Author: yongari
Date: Mon Nov 24 00:52:26 2008
New Revision: 185238
URL: http://svn.freebsd.org/changeset/base/185238
Log:
MFC r184870:
Add ale(4), a driver for Atheros AR8121/AR8113/AR8114 PCIe ethernet
controller. The controller is also known as L1E(AR8121) and
L2E(AR8113/AR8114). Unlike its predecessor Attansic L1,
AR8121/AR8113/AR8114 uses completely different Rx logic such that
it requires separate driver. Datasheet for AR81xx is not available
to open source driver writers but it shares large part of Tx and
PHY logic of L1. I still don't understand some part of register
meaning and some MAC statistics counters but the driver seems to
have no critical issues for performance and stability.
The AR81xx requires copy operation to pass received frames to upper
stack such that ale(4) consumes a lot of CPU cycles than that of
other controller. A couple of silicon bugs also adds more CPU
cycles to address the known hardware bug. However, if you have fast
CPU you can still saturate the link.
Currently ale(4) supports the following hardware features.
- MSI.
- TCP Segmentation offload.
- Hardware VLAN tag insertion/stripping with checksum offload.
- Tx TCP/UDP checksum offload and Rx IP/TCP/UDP checksum offload.
- Tx/Rx interrupt moderation.
- Hardware statistics counters.
- Jumbo frame.
- WOL.
AR81xx PCIe ethernet controllers are mainly found on ASUS EeePC or
P5Q series of ASUS motherboards. Special thanks to Jeremy Chadwick
who sent the hardware to me. Without his donation writing a driver
for AR81xx would never have been possible. Big thanks to all people
who reported feedback or tested patches.
HW donated by: koitsu
Tested by: bsam, Joao Barros <joao.barros <> gmail DOT com >
Jan Henrik Sylvester <me <> janh DOT de >
Ivan Brawley < ivan <> brawley DOT id DOT au >,
CURRENT ML
Approved by: re (kib)
Note, GENERIC kernel does NOT include ale(4) but users can still
kldload it. It was requested by re.
Added:
stable/7/sys/dev/ale/
- copied from r184870, head/sys/dev/ale/
stable/7/sys/modules/ale/
- copied from r184870, head/sys/modules/ale/
Modified:
stable/7/sys/ (props changed)
stable/7/sys/amd64/conf/GENERIC
stable/7/sys/boot/forth/loader.conf
stable/7/sys/conf/NOTES
stable/7/sys/conf/files
stable/7/sys/i386/conf/GENERIC
stable/7/sys/modules/Makefile
stable/7/sys/modules/cxgb/ (props changed)
Modified: stable/7/sys/amd64/conf/GENERIC
==============================================================================
--- stable/7/sys/amd64/conf/GENERIC Sun Nov 23 23:26:12 2008
(r185237)
+++ stable/7/sys/amd64/conf/GENERIC Mon Nov 24 00:52:26 2008
(r185238)
@@ -194,6 +194,7 @@ device vx # 3Com 3c590, 3c595
(``Vorte
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
device age # Attansic/Atheros L1 Gigabit Ethernet
+#device ale # Atheros AR8121/AR8113/AR8114 Ethernet
device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
device bfe # Broadcom BCM440x 10/100 Ethernet
device bge # Broadcom BCM570xx Gigabit Ethernet
Modified: stable/7/sys/boot/forth/loader.conf
==============================================================================
--- stable/7/sys/boot/forth/loader.conf Sun Nov 23 23:26:12 2008
(r185237)
+++ stable/7/sys/boot/forth/loader.conf Mon Nov 24 00:52:26 2008
(r185238)
@@ -208,6 +208,7 @@ pf_load="NO" # packet filter
miibus_load="NO" # miibus support, needed for some drivers
if_age_load="NO" # Attansic/Atheros L1 Gigabit Ethernet
+if_ale_load="NO" # Atheros AR8121/AR8113/AR8114 Ethernet
if_an_load="NO" # Aironet 4500/4800 802.11 wireless NICs
if_ar_load="NO" # Digi SYNC/570i
if_arl_load="NO" # Aironet Arlan 655 wireless network adapter
Modified: stable/7/sys/conf/NOTES
==============================================================================
--- stable/7/sys/conf/NOTES Sun Nov 23 23:26:12 2008 (r185237)
+++ stable/7/sys/conf/NOTES Mon Nov 24 00:52:26 2008 (r185238)
@@ -1724,6 +1724,7 @@ device miibus
# Harris (Intersil) Chipset with PCnetMobile firmware by AMD.
# age: Support for gigabit ethernet adapters based on the Attansic/Atheros
# L1 PCI express gigabit ethernet controllers.
+# ale: Support for Atheros AR8121/AR8113/AR8114 PCIe ethernet controllers.
# bce: Broadcom NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet
# adapters.
# bfe: Broadcom BCM4401 Ethernet adapter.
@@ -1868,6 +1869,7 @@ device xe
# PCI Ethernet NICs that use the common MII bus controller code.
device ae # Attansic/Atheros L2 FastEthernet
device age # Attansic/Atheros L1 Gigabit Ethernet
+device ale # Atheros AR8121/AR8113/AR8114 Ethernet
device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
device bfe # Broadcom BCM440x 10/100 Ethernet
device bge # Broadcom BCM570xx Gigabit Ethernet
Modified: stable/7/sys/conf/files
==============================================================================
--- stable/7/sys/conf/files Sun Nov 23 23:26:12 2008 (r185237)
+++ stable/7/sys/conf/files Mon Nov 24 00:52:26 2008 (r185238)
@@ -446,6 +446,7 @@ dev/aic7xxx/aic7xxx.c optional ahc
dev/aic7xxx/aic7xxx_93cx6.c optional ahc
dev/aic7xxx/aic7xxx_osm.c optional ahc
dev/aic7xxx/aic7xxx_pci.c optional ahc pci
+dev/ale/if_ale.c optional ale pci
dev/amd/amd.c optional amd
dev/amr/amr.c optional amr
dev/amr/amr_cam.c optional amr
Modified: stable/7/sys/i386/conf/GENERIC
==============================================================================
--- stable/7/sys/i386/conf/GENERIC Sun Nov 23 23:26:12 2008
(r185237)
+++ stable/7/sys/i386/conf/GENERIC Mon Nov 24 00:52:26 2008
(r185238)
@@ -204,6 +204,7 @@ device vx # 3Com 3c590, 3c595
(``Vorte
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
device age # Attansic/Atheros L1 Gigabit Ethernet
+#device ale # Atheros AR8121/AR8113/AR8114 Ethernet
device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
device bfe # Broadcom BCM440x 10/100 Ethernet
device bge # Broadcom BCM570xx Gigabit Ethernet
Modified: stable/7/sys/modules/Makefile
==============================================================================
--- stable/7/sys/modules/Makefile Sun Nov 23 23:26:12 2008
(r185237)
+++ stable/7/sys/modules/Makefile Mon Nov 24 00:52:26 2008
(r185238)
@@ -17,6 +17,7 @@ SUBDIR= ${_3dfx} \
aic7xxx \
aio \
${_amd} \
+ ale \
amr \
${_an} \
${_aout} \
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