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OpenCloudOS-Kernel/drivers/scsi/aic94xx/aic94xx_init.c

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/*
* Aic94xx SAS/SATA driver initialization.
*
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
*
* This file is licensed under GPLv2.
*
* This file is part of the aic94xx driver.
*
* The aic94xx driver 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.
*
* The aic94xx driver 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 the aic94xx driver; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/slab.h>
#include <scsi/scsi_host.h>
#include "aic94xx.h"
#include "aic94xx_reg.h"
#include "aic94xx_hwi.h"
#include "aic94xx_seq.h"
#include "aic94xx_sds.h"
/* The format is "version.release.patchlevel" */
#define ASD_DRIVER_VERSION "1.0.3"
static int use_msi = 0;
module_param_named(use_msi, use_msi, int, S_IRUGO);
MODULE_PARM_DESC(use_msi, "\n"
"\tEnable(1) or disable(0) using PCI MSI.\n"
"\tDefault: 0");
static struct scsi_transport_template *aic94xx_transport_template;
static int asd_scan_finished(struct Scsi_Host *, unsigned long);
static void asd_scan_start(struct Scsi_Host *);
static struct scsi_host_template aic94xx_sht = {
.module = THIS_MODULE,
/* .name is initialized */
.name = "aic94xx",
.queuecommand = sas_queuecommand,
.target_alloc = sas_target_alloc,
.slave_configure = sas_slave_configure,
.scan_finished = asd_scan_finished,
.scan_start = asd_scan_start,
.change_queue_depth = sas_change_queue_depth,
.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,
.target_destroy = sas_target_destroy,
.ioctl = sas_ioctl,
.use_blk_tags = 1,
.track_queue_depth = 1,
};
static int asd_map_memio(struct asd_ha_struct *asd_ha)
{
int err, i;
struct asd_ha_addrspace *io_handle;
asd_ha->iospace = 0;
for (i = 0; i < 3; i += 2) {
io_handle = &asd_ha->io_handle[i==0?0:1];
io_handle->start = pci_resource_start(asd_ha->pcidev, i);
io_handle->len = pci_resource_len(asd_ha->pcidev, i);
io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
err = -ENODEV;
if (!io_handle->start || !io_handle->len) {
asd_printk("MBAR%d start or length for %s is 0.\n",
i==0?0:1, pci_name(asd_ha->pcidev));
goto Err;
}
err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
if (err) {
asd_printk("couldn't reserve memory region for %s\n",
pci_name(asd_ha->pcidev));
goto Err;
}
if (io_handle->flags & IORESOURCE_CACHEABLE)
io_handle->addr = ioremap(io_handle->start,
io_handle->len);
else
io_handle->addr = ioremap_nocache(io_handle->start,
io_handle->len);
if (!io_handle->addr) {
asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
pci_name(asd_ha->pcidev));
goto Err_unreq;
}
}
return 0;
Err_unreq:
pci_release_region(asd_ha->pcidev, i);
Err:
if (i > 0) {
io_handle = &asd_ha->io_handle[0];
iounmap(io_handle->addr);
pci_release_region(asd_ha->pcidev, 0);
}
return err;
}
static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
{
struct asd_ha_addrspace *io_handle;
io_handle = &asd_ha->io_handle[1];
iounmap(io_handle->addr);
pci_release_region(asd_ha->pcidev, 2);
io_handle = &asd_ha->io_handle[0];
iounmap(io_handle->addr);
pci_release_region(asd_ha->pcidev, 0);
}
static int asd_map_ioport(struct asd_ha_struct *asd_ha)
{
int i = PCI_IOBAR_OFFSET, err;
struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
asd_ha->iospace = 1;
io_handle->start = pci_resource_start(asd_ha->pcidev, i);
io_handle->len = pci_resource_len(asd_ha->pcidev, i);
io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
io_handle->addr = (void __iomem *) io_handle->start;
if (!io_handle->start || !io_handle->len) {
asd_printk("couldn't get IO ports for %s\n",
pci_name(asd_ha->pcidev));
return -ENODEV;
}
err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
if (err) {
asd_printk("couldn't reserve io space for %s\n",
pci_name(asd_ha->pcidev));
}
return err;
}
static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
{
pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
