diff options
author | Darrick J. Wong <djwong@us.ibm.com> | 2007-01-11 17:14:57 -0500 |
---|---|---|
committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-01-13 17:13:00 -0500 |
commit | acbf167d4ad8c27f9743a4b539d51ae9535bf21c (patch) | |
tree | e53f8330f60acaef42d74a745b3dd5131b424e49 /include/scsi | |
parent | b218a0d8e250e0ae8fd4d4e45bd66a588b380752 (diff) |
[SCSI] libsas: Add a sysfs knob to enable/disable a phy
This patch lets a user arbitrarily enable or disable a phy via sysfs.
Potential applications include shutting down a phy to replace one
lane of wide port, and (more importantly) providing a method for the
libata SATL to control the phy.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi')
-rw-r--r-- | include/scsi/libsas.h | 3 | ||||
-rw-r--r-- | include/scsi/scsi_transport_sas.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index da96bcfb9e46..0689d6682aa3 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h | |||
@@ -614,6 +614,9 @@ struct sas_domain_function_template { | |||
614 | extern int sas_register_ha(struct sas_ha_struct *); | 614 | extern int sas_register_ha(struct sas_ha_struct *); |
615 | extern int sas_unregister_ha(struct sas_ha_struct *); | 615 | extern int sas_unregister_ha(struct sas_ha_struct *); |
616 | 616 | ||
617 | int sas_set_phy_speed(struct sas_phy *phy, | ||
618 | struct sas_phy_linkrates *rates); | ||
619 | int sas_phy_enable(struct sas_phy *phy, int enabled); | ||
617 | int sas_phy_reset(struct sas_phy *phy, int hard_reset); | 620 | int sas_phy_reset(struct sas_phy *phy, int hard_reset); |
618 | extern int sas_queuecommand(struct scsi_cmnd *, | 621 | extern int sas_queuecommand(struct scsi_cmnd *, |
619 | void (*scsi_done)(struct scsi_cmnd *)); | 622 | void (*scsi_done)(struct scsi_cmnd *)); |
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h index 59633a82de47..45d58598c3ee 100644 --- a/include/scsi/scsi_transport_sas.h +++ b/include/scsi/scsi_transport_sas.h | |||
@@ -54,6 +54,7 @@ struct sas_identify { | |||
54 | struct sas_phy { | 54 | struct sas_phy { |
55 | struct device dev; | 55 | struct device dev; |
56 | int number; | 56 | int number; |
57 | int enabled; | ||
57 | 58 | ||
58 | /* phy identification */ | 59 | /* phy identification */ |
59 | struct sas_identify identify; | 60 | struct sas_identify identify; |
@@ -163,6 +164,7 @@ struct sas_function_template { | |||
163 | int (*get_enclosure_identifier)(struct sas_rphy *, u64 *); | 164 | int (*get_enclosure_identifier)(struct sas_rphy *, u64 *); |
164 | int (*get_bay_identifier)(struct sas_rphy *); | 165 | int (*get_bay_identifier)(struct sas_rphy *); |
165 | int (*phy_reset)(struct sas_phy *, int); | 166 | int (*phy_reset)(struct sas_phy *, int); |
167 | int (*phy_enable)(struct sas_phy *, int); | ||
166 | int (*set_phy_speed)(struct sas_phy *, struct sas_phy_linkrates *); | 168 | int (*set_phy_speed)(struct sas_phy *, struct sas_phy_linkrates *); |
167 | }; | 169 | }; |
168 | 170 | ||