1d5c65159SKalle Valo // SPDX-License-Identifier: BSD-3-Clause-Clear 2d5c65159SKalle Valo /* 3d5c65159SKalle Valo * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. 4d5c65159SKalle Valo */ 5d5c65159SKalle Valo 6d5c65159SKalle Valo #include <linux/ieee80211.h> 7acc79d98SSriram R #include <linux/kernel.h> 8acc79d98SSriram R #include <linux/skbuff.h> 9243874c6SManikanta Pubbisetty #include <crypto/hash.h> 10d5c65159SKalle Valo #include "core.h" 11d5c65159SKalle Valo #include "debug.h" 12d5c65159SKalle Valo #include "hal_desc.h" 13d5c65159SKalle Valo #include "hw.h" 14d5c65159SKalle Valo #include "dp_rx.h" 15d5c65159SKalle Valo #include "hal_rx.h" 16d5c65159SKalle Valo #include "dp_tx.h" 17d5c65159SKalle Valo #include "peer.h" 18d5c65159SKalle Valo 19243874c6SManikanta Pubbisetty #define ATH11K_DP_RX_FRAGMENT_TIMEOUT_MS (2 * HZ) 20243874c6SManikanta Pubbisetty 21d5c65159SKalle Valo static u8 *ath11k_dp_rx_h_80211_hdr(struct hal_rx_desc *desc) 22d5c65159SKalle Valo { 23d5c65159SKalle Valo return desc->hdr_status; 24d5c65159SKalle Valo } 25d5c65159SKalle Valo 26d5c65159SKalle Valo static enum hal_encrypt_type ath11k_dp_rx_h_mpdu_start_enctype(struct hal_rx_desc *desc) 27d5c65159SKalle Valo { 28d5c65159SKalle Valo if (!(__le32_to_cpu(desc->mpdu_start.info1) & 29d5c65159SKalle Valo RX_MPDU_START_INFO1_ENCRYPT_INFO_VALID)) 30d5c65159SKalle Valo return HAL_ENCRYPT_TYPE_OPEN; 31d5c65159SKalle Valo 32d5c65159SKalle Valo return FIELD_GET(RX_MPDU_START_INFO2_ENC_TYPE, 33d5c65159SKalle Valo __le32_to_cpu(desc->mpdu_start.info2)); 34d5c65159SKalle Valo } 35d5c65159SKalle Valo 36243874c6SManikanta Pubbisetty static u8 ath11k_dp_rx_h_msdu_start_decap_type(struct hal_rx_desc *desc) 37d5c65159SKalle Valo { 38243874c6SManikanta Pubbisetty return FIELD_GET(RX_MSDU_START_INFO2_DECAP_FORMAT, 39243874c6SManikanta Pubbisetty __le32_to_cpu(desc->msdu_start.info2)); 40243874c6SManikanta Pubbisetty } 41243874c6SManikanta Pubbisetty 42acc79d98SSriram R static u8 ath11k_dp_rx_h_msdu_start_mesh_ctl_present(struct hal_rx_desc *desc) 43acc79d98SSriram R { 44acc79d98SSriram R return FIELD_GET(RX_MSDU_START_INFO2_MESH_CTRL_PRESENT, 45acc79d98SSriram R __le32_to_cpu(desc->msdu_start.info2)); 46acc79d98SSriram R } 47acc79d98SSriram R 48243874c6SManikanta Pubbisetty static bool ath11k_dp_rx_h_mpdu_start_seq_ctrl_valid(struct hal_rx_desc *desc) 49243874c6SManikanta Pubbisetty { 50243874c6SManikanta Pubbisetty return !!FIELD_GET(RX_MPDU_START_INFO1_MPDU_SEQ_CTRL_VALID, 51243874c6SManikanta Pubbisetty __le32_to_cpu(desc->mpdu_start.info1)); 52243874c6SManikanta Pubbisetty } 53243874c6SManikanta Pubbisetty 54243874c6SManikanta Pubbisetty static bool ath11k_dp_rx_h_mpdu_start_fc_valid(struct hal_rx_desc *desc) 55243874c6SManikanta Pubbisetty { 56243874c6SManikanta Pubbisetty return !!FIELD_GET(RX_MPDU_START_INFO1_MPDU_FCTRL_VALID, 57243874c6SManikanta Pubbisetty __le32_to_cpu(desc->mpdu_start.info1)); 58243874c6SManikanta Pubbisetty } 59243874c6SManikanta Pubbisetty 60243874c6SManikanta Pubbisetty static bool ath11k_dp_rx_h_mpdu_start_more_frags(struct sk_buff *skb) 61243874c6SManikanta Pubbisetty { 62243874c6SManikanta Pubbisetty struct ieee80211_hdr *hdr; 63243874c6SManikanta Pubbisetty 64243874c6SManikanta Pubbisetty hdr = (struct ieee80211_hdr *)(skb->data + HAL_RX_DESC_SIZE); 65243874c6SManikanta Pubbisetty return ieee80211_has_morefrags(hdr->frame_control); 66243874c6SManikanta Pubbisetty } 67243874c6SManikanta Pubbisetty 68243874c6SManikanta Pubbisetty static u16 ath11k_dp_rx_h_mpdu_start_frag_no(struct sk_buff *skb) 69243874c6SManikanta Pubbisetty { 70243874c6SManikanta Pubbisetty struct ieee80211_hdr *hdr; 71243874c6SManikanta Pubbisetty 72243874c6SManikanta Pubbisetty hdr = (struct ieee80211_hdr *)(skb->data + HAL_RX_DESC_SIZE); 73243874c6SManikanta Pubbisetty return le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; 74243874c6SManikanta Pubbisetty } 75243874c6SManikanta Pubbisetty 76243874c6SManikanta Pubbisetty static u16 ath11k_dp_rx_h_mpdu_start_seq_no(struct hal_rx_desc *desc) 77243874c6SManikanta Pubbisetty { 78243874c6SManikanta Pubbisetty return FIELD_GET(RX_MPDU_START_INFO1_MPDU_SEQ_NUM, 79243874c6SManikanta Pubbisetty __le32_to_cpu(desc->mpdu_start.info1)); 80d5c65159SKalle Valo } 81d5c65159SKalle Valo 82d5c65159SKalle Valo static bool ath11k_dp_rx_h_attn_msdu_done(struct hal_rx_desc *desc) 83d5c65159SKalle Valo { 84d5c65159SKalle Valo return !!FIELD_GET(RX_ATTENTION_INFO2_MSDU_DONE, 85d5c65159SKalle Valo __le32_to_cpu(desc->attention.info2)); 86d5c65159SKalle Valo } 87d5c65159SKalle Valo 88d5c65159SKalle Valo static bool ath11k_dp_rx_h_attn_l4_cksum_fail(struct hal_rx_desc *desc) 89d5c65159SKalle Valo { 90d5c65159SKalle Valo return !!FIELD_GET(RX_ATTENTION_INFO1_TCP_UDP_CKSUM_FAIL, 91d5c65159SKalle Valo __le32_to_cpu(desc->attention.info1)); 92d5c65159SKalle Valo } 93d5c65159SKalle Valo 94d5c65159SKalle Valo static bool ath11k_dp_rx_h_attn_ip_cksum_fail(struct hal_rx_desc *desc) 95d5c65159SKalle Valo { 96d5c65159SKalle Valo return !!FIELD_GET(RX_ATTENTION_INFO1_IP_CKSUM_FAIL, 97d5c65159SKalle Valo __le32_to_cpu(desc->attention.info1)); 98d5c65159SKalle Valo } 99d5c65159SKalle Valo 100d5c65159SKalle Valo static bool ath11k_dp_rx_h_attn_is_decrypted(struct hal_rx_desc *desc) 101d5c65159SKalle Valo { 102d5c65159SKalle Valo return (FIELD_GET(RX_ATTENTION_INFO2_DCRYPT_STATUS_CODE, 103d5c65159SKalle Valo __le32_to_cpu(desc->attention.info2)) == 104d5c65159SKalle Valo RX_DESC_DECRYPT_STATUS_CODE_OK); 105d5c65159SKalle Valo } 106d5c65159SKalle Valo 107d5c65159SKalle Valo static u32 ath11k_dp_rx_h_attn_mpdu_err(struct hal_rx_desc *desc) 108d5c65159SKalle Valo { 109d5c65159SKalle Valo u32 info = __le32_to_cpu(desc->attention.info1); 110d5c65159SKalle Valo u32 errmap = 0; 111d5c65159SKalle Valo 112d5c65159SKalle Valo if (info & RX_ATTENTION_INFO1_FCS_ERR) 113d5c65159SKalle Valo errmap |= DP_RX_MPDU_ERR_FCS; 114d5c65159SKalle Valo 115d5c65159SKalle Valo if (info & RX_ATTENTION_INFO1_DECRYPT_ERR) 116d5c65159SKalle Valo errmap |= DP_RX_MPDU_ERR_DECRYPT; 117d5c65159SKalle Valo 118d5c65159SKalle Valo if (info & RX_ATTENTION_INFO1_TKIP_MIC_ERR) 119d5c65159SKalle Valo errmap |= DP_RX_MPDU_ERR_TKIP_MIC; 120d5c65159SKalle Valo 121d5c65159SKalle Valo if (info & RX_ATTENTION_INFO1_A_MSDU_ERROR) 122d5c65159SKalle Valo errmap |= DP_RX_MPDU_ERR_AMSDU_ERR; 123d5c65159SKalle Valo 124d5c65159SKalle Valo if (info & RX_ATTENTION_INFO1_OVERFLOW_ERR) 125d5c65159SKalle Valo errmap |= DP_RX_MPDU_ERR_OVERFLOW; 126d5c65159SKalle Valo 127d5c65159SKalle Valo if (info & RX_ATTENTION_INFO1_MSDU_LEN_ERR) 128d5c65159SKalle Valo errmap |= DP_RX_MPDU_ERR_MSDU_LEN; 129d5c65159SKalle Valo 130d5c65159SKalle Valo if (info & RX_ATTENTION_INFO1_MPDU_LEN_ERR) 131d5c65159SKalle Valo errmap |= DP_RX_MPDU_ERR_MPDU_LEN; 132d5c65159SKalle Valo 133d5c65159SKalle Valo return errmap; 134d5c65159SKalle Valo } 135d5c65159SKalle Valo 136d5c65159SKalle Valo static u16 ath11k_dp_rx_h_msdu_start_msdu_len(struct hal_rx_desc *desc) 137d5c65159SKalle Valo { 138d5c65159SKalle Valo return FIELD_GET(RX_MSDU_START_INFO1_MSDU_LENGTH, 139d5c65159SKalle Valo __le32_to_cpu(desc->msdu_start.info1)); 140d5c65159SKalle Valo } 141d5c65159SKalle Valo 142d5c65159SKalle Valo static u8 ath11k_dp_rx_h_msdu_start_sgi(struct hal_rx_desc *desc) 143d5c65159SKalle Valo { 144d5c65159SKalle Valo return FIELD_GET(RX_MSDU_START_INFO3_SGI, 145d5c65159SKalle Valo __le32_to_cpu(desc->msdu_start.info3)); 146d5c65159SKalle Valo } 147d5c65159SKalle Valo 148d5c65159SKalle Valo static u8 ath11k_dp_rx_h_msdu_start_rate_mcs(struct hal_rx_desc *desc) 149d5c65159SKalle Valo { 150d5c65159SKalle Valo return FIELD_GET(RX_MSDU_START_INFO3_RATE_MCS, 151d5c65159SKalle Valo __le32_to_cpu(desc->msdu_start.info3)); 152d5c65159SKalle Valo } 153d5c65159SKalle Valo 154d5c65159SKalle Valo static u8 ath11k_dp_rx_h_msdu_start_rx_bw(struct hal_rx_desc *desc) 155d5c65159SKalle Valo { 156d5c65159SKalle Valo return FIELD_GET(RX_MSDU_START_INFO3_RECV_BW, 157d5c65159SKalle Valo __le32_to_cpu(desc->msdu_start.info3)); 158d5c65159SKalle Valo } 159d5c65159SKalle Valo 160d5c65159SKalle Valo static u32 ath11k_dp_rx_h_msdu_start_freq(struct hal_rx_desc *desc) 161d5c65159SKalle Valo { 162d5c65159SKalle Valo return __le32_to_cpu(desc->msdu_start.phy_meta_data); 163d5c65159SKalle Valo } 164d5c65159SKalle Valo 165d5c65159SKalle Valo static u8 ath11k_dp_rx_h_msdu_start_pkt_type(struct hal_rx_desc *desc) 166d5c65159SKalle Valo { 167d5c65159SKalle Valo return FIELD_GET(RX_MSDU_START_INFO3_PKT_TYPE, 168d5c65159SKalle Valo __le32_to_cpu(desc->msdu_start.info3)); 169d5c65159SKalle Valo } 170d5c65159SKalle Valo 171d5c65159SKalle Valo static u8 ath11k_dp_rx_h_msdu_start_nss(struct hal_rx_desc *desc) 172d5c65159SKalle Valo { 173d5c65159SKalle Valo u8 mimo_ss_bitmap = FIELD_GET(RX_MSDU_START_INFO3_MIMO_SS_BITMAP, 174d5c65159SKalle Valo __le32_to_cpu(desc->msdu_start.info3)); 175d5c65159SKalle Valo 176d5c65159SKalle Valo return hweight8(mimo_ss_bitmap); 177d5c65159SKalle Valo } 178d5c65159SKalle Valo 179243874c6SManikanta Pubbisetty static u8 ath11k_dp_rx_h_mpdu_start_tid(struct hal_rx_desc *desc) 180243874c6SManikanta Pubbisetty { 181243874c6SManikanta Pubbisetty return FIELD_GET(RX_MPDU_START_INFO2_TID, 182243874c6SManikanta Pubbisetty __le32_to_cpu(desc->mpdu_start.info2)); 183243874c6SManikanta Pubbisetty } 184243874c6SManikanta Pubbisetty 185243874c6SManikanta Pubbisetty static u16 ath11k_dp_rx_h_mpdu_start_peer_id(struct hal_rx_desc *desc) 186243874c6SManikanta Pubbisetty { 187243874c6SManikanta Pubbisetty return __le16_to_cpu(desc->mpdu_start.sw_peer_id); 188243874c6SManikanta Pubbisetty } 189243874c6SManikanta Pubbisetty 190d5c65159SKalle Valo static u8 ath11k_dp_rx_h_msdu_end_l3pad(struct hal_rx_desc *desc) 191d5c65159SKalle Valo { 192d5c65159SKalle Valo return FIELD_GET(RX_MSDU_END_INFO2_L3_HDR_PADDING, 193d5c65159SKalle Valo __le32_to_cpu(desc->msdu_end.info2)); 194d5c65159SKalle Valo } 195d5c65159SKalle Valo 196d5c65159SKalle Valo static bool ath11k_dp_rx_h_msdu_end_first_msdu(struct hal_rx_desc *desc) 197d5c65159SKalle Valo { 198d5c65159SKalle Valo return !!FIELD_GET(RX_MSDU_END_INFO2_FIRST_MSDU, 199d5c65159SKalle Valo __le32_to_cpu(desc->msdu_end.info2)); 200d5c65159SKalle Valo } 201d5c65159SKalle Valo 202d5c65159SKalle Valo static bool ath11k_dp_rx_h_msdu_end_last_msdu(struct hal_rx_desc *desc) 203d5c65159SKalle Valo { 204d5c65159SKalle Valo return !!FIELD_GET(RX_MSDU_END_INFO2_LAST_MSDU, 205d5c65159SKalle Valo __le32_to_cpu(desc->msdu_end.info2)); 206d5c65159SKalle Valo } 207d5c65159SKalle Valo 208d5c65159SKalle Valo static void ath11k_dp_rx_desc_end_tlv_copy(struct hal_rx_desc *fdesc, 209d5c65159SKalle Valo struct hal_rx_desc *ldesc) 210d5c65159SKalle Valo { 211d5c65159SKalle Valo memcpy((u8 *)&fdesc->msdu_end, (u8 *)&ldesc->msdu_end, 212d5c65159SKalle Valo sizeof(struct rx_msdu_end)); 213d5c65159SKalle Valo memcpy((u8 *)&fdesc->attention, (u8 *)&ldesc->attention, 214d5c65159SKalle Valo sizeof(struct rx_attention)); 215d5c65159SKalle Valo memcpy((u8 *)&fdesc->mpdu_end, (u8 *)&ldesc->mpdu_end, 216d5c65159SKalle Valo sizeof(struct rx_mpdu_end)); 217d5c65159SKalle Valo } 218d5c65159SKalle Valo 219d5c65159SKalle Valo static u32 ath11k_dp_rxdesc_get_mpdulen_err(struct hal_rx_desc *rx_desc) 220d5c65159SKalle Valo { 221d5c65159SKalle Valo struct rx_attention *rx_attn; 222d5c65159SKalle Valo 223d5c65159SKalle Valo rx_attn = &rx_desc->attention; 224d5c65159SKalle Valo 225d5c65159SKalle Valo return FIELD_GET(RX_ATTENTION_INFO1_MPDU_LEN_ERR, 226d5c65159SKalle Valo __le32_to_cpu(rx_attn->info1)); 227d5c65159SKalle Valo } 228d5c65159SKalle Valo 229d5c65159SKalle Valo static u32 ath11k_dp_rxdesc_get_decap_format(struct hal_rx_desc *rx_desc) 230d5c65159SKalle Valo { 231d5c65159SKalle Valo struct rx_msdu_start *rx_msdu_start; 232d5c65159SKalle Valo 233d5c65159SKalle Valo rx_msdu_start = &rx_desc->msdu_start; 234d5c65159SKalle Valo 235d5c65159SKalle Valo return FIELD_GET(RX_MSDU_START_INFO2_DECAP_FORMAT, 236d5c65159SKalle Valo __le32_to_cpu(rx_msdu_start->info2)); 237d5c65159SKalle Valo } 238d5c65159SKalle Valo 239d5c65159SKalle Valo static u8 *ath11k_dp_rxdesc_get_80211hdr(struct hal_rx_desc *rx_desc) 240d5c65159SKalle Valo { 241d5c65159SKalle Valo u8 *rx_pkt_hdr; 242d5c65159SKalle Valo 243d5c65159SKalle Valo rx_pkt_hdr = &rx_desc->msdu_payload[0]; 244d5c65159SKalle Valo 245d5c65159SKalle Valo return rx_pkt_hdr; 246d5c65159SKalle Valo } 247d5c65159SKalle Valo 248d5c65159SKalle Valo static bool ath11k_dp_rxdesc_mpdu_valid(struct hal_rx_desc *rx_desc) 249d5c65159SKalle Valo { 250d5c65159SKalle Valo u32 tlv_tag; 251d5c65159SKalle Valo 252d5c65159SKalle Valo tlv_tag = FIELD_GET(HAL_TLV_HDR_TAG, 253d5c65159SKalle Valo __le32_to_cpu(rx_desc->mpdu_start_tag)); 254d5c65159SKalle Valo 255d5c65159SKalle Valo return tlv_tag == HAL_RX_MPDU_START ? true : false; 256d5c65159SKalle Valo } 257d5c65159SKalle Valo 258d5c65159SKalle Valo static u32 ath11k_dp_rxdesc_get_ppduid(struct hal_rx_desc *rx_desc) 259d5c65159SKalle Valo { 260d5c65159SKalle Valo return __le16_to_cpu(rx_desc->mpdu_start.phy_ppdu_id); 261d5c65159SKalle Valo } 262d5c65159SKalle Valo 263d5c65159SKalle Valo /* Returns number of Rx buffers replenished */ 264d5c65159SKalle Valo int ath11k_dp_rxbufs_replenish(struct ath11k_base *ab, int mac_id, 265d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring, 266d5c65159SKalle Valo int req_entries, 267d5c65159SKalle Valo enum hal_rx_buf_return_buf_manager mgr, 268d5c65159SKalle Valo gfp_t gfp) 269d5c65159SKalle Valo { 270d5c65159SKalle Valo struct hal_srng *srng; 271d5c65159SKalle Valo u32 *desc; 272d5c65159SKalle Valo struct sk_buff *skb; 273d5c65159SKalle Valo int num_free; 274d5c65159SKalle Valo int num_remain; 275d5c65159SKalle Valo int buf_id; 276d5c65159SKalle Valo u32 cookie; 277d5c65159SKalle Valo dma_addr_t paddr; 278d5c65159SKalle Valo 279d5c65159SKalle Valo req_entries = min(req_entries, rx_ring->bufs_max); 280d5c65159SKalle Valo 281d5c65159SKalle Valo srng = &ab->hal.srng_list[rx_ring->refill_buf_ring.ring_id]; 282d5c65159SKalle Valo 283d5c65159SKalle Valo spin_lock_bh(&srng->lock); 284d5c65159SKalle Valo 285d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 286d5c65159SKalle Valo 287d5c65159SKalle Valo num_free = ath11k_hal_srng_src_num_free(ab, srng, true); 288d5c65159SKalle Valo if (!req_entries && (num_free > (rx_ring->bufs_max * 3) / 4)) 289d5c65159SKalle Valo req_entries = num_free; 290d5c65159SKalle Valo 291d5c65159SKalle Valo req_entries = min(num_free, req_entries); 292d5c65159SKalle Valo num_remain = req_entries; 293d5c65159SKalle Valo 294d5c65159SKalle Valo while (num_remain > 0) { 295d5c65159SKalle Valo skb = dev_alloc_skb(DP_RX_BUFFER_SIZE + 296d5c65159SKalle Valo DP_RX_BUFFER_ALIGN_SIZE); 297d5c65159SKalle Valo if (!skb) 298d5c65159SKalle Valo break; 299d5c65159SKalle Valo 300d5c65159SKalle Valo if (!IS_ALIGNED((unsigned long)skb->data, 301d5c65159SKalle Valo DP_RX_BUFFER_ALIGN_SIZE)) { 302d5c65159SKalle Valo skb_pull(skb, 303d5c65159SKalle Valo PTR_ALIGN(skb->data, DP_RX_BUFFER_ALIGN_SIZE) - 304d5c65159SKalle Valo skb->data); 305d5c65159SKalle Valo } 306d5c65159SKalle Valo 307d5c65159SKalle Valo paddr = dma_map_single(ab->dev, skb->data, 308d5c65159SKalle Valo skb->len + skb_tailroom(skb), 309d5c65159SKalle Valo DMA_FROM_DEVICE); 310d5c65159SKalle Valo if (dma_mapping_error(ab->dev, paddr)) 311d5c65159SKalle Valo goto fail_free_skb; 312d5c65159SKalle Valo 313d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 314d5c65159SKalle Valo buf_id = idr_alloc(&rx_ring->bufs_idr, skb, 0, 315d5c65159SKalle Valo rx_ring->bufs_max * 3, gfp); 316d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 317d5c65159SKalle Valo if (buf_id < 0) 318d5c65159SKalle Valo goto fail_dma_unmap; 319d5c65159SKalle Valo 320d5c65159SKalle Valo desc = ath11k_hal_srng_src_get_next_entry(ab, srng); 321d5c65159SKalle Valo if (!desc) 322d5c65159SKalle Valo goto fail_idr_remove; 323d5c65159SKalle Valo 324d5c65159SKalle Valo ATH11K_SKB_RXCB(skb)->paddr = paddr; 325d5c65159SKalle Valo 326d5c65159SKalle Valo cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, mac_id) | 327d5c65159SKalle Valo FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); 328d5c65159SKalle Valo 329d5c65159SKalle Valo num_remain--; 330d5c65159SKalle Valo 331d5c65159SKalle Valo ath11k_hal_rx_buf_addr_info_set(desc, paddr, cookie, mgr); 332d5c65159SKalle Valo } 333d5c65159SKalle Valo 334d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 335d5c65159SKalle Valo 336d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 337d5c65159SKalle Valo 338d5c65159SKalle Valo return req_entries - num_remain; 339d5c65159SKalle Valo 340d5c65159SKalle Valo fail_idr_remove: 341d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 342d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 343d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 344d5c65159SKalle Valo fail_dma_unmap: 345d5c65159SKalle Valo dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb), 346d5c65159SKalle Valo DMA_FROM_DEVICE); 347d5c65159SKalle Valo fail_free_skb: 348d5c65159SKalle Valo dev_kfree_skb_any(skb); 349d5c65159SKalle Valo 350d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 351d5c65159SKalle Valo 352d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 353d5c65159SKalle Valo 354d5c65159SKalle Valo return req_entries - num_remain; 355d5c65159SKalle Valo } 356d5c65159SKalle Valo 357d5c65159SKalle Valo static int ath11k_dp_rxdma_buf_ring_free(struct ath11k *ar, 358d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring) 359d5c65159SKalle Valo { 360d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 361d5c65159SKalle Valo struct sk_buff *skb; 362d5c65159SKalle Valo int buf_id; 363d5c65159SKalle Valo 364d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 365d5c65159SKalle Valo idr_for_each_entry(&rx_ring->bufs_idr, skb, buf_id) { 366d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 367d5c65159SKalle Valo /* TODO: Understand where internal driver does this dma_unmap of 368d5c65159SKalle Valo * of rxdma_buffer. 369d5c65159SKalle Valo */ 370d5c65159SKalle Valo dma_unmap_single(ar->ab->dev, ATH11K_SKB_RXCB(skb)->paddr, 371d5c65159SKalle Valo skb->len + skb_tailroom(skb), DMA_FROM_DEVICE); 372d5c65159SKalle Valo dev_kfree_skb_any(skb); 373d5c65159SKalle Valo } 374d5c65159SKalle Valo 375d5c65159SKalle Valo idr_destroy(&rx_ring->bufs_idr); 376d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 377d5c65159SKalle Valo 378d5c65159SKalle Valo rx_ring = &dp->rx_mon_status_refill_ring; 379d5c65159SKalle Valo 380d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 381d5c65159SKalle Valo idr_for_each_entry(&rx_ring->bufs_idr, skb, buf_id) { 382d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 383d5c65159SKalle Valo /* XXX: Understand where internal driver does this dma_unmap of 384d5c65159SKalle Valo * of rxdma_buffer. 385d5c65159SKalle Valo */ 386d5c65159SKalle Valo dma_unmap_single(ar->ab->dev, ATH11K_SKB_RXCB(skb)->paddr, 387d5c65159SKalle Valo skb->len + skb_tailroom(skb), DMA_BIDIRECTIONAL); 388d5c65159SKalle Valo dev_kfree_skb_any(skb); 389d5c65159SKalle Valo } 390d5c65159SKalle Valo 391d5c65159SKalle Valo idr_destroy(&rx_ring->bufs_idr); 392d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 393d5c65159SKalle Valo return 0; 394d5c65159SKalle Valo } 395d5c65159SKalle Valo 396d5c65159SKalle Valo static int ath11k_dp_rxdma_pdev_buf_free(struct ath11k *ar) 397d5c65159SKalle Valo { 398d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 399d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; 400d5c65159SKalle Valo 401d5c65159SKalle Valo ath11k_dp_rxdma_buf_ring_free(ar, rx_ring); 402d5c65159SKalle Valo 403d5c65159SKalle Valo rx_ring = &dp->rxdma_mon_buf_ring; 404d5c65159SKalle Valo ath11k_dp_rxdma_buf_ring_free(ar, rx_ring); 405d5c65159SKalle Valo 406d5c65159SKalle Valo rx_ring = &dp->rx_mon_status_refill_ring; 407d5c65159SKalle Valo ath11k_dp_rxdma_buf_ring_free(ar, rx_ring); 408d5c65159SKalle Valo return 0; 409d5c65159SKalle Valo } 410d5c65159SKalle Valo 411d5c65159SKalle Valo static int ath11k_dp_rxdma_ring_buf_setup(struct ath11k *ar, 412d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring, 413d5c65159SKalle Valo u32 ringtype) 414d5c65159SKalle Valo { 415d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 416d5c65159SKalle Valo int num_entries; 417d5c65159SKalle Valo 418d5c65159SKalle Valo num_entries = rx_ring->refill_buf_ring.size / 419d5c65159SKalle Valo ath11k_hal_srng_get_entrysize(ringtype); 420d5c65159SKalle Valo 421d5c65159SKalle Valo rx_ring->bufs_max = num_entries; 422d5c65159SKalle Valo ath11k_dp_rxbufs_replenish(ar->ab, dp->mac_id, rx_ring, num_entries, 423d5c65159SKalle Valo HAL_RX_BUF_RBM_SW3_BM, GFP_KERNEL); 424d5c65159SKalle Valo return 0; 425d5c65159SKalle Valo } 426d5c65159SKalle Valo 427d5c65159SKalle Valo static int ath11k_dp_rxdma_pdev_buf_setup(struct ath11k *ar) 428d5c65159SKalle Valo { 429d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 430d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; 431d5c65159SKalle Valo 432d5c65159SKalle Valo ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_BUF); 433d5c65159SKalle Valo 434d5c65159SKalle Valo rx_ring = &dp->rxdma_mon_buf_ring; 435d5c65159SKalle Valo ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_MONITOR_BUF); 436d5c65159SKalle Valo 437d5c65159SKalle Valo rx_ring = &dp->rx_mon_status_refill_ring; 438d5c65159SKalle Valo ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_MONITOR_STATUS); 439d5c65159SKalle Valo 440d5c65159SKalle Valo return 0; 441d5c65159SKalle Valo } 442d5c65159SKalle Valo 443d5c65159SKalle Valo static void ath11k_dp_rx_pdev_srng_free(struct ath11k *ar) 444d5c65159SKalle Valo { 445d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 446d5c65159SKalle Valo 447d5c65159SKalle Valo ath11k_dp_srng_cleanup(ar->ab, &dp->rx_refill_buf_ring.refill_buf_ring); 448d5c65159SKalle Valo ath11k_dp_srng_cleanup(ar->ab, &dp->rxdma_err_dst_ring); 449d5c65159SKalle Valo ath11k_dp_srng_cleanup(ar->ab, &dp->rx_mon_status_refill_ring.refill_buf_ring); 450d5c65159SKalle Valo ath11k_dp_srng_cleanup(ar->ab, &dp->rxdma_mon_buf_ring.refill_buf_ring); 451d5c65159SKalle Valo } 452d5c65159SKalle Valo 4539c57d7e3SVasanthakumar Thiagarajan void ath11k_dp_pdev_reo_cleanup(struct ath11k_base *ab) 4549c57d7e3SVasanthakumar Thiagarajan { 455acc79d98SSriram R struct ath11k_dp *dp = &ab->dp; 4569c57d7e3SVasanthakumar Thiagarajan int i; 4579c57d7e3SVasanthakumar Thiagarajan 458acc79d98SSriram R for (i = 0; i < DP_REO_DST_RING_MAX; i++) 459acc79d98SSriram R ath11k_dp_srng_cleanup(ab, &dp->reo_dst_ring[i]); 4609c57d7e3SVasanthakumar Thiagarajan } 4619c57d7e3SVasanthakumar Thiagarajan 4629c57d7e3SVasanthakumar Thiagarajan int ath11k_dp_pdev_reo_setup(struct ath11k_base *ab) 4639c57d7e3SVasanthakumar Thiagarajan { 464acc79d98SSriram R struct ath11k_dp *dp = &ab->dp; 4659c57d7e3SVasanthakumar Thiagarajan int ret; 4669c57d7e3SVasanthakumar Thiagarajan int i; 4679c57d7e3SVasanthakumar Thiagarajan 468acc79d98SSriram R for (i = 0; i < DP_REO_DST_RING_MAX; i++) { 469acc79d98SSriram R ret = ath11k_dp_srng_setup(ab, &dp->reo_dst_ring[i], 470acc79d98SSriram R HAL_REO_DST, i, 0, 4719c57d7e3SVasanthakumar Thiagarajan DP_REO_DST_RING_SIZE); 4729c57d7e3SVasanthakumar Thiagarajan if (ret) { 473acc79d98SSriram R ath11k_warn(ab, "failed to setup reo_dst_ring\n"); 4749c57d7e3SVasanthakumar Thiagarajan goto err_reo_cleanup; 4759c57d7e3SVasanthakumar Thiagarajan } 4769c57d7e3SVasanthakumar Thiagarajan } 4779c57d7e3SVasanthakumar Thiagarajan 4789c57d7e3SVasanthakumar Thiagarajan return 0; 4799c57d7e3SVasanthakumar Thiagarajan 4809c57d7e3SVasanthakumar Thiagarajan err_reo_cleanup: 4819c57d7e3SVasanthakumar Thiagarajan ath11k_dp_pdev_reo_cleanup(ab); 4829c57d7e3SVasanthakumar Thiagarajan 4839c57d7e3SVasanthakumar Thiagarajan return ret; 4849c57d7e3SVasanthakumar Thiagarajan } 4859c57d7e3SVasanthakumar Thiagarajan 486d5c65159SKalle Valo static int ath11k_dp_rx_pdev_srng_alloc(struct ath11k *ar) 487d5c65159SKalle Valo { 488d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 489d5c65159SKalle Valo struct dp_srng *srng = NULL; 490d5c65159SKalle Valo int ret; 491d5c65159SKalle Valo 492d5c65159SKalle Valo ret = ath11k_dp_srng_setup(ar->ab, 493d5c65159SKalle Valo &dp->rx_refill_buf_ring.refill_buf_ring, 494d5c65159SKalle Valo HAL_RXDMA_BUF, 0, 495d5c65159SKalle Valo dp->mac_id, DP_RXDMA_BUF_RING_SIZE); 496d5c65159SKalle Valo if (ret) { 497d5c65159SKalle Valo ath11k_warn(ar->ab, "failed to setup rx_refill_buf_ring\n"); 498d5c65159SKalle Valo return ret; 499d5c65159SKalle Valo } 500d5c65159SKalle Valo 501d5c65159SKalle Valo ret = ath11k_dp_srng_setup(ar->ab, &dp->rxdma_err_dst_ring, 502d5c65159SKalle Valo HAL_RXDMA_DST, 0, dp->mac_id, 503d5c65159SKalle Valo DP_RXDMA_ERR_DST_RING_SIZE); 504d5c65159SKalle Valo if (ret) { 505d5c65159SKalle Valo ath11k_warn(ar->ab, "failed to setup rxdma_err_dst_ring\n"); 506d5c65159SKalle Valo return ret; 507d5c65159SKalle Valo } 508d5c65159SKalle Valo 509d5c65159SKalle Valo srng = &dp->rx_mon_status_refill_ring.refill_buf_ring; 510d5c65159SKalle Valo ret = ath11k_dp_srng_setup(ar->ab, 511d5c65159SKalle Valo srng, 512d5c65159SKalle Valo HAL_RXDMA_MONITOR_STATUS, 0, dp->mac_id, 513d5c65159SKalle Valo DP_RXDMA_MON_STATUS_RING_SIZE); 514d5c65159SKalle Valo if (ret) { 515d5c65159SKalle Valo ath11k_warn(ar->ab, 516d5c65159SKalle Valo "failed to setup rx_mon_status_refill_ring\n"); 517d5c65159SKalle Valo return ret; 518d5c65159SKalle Valo } 519d5c65159SKalle Valo ret = ath11k_dp_srng_setup(ar->ab, 520d5c65159SKalle Valo &dp->rxdma_mon_buf_ring.refill_buf_ring, 521d5c65159SKalle Valo HAL_RXDMA_MONITOR_BUF, 0, dp->mac_id, 522d5c65159SKalle Valo DP_RXDMA_MONITOR_BUF_RING_SIZE); 523d5c65159SKalle Valo if (ret) { 524d5c65159SKalle Valo ath11k_warn(ar->ab, 525d5c65159SKalle Valo "failed to setup HAL_RXDMA_MONITOR_BUF\n"); 526d5c65159SKalle Valo return ret; 527d5c65159SKalle Valo } 528d5c65159SKalle Valo 529d5c65159SKalle Valo ret = ath11k_dp_srng_setup(ar->ab, &dp->rxdma_mon_dst_ring, 530d5c65159SKalle Valo HAL_RXDMA_MONITOR_DST, 0, dp->mac_id, 531d5c65159SKalle Valo DP_RXDMA_MONITOR_DST_RING_SIZE); 532d5c65159SKalle Valo if (ret) { 533d5c65159SKalle Valo ath11k_warn(ar->ab, 534d5c65159SKalle Valo "failed to setup HAL_RXDMA_MONITOR_DST\n"); 535d5c65159SKalle Valo return ret; 536d5c65159SKalle Valo } 537d5c65159SKalle Valo 538d5c65159SKalle Valo ret = ath11k_dp_srng_setup(ar->ab, &dp->rxdma_mon_desc_ring, 539d5c65159SKalle Valo HAL_RXDMA_MONITOR_DESC, 0, dp->mac_id, 540d5c65159SKalle Valo DP_RXDMA_MONITOR_DESC_RING_SIZE); 541d5c65159SKalle Valo if (ret) { 542d5c65159SKalle Valo ath11k_warn(ar->ab, 543d5c65159SKalle Valo "failed to setup HAL_RXDMA_MONITOR_DESC\n"); 544d5c65159SKalle Valo return ret; 545d5c65159SKalle Valo } 546d5c65159SKalle Valo 547d5c65159SKalle Valo return 0; 548d5c65159SKalle Valo } 549d5c65159SKalle Valo 550d5c65159SKalle Valo void ath11k_dp_reo_cmd_list_cleanup(struct ath11k_base *ab) 551d5c65159SKalle Valo { 552d5c65159SKalle Valo struct ath11k_dp *dp = &ab->dp; 553d5c65159SKalle Valo struct dp_reo_cmd *cmd, *tmp; 554d5c65159SKalle Valo struct dp_reo_cache_flush_elem *cmd_cache, *tmp_cache; 555d5c65159SKalle Valo 556d5c65159SKalle Valo spin_lock_bh(&dp->reo_cmd_lock); 557d5c65159SKalle Valo list_for_each_entry_safe(cmd, tmp, &dp->reo_cmd_list, list) { 558d5c65159SKalle Valo list_del(&cmd->list); 559d5c65159SKalle Valo dma_unmap_single(ab->dev, cmd->data.paddr, 560d5c65159SKalle Valo cmd->data.size, DMA_BIDIRECTIONAL); 561d5c65159SKalle Valo kfree(cmd->data.vaddr); 562d5c65159SKalle Valo kfree(cmd); 563d5c65159SKalle Valo } 564d5c65159SKalle Valo 565d5c65159SKalle Valo list_for_each_entry_safe(cmd_cache, tmp_cache, 566d5c65159SKalle Valo &dp->reo_cmd_cache_flush_list, list) { 567d5c65159SKalle Valo list_del(&cmd_cache->list); 568d5c65159SKalle Valo dma_unmap_single(ab->dev, cmd_cache->data.paddr, 569d5c65159SKalle Valo cmd_cache->data.size, DMA_BIDIRECTIONAL); 570d5c65159SKalle Valo kfree(cmd_cache->data.vaddr); 571d5c65159SKalle Valo kfree(cmd_cache); 572d5c65159SKalle Valo } 573d5c65159SKalle Valo spin_unlock_bh(&dp->reo_cmd_lock); 574d5c65159SKalle Valo } 575d5c65159SKalle Valo 576d5c65159SKalle Valo static void ath11k_dp_reo_cmd_free(struct ath11k_dp *dp, void *ctx, 577d5c65159SKalle Valo enum hal_reo_cmd_status status) 578d5c65159SKalle Valo { 579d5c65159SKalle Valo struct dp_rx_tid *rx_tid = ctx; 580d5c65159SKalle Valo 581d5c65159SKalle Valo if (status != HAL_REO_CMD_SUCCESS) 582d5c65159SKalle Valo ath11k_warn(dp->ab, "failed to flush rx tid hw desc, tid %d status %d\n", 583d5c65159SKalle Valo rx_tid->tid, status); 584d5c65159SKalle Valo 585d5c65159SKalle Valo dma_unmap_single(dp->ab->dev, rx_tid->paddr, rx_tid->size, 586d5c65159SKalle Valo DMA_BIDIRECTIONAL); 587d5c65159SKalle Valo kfree(rx_tid->vaddr); 588d5c65159SKalle Valo } 589d5c65159SKalle Valo 590d5c65159SKalle Valo static void ath11k_dp_reo_cache_flush(struct ath11k_base *ab, 591d5c65159SKalle Valo struct dp_rx_tid *rx_tid) 592d5c65159SKalle Valo { 593d5c65159SKalle Valo struct ath11k_hal_reo_cmd cmd = {0}; 594d5c65159SKalle Valo unsigned long tot_desc_sz, desc_sz; 595d5c65159SKalle Valo int ret; 596d5c65159SKalle Valo 597d5c65159SKalle Valo tot_desc_sz = rx_tid->size; 598d5c65159SKalle Valo desc_sz = ath11k_hal_reo_qdesc_size(0, HAL_DESC_REO_NON_QOS_TID); 599d5c65159SKalle Valo 600d5c65159SKalle Valo while (tot_desc_sz > desc_sz) { 601d5c65159SKalle Valo tot_desc_sz -= desc_sz; 602d5c65159SKalle Valo cmd.addr_lo = lower_32_bits(rx_tid->paddr + tot_desc_sz); 603d5c65159SKalle Valo cmd.addr_hi = upper_32_bits(rx_tid->paddr); 604d5c65159SKalle Valo ret = ath11k_dp_tx_send_reo_cmd(ab, rx_tid, 605d5c65159SKalle Valo HAL_REO_CMD_FLUSH_CACHE, &cmd, 606d5c65159SKalle Valo NULL); 607d5c65159SKalle Valo if (ret) 608d5c65159SKalle Valo ath11k_warn(ab, 609d5c65159SKalle Valo "failed to send HAL_REO_CMD_FLUSH_CACHE, tid %d (%d)\n", 610d5c65159SKalle Valo rx_tid->tid, ret); 611d5c65159SKalle Valo } 612d5c65159SKalle Valo 613d5c65159SKalle Valo memset(&cmd, 0, sizeof(cmd)); 614d5c65159SKalle Valo cmd.addr_lo = lower_32_bits(rx_tid->paddr); 615d5c65159SKalle Valo cmd.addr_hi = upper_32_bits(rx_tid->paddr); 616d5c65159SKalle Valo cmd.flag |= HAL_REO_CMD_FLG_NEED_STATUS; 617d5c65159SKalle Valo ret = ath11k_dp_tx_send_reo_cmd(ab, rx_tid, 618d5c65159SKalle Valo HAL_REO_CMD_FLUSH_CACHE, 619d5c65159SKalle Valo &cmd, ath11k_dp_reo_cmd_free); 620d5c65159SKalle Valo if (ret) { 621d5c65159SKalle Valo ath11k_err(ab, "failed to send HAL_REO_CMD_FLUSH_CACHE cmd, tid %d (%d)\n", 622d5c65159SKalle Valo rx_tid->tid, ret); 623d5c65159SKalle Valo dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size, 624d5c65159SKalle Valo DMA_BIDIRECTIONAL); 625d5c65159SKalle Valo kfree(rx_tid->vaddr); 626d5c65159SKalle Valo } 627d5c65159SKalle Valo } 628d5c65159SKalle Valo 629d5c65159SKalle Valo static void ath11k_dp_rx_tid_del_func(struct ath11k_dp *dp, void *ctx, 630d5c65159SKalle Valo enum hal_reo_cmd_status status) 631d5c65159SKalle Valo { 632d5c65159SKalle Valo struct ath11k_base *ab = dp->ab; 633d5c65159SKalle Valo struct dp_rx_tid *rx_tid = ctx; 634d5c65159SKalle Valo struct dp_reo_cache_flush_elem *elem, *tmp; 635d5c65159SKalle Valo 636d5c65159SKalle Valo if (status == HAL_REO_CMD_DRAIN) { 637d5c65159SKalle Valo goto free_desc; 638d5c65159SKalle Valo } else if (status != HAL_REO_CMD_SUCCESS) { 639d5c65159SKalle Valo /* Shouldn't happen! Cleanup in case of other failure? */ 640d5c65159SKalle Valo ath11k_warn(ab, "failed to delete rx tid %d hw descriptor %d\n", 641d5c65159SKalle Valo rx_tid->tid, status); 642d5c65159SKalle Valo return; 643d5c65159SKalle Valo } 644d5c65159SKalle Valo 645d5c65159SKalle Valo elem = kzalloc(sizeof(*elem), GFP_ATOMIC); 646d5c65159SKalle Valo if (!elem) 647d5c65159SKalle Valo goto free_desc; 648d5c65159SKalle Valo 649d5c65159SKalle Valo elem->ts = jiffies; 650d5c65159SKalle Valo memcpy(&elem->data, rx_tid, sizeof(*rx_tid)); 651d5c65159SKalle Valo 652d5c65159SKalle Valo spin_lock_bh(&dp->reo_cmd_lock); 653d5c65159SKalle Valo list_add_tail(&elem->list, &dp->reo_cmd_cache_flush_list); 654d5c65159SKalle Valo spin_unlock_bh(&dp->reo_cmd_lock); 655d5c65159SKalle Valo 656d5c65159SKalle Valo /* Flush and invalidate aged REO desc from HW cache */ 657d5c65159SKalle Valo spin_lock_bh(&dp->reo_cmd_lock); 658d5c65159SKalle Valo list_for_each_entry_safe(elem, tmp, &dp->reo_cmd_cache_flush_list, 659d5c65159SKalle Valo list) { 660d5c65159SKalle Valo if (time_after(jiffies, elem->ts + 661d5c65159SKalle Valo msecs_to_jiffies(DP_REO_DESC_FREE_TIMEOUT_MS))) { 662d5c65159SKalle Valo list_del(&elem->list); 663d5c65159SKalle Valo spin_unlock_bh(&dp->reo_cmd_lock); 664d5c65159SKalle Valo 665d5c65159SKalle Valo ath11k_dp_reo_cache_flush(ab, &elem->data); 666d5c65159SKalle Valo kfree(elem); 667d5c65159SKalle Valo spin_lock_bh(&dp->reo_cmd_lock); 668d5c65159SKalle Valo } 669d5c65159SKalle Valo } 670d5c65159SKalle Valo spin_unlock_bh(&dp->reo_cmd_lock); 671d5c65159SKalle Valo 672d5c65159SKalle Valo return; 673d5c65159SKalle Valo free_desc: 674d5c65159SKalle Valo dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size, 675d5c65159SKalle Valo DMA_BIDIRECTIONAL); 676d5c65159SKalle Valo kfree(rx_tid->vaddr); 677d5c65159SKalle Valo } 678d5c65159SKalle Valo 679a36adf54SGovindaraj Saminathan void ath11k_peer_rx_tid_delete(struct ath11k *ar, 680d5c65159SKalle Valo struct ath11k_peer *peer, u8 tid) 681d5c65159SKalle Valo { 682d5c65159SKalle Valo struct ath11k_hal_reo_cmd cmd = {0}; 683d5c65159SKalle Valo struct dp_rx_tid *rx_tid = &peer->rx_tid[tid]; 684d5c65159SKalle Valo int ret; 685d5c65159SKalle Valo 686d5c65159SKalle Valo if (!rx_tid->active) 687d5c65159SKalle Valo return; 688d5c65159SKalle Valo 689d5c65159SKalle Valo cmd.flag = HAL_REO_CMD_FLG_NEED_STATUS; 690d5c65159SKalle Valo cmd.addr_lo = lower_32_bits(rx_tid->paddr); 691d5c65159SKalle Valo cmd.addr_hi = upper_32_bits(rx_tid->paddr); 692d5c65159SKalle Valo cmd.upd0 |= HAL_REO_CMD_UPD0_VLD; 693d5c65159SKalle Valo ret = ath11k_dp_tx_send_reo_cmd(ar->ab, rx_tid, 694d5c65159SKalle Valo HAL_REO_CMD_UPDATE_RX_QUEUE, &cmd, 695d5c65159SKalle Valo ath11k_dp_rx_tid_del_func); 696d5c65159SKalle Valo if (ret) { 697d5c65159SKalle Valo ath11k_err(ar->ab, "failed to send HAL_REO_CMD_UPDATE_RX_QUEUE cmd, tid %d (%d)\n", 698d5c65159SKalle Valo tid, ret); 699d5c65159SKalle Valo dma_unmap_single(ar->ab->dev, rx_tid->paddr, rx_tid->size, 700d5c65159SKalle Valo DMA_BIDIRECTIONAL); 701d5c65159SKalle Valo kfree(rx_tid->vaddr); 702d5c65159SKalle Valo } 703d5c65159SKalle Valo 704d5c65159SKalle Valo rx_tid->active = false; 705d5c65159SKalle Valo } 706d5c65159SKalle Valo 707243874c6SManikanta Pubbisetty static int ath11k_dp_rx_link_desc_return(struct ath11k_base *ab, 708243874c6SManikanta Pubbisetty u32 *link_desc, 709243874c6SManikanta Pubbisetty enum hal_wbm_rel_bm_act action) 710243874c6SManikanta Pubbisetty { 711243874c6SManikanta Pubbisetty struct ath11k_dp *dp = &ab->dp; 712243874c6SManikanta Pubbisetty struct hal_srng *srng; 713243874c6SManikanta Pubbisetty u32 *desc; 714243874c6SManikanta Pubbisetty int ret = 0; 715243874c6SManikanta Pubbisetty 716243874c6SManikanta Pubbisetty srng = &ab->hal.srng_list[dp->wbm_desc_rel_ring.ring_id]; 717243874c6SManikanta Pubbisetty 718243874c6SManikanta Pubbisetty spin_lock_bh(&srng->lock); 719243874c6SManikanta Pubbisetty 720243874c6SManikanta Pubbisetty ath11k_hal_srng_access_begin(ab, srng); 721243874c6SManikanta Pubbisetty 722243874c6SManikanta Pubbisetty desc = ath11k_hal_srng_src_get_next_entry(ab, srng); 723243874c6SManikanta Pubbisetty if (!desc) { 724243874c6SManikanta Pubbisetty ret = -ENOBUFS; 725243874c6SManikanta Pubbisetty goto exit; 726243874c6SManikanta Pubbisetty } 727243874c6SManikanta Pubbisetty 728243874c6SManikanta Pubbisetty ath11k_hal_rx_msdu_link_desc_set(ab, (void *)desc, (void *)link_desc, 729243874c6SManikanta Pubbisetty action); 730243874c6SManikanta Pubbisetty 731243874c6SManikanta Pubbisetty exit: 732243874c6SManikanta Pubbisetty ath11k_hal_srng_access_end(ab, srng); 733243874c6SManikanta Pubbisetty 734243874c6SManikanta Pubbisetty spin_unlock_bh(&srng->lock); 735243874c6SManikanta Pubbisetty 736243874c6SManikanta Pubbisetty return ret; 737243874c6SManikanta Pubbisetty } 738243874c6SManikanta Pubbisetty 739243874c6SManikanta Pubbisetty static void ath11k_dp_rx_frags_cleanup(struct dp_rx_tid *rx_tid, bool rel_link_desc) 740243874c6SManikanta Pubbisetty { 741243874c6SManikanta Pubbisetty struct ath11k_base *ab = rx_tid->ab; 742243874c6SManikanta Pubbisetty 743243874c6SManikanta Pubbisetty lockdep_assert_held(&ab->base_lock); 744243874c6SManikanta Pubbisetty 745243874c6SManikanta Pubbisetty if (rx_tid->dst_ring_desc) { 746243874c6SManikanta Pubbisetty if (rel_link_desc) 747243874c6SManikanta Pubbisetty ath11k_dp_rx_link_desc_return(ab, (u32 *)rx_tid->dst_ring_desc, 748243874c6SManikanta Pubbisetty HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); 749243874c6SManikanta Pubbisetty kfree(rx_tid->dst_ring_desc); 750243874c6SManikanta Pubbisetty rx_tid->dst_ring_desc = NULL; 751243874c6SManikanta Pubbisetty } 752243874c6SManikanta Pubbisetty 753243874c6SManikanta Pubbisetty rx_tid->cur_sn = 0; 754243874c6SManikanta Pubbisetty rx_tid->last_frag_no = 0; 755243874c6SManikanta Pubbisetty rx_tid->rx_frag_bitmap = 0; 756243874c6SManikanta Pubbisetty __skb_queue_purge(&rx_tid->rx_frags); 757243874c6SManikanta Pubbisetty } 758243874c6SManikanta Pubbisetty 759d5c65159SKalle Valo void ath11k_peer_rx_tid_cleanup(struct ath11k *ar, struct ath11k_peer *peer) 760d5c65159SKalle Valo { 761243874c6SManikanta Pubbisetty struct dp_rx_tid *rx_tid; 762d5c65159SKalle Valo int i; 763d5c65159SKalle Valo 764243874c6SManikanta Pubbisetty lockdep_assert_held(&ar->ab->base_lock); 765243874c6SManikanta Pubbisetty 766243874c6SManikanta Pubbisetty for (i = 0; i <= IEEE80211_NUM_TIDS; i++) { 767243874c6SManikanta Pubbisetty rx_tid = &peer->rx_tid[i]; 768243874c6SManikanta Pubbisetty 769d5c65159SKalle Valo ath11k_peer_rx_tid_delete(ar, peer, i); 770243874c6SManikanta Pubbisetty ath11k_dp_rx_frags_cleanup(rx_tid, true); 771243874c6SManikanta Pubbisetty 772243874c6SManikanta Pubbisetty spin_unlock_bh(&ar->ab->base_lock); 773243874c6SManikanta Pubbisetty del_timer_sync(&rx_tid->frag_timer); 774243874c6SManikanta Pubbisetty spin_lock_bh(&ar->ab->base_lock); 775243874c6SManikanta Pubbisetty } 776d5c65159SKalle Valo } 777d5c65159SKalle Valo 778d5c65159SKalle Valo static int ath11k_peer_rx_tid_reo_update(struct ath11k *ar, 779d5c65159SKalle Valo struct ath11k_peer *peer, 780d5c65159SKalle Valo struct dp_rx_tid *rx_tid, 781fe201947SVenkateswara Naralasetty u32 ba_win_sz, u16 ssn, 782fe201947SVenkateswara Naralasetty bool update_ssn) 783d5c65159SKalle Valo { 784d5c65159SKalle Valo struct ath11k_hal_reo_cmd cmd = {0}; 785d5c65159SKalle Valo int ret; 786d5c65159SKalle Valo 787d5c65159SKalle Valo cmd.addr_lo = lower_32_bits(rx_tid->paddr); 788d5c65159SKalle Valo cmd.addr_hi = upper_32_bits(rx_tid->paddr); 789d5c65159SKalle Valo cmd.flag = HAL_REO_CMD_FLG_NEED_STATUS; 790fe201947SVenkateswara Naralasetty cmd.upd0 = HAL_REO_CMD_UPD0_BA_WINDOW_SIZE; 791d5c65159SKalle Valo cmd.ba_window_size = ba_win_sz; 792fe201947SVenkateswara Naralasetty 793fe201947SVenkateswara Naralasetty if (update_ssn) { 794fe201947SVenkateswara Naralasetty cmd.upd0 |= HAL_REO_CMD_UPD0_SSN; 795d5c65159SKalle Valo cmd.upd2 = FIELD_PREP(HAL_REO_CMD_UPD2_SSN, ssn); 796fe201947SVenkateswara Naralasetty } 797d5c65159SKalle Valo 798d5c65159SKalle Valo ret = ath11k_dp_tx_send_reo_cmd(ar->ab, rx_tid, 799d5c65159SKalle Valo HAL_REO_CMD_UPDATE_RX_QUEUE, &cmd, 800d5c65159SKalle Valo NULL); 801d5c65159SKalle Valo if (ret) { 802d5c65159SKalle Valo ath11k_warn(ar->ab, "failed to update rx tid queue, tid %d (%d)\n", 803d5c65159SKalle Valo rx_tid->tid, ret); 804d5c65159SKalle Valo return ret; 805d5c65159SKalle Valo } 806d5c65159SKalle Valo 807d5c65159SKalle Valo rx_tid->ba_win_sz = ba_win_sz; 808d5c65159SKalle Valo 809d5c65159SKalle Valo return 0; 810d5c65159SKalle Valo } 811d5c65159SKalle Valo 812d5c65159SKalle Valo static void ath11k_dp_rx_tid_mem_free(struct ath11k_base *ab, 813d5c65159SKalle Valo const u8 *peer_mac, int vdev_id, u8 tid) 814d5c65159SKalle Valo { 815d5c65159SKalle Valo struct ath11k_peer *peer; 816d5c65159SKalle Valo struct dp_rx_tid *rx_tid; 817d5c65159SKalle Valo 818d5c65159SKalle Valo spin_lock_bh(&ab->base_lock); 819d5c65159SKalle Valo 820d5c65159SKalle Valo peer = ath11k_peer_find(ab, vdev_id, peer_mac); 821d5c65159SKalle Valo if (!peer) { 822d5c65159SKalle Valo ath11k_warn(ab, "failed to find the peer to free up rx tid mem\n"); 823d5c65159SKalle Valo goto unlock_exit; 824d5c65159SKalle Valo } 825d5c65159SKalle Valo 826d5c65159SKalle Valo rx_tid = &peer->rx_tid[tid]; 827d5c65159SKalle Valo if (!rx_tid->active) 828d5c65159SKalle Valo goto unlock_exit; 829d5c65159SKalle Valo 830d5c65159SKalle Valo dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size, 831d5c65159SKalle Valo DMA_BIDIRECTIONAL); 832d5c65159SKalle Valo kfree(rx_tid->vaddr); 833d5c65159SKalle Valo 834d5c65159SKalle Valo rx_tid->active = false; 835d5c65159SKalle Valo 836d5c65159SKalle Valo unlock_exit: 837d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 838d5c65159SKalle Valo } 839d5c65159SKalle Valo 840d5c65159SKalle Valo int ath11k_peer_rx_tid_setup(struct ath11k *ar, const u8 *peer_mac, int vdev_id, 8411441b2f2SManikanta Pubbisetty u8 tid, u32 ba_win_sz, u16 ssn, 8421441b2f2SManikanta Pubbisetty enum hal_pn_type pn_type) 843d5c65159SKalle Valo { 844d5c65159SKalle Valo struct ath11k_base *ab = ar->ab; 845d5c65159SKalle Valo struct ath11k_peer *peer; 846d5c65159SKalle Valo struct dp_rx_tid *rx_tid; 847d5c65159SKalle Valo u32 hw_desc_sz; 848d5c65159SKalle Valo u32 *addr_aligned; 849d5c65159SKalle Valo void *vaddr; 850d5c65159SKalle Valo dma_addr_t paddr; 851d5c65159SKalle Valo int ret; 852d5c65159SKalle Valo 853d5c65159SKalle Valo spin_lock_bh(&ab->base_lock); 854d5c65159SKalle Valo 855d5c65159SKalle Valo peer = ath11k_peer_find(ab, vdev_id, peer_mac); 856d5c65159SKalle Valo if (!peer) { 857d5c65159SKalle Valo ath11k_warn(ab, "failed to find the peer to set up rx tid\n"); 858d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 859d5c65159SKalle Valo return -ENOENT; 860d5c65159SKalle Valo } 861d5c65159SKalle Valo 862d5c65159SKalle Valo rx_tid = &peer->rx_tid[tid]; 863d5c65159SKalle Valo /* Update the tid queue if it is already setup */ 864d5c65159SKalle Valo if (rx_tid->active) { 865d5c65159SKalle Valo paddr = rx_tid->paddr; 866d5c65159SKalle Valo ret = ath11k_peer_rx_tid_reo_update(ar, peer, rx_tid, 867fe201947SVenkateswara Naralasetty ba_win_sz, ssn, true); 868d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 869d5c65159SKalle Valo if (ret) { 870d5c65159SKalle Valo ath11k_warn(ab, "failed to update reo for rx tid %d\n", tid); 871d5c65159SKalle Valo return ret; 872d5c65159SKalle Valo } 873d5c65159SKalle Valo 874d5c65159SKalle Valo ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, 875d5c65159SKalle Valo peer_mac, paddr, 876d5c65159SKalle Valo tid, 1, ba_win_sz); 877d5c65159SKalle Valo if (ret) 878d5c65159SKalle Valo ath11k_warn(ab, "failed to send wmi command to update rx reorder queue, tid :%d (%d)\n", 879d5c65159SKalle Valo tid, ret); 880d5c65159SKalle Valo return ret; 881d5c65159SKalle Valo } 882d5c65159SKalle Valo 883d5c65159SKalle Valo rx_tid->tid = tid; 884d5c65159SKalle Valo 885d5c65159SKalle Valo rx_tid->ba_win_sz = ba_win_sz; 886d5c65159SKalle Valo 887d5c65159SKalle Valo /* TODO: Optimize the memory allocation for qos tid based on the 888d5c65159SKalle Valo * the actual BA window size in REO tid update path. 889d5c65159SKalle Valo */ 890d5c65159SKalle Valo if (tid == HAL_DESC_REO_NON_QOS_TID) 891d5c65159SKalle Valo hw_desc_sz = ath11k_hal_reo_qdesc_size(ba_win_sz, tid); 892d5c65159SKalle Valo else 893d5c65159SKalle Valo hw_desc_sz = ath11k_hal_reo_qdesc_size(DP_BA_WIN_SZ_MAX, tid); 894d5c65159SKalle Valo 895d5c65159SKalle Valo vaddr = kzalloc(hw_desc_sz + HAL_LINK_DESC_ALIGN - 1, GFP_KERNEL); 896d5c65159SKalle Valo if (!vaddr) { 897d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 898d5c65159SKalle Valo return -ENOMEM; 899d5c65159SKalle Valo } 900d5c65159SKalle Valo 901d5c65159SKalle Valo addr_aligned = PTR_ALIGN(vaddr, HAL_LINK_DESC_ALIGN); 902d5c65159SKalle Valo 9031441b2f2SManikanta Pubbisetty ath11k_hal_reo_qdesc_setup(addr_aligned, tid, ba_win_sz, 9041441b2f2SManikanta Pubbisetty ssn, pn_type); 905d5c65159SKalle Valo 906d5c65159SKalle Valo paddr = dma_map_single(ab->dev, addr_aligned, hw_desc_sz, 907d5c65159SKalle Valo DMA_BIDIRECTIONAL); 908d5c65159SKalle Valo 909d5c65159SKalle Valo ret = dma_mapping_error(ab->dev, paddr); 910d5c65159SKalle Valo if (ret) { 911d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 912d5c65159SKalle Valo goto err_mem_free; 913d5c65159SKalle Valo } 914d5c65159SKalle Valo 915d5c65159SKalle Valo rx_tid->vaddr = vaddr; 916d5c65159SKalle Valo rx_tid->paddr = paddr; 917d5c65159SKalle Valo rx_tid->size = hw_desc_sz; 918d5c65159SKalle Valo rx_tid->active = true; 919d5c65159SKalle Valo 920d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 921d5c65159SKalle Valo 922d5c65159SKalle Valo ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, peer_mac, 923d5c65159SKalle Valo paddr, tid, 1, ba_win_sz); 924d5c65159SKalle Valo if (ret) { 925d5c65159SKalle Valo ath11k_warn(ar->ab, "failed to setup rx reorder queue, tid :%d (%d)\n", 926d5c65159SKalle Valo tid, ret); 927d5c65159SKalle Valo ath11k_dp_rx_tid_mem_free(ab, peer_mac, vdev_id, tid); 928d5c65159SKalle Valo } 929d5c65159SKalle Valo 930d5c65159SKalle Valo return ret; 931d5c65159SKalle Valo 932d5c65159SKalle Valo err_mem_free: 933d5c65159SKalle Valo kfree(vaddr); 934d5c65159SKalle Valo 935d5c65159SKalle Valo return ret; 936d5c65159SKalle Valo } 937d5c65159SKalle Valo 938d5c65159SKalle Valo int ath11k_dp_rx_ampdu_start(struct ath11k *ar, 939d5c65159SKalle Valo struct ieee80211_ampdu_params *params) 940d5c65159SKalle Valo { 941d5c65159SKalle Valo struct ath11k_base *ab = ar->ab; 942d5c65159SKalle Valo struct ath11k_sta *arsta = (void *)params->sta->drv_priv; 943d5c65159SKalle Valo int vdev_id = arsta->arvif->vdev_id; 944d5c65159SKalle Valo int ret; 945d5c65159SKalle Valo 946d5c65159SKalle Valo ret = ath11k_peer_rx_tid_setup(ar, params->sta->addr, vdev_id, 947d5c65159SKalle Valo params->tid, params->buf_size, 9481441b2f2SManikanta Pubbisetty params->ssn, arsta->pn_type); 949d5c65159SKalle Valo if (ret) 950d5c65159SKalle Valo ath11k_warn(ab, "failed to setup rx tid %d\n", ret); 951d5c65159SKalle Valo 952d5c65159SKalle Valo return ret; 953d5c65159SKalle Valo } 954d5c65159SKalle Valo 955d5c65159SKalle Valo int ath11k_dp_rx_ampdu_stop(struct ath11k *ar, 956d5c65159SKalle Valo struct ieee80211_ampdu_params *params) 957d5c65159SKalle Valo { 958d5c65159SKalle Valo struct ath11k_base *ab = ar->ab; 959d5c65159SKalle Valo struct ath11k_peer *peer; 960d5c65159SKalle Valo struct ath11k_sta *arsta = (void *)params->sta->drv_priv; 961d5c65159SKalle Valo int vdev_id = arsta->arvif->vdev_id; 962d5c65159SKalle Valo dma_addr_t paddr; 963d5c65159SKalle Valo bool active; 964d5c65159SKalle Valo int ret; 965d5c65159SKalle Valo 966d5c65159SKalle Valo spin_lock_bh(&ab->base_lock); 967d5c65159SKalle Valo 968d5c65159SKalle Valo peer = ath11k_peer_find(ab, vdev_id, params->sta->addr); 969d5c65159SKalle Valo if (!peer) { 970d5c65159SKalle Valo ath11k_warn(ab, "failed to find the peer to stop rx aggregation\n"); 971d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 972d5c65159SKalle Valo return -ENOENT; 973d5c65159SKalle Valo } 974d5c65159SKalle Valo 975d5c65159SKalle Valo paddr = peer->rx_tid[params->tid].paddr; 976d5c65159SKalle Valo active = peer->rx_tid[params->tid].active; 977d5c65159SKalle Valo 978fe201947SVenkateswara Naralasetty if (!active) { 979d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 980d5c65159SKalle Valo return 0; 981fe201947SVenkateswara Naralasetty } 982fe201947SVenkateswara Naralasetty 983fe201947SVenkateswara Naralasetty ret = ath11k_peer_rx_tid_reo_update(ar, peer, peer->rx_tid, 1, 0, false); 984fe201947SVenkateswara Naralasetty spin_unlock_bh(&ab->base_lock); 985fe201947SVenkateswara Naralasetty if (ret) { 986fe201947SVenkateswara Naralasetty ath11k_warn(ab, "failed to update reo for rx tid %d: %d\n", 987fe201947SVenkateswara Naralasetty params->tid, ret); 988fe201947SVenkateswara Naralasetty return ret; 989fe201947SVenkateswara Naralasetty } 990d5c65159SKalle Valo 991d5c65159SKalle Valo ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, 992d5c65159SKalle Valo params->sta->addr, paddr, 993d5c65159SKalle Valo params->tid, 1, 1); 994d5c65159SKalle Valo if (ret) 995d5c65159SKalle Valo ath11k_warn(ab, "failed to send wmi to delete rx tid %d\n", 996d5c65159SKalle Valo ret); 997d5c65159SKalle Valo 998d5c65159SKalle Valo return ret; 999d5c65159SKalle Valo } 1000d5c65159SKalle Valo 10011441b2f2SManikanta Pubbisetty int ath11k_dp_peer_rx_pn_replay_config(struct ath11k_vif *arvif, 10021441b2f2SManikanta Pubbisetty const u8 *peer_addr, 10031441b2f2SManikanta Pubbisetty enum set_key_cmd key_cmd, 10041441b2f2SManikanta Pubbisetty struct ieee80211_key_conf *key) 10051441b2f2SManikanta Pubbisetty { 10061441b2f2SManikanta Pubbisetty struct ath11k *ar = arvif->ar; 10071441b2f2SManikanta Pubbisetty struct ath11k_base *ab = ar->ab; 10081441b2f2SManikanta Pubbisetty struct ath11k_hal_reo_cmd cmd = {0}; 10091441b2f2SManikanta Pubbisetty struct ath11k_peer *peer; 10101441b2f2SManikanta Pubbisetty struct dp_rx_tid *rx_tid; 10111441b2f2SManikanta Pubbisetty u8 tid; 10121441b2f2SManikanta Pubbisetty int ret = 0; 10131441b2f2SManikanta Pubbisetty 10141441b2f2SManikanta Pubbisetty /* NOTE: Enable PN/TSC replay check offload only for unicast frames. 10151441b2f2SManikanta Pubbisetty * We use mac80211 PN/TSC replay check functionality for bcast/mcast 10161441b2f2SManikanta Pubbisetty * for now. 10171441b2f2SManikanta Pubbisetty */ 10181441b2f2SManikanta Pubbisetty if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) 10191441b2f2SManikanta Pubbisetty return 0; 10201441b2f2SManikanta Pubbisetty 10211441b2f2SManikanta Pubbisetty cmd.flag |= HAL_REO_CMD_FLG_NEED_STATUS; 10221441b2f2SManikanta Pubbisetty cmd.upd0 |= HAL_REO_CMD_UPD0_PN | 10231441b2f2SManikanta Pubbisetty HAL_REO_CMD_UPD0_PN_SIZE | 10241441b2f2SManikanta Pubbisetty HAL_REO_CMD_UPD0_PN_VALID | 10251441b2f2SManikanta Pubbisetty HAL_REO_CMD_UPD0_PN_CHECK | 10261441b2f2SManikanta Pubbisetty HAL_REO_CMD_UPD0_SVLD; 10271441b2f2SManikanta Pubbisetty 10281441b2f2SManikanta Pubbisetty switch (key->cipher) { 10291441b2f2SManikanta Pubbisetty case WLAN_CIPHER_SUITE_TKIP: 10301441b2f2SManikanta Pubbisetty case WLAN_CIPHER_SUITE_CCMP: 10311441b2f2SManikanta Pubbisetty case WLAN_CIPHER_SUITE_CCMP_256: 10321441b2f2SManikanta Pubbisetty case WLAN_CIPHER_SUITE_GCMP: 10331441b2f2SManikanta Pubbisetty case WLAN_CIPHER_SUITE_GCMP_256: 10341441b2f2SManikanta Pubbisetty if (key_cmd == SET_KEY) { 10351441b2f2SManikanta Pubbisetty cmd.upd1 |= HAL_REO_CMD_UPD1_PN_CHECK; 10361441b2f2SManikanta Pubbisetty cmd.pn_size = 48; 10371441b2f2SManikanta Pubbisetty } 10381441b2f2SManikanta Pubbisetty break; 10391441b2f2SManikanta Pubbisetty default: 10401441b2f2SManikanta Pubbisetty break; 10411441b2f2SManikanta Pubbisetty } 10421441b2f2SManikanta Pubbisetty 10431441b2f2SManikanta Pubbisetty spin_lock_bh(&ab->base_lock); 10441441b2f2SManikanta Pubbisetty 10451441b2f2SManikanta Pubbisetty peer = ath11k_peer_find(ab, arvif->vdev_id, peer_addr); 10461441b2f2SManikanta Pubbisetty if (!peer) { 10471441b2f2SManikanta Pubbisetty ath11k_warn(ab, "failed to find the peer to configure pn replay detection\n"); 10481441b2f2SManikanta Pubbisetty spin_unlock_bh(&ab->base_lock); 10491441b2f2SManikanta Pubbisetty return -ENOENT; 10501441b2f2SManikanta Pubbisetty } 10511441b2f2SManikanta Pubbisetty 10521441b2f2SManikanta Pubbisetty for (tid = 0; tid <= IEEE80211_NUM_TIDS; tid++) { 10531441b2f2SManikanta Pubbisetty rx_tid = &peer->rx_tid[tid]; 10541441b2f2SManikanta Pubbisetty if (!rx_tid->active) 10551441b2f2SManikanta Pubbisetty continue; 10561441b2f2SManikanta Pubbisetty cmd.addr_lo = lower_32_bits(rx_tid->paddr); 10571441b2f2SManikanta Pubbisetty cmd.addr_hi = upper_32_bits(rx_tid->paddr); 10581441b2f2SManikanta Pubbisetty ret = ath11k_dp_tx_send_reo_cmd(ab, rx_tid, 10591441b2f2SManikanta Pubbisetty HAL_REO_CMD_UPDATE_RX_QUEUE, 10601441b2f2SManikanta Pubbisetty &cmd, NULL); 10611441b2f2SManikanta Pubbisetty if (ret) { 10621441b2f2SManikanta Pubbisetty ath11k_warn(ab, "failed to configure rx tid %d queue for pn replay detection %d\n", 10631441b2f2SManikanta Pubbisetty tid, ret); 10641441b2f2SManikanta Pubbisetty break; 10651441b2f2SManikanta Pubbisetty } 10661441b2f2SManikanta Pubbisetty } 10671441b2f2SManikanta Pubbisetty 10681441b2f2SManikanta Pubbisetty spin_unlock_bh(&ar->ab->base_lock); 10691441b2f2SManikanta Pubbisetty 10701441b2f2SManikanta Pubbisetty return ret; 10711441b2f2SManikanta Pubbisetty } 10721441b2f2SManikanta Pubbisetty 10731441b2f2SManikanta Pubbisetty static inline int ath11k_get_ppdu_user_index(struct htt_ppdu_stats *ppdu_stats, 1074d5c65159SKalle Valo u16 peer_id) 1075d5c65159SKalle Valo { 1076d5c65159SKalle Valo int i; 1077d5c65159SKalle Valo 1078d5c65159SKalle Valo for (i = 0; i < HTT_PPDU_STATS_MAX_USERS - 1; i++) { 1079d5c65159SKalle Valo if (ppdu_stats->user_stats[i].is_valid_peer_id) { 1080d5c65159SKalle Valo if (peer_id == ppdu_stats->user_stats[i].peer_id) 1081d5c65159SKalle Valo return i; 1082d5c65159SKalle Valo } else { 1083d5c65159SKalle Valo return i; 1084d5c65159SKalle Valo } 1085d5c65159SKalle Valo } 1086d5c65159SKalle Valo 1087d5c65159SKalle Valo return -EINVAL; 1088d5c65159SKalle Valo } 1089d5c65159SKalle Valo 1090d5c65159SKalle Valo static int ath11k_htt_tlv_ppdu_stats_parse(struct ath11k_base *ab, 1091d5c65159SKalle Valo u16 tag, u16 len, const void *ptr, 1092d5c65159SKalle Valo void *data) 1093d5c65159SKalle Valo { 1094d5c65159SKalle Valo struct htt_ppdu_stats_info *ppdu_info; 1095d5c65159SKalle Valo struct htt_ppdu_user_stats *user_stats; 1096d5c65159SKalle Valo int cur_user; 1097d5c65159SKalle Valo u16 peer_id; 1098d5c65159SKalle Valo 1099d5c65159SKalle Valo ppdu_info = (struct htt_ppdu_stats_info *)data; 1100d5c65159SKalle Valo 1101d5c65159SKalle Valo switch (tag) { 1102d5c65159SKalle Valo case HTT_PPDU_STATS_TAG_COMMON: 1103d5c65159SKalle Valo if (len < sizeof(struct htt_ppdu_stats_common)) { 1104d5c65159SKalle Valo ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", 1105d5c65159SKalle Valo len, tag); 1106d5c65159SKalle Valo return -EINVAL; 1107d5c65159SKalle Valo } 1108d5c65159SKalle Valo memcpy((void *)&ppdu_info->ppdu_stats.common, ptr, 1109d5c65159SKalle Valo sizeof(struct htt_ppdu_stats_common)); 1110d5c65159SKalle Valo break; 1111d5c65159SKalle Valo case HTT_PPDU_STATS_TAG_USR_RATE: 1112d5c65159SKalle Valo if (len < sizeof(struct htt_ppdu_stats_user_rate)) { 1113d5c65159SKalle Valo ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", 1114d5c65159SKalle Valo len, tag); 1115d5c65159SKalle Valo return -EINVAL; 1116d5c65159SKalle Valo } 1117d5c65159SKalle Valo 1118d5c65159SKalle Valo peer_id = ((struct htt_ppdu_stats_user_rate *)ptr)->sw_peer_id; 1119d5c65159SKalle Valo cur_user = ath11k_get_ppdu_user_index(&ppdu_info->ppdu_stats, 1120d5c65159SKalle Valo peer_id); 1121d5c65159SKalle Valo if (cur_user < 0) 1122d5c65159SKalle Valo return -EINVAL; 1123d5c65159SKalle Valo user_stats = &ppdu_info->ppdu_stats.user_stats[cur_user]; 1124d5c65159SKalle Valo user_stats->peer_id = peer_id; 1125d5c65159SKalle Valo user_stats->is_valid_peer_id = true; 1126d5c65159SKalle Valo memcpy((void *)&user_stats->rate, ptr, 1127d5c65159SKalle Valo sizeof(struct htt_ppdu_stats_user_rate)); 1128d5c65159SKalle Valo user_stats->tlv_flags |= BIT(tag); 1129d5c65159SKalle Valo break; 1130d5c65159SKalle Valo case HTT_PPDU_STATS_TAG_USR_COMPLTN_COMMON: 1131d5c65159SKalle Valo if (len < sizeof(struct htt_ppdu_stats_usr_cmpltn_cmn)) { 1132d5c65159SKalle Valo ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", 1133d5c65159SKalle Valo len, tag); 1134d5c65159SKalle Valo return -EINVAL; 1135d5c65159SKalle Valo } 1136d5c65159SKalle Valo 1137d5c65159SKalle Valo peer_id = ((struct htt_ppdu_stats_usr_cmpltn_cmn *)ptr)->sw_peer_id; 1138d5c65159SKalle Valo cur_user = ath11k_get_ppdu_user_index(&ppdu_info->ppdu_stats, 1139d5c65159SKalle Valo peer_id); 1140d5c65159SKalle Valo if (cur_user < 0) 1141d5c65159SKalle Valo return -EINVAL; 1142d5c65159SKalle Valo user_stats = &ppdu_info->ppdu_stats.user_stats[cur_user]; 1143d5c65159SKalle Valo user_stats->peer_id = peer_id; 1144d5c65159SKalle Valo user_stats->is_valid_peer_id = true; 1145d5c65159SKalle Valo memcpy((void *)&user_stats->cmpltn_cmn, ptr, 1146d5c65159SKalle Valo sizeof(struct htt_ppdu_stats_usr_cmpltn_cmn)); 1147d5c65159SKalle Valo user_stats->tlv_flags |= BIT(tag); 1148d5c65159SKalle Valo break; 1149d5c65159SKalle Valo case HTT_PPDU_STATS_TAG_USR_COMPLTN_ACK_BA_STATUS: 1150d5c65159SKalle Valo if (len < 1151d5c65159SKalle Valo sizeof(struct htt_ppdu_stats_usr_cmpltn_ack_ba_status)) { 1152d5c65159SKalle Valo ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", 1153d5c65159SKalle Valo len, tag); 1154d5c65159SKalle Valo return -EINVAL; 1155d5c65159SKalle Valo } 1156d5c65159SKalle Valo 1157d5c65159SKalle Valo peer_id = 1158d5c65159SKalle Valo ((struct htt_ppdu_stats_usr_cmpltn_ack_ba_status *)ptr)->sw_peer_id; 1159d5c65159SKalle Valo cur_user = ath11k_get_ppdu_user_index(&ppdu_info->ppdu_stats, 1160d5c65159SKalle Valo peer_id); 1161d5c65159SKalle Valo if (cur_user < 0) 1162d5c65159SKalle Valo return -EINVAL; 1163d5c65159SKalle Valo user_stats = &ppdu_info->ppdu_stats.user_stats[cur_user]; 1164d5c65159SKalle Valo user_stats->peer_id = peer_id; 1165d5c65159SKalle Valo user_stats->is_valid_peer_id = true; 1166d5c65159SKalle Valo memcpy((void *)&user_stats->ack_ba, ptr, 1167d5c65159SKalle Valo sizeof(struct htt_ppdu_stats_usr_cmpltn_ack_ba_status)); 1168d5c65159SKalle Valo user_stats->tlv_flags |= BIT(tag); 1169d5c65159SKalle Valo break; 1170d5c65159SKalle Valo } 1171d5c65159SKalle Valo return 0; 1172d5c65159SKalle Valo } 1173d5c65159SKalle Valo 1174d5c65159SKalle Valo int ath11k_dp_htt_tlv_iter(struct ath11k_base *ab, const void *ptr, size_t len, 1175d5c65159SKalle Valo int (*iter)(struct ath11k_base *ar, u16 tag, u16 len, 1176d5c65159SKalle Valo const void *ptr, void *data), 1177d5c65159SKalle Valo void *data) 1178d5c65159SKalle Valo { 1179d5c65159SKalle Valo const struct htt_tlv *tlv; 1180d5c65159SKalle Valo const void *begin = ptr; 1181d5c65159SKalle Valo u16 tlv_tag, tlv_len; 1182d5c65159SKalle Valo int ret = -EINVAL; 1183d5c65159SKalle Valo 1184d5c65159SKalle Valo while (len > 0) { 1185d5c65159SKalle Valo if (len < sizeof(*tlv)) { 1186d5c65159SKalle Valo ath11k_err(ab, "htt tlv parse failure at byte %zd (%zu bytes left, %zu expected)\n", 1187d5c65159SKalle Valo ptr - begin, len, sizeof(*tlv)); 1188d5c65159SKalle Valo return -EINVAL; 1189d5c65159SKalle Valo } 1190d5c65159SKalle Valo tlv = (struct htt_tlv *)ptr; 1191d5c65159SKalle Valo tlv_tag = FIELD_GET(HTT_TLV_TAG, tlv->header); 1192d5c65159SKalle Valo tlv_len = FIELD_GET(HTT_TLV_LEN, tlv->header); 1193d5c65159SKalle Valo ptr += sizeof(*tlv); 1194d5c65159SKalle Valo len -= sizeof(*tlv); 1195d5c65159SKalle Valo 1196d5c65159SKalle Valo if (tlv_len > len) { 1197d5c65159SKalle Valo ath11k_err(ab, "htt tlv parse failure of tag %hhu at byte %zd (%zu bytes left, %hhu expected)\n", 1198d5c65159SKalle Valo tlv_tag, ptr - begin, len, tlv_len); 1199d5c65159SKalle Valo return -EINVAL; 1200d5c65159SKalle Valo } 1201d5c65159SKalle Valo ret = iter(ab, tlv_tag, tlv_len, ptr, data); 1202d5c65159SKalle Valo if (ret == -ENOMEM) 1203d5c65159SKalle Valo return ret; 1204d5c65159SKalle Valo 1205d5c65159SKalle Valo ptr += tlv_len; 1206d5c65159SKalle Valo len -= tlv_len; 1207d5c65159SKalle Valo } 1208d5c65159SKalle Valo return 0; 1209d5c65159SKalle Valo } 1210d5c65159SKalle Valo 12116a0c3702SJohn Crispin static inline u32 ath11k_he_gi_to_nl80211_he_gi(u8 sgi) 12126a0c3702SJohn Crispin { 12136a0c3702SJohn Crispin u32 ret = 0; 12146a0c3702SJohn Crispin 12156a0c3702SJohn Crispin switch (sgi) { 12166a0c3702SJohn Crispin case RX_MSDU_START_SGI_0_8_US: 12176a0c3702SJohn Crispin ret = NL80211_RATE_INFO_HE_GI_0_8; 12186a0c3702SJohn Crispin break; 12196a0c3702SJohn Crispin case RX_MSDU_START_SGI_1_6_US: 12206a0c3702SJohn Crispin ret = NL80211_RATE_INFO_HE_GI_1_6; 12216a0c3702SJohn Crispin break; 12226a0c3702SJohn Crispin case RX_MSDU_START_SGI_3_2_US: 12236a0c3702SJohn Crispin ret = NL80211_RATE_INFO_HE_GI_3_2; 12246a0c3702SJohn Crispin break; 12256a0c3702SJohn Crispin } 12266a0c3702SJohn Crispin 12276a0c3702SJohn Crispin return ret; 12286a0c3702SJohn Crispin } 12296a0c3702SJohn Crispin 1230d5c65159SKalle Valo static void 1231d5c65159SKalle Valo ath11k_update_per_peer_tx_stats(struct ath11k *ar, 1232d5c65159SKalle Valo struct htt_ppdu_stats *ppdu_stats, u8 user) 1233d5c65159SKalle Valo { 1234d5c65159SKalle Valo struct ath11k_base *ab = ar->ab; 1235d5c65159SKalle Valo struct ath11k_peer *peer; 1236d5c65159SKalle Valo struct ieee80211_sta *sta; 1237d5c65159SKalle Valo struct ath11k_sta *arsta; 1238d5c65159SKalle Valo struct htt_ppdu_stats_user_rate *user_rate; 1239d5c65159SKalle Valo struct ath11k_per_peer_tx_stats *peer_stats = &ar->peer_tx_stats; 1240d5c65159SKalle Valo struct htt_ppdu_user_stats *usr_stats = &ppdu_stats->user_stats[user]; 1241d5c65159SKalle Valo struct htt_ppdu_stats_common *common = &ppdu_stats->common; 1242d5c65159SKalle Valo int ret; 12436a0c3702SJohn Crispin u8 flags, mcs, nss, bw, sgi, dcm, rate_idx = 0; 1244d5c65159SKalle Valo u32 succ_bytes = 0; 1245d5c65159SKalle Valo u16 rate = 0, succ_pkts = 0; 1246d5c65159SKalle Valo u32 tx_duration = 0; 1247b9269a07SVenkateswara Naralasetty u8 tid = HTT_PPDU_STATS_NON_QOS_TID; 1248d5c65159SKalle Valo bool is_ampdu = false; 1249d5c65159SKalle Valo 1250d5c65159SKalle Valo if (!usr_stats) 1251d5c65159SKalle Valo return; 1252d5c65159SKalle Valo 1253d5c65159SKalle Valo if (!