linux-toradex.git/drivers/scsi/isci/remote_node_context.h, branch v3.18.21

isci: make function declaration match implementation

2012-07-03T19:09:31+00:00

Sparse complains that we redeclare this with a different type, because
in the .c file we use an enum and in the .h file we declare the
parameter as a u32.  Probably it's best to use an enum in both places.

Signed-off-by: Dan Carpenter 
Signed-off-by: Dan Williams

isci: End the RNC resumption wait when the RNC is destroyed.

2012-05-17T21:33:44+00:00

While the RNC is suspended for I/O cleanup, the remote device can be
stopped and the RNC setup for destruction.  These changes accomodate that
case in the abort path.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Don't wait for an RNC suspend if it's being destroyed.

2012-05-17T21:33:43+00:00

Make sure that the wait for suspend can handle the RNC destruction case.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Implement waiting for suspend in the abort path.

2012-05-17T21:33:41+00:00

In order to prevent a device from receiving an I/O request while still
in an RNC suspending or resuming state (and therefore failing that
I/O back to libsas with a reset required status) wait for the RNC state
change before proceding in the abort path.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Save the suspension hint for upcoming suspensions.

2012-05-17T21:33:40+00:00

In the case of a suspend call while in SCI_RNC_POSTING or INVALIDATING
states, the LLHANG detect needed to be saved so the upcoming suspension
would enable it correctly.  The unused suspend callback parameters were
removed.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Distinguish between remote device suspension cases

2012-05-17T21:33:40+00:00

For NCQ error conditions among others, there is no need to enable
the link layer hang detect timer.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Add suspension cases for RNC INVALIDATING, POSTING states.

2012-05-17T21:33:39+00:00

The RNC can be any of the states in the loop from suspended to
ready when the API "suspend" or "resume" are called.  This change
adds destination states parameters that control the suspension /
resumption action of the RNC statemachine for those transition states.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Redesign device suspension, abort, cleanup.

2012-05-17T21:33:38+00:00

This commit changes the means by which outstanding I/Os are handled
for cleanup.
The likelihood is that this commit will be broken into smaller pieces,
however that will be a later revision.  Among the changes:

- All completion structures have been removed from the tmf and
abort paths.
- Now using one completed I/O list, with the I/O completed in host bit being
used to select error or normal callback paths.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Terminate outstanding TCs on TX/RX RNC suspensions.

2012-05-17T21:33:37+00:00

TCs must only be terminated when RNCs are suspended.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams

isci: Handle all suspending TC completions

2012-05-17T21:33:37+00:00

Add comprehensive decode for all TC completions that generate RNC
suspensions.

Note that this commit also removes unconditional resumptions of ATAPI
devices when in the SCI_STP_DEV_ATAPI_ERROR state, and STP devices
when in the SCI_STP_DEV_IDLE state. This is because the SCI_STP_DEV_IDLE
and SCI_STP_DEV_ATAPI state entry functions manage the RNC resumption.

Signed-off-by: Jeff Skirvin 
Signed-off-by: Dan Williams