#include "ieee1394_transactions.h"
#include "sbp2.h"
-static char version[] __devinitdata =
- "$Rev: 1306 $ Ben Collins <bcollins@debian.org>";
-
/*
* Module load parameter definitions
*/
module_param(force_inquiry_hack, int, 0444);
MODULE_PARM_DESC(force_inquiry_hack, "Force SCSI inquiry hack (default = 0)");
-
/*
* Export information about protocols/devices supported by this driver.
*/
static struct ieee1394_device_id sbp2_id_table[] = {
{
- .match_flags =IEEE1394_MATCH_SPECIFIER_ID |
- IEEE1394_MATCH_VERSION,
- .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff,
- .version = SBP2_SW_VERSION_ENTRY & 0xffffff
- },
- { }
+ .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION,
+ .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff,
+ .version = SBP2_SW_VERSION_ENTRY & 0xffffff},
+ {}
};
MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table);
#define SBP2_ERR(fmt, args...) HPSB_ERR("sbp2: "fmt, ## args)
-
/*
* Globals
*/
#ifdef CONFIG_IEEE1394_SBP2_PHYS_DMA
static struct hpsb_address_ops sbp2_physdma_ops = {
- .read = sbp2_handle_physdma_read,
- .write = sbp2_handle_physdma_write,
+ .read = sbp2_handle_physdma_read,
+ .write = sbp2_handle_physdma_write,
};
#endif
* General utility functions
**************************************/
-
#ifndef __BIG_ENDIAN
/*
* Converts a buffer from be32 to cpu byte ordering. Length is in bytes.
/*
* Debug packet dump routine. Length is in bytes.
*/
-static void sbp2util_packet_dump(void *buffer, int length, char *dump_name, u32 dump_phys_addr)
+static void sbp2util_packet_dump(void *buffer, int length, char *dump_name,
+ u32 dump_phys_addr)
{
int i;
unsigned char *dump = buffer;
printk(" ");
if ((i & 0xf) == 0)
printk("\n ");
- printk("%02x ", (int) dump[i]);
+ printk("%02x ", (int)dump[i]);
}
printk("\n");
for (i = timeout; (i > 0 && atomic_read(done) == 0); i-= HZ/10) {
if (msleep_interruptible(100)) /* 100ms */
- return(1);
+ return 1;
}
- return ((i > 0) ? 0:1);
+ return (i > 0) ? 0 : 1;
}
/* Free's an allocated packet */
* subaction and returns immediately. Can be used from interrupts.
*/
static int sbp2util_node_write_no_wait(struct node_entry *ne, u64 addr,
- quadlet_t *buffer, size_t length)
+ quadlet_t *buffer, size_t length)
{
struct hpsb_packet *packet;
packet = hpsb_make_writepacket(ne->host, ne->nodeid,
addr, buffer, length);
- if (!packet)
- return -ENOMEM;
+ if (!packet)
+ return -ENOMEM;
- hpsb_set_packet_complete_task(packet, (void (*)(void*))sbp2_free_packet,
+ hpsb_set_packet_complete_task(packet,
+ (void (*)(void *))sbp2_free_packet,
packet);
hpsb_node_fill_packet(ne, packet);
- if (hpsb_send_packet(packet) < 0) {
+ if (hpsb_send_packet(packet) < 0) {
sbp2_free_packet(packet);
return -EIO;
}
spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags);
for (i = 0; i < orbs; i++) {
- command = (struct sbp2_command_info *)
- kmalloc(sizeof(struct sbp2_command_info), GFP_ATOMIC);
+ command = kzalloc(sizeof(*command), GFP_ATOMIC);
if (!command) {
- spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return(-ENOMEM);
+ spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock,
+ flags);
+ return -ENOMEM;
}
- memset(command, '\0', sizeof(struct sbp2_command_info));
command->command_orb_dma =
- pci_map_single (hi->host->pdev, &command->command_orb,
- sizeof(struct sbp2_command_orb),
- PCI_DMA_BIDIRECTIONAL);
+ pci_map_single(hi->host->pdev, &command->command_orb,
+ sizeof(struct sbp2_command_orb),
+ PCI_DMA_BIDIRECTIONAL);
SBP2_DMA_ALLOC("single command orb DMA");
command->sge_dma =
- pci_map_single (hi->host->pdev, &command->scatter_gather_element,
- sizeof(command->scatter_gather_element),
- PCI_DMA_BIDIRECTIONAL);
+ pci_map_single(hi->host->pdev,
+ &command->scatter_gather_element,
+ sizeof(command->scatter_gather_element),
+ PCI_DMA_BIDIRECTIONAL);
SBP2_DMA_ALLOC("scatter_gather_element");
INIT_LIST_HEAD(&command->list);
list_add_tail(&command->list, &scsi_id->sbp2_command_orb_completed);
list_for_each_entry(command, &scsi_id->sbp2_command_orb_inuse, list) {
if (command->command_orb_dma == orb) {
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return (command);
+ return command;
}
}
}
SBP2_ORB_DEBUG("could not match command orb %x", (unsigned int)orb);
- return(NULL);
+ return NULL;
}
/*
list_for_each_entry(command, &scsi_id->sbp2_command_orb_inuse, list) {
if (command->Current_SCpnt == SCpnt) {
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return (command);
+ return command;
}
}
}
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return(NULL);
+ return NULL;
}
/*
SBP2_ERR("sbp2util_allocate_command_orb - No orbs available!");
}
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return (command);
+ return command;
}
/* Free our DMA's */
/*
* This function moves a command to the completed orb list.
