From: Nicholas Bellinger
We already expect TFO->get_blocks() to return sector_t for zero value case
when doing WRITE_SAME to the end of the backend device, so go ahead and return
sector_t from spc_get_write_same_sectors() to handle this case properly.
Also, update the single iblock_execute_write
Hi Sebastian & Co,
On Tue, 2012-11-27 at 16:20 +0100, Sebastian Andrzej Siewior wrote:
> On 11/26/2012 06:54 PM, Michal Nazarewicz wrote:
> > On Mon, Nov 26 2012, Sebastian Andrzej Siewior wrote:
> >> Wouldn't say that. It may adds complexity on another level. The target
> >> subsystem has the sam
Hi Linus,
So just a single target fix for v3.7.0 this time around from Roland to
address a aborted command bug w/ tcm_qla2xxx fabric ports.
Please go ahead and pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
Also, there is one outstanding IBLOCK + virtio
On Mon, 2013-03-18 at 13:35 +0800, Asias He wrote:
> On Sat, Mar 16, 2013 at 02:10:22AM +, Ben Hutchings wrote:
> > On Tue, 2013-03-12 at 15:44 -0700, Greg Kroah-Hartman wrote:
> > > 3.0-stable review patch. If anyone has any objections, please let me
> > > know.
> > >
> > >
On Mon, 2013-03-18 at 21:54 +0200, Michael S. Tsirkin wrote:
> On Mon, Mar 18, 2013 at 01:01:36PM -0400, David Miller wrote:
> > From: "Michael S. Tsirkin"
> > Date: Mon, 18 Mar 2013 13:20:03 +0200
> >
> > > The following changes since commit
> > > 8c6216d7f118a128678270824b6a1286a63863ca:
> > >
On Mon, 2013-03-18 at 23:14 +0200, Michael S. Tsirkin wrote:
> On Mon, Mar 18, 2013 at 02:10:03PM -0700, Nicholas A. Bellinger wrote:
> > On Mon, 2013-03-18 at 21:54 +0200, Michael S. Tsirkin wrote:
> > > On Mon, Mar 18, 2013 at 01:01:36PM -0400, David Miller wrote:
> &
On Mon, 2013-03-18 at 19:34 -0400, Jörn Engel wrote:
> And because I'm lame and stupid, here's v3.
>
> It is possible for one thread to to take se_sess->sess_cmd_lock in
> core_tmr_abort_task() before taking a reference count on
> se_cmd->cmd_kref, while another thread in target_put_sess_cmd() dro
On Mon, 2013-03-18 at 19:39 -0700, Greg Kroah-Hartman wrote:
> On Mon, Mar 18, 2013 at 07:11:12PM -0700, Nicholas A. Bellinger wrote:
> > On Mon, 2013-03-18 at 19:34 -0400, Jörn Engel wrote:
> > > And because I'm lame and stupid, here's v3.
> > >
> >
On Tue, 2013-03-19 at 01:18 +, Ben Hutchings wrote:
> On Tue, 2013-03-19 at 08:56 +0800, Asias He wrote:
> > On Mon, Mar 18, 2013 at 11:30:47PM +, Ben Hutchings wrote:
> > > On Mon, 2013-03-18 at 14:00 -0700, Nicholas A. Bellinger wrote:
> > > > On Mon, 2013-
From: Nicholas Bellinger
This patch converts struct iscsi_cmd memory allocation + free to use
->iscsit_alloc_cmd() iscsit_transport API caller, and export
iscsit_allocate_cmd() symbols
Also add iscsi_cmd->release_cmd() to be used seperately from
iscsit_transport for connection/session shutdown.
From: Nicholas Bellinger
This patch adds a new network portal attribute for iser, that lives
under existing iscsi-target configfs layout at:
/sys/kernel/config/target/iscsi/$TARGETNAME/$TPGT/np/$PORTAL/iser
When lio_target_np_store_iser() is enabled, iscsit_tpg_add_network_portal()
will atte
From: Nicholas Bellinger
This patch refactors TX immediate + response queue handling to use
the new iscsit_transport API callers, and exports the necessary
traditional iscsi PDU response creation functions for iser-target
to utilize.
