From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 01ACFC433DF for ; Fri, 22 May 2020 08:20:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF5362070A for ; Fri, 22 May 2020 08:20:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=marvell.com header.i=@marvell.com header.b="h6HDrgSU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729299AbgEVIUe (ORCPT ); Fri, 22 May 2020 04:20:34 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:43608 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729183AbgEVIUY (ORCPT ); Fri, 22 May 2020 04:20:24 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04M8F584032636; Fri, 22 May 2020 01:20:22 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0818; bh=wMAwqdaPWVYlBmjB5j5JXwgnpFewiXhOOVZKaMCwmHE=; b=h6HDrgSUwzXNa+0QVfGo/wU7X+9P+KHJskJynp0GbacvsKaYqSdoVYuwQeQeGpxgx0T1 MbdJE1nstDai290FGQN9BbMRT+WEOKGveMOB/kDvwsdfgWh/VYy/sN2WWAHF6HCbVqyb gwflB2xieBRBjH9ooII3r534sNXhf24ZF7mj6I1L7cHNhjmLL5GG/XkZC6Y/TgMhIfVi nuplOpuX0yh4QzpelMFvhGKuIS/XocO9ZnhRw4Yhn3Q3pumrM9NxQGrYcHuZYQ3gBbDF 7jbvZyvDhEzi8iHlikNOxvXuZ+rE6e8n88QrnQmoC6Sv3tmp9r1I/r5KK3KqcpQoBxp/ Eg== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0a-0016f401.pphosted.com with ESMTP id 312dhr29g7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 22 May 2020 01:20:22 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 22 May 2020 01:20:21 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 22 May 2020 01:20:20 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 22 May 2020 01:20:20 -0700 Received: from NN-LT0019.marvell.com (unknown [10.193.39.5]) by maili.marvell.com (Postfix) with ESMTP id BAB583F704A; Fri, 22 May 2020 01:20:18 -0700 (PDT) From: Igor Russkikh To: CC: "David S . Miller" , Mark Starovoytov , Jakub Kicinski , Igor Russkikh Subject: [PATCH v2 net-next 12/12] net: atlantic: proper rss_ctrl1 (54c0) initialization Date: Fri, 22 May 2020 11:19:48 +0300 Message-ID: <20200522081948.167-13-irusskikh@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200522081948.167-1-irusskikh@marvell.com> References: <20200522081948.167-1-irusskikh@marvell.com> MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.676 definitions=2020-05-22_04:2020-05-21,2020-05-22 signatures=0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Mark Starovoytov This patch fixes an inconsistency between code and spec, which was found while working on the QoS implementation. When 8TCs are used, 2 is the maximum supported number of index bits. In a 4TC mode, we do support 3, but we shouldn't really use the bytes, which are intended for the 8TC mode. Signed-off-by: Mark Starovoytov Signed-off-by: Igor Russkikh --- .../aquantia/atlantic/hw_atl/hw_atl_b0.c | 16 ++++++++++++++-- .../aquantia/atlantic/hw_atl/hw_atl_b0.h | 2 ++ .../atlantic/hw_atl/hw_atl_b0_internal.h | 4 ++++ .../ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c | 4 +--- .../aquantia/atlantic/hw_atl2/hw_atl2_internal.h | 3 --- 5 files changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c index 320f3669305d..14d79f70cad7 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c @@ -447,6 +447,19 @@ static int hw_atl_b0_hw_init_tx_path(struct aq_hw_s *self) return aq_hw_err_from_flags(self); } +void hw_atl_b0_hw_init_rx_rss_ctrl1(struct aq_hw_s *self) +{ + struct aq_nic_cfg_s *cfg = self->aq_nic_cfg; + u32 rss_ctrl1 = HW_ATL_RSS_DISABLED; + + if (cfg->is_rss) + rss_ctrl1 = (cfg->tc_mode == AQ_TC_MODE_8TCS) ? + HW_ATL_RSS_ENABLED_8TCS_2INDEX_BITS : + HW_ATL_RSS_ENABLED_4TCS_3INDEX_BITS; + + hw_atl_reg_rx_flr_rss_control1set(self, rss_ctrl1); +} + static int hw_atl_b0_hw_init_rx_path(struct aq_hw_s *self) { struct aq_nic_cfg_s *cfg = self->aq_nic_cfg; @@ -459,8 +472,7 @@ static int hw_atl_b0_hw_init_rx_path(struct aq_hw_s *self) hw_atl_rpb_rx_flow_ctl_mode_set(self, 1U); /* RSS Ring selection */ - hw_atl_reg_rx_flr_rss_control1set(self, cfg->is_rss ? - 0xB3333333U : 0x00000000U); + hw_atl_b0_hw_init_rx_rss_ctrl1(self); /* Multicast filters */ for (i = HW_ATL_B0_MAC_MAX; i--;) { diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h index b855459272ca..30f468f2084d 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.h @@ -58,6 +58,8 @@ int hw_atl_b0_hw_ring_tx_head_update(struct aq_hw_s *self, int hw_atl_b0_hw_ring_tx_stop(struct aq_hw_s *self, struct aq_ring_s *ring); int hw_atl_b0_hw_ring_rx_stop(struct aq_hw_s *self, struct aq_ring_s *ring); +void hw_atl_b0_hw_init_rx_rss_ctrl1(struct aq_hw_s *self); + int hw_atl_b0_hw_mac_addr_set(struct aq_hw_s *self, u8 *mac_addr); int hw_atl_b0_hw_start(struct aq_hw_s *self); diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h index 4fba4e0928c7..cf460d61a45e 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h @@ -151,6 +151,10 @@ #define HW_ATL_B0_MAX_RXD 8184U #define HW_ATL_B0_MAX_TXD 8184U +#define HW_ATL_RSS_DISABLED 0x00000000U +#define HW_ATL_RSS_ENABLED_8TCS_2INDEX_BITS 0xA2222222U +#define HW_ATL_RSS_ENABLED_4TCS_3INDEX_BITS 0x80003333U + /* HW layer capabilities */ #endif /* HW_ATL_B0_INTERNAL_H */ diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c index f941773b3e20..8df9d4ef36f0 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c @@ -475,9 +475,7 @@ static int hw_atl2_hw_init_rx_path(struct aq_hw_s *self) hw_atl2_rpf_rss_hash_type_set(self, HW_ATL2_RPF_RSS_HASH_TYPE_ALL); /* RSS Ring selection */ - hw_atl_reg_rx_flr_rss_control1set(self, cfg->is_rss ? - HW_ATL_RSS_ENABLED_3INDEX_BITS : - HW_ATL_RSS_DISABLED); + hw_atl_b0_hw_init_rx_rss_ctrl1(self); /* Multicast filters */ for (i = HW_ATL2_MAC_MAX; i--;) { diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h index 9ac1979a4867..5a89bb8722f9 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_internal.h @@ -117,9 +117,6 @@ enum HW_ATL2_RPF_RSS_HASH_TYPE { HW_ATL2_RPF_RSS_HASH_TYPE_IPV6_EX_UDP, }; -#define HW_ATL_RSS_DISABLED 0x00000000U -#define HW_ATL_RSS_ENABLED_3INDEX_BITS 0xB3333333U - #define HW_ATL_MCAST_FLT_ANY_TO_HOST 0x00010FFFU struct hw_atl2_priv { -- 2.25.1