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GET /api/patches/42022/?format=api
{ "id": 42022, "url": "http://patchwork.dpdk.org/api/patches/42022/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/1530443135-39066-1-git-send-email-ido@cgstowernetworks.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", "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": "<1530443135-39066-1-git-send-email-ido@cgstowernetworks.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1530443135-39066-1-git-send-email-ido@cgstowernetworks.com", "date": "2018-07-01T11:05:34", "name": "[v4] net/pcap: rx_iface_in stream type support", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "d5010bbd1ca8eef8528dddb1f619c7e6d6532500", "submitter": { "id": 1047, "url": "http://patchwork.dpdk.org/api/people/1047/?format=api", "name": "Ido Goshen", "email": "ido@cgstowernetworks.com" }, "delegate": { "id": 319, "url": "http://patchwork.dpdk.org/api/users/319/?format=api", "username": "fyigit", "first_name": "Ferruh", "last_name": "Yigit", "email": "ferruh.yigit@amd.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/1530443135-39066-1-git-send-email-ido@cgstowernetworks.com/mbox/", "series": [ { "id": 337, "url": "http://patchwork.dpdk.org/api/series/337/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=337", "date": "2018-07-01T11:05:34", "name": "[v4] net/pcap: rx_iface_in stream type support", "version": 4, "mbox": "http://patchwork.dpdk.org/series/337/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/patches/42022/comments/", "check": "success", "checks": "http://patchwork.dpdk.org/api/patches/42022/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 0CC871B5A4;\n\tSun, 1 Jul 2018 13:06:11 +0200 (CEST)", "from EUR03-AM5-obe.outbound.protection.outlook.com\n\t(mail-eopbgr30096.outbound.protection.outlook.com [40.107.3.96])\n\tby dpdk.org (Postfix) with ESMTP id 7C44C1B05E\n\tfor <dev@dpdk.org>; Sun, 1 Jul 2018 13:06:09 +0200 (CEST)", "from ubuntu.localdomain (81.218.57.230) by\n\tAM4PR0901MB1283.eurprd09.prod.outlook.com (2603:10a6:200:3f::17) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.906.23;\n\tSun, 1 Jul 2018 11:06:05 +0000" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=cgstowernetworks.onmicrosoft.com; s=selector1-cgstowernetworks-com; \n\th=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n\tbh=i6ZFd8KQ1tyty47pbxKAblOc5utss1wqZ63nIMUysAk=;\n\tb=KvJXWgrYRtSw4+GXl3BaXGIWFAFdrncqag90dnPPnW24EQHarVWTmRESUK8Rmdf8wQm9/WdAfi7Ko+NkStS0rrLve/+2eh6hEm1lHQ4xg/eqeTSEgGV0dPn2Ut8vsXKfIzux9q/SxxTvzj6vzx7Au8EINJr+U4KhVh9l8t/sdc4=", "Authentication-Results": "spf=none (sender IP is )\n\tsmtp.mailfrom=Ido@cgstowernetworks.com; ", "From": "ido goshen <ido@cgstowernetworks.com>", "To": "Bruce Richardson <bruce.richardson@intel.com>,\n\tFerruh Yigit <ferruh.yigit@intel.com>,\n\tJohn McNamara <john.mcnamara@intel.com>,\n\tMarko Kovacevic <marko.kovacevic@intel.com>", "Cc": "dev@dpdk.org,\n\tido g <ido@cgstowernetworks.com>", "Date": "Sun, 1 Jul 2018 14:05:34 +0300", "Message-Id": "<1530443135-39066-1-git-send-email-ido@cgstowernetworks.com>", "X-Mailer": "git-send-email 1.9.1", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "X-Originating-IP": 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"w5JtpLO+ejyzvmXGvK0TctpD5sE/HxVb6C0FgGDs+Wq6wZvz7X61zLS2fch3QcfmyihjTSKXyST/xhwkFoPkecWPbiiTfCFcn6c5lUv5M6VaoZrZI0jHfAkzV0HnvQUIZD0EQmI+errav8a+lLxWjWLt9Hi0ZXtnuNu9FDkfj05WhF3q1YNYqpolNpnvcBLgJ9zWmVXMrIHfuB+mn0eGUlzkEoNLUzEqUdYmc05aFDFDF0ttoPMVMG9U8RC2iQCDCeKMbpTDdX+QkIgILNtuq9o5QT8qMFJVMSC1dspdmuVAZS79XKVm37tiWKIF8VAos94GhUw+mSivGUUj6ccZQXg0r6mhX9TouobJ63rB/Tc=", "SpamDiagnosticOutput": "1:99", "SpamDiagnosticMetadata": "NSPM", "X-OriginatorOrg": "cgstowernetworks.