Commit Graph

260 Commits

Author SHA1 Message Date
Navdeep Parhar
a5234e8ccb Do not free an uninitialized pointer on soaccept failure in the iWARP
connection manager.

Sponsored by:	Chelsio Communications
2016-08-26 08:25:28 +00:00
Hans Petter Selasky
7dc445f8d3 Add support for setting blocking and non-blocking mode on /dev/rdma_cm
by returning success on FIONBIO and FIOASYNC IOCTLs. The actual flags
handling is done by the kern_ioctl() function.

Reported by:	Alex Bowden <alex.bowden@outlook.com>
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-08-18 08:49:02 +00:00
Mark Johnston
f1c1f188f7 mthca: Add a wrapper for the firmware's DIAG_RPRT command.
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2016-08-05 21:34:09 +00:00
Mark Johnston
49fe7b5029 ipoib: Bound the number of egress mbufs buffered during pathrec lookups.
In pathological situations where the master subnet manager becomes
unresponsive for an extended period, we may otherwise end up queuing all
of the system's mbufs while waiting for a response to a path record lookup.

This addresses the same issue as commit 1e85b806f9 in Linux.

Reviewed by:	cem, ngie
MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
2016-08-01 22:22:11 +00:00
Mark Johnston
4e071758a7 MFV be9130cc9: "IB/cma: Check for GID on listening devices first"
This is an optimization that improves IB connection setup times.

Discussed with:	hselasky
Obtained from:	Linux
MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
2016-08-01 20:29:09 +00:00
Mark Johnston
82f1d3ea2f MFV 29f27e847: "IB/cma: Use cached gids"
This addresses a regression from an earlier upstream change which caused
cma_acquire_dev() to bypass the port GID cache and instead query the HCA
for each entry in its GID table. These queries can become extremely slow on
multiport devices, which has a negative impact on connection setup times.

Discussed with:	hselasky
Obtained from:	Linux
MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
2016-08-01 20:27:11 +00:00
Mark Johnston
adaf3c4906 sdp: Destroy the RDMA ID after destroying the connection's queue pair.
This is the ordering documented by rdma_destroy_qp(). Also add a useful
KASSERT to sdp_pcbfree().

Sponsored by:	EMC / Isilon Storage Division
2016-07-29 21:03:02 +00:00
Mark Johnston
d3461164e0 sdp: Use malloc(9) instead of the Linux compat layer.
SDP transmit and receive rings are always created in a sleepable context,
so we can use M_WAITOK and remove error checks.

Sponsored by:	EMC / Isilon Storage Division
2016-07-29 21:01:04 +00:00
Mark Johnston
f66ec15275 sdp: Use the correct socket buffer in sdp_post_recvs_needed().
Sponsored by:	EMC / Isilon Storage Division
2016-07-29 20:54:43 +00:00
Mark Johnston
7e968dab6d sdp: Always free received control packets after they're handled.
Sponsored by:	EMC / Isilon Storage Division
2016-07-29 20:51:52 +00:00
Mark Johnston
3b3e6d882f Fix the KASSERT format string arguments after r303507. 2016-07-29 20:48:42 +00:00
Mark Johnston
a3c0b052b7 sdp: Use the PCB as the rx completion handler argument.
The generic socket may be detached from the PCB before the completion
queue is drained and destroyed, so this change closes a race condition
in connection teardown.

Sponsored by:	EMC / Isilon Storage Division
2016-07-29 20:39:32 +00:00
Mark Johnston
fa46ade837 sdp: Destroy the PCB lock before freeing to the zone.
Sponsored by:	EMC / Isilon Storage Division
2016-07-29 20:36:01 +00:00
Mark Johnston
2cefa87b0b sdp: Use an mbufq for received control packets.
This is simpler than the hand-rolled queue, and fixes a use-after-free.

Sponsored by:	EMC / Isilon Storage Division
2016-07-29 20:35:04 +00:00
Mark Johnston
30a71b3c30 sdp: Remove Linux build files.
They aren't useful here, and Linux seems to have largely abandoned SDP
anyway.

Sponsored by:	EMC / Isilon Storage Division
2016-07-29 20:33:43 +00:00
Navdeep Parhar
9e2d05841e Fix bug in iwcm that caused a panic in iw_cm_wq when krping is run
repeatedly in a tight loop.

