Commit Graph

102 Commits

Author SHA1 Message Date
gallatin
47e9f283f0 Update mxge(4) firmware to the latest version available from
Myricom (1.4.53a).

MFC after:	7 days
Sponored by: Myricom, Inc.
2011-07-12 15:07:17 +00:00
gallatin
d5b4db4916 Fix media reporting for dual port CX4 myri10ge NICs
MFC after: 7 days
Sponsored by: Myricom, Inc.
2011-07-12 14:43:49 +00:00
gallatin
5754f4c1c2 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
gallatin
2634e2269f Implement mxge_init()
This fixes a long standing bug in mxge(4) where "ifconfig mxge0 $IP"
did not bring the interface into a RUNNING state, like it does on
most (all?) other FreeBSD NIC drivers.

Thanks to gnn for mentioning the bug, and yongari for pointing out that
ether_ioctl() invokes ifp->if_init() in SIOCSIFADDR.

MFC after: 7 days
2011-04-06 15:45:32 +00:00
jhb
00c3c01f4f Do a sweep of the tree replacing calls to pci_find_extcap() with calls to
pci_find_cap() instead.
2011-03-23 13:10:15 +00:00
jhb
964ca98f14 Use a regular taskqueue rather than a fast taskqueue for mxge(4).
Reviewed by:	gallatin
2011-01-07 16:07:29 +00:00
gallatin
40b50edac3 Fix a TSO checksum bug on mxge(4):
The Myri10GE NIC will assume all TSO frames contain partial checksum,
and will emit TSO segments with bad TCP checksums if a TSO frame
contains a full checksum.  The mxge driver takes care to make sure
that TSO is disabled when checksum offload is disabled for this
reason.  However, modules that modify packet contents (like pf) may
end up completing a checksum on a TSO frame, leading to the NIC emitting
TSO segments with bad checksums.

To workaround this, restore the partial checksum in the mxge driver
when we're fed a TSO frame with a full checksum.

Reported by: Bob Healey

MFC after:	3 days
2010-11-22 16:43:05 +00:00
gallatin
17a33e9b1b Add interrupt descriptions for mxge's msi-x vectors 2010-05-21 15:57:24 +00:00
gallatin
0771bb84c5 Correctly identify some twinax cables, which report
a media type of 1.
2010-05-19 20:00:15 +00:00
gallatin
a4fab0b4ba Update mxge firmware to latest available from Myricom. 2010-05-19 19:44:00 +00:00
fabient
7b5a899589 Add a fastpath to allocate from packet zone when using m_getjcl.
This will add support for packet zone for at least igb and ixgbe
and will avoid to check for that in bce and mxge.

MFC after: 1 week
2010-05-07 22:09:17 +00:00
gallatin
56d97f5aaa Add missing IFCAP_LINKSTATE to mxge
Submitted by: yongari
2010-04-15 14:26:52 +00:00
gallatin
a73efa73a4 Cleanup if_media handling in mxge(4)
- Re-probe xfp / sfp+ socket on link events, in case user
    has changed transceiver
- correctly report current media to avoid confusing lagg (reported by Panasas)
- Report link speed  (submitted by yongari)

Reviewed by: yongari (earlier version)

MFC after: 7 days
2010-04-15 13:50:55 +00:00
gallatin
0824be0322 Fix 2 bugs in mxge_attach()
- Don't leak slice resources when mxge_alloc_rings() fails

- Start taskq threads only after we know attach will succeed.  At
  boot time, taskqueue_terminate() will loop infinately, waiting
  for the threads to exit, and hang the system.

Submitted by: Panasas
MFC After: 3 days
2010-03-17 20:13:09 +00:00
gallatin
4c0d544d24 Update mxge to support IFCAP_VLAN_HWTSO.
Note: If/when FreeBSD supports TSO over IPv6, the minimal mxge fw
rev to enable IFCAP_VLAN_HWTSO will need to be increased to 1.4.37
2010-02-22 16:57:03 +00:00
mlaier
b056acb864 Fix drbr and altq interaction:
- introduce drbr_needs_enqueue that returns whether the interface/br needs
   an enqueue operation: returns true if altq is enabled or there are
   already packets in the ring (as we need to maintain packet order)
 - update all drbr consumers
 - fix drbr_flush
 - avoid using the driver queue (IFQ_DRV_*) in the altq case as the
   multiqueue consumer does not provide enough protection, serialize altq
   interaction with the main queue lock
 - make drbr_dequeue_cond work with altq

