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([2a01:e0a:3cb:7bb0:d888:7a58:deed:47d6]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-37d081f7482sm1506220f8f.8.2024.10.03.08.23.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Oct 2024 08:23:42 -0700 (PDT) From: Jerome Forissier To: u-boot@lists.denx.de Cc: Ilias Apalodimas , Javier Tia , Raymond Mao , Maxim Uvarov , Tim Harvey , Anton Antonov , Jerome Forissier , Tom Rini , Joe Hershberger , Ramon Fried , Simon Glass , Yang Xiwen , Kever Yang , Philip Oberfichtner , Boon Khai Ng , Robert Marko , Jonas Karlman , Neil Armstrong , Patrice Chotard , Marek Vasut Subject: [PATCH v11 04/29] sandbox: add dummy driver ETH_SANDBOX_LWIP Date: Thu, 3 Oct 2024 17:22:50 +0200 Message-Id: <1cc1dda87239c68cfa30430f08911b78cf4c69fd.1727968902.git.jerome.forissier@linaro.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Introduce ETH_SANDBOX_LWIP which enables a mock driver similar to ETH_SANDOX but without the dependencies on the legacy network stack (NET) so that it may be enabled when the lwIP stack (NET_LWIP) is introduced. The driver does nothing at this stage but its presence will allow dm_test_iommu_noiommu [1] to pass. [1] ./u-boot -T -c "ut dm dm_test_iommu_noiommu" Signed-off-by: Jerome Forissier Acked-by: Ilias Apalodimas --- drivers/net/Kconfig | 11 +++++ drivers/net/Makefile | 1 + drivers/net/sandbox-lwip.c | 85 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 97 insertions(+) create mode 100644 drivers/net/sandbox-lwip.c diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index e7d0ddfe25a..2f39ec05ac7 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -350,6 +350,17 @@ config ETH_SANDBOX This driver is particularly useful in the test/dm/eth.c tests +config ETH_SANDBOX_LWIP + depends on SANDBOX + depends on NET_LWIP + default y + bool "Sandbox: Mocked Ethernet driver (for NET_LWIP)" + help + This driver is meant as a replacement for ETH_SANDBOX when + the network stack is NET_LWIP rather than NET. It currently + does nothing, i.e. it drops the sent packets and never receives + data. + config ETH_SANDBOX_RAW depends on SANDBOX default y diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 4946a63f80f..f5ab1f5dedf 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -39,6 +39,7 @@ obj-$(CONFIG_ETH_DESIGNWARE_SOCFPGA) += dwmac_socfpga.o obj-$(CONFIG_ETH_SANDBOX) += sandbox.o obj-$(CONFIG_ETH_SANDBOX_RAW) += sandbox-raw-bus.o obj-$(CONFIG_ETH_SANDBOX_RAW) += sandbox-raw.o +obj-$(CONFIG_ETH_SANDBOX_LWIP) += sandbox-lwip.o obj-$(CONFIG_FEC_MXC) += fec_mxc.o obj-$(CONFIG_FMAN_ENET) += fm/ obj-$(CONFIG_FMAN_ENET) += fsl_mdio.o diff --git a/drivers/net/sandbox-lwip.c b/drivers/net/sandbox-lwip.c new file mode 100644 index 00000000000..3721033c310 --- /dev/null +++ b/drivers/net/sandbox-lwip.c @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2015 National Instruments + * + * (C) Copyright 2015 + * Joe Hershberger + */ + +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +static int sb_lwip_eth_start(struct udevice *dev) +{ + debug("eth_sandbox_lwip: Start\n"); + + return 0; +} + +static int sb_lwip_eth_send(struct udevice *dev, void *packet, int length) +{ + debug("eth_sandbox_lwip: Send packet %d\n", length); + + return -ENOTSUPP; +} + +static int sb_lwip_eth_recv(struct udevice *dev, int flags, uchar **packetp) +{ + return -EAGAIN; +} + +static int sb_lwip_eth_free_pkt(struct udevice *dev, uchar *packet, int length) +{ + return 0; +} + +static void sb_lwip_eth_stop(struct udevice *dev) +{ +} + +static int sb_lwip_eth_write_hwaddr(struct udevice *dev) +{ + return 0; +} + +static const struct eth_ops sb_eth_ops = { + .start = sb_lwip_eth_start, + .send = sb_lwip_eth_send, + .recv = sb_lwip_eth_recv, + .free_pkt = sb_lwip_eth_free_pkt, + .stop = sb_lwip_eth_stop, + .write_hwaddr = sb_lwip_eth_write_hwaddr, +}; + +static int sb_lwip_eth_remove(struct udevice *dev) +{ + return 0; +} + +static int sb_lwip_eth_of_to_plat(struct udevice *dev) +{ + return 0; +} + +static const struct udevice_id sb_eth_ids[] = { + { .compatible = "sandbox,eth" }, + { } +}; + +U_BOOT_DRIVER(eth_sandbox) = { + .name = "eth_lwip_sandbox", + .id = UCLASS_ETH, + .of_match = sb_eth_ids, + .of_to_plat = sb_lwip_eth_of_to_plat, + .remove = sb_lwip_eth_remove, + .ops = &sb_eth_ops, + .priv_auto = 0, + .plat_auto = sizeof(struct eth_pdata), +};