From: Menglong Dong
'HWMON_T_INPUT' and 'HWMON_T_MIN_ALARM' in power_supply_hwmon_info are
duplicated and can be removed.
Signed-off-by: Menglong Dong
---
drivers/power/supply/power_supply_hwmon.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/power/supply/power_supply_hwmon.c
b
On Mon, 2021-01-11 at 15:13 -0800, Jakub Kicinski wrote:
> On Mon, 11 Jan 2021 11:55:53 -0800 Atish Patra wrote:
> > There is no usrio config defined for default gem config leading to
> > a kernel panic devices that don't define a data. This issue can be
> > reprdouced with microchip polar fire soc
Signed-off-by: Zhaoge Zhang
---
drivers/gpu/drm/drm_file.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
index b50380f..8548e8b 100644
--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@@ -240,9 +240,6 @@ static void
Hi Richard
> Some codecs need plls and/or sysclks to be configured using the
> snd_soc_component_set_[sysclk|pll] functions. These drivers cannot
> necessarily be converted to use the clock framework. If the codec is on
> a I2C/SPI bus, a nested clk_get would be needed to enable the bus clock.
>
On Mon, 2021-01-04 at 22:49 +0100, Stephan Müller wrote:
> The kernel crypto API provides the SP800-108 counter KDF implementation.
> Thus, the separate implementation provided as part of the keys subsystem
> can be replaced with calls to the KDF offered by the kernel crypto API.
>
> The keys subs
Power and performance measurements were made using my freqbench [1]
benchmark coordinator, which isolates, offlines, and disables the timer
tick on test CPUs to maximize accuracy. It uses EEMBC CoreMark [2] as
the workload and measures power usage using the PM8150B PMIC's fuel
gauge.
The energy mo
On 2021/1/11 19:45, Chao Yu wrote:
On 2021/1/11 18:31, Chao Yu wrote:
On 2021/1/11 17:48, Jaegeuk Kim wrote:
Hi Chao,
After quick test of fsstress w/ fault injection, it gave wrong block address
errors. Could you please run the test a bit?
Jaegeuk,
Oh, I've covered with fstest cases and the
sm8250 has a big.LITTLE CPU setup with DynamIQ, so all cores are within
the same CPU cluster and LLC (Last-Level Cache) domain. Define this
topology to help the scheduler make decisions.
Signed-off-by: Danny Lin
---
arch/arm64/boot/dts/qcom/sm8250.dtsi | 36
1 file c
sdm660 has a big.LITTLE 4+4 CPU setup with CPUs 0-3 being little cores
and CPUs 4-7 being big cores. The big cores have higher IPC, so they
should have the higher capacity-dmips-mhz, not the other way around as
the device tree currently describes it. Fix the incorrect CPU map to
improve EAS schedul
On Mon, 11 Jan 2021 11:10:56 +0100 Petr Mladek wrote:
> Adding Kees into CC because it is security related.
> Adding Andrew into CC because he usually takes patches for hexdump.
>
> On Wed 2021-01-06 15:35:47, Timur Tabi wrote:
> > Hashed addresses are useless in hexdumps unless you're comparing
Hello:
This patch was applied to netdev/net-next.git (refs/heads/master):
On Fri, 8 Jan 2021 22:21:04 + you wrote:
> From: Danilo Carvalho
>
> List of things fixed:
> - Two of the socket options were idented with spaces instead of tabs.
> - Trailing whitespace in some lines.
> - Impr
Fix the following sparse warning:
drivers/phy/mediatek/phy-mtk-mipi-dsi.c:237:24: warning: symbol
'mtk_mipi_tx_driver' was not declared. Should it be static?
Signed-off-by: Zou Wei
---
drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/d
On Mon, 11 Jan 2021 09:06:22 -0800 Suren Baghdasaryan wrote:
> process_madvise currently requires ptrace attach capability.
> PTRACE_MODE_ATTACH gives one process complete control over another
> process. It effectively removes the security boundary between the
> two processes (in one direction).
On 1/11/21 5:06 PM, Frank Rowand wrote:
On 1/8/21 2:41 AM, Viresh Kumar wrote:
Now that fdtoverlay is part of the kernel build, start using it to test
the unitest overlays we have by applying them statically.
