From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hemant Agrawal Subject: [PATCH v2 3/3] kni: set initial value for MTU Date: Tue, 26 Dec 2017 16:06:48 +0530 Message-ID: <1514284608-9263-3-git-send-email-hemant.agrawal@nxp.com> References: <1512042367-6361-1-git-send-email-hemant.agrawal@nxp.com> <1514284608-9263-1-git-send-email-hemant.agrawal@nxp.com> Mime-Version: 1.0 Content-Type: text/plain Cc: To: Return-path: Received: from NAM03-CO1-obe.outbound.protection.outlook.com (mail-co1nam03on0082.outbound.protection.outlook.com [104.47.40.82]) by dpdk.org (Postfix) with ESMTP id 195D81B2D6 for ; Tue, 26 Dec 2017 11:37:56 +0100 (CET) In-Reply-To: <1514284608-9263-1-git-send-email-hemant.agrawal@nxp.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Configure initial application provided mtu on the KNI interface. Signed-off-by: Hemant Agrawal --- v2: fix ABI breakage examples/kni/main.c | 2 ++ lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h | 1 + lib/librte_eal/linuxapp/kni/kni_misc.c | 3 +++ lib/librte_kni/rte_kni.c | 1 + lib/librte_kni/rte_kni.h | 1 + 5 files changed, 8 insertions(+) diff --git a/examples/kni/main.c b/examples/kni/main.c index 1c251c2..d9c9fa5 100644 --- a/examples/kni/main.c +++ b/examples/kni/main.c @@ -845,6 +845,8 @@ kni_alloc(uint16_t port_id) rte_eth_macaddr_get(port_id, (struct ether_addr *)&conf.mac_addr); + rte_eth_dev_get_mtu(port_id, &conf.mtu); + memset(&ops, 0, sizeof(ops)); ops.port_id = port_id; ops.change_mtu = kni_change_mtu; diff --git a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h index b519db5..2e393c0 100644 --- a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h +++ b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h @@ -172,6 +172,7 @@ struct rte_kni_device_info { /* mbuf size */ unsigned mbuf_size; + unsigned int mtu; char mac_addr[6]; }; diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c b/lib/librte_eal/linuxapp/kni/kni_misc.c index b524d30..0ccd227 100644 --- a/lib/librte_eal/linuxapp/kni/kni_misc.c +++ b/lib/librte_eal/linuxapp/kni/kni_misc.c @@ -470,6 +470,9 @@ kni_ioctl_create(struct net *net, uint32_t ioctl_num, random_ether_addr(net_dev->dev_addr); } + if (dev_info.mtu) + net_dev->mtu = dev_info.mtu; + ret = register_netdev(net_dev); if (ret) { pr_err("error %i registering device \"%s\"\n", diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c index bed3f20..2461b47 100644 --- a/lib/librte_kni/rte_kni.c +++ b/lib/librte_kni/rte_kni.c @@ -369,6 +369,7 @@ rte_kni_alloc(struct rte_mempool *pktmbuf_pool, dev_info.force_bind = conf->force_bind; dev_info.group_id = conf->group_id; dev_info.mbuf_size = conf->mbuf_size; + dev_info.mtu = conf->mtu; memcpy(dev_info.mac_addr, conf->mac_addr, ETHER_ADDR_LEN); diff --git a/lib/librte_kni/rte_kni.h b/lib/librte_kni/rte_kni.h index 4530bdd..cbf3188 100644 --- a/lib/librte_kni/rte_kni.h +++ b/lib/librte_kni/rte_kni.h @@ -98,6 +98,7 @@ struct rte_kni_conf { __extension__ uint8_t force_bind : 1; /* Flag to bind kernel thread */ char mac_addr[ETHER_ADDR_LEN]; /* MAC address assigned to KNI */ + uint16_t mtu; }; /** -- 2.7.4