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GET /api/1.1/patches/2224980/?format=api
HTTP 200 OK
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{
    "id": 2224980,
    "url": "http://patchwork.ozlabs.org/api/1.1/patches/2224980/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260420-write_booster-v6-5-8c49acba03d4@samsung.com/",
    "project": {
        "id": 14,
        "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api",
        "name": "QEMU Development",
        "link_name": "qemu-devel",
        "list_id": "qemu-devel.nongnu.org",
        "list_email": "qemu-devel@nongnu.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20260420-write_booster-v6-5-8c49acba03d4@samsung.com>",
    "date": "2026-04-20T05:28:53",
    "name": "[v6,5/5] tests/qtest: Add UFS Write Booster QTest",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "4b3464975d4b3155c0150e23e7e09735fa711f37",
    "submitter": {
        "id": 93039,
        "url": "http://patchwork.ozlabs.org/api/1.1/people/93039/?format=api",
        "name": "Jaemyung Lee",
        "email": "ldc.jml@gmail.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260420-write_booster-v6-5-8c49acba03d4@samsung.com/mbox/",
    "series": [
        {
            "id": 500554,
            "url": "http://patchwork.ozlabs.org/api/1.1/series/500554/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500554",
            "date": "2026-04-20T05:28:48",
            "name": "hw/ufs: Add Write Booster Support on UFS",
            "version": 6,
            "mbox": "http://patchwork.ozlabs.org/series/500554/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2224980/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2224980/checks/",
    "tags": {},
    "headers": {
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        "From": "Jaemyung Lee <ldc.jml@gmail.com>",
        "X-Google-Original-From": "Jaemyung Lee <jaemyung.lee@samsung.com>",
        "Date": "Mon, 20 Apr 2026 14:28:53 +0900",
        "Subject": "[PATCH v6 5/5] tests/qtest: Add UFS Write Booster QTest",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "7bit",
        "Message-Id": "<20260420-write_booster-v6-5-8c49acba03d4@samsung.com>",
        "References": "<20260420-write_booster-v6-0-8c49acba03d4@samsung.com>",
        "In-Reply-To": "<20260420-write_booster-v6-0-8c49acba03d4@samsung.com>",
        "To": "qemu-devel@nongnu.org",
        "Cc": "Jeuk Kim <jeuk20.kim@samsung.com>, Kevin Wolf <kwolf@redhat.com>,\n Hanna Reitz <hreitz@redhat.com>, qemu-block@nongnu.org,\n Fabiano Rosas <farosas@suse.de>, Laurent Vivier <lvivier@redhat.com>,\n Paolo Bonzini <pbonzini@redhat.com>,\n Jaemyung Lee <jaemyung.lee@samsung.com>",
        "X-Mailer": "b4 0.14.2",
        "X-Developer-Signature": "v=1; a=ed25519-sha256; t=1776662940; l=8918;\n i=jaemyung.lee@samsung.com; s=20260402; h=from:subject:message-id;\n bh=rU67KxRcVLL6ZVBVhiBQ/INRn8llY3KXffQmzbO047E=;\n b=f8YXU4vN/4n731hESBmuMmgJJ0TK+3IzIUik2wf7twoNcpfLGNC4/GnsbAsHjkI/ybLL3v0/4\n O05I4HXQ0nUA3Ou/w5OwT4y75EuKcS/gkqwdFGv6r0Uj/XLGq8F3rSt",
        "X-Developer-Key": "i=jaemyung.lee@samsung.com; a=ed25519;\n pk=bZPd7A/kteUO62FfUM6IrI1LuBPe5QrcqfvsitM1ZjE=",
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        "Precedence": "list",
        "List-Id": "qemu development <qemu-devel.nongnu.org>",
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    },
    "content": "It adds 'wb-init' and 'wb-read-write' TCs into tests/qtest/ufs-test.c.\n'wb-init' tests that the WB support is properly initialized with UFS\ndevice and 'wb-read-write' tests that WB can be enabled and WRITE I/O\ncan be handled/buffered as a WB command.\n\nSigned-off-by: Jaemyung Lee <jaemyung.lee@samsung.com>\n---\n tests/qtest/ufs-test.c | 176 +++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 176 insertions(+)",