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "01 Jul 2018 11:06:05.8192\n\t(UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "14659287-03b9-482d-a9d1-08d5df42a4c4", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "fc9e9498-07e8-4b82-b4cf-365bba23cbbf", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "AM4PR0901MB1283", "Subject": "[dpdk-dev] [PATCH v4] net/pcap: rx_iface_in stream type support", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<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\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "From: ido g <ido@cgstowernetworks.com>\n\nSupport rx of in direction packets only\nUseful for apps that also tx to eth_pcap ports in order to not see them\nechoed back in as rx when out direction is also captured\n\nExample:\nIn case using rx_iface and sending *single* packet to eth1\nit will loop forever as the when it is sent to tx_iface=eth1\nit will be captured again on the rx_iface=eth1 and so on\n $RTE_TARGET/app/testpmd l 0-3 -n 4 \\\n\t--vdev 'net_pcap0,rx_iface=eth1,tx_iface=eth1'\n …\n ---------------------- Forward statistics for port 0 ------------\n RX-packets: 758 RX-dropped: 0 RX-total: 758\n TX-packets: 758 TX-dropped: 0 TX-total: 758\n ------------------------------------------------------------------\nWhile if using rx_iface_in it will not be captured on the way out and\nbe forwarded only once\n $RTE_TARGET/app/testpmd l 0-3 -n 4 \\\n\t--vdev 'net_pcap0,rx_iface_in=eth1,tx_iface=eth1'\n …\n ---------------------- Forward statistics for port 0 ------------\n RX-packets: 1 RX-dropped: 0 RX-total: 1\n TX-packets: 1 TX-dropped: 0 TX-total: 1\n ------------------------------------------------------------------\n\nSigned-off-by: ido g <ido@cgstowernetworks.com>\n---\nv4:\n* fix order of rx_face and rx_iface_in mix\n* reward pcap_ring doc example\n* cosmetics code alignments\n* adding example commands in commit log \n\nv3:\n* merge to updated dpdk-next-net code\n* pcap_ring doc update\n\nv2:\n* clean checkpatch warning\n\n doc/guides/nics/pcap_ring.rst | 25 +++++++++++++++++++-\n drivers/net/pcap/rte_eth_pcap.c | 51 +++++++++++++++++++++++++++++++++++++----\n 2 files changed, 70 insertions(+), 6 deletions(-)", "diff": "diff --git a/doc/guides/nics/pcap_ring.rst b/doc/guides/nics/pcap_ring.rst\nindex 7fd063c..879e543 100644\n--- a/doc/guides/nics/pcap_ring.rst\n+++ b/doc/guides/nics/pcap_ring.rst\n@@ -71,11 +71,19 @@ The different stream types are:\n tx_pcap=/path/to/file.pcap\n \n * rx_iface: Defines a reception stream based on a network interface name.\n- The driver reads packets coming from the given interface using the Linux kernel driver for that interface.\n+ The driver reads packets from the given interface using the Linux kernel driver for that interface.\n+ The driver captures both the incoming and outgoing packets on that interface.\n The value is an interface name.\n \n rx_iface=eth0\n \n+* rx_iface_in: Defines a reception stream based on a network interface name.\n+ The driver reads packets from the given interface using the Linux kernel driver for that interface.\n+ The driver captures only the incoming packets on that interface.\n+ The value is an interface name.\n+\n+ rx_iface_in=eth0\n+\n * tx_iface: Defines a transmission stream based on a network interface name.\n The driver sends packets to the given interface using the Linux kernel driver for that interface.\n The value is an interface name.