FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F9.2.0 2013-08-15T12:19:16Z 2013-08-15T12:19:16Z Scott Long scottl@FreeBSD.org 2013-08-15T12:19:16Z urn:sha1:63e0f0f0c230505454bb02922661c407e1b437aa Update PCI drivers to no longer look at the MEMIO-enabled bit in the PCI command register. The lazy BAR allocation code in FreeBSD sometimes disables this bit when it detects a range conflict, and will re-enable it on demand when a driver allocates the BAR. Thus, the bit is no longer a reliable indication of capability, and should not be checked. This results in the elimination of a lot of code from drivers, and also gives the opportunity to simplify a lot of drivers to use a helper API to set the busmaster enable bit. This changes fixes some recent reports of disk controllers and their associated drives/enclosures disappearing during boot. Submitted by: jhb Reviewed by: jfv, marius, adrian, achim Approved by: re 2013-07-05T09:36:09Z Achim Leubner achim@FreeBSD.org 2013-07-05T09:36:09Z urn:sha1:454f4505a5678ee046c6f1c4c0c99c771ab410ec Approved by: emaste (co-mentor)