![Baoyou Xie](/assets/img/avatar_default.png)
We get 1 warning when building kernel with W=1: drivers/scsi/aacraid/src.c:616:5: warning: no previous prototype for 'aac_src_select_comm' [-Wmissing-prototypes] In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. so this patch marks this function with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dave Carroll <david.carroll@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
1019 lines
25 KiB
C
1019 lines
25 KiB
C
/*
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* Adaptec AAC series RAID controller driver
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* (c) Copyright 2001 Red Hat Inc.
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*
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* based on the old aacraid driver that is..
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* Adaptec aacraid device driver for Linux.
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*
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* Copyright (c) 2000-2010 Adaptec, Inc.
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* 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Module Name:
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* src.c
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*
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* Abstract: Hardware Device Interface for PMC SRC based controllers
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/spinlock.h>
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#include <linux/slab.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <linux/completion.h>
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#include <linux/time.h>
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#include <linux/interrupt.h>
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#include <scsi/scsi_host.h>
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#include "aacraid.h"
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static int aac_src_get_sync_status(struct aac_dev *dev);
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static irqreturn_t aac_src_intr_message(int irq, void *dev_id)
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{
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struct aac_msix_ctx *ctx;
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struct aac_dev *dev;
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unsigned long bellbits, bellbits_shifted;
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int vector_no;
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int isFastResponse, mode;
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u32 index, handle;
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ctx = (struct aac_msix_ctx *)dev_id;
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dev = ctx->dev;
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vector_no = ctx->vector_no;
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if (dev->msi_enabled) {
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mode = AAC_INT_MODE_MSI;
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if (vector_no == 0) {
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bellbits = src_readl(dev, MUnit.ODR_MSI);
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if (bellbits & 0x40000)
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mode |= AAC_INT_MODE_AIF;
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if (bellbits & 0x1000)
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mode |= AAC_INT_MODE_SYNC;
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}
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} else {
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mode = AAC_INT_MODE_INTX;
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bellbits = src_readl(dev, MUnit.ODR_R);
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if (bellbits & PmDoorBellResponseSent) {
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bellbits = PmDoorBellResponseSent;
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src_writel(dev, MUnit.ODR_C, bellbits);
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src_readl(dev, MUnit.ODR_C);
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} else {
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bellbits_shifted = (bellbits >> SRC_ODR_SHIFT);
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src_writel(dev, MUnit.ODR_C, bellbits);
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src_readl(dev, MUnit.ODR_C);
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if (bellbits_shifted & DoorBellAifPending)
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mode |= AAC_INT_MODE_AIF;
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else if (bellbits_shifted & OUTBOUNDDOORBELL_0)
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mode |= AAC_INT_MODE_SYNC;
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}
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}
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if (mode & AAC_INT_MODE_SYNC) {
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unsigned long sflags;
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struct list_head *entry;
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int send_it = 0;
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extern int aac_sync_mode;
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if (!aac_sync_mode && !dev->msi_enabled) {
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src_writel(dev, MUnit.ODR_C, bellbits);
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src_readl(dev, MUnit.ODR_C);
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}
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if (dev->sync_fib) {
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if (dev->sync_fib->callback)
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dev->sync_fib->callback(dev->sync_fib->callback_data,
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dev->sync_fib);
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spin_lock_irqsave(&dev->sync_fib->event_lock, sflags);
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if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) {
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dev->management_fib_count--;
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up(&dev->sync_fib->event_wait);
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}
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spin_unlock_irqrestore(&dev->sync_fib->event_lock,
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sflags);
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spin_lock_irqsave(&dev->sync_lock, sflags);
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if (!list_empty(&dev->sync_fib_list)) {
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entry = dev->sync_fib_list.next;
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dev->sync_fib = list_entry(entry,
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struct fib,
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fiblink);
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list_del(entry);
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send_it = 1;
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} else {
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dev->sync_fib = NULL;
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}
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spin_unlock_irqrestore(&dev->sync_lock, sflags);
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if (send_it) {
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aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB,
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(u32)dev->sync_fib->hw_fib_pa,
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0, 0, 0, 0, 0,
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NULL, NULL, NULL, NULL, NULL);
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}
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}
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if (!dev->msi_enabled)
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mode = 0;
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}
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if (mode & AAC_INT_MODE_AIF) {
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/* handle AIF */
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if (dev->aif_thread && dev->fsa_dev)
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aac_intr_normal(dev, 0, 2, 0, NULL);
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if (dev->msi_enabled)
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aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
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mode = 0;
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}
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if (mode) {
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index = dev->host_rrq_idx[vector_no];
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for (;;) {
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isFastResponse = 0;
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/* remove toggle bit (31) */
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handle = (dev->host_rrq[index] & 0x7fffffff);
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/* check fast response bit (30) */
