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DateWed, 10 Feb 2010 03:47:59 +0000
Subject[RFC][PATCH] Allow change timing values to wait slow devices bring up before try register an interface to IP-Config
FromTiago Maluta <>
Sorry for previous attached patch in email.

--tm


From e414000eed1a951bf03f125f5307bc1edffcecf1 Mon Sep 17 00:00:00 2001
From: Tiago Maluta <maluta@unifei.edu.br>
Date: Wed, 10 Feb 2010 03:34:49 +0000
Subject: [RFC][PATCH] Allow change timing values to wait slow devices
bring up before try register an interface
to IP-Config (used on some drivers using Multi-purpose USB Networking
Framework)

Signed-off-by: Tiago Maluta <maluta@unifei.edu.br>
---
drivers/net/Kconfig | 18 ++++++++++++++++++
net/ipv4/ipconfig.c | 4 ++--
2 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index dd9a09c..12fbe4a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -38,6 +38,24 @@ config IFB
'ifb1' etc.
Look at the iproute2 documentation directory for usage etc

+config NETDEVICES_DELAY_PRE_OPEN
+ int "Define the delay before opening net devices (ms)"
+ depends on NETDEVICES
+ default 500
+ help
+ Some devices may not work properly due to a delay from hardware bring
+ the interface up. This value add a delay, in miilliseconds, before
+ kernel search and register the interface. Default value is 500ms.
+
+config NETDEVICES_DELAY_POST_OPEN
+ int "Define the delay after opening net devices (s)"
+ depends on NETDEVICES
+ default 1
+ help
+ Some devices may not work properly due to a delay from hardware bring
+ the interface up. This value add a delay, in seconds, after
+ kernel search and register the interface. Default value is 1s.
+
config DUMMY
tristate "Dummy net driver support"
---help---
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 10a6a60..2530126 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -86,8 +86,8 @@
#endif

/* Define the friendly delay before and after opening net devices */
-#define CONF_PRE_OPEN 500 /* Before opening: 1/2 second */
-#define CONF_POST_OPEN 1 /* After opening: 1 second */
+#define CONF_PRE_OPEN CONFIG_NETDEVICES_DELAY_PRE_OPEN /* Before
opening. Default is 1/2 second */
+#define CONF_POST_OPEN CONFIG_NETDEVICES_DELAY_POST_OPEN /* After
opening. Default is 1 second */

/* Define the timeout for waiting for a DHCP/BOOTP/RARP reply */
#define CONF_OPEN_RETRIES 2 /* (Re)open devices twice */
--
1.6.4.2

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