Discussed with:		kmacy, yongari, jfv
MFC after:		4 weeks
2010-02-13 16:04:58 +00:00
gallatin
1e3bc23fb5 Use better default RSS hash (src + dst, rather than just src port)
MFC after:3 days
2010-01-11 22:28:40 +00:00
gallatin
513bf23735 Update mxge(4) firmware to 1.4.48b (latest available) from Myricom.
Pertinant highlights from Myricom CHANGES file include:

- Make sure invalid external smbus activity cannot affect performance
- Fix to avoid a bug where the link could sometimes stay reported as
   up on after unplugging the cable.
- For 8B NIC, make smbus connection passive at init to avoid
   possible address conflicts
- Increase number of slices to 17 for multi-slice fw
- Fix a bug where packets dropped because of link_overflow could
     be occasionally reported as bad_crc32
- Add selectable failover strategy for dual-port chip: symmetric or primary/backup
- On failover, send RARP broadcast to make the change immediately
  known to the network
- Change endianess for PCI Device Serial Number
- For dual-port NICs, time to failover is now a few microsecs
    instead of a few millisecs.

MFC after:	3 days
2010-01-11 22:25:09 +00:00
gallatin
25de9fcb7d Fix reporting of 10G Twinax media
Reported by: mjacob
MFC after: 3 days
2010-01-11 22:08:59 +00:00
mbr
7450f52a57 Remove extraneous semicolons, no functional changes.
Submitted by:	Marc Balmer <marc@msys.ch>
MFC after:	1 week
2010-01-07 21:01:37 +00:00
gallatin
697c526415 Don't take the driver mutex in mxge_tick(), as it
is run with the mutex held.

Submitted by: rwatson
MFC after:	3 days
2009-12-22 15:41:58 +00:00
gallatin
7b2639cc55 Make mxge do a better job recovering from NIC h/w faults
by checking PCI config space when the NIC is not
transmitting.  Previously, a h/w fault would not have been
detected if the NIC was down, or handling an RX only
workload.
2009-10-20 18:58:28 +00:00
gallatin
8f9031d9fe Move mxge(4)'s NIC watchdog reset handler from
a callout to a taskqueue
2009-10-19 20:51:27 +00:00
gallatin
e020b62ba4 Two more mxge watchdog fixes:
1) Restore the PCI Express control register after a watchdog
   reset.  This is required because the device will come out
   of watchdog reset with the pectl reg at its default state,
   and important BIOS configuration (like max payload size)
   could be lost.

2) Call mxge_start_locked() for every tx queue before dropping
   the lock in the watchdog handler.   This is required, as
   the queue's buf ring may have filled during the reset.
2009-09-30 14:42:06 +00:00
gallatin
aeed8258a9 Improve mxge watchdog routine's ability to reliably reset a failed NIC:
- Mark the link as down, so if watchdog reset fails, link watching
    failover software can notice it
- Don't send MXGEFW_CMD_ETHERNET_DOWN if the NIC has been reset, it is
    not needed, and will fail on a freshly reset NIC.
- Ensure the transmit routines aren't attempting to PIO write to doorbells
    while the NIC is being reset.
- Download the correct f/w, rather than using the EEPROM f/w after reset.
- Export a count of the number of watchdog resets via sysctl
- Zero all f/w stats at reset.  This will lead to less confusing
    diagnostic output when investigating NIC failures.

MFC after:	3 days
2009-09-21 20:16:10 +00:00
gallatin
f5d9e7af24 Add support for throttling transmit bandwidth. This is most commonly
used to reduce packet loss on high delay (WAN) paths with a
slow link.
2009-09-21 14:41:07 +00:00
gallatin
315ba5eabf mxge's tunable hw.mxge.rss_hash_type cannot be set from the
loader, because it uses a reserved suffix (_type).  Fix
this by removing the "_" and renaming the tunable to
hw.mxge.rss_hashtype.  The old (rss_hash_type) tunable is
still fetched, in case people load the driver via scripts.
When both are present in the kernel environment,
the new value (hw.mxge.rss_hashtype) overrides the old
value.