The file overlay_base.dtb have symbols of its own and we need to apply
overlay.dtb
On 1/10/21 4:40 AM, Muchun Song wrote:
> There is a race between dissolve_free_huge_page() and put_page(),
> and the race window is quite small. Theoretically, we should return
> -EBUSY when we encounter this race. In fact, we have a chance to
> successfully dissolve the page if we do a retry. Beca
On Tue, 22 Dec 2020 20:16:02 -0500
Tony Krowiak wrote:
> Let's implement the callback to indicate when an APQN
> is in use by the vfio_ap device driver. The callback is
> invoked whenever a change to the apmask or aqmask would
> result in one or more queue devices being removed from the driver. T
On Mon, Jan 11, 2021 at 7:58 PM Al Viro wrote:
>
> On Mon, Jan 11, 2021 at 07:30:11PM -0500, Willem de Bruijn wrote:
> > From: Willem de Bruijn
> >
> > Use in_compat_syscall() to differentiate compat handling exactly
> > where needed, including in nested function calls. Then remove
> > duplicated
Fix the following sparse warning:
drivers/media/platform/ti-vpe/cal-camerarx.c:783:32: warning: symbol
'cal_camerarx_media_ops' was not declared. Should it be static?
Signed-off-by: Zou Wei
---
drivers/media/platform/ti-vpe/cal-camerarx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
On Mon, Jan 11, 2021 at 5:00 PM Borislav Petkov wrote:
>
> On Mon, Jan 11, 2021 at 04:41:52PM -0800, Fāng-ruì Sòng wrote:
> > To be fair: we cannot use
>
> Who's "we"?
>
> > .L-prefixed local because of the objtool limitation.
>
> What objtool limitation? I thought clang's assembler removes .text
Christophe Leroy writes:
> From: Andreas Schwab
>
> The second argument of __kernel_clock_gettime64 points to a struct
> __kernel_timespec, with 64-bit time_t, so use the clock_gettime64 syscall
> in the fallback function for the 32-bit vdso. Similarily,
> clock_getres_fallback should use the cl
On Tue, 22 Dec 2020 20:16:00 -0500
Tony Krowiak wrote:
> Let's allow adapters, domains and control domains to be hot plugged into
> and hot unplugged from a KVM guest using a matrix mdev when:
>
> * The adapter, domain or control domain is assigned to or unassigned from
> the matrix mdev
>
>
On Mon, 2021-01-11 at 14:51 -0800, Ben Widawsky wrote:
> diff --git a/MAINTAINERS b/MAINTAINERS
[]
> @@ -4459,6 +4459,16 @@ F: fs/configfs/
> F: include/linux/configfs.h
> F: samples/configfs/
>
> +COMPUTE EXPRESS LINK (CXL)
> +M: Vishal Verma
> +M: Ira Weiny
> +M: Ben Widawsky
On 1/10/21 4:40 AM, Muchun Song wrote:
> There is a race condition between __free_huge_page()
> and dissolve_free_huge_page().
>
> CPU0: CPU1:
>
> // page_count(page) == 1
> put_page(page)
> __free_huge_page(page)
> dissolve_free_huge_page(p
On Mon, Jan 11, 2021 at 04:41:52PM -0800, Fāng-ruì Sòng wrote:
> To be fair: we cannot use
Who's "we"?
> .L-prefixed local because of the objtool limitation.
What objtool limitation? I thought clang's assembler removes .text which
objtool uses. It worked fine with GNU as so far.
> The LLVM inte
On Mon, Jan 11, 2021 at 07:30:11PM -0500, Willem de Bruijn wrote:
> From: Willem de Bruijn
>
> Use in_compat_syscall() to differentiate compat handling exactly
> where needed, including in nested function calls. Then remove
> duplicated code in callers.
IMO it's a bad idea. Use of in_compat_sys
On Mon, 11 Jan 2021 21:40:15 +0200 Mike Rapoport wrote:
> Commit 73a6e474cb37 ("mm: memmap_init: iterate over
> memblock regions rather that check each PFN") exposed several issues with
> the memory map initialization and these patches fix those issues.
