/**
*
* @controller: This is the controller object that receives the link down
* notification.
* @port: This is the port object associated with the phy. If the is no
* associated port this is an NULL. The port is an invalid
* handle only if the phy was never port of this port. This happens when
* the phy is not broadcasting the same SAS address as the other phys in the
* assigned port.
* @phy: This is the phy object which has gone link down.
*
* This function handles the manual port configuration link down notifications.
* Since all ports and phys are associated at initialization time we just turn
* around and notifiy the port object of the link down event. If this PHY is
* not associated with a port there is no action taken. Is it possible to get a
* link down notification from a phy that has no assocoated port?
*/
static void sci_mpc_agent_link_down(
struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent,
struct isci_port *iport,
struct isci_phy *iphy)
{
if (iport != NULL) {
/*
* If we can form a new port from the remainder of the phys
* then we want to start the timer to allow the SCI User to
* cleanup old devices and rediscover the port before
* rebuilding the port with the phys that remain in the ready
* state.
*/
port_agent->phy_ready_mask &= ~(1 << iphy->phy_index);
port_agent->phy_configured_mask &= ~(1 << iphy->phy_index);
/*
* Check to see if there are more phys waiting to be
* configured into a port. If there are allow the SCI User
* to tear down this port, if necessary, and then reconstruct
* the port after the timeout.
*/
if ((port_agent->phy_configured_mask == 0x0000) &&
(port_agent->phy_ready_mask != 0x0000) &&
!port_agent->timer_pending) {
port_agent->timer_pending = true;
sci_mod_timer(&port_agent->timer,
SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT);
}
sci_port_link_down(iport, iphy);
}
}
static void sci_mpc_agent_link_down(
struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent,
struct isci_port *iport,
struct isci_phy *iphy)
{
if (iport != NULL) {
port_agent->phy_ready_mask &= ~(1 << iphy->phy_index);
port_agent->phy_configured_mask &= ~(1 << iphy->phy_index);
if ((port_agent->phy_configured_mask == 0x0000) &&
(port_agent->phy_ready_mask != 0x0000) &&
!port_agent->timer_pending) {
port_agent->timer_pending = true;
sci_mod_timer(&port_agent->timer,
SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT);
}
sci_port_link_down(iport, iphy);
}
}
