#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
+#include <linux/mm.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/stat.h>
#include <linux/stringify.h>
#include <linux/types.h>
#include <linux/wait.h>
+#include <linux/workqueue.h>
+#include <linux/scatterlist.h>
#include <asm/byteorder.h>
#include <asm/errno.h>
#include <asm/param.h>
-#include <asm/scatterlist.h>
#include <asm/system.h>
#include <asm/types.h>
"(3 = 800Mb/s, 2 = 400Mb/s, 1 = 200Mb/s, 0 = 100Mb/s)");
/*
- * Set serialize_io to 1 if you'd like only one scsi command sent
- * down to us at a time (debugging). This might be necessary for very
- * badly behaved sbp2 devices.
+ * Set serialize_io to 0 or N to use dynamically appended lists of command ORBs.
+ * This is and always has been buggy in multiple subtle ways. See above TODOs.
*/
static int sbp2_serialize_io = 1;
-module_param_named(serialize_io, sbp2_serialize_io, int, 0444);
-MODULE_PARM_DESC(serialize_io, "Serialize I/O coming from scsi drivers "
- "(default = 1, faster = 0)");
+module_param_named(serialize_io, sbp2_serialize_io, bool, 0444);
+MODULE_PARM_DESC(serialize_io, "Serialize requests coming from SCSI drivers "
+ "(default = Y, faster but buggy = N)");
/*
- * Bump up max_sectors if you'd like to support very large sized
- * transfers. Please note that some older sbp2 bridge chips are broken for
- * transfers greater or equal to 128KB. Default is a value of 255
- * sectors, or just under 128KB (at 512 byte sector size). I can note that
- * the Oxsemi sbp2 chipsets have no problems supporting very large
- * transfer sizes.
+ * Adjust max_sectors if you'd like to influence how many sectors each SCSI
+ * command can transfer at most. Please note that some older SBP-2 bridge
+ * chips are broken for transfers greater or equal to 128KB, therefore
+ * max_sectors used to be a safe 255 sectors for many years. We now have a
+ * default of 0 here which means that we let the SCSI stack choose a limit.
+ *
+ * The SBP2_WORKAROUND_128K_MAX_TRANS flag, if set either in the workarounds
+ * module parameter or in the sbp2_workarounds_table[], will override the
+ * value of max_sectors. We should use sbp2_workarounds_table[] to cover any
+ * bridge chip which becomes known to need the 255 sectors limit.
*/
-static int sbp2_max_sectors = SBP2_MAX_SECTORS;
+static int sbp2_max_sectors;
module_param_named(max_sectors, sbp2_max_sectors, int, 0444);
MODULE_PARM_DESC(max_sectors, "Change max sectors per I/O supported "
- "(default = " __stringify(SBP2_MAX_SECTORS) ")");
+ "(default = 0 = use SCSI stack's default)");
/*
* Exclusive login to sbp2 device? In most cases, the sbp2 driver should
* are possible on OXFW911 and newer Oxsemi bridges.
*/
static int sbp2_exclusive_login = 1;
-module_param_named(exclusive_login, sbp2_exclusive_login, int, 0644);
+module_param_named(exclusive_login, sbp2_exclusive_login, bool, 0644);
MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device "
- "(default = 1)");
+ "(default = Y, use N for concurrent initiators)");
/*
* If any of the following workarounds is required for your device to work,
* Avoids access beyond actual disk limits on devices with an off-by-one bug.
* Don't use this with devices which don't have this bug.
*
+ * - delay inquiry
+ * Wait extra SBP2_INQUIRY_DELAY seconds after login before SCSI inquiry.
+ *
+ * - power condition
+ * Set the power condition field in the START STOP UNIT commands sent by
+ * sd_mod on suspend, resume, and shutdown (if manage_start_stop is on).
+ * Some disks need this to spin down or to resume properly.
+ *
* - override internal blacklist
* Instead of adding to the built-in blacklist, use only the workarounds
* specified in the module load parameter.
