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If there are packets in hardware when changing the speed
or duplex, it may cause hardware hang up.
This patch adds the code for waiting chip to clean the all
pkts(TX & RX) in chip when the driver uses the function named
"adjust link".
This patch cleans the pkts as follows:
1) close rx of chip, close tx of protocol stack.
2) wait rcb, ppe, mac to clean.
3) adjust link
4) open rx of chip, open tx of protocol stack.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are two kinds of dsaf device in hns, one is for service ports,
contains crossbar in it, can work under different mode. Another is for
debug port, only can work under "single-port" mode. The current code only
declared a dsaf device for both service ports and debug ports. This patch
separate it to three platform devices.
Here is the diagram of all port in one platform device(old):
CPU
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| DSAF(one platform device)
-------------------------------------------------------------- /
| | | | | /
| PPE PPE PPE | /
| | | | | /
| | | | | /
| crossbar | | | /
| | | | |/
| ----------------------------------- | | |
| | | | | | | | | |
| | | | | | | | | |
| MAC MAC MAC MAC MAC MAC MAC MAC |
| | | | | | | | | |
--------------------------------------------------------------
| | | | | | | |
PHY PHY PHY PHY PHY PHY PHY PHY
Here is the diagram of separate all ports to three platform(new):
CPU
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-----------------------------------
| | |
---------------------------------------------- --------- ---------
| | | | | | | |
| PPE | | PPE | | PPE |
| | | | | | | | |
| | | | | | | | |
| crossbar | | | | | | |
| | | | | | | | |
| ---------------------------------- | | | | | | |
| | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| MAC MAC MAC MAC MAC MAC | | MAC | | MAC |
| | | | | | | | | | | | | |
---------------------------------------------- --------- ---------
| | | | | | \ / | / |
PHY PHY PHY PHY PHY PHY \ / PHY / PHY
\ / /
\ / /
DSAF(three platform device)
Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Signed-off-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In chip V1, the maximum mtu value is 9600. But in chip V2, it is 9728.
And it is always configurates as 9600 before this patch.
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds the support of "TSO (TCP Segment Offload)" feature
provided by the Hip06 ethernet hardware to the HNS ethernet
driver.
Enabling this feature would help offload the TCP Segmentation
process to the Hip06 ethernet hardware. This eventually would help
in saving precious cpu cycles.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: lisheng <lisheng011@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds the support of "RSS (Receive Side Scaling)" feature
provided by the Hip06 ethernet hardware to the HNS ethernet
driver.
This feature helps in distributing the different flows (mapped as
hash by hardware using Toeplitz Hash) to different Queues asssociated
with the processor cores. The mapping of flow-hash values to the
different queues is stored in indirection table (which is per Packet-
parse-Engine/PPE). This patch also provides the changes to re-program
the (flow-hash<->Qid) mapping using the ethtool.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Reviewed-by: Kenneth Lee <liguozhu@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DSAF, namely Distributed System Area Fabric, is one of the HNS
acceleration engine implementation. This patch add DSAF driver to the
system.
hns_ae_adapt: the adaptor for registering the driver to HNAE framework
hns_dsaf_mac: MAC cover interface for GE and XGE
hns_dsaf_gmac: GE (10/100/1000G Ethernet) MAC function
hns_dsaf_xgmac: XGE (10000+G Ethernet) MAC function
hns_dsaf_main: the platform device driver for the whole hardware
hns_dsaf_misc: some misc helper function, such as LED support
hns_dsaf_ppe: packet process engine function
hns_dsaf_rcb: ring buffer function
Signed-off-by: huangdaode <huangdaode@hisilicon.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: Kenneth Lee <liguozhu@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Peng Li
Yisen.Zhuang\(Zhuangyuzeng\)
Kejian Yan
Salil
huangdaode