| // SPDX-License-Identifier: BSD-3-Clause-Clear |
| /* |
| * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. |
| */ |
| |
| #include <linux/ieee80211.h> |
| #include <linux/kernel.h> |
| #include <linux/skbuff.h> |
| #include <crypto/hash.h> |
| #include "core.h" |
| #include "debug.h" |
| #include "debugfs_htt_stats.h" |
| #include "debugfs_sta.h" |
| #include "hal_desc.h" |
| #include "hw.h" |
| #include "dp_rx.h" |
| #include "hal_rx.h" |
| #include "dp_tx.h" |
| #include "peer.h" |
| |
| #define ATH11K_DP_RX_FRAGMENT_TIMEOUT_MS (2 * HZ) |
| |
| static inline |
| u8 *ath11k_dp_rx_h_80211_hdr(struct ath11k_base *ab, struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_hdr_status(desc); |
| } |
| |
| static inline |
| enum hal_encrypt_type ath11k_dp_rx_h_mpdu_start_enctype(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| if (!ab->hw_params.hw_ops->rx_desc_encrypt_valid(desc)) |
| return HAL_ENCRYPT_TYPE_OPEN; |
| |
| return ab->hw_params.hw_ops->rx_desc_get_encrypt_type(desc); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_msdu_start_decap_type(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_decap_type(desc); |
| } |
| |
| static inline |
| bool ath11k_dp_rx_h_msdu_start_ldpc_support(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_ldpc_support(desc); |
| } |
| |
| static inline |
| u8 ath11k_dp_rx_h_msdu_start_mesh_ctl_present(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_mesh_ctl(desc); |
| } |
| |
| static inline |
| bool ath11k_dp_rx_h_mpdu_start_seq_ctrl_valid(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_mpdu_seq_ctl_vld(desc); |
| } |
| |
| static inline bool ath11k_dp_rx_h_mpdu_start_fc_valid(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_mpdu_fc_valid(desc); |
| } |
| |
| static inline bool ath11k_dp_rx_h_mpdu_start_more_frags(struct ath11k_base *ab, |
| struct sk_buff *skb) |
| { |
| struct ieee80211_hdr *hdr; |
| |
| hdr = (struct ieee80211_hdr *)(skb->data + ab->hw_params.hal_desc_sz); |
| return ieee80211_has_morefrags(hdr->frame_control); |
| } |
| |
| static inline u16 ath11k_dp_rx_h_mpdu_start_frag_no(struct ath11k_base *ab, |
| struct sk_buff *skb) |
| { |
| struct ieee80211_hdr *hdr; |
| |
| hdr = (struct ieee80211_hdr *)(skb->data + ab->hw_params.hal_desc_sz); |
| return le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; |
| } |
| |
| static inline u16 ath11k_dp_rx_h_mpdu_start_seq_no(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_mpdu_start_seq_no(desc); |
| } |
| |
| static inline void *ath11k_dp_rx_get_attention(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_attention(desc); |
| } |
| |
| static inline bool ath11k_dp_rx_h_attn_msdu_done(struct rx_attention *attn) |
| { |
| return !!FIELD_GET(RX_ATTENTION_INFO2_MSDU_DONE, |
| __le32_to_cpu(attn->info2)); |
| } |
| |
| static inline bool ath11k_dp_rx_h_attn_l4_cksum_fail(struct rx_attention *attn) |
| { |
| return !!FIELD_GET(RX_ATTENTION_INFO1_TCP_UDP_CKSUM_FAIL, |
| __le32_to_cpu(attn->info1)); |
| } |
| |
| static inline bool ath11k_dp_rx_h_attn_ip_cksum_fail(struct rx_attention *attn) |
| { |
| return !!FIELD_GET(RX_ATTENTION_INFO1_IP_CKSUM_FAIL, |
| __le32_to_cpu(attn->info1)); |
| } |
| |
| static inline bool ath11k_dp_rx_h_attn_is_decrypted(struct rx_attention *attn) |
| { |
| return (FIELD_GET(RX_ATTENTION_INFO2_DCRYPT_STATUS_CODE, |
| __le32_to_cpu(attn->info2)) == |
| RX_DESC_DECRYPT_STATUS_CODE_OK); |
| } |
| |
| static u32 ath11k_dp_rx_h_attn_mpdu_err(struct rx_attention *attn) |
| { |
| u32 info = __le32_to_cpu(attn->info1); |
| u32 errmap = 0; |
| |
| if (info & RX_ATTENTION_INFO1_FCS_ERR) |
| errmap |= DP_RX_MPDU_ERR_FCS; |
| |
| if (info & RX_ATTENTION_INFO1_DECRYPT_ERR) |
| errmap |= DP_RX_MPDU_ERR_DECRYPT; |
| |
| if (info & RX_ATTENTION_INFO1_TKIP_MIC_ERR) |
| errmap |= DP_RX_MPDU_ERR_TKIP_MIC; |
| |
| if (info & RX_ATTENTION_INFO1_A_MSDU_ERROR) |
| errmap |= DP_RX_MPDU_ERR_AMSDU_ERR; |
| |
| if (info & RX_ATTENTION_INFO1_OVERFLOW_ERR) |
| errmap |= DP_RX_MPDU_ERR_OVERFLOW; |
| |
| if (info & RX_ATTENTION_INFO1_MSDU_LEN_ERR) |
| errmap |= DP_RX_MPDU_ERR_MSDU_LEN; |
| |
| if (info & RX_ATTENTION_INFO1_MPDU_LEN_ERR) |
| errmap |= DP_RX_MPDU_ERR_MPDU_LEN; |
| |
| return errmap; |
| } |
| |
| static bool ath11k_dp_rx_h_attn_msdu_len_err(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| struct rx_attention *rx_attention; |
| u32 errmap; |
| |
| rx_attention = ath11k_dp_rx_get_attention(ab, desc); |
| errmap = ath11k_dp_rx_h_attn_mpdu_err(rx_attention); |
| |
| return errmap & DP_RX_MPDU_ERR_MSDU_LEN; |
| } |
| |
| static inline u16 ath11k_dp_rx_h_msdu_start_msdu_len(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_msdu_len(desc); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_msdu_start_sgi(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_msdu_sgi(desc); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_msdu_start_rate_mcs(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_msdu_rate_mcs(desc); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_msdu_start_rx_bw(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_msdu_rx_bw(desc); |
| } |
| |
| static inline u32 ath11k_dp_rx_h_msdu_start_freq(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_msdu_freq(desc); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_msdu_start_pkt_type(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_msdu_pkt_type(desc); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_msdu_start_nss(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return hweight8(ab->hw_params.hw_ops->rx_desc_get_msdu_nss(desc)); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_mpdu_start_tid(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_mpdu_tid(desc); |
| } |
| |
| static inline u16 ath11k_dp_rx_h_mpdu_start_peer_id(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_mpdu_peer_id(desc); |
| } |
| |
| static inline u8 ath11k_dp_rx_h_msdu_end_l3pad(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_l3_pad_bytes(desc); |
| } |
| |
| static inline bool ath11k_dp_rx_h_msdu_end_first_msdu(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_first_msdu(desc); |
| } |
| |
| static bool ath11k_dp_rx_h_msdu_end_last_msdu(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_last_msdu(desc); |
| } |
| |
| static void ath11k_dp_rx_desc_end_tlv_copy(struct ath11k_base *ab, |
| struct hal_rx_desc *fdesc, |
| struct hal_rx_desc *ldesc) |
| { |
| ab->hw_params.hw_ops->rx_desc_copy_attn_end_tlv(fdesc, ldesc); |
| } |
| |
| static inline u32 ath11k_dp_rxdesc_get_mpdulen_err(struct rx_attention *attn) |
| { |
| return FIELD_GET(RX_ATTENTION_INFO1_MPDU_LEN_ERR, |
| __le32_to_cpu(attn->info1)); |
| } |
| |
| static inline u8 *ath11k_dp_rxdesc_get_80211hdr(struct ath11k_base *ab, |
| struct hal_rx_desc *rx_desc) |
| { |
| u8 *rx_pkt_hdr; |
| |
| rx_pkt_hdr = ab->hw_params.hw_ops->rx_desc_get_msdu_payload(rx_desc); |
| |
| return rx_pkt_hdr; |
| } |
| |
| static inline bool ath11k_dp_rxdesc_mpdu_valid(struct ath11k_base *ab, |
| struct hal_rx_desc *rx_desc) |
| { |
| u32 tlv_tag; |
| |
| tlv_tag = ab->hw_params.hw_ops->rx_desc_get_mpdu_start_tag(rx_desc); |
| |
| return tlv_tag == HAL_RX_MPDU_START; |
| } |
| |
| static inline u32 ath11k_dp_rxdesc_get_ppduid(struct ath11k_base *ab, |
| struct hal_rx_desc *rx_desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_get_mpdu_ppdu_id(rx_desc); |
| } |
| |
| static inline void ath11k_dp_rxdesc_set_msdu_len(struct ath11k_base *ab, |
| struct hal_rx_desc *desc, |
| u16 len) |
| { |
| ab->hw_params.hw_ops->rx_desc_set_msdu_len(desc, len); |
| } |
| |
| static bool ath11k_dp_rx_h_attn_is_mcbc(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| struct rx_attention *attn = ath11k_dp_rx_get_attention(ab, desc); |
| |
| return ath11k_dp_rx_h_msdu_end_first_msdu(ab, desc) && |
| (!!FIELD_GET(RX_ATTENTION_INFO1_MCAST_BCAST, |
| __le32_to_cpu(attn->info1))); |
| } |
| |
| static bool ath11k_dp_rxdesc_mac_addr2_valid(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_mac_addr2_valid(desc); |
| } |
| |
| static u8 *ath11k_dp_rxdesc_mpdu_start_addr2(struct ath11k_base *ab, |
| struct hal_rx_desc *desc) |
| { |
| return ab->hw_params.hw_ops->rx_desc_mpdu_start_addr2(desc); |
| } |
| |
| static void ath11k_dp_service_mon_ring(struct timer_list *t) |
| { |
| struct ath11k_base *ab = from_timer(ab, t, mon_reap_timer); |
| int i; |
| |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) |
| ath11k_dp_rx_process_mon_rings(ab, i, NULL, DP_MON_SERVICE_BUDGET); |
| |
| mod_timer(&ab->mon_reap_timer, jiffies + |
| msecs_to_jiffies(ATH11K_MON_TIMER_INTERVAL)); |
| } |
| |
| static int ath11k_dp_purge_mon_ring(struct ath11k_base *ab) |
| { |
| int i, reaped = 0; |
| unsigned long timeout = jiffies + msecs_to_jiffies(DP_MON_PURGE_TIMEOUT_MS); |
| |
| do { |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) |
| reaped += ath11k_dp_rx_process_mon_rings(ab, i, |
| NULL, |
| DP_MON_SERVICE_BUDGET); |
| |
| /* nothing more to reap */ |
| if (reaped < DP_MON_SERVICE_BUDGET) |
| return 0; |
| |
| } while (time_before(jiffies, timeout)); |
| |
| ath11k_warn(ab, "dp mon ring purge timeout"); |
| |
| return -ETIMEDOUT; |
| } |
| |
| /* Returns number of Rx buffers replenished */ |
| int ath11k_dp_rxbufs_replenish(struct ath11k_base *ab, int mac_id, |
| struct dp_rxdma_ring *rx_ring, |
| int req_entries, |
| enum hal_rx_buf_return_buf_manager mgr) |
| { |
| struct hal_srng *srng; |
| u32 *desc; |
| struct sk_buff *skb; |
| int num_free; |
| int num_remain; |
| int buf_id; |
| u32 cookie; |
| dma_addr_t paddr; |
| |
| req_entries = min(req_entries, rx_ring->bufs_max); |
| |
| srng = &ab->hal.srng_list[rx_ring->refill_buf_ring.ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| num_free = ath11k_hal_srng_src_num_free(ab, srng, true); |
| if (!req_entries && (num_free > (rx_ring->bufs_max * 3) / 4)) |
| req_entries = num_free; |
| |
| req_entries = min(num_free, req_entries); |
| num_remain = req_entries; |
| |
| while (num_remain > 0) { |
| skb = dev_alloc_skb(DP_RX_BUFFER_SIZE + |
| DP_RX_BUFFER_ALIGN_SIZE); |
| if (!skb) |
| break; |
| |
| if (!IS_ALIGNED((unsigned long)skb->data, |
| DP_RX_BUFFER_ALIGN_SIZE)) { |
| skb_pull(skb, |
| PTR_ALIGN(skb->data, DP_RX_BUFFER_ALIGN_SIZE) - |
| skb->data); |
| } |
| |
| paddr = dma_map_single(ab->dev, skb->data, |
| skb->len + skb_tailroom(skb), |
| DMA_FROM_DEVICE); |
| if (dma_mapping_error(ab->dev, paddr)) |
| goto fail_free_skb; |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| buf_id = idr_alloc(&rx_ring->bufs_idr, skb, 0, |
| rx_ring->bufs_max * 3, GFP_ATOMIC); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| if (buf_id < 0) |
| goto fail_dma_unmap; |
| |
| desc = ath11k_hal_srng_src_get_next_entry(ab, srng); |
| if (!desc) |
| goto fail_idr_remove; |
| |
| ATH11K_SKB_RXCB(skb)->paddr = paddr; |
| |
| cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, mac_id) | |
| FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); |
| |
| num_remain--; |
| |
| ath11k_hal_rx_buf_addr_info_set(desc, paddr, cookie, mgr); |
| } |
| |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| return req_entries - num_remain; |
| |
| fail_idr_remove: |
| spin_lock_bh(&rx_ring->idr_lock); |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| fail_dma_unmap: |
| dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb), |
| DMA_FROM_DEVICE); |
| fail_free_skb: |
| dev_kfree_skb_any(skb); |
| |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| return req_entries - num_remain; |
| } |
| |
| static int ath11k_dp_rxdma_buf_ring_free(struct ath11k *ar, |
| struct dp_rxdma_ring *rx_ring) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct sk_buff *skb; |
| int buf_id; |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| idr_for_each_entry(&rx_ring->bufs_idr, skb, buf_id) { |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| /* TODO: Understand where internal driver does this dma_unmap |
| * of rxdma_buffer. |
| */ |
| dma_unmap_single(ar->ab->dev, ATH11K_SKB_RXCB(skb)->paddr, |
| skb->len + skb_tailroom(skb), DMA_FROM_DEVICE); |
| dev_kfree_skb_any(skb); |
| } |
| |
| idr_destroy(&rx_ring->bufs_idr); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| /* if rxdma1_enable is false, mon_status_refill_ring |
| * isn't setup, so don't clean. |
| */ |
| if (!ar->ab->hw_params.rxdma1_enable) |
| return 0; |
| |
| rx_ring = &dp->rx_mon_status_refill_ring[0]; |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| idr_for_each_entry(&rx_ring->bufs_idr, skb, buf_id) { |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| /* XXX: Understand where internal driver does this dma_unmap |
| * of rxdma_buffer. |
| */ |
| dma_unmap_single(ar->ab->dev, ATH11K_SKB_RXCB(skb)->paddr, |
| skb->len + skb_tailroom(skb), DMA_BIDIRECTIONAL); |
| dev_kfree_skb_any(skb); |
| } |
| |
| idr_destroy(&rx_ring->bufs_idr); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| return 0; |
| } |
| |
| static int ath11k_dp_rxdma_pdev_buf_free(struct ath11k *ar) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_base *ab = ar->ab; |
| struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; |
| int i; |
| |
| ath11k_dp_rxdma_buf_ring_free(ar, rx_ring); |
| |
| rx_ring = &dp->rxdma_mon_buf_ring; |
| ath11k_dp_rxdma_buf_ring_free(ar, rx_ring); |
| |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| rx_ring = &dp->rx_mon_status_refill_ring[i]; |
| ath11k_dp_rxdma_buf_ring_free(ar, rx_ring); |
| } |
| |
| return 0; |
| } |
| |
| static int ath11k_dp_rxdma_ring_buf_setup(struct ath11k *ar, |
| struct dp_rxdma_ring *rx_ring, |
| u32 ringtype) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| int num_entries; |
| |
| num_entries = rx_ring->refill_buf_ring.size / |
| ath11k_hal_srng_get_entrysize(ar->ab, ringtype); |
| |
| rx_ring->bufs_max = num_entries; |
| ath11k_dp_rxbufs_replenish(ar->ab, dp->mac_id, rx_ring, num_entries, |
| ar->ab->hw_params.hal_params->rx_buf_rbm); |
| return 0; |
| } |
| |
| static int ath11k_dp_rxdma_pdev_buf_setup(struct ath11k *ar) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_base *ab = ar->ab; |
| struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; |
| int i; |
| |
| ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_BUF); |
| |
| if (ar->ab->hw_params.rxdma1_enable) { |
| rx_ring = &dp->rxdma_mon_buf_ring; |
| ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_MONITOR_BUF); |
| } |
| |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| rx_ring = &dp->rx_mon_status_refill_ring[i]; |
| ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_MONITOR_STATUS); |
| } |
| |
| return 0; |
| } |
| |
| static void ath11k_dp_rx_pdev_srng_free(struct ath11k *ar) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_base *ab = ar->ab; |
| int i; |
| |
| ath11k_dp_srng_cleanup(ab, &dp->rx_refill_buf_ring.refill_buf_ring); |
| |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| if (ab->hw_params.rx_mac_buf_ring) |
| ath11k_dp_srng_cleanup(ab, &dp->rx_mac_buf_ring[i]); |
| |
| ath11k_dp_srng_cleanup(ab, &dp->rxdma_err_dst_ring[i]); |
| ath11k_dp_srng_cleanup(ab, |
| &dp->rx_mon_status_refill_ring[i].refill_buf_ring); |
| } |
| |
| ath11k_dp_srng_cleanup(ab, &dp->rxdma_mon_buf_ring.refill_buf_ring); |
| } |
| |
| void ath11k_dp_pdev_reo_cleanup(struct ath11k_base *ab) |
| { |
| struct ath11k_dp *dp = &ab->dp; |
| int i; |
| |
| for (i = 0; i < DP_REO_DST_RING_MAX; i++) |
| ath11k_dp_srng_cleanup(ab, &dp->reo_dst_ring[i]); |
| } |
| |
| int ath11k_dp_pdev_reo_setup(struct ath11k_base *ab) |
| { |
| struct ath11k_dp *dp = &ab->dp; |
| int ret; |
| int i; |
| |
| for (i = 0; i < DP_REO_DST_RING_MAX; i++) { |
| ret = ath11k_dp_srng_setup(ab, &dp->reo_dst_ring[i], |
| HAL_REO_DST, i, 0, |
| DP_REO_DST_RING_SIZE); |
| if (ret) { |
| ath11k_warn(ab, "failed to setup reo_dst_ring\n"); |
| goto err_reo_cleanup; |
| } |
| } |
| |
| return 0; |
| |
| err_reo_cleanup: |
| ath11k_dp_pdev_reo_cleanup(ab); |
| |
| return ret; |
| } |
| |
| static int ath11k_dp_rx_pdev_srng_alloc(struct ath11k *ar) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_base *ab = ar->ab; |
| struct dp_srng *srng = NULL; |
| int i; |
| int ret; |
| |
| ret = ath11k_dp_srng_setup(ar->ab, |
| &dp->rx_refill_buf_ring.refill_buf_ring, |
| HAL_RXDMA_BUF, 0, |
| dp->mac_id, DP_RXDMA_BUF_RING_SIZE); |
| if (ret) { |
| ath11k_warn(ar->ab, "failed to setup rx_refill_buf_ring\n"); |
| return ret; |
| } |
| |
| if (ar->ab->hw_params.rx_mac_buf_ring) { |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| ret = ath11k_dp_srng_setup(ar->ab, |
| &dp->rx_mac_buf_ring[i], |
| HAL_RXDMA_BUF, 1, |
| dp->mac_id + i, 1024); |
| if (ret) { |
| ath11k_warn(ar->ab, "failed to setup rx_mac_buf_ring %d\n", |
| i); |
| return ret; |
| } |
| } |
| } |
| |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| ret = ath11k_dp_srng_setup(ar->ab, &dp->rxdma_err_dst_ring[i], |
| HAL_RXDMA_DST, 0, dp->mac_id + i, |
| DP_RXDMA_ERR_DST_RING_SIZE); |
| if (ret) { |
| ath11k_warn(ar->ab, "failed to setup rxdma_err_dst_ring %d\n", i); |
| return ret; |
| } |
| } |
| |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| srng = &dp->rx_mon_status_refill_ring[i].refill_buf_ring; |
| ret = ath11k_dp_srng_setup(ar->ab, |
| srng, |
| HAL_RXDMA_MONITOR_STATUS, 0, dp->mac_id + i, |
| DP_RXDMA_MON_STATUS_RING_SIZE); |
| if (ret) { |
| ath11k_warn(ar->ab, |
| "failed to setup rx_mon_status_refill_ring %d\n", i); |
| return ret; |
| } |
| } |
| |
| /* if rxdma1_enable is false, then it doesn't need |
| * to setup rxdam_mon_buf_ring, rxdma_mon_dst_ring |
| * and rxdma_mon_desc_ring. |
| * init reap timer for QCA6390. |
| */ |
| if (!ar->ab->hw_params.rxdma1_enable) { |
| //init mon status buffer reap timer |
| timer_setup(&ar->ab->mon_reap_timer, |
| ath11k_dp_service_mon_ring, 0); |
| return 0; |
| } |
| |
| ret = ath11k_dp_srng_setup(ar->ab, |
| &dp->rxdma_mon_buf_ring.refill_buf_ring, |
| HAL_RXDMA_MONITOR_BUF, 0, dp->mac_id, |
| DP_RXDMA_MONITOR_BUF_RING_SIZE); |
| if (ret) { |
| ath11k_warn(ar->ab, |
| "failed to setup HAL_RXDMA_MONITOR_BUF\n"); |
| return ret; |
| } |
| |
| ret = ath11k_dp_srng_setup(ar->ab, &dp->rxdma_mon_dst_ring, |
| HAL_RXDMA_MONITOR_DST, 0, dp->mac_id, |
| DP_RXDMA_MONITOR_DST_RING_SIZE); |
| if (ret) { |
| ath11k_warn(ar->ab, |
| "failed to setup HAL_RXDMA_MONITOR_DST\n"); |
| return ret; |
| } |
| |
| ret = ath11k_dp_srng_setup(ar->ab, &dp->rxdma_mon_desc_ring, |
| HAL_RXDMA_MONITOR_DESC, 0, dp->mac_id, |
| DP_RXDMA_MONITOR_DESC_RING_SIZE); |
| if (ret) { |
| ath11k_warn(ar->ab, |
| "failed to setup HAL_RXDMA_MONITOR_DESC\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| void ath11k_dp_reo_cmd_list_cleanup(struct ath11k_base *ab) |
| { |
| struct ath11k_dp *dp = &ab->dp; |
| struct dp_reo_cmd *cmd, *tmp; |
| struct dp_reo_cache_flush_elem *cmd_cache, *tmp_cache; |
| |
| spin_lock_bh(&dp->reo_cmd_lock); |
| list_for_each_entry_safe(cmd, tmp, &dp->reo_cmd_list, list) { |
| list_del(&cmd->list); |
| dma_unmap_single(ab->dev, cmd->data.paddr, |
| cmd->data.size, DMA_BIDIRECTIONAL); |
| kfree(cmd->data.vaddr); |
| kfree(cmd); |
| } |
| |
| list_for_each_entry_safe(cmd_cache, tmp_cache, |
| &dp->reo_cmd_cache_flush_list, list) { |
| list_del(&cmd_cache->list); |
| dp->reo_cmd_cache_flush_count--; |
| dma_unmap_single(ab->dev, cmd_cache->data.paddr, |
| cmd_cache->data.size, DMA_BIDIRECTIONAL); |
| kfree(cmd_cache->data.vaddr); |
| kfree(cmd_cache); |
| } |
| spin_unlock_bh(&dp->reo_cmd_lock); |
| } |
| |
| static void ath11k_dp_reo_cmd_free(struct ath11k_dp *dp, void *ctx, |
| enum hal_reo_cmd_status status) |
| { |
| struct dp_rx_tid *rx_tid = ctx; |
| |
| if (status != HAL_REO_CMD_SUCCESS) |
| ath11k_warn(dp->ab, "failed to flush rx tid hw desc, tid %d status %d\n", |
| rx_tid->tid, status); |
| |
| dma_unmap_single(dp->ab->dev, rx_tid->paddr, rx_tid->size, |
| DMA_BIDIRECTIONAL); |
| kfree(rx_tid->vaddr); |
| } |
| |
| static void ath11k_dp_reo_cache_flush(struct ath11k_base *ab, |
| struct dp_rx_tid *rx_tid) |
| { |
| struct ath11k_hal_reo_cmd cmd = {0}; |
| unsigned long tot_desc_sz, desc_sz; |
| int ret; |
| |
| tot_desc_sz = rx_tid->size; |
| desc_sz = ath11k_hal_reo_qdesc_size(0, HAL_DESC_REO_NON_QOS_TID); |
| |
| while (tot_desc_sz > desc_sz) { |
| tot_desc_sz -= desc_sz; |
| cmd.addr_lo = lower_32_bits(rx_tid->paddr + tot_desc_sz); |
| cmd.addr_hi = upper_32_bits(rx_tid->paddr); |
| ret = ath11k_dp_tx_send_reo_cmd(ab, rx_tid, |
| HAL_REO_CMD_FLUSH_CACHE, &cmd, |
| NULL); |
| if (ret) |
| ath11k_warn(ab, |
| "failed to send HAL_REO_CMD_FLUSH_CACHE, tid %d (%d)\n", |
| rx_tid->tid, ret); |
| } |
| |
| memset(&cmd, 0, sizeof(cmd)); |
| cmd.addr_lo = lower_32_bits(rx_tid->paddr); |
| cmd.addr_hi = upper_32_bits(rx_tid->paddr); |
| cmd.flag |= HAL_REO_CMD_FLG_NEED_STATUS; |
| ret = ath11k_dp_tx_send_reo_cmd(ab, rx_tid, |
| HAL_REO_CMD_FLUSH_CACHE, |
