Rev 1.41:
> use a nop with I bit set at the end of the tx chain. This avoids a race
> between status update and clearing the suspend bit on machines which can't
> write data smaller than 32bits at a time.
This should fix PR port-alpha/30560.
Rev 1.50:
> Fix nasty bug where driver would not correctly catch and handle an rnr
> condition when it was due to the the recieve buffers being exhausted with
> no packet transmits during that time. Symptom was that the fxp would
> simply stop interrupting for the next 15 seconds until the watchdog kicked
> in and reset the chip due to 15 seconds of inactivity, making the fxp very
> poorly behaved when hammered on hard.
Rev 1.61:
> Defer reinitialisation of the RU until after the interrupt handler has had
> a chance to process all pending packets, otherwise the chip may overwrite
> their mbuf clusters after we have freed them.
>
> Eliminates a race that can cause random pool corruption when reconfiguring
> an interface under heavy network load.
And one more change for RX sanity:
- put RU into suspend when the last RFA is processed.
These RNR/RU changes may fix pool corruption problems on fxp.
Tested on AlphaPC164 and i386 with i82559 and i82550.
Add __attribute__((__format__(__printf__,2,3))) to device_printf()
so that the compiler will help us detect bad arguments.
Retire unused subroutine m_defrag(), and unused declaration m_getcl().
Rx ICV errors using evcnt(9).
In promiscuous mode, and when scanning (hmm), ask the NIC for bad
packets (e.g., those that do not pass CRC32). Pass bad packets to
radiotap listeners. Pass packets to radiotap listeners before
stripping FCS. Re-order operations in atw_rxintr() to accomplish
all of this without passing bad packets up to net80211.
Set radiotap channel once in atw_tune() instead of in atw_rxintr().
Fix an endianness bug: it_len is little-endian, but bpf_mtap2()'s
argument needs to be in host order.
tap only RSSI when there is a Philips RF front-end. Tap both Barker
lock quality and RSSI when there is any other RF front-end.
Provide radiotap listeners a more complete picture of channel
activity:
in promiscuous mode, tap frames who do not pass the CRC32 check.
Flag packets that were received with a short preamble. Ask
the NIC to pass us 802.11 Control frames. Pass frames to
radiotap listeners before stripping the FCS. Re-order operations
in rtw_intr_rx() in order to accomplish all of this, taking
care not to pass a broken packet to net80211!
Do not provide a flags field when tapping xmitted frames.
Assert sane Rx packet lengths. Really should check and drop instead
of KASSERTing. I will revisit this, soon.
Update copyright.
http://mail-index.netbsd.org/tech-kern/2007/11/09/0001.html
sysmon_envsys_create() and sysmon_envsys_destroy() were added to
create/destroy sysmon_envsys objects (and its TAILQ/LIST for sensors/events).
sysmon_envsys_sensor_attach() and sysmon_envsys_sensor_detach() were
added to attach/detach sensors to a specified sysmon_envsys device.
The events framework is now per device and configurable via the
ENVSYS_SETDICTIONARY ioctl or /etc/envsys.conf and envstat(8).
Update all users and documentation to reflect these changes.
Do not alias the Rx descriptor word ar_ctl to ar_rssi with a #define.
Instead, call the member ar_ctlrssi.
Convert the ugly macro ATW_RXDESC_INIT() to an inline subroutine,
atw_rxdesc_init().
Do not load an empty IEEE80211_RADIOTAP_FLAGS field into the Tx
radiotap header.
rtw_rxdesc_init: before initializing a Rx descriptor's
control word, synchronize the Rx buffer
rtw_start, be paranoid: set the "NIC owns" bit on a Tx
descriptor dead last. Always reinitialize the "next
Tx descriptor" pointer, just in case it got clobbered
somehow.
Let the compiler decide whether to inline rtw_collect_txring or
not.