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if (handle & 0x40000000)
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isFastResponse = 1;
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handle &= 0x0000ffff;
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if (handle == 0)
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break;
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if (dev->msi_enabled && dev->max_msix > 1)
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atomic_dec(&dev->rrq_outstanding[vector_no]);
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dev->host_rrq[index++] = 0;
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aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
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if (index == (vector_no + 1) * dev->vector_cap)
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index = vector_no * dev->vector_cap;
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dev->host_rrq_idx[vector_no] = index;
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}
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mode = 0;
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}
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return IRQ_HANDLED;
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}
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/**
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* aac_src_disable_interrupt - Disable interrupts
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* @dev: Adapter
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*/
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static void aac_src_disable_interrupt(struct aac_dev *dev)
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{
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src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
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}
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/**
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* aac_src_enable_interrupt_message - Enable interrupts
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* @dev: Adapter
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*/
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static void aac_src_enable_interrupt_message(struct aac_dev *dev)
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{
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aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT);
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}
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/**
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* src_sync_cmd - send a command and wait
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* @dev: Adapter
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* @command: Command to execute
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* @p1: first parameter
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* @ret: adapter status
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*
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* This routine will send a synchronous command to the adapter and wait
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* for its completion.
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*/
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static int src_sync_cmd(struct aac_dev *dev, u32 command,
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u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6,
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u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4)
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{
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unsigned long start;
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unsigned long delay;
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int ok;
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/*
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* Write the command into Mailbox 0
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*/
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writel(command, &dev->IndexRegs->Mailbox[0]);
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/*
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* Write the parameters into Mailboxes 1 - 6
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*/
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writel(p1, &dev->IndexRegs->Mailbox[1]);
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writel(p2, &dev->IndexRegs->Mailbox[2]);
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writel(p3, &dev->IndexRegs->Mailbox[3]);
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writel(p4, &dev->IndexRegs->Mailbox[4]);
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/*
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* Clear the synch command doorbell to start on a clean slate.
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*/
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if (!dev->msi_enabled)
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src_writel(dev,
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MUnit.ODR_C,
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OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
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/*
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* Disable doorbell interrupts
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*/
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src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff);
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/*
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* Force the completion of the mask register write before issuing
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* the interrupt.
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*/
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src_readl(dev, MUnit.OIMR);
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/*
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* Signal that there is a new synch command
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*/
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src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT);
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if (!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) {
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ok = 0;
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start = jiffies;
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if (command == IOP_RESET_ALWAYS) {
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/* Wait up to 10 sec */
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delay = 10*HZ;
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} else {
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/* Wait up to 5 minutes */
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delay = 300*HZ;
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}
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while (time_before(jiffies, start+delay)) {
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udelay(5); /* Delay 5 microseconds to let Mon960 get info. */
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/*
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* Mon960 will set doorbell0 bit when it has completed the command.
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*/
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if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) {
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/*
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* Clear the doorbell.
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*/
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if (dev->msi_enabled)
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aac_src_access_devreg(dev,
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AAC_CLEAR_SYNC_BIT);
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else
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src_writel(dev,
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MUnit.ODR_C,
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OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
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ok = 1;
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break;
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}
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/*
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* Yield the processor in case we are slow
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*/
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msleep(1);
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}
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if (unlikely(ok != 1)) {
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/*
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* Restore interrupt mask even though we timed out
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*/
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aac_adapter_enable_int(dev);
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return -ETIMEDOUT;
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}
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/*
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* Pull the synch status from Mailbox 0.