| &cmd, ath11k_dp_reo_cmd_free); |
| if (ret) { |
| ath11k_err(ab, "failed to send HAL_REO_CMD_FLUSH_CACHE cmd, tid %d (%d)\n", |
| rx_tid->tid, ret); |
| dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size, |
| DMA_BIDIRECTIONAL); |
| kfree(rx_tid->vaddr); |
| } |
| } |
| |
| static void ath11k_dp_rx_tid_del_func(struct ath11k_dp *dp, void *ctx, |
| enum hal_reo_cmd_status status) |
| { |
| struct ath11k_base *ab = dp->ab; |
| struct dp_rx_tid *rx_tid = ctx; |
| struct dp_reo_cache_flush_elem *elem, *tmp; |
| |
| if (status == HAL_REO_CMD_DRAIN) { |
| goto free_desc; |
| } else if (status != HAL_REO_CMD_SUCCESS) { |
| /* Shouldn't happen! Cleanup in case of other failure? */ |
| ath11k_warn(ab, "failed to delete rx tid %d hw descriptor %d\n", |
| rx_tid->tid, status); |
| return; |
| } |
| |
| elem = kzalloc(sizeof(*elem), GFP_ATOMIC); |
| if (!elem) |
| goto free_desc; |
| |
| elem->ts = jiffies; |
| memcpy(&elem->data, rx_tid, sizeof(*rx_tid)); |
| |
| spin_lock_bh(&dp->reo_cmd_lock); |
| list_add_tail(&elem->list, &dp->reo_cmd_cache_flush_list); |
| dp->reo_cmd_cache_flush_count++; |
| |
| /* Flush and invalidate aged REO desc from HW cache */ |
| list_for_each_entry_safe(elem, tmp, &dp->reo_cmd_cache_flush_list, |
| list) { |
| if (dp->reo_cmd_cache_flush_count > DP_REO_DESC_FREE_THRESHOLD || |
| time_after(jiffies, elem->ts + |
| msecs_to_jiffies(DP_REO_DESC_FREE_TIMEOUT_MS))) { |
| list_del(&elem->list); |
| dp->reo_cmd_cache_flush_count--; |
| spin_unlock_bh(&dp->reo_cmd_lock); |
| |
| ath11k_dp_reo_cache_flush(ab, &elem->data); |
| kfree(elem); |
| spin_lock_bh(&dp->reo_cmd_lock); |
| } |
| } |
| spin_unlock_bh(&dp->reo_cmd_lock); |
| |
| return; |
| free_desc: |
| dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size, |
| DMA_BIDIRECTIONAL); |
| kfree(rx_tid->vaddr); |
| } |
| |
| void ath11k_peer_rx_tid_delete(struct ath11k *ar, |
| struct ath11k_peer *peer, u8 tid) |
| { |
| struct ath11k_hal_reo_cmd cmd = {0}; |
| struct dp_rx_tid *rx_tid = &peer->rx_tid[tid]; |
| int ret; |
| |
| if (!rx_tid->active) |
| return; |
| |
| cmd.flag = HAL_REO_CMD_FLG_NEED_STATUS; |
| cmd.addr_lo = lower_32_bits(rx_tid->paddr); |
| cmd.addr_hi = upper_32_bits(rx_tid->paddr); |
| cmd.upd0 |= HAL_REO_CMD_UPD0_VLD; |
| ret = ath11k_dp_tx_send_reo_cmd(ar->ab, rx_tid, |
| HAL_REO_CMD_UPDATE_RX_QUEUE, &cmd, |
| ath11k_dp_rx_tid_del_func); |
| if (ret) { |
| if (ret != -ESHUTDOWN) |
| ath11k_err(ar->ab, "failed to send HAL_REO_CMD_UPDATE_RX_QUEUE cmd, tid %d (%d)\n", |
| tid, ret); |
| dma_unmap_single(ar->ab->dev, rx_tid->paddr, rx_tid->size, |
| DMA_BIDIRECTIONAL); |
| kfree(rx_tid->vaddr); |
| } |
| |
| rx_tid->active = false; |
| } |
| |
| static int ath11k_dp_rx_link_desc_return(struct ath11k_base *ab, |
| u32 *link_desc, |
| enum hal_wbm_rel_bm_act action) |
| { |
| struct ath11k_dp *dp = &ab->dp; |
| struct hal_srng *srng; |
| u32 *desc; |
| int ret = 0; |
| |
| srng = &ab->hal.srng_list[dp->wbm_desc_rel_ring.ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| desc = ath11k_hal_srng_src_get_next_entry(ab, srng); |
| if (!desc) { |
| ret = -ENOBUFS; |
| goto exit; |
| } |
| |
| ath11k_hal_rx_msdu_link_desc_set(ab, (void *)desc, (void *)link_desc, |
| action); |
| |
| exit: |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| return ret; |
| } |
| |
| static void ath11k_dp_rx_frags_cleanup(struct dp_rx_tid *rx_tid, bool rel_link_desc) |
| { |
| struct ath11k_base *ab = rx_tid->ab; |
| |
| lockdep_assert_held(&ab->base_lock); |
| |
| if (rx_tid->dst_ring_desc) { |
| if (rel_link_desc) |
| ath11k_dp_rx_link_desc_return(ab, (u32 *)rx_tid->dst_ring_desc, |
| HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); |
| kfree(rx_tid->dst_ring_desc); |
| rx_tid->dst_ring_desc = NULL; |
| } |
| |
| rx_tid->cur_sn = 0; |
| rx_tid->last_frag_no = 0; |
| rx_tid->rx_frag_bitmap = 0; |
| __skb_queue_purge(&rx_tid->rx_frags); |
| } |
| |
| void ath11k_peer_frags_flush(struct ath11k *ar, struct ath11k_peer *peer) |
| { |
| struct dp_rx_tid *rx_tid; |
| int i; |
| |
| lockdep_assert_held(&ar->ab->base_lock); |
| |
| for (i = 0; i <= IEEE80211_NUM_TIDS; i++) { |
| rx_tid = &peer->rx_tid[i]; |
| |
| spin_unlock_bh(&ar->ab->base_lock); |
| del_timer_sync(&rx_tid->frag_timer); |
| spin_lock_bh(&ar->ab->base_lock); |
| |
| ath11k_dp_rx_frags_cleanup(rx_tid, true); |
| } |
| } |
| |
| void ath11k_peer_rx_tid_cleanup(struct ath11k *ar, struct ath11k_peer *peer) |
| { |
| struct dp_rx_tid *rx_tid; |
| int i; |
| |
| lockdep_assert_held(&ar->ab->base_lock); |
| |
| for (i = 0; i <= IEEE80211_NUM_TIDS; i++) { |
| rx_tid = &peer->rx_tid[i]; |
| |
| ath11k_peer_rx_tid_delete(ar, peer, i); |
| ath11k_dp_rx_frags_cleanup(rx_tid, true); |
| |
| spin_unlock_bh(&ar->ab->base_lock); |
| del_timer_sync(&rx_tid->frag_timer); |
| spin_lock_bh(&ar->ab->base_lock); |
| } |
| } |
| |
| static int ath11k_peer_rx_tid_reo_update(struct ath11k *ar, |
| struct ath11k_peer *peer, |
| struct dp_rx_tid *rx_tid, |
| u32 ba_win_sz, u16 ssn, |
| bool update_ssn) |
| { |
| struct ath11k_hal_reo_cmd cmd = {0}; |
| int ret; |
| |
| cmd.addr_lo = lower_32_bits(rx_tid->paddr); |
| cmd.addr_hi = upper_32_bits(rx_tid->paddr); |
| cmd.flag = HAL_REO_CMD_FLG_NEED_STATUS; |
| cmd.upd0 = HAL_REO_CMD_UPD0_BA_WINDOW_SIZE; |
| cmd.ba_window_size = ba_win_sz; |
| |
| if (update_ssn) { |
| cmd.upd0 |= HAL_REO_CMD_UPD0_SSN; |
| cmd.upd2 = FIELD_PREP(HAL_REO_CMD_UPD2_SSN, ssn); |
| } |
| |
| ret = ath11k_dp_tx_send_reo_cmd(ar->ab, rx_tid, |
| HAL_REO_CMD_UPDATE_RX_QUEUE, &cmd, |
| NULL); |
| if (ret) { |
| ath11k_warn(ar->ab, "failed to update rx tid queue, tid %d (%d)\n", |
| rx_tid->tid, ret); |
| return ret; |
| } |
| |
| rx_tid->ba_win_sz = ba_win_sz; |
| |
| return 0; |
| } |
| |
| static void ath11k_dp_rx_tid_mem_free(struct ath11k_base *ab, |
| const u8 *peer_mac, int vdev_id, u8 tid) |
| { |
| struct ath11k_peer *peer; |
| struct dp_rx_tid *rx_tid; |
| |
| spin_lock_bh(&ab->base_lock); |
| |
| peer = ath11k_peer_find(ab, vdev_id, peer_mac); |
| if (!peer) { |
| ath11k_warn(ab, "failed to find the peer to free up rx tid mem\n"); |
| goto unlock_exit; |
| } |
| |
| rx_tid = &peer->rx_tid[tid]; |
| if (!rx_tid->active) |
| goto unlock_exit; |
| |
| dma_unmap_single(ab->dev, rx_tid->paddr, rx_tid->size, |
| DMA_BIDIRECTIONAL); |
| kfree(rx_tid->vaddr); |
| |
| rx_tid->active = false; |
| |
| unlock_exit: |
| spin_unlock_bh(&ab->base_lock); |
| } |
| |
| int ath11k_peer_rx_tid_setup(struct ath11k *ar, const u8 *peer_mac, int vdev_id, |
| u8 tid, u32 ba_win_sz, u16 ssn, |
| enum hal_pn_type pn_type) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct ath11k_peer *peer; |
| struct dp_rx_tid *rx_tid; |
| u32 hw_desc_sz; |
| u32 *addr_aligned; |
| void *vaddr; |
| dma_addr_t paddr; |
| int ret; |
| |
| spin_lock_bh(&ab->base_lock); |
| |
| peer = ath11k_peer_find(ab, vdev_id, peer_mac); |
| if (!peer) { |
| ath11k_warn(ab, "failed to find the peer to set up rx tid\n"); |
| spin_unlock_bh(&ab->base_lock); |
| return -ENOENT; |
| } |
| |
| rx_tid = &peer->rx_tid[tid]; |
| /* Update the tid queue if it is already setup */ |
| if (rx_tid->active) { |
| paddr = rx_tid->paddr; |
| ret = ath11k_peer_rx_tid_reo_update(ar, peer, rx_tid, |
| ba_win_sz, ssn, true); |
| spin_unlock_bh(&ab->base_lock); |
| if (ret) { |
| ath11k_warn(ab, "failed to update reo for rx tid %d\n", tid); |
| return ret; |
| } |
| |
| ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, |
| peer_mac, paddr, |
| tid, 1, ba_win_sz); |
| if (ret) |
| ath11k_warn(ab, "failed to send wmi command to update rx reorder queue, tid :%d (%d)\n", |
| tid, ret); |
| return ret; |
| } |
| |
| rx_tid->tid = tid; |
| |
| rx_tid->ba_win_sz = ba_win_sz; |
| |
| /* TODO: Optimize the memory allocation for qos tid based on |
| * the actual BA window size in REO tid update path. |
| */ |
| if (tid == HAL_DESC_REO_NON_QOS_TID) |
| hw_desc_sz = ath11k_hal_reo_qdesc_size(ba_win_sz, tid); |
| else |
| hw_desc_sz = ath11k_hal_reo_qdesc_size(DP_BA_WIN_SZ_MAX, tid); |
| |
| vaddr = kzalloc(hw_desc_sz + HAL_LINK_DESC_ALIGN - 1, GFP_ATOMIC); |
| if (!vaddr) { |
| spin_unlock_bh(&ab->base_lock); |
| return -ENOMEM; |
| } |
| |
| addr_aligned = PTR_ALIGN(vaddr, HAL_LINK_DESC_ALIGN); |
| |
| ath11k_hal_reo_qdesc_setup(addr_aligned, tid, ba_win_sz, |
| ssn, pn_type); |
| |
| paddr = dma_map_single(ab->dev, addr_aligned, hw_desc_sz, |
| DMA_BIDIRECTIONAL); |
| |
| ret = dma_mapping_error(ab->dev, paddr); |
| if (ret) { |
| spin_unlock_bh(&ab->base_lock); |
| goto err_mem_free; |
| } |
| |
| rx_tid->vaddr = vaddr; |
| rx_tid->paddr = paddr; |
| rx_tid->size = hw_desc_sz; |
| rx_tid->active = true; |
| |
| spin_unlock_bh(&ab->base_lock); |
| |
| ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, peer_mac, |
| paddr, tid, 1, ba_win_sz); |
| if (ret) { |
| ath11k_warn(ar->ab, "failed to setup rx reorder queue, tid :%d (%d)\n", |
| tid, ret); |
| ath11k_dp_rx_tid_mem_free(ab, peer_mac, vdev_id, tid); |
| } |
| |
| return ret; |
| |
| err_mem_free: |
| kfree(vaddr); |
| |
| return ret; |
| } |
| |
| int ath11k_dp_rx_ampdu_start(struct ath11k *ar, |
| struct ieee80211_ampdu_params *params) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct ath11k_sta *arsta = (void *)params->sta->drv_priv; |
| int vdev_id = arsta->arvif->vdev_id; |
| int ret; |
| |
| ret = ath11k_peer_rx_tid_setup(ar, params->sta->addr, vdev_id, |
| params->tid, params->buf_size, |
| params->ssn, arsta->pn_type); |
| if (ret) |
| ath11k_warn(ab, "failed to setup rx tid %d\n", ret); |
| |
| return ret; |
| } |
| |
| int ath11k_dp_rx_ampdu_stop(struct ath11k *ar, |
| struct ieee80211_ampdu_params *params) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct ath11k_peer *peer; |
| struct ath11k_sta *arsta = (void *)params->sta->drv_priv; |
| int vdev_id = arsta->arvif->vdev_id; |
| dma_addr_t paddr; |
| bool active; |
| int ret; |
| |
| spin_lock_bh(&ab->base_lock); |
| |
| peer = ath11k_peer_find(ab, vdev_id, params->sta->addr); |
| if (!peer) { |
| ath11k_warn(ab, "failed to find the peer to stop rx aggregation\n"); |
| spin_unlock_bh(&ab->base_lock); |
| return -ENOENT; |
| } |
| |
| paddr = peer->rx_tid[params->tid].paddr; |
| active = peer->rx_tid[params->tid].active; |
| |
| if (!active) { |
| spin_unlock_bh(&ab->base_lock); |
| return 0; |
| } |
| |
| ret = ath11k_peer_rx_tid_reo_update(ar, peer, peer->rx_tid, 1, 0, false); |
| spin_unlock_bh(&ab->base_lock); |
| if (ret) { |
| ath11k_warn(ab, "failed to update reo for rx tid %d: %d\n", |
| params->tid, ret); |
| return ret; |
| } |
| |
| ret = ath11k_wmi_peer_rx_reorder_queue_setup(ar, vdev_id, |
| params->sta->addr, paddr, |
| params->tid, 1, 1); |
| if (ret) |
| ath11k_warn(ab, "failed to send wmi to delete rx tid %d\n", |
| ret); |
| |
| return ret; |
| } |
| |
| int ath11k_dp_peer_rx_pn_replay_config(struct ath11k_vif *arvif, |
| const u8 *peer_addr, |
| enum set_key_cmd key_cmd, |
| struct ieee80211_key_conf *key) |
| { |
| struct ath11k *ar = arvif->ar; |
| struct ath11k_base *ab = ar->ab; |
| struct ath11k_hal_reo_cmd cmd = {0}; |
| struct ath11k_peer *peer; |
| struct dp_rx_tid *rx_tid; |
| u8 tid; |
| int ret = 0; |
| |
| /* NOTE: Enable PN/TSC replay check offload only for unicast frames. |
| * We use mac80211 PN/TSC replay check functionality for bcast/mcast |
| * for now. |
| */ |
| if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) |
| return 0; |
| |
| cmd.flag |= HAL_REO_CMD_FLG_NEED_STATUS; |
| cmd.upd0 |= HAL_REO_CMD_UPD0_PN | |
| HAL_REO_CMD_UPD0_PN_SIZE | |
| HAL_REO_CMD_UPD0_PN_VALID | |
| HAL_REO_CMD_UPD0_PN_CHECK | |
| HAL_REO_CMD_UPD0_SVLD; |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_CCMP: |
| case WLAN_CIPHER_SUITE_CCMP_256: |
| case WLAN_CIPHER_SUITE_GCMP: |
| case WLAN_CIPHER_SUITE_GCMP_256: |
| if (key_cmd == SET_KEY) { |
| cmd.upd1 |= HAL_REO_CMD_UPD1_PN_CHECK; |
| cmd.pn_size = 48; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| spin_lock_bh(&ab->base_lock); |
| |
| peer = ath11k_peer_find(ab, arvif->vdev_id, peer_addr); |
| if (!peer) { |
| ath11k_warn(ab, "failed to find the peer to configure pn replay detection\n"); |
| spin_unlock_bh(&ab->base_lock); |
| return -ENOENT; |
| } |
| |
| for (tid = 0; tid <= IEEE80211_NUM_TIDS; tid++) { |
| rx_tid = &peer->rx_tid[tid]; |
| if (!rx_tid->active) |
| continue; |
| cmd.addr_lo = lower_32_bits(rx_tid->paddr); |
| cmd.addr_hi = upper_32_bits(rx_tid->paddr); |
| ret = ath11k_dp_tx_send_reo_cmd(ab, rx_tid, |
| HAL_REO_CMD_UPDATE_RX_QUEUE, |
| &cmd, NULL); |
| if (ret) { |
| ath11k_warn(ab, "failed to configure rx tid %d queue for pn replay detection %d\n", |
| tid, ret); |
| break; |
| } |
| } |
| |
| spin_unlock_bh(&ab->base_lock); |
| |
| return ret; |
| } |
| |
| static inline int ath11k_get_ppdu_user_index(struct htt_ppdu_stats *ppdu_stats, |
| u16 peer_id) |
| { |
| int i; |
| |
| for (i = 0; i < HTT_PPDU_STATS_MAX_USERS - 1; i++) { |
| if (ppdu_stats->user_stats[i].is_valid_peer_id) { |
| if (peer_id == ppdu_stats->user_stats[i].peer_id) |
| return i; |
| } else { |
| return i; |
| } |
| } |
| |
| return -EINVAL; |
| } |
| |
| static int ath11k_htt_tlv_ppdu_stats_parse(struct ath11k_base *ab, |
| u16 tag, u16 len, const void *ptr, |
| void *data) |
| { |
| struct htt_ppdu_stats_info *ppdu_info; |
| struct htt_ppdu_user_stats *user_stats; |
| int cur_user; |
| u16 peer_id; |
| |
| ppdu_info = (struct htt_ppdu_stats_info *)data; |
| |
| switch (tag) { |
| case HTT_PPDU_STATS_TAG_COMMON: |
| if (len < sizeof(struct htt_ppdu_stats_common)) { |
| ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", |
| len, tag); |
| return -EINVAL; |
| } |
| memcpy((void *)&ppdu_info->ppdu_stats.common, ptr, |
| sizeof(struct htt_ppdu_stats_common)); |
| break; |
| case HTT_PPDU_STATS_TAG_USR_RATE: |
| if (len < sizeof(struct htt_ppdu_stats_user_rate)) { |
| ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", |
| len, tag); |
| return -EINVAL; |
| } |
| |
| peer_id = ((struct htt_ppdu_stats_user_rate *)ptr)->sw_peer_id; |
| cur_user = ath11k_get_ppdu_user_index(&ppdu_info->ppdu_stats, |
| peer_id); |
| if (cur_user < 0) |
| return -EINVAL; |
| user_stats = &ppdu_info->ppdu_stats.user_stats[cur_user]; |
| user_stats->peer_id = peer_id; |
| user_stats->is_valid_peer_id = true; |
| memcpy((void *)&user_stats->rate, ptr, |
| sizeof(struct htt_ppdu_stats_user_rate)); |
| user_stats->tlv_flags |= BIT(tag); |
| break; |
| case HTT_PPDU_STATS_TAG_USR_COMPLTN_COMMON: |
| if (len < sizeof(struct htt_ppdu_stats_usr_cmpltn_cmn)) { |
| ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", |
| len, tag); |
| return -EINVAL; |
| } |
| |
| peer_id = ((struct htt_ppdu_stats_usr_cmpltn_cmn *)ptr)->sw_peer_id; |
| cur_user = ath11k_get_ppdu_user_index(&ppdu_info->ppdu_stats, |
| peer_id); |
| if (cur_user < 0) |
| return -EINVAL; |
| user_stats = &ppdu_info->ppdu_stats.user_stats[cur_user]; |
| user_stats->peer_id = peer_id; |
| user_stats->is_valid_peer_id = true; |
| memcpy((void *)&user_stats->cmpltn_cmn, ptr, |
| sizeof(struct htt_ppdu_stats_usr_cmpltn_cmn)); |
| user_stats->tlv_flags |= BIT(tag); |
| break; |
| case HTT_PPDU_STATS_TAG_USR_COMPLTN_ACK_BA_STATUS: |
| if (len < |
| sizeof(struct htt_ppdu_stats_usr_cmpltn_ack_ba_status)) { |
| ath11k_warn(ab, "Invalid len %d for the tag 0x%x\n", |
| len, tag); |
| return -EINVAL; |
| } |
| |
| peer_id = |
| ((struct htt_ppdu_stats_usr_cmpltn_ack_ba_status *)ptr)->sw_peer_id; |
| cur_user = ath11k_get_ppdu_user_index(&ppdu_info->ppdu_stats, |
| peer_id); |
| if (cur_user < 0) |
| return -EINVAL; |
| user_stats = &ppdu_info->ppdu_stats.user_stats[cur_user]; |
| user_stats->peer_id = peer_id; |
| user_stats->is_valid_peer_id = true; |
| memcpy((void *)&user_stats->ack_ba, ptr, |
| sizeof(struct htt_ppdu_stats_usr_cmpltn_ack_ba_status)); |
| user_stats->tlv_flags |= BIT(tag); |
| break; |
| } |
| return 0; |
| } |
| |
| int ath11k_dp_htt_tlv_iter(struct ath11k_base *ab, const void *ptr, size_t len, |
| int (*iter)(struct ath11k_base *ar, u16 tag, u16 len, |
| const void *ptr, void *data), |
| void *data) |
| { |
| const struct htt_tlv *tlv; |
| const void *begin = ptr; |
| u16 tlv_tag, tlv_len; |
| int ret = -EINVAL; |
| |
| while (len > 0) { |
| if (len < sizeof(*tlv)) { |
| ath11k_err(ab, "htt tlv parse failure at byte %zd (%zu bytes left, %zu expected)\n", |
| ptr - begin, len, sizeof(*tlv)); |
| return -EINVAL; |
| } |
| tlv = (struct htt_tlv *)ptr; |
| tlv_tag = FIELD_GET(HTT_TLV_TAG, tlv->header); |
| tlv_len = FIELD_GET(HTT_TLV_LEN, tlv->header); |
| ptr += sizeof(*tlv); |
| len -= sizeof(*tlv); |
| |
| if (tlv_len > len) { |
| ath11k_err(ab, "htt tlv parse failure of tag %u at byte %zd (%zu bytes left, %u expected)\n", |
| tlv_tag, ptr - begin, len, tlv_len); |
| return -EINVAL; |
| } |
| ret = iter(ab, tlv_tag, tlv_len, ptr, data); |
| if (ret == -ENOMEM) |
| return ret; |
| |
| ptr += tlv_len; |
| len -= tlv_len; |
| } |
| return 0; |
| } |
| |
| static void |
| ath11k_update_per_peer_tx_stats(struct ath11k *ar, |
| struct htt_ppdu_stats *ppdu_stats, u8 user) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct ath11k_peer *peer; |
| struct ieee80211_sta *sta; |
| struct ath11k_sta *arsta; |
| struct htt_ppdu_stats_user_rate *user_rate; |
| struct ath11k_per_peer_tx_stats *peer_stats = &ar->peer_tx_stats; |
| struct htt_ppdu_user_stats *usr_stats = &ppdu_stats->user_stats[user]; |
| struct htt_ppdu_stats_common *common = &ppdu_stats->common; |
| int ret; |
| u8 flags, mcs, nss, bw, sgi, dcm, rate_idx = 0; |
| u32 succ_bytes = 0; |
| u16 rate = 0, succ_pkts = 0; |
| u32 tx_duration = 0; |
| u8 tid = HTT_PPDU_STATS_NON_QOS_TID; |
| bool is_ampdu = false; |
| |
| if (!usr_stats) |
| return; |
| |
| if (!(usr_stats->tlv_flags & BIT(HTT_PPDU_STATS_TAG_USR_RATE))) |
| return; |
| |
| if (usr_stats->tlv_flags & BIT(HTT_PPDU_STATS_TAG_USR_COMPLTN_COMMON)) |
| is_ampdu = |
| HTT_USR_CMPLTN_IS_AMPDU(usr_stats->cmpltn_cmn.flags); |
| |
| if (usr_stats->tlv_flags & |
| BIT(HTT_PPDU_STATS_TAG_USR_COMPLTN_ACK_BA_STATUS)) { |
| succ_bytes = usr_stats->ack_ba.success_bytes; |
| succ_pkts = FIELD_GET(HTT_PPDU_STATS_ACK_BA_INFO_NUM_MSDU_M, |
| usr_stats->ack_ba.info); |
| tid = FIELD_GET(HTT_PPDU_STATS_ACK_BA_INFO_TID_NUM, |
| usr_stats->ack_ba.info); |
| } |
| |
| if (common->fes_duration_us) |
| tx_duration = common->fes_duration_us; |
| |
| user_rate = &usr_stats->rate; |
| flags = HTT_USR_RATE_PREAMBLE(user_rate->rate_flags); |
| bw = HTT_USR_RATE_BW(user_rate->rate_flags) - 2; |
| nss = HTT_USR_RATE_NSS(user_rate->rate_flags) + 1; |
| mcs = HTT_USR_RATE_MCS(user_rate->rate_flags); |
| sgi = HTT_USR_RATE_GI(user_rate->rate_flags); |
| dcm = HTT_USR_RATE_DCM(user_rate->rate_flags); |
| |
| /* Note: If host configured fixed rates and in some other special |
| * cases, the broadcast/management frames are sent in different rates. |
| * Firmware rate's control to be skipped for this? |
| */ |
| |
| if (flags == WMI_RATE_PREAMBLE_HE && mcs > ATH11K_HE_MCS_MAX) { |
| ath11k_warn(ab, "Invalid HE mcs %d peer stats", mcs); |
| return; |
| } |
| |
| if (flags == WMI_RATE_PREAMBLE_VHT && mcs > ATH11K_VHT_MCS_MAX) { |
| ath11k_warn(ab, "Invalid VHT mcs %d peer stats", mcs); |
| return; |
| } |
| |
| if (flags == WMI_RATE_PREAMBLE_HT && (mcs > ATH11K_HT_MCS_MAX || nss < 1)) { |
| ath11k_warn(ab, "Invalid HT mcs %d nss %d peer stats", |
| mcs, nss); |
| return; |
| } |
| |
| if (flags == WMI_RATE_PREAMBLE_CCK || flags == WMI_RATE_PREAMBLE_OFDM) { |
| ret = ath11k_mac_hw_ratecode_to_legacy_rate(mcs, |
| flags, |
| &rate_idx, |
| &rate); |
| if (ret < 0) |
| return; |
| } |
| |
| rcu_read_lock(); |
| spin_lock_bh(&ab->base_lock); |
| peer = ath11k_peer_find_by_id(ab, usr_stats->peer_id); |
| |
| if (!peer || !peer->sta) { |
| spin_unlock_bh(&ab->base_lock); |
| rcu_read_unlock(); |
| return; |
| } |
| |
| sta = peer->sta; |
| arsta = (struct ath11k_sta *)sta->drv_priv; |
| |
| memset(&arsta->txrate, 0, sizeof(arsta->txrate)); |
| |
| switch (flags) { |
| case WMI_RATE_PREAMBLE_OFDM: |
| arsta->txrate.legacy = rate; |
| break; |
| case WMI_RATE_PREAMBLE_CCK: |
| arsta->txrate.legacy = rate; |
| break; |
| case WMI_RATE_PREAMBLE_HT: |
| arsta->txrate.mcs = mcs + 8 * (nss - 1); |
| arsta->txrate.flags = RATE_INFO_FLAGS_MCS; |
| if (sgi) |
| arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; |
| break; |
| case WMI_RATE_PREAMBLE_VHT: |
| arsta->txrate.mcs = mcs; |
| arsta->txrate.flags = RATE_INFO_FLAGS_VHT_MCS; |
| if (sgi) |
| arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; |
| break; |
| case WMI_RATE_PREAMBLE_HE: |
| arsta->txrate.mcs = mcs; |
| arsta->txrate.flags = RATE_INFO_FLAGS_HE_MCS; |
| arsta->txrate.he_dcm = dcm; |
| arsta->txrate.he_gi = ath11k_mac_he_gi_to_nl80211_he_gi(sgi); |
| arsta->txrate.he_ru_alloc = ath11k_mac_phy_he_ru_to_nl80211_he_ru_alloc |
| ((user_rate->ru_end - |
| user_rate->ru_start) + 1); |
| break; |
| } |
| |
