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There is at least one Chelsio 10Gb card which uses VPD area to store some
non-standard blocks (example below). However pci_vpd_size() returns the
length of the first block only assuming that there can be only one VPD "End
Tag".
Since 4e1a635552d3 ("vfio/pci: Use kernel VPD access functions"), VFIO
blocks access beyond that offset, which prevents the guest "cxgb3" driver
from probing the device. The host system does not have this problem as its
driver accesses the config space directly without pci_read_vpd().
Add a quirk to override the VPD size to a bigger value. The maximum size
is taken from EEPROMSIZE in drivers/net/ethernet/chelsio/cxgb3/common.h.
We do not read the tag as the cxgb3 driver does as the driver supports
writing to EEPROM/VPD and when it writes, it only checks for 8192 bytes
boundary. The quirk is registered for all devices supported by the cxgb3
driver.
This adds a quirk to the PCI layer (not to the cxgb3 driver) as the cxgb3
driver itself accesses VPD directly and the problem only exists with the
vfio-pci driver (when cxgb3 is not running on the host and may not be even
loaded) which blocks accesses beyond the first block of VPD data. However
vfio-pci itself does not have quirks mechanism so we add it to PCI.
This is the controller:
Ethernet controller [0200]: Chelsio Communications Inc T310 10GbE Single Port Adapter [1425:0030]
This is what I parsed from its VPD:
===
b'\x82*\x0010 Gigabit Ethernet-SR PCI Express Adapter\x90J\x00EC\x07D76809 FN\x0746K'
0000 Large item 42 bytes; name 0x2 Identifier String
b'10 Gigabit Ethernet-SR PCI Express Adapter'
002d Large item 74 bytes; name 0x10
#00 [EC] len=7: b'D76809 '
#0a [FN] len=7: b'46K7897'
#14 [PN] len=7: b'46K7897'
#1e [MN] len=4: b'1037'
#25 [FC] len=4: b'5769'
#2c [SN] len=12: b'YL102035603V'
#3b [NA] len=12: b'00145E992ED1'
007a Small item 1 bytes; name 0xf End Tag
0c00 Large item 16 bytes; name 0x2 Identifier String
b'S310E-SR-X '
0c13 Large item 234 bytes; name 0x10
#00 [PN] len=16: b'TBD '
#13 [EC] len=16: b'110107730D2 '
#26 [SN] len=16: b'97YL102035603V '
#39 [NA] len=12: b'00145E992ED1'
#48 [V0] len=6: b'175000'
#51 [V1] len=6: b'266666'
#5a [V2] len=6: b'266666'
#63 [V3] len=6: b'2000 '
#6c [V4] len=2: b'1 '
#71 [V5] len=6: b'c2 '
#7a [V6] len=6: b'0 '
#83 [V7] len=2: b'1 '
#88 [V8] len=2: b'0 '
#8d [V9] len=2: b'0 '
#92 [VA] len=2: b'0 '
#97 [RV] len=80: b's\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'...
0d00 Large item 252 bytes; name 0x11
#00 [VC] len=16: b'122310_1222 dp '
#13 [VD] len=16: b'610-0001-00 H1\x00\x00'
#26 [VE] len=16: b'122310_1353 fp '
#39 [VF] len=16: b'610-0001-00 H1\x00\x00'
#4c [RW] len=173: b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'...
0dff Small item 0 bytes; name 0xf End Tag
10f3 Large item 13315 bytes; name 0x62
!!! unknown item name 98: b'\xd0\x03\x00@`\x0c\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00'
===
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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It's not very enlightening to see
pci 0000:07:00.0: [Firmware Bug]: VPD access disabled
in the dmesg log because there's no clue about what the firmware bug is.
Expand the message to explain why we're disabling VPD.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Remove the "PCI Express Hot Plug Controller Driver" version message. I
don't think it contains any useful information. Remove unused #defines
and move the author information to a comment.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Remove the "PCI Hot Plug PCI Core" version message. I don't think it
contains any useful information. Remove unused #defines and move the
author information to a comment.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Remove the "service driver %s loaded" and unloaded messages. All service
drivers already log something in their probe functions, where they can log
more useful details.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Add a log message when we enable AER on a Root Port and the hierarchy below
it.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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All other AER-related log messages use the PCI device, e.g.,
"pci 0000:00:1c.0", not the PCIe service device, e.g.,
"aer 0000:00:1c.0:pcie02".