(usr_stats->tlv_flags & BIT(HTT_PPDU_STATS_TAG_USR_RATE))) 1254d5c65159SKalle Valo return; 1255d5c65159SKalle Valo 1256d5c65159SKalle Valo if (usr_stats->tlv_flags & BIT(HTT_PPDU_STATS_TAG_USR_COMPLTN_COMMON)) 1257d5c65159SKalle Valo is_ampdu = 1258d5c65159SKalle Valo HTT_USR_CMPLTN_IS_AMPDU(usr_stats->cmpltn_cmn.flags); 1259d5c65159SKalle Valo 1260d5c65159SKalle Valo if (usr_stats->tlv_flags & 1261d5c65159SKalle Valo BIT(HTT_PPDU_STATS_TAG_USR_COMPLTN_ACK_BA_STATUS)) { 1262d5c65159SKalle Valo succ_bytes = usr_stats->ack_ba.success_bytes; 1263d5c65159SKalle Valo succ_pkts = FIELD_GET(HTT_PPDU_STATS_ACK_BA_INFO_NUM_MSDU_M, 1264d5c65159SKalle Valo usr_stats->ack_ba.info); 1265b9269a07SVenkateswara Naralasetty tid = FIELD_GET(HTT_PPDU_STATS_ACK_BA_INFO_TID_NUM, 1266b9269a07SVenkateswara Naralasetty usr_stats->ack_ba.info); 1267d5c65159SKalle Valo } 1268d5c65159SKalle Valo 1269d5c65159SKalle Valo if (common->fes_duration_us) 1270d5c65159SKalle Valo tx_duration = common->fes_duration_us; 1271d5c65159SKalle Valo 1272d5c65159SKalle Valo user_rate = &usr_stats->rate; 1273d5c65159SKalle Valo flags = HTT_USR_RATE_PREAMBLE(user_rate->rate_flags); 1274d5c65159SKalle Valo bw = HTT_USR_RATE_BW(user_rate->rate_flags) - 2; 1275d5c65159SKalle Valo nss = HTT_USR_RATE_NSS(user_rate->rate_flags) + 1; 1276d5c65159SKalle Valo mcs = HTT_USR_RATE_MCS(user_rate->rate_flags); 1277d5c65159SKalle Valo sgi = HTT_USR_RATE_GI(user_rate->rate_flags); 12786a0c3702SJohn Crispin dcm = HTT_USR_RATE_DCM(user_rate->rate_flags); 1279d5c65159SKalle Valo 1280d5c65159SKalle Valo /* Note: If host configured fixed rates and in some other special 1281d5c65159SKalle Valo * cases, the broadcast/management frames are sent in different rates. 1282d5c65159SKalle Valo * Firmware rate's control to be skipped for this? 1283d5c65159SKalle Valo */ 1284d5c65159SKalle Valo 12856a0c3702SJohn Crispin if (flags == WMI_RATE_PREAMBLE_HE && mcs > 11) { 12866a0c3702SJohn Crispin ath11k_warn(ab, "Invalid HE mcs %hhd peer stats", mcs); 12876a0c3702SJohn Crispin return; 12886a0c3702SJohn Crispin } 12896a0c3702SJohn Crispin 12906a0c3702SJohn Crispin if (flags == WMI_RATE_PREAMBLE_HE && mcs > ATH11K_HE_MCS_MAX) { 12916a0c3702SJohn Crispin ath11k_warn(ab, "Invalid HE mcs %hhd peer stats", mcs); 12926a0c3702SJohn Crispin return; 12936a0c3702SJohn Crispin } 12946a0c3702SJohn Crispin 12956a0c3702SJohn Crispin if (flags == WMI_RATE_PREAMBLE_VHT && mcs > ATH11K_VHT_MCS_MAX) { 1296d5c65159SKalle Valo ath11k_warn(ab, "Invalid VHT mcs %hhd peer stats", mcs); 1297d5c65159SKalle Valo return; 1298d5c65159SKalle Valo } 1299d5c65159SKalle Valo 13006a0c3702SJohn Crispin if (flags == WMI_RATE_PREAMBLE_HT && (mcs > ATH11K_HT_MCS_MAX || nss < 1)) { 1301d5c65159SKalle Valo ath11k_warn(ab, "Invalid HT mcs %hhd nss %hhd peer stats", 1302d5c65159SKalle Valo mcs, nss); 1303d5c65159SKalle Valo return; 1304d5c65159SKalle Valo } 1305d5c65159SKalle Valo 1306d5c65159SKalle Valo if (flags == WMI_RATE_PREAMBLE_CCK || flags == WMI_RATE_PREAMBLE_OFDM) { 1307d5c65159SKalle Valo ret = ath11k_mac_hw_ratecode_to_legacy_rate(mcs, 1308d5c65159SKalle Valo flags, 1309d5c65159SKalle Valo &rate_idx, 1310d5c65159SKalle Valo &rate); 1311d5c65159SKalle Valo if (ret < 0) 1312d5c65159SKalle Valo return; 1313d5c65159SKalle Valo } 1314d5c65159SKalle Valo 1315d5c65159SKalle Valo rcu_read_lock(); 1316d5c65159SKalle Valo spin_lock_bh(&ab->base_lock); 1317d5c65159SKalle Valo peer = ath11k_peer_find_by_id(ab, usr_stats->peer_id); 1318d5c65159SKalle Valo 1319d5c65159SKalle Valo if (!peer || !peer->sta) { 1320d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 1321d5c65159SKalle Valo rcu_read_unlock(); 1322d5c65159SKalle Valo return; 1323d5c65159SKalle Valo } 1324d5c65159SKalle Valo 1325d5c65159SKalle Valo sta = peer->sta; 1326d5c65159SKalle Valo arsta = (struct ath11k_sta *)sta->drv_priv; 1327d5c65159SKalle Valo 1328d5c65159SKalle Valo memset(&arsta->txrate, 0, sizeof(arsta->txrate)); 1329d5c65159SKalle Valo 1330d5c65159SKalle Valo switch (flags) { 1331d5c65159SKalle Valo case WMI_RATE_PREAMBLE_OFDM: 1332d5c65159SKalle Valo arsta->txrate.legacy = rate; 1333d5c65159SKalle Valo break; 1334d5c65159SKalle Valo case WMI_RATE_PREAMBLE_CCK: 1335d5c65159SKalle Valo arsta->txrate.legacy = rate; 1336d5c65159SKalle Valo break; 1337d5c65159SKalle Valo case WMI_RATE_PREAMBLE_HT: 1338d5c65159SKalle Valo arsta->txrate.mcs = mcs + 8 * (nss - 1); 1339d5c65159SKalle Valo arsta->txrate.flags = RATE_INFO_FLAGS_MCS; 1340be43ce64SJohn Crispin if (sgi) 1341d5c65159SKalle Valo arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1342d5c65159SKalle Valo break; 1343d5c65159SKalle Valo case WMI_RATE_PREAMBLE_VHT: 1344d5c65159SKalle Valo arsta->txrate.mcs = mcs; 1345d5c65159SKalle Valo arsta->txrate.flags = RATE_INFO_FLAGS_VHT_MCS; 1346be43ce64SJohn Crispin if (sgi) 1347d5c65159SKalle Valo arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1348d5c65159SKalle Valo break; 13496a0c3702SJohn Crispin case WMI_RATE_PREAMBLE_HE: 13506a0c3702SJohn Crispin arsta->txrate.mcs = mcs; 13516a0c3702SJohn Crispin arsta->txrate.flags = RATE_INFO_FLAGS_HE_MCS; 13526a0c3702SJohn Crispin arsta->txrate.he_dcm = dcm; 13536a0c3702SJohn Crispin arsta->txrate.he_gi = ath11k_he_gi_to_nl80211_he_gi(sgi); 13546a0c3702SJohn Crispin arsta->txrate.he_ru_alloc = ath11k_he_ru_tones_to_nl80211_he_ru_alloc( 13556a0c3702SJohn Crispin (user_rate->ru_end - 13566a0c3702SJohn Crispin user_rate->ru_start) + 1); 13576a0c3702SJohn Crispin break; 1358d5c65159SKalle Valo } 1359d5c65159SKalle Valo 1360d5c65159SKalle Valo arsta->txrate.nss = nss; 136139e81c6aSTamizh chelvam arsta->txrate.bw = ath11k_mac_bw_to_mac80211_bw(bw); 1362a9e945eaSVenkateswara Naralasetty arsta->tx_duration += tx_duration; 1363d5c65159SKalle Valo memcpy(&arsta->last_txrate, &arsta->txrate, sizeof(struct rate_info)); 1364d5c65159SKalle Valo 1365b9269a07SVenkateswara Naralasetty /* PPDU stats reported for mgmt packet doesn't have valid tx bytes. 1366b9269a07SVenkateswara Naralasetty * So skip peer stats update for mgmt packets. 1367b9269a07SVenkateswara Naralasetty */ 1368b9269a07SVenkateswara Naralasetty if (tid < HTT_PPDU_STATS_NON_QOS_TID) { 1369d5c65159SKalle Valo memset(peer_stats, 0, sizeof(*peer_stats)); 1370d5c65159SKalle Valo peer_stats->succ_pkts = succ_pkts; 1371d5c65159SKalle Valo peer_stats->succ_bytes = succ_bytes; 1372d5c65159SKalle Valo peer_stats->is_ampdu = is_ampdu; 1373d5c65159SKalle Valo peer_stats->duration = tx_duration; 1374d5c65159SKalle Valo peer_stats->ba_fails = 1375d5c65159SKalle Valo HTT_USR_CMPLTN_LONG_RETRY(usr_stats->cmpltn_cmn.flags) + 1376d5c65159SKalle Valo HTT_USR_CMPLTN_SHORT_RETRY(usr_stats->cmpltn_cmn.flags); 1377d5c65159SKalle Valo 1378d5c65159SKalle Valo if (ath11k_debug_is_extd_tx_stats_enabled(ar)) 1379d5c65159SKalle Valo ath11k_accumulate_per_peer_tx_stats(arsta, 1380d5c65159SKalle Valo peer_stats, rate_idx); 1381b9269a07SVenkateswara Naralasetty } 1382d5c65159SKalle Valo 1383d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 1384d5c65159SKalle Valo rcu_read_unlock(); 1385d5c65159SKalle Valo } 1386d5c65159SKalle Valo 1387d5c65159SKalle Valo static void ath11k_htt_update_ppdu_stats(struct ath11k *ar, 1388d5c65159SKalle Valo struct htt_ppdu_stats *ppdu_stats) 1389d5c65159SKalle Valo { 1390d5c65159SKalle Valo u8 user; 1391d5c65159SKalle Valo 1392d5c65159SKalle Valo for (user = 0; user < HTT_PPDU_STATS_MAX_USERS - 1; user++) 1393d5c65159SKalle Valo ath11k_update_per_peer_tx_stats(ar, ppdu_stats, user); 1394d5c65159SKalle Valo } 1395d5c65159SKalle Valo 1396d5c65159SKalle Valo static 1397d5c65159SKalle Valo struct htt_ppdu_stats_info *ath11k_dp_htt_get_ppdu_desc(struct ath11k *ar, 1398d5c65159SKalle Valo u32 ppdu_id) 1399d5c65159SKalle Valo { 1400269663f1SDan Carpenter struct htt_ppdu_stats_info *ppdu_info; 1401d5c65159SKalle Valo 1402d5c65159SKalle Valo spin_lock_bh(&ar->data_lock); 1403d5c65159SKalle Valo if (!list_empty(&ar->ppdu_stats_info)) { 1404d5c65159SKalle Valo list_for_each_entry(ppdu_info, &ar->ppdu_stats_info, list) { 1405269663f1SDan Carpenter if (ppdu_info->ppdu_id == ppdu_id) { 1406d5c65159SKalle Valo spin_unlock_bh(&ar->data_lock); 1407d5c65159SKalle Valo return ppdu_info; 1408d5c65159SKalle Valo } 1409d5c65159SKalle Valo } 1410d5c65159SKalle Valo 1411d5c65159SKalle Valo if (ar->ppdu_stat_list_depth > HTT_PPDU_DESC_MAX_DEPTH) { 1412d5c65159SKalle Valo ppdu_info = list_first_entry(&ar->ppdu_stats_info, 1413d5c65159SKalle Valo typeof(*ppdu_info), list); 1414d5c65159SKalle Valo list_del(&ppdu_info->list); 1415d5c65159SKalle Valo ar->ppdu_stat_list_depth--; 1416d5c65159SKalle Valo ath11k_htt_update_ppdu_stats(ar, &ppdu_info->ppdu_stats); 1417d5c65159SKalle Valo kfree(ppdu_info); 1418d5c65159SKalle Valo } 1419d5c65159SKalle Valo } 1420d5c65159SKalle Valo spin_unlock_bh(&ar->data_lock); 1421d5c65159SKalle Valo 1422d5c65159SKalle Valo ppdu_info = kzalloc(sizeof(*ppdu_info), GFP_KERNEL); 1423d5c65159SKalle Valo if (!ppdu_info) 1424d5c65159SKalle Valo return NULL; 1425d5c65159SKalle Valo 1426d5c65159SKalle Valo spin_lock_bh(&ar->data_lock); 1427d5c65159SKalle Valo list_add_tail(&ppdu_info->list, &ar->ppdu_stats_info); 1428d5c65159SKalle Valo ar->ppdu_stat_list_depth++; 1429d5c65159SKalle Valo spin_unlock_bh(&ar->data_lock); 1430d5c65159SKalle Valo 1431d5c65159SKalle Valo return ppdu_info; 1432d5c65159SKalle Valo } 1433d5c65159SKalle Valo 1434d5c65159SKalle Valo static int ath11k_htt_pull_ppdu_stats(struct ath11k_base *ab, 1435d5c65159SKalle Valo struct sk_buff *skb) 1436d5c65159SKalle Valo { 1437d5c65159SKalle Valo struct ath11k_htt_ppdu_stats_msg *msg; 1438d5c65159SKalle Valo struct htt_ppdu_stats_info *ppdu_info; 1439d5c65159SKalle Valo struct ath11k *ar; 1440d5c65159SKalle Valo int ret; 1441d5c65159SKalle Valo u8 pdev_id; 1442d5c65159SKalle Valo u32 ppdu_id, len; 1443d5c65159SKalle Valo 1444d5c65159SKalle Valo msg = (struct ath11k_htt_ppdu_stats_msg *)skb->data; 1445d5c65159SKalle Valo len = FIELD_GET(HTT_T2H_PPDU_STATS_INFO_PAYLOAD_SIZE, msg->info); 1446d5c65159SKalle Valo pdev_id = FIELD_GET(HTT_T2H_PPDU_STATS_INFO_PDEV_ID, msg->info); 1447d5c65159SKalle Valo ppdu_id = msg->ppdu_id; 1448d5c65159SKalle Valo 1449d5c65159SKalle Valo rcu_read_lock(); 1450d5c65159SKalle Valo ar = ath11k_mac_get_ar_by_pdev_id(ab, pdev_id); 1451d5c65159SKalle Valo if (!ar) { 1452d5c65159SKalle Valo ret = -EINVAL; 1453d5c65159SKalle Valo goto exit; 1454d5c65159SKalle Valo } 1455d5c65159SKalle Valo 1456d5c65159SKalle Valo if (ath11k_debug_is_pktlog_lite_mode_enabled(ar)) 1457d5c65159SKalle Valo trace_ath11k_htt_ppdu_stats(ar, skb->data, len); 1458d5c65159SKalle Valo 1459d5c65159SKalle Valo ppdu_info = ath11k_dp_htt_get_ppdu_desc(ar, ppdu_id); 1460d5c65159SKalle Valo if (!ppdu_info) { 1461d5c65159SKalle Valo ret = -EINVAL; 1462d5c65159SKalle Valo goto exit; 1463d5c65159SKalle Valo } 1464d5c65159SKalle Valo 1465d5c65159SKalle Valo ppdu_info->ppdu_id = ppdu_id; 1466d5c65159SKalle Valo ret = ath11k_dp_htt_tlv_iter(ab, msg->data, len, 1467d5c65159SKalle Valo ath11k_htt_tlv_ppdu_stats_parse, 1468d5c65159SKalle Valo (void *)ppdu_info); 1469d5c65159SKalle Valo if (ret) { 1470d5c65159SKalle Valo ath11k_warn(ab, "Failed to parse tlv %d\n", ret); 1471d5c65159SKalle Valo goto exit; 1472d5c65159SKalle Valo } 1473d5c65159SKalle Valo 1474d5c65159SKalle Valo exit: 1475d5c65159SKalle Valo rcu_read_unlock(); 1476d5c65159SKalle Valo 1477d5c65159SKalle Valo return ret; 1478d5c65159SKalle Valo } 1479d5c65159SKalle Valo 1480d5c65159SKalle Valo static void ath11k_htt_pktlog(struct ath11k_base *ab, struct sk_buff *skb) 1481d5c65159SKalle Valo { 1482d5c65159SKalle Valo struct htt_pktlog_msg *data = (struct htt_pktlog_msg *)skb->data; 1483443d2ee7SAnilkumar Kolli struct ath_pktlog_hdr *hdr = (struct ath_pktlog_hdr *)data; 1484d5c65159SKalle Valo struct ath11k *ar; 1485d5c65159SKalle Valo u8 pdev_id; 1486d5c65159SKalle Valo 1487d5c65159SKalle Valo pdev_id = FIELD_GET(HTT_T2H_PPDU_STATS_INFO_PDEV_ID, data->hdr); 1488d0f390eaSAnilkumar Kolli ar = ath11k_mac_get_ar_by_pdev_id(ab, pdev_id); 1489d0f390eaSAnilkumar Kolli if (!ar) { 1490d0f390eaSAnilkumar Kolli ath11k_warn(ab, "invalid pdev id %d on htt pktlog\n", pdev_id); 1491d0f390eaSAnilkumar Kolli return; 1492d0f390eaSAnilkumar Kolli } 1493d5c65159SKalle Valo 149421c1b063SMaharaja Kennadyrajan trace_ath11k_htt_pktlog(ar, data->payload, hdr->size, 149521c1b063SMaharaja Kennadyrajan ar->ab->pktlog_defs_checksum); 1496d5c65159SKalle Valo } 1497d5c65159SKalle Valo 1498678e8414SSriram R static void ath11k_htt_backpressure_event_handler(struct ath11k_base *ab, 1499678e8414SSriram R struct sk_buff *skb) 1500678e8414SSriram R { 1501678e8414SSriram R u32 *data = (u32 *)skb->data; 1502678e8414SSriram R u8 pdev_id, ring_type, ring_id; 1503678e8414SSriram R u16 hp, tp; 1504678e8414SSriram R u32 backpressure_time; 1505678e8414SSriram R 1506678e8414SSriram R pdev_id = FIELD_GET(HTT_BACKPRESSURE_EVENT_PDEV_ID_M, *data); 1507678e8414SSriram R ring_type = FIELD_GET(HTT_BACKPRESSURE_EVENT_RING_TYPE_M, *data); 1508678e8414SSriram R ring_id = FIELD_GET(HTT_BACKPRESSURE_EVENT_RING_ID_M, *data); 1509678e8414SSriram R ++data; 1510678e8414SSriram R 1511678e8414SSriram R hp = FIELD_GET(HTT_BACKPRESSURE_EVENT_HP_M, *data); 1512678e8414SSriram R tp = FIELD_GET(HTT_BACKPRESSURE_EVENT_TP_M, *data); 1513678e8414SSriram R ++data; 1514678e8414SSriram R 1515678e8414SSriram R backpressure_time = *data; 1516678e8414SSriram R 1517678e8414SSriram R ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "htt backpressure event, pdev %d, ring type %d,ring id %d, hp %d tp %d, backpressure time %d\n", 1518678e8414SSriram R pdev_id, ring_type, ring_id, hp, tp, backpressure_time); 1519678e8414SSriram R } 1520678e8414SSriram R 1521d5c65159SKalle Valo void ath11k_dp_htt_htc_t2h_msg_handler(struct ath11k_base *ab, 1522d5c65159SKalle Valo struct sk_buff *skb) 1523d5c65159SKalle Valo { 1524d5c65159SKalle Valo struct ath11k_dp *dp = &ab->dp; 1525d5c65159SKalle Valo struct htt_resp_msg *resp = (struct htt_resp_msg *)skb->data; 1526d5c65159SKalle Valo enum htt_t2h_msg_type type = FIELD_GET(HTT_T2H_MSG_TYPE, *(u32 *)resp); 1527d5c65159SKalle Valo u16 peer_id; 1528d5c65159SKalle Valo u8 vdev_id; 1529d5c65159SKalle Valo u8 mac_addr[ETH_ALEN]; 1530d5c65159SKalle Valo u16 peer_mac_h16; 1531d5c65159SKalle Valo u16 ast_hash; 1532d5c65159SKalle Valo 1533d5c65159SKalle Valo ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "dp_htt rx msg type :0x%0x\n", type); 1534d5c65159SKalle Valo 1535d5c65159SKalle Valo switch (type) { 1536d5c65159SKalle Valo case HTT_T2H_MSG_TYPE_VERSION_CONF: 1537d5c65159SKalle Valo dp->htt_tgt_ver_major = FIELD_GET(HTT_T2H_VERSION_CONF_MAJOR, 1538d5c65159SKalle Valo resp->version_msg.version); 1539d5c65159SKalle Valo dp->htt_tgt_ver_minor = FIELD_GET(HTT_T2H_VERSION_CONF_MINOR, 1540d5c65159SKalle Valo resp->version_msg.version); 1541d5c65159SKalle Valo complete(&dp->htt_tgt_version_received); 1542d5c65159SKalle Valo break; 1543d5c65159SKalle Valo case HTT_T2H_MSG_TYPE_PEER_MAP: 1544d5c65159SKalle Valo vdev_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO_VDEV_ID, 1545d5c65159SKalle Valo resp->peer_map_ev.info); 1546d5c65159SKalle Valo peer_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO_PEER_ID, 1547d5c65159SKalle Valo resp->peer_map_ev.info); 1548d5c65159SKalle Valo peer_mac_h16 = FIELD_GET(HTT_T2H_PEER_MAP_INFO1_MAC_ADDR_H16, 1549d5c65159SKalle Valo resp->peer_map_ev.info1); 1550d5c65159SKalle Valo ath11k_dp_get_mac_addr(resp->peer_map_ev.mac_addr_l32, 1551d5c65159SKalle Valo peer_mac_h16, mac_addr); 1552d5c65159SKalle Valo ast_hash = FIELD_GET(HTT_T2H_PEER_MAP_INFO2_AST_HASH_VAL, 15530f37fbf4SAnilkumar Kolli resp->peer_map_ev.info2); 1554d5c65159SKalle Valo ath11k_peer_map_event(ab, vdev_id, peer_id, mac_addr, ast_hash); 1555d5c65159SKalle Valo break; 1556d5c65159SKalle Valo case HTT_T2H_MSG_TYPE_PEER_UNMAP: 1557d5c65159SKalle Valo peer_id = FIELD_GET(HTT_T2H_PEER_UNMAP_INFO_PEER_ID, 1558d5c65159SKalle Valo resp->peer_unmap_ev.info); 1559d5c65159SKalle Valo ath11k_peer_unmap_event(ab, peer_id); 1560d5c65159SKalle Valo break; 1561d5c65159SKalle Valo case HTT_T2H_MSG_TYPE_PPDU_STATS_IND: 1562d5c65159SKalle Valo ath11k_htt_pull_ppdu_stats(ab, skb); 1563d5c65159SKalle Valo break; 1564d5c65159SKalle Valo case HTT_T2H_MSG_TYPE_EXT_STATS_CONF: 1565d5c65159SKalle Valo ath11k_dbg_htt_ext_stats_handler(ab, skb); 1566d5c65159SKalle Valo break; 1567d5c65159SKalle Valo case HTT_T2H_MSG_TYPE_PKTLOG: 1568d5c65159SKalle Valo ath11k_htt_pktlog(ab, skb); 1569d5c65159SKalle Valo break; 1570678e8414SSriram R case HTT_T2H_MSG_TYPE_BKPRESSURE_EVENT_IND: 1571678e8414SSriram R ath11k_htt_backpressure_event_handler(ab, skb); 1572678e8414SSriram R break; 1573d5c65159SKalle Valo default: 1574d5c65159SKalle Valo ath11k_warn(ab, "htt event %d not handled\n", type); 1575d5c65159SKalle Valo break; 1576d5c65159SKalle Valo } 1577d5c65159SKalle Valo 1578d5c65159SKalle Valo dev_kfree_skb_any(skb); 1579d5c65159SKalle Valo } 1580d5c65159SKalle Valo 1581d5c65159SKalle Valo static int ath11k_dp_rx_msdu_coalesce(struct ath11k *ar, 1582d5c65159SKalle Valo struct sk_buff_head *msdu_list, 1583d5c65159SKalle Valo struct sk_buff *first, struct sk_buff *last, 1584d5c65159SKalle Valo u8 l3pad_bytes, int msdu_len) 1585d5c65159SKalle Valo { 1586d5c65159SKalle Valo struct sk_buff *skb; 1587d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(first); 1588d2f510faSSriram R int buf_first_hdr_len, buf_first_len; 1589d5c65159SKalle Valo struct hal_rx_desc *ldesc; 1590d5c65159SKalle Valo int space_extra; 1591d5c65159SKalle Valo int rem_len; 1592d5c65159SKalle Valo int buf_len; 1593d5c65159SKalle Valo 1594d2f510faSSriram R /* As the msdu is spread across multiple rx buffers, 1595d2f510faSSriram R * find the offset to the start of msdu for computing 1596d2f510faSSriram R * the length of the msdu in the first buffer. 1597d2f510faSSriram R */ 1598d2f510faSSriram R buf_first_hdr_len = HAL_RX_DESC_SIZE + l3pad_bytes; 1599d2f510faSSriram R buf_first_len = DP_RX_BUFFER_SIZE - buf_first_hdr_len; 1600d2f510faSSriram R 1601d2f510faSSriram R if (WARN_ON_ONCE(msdu_len <= buf_first_len)) { 1602d2f510faSSriram R skb_put(first, buf_first_hdr_len + msdu_len); 1603d2f510faSSriram R skb_pull(first, buf_first_hdr_len); 1604d5c65159SKalle Valo return 0; 1605d5c65159SKalle Valo } 1606d5c65159SKalle Valo 1607d5c65159SKalle Valo ldesc = (struct hal_rx_desc *)last->data; 1608d5c65159SKalle Valo rxcb->is_first_msdu = ath11k_dp_rx_h_msdu_end_first_msdu(ldesc); 1609d5c65159SKalle Valo rxcb->is_last_msdu = ath11k_dp_rx_h_msdu_end_last_msdu(ldesc); 1610d5c65159SKalle Valo 1611d5c65159SKalle Valo /* MSDU spans over multiple buffers because the length of the MSDU 1612d5c65159SKalle Valo * exceeds DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE. So assume the data 1613d5c65159SKalle Valo * in the first buf is of length DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE. 1614d5c65159SKalle Valo */ 1615d5c65159SKalle Valo skb_put(first, DP_RX_BUFFER_SIZE); 1616d2f510faSSriram R skb_pull(first, buf_first_hdr_len); 1617d5c65159SKalle Valo 161830679ec4SKarthikeyan Periyasamy /* When an MSDU spread over multiple buffers attention, MSDU_END and 161930679ec4SKarthikeyan Periyasamy * MPDU_END tlvs are valid only in the last buffer. Copy those tlvs. 162030679ec4SKarthikeyan Periyasamy */ 162130679ec4SKarthikeyan Periyasamy ath11k_dp_rx_desc_end_tlv_copy(rxcb->rx_desc, ldesc); 162230679ec4SKarthikeyan Periyasamy 1623d2f510faSSriram R space_extra = msdu_len - (buf_first_len + skb_tailroom(first)); 1624d5c65159SKalle Valo if (space_extra > 0 && 1625d5c65159SKalle Valo (pskb_expand_head(first, 0, space_extra, GFP_ATOMIC) < 0)) { 1626d5c65159SKalle Valo /* Free up all buffers of the MSDU */ 1627d5c65159SKalle Valo while ((skb = __skb_dequeue(msdu_list)) != NULL) { 1628d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(skb); 1629d5c65159SKalle Valo if (!rxcb->is_continuation) { 1630d5c65159SKalle Valo dev_kfree_skb_any(skb); 1631d5c65159SKalle Valo break; 1632d5c65159SKalle Valo } 1633d5c65159SKalle Valo dev_kfree_skb_any(skb); 1634d5c65159SKalle Valo } 1635d5c65159SKalle Valo return -ENOMEM; 1636d5c65159SKalle Valo } 1637d5c65159SKalle Valo 1638d2f510faSSriram R rem_len = msdu_len - buf_first_len; 1639d5c65159SKalle Valo while ((skb = __skb_dequeue(msdu_list)) != NULL && rem_len > 0) { 1640d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(skb); 1641d5c65159SKalle Valo if (rxcb->is_continuation) 1642d5c65159SKalle Valo buf_len = DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE; 1643d5c65159SKalle Valo else 1644d5c65159SKalle Valo buf_len = rem_len; 1645d5c65159SKalle Valo 1646d5c65159SKalle Valo if (buf_len > (DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE)) { 1647d5c65159SKalle Valo WARN_ON_ONCE(1); 1648d5c65159SKalle Valo dev_kfree_skb_any(skb); 1649d5c65159SKalle Valo return -EINVAL; 1650d5c65159SKalle Valo } 1651d5c65159SKalle Valo 1652d5c65159SKalle Valo skb_put(skb, buf_len + HAL_RX_DESC_SIZE); 1653d5c65159SKalle Valo skb_pull(skb, HAL_RX_DESC_SIZE); 1654d5c65159SKalle Valo skb_copy_from_linear_data(skb, skb_put(first, buf_len), 1655d5c65159SKalle Valo buf_len); 1656d5c65159SKalle Valo dev_kfree_skb_any(skb); 1657d5c65159SKalle Valo 1658d5c65159SKalle Valo rem_len -= buf_len; 1659d5c65159SKalle Valo if (!rxcb->is_continuation) 1660d5c65159SKalle Valo break; 1661d5c65159SKalle Valo } 1662d5c65159SKalle Valo 1663d5c65159SKalle Valo return 0; 1664d5c65159SKalle Valo } 1665d5c65159SKalle Valo 1666d5c65159SKalle Valo static struct sk_buff *ath11k_dp_rx_get_msdu_last_buf(struct sk_buff_head *msdu_list, 1667d5c65159SKalle Valo struct sk_buff *first) 1668d5c65159SKalle Valo { 1669d5c65159SKalle Valo struct sk_buff *skb; 1670d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(first); 1671d5c65159SKalle Valo 1672d5c65159SKalle Valo if (!rxcb->is_continuation) 1673d5c65159SKalle Valo return first; 1674d5c65159SKalle Valo 1675d5c65159SKalle Valo skb_queue_walk(msdu_list, skb) { 1676d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(skb); 1677d5c65159SKalle Valo if (!rxcb->is_continuation) 1678d5c65159SKalle Valo return skb; 1679d5c65159SKalle Valo } 1680d5c65159SKalle Valo 1681d5c65159SKalle Valo return NULL; 1682d5c65159SKalle Valo } 1683d5c65159SKalle Valo 1684d5c65159SKalle Valo static void ath11k_dp_rx_h_csum_offload(struct sk_buff *msdu) 1685d5c65159SKalle Valo { 1686d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 1687d5c65159SKalle Valo bool ip_csum_fail, l4_csum_fail; 1688d5c65159SKalle Valo 1689d5c65159SKalle Valo ip_csum_fail = ath11k_dp_rx_h_attn_ip_cksum_fail(rxcb->rx_desc); 1690d5c65159SKalle Valo l4_csum_fail = ath11k_dp_rx_h_attn_l4_cksum_fail(rxcb->rx_desc); 1691d5c65159SKalle Valo 1692d5c65159SKalle Valo msdu->ip_summed = (ip_csum_fail || l4_csum_fail) ? 1693d5c65159SKalle Valo CHECKSUM_NONE : CHECKSUM_UNNECESSARY; 1694d5c65159SKalle Valo } 1695d5c65159SKalle Valo 1696d5c65159SKalle Valo static int ath11k_dp_rx_crypto_mic_len(struct ath11k *ar, 1697d5c65159SKalle Valo enum hal_encrypt_type enctype) 1698d5c65159SKalle Valo { 1699d5c65159SKalle Valo switch (enctype) { 1700d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_OPEN: 1701d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_TKIP_NO_MIC: 1702d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_TKIP_MIC: 1703d5c65159SKalle Valo return 0; 1704d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_CCMP_128: 1705d5c65159SKalle Valo return IEEE80211_CCMP_MIC_LEN; 1706d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_CCMP_256: 1707d5c65159SKalle Valo return IEEE80211_CCMP_256_MIC_LEN; 1708d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_GCMP_128: 1709d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_AES_GCMP_256: 1710d5c65159SKalle Valo return IEEE80211_GCMP_MIC_LEN; 1711d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_40: 1712d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_104: 1713d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_128: 1714d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WAPI_GCM_SM4: 1715d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WAPI: 1716d5c65159SKalle Valo break; 1717d5c65159SKalle Valo } 1718d5c65159SKalle Valo 1719d5c65159SKalle Valo ath11k_warn(ar->ab, "unsupported encryption type %d for mic len\n", enctype); 1720d5c65159SKalle Valo return 0; 1721d5c65159SKalle Valo } 1722d5c65159SKalle Valo 1723d5c65159SKalle Valo static int ath11k_dp_rx_crypto_param_len(struct ath11k *ar, 1724d5c65159SKalle Valo enum hal_encrypt_type enctype) 1725d5c65159SKalle Valo { 1726d5c65159SKalle Valo switch (enctype) { 1727d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_OPEN: 1728d5c65159SKalle Valo return 0; 1729d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_TKIP_NO_MIC: 1730d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_TKIP_MIC: 1731d5c65159SKalle Valo return IEEE80211_TKIP_IV_LEN; 1732d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_CCMP_128: 1733d5c65159SKalle Valo return IEEE80211_CCMP_HDR_LEN; 1734d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_CCMP_256: 1735d5c65159SKalle Valo return IEEE80211_CCMP_256_HDR_LEN; 1736d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_GCMP_128: 1737d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_AES_GCMP_256: 1738d5c65159SKalle Valo return IEEE80211_GCMP_HDR_LEN; 1739d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_40: 1740d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_104: 1741d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_128: 1742d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WAPI_GCM_SM4: 1743d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WAPI: 1744d5c65159SKalle Valo break; 1745d5c65159SKalle Valo } 1746d5c65159SKalle Valo 1747d5c65159SKalle Valo ath11k_warn(ar->ab, "unsupported encryption type %d\n", enctype); 1748d5c65159SKalle Valo return 0; 1749d5c65159SKalle Valo } 1750d5c65159SKalle Valo 1751d5c65159SKalle Valo static int ath11k_dp_rx_crypto_icv_len(struct ath11k *ar, 1752d5c65159SKalle Valo enum hal_encrypt_type enctype) 1753d5c65159SKalle Valo { 1754d5c65159SKalle Valo switch (enctype) { 1755d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_OPEN: 1756d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_CCMP_128: 1757d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_CCMP_256: 1758d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_GCMP_128: 1759d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_AES_GCMP_256: 1760d5c65159SKalle Valo return 0; 1761d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_TKIP_NO_MIC: 1762d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_TKIP_MIC: 1763d5c65159SKalle Valo return IEEE80211_TKIP_ICV_LEN; 1764d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_40: 1765d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_104: 1766d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WEP_128: 1767d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WAPI_GCM_SM4: 1768d5c65159SKalle Valo case HAL_ENCRYPT_TYPE_WAPI: 1769d5c65159SKalle Valo break; 1770d5c65159SKalle Valo } 1771d5c65159SKalle Valo 1772d5c65159SKalle Valo ath11k_warn(ar->ab, "unsupported encryption type %d\n", enctype); 1773d5c65159SKalle Valo return 0; 1774d5c65159SKalle Valo } 1775d5c65159SKalle Valo 1776d5c65159SKalle Valo static void ath11k_dp_rx_h_undecap_nwifi(struct ath11k *ar, 1777d5c65159SKalle Valo struct sk_buff *msdu, 1778d5c65159SKalle Valo u8 *first_hdr, 1779d5c65159SKalle Valo enum hal_encrypt_type enctype, 1780d5c65159SKalle Valo struct ieee80211_rx_status *status) 1781d5c65159SKalle Valo { 1782acc79d98SSriram R struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 1783acc79d98SSriram R u8 decap_hdr[DP_MAX_NWIFI_HDR_LEN]; 1784d5c65159SKalle Valo struct ieee80211_hdr *hdr; 1785d5c65159SKalle Valo size_t hdr_len; 1786d5c65159SKalle Valo u8 da[ETH_ALEN]; 1787d5c65159SKalle Valo u8 sa[ETH_ALEN]; 1788acc79d98SSriram R u16 qos_ctl = 0; 1789acc79d98SSriram R u8 *qos; 1790d5c65159SKalle Valo 1791acc79d98SSriram R /* copy SA & DA and pull decapped header */ 1792d5c65159SKalle Valo hdr = (struct ieee80211_hdr *)msdu->data; 1793acc79d98SSriram R hdr_len = ieee80211_hdrlen(hdr->frame_control); 1794d5c65159SKalle Valo ether_addr_copy(da, ieee80211_get_DA(hdr)); 1795d5c65159SKalle Valo ether_addr_copy(sa, ieee80211_get_SA(hdr)); 1796d5c65159SKalle Valo skb_pull(msdu, ieee80211_hdrlen(hdr->frame_control)); 1797d5c65159SKalle Valo 1798acc79d98SSriram R if (rxcb->is_first_msdu) { 1799acc79d98SSriram R /* original 802.11 header is valid for the first msdu 1800acc79d98SSriram R * hence we can reuse the same header 1801acc79d98SSriram R */ 1802d5c65159SKalle Valo hdr = (struct ieee80211_hdr *)first_hdr; 1803d5c65159SKalle Valo hdr_len = ieee80211_hdrlen(hdr->frame_control); 1804d5c65159SKalle Valo 1805acc79d98SSriram R /* Each A-MSDU subframe will be reported as a separate MSDU, 1806acc79d98SSriram R * so strip the A-MSDU bit from QoS Ctl. 1807acc79d98SSriram R */ 1808acc79d98SSriram R if (ieee80211_is_data_qos(hdr->frame_control)) { 1809acc79d98SSriram R qos = ieee80211_get_qos_ctl(hdr); 1810acc79d98SSriram R qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; 1811acc79d98SSriram R } 1812acc79d98SSriram R } else { 1813acc79d98SSriram R /* Rebuild qos header if this is a middle/last msdu */ 1814acc79d98SSriram R hdr->frame_control |= __cpu_to_le16(IEEE80211_STYPE_QOS_DATA); 1815acc79d98SSriram R 1816acc79d98SSriram R /* Reset the order bit as the HT_Control header is stripped */ 1817acc79d98SSriram R hdr->frame_control &= ~(__cpu_to_le16(IEEE80211_FCTL_ORDER)); 1818acc79d98SSriram R 1819acc79d98SSriram R qos_ctl = rxcb->tid; 1820acc79d98SSriram R 1821acc79d98SSriram R if (ath11k_dp_rx_h_msdu_start_mesh_ctl_present(rxcb->rx_desc)) 1822acc79d98SSriram R qos_ctl |= IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT; 1823acc79d98SSriram R 1824acc79d98SSriram R /* TODO Add other QoS ctl fields when required */ 1825acc79d98SSriram R 1826acc79d98SSriram R /* copy decap header before overwriting for reuse below */ 1827acc79d98SSriram R memcpy(decap_hdr, (uint8_t *)hdr, hdr_len); 1828acc79d98SSriram R } 1829acc79d98SSriram R 1830d5c65159SKalle Valo if (!