Change how TCP read-ahead is selected to better integrate with TCP write buffering

2014-01-13 13:55:51 -06:00 · 2014-01-13 13:55:51 -06:00 · ac8ace08f1
commit ac8ace08f1
parent bebedbdd9c
76 changed files with 76 additions and 0 deletions
--- a/configs/c5471evm/httpd/defconfig
+++ b/configs/c5471evm/httpd/defconfig
@ -187,6 +187,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=0
+CONFIG_NET_TCP_READAHEAD=n
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=0
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=0
--- a/configs/c5471evm/nettest/defconfig
+++ b/configs/c5471evm/nettest/defconfig
@ -187,6 +187,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=32
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/c5471evm/nsh/defconfig
+++ b/configs/c5471evm/nsh/defconfig
@ -187,6 +187,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=32
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/c5471evm/ostest/defconfig
+++ b/configs/c5471evm/ostest/defconfig
@ -187,6 +187,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=40
--- a/configs/cloudctrl/nsh/defconfig
+++ b/configs/cloudctrl/nsh/defconfig
@ -405,6 +405,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/compal_e88/nsh_highram/defconfig
+++ b/configs/compal_e88/nsh_highram/defconfig
@ -200,6 +200,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=32
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/compal_e99/nsh_compalram/defconfig
+++ b/configs/compal_e99/nsh_compalram/defconfig
@ -202,6 +202,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=32
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/compal_e99/nsh_highram/defconfig
+++ b/configs/compal_e99/nsh_highram/defconfig
@ -203,6 +203,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=32
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/eagle100/httpd/defconfig
+++ b/configs/eagle100/httpd/defconfig
@ -240,6 +240,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/eagle100/nettest/defconfig
+++ b/configs/eagle100/nettest/defconfig
@ -240,6 +240,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/eagle100/nsh/defconfig
+++ b/configs/eagle100/nsh/defconfig
@ -242,6 +242,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/eagle100/thttpd/defconfig
+++ b/configs/eagle100/thttpd/defconfig
@ -247,6 +247,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ekk-lm3s9b96/nsh/defconfig
+++ b/configs/ekk-lm3s9b96/nsh/defconfig
@ -349,6 +349,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/ez80f910200zco/dhcpd/defconfig
+++ b/configs/ez80f910200zco/dhcpd/defconfig
@ -227,6 +227,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ez80f910200zco/httpd/defconfig
+++ b/configs/ez80f910200zco/httpd/defconfig
@ -227,6 +227,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ez80f910200zco/nettest/defconfig
+++ b/configs/ez80f910200zco/nettest/defconfig
@ -227,6 +227,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ez80f910200zco/nsh/defconfig
+++ b/configs/ez80f910200zco/nsh/defconfig
@ -227,6 +227,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ez80f910200zco/poll/defconfig
+++ b/configs/ez80f910200zco/poll/defconfig
@ -227,6 +227,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/fire-stm32v2/nsh/defconfig
+++ b/configs/fire-stm32v2/nsh/defconfig
@ -450,6 +450,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
 CONFIG_NET_MAX_LISTENPORTS=16
+CONFIG_NET_TCP_READAHEAD=y
 # CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/lm3s6432-s2e/nsh/defconfig
+++ b/configs/lm3s6432-s2e/nsh/defconfig
@ -257,6 +257,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/lm3s6965-ek/discover/defconfig
+++ b/configs/lm3s6965-ek/discover/defconfig
@ -335,6 +335,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/lm3s6965-ek/nsh/defconfig
+++ b/configs/lm3s6965-ek/nsh/defconfig
@ -335,6 +335,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/lm3s6965-ek/tcpecho/defconfig
+++ b/configs/lm3s6965-ek/tcpecho/defconfig
@ -362,6 +362,7 @@ CONFIG_NET_BUFSIZE=650
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/lm3s8962-ek/nsh/defconfig
+++ b/configs/lm3s8962-ek/nsh/defconfig
@ -256,6 +256,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/lpcxpresso-lpc1768/dhcpd/defconfig
+++ b/configs/lpcxpresso-lpc1768/dhcpd/defconfig
@ -303,6 +303,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/lpcxpresso-lpc1768/nsh/defconfig
+++ b/configs/lpcxpresso-lpc1768/nsh/defconfig
@ -299,6 +299,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/lpcxpresso-lpc1768/thttpd/defconfig