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*/
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if (status)
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*status = readl(&dev->IndexRegs->Mailbox[0]);
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if (r1)
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*r1 = readl(&dev->IndexRegs->Mailbox[1]);
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if (r2)
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*r2 = readl(&dev->IndexRegs->Mailbox[2]);
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if (r3)
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*r3 = readl(&dev->IndexRegs->Mailbox[3]);
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if (r4)
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*r4 = readl(&dev->IndexRegs->Mailbox[4]);
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if (command == GET_COMM_PREFERRED_SETTINGS)
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dev->max_msix =
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readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF;
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/*
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* Clear the synch command doorbell.
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*/
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if (!dev->msi_enabled)
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src_writel(dev,
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MUnit.ODR_C,
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OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT);
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}
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/*
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* Restore interrupt mask
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*/
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aac_adapter_enable_int(dev);
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return 0;
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}
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/**
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* aac_src_interrupt_adapter - interrupt adapter
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* @dev: Adapter
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*
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* Send an interrupt to the i960 and breakpoint it.
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*/
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static void aac_src_interrupt_adapter(struct aac_dev *dev)
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{
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src_sync_cmd(dev, BREAKPOINT_REQUEST,
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0, 0, 0, 0, 0, 0,
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NULL, NULL, NULL, NULL, NULL);
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}
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/**
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* aac_src_notify_adapter - send an event to the adapter
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* @dev: Adapter
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* @event: Event to send
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*
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* Notify the i960 that something it probably cares about has
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* happened.
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*/
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static void aac_src_notify_adapter(struct aac_dev *dev, u32 event)
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{
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switch (event) {
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case AdapNormCmdQue:
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src_writel(dev, MUnit.ODR_C,
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INBOUNDDOORBELL_1 << SRC_ODR_SHIFT);
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break;
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case HostNormRespNotFull:
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src_writel(dev, MUnit.ODR_C,
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INBOUNDDOORBELL_4 << SRC_ODR_SHIFT);
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break;
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case AdapNormRespQue:
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src_writel(dev, MUnit.ODR_C,
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INBOUNDDOORBELL_2 << SRC_ODR_SHIFT);
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break;
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case HostNormCmdNotFull:
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src_writel(dev, MUnit.ODR_C,
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INBOUNDDOORBELL_3 << SRC_ODR_SHIFT);
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break;
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case FastIo:
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src_writel(dev, MUnit.ODR_C,
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INBOUNDDOORBELL_6 << SRC_ODR_SHIFT);
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break;
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case AdapPrintfDone:
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src_writel(dev, MUnit.ODR_C,
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INBOUNDDOORBELL_5 << SRC_ODR_SHIFT);
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break;
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default:
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BUG();
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break;
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}
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}
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/**
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* aac_src_start_adapter - activate adapter
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* @dev: Adapter
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*
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* Start up processing on an i960 based AAC adapter
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*/
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static void aac_src_start_adapter(struct aac_dev *dev)
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{
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struct aac_init *init;
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int i;
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/* reset host_rrq_idx first */
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for (i = 0; i < dev->max_msix; i++) {
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dev->host_rrq_idx[i] = i * dev->vector_cap;
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atomic_set(&dev->rrq_outstanding[i], 0);
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}
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dev->fibs_pushed_no = 0;
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init = dev->init;
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init->HostElapsedSeconds = cpu_to_le32(get_seconds());
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/* We can only use a 32 bit address here */
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src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa,
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0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL);
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}
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/**
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* aac_src_check_health
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* @dev: device to check if healthy
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*
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* Will attempt to determine if the specified adapter is alive and
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* capable of handling requests, returning 0 if alive.
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*/
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static int aac_src_check_health(struct aac_dev *dev)
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{
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u32 status = src_readl(dev, MUnit.OMR);
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/*
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* Check to see if the board failed any self tests.
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*/
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if (unlikely(status & SELF_TEST_FAILED))
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return -1;
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/*
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* Check to see if the board panic'd.
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*/
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if (unlikely(status & KERNEL_PANIC))
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return (status >> 16) & 0xFF;
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/*
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* Wait for the adapter to be up and running.
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*/
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if (unlikely(!(status & KERNEL_UP_AND_RUNNING)))
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return -3;
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/*
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* Everything is OK
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*/
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return 0;
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}
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/**
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* aac_src_deliver_message
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* @fib: fib to issue
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*
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* Will send a fib, returning 0 if successful.
