The caller to the driver marks GFP_NOIO allocations with help
of memalloc_noio-* calls now. This makes redundant to pass down
to the driver gfp flags, which can be GFP_KERNEL only.

The patch removes the gfp flags argument and updates all driver paths.
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The msleep(1) may do not sleep 1 ms as expected
and will sleep longer. The simple conversion from
msleep to usleep_range between 1ms and 2ms can solve an
issue.

The full and comprehensive explanation can be found at [1] and [2].

[1] https://lkml.org/lkml/2007/8/3/250
[2] Documentation/timers/timers-howto.txt
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Reviewed-by: NErez Shitrit <erezsh@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Remove date and bump version for mlx4_ib driver.
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The cited patch added a type field to structures ib_ah and rdma_ah_attr.

Function mlx4_ib_query_ah() builds an rdma_ah_attr structure from the
data in an mlx4_ib_ah structure (which contains both an ib_ah structure
and an address vector).

For mlx4_ib_query_ah() to work properly, the type field in the contained
ib_ah structure must be set correctly.

In the outgoing MAD tunneling flow, procedure mlx4_ib_multiplex_mad()
paravirtualizes a MAD received from a slave and sends the processed
mad out over the wire. During this processing, it populates an
mlx4_ib_ah structure and calls mlx4_ib_query_ah().

The cited commit overlooked setting the type field in the contained
ib_ah structure before invoking mlx4_ib_query_ah(). As a result, the
type field remained uninitialized, and the rdma_ah_attr structure was
incorrectly built. This resulted in improperly built MADs being sent out
over the wire.

This patch properly initializes the type field in the contained ib_ah
structure before calling mlx4_ib_query_ah(). The rdma_ah_attr structure
is then generated correctly.

Fixes: 44c58487 ("IB/core: Define 'ib' and 'roce' rdma_ah_attr types")
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The last two actual parameters when calling id_map_find_by_sl_id()
from id_map_get() are swapped. However, the same formal parameters to
id_map_get() have them swapped as well, inverting the effect of the
first error.

This commit improves readability, but makes no functional change to
the code.
Signed-off-by: NHåkon Bugge <haakon.bugge@oracle.com>
Reviewed-by: NWengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: NKnut Omang <knut.omang@oracle.com>
Acked-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Change and simplify the code to match the variable name. This commit
improves readability but makes no functional change to the code.
Signed-off-by: NHåkon Bugge <haakon.bugge@oracle.com>
Suggested-by: NWengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: NWengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: NKnut Omang <knut.omang@oracle.com>
Acked-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

rdma_ah_attr can now be either ib or roce allowing
core components to use one type or the other and also
to define attributes unique to a specific type. struct
ib_ah is also initialized with the type when its first
created. This ensures that calls such as modify_ah
dont modify the type of the address handle attribute.
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Reviewed-by: NNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Modify core and driver components to use accessor functions
introduced to access individual fields of rdma_ah_attr
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Reviewed-by: NNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

local function  to_ib_ah_attr is renamed so it in
sync with the rename of the ib_ah_attr structure
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Rename ib_destroy_ah to rdma_destroy_ah so its in sync with the
rename of the ib address handle attribute
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Reviewed-by: NNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Rename ib_query_ah to rdma_query_ah so its in sync with the
rename of the ib address handle attribute
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Rename ib_create_ah to rdma_create_ah so its in sync with the
rename of the ib address handle attribute
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Reviewed-by: NNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

This patch simply renames struct ib_ah_attr to
rdma_ah_attr as these fields specify attributes that are
not necessarily specific to IB.
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Reviewed-by: NDon Hiatt <don.hiatt@intel.com>
Reviewed-by: NNiranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Reviewed-by: NSean Hefty <sean.hefty@intel.com>
Signed-off-by: NDasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Size of pages are held by struct ib_umem in page_size field.

