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Please, take a look at the cover letter for more details). Signed-off-by: Viktor Barna --- drivers/net/wireless/celeno/cl8k/rate_ctrl.c | 276 +++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 drivers/net/wireless/celeno/cl8k/rate_ctrl.c diff --git a/drivers/net/wireless/celeno/cl8k/rate_ctrl.c b/drivers/net/wir= eless/celeno/cl8k/rate_ctrl.c new file mode 100644 index 000000000000..960ca4ea4473 --- /dev/null +++ b/drivers/net/wireless/celeno/cl8k/rate_ctrl.c @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: MIT +/* Copyright(c) 2019-2021, Celeno Communications Ltd. */ + +#include "rate_ctrl.h" +#include "tx/tx.h" +#include "band.h" +#include "bf.h" +#include "fw/msg_tx.h" +#include "utils/utils.h" + +u32 cl_rate_ctrl_generate(struct cl_hw *cl_hw, struct cl_sta *cl_sta, + u8 mode, u8 bw, u8 nss, u8 mcs, u8 gi, + bool fallback_en) +{ + union cl_rate_ctrl_info rate_ctrl_info; + + rate_ctrl_info.word =3D 0; + + /* Format_mod + mcs_index */ + if (mode =3D=3D WRS_MODE_HE) { + rate_ctrl_info.field.mcs_index =3D (nss << 4) | mcs; + rate_ctrl_info.field.format_mod =3D FORMATMOD_HE_SU; + } else if (mode =3D=3D WRS_MODE_VHT) { + rate_ctrl_info.field.mcs_index =3D (nss << 4) | mcs; + rate_ctrl_info.field.format_mod =3D FORMATMOD_VHT; + } else if (mode =3D=3D WRS_MODE_HT) { + rate_ctrl_info.field.mcs_index =3D (nss << 3) | mcs; + rate_ctrl_info.field.format_mod =3D FORMATMOD_HT_MF; + } else if (mode =3D=3D WRS_MODE_OFDM) { + rate_ctrl_info.field.mcs_index =3D mcs + RATE_CTRL_OFFSET_O= FDM; + rate_ctrl_info.field.format_mod =3D + (bw =3D=3D CHNL_BW_20) ? FORMATMOD_NON_HT : FORMATM= OD_NON_HT_DUP_OFDM; + } else { /* WRS_MODE_CCK */ + rate_ctrl_info.field.mcs_index =3D mcs; + rate_ctrl_info.field.format_mod =3D FORMATMOD_NON_HT; + } + + /* Gi */ + rate_ctrl_info.field.gi =3D convert_gi_format_wrs_to_fw(mode, gi); + + /* Bw */ + rate_ctrl_info.field.bw =3D bw; + + /* Fallback */ + rate_ctrl_info.field.fallback =3D fallback_en; + + /* Tx_bf */ + if (cl_sta && cl_bf_is_on(cl_hw, cl_sta, nss)) + rate_ctrl_info.field.tx_bf =3D true; + + /* Pre_type/stbc */ + if (rate_ctrl_info.field.format_mod =3D=3D FORMATMOD_NON_HT) + rate_ctrl_info.field.pre_type_or_stbc =3D 1; + + return rate_ctrl_info.word; +} + +void cl_rate_ctrl_convert(union cl_rate_ctrl_info *rate_ctrl_info) +{ + u32 format_mod =3D rate_ctrl_info->field.format_mod; + + /* + * Convert gi from firmware format to driver format + * !!! Must be done before converting the format mode !!! + */ + rate_ctrl_info->field.gi =3D convert_gi_format_fw_to_wrs(format_mod= , + rate_ctrl_in= fo->field.gi); + + /* Convert format_mod from firmware format to WRS format */ + if (format_mod >=3D FORMATMOD_HE_SU) { + rate_ctrl_info->field.format_mod =3D WRS_MODE_HE; + } else if (format_mod =3D=3D FORMATMOD_VHT) { + rate_ctrl_info->field.format_mod =3D WRS_MODE_VHT; + } else if (format_mod >=3D FORMATMOD_HT_MF) { + rate_ctrl_info->field.format_mod =3D WRS_MODE_HT; + } else if (format_mod =3D=3D FORMATMOD_NON_HT_DUP_OFDM) { + rate_ctrl_info->field.format_mod =3D WRS_MODE_OFDM; + } else { + if (rate_ctrl_info->field.mcs_index >=3D RATE_CTRL_OFFSET_O= FDM) + rate_ctrl_info->field.format_mod =3D WRS_MODE_OFDM; + else + rate_ctrl_info->field.format_mod =3D WRS_MODE_CCK; + } +} + +void cl_rate_ctrl_parse(union cl_rate_ctrl_info *rate_ctrl_info, u8 *nss, = u8 *mcs) +{ + switch (rate_ctrl_info->field.format_mod) { + case WRS_MODE_HE: + case WRS_MODE_VHT: + *nss =3D (rate_ctrl_info->field.mcs_index >> 4); + *mcs =3D (rate_ctrl_info->field.mcs_index & 0xF); + break; + case WRS_MODE_HT: + *nss =3D (rate_ctrl_info->field.mcs_index >> 3); + *mcs =3D (rate_ctrl_info->field.mcs_index & 0x7); + break; + case WRS_MODE_OFDM: + *nss =3D 0; + *mcs =3D rate_ctrl_info->field.mcs_index - RATE_CTRL_OFFSET= _OFDM; + break; + case WRS_MODE_CCK: + *nss =3D 0; + *mcs =3D rate_ctrl_info->field.mcs_index; + break; + default: + *nss =3D *mcs =3D 0; + } +} + +void cl_rate_ctrl_set_default(struct cl_hw *cl_hw) +{ + u32 rate_ctrl =3D 0; + union cl_rate_ctrl_info_he rate_ctrl_he; + + /* HE default */ + rate_ctrl_he.word =3D 0; + rate_ctrl_he.field.spatial_conf =3D RATE_CNTRL_HE_SPATIAL_CONF_DEF; + rate_ctrl =3D cl_rate_ctrl_generate(cl_hw, NULL, WRS_MODE_HE, + 0, 0, 0, 0, false); + + cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl, 0, 0, + RATE_OP_MODE_DEFAULT_HE, LTF_X4, 0, rate_c= trl_he.word); + + /* OFDM default */ + rate_ctrl =3D cl_rate_ctrl_generate(cl_hw, NULL, WRS_MODE_OFDM, 0, = 0, + cl_hw->conf->ce_default_mcs_ofdm,= 0, false); + + cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl, 0, 0, + RATE_OP_MODE_DEFAULT_OFDM, 0, 0, 0); + + /* CCK default */ + if (cl_band_is_24g(cl_hw)) { + rate_ctrl =3D cl_rate_ctrl_generate(cl_hw, NULL, WRS_MODE_C= CK, 0, 0, + cl_hw->conf->ce_default_m= cs_cck, 0, false); + + cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl, 0, 0, + RATE_OP_MODE_DEFAULT_CCK, 0, 0, 0)= ; + } +} + +void cl_rate_ctrl_set_default_per_he_minrate(struct cl_hw *cl_hw, u8 bw, + u8 nss, u8 mcs, u8 gi) +{ + union cl_rate_ctrl_info_he rate_ctrl_he; + u32 rate_ctrl =3D 0; + u8 ltf =3D cl_map_gi_to_ltf(WRS_MODE_HE, gi); + + rate_ctrl_he.word =3D 0; + rate_ctrl_he.field.spatial_conf =3D RATE_CNTRL_HE_SPATIAL_CONF_DEF; + rate_ctrl =3D cl_rate_ctrl_generate(cl_hw, NULL, WRS_MODE_HE, bw, + nss, mcs, gi, false); + + cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl, 0, 0, + RATE_OP_MODE_DEFAULT_HE, ltf, + 0, rate_ctrl_he.word); + + cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl, 0, 0, + RATE_OP_MODE_MCAST, ltf, 0, 0); + + cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl, 0, 0, + RATE_OP_MODE_BCAST, ltf, 0, 0); +} + +bool cl_rate_ctrl_set_mcast(struct cl_hw *cl_hw, u8 mode, u8 mcs) +{ + u32 rate_ctrl_mcast =3D cl_rate_ctrl_generate(cl_hw, NULL, mode, 0,= 0, mcs, + WRS_GI_LONG, false); + u8 ltf =3D cl_map_gi_to_ltf(mode, WRS_GI_LONG); + + if (cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl_mcast, 0, 0, + RATE_OP_MODE_MCAST, ltf, 0, 0)) + return false; + + return true; +} + +bool cl_rate_ctrl_set_fixed(struct cl_hw *cl_hw, u32 rate_ctrl_he, u8 mode= , u8 mcs, u8 nss, + u8 bw, u8 gi, u8 ltf_field) +{ + u32 rate_ctrl_fixed =3D cl_rate_ctrl_generate(cl_hw, NULL, mode, bw= , nss, + mcs, gi, false); + + if (cl_msg_tx_update_rate_dl(cl_hw, 0xff, rate_ctrl_fixed, 0, bw, R= ATE_OP_MODE_FIXED, + ltf_field, 0, rate_ctrl_he)) + return false; + + return true; +} + +bool cl_rate_ctrl_set_dbgfs(struct cl_hw *cl_hw, u8 sta_idx, u32 rate_ctrl= , u32 rate_ctrl_he, + u8 op_mode, u8 bw, u8 ltf_field) +{ + /* + * op_mode can be RATE_OP_MODE_FIXED or RATE_OP_MODE_STA_MU. + * Therefore rate_fallback should be 