mirror of https://gitee.com/openkylin/linux.git
911 lines
26 KiB
C
911 lines
26 KiB
C
/*
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* PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
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*
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* Copyright (c) 2008-2009 USI Co., Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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*/
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#include <linux/slab.h>
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#include "pm8001_sas.h"
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#include "pm8001_chips.h"
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static struct scsi_transport_template *pm8001_stt;
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static const struct pm8001_chip_info pm8001_chips[] = {
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[chip_8001] = { 8, &pm8001_8001_dispatch,},
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};
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static int pm8001_id;
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LIST_HEAD(hba_list);
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struct workqueue_struct *pm8001_wq;
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/**
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* The main structure which LLDD must register for scsi core.
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*/
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static struct scsi_host_template pm8001_sht = {
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.module = THIS_MODULE,
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.name = DRV_NAME,
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.queuecommand = sas_queuecommand,
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.target_alloc = sas_target_alloc,
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.slave_configure = sas_slave_configure,
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.slave_destroy = sas_slave_destroy,
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.scan_finished = pm8001_scan_finished,
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.scan_start = pm8001_scan_start,
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.change_queue_depth = sas_change_queue_depth,
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.change_queue_type = sas_change_queue_type,
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.bios_param = sas_bios_param,
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.can_queue = 1,
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.cmd_per_lun = 1,
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.this_id = -1,
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.sg_tablesize = SG_ALL,
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.max_sectors = SCSI_DEFAULT_MAX_SECTORS,
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.use_clustering = ENABLE_CLUSTERING,
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.eh_device_reset_handler = sas_eh_device_reset_handler,
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.eh_bus_reset_handler = sas_eh_bus_reset_handler,
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.slave_alloc = sas_slave_alloc,
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.target_destroy = sas_target_destroy,
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.ioctl = sas_ioctl,
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.shost_attrs = pm8001_host_attrs,
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};
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/**
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* Sas layer call this function to execute specific task.
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*/
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static struct sas_domain_function_template pm8001_transport_ops = {
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.lldd_dev_found = pm8001_dev_found,
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.lldd_dev_gone = pm8001_dev_gone,
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.lldd_execute_task = pm8001_queue_command,
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.lldd_control_phy = pm8001_phy_control,
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.lldd_abort_task = pm8001_abort_task,
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.lldd_abort_task_set = pm8001_abort_task_set,
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.lldd_clear_aca = pm8001_clear_aca,
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.lldd_clear_task_set = pm8001_clear_task_set,
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.lldd_I_T_nexus_reset = pm8001_I_T_nexus_reset,
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.lldd_lu_reset = pm8001_lu_reset,
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.lldd_query_task = pm8001_query_task,
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};
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/**
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*pm8001_phy_init - initiate our adapter phys
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*@pm8001_ha: our hba structure.
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*@phy_id: phy id.
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*/
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static void __devinit pm8001_phy_init(struct pm8001_hba_info *pm8001_ha,
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int phy_id)
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{
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struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
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struct asd_sas_phy *sas_phy = &phy->sas_phy;
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phy->phy_state = 0;
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phy->pm8001_ha = pm8001_ha;
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sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0;
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sas_phy->class = SAS;
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sas_phy->iproto = SAS_PROTOCOL_ALL;
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sas_phy->tproto = 0;
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sas_phy->type = PHY_TYPE_PHYSICAL;
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sas_phy->role = PHY_ROLE_INITIATOR;
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sas_phy->oob_mode = OOB_NOT_CONNECTED;
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sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
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sas_phy->id = phy_id;
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sas_phy->sas_addr = &pm8001_ha->sas_addr[0];
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sas_phy->frame_rcvd = &phy->frame_rcvd[0];
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sas_phy->ha = (struct sas_ha_struct *)pm8001_ha->shost->hostdata;
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sas_phy->lldd_phy = phy;
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}
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/**
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*pm8001_free - free hba
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*@pm8001_ha: our hba structure.