Approved by:	re (kib)
2009-07-22 11:57:34 +00:00
rwatson
be5740a255 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/
IF_ADDR_UNLOCK() across network device drivers when accessing the
per-interface multicast address list, if_multiaddrs.  This will
allow us to change the locking strategy without affecting our driver
programming interface or binary interface.

For two wireless drivers, remove unnecessary locking, since they
don't actually access the multicast address list.

Approved by:	re (kib)
MFC after:	6 weeks
2009-06-26 11:45:06 +00:00
gallatin
ce189363a0 Add a dying flag to prevent races at detach.
I tried re-ordering ether_ifdetach(), but this created a new race
where sometimes, when under heavy receive load (>1Mpps) and running
tcpdump, the machine would panic.  At panic, the ithread was still in
the original (not dead) if_input() path, and was accessing stale BPF
data structs.  By using a dying flag, I can close the interface prior
to if_detach() to be certain the interface cannot send packets up in
the middle of ether_ifdetach.
2009-06-24 21:09:56 +00:00
gallatin
87595b5020 Allow admin to specify the initial mtu upon driver load
for mxge.
2009-06-24 14:47:32 +00:00
gallatin
6f1a23c328 - Fix bug where device would loose promisc setting when reset.
- Allow all rss hash modes to be chosen
2009-06-23 20:22:34 +00:00
gallatin
7e640cb24d Revert most of 193311 so as to track mxge transmit stats
on a per-ring basis and avoid racy (and costly) updates
to the ifp stats via drbr by defining NO_SLOW_STATS

Discussed with: kmacy
2009-06-23 19:04:25 +00:00
gallatin
bc389932fa Update mxge firmware from 1.4.39 to 1.4.43. Changes include:
- Support for 10G-PCIE*-8B*-C (dual-port CX4)  NICs
- For dual-port NICs, f/w failover is now a few microsecs
    instead of a few millisecs.
-  On failover, f/w sends RARP broadcast to make the change
   immediately known to the network
- Fixed a bug observed on IBM X3 architecture where
   some spurious ecrc errors would be reported when OS enabled
   ecrc support.

Sponsored by: Myricom Inc.
2009-06-23 18:00:43 +00:00
gallatin
260369c166 Implement minimal set of changes suggested by bz to make
mxge no longer depend on INET.
2009-06-23 17:42:06 +00:00
gallatin
0ccb73a323 Buf-ring fixes for mxge
- always maintain byte/mcast/drop stats via drbr
- move #define of IFNET_BUF_RING so that its picked
  up by all files in the driver
- conditionalize IFNET_BUF_RING on the FreeBSD_version
  bump just after it appeared in the tree.

Sponsored by: Myricom Inc.
2009-06-02 16:52:33 +00:00
gallatin
427620ee06 Set an rx jumbo cluster to the correct size before
using bus_dmamap_load_mbuf_sg() on it. This
prevents data corruption when the mxge MTU is
between 4076 and 8172 on machines with 4KB
pages and MXGE_VIRT_JUMBOS is in use (which it
isn't, in -current or -stable)
2009-06-01 19:16:57 +00:00
gallatin
ca804bea3e Fix build: Make forgotten IFNET_MULTIQUEUE to IFNET_BUF_RING
ifdef change.
2009-04-27 17:24:47 +00:00
gallatin
2e2b8cdbbc Updates to mxge for multiple tx/rx rings:
- Update mxge to use if_transmit(), and the new buf_ring
  interfaces, so as to enable multiple transmit queues.
  Use of if_transmit() is conditional on IFNET_BUF_RING,
  and is enabled by default (as in if_em).

- Record a flow id on receive if receive hashing is active.
  I currently only record the rx ring id (0..8) rather than
  the 32-bit topelitz hash result, as doing the latter would
  require shifting the driver to use a larger rx return ring.

Sponsored by:  Myricom, Inc.
2009-04-27 15:45:54 +00:00
gallatin
0df1aedf21 Fix cut/paste error in previous commit and use the
correct value for SFP+ reserved media type.

