Remove all the details about armeb from arch(7), except for its
release start and end, like alpha, ia64 and pc98.
Differential Revision: https://reviews.freebsd.org/D16257
up serial output. Setting the cursor position after every character is
inefficient, and causes all lines to be over-printed in the serial
console for the boot loader. Allow the terminal to do the emulation.
This isn't completely perfect when the size of the terminal attached
to the serial port isn't the same as 80x25 to match the viedoe console
(or whatever the video console is). While imperfect still, these
changes make it much better.
This makes the serial port useful with UEFI.
Differential Revision: https://reviews.freebsd.org/D16309
Also, I misspoke in r336428. Any devices on sparc64 machines on "isa"
that can do DMA can do 32-bit address DMA and aren't limited to
24-bits of address.
Also, fix a bug in common code that could cause other tests to fail: using
ppoll(2) in combination with buffered I/O for /dev/auditpipe. Fix it by
disabling buffering.
Submitted by: aniketp
MFC after: 2 weeks
Sponsored by: Google, Inc. (GSoC 2018)
Differential Revision: https://reviews.freebsd.org/D16099
Plumb the %VERSREQ from Makefile.<arch> through to the rest of config(8).
We've recorded the config(8) version that we're calling "the end of
envmode and hintmode," and we'll write them out for earlier versions. Later
kernel version bumps will remove envmode/hintmode from the kernel as needed,
which is OK since the current kernel does not use them at all.
These compatibility shims really need to go away when the major version
rolls over...
Discussed with: imp
Remove the STDC CX_LIMITED_RANGE pragma and its verbose comment. We still
don't have any C99 compilers (that support fenv pragmas), and if we did
then there are thousands of other places in libm that would need to use
them more than here.
The other cleanups are smaller.
For setups having a large amount of PCI devices, it makes sense to limit the
number of MSIX vectors per PCI device, in order to avoid running out of IRQ
vectors.
MFC after: 1 week
Sponsored by: Mellanox Technologies
The scatter list is formed by the chunks of MCLBYTES each, and larger
than default packets are returned to the stack as the mbuf chain.
Submitted by: kib@
MFC after: 1 week
Sponsored by: Mellanox Technologies
This deduplicates the code a bit, and also implicitly adds missing
callout_stop() to in[6]_lltable_delete_entry() functions.
PR: 209682, 225927
Submitted by: hselasky (previous version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D4605
To access the data, set sysctl dev.mce.N.conf.debug_stats to 1.
This enables the sysctl node dev.mce.N.hw_ctx_debug. Its content is
the mapping of each channel' number to used receive queue and associated
completion queue, set of the transmit queues numbers and corresponding
completion queues.
Trimmed example output:
channel 30 rq 188 cq 1085
channel 30 tc 0 sq 187 cq 1084
channel 31 rq 191 cq 1087
channel 31 tc 0 sq 190 cq 1086
MFC after: 1 week
Sponsored by: Mellanox Technologies
and csqrtl().
When one component is huge and the other is tiny, scaling down the tiny
component gave spurious underflow.
When both components are denormal, not scaling them up gave inaccuracies
of 34+ ulps on not very carefully selected args. Fixing this reduces the
maximum error to 1.6 ulps on the same set of args (mosly not denormal ones).
The scaling used multiplication of a complex variable by 2, but clang messes
this on amd64 up by losing the sign of -0.0. Calculate the components
separately, as is well known to be needed for operations on more exceptional
values.
Device detach and setting error state may deadlock over the interface mutex
like this:
a) Detach code in mlx5en waits until error state is set while the interface
mutex is locked.
b) The set error handler needs to lock the interface mutex before it can
set the error state.
The solution is to use atomics to set the error state.
MFC after: 1 week
Sponsored by: Mellanox Technologies
When resetting mlx5core instances it can happen that the order of attach and
detach for mlx5ib instances is changed. Take the unit number for mlx5_%d from
the parent PCI device, similarly to what is done in mlx5en(4), so that there
is a direct relationship between mce<N> and mlx5_<N>.
MFC after: 1 week
Sponsored by: Mellanox Technologies
The DSCP feature is controlled using a set of sysctl(8) fields under
the qos sysctl directory entry for mlx5en(4).
