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authorkevans@FreeBSD.org <kevans@FreeBSD.org>2018-02-14 17:02:15 -0600
committerJoe Hershberger <joe.hershberger@ni.com>2018-03-22 15:05:27 -0500
commit66526e70381dbaad58533cfbd7bce07c668205c6 (patch)
treec37d3a1d4fd93dbe5f35d6a0f357ca127f12531e /drivers/net/phy/Kconfig
parent2511930193a420eb8bb6cfa9c60912626f68ae67 (diff)
net: phy: Add PHY_RTL8211E_PINE64_GIGABIT_FIX for realtek phys
Setting PHY_RTL8211E_PINE64_GIGABIT_FIX forces internal rx/tx delays off on the PHY, as well as flipping some magical undocumented bits. The magic number comes from the Pine64 engineering team, presumably as a proxy from Realtek. This configuration fixes the throughput on some Pine64 models. Packet loss of up to 60-70% has been observed without this. Signed-off-by: Kyle Evans <kevans@FreeBSD.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers/net/phy/Kconfig')
-rw-r--r--drivers/net/phy/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 25de3fb226..179e0418bc 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -139,6 +139,16 @@ config PHY_NATSEMI
config PHY_REALTEK
bool "Realtek Ethernet PHYs support"
+config RTL8211E_PINE64_GIGABIT_FIX
+ bool "Fix gigabit throughput on some Pine64+ models"
+ depends on PHY_REALTEK
+ help
+ Configure the Realtek RTL8211E found on some Pine64+ models differently to
+ fix throughput on Gigabit links, turning off all internal delays in the
+ process. The settings that this touches are not documented in the CONFREG
+ section of the RTL8211E datasheet, but come from Realtek by way of the
+ Pine64 engineering team.
+
config RTL8211X_PHY_FORCE_MASTER
bool "Ethernet PHY RTL8211x: force 1000BASE-T master mode"
depends on PHY_REALTEK