On 10/26/2015 03:54 PM, Peter Oberparleiter wrote:
> Writing a number to /sys/bus/scsi/devices//queue_ramp_up_period
> returns the value of that number instead of the number of bytes written.
> This behavior can confuse programs expecting POSIX write() semantics.
> Fix this by returning the number
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On 10/26/15 07:54, Peter Oberparleiter wrote:
Writing a number to /sys/bus/scsi/devices//queue_ramp_up_period
returns the value of that number instead of the number of bytes written.
This behavior can confuse programs expecting POSIX write() semantics.
Fix this by returning the number of bytes wr
On 10/26/2015 08:41 AM, Yaniv Gardi wrote:
> Tnis patch fixes the following compilation warnings:
> ...ufs-qcom.c:1201:40:
> warning: incorrect type in argument 1 (different address spaces)
> ...ufs-qcom.c:1201:40:
> expected void const *ptr
> ...ufs-qcom.c:1201:40:
> got void [no
This patch fixes the following kernel bug:
kernel:BUG: rwlock recursion on CPU#2, insmod/39333, 8803e998cb28
kernel: Call Trace:
kernel: [] dump_stack+0x48/0x64
kernel: [] rwlock_bug+0x67/0x70
kernel: [] do_raw_write_lock+0x8a/0xa0
kernel: [] _raw_write_lock_irqsave+0x63/0x80
kernel: [] qla82x
Hi Bart,
On 10/14/15, 4:07 PM, "linux-scsi-ow...@vger.kernel.org on behalf of
Himanshu Madhani" wrote:
>Hi Bart,
>
>> On Oct 14, 2015, at 10:33 AM, Bart Van Assche
>> wrote:
>>
>> On 10/14/2015 08:57 AM, Himanshu Madhani wrote:
>>> This patch fixes rwlock recursion introduced for ISP82XX by
Hi John,
[auto build test ERROR on scsi/for-next -- if it's inappropriate base, please
suggest rules for selecting the more suitable base]
url:
https://github.com/0day-ci/linux/commits/John-Garry/HiSilicon-SAS-driver/20151026-221717
config: x86_64-allmodconfig (attached as .c
We are seeing that some devices are raising the urgent bkops exception
events even when BKOPS status doesn't indicate performace impacted or
critical. Handle these device by determining their urgent bkops status
at runtime.
Signed-off-by: Subhash Jadavani
Signed-off-by: Yaniv Gardi
---
drivers
V2:
This series should be pushed on top of 15 patches series:
"Big fixes, retries, handle a race condition"
fixed and few comments.
V1:
This series should be pushed on top of 15 patches series:
"Big fixes, retries, handle a race condition"
Yaniv Gardi (17):
scsi: ufs-qcom: add number of lanes p
Different platform may have different number of lanes
for the UFS link.
Add parameter to device tree specifying how many lanes
should be configured for the UFS link.
Signed-off-by: Gilad Broner
Signed-off-by: Yaniv Gardi
---
.../devicetree/bindings/ufs/ufshcd-pltfrm.txt | 3 ++
drivers/s
Currently we use the host quirks mechanism in order to
handle both device and host controller quirks.
In order to support various of UFS devices we should separate
handling the device quirks from the host controller's.
Signed-off-by: Raviv Shvili
Signed-off-by: Yaniv Gardi
---
drivers/scsi/ufs
Some UFS devices don't require VCCQ rail for device operations hence
this change adds support to recognize such devices and remove vote for
the unused VCCQ rail.
Signed-off-by: Subhash Jadavani
Signed-off-by: Yaniv Gardi
---
drivers/scsi/ufs/ufs.h| 1 +
drivers/scsi/ufs/ufshcd.c | 60
UFS device and link can be put in multiple different low power modes
hence UFS driver supports multiple different low power modes.
By default UFS driver selects the default (optimal) low power mode
(which gives moderate power savings and have relatively less enter
and exit latencies) but we might h
Sometimes due to hw issues it takes some time to the
host controller register to update. In order to verify the register
has updated, a polling is done until its value is set.
In addition the functions ufshcd_hba_stop() and
ufshcd_wait_for_register() was updated with an additional input
parameter,
A race condition exists between request requeueing and scsi layer
error handling:
When UFS driver queuecommand returns a busy status for a request,
it will be requeued and its tag will be freed and set to -1.
