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authorJesse Brandeburg <jesse.brandeburg@intel.com>2006-01-18 13:01:30 -0800
committerJeff Garzik <jgarzik@pobox.com>2006-01-18 16:17:57 -0500
commit35ec56bb78fda9c88cd1ad30e048ce5b4398d33f (patch)
tree8dab8de21d249b735a33c262837c991e5b23aa17 /drivers
parent7eb9b2f56c9812d03ac63031869bcc42151067b1 (diff)
downloadlinux-35ec56bb78fda9c88cd1ad30e048ce5b4398d33f.tar.gz
[PATCH] e1000: Added disable packet split capability
Adds the ability to disability packet split at compile time and use the legacy receive path on PCI express hardware. Made this a CONFIG option and modified the Kconfig, to reflect the new option. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John Ronciak <john.ronciak@intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/Kconfig9
-rw-r--r--drivers/net/e1000/e1000_main.c4
2 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 1421941487c45..0c69918671caa 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1914,6 +1914,15 @@ config E1000_NAPI
If in doubt, say N.
+config E1000_DISABLE_PACKET_SPLIT
+ bool "Disable Packet Split for PCI express adapters"
+ depends on E1000
+ help
+ Say Y here if you want to use the legacy receive path for PCI express
+ hadware.
+
+ If in doubt, say N.
+
source "drivers/net/ixp2000/Kconfig"
config MYRI_SBUS
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index d0a5d1656c5fa..73b2a7be21264 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1621,7 +1621,7 @@ e1000_setup_rctl(struct e1000_adapter *adapter)
{
uint32_t rctl, rfctl;
uint32_t psrctl = 0;
-#ifdef CONFIG_E1000_PACKET_SPLIT
+#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
uint32_t pages = 0;
#endif
@@ -1672,7 +1672,7 @@ e1000_setup_rctl(struct e1000_adapter *adapter)
}
}
-#ifdef CONFIG_E1000_PACKET_SPLIT
+#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
/* 82571 and greater support packet-split where the protocol
* header is placed in skb->data and the packet data is
* placed in pages hanging off of skb_shinfo(skb)->nr_frags.