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*
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*/
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static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
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{
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int i;
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if (!pm8001_ha)
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return;
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for (i = 0; i < USI_MAX_MEMCNT; i++) {
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if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) {
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pci_free_consistent(pm8001_ha->pdev,
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pm8001_ha->memoryMap.region[i].element_size,
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pm8001_ha->memoryMap.region[i].virt_ptr,
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pm8001_ha->memoryMap.region[i].phys_addr);
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}
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}
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PM8001_CHIP_DISP->chip_iounmap(pm8001_ha);
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if (pm8001_ha->shost)
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scsi_host_put(pm8001_ha->shost);
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flush_workqueue(pm8001_wq);
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kfree(pm8001_ha->tags);
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kfree(pm8001_ha);
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}
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#ifdef PM8001_USE_TASKLET
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static void pm8001_tasklet(unsigned long opaque)
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{
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struct pm8001_hba_info *pm8001_ha;
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pm8001_ha = (struct pm8001_hba_info *)opaque;
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if (unlikely(!pm8001_ha))
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BUG_ON(1);
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PM8001_CHIP_DISP->isr(pm8001_ha);
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}
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#endif
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/**
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* pm8001_interrupt - when HBA originate a interrupt,we should invoke this
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* dispatcher to handle each case.
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* @irq: irq number.
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* @opaque: the passed general host adapter struct
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*/
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static irqreturn_t pm8001_interrupt(int irq, void *opaque)
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{
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struct pm8001_hba_info *pm8001_ha;
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irqreturn_t ret = IRQ_HANDLED;
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struct sas_ha_struct *sha = opaque;
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pm8001_ha = sha->lldd_ha;
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if (unlikely(!pm8001_ha))
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return IRQ_NONE;
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if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha))
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return IRQ_NONE;
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#ifdef PM8001_USE_TASKLET
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tasklet_schedule(&pm8001_ha->tasklet);
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#else
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ret = PM8001_CHIP_DISP->isr(pm8001_ha);
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#endif
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return ret;
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}
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/**
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* pm8001_alloc - initiate our hba structure and 6 DMAs area.
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* @pm8001_ha:our hba structure.
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*
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*/
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static int __devinit pm8001_alloc(struct pm8001_hba_info *pm8001_ha)
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{
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int i;
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spin_lock_init(&pm8001_ha->lock);
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for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
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pm8001_phy_init(pm8001_ha, i);
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pm8001_ha->port[i].wide_port_phymap = 0;
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pm8001_ha->port[i].port_attached = 0;
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pm8001_ha->port[i].port_state = 0;
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INIT_LIST_HEAD(&pm8001_ha->port[i].list);
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}
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pm8001_ha->tags = kzalloc(PM8001_MAX_CCB, GFP_KERNEL);
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if (!pm8001_ha->tags)
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goto err_out;
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/* MPI Memory region 1 for AAP Event Log for fw */
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pm8001_ha->memoryMap.region[AAP1].num_elements = 1;
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pm8001_ha->memoryMap.region[AAP1].element_size = PM8001_EVENT_LOG_SIZE;
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pm8001_ha->memoryMap.region[AAP1].total_len = PM8001_EVENT_LOG_SIZE;
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pm8001_ha->memoryMap.region[AAP1].alignment = 32;
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/* MPI Memory region 2 for IOP Event Log for fw */
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pm8001_ha->memoryMap.region[IOP].num_elements = 1;
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pm8001_ha->memoryMap.region[IOP].element_size = PM8001_EVENT_LOG_SIZE;
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pm8001_ha->memoryMap.region[IOP].total_len = PM8001_EVENT_LOG_SIZE;
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pm8001_ha->memoryMap.region[IOP].alignment = 32;
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/* MPI Memory region 3 for consumer Index of inbound queues */
