Am 26.11.2018 um 20:50 schrieb Christoph Hellwig:
On Thu, Nov 22, 2018 at 10:11:33AM +1300, Michael Schmitz wrote:
Christoph,
for Atari SCSI, commands can only be merged if the physical addresses
of all buffers are contiguous (limitation of the Falcon DMA engine).
Documentation/scsi/scsi_mid_
UFS Protocol Information Units (UPIU) are UFS packets that travel
between the host and the device on the UniPro bus. Our previous series
added the capability to send UPIUs to the ufs driver. It does not cover
all the possible UPIU types - we are mainly focused on device management,
provisioning, te
The size of the bsg job reply was set to SCSI_SENSE_BUFFERSIZE back then
while it was part of the bsg_command. However, for the scsi transport
that uses it, it does not carry the scsi sense information.
Rename it to clarify this point, and while at it, make it a little bit
larger, so it'll be able
Add this functionality, now that job->reply is big enough.
While at it, fix a typo in ufs_bsg_verify_query_params.
Signed-off-by: Avri Altman
---
Documentation/scsi/ufs.txt | 8
drivers/scsi/ufs/ufs_bsg.c | 25 +++--
2 files changed, 23 insertions(+), 10 deletions(-
Allow to read descriptors via raw upiu. This in fact was forbidden just
as a precaution, as ufs-bsg actually enforces which functionality is
supported.
Signed-off-by: Avri Altman
---
drivers/scsi/ufs/ufshcd.c | 20 ++--
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git
On Mon, 26 Nov 2018, Christoph Hellwig wrote:
> On Thu, Nov 22, 2018 at 09:02:13AM +1100, Finn Thain wrote:
> > > you in the To list maintain or wrote SCSI drivers that set the
> > > DISABLE_CLUSTERING flag, which basically disable merges of any
> > > bio segments. We already have the actual max_
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Add /* fallthrough */ annotation, to eliminate compilation warning:
warning: this statement may fall through [-Wimplicit-fallthrough=]
Signed-off-by: Tomas Winkler
---
drivers/scsi/ufs/ufshcd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/uf
Andy, btw, I'm observing some strange mail thread behavior here. I'm
pretty sure you responded to Jan, but he's not in the recipient list
in your last mail. If you check Jan's mail (the one you responded to),
you can notice new "reply-to" field (or "Mail-Followup-To:", in raw
mail). When you respon
On 11/21/18 6:12 AM, Christoph Hellwig wrote:
> On Mon, Nov 19, 2018 at 08:19:00AM -0700, Keith Busch wrote:
>> On Mon, Nov 19, 2018 at 12:58:15AM -0800, Christoph Hellwig wrote:
index 5d83a162d03b..c1d5e4e36125 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
On Mon, Nov 26, 2018 at 08:32:45AM -0700, Jens Axboe wrote:
> On 11/21/18 6:12 AM, Christoph Hellwig wrote:
> > On Mon, Nov 19, 2018 at 08:19:00AM -0700, Keith Busch wrote:
> >> On Mon, Nov 19, 2018 at 12:58:15AM -0800, Christoph Hellwig wrote:
> index 5d83a162d03b..c1d5e4e36125 100644
>
On 24/11/2018 17:50, kbuild test robot wrote:
Hi Xiang,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on mkp-scsi/for-next]
[also build test WARNING on next-20181123]
[cannot apply to v4.20-rc3]
[if your patch is applied to the wrong git tree, please drop us a
> -Original Message-
> From: Tomas Winkler
> Sent: Monday, November 26, 2018 10:11 AM
> To: James E . J . Bottomley ; Martin K . Petersen
> ; Vinayak Holikatti
> ; Avri Altman
> Cc: linux-scsi@vger.kernel.org; linux-ker...@vger.kernel.org; Tomas Winkler
>
> Subject: [PATCH] scsi: ufs: ad
The iterative update to the previous version taking into account review
comments.