Approved by:	re (gjb@)
Obtained from:	hselasky@ (part of larger changes in D5791)
2016-06-14 20:58:05 +00:00
Sepherosa Ziehau
36ad8372d4 net: Use M_HASHTYPE_OPAQUE_HASH if the mbuf flowid has hash properties
Reviewed by:	hps, erj, tuexen
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D6688
2016-06-07 04:51:50 +00:00
George V. Neville-Neil
fd9e88e0f9 Fix up the Infiniband code to handle the new arpresolve. 2016-06-02 20:53:43 +00:00
Hans Petter Selasky
fa201e28fc Prepare for activation of LinuxKPI module parameters as read-only
tunable SYSCTL's. Linux module parameters are associated with the
module they belong to. FreeBSD does not share this concept of a parent
module. Instead add macros which define the prefix to use for the
module parameters in the LinuxKPI consumers.

While at it convert all "bool" LinuxKPI module parameters to "byte"
type, because we don't have a "bool" type of SYSCTL in FreeBSD.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-05-25 12:03:21 +00:00
Eitan Adler
cef367e6a1 Don't repeat the the word 'the'
(one manual change to fix grammar)

Confirmed With: db
Approved by: secteam (not really, but this is a comment typo fix)
2016-05-17 12:52:31 +00:00
Pedro F. Giffuni
a5a274d0d4 sys/ofed: minor spelling fix.
No functional change.

Reviewed by:	hselasky
2016-05-06 15:37:06 +00:00
Pedro F. Giffuni
bf5cba36db ofed/drivers: minor spelling fixes.
No functional change.

Reviewed by:	hselasky
2016-05-06 15:16:13 +00:00
Bjoern A. Zeeb
77eab110a9 Fix NOIP kernels to compile. 2016-04-24 15:56:05 +00:00
Hans Petter Selasky
0bab509b94 More fixes for using IPv6 addresses with RDMA:
- Added check that the SCOPE ID is only restored for IPv6 linklocal
  addresses.

- Changes made by r237263 in the "cma_bind_addr()" function did not
  check if the socket address was of type IPv6 and used the IPv4
  socket address for IPv6 addresses. This caused the function to
  fail. Fixed this.

- In the "rdma_gid2ip()" function and some other places the "sin6_len"
  and "sin6_scope_id" fields were not set for IPv6 socket
  addresses. Fixed this.

- The scope ID is not stored as part of the GID entries and must be
  passed as an argument to "rdma_gid2ip()".

- Added new method to "struct ib_device" which returns a pointer to
  the network interface which belongs to the given infiniband
  device. This is needed to be able to get the scope ID for IPv6
  addresses via the associated ethernet interface.

- Added convenience function, "rdma_get_ipv6_scope_id()", to get the
  scope ID for IPv6 addresses.

- Implemented new "get_netdev" method for mlx4ib. Other IB controller
  drivers which want to support IPv6 addresses needs to implement this
  aswell.

- Bumped the FreeBSD version due to changing "struct ib_device".

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-22 18:16:12 +00:00
Hans Petter Selasky
c3a74bf6d7 Add KASSERT() and set error code in dead code case to help static code
analysis tools.

Suggested by:	ngie@
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-22 06:39:07 +00:00
Hans Petter Selasky
10a7a4bf44 Add missing set of the current VNET when inputting IP packets in IPoIB.
This fixes a kernel panic when using IPoIB with VIMAGE and infiniband.

PR:		208957
Sponsored by:	Mellanox Technologies
Tested by:	Justin Clift <justin@postgresql.org>
MFC after:	1 week
2016-04-22 06:33:06 +00:00
Hans Petter Selasky
150c88d471 Fix for using IPv6 addresses with RDMA:
IPv6 addresses has a scope ID which sometimes is stored in the
"sin6_scope_id" field of "struct sockaddr_in6" and sometimes as part
of the IPv6 address itself depending on the context. If the scope ID
is not in the expected location, the IPv6 address lookups in the
so-called GID table will fail. Some code factoring has been made to
achieve a clean exit of the "addr_resolve" function via a common
"done" label.

Sponsored by:	Mellanox Technologies
Submitted by:	Shani Michaeli <shanim@mellanox.com>
MFC after:	1 week
2016-04-21 16:33:42 +00:00
Hans Petter Selasky
a296502fe0 Fix for resolving mac address when the destination address is a gateway.
Remove some dead code while at it.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-21 16:04:58 +00:00
Hans Petter Selasky
53219aa88a Properly setup arguments for if_resolvemulti() callback.
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-21 11:32:22 +00:00
Hans Petter Selasky
03815ec1db Fix inverted priv check calls. Priv check returns zero on success and
an error code on failure. Refer to man 9 priv_check .

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-20 07:44:50 +00:00
Pedro F. Giffuni
d4a2eaef39 ofed: for pointers replace 0 with NULL.
These are mostly cosmetical, no functional change.

