public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
linux/drivers/net/wireless/ath/ath12k/dp_rx.h
Kang Yang 72bfbf19b7 wifi: ath12k: add support to reap and process mon dest ring 
WCN7850 uses error dst ring as mon dest ring. Each time hardware
receives a packet, will fill the payload into mon dest ring.

The mon dest ring may store many MSDUs, which belonged to different
MPDUs. Need to retrieve MSDUs based on the PPDU ID, only processing the
MSDUs with same PPDU ID each time.

The PPDU ID is used in cycles,  the difference between the PPDU IDs
of the two rings must be checked. If the status PPDU ID minus the
dest PPDU ID is greater than 20000, it is considered a wrap-around
case.

After reaping the mon dest ring, should prepare packet and deliver it to
mac80211 when status PPDU ID is equal to dest PPDU ID. Then start to
process next PPDU if exists.

But if dest PPDU ID > status PPDU ID, should hold on to mon dest ring
processing. If it exceeds 16 consecutive times, status PPDU ID will be
forcibly set to dest PPDU ID to avoid backpressure issue.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1

Signed-off-by: Kang Yang <kang.yang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20250421023444.1778-11-kang.yang@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-05-16 12:38:55 -07:00

177 lines
5.4 KiB
C
Raw Permalink Blame History

/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef ATH12K_DP_RX_H
#define ATH12K_DP_RX_H
#include "core.h"
#include "rx_desc.h"
#include "debug.h"
#define DP_MAX_NWIFI_HDR_LEN 30
struct ath12k_dp_rx_tid {
u8 tid;
u32 ba_win_sz;
bool active;
struct ath12k_reoq_buf qbuf;
/* Info related to rx fragments */
u32 cur_sn;
u16 last_frag_no;
u16 rx_frag_bitmap;
struct sk_buff_head rx_frags;
struct hal_reo_dest_ring *dst_ring_desc;
/* Timer info related to fragments */
struct timer_list frag_timer;
struct ath12k_base *ab;
};
struct ath12k_dp_rx_reo_cache_flush_elem {
struct list_head list;
struct ath12k_dp_rx_tid data;
unsigned long ts;
};
struct ath12k_dp_rx_reo_cmd {
struct list_head list;
struct ath12k_dp_rx_tid data;
int cmd_num;
void (*handler)(struct ath12k_dp *dp, void *ctx,
enum hal_reo_cmd_status status);
};
#define ATH12K_DP_RX_REO_DESC_FREE_THRES 64
#define ATH12K_DP_RX_REO_DESC_FREE_TIMEOUT_MS 1000
enum ath12k_dp_rx_decap_type {
DP_RX_DECAP_TYPE_RAW,
DP_RX_DECAP_TYPE_NATIVE_WIFI,
DP_RX_DECAP_TYPE_ETHERNET2_DIX,
DP_RX_DECAP_TYPE_8023,
};
struct ath12k_dp_rx_rfc1042_hdr {
u8 llc_dsap;
u8 llc_ssap;
u8 llc_ctrl;
u8 snap_oui[3];
__be16 snap_type;
} __packed;
struct ath12k_dp_rx_info {
struct ieee80211_rx_status *rx_status;
u32 phy_meta_data;
u16 peer_id;
u8 decap_type;
u8 pkt_type;
u8 sgi;
u8 rate_mcs;
u8 bw;
u8 nss;
u8 addr2[ETH_ALEN];
u8 tid;
bool ip_csum_fail;
bool l4_csum_fail;
bool is_mcbc;
bool addr2_present;
};
static inline u32 ath12k_he_gi_to_nl80211_he_gi(u8 sgi)
{
u32 ret = 0;
switch (sgi) {
case RX_MSDU_START_SGI_0_8_US:
ret = NL80211_RATE_INFO_HE_GI_0_8;
break;
case RX_MSDU_START_SGI_1_6_US:
ret = NL80211_RATE_INFO_HE_GI_1_6;
break;
case RX_MSDU_START_SGI_3_2_US:
ret = NL80211_RATE_INFO_HE_GI_3_2;
break;
default:
ret = NL80211_RATE_INFO_HE_GI_0_8;
break;
}
return ret;
}
int ath12k_dp_rx_ampdu_start(struct ath12k *ar,
