[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>
2006-01-18 13:01:30 -08:00 · 2006-01-18 13:01:30 -08:00 · 35ec56bb78
parent 7eb9b2f56c
commit 35ec56bb78
26 changed files with 36 additions and 2 deletions
--- a/arch/arm/configs/ep80219_defconfig
+++ b/arch/arm/configs/ep80219_defconfig
@ -522,6 +522,7 @@ CONFIG_E100=y
 # 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
--- a/arch/arm/configs/iq31244_defconfig
+++ b/arch/arm/configs/iq31244_defconfig
@ -493,6 +493,7 @@ CONFIG_NETDEVICES=y
 # 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
--- a/arch/arm/configs/iq80321_defconfig
+++ b/arch/arm/configs/iq80321_defconfig
@ -415,6 +415,7 @@ CONFIG_NETDEVICES=y
 # 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
--- a/arch/arm/configs/iq80331_defconfig
+++ b/arch/arm/configs/iq80331_defconfig
@ -496,6 +496,7 @@ CONFIG_NETDEVICES=y
 # 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
--- a/arch/arm/configs/iq80332_defconfig
+++ b/arch/arm/configs/iq80332_defconfig
@ -496,6 +496,7 @@ CONFIG_NETDEVICES=y
 # 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
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@ -644,6 +644,8 @@ CONFIG_8139TOO_PIO=y
 # 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
--- a/arch/ia64/configs/gensparse_defconfig
+++ b/arch/ia64/configs/gensparse_defconfig
@ -557,6 +557,7 @@ CONFIG_E100=m
 # 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
--- a/arch/ia64/configs/tiger_defconfig
+++ b/arch/ia64/configs/tiger_defconfig
@ -565,6 +565,7 @@ CONFIG_E100=m
 # 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
--- a/arch/ia64/configs/zx1_defconfig
+++ b/arch/ia64/configs/zx1_defconfig
@ -548,6 +548,7 @@ CONFIG_E100=y
 # 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
--- a/arch/ia64/defconfig
+++ b/arch/ia64/defconfig
@ -565,6 +565,7 @@ CONFIG_E100=m
 # 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
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@ -602,6 +602,7 @@ CONFIG_ACENIC_OMIT_TIGON_I=y
 # 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
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@ -626,6 +626,7 @@ CONFIG_ACENIC=m
 # 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
--- a/arch/powerpc/configs/cell_defconfig
+++ b/arch/powerpc/configs/cell_defconfig
@ -533,6 +533,7 @@ CONFIG_MII=y
 # 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
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@ -675,6 +675,7 @@ CONFIG_ACENIC_OMIT_TIGON_I=y
 # 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
--- a/arch/powerpc/configs/iseries_defconfig
+++ b/arch/powerpc/configs/iseries_defconfig
@ -567,6 +567,7 @@ CONFIG_ACENIC=m
 # 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
--- a/arch/powerpc/configs/maple_defconfig
+++ b/arch/powerpc/configs/maple_defconfig
@ -454,6 +454,7 @@ CONFIG_AMD8111_ETH=y
 # 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
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@ -724,6 +724,7 @@ CONFIG_ACENIC_OMIT_TIGON_I=y
 # 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
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@ -671,6 +671,7 @@ CONFIG_ACENIC_OMIT_TIGON_I=y
 # 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
--- a/arch/ppc/configs/bamboo_defconfig
+++ b/arch/ppc/configs/bamboo_defconfig
@ -499,6 +499,7 @@ CONFIG_NATSEMI=y
 # 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
--- a/arch/ppc/configs/katana_defconfig
+++ b/arch/ppc/configs/katana_defconfig
@ -488,6 +488,7 @@ CONFIG_E100=y
 # 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
--- a/arch/ppc/configs/mpc834x_sys_defconfig
+++ b/arch/ppc/configs/mpc834x_sys_defconfig
@ -402,6 +402,7 @@ CONFIG_E100=y
 # 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
--- a/arch/ppc/configs/power3_defconfig
+++ b/arch/ppc/configs/power3_defconfig
@ -442,6 +442,7 @@ CONFIG_E100=y
 # 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
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@ -529,6 +529,7 @@ CONFIG_NET_PCI=y
 # 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
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@ -646,6 +646,7 @@ CONFIG_8139TOO=y
 # 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
--- 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
--- 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.