*/
-static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_id, struct sbp2_command_info *command)
+static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_id,
+ struct sbp2_command_info *command)
{
unsigned long flags;
return scsi_id && scsi_id->ne && !scsi_id->ne->in_limbo;
}
-\f
-
/*********************************************
* IEEE-1394 core driver stack related section
*********************************************/
if (ud->flags & UNIT_DIRECTORY_HAS_LUN_DIRECTORY)
return -ENODEV;
- scsi_id = sbp2_alloc_device(ud);
+ scsi_id = sbp2_alloc_device(ud);
- if (!scsi_id)
- return -ENOMEM;
+ if (!scsi_id)
+ return -ENOMEM;
- sbp2_parse_unit_directory(scsi_id, ud);
+ sbp2_parse_unit_directory(scsi_id, ud);
- return sbp2_start_device(scsi_id);
+ return sbp2_start_device(scsi_id);
}
static int sbp2_remove(struct device *dev)
SBP2_DEBUG("sbp2_alloc_device");
- scsi_id = kmalloc(sizeof(*scsi_id), GFP_KERNEL);
+ scsi_id = kzalloc(sizeof(*scsi_id), GFP_KERNEL);
if (!scsi_id) {
SBP2_ERR("failed to create scsi_id");
goto failed_alloc;
}
- memset(scsi_id, 0, sizeof(*scsi_id));
scsi_id->ne = ud->ne;
scsi_id->ud = ud;
INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_completed);
INIT_LIST_HEAD(&scsi_id->scsi_list);
spin_lock_init(&scsi_id->sbp2_command_orb_lock);
- scsi_id->sbp2_device_type_and_lun = SBP2_DEVICE_TYPE_LUN_UNINITIALIZED;
+ scsi_id->sbp2_lun = 0;
ud->device.driver_data = scsi_id;
/* Register our host with the SCSI stack. */
scsi_host = scsi_host_alloc(&scsi_driver_template,
- sizeof (unsigned long));
+ sizeof(unsigned long));
if (!scsi_host) {
SBP2_ERR("failed to register scsi host");
goto failed_alloc;
return NULL;
}
-
static void sbp2_host_reset(struct hpsb_host *host)
{
struct sbp2scsi_host_info *hi;
}
}
-
/*
* This function is where we first pull the node unique ids, and then
* allocate memory and register a SBP-2 device.
/* Login FIFO DMA */
scsi_id->login_response =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_login_response),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_login_response),
&scsi_id->login_response_dma);
if (!scsi_id->login_response)
goto alloc_fail;
/* Query logins ORB DMA */
scsi_id->query_logins_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_query_logins_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_query_logins_orb),
&scsi_id->query_logins_orb_dma);
if (!scsi_id->query_logins_orb)
goto alloc_fail;
/* Query logins response DMA */
scsi_id->query_logins_response =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_query_logins_response),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_query_logins_response),
&scsi_id->query_logins_response_dma);
if (!scsi_id->query_logins_response)
goto alloc_fail;
/* Reconnect ORB DMA */
scsi_id->reconnect_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_reconnect_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_reconnect_orb),
&scsi_id->reconnect_orb_dma);
if (!scsi_id->reconnect_orb)
goto alloc_fail;
/* Logout ORB DMA */
scsi_id->logout_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_logout_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_logout_orb),
&scsi_id->logout_orb_dma);
if (!scsi_id->logout_orb)
goto alloc_fail;
/* Login ORB DMA */
scsi_id->login_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_login_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_login_orb),
&scsi_id->login_orb_dma);
- if (!scsi_id->login_orb) {
-alloc_fail:
- if (scsi_id->query_logins_response) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_query_logins_response),
- scsi_id->query_logins_response,
- scsi_id->query_logins_response_dma);
- SBP2_DMA_FREE("query logins response DMA");
- }
-
- if (scsi_id->query_logins_orb) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_query_logins_orb),
- scsi_id->query_logins_orb,
- scsi_id->query_logins_orb_dma);
- SBP2_DMA_FREE("query logins ORB DMA");
- }
-
- if (scsi_id->logout_orb) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_logout_orb),
- scsi_id->logout_orb,
- scsi_id->logout_orb_dma);
- SBP2_DMA_FREE("logout ORB DMA");
- }
-
- if (scsi_id->reconnect_orb) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_reconnect_orb),
- scsi_id->reconnect_orb,
- scsi_id->reconnect_orb_dma);
- SBP2_DMA_FREE("reconnect ORB DMA");
- }
-
- if (scsi_id->login_response) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_login_response),
- scsi_id->login_response,
- scsi_id->login_response_dma);
- SBP2_DMA_FREE("login FIFO DMA");
- }
-
- list_del(&scsi_id->scsi_list);
-
- kfree(scsi_id);
-
- SBP2_ERR ("Could not allocate memory for scsi_id");
-
- return -ENOMEM;
- }
+ if (!scsi_id->login_orb)
+ goto alloc_fail;
SBP2_DMA_ALLOC("consistent DMA region for login ORB");
SBP2_DEBUG("New SBP-2 device inserted, SCSI ID = %x", scsi_id->ud->id);
sbp2_remove_device(scsi_id);
return -EINTR;
}
-
+
/*
* Login to the sbp-2 device
*/
error = scsi_add_device(scsi_id->scsi_host, 0, scsi_id->ud->id, 0);
if (error) {
SBP2_ERR("scsi_add_device failed");
+ sbp2_logout_device(scsi_id);
+ sbp2_remove_device(scsi_id);
return error;
}
return 0;
+
+alloc_fail:
+ SBP2_ERR("Could not allocate memory for scsi_id");
+ sbp2_remove_device(scsi_id);
+ return -ENOMEM;
}
/*
* This function deals with physical dma write requests (for adapters that do not support
* physical dma in hardware). Mostly just here for debugging...
*/
-static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, int destid, quadlet_t *data,
- u64 addr, size_t length, u16 flags)
+static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid,
+ int destid, quadlet_t *data, u64 addr,
+ size_t length, u16 flags)
{
- /*
- * Manually put the data in the right place.
- */
- memcpy(bus_to_virt((u32)addr), data, length);
- sbp2util_packet_dump(data, length, "sbp2 phys dma write by device", (u32)addr);
- return(RCODE_COMPLETE);
+ /*
+ * Manually put the data in the right place.
+ */
+ memcpy(bus_to_virt((u32) addr), data, length);
+ sbp2util_packet_dump(data, length, "sbp2 phys dma write by device",
+ (u32) addr);
+ return RCODE_COMPLETE;
}
/*
* This function deals with physical dma read requests (for adapters that do not support
* physical dma in hardware). Mostly just here for debugging...
*/
-static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_t *data,
- u64 addr, size_t length, u16 flags)
+static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid,
+ quadlet_t *data, u64 addr, size_t length,
+ u16 flags)
{
- /*
- * Grab data from memory and send a read response.
- */
- memcpy(data, bus_to_virt((u32)addr), length);
- sbp2util_packet_dump(data, length, "sbp2 phys dma read by device", (u32)addr);
- return(RCODE_COMPLETE);
+ /*
+ * Grab data from memory and send a read response.
