21 Sep, 2016
1 commit
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Move mic/mpssd examples to samples and remove it from Documentation
Makefile. Create a new Makefile to build mic/mpssd. It can be built
from top level directory or from mic/mpssd directory:Run make -C samples/mic/mpssd or cd samples/mic/mpssd; make
Acked-by: Jonathan Corbet
Signed-off-by: Shuah Khan
04 Jun, 2016
1 commit
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The compilation emits a warning in function ‘snprintf’,
inlined from ‘set_cmdline’ at
../Documentation/mic/mpssd/mpssd.c:1541:9:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10:
warning: call to __builtin___snprintf_chk will always overflow
destination bufferThis was introduced in commit f4a66c204482 ("misc: mic: Update MIC host
daemon with COSM changes") and is fixed by reverting the changes to the
size argument of these snprintf statements.Cc: Ashutosh Dixit
Signed-off-by: Mike Danese
Signed-off-by: Jonathan Corbet
18 Mar, 2016
1 commit
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Pull char/misc updates from Greg KH:
"Here is the big char/misc driver update for 4.6-rc1.The majority of the patches here is hwtracing and some new mic
drivers, but there's a lot of other driver updates as well. Full
details in the shortlog.All have been in linux-next for a while with no reported issues"
* tag 'char-misc-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (238 commits)
goldfish: Fix build error of missing ioremap on UM
nvmem: mediatek: Fix later provider initialization
nvmem: imx-ocotp: Fix return value of imx_ocotp_read
nvmem: Fix dependencies for !HAS_IOMEM archs
char: genrtc: replace blacklist with whitelist
drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular
drivers: char: mem: fix IS_ERROR_VALUE usage
char: xillybus: Fix internal data structure initialization
pch_phub: return -ENODATA if ROM can't be mapped
Drivers: hv: vmbus: Support kexec on ws2012 r2 and above
Drivers: hv: vmbus: Support handling messages on multiple CPUs
Drivers: hv: utils: Remove util transport handler from list if registration fails
Drivers: hv: util: Pass the channel information during the init call
Drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbus_wait_for_unload()
Drivers: hv: vmbus: remove code duplication in message handling
Drivers: hv: vmbus: avoid wait_for_completion() on crash
Drivers: hv: vmbus: don't loose HVMSG_TIMER_EXPIRED messages
misc: at24: replace memory_accessor with nvmem_device_read
eeprom: 93xx46: extend driver to plug into the NVMEM framework
eeprom: at25: extend driver to plug into the NVMEM framework
...
18 Feb, 2016
1 commit
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Signed int - unsigned int comparison fixed in mpssd, prctl, ptp, and
timers in Documentation. In places where 'int argc' and 'const char
**argv' are not used, they are replaced with voidDocumentation/mic/mpssd/mpssd.c: Fixed comparison in sum_iovec_len and
disp_iovecDocumentation/prctl/disable-tsc-ctxt-sw-stress-test.c: main signature
changed to void, as parameters 'argc' and 'argv' are never usedDocumentation/prctl/disable-tsc-on-off-stress-test.c: main signature
changed to voidDocumentation/prctl/disable-tsc-test.c: main signature changed to void
Documentation/ptp/testptp.c: Sign comparison fix
Documentation/timers/hpet_example.c: Sign comparision fixSigned-off-by: Mahesh Khanwalkar
Signed-off-by: Jonathan Corbet
10 Feb, 2016
1 commit
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This patch modifies the MIC host and card drivers to start using the
VOP driver. The MIC host and card drivers now implement the VOP bus
operations and register a VOP device on the VOP bus. MIC driver stack
documentation is also updated to include the new VOP driver.Reviewed-by: Ashutosh Dixit
Signed-off-by: Sudeep Dutt
Signed-off-by: Greg Kroah-Hartman
04 Oct, 2015
1 commit
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This patch updates the MIC host daemon to work with corresponding
changes in COSM. Other MIC daemon fixes, cleanups and enhancements as
are also rolled into this patch. Changes to MIC sysfs ABI which go
into effect with this patch are also documented.Reviewed-by: Sudeep Dutt
Signed-off-by: Dasaratharaman Chandramouli
Signed-off-by: Ashutosh Dixit
Signed-off-by: Greg Kroah-Hartman
27 Jun, 2015
1 commit
