13 Nov, 2009
1 commit
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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
06 Jun, 2009
1 commit
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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
28 May, 2009
1 commit
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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
19 Mar, 2009
1 commit
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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
22 Dec, 2008
1 commit
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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
29 Nov, 2008
1 commit
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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
23 Oct, 2008
4 commits
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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 -
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 -
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 -
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
Signed-off-by: Roland Dreier
11 Oct, 2008
1 commit
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To allow allocating an aligned range of consecutive QP numbers, add an
interface to reserve an aligned range of QP numbers and have the QP
allocation function always take a QP number.This will be used for RSS support in the mlx4_en Ethernet driver and
also potentially by IPoIB RSS support.Signed-off-by: Yevgeny Petrilin
Signed-off-by: Roland Dreier
16 Sep, 2008
1 commit
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Byte swap the addresses in the page list for fast register work requests
to big endian to match what the HCA expectx. Also, the addresses must
have the "present" bit set so that the HCA knows it can access them.
Otherwise the HCA will fault the first time it accesses the memory
region.Signed-off-by: Vladimir Sokolovsky
Signed-off-by: Roland Dreier
07 Aug, 2008
1 commit
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Add ethernet-related fields to struct mlx4_cqe so that the mlx4_en
ethernet NIC driver can share the same definition.Signed-off-by: Yevgeny Petrilin
Signed-off-by: Roland Dreier
26 Jul, 2008
1 commit
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Add fields for VLAN tag and insert VLAN tag flag to the control
section struct. These fields will be used for sending ethernet
packets.Signed-off-by: Yevgeny Petrilin
Signed-off-by: Roland Dreier
23 Jul, 2008
2 commits
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Add support for the following operations to mlx4 when device firmware
supports them:- Send with invalidate and local invalidate send queue work requests;
- Allocate/free fast register MRs;
- Allocate/free fast register MR page lists;
- Fast register MR send queue work requests;
- Local DMA L_Key.Signed-off-by: Roland Dreier
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Make the struct name consistent with other WQE segment struct types
defined in .Signed-off-by: Roland Dreier
15 Jul, 2008
1 commit
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Add support for handling the IB_QP_CREATE_MULTICAST_BLOCK_LOOPBACK
flag by using the per-multicast group loopback blocking feature of
mlx4 hardware.Signed-off-by: Ron Livne
Signed-off-by: Roland Dreier
30 Apr, 2008
1 commit
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Extend the mlx4_cq_resize() API with a way to set the "collapsed" flag
for the CQ being created.Signed-off-by: Yevgeny Petrilin
Signed-off-by: Roland Dreier
26 Apr, 2008
2 commits
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Avoid duplicating code in ethernet and FC modules.
Signed-off-by: Yevgeny Petrilin
Signed-off-by: Roland Dreier -
Wrap doorbell, buffer and MTT allocation in helper functions for
ethernet and FC modules to use.Signed-off-by: Yevgeny Petrilin
Signed-off-by: Roland Dreier
24 Apr, 2008
1 commit
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In addition to mlx4_ib, there will be ethernet and FC consumers of
mlx4_core, so move the code for managing kernel doorbells into the
core module to avoid having to duplicate this multiple times.Signed-off-by: Yevgeny Petrilin
Signed-off-by: Roland Dreier
17 Apr, 2008
5 commits
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Signed-off-by: Vladimir Sokolovsky
Signed-off-by: Roland Dreier -
Signed-off-by: Eli Cohen
Signed-off-by: Roland Dreier -
Add TSO support to the mlx4_ib driver.
