[Bug 297064] em(4) 82541PI silent TX/RX wedge

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D297064

Kevin Bowling <[email protected]> changed:

           What    |Removed                     |Added
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             Status|New                         |In Progress

--- Comment #5 from Kevin Bowling <[email protected]> ---
(In reply to Alexander Leidinger from comment #4)
Agreed, the automatic variant is basically porting the Linux rational.  We
could trivially combine approaches, where it is default limited to 32b DMA,=
 and
a TUNABLE allows one to override and enable larger DMA on intel or 64-bit R=
ISC
chipsets (which basically just means PowerPC now).  Or take just my approac=
h or
your approach and document the limitation.

Given that people still using these PCI cards (not PCI-X) are probably few,=
 and
further need whatever the impacting system chipset is, I don't suspect there
will be much feedback in any direction.

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