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pm8001_ha->memoryMap.region[CI].num_elements = 1;
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pm8001_ha->memoryMap.region[CI].element_size = 4;
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pm8001_ha->memoryMap.region[CI].total_len = 4;
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pm8001_ha->memoryMap.region[CI].alignment = 4;
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/* MPI Memory region 4 for producer Index of outbound queues */
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pm8001_ha->memoryMap.region[PI].num_elements = 1;
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pm8001_ha->memoryMap.region[PI].element_size = 4;
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pm8001_ha->memoryMap.region[PI].total_len = 4;
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pm8001_ha->memoryMap.region[PI].alignment = 4;
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/* MPI Memory region 5 inbound queues */
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pm8001_ha->memoryMap.region[IB].num_elements = 256;
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pm8001_ha->memoryMap.region[IB].element_size = 64;
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pm8001_ha->memoryMap.region[IB].total_len = 256 * 64;
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pm8001_ha->memoryMap.region[IB].alignment = 64;
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/* MPI Memory region 6 inbound queues */
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pm8001_ha->memoryMap.region[OB].num_elements = 256;
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pm8001_ha->memoryMap.region[OB].element_size = 64;
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pm8001_ha->memoryMap.region[OB].total_len = 256 * 64;
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pm8001_ha->memoryMap.region[OB].alignment = 64;
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/* Memory region write DMA*/
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pm8001_ha->memoryMap.region[NVMD].num_elements = 1;
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pm8001_ha->memoryMap.region[NVMD].element_size = 4096;
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pm8001_ha->memoryMap.region[NVMD].total_len = 4096;
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/* Memory region for devices*/
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pm8001_ha->memoryMap.region[DEV_MEM].num_elements = 1;
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pm8001_ha->memoryMap.region[DEV_MEM].element_size = PM8001_MAX_DEVICES *
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sizeof(struct pm8001_device);
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pm8001_ha->memoryMap.region[DEV_MEM].total_len = PM8001_MAX_DEVICES *
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sizeof(struct pm8001_device);
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/* Memory region for ccb_info*/
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pm8001_ha->memoryMap.region[CCB_MEM].num_elements = 1;
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pm8001_ha->memoryMap.region[CCB_MEM].element_size = PM8001_MAX_CCB *
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sizeof(struct pm8001_ccb_info);
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pm8001_ha->memoryMap.region[CCB_MEM].total_len = PM8001_MAX_CCB *
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sizeof(struct pm8001_ccb_info);
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for (i = 0; i < USI_MAX_MEMCNT; i++) {
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if (pm8001_mem_alloc(pm8001_ha->pdev,
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&pm8001_ha->memoryMap.region[i].virt_ptr,
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&pm8001_ha->memoryMap.region[i].phys_addr,
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&pm8001_ha->memoryMap.region[i].phys_addr_hi,
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&pm8001_ha->memoryMap.region[i].phys_addr_lo,
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pm8001_ha->memoryMap.region[i].total_len,
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pm8001_ha->memoryMap.region[i].alignment) != 0) {
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PM8001_FAIL_DBG(pm8001_ha,
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pm8001_printk("Mem%d alloc failed\n",
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i));
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goto err_out;
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}
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}
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pm8001_ha->devices = pm8001_ha->memoryMap.region[DEV_MEM].virt_ptr;
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for (i = 0; i < PM8001_MAX_DEVICES; i++) {
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pm8001_ha->devices[i].dev_type = NO_DEVICE;
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pm8001_ha->devices[i].id = i;
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pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES;
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pm8001_ha->devices[i].running_req = 0;
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}
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pm8001_ha->ccb_info = pm8001_ha->memoryMap.region[CCB_MEM].virt_ptr;
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for (i = 0; i < PM8001_MAX_CCB; i++) {
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pm8001_ha->ccb_info[i].ccb_dma_handle =
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pm8001_ha->memoryMap.region[CCB_MEM].phys_addr +
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i * sizeof(struct pm8001_ccb_info);
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pm8001_ha->ccb_info[i].task = NULL;
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pm8001_ha->ccb_info[i].ccb_tag = 0xffffffff;
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pm8001_ha->ccb_info[i].device = NULL;
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++pm8001_ha->tags_num;
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}
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pm8001_ha->flags = PM8001F_INIT_TIME;
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/* Initialize tags */
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pm8001_tag_init(pm8001_ha);
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return 0;
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err_out:
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return 1;
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}
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/**
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* pm8001_ioremap - remap the pci high physical address to kernal virtual
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* address so that we can access them.
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* @pm8001_ha:our hba structure.