    "diff": "diff --git a/tests/qtest/ufs-test.c b/tests/qtest/ufs-test.c\nindex 7f999441552a105987aaaf8e2b976f4a05f953ed..253fea27a5e52619f433d15075500a566eddeccc 100644\n--- a/tests/qtest/ufs-test.c\n+++ b/tests/qtest/ufs-test.c\n@@ -1182,6 +1182,173 @@ static void ufstest_query_desc_request(void *obj, void *data,\n     ufs_exit(ufs, alloc);\n }\n \n+static void ufstest_wb_init(void *obj, void *data, QGuestAllocator *alloc)\n+{\n+    QUfs *ufs = obj;\n+    enum UtpOcsCodes ocs;\n+    UtpUpiuRsp rsp_upiu;\n+    uint8_t *desc;\n+    uint32_t value;\n+\n+    ufs_init(ufs, alloc);\n+\n+    /* Read Device Descriptor */\n+    ocs = ufs_send_query(ufs, UFS_UPIU_QUERY_FUNC_STANDARD_READ_REQUEST,\n+                         UFS_UPIU_QUERY_OPCODE_READ_DESC,\n+                         UFS_QUERY_DESC_IDN_DEVICE, 0, 0, 0, &rsp_upiu);\n+    g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.header.response, ==, UFS_COMMAND_RESULT_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.qr.opcode, ==, UFS_UPIU_QUERY_OPCODE_READ_DESC);\n+    g_assert_cmpuint(rsp_upiu.qr.idn, ==, UFS_QUERY_DESC_IDN_DEVICE);\n+    g_assert_cmpuint(rsp_upiu.qr.data[0], ==, sizeof(DeviceDescriptor));\n+    g_assert_cmpuint(rsp_upiu.qr.data[1], ==, UFS_QUERY_DESC_IDN_DEVICE);\n+\n+    /* Check Write Booster Supportability */\n+    desc = rsp_upiu.qr.data;\n+\n+    value = *(uint16_t *)(desc + UFS_DEVICE_DESC_PARAM_EXT_WB_SUP);\n+    value = be16_to_cpu(value);\n+    g_assert_cmpuint(value, ==, WB_RESIZE | WB_FIFO | WB_PINNED);\n+\n+    value = *(uint32_t *)(desc + UFS_DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP);\n+    value = be32_to_cpu(value);\n+    g_assert_cmpuint(value & UFS_DEV_WB_SUPPORT, ==, UFS_DEV_WB_SUPPORT);\n+\n+    /* Read Geometry Descriptor */\n+    ocs = ufs_send_query(ufs, UFS_UPIU_QUERY_FUNC_STANDARD_READ_REQUEST,\n+                         UFS_UPIU_QUERY_OPCODE_READ_DESC,\n+                         UFS_QUERY_DESC_IDN_GEOMETRY, 0, 0, 0, &rsp_upiu);\n+    g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.header.response, ==, UFS_COMMAND_RESULT_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.qr.data[0], ==, sizeof(GeometryDescriptor));\n+    g_assert_cmpuint(rsp_upiu.qr.data[1], ==, UFS_QUERY_DESC_IDN_GEOMETRY);\n+\n+    /* Check Write Booster Configuration */\n+    desc = rsp_upiu.qr.data;\n+\n+    value = *(uint32_t *)(desc + UFS_GEOMETRY_DESC_PARAM_WB_MAX_ALLOC_UNITS);\n+    value = be32_to_cpu(value);\n+    g_assert_cmpuint(value, ==, 1024);\n+\n+    value = desc[UFS_GEOMETRY_DESC_PARAM_WB_MAX_WB_LUNS];\n+    g_assert_cmpuint(value, ==, 1);\n+\n+    value = desc[UFS_GEOMETRY_DESC_PARAM_WB_BUFF_CAP_ADJ];\n+    g_assert_cmpuint(value, ==, 3);\n+\n+    value = desc[UFS_GEOMETRY_DESC_PARAM_WB_SUP_RED_TYPE];\n+    g_assert_cmpuint(value, ==, 1);\n+\n+    value = desc[UFS_GEOMETRY_DESC_PARAM_WB_SUP_WB_TYPE];\n+    g_assert_cmpuint(value, ==, 1);\n+\n+    ufs_exit(ufs, alloc);\n+}\n+\n+static void ufstest_wb_read_write(void *obj, void *data, QGuestAllocator *alloc)\n+{\n+    QUfs *ufs = obj;\n+    uint8_t read_buf[4096] = { 0 };\n+    uint8_t write_buf[4096] = { 0 };\n+    const uint8_t read_capacity_cdb[UFS_CDB_SIZE] = {\n+        /* allocation length 4096 */\n+        SERVICE_ACTION_IN_16,\n+        SAI_READ_CAPACITY_16,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x00,\n+        0x10,\n+        0x00,\n+        0x00,\n+        0x00\n+    };\n+    const uint8_t request_sense_cdb[UFS_CDB_SIZE] = {\n+        REQUEST_SENSE,\n+    };\n+    const uint8_t write_cdb[UFS_CDB_SIZE] = {\n+        /* WRITE(10) to LBA 0, transfer length 1 */\n+        WRITE_10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00\n+    };\n+    uint32_t block_size;\n+    enum UtpOcsCodes ocs;\n+    UtpUpiuRsp rsp_upiu;\n+    const int test_lun = 1;\n+    uint64_t end_time;\n+\n+    ufs_init(ufs, alloc);\n+\n+    /* Clear Unit Attention */\n+    ocs = ufs_send_scsi_command(ufs, test_lun, request_sense_cdb, NULL, 0,\n+                                read_buf, sizeof(read_buf), &rsp_upiu);\n+    g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.header.scsi_status, ==, CHECK_CONDITION);\n+\n+    /* Read capacity */\n+    ocs = ufs_send_scsi_command(ufs, test_lun, read_capacity_cdb, NULL, 0,\n+                                read_buf, sizeof(read_buf), &rsp_upiu);\n+    g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.header.scsi_status, ==,\n+                     