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Add some more OS_MARK probes to the RX DMA setup/teardown code path.

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I'm trying to debug the RX DMA path and help the ath9k guys with
"RX dma abort stuck" issue that both our drivers have.
This commit is contained in:
adrian 2011-04-07 13:14:51 +00:00
parent 43c556e7f5
commit d582d39710
2 changed files with 14 additions and 0 deletions
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10
sys/dev/ath/ath_hal/ah_decode.h
View File

@ -51,5 +51,15 @@ enum {
AH_MARK_ANI_RESET, /* ar*AniReset, opmode */
AH_MARK_ANI_POLL, /* ar*AniReset, listen time */
AH_MARK_ANI_CONTROL, /* ar*AniReset, cmd */
AH_MARK_RX_CTL, /* RX DMA control */
};
enum {
AH_MARK_RX_CTL_PCU_START,
AH_MARK_RX_CTL_PCU_STOP,
AH_MARK_RX_CTL_DMA_START,
AH_MARK_RX_CTL_DMA_STOP,
AH_MARK_RX_CTL_DMA_STOP_ERR,
};
#endif /* _ATH_AH_DECODE_H_ */

4
sys/dev/ath/ath_hal/ar5212/ar5212_recv.c
View File

@ -59,8 +59,10 @@ ar5212EnableReceive(struct ath_hal *ah)
HAL_BOOL
ar5212StopDmaReceive(struct ath_hal *ah)
{
OS_MARK(ah, AH_MARK_RX_CTL, AH_MARK_RX_CTL_DMA_STOP);
OS_REG_WRITE(ah, AR_CR, AR_CR_RXD); /* Set receive disable bit */
if (!ath_hal_wait(ah, AR_CR, AR_CR_RXE, 0)) {
OS_MARK(ah, AH_MARK_RX_CTL, AH_MARK_RX_CTL_DMA_STOP_ERR);
#ifdef AH_DEBUG
ath_hal_printf(ah, "%s: dma failed to stop in 10ms\n"
"AR_CR=0x%08x\nAR_DIAG_SW=0x%08x\n",
@ -82,6 +84,7 @@ ar5212StartPcuReceive(struct ath_hal *ah)
{
struct ath_hal_private *ahp = AH_PRIVATE(ah);
OS_MARK(ah, AH_MARK_RX_CTL, AH_MARK_RX_CTL_PCU_START);
OS_REG_WRITE(ah, AR_DIAG_SW,
OS_REG_READ(ah, AR_DIAG_SW) &~ AR_DIAG_RX_DIS);
ar5212EnableMibCounters(ah);
@ -95,6 +98,7 @@ ar5212StartPcuReceive(struct ath_hal *ah)
void
ar5212StopPcuReceive(struct ath_hal *ah)
{
OS_MARK(ah, AH_MARK_RX_CTL, AH_MARK_RX_CTL_PCU_STOP);
OS_REG_WRITE(ah, AR_DIAG_SW,
OS_REG_READ(ah, AR_DIAG_SW) | AR_DIAG_RX_DIS);
ar5212DisableMibCounters(ah);