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*/
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static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha)
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{
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u32 bar;
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u32 logicalBar = 0;
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struct pci_dev *pdev;
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pdev = pm8001_ha->pdev;
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/* map pci mem (PMC pci base 0-3)*/
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for (bar = 0; bar < 6; bar++) {
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/*
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** logical BARs for SPC:
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** bar 0 and 1 - logical BAR0
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** bar 2 and 3 - logical BAR1
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** bar4 - logical BAR2
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** bar5 - logical BAR3
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** Skip the appropriate assignments:
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*/
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if ((bar == 1) || (bar == 3))
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continue;
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if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
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pm8001_ha->io_mem[logicalBar].membase =
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pci_resource_start(pdev, bar);
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pm8001_ha->io_mem[logicalBar].membase &=
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(u32)PCI_BASE_ADDRESS_MEM_MASK;
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pm8001_ha->io_mem[logicalBar].memsize =
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pci_resource_len(pdev, bar);
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pm8001_ha->io_mem[logicalBar].memvirtaddr =
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ioremap(pm8001_ha->io_mem[logicalBar].membase,
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pm8001_ha->io_mem[logicalBar].memsize);
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PM8001_INIT_DBG(pm8001_ha,
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pm8001_printk("PCI: bar %d, logicalBar %d "
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"virt_addr=%lx,len=%d\n", bar, logicalBar,
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(unsigned long)
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pm8001_ha->io_mem[logicalBar].memvirtaddr,
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pm8001_ha->io_mem[logicalBar].memsize));
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} else {
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pm8001_ha->io_mem[logicalBar].membase = 0;
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pm8001_ha->io_mem[logicalBar].memsize = 0;
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pm8001_ha->io_mem[logicalBar].memvirtaddr = 0;
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}
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logicalBar++;
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}
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return 0;
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}
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/**
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* pm8001_pci_alloc - initialize our ha card structure
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* @pdev: pci device.
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* @ent: ent
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* @shost: scsi host struct which has been initialized before.
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*/
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static struct pm8001_hba_info *__devinit
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pm8001_pci_alloc(struct pci_dev *pdev, u32 chip_id, struct Scsi_Host *shost)
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{
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struct pm8001_hba_info *pm8001_ha;
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struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
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pm8001_ha = sha->lldd_ha;
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if (!pm8001_ha)
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return NULL;
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pm8001_ha->pdev = pdev;
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pm8001_ha->dev = &pdev->dev;
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pm8001_ha->chip_id = chip_id;
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pm8001_ha->chip = &pm8001_chips[pm8001_ha->chip_id];
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pm8001_ha->irq = pdev->irq;
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pm8001_ha->sas = sha;
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pm8001_ha->shost = shost;
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pm8001_ha->id = pm8001_id++;
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pm8001_ha->logging_level = 0x01;
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sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id);
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#ifdef PM8001_USE_TASKLET
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tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
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(unsigned long)pm8001_ha);
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#endif
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pm8001_ioremap(pm8001_ha);
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if (!pm8001_alloc(pm8001_ha))
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return pm8001_ha;
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pm8001_free(pm8001_ha);
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return NULL;
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}
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/**
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* pci_go_44 - pm8001 specified, its DMA is 44 bit rather than 64 bit
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* @pdev: pci device.
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*/
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static int pci_go_44(struct pci_dev *pdev)
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{
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int rc;
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if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(44))) {
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rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(44));
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if (rc) {
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rc = pci_set_consistent_dma_mask(pdev,
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DMA_BIT_MASK(32));
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if (rc) {
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dev_printk(KERN_ERR, &pdev->dev,
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"44-bit DMA enable failed\n");
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return rc;
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}
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}
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} else {
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rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
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if (rc) {
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dev_printk(KERN_ERR, &pdev->dev,
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"32-bit DMA enable failed\n");
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return rc;
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}
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rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
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if (rc) {
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dev_printk(KERN_ERR, &pdev->dev,
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"32-bit consistent DMA enable failed\n");
|
|
return rc;
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* pm8001_prep_sas_ha_init - allocate memory in general hba struct && init them.
|
|
* @shost: scsi host which has been allocated outside.
|
|
* @chip_info: our ha struct.
