[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>
diff --git a/arch/arm/configs/ep80219_defconfig b/arch/arm/configs/ep80219_defconfig
index fbe312e..3c73b70 100644
--- a/arch/arm/configs/ep80219_defconfig
+++ b/arch/arm/configs/ep80219_defconfig
@@ -522,6 +522,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/arm/configs/iq31244_defconfig b/arch/arm/configs/iq31244_defconfig
index c07628c..3246716 100644
--- a/arch/arm/configs/iq31244_defconfig
+++ b/arch/arm/configs/iq31244_defconfig
@@ -493,6 +493,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/arm/configs/iq80321_defconfig b/arch/arm/configs/iq80321_defconfig
index 18fa161..b000da7 100644
--- a/arch/arm/configs/iq80321_defconfig
+++ b/arch/arm/configs/iq80321_defconfig
@@ -415,6 +415,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/arm/configs/iq80331_defconfig b/arch/arm/configs/iq80331_defconfig
index f50035d..46c79e1 100644
--- a/arch/arm/configs/iq80331_defconfig
+++ b/arch/arm/configs/iq80331_defconfig
@@ -496,6 +496,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/arm/configs/iq80332_defconfig b/arch/arm/configs/iq80332_defconfig
index 18b3f37..11959b7 100644
--- a/arch/arm/configs/iq80332_defconfig
+++ b/arch/arm/configs/iq80332_defconfig
@@ -496,6 +496,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index 6a431b9..3cbe6e9 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -644,6 +644,8 @@
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
+# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig
index 1d07d80..991c07b 100644
--- a/arch/ia64/configs/gensparse_defconfig
+++ b/arch/ia64/configs/gensparse_defconfig
@@ -557,6 +557,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
index b1e8f09..6859119 100644
--- a/arch/ia64/configs/tiger_defconfig
+++ b/arch/ia64/configs/tiger_defconfig
@@ -565,6 +565,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig
index 0856ca6..53899dc 100644
--- a/arch/ia64/configs/zx1_defconfig
+++ b/arch/ia64/configs/zx1_defconfig
@@ -548,6 +548,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ia64/defconfig b/arch/ia64/defconfig
index 275a26c..dcbc78a 100644
--- a/arch/ia64/defconfig
+++ b/arch/ia64/defconfig
@@ -565,6 +565,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index 955ef50..959ad3c 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -602,6 +602,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=m
CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 9d86b6b..0b1c8c1 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -626,6 +626,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig
index b657f7e..063b84f 100644
--- a/arch/powerpc/configs/cell_defconfig
+++ b/arch/powerpc/configs/cell_defconfig
@@ -533,6 +533,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig
index 3c22ccb..d6fed3f 100644
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@@ -675,6 +675,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/powerpc/configs/iseries_defconfig b/arch/powerpc/configs/iseries_defconfig
index 751a622..c775027 100644
--- a/arch/powerpc/configs/iseries_defconfig
+++ b/arch/powerpc/configs/iseries_defconfig
@@ -567,6 +567,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=m
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/powerpc/configs/maple_defconfig b/arch/powerpc/configs/maple_defconfig
index 07b6d3d..68194c0 100644
--- a/arch/powerpc/configs/maple_defconfig
+++ b/arch/powerpc/configs/maple_defconfig
@@ -454,6 +454,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 0b2b55a..6f6c6be 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -724,6 +724,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index a50ce0f..aa9893a 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -671,6 +671,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ppc/configs/bamboo_defconfig b/arch/ppc/configs/bamboo_defconfig
index 0ba4e70..41fd393 100644
--- a/arch/ppc/configs/bamboo_defconfig
+++ b/arch/ppc/configs/bamboo_defconfig
@@ -499,6 +499,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ppc/configs/katana_defconfig b/arch/ppc/configs/katana_defconfig
index 0f3bb9a..7311fe6 100644
--- a/arch/ppc/configs/katana_defconfig
+++ b/arch/ppc/configs/katana_defconfig
@@ -488,6 +488,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ppc/configs/mpc834x_sys_defconfig b/arch/ppc/configs/mpc834x_sys_defconfig
index 673dc64..b96a6d6 100644
--- a/arch/ppc/configs/mpc834x_sys_defconfig
+++ b/arch/ppc/configs/mpc834x_sys_defconfig
@@ -402,6 +402,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/ppc/configs/power3_defconfig b/arch/ppc/configs/power3_defconfig
index 93da595..a1ef929 100644
--- a/arch/ppc/configs/power3_defconfig
+++ b/arch/ppc/configs/power3_defconfig
@@ -442,6 +442,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index a3fb337..92b2fb6 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -529,6 +529,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=m
CONFIG_E1000_NAPI=y
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index 5231fe8..09a3eb7 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@@ -646,6 +646,7 @@
# CONFIG_DL2K is not set
CONFIG_E1000=y
# CONFIG_E1000_NAPI is not set
+# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 1421941..0c69918 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1914,6 +1914,15 @@
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 d0a5d16..73b2a7b 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1621,7 +1621,7 @@
{
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 @@
}
}
-#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.