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Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver pull request for 4.2-rc1.Lots of mei, extcon, coresight, uio, mic, and other driver updates in
here. Full details in the shortlog. All of these have been in
linux-next for some time with no reported problems"* tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits)
mei: me: wait for power gating exit confirmation
mei: reset flow control on the last client disconnection
MAINTAINERS: mei: add mei_cl_bus.h to maintained file list
misc: sram: sort and clean up included headers
misc: sram: move reserved block logic out of probe function
misc: sram: add private struct device and virt_base members
misc: sram: report correct SRAM pool size
misc: sram: bump error message level on unclean driver unbinding
misc: sram: fix device node reference leak on error
misc: sram: fix enabled clock leak on error path
misc: mic: Fix reported static checker warning
misc: mic: Fix randconfig build error by including errno.h
uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
uio: pruss: Add CONFIG_HAS_IOMEM dependence
uio: pruss: Include
extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
parport: check exclusive access before register
w1: use correct lock on error in w1_seq_show()
...
23 Jun, 2015
1 commit
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The following was seen in linux-next build coverage, which is somewhat
unique since it uses powerpc host to cross compile x86:Documentation/mic/mpssd/mpssd.c:93:10: error: braced-group within expression allowed only inside a function
Documentation/mic/mpssd/mpssd.c:96:10: error: braced-group within expression allowed only inside a function
Documentation/mic/mpssd/mpssd.c:113:10: error: braced-group within expression allowed only inside a function
Documentation/mic/mpssd/mpssd.c:116:10: error: braced-group within expression allowed only inside a function
Documentation/mic/mpssd/mpssd.c:119:3: error: initializer element is not constant
Documentation/mic/mpssd/mpssd.c:119:3: error: (near initialization for 'virtnet_dev_page.host_features')
Documentation/mic/mpssd/mpssd.c:146:10: error: braced-group within expression allowed only inside a function
Documentation/mic/mpssd/mpssd.c:149:3: error: initializer element is not constant
Documentation/mic/mpssd/mpssd.c:149:3: error: (near initialization for 'virtblk_dev_page.host_features')
Documentation/mic/mpssd/mpssd.c:151:3: error: initializer element is not constant
Documentation/mic/mpssd/mpssd.c:151:3: error: (near initialization for 'virtblk_dev_page.blk_config.seg_max')
Documentation/mic/mpssd/mpssd.c:152:3: error: initializer element is not constant
Documentation/mic/mpssd/mpssd.c:152:3: error: (near initialization for 'virtblk_dev_page.blk_config.capacity')
make[5]: *** [Documentation/mic/mpssd/mpssd.o] Error 1Since it is building /usr/sbin/mpssd and /usr/sbin/micctrl
for x86_64 and the original authors indicated[1] that:MIC card is expected to work with x86_64 host, not with ppc64.
We have never compiled on ppc host..so it probably makes sense to just skip building these userspace
programs when we are cross compiling.[1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-December/123296.html
Cc: Jonathan Corbet
Cc: Ashutosh Dixit
Cc: Sudeep Dutt
Cc: Caz Yokoyama
Cc: linux-doc@vger.kernel.org
Signed-off-by: Paul Gortmaker
Signed-off-by: Jonathan Corbet
25 May, 2015
2 commits
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modprobe SCIF driver upon start and remove it upon unload
Reviewed-by: Nikhil Rao
Reviewed-by: Ashutosh Dixit
Signed-off-by: Sudeep Dutt
Signed-off-by: Greg Kroah-Hartman -
This patch introduces the SCIF documentation in the header file
and describes the IOCTL interface for user mode. mic_overview.txt
is updated with documentation on SCIF and a new document
describing SCIF in more details is available in scif_overview.txt.Reviewed-by: Nikhil Rao
Reviewed-by: Ashutosh Dixit
Signed-off-by: Sudeep Dutt
Signed-off-by: Greg Kroah-Hartman
06 Dec, 2014
1 commit
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mic/mpssd along with MIC drivers are currently only usable on
x86_64. So build mic/mpssd only for x86_64 to avoid build breaks on
big-endian systems.Reported-by: Daniel Borkmann
Reported-by: Dan Streetman
Suggested-by: Peter Foley
Signed-off-by: Ashutosh Dixit
Signed-off-by: Jonathan Corbet
03 Oct, 2014
1 commit
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sysfs.c includes mpssd.h which includes virtio_ids.h.