This includes:
- Add iscsit_build_datain_pdu() for DATAIN PDU
From: Nicholas Bellinger
This patch refactors existing traditional iscsi RX side PDU handling
to use iscsit_transport, and exports the necessary logic for external
transport modules.
This includes:
- Refactor iscsit_handle_scsi_cmd() into PDU setup / processing
- Add updated iscsit_handle_scsi_
From: Nicholas Bellinger
This series is the third RFC for iSCSI Extensions for RDMA (ISER) target
mode support planned for an future v3.10 merge. This series refactors
existing traditional iscsi-target mode logic in order for external
ib_isert.ko module code to function with areas common to trad
From: Nicholas Bellinger
Add basic struct iscsit_transport API template to allow iscsi-target for
running with external transport modules using existing iscsi_target_core.h
code.
For all external modules, this calls try_module_get() and module_put()
to obtain + release an external iscsit_transpo
From: Nicholas Bellinger
This patch adds RDMAExtensions, InitiatorRecvDataSegmentLength and
TargetRecvDataSegmentLength parameters keys necessary for iser-target
login to occur.
This includes setting the necessary parameters during login path
code within iscsi_login_zero_tsih_s2(), and currently
From: Nicholas Bellinger
This patch performs the initial conversion of existing traditional iscsi
to use iscsit_transport API callers. This includes:
- iscsi-np cleanups for iscsit_transport_type
- Add iscsi-np transport calls w/ ->iscsit_setup_up() and ->iscsit_free_np()
- Convert login thread
From: Nicholas Bellinger
Export target_get_sess_cmd() symbol so that it can be used by
iscsi-target.
Signed-off-by: Nicholas Bellinger
---
drivers/target/target_core_transport.c |4 ++--
include/target/target_core_fabric.h|2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
dif
On Thu, 2013-04-04 at 12:20 +0300, Or Gerlitz wrote:
> On 04/04/2013 10:24, Nicholas A. Bellinger wrote:
> > +
> > +void isert_cq_tx_callback(struct ib_cq *, void *);
> > +void isert_cq_rx_callback(struct ib_cq *, void *);
> > +void isert_free_rx_descriptors(struct iser
On Thu, 2013-04-04 at 12:45 +0300, Or Gerlitz wrote:
> On 04/04/2013 10:24, Nicholas A. Bellinger wrote:
>
> > +#define ISER_RECV_DATA_SEG_LEN 8192
> > +#define ISER_RX_PAYLOAD_SIZE(ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN)
> > [...]
> > +#de
On Thu, 2013-04-04 at 12:51 +0300, Or Gerlitz wrote:
> On 04/04/2013 10:24, Nicholas A. Bellinger wrote:
> > +static int
> > +isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
> > +{
> > + struct isert_cmd *i
Hi Linus,
Here's the current set of v3.8-rc fixes in the target-pending.git queue.
Apologies in advance for these missing the -rc6 release, and having to
be destined for -rc7 code.
Please go ahead and pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
The m
Hi Linus,
Here are the target pending updates for v3.9-rc1 code. Please go ahead
and pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git for-next
The highlights in this series include:
- Improve sg_table lookup scalability in RAMDISK_MCP (martin)
- Add device attr
Hi Martin,
CC'ing linux-scsi here, as aacraid doesn't have an official maintainer
atm.
--nab
On Wed, 2013-02-20 at 16:38 +0100, Martin Svec wrote:
> Hello,
>
> I've noticed read I/O starvation problems of LIO iSCSI target when
> used on top of writeback-enabled HW RAID controller (PERC H700 wit
(CC'ed) mentioned the currently out-of-tree ROW scheduler
worked for him:
https://lkml.org/lkml/2012/12/11/534
Perhaps this would be worth a shot..?
