Commit graph

3 commits

Author SHA1 Message Date
John Baldwin
188458ea7c Currently the Linux character device mmap handling only supports mmap
operations that map a single page that has an associated vm_page_t.
This does not permit mapping larger regions (such as a PCI memory
BAR) and it does not permit mapping addresses beyond the top of RAM
(such as a 64-bit BAR located above the top of RAM).

Instead of using a single OBJT_DEVICE object and passing the physaddr via
the offset as a hack, create a new sglist and OBJT_SG object for each
mmap request. The requested memory attribute is applied to the object
thus affecting all pages mapped by the request.

Reviewed by:	hselasky, np
MFC after:	1 week
Sponsored by:	Chelsio
Differential Revision:	https://reviews.freebsd.org/D3386
2015-09-03 18:27:39 +00:00
Hans Petter Selasky
c7818b48b6 - Update the OFED Linux Emulation layer as a preparation for a
hardware driver update from Mellanox Technologies.
- Remove empty files from the OFED Linux Emulation layer.
- Fix compile warnings related to printf() and the "%lld" and "%llx"
format specifiers.
- Add some missing 2-clause BSD copyrights.
- Add "Mellanox Technologies, Ltd." to list of copyright holders.
- Add some new compatibility files.
- Fix order of uninit in the mlx4ib module to avoid crash at unload
using the new module_exit_order() function.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2014-08-27 13:21:53 +00:00
Jeff Roberson
aa0a1e58f0 - Merge in OFED 1.5.3 from projects/ofed/head 2011-03-21 09:58:24 +00:00