From patchwork Sun Jan 16 12:47:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikanta Pubbisetty X-Patchwork-Id: 12714567 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 B8CB9C433F5 for ; Sun, 16 Jan 2022 12:47:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235113AbiAPMry (ORCPT ); Sun, 16 Jan 2022 07:47:54 -0500 Received: from alexa-out.qualcomm.com ([129.46.98.28]:6149 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235060AbiAPMrv (ORCPT ); Sun, 16 Jan 2022 07:47:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1642337271; x=1673873271; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=4E9AI9fR/82YUd3ofL8+CuzxoupnFw4BI27GeF3eOvk=; b=BJzRj9QC3KWh7l4vnskDXMfuKjceKAMEYvHbgr9ZcNdv/jgLbuNfYB0G 2eRTyYbtDZX8W/7TvuzXq14+kSy6aVnyvWClIYfOaGk7Hwot8M5CblTlu OENXxFVtccVslVFUq8r6S07hGNmoOWlSx9c4MHjOqgZP3Wn/3/a+jO9b4 A=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 16 Jan 2022 04:47:49 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jan 2022 04:47:49 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Sun, 16 Jan 2022 04:47:40 -0800 Received: from mpubbise-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Sun, 16 Jan 2022 04:47:37 -0800 From: Manikanta Pubbisetty To: CC: , , , Manikanta Pubbisetty Subject: [PATCH v2 04/19] ath11k: Refactor MSI logic Date: Sun, 16 Jan 2022 18:17:00 +0530 Message-ID: <1642337235-8618-5-git-send-email-quic_mpubbise@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1642337235-8618-1-git-send-email-quic_mpubbise@quicinc.com> References: <1642337235-8618-1-git-send-email-quic_mpubbise@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Refactor MSI logic in order to support hybrid bus devices like WCN6750. Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00573-QCAMSLSWPLZ-1 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1 Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1 Signed-off-by: Manikanta Pubbisetty --- drivers/net/wireless/ath/ath11k/core.h | 21 ++++++++++++++++ drivers/net/wireless/ath/ath11k/mhi.c | 3 +-- drivers/net/wireless/ath/ath11k/pci.c | 29 ++++++++++++++-------- drivers/net/wireless/ath/ath11k/pci.h | 16 ------------ drivers/net/wireless/ath/ath11k/pci_cmn.c | 41 ++++++------------------------- drivers/net/wireless/ath/ath11k/pci_cmn.h | 5 +--- 6 files changed, 50 insertions(+), 65 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 9e88ccc..bfa2a3a 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: BSD-3-Clause-Clear */ /* * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. + * Copyright (c) 2021, Qualcomm Innovation Center, Inc. All rights reserved. */ #ifndef ATH11K_CORE_H @@ -693,6 +694,19 @@ struct ath11k_soc_dp_stats { struct ath11k_dp_ring_bp_stats bp_stats; }; +struct ath11k_msi_user { + char *name; + int num_vectors; + u32 base_vector; +}; + +struct ath11k_msi_config { + int total_vectors; + int total_users; + struct ath11k_msi_user *users; + u16 hw_rev; +}; + /* Master structure to hold the hw data which may be used in core module */ struct ath11k_base { enum ath11k_hw_rev hw_rev; @@ -805,6 +819,13 @@ struct ath11k_base { u32 subsystem_device; } id; + struct { + const struct ath11k_msi_config *msi_config; + u32 msi_ep_base_data; + u32 msi_addr_lo; + u32 msi_addr_hi; + } msi; + /* must be last */ u8 drv_priv[0] __aligned(sizeof(void *)); }; diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 21b8cfd..302b303 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -257,8 +257,7 @@ static int ath11k_mhi_get_msi(struct ath11k_pci *ab_pci) int *irq; unsigned int msi_data; - ret = ath11k_pci_get_user_msi_assignment(ab_pci, - "MHI", &num_vectors, + ret = ath11k_pci_get_user_msi_assignment(ab, "MHI", &num_vectors, &user_base_data, &base_vector); if (ret) return ret; diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index f8548f5..a2f3be0 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -309,12 +309,13 @@ static void ath11k_pci_msi_disable(struct