From patchwork Mon Dec 21 20:50:40 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emmanuel Grumbach X-Patchwork-Id: 7898111 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 3B492BEEE5 for ; Mon, 21 Dec 2015 20:52:41 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5C1492026C for ; Mon, 21 Dec 2015 20:52:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6234F205BB for ; Mon, 21 Dec 2015 20:52:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752057AbbLUUwi (ORCPT ); Mon, 21 Dec 2015 15:52:38 -0500 Received: from mga03.intel.com ([134.134.136.65]:53947 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752044AbbLUUwg (ORCPT ); Mon, 21 Dec 2015 15:52:36 -0500 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP; 21 Dec 2015 12:52:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,461,1444719600"; d="scan'208";a="621796613" Received: from aidesis-mobl2.ger.corp.intel.com (HELO egrumbacBOX.ger.corp.intel.com) ([10.255.206.60]) by FMSMGA003.fm.intel.com with ESMTP; 21 Dec 2015 12:52:35 -0800 From: Emmanuel Grumbach To: linux-wireless@vger.kernel.org Cc: Emmanuel Grumbach Subject: [PATCH 39/45] iwlwifi: mvm: dump more registers upon error Date: Mon, 21 Dec 2015 22:50:40 +0200 Message-Id: <1450731046-2796-39-git-send-email-emmanuel.grumbach@intel.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <0BA3FCBA62E2DC44AF3030971E174FB32E949792@hasmsx107.ger.corp.intel.com> References: <0BA3FCBA62E2DC44AF3030971E174FB32E949792@hasmsx107.ger.corp.intel.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP These registers can help to debug PHY issues. Since this adds a significant amount of work to the debug collection phase, dump the periphery registers only if the firmware is stopped. Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c | 29 ++++++++++++++----------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c index a6985da..29d54ec 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c @@ -349,6 +349,7 @@ static const struct { { .start = 0x00a04560, .end = 0x00a0457c }, { .start = 0x00a04590, .end = 0x00a04598 }, { .start = 0x00a045c0, .end = 0x00a045f4 }, + { .start = 0x00a44000, .end = 0x00a7bf80 }, }; static u32 iwl_dump_prph(struct iwl_trans *trans, @@ -400,7 +401,7 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) struct iwl_fw_error_dump_trigger_desc *dump_trig; struct iwl_mvm_dump_ptrs *fw_error_dump; u32 sram_len, sram_ofs; - u32 file_len, fifo_data_len = 0; + u32 file_len, fifo_data_len = 0, prph_len = 0; u32 smem_len = mvm->cfg->smem_len; u32 sram2_len = mvm->cfg->dccm2_len; bool monitor_dump_only = false; @@ -460,12 +461,24 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) sizeof(*dump_data) + sizeof(struct iwl_fw_error_dump_fifo); } + + /* Make room for PRPH registers */ + for (i = 0; i < ARRAY_SIZE(iwl_prph_dump_addr); i++) { + /* The range includes both boundaries */ + int num_bytes_in_chunk = iwl_prph_dump_addr[i].end - + iwl_prph_dump_addr[i].start + 4; + + prph_len += sizeof(*dump_data) + + sizeof(struct iwl_fw_error_dump_prph) + + num_bytes_in_chunk; + } } file_len = sizeof(*dump_file) + sizeof(*dump_data) * 2 + sram_len + sizeof(*dump_mem) + fifo_data_len + + prph_len + sizeof(*dump_info); /* Make room for the SMEM, if it exists */ @@ -489,17 +502,6 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) sizeof(*dump_info); } - /* Make room for PRPH registers */ - for (i = 0; i < ARRAY_SIZE(iwl_prph_dump_addr); i++) { - /* The range includes both boundaries */ - int num_bytes_in_chunk = iwl_prph_dump_addr[i].end - - iwl_prph_dump_addr[i].start + 4; - - file_len += sizeof(*dump_data) + - sizeof(struct iwl_fw_error_dump_prph) + - num_bytes_in_chunk; - } - /* * In 8000 HW family B-step include the ICCM (which resides separately) */ @@ -625,7 +627,8 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) } dump_data = iwl_fw_error_next_data(dump_data); - iwl_dump_prph(mvm->trans, &dump_data); + if (prph_len) + iwl_dump_prph(mvm->trans, &dump_data); dump_trans_data: fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans,