Commit Graph

23 Commits

Author SHA1 Message Date
Scott Long
f6b1c44d1f Mega busdma API commit.
Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg.
Lockfunc allows a driver to provide a function for managing its locking
semantics while using busdma.  At the moment, this is used for the
asynchronous busdma_swi and callback mechanism.  Two lockfunc implementations
are provided: busdma_lock_mutex() performs standard mutex operations on the
mutex that is specified from lockfuncarg.  dftl_lock() is a panic
implementation and is defaulted to when NULL, NULL are passed to
bus_dma_tag_create().  The only time that NULL, NULL should ever be used is
when the driver ensures that bus_dmamap_load() will not be deferred.
Drivers that do not provide their own locking can pass
busdma_lock_mutex,&Giant args in order to preserve the former behaviour.

sparc64 and powerpc do not provide real busdma_swi functions, so this is
largely a noop on those platforms.  The busdma_swi on is64 is not properly
locked yet, so warnings will be emitted on this platform when busdma
callback deferrals happen.

If anyone gets panics or warnings from dflt_lock() being called, please
let me know right away.

Reviewed by:	tmm, gibbs
2003-07-01 15:52:06 +00:00
Thomas Moestl
5905e65b56 Some gem and hme hardware bogusly has the intpin register hardwired to
0; detect this case and correct it. While being there, clean up nearby
comments.
2003-07-01 14:11:04 +00:00
Thomas Moestl
18100346d1 Miscellaneous fixes:
- Fix compilation without GEM_DEBUG.
- Do not #define GEM_DEBUG by default; it adds overhead (due to bzero()ing
  RX space) and is not needed any more, since the driver is quite stable
  now.
- Fix watchdog timeouts when failing to load TX packets.
- Do not forcibly limit the number of descriptors used for a packet to
  GEM_NTXSEGS, by passing this number to bus_dma_tag_create(). There is
  no requirement for a limit any lower than the total number of
  available descriptors, and the present limit caused network problems
  due to mbuf chains requiring more descriptors.
  GEM_NTXSEGS is still used to estimate the interrupt window size, for
  which we just need an estimate.

Approved by:	re (rwatson)
2003-05-15 16:57:55 +00:00
Matthew N. Dodd
533294b956 - Don't call pci_enable_io() in drivers (unless needed for resume).
- Don't test memory/port status and emit an error message; the PCI
  bus code will do this now.
2003-04-16 03:16:57 +00:00
Matthew N. Dodd
f246e4a17f - Express hard dependencies on bus (pci, isa, pccard) and
network layer (ether).
- Don't abuse module names to facilitate ifconfig module loading;
  such abuse isn't really needed.  (And if we do need type information
  associated with a module then we should make it explicit and not
  use hacks.)
2003-04-15 06:37:30 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Thomas Moestl
3437dbef6d Free resources when failing to set up the interrupt. 2003-01-21 17:28:36 +00:00
Thomas Moestl
b2d59f4234 bus_dmamap_sync() overhaul:
- Remove NetBSD-style or-ed together BUS_DMASYNC operations, in some
  cases relaxing the (intended) syncing operation a bit.
- Stop pretending that that we can sync part of a dmamap: replace the
  GEM_CDTXSYNC and GEM_CDRXSYNC macros with GEM_CDSYNC to sync the
  complete control map, and combine syncs wherever possible to avoid
  the overhead.
- Sync all maps before unloading them.
- Remove a few syncs which should be unnecessary.
2003-01-21 17:17:01 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Thomas Moestl
cbbdf2367e Add detach, shutdown, suspend and resume methods. The latter two are
not really tested, but are derived from the original NetBSD version.
2003-01-08 20:12:45 +00:00
Thomas Moestl
305f2c0632 - Convert to use bus_dmamap_load_mbuf().
- remove DPRINTF(), there is a CTR*() for any of them, and KTR is
  far more useful to debug this driver.
- some cleanups; remove some unused code and definitions.
2003-01-06 22:09:01 +00:00
Maxime Henrion
6c9ecf447f Catch up with sam's changes to network interfaces. 2002-11-15 14:36:33 +00:00
Sam Leffler
673d91916d network interface driver changes:
o don't strip the Ethernet header from inbound packets; pass packets
  up the stack intact (required significant changes to some drivers)
o reference common definitions in net/ethernet.h (e.g. ETHER_ALIGN)
o track ether_ifattach/ether_ifdetach API changes
o track bpf changes (use BPF_TAP and BPF_MTAP)
o track vlan changes (ifnet capabilities, revised processing scheme, etc.)
o use if_input to pass packets "up"
o call ether_ioctl for default handling of ioctls

Reviewed by:	many
Approved by:	re
2002-11-14 23:54:55 +00:00
Thomas Moestl
08e0fdeb39 Call bpf_mtap() on outgoing packets. 2002-10-26 12:32:07 +00:00
Jake Burkholder
11e3f06011 Fix warning. 2002-07-24 01:09:38 +00:00
Benno Rice
336cca9e5f Incorporate changes made to the NetBSD version of this driver.
- Remove some obsolete code (NetBSD gem.c r1.12)
- Clean up how the local MAC address is programmed (NetBSD gem.c r1.13)
- Make the driver work on PowerMacs with gigabit interfaces
  (NetBSD gem.c r1.14 and r1.15, gemreg.h r1.3 and r1.4, gemvar.h r1.6 and 1.7)
- Suppress RX_MAC interrutps regarding the FRAME_COUNT register.
  (NetBSD gem.c r1.16 and r1.17)
- Fix receiver lockups. (NetBSD gem.c r1.18, gemvar.h r1.8)
- Distinguish between Apple and Sun variants (NetBSD if_gem_pci.c r1.9)

Reviewed by:	tmm
Obtained from:	NetBSD
2002-07-10 10:24:23 +00:00
Thomas Moestl
9bb711b95d Fully reset a gem on some error conditions; otherwise it would hang in
about 1 of 10 cases.

Proposed and tested by:	phk
2002-05-24 12:47:41 +00:00
Mike Barcroft
a30d4b3270 Move the new byte order function prototypes from <sys/param.h> to
<sys/endian.h>.  This puts us in line with NetBSD and OpenBSD.
2002-04-26 22:48:23 +00:00
Thomas Moestl
0d80b9bd88 In some cases, RX descriptors that are signalled to have been completed
by the hardware are still marked as owned. Handle this by installing a
timeout handler to collect this descriptor to avoid having received
packets remain unhandled until the next one arrives.
2002-03-23 19:43:15 +00:00
Alfred Perlstein
e51a25f850 Remove __P. 2002-03-20 02:08:01 +00:00
Thomas Moestl
49921f1e25 Use the pci_enable_* functions instead of manually fiddling with the
command register.

Pointed out by:	msmith
2002-03-11 02:37:19 +00:00
Thomas Moestl
e64a9d374a Set the busmaster enable bit in the PCI command register, as the firmware
of sparc64 machines will not do this for us if the interface is not used
for booting over the network.
2002-03-09 21:52:31 +00:00
Thomas Moestl
42c1b001f7 Add a driver for the Sun GEM (Gigabit) and ERI (100 Mb/s) PCI ethernet
adaptors, ported from NetBSD.
2002-02-27 17:41:06 +00:00