}
static int asd_map_ha(struct asd_ha_struct *asd_ha)
{
int err;
u16 cmd_reg;
err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
if (err) {
asd_printk("couldn't read command register of %s\n",
pci_name(asd_ha->pcidev));
goto Err;
}
err = -ENODEV;
if (cmd_reg & PCI_COMMAND_MEMORY) {
if ((err = asd_map_memio(asd_ha)))
goto Err;
} else if (cmd_reg & PCI_COMMAND_IO) {
if ((err = asd_map_ioport(asd_ha)))
goto Err;
asd_printk("%s ioport mapped -- upgrade your hardware\n",
pci_name(asd_ha->pcidev));
} else {
asd_printk("no proper device access to %s\n",
pci_name(asd_ha->pcidev));
goto Err;
}
return 0;
Err:
return err;
}
static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
{
if (asd_ha->iospace)
asd_unmap_ioport(asd_ha);
else
asd_unmap_memio(asd_ha);
}
static const char *asd_dev_rev[30] = {
[0] = "A0",
[1] = "A1",
[8] = "B0",
};
static int asd_common_setup(struct asd_ha_struct *asd_ha)
{
int err, i;
asd_ha->revision_id = asd_ha->pcidev->revision;
err = -ENODEV;
if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
asd_printk("%s is revision %s (%X), which is not supported\n",
pci_name(asd_ha->pcidev),
asd_dev_rev[asd_ha->revision_id],
asd_ha->revision_id);
goto Err;
}
/* Provide some sane default values. */
asd_ha->hw_prof.max_scbs = 512;
asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
/* All phys are enabled, by default. */
asd_ha->hw_prof.enabled_phys = 0xFF;
for (i = 0; i < ASD_MAX_PHYS; i++) {
asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
SAS_LINK_RATE_3_0_GBPS;
asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
SAS_LINK_RATE_1_5_GBPS;
asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
SAS_LINK_RATE_1_5_GBPS;
asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
SAS_LINK_RATE_1_5_GBPS;
}
return 0;
Err:
return err;
}
static int asd_aic9410_setup(struct asd_ha_struct *asd_ha)
{
int err = asd_common_setup(asd_ha);
if (err)
return err;
asd_ha->hw_prof.addr_range = 8;
asd_ha->hw_prof.port_name_base = 0;
asd_ha->hw_prof.dev_name_base = 8;
asd_ha->hw_prof.sata_name_base = 16;
return 0;
}
static int asd_aic9405_setup(struct asd_ha_struct *asd_ha)
{
int err = asd_common_setup(asd_ha);
if (err)
return err;
asd_ha->hw_prof.addr_range = 4;
asd_ha->hw_prof.port_name_base = 0;
asd_ha->hw_prof.dev_name_base = 4;
asd_ha->hw_prof.sata_name_base = 8;
return 0;
}
static ssize_t asd_show_dev_rev(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
return snprintf(buf, PAGE_SIZE, "%s\n",
asd_dev_rev[asd_ha->revision_id]);
}
static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
static ssize_t asd_show_dev_bios_build(struct device *dev,
struct device_attribute *attr,char *buf)
{
struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
}
static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
static ssize_t asd_show_dev_pcba_sn(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
}
static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
#define FLASH_CMD_NONE 0x00
#define FLASH_CMD_UPDATE 0x01
#define FLASH_CMD_VERIFY 0x02
struct flash_command {
u8 command[8];
int code;
};
static struct flash_command flash_command_table[] =
{
{"verify", FLASH_CMD_VERIFY},
{"update", FLASH_CMD_UPDATE},
{"", FLASH_CMD_NONE} /* Last entry should be NULL. */
};
struct error_bios {
char *reason;
int err_code;
};
static struct error_bios flash_error_table[] =
{
{"Failed to open bios image file", FAIL_OPEN_BIOS_FILE},
{"PCI ID mismatch", FAIL_CHECK_PCI_ID},
{"Checksum mismatch", FAIL_CHECK_SUM},
{"Unknown Error", FAIL_UNKNOWN},
{"Failed to verify.", FAIL_VERIFY},
{"Failed to reset flash chip.", FAIL_RESET_FLASH},
{"Failed to find flash chip type.", FAIL_FIND_FLASH_ID},
{"Failed to erash flash chip.", FAIL_ERASE_FLASH},
{"Failed to program flash chip.", FAIL_WRITE_FLASH},
{"Flash in progress", FLASH_IN_PROGRESS},
{"Image file size Error", FAIL_FILE_SIZE},
{"Input parameter error", FAIL_PARAMETERS},
{"Out of memory", FAIL_OUT_MEMORY},
