vtophys() when loading mbufs for transmission and reception. While at
it all pointer arithmetic and cast qualifier issues were fixed, mostly
related to transmission and reception.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Differential Revision: https://reviews.freebsd.org/D4284
- Added support for dumping the SFP EEPROM content to dmesg.
- Fixed handling of network interface capability IOCTLs.
- Fixed race when loading and unloading the mlxen driver by applying
appropriate locking.
- Removed two unused C-files.
MFC after: 1 week
Submitted by: Mark Bloch <markb@mellanox.com>
Sponsored by: Mellanox Technologies
Differential Revision: https://reviews.freebsd.org/D4283
using GCC for 32-bit platforms. The integer size in this case is
hardcoded 64-bit while the pointer size is 32-bit.
Sponsored by: Mellanox Technologies
MFC after: 2 weeks
- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
LinuxKPI into the kernel. This was done to keep the build rules for
the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.
Reviewed by: np @ (cxgb and cxgbe related changes only)
Sponsored by: Mellanox Technologies
- Remove redundant NBLONG macro and use BIT_WORD()
and BIT_MASK() instead.
- Correctly define BIT_MASK() according to Linux and
update all users of this macro.
- Add missing GENMASK() macro.
- Remove all comments deriving from Linux.
Sponsored by: Mellanox Technologies
- Redefine DIV_ROUND_UP as a function macro taking two arguments
instead of none.
- Implement more Linux kernel functions related to various forms
of DELAY() and basic mathematical operations.
Sponsored by: Mellanox Technologies
- Define the kref structure identical to the one found in Linux.
- Update clients referring inside the kref structure.
- Implement kref_sub() for FreeBSD.
Reviewed by: np @
Sponsored by: Mellanox Technologies
- Reimplement ktime header file to distinguish more from Linux.
- Add new time header file to handle time related Linux functions.
Sponsored by: Mellanox Technologies
- Avoid using PAGE_MASK, because Linux defines it differently.
Use (PAGE_SIZE - 1) instead.
- Add support for for_each_sg_page() and sg_page_iter_dma_address().
Sponsored by: Mellanox Technologies
- Added support for multiple new Linux functions.
- Properly implement DEFINE_WAIT() and init_waitqueue_head() macros.
- Removed FreeBSD specific __wait_queue_head structure definition.
Sponsored by: Mellanox Technologies
Problem description:
How do we currently perform layer 2 resolution and header imposition:
For IPv4 we have the following chain:
ip_output() -> (ether|atm|whatever)_output() -> arpresolve()
Lookup is done in proper place (link-layer output routine) and it is possible
to provide cached lle data.
For IPv6 situation is more complex:
ip6_output() -> nd6_output() -> nd6_output_ifp() -> (whatever)_output() ->
nd6_storelladdr()
We have ip6_ouput() which calls nd6_output() instead of link output routine.
nd6_output() does the following:
* checks if lle exists, creates it if needed (similar to arpresolve())
* performes lle state transitions (similar to arpresolve())
* calls nd6_output_ifp() which pushes packets to link output routine along
with running SeND/MAC hooks regardless of lle state
(e.g. works as run-hooks placeholder).
After that, iface output routine like ether_output() calls nd6_storelladdr()
which performs lle lookup once again.
As a result, we perform lookup twice for each outgoing packet for most types
of interfaces. We also need to maintain runtime-checked table of 'nd6-free'
interfaces (see nd6_need_cache()).
Fix this behavior by eliminating first ND lookup. To be more specific:
* make all nd6_output() consumers use nd6_output_ifp() instead
* rename nd6_output[_slow]() to nd6_resolve_[slow]()
* convert nd6_resolve() and nd6_resolve_slow() to arpresolve() semantics,
e.g. copy L2 address to buffer instead of pushing packet towards lower
layers
* Make all nd6_storelladdr() users use nd6_resolve()
* eliminate nd6_storelladdr()
The resulting callchain is the following:
ip6_output() -> nd6_output_ifp() -> (whatever)_output() -> nd6_resolve()
Error handling:
Currently sending packet to non-existing la results in ip6_<output|forward>
-> nd6_output() -> nd6_output _lle() which returns 0.
In new scenario packet is propagated to <ether|whatever>_output() ->
nd6_resolve() which will return EWOULDBLOCK, and that result
will be converted to 0.
(And EWOULDBLOCK is actually used by IB/TOE code).
Sponsored by: Yandex LLC
Differential Revision: https://reviews.freebsd.org/D1469
before proceeding. Otherwise, nothing prevents it from running after the
MAD agent struct has been been freed, and this results in a use-after-free
when the task's ta_pending count is incremented in the callout handler.
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
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.
Reviewed by: hselasky, np
MFC after: 1 week
Sponsored by: Chelsio
Differential Revision: https://reviews.freebsd.org/D3386
the last OFED update (r278886).
iWARP on FreeBSD is properly integrated with the network stack and the
iWARP drivers _never_ operate out of any private TCP port-space that is
invisible to the kernel. Instead, an iWARP connection shows up as a TCP
socket (which is what it is) fully visible to the kernel and standard
tools like netstat, sockstat, etc.
order, but IN_ZERONET and IN_LOOPBACK expect it in host order.
Submitted by: Tao Liu <Tao.Liu@isilon.com>
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
In tf_dequeue(), if we reach the end of the list without finding a
non-cancelled element, "tmp" will be a pointer into the list head, so the
tmp->canceled check is bogus. Use a flag instead.
Submitted by: Tao Liu <Tao.Liu@isilon.com>
Reviewed by: hselasky
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D3244
kmalloc() call. Make function global instead of static inline to fix
compiler warnings about passing variable argument lists to inline
functions.
MFC after: 1 week
Sponsored by: Mellanox Technologies
