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freebsd-dev/sys/dev/ath
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Adrian Chadd 17bb5fd106 Fix up the EDMA RX setup path to correctly initialise and reset the RX FIFO. 
The original code was .. well, slightly more than incorrect.

It showed up as stalled RX queues if the NIC needed to be frequently
reinitialised (eg during scans.)

This is inspired by work done by Matt Dillon over at the DragonflyBSD
project.

So:

* track when EDMA RX has been stopped and when the MAC has been reset;
* re-initialise the ring only after a reset;
* track whether RX has been stopped/started - just for debugging now;
* don't bother with the RX EOL stuff for EDMA - we don't need the
  interrupt at all.  We also don't need to disable/enable the interrupt
  or start DMA - once new frames are pushed into the ring via the
  normal RX path, it'll just restart RX DMA on its own.

Tested:

* AR9380, STA mode
* AR9380, AP mode
* AR9485, STA mode
* AR9462, STA mode
2014-09-20 01:22:17 +00:00
..
ath_dfs/null The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
ath_hal Bump the HAL_REGRANGE fields from 16 bit to 32 bit. 2014-08-09 18:15:28 +00:00
ath_rate The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
ah_osdep.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
ah_osdep.h Migrate the ath_hal_filltxdesc() API to take a list of buffer/seglen values. 2012-08-05 10:12:27 +00:00
if_ath_ahb.c Remove ia64. 2014-07-07 00:27:09 +00:00
if_ath_alq.c Support sending ATH_ALQ messages with no payload. 2013-05-13 21:17:27 +00:00
if_ath_alq.h Add ALQ beacon debugging. 2013-05-13 21:18:00 +00:00
if_ath_beacon.c Shut down RX before TX - in theory, this should make the chip less likely 2014-08-23 18:55:51 +00:00
if_ath_beacon.h Bring over some initial power save management support, reset path 2014-04-30 02:19:41 +00:00
if_ath_btcoex.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_ath_btcoex.h Bring over the initial static bluetooth coexistence configuration 2013-06-07 09:02:02 +00:00
if_ath_debug.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
if_ath_debug.h Bring over some initial power save management support, reset path 2014-04-30 02:19:41 +00:00
if_ath_keycache.c Bring over some initial power save management support, reset path 2014-04-30 02:19:41 +00:00
if_ath_keycache.h
if_ath_led.c Bring over some initial power save management support, reset path 2014-04-30 02:19:41 +00:00
if_ath_led.h
if_ath_lna_div.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_ath_lna_div.h Initial AR9485/AR933x 1x1 LNA diversity work. 2013-06-14 03:42:10 +00:00
if_ath_misc.h Add tracking for self-generated frames when the VAP is in sleep state. 2014-05-02 00:48:09 +00:00
if_ath_pci.c Remove ia64. 2014-07-07 00:27:09 +00:00
if_ath_rx_edma.c Fix up the EDMA RX setup path to correctly initialise and reset the RX FIFO. 2014-09-20 01:22:17 +00:00
if_ath_rx_edma.h Begin abstracting out the RX path in preparation for RX EDMA support. 2012-07-03 06:59:12 +00:00
if_ath_rx.c Mechanically convert to if_inc_counter(). 2014-09-18 20:47:39 +00:00
if_ath_rx.h Fix the busdma logic to work with EDMA chipsets when using bounce 2013-04-04 08:21:56 +00:00
if_ath_spectral.c The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare 2013-10-26 17:58:36 +00:00
if_ath_spectral.h Add a new (skeleton) spectral mode manager module. 2013-01-02 03:59:02 +00:00
if_ath_sysctl.c Modify the RX path to keep the previous RX descriptor around once it's 2014-05-06 01:15:42 +00:00
if_ath_sysctl.h
if_ath_tdma.c Add casts to have it compile on amd64 without complaining about 2014-05-07 19:07:45 +00:00
if_ath_tdma.h Migrate the TDMA management functions out of if_ath.c into if_ath_tdma.c. 2012-05-20 02:49:42 +00:00
if_ath_tsf.h Migrate the bulk of the RX routines out from if_ath.c to if_ath_rx.[ch]. 2012-05-20 02:05:10 +00:00
if_ath_tx_edma.c Quieten the RX/TX descriptor and FIFO setup debugging. 2014-05-05 08:00:50 +00:00
if_ath_tx_edma.h Begin separating out the TX DMA setup in preparation for TX EDMA support. 2012-07-23 03:52:18 +00:00
if_ath_tx_ht.c Implement my first cut at "correct" node power-save and 2013-05-15 18:33:05 +00:00
if_ath_tx_ht.h Implement my first cut at "correct" node power-save and 2013-05-15 18:33:05 +00:00
if_ath_tx.c Mechanically convert to if_inc_counter(). 2014-09-18 20:47:39 +00:00
if_ath_tx.h Implement a separate hardware queue threshold for aggregate and non-aggr 2013-05-21 18:13:57 +00:00
if_ath.c Fix up the EDMA RX setup path to correctly initialise and reset the RX FIFO. 2014-09-20 01:22:17 +00:00
if_athdfs.h Add a method to explicitly disable radar reporting if required. 2013-01-02 01:36:10 +00:00
if_athioctl.h Implement my first cut at "correct" node power-save and 2013-05-15 18:33:05 +00:00
if_athrate.h Update the rate series setup code to use the decisions already made in 2013-04-17 07:21:30 +00:00
if_athvar.h Fix up the EDMA RX setup path to correctly initialise and reset the RX FIFO. 2014-09-20 01:22:17 +00:00