{"OK", 0} /* Last entry err_code = 0. */
};
static ssize_t asd_store_update_bios(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
char *cmd_ptr, *filename_ptr;
struct bios_file_header header, *hdr_ptr;
int res, i;
u32 csum = 0;
int flash_command = FLASH_CMD_NONE;
int err = 0;
cmd_ptr = kzalloc(count*2, GFP_KERNEL);
if (!cmd_ptr) {
err = FAIL_OUT_MEMORY;
goto out;
}
filename_ptr = cmd_ptr + count;
res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
if (res != 2) {
err = FAIL_PARAMETERS;
goto out1;
}
for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
if (!memcmp(flash_command_table[i].command,
cmd_ptr, strlen(cmd_ptr))) {
flash_command = flash_command_table[i].code;
break;
}
}
if (flash_command == FLASH_CMD_NONE) {
err = FAIL_PARAMETERS;
goto out1;
}
if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
err = FLASH_IN_PROGRESS;
goto out1;
}
err = request_firmware(&asd_ha->bios_image,
filename_ptr,
&asd_ha->pcidev->dev);
if (err) {
asd_printk("Failed to load bios image file %s, error %d\n",
filename_ptr, err);
err = FAIL_OPEN_BIOS_FILE;
goto out1;
}
hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
(hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
ASD_DPRINTK("The PCI vendor or device id does not match\n");
ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
" pci vendor=%x pci dev=%x\n",
hdr_ptr->contrl_id.vendor,
hdr_ptr->contrl_id.device,
hdr_ptr->contrl_id.sub_vendor,
hdr_ptr->contrl_id.sub_device,
asd_ha->pcidev->vendor,
asd_ha->pcidev->device);
err = FAIL_CHECK_PCI_ID;
goto out2;
}
if (hdr_ptr->filelen != asd_ha->bios_image->size) {
err = FAIL_FILE_SIZE;
goto out2;
}
/* calculate checksum */
for (i = 0; i < hdr_ptr->filelen; i++)
csum += asd_ha->bios_image->data[i];
if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
ASD_DPRINTK("BIOS file checksum mismatch\n");
err = FAIL_CHECK_SUM;
goto out2;
}
if (flash_command == FLASH_CMD_UPDATE) {
asd_ha->bios_status = FLASH_IN_PROGRESS;
err = asd_write_flash_seg(asd_ha,
&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
0, hdr_ptr->filelen-sizeof(*hdr_ptr));
if (!err)
err = asd_verify_flash_seg(asd_ha,
&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
0, hdr_ptr->filelen-sizeof(*hdr_ptr));
} else {
asd_ha->bios_status = FLASH_IN_PROGRESS;
err = asd_verify_flash_seg(asd_ha,
&asd_ha->bios_image->data[sizeof(header)],
0, hdr_ptr->filelen-sizeof(header));
}
out2:
release_firmware(asd_ha->bios_image);
out1:
kfree(cmd_ptr);
out:
asd_ha->bios_status = err;
if (!err)
return count;
else
return -err;
}
static ssize_t asd_show_update_bios(struct device *dev,
struct device_attribute *attr, char *buf)
{
int i;
struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
for (i = 0; flash_error_table[i].err_code != 0; i++) {
if (flash_error_table[i].err_code == asd_ha->bios_status)
break;
}
if (asd_ha->bios_status != FLASH_IN_PROGRESS)
asd_ha->bios_status = FLASH_OK;
return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
flash_error_table[i].err_code,
flash_error_table[i].reason);
}
static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
asd_show_update_bios, asd_store_update_bios);
static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
{
int err;
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
if (err)
return err;
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
if (err)
goto err_rev;
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
if (err)
goto err_biosb;
err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
if (err)
goto err_update_bios;
return 0;
err_update_bios:
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
err_biosb:
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
err_rev:
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
return err;
}
static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
{
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
}
/* The first entry, 0, is used for dynamic ids, the rest for devices
* we know about.
