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Miller" , Eric Dumazet , Jakub Kicinski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexandre Torgue , Jose Abreu , Maxime Coquelin , netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Prasad Sodagudi , Andrew Halaney , Rob Herring Cc: kernel@quicinc.com Subject: [PATCH v2] net: stmmac: dwmac-qcom-ethqos: Enable TBS on all queues but 0 Date: Tue, 6 Feb 2024 16:10:36 -0800 Message-Id: <20240207001036.1333450-1-quic_abchauha@quicinc.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: pFMpKkgujDH8ky-4mt2LIGwBn_H2n5fc X-Proofpoint-GUID: pFMpKkgujDH8ky-4mt2LIGwBn_H2n5fc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-06_15,2024-01-31_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 malwarescore=0 mlxscore=0 adultscore=0 mlxlogscore=801 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401310000 definitions=main-2402060171 TSO and TBS cannot co-exist. TBS requires special descriptor to be allocated at bootup. Initialising Tx queues at probe to support TSO and TBS can help in allocating those resources at bootup. TX queues with TBS can support etf qdisc hw offload. This is similar to the patch raised by NXP <3b12ec8f618e> <"net: stmmac: dwmac-imx: set TSO/TBS TX queues default settings"> Changes since v1: - Subject is changed as per upstream guidelines - Added a reference of a similar change done by NXP in body of the commit message Signed-off-by: Abhishek Chauhan --- drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index 31631e3f89d0..d2f9b8f6c027 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -728,7 +728,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev) struct stmmac_resources stmmac_res; struct device *dev = &pdev->dev; struct qcom_ethqos *ethqos; - int ret; + int ret, i; ret = stmmac_get_platform_resources(pdev, &stmmac_res); if (ret) @@ -822,6 +822,10 @@ static int qcom_ethqos_probe(struct platform_device *pdev) plat_dat->serdes_powerdown = qcom_ethqos_serdes_powerdown; } + /*Enable TSO on queue0 and enable TBS on rest of the queues*/ + for (i = 1; i < plat_dat->tx_queues_to_use; i++) + plat_dat->tx_queues_cfg[i].tbs_en = 1; + return devm_stmmac_pltfr_probe(pdev, plat_dat, &stmmac_res); }