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Miller" , Eric Dumazet , "Jakub Kicinski" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , Alexandre Torgue , "Jose Abreu" , Maxime Coquelin , , , , , , Prasad Sodagudi , Andrew Halaney , Rob Herring CC: Subject: [PATCH net-next v5 3/3] net: stmmac: Add driver support for DWMAC5 safety IRQ support Date: Mon, 11 Dec 2023 13:31:53 +0530 Message-ID: <20231211080153.3005122-4-quic_jsuraj@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231211080153.3005122-1-quic_jsuraj@quicinc.com> References: <20231211080153.3005122-1-quic_jsuraj@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: x5JuBftQhK7WbrtJsDHr2lL8fsUiMgXn X-Proofpoint-ORIG-GUID: x5JuBftQhK7WbrtJsDHr2lL8fsUiMgXn 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=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 adultscore=0 clxscore=1015 lowpriorityscore=0 mlxlogscore=999 phishscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2312110066 Add IRQ support to listen HW safety IRQ like ECC(error correction code), DPP(data path parity), FSM(finite state machine) fault and print the fault information in the kernel log. Signed-off-by: Suraj Jaiswal --- drivers/net/ethernet/stmicro/stmmac/common.h | 1 + drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 ++ .../net/ethernet/stmicro/stmmac/stmmac_main.c | 18 ++++++++++++++++++ .../ethernet/stmicro/stmmac/stmmac_platform.c | 9 +++++++++ 4 files changed, 30 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 721c1f8e892f..cb9645fe16d8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -347,6 +347,7 @@ enum request_irq_err { REQ_IRQ_ERR_SFTY_UE, REQ_IRQ_ERR_SFTY_CE, REQ_IRQ_ERR_LPI, + REQ_IRQ_ERR_SAFETY, REQ_IRQ_ERR_WOL, REQ_IRQ_ERR_MAC, REQ_IRQ_ERR_NO, diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 9f89acf31050..aa2eda6fb927 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -33,6 +33,7 @@ struct stmmac_resources { int irq; int sfty_ce_irq; int sfty_ue_irq; + int safety_common_irq; int rx_irq[MTL_MAX_RX_QUEUES]; int tx_irq[MTL_MAX_TX_QUEUES]; }; @@ -299,6 +300,7 @@ struct stmmac_priv { unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; int sfty_ce_irq; int sfty_ue_irq; + int safety_common_irq; int rx_irq[MTL_MAX_RX_QUEUES]; int tx_irq[MTL_MAX_TX_QUEUES]; /*irq name */ diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 47de466e432c..e4a0d9ec8b3f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3592,6 +3592,10 @@ static void stmmac_free_irq(struct net_device *dev, if (priv->wol_irq > 0 && priv->wol_irq != dev->irq) free_irq(priv->wol_irq, dev); fallthrough; + case REQ_IRQ_ERR_SAFETY: + if (priv->safety_common_irq > 0 && priv->safety_common_irq != dev->irq) + free_irq(priv->safety_common_irq, dev); + fallthrough; case REQ_IRQ_ERR_WOL: free_irq(dev->irq, dev); fallthrough; @@ -3798,6 +3802,18 @@ static int stmmac_request_irq_single(struct net_device *dev) } } + if (priv->safety_common_irq > 0 && priv->safety_common_irq != dev->irq) { + ret = request_irq(priv->safety_common_irq, stmmac_safety_interrupt, + 0, "safety", dev); + if (unlikely(ret < 0)) { + netdev_err(priv->dev, + "%s: alloc safety failed %d (error: %d)\n", + __func__, priv->safety_common_irq, ret); + irq_err = REQ_IRQ_ERR_SAFETY; + goto irq_error; + } + } + return 0; irq_error: @@ -7464,6 +7480,8 @@ int stmmac_dvr_probe(struct device *device, priv->lpi_irq = res->lpi_irq; priv->sfty_ce_irq = res->sfty_ce_irq; priv->sfty_ue_irq = res->sfty_ue_irq; + priv->safety_common_irq = res->safety_common_irq; + for (i = 0; i < MTL_MAX_RX_QUEUES; i++) priv->rx_irq[i] = res->rx_irq[i]; for (i = 0; i < MTL_MAX_TX_QUEUES; i++) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 1ffde555da47..41a4a253d75b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -726,6 +726,15 @@ int stmmac_get_platform_resources(struct platform_device *pdev, dev_info(&pdev->dev, "IRQ eth_lpi not found\n"); } + stmmac_res->safety_common_irq = + platform_get_irq_byname_optional(pdev, "safety"); + + if (stmmac_res->safety_common_irq < 0) { + if (stmmac_res->safety_common_irq == -EPROBE_DEFER) + return -EPROBE_DEFER; + dev_info(&pdev->dev, "IRQ safety IRQ not found\n"); + } + stmmac_res->addr = devm_platform_ioremap_resource(pdev, 0); return PTR_ERR_OR_ZERO(stmmac_res->addr);