ath11k_pci *ab_pci) static int ath11k_pci_alloc_msi(struct ath11k_pci *ab_pci) { struct ath11k_base *ab = ab_pci->ab; - const struct ath11k_msi_config *msi_config = ab_pci->msi_config; + const struct ath11k_msi_config *msi_config = ab->msi.msi_config; + struct pci_dev *pci_dev = ab_pci->pdev; struct msi_desc *msi_desc; int num_vectors; int ret; - num_vectors = pci_alloc_irq_vectors(ab_pci->pdev, + num_vectors = pci_alloc_irq_vectors(pci_dev, msi_config->total_vectors, msi_config->total_vectors, PCI_IRQ_MSI); @@ -331,7 +332,7 @@ static int ath11k_pci_alloc_msi(struct ath11k_pci *ab_pci) goto reset_msi_config; } clear_bit(ATH11K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags); - ab_pci->msi_config = &msi_config_one_msi; + ab->msi.msi_config = &msi_config_one_msi; ab_pci->irq_flags = IRQF_SHARED | IRQF_NOBALANCING; ath11k_dbg(ab, ATH11K_DBG_PCI, "request MSI one vector\n"); } @@ -346,11 +347,19 @@ static int ath11k_pci_alloc_msi(struct ath11k_pci *ab_pci) goto free_msi_vector; } - ab_pci->msi_ep_base_data = msi_desc->msg.data; - if (msi_desc->msi_attrib.is_64) - set_bit(ATH11K_PCI_FLAG_IS_MSI_64, &ab_pci->flags); + ab->msi.msi_ep_base_data = msi_desc->msg.data; + + pci_read_config_dword(pci_dev, pci_dev->msi_cap + PCI_MSI_ADDRESS_LO, + &ab->msi.msi_addr_lo); + + if (msi_desc->msi_attrib.is_64) { + pci_read_config_dword(pci_dev, pci_dev->msi_cap + PCI_MSI_ADDRESS_HI, + &ab->msi.msi_addr_hi); + } else { + ab->msi.msi_addr_hi = 0; + } - ath11k_dbg(ab, ATH11K_DBG_PCI, "msi base data is %d\n", ab_pci->msi_ep_base_data); + ath11k_dbg(ab, ATH11K_DBG_PCI, "msi base data is %d\n", ab->msi.msi_ep_base_data); return 0; @@ -377,10 +386,10 @@ static int ath11k_pci_config_msi_data(struct ath11k_pci *ab_pci) return -EINVAL; } - ab_pci->msi_ep_base_data = msi_desc->msg.data; + ab_pci->ab->msi.msi_ep_base_data = msi_desc->msg.data; ath11k_dbg(ab_pci->ab, ATH11K_DBG_PCI, "pci after request_irq msi_ep_base_data %d\n", - ab_pci->msi_ep_base_data); + ab_pci->ab->msi.msi_ep_base_data); return 0; } @@ -564,7 +573,7 @@ static const struct ath11k_hif_ops ath11k_pci_hif_ops = { .irq_enable = ath11k_pci_ext_irq_enable, .irq_disable = ath11k_pci_ext_irq_disable, .get_msi_address = ath11k_pci_get_msi_address, - .get_user_msi_vector = ath11k_get_user_msi_assignment, + .get_user_msi_vector = ath11k_pci_get_user_msi_assignment, .map_service_to_pipe = ath11k_pci_map_service_to_pipe, .ce_irq_enable = ath11k_pci_hif_ce_irq_enable, .ce_irq_disable = ath11k_pci_hif_ce_irq_disable, diff --git a/drivers/net/wireless/ath/ath11k/pci.h b/drivers/net/wireless/ath/ath11k/pci.h index 03868f3f..694fcb4 100644 --- a/drivers/net/wireless/ath/ath11k/pci.h +++ b/drivers/net/wireless/ath/ath11k/pci.h @@ -53,22 +53,8 @@ #define WLAON_QFPROM_PWR_CTRL_REG 0x01f8031c #define QFPROM_PWR_CTRL_VDD4BLOW_MASK 0x4 -struct ath11k_msi_user { - char *name; - int num_vectors; - u32 base_vector; -}; - -struct ath11k_msi_config { - int total_vectors; - int total_users; - struct ath11k_msi_user *users; - u16 hw_rev; -}; - enum ath11k_pci_flags { ATH11K_PCI_FLAG_INIT_DONE, - ATH11K_PCI_FLAG_IS_MSI_64, ATH11K_PCI_ASPM_RESTORE, ATH11K_PCI_FLAG_MULTI_MSI_VECTORS, }; @@ -78,9 +64,7 @@ struct ath11k_pci { struct ath11k_base *ab; u16 dev_id; char amss_path[100]; - u32 msi_ep_base_data; struct mhi_controller *mhi_ctrl; - const struct ath11k_msi_config *msi_config; unsigned long mhi_state; u32 register_window; diff --git a/drivers/net/wireless/ath/ath11k/pci_cmn.c b/drivers/net/wireless/ath/ath11k/pci_cmn.c index b5eca2d..f3142b1 100644 --- a/drivers/net/wireless/ath/ath11k/pci_cmn.c +++ b/drivers/net/wireless/ath/ath11k/pci_cmn.c @@ -100,7 +100,6 @@ static const struct ath11k_msi_config ath11k_msi_config[] = { int ath11k_pci_get_msi_config(struct ath11k_base *ab) { - struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); const struct ath11k_msi_config *msi_config; int i; @@ -117,7 +116,7 @@ int ath11k_pci_get_msi_config(struct