From 863981e96738983919de841ec669e157e6bdaeb0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Sun, 11 Sep 2016 04:34:46 -0300 Subject: Linux-libre 4.7.1-gnu --- drivers/net/wireless/ath/ath10k/ce.c | 50 +++++++++++++++++++----------------- 1 file changed, 26 insertions(+), 24 deletions(-) (limited to 'drivers/net/wireless/ath/ath10k/ce.c') diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c index edf362928..9fb8d7472 100644 --- a/drivers/net/wireless/ath/ath10k/ce.c +++ b/drivers/net/wireless/ath/ath10k/ce.c @@ -411,7 +411,8 @@ int __ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx, u32 paddr) lockdep_assert_held(&ar_pci->ce_lock); - if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) == 0) + if ((pipe->id != 5) && + CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) == 0) return -ENOSPC; desc->addr = __cpu_to_le32(paddr); @@ -425,6 +426,19 @@ int __ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx, u32 paddr) return 0; } +void ath10k_ce_rx_update_write_idx(struct ath10k_ce_pipe *pipe, u32 nentries) +{ + struct ath10k *ar = pipe->ar; + struct ath10k_ce_ring *dest_ring = pipe->dest_ring; + unsigned int nentries_mask = dest_ring->nentries_mask; + unsigned int write_index = dest_ring->write_index; + u32 ctrl_addr = pipe->ctrl_addr; + + write_index = CE_RING_IDX_ADD(nentries_mask, write_index, nentries); + ath10k_ce_dest_ring_write_index_set(ar, ctrl_addr, write_index); + dest_ring->write_index = write_index; +} + int ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx, u32 paddr) { struct ath10k *ar = pipe->ar; @@ -444,14 +458,10 @@ int ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx, u32 paddr) */ int ath10k_ce_completed_recv_next_nolock(struct ath10k_ce_pipe *ce_state, void **per_transfer_contextp, - u32 *bufferp, - unsigned int *nbytesp, - unsigned int *transfer_idp, - unsigned int *flagsp) + unsigned int *nbytesp) { struct ath10k_ce_ring *dest_ring = ce_state->dest_ring; unsigned int nentries_mask = dest_ring->nentries_mask; - struct ath10k *ar = ce_state->ar; unsigned int sw_index = dest_ring->sw_index; struct ce_desc *base = dest_ring->base_addr_owner_space; @@ -476,21 +486,17 @@ int ath10k_ce_completed_recv_next_nolock(struct ath10k_ce_pipe *ce_state, desc->nbytes = 0; /* Return data from completed destination descriptor */ - *bufferp = __le32_to_cpu(sdesc.addr); *nbytesp = nbytes; - *transfer_idp = MS(__le16_to_cpu(sdesc.flags), CE_DESC_FLAGS_META_DATA); - - if (__le16_to_cpu(sdesc.flags) & CE_DESC_FLAGS_BYTE_SWAP) - *flagsp = CE_RECV_FLAG_SWAPPED; - else - *flagsp = 0; if (per_transfer_contextp) *per_transfer_contextp = dest_ring->per_transfer_context[sw_index]; - /* sanity */ - dest_ring->per_transfer_context[sw_index] = NULL; + /* Copy engine 5 (HTT Rx) will reuse the same transfer context. + * So update transfer context all CEs except CE5. + */ + if (ce_state->id != 5) + dest_ring->per_transfer_context[sw_index] = NULL; /* Update sw_index */ sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index); @@ -501,10 +507,7 @@ int ath10k_ce_completed_recv_next_nolock(struct ath10k_ce_pipe *ce_state, int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state, void **per_transfer_contextp, - u32 *bufferp, - unsigned int *nbytesp, - unsigned int *transfer_idp, - unsigned int *flagsp) + unsigned int *nbytesp) { struct ath10k *ar = ce_state->ar; struct ath10k_pci *ar_pci = ath10k_pci_priv(ar); @@ -513,8 +516,7 @@ int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state, spin_lock_bh(&ar_pci->ce_lock); ret = ath10k_ce_completed_recv_next_nolock(ce_state, per_transfer_contextp, - bufferp, nbytesp, - transfer_idp, flagsp); + nbytesp); spin_unlock_bh(&ar_pci->ce_lock); return ret; @@ -1048,11 +1050,11 @@ int ath10k_ce_alloc_pipe(struct ath10k *ar, int ce_id, * * For the lack of a better place do the check here. */ - BUILD_BUG_ON(2*TARGET_NUM_MSDU_DESC > + BUILD_BUG_ON(2 * TARGET_NUM_MSDU_DESC > (CE_HTT_H2T_MSG_SRC_NENTRIES - 1)); - BUILD_BUG_ON(2*TARGET_10X_NUM_MSDU_DESC > + BUILD_BUG_ON(2 * TARGET_10X_NUM_MSDU_DESC > (CE_HTT_H2T_MSG_SRC_NENTRIES - 1)); - BUILD_BUG_ON(2*TARGET_TLV_NUM_MSDU_DESC > + BUILD_BUG_ON(2 * TARGET_TLV_NUM_MSDU_DESC > (CE_HTT_H2T_MSG_SRC_NENTRIES - 1)); ce_state->ar = ar; -- cgit v1.2.3-54-g00ecf