From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/scsi/bfa/bfa_hw_ct.c | 178 ++++++++++++++++++++++++++++++++++++ 1 file changed, 178 insertions(+) create mode 100644 kernel/drivers/scsi/bfa/bfa_hw_ct.c (limited to 'kernel/drivers/scsi/bfa/bfa_hw_ct.c') diff --git a/kernel/drivers/scsi/bfa/bfa_hw_ct.c b/kernel/drivers/scsi/bfa/bfa_hw_ct.c new file mode 100644 index 000000000..637527f48 --- /dev/null +++ b/kernel/drivers/scsi/bfa/bfa_hw_ct.c @@ -0,0 +1,178 @@ +/* + * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. + * All rights reserved + * www.brocade.com + * + * Linux driver for Brocade 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) +{ +} + +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); + } +} + +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); +} + +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]); +} + +/* + * 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(); +} + +/* + * 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(); +} + +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; +} + +/* + * 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); +} + +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; +} + +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; +} + +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; +} + +/* + * 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); +} + +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; +} -- cgit 1.2.3-korg