sysfs.c doesn't have the proper include flags set to use the latest
headers, so this causes a build error if the system headers are too old.Signed-off-by: Peter Foley
Cc: rdunlap@infradead.org
Cc: linux-doc@vger.kernel.org
Cc: sudeep.dutt@intel.com
Cc: nikhil.rao@intel.com
Cc: ashutosh.dixit@intel.com
Cc: akpm@linux-foundation.org
Cc: gregkh@linuxfoundation.org
Cc: harshavardhan.r.kharche@intel.com
Cc: caz.yokoyama@intel.com
Cc: dasaratharaman.chandramouli@intel.com
Cc: jkosina@suse.cz
Signed-off-by: Jiri Kosina
26 Sep, 2014
3 commits
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glibc 2.9 introduced the htole macros, add them to
tools/include to support older versions of glibc.Reported-by: Andrew Morton
Signed-off-by: Peter Foley
Signed-off-by: Randy Dunlap
Signed-off-by: Jiri Kosina -
Fix a few warnings that gcc emits during a default build.
Signed-off-by: Peter Foley
Signed-off-by: Randy Dunlap
Signed-off-by: Jiri Kosina -
Add a bunch of previously unbuilt source files to the Documentation build
machinery.Signed-off-by: Peter Foley
Signed-off-by: Randy Dunlap
Signed-off-by: Jiri Kosina
12 Jul, 2014
2 commits
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modprobe dma driver upon start and remove it upon unload.
Signed-off-by: Siva Yerramreddy
Signed-off-by: Greg Kroah-Hartman -
Added an overview of mic bus and dma driver.
Reviewed-by: Ashutosh Dixit
Reviewed-by: Nikhil Rao
Reviewed-by: Sudeep Dutt
Signed-off-by: Siva Yerramreddy
Signed-off-by: Greg Kroah-Hartman
28 Nov, 2013
3 commits
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Endianness issues are now consistent as per the documentation in
host/mic_virtio.h. Sparse warnings related to endianness are also fixed.
Note that the MIC driver implementation assumes that the host can be
both BE or LE whereas the card is always LE.Reported-by: Fengguang Wu
Reviewed-by: Sudeep Dutt
Reviewed-by: Nikhil Rao
Signed-off-by: Ashutosh Dixit
Signed-off-by: Greg Kroah-Hartman -
Avoid declaring ALIGN() and __aligned() in
include/uapi/linux/mic_common.h since they pollute user space
namespace. Also, mic_aligned_size() can be simply replaced simply by
sizeof() since all structures where mic_aligned_size() is used are
declared using __attribute__ ((aligned(8)));--
>From mail from H Peter Anvin about this:On Fri, Nov 08, 2013 H Peter Anvin wrote:
Subject: Namespace pollution in mic_common.hThis puts two macros, ALIGN() and __aligned(), into arbitrary user space
namespace. This really isn't safe or acceptable, especially since those
symbols are highly generic.
...
When these structures are forced-aligned, they will in fact have padding
automatically added by the compiler to an 8-byte boundary anyway, so
mic_aligned_size() does nothing.
