static struct isci_port *sci_port_configuration_agent_find_port(
struct isci_host *ihost,
struct isci_phy *iphy)
{
u8 i;
struct sci_sas_address port_sas_address;
struct sci_sas_address port_attached_device_address;
struct sci_sas_address phy_sas_address;
struct sci_sas_address phy_attached_device_address;
sci_phy_get_sas_address(iphy, &phy_sas_address);
sci_phy_get_attached_sas_address(iphy, &phy_attached_device_address);
for (i = 0; i < ihost->logical_port_entries; i++) {
struct isci_port *iport = &ihost->ports[i];
sci_port_get_sas_address(iport, &port_sas_address);
sci_port_get_attached_sas_address(iport, &port_attached_device_address);
if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 &&
sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0)
return iport;
}
return NULL;
}
/**
*
* @controller: The controller object used for the port search.
* @phy: The phy object to match.
*
* This routine will find a matching port for the phy. This means that the
* port and phy both have the same broadcast sas address and same received sas
* address. The port address or the NULL if there is no matching
* port. port address if the port can be found to match the phy.
* NULL if there is no matching port for the phy.
*/
static struct isci_port *sci_port_configuration_agent_find_port(
struct isci_host *ihost,
struct isci_phy *iphy)
{
u8 i;
struct sci_sas_address port_sas_address;
struct sci_sas_address port_attached_device_address;
struct sci_sas_address phy_sas_address;
struct sci_sas_address phy_attached_device_address;
/*
* Since this phy can be a member of a wide port check to see if one or
* more phys match the sent and received SAS address as this phy in which
* case it should participate in the same port.
*/
sci_phy_get_sas_address(iphy, &phy_sas_address);
sci_phy_get_attached_sas_address(iphy, &phy_attached_device_address);
for (i = 0; i < ihost->logical_port_entries; i++) {
struct isci_port *iport = &ihost->ports[i];
sci_port_get_sas_address(iport, &port_sas_address);
sci_port_get_attached_sas_address(iport, &port_attached_device_address);
if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 &&
sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0)
return iport;
}
return NULL;
}
static enum sci_status sci_port_configuration_agent_validate_ports(
struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent)
{
struct sci_sas_address first_address;
struct sci_sas_address second_address;
if (port_agent->phy_valid_port_range[0].max_index != 0 ||
port_agent->phy_valid_port_range[1].max_index != 1 ||
port_agent->phy_valid_port_range[2].max_index != 2 ||
port_agent->phy_valid_port_range[3].max_index != 3)
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
if (port_agent->phy_valid_port_range[0].min_index == 0 &&
port_agent->phy_valid_port_range[1].min_index == 0 &&
port_agent->phy_valid_port_range[2].min_index == 0 &&
port_agent->phy_valid_port_range[3].min_index == 0)
return SCI_SUCCESS;
if (port_agent->phy_valid_port_range[2].min_index == 1) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
sci_phy_get_sas_address(&ihost->phys[0], &first_address);
sci_phy_get_sas_address(&ihost->phys[3], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
if (port_agent->phy_valid_port_range[0].min_index == 0 &&
port_agent->phy_valid_port_range[1].min_index == 1) {
sci_phy_get_sas_address(&ihost->phys[0], &first_address);
sci_phy_get_sas_address(&ihost->phys[2], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
}
if (port_agent->phy_valid_port_range[2].min_index == 2 &&
port_agent->phy_valid_port_range[3].min_index == 3) {
sci_phy_get_sas_address(&ihost->phys[1], &first_address);
sci_phy_get_sas_address(&ihost->phys[3], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
}
return SCI_SUCCESS;
}
/**
* This routine will find a matching port for the phy. This means that the
* port and phy both have the same broadcast sas address and same received
* sas address.
*
* @param[in] controller The controller object used for the port search.
* @param[in] phy The phy object to match.
*
* @return The port address or the SCI_INVALID_HANDLE if there is no matching
* port.
*
* @retvalue port address if the port can be found to match the phy.
* @retvalue SCI_INVALID_HANDLE if there is no matching port for the phy.