It is better to store it as an exponent, because page size by nature
is always power-of-two and used as a factor, divisor or ilog2's argument.

The conversion of page_size to be page_shift allows to have portable
code and avoid following error while compiling on ARM:

  ERROR: "__aeabi_uldivmod" [drivers/infiniband/core/ib_core.ko] undefined!

CC: Selvin Xavier <selvin.xavier@broadcom.com>
CC: Steve Wise <swise@chelsio.com>
CC: Lijun Ou <oulijun@huawei.com>
CC: Shiraz Saleem <shiraz.saleem@intel.com>
CC: Adit Ranadive <aditr@vmware.com>
CC: Dennis Dalessandro <dennis.dalessandro@intel.com>
CC: Ram Amrani <Ram.Amrani@Cavium.com>
Signed-off-by: NArtemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Acked-by: NRam Amrani <Ram.Amrani@cavium.com>
Acked-by: NShiraz Saleem <shiraz.saleem@intel.com>
Acked-by: NSelvin Xavier <selvin.xavier@broadcom.com>
Acked-by: NSelvin Xavier <selvin.xavier@broadcom.com>
Acked-by: NAdit Ranadive <aditr@vmware.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Anonymous VMA (->vm_ops == NULL) cannot be shared, otherwise
it would lead to SIGBUS.

Remove the shared flags from the vma after we change it to be
anonymous.

This is easily reproduced by doing modprobe -r while running a
user-space application such as raw_ethernet_bw.

Fixes: ae184dde ('IB/mlx4_ib: Disassociate support')
Signed-off-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

When the driver disassociate user context, it changes the vma to
anonymous by setting the vm_ops to null and zap the vma ptes.

In order to avoid race in the kernel, we need to take write lock
before we change the vma entries.

Fixes: ae184dde ('IB/mlx4_ib: Disassociate support')
Signed-off-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

A warning message during SRIOV multicast cleanup should have actually been
a debug level message. The condition generating the warning does no harm
and can fill the message log.

In some cases, during testing, some tests were so intense as to swamp the
message log with these warning messages, causing a stall in the console
message log output task. This stall caused an NMI to be sent to all CPUs
(so that they all dumped their stacks into the message log).
Aside from the message flood causing an NMI, the tests all passed.

Once the message flood which caused the NMI is removed (by reducing the
warning message to debug level), the NMI no longer occurs.

Sample message log (console log) output illustrating the flood and
resultant NMI (snippets with comments and modified with ... instead
of hex digits, to satisfy checkpatch.pl):