*/
static const struct asd_pcidev_struct {
const char * name;
int (*setup)(struct asd_ha_struct *asd_ha);
} asd_pcidev_data[] = {
/* Id 0 is used for dynamic ids. */
{ .name = "Adaptec AIC-94xx SAS/SATA Host Adapter",
.setup = asd_aic9410_setup
},
{ .name = "Adaptec AIC-9410W SAS/SATA Host Adapter",
.setup = asd_aic9410_setup
},
{ .name = "Adaptec AIC-9405W SAS/SATA Host Adapter",
.setup = asd_aic9405_setup
},
};
static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
{
asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
&asd_ha->pcidev->dev,
sizeof(struct scb),
8, 0);
if (!asd_ha->scb_pool) {
asd_printk("couldn't create scb pool\n");
return -ENOMEM;
}
return 0;
}
/**
* asd_free_edbs -- free empty data buffers
* asd_ha: pointer to host adapter structure
*/
static void asd_free_edbs(struct asd_ha_struct *asd_ha)
{
struct asd_seq_data *seq = &asd_ha->seq;
int i;
for (i = 0; i < seq->num_edbs; i++)
asd_free_coherent(asd_ha, seq->edb_arr[i]);
kfree(seq->edb_arr);
seq->edb_arr = NULL;
}
static void asd_free_escbs(struct asd_ha_struct *asd_ha)
{
struct asd_seq_data *seq = &asd_ha->seq;
int i;
for (i = 0; i < seq->num_escbs; i++) {
if (!list_empty(&seq->escb_arr[i]->list))
list_del_init(&seq->escb_arr[i]->list);
asd_ascb_free(seq->escb_arr[i]);
}
kfree(seq->escb_arr);
seq->escb_arr = NULL;
}
static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
{
int i;
if (asd_ha->hw_prof.ddb_ext)
asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
if (asd_ha->hw_prof.scb_ext)
asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
if (asd_ha->hw_prof.ddb_bitmap)
kfree(asd_ha->hw_prof.ddb_bitmap);
asd_ha->hw_prof.ddb_bitmap = NULL;
for (i = 0; i < ASD_MAX_PHYS; i++) {
struct asd_phy *phy = &asd_ha->phys[i];
asd_free_coherent(asd_ha, phy->id_frm_tok);
}
if (asd_ha->seq.escb_arr)
asd_free_escbs(asd_ha);
if (asd_ha->seq.edb_arr)
asd_free_edbs(asd_ha);
if (asd_ha->hw_prof.ue.area) {
kfree(asd_ha->hw_prof.ue.area);
asd_ha->hw_prof.ue.area = NULL;
}
if (asd_ha->seq.tc_index_array) {
kfree(asd_ha->seq.tc_index_array);
kfree(asd_ha->seq.tc_index_bitmap);
asd_ha->seq.tc_index_array = NULL;
asd_ha->seq.tc_index_bitmap = NULL;
}
if (asd_ha->seq.actual_dl) {
asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
asd_ha->seq.actual_dl = NULL;
asd_ha->seq.dl = NULL;
}
if (asd_ha->seq.next_scb.vaddr) {
dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
asd_ha->seq.next_scb.dma_handle);
asd_ha->seq.next_scb.vaddr = NULL;
}
dma_pool_destroy(asd_ha->scb_pool);
asd_ha->scb_pool = NULL;
}
struct kmem_cache *asd_dma_token_cache;
struct kmem_cache *asd_ascb_cache;
static int asd_create_global_caches(void)
{
if (!asd_dma_token_cache) {
asd_dma_token_cache
= kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
sizeof(struct asd_dma_tok),
0,
SLAB_HWCACHE_ALIGN,
NULL);
if (!asd_dma_token_cache) {
asd_printk("couldn't create dma token cache\n");
return -ENOMEM;
}
}
if (!asd_ascb_cache) {
asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
sizeof(struct asd_ascb),
0,
SLAB_HWCACHE_ALIGN,
NULL);
if (!asd_ascb_cache) {
asd_printk("couldn't create ascb cache\n");
goto Err;
}
}
return 0;
Err:
kmem_cache_destroy(asd_dma_token_cache);
asd_dma_token_cache = NULL;
return -ENOMEM;
}
static void asd_destroy_global_caches(void)
{
if (asd_dma_token_cache)
kmem_cache_destroy(asd_dma_token_cache);
asd_dma_token_cache = NULL;
if (asd_ascb_cache)
kmem_cache_destroy(asd_ascb_cache);
asd_ascb_cache = NULL;
}
static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
{
int i;
struct asd_sas_phy **sas_phys =
kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
struct asd_sas_port **sas_ports =
kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
if (!sas_phys || !sas_ports) {
kfree(sas_phys);
kfree(sas_ports);
return -ENOMEM;
}
asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
asd_ha->sas_ha.lldd_module = THIS_MODULE;
asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
for (i = 0; i < ASD_MAX_PHYS; i++) {
sas_phys[i] = &asd_ha->phys[i].sas_phy;
sas_ports[i] = &asd_ha->ports[i];
}
asd_ha->sas_ha.sas_phy = sas_phys;
asd_ha->sas_ha.sas_port= sas_ports;
asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
return sas_register_ha(&asd_ha->sas_ha);