\n@@ -122,6 +130,21 @@ Forward packets through two network interfaces:\n $RTE_TARGET/app/testpmd -l 0-3 -n 4 \\\n --vdev 'net_pcap0,iface=eth0' --vdev='net_pcap1;iface=eth1'\n \n+Enable 2 tx queues on a network interface:\n+\n+.. code-block:: console\n+\n+ $RTE_TARGET/app/testpmd -l 0-3 -n 4 \\\n+ --vdev 'net_pcap0,rx_iface=eth1,tx_iface=eth1,tx_iface=eth1' \\\n+ -- --txq 2\n+\n+Read only incoming packets from a network interface and write them back to the same network interface:\n+\n+.. code-block:: console\n+\n+ $RTE_TARGET/app/testpmd -l 0-3 -n 4 \\\n+ --vdev 'net_pcap0,rx_iface_in=eth1,tx_iface=eth1'\n+\n Using libpcap-based PMD with the testpmd Application\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n \ndiff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c\nindex b21930b..0a89b24 100644\n--- a/drivers/net/pcap/rte_eth_pcap.c\n+++ b/drivers/net/pcap/rte_eth_pcap.c\n@@ -26,6 +26,7 @@\n #define ETH_PCAP_RX_PCAP_ARG \"rx_pcap\"\n #define ETH_PCAP_TX_PCAP_ARG \"tx_pcap\"\n #define ETH_PCAP_RX_IFACE_ARG \"rx_iface\"\n+#define ETH_PCAP_RX_IFACE_IN_ARG \"rx_iface_in\"\n #define ETH_PCAP_TX_IFACE_ARG \"tx_iface\"\n #define ETH_PCAP_IFACE_ARG \"iface\"\n \n@@ -83,6 +84,7 @@ struct pmd_devargs {\n \tETH_PCAP_RX_PCAP_ARG,\n \tETH_PCAP_TX_PCAP_ARG,\n \tETH_PCAP_RX_IFACE_ARG,\n+\tETH_PCAP_RX_IFACE_IN_ARG,\n \tETH_PCAP_TX_IFACE_ARG,\n \tETH_PCAP_IFACE_ARG,\n \tNULL\n@@ -739,6 +741,21 @@ struct pmd_devargs {\n }\n \n static inline int\n+set_iface_direction(const char *iface, pcap_t *pcap,\n+\t\tpcap_direction_t direction)\n+{\n+\tconst char *direction_str = (direction == PCAP_D_IN) ? \"IN\" : \"OUT\";\n+\tif (pcap_setdirection(pcap, direction) < 0) {\n+\t\tPMD_LOG(ERR, \"Setting %s pcap direction %s failed - %s\\n\",\n+\t\t\t\tiface, direction_str, pcap_geterr(pcap));\n+\t\treturn -1;\n+\t}\n+\tPMD_LOG(INFO, \"Setting %s pcap direction %s\\n\",\n+\t\t\tiface, direction_str);\n+\treturn 0;\n+}\n+\n+static inline int\n open_iface(const char *key, const char *value, void *extra_args)\n {\n \tconst char *iface = value;\n@@ -761,7 +778,29 @@ struct pmd_devargs {\n static inline int\n open_rx_iface(const char *key, const char *value, void *extra_args)\n {\n-\treturn open_iface(key, value, extra_args);\n+\tint ret = open_iface(key, value, extra_args);\n+\tif (ret < 0)\n+\t\treturn ret;\n+\tif (strcmp(key, ETH_PCAP_RX_IFACE_IN_ARG) == 0) {\n+\t\tstruct pmd_devargs *pmd = extra_args;\n+\t\tunsigned int qid = pmd->num_of_queue - 1;\n+\n+\t\tset_iface_direction(pmd->queue[qid].name,\n+\t\t\t\tpmd->queue[qid].pcap,\n+\t\t\t\tPCAP_D_IN);\n+\t}\n+\n+\treturn 0;\n+}\n+\n+static inline int\n+rx_iface_args_process(const char *key, const char *value, void *extra_args)\n+{\n+\tif (strcmp(key, ETH_PCAP_RX_IFACE_ARG) == 0 ||\n+\t\t\tstrcmp(key, ETH_PCAP_RX_IFACE_IN_ARG) == 0)\n+\t\treturn open_rx_iface(key, value, extra_args);\n+\n+\treturn 0;\n }\n \n /*\n@@ -964,12 +1003,13 @@ struct pmd_devargs {\n \tis_rx_pcap = rte_kvargs_count(kvlist, ETH_PCAP_RX_PCAP_ARG) ? 1 : 0;\n \tpcaps.num_of_queue = 0;\n \n-\tif (is_rx_pcap)\n+\tif (is_rx_pcap) {\n \t\tret = rte_kvargs_process(kvlist, ETH_PCAP_RX_PCAP_ARG,\n \t\t\t\t&open_rx_pcap, &pcaps);\n-\telse\n-\t\tret = rte_kvargs_process(kvlist, ETH_PCAP_RX_IFACE_ARG,\n-\t\t\t\t&open_rx_iface, &pcaps);\n+\t} else {\n+\t\tret = rte_kvargs_process(kvlist, NULL,\n+\t\t\t\t&rx_iface_args_process, &pcaps);\n+\t}\n \n \tif (ret < 0)\n \t\tgoto free_kvlist;\n@@ -1035,6 +1075,7 @@ struct pmd_devargs {\n \tETH_PCAP_RX_PCAP_ARG \"=<string> \"\n \tETH_PCAP_TX_PCAP_ARG \"=<string> \"\n \tETH_PCAP_RX_IFACE_ARG \"=<ifc> \"\n+\tETH_PCAP_RX_IFACE_IN_ARG \"=<ifc> \"\n \tETH_PCAP_TX_IFACE_ARG \"=<ifc> \"\n \tETH_PCAP_IFACE_ARG \"=<ifc>\");\n \n", "prefixes": [ "v4" ] }