Signed-off-by: Eli Cohen
Signed-off-by: Roland Dreier -
ConnectX devices support checksum generation and verification of TCP
and UDP packets for UD IPoIB messages. This patch checks if the HCA
supports this and sets the IB_DEVICE_UD_IP_CSUM capability flag if it
does. It implements support for handling the IB_SEND_IP_CSUM send
flag and setting the csum_ok field in receive work completions.Signed-off-by: Eli Cohen
Signed-off-by: Ali Ayub
Signed-off-by: Roland Dreier -
The struct mlx4_interface.event() method was supposed to get an enum
mlx4_dev_event, but the driver code was actually passing in the
hardware enum mlx4_event values. Fix up the callers of
mlx4_dispatch_event() so that they pass in the right type of value,
and fix up the event method in mlx4_ib so that it can handle the enum
mlx4_dev_event values.This eliminates the need for the subtype parameter to the event
method, so remove it.This also fixes the sparse warning
drivers/net/mlx4/intf.c:127:48: warning: mixing different enum types
drivers/net/mlx4/intf.c:127:48: int enum mlx4_event versus
drivers/net/mlx4/intf.c:127:48: int enum mlx4_dev_eventSigned-off-by: Roland Dreier
09 Feb, 2008
1 commit
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ConnectX HCA supports shrinking WQEs, so that a single work request
can be made of multiple units of wqe_shift. This way, WRs can differ
in size, and do not have to be a power of 2 in size, saving memory and
speeding up send WR posting. Unfortunately, if we do this then the
wqe_index field in CQEs can't be used to look up the WR ID anymore, so
our implementation does this only if selective signaling is off.Further, on 32-bit platforms, we can't use vmap() to make the QP
buffer virtually contigious. Thus we have to use constant-sized WRs to
make sure a WR is always fully within a single page-sized chunk.Finally, we use WRs with the NOP opcode to avoid wrapping around the
queue buffer in the middle of posting a WR, and we set the
NoErrorCompletion bit to avoid getting completions with error for NOP
WRs. However, NEC is only supported starting with firmware 2.2.232,
so we use constant-sized WRs for older firmware. And, since MLX QPs
only support SEND, we use constant-sized WRs in this case.When stamping during NOP posting, do stamping following setting of the
NOP WQE valid bit.Signed-off-by: Michael S. Tsirkin
Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier
07 Feb, 2008
3 commits
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Now that struct mlx4_buf.u is a struct instead of a union because of
the vmap() changes, there's no point in having a struct at all. So
move .direct and .page_list directly into struct mlx4_buf and get rid
of a bunch of unnecessary ".u"s.Signed-off-by: Roland Dreier
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Since kernel virtual memory is not a problem on 64-bit systems, there
is no reason to use our own 2-layer page mapping scheme for large
kernel queue buffers on such systems. Instead, map the page list to a
single virtually contiguous buffer with vmap(), so that can we access
buffer memory via direct indexing.Signed-off-by: Michael S. Tsirkin
Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier -
We use struct mlx4_buf for kernel QP, CQ and SRQ buffers, and the code
to look up an entry is duplicated in get_cqe_from_buf() and the QP and
SRQ versions of get_wqe(). Factor this out into mlx4_buf_offset().This will also make it easier to switch over to using vmap() for buffers.
Signed-off-by: Roland Dreier
15 Oct, 2007
1 commit
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It's a leftover from development that's never used in the real driver.
Signed-off-by: Roland Dreier
10 Oct, 2007
2 commits
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Implement FMRs for mlx4. This is an adaptation of code from mthca.
Signed-off-by: Jack Morgenstein
Signed-off-by: Michael S. Tsirkin
Signed-off-by: Roland Dreier -
display the following device information under /sys/class/infiniband/mlx4_X:
board_id, fw_ver, hw_rev, hca_type.This patch makes this information available to userspace utilities
such as ibstat and ibv_devinfo.Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier
13 Jul, 2007
2 commits
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Signed-off-by: Dotan Barak
Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier -
Signed-off-by: Jack Morgenstein
Signed-off-by: Roland Dreier
10 Jul, 2007
1 commit
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Get the maximum message size from the device capabilities returned
from the QUERY_DEV_CAP firmware command, rather than hard-coding 2 GB.Signed-off-by: Dotan Barak
Signed-off-by: Michael S. Tsirkin
Signed-off-by: Roland Dreier
19 Jun, 2007
1 commit
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Inline data segments in send WQEs are not allowed to cross a 64 byte
boundary. We use inline data segments to hold the UD headers for MLX
QPs (QP0 and QP1). A send with GRH on QP1 will have a UD header that
is too big to fit in a single inline data segment without crossing a
64 byte boundary, so split the header into two inline data segments.Signed-off-by: Roland Dreier
18 Jun, 2007
1 commit
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Upcoming firmware introduces command interface revision 3, which
changes the way port capabilities are queried and set. Update the
driver to handle both the new and old command interfaces by adding a
new MLX4_FLAG_OLD_PORT_CMDS that it is set after querying the firmware
interface revision and then using the correct interface based on the
setting of the flag.Signed-off-by: Roland Dreier
09 May, 2007
1 commit
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Add an InfiniBand driver for Mellanox ConnectX adapters. Because
these adapters can also be used as ethernet NICs and Fibre Channel
HBAs, the driver is split into two modules:mlx4_core: Handles low-level things like device initialization and
processing firmware commands. Also controls resource allocation
so that the InfiniBand, ethernet and FC functions can share a
device without stepping on each other.mlx4_ib: Handles InfiniBand-specific things; plugs into the
InfiniBand midlayer.Signed-off-by: Roland Dreier