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linux-sg2042/drivers/scsi/mvsas/mv_init.c

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/*
* Marvell 88SE64xx/88SE94xx pci init
*
* Copyright 2007 Red Hat, Inc.
* Copyright 2008 Marvell. <kewei@marvell.com>
* Copyright 2009-2011 Marvell. <yuxiangl@marvell.com>
*
* This file is licensed under GPLv2.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of the
* License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "mv_sas.h"
static int lldd_max_execute_num = 1;
module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
MODULE_PARM_DESC(collector, "\n"
"\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
"\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
"\tThe mvsas SAS LLDD supports both modes.\n"
"\tDefault: 1 (Direct Mode).\n");
int interrupt_coalescing = 0x80;
static struct scsi_transport_template *mvs_stt;
struct kmem_cache *mvs_task_list_cache;
static const struct mvs_chip_info mvs_chips[] = {
[chip_6320] = { 1, 2, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
[chip_6440] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
[chip_6485] = { 1, 8, 0x800, 33, 32, 6, 10, &mvs_64xx_dispatch, },
[chip_9180] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
[chip_9480] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
[chip_9445] = { 1, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
[chip_9485] = { 2, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, },
[chip_1300] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, },
[chip_1320] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, },
};
struct device_attribute *mvst_host_attrs[];
#define SOC_SAS_NUM 2
static struct scsi_host_template mvs_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
.queuecommand = sas_queuecommand,
.target_alloc = sas_target_alloc,
.slave_configure = mvs_slave_configure,
.slave_destroy = sas_slave_destroy,
.scan_finished = mvs_scan_finished,
.scan_start = mvs_scan_start,
.change_queue_depth = sas_change_queue_depth,
.change_queue_type = sas_change_queue_type,
.bios_param = sas_bios_param,
.can_queue = 1,
.cmd_per_lun = 1,
.this_id = -1,
.sg_tablesize = SG_ALL,
.max_sectors = SCSI_DEFAULT_MAX_SECTORS,
.use_clustering = ENABLE_CLUSTERING,
.eh_device_reset_handler = sas_eh_device_reset_handler,
.eh_bus_reset_handler = sas_eh_bus_reset_handler,
.slave_alloc = mvs_slave_alloc,
.target_destroy = sas_target_destroy,
.ioctl = sas_ioctl,
.shost_attrs = mvst_host_attrs,
};
static struct sas_domain_function_template mvs_transport_ops = {
.lldd_dev_found = mvs_dev_found,
.lldd_dev_gone = mvs_dev_gone,
.lldd_execute_task = mvs_queue_command,
.lldd_control_phy = mvs_phy_control,
.lldd_abort_task = mvs_abort_task,
.lldd_abort_task_set = mvs_abort_task_set,
.lldd_clear_aca = mvs_clear_aca,
.lldd_clear_task_set = mvs_clear_task_set,
.lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
.lldd_lu_reset = mvs_lu_reset,
.lldd_query_task = mvs_query_task,
.lldd_port_formed = mvs_port_formed,
.lldd_port_deformed = mvs_port_deformed,
};
static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
{
struct mvs_phy *phy = &mvi->phy[phy_id];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
phy->mvi = mvi;
phy->port = NULL;
init_timer(&phy->timer);
sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
sas_phy->class = SAS;
sas_phy->iproto = SAS_PROTOCOL_ALL;
sas_phy->tproto = 0;
sas_phy->type = PHY_TYPE_PHYSICAL;
sas_phy->role = PHY_ROLE_INITIATOR;
sas_phy->oob_mode = OOB_NOT_CONNECTED;
sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
sas_phy->id = phy_id;
sas_phy->sas_addr = &mvi->sas_addr[0];
sas_phy->frame_rcvd = &phy->frame_rcvd[0];
sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata;
sas_phy->lldd_phy = phy;
}
static void mvs_free(struct mvs_info *mvi)
{
struct mvs_wq *mwq;
int slot_nr;
if (!mvi)
return;
if (mvi->flags & MVF_FLAG_SOC)
slot_nr = MVS_SOC_SLOTS;
else
slot_nr = MVS_CHIP_SLOT_SZ;
