Commit Graph

16 Commits

Author SHA1 Message Date
Guinan Sun
d53391f1fe net/e1000/base: modify HW level time sync mechanisms
Add additional configuration space access to allow HW
level time sync mechanism.

Signed-off-by: Evgeny Efimov <evgeny.efimov@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>
2020-07-07 23:38:27 +02:00
Guinan Sun
d9013a3fb2 net/e1000/base: introduce flags for outstanding requests
Introduce flags to make flexible adjusting
number of outstanding requests.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>
2020-07-07 23:38:27 +02:00
Xiaolong Ye
41ede22ecf net/e1000: replace license text with SPDX tag
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2019-07-24 18:44:40 +02:00
Xiao Zhang
f0027fa182 net/e1000: fix buffer overrun while i219 processing DMA
Intel® 100/200 Series Chipset platforms reduced the round-trip
latency for the LAN Controller DMA accesses, causing in some high
performance cases a buffer overrun while the I219 LAN Connected
Device is processing the DMA transactions. I219LM and I219V devices
can fall into unrecovered Tx hang under very stressfully UDP traffic
and multiple reconnection of Ethernet cable. This Tx hang of the LAN
Controller is only recovered if the system is rebooted. Slightly slow
down DMA access by reducing the number of outstanding requests.
This workaround could have an impact on TCP traffic performance
on the platform. Disabling TSO eliminates performance loss for TCP
traffic without a noticeable impact on CPU performance.

Please, refer to I218/I219 specification update:
https://www.intel.com/content/www/us/en/embedded/products/networking/
ethernet-connection-i218-family-documentation.html

Cc: stable@dpdk.org

Signed-off-by: Xiao Zhang <xiao.zhang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2019-07-23 14:31:36 +02:00
Wenzhuo Lu
75a202f022 net/e1000/base: add workaround for possible stalled packet
This works around a possible stalled packet issue, which may occur due to
clock recovery from the PCH being too slow, when the LAN is transitioning
from K1 at 1G link speed.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2017-01-17 19:36:48 +01:00
Wenzhuo Lu
a3358d942f net/e1000/base: enable new I219 devices
Enable the support of new I219 devices.
Also define some registers for future usage.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2017-01-17 19:36:48 +01:00
Wenzhuo Lu
5d55afe895 net/e1000/base: clear ULP configuration register on ULP exit
There are some client PHY Ultra Low Power (ULP) register bits that are
configured by the Manageability Engine (ME) FW.

The driver must ensure that these bits are cleared on exit from ULP.
Ordinarily the ME FW would do that, but there are cases in which the
FW is not present, and the driver must handle that.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2017-01-17 19:36:48 +01:00
Wenzhuo Lu
8cce758d69 net/e1000/base: avoid packet loss for non-1G
To avoid packet loss, Phase Lock Loop (PLL) clock gate time needs to be
increased for non 1G speeds.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2017-01-17 19:36:48 +01:00
Wenzhuo Lu
d5f46be3d5 e1000/base: minor changes
Some minor code change. No functionality impact.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-10-27 16:20:37 +01:00
Wenzhuo Lu
75a7f9cfdd e1000/base: add bit to disable packetbuffer read
Added bit FEXTNVM7[18], that controls disabling MAC packet buffer read.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-10-27 16:12:57 +01:00
Wenzhuo Lu
6f934fa24d e1000/base: fix K1 configuration
This patch is for the following updates to the K1 configurations:
Tx idle period for entering K1 should be 128 ns.
Minimum Tx idle period in K1 should be 256 ns.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-10-27 16:12:56 +01:00
Wenzhuo Lu
edcdb3c5f7 e1000/base: fix link flap on 82579
Several customers have reported a link flap issue on 82579. The symptoms
are random and intermittent link losses when 82579 is connected to specific
switches. Issue has been root caused as interoperability problem between
the NIC and at least some Broadcom PHYs in the Energy Efficient Ethernet
wake mechanism.
To fix the issue, we are disabling the Phase Locked Loop shutdown in 100M
Low Power Idle. This solution will cause an increase of power in 100M EEE
link. It may cost additional 28mW in this specific mode.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-10-27 14:20:24 +01:00
Wenzhuo Lu
ea613aefc2 e1000/base: return error in resume workaround
Add u32 return value to function e1000_resume_workarounds_pchlan,
so that calling function can detect PHY access failure during resuming
flow.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-10-27 14:20:24 +01:00
Wenzhuo Lu
cdef79acc2 e1000/base: cleanup unused tag
Remove all NAHUM6LP_HW tags.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-10-27 14:20:23 +01:00
Wenzhuo Lu
36b2330acc e1000/base: update readme and copyright
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-10-26 21:46:37 +01:00
Bruce Richardson
d15fcf76c8 e1000: move to drivers/net/
Move e1000 pmd to drivers/net directory
As part of move, rename "e1000" subdirectory, which contains the code
from the "base driver", to "base".

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-05-22 15:51:38 +02:00