| arsta->txrate.nss = nss; |
| |
| arsta->txrate.bw = ath11k_mac_bw_to_mac80211_bw(bw); |
| arsta->tx_duration += tx_duration; |
| memcpy(&arsta->last_txrate, &arsta->txrate, sizeof(struct rate_info)); |
| |
| /* PPDU stats reported for mgmt packet doesn't have valid tx bytes. |
| * So skip peer stats update for mgmt packets. |
| */ |
| if (tid < HTT_PPDU_STATS_NON_QOS_TID) { |
| memset(peer_stats, 0, sizeof(*peer_stats)); |
| peer_stats->succ_pkts = succ_pkts; |
| peer_stats->succ_bytes = succ_bytes; |
| peer_stats->is_ampdu = is_ampdu; |
| peer_stats->duration = tx_duration; |
| peer_stats->ba_fails = |
| HTT_USR_CMPLTN_LONG_RETRY(usr_stats->cmpltn_cmn.flags) + |
| HTT_USR_CMPLTN_SHORT_RETRY(usr_stats->cmpltn_cmn.flags); |
| |
| if (ath11k_debugfs_is_extd_tx_stats_enabled(ar)) |
| ath11k_debugfs_sta_add_tx_stats(arsta, peer_stats, rate_idx); |
| } |
| |
| spin_unlock_bh(&ab->base_lock); |
| rcu_read_unlock(); |
| } |
| |
| static void ath11k_htt_update_ppdu_stats(struct ath11k *ar, |
| struct htt_ppdu_stats *ppdu_stats) |
| { |
| u8 user; |
| |
| for (user = 0; user < HTT_PPDU_STATS_MAX_USERS - 1; user++) |
| ath11k_update_per_peer_tx_stats(ar, ppdu_stats, user); |
| } |
| |
| static |
| struct htt_ppdu_stats_info *ath11k_dp_htt_get_ppdu_desc(struct ath11k *ar, |
| u32 ppdu_id) |
| { |
| struct htt_ppdu_stats_info *ppdu_info; |
| |
| spin_lock_bh(&ar->data_lock); |
| if (!list_empty(&ar->ppdu_stats_info)) { |
| list_for_each_entry(ppdu_info, &ar->ppdu_stats_info, list) { |
| if (ppdu_info->ppdu_id == ppdu_id) { |
| spin_unlock_bh(&ar->data_lock); |
| return ppdu_info; |
| } |
| } |
| |
| if (ar->ppdu_stat_list_depth > HTT_PPDU_DESC_MAX_DEPTH) { |
| ppdu_info = list_first_entry(&ar->ppdu_stats_info, |
| typeof(*ppdu_info), list); |
| list_del(&ppdu_info->list); |
| ar->ppdu_stat_list_depth--; |
| ath11k_htt_update_ppdu_stats(ar, &ppdu_info->ppdu_stats); |
| kfree(ppdu_info); |
| } |
| } |
| spin_unlock_bh(&ar->data_lock); |
| |
| ppdu_info = kzalloc(sizeof(*ppdu_info), GFP_ATOMIC); |
| if (!ppdu_info) |
| return NULL; |
| |
| spin_lock_bh(&ar->data_lock); |
| list_add_tail(&ppdu_info->list, &ar->ppdu_stats_info); |
| ar->ppdu_stat_list_depth++; |
| spin_unlock_bh(&ar->data_lock); |
| |
| return ppdu_info; |
| } |
| |
| static int ath11k_htt_pull_ppdu_stats(struct ath11k_base *ab, |
| struct sk_buff *skb) |
| { |
| struct ath11k_htt_ppdu_stats_msg *msg; |
| struct htt_ppdu_stats_info *ppdu_info; |
| struct ath11k *ar; |
| int ret; |
| u8 pdev_id; |
| u32 ppdu_id, len; |
| |
| msg = (struct ath11k_htt_ppdu_stats_msg *)skb->data; |
| len = FIELD_GET(HTT_T2H_PPDU_STATS_INFO_PAYLOAD_SIZE, msg->info); |
| pdev_id = FIELD_GET(HTT_T2H_PPDU_STATS_INFO_PDEV_ID, msg->info); |
| ppdu_id = msg->ppdu_id; |
| |
| rcu_read_lock(); |
| ar = ath11k_mac_get_ar_by_pdev_id(ab, pdev_id); |
| if (!ar) { |
| ret = -EINVAL; |
| goto exit; |
| } |
| |
| if (ath11k_debugfs_is_pktlog_lite_mode_enabled(ar)) |
| trace_ath11k_htt_ppdu_stats(ar, skb->data, len); |
| |
| ppdu_info = ath11k_dp_htt_get_ppdu_desc(ar, ppdu_id); |
| if (!ppdu_info) { |
| ret = -EINVAL; |
| goto exit; |
| } |
| |
| ppdu_info->ppdu_id = ppdu_id; |
| ret = ath11k_dp_htt_tlv_iter(ab, msg->data, len, |
| ath11k_htt_tlv_ppdu_stats_parse, |
| (void *)ppdu_info); |
| if (ret) { |
| ath11k_warn(ab, "Failed to parse tlv %d\n", ret); |
| goto exit; |
| } |
| |
| exit: |
| rcu_read_unlock(); |
| |
| return ret; |
| } |
| |
| static void ath11k_htt_pktlog(struct ath11k_base *ab, struct sk_buff *skb) |
| { |
| struct htt_pktlog_msg *data = (struct htt_pktlog_msg *)skb->data; |
| struct ath_pktlog_hdr *hdr = (struct ath_pktlog_hdr *)data; |
| struct ath11k *ar; |
| u8 pdev_id; |
| |
| pdev_id = FIELD_GET(HTT_T2H_PPDU_STATS_INFO_PDEV_ID, data->hdr); |
| ar = ath11k_mac_get_ar_by_pdev_id(ab, pdev_id); |
| if (!ar) { |
| ath11k_warn(ab, "invalid pdev id %d on htt pktlog\n", pdev_id); |
| return; |
| } |
| |
| trace_ath11k_htt_pktlog(ar, data->payload, hdr->size, |
| ar->ab->pktlog_defs_checksum); |
| } |
| |
| static void ath11k_htt_backpressure_event_handler(struct ath11k_base *ab, |
| struct sk_buff *skb) |
| { |
| u32 *data = (u32 *)skb->data; |
| u8 pdev_id, ring_type, ring_id, pdev_idx; |
| u16 hp, tp; |
| u32 backpressure_time; |
| struct ath11k_bp_stats *bp_stats; |
| |
| pdev_id = FIELD_GET(HTT_BACKPRESSURE_EVENT_PDEV_ID_M, *data); |
| ring_type = FIELD_GET(HTT_BACKPRESSURE_EVENT_RING_TYPE_M, *data); |
| ring_id = FIELD_GET(HTT_BACKPRESSURE_EVENT_RING_ID_M, *data); |
| ++data; |
| |
| hp = FIELD_GET(HTT_BACKPRESSURE_EVENT_HP_M, *data); |
| tp = FIELD_GET(HTT_BACKPRESSURE_EVENT_TP_M, *data); |
| ++data; |
| |
| backpressure_time = *data; |
| |
| 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", |
| pdev_id, ring_type, ring_id, hp, tp, backpressure_time); |
| |
| if (ring_type == HTT_BACKPRESSURE_UMAC_RING_TYPE) { |
| if (ring_id >= HTT_SW_UMAC_RING_IDX_MAX) |
| return; |
| |
| bp_stats = &ab->soc_stats.bp_stats.umac_ring_bp_stats[ring_id]; |
| } else if (ring_type == HTT_BACKPRESSURE_LMAC_RING_TYPE) { |
| pdev_idx = DP_HW2SW_MACID(pdev_id); |
| |
| if (ring_id >= HTT_SW_LMAC_RING_IDX_MAX || pdev_idx >= MAX_RADIOS) |
| return; |
| |
| bp_stats = &ab->soc_stats.bp_stats.lmac_ring_bp_stats[ring_id][pdev_idx]; |
| } else { |
| ath11k_warn(ab, "unknown ring type received in htt bp event %d\n", |
| ring_type); |
| return; |
| } |
| |
| spin_lock_bh(&ab->base_lock); |
| bp_stats->hp = hp; |
| bp_stats->tp = tp; |
| bp_stats->count++; |
| bp_stats->jiffies = jiffies; |
| spin_unlock_bh(&ab->base_lock); |
| } |
| |
| void ath11k_dp_htt_htc_t2h_msg_handler(struct ath11k_base *ab, |
| struct sk_buff *skb) |
| { |
| struct ath11k_dp *dp = &ab->dp; |
| struct htt_resp_msg *resp = (struct htt_resp_msg *)skb->data; |
| enum htt_t2h_msg_type type = FIELD_GET(HTT_T2H_MSG_TYPE, *(u32 *)resp); |
| u16 peer_id; |
| u8 vdev_id; |
| u8 mac_addr[ETH_ALEN]; |
| u16 peer_mac_h16; |
| u16 ast_hash; |
| u16 hw_peer_id; |
| |
| ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "dp_htt rx msg type :0x%0x\n", type); |
| |
| switch (type) { |
| case HTT_T2H_MSG_TYPE_VERSION_CONF: |
| dp->htt_tgt_ver_major = FIELD_GET(HTT_T2H_VERSION_CONF_MAJOR, |
| resp->version_msg.version); |
| dp->htt_tgt_ver_minor = FIELD_GET(HTT_T2H_VERSION_CONF_MINOR, |
| resp->version_msg.version); |
| complete(&dp->htt_tgt_version_received); |
| break; |
| case HTT_T2H_MSG_TYPE_PEER_MAP: |
| vdev_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO_VDEV_ID, |
| resp->peer_map_ev.info); |
| peer_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO_PEER_ID, |
| resp->peer_map_ev.info); |
| peer_mac_h16 = FIELD_GET(HTT_T2H_PEER_MAP_INFO1_MAC_ADDR_H16, |
| resp->peer_map_ev.info1); |
| ath11k_dp_get_mac_addr(resp->peer_map_ev.mac_addr_l32, |
| peer_mac_h16, mac_addr); |
| ath11k_peer_map_event(ab, vdev_id, peer_id, mac_addr, 0, 0); |
| break; |
| case HTT_T2H_MSG_TYPE_PEER_MAP2: |
| vdev_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO_VDEV_ID, |
| resp->peer_map_ev.info); |
| peer_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO_PEER_ID, |
| resp->peer_map_ev.info); |
| peer_mac_h16 = FIELD_GET(HTT_T2H_PEER_MAP_INFO1_MAC_ADDR_H16, |
| resp->peer_map_ev.info1); |
| ath11k_dp_get_mac_addr(resp->peer_map_ev.mac_addr_l32, |
| peer_mac_h16, mac_addr); |
| ast_hash = FIELD_GET(HTT_T2H_PEER_MAP_INFO2_AST_HASH_VAL, |
| resp->peer_map_ev.info2); |
| hw_peer_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO1_HW_PEER_ID, |
| resp->peer_map_ev.info1); |
| ath11k_peer_map_event(ab, vdev_id, peer_id, mac_addr, ast_hash, |
| hw_peer_id); |
| break; |
| case HTT_T2H_MSG_TYPE_PEER_UNMAP: |
| case HTT_T2H_MSG_TYPE_PEER_UNMAP2: |
| peer_id = FIELD_GET(HTT_T2H_PEER_UNMAP_INFO_PEER_ID, |
| resp->peer_unmap_ev.info); |
| ath11k_peer_unmap_event(ab, peer_id); |
| break; |
| case HTT_T2H_MSG_TYPE_PPDU_STATS_IND: |
| ath11k_htt_pull_ppdu_stats(ab, skb); |
| break; |
| case HTT_T2H_MSG_TYPE_EXT_STATS_CONF: |
| ath11k_debugfs_htt_ext_stats_handler(ab, skb); |
| break; |
| case HTT_T2H_MSG_TYPE_PKTLOG: |
| ath11k_htt_pktlog(ab, skb); |
| break; |
| case HTT_T2H_MSG_TYPE_BKPRESSURE_EVENT_IND: |
| ath11k_htt_backpressure_event_handler(ab, skb); |
| break; |
| default: |
| ath11k_warn(ab, "htt event %d not handled\n", type); |
| break; |
| } |
| |
| dev_kfree_skb_any(skb); |
| } |
| |
| static int ath11k_dp_rx_msdu_coalesce(struct ath11k *ar, |
| struct sk_buff_head *msdu_list, |
| struct sk_buff *first, struct sk_buff *last, |
| u8 l3pad_bytes, int msdu_len) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct sk_buff *skb; |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(first); |
| int buf_first_hdr_len, buf_first_len; |
| struct hal_rx_desc *ldesc; |
| int space_extra, rem_len, buf_len; |
| u32 hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| /* As the msdu is spread across multiple rx buffers, |
| * find the offset to the start of msdu for computing |
| * the length of the msdu in the first buffer. |
| */ |
| buf_first_hdr_len = hal_rx_desc_sz + l3pad_bytes; |
| buf_first_len = DP_RX_BUFFER_SIZE - buf_first_hdr_len; |
| |
| if (WARN_ON_ONCE(msdu_len <= buf_first_len)) { |
| skb_put(first, buf_first_hdr_len + msdu_len); |
| skb_pull(first, buf_first_hdr_len); |
| return 0; |
| } |
| |
| ldesc = (struct hal_rx_desc *)last->data; |
| rxcb->is_first_msdu = ath11k_dp_rx_h_msdu_end_first_msdu(ab, ldesc); |
| rxcb->is_last_msdu = ath11k_dp_rx_h_msdu_end_last_msdu(ab, ldesc); |
| |
| /* MSDU spans over multiple buffers because the length of the MSDU |
| * exceeds DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE. So assume the data |
| * in the first buf is of length DP_RX_BUFFER_SIZE - HAL_RX_DESC_SIZE. |
| */ |
| skb_put(first, DP_RX_BUFFER_SIZE); |
| skb_pull(first, buf_first_hdr_len); |
| |
| /* When an MSDU spread over multiple buffers attention, MSDU_END and |
| * MPDU_END tlvs are valid only in the last buffer. Copy those tlvs. |
| */ |
| ath11k_dp_rx_desc_end_tlv_copy(ab, rxcb->rx_desc, ldesc); |
| |
| space_extra = msdu_len - (buf_first_len + skb_tailroom(first)); |
| if (space_extra > 0 && |
| (pskb_expand_head(first, 0, space_extra, GFP_ATOMIC) < 0)) { |
| /* Free up all buffers of the MSDU */ |
| while ((skb = __skb_dequeue(msdu_list)) != NULL) { |
| rxcb = ATH11K_SKB_RXCB(skb); |
| if (!rxcb->is_continuation) { |
| dev_kfree_skb_any(skb); |
| break; |
| } |
| dev_kfree_skb_any(skb); |
| } |
| return -ENOMEM; |
| } |
| |
| rem_len = msdu_len - buf_first_len; |
| while ((skb = __skb_dequeue(msdu_list)) != NULL && rem_len > 0) { |
| rxcb = ATH11K_SKB_RXCB(skb); |
| if (rxcb->is_continuation) |
| buf_len = DP_RX_BUFFER_SIZE - hal_rx_desc_sz; |
| else |
| buf_len = rem_len; |
| |
| if (buf_len > (DP_RX_BUFFER_SIZE - hal_rx_desc_sz)) { |
| WARN_ON_ONCE(1); |
| dev_kfree_skb_any(skb); |
| return -EINVAL; |
| } |
| |
| skb_put(skb, buf_len + hal_rx_desc_sz); |
| skb_pull(skb, hal_rx_desc_sz); |
| skb_copy_from_linear_data(skb, skb_put(first, buf_len), |
| buf_len); |
| dev_kfree_skb_any(skb); |
| |
| rem_len -= buf_len; |
| if (!rxcb->is_continuation) |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static struct sk_buff *ath11k_dp_rx_get_msdu_last_buf(struct sk_buff_head *msdu_list, |
| struct sk_buff *first) |
| { |
| struct sk_buff *skb; |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(first); |
| |
| if (!rxcb->is_continuation) |
| return first; |
| |
| skb_queue_walk(msdu_list, skb) { |
| rxcb = ATH11K_SKB_RXCB(skb); |
| if (!rxcb->is_continuation) |
| return skb; |
| } |
| |
| return NULL; |
| } |
| |
| static void ath11k_dp_rx_h_csum_offload(struct ath11k *ar, struct sk_buff *msdu) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| struct rx_attention *rx_attention; |
| bool ip_csum_fail, l4_csum_fail; |
| |
| rx_attention = ath11k_dp_rx_get_attention(ar->ab, rxcb->rx_desc); |
| ip_csum_fail = ath11k_dp_rx_h_attn_ip_cksum_fail(rx_attention); |
| l4_csum_fail = ath11k_dp_rx_h_attn_l4_cksum_fail(rx_attention); |
| |
| msdu->ip_summed = (ip_csum_fail || l4_csum_fail) ? |
| CHECKSUM_NONE : CHECKSUM_UNNECESSARY; |
| } |
| |
| static int ath11k_dp_rx_crypto_mic_len(struct ath11k *ar, |
| enum hal_encrypt_type enctype) |
| { |
| switch (enctype) { |
| case HAL_ENCRYPT_TYPE_OPEN: |
| case HAL_ENCRYPT_TYPE_TKIP_NO_MIC: |
| case HAL_ENCRYPT_TYPE_TKIP_MIC: |
| return 0; |
| case HAL_ENCRYPT_TYPE_CCMP_128: |
| return IEEE80211_CCMP_MIC_LEN; |
| case HAL_ENCRYPT_TYPE_CCMP_256: |
| return IEEE80211_CCMP_256_MIC_LEN; |
| case HAL_ENCRYPT_TYPE_GCMP_128: |
| case HAL_ENCRYPT_TYPE_AES_GCMP_256: |
| return IEEE80211_GCMP_MIC_LEN; |
| case HAL_ENCRYPT_TYPE_WEP_40: |
| case HAL_ENCRYPT_TYPE_WEP_104: |
| case HAL_ENCRYPT_TYPE_WEP_128: |
| case HAL_ENCRYPT_TYPE_WAPI_GCM_SM4: |
| case HAL_ENCRYPT_TYPE_WAPI: |
| break; |
| } |
| |
| ath11k_warn(ar->ab, "unsupported encryption type %d for mic len\n", enctype); |
| return 0; |
| } |
| |
| static int ath11k_dp_rx_crypto_param_len(struct ath11k *ar, |
| enum hal_encrypt_type enctype) |
| { |
| switch (enctype) { |
| case HAL_ENCRYPT_TYPE_OPEN: |
| return 0; |
| case HAL_ENCRYPT_TYPE_TKIP_NO_MIC: |
| case HAL_ENCRYPT_TYPE_TKIP_MIC: |
| return IEEE80211_TKIP_IV_LEN; |
| case HAL_ENCRYPT_TYPE_CCMP_128: |
| return IEEE80211_CCMP_HDR_LEN; |
| case HAL_ENCRYPT_TYPE_CCMP_256: |
| return IEEE80211_CCMP_256_HDR_LEN; |
| case HAL_ENCRYPT_TYPE_GCMP_128: |
| case HAL_ENCRYPT_TYPE_AES_GCMP_256: |
| return IEEE80211_GCMP_HDR_LEN; |
| case HAL_ENCRYPT_TYPE_WEP_40: |
| case HAL_ENCRYPT_TYPE_WEP_104: |
| case HAL_ENCRYPT_TYPE_WEP_128: |
| case HAL_ENCRYPT_TYPE_WAPI_GCM_SM4: |
| case HAL_ENCRYPT_TYPE_WAPI: |
| break; |
| } |
| |
| ath11k_warn(ar->ab, "unsupported encryption type %d\n", enctype); |
| return 0; |
| } |
| |
| static int ath11k_dp_rx_crypto_icv_len(struct ath11k *ar, |
| enum hal_encrypt_type enctype) |
| { |
| switch (enctype) { |
| case HAL_ENCRYPT_TYPE_OPEN: |
| case HAL_ENCRYPT_TYPE_CCMP_128: |
| case HAL_ENCRYPT_TYPE_CCMP_256: |
| case HAL_ENCRYPT_TYPE_GCMP_128: |
| case HAL_ENCRYPT_TYPE_AES_GCMP_256: |
| return 0; |
| case HAL_ENCRYPT_TYPE_TKIP_NO_MIC: |
| case HAL_ENCRYPT_TYPE_TKIP_MIC: |
| return IEEE80211_TKIP_ICV_LEN; |
| case HAL_ENCRYPT_TYPE_WEP_40: |
| case HAL_ENCRYPT_TYPE_WEP_104: |
| case HAL_ENCRYPT_TYPE_WEP_128: |
| case HAL_ENCRYPT_TYPE_WAPI_GCM_SM4: |
| case HAL_ENCRYPT_TYPE_WAPI: |
| break; |
| } |
| |
| ath11k_warn(ar->ab, "unsupported encryption type %d\n", enctype); |
| return 0; |
| } |
| |
| static void ath11k_dp_rx_h_undecap_nwifi(struct ath11k *ar, |
| struct sk_buff *msdu, |
| u8 *first_hdr, |
| enum hal_encrypt_type enctype, |
| struct ieee80211_rx_status *status) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| u8 decap_hdr[DP_MAX_NWIFI_HDR_LEN]; |
| struct ieee80211_hdr *hdr; |
| size_t hdr_len; |
| u8 da[ETH_ALEN]; |
| u8 sa[ETH_ALEN]; |
| u16 qos_ctl = 0; |
| u8 *qos; |
| |
| /* copy SA & DA and pull decapped header */ |
| hdr = (struct ieee80211_hdr *)msdu->data; |
| hdr_len = ieee80211_hdrlen(hdr->frame_control); |
| ether_addr_copy(da, ieee80211_get_DA(hdr)); |
| ether_addr_copy(sa, ieee80211_get_SA(hdr)); |
| skb_pull(msdu, ieee80211_hdrlen(hdr->frame_control)); |
| |
| if (rxcb->is_first_msdu) { |
| /* original 802.11 header is valid for the first msdu |
| * hence we can reuse the same header |
| */ |
| hdr = (struct ieee80211_hdr *)first_hdr; |
| hdr_len = ieee80211_hdrlen(hdr->frame_control); |
| |
| /* Each A-MSDU subframe will be reported as a separate MSDU, |
| * so strip the A-MSDU bit from QoS Ctl. |
| */ |
| if (ieee80211_is_data_qos(hdr->frame_control)) { |
| qos = ieee80211_get_qos_ctl(hdr); |
| qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; |
| } |
| } else { |
| /* Rebuild qos header if this is a middle/last msdu */ |
| hdr->frame_control |= __cpu_to_le16(IEEE80211_STYPE_QOS_DATA); |
| |
| /* Reset the order bit as the HT_Control header is stripped */ |
| hdr->frame_control &= ~(__cpu_to_le16(IEEE80211_FCTL_ORDER)); |
| |
| qos_ctl = rxcb->tid; |
| |
| if (ath11k_dp_rx_h_msdu_start_mesh_ctl_present(ar->ab, rxcb->rx_desc)) |
| qos_ctl |= IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT; |
| |
| /* TODO Add other QoS ctl fields when required */ |
| |
| /* copy decap header before overwriting for reuse below */ |
| memcpy(decap_hdr, (uint8_t *)hdr, hdr_len); |
| } |
| |
| if (!(status->flag & RX_FLAG_IV_STRIPPED)) { |
| memcpy(skb_push(msdu, |
| ath11k_dp_rx_crypto_param_len(ar, enctype)), |
| (void *)hdr + hdr_len, |
| ath11k_dp_rx_crypto_param_len(ar, enctype)); |
| } |
| |
| if (!rxcb->is_first_msdu) { |
| memcpy(skb_push(msdu, |
| IEEE80211_QOS_CTL_LEN), &qos_ctl, |
| IEEE80211_QOS_CTL_LEN); |
| memcpy(skb_push(msdu, hdr_len), decap_hdr, hdr_len); |
| return; |
| } |
| |
| memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); |
| |
| /* original 802.11 header has a different DA and in |
| * case of 4addr it may also have different SA |
| */ |
| hdr = (struct ieee80211_hdr *)msdu->data; |
| ether_addr_copy(ieee80211_get_DA(hdr), da); |
| ether_addr_copy(ieee80211_get_SA(hdr), sa); |
| } |
| |
| static void ath11k_dp_rx_h_undecap_raw(struct ath11k *ar, struct sk_buff *msdu, |
| enum hal_encrypt_type enctype, |
| struct ieee80211_rx_status *status, |
| bool decrypted) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| struct ieee80211_hdr *hdr; |
| size_t hdr_len; |
| size_t crypto_len; |
| |
| if (!rxcb->is_first_msdu || |
| !(rxcb->is_first_msdu && rxcb->is_last_msdu)) { |
| WARN_ON_ONCE(1); |
| return; |
| } |
| |
| skb_trim(msdu, msdu->len - FCS_LEN); |
| |
| if (!decrypted) |
| return; |
| |
| hdr = (void *)msdu->data; |
| |
| /* Tail */ |
| if (status->flag & RX_FLAG_IV_STRIPPED) { |
| skb_trim(msdu, msdu->len - |
| ath11k_dp_rx_crypto_mic_len(ar, enctype)); |
| |
| skb_trim(msdu, msdu->len - |
| ath11k_dp_rx_crypto_icv_len(ar, enctype)); |
| } else { |
| /* MIC */ |
| if (status->flag & RX_FLAG_MIC_STRIPPED) |
| skb_trim(msdu, msdu->len - |
| ath11k_dp_rx_crypto_mic_len(ar, enctype)); |
| |
| /* ICV */ |
| if (status->flag & RX_FLAG_ICV_STRIPPED) |
| skb_trim(msdu, msdu->len - |
| ath11k_dp_rx_crypto_icv_len(ar, enctype)); |
| } |
| |
| /* MMIC */ |
| if ((status->flag & RX_FLAG_MMIC_STRIPPED) && |
| !ieee80211_has_morefrags(hdr->frame_control) && |
| enctype == HAL_ENCRYPT_TYPE_TKIP_MIC) |
| skb_trim(msdu, msdu->len - IEEE80211_CCMP_MIC_LEN); |
| |
| /* Head */ |
| if (status->flag & RX_FLAG_IV_STRIPPED) { |
| hdr_len = ieee80211_hdrlen(hdr->frame_control); |
| crypto_len = ath11k_dp_rx_crypto_param_len(ar, enctype); |
| |
| memmove((void *)msdu->data + crypto_len, |
| (void *)msdu->data, hdr_len); |
| skb_pull(msdu, crypto_len); |
| } |
| } |
| |
| static void *ath11k_dp_rx_h_find_rfc1042(struct ath11k *ar, |
| struct sk_buff *msdu, |
| enum hal_encrypt_type enctype) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| struct ieee80211_hdr *hdr; |
| size_t hdr_len, crypto_len; |
| void *rfc1042; |
| bool is_amsdu; |
| |
| is_amsdu = !(rxcb->is_first_msdu && rxcb->is_last_msdu); |
| hdr = (struct ieee80211_hdr *)ath11k_dp_rx_h_80211_hdr(ar->ab, rxcb->rx_desc); |
| rfc1042 = hdr; |
| |
| if (rxcb->is_first_msdu) { |
| hdr_len = ieee80211_hdrlen(hdr->frame_control); |
| crypto_len = ath11k_dp_rx_crypto_param_len(ar, enctype); |
| |
| rfc1042 += hdr_len + crypto_len; |
| } |
| |
| if (is_amsdu) |
| rfc1042 += sizeof(struct ath11k_dp_amsdu_subframe_hdr); |
| |
| return rfc1042; |
| } |
| |
| static void ath11k_dp_rx_h_undecap_eth(struct ath11k *ar, |
| struct sk_buff *msdu, |
| u8 *first_hdr, |
| enum hal_encrypt_type enctype, |
| struct ieee80211_rx_status *status) |
| { |
| struct ieee80211_hdr *hdr; |
| struct ethhdr *eth; |
| size_t hdr_len; |
| u8 da[ETH_ALEN]; |
| u8 sa[ETH_ALEN]; |
| void *rfc1042; |
| |
| rfc1042 = ath11k_dp_rx_h_find_rfc1042(ar, msdu, enctype); |
| if (WARN_ON_ONCE(!rfc1042)) |
| return; |
| |
| /* pull decapped header and copy SA & DA */ |
| eth = (struct ethhdr *)msdu->data; |
| ether_addr_copy(da, eth->h_dest); |
| ether_addr_copy(sa, eth->h_source); |
| skb_pull(msdu, sizeof(struct ethhdr)); |
| |
| /* push rfc1042/llc/snap */ |
| memcpy(skb_push(msdu, sizeof(struct ath11k_dp_rfc1042_hdr)), rfc1042, |
| sizeof(struct ath11k_dp_rfc1042_hdr)); |
| |
| /* push original 802.11 header */ |
| hdr = (struct ieee80211_hdr *)first_hdr; |
| hdr_len = ieee80211_hdrlen(hdr->frame_control); |
| |
| if (!(status->flag & RX_FLAG_IV_STRIPPED)) { |
| memcpy(skb_push(msdu, |
| ath11k_dp_rx_crypto_param_len(ar, enctype)), |
| (void *)hdr + hdr_len, |
| ath11k_dp_rx_crypto_param_len(ar, enctype)); |
| } |
| |
| memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); |
| |
| /* original 802.11 header has a different DA and in |
| * case of 4addr it may also have different SA |
| */ |
| hdr = (struct ieee80211_hdr *)msdu->data; |
| ether_addr_copy(ieee80211_get_DA(hdr), da); |
| ether_addr_copy(ieee80211_get_SA(hdr), sa); |
| } |
| |
