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qcacmn: Add buffer window for umac reset in progress

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When the peer delete timer/vdev manager response timer expires, host checks
if the umac reset is in progress. If so, host will retrigger the timer.
It is possible that the umac reset is just completed and either of these
two timers got expired. In this case, host will assert saying that the peer
delete response/vdev manager response is not received from FW. FW may take
a few milliseconds to send the peer delete/vdev manager response to the
host after the umac recovery completes.

Hence, to avoid the crash, check if the umac reset was in progress during
the umac reset buffer window.

Add the below changes as well,
1) INI support to get the umac reset buffer window value.
2) Renamed the API dp_umac_reset_is_inprogress as
   dp_get_umac_reset_in_progress_state to return either
   CDP_UMAC_RESET_IN_PROGRESS or
   CDP_UMAC_RESET_IN_PROGRESS_DURING_BUFFER_WINDOW.

Change-Id: Ie15ef0731bad4b0ed955a479f00e297b7ba10729
CRs-Fixed: 3522665
This commit is contained in:
Shashikala Prabhu
2023-06-28 17:26:35 +05:30
committed by Rahul Choudhary
parent 0d36189af1
commit 7f898dfcc2
9 changed files with 165 additions and 23 deletions
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20
wlan_cfg/cfg_dp.h
View File

@@ -1936,6 +1936,23 @@
WLAN_CFG_SPECIAL_MSK, \
CFG_VALUE_OR_DEFAULT, "special frame to deliver to stack")
#ifdef DP_UMAC_HW_RESET_SUPPORT
#define CFG_DP_UMAC_RESET_BUFFER_WINDOW_MIN 100
#define CFG_DP_UMAC_RESET_BUFFER_WINDOW_MAX 10000
#define CFG_DP_UMAC_RESET_BUFFER_WINDOW_DEFAULT 1000
#define CFG_DP_UMAC_RESET_BUFFER_WINDOW \
CFG_INI_UINT("umac_reset_buffer_window", \
CFG_DP_UMAC_RESET_BUFFER_WINDOW_MIN, \
CFG_DP_UMAC_RESET_BUFFER_WINDOW_MAX, \
CFG_DP_UMAC_RESET_BUFFER_WINDOW_DEFAULT, \
CFG_VALUE_OR_DEFAULT, \
"Buffer time to check if umac reset was in progress during this window, configured time is in milliseconds")
#define CFG_DP_UMAC_RESET_BUFFER_WINDOW_CFG CFG(CFG_DP_UMAC_RESET_BUFFER_WINDOW)
#else
#define CFG_DP_UMAC_RESET_BUFFER_WINDOW_CFG
#endif /* DP_UMAC_HW_RESET_SUPPORT */
#define CFG_DP \
CFG(CFG_DP_HTT_PACKET_TYPE) \
CFG(CFG_DP_INT_BATCH_THRESHOLD_OTHER) \
@@ -2066,5 +2083,6 @@
CFG(CFG_DP_POINTER_NUM_THRESHOLD_RX) \
CFG_DP_LOCAL_PKT_CAPTURE_CONFIG \
CFG(CFG_SPECIAL_FRAME_MSK) \
CFG(CFG_DP_SW2RXDMA_LINK_RING)
CFG(CFG_DP_SW2RXDMA_LINK_RING) \
CFG_DP_UMAC_RESET_BUFFER_WINDOW_CFG
#endif /* _CFG_DP_H_ */