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GET /api/patches/814935/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 814935,
    "url": "http://patchwork.ozlabs.org/api/patches/814935/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/1505742050-5697-15-git-send-email-bmeng.cn@gmail.com/",
    "project": {
        "id": 18,
        "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api",
        "name": "U-Boot",
        "link_name": "uboot",
        "list_id": "u-boot.lists.denx.de",
        "list_email": "u-boot@lists.denx.de",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<1505742050-5697-15-git-send-email-bmeng.cn@gmail.com>",
    "list_archive_url": null,
    "date": "2017-09-18T13:40:50",
    "name": "[U-Boot,14/14] usb: xhci: Set 'Average TRB Length' to 8 for control endpoints",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "ec913fad56c655a85161131e393265c58b2aaf8f",
    "submitter": {
        "id": 64981,
        "url": "http://patchwork.ozlabs.org/api/people/64981/?format=api",
        "name": "Bin Meng",
        "email": "bmeng.cn@gmail.com"
    },
    "delegate": {
        "id": 1699,
        "url": "http://patchwork.ozlabs.org/api/users/1699/?format=api",
        "username": "marex",
        "first_name": "Marek",
        "last_name": "Vasut",
        "email": "marek.vasut@gmail.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/1505742050-5697-15-git-send-email-bmeng.cn@gmail.com/mbox/",
    "series": [
        {
            "id": 3647,
            "url": "http://patchwork.ozlabs.org/api/series/3647/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=3647",
            "date": "2017-09-18T13:40:36",
            "name": "usb: xhci: Add interrupt transfer support and full speed device support",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/3647/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/814935/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/814935/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        ],
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        "X-Received": "by 10.107.191.3 with SMTP id p3mr9897021iof.177.1505741808718;\n\tMon, 18 Sep 2017 06:36:48 -0700 (PDT)",
        "From": "Bin Meng <bmeng.cn@gmail.com>",
        "To": "Marek Vasut <marex@denx.de>, U-Boot Mailing List <u-boot@lists.denx.de>",
        "Date": "Mon, 18 Sep 2017 06:40:50 -0700",
        "Message-Id": "<1505742050-5697-15-git-send-email-bmeng.cn@gmail.com>",
        "X-Mailer": "git-send-email 1.7.9.5",
        "In-Reply-To": "<1505742050-5697-1-git-send-email-bmeng.cn@gmail.com>",
        "References": "<1505742050-5697-1-git-send-email-bmeng.cn@gmail.com>",
        "Cc": "Stefan Roese <sr@denx.de>",
        "Subject": "[U-Boot] [PATCH 14/14] usb: xhci: Set 'Average TRB Length' to 8 for\n\tcontrol endpoints",
        "X-BeenThere": "u-boot@lists.denx.de",
        "X-Mailman-Version": "2.1.18",
        "Precedence": "list",
        "List-Id": "U-Boot discussion <u-boot.lists.denx.de>",
        "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=unsubscribe>",
        "List-Archive": "<http://lists.denx.de/pipermail/u-boot/>",
        "List-Post": "<mailto:u-boot@lists.denx.de>",
        "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>",
        "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=subscribe>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "base64",
        "Errors-To": "u-boot-bounces@lists.denx.de",
        "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>"
    },
    "content": "Update the codes to conform with xHCI spec chapter 6.2.3.\n\nSigned-off-by: Bin Meng <bmeng.cn@gmail.com>\n\n---\n\n drivers/usb/host/xhci-mem.c | 6 ++++++\n drivers/usb/host/xhci.c     | 6 ++++++\n 2 files changed, 12 insertions(+)",
    "diff": "diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c\nindex 84982a9..0582a9b 100644\n--- a/drivers/usb/host/xhci-mem.c\n+++ b/drivers/usb/host/xhci-mem.c\n@@ -850,6 +850,12 @@ void xhci_setup_addressable_virt_dev(struct xhci_ctrl *ctrl,\n \ttrb_64 = (uintptr_t)virt_dev->eps[0].ring->first_seg->trbs;\n \tep0_ctx->deq = cpu_to_le64(trb_64 | virt_dev->eps[0].ring->cycle_state);\n \n+\t/*\n+\t * xHCI spec 6.2.3:\n+\t * software shall set 'Average TRB Length' to 8 for control endpoints.\n+\t */\n+\tep0_ctx->tx_info = cpu_to_le32(EP_AVG_TRB_LENGTH(8));\n+\n \t/* Steps 7 and 8 were done in xhci_alloc_virt_device() */\n \n \txhci_flush_cache((uintptr_t)ep0_ctx, sizeof(struct xhci_ep_ctx));\ndiff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c\nindex 93737b0..4673738 100644\n--- a/drivers/usb/host/xhci.c\n+++ b/drivers/usb/host/xhci.c\n@@ -601,6 +601,12 @@ static int xhci_set_configuration(struct usb_device *udev)\n \t\tep_ctx[ep_index]->deq = cpu_to_le64(trb_64 |\n \t\t\t\tvirt_dev->eps[ep_index].ring->cycle_state);\n \n+\t\t/*\n+\t\t * xHCI spec 6.2.3:\n+\t\t * 'Average TRB Length' should be 8 for control endpoints.\n+\t\t */\n+\t\tif (usb_endpoint_xfer_control(endpt_desc))\n+\t\t\tavg_trb_len = 8;\n \t\tep_ctx[ep_index]->tx_info =\n \t\t\tcpu_to_le32(EP_MAX_ESIT_PAYLOAD_LO(max_esit_payload) |\n \t\t\tEP_AVG_TRB_LENGTH(avg_trb_len));\n",
    "prefixes": [
        "U-Boot",
        "14/14"
    ]
}