Found with devel/coccinelle.
Reviewed by:	hselasky
2016-04-15 12:16:15 +00:00
Hans Petter Selasky
ebcd5b5b31 Remove some unused fields.
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-14 14:11:32 +00:00
Hans Petter Selasky
b03aadaffc Ensure the received IP header gets 32-bits aligned.
The FreeBSD's TCP/IP stack assumes that the IP-header is 32-bits aligned
when decoding it. Else unaligned 32-bit memory access can happen, which
not all processor architectures support.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-14 14:10:40 +00:00
Hans Petter Selasky
617e1ff301 Add missing port_up checks.
When downing a mlxen network adapter we need to check the port_up variable
to ensure we don't continue to transmit data or restart timers which can
reside in freed memory.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-04-14 14:01:28 +00:00
Pedro F. Giffuni
74b8d63dcc Cleanup unnecessary semicolons from the kernel.
Found with devel/coccinelle.
2016-04-10 23:07:00 +00:00
Sepherosa Ziehau
6dd38b8716 tcp/lro: Use tcp_lro_flush_all in device drivers to avoid code duplication
And factor out tcp_lro_rx_done, which deduplicates the same logic with
netinet/tcp_lro.c

Reviewed by:	gallatin (1st version), hps, zbb, np, Dexuan Cui <decui microsoft com>
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5725
2016-04-01 06:28:33 +00:00
Navdeep Parhar
0ff41bb737 Remove unnecessary dequeue_mutex (added in r294610) from the iWARP
connection manager.  Examining so_comp without synchronization with
iw_so_event_handler is a harmless race.

Submitted by:	Krishnamraju Eraparaju @ Chelsio
Reviewed by:	Steve Wise @ Open Grid Computing
Sponsored by:	Chelsio Communications
2016-03-30 01:08:08 +00:00
Hans Petter Selasky
9795b2c6ce Add missing curly brackets in for loop.
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-03-17 12:30:21 +00:00
Hans Petter Selasky
1f20c68e07 Use hardware computed Toeplitz hash for incoming flowids
Use the Toeplitz hash value as source for the flowid. This makes the
hash value more suitable for so-called hash bucket algorithms which
are used in the FreeBSD's TCP/IP stack when RSS is enabled.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-03-15 15:53:37 +00:00
Hans Petter Selasky
9319562b86 Fix witness panic in the ipoib_ioctl() function when unloading the
ipoib module.

The bpfdetach() function is trying to turn off promiscious mode on the
network interface it is attached to while holding a mutex. The fix
consists of ignoring any further calls to the ipoib_ioctl() function
when the network interface is going to be detached. The ipoib_ioctl()
function might sleep.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2016-03-15 15:47:26 +00:00
John Baldwin
47cedcbd72 Use SI_SUB_LAST instead of SI_SUB_SMP as the "catch-all" subsystem.
Reviewed by:	kib
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D5515
2016-03-11 23:18:06 +00:00
Hans Petter Selasky
96608f1ff4 Whitespace fixes.
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-03-04 09:07:30 +00:00
Hans Petter Selasky
c7c96d1093 LinuxKPI list updates:
- Add some new hlist macros.
- Update existing hlist macros removing the need for a temporary
  iteration variable.
- Properly define the RCU hlist macros to be SMP safe with regard
  to RCU.
- Safe list macro arguments by adding a pair of parentheses.
- Prefix the _list_add() and _list_splice() functions with "linux"
  to reflect they are LinuxKPI internal functions.

Obtained from:	Linux
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-01-26 15:12:31 +00:00
Navdeep Parhar
097f289f25 Fix for iWARP servers that listen on INADDR_ANY.
The iWARP Connection Manager (CM) on FreeBSD creates a TCP socket to
represent an iWARP endpoint when the connection is over TCP. For
servers the current approach is to invoke create_listen callback for
each iWARP RNIC registered with the CM. This doesn't work too well for
INADDR_ANY because a listen on any TCP socket already notifies all
hardware TOEs/RNICs of the new listener. This patch fixes the server
side of things for FreeBSD. We've tried to keep all these modifications
in the iWARP/TCP specific parts of the OFED infrastructure as much as
possible.

Submitted by:	Krishnamraju Eraparaju @ Chelsio (with design inputs from Steve Wise)
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D4801
2016-01-22 23:33:34 +00:00
Alexander V. Chernikov
36402a681f Finish r275196: do not dereference rtentry in if_output() routines.
The only piece of information that is required is rt_flags subset.

In particular, if_loop() requires RTF_REJECT and RTF_BLACKHOLE flags
  to check if this particular mbuf needs to be dropped (and what
  error should be returned).
Note that if_loop() will always return EHOSTUNREACH for "reject" routes
  regardless of RTF_HOST flag existence. This is due to upcoming routing
  changes where RTF_HOST value won't be available as lookup result.