At the same time it is possible that the request will timeout and
scsi layer will start er
Consider following sequence of events:
1. UFS is runtime suspended, link_state = Hibern8, device_state = sleep
2. System goes into system suspend, ufshcd_system_suspend() brings both
link and device to active state and then puts the device in
Power_Down state and link in OFF state.
3. System
When control reaches to Linux UFS driver during UFS boot mode, UFS host
controller interrupt status/enable registers may have left over
settings.
In order to avoid any spurious interrupts due to these left overs,
it's important to clear these interrupt status/enable registers before
enabling UFS in
UFS driver's error handler forcefully tries to clear all the pending
requests. For each pending request in the queue, it waits 1 sec for it
to get cleared. If we have multiple requests in the queue then it's
possible that we might end up waiting for those many seconds before
resetting the host. But
Currently when we try to put the link in off/disabled state during
suspend, it seems link is not being kept in low power mode.
This patch fixes the issue by putting the link in hibern8 first
(so device also puts the link in low power mode) and then stop the
host controller.
Signed-off-by: Subhash
Query commands have 100ms timeout and it may timeout if they are
issued in parallel to ongoing read/write SCSI commands, this change
adds the retry (max: 10) in case command timeouts.
Signed-off-by: Subhash Jadavani
Signed-off-by: Yaniv Gardi
---
drivers/scsi/ufs/ufshcd.c | 55
We put the UFS device in sleep state & UFS link in hibern8 state during
runtime suspaned. After this we put all the UFS rails in low power
modes immediately but it seems some devices may still draw more than
sleep current from UFS rails (especially from VCCQ rail) atleast for
500us.
To avoid this s
Optimal values of local UniPro parameters like PA_Hibern8Time &
PA_TActivate can help reduce the hibern8 exit latency. If both host and
device supports UniPro ver1.6 or later, these parameters will be
automatically tuned during link startup itself. But if either host or
device doesn't support UniPr
Some vendor's UFS device sends back to back NACs for the DL data frames
causing the host controller to raise the DFES error status. Sometimes
such UFS devices send back to back NAC without waiting for new
retransmitted DL frame from the host and in such cases it might be
possible the Host UniPro go
Some UFS devices (and may be host) have issues if LCC is
enabled. So we are setting PA_Local_TX_LCC_Enable to 0
before link startup which will make sure that both host
and device TX LCC are disabled once link startup is
completed.
This change also:
- enables the device ref clock before changing to
Tnis patch fixes the following compilation warnings:
...ufs-qcom.c:1201:40:
warning: incorrect type in argument 1 (different address spaces)
...ufs-qcom.c:1201:40:
expected void const *ptr
...ufs-qcom.c:1201:40:
got void [noderef] *dev_ref_clk_ctrl_mmio
...ufs-qcom.c:1207:53
On 10/26/2015 09:55 AM, Tomas Henzl wrote:
On 24.10.2015 21:52, Don Brace wrote:
Fix a NULL pointer issue in the driver when devices are removed
during a reset.
Signed-off-by: Don Brace
---
drivers/block/cciss.h |1 +
drivers/scsi/hpsa.c | 16
drivers/scsi/hpsa.h
> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi :
>> We put the UFS device in sleep state & UFS link in hibern8 state during
>> runtime suspaned. After this we put all the UFS rails in low power
>> modes immediately but it seems some devices may still draw more than
>> sleep current from UFS rails (especi
On 26/10/2015 14:14, John Garry wrote:
Add devicetree bindings for HiSilicon SAS driver.
Signed-off-by: John Garry
---
.../devicetree/bindings/scsi/hisilicon-sas.txt | 70 ++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/scsi/
On 26/10/2015 14:48, Mark Rutland wrote:
+ sas_addr_prop = of_find_property(np, "sas-addr", NULL);
+ if (!sas_addr_prop || (sas_addr_prop->length != SAS_ADDR_SIZE))
+ goto err_out;
+ memcpy(hisi_hba->sas_addr, sas_addr_prop->value, SAS_ADDR_SIZE);
This was not in
On 24.10.2015 21:52, Don Brace wrote:
> Fix a NULL pointer issue in the driver when devices are removed
> during a reset.
