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From: "Lynch, Nathan" <nathan.lynch@amd.com>
To: Frank Li <Frank.li@nxp.com>
Cc: Vinod Koul <vkoul@kernel.org>, Wei Huang <wei.huang2@amd.com>,
	Mario Limonciello <mario.limonciello@amd.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Jonathan Cameron <jonathan.cameron@huawei.com>,
	Stephen Bates <Stephen.Bates@amd.com>,
	PradeepVineshReddy.Kodamati@amd.com, John.Kariuki@amd.com,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	dmaengine@vger.kernel.org
Subject: Re: [PATCH 06/23] dmaengine: sdxi: Allocate DMA pools
Date: Mon, 20 Apr 2026 17:16:25 -0500	[thread overview]
Message-ID: <67b36b5c-718c-4a9d-94a1-0db790655319@amd.com> (raw)
In-Reply-To: <aeXPvc-9pRSNFKAR@lizhi-Precision-Tower-5810>

On 4/20/2026 2:03 AM, Frank Li wrote:
> On Fri, Apr 10, 2026 at 08:07:16AM -0500, Nathan Lynch wrote:
>>
>> +static int sdxi_create_dma_pool(struct sdxi_dev *sdxi, struct dma_pool **pool,
>> +                             const char *name, size_t size)
>> +{
>> +     *pool = dmam_pool_create(name, sdxi_to_dev(sdxi), size, size, 0);
>> +     return *pool ? 0 : -ENOMEM;
>> +}
> 
> This helper funciton is not help much!

Hmm OK. I can drop it and make sdxi_device_init() look something like this
instead?

static int sdxi_device_init(struct sdxi_dev *sdxi)
{
	struct device *dev = sdxi_to_dev(sdxi);
	size_t sz;

	sz = sizeof(__le64);
	sdxi->write_index_pool = dmam_pool_create("Write_Index", dev, sz, sz, 0);
	if (!sdxi->write_index_pool)
		return -ENOMEM;

	sz = sizeof(struct sdxi_cxt_sts);
	sdxi->cxt_sts_pool = dmam_pool_create("CXT_STS", dev, sz, sz, 0);
	if (!sdxi->cxt_sts_pool)
		return -ENOMEM;

	sz = sizeof(struct sdxi_cxt_ctl);
	sdxi->cxt_ctl_pool = dmam_pool_create("CXT_CTL", dev, sz, sz, 0);
	if (!sdxi->cxt_ctl_pool)
		return -ENOMEM;

	sz = sizeof(struct sdxi_cst_blk);
	sdxi->cst_blk_pool = dmam_pool_create("CST_BLK", dev, sz, sz, 0);
	if (!sdxi->cst_blk_pool)
		return -ENOMEM;


  reply	other threads:[~2026-04-20 22:16 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-10 13:07 [PATCH 00/23] dmaengine: Smart Data Accelerator Interface (SDXI) basic support Nathan Lynch via B4 Relay
2026-04-10 13:07 ` [PATCH 01/23] PCI: Add SNIA SDXI accelerator sub-class Nathan Lynch via B4 Relay
2026-04-10 13:07 ` [PATCH 02/23] MAINTAINERS: Add entry for SDXI driver Nathan Lynch via B4 Relay
2026-04-10 13:07 ` [PATCH 03/23] dmaengine: sdxi: Add PCI initialization Nathan Lynch via B4 Relay
2026-04-20  6:36   ` Frank Li
2026-04-20 15:29     ` Lynch, Nathan
2026-04-10 13:07 ` [PATCH 04/23] dmaengine: sdxi: Feature discovery and initial configuration Nathan Lynch via B4 Relay
2026-04-20  6:51   ` Frank Li
2026-04-20 19:31     ` Lynch, Nathan
2026-04-10 13:07 ` [PATCH 05/23] dmaengine: sdxi: Configure context tables Nathan Lynch via B4 Relay
2026-04-10 13:07 ` [PATCH 06/23] dmaengine: sdxi: Allocate DMA pools Nathan Lynch via B4 Relay
2026-04-20  7:03   ` Frank Li
2026-04-20 22:16     ` Lynch, Nathan [this message]
2026-04-10 13:07 ` [PATCH 07/23] dmaengine: sdxi: Allocate administrative context Nathan Lynch via B4 Relay
2026-04-20  7:11   ` Frank Li
2026-04-10 13:07 ` [PATCH 08/23] dmaengine: sdxi: Install " Nathan Lynch via B4 Relay
2026-04-20  7:16   ` Frank Li
2026-04-10 13:07 ` [PATCH 09/23] dmaengine: sdxi: Start functions on probe, stop on remove Nathan Lynch via B4 Relay
2026-04-20  7:18   ` Frank Li
2026-04-10 13:07 ` [PATCH 10/23] dmaengine: sdxi: Complete administrative context jump start Nathan Lynch via B4 Relay
2026-04-20  7:33   ` Frank Li
2026-04-10 13:07 ` [PATCH 11/23] dmaengine: sdxi: Add client context alloc and release APIs Nathan Lynch via B4 Relay
2026-04-20  8:19   ` Frank Li
2026-04-10 13:07 ` [PATCH 12/23] dmaengine: sdxi: Add descriptor ring management Nathan Lynch via B4 Relay
2026-04-20  8:32   ` Frank Li
2026-04-20 22:42     ` Lynch, Nathan
2026-04-10 13:07 ` [PATCH 13/23] dmaengine: sdxi: Add unit tests for descriptor ring reservations Nathan Lynch via B4 Relay
2026-04-10 13:07 ` [PATCH 14/23] dmaengine: sdxi: Attach descriptor ring state to contexts Nathan Lynch via B4 Relay
2026-04-20  8:34   ` Frank Li
2026-04-10 13:07 ` [PATCH 15/23] dmaengine: sdxi: Per-context access key (AKey) table entry allocator Nathan Lynch via B4 Relay
2026-04-20  8:39   ` Frank Li
2026-04-10 13:07 ` [PATCH 16/23] dmaengine: sdxi: Generic descriptor manipulation helpers Nathan Lynch via B4 Relay
2026-04-20  8:40   ` Frank Li
2026-04-10 13:07 ` [PATCH 17/23] dmaengine: sdxi: Add completion status block API Nathan Lynch via B4 Relay
2026-04-20  8:44   ` Frank Li
2026-04-10 13:07 ` [PATCH 18/23] dmaengine: sdxi: Encode context start, stop, and sync descriptors Nathan Lynch via B4 Relay
2026-04-20  8:48   ` Frank Li
2026-04-10 13:07 ` [PATCH 19/23] dmaengine: sdxi: Provide context start and stop APIs Nathan Lynch via B4 Relay
2026-04-20  8:50   ` Frank Li
2026-04-10 13:07 ` [PATCH 20/23] dmaengine: sdxi: Encode nop, copy, and interrupt descriptors Nathan Lynch via B4 Relay
2026-04-20  8:52   ` Frank Li
2026-04-10 13:07 ` [PATCH 21/23] dmaengine: sdxi: Add unit tests for descriptor encoding Nathan Lynch via B4 Relay
2026-04-10 13:07 ` [PATCH 22/23] dmaengine: sdxi: MSI/MSI-X vector allocation and mapping Nathan Lynch via B4 Relay
2026-04-20  8:54   ` Frank Li
2026-04-10 13:07 ` [PATCH 23/23] dmaengine: sdxi: Add DMA engine provider Nathan Lynch via B4 Relay
2026-04-20  9:08   ` Frank Li

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