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*/
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static int aac_src_deliver_message(struct fib *fib)
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{
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struct aac_dev *dev = fib->dev;
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struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue];
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u32 fibsize;
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dma_addr_t address;
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struct aac_fib_xporthdr *pFibX;
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#if !defined(writeq)
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unsigned long flags;
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#endif
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u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size);
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u16 vector_no;
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atomic_inc(&q->numpending);
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if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest &&
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dev->max_msix > 1) {
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vector_no = fib->vector_no;
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fib->hw_fib_va->header.Handle += (vector_no << 16);
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} else {
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vector_no = 0;
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}
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atomic_inc(&dev->rrq_outstanding[vector_no]);
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if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
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/* Calculate the amount to the fibsize bits */
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fibsize = (hdr_size + 127) / 128 - 1;
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if (fibsize > (ALIGN32 - 1))
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return -EMSGSIZE;
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/* New FIB header, 32-bit */
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address = fib->hw_fib_pa;
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fib->hw_fib_va->header.StructType = FIB_MAGIC2;
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fib->hw_fib_va->header.SenderFibAddress = (u32)address;
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fib->hw_fib_va->header.u.TimeStamp = 0;
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BUG_ON(upper_32_bits(address) != 0L);
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address |= fibsize;
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} else {
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/* Calculate the amount to the fibsize bits */
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fibsize = (sizeof(struct aac_fib_xporthdr) + hdr_size + 127) / 128 - 1;
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if (fibsize > (ALIGN32 - 1))
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return -EMSGSIZE;
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/* Fill XPORT header */
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pFibX = (void *)fib->hw_fib_va - sizeof(struct aac_fib_xporthdr);
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pFibX->Handle = cpu_to_le32(fib->hw_fib_va->header.Handle);
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pFibX->HostAddress = cpu_to_le64(fib->hw_fib_pa);
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pFibX->Size = cpu_to_le32(hdr_size);
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/*
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* The xport header has been 32-byte aligned for us so that fibsize
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* can be masked out of this address by hardware. -- BenC
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|
*/
|
|
address = fib->hw_fib_pa - sizeof(struct aac_fib_xporthdr);
|
|
if (address & (ALIGN32 - 1))
|
|
return -EINVAL;
|
|
address |= fibsize;
|
|
}
|
|
#if defined(writeq)
|
|
src_writeq(dev, MUnit.IQ_L, (u64)address);
|
|
#else
|
|
spin_lock_irqsave(&fib->dev->iq_lock, flags);
|
|
src_writel(dev, MUnit.IQ_H, upper_32_bits(address) & 0xffffffff);
|
|
src_writel(dev, MUnit.IQ_L, address & 0xffffffff);
