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GET /api/patches/131222/?format=api
{ "id": 131222, "url": "https://patches.dpdk.org/api/patches/131222/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20230907081040.1002478-2-amitprakashs@marvell.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20230907081040.1002478-2-amitprakashs@marvell.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20230907081040.1002478-2-amitprakashs@marvell.com", "date": "2023-09-07T08:10:39", "name": "[v1,1/2] dmadev: offload to free source buffer", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "3870db751478842baaf2cbb69e02fcc3ffab99d5", "submitter": { "id": 2699, "url": "https://patches.dpdk.org/api/people/2699/?format=api", "name": "Amit Prakash Shukla", "email": "amitprakashs@marvell.com" }, "delegate": { "id": 1, "url": "https://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20230907081040.1002478-2-amitprakashs@marvell.com/mbox/", "series": [ { "id": 29442, "url": "https://patches.dpdk.org/api/series/29442/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=29442", "date": "2023-09-07T08:10:38", "name": "offload support to free dma source buffer", "version": 1, "mbox": "https://patches.dpdk.org/series/29442/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/131222/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/131222/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 64DA242534;\n\tThu, 7 Sep 2023 10:11:00 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 60E36402DA;\n\tThu, 7 Sep 2023 10:11:00 +0200 (CEST)", "from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com\n [67.231.156.173])\n by mails.dpdk.org (Postfix) with ESMTP id E084C402D9\n for <dev@dpdk.org>; Thu, 7 Sep 2023 10:10:58 +0200 (CEST)", "from pps.filterd (m0045851.ppops.net [127.0.0.1])\n by mx0b-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id\n 3876uQ7I002406; Thu, 7 Sep 2023 01:10:58 -0700", "from dc5-exch01.marvell.com ([199.233.59.181])\n by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3sv4jkjcr7-1\n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT);\n Thu, 07 Sep 2023 01:10:58 -0700", "from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH01.marvell.com\n (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48;\n Thu, 7 Sep 2023 01:10:56 -0700", "from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com\n (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend\n Transport; Thu, 7 Sep 2023 01:10:56 -0700", "from localhost.localdomain (unknown [10.28.36.157])\n by maili.marvell.com (Postfix) with ESMTP id E27025B6963;\n Thu, 7 Sep 2023 01:10:51 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com;\n h=from : to : cc :\n subject : date : message-id : in-reply-to : references : mime-version :\n content-type : content-transfer-encoding; s=pfpt0220;\n bh=MOEgQgWwGhbYkpCIEEhxyB/A9+dwwt4yQigBwFhoQg8=;\n b=USjlK+QtyCARpFl8FornYrOE/IwpVt+xG2Ygs3hwPfor0mUBbv5H2/CyIpwMcmUK0y0L\n S7U0YkZ+LIFcp7lweDci6lwgtV9SUZcG9G4qi/TrMem2uQ0b3dK19nq4bLnnWEZEOoZS\n JvdhkJY1R0ngxi/jiQxiKyT8qMnc9U23BYu6BlhwopEcPzMnZiKd9B0ZpLcVk/H+Http\n MTNQd/2ycjJYE9JvJ0Y5Fq2SsqfoHIRugiyYw80WQ5XIPbAOgvAiU0VTJ7r8N6sYW0r0\n 2Z9ny0dDVIF6HltqjQ+00BpZI4jboq3hiijHalSYQP0ft6fh+B9TKtllutTU1rA7QrBQ ww==", "From": "Amit Prakash Shukla <amitprakashs@marvell.com>", "To": "Chengwen Feng <fengchengwen@huawei.com>, Kevin Laatz\n <kevin.laatz@intel.com>, Bruce Richardson <bruce.richardson@intel.com>", "CC": "<dev@dpdk.org>, <jerinj@marvell.com>, <conor.walsh@intel.com>,\n <vattunuru@marvell.com>, <g.singh@nxp.com>, <sachin.saxena@oss.nxp.com>,\n <hemant.agrawal@nxp.com>, <cheng1.jiang@intel.com>,\n <ndabilpuram@marvell.com>, <anoobj@marvell.com>,\n Amit Prakash Shukla <amitprakashs@marvell.com>, =?utf-8?q?Morten_Br=C3=B8ru?