Use DEFINE_PCI_DEVICE_TABLE() so we get place PCI ids table into correct section
in every case.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If mlx4_init_port_info() fails, cleanup the initialized ports only.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Add MT26438 (ConnectX EN 40GigE PCIe 2.0 5GT/s) to the list of supported
devices.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
On the error path of mlx4_init_hca(), mlx4_close_hca() is called,
followed by mlx4_free_icms() and mlx4_UNMAP_FA(). But both those
functions are also called from mlx4_close_hca(), which leads to a
double free.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The current implementation allocates a single host page for EQ context
memory, which was OK when we only allocated a few EQs. However, since
we now allocate an EQ for each CPU core, this patch removes the
hard-coded limit (which we exceed with 4 KB pages and 128 byte EQ
context entries with 32 CPUs) and uses the same ICM table code as all
other context tables, which ends up simplifying the code quite a bit
while fixing the problem.
This problem was actually hit in practice on a dual-socket Nehalem box
with 16 real hardware threads and sufficiently odd ACPI tables that it
shows on boot
SMP: Allowing 32 CPUs, 16 hotplug CPUs
so num_possible_cpus() ends up 32, and mlx4 ends up creating 33 MSI-X
interrupts and 33 EQs. This mlx4 bug means that mlx4 can't even
initialize at all on this quite mainstream system.
Cc: <stable@kernel.org>
Reported-by: Eli Cohen <eli@mellanox.co.il>
Tested-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The old code used two calls to pci_request_region() to get the two BARs
for the mlx4 device, for no particularly good reason. Clean up the code
a little by converting this to a single call to pci_request_regions().
Signed-off-by: Roland Dreier <rolandd@cisco.com>
MT26468 (PCI ID 0x6764) devices can expose multiple physical
functions. The current driver only handles the primary physical
function. For other functions, the QUERY_FW firmware command will
fail with the CMD_STAT_MULTI_FUNC_REQ error code. Don't try to drive
such devices, but print a message saying the driver is skipping those
devices rather than just "QUERY_FW command failed."
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
[ Rather than keeping unsupported devices bound to the driver, simply
print a more informative error message and exit - Roland ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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 <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When the msi_x option is enabled but pci_enable_msix() fails (not
enough vectors are available etc), the entries array was not freed on
the error path.
Signed-off-by: Nicolas Morey-Chaisemartin <nicolas.morey-chaisemartin@ext.bull.net>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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 <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Recent cpumask changes changed num_possible_cpus() from returning an int
to returning an unsigned int. This means that doing
min(num_possible_cpus(), <int expression>)
now produces a warning like
drivers/net/mlx4/main.c: In function 'mlx4_enable_msi_x':
drivers/net/mlx4/main.c:915: warning: comparison of distinct pointer types lacks a cast
Fix this by using min_t(int, ...).
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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 <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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
<https://bugs.openfabrics.org/show_bug.cgi?id=1183>, which occurred
because the IsTrapSupported bit in the capability mask was zeroed.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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 <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Get maximum ethernet MTU and default MAC address from the firmware
QUERY_DEV_CAP command.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
For ethernet support, we need to reserve QPs for the ethernet and
fibre channel driver. The QPs are reserved at the end of the QP
table. (This way we assure that they are aligned to their size)
We need to consider these reserved ranges in bitmap creation, so we
extend the mlx4 bitmap utility functions to allow reserved ranges at
both the bottom and the top of the range.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Greg Kroah-Hartman
David S. Miller
Alexey Dobriyan
Eli Cohen
Yevgeny Petrilin
Roland Dreier
Nicolas Morey-Chaisemartin
Yang Hongyang
Jack Morgenstein