 <mlx4_ib> _mlx4_ib_mcg_port_cleanup: ... WARNING: group refcount 1!!!...
 *** About 4000 almost identical lines in less than one second ***
 <mlx4_ib> _mlx4_ib_mcg_port_cleanup: ... WARNING: group refcount 1!!!...
 INFO: rcu_sched detected stalls on CPUs/tasks: { 17} (...)
 *** { 17} above indicates that CPU 17 was the one that stalled ***
 sending NMI to all CPUs:
 ...
 NMI backtrace for cpu 17
 CPU: 17 PID: 45909 Comm: kworker/17:2
 Hardware name: HP ProLiant DL360p Gen8, BIOS P71 09/08/2013
 Workqueue: events fb_flashcursor
 task: ffff880478...... ti: ffff88064e...... task.ti: ffff88064e......
 RIP: 0010:[ffffffff81......]  [ffffffff81......] io_serial_in+0x15/0x20
 RSP: 0018:ffff88064e257cb0  EFLAGS: 00000002
 RAX: 0000000000...... RBX: ffffffff81...... RCX: 0000000000......
 RDX: 0000000000...... RSI: 0000000000...... RDI: ffffffff81......
 RBP: ffff88064e...... R08: ffffffff81...... R09: 0000000000......
 R10: 0000000000...... R11: ffff88064e...... R12: 0000000000......
 R13: 0000000000...... R14: ffffffff81...... R15: 0000000000......
 FS:  0000000000......(0000) GS:ffff8804af......(0000) knlGS:000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080......
 CR2: 00007f2a2f...... CR3: 0000000001...... CR4: 0000000000......
 DR0: 0000000000...... DR1: 0000000000...... DR2: 0000000000......
 DR3: 0000000000...... DR6: 00000000ff...... DR7: 0000000000......
 Stack:
 ffff88064e...... ffffffff81...... ffffffff81...... 0000000000......
 ffffffff81...... ffff88064e...... ffffffff81...... ffffffff81......
 ffffffff81...... ffff88064e...... ffffffff81...... 0000000000......
 Call Trace:
[<ffffffff813d099b>] wait_for_xmitr+0x3b/0xa0
[<ffffffff813d0b5c>] serial8250_console_putchar+0x1c/0x30
[<ffffffff813d0b40>] ? serial8250_console_write+0x140/0x140
[<ffffffff813cb5fa>] uart_console_write+0x3a/0x80
[<ffffffff813d0aae>] serial8250_console_write+0xae/0x140
[<ffffffff8107c4d1>] call_console_drivers.constprop.15+0x91/0xf0
[<ffffffff8107d6cf>] console_unlock+0x3bf/0x400
[<ffffffff813503cd>] fb_flashcursor+0x5d/0x140
[<ffffffff81355c30>] ? bit_clear+0x120/0x120
[<ffffffff8109d5fb>] process_one_work+0x17b/0x470
[<ffffffff8109e3cb>] worker_thread+0x11b/0x400
[<ffffffff8109e2b0>] ? rescuer_thread+0x400/0x400
[<ffffffff810a5aef>] kthread+0xcf/0xe0
[<ffffffff810a5a20>] ? kthread_create_on_node+0x140/0x140
[<ffffffff81645858>] ret_from_fork+0x58/0x90
[<ffffffff810a5a20>] ? kthread_create_on_node+0x140/0x140
Code: 48 89 e5 d3 e6 48 63 f6 48 03 77 10 8b 06 5d c3 66 0f 1f 44 00 00 66 66 66 6

As indicated in the stack trace above, the console output task got swamped.

Fixes: b9c5d6a6 ("IB/mlx4: Add multicast group (MCG) paravirtualization for SR-IOV")
Cc: <stable@vger.kernel.org> # v3.6+
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

In mlx4_ib_add, procedure mlx4_ib_alloc_eqs is called to allocate EQs.

However, in the mlx4_ib_add error flow, procedure mlx4_ib_free_eqs is not
called to free the allocated EQs.

Fixes: e605b743 ("IB/mlx4: Increase the number of vectors (EQs) available for ULPs")
Cc: <stable@vger.kernel.org> # v3.4+
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

On some environments, such as certain SR-IOV VF configurations, RoCE
isn't supported for mlx4 Ethernet ports. Currently the driver will
not open IB device on that port.

This is problematic since we do want user-space RAW Ethernet QPs functionality
to remain in place. For that end, enhance the relevant driver flows such that we
do create a device instance in that case.
Signed-off-by: NMajd Dibbiny <majd@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>

But first update usage sites with the new header dependency.
Acked-by: NLinus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: NIngo Molnar <mingo@kernel.org>

We are going to split <linux/sched/mm.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/mm.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

The APIs that are going to be moved first are:

   mm_alloc()
   __mmdrop()
   mmdrop()
   mmdrop_async_fn()
   mmdrop_async()
   mmget_not_zero()
   mmput()
   mmput_async()
   get_task_mm()
   mm_access()
   mm_release()

Include the new header in the files that are going to need it.
Acked-by: NLinus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: NIngo Molnar <mingo@kernel.org>

Previously, we used the HW GID index in order to search the source GID
in the software GID cached table. In some cases, for example when
the MAC Address of the network interface is changed, the GID cached table
saves the old-IPv6-link-local GID at the end of the table.

