From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C7D71CFD313 for ; Mon, 24 Nov 2025 13:59:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=sNLMT8BGAxrIRpFAvvcFUZZvv0HKxRcL7O2gsIcetn0=; b=zAvRXC1awQMfLIwF6J2ZQK8NIV B0Yce8Fq6z9rC8rbNxILRjkr7SsC5Wi0Aqe1HJD/w3X0T99f8qGKst28cGgVAhltL2whFnNK3awKM n2KLIeXHgYH8FTCW9AqhUTW4T5Xbc3quH+wbrs78oPX/0TK+dFXjMho2R7iw9HP52sDKFBQ4m7tTK RrcuOSdoW95YMHbYP2kBIxA4GlBTlGmKQA6eI9q6NRUC1S2NoQ4LQ8aUomFi24W3ZaG+lehsv9gsV Z06fUGIhhpTzfZfmkUU4wLsKnmvKPoVrFFlLHr3TXtlvBsKBm15jq1CPk5D/BHJ/ZMf44AiUQie97 pQbkZaoA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNX62-0000000BnRX-38wH; Mon, 24 Nov 2025 13:59:14 +0000 Received: from server.couthit.com ([162.240.164.96]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNX60-0000000BnPY-1Csl for linux-arm-kernel@lists.infradead.org; Mon, 24 Nov 2025 13:59:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=couthit.com ; s=default; h=Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject :Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=sNLMT8BGAxrIRpFAvvcFUZZvv0HKxRcL7O2gsIcetn0=; b=FV8i0ijRTWYbfFIlvDsW0/dJhX i1k3nErdTOob8sGXY6wHaMgs3I0NwYQAZ0xxU3OfPCZqCD/39gwJJ3yEpK4q21i9NoDbUxW8mC0NC VGd+NoJ/B50TfpL4iWuLFU667OVt5n/Q16HbJaASzvFGBtXZWS7K1u+i4ZDIHzY01IZn6HPMeBQo7 DTsZUm45N7a1awGJ8ZuS1mV2XLa3gmVO1/EMLd7GTCei0/+yKzOrxaHpjnTZNOXVV69W3BMoFCNHq AeXqmSH4Gz0voHHc33LfLaWAfy1icLIH6CsMTjjpHtCa2DhpdTMRhIAEgunDEDwX5b1olC1izMtsq Sgv5ofEQ==; Received: from [122.175.9.182] (port=7534 helo=cypher.couthit.local) by server.couthit.com with esmtpa (Exim 4.98.1) (envelope-from ) id 1vNX5I-0000000AbSO-2Z9o; Mon, 24 Nov 2025 08:58:29 -0500 From: Parvathi Pudi To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, danishanwar@ti.com, parvathi@couthit.com, rogerq@kernel.org, pmohan@couthit.com, basharath@couthit.com, afd@ti.com Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, alok.a.tiwari@oracle.com, horms@kernel.org, pratheesh@ti.com, j-rameshbabu@ti.com, vigneshr@ti.com, praneeth@ti.com, srk@ti.com, rogerq@ti.com, krishna@couthit.com, mohan@couthit.com Subject: [PATCH net-next v6 0/3] STP/RSTP SWITCH support for PRU-ICSSM Ethernet driver Date: Mon, 24 Nov 2025 19:25:09 +0530 Message-ID: <20251124135800.2219431-1-parvathi@couthit.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server.couthit.com X-AntiAbuse: Original Domain - lists.infradead.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - couthit.com X-Get-Message-Sender-Via: server.couthit.com: authenticated_id: parvathi@couthit.com X-Authenticated-Sender: server.couthit.com: parvathi@couthit.com X-Source: X-Source-Args: X-Source-Dir: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251124_055912_421479_004C299D X-CRM114-Status: GOOD ( 14.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, The DUAL-EMAC patch series for Megabit Industrial Communication Sub-system (ICSSM), which provides the foundational support for Ethernet functionality over PRU-ICSS on the TI SOCs (AM335x, AM437x, and AM57x), was merged into net-next recently [1]. This patch series enhances the PRU-ICSSM Ethernet driver to support bridge (STP/RSTP) SWITCH mode, which has been implemented using the "switchdev" framework and interacts with the "mstp daemon" for STP and RSTP management in userspace. When the SWITCH mode is enabled, forwarding of Ethernet packets using either the traditional store-and-forward mechanism or via cut-through is offloaded to the two PRU based Ethernet interfaces available within the ICSSM. The firmware running on the PRU inspects the bridge port states and performs necessary checks before forwarding a packet. This improves the overall system performance and significantly reduces the packet forwarding latency. Protocol switching from Dual-EMAC to bridge (STP/RSTP) SWITCH mode can be done as