| static void ath11k_dp_rx_h_undecap(struct ath11k *ar, struct sk_buff *msdu, |
| struct hal_rx_desc *rx_desc, |
| enum hal_encrypt_type enctype, |
| struct ieee80211_rx_status *status, |
| bool decrypted) |
| { |
| u8 *first_hdr; |
| u8 decap; |
| struct ethhdr *ehdr; |
| |
| first_hdr = ath11k_dp_rx_h_80211_hdr(ar->ab, rx_desc); |
| decap = ath11k_dp_rx_h_msdu_start_decap_type(ar->ab, rx_desc); |
| |
| switch (decap) { |
| case DP_RX_DECAP_TYPE_NATIVE_WIFI: |
| ath11k_dp_rx_h_undecap_nwifi(ar, msdu, first_hdr, |
| enctype, status); |
| break; |
| case DP_RX_DECAP_TYPE_RAW: |
| ath11k_dp_rx_h_undecap_raw(ar, msdu, enctype, status, |
| decrypted); |
| break; |
| case DP_RX_DECAP_TYPE_ETHERNET2_DIX: |
| ehdr = (struct ethhdr *)msdu->data; |
| |
| /* mac80211 allows fast path only for authorized STA */ |
| if (ehdr->h_proto == cpu_to_be16(ETH_P_PAE)) { |
| ATH11K_SKB_RXCB(msdu)->is_eapol = true; |
| ath11k_dp_rx_h_undecap_eth(ar, msdu, first_hdr, |
| enctype, status); |
| break; |
| } |
| |
| /* PN for mcast packets will be validated in mac80211; |
| * remove eth header and add 802.11 header. |
| */ |
| if (ATH11K_SKB_RXCB(msdu)->is_mcbc && decrypted) |
| ath11k_dp_rx_h_undecap_eth(ar, msdu, first_hdr, |
| enctype, status); |
| break; |
| case DP_RX_DECAP_TYPE_8023: |
| /* TODO: Handle undecap for these formats */ |
| break; |
| } |
| } |
| |
| static struct ath11k_peer * |
| ath11k_dp_rx_h_find_peer(struct ath11k_base *ab, struct sk_buff *msdu) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| struct hal_rx_desc *rx_desc = rxcb->rx_desc; |
| struct ath11k_peer *peer = NULL; |
| |
| lockdep_assert_held(&ab->base_lock); |
| |
| if (rxcb->peer_id) |
| peer = ath11k_peer_find_by_id(ab, rxcb->peer_id); |
| |
| if (peer) |
| return peer; |
| |
| if (!rx_desc || !(ath11k_dp_rxdesc_mac_addr2_valid(ab, rx_desc))) |
| return NULL; |
| |
| peer = ath11k_peer_find_by_addr(ab, |
| ath11k_dp_rxdesc_mpdu_start_addr2(ab, rx_desc)); |
| return peer; |
| } |
| |
| static void ath11k_dp_rx_h_mpdu(struct ath11k *ar, |
| struct sk_buff *msdu, |
| struct hal_rx_desc *rx_desc, |
| struct ieee80211_rx_status *rx_status) |
| { |
| bool fill_crypto_hdr; |
| enum hal_encrypt_type enctype; |
| bool is_decrypted = false; |
| struct ath11k_skb_rxcb *rxcb; |
| struct ieee80211_hdr *hdr; |
| struct ath11k_peer *peer; |
| struct rx_attention *rx_attention; |
| u32 err_bitmap; |
| |
| /* PN for multicast packets will be checked in mac80211 */ |
| rxcb = ATH11K_SKB_RXCB(msdu); |
| fill_crypto_hdr = ath11k_dp_rx_h_attn_is_mcbc(ar->ab, rx_desc); |
| rxcb->is_mcbc = fill_crypto_hdr; |
| |
| if (rxcb->is_mcbc) { |
| rxcb->peer_id = ath11k_dp_rx_h_mpdu_start_peer_id(ar->ab, rx_desc); |
| rxcb->seq_no = ath11k_dp_rx_h_mpdu_start_seq_no(ar->ab, rx_desc); |
| } |
| |
| spin_lock_bh(&ar->ab->base_lock); |
| peer = ath11k_dp_rx_h_find_peer(ar->ab, msdu); |
| if (peer) { |
| if (rxcb->is_mcbc) |
| enctype = peer->sec_type_grp; |
| else |
| enctype = peer->sec_type; |
| } else { |
| enctype = ath11k_dp_rx_h_mpdu_start_enctype(ar->ab, rx_desc); |
| } |
| spin_unlock_bh(&ar->ab->base_lock); |
| |
| rx_attention = ath11k_dp_rx_get_attention(ar->ab, rx_desc); |
| err_bitmap = ath11k_dp_rx_h_attn_mpdu_err(rx_attention); |
| if (enctype != HAL_ENCRYPT_TYPE_OPEN && !err_bitmap) |
| is_decrypted = ath11k_dp_rx_h_attn_is_decrypted(rx_attention); |
| |
| /* Clear per-MPDU flags while leaving per-PPDU flags intact */ |
| rx_status->flag &= ~(RX_FLAG_FAILED_FCS_CRC | |
| RX_FLAG_MMIC_ERROR | |
| RX_FLAG_DECRYPTED | |
| RX_FLAG_IV_STRIPPED | |
| RX_FLAG_MMIC_STRIPPED); |
| |
| if (err_bitmap & DP_RX_MPDU_ERR_FCS) |
| rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; |
| if (err_bitmap & DP_RX_MPDU_ERR_TKIP_MIC) |
| rx_status->flag |= RX_FLAG_MMIC_ERROR; |
| |
| if (is_decrypted) { |
| rx_status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_MMIC_STRIPPED; |
| |
| if (fill_crypto_hdr) |
| rx_status->flag |= RX_FLAG_MIC_STRIPPED | |
| RX_FLAG_ICV_STRIPPED; |
| else |
| rx_status->flag |= RX_FLAG_IV_STRIPPED | |
| RX_FLAG_PN_VALIDATED; |
| } |
| |
| ath11k_dp_rx_h_csum_offload(ar, msdu); |
| ath11k_dp_rx_h_undecap(ar, msdu, rx_desc, |
| enctype, rx_status, is_decrypted); |
| |
| if (!is_decrypted || fill_crypto_hdr) |
| return; |
| |
| if (ath11k_dp_rx_h_msdu_start_decap_type(ar->ab, rx_desc) != |
| DP_RX_DECAP_TYPE_ETHERNET2_DIX) { |
| hdr = (void *)msdu->data; |
| hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
| } |
| } |
| |
| static void ath11k_dp_rx_h_rate(struct ath11k *ar, struct hal_rx_desc *rx_desc, |
| struct ieee80211_rx_status *rx_status) |
| { |
| struct ieee80211_supported_band *sband; |
| enum rx_msdu_start_pkt_type pkt_type; |
| u8 bw; |
| u8 rate_mcs, nss; |
| u8 sgi; |
| bool is_cck, is_ldpc; |
| |
| pkt_type = ath11k_dp_rx_h_msdu_start_pkt_type(ar->ab, rx_desc); |
| bw = ath11k_dp_rx_h_msdu_start_rx_bw(ar->ab, rx_desc); |
| rate_mcs = ath11k_dp_rx_h_msdu_start_rate_mcs(ar->ab, rx_desc); |
| nss = ath11k_dp_rx_h_msdu_start_nss(ar->ab, rx_desc); |
| sgi = ath11k_dp_rx_h_msdu_start_sgi(ar->ab, rx_desc); |
| |
| switch (pkt_type) { |
| case RX_MSDU_START_PKT_TYPE_11A: |
| case RX_MSDU_START_PKT_TYPE_11B: |
| is_cck = (pkt_type == RX_MSDU_START_PKT_TYPE_11B); |
| sband = &ar->mac.sbands[rx_status->band]; |
| rx_status->rate_idx = ath11k_mac_hw_rate_to_idx(sband, rate_mcs, |
| is_cck); |
| break; |
| case RX_MSDU_START_PKT_TYPE_11N: |
| rx_status->encoding = RX_ENC_HT; |
| if (rate_mcs > ATH11K_HT_MCS_MAX) { |
| ath11k_warn(ar->ab, |
| "Received with invalid mcs in HT mode %d\n", |
| rate_mcs); |
| break; |
| } |
| rx_status->rate_idx = rate_mcs + (8 * (nss - 1)); |
| if (sgi) |
| rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI; |
| rx_status->bw = ath11k_mac_bw_to_mac80211_bw(bw); |
| break; |
| case RX_MSDU_START_PKT_TYPE_11AC: |
| rx_status->encoding = RX_ENC_VHT; |
| rx_status->rate_idx = rate_mcs; |
| if (rate_mcs > ATH11K_VHT_MCS_MAX) { |
| ath11k_warn(ar->ab, |
| "Received with invalid mcs in VHT mode %d\n", |
| rate_mcs); |
| break; |
| } |
| rx_status->nss = nss; |
| if (sgi) |
| rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI; |
| rx_status->bw = ath11k_mac_bw_to_mac80211_bw(bw); |
| is_ldpc = ath11k_dp_rx_h_msdu_start_ldpc_support(ar->ab, rx_desc); |
| if (is_ldpc) |
| rx_status->enc_flags |= RX_ENC_FLAG_LDPC; |
| break; |
| case RX_MSDU_START_PKT_TYPE_11AX: |
| rx_status->rate_idx = rate_mcs; |
| if (rate_mcs > ATH11K_HE_MCS_MAX) { |
| ath11k_warn(ar->ab, |
| "Received with invalid mcs in HE mode %d\n", |
| rate_mcs); |
| break; |
| } |
| rx_status->encoding = RX_ENC_HE; |
| rx_status->nss = nss; |
| rx_status->he_gi = ath11k_mac_he_gi_to_nl80211_he_gi(sgi); |
| rx_status->bw = ath11k_mac_bw_to_mac80211_bw(bw); |
| break; |
| } |
| } |
| |
| static void ath11k_dp_rx_h_ppdu(struct ath11k *ar, struct hal_rx_desc *rx_desc, |
| struct ieee80211_rx_status *rx_status) |
| { |
| u8 channel_num; |
| u32 center_freq, meta_data; |
| struct ieee80211_channel *channel; |
| |
| rx_status->freq = 0; |
| rx_status->rate_idx = 0; |
| rx_status->nss = 0; |
| rx_status->encoding = RX_ENC_LEGACY; |
| rx_status->bw = RATE_INFO_BW_20; |
| |
| rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL; |
| |
| meta_data = ath11k_dp_rx_h_msdu_start_freq(ar->ab, rx_desc); |
| channel_num = meta_data; |
| center_freq = meta_data >> 16; |
| |
| if (center_freq >= ATH11K_MIN_6G_FREQ && |
| center_freq <= ATH11K_MAX_6G_FREQ) { |
| rx_status->band = NL80211_BAND_6GHZ; |
| rx_status->freq = center_freq; |
| } else if (channel_num >= 1 && channel_num <= 14) { |
| rx_status->band = NL80211_BAND_2GHZ; |
| } else if (channel_num >= 36 && channel_num <= 173) { |
| rx_status->band = NL80211_BAND_5GHZ; |
| } else { |
| spin_lock_bh(&ar->data_lock); |
| channel = ar->rx_channel; |
| if (channel) { |
| rx_status->band = channel->band; |
| channel_num = |
| ieee80211_frequency_to_channel(channel->center_freq); |
| } |
| spin_unlock_bh(&ar->data_lock); |
| ath11k_dbg_dump(ar->ab, ATH11K_DBG_DATA, NULL, "rx_desc: ", |
| rx_desc, sizeof(struct hal_rx_desc)); |
| } |
| |
| if (rx_status->band != NL80211_BAND_6GHZ) |
| rx_status->freq = ieee80211_channel_to_frequency(channel_num, |
| rx_status->band); |
| |
| ath11k_dp_rx_h_rate(ar, rx_desc, rx_status); |
| } |
| |
| static void ath11k_dp_rx_deliver_msdu(struct ath11k *ar, struct napi_struct *napi, |
| struct sk_buff *msdu, |
| struct ieee80211_rx_status *status) |
| { |
| static const struct ieee80211_radiotap_he known = { |
| .data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN | |
| IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN), |
| .data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN), |
| }; |
| struct ieee80211_rx_status *rx_status; |
| struct ieee80211_radiotap_he *he = NULL; |
| struct ieee80211_sta *pubsta = NULL; |
| struct ath11k_peer *peer; |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| u8 decap = DP_RX_DECAP_TYPE_RAW; |
| bool is_mcbc = rxcb->is_mcbc; |
| bool is_eapol = rxcb->is_eapol; |
| |
| if (status->encoding == RX_ENC_HE && |
| !(status->flag & RX_FLAG_RADIOTAP_HE) && |
| !(status->flag & RX_FLAG_SKIP_MONITOR)) { |
| he = skb_push(msdu, sizeof(known)); |
| memcpy(he, &known, sizeof(known)); |
| status->flag |= RX_FLAG_RADIOTAP_HE; |
| } |
| |
| if (!(status->flag & RX_FLAG_ONLY_MONITOR)) |
| decap = ath11k_dp_rx_h_msdu_start_decap_type(ar->ab, rxcb->rx_desc); |
| |
| spin_lock_bh(&ar->ab->base_lock); |
| peer = ath11k_dp_rx_h_find_peer(ar->ab, msdu); |
| if (peer && peer->sta) |
| pubsta = peer->sta; |
| spin_unlock_bh(&ar->ab->base_lock); |
| |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "rx skb %pK len %u peer %pM %d %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", |
| msdu, |
| msdu->len, |
| peer ? peer->addr : NULL, |
| rxcb->tid, |
| is_mcbc ? "mcast" : "ucast", |
| rxcb->seq_no, |
| (status->encoding == RX_ENC_LEGACY) ? "legacy" : "", |
| (status->encoding == RX_ENC_HT) ? "ht" : "", |
| (status->encoding == RX_ENC_VHT) ? "vht" : "", |
| (status->encoding == RX_ENC_HE) ? "he" : "", |
| (status->bw == RATE_INFO_BW_40) ? "40" : "", |
| (status->bw == RATE_INFO_BW_80) ? "80" : "", |
| (status->bw == RATE_INFO_BW_160) ? "160" : "", |
| status->enc_flags & RX_ENC_FLAG_SHORT_GI ? "sgi " : "", |
| status->rate_idx, |
| status->nss, |
| status->freq, |
| status->band, status->flag, |
| !!(status->flag & RX_FLAG_FAILED_FCS_CRC), |
| !!(status->flag & RX_FLAG_MMIC_ERROR), |
| !!(status->flag & RX_FLAG_AMSDU_MORE)); |
| |
| ath11k_dbg_dump(ar->ab, ATH11K_DBG_DP_RX, NULL, "dp rx msdu: ", |
| msdu->data, msdu->len); |
| |
| rx_status = IEEE80211_SKB_RXCB(msdu); |
| *rx_status = *status; |
| |
| /* TODO: trace rx packet */ |
| |
| /* PN for multicast packets are not validate in HW, |
| * so skip 802.3 rx path |
| * Also, fast_rx expects the STA to be authorized, hence |
| * eapol packets are sent in slow path. |
| */ |
| if (decap == DP_RX_DECAP_TYPE_ETHERNET2_DIX && !is_eapol && |
| !(is_mcbc && rx_status->flag & RX_FLAG_DECRYPTED)) |
| rx_status->flag |= RX_FLAG_8023; |
| |
| ieee80211_rx_napi(ar->hw, pubsta, msdu, napi); |
| } |
| |
| static int ath11k_dp_rx_process_msdu(struct ath11k *ar, |
| struct sk_buff *msdu, |
| struct sk_buff_head *msdu_list, |
| struct ieee80211_rx_status *rx_status) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct hal_rx_desc *rx_desc, *lrx_desc; |
| struct rx_attention *rx_attention; |
| struct ath11k_skb_rxcb *rxcb; |
| struct sk_buff *last_buf; |
| u8 l3_pad_bytes; |
| u8 *hdr_status; |
| u16 msdu_len; |
| int ret; |
| u32 hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| last_buf = ath11k_dp_rx_get_msdu_last_buf(msdu_list, msdu); |
| if (!last_buf) { |
| ath11k_warn(ab, |
| "No valid Rx buffer to access Atten/MSDU_END/MPDU_END tlvs\n"); |
| ret = -EIO; |
| goto free_out; |
| } |
| |
| rx_desc = (struct hal_rx_desc *)msdu->data; |
| if (ath11k_dp_rx_h_attn_msdu_len_err(ab, rx_desc)) { |
| ath11k_warn(ar->ab, "msdu len not valid\n"); |
| ret = -EIO; |
| goto free_out; |
| } |
| |
| lrx_desc = (struct hal_rx_desc *)last_buf->data; |
| rx_attention = ath11k_dp_rx_get_attention(ab, lrx_desc); |
| if (!ath11k_dp_rx_h_attn_msdu_done(rx_attention)) { |
| ath11k_warn(ab, "msdu_done bit in attention is not set\n"); |
| ret = -EIO; |
| goto free_out; |
| } |
| |
| rxcb = ATH11K_SKB_RXCB(msdu); |
| rxcb->rx_desc = rx_desc; |
| msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(ab, rx_desc); |
| l3_pad_bytes = ath11k_dp_rx_h_msdu_end_l3pad(ab, lrx_desc); |
| |
| if (rxcb->is_frag) { |
| skb_pull(msdu, hal_rx_desc_sz); |
| } else if (!rxcb->is_continuation) { |
| if ((msdu_len + hal_rx_desc_sz) > DP_RX_BUFFER_SIZE) { |
| hdr_status = ath11k_dp_rx_h_80211_hdr(ab, rx_desc); |
| ret = -EINVAL; |
| ath11k_warn(ab, "invalid msdu len %u\n", msdu_len); |
| ath11k_dbg_dump(ab, ATH11K_DBG_DATA, NULL, "", hdr_status, |
| sizeof(struct ieee80211_hdr)); |
| ath11k_dbg_dump(ab, ATH11K_DBG_DATA, NULL, "", rx_desc, |
| sizeof(struct hal_rx_desc)); |
| goto free_out; |
| } |
| skb_put(msdu, hal_rx_desc_sz + l3_pad_bytes + msdu_len); |
| skb_pull(msdu, hal_rx_desc_sz + l3_pad_bytes); |
| } else { |
| ret = ath11k_dp_rx_msdu_coalesce(ar, msdu_list, |
| msdu, last_buf, |
| l3_pad_bytes, msdu_len); |
| if (ret) { |
| ath11k_warn(ab, |
| "failed to coalesce msdu rx buffer%d\n", ret); |
| goto free_out; |
| } |
| } |
| |
| ath11k_dp_rx_h_ppdu(ar, rx_desc, rx_status); |
| ath11k_dp_rx_h_mpdu(ar, msdu, rx_desc, rx_status); |
| |
| rx_status->flag |= RX_FLAG_SKIP_MONITOR | RX_FLAG_DUP_VALIDATED; |
| |
| return 0; |
| |
| free_out: |
| return ret; |
| } |
| |
| static void ath11k_dp_rx_process_received_packets(struct ath11k_base *ab, |
| struct napi_struct *napi, |
| struct sk_buff_head *msdu_list, |
| int mac_id) |
| { |
| struct sk_buff *msdu; |
| struct ath11k *ar; |
| struct ieee80211_rx_status rx_status = {0}; |
| int ret; |
| |
| if (skb_queue_empty(msdu_list)) |
| return; |
| |
| if (unlikely(!rcu_access_pointer(ab->pdevs_active[mac_id]))) { |
| __skb_queue_purge(msdu_list); |
| return; |
| } |
| |
| ar = ab->pdevs[mac_id].ar; |
| if (unlikely(test_bit(ATH11K_CAC_RUNNING, &ar->dev_flags))) { |
| __skb_queue_purge(msdu_list); |
| return; |
| } |
| |
| while ((msdu = __skb_dequeue(msdu_list))) { |
| ret = ath11k_dp_rx_process_msdu(ar, msdu, msdu_list, &rx_status); |
| if (unlikely(ret)) { |
| ath11k_dbg(ab, ATH11K_DBG_DATA, |
| "Unable to process msdu %d", ret); |
| dev_kfree_skb_any(msdu); |
| continue; |
| } |
| |
| ath11k_dp_rx_deliver_msdu(ar, napi, msdu, &rx_status); |
| } |
| } |
| |
| int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id, |
| struct napi_struct *napi, int budget) |
| { |
| struct ath11k_dp *dp = &ab->dp; |
| struct dp_rxdma_ring *rx_ring; |
| int num_buffs_reaped[MAX_RADIOS] = {0}; |
| struct sk_buff_head msdu_list[MAX_RADIOS]; |
| struct ath11k_skb_rxcb *rxcb; |
| int total_msdu_reaped = 0; |
| struct hal_srng *srng; |
| struct sk_buff *msdu; |
| bool done = false; |
| int buf_id, mac_id; |
| struct ath11k *ar; |
| struct hal_reo_dest_ring *desc; |
| enum hal_reo_dest_ring_push_reason push_reason; |
| u32 cookie; |
| int i; |
| |
| for (i = 0; i < MAX_RADIOS; i++) |
| __skb_queue_head_init(&msdu_list[i]); |
| |
| srng = &ab->hal.srng_list[dp->reo_dst_ring[ring_id].ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| try_again: |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| while (likely(desc = |
| (struct hal_reo_dest_ring *)ath11k_hal_srng_dst_get_next_entry(ab, |
| srng))) { |
| cookie = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE, |
| desc->buf_addr_info.info1); |
| buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, |
| cookie); |
| mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, cookie); |
| |
| ar = ab->pdevs[mac_id].ar; |
| rx_ring = &ar->dp.rx_refill_buf_ring; |
| spin_lock_bh(&rx_ring->idr_lock); |
| msdu = idr_find(&rx_ring->bufs_idr, buf_id); |
| if (unlikely(!msdu)) { |
| ath11k_warn(ab, "frame rx with invalid buf_id %d\n", |
| buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| continue; |
| } |
| |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| rxcb = ATH11K_SKB_RXCB(msdu); |
| dma_unmap_single(ab->dev, rxcb->paddr, |
| msdu->len + skb_tailroom(msdu), |
| DMA_FROM_DEVICE); |
| |
| num_buffs_reaped[mac_id]++; |
| |
| push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON, |
| desc->info0); |
| if (unlikely(push_reason != |
| HAL_REO_DEST_RING_PUSH_REASON_ROUTING_INSTRUCTION)) { |
| dev_kfree_skb_any(msdu); |
| ab->soc_stats.hal_reo_error[dp->reo_dst_ring[ring_id].ring_id]++; |
| continue; |
| } |
| |
| rxcb->is_first_msdu = !!(desc->rx_msdu_info.info0 & |
| RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU); |
| rxcb->is_last_msdu = !!(desc->rx_msdu_info.info0 & |
| RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU); |
| rxcb->is_continuation = !!(desc->rx_msdu_info.info0 & |
| RX_MSDU_DESC_INFO0_MSDU_CONTINUATION); |
| rxcb->peer_id = FIELD_GET(RX_MPDU_DESC_META_DATA_PEER_ID, |
| desc->rx_mpdu_info.meta_data); |
| rxcb->seq_no = FIELD_GET(RX_MPDU_DESC_INFO0_SEQ_NUM, |
| desc->rx_mpdu_info.info0); |
| rxcb->tid = FIELD_GET(HAL_REO_DEST_RING_INFO0_RX_QUEUE_NUM, |
| desc->info0); |
| |
| rxcb->mac_id = mac_id; |
| __skb_queue_tail(&msdu_list[mac_id], msdu); |
| |
| if (rxcb->is_continuation) { |
| done = false; |
| } else { |
| total_msdu_reaped++; |
| done = true; |
| } |
| |
| if (total_msdu_reaped >= budget) |
| break; |
| } |
| |
| /* Hw might have updated the head pointer after we cached it. |
| * In this case, even though there are entries in the ring we'll |
| * get rx_desc NULL. Give the read another try with updated cached |
| * head pointer so that we can reap complete MPDU in the current |
| * rx processing. |
| */ |
| if (unlikely(!done && ath11k_hal_srng_dst_num_free(ab, srng, true))) { |
| ath11k_hal_srng_access_end(ab, srng); |
| goto try_again; |
| } |
| |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| if (unlikely(!total_msdu_reaped)) |
| goto exit; |
| |
| for (i = 0; i < ab->num_radios; i++) { |
| if (!num_buffs_reaped[i]) |
| continue; |
| |
| ath11k_dp_rx_process_received_packets(ab, napi, &msdu_list[i], i); |
| |
| ar = ab->pdevs[i].ar; |
| rx_ring = &ar->dp.rx_refill_buf_ring; |
| |
| ath11k_dp_rxbufs_replenish(ab, i, rx_ring, num_buffs_reaped[i], |
| ab->hw_params.hal_params->rx_buf_rbm); |
| } |
| exit: |
| return total_msdu_reaped; |
| } |
| |
| static void ath11k_dp_rx_update_peer_stats(struct ath11k_sta *arsta, |
| struct hal_rx_mon_ppdu_info *ppdu_info) |
| { |
| struct ath11k_rx_peer_stats *rx_stats = arsta->rx_stats; |
| u32 num_msdu; |
| int i; |
| |
| if (!rx_stats) |
| return; |
| |
| arsta->rssi_comb = ppdu_info->rssi_comb; |
| ewma_avg_rssi_add(&arsta->avg_rssi, ppdu_info->rssi_comb); |
| |
| num_msdu = ppdu_info->tcp_msdu_count + ppdu_info->tcp_ack_msdu_count + |
| ppdu_info->udp_msdu_count + ppdu_info->other_msdu_count; |
| |
| rx_stats->num_msdu += num_msdu; |
| rx_stats->tcp_msdu_count += ppdu_info->tcp_msdu_count + |
| ppdu_info->tcp_ack_msdu_count; |
| rx_stats->udp_msdu_count += ppdu_info->udp_msdu_count; |
| rx_stats->other_msdu_count += ppdu_info->other_msdu_count; |
| |
| if (ppdu_info->preamble_type == HAL_RX_PREAMBLE_11A || |
| ppdu_info->preamble_type == HAL_RX_PREAMBLE_11B) { |
| ppdu_info->nss = 1; |
| ppdu_info->mcs = HAL_RX_MAX_MCS; |
| ppdu_info->tid = IEEE80211_NUM_TIDS; |
| } |
| |
| if (ppdu_info->nss > 0 && ppdu_info->nss <= HAL_RX_MAX_NSS) |
| rx_stats->nss_count[ppdu_info->nss - 1] += num_msdu; |
| |
| if (ppdu_info->mcs <= HAL_RX_MAX_MCS) |
| rx_stats->mcs_count[ppdu_info->mcs] += num_msdu; |
| |
| if (ppdu_info->gi < HAL_RX_GI_MAX) |
| rx_stats->gi_count[ppdu_info->gi] += num_msdu; |
| |
| if (ppdu_info->bw < HAL_RX_BW_MAX) |
| rx_stats->bw_count[ppdu_info->bw] += num_msdu; |
| |
| if (ppdu_info->ldpc < HAL_RX_SU_MU_CODING_MAX) |
| rx_stats->coding_count[ppdu_info->ldpc] += num_msdu; |
| |
| if (ppdu_info->tid <= IEEE80211_NUM_TIDS) |
| rx_stats->tid_count[ppdu_info->tid] += num_msdu; |
| |
| if (ppdu_info->preamble_type < HAL_RX_PREAMBLE_MAX) |
| rx_stats->pream_cnt[ppdu_info->preamble_type] += num_msdu; |
| |
| if (ppdu_info->reception_type < HAL_RX_RECEPTION_TYPE_MAX) |
| rx_stats->reception_type[ppdu_info->reception_type] += num_msdu; |
| |
| if (ppdu_info->is_stbc) |
| rx_stats->stbc_count += num_msdu; |
| |
| if (ppdu_info->beamformed) |
| rx_stats->beamformed_count += num_msdu; |
| |
| if (ppdu_info->num_mpdu_fcs_ok > 1) |
| rx_stats->ampdu_msdu_count += num_msdu; |
| else |
| rx_stats->non_ampdu_msdu_count += num_msdu; |
| |
| rx_stats->num_mpdu_fcs_ok += ppdu_info->num_mpdu_fcs_ok; |
| rx_stats->num_mpdu_fcs_err += ppdu_info->num_mpdu_fcs_err; |
| rx_stats->dcm_count += ppdu_info->dcm; |
| rx_stats->ru_alloc_cnt[ppdu_info->ru_alloc] += num_msdu; |
| |
| arsta->rssi_comb = ppdu_info->rssi_comb; |
