Commit Graph

22 Commits

Author SHA1 Message Date
Pedro F. Giffuni
87d8fcc80e Replace 0 with NULL for pointers in misc. device drivers.
Found with devel/coccinelle.
2016-04-12 17:23:03 +00:00
Bjoern A. Zeeb
cd44287c16 Fix what looks like a consistent copy&paste error.
Don't make an integer to a boolean and then compare to a value which
needs an integer comparison.

Spotted by:	reading kernel compile time log
MFC after:	2 weeks
2015-09-27 12:19:36 +00:00
Bjoern A. Zeeb
23d56b1e9c Compare the correct variable to see if memory allocation succeeded.
I don't even want to know where the symbol "version" comes from.

Spotted by:	reading kernel compile time log
MFC after:	2 weeks
2015-09-27 12:17:03 +00:00
Jung-uk Kim
fd90e2ed54 CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than ten
years for head.  However, it is continuously misused as the mpsafe argument
for callout_init(9).  Deprecate the flag and clean up callout_init() calls
to make them more consistent.

Differential Revision:	https://reviews.freebsd.org/D2613
Reviewed by:	jhb
MFC after:	2 weeks
2015-05-22 17:05:21 +00:00
John Baldwin
a2677ff239 Don't bother clearing maps for static DMA allocations to NULL. Instead,
leave them as purely opaque values that are only set by bus_dmamem_alloc().
2014-06-17 18:10:06 +00:00
Gleb Smirnoff
76039bc84f The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare
to this event, adding if_var.h to files that do need it. Also, include
all includes that now are included due to implicit pollution via if_var.h

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-26 17:58:36 +00:00
Sofian Brabez
61bfd86762 Use DEVMETHOD_END macro defined in sys/bus.h instead of {0, 0} sentinel on device_method_t arrays
Reviewed by:	cognet
Approved by:	cognet
2013-01-30 18:01:20 +00:00
Gleb Smirnoff
c6499eccad Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags in sys/dev.
2012-12-04 09:32:43 +00:00
Kevin Lo
0f5e7edc14 Fix typo; s/ouput/output 2012-11-07 07:00:59 +00:00
Dimitry Andric
f4c19bd7e5 Fix the following compilation warnings in nxge(4):
sys/dev/nxge/if_nxge.c:1276:11: error: case value not in enumerated type 'xge_hal_event_e' (aka 'enum xge_hal_event_e') [-Werror,-Wswitch]
	      case XGE_LL_EVENT_TRY_XMIT_AGAIN:
		   ^
  sys/dev/nxge/if_nxge.c:1289:11: error: case value not in enumerated type 'xge_hal_event_e' (aka 'enum xge_hal_event_e') [-Werror,-Wswitch]
	      case XGE_LL_EVENT_DEVICE_RESETTING:
		   ^

This is because the switch uses xge_queue_item_t::event_type, which is
an enum xge_hal_event_e, while the XGE_LL_EVENT_xx values are of the
enum xge_event_e.

Since messing around with the enum definitions is too disruptive, the
simplest fix is to cast the argument of the switch to int.

Reviewed by:	gnn
MFC after:	1 week
2012-04-20 21:43:19 +00:00
Ulrich Spörlein
62355ca27f Convert files to UTF-8 2012-01-15 13:23:43 +00:00
Ulrich Spörlein
004a39cd57 Remove spurious 8bit chars, turning files into plain ASCII. 2012-01-15 13:23:33 +00:00
Rebecca Cran
6bccea7c2b Fix typos - remove duplicate "the".
PR:	bin/154928
Submitted by:	Eitan Adler <lists at eitanadler.com>
MFC after: 	3 days
2011-02-21 09:01:34 +00:00
Maxim Sobolev
e50d35e6c6 Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify this
parameter right now is to edit if_var.h file. Also add read-only
sysctl with the same name, so that it's possible to retrieve the
current value.

MFC after:	1 month
2010-05-03 07:32:50 +00:00
John Baldwin
d31c51daa7 Fix compile after previous "harmless" commit.
Pointy hat to:	jhb
2009-11-19 21:47:54 +00:00
John Baldwin
e21e2eea58 These drivers only set if_timer but never set if_watchdog. Just remove
the assignments to if_timer.
2009-11-19 18:11:23 +00:00
Robert Watson
eb956cd041 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
Kip Macy
db7f0b974f - 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
Robert Watson
3be4cb0b4a Merge Neterion if_nxge driver version 2.0.9.11230 with the following
changes:

  01 -  Enhanced LRO:
  LRO feature is extended to support multi-buffer mode. Previously,
  Ethernet frames received in contiguous buffers were offloaded.
  Now, frames received in multiple non-contiguous buffers can be
  offloaded, as well. The driver now supports LRO for jumbo frames.

  02 - Locks Optimization:
  The driver code was re-organized to limit the use of locks.
  Moreover, lock contention was reduced by replacing wait locks
  with try locks.

  03 - Code Optimization:
  The driver code was re-factored  to eliminate some memcpy
  operations.  Fast path loops were optimized.

  04 - Tag Creations:
  Physical Buffer Tags are now optimized based upon frame size.
  For better performance, Physical Memory Maps are now re-used.

  05 - Configuration:
  Features such as TSO, LRO, and Interrupt Mode can be configured
  either at load or at run time. Rx buffer mode (mode 1 or mode 2)
  can be configured at load time through kenv.

  06 - Driver Statistics:
  Run time statistics are enhanced to provide better visibility
  into the driver performance.

  07 - Bug Fixes:
  The driver contains fixes for the problems discovered and
  reported since last submission.

  08 - MSI support:
  Added Message Signaled Interrupt feature which currently uses 1
  message.

  09  Removed feature:
  Rx 3 buffer mode feature has been removed. Driver now supports 1,
  2 and 5 buffer modes of which 2 and 5 buffer modes can be used
  for header separation.

  10  Compiler warning:
  Fixed compiler warning when compiled for 32 bit system.

  11 Copyright notice:
  Source files are updated with the proper copyright notice.

MFC after:	3 days
Submitted by:	Alicia Pena <Alicia dot Pena at neterion dot com>,
		Muhammad Shafiq <Muhammad dot Shafiq at neterion dot com>
2007-10-29 14:19:32 +00:00
Robert Watson
07cb08fd48 Directly initialize nxge's ifaddrp pointer to ifnetp->if_addr rather
than indirecting through ifaddr_byindex, which makes things easier with
respect to virtualized network stacks.

Submitted by:	Marko Zec <zec at icir dot org>
Reviewed by:	Leonid Grossman <Leonid dot Grossman at neterion dot com>
Approved by:	re (kensmith)
2007-07-12 10:03:29 +00:00
Peter Wemm
89200512b3 Fix warnings.
nxge: cast page size fragments down to (int). If the vm's demand paging
PAGE_SIZE is ever too big for that, we've got far bigger problems.
ofw: move va_start() a little earlier. gcc-4.2 doesn't like us modifying
the last arg before the va_start().

Approved by:	re (rwatson)
2007-07-06 00:47:44 +00:00
Sam Leffler
fd3ddbd038 Neterion Xframe 10GbE Server/Storage adapter driver.
The nxge driver provides support for Neterion Xframe-I and Xframe-II
adapters. The driver supports TCP Segmentation Offload (TSO/LSO),
Jumbo frames (5 buffer mode), Header separation (2 and 3 Receive
buffer modes), VLAN, and Promiscuous mode.

Submitted by:	Neterion
Reviewed by:	rwatson
Approved by:	re (kensmith)
2007-06-29 22:47:18 +00:00