[SCSI] Add an 'Issue LIP' device attribute in fc_transport class

Ok, here's a patch to add such a common API for fc transport users.
Relevant LLD changes (lpfc and qla2xxx) also present.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 49696faa24fa..48e460eef05a 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -503,6 +503,15 @@ qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
 }
 
+static int
+qla2x00_issue_lip(struct Scsi_Host *shost)
+{
+        scsi_qla_host_t *ha = to_qla_host(shost);
+
+        set_bit(LOOP_RESET_NEEDED, &ha->dpc_flags);
+        return 0;
+}
+
 struct fc_function_template qla2xxx_transport_functions = {
 
         .show_host_node_name = 1,
@@ -526,6 +535,7 @@ struct fc_function_template qla2xxx_transport_functions = {
         .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
         .show_rport_dev_loss_tmo = 1,
 
+        .issue_fc_host_lip = qla2x00_issue_lip,
 };
 
 void