+ */
+ memcpy(data, bus_to_virt((u32) addr), length);
+ sbp2util_packet_dump(data, length, "sbp2 phys dma read by device",
+ (u32) addr);
+ return RCODE_COMPLETE;
}
#endif
-
/**************************************
* SBP-2 protocol related section
**************************************/
-/*
- * This function determines if we should convert scsi commands for a particular sbp2 device type
- */
-static __inline__ int sbp2_command_conversion_device_type(u8 device_type)
-{
- return (((device_type == TYPE_DISK) ||
- (device_type == TYPE_RBC) ||
- (device_type == TYPE_ROM)) ? 1:0);
-}
-
/*
* This function queries the device for the maximum concurrent logins it
* supports.
scsi_id->query_logins_orb->lun_misc = ORB_SET_FUNCTION(SBP2_QUERY_LOGINS_REQUEST);
scsi_id->query_logins_orb->lun_misc |= ORB_SET_NOTIFY(1);
- if (scsi_id->sbp2_device_type_and_lun != SBP2_DEVICE_TYPE_LUN_UNINITIALIZED) {
- scsi_id->query_logins_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun);
- SBP2_DEBUG("sbp2_query_logins: set lun to %d",
- ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun));
- }
+ scsi_id->query_logins_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_lun);
SBP2_DEBUG("sbp2_query_logins: lun_misc initialized");
scsi_id->query_logins_orb->reserved_resp_length =
if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, 2*HZ)) {
SBP2_INFO("Error querying logins to SBP-2 device - timed out");
- return(-EIO);
+ return -EIO;
}
if (scsi_id->status_block.ORB_offset_lo != scsi_id->query_logins_orb_dma) {
SBP2_INFO("Error querying logins to SBP-2 device - timed out");
- return(-EIO);
+ return -EIO;
}
if (STATUS_GET_RESP(scsi_id->status_block.ORB_offset_hi_misc) ||
STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
SBP2_INFO("Error querying logins to SBP-2 device - timed out");
- return(-EIO);
+ return -EIO;
}
sbp2util_cpu_to_be32_buffer(scsi_id->query_logins_response, sizeof(struct sbp2_query_logins_response));
SBP2_DEBUG("Number of active logins: %d", active_logins);
if (active_logins >= max_logins) {
- return(-EIO);
+ return -EIO;
}
return 0;
if (!scsi_id->login_orb) {
SBP2_DEBUG("sbp2_login_device: login_orb not alloc'd!");
- return(-EIO);
+ return -EIO;
}
if (!exclusive_login) {
if (sbp2_query_logins(scsi_id)) {
SBP2_INFO("Device does not support any more concurrent logins");
- return(-EIO);
+ return -EIO;
}
}
scsi_id->login_orb->lun_misc |= ORB_SET_RECONNECT(0); /* One second reconnect time */
scsi_id->login_orb->lun_misc |= ORB_SET_EXCLUSIVE(exclusive_login); /* Exclusive access to device */
scsi_id->login_orb->lun_misc |= ORB_SET_NOTIFY(1); /* Notify us of login complete */
- /* Set the lun if we were able to pull it from the device's unit directory */
- if (scsi_id->sbp2_device_type_and_lun != SBP2_DEVICE_TYPE_LUN_UNINITIALIZED) {
- scsi_id->login_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun);
- SBP2_DEBUG("sbp2_query_logins: set lun to %d",
- ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun));
- }
+ scsi_id->login_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_lun);
SBP2_DEBUG("sbp2_login_device: lun_misc initialized");
scsi_id->login_orb->passwd_resp_lengths =
*/
if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, 20*HZ)) {
SBP2_ERR("Error logging into SBP-2 device - login timed-out");
- return(-EIO);
+ return -EIO;
}
/*
*/
if (scsi_id->status_block.ORB_offset_lo != scsi_id->login_orb_dma) {
SBP2_ERR("Error logging into SBP-2 device - login timed-out");
- return(-EIO);
+ return -EIO;
}
/*
STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
SBP2_ERR("Error logging into SBP-2 device - login failed");
- return(-EIO);
+ return -EIO;
}
/*
SBP2_INFO("Logged into SBP-2 device");
- return(0);
+ return 0;
}
atomic_set(&scsi_id->sbp2_login_complete, 0);
error = hpsb_node_write(scsi_id->ne,
- scsi_id->sbp2_management_agent_addr,
- data, 8);
+ scsi_id->sbp2_management_agent_addr, data, 8);
if (error)
return error;
SBP2_INFO("Logged out of SBP-2 device");
- return(0);
+ return 0;
}
atomic_set(&scsi_id->sbp2_login_complete, 0);
error = hpsb_node_write(scsi_id->ne,
- scsi_id->sbp2_management_agent_addr,
- data, 8);
+ scsi_id->sbp2_management_agent_addr, data, 8);
if (error)
return error;
*/
if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, HZ)) {
SBP2_ERR("Error reconnecting to SBP-2 device - reconnect timed-out");
- return(-EIO);
+ return -EIO;
}
/*
*/
if (scsi_id->status_block.ORB_offset_lo != scsi_id->reconnect_orb_dma) {
SBP2_ERR("Error reconnecting to SBP-2 device - reconnect timed-out");
- return(-EIO);
+ return -EIO;
}
/*
STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
SBP2_ERR("Error reconnecting to SBP-2 device - reconnect failed");
- return(-EIO);
+ return -EIO;
}
HPSB_DEBUG("Reconnected to SBP-2 device");
- return(0);
+ return 0;
}
SBP2_ERR("sbp2_set_busy_timeout error");
}
- return(0);
+ return 0;
}
-
/*
* This function is called to parse sbp2 device's config rom unit
* directory. Used to determine things like sbp2 management agent offset,
struct csr1212_dentry *dentry;
u64 management_agent_addr;
u32 command_set_spec_id, command_set, unit_characteristics,
- firmware_revision, workarounds;
+ firmware_revision, workarounds;
int i;
SBP2_DEBUG("sbp2_parse_unit_directory");
if (kv->key.type == CSR1212_KV_TYPE_CSR_OFFSET) {
/* Save off the management agent address */
management_agent_addr =
- CSR1212_REGISTER_SPACE_BASE +
- (kv->value.csr_offset << 2);
+ CSR1212_REGISTER_SPACE_BASE +
+ (kv->value.csr_offset << 2);
SBP2_DEBUG("sbp2_management_agent_addr = %x",
- (unsigned int) management_agent_addr);
+ (unsigned int)management_agent_addr);
} else if (kv->key.type == CSR1212_KV_TYPE_IMMEDIATE) {
- scsi_id->sbp2_device_type_and_lun = kv->value.immediate;
+ scsi_id->sbp2_lun =
+ ORB_SET_LUN(kv->value.immediate);
}
break;
/* Command spec organization */
