cregit-Linux how code gets into the kernel

Release 4.7 drivers/scsi/bfa/bfa_hw_ct.c

Directory: drivers/scsi/bfa
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014- QLogic Corporation.
 * All rights reserved
 * www.qlogic.com
 *
 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#include "bfad_drv.h"
#include "bfa_modules.h"
#include "bfi_reg.h"

BFA_TRC_FILE(HAL, IOCFC_CT);

/*
 * Dummy interrupt handler for handling spurious interrupt during chip-reinit.
 */

static void bfa_hwct_msix_dummy(struct bfa_s *bfa, int vec) { }

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void bfa_hwct_reginit(struct bfa_s *bfa) { struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs; void __iomem *kva = bfa_ioc_bar0(&bfa->ioc); int fn = bfa_ioc_pcifn(&bfa->ioc); if (fn == 0) { bfa_regs->intr_status = (kva + HOSTFN0_INT_STATUS); bfa_regs->intr_mask = (kva + HOSTFN0_INT_MSK); } else { bfa_regs->intr_status = (kva + HOSTFN1_INT_STATUS); bfa_regs->intr_mask = (kva + HOSTFN1_INT_MSK); } }

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jing huangjing huang9698.97%266.67%
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void bfa_hwct2_reginit(struct bfa_s *bfa) { struct bfa_iocfc_regs_s *bfa_regs = &bfa->iocfc.bfa_regs; void __iomem *kva = bfa_ioc_bar0(&bfa->ioc); bfa_regs->intr_status = (kva + CT2_HOSTFN_INT_STATUS); bfa_regs->intr_mask = (kva + CT2_HOSTFN_INTR_MASK); }

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krishna gudipatikrishna gudipati3054.55%150.00%
jing huangjing huang2545.45%150.00%
Total55100.00%2100.00%


void bfa_hwct_reqq_ack(struct bfa_s *bfa, int reqq) { u32 r32; r32 = readl(bfa->iocfc.bfa_regs.cpe_q_ctrl[reqq]); writel(r32, bfa->iocfc.bfa_regs.cpe_q_ctrl[reqq]); }

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krishna gudipatikrishna gudipati4389.58%133.33%
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Total48100.00%3100.00%

/* * Actions to respond RME Interrupt for Catapult ASIC: * - Write 1 to Interrupt Status register (INTx only - done in bfa_intx()) * - Acknowledge by writing to RME Queue Control register * - Update CI */
void bfa_hwct_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci) { u32 r32; r32 = readl(bfa->iocfc.bfa_regs.rme_q_ctrl[rspq]); writel(r32, bfa->iocfc.bfa_regs.rme_q_ctrl[rspq]); bfa_rspq_ci(bfa, rspq) = ci; writel(ci, bfa->iocfc.bfa_regs.rme_q_ci[rspq]); mmiowb(); }

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/* * Actions to respond RME Interrupt for Catapult2 ASIC: * - Write 1 to Interrupt Status register (INTx only - done in bfa_intx()) * - Update CI */
void bfa_hwct2_rspq_ack(struct bfa_s *bfa, int rspq, u32 ci) { bfa_rspq_ci(bfa, rspq) = ci; writel(ci, bfa->iocfc.bfa_regs.rme_q_ci[rspq]); mmiowb(); }

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krishna gudipatikrishna gudipati4397.73%150.00%
jing huangjing huang12.27%150.00%
Total44100.00%2100.00%


void bfa_hwct_msix_getvecs(struct bfa_s *bfa, u32 *msix_vecs_bmap, u32 *num_vecs, u32 *max_vec_bit) { *msix_vecs_bmap = (1 << BFI_MSIX_CT_MAX) - 1; *max_vec_bit = (1 << (BFI_MSIX_CT_MAX - 1)); *num_vecs = BFI_MSIX_CT_MAX; }

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jing huangjing huang4894.12%150.00%
krishna gudipatikrishna gudipati35.88%150.00%
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/* * Setup MSI-X vector for catapult */
void bfa_hwct_msix_init(struct bfa_s *bfa, int nvecs) { WARN_ON((nvecs != 1) && (nvecs != BFI_MSIX_CT_MAX)); bfa_trc(bfa, nvecs); bfa->msix.nvecs = nvecs; bfa_hwct_msix_uninstall(bfa); }

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jing huangjing huang4797.92%266.67%
krishna gudipatikrishna gudipati12.08%133.33%
Total48100.00%3100.00%


void bfa_hwct_msix_ctrl_install(struct bfa_s *bfa) { if (bfa->msix.nvecs == 0) return; if (bfa->msix.nvecs == 1) bfa->msix.handler[BFI_MSIX_LPU_ERR_CT] = bfa_msix_all; else bfa->msix.handler[BFI_MSIX_LPU_ERR_CT] = bfa_msix_lpu_err; }

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void bfa_hwct_msix_queue_install(struct bfa_s *bfa) { int i; if (bfa->msix.nvecs == 0) return; if (bfa->msix.nvecs == 1) { for (i = BFI_MSIX_CPE_QMIN_CT; i < BFI_MSIX_CT_MAX; i++) bfa->msix.handler[i] = bfa_msix_all; return; } for (i = BFI_MSIX_CPE_QMIN_CT; i <= BFI_MSIX_CPE_QMAX_CT; i++) bfa->msix.handler[i] = bfa_msix_reqq; for (i = BFI_MSIX_RME_QMIN_CT; i <= BFI_MSIX_RME_QMAX_CT; i++) bfa->msix.handler[i] = bfa_msix_rspq; }

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Total109100.00%3100.00%


void bfa_hwct_msix_uninstall(struct bfa_s *bfa) { int i; for (i = 0; i < BFI_MSIX_CT_MAX; i++) bfa->msix.handler[i] = bfa_hwct_msix_dummy; }

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krishna gudipatikrishna gudipati12.70%150.00%
Total37100.00%2100.00%

/* * Enable MSI-X vectors */
void bfa_hwct_isr_mode_set(struct bfa_s *bfa, bfa_boolean_t msix) { bfa_trc(bfa, 0); bfa_ioc_isr_mode_set(&bfa->ioc, msix); }

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void bfa_hwct_msix_get_rme_range(struct bfa_s *bfa, u32 *start, u32 *end) { *start = BFI_MSIX_RME_QMIN_CT; *end = BFI_MSIX_RME_QMAX_CT; }

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jing huangjing huang2692.86%150.00%
krishna gudipatikrishna gudipati27.14%150.00%
Total28100.00%2100.00%


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jing huangjing huang48768.11%541.67%
krishna gudipatikrishna gudipati22431.33%541.67%
maggie zhangmaggie zhang30.42%18.33%
anil gurumurthyanil gurumurthy10.14%18.33%
Total715100.00%12100.00%
Directory: drivers/scsi/bfa
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