--nab
> Thanks,
>
> Martin
>
> Dne 20.2.2013 21:48, Nicholas A. Bellinger napsal(a):
> > Hi Martin,
> >
> >
On Tue, 2012-08-28 at 13:54 +0200, Paolo Bonzini wrote:
> This patch adds queue steering to virtio-scsi. When a target is sent
> multiple requests, we always drive them to the same queue so that FIFO
> processing order is kept. However, if a target was idle, we can choose
> a queue arbitrarily.
On Tue, 2012-09-04 at 08:46 +0200, Paolo Bonzini wrote:
> Il 04/09/2012 04:21, Nicholas A. Bellinger ha scritto:
> >> @@ -112,6 +118,9 @@ static void virtscsi_complete_cmd(struct virtio_scsi
> >> *vscsi, void *buf)
> >>struct virtio_scsi_cmd *cmd = buf;
> >
Greetings all,
On Wed, 2008-01-30 at 19:56 +0900, FUJITA Tomonori wrote:
> On Wed, 30 Jan 2008 09:38:04 +0100
> "Bart Van Assche" <[EMAIL PROTECTED]> wrote:
>
> > On Jan 30, 2008 12:32 AM, FUJITA Tomonori <[EMAIL PROTECTED]> wrote:
> > >
> > > iSER has parameters to limit the maximum size of RDMA
Hi Bart,
On Thu, 2008-01-31 at 15:34 +0100, Bart Van Assche wrote:
> On Jan 31, 2008 2:25 PM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> > Since this particular code is located in a non-data path critical
> > section, the kernel vs. user discussion is a wash. If we
On Thu, 2008-01-31 at 18:50 +0300, Vladislav Bolkhovitin wrote:
> Bart Van Assche wrote:
> > On Jan 31, 2008 2:25 PM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> >
> >>Since this particular code is located in a non-data path critical
> >>section, t
On Thu, 2008-01-31 at 18:40 +0100, Bart Van Assche wrote:
> On Jan 31, 2008 6:14 PM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> > Also, with STGT being a pretty new design which has not undergone alot
> > of optimization, perhaps profiling both pieces of code agai
On Fri, 2008-02-01 at 09:11 +0100, Bart Van Assche wrote:
> On Jan 31, 2008 2:25 PM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> >
> > The PyX storage engine supports a scatterlist linked list algorithm that
> > ...
>
> Which parts of the PyX source co
On Fri, 2008-02-01 at 12:04 +0100, Bart Van Assche wrote:
> On Feb 1, 2008 11:39 AM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> >
> > On Fri, 2008-02-01 at 09:11 +0100, Bart Van Assche wrote:
> > > On Jan 31, 2008 2:25 PM, Nicholas A. Belli
On Fri, 2008-02-01 at 14:25 +0100, Bart Van Assche wrote:
> On Feb 1, 2008 1:05 PM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> >
> > All of the kernel and C userspace code is open source and available from
> > linux-iscsi.org and licensed under the GPL.
>
Sorry, resend..
--- Begin Message ---
On Sat, 2008-02-02 at 05:26 -0800, Nicholas A. Bellinger wrote:
> Hi Bart,
>
> Ok, I have 2.6.24 running on ppc64 doing iSCSI/HD on PS3-Linux. The
> changes for struct scatterlist->page moving to struct
> scatterlist->page_link where p
Greetings all,
I have updated the wiki at:
http://linux-iscsi.org/index.php/Playstation3/iSCSI
and posted the first LIO target builds on the LIO Cluster:
http://linux-iscsi.org/builds/ps3-linux/
I will adding the documentation for both LIO SE on PS3-Linux, and the
FC8 upgrade process, as the l
, let me know if you are missing any when you install
iscsi-target-tools.
Thanks,
--nab
On Mon, 2008-02-04 at 07:52 -0800, Nicholas A. Bellinger wrote:
> Hi Marc,
>
> You can generate the kernel RPM with 'make kernel ARCH=powerpc'.
