Add what it takes to enable NETDEVICES with NET_LWIP and enable DHCP as well as the dhcp command. CMD_TFTPBOOT is selected by BOOTMETH_EFI due to this code having an implicit dependency on do_tftpb().
Note that PXE is likely non-fonctional with NET_LWIP (or at least not 100% functional) because DHCP option 209 is not supported by the lwIP library. Therefore, BOOTP_PXE_DHCP_OPTION cannot be enabled.
Signed-off-by: Jerome Forissier jerome.forissier@linaro.org Tested-by: Ilias Apalodimas ilias.apalodimas@linaro.org --- board/engicam/imx8mp/icore_mx8mp.c | 2 +- .../imx8mp_debix_model_a.c | 2 +- board/ti/am335x/board.c | 3 +- board/xilinx/common/board.c | 3 +- cmd/Kconfig | 100 +++--- cmd/Makefile | 6 +- cmd/elf.c | 2 +- cmd/net-lwip.c | 13 + common/board_r.c | 4 +- common/usb_kbd.c | 2 +- drivers/net/Kconfig | 2 +- include/net-common.h | 3 + include/net-legacy.h | 3 - include/net-lwip.h | 3 + lib/tiny-printf.c | 3 +- net/Makefile | 14 +- net/lwip/Makefile | 5 + net/lwip/dhcp.c | 130 ++++++++ net/lwip/eth_internal.h | 35 +++ net/lwip/net-lwip.c | 289 ++++++++++++++++++ net/lwip/tftp.c | 11 + 21 files changed, 573 insertions(+), 62 deletions(-) create mode 100644 cmd/net-lwip.c create mode 100644 net/lwip/Makefile create mode 100644 net/lwip/dhcp.c create mode 100644 net/lwip/eth_internal.h create mode 100644 net/lwip/net-lwip.c create mode 100644 net/lwip/tftp.c
diff --git a/board/engicam/imx8mp/icore_mx8mp.c b/board/engicam/imx8mp/icore_mx8mp.c index e2ed70caa43..bfdc447c478 100644 --- a/board/engicam/imx8mp/icore_mx8mp.c +++ b/board/engicam/imx8mp/icore_mx8mp.c @@ -33,7 +33,7 @@ static void setup_fec(void) setbits_le32(&gpr->gpr[1], BIT(22)); }
-#if CONFIG_IS_ENABLED(NET) +#if CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP) int board_phy_config(struct phy_device *phydev) { if (phydev->drv->config) diff --git a/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c b/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c index 112770ba493..c709d017483 100644 --- a/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c +++ b/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c @@ -29,7 +29,7 @@ static void setup_fec(void) setbits_le32(&gpr->gpr[1], BIT(22)); }
-#if CONFIG_IS_ENABLED(NET) +#if CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP) int board_phy_config(struct phy_device *phydev) { if (phydev->drv->config) diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index 720bf2cb3e1..774ef7ac5e3 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -900,7 +900,8 @@ int board_late_init(void) #endif
/* CPSW plat */ -#if CONFIG_IS_ENABLED(NET) && !CONFIG_IS_ENABLED(OF_CONTROL) +#if (CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP)) && \ + !CONFIG_IS_ENABLED(OF_CONTROL) struct cpsw_slave_data slave_data[] = { { .slave_reg_ofs = CPSW_SLAVE0_OFFSET, diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index 68f401e4b34..38dd80533fa 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -491,7 +491,8 @@ int board_late_init_xilinx(void) ret |= env_set_by_index("uuid", id, uuid); }
- if (!CONFIG_IS_ENABLED(NET)) + if (!(CONFIG_IS_ENABLED(NET) || + CONFIG_IS_ENABLED(NET_LWIP))) continue;
for (i = 0; i < EEPROM_HDR_NO_OF_MAC_ADDR; i++) { diff --git a/cmd/Kconfig b/cmd/Kconfig index 6d20d7597cb..211be398937 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1789,12 +1789,16 @@ config CMD_AB_SELECT
endmenu
-if NET +if NET || NET_LWIP
menuconfig CMD_NET bool "Network commands" default y
+endif + +if NET + if CMD_NET
config CMD_BOOTP @@ -1803,12 +1807,6 @@ config CMD_BOOTP help bootp - boot image via network using BOOTP/TFTP protocol
-config CMD_DHCP - bool "dhcp" - depends on CMD_BOOTP - help - Boot image via network using DHCP/TFTP protocol - config CMD_DHCP6 bool "dhcp6" depends on IPV6 @@ -1952,12 +1950,6 @@ config BOOTP_VCI_STRING default "U-Boot.arm" if ARM default "U-Boot"
-config CMD_TFTPBOOT - bool "tftpboot" - default y - help - tftpboot - load file via network using TFTP protocol - config CMD_TFTPPUT bool "tftp put" depends on CMD_TFTPBOOT @@ -2017,29 +2009,6 @@ config CMD_WGET wget is a simple command to download kernel, or other files, from a http server over TCP.