command_set_spec_id = kv->value.immediate;
SBP2_DEBUG("sbp2_command_set_spec_id = %x",
- (unsigned int) command_set_spec_id);
+ (unsigned int)command_set_spec_id);
break;
case SBP2_COMMAND_SET_KEY:
/* Command set used by sbp2 device */
command_set = kv->value.immediate;
SBP2_DEBUG("sbp2_command_set = %x",
- (unsigned int) command_set);
+ (unsigned int)command_set);
break;
case SBP2_UNIT_CHARACTERISTICS_KEY:
*/
unit_characteristics = kv->value.immediate;
SBP2_DEBUG("sbp2_unit_characteristics = %x",
- (unsigned int) unit_characteristics);
+ (unsigned int)unit_characteristics);
break;
case SBP2_FIRMWARE_REVISION_KEY:
firmware_revision = kv->value.immediate;
if (force_inquiry_hack)
SBP2_INFO("sbp2_firmware_revision = %x",
- (unsigned int) firmware_revision);
- else SBP2_DEBUG("sbp2_firmware_revision = %x",
- (unsigned int) firmware_revision);
+ (unsigned int)firmware_revision);
+ else
+ SBP2_DEBUG("sbp2_firmware_revision = %x",
+ (unsigned int)firmware_revision);
break;
default:
scsi_id->sbp2_firmware_revision = firmware_revision;
scsi_id->workarounds = workarounds;
if (ud->flags & UNIT_DIRECTORY_HAS_LUN)
- scsi_id->sbp2_device_type_and_lun = ud->lun;
+ scsi_id->sbp2_lun = ORB_SET_LUN(ud->lun);
}
}
SBP2_DEBUG("sbp2_max_speed_and_size");
/* Initial setting comes from the hosts speed map */
- scsi_id->speed_code = hi->host->speed_map[NODEID_TO_NODE(hi->host->node_id) * 64
- + NODEID_TO_NODE(scsi_id->ne->nodeid)];
+ scsi_id->speed_code =
+ hi->host->speed_map[NODEID_TO_NODE(hi->host->node_id) * 64 +
+ NODEID_TO_NODE(scsi_id->ne->nodeid)];
/* Bump down our speed if the user requested it */
if (scsi_id->speed_code > max_speed) {
/* Payload size is the lesser of what our speed supports and what
* our host supports. */
- scsi_id->max_payload_size = min(sbp2_speedto_max_payload[scsi_id->speed_code],
- (u8)(hi->host->csr.max_rec - 1));
+ scsi_id->max_payload_size =
+ min(sbp2_speedto_max_payload[scsi_id->speed_code],
+ (u8) (hi->host->csr.max_rec - 1));
HPSB_DEBUG("Node " NODE_BUS_FMT ": Max speed [%s] - Max payload [%u]",
NODE_BUS_ARGS(hi->host, scsi_id->ne->nodeid),
hpsb_speedto_str[scsi_id->speed_code],
- 1 << ((u32)scsi_id->max_payload_size + 2));
+ 1 << ((u32) scsi_id->max_payload_size + 2));
- return(0);
+ return 0;
}
/*
*/
scsi_id->last_orb = NULL;
- return(0);
+ return 0;
+}
+
+static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
+ struct sbp2scsi_host_info *hi,
+ struct sbp2_command_info *command,
+ unsigned int scsi_use_sg,
+ struct scatterlist *sgpnt,
+ u32 orb_direction,
+ enum dma_data_direction dma_dir)
+{
+ command->dma_dir = dma_dir;
+ orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
+ orb->misc |= ORB_SET_DIRECTION(orb_direction);
+
+ /* Special case if only one element (and less than 64KB in size) */
+ if ((scsi_use_sg == 1) &&
+ (sgpnt[0].length <= SBP2_MAX_SG_ELEMENT_LENGTH)) {
+
+ SBP2_DEBUG("Only one s/g element");
+ command->dma_size = sgpnt[0].length;
+ command->dma_type = CMD_DMA_PAGE;
+ command->cmd_dma = pci_map_page(hi->host->pdev,
+ sgpnt[0].page,
+ sgpnt[0].offset,
+ command->dma_size,
+ command->dma_dir);
+ SBP2_DMA_ALLOC("single page scatter element");
+
+ orb->data_descriptor_lo = command->cmd_dma;
+ orb->misc |= ORB_SET_DATA_SIZE(command->dma_size);
+
+ } else {
+ struct sbp2_unrestricted_page_table *sg_element =
+ &command->scatter_gather_element[0];
+ u32 sg_count, sg_len;
+ dma_addr_t sg_addr;
+ int i, count = pci_map_sg(hi->host->pdev, sgpnt, scsi_use_sg,
+ dma_dir);
+
+ SBP2_DMA_ALLOC("scatter list");
+
+ command->dma_size = scsi_use_sg;
+ command->sge_buffer = sgpnt;
+
+ /* use page tables (s/g) */
+ orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
+ orb->data_descriptor_lo = command->sge_dma;
+
+ /*
+ * Loop through and fill out our sbp-2 page tables
+ * (and split up anything too large)
+ */
+ for (i = 0, sg_count = 0 ; i < count; i++, sgpnt++) {
+ sg_len = sg_dma_len(sgpnt);
+ sg_addr = sg_dma_address(sgpnt);
+ while (sg_len) {
+ sg_element[sg_count].segment_base_lo = sg_addr;
+ if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
+ sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
+ sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
+ } else {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
+ sg_len = 0;
+ }
+ sg_count++;
+ }
+ }
+
+ /* Number of page table (s/g) elements */
+ orb->misc |= ORB_SET_DATA_SIZE(sg_count);
+
+ sbp2util_packet_dump(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
+ "sbp2 s/g list", command->sge_dma);
+
+ /* Byte swap page tables if necessary */
+ sbp2util_cpu_to_be32_buffer(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) *
+ sg_count);
+ }
+}
+
+static void sbp2_prep_command_orb_no_sg(struct sbp2_command_orb *orb,
+ struct sbp2scsi_host_info *hi,
+ struct sbp2_command_info *command,
+ struct scatterlist *sgpnt,
+ u32 orb_direction,
+ unsigned int scsi_request_bufflen,
+ void *scsi_request_buffer,
+ enum dma_data_direction dma_dir)
+{
+ command->dma_dir = dma_dir;
+ command->dma_size = scsi_request_bufflen;
+ command->dma_type = CMD_DMA_SINGLE;
+ command->cmd_dma = pci_map_single(hi->host->pdev, scsi_request_buffer,
+ command->dma_size, command->dma_dir);
+ orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
+ orb->misc |= ORB_SET_DIRECTION(orb_direction);
+
+ SBP2_DMA_ALLOC("single bulk");
+
+ /*
+ * Handle case where we get a command w/o s/g enabled (but
+ * check for transfers larger than 64K)
+ */
+ if (scsi_request_bufflen <= SBP2_MAX_SG_ELEMENT_LENGTH) {
+
+ orb->data_descriptor_lo = command->cmd_dma;
+ orb->misc |= ORB_SET_DATA_SIZE(scsi_request_bufflen);
+
+ } else {
+ struct sbp2_unrestricted_page_table *sg_element =
+ &command->scatter_gather_element[0];
+ u32 sg_count, sg_len;
+ dma_addr_t sg_addr;
+
+ /*
+ * Need to turn this into page tables, since the
+ * buffer is too large.
