USB4 acknowledge hotplug events
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Authored by obiwac_gmail.com on Sat, Mar 22, 1:56 AM.

Details

Reviewers

mohammad_fbsdphab_thelightbird.com
imp
jhb
emaste

Summary

When getting a hotplug event from the hardware, transmit a hotplug acknowledgment packet. This is needed even if we don't do anything with the hotplug events, as the hardware will continuously "spam" us with hotplug events otherwise.

Test Plan

Tested on AMD Pink Sardine controller (1022:1668/9), which is host interface version 1.0.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 63049
Build 59933: arc lint + arc unit

Event Timeline

obiwac_gmail.com created this revision.Sat, Mar 22, 1:56 AM

Herald added a subscriber: imp. · View Herald TranscriptSat, Mar 22, 1:56 AM

obiwac_gmail.com requested review of this revision.Sat, Mar 22, 1:56 AM

Harbormaster completed remote builds in B63049: Diff 152528.Sat, Mar 22, 1:56 AM

obiwac_gmail.com added a parent revision: D49450: USB4 base.Sat, Mar 22, 1:56 AM

I want to factor out a notify function first.

obiwac_gmail.com added reviewers: imp, jhb, emaste.Sat, Mar 22, 3:23 AM

Revision Contents
Changeset List

Path

Size

sys/

dev/

thunderbolt/

router.c

83 lines

tbcfg_reg.h

6 lines

Diff 152528

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sys/dev/thunderbolt/router.c