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GET /api/patches/138026/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 138026,
    "url": "https://patches.dpdk.org/api/patches/138026/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20240306122445.4350-15-shaibran@amazon.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": "<20240306122445.4350-15-shaibran@amazon.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20240306122445.4350-15-shaibran@amazon.com",
    "date": "2024-03-06T12:24:26",
    "name": "[v3,14/33] net/ena/hal: add completion descriptor corruption check",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "aa2fc9fb06157265cd64a86acf9ac2b95a724a1f",
    "submitter": {
        "id": 2930,
        "url": "https://patches.dpdk.org/api/people/2930/?format=api",
        "name": "Brandes, Shai",
        "email": "shaibran@amazon.com"
    },
    "delegate": {
        "id": 319,
        "url": "https://patches.dpdk.org/api/users/319/?format=api",
        "username": "fyigit",
        "first_name": "Ferruh",
        "last_name": "Yigit",
        "email": "ferruh.yigit@amd.com"
    },
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20240306122445.4350-15-shaibran@amazon.com/mbox/",
    "series": [
        {
            "id": 31397,
            "url": "https://patches.dpdk.org/api/series/31397/?format=api",
            "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=31397",
            "date": "2024-03-06T12:24:13",
            "name": "net/ena: v2.9.0 driver release",
            "version": 3,
            "mbox": "https://patches.dpdk.org/series/31397/mbox/"
        }
    ],
    "comments": "https://patches.dpdk.org/api/patches/138026/comments/",
    "check": "success",
    "checks": "https://patches.dpdk.org/api/patches/138026/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 4E60943C5B;\n\tWed,  6 Mar 2024 13:26:39 +0100 (CET)",
            "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id D970842E61;\n\tWed,  6 Mar 2024 13:25:21 +0100 (CET)",
            "from smtp-fw-52004.amazon.com (smtp-fw-52004.amazon.com\n [52.119.213.154])\n by mails.dpdk.org (Postfix) with ESMTP id C1E8D42E52\n for <dev@dpdk.org>; Wed,  6 Mar 2024 13:25:20 +0100 (CET)",
            "from iad12-co-svc-p1-lb1-vlan2.amazon.com (HELO\n smtpout.prod.us-east-1.prod.farcaster.email.amazon.dev) ([10.43.8.2])\n by smtp-border-fw-52004.iad7.amazon.com with\n ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2024 12:25:21 +0000",
            "from EX19MTAEUC001.ant.amazon.com [10.0.10.100:59170]\n by smtpin.naws.eu-west-1.prod.farcaster.email.amazon.dev [10.0.3.166:2525]\n with esmtp (Farcaster)\n id 7085228b-2f84-4b78-874b-59e87824be37; Wed, 6 Mar 2024 12:25:19 +0000 (UTC)",
            "from EX19D007EUA004.ant.amazon.com (10.252.50.76) by\n EX19MTAEUC001.ant.amazon.com (10.252.51.193) with Microsoft SMTP Server\n (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.2.1258.28; Wed, 6 Mar 2024 12:25:19 +0000",
            "from EX19MTAUWA001.ant.amazon.com (10.250.64.204) by\n EX19D007EUA004.ant.amazon.com (10.252.50.76) with Microsoft SMTP Server\n (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.2.1258.28; Wed, 6 Mar 2024 12:25:18 +0000",
            "from HFA15-CG15235BS.amazon.com (10.1.213.21) by\n mail-relay.amazon.com (10.250.64.204) with Microsoft SMTP Server id\n 15.2.1258.28 via Frontend Transport; Wed, 6 Mar 2024 12:25:17 +0000"
        ],
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209;\n t=1709727921; x=1741263921;\n h=from:to:cc:subject:date:message-id:in-reply-to:\n references:mime-version;\n bh=vT9uLUa6L4PATln0gi7ELKwa4TTMi+RHT6LRmHl0bBY=;\n b=dIU/Ea/Ov973/UoQzEiterzShEar75J7coh42pfXp+x8pIH5IlYXjBVU\n ncFsaUozXZwWgeiJqUEAwxlUDxkdx7vkVsPmceqZvKFwPBQGbKb6GHT5y\n I77E8dYhEqR8cfEf5wj5+n5s1dYdQd+dJ70H7xMZaXoUBgcxTwf9NM5Rt g=;",
        "X-IronPort-AV": "E=Sophos;i=\"6.06,208,1705363200\"; d=\"scan'208\";a=\"189623252\"",
        "X-Farcaster-Flow-ID": "7085228b-2f84-4b78-874b-59e87824be37",
        "From": "<shaibran@amazon.com>",
        "To": "<ferruh.yigit@amd.com>",
        "CC": "<dev@dpdk.org>, Shai Brandes <shaibran@amazon.com>",
