From: Simon Horman <horms@kernel.org>
To: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Cc: Simei Su <simei.su@intel.com>,
netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org,
Wojciech Drewek <wojciech.drewek@intel.com>
Subject: Re: [Intel-wired-lan] [PATCH iwl-next v7 02/12] ice: support Rx timestamp on flex descriptor
Date: Sat, 8 Jun 2024 13:56:53 +0100 [thread overview]
Message-ID: <20240608125653.GU27689@kernel.org> (raw)
In-Reply-To: <20240604131400.13655-3-mateusz.polchlopek@intel.com>
On Tue, Jun 04, 2024 at 09:13:50AM -0400, Mateusz Polchlopek wrote:
> From: Simei Su <simei.su@intel.com>
>
> To support Rx timestamp offload, VIRTCHNL_OP_1588_PTP_CAPS is sent by
> the VF to request PTP capability and responded by the PF what capability
> is enabled for that VF.
>
> Hardware captures timestamps which contain only 32 bits of nominal
> nanoseconds, as opposed to the 64bit timestamps that the stack expects.
> To convert 32b to 64b, we need a current PHC time.
> VIRTCHNL_OP_1588_PTP_GET_TIME is sent by the VF and responded by the
> PF with the current PHC time.
>
> Signed-off-by: Simei Su <simei.su@intel.com>
> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
> Co-developed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
> Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
WARNING: multiple messages have this Message-ID (diff)
From: Simon Horman <horms@kernel.org>
To: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
Simei Su <simei.su@intel.com>,
Wojciech Drewek <wojciech.drewek@intel.com>
Subject: Re: [Intel-wired-lan] [PATCH iwl-next v7 02/12] ice: support Rx timestamp on flex descriptor
Date: Sat, 8 Jun 2024 13:56:53 +0100 [thread overview]
Message-ID: <20240608125653.GU27689@kernel.org> (raw)
In-Reply-To: <20240604131400.13655-3-mateusz.polchlopek@intel.com>
On Tue, Jun 04, 2024 at 09:13:50AM -0400, Mateusz Polchlopek wrote:
> From: Simei Su <simei.su@intel.com>
>
> To support Rx timestamp offload, VIRTCHNL_OP_1588_PTP_CAPS is sent by
> the VF to request PTP capability and responded by the PF what capability
> is enabled for that VF.
>
> Hardware captures timestamps which contain only 32 bits of nominal
> nanoseconds, as opposed to the 64bit timestamps that the stack expects.
> To convert 32b to 64b, we need a current PHC time.
> VIRTCHNL_OP_1588_PTP_GET_TIME is sent by the VF and responded by the
> PF with the current PHC time.
>
> Signed-off-by: Simei Su <simei.su@intel.com>
> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
> Co-developed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
> Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2024-06-08 12:57 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-04 13:13 [Intel-wired-lan] [PATCH iwl-next v7 00/12] Add support for Rx timestamping for both ice and iavf drivers Mateusz Polchlopek
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 01/12] virtchnl: add support for enabling PTP on iAVF Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:55 ` Simon Horman
2024-06-08 12:55 ` Simon Horman
2024-06-10 10:18 ` Mateusz Polchlopek
2024-06-10 10:18 ` Mateusz Polchlopek
2024-06-10 18:35 ` Jacob Keller
2024-06-10 18:35 ` Jacob Keller
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 02/12] ice: support Rx timestamp on flex descriptor Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:56 ` Simon Horman [this message]
2024-06-08 12:56 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 03/12] virtchnl: add enumeration for the rxdid format Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:57 ` Simon Horman
2024-06-08 12:57 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 04/12] iavf: add support for negotiating flexible RXDID format Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:56 ` Simon Horman
2024-06-08 12:56 ` Simon Horman
2024-06-08 12:58 ` Simon Horman
2024-06-08 12:58 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 05/12] iavf: negotiate PTP capabilities Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:58 ` Simon Horman
2024-06-08 12:58 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 06/12] iavf: add initial framework for registering PTP clock Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:58 ` Simon Horman
2024-06-08 12:58 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 07/12] iavf: add support for indirect access to PHC time Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:59 ` Simon Horman
2024-06-08 12:59 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 08/12] iavf: periodically cache " Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:59 ` Simon Horman
2024-06-08 12:59 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 09/12] iavf: refactor iavf_clean_rx_irq to support legacy and flex descriptors Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:59 ` Simon Horman
2024-06-08 12:59 ` Simon Horman
2024-06-11 11:47 ` Alexander Lobakin
2024-06-11 11:47 ` Alexander Lobakin
2024-06-11 20:52 ` Jacob Keller
2024-06-11 20:52 ` Jacob Keller
2024-06-12 11:51 ` Przemek Kitszel
2024-06-12 11:51 ` Przemek Kitszel
2024-06-12 12:33 ` Alexander Lobakin
2024-06-12 12:33 ` Alexander Lobakin
2024-06-21 14:21 ` Alexander Lobakin
2024-06-21 14:21 ` Alexander Lobakin
2024-06-21 15:08 ` Tony Nguyen
2024-06-21 15:08 ` Tony Nguyen
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 10/12] iavf: Implement checking DD desc field Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 12:59 ` Simon Horman
2024-06-08 12:59 ` Simon Horman
2024-06-04 13:13 ` [Intel-wired-lan] [PATCH iwl-next v7 11/12] iavf: handle set and get timestamps ops Mateusz Polchlopek
2024-06-04 13:13 ` Mateusz Polchlopek
2024-06-08 13:00 ` Simon Horman
2024-06-08 13:00 ` Simon Horman
2024-06-04 13:14 ` [Intel-wired-lan] [PATCH iwl-next v7 12/12] iavf: add support for Rx timestamps to hotpath Mateusz Polchlopek
2024-06-04 13:14 ` Mateusz Polchlopek
2024-06-08 13:00 ` Simon Horman
2024-06-08 13:00 ` Simon Horman
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