mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 11:21:33 +00:00
e7f44b65b5
- Rewrite of the unflattening code to avoid recursion and lessen the stack usage. - Rewrite of the phandle args parsing code to get rid of the fixed args size. This is needed for IOMMU code. - Sync to latest dtc which adds more dts style checking. These warnings are enabled with "W=1" compiles. - Tegra documentation updates related to the above warnings. - A bunch of spelling and other doc fixes. - Various vendor prefix additions. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJXP3OZAAoJEPr7XbWNvGHDEUAQAJLbR9Js7RENPGX/u0NSJNaJ yQhyNVsz/BkAWFfWT6YEfyNnDY0UcRs2N9RHb+z65TsX1jvJJxLRDLRfz+rExfiZ cA1RJaF77kPOdA0eZapJIzPvAf97Zik+nzKLsqUPUSYaIzghV5rN6aR2AjXN5AYv TMQP41NwNQkxfO5I+NOssEB8IBH+DlAzg0LYXw8wNsAJc8o+DgEQjU8cxCqR0NgE SbpbJNF8tRXEJckZRC+Q7Gyn2J7VglmM/5VTFbBBwgIly2lcLADPVuX/Z6hZE3OH K7mhNWBu61vI5lU6u7q64ePeb63j+Ut/RR0tTPgjsLg0Qg0ue+6iZ66S9ZHEicbU wT4A/hjSImvZoQGGMrtUF5HGcaoMHGLGFgFc/Ouox8OQflntQBzuEx/gOQpPXcIT vdwITNW8/OGV3rgtmRO9mbdSZiAHPsydoTkIl+Ucod3nTrlEEOwgQARYO+2CfSRj sknndj26Kf+0n0tSv2d4JAEdEozp2ZPyfiAfpPXW74jOmOxeswUb3Kxx8YMwhCEl +s96rm1vtpNmJzXtuPV3eB0TydWMQ/3NXN6XOS7qEN/5y1AbQqKEoIyJOziBQMxe c9Eh/YSjsm4uw3Q0wHOI3s4hTwWfuBmwpIsANJVKrRbftPF58bMUBYU/44ReTtA8 iMsrqJpnSCcAyS8doWRY =s+gW -----END PGP SIGNATURE----- Merge tag 'devicetree-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree updates from Rob Herring: - Rewrite of the unflattening code to avoid recursion and lessen the stack usage. - Rewrite of the phandle args parsing code to get rid of the fixed args size. This is needed for IOMMU code. - Sync to latest dtc which adds more dts style checking. These warnings are enabled with "W=1" compiles. - Tegra documentation updates related to the above warnings. - A bunch of spelling and other doc fixes. - Various vendor prefix additions. * tag 'devicetree-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (52 commits) devicetree: Add Creative Technology vendor id gpio: dt-bindings: add ibm,ppc4xx-gpio binding of/unittest: Remove unnecessary module.h header inclusion drivers/of: Fix build warning in populate_node() drivers/of: Fix depth when unflattening devicetree of: dynamic: changeset prop-update revert fix drivers/of: Export of_detach_node() drivers/of: Return allocated memory from of_fdt_unflatten_tree() drivers/of: Specify parent node in of_fdt_unflatten_tree() drivers/of: Rename unflatten_dt_node() drivers/of: Avoid recursively calling unflatten_dt_node() drivers/of: Split unflatten_dt_node() of: include errno.h in of_graph.h of: document refcount incrementation of of_get_cpu_node() Documentation: dt: soc: fix spelling mistakes Documentation: dt: power: fix spelling mistake Documentation: dt: pinctrl: fix spelling mistake Documentation: dt: opp: fix spelling mistake Documentation: dt: net: fix spelling mistakes Documentation: dt: mtd: fix spelling mistake ...
77 lines
2.8 KiB
Plaintext
77 lines
2.8 KiB
Plaintext
Hisilicon Network Subsystem NIC controller
|
|
|
|
Required properties:
|
|
- compatible: "hisilicon,hns-nic-v1" or "hisilicon,hns-nic-v2".
|
|
"hisilicon,hns-nic-v1" is for hip05.
|
|
"hisilicon,hns-nic-v2" is for Hi1610 and Hi1612.
|
|
- ae-handle: accelerator engine handle for hns,
|
|
specifies a reference to the associating hardware driver node.
|
|
see Documentation/devicetree/bindings/net/hisilicon-hns-dsaf.txt
|
|
- port-id: is the index of port provided by DSAF (the accelerator). DSAF can
|
|
connect to 8 PHYs. Port 0 to 1 are both used for administration purpose. They
|
|
are called debug ports.
|
|
|
|
The remaining 6 PHYs are taken according to the mode of DSAF.
|
|
|
|
In NIC mode of DSAF, all 6 PHYs are taken as ethernet ports to the CPU. The
|
|
port-id can be 2 to 7. Here is the diagram:
|
|
+-----+---------------+
|
|
| CPU |
|
|
+-+-+-+---+-+-+-+-+-+-+
|
|
| | | | | | | |
|
|
debug service
|
|
port port
|
|
(0,1) (2-7)
|
|
|
|
In Switch mode of DSAF, all 6 PHYs are taken as physical ports connect to a
|
|
LAN Switch while the CPU side assume itself have one single NIC connect to
|
|
this switch. In this case, the port-id will be 2 only.
|
|
+-----+---------------+
|
|
| CPU |
|
|
+-+-+-+---+-+-+-+-+-+-+
|
|
| | service| port(2)
|
|
debug +------------+
|
|
port | switch |
|
|
(0,1) +-+-+-+-+-+-++
|
|
| | | | | |
|
|
external port
|
|
|
|
This attribute is remained for compatible purpose. It is not recommended to
|
|
use it in new code.
|
|
|
|
- port-idx-in-ae: is the index of port provided by AE.
|
|
In NIC mode of DSAF, all 6 PHYs of service DSAF are taken as ethernet ports
|
|
to the CPU. The port-idx-in-ae can be 0 to 5. Here is the diagram:
|
|
+-----+---------------+
|
|
| CPU |
|
|
+-+-+-+---+-+-+-+-+-+-+
|
|
| | | | | | | |
|
|
debug debug service
|
|
port port port
|
|
(0) (0) (0-5)
|
|
|
|
In Switch mode of DSAF, all 6 PHYs of service DSAF are taken as physical
|
|
ports connected to a LAN Switch while the CPU side assume itself have one
|
|
single NIC connected to this switch. In this case, the port-idx-in-ae
|
|
will be 0 only.
|
|
+-----+-----+------+------+
|
|
| CPU |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| | service| port(0)
|
|
debug debug +------------+
|
|
port port | switch |
|
|
(0) (0) +-+-+-+-+-+-++
|
|
| | | | | |
|
|
external port
|
|
|
|
- local-mac-address: mac addr of the ethernet interface
|
|
|
|
Example:
|
|
|
|
ethernet@0{
|
|
compatible = "hisilicon,hns-nic-v1";
|
|
ae-handle = <&dsaf0>;
|
|
port-idx-in-ae = <0>;
|
|
local-mac-address = [a2 14 e4 4b 56 76];
|
|
};
|