        "Subject": "[PATCH v3 14/33] net/ena/hal: add completion descriptor corruption\n check",
        "Date": "Wed, 6 Mar 2024 14:24:26 +0200",
        "Message-ID": "<20240306122445.4350-15-shaibran@amazon.com>",
        "X-Mailer": "git-send-email 2.17.1",
        "In-Reply-To": "<20240306122445.4350-1-shaibran@amazon.com>",
        "References": "<20240306122445.4350-1-shaibran@amazon.com>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain",
        "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": "From: Shai Brandes <shaibran@amazon.com>\n\nAdding a check of the MBZ (Must Be Zero) fields in the\nincoming tx and rx completion descriptors in order to\nidentify corrupted descriptors.\n\nSigned-off-by: Shai Brandes <shaibran@amazon.com>\nReviewed-by: Amit Bernstein <amitbern@amazon.com>\n---\n drivers/net/ena/hal/ena_eth_com.c | 13 +++++++++++--\n drivers/net/ena/hal/ena_eth_com.h | 14 +++++++++++++-\n 2 files changed, 24 insertions(+), 3 deletions(-)",
    "diff": "diff --git a/drivers/net/ena/hal/ena_eth_com.c b/drivers/net/ena/hal/ena_eth_com.c\nindex dc2935a53e..988fa013a7 100644\n--- a/drivers/net/ena/hal/ena_eth_com.c\n+++ b/drivers/net/ena/hal/ena_eth_com.c\n@@ -237,6 +237,7 @@ static int ena_com_cdesc_rx_pkt_get(struct ena_com_io_cq *io_cq,\n \t\t\t\t    u16 *first_cdesc_idx,\n \t\t\t\t    u16 *num_descs)\n {\n+\tstruct ena_com_dev *dev = ena_com_io_cq_to_ena_dev(io_cq);\n \tu16 count = io_cq->cur_rx_pkt_cdesc_count, head_masked;\n \tstruct ena_eth_io_rx_cdesc_base *cdesc;\n \tu32 last = 0;\n@@ -252,13 +253,21 @@ static int ena_com_cdesc_rx_pkt_get(struct ena_com_io_cq *io_cq,\n \t\tena_com_cq_inc_head(io_cq);\n \t\tif (unlikely((status & ENA_ETH_IO_RX_CDESC_BASE_FIRST_MASK) >>\n \t\t    ENA_ETH_IO_RX_CDESC_BASE_FIRST_SHIFT && count != 0)) {\n-\t\t\tstruct ena_com_dev *dev = ena_com_io_cq_to_ena_dev(io_cq);\n-\n \t\t\tena_trc_err(dev,\n \t\t\t\t    \"First bit is on in descriptor #%d on q_id: %d, req_id: %u\\n\",\n \t\t\t\t    count, io_cq->qid, cdesc->req_id);\n \t\t\treturn ENA_COM_FAULT;\n \t\t}\n+\n+\t\tif (unlikely((status & (ENA_ETH_IO_RX_CDESC_BASE_MBZ7_MASK |\n+\t\t\t\t\tENA_ETH_IO_RX_CDESC_BASE_MBZ17_MASK)) &&\n+\t\t\t      ena_com_get_cap(dev, ENA_ADMIN_CDESC_MBZ))) {\n+\t\t\tena_trc_err(dev,\n+\t\t\t\t    \"Corrupted RX descriptor #%d on q_id: %d, req_id: %u\\n\",\n+\t\t\t\t    count, io_cq->qid, cdesc->req_id);\n+\t\t\treturn ENA_COM_FAULT;\n+\t\t}\n+\n \t\tcount++;\n \t\tlast = (status & ENA_ETH_IO_RX_CDESC_BASE_LAST_MASK) >>\n \t\t\tENA_ETH_IO_RX_CDESC_BASE_LAST_SHIFT;\ndiff --git a/drivers/net/ena/hal/ena_eth_com.h b/drivers/net/ena/hal/ena_eth_com.h\nindex 6a7c17f84f..2fac10e678 100644\n--- a/drivers/net/ena/hal/ena_eth_com.h\n+++ b/drivers/net/ena/hal/ena_eth_com.h\n@@ -204,9 +204,11 @@ static inline void ena_com_cq_inc_head(struct ena_com_io_cq *io_cq)\n static inline int ena_com_tx_comp_req_id_get(struct ena_com_io_cq *io_cq,\n \t\t\t\t\t     u16 *req_id)\n {\n+\tstruct ena_com_dev *dev = ena_com_io_cq_to_ena_dev(io_cq);\n \tu8 expected_phase, cdesc_phase;\n \tstruct ena_eth_io_tx_cdesc *cdesc;\n \tu16 masked_head;\n+\tu8 flags;\n \n \tmasked_head = io_cq->head & (io_cq->q_depth - 1);\n \texpected_phase = io_cq->phase;\n@@ -215,14 +217,24 @@ static inline int ena_com_tx_comp_req_id_get(struct ena_com_io_cq *io_cq,\n \t\t((uintptr_t)io_cq->cdesc_addr.virt_addr +\n \t\t(masked_head * io_cq->cdesc_entry_size_in_bytes));\n \n+\tflags = READ_ONCE8(cdesc->flags);\n+\n \t/* When the current completion descriptor phase isn't the same as the\n \t * expected, it mean that the device still didn't update\n \t * this completion.\n \t */\n-\tcdesc_phase = READ_ONCE8(cdesc->flags) & ENA_ETH_IO_TX_CDESC_PHASE_MASK;\n+\tcdesc_phase = flags & ENA_ETH_IO_TX_CDESC_PHASE_MASK;\n \tif (cdesc_phase != expected_phase)\n \t\treturn ENA_COM_TRY_AGAIN;\n \n+\tif (unlikely((flags & ENA_ETH_IO_TX_CDESC_MBZ6_MASK) &&\n+\t\t      ena_com_get_cap(dev, ENA_ADMIN_CDESC_MBZ))) {\n+\t\tena_trc_err(dev,\n+\t\t\t    \"Corrupted TX descriptor on q_id: %d, req_id: %u\\n\",\n+\t\t\t    io_cq->qid, cdesc->req_id);\n+\t\treturn ENA_COM_FAULT;\n+\t}\n+\n \tdma_rmb();\n \n \t*req_id = READ_ONCE16(cdesc->req_id);\n",
    "prefixes": [
        "v3",
        "14/33"
    ]
}