From patchwork Mon Sep 21 20:58:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 7234031 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A41339F32B for ; Mon, 21 Sep 2015 21:02:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id ADE2120821 for ; Mon, 21 Sep 2015 21:02:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B23572083E for ; Mon, 21 Sep 2015 21:02:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756355AbbIUVB7 (ORCPT ); Mon, 21 Sep 2015 17:01:59 -0400 Received: from paleale.coelho.fi ([176.9.41.70]:45719 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753072AbbIUU7J (ORCPT ); Mon, 21 Sep 2015 16:59:09 -0400 Received: from 91-157-79-26.elisa-laajakaista.fi ([91.157.79.26] helo=dubbel.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_CBC_SHA256:128) (Exim 4.86) (envelope-from ) id 1Ze8B1-0006Zh-4a; Mon, 21 Sep 2015 23:59:07 +0300 From: Luca Coelho To: linux-wireless@vger.kernel.org Cc: Emmanuel Grumbach , Luciano Coelho Date: Mon, 21 Sep 2015 23:58:43 +0300 Message-Id: <1442869141-31637-3-git-send-email-luca@coelho.fi> X-Mailer: git-send-email 2.5.1 In-Reply-To: <1442868938.27148.361.camel@coelho.fi> References: <1442868938.27148.361.camel@coelho.fi> X-SA-Exim-Connect-IP: 91.157.79.26 X-SA-Exim-Mail-From: luca@coelho.fi X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Subject: [PATCH 03/21] iwlwifi: mvm: add debugfs hook to send ECHO_CMD to the firmware X-SA-Exim-Version: 4.2.1 (built Mon, 06 Jul 2015 07:28:29 +0000) X-SA-Exim-Scanned: Yes (on farmhouse.coelho.fi) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Emmanuel Grumbach ECHO_CMD is a simple command that can be sent to the firmware just to check that it is alive. This command is useful for debug purpose, provide a debugfs hook to send it. Signed-off-by: Emmanuel Grumbach Signed-off-by: Luciano Coelho --- drivers/net/wireless/iwlwifi/mvm/debugfs.c | 15 +++++++++++++++ drivers/net/wireless/iwlwifi/mvm/fw-api.h | 1 + drivers/net/wireless/iwlwifi/mvm/ops.c | 1 + 3 files changed, 17 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index 08d2ae3..3b8481f 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -1361,11 +1361,25 @@ out: return count; } +static ssize_t +iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + int ret; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); + mutex_unlock(&mvm->mutex); + + return ret ?: count; +} + MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); /* Device wide debugfs entries */ MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); +MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); MVM_DEBUGFS_READ_FILE_OPS(nic_temp); @@ -1425,6 +1439,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); + MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); if (!debugfs_create_bool("enable_scan_iteration_notif", S_IRUSR | S_IWUSR, mvm->debugfs_dir, diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h index 4af7513a..cd293d2 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h @@ -100,6 +100,7 @@ enum iwl_mvm_tx_fifo { enum { MVM_ALIVE = 0x1, REPLY_ERROR = 0x2, + ECHO_CMD = 0x3, INIT_COMPLETE_NOTIF = 0x4, diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index a37de3f..0092286 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -271,6 +271,7 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { static const char *const iwl_mvm_cmd_strings[REPLY_MAX + 1] = { CMD(MVM_ALIVE), CMD(REPLY_ERROR), + CMD(ECHO_CMD), CMD(INIT_COMPLETE_NOTIF), CMD(PHY_CONTEXT_CMD), CMD(MGMT_MCAST_KEY),