*/
static
SCIC_SDS_PORT_T * scic_sds_port_configuration_agent_find_port(
SCIC_SDS_CONTROLLER_T * controller,
SCIC_SDS_PHY_T * phy
)
{
U8 port_index;
SCI_PORT_HANDLE_T port_handle;
SCI_SAS_ADDRESS_T port_sas_address;
SCI_SAS_ADDRESS_T port_attached_device_address;
SCI_SAS_ADDRESS_T phy_sas_address;
SCI_SAS_ADDRESS_T phy_attached_device_address;
SCIC_LOG_TRACE((
sci_base_object_get_logger(controller),
SCIC_LOG_OBJECT_CONTROLLER | SCIC_LOG_OBJECT_PORT | SCIC_LOG_OBJECT_PHY,
"scic_sds_port_confgiruation_agent_find_port(0x%08x, 0x%08x) enter\n",
controller, phy
));
// Since this phy can be a member of a wide port check to see if one or
// more phys match the sent and received SAS address as this phy in which
// case it should participate in the same port.
scic_sds_phy_get_sas_address(phy, &phy_sas_address);
scic_sds_phy_get_attached_sas_address(phy, &phy_attached_device_address);
for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++)
{
if (scic_controller_get_port_handle(controller, port_index, &port_handle) == SCI_SUCCESS)
{
SCIC_SDS_PORT_T * port = (SCIC_SDS_PORT_T *)port_handle;
scic_sds_port_get_sas_address(port, &port_sas_address);
scic_sds_port_get_attached_sas_address(port, &port_attached_device_address);
if (
(sci_sas_address_compare(port_sas_address, phy_sas_address) == 0)
&& (sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0)
)
{
return port;
}
}
}
return SCI_INVALID_HANDLE;
}
/**
* This routine will verify that the phys are assigned a valid SAS address for
* automatic port configuration mode.
*/
static
SCI_STATUS scic_sds_apc_agent_validate_phy_configuration(
SCIC_SDS_CONTROLLER_T * controller,
SCIC_SDS_PORT_CONFIGURATION_AGENT_T * port_agent
)
{
U8 phy_index;
U8 port_index;
SCI_SAS_ADDRESS_T sas_address;
SCI_SAS_ADDRESS_T phy_assigned_address;
SCIC_LOG_TRACE((
sci_base_object_get_logger(controller),
SCIC_LOG_OBJECT_CONTROLLER | SCIC_LOG_OBJECT_PORT,
"scic_sds_apc_agent_validate_phy_configuration(0x%08x, 0x%08x) enter\n",
controller, port_agent
));
phy_index = 0;
while (phy_index < SCI_MAX_PHYS)
{
port_index = phy_index;
// Get the assigned SAS Address for the first PHY on the controller.
scic_sds_phy_get_sas_address(
&controller->phy_table[phy_index], &sas_address
);
while (++phy_index < SCI_MAX_PHYS)
{
scic_sds_phy_get_sas_address(
&controller->phy_table[phy_index], &phy_assigned_address
);
// Verify each of the SAS address are all the same for every PHY
if (sci_sas_address_compare(sas_address, phy_assigned_address) == 0)
{
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
}
else
{
port_agent->phy_valid_port_range[phy_index].min_index = phy_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
break;
}
}
}
return scic_sds_port_configuration_agent_validate_ports(controller, port_agent);
}
static enum sci_status
sci_apc_agent_validate_phy_configuration(struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent)
{
u8 phy_index;
u8 port_index;
struct sci_sas_address sas_address;
struct sci_sas_address phy_assigned_address;
phy_index = 0;
while (phy_index < SCI_MAX_PHYS) {
port_index = phy_index;
sci_phy_get_sas_address(&ihost->phys[phy_index],
&sas_address);
while (++phy_index < SCI_MAX_PHYS) {
sci_phy_get_sas_address(&ihost->phys[phy_index],
&phy_assigned_address);
if (sci_sas_address_compare(sas_address, phy_assigned_address) == 0) {
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
} else {
port_agent->phy_valid_port_range[phy_index].min_index = phy_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
break;
}
}
}
return sci_port_configuration_agent_validate_ports(ihost, port_agent);
}
/* verify phys are assigned a valid SAS address for automatic port
* configuration mode.
