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559778 commits

Author SHA1 Message Date
Manikanta Pubbisetty
98dd2b92bb ath10k: add fw_stats support to 10.4 firmware
This patch adds support for getting firmware debug stats in 10.4 fw.

Signed-off-by: Manikanta Pubbisetty <c_mpubbi@qti.qualcomm.com>
Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:54:45 +02:00
Alan Liu
a81a98cee9 ath10k: add FW API support to test mode
Add WMI-TLV and FW API support in ath10k testmode.
Ath10k can get right wmi command format from UTF image
to communicate UTF firmware.

Signed-off-by: Alan Liu <alanliu@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-29 12:48:01 +02:00
Jaehoon Chung
7cc8d58022 mmc: dw_mmc: fix the wrong setting for UHS-DDR50 mode
When card is running with DDR mode, dwmmc needs to set DDR_REG bit at
UHS_REG register.
Before this patch, dwmmc controller doesn't consider this.
If this patch is not applied, CRC or other error shoulds be occurred.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-29 11:00:43 +01:00
Jaehoon Chung
98daafd8a0 mmc: dw_mmc: fix the CardThreshold boundary at CardThrCtl register
According to DesignWare DoC file, CardThreshold bit should be
bit[27:16].
So it's correct to use (0xFFF << 16), not (0x1FFF << 16).

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-29 11:00:37 +01:00
Dan Carpenter
4539d36ef2 mmc: dw_mmc: NULL dereference in error message
The "host->dms->ch" pointer is NULL here so we can't use it to print the
error message.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-29 11:00:03 +01:00
Ingo Molnar
6fc774ef4c perf/core improvements and fixes:
User visible:
 
 - Enable per-event perf_event_attr.inherit setting by config terms, i.e.
   this becomes possible:
 
       $ perf record -e cycles/inherit/ -e instructions/no-inherit/
 
   This affects the default, that can be changed globally using the --no-inherit
   option.
 
   This fine grained control appeared in the eBPF patchkit, but this added
   flexibility may end up being useful in other scenarios (Wang Nan)
 
 - Setup pager when printing usage and help, we have long lists of options,
   better use the pager like we do with normal tooling output, i.e. when needed,
   and including any error messages in the paged output (Namhyung Kim)
 
 - Search for more options when passing args to -h, e.g.: (Arnaldo Carvalho de Melo)
 
   $ perf report -h interface
 
    Usage: perf report [<options>]
 
     --gtk    Use the GTK2 interface
     --stdio  Use the stdio interface
     --tui    Use the TUI interface
 
 - Fix reading separate debuginfo files based on a build-id, problem
   found on a Debian system (Dima Kogan)
 
 - Fix endless loop when splitting kallsyms symbols per section for
   handling kcore files, problem found on a s390x system (Jiri Olsa)
 
 Infrastructure:
 
 - Prep work for the 'perf stat record' work that will allow generating
   perf.data files with counting data in addition to the sampling mode
   we have now (Jiri Olsa)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:

  - Enable per-event perf_event_attr.inherit setting by config terms, i.e.
    this becomes possible:

        $ perf record -e cycles/inherit/ -e instructions/no-inherit/

    This affects the default, that can be changed globally using the --no-inherit
    option.

    This fine grained control appeared in the eBPF patchkit, but this added
    flexibility may end up being useful in other scenarios. (Wang Nan)

  - Setup pager when printing usage and help, we have long lists of options,
    better use the pager like we do with normal tooling output, i.e. when needed,
    and including any error messages in the paged output. (Namhyung Kim)

  - Search for more options when passing args to -h, e.g.: (Arnaldo Carvalho de Melo)

    $ perf report -h interface

     Usage: perf report [<options>]

      --gtk    Use the GTK2 interface
      --stdio  Use the stdio interface
      --tui    Use the TUI interface

  - Fix reading separate debuginfo files based on a build-id, problem
    found on a Debian system. (Dima Kogan)

  - Fix endless loop when splitting kallsyms symbols per section for
    handling kcore files, problem found on a s390x system. (Jiri Olsa)

Infrastructure changes:

  - Prep work for the 'perf stat record' work that will allow generating
    perf.data files with counting data in addition to the sampling mode
    we have now (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-10-29 10:29:18 +01:00
Matias Bjørling
ca0640850e nvme: LightNVM support
The first generation of Open-Channel SSDs is based on NVMe. The NVMe
driver is extended with support for the LightNVM command set.