(status->flag & RX_FLAG_IV_STRIPPED)) { 1831d5c65159SKalle Valo memcpy(skb_push(msdu, 1832d5c65159SKalle Valo ath11k_dp_rx_crypto_param_len(ar, enctype)), 1833d5c65159SKalle Valo (void *)hdr + hdr_len, 1834d5c65159SKalle Valo ath11k_dp_rx_crypto_param_len(ar, enctype)); 1835d5c65159SKalle Valo } 1836d5c65159SKalle Valo 1837acc79d98SSriram R if (!rxcb->is_first_msdu) { 1838acc79d98SSriram R memcpy(skb_push(msdu, 1839acc79d98SSriram R IEEE80211_QOS_CTL_LEN), &qos_ctl, 1840acc79d98SSriram R IEEE80211_QOS_CTL_LEN); 1841acc79d98SSriram R memcpy(skb_push(msdu, hdr_len), decap_hdr, hdr_len); 1842acc79d98SSriram R return; 1843acc79d98SSriram R } 1844acc79d98SSriram R 1845d5c65159SKalle Valo memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); 1846d5c65159SKalle Valo 1847d5c65159SKalle Valo /* original 802.11 header has a different DA and in 1848d5c65159SKalle Valo * case of 4addr it may also have different SA 1849d5c65159SKalle Valo */ 1850d5c65159SKalle Valo hdr = (struct ieee80211_hdr *)msdu->data; 1851d5c65159SKalle Valo ether_addr_copy(ieee80211_get_DA(hdr), da); 1852d5c65159SKalle Valo ether_addr_copy(ieee80211_get_SA(hdr), sa); 1853d5c65159SKalle Valo } 1854d5c65159SKalle Valo 1855d5c65159SKalle Valo static void ath11k_dp_rx_h_undecap_raw(struct ath11k *ar, struct sk_buff *msdu, 1856d5c65159SKalle Valo enum hal_encrypt_type enctype, 1857d5c65159SKalle Valo struct ieee80211_rx_status *status, 1858d5c65159SKalle Valo bool decrypted) 1859d5c65159SKalle Valo { 1860d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 1861d5c65159SKalle Valo struct ieee80211_hdr *hdr; 1862d5c65159SKalle Valo size_t hdr_len; 1863d5c65159SKalle Valo size_t crypto_len; 1864d5c65159SKalle Valo 1865d5c65159SKalle Valo if (!rxcb->is_first_msdu || 1866d5c65159SKalle Valo !(rxcb->is_first_msdu && rxcb->is_last_msdu)) { 1867d5c65159SKalle Valo WARN_ON_ONCE(1); 1868d5c65159SKalle Valo return; 1869d5c65159SKalle Valo } 1870d5c65159SKalle Valo 1871d5c65159SKalle Valo skb_trim(msdu, msdu->len - FCS_LEN); 1872d5c65159SKalle Valo 1873d5c65159SKalle Valo if (!decrypted) 1874d5c65159SKalle Valo return; 1875d5c65159SKalle Valo 1876d5c65159SKalle Valo hdr = (void *)msdu->data; 1877d5c65159SKalle Valo 1878d5c65159SKalle Valo /* Tail */ 1879d5c65159SKalle Valo if (status->flag & RX_FLAG_IV_STRIPPED) { 1880d5c65159SKalle Valo skb_trim(msdu, msdu->len - 1881d5c65159SKalle Valo ath11k_dp_rx_crypto_mic_len(ar, enctype)); 1882d5c65159SKalle Valo 1883d5c65159SKalle Valo skb_trim(msdu, msdu->len - 1884d5c65159SKalle Valo ath11k_dp_rx_crypto_icv_len(ar, enctype)); 1885d5c65159SKalle Valo } else { 1886d5c65159SKalle Valo /* MIC */ 1887d5c65159SKalle Valo if (status->flag & RX_FLAG_MIC_STRIPPED) 1888d5c65159SKalle Valo skb_trim(msdu, msdu->len - 1889d5c65159SKalle Valo ath11k_dp_rx_crypto_mic_len(ar, enctype)); 1890d5c65159SKalle Valo 1891d5c65159SKalle Valo /* ICV */ 1892d5c65159SKalle Valo if (status->flag & RX_FLAG_ICV_STRIPPED) 1893d5c65159SKalle Valo skb_trim(msdu, msdu->len - 1894d5c65159SKalle Valo ath11k_dp_rx_crypto_icv_len(ar, enctype)); 1895d5c65159SKalle Valo } 1896d5c65159SKalle Valo 1897d5c65159SKalle Valo /* MMIC */ 1898d5c65159SKalle Valo if ((status->flag & RX_FLAG_MMIC_STRIPPED) && 1899d5c65159SKalle Valo !ieee80211_has_morefrags(hdr->frame_control) && 1900d5c65159SKalle Valo enctype == HAL_ENCRYPT_TYPE_TKIP_MIC) 1901d5c65159SKalle Valo skb_trim(msdu, msdu->len - IEEE80211_CCMP_MIC_LEN); 1902d5c65159SKalle Valo 1903d5c65159SKalle Valo /* Head */ 1904d5c65159SKalle Valo if (status->flag & RX_FLAG_IV_STRIPPED) { 1905d5c65159SKalle Valo hdr_len = ieee80211_hdrlen(hdr->frame_control); 1906d5c65159SKalle Valo crypto_len = ath11k_dp_rx_crypto_param_len(ar, enctype); 1907d5c65159SKalle Valo 1908d5c65159SKalle Valo memmove((void *)msdu->data + crypto_len, 1909d5c65159SKalle Valo (void *)msdu->data, hdr_len); 1910d5c65159SKalle Valo skb_pull(msdu, crypto_len); 1911d5c65159SKalle Valo } 1912d5c65159SKalle Valo } 1913d5c65159SKalle Valo 1914d5c65159SKalle Valo static void *ath11k_dp_rx_h_find_rfc1042(struct ath11k *ar, 1915d5c65159SKalle Valo struct sk_buff *msdu, 1916d5c65159SKalle Valo enum hal_encrypt_type enctype) 1917d5c65159SKalle Valo { 1918d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 1919d5c65159SKalle Valo struct ieee80211_hdr *hdr; 1920d5c65159SKalle Valo size_t hdr_len, crypto_len; 1921d5c65159SKalle Valo void *rfc1042; 1922d5c65159SKalle Valo bool is_amsdu; 1923d5c65159SKalle Valo 1924d5c65159SKalle Valo is_amsdu = !(rxcb->is_first_msdu && rxcb->is_last_msdu); 1925d5c65159SKalle Valo hdr = (struct ieee80211_hdr *)ath11k_dp_rx_h_80211_hdr(rxcb->rx_desc); 1926d5c65159SKalle Valo rfc1042 = hdr; 1927d5c65159SKalle Valo 1928d5c65159SKalle Valo if (rxcb->is_first_msdu) { 1929d5c65159SKalle Valo hdr_len = ieee80211_hdrlen(hdr->frame_control); 1930d5c65159SKalle Valo crypto_len = ath11k_dp_rx_crypto_param_len(ar, enctype); 1931d5c65159SKalle Valo 1932d5c65159SKalle Valo rfc1042 += hdr_len + crypto_len; 1933d5c65159SKalle Valo } 1934d5c65159SKalle Valo 1935d5c65159SKalle Valo if (is_amsdu) 1936d5c65159SKalle Valo rfc1042 += sizeof(struct ath11k_dp_amsdu_subframe_hdr); 1937d5c65159SKalle Valo 1938d5c65159SKalle Valo return rfc1042; 1939d5c65159SKalle Valo } 1940d5c65159SKalle Valo 1941d5c65159SKalle Valo static void ath11k_dp_rx_h_undecap_eth(struct ath11k *ar, 1942d5c65159SKalle Valo struct sk_buff *msdu, 1943d5c65159SKalle Valo u8 *first_hdr, 1944d5c65159SKalle Valo enum hal_encrypt_type enctype, 1945d5c65159SKalle Valo struct ieee80211_rx_status *status) 1946d5c65159SKalle Valo { 1947d5c65159SKalle Valo struct ieee80211_hdr *hdr; 1948d5c65159SKalle Valo struct ethhdr *eth; 1949d5c65159SKalle Valo size_t hdr_len; 1950d5c65159SKalle Valo u8 da[ETH_ALEN]; 1951d5c65159SKalle Valo u8 sa[ETH_ALEN]; 1952d5c65159SKalle Valo void *rfc1042; 1953d5c65159SKalle Valo 1954d5c65159SKalle Valo rfc1042 = ath11k_dp_rx_h_find_rfc1042(ar, msdu, enctype); 1955d5c65159SKalle Valo if (WARN_ON_ONCE(!rfc1042)) 1956d5c65159SKalle Valo return; 1957d5c65159SKalle Valo 1958d5c65159SKalle Valo /* pull decapped header and copy SA & DA */ 1959d5c65159SKalle Valo eth = (struct ethhdr *)msdu->data; 1960d5c65159SKalle Valo ether_addr_copy(da, eth->h_dest); 1961d5c65159SKalle Valo ether_addr_copy(sa, eth->h_source); 1962d5c65159SKalle Valo skb_pull(msdu, sizeof(struct ethhdr)); 1963d5c65159SKalle Valo 1964d5c65159SKalle Valo /* push rfc1042/llc/snap */ 1965d5c65159SKalle Valo memcpy(skb_push(msdu, sizeof(struct ath11k_dp_rfc1042_hdr)), rfc1042, 1966d5c65159SKalle Valo sizeof(struct ath11k_dp_rfc1042_hdr)); 1967d5c65159SKalle Valo 1968d5c65159SKalle Valo /* push original 802.11 header */ 1969d5c65159SKalle Valo hdr = (struct ieee80211_hdr *)first_hdr; 1970d5c65159SKalle Valo hdr_len = ieee80211_hdrlen(hdr->frame_control); 1971d5c65159SKalle Valo 1972d5c65159SKalle Valo if (!(status->flag & RX_FLAG_IV_STRIPPED)) { 1973d5c65159SKalle Valo memcpy(skb_push(msdu, 1974d5c65159SKalle Valo ath11k_dp_rx_crypto_param_len(ar, enctype)), 1975d5c65159SKalle Valo (void *)hdr + hdr_len, 1976d5c65159SKalle Valo ath11k_dp_rx_crypto_param_len(ar, enctype)); 1977d5c65159SKalle Valo } 1978d5c65159SKalle Valo 1979d5c65159SKalle Valo memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); 1980d5c65159SKalle Valo 1981d5c65159SKalle Valo /* original 802.11 header has a different DA and in 1982d5c65159SKalle Valo * case of 4addr it may also have different SA 1983d5c65159SKalle Valo */ 1984d5c65159SKalle Valo hdr = (struct ieee80211_hdr *)msdu->data; 1985d5c65159SKalle Valo ether_addr_copy(ieee80211_get_DA(hdr), da); 1986d5c65159SKalle Valo ether_addr_copy(ieee80211_get_SA(hdr), sa); 1987d5c65159SKalle Valo } 1988d5c65159SKalle Valo 1989d5c65159SKalle Valo static void ath11k_dp_rx_h_undecap(struct ath11k *ar, struct sk_buff *msdu, 1990d5c65159SKalle Valo struct hal_rx_desc *rx_desc, 1991d5c65159SKalle Valo enum hal_encrypt_type enctype, 1992d5c65159SKalle Valo struct ieee80211_rx_status *status, 1993d5c65159SKalle Valo bool decrypted) 1994d5c65159SKalle Valo { 1995d5c65159SKalle Valo u8 *first_hdr; 1996d5c65159SKalle Valo u8 decap; 1997d5c65159SKalle Valo 1998d5c65159SKalle Valo first_hdr = ath11k_dp_rx_h_80211_hdr(rx_desc); 1999243874c6SManikanta Pubbisetty decap = ath11k_dp_rx_h_msdu_start_decap_type(rx_desc); 2000d5c65159SKalle Valo 2001d5c65159SKalle Valo switch (decap) { 2002d5c65159SKalle Valo case DP_RX_DECAP_TYPE_NATIVE_WIFI: 2003d5c65159SKalle Valo ath11k_dp_rx_h_undecap_nwifi(ar, msdu, first_hdr, 2004d5c65159SKalle Valo enctype, status); 2005d5c65159SKalle Valo break; 2006d5c65159SKalle Valo case DP_RX_DECAP_TYPE_RAW: 2007d5c65159SKalle Valo ath11k_dp_rx_h_undecap_raw(ar, msdu, enctype, status, 2008d5c65159SKalle Valo decrypted); 2009d5c65159SKalle Valo break; 2010d5c65159SKalle Valo case DP_RX_DECAP_TYPE_ETHERNET2_DIX: 2011acc79d98SSriram R /* TODO undecap support for middle/last msdu's of amsdu */ 2012d5c65159SKalle Valo ath11k_dp_rx_h_undecap_eth(ar, msdu, first_hdr, 2013d5c65159SKalle Valo enctype, status); 2014d5c65159SKalle Valo break; 2015d5c65159SKalle Valo case DP_RX_DECAP_TYPE_8023: 2016d5c65159SKalle Valo /* TODO: Handle undecap for these formats */ 2017d5c65159SKalle Valo break; 2018d5c65159SKalle Valo } 2019d5c65159SKalle Valo } 2020d5c65159SKalle Valo 2021d5c65159SKalle Valo static void ath11k_dp_rx_h_mpdu(struct ath11k *ar, 2022acc79d98SSriram R struct sk_buff *msdu, 2023d5c65159SKalle Valo struct hal_rx_desc *rx_desc, 2024d5c65159SKalle Valo struct ieee80211_rx_status *rx_status) 2025d5c65159SKalle Valo { 2026acc79d98SSriram R bool fill_crypto_hdr, mcast; 2027d5c65159SKalle Valo enum hal_encrypt_type enctype; 2028acc79d98SSriram R bool is_decrypted = false; 2029acc79d98SSriram R struct ieee80211_hdr *hdr; 2030acc79d98SSriram R struct ath11k_peer *peer; 2031d5c65159SKalle Valo u32 err_bitmap; 2032d5c65159SKalle Valo 2033acc79d98SSriram R hdr = (struct ieee80211_hdr *)msdu->data; 2034d5c65159SKalle Valo 20351441b2f2SManikanta Pubbisetty /* PN for multicast packets will be checked in mac80211 */ 2036acc79d98SSriram R 2037acc79d98SSriram R mcast = is_multicast_ether_addr(hdr->addr1); 2038acc79d98SSriram R fill_crypto_hdr = mcast; 20391441b2f2SManikanta Pubbisetty 2040d5c65159SKalle Valo is_decrypted = ath11k_dp_rx_h_attn_is_decrypted(rx_desc); 2041d5c65159SKalle Valo 2042acc79d98SSriram R spin_lock_bh(&ar->ab->base_lock); 2043acc79d98SSriram R peer = ath11k_peer_find_by_addr(ar->ab, hdr->addr2); 2044acc79d98SSriram R if (peer) { 2045acc79d98SSriram R if (mcast) 2046acc79d98SSriram R enctype = peer->sec_type_grp; 2047acc79d98SSriram R else 2048acc79d98SSriram R enctype = peer->sec_type; 2049acc79d98SSriram R } else { 2050acc79d98SSriram R enctype = HAL_ENCRYPT_TYPE_OPEN; 2051acc79d98SSriram R } 2052acc79d98SSriram R spin_unlock_bh(&ar->ab->base_lock); 2053d5c65159SKalle Valo 2054acc79d98SSriram R err_bitmap = ath11k_dp_rx_h_attn_mpdu_err(rx_desc); 2055d5c65159SKalle Valo 2056acc79d98SSriram R /* Clear per-MPDU flags while leaving per-PPDU flags intact */ 2057d5c65159SKalle Valo rx_status->flag &= ~(RX_FLAG_FAILED_FCS_CRC | 2058d5c65159SKalle Valo RX_FLAG_MMIC_ERROR | 2059d5c65159SKalle Valo RX_FLAG_DECRYPTED | 2060d5c65159SKalle Valo RX_FLAG_IV_STRIPPED | 2061d5c65159SKalle Valo RX_FLAG_MMIC_STRIPPED); 2062d5c65159SKalle Valo 2063d5c65159SKalle Valo if (err_bitmap & DP_RX_MPDU_ERR_FCS) 2064d5c65159SKalle Valo rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; 2065d5c65159SKalle Valo if (err_bitmap & DP_RX_MPDU_ERR_TKIP_MIC) 2066d5c65159SKalle Valo rx_status->flag |= RX_FLAG_MMIC_ERROR; 2067d5c65159SKalle Valo 20681441b2f2SManikanta Pubbisetty if (is_decrypted) { 20691441b2f2SManikanta Pubbisetty rx_status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_MMIC_STRIPPED; 20701441b2f2SManikanta Pubbisetty 20711441b2f2SManikanta Pubbisetty if (fill_crypto_hdr) 20721441b2f2SManikanta Pubbisetty rx_status->flag |= RX_FLAG_MIC_STRIPPED | 20731441b2f2SManikanta Pubbisetty RX_FLAG_ICV_STRIPPED; 20741441b2f2SManikanta Pubbisetty else 20751441b2f2SManikanta Pubbisetty rx_status->flag |= RX_FLAG_IV_STRIPPED | 20761441b2f2SManikanta Pubbisetty RX_FLAG_PN_VALIDATED; 20771441b2f2SManikanta Pubbisetty } 2078d5c65159SKalle Valo 2079d5c65159SKalle Valo ath11k_dp_rx_h_csum_offload(msdu); 2080d5c65159SKalle Valo ath11k_dp_rx_h_undecap(ar, msdu, rx_desc, 2081d5c65159SKalle Valo enctype, rx_status, is_decrypted); 20821441b2f2SManikanta Pubbisetty 20831441b2f2SManikanta Pubbisetty if (!is_decrypted || fill_crypto_hdr) 2084acc79d98SSriram R return; 20851441b2f2SManikanta Pubbisetty 20861441b2f2SManikanta Pubbisetty hdr = (void *)msdu->data; 20871441b2f2SManikanta Pubbisetty hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED); 2088d5c65159SKalle Valo } 2089d5c65159SKalle Valo 2090d5c65159SKalle Valo static void ath11k_dp_rx_h_rate(struct ath11k *ar, struct hal_rx_desc *rx_desc, 2091d5c65159SKalle Valo struct ieee80211_rx_status *rx_status) 2092d5c65159SKalle Valo { 2093d5c65159SKalle Valo struct ieee80211_supported_band *sband; 2094d5c65159SKalle Valo enum rx_msdu_start_pkt_type pkt_type; 2095d5c65159SKalle Valo u8 bw; 2096d5c65159SKalle Valo u8 rate_mcs, nss; 2097d5c65159SKalle Valo u8 sgi; 2098d5c65159SKalle Valo bool is_cck; 2099d5c65159SKalle Valo 2100d5c65159SKalle Valo pkt_type = ath11k_dp_rx_h_msdu_start_pkt_type(rx_desc); 2101d5c65159SKalle Valo bw = ath11k_dp_rx_h_msdu_start_rx_bw(rx_desc); 2102d5c65159SKalle Valo rate_mcs = ath11k_dp_rx_h_msdu_start_rate_mcs(rx_desc); 2103d5c65159SKalle Valo nss = ath11k_dp_rx_h_msdu_start_nss(rx_desc); 2104d5c65159SKalle Valo sgi = ath11k_dp_rx_h_msdu_start_sgi(rx_desc); 2105d5c65159SKalle Valo 2106d5c65159SKalle Valo switch (pkt_type) { 2107d5c65159SKalle Valo case RX_MSDU_START_PKT_TYPE_11A: 2108d5c65159SKalle Valo case RX_MSDU_START_PKT_TYPE_11B: 2109d5c65159SKalle Valo is_cck = (pkt_type == RX_MSDU_START_PKT_TYPE_11B); 2110d5c65159SKalle Valo sband = &ar->mac.sbands[rx_status->band]; 2111d5c65159SKalle Valo rx_status->rate_idx = ath11k_mac_hw_rate_to_idx(sband, rate_mcs, 2112d5c65159SKalle Valo is_cck); 2113d5c65159SKalle Valo break; 2114d5c65159SKalle Valo case RX_MSDU_START_PKT_TYPE_11N: 2115d5c65159SKalle Valo rx_status->encoding = RX_ENC_HT; 2116d5c65159SKalle Valo if (rate_mcs > ATH11K_HT_MCS_MAX) { 2117d5c65159SKalle Valo ath11k_warn(ar->ab, 2118d5c65159SKalle Valo "Received with invalid mcs in HT mode %d\n", 2119d5c65159SKalle Valo rate_mcs); 2120d5c65159SKalle Valo break; 2121d5c65159SKalle Valo } 2122d5c65159SKalle Valo rx_status->rate_idx = rate_mcs + (8 * (nss - 1)); 2123d5c65159SKalle Valo if (sgi) 2124d5c65159SKalle Valo rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI; 212539e81c6aSTamizh chelvam rx_status->bw = ath11k_mac_bw_to_mac80211_bw(bw); 2126d5c65159SKalle Valo break; 2127d5c65159SKalle Valo case RX_MSDU_START_PKT_TYPE_11AC: 2128d5c65159SKalle Valo rx_status->encoding = RX_ENC_VHT; 2129d5c65159SKalle Valo rx_status->rate_idx = rate_mcs; 2130d5c65159SKalle Valo if (rate_mcs > ATH11K_VHT_MCS_MAX) { 2131d5c65159SKalle Valo ath11k_warn(ar->ab, 2132d5c65159SKalle Valo "Received with invalid mcs in VHT mode %d\n", 2133d5c65159SKalle Valo rate_mcs); 2134d5c65159SKalle Valo break; 2135d5c65159SKalle Valo } 2136d5c65159SKalle Valo rx_status->nss = nss; 2137d5c65159SKalle Valo if (sgi) 2138d5c65159SKalle Valo rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI; 213939e81c6aSTamizh chelvam rx_status->bw = ath11k_mac_bw_to_mac80211_bw(bw); 2140d5c65159SKalle Valo break; 2141d5c65159SKalle Valo case RX_MSDU_START_PKT_TYPE_11AX: 2142d5c65159SKalle Valo rx_status->rate_idx = rate_mcs; 2143d5c65159SKalle Valo if (rate_mcs > ATH11K_HE_MCS_MAX) { 2144d5c65159SKalle Valo ath11k_warn(ar->ab, 2145d5c65159SKalle Valo "Received with invalid mcs in HE mode %d\n", 2146d5c65159SKalle Valo rate_mcs); 2147d5c65159SKalle Valo break; 2148d5c65159SKalle Valo } 2149d5c65159SKalle Valo rx_status->encoding = RX_ENC_HE; 2150d5c65159SKalle Valo rx_status->nss = nss; 21516a0c3702SJohn Crispin rx_status->he_gi = ath11k_he_gi_to_nl80211_he_gi(sgi); 215239e81c6aSTamizh chelvam rx_status->bw = ath11k_mac_bw_to_mac80211_bw(bw); 2153d5c65159SKalle Valo break; 2154d5c65159SKalle Valo } 2155d5c65159SKalle Valo } 2156d5c65159SKalle Valo 2157d5c65159SKalle Valo static void ath11k_dp_rx_h_ppdu(struct ath11k *ar, struct hal_rx_desc *rx_desc, 2158d5c65159SKalle Valo struct ieee80211_rx_status *rx_status) 2159d5c65159SKalle Valo { 2160d5c65159SKalle Valo u8 channel_num; 2161d5c65159SKalle Valo 2162d5c65159SKalle Valo rx_status->freq = 0; 2163d5c65159SKalle Valo rx_status->rate_idx = 0; 2164d5c65159SKalle Valo rx_status->nss = 0; 2165d5c65159SKalle Valo rx_status->encoding = RX_ENC_LEGACY; 2166d5c65159SKalle Valo rx_status->bw = RATE_INFO_BW_20; 2167d5c65159SKalle Valo 2168d5c65159SKalle Valo rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL; 2169d5c65159SKalle Valo 2170d5c65159SKalle Valo channel_num = ath11k_dp_rx_h_msdu_start_freq(rx_desc); 2171d5c65159SKalle Valo 2172d5c65159SKalle Valo if (channel_num >= 1 && channel_num <= 14) { 2173d5c65159SKalle Valo rx_status->band = NL80211_BAND_2GHZ; 2174d5c65159SKalle Valo } else if (channel_num >= 36 && channel_num <= 173) { 2175d5c65159SKalle Valo rx_status->band = NL80211_BAND_5GHZ; 2176d5c65159SKalle Valo } else { 2177de06b2f7SVenkateswara Naralasetty spin_lock_bh(&ar->data_lock); 2178de06b2f7SVenkateswara Naralasetty rx_status->band = ar->rx_channel->band; 2179de06b2f7SVenkateswara Naralasetty channel_num = 2180de06b2f7SVenkateswara Naralasetty ieee80211_frequency_to_channel(ar->rx_channel->center_freq); 2181de06b2f7SVenkateswara Naralasetty spin_unlock_bh(&ar->data_lock); 2182de06b2f7SVenkateswara Naralasetty ath11k_dbg_dump(ar->ab, ATH11K_DBG_DATA, NULL, "rx_desc: ", 2183de06b2f7SVenkateswara Naralasetty rx_desc, sizeof(struct hal_rx_desc)); 2184d5c65159SKalle Valo } 2185d5c65159SKalle Valo 2186d5c65159SKalle Valo rx_status->freq = ieee80211_channel_to_frequency(channel_num, 2187d5c65159SKalle Valo rx_status->band); 2188d5c65159SKalle Valo 2189d5c65159SKalle Valo ath11k_dp_rx_h_rate(ar, rx_desc, rx_status); 2190d5c65159SKalle Valo } 2191d5c65159SKalle Valo 2192d5c65159SKalle Valo static char *ath11k_print_get_tid(struct ieee80211_hdr *hdr, char *out, 2193d5c65159SKalle Valo size_t size) 2194d5c65159SKalle Valo { 2195d5c65159SKalle Valo u8 *qc; 2196d5c65159SKalle Valo int tid; 2197d5c65159SKalle Valo 2198d5c65159SKalle Valo if (!ieee80211_is_data_qos(hdr->frame_control)) 2199d5c65159SKalle Valo return ""; 2200d5c65159SKalle Valo 2201d5c65159SKalle Valo qc = ieee80211_get_qos_ctl(hdr); 2202d5c65159SKalle Valo tid = *qc & IEEE80211_QOS_CTL_TID_MASK; 2203d5c65159SKalle Valo snprintf(out, size, "tid %d", tid); 2204d5c65159SKalle Valo 2205d5c65159SKalle Valo return out; 2206d5c65159SKalle Valo } 2207d5c65159SKalle Valo 2208d5c65159SKalle Valo static void ath11k_dp_rx_deliver_msdu(struct ath11k *ar, struct napi_struct *napi, 2209d5c65159SKalle Valo struct sk_buff *msdu) 2210d5c65159SKalle Valo { 2211e4eb7b5cSJohn Crispin static const struct ieee80211_radiotap_he known = { 221293634c61SJohn Crispin .data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN | 221393634c61SJohn Crispin IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN), 2214e4eb7b5cSJohn Crispin .data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN), 2215e4eb7b5cSJohn Crispin }; 2216d5c65159SKalle Valo struct ieee80211_rx_status *status; 2217d5c65159SKalle Valo struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data; 2218e4eb7b5cSJohn Crispin struct ieee80211_radiotap_he *he = NULL; 2219d5c65159SKalle Valo char tid[32]; 2220d5c65159SKalle Valo 2221d5c65159SKalle Valo status = IEEE80211_SKB_RXCB(msdu); 2222e4eb7b5cSJohn Crispin if (status->encoding == RX_ENC_HE) { 2223e4eb7b5cSJohn Crispin he = skb_push(msdu, sizeof(known)); 2224e4eb7b5cSJohn Crispin memcpy(he, &known, sizeof(known)); 2225e4eb7b5cSJohn Crispin status->flag |= RX_FLAG_RADIOTAP_HE; 2226e4eb7b5cSJohn Crispin } 2227d5c65159SKalle Valo 2228d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 2229d5c65159SKalle Valo "rx skb %pK len %u peer %pM %s %s sn %u %s%s%s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %i mic-err %i amsdu-more %i\n", 2230d5c65159SKalle Valo msdu, 2231d5c65159SKalle Valo msdu->len, 2232d5c65159SKalle Valo ieee80211_get_SA(hdr), 2233d5c65159SKalle Valo ath11k_print_get_tid(hdr, tid, sizeof(tid)), 2234d5c65159SKalle Valo is_multicast_ether_addr(ieee80211_get_DA(hdr)) ? 2235d5c65159SKalle Valo "mcast" : "ucast", 2236d5c65159SKalle Valo (__le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4, 2237d5c65159SKalle Valo (status->encoding == RX_ENC_LEGACY) ? "legacy" : "", 2238d5c65159SKalle Valo (status->encoding == RX_ENC_HT) ? "ht" : "", 2239d5c65159SKalle Valo (status->encoding == RX_ENC_VHT) ? "vht" : "", 2240d5c65159SKalle Valo (status->encoding == RX_ENC_HE) ? "he" : "", 2241d5c65159SKalle Valo (status->bw == RATE_INFO_BW_40) ? "40" : "", 2242d5c65159SKalle Valo (status->bw == RATE_INFO_BW_80) ? "80" : "", 2243d5c65159SKalle Valo (status->bw == RATE_INFO_BW_160) ? "160" : "", 2244d5c65159SKalle Valo status->enc_flags & RX_ENC_FLAG_SHORT_GI ? "sgi " : "", 2245d5c65159SKalle Valo status->rate_idx, 2246d5c65159SKalle Valo status->nss, 2247d5c65159SKalle Valo status->freq, 2248d5c65159SKalle Valo status->band, status->flag, 2249d5c65159SKalle Valo !!(status->flag & RX_FLAG_FAILED_FCS_CRC), 2250d5c65159SKalle Valo !!(status->flag & RX_FLAG_MMIC_ERROR), 2251d5c65159SKalle Valo !!(status->flag & RX_FLAG_AMSDU_MORE)); 2252d5c65159SKalle Valo 2253d5c65159SKalle Valo /* TODO: trace rx packet */ 2254d5c65159SKalle Valo 2255d5c65159SKalle Valo ieee80211_rx_napi(ar->hw, NULL, msdu, napi); 2256d5c65159SKalle Valo } 2257d5c65159SKalle Valo 2258acc79d98SSriram R static int ath11k_dp_rx_process_msdu(struct ath11k *ar, 2259acc79d98SSriram R struct sk_buff *msdu, 2260acc79d98SSriram R struct sk_buff_head *msdu_list) 2261d5c65159SKalle Valo { 2262acc79d98SSriram R struct hal_rx_desc *rx_desc, *lrx_desc; 2263acc79d98SSriram R struct ieee80211_rx_status rx_status = {0}; 2264d5c65159SKalle Valo struct ieee80211_rx_status *status; 2265acc79d98SSriram R struct ath11k_skb_rxcb *rxcb; 2266acc79d98SSriram R struct ieee80211_hdr *hdr; 2267acc79d98SSriram R struct sk_buff *last_buf; 2268acc79d98SSriram R u8 l3_pad_bytes; 2269acc79d98SSriram R u16 msdu_len; 2270acc79d98SSriram R int ret; 2271d5c65159SKalle Valo 2272acc79d98SSriram R last_buf = ath11k_dp_rx_get_msdu_last_buf(msdu_list, msdu); 2273acc79d98SSriram R if (!last_buf) { 2274acc79d98SSriram R ath11k_warn(ar->ab, 2275acc79d98SSriram R "No valid Rx buffer to access Atten/MSDU_END/MPDU_END tlvs\n"); 2276acc79d98SSriram R ret = -EIO; 2277acc79d98SSriram R goto free_out; 2278d5c65159SKalle Valo } 2279acc79d98SSriram R 2280acc79d98SSriram R rx_desc = (struct hal_rx_desc *)msdu->data; 2281acc79d98SSriram R lrx_desc = (struct hal_rx_desc *)last_buf->data; 2282acc79d98SSriram R if (!ath11k_dp_rx_h_attn_msdu_done(lrx_desc)) { 2283acc79d98SSriram R ath11k_warn(ar->ab, "msdu_done bit in attention is not set\n"); 2284acc79d98SSriram R ret = -EIO; 2285acc79d98SSriram R goto free_out; 2286acc79d98SSriram R } 2287acc79d98SSriram R 2288acc79d98SSriram R rxcb = ATH11K_SKB_RXCB(msdu); 2289acc79d98SSriram R rxcb->rx_desc = rx_desc; 2290acc79d98SSriram R msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(rx_desc); 2291acc79d98SSriram R l3_pad_bytes = ath11k_dp_rx_h_msdu_end_l3pad(lrx_desc); 2292acc79d98SSriram R 2293acc79d98SSriram R if (rxcb->is_frag) { 2294acc79d98SSriram R skb_pull(msdu, HAL_RX_DESC_SIZE); 2295acc79d98SSriram R } else if (!rxcb->is_continuation) { 2296acc79d98SSriram R if ((msdu_len + HAL_RX_DESC_SIZE) > DP_RX_BUFFER_SIZE) { 2297acc79d98SSriram R ret = -EINVAL; 2298acc79d98SSriram R ath11k_warn(ar->ab, "invalid msdu len %u\n", msdu_len); 2299acc79d98SSriram R goto free_out; 2300acc79d98SSriram R } 2301acc79d98SSriram R skb_put(msdu, HAL_RX_DESC_SIZE + l3_pad_bytes + msdu_len); 2302acc79d98SSriram R skb_pull(msdu, HAL_RX_DESC_SIZE + l3_pad_bytes); 2303acc79d98SSriram R } else { 2304acc79d98SSriram R ret = ath11k_dp_rx_msdu_coalesce(ar, msdu_list, 2305acc79d98SSriram R msdu, last_buf, 2306acc79d98SSriram R l3_pad_bytes, msdu_len); 2307acc79d98SSriram R if (ret) { 2308acc79d98SSriram R ath11k_warn(ar->ab, 2309acc79d98SSriram R "failed to coalesce msdu rx buffer%d\n", ret); 2310acc79d98SSriram R goto free_out; 2311acc79d98SSriram R } 2312acc79d98SSriram R } 2313acc79d98SSriram R 2314acc79d98SSriram R hdr = (struct ieee80211_hdr *)msdu->data; 2315acc79d98SSriram R 2316acc79d98SSriram R /* Process only data frames */ 2317acc79d98SSriram R if (!ieee80211_is_data(hdr->frame_control)) 2318acc79d98SSriram R return -EINVAL; 2319acc79d98SSriram R 2320acc79d98SSriram R ath11k_dp_rx_h_ppdu(ar, rx_desc, &rx_status); 2321acc79d98SSriram R ath11k_dp_rx_h_mpdu(ar, msdu, rx_desc, &rx_status); 2322acc79d98SSriram R 2323acc79d98SSriram R rx_status.flag |= RX_FLAG_SKIP_MONITOR | RX_FLAG_DUP_VALIDATED; 2324d5c65159SKalle Valo 2325d5c65159SKalle Valo status = IEEE80211_SKB_RXCB(msdu); 2326acc79d98SSriram R *status = rx_status; 2327acc79d98SSriram R return 0; 2328acc79d98SSriram R 2329acc79d98SSriram R free_out: 2330acc79d98SSriram R return ret; 2331d5c65159SKalle Valo } 2332d5c65159SKalle Valo 2333acc79d98SSriram R static void ath11k_dp_rx_process_received_packets(struct ath11k_base *ab, 2334d5c65159SKalle Valo struct napi_struct *napi, 2335acc79d98SSriram R struct sk_buff_head *msdu_list, 2336acc79d98SSriram R int *quota, int ring_id) 2337d5c65159SKalle Valo { 2338acc79d98SSriram R struct ath11k_skb_rxcb *rxcb; 2339d5c65159SKalle Valo struct sk_buff *msdu; 2340acc79d98SSriram R struct ath11k *ar; 2341acc79d98SSriram R u8 mac_id; 2342acc79d98SSriram R int ret; 2343d5c65159SKalle Valo 2344acc79d98SSriram R if (skb_queue_empty(msdu_list)) 2345d5c65159SKalle Valo return; 2346d5c65159SKalle Valo 2347d5c65159SKalle Valo rcu_read_lock(); 2348d5c65159SKalle Valo 2349acc79d98SSriram R while (*quota && (msdu = __skb_dequeue(msdu_list))) { 2350acc79d98SSriram R rxcb = ATH11K_SKB_RXCB(msdu); 2351acc79d98SSriram R mac_id = rxcb->mac_id; 2352acc79d98SSriram R ar = ab->pdevs[mac_id].ar; 2353acc79d98SSriram R if (!rcu_dereference(ab->pdevs_active[mac_id])) { 2354acc79d98SSriram R dev_kfree_skb_any(msdu); 2355acc79d98SSriram R continue; 2356acc79d98SSriram R } 2357acc79d98SSriram R 2358acc79d98SSriram R if (test_bit(ATH11K_CAC_RUNNING, &ar->dev_flags)) { 2359acc79d98SSriram R dev_kfree_skb_any(msdu); 2360acc79d98SSriram R continue; 2361acc79d98SSriram R } 2362acc79d98SSriram R 2363acc79d98SSriram R ret = ath11k_dp_rx_process_msdu(ar, msdu, msdu_list); 2364acc79d98SSriram R if (ret) { 2365acc79d98SSriram R ath11k_dbg(ab, ATH11K_DBG_DATA, 2366acc79d98SSriram R "Unable to process msdu %d", ret); 2367d5c65159SKalle Valo dev_kfree_skb_any(msdu); 2368d5c65159SKalle Valo continue; 2369d5c65159SKalle Valo } 2370d5c65159SKalle Valo 2371d5c65159SKalle Valo ath11k_dp_rx_deliver_msdu(ar, napi, msdu); 2372d5c65159SKalle Valo (*quota)--; 2373d5c65159SKalle Valo } 2374acc79d98SSriram R 2375d5c65159SKalle Valo rcu_read_unlock(); 2376d5c65159SKalle Valo } 2377d5c65159SKalle Valo 2378acc79d98SSriram R int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id, 2379acc79d98SSriram R struct napi_struct *napi, int budget) 2380d5c65159SKalle Valo { 2381acc79d98SSriram R struct ath11k_dp *dp = &ab->dp; 2382acc79d98SSriram R struct dp_rxdma_ring *rx_ring; 2383acc79d98SSriram R int num_buffs_reaped[MAX_RADIOS] = {0}; 2384acc79d98SSriram R struct sk_buff_head msdu_list; 2385acc79d98SSriram R struct ath11k_skb_rxcb *rxcb; 2386acc79d98SSriram R int total_msdu_reaped = 0; 2387d5c65159SKalle Valo struct hal_srng *srng; 2388d5c65159SKalle Valo struct sk_buff *msdu; 2389d5c65159SKalle Valo int quota = budget; 2390d5c65159SKalle Valo bool done = false; 2391acc79d98SSriram R int buf_id, mac_id; 2392acc79d98SSriram R struct ath11k *ar; 2393acc79d98SSriram R u32 *rx_desc; 2394acc79d98SSriram R int i; 2395d5c65159SKalle Valo 2396d5c65159SKalle Valo __skb_queue_head_init(&msdu_list); 2397d5c65159SKalle Valo 2398acc79d98SSriram R srng = &ab->hal.srng_list[dp->reo_dst_ring[ring_id].ring_id]; 2399d5c65159SKalle Valo 2400d5c65159SKalle Valo spin_lock_bh(&srng->lock); 2401d5c65159SKalle Valo 2402d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 2403d5c65159SKalle Valo 2404d5c65159SKalle Valo try_again: 2405d5c65159SKalle Valo while ((rx_desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { 24067395fb49SManikanta Pubbisetty struct hal_reo_dest_ring desc = *(struct hal_reo_dest_ring *)rx_desc; 2407293cb583SJohn Crispin enum hal_reo_dest_ring_push_reason push_reason; 2408293cb583SJohn Crispin u32 cookie; 2409d5c65159SKalle Valo 2410293cb583SJohn Crispin cookie = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE, 24117395fb49SManikanta Pubbisetty desc.buf_addr_info.info1); 2412d5c65159SKalle Valo buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, 2413293cb583SJohn Crispin cookie); 2414acc79d98SSriram R mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, cookie); 2415acc79d98SSriram R 2416acc79d98SSriram R ar = ab->pdevs[mac_id].ar; 2417acc79d98SSriram R rx_ring = &ar->dp.rx_refill_buf_ring; 2418d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 2419d5c65159SKalle Valo msdu = idr_find(&rx_ring->bufs_idr, buf_id); 2420d5c65159SKalle Valo if (!msdu) { 2421d5c65159SKalle Valo ath11k_warn(ab, "frame rx with invalid buf_id %d\n", 2422d5c65159SKalle Valo buf_id); 2423d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 2424d5c65159SKalle Valo continue; 2425d5c65159SKalle Valo } 2426d5c65159SKalle Valo 2427d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 2428d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 2429d5c65159SKalle Valo 2430d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(msdu); 2431d5c65159SKalle Valo dma_unmap_single(ab->dev, rxcb->paddr, 2432d5c65159SKalle Valo msdu->len + skb_tailroom(msdu), 2433d5c65159SKalle Valo DMA_FROM_DEVICE); 2434d5c65159SKalle Valo 2435acc79d98SSriram R num_buffs_reaped[mac_id]++; 2436acc79d98SSriram R total_msdu_reaped++; 2437d5c65159SKalle Valo 2438293cb583SJohn Crispin push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON, 24397395fb49SManikanta Pubbisetty desc.info0); 2440293cb583SJohn Crispin if (push_reason != 2441d5c65159SKalle Valo HAL_REO_DEST_RING_PUSH_REASON_ROUTING_INSTRUCTION) { 2442d5c65159SKalle Valo dev_kfree_skb_any(msdu); 2443acc79d98SSriram R ab->soc_stats.hal_reo_error[dp->reo_dst_ring[ring_id].ring_id]++; 2444d5c65159SKalle Valo continue; 2445d5c65159SKalle Valo } 2446d5c65159SKalle Valo 24477395fb49SManikanta Pubbisetty rxcb->is_first_msdu = !!