samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qcacmn: reap monitor rings before vdev delete

Browse Source 
In monitor mode, as part of VDEV delete, monitor mode
poll timer is stopped; it is good to reap the monitor rings
once after timer stop to avoid crashes that arise due to
RXDMA2SW ring backpressure.

Change-Id: Ib15b3398087073ad053616c6aa68e295eaebdd17
CRs-Fixed: 2796608
This commit is contained in:
Manikanta Pubbisetty
2020-10-20 15:07:14 +05:30
committed by snandini
parent 85bc644bb6
commit b265955389
1 changed files with 35 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
dp/wifi3.0/dp_main.c
View File

@@ -6563,6 +6563,38 @@ dp_peer_authorize(struct cdp_soc_t *soc_hdl, uint8_t vdev_id,
return status;
}
static void dp_flush_monitor_rings(struct dp_soc *soc)
{
struct dp_pdev *pdev = soc->pdev_list[0];
hal_soc_handle_t hal_soc = soc->hal_soc;
uint32_t lmac_id;
uint32_t hp, tp;
uint8_t dp_intr_id;
int budget;
void *mon_dst_srng;
if (pdev->mon_chan_band == REG_BAND_UNKNOWN)
return;
lmac_id = pdev->ch_band_lmac_id_mapping[pdev->mon_chan_band];
if (qdf_unlikely(lmac_id == DP_MON_INVALID_LMAC_ID))
return;
dp_intr_id = soc->mon_intr_id_lmac_map[lmac_id];
mon_dst_srng = dp_rxdma_get_mon_dst_ring(pdev, lmac_id);
/* reap full ring */
budget = wlan_cfg_get_dma_mon_stat_ring_size(pdev->wlan_cfg_ctx);
hal_get_sw_hptp(hal_soc, mon_dst_srng, &tp, &hp);
dp_info("Before reap: Monitor DST ring HP %u TP %u", hp, tp);
dp_mon_process(soc, &soc->intr_ctx[dp_intr_id], lmac_id, budget);
hal_get_sw_hptp(hal_soc, mon_dst_srng, &tp, &hp);
dp_info("After reap: Monitor DST ring HP %u TP %u", hp, tp);
}
/**
* dp_vdev_unref_delete() - check and process vdev delete
* @soc : DP specific soc pointer
@@ -6601,8 +6633,10 @@ void dp_vdev_unref_delete(struct dp_soc *soc, struct dp_vdev *vdev,
vdev, QDF_MAC_ADDR_REF(vdev->mac_addr.raw));
if (wlan_op_mode_monitor == vdev->opmode) {
if (soc->intr_mode == DP_INTR_POLL)
if (soc->intr_mode == DP_INTR_POLL) {
qdf_timer_sync_cancel(&soc->int_timer);
dp_flush_monitor_rings(soc);
}
pdev->monitor_vdev = NULL;
goto free_vdev;
}