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[SCSI] isci: kill iphy->isci_port lookups

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This field is a holdover from the OS abstraction conversion.  The stable
phy to port lookups are done via iphy->ownining_port under scic_lock.
After this conversion to use port->lldd_port the only volatile lookup is
the initial lookup in isci_port_formed().  After that point any lookup
via a successfully notified domain_device is guaranteed to be valid
until the domain_device is destroyed.

Delete ->start_complete as it is only set once and is set as a
consequence of the port going link up, by definition of getting a port
formed event the port is "ready".

While we are correcting port lookups also move the asd_sas_port table
out from under the isci_port.  This is to preclude any temptation to use
container_of() to convert an asd_sas_port to an isci_port, the
association is dynamic and under libsas control.

Tested-by: Maciej Trela <maciej.trela@intel.com>
[dmilburn@redhat.com: fix i686 compile error]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Dan Williams
2012-01-03 23:26:08 -08:00
committed by James Bottomley
parent cb48d672bf
commit c132f69208
7 changed files with 83 additions and 77 deletions
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7
drivers/scsi/isci/init.c
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@@ -241,18 +241,13 @@ static int isci_register_sas_ha(struct isci_host *isci_host)
if (!sas_ports)
return -ENOMEM;
/*----------------- Libsas Initialization Stuff----------------------
* Set various fields in the sas_ha struct:
*/
sas_ha->sas_ha_name = DRV_NAME;
sas_ha->lldd_module = THIS_MODULE;
sas_ha->sas_addr = &isci_host->phys[0].sas_addr[0];
/* set the array of phy and port structs. */
for (i = 0; i < SCI_MAX_PHYS; i++) {
sas_phys[i] = &isci_host->phys[i].sas_phy;
sas_ports[i] = &isci_host->ports[i].sas_port;
sas_ports[i] = &isci_host->sas_ports[i];
}
sas_ha->sas_phy = sas_phys;