When returning the old MAC address, the software GID cached table tries
to add the new IPv6-link-local GID, and when it identifies that the GID
already exists, the software GID cached does not add it. Thus a mismatch
occurs between the HW and the SW GID tables.

It resulted with sending traffic with the wrong source GID.

This commit fixes the issue by taking both from the HW table.

The problem can be reproduced with the following scenario:
Client:
    # ifconfig ens6 2.2.2.5
    # ifconfig ens6 inet6 add 2001:0db8:0:f101::5/64
    # ifconfig ens6 hw ether f4:52:14:61:a0:71
    # ifconfig ens6 inet6 del 2001:0db8:0:f101::5/64
    # ifconfig ens6 inet6 add 2001:0db8:0:f101::5/64
    # ucmatose -f ipv6 -b 2001:0db8:0:f101::5 -s 2001:0db8:0:f101::6 -p 20156
Server:
    # ucmatose -f ipv6 -b 2001:0db8:0:f101::6 -p 20156

Fixes: 4c3eb3ca ('IB/mlx4: Add VLAN support for IBoE')
Signed-off-by: NTalat Batheesh <talatb@mellanox.com>
Reviewed-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Remove unused netw_view parameter from eth_link_query_port() function.
Reported-by: NShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Change the drivers to call ib_query_port in their get port
immutable handler instead of their own query port handler.

Doing this required to set the core cap flags of this device
before the ib_query_port call is made, since the IB core might
need these caps to serve the port query.

Drivers are ensured by the IB core that the port attributes passed
to the port query verb implementation are zero, and hence we
removed the zeroing from the drivers.

This patch doesn't add any new functionality.
Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: NMatan Barak <matanb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Reviewed-by: NSteve Wise <swise@opengridcomputing.com>
Acked-by: NAdit Ranadive <aditr@vmware.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Mark support for the new raw packet protocol on Eth ports.
Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: NMatan Barak <matanb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Prepare for removal of ib_device.dma_device.
Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com>
Cc: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Update the if_ether.h with the  ethertype for Infiniband over
Ethernet packets. Also, removing the occurances of 0x8915
from infiniband vendor drivers.
Signed-off-by: NSelvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Demoting simple flow steering rule priority (for DPDK) was achieved by
wrapping FW commands MLX4_QP_FLOW_STEERING_ATTACH/DETACH for the PF
as well, and forcing the priority to MLX4_DOMAIN_NIC in the wrapper
function for the PF and all VFs.

In function mlx4_ib_create_flow(), this change caused the main rule
creation for the PF to be wrapped, while it left the associated
tunnel steering rule creation unwrapped for the PF.

This mismatch caused rule deletion failures in mlx4_ib_destroy_flow()
for the PF when the detach wrapper function did not find the associated
tunnel-steering rule (since creation of that rule for the PF did not
go through the wrapper function).

Fix this by setting MLX4_QP_FLOW_STEERING_ATTACH/DETACH to be "native"
(so that the PF invocation does not go through the wrapper), and perform
the required priority demotion for the PF in the mlx4_ib_create_flow()
code path.

Fixes: 48564135 ("net/mlx4_core: Demote simple multicast and broadcast flow steering rules")
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If uhw->inlen is non-zero, the value of variable err is 0 if the copy
succeeds. Then, if kzalloc() or kmalloc() returns a NULL pointer, it
will return 0 to the callers. As a result, the callers cannot detect the
errors. This patch fixes the bug, assign "-ENOMEM" to err before the
NULL pointer checks, and remove the initialization of err at the
beginning.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=189031Signed-off-by: NPan Bian <bianpan2016@163.com>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The special QP creation error path relies on offset_of(struct mlx4_ib_sqp,
qp) == 0. Remove this assumption because that makes the QP creation
code easier to understand.
Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com>
Cc: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: NLaurence Oberman <loberman@redhat.com>
Reviewed-by: NYishai Hadas <yishaih@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

For non-special QPs, the port value becomes non-zero only at the
RESET-to-INIT transition. If the QP has not undergone that transition,
its port number value is still zero.

