diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/htt_tx.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/htt_tx.c | 155 |
1 files changed, 153 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index 7cff0d52338f..ad05ab714c9b 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -495,6 +495,9 @@ int ath10k_htt_tx_start(struct ath10k_htt *htt) if (htt->tx_mem_allocated) return 0; + if (ar->dev_type == ATH10K_DEV_TYPE_HL) + return 0; + ret = ath10k_htt_tx_alloc_buf(htt); if (ret) goto free_idr_pending_tx; @@ -934,6 +937,57 @@ static int ath10k_htt_send_rx_ring_cfg_64(struct ath10k_htt *htt) return 0; } +static int ath10k_htt_send_rx_ring_cfg_hl(struct ath10k_htt *htt) +{ + struct ath10k *ar = htt->ar; + struct sk_buff *skb; + struct htt_cmd *cmd; + struct htt_rx_ring_setup_ring32 *ring; + const int num_rx_ring = 1; + u16 flags; + int len; + int ret; + + /* + * the HW expects the buffer to be an integral number of 4-byte + * "words" + */ + BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4)); + BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0); + + len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup_32.hdr) + + (sizeof(*ring) * num_rx_ring); + skb = ath10k_htc_alloc_skb(ar, len); + if (!skb) + return -ENOMEM; + + skb_put(skb, len); + + cmd = (struct htt_cmd *)skb->data; + ring = &cmd->rx_setup_32.rings[0]; + + cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG; + cmd->rx_setup_32.hdr.num_rings = 1; + + flags = 0; + flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD; + flags |= HTT_RX_RING_FLAGS_UNICAST_RX; + flags |= HTT_RX_RING_FLAGS_MULTICAST_RX; + + memset(ring, 0, sizeof(*ring)); + ring->rx_ring_len = __cpu_to_le16(HTT_RX_RING_SIZE_MIN); + ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE); + ring->flags = __cpu_to_le16(flags); + + ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); + if (ret) { + dev_kfree_skb_any(skb); + return ret; + } + + return 0; +} + int ath10k_htt_h2t_aggr_cfg_msg(struct ath10k_htt *htt, u8 max_subfrms_ampdu, u8 max_subfrms_amsdu) @@ -1123,7 +1177,8 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) return 0; err_unmap_msdu: - dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); + if (ar->dev_type != ATH10K_DEV_TYPE_HL) + dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); err_free_txdesc: dev_kfree_skb_any(txdesc); err_free_msdu_id: @@ -1134,6 +1189,94 @@ err: return res; } +#define HTT_TX_HL_NEEDED_HEADROOM \ + (unsigned int)(sizeof(struct htt_cmd_hdr) + \ + sizeof(struct htt_data_tx_desc) + \ + sizeof(struct ath10k_htc_hdr)) + +static int ath10k_htt_tx_hl(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode, + struct sk_buff *msdu) +{ + struct ath10k *ar = htt->ar; + int res, data_len; + struct htt_cmd_hdr *cmd_hdr; + struct htt_data_tx_desc *tx_desc; + struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu); + struct sk_buff *tmp_skb; + bool is_eth = (txmode == ATH10K_HW_TXRX_ETHERNET); + u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu); + u8 tid = ath10k_htt_tx_get_tid(msdu, is_eth); + u8 flags0 = 0; + u16 flags1 = 0; + + data_len = msdu->len; + + switch (txmode) { + case ATH10K_HW_TXRX_RAW: + case ATH10K_HW_TXRX_NATIVE_WIFI: + flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; + /* fall through */ + case ATH10K_HW_TXRX_ETHERNET: + flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); + break; + case ATH10K_HW_TXRX_MGMT: + flags0 |= SM(ATH10K_HW_TXRX_MGMT, + HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); + flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; + break; + } + + if (skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) + flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT; + + flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID); + flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID); + if (msdu->ip_summed == CHECKSUM_PARTIAL && + !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) { + flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD; + flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD; + } + + /* Prepend the HTT header and TX desc struct to the data message + * and realloc the skb if it does not have enough headroom. + */ + if (skb_headroom(msdu) < HTT_TX_HL_NEEDED_HEADROOM) { + tmp_skb = msdu; + + ath10k_dbg(htt->ar, ATH10K_DBG_HTT, + "Not enough headroom in skb. Current headroom: %u, needed: %u. Reallocating...\n", + skb_headroom(msdu), HTT_TX_HL_NEEDED_HEADROOM); + msdu = skb_realloc_headroom(msdu, HTT_TX_HL_NEEDED_HEADROOM); + kfree_skb(tmp_skb); + if (!msdu) { + ath10k_warn(htt->ar, "htt hl tx: Unable to realloc skb!\n"); + res = -ENOMEM; + goto out; + } + } + + skb_push(msdu, sizeof(*cmd_hdr)); + skb_push(msdu, sizeof(*tx_desc)); + cmd_hdr = (struct htt_cmd_hdr *)msdu->data; + tx_desc = (struct htt_data_tx_desc *)(msdu->data + sizeof(*cmd_hdr)); + + cmd_hdr->msg_type = HTT_H2T_MSG_TYPE_TX_FRM; + tx_desc->flags0 = flags0; + tx_desc->flags1 = __cpu_to_le16(flags1); + tx_desc->len = __cpu_to_le16(data_len); + tx_desc->id = 0; + tx_desc->frags_paddr = 0; /* always zero */ + /* Initialize peer_id to INVALID_PEER because this is NOT + * Reinjection path + */ + tx_desc->peerid = __cpu_to_le32(HTT_INVALID_PEERID); + + res = ath10k_htc_send(&htt->ar->htc, htt->eid, msdu); + +out: + return res; +} + static int ath10k_htt_tx_32(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode, struct sk_buff *msdu) @@ -1561,11 +1704,19 @@ static const struct ath10k_htt_tx_ops htt_tx_ops_64 = { .htt_free_txbuff = ath10k_htt_tx_free_cont_txbuf_64, }; +static const struct ath10k_htt_tx_ops htt_tx_ops_hl = { + .htt_send_rx_ring_cfg = ath10k_htt_send_rx_ring_cfg_hl, + .htt_send_frag_desc_bank_cfg = ath10k_htt_send_frag_desc_bank_cfg_32, + .htt_tx = ath10k_htt_tx_hl, +}; + void ath10k_htt_set_tx_ops(struct ath10k_htt *htt) { struct ath10k *ar = htt->ar; - if (ar->hw_params.target_64bit) + if (ar->dev_type == ATH10K_DEV_TYPE_HL) + htt->tx_ops = &htt_tx_ops_hl; + else if (ar->hw_params.target_64bit) htt->tx_ops = &htt_tx_ops_64; else htt->tx_ops = &htt_tx_ops_32; |