| |
| BUILD_BUG_ON(ARRAY_SIZE(arsta->chain_signal) > |
| ARRAY_SIZE(ppdu_info->rssi_chain_pri20)); |
| |
| for (i = 0; i < ARRAY_SIZE(arsta->chain_signal); i++) |
| arsta->chain_signal[i] = ppdu_info->rssi_chain_pri20[i]; |
| |
| rx_stats->rx_duration += ppdu_info->rx_duration; |
| arsta->rx_duration = rx_stats->rx_duration; |
| } |
| |
| static struct sk_buff *ath11k_dp_rx_alloc_mon_status_buf(struct ath11k_base *ab, |
| struct dp_rxdma_ring *rx_ring, |
| int *buf_id) |
| { |
| struct sk_buff *skb; |
| dma_addr_t paddr; |
| |
| skb = dev_alloc_skb(DP_RX_BUFFER_SIZE + |
| DP_RX_BUFFER_ALIGN_SIZE); |
| |
| if (!skb) |
| goto fail_alloc_skb; |
| |
| if (!IS_ALIGNED((unsigned long)skb->data, |
| DP_RX_BUFFER_ALIGN_SIZE)) { |
| skb_pull(skb, PTR_ALIGN(skb->data, DP_RX_BUFFER_ALIGN_SIZE) - |
| skb->data); |
| } |
| |
| paddr = dma_map_single(ab->dev, skb->data, |
| skb->len + skb_tailroom(skb), |
| DMA_FROM_DEVICE); |
| if (unlikely(dma_mapping_error(ab->dev, paddr))) |
| goto fail_free_skb; |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| *buf_id = idr_alloc(&rx_ring->bufs_idr, skb, 0, |
| rx_ring->bufs_max, GFP_ATOMIC); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| if (*buf_id < 0) |
| goto fail_dma_unmap; |
| |
| ATH11K_SKB_RXCB(skb)->paddr = paddr; |
| return skb; |
| |
| fail_dma_unmap: |
| dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb), |
| DMA_FROM_DEVICE); |
| fail_free_skb: |
| dev_kfree_skb_any(skb); |
| fail_alloc_skb: |
| return NULL; |
| } |
| |
| int ath11k_dp_rx_mon_status_bufs_replenish(struct ath11k_base *ab, int mac_id, |
| struct dp_rxdma_ring *rx_ring, |
| int req_entries, |
| enum hal_rx_buf_return_buf_manager mgr) |
| { |
| struct hal_srng *srng; |
| u32 *desc; |
| struct sk_buff *skb; |
| int num_free; |
| int num_remain; |
| int buf_id; |
| u32 cookie; |
| dma_addr_t paddr; |
| |
| req_entries = min(req_entries, rx_ring->bufs_max); |
| |
| srng = &ab->hal.srng_list[rx_ring->refill_buf_ring.ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| num_free = ath11k_hal_srng_src_num_free(ab, srng, true); |
| |
| req_entries = min(num_free, req_entries); |
| num_remain = req_entries; |
| |
| while (num_remain > 0) { |
| skb = ath11k_dp_rx_alloc_mon_status_buf(ab, rx_ring, |
| &buf_id); |
| if (!skb) |
| break; |
| paddr = ATH11K_SKB_RXCB(skb)->paddr; |
| |
| desc = ath11k_hal_srng_src_get_next_entry(ab, srng); |
| if (!desc) |
| goto fail_desc_get; |
| |
| cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, mac_id) | |
| FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); |
| |
| num_remain--; |
| |
| ath11k_hal_rx_buf_addr_info_set(desc, paddr, cookie, mgr); |
| } |
| |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| return req_entries - num_remain; |
| |
| fail_desc_get: |
| spin_lock_bh(&rx_ring->idr_lock); |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| dma_unmap_single(ab->dev, paddr, skb->len + skb_tailroom(skb), |
| DMA_FROM_DEVICE); |
| dev_kfree_skb_any(skb); |
| ath11k_hal_srng_access_end(ab, srng); |
| spin_unlock_bh(&srng->lock); |
| |
| return req_entries - num_remain; |
| } |
| |
| #define ATH11K_DP_RX_FULL_MON_PPDU_ID_WRAP 32535 |
| |
| static void |
| ath11k_dp_rx_mon_update_status_buf_state(struct ath11k_mon_data *pmon, |
| struct hal_tlv_hdr *tlv) |
| { |
| struct hal_rx_ppdu_start *ppdu_start; |
| u16 ppdu_id_diff, ppdu_id, tlv_len; |
| u8 *ptr; |
| |
| /* PPDU id is part of second tlv, move ptr to second tlv */ |
| tlv_len = FIELD_GET(HAL_TLV_HDR_LEN, tlv->tl); |
| ptr = (u8 *)tlv; |
| ptr += sizeof(*tlv) + tlv_len; |
| tlv = (struct hal_tlv_hdr *)ptr; |
| |
| if (FIELD_GET(HAL_TLV_HDR_TAG, tlv->tl) != HAL_RX_PPDU_START) |
| return; |
| |
| ptr += sizeof(*tlv); |
| ppdu_start = (struct hal_rx_ppdu_start *)ptr; |
| ppdu_id = FIELD_GET(HAL_RX_PPDU_START_INFO0_PPDU_ID, |
| __le32_to_cpu(ppdu_start->info0)); |
| |
| if (pmon->sw_mon_entries.ppdu_id < ppdu_id) { |
| pmon->buf_state = DP_MON_STATUS_LEAD; |
| ppdu_id_diff = ppdu_id - pmon->sw_mon_entries.ppdu_id; |
| if (ppdu_id_diff > ATH11K_DP_RX_FULL_MON_PPDU_ID_WRAP) |
| pmon->buf_state = DP_MON_STATUS_LAG; |
| } else if (pmon->sw_mon_entries.ppdu_id > ppdu_id) { |
| pmon->buf_state = DP_MON_STATUS_LAG; |
| ppdu_id_diff = pmon->sw_mon_entries.ppdu_id - ppdu_id; |
| if (ppdu_id_diff > ATH11K_DP_RX_FULL_MON_PPDU_ID_WRAP) |
| pmon->buf_state = DP_MON_STATUS_LEAD; |
| } |
| } |
| |
| static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id, |
| int *budget, struct sk_buff_head *skb_list) |
| { |
| struct ath11k *ar; |
| const struct ath11k_hw_hal_params *hal_params; |
| struct ath11k_pdev_dp *dp; |
| struct dp_rxdma_ring *rx_ring; |
| struct ath11k_mon_data *pmon; |
| struct hal_srng *srng; |
| void *rx_mon_status_desc; |
| struct sk_buff *skb; |
| struct ath11k_skb_rxcb *rxcb; |
| struct hal_tlv_hdr *tlv; |
| u32 cookie; |
| int buf_id, srng_id; |
| dma_addr_t paddr; |
| u8 rbm; |
| int num_buffs_reaped = 0; |
| |
| ar = ab->pdevs[ath11k_hw_mac_id_to_pdev_id(&ab->hw_params, mac_id)].ar; |
| dp = &ar->dp; |
| pmon = &dp->mon_data; |
| srng_id = ath11k_hw_mac_id_to_srng_id(&ab->hw_params, mac_id); |
| rx_ring = &dp->rx_mon_status_refill_ring[srng_id]; |
| |
| srng = &ab->hal.srng_list[rx_ring->refill_buf_ring.ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| while (*budget) { |
| *budget -= 1; |
| rx_mon_status_desc = |
| ath11k_hal_srng_src_peek(ab, srng); |
| if (!rx_mon_status_desc) { |
| pmon->buf_state = DP_MON_STATUS_REPLINISH; |
| break; |
| } |
| |
| ath11k_hal_rx_buf_addr_info_get(rx_mon_status_desc, &paddr, |
| &cookie, &rbm); |
| if (paddr) { |
| buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, cookie); |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| skb = idr_find(&rx_ring->bufs_idr, buf_id); |
| if (!skb) { |
| ath11k_warn(ab, "rx monitor status with invalid buf_id %d\n", |
| buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| pmon->buf_state = DP_MON_STATUS_REPLINISH; |
| goto move_next; |
| } |
| |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| rxcb = ATH11K_SKB_RXCB(skb); |
| |
| dma_unmap_single(ab->dev, rxcb->paddr, |
| skb->len + skb_tailroom(skb), |
| DMA_FROM_DEVICE); |
| |
| tlv = (struct hal_tlv_hdr *)skb->data; |
| if (FIELD_GET(HAL_TLV_HDR_TAG, tlv->tl) != |
| HAL_RX_STATUS_BUFFER_DONE) { |
| ath11k_warn(ab, "mon status DONE not set %lx\n", |
| FIELD_GET(HAL_TLV_HDR_TAG, |
| tlv->tl)); |
| dev_kfree_skb_any(skb); |
| pmon->buf_state = DP_MON_STATUS_NO_DMA; |
| goto move_next; |
| } |
| |
| if (ab->hw_params.full_monitor_mode) { |
| ath11k_dp_rx_mon_update_status_buf_state(pmon, tlv); |
| if (paddr == pmon->mon_status_paddr) |
| pmon->buf_state = DP_MON_STATUS_MATCH; |
| } |
| __skb_queue_tail(skb_list, skb); |
| } else { |
| pmon->buf_state = DP_MON_STATUS_REPLINISH; |
| } |
| move_next: |
| skb = ath11k_dp_rx_alloc_mon_status_buf(ab, rx_ring, |
| &buf_id); |
| |
| if (!skb) { |
| hal_params = ab->hw_params.hal_params; |
| ath11k_hal_rx_buf_addr_info_set(rx_mon_status_desc, 0, 0, |
| hal_params->rx_buf_rbm); |
| num_buffs_reaped++; |
| break; |
| } |
| rxcb = ATH11K_SKB_RXCB(skb); |
| |
| cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, mac_id) | |
| FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); |
| |
| ath11k_hal_rx_buf_addr_info_set(rx_mon_status_desc, rxcb->paddr, |
| cookie, |
| ab->hw_params.hal_params->rx_buf_rbm); |
| ath11k_hal_srng_src_get_next_entry(ab, srng); |
| num_buffs_reaped++; |
| } |
| ath11k_hal_srng_access_end(ab, srng); |
| spin_unlock_bh(&srng->lock); |
| |
| return num_buffs_reaped; |
| } |
| |
| static void ath11k_dp_rx_frag_timer(struct timer_list *timer) |
| { |
| struct dp_rx_tid *rx_tid = from_timer(rx_tid, timer, frag_timer); |
| |
| spin_lock_bh(&rx_tid->ab->base_lock); |
| if (rx_tid->last_frag_no && |
| rx_tid->rx_frag_bitmap == GENMASK(rx_tid->last_frag_no, 0)) { |
| spin_unlock_bh(&rx_tid->ab->base_lock); |
| return; |
| } |
| ath11k_dp_rx_frags_cleanup(rx_tid, true); |
| spin_unlock_bh(&rx_tid->ab->base_lock); |
| } |
| |
| int ath11k_peer_rx_frag_setup(struct ath11k *ar, const u8 *peer_mac, int vdev_id) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct crypto_shash *tfm; |
| struct ath11k_peer *peer; |
| struct dp_rx_tid *rx_tid; |
| int i; |
| |
| tfm = crypto_alloc_shash("michael_mic", 0, 0); |
| if (IS_ERR(tfm)) |
| return PTR_ERR(tfm); |
| |
| spin_lock_bh(&ab->base_lock); |
| |
| peer = ath11k_peer_find(ab, vdev_id, peer_mac); |
| if (!peer) { |
| ath11k_warn(ab, "failed to find the peer to set up fragment info\n"); |
| spin_unlock_bh(&ab->base_lock); |
| return -ENOENT; |
| } |
| |
| for (i = 0; i <= IEEE80211_NUM_TIDS; i++) { |
| rx_tid = &peer->rx_tid[i]; |
| rx_tid->ab = ab; |
| timer_setup(&rx_tid->frag_timer, ath11k_dp_rx_frag_timer, 0); |
| skb_queue_head_init(&rx_tid->rx_frags); |
| } |
| |
| peer->tfm_mmic = tfm; |
| spin_unlock_bh(&ab->base_lock); |
| |
| return 0; |
| } |
| |
| static int ath11k_dp_rx_h_michael_mic(struct crypto_shash *tfm, u8 *key, |
| struct ieee80211_hdr *hdr, u8 *data, |
| size_t data_len, u8 *mic) |
| { |
| SHASH_DESC_ON_STACK(desc, tfm); |
| u8 mic_hdr[16] = {0}; |
| u8 tid = 0; |
| int ret; |
| |
| if (!tfm) |
| return -EINVAL; |
| |
| desc->tfm = tfm; |
| |
| ret = crypto_shash_setkey(tfm, key, 8); |
| if (ret) |
| goto out; |
| |
| ret = crypto_shash_init(desc); |
| if (ret) |
| goto out; |
| |
| /* TKIP MIC header */ |
| memcpy(mic_hdr, ieee80211_get_DA(hdr), ETH_ALEN); |
| memcpy(mic_hdr + ETH_ALEN, ieee80211_get_SA(hdr), ETH_ALEN); |
| if (ieee80211_is_data_qos(hdr->frame_control)) |
| tid = ieee80211_get_tid(hdr); |
| mic_hdr[12] = tid; |
| |
| ret = crypto_shash_update(desc, mic_hdr, 16); |
| if (ret) |
| goto out; |
| ret = crypto_shash_update(desc, data, data_len); |
| if (ret) |
| goto out; |
| ret = crypto_shash_final(desc, mic); |
| out: |
| shash_desc_zero(desc); |
| return ret; |
| } |
| |
| static int ath11k_dp_rx_h_verify_tkip_mic(struct ath11k *ar, struct ath11k_peer *peer, |
| struct sk_buff *msdu) |
| { |
| struct hal_rx_desc *rx_desc = (struct hal_rx_desc *)msdu->data; |
| struct ieee80211_rx_status *rxs = IEEE80211_SKB_RXCB(msdu); |
| struct ieee80211_key_conf *key_conf; |
| struct ieee80211_hdr *hdr; |
| u8 mic[IEEE80211_CCMP_MIC_LEN]; |
| int head_len, tail_len, ret; |
| size_t data_len; |
| u32 hdr_len, hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| u8 *key, *data; |
| u8 key_idx; |
| |
| if (ath11k_dp_rx_h_mpdu_start_enctype(ar->ab, rx_desc) != |
| HAL_ENCRYPT_TYPE_TKIP_MIC) |
| return 0; |
| |
| hdr = (struct ieee80211_hdr *)(msdu->data + hal_rx_desc_sz); |
| hdr_len = ieee80211_hdrlen(hdr->frame_control); |
| head_len = hdr_len + hal_rx_desc_sz + IEEE80211_TKIP_IV_LEN; |
| tail_len = IEEE80211_CCMP_MIC_LEN + IEEE80211_TKIP_ICV_LEN + FCS_LEN; |
| |
| if (!is_multicast_ether_addr(hdr->addr1)) |
| key_idx = peer->ucast_keyidx; |
| else |
| key_idx = peer->mcast_keyidx; |
| |
| key_conf = peer->keys[key_idx]; |
| |
| data = msdu->data + head_len; |
| data_len = msdu->len - head_len - tail_len; |
| key = &key_conf->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]; |
| |
| ret = ath11k_dp_rx_h_michael_mic(peer->tfm_mmic, key, hdr, data, data_len, mic); |
| if (ret || memcmp(mic, data + data_len, IEEE80211_CCMP_MIC_LEN)) |
| goto mic_fail; |
| |
| return 0; |
| |
| mic_fail: |
| (ATH11K_SKB_RXCB(msdu))->is_first_msdu = true; |
| (ATH11K_SKB_RXCB(msdu))->is_last_msdu = true; |
| |
| rxs->flag |= RX_FLAG_MMIC_ERROR | RX_FLAG_MMIC_STRIPPED | |
| RX_FLAG_IV_STRIPPED | RX_FLAG_DECRYPTED; |
| skb_pull(msdu, hal_rx_desc_sz); |
| |
| ath11k_dp_rx_h_ppdu(ar, rx_desc, rxs); |
| ath11k_dp_rx_h_undecap(ar, msdu, rx_desc, |
| HAL_ENCRYPT_TYPE_TKIP_MIC, rxs, true); |
| ieee80211_rx(ar->hw, msdu); |
| return -EINVAL; |
| } |
| |
| static void ath11k_dp_rx_h_undecap_frag(struct ath11k *ar, struct sk_buff *msdu, |
| enum hal_encrypt_type enctype, u32 flags) |
| { |
| struct ieee80211_hdr *hdr; |
| size_t hdr_len; |
| size_t crypto_len; |
| u32 hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| if (!flags) |
| return; |
| |
| hdr = (struct ieee80211_hdr *)(msdu->data + hal_rx_desc_sz); |
| |
| if (flags & RX_FLAG_MIC_STRIPPED) |
| skb_trim(msdu, msdu->len - |
| ath11k_dp_rx_crypto_mic_len(ar, enctype)); |
| |
| if (flags & RX_FLAG_ICV_STRIPPED) |
| skb_trim(msdu, msdu->len - |
| ath11k_dp_rx_crypto_icv_len(ar, enctype)); |
| |
| if (flags & RX_FLAG_IV_STRIPPED) { |
| hdr_len = ieee80211_hdrlen(hdr->frame_control); |
| crypto_len = ath11k_dp_rx_crypto_param_len(ar, enctype); |
| |
| memmove((void *)msdu->data + hal_rx_desc_sz + crypto_len, |
| (void *)msdu->data + hal_rx_desc_sz, hdr_len); |
| skb_pull(msdu, crypto_len); |
| } |
| } |
| |
| static int ath11k_dp_rx_h_defrag(struct ath11k *ar, |
| struct ath11k_peer *peer, |
| struct dp_rx_tid *rx_tid, |
| struct sk_buff **defrag_skb) |
| { |
| struct hal_rx_desc *rx_desc; |
| struct sk_buff *skb, *first_frag, *last_frag; |
| struct ieee80211_hdr *hdr; |
| struct rx_attention *rx_attention; |
| enum hal_encrypt_type enctype; |
| bool is_decrypted = false; |
| int msdu_len = 0; |
| int extra_space; |
| u32 flags, hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| first_frag = skb_peek(&rx_tid->rx_frags); |
| last_frag = skb_peek_tail(&rx_tid->rx_frags); |
| |
| skb_queue_walk(&rx_tid->rx_frags, skb) { |
| flags = 0; |
| rx_desc = (struct hal_rx_desc *)skb->data; |
| hdr = (struct ieee80211_hdr *)(skb->data + hal_rx_desc_sz); |
| |
| enctype = ath11k_dp_rx_h_mpdu_start_enctype(ar->ab, rx_desc); |
| if (enctype != HAL_ENCRYPT_TYPE_OPEN) { |
| rx_attention = ath11k_dp_rx_get_attention(ar->ab, rx_desc); |
| is_decrypted = ath11k_dp_rx_h_attn_is_decrypted(rx_attention); |
| } |
| |
| if (is_decrypted) { |
| if (skb != first_frag) |
| flags |= RX_FLAG_IV_STRIPPED; |
| if (skb != last_frag) |
| flags |= RX_FLAG_ICV_STRIPPED | |
| RX_FLAG_MIC_STRIPPED; |
| } |
| |
| /* RX fragments are always raw packets */ |
| if (skb != last_frag) |
| skb_trim(skb, skb->len - FCS_LEN); |
| ath11k_dp_rx_h_undecap_frag(ar, skb, enctype, flags); |
| |
| if (skb != first_frag) |
| skb_pull(skb, hal_rx_desc_sz + |
| ieee80211_hdrlen(hdr->frame_control)); |
| msdu_len += skb->len; |
| } |
| |
| extra_space = msdu_len - (DP_RX_BUFFER_SIZE + skb_tailroom(first_frag)); |
| if (extra_space > 0 && |
| (pskb_expand_head(first_frag, 0, extra_space, GFP_ATOMIC) < 0)) |
| return -ENOMEM; |
| |
| __skb_unlink(first_frag, &rx_tid->rx_frags); |
| while ((skb = __skb_dequeue(&rx_tid->rx_frags))) { |
| skb_put_data(first_frag, skb->data, skb->len); |
| dev_kfree_skb_any(skb); |
| } |
| |
| hdr = (struct ieee80211_hdr *)(first_frag->data + hal_rx_desc_sz); |
| hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_MOREFRAGS); |
| ATH11K_SKB_RXCB(first_frag)->is_frag = 1; |
| |
| if (ath11k_dp_rx_h_verify_tkip_mic(ar, peer, first_frag)) |
| first_frag = NULL; |
| |
| *defrag_skb = first_frag; |
| return 0; |
| } |
| |
| static int ath11k_dp_rx_h_defrag_reo_reinject(struct ath11k *ar, struct dp_rx_tid *rx_tid, |
| struct sk_buff *defrag_skb) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct dp_rxdma_ring *rx_refill_ring = &dp->rx_refill_buf_ring; |
| struct hal_rx_desc *rx_desc = (struct hal_rx_desc *)defrag_skb->data; |
| struct hal_reo_entrance_ring *reo_ent_ring; |
| struct hal_reo_dest_ring *reo_dest_ring; |
| struct dp_link_desc_bank *link_desc_banks; |
| struct hal_rx_msdu_link *msdu_link; |
| struct hal_rx_msdu_details *msdu0; |
| struct hal_srng *srng; |
| dma_addr_t paddr; |
| u32 desc_bank, msdu_info, mpdu_info; |
| u32 dst_idx, cookie, hal_rx_desc_sz; |
| int ret, buf_id; |
| |
| hal_rx_desc_sz = ab->hw_params.hal_desc_sz; |
| link_desc_banks = ab->dp.link_desc_banks; |
| reo_dest_ring = rx_tid->dst_ring_desc; |
| |
| ath11k_hal_rx_reo_ent_paddr_get(ab, reo_dest_ring, &paddr, &desc_bank); |
| msdu_link = (struct hal_rx_msdu_link *)(link_desc_banks[desc_bank].vaddr + |
| (paddr - link_desc_banks[desc_bank].paddr)); |
| msdu0 = &msdu_link->msdu_link[0]; |
| dst_idx = FIELD_GET(RX_MSDU_DESC_INFO0_REO_DEST_IND, msdu0->rx_msdu_info.info0); |
| memset(msdu0, 0, sizeof(*msdu0)); |
| |
| msdu_info = FIELD_PREP(RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU, 1) | |
| FIELD_PREP(RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU, 1) | |
| FIELD_PREP(RX_MSDU_DESC_INFO0_MSDU_CONTINUATION, 0) | |
| FIELD_PREP(RX_MSDU_DESC_INFO0_MSDU_LENGTH, |
| defrag_skb->len - hal_rx_desc_sz) | |
| FIELD_PREP(RX_MSDU_DESC_INFO0_REO_DEST_IND, dst_idx) | |
| FIELD_PREP(RX_MSDU_DESC_INFO0_VALID_SA, 1) | |
| FIELD_PREP(RX_MSDU_DESC_INFO0_VALID_DA, 1); |
| msdu0->rx_msdu_info.info0 = msdu_info; |
| |
| /* change msdu len in hal rx desc */ |
| ath11k_dp_rxdesc_set_msdu_len(ab, rx_desc, defrag_skb->len - hal_rx_desc_sz); |
| |
| paddr = dma_map_single(ab->dev, defrag_skb->data, |
| defrag_skb->len + skb_tailroom(defrag_skb), |
| DMA_TO_DEVICE); |
| if (dma_mapping_error(ab->dev, paddr)) |
| return -ENOMEM; |
| |
| spin_lock_bh(&rx_refill_ring->idr_lock); |
| buf_id = idr_alloc(&rx_refill_ring->bufs_idr, defrag_skb, 0, |
| rx_refill_ring->bufs_max * 3, GFP_ATOMIC); |
| spin_unlock_bh(&rx_refill_ring->idr_lock); |
| if (buf_id < 0) { |
| ret = -ENOMEM; |
| goto err_unmap_dma; |
| } |
| |
| ATH11K_SKB_RXCB(defrag_skb)->paddr = paddr; |
| cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, dp->mac_id) | |
| FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id); |
| |
| ath11k_hal_rx_buf_addr_info_set(msdu0, paddr, cookie, |
| ab->hw_params.hal_params->rx_buf_rbm); |
| |
| /* Fill mpdu details into reo entrace ring */ |
| srng = &ab->hal.srng_list[ab->dp.reo_reinject_ring.ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| reo_ent_ring = (struct hal_reo_entrance_ring *) |
| ath11k_hal_srng_src_get_next_entry(ab, srng); |
| if (!reo_ent_ring) { |
| ath11k_hal_srng_access_end(ab, srng); |
| spin_unlock_bh(&srng->lock); |
| ret = -ENOSPC; |
| goto err_free_idr; |
| } |
| memset(reo_ent_ring, 0, sizeof(*reo_ent_ring)); |
| |
| ath11k_hal_rx_reo_ent_paddr_get(ab, reo_dest_ring, &paddr, &desc_bank); |
| ath11k_hal_rx_buf_addr_info_set(reo_ent_ring, paddr, desc_bank, |
| HAL_RX_BUF_RBM_WBM_IDLE_DESC_LIST); |
| |
| mpdu_info = FIELD_PREP(RX_MPDU_DESC_INFO0_MSDU_COUNT, 1) | |
| FIELD_PREP(RX_MPDU_DESC_INFO0_SEQ_NUM, rx_tid->cur_sn) | |
| FIELD_PREP(RX_MPDU_DESC_INFO0_FRAG_FLAG, 0) | |
| FIELD_PREP(RX_MPDU_DESC_INFO0_VALID_SA, 1) | |
| FIELD_PREP(RX_MPDU_DESC_INFO0_VALID_DA, 1) | |
| FIELD_PREP(RX_MPDU_DESC_INFO0_RAW_MPDU, 1) | |
| FIELD_PREP(RX_MPDU_DESC_INFO0_VALID_PN, 1); |
| |
| reo_ent_ring->rx_mpdu_info.info0 = mpdu_info; |
| reo_ent_ring->rx_mpdu_info.meta_data = reo_dest_ring->rx_mpdu_info.meta_data; |
| reo_ent_ring->queue_addr_lo = reo_dest_ring->queue_addr_lo; |
| reo_ent_ring->info0 = FIELD_PREP(HAL_REO_ENTR_RING_INFO0_QUEUE_ADDR_HI, |
| FIELD_GET(HAL_REO_DEST_RING_INFO0_QUEUE_ADDR_HI, |
| reo_dest_ring->info0)) | |
| FIELD_PREP(HAL_REO_ENTR_RING_INFO0_DEST_IND, dst_idx); |
| ath11k_hal_srng_access_end(ab, srng); |
| spin_unlock_bh(&srng->lock); |
| |
| return 0; |
| |
| err_free_idr: |
| spin_lock_bh(&rx_refill_ring->idr_lock); |
| idr_remove(&rx_refill_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_refill_ring->idr_lock); |
| err_unmap_dma: |
| dma_unmap_single(ab->dev, paddr, defrag_skb->len + skb_tailroom(defrag_skb), |
| DMA_TO_DEVICE); |
| return ret; |
| } |
| |
| static int ath11k_dp_rx_h_cmp_frags(struct ath11k *ar, |
| struct sk_buff *a, struct sk_buff *b) |
| { |
| int frag1, frag2; |
| |
| frag1 = ath11k_dp_rx_h_mpdu_start_frag_no(ar->ab, a); |
| frag2 = ath11k_dp_rx_h_mpdu_start_frag_no(ar->ab, b); |
| |
| return frag1 - frag2; |
| } |
| |
| static void ath11k_dp_rx_h_sort_frags(struct ath11k *ar, |
| struct sk_buff_head *frag_list, |
| struct sk_buff *cur_frag) |
| { |
| struct sk_buff *skb; |
| int cmp; |
| |
| skb_queue_walk(frag_list, skb) { |
| cmp = ath11k_dp_rx_h_cmp_frags(ar, skb, cur_frag); |
| if (cmp < 0) |
| continue; |
| __skb_queue_before(frag_list, skb, cur_frag); |
| return; |
| } |
| __skb_queue_tail(frag_list, cur_frag); |
| } |
| |
| static u64 ath11k_dp_rx_h_get_pn(struct ath11k *ar, struct sk_buff *skb) |
| { |
| struct ieee80211_hdr *hdr; |
| u64 pn = 0; |
| u8 *ehdr; |
| u32 hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| hdr = (struct ieee80211_hdr *)(skb->data + hal_rx_desc_sz); |
| ehdr = skb->data + hal_rx_desc_sz + ieee80211_hdrlen(hdr->frame_control); |
| |
| pn = ehdr[0]; |
| pn |= (u64)ehdr[1] << 8; |
| pn |= (u64)ehdr[4] << 16; |
| pn |= (u64)ehdr[5] << 24; |
| pn |= (u64)ehdr[6] << 32; |
| pn |= (u64)ehdr[7] << 40; |
| |
| return pn; |
| } |
| |
| static bool |
| ath11k_dp_rx_h_defrag_validate_incr_pn(struct ath11k *ar, struct dp_rx_tid *rx_tid) |
| { |
| enum hal_encrypt_type encrypt_type; |
| struct sk_buff *first_frag, *skb; |
| struct hal_rx_desc *desc; |
| u64 last_pn; |
