From c9fefeb26457b87f4a767faefcf77321bb90db52 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sun, 2 Jul 2006 11:10:18 -0500 Subject: [SCSI] scsi_transport_sas: add unindexed ports Some SAS HBAs don't want to go to the trouble of tracking port numbers, so they'd simply like to say "add this port and give it a number". This is especially beneficial from the hotplug point of view, since tracking ports and the available number space can be a real pain. The current implementation uses an incrementing number per expander to add the port on. However, since there can never be more ports than there are phys, a later implementation will try to be more intelligent about this. Signed-off-by: James Bottomley --- include/scsi/scsi_transport_sas.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/scsi/scsi_transport_sas.h') diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h index e3c503cd175..f5772ff61d0 100644 --- a/include/scsi/scsi_transport_sas.h +++ b/include/scsi/scsi_transport_sas.h @@ -106,6 +106,7 @@ struct sas_end_device { struct sas_expander_device { int level; + int next_port_id; #define SAS_EXPANDER_VENDOR_ID_LEN 8 char vendor_id[SAS_EXPANDER_VENDOR_ID_LEN+1]; @@ -127,7 +128,7 @@ struct sas_expander_device { struct sas_port { struct device dev; - u8 port_identifier; + int port_identifier; int num_phys; /* the other end of the link */ @@ -168,6 +169,7 @@ extern void sas_rphy_delete(struct sas_rphy *); extern int scsi_is_sas_rphy(const struct device *); struct sas_port *sas_port_alloc(struct device *, int); +struct sas_port *sas_port_alloc_num(struct device *); int sas_port_add(struct sas_port *); void sas_port_free(struct sas_port *); void sas_port_delete(struct sas_port *); -- cgit v1.2.3