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ath11k: Fix target crash due to WBM_IDLE_LINK ring desc shortage

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Make sure the number of WBM_IDLE_LINK ring descriptors is power
of 2. This increases the number of descriptors to 32k from the
current ~18k to fix the target assert because of the shortage in
the descriptors in WBM_IDLE_LINK ring. Remove unnecessary
power of 2 calculation in ath11k_dp_link_desc_setup() as it is
not required after this change.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Vasanthakumar Thiagarajan
2019-11-27 18:30:09 +02:00
committed by Kalle Valo
parent 79c647a3c5
commit 051cefa446
1 changed files with 3 additions and 3 deletions
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6
drivers/net/wireless/ath/ath11k/dp.c
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@@ -478,6 +478,9 @@ static int ath11k_wbm_idle_ring_setup(struct ath11k_base *ab, u32 *n_link_desc)
*n_link_desc = n_mpdu_link_desc + n_mpdu_queue_desc +
n_tx_msdu_link_desc + n_rx_msdu_link_desc;
if (*n_link_desc & (*n_link_desc - 1))
*n_link_desc = 1 << fls(*n_link_desc);
ret = ath11k_dp_srng_setup(ab, &dp->wbm_idle_ring,
HAL_WBM_IDLE_LINK, 0, 0, *n_link_desc);
if (ret) {
@@ -499,9 +502,6 @@ int ath11k_dp_link_desc_setup(struct ath11k_base *ab,
u32 *desc;
int i, ret;
if (n_link_desc & (n_link_desc - 1))
n_link_desc = 1 << fls(n_link_desc);
tot_mem_sz = n_link_desc * HAL_LINK_DESC_SIZE;
tot_mem_sz += HAL_LINK_DESC_ALIGN;