Added support to read the vendor-specific PCI capability to identify the
type of device being emulated.
Reviewed-by: Dan Carpenter
Acked-by: Jason Wang
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa.h | 20 +
drivers/vdpa/octeon_ep/octep_vdpa_hw.c | 36
Added macro definition for VIRTIO_PCI_CAP_VENDOR_CFG to identify the PCI
vendor data type in the virtio_pci_cap structure. Defined a new struct
virtio_pci_vndr_data for the vendor data capability header as per the
specification.
Acked-by: Jason Wang
Signed-off-by: Shijith Thotton
---
include
: Jason Wang
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa_main.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/vdpa/octeon_ep/octep_vdpa_main.c
b/drivers/vdpa/octeon_ep/octep_vdpa_main.c
index e9c3e57b321f..4d56be64ae56 100644
--- a/drivers/vdpa
Carpenter
Acked-by: Jason Wang
Signed-off-by: Shijith Thotton
---
v1:
-
https://lore.kernel.org/virtualization/20241120070508.789508-1-sthot...@marvell.com
Changes in v2:
- Handle reset getting called twice.
- Use devm_kcalloc to allocate irq array.
- IRQ is never zero. Adjusted code accordingly
Added support to read the vendor-specific PCI capability to identify the
type of device being emulated.
Reviewed-by: Dan Carpenter
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa.h | 20 +
drivers/vdpa/octeon_ep/octep_vdpa_hw.c | 36
Added macro definition for VIRTIO_PCI_CAP_VENDOR_CFG to identify the PCI
vendor data type in the virtio_pci_cap structure. Defined a new struct
virtio_pci_vndr_data for the vendor data capability header as per the
specification.
Signed-off-by: Shijith Thotton
---
include/uapi/linux/virtio_pci.h
: Jason Wang
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa_main.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/vdpa/octeon_ep/octep_vdpa_main.c
b/drivers/vdpa/octeon_ep/octep_vdpa_main.c
index e9c3e57b321f..4d56be64ae56 100644
--- a/drivers/vdpa
Carpenter
Acked-by: Jason Wang
Signed-off-by: Shijith Thotton
---
v1:
-
https://lore.kernel.org/virtualization/20241120070508.789508-1-sthot...@marvell.com
Changes in v2:
- Handle reset getting called twice.
- Use devm_kcalloc to allocate irq array.
- IRQ is never zero. Adjusted code accordingly
>> >>> Added support to read the vendor-specific PCI capability to identify the
>> >>> type of device being emulated.
>> >>>
>> >>> Reviewed-by: Dan Carpenter
>> >>> Signed-off-by: Shijith Thotton
>> >>>
>>>
>>> Added support to read the vendor-specific PCI capability to identify the
>>> type of device being emulated.
>>>
>>> Reviewed-by: Dan Carpenter
>>> Signed-off-by: Shijith Thotton
>>> ---
>>> drivers/vdpa/oct
>> Added macro definition for VIRTIO_PCI_CAP_VENDOR_CFG to identify the
>PCI
>> vendor data type in the virtio_pci_cap structure. Defined a new struct
>> virtio_pci_vndr_data for the vendor data capability header as per the
>> specification.
>>
>> Signed-off-
>>
>> Added support to read the vendor-specific PCI capability to identify the
>> type of device being emulated.
>>
>> Reviewed-by: Dan Carpenter
>> Signed-off-by: Shijith Thotton
>> ---
>> drivers/vdpa/octeon_ep/octep_vdpa.h | 20 +
Added support to read the vendor-specific PCI capability to identify the
type of device being emulated.
Reviewed-by: Dan Carpenter
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa.h | 20 ++
drivers/vdpa/octeon_ep/octep_vdpa_hw.c | 33
: Jason Wang
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa_main.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/vdpa/octeon_ep/octep_vdpa_main.c
b/drivers/vdpa/octeon_ep/octep_vdpa_main.c
index e9c3e57b321f..4d56be64ae56 100644
--- a/drivers/vdpa
Added macro definition for VIRTIO_PCI_CAP_VENDOR_CFG to identify the PCI
vendor data type in the virtio_pci_cap structure. Defined a new struct
virtio_pci_vndr_data for the vendor data capability header as per the
specification.
Signed-off-by: Shijith Thotton
---
include/uapi/linux/virtio_pci.h
Carpenter
Signed-off-by: Shijith Thotton
---
v1:
-
https://lore.kernel.org/virtualization/20241120070508.789508-1-sthot...@marvell.com
Changes in v2:
- Handle reset getting called twice.