", 36 byte inquiry = " __stringify(SBP2_WORKAROUND_INQUIRY_36)
", skip mode page 8 = " __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
", fix capacity = " __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
+ ", delay inquiry = " __stringify(SBP2_WORKAROUND_DELAY_INQUIRY)
+ ", set power condition in start stop unit = "
+ __stringify(SBP2_WORKAROUND_POWER_CONDITION)
", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
", or a combination)");
+/*
+ * This influences the format of the sysfs attribute
+ * /sys/bus/scsi/devices/.../ieee1394_id.
+ *
+ * The default format is like in older kernels: %016Lx:%d:%d
+ * It contains the target's EUI-64, a number given to the logical unit by
+ * the ieee1394 driver's nodemgr (starting at 0), and the LUN.
+ *
+ * The long format is: %016Lx:%06x:%04x
+ * It contains the target's EUI-64, the unit directory's directory_ID as per
+ * IEEE 1212 clause 7.7.19, and the LUN. This format comes closest to the
+ * format of SBP(-3) target port and logical unit identifier as per SAM (SCSI
+ * Architecture Model) rev.2 to 4 annex A. Therefore and because it is
+ * independent of the implementation of the ieee1394 nodemgr, the longer format
+ * is recommended for future use.
+ */
+static int sbp2_long_sysfs_ieee1394_id;
+module_param_named(long_ieee1394_id, sbp2_long_sysfs_ieee1394_id, bool, 0644);
+MODULE_PARM_DESC(long_ieee1394_id, "8+3+2 bytes format of ieee1394_id in sysfs "
+ "(default = backwards-compatible = N, SAM-conforming = Y)");
+
#define SBP2_INFO(fmt, args...) HPSB_INFO("sbp2: "fmt, ## args)
#define SBP2_ERR(fmt, args...) HPSB_ERR("sbp2: "fmt, ## args)
static const u8 sbp2_speedto_max_payload[] = { 0x7, 0x8, 0x9, 0xA, 0xB, 0xC };
+static DEFINE_RWLOCK(sbp2_hi_logical_units_lock);
+
static struct hpsb_highlevel sbp2_highlevel = {
.name = SBP2_DEVICE_NAME,
.host_reset = sbp2_host_reset,
.firmware_revision = 0x002800,
.model_id = 0x001010,
.workarounds = SBP2_WORKAROUND_INQUIRY_36 |
- SBP2_WORKAROUND_MODE_SENSE_8,
+ SBP2_WORKAROUND_MODE_SENSE_8 |
+ SBP2_WORKAROUND_POWER_CONDITION,
+ },
+ /* DViCO Momobay FX-3A with TSB42AA9A bridge */ {
+ .firmware_revision = 0x002800,
+ .model_id = 0x000000,
+ .workarounds = SBP2_WORKAROUND_DELAY_INQUIRY |
+ SBP2_WORKAROUND_POWER_CONDITION,
},
/* Initio bridges, actually only needed for some older ones */ {
.firmware_revision = 0x000200,
.model_id = SBP2_ROM_VALUE_WILDCARD,
.workarounds = SBP2_WORKAROUND_INQUIRY_36,
},
+ /* PL-3507 bridge with Prolific firmware */ {
+ .firmware_revision = 0x012800,
+ .model_id = SBP2_ROM_VALUE_WILDCARD,
+ .workarounds = SBP2_WORKAROUND_POWER_CONDITION,
+ },
/* Symbios bridge */ {
.firmware_revision = 0xa0b800,
.model_id = SBP2_ROM_VALUE_WILDCARD,
.workarounds = SBP2_WORKAROUND_128K_MAX_TRANS,
},
+ /* Datafab MD2-FW2 with Symbios/LSILogic SYM13FW500 bridge */ {
+ .firmware_revision = 0x002600,
+ .model_id = SBP2_ROM_VALUE_WILDCARD,
+ .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS,
+ },
/* iPod 4th generation */ {
.firmware_revision = 0x0a2700,
.model_id = 0x000021,
static int sbp2util_create_command_orb_pool(struct sbp2_lu *lu)
{
struct sbp2_fwhost_info *hi = lu->hi;
- int i;