(desc.rx_msdu_info.info0 & 2448293cb583SJohn Crispin RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU); 24497395fb49SManikanta Pubbisetty rxcb->is_last_msdu = !!(desc.rx_msdu_info.info0 & 2450293cb583SJohn Crispin RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU); 24517395fb49SManikanta Pubbisetty rxcb->is_continuation = !!(desc.rx_msdu_info.info0 & 2452293cb583SJohn Crispin RX_MSDU_DESC_INFO0_MSDU_CONTINUATION); 2453d5c65159SKalle Valo rxcb->mac_id = mac_id; 2454acc79d98SSriram R rxcb->tid = FIELD_GET(HAL_REO_DEST_RING_INFO0_RX_QUEUE_NUM, 24557395fb49SManikanta Pubbisetty desc.info0); 2456acc79d98SSriram R 2457d5c65159SKalle Valo __skb_queue_tail(&msdu_list, msdu); 2458d5c65159SKalle Valo 2459acc79d98SSriram R if (total_msdu_reaped >= quota && !rxcb->is_continuation) { 2460d5c65159SKalle Valo done = true; 2461d5c65159SKalle Valo break; 2462d5c65159SKalle Valo } 2463d5c65159SKalle Valo } 2464d5c65159SKalle Valo 2465d5c65159SKalle Valo /* Hw might have updated the head pointer after we cached it. 2466d5c65159SKalle Valo * In this case, even though there are entries in the ring we'll 2467d5c65159SKalle Valo * get rx_desc NULL. Give the read another try with updated cached 2468d5c65159SKalle Valo * head pointer so that we can reap complete MPDU in the current 2469d5c65159SKalle Valo * rx processing. 2470d5c65159SKalle Valo */ 2471d5c65159SKalle Valo if (!done && ath11k_hal_srng_dst_num_free(ab, srng, true)) { 2472d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 2473d5c65159SKalle Valo goto try_again; 2474d5c65159SKalle Valo } 2475d5c65159SKalle Valo 2476d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 2477d5c65159SKalle Valo 2478d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 2479d5c65159SKalle Valo 2480acc79d98SSriram R if (!total_msdu_reaped) 2481d5c65159SKalle Valo goto exit; 2482d5c65159SKalle Valo 2483acc79d98SSriram R for (i = 0; i < ab->num_radios; i++) { 2484acc79d98SSriram R if (!num_buffs_reaped[i]) 2485d5c65159SKalle Valo continue; 2486acc79d98SSriram R 2487acc79d98SSriram R ar = ab->pdevs[i].ar; 2488acc79d98SSriram R rx_ring = &ar->dp.rx_refill_buf_ring; 2489acc79d98SSriram R 2490acc79d98SSriram R ath11k_dp_rxbufs_replenish(ab, i, rx_ring, num_buffs_reaped[i], 2491acc79d98SSriram R HAL_RX_BUF_RBM_SW3_BM, GFP_ATOMIC); 2492d5c65159SKalle Valo } 2493d5c65159SKalle Valo 2494acc79d98SSriram R ath11k_dp_rx_process_received_packets(ab, napi, &msdu_list, 2495acc79d98SSriram R "a, ring_id); 2496d5c65159SKalle Valo 2497d5c65159SKalle Valo exit: 2498d5c65159SKalle Valo return budget - quota; 2499d5c65159SKalle Valo } 2500d5c65159SKalle Valo 2501d5c65159SKalle Valo static void ath11k_dp_rx_update_peer_stats(struct ath11k_sta *arsta, 2502d5c65159SKalle Valo struct hal_rx_mon_ppdu_info *ppdu_info) 2503d5c65159SKalle Valo { 2504d5c65159SKalle Valo struct ath11k_rx_peer_stats *rx_stats = arsta->rx_stats; 2505d5c65159SKalle Valo u32 num_msdu; 2506d5c65159SKalle Valo 2507d5c65159SKalle Valo if (!rx_stats) 2508d5c65159SKalle Valo return; 2509d5c65159SKalle Valo 2510d5c65159SKalle Valo num_msdu = ppdu_info->tcp_msdu_count + ppdu_info->tcp_ack_msdu_count + 2511d5c65159SKalle Valo ppdu_info->udp_msdu_count + ppdu_info->other_msdu_count; 2512d5c65159SKalle Valo 2513d5c65159SKalle Valo rx_stats->num_msdu += num_msdu; 2514d5c65159SKalle Valo rx_stats->tcp_msdu_count += ppdu_info->tcp_msdu_count + 2515d5c65159SKalle Valo ppdu_info->tcp_ack_msdu_count; 2516d5c65159SKalle Valo rx_stats->udp_msdu_count += ppdu_info->udp_msdu_count; 2517d5c65159SKalle Valo rx_stats->other_msdu_count += ppdu_info->other_msdu_count; 2518d5c65159SKalle Valo 2519d5c65159SKalle Valo if (ppdu_info->preamble_type == HAL_RX_PREAMBLE_11A || 2520d5c65159SKalle Valo ppdu_info->preamble_type == HAL_RX_PREAMBLE_11B) { 2521d5c65159SKalle Valo ppdu_info->nss = 1; 2522d5c65159SKalle Valo ppdu_info->mcs = HAL_RX_MAX_MCS; 2523d5c65159SKalle Valo ppdu_info->tid = IEEE80211_NUM_TIDS; 2524d5c65159SKalle Valo } 2525d5c65159SKalle Valo 2526d5c65159SKalle Valo if (ppdu_info->nss > 0 && ppdu_info->nss <= HAL_RX_MAX_NSS) 2527d5c65159SKalle Valo rx_stats->nss_count[ppdu_info->nss - 1] += num_msdu; 2528d5c65159SKalle Valo 2529d5c65159SKalle Valo if (ppdu_info->mcs <= HAL_RX_MAX_MCS) 2530d5c65159SKalle Valo rx_stats->mcs_count[ppdu_info->mcs] += num_msdu; 2531d5c65159SKalle Valo 2532d5c65159SKalle Valo if (ppdu_info->gi < HAL_RX_GI_MAX) 2533d5c65159SKalle Valo rx_stats->gi_count[ppdu_info->gi] += num_msdu; 2534d5c65159SKalle Valo 2535d5c65159SKalle Valo if (ppdu_info->bw < HAL_RX_BW_MAX) 2536d5c65159SKalle Valo rx_stats->bw_count[ppdu_info->bw] += num_msdu; 2537d5c65159SKalle Valo 2538d5c65159SKalle Valo if (ppdu_info->ldpc < HAL_RX_SU_MU_CODING_MAX) 2539d5c65159SKalle Valo rx_stats->coding_count[ppdu_info->ldpc] += num_msdu; 2540d5c65159SKalle Valo 2541d5c65159SKalle Valo if (ppdu_info->tid <= IEEE80211_NUM_TIDS) 2542d5c65159SKalle Valo rx_stats->tid_count[ppdu_info->tid] += num_msdu; 2543d5c65159SKalle Valo 2544d5c65159SKalle Valo if (ppdu_info->preamble_type < HAL_RX_PREAMBLE_MAX) 2545d5c65159SKalle Valo rx_stats->pream_cnt[ppdu_info->preamble_type] += num_msdu; 2546d5c65159SKalle Valo 2547d5c65159SKalle Valo if (ppdu_info->reception_type < HAL_RX_RECEPTION_TYPE_MAX) 2548d5c65159SKalle Valo rx_stats->reception_type[ppdu_info->reception_type] += num_msdu; 2549d5c65159SKalle Valo 2550d5c65159SKalle Valo if (ppdu_info->is_stbc) 2551d5c65159SKalle Valo rx_stats->stbc_count += num_msdu; 2552d5c65159SKalle Valo 2553d5c65159SKalle Valo if (ppdu_info->beamformed) 2554d5c65159SKalle Valo rx_stats->beamformed_count += num_msdu; 2555d5c65159SKalle Valo 2556d5c65159SKalle Valo if (ppdu_info->num_mpdu_fcs_ok > 1) 2557d5c65159SKalle Valo rx_stats->ampdu_msdu_count += num_msdu; 2558d5c65159SKalle Valo else 2559d5c65159SKalle Valo rx_stats->non_ampdu_msdu_count += num_msdu; 2560d5c65159SKalle Valo 2561d5c65159SKalle Valo rx_stats->num_mpdu_fcs_ok += ppdu_info->num_mpdu_fcs_ok; 2562d5c65159SKalle Valo rx_stats->num_mpdu_fcs_err += ppdu_info->num_mpdu_fcs_err; 25636a0c3702SJohn Crispin rx_stats->dcm_count += ppdu_info->dcm; 25646a0c3702SJohn Crispin rx_stats->ru_alloc_cnt[ppdu_info->ru_alloc] += num_msdu; 2565d5c65159SKalle Valo 2566d5c65159SKalle Valo arsta->rssi_comb = ppdu_info->rssi_comb; 2567d5c65159SKalle Valo rx_stats->rx_duration += ppdu_info->rx_duration; 2568d5c65159SKalle Valo arsta->rx_duration = rx_stats->rx_duration; 2569d5c65159SKalle Valo } 2570d5c65159SKalle Valo 2571d5c65159SKalle Valo static struct sk_buff *ath11k_dp_rx_alloc_mon_status_buf(struct ath11k_base *ab, 2572d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring, 2573d5c65159SKalle Valo int *buf_id, gfp_t gfp) 2574d5c65159SKalle Valo { 2575d5c65159SKalle Valo struct sk_buff *skb; 2576d5c65159SKalle Valo dma_addr_t paddr; 2577d5c65159SKalle Valo 2578d5c65159SKalle Valo skb = dev_alloc_skb(DP_RX_BUFFER_SIZE + 2579d5c65159SKalle Valo DP_RX_BUFFER_ALIGN_SIZE); 2580d5c65159SKalle Valo 2581d5c65159SKalle Valo if (!skb) 2582d5c65159SKalle Valo goto fail_alloc_skb; 2583d5c65159SKalle Valo 2584d5c65159SKalle Valo if (!IS_ALIGNED((unsigned long)skb->data, 2585d5c65159SKalle Valo DP_RX_BUFFER_ALIGN_SIZE)) { 2586d5c65159SKalle Valo skb_pull(skb, PTR_ALIGN(skb->data, DP_RX_BUFFER_ALIGN_SIZE) - 2587d5c65159SKalle Valo skb->data); 2588d5c65159SKalle Valo } 2589d5c65159SKalle Valo 2590d5c65159SKalle Valo paddr = dma_map_single(ab->dev, skb->data, 2591d5c65159SKalle Valo skb->len + skb_tailroom(skb), 2592d5c65159SKalle Valo DMA_BIDIRECTIONAL); 2593d5c65159SKalle Valo if (unlikely(dma_mapping_error(ab->dev, paddr))) 2594d5c65159SKalle Valo goto fail_free_skb; 2595d5c65159SKalle Valo 2596d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 2597d5c65159SKalle Valo *buf_id = idr_alloc(&rx_ring->bufs_idr, skb, 0, 2598d5c65159SKalle Valo rx_ring->bufs_max, gfp); 2599d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 2600d5c65159SKalle Valo if (*buf_id < 0) 2601d5c65159SKalle Valo goto fail_dma_unmap; 2602d5c65159SKalle Valo 2603d5c65159SKalle Valo ATH11K_SKB_RXCB(skb)->paddr = paddr; 2604d5c65159SKalle Valo return skb; 2605d5c65159SKalle Valo 2606d5c65159SKalle Valo fail_dma_unmap: 2607d5c65159SKalle Valo dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb), 2608d5c65159SKalle Valo DMA_BIDIRECTIONAL); 2609d5c65159SKalle Valo fail_free_skb: 2610d5c65159SKalle Valo dev_kfree_skb_any(skb); 2611d5c65159SKalle Valo fail_alloc_skb: 2612d5c65159SKalle Valo return NULL; 2613d5c65159SKalle Valo } 2614d5c65159SKalle Valo 2615d5c65159SKalle Valo int ath11k_dp_rx_mon_status_bufs_replenish(struct ath11k_base *ab, int mac_id, 2616d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring, 2617d5c65159SKalle Valo int req_entries, 2618d5c65159SKalle Valo enum hal_rx_buf_return_buf_manager mgr, 2619d5c65159SKalle Valo gfp_t gfp) 2620d5c65159SKalle Valo { 2621d5c65159SKalle Valo struct hal_srng *srng; 2622d5c65159SKalle Valo u32 *desc; 2623d5c65159SKalle Valo struct sk_buff *skb; 2624d5c65159SKalle Valo int num_free; 2625d5c65159SKalle Valo int num_remain; 2626d5c65159SKalle Valo int buf_id; 2627d5c65159SKalle Valo u32 cookie; 2628d5c65159SKalle Valo dma_addr_t paddr; 2629d5c65159SKalle Valo 2630d5c65159SKalle Valo req_entries = min(req_entries, rx_ring->bufs_max); 2631d5c65159SKalle Valo 2632d5c65159SKalle Valo srng = &ab->hal.srng_list[rx_ring->refill_buf_ring.ring_id]; 2633d5c65159SKalle Valo 2634d5c65159SKalle Valo spin_lock_bh(&srng->lock); 2635d5c65159SKalle Valo 2636d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 2637d5c65159SKalle Valo 2638d5c65159SKalle Valo num_free = ath11k_hal_srng_src_num_free(ab, srng, true); 2639d5c65159SKalle Valo 2640d5c65159SKalle Valo req_entries = min(num_free, req_entries); 2641d5c65159SKalle Valo num_remain = req_entries; 2642d5c65159SKalle Valo 2643d5c65159SKalle Valo while (num_remain > 0) { 2644d5c65159SKalle Valo skb = ath11k_dp_rx_alloc_mon_status_buf(ab, rx_ring, 2645d5c65159SKalle Valo &buf_id, gfp); 2646d5c65159SKalle Valo if (!skb) 2647d5c65159SKalle Valo break; 2648d5c65159SKalle Valo paddr = ATH11K_SKB_RXCB(skb)->paddr; 2649d5c65159SKalle Valo 2650d5c65159SKalle Valo desc = ath11k_hal_srng_src_get_next_entry(ab, srng); 2651d5c65159SKalle Valo if (!desc) 2652d5c65159SKalle Valo goto fail_desc_get; 2653d5c65159SKalle Valo 2654d5c65159SKalle Valo cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, mac_id) | 2655d5c65159SKalle Valo FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); 2656d5c65159SKalle Valo 2657d5c65159SKalle Valo num_remain--; 2658d5c65159SKalle Valo 2659d5c65159SKalle Valo ath11k_hal_rx_buf_addr_info_set(desc, paddr, cookie, mgr); 2660d5c65159SKalle Valo } 2661d5c65159SKalle Valo 2662d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 2663d5c65159SKalle Valo 2664d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 2665d5c65159SKalle Valo 2666d5c65159SKalle Valo return req_entries - num_remain; 2667d5c65159SKalle Valo 2668d5c65159SKalle Valo fail_desc_get: 2669d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 2670d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 2671d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 2672d5c65159SKalle Valo dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb), 2673d5c65159SKalle Valo DMA_BIDIRECTIONAL); 2674d5c65159SKalle Valo dev_kfree_skb_any(skb); 2675d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 2676d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 2677d5c65159SKalle Valo 2678d5c65159SKalle Valo return req_entries - num_remain; 2679d5c65159SKalle Valo } 2680d5c65159SKalle Valo 2681d5c65159SKalle Valo static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id, 2682d5c65159SKalle Valo int *budget, struct sk_buff_head *skb_list) 2683d5c65159SKalle Valo { 2684d5c65159SKalle Valo struct ath11k *ar = ab->pdevs[mac_id].ar; 2685d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 2686d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring = &dp->rx_mon_status_refill_ring; 2687d5c65159SKalle Valo struct hal_srng *srng; 2688d5c65159SKalle Valo void *rx_mon_status_desc; 2689d5c65159SKalle Valo struct sk_buff *skb; 2690d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb; 2691d5c65159SKalle Valo struct hal_tlv_hdr *tlv; 2692d5c65159SKalle Valo u32 cookie; 2693d5c65159SKalle Valo int buf_id; 2694d5c65159SKalle Valo dma_addr_t paddr; 2695d5c65159SKalle Valo u8 rbm; 2696d5c65159SKalle Valo int num_buffs_reaped = 0; 2697d5c65159SKalle Valo 2698d5c65159SKalle Valo srng = &ab->hal.srng_list[rx_ring->refill_buf_ring.ring_id]; 2699d5c65159SKalle Valo 2700d5c65159SKalle Valo spin_lock_bh(&srng->lock); 2701d5c65159SKalle Valo 2702d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 2703d5c65159SKalle Valo while (*budget) { 2704d5c65159SKalle Valo *budget -= 1; 2705d5c65159SKalle Valo rx_mon_status_desc = 2706d5c65159SKalle Valo ath11k_hal_srng_src_peek(ab, srng); 2707d5c65159SKalle Valo if (!rx_mon_status_desc) 2708d5c65159SKalle Valo break; 2709d5c65159SKalle Valo 2710d5c65159SKalle Valo ath11k_hal_rx_buf_addr_info_get(rx_mon_status_desc, &paddr, 2711d5c65159SKalle Valo &cookie, &rbm); 2712d5c65159SKalle Valo if (paddr) { 2713d5c65159SKalle Valo buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, cookie); 2714d5c65159SKalle Valo 2715d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 2716d5c65159SKalle Valo skb = idr_find(&rx_ring->bufs_idr, buf_id); 2717d5c65159SKalle Valo if (!skb) { 2718d5c65159SKalle Valo ath11k_warn(ab, "rx monitor status with invalid buf_id %d\n", 2719d5c65159SKalle Valo buf_id); 2720d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 2721d5c65159SKalle Valo continue; 2722d5c65159SKalle Valo } 2723d5c65159SKalle Valo 2724d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 2725d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 2726d5c65159SKalle Valo 2727d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(skb); 2728d5c65159SKalle Valo 2729d5c65159SKalle Valo dma_sync_single_for_cpu(ab->dev, rxcb->paddr, 2730d5c65159SKalle Valo skb->len + skb_tailroom(skb), 2731d5c65159SKalle Valo DMA_FROM_DEVICE); 2732d5c65159SKalle Valo 2733d5c65159SKalle Valo dma_unmap_single(ab->dev, rxcb->paddr, 2734d5c65159SKalle Valo skb->len + skb_tailroom(skb), 2735d5c65159SKalle Valo DMA_BIDIRECTIONAL); 2736d5c65159SKalle Valo 2737d5c65159SKalle Valo tlv = (struct hal_tlv_hdr *)skb->data; 2738d5c65159SKalle Valo if (FIELD_GET(HAL_TLV_HDR_TAG, tlv->tl) != 2739d5c65159SKalle Valo HAL_RX_STATUS_BUFFER_DONE) { 2740d5c65159SKalle Valo ath11k_hal_srng_src_get_next_entry(ab, srng); 2741d5c65159SKalle Valo continue; 2742d5c65159SKalle Valo } 2743d5c65159SKalle Valo 2744d5c65159SKalle Valo __skb_queue_tail(skb_list, skb); 2745d5c65159SKalle Valo } 2746d5c65159SKalle Valo 2747d5c65159SKalle Valo skb = ath11k_dp_rx_alloc_mon_status_buf(ab, rx_ring, 2748d5c65159SKalle Valo &buf_id, GFP_ATOMIC); 2749d5c65159SKalle Valo 2750d5c65159SKalle Valo if (!skb) { 2751d5c65159SKalle Valo ath11k_hal_rx_buf_addr_info_set(rx_mon_status_desc, 0, 0, 2752d5c65159SKalle Valo HAL_RX_BUF_RBM_SW3_BM); 2753d5c65159SKalle Valo num_buffs_reaped++; 2754d5c65159SKalle Valo break; 2755d5c65159SKalle Valo } 2756d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(skb); 2757d5c65159SKalle Valo 2758d5c65159SKalle Valo cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, mac_id) | 2759d5c65159SKalle Valo FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); 2760d5c65159SKalle Valo 2761d5c65159SKalle Valo ath11k_hal_rx_buf_addr_info_set(rx_mon_status_desc, rxcb->paddr, 2762d5c65159SKalle Valo cookie, HAL_RX_BUF_RBM_SW3_BM); 2763d5c65159SKalle Valo ath11k_hal_srng_src_get_next_entry(ab, srng); 2764d5c65159SKalle Valo num_buffs_reaped++; 2765d5c65159SKalle Valo } 2766d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 2767d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 2768d5c65159SKalle Valo 2769d5c65159SKalle Valo return num_buffs_reaped; 2770d5c65159SKalle Valo } 2771d5c65159SKalle Valo 2772d5c65159SKalle Valo int ath11k_dp_rx_process_mon_status(struct ath11k_base *ab, int mac_id, 2773d5c65159SKalle Valo struct napi_struct *napi, int budget) 2774d5c65159SKalle Valo { 2775d5c65159SKalle Valo struct ath11k *ar = ab->pdevs[mac_id].ar; 2776d5c65159SKalle Valo enum hal_rx_mon_status hal_status; 2777d5c65159SKalle Valo struct sk_buff *skb; 2778d5c65159SKalle Valo struct sk_buff_head skb_list; 2779d5c65159SKalle Valo struct hal_rx_mon_ppdu_info ppdu_info; 2780d5c65159SKalle Valo struct ath11k_peer *peer; 2781d5c65159SKalle Valo struct ath11k_sta *arsta; 2782d5c65159SKalle Valo int num_buffs_reaped = 0; 2783d5c65159SKalle Valo 2784d5c65159SKalle Valo __skb_queue_head_init(&skb_list); 2785d5c65159SKalle Valo 2786d5c65159SKalle Valo num_buffs_reaped = ath11k_dp_rx_reap_mon_status_ring(ab, mac_id, &budget, 2787d5c65159SKalle Valo &skb_list); 2788d5c65159SKalle Valo if (!num_buffs_reaped) 2789d5c65159SKalle Valo goto exit; 2790d5c65159SKalle Valo 2791d5c65159SKalle Valo while ((skb = __skb_dequeue(&skb_list))) { 2792d5c65159SKalle Valo memset(&ppdu_info, 0, sizeof(ppdu_info)); 2793d5c65159SKalle Valo ppdu_info.peer_id = HAL_INVALID_PEERID; 2794d5c65159SKalle Valo 2795d5c65159SKalle Valo if (ath11k_debug_is_pktlog_rx_stats_enabled(ar)) 2796d5c65159SKalle Valo trace_ath11k_htt_rxdesc(ar, skb->data, DP_RX_BUFFER_SIZE); 2797d5c65159SKalle Valo 2798d5c65159SKalle Valo hal_status = ath11k_hal_rx_parse_mon_status(ab, &ppdu_info, skb); 2799d5c65159SKalle Valo 2800d5c65159SKalle Valo if (ppdu_info.peer_id == HAL_INVALID_PEERID || 2801d5c65159SKalle Valo hal_status != HAL_RX_MON_STATUS_PPDU_DONE) { 2802d5c65159SKalle Valo dev_kfree_skb_any(skb); 2803d5c65159SKalle Valo continue; 2804d5c65159SKalle Valo } 2805d5c65159SKalle Valo 2806d5c65159SKalle Valo rcu_read_lock(); 2807d5c65159SKalle Valo spin_lock_bh(&ab->base_lock); 2808d5c65159SKalle Valo peer = ath11k_peer_find_by_id(ab, ppdu_info.peer_id); 2809d5c65159SKalle Valo 2810d5c65159SKalle Valo if (!peer || !peer->sta) { 28112dab7d22SJohn Crispin ath11k_dbg(ab, ATH11K_DBG_DATA, 28122dab7d22SJohn Crispin "failed to find the peer with peer_id %d\n", 2813d5c65159SKalle Valo ppdu_info.peer_id); 2814d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 2815d5c65159SKalle Valo rcu_read_unlock(); 2816d5c65159SKalle Valo dev_kfree_skb_any(skb); 2817d5c65159SKalle Valo continue; 2818d5c65159SKalle Valo } 2819d5c65159SKalle Valo 2820d5c65159SKalle Valo arsta = (struct ath11k_sta *)peer->sta->drv_priv; 2821d5c65159SKalle Valo ath11k_dp_rx_update_peer_stats(arsta, &ppdu_info); 2822d5c65159SKalle Valo 2823d5c65159SKalle Valo if (ath11k_debug_is_pktlog_peer_valid(ar, peer->addr)) 2824d5c65159SKalle Valo trace_ath11k_htt_rxdesc(ar, skb->data, DP_RX_BUFFER_SIZE); 2825d5c65159SKalle Valo 2826d5c65159SKalle Valo spin_unlock_bh(&ab->base_lock); 2827d5c65159SKalle Valo rcu_read_unlock(); 2828d5c65159SKalle Valo 2829d5c65159SKalle Valo dev_kfree_skb_any(skb); 2830d5c65159SKalle Valo } 2831d5c65159SKalle Valo exit: 2832d5c65159SKalle Valo return num_buffs_reaped; 2833d5c65159SKalle Valo } 2834d5c65159SKalle Valo 2835243874c6SManikanta Pubbisetty static void ath11k_dp_rx_frag_timer(struct timer_list *timer) 2836d5c65159SKalle Valo { 2837243874c6SManikanta Pubbisetty struct dp_rx_tid *rx_tid = from_timer(rx_tid, timer, frag_timer); 2838d5c65159SKalle Valo 2839243874c6SManikanta Pubbisetty spin_lock_bh(&rx_tid->ab->base_lock); 2840243874c6SManikanta Pubbisetty if (rx_tid->last_frag_no && 2841243874c6SManikanta Pubbisetty rx_tid->rx_frag_bitmap == GENMASK(rx_tid->last_frag_no, 0)) { 2842243874c6SManikanta Pubbisetty spin_unlock_bh(&rx_tid->ab->base_lock); 2843243874c6SManikanta Pubbisetty return; 2844243874c6SManikanta Pubbisetty } 2845243874c6SManikanta Pubbisetty ath11k_dp_rx_frags_cleanup(rx_tid, true); 2846243874c6SManikanta Pubbisetty spin_unlock_bh(&rx_tid->ab->base_lock); 2847d5c65159SKalle Valo } 2848d5c65159SKalle Valo 2849243874c6SManikanta Pubbisetty int ath11k_peer_rx_frag_setup(struct ath11k *ar, const u8 *peer_mac, int vdev_id) 2850243874c6SManikanta Pubbisetty { 2851243874c6SManikanta Pubbisetty struct ath11k_base *ab = ar->ab; 2852243874c6SManikanta Pubbisetty struct crypto_shash *tfm; 2853243874c6SManikanta Pubbisetty struct ath11k_peer *peer; 2854243874c6SManikanta Pubbisetty struct dp_rx_tid *rx_tid; 2855243874c6SManikanta Pubbisetty int i; 2856d5c65159SKalle Valo 2857243874c6SManikanta Pubbisetty tfm = crypto_alloc_shash("michael_mic", 0, 0); 2858243874c6SManikanta Pubbisetty if (IS_ERR(tfm)) 2859243874c6SManikanta Pubbisetty return PTR_ERR(tfm); 2860d5c65159SKalle Valo 2861243874c6SManikanta Pubbisetty spin_lock_bh(&ab->base_lock); 2862d5c65159SKalle Valo 2863243874c6SManikanta Pubbisetty peer = ath11k_peer_find(ab, vdev_id, peer_mac); 2864243874c6SManikanta Pubbisetty if (!peer) { 2865243874c6SManikanta Pubbisetty ath11k_warn(ab, "failed to find the peer to set up fragment info\n"); 2866243874c6SManikanta Pubbisetty spin_unlock_bh(&ab->base_lock); 2867243874c6SManikanta Pubbisetty return -ENOENT; 2868243874c6SManikanta Pubbisetty } 2869243874c6SManikanta Pubbisetty 2870243874c6SManikanta Pubbisetty for (i = 0; i <= IEEE80211_NUM_TIDS; i++) { 2871243874c6SManikanta Pubbisetty rx_tid = &peer->rx_tid[i]; 2872243874c6SManikanta Pubbisetty rx_tid->ab = ab; 2873243874c6SManikanta Pubbisetty timer_setup(&rx_tid->frag_timer, ath11k_dp_rx_frag_timer, 0); 2874243874c6SManikanta Pubbisetty skb_queue_head_init(&rx_tid->rx_frags); 2875243874c6SManikanta Pubbisetty } 2876243874c6SManikanta Pubbisetty 2877243874c6SManikanta Pubbisetty peer->tfm_mmic = tfm; 2878243874c6SManikanta Pubbisetty spin_unlock_bh(&ab->base_lock); 2879243874c6SManikanta Pubbisetty 2880243874c6SManikanta Pubbisetty return 0; 2881243874c6SManikanta Pubbisetty } 2882243874c6SManikanta Pubbisetty 2883243874c6SManikanta Pubbisetty static int ath11k_dp_rx_h_michael_mic(struct crypto_shash *tfm, u8 *key, 2884243874c6SManikanta Pubbisetty struct ieee80211_hdr *hdr, u8 *data, 2885243874c6SManikanta Pubbisetty size_t data_len, u8 *mic) 2886243874c6SManikanta Pubbisetty { 2887243874c6SManikanta Pubbisetty SHASH_DESC_ON_STACK(desc, tfm); 2888243874c6SManikanta Pubbisetty u8 mic_hdr[16] = {0}; 2889243874c6SManikanta Pubbisetty u8 tid = 0; 2890243874c6SManikanta Pubbisetty int ret; 2891243874c6SManikanta Pubbisetty 2892243874c6SManikanta Pubbisetty if (!tfm) 2893243874c6SManikanta Pubbisetty return -EINVAL; 2894243874c6SManikanta Pubbisetty 2895243874c6SManikanta Pubbisetty desc->tfm = tfm; 2896243874c6SManikanta Pubbisetty 2897243874c6SManikanta Pubbisetty ret = crypto_shash_setkey(tfm, key, 8); 2898243874c6SManikanta Pubbisetty if (ret) 2899243874c6SManikanta Pubbisetty goto out; 2900243874c6SManikanta Pubbisetty 2901243874c6SManikanta Pubbisetty ret = crypto_shash_init(desc); 2902243874c6SManikanta Pubbisetty if (ret) 2903243874c6SManikanta Pubbisetty goto out; 2904243874c6SManikanta Pubbisetty 2905243874c6SManikanta Pubbisetty /* TKIP MIC header */ 2906243874c6SManikanta Pubbisetty memcpy(mic_hdr, ieee80211_get_DA(hdr), ETH_ALEN); 2907243874c6SManikanta Pubbisetty memcpy(mic_hdr + ETH_ALEN, ieee80211_get_SA(hdr), ETH_ALEN); 2908243874c6SManikanta Pubbisetty if (ieee80211_is_data_qos(hdr->frame_control)) 2909243874c6SManikanta Pubbisetty tid = ieee80211_get_tid(hdr); 2910243874c6SManikanta Pubbisetty mic_hdr[12] = tid; 2911243874c6SManikanta Pubbisetty 2912243874c6SManikanta Pubbisetty ret = crypto_shash_update(desc, mic_hdr, 16); 2913243874c6SManikanta Pubbisetty if (ret) 2914243874c6SManikanta Pubbisetty goto out; 2915243874c6SManikanta Pubbisetty ret = crypto_shash_update(desc, data, data_len); 2916243874c6SManikanta Pubbisetty if (ret) 2917243874c6SManikanta Pubbisetty goto out; 2918243874c6SManikanta Pubbisetty ret = crypto_shash_final(desc, mic); 2919243874c6SManikanta Pubbisetty out: 2920243874c6SManikanta Pubbisetty shash_desc_zero(desc); 2921d5c65159SKalle Valo return ret; 2922d5c65159SKalle Valo } 2923d5c65159SKalle Valo 2924243874c6SManikanta Pubbisetty static int ath11k_dp_rx_h_verify_tkip_mic(struct ath11k *ar, struct ath11k_peer *peer, 2925243874c6SManikanta Pubbisetty struct sk_buff *msdu) 2926d5c65159SKalle Valo { 2927243874c6SManikanta Pubbisetty struct hal_rx_desc *rx_desc = (struct hal_rx_desc *)msdu->data; 2928243874c6SManikanta Pubbisetty struct ieee80211_rx_status *rxs = IEEE80211_SKB_RXCB(msdu); 2929243874c6SManikanta Pubbisetty struct ieee80211_key_conf *key_conf; 2930243874c6SManikanta Pubbisetty struct ieee80211_hdr *hdr; 2931243874c6SManikanta Pubbisetty u8 mic[IEEE80211_CCMP_MIC_LEN]; 2932243874c6SManikanta Pubbisetty int head_len, tail_len, ret; 2933243874c6SManikanta Pubbisetty size_t data_len; 2934243874c6SManikanta Pubbisetty u32 hdr_len; 2935243874c6SManikanta Pubbisetty u8 *key, *data; 2936243874c6SManikanta Pubbisetty u8 key_idx; 2937d5c65159SKalle Valo 2938243874c6SManikanta Pubbisetty if (ath11k_dp_rx_h_mpdu_start_enctype(rx_desc) != HAL_ENCRYPT_TYPE_TKIP_MIC) 2939243874c6SManikanta Pubbisetty return 0; 2940d5c65159SKalle Valo 2941243874c6SManikanta Pubbisetty hdr = (struct ieee80211_hdr *)(msdu->data + HAL_RX_DESC_SIZE); 2942243874c6SManikanta Pubbisetty hdr_len = ieee80211_hdrlen(hdr->frame_control); 2943243874c6SManikanta Pubbisetty head_len = hdr_len + HAL_RX_DESC_SIZE + IEEE80211_TKIP_IV_LEN; 2944243874c6SManikanta Pubbisetty tail_len = IEEE80211_CCMP_MIC_LEN + IEEE80211_TKIP_ICV_LEN + FCS_LEN; 2945d5c65159SKalle Valo 2946243874c6SManikanta Pubbisetty if (!is_multicast_ether_addr(hdr->addr1)) 2947243874c6SManikanta Pubbisetty key_idx = peer->ucast_keyidx; 2948243874c6SManikanta Pubbisetty else 2949243874c6SManikanta Pubbisetty key_idx = peer->mcast_keyidx; 2950d5c65159SKalle Valo 2951243874c6SManikanta Pubbisetty key_conf = peer->keys[key_idx]; 2952d5c65159SKalle Valo 2953243874c6SManikanta Pubbisetty data = msdu->data + head_len; 2954243874c6SManikanta Pubbisetty data_len = msdu->len - head_len - tail_len; 2955243874c6SManikanta Pubbisetty key = &key_conf->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]; 2956d5c65159SKalle Valo 2957243874c6SManikanta Pubbisetty ret = ath11k_dp_rx_h_michael_mic(peer->tfm_mmic, key, hdr, data, data_len, mic); 2958243874c6SManikanta Pubbisetty if (ret || memcmp(mic, data + data_len, IEEE80211_CCMP_MIC_LEN)) 2959243874c6SManikanta Pubbisetty goto mic_fail; 2960d5c65159SKalle Valo 2961243874c6SManikanta Pubbisetty return 0; 2962243874c6SManikanta Pubbisetty 2963243874c6SManikanta Pubbisetty mic_fail: 2964243874c6SManikanta Pubbisetty (ATH11K_SKB_RXCB(msdu))->is_first_msdu = 1; 2965243874c6SManikanta Pubbisetty (ATH11K_SKB_RXCB(msdu))->is_last_msdu = 1; 2966243874c6SManikanta Pubbisetty 2967243874c6SManikanta Pubbisetty rxs->flag |= RX_FLAG_MMIC_ERROR | RX_FLAG_MMIC_STRIPPED | 2968243874c6SManikanta Pubbisetty RX_FLAG_IV_STRIPPED | RX_FLAG_DECRYPTED; 2969243874c6SManikanta Pubbisetty skb_pull(msdu, HAL_RX_DESC_SIZE); 2970243874c6SManikanta Pubbisetty 2971243874c6SManikanta Pubbisetty ath11k_dp_rx_h_ppdu(ar, rx_desc, rxs); 2972243874c6SManikanta Pubbisetty ath11k_dp_rx_h_undecap(ar, msdu, rx_desc, 2973243874c6SManikanta Pubbisetty HAL_ENCRYPT_TYPE_TKIP_MIC, rxs, true); 2974243874c6SManikanta Pubbisetty ieee80211_rx(ar->hw, msdu); 2975243874c6SManikanta Pubbisetty return -EINVAL; 2976d5c65159SKalle Valo } 2977d5c65159SKalle Valo 2978243874c6SManikanta Pubbisetty static void ath11k_dp_rx_h_undecap_frag(struct ath11k *ar, struct sk_buff *msdu, 2979243874c6SManikanta Pubbisetty enum hal_encrypt_type enctype, u32 flags) 2980243874c6SManikanta Pubbisetty { 2981243874c6SManikanta Pubbisetty struct ieee80211_hdr *hdr; 2982243874c6SManikanta Pubbisetty size_t hdr_len; 2983243874c6SManikanta Pubbisetty size_t crypto_len; 2984d5c65159SKalle Valo 2985243874c6SManikanta Pubbisetty if (!flags) 2986243874c6SManikanta Pubbisetty return; 2987d5c65159SKalle Valo 2988243874c6SManikanta Pubbisetty hdr = (struct ieee80211_hdr *)(msdu->data + HAL_RX_DESC_SIZE); 2989243874c6SManikanta Pubbisetty 2990243874c6SManikanta Pubbisetty if (flags & RX_FLAG_MIC_STRIPPED) 2991d5c65159SKalle Valo skb_trim(msdu, msdu->len - 2992d5c65159SKalle Valo ath11k_dp_rx_crypto_mic_len(ar, enctype)); 2993243874c6SManikanta Pubbisetty 2994243874c6SManikanta Pubbisetty if (flags & RX_FLAG_ICV_STRIPPED) 2995243874c6SManikanta Pubbisetty skb_trim(msdu, msdu->len - 2996243874c6SManikanta Pubbisetty ath11k_dp_rx_crypto_icv_len(ar, enctype)); 2997243874c6SManikanta Pubbisetty 2998243874c6SManikanta Pubbisetty if (flags & RX_FLAG_IV_STRIPPED) { 2999243874c6SManikanta Pubbisetty hdr_len = ieee80211_hdrlen(hdr->frame_control); 3000243874c6SManikanta Pubbisetty crypto_len = ath11k_dp_rx_crypto_param_len(ar, enctype); 3001243874c6SManikanta Pubbisetty 3002243874c6SManikanta Pubbisetty memmove((void *)msdu->data + HAL_RX_DESC_SIZE + crypto_len, 3003243874c6SManikanta Pubbisetty (void *)msdu->data + HAL_RX_DESC_SIZE, hdr_len); 3004243874c6SManikanta Pubbisetty skb_pull(msdu, crypto_len); 3005d5c65159SKalle Valo } 3006d5c65159SKalle Valo } 3007d5c65159SKalle Valo 3008243874c6SManikanta Pubbisetty static int ath11k_dp_rx_h_defrag(struct ath11k *ar, 3009243874c6SManikanta Pubbisetty struct ath11k_peer *peer, 3010243874c6SManikanta Pubbisetty struct dp_rx_tid *rx_tid, 3011243874c6SManikanta Pubbisetty struct sk_buff **defrag_skb) 3012243874c6SManikanta Pubbisetty { 3013243874c6SManikanta Pubbisetty struct hal_rx_desc *rx_desc; 3014243874c6SManikanta Pubbisetty struct sk_buff *skb, *first_frag, *last_frag; 3015243874c6SManikanta Pubbisetty struct ieee80211_hdr *hdr; 3016243874c6SManikanta Pubbisetty enum hal_encrypt_type enctype; 3017243874c6SManikanta Pubbisetty bool is_decrypted = false; 3018243874c6SManikanta Pubbisetty int msdu_len = 0; 3019243874c6SManikanta Pubbisetty int extra_space; 3020243874c6SManikanta Pubbisetty u32 flags; 3021243874c6SManikanta Pubbisetty 3022243874c6SManikanta Pubbisetty first_frag = skb_peek(&rx_tid->rx_frags); 3023243874c6SManikanta Pubbisetty last_frag = skb_peek_tail(&rx_tid->rx_frags); 3024243874c6SManikanta