freebsd-nq/sys/dev/mpt
Scott Long c68534f1d5 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, achadd, achim
MFC after:	1 day
2013-08-12 23:30:01 +00:00
..
mpilib
mpt_cam.c Flag mpt(4) as supporting unmapped I/O; all necessary conversion actually 2013-06-24 21:27:15 +00:00
mpt_cam.h
mpt_debug.c
mpt_pci.c Update PCI drivers to no longer look at the MEMIO-enabled bit in the PCI 2013-08-12 23:30:01 +00:00
mpt_raid.c Explicitly use a pair of parentheses to ensure correct evaluation 2013-05-31 17:27:44 +00:00
mpt_raid.h
mpt_reg.h
mpt_user.c Explicitly use a pair of parentheses to ensure correct evaluation 2013-05-31 17:27:44 +00:00
mpt.c
mpt.h