Change the probe error messages to match the rest and include a little
context.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Remove the unused DRIVER_VERSION, DRIVER_AUTHOR, and DRIVER_DESC macros.
The author information is already included in a comment above.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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We already log a "Signaling PME" whenever the PME service driver claims a
Root Port. In fact, we also log the same message for every device in the
hierarchy below the Root Port.
Log the "Signaling PME" once (only for the Root Port, since we can
trivially find out which devices are below the Root Port), and include the
IRQ number in the message to help connect the dots with /proc/interrupts.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Since we register pcie_pme_driver only for PCI_EXP_TYPE_ROOT_PORT, the PME
driver never claims Root Complex Event Collectors.
Remove unused code related to Root Complex Event Collectors.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Move PCI configuration space size macros (PCI_CFG_SPACE_SIZE and
PCI_CFG_SPACE_EXP_SIZE) from drivers/pci/pci.h to
include/uapi/linux/pci_regs.h so they can be used by more drivers and
eliminate duplicate definitions.
[bhelgaas: Expand comment to include PCI-X details]
Signed-off-by: Wang Sheng-Hui <shhuiw@foxmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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'spi/topic/ti-qspi', 'spi/topic/topcliff-pch' and 'spi/topic/xlp' into spi-next
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'spi/topic/rspi' and 'spi/topic/s3c64xx' into spi-next
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Pull networking updates from David Miller:
1) Platform regulatory domain support for ath10k, from Bartosz
Markowski.
2) Centralize min/max MTU checking, thus removing tons of duplicated
code all of the the various drivers. From Jarod Wilson.
3) Support ingress actions in act_mirred, from Shmulik Ladkani.
4) Improve device adjacency tracking, from David Ahern.
5) Add support for LED triggers on PHY link state changes, from Zach
Brown.
6) Improve UDP socket memory accounting, from Paolo Abeni.
7) Set SK_MEM_QUANTUM to a fixed size of 4096, instead of PAGE_SIZE.
From Eric Dumazet.
8) Collapse TCP SKBs at retransmit time even if the right side SKB has
frags. Also from Eric Dumazet.
9) Add IP_RECVFRAGSIZE and IPV6_RECVFRAGSIZE cmsgs, from Willem de
Bruijn.
10) Support routing by UID, from Lorenzo Colitti.
11) Handle L3 domain binding (ie. VRF) for RAW sockets, from David
Ahern.
12) tcp_get_info() can run lockless, from Eric Dumazet.
13) 4-tuple UDP hashing in SFC driver, from Edward Cree.
14) Avoid reorders in GRO code, from Eric Dumazet.
15) IPV6 Segment Routing support, from David Lebrun.
16) Support MPLS push and pop for L3 packets in openvswitch, from Jiri
Benc.
17) Add LRU datastructure support for BPF, Martin KaFai Lau.
18) VF support in liquidio driver, from Raghu Vatsavayi.
19) Multiqueue support in alx driver, from Tobias Regnery.
20) Networking cgroup BPF support, from Daniel Mack.
21) TCP chronograph measurements, from Francis Yan.
22) XDP support for qed driver, from Yuval Mintz.
23) BPF based lwtunnels, from Thomas Graf.
24) Consistent FIB dumping to offloading drivers, from Ido Schimmel.
25) Many optimizations for UDP under high load, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits)
netfilter: nft_counter: rework atomic dump and reset
e1000: use disable_hardirq() for e1000_netpoll()
i40e: don't truncate match_method assignment
net: ethernet: ti: netcp: add support of cpts
net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause
net: l2tp: ppp: change PPPOL2TP_MSG_* => L2TP_MSG_*
net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_*
net: l2tp: export debug flags to UAPI
net: ethernet: stmmac: remove private tx queue lock
net: ethernet: sxgbe: remove private tx queue lock
net: bridge: shorten ageing time on topology change
net: bridge: add helper to set topology change
net: bridge: add helper to offload ageing time
net: nicvf: use new api ethtool_{get|set}_link_ksettings
net: ethernet: ti: cpsw: sync rates for channels in dual emac mode
net: ethernet: ti: cpsw: re-split res only when speed is changed
net: ethernet: ti: cpsw: combine budget and weight split and check
net: ethernet: ti: cpsw: don't start queue twice
net: ethernet: ti: cpsw: use same macros to get active slave
net: mvneta: select GENERIC_ALLOCATOR
...
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'spi/topic/jcore' and 'spi/topic/omap' into spi-next
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'spi/topic/fsl-dspi' and 'spi/topic/fsl-espi' into spi-next
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'spi/topic/atmel' and 'spi/topic/axi' into spi-next
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'spi/fix/spidev' into spi-linus
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'asoc/topic/zte' into asoc-next
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'asoc/topic/wm8978', 'asoc/topic/wm9081' and 'asoc/topic/wm9705' into asoc-next
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'asoc/topic/topology', 'asoc/topic/uda1380', 'asoc/topic/wm2200' and 'asoc/topic/wm8523' into asoc-next
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'asoc/topic/sti-codec', 'asoc/topic/sunxi' and 'asoc/topic/tegra' into asoc-next
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'asoc/topic/rt5677', 'asoc/topic/samsung' and 'asoc/topic/simple' into asoc-next
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'asoc/topic/rt5640', 'asoc/topic/rt5660' and 'asoc/topic/rt5663' into asoc-next
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'asoc/topic/rockchip', 'asoc/topic/rt286' and 'asoc/topic/rt298' into asoc-next
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'asoc/topic/qcom' and 'asoc/topic/rk808' into asoc-next
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'asoc/topic/max98504' and 'asoc/topic/nau8825' into asoc-next
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'asoc/topic/extcon' and 'asoc/topic/fsl' into asoc-next
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into asoc-next
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'asoc/topic/cs42l73' and 'asoc/topic/cs42xx8' into asoc-next
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'asoc/topic/cs35l34' into asoc-next
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'asoc/topic/atmel', 'asoc/topic/bcm' and 'asoc/topic/bitfield' into asoc-next
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into asoc-linus
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buf was allocated by kzalloc() so it should be passed to kfree()
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This struct never needs to be modified. The size of pci-mid.o ELF
sections changes thusly:
-.data 56
+.data 0
-.rodata 32
+.rodata 88
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
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When num_kcontrols is zero, widget->dobj.widget.kcontrol_type
gets set to an uninitialized local variable:
sound/soc/soc-topology.c: In function 'soc_tplg_dapm_widget_create':
sound/soc/soc-topology.c:1566:36: error: 'kcontrol_type' may be used uninitialized in this function [-Werror=maybe-uninitialized]
I could not figure out which of the valid types would be appropriate
here, so this sets it to '0', which is invalid but at least well-defined
here. There is probably a better way to address the issue.
Fixes: eea3dd4f1247 ("ASoC: topology: Only free TLV for volume mixers of a widget")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Once upon a time it made sense to keep the mmc block device driver and its
related code, in its own directory called card. Over time, more an more
functions/structures have become shared through generic mmc header files,
between the core and the card directory. In other words, the relationship
between them has become closer.
By sharing functions/structures via generic header files, it becomes easy
for outside users to abuse them. In a way to avoid that from happen, let's
move the files from card directory into the core directory, as it enables
us to move definitions of functions/structures into mmc core specific
header files.
Note, this is only the first step in providing a cleaner mmc interface for
outside users. Following changes will do the actual cleanup, as that is not
part of this change.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
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Only mark a page as managed when it is released back to the allocator.
This ensures that the managed page count does not get falsely increased
when a VM is running. Correspondingly change it so that pages are
marked as unmanaged after getting them from the allocator.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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/proc/xen/xenbus does not work correctly. A read blocked waiting for
a xenstore message holds the mutex needed for atomic file position
updates. This blocks any writes on the same file handle, which can
deadlock if the write is needed to unblock the read.
Clear FMODE_ATOMIC_POS when opening this device to always get
character device like sematics.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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