+ */
+ orb->data_descriptor_lo = command->sge_dma;
+
+ /* Use page tables (s/g) */
+ orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
+
+ /*
+ * fill out our sbp-2 page tables (and split up
+ * the large buffer)
+ */
+ sg_count = 0;
+ sg_len = scsi_request_bufflen;
+ sg_addr = command->cmd_dma;
+ while (sg_len) {
+ sg_element[sg_count].segment_base_lo = sg_addr;
+ if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
+ sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
+ sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
+ } else {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
+ sg_len = 0;
+ }
+ sg_count++;
+ }
+
+ /* Number of page table (s/g) elements */
+ orb->misc |= ORB_SET_DATA_SIZE(sg_count);
+
+ sbp2util_packet_dump(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
+ "sbp2 s/g list", command->sge_dma);
+
+ /* Byte swap page tables if necessary */
+ sbp2util_cpu_to_be32_buffer(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) *
+ sg_count);
+ }
}
/*
* This function is called to create the actual command orb and s/g list
* out of the scsi command itself.
*/
-static int sbp2_create_command_orb(struct scsi_id_instance_data *scsi_id,
- struct sbp2_command_info *command,
- unchar *scsi_cmd,
- unsigned int scsi_use_sg,
- unsigned int scsi_request_bufflen,
- void *scsi_request_buffer,
- enum dma_data_direction dma_dir)
-
+static void sbp2_create_command_orb(struct scsi_id_instance_data *scsi_id,
+ struct sbp2_command_info *command,
+ unchar *scsi_cmd,
+ unsigned int scsi_use_sg,
+ unsigned int scsi_request_bufflen,
+ void *scsi_request_buffer,
+ enum dma_data_direction dma_dir)
{
struct sbp2scsi_host_info *hi = scsi_id->hi;
- struct scatterlist *sgpnt = (struct scatterlist *) scsi_request_buffer;
+ struct scatterlist *sgpnt = (struct scatterlist *)scsi_request_buffer;
struct sbp2_command_orb *command_orb = &command->command_orb;
- struct sbp2_unrestricted_page_table *scatter_gather_element =
- &command->scatter_gather_element[0];
- u32 sg_count, sg_len, orb_direction;
- dma_addr_t sg_addr;
- int i;
+ u32 orb_direction;
/*
* Set-up our command ORB..
command_orb->next_ORB_lo = 0x0;
command_orb->misc = ORB_SET_MAX_PAYLOAD(scsi_id->max_payload_size);
command_orb->misc |= ORB_SET_SPEED(scsi_id->speed_code);
- command_orb->misc |= ORB_SET_NOTIFY(1); /* Notify us when complete */
+ command_orb->misc |= ORB_SET_NOTIFY(1); /* Notify us when complete */
- /*
- * Get the direction of the transfer. If the direction is unknown, then use our
- * goofy table as a back-up.
- */
- switch (dma_dir) {
- case DMA_NONE:
- orb_direction = ORB_DIRECTION_NO_DATA_TRANSFER;
- break;
- case DMA_TO_DEVICE:
- orb_direction = ORB_DIRECTION_WRITE_TO_MEDIA;
- break;
- case DMA_FROM_DEVICE:
- orb_direction = ORB_DIRECTION_READ_FROM_MEDIA;
- break;
- case DMA_BIDIRECTIONAL:
- default:
- SBP2_ERR("SCSI data transfer direction not specified. "
- "Update the SBP2 direction table in sbp2.h if "
- "necessary for your application");
- __scsi_print_command(scsi_cmd);
- orb_direction = sbp2scsi_direction_table[*scsi_cmd];
- break;
+ if (dma_dir == DMA_NONE)
+ orb_direction = ORB_DIRECTION_NO_DATA_TRANSFER;
+ else if (dma_dir == DMA_TO_DEVICE && scsi_request_bufflen)
+ orb_direction = ORB_DIRECTION_WRITE_TO_MEDIA;
+ else if (dma_dir == DMA_FROM_DEVICE && scsi_request_bufflen)
+ orb_direction = ORB_DIRECTION_READ_FROM_MEDIA;
+ else {
+ SBP2_WARN("Falling back to DMA_NONE");
+ orb_direction = ORB_DIRECTION_NO_DATA_TRANSFER;
}
- /*
- * Set-up our pagetable stuff... unfortunately, this has become
- * messier than I'd like. Need to clean this up a bit. ;-)
- */
+ /* Set-up our pagetable stuff */
if (orb_direction == ORB_DIRECTION_NO_DATA_TRANSFER) {
-
SBP2_DEBUG("No data transfer");
-
- /*
- * Handle no data transfer
- */
command_orb->data_descriptor_hi = 0x0;
command_orb->data_descriptor_lo = 0x0;
command_orb->misc |= ORB_SET_DIRECTION(1);
-
} else if (scsi_use_sg) {
-
SBP2_DEBUG("Use scatter/gather");
-
- /*
- * Special case if only one element (and less than 64KB in size)
- */
- if ((scsi_use_sg == 1) && (sgpnt[0].length <= SBP2_MAX_SG_ELEMENT_LENGTH)) {
-
- SBP2_DEBUG("Only one s/g element");
- command->dma_dir = dma_dir;
- command->dma_size = sgpnt[0].length;
- command->dma_type = CMD_DMA_PAGE;
- command->cmd_dma = pci_map_page(hi->host->pdev,
- sgpnt[0].page,
- sgpnt[0].offset,
- command->dma_size,
- command->dma_dir);
- SBP2_DMA_ALLOC("single page scatter element");
-
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->cmd_dma;
- command_orb->misc |= ORB_SET_DATA_SIZE(command->dma_size);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
-
- } else {
- int count = pci_map_sg(hi->host->pdev, sgpnt, scsi_use_sg, dma_dir);
- SBP2_DMA_ALLOC("scatter list");
-
- command->dma_size = scsi_use_sg;
- command->dma_dir = dma_dir;
- command->sge_buffer = sgpnt;
-
- /* use page tables (s/g) */
- command_orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->sge_dma;
-
- /*
- * Loop through and fill out our sbp-2 page tables
- * (and split up anything too large)
- */
- for (i = 0, sg_count = 0 ; i < count; i++, sgpnt++) {
- sg_len = sg_dma_len(sgpnt);
- sg_addr = sg_dma_address(sgpnt);
- while (sg_len) {
- scatter_gather_element[sg_count].segment_base_lo = sg_addr;
- if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
- sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
- sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
- } else {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
- sg_len = 0;
- }
- sg_count++;
- }
- }
-
- /* Number of page table (s/g) elements */
- command_orb->misc |= ORB_SET_DATA_SIZE(sg_count);
-
- sbp2util_packet_dump(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
- "sbp2 s/g list", command->sge_dma);
-
- /*
- * Byte swap page tables if necessary
- */
- sbp2util_cpu_to_be32_buffer(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) *
- sg_count);
-
- }
-
+ sbp2_prep_command_orb_sg(command_orb, hi, command, scsi_use_sg,
+ sgpnt, orb_direction, dma_dir);
} else {
-
SBP2_DEBUG("No scatter/gather");
-
- command->dma_dir = dma_dir;
- command->dma_size = scsi_request_bufflen;
- command->dma_type = CMD_DMA_SINGLE;
- command->cmd_dma = pci_map_single (hi->host->pdev, scsi_request_buffer,
- command->dma_size,
- command->dma_dir);
- SBP2_DMA_ALLOC("single bulk");
-
- /*
- * Handle case where we get a command w/o s/g enabled (but
- * check for transfers larger than 64K)
- */
- if (scsi_request_bufflen <= SBP2_MAX_SG_ELEMENT_LENGTH) {
-
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->cmd_dma;
- command_orb->misc |= ORB_SET_DATA_SIZE(scsi_request_bufflen);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
-
- /*
- * Sanity, in case our direction table is not
- * up-to-date
- */
- if (!scsi_request_bufflen) {
- command_orb->data_descriptor_hi = 0x0;
- command_orb->data_descriptor_lo = 0x0;
- command_orb->misc |= ORB_SET_DIRECTION(1);
- }
-
- } else {
- /*
- * Need to turn this into page tables, since the
- * buffer is too large.
