Return-path: Received: from glaubenleben.de ([85.214.105.140]:57589 "EHLO glaubenleben.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752043AbcAFVSE (ORCPT ); Wed, 6 Jan 2016 16:18:04 -0500 From: Andreas Kemnade To: Kalle Valo , libertas-dev@lists.infradead.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Andreas Kemnade Subject: [PATCH 2/6] wireless:libertas: check whether bus can do more than polling Date: Wed, 6 Jan 2016 22:08:10 +0100 Message-Id: <1452114494-6451-3-git-send-email-andreas@kemnade.info> (sfid-20160106_221819_091545_305D053C) In-Reply-To: <1452114494-6451-1-git-send-email-andreas@kemnade.info> References: <1452114494-6451-1-git-send-email-andreas@kemnade.info> Sender: linux-wireless-owner@vger.kernel.org List-ID: If a sdio host does not support sdio irqs, polling is used instead. That has an impact on performance. Some functionality should not be enabled then. This add a variable in libertas_priv to indicate that. Signed-off-by: Andreas Kemnade --- drivers/net/wireless/libertas/dev.h | 1 + drivers/net/wireless/libertas/if_sdio.c | 2 +- drivers/net/wireless/libertas/if_usb.c | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h index 6bd1608..edf710b 100644 --- a/drivers/net/wireless/libertas/dev.h +++ b/drivers/net/wireless/libertas/dev.h @@ -99,6 +99,7 @@ struct lbs_private { /* Hardware access */ void *card; bool iface_running; + u8 is_polling; /* host has to poll the card irq */ u8 fw_ready; u8 surpriseremoved; u8 setup_fw_on_resume; diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index f1f31a2..13db8b5 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -1271,7 +1271,7 @@ static int if_sdio_probe(struct sdio_func *func, priv->reset_card = if_sdio_reset_card; priv->power_save = if_sdio_power_save; priv->power_restore = if_sdio_power_restore; - + priv->is_polling = !(func->card->host->caps & MMC_CAP_SDIO_IRQ); ret = if_sdio_power_on(card); if (ret) goto err_activate_card; diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index dff08a2..aba0c99 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -267,6 +267,7 @@ static int if_usb_probe(struct usb_interface *intf, priv->enter_deep_sleep = NULL; priv->exit_deep_sleep = NULL; priv->reset_deep_sleep_wakeup = NULL; + priv->is_polling = false; #ifdef CONFIG_OLPC if (machine_is_olpc()) priv->reset_card = if_usb_reset_olpc_card; -- 2.1.4