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From: Jie Luo <quic_luoj@quicinc.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Lei Wei <quic_leiwei@quicinc.com>,
	Suruchi Agarwal <quic_suruchia@quicinc.com>,
	Pavithra R <quic_pavir@quicinc.com>,
	"Simon Horman" <horms@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>, Kees Cook <kees@kernel.org>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	"Philipp Zabel" <p.zabel@pengutronix.de>,
	<linux-arm-msm@vger.kernel.org>, <netdev@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-doc@vger.kernel.org>, <linux-hardening@vger.kernel.org>,
	<quic_kkumarcs@quicinc.com>, <quic_linchen@quicinc.com>,
	<srinivas.kandagatla@linaro.org>,
	<bartosz.golaszewski@linaro.org>, <john@phrozen.org>
Subject: Re: [PATCH net-next v3 04/14] net: ethernet: qualcomm: Initialize PPE buffer management for IPQ9574
Date: Wed, 19 Feb 2025 21:00:53 +0800	[thread overview]
Message-ID: <2aa1c649-6fce-40b1-bbf7-1d6d756dbbec@quicinc.com> (raw)
In-Reply-To: <17d9f02c-3eb3-4bae-8a2c-0504747de6f2@lunn.ch>



On 2/11/2025 9:14 PM, Andrew Lunn wrote:
>> +/* Assign the share buffer number 1550 to group 0 by default. */
>> +static const int ipq9574_ppe_bm_group_config = 1550;
> 
> To a large extent, the comment is useless. What should be in the
> comment is why, not what.
> 
> 	Andrew
> 

OK, I will improve the comment to describe it better.

There are total 2048 buffers available in PPE, out of which some
buffers are reserved for some specific purposes. The rest of the
pool of 1550 buffers are assigned to the general 'group0' which
is shared among all ports of the PPE.


  reply	other threads:[~2025-02-19 13:01 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-09 14:29 [PATCH net-next v3 00/14] Add PPE driver for Qualcomm IPQ9574 SoC Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 01/14] dt-bindings: net: Add PPE " Luo Jie
2025-02-10  2:47   ` Jie Gan
2025-02-11 14:02     ` Jie Luo
2025-02-09 14:29 ` [PATCH net-next v3 02/14] docs: networking: Add PPE driver documentation " Luo Jie
2025-02-10  2:15   ` Bagas Sanjaya
2025-02-11 12:36     ` Lei Wei
2025-02-09 14:29 ` [PATCH net-next v3 03/14] net: ethernet: qualcomm: Add PPE driver for " Luo Jie
2025-02-10  2:12   ` Jie Gan
2025-02-11 13:04     ` Andrew Lunn
2025-02-12  1:49       ` Jie Gan
2025-02-11 13:58     ` Jie Luo
2025-02-12  1:58       ` Jie Gan
2025-02-14  6:09         ` Jie Luo
2025-02-09 14:29 ` [PATCH net-next v3 04/14] net: ethernet: qualcomm: Initialize PPE buffer management for IPQ9574 Luo Jie
2025-02-11 13:14   ` Andrew Lunn
2025-02-19 13:00     ` Jie Luo [this message]
2025-02-11 13:22   ` Andrew Lunn
2025-02-20 14:38     ` Jie Luo
2025-02-20 15:09       ` Andrew Lunn
2025-03-06 10:01         ` Jie Luo
2025-03-06 15:29           ` Andrew Lunn
2025-03-11 10:44             ` Jie Luo
2025-02-09 14:29 ` [PATCH net-next v3 05/14] net: ethernet: qualcomm: Initialize PPE queue " Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 06/14] net: ethernet: qualcomm: Initialize the PPE scheduler settings Luo Jie
2025-02-11 13:32   ` Andrew Lunn
2025-02-20 14:50     ` Jie Luo
2025-02-20 15:12       ` Andrew Lunn
2025-02-28 15:24         ` Jie Luo
2025-02-09 14:29 ` [PATCH net-next v3 07/14] net: ethernet: qualcomm: Initialize PPE queue settings Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 08/14] net: ethernet: qualcomm: Initialize PPE service code settings Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 09/14] net: ethernet: qualcomm: Initialize PPE port control settings Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 10/14] net: ethernet: qualcomm: Initialize PPE RSS hash settings Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 11/14] net: ethernet: qualcomm: Initialize PPE queue to Ethernet DMA ring mapping Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 12/14] net: ethernet: qualcomm: Initialize PPE L2 bridge settings Luo Jie
2025-02-09 14:29 ` [PATCH net-next v3 13/14] net: ethernet: qualcomm: Add PPE debugfs support for PPE counters Luo Jie
2025-02-11 13:55   ` Andrew Lunn
2025-02-14  7:53     ` Jie Luo
2025-02-14 14:02       ` Andrew Lunn
2025-02-18 11:16         ` Jie Luo
2025-02-09 14:29 ` [PATCH net-next v3 14/14] MAINTAINERS: Add maintainer for Qualcomm PPE driver Luo Jie

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