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{
    "id": 107747,
    "url": "http://patchwork.dpdk.org/api/patches/107747/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20220217160613.70161-11-srikanth.k@oneconvergence.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",
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        "scm_url": "git://dpdk.org/dpdk",
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    "msgid": "<20220217160613.70161-11-srikanth.k@oneconvergence.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20220217160613.70161-11-srikanth.k@oneconvergence.com",
    "date": "2022-02-17T16:06:08",
    "name": "[v3,10/15] bus/vmbus: get subchannel info",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "88a9cfc6a6aaaab101240ce0add17d760c14c971",
    "submitter": {
        "id": 2368,
        "url": "http://patchwork.dpdk.org/api/people/2368/?format=api",
        "name": "Srikanth Kaka",
        "email": "srikanth.k@oneconvergence.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20220217160613.70161-11-srikanth.k@oneconvergence.com/mbox/",
    "series": [
        {
            "id": 21713,
            "url": "http://patchwork.dpdk.org/api/series/21713/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=21713",
            "date": "2022-02-17T16:05:58",
            "name": "add FreeBSD support to VMBUS & NetVSC PMDs",
            "version": 3,
            "mbox": "http://patchwork.dpdk.org/series/21713/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/patches/107747/comments/",
    "check": "success",
    "checks": "http://patchwork.dpdk.org/api/patches/107747/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
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        "From": "Srikanth Kaka <srikanth.k@oneconvergence.com>",
        "To": "sthemmin@microsoft.com,\n\tlongli@microsoft.com",
        "Cc": "dev@dpdk.org, vag.singh@oneconvergence.com, avelu@juniper.net,\n Srikanth Kaka <srikanth.k@oneconvergence.com>",
        "Subject": "[PATCH v3 10/15] bus/vmbus: get subchannel info",
        "Date": "Thu, 17 Feb 2022 21:36:08 +0530",
        "Message-Id": "<20220217160613.70161-11-srikanth.k@oneconvergence.com>",
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        "In-Reply-To": "<20220217160613.70161-1-srikanth.k@oneconvergence.com>",
        "References": "<20210927134231.11177-1-srikanth.k@oneconvergence.com>\n <20220217160613.70161-1-srikanth.k@oneconvergence.com>",
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    },
    "content": "Using sysctl, all the subchannel information is fetched\n\nSigned-off-by: Srikanth Kaka <srikanth.k@oneconvergence.com>\nSigned-off-by: Vag Singh <vag.singh@oneconvergence.com>\nSigned-off-by: Anand Thulasiram <avelu@juniper.net>\n---\n drivers/bus/vmbus/freebsd/vmbus_uio.c | 85 +++++++++++++++++++++++++++\n 1 file changed, 85 insertions(+)",