*/
static enum sci_status
sci_apc_agent_validate_phy_configuration(struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent)
{
u8 phy_index;
u8 port_index;
struct sci_sas_address sas_address;
struct sci_sas_address phy_assigned_address;
phy_index = 0;
while (phy_index < SCI_MAX_PHYS) {
port_index = phy_index;
/* Get the assigned SAS Address for the first PHY on the controller. */
sci_phy_get_sas_address(&ihost->phys[phy_index],
&sas_address);
while (++phy_index < SCI_MAX_PHYS) {
sci_phy_get_sas_address(&ihost->phys[phy_index],
&phy_assigned_address);
/* Verify each of the SAS address are all the same for every PHY */
if (sci_sas_address_compare(sas_address, phy_assigned_address) == 0) {
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
} else {
port_agent->phy_valid_port_range[phy_index].min_index = phy_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
break;
}
}
}
return sci_port_configuration_agent_validate_ports(ihost, port_agent);
}
/**
* This routine will verify that all of the phys in the same port are using
* the same SAS address.
*
* @param[in] controller This is the controller that contains the PHYs to
* be verified.
*/
static
SCI_STATUS scic_sds_mpc_agent_validate_phy_configuration(
SCIC_SDS_CONTROLLER_T * controller,
SCIC_SDS_PORT_CONFIGURATION_AGENT_T * port_agent
)
{
U32 phy_mask;
U32 assigned_phy_mask;
SCI_SAS_ADDRESS_T sas_address;
SCI_SAS_ADDRESS_T phy_assigned_address;
U8 port_index;
U8 phy_index;
assigned_phy_mask = 0;
sas_address.high = 0;
sas_address.low = 0;
SCIC_LOG_TRACE((
sci_base_object_get_logger(controller),
SCIC_LOG_OBJECT_CONTROLLER | SCIC_LOG_OBJECT_PORT,
"scic_sds_mpc_agent_validate_phy_configuration(0x%08x, 0x%08x) enter\n",
controller, port_agent
));
for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++)
{
phy_mask = controller->oem_parameters.sds1.ports[port_index].phy_mask;
if (phy_mask != 0)
{
// Make sure that one or more of the phys were not already assinged to
// a different port.
if ((phy_mask & ~assigned_phy_mask) == 0)
{
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
// Find the starting phy index for this round through the loop
for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++)
{
if ((1 << phy_index) & phy_mask)
{
scic_sds_phy_get_sas_address(
&controller->phy_table[phy_index], &sas_address
);
// The phy_index can be used as the starting point for the
// port range since the hardware starts all logical ports
// the same as the PE index.
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
if (phy_index != port_index)
{
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
break;
}
}
// See how many additional phys are being added to this logical port.
// Note: We have not moved the current phy_index so we will actually
// compare the startting phy with itself.
// This is expected and required to add the phy to the port.
while (phy_index < SCI_MAX_PHYS)
{
if ((1 << phy_index) & phy_mask)
{
scic_sds_phy_get_sas_address(
&controller->phy_table[phy_index], &phy_assigned_address
);
if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0)
{
// The phy mask specified that this phy is part of the same port
// as the starting phy and it is not so fail this configuration
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
scic_sds_port_add_phy(
&controller->port_table[port_index],
&controller->phy_table[phy_index]
);
assigned_phy_mask |= (1 << phy_index);
}
phy_index++;
}
}
}
return scic_sds_port_configuration_agent_validate_ports(controller, port_agent);
}
/**
* This routine will validate the port configuration is correct for the SCU
* hardware. The SCU hardware allows for port configurations as follows.
* LP0 -> (PE0), (PE0, PE1), (PE0, PE1, PE2, PE3)
* LP1 -> (PE1)
* LP2 -> (PE2), (PE2, PE3)
* LP3 -> (PE3)
*
* @param[in] controller This is the controller object that contains the
* port agent
* @param[in] port_agent This is the port configruation agent for
* the controller.
*
* @return SCI_STATUS
* @retval SCI_SUCCESS the port configuration is valid for this
* port configuration agent.
* @retval SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION the port configuration
* is not valid for this port configuration agent.
