Release 4.11 drivers/scsi/bfa/bfa_hw_ct.c

/*
 * 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)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
13
100.00%
1
100.00%
Total
13
100.00%
1
100.00%


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);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
96
98.97%
2
66.67%
Krishna Gudipati
1
1.03%
1
33.33%
Total
97
100.00%
3
100.00%


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);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Krishna Gudipati
30
54.55%
1
50.00%
Jing Huang
25
45.45%
1
50.00%
Total
55
100.00%
2
100.00%


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]);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Krishna Gudipati
43
89.58%
1
33.33%
Jing Huang
5
10.42%
2
66.67%
Total
48
100.00%
3
100.00%

/*
 * 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();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
46
58.23%
2
50.00%
Krishna Gudipati
33
41.77%
2
50.00%
Total
79
100.00%
4
100.00%

/*
 * 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();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Krishna Gudipati
43
97.73%
1
50.00%
Jing Huang
1
2.27%
1
50.00%
Total
44
100.00%
2
100.00%


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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
48
94.12%
1
50.00%
Krishna Gudipati
3
5.88%
1
50.00%
Total
51
100.00%
2
100.00%

/*
 * 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);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
47
97.92%
2
66.67%
Krishna Gudipati
1
2.08%
1
33.33%
Total
48
100.00%
3
100.00%


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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Krishna Gudipati
53
98.15%
1
50.00%
Jing Huang
1
1.85%
1
50.00%
Total
54
100.00%
2
100.00%


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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
99
90.83%
1
33.33%
Krishna Gudipati
10
9.17%
2
66.67%
Total
109
100.00%
3
100.00%


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;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
36
97.30%
1
50.00%
Krishna Gudipati
1
2.70%
1
50.00%
Total
37
100.00%
2
100.00%

/*
 * 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);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
30
100.00%
1
100.00%
Total
30
100.00%
1
100.00%


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;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
26
92.86%
1
50.00%
Krishna Gudipati
2
7.14%
1
50.00%
Total
28
100.00%
2
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Jing Huang
487
68.11%
5
41.67%
Krishna Gudipati
224
31.33%
5
41.67%
Maggie Zhang
3
0.42%
1
8.33%
Anil Gurumurthy
1
0.14%
1
8.33%
Total
715
100.00%
12
100.00%
Directory: drivers/scsi/bfa

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.