-config CMD_MII - bool "mii" - imply CMD_MDIO - help - If set, allows 802.3(clause 22) MII Management functions interface access - The management interface specified in Clause 22 provides - a simple, two signal, serial interface to connect a - Station Management entity and a managed PHY for providing access - to management parameters and services. - The interface is referred to as the MII management interface. - -config MII_INIT - bool "Call mii_init() in the mii command" - depends on CMD_MII && (MPC8XX_FEC || FSLDMAFE || MCFFEC) - -config CMD_MDIO - bool "mdio" - depends on PHYLIB - help - If set, allows Enable 802.3(clause 45) MDIO interface registers access - The MDIO interface is orthogonal to the MII interface and extends - it by adding access to more registers through indirect addressing. - config CMD_PING bool "ping" help @@ -2088,7 +2057,7 @@ config IPV6_ROUTER_DISCOVERY help Will automatically perform router solicitation on first IPv6 network operation -endif +endif # if CMD_NET
config CMD_ETHSW bool "ethsw" @@ -2098,6 +2067,56 @@ config CMD_ETHSW operations such as enabling / disabling a port and viewing/maintaining the filtering database (FDB)
+config CMD_WOL + bool "wol" + help + Wait for wake-on-lan Magic Packet + +endif # if NET + +if NET || NET_LWIP + +if CMD_NET + +config CMD_DHCP + bool "dhcp" + select PROT_DHCP_LWIP if NET_LWIP + help + Boot image via network using DHCP/TFTP protocol + +config CMD_MII + bool "mii" + imply CMD_MDIO + help + If set, allows 802.3(clause 22) MII Management functions interface access + The management interface specified in Clause 22 provides + a simple, two signal, serial interface to connect a + Station Management entity and a managed PHY for providing access + to management parameters and services. + The interface is referred to as the MII management interface. + +config MII_INIT + bool "Call mii_init() in the mii command" + depends on CMD_MII && (MPC8XX_FEC || FSLDMAFE || MCFFEC) + +config CMD_MDIO + bool "mdio" + depends on PHYLIB + help + If set, allows Enable 802.3(clause 45) MDIO interface registers access + The MDIO interface is orthogonal to the MII interface and extends + it by adding access to more registers through indirect addressing. + +config CMD_TFTPBOOT + bool "tftp" + select PROT_UDP_LWIP if NET_LWIP + default n + help + tftpboot - load file via network using TFTP protocol + Currently a placeholder (not implemented) when NET_LWIP=y. + +endif # if CMD_NET + config CMD_PXE bool "pxe" select PXE_UTILS @@ -2105,12 +2124,7 @@ config CMD_PXE help Boot image via network using PXE protocol
-config CMD_WOL - bool "wol" - help - Wait for wake-on-lan Magic Packet - -endif +endif # if NET || NET_LWIP
menu "Misc commands"
diff --git a/cmd/Makefile b/cmd/Makefile index 21d376309b9..94a3df41c6f 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -127,7 +127,11 @@ obj-y += legacy-mtd-utils.o endif obj-$(CONFIG_CMD_MUX) += mux.o obj-$(CONFIG_CMD_NAND) += nand.o -obj-$(CONFIG_CMD_NET) += net.o +ifdef CONFIG_CMD_NET +obj-$(CONFIG_NET) += net.o +obj-$(CONFIG_NET_LWIP) += net-lwip.o +CFLAGS_net-lwip.o := -I$(srctree)/lib/lwip/lwip/src/include -I$(srctree)/lib/lwip/u-boot +endif obj-$(CONFIG_ENV_SUPPORT) += nvedit.o obj-$(CONFIG_CMD_NVEDIT_EFI) += nvedit_efi.o obj-$(CONFIG_CMD_ONENAND) += onenand.o diff --git a/cmd/elf.c b/cmd/elf.c index 114f2caf7fa..6b49c613703 100644 --- a/cmd/elf.c +++ b/cmd/elf.c @@ -133,7 +133,7 @@ int do_bootvx(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) else addr = hextoul(argv[1], NULL);
