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Commit 24ddddf3 authored by Johannes Berg's avatar Johannes Berg Committed by Luca Coelho
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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: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 60dec523

drivers/net/wireless/intel/iwlwifi/iwl-drv.c

+2 −14
Original line number Diff line number Diff line
@@ -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;

drivers/net/wireless/intel/iwlwifi/iwl-fw.h

+1 −2
Original line number Diff line number Diff line
@@ -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;

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

+16 −3
Original line number Diff line number Diff line
@@ -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++;

	}

drivers/net/wireless/intel/iwlwifi/mvm/mvm.h

+1 −0
Original line number Diff line number Diff line
@@ -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;