*/
static
SCI_STATUS scic_sds_port_configuration_agent_validate_ports(
SCIC_SDS_CONTROLLER_T * controller,
SCIC_SDS_PORT_CONFIGURATION_AGENT_T * port_agent
)
{
#if !defined(ARLINGTON_BUILD)
SCI_SAS_ADDRESS_T first_address;
SCI_SAS_ADDRESS_T second_address;
SCIC_LOG_TRACE((
sci_base_object_get_logger(controller),
SCIC_LOG_OBJECT_CONTROLLER | SCIC_LOG_OBJECT_PORT,
"scic_sds_port_configuration_agent_validate_ports(0x%08x, 0x%08x) enter\n",
controller, port_agent
));
// Sanity check the max ranges for all the phys the max index
// is always equal to the port range index
if (
(port_agent->phy_valid_port_range[0].max_index != 0)
|| (port_agent->phy_valid_port_range[1].max_index != 1)
|| (port_agent->phy_valid_port_range[2].max_index != 2)
|| (port_agent->phy_valid_port_range[3].max_index != 3)
)
{
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
// This is a request to configure a single x4 port or at least attempt
// to make all the phys into a single port
if (
(port_agent->phy_valid_port_range[0].min_index == 0)
&& (port_agent->phy_valid_port_range[1].min_index == 0)
&& (port_agent->phy_valid_port_range[2].min_index == 0)
&& (port_agent->phy_valid_port_range[3].min_index == 0)
)
{
return SCI_SUCCESS;
}
// This is a degenerate case where phy 1 and phy 2 are assigned
// to the same port this is explicitly disallowed by the hardware
// unless they are part of the same x4 port and this condition was
// already checked above.
if (port_agent->phy_valid_port_range[2].min_index == 1)
{
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
// PE0 and PE3 can never have the same SAS Address unless they
// are part of the same x4 wide port and we have already checked
// for this condition.
scic_sds_phy_get_sas_address(&controller->phy_table[0], &first_address);
scic_sds_phy_get_sas_address(&controller->phy_table[3], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0)
{
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
// PE0 and PE1 are configured into a 2x1 ports make sure that the
// SAS Address for PE0 and PE2 are different since they can not be
// part of the same port.
if (
(port_agent->phy_valid_port_range[0].min_index == 0)
&& (port_agent->phy_valid_port_range[1].min_index == 1)
)
{
scic_sds_phy_get_sas_address(&controller->phy_table[0], &first_address);
scic_sds_phy_get_sas_address(&controller->phy_table[2], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0)
{
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
}
// PE2 and PE3 are configured into a 2x1 ports make sure that the
// SAS Address for PE1 and PE3 are different since they can not be
// part of the same port.
if (
(port_agent->phy_valid_port_range[2].min_index == 2)
&& (port_agent->phy_valid_port_range[3].min_index == 3)
)
{
scic_sds_phy_get_sas_address(&controller->phy_table[1], &first_address);
scic_sds_phy_get_sas_address(&controller->phy_table[3], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0)
{
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
}
#endif // !defined(ARLINGTON_BUILD)
return SCI_SUCCESS;
}
static enum sci_status
sci_mpc_agent_validate_phy_configuration(struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent)
{
u32 phy_mask;
u32 assigned_phy_mask;
struct sci_sas_address sas_address;
struct sci_sas_address phy_assigned_address;
u8 port_index;
u8 phy_index;
assigned_phy_mask = 0;
sas_address.high = 0;
sas_address.low = 0;
for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++) {
phy_mask = ihost->oem_parameters.ports[port_index].phy_mask;
if (!phy_mask)
continue;
if ((phy_mask & ~assigned_phy_mask) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) {
if ((phy_mask & (1 << phy_index)) == 0)
continue;
sci_phy_get_sas_address(&ihost->phys[phy_index],
&sas_address);
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
if (phy_index != port_index) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
break;
}
while (phy_index < SCI_MAX_PHYS) {
if ((phy_mask & (1 << phy_index)) == 0)
continue;
sci_phy_get_sas_address(&ihost->phys[phy_index],
&phy_assigned_address);
if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
sci_port_add_phy(&ihost->ports[port_index],
&ihost->phys[phy_index]);
assigned_phy_mask |= (1 << phy_index);
}
phy_index++;
}
return sci_port_configuration_agent_validate_ports(ihost, port_agent);
}
/* verify all of the phys in the same port are using the same SAS address */
static enum sci_status
sci_mpc_agent_validate_phy_configuration(struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent)
{
u32 phy_mask;
u32 assigned_phy_mask;
struct sci_sas_address sas_address;
struct sci_sas_address phy_assigned_address;
u8 port_index;
u8 phy_index;
assigned_phy_mask = 0;
sas_address.high = 0;
sas_address.low = 0;
for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++) {
phy_mask = ihost->oem_parameters.ports[port_index].phy_mask;
if (!phy_mask)
continue;
/*
* Make sure that one or more of the phys were not already assinged to
* a different port. */
if ((phy_mask & ~assigned_phy_mask) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
/* Find the starting phy index for this round through the loop */
for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) {
if ((phy_mask & (1 << phy_index)) == 0)
continue;
sci_phy_get_sas_address(&ihost->phys[phy_index],
&sas_address);
/*
* The phy_index can be used as the starting point for the
* port range since the hardware starts all logical ports
* the same as the PE index. */
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
if (phy_index != port_index) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
break;
}
/*
* See how many additional phys are being added to this logical port.
