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Daniel Zahka says:
====================
psp: track stats from core and provide a driver stats api
This series introduces stats counters for psp. Device key rotations,
and so called 'stale-events' are common to all drivers and are tracked
by the core.
A driver facing api is provided for reporting stats required by the
"Implementation Requirements" section of the PSP Architecture
Specification. Drivers must implement these stats.
Lastly, implementations of the driver stats api for mlx5 and netdevsim
are included.
Here is the output of running the psp selftest suite and then
printing out stats with the ynl cli on system with a psp-capable CX7:
$ ./ksft-psp-stats/drivers/net/psp.py
TAP version 13
1..28
ok 1 psp.test_case # SKIP Test requires IPv4 connectivity
ok 2 psp.data_basic_send_v0_ip6
ok 3 psp.test_case # SKIP Test requires IPv4 connectivity
ok 4 psp.data_basic_send_v1_ip6
ok 5 psp.test_case # SKIP Test requires IPv4 connectivity
ok 6 psp.data_basic_send_v2_ip6 # SKIP ('PSP version not supported', 'hdr0-aes-gmac-128')
ok 7 psp.test_case # SKIP Test requires IPv4 connectivity
ok 8 psp.data_basic_send_v3_ip6 # SKIP ('PSP version not supported', 'hdr0-aes-gmac-256')
ok 9 psp.test_case # SKIP Test requires IPv4 connectivity
ok 10 psp.data_mss_adjust_ip6
ok 11 psp.dev_list_devices
ok 12 psp.dev_get_device
ok 13 psp.dev_get_device_bad
ok 14 psp.dev_rotate
ok 15 psp.dev_rotate_spi
ok 16 psp.assoc_basic
ok 17 psp.assoc_bad_dev
ok 18 psp.assoc_sk_only_conn
ok 19 psp.assoc_sk_only_mismatch
ok 20 psp.assoc_sk_only_mismatch_tx
ok 21 psp.assoc_sk_only_unconn
ok 22 psp.assoc_version_mismatch
ok 23 psp.assoc_twice
ok 24 psp.data_send_bad_key
ok 25 psp.data_send_disconnect
ok 26 psp.data_stale_key
ok 27 psp.removal_device_rx # XFAIL Test only works on netdevsim
ok 28 psp.removal_device_bi # XFAIL Test only works on netdevsim
# Totals: pass:19 fail:0 xfail:2 xpass:0 skip:7 error:0
#
# Responder logs (0):
# STDERR:
# Set PSP enable on device 1 to 0x3
# Set PSP enable on device 1 to 0x0
$ ynl --family psp --dump get-stats
[{'dev-id': 1,
'key-rotations': 5,
'rx-auth-fail': 21,
'rx-bad': 0,
'rx-bytes': 11844,
'rx-error': 0,
'rx-packets': 94,
'stale-events': 6,
'tx-bytes': 1128456,
'tx-error': 0,
'tx-packets': 780}]
====================
Link: https://patch.msgid.link/20251106002608.1578518-1-daniel.zahka@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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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 reStructuredText 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.