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James Smart e6da726eb6 scsi: lpfc: Fix pt2pt NVMe PRLI reject LOGO loop 
commit 7f4c5a26f7 upstream.

When connected point to point, the driver does not know the FC4's supported
by the other end. In Fabrics, it can query the nameserver.  Thus the driver
must send PRLIs for the FC4s it supports and enable support based on the
acc(ept) or rej(ect) of the respective FC4 PRLI.  Currently the driver
supports SCSI and NVMe PRLIs.

Unfortunately, although the behavior is per standard, many devices have
come to expect only SCSI PRLIs. In this particular example, the NVMe PRLI
is properly RJT'd but the target decided that it must LOGO after seeing the
unexpected NVMe PRLI. The LOGO causes the sequence to restart and login is
now in an infinite failure loop.

Fix the problem by having the driver, on a pt2pt link, remember NVMe PRLI
accept or reject status across logout as long as the link stays "up".  When
retrying login, if the prior NVMe PRLI was rejected, it will not be sent on
the next login.

Link: https://lore.kernel.org/r/20220212163120.15385-1-jsmart2021@gmail.com
Cc: <stable@vger.kernel.org> # v5.4+
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-23 12:03:20 +01:00
arch arm64: dts: meson-g12: drop BL32 region from SEI510/SEI610 2022-02-23 12:03:18 +01:00
block block: fix surprise removal for drivers calling blk_set_queue_dying 2022-02-23 12:03:15 +01:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto crypto: api - Move cryptomgr soft dependency into algapi 2022-02-11 09:10:26 +01:00
Documentation ARM: dts: Fix timer regression for beagleboard revision c 2022-02-16 12:56:21 +01:00
drivers scsi: lpfc: Fix pt2pt NVMe PRLI reject LOGO loop 2022-02-23 12:03:20 +01:00
fs mm: io_uring: allow oom-killer from io_uring_setup 2022-02-23 12:03:18 +01:00
include x86/bug: Merge annotate_reachable() into _BUG_FLAGS() asm 2022-02-23 12:03:17 +01:00
init init: make unknown command line param message clearer 2021-11-18 19:17:11 +01:00
ipc ipc/sem: do not sleep with a spin lock held 2022-02-08 18:34:03 +01:00
kernel tracing: Fix tp_printk option related with tp_printk_stop_on_boot 2022-02-23 12:03:19 +01:00
lib lib/test_meminit: destroy cache in kmem_cache_alloc_bulk() test 2022-01-27 11:05:44 +01:00
LICENSES
mm mm: don't try to NUMA-migrate COW pages that have other uses 2022-02-23 12:03:03 +01:00
net xprtrdma: fix pointer derefs in error cases of rpcrdma_ep_create 2022-02-23 12:03:19 +01:00
samples samples: bpf: Fix 'unknown warning group' build warning on Clang 2022-01-27 11:03:29 +01:00
scripts kconfig: fix failing to generate auto.conf 2022-02-23 12:03:20 +01:00
security ima: Do not print policy rule with inactive LSM labels 2022-02-16 12:56:04 +01:00
sound ASoC: qcom: Actually clear DMA interrupt register for HDMI 2022-02-23 12:03:15 +01:00
tools selftests: fixup build warnings in pidfd / clone3 tests 2022-02-23 12:03:18 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt KVM: eventfd: Fix false positive RCU usage warning 2022-02-16 12:56:16 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild
Kconfig
MAINTAINERS drm fixes for 5.15 final 2021-10-28 12:17:01 -07:00
Makefile Linux 5.15.24 2022-02-16 12:56:41 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.