Commit Graph

9 Commits

Author SHA1 Message Date
Andrew Gallatin
534e6f47c1 Fix a bug in mxge's LRO which can cause dup acks to
get aggregated & hence prevent TCP from entering
fast retransmit.

Pointed out by: jeff
Reviewed by: gnn
MFC after:	7 days
2011-04-07 13:49:44 +00:00
Andrew Gallatin
eb6219e337 Implement minimal set of changes suggested by bz to make
mxge no longer depend on INET.
2009-06-23 17:42:06 +00:00
Andrew Gallatin
37d89b0c5e Add minimally invasive shims to ease MFCs of mxge back as far
as RELENG_6

Sponsored by: Myricom, Inc.
2008-02-14 00:09:59 +00:00
Andrew Gallatin
1e413cf932 Add optional support to mxge for MSI-X interrupts and multiple receive
queues (which we call slices).  The NIC will steer traffic into up to
hw.mxge.max_slices different receive rings based on a configurable
hash type (hw.mxge.rss_hash_type).

Currently the driver defaults to using a single slice, so the default
behavior is unchanged.  Also, transmit from non-zero slices is
disabled currently.
2008-01-15 20:34:49 +00:00
Andrew Gallatin
eb8e82f5fd Update the mxge(4) driver's copyright to 2007, and drop
the binary distribution clause.

Approved by: re (bmah)
2007-07-12 16:04:55 +00:00
Andrew Gallatin
56b8f0b02d Back out the previous commit which added an M_LRO mbuf flag
to defeat the mtu check in ether_input.  Mbuf flags are too scarce.
Discussed with: sam
2007-06-11 18:26:25 +00:00
Andrew Gallatin
b6af0abdc4 Allow drivers, such as cxgb and mxge, which support LRO to bypass
the MTU check in ether_input() on LRO merged frames.

Discussed with: kmacy
2007-06-11 14:59:56 +00:00
Andrew Gallatin
276edd10ac Small LRO related fixes for mxge:
- Allow LRO to be enabled / disabled at runtime
- Fix a double-free at module unload time.
- Only update timestamp in lro merge when it is present in the frame
Sponsored by: Myricom
2007-06-11 14:01:10 +00:00
Andrew Gallatin
053e637f86 Improve mxge receive performance:
- Update to the latest (1.4.18) f/w.  This f/w introduces a new
  receive mode which allows us to use FreeBSD's physically discontinuous
  MJUM9BYTES clusters.

- Switch the driver from chaining MJUMPAGESIZE clusters to using
  MJUM9BYTES clusters to avoid mbuf chaining overheads.  Due to this
  change, people running obsolete f/w images will be limited to an MTU of
  PAGE_SIZE - 16.

- Add (disabled by default) support for Large Receive Offload.

Sponsored by: Myricom, Inc.
2007-05-21 18:32:27 +00:00