[SCSI] aci94xx: implement link rate setting

This patch implements the ability to set the minimum and maximum
linkrates for both libsas (for expanders) and aic94xx (for the host
phys).  It also tidies up the setting of the hardware min and max to
make sure they're updated when the expander emits a change broadcast.

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

2 files changed, 2 insertions, 1 deletions

diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 8d91313dd888..8e39982fc3db 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -586,7 +586,7 @@ struct sas_domain_function_template {
         int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
 
         /* Phy management */
-        int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func);
+        int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *);
 };
 
 extern int sas_register_ha(struct sas_ha_struct *);
diff --git a/include/scsi/sas.h b/include/scsi/sas.h
index 9c8a5b91ae64..2f4b6afa34fc 100644
--- a/include/scsi/sas.h
+++ b/include/scsi/sas.h
@@ -121,6 +121,7 @@ enum phy_func {
         PHY_FUNC_CLEAR_AFFIL,
         PHY_FUNC_TX_SATA_PS_SIGNAL,
         PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
+        PHY_FUNC_SET_LINK_RATE,
 };
 
 /* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.