if (mvi->dma_pool)
pci_pool_destroy(mvi->dma_pool);
if (mvi->tx)
dma_free_coherent(mvi->dev,
sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
mvi->tx, mvi->tx_dma);
if (mvi->rx_fis)
dma_free_coherent(mvi->dev, MVS_RX_FISL_SZ,
mvi->rx_fis, mvi->rx_fis_dma);
if (mvi->rx)
dma_free_coherent(mvi->dev,
sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
mvi->rx, mvi->rx_dma);
if (mvi->slot)
dma_free_coherent(mvi->dev,
sizeof(*mvi->slot) * slot_nr,
mvi->slot, mvi->slot_dma);
if (mvi->bulk_buffer)
dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
mvi->bulk_buffer, mvi->bulk_buffer_dma);
if (mvi->bulk_buffer1)
dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE,
mvi->bulk_buffer1, mvi->bulk_buffer_dma1);
MVS_CHIP_DISP->chip_iounmap(mvi);
if (mvi->shost)
scsi_host_put(mvi->shost);
list_for_each_entry(mwq, &mvi->wq_list, entry)
cancel_delayed_work(&mwq->work_q);
kfree(mvi->tags);
kfree(mvi);
}
#ifdef CONFIG_SCSI_MVSAS_TASKLET
static void mvs_tasklet(unsigned long opaque)
{
u32 stat;
u16 core_nr, i = 0;
struct mvs_info *mvi;
struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
if (unlikely(!mvi))
BUG_ON(1);
stat = MVS_CHIP_DISP->isr_status(mvi, mvi->pdev->irq);
if (!stat)
goto out;
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
MVS_CHIP_DISP->isr(mvi, mvi->pdev->irq, stat);
}
out:
MVS_CHIP_DISP->interrupt_enable(mvi);
}
#endif
static irqreturn_t mvs_interrupt(int irq, void *opaque)
{
u32 core_nr;
u32 stat;
struct mvs_info *mvi;
struct sas_ha_struct *sha = opaque;
#ifndef CONFIG_SCSI_MVSAS_TASKLET
u32 i;
#endif
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
if (unlikely(!mvi))
return IRQ_NONE;
#ifdef CONFIG_SCSI_MVSAS_TASKLET
MVS_CHIP_DISP->interrupt_disable(mvi);
#endif
stat = MVS_CHIP_DISP->isr_status(mvi, irq);
if (!stat) {
#ifdef CONFIG_SCSI_MVSAS_TASKLET
MVS_CHIP_DISP->interrupt_enable(mvi);
#endif
return IRQ_NONE;
}
#ifdef CONFIG_SCSI_MVSAS_TASKLET
tasklet_schedule(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
#else
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
MVS_CHIP_DISP->isr(mvi, irq, stat);
}
#endif
return IRQ_HANDLED;
}
static int __devinit mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
{
int i = 0, slot_nr;
char pool_name[32];
if (mvi->flags & MVF_FLAG_SOC)
slot_nr = MVS_SOC_SLOTS;
else
slot_nr = MVS_CHIP_SLOT_SZ;
spin_lock_init(&mvi->lock);
for (i = 0; i < mvi->chip->n_phy; i++) {
mvs_phy_init(mvi, i);
mvi->port[i].wide_port_phymap = 0;
mvi->port[i].port_attached = 0;
INIT_LIST_HEAD(&mvi->port[i].list);
}
for (i = 0; i < MVS_MAX_DEVICES; i++) {
mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED;
mvi->devices[i].dev_type = NO_DEVICE;
mvi->devices[i].device_id = i;
mvi->devices[i].dev_status = MVS_DEV_NORMAL;
init_timer(&mvi->devices[i].timer);
}
/*
* alloc and init our DMA areas
*/
mvi->tx = dma_alloc_coherent(mvi->dev,
sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
&mvi->tx_dma, GFP_KERNEL);
if (!mvi->tx)
goto err_out;
memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ);
mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ,
&mvi->rx_fis_dma, GFP_KERNEL);
if (!mvi->rx_fis)
goto err_out;
memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ);
mvi->rx = dma_alloc_coherent(mvi->dev,
sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
&mvi->rx_dma, GFP_KERNEL);
if (!mvi->rx)
goto err_out;
memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1));
mvi->rx[0] = cpu_to_le32(0xfff);
mvi->rx_cons = 0xfff;
mvi->slot = dma_alloc_coherent(mvi->dev,
sizeof(*mvi->slot) * slot_nr,
&mvi->slot_dma, GFP_KERNEL);
if (!mvi->slot)
goto err_out;
memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr);
mvi->bulk_buffer = dma_alloc_coherent(mvi->dev,
TRASH_BUCKET_SIZE,
&mvi->bulk_buffer_dma, GFP_KERNEL);
if (!mvi->bulk_buffer)
goto err_out;
mvi->bulk_buffer1 = dma_alloc_coherent(mvi->dev,
TRASH_BUCKET_SIZE,
&mvi->bulk_buffer_dma1, GFP_KERNEL);
if (!mvi->bulk_buffer1)
goto err_out;