Pubbisetty 3025243874c6SManikanta Pubbisetty skb_queue_walk(&rx_tid->rx_frags, skb) { 3026243874c6SManikanta Pubbisetty flags = 0; 3027243874c6SManikanta Pubbisetty rx_desc = (struct hal_rx_desc *)skb->data; 3028243874c6SManikanta Pubbisetty hdr = (struct ieee80211_hdr *)(skb->data + HAL_RX_DESC_SIZE); 3029243874c6SManikanta Pubbisetty 3030243874c6SManikanta Pubbisetty enctype = ath11k_dp_rx_h_mpdu_start_enctype(rx_desc); 3031243874c6SManikanta Pubbisetty if (enctype != HAL_ENCRYPT_TYPE_OPEN) 3032243874c6SManikanta Pubbisetty is_decrypted = ath11k_dp_rx_h_attn_is_decrypted(rx_desc); 3033243874c6SManikanta Pubbisetty 3034243874c6SManikanta Pubbisetty if (is_decrypted) { 3035243874c6SManikanta Pubbisetty if (skb != first_frag) 3036243874c6SManikanta Pubbisetty flags |= RX_FLAG_IV_STRIPPED; 3037243874c6SManikanta Pubbisetty if (skb != last_frag) 3038243874c6SManikanta Pubbisetty flags |= RX_FLAG_ICV_STRIPPED | 3039243874c6SManikanta Pubbisetty RX_FLAG_MIC_STRIPPED; 3040243874c6SManikanta Pubbisetty } 3041243874c6SManikanta Pubbisetty 3042243874c6SManikanta Pubbisetty /* RX fragments are always raw packets */ 3043243874c6SManikanta Pubbisetty if (skb != last_frag) 3044243874c6SManikanta Pubbisetty skb_trim(skb, skb->len - FCS_LEN); 3045243874c6SManikanta Pubbisetty ath11k_dp_rx_h_undecap_frag(ar, skb, enctype, flags); 3046243874c6SManikanta Pubbisetty 3047243874c6SManikanta Pubbisetty if (skb != first_frag) 3048243874c6SManikanta Pubbisetty skb_pull(skb, HAL_RX_DESC_SIZE + 3049243874c6SManikanta Pubbisetty ieee80211_hdrlen(hdr->frame_control)); 3050243874c6SManikanta Pubbisetty msdu_len += skb->len; 3051243874c6SManikanta Pubbisetty } 3052243874c6SManikanta Pubbisetty 3053243874c6SManikanta Pubbisetty extra_space = msdu_len - (DP_RX_BUFFER_SIZE + skb_tailroom(first_frag)); 3054243874c6SManikanta Pubbisetty if (extra_space > 0 && 3055243874c6SManikanta Pubbisetty (pskb_expand_head(first_frag, 0, extra_space, GFP_ATOMIC) < 0)) 3056243874c6SManikanta Pubbisetty return -ENOMEM; 3057243874c6SManikanta Pubbisetty 3058243874c6SManikanta Pubbisetty __skb_unlink(first_frag, &rx_tid->rx_frags); 3059243874c6SManikanta Pubbisetty while ((skb = __skb_dequeue(&rx_tid->rx_frags))) { 3060243874c6SManikanta Pubbisetty skb_put_data(first_frag, skb->data, skb->len); 3061243874c6SManikanta Pubbisetty dev_kfree_skb_any(skb); 3062243874c6SManikanta Pubbisetty } 3063243874c6SManikanta Pubbisetty 3064243874c6SManikanta Pubbisetty hdr = (struct ieee80211_hdr *)(first_frag->data + HAL_RX_DESC_SIZE); 3065243874c6SManikanta Pubbisetty hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_MOREFRAGS); 3066243874c6SManikanta Pubbisetty ATH11K_SKB_RXCB(first_frag)->is_frag = 1; 3067243874c6SManikanta Pubbisetty 3068243874c6SManikanta Pubbisetty if (ath11k_dp_rx_h_verify_tkip_mic(ar, peer, first_frag)) 3069243874c6SManikanta Pubbisetty first_frag = NULL; 3070243874c6SManikanta Pubbisetty 3071243874c6SManikanta Pubbisetty *defrag_skb = first_frag; 3072243874c6SManikanta Pubbisetty return 0; 3073243874c6SManikanta Pubbisetty } 3074243874c6SManikanta Pubbisetty 3075243874c6SManikanta Pubbisetty static int ath11k_dp_rx_h_defrag_reo_reinject(struct ath11k *ar, struct dp_rx_tid *rx_tid, 3076243874c6SManikanta Pubbisetty struct sk_buff *defrag_skb) 3077243874c6SManikanta Pubbisetty { 3078243874c6SManikanta Pubbisetty struct ath11k_base *ab = ar->ab; 3079243874c6SManikanta Pubbisetty struct ath11k_pdev_dp *dp = &ar->dp; 3080243874c6SManikanta Pubbisetty struct dp_rxdma_ring *rx_refill_ring = &dp->rx_refill_buf_ring; 3081243874c6SManikanta Pubbisetty struct hal_rx_desc *rx_desc = (struct hal_rx_desc *)defrag_skb->data; 3082243874c6SManikanta Pubbisetty struct hal_reo_entrance_ring *reo_ent_ring; 3083243874c6SManikanta Pubbisetty struct hal_reo_dest_ring *reo_dest_ring; 3084243874c6SManikanta Pubbisetty struct dp_link_desc_bank *link_desc_banks; 3085243874c6SManikanta Pubbisetty struct hal_rx_msdu_link *msdu_link; 3086243874c6SManikanta Pubbisetty struct hal_rx_msdu_details *msdu0; 3087243874c6SManikanta Pubbisetty struct hal_srng *srng; 3088243874c6SManikanta Pubbisetty dma_addr_t paddr; 3089243874c6SManikanta Pubbisetty u32 desc_bank, msdu_info, mpdu_info; 3090243874c6SManikanta Pubbisetty u32 dst_idx, cookie; 3091243874c6SManikanta Pubbisetty u32 *msdu_len_offset; 3092243874c6SManikanta Pubbisetty int ret, buf_id; 3093243874c6SManikanta Pubbisetty 3094243874c6SManikanta Pubbisetty link_desc_banks = ab->dp.link_desc_banks; 3095243874c6SManikanta Pubbisetty reo_dest_ring = rx_tid->dst_ring_desc; 3096243874c6SManikanta Pubbisetty 3097243874c6SManikanta Pubbisetty ath11k_hal_rx_reo_ent_paddr_get(ab, reo_dest_ring, &paddr, &desc_bank); 3098243874c6SManikanta Pubbisetty msdu_link = (struct hal_rx_msdu_link *)(link_desc_banks[desc_bank].vaddr + 3099243874c6SManikanta Pubbisetty (paddr - link_desc_banks[desc_bank].paddr)); 3100243874c6SManikanta Pubbisetty msdu0 = &msdu_link->msdu_link[0]; 3101243874c6SManikanta Pubbisetty dst_idx = FIELD_GET(RX_MSDU_DESC_INFO0_REO_DEST_IND, msdu0->rx_msdu_info.info0); 3102243874c6SManikanta Pubbisetty memset(msdu0, 0, sizeof(*msdu0)); 3103243874c6SManikanta Pubbisetty 3104243874c6SManikanta Pubbisetty msdu_info = FIELD_PREP(RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU, 1) | 3105243874c6SManikanta Pubbisetty FIELD_PREP(RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU, 1) | 3106243874c6SManikanta Pubbisetty FIELD_PREP(RX_MSDU_DESC_INFO0_MSDU_CONTINUATION, 0) | 3107243874c6SManikanta Pubbisetty FIELD_PREP(RX_MSDU_DESC_INFO0_MSDU_LENGTH, 3108243874c6SManikanta Pubbisetty defrag_skb->len - HAL_RX_DESC_SIZE) | 3109243874c6SManikanta Pubbisetty FIELD_PREP(RX_MSDU_DESC_INFO0_REO_DEST_IND, dst_idx) | 3110243874c6SManikanta Pubbisetty FIELD_PREP(RX_MSDU_DESC_INFO0_VALID_SA, 1) | 3111243874c6SManikanta Pubbisetty FIELD_PREP(RX_MSDU_DESC_INFO0_VALID_DA, 1); 3112243874c6SManikanta Pubbisetty msdu0->rx_msdu_info.info0 = msdu_info; 3113243874c6SManikanta Pubbisetty 3114243874c6SManikanta Pubbisetty /* change msdu len in hal rx desc */ 3115243874c6SManikanta Pubbisetty msdu_len_offset = (u32 *)&rx_desc->msdu_start; 3116243874c6SManikanta Pubbisetty *msdu_len_offset &= ~(RX_MSDU_START_INFO1_MSDU_LENGTH); 3117243874c6SManikanta Pubbisetty *msdu_len_offset |= defrag_skb->len - HAL_RX_DESC_SIZE; 3118243874c6SManikanta Pubbisetty 3119243874c6SManikanta Pubbisetty paddr = dma_map_single(ab->dev, defrag_skb->data, 3120243874c6SManikanta Pubbisetty defrag_skb->len + skb_tailroom(defrag_skb), 3121243874c6SManikanta Pubbisetty DMA_FROM_DEVICE); 3122243874c6SManikanta Pubbisetty if (dma_mapping_error(ab->dev, paddr)) 3123243874c6SManikanta Pubbisetty return -ENOMEM; 3124243874c6SManikanta Pubbisetty 3125243874c6SManikanta Pubbisetty spin_lock_bh(&rx_refill_ring->idr_lock); 3126243874c6SManikanta Pubbisetty buf_id = idr_alloc(&rx_refill_ring->bufs_idr, defrag_skb, 0, 3127243874c6SManikanta Pubbisetty rx_refill_ring->bufs_max * 3, GFP_ATOMIC); 3128243874c6SManikanta Pubbisetty spin_unlock_bh(&rx_refill_ring->idr_lock); 3129243874c6SManikanta Pubbisetty if (buf_id < 0) { 3130243874c6SManikanta Pubbisetty ret = -ENOMEM; 3131243874c6SManikanta Pubbisetty goto err_unmap_dma; 3132243874c6SManikanta Pubbisetty } 3133243874c6SManikanta Pubbisetty 3134243874c6SManikanta Pubbisetty ATH11K_SKB_RXCB(defrag_skb)->paddr = paddr; 3135243874c6SManikanta Pubbisetty cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, dp->mac_id) | 3136243874c6SManikanta Pubbisetty FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); 3137243874c6SManikanta Pubbisetty 3138243874c6SManikanta Pubbisetty ath11k_hal_rx_buf_addr_info_set(msdu0, paddr, cookie, HAL_RX_BUF_RBM_SW3_BM); 3139243874c6SManikanta Pubbisetty 3140243874c6SManikanta Pubbisetty /* Fill mpdu details into reo entrace ring */ 3141243874c6SManikanta Pubbisetty srng = &ab->hal.srng_list[ab->dp.reo_reinject_ring.ring_id]; 3142243874c6SManikanta Pubbisetty 3143243874c6SManikanta Pubbisetty spin_lock_bh(&srng->lock); 3144243874c6SManikanta Pubbisetty ath11k_hal_srng_access_begin(ab, srng); 3145243874c6SManikanta Pubbisetty 3146243874c6SManikanta Pubbisetty reo_ent_ring = (struct hal_reo_entrance_ring *) 3147243874c6SManikanta Pubbisetty ath11k_hal_srng_src_get_next_entry(ab, srng); 3148243874c6SManikanta Pubbisetty if (!reo_ent_ring) { 3149243874c6SManikanta Pubbisetty ath11k_hal_srng_access_end(ab, srng); 3150243874c6SManikanta Pubbisetty spin_unlock_bh(&srng->lock); 3151243874c6SManikanta Pubbisetty ret = -ENOSPC; 3152243874c6SManikanta Pubbisetty goto err_free_idr; 3153243874c6SManikanta Pubbisetty } 3154243874c6SManikanta Pubbisetty memset(reo_ent_ring, 0, sizeof(*reo_ent_ring)); 3155243874c6SManikanta Pubbisetty 3156243874c6SManikanta Pubbisetty ath11k_hal_rx_reo_ent_paddr_get(ab, reo_dest_ring, &paddr, &desc_bank); 3157243874c6SManikanta Pubbisetty ath11k_hal_rx_buf_addr_info_set(reo_ent_ring, paddr, desc_bank, 3158243874c6SManikanta Pubbisetty HAL_RX_BUF_RBM_WBM_IDLE_DESC_LIST); 3159243874c6SManikanta Pubbisetty 3160243874c6SManikanta Pubbisetty mpdu_info = FIELD_PREP(RX_MPDU_DESC_INFO0_MSDU_COUNT, 1) | 3161243874c6SManikanta Pubbisetty FIELD_PREP(RX_MPDU_DESC_INFO0_SEQ_NUM, rx_tid->cur_sn) | 3162243874c6SManikanta Pubbisetty FIELD_PREP(RX_MPDU_DESC_INFO0_FRAG_FLAG, 0) | 3163243874c6SManikanta Pubbisetty FIELD_PREP(RX_MPDU_DESC_INFO0_VALID_SA, 1) | 3164243874c6SManikanta Pubbisetty FIELD_PREP(RX_MPDU_DESC_INFO0_VALID_DA, 1) | 3165243874c6SManikanta Pubbisetty FIELD_PREP(RX_MPDU_DESC_INFO0_RAW_MPDU, 1) | 3166243874c6SManikanta Pubbisetty FIELD_PREP(RX_MPDU_DESC_INFO0_VALID_PN, 1); 3167243874c6SManikanta Pubbisetty 3168243874c6SManikanta Pubbisetty reo_ent_ring->rx_mpdu_info.info0 = mpdu_info; 3169243874c6SManikanta Pubbisetty reo_ent_ring->rx_mpdu_info.meta_data = reo_dest_ring->rx_mpdu_info.meta_data; 3170243874c6SManikanta Pubbisetty reo_ent_ring->queue_addr_lo = reo_dest_ring->queue_addr_lo; 3171243874c6SManikanta Pubbisetty reo_ent_ring->info0 = FIELD_PREP(HAL_REO_ENTR_RING_INFO0_QUEUE_ADDR_HI, 3172243874c6SManikanta Pubbisetty FIELD_GET(HAL_REO_DEST_RING_INFO0_QUEUE_ADDR_HI, 3173243874c6SManikanta Pubbisetty reo_dest_ring->info0)) | 3174243874c6SManikanta Pubbisetty FIELD_PREP(HAL_REO_ENTR_RING_INFO0_DEST_IND, dst_idx); 3175243874c6SManikanta Pubbisetty ath11k_hal_srng_access_end(ab, srng); 3176243874c6SManikanta Pubbisetty spin_unlock_bh(&srng->lock); 3177243874c6SManikanta Pubbisetty 3178243874c6SManikanta Pubbisetty return 0; 3179243874c6SManikanta Pubbisetty 3180243874c6SManikanta Pubbisetty err_free_idr: 3181243874c6SManikanta Pubbisetty spin_lock_bh(&rx_refill_ring->idr_lock); 3182243874c6SManikanta Pubbisetty idr_remove(&rx_refill_ring->bufs_idr, buf_id); 3183243874c6SManikanta Pubbisetty spin_unlock_bh(&rx_refill_ring->idr_lock); 3184243874c6SManikanta Pubbisetty err_unmap_dma: 3185243874c6SManikanta Pubbisetty dma_unmap_single(ab->dev, paddr, defrag_skb->len + skb_tailroom(defrag_skb), 3186243874c6SManikanta Pubbisetty DMA_FROM_DEVICE); 3187243874c6SManikanta Pubbisetty return ret; 3188243874c6SManikanta Pubbisetty } 3189243874c6SManikanta Pubbisetty 3190243874c6SManikanta Pubbisetty static int ath11k_dp_rx_h_cmp_frags(struct sk_buff *a, struct sk_buff *b) 3191243874c6SManikanta Pubbisetty { 3192243874c6SManikanta Pubbisetty int frag1, frag2; 3193243874c6SManikanta Pubbisetty 3194243874c6SManikanta Pubbisetty frag1 = ath11k_dp_rx_h_mpdu_start_frag_no(a); 3195243874c6SManikanta Pubbisetty frag2 = ath11k_dp_rx_h_mpdu_start_frag_no(b); 3196243874c6SManikanta Pubbisetty 3197243874c6SManikanta Pubbisetty return frag1 - frag2; 3198243874c6SManikanta Pubbisetty } 3199243874c6SManikanta Pubbisetty 3200243874c6SManikanta Pubbisetty static void ath11k_dp_rx_h_sort_frags(struct sk_buff_head *frag_list, 3201243874c6SManikanta Pubbisetty struct sk_buff *cur_frag) 3202243874c6SManikanta Pubbisetty { 3203243874c6SManikanta Pubbisetty struct sk_buff *skb; 3204243874c6SManikanta Pubbisetty int cmp; 3205243874c6SManikanta Pubbisetty 3206243874c6SManikanta Pubbisetty skb_queue_walk(frag_list, skb) { 3207243874c6SManikanta Pubbisetty cmp = ath11k_dp_rx_h_cmp_frags(skb, cur_frag); 3208243874c6SManikanta Pubbisetty if (cmp < 0) 3209243874c6SManikanta Pubbisetty continue; 3210243874c6SManikanta Pubbisetty __skb_queue_before(frag_list, skb, cur_frag); 3211243874c6SManikanta Pubbisetty return; 3212243874c6SManikanta Pubbisetty } 3213243874c6SManikanta Pubbisetty __skb_queue_tail(frag_list, cur_frag); 3214243874c6SManikanta Pubbisetty } 3215243874c6SManikanta Pubbisetty 3216243874c6SManikanta Pubbisetty static u64 ath11k_dp_rx_h_get_pn(struct sk_buff *skb) 3217243874c6SManikanta Pubbisetty { 3218243874c6SManikanta Pubbisetty struct ieee80211_hdr *hdr; 3219243874c6SManikanta Pubbisetty u64 pn = 0; 3220243874c6SManikanta Pubbisetty u8 *ehdr; 3221243874c6SManikanta Pubbisetty 3222243874c6SManikanta Pubbisetty hdr = (struct ieee80211_hdr *)(skb->data + HAL_RX_DESC_SIZE); 3223243874c6SManikanta Pubbisetty ehdr = skb->data + HAL_RX_DESC_SIZE + ieee80211_hdrlen(hdr->frame_control); 3224243874c6SManikanta Pubbisetty 3225243874c6SManikanta Pubbisetty pn = ehdr[0]; 3226243874c6SManikanta Pubbisetty pn |= (u64)ehdr[1] << 8; 3227243874c6SManikanta Pubbisetty pn |= (u64)ehdr[4] << 16; 3228243874c6SManikanta Pubbisetty pn |= (u64)ehdr[5] << 24; 3229243874c6SManikanta Pubbisetty pn |= (u64)ehdr[6] << 32; 3230243874c6SManikanta Pubbisetty pn |= (u64)ehdr[7] << 40; 3231243874c6SManikanta Pubbisetty 3232243874c6SManikanta Pubbisetty return pn; 3233243874c6SManikanta Pubbisetty } 3234243874c6SManikanta Pubbisetty 3235243874c6SManikanta Pubbisetty static bool 3236243874c6SManikanta Pubbisetty ath11k_dp_rx_h_defrag_validate_incr_pn(struct ath11k *ar, struct dp_rx_tid *rx_tid) 3237243874c6SManikanta Pubbisetty { 3238243874c6SManikanta Pubbisetty enum hal_encrypt_type encrypt_type; 3239243874c6SManikanta Pubbisetty struct sk_buff *first_frag, *skb; 3240243874c6SManikanta Pubbisetty struct hal_rx_desc *desc; 3241243874c6SManikanta Pubbisetty u64 last_pn; 3242243874c6SManikanta Pubbisetty u64 cur_pn; 3243243874c6SManikanta Pubbisetty 3244243874c6SManikanta Pubbisetty first_frag = skb_peek(&rx_tid->rx_frags); 3245243874c6SManikanta Pubbisetty desc = (struct hal_rx_desc *)first_frag->data; 3246243874c6SManikanta Pubbisetty 3247243874c6SManikanta Pubbisetty encrypt_type = ath11k_dp_rx_h_mpdu_start_enctype(desc); 3248243874c6SManikanta Pubbisetty if (encrypt_type != HAL_ENCRYPT_TYPE_CCMP_128 && 3249243874c6SManikanta Pubbisetty encrypt_type != HAL_ENCRYPT_TYPE_CCMP_256 && 3250243874c6SManikanta Pubbisetty encrypt_type != HAL_ENCRYPT_TYPE_GCMP_128 && 3251243874c6SManikanta Pubbisetty encrypt_type != HAL_ENCRYPT_TYPE_AES_GCMP_256) 3252243874c6SManikanta Pubbisetty return true; 3253243874c6SManikanta Pubbisetty 3254243874c6SManikanta Pubbisetty last_pn = ath11k_dp_rx_h_get_pn(first_frag); 3255243874c6SManikanta Pubbisetty skb_queue_walk(&rx_tid->rx_frags, skb) { 3256243874c6SManikanta Pubbisetty if (skb == first_frag) 3257243874c6SManikanta Pubbisetty continue; 3258243874c6SManikanta Pubbisetty 3259243874c6SManikanta Pubbisetty cur_pn = ath11k_dp_rx_h_get_pn(skb); 3260243874c6SManikanta Pubbisetty if (cur_pn != last_pn + 1) 3261243874c6SManikanta Pubbisetty return false; 3262243874c6SManikanta Pubbisetty last_pn = cur_pn; 3263243874c6SManikanta Pubbisetty } 3264243874c6SManikanta Pubbisetty return true; 3265243874c6SManikanta Pubbisetty } 3266243874c6SManikanta Pubbisetty 3267243874c6SManikanta Pubbisetty static int ath11k_dp_rx_frag_h_mpdu(struct ath11k *ar, 3268243874c6SManikanta Pubbisetty struct sk_buff *msdu, 3269243874c6SManikanta Pubbisetty u32 *ring_desc) 3270243874c6SManikanta Pubbisetty { 3271243874c6SManikanta Pubbisetty struct ath11k_base *ab = ar->ab; 3272243874c6SManikanta Pubbisetty struct hal_rx_desc *rx_desc; 3273243874c6SManikanta Pubbisetty struct ath11k_peer *peer; 3274243874c6SManikanta Pubbisetty struct dp_rx_tid *rx_tid; 3275243874c6SManikanta Pubbisetty struct sk_buff *defrag_skb = NULL; 3276243874c6SManikanta Pubbisetty u32 peer_id; 3277243874c6SManikanta Pubbisetty u16 seqno, frag_no; 3278243874c6SManikanta Pubbisetty u8 tid; 3279243874c6SManikanta Pubbisetty int ret = 0; 3280243874c6SManikanta Pubbisetty bool more_frags; 3281243874c6SManikanta Pubbisetty 3282243874c6SManikanta Pubbisetty rx_desc = (struct hal_rx_desc *)msdu->data; 3283243874c6SManikanta Pubbisetty peer_id = ath11k_dp_rx_h_mpdu_start_peer_id(rx_desc); 3284243874c6SManikanta Pubbisetty tid = ath11k_dp_rx_h_mpdu_start_tid(rx_desc); 3285243874c6SManikanta Pubbisetty seqno = ath11k_dp_rx_h_mpdu_start_seq_no(rx_desc); 3286243874c6SManikanta Pubbisetty frag_no = ath11k_dp_rx_h_mpdu_start_frag_no(msdu); 3287243874c6SManikanta Pubbisetty more_frags = ath11k_dp_rx_h_mpdu_start_more_frags(msdu); 3288243874c6SManikanta Pubbisetty 3289243874c6SManikanta Pubbisetty if (!ath11k_dp_rx_h_mpdu_start_seq_ctrl_valid(rx_desc) || 3290243874c6SManikanta Pubbisetty !ath11k_dp_rx_h_mpdu_start_fc_valid(rx_desc) || 3291243874c6SManikanta Pubbisetty tid > IEEE80211_NUM_TIDS) 3292243874c6SManikanta Pubbisetty return -EINVAL; 3293243874c6SManikanta Pubbisetty 3294243874c6SManikanta Pubbisetty /* received unfragmented packet in reo 3295243874c6SManikanta Pubbisetty * exception ring, this shouldn't happen 3296243874c6SManikanta Pubbisetty * as these packets typically come from 3297243874c6SManikanta Pubbisetty * reo2sw srngs. 3298243874c6SManikanta Pubbisetty */ 3299243874c6SManikanta Pubbisetty if (WARN_ON_ONCE(!frag_no && !more_frags)) 3300243874c6SManikanta Pubbisetty return -EINVAL; 3301243874c6SManikanta Pubbisetty 3302243874c6SManikanta Pubbisetty spin_lock_bh(&ab->base_lock); 3303243874c6SManikanta Pubbisetty peer = ath11k_peer_find_by_id(ab, peer_id); 3304243874c6SManikanta Pubbisetty if (!peer) { 3305243874c6SManikanta Pubbisetty ath11k_warn(ab, "failed to find the peer to de-fragment received fragment peer_id %d\n", 3306243874c6SManikanta Pubbisetty peer_id); 3307243874c6SManikanta Pubbisetty ret = -ENOENT; 3308243874c6SManikanta Pubbisetty goto out_unlock; 3309243874c6SManikanta Pubbisetty } 3310243874c6SManikanta Pubbisetty rx_tid = &peer->rx_tid[tid]; 3311243874c6SManikanta Pubbisetty 3312243874c6SManikanta Pubbisetty if ((!skb_queue_empty(&rx_tid->rx_frags) && seqno != rx_tid->cur_sn) || 3313243874c6SManikanta Pubbisetty skb_queue_empty(&rx_tid->rx_frags)) { 3314243874c6SManikanta Pubbisetty /* Flush stored fragments and start a new sequence */ 3315243874c6SManikanta Pubbisetty ath11k_dp_rx_frags_cleanup(rx_tid, true); 3316243874c6SManikanta Pubbisetty rx_tid->cur_sn = seqno; 3317243874c6SManikanta Pubbisetty } 3318243874c6SManikanta Pubbisetty 3319243874c6SManikanta Pubbisetty if (rx_tid->rx_frag_bitmap & BIT(frag_no)) { 3320243874c6SManikanta Pubbisetty /* Fragment already present */ 3321243874c6SManikanta Pubbisetty ret = -EINVAL; 3322243874c6SManikanta Pubbisetty goto out_unlock; 3323243874c6SManikanta Pubbisetty } 3324243874c6SManikanta Pubbisetty 3325243874c6SManikanta Pubbisetty if (frag_no > __fls(rx_tid->rx_frag_bitmap)) 3326243874c6SManikanta Pubbisetty __skb_queue_tail(&rx_tid->rx_frags, msdu); 3327243874c6SManikanta Pubbisetty else 3328243874c6SManikanta Pubbisetty ath11k_dp_rx_h_sort_frags(&rx_tid->rx_frags, msdu); 3329243874c6SManikanta Pubbisetty 3330243874c6SManikanta Pubbisetty rx_tid->rx_frag_bitmap |= BIT(frag_no); 3331243874c6SManikanta Pubbisetty if (!more_frags) 3332243874c6SManikanta Pubbisetty rx_tid->last_frag_no = frag_no; 3333243874c6SManikanta Pubbisetty 3334243874c6SManikanta Pubbisetty if (frag_no == 0) { 3335243874c6SManikanta Pubbisetty rx_tid->dst_ring_desc = kmemdup(ring_desc, 3336243874c6SManikanta Pubbisetty sizeof(*rx_tid->dst_ring_desc), 3337243874c6SManikanta Pubbisetty GFP_ATOMIC); 3338243874c6SManikanta Pubbisetty if (!rx_tid->dst_ring_desc) { 3339243874c6SManikanta Pubbisetty ret = -ENOMEM; 3340243874c6SManikanta Pubbisetty goto out_unlock; 3341243874c6SManikanta Pubbisetty } 3342243874c6SManikanta Pubbisetty } else { 3343243874c6SManikanta Pubbisetty ath11k_dp_rx_link_desc_return(ab, ring_desc, 3344243874c6SManikanta Pubbisetty HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); 3345243874c6SManikanta Pubbisetty } 3346243874c6SManikanta Pubbisetty 3347243874c6SManikanta Pubbisetty if (!rx_tid->last_frag_no || 3348243874c6SManikanta Pubbisetty rx_tid->rx_frag_bitmap != GENMASK(rx_tid->last_frag_no, 0)) { 3349243874c6SManikanta Pubbisetty mod_timer(&rx_tid->frag_timer, jiffies + 3350243874c6SManikanta Pubbisetty ATH11K_DP_RX_FRAGMENT_TIMEOUT_MS); 3351243874c6SManikanta Pubbisetty goto out_unlock; 3352243874c6SManikanta Pubbisetty } 3353243874c6SManikanta Pubbisetty 3354243874c6SManikanta Pubbisetty spin_unlock_bh(&ab->base_lock); 3355243874c6SManikanta Pubbisetty del_timer_sync(&rx_tid->frag_timer); 3356243874c6SManikanta Pubbisetty spin_lock_bh(&ab->base_lock); 3357243874c6SManikanta Pubbisetty 3358243874c6SManikanta Pubbisetty peer = ath11k_peer_find_by_id(ab, peer_id); 3359243874c6SManikanta Pubbisetty if (!peer) 3360243874c6SManikanta Pubbisetty goto err_frags_cleanup; 3361243874c6SManikanta Pubbisetty 3362243874c6SManikanta Pubbisetty if (!ath11k_dp_rx_h_defrag_validate_incr_pn(ar, rx_tid)) 3363243874c6SManikanta Pubbisetty goto err_frags_cleanup; 3364243874c6SManikanta Pubbisetty 3365243874c6SManikanta Pubbisetty if (ath11k_dp_rx_h_defrag(ar, peer, rx_tid, &defrag_skb)) 3366243874c6SManikanta Pubbisetty goto err_frags_cleanup; 3367243874c6SManikanta Pubbisetty 3368243874c6SManikanta Pubbisetty if (!defrag_skb) 3369243874c6SManikanta Pubbisetty goto err_frags_cleanup; 3370243874c6SManikanta Pubbisetty 3371243874c6SManikanta Pubbisetty if (ath11k_dp_rx_h_defrag_reo_reinject(ar, rx_tid, defrag_skb)) 3372243874c6SManikanta Pubbisetty goto err_frags_cleanup; 3373243874c6SManikanta Pubbisetty 3374243874c6SManikanta Pubbisetty ath11k_dp_rx_frags_cleanup(rx_tid, false); 3375243874c6SManikanta Pubbisetty goto out_unlock; 3376243874c6SManikanta Pubbisetty 3377243874c6SManikanta Pubbisetty err_frags_cleanup: 3378243874c6SManikanta Pubbisetty dev_kfree_skb_any(defrag_skb); 3379243874c6SManikanta Pubbisetty ath11k_dp_rx_frags_cleanup(rx_tid, true); 3380243874c6SManikanta Pubbisetty out_unlock: 3381243874c6SManikanta Pubbisetty spin_unlock_bh(&ab->base_lock); 3382243874c6SManikanta Pubbisetty return ret; 3383243874c6SManikanta Pubbisetty } 3384243874c6SManikanta Pubbisetty 3385d5c65159SKalle Valo static int 3386243874c6SManikanta Pubbisetty ath11k_dp_process_rx_err_buf(struct ath11k *ar, u32 *ring_desc, int buf_id, bool drop) 3387d5c65159SKalle Valo { 3388d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 3389d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; 3390d5c65159SKalle Valo struct sk_buff *msdu; 3391d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb; 3392d5c65159SKalle Valo struct hal_rx_desc *rx_desc; 3393d5c65159SKalle Valo u16 msdu_len; 3394d5c65159SKalle Valo 3395d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 3396d5c65159SKalle Valo msdu = idr_find(&rx_ring->bufs_idr, buf_id); 3397d5c65159SKalle Valo if (!msdu) { 3398d5c65159SKalle Valo ath11k_warn(ar->ab, "rx err buf with invalid buf_id %d\n", 3399d5c65159SKalle Valo buf_id); 3400d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 3401d5c65159SKalle Valo return -EINVAL; 3402d5c65159SKalle Valo } 3403d5c65159SKalle Valo 3404d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 3405d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 3406d5c65159SKalle Valo 3407d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(msdu); 3408d5c65159SKalle Valo dma_unmap_single(ar->ab->dev, rxcb->paddr, 3409d5c65159SKalle Valo msdu->len + skb_tailroom(msdu), 3410d5c65159SKalle Valo DMA_FROM_DEVICE); 3411d5c65159SKalle Valo 3412243874c6SManikanta Pubbisetty if (drop) { 3413d5c65159SKalle Valo dev_kfree_skb_any(msdu); 3414d5c65159SKalle Valo return 0; 3415d5c65159SKalle Valo } 3416d5c65159SKalle Valo 3417d5c65159SKalle Valo rcu_read_lock(); 3418d5c65159SKalle Valo if (!rcu_dereference(ar->ab->pdevs_active[ar->pdev_idx])) { 3419d5c65159SKalle Valo dev_kfree_skb_any(msdu); 3420d5c65159SKalle Valo goto exit; 3421d5c65159SKalle Valo } 3422d5c65159SKalle Valo 3423d5c65159SKalle Valo if (test_bit(ATH11K_CAC_RUNNING, &ar->dev_flags)) { 3424d5c65159SKalle Valo dev_kfree_skb_any(msdu); 3425d5c65159SKalle Valo goto exit; 3426d5c65159SKalle Valo } 3427d5c65159SKalle Valo 3428d5c65159SKalle Valo rx_desc = (struct hal_rx_desc *)msdu->data; 3429d5c65159SKalle Valo msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(rx_desc); 3430d5c65159SKalle Valo skb_put(msdu, HAL_RX_DESC_SIZE + msdu_len); 3431d5c65159SKalle Valo 3432243874c6SManikanta Pubbisetty if (ath11k_dp_rx_frag_h_mpdu(ar, msdu, ring_desc)) { 3433243874c6SManikanta Pubbisetty dev_kfree_skb_any(msdu); 3434243874c6SManikanta Pubbisetty ath11k_dp_rx_link_desc_return(ar->ab, ring_desc, 3435243874c6SManikanta Pubbisetty HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); 3436243874c6SManikanta Pubbisetty } 3437d5c65159SKalle Valo exit: 3438d5c65159SKalle Valo rcu_read_unlock(); 3439d5c65159SKalle Valo return 0; 3440d5c65159SKalle Valo } 3441d5c65159SKalle Valo 3442d5c65159SKalle Valo int ath11k_dp_process_rx_err(struct ath11k_base *ab, struct napi_struct *napi, 3443d5c65159SKalle Valo int budget) 3444d5c65159SKalle Valo { 3445293cb583SJohn Crispin u32 msdu_cookies[HAL_NUM_RX_MSDUS_PER_LINK_DESC]; 3446d5c65159SKalle Valo struct dp_link_desc_bank *link_desc_banks; 3447d5c65159SKalle Valo enum hal_rx_buf_return_buf_manager rbm; 3448d5c65159SKalle Valo int tot_n_bufs_reaped, quota, ret, i; 3449d5c65159SKalle Valo int n_bufs_reaped[MAX_RADIOS] = {0}; 3450d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring; 3451d5c65159SKalle Valo struct dp_srng *reo_except; 3452d5c65159SKalle Valo u32 desc_bank, num_msdus; 3453d5c65159SKalle Valo struct hal_srng *srng; 3454d5c65159SKalle Valo struct ath11k_dp *dp; 3455d5c65159SKalle Valo void *link_desc_va; 3456d5c65159SKalle Valo int buf_id, mac_id; 3457d5c65159SKalle Valo struct ath11k *ar; 3458d5c65159SKalle Valo dma_addr_t paddr; 3459d5c65159SKalle Valo u32 *desc; 3460d5c65159SKalle Valo bool is_frag; 3461243874c6SManikanta Pubbisetty u8 drop = 0; 3462d5c65159SKalle Valo 3463d5c65159SKalle Valo tot_n_bufs_reaped = 0; 3464d5c65159SKalle Valo quota = budget; 3465d5c65159SKalle Valo 3466d5c65159SKalle Valo dp = &ab->dp; 3467d5c65159SKalle Valo reo_except = &dp->reo_except_ring; 3468d5c65159SKalle Valo link_desc_banks = dp->link_desc_banks; 3469d5c65159SKalle Valo 3470d5c65159SKalle Valo srng = &ab->hal.srng_list[reo_except->ring_id]; 3471d5c65159SKalle Valo 3472d5c65159SKalle Valo spin_lock_bh(&srng->lock); 3473d5c65159SKalle Valo 3474d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 3475d5c65159SKalle Valo 3476d5c65159SKalle Valo while (budget && 3477d5c65159SKalle Valo (desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { 3478293cb583SJohn Crispin struct hal_reo_dest_ring *reo_desc = (struct hal_reo_dest_ring *)desc; 3479293cb583SJohn Crispin 3480d5c65159SKalle Valo ab->soc_stats.err_ring_pkts++; 3481d5c65159SKalle Valo ret = ath11k_hal_desc_reo_parse_err(ab, desc, &paddr, 3482d5c65159SKalle Valo &desc_bank); 3483d5c65159SKalle Valo if (ret) { 3484d5c65159SKalle Valo ath11k_warn(ab, "failed to parse error reo desc %d\n", 3485d5c65159SKalle Valo ret); 3486d5c65159SKalle Valo continue; 3487d5c65159SKalle Valo } 3488d5c65159SKalle Valo link_desc_va = link_desc_banks[desc_bank].vaddr + 3489d5c65159SKalle Valo (paddr - link_desc_banks[desc_bank].paddr); 3490293cb583SJohn Crispin ath11k_hal_rx_msdu_link_info_get(link_desc_va, &num_msdus, msdu_cookies, 3491d5c65159SKalle Valo &rbm); 3492d5c65159SKalle Valo if (rbm != HAL_RX_BUF_RBM_WBM_IDLE_DESC_LIST && 3493d5c65159SKalle Valo rbm != HAL_RX_BUF_RBM_SW3_BM) { 3494d5c65159SKalle Valo ab->soc_stats.invalid_rbm++; 3495d5c65159SKalle Valo ath11k_warn(ab, "invalid return buffer manager %d\n", rbm); 3496d5c65159SKalle Valo ath11k_dp_rx_link_desc_return(ab, desc, 3497d5c65159SKalle Valo HAL_WBM_REL_BM_ACT_REL_MSDU); 3498d5c65159SKalle Valo continue; 3499d5c65159SKalle Valo } 3500d5c65159SKalle Valo 3501293cb583SJohn Crispin is_frag = !!(reo_desc->rx_mpdu_info.info0 & RX_MPDU_DESC_INFO0_FRAG_FLAG); 3502d5c65159SKalle Valo 3503243874c6SManikanta Pubbisetty /* Process only rx fragments with one msdu per link desc below, and drop 3504243874c6SManikanta Pubbisetty * msdu's indicated due to error reasons. 