- unsigned long flags, orbs;
struct sbp2_command_info *cmd;
+ int i, orbs = sbp2_serialize_io ? 2 : SBP2_MAX_CMDS;
- orbs = sbp2_serialize_io ? 2 : SBP2_MAX_CMDS;
-
- spin_lock_irqsave(&lu->cmd_orb_lock, flags);
for (i = 0; i < orbs; i++) {
- cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
- if (!cmd) {
- spin_unlock_irqrestore(&lu->cmd_orb_lock, flags);
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd)
return -ENOMEM;
- }
cmd->command_orb_dma = dma_map_single(hi->host->device.parent,
&cmd->command_orb,
sizeof(struct sbp2_command_orb),
cmd->sge_dma = dma_map_single(hi->host->device.parent,
&cmd->scatter_gather_element,
sizeof(cmd->scatter_gather_element),
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
INIT_LIST_HEAD(&cmd->list);
list_add_tail(&cmd->list, &lu->cmd_orb_completed);
}
- spin_unlock_irqrestore(&lu->cmd_orb_lock, flags);
return 0;
}
-static void sbp2util_remove_command_orb_pool(struct sbp2_lu *lu)
+static void sbp2util_remove_command_orb_pool(struct sbp2_lu *lu,
+ struct hpsb_host *host)
{
- struct hpsb_host *host = lu->hi->host;
struct list_head *lh, *next;
struct sbp2_command_info *cmd;
unsigned long flags;
DMA_TO_DEVICE);
dma_unmap_single(host->device.parent, cmd->sge_dma,
sizeof(cmd->scatter_gather_element),
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
kfree(cmd);
}
spin_unlock_irqrestore(&lu->cmd_orb_lock, flags);
cmd->Current_SCpnt = Current_SCpnt;
list_add_tail(&cmd->list, &lu->cmd_orb_inuse);
} else
- SBP2_ERR("%s: no orbs available", __FUNCTION__);
+ SBP2_ERR("%s: no orbs available", __func__);
spin_unlock_irqrestore(&lu->cmd_orb_lock, flags);
return cmd;
}
{
struct sbp2_lu *lu = ud->device.driver_data;
- if (sbp2_reconnect_device(lu)) {
- /* Reconnect has failed. Perhaps we didn't reconnect fast
- * enough. Try a regular login, but first log out just in
- * case of any weirdness. */
+ if (sbp2_reconnect_device(lu) != 0) {
+ /*
+ * Reconnect failed. If another bus reset happened,
+ * let nodemgr proceed and call sbp2_update again later
+ * (or sbp2_remove if this node went away).
+ */
+ if (!hpsb_node_entry_valid(lu->ne))
+ return 0;
+ /*
+ * Or the target rejected the reconnect because we weren't
+ * fast enough. Try a regular login, but first log out
+ * just in case of any weirdness.
+ */
sbp2_logout_device(lu);
- if (sbp2_login_device(lu)) {
- /* Login failed too, just fail, and the backend
- * will call our sbp2_remove for us */
+ if (sbp2_login_device(lu) != 0) {
+ if (!hpsb_node_entry_valid(lu->ne))
+ return 0;
+
+ /* Maybe another initiator won the login. */
SBP2_ERR("Failed to reconnect to sbp2 device!");
return -EBUSY;
}
struct sbp2_fwhost_info *hi;
struct Scsi_Host *shost = NULL;
struct sbp2_lu *lu = NULL;
+ unsigned long flags;
lu = kzalloc(sizeof(*lu), GFP_KERNEL);
if (!lu) {
lu->hi = hi;
+ write_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_add_tail(&lu->lu_list, &hi->logical_units);
+ write_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
/* Register the status FIFO address range. We could use the same FIFO
* for targets at different nodes. However we need different FIFOs per
{
struct sbp2_fwhost_info *hi;
struct sbp2_lu *lu;