- */
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->sge_dma;
-
- /* Use page tables (s/g) */
- command_orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
-
- /*
- * fill out our sbp-2 page tables (and split up
- * the large buffer)
- */
- sg_count = 0;
- sg_len = scsi_request_bufflen;
- sg_addr = command->cmd_dma;
- while (sg_len) {
- scatter_gather_element[sg_count].segment_base_lo = sg_addr;
- if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
- sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
- sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
- } else {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
- sg_len = 0;
- }
- sg_count++;
- }
-
- /* Number of page table (s/g) elements */
- command_orb->misc |= ORB_SET_DATA_SIZE(sg_count);
-
- sbp2util_packet_dump(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
- "sbp2 s/g list", command->sge_dma);
-
- /*
- * Byte swap page tables if necessary
- */
- sbp2util_cpu_to_be32_buffer(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) *
- sg_count);
-
- }
-
+ sbp2_prep_command_orb_no_sg(command_orb, hi, command, sgpnt,
+ orb_direction, scsi_request_bufflen,
+ scsi_request_buffer, dma_dir);
}
- /*
- * Byte swap command ORB if necessary
- */
+ /* Byte swap command ORB if necessary */
sbp2util_cpu_to_be32_buffer(command_orb, sizeof(struct sbp2_command_orb));
- /*
- * Put our scsi command in the command ORB
- */
+ /* Put our scsi command in the command ORB */
memset(command_orb->cdb, 0, 12);
memcpy(command_orb->cdb, scsi_cmd, COMMAND_SIZE(*scsi_cmd));
-
- return(0);
}
/*
outstanding_orb_incr;
SBP2_ORB_DEBUG("sending command orb %p, total orbs = %x",
- command_orb, global_outstanding_command_orbs);
+ command_orb, global_outstanding_command_orbs);
pci_dma_sync_single_for_device(hi->host->pdev, command->command_orb_dma,
sizeof(struct sbp2_command_orb),
* both by the sbp2 device and us.
*/
scsi_id->last_orb->next_ORB_lo =
- cpu_to_be32(command->command_orb_dma);
+ cpu_to_be32(command->command_orb_dma);
/* Tells hardware that this pointer is valid */
scsi_id->last_orb->next_ORB_hi = 0x0;
- pci_dma_sync_single_for_device(hi->host->pdev, scsi_id->last_orb_dma,
+ pci_dma_sync_single_for_device(hi->host->pdev,
+ scsi_id->last_orb_dma,
sizeof(struct sbp2_command_orb),
PCI_DMA_BIDIRECTIONAL);
if (sbp2util_node_write_no_wait(ne, addr, &data, 4) < 0) {
SBP2_ERR("sbp2util_node_write_no_wait failed");
- return(-EIO);
+ return -EIO;
}
scsi_id->last_orb = command_orb;
scsi_id->last_orb_dma = command->command_orb_dma;
}
- return(0);
+ return 0;
}
/*
*/
command = sbp2util_allocate_command_orb(scsi_id, SCpnt, done);
if (!command) {
- return(-EIO);
+ return -EIO;
}
/*
sbp2_create_command_orb(scsi_id, command, cmd, SCpnt->use_sg,
request_bufflen, SCpnt->request_buffer,
SCpnt->sc_data_direction);
- /*
- * Update our cdb if necessary (to handle sbp2 RBC command set
- * differences). This is where the command set hacks go! =)
- */
- sbp2_check_sbp2_command(scsi_id, command->command_orb.cdb);
sbp2util_packet_dump(&command->command_orb, sizeof(struct sbp2_command_orb),
"sbp2 command orb", command->command_orb_dma);
*/
sbp2_link_orb_command(scsi_id, command);
- return(0);
-}
-
-
-/*
- * This function deals with command set differences between Linux scsi
- * command set and sbp2 RBC command set.
