Newer boards (e.g., Vortex) take time to reset, and wedge on some machines.
Polling on S_COMMAND_IN_PROGRESS would be better, but that doesn't
work with xx_RESET commands on 3c509s.
CONFIG_CNTRL bits by making the "conn" argument to epconfig()
a u_int, not a u_int16_t, and by defining 100mbit media
bits in the upper 16 bits.
A redesigned interface that fixes this properly is in the pipeline.
comments in pr port-i386/2358: "if_ep/3C590 no longer working"
* Only call Vortex media-config code on PCI-attached devices, until
we know if it works on ISA and EISA large-packet devices also.
* Fix typo in printf of MAC address
look for 100mbit Xcvrs, print their names, add to ep_connectors.
* Print 10baseT as 10baseT, since media name (utp) is no longer a unique
transceiver type.
* Redo FIFO memory size printing, also show Tx/Rx split (xxx isa 3c509?).
* Print MAC address on a separate line, with 100Mbit media and fifo-ram
info it no longer fits on the same line as media types.
* Comment the fact that the "connection" media-selection code just doesn't
grok 100Mbit media.
* add code to look for 3c59x/3c90x media-select and autoconfig bits, though
we don't yet dynamically probe media when the autoconfig bit is set
(see previous bullet).
* XXX the whole connector/media code should be redone, perhaps a' la
the BSDI ifmedia design.
For now, we really only need 8 bits of media type.
* Add bogus definitions for 100mbit transcievers, to be set in the
"conn" argument to ep_config(). Should really use the same bits
as in EP_W0_CONFIG_CTRL bits, but I don't know what bits the 3c515
&c use for 100mbit media.
* Define bitflags for 100Mbit transceiver options in ep_connectors.
* Add definitions of powerup/powerdown commands. for interfaces with
power management. Should send a powerup after APM resume?
* Add definition of fragment-busmaster (vortex) START_DMA command.
* Add definition of PCI configuration-space media-present bits.
(really just EP_W3_RESET_OPTIONS remapped into pci config space.)
* Add comments describing what the #define's above are used for.
For now, we really only need 8 bits of media type.
* Add bogus definitions for 100mbit transcievers, to be set in the
"conn" argument to ep_config(). Should really use the same bits
as in EP_W0_CONFIG_CTRL bits, but I don't know what bits the 3c515
&c use for 100mbit media.
* Define bitflags for 100Mbit transceiver options in ep_connectors.
* Add definitions of powerup/powerdown commands. for interfaces with
power management. Should send a powerup after APM resume?
* Add definition of fragment-busmaster (vortex) START_DMA command.
* Add definition of PCI configuration-space media-present bits.
(really just EP_W3_RESET_OPTIONS remapped into pci config space.)
* Add comments describing what the #define's above are used for.
bit from the extended setup inquiry and key off it to:
- Force synchronous negotiation on targs > 7.
- Read additional information returned by wide cards on inquire setup.
- Read sync period on targs > 7.
- Display sync period/offset on targs > 7.
- Set scsi_link.max_target to 15.
cvs: ----------------------------------------------------------------------
Add newline to `Interface disabled' printf and clean up formatting.
Change packet read/write code to align all reads and writes into
memory to an appropriate boundary for the I/O size. This also fixes
a bug where the trailing unaligned bytes (1-3 of them) would be
put in an additional mbuf even if there was enough space for them
in the one we were currently filling.
This has been tested on a 3c905 in an Alpha (32-bit I/O, alignment
required), a 3c905 in an i386 (32-bit I/O, alignment not required)
and a 3c509 in an i386 (16-bit I/O, alignment not required). It
should be tested on a 3c509 in an Alpha with an ISA bus, if somone
can manage to get the two items together.
There are still some bugs in the driver relating to initialisation;
on my Alpha with a 3c905 you need to do an `ifconfig ep0 down;
ifconfig ep0 up' after the initial ifconfig to make it start working.
Apparently there are also some problems with a 3c579 in an i386,
although a 3c905 in an i386 works just fine.
(e.g. from 0x3bc to 0x3bf, for example). Others may require more,
but until there's some special handling for them, 4 should be returned
so that on systems with I/O port accounting, the unit at 0x3bf can be
properly mapped, etc. (OK'd by mycroft.)