>
> Signed-off-by: Don Brace
> ---
> drivers/block/cciss.h |1 +
> drivers/scsi/hpsa.c | 16
> drivers/scsi/hpsa.h |1 +
> 3 files changed, 18 i
Writing a number to /sys/bus/scsi/devices//queue_ramp_up_period
returns the value of that number instead of the number of bytes written.
This behavior can confuse programs expecting POSIX write() semantics.
Fix this by returning the number of bytes written instead.
Signed-off-by: Peter Oberparleit
> + sas_addr_prop = of_find_property(np, "sas-addr", NULL);
> + if (!sas_addr_prop || (sas_addr_prop->length != SAS_ADDR_SIZE))
> + goto err_out;
> + memcpy(hisi_hba->sas_addr, sas_addr_prop->value, SAS_ADDR_SIZE);
This was not in the binding.
What is this?
Thanks,
Mark.
On Mon, Oct 26, 2015 at 10:14:33PM +0800, John Garry wrote:
> Add devicetree bindings for HiSilicon SAS driver.
>
> Signed-off-by: John Garry
> ---
> .../devicetree/bindings/scsi/hisilicon-sas.txt | 70
> ++
> 1 file changed, 70 insertions(+)
> create mode 100644 Docume
On 26.10.2015 15:29, Don Brace wrote:
> On 10/26/2015 09:24 AM, Tomas Henzl wrote:
>> On 24.10.2015 21:52, Don Brace wrote:
>>> Abandon and reschedule rescan process only if device inquiries
>>> fail due to mem alloc failures, which are likely to occur for
>>> all devices.
>>>
>>> Otherwise, skip d
On 24.10.2015 21:52, Don Brace wrote:
> handle block counts of 0. Cleanup block and block count calculations.
>
> Reviewed-by: Scott Teel
> Reviewed-by: Justin Lindley
> Reviewed-by: Kevin Barnett
> Signed-off-by: Don Brace
Reviewed-by: Tomas Henzl
Tomas
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On 24.10.2015 21:52, Don Brace wrote:
> Reviewed-by: Scott Teel
> Reviewed-by: Justin Lindley
> Reviewed-by: Kevin Barnett
> Signed-off-by: Don Brace
Reviewed-by: Tomas Henzl
Tomas
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the body of a message to majord...
On 26.10.2015 15:32, Tomas Henzl wrote:
> On 26.10.2015 15:29, Don Brace wrote:
>> On 10/26/2015 09:24 AM, Tomas Henzl wrote:
>>> On 24.10.2015 21:52, Don Brace wrote:
Abandon and reschedule rescan process only if device inquiries
fail due to mem alloc failures, which are likely to occur
> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi :
>> Optimal values of local UniPro parameters like PA_Hibern8Time &
>> PA_TActivate can help reduce the hibern8 exit latency. If both host and
>> device supports UniPro ver1.6 or later, these parameters will be
>> automatically tuned during link startup its
On 24.10.2015 21:52, Don Brace wrote:
> Abandon and reschedule rescan process only if device inquiries
> fail due to mem alloc failures, which are likely to occur for
> all devices.
>
> Otherwise, skip device if inquiry fails for other reasons,
> and continue rescanning process for other devices.
>
On 10/26/2015 09:24 AM, Tomas Henzl wrote:
On 24.10.2015 21:52, Don Brace wrote:
Abandon and reschedule rescan process only if device inquiries
fail due to mem alloc failures, which are likely to occur for
all devices.
Otherwise, skip device if inquiry fails for other reasons,
and continue resc
The SAS address for the HBA comes from the device tree.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 1 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 12
2 files changed, 13 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hi
Allocate DMA and non-DMA memories for the controller. Also
create DMA pools.
These include:
- Delivery queues
- Completion queues
- Command status buffer
- Command table
- ITCT (For device context)
- Host slot info
- IO status
- Breakpoint
- host slot indexing
- SG data
- FIS
- interrupts names
--
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c
b/drivers/scsi/hisi_sas/hisi_sas_main.c
index a3bf682..e5ee1d5 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/sc
Add devicetree bindings for HiSilicon SAS driver.
