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Add -D option to pciconf(8) to mmap and dump content of the device BAR.

Description

Add -D option to pciconf(8) to mmap and dump content of the device BAR.

Discussed with: imp, jhb
Sponsored by: The FreeBSD Foundation, Mellanox Technologies
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D15583

Details

Provenance
kibAuthored on
Differential Revision
D15583: Mmap device BAR into userspace.
Parents
rS337053: Add ioctl to conveniently mmap a PCI device BAR into userspace.
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