Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 1 | /* |
Anil Gurumurthy | 889d0d4 | 2015-11-26 03:54:45 -0500 | [diff] [blame] | 2 | * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. |
| 3 | * Copyright (c) 2014- QLogic Corporation. |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 4 | * All rights reserved |
Anil Gurumurthy | 889d0d4 | 2015-11-26 03:54:45 -0500 | [diff] [blame] | 5 | * www.qlogic.com |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 6 | * |
Anil Gurumurthy | 31e1d56 | 2015-11-26 03:54:46 -0500 | [diff] [blame] | 7 | * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter. |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License (GPL) Version 2 as |
| 11 | * published by the Free Software Foundation |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | */ |
| 18 | |
Maggie Zhang | f16a175 | 2010-12-09 19:12:32 -0800 | [diff] [blame] | 19 | #include "bfad_drv.h" |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 20 | #include "bfa_modules.h" |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 21 | #include "bfi_reg.h" |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 22 | |
| 23 | BFA_TRC_FILE(HAL, IOCFC_CT); |
| 24 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 25 | /* |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 26 | * Dummy interrupt handler for handling spurious interrupt during chip-reinit. |
| 27 | */ |
| 28 | static void |
| 29 | bfa_hwct_msix_dummy(struct bfa_s *bfa, int vec) |
| 30 | { |
| 31 | } |
| 32 | |
| 33 | void |
| 34 | bfa_hwct_reginit(struct bfa_s *bfa) |
| 35 | { |
| 36 | struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs; |
Jing Huang | 5344026 | 2010-10-18 17:12:29 -0700 | [diff] [blame] | 37 | void __iomem *kva = bfa_ioc_bar0(&bfa->ioc); |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 38 | int fn = bfa_ioc_pcifn(&bfa->ioc); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 39 | |
| 40 | if (fn == 0) { |
| 41 | bfa_regs->intr_status = (kva + HOSTFN0_INT_STATUS); |
| 42 | bfa_regs->intr_mask = (kva + HOSTFN0_INT_MSK); |
| 43 | } else { |
| 44 | bfa_regs->intr_status = (kva + HOSTFN1_INT_STATUS); |
| 45 | bfa_regs->intr_mask = (kva + HOSTFN1_INT_MSK); |
| 46 | } |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 47 | } |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 48 | |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 49 | void |
| 50 | bfa_hwct2_reginit(struct bfa_s *bfa) |
| 51 | { |
| 52 | struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs; |
| 53 | void __iomem *kva = bfa_ioc_bar0(&bfa->ioc); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 54 | |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 55 | bfa_regs->intr_status = (kva + CT2_HOSTFN_INT_STATUS); |
| 56 | bfa_regs->intr_mask = (kva + CT2_HOSTFN_INTR_MASK); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | void |
Krishna Gudipati | f5713c5 | 2010-03-05 19:37:09 -0800 | [diff] [blame] | 60 | bfa_hwct_reqq_ack(struct bfa_s *bfa, int reqq) |
| 61 | { |
Krishna Gudipati | a36c61f | 2010-09-15 11:50:55 -0700 | [diff] [blame] | 62 | u32 r32; |
Krishna Gudipati | f5713c5 | 2010-03-05 19:37:09 -0800 | [diff] [blame] | 63 | |
Jing Huang | 5344026 | 2010-10-18 17:12:29 -0700 | [diff] [blame] | 64 | r32 = readl(bfa->iocfc.bfa_regs.cpe_q_ctrl[reqq]); |
| 65 | writel(r32, bfa->iocfc.bfa_regs.cpe_q_ctrl[reqq]); |
Krishna Gudipati | f5713c5 | 2010-03-05 19:37:09 -0800 | [diff] [blame] | 66 | } |
| 67 | |
Krishna Gudipati | ca6e0ea | 2011-07-20 17:00:45 -0700 | [diff] [blame] | 68 | /* |
| 69 | * Actions to respond RME Interrupt for Catapult ASIC: |
| 70 | * - Write 1 to Interrupt Status register (INTx only - done in bfa_intx()) |
| 71 | * - Acknowledge by writing to RME Queue Control register |
| 72 | * - Update CI |
| 73 | */ |
Krishna Gudipati | f5713c5 | 2010-03-05 19:37:09 -0800 | [diff] [blame] | 74 | void |
Krishna Gudipati | ca6e0ea | 2011-07-20 17:00:45 -0700 | [diff] [blame] | 75 | bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 76 | { |
| 77 | u32 r32; |
| 78 | |
Jing Huang | 5344026 | 2010-10-18 17:12:29 -0700 | [diff] [blame] | 79 | r32 = readl(bfa->iocfc.bfa_regs.rme_q_ctrl[rspq]); |
| 80 | writel(r32, bfa->iocfc.bfa_regs.rme_q_ctrl[rspq]); |