- */
-static void sbp2_check_sbp2_command(struct scsi_id_instance_data *scsi_id, unchar *cmd)
-{
- unchar new_cmd[16];
- u8 device_type = SBP2_DEVICE_TYPE (scsi_id->sbp2_device_type_and_lun);
-
- SBP2_DEBUG("sbp2_check_sbp2_command");
-
- switch (*cmd) {
-
- case READ_6:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Convert READ_6 to READ_10");
-
- /*
- * Need to turn read_6 into read_10
- */
- new_cmd[0] = 0x28;
- new_cmd[1] = (cmd[1] & 0xe0);
- new_cmd[2] = 0x0;
- new_cmd[3] = (cmd[1] & 0x1f);
- new_cmd[4] = cmd[2];
- new_cmd[5] = cmd[3];
- new_cmd[6] = 0x0;
- new_cmd[7] = 0x0;
- new_cmd[8] = cmd[4];
- new_cmd[9] = cmd[5];
-
- memcpy(cmd, new_cmd, 10);
-
- }
-
- break;
-
- case WRITE_6:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Convert WRITE_6 to WRITE_10");
-
- /*
- * Need to turn write_6 into write_10
- */
- new_cmd[0] = 0x2a;
- new_cmd[1] = (cmd[1] & 0xe0);
- new_cmd[2] = 0x0;
- new_cmd[3] = (cmd[1] & 0x1f);
- new_cmd[4] = cmd[2];
- new_cmd[5] = cmd[3];
- new_cmd[6] = 0x0;
- new_cmd[7] = 0x0;
- new_cmd[8] = cmd[4];
- new_cmd[9] = cmd[5];
-
- memcpy(cmd, new_cmd, 10);
-
- }
-
- break;
-
- case MODE_SENSE:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Convert MODE_SENSE_6 to MODE_SENSE_10");
-
- /*
- * Need to turn mode_sense_6 into mode_sense_10
- */
- new_cmd[0] = 0x5a;
- new_cmd[1] = cmd[1];
- new_cmd[2] = cmd[2];
- new_cmd[3] = 0x0;
- new_cmd[4] = 0x0;
- new_cmd[5] = 0x0;
- new_cmd[6] = 0x0;
- new_cmd[7] = 0x0;
- new_cmd[8] = cmd[4];
- new_cmd[9] = cmd[5];
-
- memcpy(cmd, new_cmd, 10);
-
- }
-
- break;
-
- case MODE_SELECT:
-
- /*
- * TODO. Probably need to change mode select to 10 byte version
- */
-
- default:
- break;
- }
-
- return;
+ return 0;
}
/*
sense_data[14] = sbp2_status[20];
sense_data[15] = sbp2_status[21];
- return(sbp2_status[8] & 0x3f); /* return scsi status */
+ return sbp2_status[8] & 0x3f; /* return scsi status */
}
/*
* This function is called after a command is completed, in order to do any necessary SBP-2
* response data translations for the SCSI stack
*/
-static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
+static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
struct scsi_cmnd *SCpnt)
{
u8 *scsi_buf = SCpnt->request_buffer;
- u8 device_type = SBP2_DEVICE_TYPE (scsi_id->sbp2_device_type_and_lun);
SBP2_DEBUG("sbp2_check_sbp2_response");
- switch (SCpnt->cmnd[0]) {
-
- case INQUIRY:
-
- /*
- * If scsi_id->sbp2_device_type_and_lun is uninitialized, then fill
- * this information in from the inquiry response data. Lun is set to zero.
- */
- if (scsi_id->sbp2_device_type_and_lun == SBP2_DEVICE_TYPE_LUN_UNINITIALIZED) {
- SBP2_DEBUG("Creating sbp2_device_type_and_lun from scsi inquiry data");
- scsi_id->sbp2_device_type_and_lun = (scsi_buf[0] & 0x1f) << 16;
- }
-
- /*
- * Make sure data length is ok. Minimum length is 36 bytes
- */
- if (scsi_buf[4] == 0) {
- scsi_buf[4] = 36 - 5;
- }
-
- /*
- * Check for Simple Direct Access Device and change it to TYPE_DISK
- */
- if ((scsi_buf[0] & 0x1f) == TYPE_RBC) {
- SBP2_DEBUG("Changing TYPE_RBC to TYPE_DISK");
- scsi_buf[0] &= 0xe0;
- }
-
- /*
- * Fix ansi revision and response data format
- */
- scsi_buf[2] |= 2;
- scsi_buf[3] = (scsi_buf[3] & 0xf0) | 2;
-
- break;
-
- case MODE_SENSE:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Modify mode sense response (10 byte version)");
-
- scsi_buf[0] = scsi_buf[1]; /* Mode data length */
- scsi_buf[1] = scsi_buf[2]; /* Medium type */
- scsi_buf[2] = scsi_buf[3]; /* Device specific parameter */
- scsi_buf[3] = scsi_buf[7]; /* Block descriptor length */
- memcpy(scsi_buf + 4, scsi_buf + 8, scsi_buf[0]);
- }
-
- break;
-
- case MODE_SELECT:
-
- /*
- * TODO. Probably need to change mode select to 10 byte version
- */
+ if (SCpnt->cmnd[0] == INQUIRY && (SCpnt->cmnd[1] & 3) == 0) {
+ /*
+ * Make sure data length is ok. Minimum length is 36 bytes
+ */
+ if (scsi_buf[4] == 0) {
+ scsi_buf[4] = 36 - 5;
+ }
- default:
- break;
+ /*
+ * Fix ansi revision and response data format
+ */
+ scsi_buf[2] |= 2;
+ scsi_buf[3] = (scsi_buf[3] & 0xf0) | 2;
}
- return;
}
/*
if (!host) {
SBP2_ERR("host is NULL - this is bad!");
- return(RCODE_ADDRESS_ERROR);
+ return RCODE_ADDRESS_ERROR;
}
hi = hpsb_get_hostinfo(&sbp2_highlevel, host);
if (!hi) {
SBP2_ERR("host info is NULL - this is bad!");
- return(RCODE_ADDRESS_ERROR);
+ return RCODE_ADDRESS_ERROR;
}
/*
if (!scsi_id) {
SBP2_ERR("scsi_id is NULL - device is gone?");
- return(RCODE_ADDRESS_ERROR);
+ return RCODE_ADDRESS_ERROR;
}
/*
SBP2_ORB_DEBUG("command orb completed");
}
- return(RCODE_COMPLETE);
+ return RCODE_COMPLETE;
}
-
/**************************************
* SCSI interface related section
**************************************/
goto done;
}
+ /*
+ * Bidirectional commands are not yet implemented,
+ * and unknown transfer direction not handled.
+ */
+ if (SCpnt->sc_data_direction == DMA_BIDIRECTIONAL) {
+ SBP2_ERR("Cannot handle DMA_BIDIRECTIONAL - rejecting command");
+ result = DID_ERROR << 16;
+ goto done;
+ }
+
/*
* Try and send our SCSI command
*/
* complete the command, just let it get retried at the end of the
* bus reset.
