2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
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
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.
19 #include "bfa_modules.h"
23 bfa_hwcb_reginit(struct bfa_s *bfa)
25 struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs;
26 void __iomem *kva = bfa_ioc_bar0(&bfa->ioc);
27 int fn = bfa_ioc_pcifn(&bfa->ioc);
30 bfa_regs->intr_status = (kva + HOSTFN0_INT_STATUS);
31 bfa_regs->intr_mask = (kva + HOSTFN0_INT_MSK);
33 bfa_regs->intr_status = (kva + HOSTFN1_INT_STATUS);
34 bfa_regs->intr_mask = (kva + HOSTFN1_INT_MSK);
39 bfa_hwcb_reqq_ack_msix(struct bfa_s *bfa, int reqq)
41 writel(__HFN_INT_CPE_Q0 << CPE_Q_NUM(bfa_ioc_pcifn(&bfa->ioc), reqq),
42 bfa->iocfc.bfa_regs.intr_status);
46 bfa_hwcb_rspq_ack_msix(struct bfa_s *bfa, int rspq)
48 writel(__HFN_INT_RME_Q0 << RME_Q_NUM(bfa_ioc_pcifn(&bfa->ioc), rspq),
49 bfa->iocfc.bfa_regs.intr_status);
53 bfa_hwcb_msix_getvecs(struct bfa_s *bfa, u32 *msix_vecs_bmap,
54 u32 *num_vecs, u32 *max_vec_bit)
56 #define __HFN_NUMINTS 13
57 if (bfa_ioc_pcifn(&bfa->ioc) == 0) {
58 *msix_vecs_bmap = (__HFN_INT_CPE_Q0 | __HFN_INT_CPE_Q1 |
59 __HFN_INT_CPE_Q2 | __HFN_INT_CPE_Q3 |
60 __HFN_INT_RME_Q0 | __HFN_INT_RME_Q1 |
61 __HFN_INT_RME_Q2 | __HFN_INT_RME_Q3 |
63 *max_vec_bit = __HFN_INT_MBOX_LPU0;
65 *msix_vecs_bmap = (__HFN_INT_CPE_Q4 | __HFN_INT_CPE_Q5 |
66 __HFN_INT_CPE_Q6 | __HFN_INT_CPE_Q7 |
67 __HFN_INT_RME_Q4 | __HFN_INT_RME_Q5 |
68 __HFN_INT_RME_Q6 | __HFN_INT_RME_Q7 |
70 *max_vec_bit = __HFN_INT_MBOX_LPU1;
73 *msix_vecs_bmap |= (__HFN_INT_ERR_EMC | __HFN_INT_ERR_LPU0 |
74 __HFN_INT_ERR_LPU1 | __HFN_INT_ERR_PSS);
75 *num_vecs = __HFN_NUMINTS;
79 * Dummy interrupt handler for handling spurious interrupts.
82 bfa_hwcb_msix_dummy(struct bfa_s *bfa, int vec)
87 * No special setup required for crossbow -- vector assignments are implicit.
90 bfa_hwcb_msix_init(struct bfa_s *bfa, int nvecs)
92 WARN_ON((nvecs != 1) && (nvecs != __HFN_NUMINTS));
94 bfa->msix.nvecs = nvecs;
95 bfa_hwcb_msix_uninstall(bfa);
99 bfa_hwcb_msix_ctrl_install(struct bfa_s *bfa)
103 if (bfa->msix.nvecs == 0)
106 if (bfa->msix.nvecs == 1) {
107 for (i = BFI_MSIX_CPE_QMIN_CB; i < BFI_MSIX_CB_MAX; i++)
108 bfa->msix.handler[i] = bfa_msix_all;
112 for (i = BFI_MSIX_RME_QMAX_CB+1; i < BFI_MSIX_CB_MAX; i++)
113 bfa->msix.handler[i] = bfa_msix_lpu_err;
117 bfa_hwcb_msix_queue_install(struct bfa_s *bfa)
121 if (bfa->msix.nvecs == 0)
124 if (bfa->msix.nvecs == 1) {
125 for (i = BFI_MSIX_CPE_QMIN_CB; i <= BFI_MSIX_RME_QMAX_CB; i++)
126 bfa->msix.handler[i] = bfa_msix_all;
130 for (i = BFI_MSIX_CPE_QMIN_CB; i <= BFI_MSIX_CPE_QMAX_CB; i++)
131 bfa->msix.handler[i] = bfa_msix_reqq;
133 for (i = BFI_MSIX_RME_QMIN_CB; i <= BFI_MSIX_RME_QMAX_CB; i++)
134 bfa->msix.handler[i] = bfa_msix_rspq;
138 bfa_hwcb_msix_uninstall(struct bfa_s *bfa)
142 for (i = 0; i < BFI_MSIX_CB_MAX; i++)
143 bfa->msix.handler[i] = bfa_hwcb_msix_dummy;
147 * No special enable/disable -- vector assignments are implicit.
150 bfa_hwcb_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix)
152 bfa->iocfc.hwif.hw_reqq_ack = bfa_hwcb_reqq_ack_msix;
153 bfa->iocfc.hwif.hw_rspq_ack = bfa_hwcb_rspq_ack_msix;
157 bfa_hwcb_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end)
159 *start = BFI_MSIX_RME_QMIN_CB;
160 *end = BFI_MSIX_RME_QMAX_CB;