[SCSI] transport_sas: add SAS management protocol support

The sas transport class attaches one bsg device to every SAS object
(host, device, expander, etc). LLDs can define a function to handle
SMP requests via sas_function_template::smp_handler.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index 97eeb5b59ea5..af304fb9d979 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -7,7 +7,7 @@
 
 struct scsi_transport_template;
 struct sas_rphy;
-
+struct request;
 
 enum sas_device_type {
         SAS_PHY_UNUSED,
@@ -172,6 +172,7 @@ struct sas_function_template {
         int (*phy_reset)(struct sas_phy *, int);
         int (*phy_enable)(struct sas_phy *, int);
         int (*set_phy_speed)(struct sas_phy *, struct sas_phy_linkrates *);
+        int (*smp_handler)(struct Scsi_Host *, struct sas_rphy *, struct request *);
 };