|
|
*/
|
|
static int __devinit pm8001_prep_sas_ha_init(struct Scsi_Host * shost,
|
|
const struct pm8001_chip_info *chip_info)
|
|
{
|
|
int phy_nr, port_nr;
|
|
struct asd_sas_phy **arr_phy;
|
|
struct asd_sas_port **arr_port;
|
|
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
|
|
|
|
phy_nr = chip_info->n_phy;
|
|
port_nr = phy_nr;
|
|
memset(sha, 0x00, sizeof(*sha));
|
|
arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
|
|
if (!arr_phy)
|
|
goto exit;
|
|
arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
|
|
if (!arr_port)
|
|
goto exit_free2;
|
|
|
|
sha->sas_phy = arr_phy;
|
|
sha->sas_port = arr_port;
|
|
sha->lldd_ha = kzalloc(sizeof(struct pm8001_hba_info), GFP_KERNEL);
|
|
if (!sha->lldd_ha)
|
|
goto exit_free1;
|
|
|
|
shost->transportt = pm8001_stt;
|
|
shost->max_id = PM8001_MAX_DEVICES;
|
|
shost->max_lun = 8;
|
|
shost->max_channel = 0;
|
|
shost->unique_id = pm8001_id;
|
|
shost->max_cmd_len = 16;
|
|
shost->can_queue = PM8001_CAN_QUEUE;
|
|
shost->cmd_per_lun = 32;
|
|
return 0;
|
|
exit_free1:
|
|
kfree(arr_port);
|
|
exit_free2:
|
|
kfree(arr_phy);
|
|
exit:
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* pm8001_post_sas_ha_init - initialize general hba struct defined in libsas
|
|
* @shost: scsi host which has been allocated outside
|
|
* @chip_info: our ha struct.
|
|
*/
|
|
static void __devinit pm8001_post_sas_ha_init(struct Scsi_Host *shost,
|
|
const struct pm8001_chip_info *chip_info)
|
|
{
|
|
int i = 0;
|
|
struct pm8001_hba_info *pm8001_ha;
|
|
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
|
|
|
|
pm8001_ha = sha->lldd_ha;
|
|
for (i = 0; i < chip_info->n_phy; i++) {
|
|
sha->sas_phy[i] = &pm8001_ha->phy[i].sas_phy;
|
|
sha->sas_port[i] = &pm8001_ha->port[i].sas_port;
|
|
}
|
|
sha->sas_ha_name = DRV_NAME;
|
|
sha->dev = pm8001_ha->dev;
|
|
|
|
sha->lldd_module = THIS_MODULE;
|
|
sha->sas_addr = &pm8001_ha->sas_addr[0];
|
|
sha->num_phys = chip_info->n_phy;
|
|
sha->lldd_max_execute_num = 1;
|
|
sha->lldd_queue_size = PM8001_CAN_QUEUE;
|
|
sha->core.shost = shost;
|
|
}
|
|
|
|
/**
|
|
* pm8001_init_sas_add - initialize sas address
|
|
* @chip_info: our ha struct.
|
|
*
|
|
* Currently we just set the fixed SAS address to our HBA,for manufacture,
|
|
* it should read from the EEPROM
|
|
*/
|
|
static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
|
|
{
|
|
u8 i;
|
|
#ifdef PM8001_READ_VPD
|
|
DECLARE_COMPLETION_ONSTACK(completion);
|
|
struct pm8001_ioctl_payload payload;
|
|
pm8001_ha->nvmd_completion = &completion;
|
|
payload.minor_function = 0;
|
|
payload.length = 128;
|
|
payload.func_specific = kzalloc(128, GFP_KERNEL);
|
|
PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
|
|
wait_for_completion(&completion);
|
|
for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
|
|
memcpy(&pm8001_ha->phy[i].dev_sas_addr, pm8001_ha->sas_addr,
|
|
SAS_ADDR_SIZE);
|
|
PM8001_INIT_DBG(pm8001_ha,
|
|
pm8001_printk("phy %d sas_addr = %016llx \n", i,
|
|
pm8001_ha->phy[i].dev_sas_addr));
|
|
}
|
|
#else
|
|
for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
|
|
pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL;
|
|
pm8001_ha->phy[i].dev_sas_addr =
|
|
cpu_to_be64((u64)
|
|
(*(u64 *)&pm8001_ha->phy[i].dev_sas_addr));
|
|
}
|
|
memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr,
|
|
SAS_ADDR_SIZE);
|
|
#endif
|
|
}
|
|
|
|
#ifdef PM8001_USE_MSIX
|
|
/**
|
|
* pm8001_setup_msix - enable MSI-X interrupt
|
|
* @chip_info: our ha struct.
