Prepare the introduction of the lwIP (lightweight IP) TCP/IP stack by adding a new net/lwip/ directory and the NET_LWIP symbol. Network support is either NO_NET, NET (legacy stack) or NET_LWIP. Subsequent commits will introduce the lwIP code, re-work the NETDEVICE integration and port some of the NET commands and features to lwIP.
SPL_NET cannot be enabled when NET_LWIP=y. SPL_NET pulls some symbols that are part of NET (such as arp_init(), arp_timeout_check(), arp_receive(), net_arp_wait_packet_ip()). lwIP support in SPL may be added later.
Similarly, DFU_TFTP and FASTBOOT are not compatible with NET_LWIP because of dependencies on net_loop(), tftp_timeout_ms, tftp_timeout_count_max and other NET things. Let's add a dependency on !NET_LWIP for now.
SANDBOX can select NET_LWIP but doing so will currently disable the eth dm tests as well as the wget tests which have strong dependencies on the NET code.
Other adjustments to Kconfig files are made to fix "unmet direct dependencies detected" for USB_FUNCTION_SDP and CMD_FASTBOOT when the default networking stack is set to NET_LWIP ("default NET_LWIP" instead of "default NET" in Kconfig).
Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- Kconfig | 29 ++++++++++++++++++ Makefile | 2 +- boot/Kconfig | 4 ++- cmd/Kconfig | 1 + common/Kconfig | 2 +- common/spl/Kconfig | 1 + drivers/dfu/Kconfig | 1 + drivers/fastboot/Kconfig | 1 + drivers/net/Kconfig | 3 ++ drivers/net/phy/Kconfig | 2 +- drivers/usb/gadget/Kconfig | 2 +- net/Kconfig | 61 +++++++++++++++++++------------------- net/Makefile | 4 +++ net/lwip/Kconfig | 49 ++++++++++++++++++++++++++++++ test/cmd/Makefile | 2 ++ test/dm/Makefile | 2 ++ 16 files changed, 131 insertions(+), 35 deletions(-) create mode 100644 net/lwip/Kconfig
diff --git a/Kconfig b/Kconfig index ab46b27999c..9e3a55798f9 100644 --- a/Kconfig +++ b/Kconfig @@ -752,8 +752,37 @@ source "dts/Kconfig"
source "env/Kconfig"
+menu Networking + +choice + prompt "Networking stack" + default NET + +config NO_NET + bool "No networking support" + +config NET + bool "Legacy U-Boot networking stack" + imply NETDEVICES + +config NET_LWIP + bool "Use lwIP for networking stack" + imply NETDEVICES + help + Include networking support based on the lwIP (lightweight IP) + TCP/IP stack (https://nongnu.org/lwip). This is a replacement for + the default U-Boot network stack and applications located in net/ + and enabled via CONFIG_NET as well as other pieces of code that + depend on CONFIG_NET (such as cmd/net.c enabled via CONFIG_CMD_NET). + Therefore the two symbols CONFIG_NET and CONFIG_NET_LWIP are mutually + exclusive. + +endchoice + source "net/Kconfig"
+endmenu + source "drivers/Kconfig"
source "fs/Kconfig" diff --git a/Makefile b/Makefile index 8711831767d..96211738b2f 100644 --- a/Makefile +++ b/Makefile @@ -859,7 +859,7 @@ libs-$(CONFIG_OF_EMBED) += dts/ libs-y += env/ libs-y += lib/ libs-y += fs/ -libs-y += net/ +libs-$(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)) += net/ libs-y += disk/ libs-y += drivers/ libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ diff --git a/boot/Kconfig b/boot/Kconfig index 925afe06a19..1d50a83a2d2 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -503,7 +503,8 @@ config BOOTMETH_ANDROID select ANDROID_AB select ANDROID_BOOT_IMAGE select CMD_BCB - select CMD_FASTBOOT + imply CMD_FASTBOOT + imply FASTBOOT if !NET_LWIP select PARTITION_TYPE_GUID select PARTITION_UUIDS help @@ -559,6 +560,7 @@ config BOOTMETH_EXTLINUX_PXE config BOOTMETH_EFILOADER bool "Bootdev support for EFI boot" depends on EFI_BINARY_EXEC + imply CMD_TFTPBOOT if CMD_NET default y help Enables support for EFI boot using bootdevs. This makes the diff --git a/cmd/Kconfig b/cmd/Kconfig index 5ef3c8a8748..3beddd72583 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1661,6 +1661,7 @@ config CMD_USB
