From patchwork Fri Dec 1 05:33:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suman Ghosh X-Patchwork-Id: 13475384 X-Patchwork-Delegate: kuba@kernel.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="TfiQN/AN" Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9A661703; Thu, 30 Nov 2023 21:33:48 -0800 (PST) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3B12Fd3n032634; Thu, 30 Nov 2023 21:33:41 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=rP3Ji68hr4FNmt1jJp4/fePLt1PrNYK2+C381Tz68Ig=; b=TfiQN/AN5Bh6H+7zvuJ0pwy1UPrI7fYEcwuhFCGQsHFd48yWxzhqlNA6xGRUQ/yBXSdr TnU9bFiSy3GUONflrx16B/3S6A6qN7BJ0DuUTK7rUsYAtPQZy9fzicWvXokurphRxwKu yQ+H0V8rSwbZgrFWVns0yFJLSDvw7+URUevGczG+183CPaHqubpXyxCYx8NFed0wfBQo KC7FmwoEFFTD2JY6v9hgwE3h7YYKogQCaAkvJeAVoA+H3xMdNhVmJzKEEK5cOm/ARgAJ YBkyJhjXhulQpu596pSZ3QmzK/FgT/v95rrZtpG6xOgiV+oaECDxPgImUMtjd3qj3IXl NA== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3updt6ed9d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 30 Nov 2023 21:33:40 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Thu, 30 Nov 2023 21:33:38 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Thu, 30 Nov 2023 21:33:38 -0800 Received: from localhost.localdomain (unknown [10.28.36.166]) by maili.marvell.com (Postfix) with ESMTP id EC9133F706B; Thu, 30 Nov 2023 21:33:32 -0800 (PST) From: Suman Ghosh To: , , , , , , , , , , , , , CC: Suman Ghosh Subject: [net PATCH v3] octeontx2-pf: consider both Rx and Tx packet stats for adaptive interrupt coalescing Date: Fri, 1 Dec 2023 11:03:30 +0530 Message-ID: <20231201053330.3903694-1-sumang@marvell.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-GUID: Y_XrMjM9bgam5AieALxwAoa4r4282kvX X-Proofpoint-ORIG-GUID: Y_XrMjM9bgam5AieALxwAoa4r4282kvX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-01_03,2023-11-30_01,2023-05-22_02 X-Patchwork-Delegate: kuba@kernel.org From: Naveen Mamindlapalli The current adaptive interrupt coalescing code updates only rx packet stats for dim algorithm. This patch also updates tx packet stats which will be useful when there is only tx traffic. Also moved configuring hardware adaptive interrupt setting to driver dim callback. Fixes: 6e144b47f560 ("octeontx2-pf: Add support for adaptive interrupt coalescing") Signed-off-by: Naveen Mamindlapalli Signed-off-by: Suman Ghosh Reviewed-by: Wojciech Drewek --- v3 changes: - Updated signed-off-by signature. v2 changes: - Missed adding the fixes tag in v1. Added the same in v2. .../ethernet/marvell/octeontx2/nic/otx2_pf.c | 9 +++++++++ .../marvell/octeontx2/nic/otx2_txrx.c | 20 +++++++++---------- 2 files changed, 19 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index ba95ac913274..6c0e0e2c235b 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -1685,6 +1685,14 @@ static void otx2_do_set_rx_mode(struct otx2_nic *pf) mutex_unlock(&pf->mbox.lock); } +static void otx2_set_irq_coalesce(struct otx2_nic *pfvf) +{ + int cint; + + for (cint = 0; cint < pfvf->hw.cint_cnt; cint++) + otx2_config_irq_coalescing(pfvf, cint); +} + static void otx2_dim_work(struct work_struct *w) { struct dim_cq_moder cur_moder; @@ -1700,6 +1708,7 @@ static void otx2_dim_work(struct work_struct *w) CQ_TIMER_THRESH_MAX : cur_moder.usec; pfvf->hw.cq_ecount_wait = (cur_moder.pkts > NAPI_POLL_WEIGHT) ? NAPI_POLL_WEIGHT : cur_moder.pkts; + otx2_set_irq_coalesce(pfvf); dim->state = DIM_START_MEASURE; } diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c index 6ee15f3c25ed..4d519ea833b2 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c @@ -512,11 +512,18 @@ static void otx2_adjust_adaptive_coalese(struct otx2_nic *pfvf, struct otx2_cq_p { struct dim_sample dim_sample; u64 rx_frames, rx_bytes; + u64 tx_frames, tx_bytes; rx_frames = OTX2_GET_RX_STATS(RX_BCAST) + OTX2_GET_RX_STATS(RX_MCAST) + OTX2_GET_RX_STATS(RX_UCAST); rx_bytes = OTX2_GET_RX_STATS(RX_OCTS); - dim_update_sample(pfvf->napi_events, rx_frames, rx_bytes, &dim_sample); + tx_bytes = OTX2_GET_TX_STATS(TX_OCTS); + tx_frames = OTX2_GET_TX_STATS(TX_UCAST); + + dim_update_sample(pfvf->napi_events, + rx_frames + tx_frames, + rx_bytes + tx_bytes, + &dim_sample); net_dim(&cq_poll->dim, dim_sample); } @@ -558,16 +565,9 @@ int otx2_napi_handler(struct napi_struct *napi, int budget) if (pfvf->flags & OTX2_FLAG_INTF_DOWN) return workdone; - /* Check for adaptive interrupt coalesce */ - if (workdone != 0 && - ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) == - OTX2_FLAG_ADPTV_INT_COAL_ENABLED)) { - /* Adjust irq coalese using net_dim */ + /* Adjust irq coalese using net_dim */ + if (pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) otx2_adjust_adaptive_coalese(pfvf, cq_poll); - /* Update irq coalescing */ - for (i = 0; i < pfvf->hw.cint_cnt; i++) - otx2_config_irq_coalescing(pfvf, i); - } if (unlikely(!filled_cnt)) { struct refill_work *work;