From patchwork Fri Mar 4 11:21:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 548725 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3561C433EF for ; Fri, 4 Mar 2022 11:21:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239294AbiCDLW3 (ORCPT ); Fri, 4 Mar 2022 06:22:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239279AbiCDLW2 (ORCPT ); Fri, 4 Mar 2022 06:22:28 -0500 Received: from farmhouse.coelho.fi (paleale.coelho.fi [176.9.41.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9166F1B0BC6 for ; Fri, 4 Mar 2022 03:21:40 -0800 (PST) Received: from 91-156-4-241.elisa-laajakaista.fi ([91.156.4.241] helo=kveik.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1nQ608-000QSW-81; Fri, 04 Mar 2022 13:21:38 +0200 From: Luca Coelho To: kvalo@kernel.org Cc: luca@coelho.fi, linux-wireless@vger.kernel.org Date: Fri, 4 Mar 2022 13:21:20 +0200 Message-Id: X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220304112129.219513-1-luca@coelho.fi> References: <20220304112129.219513-1-luca@coelho.fi> MIME-Version: 1.0 Subject: [PATCH 04/13] iwlwifi: mvm: remove cipher scheme support Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg There are no shipping firmware versions with this, and there will also not be in the future, so remove the support. Signed-off-by: Johannes Berg Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/file.h | 28 ------------------ drivers/net/wireless/intel/iwlwifi/fw/img.h | 12 -------- drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 28 ------------------ .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 29 +------------------ drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 1 - 5 files changed, 1 insertion(+), 97 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h index fa2a73ae4183..35e4adb7006f 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/file.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h @@ -518,34 +518,6 @@ enum iwl_fw_phy_cfg { FW_PHY_CFG_SHARED_CLK = BIT(31), }; -#define IWL_UCODE_MAX_CS 1 - -/** - * struct iwl_fw_cipher_scheme - a cipher scheme supported by FW. - * @cipher: a cipher suite selector - * @flags: cipher scheme flags (currently reserved for a future use) - * @hdr_len: a size of MPDU security header - * @pn_len: a size of PN - * @pn_off: an offset of pn from the beginning of the security header - * @key_idx_off: an offset of key index byte in the security header - * @key_idx_mask: a bit mask of key_idx bits - * @key_idx_shift: bit shift needed to get key_idx - * @mic_len: mic length in bytes - * @hw_cipher: a HW cipher index used in host commands - */ -struct iwl_fw_cipher_scheme { - __le32 cipher; - u8 flags; - u8 hdr_len; - u8 pn_len; - u8 pn_off; - u8 key_idx_off; - u8 key_idx_mask; - u8 key_idx_shift; - u8 mic_len; - u8 hw_cipher; -} __packed; - enum iwl_fw_dbg_reg_operator { CSR_ASSIGN, CSR_SETBIT, diff --git a/drivers/net/wireless/intel/iwlwifi/fw/img.h b/drivers/net/wireless/intel/iwlwifi/fw/img.h index 89869edb23e8..f878ac508801 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/img.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/img.h @@ -133,16 +133,6 @@ struct iwl_fw_paging { u32 fw_offs; }; -/** - * struct iwl_fw_cscheme_list - a cipher scheme list - * @size: a number of entries - * @cs: cipher scheme entries - */ -struct iwl_fw_cscheme_list { - u8 size; - struct iwl_fw_cipher_scheme cs[]; -} __packed; - /** * enum iwl_fw_type - iwlwifi firmware type * @IWL_FW_DVM: DVM firmware @@ -197,7 +187,6 @@ struct iwl_dump_exclude { * @inst_evtlog_size: event log size for runtime ucode. * @inst_errlog_ptr: error log offfset for runtime ucode. * @type: firmware type (&enum iwl_fw_type) - * @cipher_scheme: optional external cipher scheme. * @human_readable: human readable version * we get the ALIVE from the uCode * @phy_integration_ver: PHY integration version string @@ -228,7 +217,6 @@ struct iwl_fw { enum iwl_fw_type type; - struct iwl_fw_cipher_scheme cs[IWL_UCODE_MAX_CS]; u8 human_readable[FW_VER_HUMAN_READABLE_SZ]; struct iwl_fw_dbg dbg; diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index f92bcab5fdf6..8bb4f54d9b38 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -324,30 +324,6 @@ static void set_sec_offset(struct iwl_firmware_pieces *pieces, pieces->img[type].sec[sec].offset = offset; } -static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) -{ - int i, j; - const struct iwl_fw_cscheme_list *l = - (const struct iwl_fw_cscheme_list *)data; - const struct iwl_fw_cipher_scheme *fwcs; - - if (len < sizeof(*l) || - len < sizeof(l->size) + l->size * sizeof(l->cs[0])) - return -EINVAL; - - for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { - fwcs = &l->cs[j]; - - /* we skip schemes with zero cipher suite selector */ - if (!fwcs->cipher) - continue; - - fw->cs[j++] = *fwcs; - } - - return 0; -} - /* * Gets uCode section from tlv. */ @@ -926,10 +902,6 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, return -EINVAL; } break; - case IWL_UCODE_TLV_CSCHEME: - if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) - goto invalid_tlv_len; - break; case IWL_UCODE_TLV_N_SCAN_CHANNELS: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 2ce09e58e74c..81d02a17dfe4 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -448,28 +448,6 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) hw->wiphy->n_cipher_suites++; } - /* 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; - - 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++; - } - if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { wiphy_ext_feature_set(hw->wiphy, @@ -3744,12 +3722,7 @@ static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, /* support HW crypto on TX */ return 0; default: - /* currently FW supports only one optional cipher scheme */ - if (hw->n_cipher_schemes && - hw->cipher_schemes->cipher == key->cipher) - key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; - else - return -EOPNOTSUPP; + return -EOPNOTSUPP; } switch (cmd) { diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index ecfe322ebef2..7c6802f92ef7 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1075,7 +1075,6 @@ struct iwl_mvm { u32 ciphers[IWL_MVM_NUM_CIPHERS]; - struct ieee80211_cipher_scheme cs[IWL_UCODE_MAX_CS]; struct cfg80211_ftm_responder_stats ftm_resp_stats; struct {