>
> Initially there were crashes during co
On Tue, 12 Jan 2021 01:47:27 +0100 Andrew Lunn wrote:
> On Mon, Jan 11, 2021 at 04:36:53PM -0800, Jakub Kicinski wrote:
> > On Sun, 10 Jan 2021 21:23:02 +0200 stef...@marvell.com wrote:
> > > From: Stefan Chulski
> > >
> > > Packet Processor hardware not connected to MAC flow control unit and
>
Hi Viresh,
I may have an email hiccup, but I don't see a "[PATCH V3 1/2]" email, I
only see this "V3 2/2" email.
Please start each new version of a patch series as a stand alone email
instead of a reply to an email in a previous version of the series.
That way each patch series discussion stands
On Mon, Jan 11, 2021 at 08:57:25PM +, Alexander Lobakin wrote:
> From: Kees Cook
> Date: Mon, 11 Jan 2021 11:53:39 -0800
>
> > On Sun, Jan 10, 2021 at 11:53:50AM +, Alexander Lobakin wrote:
> >> This series hunts the problems discovered after manual enabling of
> >> ARCH_WANT_LD_ORPHAN_WA
On Mon, Jan 11, 2021 at 8:57 AM Rafael J. Wysocki wrote:
>
> On Mon, Jan 11, 2021 at 5:12 PM Thierry Reding wrote:
> >
> > On Mon, Jan 11, 2021 at 03:57:37PM +0100, Rafael J. Wysocki wrote:
> > > On Mon, Jan 11, 2021 at 2:43 PM Thierry Reding wrote:
> > > >
> > > > On Sun, Jan 10, 2021 at 08:44:
On 1/7/21 11:04 AM, Axel Rasmussen wrote:
> Overview
>
>
> This series adds a new userfaultfd registration mode,
> UFFDIO_REGISTER_MODE_MINOR. This allows userspace to intercept "minor" faults.
> By "minor" fault, I mean the following situation:
>
> Let there exist two mappings (i.e., VM
It looks like userspace can possibly induce this by providing guest
CPUID information with a "physical address width" of 64 in leaf
0x8008.
Perhaps cpuid_query_maxphyaddr() should just look at the low 5 bits of
CPUID.8008H:EAX? Better would be to return an error for
out-of-range values, bu
On Mon, Jan 11, 2021 at 11:32:02PM +0100, Bean Huo wrote:
> From: Bean Huo
>
> The memory allocated with devm_kzalloc() is freed automatically
> no need to explicitly call devm_kfree.
>
> Signed-off-by: Bean Huo
> ---
> drivers/scsi/ufs/ufshcd-crypto.c | 4 +---
> 1 file changed, 1 insertion(+
> On Jan 11, 2021, at 9:30 AM, Yonghong Song wrote:
>
>
>
> On 1/8/21 3:19 PM, Song Liu wrote:
>> Task local storage is enabled for tracing programs. Add a test for it
>> without CONFIG_BPF_LSM.
>> Signed-off-by: Song Liu
>> ---
>> .../bpf/prog_tests/test_task_local_storage.c | 34 +++
On 11/01/21 21:23, Peter Zijlstra wrote:
> On Mon, Jan 11, 2021 at 07:21:06PM +, Valentin Schneider wrote:
>> I'm less fond of the workqueue pcpu flag toggling, but it gets us what
>> we want: allow those threads to run on !active CPUs during online, but
>> move them away before !online during
> On Jan 11, 2021, at 9:44 AM, KP Singh wrote:
>
> On Mon, Jan 11, 2021 at 6:31 PM Yonghong Song wrote:
>>
>>
>>
>> On 1/8/21 3:19 PM, Song Liu wrote:
>>> Task local storage is enabled for tracing programs. Add a test for it
>>> without CONFIG_BPF_LSM.
>
> Can you also explain what the te
On Tue, 22 Dec 2020 20:15:58 -0500
Tony Krowiak wrote:
> The APCB is a field within the CRYCB that provides the AP configuration
> to a KVM guest. Let's introduce a shadow copy of the KVM guest's APCB and
> maintain it for the lifespan of the guest.