UFS_COMMAND_RESULT_SUCCESS);\n+    block_size = ldl_be_p(&read_buf[8]);\n+    g_assert_cmpuint(block_size, ==, 4096);\n+\n+    /* Check available buffer size */\n+    ocs = ufs_send_query(ufs, UFS_UPIU_QUERY_FUNC_STANDARD_READ_REQUEST,\n+                         UFS_UPIU_QUERY_OPCODE_READ_ATTR,\n+                         UFS_QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE, 0, 0, 0, &rsp_upiu);\n+    g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.header.response, ==, UFS_COMMAND_RESULT_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.qr.opcode, ==, UFS_UPIU_QUERY_OPCODE_READ_ATTR);\n+    g_assert_cmpuint(rsp_upiu.qr.idn, ==, UFS_QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE);\n+    g_assert_cmpuint(rsp_upiu.qr.value, ==, cpu_to_be32(0xA));\n+\n+    /* Enable WB */\n+    ocs = ufs_send_query(ufs, UFS_UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST,\n+                         UFS_UPIU_QUERY_OPCODE_SET_FLAG,\n+                         UFS_QUERY_FLAG_IDN_WB_EN, 0, 0, 0,\n+                         &rsp_upiu);\n+    g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.header.response, ==, UFS_COMMAND_RESULT_SUCCESS);\n+    g_assert_cmpuint(rsp_upiu.qr.value, ==, be32_to_cpu(1));\n+\n+    /* Write data */\n+    for (int i = 0; i < 256; i++) {\n+        memset(write_buf, 0xab, block_size);\n+        ocs = ufs_send_scsi_command(ufs, test_lun, write_cdb, write_buf,\n+                                    block_size, NULL, 0, &rsp_upiu);\n+        g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+        g_assert_cmpuint(rsp_upiu.header.scsi_status, ==,\n+                         UFS_COMMAND_RESULT_SUCCESS);\n+    }\n+\n+    end_time = g_get_monotonic_time() + TIMEOUT_SECONDS * G_TIME_SPAN_SECOND;\n+    do {\n+        qtest_clock_step(ufs->dev.bus->qts, 100);\n+\n+        /* Check available buffer size */\n+        ocs = ufs_send_query(ufs, UFS_UPIU_QUERY_FUNC_STANDARD_READ_REQUEST,\n+                             UFS_UPIU_QUERY_OPCODE_READ_ATTR,\n+                             UFS_QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE, 0, 0, 0,\n+                             &rsp_upiu);\n+        g_assert_cmpuint(ocs, ==, UFS_OCS_SUCCESS);\n+        g_assert_cmpuint(rsp_upiu.header.response, ==, UFS_COMMAND_RESULT_SUCCESS);\n+        g_assert_cmpuint(rsp_upiu.qr.opcode, ==, UFS_UPIU_QUERY_OPCODE_READ_ATTR);\n+        g_assert_cmpuint(rsp_upiu.qr.idn, ==, UFS_QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE);\n+    } while (rsp_upiu.qr.value == cpu_to_be32(0xA) && g_get_monotonic_time() < end_time);\n+\n+    /* Check available buffer size */\n+    g_assert_cmpuint(rsp_upiu.qr.value, ==, cpu_to_be32(0x9));\n+\n+    ufs_exit(ufs, alloc);\n+}\n+\n static void drive_destroy(void *path)\n {\n     unlink(path);\n@@ -1234,6 +1401,13 @@ static void ufs_register_nodes(void)\n                                           .edge.extra_device_opts =\n                                               \"mcq=true,mcq-maxq=1\" };\n \n+    QOSGraphTestOptions wb_test_opts = { .before = ufs_blk_test_setup,\n+                                         .edge.extra_device_opts =\n+                                             \"mcq=false,nutrs=32,nutmrs=8,\"\n+                                             \"wb-max-size=1024,wb-min-size=256,\"\n+                                             \"wb-max-lus=1,wb-cap-adj-fac=3,\"\n+                                             \"wb-reduction=1\" };\n+\n     add_qpci_address(&edge_opts, &(QPCIAddress){ .devfn = QPCI_DEVFN(4, 0) });\n \n     qos_node_create_driver(\"ufs\", ufs_create);\n@@ -1262,6 +1436,8 @@ static void ufs_register_nodes(void)\n                  &io_test_opts);\n     qos_add_test(\"query-desciptor\", \"ufs\", ufstest_query_desc_request,\n                  &io_test_opts);\n+    qos_add_test(\"wb-init\", \"ufs\", ufstest_wb_init, &wb_test_opts);\n+    qos_add_test(\"wb-read-write\", \"ufs\", ufstest_wb_read_write, &wb_test_opts);\n }\n \n libqos_init(ufs_register_nodes);\n",
    "prefixes": [
        "v6",
        "5/5"
    ]
}