From patchwork Fri Nov 17 09:44:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 13458675 X-Patchwork-Delegate: kvalo@adurom.com 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 40D29C072A2 for ; Fri, 17 Nov 2023 09:48:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345742AbjKQJsd (ORCPT ); Fri, 17 Nov 2023 04:48:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34950 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235784AbjKQJsH (ORCPT ); Fri, 17 Nov 2023 04:48:07 -0500 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55D7D2709; Fri, 17 Nov 2023 01:45:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700214326; x=1731750326; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AsU8Bf1+aKF4Ygw/JW3TR4w1gS204nj0qrDxLy53Snw=; b=im9rMFCLMkRKEUCgv4Vy4Zza+hqhr34G6//7uWmhEehF/nT09E4u9QBP 0Tis+Uxr9TKs0/ZleuQ5rzi8L6IMOWJs7ABy/OJyVbyRWI9CtsMxu73IW zHT4LjucUlhSpX/X71WJDBeJyA8i20dqB6qma9l/YhyOKxbjdcDuYfN1F qVudkkBaWyn6Pg9xx7YZpJ12ZwwBWoD4xRlWXc+eGcJr0rWMnxXkWp+pc 61/rERi84bmGuy97HY8xlzDZyyjjh533ehLvOaAhJA1uVf6QZK2hmPZw0 HKOteVtS2OP6tenuclLYOX6+ca7Faou7s10J5lvnpwWhOwnSc+PmhI3c3 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10896"; a="9929542" X-IronPort-AV: E=Sophos;i="6.04,206,1695711600"; d="scan'208";a="9929542" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2023 01:45:26 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10896"; a="909390727" X-IronPort-AV: E=Sophos;i="6.04,206,1695711600"; d="scan'208";a="909390727" Received: from rvadera-mobl.ger.corp.intel.com (HELO localhost) ([10.251.219.158]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2023 01:45:22 -0800 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: "John W. Linville" , Kalle Valo , Larry Finger , linux-wireless@vger.kernel.org, Ping-Ke Shih , Bjorn Helgaas , linux-kernel@vger.kernel.org Cc: =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH 2/7] wifi: rtlwifi: Convert to use PCIe capability accessors Date: Fri, 17 Nov 2023 11:44:20 +0200 Message-Id: <20231117094425.80477-3-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20231117094425.80477-1-ilpo.jarvinen@linux.intel.com> References: <20231117094425.80477-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org The rtlwifi driver accesses PCIe capabilities through custom config offsets. Convert the accesses to use the normal PCIe capability accessors. pcibridge_pciehdr_offset in the struct mp_adapter becomes unused after the conversion and can be removed. Signed-off-by: Ilpo Järvinen --- drivers/net/wireless/realtek/rtlwifi/pci.c | 30 ++++++++-------------- drivers/net/wireless/realtek/rtlwifi/pci.h | 1 - 2 files changed, 11 insertions(+), 20 deletions(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c index d67a9617a19c..0c6f03d845a9 100644 --- a/drivers/net/wireless/realtek/rtlwifi/pci.c +++ b/drivers/net/wireless/realtek/rtlwifi/pci.c @@ -64,7 +64,7 @@ static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw) struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; - u8 init_aspm; + u16 init_aspm; ppsc->reg_rfps_level = 0; ppsc->support_aspm = false; @@ -151,9 +151,10 @@ static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw) /* toshiba aspm issue, toshiba will set aspm selfly * so we should not set aspm in driver */ - pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm); + pcie_capability_read_word(rtlpci->pdev, PCI_EXP_LNKCTL, &init_aspm); if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE && - init_aspm == 0x43) + ((u8)init_aspm) == (PCI_EXP_LNKCTL_ASPM_L0S | + PCI_EXP_LNKCTL_ASPM_L1 | PCI_EXP_LNKCTL_CCC)) ppsc->support_aspm = false; } @@ -201,7 +202,7 @@ static void rtl_pci_disable_aspm(struct ieee80211_hw *hw) /*Retrieve original configuration settings. */ u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg; u16 aspmlevel = 0; - u8 tmp_u1b = 0; + u16 tmp_u1b = 0; if (!ppsc->support_aspm) return; @@ -219,7 +220,7 @@ static void rtl_pci_disable_aspm(struct ieee80211_hw *hw) } /*for promising device will in L0 state after an I/O. */ - pci_read_config_byte(rtlpci->pdev, 0x80, &tmp_u1b); + pcie_capability_read_word(rtlpci->pdev, PCI_EXP_LNKCTL, &tmp_u1b); /*Set corresponding value. */ aspmlevel |= BIT(0) | BIT(1); @@ -363,14 +364,9 @@ static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw) { struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); - u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset; - u8 linkctrl_reg; - u8 num4bbytes; - - num4bbytes = (capabilityoffset + 0x10) / 4; + u16 linkctrl_reg; - /*Read Link Control Register */ - pci_read_config_byte(rtlpci->pdev, (num4bbytes << 2), &linkctrl_reg); + pcie_capability_read_word(rtlpci->pdev, PCI_EXP_LNKCTL, &linkctrl_reg); pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg; } @@ -391,9 +387,8 @@ static void rtl_pci_parse_configuration(struct pci_dev *pdev, rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE, "Link Control Register =%x\n", pcipriv->ndis_adapter.linkctrl_reg); - pci_read_config_byte(pdev, 0x98, &tmp); - tmp |= BIT(4); - pci_write_config_byte(pdev, 0x98, tmp); + pcie_capability_set_word(pdev, PCI_EXP_DEVCTL2, + PCI_EXP_DEVCTL2_COMP_TMOUT_DIS); tmp = 0x17; pci_write_config_byte(pdev, 0x70f, tmp); @@ -2029,8 +2024,6 @@ static bool _rtl_pci_find_adapter(struct pci_dev *pdev, PCI_SLOT(bridge_pdev->devfn); pcipriv->ndis_adapter.pcibridge_funcnum = PCI_FUNC(bridge_pdev->devfn); - pcipriv->ndis_adapter.pcibridge_pciehdr_offset = - pci_pcie_cap(bridge_pdev); rtl_pci_get_linkcontrol_field(hw); @@ -2049,12 +2042,11 @@ static bool _rtl_pci_find_adapter(struct pci_dev *pdev, pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg); rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, - "pci_bridge busnumber:devnumber:funcnumber:vendor:pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n", + "pci_bridge busnumber:devnumber:funcnumber:vendor:link_ctl_reg:amd %d:%d:%d:%x:%x:%x\n", pcipriv->ndis_adapter.pcibridge_busnum, pcipriv->ndis_adapter.pcibridge_devnum, pcipriv->ndis_adapter.pcibridge_funcnum, pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor], - pcipriv->ndis_adapter.pcibridge_pciehdr_offset, pcipriv->ndis_adapter.pcibridge_linkctrlreg, pcipriv->ndis_adapter.amd_l1_patch); diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.h b/drivers/net/wireless/realtek/rtlwifi/pci.h index 57174b93db83..281da0b52564 100644 --- a/drivers/net/wireless/realtek/rtlwifi/pci.h +++ b/drivers/net/wireless/realtek/rtlwifi/pci.h @@ -236,7 +236,6 @@ struct mp_adapter { u16 pcibridge_vendorid; u16 pcibridge_deviceid; - u8 pcibridge_pciehdr_offset; u8 pcibridge_linkctrlreg; bool amd_l1_patch;