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GET /api/patches/99822/?format=api
{ "id": 99822, "url": "http://patches.dpdk.org/api/patches/99822/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20210927134231.11177-6-srikanth.k@oneconvergence.com/", "project": { "id": 1, "url": "http://patches.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", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20210927134231.11177-6-srikanth.k@oneconvergence.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20210927134231.11177-6-srikanth.k@oneconvergence.com", "date": "2021-09-27T13:42:25", "name": "[05/11] bus/vmbus: open subchannels", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "75e944299bb7b5198e677181c22cc06b0f4b8e5c", "submitter": { "id": 2368, "url": "http://patches.dpdk.org/api/people/2368/?format=api", "name": "Srikanth Kaka", "email": "srikanth.k@oneconvergence.com" }, "delegate": { "id": 1, "url": "http://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20210927134231.11177-6-srikanth.k@oneconvergence.com/mbox/", "series": [ { "id": 19194, "url": "http://patches.dpdk.org/api/series/19194/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=19194", "date": "2021-09-27T13:42:20", "name": "add FreeBSD support to VMBUS & NetVSC PMDs", "version": 1, "mbox": "http://patches.dpdk.org/series/19194/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/99822/comments/", "check": "warning", "checks": "http://patches.dpdk.org/api/patches/99822/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 6FDE8A0C46;\n\tMon, 27 Sep 2021 17:01:05 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id E9AA94119B;\n\tMon, 27 Sep 2021 16:58:35 +0200 (CEST)", "from mail-pl1-f179.google.com (mail-pl1-f179.google.com\n [209.85.214.179])\n by mails.dpdk.org (Postfix) with ESMTP id 71711410DA\n for <dev@dpdk.org>; Mon, 27 Sep 2021 15:43:12 +0200 (CEST)", "by mail-pl1-f179.google.com with SMTP id j14so11824600plx.4\n for <dev@dpdk.org>; Mon, 27 Sep 2021 06:43:12 -0700 (PDT)", "from srikanth-ThinkPad-T450.domain.name ([223.178.22.200])\n by smtp.gmail.com with ESMTPSA id b3sm16960665pfo.23.2021.09.27.06.43.09\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Mon, 27 Sep 2021 06:43:11 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=oneconvergence.com; s=google;\n h=from:to:cc:subject:date:message-id:in-reply-to:references\n :mime-version:content-transfer-encoding;\n bh=mBf5CDb9YpfOGy+b2QPFCF6Q+KfuH//kPmg7Wt/oTc8=;\n b=gKrM1GVokz+jZMirKMBpHTS7qJkzI0vLwGBB9B4h0IwRdFdX2vJgCOvGV6TBV2Y9on\n QLRjytq+5K/uaz2jmsQuNXSk3+ALEXCNlaK79N/mtoA3L8Bi2I9i2NV1ES7P0QXR4j43\n Fdw4iLO/sYIcxBbH4at34Nt5ikcxB3ewrQA4U=", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20210112;\n h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n :references:mime-version:content-transfer-encoding;\n bh=mBf5CDb9YpfOGy+b2QPFCF6Q+KfuH//kPmg7Wt/oTc8=;\n b=xDwMqdNthJD9OD5sV4Q2SIBhdgXQcUoExQc/GeCAPGUrWvJVHBWw2CgwoX7OAEutv0\n lUjIw0m1l2zeCAs1LmiHPCe98TDhpqy1yINhin3vDZn7tkLnffS10SxuSEE4f/L19P55\n HEPrJm8+a44GsMJ0W/DHJArp073iPvHbRe2yhlnUyMVklcLMb6Y0jtCsHL6y9E43QIVs\n