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GET /api/patches/132422/?format=api
{ "id": 132422, "url": "http://patches.dpdk.org/api/patches/132422/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20231009120236.1641008-2-amitprakashs@marvell.com/", "project": { "id": 1, "url": "http://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": "<20231009120236.1641008-2-amitprakashs@marvell.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20231009120236.1641008-2-amitprakashs@marvell.com", "date": "2023-10-09T12:02:35", "name": "[v4,1/2] dmadev: offload to auto free DMA buffer", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "95c6c7ab93c852153377fda39e2877dc6d4f93ac", "submitter": { "id": 2699, "url": "http://patches.dpdk.org/api/people/2699/?format=api", "name": "Amit Prakash Shukla", "email": "amitprakashs@marvell.com" }, "delegate": { "id": 1, "url": "http://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20231009120236.1641008-2-amitprakashs@marvell.com/mbox/", "series": [ { "id": 29770, "url": "http://patches.dpdk.org/api/series/29770/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=29770", "date": "2023-10-09T12:02:34", "name": "offload support to auto free dma buffer", "version": 4, "mbox": "http://patches.dpdk.org/series/29770/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/132422/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/132422/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 A5A8E4233C;\n\tMon, 9 Oct 2023 14:03:07 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 93AB040691;\n\tMon, 9 Oct 2023 14:03:07 +0200 (CEST)", "from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com\n [67.231.148.174])\n by mails.dpdk.org (Postfix) with ESMTP id 247FC40691\n for <dev@dpdk.org>; Mon, 9 Oct 2023 14:03:05 +0200 (CEST)", "from pps.filterd (m0045849.ppops.net [127.0.0.1])\n by mx0a-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id\n 398NU4ma010336; Mon, 9 Oct 2023 05:03:05 -0700", "from dc5-exch01.marvell.com ([199.233.59.181])\n by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3tkh9sm35k-1\n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT);\n Mon, 09 Oct 2023 05:03:05 -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 Mon, 9 Oct 2023 05:03:03 -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; Mon, 9 Oct 2023 05:03:03 -0700", "from localhost.localdomain (unknown [10.28.36.157])\n by maili.marvell.com (Postfix) with ESMTP id 30D353F7051;\n Mon, 9 Oct 2023 05:02:58 -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=6cHAIhPn9MrK8xuuZ3YvzO3/UZRbEigCrq/LMoZ8I84=;\n b=EaBKKzBxs/vXk8GKneHVGDNdklI86Up7c4KS0kunCm4aDaUWXecI8E1gPDSexYyvQ7Wp\n vAdIcD0A6/pKRjv34ud9QsSSu/A0HcxkPqvwlVFnpIN18X0sbjlNj8elNa8n3Xmnp741\n M1rWPF0Il7HIyCxBUm7H+8S62GAYUKADaBr7xiXnRr1/livEkxLRdtthFzjXSkPxdh8t\n dsjNibQdSmjTor0QftFi12EUrkBp1IaINMzFSZVbr+GeW14TuyKwxi34nqsUU9l4taAO\n D7qktageoYxtNXKU9X+jDLAtT2I6N/FoV6rkY/rNbv/qEfLSMIRho5GxgzQA4eJtWqnB 1A==", "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>,\n <sachin.saxena@oss.nxp.com>, <hemant.agrawal@nxp.com>,\n <cheng1.jiang@intel.com>, <ndabilpuram@marvell.com>,\n <anoobj@marvell.com>, <mb@smartsharesystems.com>,\n Amit Prakash Shukla <amitprakashs@marvell.com>", "Subject": "[PATCH v4 1/2] dmadev: offload to auto free DMA buffer", "Date": "Mon, 9 Oct 2023 17:32:35 +0530", "Message-ID": "<20231009120236.1641008-2-amitprakashs@marvell.com>", "X-Mailer": "git-send-email 2.25.1", "In-Reply-To": "<20231009120236.1641008-1-amitprakashs@marvell.com>", "References": "<20230928115031.259592-1-amitprakashs@marvell.com>\n <20231009120236.1641008-1-amitprakashs@marvell.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-GUID": "1wyXw3UQy8tjkXA3O4ty4EVqrATok_fB", "X-Proofpoint-ORIG-GUID": "1wyXw3UQy8tjkXA3O4ty4EVqrATok_fB", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26\n definitions=2023-10-09_11,2023-10-09_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 auto free DMA buffer by\nhardware. On a supported hardware, application can pass on the mempool\ninformation as part of vchan config.\n\nSigned-off-by: Amit Prakash Shukla <amitprakashs@marvell.com>\nAcked-by: Morten Brørup <mb@smartsharesystems.com>\nAcked-by: Anoob Joseph <anoobj@marvell.com>\n---\n lib/dmadev/rte_dmadev.h | 43 +++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 43 insertions(+)", "diff": "diff --git a/lib/dmadev/rte_dmadev.h b/lib/dmadev/rte_dmadev.h\nindex b157ab7600..493263a5d6 100644\n--- a/lib/dmadev/rte_dmadev.h\n+++ b/lib/dmadev/rte_dmadev.h\n@@ -269,6 +269,14 @@ int16_t rte_dma_next_dev(int16_t start_dev_id);\n * must ensure that all memory addresses are valid and accessible by HW.\n */\n #define RTE_DMA_CAPA_HANDLES_ERRORS\tRTE_BIT64(6)\n+/** Support auto free for source buffer once mem to dev transfer is completed.\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_M2D_AUTO_FREE RTE_BIT64(7)\n+\n /** Support copy operation.\n * This capability start with index of 32, so that it could leave gap between\n * normal capability and ops capability.\n@@ -552,6 +560,26 @@ struct rte_dma_port_param {\n \tuint64_t reserved[2]; /**< Reserved for future fields. */\n };\n \n+/**\n+ * A structure used for offload auto free params.\n+ */\n+struct rte_dma_auto_free_param {\n+\tunion {\n+\t\tstruct {\n+\t\t\t/**\n+\t\t\t * Mempool from which buffer is allocated. Mempool info\n+\t\t\t * is used for freeing buffer by hardware.\n+\t\t\t *\n+\t\t\t * @note If the mempool is not supported by the DMA device,\n+\t\t\t * rte_dma_vchan_setup() will fail.\n+\t\t\t */\n+\t\t\tstruct rte_mempool *pool;\n+\t\t} m2d;\n+\t};\n+\t/** Reserved for future fields. */\n+\tuint64_t reserved[2];\n+};\n+\n /**\n * A structure used to configure a virtual DMA channel.\n *\n@@ -581,6 +609,14 @@ 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/** Buffer params to auto free buffer by hardware. To free the buffer\n+\t * by hardware, RTE_DMA_OP_FLAG_AUTO_FREE must be set while calling\n+\t * rte_dma_copy and rte_dma_copy_sg().\n+\t *\n+\t * @see RTE_DMA_OP_FLAG_AUTO_FREE\n+\t * @see struct rte_dma_auto_free_param\n+\t */\n+\tstruct rte_dma_auto_free_param auto_free;\n };\n \n /**\n@@ -818,6 +854,13 @@ 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+/** Auto free buffer flag.\n+ * Operation with this flag must issue command to hardware to free the DMA\n+ * buffer after DMA transfer is completed.\n+ *\n+ * @see struct rte_dma_vchan_conf::auto_free\n+ */\n+#define RTE_DMA_OP_FLAG_AUTO_FREE\tRTE_BIT64(3)\n /**@}*/\n \n /**\n", "prefixes": [ "v4", "1/2" ] }