0. + */ + if (cl_msg_tx_update_rate_dl(cl_hw, sta_idx, rate_ctrl, 0, bw, op_m= ode, + ltf_field, 0, rate_ctrl_he)) + return false; + + return true; +} + +void cl_rate_ctrl_set_ate_agg(struct cl_hw *cl_hw, struct cl_sta *cl_sta) +{ + struct cl_ate_db *ate_db =3D &cl_hw->ate_db; + union cl_rate_ctrl_info rate_ctrl; + union cl_rate_ctrl_info_he rate_ctrl_he; + u8 ltf_mode =3D cl_map_gi_to_ltf(ate_db->mode, ate_db->gi); + u8 sta_idx =3D cl_sta->sta_idx; + + rate_ctrl_he.word =3D 0; + rate_ctrl_he.field.spatial_conf =3D RATE_CNTRL_HE_SPATIAL_CONF_DEF; + + rate_ctrl.word =3D cl_rate_ctrl_generate(cl_hw, cl_sta, ate_db->mod= e, ate_db->bw, + ate_db->nss, ate_db->mcs, at= e_db->gi, false); + + cl_msg_tx_update_rate_dl(cl_hw, sta_idx, rate_ctrl.word, 0, ate_db-= >bw, + RATE_OP_MODE_STA_SU, ltf_mode, 0, rate_ctr= l_he.word); +} + +static u8 cl_rate_ctrl_get_min(struct cl_hw *cl_hw) +{ + if (cl_hw->conf->ci_min_he_en && + cl_hw->conf->ce_wireless_mode =3D=3D WIRELESS_MODE_HE) + return RATE_CTRL_ENTRY_MIN_HE; + + if (cl_hw_mode_is_b_or_bg(cl_hw)) + return RATE_CTRL_ENTRY_MIN_CCK; + + return RATE_CTRL_ENTRY_MIN_OFDM; +} + +void cl_rate_ctrl_update_desc_single(struct cl_hw *cl_hw, struct tx_host_i= nfo *info, + struct cl_sw_txhdr *sw_txhdr) +{ + struct ieee80211_hdr *mac_hdr =3D sw_txhdr->hdr80211; + struct ieee80211_tx_info *tx_info =3D IEEE80211_SKB_CB(sw_txhdr->sk= b); + bool is_data =3D ieee80211_is_data(sw_txhdr->fc); + + if (sw_txhdr->cl_sta && is_data) { + if (cl_tx_ctrl_is_eapol(tx_info)) { + info->rate_ctrl_entry =3D cl_rate_ctrl_get_min(cl_h= w); + } else { + if (cl_hw->entry_fixed_rate) + info->rate_ctrl_entry =3D RATE_CTRL_ENTRY_F= IXED_RATE; + else + info->rate_ctrl_entry =3D RATE_CTRL_ENTRY_S= TA; + } + } else { + if (sw_txhdr->is_bcn) { + info->rate_ctrl_entry =3D cl_rate_ctrl_get_min(cl_h= w); + } else if (is_multicast_ether_addr(mac_hdr->addr1) && + !is_broadcast_ether_addr(mac_hdr->addr1)) { + info->rate_ctrl_entry =3D RATE_CTRL_ENTRY_MCAST; + } else if (is_broadcast_ether_addr(mac_hdr->addr1) && + !cl_hw->entry_fixed_rate) { + info->rate_ctrl_entry =3D RATE_CTRL_ENTRY_BCAST; + } else { + if (cl_hw->entry_fixed_rate && is_data) + info->rate_ctrl_entry =3D RATE_CTRL_ENTRY_F= IXED_RATE; + else + info->rate_ctrl_entry =3D cl_rate_ctrl_get_= min(cl_hw); + } + } +} + +void cl_rate_ctrl_update_desc_agg(struct cl_hw *cl_hw, struct tx_host_info= *info) +{ + /* For aggregation there are only two options - STA and FIXED_RATE = */ + if (cl_hw->entry_fixed_rate) + info->rate_ctrl_entry =3D RATE_CTRL_ENTRY_FIXED_RATE; + else + info->rate_ctrl_entry =3D RATE_CTRL_ENTRY_STA; +} -- 2.30.0 ________________________________ The information transmitted is intended only for the person or entity to wh= ich it is addressed and may contain confidential and/or privileged material= . Any retransmission, dissemination, copying or other use of, or taking of = any action in reliance upon this information is prohibited. If you received= this in error, please contact the sender and delete the material from any = computer. Nothing contained herein shall be deemed as a representation, war= ranty or a commitment by Celeno. No warranties are expressed or implied, in= cluding, but not limited to, any implied warranties of non-infringement, me= rchantability and fitness for a particular purpose. ________________________________