*/
- if (!hpsb_node_entry_valid(scsi_id->ne) && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
+ if (!hpsb_node_entry_valid(scsi_id->ne)
+ && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
SBP2_ERR("Bus reset in progress - retry command later");
return;
}
-
+
/*
* Switch on scsi status
*/
switch (scsi_status) {
- case SBP2_SCSI_STATUS_GOOD:
- SCpnt->result = DID_OK;
- break;
+ case SBP2_SCSI_STATUS_GOOD:
+ SCpnt->result = DID_OK;
+ break;
- case SBP2_SCSI_STATUS_BUSY:
- SBP2_ERR("SBP2_SCSI_STATUS_BUSY");
- SCpnt->result = DID_BUS_BUSY << 16;
- break;
+ case SBP2_SCSI_STATUS_BUSY:
+ SBP2_ERR("SBP2_SCSI_STATUS_BUSY");
+ SCpnt->result = DID_BUS_BUSY << 16;
+ break;
- case SBP2_SCSI_STATUS_CHECK_CONDITION:
- SBP2_DEBUG("SBP2_SCSI_STATUS_CHECK_CONDITION");
- SCpnt->result = CHECK_CONDITION << 1;
+ case SBP2_SCSI_STATUS_CHECK_CONDITION:
+ SBP2_DEBUG("SBP2_SCSI_STATUS_CHECK_CONDITION");
+ SCpnt->result = CHECK_CONDITION << 1;
- /*
- * Debug stuff
- */
+ /*
+ * Debug stuff
+ */
#if CONFIG_IEEE1394_SBP2_DEBUG >= 1
- scsi_print_command(SCpnt);
- scsi_print_sense("bh", SCpnt);
+ scsi_print_command(SCpnt);
+ scsi_print_sense("bh", SCpnt);
#endif
- break;
+ break;
- case SBP2_SCSI_STATUS_SELECTION_TIMEOUT:
- SBP2_ERR("SBP2_SCSI_STATUS_SELECTION_TIMEOUT");
- SCpnt->result = DID_NO_CONNECT << 16;
- scsi_print_command(SCpnt);
- break;
+ case SBP2_SCSI_STATUS_SELECTION_TIMEOUT:
+ SBP2_ERR("SBP2_SCSI_STATUS_SELECTION_TIMEOUT");
+ SCpnt->result = DID_NO_CONNECT << 16;
+ scsi_print_command(SCpnt);
+ break;
- case SBP2_SCSI_STATUS_CONDITION_MET:
- case SBP2_SCSI_STATUS_RESERVATION_CONFLICT:
- case SBP2_SCSI_STATUS_COMMAND_TERMINATED:
- SBP2_ERR("Bad SCSI status = %x", scsi_status);
- SCpnt->result = DID_ERROR << 16;
- scsi_print_command(SCpnt);
- break;
+ case SBP2_SCSI_STATUS_CONDITION_MET:
+ case SBP2_SCSI_STATUS_RESERVATION_CONFLICT:
+ case SBP2_SCSI_STATUS_COMMAND_TERMINATED:
+ SBP2_ERR("Bad SCSI status = %x", scsi_status);
+ SCpnt->result = DID_ERROR << 16;
+ scsi_print_command(SCpnt);
+ break;
- default:
- SBP2_ERR("Unsupported SCSI status = %x", scsi_status);
- SCpnt->result = DID_ERROR << 16;
+ default:
+ SBP2_ERR("Unsupported SCSI status = %x", scsi_status);
+ SCpnt->result = DID_ERROR << 16;
}
/*
* If a bus reset is in progress and there was an error, complete
* the command as busy so that it will get retried.
*/
- if (!hpsb_node_entry_valid(scsi_id->ne) && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
+ if (!hpsb_node_entry_valid(scsi_id->ne)
+ && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
SBP2_ERR("Completing command with busy (bus reset)");
SCpnt->result = DID_BUS_BUSY << 16;
}
/*
* Tell scsi stack that we're done with this command
*/
- done (SCpnt);
+ done(SCpnt);
}
-
static int sbp2scsi_slave_alloc(struct scsi_device *sdev)
{
((struct scsi_id_instance_data *)sdev->host->hostdata[0])->sdev = sdev;
return 0;
}
-
static int sbp2scsi_slave_configure(struct scsi_device *sdev)
{
blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
+ sdev->use_10_for_rw = 1;
+ sdev->use_10_for_ms = 1;
return 0;
}
-
static void sbp2scsi_slave_destroy(struct scsi_device *sdev)
{
((struct scsi_id_instance_data *)sdev->host->hostdata[0])->sdev = NULL;
return;
}
-
/*
* Called by scsi stack when something has really gone wrong. Usually
* called when a command has timed-out for some reason.
sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY);
}
- return(SUCCESS);
+ return SUCCESS;
}
/*
{
struct scsi_id_instance_data *scsi_id =
(struct scsi_id_instance_data *)SCpnt->device->host->hostdata[0];
- unsigned long flags;
SBP2_ERR("reset requested");
- spin_lock_irqsave(SCpnt->device->host->host_lock, flags);
-
if (sbp2util_node_is_available(scsi_id)) {
SBP2_ERR("Generating sbp2 fetch agent reset");
sbp2_agent_reset(scsi_id, 0);
}
- spin_unlock_irqrestore(SCpnt->device->host->host_lock, flags);
-
return SUCCESS;
}
-static const char *sbp2scsi_info (struct Scsi_Host *host)
-{
- return "SCSI emulation for IEEE-1394 SBP-2 Devices";
-}
-
-static ssize_t sbp2_sysfs_ieee1394_id_show(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t sbp2_sysfs_ieee1394_id_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
struct scsi_device *sdev;
struct scsi_id_instance_data *scsi_id;
if (!(scsi_id = (struct scsi_id_instance_data *)sdev->host->hostdata[0]))
return 0;
- if (scsi_id->sbp2_device_type_and_lun == SBP2_DEVICE_TYPE_LUN_UNINITIALIZED)
- lun = 0;
- else
- lun = ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun);
+ lun = ORB_SET_LUN(scsi_id->sbp2_lun);
return sprintf(buf, "%016Lx:%d:%d\n", (unsigned long long)scsi_id->ne->guid,
scsi_id->ud->id, lun);
.module = THIS_MODULE,
.name = "SBP-2 IEEE-1394",
.proc_name = SBP2_DEVICE_NAME,
- .info = sbp2scsi_info,
.queuecommand = sbp2scsi_queuecommand,
.eh_abort_handler = sbp2scsi_abort,
.eh_device_reset_handler = sbp2scsi_reset,
- .eh_bus_reset_handler = sbp2scsi_reset,
- .eh_host_reset_handler = sbp2scsi_reset,
.slave_alloc = sbp2scsi_slave_alloc,
.slave_configure = sbp2scsi_slave_configure,
.slave_destroy = sbp2scsi_slave_destroy,
SBP2_DEBUG("sbp2_module_init");
- printk(KERN_INFO "sbp2: %s\n", version);
-
/* Module load debug option to force one command at a time (serializing I/O) */
if (serialize_io) {
SBP2_INFO("Driver forced to serialize I/O (serialize_io=1)");
/* Set max sectors (module load option). Default is 255 sectors. */
scsi_driver_template.max_sectors = max_sectors;
-
/* Register our high level driver with 1394 stack */
hpsb_register_highlevel(&sbp2_highlevel);
git.samba.org / sfrench / cifs-2.6.git / blobdiff