3505243874c6SManikanta Pubbisetty */ 3506243874c6SManikanta Pubbisetty if (!is_frag || num_msdus > 1) { 3507243874c6SManikanta Pubbisetty drop = 1; 3508d5c65159SKalle Valo /* Return the link desc back to wbm idle list */ 3509d5c65159SKalle Valo ath11k_dp_rx_link_desc_return(ab, desc, 3510d5c65159SKalle Valo HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); 3511243874c6SManikanta Pubbisetty } 3512d5c65159SKalle Valo 3513d5c65159SKalle Valo for (i = 0; i < num_msdus; i++) { 3514d5c65159SKalle Valo buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, 3515293cb583SJohn Crispin msdu_cookies[i]); 3516d5c65159SKalle Valo 3517d5c65159SKalle Valo mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, 3518293cb583SJohn Crispin msdu_cookies[i]); 3519d5c65159SKalle Valo 3520d5c65159SKalle Valo ar = ab->pdevs[mac_id].ar; 3521d5c65159SKalle Valo 3522243874c6SManikanta Pubbisetty if (!ath11k_dp_process_rx_err_buf(ar, desc, buf_id, drop)) { 3523d5c65159SKalle Valo n_bufs_reaped[mac_id]++; 3524d5c65159SKalle Valo tot_n_bufs_reaped++; 3525d5c65159SKalle Valo } 3526d5c65159SKalle Valo } 3527d5c65159SKalle Valo 3528d5c65159SKalle Valo if (tot_n_bufs_reaped >= quota) { 3529d5c65159SKalle Valo tot_n_bufs_reaped = quota; 3530d5c65159SKalle Valo goto exit; 3531d5c65159SKalle Valo } 3532d5c65159SKalle Valo 3533d5c65159SKalle Valo budget = quota - tot_n_bufs_reaped; 3534d5c65159SKalle Valo } 3535d5c65159SKalle Valo 3536d5c65159SKalle Valo exit: 3537d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 3538d5c65159SKalle Valo 3539d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 3540d5c65159SKalle Valo 3541d5c65159SKalle Valo for (i = 0; i < ab->num_radios; i++) { 3542d5c65159SKalle Valo if (!n_bufs_reaped[i]) 3543d5c65159SKalle Valo continue; 3544d5c65159SKalle Valo 3545d5c65159SKalle Valo ar = ab->pdevs[i].ar; 3546d5c65159SKalle Valo rx_ring = &ar->dp.rx_refill_buf_ring; 3547d5c65159SKalle Valo 3548d5c65159SKalle Valo ath11k_dp_rxbufs_replenish(ab, i, rx_ring, n_bufs_reaped[i], 3549d5c65159SKalle Valo HAL_RX_BUF_RBM_SW3_BM, GFP_ATOMIC); 3550d5c65159SKalle Valo } 3551d5c65159SKalle Valo 3552d5c65159SKalle Valo return tot_n_bufs_reaped; 3553d5c65159SKalle Valo } 3554d5c65159SKalle Valo 3555d5c65159SKalle Valo static void ath11k_dp_rx_null_q_desc_sg_drop(struct ath11k *ar, 3556d5c65159SKalle Valo int msdu_len, 3557d5c65159SKalle Valo struct sk_buff_head *msdu_list) 3558d5c65159SKalle Valo { 3559d5c65159SKalle Valo struct sk_buff *skb, *tmp; 3560d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb; 3561d5c65159SKalle Valo int n_buffs; 3562d5c65159SKalle Valo 3563d5c65159SKalle Valo n_buffs = DIV_ROUND_UP(msdu_len, 3564d5c65159SKalle Valo (DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE)); 3565d5c65159SKalle Valo 3566d5c65159SKalle Valo skb_queue_walk_safe(msdu_list, skb, tmp) { 3567d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(skb); 3568d5c65159SKalle Valo if (rxcb->err_rel_src == HAL_WBM_REL_SRC_MODULE_REO && 3569d5c65159SKalle Valo rxcb->err_code == HAL_REO_DEST_RING_ERROR_CODE_DESC_ADDR_ZERO) { 3570d5c65159SKalle Valo if (!n_buffs) 3571d5c65159SKalle Valo break; 3572d5c65159SKalle Valo __skb_unlink(skb, msdu_list); 3573d5c65159SKalle Valo dev_kfree_skb_any(skb); 3574d5c65159SKalle Valo n_buffs--; 3575d5c65159SKalle Valo } 3576d5c65159SKalle Valo } 3577d5c65159SKalle Valo } 3578d5c65159SKalle Valo 3579d5c65159SKalle Valo static int ath11k_dp_rx_h_null_q_desc(struct ath11k *ar, struct sk_buff *msdu, 3580d5c65159SKalle Valo struct ieee80211_rx_status *status, 3581d5c65159SKalle Valo struct sk_buff_head *msdu_list) 3582d5c65159SKalle Valo { 3583d5c65159SKalle Valo u16 msdu_len; 3584d5c65159SKalle Valo struct hal_rx_desc *desc = (struct hal_rx_desc *)msdu->data; 3585d5c65159SKalle Valo u8 l3pad_bytes; 3586d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 3587d5c65159SKalle Valo 3588d5c65159SKalle Valo msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(desc); 3589d5c65159SKalle Valo 3590243874c6SManikanta Pubbisetty if (!rxcb->is_frag && ((msdu_len + HAL_RX_DESC_SIZE) > DP_RX_BUFFER_SIZE)) { 3591d5c65159SKalle Valo /* First buffer will be freed by the caller, so deduct it's length */ 3592d5c65159SKalle Valo msdu_len = msdu_len - (DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE); 3593d5c65159SKalle Valo ath11k_dp_rx_null_q_desc_sg_drop(ar, msdu_len, msdu_list); 3594d5c65159SKalle Valo return -EINVAL; 3595d5c65159SKalle Valo } 3596d5c65159SKalle Valo 3597d5c65159SKalle Valo if (!ath11k_dp_rx_h_attn_msdu_done(desc)) { 3598d5c65159SKalle Valo ath11k_warn(ar->ab, 3599d5c65159SKalle Valo "msdu_done bit not set in null_q_des processing\n"); 3600d5c65159SKalle Valo __skb_queue_purge(msdu_list); 3601d5c65159SKalle Valo return -EIO; 3602d5c65159SKalle Valo } 3603d5c65159SKalle Valo 3604d5c65159SKalle Valo /* Handle NULL queue descriptor violations arising out a missing 3605d5c65159SKalle Valo * REO queue for a given peer or a given TID. This typically 3606d5c65159SKalle Valo * may happen if a packet is received on a QOS enabled TID before the 3607d5c65159SKalle Valo * ADDBA negotiation for that TID, when the TID queue is setup. Or 3608d5c65159SKalle Valo * it may also happen for MC/BC frames if they are not routed to the 3609d5c65159SKalle Valo * non-QOS TID queue, in the absence of any other default TID queue. 3610d5c65159SKalle Valo * This error can show up both in a REO destination or WBM release ring. 3611d5c65159SKalle Valo */ 3612d5c65159SKalle Valo 3613d5c65159SKalle Valo rxcb->is_first_msdu = ath11k_dp_rx_h_msdu_end_first_msdu(desc); 3614d5c65159SKalle Valo rxcb->is_last_msdu = ath11k_dp_rx_h_msdu_end_last_msdu(desc); 3615d5c65159SKalle Valo 3616243874c6SManikanta Pubbisetty if (rxcb->is_frag) { 3617243874c6SManikanta Pubbisetty skb_pull(msdu, HAL_RX_DESC_SIZE); 3618243874c6SManikanta Pubbisetty } else { 3619d5c65159SKalle Valo l3pad_bytes = ath11k_dp_rx_h_msdu_end_l3pad(desc); 3620d5c65159SKalle Valo 3621d5c65159SKalle Valo if ((HAL_RX_DESC_SIZE + l3pad_bytes + msdu_len) > DP_RX_BUFFER_SIZE) 3622d5c65159SKalle Valo return -EINVAL; 3623d5c65159SKalle Valo 3624d5c65159SKalle Valo skb_put(msdu, HAL_RX_DESC_SIZE + l3pad_bytes + msdu_len); 3625d5c65159SKalle Valo skb_pull(msdu, HAL_RX_DESC_SIZE + l3pad_bytes); 3626243874c6SManikanta Pubbisetty } 3627d5c65159SKalle Valo ath11k_dp_rx_h_ppdu(ar, desc, status); 3628d5c65159SKalle Valo 3629acc79d98SSriram R ath11k_dp_rx_h_mpdu(ar, msdu, desc, status); 3630d5c65159SKalle Valo 3631acc79d98SSriram R rxcb->tid = ath11k_dp_rx_h_mpdu_start_tid(desc); 3632d5c65159SKalle Valo 3633d5c65159SKalle Valo /* Please note that caller will having the access to msdu and completing 3634d5c65159SKalle Valo * rx with mac80211. Need not worry about cleaning up amsdu_list. 3635d5c65159SKalle Valo */ 3636d5c65159SKalle Valo 3637d5c65159SKalle Valo return 0; 3638d5c65159SKalle Valo } 3639d5c65159SKalle Valo 3640d5c65159SKalle Valo static bool ath11k_dp_rx_h_reo_err(struct ath11k *ar, struct sk_buff *msdu, 3641d5c65159SKalle Valo struct ieee80211_rx_status *status, 3642d5c65159SKalle Valo struct sk_buff_head *msdu_list) 3643d5c65159SKalle Valo { 3644d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 3645d5c65159SKalle Valo bool drop = false; 3646d5c65159SKalle Valo 3647d5c65159SKalle Valo ar->ab->soc_stats.reo_error[rxcb->err_code]++; 3648d5c65159SKalle Valo 3649d5c65159SKalle Valo switch (rxcb->err_code) { 3650d5c65159SKalle Valo case HAL_REO_DEST_RING_ERROR_CODE_DESC_ADDR_ZERO: 3651d5c65159SKalle Valo if (ath11k_dp_rx_h_null_q_desc(ar, msdu, status, msdu_list)) 3652d5c65159SKalle Valo drop = true; 3653d5c65159SKalle Valo break; 36541441b2f2SManikanta Pubbisetty case HAL_REO_DEST_RING_ERROR_CODE_PN_CHECK_FAILED: 36551441b2f2SManikanta Pubbisetty /* TODO: Do not drop PN failed packets in the driver; 36561441b2f2SManikanta Pubbisetty * instead, it is good to drop such packets in mac80211 36571441b2f2SManikanta Pubbisetty * after incrementing the replay counters. 36581441b2f2SManikanta Pubbisetty */ 36591441b2f2SManikanta Pubbisetty 36601441b2f2SManikanta Pubbisetty /* fall through */ 3661d5c65159SKalle Valo default: 3662d5c65159SKalle Valo /* TODO: Review other errors and process them to mac80211 3663d5c65159SKalle Valo * as appropriate. 3664d5c65159SKalle Valo */ 3665d5c65159SKalle Valo drop = true; 3666d5c65159SKalle Valo break; 3667d5c65159SKalle Valo } 3668d5c65159SKalle Valo 3669d5c65159SKalle Valo return drop; 3670d5c65159SKalle Valo } 3671d5c65159SKalle Valo 3672d5c65159SKalle Valo static void ath11k_dp_rx_h_tkip_mic_err(struct ath11k *ar, struct sk_buff *msdu, 3673d5c65159SKalle Valo struct ieee80211_rx_status *status) 3674d5c65159SKalle Valo { 3675d5c65159SKalle Valo u16 msdu_len; 3676d5c65159SKalle Valo struct hal_rx_desc *desc = (struct hal_rx_desc *)msdu->data; 3677d5c65159SKalle Valo u8 l3pad_bytes; 3678d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 3679d5c65159SKalle Valo 3680d5c65159SKalle Valo rxcb->is_first_msdu = ath11k_dp_rx_h_msdu_end_first_msdu(desc); 3681d5c65159SKalle Valo rxcb->is_last_msdu = ath11k_dp_rx_h_msdu_end_last_msdu(desc); 3682d5c65159SKalle Valo 3683d5c65159SKalle Valo l3pad_bytes = ath11k_dp_rx_h_msdu_end_l3pad(desc); 3684d5c65159SKalle Valo msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(desc); 3685d5c65159SKalle Valo skb_put(msdu, HAL_RX_DESC_SIZE + l3pad_bytes + msdu_len); 3686d5c65159SKalle Valo skb_pull(msdu, HAL_RX_DESC_SIZE + l3pad_bytes); 3687d5c65159SKalle Valo 3688d5c65159SKalle Valo ath11k_dp_rx_h_ppdu(ar, desc, status); 3689d5c65159SKalle Valo 3690d5c65159SKalle Valo status->flag |= (RX_FLAG_MMIC_STRIPPED | RX_FLAG_MMIC_ERROR | 3691d5c65159SKalle Valo RX_FLAG_DECRYPTED); 3692d5c65159SKalle Valo 3693d5c65159SKalle Valo ath11k_dp_rx_h_undecap(ar, msdu, desc, 3694d5c65159SKalle Valo HAL_ENCRYPT_TYPE_TKIP_MIC, status, false); 3695d5c65159SKalle Valo } 3696d5c65159SKalle Valo 3697d5c65159SKalle Valo static bool ath11k_dp_rx_h_rxdma_err(struct ath11k *ar, struct sk_buff *msdu, 3698d5c65159SKalle Valo struct ieee80211_rx_status *status) 3699d5c65159SKalle Valo { 3700d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 3701d5c65159SKalle Valo bool drop = false; 3702d5c65159SKalle Valo 3703d5c65159SKalle Valo ar->ab->soc_stats.rxdma_error[rxcb->err_code]++; 3704d5c65159SKalle Valo 3705d5c65159SKalle Valo switch (rxcb->err_code) { 3706d5c65159SKalle Valo case HAL_REO_ENTR_RING_RXDMA_ECODE_TKIP_MIC_ERR: 3707d5c65159SKalle Valo ath11k_dp_rx_h_tkip_mic_err(ar, msdu, status); 3708d5c65159SKalle Valo break; 3709d5c65159SKalle Valo default: 3710d5c65159SKalle Valo /* TODO: Review other rxdma error code to check if anything is 3711d5c65159SKalle Valo * worth reporting to mac80211 3712d5c65159SKalle Valo */ 3713d5c65159SKalle Valo drop = true; 3714d5c65159SKalle Valo break; 3715d5c65159SKalle Valo } 3716d5c65159SKalle Valo 3717d5c65159SKalle Valo return drop; 3718d5c65159SKalle Valo } 3719d5c65159SKalle Valo 3720d5c65159SKalle Valo static void ath11k_dp_rx_wbm_err(struct ath11k *ar, 3721d5c65159SKalle Valo struct napi_struct *napi, 3722d5c65159SKalle Valo struct sk_buff *msdu, 3723d5c65159SKalle Valo struct sk_buff_head *msdu_list) 3724d5c65159SKalle Valo { 3725d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); 3726d5c65159SKalle Valo struct ieee80211_rx_status rxs = {0}; 3727d5c65159SKalle Valo struct ieee80211_rx_status *status; 3728d5c65159SKalle Valo bool drop = true; 3729d5c65159SKalle Valo 3730d5c65159SKalle Valo switch (rxcb->err_rel_src) { 3731d5c65159SKalle Valo case HAL_WBM_REL_SRC_MODULE_REO: 3732d5c65159SKalle Valo drop = ath11k_dp_rx_h_reo_err(ar, msdu, &rxs, msdu_list); 3733d5c65159SKalle Valo break; 3734d5c65159SKalle Valo case HAL_WBM_REL_SRC_MODULE_RXDMA: 3735d5c65159SKalle Valo drop = ath11k_dp_rx_h_rxdma_err(ar, msdu, &rxs); 3736d5c65159SKalle Valo break; 3737d5c65159SKalle Valo default: 3738d5c65159SKalle Valo /* msdu will get freed */ 3739d5c65159SKalle Valo break; 3740d5c65159SKalle Valo } 3741d5c65159SKalle Valo 3742d5c65159SKalle Valo if (drop) { 3743d5c65159SKalle Valo dev_kfree_skb_any(msdu); 3744d5c65159SKalle Valo return; 3745d5c65159SKalle Valo } 3746d5c65159SKalle Valo 3747d5c65159SKalle Valo status = IEEE80211_SKB_RXCB(msdu); 3748d5c65159SKalle Valo *status = rxs; 3749d5c65159SKalle Valo 3750d5c65159SKalle Valo ath11k_dp_rx_deliver_msdu(ar, napi, msdu); 3751d5c65159SKalle Valo } 3752d5c65159SKalle Valo 3753d5c65159SKalle Valo int ath11k_dp_rx_process_wbm_err(struct ath11k_base *ab, 3754d5c65159SKalle Valo struct napi_struct *napi, int budget) 3755d5c65159SKalle Valo { 3756d5c65159SKalle Valo struct ath11k *ar; 3757d5c65159SKalle Valo struct ath11k_dp *dp = &ab->dp; 3758d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring; 3759d5c65159SKalle Valo struct hal_rx_wbm_rel_info err_info; 3760d5c65159SKalle Valo struct hal_srng *srng; 3761d5c65159SKalle Valo struct sk_buff *msdu; 3762d5c65159SKalle Valo struct sk_buff_head msdu_list[MAX_RADIOS]; 3763d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb; 3764d5c65159SKalle Valo u32 *rx_desc; 3765d5c65159SKalle Valo int buf_id, mac_id; 3766d5c65159SKalle Valo int num_buffs_reaped[MAX_RADIOS] = {0}; 3767d5c65159SKalle Valo int total_num_buffs_reaped = 0; 3768d5c65159SKalle Valo int ret, i; 3769d5c65159SKalle Valo 3770d5c65159SKalle Valo for (i = 0; i < MAX_RADIOS; i++) 3771d5c65159SKalle Valo __skb_queue_head_init(&msdu_list[i]); 3772d5c65159SKalle Valo 3773d5c65159SKalle Valo srng = &ab->hal.srng_list[dp->rx_rel_ring.ring_id]; 3774d5c65159SKalle Valo 3775d5c65159SKalle Valo spin_lock_bh(&srng->lock); 3776d5c65159SKalle Valo 3777d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 3778d5c65159SKalle Valo 3779d5c65159SKalle Valo while (budget) { 3780d5c65159SKalle Valo rx_desc = ath11k_hal_srng_dst_get_next_entry(ab, srng); 3781d5c65159SKalle Valo if (!rx_desc) 3782d5c65159SKalle Valo break; 3783d5c65159SKalle Valo 3784d5c65159SKalle Valo ret = ath11k_hal_wbm_desc_parse_err(ab, rx_desc, &err_info); 3785d5c65159SKalle Valo if (ret) { 3786d5c65159SKalle Valo ath11k_warn(ab, 3787d5c65159SKalle Valo "failed to parse rx error in wbm_rel ring desc %d\n", 3788d5c65159SKalle Valo ret); 3789d5c65159SKalle Valo continue; 3790d5c65159SKalle Valo } 3791d5c65159SKalle Valo 3792d5c65159SKalle Valo buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, err_info.cookie); 3793d5c65159SKalle Valo mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, err_info.cookie); 3794d5c65159SKalle Valo 3795d5c65159SKalle Valo ar = ab->pdevs[mac_id].ar; 3796d5c65159SKalle Valo rx_ring = &ar->dp.rx_refill_buf_ring; 3797d5c65159SKalle Valo 3798d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 3799d5c65159SKalle Valo msdu = idr_find(&rx_ring->bufs_idr, buf_id); 3800d5c65159SKalle Valo if (!msdu) { 3801d5c65159SKalle Valo ath11k_warn(ab, "frame rx with invalid buf_id %d pdev %d\n", 3802d5c65159SKalle Valo buf_id, mac_id); 3803d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 3804d5c65159SKalle Valo continue; 3805d5c65159SKalle Valo } 3806d5c65159SKalle Valo 3807d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 3808d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 3809d5c65159SKalle Valo 3810d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(msdu); 3811d5c65159SKalle Valo dma_unmap_single(ab->dev, rxcb->paddr, 3812d5c65159SKalle Valo msdu->len + skb_tailroom(msdu), 3813d5c65159SKalle Valo DMA_FROM_DEVICE); 3814d5c65159SKalle Valo 3815d5c65159SKalle Valo num_buffs_reaped[mac_id]++; 3816d5c65159SKalle Valo total_num_buffs_reaped++; 3817d5c65159SKalle Valo budget--; 3818d5c65159SKalle Valo 3819d5c65159SKalle Valo if (err_info.push_reason != 3820d5c65159SKalle Valo HAL_REO_DEST_RING_PUSH_REASON_ERR_DETECTED) { 3821d5c65159SKalle Valo dev_kfree_skb_any(msdu); 3822d5c65159SKalle Valo continue; 3823d5c65159SKalle Valo } 3824d5c65159SKalle Valo 3825d5c65159SKalle Valo rxcb->err_rel_src = err_info.err_rel_src; 3826d5c65159SKalle Valo rxcb->err_code = err_info.err_code; 3827d5c65159SKalle Valo rxcb->rx_desc = (struct hal_rx_desc *)msdu->data; 3828d5c65159SKalle Valo __skb_queue_tail(&msdu_list[mac_id], msdu); 3829d5c65159SKalle Valo } 3830d5c65159SKalle Valo 3831d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 3832d5c65159SKalle Valo 3833d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 3834d5c65159SKalle Valo 3835d5c65159SKalle Valo if (!total_num_buffs_reaped) 3836d5c65159SKalle Valo goto done; 3837d5c65159SKalle Valo 3838d5c65159SKalle Valo for (i = 0; i < ab->num_radios; i++) { 3839d5c65159SKalle Valo if (!num_buffs_reaped[i]) 3840d5c65159SKalle Valo continue; 3841d5c65159SKalle Valo 3842d5c65159SKalle Valo ar = ab->pdevs[i].ar; 3843d5c65159SKalle Valo rx_ring = &ar->dp.rx_refill_buf_ring; 3844d5c65159SKalle Valo 3845d5c65159SKalle Valo ath11k_dp_rxbufs_replenish(ab, i, rx_ring, num_buffs_reaped[i], 3846d5c65159SKalle Valo HAL_RX_BUF_RBM_SW3_BM, GFP_ATOMIC); 3847d5c65159SKalle Valo } 3848d5c65159SKalle Valo 3849d5c65159SKalle Valo rcu_read_lock(); 3850d5c65159SKalle Valo for (i = 0; i < ab->num_radios; i++) { 3851d5c65159SKalle Valo if (!rcu_dereference(ab->pdevs_active[i])) { 3852d5c65159SKalle Valo __skb_queue_purge(&msdu_list[i]); 3853d5c65159SKalle Valo continue; 3854d5c65159SKalle Valo } 3855d5c65159SKalle Valo 3856d5c65159SKalle Valo ar = ab->pdevs[i].ar; 3857d5c65159SKalle Valo 3858d5c65159SKalle Valo if (test_bit(ATH11K_CAC_RUNNING, &ar->dev_flags)) { 3859d5c65159SKalle Valo __skb_queue_purge(&msdu_list[i]); 3860d5c65159SKalle Valo continue; 3861d5c65159SKalle Valo } 3862d5c65159SKalle Valo 3863d5c65159SKalle Valo while ((msdu = __skb_dequeue(&msdu_list[i])) != NULL) 3864d5c65159SKalle Valo ath11k_dp_rx_wbm_err(ar, napi, msdu, &msdu_list[i]); 3865d5c65159SKalle Valo } 3866d5c65159SKalle Valo rcu_read_unlock(); 3867d5c65159SKalle Valo done: 3868d5c65159SKalle Valo return total_num_buffs_reaped; 3869d5c65159SKalle Valo } 3870d5c65159SKalle Valo 3871d5c65159SKalle Valo int ath11k_dp_process_rxdma_err(struct ath11k_base *ab, int mac_id, int budget) 3872d5c65159SKalle Valo { 3873d5c65159SKalle Valo struct ath11k *ar = ab->pdevs[mac_id].ar; 3874d5c65159SKalle Valo struct dp_srng *err_ring = &ar->dp.rxdma_err_dst_ring; 3875d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring = &ar->dp.rx_refill_buf_ring; 3876d5c65159SKalle Valo struct dp_link_desc_bank *link_desc_banks = ab->dp.link_desc_banks; 3877d5c65159SKalle Valo struct hal_srng *srng; 3878293cb583SJohn Crispin u32 msdu_cookies[HAL_NUM_RX_MSDUS_PER_LINK_DESC]; 3879d5c65159SKalle Valo enum hal_rx_buf_return_buf_manager rbm; 3880d5c65159SKalle Valo enum hal_reo_entr_rxdma_ecode rxdma_err_code; 3881d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb; 3882d5c65159SKalle Valo struct sk_buff *skb; 3883d5c65159SKalle Valo struct hal_reo_entrance_ring *entr_ring; 3884d5c65159SKalle Valo void *desc; 3885d5c65159SKalle Valo int num_buf_freed = 0; 3886d5c65159SKalle Valo int quota = budget; 3887d5c65159SKalle Valo dma_addr_t paddr; 3888d5c65159SKalle Valo u32 desc_bank; 3889d5c65159SKalle Valo void *link_desc_va; 3890d5c65159SKalle Valo int num_msdus; 3891d5c65159SKalle Valo int i; 3892d5c65159SKalle Valo int buf_id; 3893d5c65159SKalle Valo 3894d5c65159SKalle Valo srng = &ab->hal.srng_list[err_ring->ring_id]; 3895d5c65159SKalle Valo 3896d5c65159SKalle Valo spin_lock_bh(&srng->lock); 3897d5c65159SKalle Valo 3898d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 3899d5c65159SKalle Valo 3900d5c65159SKalle Valo while (quota-- && 3901d5c65159SKalle Valo (desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { 3902d5c65159SKalle Valo ath11k_hal_rx_reo_ent_paddr_get(ab, desc, &paddr, &desc_bank); 3903d5c65159SKalle Valo 3904d5c65159SKalle Valo entr_ring = (struct hal_reo_entrance_ring *)desc; 3905d5c65159SKalle Valo rxdma_err_code = 3906d5c65159SKalle Valo FIELD_GET(HAL_REO_ENTR_RING_INFO1_RXDMA_ERROR_CODE, 3907d5c65159SKalle Valo entr_ring->info1); 3908d5c65159SKalle Valo ab->soc_stats.rxdma_error[rxdma_err_code]++; 3909d5c65159SKalle Valo 3910d5c65159SKalle Valo link_desc_va = link_desc_banks[desc_bank].vaddr + 3911d5c65159SKalle Valo (paddr - link_desc_banks[desc_bank].paddr); 3912293cb583SJohn Crispin ath11k_hal_rx_msdu_link_info_get(link_desc_va, &num_msdus, 3913293cb583SJohn Crispin msdu_cookies, &rbm); 3914d5c65159SKalle Valo 3915d5c65159SKalle Valo for (i = 0; i < num_msdus; i++) { 3916d5c65159SKalle Valo buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, 3917293cb583SJohn Crispin msdu_cookies[i]); 3918d5c65159SKalle Valo 3919d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 3920d5c65159SKalle Valo skb = idr_find(&rx_ring->bufs_idr, buf_id); 3921d5c65159SKalle Valo if (!skb) { 3922d5c65159SKalle Valo ath11k_warn(ab, "rxdma error with invalid buf_id %d\n", 3923d5c65159SKalle Valo buf_id); 3924d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 3925d5c65159SKalle Valo continue; 3926d5c65159SKalle Valo } 3927d5c65159SKalle Valo 3928d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 3929d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 3930d5c65159SKalle Valo 3931d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(skb); 3932d5c65159SKalle Valo dma_unmap_single(ab->dev, rxcb->paddr, 3933d5c65159SKalle Valo skb->len + skb_tailroom(skb), 3934d5c65159SKalle Valo DMA_FROM_DEVICE); 3935d5c65159SKalle Valo dev_kfree_skb_any(skb); 3936d5c65159SKalle Valo 3937d5c65159SKalle Valo num_buf_freed++; 3938d5c65159SKalle Valo } 3939d5c65159SKalle Valo 3940d5c65159SKalle Valo ath11k_dp_rx_link_desc_return(ab, desc, 3941d5c65159SKalle Valo HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); 3942d5c65159SKalle Valo } 3943d5c65159SKalle Valo 3944d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 3945d5c65159SKalle Valo 3946d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 3947d5c65159SKalle Valo 3948d5c65159SKalle Valo if (num_buf_freed) 3949d5c65159SKalle Valo ath11k_dp_rxbufs_replenish(ab, mac_id, rx_ring, num_buf_freed, 3950d5c65159SKalle Valo HAL_RX_BUF_RBM_SW3_BM, GFP_ATOMIC); 3951d5c65159SKalle Valo 3952d5c65159SKalle Valo return budget - quota; 3953d5c65159SKalle Valo } 3954d5c65159SKalle Valo 3955d5c65159SKalle Valo void ath11k_dp_process_reo_status(struct ath11k_base *ab) 3956d5c65159SKalle Valo { 3957d5c65159SKalle Valo struct ath11k_dp *dp = &ab->dp; 3958d5c65159SKalle Valo struct hal_srng *srng; 3959d5c65159SKalle Valo struct dp_reo_cmd *cmd, *tmp; 3960d5c65159SKalle Valo bool found = false; 3961d5c65159SKalle Valo u32 *reo_desc; 3962d5c65159SKalle Valo u16 tag; 3963d5c65159SKalle Valo struct hal_reo_status reo_status; 3964d5c65159SKalle Valo 3965d5c65159SKalle Valo srng = &ab->hal.srng_list[dp->reo_status_ring.ring_id]; 3966d5c65159SKalle Valo 3967d5c65159SKalle Valo memset(&reo_status, 0, sizeof(reo_status)); 3968d5c65159SKalle Valo 3969d5c65159SKalle Valo spin_lock_bh(&srng->lock); 3970d5c65159SKalle Valo 3971d5c65159SKalle Valo ath11k_hal_srng_access_begin(ab, srng); 3972d5c65159SKalle Valo 3973d5c65159SKalle Valo while ((reo_desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { 3974d5c65159SKalle Valo tag = FIELD_GET(HAL_SRNG_TLV_HDR_TAG, *reo_desc); 3975d5c65159SKalle Valo 3976d5c65159SKalle Valo switch (tag) { 3977d5c65159SKalle Valo case HAL_REO_GET_QUEUE_STATS_STATUS: 3978d5c65159SKalle Valo ath11k_hal_reo_status_queue_stats(ab, reo_desc, 3979d5c65159SKalle Valo &reo_status); 3980d5c65159SKalle Valo break; 3981d5c65159SKalle Valo case HAL_REO_FLUSH_QUEUE_STATUS: 3982d5c65159SKalle Valo ath11k_hal_reo_flush_queue_status(ab, reo_desc, 3983d5c65159SKalle Valo &reo_status); 3984d5c65159SKalle Valo break; 3985d5c65159SKalle Valo case HAL_REO_FLUSH_CACHE_STATUS: 3986d5c65159SKalle Valo ath11k_hal_reo_flush_cache_status(ab, reo_desc, 3987d5c65159SKalle Valo &reo_status); 3988d5c65159SKalle Valo break; 3989d5c65159SKalle Valo case HAL_REO_UNBLOCK_CACHE_STATUS: 3990d5c65159SKalle Valo ath11k_hal_reo_unblk_cache_status(ab, reo_desc, 3991d5c65159SKalle Valo &reo_status); 3992d5c65159SKalle Valo break; 3993d5c65159SKalle Valo case HAL_REO_FLUSH_TIMEOUT_LIST_STATUS: 3994d5c65159SKalle Valo ath11k_hal_reo_flush_timeout_list_status(ab, reo_desc, 3995d5c65159SKalle Valo &reo_status); 3996d5c65159SKalle Valo break; 3997d5c65159SKalle Valo case HAL_REO_DESCRIPTOR_THRESHOLD_REACHED_STATUS: 3998d5c65159SKalle Valo ath11k_hal_reo_desc_thresh_reached_status(ab, reo_desc, 3999d5c65159SKalle Valo &reo_status); 4000d5c65159SKalle Valo break; 4001d5c65159SKalle Valo case HAL_REO_UPDATE_RX_REO_QUEUE_STATUS: 4002d5c65159SKalle Valo ath11k_hal_reo_update_rx_reo_queue_status(ab, reo_desc, 4003d5c65159SKalle Valo &reo_status); 4004d5c65159SKalle Valo break; 4005d5c65159SKalle Valo default: 4006d5c65159SKalle Valo ath11k_warn(ab, "Unknown reo status type %d\n", tag); 4007d5c65159SKalle Valo continue; 4008d5c65159SKalle Valo } 4009d5c65159SKalle Valo 4010d5c65159SKalle Valo spin_lock_bh(&dp->reo_cmd_lock); 4011d5c65159SKalle Valo list_for_each_entry_safe(cmd, tmp, &dp->reo_cmd_list, list) { 4012d5c65159SKalle Valo if (reo_status.uniform_hdr.cmd_num == cmd->cmd_num) { 4013d5c65159SKalle Valo found = true; 4014d5c65159SKalle Valo list_del(&cmd->list); 4015d5c65159SKalle Valo break; 4016d5c65159SKalle Valo } 4017d5c65159SKalle Valo } 4018d5c65159SKalle Valo spin_unlock_bh(&dp->reo_cmd_lock); 4019d5c65159SKalle Valo 4020d5c65159SKalle Valo if (found) { 4021d5c65159SKalle Valo cmd->handler(dp, (void *)&cmd->data, 4022d5c65159SKalle Valo reo_status.uniform_hdr.cmd_status); 4023d5c65159SKalle Valo kfree(cmd); 4024d5c65159SKalle Valo } 4025d5c65159SKalle Valo 4026d5c65159SKalle Valo found = false; 4027d5c65159SKalle Valo } 4028d5c65159SKalle Valo 4029d5c65159SKalle Valo ath11k_hal_srng_access_end(ab, srng); 4030d5c65159SKalle Valo 4031d5c65159SKalle Valo spin_unlock_bh(&srng->lock); 4032d5c65159SKalle Valo } 4033d5c65159SKalle Valo 4034d5c65159SKalle Valo void ath11k_dp_rx_pdev_free(struct ath11k_base *ab, int mac_id) 4035d5c65159SKalle Valo { 4036d5c65159SKalle Valo struct ath11k *ar = ab->pdevs[mac_id].ar; 4037d5c65159SKalle Valo 4038d5c65159SKalle Valo ath11k_dp_rx_pdev_srng_free(ar); 4039d5c65159SKalle Valo ath11k_dp_rxdma_pdev_buf_free(ar); 4040d5c65159SKalle Valo } 4041d5c65159SKalle Valo 4042d5c65159SKalle Valo int ath11k_dp_rx_pdev_alloc(struct ath11k_base *ab, int mac_id) 4043d5c65159SKalle Valo { 4044d5c65159SKalle Valo struct ath11k *ar = ab->pdevs[mac_id].ar; 4045d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4046d5c65159SKalle Valo u32 ring_id; 4047d5c65159SKalle Valo int ret; 4048d5c65159SKalle Valo 4049d5c65159SKalle Valo ret = ath11k_dp_rx_pdev_srng_alloc(ar); 4050d5c65159SKalle Valo if (ret) { 4051d5c65159SKalle Valo ath11k_warn(ab, "failed to setup rx srngs\n"); 4052d5c65159SKalle Valo return ret; 4053d5c65159SKalle Valo } 4054d5c65159SKalle Valo 4055d5c65159SKalle Valo ret = ath11k_dp_rxdma_pdev_buf_setup(ar); 4056d5c65159SKalle Valo if (ret) { 4057d5c65159SKalle Valo ath11k_warn(ab, "failed to setup rxdma ring\n"); 4058d5c65159SKalle Valo return ret; 4059d5c65159SKalle Valo } 4060d5c65159SKalle Valo 4061d5c65159SKalle Valo ring_id = dp->rx_refill_buf_ring.refill_buf_ring.ring_id; 4062d5c65159SKalle Valo ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, mac_id, HAL_RXDMA_BUF); 4063d5c65159SKalle Valo if (ret) { 4064d5c65159SKalle Valo ath11k_warn(ab, "failed to configure rx_refill_buf_ring %d\n", 4065d5c65159SKalle Valo ret); 4066d5c65159SKalle Valo return ret; 4067d5c65159SKalle Valo } 4068d5c65159SKalle Valo 4069d5c65159SKalle Valo ring_id = dp->rxdma_err_dst_ring.ring_id; 4070d5c65159SKalle Valo ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, mac_id, HAL_RXDMA_DST); 4071d5c65159SKalle Valo if (ret) { 4072d5c65159SKalle Valo ath11k_warn(ab, "failed to configure rxdma_err_dest_ring %d\n", 4073d5c65159SKalle Valo ret); 4074d5c65159SKalle Valo return ret; 4075d5c65159SKalle Valo } 4076d5c65159SKalle Valo 4077d5c65159SKalle Valo ring_id = dp->rxdma_mon_buf_ring.refill_buf_ring.ring_id; 4078d5c65159SKalle Valo ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, 4079d5c65159SKalle Valo mac_id, HAL_RXDMA_MONITOR_BUF); 4080d5c65159SKalle Valo if (ret) { 4081d5c65159SKalle Valo ath11k_warn(ab, "failed to configure rxdma_mon_buf_ring %d\n", 4082d5c65159SKalle Valo ret); 4083d5c65159SKalle Valo return ret; 4084d5c65159SKalle Valo } 4085d5c65159SKalle Valo ret = ath11k_dp_tx_htt_srng_setup(ab, 4086d5c65159SKalle Valo dp->rxdma_mon_dst_ring.ring_id, 4087d5c65159SKalle Valo mac_id, HAL_RXDMA_MONITOR_DST); 4088d5c65159SKalle Valo if (ret) { 4089d5c65159SKalle Valo ath11k_warn(ab, "failed to configure rxdma_mon_dst_ring %d\n", 4090d5c65159SKalle Valo ret); 4091d5c65159SKalle Valo return ret; 4092d5c65159SKalle Valo } 4093d5c65159SKalle Valo ret = ath11k_dp_tx_htt_srng_setup(ab, 4094d5c65159SKalle Valo dp->rxdma_mon_desc_ring.ring_id, 4095d5c65159SKalle Valo mac_id, HAL_RXDMA_MONITOR_DESC); 4096d5c65159SKalle Valo if (ret) { 4097d5c65159SKalle Valo ath11k_warn(ab, "failed to configure rxdma_mon_dst_ring %d\n", 4098d5c65159SKalle Valo ret); 4099d5c65159SKalle Valo return ret; 4100d5c65159SKalle Valo } 4101d5c65159SKalle Valo ring_id = dp->rx_mon_status_refill_ring.refill_buf_ring.ring_id; 4102d5c65159SKalle Valo ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, mac_id, 4103d5c65159SKalle Valo HAL_RXDMA_MONITOR_STATUS); 4104d5c65159SKalle Valo if (ret) { 4105d5c65159SKalle Valo ath11k_warn(ab, 4106d5c65159SKalle Valo "failed to configure mon_status_refill_ring %d\n", 4107d5c65159SKalle Valo ret); 4108d5c65159SKalle Valo return ret; 4109d5c65159SKalle Valo } 4110d5c65159SKalle Valo return 0; 4111d5c65159SKalle Valo } 4112d5c65159SKalle Valo 4113d5c65159SKalle Valo static void ath11k_dp_mon_set_frag_len(u32 *total_len, u32 *frag_len) 4114d5c65159SKalle Valo { 4115d5c65159SKalle Valo if (*total_len >= (DP_RX_BUFFER_SIZE - sizeof(struct hal_rx_desc))) { 4116d5c65159SKalle Valo *frag_len = DP_RX_BUFFER_SIZE - sizeof(struct hal_rx_desc); 4117d5c65159SKalle Valo *total_len -= *frag_len; 4118d5c65159SKalle Valo } else { 4119d5c65159SKalle Valo *frag_len = *total_len; 4120d5c65159SKalle Valo *total_len = 0; 4121d5c65159SKalle Valo } 4122d5c65159SKalle Valo } 4123d5c65159SKalle Valo 4124d5c65159SKalle Valo static 4125d5c65159SKalle Valo int ath11k_dp_rx_monitor_link_desc_return(struct ath11k *ar, 4126d5c65159SKalle Valo void *p_last_buf_addr_info, 4127d5c65159SKalle Valo u8 mac_id) 4128d5c65159SKalle Valo { 4129d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4130d5c65159SKalle Valo struct dp_srng *dp_srng; 4131d5c65159SKalle Valo void *hal_srng; 4132d5c65159SKalle Valo void *src_srng_desc; 4133d5c65159SKalle Valo int ret = 0; 4134d5c65159SKalle Valo 4135d5c65159SKalle Valo dp_srng = &dp->rxdma_mon_desc_ring; 4136d5c65159SKalle Valo hal_srng = &ar->ab->hal.srng_list[dp_srng->ring_id]; 4137d5c65159SKalle Valo 4138d5c65159SKalle Valo ath11k_hal_srng_access_begin(ar->ab, hal_srng); 4139d5c65159SKalle Valo 4140d5c65159SKalle Valo src_srng_desc = ath11k_hal_srng_src_get_next_entry(ar->ab, hal_srng); 4141d5c65159SKalle Valo 4142d5c65159SKalle Valo if (src_srng_desc) { 4143d5c65159SKalle Valo struct ath11k_buffer_addr *src_desc = 4144d5c65159SKalle Valo (struct ath11k_buffer_addr *)src_srng_desc; 4145d5c65159SKalle Valo 4146d5c65159SKalle Valo *src_desc = *((struct ath11k_buffer_addr *)p_last_buf_addr_info); 4147d5c65159SKalle Valo } else { 4148d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4149d5c65159SKalle Valo "Monitor Link Desc Ring %d Full", mac_id); 4150d5c65159SKalle Valo ret = -ENOMEM; 4151d5c65159SKalle Valo } 4152d5c65159SKalle Valo 4153d5c65159SKalle Valo ath11k_hal_srng_access_end(ar->ab, hal_srng); 4154d5c65159SKalle Valo return ret; 4155d5c65159SKalle Valo } 4156d5c65159SKalle Valo 4157d5c65159SKalle Valo static 4158d5c65159SKalle Valo void ath11k_dp_rx_mon_next_link_desc_get(void *rx_msdu_link_desc, 4159d5c65159SKalle Valo dma_addr_t *paddr, u32 *sw_cookie, 4160d5c65159SKalle Valo void **pp_buf_addr_info) 4161d5c65159SKalle Valo { 4162d5c65159SKalle Valo struct hal_rx_msdu_link *msdu_link = 4163d5c65159SKalle Valo (struct hal_rx_msdu_link *)rx_msdu_link_desc; 4164d5c65159SKalle Valo struct ath11k_buffer_addr *buf_addr_info; 4165d5c65159SKalle Valo u8 rbm = 0; 4166d5c65159SKalle Valo 4167d5c65159SKalle Valo buf_addr_info = (struct ath11k_buffer_addr *)&msdu_link->buf_addr_info; 4168d5c65159SKalle Valo 4169d5c65159SKalle Valo ath11k_hal_rx_buf_addr_info_get(buf_addr_info, paddr, sw_cookie, &rbm); 4170d5c65159SKalle Valo 4171d5c65159SKalle Valo *pp_buf_addr_info = (void *)buf_addr_info; 4172d5c65159SKalle Valo } 4173d5c65159SKalle Valo 4174d5c65159SKalle Valo static int ath11k_dp_pkt_set_pktlen(struct sk_buff *skb, u32 len) 4175d5c65159SKalle Valo { 4176d5c65159SKalle Valo if (skb->len > len) { 4177d5c65159SKalle Valo skb_trim(skb, len); 4178d5c65159SKalle Valo } else { 4179d5c65159SKalle Valo if (skb_tailroom(skb) < len - skb->len) { 4180d5c65159SKalle Valo if ((pskb_expand_head(skb, 0, 4181d5c65159SKalle Valo len - skb->len - skb_tailroom(skb), 4182d5c65159SKalle Valo GFP_ATOMIC))) { 4183d5c65159SKalle Valo dev_kfree_skb_any(skb); 4184d5c65159SKalle Valo return -ENOMEM; 4185d5c65159SKalle Valo } 4186d5c65159SKalle Valo } 4187d5c65159SKalle Valo skb_put(skb, (len - skb->len)); 4188d5c65159SKalle Valo } 4189d5c65159SKalle Valo return 0; 4190d5c65159SKalle Valo } 4191d5c65159SKalle Valo 4192d5c65159SKalle Valo static void ath11k_hal_rx_msdu_list_get(struct ath11k *ar, 4193d5c65159SKalle Valo void *msdu_link_desc, 4194d5c65159SKalle Valo struct hal_rx_msdu_list *msdu_list, 4195d5c65159SKalle Valo u16 *num_msdus) 4196d5c65159SKalle Valo { 4197d5c65159SKalle Valo struct hal_rx_msdu_details *msdu_details = NULL; 4198d5c65159SKalle Valo struct rx_msdu_desc *msdu_desc_info = NULL; 4199d5c65159SKalle Valo struct hal_rx_msdu_link *msdu_link = NULL; 4200d5c65159SKalle Valo int i; 4201d5c65159SKalle Valo u32 last = FIELD_PREP(RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU, 1); 4202d5c65159SKalle Valo u32 first = FIELD_PREP(RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU, 1); 4203d5c65159SKalle Valo u8 tmp = 0; 4204d5c65159SKalle Valo 4205d5c65159SKalle Valo msdu_link = (struct hal_rx_msdu_link *)msdu_link_desc; 4206d5c65159SKalle Valo msdu_details = &msdu_link->msdu_link[0]; 4207d5c65159SKalle Valo 4208d5c65159SKalle Valo for (i = 0; i < HAL_RX_NUM_MSDU_DESC; i++) { 4209d5c65159SKalle Valo if (FIELD_GET(BUFFER_ADDR_INFO0_ADDR, 4210d5c65159SKalle Valo msdu_details[i].buf_addr_info.info0) == 0) { 4211d5c65159SKalle Valo msdu_desc_info = &msdu_details[i - 1].rx_msdu_info; 4212d5c65159SKalle Valo msdu_desc_info->info0 |= last; 4213d5c65159SKalle Valo ; 4214d5c65159SKalle Valo break; 4215d5c65159SKalle Valo } 4216d5c65159SKalle Valo msdu_desc_info = &msdu_details[i].rx_msdu_info; 4217d5c65159SKalle Valo 4218d5c65159SKalle Valo if (!i) 4219d5c65159SKalle Valo msdu_desc_info->info0 |= first; 4220d5c65159SKalle Valo else if (i == (HAL_RX_NUM_MSDU_DESC - 1)) 4221d5c65159SKalle Valo msdu_desc_info->info0 |= last; 4222d5c65159SKalle Valo msdu_list->msdu_info[i].msdu_flags = msdu_desc_info->info0; 4223d5c65159SKalle Valo msdu_list->msdu_info[i].msdu_len = 4224d5c65159SKalle Valo HAL_RX_MSDU_PKT_LENGTH_GET(msdu_desc_info->info0); 4225d5c65159SKalle Valo msdu_list->sw_cookie[i] = 4226d5c65159SKalle Valo FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE, 4227d5c65159SKalle Valo msdu_details[i].buf_addr_info.info1); 4228d5c65159SKalle Valo tmp = FIELD_GET(BUFFER_ADDR_INFO1_RET_BUF_MGR, 4229d5c65159SKalle Valo msdu_details[i].buf_addr_info.info1); 4230d5c65159SKalle Valo msdu_list->rbm[i] = tmp; 4231d5c65159SKalle Valo } 4232d5c65159SKalle Valo *num_msdus = i; 4233d5c65159SKalle Valo } 4234d5c65159SKalle Valo 4235d5c65159SKalle Valo static u32 ath11k_dp_rx_mon_comp_ppduid(u32 msdu_ppdu_id, u32 *ppdu_id, 4236d5c65159SKalle Valo u32 *rx_bufs_used) 4237d5c65159SKalle Valo { 4238d5c65159SKalle Valo u32 ret = 0; 4239d5c65159SKalle Valo 4240d5c65159SKalle Valo if ((*ppdu_id < msdu_ppdu_id) && 4241d5c65159SKalle Valo ((msdu_ppdu_id - *ppdu_id) < DP_NOT_PPDU_ID_WRAP_AROUND)) { 4242d5c65159SKalle Valo *ppdu_id = msdu_ppdu_id; 4243d5c65159SKalle Valo ret = msdu_ppdu_id; 4244d5c65159SKalle Valo } else if ((*ppdu_id > msdu_ppdu_id) && 4245d5c65159SKalle Valo ((*ppdu_id - msdu_ppdu_id) > DP_NOT_PPDU_ID_WRAP_AROUND)) { 4246d5c65159SKalle Valo /* mon_dst is behind than mon_status 4247d5c65159SKalle Valo * skip dst_ring and free it 4248d5c65159SKalle Valo */ 4249d5c65159SKalle Valo *rx_bufs_used += 1; 4250d5c65159SKalle Valo *ppdu_id = msdu_ppdu_id; 4251d5c65159SKalle Valo ret = msdu_ppdu_id; 4252d5c65159SKalle Valo } 4253d5c65159SKalle Valo return ret; 4254d5c65159SKalle Valo } 4255d5c65159SKalle Valo 4256d5c65159SKalle Valo static void ath11k_dp_mon_get_buf_len(struct hal_rx_msdu_desc_info *info, 4257d5c65159SKalle Valo bool *is_frag, u32 *total_len, 4258d5c65159SKalle Valo u32 *frag_len, u32 *msdu_cnt) 4259d5c65159SKalle Valo { 4260d5c65159SKalle Valo if (info->msdu_flags & RX_MSDU_DESC_INFO0_MSDU_CONTINUATION) { 4261d5c65159SKalle Valo if (!