- Use devm_kcalloc to allocate irq array.
- IRQ is never zero. Adjusted code accordingly.
Changes in v3
oss multiple cores, improving parallelism and
>> > performance.
>> >
>> > Signed-off-by: Shijith Thotton
>> > ---
>> > v1:
>> > - https://urldefense.proofpoint.com/v2/url?u=https-
>3A__lore.kernel.org_virtualization_20241120070508.789508-2D1-
>2Ds
r processing data.
>>
>>I'm not sure I will get here but the recent kernel depends heavily on
>>the tx interrupt for skb post processing as well.
>>
>
>Currently, the device does not support TX interrupts.
>This behavior may change in the future.
>
.
>
>I'm not sure I will get here but the recent kernel depends heavily on
>the tx interrupt for skb post processing as well.
>
Currently, the device does not support TX interrupts.
This behavior may change in the future.
>>
>> Signed-off-by: Shijith Thotton
>
>> Added support to read the vendor-specific PCI capability to identify the
>> type of device being emulated.
>>
>> Signed-off-by: Shijith Thotton
>> ---
>> drivers/vdpa/octeon_ep/octep_vdpa.h | 24 +
>> dri
Added support to read the vendor-specific PCI capability to identify the
type of device being emulated.
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa.h | 24 +
drivers/vdpa/octeon_ep/octep_vdpa_hw.c | 34 +++-
drivers/vdpa
From: Satha Rao
The first interrupt of the device is used to notify the host about
device configuration changes, such as link status updates. The ISR
configuration area is updated to indicate a config change event when
triggered.
Signed-off-by: Satha Rao
Signed-off-by: Shijith Thotton
Introduced an interrupt handler for the virtio crypto device, as its
queue usage differs from that of network devices. While virtio network
device receives packets only on even-indexed queues, virtio crypto
device utilize all available queues for processing data.
Signed-off-by: Shijith Thotton
: Shijith Thotton
---
v1:
-
https://lore.kernel.org/virtualization/20241120070508.789508-1-sthot...@marvell.com
Changes in v2:
- Handle reset getting called twice.
- Use devm_kcalloc to allocate irq array.
- IRQ is never zero. Adjusted code accordingly.
drivers/vdpa/octeon_ep/octep_vdpa.h | 10
>> @@ -63,44 +80,53 @@ static irqreturn_t octep_vdpa_intr_handler(int irq,
>void *data)
>> static void octep_free_irqs(struct octep_hw *oct_hw)
>> {
>> struct pci_dev *pdev = oct_hw->pdev;
>> +int irq;
>> +
>> +for (irq = 0; irq < oct_hw->nb_irqs && oct_hw->irqs; irq++) {
>> +
>>
>> The first interrupt of the device is used to notify the host about
>> device configuration changes, such as link status updates. The ISR
>> configuration area is updated to indicate a config change event when
>> triggered.
>>
>> Signed-off-by: Sa
Introduced an interrupt handler for the virtio crypto device, as its
queue usage differs from that of network devices. While virtio network
device receives packets only on even-indexed queues, virtio crypto
device utilize all available queues for processing data.
Signed-off-by: Shijith Thotton
Added support to read the vendor-specific PCI capability to identify the
type of device being emulated.
Signed-off-by: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa.h | 24 +
drivers/vdpa/octeon_ep/octep_vdpa_hw.c | 34 +++-
drivers/vdpa
From: Satha Rao
The first interrupt of the device is used to notify the host about
device configuration changes, such as link status updates. The ISR
configuration area is updated to indicate a config change event when
triggered.
Signed-off-by: Satha Rao
Signed-off-by: Shijith Thotton
: Shijith Thotton
---
drivers/vdpa/octeon_ep/octep_vdpa.h | 10 +--
drivers/vdpa/octeon_ep/octep_vdpa_hw.c | 2 -
drivers/vdpa/octeon_ep/octep_vdpa_main.c | 88
3 files changed, 63 insertions(+), 37 deletions(-)
diff --git a/drivers/vdpa/octeon_ep/octep_vdpa.h
b
Commit-ID: c09cb1293523dd786ae54a12fd88001542cba2f6
Gitweb: https://git.kernel.org/tip/c09cb1293523dd786ae54a12fd88001542cba2f6
Author: Shijith Thotton
AuthorDate: Fri, 5 Jul 2019 07:56:20 +
Committer: Thomas Gleixner
CommitDate: Sat, 6 Jul 2019 10:40:19 +0200
genirq: Update irq
this. With this change, we can see stats of
the perf NMI interrupts on arm64.
