Commit Graph

253273 Commits

Author SHA1 Message Date
Dan Williams c6d4225789 isci: remove compile-time (Kconfig) silicon configuration
Pre-production silicon support is deprecated, and will be removed
completely in the future.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dave Jiang d6f6404c03 isci: Removing unused define SCIC_SDS_4_ENABLED
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 971cc2ff90 isci: kill scic_sds_remote_device.state_handlers
Remove the now unused state_handler infrastructure for remote_devices.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 01bec7788d isci: unify remote_device frame_handlers
Implement all states in scic_sds_remote_device_frame() and delete
the state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams e622571f0f isci: unify remote_device event_handlers
Implement all states in scic_sds_remote_device_event() and delete
the state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 978edfef46 isci: kill remote_device resume_handler
This is unused infrastructure.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 323f0ec0fc isci: unify remote_device suspend_handlers
Implement all states in scic_sds_remote_device_suspend() and delete
the state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams e4a867bb4a isci: kill remote_device complete_task_handler
This is unused infrastructure.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 84b9b029bc isci: unify remote_device start_task_handlers
Implement all states in scic_sds_remote_device_start_task() and delete
the state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams c027a20bf3 isci: kill remote_device continue_io_handler
This is unused infrastructure.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 10a09e64be isci: unify remote_device complete_io_handlers
Implement all states in scic_sds_remote_device_complete_io() and delete
the state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 1860655706 isci: unify remote_device start_io_handlers
Implement all states in scic_sds_remote_device_start_io() and delete the
state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 8151518265 isci: unify remote_device reset_complete_handlers
Implement all states in scic_remote_device_reset_complete() and delete the
state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 4fd0d2e9bf isci: unify remote_device reset_handlers
Implement all states in scic_remote_device_reset() and delete the state
handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams b8d82f6cdd isci: unify remote_device destruct_handlers
Implement all states in scic_remote_device_destruct() and delete the state
handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams 1a6de2562b isci: kill remote_device fail_handler
This is just unused infrastructure.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams ec5756699b isci: unify remote_device stop_handlers
Implement all states in scic_remote_device_stop() and delete the state
handlers.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:45 -07:00
Dan Williams eb229671b1 isci: unify remote_device start_handlers
Implement all states in scic_remote_device_start() and delete the state
handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:04:44 -07:00
Dan Williams f619fffb40 isci: fix remote_device start_io regressions
While reducing indentation commits 7ab92c9e "isci: make a
remote_node_context a proper member of a remote_device", 0879e6a6 "isci:
merge remote_device substates into a single state machine" broke
handling of situations where i/o's successfully started at the port
level need to terminated when the remote_node declines to start the i/o.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:39 -07:00
Dan Williams 8f304c36ee isci: kill scic_remote_device_get_connection_rate
A function call to dereference a pointer is a tad much.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:39 -07:00
Dan Williams ab2e8f7d07 isci: merge remote_device substates into a single state machine
A substate is just a state, so uplevel the smp and stp device substates.
Three tricks at work here:

1/ scic_sds_remote_device_ready_state_enter: needs to know the the device type
   so it can immediately transition to a stp or smp ready substate.

2/ scic_sds_remote_device_ready_state_exit: needs to know the device type. In
   the ssp case the device is no longer ready, in the stp, and smp case we have
   simply exited to a ready "substate".

3/ scic_sds_remote_device_resume_complete_handler: The one location
   where we directly check the current state against
   SCI_BASE_REMOTE_DEVICE_STATE_READY needed to comprehend the possible ready
   substates.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:39 -07:00
Maciej Patelczyk be2f41c611 isci: Removed sci_object.h from project.
The sci_object.h file was removed. No sci_base_object
is now in the code.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:39 -07:00
Maciej Patelczyk 890cae9b8a isci: Removed sci_base_object from scic_sds_request.
The 'struct sci_base_object' was removed from the struct
scic_sds_request and was replaced by a pointer to
struct isci_request.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Maciej Patelczyk af23e85737 isci: Removed sci_base_object from scic_sds_remote_node_context.
The 'struct sci_base_object' was removed from the struct
scic_sds_remote_node_context.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Maciej Patelczyk 5d937e966d isci: Removed sci_base_object from scic_sds_remote_device.
The 'struct sci_base_object' was removed from the struct
scic_sds_remote_device.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
[cleaned up sci_dev_to_idev]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Maciej Patelczyk 115bd1f9e8 isci: Removed sci_base_object from scic_sds_port.
The 'struct sci_base_object' was removed from the struct
scic_sds_port and was replaced by a pointer to
struct isci_port.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Maciej Patelczyk e1e72a00dd isci: Removed sci_base_object from scic_sds_phy.
The 'struct sci_base_object' was removed from the struct
scic_sds_phy and was replaced by a pointer to
struct isci_phy.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Maciej Patelczyk d3757c3aeb isci: Removed sci_base_object from scic_sds_controller.
The 'struct sci_base_object' was removed from the struct
scic_sds_controller and was replaced by a pointer to
struct isci_host.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Maciej Patelczyk 9a0fff7bf0 isci: Removed struct sci_base_object from state machine.
Changed any occurrence of struct sci_base_object into void.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Maciej Patelczyk e76d80579c isci: Implement SCU AFE recipe 10.
Updated SCU AFE initialization values accordingly to the recipe 10.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dave Jiang d2d61433a8 isci: Remove excessive log noise with expander hot-unplug
We are logging excessive output when hot unplug from expander. Moving
that to debug.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams d37ee7e89a isci: allow fallback to option-rom if efi variable retrieval fails
If the scu efi driver is disabled but the option-rom is enabled (during an efi
boot) allow the code to fallback to scanning legacy option-rom space for the
parameters.