|
|
* @irq_handler: irq_handler
|
|
*/
|
|
static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha,
|
|
irq_handler_t irq_handler)
|
|
{
|
|
u32 i = 0, j = 0;
|
|
u32 number_of_intr = 1;
|
|
int flag = 0;
|
|
u32 max_entry;
|
|
int rc;
|
|
max_entry = sizeof(pm8001_ha->msix_entries) /
|
|
sizeof(pm8001_ha->msix_entries[0]);
|
|
flag |= IRQF_DISABLED;
|
|
for (i = 0; i < max_entry ; i++)
|
|
pm8001_ha->msix_entries[i].entry = i;
|
|
rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries,
|
|
number_of_intr);
|
|
pm8001_ha->number_of_intr = number_of_intr;
|
|
if (!rc) {
|
|
for (i = 0; i < number_of_intr; i++) {
|
|
if (request_irq(pm8001_ha->msix_entries[i].vector,
|
|
irq_handler, flag, DRV_NAME,
|
|
SHOST_TO_SAS_HA(pm8001_ha->shost))) {
|
|
for (j = 0; j < i; j++)
|
|
free_irq(
|
|
pm8001_ha->msix_entries[j].vector,
|
|
SHOST_TO_SAS_HA(pm8001_ha->shost));
|
|
pci_disable_msix(pm8001_ha->pdev);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* pm8001_request_irq - register interrupt
|
|
* @chip_info: our ha struct.
|
|
*/
|
|
static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
|
|
{
|
|
struct pci_dev *pdev;
|
|
irq_handler_t irq_handler = pm8001_interrupt;
|
|
int rc;
|
|
|
|
pdev = pm8001_ha->pdev;
|
|
|
|
#ifdef PM8001_USE_MSIX
|
|
if (pci_find_capability(pdev, PCI_CAP_ID_MSIX))
|
|
return pm8001_setup_msix(pm8001_ha, irq_handler);
|
|
else
|
|
goto intx;
|
|
#endif
|
|
|
|
intx:
|
|
/* initialize the INT-X interrupt */
|
|
rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED, DRV_NAME,
|
|
SHOST_TO_SAS_HA(pm8001_ha->shost));
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* pm8001_pci_probe - probe supported device
|
|
* @pdev: pci device which kernel has been prepared for.
|
|
* @ent: pci device id
|
|
*
|
|
* This function is the main initialization function, when register a new
|
|
* pci driver it is invoked, all struct an hardware initilization should be done
|
|
* here, also, register interrupt
|
|
*/
|
|
static int __devinit pm8001_pci_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
unsigned int rc;
|
|
u32 pci_reg;
|
|
struct pm8001_hba_info *pm8001_ha;
|
|
struct Scsi_Host *shost = NULL;
|
|
const struct pm8001_chip_info *chip;
|
|
|
|
dev_printk(KERN_INFO, &pdev->dev,
|
|
"pm8001: driver version %s\n", DRV_VERSION);
|
|
rc = pci_enable_device(pdev);
|
|
if (rc)
|
|
goto err_out_enable;
|
|
pci_set_master(pdev);
|
|
/*
|
|
* Enable pci slot busmaster by setting pci command register.
|
|
* This is required by FW for Cyclone card.
|
|
*/
|
|
|
|
pci_read_config_dword(pdev, PCI_COMMAND, &pci_reg);
|
|
pci_reg |= 0x157;
|
|
pci_write_config_dword(pdev, PCI_COMMAND, pci_reg);
|
|
rc = pci_request_regions(pdev, DRV_NAME);
|
|
if (rc)
|
|
goto err_out_disable;
|
|
rc = pci_go_44(pdev);
|
|
if (rc)
|
|
goto err_out_regions;
|
|
|
|
shost = scsi_host_alloc(&pm8001_sht, sizeof(void *));
|
|
if (!shost) {
|
|
rc = -ENOMEM;
|
|
goto err_out_regions;
|
|
}
|
|
chip = &pm8001_chips[ent->driver_data];
|
|
SHOST_TO_SAS_HA(shost) =
|
|
kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL);
|
|
if (!SHOST_TO_SAS_HA(shost)) {
|
|
rc = -ENOMEM;
|
|
goto err_out_free_host;
|
|
}
|
|
|
|
rc = pm8001_prep_sas_ha_init(shost, chip);
|
|
if (rc) {
|
|
rc = -ENOMEM;
|
|
goto err_out_free;
|
|
}
|
|
pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
|
|
pm8001_ha = pm8001_pci_alloc(pdev, chip_8001, shost);
|
|
if (!pm8001_ha) {
|
|
rc = -ENOMEM;
|
|
goto err_out_free;
|
|
}
|
|
list_add_tail(&pm8001_ha->list, &hba_list);
|
|
PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
|
|
rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
|
|
if (rc)
|
|
goto err_out_ha_free;
|
|
|
|
rc = scsi_add_host(shost, &pdev->dev);
|
|
if (rc)
|
|
goto err_out_ha_free;
|
|
rc = pm8001_request_irq(pm8001_ha);
|
|
if (rc)
|
|
goto err_out_shost;
|
|
|
|
PM8001_CHIP_DISP->interrupt_enable(pm8001_ha);
|
|
pm8001_init_sas_add(pm8001_ha);
|
|
pm8001_post_sas_ha_init(shost, chip);
|
|
rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
|
|
if (rc)
|
|
goto err_out_shost;
|
|
scsi_scan_host(pm8001_ha->shost);
|
|
return 0;
|
|
|
|
err_out_shost:
|
|
scsi_remove_host(pm8001_ha->shost);
|
|
err_out_ha_free:
|
|
pm8001_free(pm8001_ha);
|
|
err_out_free:
|
|
kfree(SHOST_TO_SAS_HA(shost));
|
|
err_out_free_host:
|
|
kfree(shost);
|
|
err_out_regions:
|
|
pci_release_regions(pdev);
|
|
err_out_disable:
|
|
pci_disable_device(pdev);
|
|
err_out_enable:
|
|
return rc;
|
|
}
|
|
|
|
static void __devexit pm8001_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
|
|
struct pm8001_hba_info *pm8001_ha;
|
|
int i;
|
|
pm8001_ha = sha->lldd_ha;
|
|
pci_set_drvdata(pdev, NULL);
|
|
sas_unregister_ha(sha);
|
|
sas_remove_host(pm8001_ha->shost);
|
|
list_del(&pm8001_ha->list);
|
|
scsi_remove_host(pm8001_ha->shost);
|
|
PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
|
|
PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
|
|
|
|
#ifdef PM8001_USE_MSIX
|
|
for (i = 0; i < pm8001_ha->number_of_intr; i++)
|
|
synchronize_irq(pm8001_ha->msix_entries[i].vector);
|
|
for (i = 0; i < pm8001_ha->number_of_intr; i++)
|
|
free_irq(pm8001_ha->msix_entries[i].vector, sha);
|
|
pci_disable_msix(pdev);
|
|
#else
|
|
free_irq(pm8001_ha->irq, sha);
|
|
#endif
|
|
#ifdef PM8001_USE_TASKLET
|
|
tasklet_kill(&pm8001_ha->tasklet);
|
|
#endif
|
|
pm8001_free(pm8001_ha);
|
|
kfree(sha->sas_phy);
|
|
kfree(sha->sas_port);
|
|
kfree(sha);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
/**
|
|
* pm8001_pci_suspend - power management suspend main entry point
|
|
* @pdev: PCI device struct
|
|
* @state: PM state change to (usually PCI_D3)
|
|
*
|
|
* Returns 0 success, anything else error.
|
|
*/
|
|
static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
|
|
struct pm8001_hba_info *pm8001_ha;
|
|
int i , pos;
|
|
u32 device_state;
|
|
pm8001_ha = sha->lldd_ha;
|
|
flush_workqueue(pm8001_wq);
|
|
scsi_block_requests(pm8001_ha->shost);
|
|
pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
|
|
if (pos == 0) {
|
|
printk(KERN_ERR " PCI PM not supported\n");
|
|
return -ENODEV;
|
|
}
|
|
PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
|
|
PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
|
|
#ifdef PM8001_USE_MSIX
|
|
for (i = 0; i < pm8001_ha->number_of_intr; i++)
|
|
synchronize_irq(pm8001_ha->msix_entries[i].vector);
|
|
for (i = 0; i < pm8001_ha->number_of_intr; i++)
|
|
free_irq(pm8001_ha->msix_entries[i].vector, sha);
|
|
pci_disable_msix(pdev);
|
|
#else
|
|
free_irq(pm8001_ha->irq, sha);
|
|
#endif
|
|
#ifdef PM8001_USE_TASKLET
|
|
tasklet_kill(&pm8001_ha->tasklet);
|
|
#endif
|
|
device_state = pci_choose_state(pdev, state);
|
|
pm8001_printk("pdev=0x%p, slot=%s, entering "
|
|
"operating state [D%d]\n", pdev,
|
|
pm8001_ha->name, device_state);
|
|
pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, device_state);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* pm8001_pci_resume - power management resume main entry point
|
|
* @pdev: PCI device struct
|
|
*
|
|
* Returns 0 success, anything else error.