| u64 cur_pn; |
| |
| first_frag = skb_peek(&rx_tid->rx_frags); |
| desc = (struct hal_rx_desc *)first_frag->data; |
| |
| encrypt_type = ath11k_dp_rx_h_mpdu_start_enctype(ar->ab, desc); |
| if (encrypt_type != HAL_ENCRYPT_TYPE_CCMP_128 && |
| encrypt_type != HAL_ENCRYPT_TYPE_CCMP_256 && |
| encrypt_type != HAL_ENCRYPT_TYPE_GCMP_128 && |
| encrypt_type != HAL_ENCRYPT_TYPE_AES_GCMP_256) |
| return true; |
| |
| last_pn = ath11k_dp_rx_h_get_pn(ar, first_frag); |
| skb_queue_walk(&rx_tid->rx_frags, skb) { |
| if (skb == first_frag) |
| continue; |
| |
| cur_pn = ath11k_dp_rx_h_get_pn(ar, skb); |
| if (cur_pn != last_pn + 1) |
| return false; |
| last_pn = cur_pn; |
| } |
| return true; |
| } |
| |
| static int ath11k_dp_rx_frag_h_mpdu(struct ath11k *ar, |
| struct sk_buff *msdu, |
| u32 *ring_desc) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct hal_rx_desc *rx_desc; |
| struct ath11k_peer *peer; |
| struct dp_rx_tid *rx_tid; |
| struct sk_buff *defrag_skb = NULL; |
| u32 peer_id; |
| u16 seqno, frag_no; |
| u8 tid; |
| int ret = 0; |
| bool more_frags; |
| bool is_mcbc; |
| |
| rx_desc = (struct hal_rx_desc *)msdu->data; |
| peer_id = ath11k_dp_rx_h_mpdu_start_peer_id(ar->ab, rx_desc); |
| tid = ath11k_dp_rx_h_mpdu_start_tid(ar->ab, rx_desc); |
| seqno = ath11k_dp_rx_h_mpdu_start_seq_no(ar->ab, rx_desc); |
| frag_no = ath11k_dp_rx_h_mpdu_start_frag_no(ar->ab, msdu); |
| more_frags = ath11k_dp_rx_h_mpdu_start_more_frags(ar->ab, msdu); |
| is_mcbc = ath11k_dp_rx_h_attn_is_mcbc(ar->ab, rx_desc); |
| |
| /* Multicast/Broadcast fragments are not expected */ |
| if (is_mcbc) |
| return -EINVAL; |
| |
| if (!ath11k_dp_rx_h_mpdu_start_seq_ctrl_valid(ar->ab, rx_desc) || |
| !ath11k_dp_rx_h_mpdu_start_fc_valid(ar->ab, rx_desc) || |
| tid > IEEE80211_NUM_TIDS) |
| return -EINVAL; |
| |
| /* received unfragmented packet in reo |
| * exception ring, this shouldn't happen |
| * as these packets typically come from |
| * reo2sw srngs. |
| */ |
| if (WARN_ON_ONCE(!frag_no && !more_frags)) |
| return -EINVAL; |
| |
| spin_lock_bh(&ab->base_lock); |
| peer = ath11k_peer_find_by_id(ab, peer_id); |
| if (!peer) { |
| ath11k_warn(ab, "failed to find the peer to de-fragment received fragment peer_id %d\n", |
| peer_id); |
| ret = -ENOENT; |
| goto out_unlock; |
| } |
| rx_tid = &peer->rx_tid[tid]; |
| |
| if ((!skb_queue_empty(&rx_tid->rx_frags) && seqno != rx_tid->cur_sn) || |
| skb_queue_empty(&rx_tid->rx_frags)) { |
| /* Flush stored fragments and start a new sequence */ |
| ath11k_dp_rx_frags_cleanup(rx_tid, true); |
| rx_tid->cur_sn = seqno; |
| } |
| |
| if (rx_tid->rx_frag_bitmap & BIT(frag_no)) { |
| /* Fragment already present */ |
| ret = -EINVAL; |
| goto out_unlock; |
| } |
| |
| if (frag_no > __fls(rx_tid->rx_frag_bitmap)) |
| __skb_queue_tail(&rx_tid->rx_frags, msdu); |
| else |
| ath11k_dp_rx_h_sort_frags(ar, &rx_tid->rx_frags, msdu); |
| |
| rx_tid->rx_frag_bitmap |= BIT(frag_no); |
| if (!more_frags) |
| rx_tid->last_frag_no = frag_no; |
| |
| if (frag_no == 0) { |
| rx_tid->dst_ring_desc = kmemdup(ring_desc, |
| sizeof(*rx_tid->dst_ring_desc), |
| GFP_ATOMIC); |
| if (!rx_tid->dst_ring_desc) { |
| ret = -ENOMEM; |
| goto out_unlock; |
| } |
| } else { |
| ath11k_dp_rx_link_desc_return(ab, ring_desc, |
| HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); |
| } |
| |
| if (!rx_tid->last_frag_no || |
| rx_tid->rx_frag_bitmap != GENMASK(rx_tid->last_frag_no, 0)) { |
| mod_timer(&rx_tid->frag_timer, jiffies + |
| ATH11K_DP_RX_FRAGMENT_TIMEOUT_MS); |
| goto out_unlock; |
| } |
| |
| spin_unlock_bh(&ab->base_lock); |
| del_timer_sync(&rx_tid->frag_timer); |
| spin_lock_bh(&ab->base_lock); |
| |
| peer = ath11k_peer_find_by_id(ab, peer_id); |
| if (!peer) |
| goto err_frags_cleanup; |
| |
| if (!ath11k_dp_rx_h_defrag_validate_incr_pn(ar, rx_tid)) |
| goto err_frags_cleanup; |
| |
| if (ath11k_dp_rx_h_defrag(ar, peer, rx_tid, &defrag_skb)) |
| goto err_frags_cleanup; |
| |
| if (!defrag_skb) |
| goto err_frags_cleanup; |
| |
| if (ath11k_dp_rx_h_defrag_reo_reinject(ar, rx_tid, defrag_skb)) |
| goto err_frags_cleanup; |
| |
| ath11k_dp_rx_frags_cleanup(rx_tid, false); |
| goto out_unlock; |
| |
| err_frags_cleanup: |
| dev_kfree_skb_any(defrag_skb); |
| ath11k_dp_rx_frags_cleanup(rx_tid, true); |
| out_unlock: |
| spin_unlock_bh(&ab->base_lock); |
| return ret; |
| } |
| |
| static int |
| ath11k_dp_process_rx_err_buf(struct ath11k *ar, u32 *ring_desc, int buf_id, bool drop) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; |
| struct sk_buff *msdu; |
| struct ath11k_skb_rxcb *rxcb; |
| struct hal_rx_desc *rx_desc; |
| u8 *hdr_status; |
| u16 msdu_len; |
| u32 hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| msdu = idr_find(&rx_ring->bufs_idr, buf_id); |
| if (!msdu) { |
| ath11k_warn(ar->ab, "rx err buf with invalid buf_id %d\n", |
| buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| return -EINVAL; |
| } |
| |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| rxcb = ATH11K_SKB_RXCB(msdu); |
| dma_unmap_single(ar->ab->dev, rxcb->paddr, |
| msdu->len + skb_tailroom(msdu), |
| DMA_FROM_DEVICE); |
| |
| if (drop) { |
| dev_kfree_skb_any(msdu); |
| return 0; |
| } |
| |
| rcu_read_lock(); |
| if (!rcu_dereference(ar->ab->pdevs_active[ar->pdev_idx])) { |
| dev_kfree_skb_any(msdu); |
| goto exit; |
| } |
| |
| if (test_bit(ATH11K_CAC_RUNNING, &ar->dev_flags)) { |
| dev_kfree_skb_any(msdu); |
| goto exit; |
| } |
| |
| rx_desc = (struct hal_rx_desc *)msdu->data; |
| msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(ar->ab, rx_desc); |
| if ((msdu_len + hal_rx_desc_sz) > DP_RX_BUFFER_SIZE) { |
| hdr_status = ath11k_dp_rx_h_80211_hdr(ar->ab, rx_desc); |
| ath11k_warn(ar->ab, "invalid msdu leng %u", msdu_len); |
| ath11k_dbg_dump(ar->ab, ATH11K_DBG_DATA, NULL, "", hdr_status, |
| sizeof(struct ieee80211_hdr)); |
| ath11k_dbg_dump(ar->ab, ATH11K_DBG_DATA, NULL, "", rx_desc, |
| sizeof(struct hal_rx_desc)); |
| dev_kfree_skb_any(msdu); |
| goto exit; |
| } |
| |
| skb_put(msdu, hal_rx_desc_sz + msdu_len); |
| |
| if (ath11k_dp_rx_frag_h_mpdu(ar, msdu, ring_desc)) { |
| dev_kfree_skb_any(msdu); |
| ath11k_dp_rx_link_desc_return(ar->ab, ring_desc, |
| HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); |
| } |
| exit: |
| rcu_read_unlock(); |
| return 0; |
| } |
| |
| int ath11k_dp_process_rx_err(struct ath11k_base *ab, struct napi_struct *napi, |
| int budget) |
| { |
| u32 msdu_cookies[HAL_NUM_RX_MSDUS_PER_LINK_DESC]; |
| struct dp_link_desc_bank *link_desc_banks; |
| enum hal_rx_buf_return_buf_manager rbm; |
| int tot_n_bufs_reaped, quota, ret, i; |
| int n_bufs_reaped[MAX_RADIOS] = {0}; |
| struct dp_rxdma_ring *rx_ring; |
| struct dp_srng *reo_except; |
| u32 desc_bank, num_msdus; |
| struct hal_srng *srng; |
| struct ath11k_dp *dp; |
| void *link_desc_va; |
| int buf_id, mac_id; |
| struct ath11k *ar; |
| dma_addr_t paddr; |
| u32 *desc; |
| bool is_frag; |
| u8 drop = 0; |
| |
| tot_n_bufs_reaped = 0; |
| quota = budget; |
| |
| dp = &ab->dp; |
| reo_except = &dp->reo_except_ring; |
| link_desc_banks = dp->link_desc_banks; |
| |
| srng = &ab->hal.srng_list[reo_except->ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| while (budget && |
| (desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { |
| struct hal_reo_dest_ring *reo_desc = (struct hal_reo_dest_ring *)desc; |
| |
| ab->soc_stats.err_ring_pkts++; |
| ret = ath11k_hal_desc_reo_parse_err(ab, desc, &paddr, |
| &desc_bank); |
| if (ret) { |
| ath11k_warn(ab, "failed to parse error reo desc %d\n", |
| ret); |
| continue; |
| } |
| link_desc_va = link_desc_banks[desc_bank].vaddr + |
| (paddr - link_desc_banks[desc_bank].paddr); |
| ath11k_hal_rx_msdu_link_info_get(link_desc_va, &num_msdus, msdu_cookies, |
| &rbm); |
| if (rbm != HAL_RX_BUF_RBM_WBM_IDLE_DESC_LIST && |
| rbm != HAL_RX_BUF_RBM_SW3_BM) { |
| ab->soc_stats.invalid_rbm++; |
| ath11k_warn(ab, "invalid return buffer manager %d\n", rbm); |
| ath11k_dp_rx_link_desc_return(ab, desc, |
| HAL_WBM_REL_BM_ACT_REL_MSDU); |
| continue; |
| } |
| |
| is_frag = !!(reo_desc->rx_mpdu_info.info0 & RX_MPDU_DESC_INFO0_FRAG_FLAG); |
| |
| /* Process only rx fragments with one msdu per link desc below, and drop |
| * msdu's indicated due to error reasons. |
| */ |
| if (!is_frag || num_msdus > 1) { |
| drop = 1; |
| /* Return the link desc back to wbm idle list */ |
| ath11k_dp_rx_link_desc_return(ab, desc, |
| HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); |
| } |
| |
| for (i = 0; i < num_msdus; i++) { |
| buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, |
| msdu_cookies[i]); |
| |
| mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, |
| msdu_cookies[i]); |
| |
| ar = ab->pdevs[mac_id].ar; |
| |
| if (!ath11k_dp_process_rx_err_buf(ar, desc, buf_id, drop)) { |
| n_bufs_reaped[mac_id]++; |
| tot_n_bufs_reaped++; |
| } |
| } |
| |
| if (tot_n_bufs_reaped >= quota) { |
| tot_n_bufs_reaped = quota; |
| goto exit; |
| } |
| |
| budget = quota - tot_n_bufs_reaped; |
| } |
| |
| exit: |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| for (i = 0; i < ab->num_radios; i++) { |
| if (!n_bufs_reaped[i]) |
| continue; |
| |
| ar = ab->pdevs[i].ar; |
| rx_ring = &ar->dp.rx_refill_buf_ring; |
| |
| ath11k_dp_rxbufs_replenish(ab, i, rx_ring, n_bufs_reaped[i], |
| ab->hw_params.hal_params->rx_buf_rbm); |
| } |
| |
| return tot_n_bufs_reaped; |
| } |
| |
| static void ath11k_dp_rx_null_q_desc_sg_drop(struct ath11k *ar, |
| int msdu_len, |
| struct sk_buff_head *msdu_list) |
| { |
| struct sk_buff *skb, *tmp; |
| struct ath11k_skb_rxcb *rxcb; |
| int n_buffs; |
| |
| n_buffs = DIV_ROUND_UP(msdu_len, |
| (DP_RX_BUFFER_SIZE - ar->ab->hw_params.hal_desc_sz)); |
| |
| skb_queue_walk_safe(msdu_list, skb, tmp) { |
| rxcb = ATH11K_SKB_RXCB(skb); |
| if (rxcb->err_rel_src == HAL_WBM_REL_SRC_MODULE_REO && |
| rxcb->err_code == HAL_REO_DEST_RING_ERROR_CODE_DESC_ADDR_ZERO) { |
| if (!n_buffs) |
| break; |
| __skb_unlink(skb, msdu_list); |
| dev_kfree_skb_any(skb); |
| n_buffs--; |
| } |
| } |
| } |
| |
| static int ath11k_dp_rx_h_null_q_desc(struct ath11k *ar, struct sk_buff *msdu, |
| struct ieee80211_rx_status *status, |
| struct sk_buff_head *msdu_list) |
| { |
| u16 msdu_len; |
| struct hal_rx_desc *desc = (struct hal_rx_desc *)msdu->data; |
| struct rx_attention *rx_attention; |
| u8 l3pad_bytes; |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| u32 hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(ar->ab, desc); |
| |
| if (!rxcb->is_frag && ((msdu_len + hal_rx_desc_sz) > DP_RX_BUFFER_SIZE)) { |
| /* First buffer will be freed by the caller, so deduct it's length */ |
| msdu_len = msdu_len - (DP_RX_BUFFER_SIZE - hal_rx_desc_sz); |
| ath11k_dp_rx_null_q_desc_sg_drop(ar, msdu_len, msdu_list); |
| return -EINVAL; |
| } |
| |
| rx_attention = ath11k_dp_rx_get_attention(ar->ab, desc); |
| if (!ath11k_dp_rx_h_attn_msdu_done(rx_attention)) { |
| ath11k_warn(ar->ab, |
| "msdu_done bit not set in null_q_des processing\n"); |
| __skb_queue_purge(msdu_list); |
| return -EIO; |
| } |
| |
| /* Handle NULL queue descriptor violations arising out a missing |
| * REO queue for a given peer or a given TID. This typically |
| * may happen if a packet is received on a QOS enabled TID before the |
| * ADDBA negotiation for that TID, when the TID queue is setup. Or |
| * it may also happen for MC/BC frames if they are not routed to the |
| * non-QOS TID queue, in the absence of any other default TID queue. |
| * This error can show up both in a REO destination or WBM release ring. |
| */ |
| |
| rxcb->is_first_msdu = ath11k_dp_rx_h_msdu_end_first_msdu(ar->ab, desc); |
| rxcb->is_last_msdu = ath11k_dp_rx_h_msdu_end_last_msdu(ar->ab, desc); |
| |
| if (rxcb->is_frag) { |
| skb_pull(msdu, hal_rx_desc_sz); |
| } else { |
| l3pad_bytes = ath11k_dp_rx_h_msdu_end_l3pad(ar->ab, desc); |
| |
| if ((hal_rx_desc_sz + l3pad_bytes + msdu_len) > DP_RX_BUFFER_SIZE) |
| return -EINVAL; |
| |
| skb_put(msdu, hal_rx_desc_sz + l3pad_bytes + msdu_len); |
| skb_pull(msdu, hal_rx_desc_sz + l3pad_bytes); |
| } |
| ath11k_dp_rx_h_ppdu(ar, desc, status); |
| |
| ath11k_dp_rx_h_mpdu(ar, msdu, desc, status); |
| |
| rxcb->tid = ath11k_dp_rx_h_mpdu_start_tid(ar->ab, desc); |
| |
| /* Please note that caller will having the access to msdu and completing |
| * rx with mac80211. Need not worry about cleaning up amsdu_list. |
| */ |
| |
| return 0; |
| } |
| |
| static bool ath11k_dp_rx_h_reo_err(struct ath11k *ar, struct sk_buff *msdu, |
| struct ieee80211_rx_status *status, |
| struct sk_buff_head *msdu_list) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| bool drop = false; |
| |
| ar->ab->soc_stats.reo_error[rxcb->err_code]++; |
| |
| switch (rxcb->err_code) { |
| case HAL_REO_DEST_RING_ERROR_CODE_DESC_ADDR_ZERO: |
| if (ath11k_dp_rx_h_null_q_desc(ar, msdu, status, msdu_list)) |
| drop = true; |
| break; |
| case HAL_REO_DEST_RING_ERROR_CODE_PN_CHECK_FAILED: |
| /* TODO: Do not drop PN failed packets in the driver; |
| * instead, it is good to drop such packets in mac80211 |
| * after incrementing the replay counters. |
| */ |
| fallthrough; |
| default: |
| /* TODO: Review other errors and process them to mac80211 |
| * as appropriate. |
| */ |
| drop = true; |
| break; |
| } |
| |
| return drop; |
| } |
| |
| static void ath11k_dp_rx_h_tkip_mic_err(struct ath11k *ar, struct sk_buff *msdu, |
| struct ieee80211_rx_status *status) |
| { |
| u16 msdu_len; |
| struct hal_rx_desc *desc = (struct hal_rx_desc *)msdu->data; |
| u8 l3pad_bytes; |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| u32 hal_rx_desc_sz = ar->ab->hw_params.hal_desc_sz; |
| |
| rxcb->is_first_msdu = ath11k_dp_rx_h_msdu_end_first_msdu(ar->ab, desc); |
| rxcb->is_last_msdu = ath11k_dp_rx_h_msdu_end_last_msdu(ar->ab, desc); |
| |
| l3pad_bytes = ath11k_dp_rx_h_msdu_end_l3pad(ar->ab, desc); |
| msdu_len = ath11k_dp_rx_h_msdu_start_msdu_len(ar->ab, desc); |
| skb_put(msdu, hal_rx_desc_sz + l3pad_bytes + msdu_len); |
| skb_pull(msdu, hal_rx_desc_sz + l3pad_bytes); |
| |
| ath11k_dp_rx_h_ppdu(ar, desc, status); |
| |
| status->flag |= (RX_FLAG_MMIC_STRIPPED | RX_FLAG_MMIC_ERROR | |
| RX_FLAG_DECRYPTED); |
| |
| ath11k_dp_rx_h_undecap(ar, msdu, desc, |
| HAL_ENCRYPT_TYPE_TKIP_MIC, status, false); |
| } |
| |
| static bool ath11k_dp_rx_h_rxdma_err(struct ath11k *ar, struct sk_buff *msdu, |
| struct ieee80211_rx_status *status) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| bool drop = false; |
| |
| ar->ab->soc_stats.rxdma_error[rxcb->err_code]++; |
| |
| switch (rxcb->err_code) { |
| case HAL_REO_ENTR_RING_RXDMA_ECODE_TKIP_MIC_ERR: |
| ath11k_dp_rx_h_tkip_mic_err(ar, msdu, status); |
| break; |
| default: |
| /* TODO: Review other rxdma error code to check if anything is |
| * worth reporting to mac80211 |
| */ |
| drop = true; |
| break; |
| } |
| |
| return drop; |
| } |
| |
| static void ath11k_dp_rx_wbm_err(struct ath11k *ar, |
| struct napi_struct *napi, |
| struct sk_buff *msdu, |
| struct sk_buff_head *msdu_list) |
| { |
| struct ath11k_skb_rxcb *rxcb = ATH11K_SKB_RXCB(msdu); |
| struct ieee80211_rx_status rxs = {0}; |
| bool drop = true; |
| |
| switch (rxcb->err_rel_src) { |
| case HAL_WBM_REL_SRC_MODULE_REO: |
| drop = ath11k_dp_rx_h_reo_err(ar, msdu, &rxs, msdu_list); |
| break; |
| case HAL_WBM_REL_SRC_MODULE_RXDMA: |
| drop = ath11k_dp_rx_h_rxdma_err(ar, msdu, &rxs); |
| break; |
| default: |
| /* msdu will get freed */ |
| break; |
| } |
| |
| if (drop) { |
| dev_kfree_skb_any(msdu); |
| return; |
| } |
| |
| ath11k_dp_rx_deliver_msdu(ar, napi, msdu, &rxs); |
| } |
| |
| int ath11k_dp_rx_process_wbm_err(struct ath11k_base *ab, |
| struct napi_struct *napi, int budget) |
| { |
| struct ath11k *ar; |
| struct ath11k_dp *dp = &ab->dp; |
| struct dp_rxdma_ring *rx_ring; |
| struct hal_rx_wbm_rel_info err_info; |
| struct hal_srng *srng; |
| struct sk_buff *msdu; |
| struct sk_buff_head msdu_list[MAX_RADIOS]; |
| struct ath11k_skb_rxcb *rxcb; |
| u32 *rx_desc; |
| int buf_id, mac_id; |
| int num_buffs_reaped[MAX_RADIOS] = {0}; |
| int total_num_buffs_reaped = 0; |
| int ret, i; |
| |
| for (i = 0; i < ab->num_radios; i++) |
| __skb_queue_head_init(&msdu_list[i]); |
| |
| srng = &ab->hal.srng_list[dp->rx_rel_ring.ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| while (budget) { |
| rx_desc = ath11k_hal_srng_dst_get_next_entry(ab, srng); |
| if (!rx_desc) |
| break; |
| |
| ret = ath11k_hal_wbm_desc_parse_err(ab, rx_desc, &err_info); |
| if (ret) { |
| ath11k_warn(ab, |
| "failed to parse rx error in wbm_rel ring desc %d\n", |
| ret); |
| continue; |
| } |
| |
| buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, err_info.cookie); |
| mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, err_info.cookie); |
| |
| ar = ab->pdevs[mac_id].ar; |
| rx_ring = &ar->dp.rx_refill_buf_ring; |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| msdu = idr_find(&rx_ring->bufs_idr, buf_id); |
| if (!msdu) { |
| ath11k_warn(ab, "frame rx with invalid buf_id %d pdev %d\n", |
| buf_id, mac_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| continue; |
| } |
| |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| rxcb = ATH11K_SKB_RXCB(msdu); |
| dma_unmap_single(ab->dev, rxcb->paddr, |
| msdu->len + skb_tailroom(msdu), |
| DMA_FROM_DEVICE); |
| |
| num_buffs_reaped[mac_id]++; |
| total_num_buffs_reaped++; |
| budget--; |
| |
| if (err_info.push_reason != |
| HAL_REO_DEST_RING_PUSH_REASON_ERR_DETECTED) { |
| dev_kfree_skb_any(msdu); |
| continue; |
| } |
| |
| rxcb->err_rel_src = err_info.err_rel_src; |
| rxcb->err_code = err_info.err_code; |
| rxcb->rx_desc = (struct hal_rx_desc *)msdu->data; |
| __skb_queue_tail(&msdu_list[mac_id], msdu); |
| } |
| |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| if (!total_num_buffs_reaped) |
| goto done; |
| |
| for (i = 0; i < ab->num_radios; i++) { |
| if (!num_buffs_reaped[i]) |
| continue; |
| |
| ar = ab->pdevs[i].ar; |
| rx_ring = &ar->dp.rx_refill_buf_ring; |
| |
| ath11k_dp_rxbufs_replenish(ab, i, rx_ring, num_buffs_reaped[i], |
| ab->hw_params.hal_params->rx_buf_rbm); |
| } |
| |
| rcu_read_lock(); |
| for (i = 0; i < ab->num_radios; i++) { |
| if (!rcu_dereference(ab->pdevs_active[i])) { |
| __skb_queue_purge(&msdu_list[i]); |
| continue; |
| } |
| |
| ar = ab->pdevs[i].ar; |
| |
| if (test_bit(ATH11K_CAC_RUNNING, &ar->dev_flags)) { |
| __skb_queue_purge(&msdu_list[i]); |
| continue; |
| } |
| |
| while ((msdu = __skb_dequeue(&msdu_list[i])) != NULL) |
| ath11k_dp_rx_wbm_err(ar, napi, msdu, &msdu_list[i]); |
| } |
| rcu_read_unlock(); |
| done: |
| return total_num_buffs_reaped; |
| } |
| |
| int ath11k_dp_process_rxdma_err(struct ath11k_base *ab, int mac_id, int budget) |
| { |
| struct ath11k *ar; |
| struct dp_srng *err_ring; |
| struct dp_rxdma_ring *rx_ring; |
| struct dp_link_desc_bank *link_desc_banks = ab->dp.link_desc_banks; |
| struct hal_srng *srng; |
| u32 msdu_cookies[HAL_NUM_RX_MSDUS_PER_LINK_DESC]; |
| enum hal_rx_buf_return_buf_manager rbm; |
| enum hal_reo_entr_rxdma_ecode rxdma_err_code; |
| struct ath11k_skb_rxcb *rxcb; |
| struct sk_buff *skb; |
| struct hal_reo_entrance_ring *entr_ring; |
| void *desc; |
| int num_buf_freed = 0; |
| int quota = budget; |
| dma_addr_t paddr; |
| u32 desc_bank; |
| void *link_desc_va; |
| int num_msdus; |
| int i; |
| int buf_id; |
| |
| ar = ab->pdevs[ath11k_hw_mac_id_to_pdev_id(&ab->hw_params, mac_id)].ar; |
| err_ring = &ar->dp.rxdma_err_dst_ring[ath11k_hw_mac_id_to_srng_id(&ab->hw_params, |
| mac_id)]; |
| rx_ring = &ar->dp.rx_refill_buf_ring; |
| |
| srng = &ab->hal.srng_list[err_ring->ring_id]; |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| while (quota-- && |
| (desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { |
| ath11k_hal_rx_reo_ent_paddr_get(ab, desc, &paddr, &desc_bank); |
| |
| entr_ring = (struct hal_reo_entrance_ring *)desc; |
| rxdma_err_code = |
| FIELD_GET(HAL_REO_ENTR_RING_INFO1_RXDMA_ERROR_CODE, |
| entr_ring->info1); |
| ab->soc_stats.rxdma_error[rxdma_err_code]++; |
| |
| link_desc_va = link_desc_banks[desc_bank].vaddr + |
| (paddr - link_desc_banks[desc_bank].paddr); |
| ath11k_hal_rx_msdu_link_info_get(link_desc_va, &num_msdus, |
| msdu_cookies, &rbm); |
| |
| for (i = 0; i < num_msdus; i++) { |
| buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, |
| msdu_cookies[i]); |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| skb = idr_find(&rx_ring->bufs_idr, buf_id); |
| if (!skb) { |
| ath11k_warn(ab, "rxdma error with invalid buf_id %d\n", |
| buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| continue; |
| } |
| |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| rxcb = ATH11K_SKB_RXCB(skb); |
| dma_unmap_single(ab->dev, rxcb->paddr, |
| skb->len + skb_tailroom(skb), |
| DMA_FROM_DEVICE); |
| dev_kfree_skb_any(skb); |
| |
| num_buf_freed++; |
| } |
| |
| ath11k_dp_rx_link_desc_return(ab, desc, |
| HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); |
| } |
| |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| |
| if (num_buf_freed) |
| ath11k_dp_rxbufs_replenish(ab, mac_id, rx_ring, num_buf_freed, |
| ab->hw_params.hal_params->rx_buf_rbm); |
| |
| return budget - quota; |
| } |
| |
| void ath11k_dp_process_reo_status(struct ath11k_base *ab) |
| { |
| struct ath11k_dp *dp = &ab->dp; |
| struct hal_srng *srng; |
| struct dp_reo_cmd *cmd, *tmp; |
| bool found = false; |
| u32 *reo_desc; |
| u16 tag; |
| struct hal_reo_status reo_status; |
| |
| srng = &ab->hal.srng_list[dp->reo_status_ring.ring_id]; |
| |
| memset(&reo_status, 0, sizeof(reo_status)); |
| |
| spin_lock_bh(&srng->lock); |
| |
| ath11k_hal_srng_access_begin(ab, srng); |
| |
| while ((reo_desc = ath11k_hal_srng_dst_get_next_entry(ab, srng))) { |
| tag = FIELD_GET(HAL_SRNG_TLV_HDR_TAG, *reo_desc); |
| |
| switch (tag) { |
| case HAL_REO_GET_QUEUE_STATS_STATUS: |
| ath11k_hal_reo_status_queue_stats(ab, reo_desc, |
| &reo_status); |
| break; |
| case HAL_REO_FLUSH_QUEUE_STATUS: |
| ath11k_hal_reo_flush_queue_status(ab, reo_desc, |
| &reo_status); |
| break; |
| case HAL_REO_FLUSH_CACHE_STATUS: |
| ath11k_hal_reo_flush_cache_status(ab, reo_desc, |
| &reo_status); |
| break; |
| case HAL_REO_UNBLOCK_CACHE_STATUS: |
| ath11k_hal_reo_unblk_cache_status(ab, reo_desc, |
| &reo_status); |
| break; |
| case HAL_REO_FLUSH_TIMEOUT_LIST_STATUS: |
| ath11k_hal_reo_flush_timeout_list_status(ab, reo_desc, |
| &reo_status); |
| break; |
| case HAL_REO_DESCRIPTOR_THRESHOLD_REACHED_STATUS: |
| ath11k_hal_reo_desc_thresh_reached_status(ab, reo_desc, |
| &reo_status); |
| break; |
| case HAL_REO_UPDATE_RX_REO_QUEUE_STATUS: |
| ath11k_hal_reo_update_rx_reo_queue_status(ab, reo_desc, |
| &reo_status); |
| break; |
| default: |
| ath11k_warn(ab, "Unknown reo status type %d\n", tag); |
| continue; |
| } |
| |
| spin_lock_bh(&dp->reo_cmd_lock); |
| list_for_each_entry_safe(cmd, tmp, &dp->reo_cmd_list, list) { |
| if (reo_status.uniform_hdr.cmd_num == cmd->cmd_num) { |
| found = true; |
| list_del(&cmd->list); |
| break; |
| } |
| } |
| spin_unlock_bh(&dp->reo_cmd_lock); |
| |
| if (found) { |
| cmd->handler(dp, (void *)&cmd->data, |
| reo_status.uniform_hdr.cmd_status); |
| kfree(cmd); |
| } |
| |
| found = false; |
| } |
| |
| ath11k_hal_srng_access_end(ab, srng); |
| |
| spin_unlock_bh(&srng->lock); |
| } |
| |
| void ath11k_dp_rx_pdev_free(struct ath11k_base *ab, int mac_id) |
| { |
| struct ath11k *ar = ab->pdevs[mac_id].ar; |
| |
| ath11k_dp_rx_pdev_srng_free(ar); |
| ath11k_dp_rxdma_pdev_buf_free(ar); |
| } |
| |
| int ath11k_dp_rx_pdev_alloc(struct ath11k_base *ab, int mac_id) |
| { |
| struct ath11k *ar = ab->pdevs[mac_id].ar; |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| u32 ring_id; |
| int i; |
| int ret; |
| |
| ret = ath11k_dp_rx_pdev_srng_alloc(ar); |
| if (ret) { |
| ath11k_warn(ab, "failed to setup rx srngs\n"); |
| return ret; |
| } |
| |
| ret = ath11k_dp_rxdma_pdev_buf_setup(ar); |
| if (ret) { |
| ath11k_warn(ab, "failed to setup rxdma ring\n"); |
| return ret; |
| } |
| |
| ring_id = dp->rx_refill_buf_ring.refill_buf_ring.ring_id; |
| ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, mac_id, HAL_RXDMA_BUF); |
| if (ret) { |
| ath11k_warn(ab, "failed to configure rx_refill_buf_ring %d\n", |
| ret); |
| return ret; |
| } |
| |
| if (ab->hw_params.rx_mac_buf_ring) { |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| ring_id = dp->rx_mac_buf_ring[i].ring_id; |
| ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, |
| mac_id + i, HAL_RXDMA_BUF); |
| if (ret) { |
| ath11k_warn(ab, "failed to configure rx_mac_buf_ring%d %d\n", |
| i, ret); |
| return ret; |
| } |
| } |
| } |
| |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| ring_id = dp->rxdma_err_dst_ring[i].ring_id; |
| ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, |
| mac_id + i, HAL_RXDMA_DST); |
| if (ret) { |
| ath11k_warn(ab, "failed to configure rxdma_err_dest_ring%d %d\n", |
| i, ret); |
| return ret; |
| } |
| } |
| |
| if (!ab->hw_params.rxdma1_enable) |
| goto config_refill_ring; |
| |
| ring_id = dp->rxdma_mon_buf_ring.refill_buf_ring.ring_id; |
| ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, |
| mac_id, HAL_RXDMA_MONITOR_BUF); |
| if (ret) { |
| ath11k_warn(ab, "failed to configure rxdma_mon_buf_ring %d\n", |
| ret); |
| return ret; |
| } |
| ret = ath11k_dp_tx_htt_srng_setup(ab, |
| dp->rxdma_mon_dst_ring.ring_id, |
| mac_id, HAL_RXDMA_MONITOR_DST); |
| if (ret) { |
| ath11k_warn(ab, "failed to configure rxdma_mon_dst_ring %d\n", |
| ret); |
| return ret; |
| } |
| ret = ath11k_dp_tx_htt_srng_setup(ab, |
| dp->rxdma_mon_desc_ring.ring_id, |
| mac_id, HAL_RXDMA_MONITOR_DESC); |
| if (ret) { |
| ath11k_warn(ab, "failed to configure rxdma_mon_dst_ring %d\n", |
| ret); |
| return ret; |
| } |
| |
| config_refill_ring: |
| for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) { |
| ring_id = dp->rx_mon_status_refill_ring[i].refill_buf_ring.ring_id; |
| ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, mac_id + i, |
| HAL_RXDMA_MONITOR_STATUS); |
| if (ret) { |
| ath11k_warn(ab, |
| "failed to configure mon_status_refill_ring%d %d\n", |
| i, ret); |
| return ret; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void ath11k_dp_mon_set_frag_len(u32 *total_len, u32 *frag_len) |
| { |
| if (*total_len >= (DP_RX_BUFFER_SIZE - sizeof(struct hal_rx_desc))) { |
| *frag_len = DP_RX_BUFFER_SIZE - sizeof(struct hal_rx_desc); |
| *total_len -= *frag_len; |
| } else { |
| *frag_len = *total_len; |
| *total_len = 0; |
| } |
| } |
| |
| static |
| int ath11k_dp_rx_monitor_link_desc_return(struct ath11k *ar, |
| void *p_last_buf_addr_info, |
| u8 mac_id) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct dp_srng *dp_srng; |
| void *hal_srng; |
| void *src_srng_desc; |
| int ret = 0; |
| |
| if (ar->ab->hw_params.rxdma1_enable) { |
| dp_srng = &dp->rxdma_mon_desc_ring; |
| hal_srng = &ar->ab->hal.srng_list[dp_srng->ring_id]; |
| } else { |
| dp_srng = &ar->ab->dp.wbm_desc_rel_ring; |
| hal_srng = &ar->ab->hal.srng_list[dp_srng->ring_id]; |
| } |
| |
| ath11k_hal_srng_access_begin(ar->ab, hal_srng); |
| |
| src_srng_desc = ath11k_hal_srng_src_get_next_entry(ar->ab, hal_srng); |
| |
| if (src_srng_desc) { |
| struct ath11k_buffer_addr *src_desc = |
| (struct ath11k_buffer_addr *)src_srng_desc; |
| |
| *src_desc = *((struct ath11k_buffer_addr *)p_last_buf_addr_info); |
| } else { |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "Monitor Link Desc Ring %d Full", mac_id); |
| ret = -ENOMEM; |
| } |
| |
| ath11k_hal_srng_access_end(ar->ab, hal_srng); |
| return ret; |
| } |
| |
| static |
| void ath11k_dp_rx_mon_next_link_desc_get(void *rx_msdu_link_desc, |
| dma_addr_t *paddr, u32 *sw_cookie, |
| u8 *rbm, |
| void **pp_buf_addr_info) |
| { |
| struct hal_rx_msdu_link *msdu_link = |
| (struct hal_rx_msdu_link *)rx_msdu_link_desc; |
| struct ath11k_buffer_addr *buf_addr_info; |
| |
| buf_addr_info = (struct ath11k_buffer_addr *)&msdu_link->buf_addr_info; |
| |
| ath11k_hal_rx_buf_addr_info_get(buf_addr_info, paddr, sw_cookie, rbm); |
| |
| *pp_buf_addr_info = (void *)buf_addr_info; |
| } |
| |
| static int ath11k_dp_pkt_set_pktlen(struct sk_buff *skb, u32 len) |
| { |
| if (skb->len > len) { |
| skb_trim(skb, len); |
| } else { |
| if (skb_tailroom(skb) < len - skb->len) { |
| if ((pskb_expand_head(skb, 0, |
| len - skb->len - skb_tailroom(skb), |
| GFP_ATOMIC))) { |
| dev_kfree_skb_any(skb); |
| return -ENOMEM; |
| } |
| } |
| skb_put(skb, (len - skb->len)); |
| } |
| return 0; |
| } |
| |
| static void ath11k_hal_rx_msdu_list_get(struct ath11k *ar, |
| void *msdu_link_desc, |
| struct hal_rx_msdu_list *msdu_list, |
| u16 *num_msdus) |
| { |
| struct hal_rx_msdu_details *msdu_details = NULL; |
| struct rx_msdu_desc *msdu_desc_info = NULL; |
| struct hal_rx_msdu_link *msdu_link = NULL; |
| int i; |
| u32 last = FIELD_PREP(RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU, 1); |
| u32 first = FIELD_PREP(RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU, 1); |
| u8 tmp = 0; |
| |
| msdu_link = (struct hal_rx_msdu_link *)msdu_link_desc; |
| msdu_details = &msdu_link->msdu_link[0]; |
| |
| for (i = 0; i < HAL_RX_NUM_MSDU_DESC; i++) { |
| if (FIELD_GET(BUFFER_ADDR_INFO0_ADDR, |
| msdu_details[i].buf_addr_info.info0) == 0) { |
| msdu_desc_info = &msdu_details[i - 1].rx_msdu_info; |
| msdu_desc_info->info0 |= last; |
| ; |
| break; |
| } |
| msdu_desc_info = &msdu_details[i].rx_msdu_info; |
| |
| if (!i) |
| msdu_desc_info->info0 |= first; |
| else if (i == (HAL_RX_NUM_MSDU_DESC - 1)) |
| msdu_desc_info->info0 |= last; |
| msdu_list->msdu_info[i].msdu_flags = msdu_desc_info->info0; |
| msdu_list->msdu_info[i].msdu_len = |
| HAL_RX_MSDU_PKT_LENGTH_GET(msdu_desc_info->info0); |
| msdu_list->sw_cookie[i] = |
| FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE, |
| msdu_details[i].buf_addr_info.info1); |
| tmp = FIELD_GET(BUFFER_ADDR_INFO1_RET_BUF_MGR, |
| msdu_details[i].buf_addr_info.info1); |
| msdu_list->rbm[i] = tmp; |
| } |
| *num_msdus = i; |
| } |
| |
| static u32 ath11k_dp_rx_mon_comp_ppduid(u32 msdu_ppdu_id, u32 *ppdu_id, |
| u32 *rx_bufs_used) |
| { |
| u32 ret = 0; |
| |
| if ((*ppdu_id < msdu_ppdu_id) && |
| ((msdu_ppdu_id - *ppdu_id) < DP_NOT_PPDU_ID_WRAP_AROUND)) { |
| *ppdu_id = msdu_ppdu_id; |
| ret = msdu_ppdu_id; |
| } else if ((*ppdu_id > msdu_ppdu_id) && |
| ((*ppdu_id - msdu_ppdu_id) > DP_NOT_PPDU_ID_WRAP_AROUND)) { |
| /* mon_dst is behind than mon_status |
| * skip dst_ring and free it |
| */ |
| *rx_bufs_used += 1; |
| *ppdu_id = msdu_ppdu_id; |
| ret = msdu_ppdu_id; |
| } |
| return ret; |
| } |
| |
| static void ath11k_dp_mon_get_buf_len(struct hal_rx_msdu_desc_info *info, |
| bool *is_frag, u32 *total_len, |
| u32 *frag_len, u32 *msdu_cnt) |
| { |
| if (info->msdu_flags & RX_MSDU_DESC_INFO0_MSDU_CONTINUATION) { |
| if (!*is_frag) { |
| *total_len = info->msdu_len; |
| *is_frag = true; |
| } |
| ath11k_dp_mon_set_frag_len(total_len, |
| frag_len); |
| } else { |
| if (*is_frag) { |
| ath11k_dp_mon_set_frag_len(total_len, |
| frag_len); |
| } else { |
| *frag_len = info->msdu_len; |
| } |
| *is_frag = false; |
| *msdu_cnt -= 1; |
| } |
| } |
| |
| static u32 |
| ath11k_dp_rx_mon_mpdu_pop(struct ath11k *ar, int mac_id, |
| void *ring_entry, struct sk_buff **head_msdu, |
| struct sk_buff **tail_msdu, u32 *npackets, |
| u32 *ppdu_id) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; |
| struct dp_rxdma_ring *rx_ring = &dp->rxdma_mon_buf_ring; |
| struct sk_buff *msdu = NULL, *last = NULL; |
| struct hal_rx_msdu_list msdu_list; |
| void *p_buf_addr_info, *p_last_buf_addr_info; |
| struct hal_rx_desc *rx_desc; |
| void *rx_msdu_link_desc; |
| dma_addr_t paddr; |
| u16 num_msdus = 0; |
| u32 rx_buf_size, rx_pkt_offset, sw_cookie; |
| u32 rx_bufs_used = 0, i = 0; |
| u32 msdu_ppdu_id = 0, msdu_cnt = 0; |
| u32 total_len = 0, frag_len = 0; |
| bool is_frag, is_first_msdu; |
| bool drop_mpdu = false; |
| struct ath11k_skb_rxcb *rxcb; |
| struct hal_reo_entrance_ring *ent_desc = |
| (struct hal_reo_entrance_ring *)ring_entry; |
| int buf_id; |
| u32 rx_link_buf_info[2]; |
| u8 rbm; |
| |
| if (!ar->ab->hw_params.rxdma1_enable) |
| rx_ring = &dp->rx_refill_buf_ring; |
| |
| ath11k_hal_rx_reo_ent_buf_paddr_get(ring_entry, &paddr, |
| &sw_cookie, |
| &p_last_buf_addr_info, &rbm, |
| &msdu_cnt); |
| |
| if (FIELD_GET(HAL_REO_ENTR_RING_INFO1_RXDMA_PUSH_REASON, |
| ent_desc->info1) == |
| HAL_REO_DEST_RING_PUSH_REASON_ERR_DETECTED) { |
| u8 rxdma_err = |
| FIELD_GET(HAL_REO_ENTR_RING_INFO1_RXDMA_ERROR_CODE, |
| ent_desc->info1); |
| if (rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_FLUSH_REQUEST_ERR || |
| rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_MPDU_LEN_ERR || |
| rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_OVERFLOW_ERR) { |
| drop_mpdu = true; |
| pmon->rx_mon_stats.dest_mpdu_drop++; |
| } |
| } |
| |
| is_frag = false; |
| is_first_msdu = true; |
| |
| do { |
| if (pmon->mon_last_linkdesc_paddr == paddr) { |
| pmon->rx_mon_stats.dup_mon_linkdesc_cnt++; |
| return rx_bufs_used; |
| } |
| |
| if (ar->ab->hw_params.rxdma1_enable) |
| rx_msdu_link_desc = |
| (void *)pmon->link_desc_banks[sw_cookie].vaddr + |
| (paddr - pmon->link_desc_banks[sw_cookie].paddr); |
| else |
| rx_msdu_link_desc = |
| (void *)ar->ab->dp.link_desc_banks[sw_cookie].vaddr + |
| (paddr - ar->ab->dp.link_desc_banks[sw_cookie].paddr); |
| |
| ath11k_hal_rx_msdu_list_get(ar, rx_msdu_link_desc, &msdu_list, |
| &num_msdus); |
| |
| for (i = 0; i < num_msdus; i++) { |
| u32 l2_hdr_offset; |
| |
| if (pmon->mon_last_buf_cookie == msdu_list.sw_cookie[i]) { |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "i %d last_cookie %d is same\n", |
| i, pmon->mon_last_buf_cookie); |
| drop_mpdu = true; |
| pmon->rx_mon_stats.dup_mon_buf_cnt++; |
| continue; |
| } |
| buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, |
| msdu_list.sw_cookie[i]); |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| msdu = idr_find(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| if (!msdu) { |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "msdu_pop: invalid buf_id %d\n", buf_id); |
| break; |
| } |
| rxcb = ATH11K_SKB_RXCB(msdu); |
| if (!rxcb->unmapped) { |
| dma_unmap_single(ar->ab->dev, rxcb->paddr, |
| msdu->len + |
| skb_tailroom(msdu), |
| DMA_FROM_DEVICE); |
| rxcb->unmapped = 1; |
| } |
| if (drop_mpdu) { |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "i %d drop msdu %p *ppdu_id %x\n", |
| i, msdu, *ppdu_id); |
| dev_kfree_skb_any(msdu); |
| msdu = NULL; |
| goto next_msdu; |
| } |
| |
| rx_desc = (struct hal_rx_desc *)msdu->data; |
| |
| rx_pkt_offset = sizeof(struct hal_rx_desc); |
| l2_hdr_offset = ath11k_dp_rx_h_msdu_end_l3pad(ar->ab, rx_desc); |
| |
| if (is_first_msdu) { |
| if (!ath11k_dp_rxdesc_mpdu_valid(ar->ab, rx_desc)) { |
| drop_mpdu = true; |
| dev_kfree_skb_any(msdu); |
| msdu = NULL; |
| pmon->mon_last_linkdesc_paddr = paddr; |
| goto next_msdu; |
| } |
| |
| msdu_ppdu_id = |
| ath11k_dp_rxdesc_get_ppduid(ar->ab, rx_desc); |
| |
| if (ath11k_dp_rx_mon_comp_ppduid(msdu_ppdu_id, |
| ppdu_id, |
| &rx_bufs_used)) { |
| if (rx_bufs_used) { |
| drop_mpdu = true; |
| dev_kfree_skb_any(msdu); |
| msdu = NULL; |
| goto next_msdu; |
| } |
| return rx_bufs_used; |
| } |
| pmon->mon_last_linkdesc_paddr = paddr; |
| is_first_msdu = false; |
| } |
| ath11k_dp_mon_get_buf_len(&msdu_list.msdu_info[i], |
| &is_frag, &total_len, |
| &frag_len, &msdu_cnt); |
| rx_buf_size = rx_pkt_offset + l2_hdr_offset + frag_len; |
| |
| ath11k_dp_pkt_set_pktlen(msdu, rx_buf_size); |
| |
| if (!(*head_msdu)) |
| *head_msdu = msdu; |
| else if (last) |
| last->next = msdu; |
| |
| last = msdu; |
| next_msdu: |
| pmon->mon_last_buf_cookie = msdu_list.sw_cookie[i]; |
| rx_bufs_used++; |
| spin_lock_bh(&rx_ring->idr_lock); |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| } |
| |
| ath11k_hal_rx_buf_addr_info_set(rx_link_buf_info, paddr, sw_cookie, rbm); |
| |
| ath11k_dp_rx_mon_next_link_desc_get(rx_msdu_link_desc, &paddr, |
| &sw_cookie, &rbm, |
| &p_buf_addr_info); |
| |
| if (ar->ab->hw_params.rxdma1_enable) { |
| if (ath11k_dp_rx_monitor_link_desc_return(ar, |
| p_last_buf_addr_info, |
| dp->mac_id)) |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "dp_rx_monitor_link_desc_return failed"); |
| } else { |
| ath11k_dp_rx_link_desc_return(ar->ab, rx_link_buf_info, |
| HAL_WBM_REL_BM_ACT_PUT_IN_IDLE); |
| } |
| |
| p_last_buf_addr_info = p_buf_addr_info; |
| |
| } while (paddr && msdu_cnt); |
| |
| if (last) |
| last->next = NULL; |
| |
| *tail_msdu = msdu; |
| |
| if (msdu_cnt == 0) |
| *npackets = 1; |
| |
| return rx_bufs_used; |
| } |
| |
| static void ath11k_dp_rx_msdus_set_payload(struct ath11k *ar, struct sk_buff *msdu) |
| { |
| u32 rx_pkt_offset, l2_hdr_offset; |
| |
| rx_pkt_offset = ar->ab->hw_params.hal_desc_sz; |
| l2_hdr_offset = ath11k_dp_rx_h_msdu_end_l3pad(ar->ab, |
| (struct hal_rx_desc *)msdu->data); |
| skb_pull(msdu, rx_pkt_offset + l2_hdr_offset); |
| } |
| |
| static struct sk_buff * |
| ath11k_dp_rx_mon_merg_msdus(struct ath11k *ar, |
| u32 mac_id, struct sk_buff *head_msdu, |
| struct sk_buff *last_msdu, |
| struct ieee80211_rx_status *rxs, bool *fcs_err) |
| { |
| struct ath11k_base *ab = ar->ab; |
| struct sk_buff *msdu, *prev_buf; |
| struct hal_rx_desc *rx_desc; |
| char *hdr_desc; |
| u8 *dest, decap_format; |
| struct ieee80211_hdr_3addr *wh; |
| struct rx_attention *rx_attention; |
| u32 err_bitmap; |
| |
| if (!head_msdu) |
| goto err_merge_fail; |
| |
| rx_desc = (struct hal_rx_desc *)head_msdu->data; |
| rx_attention = ath11k_dp_rx_get_attention(ab, rx_desc); |
| err_bitmap = ath11k_dp_rx_h_attn_mpdu_err(rx_attention); |
| |
| if (err_bitmap & DP_RX_MPDU_ERR_FCS) |
| *fcs_err = true; |
| |
| if (ath11k_dp_rxdesc_get_mpdulen_err(rx_attention)) |
| return NULL; |
| |
| decap_format = ath11k_dp_rx_h_msdu_start_decap_type(ab, rx_desc); |
| |
| ath11k_dp_rx_h_ppdu(ar, rx_desc, rxs); |
| |
| if (decap_format == DP_RX_DECAP_TYPE_RAW) { |
| ath11k_dp_rx_msdus_set_payload(ar, head_msdu); |
| |
| prev_buf = head_msdu; |
| msdu = head_msdu->next; |
| |
| while (msdu) { |
| ath11k_dp_rx_msdus_set_payload(ar, msdu); |
| |
| prev_buf = msdu; |
| msdu = msdu->next; |
| } |
| |
| prev_buf->next = NULL; |
| |
| skb_trim(prev_buf, prev_buf->len - HAL_RX_FCS_LEN); |
| } else if (decap_format == DP_RX_DECAP_TYPE_NATIVE_WIFI) { |
| u8 qos_pkt = 0; |
| |
| rx_desc = (struct hal_rx_desc *)head_msdu->data; |
| hdr_desc = ath11k_dp_rxdesc_get_80211hdr(ab, rx_desc); |
| |
| /* Base size */ |
| wh = (struct ieee80211_hdr_3addr *)hdr_desc; |
| |
| if (ieee80211_is_data_qos(wh->frame_control)) |
| qos_pkt = 1; |
| |
| msdu = head_msdu; |
| |
| while (msdu) { |
| ath11k_dp_rx_msdus_set_payload(ar, msdu); |
| if (qos_pkt) { |
| dest = skb_push(msdu, sizeof(__le16)); |
| if (!dest) |
| goto err_merge_fail; |
| memcpy(dest, hdr_desc, sizeof(struct ieee80211_qos_hdr)); |
| } |
| prev_buf = msdu; |
| msdu = msdu->next; |
| } |
| dest = skb_put(prev_buf, HAL_RX_FCS_LEN); |
| if (!dest) |
| goto err_merge_fail; |
| |
| ath11k_dbg(ab, ATH11K_DBG_DATA, |
| "mpdu_buf %pK mpdu_buf->len %u", |
| prev_buf, prev_buf->len); |
| } else { |
| ath11k_dbg(ab, ATH11K_DBG_DATA, |
| "decap format %d is not supported!\n", |
| decap_format); |
| goto err_merge_fail; |
| } |
| |
| return head_msdu; |
| |
| err_merge_fail: |
| return NULL; |
| } |
| |
| static void |
| ath11k_dp_rx_update_radiotap_he(struct hal_rx_mon_ppdu_info *rx_status, |
| u8 *rtap_buf) |
| { |
| u32 rtap_len = 0; |
| |
| put_unaligned_le16(rx_status->he_data1, &rtap_buf[rtap_len]); |
| rtap_len += 2; |
| |
| put_unaligned_le16(rx_status->he_data2, &rtap_buf[rtap_len]); |
| rtap_len += 2; |
| |
| put_unaligned_le16(rx_status->he_data3, &rtap_buf[rtap_len]); |
| rtap_len += 2; |
| |
| put_unaligned_le16(rx_status->he_data4, &rtap_buf[rtap_len]); |
| rtap_len += 2; |
| |
| put_unaligned_le16(rx_status->he_data5, &rtap_buf[rtap_len]); |
| rtap_len += 2; |
| |
| put_unaligned_le16(rx_status->he_data6, &rtap_buf[rtap_len]); |
| } |
| |
| static void |
| ath11k_dp_rx_update_radiotap_he_mu(struct hal_rx_mon_ppdu_info *rx_status, |
| u8 *rtap_buf) |
| { |
| u32 rtap_len = 0; |
| |
| put_unaligned_le16(rx_status->he_flags1, &rtap_buf[rtap_len]); |
| rtap_len += 2; |
| |
| put_unaligned_le16(rx_status->he_flags2, &rtap_buf[rtap_len]); |
| rtap_len += 2; |
| |
| rtap_buf[rtap_len] = rx_status->he_RU[0]; |
| rtap_len += 1; |
| |
| rtap_buf[rtap_len] = rx_status->he_RU[1]; |
| rtap_len += 1; |
| |
| rtap_buf[rtap_len] = rx_status->he_RU[2]; |
| rtap_len += 1; |
| |
| rtap_buf[rtap_len] = rx_status->he_RU[3]; |
| } |
| |
| static void ath11k_update_radiotap(struct ath11k *ar, |
| struct hal_rx_mon_ppdu_info *ppduinfo, |
| struct sk_buff *mon_skb, |
| struct ieee80211_rx_status *rxs) |
| { |
| struct ieee80211_supported_band *sband; |
| u8 *ptr = NULL; |
| |
| rxs->flag |= RX_FLAG_MACTIME_START; |
| rxs->signal = ppduinfo->rssi_comb + ATH11K_DEFAULT_NOISE_FLOOR; |
| |
| if (ppduinfo->nss) |
| rxs->nss = ppduinfo->nss; |
| |
| if (ppduinfo->he_mu_flags) { |
| rxs->flag |= RX_FLAG_RADIOTAP_HE_MU; |
| rxs->encoding = RX_ENC_HE; |
| ptr = skb_push(mon_skb, sizeof(struct ieee80211_radiotap_he_mu)); |
| ath11k_dp_rx_update_radiotap_he_mu(ppduinfo, ptr); |
| } else if (ppduinfo->he_flags) { |
| rxs->flag |= RX_FLAG_RADIOTAP_HE; |
| rxs->encoding = RX_ENC_HE; |
| ptr = skb_push(mon_skb, sizeof(struct ieee80211_radiotap_he)); |
| ath11k_dp_rx_update_radiotap_he(ppduinfo, ptr); |
| rxs->rate_idx = ppduinfo->rate; |
| } else if (ppduinfo->vht_flags) { |
| rxs->encoding = RX_ENC_VHT; |
| rxs->rate_idx = ppduinfo->rate; |
| } else if (ppduinfo->ht_flags) { |
| rxs->encoding = RX_ENC_HT; |
| rxs->rate_idx = ppduinfo->rate; |
| } else { |