If such a QP is destroyed before being moved out of the RESET state,
subtracting one from the qp port number results in a negative value.
Using that negative value as an index into the qp1_proxy array
results in an out-of-bounds array reference.

Fix this by testing that the QP type is one that uses qp1_proxy before
using the port number. For special QPs of all types, the port number is
specified at QP creation time.

Fixes: 9433c188 ("IB/mlx4: Invoke UPDATE_QP for proxy QP1 on MAC changes")
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Add struct ib_udata to the signature of create_ah callback that is
implemented by IB device drivers. This allows HW drivers to return extra
data to the userspace library.
This patch prepares the ground for mlx5 driver to resolve destination
mac address for a given GID and return it to userspace.
This patch was previously submitted by Knut Omang as a part of the
patch set to support Oracle's Infiniband HCA (SIF).
Signed-off-by: NKnut Omang <knut.omang@oracle.com>
Signed-off-by: NMoni Shoua <monis@mellanox.com>
Reviewed-by: NYishai Hadas <yishaih@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Before reading GRH attributes, need to make sure AH contains GRH,
and in addition, initialize GID type.

Fixes: dbf727de ('IB/core: Use GID table in AH creation and dmac resolution')
Signed-off-by: NEran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

According to the firmware spec, FLOW_STEERING_IB_UC_QP_RANGE command is
supported only if dmfs_ipoib bit is set.

If it isn't set we want to ensure allocating NET_IF QPs fail. We do so
by filling out the allocation bitmap. By thus, the NET_IF QPs allocating
function won't find any free QP and will fail.

Fixes: c1c98501 ('IB/mlx4: Add support for steerable IB UD QPs')
Signed-off-by: NEran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The prints after [k|v][m|z|c]alloc() functions are not needed,
because in case of failure, allocator will print their internal
error prints anyway.
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Report the correct speed in the port attributes when using a 56Gbps
ethernet link.  Without this change the field is incorrectly set to 10.

Fixes: a9c766bb ('IB/mlx4: Fix info returned when querying IBoE ports')
Fixes: 2e96691c ('IB: Use central enum for speed instead of hard-coded values')
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NYishai Hadas <yishaih@mellanox.com>
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Use INT_MAX since this is the max value the attribute can hold, though
hardware capability is unlimited.

Fixes: 225c7b1f ('IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters')
Signed-off-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: NMark Bloch <markb@mellanox.com>
Reviewed-by: NYuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

If OpenSM runs over a ConnectX-3, and there are ConnectX-4 or Connect-IB
VFs active on the network, the OpenSM will receive QP1 packets containing
a GRH where the destination GID is the "Well-Known GID" -- which is not a
GID in the HCA Port's GID Table.

This GID must be tested-for separately -- and packets which contain
this destination GID should be routed to slave 0 (the PF).

Fixes: 37bfc7c1 ('IB/mlx4: SR-IOV multiplex and demultiplex MADs')
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

When MAD arrives to the hypervisor, we need to identify which slave it
should be sent by destination GID. When L3 protocol is IPv4 the
GRH is replaced by an IPv4 header. This patch detects when IPv4 header
needs to be parsed instead of GRH.

Fixes: b6ffaeff ('mlx4: In RoCE allow guests to have multiple GIDS')
Signed-off-by: NMoni Shoua <monis@mellanox.com>
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Set traffic class within sl_tclass_flowlabel when create iboe AH.
Without this the TOS value will be empty when running VLAN tagged
traffic, because the TOS value is taken from the traffic class in the
address handle attributes.

Fixes: 9106c410 ('IB/mlx4: Fix SL to 802.1Q priority-bits mapping for IBoE')
Signed-off-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NDaniel Jurgens <danielj@mellanox.com>
Reviewed-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>