+ unsigned long flags;
hi = hpsb_get_hostinfo(&sbp2_highlevel, host);
if (!hi)
return;
+
+ read_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_for_each_entry(lu, &hi->logical_units, lu_list)
if (likely(atomic_read(&lu->state) !=
SBP2LU_STATE_IN_SHUTDOWN)) {
atomic_set(&lu->state, SBP2LU_STATE_IN_RESET);
scsi_block_requests(lu->shost);
}
+ read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
}
static int sbp2_start_device(struct sbp2_lu *lu)
if (!lu->login_orb)
goto alloc_fail;
- if (sbp2util_create_command_orb_pool(lu)) {
- SBP2_ERR("sbp2util_create_command_orb_pool failed!");
- sbp2_remove_device(lu);
- return -ENOMEM;
- }
+ if (sbp2util_create_command_orb_pool(lu))
+ goto alloc_fail;
/* Wait a second before trying to log in. Previously logged in
* initiators need a chance to reconnect. */
sbp2_agent_reset(lu, 1);
sbp2_max_speed_and_size(lu);
+ if (lu->workarounds & SBP2_WORKAROUND_DELAY_INQUIRY)
+ ssleep(SBP2_INQUIRY_DELAY);
+
error = scsi_add_device(lu->shost, 0, lu->ud->id, 0);
if (error) {
SBP2_ERR("scsi_add_device failed");
static void sbp2_remove_device(struct sbp2_lu *lu)
{
struct sbp2_fwhost_info *hi;
+ unsigned long flags;
if (!lu)
return;
-
hi = lu->hi;
+ if (!hi)
+ goto no_hi;
if (lu->shost) {
scsi_remove_host(lu->shost);
scsi_host_put(lu->shost);
}
flush_scheduled_work();
- sbp2util_remove_command_orb_pool(lu);
+ sbp2util_remove_command_orb_pool(lu, hi->host);
+ write_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_del(&lu->lu_list);
+ write_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
if (lu->login_response)
dma_free_coherent(hi->host->device.parent,
lu->ud->device.driver_data = NULL;
- if (hi)
- module_put(hi->host->driver->owner);
-
+ module_put(hi->host->driver->owner);
+no_hi:
kfree(lu);
}
data = cpu_to_be32(SBP2_BUSY_TIMEOUT_VALUE);
if (hpsb_node_write(lu->ne, SBP2_BUSY_TIMEOUT_ADDRESS, &data, 4))
- SBP2_ERR("%s error", __FUNCTION__);
+ SBP2_ERR("%s error", __func__);
return 0;
}
struct sbp2_fwhost_info *hi,
struct sbp2_command_info *cmd,
unsigned int scsi_use_sg,
- struct scatterlist *sgpnt,
+ struct scatterlist *sg,
u32 orb_direction,
enum dma_data_direction dma_dir)
{
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)) {
+ if (scsi_use_sg == 1 && sg->length <= SBP2_MAX_SG_ELEMENT_LENGTH) {
- cmd->dma_size = sgpnt[0].length;
+ cmd->dma_size = sg->length;
cmd->dma_type = CMD_DMA_PAGE;
cmd->cmd_dma = dma_map_page(hi->host->device.parent,
- sgpnt[0].page, sgpnt[0].offset,
+ sg_page(sg), sg->offset,
cmd->dma_size, cmd->dma_dir);
orb->data_descriptor_lo = cmd->cmd_dma;
&cmd->scatter_gather_element[0];
u32 sg_count, sg_len;
dma_addr_t sg_addr;
- int i, count = dma_map_sg(hi->host->device.parent, sgpnt,
+ int i, count = dma_map_sg(hi->host->device.parent, sg,
scsi_use_sg, dma_dir);
cmd->dma_size = scsi_use_sg;
- cmd->sge_buffer = sgpnt;
+ cmd->sge_buffer = sg;
/* use page tables (s/g) */
orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
/* 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);
+ for (i = 0, sg_count = 0; i < count; i++, sg = sg_next(sg)) {
+ sg_len = sg_dma_len(sg);
+ sg_addr = sg_dma_address(sg);
while (sg_len) {