Signed-off-by: John Garry
---
.../devicetree/bindings/scsi/hisilicon-sas.txt | 70 ++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
diff --git a/Documentatio
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 1 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 8
2 files changed, 9 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 1cc1376..424d693 100644
--- a/drivers/scsi/hisi_s
Add code for interrupt init, so now we can get a phy up
interrupt when a disk is connected.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 5 +
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 162 +
2 files changed, 167 insertions(+)
diff --git
Add module init code for v1 hw.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/Makefile | 1 +
drivers/scsi/hisi_sas/hisi_sas.h | 3 ++
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 53 ++
3 files changed, 57 insertions(+)
create mode 100644 drive
This patch also includes relevant memory/pool
free'ing and sas/scsi host removal
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 75 ++-
1 file changed, 74 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c
b/dr
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 1 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 4 +
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 331 +
3 files changed, 336 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers
Add functionality to register device as a scsi host.
The SAS domain transport ops are empty at this point.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 34 ++
drivers/scsi/hisi_sas/hisi_sas_main.c | 116 ++
2 files changed, 150 i
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 2 ++
drivers/scsi/hisi_sas/hisi_sas_main.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 04c2577..0a14994 100644
--- a/drivers/scsi/hisi_sas/h
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 144 +++
1 file changed, 144 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index ace4254..d93e55a 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
++
Each completion queue has a structure. This is mainly for
passing to irq handler so we know which queue the irq occured
on.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 7 +++
drivers/scsi/hisi_sas/hisi_sas_main.c | 6 ++
2 files changed, 13 insertions(+)
diff -
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 389 +
1 file changed, 389 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 011bfe3..d1c9c27 100644
--- a/drivers/scsi/hisi_sas/
Add method for lldd_control_phy. Currently link rate
control and spinup hold is unsupported.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 3 +++
drivers/scsi/hisi_sas/hisi_sas_main.c | 37 ++
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 23
This patch adds the initial bare main driver for the
HiSilicon SAS HBA. This only introduces the changes to
build and load the main driver module.
The complete driver consists of the core main module and
also a module platform driver for driving the hw.
The HBA is a platform device.
Signed-off-b
Add abnormal irq handler. This handler is concerned with
phy down event.
Also add port formed and port deformed handlers.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 2 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 136 +
drivers/scsi/his
Add functions to deal with lldd_dev_found and lldd_port_formed
Signed-off-by: John Garry
Conflicts:
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
---
drivers/scsi/hisi_sas/hisi_sas.h | 13
drivers/scsi/hisi_sas/hisi_sas_main.c | 106 +
drivers/scsi/
Add functionality to init slot indexing.
Slot indexing is for the host to track which slots
(or tags) are free and which are used.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 4
drivers/scsi/hisi_sas/hisi_sas_main.c | 22 ++
2 files changed, 2
The xfer_rdy, command, and task frame's iu structures
are not available in , but only aic94xx
driver folder.
Add them to include/scsi/sas.h
Signed-off-by: John Garry
---
drivers/scsi/aic94xx/aic94xx_sas.h | 49 -
include/scsi/sas.h | 74 +++
Add cq interrupt handler and also slot error handler
function.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 9 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 47 +
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 357 +
3 files changed, 413 in
Include initialisation.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 12
drivers/scsi/hisi_sas/hisi_sas_main.c | 6 ++
2 files changed, 18 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 424d693..f27
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 17 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 30 ++
2 files changed, 47 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index f2757cd.
Add support for smp function, which allows devices
attached by expander to be controlled
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 3 ++
drivers/scsi/hisi_sas/hisi_sas_main.c | 10 +++-
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 93 ++
This is for expander broadcast event.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 31 +++
1 file changed, 31 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 8a9498e74..f8c53e
Add function methods for tmf's.
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 353 ++
1 file changed, 353 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c
b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 13e34cb..4f3a818 1006
Add handlers for fatal interrupts
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 122 +
1 file changed, 122 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index d7ad515..778fa22
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 2 ++
drivers/scsi/hisi_sas/hisi_sas_main.c | 49 ++
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 15 +++
3 files changed, 66 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b
> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi :
>> Query commands have 100ms timeout and it may timeout if they are
>> issued in parallel to ongoing read/write SCSI commands, this change
>> adds the retry (max: 10) in case command timeouts.
>>
>> Signed-off-by: Subhash Jadavani
>> Signed-off-by: Yaniv
Add path to send ssp command to HW
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 29
drivers/scsi/hisi_sas/hisi_sas_main.c | 238 +
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 208
3 files changed, 475 inse
This is the driver patchset for the HiSilicon SAS driver. The driver
is a platform driver.
