Change '---help---' into 'help'. See also Linux kernel commit f70f74d15ca8
("kconfig: remove '---help---' support") # v5.9.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9216 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Use a workqueue for processing RDMA completions instead of creating one
kernel thread per RDMA channel. This change improves performance if the
number of RDMA channels is large by reducing the number of context
switches between kernel threads while processing RDMA completions. An
additional change is that srpt_set_ch_state() no longer wakes up the
RDMA completion context but that srpt_cm_rtu_recv() wakes up the RDMA
completion context instead.
See also https://github.com/bvanassche/scst/issues/33 .
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9178 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- Return EOPNOTSUPP instead of ENOTSUPP to user space.
- Do not terminate macro definitions with a trailing semicolon.
- Do not initialize static variables to zero.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9176 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The latter name reflects better the role of this variable. Remove the
CPPFLAGS assignment from srpt/src/Kbuild because it is not useful.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9082 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Since not all kernel header files are compatible with -Wextra, remove -Wextra.
To enable -Wextra, build SCST with W=1.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9054 d57e44dd-8a1f-0410-8b47-8ef2f437770f
$(KBUILD_EXTRA_SYMBOLS) is not only used at compile time but also at link
time. Move the $(KBUILD_EXTRA_SYMBOLS) definitions such that it is
available both at compile time and at link time.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9000 d57e44dd-8a1f-0410-8b47-8ef2f437770f
While $(src) is always defined, $(KBUILD_EXTMOD) is only defined when
building code as an external module.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8999 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Running fio at the initiator side with buffer size 1 MiB and when using
direct I/O triggers the following error with a ConnectX-3 and Linux kernel
v4.19 or later or CentOS 7.7 or later at the target side:
ib_srpt: RDMA t 4 for idx 20 failed with status 5. If this has not been triggered by a cable pull, please check the involved IB HCA's and cables.
This was observed with firmware version 2.42.5000 but this is probably
independent of the firmware version. Fix this by reducing the send SGE QP
limit. This patch increases ch->max_recv_sge for older kernel versions.
Reported-by: Chesnokov Gleb <Chesnokov.G@raidix.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8938 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The path_rec pointer is set for IB and RoCE logins but not for iWARP
logins. Hence check the path_rec pointer before dereferencing it.
See also upstream commit cbca2442a096 ("RDMA/srpt: Fix handling of iWARP
logins") # v5.5.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8934 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The scst_user device handler allocates its own data buffers. If ib_srpt
uses zero-copy mode, copy data as required between the device handler and
zero-copy buffer.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8914 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This patch adds support for kernel module namespaces. This patch is essential
when using SCST in combination with kernel version v5.4 or later.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8673 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This patch makes it possible to build the ib_srpt driver against a kernel
before v5.1 + latest MOFED.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8655 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This patch makes it possible to build the ib_srpt driver against a kernel
before v4.21 + latest MOFED.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8653 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Move the build_mode file from the top level into the scst directory. Write
build mode defines into scst/include/build_mode.h and include that file
directly or indirectly in all source files that depend on these #defines.
This approach has the advantage that "make clean" does no longer has to
be run when switching between build modes because the kernel build system
recognizes build_mode.h as a dependency and triggers a rebuild of all
source files that directly or indirectly include the build_mode.h header
file.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8347 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This patch avoids that the build_mode file is read when applying the
generate-kernel-patch output to the kernel tree and when building the
kernel tree.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8272 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Move the $(SCST_INC_DIR) definitions from the out-of-tree sections into
the in-kernel sections. Since SCST is now distributed as a single tar
archive, only support in-tree builds with $(SCST_INC_DIR) and $(SCST_DIR).
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8079 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Additionally, rename BUILDMODE into BUILD_MODE and FCST/SRPTFLAGS into
BUILD_MODE_CFLAGS_.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8073 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Since all RHEL/CentOS 5 users have upgraded to a newer version, procfs
support is no longer necessary. Hence remove procfs support. This patch
has been generated as follows:
git grep -lw CONFIG_SCST_PROC iscsi-scst qla2x00t scst scst_local srpt |\
while read f; do
echo ${f}
unifdef -U CONFIG_SCST_PROC ${f} >${f}.out
mv ${f}.out ${f}
done
followed by two small manual edits in scst/include/scst.h and also in
qla2x00t/qla2x00-target/qla2x00t.c.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7999 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This implementation conforms to the SRP2 standard and hence is compatible
with the immediate data implementation in the Linux kernel v4.21 SRP initiator.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7854 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Remove the non-standard support for immediate data from the ib_srpt driver.
This will make porting this driver to kernel v4.21 easier.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7852 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This patch avoids that the following warning is reported when building
against kernel v4.21:
================= WARNING ================
'SUBDIRS' will be removed after Linux 5.3
Please use 'M=' or 'KBUILD_EXTMOD' instead
==========================================
A quote from an upstream kernel patch:
commit 07e5823127155b3a29003aca926f87c9843f6810
Author: Andrew Morton <akpm@osdl.org>
Date: Mon Apr 12 01:05:40 2004 -0700
[PATCH] kbuild: external module support
From: Sam Ravnborg <sam@ravnborg.org>
Based on initial patch from Andreas Gruenbacher there is now better support
for building external modules with kbuild.
The preferred syntax is now:
make -C $KERNELSRC M=$PWD
but the old syntax:
make -C $KERNELSRC SUBDIRS=$PWD modules
will remain supported.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7851 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Except for adding a few pr_info() statements, this patch does not change any
functionality.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7840 d57e44dd-8a1f-0410-8b47-8ef2f437770f
