Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. |
| 3 | * All rights reserved |
| 4 | * www.brocade.com |
| 5 | * |
| 6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License (GPL) Version 2 as |
| 10 | * published by the Free Software Foundation |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | */ |
| 17 | |
| 18 | #include <bfa_priv.h> |
| 19 | #include <bfi/bfi_cbreg.h> |
| 20 | |
| 21 | void |
| 22 | bfa_hwcb_reginit(struct bfa_s *bfa) |
| 23 | { |
| 24 | struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs; |
| 25 | bfa_os_addr_t kva = bfa_ioc_bar0(&bfa->ioc); |
| 26 | int i, q, fn = bfa_ioc_pcifn(&bfa->ioc); |
| 27 | |
| 28 | if (fn == 0) { |
| 29 | bfa_regs->intr_status = (kva + HOSTFN0_INT_STATUS); |
| 30 | bfa_regs->intr_mask = (kva + HOSTFN0_INT_MSK); |
| 31 | } else { |
| 32 | bfa_regs->intr_status = (kva + HOSTFN1_INT_STATUS); |
| 33 | bfa_regs->intr_mask = (kva + HOSTFN1_INT_MSK); |
| 34 | } |
| 35 | |
| 36 | for (i = 0; i < BFI_IOC_MAX_CQS; i++) { |
| 37 | /* |
| 38 | * CPE registers |
| 39 | */ |
| 40 | q = CPE_Q_NUM(fn, i); |
| 41 | bfa_regs->cpe_q_pi[i] = (kva + CPE_Q_PI(q)); |
| 42 | bfa_regs->cpe_q_ci[i] = (kva + CPE_Q_CI(q)); |
| 43 | bfa_regs->cpe_q_depth[i] = (kva + CPE_Q_DEPTH(q)); |
| 44 | |
| 45 | /* |
| 46 | * RME registers |
| 47 | */ |
| 48 | q = CPE_Q_NUM(fn, i); |
| 49 | bfa_regs->rme_q_pi[i] = (kva + RME_Q_PI(q)); |
| 50 | bfa_regs->rme_q_ci[i] = (kva + RME_Q_CI(q)); |
| 51 | bfa_regs->rme_q_depth[i] = (kva + RME_Q_DEPTH(q)); |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | void |
Krishna Gudipati | f5713c5 | 2010-03-05 19:37:09 -0800 | [diff] [blame] | 56 | bfa_hwcb_reqq_ack(struct bfa_s *bfa, int reqq) |
| 57 | { |
| 58 | } |
| 59 | |
| 60 | static void |
| 61 | bfa_hwcb_reqq_ack_msix(struct bfa_s *bfa, int reqq) |
| 62 | { |
| 63 | bfa_reg_write(bfa->iocfc.bfa_regs.intr_status, |
| 64 | __HFN_INT_CPE_Q0 << CPE_Q_NUM(bfa_ioc_pcifn(&bfa->ioc), reqq)); |
| 65 | } |
| 66 | |
| 67 | void |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 68 | bfa_hwcb_rspq_ack(struct bfa_s *bfa, int rspq) |
| 69 | { |
| 70 | } |
| 71 | |
| 72 | static void |
| 73 | bfa_hwcb_rspq_ack_msix(struct bfa_s *bfa, int rspq) |
| 74 | { |
| 75 | bfa_reg_write(bfa->iocfc.bfa_regs.intr_status, |
| 76 | __HFN_INT_RME_Q0 << RME_Q_NUM(bfa_ioc_pcifn(&bfa->ioc), rspq)); |
| 77 | } |
| 78 | |
| 79 | void |
| 80 | bfa_hwcb_msix_getvecs(struct bfa_s *bfa, u32 *msix_vecs_bmap, |
| 81 | u32 *num_vecs, u32 *max_vec_bit) |
| 82 | { |
| 83 | #define __HFN_NUMINTS 13 |
| 84 | if (bfa_ioc_pcifn(&bfa->ioc) == 0) { |
| 85 | *msix_vecs_bmap = (__HFN_INT_CPE_Q0 | __HFN_INT_CPE_Q1 | |