Detection is made through PCI IDs. Current supported devices are the
qemu nvme simulator and CNEX Labs Westlake SSD. The qemu nvme enables
support through vendor specific bits in the namespace identification and
the CNEX Labs Westlake SSD implements a LightNVM compatible firmware and
is detected using the same method as qemu.

After detection, vendor specific codes are used to identify the device
and enumerate supported features.

Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Javier González <jg@lightnvm.io>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-29 17:57:29 +09:00
Matias Bjørling
ae1519ec44 rrpc: Round-robin sector target with cost-based gc
This target allows an Open-Channel SSD to be exposed asas a block
device.

It implements a round-robin approach for sector allocation,
together with a greedy cost-based garbage collector.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-29 16:21:42 +09:00
Matias Bjørling
48add0f5a6 gennvm: Generic NVM manager
The implementation for Open-Channel SSDs is divided into media
management and targets. This patch implements a generic media manager
for open-channel SSDs. After a media manager has been initialized,
single or multiple targets can be instantiated with the media managed as
the backend.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-29 16:21:42 +09:00
Matias Bjørling
cd9e9808d1 lightnvm: Support for Open-Channel SSDs
Open-channel SSDs are devices that share responsibilities with the host
in order to implement and maintain features that typical SSDs keep
strictly in firmware. These include (i) the Flash Translation Layer
(FTL), (ii) bad block management, and (iii) hardware units such as the
flash controller, the interface controller, and large amounts of flash
chips. In this way, Open-channels SSDs exposes direct access to their
physical flash storage, while keeping a subset of the internal features
of SSDs.

LightNVM is a specification that gives support to Open-channel SSDs
LightNVM allows the host to manage data placement, garbage collection,
and parallelism. Device specific responsibilities such as bad block
management, FTL extensions to support atomic IOs, or metadata
persistence are still handled by the device.

The implementation of LightNVM consists of two parts: core and
(multiple) targets. The core implements functionality shared across
targets. This is initialization, teardown and statistics. The targets
implement the interface that exposes physical flash to user-space
applications. Examples of such targets include key-value store,
object-store, as well as traditional block devices, which can be
application-specific.

Contributions in this patch from:

  Javier Gonzalez <jg@lightnvm.io>
  Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
  Jesper Madsen <jmad@itu.dk>

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-29 16:21:42 +09:00
Marc Titinger
001e2e730c hwmon: (ina2xx) give precedence to DT over checking for platform data.
when checking for the value of the shunt resistor.

Signed-off-by: Marc Titinger <mtitinger@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-10-28 21:53:15 -07:00
Marc Titinger
a0de56c81f hwmon: (ina2xx) convert driver to using regmap
Any sysfs "show" read access from the client app will result in reading
all registers (8 with ina226). Depending on the host this can limit the
best achievable read rate.

This changeset allows for individual register accesses through regmap.

Tested with BeagleBone Black (Baylibre-ACME) and ina226.

Signed-off-by: Marc Titinger <mtitinger@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-10-28 21:53:00 -07:00
Tejun Heo
d574567537 cgroup: fix race condition around termination check in css_task_iter_next()
css_task_iter_next() checked @it->cur_task before grabbing
css_set_lock and assumed that the result won't change afterwards;
however, tasks could leave the cgroup being iterated terminating the
iterator before css_task_lock is acquired.  If this happens,
css_task_iter_next() tries to calculate the current task from NULL
cg_list pointer leading to the following oops.