|
|
spin_unlock_irqrestore(&fib->dev->iq_lock, flags);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* aac_src_ioremap
|
|
* @size: mapping resize request
|
|
*
|
|
*/
|
|
static int aac_src_ioremap(struct aac_dev *dev, u32 size)
|
|
{
|
|
if (!size) {
|
|
iounmap(dev->regs.src.bar1);
|
|
dev->regs.src.bar1 = NULL;
|
|
iounmap(dev->regs.src.bar0);
|
|
dev->base = dev->regs.src.bar0 = NULL;
|
|
return 0;
|
|
}
|
|
dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2),
|
|
AAC_MIN_SRC_BAR1_SIZE);
|
|
dev->base = NULL;
|
|
if (dev->regs.src.bar1 == NULL)
|
|
return -1;
|
|
dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
|
|
if (dev->base == NULL) {
|
|
iounmap(dev->regs.src.bar1);
|
|
dev->regs.src.bar1 = NULL;
|
|
return -1;
|
|
}
|
|
dev->IndexRegs = &((struct src_registers __iomem *)
|
|
dev->base)->u.tupelo.IndexRegs;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* aac_srcv_ioremap
|
|
* @size: mapping resize request
|
|
*
|
|
*/
|
|
static int aac_srcv_ioremap(struct aac_dev *dev, u32 size)
|
|
{
|
|
if (!size) {
|
|
iounmap(dev->regs.src.bar0);
|
|
dev->base = dev->regs.src.bar0 = NULL;
|
|
return 0;
|
|
}
|
|
dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
|
|
if (dev->base == NULL)
|
|
return -1;
|
|
dev->IndexRegs = &((struct src_registers __iomem *)
|
|
dev->base)->u.denali.IndexRegs;
|
|
return 0;
|
|
}
|
|
|
|
static int aac_src_restart_adapter(struct aac_dev *dev, int bled)
|
|
{
|
|
u32 var, reset_mask;
|
|
|
|
if (bled >= 0) {
|
|
if (bled)
|
|
printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
|
|
dev->name, dev->id, bled);
|
|
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
|
|
bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS,
|
|
0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL);
|
|
if ((bled || (var != 0x00000001)) &&
|
|
!dev->doorbell_mask)
|
|
return -EINVAL;
|
|
else if (dev->doorbell_mask) {
|
|
reset_mask = dev->doorbell_mask;
|
|
bled = 0;
|
|
var = 0x00000001;
|
|
}
|
|
|
|
if ((dev->pdev->device == PMC_DEVICE_S7 ||
|
|
dev->pdev->device == PMC_DEVICE_S8 ||
|
|
dev->pdev->device == PMC_DEVICE_S9) && dev->msi_enabled) {
|
|
aac_src_access_devreg(dev, AAC_ENABLE_INTX);
|
|
dev->msi_enabled = 0;
|
|
msleep(5000); /* Delay 5 seconds */
|
|
}
|
|
|
|
if (!bled && (dev->supplement_adapter_info.SupportedOptions2 &
|
|
AAC_OPTION_DOORBELL_RESET)) {
|
|
src_writel(dev, MUnit.IDR, reset_mask);
|
|
ssleep(45);
|
|
} else {
|
|
src_writel(dev, MUnit.IDR, 0x100);
|
|
ssleep(45);
|
|
}
|
|
}
|
|
|
|
if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC)
|
|
return -ENODEV;
|
|
|
|
if (startup_timeout < 300)
|
|
startup_timeout = 300;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* aac_src_select_comm - Select communications method
|
|
* @dev: Adapter
|
|
* @comm: communications method
|
|
*/
|
|
static int aac_src_select_comm(struct aac_dev *dev, int comm)
|
|
{
|
|
switch (comm) {
|
|
case AAC_COMM_MESSAGE:
|
|
dev->a_ops.adapter_intr = aac_src_intr_message;
|
|
dev->a_ops.adapter_deliver = aac_src_deliver_message;
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* aac_src_init - initialize an Cardinal Frey Bar card
|
|
* @dev: device to configure
|
|
*
|
|
*/
|
|
|
|
int aac_src_init(struct aac_dev *dev)
|
|
{
|
|
unsigned long start;
|
|
unsigned long status;
|
|
int restart = 0;
|
|
int instance = dev->id;
|
|
const char *name = dev->name;
|
|
|
|
dev->a_ops.adapter_ioremap = aac_src_ioremap;
|
|
dev->a_ops.adapter_comm = aac_src_select_comm;
|
|
|
|
dev->base_size = AAC_MIN_SRC_BAR0_SIZE;
|
|
if (aac_adapter_ioremap(dev, dev->base_size)) {
|
|
printk(KERN_WARNING "%s: unable to map adapter.\n", name);
|
|
goto error_iounmap;
|
|
}
|
|
|
|
/* Failure to reset here is an option ... */
|
|
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
|
|
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
|
|
if ((aac_reset_devices || reset_devices) &&
|
|
!aac_src_restart_adapter(dev, 0))
|
|
++restart;
|
|
/*
|
|
* Check to see if the board panic'd while booting.
|
|
*/
|
|
status = src_readl(dev, MUnit.OMR);
|
|
if (status & KERNEL_PANIC) {
|
|
if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
|
|
goto error_iounmap;
|
|
++restart;
|
|
}
|
|
/*
|
|
* Check to see if the board failed any self tests.
|
|
*/
|
|
status = src_readl(dev, MUnit.OMR);
|
|
if (status & SELF_TEST_FAILED) {
|
|
printk(KERN_ERR "%s%d: adapter self-test failed.\n",
|
|
dev->name, instance);
|
|
goto error_iounmap;
|
|
}
|
|
/*
|
|
* Check to see if the monitor panic'd while booting.