-#if defined(CONFIG_CMD_NET) +#if defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_LWIP) /* * Check to see if we need to tftp the image ourselves * before starting diff --git a/cmd/net-lwip.c b/cmd/net-lwip.c new file mode 100644 index 00000000000..82edb5fd2e6 --- /dev/null +++ b/cmd/net-lwip.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <net.h> + +#if defined(CONFIG_CMD_DHCP) +U_BOOT_CMD( + dhcp, 3, 1, do_dhcp, + "boot image via network using DHCP/TFTP protocol", + "[loadAddress] [[hostIPaddr:]bootfilename]" +); +#endif diff --git a/common/board_r.c b/common/board_r.c index 1acad069d92..e5f33f40643 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -484,7 +484,7 @@ static int initr_boot_led_on(void) return 0; }
-#ifdef CONFIG_CMD_NET +#if defined(CONFIG_CMD_NET) static int initr_net(void) { puts("Net: "); @@ -749,7 +749,7 @@ static init_fnc_t init_sequence_r[] = { #ifdef CONFIG_PCI_ENDPOINT pci_ep_init, #endif -#ifdef CONFIG_CMD_NET +#if defined(CONFIG_CMD_NET) INIT_FUNC_WATCHDOG_RESET initr_net, #endif diff --git a/common/usb_kbd.c b/common/usb_kbd.c index bbfee23bc26..36107a3b278 100644 --- a/common/usb_kbd.c +++ b/common/usb_kbd.c @@ -423,7 +423,7 @@ static int usb_kbd_testc(struct stdio_dev *sdev) */ unsigned long poll_delay = CONFIG_SYS_HZ / 50;
-#ifdef CONFIG_CMD_NET +#if defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_LWIP) /* * If net_busy_flag is 1, NET transfer is running, * then we check key-pressed every second (first check may be diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index fa6fc1cb8e4..89f7411bdf3 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -97,7 +97,7 @@ config DSA_SANDBOX
menuconfig NETDEVICES bool "Network device support" - depends on NET + depends on NET || NET_LWIP select DM_ETH help You must select Y to enable any network device support diff --git a/include/net-common.h b/include/net-common.h index 6bc76658d9d..cbcac178c82 100644 --- a/include/net-common.h +++ b/include/net-common.h @@ -118,6 +118,9 @@ extern int net_restart_wrap; /* Tried all network devices */ extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ extern const u8 net_bcast_ethaddr[ARP_HLEN]; /* Ethernet broadcast address */ extern char net_boot_file_name[1024];/* Boot File name */ +extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */ +/* Indicates whether the pxe path prefix / config file was specified in dhcp option */ +extern char *pxelinux_configfile;
/** * compute_ip_checksum() - Compute IP checksum diff --git a/include/net-legacy.h b/include/net-legacy.h index ed286e3d326..ca1efd17af7 100644 --- a/include/net-legacy.h +++ b/include/net-legacy.h @@ -285,12 +285,9 @@ extern char net_hostname[32]; /* Our hostname */ #ifdef CONFIG_NET extern char net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN]; /* Our root path */ #endif -/* Indicates whether the pxe path prefix / config file was specified in dhcp option */ -extern char *pxelinux_configfile; /** END OF BOOTP EXTENTIONS **/ extern u8 net_ethaddr[ARP_HLEN]; /* Our ethernet address */ extern u8 net_server_ethaddr[ARP_HLEN]; /* Boot server enet address */ -extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */ extern struct in_addr net_server_ip; /* Server IP addr (0 = unknown) */ extern uchar *net_tx_packet; /* THE transmit packet */ extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ diff --git a/include/net-lwip.h b/include/net-lwip.h index 5c3f9e7e86c..cfd06726577 100644 --- a/include/net-lwip.h +++ b/include/net-lwip.h @@ -10,5 +10,8 @@ struct netif *net_lwip_new_netif(struct udevice *udev); struct netif *net_lwip_new_netif_noip(struct udevice *udev); void net_lwip_remove_netif(struct netif *netif); struct netif *net_lwip_get_netif(void); +int net_lwip_rx(struct udevice *udev, struct netif *netif); + +int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
#endif /* __NET_LWIP_H__ */ diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c index 64dee779c4a..cc1dfe61cf7 100644 --- a/lib/tiny-printf.c +++ b/lib/tiny-printf.c @@ -269,7 +269,8 @@ static int _vprintf(struct printf_info *info, const char *fmt, va_list va) } break; case 'p': - if (CONFIG_IS_ENABLED(NET) || _DEBUG) { + if (CONFIG_IS_ENABLED(NET) || + CONFIG_IS_ENABLED(NET_LWIP) || _DEBUG) { pointer(info, fmt, va_arg(va, void *)); /* * Skip this because it pulls in _ctype which is diff --git a/net/Makefile b/net/Makefile index 34fe50133a3..209377aeb26 100644 --- a/net/Makefile +++ b/net/Makefile @@ -12,11 +12,6 @@ obj-$(CONFIG_CMD_BOOTP) += bootp.o obj-$(CONFIG_CMD_CDP) += cdp.o obj-$(CONFIG_CMD_DNS) += dns.o obj-$(CONFIG_DM_DSA) += dsa-uclass.o -obj-$(CONFIG_$(XPL_)DM_ETH) += eth-uclass.o -obj-$(CONFIG_$(PHASE_)BOOTDEV_ETH) += eth_bootdev.o -obj-$(CONFIG_DM_MDIO) += mdio-uclass.o -obj-$(CONFIG_DM_MDIO_MUX) += mdio-mux-uclass.o -obj-$(CONFIG_$(XPL_)DM_ETH) += eth_common.o obj-$(CONFIG_CMD_LINK_LOCAL) += link_local.o obj-$(CONFIG_IPV6) += ndisc.o obj-$(CONFIG_$(XPL_)DM_ETH) += net.o @@ -43,4 +38,13 @@ CFLAGS_eth_common.o += -Wno-format-extra-args
endif
+ifeq ($(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)),y) +obj-$(CONFIG_$(XPL_)DM_ETH) += eth-uclass.o +obj-$(CONFIG_$(PHASE_)BOOTDEV_ETH) += eth_bootdev.o +obj-$(CONFIG_DM_MDIO) += mdio-uclass.o +obj-$(CONFIG_DM_MDIO_MUX) += mdio-mux-uclass.o +obj-$(CONFIG_$(XPL_)DM_ETH) += eth_common.o obj-y += net-common.o +endif + +obj-$(CONFIG_NET_LWIP) += lwip/ diff --git a/net/lwip/Makefile b/net/lwip/Makefile new file mode 100644 index 00000000000..4e92a101ddb --- /dev/null +++ b/net/lwip/Makefile @@ -0,0 +1,5 @@ +ccflags-y += -I$(srctree)/lib/lwip/lwip/src/include -I$(srctree)/lib/lwip/u-boot + +obj-$(CONFIG_$(SPL_)DM_ETH) += net-lwip.o +obj-$(CONFIG_CMD_DHCP) += dhcp.o +obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o diff --git a/net/lwip/dhcp.c b/net/lwip/dhcp.c new file mode 100644 index 00000000000..a2cc25d88f5 --- /dev/null +++ b/net/lwip/dhcp.c @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <console.h> +#include <dm/device.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <lwip/dhcp.h> +#include <lwip/dns.h> +#include <lwip/timeouts.h> +#include <net.h> +#include <time.h> + +#define DHCP_TIMEOUT_MS 10000 + +#ifdef CONFIG_CMD_TFTPBOOT +/* Boot file obtained from DHCP (if present) */ +static char boot_file_name[DHCP_BOOT_FILE_LEN]; +#endif + +static void call_lwip_dhcp_fine_tmr(void *ctx) +{ + dhcp_fine_tmr(); + sys_timeout(10, call_lwip_dhcp_fine_tmr, NULL); +} + +static int dhcp_loop(struct udevice *udev) +{ + char *ipstr = "ipaddr\0\0"; + char *maskstr = "netmask\0\0"; + char *gwstr = "gatewayip\0\0"; + unsigned long start; + struct netif *netif; + struct dhcp *dhcp; + bool bound; + int idx; + + idx = dev_seq(udev); + if (idx < 0 || idx > 99) { + log_err("unexpected idx %d\n", idx); + return CMD_RET_FAILURE; + } + + netif = net_lwip_new_netif_noip(udev); + if (!netif) + return CMD_RET_FAILURE; + + start = get_timer(0); + + if (dhcp_start(netif)) + return CMD_RET_FAILURE; + + call_lwip_dhcp_fine_tmr(NULL); + + /* Wait for DHCP to complete */ + do { + net_lwip_rx(udev, netif); + sys_check_timeouts(); + bound = dhcp_supplied_address(netif); + if (bound) + break; + if (ctrlc()) { + printf("Abort\n"); + break; + } + mdelay(1); + } while (get_timer(start) < DHCP_TIMEOUT_MS); + + sys_untimeout(call_lwip_dhcp_fine_tmr, NULL); + + if (!bound) { + net_lwip_remove_netif(netif); + return CMD_RET_FAILURE; + } + + dhcp = netif_dhcp_data(netif); + + env_set("bootfile", dhcp->boot_file_name); + + if (idx > 0) { + sprintf(ipstr, "ipaddr%d", idx); + sprintf(maskstr, "netmask%d", idx); + sprintf(gwstr, "gatewayip%d", idx); + } else { + net_ip.s_addr = dhcp->offered_ip_addr.addr; + } + + env_set(ipstr, ip4addr_ntoa(&dhcp->offered_ip_addr)); + env_set(maskstr, ip4addr_ntoa(&dhcp->offered_sn_mask)); + env_set("serverip", ip4addr_ntoa(&dhcp->server_ip_addr)); + if (dhcp->offered_gw_addr.addr != 0) + env_set(gwstr, ip4addr_ntoa(&dhcp->offered_gw_addr)); + +#ifdef CONFIG_PROT_DNS_LWIP + env_set("dnsip", ip4addr_ntoa(dns_getserver(0))); + env_set("dnsip2", ip4addr_ntoa(dns_getserver(1))); +#endif +#ifdef CONFIG_CMD_TFTPBOOT + if (dhcp->boot_file_name[0] != '\0') + strncpy(boot_file_name, dhcp->boot_file_name, + sizeof(boot_file_name)); +#endif + + printf("DHCP client bound to address %pI4 (%lu ms)\n", + &dhcp->offered_ip_addr, get_timer(start)); + + net_lwip_remove_netif(netif); + return CMD_RET_SUCCESS; +} + +int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + eth_set_current(); + + return dhcp_loop(eth_get_dev()); +} + +int dhcp_run(ulong addr, const char *fname, bool autoload) +{ + char *dhcp_argv[] = {"dhcp", NULL, }; + struct cmd_tbl cmdtp = {}; /* dummy */ + + if (autoload) { + /* Will be supported when TFTP is added */ + return -EOPNOTSUPP; + } + + return do_dhcp(&cmdtp, 0, 1, dhcp_argv); +} diff --git a/net/lwip/eth_internal.h b/net/lwip/eth_internal.h new file mode 100644 index 00000000000..0b829a8d388 --- /dev/null +++ b/net/lwip/eth_internal.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2001-2015 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * Joe Hershberger, National Instruments + */ + +#ifndef __ETH_INTERNAL_H +#define __ETH_INTERNAL_H + +/* Do init that is common to driver model and legacy networking */ +void eth_common_init(void); + +/** + * eth_env_set_enetaddr_by_index() - set the MAC address environment variable + * + * This sets up an environment variable with the given MAC address (@enetaddr). + * The environment variable to be set is defined by <@base_name><@index>addr. + * If @index is 0 it is omitted. For common Ethernet this means ethaddr, + * eth1addr, etc. + * + * @base_name: Base name for variable, typically "eth" + * @index: Index of interface being updated (>=0) + * @enetaddr: Pointer to MAC address to put into the variable + * Return: 0 if OK, other value on error + */ +int