* Note: We have not moved the current phy_index so we will actually
* compare the startting phy with itself.
* This is expected and required to add the phy to the port. */
while (phy_index < SCI_MAX_PHYS) {
if ((phy_mask & (1 << phy_index)) == 0)
continue;
sci_phy_get_sas_address(&ihost->phys[phy_index],
&phy_assigned_address);
if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0) {
/*
* The phy mask specified that this phy is part of the same port
* as the starting phy and it is not so fail this configuration */
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
port_agent->phy_valid_port_range[phy_index].min_index = port_index;
port_agent->phy_valid_port_range[phy_index].max_index = phy_index;
sci_port_add_phy(&ihost->ports[port_index],
&ihost->phys[phy_index]);
assigned_phy_mask |= (1 << phy_index);
}
phy_index++;
}
return sci_port_configuration_agent_validate_ports(ihost, port_agent);
}
/**
*
* @controller: This is the controller object that contains the port agent
* @port_agent: This is the port configruation agent for the controller.
*
* This routine will validate the port configuration is correct for the SCU
* hardware. The SCU hardware allows for port configurations as follows. LP0
* -> (PE0), (PE0, PE1), (PE0, PE1, PE2, PE3) LP1 -> (PE1) LP2 -> (PE2), (PE2,
* PE3) LP3 -> (PE3) enum sci_status SCI_SUCCESS the port configuration is valid for
* this port configuration agent. SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION
* the port configuration is not valid for this port configuration agent.
*/
static enum sci_status sci_port_configuration_agent_validate_ports(
struct isci_host *ihost,
struct sci_port_configuration_agent *port_agent)
{
struct sci_sas_address first_address;
struct sci_sas_address second_address;
/*
* Sanity check the max ranges for all the phys the max index
* is always equal to the port range index */
if (port_agent->phy_valid_port_range[0].max_index != 0 ||
port_agent->phy_valid_port_range[1].max_index != 1 ||
port_agent->phy_valid_port_range[2].max_index != 2 ||
port_agent->phy_valid_port_range[3].max_index != 3)
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
/*
* This is a request to configure a single x4 port or at least attempt
* to make all the phys into a single port */
if (port_agent->phy_valid_port_range[0].min_index == 0 &&
port_agent->phy_valid_port_range[1].min_index == 0 &&
port_agent->phy_valid_port_range[2].min_index == 0 &&
port_agent->phy_valid_port_range[3].min_index == 0)
return SCI_SUCCESS;
/*
* This is a degenerate case where phy 1 and phy 2 are assigned
* to the same port this is explicitly disallowed by the hardware
* unless they are part of the same x4 port and this condition was
* already checked above. */
if (port_agent->phy_valid_port_range[2].min_index == 1) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
/*
* PE0 and PE3 can never have the same SAS Address unless they
* are part of the same x4 wide port and we have already checked
* for this condition. */
sci_phy_get_sas_address(&ihost->phys[0], &first_address);
sci_phy_get_sas_address(&ihost->phys[3], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
/*
* PE0 and PE1 are configured into a 2x1 ports make sure that the
* SAS Address for PE0 and PE2 are different since they can not be
* part of the same port. */
if (port_agent->phy_valid_port_range[0].min_index == 0 &&
port_agent->phy_valid_port_range[1].min_index == 1) {
sci_phy_get_sas_address(&ihost->phys[0], &first_address);
sci_phy_get_sas_address(&ihost->phys[2], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
}
/*
* PE2 and PE3 are configured into a 2x1 ports make sure that the
* SAS Address for PE1 and PE3 are different since they can not be
* part of the same port. */
if (port_agent->phy_valid_port_range[2].min_index == 2 &&
port_agent->phy_valid_port_range[3].min_index == 3) {
sci_phy_get_sas_address(&ihost->phys[1], &first_address);
sci_phy_get_sas_address(&ihost->phys[3], &second_address);
if (sci_sas_address_compare(first_address, second_address) == 0) {
return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION;
}
}
return SCI_SUCCESS;
}