|
|
*/
|
|
if (status & MONITOR_PANIC) {
|
|
printk(KERN_ERR "%s%d: adapter monitor panic.\n",
|
|
dev->name, instance);
|
|
goto error_iounmap;
|
|
}
|
|
start = jiffies;
|
|
/*
|
|
* Wait for the adapter to be up and running. Wait up to 3 minutes
|
|
*/
|
|
while (!((status = src_readl(dev, MUnit.OMR)) &
|
|
KERNEL_UP_AND_RUNNING)) {
|
|
if ((restart &&
|
|
(status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
|
|
time_after(jiffies, start+HZ*startup_timeout)) {
|
|
printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
|
|
dev->name, instance, status);
|
|
goto error_iounmap;
|
|
}
|
|
if (!restart &&
|
|
((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
|
|
time_after(jiffies, start + HZ *
|
|
((startup_timeout > 60)
|
|
? (startup_timeout - 60)
|
|
: (startup_timeout / 2))))) {
|
|
if (likely(!aac_src_restart_adapter(dev,
|
|
aac_src_check_health(dev))))
|
|
start = jiffies;
|
|
++restart;
|
|
}
|
|
msleep(1);
|
|
}
|
|
if (restart && aac_commit)
|
|
aac_commit = 1;
|
|
/*
|
|
* Fill in the common function dispatch table.
|
|
*/
|
|
dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
|
|
dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
|
|
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
|
|
dev->a_ops.adapter_notify = aac_src_notify_adapter;
|
|
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
|
|
dev->a_ops.adapter_check_health = aac_src_check_health;
|
|
dev->a_ops.adapter_restart = aac_src_restart_adapter;
|
|
dev->a_ops.adapter_start = aac_src_start_adapter;
|
|
|
|
/*
|
|
* First clear out all interrupts. Then enable the one's that we
|
|
* can handle.
|
|
*/
|
|
aac_adapter_comm(dev, AAC_COMM_MESSAGE);
|
|
aac_adapter_disable_int(dev);
|
|
src_writel(dev, MUnit.ODR_C, 0xffffffff);
|
|
aac_adapter_enable_int(dev);
|
|
|
|
if (aac_init_adapter(dev) == NULL)
|
|
goto error_iounmap;
|
|
if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1)
|
|
goto error_iounmap;
|
|
|
|
dev->msi = !pci_enable_msi(dev->pdev);
|
|
|
|
dev->aac_msix[0].vector_no = 0;
|
|
dev->aac_msix[0].dev = dev;
|
|
|
|
if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
|
|
IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) {
|
|
|
|
if (dev->msi)
|
|
pci_disable_msi(dev->pdev);
|
|
|
|
printk(KERN_ERR "%s%d: Interrupt unavailable.\n",
|
|
name, instance);
|
|
goto error_iounmap;
|
|
}
|
|
dev->dbg_base = pci_resource_start(dev->pdev, 2);
|
|
dev->dbg_base_mapped = dev->regs.src.bar1;
|
|
dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE;
|
|
dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
|
|
|
|
aac_adapter_enable_int(dev);
|
|
|
|
if (!dev->sync_mode) {
|
|
/*
|
|
* Tell the adapter that all is configured, and it can
|
|
* start accepting requests
|
|
*/
|
|
aac_src_start_adapter(dev);
|
|
}
|
|
return 0;
|
|
|
|
error_iounmap:
|
|
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* aac_srcv_init - initialize an SRCv card
|
|
* @dev: device to configure
|
|
*
|
|
*/
|
|
|
|
int aac_srcv_init(struct aac_dev *dev)
|
|
{
|
|
unsigned long start;
|
|
unsigned long status;
|
|
int restart = 0;
|
|
int instance = dev->id;
|
|
const char *name = dev->name;
|
|
|
|
dev->a_ops.adapter_ioremap = aac_srcv_ioremap;
|
|
dev->a_ops.adapter_comm = aac_src_select_comm;
|
|
|
|
dev->base_size = AAC_MIN_SRCV_BAR0_SIZE;
|
|
if (aac_adapter_ioremap(dev, dev->base_size)) {
|
|
printk(KERN_WARNING "%s: unable to map adapter.\n", name);
|
|
goto error_iounmap;
|
|
}
|
|
|
|
/* Failure to reset here is an option ... */
|
|
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
|
|
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
|
|
if ((aac_reset_devices || reset_devices) &&
|
|
!aac_src_restart_adapter(dev, 0))
|
|
++restart;
|
|
/*
|
|
* Check to see if flash update is running.