>
> Signed-off-by: Tony Krowiak
> Reviewed-by
Changes since v2 [1]
- Rebased onto v5.11-rc2
- fixes for sparse (Ben)
- Add (and modify) IOCTL number to ioctl-number.rst. (Randy)
- Change @enable to @flags with enable field. (Dan)
- Move command "name" to UAPI enum. (Dan)
- Make command array use designated initializer. (Dan)
- A
From: Vishal Verma
Add support to advertise OS capabilities, and request OS control for CXL
features using the ACPI _OSC mechanism. Advertise support for all
possible CXL features, and attempt to request control for all possible
features.
Based on a patch by Sean Kelley.
Signed-off-by: Vishal V
From: Vishal Verma
Add an acpi_cxl module to coordinate the ACPI portions of the CXL
(Compute eXpress Link) interconnect. This driver binds to ACPI0017
objects in the ACPI tree, and coordinates access to the resources
provided by the ACPI CEDT (CXL Early Discovery Table).
It also coordinates ope
This starts a new cxl directory because CXL is a new bus and it is
expected that the documentation will grow large over time. Currently
only memory devices are documented as they are all that's supported.
Signed-off-by: Ben Widawsky
---
Documentation/cxl/index.rst | 12
Doc
From: Dan Williams
The CXL.mem protocol allows a device to act as a provider of "System
RAM" and/or "Persistent Memory" that is fully coherent as if the memory
was attached to the typical CPU memory controller.
With the CXL-2.0 specification a PCI endpoint can implement a "Type-3"
device interfa
CXL devices contain an array of capabilities that describe the
interactions software can have with the device or firmware running on
the device. A CXL compliant device must implement the device status and
the mailbox capability. A CXL compliant memory device must implement the
memory device capabil
All the necessary bits are initialized in order to find and map the
register space for CXL Memory Devices. This is accomplished by using the
Register Locator DVSEC (CXL 2.0 - 8.1.9.1) to determine which PCI BAR to
use, and how much of an offset from that BAR should be added.
If the memory device r
The Command Effects Log (CEL) is specified in the CXL 2.0 specification.
The CEL is one of two types of logs, the other being vendor specific.
They are distinguished in hardware/spec via UUID. The CEL is immediately
useful for 2 things:
1. Determine which optional commands are supported by the CXL
Provide enough functionality to utilize the mailbox of a memory device.
The mailbox is used to interact with the firmware running on the memory
device.
The CXL specification defines separate capabilities for the mailbox and
the memory device. While we can confirm the mailbox is ready, in order
to
CXL devices must implement the Device Command Interface (described in
8.2.9 of the CXL 2.0 spec). While the driver already maintains a list of
commands it supports, there is still a need to be able to distinguish
between commands that the driver knows about from commands that may not
be supported b
The CXL memory device send interface will have a number of supported
commands. The raw command is not such a command. Raw commands allow
userspace to send a specified opcode to the underlying hardware and
bypass all driver checks on the command. This is useful for a couple of
usecases, mainly:
1. U
Add a straightforward IOCTL that provides a mechanism for userspace to
query the supported memory device commands. CXL commands as they appear
to userspace are described as part of the UAPI kerneldoc. The command
list returned via this IOCTL will contain the full set of commands that
the driver sup
The send command allows userspace to issue mailbox commands directly to
the hardware. The driver will verify basic properties of the command and
possible inspect the input (or output) payload to determine whether or
not the command is allowed (or might taint the kernel).
The list of allowed comman
From: Dan Williams
Create the /sys/bus/cxl hierarchy to enumerate memory devices
(per-endpoint control devices), memory address space devices (platform
address ranges with interleaving, performance, and persistence
attributes), and memory regions (active provisioned memory from an
address space d
Make notes about why we use this.