| rxs->encoding = RX_ENC_LEGACY; |
| sband = &ar->mac.sbands[rxs->band]; |
| rxs->rate_idx = ath11k_mac_hw_rate_to_idx(sband, ppduinfo->rate, |
| ppduinfo->cck_flag); |
| } |
| |
| rxs->mactime = ppduinfo->tsft; |
| } |
| |
| static int ath11k_dp_rx_mon_deliver(struct ath11k *ar, u32 mac_id, |
| struct sk_buff *head_msdu, |
| struct hal_rx_mon_ppdu_info *ppduinfo, |
| struct sk_buff *tail_msdu, |
| struct napi_struct *napi) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct sk_buff *mon_skb, *skb_next, *header; |
| struct ieee80211_rx_status *rxs = &dp->rx_status; |
| bool fcs_err = false; |
| |
| mon_skb = ath11k_dp_rx_mon_merg_msdus(ar, mac_id, head_msdu, |
| tail_msdu, rxs, &fcs_err); |
| |
| if (!mon_skb) |
| goto mon_deliver_fail; |
| |
| header = mon_skb; |
| |
| rxs->flag = 0; |
| |
| if (fcs_err) |
| rxs->flag = RX_FLAG_FAILED_FCS_CRC; |
| |
| do { |
| skb_next = mon_skb->next; |
| if (!skb_next) |
| rxs->flag &= ~RX_FLAG_AMSDU_MORE; |
| else |
| rxs->flag |= RX_FLAG_AMSDU_MORE; |
| |
| if (mon_skb == header) { |
| header = NULL; |
| rxs->flag &= ~RX_FLAG_ALLOW_SAME_PN; |
| } else { |
| rxs->flag |= RX_FLAG_ALLOW_SAME_PN; |
| } |
| ath11k_update_radiotap(ar, ppduinfo, mon_skb, rxs); |
| |
| ath11k_dp_rx_deliver_msdu(ar, napi, mon_skb, rxs); |
| mon_skb = skb_next; |
| } while (mon_skb); |
| rxs->flag = 0; |
| |
| return 0; |
| |
| mon_deliver_fail: |
| mon_skb = head_msdu; |
| while (mon_skb) { |
| skb_next = mon_skb->next; |
| dev_kfree_skb_any(mon_skb); |
| mon_skb = skb_next; |
| } |
| return -EINVAL; |
| } |
| |
| /* The destination ring processing is stuck if the destination is not |
| * moving while status ring moves 16 PPDU. The destination ring processing |
| * skips this destination ring PPDU as a workaround. |
| */ |
| #define MON_DEST_RING_STUCK_MAX_CNT 16 |
| |
| static void ath11k_dp_rx_mon_dest_process(struct ath11k *ar, int mac_id, |
| u32 quota, struct napi_struct *napi) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; |
| const struct ath11k_hw_hal_params *hal_params; |
| void *ring_entry; |
| void *mon_dst_srng; |
| u32 ppdu_id; |
| u32 rx_bufs_used; |
| u32 ring_id; |
| struct ath11k_pdev_mon_stats *rx_mon_stats; |
| u32 npackets = 0; |
| u32 mpdu_rx_bufs_used; |
| |
| if (ar->ab->hw_params.rxdma1_enable) |
| ring_id = dp->rxdma_mon_dst_ring.ring_id; |
| else |
| ring_id = dp->rxdma_err_dst_ring[mac_id].ring_id; |
| |
| mon_dst_srng = &ar->ab->hal.srng_list[ring_id]; |
| |
| if (!mon_dst_srng) { |
| ath11k_warn(ar->ab, |
| "HAL Monitor Destination Ring Init Failed -- %pK", |
| mon_dst_srng); |
| return; |
| } |
| |
| spin_lock_bh(&pmon->mon_lock); |
| |
| ath11k_hal_srng_access_begin(ar->ab, mon_dst_srng); |
| |
| ppdu_id = pmon->mon_ppdu_info.ppdu_id; |
| rx_bufs_used = 0; |
| rx_mon_stats = &pmon->rx_mon_stats; |
| |
| while ((ring_entry = ath11k_hal_srng_dst_peek(ar->ab, mon_dst_srng))) { |
| struct sk_buff *head_msdu, *tail_msdu; |
| |
| head_msdu = NULL; |
| tail_msdu = NULL; |
| |
| mpdu_rx_bufs_used = ath11k_dp_rx_mon_mpdu_pop(ar, mac_id, ring_entry, |
| &head_msdu, |
| &tail_msdu, |
| &npackets, &ppdu_id); |
| |
| rx_bufs_used += mpdu_rx_bufs_used; |
| |
| if (mpdu_rx_bufs_used) { |
| dp->mon_dest_ring_stuck_cnt = 0; |
| } else { |
| dp->mon_dest_ring_stuck_cnt++; |
| rx_mon_stats->dest_mon_not_reaped++; |
| } |
| |
| if (dp->mon_dest_ring_stuck_cnt > MON_DEST_RING_STUCK_MAX_CNT) { |
| rx_mon_stats->dest_mon_stuck++; |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "status ring ppdu_id=%d dest ring ppdu_id=%d mon_dest_ring_stuck_cnt=%d dest_mon_not_reaped=%u dest_mon_stuck=%u\n", |
| pmon->mon_ppdu_info.ppdu_id, ppdu_id, |
| dp->mon_dest_ring_stuck_cnt, |
| rx_mon_stats->dest_mon_not_reaped, |
| rx_mon_stats->dest_mon_stuck); |
| pmon->mon_ppdu_info.ppdu_id = ppdu_id; |
| continue; |
| } |
| |
| if (ppdu_id != pmon->mon_ppdu_info.ppdu_id) { |
| pmon->mon_ppdu_status = DP_PPDU_STATUS_START; |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "dest_rx: new ppdu_id %x != status ppdu_id %x dest_mon_not_reaped = %u dest_mon_stuck = %u\n", |
| ppdu_id, pmon->mon_ppdu_info.ppdu_id, |
| rx_mon_stats->dest_mon_not_reaped, |
| rx_mon_stats->dest_mon_stuck); |
| break; |
| } |
| if (head_msdu && tail_msdu) { |
| ath11k_dp_rx_mon_deliver(ar, dp->mac_id, head_msdu, |
| &pmon->mon_ppdu_info, |
| tail_msdu, napi); |
| rx_mon_stats->dest_mpdu_done++; |
| } |
| |
| ring_entry = ath11k_hal_srng_dst_get_next_entry(ar->ab, |
| mon_dst_srng); |
| } |
| ath11k_hal_srng_access_end(ar->ab, mon_dst_srng); |
| |
| spin_unlock_bh(&pmon->mon_lock); |
| |
| if (rx_bufs_used) { |
| rx_mon_stats->dest_ppdu_done++; |
| hal_params = ar->ab->hw_params.hal_params; |
| |
| if (ar->ab->hw_params.rxdma1_enable) |
| ath11k_dp_rxbufs_replenish(ar->ab, dp->mac_id, |
| &dp->rxdma_mon_buf_ring, |
| rx_bufs_used, |
| hal_params->rx_buf_rbm); |
| else |
| ath11k_dp_rxbufs_replenish(ar->ab, dp->mac_id, |
| &dp->rx_refill_buf_ring, |
| rx_bufs_used, |
| hal_params->rx_buf_rbm); |
| } |
| } |
| |
| int ath11k_dp_rx_process_mon_status(struct ath11k_base *ab, int mac_id, |
| struct napi_struct *napi, int budget) |
| { |
| struct ath11k *ar = ath11k_ab_to_ar(ab, mac_id); |
| enum hal_rx_mon_status hal_status; |
| struct sk_buff *skb; |
| struct sk_buff_head skb_list; |
| struct ath11k_peer *peer; |
| struct ath11k_sta *arsta; |
| int num_buffs_reaped = 0; |
| u32 rx_buf_sz; |
| u16 log_type; |
| struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&ar->dp.mon_data; |
| struct ath11k_pdev_mon_stats *rx_mon_stats = &pmon->rx_mon_stats; |
| struct hal_rx_mon_ppdu_info *ppdu_info = &pmon->mon_ppdu_info; |
| |
| __skb_queue_head_init(&skb_list); |
| |
| num_buffs_reaped = ath11k_dp_rx_reap_mon_status_ring(ab, mac_id, &budget, |
| &skb_list); |
| if (!num_buffs_reaped) |
| goto exit; |
| |
| memset(ppdu_info, 0, sizeof(*ppdu_info)); |
| ppdu_info->peer_id = HAL_INVALID_PEERID; |
| |
| while ((skb = __skb_dequeue(&skb_list))) { |
| if (ath11k_debugfs_is_pktlog_lite_mode_enabled(ar)) { |
| log_type = ATH11K_PKTLOG_TYPE_LITE_RX; |
| rx_buf_sz = DP_RX_BUFFER_SIZE_LITE; |
| } else if (ath11k_debugfs_is_pktlog_rx_stats_enabled(ar)) { |
| log_type = ATH11K_PKTLOG_TYPE_RX_STATBUF; |
| rx_buf_sz = DP_RX_BUFFER_SIZE; |
| } else { |
| log_type = ATH11K_PKTLOG_TYPE_INVALID; |
| rx_buf_sz = 0; |
| } |
| |
| if (log_type != ATH11K_PKTLOG_TYPE_INVALID) |
| trace_ath11k_htt_rxdesc(ar, skb->data, log_type, rx_buf_sz); |
| |
| memset(ppdu_info, 0, sizeof(*ppdu_info)); |
| ppdu_info->peer_id = HAL_INVALID_PEERID; |
| hal_status = ath11k_hal_rx_parse_mon_status(ab, ppdu_info, skb); |
| |
| if (test_bit(ATH11K_FLAG_MONITOR_STARTED, &ar->monitor_flags) && |
| pmon->mon_ppdu_status == DP_PPDU_STATUS_START && |
| hal_status == HAL_TLV_STATUS_PPDU_DONE) { |
| rx_mon_stats->status_ppdu_done++; |
| pmon->mon_ppdu_status = DP_PPDU_STATUS_DONE; |
| ath11k_dp_rx_mon_dest_process(ar, mac_id, budget, napi); |
| pmon->mon_ppdu_status = DP_PPDU_STATUS_START; |
| } |
| |
| if (ppdu_info->peer_id == HAL_INVALID_PEERID || |
| hal_status != HAL_RX_MON_STATUS_PPDU_DONE) { |
| dev_kfree_skb_any(skb); |
| continue; |
| } |
| |
| rcu_read_lock(); |
| spin_lock_bh(&ab->base_lock); |
| peer = ath11k_peer_find_by_id(ab, ppdu_info->peer_id); |
| |
| if (!peer || !peer->sta) { |
| ath11k_dbg(ab, ATH11K_DBG_DATA, |
| "failed to find the peer with peer_id %d\n", |
| ppdu_info->peer_id); |
| goto next_skb; |
| } |
| |
| arsta = (struct ath11k_sta *)peer->sta->drv_priv; |
| ath11k_dp_rx_update_peer_stats(arsta, ppdu_info); |
| |
| if (ath11k_debugfs_is_pktlog_peer_valid(ar, peer->addr)) |
| trace_ath11k_htt_rxdesc(ar, skb->data, log_type, rx_buf_sz); |
| |
| next_skb: |
| spin_unlock_bh(&ab->base_lock); |
| rcu_read_unlock(); |
| |
| dev_kfree_skb_any(skb); |
| memset(ppdu_info, 0, sizeof(*ppdu_info)); |
| ppdu_info->peer_id = HAL_INVALID_PEERID; |
| } |
| exit: |
| return num_buffs_reaped; |
| } |
| |
| static u32 |
| ath11k_dp_rx_full_mon_mpdu_pop(struct ath11k *ar, |
| void *ring_entry, struct sk_buff **head_msdu, |
| struct sk_buff **tail_msdu, |
| struct hal_sw_mon_ring_entries *sw_mon_entries) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = &dp->mon_data; |
| struct dp_rxdma_ring *rx_ring = &dp->rxdma_mon_buf_ring; |
| struct sk_buff *msdu = NULL, *last = NULL; |
| struct hal_sw_monitor_ring *sw_desc = ring_entry; |
| struct hal_rx_msdu_list msdu_list; |
| struct hal_rx_desc *rx_desc; |
| struct ath11k_skb_rxcb *rxcb; |
| void *rx_msdu_link_desc; |
| void *p_buf_addr_info, *p_last_buf_addr_info; |
| int buf_id, i = 0; |
| u32 rx_buf_size, rx_pkt_offset, l2_hdr_offset; |
| u32 rx_bufs_used = 0, msdu_cnt = 0; |
| u32 total_len = 0, frag_len = 0, sw_cookie; |
| u16 num_msdus = 0; |
| u8 rxdma_err, rbm; |
| bool is_frag, is_first_msdu; |
| bool drop_mpdu = false; |
| |
| ath11k_hal_rx_sw_mon_ring_buf_paddr_get(ring_entry, sw_mon_entries); |
| |
| sw_cookie = sw_mon_entries->mon_dst_sw_cookie; |
| sw_mon_entries->end_of_ppdu = false; |
| sw_mon_entries->drop_ppdu = false; |
| p_last_buf_addr_info = sw_mon_entries->dst_buf_addr_info; |
| msdu_cnt = sw_mon_entries->msdu_cnt; |
| |
| sw_mon_entries->end_of_ppdu = |
| FIELD_GET(HAL_SW_MON_RING_INFO0_END_OF_PPDU, sw_desc->info0); |
| if (sw_mon_entries->end_of_ppdu) |
| return rx_bufs_used; |
| |
| if (FIELD_GET(HAL_SW_MON_RING_INFO0_RXDMA_PUSH_REASON, |
| sw_desc->info0) == |
| HAL_REO_DEST_RING_PUSH_REASON_ERR_DETECTED) { |
| rxdma_err = |
| FIELD_GET(HAL_SW_MON_RING_INFO0_RXDMA_ERROR_CODE, |
| sw_desc->info0); |
| if (rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_FLUSH_REQUEST_ERR || |
| rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_MPDU_LEN_ERR || |
| rxdma_err == HAL_REO_ENTR_RING_RXDMA_ECODE_OVERFLOW_ERR) { |
| pmon->rx_mon_stats.dest_mpdu_drop++; |
| drop_mpdu = true; |
| } |
| } |
| |
| is_frag = false; |
| is_first_msdu = true; |
| |
| do { |
| rx_msdu_link_desc = |
| (u8 *)pmon->link_desc_banks[sw_cookie].vaddr + |
| (sw_mon_entries->mon_dst_paddr - |
| pmon->link_desc_banks[sw_cookie].paddr); |
| |
| ath11k_hal_rx_msdu_list_get(ar, rx_msdu_link_desc, &msdu_list, |
| &num_msdus); |
| |
| for (i = 0; i < num_msdus; i++) { |
| buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, |
| msdu_list.sw_cookie[i]); |
| |
| spin_lock_bh(&rx_ring->idr_lock); |
| msdu = idr_find(&rx_ring->bufs_idr, buf_id); |
| if (!msdu) { |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "full mon msdu_pop: invalid buf_id %d\n", |
| buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| break; |
| } |
| idr_remove(&rx_ring->bufs_idr, buf_id); |
| spin_unlock_bh(&rx_ring->idr_lock); |
| |
| rxcb = ATH11K_SKB_RXCB(msdu); |
| if (!rxcb->unmapped) { |
| dma_unmap_single(ar->ab->dev, rxcb->paddr, |
| msdu->len + |
| skb_tailroom(msdu), |
| DMA_FROM_DEVICE); |
| rxcb->unmapped = 1; |
| } |
| if (drop_mpdu) { |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "full mon: i %d drop msdu %p *ppdu_id %x\n", |
| i, msdu, sw_mon_entries->ppdu_id); |
| dev_kfree_skb_any(msdu); |
| msdu_cnt--; |
| goto next_msdu; |
| } |
| |
| rx_desc = (struct hal_rx_desc *)msdu->data; |
| |
| rx_pkt_offset = sizeof(struct hal_rx_desc); |
| l2_hdr_offset = ath11k_dp_rx_h_msdu_end_l3pad(ar->ab, rx_desc); |
| |
| if (is_first_msdu) { |
| if (!ath11k_dp_rxdesc_mpdu_valid(ar->ab, rx_desc)) { |
| drop_mpdu = true; |
| dev_kfree_skb_any(msdu); |
| msdu = NULL; |
| goto next_msdu; |
| } |
| is_first_msdu = false; |
| } |
| |
| ath11k_dp_mon_get_buf_len(&msdu_list.msdu_info[i], |
| &is_frag, &total_len, |
| &frag_len, &msdu_cnt); |
| |
| rx_buf_size = rx_pkt_offset + l2_hdr_offset + frag_len; |
| |
| ath11k_dp_pkt_set_pktlen(msdu, rx_buf_size); |
| |
| if (!(*head_msdu)) |
| *head_msdu = msdu; |
| else if (last) |
| last->next = msdu; |
| |
| last = msdu; |
| next_msdu: |
| rx_bufs_used++; |
| } |
| |
| ath11k_dp_rx_mon_next_link_desc_get(rx_msdu_link_desc, |
| &sw_mon_entries->mon_dst_paddr, |
| &sw_mon_entries->mon_dst_sw_cookie, |
| &rbm, |
| &p_buf_addr_info); |
| |
| if (ath11k_dp_rx_monitor_link_desc_return(ar, |
| p_last_buf_addr_info, |
| dp->mac_id)) |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, |
| "full mon: dp_rx_monitor_link_desc_return failed\n"); |
| |
| p_last_buf_addr_info = p_buf_addr_info; |
| |
| } while (sw_mon_entries->mon_dst_paddr && msdu_cnt); |
| |
| if (last) |
| last->next = NULL; |
| |
| *tail_msdu = msdu; |
| |
| return rx_bufs_used; |
| } |
| |
| static int ath11k_dp_rx_full_mon_prepare_mpdu(struct ath11k_dp *dp, |
| struct dp_full_mon_mpdu *mon_mpdu, |
| struct sk_buff *head, |
| struct sk_buff *tail) |
| { |
| mon_mpdu = kzalloc(sizeof(*mon_mpdu), GFP_ATOMIC); |
| if (!mon_mpdu) |
| return -ENOMEM; |
| |
| list_add_tail(&mon_mpdu->list, &dp->dp_full_mon_mpdu_list); |
| mon_mpdu->head = head; |
| mon_mpdu->tail = tail; |
| |
| return 0; |
| } |
| |
| static void ath11k_dp_rx_full_mon_drop_ppdu(struct ath11k_dp *dp, |
| struct dp_full_mon_mpdu *mon_mpdu) |
| { |
| struct dp_full_mon_mpdu *tmp; |
| struct sk_buff *tmp_msdu, *skb_next; |
| |
| if (list_empty(&dp->dp_full_mon_mpdu_list)) |
| return; |
| |
| list_for_each_entry_safe(mon_mpdu, tmp, &dp->dp_full_mon_mpdu_list, list) { |
| list_del(&mon_mpdu->list); |
| |
| tmp_msdu = mon_mpdu->head; |
| while (tmp_msdu) { |
| skb_next = tmp_msdu->next; |
| dev_kfree_skb_any(tmp_msdu); |
| tmp_msdu = skb_next; |
| } |
| |
| kfree(mon_mpdu); |
| } |
| } |
| |
| static int ath11k_dp_rx_full_mon_deliver_ppdu(struct ath11k *ar, |
| int mac_id, |
| struct ath11k_mon_data *pmon, |
| struct napi_struct *napi) |
| { |
| struct ath11k_pdev_mon_stats *rx_mon_stats; |
| struct dp_full_mon_mpdu *tmp; |
| struct dp_full_mon_mpdu *mon_mpdu = pmon->mon_mpdu; |
| struct sk_buff *head_msdu, *tail_msdu; |
| struct ath11k_base *ab = ar->ab; |
| struct ath11k_dp *dp = &ab->dp; |
| int ret; |
| |
| rx_mon_stats = &pmon->rx_mon_stats; |
| |
| list_for_each_entry_safe(mon_mpdu, tmp, &dp->dp_full_mon_mpdu_list, list) { |
| list_del(&mon_mpdu->list); |
| head_msdu = mon_mpdu->head; |
| tail_msdu = mon_mpdu->tail; |
| if (head_msdu && tail_msdu) { |
| ret = ath11k_dp_rx_mon_deliver(ar, mac_id, head_msdu, |
| &pmon->mon_ppdu_info, |
| tail_msdu, napi); |
| rx_mon_stats->dest_mpdu_done++; |
| ath11k_dbg(ar->ab, ATH11K_DBG_DATA, "full mon: deliver ppdu\n"); |
| } |
| kfree(mon_mpdu); |
| } |
| |
| return ret; |
| } |
| |
| static int |
| ath11k_dp_rx_process_full_mon_status_ring(struct ath11k_base *ab, int mac_id, |
| struct napi_struct *napi, int budget) |
| { |
| struct ath11k *ar = ab->pdevs[mac_id].ar; |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = &dp->mon_data; |
| struct hal_sw_mon_ring_entries *sw_mon_entries; |
| int quota = 0, work = 0, count; |
| |
| sw_mon_entries = &pmon->sw_mon_entries; |
| |
| while (pmon->hold_mon_dst_ring) { |
| quota = ath11k_dp_rx_process_mon_status(ab, mac_id, |
| napi, 1); |
| if (pmon->buf_state == DP_MON_STATUS_MATCH) { |
| count = sw_mon_entries->status_buf_count; |
| if (count > 1) { |
| quota += ath11k_dp_rx_process_mon_status(ab, mac_id, |
| napi, count); |
| } |
| |
| ath11k_dp_rx_full_mon_deliver_ppdu(ar, dp->mac_id, |
| pmon, napi); |
| pmon->hold_mon_dst_ring = false; |
| } else if (!pmon->mon_status_paddr || |
| pmon->buf_state == DP_MON_STATUS_LEAD) { |
| sw_mon_entries->drop_ppdu = true; |
| pmon->hold_mon_dst_ring = false; |
| } |
| |
| if (!quota) |
| break; |
| |
| work += quota; |
| } |
| |
| if (sw_mon_entries->drop_ppdu) |
| ath11k_dp_rx_full_mon_drop_ppdu(&ab->dp, pmon->mon_mpdu); |
| |
| return work; |
| } |
| |
| static int ath11k_dp_full_mon_process_rx(struct ath11k_base *ab, int mac_id, |
| struct napi_struct *napi, int budget) |
| { |
| struct ath11k *ar = ab->pdevs[mac_id].ar; |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = &dp->mon_data; |
| struct hal_sw_mon_ring_entries *sw_mon_entries; |
| struct ath11k_pdev_mon_stats *rx_mon_stats; |
| struct sk_buff *head_msdu, *tail_msdu; |
| void *mon_dst_srng = &ar->ab->hal.srng_list[dp->rxdma_mon_dst_ring.ring_id]; |
| void *ring_entry; |
| u32 rx_bufs_used = 0, mpdu_rx_bufs_used; |
| int quota = 0, ret; |
| bool break_dst_ring = false; |
| |
| spin_lock_bh(&pmon->mon_lock); |
| |
| sw_mon_entries = &pmon->sw_mon_entries; |
| rx_mon_stats = &pmon->rx_mon_stats; |
| |
| if (pmon->hold_mon_dst_ring) { |
| spin_unlock_bh(&pmon->mon_lock); |
| goto reap_status_ring; |
| } |
| |
| ath11k_hal_srng_access_begin(ar->ab, mon_dst_srng); |
| while ((ring_entry = ath11k_hal_srng_dst_peek(ar->ab, mon_dst_srng))) { |
| head_msdu = NULL; |
| tail_msdu = NULL; |
| |
| mpdu_rx_bufs_used = ath11k_dp_rx_full_mon_mpdu_pop(ar, ring_entry, |
| &head_msdu, |
| &tail_msdu, |
| sw_mon_entries); |
| rx_bufs_used += mpdu_rx_bufs_used; |
| |
| if (!sw_mon_entries->end_of_ppdu) { |
| if (head_msdu) { |
| ret = ath11k_dp_rx_full_mon_prepare_mpdu(&ab->dp, |
| pmon->mon_mpdu, |
| head_msdu, |
| tail_msdu); |
| if (ret) |
| break_dst_ring = true; |
| } |
| |
| goto next_entry; |
| } else { |
| if (!sw_mon_entries->ppdu_id && |
| !sw_mon_entries->mon_status_paddr) { |
| break_dst_ring = true; |
| goto next_entry; |
| } |
| } |
| |
| rx_mon_stats->dest_ppdu_done++; |
| pmon->mon_ppdu_status = DP_PPDU_STATUS_START; |
| pmon->buf_state = DP_MON_STATUS_LAG; |
| pmon->mon_status_paddr = sw_mon_entries->mon_status_paddr; |
| pmon->hold_mon_dst_ring = true; |
| next_entry: |
| ring_entry = ath11k_hal_srng_dst_get_next_entry(ar->ab, |
| mon_dst_srng); |
| if (break_dst_ring) |
| break; |
| } |
| |
| ath11k_hal_srng_access_end(ar->ab, mon_dst_srng); |
| spin_unlock_bh(&pmon->mon_lock); |
| |
| if (rx_bufs_used) { |
| ath11k_dp_rxbufs_replenish(ar->ab, dp->mac_id, |
| &dp->rxdma_mon_buf_ring, |
| rx_bufs_used, |
| HAL_RX_BUF_RBM_SW3_BM); |
| } |
| |
| reap_status_ring: |
| quota = ath11k_dp_rx_process_full_mon_status_ring(ab, mac_id, |
| napi, budget); |
| |
| return quota; |
| } |
| |
| int ath11k_dp_rx_process_mon_rings(struct ath11k_base *ab, int mac_id, |
| struct napi_struct *napi, int budget) |
| { |
| struct ath11k *ar = ath11k_ab_to_ar(ab, mac_id); |
| int ret = 0; |
| |
| if (test_bit(ATH11K_FLAG_MONITOR_STARTED, &ar->monitor_flags) && |
| ab->hw_params.full_monitor_mode) |
| ret = ath11k_dp_full_mon_process_rx(ab, mac_id, napi, budget); |
| else |
| ret = ath11k_dp_rx_process_mon_status(ab, mac_id, napi, budget); |
| |
| return ret; |
| } |
| |
| static int ath11k_dp_rx_pdev_mon_status_attach(struct ath11k *ar) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = (struct ath11k_mon_data *)&dp->mon_data; |
| |
| skb_queue_head_init(&pmon->rx_status_q); |
| |
| pmon->mon_ppdu_status = DP_PPDU_STATUS_START; |
| |
| memset(&pmon->rx_mon_stats, 0, |
| sizeof(pmon->rx_mon_stats)); |
| return 0; |
| } |
| |
| int ath11k_dp_rx_pdev_mon_attach(struct ath11k *ar) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = &dp->mon_data; |
| struct hal_srng *mon_desc_srng = NULL; |
| struct dp_srng *dp_srng; |
| int ret = 0; |
| u32 n_link_desc = 0; |
| |
| ret = ath11k_dp_rx_pdev_mon_status_attach(ar); |
| if (ret) { |
| ath11k_warn(ar->ab, "pdev_mon_status_attach() failed"); |
| return ret; |
| } |
| |
| /* if rxdma1_enable is false, no need to setup |
| * rxdma_mon_desc_ring. |
| */ |
| if (!ar->ab->hw_params.rxdma1_enable) |
| return 0; |
| |
| dp_srng = &dp->rxdma_mon_desc_ring; |
| n_link_desc = dp_srng->size / |
| ath11k_hal_srng_get_entrysize(ar->ab, HAL_RXDMA_MONITOR_DESC); |
| mon_desc_srng = |
| &ar->ab->hal.srng_list[dp->rxdma_mon_desc_ring.ring_id]; |
| |
| ret = ath11k_dp_link_desc_setup(ar->ab, pmon->link_desc_banks, |
| HAL_RXDMA_MONITOR_DESC, mon_desc_srng, |
| n_link_desc); |
| if (ret) { |
| ath11k_warn(ar->ab, "mon_link_desc_pool_setup() failed"); |
| return ret; |
| } |
| pmon->mon_last_linkdesc_paddr = 0; |
| pmon->mon_last_buf_cookie = DP_RX_DESC_COOKIE_MAX + 1; |
| spin_lock_init(&pmon->mon_lock); |
| |
| return 0; |
| } |
| |
| static int ath11k_dp_mon_link_free(struct ath11k *ar) |
| { |
| struct ath11k_pdev_dp *dp = &ar->dp; |
| struct ath11k_mon_data *pmon = &dp->mon_data; |
| |
| ath11k_dp_link_desc_cleanup(ar->ab, pmon->link_desc_banks, |
| HAL_RXDMA_MONITOR_DESC, |
| &dp->rxdma_mon_desc_ring); |
| return 0; |
| } |
| |
| int ath11k_dp_rx_pdev_mon_detach(struct ath11k *ar) |
| { |
| ath11k_dp_mon_link_free(ar); |
| return 0; |
| } |
| |
| int ath11k_dp_rx_pktlog_start(struct ath11k_base *ab) |
| { |
| /* start reap timer */ |
| mod_timer(&ab->mon_reap_timer, |
| jiffies + msecs_to_jiffies(ATH11K_MON_TIMER_INTERVAL)); |
| |
| return 0; |
| } |
| |
| int ath11k_dp_rx_pktlog_stop(struct ath11k_base *ab, bool stop_timer) |
| { |
| int ret; |
| |
| if (stop_timer) |
| del_timer_sync(&ab->mon_reap_timer); |
| |
| /* reap all the monitor related rings */ |
| ret = ath11k_dp_purge_mon_ring(ab); |
| if (ret) { |
| ath11k_warn(ab, "failed to purge dp mon ring: %d\n", ret); |
| return ret; |
| } |
| |
| return 0; |
| } |