|
|
* Wait for the adapter to be up and running. Wait up to 5 minutes
|
|
*/
|
|
status = src_readl(dev, MUnit.OMR);
|
|
if (status & FLASH_UPD_PENDING) {
|
|
start = jiffies;
|
|
do {
|
|
status = src_readl(dev, MUnit.OMR);
|
|
if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) {
|
|
printk(KERN_ERR "%s%d: adapter flash update failed.\n",
|
|
dev->name, instance);
|
|
goto error_iounmap;
|
|
}
|
|
} while (!(status & FLASH_UPD_SUCCESS) &&
|
|
!(status & FLASH_UPD_FAILED));
|
|
/* Delay 10 seconds.
|
|
* Because right now FW is doing a soft reset,
|
|
* do not read scratch pad register at this time
|
|
*/
|
|
ssleep(10);
|
|
}
|
|
/*
|
|
* Check to see if the board panic'd while booting.
|
|
*/
|
|
status = src_readl(dev, MUnit.OMR);
|
|
if (status & KERNEL_PANIC) {
|
|
if (aac_src_restart_adapter(dev, aac_src_check_health(dev)))
|
|
goto error_iounmap;
|
|
++restart;
|
|
}
|
|
/*
|
|
* Check to see if the board failed any self tests.
|
|
*/
|
|
status = src_readl(dev, MUnit.OMR);
|
|
if (status & SELF_TEST_FAILED) {
|
|
printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
|
|
goto error_iounmap;
|
|
}
|
|
/*
|
|
* Check to see if the monitor panic'd while booting.
|
|
*/
|
|
if (status & MONITOR_PANIC) {
|
|
printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
|
|
goto error_iounmap;
|
|
}
|
|
start = jiffies;
|
|
/*
|
|
* Wait for the adapter to be up and running. Wait up to 3 minutes
|
|
*/
|
|
while (!((status = src_readl(dev, MUnit.OMR)) &
|
|
KERNEL_UP_AND_RUNNING) ||
|
|
status == 0xffffffff) {
|
|
if ((restart &&
|
|
(status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) ||
|
|
time_after(jiffies, start+HZ*startup_timeout)) {
|
|
printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n",
|
|
dev->name, instance, status);
|
|
goto error_iounmap;
|
|
}
|
|
if (!restart &&
|
|
((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) ||
|
|
time_after(jiffies, start + HZ *
|
|
((startup_timeout > 60)
|
|
? (startup_timeout - 60)
|
|
: (startup_timeout / 2))))) {
|
|
if (likely(!aac_src_restart_adapter(dev, aac_src_check_health(dev))))
|
|
start = jiffies;
|
|
++restart;
|
|
}
|
|
msleep(1);
|
|
}
|
|
if (restart && aac_commit)
|
|
aac_commit = 1;
|
|
/*
|
|
* Fill in the common function dispatch table.
|
|
*/
|
|
dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter;
|
|
dev->a_ops.adapter_disable_int = aac_src_disable_interrupt;
|
|
dev->a_ops.adapter_enable_int = aac_src_disable_interrupt;
|
|
dev->a_ops.adapter_notify = aac_src_notify_adapter;
|
|
dev->a_ops.adapter_sync_cmd = src_sync_cmd;
|
|
dev->a_ops.adapter_check_health = aac_src_check_health;
|
|
dev->a_ops.adapter_restart = aac_src_restart_adapter;
|
|
dev->a_ops.adapter_start = aac_src_start_adapter;
|
|
|
|
/*
|
|
* First clear out all interrupts. Then enable the one's that we
|
|
* can handle.