As NMI handlers can't update tot_count in irq descriptor, kstat_irqs()
has been updated not to return tot_count for NMI.
Fixes: 2dcf1fbcad35 ("genirq: Provide NMI handlers")
Signed-off-by: Shijith Thot
On 7/4/19 9:19 AM, Thomas Gleixner wrote:
> On Thu, 4 Jul 2019, Shijith Thotton wrote:
>> On 7/4/19 12:13 AM, Julien Thierry wrote:
>>> Looking at handle_percpu_irq(), I think this might be acceptable. But
>>> does it make sense to only have kstats for percpu NMIs?
&
Hi Julien,
On 7/4/19 12:13 AM, Julien Thierry wrote:
> On 04/07/2019 05:22, Shijith Thotton wrote:
>> The NMI handlers handle_percpu_devid_fasteoi_nmi() and
>> handle_fasteoi_nmi() added by commit 2dcf1fbcad35 ("genirq: Provide NMI
>> handlers") do not update th
this. With this change, we can see stats of
the perf NMI interrupts on arm64.
Fixes: 2dcf1fbcad35 ("genirq: Provide NMI handlers")
Signed-off-by: Shijith Thotton
---
kernel/irq/chip.c | 4
1 file changed, 4 insertions(+)
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.
: 262 nsec/call
clock-getres-tai:vdso: 258 nsec/call
clock-gettime-boottime: syscall: 353 nsec/call
clock-gettime-boottime:libc: 365 nsec/call
clock-gettime-boottime:vdso: 362 nsec/call
clock-getres-boottime: syscall: 260 nsec/call
clock-getres-boottime:libc: 267 nsec/call
clock-getres-boottime:vdso: 259 nsec/call
clock-gettime-realtime: syscall: 344 nsec/call
clock-gettime-realtime:libc: 73 nsec/call
clock-gettime-realtime:vdso: 72 nsec/call
clock-getres-realtime: syscall: 255 nsec/call
clock-getres-realtime:libc: 7 nsec/call
clock-getres-realtime:vdso: 4 nsec/call
clock-gettime-realtime-coarse: syscall: 296 nsec/call
clock-gettime-realtime-coarse:libc: 35 nsec/call
clock-gettime-realtime-coarse:vdso: 33 nsec/call
clock-getres-realtime-coarse: syscall: 258 nsec/call
clock-getres-realtime-coarse:libc: 6 nsec/call
clock-getres-realtime-coarse:vdso: 4 nsec/call
getcpu: syscall: 237 nsec/call
getcpu:libc: 242 nsec/call
getcpu:vdso: not tested
Note: vDSO version of getcpu not found
gettimeofday: syscall: 378 nsec/call
gettimeofday:libc: 73 nsec/call
gettimeofday:vdso: 70 nsec/call
Observed good improvement for some APIs with the patch.
Tested-by: Shijith Thotton
Thanks,
Shijith
On 01/24/2019 10:07 PM, Catalin Marinas wrote:
> Hi Shijith,
>
> On Thu, Jan 24, 2019 at 07:00:42AM +, Shijith Thotton wrote:
>> On 01/23/2019 11:45 PM, Catalin Marinas wrote:
>>> diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c
>>> index 30695a8681
Hi Catalin,
On 01/23/2019 11:45 PM, Catalin Marinas wrote:
> On Tue, Jan 22, 2019 at 05:44:02AM +, Will Deacon wrote:
>> On Mon, Jan 21, 2019 at 02:21:28PM +, Catalin Marinas wrote:
>>> arm64: Do not issue IPIs for user executable ptes
>>>
>>> From: Catalin Marinas
>>>
>>> Commit 3b8c9f1c
On 07-Dec-18 3:09 AM, Steve Sistare wrote:
>
> When a CPU has no more CFS tasks to run, and idle_balance() fails to
> find a task, then attempt to steal a task from an overloaded CPU in the
> same LLC. Maintain and use a bitmap of overloaded CPUs to efficiently
> identify candidates. To minimize
On 22-Oct-18 8:40 PM, Steve Sistare wrote:
>
> When a CPU has no more CFS tasks to run, and idle_balance() fails to
> find a task, then attempt to steal a task from an overloaded CPU in the
> same LLC. Maintain and use a bitmap of overloaded CPUs to efficiently
> identify candidates. To minimize
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