1. fix possible hang in en_txlaunch(). when attempting to extend
the length of an mbuf to avoid a flush we should extend it
by cnt [which is ((need - len) % 4)] rather than 4 - cnt.
also, add an EN_DEBUG printf() when we pad/FLUSH a buffer
to help with debugging/understanding what the driver is up to.
2. use interface packet counters
3. when turning off a recv VCI we recompute the new mode. make sure
we don't include the "in service" bit in the new mode, otherwise
a VCI may appear "hung" if you turn it off while a service
interrupt is pending.
4. when shutting down a VCI that is still receiving data, don't bother
going into "drain mode" if only the hardware in service bit is
set (otherwise the VCI may get "hung" in drain mode).
as a result of this we may get "unexpected rx interrupt" messages
which are not really an error, so put this printf in EN_DEBUG.
5. be sure to zero txspeed[lcv] when enabling a VCI (start at full
speed). (hooks for setting txspeed[] are currently not in
the driver, but we are playing with it locally).
credits:
#1: Detected by: Zdenek Salvet <salvet@horn.ics.muni.cz>, fix by me.
#2: Contributed by: Zdenek Salvet <salvet@horn.ics.muni.cz>
#3,#4,#5: Detected by: Milind M. Buddhikot <milind@dworkin.wustl.edu>,
fixed by me.
* Add a slot in the softc, ep_pktlenshift, to indicate that
a board implements ``large packets'' (FDDI-sized frames) and
therefore implicitly shifts the argument to packet-length commands
by two bits to fit a 13-bit length in an 11-bit command argument field.
* Change the reset of station-mask filterto be independent of bus-type
(e.g.,. for 3c515)
* Replace the "2044" constant used to disable TX threshold interrupts
on 3c509-generation cards with a #define. Use 2047 instead,
since that works on the large-packet cards (Vortex, Demon, Boomerang)
and 2044 doesn't.
* Add code to epconfing to probe for large-packet support,
set the softc appropriately, and shift packet sizes in commands
by ep_pktlenshift to compensate for the implicit shift.
* Tweak the epconfig() code to avoid hanging on startup.
Set the Tx threshold to interrupt when there's space for
a maximal-sized ether frame, then do epinit() then epstop(),
instead of just the Tx and Rx reset. Required on at least a 3c595.
Tested on a 3c595, but not on 3c509-generation hardware.
ISA-compatible port space of PCI buslogic cards.
* Add call to bha_pci.c to disable the ISA-compatible ports of a PCI
device. The ISA-compatible ports are enabled by default, which
causes the card to be autoconfigured a second time as an ISA device,
which appears to deadlock the card.
* Change bha_cmd() to return the number of bytes it actually received
in response to a command, or -1 on error.
* Use heuristics (checking for bha-only registers, and checking the size
of the response to BHA_INQURE_EXTENDED) to bha_find, to make sure the
bha driver never matches an aha (Adaptec 1542 or compatible) device.
A single kernel should now boot on either Adaptec or BusLogic controllers,
provided we always probe for BusLogic devices before Adaptec devices,
but this has not yet been verified.
- No more distinction between i/o-mapped and memory-mapped
devices. It's all "bus space" now, and space tags
differentiate the space with finer grain than the
bus chipset tag.
- Add memory barrier methods.
- Implement space alloc/free methods.
- Implement region read/write methods (like memcpy to/from
bus space).
This interface provides a better abstraction for dealing with
machine-independent chipset drivers.
- No more distinction between i/o-mapped and memory-mapped
devices. It's all "bus space" now, and space tags
differentiate the space with finer grain than the
bus chipset tag.
- Add memory barrier methods.
- Implement space alloc/free methods.
- Implement region read/write methods (like memcpy to/from
bus space).
This interface provides a better abstraction for dealing with
machine-independent chipset drivers.
prototypes, and suppress a bogus "might be used uninitialized" warning.
It's clear from reading the logic of the function that produces the
warning that the variable will not be used uninitialized, but the
compiler just isn't smart enough, I guess. Marked XXX for future reference.
restart if we get multiple status interrupts before the softintr()
routine gets a chance to run. The fix is to determine and accumulate
status line changes at the H/W interrupt level, and then check and zero
the accumulated changes when the softint() finally runs. Many thanks
to Bill Studenmund <wrstuden@loki.stanford.edu> for finding and fixing.
thorpej