From patchwork Wed Feb 12 09:47:36 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suman Ghosh X-Patchwork-Id: 13971429 X-Patchwork-Delegate: kuba@kernel.org Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 14EAB207DF8; Wed, 12 Feb 2025 09:48:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.148.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739353720; cv=none; b=r1n4epVyCGqY/Sl0063HY630gbt3TfboFeKI2MJHoH69A0fyqoCrG+T6guyu1waj0yJRz00U/dZYRTGNa9pJVIYld7u7rdpN35sOY/Plbm+b10eSpbiuzLHyUgQHQtzHlDiBjP985bq6IdS2GlfR3mnMYytcEwUmyRXt29g9Ggc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739353720; c=relaxed/simple; bh=T0D0QW3526r5x0b6c5X8yywhhi8pHH1LN4572UOSvJI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=HXWqrZGYnL6clvG+rf4WuE5kLNg3n0wTDF6wHvgkSUVFip5SoQApfbHsVmhQqFJc+X9QB2kYp4ngjqjKS4VB68cq1rqVHmxzM7WXOoDF7blYLWnbjWTeLWqTuRbS3Xjs8L4g/Zqpi1Zom11eJjicm066KvOv5x84VX9QelfmPEs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com; spf=pass smtp.mailfrom=marvell.com; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b=MXsBQ6gy; arc=none smtp.client-ip=67.231.148.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=marvell.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="MXsBQ6gy" Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 51C9hSNB027154; Wed, 12 Feb 2025 01:48:19 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pfpt0220; bh=F EcO6PG3fq76Fm0efy0QRlKYReNJSABQ67wgnEK4Y9w=; b=MXsBQ6gyr3qHTT7Hu 2xiow/FA/YTy9r3pL5nf39/0EIze5KlKncWHaPGwdYGiKA0uIlyMYKAUpeu0HwJm D//E8vN2n4zeypB/p4hQeL0Oe8ACTiUAgqXVw1ayBK5I3RiNIMrvVCWGSpxIlp9Y xKJgDhRu9YMZXpyQZ1+9o4x/psJsc01HLx2FXaehLZoyOOJ6lJ0mPHqIQZXSGisD MwtGcZ8pkBumr3PAmFq/IQoCMnIFdjD4qUu492S7njUJ20/lZu6Gnnuh0yiOli7p tkJdxPVh5gPerfbBAoSsa5MVSxN9nd/kv7o6XJ0N56RPlUOqcNoVL8A18M6FpD63 SntqQ== Received: from dc5-exch05.marvell.com ([199.233.59.128]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 44rs80r07v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 12 Feb 2025 01:48:18 -0800 (PST) Received: from DC5-EXCH05.marvell.com (10.69.176.209) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Wed, 12 Feb 2025 01:48:17 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Wed, 12 Feb 2025 01:48:17 -0800 Received: from localhost.localdomain (unknown [10.28.36.166]) by maili.marvell.com (Postfix) with ESMTP id A753C3F708A; Wed, 12 Feb 2025 01:48:11 -0800 (PST) From: Suman Ghosh To: , , , , , , , , , , , , , , , , , , , , CC: Suman Ghosh Subject: [net-next PATCH v6 4/6] octeontx2-pf: Reconfigure RSS table after enabling AF_XDP zerocopy on rx queue Date: Wed, 12 Feb 2025 15:17:36 +0530 Message-ID: <20250212094738.2671725-5-sumang@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250212094738.2671725-1-sumang@marvell.com> References: <20250212094738.2671725-1-sumang@marvell.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-GUID: aXiE0WLJF6H-slM3jDOTA0FdR6fak0Lt X-Proofpoint-ORIG-GUID: aXiE0WLJF6H-slM3jDOTA0FdR6fak0Lt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-12_03,2025-02-11_01,2024-11-22_01 X-Patchwork-Delegate: kuba@kernel.org RSS table needs to be reconfigured once a rx queue is enabled or disabled for AF_XDP zerocopy support. After enabling UMEM on a rx queue, that queue should not be part of RSS queue selection algorithm. Similarly the queue should be considered again after UMEM is disabled. Signed-off-by: Suman Ghosh --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 4 ++++ drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 6 +++++- drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c | 4 ++++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c index 92b0dba07853..6f7c11d59942 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -331,6 +331,10 @@ int otx2_set_rss_table(struct otx2_nic *pfvf, int ctx_id) rss_ctx = rss->rss_ctx[ctx_id]; /* Get memory to put this msg */ for (idx = 0; idx < rss->rss_size; idx++) { + /* Ignore the queue if AF_XDP zero copy is enabled */ + if (test_bit(rss_ctx->ind_tbl[idx], pfvf->af_xdp_zc_qidx)) + continue; + aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox); if (!aq) { /* The shared memory buffer can be full. diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c index 2d53dc77ef1e..010385b29988 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c @@ -910,8 +910,12 @@ static int otx2_get_rxfh(struct net_device *dev, return -ENOENT; if (indir) { - for (idx = 0; idx < rss->rss_size; idx++) + for (idx = 0; idx < rss->rss_size; idx++) { + /* Ignore if the rx queue is AF_XDP zero copy enabled */ + if (test_bit(rss_ctx->ind_tbl[idx], pfvf->af_xdp_zc_qidx)) + continue; indir[idx] = rss_ctx->ind_tbl[idx]; + } } if (rxfh->key) memcpy(rxfh->key, rss->key, sizeof(rss->key)); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c index 894c1e0aea6f..3bdee1603fac 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c @@ -130,6 +130,8 @@ int otx2_xsk_pool_enable(struct otx2_nic *pf, struct xsk_buff_pool *pool, u16 qi set_bit(qidx, pf->af_xdp_zc_qidx); otx2_clean_up_rq(pf, qidx); + /* Reconfigure RSS table as 'qidx' cannot be part of RSS now */ + otx2_set_rss_table(pf, DEFAULT_RSS_CONTEXT_GROUP); /* Kick start the NAPI context so that receiving will start */ return otx2_xsk_wakeup(pf->netdev, qidx, XDP_WAKEUP_RX); } @@ -146,6 +148,8 @@ int otx2_xsk_pool_disable(struct otx2_nic *pf, u16 qidx) otx2_clean_up_rq(pf, qidx); clear_bit(qidx, pf->af_xdp_zc_qidx); xsk_pool_dma_unmap(pool, DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING); + /* Reconfigure RSS table as 'qidx' now need to be part of RSS now */ + otx2_set_rss_table(pf, DEFAULT_RSS_CONTEXT_GROUP); return 0; }