From: Rahul Rameshbabu <rrameshbabu@nvidia•com>
To: Jakub Kicinski <kuba@kernel•org>
Cc: ahmed.zaki@intel•com, aleksander.lobakin@intel•com,
alexandre.torgue@foss•st.com, andrew@lunn•ch, corbet@lwn•net,
davem@davemloft•net, dtatulea@nvidia•com, edumazet@google•com,
gal@nvidia•com, hkallweit1@gmail•com, jacob.e.keller@intel•com,
jiri@resnulli•us, joabreu@synopsys•com, justinstitt@google•com,
kory.maincent@bootlin•com, leon@kernel•org,
linux-doc@vger•kernel.org, linux-kernel@vger•kernel.org,
liuhangbin@gmail•com, maxime.chevallier@bootlin•com,
netdev@vger•kernel.org, pabeni@redhat•com,
paul.greenwalt@intel•com, przemyslaw.kitszel@intel•com,
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saeed@kernel•org, tariqt@nvidia•com, vadim.fedorenko@linux•dev,
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Subject: Re: [PATCH RFC v2 1/6] ethtool: add interface to read Tx hardware timestamping statistics
Date: Thu, 14 Mar 2024 10:01:49 -0700 [thread overview]
Message-ID: <87v85ovj4d.fsf@nvidia.com> (raw)
In-Reply-To: <20240312165346.14ec1941@kernel.org>
On Tue, 12 Mar, 2024 16:53:46 -0700 Jakub Kicinski <kuba@kernel•org> wrote:
> On Sat, 9 Mar 2024 00:44:35 -0800 Rahul Rameshbabu wrote:
>> Multiple network devices that support hardware timestamping appear to have
>> common behavior with regards to timestamp handling. Implement common Tx
>> hardware timestamping statistics in a tx_stats struct_group. Common Rx
>> hardware timestamping statistics can subsequently be implemented in a
>> rx_stats struct_group for ethtool_ts_stats.
>
>> Documentation/netlink/specs/ethtool.yaml | 20 +++++++++
>> include/linux/ethtool.h | 21 ++++++++++
>> include/uapi/linux/ethtool_netlink.h | 15 +++++++
>> net/ethtool/tsinfo.c | 52 +++++++++++++++++++++++-
>> 4 files changed, 107 insertions(+), 1 deletion(-)
>
> Feels like we should mention the new stats somehow in
> Documentation/networking/ethtool-netlink.rst
>
>> diff --git a/Documentation/netlink/specs/ethtool.yaml b/Documentation/netlink/specs/ethtool.yaml
>> index 197208f419dc..f99b003c78c0 100644
>> --- a/Documentation/netlink/specs/ethtool.yaml
>> +++ b/Documentation/netlink/specs/ethtool.yaml
>> @@ -559,6 +559,21 @@ attribute-sets:
>> -
>> name: tx-lpi-timer
>> type: u32
>> + -
>> + name: ts-stat
>> + attributes:
>> + -
>> + name: pad
>> + type: pad
>
> You can remove the pad entry, and...
>
You need the pad to match with ETHTOOL_A_TS_STAT_PAD (which similar to
other ethtool stats currently defined). Otherwise, you run into the
following.... mm-stat and fec-stat are good examples.
[root@binary-eater-vm-01 linux-ethtool-ts]# ./tools/net/ynl/ethtool.py --show-time-stamping mlx5_1
Traceback (most recent call last):
File "/root/linux-ethtool-ts/tools/net/ynl/lib/ynl.py", line 598, in _decode
attr_spec = attr_space.attrs_by_val[attr.type]
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
KeyError: 4
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/linux-ethtool-ts/./tools/net/ynl/ethtool.py", line 437, in <module>
main()
File "/root/linux-ethtool-ts/./tools/net/ynl/ethtool.py", line 333, in main
tsinfo = dumpit(ynl, args, 'tsinfo-get', req)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/linux-ethtool-ts/./tools/net/ynl/ethtool.py", line 91, in dumpit
reply = ynl.dump(op_name, { 'header': {} } | extra)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/linux-ethtool-ts/tools/net/ynl/lib/ynl.py", line 873, in dump
return self._op(method, vals, [], dump=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/linux-ethtool-ts/tools/net/ynl/lib/ynl.py", line 858, in _op
rsp_msg = self._decode(decoded.raw_attrs, op.attr_set.name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/linux-ethtool-ts/tools/net/ynl/lib/ynl.py", line 607, in _decode
subdict = self._decode(NlAttrs(attr.raw), attr_spec['nested-attributes'], search_attrs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/linux-ethtool-ts/tools/net/ynl/lib/ynl.py", line 601, in _decode
raise Exception(f"Space '{space}' has no attribute with value '{attr.type}'")
Exception: Space 'ts-stat' has no attribute with value '4'
>> +enum {
>> + ETHTOOL_A_TS_STAT_UNSPEC,
>> + ETHTOOL_A_TS_STAT_PAD,
>> +
>> + ETHTOOL_A_TS_STAT_TX_PKT, /* array, u64 */
>> + ETHTOOL_A_TS_STAT_TX_LOST, /* array, u64 */
>> + ETHTOOL_A_TS_STAT_TX_ERR, /* array, u64 */
>
> I don't think these are arrays.
