src-test2/sys/dev/etherswitch/etherswitch.c, branch release/11.3.0

Revert r330897:

2018-03-29T02:50:57Z

This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re)

Partial merge of the SPDX changes

2018-03-14T03:19:51Z

These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg

MFC r311700:

2017-01-13T03:08:05Z

Convert etherswitch to use the make_dev_s(9) KPI. This fix a possible race where si_drv1 can be accessed before it gets set. Suggested by: kib Sponsored by: Rubicon Communications, LLC (Netgate)

MFC r309461:

2016-12-31T01:58:04Z

Allow simultaneous access to switch device, there is no reason to prevent it. Remove bogus wrappers and use the kernel defaults. While here, use DEVMETHOD_END. Obtained from: pfSense Sponsored by: Rubicon Communications, LLC (Netgate)

Add the ability to change the vlan operation mode.

2013-05-08T20:46:54Z

This adds a vlan capability field to etherswitch_info structure and some definitions of ports flags. It adds the support to global config parameters which right now is used only to switch between the vlan modes, but it is intended to be extended to support the setup of others parameters (STP, mirror, etc.). Submitted by: Luiz Otavio O Souza Reviewed by: ray

Locking for etherswitch framework:

2012-10-15T12:20:40Z

* add lock/unlock methods; * add lock/unlock default implementation; * surround switch IOCTLs with locking; * add lock/unlock implementation for arswitch; Submitted by: Luiz Otavio O Souza Approved by: adrian (mentor)

Commit the first pass of the etherswitch support.

2012-05-11T20:53:20Z

This is designed to support the very basic ethernet switch chip behaviour, specifically: * accessing switch register space; * accessing per-PHY registers (for switches that actually expose PHYs); * basic vlan group support, which applies for the rtl8366 driver but not for the atheros switches. This also includes initial support for: * rtl8366rb support - which is a 10/100/1000 switch which supports vlan groups; * Initial Atheros AR8316 switch support - which is a 10/100/1000 switch which supports an alternate vlan configuration (so the vlan group methods are stubbed.) The general idea here is that the switch driver may speak to a variety of backend busses (mdio, i2c, spi, whatever) and expose: * If applicable, one or more MDIO busses which ethernet interfaces can then attach PHYs to via miiproxy/mdioproxy; * exposes miibusses, one for each port at the moment, so .. * .. a PHY can be exposed on each miibus, for each switch port, with all of the existing MII/ifnet framework. However: * The ifnet is manually created for now, and it isn't linked into the interface list, nor can you (currently) send/receive frames on this ifnet. At some point in the future there may be _some_ support for this, for switches with a multi-port, isolated mode. * I'm still in the process of sorting out correct(er) locking. TODO: * ray's switch code in zrouter (zrouter.org) includes a much more developed newbus API that covers the various switch methods, as well as a capability API so drivers, the switch layer and the userland utility can properly control the subset of supported features. The plan is to sort that out later, once the rest of ray's switch drivers are brought over and extended to export MII busses and PHYs. Submitted by: Stefan Bethke Reviewed by: ray