From patchwork Thu Dec 10 13:54:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weihang Li X-Patchwork-Id: 11964727 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1926CC4361B for ; Thu, 10 Dec 2020 14:00:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC7B023B85 for ; Thu, 10 Dec 2020 14:00:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389789AbgLJOAH (ORCPT ); Thu, 10 Dec 2020 09:00:07 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:9496 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389763AbgLJN5g (ORCPT ); Thu, 10 Dec 2020 08:57:36 -0500 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4CsFnD2k9Yzhq6y; Thu, 10 Dec 2020 21:56:00 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.487.0; Thu, 10 Dec 2020 21:56:26 +0800 From: Weihang Li To: , CC: , , Subject: [PATCH v4 for-next 04/11] RDMA/hns: Avoid filling sl in high 3 bits of vlan_id Date: Thu, 10 Dec 2020 21:54:32 +0800 Message-ID: <1607608479-54518-5-git-send-email-liweihang@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1607608479-54518-1-git-send-email-liweihang@huawei.com> References: <1607608479-54518-1-git-send-email-liweihang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Only the low 12 bits of vlan_id is valid, and service level has been filled in Address Vector. So there is no need to fill sl in vlan_id in Address Vector. Fixes: 7406c0036f85 ("RDMA/hns: Only record vlan info for HIP08") Signed-off-by: Weihang Li --- drivers/infiniband/hw/hns/hns_roce_ah.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_ah.c b/drivers/infiniband/hw/hns/hns_roce_ah.c index c9a44db..cc258ed 100644 --- a/drivers/infiniband/hw/hns/hns_roce_ah.c +++ b/drivers/infiniband/hw/hns/hns_roce_ah.c @@ -36,9 +36,6 @@ #include #include "hns_roce_device.h" -#define VLAN_SL_MASK 7 -#define VLAN_SL_SHIFT 13 - static inline u16 get_ah_udp_sport(const struct rdma_ah_attr *ah_attr) { u32 fl = ah_attr->grh.flow_label; @@ -84,18 +81,12 @@ int hns_roce_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr, /* HIP08 needs to record vlan info in Address Vector */ if (hr_dev->pci_dev->revision <= PCI_REVISION_ID_HIP08) { - ah->av.vlan_en = 0; - ret = rdma_read_gid_l2_fields(ah_attr->grh.sgid_attr, &ah->av.vlan_id, NULL); if (ret) return ret; - if (ah->av.vlan_id < VLAN_N_VID) { - ah->av.vlan_en = 1; - ah->av.vlan_id |= (rdma_ah_get_sl(ah_attr) & VLAN_SL_MASK) << - VLAN_SL_SHIFT; - } + ah->av.vlan_en = ah->av.vlan_id < VLAN_N_VID; } return ret;