Add a sysctl net.link.tap.up_on_open which defaults to zero; when it
is non-zero, tap(4) instances will be marked IFF_UP on attach.
1.71 +6 -1 src/sys/net/if_tap.c
1.19 +8 -1 src/share/man/man4/tap.4
PR: 110383
Requested by: Frank Behrens
FC and SPI default set/get into separate functions. Also, stop looking
for interrupts at the end of isp_starts- this seems to send some 23XX
cards into the weeds.
Introduce the function pmap_enter_object().
MFC revision 1.562 (in part)
Change pmap_enter_quick_locked() to fail rather than wait if it is
unable to allocate a page table page. This prevents a race between
pmap_enter_object() and the page daemon. Specifically, an inactive
page that is a successor to the page that was given to
pmap_enter_quick_locked() might become a cache page while
pmap_enter_quick_locked() waits and later pmap_enter_object() maps
the cache page violating the invariant that cache pages are never
mapped. Similarly, change
pmap_enter_quick_locked() to call pmap_try_insert_pv_entry() rather
than pmap_insert_entry(). Generally speaking,
pmap_enter_quick_locked() is used to create speculative mappings. So,
it should not try hard to allocate memory if free memory is scarce.
Add an assertion that the object containing m_start is locked in
pmap_enter_object(). Remove a similar assertion from
pmap_enter_quick_locked() because that function no longer accesses the
containing object.
Remove a stale comment.
In general, bits in the page directory entry (PDE) and the page table
entry (PTE) have the same meaning. The exception to this rule is the
eighth bit (0x080). It is the PS bit in a PDE and the PAT bit in a
PTE. This change avoids the possibility that pmap_enter() confuses a
PAT bit with a PS bit, avoiding a panic().
Eliminate a diagnostic printf() from the i386 pmap_enter() that serves
no current purpose, i.e., I've seen no bug reports in the last two
years that are helped by this printf().
details see the relevant commit logs in HEAD. The notable differences
between this patch and what is in HEAD now are that pci_remap_msix() is not
currently implemented in this patch (I need to change the API in HEAD, so
I'm not going to MFC it until its API is stable) and MSI and MSI-X are not
enabled by default. To enable MSI and MSI-X support, one must set the
'hw.pci.msi_enable' and/or 'hw.pci.msix_enable' loader tunables.
include the opt_diver.h to get the banner massage right.
This brings ip_fw2.c up to date with -current with the exception of:
1.113, 114, 125, 126, 130, 138, 140, 152-156, 158-160
All of which I do not believe to be MFC candidates (with the
possible exception of 140 which has a risk factor I don't
want to put in RELENG_6). 138 is also a possibility but requires more work
in other files.
I need to do the userland ipfw too to add some new features, but, not today..
