From patchwork Mon Sep 13 13:14:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 510599 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 21583C433FE for ; Mon, 13 Sep 2021 14:10:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0838060F3A for ; Mon, 13 Sep 2021 14:10:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242940AbhIMOL4 (ORCPT ); Mon, 13 Sep 2021 10:11:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:57882 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345141AbhIMOJw (ORCPT ); Mon, 13 Sep 2021 10:09:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id ADF1E613D3; Mon, 13 Sep 2021 13:41:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631540499; bh=FfmbHbn3/BDtilVuH0lIzCG1oARA5NmkN2O5w8yhM58=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=p32JORWJ10ZcfjqOEIfp9gke6bhaOR8e3i/2nqBzpI1qEeKQNH3lthY9+0WnEFPhc pOlrLDnKbse5w8deR+ZbHEsEwTHg94nq0W48tJxvh5i7o7u7nRm/CD2Ayn0m/Oq8wT iKWQudrcvxVa6nHpZwQR9g78WxODiH+Wb+G8Yn/I= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Subbaraya Sundeep , Sunil Goutham , "David S. Miller" , Sasha Levin Subject: [PATCH 5.13 218/300] octeontx2-af: cn10k: Fix SDP base channel number Date: Mon, 13 Sep 2021 15:14:39 +0200 Message-Id: <20210913131116.731185316@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210913131109.253835823@linuxfoundation.org> References: <20210913131109.253835823@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Subbaraya Sundeep [ Upstream commit 477b53f3f95ba5341b4320f8b7a92cedc5a67650 ] As per hardware the base channel number configured for programmable channels of a block must be multiple of number of channels of that block. This condition is not met for SDP base channel currently. Hence this patch ensures all the base channel numbers of all blocks are multiple of number of channels present in the blocks. Also instead of hardcoding SDP number of channels the same is read from the NIX_AF_CONST1 register. Fixes: 242da439214b ("octeontx2-af: cn10k: Add support for programmable") Signed-off-by: Subbaraya Sundeep Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- .../ethernet/marvell/octeontx2/af/common.h | 2 -- .../ethernet/marvell/octeontx2/af/rvu_cn10k.c | 31 +++++++++++++------ 2 files changed, 22 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h index e66109367487..c1e11cb68d26 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/common.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h @@ -195,8 +195,6 @@ enum nix_scheduler { #define NIX_CHAN_LBK_CHX(a, b) (0 + 0x100 * (a) + (b)) #define NIX_CHAN_SDP_CH_START (0x700ull) -#define SDP_CHANNELS 256 - /* NIX LSO format indices. * As of now TSO is the only one using, so statically assigning indices. */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c index 7d9e71c6965f..7a2157709dde 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c @@ -12,9 +12,10 @@ int rvu_set_channels_base(struct rvu *rvu) { + u16 nr_lbk_chans, nr_sdp_chans, nr_cgx_chans, nr_cpt_chans; + u16 sdp_chan_base, cgx_chan_base, cpt_chan_base; struct rvu_hwinfo *hw = rvu->hw; - u16 cpt_chan_base; - u64 nix_const; + u64 nix_const, nix_const1; int blkaddr; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); @@ -22,6 +23,7 @@ int rvu_set_channels_base(struct rvu *rvu) return blkaddr; nix_const = rvu_read64(rvu, blkaddr, NIX_AF_CONST); + nix_const1 = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); hw->cgx = (nix_const >> 12) & 0xFULL; hw->lmac_per_cgx = (nix_const >> 8) & 0xFULL; @@ -44,14 +46,24 @@ int rvu_set_channels_base(struct rvu *rvu) * channels such that all channel numbers are contiguous * leaving no holes. This way the new CPT channels can be * accomodated. The order of channel numbers assigned is - * LBK, SDP, CGX and CPT. + * LBK, SDP, CGX and CPT. Also the base channel number + * of a block must be multiple of number of channels + * of the block. */ - hw->sdp_chan_base = hw->lbk_chan_base + hw->lbk_links * - ((nix_const >> 16) & 0xFFULL); - hw->cgx_chan_base = hw->sdp_chan_base + hw->sdp_links * SDP_CHANNELS; + nr_lbk_chans = (nix_const >> 16) & 0xFFULL; + nr_sdp_chans = nix_const1 & 0xFFFULL; + nr_cgx_chans = nix_const & 0xFFULL; + nr_cpt_chans = (nix_const >> 32) & 0xFFFULL; - cpt_chan_base = hw->cgx_chan_base + hw->cgx_links * - (nix_const & 0xFFULL); + sdp_chan_base = hw->lbk_chan_base + hw->lbk_links * nr_lbk_chans; + /* Round up base channel to multiple of number of channels */ + hw->sdp_chan_base = ALIGN(sdp_chan_base, nr_sdp_chans); + + cgx_chan_base = hw->sdp_chan_base + hw->sdp_links * nr_sdp_chans; + hw->cgx_chan_base = ALIGN(cgx_chan_base, nr_cgx_chans); + + cpt_chan_base = hw->cgx_chan_base + hw->cgx_links * nr_cgx_chans; + hw->cpt_chan_base = ALIGN(cpt_chan_base, nr_cpt_chans); /* Out of 4096 channels start CPT from 2048 so * that MSB for CPT channels is always set @@ -155,6 +167,7 @@ err_put: static void __rvu_nix_set_channels(struct rvu *rvu, int blkaddr) { + u64 nix_const1 = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); u64 nix_const = rvu_read64(rvu, blkaddr, NIX_AF_CONST); u16 cgx_chans, lbk_chans, sdp_chans, cpt_chans; struct rvu_hwinfo *hw = rvu->hw; @@ -164,7 +177,7 @@ static void __rvu_nix_set_channels(struct rvu *rvu, int blkaddr) cgx_chans = nix_const & 0xFFULL; lbk_chans = (nix_const >> 16) & 0xFFULL; - sdp_chans = SDP_CHANNELS; + sdp_chans = nix_const1 & 0xFFFULL; cpt_chans = (nix_const >> 32) & 0xFFFULL; start = hw->cgx_chan_base;