 BUG: unable to handle kernel paging request at fffffffffffff7d0
 IP: [<ffffffff810d5f22>] css_task_iter_next+0x42/0x80
 ...
 CPU: 4 PID: 6391 Comm: JobQDisp2 Not tainted 4.0.9-22_fbk4_rc3_81616_ge8d9cb6 #1
 Hardware name: Quanta Freedom/Winterfell, BIOS F03_3B08 03/04/2014
 task: ffff880868e46400 ti: ffff88083404c000 task.ti: ffff88083404c000
 RIP: 0010:[<ffffffff810d5f22>]  [<ffffffff810d5f22>] css_task_iter_next+0x42/0x80
 RSP: 0018:ffff88083404fd28  EFLAGS: 00010246
 RAX: 0000000000000000 RBX: ffff88083404fd68 RCX: ffff8804697fb8b0
 RDX: fffffffffffff7c0 RSI: ffff8803b7dff800 RDI: ffffffff822c0278
 RBP: ffff88083404fd38 R08: 0000000000017160 R09: ffff88046f4070c0
 R10: ffffffff810d61f7 R11: 0000000000000293 R12: ffff880863bf8400
 R13: ffff88046b87fd80 R14: 0000000000000000 R15: ffff88083404fe58
 FS:  00007fa0567e2700(0000) GS:ffff88046f900000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: fffffffffffff7d0 CR3: 0000000469568000 CR4: 00000000001406e0
 Stack:
  0000000000000246 0000000000000000 ffff88083404fde8 ffffffff810d6248
  ffff88083404fd68 0000000000000000 ffff8803b7dff800 000001ef000001ee
  0000000000000000 0000000000000000 ffff880863bf8568 0000000000000000
 Call Trace:
  [<ffffffff810d6248>] cgroup_pidlist_start+0x258/0x550
  [<ffffffff810cf66d>] cgroup_seqfile_start+0x1d/0x20
  [<ffffffff8121f8ef>] kernfs_seq_start+0x5f/0xa0
  [<ffffffff811cab76>] seq_read+0x166/0x380
  [<ffffffff812200fd>] kernfs_fop_read+0x11d/0x180
  [<ffffffff811a7398>] __vfs_read+0x18/0x50
  [<ffffffff811a745d>] vfs_read+0x8d/0x150
  [<ffffffff811a756f>] SyS_read+0x4f/0xb0
  [<ffffffff818d4772>] system_call_fastpath+0x12/0x17

Fix it by moving the termination condition check inside css_set_lock.
@it->cur_task is now cleared after being put and @it->task_pos is
tested for termination instead of @it->cset_pos as they indicate the
same condition and @it->task_pos is what's being dereferenced.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Calvin Owens <calvinowens@fb.com>
Fixes: ed27b9f7a1 ("cgroup: don't hold css_set_rwsem across css task iteration")
Acked-by: Zefan Li <lizefan@huawei.com>
2015-10-29 11:43:05 +09:00
Sagi Grimberg
13d3e895fa RDMA/nes: Remove old FRWR API
No ULP uses it anymore, go ahead and remove it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:32:29 -04:00
Sagi Grimberg
b8533eccc8 IB/qib: Remove old FRWR API
No ULP uses it anymore, go ahead and remove it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:32:29 -04:00
Sagi Grimberg
d3cfd002e6 iw_cxgb4: Remove old FRWR API
No ULP uses it anymore, go ahead and remove it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:32:29 -04:00
Sagi Grimberg
94e585cb74 RDMA/cxgb3: Remove old FRWR API
No ULP uses it anymore, go ahead and remove it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:19 -04:00
Sagi Grimberg
191cfed565 RDMA/ocrdma: Remove old FRWR API
No ULP uses it anymore, go ahead and remove it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:19 -04:00
Sagi Grimberg
e761c67fbf IB/mlx4: Remove old FRWR API support
No ULP uses it anymore, go ahead and remove it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:19 -04:00
Sagi Grimberg
dd01e66a6c IB/mlx5: Remove old FRWR API support
No ULP uses it anymore, go ahead and remove it.
Keep only the local invalidate part of the handlers.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:19 -04:00
Sagi Grimberg
9a21be531c IB/srp: Dont allocate a page vector when using fast_reg
The new fast registration API does not reuqire a page vector
so we can't avoid allocating it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:19 -04:00
Sagi Grimberg
51c2b8e2ac IB/srp: Remove srp_finish_mapping
No callers left, remove it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:19 -04:00
Sagi Grimberg
f7f7aab1a5 IB/srp: Convert to new registration API
Instead of constructing a page list, call ib_map_mr_sg
and post a new ib_reg_wr. srp_map_finish_fr now returns
the number of sg elements registered.

