Commit Graph

21 Commits

Author SHA1 Message Date
Andrew Gallatin
7b9f20ea8d Adapt mxge shims to detect phys contig jumbo frames
in RELENG_7

MFC after: 3 days
2008-08-21 16:35:34 +00:00
Andrew Gallatin
91ed89132c Now that mxge supports MSI-X interrupts, reverse the logic and flag
legacy interrupts rather than MSI as a special case.  Prior to this
commit, the interrupt handler was doing the slow handshaking with
the device to ensure the legacy interrupt was lowered in both
the legacy and MSI-X case.  This handshaking was not
required for MSI-X.
2008-02-14 16:24:14 +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
b0f7b92207 Take advantage of the new physically contiguous 9K jumbos in 8. 2008-01-22 22:04:31 +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
f15444982b Add support for a new device id (9). Mxge NICs with the new
device id support MSI-X.

Approved by: re (bmah)
2007-09-13 21:29:02 +00:00
Andrew Gallatin
c587e59f20 - Fix a bug which could cause a panic when enabling LRO
on an down mxge interface
- Fix a bug where mxge reported the link state as
   active when it wasn't (after ifconfig down).
- Prevent spurious watchdog resets when link partner is not consuming
- Add support for CX4 and popular XFP media detection
- Update the firmware and associated header files to 1.4.25

Approved by: re (kensmith)
2007-08-22 13:22:12 +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
c792928f01 Add support for "hardware" vlan tag insertion & removal emulation
in the mxge driver so as to be able to do checksum offload
on vlans.  This is good enough to achieve 10GbE line rate on vlans.
2007-05-23 16:25:40 +00:00
Andrew Gallatin
adae7080fb mxge cleanups:
- Remove code to use the special wc_fifo.  It has been disabled by default
  in our other drivers as it actually slows down transmit by a small amount

- Dynamically determine the amount of space required for the rx_done
  ring rather than hardcoding it.

- Compute the number of tx descriptors we are willing to transmit per
  frame as the minimum of 128 or 1/4 the tx ring size.

- Fix a typo in the tx dma tag setup which could lead to unnecessary
  defragging of TSO packets (and potentially even dropping TSO packets
  due to EFBIG being returned).

- Add a counter to keep track of how many times we've needed to
  defragment a frame.  It should always be zero.

- Export new extended f/w counters via sysctl

Sponsored by: Myricom, Inc.
2007-05-22 15:57:49 +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
Andrew Gallatin
b824b7d86a Work around a firmware bug where broadcast frames would be incorrectly
treated as multicast frames and filtered, but when only when "adopting"
running firmware.  By "adopting", I mean using pre-existing firmware
loaded from eeprom at PCI reset, rather than firmware loaded by the
driver.
2007-02-21 17:34:05 +00:00
Andrew Gallatin
dce01b9b27 - Add 99% of a callout based watchdog. The remaining 1% is waiting
for pci_cfg_restore() to be exported.  It was tested using a
  hackily accessed pci_cfg_restore().

- Add ifmedia_removeall() to mxge_detach() in order to stop leaking
  an ifaddr

- Fix a small acounting bug introduced by the locking code shuffle
  which could cause spurious watchdog resets now that we have a
  watchdog.

Sponsored by: Myricom
2007-01-31 19:53:36 +00:00
Andrew Gallatin
a98d6cd71c Abandon using sleepable locks in favor of mutexes for mxge's if_ioctl
locking in preparation for adding a watchdog handler (callouts must
not use sleepable locks).  This required shuffling memory and
interrupt allocation to the attach routine rather than if_ioctl so as
to avoid potential sleeps while bringing up the interface.
2007-01-31 15:29:31 +00:00
Andrew Gallatin
a82c2581b5 Minor updates:
- initialize ifq_drv_maxlen correctly
- mark the interface as jumbo capable
- keep stats on the number of times the hw transmit queue filled and
  was restarted.
2007-01-30 08:39:44 +00:00
Andrew Gallatin
d91b1b4976 Initialization bugfixes and enhancements:
- Fix bug preventing adoption of running firmware
- Set PCIe max read request size to 4KB
- Read PCIe link width from config space
- Assume aligned completions from the southbridge ports
  of intel E5000 chips
- Use aligned firmware when link width is x4 or less
- Add hw.mxge.force_firmware tunable to allow user to force
  selection of aligned (or unaligned) firmware
2006-11-22 16:33:40 +00:00
Andrew Gallatin
0fa7f68197 - Updated to the latest myri10ge firmware
- Added support for multicast filtering, now that the firmware
  supports it.  Note that this is not yet tested, as multicast
  seems to panic -current (even w/o mxge loaded)
- Added workaround to cope with different irq data struct size on
  pre-multicast firmware which can found running on nics.
- Added Intel E5000 PCIe chipsets to list providing aligned completions.
- Replaced various magic constants with #defines, now that they are
  defined in the firmware headers.
2006-09-15 19:24:45 +00:00
Andrew Gallatin
aed8e389c1 - Added TSO support. This entailed increasing the number of send descriptors
in the transmit busdma tag, so I moved the segment list off the
stack.

- Fixed transmit routine to ensure it doesn't read past the end
of an mbuf when parsing headers.

- Corrected handling of odd length segments.  Setting MXGEFW_FLAGS_ALIGN_ODD
is required only when offloading the checksum of that frame.

Sponsored by: Myricom Inc.
2006-09-15 15:41:28 +00:00
Andrew Gallatin
5e7d85418b Update the mxge driver.
- Update the firmware to the latest released firmware
  (1.4.3), which corresponds to the firmware in the
  latest shipping drivers from Myricom.  This firmware
  fixes several bugs in the firmware's PCI-e implementation,
  and it also changes the driver/firmware interface:

  o TSO was added, and changed the format of the transmit
    descriptors.
  o The firmware no longer counts transmits descriptors,
    but frames.  So the driver needs to keep a count
    of the number of frames sent.
  o The weird interrupt strategy changed to a normal receive
    return ring.  This ring is much bigger, and we may be
    able to support DEVICE_POLLING.
  o Myricom's header files changed the name of firmware
    related #define's and enums (s/_MCP_/FW_).

- Stopped spamming the console with lots of printfs unless
  mxge_verbose (or bootverbose) is set.

- Made additional information available via sysctl, including
  the results of a PCI-e DMA benchmark run at device reset.

- Decreased the excessively long timeouts when sending commands
  from 2 seconds to 20ms.

Sponsored by: Myricom Inc.
2006-06-14 16:23:17 +00:00
Andrew Gallatin
6d87a65da4 - Complete the myri10ge -> mxge name change by doing a mechanical
s/myri10ge/mxge/g replacement in the myri10ge files.  A few contuation
  lines were joined because of the regained columns.
- Hook the mxge driver back to the build.
2006-06-13 13:53:52 +00:00
Andrew Gallatin
b2fc195e1b 10GbE mode driver and binary firmware for Myricom's PCI-express NICs.
More info regarding these nics can be found at http://www.myri.com.

Please note that the files
sys/dev/myri10ge/{mcp_gen_header.h,myri10ge_mcp.h} are internally
shared between all our drivers (solaris, macosx, windows, linux, etc).
I'd like to keep these files unchanged, so I can just import newer
versions of them when the firmware API/ABI changes.  This means I'm
stuck with some of the crazy-long #define names, and possibly
non-style(9) characteristics of these files.

Many thanks to mlaier for doing firmware(9) just as I
needed it, and to scottl for his helpful review.

Reviewed by: scottl, glebius
Sponsored by: Myricom Inc.
2006-02-19 22:39:19 +00:00