void BcmPort::init(bool warmBoot) {
bool up = false;
if (warmBoot) {
// Get port status from HW on warm boot.
// All ports are initially down on a cold boot.
int linkStatus;
opennsl_port_link_status_get(unit_, port_, &linkStatus);
up = (linkStatus == OPENNSL_PORT_LINK_STATUS_UP);
} else {
// In open source code, we don't have any guarantees for the
// state of the port at startup. Bringing them down guarantees
// that things are in a known state.
//
// We should only be doing this on cold boot, since warm booting
// should be initializing the state for us.
auto rv = opennsl_port_enable_set(unit_, port_, false);
bcmCheckError(rv, "failed to set port to known state: ", port_);
}
// Notify platform port of initial state/speed
getPlatformPort()->linkSpeedChanged(getSpeed());
getPlatformPort()->linkStatusChanged(up, isEnabled());
enableLinkscan();
}
void BcmPort::init(bool warmBoot) {
bool up = false;
if (warmBoot) {
// Get port status from HW on warm boot.
// All ports are initially down on a cold boot.
int linkStatus;
opennsl_port_link_status_get(unit_, port_, &linkStatus);
up = (linkStatus == OPENNSL_PORT_LINK_STATUS_UP);
} else {
// In open source code, we don't have any guarantees for the
// state of the port at startup. Bringing them down guarantees
// that things are in a known state.
//
// We should only be doing this on cold boot, since warm booting
// should be initializing the state for us.
auto rv = opennsl_port_enable_set(unit_, port_, false);
bcmCheckError(rv, "failed to set port to known state: ", port_);
}
setPortStatus(up);
// Linkscan should be enabled if the port is enabled already
auto linkscan = isEnabled() ? OPENNSL_LINKSCAN_MODE_SW :
OPENNSL_LINKSCAN_MODE_NONE;
auto rv = opennsl_linkscan_mode_set(unit_, port_, linkscan);
bcmCheckError(rv, "failed to set initial linkscan mode on port ", port_);
}
void BcmPort::disable(const std::shared_ptr<Port>& swPort) {
if (!isEnabled()) {
// Already disabled
return;
}
auto pbmp = getPbmp();
for (auto entry : swPort->getVlans()) {
auto rv = opennsl_vlan_port_remove(unit_, entry.first, pbmp);
bcmCheckError(rv, "failed to remove disabled port ",
swPort->getID(), " from VLAN ", entry.first);
}
// Disable packet and byte counter statistic collection.
auto rv = opennsl_port_stat_enable_set(unit_, gport_, false);
bcmCheckError(rv, "Unexpected error disabling counter DMA on port ",
swPort->getID());
// Disable linkscan
rv = opennsl_linkscan_mode_set(unit_, port_, OPENNSL_LINKSCAN_MODE_NONE);
bcmCheckError(rv, "Failed to disable linkscan on port ", swPort->getID());
rv = opennsl_port_enable_set(unit_, port_, false);
bcmCheckError(rv, "failed to disable port ", swPort->getID());
}
void BcmPort::enable(const std::shared_ptr<Port>& swPort) {
if (isEnabled()) {
// Port is already enabled, don't need to do anything
return;
}
auto pbmp = getPbmp();
opennsl_pbmp_t emptyPortList;
OPENNSL_PBMP_CLEAR(emptyPortList);
int rv;
for (auto entry : swPort->getVlans()) {
if (!entry.second.tagged) {
rv = opennsl_vlan_port_add(unit_, entry.first, pbmp, pbmp);
} else {
rv = opennsl_vlan_port_add(unit_, entry.first, pbmp, emptyPortList);
}
bcmCheckError(rv, "failed to add enabled port ",
swPort->getID(), " to VLAN ", entry.first);
}
// Drop packets to/from this port that are tagged with a VLAN that this
// port isn't a member of.
rv = opennsl_port_vlan_member_set(unit_, port_,
OPENNSL_PORT_VLAN_MEMBER_INGRESS |
OPENNSL_PORT_VLAN_MEMBER_EGRESS);
bcmCheckError(rv, "failed to set VLAN filtering on port ",
swPort->getID());
// Set the speed and ingress vlan before enabling
program(swPort);
// Enable packet and byte counter statistic collection.
rv = opennsl_port_stat_enable_set(unit_, gport_, true);
if (rv != OPENNSL_E_EXISTS) {
// Don't throw an error if counter collection is already enabled
bcmCheckError(rv, "Unexpected error enabling counter DMA on port ",
swPort->getID());
}
// Enable linkscan
rv = opennsl_linkscan_mode_set(unit_, port_, OPENNSL_LINKSCAN_MODE_SW);
bcmCheckError(rv, "Failed to enable linkscan on port ", swPort->getID());
rv = opennsl_port_enable_set(unit_, port_, true);
bcmCheckError(rv, "failed to enable port ", swPort->getID());
}