=\n\t=?utf-8?q?p?= <mb@smartsharesystems.com>", "Subject": "[PATCH v1 1/2] dmadev: offload to free source buffer", "Date": "Thu, 7 Sep 2023 13:40:39 +0530", "Message-ID": "<20230907081040.1002478-2-amitprakashs@marvell.com>", "X-Mailer": "git-send-email 2.25.1", "In-Reply-To": "<20230907081040.1002478-1-amitprakashs@marvell.com>", "References": "<20230907081040.1002478-1-amitprakashs@marvell.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-GUID": "rG3tCUdkisQoZ9VuICPVv6FVM56TIua8", "X-Proofpoint-ORIG-GUID": "rG3tCUdkisQoZ9VuICPVv6FVM56TIua8", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26\n definitions=2023-09-06_12,2023-09-05_01,2023-05-22_02", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "This changeset adds support in DMA library to free source DMA buffer by\nhardware. On a supported hardware, application can pass on the mempool\ninformation as part of vchan config when the DMA transfer direction is\nconfigured as RTE_DMA_DIR_MEM_TO_DEV.\n\nSigned-off-by: Amit Prakash Shukla <amitprakashs@marvell.com>\nAcked-by: Morten Brørup <mb@smartsharesystems.com>\n---\n lib/dmadev/rte_dmadev.h | 27 +++++++++++++++++++++++++++\n 1 file changed, 27 insertions(+)", "diff": "diff --git a/lib/dmadev/rte_dmadev.h b/lib/dmadev/rte_dmadev.h\nindex b157ab7600..d6a685907f 100644\n--- a/lib/dmadev/rte_dmadev.h\n+++ b/lib/dmadev/rte_dmadev.h\n@@ -278,6 +278,13 @@ int16_t rte_dma_next_dev(int16_t start_dev_id);\n #define RTE_DMA_CAPA_OPS_COPY_SG\tRTE_BIT64(33)\n /** Support fill operation. */\n #define RTE_DMA_CAPA_OPS_FILL\t\tRTE_BIT64(34)\n+/** Support for source buffer free for mem to dev transfer.\n+ *\n+ * @note Even though the DMA driver has this capability, it may not support all\n+ * mempool drivers. If the mempool is not supported by the DMA driver,\n+ * rte_dma_vchan_setup() will fail.\n+ **/\n+#define RTE_DMA_CAPA_MEM_TO_DEV_SOURCE_BUFFER_FREE\tRTE_BIT64(35)\n /**@}*/\n \n /**\n@@ -581,6 +588,19 @@ struct rte_dma_vchan_conf {\n \t * @see struct rte_dma_port_param\n \t */\n \tstruct rte_dma_port_param dst_port;\n+\t/** mempool from which source buffer is allocated. mempool info is used\n+\t * for freeing source buffer by hardware when configured direction is\n+\t * RTE_DMA_DIR_MEM_TO_DEV. To free the source buffer by hardware,\n+\t * RTE_DMA_OP_FLAG_FREE_SBUF must be set while calling rte_dma_copy and\n+\t * rte_dma_copy_sg().\n+\t *\n+\t * @note If the mempool is not supported by the DMA driver,\n+\t * rte_dma_vchan_setup() will fail.\n+\t *\n+\t * @see RTE_DMA_OP_FLAG_FREE_SBUF\n+\t */\n+\tstruct rte_mempool *mem_to_dev_src_buf_pool;\n+\n };\n \n /**\n@@ -818,6 +838,13 @@ struct rte_dma_sge {\n * capability bit for this, driver should not return error if this flag was set.\n */\n #define RTE_DMA_OP_FLAG_LLC RTE_BIT64(2)\n+/** Mem to dev source buffer free flag.\n+ * Used for freeing source DMA buffer by hardware when the transfer direction is\n+ * configured as RTE_DMA_DIR_MEM_TO_DEV.\n+ *\n+ * @see struct rte_dma_vchan_conf::mem_to_dev_src_buf_pool\n+ */\n+#define RTE_DMA_OP_FLAG_FREE_SBUF\tRTE_BIT64(3)\n /**@}*/\n \n /**\n", "prefixes": [ "v1", "1/2" ] }