}
static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
{
int err;
err = sas_unregister_ha(&asd_ha->sas_ha);
sas_remove_host(asd_ha->sas_ha.core.shost);
scsi_remove_host(asd_ha->sas_ha.core.shost);
scsi_host_put(asd_ha->sas_ha.core.shost);
kfree(asd_ha->sas_ha.sas_phy);
kfree(asd_ha->sas_ha.sas_port);
return err;
}
static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
const struct asd_pcidev_struct *asd_dev;
unsigned asd_id = (unsigned) id->driver_data;
struct asd_ha_struct *asd_ha;
struct Scsi_Host *shost;
int err;
if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
asd_printk("wrong driver_data in PCI table\n");
return -ENODEV;
}
if ((err = pci_enable_device(dev))) {
asd_printk("couldn't enable device %s\n", pci_name(dev));
return err;
}
pci_set_master(dev);
err = -ENOMEM;
shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
if (!shost)
goto Err;
asd_dev = &asd_pcidev_data[asd_id];
asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
if (!asd_ha) {
asd_printk("out of memory\n");
goto Err_put;
}
asd_ha->pcidev = dev;
asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
asd_ha->sas_ha.lldd_ha = asd_ha;
asd_ha->bios_status = FLASH_OK;
asd_ha->name = asd_dev->name;
asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
asd_ha->sas_ha.core.shost = shost;
shost->transportt = aic94xx_transport_template;
shost->max_id = ~0;
shost->max_lun = ~0;
shost->max_cmd_len = 16;
err = scsi_add_host(shost, &dev->dev);
if (err)
goto Err_free;
err = asd_dev->setup(asd_ha);
if (err)
goto Err_remove;
err = -ENODEV;
if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
&& !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
;
else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
&& !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
;
else {
asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
goto Err_remove;
}
pci_set_drvdata(dev, asd_ha);
err = asd_map_ha(asd_ha);
if (err)
goto Err_remove;
err = asd_create_ha_caches(asd_ha);
if (err)
goto Err_unmap;
err = asd_init_hw(asd_ha);
if (err)
goto Err_free_cache;
asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
"phys, flash %s, BIOS %s%d\n",
pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
asd_ha->hw_prof.num_phys,
asd_ha->hw_prof.flash.present ? "present" : "not present",
asd_ha->hw_prof.bios.present ? "build " : "not present",
asd_ha->hw_prof.bios.bld);
shost->can_queue = asd_ha->seq.can_queue;
if (use_msi)
pci_enable_msi(asd_ha->pcidev);
err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
ASD_DRIVER_NAME, asd_ha);
if (err) {
asd_printk("couldn't get irq %d for %s\n",
asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
goto Err_irq;
}
asd_enable_ints(asd_ha);
err = asd_init_post_escbs(asd_ha);
if (err) {
asd_printk("couldn't post escbs for %s\n",
pci_name(asd_ha->pcidev));
goto Err_escbs;
}
ASD_DPRINTK("escbs posted\n");
err = asd_create_dev_attrs(asd_ha);
if (err)
goto Err_dev_attrs;
err = asd_register_sas_ha(asd_ha);
if (err)
goto Err_reg_sas;
scsi_scan_host(shost);
return 0;
Err_reg_sas:
asd_remove_dev_attrs(asd_ha);
Err_dev_attrs:
Err_escbs:
asd_disable_ints(asd_ha);
free_irq(dev->irq, asd_ha);
Err_irq:
if (use_msi)
pci_disable_msi(dev);
asd_chip_hardrst(asd_ha);
Err_free_cache:
asd_destroy_ha_caches(asd_ha);
Err_unmap:
asd_unmap_ha(asd_ha);
Err_remove:
scsi_remove_host(shost);
Err_free:
kfree(asd_ha);
Err_put:
scsi_host_put(shost);
Err:
pci_disable_device(dev);
return err;
}
static void asd_free_queues(struct asd_ha_struct *asd_ha)
{
unsigned long flags;
LIST_HEAD(pending);
struct list_head *n, *pos;
spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
asd_ha->seq.pending = 0;
list_splice_init(&asd_ha->seq.pend_q, &pending);
spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
if (!list_empty(&pending))
ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
list_for_each_safe(pos, n, &pending) {
struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
/*
* Delete unexpired ascb timers. This may happen if we issue
* a CONTROL PHY scb to an adapter and rmmod before the scb
* times out. Apparently we don't wait for the CONTROL PHY
* to complete, so it doesn't matter if we kill the timer.
