From: Jakub Kicinski <kuba@kernel.org>
To: "illusion.wang" <illusion.wang@nebula-matrix.com>
Cc: dimon.zhao@nebula-matrix.com, alvin.wang@nebula-matrix.com,
sam.chen@nebula-matrix.com, netdev@vger.kernel.org,
andrew+netdev@lunn.ch, corbet@lwn.net, horms@kernel.org,
linux-doc@vger.kernel.org, pabeni@redhat.com,
vadim.fedorenko@linux.dev, lukas.bulwahn@redhat.com,
edumazet@google.com, enelsonmoore@gmail.com,
skhan@linuxfoundation.org, hkallweit1@gmail.com,
linux-kernel@vger.kernel.org (open list)
Subject: Re: [PATCH v22 net-next 02/12] net/nebula-matrix: add core driver architecture and HW layer initialization
Date: Thu, 30 Jul 2026 18:13:11 -0700 [thread overview]
Message-ID: <20260730181311.660d9392@kernel.org> (raw)
In-Reply-To: <20260723040110.91410-3-illusion.wang@nebula-matrix.com>
On Thu, 23 Jul 2026 12:00:54 +0800 illusion.wang wrote:
> + err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
> + if (err) {
> + dev_dbg(dev, "Configure DMA 64 bit mask failed, err = %d\n",
> + err);
> + dma_32_err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
> + if (dma_32_err) {
Read the documentation for the DMA API, dma_set_mask_and_coherent()
is guaranteed to succeed in some cases..
next prev parent reply other threads:[~2026-07-31 1:13 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-23 4:00 [PATCH v22 net-next 00/12] nbl driver for Nebulamatrix NICs illusion.wang
2026-07-23 4:00 ` [PATCH v22 net-next 01/12] net/nebula-matrix: add minimum nbl build framework illusion.wang
2026-07-31 1:10 ` Jakub Kicinski
2026-07-23 4:00 ` [PATCH v22 net-next 02/12] net/nebula-matrix: add core driver architecture and HW layer initialization illusion.wang
2026-07-30 9:18 ` 回复：[PATCH " Illusion Wang
2026-07-31 1:13 ` Jakub Kicinski [this message]
2026-07-31 1:30 ` [PATCH " Jakub Kicinski
2026-07-23 4:00 ` [PATCH v22 net-next 03/12] net/nebula-matrix: add channel wire opcode enum definitions illusion.wang
2026-07-23 4:00 ` [PATCH v22 net-next 04/12] net/nebula-matrix: add channel layer illusion.wang
2026-07-31 1:27 ` Jakub Kicinski
2026-07-31 1:30 ` Jakub Kicinski
2026-07-23 4:00 ` [PATCH v22 net-next 05/12] net/nebula-matrix: add common resource implementation illusion.wang
2026-07-31 1:30 ` Jakub Kicinski
2026-07-23 4:00 ` [PATCH v22 net-next 06/12] net/nebula-matrix: add intr " illusion.wang
2026-07-31 1:30 ` Jakub Kicinski
2026-07-23 4:00 ` [PATCH v22 net-next 07/12] net/nebula-matrix: add chip-wide hardware init/deinit implementation illusion.wang
2026-07-31 1:30 ` Jakub Kicinski
2026-07-23 4:01 ` [PATCH v22 net-next 08/12] net/nebula-matrix: dispatch: add control-level routing core infrastructure illusion.wang
2026-07-23 4:01 ` [PATCH v22 net-next 09/12] net/nebula-matrix: dispatch: add cross-version channel message framework illusion.wang
2026-07-31 1:30 ` Jakub Kicinski
2026-07-23 4:01 ` [PATCH v22 net-next 10/12] net/nebula-matrix: dispatch: add mutual exclusion lock for shared hardware resource ops illusion.wang
2026-07-31 1:30 ` Jakub Kicinski
2026-07-23 4:01 ` [PATCH v22 net-next 11/12] net/nebula-matrix: add common/ctrl dev init/remove operation illusion.wang
2026-07-31 1:30 ` Jakub Kicinski
2026-07-23 4:01 ` [PATCH v22 net-next 12/12] net/nebula-matrix: add common dev start/stop operation illusion.wang
2026-07-31 1:30 ` Jakub Kicinski
2026-07-31 1:29 ` [PATCH v22 net-next 00/12] nbl driver for Nebulamatrix NICs Jakub Kicinski
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