sprintf(pool_name, "%s%d", "mvs_dma_pool", mvi->id);
mvi->dma_pool = pci_pool_create(pool_name, mvi->pdev, MVS_SLOT_BUF_SZ, 16, 0);
if (!mvi->dma_pool) {
printk(KERN_DEBUG "failed to create dma pool %s.\n", pool_name);
goto err_out;
}
mvi->tags_num = slot_nr;
/* Initialize tags */
mvs_tag_init(mvi);
return 0;
err_out:
return 1;
}
int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
{
unsigned long res_start, res_len, res_flag, res_flag_ex = 0;
struct pci_dev *pdev = mvi->pdev;
if (bar_ex != -1) {
/*
* ioremap main and peripheral registers
*/
res_start = pci_resource_start(pdev, bar_ex);
res_len = pci_resource_len(pdev, bar_ex);
if (!res_start || !res_len)
goto err_out;
res_flag_ex = pci_resource_flags(pdev, bar_ex);
if (res_flag_ex & IORESOURCE_MEM) {
if (res_flag_ex & IORESOURCE_CACHEABLE)
mvi->regs_ex = ioremap(res_start, res_len);
else
mvi->regs_ex = ioremap_nocache(res_start,
res_len);
} else
mvi->regs_ex = (void *)res_start;
if (!mvi->regs_ex)
goto err_out;
}
res_start = pci_resource_start(pdev, bar);
res_len = pci_resource_len(pdev, bar);
if (!res_start || !res_len)
goto err_out;
res_flag = pci_resource_flags(pdev, bar);
if (res_flag & IORESOURCE_CACHEABLE)
mvi->regs = ioremap(res_start, res_len);
else
mvi->regs = ioremap_nocache(res_start, res_len);
if (!mvi->regs) {
if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM))
iounmap(mvi->regs_ex);
mvi->regs_ex = NULL;
goto err_out;
}
return 0;
err_out:
return -1;
}
void mvs_iounmap(void __iomem *regs)
{
iounmap(regs);
}
static struct mvs_info *__devinit mvs_pci_alloc(struct pci_dev *pdev,
const struct pci_device_id *ent,
struct Scsi_Host *shost, unsigned int id)
{
struct mvs_info *mvi = NULL;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
mvi = kzalloc(sizeof(*mvi) +
(1L << mvs_chips[ent->driver_data].slot_width) *
sizeof(struct mvs_slot_info), GFP_KERNEL);
if (!mvi)
return NULL;
mvi->pdev = pdev;
mvi->dev = &pdev->dev;
mvi->chip_id = ent->driver_data;
mvi->chip = &mvs_chips[mvi->chip_id];
INIT_LIST_HEAD(&mvi->wq_list);
((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi;
((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy;
mvi->id = id;
mvi->sas = sha;
mvi->shost = shost;
mvi->tags = kzalloc(MVS_CHIP_SLOT_SZ>>3, GFP_KERNEL);
if (!mvi->tags)
goto err_out;
if (MVS_CHIP_DISP->chip_ioremap(mvi))
goto err_out;
if (!mvs_alloc(mvi, shost))
return mvi;
err_out:
mvs_free(mvi);
return NULL;
}
static int pci_go_64(struct pci_dev *pdev)
{
int rc;
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (rc) {
rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"64-bit DMA enable failed\n");
return rc;
}
}
} else {
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"32-bit DMA enable failed\n");
return rc;
}
rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"32-bit consistent DMA enable failed\n");
return rc;
}
}
return rc;
}
static int __devinit mvs_prep_sas_ha_init(struct Scsi_Host *shost,
const struct mvs_chip_info *chip_info)
{
int phy_nr, port_nr; unsigned short core_nr;
struct asd_sas_phy **arr_phy;
struct asd_sas_port **arr_port;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
core_nr = chip_info->n_host;
phy_nr = core_nr * chip_info->n_phy;
port_nr = phy_nr;
memset(sha, 0x00, sizeof(struct sas_ha_struct));
arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
if (!arr_phy || !arr_port)
goto exit_free;
sha->sas_phy = arr_phy;
sha->sas_port = arr_port;
sha->core.shost = shost;
sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL);
if (!sha->lldd_ha)
goto exit_free;
((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr;
shost->transportt = mvs_stt;
shost->max_id = MVS_MAX_DEVICES;
shost->max_lun = ~0;
shost->max_channel = 1;
shost->max_cmd_len = 16;
return 0;
exit_free:
kfree(arr_phy);
kfree(arr_port);
return -1;
}
static void __devinit mvs_post_sas_ha_init(struct Scsi_Host *shost,
const struct mvs_chip_info *chip_info)
{
int can_queue, i = 0, j = 0;
struct mvs_info *mvi = NULL;