Reported-by: Yinghai Lu <yinghai.lu@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dave Jiang 3d6e428c0c isci: removing non-working ATAPI code
Removing not used / bit-rotten ATAPI code. This needs to go back
and debugged at a later date.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
[reflow against devel, delete dead sati headers]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams 1f4fa1f958 isci: remove scic_sds_remote_device_get_port_index
Longer to type than the open-coded equivalent.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams a3d568f0df isci: remove usage of sci_sas_address in scic_sds_remote_device
The sas address can be retrieved from the domain device and then
converted to the always little-endian format in the remote node context.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams 00d680ef84 isci: kill smp_discover_response
An lldd need never look at the contents of an smp_discover_response frame.
Kill the remaining locations where isci is looking at it:

1/ covering for expanders that do not set the stp_attached bit (already
   handled by sas_ex_discover_end_dev)
2/ an overkill method to notifiy the rest of the driver about remote_device
   sas addresses

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams a1a113b0a1 isci: kill smp_discover_response_protocols in favor of domain_device.dev_type
This is step 1 of removing the contortions to:
1/ unparse expander phy data into a smp discover frame
2/ open-code-parse the smp discover fram into a domain_device.dev_type equivalent

libsas has already spent cycles determining the dev_type, so now that
scic_sds_remote_device is unified with isci_remote_device we can
directly reference dev_type.

This might also change multi-level expander detection as we previously only
looked at dev_type == EDGE_DEV and we did not consider the FANOUT_DEV case.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams b87ee3075b isci: cleanup remote device construction and comments
The construction routines scic_remote_device_[de]a_construct both reference
the need to call scic_remote_device_construct first.  Delete that comment and
just have them call it explicitly, also:
* move the comments from header to source
* delete dead references to scic_[de]a_remote_device_add_phy

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams 88f3b62ac1 isci: move remote_device handling out of the core
Now that the core/lldd remote_device data structures are nominally unified
merge the corresponding sources into the top-level directory.  Also move the
remote_node_context infrastructure which has no analog at the lldd level.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams 57f20f4ed6 isci: unify remote_device data structures
Make it explicit that isci_remote_device and scic_sds_remote_device are
one in the same object.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:38 -07:00
Dan Williams 9614395ea2 isci: remove rnc->device back pointer
Now that they are one in the same object remove the back pointer reference
in favor of container_of.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00
Dan Williams 7ab92c9ed2 isci: make a remote_node_context a proper member of a remote_device
A rnc object has the same lifetime as its associated remote_device.  It might
get re-initialized, but a remote device always has an rnc member.  Preparation
for unifying scic_sds_remote_device and isci_remote_device

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00
Dan Williams 31e824ed0d isci: rely on irq core for intx multiplexing, and silence screaming intx
Remove the extra logic to poll each controller for interrupts, that's
the core's job for shared interrupts.

While testing noticed that a number of interrupts fire while waiting for
the completion tasklet to run, so added an irq-ack.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00
Dave Jiang e2023b8735 isci: replace this_* and the_* variables with more meaningful names
Removed any instances of the_* and this_* to variable names that are more
meaningful and tell us what they actually are.

Signed-off-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
Dan Williams 2d70de5a0f isci: validate oem parameters early, and fallback
If the platform specifies invalid parameters warn the user and fallback to
internal defaults rather than fail the driver load altogether.

Reported-by: Yinghai Lu <yinghai.lu@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -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
Bartosz Barcinski 6cb4d6b382 isci: audit usage of BUG_ON macro in isci driver
Removes unnecessary usage of BUG_ON macro, excluding core directory.
In some cases macro is unnecesary, check is done in caller function.
In other cases macro is replaced by if construction with
appropriate warning.

Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
[changed some survivable bug conditions to WARN_ONCE]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00
Bartosz Barcinski 467e855a03 isci: sparse warnings cleanup
Clean warnings and errors reported by sparse tool.

request.c:430:50: warning: mixing different enum types
remote_device.c:534:39: warning: symbol 'flags' shadows an earlier one
task.c:495:44: warning: mixing different enum types
scic_sds_controller.c:2155:24: warning: mixing different enum types
scic_sds_controller.c:2272:36: warning: mixing different enum types
scic_sds_controller.c:2911:38: warning: incorrect type in initializer (different address spaces)
scic_sds_controller.c:2913:25: warning: incorrect type in argument 2 (different address spaces)
scic_sds_request.c:875:34: warning: cast removes address space of expression
scic_sds_request.c:876:123: warning: incorrect type in argument 2 (different address spaces)
scic_sds_port.c:585:51: warning: incorrect type in assignment (different address spaces)
scic_sds_port.c:712:9: warning: incorrect type in argument 2 (different address spaces)
scic_sds_port.c:1770:25: warning: incorrect type in argument 2 (different address spaces)

Signed-off-by: Bartosz Barcinski <Bartosz.Barcinski@intel.com>
Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
[fixed up some false positives and misconversions]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00
Dan Williams 26bace349e isci: replace sci_sas_link_rate with sas_linkrate
Drop duplicated enum definition.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00
Maciej Trela d857d9a0ad isci: remove base_phy abstraction
Merge struct sci_base_phy into scic_sds_phy.  Until now sci_base_phy was
referenced using scic_sds_phy->parent field.

'sci_base_phy' state machine handlers were also merged into scic_sds_phy
state handlers.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Maciej Trela <Maciej.Trela@intel.com>
Signed-off-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-07-03 04:00:37 -07:00