+++ b/configs/lpcxpresso-lpc1768/thttpd/defconfig
@ -303,6 +303,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/mbed/hidkbd/defconfig
+++ b/configs/mbed/hidkbd/defconfig
@ -296,6 +296,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ntosd-dm320/nettest/defconfig
+++ b/configs/ntosd-dm320/nettest/defconfig
@ -189,6 +189,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ntosd-dm320/nsh/defconfig
+++ b/configs/ntosd-dm320/nsh/defconfig
@ -194,6 +194,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ntosd-dm320/poll/defconfig
+++ b/configs/ntosd-dm320/poll/defconfig
@ -189,6 +189,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ntosd-dm320/thttpd/defconfig
+++ b/configs/ntosd-dm320/thttpd/defconfig
@ -212,6 +212,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/ntosd-dm320/udp/defconfig
+++ b/configs/ntosd-dm320/udp/defconfig
@ -189,6 +189,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=0
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=0
--- a/configs/ntosd-dm320/uip/defconfig
+++ b/configs/ntosd-dm320/uip/defconfig
@ -189,6 +189,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/olimex-lpc1766stk/ftpc/defconfig
+++ b/configs/olimex-lpc1766stk/ftpc/defconfig
@ -314,6 +314,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=576
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/olimex-lpc1766stk/nettest/defconfig
+++ b/configs/olimex-lpc1766stk/nettest/defconfig
@ -392,6 +392,7 @@ CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/olimex-lpc1766stk/nsh/defconfig
+++ b/configs/olimex-lpc1766stk/nsh/defconfig
@ -402,6 +402,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/olimex-lpc1766stk/slip-httpd/defconfig
+++ b/configs/olimex-lpc1766stk/slip-httpd/defconfig
@ -314,6 +314,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=296
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/olimex-lpc1766stk/thttpd/defconfig
+++ b/configs/olimex-lpc1766stk/thttpd/defconfig
@ -309,6 +309,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/olimex-lpc1766stk/zmodem/defconfig
+++ b/configs/olimex-lpc1766stk/zmodem/defconfig
@ -417,6 +417,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/olimex-stm32-p107/nsh/defconfig
+++ b/configs/olimex-stm32-p107/nsh/defconfig
@ -513,6 +513,7 @@ CONFIG_NET_BUFSIZE=650
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/olimex-stm32-p207/nsh/defconfig
+++ b/configs/olimex-stm32-p207/nsh/defconfig
@ -550,6 +550,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=20
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/olimex-strp711/nettest/defconfig
+++ b/configs/olimex-strp711/nettest/defconfig
@ -267,6 +267,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/pic32-starterkit/nsh/defconfig
+++ b/configs/pic32-starterkit/nsh/defconfig
@ -391,6 +391,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/pic32-starterkit/nsh2/defconfig
+++ b/configs/pic32-starterkit/nsh2/defconfig
@ -390,6 +390,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/pic32-starterkit/ostest/defconfig
+++ b/configs/pic32-starterkit/ostest/defconfig
@ -388,6 +388,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/pic32mx7mmb/nsh/defconfig
+++ b/configs/pic32mx7mmb/nsh/defconfig
@ -406,6 +406,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/pic32mx7mmb/ostest/defconfig
+++ b/configs/pic32mx7mmb/ostest/defconfig
@ -388,6 +388,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/shenzhou/nsh/defconfig
+++ b/configs/shenzhou/nsh/defconfig
@ -405,6 +405,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/shenzhou/nxwm/defconfig
+++ b/configs/shenzhou/nxwm/defconfig
@ -623,6 +623,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
 CONFIG_NET_MAX_LISTENPORTS=16
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=4
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/shenzhou/thttpd/defconfig
+++ b/configs/shenzhou/thttpd/defconfig
@ -392,6 +392,7 @@ CONFIG_NET_BUFSIZE=768
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/stm3220g-eval/dhcpd/defconfig
+++ b/configs/stm3220g-eval/dhcpd/defconfig
@ -401,6 +401,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
--- a/configs/stm3220g-eval/nettest/defconfig
+++ b/configs/stm3220g-eval/nettest/defconfig
@ -401,6 +401,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
--- a/configs/stm3220g-eval/nsh/defconfig
+++ b/configs/stm3220g-eval/nsh/defconfig
@ -447,6 +447,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/stm3220g-eval/nsh2/defconfig