Krishna Gudipati | ca6e0ea | 2011-07-20 17:00:45 -0700 | [diff] [blame] | 81 | |
| 82 | bfa_rspq_ci(bfa, rspq) = ci; |
| 83 | writel(ci, bfa->iocfc.bfa_regs.rme_q_ci[rspq]); |
| 84 | mmiowb(); |
| 85 | } |
| 86 | |
| 87 | /* |
| 88 | * Actions to respond RME Interrupt for Catapult2 ASIC: |
| 89 | * - Write 1 to Interrupt Status register (INTx only - done in bfa_intx()) |
| 90 | * - Update CI |
| 91 | */ |
| 92 | void |
| 93 | bfa_hwct2_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci) |
| 94 | { |
| 95 | bfa_rspq_ci(bfa, rspq) = ci; |
| 96 | writel(ci, bfa->iocfc.bfa_regs.rme_q_ci[rspq]); |
| 97 | mmiowb(); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | void |
| 101 | bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *msix_vecs_bmap, |
| 102 | u32 *num_vecs, u32 *max_vec_bit) |
| 103 | { |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 104 | *msix_vecs_bmap = (1 << BFI_MSIX_CT_MAX) - 1; |
| 105 | *max_vec_bit = (1 << (BFI_MSIX_CT_MAX - 1)); |
| 106 | *num_vecs = BFI_MSIX_CT_MAX; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 107 | } |
| 108 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 109 | /* |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 110 | * Setup MSI-X vector for catapult |
| 111 | */ |
| 112 | void |
| 113 | bfa_hwct_msix_init(struct bfa_s *bfa, int nvecs) |
| 114 | { |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 115 | WARN_ON((nvecs != 1) && (nvecs != BFI_MSIX_CT_MAX)); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 116 | bfa_trc(bfa, nvecs); |
| 117 | |
| 118 | bfa->msix.nvecs = nvecs; |
| 119 | bfa_hwct_msix_uninstall(bfa); |
| 120 | } |
| 121 | |
| 122 | void |
Krishna Gudipati | 775c774 | 2011-06-13 15:52:12 -0700 | [diff] [blame] | 123 | bfa_hwct_msix_ctrl_install(struct bfa_s *bfa) |
| 124 | { |
| 125 | if (bfa->msix.nvecs == 0) |
| 126 | return; |
| 127 | |
| 128 | if (bfa->msix.nvecs == 1) |
| 129 | bfa->msix.handler[BFI_MSIX_LPU_ERR_CT] = bfa_msix_all; |
| 130 | else |
| 131 | bfa->msix.handler[BFI_MSIX_LPU_ERR_CT] = bfa_msix_lpu_err; |
| 132 | } |
| 133 | |
| 134 | void |
| 135 | bfa_hwct_msix_queue_install(struct bfa_s *bfa) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 136 | { |
| 137 | int i; |
| 138 | |
| 139 | if (bfa->msix.nvecs == 0) |
| 140 | return; |
| 141 | |
| 142 | if (bfa->msix.nvecs == 1) { |
Krishna Gudipati | 775c774 | 2011-06-13 15:52:12 -0700 | [diff] [blame] | 143 | for (i = BFI_MSIX_CPE_QMIN_CT; i < BFI_MSIX_CT_MAX; i++) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 144 | bfa->msix.handler[i] = bfa_msix_all; |
| 145 | return; |
| 146 | } |
| 147 | |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 148 | for (i = BFI_MSIX_CPE_QMIN_CT; i <= BFI_MSIX_CPE_QMAX_CT; i++) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 149 | bfa->msix.handler[i] = bfa_msix_reqq; |
| 150 | |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 151 | for (i = BFI_MSIX_RME_QMIN_CT; i <= BFI_MSIX_RME_QMAX_CT; i++) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 152 | bfa->msix.handler[i] = bfa_msix_rspq; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 153 | } |
| 154 | |
| 155 | void |
| 156 | bfa_hwct_msix_uninstall(struct bfa_s *bfa) |
| 157 | { |
| 158 | int i; |
| 159 | |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 160 | for (i = 0; i < BFI_MSIX_CT_MAX; i++) |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 161 | bfa->msix.handler[i] = bfa_hwct_msix_dummy; |
| 162 | } |
| 163 | |
Jing Huang | 5fbe25c | 2010-10-18 17:17:23 -0700 | [diff] [blame] | 164 | /* |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 165 | * Enable MSI-X vectors |
| 166 | */ |
| 167 | void |
| 168 | bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix) |
| 169 | { |
| 170 | bfa_trc(bfa, 0); |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 171 | bfa_ioc_isr_mode_set(&bfa->ioc, msix); |
| 172 | } |
| 173 | |
Jing Huang | 36d345a | 2010-07-08 19:57:33 -0700 | [diff] [blame] | 174 | void |
| 175 | bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end) |
| 176 | { |
Krishna Gudipati | 1118920 | 2011-06-13 15:50:35 -0700 | [diff] [blame] | 177 | *start = BFI_MSIX_RME_QMIN_CT; |
| 178 | *end = BFI_MSIX_RME_QMAX_CT; |
Jing Huang | 36d345a | 2010-07-08 19:57:33 -0700 | [diff] [blame] | 179 | } |