linux-toradex.git/include/linux/mlx4, branch v2.6.26-rc5

mlx4_core: Add a way to set the "collapsed" CQ flag

2008-04-29T20:46:50+00:00

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

mlx4_core: Add helper to move QP to ready-to-send

2008-04-25T21:52:32+00:00

Avoid duplicating code in ethernet and FC modules.

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

mlx4_core: Add HW queues allocation helpers

2008-04-25T21:27:08+00:00

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

mlx4_core: Move kernel doorbell management into core

2008-04-23T18:55:45+00:00

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

IB/mlx4: Add support for resizing CQs

2008-04-17T04:09:33+00:00

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

IB/mlx4: Add support for modifying CQ moderation parameters

2008-04-17T04:09:33+00:00

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

IB/mlx4: Add IPoIB LSO support

2008-04-17T04:09:27+00:00

Add TSO support to the mlx4_ib driver.

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

IB/mlx4: Add IPoIB checksum offload support

2008-04-17T04:01:10+00:00

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

mlx4_core: Fix confusion between mlx4_event and mlx4_dev_event enums

2008-04-17T04:01:08+00:00

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_event

Signed-off-by: Roland Dreier

IB/mlx4: Use multiple WQ blocks to post smaller send WQEs

2008-02-08T21:30:02+00:00

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