eth_env_set_enetaddr_by_index(const char *base_name, int index, + uchar *enetaddr); + +int eth_mac_skip(int index); +void eth_current_changed(void); +void eth_set_dev(struct udevice *dev); +void eth_set_current_to_next(void); + +#endif diff --git a/net/lwip/net-lwip.c b/net/lwip/net-lwip.c new file mode 100644 index 00000000000..3b08ffe3b74 --- /dev/null +++ b/net/lwip/net-lwip.c @@ -0,0 +1,289 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <dm/device.h> +#include <dm/uclass.h> +#include <lwip/ip4_addr.h> +#include <lwip/err.h> +#include <lwip/netif.h> +#include <lwip/pbuf.h> +#include <lwip/etharp.h> +#include <lwip/init.h> +#include <lwip/prot/etharp.h> +#include <net.h> + +/* xx:xx:xx:xx:xx:xx\0 */ +#define MAC_ADDR_STRLEN 18 + +#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) +void (*push_packet)(void *, int len) = 0; +#endif +int net_restart_wrap; +static uchar net_pkt_buf[(PKTBUFSRX) * PKTSIZE_ALIGN + PKTALIGN]; +uchar *net_rx_packets[PKTBUFSRX]; +uchar *net_rx_packet; +const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; +char *pxelinux_configfile; +/* Our IP addr (0 = unknown) */ +struct in_addr net_ip; + +static err_t linkoutput(struct netif *netif, struct pbuf *p) +{ + struct udevice *udev = netif->state; + void *pp = NULL; + int err; + + if ((unsigned long)p->payload % PKTALIGN) { + /* + * Some net drivers have strict alignment requirements and may + * fail or output invalid data if the packet is not aligned. + */ + pp = memalign(PKTALIGN, p->len); + if (!pp) + return ERR_ABRT; + memcpy(pp, p->payload, p->len); + } + + err = eth_get_ops(udev)->send(udev, pp ? pp : p->payload, p->len); + free(pp); + if (err) { + log_err("send error %d\n", err); + return ERR_ABRT; + } + + return ERR_OK; +} + +static err_t net_lwip_if_init(struct netif *netif) +{ + netif->output = etharp_output; + netif->linkoutput = linkoutput; + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; + + return ERR_OK; +} + +static void eth_init_rings(void) +{ + int i; + + for (i = 0; i < PKTBUFSRX; i++) + net_rx_packets[i] = net_pkt_buf + i * PKTSIZE_ALIGN; +} + +struct netif *net_lwip_get_netif(void) +{ + struct netif *netif, *found = NULL; + + NETIF_FOREACH(netif) { + if (!found) + found = netif; + else + printf("Error: more than one netif in lwIP\n"); + } + return found; +} + +static int get_udev_ipv4_info(struct udevice *dev, ip4_addr_t *ip, + ip4_addr_t *mask, ip4_addr_t *gw) +{ + char *ipstr = "ipaddr\0\0"; + char *maskstr = "netmask\0\0"; + char *gwstr = "gatewayip\0\0"; + int idx = dev_seq(dev); + char *env; + + if (idx < 0 || idx > 99) { + log_err("unexpected idx %d\n", idx); + return -1; + } + + if (idx) { + sprintf(ipstr, "ipaddr%d", idx); + sprintf(maskstr, "netmask%d", idx); + sprintf(gwstr, "gatewayip%d", idx); + } + + ip4_addr_set_zero(ip); + ip4_addr_set_zero(mask); + ip4_addr_set_zero(gw); + + env = env_get(ipstr); + if (env) + ip4addr_aton(env, ip); + + env = env_get(maskstr); + if (env) + ip4addr_aton(env, mask); + + env = env_get(gwstr); + if (env) + ip4addr_aton(env, gw); + + return 0; +} + +static struct netif *new_netif(struct udevice *udev, bool with_ip) +{ + unsigned char enetaddr[ARP_HLEN]; + char hwstr[MAC_ADDR_STRLEN]; + ip4_addr_t ip, mask, gw; + struct netif *netif; + int ret = 0; + static bool first_call = true; + + if (!udev) + return NULL; + + if (first_call) { + eth_init_rings(); + /* Pick a valid active device, if any */ + eth_init(); + lwip_init(); + first_call = false; + } + + if (eth_start_udev(udev) < 0) { + log_err("Could not start %s\n", udev->name); + return NULL; + } + + netif_remove(net_lwip_get_netif()); + + ip4_addr_set_zero(&ip); + ip4_addr_set_zero(&mask); + ip4_addr_set_zero(&gw); + + if (with_ip) + if (get_udev_ipv4_info(udev, &ip, &mask, &gw) < 0) + return NULL; + + eth_env_get_enetaddr_by_index("eth", dev_seq(udev), enetaddr); + ret = snprintf(hwstr, MAC_ADDR_STRLEN, "%pM", enetaddr); + if (ret < 0 || ret >= MAC_ADDR_STRLEN) + return NULL; + + netif = calloc(1, sizeof(struct netif)); + if (!netif) + return NULL; + + netif->name[0] = 'e'; + netif->name[1] = 't'; + + string_to_enetaddr(hwstr, netif->hwaddr); + netif->hwaddr_len = ETHARP_HWADDR_LEN; + debug("adding lwIP netif for %s with hwaddr:%s ip:%s ", udev->name, + hwstr, ip4addr_ntoa(&ip)); + debug("mask:%s ", ip4addr_ntoa(&mask)); + debug("gw:%s\n", ip4addr_ntoa(&gw)); + + if (!netif_add(netif, &ip, &mask, &gw, udev, net_lwip_if_init, + netif_input)) { + printf("error: netif_add() failed\n"); + free(netif); + return NULL; + } + + netif_set_up(netif); + netif_set_link_up(netif); + /* Routing: use this interface to reach the default gateway */ + netif_set_default(netif); + + return netif; +} + +struct netif *net_lwip_new_netif(struct udevice *udev) +{ + return new_netif(udev, true); +} + +struct netif *net_lwip_new_netif_noip(struct udevice *udev) +{ + + return new_netif(udev, false); +} + +void net_lwip_remove_netif(struct netif *netif) +{ + netif_remove(netif); + free(netif); +} + +int net_init(void) +{ + eth_set_current(); + + net_lwip_new_netif(eth_get_dev()); + + return 0; +} + +static struct pbuf *alloc_pbuf_and_copy(uchar *data, int len) +{ + struct pbuf *p, *q; + + /* We allocate a pbuf chain of pbufs from the pool. */ + p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL); + if (!p) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + return NULL; + } + + for (q = p; q != NULL; q = q->next) { + memcpy(q->payload, data, q->len); + data += q->len; + } + + LINK_STATS_INC(link.recv); + + return p; +} + +int net_lwip_rx(struct udevice *udev, struct netif *netif) +{ + struct pbuf *pbuf; + uchar *packet; + int flags; + int len; + int i; + + if (!eth_is_active(udev)) + return -EINVAL; + + flags = ETH_RECV_CHECK_DEVICE; + for (i = 0; i < ETH_PACKETS_BATCH_RECV; i++) { + len = eth_get_ops(udev)->recv(udev, flags, &packet); + flags = 0; + + if (len > 0) { + pbuf = alloc_pbuf_and_copy(packet, len); + if (pbuf) + netif->input(pbuf, netif); + } + if (len >= 0 && eth_get_ops(udev)->free_pkt) + eth_get_ops(udev)->free_pkt(udev, packet, len); + if (len <= 0) + break; + } + if (len == -EAGAIN) + len = 0; + + return len; +} + +void net_process_received_packet(uchar *in_packet, int len) +{ +#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) + if (push_packet) + (*push_packet)(in_packet, len); +#endif +} + +u32_t sys_now(void) +{ + return get_timer(0); +} diff --git a/net/lwip/tftp.c b/net/lwip/tftp.c new file mode 100644 index 00000000000..1fa246f55d9 --- /dev/null +++ b/net/lwip/tftp.c @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <net-lwip.h> + +int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + /* Not implemented */ + return CMD_RET_FAILURE; +}