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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.4 * Copyright (c) 2014- QLogic Corporation.5 * All rights reserved6 * www.qlogic.com7 *8 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.9 */10 11#include "bfad_drv.h"12#include "bfa_modules.h"13#include "bfi_reg.h"14 15BFA_TRC_FILE(HAL, IOCFC_CT);16 17/*18 * Dummy interrupt handler for handling spurious interrupt during chip-reinit.19 */20static void21bfa_hwct_msix_dummy(struct bfa_s *bfa, int vec)22{23}24 25void26bfa_hwct_reginit(struct bfa_s *bfa)27{28 struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs;29 void __iomem *kva = bfa_ioc_bar0(&bfa->ioc);30 int fn = bfa_ioc_pcifn(&bfa->ioc);31 32 if (fn == 0) {33 bfa_regs->intr_status = (kva + HOSTFN0_INT_STATUS);34 bfa_regs->intr_mask = (kva + HOSTFN0_INT_MSK);35 } else {36 bfa_regs->intr_status = (kva + HOSTFN1_INT_STATUS);37 bfa_regs->intr_mask = (kva + HOSTFN1_INT_MSK);38 }39}40 41void42bfa_hwct2_reginit(struct bfa_s *bfa)43{44 struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs;45 void __iomem *kva = bfa_ioc_bar0(&bfa->ioc);46 47 bfa_regs->intr_status = (kva + CT2_HOSTFN_INT_STATUS);48 bfa_regs->intr_mask = (kva + CT2_HOSTFN_INTR_MASK);49}50 51void52bfa_hwct_reqq_ack(struct bfa_s *bfa, int reqq)53{54 u32 r32;55 56 r32 = readl(bfa->iocfc.bfa_regs.cpe_q_ctrl[reqq]);57 writel(r32, bfa->iocfc.bfa_regs.cpe_q_ctrl[reqq]);58}59 60/*61 * Actions to respond RME Interrupt for Catapult ASIC:62 * - Write 1 to Interrupt Status register (INTx only - done in bfa_intx())63 * - Acknowledge by writing to RME Queue Control register64 * - Update CI65 */66void67bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci)68{69 u32 r32;70 71 r32 = readl(bfa->iocfc.bfa_regs.rme_q_ctrl[rspq]);72 writel(r32, bfa->iocfc.bfa_regs.rme_q_ctrl[rspq]);73 74 bfa_rspq_ci(bfa, rspq) = ci;75 writel(ci, bfa->iocfc.bfa_regs.rme_q_ci[rspq]);76}77 78/*79 * Actions to respond RME Interrupt for Catapult2 ASIC:80 * - Write 1 to Interrupt Status register (INTx only - done in bfa_intx())81 * - Update CI82 */83void84bfa_hwct2_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci)85{86 bfa_rspq_ci(bfa, rspq) = ci;87 writel(ci, bfa->iocfc.bfa_regs.rme_q_ci[rspq]);88}89 90void91bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *msix_vecs_bmap,92 u32 *num_vecs, u32 *max_vec_bit)93{94 *msix_vecs_bmap = (1 << BFI_MSIX_CT_MAX) - 1;95 *max_vec_bit = (1 << (BFI_MSIX_CT_MAX - 1));96 *num_vecs = BFI_MSIX_CT_MAX;97}98 99/*100 * Setup MSI-X vector for catapult101 */102void103bfa_hwct_msix_init(struct bfa_s *bfa, int nvecs)104{105 WARN_ON((nvecs != 1) && (nvecs != BFI_MSIX_CT_MAX));106 bfa_trc(bfa, nvecs);107 108 bfa->msix.nvecs = nvecs;109 bfa_hwct_msix_uninstall(bfa);110}111 112void113bfa_hwct_msix_ctrl_install(struct bfa_s *bfa)114{115 if (bfa->msix.nvecs == 0)116 return;117 118 if (bfa->msix.nvecs == 1)119 bfa->msix.handler[BFI_MSIX_LPU_ERR_CT] = bfa_msix_all;120 else121 bfa->msix.handler[BFI_MSIX_LPU_ERR_CT] = bfa_msix_lpu_err;122}123 124void125bfa_hwct_msix_queue_install(struct bfa_s *bfa)126{127 int i;128 129 if (bfa->msix.nvecs == 0)130 return;131 132 if (bfa->msix.nvecs == 1) {133 for (i = BFI_MSIX_CPE_QMIN_CT; i < BFI_MSIX_CT_MAX; i++)134 bfa->msix.handler[i] = bfa_msix_all;135 return;136 }137 138 for (i = BFI_MSIX_CPE_QMIN_CT; i <= BFI_MSIX_CPE_QMAX_CT; i++)139 bfa->msix.handler[i] = bfa_msix_reqq;140 141 for (i = BFI_MSIX_RME_QMIN_CT; i <= BFI_MSIX_RME_QMAX_CT; i++)142 bfa->msix.handler[i] = bfa_msix_rspq;143}144 145void146bfa_hwct_msix_uninstall(struct bfa_s *bfa)147{148 int i;149 150 for (i = 0; i < BFI_MSIX_CT_MAX; i++)151 bfa->msix.handler[i] = bfa_hwct_msix_dummy;152}153 154/*155 * Enable MSI-X vectors156 */157void158bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix)159{160 bfa_trc(bfa, 0);161 bfa_ioc_isr_mode_set(&bfa->ioc, msix);162}163 164void165bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end)166{167 *start = BFI_MSIX_RME_QMIN_CT;168 *end = BFI_MSIX_RME_QMAX_CT;169}170