Remove srp_finish_mapping since no one is calling it.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:19 -04:00
Sagi Grimberg
26630e8a09 IB/srp: Split srp_map_sg
This is a preparation patch for the new registration API
conversion. It splits srp_map_sg per registration strategy
(srp_map_sg[fmr|fr|dma]. On its own it adds some code duplication,
but it makes the API switch easier to comprehend.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
9ddc87374a RDS/IW: Convert to new memory registration API
Get rid of fast_reg page list and its construction.
Instead, just pass the RDS sg list to ib_map_mr_sg
and post the new ib_reg_wr.

This is done both for server IW RDMA_READ registration
and the client remote key registration.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
412a15c0fe svcrdma: Port to new memory registration API
Instead of maintaining a fastreg page list, keep an sg table
and convert an array of pages to a sg list. Then call ib_map_mr_sg
and construct ib_reg_wr.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Selvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
4143f34e01 xprtrdma: Port to new memory registration API
Instead of maintaining a fastreg page list, keep an sg table
and convert an array of pages to a sg list. Then call ib_map_mr_sg
and construct ib_reg_wr.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Selvin Xavier <selvin.xavier@avagotech.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
16c2d702f2 iser-target: Port to new memory registration API
Remove fastreg page list allocation as the page vector
is now private to the provider. Instead of constructing
the page list and fast_req work request, call ib_map_mr_sg
and construct ib_reg_wr.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
3940588500 IB/iser: Port to new fast registration API
Remove fastreg page list allocation as the page vector
is now private to the provider. Instead of constructing
the page list and fast_req work request, call ib_map_mr_sg
and construct ib_reg_wr.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
0ba24dd39a RDMA/nes: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in nes_mr and populate it when
nes_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by duplicating IB_WR_FAST_REG_MR handling and take the
needed information from different places:
- page_size, iova, length (ib_mr)
- page array (nes_mr)
- key, access flags (ib_reg_wr)

The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
38071a461f IB/qib: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in qib_mr and populate it when
qib_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by duplicating qib_fastreg_mr just take the needed information
from different places:
- page_size, iova, length (ib_mr)
- page array (qib_mr)
- key, access flags (ib_reg_wr)

The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
8376b86de7 iw_cxgb4: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in c4iw_mr and populate it when
c4iw_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by duplicating build_fastreg just take the needed information
from different places:
- page_size, iova, length (ib_mr)
- page array (c4iw_mr)
- key, access flags (ib_reg_wr)

The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
14fb4171ab RDMA/cxgb3: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in iwch_mr and populate it when
iwch_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by duplicating build_fastreg just take the needed information
from different places:
- page_size, iova, length (ib_mr)
- page array (iwch_mr)
- key, access flags (ib_reg_wr)

The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
2eaa1c5647 RDMA/ocrdma: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in ocrdma_mr and populate it when
ocrdma_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by duplicating IB_WR_FAST_REG_MR, but take the needed
information from different places:
- page_size, iova, length, access flags (ib_mr)
- page array (ocrdma_mr)
- key (ib_reg_wr)

The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:18 -04:00
Sagi Grimberg
1b2cd0fc67 IB/mlx4: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in mlx4_ib_mr and populate it when
mlx4_ib_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by setting the exact WQE as IB_WR_FAST_REG_MR, just take the
needed information from different places:
- page_size, iova, length, access flags (ib_mr)
- page array (mlx4_ib_mr)
- key (ib_reg_wr)

The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:17 -04:00
Sagi Grimberg
8a187ee52b IB/mlx5: Support the new memory registration API
Support the new memory registration API by allocating a
private page list array in mlx5_ib_mr and populate it when
mlx5_ib_map_mr_sg is invoked. Also, support IB_WR_REG_MR
by setting the exact WQE as IB_WR_FAST_REG_MR, just take the
needed information from different places:
- page_size, iova, length, access flags (ib_mr)
- page array (mlx5_ib_mr)
- key (ib_reg_wr)

The IB_WR_FAST_REG_MR handlers will be removed later when
all the ULPs will be converted.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:17 -04:00
Sagi Grimberg
a706000916 IB/mlx5: Remove dead fmr code
Just function declarations - no need for those
laying arround. If for some reason someone will want
FMR support in mlx5, it should be easy enough to restore
a few structs.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:17 -04:00
Sagi Grimberg
4c67e2bfc8 IB/core: Introduce new fast registration API
The new fast registration  verb ib_map_mr_sg receives a scatterlist
and converts it to a page list under the verbs API thus hiding
the specific HW mapping details away from the consumer.

