This patch is a prelimary patch required to
coalesce acks.

The routine to "schedule" a QP for sending a NAK is
now centralized in rc_defer_ack().  The flag is changed
for clarity since the all acks will potentially use
the deferral  mechanism.
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Disabling one receive context when RX_DMA is receiving a packet can cause
incorrect packet delivery for a subsequent packet on another receive
context.

This is resolved by doing the following:
1. Programming dummy tail address for every receive context
   before enabling it
2. While deallocating receive context resetting tail address
   to dummy address
3. Leaving the dummy address in when disabling tail update
4. When disabling receive context leaving tail update enabled
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: NMitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: NMark F. Brown <mark.f.brown@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Now that we have a multi-threaded work queue we precomputed and store the SC
and SDE on RC and UC QPs for faster access.
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: NIra Weiny <ira.weiny@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The workqueue is currently single threaded per port which for a small number of
SDMA engines is ok.

For hfi1, the there are up to 16 SDMA engines that can be fed descriptors in
parallel.

Use alloc_workqueue with a workqueue limit of the number of sdma engines and
with WQ_CPU_INTENSIVE and WQ_HIGHPRI specified.

Then change send to use the new scheduler which no longer needs to get the
s_lock
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: NIra Weiny <ira.weiny@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Move hfi1_migrate_qp from ruc.c to qp.[hc] in prep for modifying the QP
workqueue.
Signed-off-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: NIra Weiny <ira.weiny@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use kmalloc_array instead of kmalloc to allocate memory for an array.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove unnecessary variable 'err' from functions c2_reject() and
c2_service_destroy() since it can be replaced by a single line of
code instead.
Signed-off-by: NAmitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Cleanup errors from checkpatch.pl.
Signed-off-by: NOthmar Pasteka <pasteka@kabsi.at>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes trailling */ from vbuschannel.h and alignment issue on the
same comment block
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes the checkpatch warning messages in
controlvmcompletionstatus.h. All the warning messages in this file are
caused by "Block comments use atrailing */ on a separate line"
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes checkpatch.pl message:
 CHECK: Alignment should match open parenthesis
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes all the checkpatch.pl block commments that use a
trailing */ in channel.h
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes all the checkpatch Block comments use a trailing
*/ while keeping comments clean.
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes the last checkpatch warning about:
Block comments use a trailing */ on a separate line
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes last checkpatch warning for vbushelper.h
WARNING: Block comments use a trailing */ on a separate line
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This fixes last checkpatch warning:
WARNING: Block comments use a trailing */ on a separate line
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixed last warning message from checkpatch.pl by removing the
wordiness of the comment
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes check warning from checkpatch.pl in the macro definition
CHECK: spaces preferred around that '+' (ctx:VxV)
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

iochannel cleanup redudant comments in function declarations.
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes warning messages from checkpatch.pl specifically:
WARNING: Block comments use a trailing */ on a separate lines
Signed-off-by: NErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

In case of error we are jumping to err_del_scsipending_ent and always
returning SCSI_MLQUEUE_DEVICE_BUSY from error path. We donot need a
variable to return a fixed error value, it can be returned directly.
Signed-off-by: NSudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The variables op, sd and zmotion were never being used.
Signed-off-by: NSudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Made visorbus_main.c checkpatch warning-free by fixing the comment style
issues.
Signed-off-by: NGavin O'Leary <gavinoleary3@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Declare the function fwtty_port_put as static since it is used
only in this particular file. Also remove the corresponding
declaration from header file.
Signed-off-by: NShraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use the one-shot LCB write implemented in the 8051 firmware.
This speeds up 8051 LCB writes by 2x.  Use old method for older
firmwares.
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NDean Luick <dean.luick@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Changed the order in which diagnostics messages are printed,
taking into account the cases where the errors are handled in
rcv_hdrerr() and no further message is needed to report.
Reviewed-by: NMark Debbage <mark.debbage@intel.com>
Reviewed-by: NArthur Kepner <arthur.kepner@intel.com>
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: NIgnacio Hernandez <ignacio.hernandez@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

opaportconfig ledon fails with error message due to port
number being checked in the attr modifier. This change
removes the check for the port number in AttrMod, so the
P field is ignored.
Reviewed-by: NEaswar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

When looking for or validating a user device, only use devices
that are currently active.
Reviewed-by: NMitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: NDean Luick <dean.luick@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

During driver load the thermal sensor needs to be reset prior
to initialization of the sensor. This prevents a possible sensor lock
up which can cause the wrong temperature value to be reported.
This fix leads to remove disabling thermal polling from
reset_asic_csrs() function.

Reviewed by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: NJareer Abdel-Qader <jareer.h.abdel-qader@intel.com>
Signed-off-by: NIra Weiny <ira.weiny@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

B0 dual port parts require the SBus firmware to always be
downloaded.

Remove reset of the SBus Master spico.  It is not necessary
since the SBus firmware download already does that.
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NDean Luick <dean.luick@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Some BIOS implementations turn off extended tags in DevCtl (a RW
field) even though it was originally set and is advertised in DevCap
Fix is to set it in the driver
Reviewed-by: NDean Luick <dean.luick@intel.com>
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: NAshutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: NVennila Megavannan <vennila.megavannan@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The FLR on driver load asserts the QSFP reset pin and the driver does
not deassert it after. This patch allows the external QSFP cable to exit
reset by writing 1 to all the QSFP pins.
Reviewed-by: NDean Luick <dean.luick@intel.com>
Signed-off-by: NEaswar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Replacing dd_dev_info() for hfi1_cdbg() to avoid generating syslog
output for every context that is open by PSM.
Reviewed-by: NMitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: NSebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: NJubin John <jubin.john@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The module_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch renames DIM_EnqueueBuffer to dim_enqueue_buffer to avoid
camelcase found by checkpatch.

CHECK: Avoid CamelCase: <DIM_EnqueueBuffer>
FILE: drivers/staging/most/hdm-dim2/dim2_hal.c:877:
Signed-off-by: NChaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch renames DIM_GetChannelState to dim_get_channel_state to avoid
camelcase found by checkpatch.

CHECK: Avoid CamelCase: <DIM_GetChannelState>
FILE: drivers/staging/most/hdm-dim2/dim2_hal.c:865:
Signed-off-by: NChaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The second argument name of DIM_GetChannelState declaration changes from
dim_ch_state_ptr to state_ptr. The DIM_GetChannelState declaration and
definition has same argument name as state_ptr.
Signed-off-by: NChaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch renames DIM_ServiceChannel to dim_service_channel to avoid
camelcase found by checkpatch.

CHECK: Avoid CamelCase: <DIM_ServiceChannel>
FILE: drivers/staging/most/hdm-dim2/dim2_hal.c:857:
Signed-off-by: NChaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch renames DIM_ServiceIrq to dim_service_irq to avoid camelcase
found by checkpatch.

CHECK: Avoid CamelCase: <DIM_ServiceIrq>
FILE: drivers/staging/most/hdm-dim2/dim2_hal.c:819:
Signed-off-by: NChaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch renames DIM_DestroyChannel to dim_destroy_channel to avoid
camelcase found by checkpatch.

CHECK: Avoid CamelCase: <DIM_DestroyChannel>
FILE: drivers/staging/most/hdm-dim2/dim2_hal.c:806:
Signed-off-by: NChaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>