ath11k_base *ab) return -EINVAL; } - ab_pci->msi_config = msi_config; + ab->msi.msi_config = msi_config; return 0; } @@ -251,33 +250,22 @@ int ath11k_pci_get_msi_irq(struct device *dev, unsigned int vector) void ath11k_pci_get_msi_address(struct ath11k_base *ab, u32 *msi_addr_lo, u32 *msi_addr_hi) { - struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); - struct pci_dev *pci_dev = to_pci_dev(ab->dev); - - pci_read_config_dword(pci_dev, pci_dev->msi_cap + PCI_MSI_ADDRESS_LO, - msi_addr_lo); - - if (test_bit(ATH11K_PCI_FLAG_IS_MSI_64, &ab_pci->flags)) { - pci_read_config_dword(pci_dev, pci_dev->msi_cap + PCI_MSI_ADDRESS_HI, - msi_addr_hi); - } else { - *msi_addr_hi = 0; - } + *msi_addr_lo = ab->msi.msi_addr_lo; + *msi_addr_hi = ab->msi.msi_addr_hi; } -int ath11k_pci_get_user_msi_assignment(struct ath11k_pci *ab_pci, char *user_name, +int ath11k_pci_get_user_msi_assignment(struct ath11k_base *ab, char *user_name, int *num_vectors, u32 *user_base_data, u32 *base_vector) { - struct ath11k_base *ab = ab_pci->ab; - const struct ath11k_msi_config *msi_config = ab_pci->msi_config; + const struct ath11k_msi_config *msi_config = ab->msi.msi_config; int idx; for (idx = 0; idx < msi_config->total_users; idx++) { if (strcmp(user_name, msi_config->users[idx].name) == 0) { *num_vectors = msi_config->users[idx].num_vectors; *base_vector = msi_config->users[idx].base_vector; - *user_base_data = *base_vector + ab_pci->msi_ep_base_data; + *user_base_data = *base_vector + ab->msi.msi_ep_base_data; ath11k_dbg(ab, ATH11K_DBG_PCI, "Assign MSI to user: %s, num_vectors: %d, user_base_data: %u, base_vector: %u\n", @@ -309,17 +297,6 @@ void ath11k_pci_get_ce_msi_idx(struct ath11k_base *ab, u32 ce_id, u32 *msi_idx) *msi_idx = msi_data_idx; } -int ath11k_get_user_msi_assignment(struct ath11k_base *ab, char *user_name, - int *num_vectors, u32 *user_base_data, - u32 *base_vector) -{ - struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); - - return ath11k_pci_get_user_msi_assignment(ab_pci, user_name, - num_vectors, user_base_data, - base_vector); -} - static void ath11k_pci_free_ext_irq(struct ath11k_base *ab) { int i, j; @@ -570,8 +547,7 @@ static int ath11k_pci_ext_irq_config(struct ath11k_base *ab) int i, j, ret, num_vectors = 0; u32 user_base_data = 0, base_vector = 0; - ret = ath11k_pci_get_user_msi_assignment(ath11k_pci_priv(ab), "DP", - &num_vectors, + ret = ath11k_pci_get_user_msi_assignment(ab, "DP", &num_vectors, &user_base_data, &base_vector); if (ret < 0) @@ -646,8 +622,7 @@ int ath11k_pci_config_irq(struct ath11k_base *ab) unsigned int msi_data; int irq, i, ret, irq_idx; - ret = ath11k_pci_get_user_msi_assignment(ath11k_pci_priv(ab), - "CE", &msi_data_count, + ret = ath11k_pci_get_user_msi_assignment(ab, "CE", &msi_data_count, &msi_data_start, &msi_irq_start); if (ret) return ret; diff --git a/drivers/net/wireless/ath/ath11k/pci_cmn.h b/drivers/net/wireless/ath/ath11k/pci_cmn.h index f5916da..cc78c23 100644 --- a/drivers/net/wireless/ath/ath11k/pci_cmn.h +++ b/drivers/net/wireless/ath/ath11k/pci_cmn.h @@ -25,7 +25,7 @@ */ #define ATH11K_PCI_ACCESS_ALWAYS_OFF 0xFE0 -int ath11k_pci_get_user_msi_assignment(struct ath11k_pci *ar_pci, char *user_name, +int ath11k_pci_get_user_msi_assignment(struct ath11k_base *ab, char *user_name, int *num_vectors, u32 *user_base_data, u32 *base_vector); int ath11k_pci_get_msi_irq(struct device *dev, unsigned int vector); @@ -44,9 +44,6 @@ int ath11k_pci_map_service_to_pipe(struct ath11k_base *ab, u16 service_id, u8 *ul_pipe, u8 *dl_pipe); void ath11k_pci_ce_irqs_enable(struct ath11k_base *ab); void ath11k_pci_ce_irq_disable_sync(struct ath11k_base *ab); -int ath11k_get_user_msi_assignment(struct ath11k_base *ab, char *user_name, - int *num_vectors, u32 *user_base_data, - u32 *base_vector); void ath11k_pci_aspm_restore(struct ath11k_pci *ab_pci); int ath11k_pci_set_irq_affinity_hint(struct ath11k_pci *ab_pci, const struct cpumask *m);