From patchwork Thu Mar 3 12:04:16 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yankejian X-Patchwork-Id: 8492011 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 4F9449F2F0 for ; Thu, 3 Mar 2016 11:54:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7AE8E201BB for ; Thu, 3 Mar 2016 11:54:08 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 899392013D for ; Thu, 3 Mar 2016 11:54:07 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1abRnw-0002wd-NG; Thu, 03 Mar 2016 11:52:28 +0000 Received: from szxga03-in.huawei.com ([119.145.14.66]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1abRiW-0003tu-MN for linux-arm-kernel@lists.infradead.org; Thu, 03 Mar 2016 11:47:11 +0000 Received: from 172.24.1.49 (EHLO szxeml427-hub.china.huawei.com) ([172.24.1.49]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id BXE16325; Thu, 03 Mar 2016 19:45:48 +0800 (CST) Received: from localhost.localdomain (10.67.212.75) by szxeml427-hub.china.huawei.com (10.82.67.182) with Microsoft SMTP Server id 14.3.235.1; Thu, 3 Mar 2016 19:45:03 +0800 From: Kejian Yan To: , , , , , , , , , , , Subject: [PATCH net] net: hns: fix the fault about mtu setting Date: Thu, 3 Mar 2016 20:04:16 +0800 Message-ID: <1457006656-236624-1-git-send-email-yankejian@huawei.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A0B0206.56D823ED.0166, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: ddbd510a4218a1ea81184bf8b177d99b X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160303_034654_059111_B53E9FE6 X-CRM114-Status: GOOD ( 12.02 ) X-Spam-Score: -4.2 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, linuxarm@huawei.com, haifeng.wei@huawei.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP As the User Manual describes, maximum value are 9728 for service ports and 1500 for debug ports, not always 9600. So it needs to be configured to right value for the different port. The max frame len of ppe needs to be set to the right as well. Signed-off-by: Kejian Yan --- drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 7 ++++++- drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h | 2 ++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c | 3 +++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h | 2 ++ 4 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c index 5ef0e96..65b8d91 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c @@ -467,8 +467,13 @@ int hns_mac_set_mtu(struct hns_mac_cb *mac_cb, u32 new_mtu) struct mac_driver *drv = hns_mac_get_drv(mac_cb); u32 buf_size = mac_cb->dsaf_dev->buf_size; u32 new_frm = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; + u32 max_frm = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver) ? + MAC_MAX_MTU : MAC_MAX_MTU_V2; - if ((new_mtu < MAC_MIN_MTU) || (new_frm > MAC_MAX_MTU) || + if (mac_cb->mac_type == HNAE_PORT_DEBUG) + max_frm = MAC_MAX_MTU_DBG; + + if ((new_mtu < MAC_MIN_MTU) || (new_frm > max_frm) || (new_frm > HNS_RCB_RING_MAX_BD_PER_PKT * buf_size)) return -EINVAL; diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h index 0b05219..fc51e3d 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h @@ -26,7 +26,9 @@ struct dsaf_device; #define MAC_DEFAULT_MTU (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN + ETH_DATA_LEN) #define MAC_MAX_MTU 9600 +#define MAC_MAX_MTU_V2 9728 #define MAC_MIN_MTU 68 +#define MAC_MAX_MTU_DBG MAC_DEFAULT_MTU #define MAC_DEFAULT_PAUSE_TIME 0xff diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c index f302ef9..7a61c57 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c @@ -343,6 +343,9 @@ static void hns_ppe_init_hw(struct hns_ppe_cb *ppe_cb) if (!AE_IS_VER1(dsaf_dev->dsaf_ver)) { hns_ppe_set_vlan_strip(ppe_cb, 0); + dsaf_write_dev(ppe_cb, PPE_CFG_MAX_FRAME_LEN_REG, + HNS_PPEV2_MAX_FRAME_LEN); + /* set default RSS key in h/w */ hns_ppe_set_rss_key(ppe_cb, ppe_cb->rss_key); diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h index 0f5cb69..e9c0ec2 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h @@ -30,6 +30,8 @@ #define HNS_PPEV2_RSS_KEY_SIZE 40 /* in bytes or 320 bits */ #define HNS_PPEV2_RSS_KEY_NUM (HNS_PPEV2_RSS_KEY_SIZE / sizeof(u32)) +#define HNS_PPEV2_MAX_FRAME_LEN 0X980 + enum ppe_qid_mode { PPE_QID_MODE0 = 0, /* fixed queue id mode */ PPE_QID_MODE1, /* switch:128VM non switch:6Port/4VM/4TC */