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#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config ARCH_HAVE_NET
bool
default n
config ARCH_HAVE_PHY
bool
default n
config NET
bool "Networking support"
default n
select ARCH_HAVE_NET
---help---
Enable or disable all network features
if NET
config NET_NOINTS
bool "Not interrupt driven"
default n
---help---
NET_NOINT indicates that uIP is not called from the interrupt level.
If NET_NOINTS is defined, critical sections will be managed with semaphores;
Otherwise, it assumed that uIP will be called from interrupt level handling
and critical sections will be managed by enabling and disabling interrupts.
config NET_PROMISCUOUS
bool "Promiscuous mode"
default n
---help---
Force the Ethernet driver to operate in promiscuous mode (if supported
by the Ethernet driver).
menu "Driver buffer configuration"
config NET_MULTIBUFFER
bool "Use multiple device-side I/O buffers"
default n
---help---
Traditionally, uIP has used a single buffer for all incoming and
outgoing traffic. If this configuration is selected, then the
driver can manage multiple I/O buffers and can, for example,
be filling one input buffer while sending another output buffer.
Or, as another example, the driver may support queuing of concurrent
input/ouput and output transfers for better performance.
config NET_ETH_MTU
int "Ethernet packet buffer size (MTU)"
default 1294 if NET_IPv6
default 590 if !NET_IPv6
depends on NET_ETHERNET
range 590 1518
---help---
Packet buffer size. This size includes the TCP/UDP payload plus the
size of TCP/UDP header, the IP header, and the Ethernet header.
This value is normally referred to as the MTU (Maximum Transmission
Unit); the payload is the MSS (Maximum Segment Size).
IPv4 hosts are required to be able to handle an MSS of at least
536 octets, resulting in a minimum buffer size of 536+20+20+14 =
590.
IPv6 hosts are required to be able to handle an MSS of 1220 octets,
resulting in a minimum buffer size of of 1220+20+40+14 = 1294
config NET_ETH_TCP_RECVWNDO
int "Ethernet TCP receive window size"
default 1220 if NET_IPv6
default 536 if !NET_IPv6
depends on NET_ETHERNET && NET_TCP
---help---
The size of the advertised receiver's window. Should be set low
(i.e., to the size of the MSS) if the application is slow to process
incoming data, or high (32768 bytes) if the application processes
data quickly.
config NET_SLIP_MTU
int # "SLIP packet buffer size (MTU)"
default 296
depends on NET_SLIP
range 296 1518
---help---
Packet buffer size. This size includes the TCP/UDP payload plus the
size of TCP/UDP header and the IP header. This value is normally
referred to as the MTU (Maximum Transmission Unit); the payload
payload is the MSS (Maximum Segment Size). SLIP is required to
support at lest 256+20+20 = 296. Values other than 296 are not
recommended.
config NET_SLIP_TCP_RECVWNDO
int "SLIP TCP receive window size"
default 256
depends on NET_SLIP && NET_TCP
---help---
The size of the advertised receiver's window. Should be set low
(i.e., to the size of the MSS) if the application is slow to process
incoming data, or high (32768 bytes) if the application processes
data quickly.
config NET_GUARDSIZE
int "Driver I/O guard size"
default 2
---help---
Network drivers often receive packets with garbage at the end and
are longer than the size of packet in the TCP header. The following
"fudge" factor increases the size of the I/O buffering by a small
amount to allocate slightly oversize packets. After receipt, the
packet size will be chopped down to the size indicated in the TCP
header.
endmenu # Driver buffer configuration
menu "Data link support"
config NET_MULTILINK
bool
default n
config NET_ETHERNET
bool "Ethernet support"
default y if !NET_SLIP
default n if NET_SLIP
select NETDEV_MULTINIC if NET_SLIP
select NET_MULTILINK if NET_SLIP
---help---
If NET_SLIP is not selected, then Ethernet will be used (there is
no need to define anything special in the configuration file to use
Ethernet -- it is the default).
config NET_SLIP
bool "SLIP support"
default n
select NETDEV_MULTINIC if NET_ETHERNET
select NET_MULTILINK if NET_ETHERNET
---help---
Enables building of the SLIP driver. SLIP requires
at least one IP protocol selected and the following additional
network settings: NET_NOINTS and NET_MULTIBUFFER.
SLIP supports point-to-point IP communications over a serial port.
The default data link layer for uIP is Ethernet. If NET_SLIP is
defined in the NuttX configuration file, then SLIP will be supported.
The basic differences between the SLIP and Ethernet configurations is
that when SLIP is selected:
* The link level header (that comes before the IP header) is omitted.
* All MAC address processing is suppressed.
* ARP is disabled.
If NET_SLIP is not selected, then Ethernet will be used (there is
no need to define anything special in the configuration file to use
Ethernet -- it is the default).
if NET_SLIP
config SLIP_NINTERFACES
int "Number of SLIP interfaces"
default 1
---help---
Selects the number of physical SLIP
interfaces to support.
Default: 1
config SLIP_STACKSIZE
int "SLIP stack size"
default 2048
---help---
Select the stack size of the SLIP RX and TX tasks. Default: 2048
config SLIP_DEFPRIO
int "SLIP priority"
default 128
---help---
The priority of the SLIP RX and TX tasks. Default: 128
endif # NET_SLIP
endmenu # Data link support
source "net/socket/Kconfig"
source "net/netdev/Kconfig"
# source "net/ipv4/Kconfig"
# Currently cannot select both IPv4 and IPv6
config NET_IPv4
bool
default y if !NET_IPv6
default n if NET_IPv6
source "net/ipv6/Kconfig"
source "net/pkt/Kconfig"
source "net/tcp/Kconfig"
source "net/udp/Kconfig"
source "net/icmp/Kconfig"
source "net/icmpv6/Kconfig"
source "net/igmp/Kconfig"
source "net/arp/Kconfig"
source "net/iob/Kconfig"
source "net/utils/Kconfig"
config NET_STATISTICS
bool "Collect network statistics"
default n
---help---
uIP statistics on or off
source "net/route/Kconfig"
config NET_MULTICAST
bool "Multi-cast Tx support"
default n
---help---
Outgoing multi-cast address support
endif # NET
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