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Nicholas Bellinger c50e87ecca iscsi-target: Add login_keys_workaround attribute for non RFC initiators 
commit 138d351eef upstream.

This patch re-introduces part of a long standing login workaround that
was recently dropped by:

  commit 1c99de981f
  Author: Nicholas Bellinger <nab@linux-iscsi.org>
  Date:   Sun Apr 2 13:36:44 2017 -0700

      iscsi-target: Drop work-around for legacy GlobalSAN initiator

Namely, the workaround for FirstBurstLength ended up being required by
Mellanox Flexboot PXE boot ROMs as reported by Robert.

So this patch re-adds the work-around for FirstBurstLength within
iscsi_check_proposer_for_optional_reply(), and makes the key optional
to respond when the initiator does not propose, nor respond to it.

Also as requested by Arun, this patch introduces a new TPG attribute
named 'login_keys_workaround' that controls the use of both the
FirstBurstLength workaround, as well as the two other existing
workarounds for gPXE iSCSI boot client.

By default, the workaround is enabled with login_keys_workaround=1,
since Mellanox FlexBoot requires it, and Arun has verified the Qlogic
MSFT initiator already proposes FirstBurstLength, so it's uneffected
by this re-adding this part of the original work-around.

Reported-by: Robert LeBlanc <robert@leblancnet.us>
Cc: Robert LeBlanc <robert@leblancnet.us>
Reviewed-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-27 15:06:04 -07:00
..
acpi Merge branch 'acpi-pci' 2015-11-07 01:30:10 +01:00
asm-generic asm-generic: make copy_from_user() zero the destination properly 2016-09-24 10:07:45 +02:00
clocksource
crypto crypto: ahash - Fix EINPROGRESS notification callback 2017-04-21 09:30:06 +02:00
drm drm/ttm, drm/vmwgfx: Relax permission checking when opening surfaces 2017-04-12 12:38:33 +02:00
dt-bindings ARM: DT updates for v4.4 2015-11-10 15:06:26 -08:00
keys
kvm KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active 2015-11-24 18:07:40 +01:00
linux Add "shutdown" to "struct class". 2017-07-21 07:44:58 +02:00
math-emu
media videobuf2-core: Check user space planes array in dqbuf 2016-05-04 14:48:50 -07:00
memory
misc
net net: ipv6: Compare lwstate in detecting duplicate nexthops 2017-07-21 07:44:55 +02:00
pcmcia
ras
rdma RDMA/core: Fix incorrect structure packing for booleans 2017-03-12 06:37:29 +01:00
rxrpc
scsi scsi: libiscsi: add lock around task lists to fix list corruption regression 2017-03-26 12:13:19 +02:00
soc ARM: at91: define LPDDR types 2017-03-12 06:37:24 +01:00
sound ALSA: rawmidi: Make snd_rawmidi_transmit() race-free 2016-02-17 12:30:58 -08:00
target iscsi-target: Add login_keys_workaround attribute for non RFC initiators 2017-07-27 15:06:04 -07:00
trace tracing: Add #undef to fix compile error 2017-03-18 19:09:57 +08:00
uapi USB: hub: fix SS max number of ports 2017-06-26 07:13:09 +02:00
video drm/imx: Match imx-ipuv3-crtc components using device node in platform data 2016-06-07 18:14:37 -07:00
xen xen: Fix page <-> pfn conversion on 32 bit systems 2016-05-11 11:21:14 +02:00
Kbuild