>
> Also, while module-assistant is s
s.h:357: warning: integer constant is too large
> for ‘unsigned long’ type
> include/asm/uaccess.h:358: warning: integer constant is too large
> for ‘unsigned long’ type
> include/asm/uaccess.h:358: warning: integer constant is too large
> for ‘unsigned long’ type
> include/as
On Sat, 2008-02-02 at 05:26 -0800, Nicholas A. Bellinger wrote:
> Hi Bart,
>
> Ok, I have 2.6.24 running on ppc64 doing iSCSI/HD on PS3-Linux. The
> changes for struct scatterlist->page moving to struct
> scatterlist->page_link where pretty straightforward, considering the
On Mon, 2008-02-04 at 11:06 -0800, Nicholas A. Bellinger wrote:
> On Mon, 2008-02-04 at 10:29 -0800, Linus Torvalds wrote:
> >
> > On Mon, 4 Feb 2008, James Bottomley wrote:
> > >
> > > The way a user space solution should work is to schedule mmapped I/O
>
On Mon, 2008-02-04 at 11:44 -0800, Linus Torvalds wrote:
>
> On Mon, 4 Feb 2008, Nicholas A. Bellinger wrote:
> >
> > While this does not have anything to do directly with the kernel vs.
> > user discussion for target mode storage engine, the scaling and latency
> &g
On Mon, 2008-02-04 at 10:29 -0800, Linus Torvalds wrote:
>
> On Mon, 4 Feb 2008, James Bottomley wrote:
> >
> > The way a user space solution should work is to schedule mmapped I/O
> > from the backing store and then send this mmapped region off for target
> > I/O.
>
> mmap'ing may avoid the cop
On Mon, 2008-02-04 at 17:00 -0600, James Bottomley wrote:
> On Mon, 2008-02-04 at 22:43 +, Alan Cox wrote:
> > > better. So for example, I personally suspect that ATA-over-ethernet is
> > > way
> > > better than some crazy SCSI-over-TCP crap, but I'm biased for simple and
> > > low-level, an
On Mon, 2008-02-04 at 13:24 -0800, Linus Torvalds wrote:
>
> On Mon, 4 Feb 2008, J. Bruce Fields wrote:
> >
> > I'd assumed the move was primarily because of the difficulty of getting
> > correct semantics on a shared filesystem
>
> .. not even shared. It was hard to get correct semantics full s
On Mon, 2008-02-04 at 22:43 +, Alan Cox wrote:
> > better. So for example, I personally suspect that ATA-over-ethernet is way
> > better than some crazy SCSI-over-TCP crap, but I'm biased for simple and
> > low-level, and against those crazy SCSI people to begin with.
>
> Current ATAoE isn't
On Mon, 2008-02-04 at 15:12 -0800, Nicholas A. Bellinger wrote:
> On Mon, 2008-02-04 at 17:00 -0600, James Bottomley wrote:
> > On Mon, 2008-02-04 at 22:43 +, Alan Cox wrote:
> > > > better. So for example, I personally suspect that ATA-over-ethernet is
> > > &
On Mon, 2012-10-01 at 04:46 -0400, Christoph Hellwig wrote:
> On Sun, Sep 30, 2012 at 05:58:11AM +0000, Nicholas A. Bellinger wrote:
> > From: Nicholas Bellinger
> >
> > This patch re-adds the ability to optionally run in buffered FILEIO mode
> > (eg: w/o O_DSYNC) for
On Tue, 2012-10-02 at 14:26 -0700, Jon Mason wrote:
> I am submitting version 4 of the PCI-Express Non-Transparent Bridge
> patches for inclusion in 3.7. All outstanding issues from the RFC
> process have been addressed.
>
> version 1
> http://thread.gmane.org/gmane.linux.kernel.pci/16443
>
> Ve
On Wed, 2012-10-03 at 07:47 -0400, Christoph Hellwig wrote:
> On Tue, Oct 02, 2012 at 01:16:44PM -0700, Nicholas A. Bellinger wrote:
> > * Optionally allow fd_buffered_io=1 to be enabled for people
> > * who want use the fs buffer cache as an Write
On Thu, 2012-10-04 at 21:11 +0530, Srivatsa S. Bhat wrote:
> Hi Jiri,
>
> Thanks for taking a look!