All other functions require RTF_GATEWAY flag to check if they need
  to return EHOSTUNREACH instead of EHOSTDOWN error.

There are 11 places where non-zero 'struct route' is passed to if_output().
For most of the callers (forwarding, bpf, arp) does not care about exact
  error value. In fact, the only place where this result is propagated
  is ip_output(). (ip6_output() passes NULL route to nd6_output_ifp()).

Given that, add 3 new 'struct route' flags (RT_REJECT, RT_BLACKHOLE and
  RT_IS_GW) and inline function (rt_update_ro_flags()) to copy necessary
  rte flags to ro_flags. Call this function in ip_output() after looking up/
  verifying rte.

Reviewed by:	ae
2016-01-09 16:34:37 +00:00
Gleb Smirnoff
829fae9063 Make it possible for sbappend() to preserve M_NOTREADY on mbufs, just like
sbappendstream() does. Although, M_NOTREADY may appear only on SOCK_STREAM
sockets, due to sendfile(2) supporting only the latter, there is a corner
case of AF_UNIX/SOCK_STREAM socket, that still uses records for the sake
of control data, albeit being stream socket.

Provide private version of m_clrprotoflags(), which understands PRUS_NOTREADY,
similar to m_demote().
2016-01-08 19:03:20 +00:00
Hans Petter Selasky
b9320e2a6a Remove unused file. 2016-01-07 09:40:19 +00:00
Alexander V. Chernikov
4fb3a8208c Implement interface link header precomputation API.
Add if_requestencap() interface method which is capable of calculating
  various link headers for given interface. Right now there is support
  for INET/INET6/ARP llheader calculation (IFENCAP_LL type request).
  Other types are planned to support more complex calculation
  (L2 multipath lagg nexthops, tunnel encap nexthops, etc..).

Reshape 'struct route' to be able to pass additional data (with is length)
  to prepend to mbuf.

These two changes permits routing code to pass pre-calculated nexthop data
  (like L2 header for route w/gateway) down to the stack eliminating the
  need for other lookups. It also brings us closer to more complex scenarios
  like transparently handling MPLS nexthops and tunnel interfaces.
  Last, but not least, it removes layering violation introduced by flowtable
  code (ro_lle) and simplifies handling of existing if_output consumers.

ARP/ND changes:
Make arp/ndp stack pre-calculate link header upon installing/updating lle
  record. Interface link address change are handled by re-calculating
  headers for all lles based on if_lladdr event. After these changes,
  arpresolve()/nd6_resolve() returns full pre-calculated header for
  supported interfaces thus simplifying if_output().
Move these lookups to separate ether_resolve_addr() function which ether
  returs error or fully-prepared link header. Add <arp|nd6_>resolve_addr()
  compat versions to return link addresses instead of pre-calculated data.

BPF changes:
Raw bpf writes occupied _two_ cases: AF_UNSPEC and pseudo_AF_HDRCMPLT.
Despite the naming, both of there have ther header "complete". The only
  difference is that interface source mac has to be filled by OS for
  AF_UNSPEC (controlled via BIOCGHDRCMPLT). This logic has to stay inside
  BPF and not pollute if_output() routines. Convert BPF to pass prepend data
  via new 'struct route' mechanism. Note that it does not change
  non-optimized if_output(): ro_prepend handling is purely optional.
Side note: hackish pseudo_AF_HDRCMPLT is supported for ethernet and FDDI.
  It is not needed for ethernet anymore. The only remaining FDDI user is
  dev/pdq mostly untouched since 2007. FDDI support was eliminated from
  OpenBSD in 2013 (sys/net/if_fddisubr.c rev 1.65).

Flowtable changes:
  Flowtable violates layering by saving (and not correctly managing)
  rtes/lles. Instead of passing lle pointer, pass pointer to pre-calculated
  header data from that lle.

Differential Revision:	https://reviews.freebsd.org/D4102
2015-12-31 05:03:27 +00:00
Hans Petter Selasky
c5e5a55f8f Fix i386 build WITH_OFED=YES. Remove some redundant KASSERTs.
Suggested by:	kib, ian
Sponsored by:	Mellanox Technologies
MFC after:	1 week
2015-12-04 18:20:55 +00:00
Enji Cooper
4722f6ef28 Fix scope of bridge_header and bridge_pcix_cap in mthca_reset(..)
They're only used in the __linux__ case

Differential Revision: https://reviews.freebsd.org/D4332
MFC after: 1 week
Reported by: cppcheck
Reviewed by: hselasky
Sponsored by: EMC / Isilon Storage Division
2015-12-04 09:01:58 +00:00