| 86 | __HFN_INT_CPE_Q2 | __HFN_INT_CPE_Q3 | |
| 87 | __HFN_INT_RME_Q0 | __HFN_INT_RME_Q1 | |
| 88 | __HFN_INT_RME_Q2 | __HFN_INT_RME_Q3 | |
| 89 | __HFN_INT_MBOX_LPU0); |
| 90 | *max_vec_bit = __HFN_INT_MBOX_LPU0; |
| 91 | } else { |
| 92 | *msix_vecs_bmap = (__HFN_INT_CPE_Q4 | __HFN_INT_CPE_Q5 | |
| 93 | __HFN_INT_CPE_Q6 | __HFN_INT_CPE_Q7 | |
| 94 | __HFN_INT_RME_Q4 | __HFN_INT_RME_Q5 | |
| 95 | __HFN_INT_RME_Q6 | __HFN_INT_RME_Q7 | |
| 96 | __HFN_INT_MBOX_LPU1); |
| 97 | *max_vec_bit = __HFN_INT_MBOX_LPU1; |
| 98 | } |
| 99 | |
| 100 | *msix_vecs_bmap |= (__HFN_INT_ERR_EMC | __HFN_INT_ERR_LPU0 | |
| 101 | __HFN_INT_ERR_LPU1 | __HFN_INT_ERR_PSS); |
| 102 | *num_vecs = __HFN_NUMINTS; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * No special setup required for crossbow -- vector assignments are implicit. |
| 107 | */ |
| 108 | void |
| 109 | bfa_hwcb_msix_init(struct bfa_s *bfa, int nvecs) |
| 110 | { |
| 111 | int i; |
| 112 | |
| 113 | bfa_assert((nvecs == 1) || (nvecs == __HFN_NUMINTS)); |
| 114 | |
| 115 | bfa->msix.nvecs = nvecs; |
| 116 | if (nvecs == 1) { |
| 117 | for (i = 0; i < BFA_MSIX_CB_MAX; i++) |
| 118 | bfa->msix.handler[i] = bfa_msix_all; |
| 119 | return; |
| 120 | } |
| 121 | |
| 122 | for (i = BFA_MSIX_CPE_Q0; i <= BFA_MSIX_CPE_Q7; i++) |
| 123 | bfa->msix.handler[i] = bfa_msix_reqq; |
| 124 | |
| 125 | for (i = BFA_MSIX_RME_Q0; i <= BFA_MSIX_RME_Q7; i++) |
| 126 | bfa->msix.handler[i] = bfa_msix_rspq; |
| 127 | |
| 128 | for (; i < BFA_MSIX_CB_MAX; i++) |
| 129 | bfa->msix.handler[i] = bfa_msix_lpu_err; |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Crossbow -- dummy, interrupts are masked |
| 134 | */ |
| 135 | void |
| 136 | bfa_hwcb_msix_install(struct bfa_s *bfa) |
| 137 | { |
| 138 | } |
| 139 | |
| 140 | void |
| 141 | bfa_hwcb_msix_uninstall(struct bfa_s *bfa) |
| 142 | { |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * No special enable/disable -- vector assignments are implicit. |
| 147 | */ |
| 148 | void |
| 149 | bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix) |
| 150 | { |
Krishna Gudipati | f5713c5 | 2010-03-05 19:37:09 -0800 | [diff] [blame] | 151 | bfa->iocfc.hwif.hw_reqq_ack = bfa_hwcb_reqq_ack_msix; |
Jing Huang | 7725ccf | 2009-09-23 17:46:15 -0700 | [diff] [blame] | 152 | bfa->iocfc.hwif.hw_rspq_ack = bfa_hwcb_rspq_ack_msix; |
| 153 | } |
| 154 | |
Jing Huang | 36d345a | 2010-07-08 19:57:33 -0700 | [diff] [blame] | 155 | void |
| 156 | bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end) |
| 157 | { |
| 158 | *start = BFA_MSIX_RME_Q0; |
| 159 | *end = BFA_MSIX_RME_Q7; |
| 160 | } |