From: Stephen Hemminger <stephen@networkplumber.org>
To: Mike Ximing Chen <mike.ximing.chen@intel.com>
Cc: linux-kernel@vger.kernel.org, arnd@arndb.de,
gregkh@linuxfoundation.org, dan.j.williams@intel.com,
pierre-louis.bossart@linux.intel.com, netdev@vger.kernel.org,
davem@davemloft.net, kuba@kernel.org
Subject: Re: [RFC PATCH v12 17/17] dlb: add basic sysfs interfaces
Date: Tue, 21 Dec 2021 15:34:58 -0800 [thread overview]
Message-ID: <20211221153458.51710479@hermes.local> (raw)
In-Reply-To: <20211221065047.290182-18-mike.ximing.chen@intel.com>
On Tue, 21 Dec 2021 00:50:47 -0600
Mike Ximing Chen <mike.ximing.chen@intel.com> wrote:
> The dlb sysfs interfaces include files for reading the total and
> available device resources, and reading the device ID and version. The
> interfaces are used for device level configurations and resource
> inquiries.
>
> Signed-off-by: Mike Ximing Chen <mike.ximing.chen@intel.com>
> ---
> Documentation/ABI/testing/sysfs-driver-dlb | 116 ++++++++++++
> drivers/misc/dlb/dlb_args.h | 34 ++++
> drivers/misc/dlb/dlb_main.c | 5 +
> drivers/misc/dlb/dlb_main.h | 3 +
> drivers/misc/dlb/dlb_pf_ops.c | 195 +++++++++++++++++++++
> drivers/misc/dlb/dlb_resource.c | 50 ++++++
> 6 files changed, 403 insertions(+)
> create mode 100644 Documentation/ABI/testing/sysfs-driver-dlb
>
> diff --git a/Documentation/ABI/testing/sysfs-driver-dlb b/Documentation/ABI/testing/sysfs-driver-dlb
> new file mode 100644
> index 000000000000..bf09ef6f8a3a
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-driver-dlb
> @@ -0,0 +1,116 @@
> +What: /sys/bus/pci/devices/.../total_resources/num_atomic_inflights
> +What: /sys/bus/pci/devices/.../total_resources/num_dir_credits
> +What: /sys/bus/pci/devices/.../total_resources/num_dir_ports
> +What: /sys/bus/pci/devices/.../total_resources/num_hist_list_entries
> +What: /sys/bus/pci/devices/.../total_resources/num_ldb_credits
> +What: /sys/bus/pci/devices/.../total_resources/num_ldb_ports
> +What: /sys/bus/pci/devices/.../total_resources/num_cos0_ldb_ports
> +What: /sys/bus/pci/devices/.../total_resources/num_cos1_ldb_ports
> +What: /sys/bus/pci/devices/.../total_resources/num_cos2_ldb_ports
> +What: /sys/bus/pci/devices/.../total_resources/num_cos3_ldb_ports
> +What: /sys/bus/pci/devices/.../total_resources/num_ldb_queues
> +What: /sys/bus/pci/devices/.../total_resources/num_sched_domains
> +Date: Oct 15, 2021
> +KernelVersion: 5.15
> +Contact: mike.ximing.chen@intel.com
> +Description:
> + The total_resources subdirectory contains read-only files that
> + indicate the total number of resources in the device.
> +
> + num_atomic_inflights: Total number of atomic inflights in the
> + device. Atomic inflights refers to the
> + on-device storage used by the atomic
> + scheduler.
> +
> + num_dir_credits: Total number of directed credits in the
> + device.
> +
> + num_dir_ports: Total number of directed ports (and
> + queues) in the device.
> +
> + num_hist_list_entries: Total number of history list entries in
> + the device.
> +
> + num_ldb_credits: Total number of load-balanced credits in
> + the device.
> +
> + num_ldb_ports: Total number of load-balanced ports in
> + the device.
> +
> + num_cos<M>_ldb_ports: Total number of load-balanced ports
> + belonging to class-of-service M in the
> + device.
> +
> + num_ldb_queues: Total number of load-balanced queues in
> + the device.
> +
> + num_sched_domains: Total number of scheduling domains in the
> + device.
> +
Sysfs is only slightly better than /proc as an API.
If it is just for testing than debugfs might be better.
Could this be done with a real netlink interface?
Maybe as part of devlink?
next prev parent reply other threads:[~2021-12-21 23:35 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-21 6:50 [RFC PATCH v12 00/17] dlb: introduce DLB device driver Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 01/17] dlb: add skeleton for DLB driver Mike Ximing Chen
2021-12-21 7:00 ` Joe Perches
2021-12-21 23:22 ` Chen, Mike Ximing
2021-12-22 2:02 ` Joe Perches
2021-12-21 7:12 ` Greg KH
2021-12-21 8:57 ` Greg KH
2021-12-21 14:25 ` Chen, Mike Ximing
2021-12-21 14:42 ` Chen, Mike Ximing
2021-12-21 15:02 ` Greg KH
2021-12-21 14:05 ` Chen, Mike Ximing
2021-12-21 9:53 ` Andrew Lunn
2021-12-21 20:56 ` Chen, Mike Ximing
2021-12-21 21:39 ` Andrew Lunn
2021-12-21 23:05 ` Chen, Mike Ximing
2021-12-22 21:26 ` Andrew Lunn
2021-12-23 5:15 ` Chen, Mike Ximing
2021-12-23 10:22 ` Andrew Lunn
2021-12-27 0:40 ` Chen, Mike Ximing
[not found] ` <20211222194746.3480dea8@hermes.local>
2021-12-23 5:39 ` Dan Williams
2021-12-21 6:50 ` [RFC PATCH v12 02/17] dlb: initialize DLB device Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 03/17] dlb: add resource and device initialization Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 04/17] dlb: add configfs interface and scheduling domain directory Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 05/17] dlb: add scheduling domain configuration Mike Ximing Chen
2021-12-21 12:18 ` kernel test robot
2021-12-21 6:50 ` [RFC PATCH v12 06/17] dlb: add domain software reset Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 07/17] dlb: add low-level register reset operations Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 08/17] dlb: add runtime power-management support Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 09/17] dlb: add queue create, reset, get-depth configfs interface Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 10/17] dlb: add register operations for queue management Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 11/17] dlb: add configfs interface to configure ports Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 12/17] dlb: add register operations for port management Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 13/17] dlb: add port mmap support Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 14/17] dlb: add start domain configfs attribute Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 15/17] dlb: add queue map, unmap, and pending unmap Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 16/17] dlb: add static queue map register operations Mike Ximing Chen
2021-12-21 6:50 ` [RFC PATCH v12 17/17] dlb: add basic sysfs interfaces Mike Ximing Chen
2021-12-21 7:20 ` Joe Perches
2021-12-21 23:18 ` Chen, Mike Ximing
2021-12-21 8:56 ` Greg KH
2021-12-21 14:07 ` Chen, Mike Ximing
2021-12-21 23:34 ` Stephen Hemminger [this message]
2021-12-22 4:21 ` Chen, Mike Ximing
2021-12-21 7:09 ` [RFC PATCH v12 00/17] dlb: introduce DLB device driver Greg KH
2021-12-21 14:03 ` Chen, Mike Ximing
2021-12-21 14:31 ` Greg KH
2021-12-21 18:44 ` Dan Williams
2021-12-21 19:57 ` Andrew Lunn
2021-12-22 8:01 ` Christoph Hellwig
2021-12-21 9:40 ` Andrew Lunn
2021-12-22 4:37 ` Chen, Mike Ximing
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