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[SCSI] isci: enable wide port targets

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Arrange for task_contexts prepared for the wide targets to account for
all the attached phys in the port.

Signed-off-by: Bartek Nowakowski <bartek.nowakowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Bartek Nowakowski 2012-01-04 01:33:20 -08:00 committed by James Bottomley
parent d4ec1cf61f
commit 7e629841b8
3 changed files with 12 additions and 4 deletions
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2
drivers/scsi/isci/port.c
View File

@ -114,7 +114,7 @@ static u32 sci_port_get_phys(struct isci_port *iport)
* value is returned if the specified port is not valid. When this value is
* returned, no data is copied to the properties output parameter.
*/
static enum sci_status sci_port_get_properties(struct isci_port *iport,
enum sci_status sci_port_get_properties(struct isci_port *iport,
struct sci_port_properties *prop)
{
if (!iport || iport->logical_port_index == SCIC_SDS_DUMMY_PORT)

4
drivers/scsi/isci/port.h
View File

@ -250,6 +250,10 @@ bool sci_port_link_detected(
struct isci_port *iport,
struct isci_phy *iphy);
enum sci_status sci_port_get_properties(
struct isci_port *iport,
struct sci_port_properties *prop);
enum sci_status sci_port_link_up(struct isci_port *iport,
struct isci_phy *iphy);
enum sci_status sci_port_link_down(struct isci_port *iport,

10
drivers/scsi/isci/remote_device.c
View File

@ -53,6 +53,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <scsi/sas.h>
#include <linux/bitops.h>
#include "isci.h"
#include "port.h"
#include "remote_device.h"
@ -1101,6 +1102,7 @@ static enum sci_status sci_remote_device_da_construct(struct isci_port *iport,
struct isci_remote_device *idev)
{
enum sci_status status;
struct sci_port_properties properties;
struct domain_device *dev = idev->domain_dev;
sci_remote_device_construct(iport, idev);
@ -1110,6 +1112,11 @@ static enum sci_status sci_remote_device_da_construct(struct isci_port *iport,
* entries will be needed to store the remote node.
*/
idev->is_direct_attached = true;
sci_port_get_properties(iport, &properties);
/* Get accurate port width from port's phy mask for a DA device. */
idev->device_port_width = hweight32(properties.phy_mask);
status = sci_controller_allocate_remote_node_context(iport->owning_controller,
idev,
&idev->rnc.remote_node_index);
@ -1125,9 +1132,6 @@ static enum sci_status sci_remote_device_da_construct(struct isci_port *iport,
idev->connection_rate = sci_port_get_max_allowed_speed(iport);
/* / @todo Should I assign the port width by reading all of the phys on the port? */
idev->device_port_width = 1;
return SCI_SUCCESS;
}