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From: Kalle Valo <kvalo@kernel.org>
To: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Cc: <ath11k@lists.infradead.org>, <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH 2/3] ath11k: Add multi TX ring support for WCN6750
Date: Fri, 02 Sep 2022 15:49:24 +0300	[thread overview]
Message-ID: <878rn2aqln.fsf@kernel.org> (raw)
In-Reply-To: <20220720135113.15755-3-quic_mpubbise@quicinc.com> (Manikanta Pubbisetty's message of "Wed, 20 Jul 2022 19:21:12 +0530")

Manikanta Pubbisetty <quic_mpubbise@quicinc.com> writes:

> Currently in the case of WCN6750, only one TCL ring is used for TX,
> this is limiting the TX throughput in 160 MHz case, enabling multiple
> TCL rings on WCN6750 has shown an improvement of nearly 300 Mbps in
> the case of TCP TX, therefore add the support of multi TX ring for
> WCN6750.
>
> Currently TCL ring is selected based on CPU ID, this logic cannot be
> applied for WCN6750 as there is chance of out of order TX of packets
> and to avoid this, choose TCL ring based on flow hash so that packets
> of the same flow will end up on same TCL ring. For the same reason,
> TCL ring retry logic is also not applicable for WCN6750.
>
> Also the mapping of TCL, WBM & RBM IDs for WCN6750 is different from
> existing devices. Create a new TCM/WBM/RBM mapping for WCN6750.
>
> Change does not impact existing ath11k devices.

It would also nice to document _why_ it doesn't impact existing (or do
you mean "other"?) devices.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

  reply	other threads:[~2022-09-02 14:19 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-20 13:51 [PATCH 0/3] Throughput fixes for WCN6750 Manikanta Pubbisetty
2022-07-20 13:51 ` [PATCH 1/3] ath11k: Enable threaded NAPI on WCN6750 Manikanta Pubbisetty
2022-09-02 12:37   ` Kalle Valo
2022-09-02 12:54     ` Manikanta Pubbisetty
2022-09-02 12:48   ` Kalle Valo
2022-09-02 13:17     ` Manikanta Pubbisetty
2022-09-02 13:20       ` Robert Marko
2022-09-02 13:42         ` Manikanta Pubbisetty
2022-09-02 13:46           ` Robert Marko
2022-09-02 14:30             ` Manikanta Pubbisetty
2022-09-08  6:46               ` Kalle Valo
2022-09-08  8:49                 ` Robert Marko
2022-09-08 12:15                   ` Kalle Valo
2022-09-08  6:49       ` Kalle Valo
2022-07-20 13:51 ` [PATCH 2/3] ath11k: Add multi TX ring support for WCN6750 Manikanta Pubbisetty
2022-09-02 12:49   ` Kalle Valo [this message]
2022-09-02 13:44     ` Manikanta Pubbisetty
2022-07-20 13:51 ` [PATCH 3/3] ath11k: Increase TCL data ring size " Manikanta Pubbisetty

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