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{
    "id": 97040,
    "url": "http://patchwork.dpdk.org/api/patches/97040/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20210818090755.2419483-3-dkozlyuk@nvidia.com/",
    "project": {
        "id": 1,
        "url": "http://patchwork.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",
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    "msgid": "<20210818090755.2419483-3-dkozlyuk@nvidia.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20210818090755.2419483-3-dkozlyuk@nvidia.com",
    "date": "2021-08-18T09:07:53",
    "name": "[2/4] mempool: add non-IO flag",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "21ada81b90a4c3d06b1b2a9cc37ee2c93c56d687",
    "submitter": {
        "id": 2248,
        "url": "http://patchwork.dpdk.org/api/people/2248/?format=api",
        "name": "Dmitry Kozlyuk",
        "email": "dkozlyuk@nvidia.com"
    },
    "delegate": {
        "id": 1,
        "url": "http://patchwork.dpdk.org/api/users/1/?format=api",
        "username": "tmonjalo",
        "first_name": "Thomas",
        "last_name": "Monjalon",
        "email": "thomas@monjalon.net"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20210818090755.2419483-3-dkozlyuk@nvidia.com/mbox/",
    "series": [
        {
            "id": 18324,
            "url": "http://patchwork.dpdk.org/api/series/18324/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=18324",
            "date": "2021-08-18T09:07:51",
            "name": "net/mlx5: implicit mempool registration",
            "version": 1,
            "mbox": "http://patchwork.dpdk.org/series/18324/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/patches/97040/comments/",
    "check": "warning",
    "checks": "http://patchwork.dpdk.org/api/patches/97040/checks/",
    "tags": {},
    "related": [],
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        "From": "Dmitry Kozlyuk <dkozlyuk@nvidia.com>",
        "To": "<dev@dpdk.org>",
        "CC": "Matan Azrad <matan@nvidia.com>, Olivier Matz <olivier.matz@6wind.com>,\n Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>",
        "Date": "Wed, 18 Aug 2021 12:07:53 +0300",
        "Message-ID": "<20210818090755.2419483-3-dkozlyuk@nvidia.com>",
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        "Subject": "[dpdk-dev] [PATCH 2/4] mempool: add non-IO flag",
        "X-BeenThere": "dev@dpdk.org",
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    },
    "content": "Mempool is a generic allocator that is not necessarily used for device\nIO operations and its memory for DMA. Add MEMPOOL_F_NON_IO flag to mark\nsuch mempools.\n\nSigned-off-by: Dmitry Kozlyuk <dkozlyuk@nvidia.com>\nAcked-by: Matan Azrad <matan@nvidia.com>\n---\n doc/guides/rel_notes/release_21_11.rst | 3 +++\n lib/mempool/rte_mempool.h              | 4 ++++\n 2 files changed, 7 insertions(+)",
    "diff": "diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst\nindex d707a554ef..dc9b98b862 100644\n--- a/doc/guides/rel_notes/release_21_11.rst\n+++ b/doc/guides/rel_notes/release_21_11.rst\n@@ -84,6 +84,9 @@ API Changes\n    Also, make sure to start the actual text at the margin.\n    =======================================================\n \n+* mempool: Added ``MEMPOOL_F_NON_IO`` flag to give a hint to DPDK components\n+  that objects from this pool will not be used for device IO (e.g. DMA).\n+\n \n ABI Changes\n -----------\ndiff --git a/lib/mempool/rte_mempool.h b/lib/mempool/rte_mempool.h\nindex 1e9b8f0229..7f0657ab16 100644\n--- a/lib/mempool/rte_mempool.h\n+++ b/lib/mempool/rte_mempool.h\n@@ -263,6 +263,7 @@ struct rte_mempool {\n #define MEMPOOL_F_SC_GET         0x0008 /**< Default get is \"single-consumer\".*/\n #define MEMPOOL_F_POOL_CREATED   0x0010 /**< Internal: pool is created. */\n #define MEMPOOL_F_NO_IOVA_CONTIG 0x0020 /**< Don't need IOVA contiguous objs. */\n+#define MEMPOOL_F_NON_IO         0x0040 /**< Not used for device IO (DMA). */\n \n /**\n  * @internal When debug is enabled, store some statistics.\n@@ -992,6 +993,9 @@ typedef void (rte_mempool_ctor_t)(struct rte_mempool *, void *);\n  *     \"single-consumer\". Otherwise, it is \"multi-consumers\".\n  *   - MEMPOOL_F_NO_IOVA_CONTIG: If set, allocated objects won't\n  *     necessarily be contiguous in IO memory.\n+ *   - MEMPOOL_F_NO_IO: If set, the mempool is considered to be\n+ *     never used for device IO, i.e. DMA operations,\n+ *     which may affect some PMD behavior.\n  * @return\n  *   The pointer to the new allocated mempool, on success. NULL on error\n  *   with rte_errno set appropriately. Possible rte_errno values include:\n",
    "prefixes": [
        "2/4"
    ]
}