From nobody Mon Apr 6 09:13:16 2026 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (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 3AFBC3CA4B3; Fri, 20 Mar 2026 15:01:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774018912; cv=none; b=LqTilBI2p2r7knM0fjXJitj+W3PQ+1NtEDwSsIZPv25t/Y9DpOk+gKpQ+fG8+FuAJ1bece7pqwEpxcdTOqo3RGHNpkkuYDfAB6mcAOhCjKpKSF08DkI/StL2hM0kx0wfXAshCuJCW5fElAAadU8Hr0AaDhZMonj7jtnExRFpplw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774018912; c=relaxed/simple; bh=5ZeaigDsPhhcxgipOpvdqwT6RrPyHUVgM8th7eetoTw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=c5w0icCB/5b+0oKhnSOmLlrMa+461AshdxunyUIW5D8RevjIJvxI/1maETn7StMNVjrDQ0xhC+hrjSOksMDPgai5dYo7wkfbtFJjhVi9lo+Ung+AzL8Xyz8HLj/YqZ0GvfcnQLJ49B/LPUBE/Em9YRvi/0LjBJnb4qPEsv5IPx4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=JLwj0dvx; arc=none smtp.client-ip=68.232.153.233 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="JLwj0dvx" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1774018911; x=1805554911; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=5ZeaigDsPhhcxgipOpvdqwT6RrPyHUVgM8th7eetoTw=; b=JLwj0dvxJ4tWsSSRW3aSJ7/eqnZRxQCN5uDbD6tlIaYFl7WIc2QbyTzw sx06STgyF9ccKdFFSCP9z4GU94sTkCKy4ru6b5riuLc1jKcSgJwNFr0kH jzu7Tibb9vVpmUe1FYsZfkZsTvFRFZnRVyJ9do3vRxgJVLT39Zm+CkZKX fOOmDHuha6bgJVB4maPcyl0Dna6A7+aaBNX5vTU6q6p5SCqpkUguTjWwA 5PGwgQ0PIUOH6YKdpoVe9EhWgdr8nHS//pdvkN0DSnnl1++/3p27sqljf QY9VE4bOfFqwJGEmnFQpNtoSdZyWRYbD852UDLDkKi8jwhbrUpBp/KGlI w==; X-CSE-ConnectionGUID: uoQg81OiQ1aIAKaIXuNqaA== X-CSE-MsgGUID: u2qjLDn9QvyHCPWvEgsy5Q== X-IronPort-AV: E=Sophos;i="6.23,130,1770620400"; d="scan'208";a="54967829" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 20 Mar 2026 08:01:49 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.58; Fri, 20 Mar 2026 08:01:30 -0700 Received: from DEN-DL-M70577.microsemi.net (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Fri, 20 Mar 2026 08:01:27 -0700 From: Daniel Machon Date: Fri, 20 Mar 2026 16:01:00 +0100 Subject: [PATCH net-next 04/10] net: lan966x: export FDMA helpers for reuse Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20260320-lan966x-pci-fdma-v1-4-ef54cb9b0c4b@microchip.com> References: <20260320-lan966x-pci-fdma-v1-0-ef54cb9b0c4b@microchip.com> In-Reply-To: <20260320-lan966x-pci-fdma-v1-0-ef54cb9b0c4b@microchip.com> To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Horatiu Vultur , Steen Hegelund , , "Alexei Starovoitov" , Daniel Borkmann , "Jesper Dangaard Brouer" , John Fastabend , Stanislav Fomichev , Herve Codina , Arnd Bergmann , Greg Kroah-Hartman CC: , , X-Mailer: b4 0.14.3 Make shared FDMA helpers non-static, so they can be reused by the PCIe FDMA implementation. Signed-off-by: Daniel Machon --- .../net/ethernet/microchip/lan966x/lan966x_fdma.c | 24 +++++++++++-------= ---- .../net/ethernet/microchip/lan966x/lan966x_main.h | 12 +++++++++++ 2 files changed, 24 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c b/driver= s/net/ethernet/microchip/lan966x/lan966x_fdma.c index 5c5ae8b36058..870f7d00d325 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c @@ -107,8 +107,8 @@ static int lan966x_fdma_rx_alloc_page_pool(struct lan96= 6x_rx *rx) return PTR_ERR_OR_ZERO(rx->page_pool); } =20 -static void lan966x_fdma_llp_configure(struct lan966x *lan966x, u64 addr, - u8 channel_id) +void lan966x_fdma_llp_configure(struct lan966x *lan966x, u64 addr, + u8 channel_id) { lan_wr(lower_32_bits(addr), lan966x, FDMA_DCB_LLP(channel_id)); lan_wr(upper_32_bits(addr), lan966x, FDMA_DCB_LLP1(channel_id)); @@ -136,7 +136,7 @@ static int lan966x_fdma_rx_alloc(struct lan966x_rx *rx) return 0; } =20 -static void lan966x_fdma_rx_start(struct lan966x_rx *rx) +void lan966x_fdma_rx_start(struct lan966x_rx *rx) { struct lan966x *lan966x =3D rx->lan966x; struct fdma *fdma =3D &rx->fdma; @@ -167,7 +167,7 @@ static void lan966x_fdma_rx_start(struct lan966x_rx *rx) lan966x, FDMA_CH_ACTIVATE); } =20 -static void lan966x_fdma_rx_disable(struct lan966x_rx *rx) +void lan966x_fdma_rx_disable(struct lan966x_rx *rx) { struct lan966x *lan966x =3D rx->lan966x; struct fdma *fdma =3D &rx->fdma; @@ -187,7 +187,7 @@ static void lan966x_fdma_rx_disable(struct lan966x_rx *= rx) lan966x, FDMA_CH_DB_DISCARD); } =20 -static void lan966x_fdma_rx_reload(struct lan966x_rx *rx) +void lan966x_fdma_rx_reload(struct lan966x_rx *rx) { struct lan966x *lan966x =3D rx->lan966x; =20 @@ -261,7 +261,7 @@ static void lan966x_fdma_tx_activate(struct lan966x_tx = *tx) lan966x, FDMA_CH_ACTIVATE); } =20 -static void lan966x_fdma_tx_disable(struct lan966x_tx *tx) +void lan966x_fdma_tx_disable(struct lan966x_tx *tx) { struct lan966x *lan966x =3D tx->lan966x; struct fdma *fdma =3D &tx->fdma; @@ -293,7 +293,7 @@ static void lan966x_fdma_tx_reload(struct lan966x_tx *t= x) lan966x, FDMA_CH_RELOAD); } =20 -static void lan966x_fdma_wakeup_netdev(struct lan966x *lan966x) +void lan966x_fdma_wakeup_netdev(struct lan966x *lan966x) { struct lan966x_port *port; int i; @@ -308,7 +308,7 @@ static void lan966x_fdma_wakeup_netdev(struct lan966x *= lan966x) } } =20 -static void lan966x_fdma_stop_netdev(struct lan966x *lan966x) +void lan966x_fdma_stop_netdev(struct lan966x *lan966x) { struct lan966x_port *port; int i; @@ -467,7 +467,7 @@ static struct sk_buff *lan966x_fdma_rx_get_frame(struct= lan966x_rx *rx, return NULL; } =20 -static int lan966x_fdma_napi_poll(struct napi_struct *napi, int weight) +int lan966x_fdma_napi_poll(struct napi_struct *napi, int weight) { struct lan966x *lan966x =3D container_of(napi, struct lan966x, napi); struct lan966x_rx *rx =3D &lan966x->rx; @@ -580,7 +580,7 @@ static int lan966x_fdma_get_next_dcb(struct lan966x_tx = *tx) return -1; } =20 -static void lan966x_fdma_tx_start(struct lan966x_tx *tx) +void lan966x_fdma_tx_start(struct lan966x_tx *tx) { struct lan966x *lan966x =3D tx->lan966x; =20 @@ -798,7 +798,7 @@ static int lan966x_fdma_get_max_mtu(struct lan966x *lan= 966x) return max_mtu; } =20 -static int lan966x_qsys_sw_status(struct lan966x *lan966x) +int lan966x_qsys_sw_status(struct lan966x *lan966x) { return lan_rd(lan966x, QSYS_SW_STATUS(CPU_PORT)); } @@ -842,7 +842,7 @@ static int lan966x_fdma_reload(struct lan966x *lan966x,= int new_mtu) return err; } =20 -static int lan966x_fdma_get_max_frame(struct lan966x *lan966x) +int lan966x_fdma_get_max_frame(struct lan966x *lan966x) { return lan966x_fdma_get_max_mtu(lan966x) + IFH_LEN_BYTES + diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h b/driver= s/net/ethernet/microchip/lan966x/lan966x_main.h index eea286c29474..a1f590f81cbb 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.h +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.h @@ -561,6 +561,18 @@ int lan966x_fdma_init(struct lan966x *lan966x); void lan966x_fdma_deinit(struct lan966x *lan966x); irqreturn_t lan966x_fdma_irq_handler(int irq, void *args); int lan966x_fdma_reload_page_pool(struct lan966x *lan966x); +int lan966x_fdma_napi_poll(struct napi_struct *napi, int weight); +void lan966x_fdma_llp_configure(struct lan966x *lan966x, u64 addr, + u8 channel_id); +void lan966x_fdma_rx_start(struct lan966x_rx *rx); +void lan966x_fdma_rx_disable(struct lan966x_rx *rx); +void lan966x_fdma_rx_reload(struct lan966x_rx *rx); +void lan966x_fdma_tx_start(struct lan966x_tx *tx); +void lan966x_fdma_tx_disable(struct lan966x_tx *tx); +void lan966x_fdma_wakeup_netdev(struct lan966x *lan966x); +void lan966x_fdma_stop_netdev(struct lan966x *lan966x); +int lan966x_fdma_get_max_frame(struct lan966x *lan966x); +int lan966x_qsys_sw_status(struct lan966x *lan966x); =20 int lan966x_lag_port_join(struct lan966x_port *port, struct net_device *brport_dev, --=20 2.34.1