From: sashiko-bot@kernel.org
To: "Koichiro Den" <den@valinux.co.jp>
Cc: linux-pci@vger.kernel.org, ntb@lists.linux.dev
Subject: Re: [PATCH v2 2/5] PCI: dwc: Expose endpoint DMA resources
Date: Fri, 28 Aug 2026 17:16:10 +0000 [thread overview]
Message-ID: <20260828171610.6B4E01F000E9@smtp.kernel.org> (raw)
In-Reply-To: <20260828170932.2735807-3-den@valinux.co.jp>
> Expose the endpoint-integrated eDMA register window and linked-list memory
> through the EPC auxiliary resource API. Endpoint functions can then choose
> which channels to export and map the required windows.
>
> Associate each linked-list region with the direction-flattened static
> channel ID used by the local dw-edma device. Report these resources only
> after that device is registered and only for channels with linked-list
> memory.
>
> When the register window is already part of a reserved BAR, report its BAR
> and offset. Otherwise report its CPU physical address.
>
> While at it, harden the existing doorbell resource query. Report it
> only after the local dw-edma device is registered, and reject VF
> queries because DWC cannot assign DMA/HDMA registers to VFs.
>
> Signed-off-by: Koichiro Den <den@valinux.co.jp>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260828170932.2735807-1-den@valinux.co.jp?part=2
next prev parent reply other threads:[~2026-08-28 17:16 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-28 17:09 [PATCH v2 0/5] PCI: endpoint: Remote DMA support via vNTB Koichiro Den
2026-08-28 17:09 ` [PATCH v2 1/5] PCI: endpoint: Add DMA auxiliary resource metadata Koichiro Den
2026-08-28 17:15 ` sashiko-bot
2026-08-28 18:48 ` Frank Li
2026-08-28 17:09 ` [PATCH v2 2/5] PCI: dwc: Expose endpoint DMA resources Koichiro Den
2026-08-28 17:16 ` sashiko-bot [this message]
2026-08-28 18:59 ` Frank Li
2026-08-28 17:09 ` [PATCH v2 3/5] PCI: endpoint: pci-epf-vntb: Move epf_ntb_is_bar_used() up Koichiro Den
2026-08-28 17:14 ` sashiko-bot
2026-08-28 18:59 ` Frank Li
2026-08-28 17:09 ` [PATCH v2 4/5] PCI: endpoint: pci-epf-vntb: Export endpoint DMA channels Koichiro Den
2026-08-28 17:24 ` sashiko-bot
2026-08-28 17:09 ` [PATCH v2 5/5] NTB: ntb_hw_epf: Discover vNTB-embedded DMA Koichiro Den
2026-08-28 17:24 ` sashiko-bot
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