|
|
*/
|
|
static int pm8001_pci_resume(struct pci_dev *pdev)
|
|
{
|
|
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
|
|
struct pm8001_hba_info *pm8001_ha;
|
|
int rc;
|
|
u32 device_state;
|
|
pm8001_ha = sha->lldd_ha;
|
|
device_state = pdev->current_state;
|
|
|
|
pm8001_printk("pdev=0x%p, slot=%s, resuming from previous "
|
|
"operating state [D%d]\n", pdev, pm8001_ha->name, device_state);
|
|
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_enable_wake(pdev, PCI_D0, 0);
|
|
pci_restore_state(pdev);
|
|
rc = pci_enable_device(pdev);
|
|
if (rc) {
|
|
pm8001_printk("slot=%s Enable device failed during resume\n",
|
|
pm8001_ha->name);
|
|
goto err_out_enable;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
rc = pci_go_44(pdev);
|
|
if (rc)
|
|
goto err_out_disable;
|
|
|
|
PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
|
|
rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
|
|
if (rc)
|
|
goto err_out_disable;
|
|
PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
|
|
rc = pm8001_request_irq(pm8001_ha);
|
|
if (rc)
|
|
goto err_out_disable;
|
|
#ifdef PM8001_USE_TASKLET
|
|
tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
|
|
(unsigned long)pm8001_ha);
|
|
#endif
|
|
PM8001_CHIP_DISP->interrupt_enable(pm8001_ha);
|
|
scsi_unblock_requests(pm8001_ha->shost);
|
|
return 0;
|
|
|
|
err_out_disable:
|
|
scsi_remove_host(pm8001_ha->shost);
|
|
pci_disable_device(pdev);
|
|
err_out_enable:
|
|
return rc;
|
|
}
|
|
|
|
static struct pci_device_id __devinitdata pm8001_pci_table[] = {
|
|
{
|
|
PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001
|
|
},
|
|
{
|
|
PCI_DEVICE(0x117c, 0x0042),
|
|
.driver_data = chip_8001
|
|
},
|
|
{} /* terminate list */
|
|
};
|
|
|
|
static struct pci_driver pm8001_pci_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = pm8001_pci_table,
|
|
.probe = pm8001_pci_probe,
|
|
.remove = __devexit_p(pm8001_pci_remove),
|
|
.suspend = pm8001_pci_suspend,
|
|
.resume = pm8001_pci_resume,
|
|
};
|
|
|
|
/**
|
|
* pm8001_init - initialize scsi transport template
|
|
*/
|
|
static int __init pm8001_init(void)
|
|
{
|
|
int rc = -ENOMEM;
|
|
|
|
pm8001_wq = alloc_workqueue("pm8001", 0, 0);
|
|
if (!pm8001_wq)
|
|
goto err;
|
|
|
|
pm8001_id = 0;
|
|
pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops);
|
|
if (!pm8001_stt)
|
|
goto err_wq;
|
|
rc = pci_register_driver(&pm8001_pci_driver);
|
|
if (rc)
|
|
goto err_tp;
|
|
return 0;
|
|
|
|
err_tp:
|
|
sas_release_transport(pm8001_stt);
|
|
err_wq:
|
|
destroy_workqueue(pm8001_wq);
|
|
err:
|
|
return rc;
|
|
}
|
|
|
|
static void __exit pm8001_exit(void)
|
|
{
|
|
pci_unregister_driver(&pm8001_pci_driver);
|
|
sas_release_transport(pm8001_stt);
|
|
destroy_workqueue(pm8001_wq);
|
|
}
|
|
|
|
module_init(pm8001_init);
|
|
module_exit(pm8001_exit);
|
|
|
|
MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>");
|
|
MODULE_DESCRIPTION("PMC-Sierra PM8001 SAS/SATA controller driver");
|
|
MODULE_VERSION(DRV_VERSION);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DEVICE_TABLE(pci, pm8001_pci_table);
|
|
|