From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: Wesley Cheng <wesley.cheng@oss.qualcomm.com>,
Mathias Nyman <mathias.nyman@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Michal Pecio <michal.pecio@gmail.com>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-sound@vger.kernel.org, 胡连勤 <hulianqin@vivo.com>
Subject: Re: [PATCH v4 0/5] Add larger page size support for USB audio offload path
Date: Fri, 2 Oct 2026 01:33:52 +0300 [thread overview]
Message-ID: <92d80a55-4422-4659-8f2d-e28693d6d9d7@linux.intel.com> (raw)
In-Reply-To: <d7ce8b23-64c0-43dd-a8c8-268224b9462c@oss.qualcomm.com>
On 10/1/26 01:23, Wesley Cheng wrote:
>
> Hi Mathias,
>
> Just checking to see if there was anything that we needed to account for in this series? I think there was the discussion that came up here:
> https://lore.kernel.org/all/TYUPR06MB6217000B59003EDF233D7246D2B22@TYUPR06MB6217.apcprd06.prod.outlook.com/
Patch v4 1/5: Looks good, is useful even as a standalone patch. Can be taken immediately.
Patch v4 2/5: Looks good, not useful as standalone patch, can be taken with rest of series.
Patch v4 3/5: I need to revisit this and look at new dma pool lifetime vs xHC accessing those DMA addresses.
PAtch v4 Rest: ALSA, no opinion.
>
> But, I think your suggestion about adding the sideband check in the xhci_setup_device() would mitigate that problem. Esp, if we don't want xHCI core to really know about sideband ops.
That would be the bandaid in:
https://lore.kernel.org/all/c6c9890f-46d8-42f1-a7e7-8a5d551fa22c@linux.intel.com/
I can turn that into a proper patch.
Lianqin also gave some preliminary positive feedback, but I'm not sure if the code was
ever properly tested.
Thanks
Mathias
next prev parent reply other threads:[~2026-10-01 22:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-10 1:50 Wesley Cheng
2026-09-10 1:50 ` [PATCH v4 1/5] usb: xhci: sideband: fix ring sg table for sub-page TRB segments Wesley Cheng
2026-09-10 1:50 ` [PATCH v4 2/5] usb: xhci: Allow to specify a different segment pool for allocations Wesley Cheng
2026-09-10 1:50 ` [PATCH v4 3/5] usb: xhci: sideband: allocate sideband ring segments from a dedicated pool Wesley Cheng
2026-09-10 1:51 ` [PATCH v4 4/5] ALSA: usb-audio: qcom: tag sideband endpoints before ring allocation Wesley Cheng
2026-09-10 1:51 ` [PATCH v4 5/5] ALSA: usb-audio: qcom: fix xfer ring IOMMU unmap on 16K+ page kernels Wesley Cheng
2026-09-30 22:23 ` [PATCH v4 0/5] Add larger page size support for USB audio offload path Wesley Cheng
2026-10-01 22:33 ` Mathias Nyman [this message]
2026-10-02 1:42 ` Wesley Cheng
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