From: Jakub Kicinski <kuba@kernel.org>
To: Chintan Vankar <c-vankar@ti.com>
Cc: Dan Carpenter <dan.carpenter@linaro.org>,
Siddharth Vadapalli <s-vadapalli@ti.com>,
Grygorii Strashko <grygorii.strashko@ti.com>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
Vladimir Oltean <vladimir.oltean@nxp.com>,
Andrew Lunn <andrew@lunn.ch>, Roger Quadros <rogerq@kernel.org>,
Richard Cochran <richardcochran@gmail.com>,
Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>,
"David S. Miller" <davem@davemloft.net>,
<linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>
Subject: Re: [PATCH net-next v4 2/3] net: ethernet: ti: am65-cpsw: Enable RX HW timestamp only for PTP packets
Date: Fri, 29 Mar 2024 14:59:04 -0700 [thread overview]
Message-ID: <20240329145904.0b7cb60f@kernel.org> (raw)
In-Reply-To: <20240327054234.1906957-2-c-vankar@ti.com>
On Wed, 27 Mar 2024 11:12:33 +0530 Chintan Vankar wrote:
> To prevent port lock up, disable TSTAMP_EN bit in CPTS_CONTROL
> register. The workaround for timestamping received packets is to
> utilize the CPTS Event FIFO that records timestamps corresponding to
> certain events, with one such event being the reception of an
> Ethernet packet with the EtherType field set to Precision Time
> Protocol (PTP).
You mention EtherType here but the drive retains L4 support,
which is somewhat confusing. Perhaps mention L4 / UDP ports
here, too.
next prev parent reply other threads:[~2024-03-29 21:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-27 5:42 [PATCH net-next v4 1/3] net: ethernet: ti: am65-cpts: Enable PTP RX HW timestamp using CPTS FIFO Chintan Vankar
2024-03-27 5:42 ` [PATCH net-next v4 2/3] net: ethernet: ti: am65-cpsw: Enable RX HW timestamp only for PTP packets Chintan Vankar
2024-03-29 21:59 ` Jakub Kicinski [this message]
2024-04-01 9:44 ` Chintan Vankar
2024-03-27 5:42 ` [PATCH net-next v4 3/3] net: ethernet: ti: am65-cpsw-ethtool: Update rx_filters for CPSW's timestamping capability Chintan Vankar
2024-03-29 21:55 ` Jakub Kicinski
2024-03-29 21:55 ` Jakub Kicinski
2024-03-29 21:55 ` Jakub Kicinski
2024-04-01 9:46 ` Chintan Vankar
2024-03-29 22:01 ` [PATCH net-next v4 1/3] net: ethernet: ti: am65-cpts: Enable PTP RX HW timestamp using CPTS FIFO Jakub Kicinski
2024-03-29 22:01 ` Jakub Kicinski
2024-03-29 22:01 ` Jakub Kicinski
2024-04-01 9:42 ` Chintan Vankar
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