Signed-off-by: Ben Widawsky
---
Documentation/admin-guide/sysctl/kernel.rst | 1 +
Documentation/admin-guide/tainted-kernels.rst | 6 +-
include/linux/kernel.h| 3 ++-
kernel/panic.c| 1 +
4 files cha
For drivers that moderate access to the underlying hardware it is
sometimes desirable to allow userspace to bypass restrictions. Once
userspace has done this, the driver can no longer guarantee the sanctity
of either the OS or the hardware. When in this state, it is helpful for
kernel developers to
The Get Log command returns the actual log entries that are advertised
via the Get Supported Logs command (0400h). CXL device logs are selected
by UUID which is part of the CXL spec. Because the driver tries to
sanitize what is sent to hardware, there becomes a need to restrict the
types of logs wh
> On Jan 11, 2021, at 9:49 AM, Yonghong Song wrote:
>
>
>
> On 1/8/21 3:19 PM, Song Liu wrote:
>> Replace hashtab with task local storage in runqslower. This improves the
>> performance of these BPF programs. The following table summarizes average
>> runtime of these programs, in nanoseconds
Cc: Dan Williams
Cc: Vishal Verma
Cc: Ira Weiny
Signed-off-by: Ben Widawsky
---
MAINTAINERS | 10 ++
1 file changed, 10 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 6eff4f720c72..70c7ec4b2921 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4459,6 +4459,16 @@ F: fs/c
On 11/01/2021 22:09, boris.ostrov...@oracle.com wrote:
> On 1/11/21 10:29 AM, Roger Pau Monne wrote:
>>
>> +xdata.domid = kdata.dom;
>> +xdata.type = kdata.type;
>> +xdata.id = kdata.id;
>> +
>> +if (!kdata.addr && !kdata.num) {
>
> I think we should not allow only one of them to
On Tue, 22 Dec 2020 20:15:59 -0500
Tony Krowiak wrote:
> The matrix of adapters and domains configured in a guest's APCB may
> differ from the matrix of adapters and domains assigned to the matrix mdev,
> so this patch introduces a sysfs attribute to display the matrix of
> adapters and domains t
On Mon, Jan 11, 2021, Jim Mattson wrote:
> It looks like userspace can possibly induce this by providing guest
> CPUID information with a "physical address width" of 64 in leaf
> 0x8008.
It was actually the opposite, where userspace provides '0' and caused '63 - 0 +
1'
to overflow. KVM contr
On Tue, Jan 12, 2021 at 02:28:12AM +0530, Pratyush Yadav wrote:
> I meant this one. My mistake. Copied the wrong hash. Any way to fix this
> now?
Not without rebasing which I generally avoid.
signature.asc
Description: PGP signature
On Wed, 16 Dec 2020 18:22:05 +0100
Sebastian Andrzej Siewior wrote:
> PREEMPT_RT never reported "serving softirq". I took a look to see if it
> could be changed. The tracing infrastructure examinates the preemtion
"preemption"
> counter
On 1/10/21 4:40 AM, Muchun Song wrote:
> If a new hugetlb page is allocated during fallocate it will not be
> marked as active (set_page_huge_active) which will result in a later
> isolate_huge_page failure when the page migration code would like to
> move that page. Such a failure would be unexpec
Introduce a software-defined X86_FEATURE_CET, which indicates either Shadow
Stack or Indirect Branch Tracking (or both) is present. Also introduce
related cpu init/setup functions.
Signed-off-by: Yu-cheng Yu
---
arch/x86/include/asm/cpufeatures.h | 2 +-
arch/x86/include/asm/disabled-
On Mon, Jan 11, 2021 at 02:42:48PM -0800, Mike Kravetz wrote:
> On 1/7/21 11:04 AM, Axel Rasmussen wrote:
> > Overview
> >
> >
> > This series adds a new userfaultfd registration mode,
> > UFFDIO_REGISTER_MODE_MINOR. This allows userspace to intercept "minor"
> > faults.
> > By "minor" f
> Sparc has a runtime relocation I've never understood but did manage to break
> once, resulting in a long thread to fix:
>
> http://lists.landley.net/pipermail/aboriginal-landley.net/2011-December/001964.html
>
> Between that and the weird save half the stack register thing with function
> calls o
Introduce several new vhost fields for managing MQ state of the adapter
as well as initial defaults for MQ enablement.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 8
drivers/scsi/ibmvscsi/ibmvfc.h | 9 +
2 files changed, 17 insertions(+)
diff --git a/driv
From: Bean Huo
Changelog:
V1-V2:
1. Remove unused variable i in patch 1/2
2. Add Eric Biggers review tag in patch 2/2
Bean Huo (2):
scsi: hisi_sas: Remove unnecessary devm_kfree
scsi: ufs: Remove unnecessary devm_kfree
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 28 +-
From: Bean Huo
The memory allocated with devm_kzalloc() is freed automatically
no need to explicitly call devm_kfree.
