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{
    "id": 16996,
    "url": "https://patches.dpdk.org/api/patches/16996/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1478796410-15004-1-git-send-email-fiona.trahe@intel.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": "<1478796410-15004-1-git-send-email-fiona.trahe@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1478796410-15004-1-git-send-email-fiona.trahe@intel.com",
    "date": "2016-11-10T16:46:50",
    "name": "[dpdk-dev] doc: add known issue on QAT PMD into release notes",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "2b3005862b347bdbc888518d335987390c7f4ce2",
    "submitter": {
        "id": 423,
        "url": "https://patches.dpdk.org/api/people/423/?format=api",
        "name": "Fiona Trahe",
        "email": "fiona.trahe@intel.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/1478796410-15004-1-git-send-email-fiona.trahe@intel.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/16996/comments/",
    "check": "warning",
    "checks": "https://patches.dpdk.org/api/patches/16996/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 1391BD4D6;\n\tThu, 10 Nov 2016 17:48:28 +0100 (CET)",
            "from mga01.intel.com (mga01.intel.com [192.55.52.88])\n\tby dpdk.org (Postfix) with ESMTP id 1C1425599\n\tfor <dev@dpdk.org>; Thu, 10 Nov 2016 17:48:26 +0100 (CET)",
            "from fmsmga006.fm.intel.com ([10.253.24.20])\n\tby fmsmga101.fm.intel.com with ESMTP; 10 Nov 2016 08:46:55 -0800",
            "from sivswdev01.ir.intel.com (HELO localhost.localdomain)\n\t([10.237.217.45])\n\tby fmsmga006.fm.intel.com with ESMTP; 10 Nov 2016 08:46:54 -0800"
        ],
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.31,619,1473145200\"; d=\"scan'208\";a=\"29766745\"",
        "From": "Fiona Trahe <fiona.trahe@intel.com>",
        "To": "dev@dpdk.org",
        "Cc": "pablo.de.lara.guarch@intel.com, fiona.trahe@intel.com,\n\tjohn.griffin@intel.com",
        "Date": "Thu, 10 Nov 2016 16:46:50 +0000",
        "Message-Id": "<1478796410-15004-1-git-send-email-fiona.trahe@intel.com>",
        "X-Mailer": "git-send-email 1.7.0.7",
        "Subject": "[dpdk-dev] [PATCH] doc: add known issue on QAT PMD into release\n\tnotes",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Issue is with the digest appended feature on QAT PMD.\nA workaround is also documented.\n\nSigned-off-by: Fiona Trahe <fiona.trahe@intel.com>\n---\n doc/guides/rel_notes/release_16_11.rst | 13 ++++++++++++-\n 1 file changed, 12 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/doc/guides/rel_notes/release_16_11.rst b/doc/guides/rel_notes/release_16_11.rst\nindex 365b5a3..5f925b5 100644\n--- a/doc/guides/rel_notes/release_16_11.rst\n+++ b/doc/guides/rel_notes/release_16_11.rst\n@@ -213,7 +213,18 @@ Known Issues\n   Therefore, in order to use L3fwd-power, vector mode should be disabled\n   from the config file.\n \n-\n+* **Digest address must be supplied for crypto auth operation on QAT PMD.**\n+\n+  The cryptodev API specifies that if the rte_crypto_sym_op.digest.data field,\n+  and by inference the digest.phys_addr field which points to the same location,\n+  is not set for an auth operation the driver is to understand that the digest\n+  result is located immediately following the region over which the digest is\n+  computed. The QAT PMD doesn't correctly handle this case and reads and writes\n+  to an incorrect location. \n+  \n+  Callers can workaround this by always supplying the digest virtual and\n+  physical address fields in the rte_crypto_sym_op for an auth operation.\n+   \n API Changes\n -----------\n \n",
    "prefixes": [
        "dpdk-dev"
    ]
}