Commit Graph
606 Commits
Author SHA1 Message Date
Corey Minyard 048f7c3e35 ipmi: Properly release srcu locks on error conditions
When SRCU was added for handling hotplug, some error conditions
were not handled properly.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-05-24 15:08:30 -05:00
Avi Fishman 58aae18eb9 ipmi: NPCM7xx KCS BMC: enable interrupt to the host
Original kcs_bmc_npcm7xx.c was missing enabling to send interrupt to the
host on writes to output buffer.
This patch fixes it by setting the bits that enables the generation of
IRQn events by hardware control based on the status of the OBF flag.

Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
Reviewed-by:   Haiyue Wang <haiyue.wang@linux.intel.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-05-23 08:29:23 -05:00
Corey Minyard fe50a7d039 ipmi:bt: Set the timeout before doing a capabilities check
There was one place where the timeout value for an operation was
not being set, if a capabilities request was done from idle.  Move
the timeout value setting to before where that change might be
requested.

IMHO the cause here is the invisible returns in the macros.  Maybe
that's a job for later, though.

Reported-by: Nordmark Claes <Claes.Nordmark@tieto.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: stable@vger.kernel.org
2018-05-22 13:48:30 -05:00
Corey Minyard 163475ebf9 ipmi: Remove the proc interface
It has been deprecated long enough, get rid of it.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-05-09 12:21:46 -05:00
Gustavo A. R. Silva 1211229399 ipmi_ssif: Fix uninitialized variable issue
Currently, function ssif_remove returns _rv_, which is a variable that
is never initialized.

Fix this by removing variable _rv_ and return 0 instead.

Addresses-Coverity-ID: 1467999 ("Uninitialized scalar variable")
Fixes: 6a0d23ed33 ("ipmi: ipmi_unregister_smi() cannot fail, have it
return void")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-19 08:37:58 -05:00
Haiyue Wang 6b2e54f7ba ipmi: add an NPCM7xx KCS BMC driver
This driver exposes the Keyboard Controller Style (KCS) interface on
Novoton NPCM7xx SoCs as a character device. Such SOCs are commonly used
as a BaseBoard Management Controller (BMC) on a server board, and KCS
interface is commonly used to perform the in-band IPMI communication
between the server and its BMC.

Signed-off-by: Avi Fishman <avifishman70@gmail.com>
Signed-off-by: Haiyue Wang <haiyue.wang@linux.intel.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:12 -05:00
Corey Minyard 93c303d204 ipmi_si: Clean up shutdown a bit
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:11 -05:00
Corey Minyard 57bccb4e87 ipmi_si: Rename intf_num to si_num
There is already an intf_num in the main IPMI device structure, use
a different name in the ipmi_si code to avoid confusion.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:10 -05:00
Corey Minyard 0fbecb4f47 ipmi: Remove smi->intf checks
Due to changes in the way shutdown is done, it is no longer
required to check that the interface is set.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:08 -05:00
Corey Minyard ebb339a597 ipmi_ssif: Get rid of unused intf_num
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:07 -05:00
Corey Minyard 6a0d23ed33 ipmi: ipmi_unregister_smi() cannot fail, have it return void
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:05 -05:00
Corey Minyard e56710d26e ipmi_devintf: Add an error return on invalid ioctls
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:04 -05:00
Corey Minyard f0258c9530 ipmi_ssif: Remove usecount handling
Now that we can handle hot remove there is no need for usecounts
for interfaces.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:02 -05:00
Corey Minyard 8d17929ad5 ipmi: Remove condition on interface shutdown
Now that the interfaces have shutdown handlers, this no longer
needs to be conditional.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:01 -05:00
Corey Minyard a313dec640 ipmi_ssif: Convert over to a shutdown handler
Move the shutdown handling to a shutdown function called from
the IPMI core code.  That makes for a cleaner shutdown.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:23:00 -05:00
Corey Minyard 7960f18a56 ipmi_si: Convert over to a shutdown handler
Move the shutdown handling to a shutdown function called from
the IPMI core code.  That makes for a cleaner shutdown.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:59 -05:00
Corey Minyard e86ee2d44b ipmi: Rework locking and shutdown for hot remove
To handle hot remove of interfaces, a lot of rework had to be
done to the locking.  Several things were switched over to srcu
and shutdown for users and interfaces was added for cleaner
shutdown.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:58 -05:00
Corey Minyard ac93bd0c9e ipmi: Fix some counter issues
Counters would not be pegged properly on some errors.  Have
deliver_response() return an error so the counters can be
incremented properly.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:57 -05:00
Corey Minyard a567b62300 ipmi: Change ipmi_smi_t to struct ipmi_smi *
Get rid of this coding style violation in the user files.  Include
files will come later.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:56 -05:00
Corey Minyard 2911c9886c ipmi: Rename ipmi_user_t to struct ipmi_user *
Get rid of that non-compliance in the user files.  Include files
will come later.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:55 -05:00
Corey Minyard 6aa2dd0092 ipmi_devintf: Small lock rework
The mutex didn't really serve any useful purpose, from what I can
tell, and it would just get in the way.  So remove it.

Removing that required a mutex around the default value setting and
getting, so just use the receive mutex for that.

Also pull the fasync stuff outside of the lock for adding the data
to the queue, since it didn't need to be there.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:53 -05:00
Corey Minyard aa7a8f9e1b ipmi: Clean up some style issues in the message handler
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:52 -05:00
Corey Minyard 42c2dc7e66 ipmi: Break up i_ipmi_request
It was huge, and easily broken into pieces.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:51 -05:00
Corey Minyard c81c5fc212 ipmi:devintf: Clean up some coding style issues
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:49 -05:00
Corey Minyard f41382ae57 ipmi: Clean up some debug code
Replace ifdefs in the code with a simple function.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2018-04-18 10:22:48 -05:00