oU0EBW/p3y1WUyMZYJDS7A4qIolpUTjGRMfBIl/4Oe39u1Hllg/F2/1gySBDevgqUlLA\n 6BqMk5ufXsi5uAMRZrGM+Y1AK5yusWsfitI/TxJSL1Hz0uO+7dhhsou+CnYULLDP8DzU\n xRvQ==", "X-Gm-Message-State": "AOAM532SsmnkJ3bgdO4Hk7kiSEQFXP3wtUF80BazKnEfgLJUUOXjLkdI\n Uj1mk/KnOYSRE9fkrc5qPtNh3w==", "X-Google-Smtp-Source": "\n ABdhPJxPidIUWJaNy+sf/V6un9kLkWzEeSqNuyzwtwlIbc0aZlwEW2LdOC2LfxeVjuOx/cSY7xHLVQ==", "X-Received": "by 2002:a17:902:a70e:b0:13e:1274:c352 with SMTP id\n w14-20020a170902a70e00b0013e1274c352mr9494plq.58.1632750191664;\n Mon, 27 Sep 2021 06:43:11 -0700 (PDT)", "From": "Srikanth Kaka <srikanth.k@oneconvergence.com>", "To": "Stephen Hemminger <sthemmin@microsoft.com>, Long Li <longli@microsoft.com>", "Cc": "dev@dpdk.org, Vag Singh <vag.singh@oneconvergence.com>,\n Anand Thulasiram <avelu@juniper.net>,\n Srikanth Kaka <srikanth.k@oneconvergence.com>", "Date": "Mon, 27 Sep 2021 19:12:25 +0530", "Message-Id": "<20210927134231.11177-6-srikanth.k@oneconvergence.com>", "X-Mailer": "git-send-email 2.30.2", "In-Reply-To": "<20210927134231.11177-1-srikanth.k@oneconvergence.com>", "References": "<20210927134231.11177-1-srikanth.k@oneconvergence.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Mailman-Approved-At": "Mon, 27 Sep 2021 16:58:07 +0200", "Subject": "[dpdk-dev] [PATCH 05/11] bus/vmbus: open subchannels", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "In FreeBSD, unlike Linux there is no sub-channel open callback that\ncould be called by HV_UIO driver, upon their grant by the hypervisor.\nThus, the PMD makes an IOCTL to the HV_UIO to open the granted\nsub-channels\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 | 31 +++++++++++++++++++++++++++\n drivers/bus/vmbus/linux/vmbus_uio.c | 8 +++++++\n drivers/bus/vmbus/private.h | 1 +\n drivers/bus/vmbus/rte_bus_vmbus.h | 10 +++++++++\n drivers/bus/vmbus/version.map | 1 +\n drivers/bus/vmbus/vmbus_channel.c | 5 +++++\n 6 files changed, 56 insertions(+)", "diff": "diff --git a/drivers/bus/vmbus/freebsd/vmbus_uio.c b/drivers/bus/vmbus/freebsd/vmbus_uio.c\nindex fdd37dac3a..022ac85302 100644\n--- a/drivers/bus/vmbus/freebsd/vmbus_uio.c\n+++ b/drivers/bus/vmbus/freebsd/vmbus_uio.c\n@@ -12,6 +12,7 @@\n #include <sys/mman.h>\n #include <sys/types.h>\n #include <sys/sysctl.h>\n+#include <sys/ioctl.h>\n \n #include <rte_log.h>\n #include <rte_bus.h>\n@@ -26,6 +27,9 @@\n /** Pathname of VMBUS devices directory. */\n #define SYSFS_VMBUS_DEVICES \"/sys/bus/vmbus/devices\"\n \n+/* ioctl */\n+#define HVIOOPENSUBCHAN _IOW('h', 14, uint32_t)\n+\n const char *driver_name = \"hv_uio\";\n static void *vmbus_map_addr;\n \n@@ -515,3 +519,30 @@ int vmbus_uio_get_subchan(struct vmbus_channel *primary,\n \tclosedir(chan_dir);\n \treturn err;\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+\tint fd, err = 0;\n+\n+\tuio_res = vmbus_uio_find_resource(dev);\n+\tif (!uio_res) {\n+\t\tVMBUS_LOG(ERR, \"cannot find uio resource\");\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tfd = open(uio_res->path, O_RDWR);\n+\tif (fd < 0) {\n+\t\tVMBUS_LOG(ERR, \"Cannot open %s: %s\",\n+\t\t\t\tuio_res->path, strerror(errno));\n+\t\treturn -1;\n+\t}\n+\n+\tif (ioctl(fd, HVIOOPENSUBCHAN, &subchan)) {\n+\t\tVMBUS_LOG(ERR, \"open subchan ioctl failed %s: %s\",\n+\t\t\t\tuio_res->path, strerror(errno));\n+\t\terr = -1;\n+\t}\n+\tclose(fd);\n+\treturn err;\n+}\ndiff --git a/drivers/bus/vmbus/linux/vmbus_uio.c b/drivers/bus/vmbus/linux/vmbus_uio.c\nindex b52ca5bf1d..9e91ed9907 100644\n--- a/drivers/bus/vmbus/linux/vmbus_uio.c\n+++ b/drivers/bus/vmbus/linux/vmbus_uio.c\n@@ -451,3 +451,11 @@ int vmbus_uio_get_subchan(struct vmbus_channel *primary,\n \tclosedir(chan_dir);\n \treturn err;\n }\n+\n+int vmbus_uio_subchan_open(struct rte_vmbus_device *dev,\n+\t\t\t uint32_t subchan)\n+{\n+\tRTE_SET_USED(dev);\n+\tRTE_SET_USED(subchan);\n+\treturn 0;\n+}\ndiff --git a/drivers/bus/vmbus/private.h b/drivers/bus/vmbus/private.h\nindex 528d60a42f..968f0b6f23 100644\n--- a/drivers/bus/vmbus/private.h\n+++ b/drivers/bus/vmbus/private.h\n@@ -107,6 +107,7 @@ int vmbus_uio_get_subchan(struct vmbus_channel *primary,\n int vmbus_uio_map_rings(struct vmbus_channel *chan);\n int vmbus_uio_map_secondary_subchan(const struct rte_vmbus_device *dev,\n \t\t\t\t const struct vmbus_channel *chan);\n+int vmbus_uio_subchan_open(struct rte_vmbus_device *device, uint32_t subchan);\n \n void vmbus_br_setup(struct vmbus_br *br, void *buf, unsigned int blen);\n \ndiff --git a/drivers/bus/vmbus/rte_bus_vmbus.h b/drivers/bus/vmbus/rte_bus_vmbus.h\nindex 4cf73ce815..42d13c5705 100644\n--- a/drivers/bus/vmbus/rte_bus_vmbus.h\n+++ b/drivers/bus/vmbus/rte_bus_vmbus.h\n@@ -405,6 +405,16 @@ void rte_vmbus_chan_dump(FILE *f, const struct vmbus_channel *chan);\n */\n void rte_vmbus_unregister(struct rte_vmbus_driver *driver);\n \n+/**\n+ * Perform IOCTL to VMBUS device\n+ *\n+ * @param device\n+ *\tA pointer to a rte_vmbus_device structure\n+ * @param subchan\n+ *\tCount of subchannels to open\n+ */\n+int rte_vmbus_ioctl(struct rte_vmbus_device *device, uint32_t subchan);\n+\n /** Helper for VMBUS device registration from driver instance */\n #define RTE_PMD_REGISTER_VMBUS(nm, vmbus_drv)\t\t\\\n \tRTE_INIT(vmbusinitfn_ ##nm)\t\t\t\\\ndiff --git a/drivers/bus/vmbus/version.map b/drivers/bus/vmbus/version.map\nindex 3cadec7fae..3509d4fc14 100644\n--- a/drivers/bus/vmbus/version.map\n+++ b/drivers/bus/vmbus/version.map\n@@ -23,6 +23,7 @@ DPDK_22 {\n \trte_vmbus_subchan_open;\n \trte_vmbus_unmap_device;\n \trte_vmbus_unregister;\n+\trte_vmbus_ioctl;\n \n \tlocal: *;\n };\ndiff --git a/drivers/bus/vmbus/vmbus_channel.c b/drivers/bus/vmbus/vmbus_channel.c\nindex f67f1c438a..f53a1b6511 100644\n--- a/drivers/bus/vmbus/vmbus_channel.c\n+++ b/drivers/bus/vmbus/vmbus_channel.c\n@@ -367,6 +367,11 @@ int rte_vmbus_max_channels(const struct rte_vmbus_device *device)\n \t\treturn 1;\n }\n \n+int rte_vmbus_ioctl(struct rte_vmbus_device *device, uint32_t subchan)\n+{\n+\treturn vmbus_uio_subchan_open(device, subchan);\n+}\n+\n /* Setup secondary channel */\n int rte_vmbus_subchan_open(struct vmbus_channel *primary,\n \t\t\t struct vmbus_channel **new_chan)\n", "prefixes": [ "05/11" ] }