Hi Srivatsa & Jiri,
>
> > This seems to be real. You should be seeing that since 3.5-rc1 already
> > though ... ?
> >
> > Does the patch below fix that?
> >
>
> Yes, it does, thanks! But 3.6
Greetings all,
On Tue, 2008-02-12 at 17:05 +0100, Bart Van Assche wrote:
> On Feb 6, 2008 1:11 AM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> > I have always observed the case with LIO SE/iSCSI target mode ...
>
> Hello Nicholas,
>
> Are you sure that the
er
> understanding of exactly what was going on and was able to
> successfully patch what I needed to.
>
> http://www.tuttleresearch.com/80211patch.html
>
> Much appreciated,
> Mark Tuttle
>
> On 2/9/08, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
>
On Tue, 2008-02-12 at 19:57 -0800, Nicholas A. Bellinger wrote:
> Greetings all,
>
> On Tue, 2008-02-12 at 17:05 +0100, Bart Van Assche wrote:
> > On Feb 6, 2008 1:11 AM, Nicholas A. Bellinger <[EMAIL PROTECTED]> wrote:
> > > I have always observed the case
On Tue, 2008-02-12 at 22:18 -0800, Nicholas A. Bellinger wrote:
> On Tue, 2008-02-12 at 19:57 -0800, Nicholas A. Bellinger wrote:
> > Greetings all,
> >
> > On Tue, 2008-02-12 at 17:05 +0100, Bart Van Assche wrote:
> > > On Feb 6, 2008 1:11 AM, Nicholas A. Belli
Hello Linus,
This series is a second round of target fixes for v3.7-rc4 that have
come into target-devel over the last days, and are important enough to
be applied ASAP. Please go ahead and pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
All are being CC
On Fri, 2012-07-27 at 13:56 -0400, Jeff Garzik wrote:
> An Andre To Remember
> July 2012
>
> Linux lost a friend and advocate this month. Though never a household
> name, Andre Hedrick had a positive impact on everyone today running
> Linux, or using a website, with any form of IDE (A
Hi Linus,
Here is the PULL request for the initial merge of tcm_vhost based on
RFC-v5 code with MST's ACK appended to the initial merge commit.
As promised, the commit is available from two different branches for you
to consider merging as for-3.6 code.
The 'for-next-merge' branch based on mainli
Hi folks,
This is a just friendly heads up that target-pending has been updated to
latest v3.7-rc2 mainline code. As usual, the for-next* branches have
been recreated from master and include in-flight target development
patches destined for upstream during the v3.8 merge window.
Also, a heads up
Hello Linus!
The following are the current target pending fixes headed for v3.7-rc4
code. This includes the following highlights:
- Fix long-standing qla2xxx target bug where certain fc_port_t state
transitions could cause the internal session b-tree list to become
out-of-sync. (Roland)
- Fix ta
On Tue, 2012-10-30 at 21:29 -0700, Nicholas A. Bellinger wrote:
> Hello Linus!
>
> The following are the current target pending fixes headed for v3.7-rc4
> code. This includes the following highlights:
>
> - Fix long-standing qla2xxx target bug where certain fc_port_t state
&
Hi Linus,
Here is the current set of target-pending fixes for v3.11-rc7.
Please go ahead and pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
The first patch is to address a long standing issue where INQUIRY vendor
+ model response data was not correctly
On Sat, 2013-08-24 at 08:18 -0700, Christoph Hellwig wrote:
> > static int
> > +transport_generic_get_mem_bidi(struct se_cmd *cmd)
>
> Except for the fields touched in struct se_cmd this is a duplication
> of transport_generic_get_mem. I'd suggest to factor that one into
> a new helper:
>
> sta
From: Nicholas Bellinger
This patch adds TCM_MISCOMPARE_VERIFY (ASC=0x1d, ASCQ=0x00) sense
handling to transport_send_check_condition_and_sense(), which is
required for a COMPARE_AND_WRITE comparision failure.
