From 2ea9f12cefe4b6bf291e1717512b0ccb04bf71e9 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Mon, 25 Sep 2017 15:29:41 -0700 Subject: [PATCH] ath10k: add new cipher suite support QCA99x0 and QCA4019 family chips support CCMP-256, GCMP-128, and GCMP-256 ciphers in hardware, so advertise support for these. As firmware does not support group management frame ciphers (BIP), handle them in software (mac80211). Reviewed-by: Sebastian Gottschall Cc: Jouni Malinen Signed-off-by: Rajkumar Manoharan Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/core.c | 12 +++++++ drivers/net/wireless/ath/ath10k/hw.h | 3 ++ drivers/net/wireless/ath/ath10k/mac.c | 43 ++++++++++++++++++++++++-- drivers/net/wireless/ath/ath10k/wmi.h | 1 + 4 files changed, 57 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index 7cc426c41817..b29fdbd21ead 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -74,6 +74,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA9887_HW_1_0_VERSION, @@ -97,6 +98,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA6174_HW_2_1_VERSION, @@ -119,6 +121,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA6174_HW_2_1_VERSION, @@ -141,6 +144,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA6174_HW_3_0_VERSION, @@ -163,6 +167,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA6174_HW_3_2_VERSION, @@ -188,6 +193,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA99X0_HW_2_0_DEV_VERSION, @@ -216,6 +222,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 4, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 11, }, { .id = QCA9984_HW_1_0_DEV_VERSION, @@ -249,6 +256,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { */ .vht160_mcs_rx_highest = 1560, .vht160_mcs_tx_highest = 1560, + .n_cipher_suites = 11, }, { .id = QCA9888_HW_2_0_DEV_VERSION, @@ -281,6 +289,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { */ .vht160_mcs_rx_highest = 780, .vht160_mcs_tx_highest = 780, + .n_cipher_suites = 11, }, { .id = QCA9377_HW_1_0_DEV_VERSION, @@ -303,6 +312,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA9377_HW_1_1_DEV_VERSION, @@ -327,6 +337,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 0, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 8, }, { .id = QCA4019_HW_1_0_DEV_VERSION, @@ -356,6 +367,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = { .spectral_bin_discard = 4, .vht160_mcs_rx_highest = 0, .vht160_mcs_tx_highest = 0, + .n_cipher_suites = 11, }, }; diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index f80840fae517..05f26e5858ad 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -550,6 +550,9 @@ struct ath10k_hw_params { */ int vht160_mcs_rx_highest; int vht160_mcs_tx_highest; + + /* Number of ciphers supported (i.e First N) in cipher_suites array */ + int n_cipher_suites; }; struct htt_rx_desc; diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 10fb83784832..6dbf8a2453ba 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -242,6 +242,16 @@ static int ath10k_send_key(struct ath10k_vif *arvif, case WLAN_CIPHER_SUITE_WEP104: arg.key_cipher = WMI_CIPHER_WEP; break; + case WLAN_CIPHER_SUITE_CCMP_256: + arg.key_cipher = WMI_CIPHER_AES_CCM; + break; + case WLAN_CIPHER_SUITE_GCMP: + case WLAN_CIPHER_SUITE_GCMP_256: + arg.key_cipher = WMI_CIPHER_AES_GCM; + break; + case WLAN_CIPHER_SUITE_BIP_GMAC_128: + case WLAN_CIPHER_SUITE_BIP_GMAC_256: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: case WLAN_CIPHER_SUITE_AES_CMAC: WARN_ON(1); return -EINVAL; @@ -5723,7 +5733,10 @@ static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, u32 flags2; /* this one needs to be done in software */ - if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) + if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || + key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || + key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 || + key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256) return 1; if (arvif->nohwcrypt) @@ -8074,7 +8087,22 @@ int ath10k_mac_register(struct ath10k *ar) WLAN_CIPHER_SUITE_WEP104, WLAN_CIPHER_SUITE_TKIP, WLAN_CIPHER_SUITE_CCMP, + + /* Do not add hardware supported ciphers before this line. + * Allow software encryption for all chips. Don't forget to + * update n_cipher_suites below. + */ WLAN_CIPHER_SUITE_AES_CMAC, + WLAN_CIPHER_SUITE_BIP_CMAC_256, + WLAN_CIPHER_SUITE_BIP_GMAC_128, + WLAN_CIPHER_SUITE_BIP_GMAC_256, + + /* Only QCA99x0 and QCA4019 varients support GCMP-128, GCMP-256 + * and CCMP-256 in hardware. + */ + WLAN_CIPHER_SUITE_GCMP, + WLAN_CIPHER_SUITE_GCMP_256, + WLAN_CIPHER_SUITE_CCMP_256, }; struct ieee80211_supported_band *band; void *channels; @@ -8318,7 +8346,18 @@ int ath10k_mac_register(struct ath10k *ar) } ar->hw->wiphy->cipher_suites = cipher_suites; - ar->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); + + /* QCA988x and QCA6174 family chips do not support CCMP-256, GCMP-128 + * and GCMP-256 ciphers in hardware. Fetch number of ciphers supported + * from chip specific hw_param table. + */ + if (!ar->hw_params.n_cipher_suites || + ar->hw_params.n_cipher_suites > ARRAY_SIZE(cipher_suites)) { + ath10k_err(ar, "invalid hw_params.n_cipher_suites %d\n", + ar->hw_params.n_cipher_suites); + ar->hw_params.n_cipher_suites = 8; + } + ar->hw->wiphy->n_cipher_suites = ar->hw_params.n_cipher_suites; wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h index 7a3606dde227..c02b21cff38d 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.h +++ b/drivers/net/wireless/ath/ath10k/wmi.h @@ -4751,6 +4751,7 @@ struct wmi_key_seq_counter { #define WMI_CIPHER_WAPI 0x5 #define WMI_CIPHER_CKIP 0x6 #define WMI_CIPHER_AES_CMAC 0x7 +#define WMI_CIPHER_AES_GCM 0x8 struct wmi_vdev_install_key_cmd { __le32 vdev_id;