For Routable RoCE QPs, the DSCP should be set in the QP's address path.
The DSCP's value is derived from the traffic class.
Linux commit:
ed88451e1f2d400fd6a743d0a481631cf9f97550
MFC after: 1 week
Sponsored by: Mellanox Technologies
When creating address handle from multicast GID, set MAC according to
the appropriate formula instead of searching for it in the GID table:
- For IPv4 multicast GID use ip_eth_mc_map().
- For IPv6 multicast GID use ipv6_eth_mc_map().
Linux commit:
9636a56fa864464896bf7d1272c701f2b9a57737
MFC after: 1 week
Sponsored by: Mellanox Technologies
The return status of ib_init_ah_from_mcmember() is ignored by
cma_ib_mc_handler(). Honor it and return error event if ah attribute
initialization failed.
Linux commit:
6d337179f28cc50ddd7e224f677b4cda70b275fc
MFC after: 1 week
Sponsored by: Mellanox Technologies
ah_attr contains the port number to which cm_id is bound. However, while
searching for GID table for matching GID entry, the port number is
ignored.
This could cause the wrong GID to be used when the ah_attr is converted to
an AH.
Linux commit:
563c4ba3bd2b8b0b21c65669ec2226b1cfa1138b
MFC after: 1 week
Sponsored by: Mellanox Technologies
The current implementation assumes a static mapping between
the TOS bits and the priority code point, PCP bits.
MFC after: 1 week
Sponsored by: Mellanox Technologies
When a loopback address is detected use the network interface which
has the loopback flag set to trigger loopback logic in address resolve.
MFC after: 1 week
Sponsored by: Mellanox Technologies
The ib_uverbs_create_ah() ind ib_uverbs_modify_qp() calls receive
the port number from user input as part of its attributes and assumes
it is valid. Down on the stack, that parameter is used to access kernel
data structures. If the value is invalid, the kernel accesses memory
it should not. To prevent this, verify the port number before using it.
Linux commit:
5ecce4c9b17bed4dc9cb58bfb10447307569b77b
a62ab66b13a0f9bcb17b7b761f6670941ed5cd62
5a7a88f1b488e4ee49eb3d5b82612d4d9ffdf2c3
MFC after: 1 week
Sponsored by: Mellanox Technologies
RoCEv1 does not use the IPv6 stack to resolve the link local DGID since it
uses GID address. It forms the DMAC directly from the DGID.
Linux commit:
56d0a7d9a0f045ee27a001762deac28c7d28e2e4
MFC after: 1 week
Sponsored by: Mellanox Technologies
This patch fixes the kernel crash that occurs during ib_dealloc_device()
called due to provider driver fails with an error after
ib_alloc_device() and before it can register using ib_register_device().
This crashed seen in tha lab as below which can occur with any IB device
which fails to perform its device initialization before invoking
ib_register_device().
This patch avoids touching cache and port immutable structures if device
is not yet initialized.
It also releases related memory when cache and port immutable data
structure initialization fails during register_device() state.
Linux commit:
4be3a4fa51f432ef045546d16f25c68a1ab525b9
MFC after: 1 week
Sponsored by: Mellanox Technologies
Garbage supplied by user will cause to UCMA module provide zero
memory size for memcpy(), because it wasn't checked, it will
produce unpredictable results in rdma_resolve_addr().
There are several places in the ucma ABI where userspace can pass in a
sockaddr but set the address family to AF_IB. When that happens,
rdma_addr_size() will return a size bigger than sizeof struct sockaddr_in6,
and the ucma kernel code might end up copying past the end of a buffer
not sized for a struct sockaddr_ib.
Fix this by introducing new variants
int rdma_addr_size_in6(struct sockaddr_in6 *addr);
int rdma_addr_size_kss(struct __kernel_sockaddr_storage *addr);
that are type-safe for the types used in the ucma ABI and return 0 if the
size computed is bigger than the size of the type passed in. We can use
these new variants to check what size userspace has passed in before
copying any addresses.
Linux commit:
2975d5de6428ff6d9317e9948f0968f7d42e5d74
09abfe7b5b2f442a85f4c4d59ecf582ad76088d7
84652aefb347297aa08e91e283adf7b18f77c2d5
MFC after: 1 week
Sponsored by: Mellanox Technologies