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Petersen
Cc: Chris Mason
Cc:
From: Nicholas Bellinger
This patch adds a extra check for SCF_COMPARE_AND_WRITE within
transport_generic_request_failure() to invoke the callback for
compare_and_write_callback() or compare_and_write_done(), in
order to release se_dev->caw_mutex from the generic failure
path.
It also adds to ch
From: Nicholas Bellinger
This patch updates transport_generic_new_cmd() to call target_alloc_sgl()
for SGL + page memory allocation for se_cmd->t_bidi_data_sg.
It also adds the special case for SCF_COMPARE_AND_WRITE to calculate a
different bidi_length based upon se_cmd->t_task_nolb.
Reported-b
From: Nicholas Bellinger
This patch adds the MAXIMUM COMPARE AND WRITE LENGTH bit, currently
hardcoded to a single logical block (NoLB=1) within the Block Limits
VPD in spc_emulate_evpd_b0().
Also add emulate_caw device attribute in configfs (enabled by default)
to allow the exposure of this bit
From: Nicholas Bellinger
This patch changes target_complete_ok_work() to fall through
after calling the se_cmd->transport_complete_callback() ->
compare_and_write_post() callback, by keying off the existance
of SCF_COMPARE_AND_WRITE_POST.
This is necessary because once SCF_COMPARE_AND_WRITE_POST
From: Nicholas Bellinger
Required by COMPARE_AND_WRITE for write instance user-data
submission, in order to bypass target_execute_cmd() checks.
Reported-by: Christoph Hellwig
Cc: Roland Dreier
Cc: Nicholas Bellinger
Signed-off-by: Nicholas Bellinger
---
drivers/target/target_core_transport.
From: Nicholas Bellinger
This patch adds support for COMPARE_AND_WRITE emulation on a per block
basis. This logic is used as an atomic test and set primative currently
used by VMWare ESX VAAI for performing array side locking of individual
VMFS extent ownership.
This includes the COMPARE_AND_WR
From: Nicholas Bellinger
After COMPARE_AND_WRITE completes it's comparision, the WRITE
payload SGLs head expect to be updated to point from the verify
instance of user data, to the write instance of user data.
So for this special case, add transport_reset_sgl_orig() usage
within transport_free_p
From: Nicholas Bellinger
Reviewed-by: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Petersen
Cc: Chris Mason
Cc: James Bottomley
Cc: Nicholas Bellinger
Signed-off-by: Nicholas Bellinger
---
include/scsi/scsi.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/inc
From: Nicholas Bellinger
This patch adds a sense_reason_t return to ->transport_complete_callback(),
and updates target_complete_ok_work() to invoke the call if necessary to
transport_send_check_condition_and_sense() during the failure case.
Also update xdreadwrite_callback() to use this return
From: Nicholas Bellinger
COMPARE_AND_WRITE expects to be able to send down a DMA_FROM_DEVICE
to obtain the necessary READ payload for comparision against the
first half of the WRITE payload containing the verify user data.
Currently virtual backends expect to internally reference SGLs,
SGL nents
From: Nicholas Bellinger
This patch refactors transport_generic_get_mem() to target_alloc_sgl()
for accepting **sgl, *nents, length and zero_page as function parameters
in order to be used for both se_cmd->t_data_sg + se_cmd->t_bidi_data_sg
allocations.
Reported-by: Christoph Hellwig
Cc: Christ
From: Nicholas Bellinger
Stop keying off se_cmd->t_bidi_data_sg within transport_complete_qf()
+ target_complete_ok_work(), and just use SCF_BIDI instead.
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Petersen
Cc: Chris Mason
Cc: James Bottomley
Cc: Nicholas Bellinger
Signed-off-by:
From: Nicholas Bellinger
Hi folks,
This series -v3 adds support to target-core for generic COMPARE_AND_WRITE
emulation as defined by SBC-3 using virtual (IBLOCK, FILEIO, RAMDISK)
backends.