The provider drivers are provided with a generic helper ib_sg_to_pages
that converts a scatterlist into a vector of page addresses. The
drivers can still perform any HW specific page address setting
by passing a set_page function pointer which will be invoked for
each page address. This allows drivers to avoid keeping a shadow
page vectors and convert them to HW specific translations by doing
extra copies.

This API will allow ULPs to remove the duplicated code of constructing
a page vector from a given sg list.

The send work request ib_reg_wr also shrinks as it will contain only
mr, key and access flags in addition.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 22:27:17 -04:00
Doug Ledford
63e8790d39 Merge branch 'wr-cleanup' into k.o/for-4.4 2015-10-28 22:23:34 -04:00
Doug Ledford
eb14ab3ba1 Merge branch 'wr-cleanup' of git://git.infradead.org/users/hch/rdma into wr-cleanup
Signed-off-by: Doug Ledford <dledford@redhat.com>

Conflicts:
	drivers/infiniband/ulp/isert/ib_isert.c - Commit 4366b19ca5
	(iser-target: Change the recv buffers posting logic) changed the
	logic in isert_put_datain() and had to be hand merged
2015-10-28 22:21:09 -04:00
Maxime Ripard
67d25f0d4e dmaengine: hdmac: Add scatter-gathered memset support
Just like memset support, the HDMAC might be used to do a memset over a
discontiguous memory area.

In such a case, we'll just build up a chain of memset descriptors over the
contiguous chunks of memory to set, in order to allow such a support.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-10-29 10:41:16 +09:00
Maxime Ripard
ce2a673d66 dmaengine: hdmac: factorise memset descriptor allocation
The memset and scatter gathered memset are going to use some common logic
to create their descriptors.

Move that logic into a function of its own so that we can share it with the
future memset_sg callback.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-10-29 10:40:09 +09:00
Vinod Koul
0d49fee9c1 Merge branch 'topic/dw' into for-linus 2015-10-29 10:31:11 +09:00
Kurt Kanzenbach
e3cc3136df Staging: rtl8192u: ieee80211: added missing blank lines
This patch resolves the following checkpatch warnings:
  - WARNING: Missing a blank line after declarations

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:10:55 +09:00
Kurt Kanzenbach
0d92e43496 Staging: rtl8192u: ieee80211: removed unnecessary braces
This patch fixes the following checkpatch warning:
  - WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:10:55 +09:00
Kurt Kanzenbach
e1cb1af28a Staging: rtl8192u: ieee80211: corrected block comments
This patch reformats some block comments in order to
match the Linux kernel coding style.

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:10:55 +09:00
Kurt Kanzenbach
7bdb7d554e Staging: rtl8192u: ieee80211: corrected indent
This patch corrects the indentation in five instances in the
ieee80211_crypt_tkip.c file.

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:10:55 +09:00
Kurt Kanzenbach
65ed40ddea Staging: rtl8192u: ieee80211: added missing spaces after if
This patch fixes the following checkpatch error:
  - ERROR: space required before the open parenthesis '('

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:10:55 +09:00
Kurt Kanzenbach
a4255e7c92 Staging: rtl8192u: ieee80211: added missing space around '='
This patch fixes the following checkpatch error:
  - ERROR: spaces required around that '='

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:10:55 +09:00
Kurt Kanzenbach
df58f2b9c8 Staging: rtl8192u: ieee80211: fixed position of else statements
This patch fixes the following checkpatch error:
  - ERROR: else should follow close brace '}'

Signed-off-by: Kurt Kanzenbach <kurt@kmk-computers.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-29 09:10:55 +09:00