Signed-off-by: Bean Huo
---
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 28 +-
1 file changed, 1 insertion(+), 27 deletions(-)
diff --git a/drivers/scsi/h
Subordinate Command Response Queues (Sub CRQ) are used in conjunction
with the primary CRQ when more than one queue is needed by the virtual
IO adapter. Recent phyp firmware versions support Sub CRQ's with ibmvfc
adapters. This feature is a prerequisite for supporting multiple
hardware backed submi
Recent updates in pHyp Firmware and VIOS releases provide new infrastructure
towards enabling Subordinate Command Response Queues (Sub-CRQs) such that each
Sub-CRQ is a channel backed by an actual hardware queue in the FC stack on the
partner VIOS. Sub-CRQs are registered with the firmware via hype
From: Bean Huo
The memory allocated with devm_kzalloc() is freed automatically
no need to explicitly call devm_kfree.
Reviewed-by: Eric Biggers
Signed-off-by: Bean Huo
---
drivers/scsi/ufs/ufshcd-crypto.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/scsi/ufs/
New NPIV_ENQUIRY_CHANNEL and NPIV_SETUP_CHANNEL management datagrams
(MADs) were defined in a previous patchset. If the client advertises a
desire to use channels and the partner VIOS is channel capable then the
client must proceed with channel enquiry to determine the maximum number
of channels th
Simple handler that calls Sub-CRQ drain routine directly.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index f3cd092478ee..51bcafad9490 100644
--- a
The event pool and CRQ used to be separate entities of the adapter host
structure and as such were allocated and freed independently of each
other. Recent work as defined a generic queue structure with an event
pool specific to each queue. As such the event pool for each queue
shouldn't be allocate
Hello:
This patch was applied to netdev/net-next.git (refs/heads/master):
On Fri, 8 Jan 2021 21:06:22 -0800 you wrote:
> The function was incorrectly named with a trailing 'r' at the end of
> prestera.
>
> Signed-off-by: Florian Fainelli
> ---
> Jakub, David,
>
> [...]
Here is the summary wi
Sub-CRQs are registred with firmware via a hypercall. Abstract that
interface into a simpler helper function.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscs
Extract the hwq id from a SCSI command and store it in the ibmvfc_event
structure to identify which Sub-CRQ to send the command down when
channels are being utilized.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 5 +
drivers/scsi/ibmvscsi/ibmvfc.h | 1 +
2 files changed
The logic for iterating over the Sub-CRQ responses is similiar to that
of the primary CRQ. Add the necessary handlers for processing those
responses.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 86 ++
1 file changed, 86 insertions(+)
diff -
[This is not something I intend to work on myself. But since I
stumbled over this issue, I figured I should at least document/report
it, in case anyone is willing to pick it up.]
Hi!
I was poking around in SLUB internals and noticed that the estimate of
how many free objects exist on a percpu par
The next patch in this series reworks the event pool allocation calls to
happen within the individual queue allocation routines instead of as
independent calls.
Move the init/free routines earlier in ibmvfc.c to prevent undefined
reference errors when calling these functions from the queue allocat
Previous patches have plumbed the necessary Sub-CRQ interface and
channel negotiation MADs to fully channelize via hardware backed queues.
Advertise client support via NPIV Login capability
IBMVFC_CAN_USE_CHANNELS when the client bits have MQ enabled via
vhost->mq_enabled, or when channels were al
Grab the queue and list lock for each Sub-CRQ and add any uncompleted
events to the host purge list.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 16
1 file changed, 16 insertions(+)
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvf
Add a helper routine for initializing a Cancel MAD. This will be useful
for a channelized client that needs to send Cancel commands down every
channel commands were sent for a particular LUN.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 68 --
On 12/14/20 6:38 PM, Daniel Lezcano wrote:
The code was reorganized in 2012 with the commit 0c01ebbfd3caf1.
The main change is a loop on the trip points array and a unconditional
call to the throttle() ops of the governors for each of them even if
the trip temperature is not reached yet.
