diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h index fcf94ee8fb62..4563f800a291 100644 --- a/drivers/net/wireless/ath/ath10k/core.h +++ b/drivers/net/wireless/ath/ath10k/core.h @@ -52,18 +52,10 @@ struct ath10k_skb_cb { struct { u8 vdev_id; - u16 msdu_id; u8 tid; bool is_offchan; - bool is_conf; - bool discard; - bool no_ack; - u8 refcount; struct sk_buff *txfrag; - struct sk_buff *msdu; } __packed htt; - - /* 4 bytes left on 64bit arch */ } __packed; static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb) diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index a39fbf4536c0..62ea9c8f80c4 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -1140,7 +1140,7 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) break; } - ath10k_txrx_tx_completed(htt, &tx_done); + ath10k_txrx_tx_unref(htt, &tx_done); break; } case HTT_T2H_MSG_TYPE_TX_COMPL_IND: { @@ -1174,7 +1174,7 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) for (i = 0; i < resp->data_tx_completion.num_msdus; i++) { msdu_id = resp->data_tx_completion.msdus[i]; tx_done.msdu_id = __le16_to_cpu(msdu_id); - ath10k_txrx_tx_completed(htt, &tx_done); + ath10k_txrx_tx_unref(htt, &tx_done); } break; } diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index c4bbf74815f4..06946d2191aa 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -117,7 +117,7 @@ int ath10k_htt_tx_attach(struct ath10k_htt *htt) static void ath10k_htt_tx_cleanup_pending(struct ath10k_htt *htt) { - struct sk_buff *txdesc; + struct htt_tx_done tx_done = {0}; int msdu_id; /* No locks needed. Called after communication with the device has @@ -127,18 +127,13 @@ static void ath10k_htt_tx_cleanup_pending(struct ath10k_htt *htt) if (!test_bit(msdu_id, htt->used_msdu_ids)) continue; - txdesc = htt->pending_tx[msdu_id]; - if (!txdesc) - continue; - ath10k_dbg(ATH10K_DBG_HTT, "force cleanup msdu_id %hu\n", msdu_id); - if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0) - ATH10K_SKB_CB(txdesc)->htt.refcount = 1; + tx_done.discard = 1; + tx_done.msdu_id = msdu_id; - ATH10K_SKB_CB(txdesc)->htt.discard = true; - ath10k_txrx_tx_unref(htt, txdesc); + ath10k_txrx_tx_unref(htt, &tx_done); } } @@ -152,26 +147,7 @@ void ath10k_htt_tx_detach(struct ath10k_htt *htt) void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb) { - struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb); - struct ath10k_htt *htt = &ar->htt; - - if (skb_cb->htt.is_conf) { - dev_kfree_skb_any(skb); - return; - } - - if (skb_cb->is_aborted) { - skb_cb->htt.discard = true; - - /* if the skbuff is aborted we need to make sure we'll free up - * the tx resources, we can't simply run tx_unref() 2 times - * because if htt tx completion came in earlier we'd access - * unallocated memory */ - if (skb_cb->htt.refcount > 1) - skb_cb->htt.refcount = 1; - } - - ath10k_txrx_tx_unref(htt, skb); + dev_kfree_skb_any(skb); } int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt) @@ -192,8 +168,6 @@ int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt) cmd = (struct htt_cmd *)skb->data; cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_VERSION_REQ; - ATH10K_SKB_CB(skb)->htt.is_conf = true; - ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); if (ret) { dev_kfree_skb_any(skb); @@ -233,8 +207,6 @@ int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u8 mask, u64 cookie) req->cookie_lsb = cpu_to_le32(cookie & 0xffffffff); req->cookie_msb = cpu_to_le32((cookie & 0xffffffff00000000ULL) >> 32); - ATH10K_SKB_CB(skb)->htt.is_conf = true; - ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); if (ret) { ath10k_warn("failed to send htt type stats request: %d", ret); @@ -321,8 +293,6 @@ int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt) #undef desc_offset - ATH10K_SKB_CB(skb)->htt.is_conf = true; - ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); if (ret) { dev_kfree_skb_any(skb); @@ -335,7 +305,6 @@ int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt) int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) { struct device *dev = htt->ar->dev; - struct ath10k_skb_cb *skb_cb; struct sk_buff *txdesc = NULL; struct htt_cmd *cmd; u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id; @@ -364,7 +333,7 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) res = msdu_id; goto err; } - htt->pending_tx[msdu_id] = txdesc; + htt->pending_tx[msdu_id] = msdu; spin_unlock_bh(&htt->tx_lock); res = ath10k_skb_map(dev, msdu); @@ -381,15 +350,6 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) memcpy(cmd->mgmt_tx.hdr, msdu->data, min_t(int, msdu->len, HTT_MGMT_FRM_HDR_DOWNLOAD_LEN)); - /* refcount is decremented by HTC and HTT completions until it reaches - * zero and is freed */ - skb_cb = ATH10K_SKB_CB(txdesc); - skb_cb->htt.is_conf = false; - skb_cb->htt.msdu_id = msdu_id; - skb_cb->htt.refcount = 2; - skb_cb->htt.msdu = msdu; - skb_cb->htt.txfrag = NULL; - res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc); if (res) goto err; @@ -417,7 +377,6 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) struct htt_cmd *cmd; struct htt_data_tx_desc_frag *tx_frags; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data; - struct ath10k_skb_cb *skb_cb; struct sk_buff *txdesc = NULL; struct sk_buff *txfrag = NULL; u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id; @@ -470,7 +429,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) res = msdu_id; goto err; } - htt->pending_tx[msdu_id] = txdesc; + htt->pending_tx[msdu_id] = msdu; spin_unlock_bh(&htt->tx_lock); res = ath10k_skb_map(dev, msdu); @@ -553,15 +512,6 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) memcpy(cmd->data_tx.prefetch, msdu->data, prefetch_len); - /* refcount is decremented by HTC and HTT completions until it reaches - * zero and is freed */ - skb_cb = ATH10K_SKB_CB(txdesc); - skb_cb->htt.is_conf = false; - skb_cb->htt.msdu_id = msdu_id; - skb_cb->htt.refcount = 2; - skb_cb->htt.txfrag = txfrag; - skb_cb->htt.msdu = msdu; - res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc); if (res) goto err; diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 0d367e46ba9a..9112e6d6f75c 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -1757,8 +1757,6 @@ static void ath10k_tx(struct ieee80211_hw *hw, ath10k_tx_h_seq_no(skb); } - ATH10K_SKB_CB(skb)->is_mapped = false; - ATH10K_SKB_CB(skb)->is_aborted = false; ATH10K_SKB_CB(skb)->htt.is_offchan = false; ATH10K_SKB_CB(skb)->htt.vdev_id = vdev_id; ATH10K_SKB_CB(skb)->htt.tid = tid; diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c index f6fed31ac545..15395afae957 100644 --- a/drivers/net/wireless/ath/ath10k/txrx.c +++ b/drivers/net/wireless/ath/ath10k/txrx.c @@ -44,21 +44,25 @@ static void ath10k_report_offchan_tx(struct ath10k *ar, struct sk_buff *skb) spin_unlock_bh(&ar->data_lock); } -void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc) +void ath10k_txrx_tx_unref(struct ath10k_htt *htt, + const struct htt_tx_done *tx_done) { struct device *dev = htt->ar->dev; struct ieee80211_tx_info *info; - struct sk_buff *txfrag = ATH10K_SKB_CB(txdesc)->htt.txfrag; - struct sk_buff *msdu = ATH10K_SKB_CB(txdesc)->htt.msdu; + struct sk_buff *msdu, *txfrag; int ret; - if (ATH10K_SKB_CB(txdesc)->htt.refcount == 0) - return; + ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion msdu_id %u discard %d no_ack %d\n", + tx_done->msdu_id, !!tx_done->discard, !!tx_done->no_ack); - ATH10K_SKB_CB(txdesc)->htt.refcount--; - - if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0) + if (tx_done->msdu_id >= htt->max_num_pending_tx) { + ath10k_warn("warning: msdu_id %d too big, ignoring\n", + tx_done->msdu_id); return; + } + + msdu = htt->pending_tx[tx_done->msdu_id]; + txfrag = ATH10K_SKB_CB(msdu)->htt.txfrag; if (txfrag) { ret = ath10k_skb_unmap(dev, txfrag); @@ -76,7 +80,7 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc) info = IEEE80211_SKB_CB(msdu); - if (ATH10K_SKB_CB(txdesc)->htt.discard) { + if (tx_done->discard) { ieee80211_free_txskb(htt->ar->hw, msdu); goto exit; } @@ -84,7 +88,7 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc) if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) info->flags |= IEEE80211_TX_STAT_ACK; - if (ATH10K_SKB_CB(txdesc)->htt.no_ack) + if (tx_done->no_ack) info->flags &= ~IEEE80211_TX_STAT_ACK; ieee80211_tx_status(htt->ar->hw, msdu); @@ -92,36 +96,12 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc) exit: spin_lock_bh(&htt->tx_lock); - htt->pending_tx[ATH10K_SKB_CB(txdesc)->htt.msdu_id] = NULL; - ath10k_htt_tx_free_msdu_id(htt, ATH10K_SKB_CB(txdesc)->htt.msdu_id); + htt->pending_tx[tx_done->msdu_id] = NULL; + ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id); __ath10k_htt_tx_dec_pending(htt); if (htt->num_pending_tx == 0) wake_up(&htt->empty_tx_wq); spin_unlock_bh(&htt->tx_lock); - - dev_kfree_skb_any(txdesc); -} - -void ath10k_txrx_tx_completed(struct ath10k_htt *htt, - const struct htt_tx_done *tx_done) -{ - struct sk_buff *txdesc; - - ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion msdu_id %u discard %d no_ack %d\n", - tx_done->msdu_id, !!tx_done->discard, !!tx_done->no_ack); - - if (tx_done->msdu_id >= htt->max_num_pending_tx) { - ath10k_warn("warning: msdu_id %d too big, ignoring\n", - tx_done->msdu_id); - return; - } - - txdesc = htt->pending_tx[tx_done->msdu_id]; - - ATH10K_SKB_CB(txdesc)->htt.discard = tx_done->discard; - ATH10K_SKB_CB(txdesc)->htt.no_ack = tx_done->no_ack; - - ath10k_txrx_tx_unref(htt, txdesc); } static const u8 rx_legacy_rate_idx[] = { diff --git a/drivers/net/wireless/ath/ath10k/txrx.h b/drivers/net/wireless/ath/ath10k/txrx.h index e78632a76df7..356dc9c04c9e 100644 --- a/drivers/net/wireless/ath/ath10k/txrx.h +++ b/drivers/net/wireless/ath/ath10k/txrx.h @@ -19,9 +19,8 @@ #include "htt.h" -void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc); -void ath10k_txrx_tx_completed(struct ath10k_htt *htt, - const struct htt_tx_done *tx_done); +void ath10k_txrx_tx_unref(struct ath10k_htt *htt, + const struct htt_tx_done *tx_done); void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info); struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,