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GET /api/patches/112620/?format=api
{ "id": 112620, "url": "http://patches.dpdk.org/api/patches/112620/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20220609134011.725343-1-kda@semihalf.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": "<20220609134011.725343-1-kda@semihalf.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20220609134011.725343-1-kda@semihalf.com", "date": "2022-06-09T13:40:11", "name": "[1/1] doc: expand description of no-huge and PMD issue", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "679384cde35caefa20f72fe86ddbce7d3bc99aa3", "submitter": { "id": 2179, "url": "http://patches.dpdk.org/api/people/2179/?format=api", "name": "Stanislaw Kardach", "email": "kda@semihalf.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/20220609134011.725343-1-kda@semihalf.com/mbox/", "series": [ { "id": 23451, "url": "http://patches.dpdk.org/api/series/23451/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=23451", "date": "2022-06-09T13:40:11", "name": "[1/1] doc: expand description of no-huge and PMD issue", "version": 1, "mbox": "http://patches.dpdk.org/series/23451/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/112620/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/112620/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 11394A0555;\n\tThu, 9 Jun 2022 15:40:25 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id B88BF40689;\n\tThu, 9 Jun 2022 15:40:24 +0200 (CEST)", "from mail-lf1-f50.google.com (mail-lf1-f50.google.com\n [209.85.167.50]) by mails.dpdk.org (Postfix) with ESMTP id B5D4B40220\n for <dev@dpdk.org>; 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a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20210112;\n h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version\n :content-transfer-encoding;\n bh=NSrTtJcoKArHOo2dqh8BeJR0lEfZT56+cNLnUhSdqZw=;\n b=rPSa75DLeFAukNkQ8I3+gdgZwoauYLRbpkQ3j38kN9S2wjAslKEjdQklbhMawY937D\n REiSEBmOSTxuqBUfrKvrRVPqUBLBjm3TLmS7npbw8HKj45dqBMEBR7vHzkXroOfDMZuI\n 8V0h/aLNXF/EipKSfzDfCX5QwYh9d9OW+vpyWdpis3VyenUcUKp9kAapSv6GfAZ3iRjW\n tZys/zhQl3EKQjJ5FQgJbwWnpV1qKdBK3ludThATBSLmjBpxlrxDwXqvd78Lxfcm+sxP\n d9Fy1uYH/Vr3hBWCGpqfWKhn8HxDqGRvpQYzjpC8ukhvLmbrUTnmT7u3dX6PwGNxG3v9\n d0Dw==", "X-Gm-Message-State": "AOAM5305Irj8LEeCnNhr/mul3F45m7aAaTdxWraEMZVR5tHSJulUSWnq\n HAusaUeiT6DW/J4/nSlnWhH4Qw==", "X-Google-Smtp-Source": "\n ABdhPJwvfaH8p8hHcAQvEibGvYBEiH9r0pRqlOE0823MZnjNlIaSvOWwKx/P+z1uxvDpBASpLpCpIQ==", "X-Received": "by 2002:a05:6512:1681:b0:477:a451:131a with SMTP id\n bu1-20020a056512168100b00477a451131amr24160141lfb.318.1654782023214;\n Thu, 09 Jun 2022 06:40:23 -0700 (PDT)", "From": "Stanislaw Kardach <kda@semihalf.com>", "To": "David Marchand <david.marchand@redhat.com>", "Cc": "Stanislaw Kardach <kda@semihalf.com>, dev@dpdk.org, upstream@semihalf.com", "Subject": "[PATCH 1/1] doc: expand description of no-huge and PMD issue", "Date": "Thu, 9 Jun 2022 15:40:11 +0200", "Message-Id": "<20220609134011.725343-1-kda@semihalf.com>", "X-Mailer": "git-send-email 2.30.2", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "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": "Add more details to the description of a known issue of PMDs not being\nusable when --no-huge EAL command line parameter is used. The issue\nactually happens whenever there is a need for physical addresses, even\nwhen there is no PMD attached.\n\nSigned-off-by: Stanislaw Kardach <kda@semihalf.com>\n---\n doc/guides/rel_notes/known_issues.rst | 10 +++++++---\n 1 file changed, 7 insertions(+), 3 deletions(-)", "diff": "diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst\nindex 570550843a..2e0ffbdd93 100644\n--- a/doc/guides/rel_notes/known_issues.rst\n+++ b/doc/guides/rel_notes/known_issues.rst\n@@ -249,11 +249,15 @@ PMD does not work with --no-huge EAL command line parameter\n -----------------------------------------------------------\n \n **Description**:\n- Currently, the DPDK does not store any information about memory allocated by ``malloc()` (for example, NUMA node,\n- physical address), hence PMDs do not work when the ``--no-huge`` command line parameter is supplied to EAL.\n+ Currently, the DPDK does not store any information about memory allocated by ``malloc()`` (for example, NUMA node,\n+ physical address), hence PMDs do not work when the ``--no-huge`` command line parameter is supplied to EAL. This\n+ happens when using non-IOMMU based UIO drivers (i.e. ``igb_uio`` or ``uio_pci_generic``) or when IOVA mode is\n+ explicitly set to use physical addresses (via the ``--iova-mode=pa`` EAL parameter).\n \n **Implication**:\n- Sending and receiving data with PMD will not work.\n+ Sending and receiving data with PMD will not work. Unit tests checking ``--no-huge`` operation will fail if\n+ there is a device bound to the PMD (eal_flags_n_opt_autotest, eal_flags_no_huge_autotest,\n+ eal_flags_vdev_opt_autotest, eal_flags_misc_autotest).\n \n **Resolution/Workaround**:\n Use huge page memory or use VFIO to map devices.\n", "prefixes": [ "1/1" ] }