follows. Assuming eth2 and eth3 are the two physical ports of the ICSS2 instance: >> brctl addbr br0 >> ip maddr add 01:80:c2:00:00:00 dev br0 >> ip link set dev br0 address $(cat /sys/class/net/eth2/address) >> brctl addif br0 eth2 >> brctl addif br0 eth3 >> mstpd >> brctl stp br0 on # STP to RSTP mode >> mstpctl setforcevers br0 rstp >> ip link set dev br0 up To revert back to the default dual EMAC mode, the steps are as follows: >> ip link set dev br0 down >> brctl delif br0 eth2 >> brctl delif br0 eth3 >> brctl delbr br0 The patches presented in this series have gone through the patch verification tools and no warnings or errors are reported. Sample test logs obtained from AM33x, AM43x and AM57x verifying the functionality on Linux next kernel are available here: [Interface up Testing](https://gist.github.com/ParvathiPudi/d75fdcde27e6dc66b732958eb8e969d5) [Ping Testing](https://gist.github.com/ParvathiPudi/d3d708ffd4ffd78eb77ae06622ed0be2) [Iperf Testing](https://gist.github.com/ParvathiPudi/d19c44a19313c2b63cfe87e5a4607917) [1] https://lore.kernel.org/all/20250912104741.528721-1-parvathi@couthit.com/ This is the v6 of the patch series [v1]. This version of the patchset addresses the comments made on [v5] of the series. Changes from v5 to v6: *) Addressed Simon Horman comments on patch 1, 2 and 3 of the series. *) Rebased the series on latest net-next. Changes from v4 to v5: *) Addressed ALOK TIWARI comments on patch 1 of the series. *) Rebased the series on latest net-next. Changes from v3 to v4: *) Addressed Andrew Lunn comments on patch 1 and 2 of the series. *) Rebased the series on latest net-next. Changes from v2 to v3: *) Dropped the RFC tag. *) Addressed MD Danish Anwar comments on patch 3 of the series. *) Rebased the series on latest net-next. Changes from v1 to v2 : *) Added RFC tag as net-next is closed now. *) Updated the cover letter of the series to generalize and indicate support for both STP and RSTP along with subject change as per Andrew Lunn's suggestion. *) Addressed the Andrew Lunn's comments on patch 1 of the series. *) Rebased the series on latest net-next. [v1] https://lore.kernel.org/all/20250925141246.3433603-1-parvathi@couthit.com/ [v2] https://lore.kernel.org/all/20251006104908.775891-1-parvathi@couthit.com/ [v3] https://lore.kernel.org/all/20251014124018.1596900-1-parvathi@couthit.com/ [v4] https://lore.kernel.org/all/20251110125539.31052-1-parvathi@couthit.com/ [v5] https://lore.kernel.org/all/20251113101229.675141-1-parvathi@couthit.com/ Thanks and Regards, Parvathi. Roger Quadros (3): net: ti: icssm-prueth: Adds helper functions to configure and maintain FDB net: ti: icssm-prueth: Adds switchdev support for icssm_prueth driver net: ti: icssm-prueth: Adds support for ICSSM RSTP switch drivers/net/ethernet/ti/Makefile | 2 +- drivers/net/ethernet/ti/icssm/icssm_prueth.c | 517 +++++++- drivers/net/ethernet/ti/icssm/icssm_prueth.h | 20 +- .../ethernet/ti/icssm/icssm_prueth_fdb_tbl.h | 76 ++ .../ethernet/ti/icssm/icssm_prueth_switch.c | 1059 +++++++++++++++++ .../ethernet/ti/icssm/icssm_prueth_switch.h | 37 + drivers/net/ethernet/ti/icssm/icssm_switch.h | 103 ++ .../net/ethernet/ti/icssm/icssm_switchdev.c | 338 ++++++ .../net/ethernet/ti/icssm/icssm_switchdev.h | 13 + .../ti/icssm/icssm_vlan_mcast_filter_mmap.h | 120 ++ 10 files changed, 2262 insertions(+), 23 deletions(-) create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth_fdb_tbl.h create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth_switch.c create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth_switch.h create mode 100644 drivers/net/ethernet/ti/icssm/icssm_switchdev.c create mode 100644 drivers/net/ethernet/ti/icssm/icssm_switchdev.h create mode 100644 drivers/net/ethernet/ti/icssm/icssm_vlan_mcast_filter_mmap.h -- 2.43.0