COMPARE_AND_WRITE is a VMWare ESX VAAI primitive that is currently used
by VMFS to perform array side lock
From: Nicholas Bellinger
Hi folks,
This -v2 series adds support to target-core for generic EXTENDED_COPY offload
emulation as defined by SPC-4 using virtual (IBLOCK, FILEIO, RAMDISK)
backends.
EXTENDED_COPY is a VMWare ESX VAAI primative that is used to perform copy
offload, that allows a targe
082 @@
+/***
+ * Filename: target_core_xcopy.c
+ *
+ * This file contains support for SPC-4 Extended-Copy offload with generic
+ * TCM backends.
+ *
+ * Copyright (c) 2011-2013 Datera, Inc. All rights reserved.
+ *
+ * Author:
+ * Nicholas A. Bellinger
+ *
+ * This program
From: Nicholas Bellinger
EXTENDED_COPY needs to be able to search a global list of devices
based on NAA WWN device identifiers, so add a simple g_device_list
protected by g_device_mutex.
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Petersen
Cc: Chris Mason
Cc: Roland Dreier
Cc: Zach
From: Nicholas Bellinger
This patch adds the Third Party Copy (3PC) bit to signal support
for EXTENDED_COPY within standard inquiry response data.
Also add emulate_3pc device attribute in configfs (enabled by default)
to allow the exposure of this bit to be disabled, if necessary.
Cc: Christoph
From: Nicholas Bellinger
Add calls to target_xcopy_setup_pt() + target_xcopy_release_pt() to
target_core_init_configfs() and target_core_exit_configfs()
respectively.
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Petersen
Cc: Chris Mason
Cc: Roland Dreier
Cc: Zach Brown
Cc: James Bo
From: Nicholas Bellinger
This patch makes spc_parse_naa_6h_vendor_specific() available to
other target code, which is required by EXTENDED_COPY when comparing
the received NAA WWN device identifer for locating the associated
se_device backend.
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Mart
From: Nicholas Bellinger
Both target_alloc_sgl() and transport_generic_map_mem_to_cmd() are
required by EXTENDED_COPY logic when setting up internally dispatched
command descriptors, so go ahead and make both of these non static.
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Petersen
C
From: Nicholas Bellinger
This patch adds an check for a non-existent port->sep_alua_tg_pt_gp_mem
within target_alua_state_check(), which is not present for internally
dispatched EXTENDED_COPY WRITE I/O to the destination target port.
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Peterse
From: Nicholas Bellinger
Setup up the se_cmd->execute_cmd() pointers for EXTENDED_COPY and
RECEIVE_COPY_RESULTS handling within spc_parse_cdb()
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Cc: Martin Petersen
Cc: Chris Mason
Cc: Roland Dreier
Cc: Zach Brown
Cc: James Bottomley
Cc: Nicholas B
From: Nicholas Bellinger
This patch makes the top-level target_core_subsystem array available
to other target code, which is required by EXTENDED_COPY to pin the
backend se_device using configfs_depend_item(), in order to ensure
it can't be removed for the duration of a EXTENDED_COPY operation.
On Mon, 2013-08-26 at 15:46 -0700, Zach Brown wrote:
> On Mon, Aug 26, 2013 at 10:02:59PM +0000, Nicholas A. Bellinger wrote:
> > From: Nicholas Bellinger
> >
> > Hi folks,
> >
> > This -v2 series adds support to target-core for generic EXTENDED_COPY
> >
tees and it's absolutely not a correctness issue, so I don't think
it's worth the extra code.
v4 changes:
- Fix tags.c reference in percpu_ida_init (akpm)
Signed-off-by: Kent Overstreet
Cc: Tejun Heo
Cc: Oleg Nesterov
Cc: Christoph Lameter
Cc: Ingo Molnar
Cc: Andi Kleen
Cc: Jens Axbo
From: Nicholas Bellinger
This patch changes vhost/scsi to use transport_init_session_tags()
pre-allocation logic for per-cpu session tag pooling with internal
ida_alloc() + ida_free() calls based upon the saved se_cmd->map_tag id.
