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iwlwifi: store cipher scheme independent of mac80211

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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 <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Johannes Berg 2016-06-21 12:34:36 +02:00 committed by Luca Coelho
parent 60dec5233c
commit 24ddddf367
4 changed files with 20 additions and 19 deletions
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16
drivers/net/wireless/intel/iwlwifi/iwl-drv.c
View File

@ -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;

3
drivers/net/wireless/intel/iwlwifi/iwl-fw.h
View File

@ -67,7 +67,6 @@
#ifndef __iwl_fw_h__
#define __iwl_fw_h__
#include <linux/types.h>
#include <net/mac80211.h>
#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;

19
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
View File

@ -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++;
}

1
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
View File

@ -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;