From patchwork Sat Oct 12 15:48:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 11186829 X-Patchwork-Delegate: luca@coelho.fi Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 585D019A2 for ; Sat, 12 Oct 2019 15:48:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 41089206CD for ; Sat, 12 Oct 2019 15:48:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729426AbfJLPss (ORCPT ); Sat, 12 Oct 2019 11:48:48 -0400 Received: from paleale.coelho.fi ([176.9.41.70]:48672 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729272AbfJLPss (ORCPT ); Sat, 12 Oct 2019 11:48:48 -0400 Received: from [91.156.6.193] (helo=redipa.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.92) (envelope-from ) id 1iJJdM-0005yf-UR; Sat, 12 Oct 2019 18:48:45 +0300 From: Luca Coelho To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org Date: Sat, 12 Oct 2019 18:48:24 +0300 Message-Id: <20191012184707.32c15e3f61c9.I65d0d5e782864f53b4ed8a6f43e72c50a09d9fd9@changeid> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191012154828.9249-1-luca@coelho.fi> References: <20191012154828.9249-1-luca@coelho.fi> MIME-Version: 1.0 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on farmhouse.coelho.fi X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Subject: [PATCH 12/16] iwlwifi: dbg_ini: support domain changing via debugfs Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Shahar S Matityahu Allow to change or read the debug domain bitmap at runtime via fw_dbg_domain debugfs. Signed-off-by: Shahar S Matityahu Signed-off-by: Luca Coelho --- .../net/wireless/intel/iwlwifi/fw/debugfs.c | 37 +++++++++++++++++++ .../net/wireless/intel/iwlwifi/iwl-trans.h | 5 +++ 2 files changed, 42 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c index c1aa4360736b..7f1d299e8b0a 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c @@ -320,10 +320,47 @@ static ssize_t iwl_dbgfs_send_hcmd_write(struct iwl_fw_runtime *fwrt, char *buf, FWRT_DEBUGFS_WRITE_FILE_OPS(send_hcmd, 512); +static ssize_t iwl_dbgfs_fw_dbg_domain_write(struct iwl_fw_runtime *fwrt, + char *buf, size_t count) +{ + u32 new_domain; + long val; + int ret; + + if (!iwl_trans_fw_running(fwrt->trans)) + return -EIO; + + ret = kstrtol(buf, 0, &val); + if (ret) + return ret; + + new_domain = (u32)val; + if (new_domain != fwrt->trans->dbg.domains_bitmap) { + ret = iwl_dbg_tlv_gen_active_trigs(fwrt, new_domain); + if (ret) + return ret; + + iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, + NULL); + } + + return count; +} + +static ssize_t iwl_dbgfs_fw_dbg_domain_read(struct iwl_fw_runtime *fwrt, + size_t size, char *buf) +{ + return scnprintf(buf, size, "0x%08x\n", + fwrt->trans->dbg.domains_bitmap); +} + +FWRT_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_domain, 20); + void iwl_fwrt_dbgfs_register(struct iwl_fw_runtime *fwrt, struct dentry *dbgfs_dir) { INIT_DELAYED_WORK(&fwrt->timestamp.wk, iwl_fw_timestamp_marker_wk); FWRT_DEBUGFS_ADD_FILE(timestamp_marker, dbgfs_dir, 0200); FWRT_DEBUGFS_ADD_FILE(send_hcmd, dbgfs_dir, 0200); + FWRT_DEBUGFS_ADD_FILE(fw_dbg_domain, dbgfs_dir, 0600); } diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h index 32e522991068..8cadad7364ac 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h @@ -1249,6 +1249,11 @@ static inline void iwl_trans_fw_error(struct iwl_trans *trans) iwl_op_mode_nic_error(trans->op_mode); } +static inline bool iwl_trans_fw_running(struct iwl_trans *trans) +{ + return trans->state == IWL_TRANS_FW_ALIVE; +} + static inline void iwl_trans_sync_nmi(struct iwl_trans *trans) { if (trans->ops->sync_nmi)