sg_element[sg_count].segment_base_lo = sg_addr;
if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
}
}
-static void sbp2_prep_command_orb_no_sg(struct sbp2_command_orb *orb,
- struct sbp2_fwhost_info *hi,
- struct sbp2_command_info *cmd,
- struct scatterlist *sgpnt,
- u32 orb_direction,
- unsigned int scsi_request_bufflen,
- void *scsi_request_buffer,
- enum dma_data_direction dma_dir)
-{
- cmd->dma_dir = dma_dir;
- cmd->dma_size = scsi_request_bufflen;
- cmd->dma_type = CMD_DMA_SINGLE;
- cmd->cmd_dma = dma_map_single(hi->host->device.parent,
- scsi_request_buffer,
- cmd->dma_size, cmd->dma_dir);
- orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- orb->misc |= ORB_SET_DIRECTION(orb_direction);
-
- /* 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 = cmd->cmd_dma;
- orb->misc |= ORB_SET_DATA_SIZE(scsi_request_bufflen);
-
- } else {
- /* The buffer is too large. Turn this into page tables. */
-
- struct sbp2_unrestricted_page_table *sg_element =
- &cmd->scatter_gather_element[0];
- u32 sg_count, sg_len;
- dma_addr_t sg_addr;
-
- orb->data_descriptor_lo = cmd->sge_dma;
- orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
-
- /* fill out our SBP-2 page tables; split up the large buffer */
- sg_count = 0;
- sg_len = scsi_request_bufflen;
- sg_addr = cmd->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++;
- }
-
- orb->misc |= ORB_SET_DATA_SIZE(sg_count);
-
- sbp2util_cpu_to_be32_buffer(sg_element,
- (sizeof(struct sbp2_unrestricted_page_table)) *
- sg_count);
- }
-}
-
static void sbp2_create_command_orb(struct sbp2_lu *lu,
struct sbp2_command_info *cmd,
- unchar *scsi_cmd,
- unsigned int scsi_use_sg,
- unsigned int scsi_request_bufflen,
- void *scsi_request_buffer,
- enum dma_data_direction dma_dir)
+ struct scsi_cmnd *SCpnt)
{
struct sbp2_fwhost_info *hi = lu->hi;
- struct scatterlist *sgpnt = (struct scatterlist *)scsi_request_buffer;
struct sbp2_command_orb *orb = &cmd->command_orb;
u32 orb_direction;
+ unsigned int scsi_request_bufflen = scsi_bufflen(SCpnt);
+ enum dma_data_direction dma_dir = SCpnt->sc_data_direction;
/*
* Set-up our command ORB.
orb->data_descriptor_hi = 0x0;
orb->data_descriptor_lo = 0x0;
orb->misc |= ORB_SET_DIRECTION(1);
- } else if (scsi_use_sg)
- sbp2_prep_command_orb_sg(orb, hi, cmd, scsi_use_sg, sgpnt,
+ } else
+ sbp2_prep_command_orb_sg(orb, hi, cmd, scsi_sg_count(SCpnt),
+ scsi_sglist(SCpnt),
orb_direction, dma_dir);
- else
- sbp2_prep_command_orb_no_sg(orb, hi, cmd, sgpnt, orb_direction,
- scsi_request_bufflen,
- scsi_request_buffer, dma_dir);
sbp2util_cpu_to_be32_buffer(orb, sizeof(*orb));
- memset(orb->cdb, 0, 12);
- memcpy(orb->cdb, scsi_cmd, COMMAND_SIZE(*scsi_cmd));
+ memset(orb->cdb, 0, sizeof(orb->cdb));
+ memcpy(orb->cdb, SCpnt->cmnd, SCpnt->cmd_len);
}
static void sbp2_link_orb_command(struct sbp2_lu *lu,
DMA_TO_DEVICE);
dma_sync_single_for_device(hi->host->device.parent, cmd->sge_dma,
sizeof(cmd->scatter_gather_element),
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
/* check to see if there are any previous orbs to use */
spin_lock_irqsave(&lu->cmd_orb_lock, flags);
static int sbp2_send_command(struct sbp2_lu *lu, struct scsi_cmnd *SCpnt,