*/
del_timer_sync(&ascb->timer);
WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
list_del_init(pos);
ASD_DPRINTK("freeing from pending\n");
asd_ascb_free(ascb);
}
}
static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
{
u8 phy_mask = asd_ha->hw_prof.enabled_phys;
u8 i;
for_each_phy(phy_mask, phy_mask, i) {
asd_turn_led(asd_ha, i, 0);
asd_control_led(asd_ha, i, 0);
}
}
static void asd_pci_remove(struct pci_dev *dev)
{
struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
if (!asd_ha)
return;
asd_unregister_sas_ha(asd_ha);
asd_disable_ints(asd_ha);
asd_remove_dev_attrs(asd_ha);
/* XXX more here as needed */
free_irq(dev->irq, asd_ha);
if (use_msi)
pci_disable_msi(asd_ha->pcidev);
asd_turn_off_leds(asd_ha);
asd_chip_hardrst(asd_ha);
asd_free_queues(asd_ha);
asd_destroy_ha_caches(asd_ha);
asd_unmap_ha(asd_ha);
kfree(asd_ha);
pci_disable_device(dev);
return;
}
static void asd_scan_start(struct Scsi_Host *shost)
{
struct asd_ha_struct *asd_ha;
int err;
asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
if (err)
asd_printk("Couldn't enable phys, err:%d\n", err);
}
static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
/* give the phy enabling interrupt event time to come in (1s
* is empirically about all it takes) */
if (time < HZ)
return 0;
/* Wait for discovery to finish */
sas_drain_work(SHOST_TO_SAS_HA(shost));
return 1;
}
static ssize_t asd_version_show(struct device_driver *driver, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
}
static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
static int asd_create_driver_attrs(struct device_driver *driver)
{
return driver_create_file(driver, &driver_attr_version);
}
static void asd_remove_driver_attrs(struct device_driver *driver)
{
driver_remove_file(driver, &driver_attr_version);
}
static struct sas_domain_function_template aic94xx_transport_functions = {
.lldd_dev_found = asd_dev_found,
.lldd_dev_gone = asd_dev_gone,
.lldd_execute_task = asd_execute_task,
.lldd_abort_task = asd_abort_task,
.lldd_abort_task_set = asd_abort_task_set,
.lldd_clear_aca = asd_clear_aca,
.lldd_clear_task_set = asd_clear_task_set,
.lldd_I_T_nexus_reset = asd_I_T_nexus_reset,
.lldd_lu_reset = asd_lu_reset,
.lldd_query_task = asd_query_task,
.lldd_clear_nexus_port = asd_clear_nexus_port,
.lldd_clear_nexus_ha = asd_clear_nexus_ha,
.lldd_control_phy = asd_control_phy,
.lldd_ata_set_dmamode = asd_set_dmamode,
};
static const struct pci_device_id aic94xx_pci_table[] = {
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
{}
};
MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
static struct pci_driver aic94xx_pci_driver = {
.name = ASD_DRIVER_NAME,
.id_table = aic94xx_pci_table,
.probe = asd_pci_probe,
.remove = asd_pci_remove,
};
static int __init aic94xx_init(void)
{
int err;
asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
ASD_DRIVER_VERSION);
err = asd_create_global_caches();
if (err)
return err;
aic94xx_transport_template =
sas_domain_attach_transport(&aic94xx_transport_functions);
if (!aic94xx_transport_template)
goto out_destroy_caches;
err = pci_register_driver(&aic94xx_pci_driver);
if (err)
goto out_release_transport;
err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
if (err)
goto out_unregister_pcidrv;
return err;
out_unregister_pcidrv:
pci_unregister_driver(&aic94xx_pci_driver);
out_release_transport:
sas_release_transport(aic94xx_transport_template);
out_destroy_caches:
asd_destroy_global_caches();
return err;
}
static void __exit aic94xx_exit(void)
{
asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
pci_unregister_driver(&aic94xx_pci_driver);
sas_release_transport(aic94xx_transport_template);
asd_release_firmware();
asd_destroy_global_caches();
asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
ASD_DRIVER_VERSION);
}
module_init(aic94xx_init);
module_exit(aic94xx_exit);
MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
MODULE_LICENSE("GPL v2");
MODULE_VERSION(ASD_DRIVER_VERSION);
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