FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=stable%2F9 2015-09-11T00:20:15Z 2015-09-11T00:20:15Z John Baldwin jhb@FreeBSD.org 2015-09-11T00:20:15Z urn:sha1:caddcb2e8f428069951d0babaadb4421c76df34d 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. Sponsored by: Chelsio 2014-10-30T15:41:25Z Hans Petter Selasky hselasky@FreeBSD.org 2014-10-30T15:41:25Z urn:sha1:f5b416b52dfc022f915ae19d84241c8aa58c4f93 r255969, r256179, r230135, r254121, r255932, r255972, r255973, r256281, r256470, r257867, r259608, r269862, r271127, r272407, r257864, r256682, r258276, r254734, r247675, r254735 and r272683: Hardware driver update from Mellanox Technologies, including: - improved performance - better stability - new features - bugfixes Supported HCAs: - ConnectX-2 - ConnectX-3 - ConnectX-3 Pro NOTE: - TSO feature needs r271946, which is not yet merged. Sponsored by: Mellanox Technologies 2011-03-21T09:58:24Z Jeff Roberson jeff@FreeBSD.org 2011-03-21T09:58:24Z urn:sha1:aa0a1e58f0189b0fde359a8bda032887e72057fa