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
for (j = 0; j < nr_core; j++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
for (i = 0; i < chip_info->n_phy; i++) {
sha->sas_phy[j * chip_info->n_phy + i] =
&mvi->phy[i].sas_phy;
sha->sas_port[j * chip_info->n_phy + i] =
&mvi->port[i].sas_port;
}
}
sha->sas_ha_name = DRV_NAME;
sha->dev = mvi->dev;
sha->lldd_module = THIS_MODULE;
sha->sas_addr = &mvi->sas_addr[0];
sha->num_phys = nr_core * chip_info->n_phy;
sha->lldd_max_execute_num = lldd_max_execute_num;
if (mvi->flags & MVF_FLAG_SOC)
can_queue = MVS_SOC_CAN_QUEUE;
else
can_queue = MVS_CHIP_SLOT_SZ;
sha->lldd_queue_size = can_queue;
shost->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG);
shost->can_queue = can_queue;
mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE;
sha->core.shost = mvi->shost;
}
static void mvs_init_sas_add(struct mvs_info *mvi)
{
u8 i;
for (i = 0; i < mvi->chip->n_phy; i++) {
mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL;
mvi->phy[i].dev_sas_addr =
cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr));
}
memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE);
}
static int __devinit mvs_pci_init(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
unsigned int rc, nhost = 0;
struct mvs_info *mvi;
struct mvs_prv_info *mpi;
irq_handler_t irq_handler = mvs_interrupt;
struct Scsi_Host *shost = NULL;
const struct mvs_chip_info *chip;
dev_printk(KERN_INFO, &pdev->dev,
"mvsas: driver version %s\n", DRV_VERSION);
rc = pci_enable_device(pdev);
if (rc)
goto err_out_enable;
pci_set_master(pdev);
rc = pci_request_regions(pdev, DRV_NAME);
if (rc)
goto err_out_disable;
rc = pci_go_64(pdev);
if (rc)
goto err_out_regions;
shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
if (!shost) {
rc = -ENOMEM;
goto err_out_regions;
}
chip = &mvs_chips[ent->driver_data];
SHOST_TO_SAS_HA(shost) =
kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL);
if (!SHOST_TO_SAS_HA(shost)) {
kfree(shost);
rc = -ENOMEM;
goto err_out_regions;
}
rc = mvs_prep_sas_ha_init(shost, chip);
if (rc) {
kfree(shost);
rc = -ENOMEM;
goto err_out_regions;
}
pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
do {
mvi = mvs_pci_alloc(pdev, ent, shost, nhost);
if (!mvi) {
rc = -ENOMEM;
goto err_out_regions;
}
memset(&mvi->hba_info_param, 0xFF,
sizeof(struct hba_info_page));
mvs_init_sas_add(mvi);
mvi->instance = nhost;
rc = MVS_CHIP_DISP->chip_init(mvi);
if (rc) {
mvs_free(mvi);
goto err_out_regions;
}
nhost++;
} while (nhost < chip->n_host);
mpi = (struct mvs_prv_info *)(SHOST_TO_SAS_HA(shost)->lldd_ha);
#ifdef CONFIG_SCSI_MVSAS_TASKLET
tasklet_init(&(mpi->mv_tasklet), mvs_tasklet,
(unsigned long)SHOST_TO_SAS_HA(shost));
#endif
mvs_post_sas_ha_init(shost, chip);
rc = scsi_add_host(shost, &pdev->dev);
if (rc)
goto err_out_shost;
rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
if (rc)
goto err_out_shost;
rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED,
DRV_NAME, SHOST_TO_SAS_HA(shost));
if (rc)
goto err_not_sas;
MVS_CHIP_DISP->interrupt_enable(mvi);
scsi_scan_host(mvi->shost);
return 0;
err_not_sas:
sas_unregister_ha(SHOST_TO_SAS_HA(shost));
err_out_shost:
scsi_remove_host(mvi->shost);
err_out_regions:
pci_release_regions(pdev);
err_out_disable:
pci_disable_device(pdev);
err_out_enable:
return rc;
}
static void __devexit mvs_pci_remove(struct pci_dev *pdev)
{
unsigned short core_nr, i = 0;
struct sas_ha_struct *sha = pci_get_drvdata(pdev);
struct mvs_info *mvi = NULL;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
#ifdef CONFIG_SCSI_MVSAS_TASKLET
tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
#endif
pci_set_drvdata(pdev, NULL);
sas_unregister_ha(sha);
sas_remove_host(mvi->shost);
scsi_remove_host(mvi->shost);
MVS_CHIP_DISP->interrupt_disable(mvi);
free_irq(mvi->pdev->irq, sha);
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
mvs_free(mvi);
}
kfree(sha->sas_phy);
kfree(sha->sas_port);
kfree(sha);
pci_release_regions(pdev);