>
>> +
>> + /* add new constants above here */
>> + __ETHTOOL_A_TS_STAT_CNT,
>> + ETHTOOL_A_TS_STAT_MAX = (__ETHTOOL_A_TS_STAT_CNT - 1)
>> +
>> +};
--
Thanks,
Rahul Rameshbabu
next prev parent reply other threads:[~2024-03-14 17:06 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-23 19:24 [PATCH RFC net-next v1 0/6] ethtool HW timestamping statistics Rahul Rameshbabu
2024-02-23 19:24 ` [PATCH RFC net-next v1 1/6] ethtool: add interface to read Tx hardware " Rahul Rameshbabu
2024-02-23 21:07 ` Jacob Keller
2024-02-23 22:21 ` Rahul Rameshbabu
2024-02-23 22:48 ` Jacob Keller
2024-02-23 23:43 ` Rahul Rameshbabu
2024-02-26 19:54 ` Jacob Keller
2024-03-07 18:47 ` Rahul Rameshbabu
2024-03-08 3:29 ` Jacob Keller
2024-03-08 5:09 ` Rahul Rameshbabu
2024-03-08 22:28 ` Jacob Keller
2024-03-08 22:30 ` Rahul Rameshbabu
2024-02-26 8:59 ` Köry Maincent
2024-02-26 10:09 ` Köry Maincent
2024-02-29 2:05 ` Jakub Kicinski
2024-02-29 22:20 ` Rahul Rameshbabu
2024-02-23 19:24 ` [PATCH RFC net-next v1 2/6] net/mlx5e: Introduce lost_cqe statistic counter for PTP Tx port timestamping CQ Rahul Rameshbabu
2024-02-23 19:24 ` [PATCH RFC net-next v1 3/6] net/mlx5e: Introduce timestamps statistic counter for Tx DMA layer Rahul Rameshbabu
2024-02-23 19:24 ` [PATCH RFC net-next v1 4/6] net/mlx5e: Implement ethtool hardware timestamping statistics Rahul Rameshbabu
2024-02-26 9:26 ` Köry Maincent
2024-02-23 19:24 ` [PATCH RFC net-next v1 5/6] tools: ynl: ethtool.py: Make tool invokable from any CWD Rahul Rameshbabu
2024-02-23 21:08 ` Jacob Keller
2024-02-23 22:39 ` Rahul Rameshbabu
2024-02-29 2:08 ` Jakub Kicinski
2024-02-23 19:24 ` [PATCH RFC net-next v1 6/6] tools: ynl: ethtool.py: Add ts ethtool statistics group Rahul Rameshbabu
2024-02-23 21:00 ` [PATCH RFC net-next v1 0/6] ethtool HW timestamping statistics Jacob Keller
2024-02-23 21:12 ` Jacob Keller
2024-02-23 22:47 ` Rahul Rameshbabu
2024-03-09 8:44 ` [PATCH RFC v2 " Rahul Rameshbabu
2024-03-09 8:44 ` [PATCH RFC v2 1/6] ethtool: add interface to read Tx hardware " Rahul Rameshbabu
2024-03-12 23:53 ` Jakub Kicinski
2024-03-14 0:26 ` Rahul Rameshbabu
2024-03-14 0:41 ` Jakub Kicinski
2024-03-14 0:50 ` Rahul Rameshbabu
2024-03-14 1:40 ` Jakub Kicinski
2024-03-14 4:19 ` Rahul Rameshbabu
2024-03-14 17:50 ` Keller, Jacob E
2024-03-14 18:48 ` Rahul Rameshbabu
2024-03-14 17:01 ` Rahul Rameshbabu [this message]
2024-03-14 17:59 ` Jakub Kicinski
2024-03-14 18:43 ` Rahul Rameshbabu
2024-03-14 19:06 ` Jakub Kicinski
2024-03-14 20:16 ` Rahul Rameshbabu
2024-03-09 8:44 ` [PATCH RFC v2 2/6] net/mlx5e: Introduce lost_cqe statistic counter for PTP Tx port timestamping CQ Rahul Rameshbabu
2024-03-09 8:44 ` [PATCH RFC v2 3/6] net/mlx5e: Introduce timestamps statistic counter for Tx DMA layer Rahul Rameshbabu
2024-03-09 8:44 ` [PATCH RFC v2 4/6] net/mlx5e: Implement ethtool hardware timestamping statistics Rahul Rameshbabu
2024-03-09 8:44 ` [PATCH RFC v2 5/6] tools: ynl: ethtool.py: Make tool invokable from any CWD Rahul Rameshbabu
2024-03-11 12:43 ` Köry Maincent
2024-03-09 8:44 ` [PATCH RFC v2 6/6] tools: ynl: ethtool.py: Output timestamping statistics from tsinfo-get operation Rahul Rameshbabu
2024-03-12 23:55 ` Jakub Kicinski
2024-03-14 0:22 ` Rahul Rameshbabu
2024-03-14 0:47 ` Jakub Kicinski
2024-03-14 6:07 ` Rahul Rameshbabu
2024-03-14 18:05 ` Jakub Kicinski
2024-03-14 18:39 ` Rahul Rameshbabu
2024-03-14 20:04 ` Jakub Kicinski
2024-03-14 20:05 ` Rahul Rameshbabu
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