From 24ddddf3673b43708c9e7edc576b4d14a81a43e9 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 21 Jun 2016 12:34:36 +0200 Subject: [PATCH] iwlwifi: store cipher scheme independent of mac80211 In order to reduce reliance on mac80211 structs in the core iwlwifi code, store the cipher schemes in the format given by the firmware and convert it later, rather than storing it in the mac80211 format. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 16 ++-------------- drivers/net/wireless/intel/iwlwifi/iwl-fw.h | 3 +-- .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 19 ++++++++++++++++--- drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 1 + 4 files changed, 20 insertions(+), 19 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index e2df544cc64e..d675bf0a9e99 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -326,8 +326,6 @@ static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) int i, j; struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; struct iwl_fw_cipher_scheme *fwcs; - struct ieee80211_cipher_scheme *cs; - u32 cipher; if (len < sizeof(*l) || len < sizeof(l->size) + l->size * sizeof(l->cs[0])) @@ -335,22 +333,12 @@ static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { fwcs = &l->cs[j]; - cipher = le32_to_cpu(fwcs->cipher); /* we skip schemes with zero cipher suite selector */ - if (!cipher) + if (!fwcs->cipher) continue; - cs = &fw->cs[j++]; - cs->cipher = cipher; - cs->iftype = BIT(NL80211_IFTYPE_STATION); - cs->hdr_len = fwcs->hdr_len; - cs->pn_len = fwcs->pn_len; - cs->pn_off = fwcs->pn_off; - cs->key_idx_off = fwcs->key_idx_off; - cs->key_idx_mask = fwcs->key_idx_mask; - cs->key_idx_shift = fwcs->key_idx_shift; - cs->mic_len = fwcs->mic_len; + fw->cs[j++] = *fwcs; } return 0; diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-fw.h b/drivers/net/wireless/intel/iwlwifi/iwl-fw.h index 655ec52a0c03..74ea68d1063c 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-fw.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-fw.h @@ -67,7 +67,6 @@ #ifndef __iwl_fw_h__ #define __iwl_fw_h__ #include -#include #include "iwl-fw-file.h" #include "iwl-fw-error-dump.h" @@ -287,7 +286,7 @@ struct iwl_fw { enum iwl_fw_type type; - struct ieee80211_cipher_scheme cs[IWL_UCODE_MAX_CS]; + struct iwl_fw_cipher_scheme cs[IWL_UCODE_MAX_CS]; u8 human_readable[FW_VER_HUMAN_READABLE_SZ]; u32 sdio_adma_addr; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index e44c337e604e..73e49d3a8814 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -494,10 +494,23 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) /* currently FW API supports only one optional cipher scheme */ if (mvm->fw->cs[0].cipher) { + const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; + struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; + mvm->hw->n_cipher_schemes = 1; - mvm->hw->cipher_schemes = &mvm->fw->cs[0]; - mvm->ciphers[hw->wiphy->n_cipher_suites] = - mvm->fw->cs[0].cipher; + + cs->cipher = le32_to_cpu(fwcs->cipher); + cs->iftype = BIT(NL80211_IFTYPE_STATION); + cs->hdr_len = fwcs->hdr_len; + cs->pn_len = fwcs->pn_len; + cs->pn_off = fwcs->pn_off; + cs->key_idx_off = fwcs->key_idx_off; + cs->key_idx_mask = fwcs->key_idx_mask; + cs->key_idx_shift = fwcs->key_idx_shift; + cs->mic_len = fwcs->mic_len; + + mvm->hw->cipher_schemes = mvm->cs; + mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; hw->wiphy->n_cipher_suites++; } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index c440b10b3cde..b4fc86d5d7ef 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1012,6 +1012,7 @@ struct iwl_mvm { struct iwl_mvm_shared_mem_cfg shared_mem_cfg; u32 ciphers[IWL_MVM_NUM_CIPHERS]; + struct ieee80211_cipher_scheme cs[IWL_UCODE_MAX_CS]; struct iwl_mvm_tof_data tof_data; struct ieee80211_vif *nan_vif; -- 2.30.2