MFC after:  1 week
2009-02-17 22:25:19 +00:00
gallatin
6bae60e426 Better support for recent Myricom 10GbE NICs
- Update to firmware 1.4.39 for dual-chip NIC (10G-PCIE2-xxx)
  support, and SFP+ i2c support

- Identify newer "B" NICs (10G-PCIEx-8B-x) correctly, rather than
  mis-identifying them as "A" NICs (cosmetic only)

- Identify the IFM_10G_LRM ifmedia type, where applicable.

- Identify ifmedia types for SFP+ based NICs

- Update copyright

Sponsored by: Myricom
MFC after: 1 week
2009-02-17 22:15:58 +00:00
rdivacky
cc499f763e Remove obsolete C preprocessor assertions.
Approved by:    kib (mentor)
2009-02-12 18:33:56 +00:00
gallatin
187e163c24 Restore sfence semantics in mxge after the introduction
of a global mfence based mb() in r185162
2008-11-24 19:00:57 +00:00
kmacy
9d3bb599b1 - bump __FreeBSD version to reflect added buf_ring, memory barriers,
and ifnet functions

- add memory barriers to <machine/atomic.h>
- update drivers to only conditionally define their own

- add lockless producer / consumer ring buffer
- remove ring buffer implementation from cxgb and update its callers

- add if_transmit(struct ifnet *ifp, struct mbuf *m) to ifnet to
  allow drivers to efficiently manage multiple hardware queues
  (i.e. not serialize all packets through one ifq)
- expose if_qflush to allow drivers to flush any driver managed queues

This work was supported by Bitgravity Inc. and Chelsio Inc.
2008-11-22 05:55:56 +00:00
gallatin
58aba2ce39 Update to Myri10GE Firmware 1.4.36.
This update fixes a transmit bug in the multi-queue (MSI-X) firmware
which happens when RDMAs complete out of order, and provides
improved support for the new Myri10GE NIC models (10G-PCIE-8Bx)

Sponsored by: Myricom Inc.

MFC after:3 days
2008-10-23 20:07:08 +00:00
gallatin
59a4369f61 Update to Myri10GE firmware version 1.4.33 from 1.4.29. Relevant changes include:
- Support for Myricom 10G-PCIE-8B NICs

- multi-slice firmware: fix a bug when the presence of 32-bit or
 64-bit DMA addresses for interrupt queues and data is not uniform across
 slices.

- Improves automatic selection between ethp_z8e/eth_z8e

Sponsored by: Myricom Inc.
2008-10-01 16:23:35 +00:00
gallatin
85c7cc2d41 Adapt mxge shims to detect phys contig jumbo frames
in RELENG_7

MFC after: 3 days
2008-08-21 16:35:34 +00:00
gallatin
57b9f1fb86 Clean up mxge's use of callouts as pointed out by jhb,
and handle NIC hardware watchdog resets.

- remove buggy code at the top of mxge_tick() which tried
  to detect a race which is already detected in the kernel's
  callout code.

- move callout_stop() and callout_reset() into mxge_close()
  mxge_open() rather than doing the callout manipulation
  all over the place.

- use callout_drain(), rather than callout_stop() to prevent
  a potential race between mxge_tick() and mxge_detach()
  which could lead to softclock using a destroyed mutex

- restructure the mxge_tick() and mxge_watchdog_reset()
  routines to avoid resetting a callout, and then
  immediately stopping it if the watchdog reset routine
  is called, and fails.

- enable the driver to handle NIC hardware watchdog
  resets by restoring the NIC's PCI config space, which is
  lost when the NIC hardware watchdog triggers.

Reviewed by: jhb (previus version)
2008-07-17 15:46:35 +00:00
gallatin
f4c98f7455 Initialize if_baudrate using IF_Gbps() macro.
Note that if_baudrate is a long, and 32-bits isn't enough to properly
represent 10Gb/s.

Pointed out by: dwhite
2008-04-02 13:59:43 +00:00
gallatin
d574f1c4f5 Remove dead code which makes a call to mem_range_attr_set().
This fixes a bug where mxge did not declare a dependancy on
mem(4), and failed to load with options nomem.

Pointed out by: antoine
2008-03-12 15:36:00 +00:00
gallatin
0e60a1b33c 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