config CMD_USB_SDP bool "sdp" + depends on USB_GADGET_DOWNLOAD select USB_FUNCTION_SDP help Enables the command "sdp" which is used to have U-Boot emulating the diff --git a/common/Kconfig b/common/Kconfig index c011ab6e820..90cee19d413 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -424,7 +424,7 @@ config LOGF_FUNC_PAD
config LOG_SYSLOG bool "Log output to syslog server" - depends on NET + depends on NET || NET_LWIP help Enables a log driver which broadcasts log records via UDP port 514 to syslog servers. diff --git a/common/spl/Kconfig b/common/spl/Kconfig index 137f94a1681..97bafa50c9e 100644 --- a/common/spl/Kconfig +++ b/common/spl/Kconfig @@ -1073,6 +1073,7 @@ config SPL_DM_SPI_FLASH
config SPL_NET bool "Support networking" + depends on !NET_LWIP help Enable support for network devices (such as Ethernet) in SPL. This permits SPL to load U-Boot over a network link rather than diff --git a/drivers/dfu/Kconfig b/drivers/dfu/Kconfig index aadd7e8cf7f..604386bb734 100644 --- a/drivers/dfu/Kconfig +++ b/drivers/dfu/Kconfig @@ -20,6 +20,7 @@ config DFU_WRITE_ALT config DFU_TFTP bool "DFU via TFTP" depends on NETDEVICES + depends on !NET_LWIP select UPDATE_COMMON select DFU_OVER_TFTP help diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig index 70207573de2..1eb460f5a02 100644 --- a/drivers/fastboot/Kconfig +++ b/drivers/fastboot/Kconfig @@ -1,5 +1,6 @@ menu "Fastboot support" depends on CMDLINE + depends on !NET_LWIP
config FASTBOOT bool diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 2f39ec05ac7..9c042808b44 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -48,6 +48,7 @@ config DM_DSA bool "Enable Driver Model for DSA switches" depends on DM_MDIO depends on PHY_FIXED + depends on !NET_LWIP help Enable driver model for DSA switches
@@ -342,6 +343,7 @@ config ESSEDMA
config ETH_SANDBOX depends on SANDBOX + depends on NET default y bool "Sandbox: Mocked Ethernet driver" help @@ -363,6 +365,7 @@ config ETH_SANDBOX_LWIP
config ETH_SANDBOX_RAW depends on SANDBOX + depends on NET default y bool "Sandbox: Bridge to Linux Raw Sockets" help diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index a9efc509814..13e73810ad6 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -11,7 +11,7 @@ config MV88E6352_SWITCH
menuconfig PHYLIB bool "Ethernet PHY (physical media interface) support" - depends on NET + depends on NET || NET_LWIP help Enable Ethernet PHY (physical media interface) support.
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index f20a16e3e7d..96ed3a2def0 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -224,7 +224,7 @@ endif # USB_GADGET_DOWNLOAD
config USB_ETHER bool "USB Ethernet Gadget" - depends on NET + depends on NET || NET_LWIP default y if ARCH_SUNXI && USB_MUSB_GADGET help Creates an Ethernet network device through a USB peripheral diff --git a/net/Kconfig b/net/Kconfig index 7cb80b880a9..16a9de47e94 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -2,11 +2,6 @@ # Network configuration #
-menuconfig NET - bool "Networking support" - default y - imply NETDEVICES - if NET
config ARP_TIMEOUT @@ -26,15 +21,6 @@ config PROT_UDP Enable a generic udp framework that allows defining a custom handler for udp protocol.
-config BOOTDEV_ETH - bool "Enable bootdev for ethernet" - depends on BOOTSTD - default y - help - Provide a bootdev for ethernet so that is it possible to boot - an operationg system over the network, using the PXE (Preboot - Execution Environment) protocol. - config BOOTP_SEND_HOSTNAME bool "Send hostname to DNS server" help @@ -45,15 +31,6 @@ config BOOTP_SEND_HOSTNAME of the "hostname" environment variable is passed as option 12 to the DHCP server.
