From nobody Sun Feb 8 20:33:10 2026 Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) (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 DC669198E90; Thu, 5 Sep 2024 09:50:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.156.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725529802; cv=none; b=FJWsMXn5Zs1m2rsfZMBX9wYa5SwD5aTQ8kAOsMOvOqFaXJgmmq5gXtGMUqClSTHwzUdcB3iY+uaZEeZjC4y4MZhtpoa7P+UmOquUzScIQd1FbkCn9B0Ym+E3Mqi4RU4w0GPHNJ1LuOKVC0yFQ+Zih1p1bpSVmTKdsW7zP/uvu7o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725529802; c=relaxed/simple; bh=cE+2shhYK4mu4rP8rgRrMIW2ilfVvdrL/wqbOPQQwwI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=QzhRwfPcAaEL6JdMZBJ76zdkMf1as7IYjQiR9kzEi/LIzDhESlqIL6kvU+FnKYQ0oTsqpeb4+rWLQeoojwcm7uBW3hKgJDCF+kK4SqDBFquAa85YKJKqK1lsecdLTWVLcYwNj+7K3ROS7WFKefgtvMm7Wr5hJRboclmhw4jzfcc= 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=BuY2kPpX; arc=none smtp.client-ip=67.231.156.173 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="BuY2kPpX" Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 48586iUK015126; Thu, 5 Sep 2024 02:49:53 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=pfpt0220; bh=G3BdA2z79z6SgXxxTVQ7eHXIh SPL8rwg1thgXDr3J88=; b=BuY2kPpX6da7zLD+PlrlhrslNkpAM4uck+95yyMgn V5nKqhDnuVaBKhR/ZkYEzt6YH8jpsbNmzkTArIKXGWcgK+/Pt/XeSiFkwu8buIqr Mo4U96TzOiJ6j1VlXhI3glik+FEnufPHwXp4gvQREogZZ39Q3x7QJZQHDQuEVb1q SDJOpp9dNBJXHojh+1wmTDRkh1h08ycNqnXf1I0GRhPH1WgsuB8lcCNNyYV9SIDX HR8TfKcRI9AP9ffPrmp+rO8Z1ZJEvatDqZFJqfllY4SgiGHP+3aRx9UNF12IQLqP uG6FN9ivUKiieQIXzExAo4VKx9ojvUJSqHQjOEDAgN7ww== Received: from dc6wp-exch02.marvell.com ([4.21.29.225]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 41f8u48bj7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 05 Sep 2024 02:49:53 -0700 (PDT) Received: from DC6WP-EXCH02.marvell.com (10.76.176.209) by DC6WP-EXCH02.marvell.com (10.76.176.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Thu, 5 Sep 2024 02:49:52 -0700 Received: from maili.marvell.com (10.69.176.80) by DC6WP-EXCH02.marvell.com (10.76.176.209) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Thu, 5 Sep 2024 02:49:52 -0700 Received: from hyd1soter3.marvell.com (unknown [10.29.37.12]) by maili.marvell.com (Postfix) with ESMTP id DA0B15B6927; Thu, 5 Sep 2024 02:49:48 -0700 (PDT) From: Geetha sowjanya To: , CC: , , , , , , , , Subject: [net-next PATCH v2 3/4] octeontx2-pf: Reuse PF max mtu value Date: Thu, 5 Sep 2024 15:19:34 +0530 Message-ID: <20240905094935.26271-4-gakula@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240905094935.26271-1-gakula@marvell.com> References: <20240905094935.26271-1-gakula@marvell.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: B20fzdXXQkblQWCU3nxMzPNnODWKu1Ue X-Proofpoint-GUID: B20fzdXXQkblQWCU3nxMzPNnODWKu1Ue X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-05_05,2024-09-04_01,2024-09-02_01 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Reuse the maximum support HW MTU value that is fetch during probe. Instead of fetching through mbox each time mtu is changed as the value is fixed for interface. Signed-off-by: Geetha sowjanya --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 4 ++-- drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 1 + drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 1 + drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 1 + 4 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/dri= vers/net/ethernet/marvell/octeontx2/nic/otx2_common.c index 87d5776e3b88..34e76cfd941b 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -227,7 +227,7 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu) u16 maxlen; int err; =20 - maxlen =3D otx2_get_max_mtu(pfvf) + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN; + maxlen =3D pfvf->hw.max_mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN; =20 mutex_lock(&pfvf->mbox.lock); req =3D otx2_mbox_alloc_msg_nix_set_hw_frs(&pfvf->mbox); @@ -236,7 +236,7 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu) return -ENOMEM; } =20 - req->maxlen =3D pfvf->netdev->mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN; + req->maxlen =3D mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN; =20 /* Use max receive length supported by hardware for loopback devices */ if (is_otx2_lbkvf(pfvf->pdev)) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/dri= vers/net/ethernet/marvell/octeontx2/nic/otx2_common.h index df548aeffecf..b36b87dae2cb 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h @@ -228,6 +228,7 @@ struct otx2_hw { u16 txschq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; u16 matchall_ipolicer; u32 dwrr_mtu; + u32 max_mtu; u8 smq_link_type; =20 /* HW settings, coalescing etc */ diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers= /net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 6dfd6d1064ad..2460913fc510 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -3103,6 +3103,7 @@ static int otx2_probe(struct pci_dev *pdev, const str= uct pci_device_id *id) =20 netdev->min_mtu =3D OTX2_MIN_MTU; netdev->max_mtu =3D otx2_get_max_mtu(pf); + hw->max_mtu =3D netdev->max_mtu; =20 /* reset CGX/RPM MAC stats */ otx2_reset_mac_stats(pf); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers= /net/ethernet/marvell/octeontx2/nic/otx2_vf.c index 99fcc5661674..79a8acac6283 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -671,6 +671,7 @@ static int otx2vf_probe(struct pci_dev *pdev, const str= uct pci_device_id *id) =20 netdev->min_mtu =3D OTX2_MIN_MTU; netdev->max_mtu =3D otx2_get_max_mtu(vf); + hw->max_mtu =3D netdev->max_mtu; =20 /* To distinguish, for LBK VFs set netdev name explicitly */ if (is_otx2_lbkvf(vf->pdev)) { --=20 2.25.1