Wit
Turn on MQ by default and set sane values for the upper limit on hw
queues for the scsi host, and number of hw scsi channels to request from
the partner VIOS.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git
Add the various module parameter toggles for adjusting the MQ
characteristics at boot/load time as well as a device attribute for
changing the client scsi channel request amount.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 75 ++
1 file chan
In general the client needs to send Cancel MADs and task management
commands down the same channel as the command(s) intended to cancel or
abort. The client assigns cancel keys per LUN and thus must send a
Cancel down each channel commands were submitted for that LUN. Further,
the client then must
If the ibmvfc client adapter requests channels it must submit a number
of Sub-CRQ handles matching the number of channels being requested. The
VIOS in its response will overwrite the actual number of channel
resources allocated which may be less than what was requested. The
client then must store t
Each Sub-CRQ has its own interrupt. A hypercall is required to toggle
the IRQ state. Provide the necessary mechanism via a helper function.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 20
1 file changed, 20 insertions(+)
diff --git a/drivers/scsi/ibmv
Create an irq mapping for the hw_irq number provided from phyp firmware.
Request an irq assigned our Sub-CRQ interrupt handler. Unmap these irqs
at Sub-CRQ teardown.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 25 +
1 file changed, 25 insertions(+)
On Mon, 11 Jan 2021 11:55:53 -0800 Atish Patra wrote:
> There is no usrio config defined for default gem config leading to
> a kernel panic devices that don't define a data. This issue can be
> reprdouced with microchip polar fire soc where compatible string
> is defined as "cdns,macb".
>
> Fixes:
When the client has negotiated the use of channels all vfcFrames are
required to go down a Sub-CRQ channel or it is a protocoal violation. If
the adapter state is channelized submit vfcFrames to the appropriate
Sub-CRQ via the h_send_sub_crq() helper.
Signed-off-by: Tyrel Datwyler
---
drivers/sc
Allocate a set of Sub-CRQs in advance. During channel setup the client
and VIOS negotiate the number of queues the VIOS supports and the number
that the client desires to request. Its possible that the final channel
resources allocated is less than requested, but the client is still
responsible for
With the upcoming addition of Sub-CRQs the event pool size may vary
per-queue.
Add a size parameter to ibmvfc_init_event_pool such that different size
event pools can be requested by ibmvfc_alloc_queue.
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvfc.c | 25 --
i386defconfig
powerpc allyesconfig
powerpc allmodconfig
powerpc allnoconfig
x86_64 randconfig-a004-20210111
x86_64 randconfig-a006-20210111
x86_64
On Mon, 11 Jan 2021 13:58:29 -0800 Praveen Chaudhary wrote:
> For IPv4, default route is learned via DHCPv4 and user is allowed to change
> metric using config etc/network/interfaces. But for IPv6, default route can
> be learned via RA, for which, currently a fixed metric value 1024 is used.
>
> I
On 12/14/20 6:38 PM, Daniel Lezcano wrote:
The functions thermal_zone_device_rebind_exception and
thermal_zone_device_unbind_exception are not used from anywhere.
Remove that code.
Signed-off-by: Daniel Lezcano
Reviewed-by: Thara Gopinath
---
drivers/thermal/thermal_core.c | 37 -
> On Jan 11, 2021, at 2:14 AM, KP Singh wrote:
>
> On Sat, Jan 9, 2021 at 12:35 AM Song Liu wrote:
>>
>> To access per-task data, BPF program typically creates a hash table with
>> pid as the key. This is not ideal because:
>> 1. The use need to estimate requires size of the hash table, with
On 12/14/20 6:38 PM, Daniel Lezcano wrote:
The THERMAL_TRIPS_NONE is equal to -1, it is pointless to do a
conversion in this function.
It is pointless because you have removed force_passive and
will be removing THERMAL_TRIPS_NONE in the following patches.
Maybe that should be mentioned in th
On Mon, Jan 11, 2021 at 04:36:53PM -0800, Jakub Kicinski wrote:
> On Sun, 10 Jan 2021 21:23:02 +0200 stef...@marvell.com wrote:
> > From: Stefan Chulski
> >
> > Packet Processor hardware not connected to MAC flow control unit and
> > cannot support TX flow control.
> > This patch disable flow con
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