FIXME: Make transport_init_session_tags() number of tags setup
co
From: Nicholas Bellinger
This patch adds support for pre-allocation of per tv_cmd descriptor
scatterlist + user-space page pointer memory using se_sess->sess_cmd_map
within tcm_vhost_make_nexus() code.
This includes sanity checks within vhost_scsi_map_to_sgl()
to reject I/O that exceeds these in
From: Nicholas Bellinger
Hi folks,
This is an updated -v4 series for adding tag pre-allocation support of
target fabric descriptor memory, utilizing Kent's latest per-cpu ida
bits.
The first patch is a standalone version of per-cpu-ida, seperate from
the full idr rewrite from Kent that is still
From: Nicholas Bellinger
This patch adds lib/idr.c based transport_init_session_tags() logic
that allows fabric drivers to setup a per-cpu se_sess->sess_tag_pool
and associated se_sess->sess_cmd_map for basic tagged pre-allocation
of fabric descriptor sized memory.
v4: Add transport_alloc_sessio
From: Nicholas Bellinger
This patch changes iscsi-target to use transport_alloc_session_tags()
pre-allocation logic for per-cpu session tag pooling with internal
ida_alloc() + ida_free() calls based upon the saved se_cmd->map_tag id.
This includes tag pool setup based upon per NodeACL queue_dept
From: Nicholas Bellinger
This command converts iscsi/isert-target to use allocations based on
iscsit_transport->priv_size within iscsit_allocate_cmd(), instead of
using an embedded isert_cmd->iscsi_cmd.
This includes removing iscsit_transport->alloc_cmd() usage, along
with updating isert-target
On Tue, 2013-08-27 at 13:43 -0700, Andrew Morton wrote:
> On Tue, 27 Aug 2013 20:11:41 +0000 "Nicholas A. Bellinger"
> wrote:
>
> > Percpu frontend for allocating ids. With percpu allocation (that works),
> > it's impossible to guarantee it will always be
On Wed, 2013-10-02 at 17:55 -0700, Nick Swenson wrote:
> Removing unused struct percpu_ida *pool from arguemnts of
> alloc_local_tag, changed it's one use in idr.c
>
> Signed-Off-By: Nick Swenson
> ---
Nice patch, but the upstream version of percpu_ida lives in
lib/percpu_ida.c, and not lib/idr.
On Wed, 2013-10-02 at 18:29 +, KY Srinivasan wrote:
>
> > -Original Message-
> > From: geert.uytterhoe...@gmail.com [mailto:geert.uytterhoe...@gmail.com]
> > On Behalf Of Geert Uytterhoeven
> > Sent: Wednesday, September 25, 2013 1:40 AM
> > To: KY Srinivasan
> > Cc: Mike Christie; Jac
Hello Linus!
Here are the outstanding target fixes queued up for v3.12-rc4 code.
Please go ahead and pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
The highlights include:
- Make vhost/scsi tag percpu_ida_alloc() use GFP_ATOMIC
- Allow sess_cmd_map
On Mon, 2013-07-08 at 13:47 +1000, Stephen Rothwell wrote:
> Hi Michael,
>
> Today's linux-next merge of the vhost tree got a conflict in
> drivers/vhost/scsi.c between commit 084ed45b3846 ("vhost/scsi: Convert to
> se_cmd->cmd_kref TARGET_SCF_ACK_KREF usage") from the target-updates tree
> and co
On Tue, 2013-07-09 at 13:27 +1000, Stephen Rothwell wrote:
> Hi Nicholas,
>
> On Mon, 08 Jul 2013 18:13:26 -0700 "Nicholas A. Bellinger"
> wrote:
> >
> > On Mon, 2013-07-08 at 13:47 +1000, Stephen Rothwell wrote:
> > >
> > > Today&#x
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