struct ieee80211_ampdu_params *params,
u8 link_id);
int ath12k_dp_rx_ampdu_stop(struct ath12k *ar,
struct ieee80211_ampdu_params *params,
u8 link_id);
int ath12k_dp_rx_peer_pn_replay_config(struct ath12k_link_vif *arvif,
const u8 *peer_addr,
enum set_key_cmd key_cmd,
struct ieee80211_key_conf *key);
void ath12k_dp_rx_peer_tid_cleanup(struct ath12k *ar, struct ath12k_peer *peer);
void ath12k_dp_rx_peer_tid_delete(struct ath12k *ar,
struct ath12k_peer *peer, u8 tid);
int ath12k_dp_rx_peer_tid_setup(struct ath12k *ar, const u8 *peer_mac, int vdev_id,
u8 tid, u32 ba_win_sz, u16 ssn,
enum hal_pn_type pn_type);
void ath12k_dp_htt_htc_t2h_msg_handler(struct ath12k_base *ab,
struct sk_buff *skb);
int ath12k_dp_rx_pdev_reo_setup(struct ath12k_base *ab);
void ath12k_dp_rx_pdev_reo_cleanup(struct ath12k_base *ab);
int ath12k_dp_rx_htt_setup(struct ath12k_base *ab);
int ath12k_dp_rx_alloc(struct ath12k_base *ab);
void ath12k_dp_rx_free(struct ath12k_base *ab);
int ath12k_dp_rx_pdev_alloc(struct ath12k_base *ab, int pdev_idx);
void ath12k_dp_rx_pdev_free(struct ath12k_base *ab, int pdev_idx);
void ath12k_dp_rx_reo_cmd_list_cleanup(struct ath12k_base *ab);
void ath12k_dp_rx_process_reo_status(struct ath12k_base *ab);
int ath12k_dp_rx_process_wbm_err(struct ath12k_base *ab,
struct napi_struct *napi, int budget);
int ath12k_dp_rx_process_err(struct ath12k_base *ab, struct napi_struct *napi,
int budget);
int ath12k_dp_rx_process(struct ath12k_base *ab, int mac_id,
struct napi_struct *napi,
int budget);
int ath12k_dp_rx_bufs_replenish(struct ath12k_base *ab,
struct dp_rxdma_ring *rx_ring,
struct list_head *used_list,
int req_entries);
int ath12k_dp_rx_pdev_mon_attach(struct ath12k *ar);
int ath12k_dp_rx_peer_frag_setup(struct ath12k *ar, const u8 *peer_mac, int vdev_id);
u8 ath12k_dp_rx_h_l3pad(struct ath12k_base *ab,
struct hal_rx_desc *desc);
struct ath12k_peer *
ath12k_dp_rx_h_find_peer(struct ath12k_base *ab, struct sk_buff *msdu,
struct ath12k_dp_rx_info *rx_info);
u8 ath12k_dp_rx_h_decap_type(struct ath12k_base *ab,
struct hal_rx_desc *desc);
u32 ath12k_dp_rx_h_mpdu_err(struct ath12k_base *ab,
struct hal_rx_desc *desc);
void ath12k_dp_rx_h_ppdu(struct ath12k *ar, struct ath12k_dp_rx_info *rx_info);
int ath12k_dp_rxdma_ring_sel_config_qcn9274(struct ath12k_base *ab);
int ath12k_dp_rxdma_ring_sel_config_wcn7850(struct ath12k_base *ab);
int ath12k_dp_htt_tlv_iter(struct ath12k_base *ab, const void *ptr, size_t len,
int (*iter)(struct ath12k_base *ar, u16 tag, u16 len,
const void *ptr, void *data),
void *data);
void ath12k_dp_rx_h_fetch_info(struct ath12k_base *ab, struct hal_rx_desc *rx_desc,
struct ath12k_dp_rx_info *rx_info);
int ath12k_dp_rx_crypto_mic_len(struct ath12k *ar, enum hal_encrypt_type enctype);
u32 ath12k_dp_rxdesc_get_ppduid(struct ath12k_base *ab,
struct hal_rx_desc *rx_desc);
bool ath12k_dp_rxdesc_mpdu_valid(struct ath12k_base *ab,
struct hal_rx_desc *rx_desc);
int ath12k_dp_rx_link_desc_return(struct ath12k_base *ab,
struct ath12k_buffer_addr *buf_addr_info,
enum hal_wbm_rel_bm_act action);
bool ath12k_dp_rxdesc_mpdu_valid(struct ath12k_base *ab,
struct hal_rx_desc *rx_desc);
#endif /* ATH12K_DP_RX_H */
Reference in a new issue View git blame Copy permalink