*is_frag) { 4262d5c65159SKalle Valo *total_len = info->msdu_len; 4263d5c65159SKalle Valo *is_frag = true; 4264d5c65159SKalle Valo } 4265d5c65159SKalle Valo ath11k_dp_mon_set_frag_len(total_len, 4266d5c65159SKalle Valo frag_len); 4267d5c65159SKalle Valo } else { 4268d5c65159SKalle Valo if (*is_frag) { 4269d5c65159SKalle Valo ath11k_dp_mon_set_frag_len(total_len, 4270d5c65159SKalle Valo frag_len); 4271d5c65159SKalle Valo } else { 4272d5c65159SKalle Valo *frag_len = info->msdu_len; 4273d5c65159SKalle Valo } 4274d5c65159SKalle Valo *is_frag = false; 4275d5c65159SKalle Valo *msdu_cnt -= 1; 4276d5c65159SKalle Valo } 4277d5c65159SKalle Valo } 4278d5c65159SKalle Valo 4279d5c65159SKalle Valo static u32 4280d5c65159SKalle Valo ath11k_dp_rx_mon_mpdu_pop(struct ath11k *ar, 4281d5c65159SKalle Valo void *ring_entry, struct sk_buff **head_msdu, 4282d5c65159SKalle Valo struct sk_buff **tail_msdu, u32 *npackets, 4283d5c65159SKalle Valo u32 *ppdu_id) 4284d5c65159SKalle Valo { 4285d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4286d5c65159SKalle Valo struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; 4287d5c65159SKalle Valo struct dp_rxdma_ring *rx_ring = &dp->rxdma_mon_buf_ring; 4288d5c65159SKalle Valo struct sk_buff *msdu = NULL, *last = NULL; 4289d5c65159SKalle Valo struct hal_rx_msdu_list msdu_list; 4290d5c65159SKalle Valo void *p_buf_addr_info, *p_last_buf_addr_info; 4291d5c65159SKalle Valo struct hal_rx_desc *rx_desc; 4292d5c65159SKalle Valo void *rx_msdu_link_desc; 4293d5c65159SKalle Valo dma_addr_t paddr; 4294d5c65159SKalle Valo u16 num_msdus = 0; 4295d5c65159SKalle Valo u32 rx_buf_size, rx_pkt_offset, sw_cookie; 4296d5c65159SKalle Valo u32 rx_bufs_used = 0, i = 0; 4297d5c65159SKalle Valo u32 msdu_ppdu_id = 0, msdu_cnt = 0; 4298d5c65159SKalle Valo u32 total_len = 0, frag_len = 0; 4299d5c65159SKalle Valo bool is_frag, is_first_msdu; 4300d5c65159SKalle Valo bool drop_mpdu = false; 4301d5c65159SKalle Valo struct ath11k_skb_rxcb *rxcb; 4302d5c65159SKalle Valo struct hal_reo_entrance_ring *ent_desc = 4303d5c65159SKalle Valo (struct hal_reo_entrance_ring *)ring_entry; 4304d5c65159SKalle Valo int buf_id; 4305d5c65159SKalle Valo 4306d5c65159SKalle Valo ath11k_hal_rx_reo_ent_buf_paddr_get(ring_entry, &paddr, 4307d5c65159SKalle Valo &sw_cookie, &p_last_buf_addr_info, 4308d5c65159SKalle Valo &msdu_cnt); 4309d5c65159SKalle Valo 4310d5c65159SKalle Valo if (FIELD_GET(HAL_REO_ENTR_RING_INFO1_RXDMA_PUSH_REASON, 4311d5c65159SKalle Valo ent_desc->info1) == 4312d5c65159SKalle Valo HAL_REO_DEST_RING_PUSH_REASON_ERR_DETECTED) { 4313d5c65159SKalle Valo u8 rxdma_err = 4314d5c65159SKalle Valo FIELD_GET(HAL_REO_ENTR_RING_INFO1_RXDMA_ERROR_CODE, 4315d5c65159SKalle Valo ent_desc->info1); 4316d5c65159SKalle Valo if (rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_FLUSH_REQUEST_ERR || 4317d5c65159SKalle Valo rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_MPDU_LEN_ERR || 4318d5c65159SKalle Valo rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_OVERFLOW_ERR) { 4319d5c65159SKalle Valo drop_mpdu = true; 4320d5c65159SKalle Valo pmon->rx_mon_stats.dest_mpdu_drop++; 4321d5c65159SKalle Valo } 4322d5c65159SKalle Valo } 4323d5c65159SKalle Valo 4324d5c65159SKalle Valo is_frag = false; 4325d5c65159SKalle Valo is_first_msdu = true; 4326d5c65159SKalle Valo 4327d5c65159SKalle Valo do { 4328d5c65159SKalle Valo if (pmon->mon_last_linkdesc_paddr == paddr) { 4329d5c65159SKalle Valo pmon->rx_mon_stats.dup_mon_linkdesc_cnt++; 4330d5c65159SKalle Valo return rx_bufs_used; 4331d5c65159SKalle Valo } 4332d5c65159SKalle Valo 4333d5c65159SKalle Valo rx_msdu_link_desc = 4334d5c65159SKalle Valo (void *)pmon->link_desc_banks[sw_cookie].vaddr + 4335d5c65159SKalle Valo (paddr - pmon->link_desc_banks[sw_cookie].paddr); 4336d5c65159SKalle Valo 4337d5c65159SKalle Valo ath11k_hal_rx_msdu_list_get(ar, rx_msdu_link_desc, &msdu_list, 4338d5c65159SKalle Valo &num_msdus); 4339d5c65159SKalle Valo 4340d5c65159SKalle Valo for (i = 0; i < num_msdus; i++) { 4341d5c65159SKalle Valo u32 l2_hdr_offset; 4342d5c65159SKalle Valo 4343d5c65159SKalle Valo if (pmon->mon_last_buf_cookie == msdu_list.sw_cookie[i]) { 4344d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4345d5c65159SKalle Valo "i %d last_cookie %d is same\n", 4346d5c65159SKalle Valo i, pmon->mon_last_buf_cookie); 4347d5c65159SKalle Valo drop_mpdu = true; 4348d5c65159SKalle Valo pmon->rx_mon_stats.dup_mon_buf_cnt++; 4349d5c65159SKalle Valo continue; 4350d5c65159SKalle Valo } 4351d5c65159SKalle Valo buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, 4352d5c65159SKalle Valo msdu_list.sw_cookie[i]); 4353d5c65159SKalle Valo 4354d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 4355d5c65159SKalle Valo msdu = idr_find(&rx_ring->bufs_idr, buf_id); 4356d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 4357d5c65159SKalle Valo if (!msdu) { 4358d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4359d5c65159SKalle Valo "msdu_pop: invalid buf_id %d\n", buf_id); 4360d5c65159SKalle Valo break; 4361d5c65159SKalle Valo } 4362d5c65159SKalle Valo rxcb = ATH11K_SKB_RXCB(msdu); 4363d5c65159SKalle Valo if (!rxcb->unmapped) { 4364d5c65159SKalle Valo dma_unmap_single(ar->ab->dev, rxcb->paddr, 4365d5c65159SKalle Valo msdu->len + 4366d5c65159SKalle Valo skb_tailroom(msdu), 4367d5c65159SKalle Valo DMA_FROM_DEVICE); 4368d5c65159SKalle Valo rxcb->unmapped = 1; 4369d5c65159SKalle Valo } 4370d5c65159SKalle Valo if (drop_mpdu) { 4371d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4372d5c65159SKalle Valo "i %d drop msdu %p *ppdu_id %x\n", 4373d5c65159SKalle Valo i, msdu, *ppdu_id); 4374d5c65159SKalle Valo dev_kfree_skb_any(msdu); 4375d5c65159SKalle Valo msdu = NULL; 4376d5c65159SKalle Valo goto next_msdu; 4377d5c65159SKalle Valo } 4378d5c65159SKalle Valo 4379d5c65159SKalle Valo rx_desc = (struct hal_rx_desc *)msdu->data; 4380d5c65159SKalle Valo 4381d5c65159SKalle Valo rx_pkt_offset = sizeof(struct hal_rx_desc); 4382d5c65159SKalle Valo l2_hdr_offset = ath11k_dp_rx_h_msdu_end_l3pad(rx_desc); 4383d5c65159SKalle Valo 4384d5c65159SKalle Valo if (is_first_msdu) { 4385d5c65159SKalle Valo if (!ath11k_dp_rxdesc_mpdu_valid(rx_desc)) { 4386d5c65159SKalle Valo drop_mpdu = true; 4387d5c65159SKalle Valo dev_kfree_skb_any(msdu); 4388d5c65159SKalle Valo msdu = NULL; 4389d5c65159SKalle Valo pmon->mon_last_linkdesc_paddr = paddr; 4390d5c65159SKalle Valo goto next_msdu; 4391d5c65159SKalle Valo } 4392d5c65159SKalle Valo 4393d5c65159SKalle Valo msdu_ppdu_id = 4394d5c65159SKalle Valo ath11k_dp_rxdesc_get_ppduid(rx_desc); 4395d5c65159SKalle Valo 4396d5c65159SKalle Valo if (ath11k_dp_rx_mon_comp_ppduid(msdu_ppdu_id, 4397d5c65159SKalle Valo ppdu_id, 43985e02bc73SMiles Hu &rx_bufs_used)) { 43995e02bc73SMiles Hu if (rx_bufs_used) { 44005e02bc73SMiles Hu drop_mpdu = true; 44015e02bc73SMiles Hu dev_kfree_skb_any(msdu); 44025e02bc73SMiles Hu msdu = NULL; 44035e02bc73SMiles Hu goto next_msdu; 44045e02bc73SMiles Hu } 4405d5c65159SKalle Valo return rx_bufs_used; 44065e02bc73SMiles Hu } 4407d5c65159SKalle Valo pmon->mon_last_linkdesc_paddr = paddr; 4408d5c65159SKalle Valo is_first_msdu = false; 4409d5c65159SKalle Valo } 4410d5c65159SKalle Valo ath11k_dp_mon_get_buf_len(&msdu_list.msdu_info[i], 4411d5c65159SKalle Valo &is_frag, &total_len, 4412d5c65159SKalle Valo &frag_len, &msdu_cnt); 4413d5c65159SKalle Valo rx_buf_size = rx_pkt_offset + l2_hdr_offset + frag_len; 4414d5c65159SKalle Valo 4415d5c65159SKalle Valo ath11k_dp_pkt_set_pktlen(msdu, rx_buf_size); 4416d5c65159SKalle Valo 4417d5c65159SKalle Valo if (!(*head_msdu)) 4418d5c65159SKalle Valo *head_msdu = msdu; 4419d5c65159SKalle Valo else if (last) 4420d5c65159SKalle Valo last->next = msdu; 4421d5c65159SKalle Valo 4422d5c65159SKalle Valo last = msdu; 4423d5c65159SKalle Valo next_msdu: 4424d5c65159SKalle Valo pmon->mon_last_buf_cookie = msdu_list.sw_cookie[i]; 4425d5c65159SKalle Valo rx_bufs_used++; 4426d5c65159SKalle Valo spin_lock_bh(&rx_ring->idr_lock); 4427d5c65159SKalle Valo idr_remove(&rx_ring->bufs_idr, buf_id); 4428d5c65159SKalle Valo spin_unlock_bh(&rx_ring->idr_lock); 4429d5c65159SKalle Valo } 4430d5c65159SKalle Valo 4431d5c65159SKalle Valo ath11k_dp_rx_mon_next_link_desc_get(rx_msdu_link_desc, &paddr, 4432d5c65159SKalle Valo &sw_cookie, 4433d5c65159SKalle Valo &p_buf_addr_info); 4434d5c65159SKalle Valo 4435d5c65159SKalle Valo if (ath11k_dp_rx_monitor_link_desc_return(ar, 4436d5c65159SKalle Valo p_last_buf_addr_info, 4437d5c65159SKalle Valo dp->mac_id)) 4438d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4439d5c65159SKalle Valo "dp_rx_monitor_link_desc_return failed"); 4440d5c65159SKalle Valo 4441d5c65159SKalle Valo p_last_buf_addr_info = p_buf_addr_info; 4442d5c65159SKalle Valo 4443d5c65159SKalle Valo } while (paddr && msdu_cnt); 4444d5c65159SKalle Valo 4445d5c65159SKalle Valo if (last) 4446d5c65159SKalle Valo last->next = NULL; 4447d5c65159SKalle Valo 4448d5c65159SKalle Valo *tail_msdu = msdu; 4449d5c65159SKalle Valo 4450d5c65159SKalle Valo if (msdu_cnt == 0) 4451d5c65159SKalle Valo *npackets = 1; 4452d5c65159SKalle Valo 4453d5c65159SKalle Valo return rx_bufs_used; 4454d5c65159SKalle Valo } 4455d5c65159SKalle Valo 4456d5c65159SKalle Valo static void ath11k_dp_rx_msdus_set_payload(struct sk_buff *msdu) 4457d5c65159SKalle Valo { 4458d5c65159SKalle Valo u32 rx_pkt_offset, l2_hdr_offset; 4459d5c65159SKalle Valo 4460d5c65159SKalle Valo rx_pkt_offset = sizeof(struct hal_rx_desc); 4461d5c65159SKalle Valo l2_hdr_offset = ath11k_dp_rx_h_msdu_end_l3pad((struct hal_rx_desc *)msdu->data); 4462d5c65159SKalle Valo skb_pull(msdu, rx_pkt_offset + l2_hdr_offset); 4463d5c65159SKalle Valo } 4464d5c65159SKalle Valo 4465d5c65159SKalle Valo static struct sk_buff * 4466d5c65159SKalle Valo ath11k_dp_rx_mon_merg_msdus(struct ath11k *ar, 4467d5c65159SKalle Valo u32 mac_id, struct sk_buff *head_msdu, 4468d5c65159SKalle Valo struct sk_buff *last_msdu, 4469d5c65159SKalle Valo struct ieee80211_rx_status *rxs) 4470d5c65159SKalle Valo { 4471d5c65159SKalle Valo struct sk_buff *msdu, *mpdu_buf, *prev_buf; 4472d5c65159SKalle Valo u32 decap_format, wifi_hdr_len; 4473d5c65159SKalle Valo struct hal_rx_desc *rx_desc; 4474d5c65159SKalle Valo char *hdr_desc; 4475d5c65159SKalle Valo u8 *dest; 4476d5c65159SKalle Valo struct ieee80211_hdr_3addr *wh; 4477d5c65159SKalle Valo 4478d5c65159SKalle Valo mpdu_buf = NULL; 4479d5c65159SKalle Valo 4480d5c65159SKalle Valo if (!head_msdu) 4481d5c65159SKalle Valo goto err_merge_fail; 4482d5c65159SKalle Valo 4483d5c65159SKalle Valo rx_desc = (struct hal_rx_desc *)head_msdu->data; 4484d5c65159SKalle Valo 4485d5c65159SKalle Valo if (ath11k_dp_rxdesc_get_mpdulen_err(rx_desc)) 4486d5c65159SKalle Valo return NULL; 4487d5c65159SKalle Valo 4488d5c65159SKalle Valo decap_format = ath11k_dp_rxdesc_get_decap_format(rx_desc); 4489d5c65159SKalle Valo 4490d5c65159SKalle Valo ath11k_dp_rx_h_ppdu(ar, rx_desc, rxs); 4491d5c65159SKalle Valo 4492d5c65159SKalle Valo if (decap_format == DP_RX_DECAP_TYPE_RAW) { 4493d5c65159SKalle Valo ath11k_dp_rx_msdus_set_payload(head_msdu); 4494d5c65159SKalle Valo 4495d5c65159SKalle Valo prev_buf = head_msdu; 4496d5c65159SKalle Valo msdu = head_msdu->next; 4497d5c65159SKalle Valo 4498d5c65159SKalle Valo while (msdu) { 4499d5c65159SKalle Valo ath11k_dp_rx_msdus_set_payload(msdu); 4500d5c65159SKalle Valo 4501d5c65159SKalle Valo prev_buf = msdu; 4502d5c65159SKalle Valo msdu = msdu->next; 4503d5c65159SKalle Valo } 4504d5c65159SKalle Valo 4505d5c65159SKalle Valo prev_buf->next = NULL; 4506d5c65159SKalle Valo 4507d5c65159SKalle Valo skb_trim(prev_buf, prev_buf->len - HAL_RX_FCS_LEN); 4508d5c65159SKalle Valo } else if (decap_format == DP_RX_DECAP_TYPE_NATIVE_WIFI) { 4509d5c65159SKalle Valo __le16 qos_field; 4510d5c65159SKalle Valo u8 qos_pkt = 0; 4511d5c65159SKalle Valo 4512d5c65159SKalle Valo rx_desc = (struct hal_rx_desc *)head_msdu->data; 4513d5c65159SKalle Valo hdr_desc = ath11k_dp_rxdesc_get_80211hdr(rx_desc); 4514d5c65159SKalle Valo 4515d5c65159SKalle Valo /* Base size */ 4516d5c65159SKalle Valo wifi_hdr_len = sizeof(struct ieee80211_hdr_3addr); 4517d5c65159SKalle Valo wh = (struct ieee80211_hdr_3addr *)hdr_desc; 4518d5c65159SKalle Valo 4519d5c65159SKalle Valo if (ieee80211_is_data_qos(wh->frame_control)) { 4520d5c65159SKalle Valo struct ieee80211_qos_hdr *qwh = 4521d5c65159SKalle Valo (struct ieee80211_qos_hdr *)hdr_desc; 4522d5c65159SKalle Valo 4523d5c65159SKalle Valo qos_field = qwh->qos_ctrl; 4524d5c65159SKalle Valo qos_pkt = 1; 4525d5c65159SKalle Valo } 4526d5c65159SKalle Valo msdu = head_msdu; 4527d5c65159SKalle Valo 4528d5c65159SKalle Valo while (msdu) { 4529d5c65159SKalle Valo rx_desc = (struct hal_rx_desc *)msdu->data; 4530d5c65159SKalle Valo hdr_desc = ath11k_dp_rxdesc_get_80211hdr(rx_desc); 4531d5c65159SKalle Valo 4532d5c65159SKalle Valo if (qos_pkt) { 4533d5c65159SKalle Valo dest = skb_push(msdu, sizeof(__le16)); 4534d5c65159SKalle Valo if (!dest) 4535d5c65159SKalle Valo goto err_merge_fail; 4536d5c65159SKalle Valo memcpy(dest, hdr_desc, wifi_hdr_len); 4537d5c65159SKalle Valo memcpy(dest + wifi_hdr_len, 4538d5c65159SKalle Valo (u8 *)&qos_field, sizeof(__le16)); 4539d5c65159SKalle Valo } 4540d5c65159SKalle Valo ath11k_dp_rx_msdus_set_payload(msdu); 4541d5c65159SKalle Valo prev_buf = msdu; 4542d5c65159SKalle Valo msdu = msdu->next; 4543d5c65159SKalle Valo } 4544d5c65159SKalle Valo dest = skb_put(prev_buf, HAL_RX_FCS_LEN); 4545d5c65159SKalle Valo if (!dest) 4546d5c65159SKalle Valo goto err_merge_fail; 4547d5c65159SKalle Valo 4548d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4549d5c65159SKalle Valo "mpdu_buf %pK mpdu_buf->len %u", 4550d5c65159SKalle Valo prev_buf, prev_buf->len); 4551d5c65159SKalle Valo } else { 4552d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4553d5c65159SKalle Valo "decap format %d is not supported!\n", 4554d5c65159SKalle Valo decap_format); 4555d5c65159SKalle Valo goto err_merge_fail; 4556d5c65159SKalle Valo } 4557d5c65159SKalle Valo 4558d5c65159SKalle Valo return head_msdu; 4559d5c65159SKalle Valo 4560d5c65159SKalle Valo err_merge_fail: 4561d5c65159SKalle Valo if (mpdu_buf && decap_format != DP_RX_DECAP_TYPE_RAW) { 4562d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4563d5c65159SKalle Valo "err_merge_fail mpdu_buf %pK", mpdu_buf); 4564d5c65159SKalle Valo /* Free the head buffer */ 4565d5c65159SKalle Valo dev_kfree_skb_any(mpdu_buf); 4566d5c65159SKalle Valo } 4567d5c65159SKalle Valo return NULL; 4568d5c65159SKalle Valo } 4569d5c65159SKalle Valo 4570d5c65159SKalle Valo static int ath11k_dp_rx_mon_deliver(struct ath11k *ar, u32 mac_id, 4571d5c65159SKalle Valo struct sk_buff *head_msdu, 4572d5c65159SKalle Valo struct sk_buff *tail_msdu, 4573d5c65159SKalle Valo struct napi_struct *napi) 4574d5c65159SKalle Valo { 4575d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4576d5c65159SKalle Valo struct sk_buff *mon_skb, *skb_next, *header; 4577d5c65159SKalle Valo struct ieee80211_rx_status *rxs = &dp->rx_status, *status; 4578d5c65159SKalle Valo 4579d5c65159SKalle Valo mon_skb = ath11k_dp_rx_mon_merg_msdus(ar, mac_id, head_msdu, 4580d5c65159SKalle Valo tail_msdu, rxs); 4581d5c65159SKalle Valo 4582d5c65159SKalle Valo if (!mon_skb) 4583d5c65159SKalle Valo goto mon_deliver_fail; 4584d5c65159SKalle Valo 4585d5c65159SKalle Valo header = mon_skb; 4586d5c65159SKalle Valo 4587d5c65159SKalle Valo rxs->flag = 0; 4588d5c65159SKalle Valo do { 4589d5c65159SKalle Valo skb_next = mon_skb->next; 4590d5c65159SKalle Valo if (!skb_next) 4591d5c65159SKalle Valo rxs->flag &= ~RX_FLAG_AMSDU_MORE; 4592d5c65159SKalle Valo else 4593d5c65159SKalle Valo rxs->flag |= RX_FLAG_AMSDU_MORE; 4594d5c65159SKalle Valo 4595d5c65159SKalle Valo if (mon_skb == header) { 4596d5c65159SKalle Valo header = NULL; 4597d5c65159SKalle Valo rxs->flag &= ~RX_FLAG_ALLOW_SAME_PN; 4598d5c65159SKalle Valo } else { 4599d5c65159SKalle Valo rxs->flag |= RX_FLAG_ALLOW_SAME_PN; 4600d5c65159SKalle Valo } 4601d5c65159SKalle Valo rxs->flag |= RX_FLAG_ONLY_MONITOR; 4602d5c65159SKalle Valo 4603d5c65159SKalle Valo status = IEEE80211_SKB_RXCB(mon_skb); 4604d5c65159SKalle Valo *status = *rxs; 4605d5c65159SKalle Valo 4606d5c65159SKalle Valo ath11k_dp_rx_deliver_msdu(ar, napi, mon_skb); 4607d5c65159SKalle Valo mon_skb = skb_next; 46085e02bc73SMiles Hu } while (mon_skb); 4609d5c65159SKalle Valo rxs->flag = 0; 4610d5c65159SKalle Valo 4611d5c65159SKalle Valo return 0; 4612d5c65159SKalle Valo 4613d5c65159SKalle Valo mon_deliver_fail: 4614d5c65159SKalle Valo mon_skb = head_msdu; 4615d5c65159SKalle Valo while (mon_skb) { 4616d5c65159SKalle Valo skb_next = mon_skb->next; 4617d5c65159SKalle Valo dev_kfree_skb_any(mon_skb); 4618d5c65159SKalle Valo mon_skb = skb_next; 4619d5c65159SKalle Valo } 4620d5c65159SKalle Valo return -EINVAL; 4621d5c65159SKalle Valo } 4622d5c65159SKalle Valo 4623d5c65159SKalle Valo static void ath11k_dp_rx_mon_dest_process(struct ath11k *ar, u32 quota, 4624d5c65159SKalle Valo struct napi_struct *napi) 4625d5c65159SKalle Valo { 4626d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4627d5c65159SKalle Valo struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; 4628d5c65159SKalle Valo void *ring_entry; 4629d5c65159SKalle Valo void *mon_dst_srng; 4630d5c65159SKalle Valo u32 ppdu_id; 4631d5c65159SKalle Valo u32 rx_bufs_used; 4632d5c65159SKalle Valo struct ath11k_pdev_mon_stats *rx_mon_stats; 4633d5c65159SKalle Valo u32 npackets = 0; 4634d5c65159SKalle Valo 4635d5c65159SKalle Valo mon_dst_srng = &ar->ab->hal.srng_list[dp->rxdma_mon_dst_ring.ring_id]; 4636d5c65159SKalle Valo 4637d5c65159SKalle Valo if (!mon_dst_srng) { 4638d5c65159SKalle Valo ath11k_warn(ar->ab, 4639d5c65159SKalle Valo "HAL Monitor Destination Ring Init Failed -- %pK", 4640d5c65159SKalle Valo mon_dst_srng); 4641d5c65159SKalle Valo return; 4642d5c65159SKalle Valo } 4643d5c65159SKalle Valo 4644d5c65159SKalle Valo spin_lock_bh(&pmon->mon_lock); 4645d5c65159SKalle Valo 4646d5c65159SKalle Valo ath11k_hal_srng_access_begin(ar->ab, mon_dst_srng); 4647d5c65159SKalle Valo 4648d5c65159SKalle Valo ppdu_id = pmon->mon_ppdu_info.ppdu_id; 4649d5c65159SKalle Valo rx_bufs_used = 0; 4650d5c65159SKalle Valo rx_mon_stats = &pmon->rx_mon_stats; 4651d5c65159SKalle Valo 4652d5c65159SKalle Valo while ((ring_entry = ath11k_hal_srng_dst_peek(ar->ab, mon_dst_srng))) { 4653d5c65159SKalle Valo struct sk_buff *head_msdu, *tail_msdu; 4654d5c65159SKalle Valo 4655d5c65159SKalle Valo head_msdu = NULL; 4656d5c65159SKalle Valo tail_msdu = NULL; 4657d5c65159SKalle Valo 4658d5c65159SKalle Valo rx_bufs_used += ath11k_dp_rx_mon_mpdu_pop(ar, ring_entry, 4659d5c65159SKalle Valo &head_msdu, 4660d5c65159SKalle Valo &tail_msdu, 4661d5c65159SKalle Valo &npackets, &ppdu_id); 4662d5c65159SKalle Valo 4663d5c65159SKalle Valo if (ppdu_id != pmon->mon_ppdu_info.ppdu_id) { 4664d5c65159SKalle Valo pmon->mon_ppdu_status = DP_PPDU_STATUS_START; 4665d5c65159SKalle Valo ath11k_dbg(ar->ab, ATH11K_DBG_DATA, 4666d5c65159SKalle Valo "dest_rx: new ppdu_id %x != status ppdu_id %x", 4667d5c65159SKalle Valo ppdu_id, pmon->mon_ppdu_info.ppdu_id); 4668d5c65159SKalle Valo break; 4669d5c65159SKalle Valo } 4670d5c65159SKalle Valo if (head_msdu && tail_msdu) { 4671d5c65159SKalle Valo ath11k_dp_rx_mon_deliver(ar, dp->mac_id, head_msdu, 4672d5c65159SKalle Valo tail_msdu, napi); 4673d5c65159SKalle Valo rx_mon_stats->dest_mpdu_done++; 4674d5c65159SKalle Valo } 4675d5c65159SKalle Valo 4676d5c65159SKalle Valo ring_entry = ath11k_hal_srng_dst_get_next_entry(ar->ab, 4677d5c65159SKalle Valo mon_dst_srng); 4678d5c65159SKalle Valo } 4679d5c65159SKalle Valo ath11k_hal_srng_access_end(ar->ab, mon_dst_srng); 4680d5c65159SKalle Valo 4681d5c65159SKalle Valo spin_unlock_bh(&pmon->mon_lock); 4682d5c65159SKalle Valo 4683d5c65159SKalle Valo if (rx_bufs_used) { 4684d5c65159SKalle Valo rx_mon_stats->dest_ppdu_done++; 4685d5c65159SKalle Valo ath11k_dp_rxbufs_replenish(ar->ab, dp->mac_id, 4686d5c65159SKalle Valo &dp->rxdma_mon_buf_ring, 4687d5c65159SKalle Valo rx_bufs_used, 4688d5c65159SKalle Valo HAL_RX_BUF_RBM_SW3_BM, GFP_ATOMIC); 4689d5c65159SKalle Valo } 4690d5c65159SKalle Valo } 4691d5c65159SKalle Valo 4692d5c65159SKalle Valo static void ath11k_dp_rx_mon_status_process_tlv(struct ath11k *ar, 4693d5c65159SKalle Valo u32 quota, 4694d5c65159SKalle Valo struct napi_struct *napi) 4695d5c65159SKalle Valo { 4696d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4697d5c65159SKalle Valo struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; 4698d5c65159SKalle Valo struct hal_rx_mon_ppdu_info *ppdu_info; 4699d5c65159SKalle Valo struct sk_buff *status_skb; 4700d5c65159SKalle Valo u32 tlv_status = HAL_TLV_STATUS_BUF_DONE; 4701d5c65159SKalle Valo struct ath11k_pdev_mon_stats *rx_mon_stats; 4702d5c65159SKalle Valo 4703d5c65159SKalle Valo ppdu_info = &pmon->mon_ppdu_info; 4704d5c65159SKalle Valo rx_mon_stats = &pmon->rx_mon_stats; 4705d5c65159SKalle Valo 4706d5c65159SKalle Valo if (pmon->mon_ppdu_status != DP_PPDU_STATUS_START) 4707d5c65159SKalle Valo return; 4708d5c65159SKalle Valo 4709d5c65159SKalle Valo while (!skb_queue_empty(&pmon->rx_status_q)) { 4710d5c65159SKalle Valo status_skb = skb_dequeue(&pmon->rx_status_q); 4711d5c65159SKalle Valo 4712d5c65159SKalle Valo tlv_status = ath11k_hal_rx_parse_mon_status(ar->ab, ppdu_info, 4713d5c65159SKalle Valo status_skb); 4714d5c65159SKalle Valo if (tlv_status == HAL_TLV_STATUS_PPDU_DONE) { 4715d5c65159SKalle Valo rx_mon_stats->status_ppdu_done++; 4716d5c65159SKalle Valo pmon->mon_ppdu_status = DP_PPDU_STATUS_DONE; 4717d5c65159SKalle Valo ath11k_dp_rx_mon_dest_process(ar, quota, napi); 4718d5c65159SKalle Valo pmon->mon_ppdu_status = DP_PPDU_STATUS_START; 4719d5c65159SKalle Valo } 4720d5c65159SKalle Valo dev_kfree_skb_any(status_skb); 4721d5c65159SKalle Valo } 4722d5c65159SKalle Valo } 4723d5c65159SKalle Valo 4724d5c65159SKalle Valo static int ath11k_dp_mon_process_rx(struct ath11k_base *ab, int mac_id, 4725d5c65159SKalle Valo struct napi_struct *napi, int budget) 4726d5c65159SKalle Valo { 4727d5c65159SKalle Valo struct ath11k *ar = ab->pdevs[mac_id].ar; 4728d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4729d5c65159SKalle Valo struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; 4730d5c65159SKalle Valo int num_buffs_reaped = 0; 4731d5c65159SKalle Valo 4732d5c65159SKalle Valo num_buffs_reaped = ath11k_dp_rx_reap_mon_status_ring(ar->ab, dp->mac_id, &budget, 4733d5c65159SKalle Valo &pmon->rx_status_q); 4734d5c65159SKalle Valo if (num_buffs_reaped) 4735d5c65159SKalle Valo ath11k_dp_rx_mon_status_process_tlv(ar, budget, napi); 4736d5c65159SKalle Valo 4737d5c65159SKalle Valo return num_buffs_reaped; 4738d5c65159SKalle Valo } 4739d5c65159SKalle Valo 4740d5c65159SKalle Valo int ath11k_dp_rx_process_mon_rings(struct ath11k_base *ab, int mac_id, 4741d5c65159SKalle Valo struct napi_struct *napi, int budget) 4742d5c65159SKalle Valo { 4743d5c65159SKalle Valo struct ath11k *ar = ab->pdevs[mac_id].ar; 4744d5c65159SKalle Valo int ret = 0; 4745d5c65159SKalle Valo 4746d5c65159SKalle Valo if (test_bit(ATH11K_FLAG_MONITOR_ENABLED, &ar->monitor_flags)) 4747d5c65159SKalle Valo ret = ath11k_dp_mon_process_rx(ab, mac_id, napi, budget); 4748d5c65159SKalle Valo else 4749d5c65159SKalle Valo ret = ath11k_dp_rx_process_mon_status(ab, mac_id, napi, budget); 4750d5c65159SKalle Valo return ret; 4751d5c65159SKalle Valo } 4752d5c65159SKalle Valo 4753d5c65159SKalle Valo static int ath11k_dp_rx_pdev_mon_status_attach(struct ath11k *ar) 4754d5c65159SKalle Valo { 4755d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4756d5c65159SKalle Valo struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; 4757d5c65159SKalle Valo 4758d5c65159SKalle Valo skb_queue_head_init(&pmon->rx_status_q); 4759d5c65159SKalle Valo 4760d5c65159SKalle Valo pmon->mon_ppdu_status = DP_PPDU_STATUS_START; 4761d5c65159SKalle Valo 4762d5c65159SKalle Valo memset(&pmon->rx_mon_stats, 0, 4763d5c65159SKalle Valo sizeof(pmon->rx_mon_stats)); 4764d5c65159SKalle Valo return 0; 4765d5c65159SKalle Valo } 4766d5c65159SKalle Valo 4767d5c65159SKalle Valo int ath11k_dp_rx_pdev_mon_attach(struct ath11k *ar) 4768d5c65159SKalle Valo { 4769d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4770d5c65159SKalle Valo struct ath11k_mon_data *pmon = &dp->mon_data; 4771d5c65159SKalle Valo struct hal_srng *mon_desc_srng = NULL; 4772d5c65159SKalle Valo struct dp_srng *dp_srng; 4773d5c65159SKalle Valo int ret = 0; 4774d5c65159SKalle Valo u32 n_link_desc = 0; 4775d5c65159SKalle Valo 4776d5c65159SKalle Valo ret = ath11k_dp_rx_pdev_mon_status_attach(ar); 4777d5c65159SKalle Valo if (ret) { 4778d5c65159SKalle Valo ath11k_warn(ar->ab, "pdev_mon_status_attach() failed"); 4779d5c65159SKalle Valo return ret; 4780d5c65159SKalle Valo } 4781d5c65159SKalle Valo 4782d5c65159SKalle Valo dp_srng = &dp->rxdma_mon_desc_ring; 4783d5c65159SKalle Valo n_link_desc = dp_srng->size / 4784d5c65159SKalle Valo ath11k_hal_srng_get_entrysize(HAL_RXDMA_MONITOR_DESC); 4785d5c65159SKalle Valo mon_desc_srng = 4786d5c65159SKalle Valo &ar->ab->hal.srng_list[dp->rxdma_mon_desc_ring.ring_id]; 4787d5c65159SKalle Valo 4788d5c65159SKalle Valo ret = ath11k_dp_link_desc_setup(ar->ab, pmon->link_desc_banks, 4789d5c65159SKalle Valo HAL_RXDMA_MONITOR_DESC, mon_desc_srng, 4790d5c65159SKalle Valo n_link_desc); 4791d5c65159SKalle Valo if (ret) { 4792d5c65159SKalle Valo ath11k_warn(ar->ab, "mon_link_desc_pool_setup() failed"); 4793d5c65159SKalle Valo return ret; 4794d5c65159SKalle Valo } 4795d5c65159SKalle Valo pmon->mon_last_linkdesc_paddr = 0; 4796d5c65159SKalle Valo pmon->mon_last_buf_cookie = DP_RX_DESC_COOKIE_MAX + 1; 4797d5c65159SKalle Valo spin_lock_init(&pmon->mon_lock); 4798d5c65159SKalle Valo return 0; 4799d5c65159SKalle Valo } 4800d5c65159SKalle Valo 4801d5c65159SKalle Valo static int ath11k_dp_mon_link_free(struct ath11k *ar) 4802d5c65159SKalle Valo { 4803d5c65159SKalle Valo struct ath11k_pdev_dp *dp = &ar->dp; 4804d5c65159SKalle Valo struct ath11k_mon_data *pmon = &dp->mon_data; 4805d5c65159SKalle Valo 4806d5c65159SKalle Valo ath11k_dp_link_desc_cleanup(ar->ab, pmon->link_desc_banks, 4807d5c65159SKalle Valo HAL_RXDMA_MONITOR_DESC, 4808d5c65159SKalle Valo &dp->rxdma_mon_desc_ring); 4809d5c65159SKalle Valo return 0; 4810d5c65159SKalle Valo } 4811d5c65159SKalle Valo 4812d5c65159SKalle Valo int ath11k_dp_rx_pdev_mon_detach(struct ath11k *ar) 4813d5c65159SKalle Valo { 4814d5c65159SKalle Valo ath11k_dp_mon_link_free(ar); 4815d5c65159SKalle Valo return 0; 4816d5c65159SKalle Valo } 4817