    "diff": "diff --git a/drivers/bus/vmbus/freebsd/vmbus_uio.c b/drivers/bus/vmbus/freebsd/vmbus_uio.c\nindex affc0a3f4f..ca6f5fac59 100644\n--- a/drivers/bus/vmbus/freebsd/vmbus_uio.c\n+++ b/drivers/bus/vmbus/freebsd/vmbus_uio.c\n@@ -308,6 +308,91 @@ bool vmbus_uio_subchannels_supported(const struct rte_vmbus_device *dev,\n \treturn true;\n }\n \n+static bool vmbus_isnew_subchannel(struct vmbus_channel *primary,\n+\t\t\t\t   uint16_t id)\n+{\n+\tconst struct vmbus_channel *c;\n+\n+\tSTAILQ_FOREACH(c, &primary->subchannel_list, next) {\n+\t\tif (c->relid == id)\n+\t\t\treturn false;\n+\t}\n+\treturn true;\n+}\n+\n+int vmbus_uio_get_subchan(struct vmbus_channel *primary,\n+\t\t\t  struct vmbus_channel **subchan)\n+{\n+\tconst struct rte_vmbus_device *dev = primary->device;\n+\tchar sysctlBuffer[PATH_MAX], sysctlVar[PATH_MAX];\n+\tsize_t len = PATH_MAX, sysctl_len;\n+\t/* nr_schan, relid, subid & monid datatype must match kernel's for sysctl */\n+\tuint32_t relid, subid, nr_schan, i;\n+\tuint8_t monid;\n+\tint err;\n+\n+\t/* get no. of sub-channels opened by hv_uio\n+\t * dev.hv_uio.0.subchan_cnt\n+\t */\n+\tsnprintf(sysctlVar, len, \"dev.%s.%d.subchan_cnt\", driver_name,\n+\t\t dev->uio_num);\n+\tsysctl_len = sizeof(nr_schan);\n+\tif (sysctlbyname(sysctlVar, &nr_schan, &sysctl_len, NULL, 0) < 0) {\n+\t\tVMBUS_LOG(ERR, \"could not read %s : %s\", sysctlVar,\n+\t\t\t\tstrerror(errno));\n+\t\treturn -1;\n+\t}\n+\n+\t/* dev.hv_uio.0.channel.14.sub */\n+\tsnprintf(sysctlBuffer, len, \"dev.%s.%d.channel.%u.sub\", driver_name,\n+\t\t dev->uio_num, primary->relid);\n+\tfor (i = 1; i <= nr_schan; i++) {\n+\t\t/* get relid */\n+\t\tsnprintf(sysctlVar, len, \"%s.%u.chanid\", sysctlBuffer, i);\n+\t\tsysctl_len = sizeof(relid);\n+\t\tif (sysctlbyname(sysctlVar, &relid, &sysctl_len, NULL, 0) < 0) {\n+\t\t\tVMBUS_LOG(ERR, \"could not read %s : %s\", sysctlVar,\n+\t\t\t\t\tstrerror(errno));\n+\t\t\tgoto error;\n+\t\t}\n+\n+\t\tif (!vmbus_isnew_subchannel(primary, (uint16_t)relid)) {\n+\t\t\tVMBUS_LOG(DEBUG, \"skip already found channel: %u\",\n+\t\t\t\t\trelid);\n+\t\t\tcontinue;\n+\t\t}\n+\n+\t\t/* get sub-channel id */\n+\t\tsnprintf(sysctlVar, len, \"%s.%u.ch_subidx\", sysctlBuffer, i);\n+\t\tsysctl_len = sizeof(subid);\n+\t\tif (sysctlbyname(sysctlVar, &subid, &sysctl_len, NULL, 0) < 0) {\n+\t\t\tVMBUS_LOG(ERR, \"could not read %s : %s\", sysctlVar,\n+\t\t\t\t\tstrerror(errno));\n+\t\t\tgoto error;\n+\t\t}\n+\n+\t\t/* get monitor id */\n+\t\tsnprintf(sysctlVar, len, \"%s.%u.monitor_id\", sysctlBuffer, i);\n+\t\tsysctl_len = sizeof(monid);\n+\t\tif (sysctlbyname(sysctlVar, &monid, &sysctl_len, NULL, 0) < 0) {\n+\t\t\tVMBUS_LOG(ERR, \"could not read %s : %s\", sysctlVar,\n+\t\t\t\t\tstrerror(errno));\n+\t\t\tgoto error;\n+\t\t}\n+\n+\t\terr = vmbus_chan_create(dev, (uint16_t)relid, (uint16_t)subid,\n+\t\t\t\t\tmonid, subchan);\n+\t\tif (err) {\n+\t\t\tVMBUS_LOG(ERR, \"subchannel setup failed\");\n+\t\t\treturn err;\n+\t\t}\n+\t\tbreak;\n+\t}\n+\treturn 0;\n+error:\n+\treturn -1;\n+}\n+\n int vmbus_uio_subchan_open(struct rte_vmbus_device *dev, uint32_t subchan)\n {\n \tstruct mapped_vmbus_resource *uio_res;\n",
    "prefixes": [
        "v3",
        "10/15"
    ]
}