|
|
*/
|
|
aac_adapter_comm(dev, AAC_COMM_MESSAGE);
|
|
aac_adapter_disable_int(dev);
|
|
src_writel(dev, MUnit.ODR_C, 0xffffffff);
|
|
aac_adapter_enable_int(dev);
|
|
|
|
if (aac_init_adapter(dev) == NULL)
|
|
goto error_iounmap;
|
|
if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2)
|
|
goto error_iounmap;
|
|
if (dev->msi_enabled)
|
|
aac_src_access_devreg(dev, AAC_ENABLE_MSIX);
|
|
|
|
if (aac_acquire_irq(dev))
|
|
goto error_iounmap;
|
|
|
|
dev->dbg_base = dev->base_start;
|
|
dev->dbg_base_mapped = dev->base;
|
|
dev->dbg_size = dev->base_size;
|
|
dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
|
|
|
|
aac_adapter_enable_int(dev);
|
|
|
|
if (!dev->sync_mode) {
|
|
/*
|
|
* Tell the adapter that all is configured, and it can
|
|
* start accepting requests
|
|
*/
|
|
aac_src_start_adapter(dev);
|
|
}
|
|
return 0;
|
|
|
|
error_iounmap:
|
|
|
|
return -1;
|
|
}
|
|
|
|
void aac_src_access_devreg(struct aac_dev *dev, int mode)
|
|
{
|
|
u_int32_t val;
|
|
|
|
switch (mode) {
|
|
case AAC_ENABLE_INTERRUPT:
|
|
src_writel(dev,
|
|
MUnit.OIMR,
|
|
dev->OIMR = (dev->msi_enabled ?
|
|
AAC_INT_ENABLE_TYPE1_MSIX :
|
|
AAC_INT_ENABLE_TYPE1_INTX));
|
|
break;
|
|
|
|
case AAC_DISABLE_INTERRUPT:
|
|
src_writel(dev,
|
|
MUnit.OIMR,
|
|
dev->OIMR = AAC_INT_DISABLE_ALL);
|
|
break;
|
|
|
|
case AAC_ENABLE_MSIX:
|
|
/* set bit 6 */
|
|
val = src_readl(dev, MUnit.IDR);
|
|
val |= 0x40;
|
|
src_writel(dev, MUnit.IDR, val);
|
|
src_readl(dev, MUnit.IDR);
|
|
/* unmask int. */
|
|
val = PMC_ALL_INTERRUPT_BITS;
|
|
src_writel(dev, MUnit.IOAR, val);
|
|
val = src_readl(dev, MUnit.OIMR);
|
|
src_writel(dev,
|
|
MUnit.OIMR,
|
|
val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0)));
|
|
break;
|
|
|
|
case AAC_DISABLE_MSIX:
|
|
/* reset bit 6 */
|
|
val = src_readl(dev, MUnit.IDR);
|
|
val &= ~0x40;
|
|
src_writel(dev, MUnit.IDR, val);
|
|
src_readl(dev, MUnit.IDR);
|
|
break;
|
|
|
|
case AAC_CLEAR_AIF_BIT:
|
|
/* set bit 5 */
|
|
val = src_readl(dev, MUnit.IDR);
|
|
val |= 0x20;
|
|
src_writel(dev, MUnit.IDR, val);
|
|
src_readl(dev, MUnit.IDR);
|
|
break;
|
|
|
|
case AAC_CLEAR_SYNC_BIT:
|
|
/* set bit 4 */
|
|
val = src_readl(dev, MUnit.IDR);
|
|
val |= 0x10;
|
|
src_writel(dev, MUnit.IDR, val);
|
|
src_readl(dev, MUnit.IDR);
|
|
break;
|
|
|
|
case AAC_ENABLE_INTX:
|
|
/* set bit 7 */
|
|
val = src_readl(dev, MUnit.IDR);
|
|
val |= 0x80;
|
|
src_writel(dev, MUnit.IDR, val);
|
|
src_readl(dev, MUnit.IDR);
|
|
/* unmask int. */
|
|
val = PMC_ALL_INTERRUPT_BITS;
|
|
src_writel(dev, MUnit.IOAR, val);
|
|
src_readl(dev, MUnit.IOAR);
|
|
val = src_readl(dev, MUnit.OIMR);
|
|
src_writel(dev, MUnit.OIMR,
|
|
val & (~(PMC_GLOBAL_INT_BIT2)));
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int aac_src_get_sync_status(struct aac_dev *dev)
|
|
{
|
|
|
|
int val;
|
|
|
|
if (dev->msi_enabled)
|
|
val = src_readl(dev, MUnit.ODR_MSI) & 0x1000 ? 1 : 0;
|
|
else
|
|
val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT;
|
|
|
|
return val;
|
|
}
|