check for AutoNegotiation complete */
if (IP_AUTONEG_DONE(phyHwStatus)) {
gainedLinks++;
linkCount++;
DRV_PRINT(DRV_DEBUG_PHYCHANGE,("\nenet%d port%d up\n",
ethUnit, phyUnit));
lastStatus->isPhyAlive = TRUE;
}
}
}
if (linkCount == 0) {
if (lostLinks) {
/* We just lost the last link for this MAC */
ae_unitLinkLost(ethUnit);
}
} else {
if (gainedLinks == linkCount) {
/* We just gained our first link(s) for this MAC */
ae_unitLinkGained(ethUnit);
}
}
}
/*****************************************************************************
*
* mv_phyCheckStatusChange -- checks for significant changes in PHY state.
*
* A "significant change" is:
* dropped link (e.g. ethernet cable unplugged) OR
* autonegotiation completed + link (e.g. ethernet cable plugged in)
*/
void
mv_phyCheckStatusChange(int ethUnit)
{
int phyUnit;
UINT16 phyHwStatus;
mvPhyInfo_t *lastStatus;
int linkCount = 0;
int lostLinks = 0;
int gainedLinks = 0;
UINT32 phyBase;
UINT32 phyAddr;
for (phyUnit=0; phyUnit < MV_PHY_MAX; phyUnit++) {
if (!MV_IS_ETHUNIT(phyUnit, ethUnit)) {
continue;
}
phyBase = MV_PHYBASE(phyUnit);
phyAddr = MV_PHYADDR(phyUnit);
lastStatus = &mvPhyInfo[phyUnit];
phyHwStatus = phyRegRead(phyBase, phyAddr, MV_PHY_SPECIFIC_STATUS);
if (lastStatus->isPhyAlive) { /* last known link status was ALIVE */
/* See if we've lost link */
if (phyHwStatus & MV_STATUS_REAL_TIME_LINK_UP) {
linkCount++;
} else {
lostLinks++;
mv_flushATUDB(phyUnit);
MV_PRINT(MV_DEBUG_PHYCHANGE,("\neth%d port%d down\n",
ethUnit, phyUnit));
lastStatus->isPhyAlive = FALSE;
}
} else { /* last known link status was DEAD */
/* Check for AutoNegotiation complete */
if (MV_AUTONEG_DONE(phyHwStatus)) {
gainedLinks++;
linkCount++;
MV_PRINT(MV_DEBUG_PHYCHANGE,("\neth%d port%d up\n",
ethUnit, phyUnit));
lastStatus->isPhyAlive = TRUE;
}
}
}
if (linkCount == 0) {
if (lostLinks) {
/* We just lost the last link for this MAC */
phyLinkLost(ethUnit);
}
} else {
if (gainedLinks == linkCount) {
/* We just gained our first link(s) for this MAC */
phyLinkGained(ethUnit);
}
}
}
int
adm_phyIsUp(int ethUnit)
{
int phyUnit;
uint16_t phyHwStatus;
admPhyInfo_t *lastStatus;
int linkCount = 0;
int lostLinks = 0;
int gainedLinks = 0;
uint32_t phyBase;
uint32_t phyAddr;
for (phyUnit=0; phyUnit < ADM_PHY_MAX; phyUnit++) {
if (!ADM_IS_ETHUNIT(phyUnit, ethUnit)) {
continue;
}
phyBase = ADM_PHYBASE(phyUnit);
phyAddr = ADM_PHYADDR(phyUnit);
lastStatus = &admPhyInfo[phyUnit];
phyHwStatus = phy_reg_read(phyBase, phyAddr, ADM_PHY_STATUS);
if (lastStatus->isPhyAlive) { /* last known link status was ALIVE */
/* See if we've lost link */
if (phyHwStatus & ADM_STATUS_LINK_PASS) {
linkCount++;
} else {
lostLinks++;
#ifdef COBRA_TODO
mv_flushATUDB(phyUnit);
#endif
DRV_PRINT(DRV_DEBUG_PHYCHANGE,("\nenet%d port%d down\n",
ethUnit, phyUnit));
lastStatus->isPhyAlive = FALSE;
}
} else { /* last known link status was DEAD */
/* Check for AutoNegotiation complete */
if (ADM_AUTONEG_DONE(phyHwStatus)) {
//printk("autoneg done\n");
gainedLinks++;
linkCount++;
DRV_PRINT(DRV_DEBUG_PHYCHANGE,("\nenet%d port%d up\n",
ethUnit, phyUnit));
lastStatus->isPhyAlive = TRUE;
}
}
}
return (linkCount);
#if 0
if (linkCount == 0) {
if (lostLinks) {
/* We just lost the last link for this MAC */
phyLinkLost(ethUnit);
}
} else {
if (gainedLinks == linkCount) {
/* We just gained our first link(s) for this MAC */
phyLinkGained(ethUnit);
}
}
#endif
}
