[04/19] ath11k: Refactor MSI logic

Message ID	1637693434-15462-5-git-send-email-quic_mpubbise@quicinc.com (mailing list archive)
State	Changes Requested
Delegated to:	Kalle Valo
Headers	show Return-Path: <linux-wireless-owner@kernel.org> From: Manikanta Pubbisetty <quic_mpubbise@quicinc.com> To: <ath11k@lists.infradead.org> CC: <linux-wireless@vger.kernel.org>, <devicetree@vger.kernel.org>, <robh@kernel.org>, Manikanta Pubbisetty <quic_mpubbise@quicinc.com> Subject: [PATCH 04/19] ath11k: Refactor MSI logic Date: Wed, 24 Nov 2021 00:20:19 +0530 Message-ID: <1637693434-15462-5-git-send-email-quic_mpubbise@quicinc.com> In-Reply-To: <1637693434-15462-1-git-send-email-quic_mpubbise@quicinc.com> References: <1637693434-15462-1-git-send-email-quic_mpubbise@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk
Series	add support for WCN6750 \| expand [00/19] add support for WCN6750 [01/19] ath11k: PCI changes to support WCN6750 [02/19] ath11k: Refactor PCI code to support hybrid bus devices [03/19] ath11k: Choose MSI config based on HW revision [04/19] ath11k: Refactor MSI logic [05/19] ath11k: Remove core PCI references from PCI common code [06/19] ath11k: Add HW params for WCN6750 [07/19] ath11k: Add bus params for WCN6750 [08/19] ath11k: Add register access logic for WCN6750 [09/19] ath11k: Fetch device information via QMI for WCN6750 [10/19] ath11k: Add QMI changes for WCN6750 [11/19] ath11k: HAL changes to support WCN6750 [12/19] ath11k: Datapath changes to support WCN6750 [13/19] ath11k: Fix RX de-fragmentation issue on WCN6750 [14/19] ath11k: Do not put HW in DBS mode for WCN6750 [15/19] ath11k: WMI changes to support WCN6750 [16/19] ath11k: Update WBM idle ring HP after FW mode on [17/19] ath11k: Add support for WCN6750 device [18/19] ath11k: Add support for targets without trustzone [19/19] dt: bindings: net: add bindings of WCN6750 for ath11k

diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 7b1770a..ec841d5 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 @@ -677,6 +678,19 @@ 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; @@ -782,6 +796,13 @@ 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 7872cda..9a22b44 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -254,8 +254,7 @@ 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 a53de6c..699f4df 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -307,12 +307,13 @@ 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); @@ -329,7 +330,7 @@ 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"); } @@ -344,11 +345,19 @@ 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; @@ -375,10 +384,10 @@ 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; } @@ -562,7 +571,7 @@ 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 5c32322..cd1d08d 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; @@ -564,8 +541,7 @@ 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) @@ -640,8 +616,7 @@ 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);

[04/19] ath11k: Refactor MSI logic

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