diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/ce.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/ce.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c index 9e6daa9c28b8..e46951b8fb92 100644 --- a/drivers/net/wireless/ath/ath10k/ce.c +++ b/drivers/net/wireless/ath/ath10k/ce.c @@ -283,7 +283,7 @@ static int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state, if (unlikely(CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) <= 0)) { - ret = -EIO; + ret = -ENOSR; goto exit; } @@ -338,6 +338,21 @@ int ath10k_ce_send(struct ath10k_ce_pipe *ce_state, return ret; } +int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe) +{ + struct ath10k *ar = pipe->ar; + struct ath10k_pci *ar_pci = ath10k_pci_priv(ar); + int delta; + + spin_lock_bh(&ar_pci->ce_lock); + delta = CE_RING_DELTA(pipe->src_ring->nentries_mask, + pipe->src_ring->write_index, + pipe->src_ring->sw_index - 1); + spin_unlock_bh(&ar_pci->ce_lock); + + return delta; +} + int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state, void *per_recv_context, u32 buffer) |