From patchwork Mon Jun 19 16:52:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 13284847 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 155BBD52A; Mon, 19 Jun 2023 17:03:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 153AAC433C0; Mon, 19 Jun 2023 17:03:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1687194224; bh=kZcG68CKxsF0yfm9NzXeng4kRKcnmTVTpToRWIdUohQ=; h=From:To:Cc:Subject:Date:From; b=SbzA+ryt2mcqUhfBIGRUperz+RWLFvNbD4pn26hux6htCBKOPgyTdJ4+R/BjqdgIh 1n8xFzLKDfA2RGRFwHVu+/DZ1e5VyxbjeJHQQ93/nRaUu9UJkz9OBtU3oxI1N6nHm7 7wChsSxoA2pd20L7rcgzOp/aEoZoy9b/QZhmwxp2/DB5wjGEsfas2zCqLZoP6qv0Sn PdFUMyQcxOclIgdNhIpGXE1XEC3wfblY0LR72hR4qkKcfgi1YG7bC4vezTHIPb09rD Vx5tm4owkbVIIHI2s6qWtVLa7CoFVn54R9XCUEbUGtSUs2SrTS3ffB6O/kygjSs2EG /AgMeU2YU+kiA== From: Jisheng Zhang To: Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev, Simon Horman Subject: [PATCH net-next v3 0/2] net: stmmac: fix & improve driver statistics Date: Tue, 20 Jun 2023 00:52:18 +0800 Message-Id: <20230619165220.2501-1-jszhang@kernel.org> X-Mailer: git-send-email 2.40.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org improve the stmmac driver statistics: 1. don't clear network driver statistics in .ndo_close() and .ndo_open() cycle 2. avoid some network driver statistics overflow on 32 bit platforms 3. use pcpu statistics where necessary to remove frequent cacheline ping pongs. NOTE: v1 and v2 are back ported from an internal LTS tree, I made some mistakes when backporting and squashing. Now, net-next + v3 has been well tested with 'ethtool -s' and 'ip -s link show'. Since v2: - fix ethtool .get_sset_count, .get_strings and per queue stats couting. - fix .ndo_get_stats64 only counts the last cpu's pcpu stats. - fix typo: s/iff/if in commit msg. - remove unnecessary if statement brackets since we have removed one LoC. Since v1: - rebase on net-next - fold two original patches into one patch - fix issues found by lkp - update commit msg Jisheng Zhang (2): net: stmmac: don't clear network statistics in .ndo_open() net: stmmac: use pcpu 64 bit statistics where necessary drivers/net/ethernet/stmicro/stmmac/common.h | 54 +++-- .../net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 15 +- .../ethernet/stmicro/stmmac/dwmac100_dma.c | 7 +- .../ethernet/stmicro/stmmac/dwmac4_descs.c | 16 +- .../net/ethernet/stmicro/stmmac/dwmac4_lib.c | 15 +- .../net/ethernet/stmicro/stmmac/dwmac_lib.c | 10 +- .../ethernet/stmicro/stmmac/dwxgmac2_descs.c | 6 +- .../ethernet/stmicro/stmmac/dwxgmac2_dma.c | 13 +- .../net/ethernet/stmicro/stmmac/enh_desc.c | 20 +- drivers/net/ethernet/stmicro/stmmac/hwif.h | 12 +- .../net/ethernet/stmicro/stmmac/norm_desc.c | 15 +- .../ethernet/stmicro/stmmac/stmmac_ethtool.c | 108 +++++++--- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 190 +++++++++++++----- 13 files changed, 312 insertions(+), 169 deletions(-)