From: Jakub Kicinski <kuba@kernel.org>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: "Björn Töpel" <bjorn@kernel.org>,
robin.murphy@arm.com, tglx@kernel.org,
dave.hansen@linux.intel.com, x86@kernel.org, joro@8bytes.org,
will@kernel.org, leon@kernel.org, mbloch@nvidia.com,
iommu@lists.linux.dev, netdev@vger.kernel.org
Subject: Re: [RFC 07/11] eth: ixgbe: use dma_alloc_coherent_node()
Date: Thu, 29 Oct 2026 08:47:56 -0700 [thread overview]
Message-ID: <20261029084756.06a2a827@kernel.org> (raw)
In-Reply-To: <abae1606-cc43-4ad4-b486-3a6e6aeed1b9@samsung.com>
On Thu, 29 Oct 2026 10:17:07 +0100 Marek Szyprowski wrote:
> > Agree that it's odd that the caller need to know CMA internals, but I'm
> > not sure retrying the entire DMA allocation in the helper is the right
> > way. Can the fallback be handled in dma_alloc_contigous()? I would still
> > not do that in this series, but keep as is.
>
> Definitely, I would prefer to add such fallback to dma_alloc_contigous().
Alright, so to be clear the plan is to stick to the "may or may not,
good luck" semantics.
next prev parent reply other threads:[~2026-10-29 15:47 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-27 2:25 [RFC 00/11] dma-mapping: add dma_alloc_attrs_node() and dma_alloc_coherent_node() Jakub Kicinski
2026-10-27 2:25 ` [RFC 01/11] dma-contiguous: pass the NUMA node to dma_alloc_contiguous() Jakub Kicinski
2026-10-27 2:25 ` [RFC 02/11] dma-direct: pass the NUMA node to dma_direct_alloc() Jakub Kicinski
2026-10-27 2:25 ` [RFC 03/11] iommu/dma: pass the NUMA node to iommu_dma_alloc() Jakub Kicinski
2026-10-27 2:25 ` [RFC 04/11] dma-mapping: add dma_alloc_attrs_node() and dma_alloc_coherent_node() Jakub Kicinski
2026-10-27 9:03 ` Björn Töpel
2026-10-27 15:53 ` Jakub Kicinski
2026-10-27 15:24 ` Marek Szyprowski
2026-10-27 17:52 ` Jakub Kicinski
2026-10-28 9:00 ` Marek Szyprowski
2026-10-27 2:25 ` [RFC 05/11] eth: libwx: restore the device's NUMA node after ring allocation Jakub Kicinski
2026-10-27 2:25 ` [RFC 06/11] eth: libwx: use dma_alloc_coherent_node() Jakub Kicinski
2026-10-27 2:25 ` [RFC 07/11] eth: ixgbe: " Jakub Kicinski
2026-10-27 9:06 ` Björn Töpel
2026-10-27 15:51 ` Jakub Kicinski
2026-10-27 16:06 ` Björn Töpel
2026-10-27 18:20 ` Jakub Kicinski
2026-10-29 8:47 ` Björn Töpel
2026-10-29 9:17 ` Marek Szyprowski
2026-10-29 15:47 ` Jakub Kicinski [this message]
2026-10-27 2:25 ` [RFC 08/11] eth: xgbe: " Jakub Kicinski
2026-10-27 2:25 ` [RFC 09/11] eth: fungible: " Jakub Kicinski
2026-10-27 2:25 ` [RFC 10/11] eth: mlx5: " Jakub Kicinski
2026-10-27 2:25 ` [RFC 11/11] eth: mlx4: " Jakub Kicinski
2026-10-27 9:03 ` [RFC 00/11] dma-mapping: add dma_alloc_attrs_node() and dma_alloc_coherent_node() Björn Töpel
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