+++ b/configs/stm3220g-eval/nsh2/defconfig
@ -447,6 +447,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/stm3220g-eval/nxwm/defconfig
+++ b/configs/stm3220g-eval/nxwm/defconfig
@ -636,6 +636,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/stm3220g-eval/telnetd/defconfig
+++ b/configs/stm3220g-eval/telnetd/defconfig
@ -401,6 +401,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
--- a/configs/stm3240g-eval/dhcpd/defconfig
+++ b/configs/stm3240g-eval/dhcpd/defconfig
@ -407,6 +407,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
--- a/configs/stm3240g-eval/discover/defconfig
+++ b/configs/stm3240g-eval/discover/defconfig
@ -412,6 +412,7 @@ CONFIG_NET_BUFSIZE=650
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 # CONFIG_NET_TCP_READAHEAD_BUFSIZE=650
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/stm3240g-eval/nettest/defconfig
+++ b/configs/stm3240g-eval/nettest/defconfig
@ -407,6 +407,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
--- a/configs/stm3240g-eval/nsh/defconfig
+++ b/configs/stm3240g-eval/nsh/defconfig
@ -452,6 +452,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/stm3240g-eval/nsh2/defconfig
+++ b/configs/stm3240g-eval/nsh2/defconfig
@ -453,6 +453,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/stm3240g-eval/nxconsole/defconfig
+++ b/configs/stm3240g-eval/nxconsole/defconfig
@ -451,6 +451,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/stm3240g-eval/nxwm/defconfig
+++ b/configs/stm3240g-eval/nxwm/defconfig
@ -631,6 +631,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/stm3240g-eval/telnetd/defconfig
+++ b/configs/stm3240g-eval/telnetd/defconfig
@ -407,6 +407,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCPBACKLOG=n
--- a/configs/stm3240g-eval/webserver/defconfig
+++ b/configs/stm3240g-eval/webserver/defconfig
@ -452,6 +452,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/stm3240g-eval/xmlrpc/defconfig
+++ b/configs/stm3240g-eval/xmlrpc/defconfig
@ -405,6 +405,7 @@ CONFIG_NET_BUFSIZE=650
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 # CONFIG_NET_TCP_READAHEAD_BUFSIZE=650
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/stm32f4discovery/pm/defconfig
+++ b/configs/stm32f4discovery/pm/defconfig
@ -431,6 +431,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_TCP_READAHEAD=y
 #CONFIG_NET_TCP_READAHEAD_BUFSIZE
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=y
--- a/configs/teensy/nsh/defconfig
+++ b/configs/teensy/nsh/defconfig
@ -253,6 +253,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/teensy/usbmsc/defconfig
+++ b/configs/teensy/usbmsc/defconfig
@ -254,6 +254,7 @@ CONFIG_NET_SOCKOPTS=y
 CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=n
 CONFIG_NET_TCP_CONNS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCPBACKLOG=n
 CONFIG_NET_MAX_LISTENPORTS=8
--- a/configs/viewtool-stm32f107/README.txt
+++ b/configs/viewtool-stm32f107/README.txt
@ -373,6 +373,7 @@ ViewTool DP83848 Ethernet Module

      CONFIG_NET_BUFSIZE=650                 : Maximum packet size
      CONFIG_NET_RECEIVE_WINDOW=650
+      CONFIG_NET_TCP_READAHEAD=y             : Enable read-ahead buffering
      CONFIG_NET_TCP_READAHEAD_BUFSIZE=650

      CONFIG_NET_TCP=y                       : TCP support
--- a/configs/viewtool-stm32f107/netnsh/defconfig
+++ b/configs/viewtool-stm32f107/netnsh/defconfig
@ -550,6 +550,7 @@ CONFIG_NET_BUFSIZE=650
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=40
 CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=650
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/zkit-arm-1769/hello/defconfig
+++ b/configs/zkit-arm-1769/hello/defconfig
@ -395,6 +395,7 @@ CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/zkit-arm-1769/nsh/defconfig
+++ b/configs/zkit-arm-1769/nsh/defconfig
@ -434,6 +434,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/zkit-arm-1769/nxhello/defconfig
+++ b/configs/zkit-arm-1769/nxhello/defconfig
@ -430,6 +430,7 @@ CONFIG_NET_BUFSIZE=562
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=8
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
 CONFIG_NET_TCP_RECVDELAY=0
--- a/configs/zkit-arm-1769/thttpd/defconfig
+++ b/configs/zkit-arm-1769/thttpd/defconfig
@ -395,6 +395,7 @@ CONFIG_NET_BUFSIZE=420
 CONFIG_NET_TCP=y
 CONFIG_NET_TCP_CONNS=16
 CONFIG_NET_MAX_LISTENPORTS=8
+CONFIG_NET_TCP_READAHEAD=y
 CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8
 CONFIG_NET_TCP_RECVDELAY=0