get:
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patch:
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put:
Update a patch.

GET /api/1.0/patches/2175222/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2175222,
    "url": "http://patchwork.ozlabs.org/api/1.0/patches/2175222/?format=api",
    "project": {
        "id": 28,
        "url": "http://patchwork.ozlabs.org/api/1.0/projects/28/?format=api",
        "name": "Linux PCI development",
        "link_name": "linux-pci",
        "list_id": "linux-pci.vger.kernel.org",
        "list_email": "linux-pci@vger.kernel.org",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null
    },
    "msgid": "<20251217151609.3162665-34-den@valinux.co.jp>",
    "date": "2025-12-17T15:16:07",
    "name": "[RFC,v3,33/35] NTB: epf: Add an additional memory window (MW2) barno mapping on Renesas R-Car",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "35976b32ce29d1ba3fbdb6d6a2830b493468bdbf",
    "submitter": {
        "id": 91573,
        "url": "http://patchwork.ozlabs.org/api/1.0/people/91573/?format=api",
        "name": "Koichiro Den",
        "email": "den@valinux.co.jp"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20251217151609.3162665-34-den@valinux.co.jp/mbox/",
    "series": [
        {
            "id": 485709,
            "url": "http://patchwork.ozlabs.org/api/1.0/series/485709/?format=api",
            "date": "2025-12-17T15:15:53",
            "name": "NTB transport backed by endpoint DW eDMA",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/485709/mbox/"
        }
    ],
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2175222/checks/",
    "tags": {},
    "headers": {
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        "From": "Koichiro Den <den@valinux.co.jp>",
        "To": "Frank.Li@nxp.com,\n\tdave.jiang@intel.com,\n\tntb@lists.linux.dev,\n\tlinux-pci@vger.kernel.org,\n\tdmaengine@vger.kernel.org,\n\tlinux-renesas-soc@vger.kernel.org,\n\tnetdev@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org",
        "Cc": "mani@kernel.org,\n\tkwilczynski@kernel.org,\n\tkishon@kernel.org,\n\tbhelgaas@google.com,\n\tcorbet@lwn.net,\n\tgeert+renesas@glider.be,\n\tmagnus.damm@gmail.com,\n\trobh@kernel.org,\n\tkrzk+dt@kernel.org,\n\tconor+dt@kernel.org,\n\tvkoul@kernel.org,\n\tjoro@8bytes.org,\n\twill@kernel.org,\n\trobin.murphy@arm.com,\n\tjdmason@kudzu.us,\n\tallenbh@gmail.com,\n\tandrew+netdev@lunn.ch,\n\tdavem@davemloft.net,\n\tedumazet@google.com,\n\tkuba@kernel.org,\n\tpabeni@redhat.com,\n\tBasavaraj.Natikar@amd.com,\n\tShyam-sundar.S-k@amd.com,\n\tkurt.schwemmer@microsemi.com,\n\tlogang@deltatee.com,\n\tjingoohan1@gmail.com,\n\tlpieralisi@kernel.org,\n\tutkarsh02t@gmail.com,\n\tjbrunet@baylibre.com,\n\tdlemoal@kernel.org,\n\tarnd@arndb.de,\n\telfring@users.sourceforge.net,\n\tden@valinux.co.jp",
        "Subject": "[RFC PATCH v3 33/35] NTB: epf: Add an additional memory window (MW2)\n barno mapping on Renesas R-Car",
        "Date": "Thu, 18 Dec 2025 00:16:07 +0900",
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    },
    "content": "To enable remote eDMA mode on NTB transport, one additional memory\nwindow is required. Since a single BAR can now be split into multiple\nmemory windows, add MW2 to BAR2 on R-Car.\n\nFor pci_epf_vntb configfs settings, users who want to use MW2 (e.g. to\nenable remote eDMA mode for NTB transport as mentioned above) may\nconfigure as follows:\n\n  $ echo 2       > functions/pci_epf_vntb/func1/pci_epf_vntb.0/num_mws\n  $ echo 0xE0000 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/mw1\n  $ echo 0x20000 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/mw2\n  $ echo 0xE0000 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/mw2_offset\n  $ echo 2       > functions/pci_epf_vntb/func1/pci_epf_vntb.0/mw1_bar\n  $ echo 2       > functions/pci_epf_vntb/func1/pci_epf_vntb.0/mw2_bar\n\nSigned-off-by: Koichiro Den <den@valinux.co.jp>\n---\n drivers/ntb/hw/epf/ntb_hw_epf.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/ntb/hw/epf/ntb_hw_epf.c b/drivers/ntb/hw/epf/ntb_hw_epf.c\nindex efe540a8c734..18d27ba9b6f4 100644\n--- a/drivers/ntb/hw/epf/ntb_hw_epf.c\n+++ b/drivers/ntb/hw/epf/ntb_hw_epf.c\n@@ -826,7 +826,7 @@ static const enum pci_barno rcar_barno[NTB_BAR_NUM] = {\n \t[BAR_PEER_SPAD]\t= BAR_0,\n \t[BAR_DB]\t= BAR_4,\n \t[BAR_MW1]\t= BAR_2,\n-\t[BAR_MW2]\t= NO_BAR,\n+\t[BAR_MW2]\t= BAR_2,\n \t[BAR_MW3]\t= NO_BAR,\n \t[BAR_MW4]\t= NO_BAR,\n };\n",
    "prefixes": [
        "RFC",
        "v3",
        "33/35"
    ]
}