Commit Graph

19 Commits

Author SHA1 Message Date
Dan Williams abec912d71 isci: refactor initialization for S3/S4
Based on an original implementation by Ed Nadolski and Artur Wojcik

In preparation for S3/S4 support refactor initialization so that
driver-load and resume-from-suspend can share the common init path of
isci_host_init().  Organize the initialization into objects that are
self-contained to the driver (initialized by isci_host_init) versus
those that have some upward registration (initialized at allocation time
asd_sas_phy, asd_sas_port, dma allocations).  The largest change is
moving the the validation of the oem and module parameters from
isci_host_init() to isci_host_alloc().

The S3/S4 approach being taken is that libsas will be tasked with
remembering the state of the domain and the lldd is free to be
forgetful.  In the case of isci we'll just re-init using a subset of the
normal driver load path.

[clean up some unused / mis-indented function definitions in host.h]

Signed-off-by: Ed Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2012-05-17 12:27:12 -07:00
Jeff Skirvin 9fee607f0b [SCSI] isci: oem parameter format v1.3 (cable select)
v1.3 allows the attenuation of the attached cables to be specified to
the driver in terms of 'short', 'medium', and 'long' (see probe_roms.h).
These settings (per phy) are retrieved from the platform oem-parameters
(BIOS rom) or via a module parameter override.

Reviewed-by: Jiangbi Liu <jiangbi.liu@intel.com>
Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:43:04 +04:00
Dave Jiang 594e566ae5 [SCSI] isci: oem parameter format v1.1 (ssc select)
v1.1 allows finer grained tuning of the SSC (spread-spectrum-clocking)
settings for SAS and SATA.  See notes in probe_roms.h

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:42:00 +04:00
Andrzej Jakowski 7000f7c71e [SCSI] isci: overriding max_concurr_spinup oem parameter by max(oem, user)
Fixes bug where max_concurr_spinup oem parameter should be
overriden by max_concurr_spinup user parameter. Override should
happen only when max_concurr_spinup user parameter is specified
in command line (greater than 0). Also this fix shortens variables
representing max_conxurr_spinup for oem and user parameters.

Signed-off-by: Andrzej Jakowski <andrzej.jakowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-31 13:23:18 +04:00
Dan Williams 89a7301f21 isci: retire scic_sds_ and scic_ prefixes
The distinction between scic_sds_ scic_ and sci_ are no longer relevant
so just unify the prefixes on sci_.  The distinction between isci_ and
sci_ is historically significant, and useful for comparing the old
'core' to the current Linux driver. 'sci_' represents the former core as
well as the routines that are closer to the hardware and protocol than
their 'isci_' brethren. sci == sas controller interface.

Also unwind the 'sds1' out of the parameter structs.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:52 -07:00
Dan Williams d9dcb4ba79 isci: unify isci_host and scic_sds_controller
Remove the distinction between these two implementations and unify on
isci_host (local instances named ihost).  Hmmm, we had two
'oem_parameters' instances, one was unused... nice.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:52 -07:00
Dave Jiang bf482c6069 isci: Retrieve the EFI variable for OEM parameter
We can call the EFI get_variable service routine directly to retrieve
the EFI variable that holds the OEM parameters table.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:50 -07:00
Dan Williams e2f8db509f isci: uplevel port infrastructure
* Move port configuration agent implementation
* Merge core/scic_sds_port.[ch] into port.[ch]

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:47 -07:00
Dan Williams ce2b3261b6 isci: unify constants
cross driver constants are spread out over multiple header files, consolidate
them into isci.h, and push some includes out to the source files that need
them.

TODO: remove SCI_MODE_SIZE infrastructure.
TODO: task.h is full of inlines that are too large

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:47 -07:00
Dan Williams f22be5d838 isci: fix oem parameter header definition
The element_length is 2 bytes.

Reported-by: Yinghai Lu <yinghai.lu@oracle.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00
Dave Jiang de728b7d72 isci: Remove "screaming" data types
Converting the all CAPS data types to lower case.

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:36 -07:00
Dan Williams 4eefd2518a isci: fix apc mode definition
The original apc mode definition is the correct one, the fix from commit
4711ba10 "isci: fix oem parameter initialization and mode detection" was based
on a typo from a specification update.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:58:14 -07:00
Dan Williams 4711ba10b1 isci: fix oem parameter initialization and mode detection
1/ Since commit 858d4aa7 "isci: Move firmware loading to per PCI device" we have
   been silently falling back to built-in defaults for the parameter settings by
   skipping the call to scic_oem_parameters_set().

2/ The afe parameters from the firmware were not being honored

3/ The latest oem parameter definition flips the mode_type values which are
   now 0: for APC 1: for MPC.  For APC we need to make sure all the phys
   default to the same address otherwise strict_wide_ports will cause duplicate
   domains.

4/ Fix up the driver announcement to indicate the source of the
   parameters.

5/ Fix up the sas addresses to be unique per controller (in the fallback case)

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:55:31 -07:00
Dave Jiang 2e8320f751 isci: Fixup for OEM parameter EFI variable retrieval
Updating the EFI variable OEM parameter retrieval after examining the EFI
variable exported via sysfs.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:55:31 -07:00
Dan Williams 3b67c1f376 isci: fixup with testing from isci OROM in BIOS
Added fixups for the OROM parsing code after testing with BIOS OROM

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:55:31 -07:00
Dave Jiang ca507b98e6 isci: update efi variable name and guid
These are the finalized values that the driver can expect to see in
production.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:55:30 -07:00
Henryk Dembkowski 07373a5caa isci: add support for 2 more oem parmeters
1/ add OEM paramater support for mode_type (MPC vs APC)
2/ add OEM parameter support for max_number_concurrent_device_spin_up
3/ cleanup scic_sds_controller_start_next_phy

todo: hook up the amp control afe parameters into the afe init code

Signed-off-by: Henryk Dembkowski <henryk.dembkowski@intel.com>
Signed-off-by: Jacek Danecki <Jacek.Danecki@intel.com>
[cleaned up scic_sds_controller_start_next_phy]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:55:30 -07:00
Dave Jiang 8db37aabac isci: Adding EFI variable skeletal support
Adding EFI variable retrieving for OEM parameters. Still need GUID and
variable name.

Also updated the data struct for oem parameters and hex file for firmware

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
[fix CONFIG_EFI=n compile error]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:55:30 -07:00
Dan Williams d044af17aa isci: Add support for probing OROM for OEM params
We need to scan the OROM for signature and grab the OEM parameters. We
also need to do the same for EFI. If all fails then we resort to user
binary blob, and if that fails then we go to the defaults.

Share the format with the create_fw utility so that all possible sources
of the parameters are in-sync.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 03:55:30 -07:00