Background:
The main objective is to remove the generic block layer's lock prefix
currently required to transition a request to its completed state by
shifting that expense to lower level drivers that actually need
The scsi timeout error handling had been directly updating the block
layer's request state to prevent a error handling and a natural completion
from completing the same request twice. Fix this layering violation
by having scsi control the fate of its commands with scsi owned flags
rather than use b
A driver may have internal state to cleanup if we're pretending a request
didn't complete. Return 'false' if the command wasn't actually completed
due to the timeout error injection, and true otherwise.
Signed-off-by: Keith Busch
---
block/blk-mq.c | 5 +++--
include/linux/blk-mq.h | 2 +
There are no more users relying on blk-mq request states to prevent
double completions, so replace the relatively expensive cmpxchg operation
with WRITE_ONCE.
Signed-off-by: Keith Busch
---
block/blk-mq.c | 4 +---
include/linux/blk-mq.h | 14 --
2 files changed, 1 insertion
On Mon, Nov 26, 2018 at 09:54:28AM -0700, Keith Busch wrote:
> A driver may have internal state to cleanup if we're pretending a request
> didn't complete. Return 'false' if the command wasn't actually completed
> due to the timeout error injection, and true otherwise.
>
> Signed-off-by: Keith Bus
On Mon, Nov 26, 2018 at 09:54:30AM -0700, Keith Busch wrote:
> There are no more users relying on blk-mq request states to prevent
> double completions, so replace the relatively expensive cmpxchg operation
> with WRITE_ONCE.
>
> Signed-off-by: Keith Busch
Looks good,
Reviewed-by: Christoph Hel
On Mon, Nov 26, 2018 at 09:54:29AM -0700, Keith Busch wrote:
> The scsi timeout error handling had been directly updating the block
> layer's request state to prevent a error handling and a natural completion
> from completing the same request twice. Fix this layering violation
> by having scsi con
On 11/11/18 15:32, Christoph Hellwig wrote:
> The only real user of the T10 OSD protocol, the pNFS object layout
> driver never went to the point of having shipping products, and we
> removed it 1.5 years ago. Exofs is just a simple example without
> real life users.
>
You have failed to say wha
On 11/26/18 9:54 AM, Keith Busch wrote:
> The iterative update to the previous version taking into account review
> comments.
>
> Background:
>
> The main objective is to remove the generic block layer's lock prefix
> currently required to transition a request to its completed state by
> shifting
On 11/20/18 5:22 PM, fred.her...@oracle.com wrote:
> From: Fred Herard
>
> This commit addresses NULL pointer dereference in iscsi_eh_session_reset.
> Reference should not be made to session->leadconn when session->state
> is set to ISCSI_STATE_TERMINATE.
>
> Signed-off-by: Fred Herard
> Review
On 11/21/18 9:04 AM, fred.her...@oracle.com wrote:
> From: Fred Herard
>
> This commit enhances iscsi initiator modules to capture iscsi debug messages
> using linux kernel tracepoint facility:
>
> https://www.kernel.org/doc/Documentation/trace/tracepoints.txt
>
> The following tracepoint event
Lee,
See about 3/4 of the way down your patch.
Summary: how about generalizing the message logging to tracefs so the
whole SCSI subsystem can use it?
Doug Gilbert
On 2018-11-26 8:01 p.m., Lee Duncan wrote:
On 11/21/18 9:04 AM, fred.her...@oracle.com wrote:
From: Fred Herard
This commit enh
Dear Linus, Dear Martin,
About fifteen years ago, soon after I got interested in SMART and
starting working on smartmontools, I wrote some kernel code that added
smart data into /sys. (Actually this was around the 2.4 transition so it
was under /proc along with lots of other stuff that had nothin
PTR_ERR_OR_ZERO has implemented the same function, so use inlined function
instead of open coded equivalent.
Signed-off-by: Wen Yang
CC: Vinayak Holikatti
CC: "James E.J. Bottomley"
CC: "Martin K. Petersen"
CC: linux-scsi@vger.kernel.org
CC: Wen Yang
CC: linux-ker...@vger.kernel.org
---
driv
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