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| author | James Bottomley <James.Bottomley@steeleye.com> | 2006-07-09 19:38:19 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-07-12 15:03:20 +0200 |
| commit | a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7f (patch) | |
| tree | 4e62bf64d66e2a07cdad6480441a2a443246e3cb /include/scsi | |
| parent | [SCSI] hide EH backup data outside the scsi_cmnd (diff) | |
| download | linux-a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7f.tar.xz linux-a0e1b6ef3b851fe6f1dcc259432e83de79ce5e7f.zip | |
[SCSI] scsi_transport_sas: add expander backlink
This patch adds the ability to add a backlink to a particular port. The
idea is to represent properly ports on expanders that are used
specifically for linking to the parent device in the topology.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_transport_sas.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h index f5772ff61d0d..6cc2314098cf 100644 --- a/include/scsi/scsi_transport_sas.h +++ b/include/scsi/scsi_transport_sas.h @@ -130,6 +130,8 @@ struct sas_port { int port_identifier; int num_phys; + /* port flags */ + unsigned int is_backlink:1; /* the other end of the link */ struct sas_rphy *rphy; @@ -175,6 +177,7 @@ void sas_port_free(struct sas_port *); void sas_port_delete(struct sas_port *); void sas_port_add_phy(struct sas_port *, struct sas_phy *); void sas_port_delete_phy(struct sas_port *, struct sas_phy *); +void sas_port_mark_backlink(struct sas_port *); int scsi_is_sas_port(const struct device *); extern struct scsi_transport_template * |