disable genet receiver when disabling dma in firmware instead of linux genet reset
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
- Issue type
- Bug
- Clarity
- Needs clarification
- Activity status
- Stale
- Tech stack
- linux
- Domain
- embedded-iot, networking
Research direction
Start by reading the referenced Raspberry Pi Linux commit b65b82fbd2ce90c3e96cb10e1e21a784a60b6a9a and the linked netdev discussion. Identify the firmware component handling BCM GENET DMA disable and determine whether receiver reset belongs there; done means a firmware build implements the required reset and can be tested without the Linux reset patch.
Written by the indexing model from the issue text.
Description
I was trying to upstream https://github.com/raspberrypi/linux/commit/b65b82fbd2ce90c3e96cb10e1e21a784a60b6a9a (net: bcmgenet: Reset RBUF on first open) ( context: https://lore.kernel.org/netdev/47ba4ef5a42fe7412d7e3432a0995464@rmail.be/T/ ):
And there was discussion of that it would be better to fix this in firmware, rather than try to make the workaround in kernel.
The suggestion is that likely DMA disable is not enough, and receiver reset is necessary too.
Would it be possible to try to get this fix in the firmware? I can easily test a firmware build of this (without the reset patch).
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- Stars
- 5.6k
- Forks
- 1.7k
- PR merge metrics
- No merged PRs in 30d
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