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GET /api/patches/819025/?format=api
{ "id": 819025, "url": "http://patchwork.ozlabs.org/api/patches/819025/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/1506500637-13881-3-git-send-email-jasowang@redhat.com/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1506500637-13881-3-git-send-email-jasowang@redhat.com>", "list_archive_url": null, "date": "2017-09-27T08:23:56", "name": "[net-next,2/3] tun: introduce ioctls to set and get steering policies", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": true, "hash": "c75e27189c4a39b09a0d91b04a7692f3c28b7bbe", "submitter": { "id": 5225, "url": "http://patchwork.ozlabs.org/api/people/5225/?format=api", "name": "Jason Wang", "email": "jasowang@redhat.com" }, "delegate": { "id": 34, "url": "http://patchwork.ozlabs.org/api/users/34/?format=api", "username": "davem", "first_name": "David", "last_name": "Miller", "email": "davem@davemloft.net" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/1506500637-13881-3-git-send-email-jasowang@redhat.com/mbox/", "series": [ { "id": 5306, "url": "http://patchwork.ozlabs.org/api/series/5306/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=5306", "date": "2017-09-27T08:23:56", "name": "support changing steering policies in tuntap", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/5306/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/819025/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/819025/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ext-mx10.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com", "ext-mx10.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=jasowang@redhat.com" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3y29pj32Kwz9t3B\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed, 27 Sep 2017 18:24:29 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752386AbdI0IYO (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tWed, 27 Sep 2017 04:24:14 -0400", "from mx1.redhat.com ([209.132.183.28]:55194 \"EHLO mx1.redhat.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1752197AbdI0IYL (ORCPT <rfc822;netdev@vger.kernel.org>);\n\tWed, 27 Sep 2017 04:24:11 -0400", "from smtp.corp.redhat.com\n\t(int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 1C665A0C11;\n\tWed, 27 Sep 2017 08:24:11 +0000 (UTC)", "from jason-ThinkPad-T450s.redhat.com (ovpn-12-60.pek2.redhat.com\n\t[10.72.12.60])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id D871677C97;\n\tWed, 27 Sep 2017 08:24:08 +0000 (UTC)" ], "DMARC-Filter": "OpenDMARC Filter v1.3.2 mx1.redhat.com 1C665A0C11", "From": "Jason Wang <jasowang@redhat.com>", "To": "netdev@vger.kernel.org, linux-kernel@vger.kernel.org", "Cc": "mst@redhat.com, Jason Wang <jasowang@redhat.com>", "Subject": "[PATCH net-next 2/3] tun: introduce ioctls to set and get steering\n\tpolicies", "Date": "Wed, 27 Sep 2017 16:23:56 +0800", "Message-Id": "<1506500637-13881-3-git-send-email-jasowang@redhat.com>", "In-Reply-To": "<1506500637-13881-1-git-send-email-jasowang@redhat.com>", "References": "<1506500637-13881-1-git-send-email-jasowang@redhat.com>", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.15", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.39]);\n\tWed, 27 Sep 2017 08:24:11 +0000 (UTC)", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "This patch introduces new ioctl for change packet steering policy for\ntun. Only automatic flow steering is supported, more policies will\ncome.\n\nSigned-off-by: Jason Wang <jasowang@redhat.com>\n---\n drivers/net/tun.c | 35 ++++++++++++++++++++++++++++++++++-\n include/uapi/linux/if_tun.h | 7 +++++++\n 2 files changed, 41 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/net/tun.c b/drivers/net/tun.c\nindex de83e72..1106521 100644\n--- a/drivers/net/tun.c\n+++ b/drivers/net/tun.c\n@@ -122,7 +122,8 @@ do {\t\t\t\t\t\t\t\t\\\n #define TUN_VNET_BE 0x40000000\n \n #define TUN_FEATURES (IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR | \\\n-\t\t IFF_MULTI_QUEUE | IFF_NAPI | IFF_NAPI_FRAGS)\n+\t\t IFF_MULTI_QUEUE | IFF_NAPI | IFF_NAPI_FRAGS | \\\n+\t\t IFF_MULTI_STEERING)\n \n #define GOODCOPY_LEN 128\n \n@@ -2506,6 +2507,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,\n \tunsigned int ifindex;\n \tint le;\n \tint ret;\n+\tunsigned int steering;\n \n \tif (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == SOCK_IOC_TYPE) {\n \t\tif (copy_from_user(&ifr, argp, ifreq_len))\n@@ -2764,6 +2766,37 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,\n \t\tret = 0;\n \t\tbreak;\n \n+\tcase TUNSETSTEERING:\n+\t\tret = -EFAULT;\n+\t\tif (copy_from_user(&steering, argp, sizeof(steering)))\n+\t\t\tbreak;\n+\t\tret = 0;\n+\t\tswitch (steering) {\n+\t\tcase TUN_STEERING_AUTOMQ:\n+\t\t\ttun->steering_ops = &tun_automq_ops;\n+\t\t\tbreak;\n+\t\tdefault:\n+\t\t\tret = -EFAULT;\n+\t\t}\n+\t\tbreak;\n+\n+\tcase TUNGETSTEERING:\n+\t\tret = 0;\n+\t\tif (tun->steering_ops == &tun_automq_ops)\n+\t\t\tsteering = TUN_STEERING_AUTOMQ;\n+\t\telse\n+\t\t\tBUG();\n+\t\tif (copy_to_user(argp, &steering, sizeof(steering)))\n+\t\t\tret = -EFAULT;\n+\t\tbreak;\n+\n+\tcase TUNGETSTEERINGFEATURES:\n+\t\tret = 0;\n+\t\tsteering = TUN_STEERING_AUTOMQ;\n+\t\tif (copy_to_user(argp, &steering, sizeof(steering)))\n+\t\t\tret = -EFAULT;\n+\t\tbreak;\n+\n \tdefault:\n \t\tret = -EINVAL;\n \t\tbreak;\ndiff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h\nindex 365ade5..109760e 100644\n--- a/include/uapi/linux/if_tun.h\n+++ b/include/uapi/linux/if_tun.h\n@@ -56,6 +56,9 @@\n */\n #define TUNSETVNETBE _IOW('T', 222, int)\n #define TUNGETVNETBE _IOR('T', 223, int)\n+#define TUNSETSTEERING _IOW('T', 224, unsigned int)\n+#define TUNGETSTEERING _IOR('T', 225, unsigned int)\n+#define TUNGETSTEERINGFEATURES _IOR('T', 226, unsigned int)\n \n /* TUNSETIFF ifr flags */\n #define IFF_TUN\t\t0x0001\n@@ -70,6 +73,8 @@\n #define IFF_MULTI_QUEUE 0x0100\n #define IFF_ATTACH_QUEUE 0x0200\n #define IFF_DETACH_QUEUE 0x0400\n+#define IFF_MULTI_STEERING 0x2000\n+\n /* read-only flag */\n #define IFF_PERSIST\t0x0800\n #define IFF_NOFILTER\t0x1000\n@@ -106,4 +111,6 @@ struct tun_filter {\n \t__u8 addr[0][ETH_ALEN];\n };\n \n+#define TUN_STEERING_AUTOMQ 0x01 /* Automatic flow steering */\n+\n #endif /* _UAPI__IF_TUN_H */\n", "prefixes": [ "net-next", "2/3" ] }