-config NET_RANDOM_ETHADDR - bool "Random ethaddr if unset" - help - Selecting this will allow the Ethernet interface to function even - when the ethaddr variable for that interface is unset. In this case, - a random MAC address in the locally administered address space is - generated. It will be saved to the appropriate environment variable, - too. - config NETCONSOLE bool "NetConsole support" help @@ -255,11 +232,35 @@ config IPV6
endif # if NET
+source "net/lwip/Kconfig" + +if NET || NET_LWIP + +config BOOTDEV_ETH + bool "Enable bootdev for ethernet" + depends on BOOTSTD + default y + help + Provide a bootdev for ethernet so that is it possible to boot + an operating system over the network, using the PXE (Preboot + Execution Environment) protocol. + +config NET_RANDOM_ETHADDR + bool "Random ethaddr if unset" + help + Selecting this will allow the Ethernet interface to function even + when the ethaddr variable for that interface is unset. In this case, + a random MAC address in the locally administered address space is + generated. It will be saved to the appropriate environment variable, + too. + +endif # if NET || NET_LWIP + config SYS_RX_ETH_BUFFER - int "Number of receive packet buffers" - default 4 - help - Defines the number of Ethernet receive buffers. On some Ethernet - controllers it is recommended to set this value to 8 or even higher, - since all buffers can be full shortly after enabling the interface on - high Ethernet traffic. + int "Number of receive packet buffers" + default 4 + help + Defines the number of Ethernet receive buffers. On some Ethernet + controllers it is recommended to set this value to 8 or even higher, + since all buffers can be full shortly after enabling the interface on + high Ethernet traffic. diff --git a/net/Makefile b/net/Makefile index 64ab7ec740a..70eec8caf0d 100644 --- a/net/Makefile +++ b/net/Makefile @@ -5,6 +5,8 @@
#ccflags-y += -DDEBUG
+ifeq ($(CONFIG_NET),y) + obj-$(CONFIG_NET) += arp.o obj-$(CONFIG_CMD_BOOTP) += bootp.o obj-$(CONFIG_CMD_CDP) += cdp.o @@ -38,3 +40,5 @@ obj-$(CONFIG_CMD_WGET) += wget.o # sprintf(buf, index ? "foo%d" : "foo", index) # and this is intentional usage. CFLAGS_eth_common.o += -Wno-format-extra-args + +endif diff --git a/net/lwip/Kconfig b/net/lwip/Kconfig new file mode 100644 index 00000000000..8a67de4cf33 --- /dev/null +++ b/net/lwip/Kconfig @@ -0,0 +1,49 @@ +# +# Network configuration (with lwIP stack) +# + +if NET_LWIP + +config LWIP_DEBUG + bool "Enable debug traces in the lwIP library" + +config LWIP_ASSERT + bool "Enable assertions in the lwIP library" + +config PROT_DHCP_LWIP + bool + select PROT_UDP_LWIP + +config PROT_DNS_LWIP + bool + select PROT_UDP_LWIP + +config PROT_RAW_LWIP + bool + +config PROT_TCP_LWIP + bool + +config PROT_TCP_SACK_LWIP + bool "TCP SACK support" + depends on PROT_TCP_LWIP + default y + help + TCP protocol with selective acknowledgements. Improves + file transfer speed in wget. + +config PROT_UDP_LWIP + bool + +config LWIP_TCP_WND + int "Value of TCP_WND" + default 8000 if ARCH_QEMU + default 3000000 + help + Default value for TCP_WND in the lwIP configuration + Lower values result in slower wget transfer speeds in + general, especially when the latency on the network is high, + but QEMU with "-net user" needs no more than a few KB or the + transfer will stall and eventually time out. + +endif # NET_LWIP diff --git a/test/cmd/Makefile b/test/cmd/Makefile index 8f2134998ad..dbee9b26405 100644 --- a/test/cmd/Makefile +++ b/test/cmd/Makefile @@ -30,7 +30,9 @@ ifdef CONFIG_SANDBOX obj-$(CONFIG_CMD_MBR) += mbr.o obj-$(CONFIG_CMD_READ) += rw.o obj-$(CONFIG_CMD_SETEXPR) += setexpr.o +ifdef CONFIG_NET obj-$(CONFIG_CMD_WGET) += wget.o +endif obj-$(CONFIG_ARM_FFA_TRANSPORT) += armffa.o endif obj-$(CONFIG_CMD_TEMPERATURE) += temperature.o diff --git a/test/dm/Makefile b/test/dm/Makefile index c12589d487c..03952441278 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -48,7 +48,9 @@ obj-$(CONFIG_VIDEO_MIPI_DSI) += dsi_host.o obj-$(CONFIG_DM_DSA) += dsa.o obj-$(CONFIG_ECDSA_VERIFY) += ecdsa.o obj-$(CONFIG_EFI_MEDIA_SANDBOX) += efi_media.o +ifdef CONFIG_NET obj-$(CONFIG_DM_ETH) += eth.o +endif obj-$(CONFIG_EXTCON) += extcon.o ifneq ($(CONFIG_EFI_PARTITION),) obj-$(CONFIG_FASTBOOT_FLASH_MMC) += fastboot.o