methods:
Read can see O_NONBLOCK and O_DIRECT.
Write can see O_NONBLOCK, O_DIRECT and O_FSYNC.
In addition O_DIRECT is shadowed as IO_DIRECT for now for backwards
compatibility.
fcntl.h.
This is in preparation for making the flags passed to device drivers be
consistently from fcntl.h for all entrypoints.
Today open, close and ioctl uses fcntl.h flags, while read and write
uses vnode.h flags.
while doing g_(read|write)_data() (e.g. BSD). This can cause a deadlock
in MIRROR class. Not sure if this is safe to drop the topology lock in BSD
class, so change the code in MIRROR class to avoid this deadlock.
GigE controller, so handle this.
- Use the outbound window 0 if the PCI mem requested is in its range, instead
of inconditionally use the outbound window 1.
This should be enough to get FreeBSD/arm to work on the IQ80321 board as well.
Reported and tested by: Jia-Shiun Li <jiashiun at gmail dot com>
This is part of an ongoing cycle of commits on all the BSDs to
merge the USB vendor and device defintions..
A merge from OpenBSD is still pending.
Submitted by: barry bouwsma (freebsd-misuser@NOSPAM.dyndns.dk)
Obtained from: NetBSD
MFC after: 1 week
multiple IRQs (which is nonsense for _CRS) when the link hasn't been
programmed. Before, this was a KASSERT. A ServerWorks system was
seen returning IRQs of 0, 2 in response to _CRS before link setup.
Thanks to sam@ for quick testing and turnaround on this.
Tested by: sam
datasheet says it is only valid for such chipsets and shouldn't be used
with others. This fixes some 82559 based cards which otherwise only
work at 10Mbit.
MFC after: 5 days
Tested by: krion
In contrast to OpenBSD we enable jumbo frame support
depending on MTU setting (like done for xmac).
Approved by: pjd (mentor)
Obtained from: OpenBSD if_sk.c r1.52 (YU_SMR_MFL_JUMBO flag)
Tested by: Heinz Knocke <knockefreebsd at o2 dot pl>
MFC after: 5 days
Keeping consumers open when device is closed is very hard. We need to
open consumers sometimes to update metadata, etc.
Many hacks was introduced in the past to made it possible. You cannot
be sure that you can open consumer for writing always, even if you think
it should be allowed. If one of the mirror components is for example da0
and you try to open it, you can get EPERM when da0s1 is opened for reading
(because BSD class opens consumers (da0) with an extra 'e' bit set).
Waiting for the events queue to be empty may do the trick, but it makes
code much uglier (as you cannot always call g_waitidle()), it doesn't
solve all edge cases and it can introduce deadlocks if there are events
in the queue that wait for gmirror.
I removed those hacks. Now all consumers are open r1w1e1 always, even if
device is closed. Maybe it is less clean from GEOM perspective, but simpify
code a lot and make it much more reliable.
The only issue was retaste event which is sent when we close consumers
opened for writing. I ignore retaste event by not detaching consumer
immediately (so retaste event is not send to my class) and sending event
right after it to detach and destroy consumer.
prevents a possible endless loop in pf_get_sport() with 'static-port'
ICMP state entries use the ICMP ID as port for the unique state key. When
checking for a usable key, construct the key in the same way. Otherwise,
a colliding key might be missed or a state insertion might be refused even
though it could be inserted. The second case triggers the endless loop,
possibly allowing a NATed LAN client to lock up the kernel.
PR: kern/74930
Reported and tested by: Hugo Silva, Srebrenko Sehic
MFC after: 3 days
- Implement arm_mask_irqs and arm_unmask_irqs
- Provide the available physical address range after pmap_bootstrap allocated
things, instead or before, or bad things happen.
