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 is not compatible with NET_LWIP because it depends on net_loop(), tftp_timeout_ms, tftp_timeout_count_max. Let's add a dependency of DFU_OVER_TFTP on !NET_LWIP for now.
Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- Kconfig | 40 ++++++++++++++++++++++++++++++++++++++ Makefile | 2 +- common/Kconfig | 2 +- common/spl/Kconfig | 1 + drivers/dfu/Kconfig | 2 +- drivers/fastboot/Kconfig | 4 ++-- drivers/net/phy/Kconfig | 2 +- drivers/usb/gadget/Kconfig | 2 +- net-lwip/Kconfig | 37 +++++++++++++++++++++++++++++++++++ net/Kconfig | 14 ------------- 10 files changed, 85 insertions(+), 21 deletions(-) create mode 100644 net-lwip/Kconfig
diff --git a/Kconfig b/Kconfig index 82df59f176e..b7304bd37c5 100644 --- a/Kconfig +++ b/Kconfig @@ -745,7 +745,47 @@ source "dts/Kconfig"
source "env/Kconfig"
+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 + +if NET source "net/Kconfig" +endif + +if NET_LWIP +source "net-lwip/Kconfig" +endif + +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.
source "drivers/Kconfig"
diff --git a/Makefile b/Makefile index f8206b2e30a..ceb99a2698e 100644 --- a/Makefile +++ b/Makefile @@ -859,7 +859,7 @@ libs-$(CONFIG_OF_EMBED) += dts/ libs-y += env/ libs-y += lib/ libs-y += fs/ -libs-y += net/ +libs-$(CONFIG_NET) += net/ libs-y += disk/ libs-y += drivers/ libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ diff --git a/common/Kconfig b/common/Kconfig index 5e3070e9253..807b726384d 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 6405374bcc1..f67f0a859db 100644 --- a/common/spl/Kconfig +++ b/common/spl/Kconfig @@ -1055,6 +1055,7 @@ 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 0360d9da142..c6bce82eb10 100644 --- a/drivers/dfu/Kconfig +++ b/drivers/dfu/Kconfig @@ -11,7 +11,7 @@ config DFU_OVER_USB
config DFU_OVER_TFTP bool - depends on NET + depends on NET && !NET_LWIP
if DFU config DFU_WRITE_ALT diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig index 70207573de2..05e988166fb 100644 --- a/drivers/fastboot/Kconfig +++ b/drivers/fastboot/Kconfig @@ -27,7 +27,7 @@ config USB_FUNCTION_FASTBOOT This enables the USB part of the fastboot gadget.
config UDP_FUNCTION_FASTBOOT - depends on NET + depends on NET || NET_LWIP select FASTBOOT bool "Enable fastboot protocol over UDP" help @@ -41,7 +41,7 @@ config UDP_FUNCTION_FASTBOOT_PORT The fastboot protocol requires a UDP port number.
config TCP_FUNCTION_FASTBOOT - depends on NET + depends on NET || NET_LWIP select FASTBOOT bool "Enable fastboot protocol over TCP" help diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 3d96938eaba..738752d29c2 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 4621a6fd5e6..03fe3bca197 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-lwip/Kconfig b/net-lwip/Kconfig new file mode 100644 index 00000000000..a0938964b51 --- /dev/null +++ b/net-lwip/Kconfig @@ -0,0 +1,37 @@ +# +# Network configuration (with lwIP stack) +# + +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 "DHCP support in lwIP" + depends on PROT_UDP_LWIP + help + Enable support for the DHCP protocol in lwIP. + +config PROT_DNS_LWIP + bool + depends on PROT_UDP_LWIP + +config PROT_RAW_LWIP + bool + +config PROT_TCP_LWIP + bool + +config PROT_UDP_LWIP + bool + +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. diff --git a/net/Kconfig b/net/Kconfig index 5dff6336293..4929428d2a5 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 @@ -254,12 +249,3 @@ config IPV6 address and find it, it will force using IPv6 in the network stack.
endif # if NET - -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.