linux-toradex.git/include/linux/mlx4, branch tegra-10.11.4

IB/mlx4: Add support for masked atomic operations

2010-04-21T23:37:49+00:00

Add support for masked atomic operations (masked compare and swap,
masked fetch and add).

Signed-off-by: Vladimir Sokolovsky 
Signed-off-by: Roland Dreier

IB/mlx4: Remove limitation on LSO header size

2009-11-12T19:19:44+00:00

Current code has a limitation: an LSO header is not allowed to cross a
64 byte boundary.  This patch removes this limitation by setting the
WQE RR for large headers thus allowing LSO headers of any size.  The
extra buffer reserved for MLX4_IB_QP_LSO QPs has been doubled, from 64
to 128 bytes, assuming this is reasonable upper limit for header
length.  Also, this patch will cause IB_DEVICE_UD_TSO to be set only
for HCA FW versions that set MLX4_DEV_CAP_FLAG_BLH; e.g. FW version
2.6.000 and higher.

Signed-off-by: Eli Cohen 
Signed-off-by: Roland Dreier

IB/mlx4: Add strong ordering to local inval and fast reg work requests

2009-06-05T17:36:24+00:00

The ConnectX Programmer's Reference Manual states that the "SO" bit
must be set when posting Fast Register and Local Invalidate send work
requests.  When this bit is set, the work request will be executed
only after all previous work requests on the send queue have been
executed.  (If the bit is not set, Fast Register and Local Invalidate
WQEs may begin execution too early, which violates the defined
semantics for these operations)

This fixes the issue with NFS/RDMA reported in


Signed-off-by: Jack Morgenstein 
Cc: 
Signed-off-by: Roland Dreier

mlx4_core: Add module parameter for number of MTTs per segment

2009-05-27T21:38:34+00:00

The current MTT allocator uses kmalloc() to allocate a buffer for its
buddy allocator, and thus is limited in the amount of MTT segments
that it can control.  As a result, the size of memory that can be
registered is limited too.  This patch uses a module parameter to
control the number of MTT entries that each segment represents,
allowing more memory to be registered with the same number of
segments.

Signed-off-by: Eli Cohen 
Signed-off-by: Roland Dreier

mlx4_core: Add link type autosensing

2009-03-19T02:45:11+00:00

When a port's link is down (except to driver restart) and the port is
configured for auto sensing, we try to sense port link type (Ethernet
or InfiniBand) in order to determine how to initialize the port.  If
the port type needs to be changed, all mlx4 for the device interfaces
are unregistered and then registered again with the new port
types.  Sensing is done with intervals of 3 seconds.

Signed-off-by: Yevgeny Petrilin 
Signed-off-by: Roland Dreier

mlx4_core: Add support for multiple completion event vectors

2008-12-22T15:15:03+00:00

When using MSI-X mode, create a completion event queue for each CPU.
Report the number of completion EQs in a new struct mlx4_caps member,
num_comp_vectors, and extend the mlx4_cq_alloc() interface with a
vector parameter so that consumers can specify which completion EQ
should be used to report events for the CQ being created.

Signed-off-by: Yevgeny Petrilin 
Signed-off-by: Roland Dreier

mlx4_core: Save/restore default port IB capability mask

2008-11-29T05:29:46+00:00

Commit 7ff93f8b ("mlx4_core: Multiple port type support") introduced
support for different port types.  As part of that support, SET_PORT
is invoked to set the port type during driver startup.  However, as a
side-effect, for IB ports the invocation of this command also sets the
port's capability mask to zero (losing the default value set by FW).

To fix this, get the default ib port capabilities (via a MAD_IFC Port
Info query) during driver startup, and save them for use in the
mlx4_SET_PORT command when setting the port-type to Infiniband.

This patch fixes problems with subnet manager (SM) failover such as
, which occurred
because the IsTrapSupported bit in the capability mask was zeroed.

Signed-off-by: Jack Morgenstein 
Signed-off-by: Roland Dreier

mlx4_core: Multiple port type support

2008-10-22T22:38:42+00:00

Multi-protocol adapters support different port types.  Each consumer
of mlx4_core queries for supported port types; in particular mlx4_ib
can no longer assume that all physical ports belong to it.  Port type
is configured through a sysfs interface.  When the type of a port is
changed, all mlx4 interfaces are unregistered, and then registered
again with the new port types.

Signed-off-by: Yevgeny Petrilin 
Signed-off-by: Roland Dreier

mlx4_core: Ethernet MAC/VLAN management

2008-10-22T18:44:46+00:00

Add support for managing MAC and VLAN filters for each port.

Signed-off-by: Yevgeny Petrilin 
Signed-off-by: Oren Duer 
Signed-off-by: Roland Dreier

mlx4_core: Get ethernet MTU and default address from firmware

2008-10-22T17:56:48+00:00

Get maximum ethernet MTU and default MAC address from the firmware
QUERY_DEV_CAP command.

Signed-off-by: Yevgeny Petrilin 
Signed-off-by: Roland Dreier