...Reported-by: H Peter Anvin
Reviewed-by: Sudeep Dutt
Signed-off-by: Nikhil Rao
Signed-off-by: Ashutosh Dixit
Signed-off-by: Greg Kroah-Hartman -
MIC user space daemon poll's on sysfs changes. The documentation for
sysfs_poll(...) in fs/sysfs/file.c states that "Once poll/select
indicates that the value has changed, you need to close and re-open the
file, or seek to 0 and read again". This step was missed out earlier and
resulted in the daemon spinning continuously rather than getting blocked
in 'poll'. This bug was exposed by commit aea585ef8fa65163 introduced as
part of sysfs changes in 3.13-rc1. A seek to 0 has been introduced to
fix it.Reviewed-by: Sudeep Dutt
Signed-off-by: Ashutosh Dixit
Signed-off-by: Greg Kroah-Hartman
06 Oct, 2013
1 commit
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This patch enables support for OSPM suspend and resume in the MIC
driver. During a host suspend event, the driver performs an
orderly shutdown of the cards if they are online. Upon resume, any
cards that were previously online before suspend are rebooted.
The driver performs an orderly shutdown of the card primarily to
ensure that applications in the card are terminated and mounted
devices are safely un-mounted before the card is powered down in
the event of an OSPM suspend.The driver makes use of the MIC daemon to accomplish OSPM suspend
and resume. The driver registers a PM notifier per MIC device.
The devices get notified synchronously during PM_SUSPEND_PREPARE and
PM_POST_SUSPEND phases.During the PM_SUSPEND_PREPARE phase, the driver performs one of the
following three tasks.
1) If the card is 'offline', the driver sets the card to a
'suspended' state and returns.
2) If the card is 'online', the driver initiates card shutdown by
setting the card state to suspending. This notifies the MIC
daemon which invokes shutdown and sets card state to 'suspended'.
The driver returns after the shutdown is complete.
3) If the card is already being shutdown, possibly by a host user
space application, the driver sets the card state to 'suspended'
and returns after the shutdown is complete.During the PM_POST_SUSPEND phase, the driver simply notifies the
daemon and returns. The daemon boots those cards that were previously
online during the suspend phase.Signed-off-by: Ashutosh Dixit
Signed-off-by: Nikhil Rao
Signed-off-by: Harshavardhan R Kharche
Signed-off-by: Sudeep Dutt
Signed-off-by: Dasaratharaman Chandramouli
Signed-off-by: Greg Kroah-Hartman
04 Oct, 2013
1 commit
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Specifying gcc format function attribute for mpsslog(..) and
building on 32 bit systems exposed a few build issues in the
sample MIC daemon which are fixed by this patch. Some of these
changes were authored by Joe Perches @
https://lkml.org/lkml/2013/9/27/419Reported-by: Joe Perches
Signed-off-by: Ashutosh Dixit
Signed-off-by: Caz Yokoyama
Signed-off-by: Sudeep Dutt
Signed-off-by: Greg Kroah-Hartman
28 Sep, 2013
1 commit
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These changes were mostly authored by Joe Perches
@ https://lkml.org/lkml/2013/9/5/602Reported-by: Joe Perches
Signed-off-by: Ashutosh Dixit
Signed-off-by: Dasaratharaman Chandramouli
Signed-off-by: Nikhil Rao
Signed-off-by: Harshavardhan R Kharche
Signed-off-by: Sudeep Dutt
Signed-off-by: Greg Kroah-Hartman
27 Sep, 2013
1 commit
-
This patch introduces a sample user space daemon which
implements the virtio device backends on the host. The daemon
creates/removes/configures virtio device backends by communicating with
the Intel MIC Host Driver. The virtio devices currently supported are
virtio net, virtio console and virtio block. Virtio net supports TSO/GSO.
The daemon also monitors card shutdown status and takes appropriate actions
like killing the virtio backends and resetting the card upon card shutdown
and crashes.Co-author: Ashutosh Dixit
Co-author: Sudeep Dutt
Signed-off-by: Ashutosh Dixit
Signed-off-by: Caz Yokoyama
Signed-off-by: Dasaratharaman Chandramouli
Signed-off-by: Nikhil Rao
Signed-off-by: Harshavardhan R Kharche
Signed-off-by: Sudeep Dutt
Acked-by: Yaozu (Eddie) Dong
Signed-off-by: Greg Kroah-Hartman
