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Jörg Wedekind 1dee290109 PCI: Mark 3ware-9650SE Root Port Extended Tags as broken
[ Upstream commit baf67aefbe ]

Per PCIe r6.1, sec 2.2.6.2 and 7.5.3.4, a Requester may not use 8-bit Tags
unless its Extended Tag Field Enable is set, but all Receivers/Completers
must handle 8-bit Tags correctly regardless of their Extended Tag Field
Enable.

Some devices do not handle 8-bit Tags as Completers, so add a quirk for
them.  If we find such a device, we disable Extended Tags for the entire
hierarchy to make peer-to-peer DMA possible.

The 3ware 9650SE seems to have issues with handling 8-bit tags. Mark it as
broken.

This fixes PCI Parity Errors like :

  3w-9xxx: scsi0: ERROR: (0x06:0x000C): PCI Parity Error: clearing.
  3w-9xxx: scsi0: ERROR: (0x06:0x000D): PCI Abort: clearing.
  3w-9xxx: scsi0: ERROR: (0x06:0x000E): Controller Queue Error: clearing.
  3w-9xxx: scsi0: ERROR: (0x06:0x0010): Microcontroller Error: clearing.

Link: https://lore.kernel.org/r/20240219132811.8351-1-joerg@wedekind.de
Fixes: 60db3a4d8c ("PCI: Enable PCIe Extended Tags if supported")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=202425
Signed-off-by: Jörg Wedekind <joerg@wedekind.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:19:50 -04:00
arch powerpc: Force inlining of arch_vmap_p{u/m}d_supported() 2024-03-26 18:19:48 -04:00
block block: Provide bdev_open_* functions 2024-03-26 18:19:40 -04:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: algif_hash - Remove bogus SGL free on zero-length error path 2024-02-23 09:25:11 +01:00
Documentation dt-bindings: msm: qcom, mdss: Include ommited fam-b compatible 2024-03-26 18:19:47 -04:00
drivers PCI: Mark 3ware-9650SE Root Port Extended Tags as broken 2024-03-26 18:19:50 -04:00
fs quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:19:46 -04:00
include clk: renesas: r8a779g0: Correct PFC/GPIO parent clocks 2024-03-26 18:19:47 -04:00
init update workarounds for gcc "asm goto" issue 2024-02-23 09:24:47 +01:00
io_uring io_uring/net: fix overflow check in io_recvmsg_mshot_prep() 2024-03-26 18:19:18 -04:00
ipc Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
kernel bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes() 2024-03-26 18:19:41 -04:00
lib net: blackhole_dev: fix build warning for ethh set but not used 2024-03-26 18:19:26 -04:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm quota: Properly annotate i_dquot arrays with __rcu 2024-03-26 18:19:46 -04:00
net net/x25: fix incorrect parameter validation in the x25_getsockopt() function 2024-03-26 18:19:41 -04:00
rust rust: upgrade to Rust 1.73.0 2024-02-16 19:10:43 +01:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-23 09:24:47 +01:00
scripts gen_compile_commands: fix invalid escape sequence warning 2024-03-26 18:19:11 -04:00
security landlock: Fix asymmetric private inodes referring 2024-03-06 14:48:39 +00:00
sound ASoC: SOF: Add some bounds checking to firmware data 2024-03-26 18:19:48 -04:00
tools perf metric: Don't remove scale from counts 2024-03-26 18:19:48 -04:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt ARM: 2023-09-07 13:52:20 -07:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: rename binkernel.spec to kernel.spec 2023-07-25 00:59:33 +09:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: add Catherine as xfs maintainer for 6.6.y 2024-02-16 19:10:43 +01:00
Makefile Linux 6.6.22 2024-03-15 14:25:07 -04:00
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.