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author | John Crispin <john@phrozen.org> | 2018-08-02 08:44:29 +0200 |
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committer | John Crispin <john@phrozen.org> | 2018-09-26 16:35:33 +0200 |
commit | d9eefa7a7031543571d434693c7f984dfbdc990d (patch) | |
tree | 73ac027ccf6cdb6fd209a83e7e25c3d0472d46b4 /package/kernel/mac80211/patches/ath/972-ath10k_fix-crash-due-to-wrong-handling-of-peer_bw_rxnss_override-parameter.patch | |
parent | e9d92bf1e1af71ff19e4cdc753de3f65963c58a5 (diff) | |
download | upstream-d9eefa7a7031543571d434693c7f984dfbdc990d.tar.gz upstream-d9eefa7a7031543571d434693c7f984dfbdc990d.tar.bz2 upstream-d9eefa7a7031543571d434693c7f984dfbdc990d.zip |
mac80211: rebase ontop of v4.18.5
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'package/kernel/mac80211/patches/ath/972-ath10k_fix-crash-due-to-wrong-handling-of-peer_bw_rxnss_override-parameter.patch')
-rw-r--r-- | package/kernel/mac80211/patches/ath/972-ath10k_fix-crash-due-to-wrong-handling-of-peer_bw_rxnss_override-parameter.patch | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/ath/972-ath10k_fix-crash-due-to-wrong-handling-of-peer_bw_rxnss_override-parameter.patch b/package/kernel/mac80211/patches/ath/972-ath10k_fix-crash-due-to-wrong-handling-of-peer_bw_rxnss_override-parameter.patch new file mode 100644 index 0000000000..a7eb0a0d84 --- /dev/null +++ b/package/kernel/mac80211/patches/ath/972-ath10k_fix-crash-due-to-wrong-handling-of-peer_bw_rxnss_override-parameter.patch @@ -0,0 +1,144 @@ +From: Sebastian Gottschall <s.gottschall@dd-wrt.com> + +current handling of peer_bw_rxnss_override parameter is based on guessing the VHT160/8080 capability by rx rate. this is wrong and may lead +to a non initialized peer_bw_rxnss_override parameter which is required since VHT160 operation mode only supports 2x2 chainmasks in addition the original code +initialized the parameter with wrong masked values. +This patch uses the peer phymode and peer nss information for correct initialisation of the peer_bw_rxnss_override parameter. +if this peer information is not available, we initialize the parameter by minimum nss which is suggested by QCA as temporary workaround according +to the QCA sourcecodes. + +Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com> + +v2: remove debug messages +v3: apply some cosmetics, update documentation +v4: fix compile warning and truncate nss to maximum of 2x2 since current chipsets only support 2x2 at vht160 +v5: handle maximum nss for chipsets supportig vht160 with 1x1 only +v7: use more simple code variant and take care about hw/sw chainmask configuration +v8: fix some code style issues +v9: use SM/MS macros from code.h to simplify shift/mask handling +--- + drivers/net/wireless/ath/ath10k/mac.c | 54 +++++++++++++++++++-------- + drivers/net/wireless/ath/ath10k/wmi.c | 7 +--- + drivers/net/wireless/ath/ath10k/wmi.h | 14 ++++++- + 3 files changed, 52 insertions(+), 23 deletions(-) +--- a/drivers/net/wireless/ath/ath10k/mac.c ++++ b/drivers/net/wireless/ath/ath10k/mac.c +@@ -2466,7 +2466,7 @@ static void ath10k_peer_assoc_h_vht(stru + const u16 *vht_mcs_mask; + u8 ampdu_factor; + u8 max_nss, vht_mcs; +- int i; ++ int i, nss160; + + if (WARN_ON(ath10k_mac_vif_chan(vif, &def))) + return; +@@ -2526,23 +2526,45 @@ static void ath10k_peer_assoc_h_vht(stru + __le16_to_cpu(vht_cap->vht_mcs.tx_highest); + arg->peer_vht_rates.tx_mcs_set = ath10k_peer_assoc_h_vht_limit( + __le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map), vht_mcs_mask); ++ arg->peer_bw_rxnss_override = 0; ++ nss160 = 1; /* 1x1 default config for VHT160 */ + +- ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n", +- sta->addr, arg->peer_max_mpdu, arg->peer_flags); ++ /* only local 4x4 configuration do support 2x2 for VHT160, ++ * everything else must use 1x1 ++ */ + +- if (arg->peer_vht_rates.rx_max_rate && +- (sta->vht_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK)) { +- switch (arg->peer_vht_rates.rx_max_rate) { +- case 1560: +- /* Must be 2x2 at 160Mhz is all it can do. */ +- arg->peer_bw_rxnss_override = 2; +- break; +- case 780: +- /* Can only do 1x1 at 160Mhz (Long Guard Interval) */ +- arg->peer_bw_rxnss_override = 1; +- break; +- } ++ if (ar->cfg_rx_chainmask == 15) ++ nss160 = arg->peer_num_spatial_streams <= 2 ? 1 : 2; ++ ++ /* if peer provides 1x1 nss160 information using max rate ++ * vht information, we reduce local nss160 to 1x1. ++ * consider that it has been observed that some client ++ * devices provide zero here, no matter which transmission ++ * rate is possible. in that case the local nss configuration ++ * will be used at maxmimum configuration possible. (see above) ++ */ ++ ++ if (arg->peer_vht_rates.rx_max_rate == 780) ++ nss160 = 1; ++ ++ /* in case if peer is connected with vht160 or vht80+80, ++ * we need to properly adjust rxnss parameters otherwise ++ * firmware will raise a assert ++ */ ++ switch (arg->peer_phymode) { ++ case MODE_11AC_VHT80_80: ++ arg->peer_bw_rxnss_override = BW_NSS_FWCONF_80_80(nss160); ++ /* fall through */ ++ case MODE_11AC_VHT160: ++ arg->peer_bw_rxnss_override |= BW_NSS_FWCONF_160(nss160); ++ break; ++ default: ++ break; + } ++ ++ ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x peer_bw_rxnss_override 0x%x\n", ++ sta->addr, arg->peer_max_mpdu, arg->peer_flags, ++ arg->peer_bw_rxnss_override); + } + + static void ath10k_peer_assoc_h_qos(struct ath10k *ar, +@@ -2694,9 +2716,9 @@ static int ath10k_peer_assoc_prepare(str + ath10k_peer_assoc_h_crypto(ar, vif, sta, arg); + ath10k_peer_assoc_h_rates(ar, vif, sta, arg); + ath10k_peer_assoc_h_ht(ar, vif, sta, arg); ++ ath10k_peer_assoc_h_phymode(ar, vif, sta, arg); + ath10k_peer_assoc_h_vht(ar, vif, sta, arg); + ath10k_peer_assoc_h_qos(ar, vif, sta, arg); +- ath10k_peer_assoc_h_phymode(ar, vif, sta, arg); + + return 0; + } +--- a/drivers/net/wireless/ath/ath10k/wmi.c ++++ b/drivers/net/wireless/ath/ath10k/wmi.c +@@ -7231,12 +7231,7 @@ ath10k_wmi_peer_assoc_fill_10_4(struct a + struct wmi_10_4_peer_assoc_complete_cmd *cmd = buf; + + ath10k_wmi_peer_assoc_fill_10_2(ar, buf, arg); +- if (arg->peer_bw_rxnss_override) +- cmd->peer_bw_rxnss_override = +- __cpu_to_le32((arg->peer_bw_rxnss_override - 1) | +- BIT(PEER_BW_RXNSS_OVERRIDE_OFFSET)); +- else +- cmd->peer_bw_rxnss_override = 0; ++ cmd->peer_bw_rxnss_override = __cpu_to_le32(arg->peer_bw_rxnss_override); + } + + static int +--- a/drivers/net/wireless/ath/ath10k/wmi.h ++++ b/drivers/net/wireless/ath/ath10k/wmi.h +@@ -6306,7 +6306,19 @@ struct wmi_10_2_peer_assoc_complete_cmd + __le32 info0; /* WMI_PEER_ASSOC_INFO0_ */ + } __packed; + +-#define PEER_BW_RXNSS_OVERRIDE_OFFSET 31 ++#define BW_NSS_FWCONF_MAP_ENABLE BIT(31) ++#define BW_NSS_FWCONF_MAP_160MHZ_LSB (0) ++#define BW_NSS_FWCONF_MAP_160MHZ_MASK (0x00000007) ++#define BW_NSS_FWCONF_MAP_80_80MHZ_LSB (3) ++#define BW_NSS_FWCONF_MAP_80_80MHZ_MASK (0x00000038) ++#define BW_NSS_FWCONF_MAP_MASK (0x0000003F) ++ ++#define GET_BW_NSS_FWCONF_160(x) (MS(x, BW_NSS_FWCONF_MAP_160MHZ) + 1) ++#define GET_BW_NSS_FWCONF_80_80(x) (MS(x, BW_NSS_FWCONF_MAP_80_80MHZ) + 1) ++ ++/* Values defined to set 160 MHz Bandwidth NSS Mapping into FW*/ ++#define BW_NSS_FWCONF_160(x) (BW_NSS_FWCONF_MAP_ENABLE | SM(x - 1, BW_NSS_FWCONF_MAP_160MHZ)) ++#define BW_NSS_FWCONF_80_80(x) (BW_NSS_FWCONF_MAP_ENABLE | SM(x - 1, BW_NSS_FWCONF_MAP_80_80MHZ)) + + struct wmi_10_4_peer_assoc_complete_cmd { + struct wmi_10_2_peer_assoc_complete_cmd cmd; |