The driver will support multiple revisions of HW. Currently only "v1"
HW is supported.
The driver uses libsas framework within the SCSI framework.
The v1 HW supports SSP and SMP, but not STP/SATA.
Differe
Add functions for scsi host template scan_finished
and scan_start methods
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 1 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 25 +
2 files changed, 26 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_s
Add maintainer for HiSilicon SAS driver.
Signed-off-by: John Garry
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index ddc88c0..4ca8d79 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4951,6 +4951,13 @@ F: include/uapi/linux/if_hippi.h
Scan the device tree for all properties. Also
do this:
- do ioremap for SAS registers
- allocate memory for interrupt names
Signed-off-by: John Garry
---
drivers/scsi/hisi_sas/hisi_sas.h | 9 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 38 ++-
2 files
> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi :
>> Currently when UFSHCD_BROKEN_LCC quirk is defined, LCC is getting
>> disabled on both host and device side but there could be a need
>> where we don't want to disable the LCC on both side hence this change
>> splits the quirk in 2 parts one for host and
On 10/26/2015 07:52 AM, Tomas Henzl wrote:
On 24.10.2015 21:52, Don Brace wrote:
was seeing issues passing level into hpsa_show_dev_msg and then using
the level as an arguement to dev_printk. For now, switch to dev_warn.
Signed-off-by: Don Brace
---
drivers/scsi/hpsa.c | 41 +++
On 10/24/2015 03:19 PM, kbuild test robot wrote:
Hi Don,
[auto build test ERROR on scsi/for-next -- if it's inappropriate base, please
suggest rules for selecting the more suitable base]
url:
https://github.com/0day-ci/linux/commits/Don-Brace/hpsa-updates/20151025-040012
config: x86_64-ran
> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi :
>
>> diff --git a/drivers/scsi/ufs/ufs_quirks.c
>> b/drivers/scsi/ufs/ufs_quirks.c
>> new file mode 100644
>> index 000..b649bbf
>> --- /dev/null
>> +++ b/drivers/scsi/ufs/ufs_quirks.c
>> @@ -0,0 +1,101 @@
>> +/*
>> + * Copyright (c) 2013-2015, The Lin
> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi :
>> Sometimes due to hw issues it takes some time to the
>> host controller register to update. In order to verify the register
>> has updated, a polling is done until its value is set.
>>
>> In addition the functions ufshcd_hba_stop() and
>> ufshcd_wait_fo
> 2015-09-13 23:52 GMT+09:00 Yaniv Gardi :
>> UFS device and link can be put in multiple different low power modes
>> hence UFS driver supports multiple different low power modes.
>> By default UFS driver selects the default (optimal) low power mode
>> (which gives moderate power savings and have r
2015-10-25 22:38 GMT+09:00 :
>> 2015-09-02 19:13 GMT+09:00 Yaniv Gardi :
>>> fDeviceInit query response time for some devices is too long that
>>> default
>>> query request timeout of 100ms may not be enough. Experiments show that
>>> fDeviceInit response sometimes takes 500ms so to be on safer si
On 24.10.2015 21:52, Don Brace wrote:
> was seeing issues passing level into hpsa_show_dev_msg and then using
> the level as an arguement to dev_printk. For now, switch to dev_warn.
>
> Signed-off-by: Don Brace
> ---
> drivers/scsi/hpsa.c | 41 -
> 1 file
> 2015-10-25 23:40 GMT+09:00 :
>>> 2015-09-02 19:13 GMT+09:00 Yaniv Gardi :
Performing several writes to UFS host controller registers has
no gurrantee of ordering, so we must make sure register writes
to setup request list base address etc. are performed before the
run/stop re
2015-10-25 23:40 GMT+09:00 :
>> 2015-09-02 19:13 GMT+09:00 Yaniv Gardi :
>>> Performing several writes to UFS host controller registers has
>>> no gurrantee of ordering, so we must make sure register writes
>>> to setup request list base address etc. are performed before the
>>> run/stop register
On Mon, 2015-10-19 at 16:35 +0200, Christoph Hellwig wrote:
> When dropping a lock while iterating a list we must restart the
> search
> as other threads could have manipulated the list under us. Without
> this
> we can get stuck in an endless loop.
>
> Reported-by: Johannes Thumshirn
> Signed-o
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