pci_disable_device(pdev);
return;
}
static struct pci_device_id __devinitdata mvs_pci_table[] = {
{ PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
{ PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
{
.vendor = PCI_VENDOR_ID_MARVELL,
.device = 0x6440,
.subvendor = PCI_ANY_ID,
.subdevice = 0x6480,
.class = 0,
.class_mask = 0,
.driver_data = chip_6485,
},
{ PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
{ PCI_VDEVICE(MARVELL, 0x6485), chip_6485 },
{ PCI_VDEVICE(MARVELL, 0x9480), chip_9480 },
{ PCI_VDEVICE(MARVELL, 0x9180), chip_9180 },
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 },
{ PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 },
{ PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 },
{ PCI_VDEVICE(TTI, 0x2710), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2720), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2721), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2722), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2740), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2744), chip_9480 },
{ PCI_VDEVICE(TTI, 0x2760), chip_9480 },
{
.vendor = 0x1b4b,
.device = 0x9445,
.subvendor = PCI_ANY_ID,
.subdevice = 0x9480,
.class = 0,
.class_mask = 0,
.driver_data = chip_9445,
},
{
.vendor = 0x1b4b,
.device = 0x9485,
.subvendor = PCI_ANY_ID,
.subdevice = 0x9480,
.class = 0,
.class_mask = 0,
.driver_data = chip_9485,
},
{ } /* terminate list */
};
static struct pci_driver mvs_pci_driver = {
.name = DRV_NAME,
.id_table = mvs_pci_table,
.probe = mvs_pci_init,
.remove = __devexit_p(mvs_pci_remove),
};
static ssize_t
mvs_show_driver_version(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION);
}
static DEVICE_ATTR(driver_version,
S_IRUGO,
mvs_show_driver_version,
NULL);
static ssize_t
mvs_store_interrupt_coalescing(struct device *cdev,
struct device_attribute *attr,
const char *buffer, size_t size)
{
int val = 0;
struct mvs_info *mvi = NULL;
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
u8 i, core_nr;
if (buffer == NULL)
return size;
if (sscanf(buffer, "%d", &val) != 1)
return -EINVAL;
if (val >= 0x10000) {
mv_dprintk("interrupt coalescing timer %d us is"
"too long\n", val);
return strlen(buffer);
}
interrupt_coalescing = val;
core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0];
if (unlikely(!mvi))
return -EINVAL;
for (i = 0; i < core_nr; i++) {
mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i];
if (MVS_CHIP_DISP->tune_interrupt)
MVS_CHIP_DISP->tune_interrupt(mvi,
interrupt_coalescing);
}
mv_dprintk("set interrupt coalescing time to %d us\n",
interrupt_coalescing);
return strlen(buffer);
}
static ssize_t mvs_show_interrupt_coalescing(struct device *cdev,
struct device_attribute *attr, char *buffer)
{
return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing);
}
static DEVICE_ATTR(interrupt_coalescing,
S_IRUGO|S_IWUSR,
mvs_show_interrupt_coalescing,
mvs_store_interrupt_coalescing);
/* task handler */
struct task_struct *mvs_th;
static int __init mvs_init(void)
{
int rc;
mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
if (!mvs_stt)
return -ENOMEM;
mvs_task_list_cache = kmem_cache_create("mvs_task_list", sizeof(struct mvs_task_list),
0, SLAB_HWCACHE_ALIGN, NULL);
if (!mvs_task_list_cache) {
rc = -ENOMEM;
mv_printk("%s: mvs_task_list_cache alloc failed! \n", __func__);
goto err_out;
}
rc = pci_register_driver(&mvs_pci_driver);
if (rc)
goto err_out;
return 0;
err_out:
sas_release_transport(mvs_stt);
return rc;
}
static void __exit mvs_exit(void)
{
pci_unregister_driver(&mvs_pci_driver);
sas_release_transport(mvs_stt);
kmem_cache_destroy(mvs_task_list_cache);
}
struct device_attribute *mvst_host_attrs[] = {
&dev_attr_driver_version,
&dev_attr_interrupt_coalescing,
NULL,
};
module_init(mvs_init);
module_exit(mvs_exit);
MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");
#ifdef CONFIG_PCI
MODULE_DEVICE_TABLE(pci, mvs_pci_table);
#endif
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