void (*done)(struct scsi_cmnd *))
{
- unchar *scsi_cmd = (unchar *)SCpnt->cmnd;
- unsigned int request_bufflen = SCpnt->request_bufflen;
struct sbp2_command_info *cmd;
cmd = sbp2util_allocate_command_orb(lu, SCpnt, done);
if (!cmd)
return -EIO;
- sbp2_create_command_orb(lu, cmd, scsi_cmd, SCpnt->use_sg,
- request_bufflen, SCpnt->request_buffer,
- SCpnt->sc_data_direction);
+ sbp2_create_command_orb(lu, cmd, SCpnt);
sbp2_link_orb_command(lu, cmd);
return 0;
}
/* Find the unit which wrote the status. */
+ read_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_for_each_entry(lu_tmp, &hi->logical_units, lu_list) {
if (lu_tmp->ne->nodeid == nodeid &&
lu_tmp->status_fifo_addr == addr) {
break;
}
}
+ read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
+
if (unlikely(!lu)) {
SBP2_ERR("lu is NULL - device is gone?");
return RCODE_ADDRESS_ERROR;
DMA_TO_DEVICE);
dma_sync_single_for_cpu(hi->host->device.parent, cmd->sge_dma,
sizeof(cmd->scatter_gather_element),
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
/* Grab SCSI command pointers and check status. */
/*
* FIXME: If the src field in the status is 1, the ORB DMA must
DMA_TO_DEVICE);
dma_sync_single_for_cpu(hi->host->device.parent, cmd->sge_dma,
sizeof(cmd->scatter_gather_element),
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
sbp2util_mark_command_completed(lu, cmd);
if (cmd->Current_SCpnt) {
cmd->Current_SCpnt->result = status << 16;
{
struct sbp2_lu *lu = (struct sbp2_lu *)sdev->host->hostdata[0];
+ if (sdev->lun != 0 || sdev->id != lu->ud->id || sdev->channel != 0)
+ return -ENODEV;
+
lu->sdev = sdev;
sdev->allow_restart = 1;
+ /* SBP-2 requires quadlet alignment of the data buffers. */
+ blk_queue_update_dma_alignment(sdev->request_queue, 4 - 1);
+
if (lu->workarounds & SBP2_WORKAROUND_INQUIRY_36)
sdev->inquiry_len = 36;
return 0;
{
struct sbp2_lu *lu = (struct sbp2_lu *)sdev->host->hostdata[0];
- blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
sdev->use_10_for_rw = 1;
+ if (sbp2_exclusive_login)
+ sdev->manage_start_stop = 1;
if (sdev->type == TYPE_ROM)
sdev->use_10_for_ms = 1;
if (sdev->type == TYPE_DISK &&
sdev->skip_ms_page_8 = 1;
if (lu->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
sdev->fix_capacity = 1;
+ if (lu->workarounds & SBP2_WORKAROUND_POWER_CONDITION)
+ sdev->start_stop_pwr_cond = 1;
+ if (lu->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS)
+ blk_queue_max_sectors(sdev->request_queue, 128 * 1024 / 512);
return 0;
}
dma_sync_single_for_cpu(hi->host->device.parent,
cmd->sge_dma,
sizeof(cmd->scatter_gather_element),
- DMA_BIDIRECTIONAL);
+ DMA_TO_DEVICE);
sbp2util_mark_command_completed(lu, cmd);
if (cmd->Current_SCpnt) {
cmd->Current_SCpnt->result = DID_ABORT << 16;
if (!(lu = (struct sbp2_lu *)sdev->host->hostdata[0]))
return 0;
- return sprintf(buf, "%016Lx:%d:%d\n", (unsigned long long)lu->ne->guid,
- lu->ud->id, ORB_SET_LUN(lu->lun));
+ if (sbp2_long_sysfs_ieee1394_id)
+ return sprintf(buf, "%016Lx:%06x:%04x\n",
+ (unsigned long long)lu->ne->guid,
+ lu->ud->directory_id, ORB_SET_LUN(lu->lun));
+ else
+ return sprintf(buf, "%016Lx:%d:%d\n",
+ (unsigned long long)lu->ne->guid,
+ lu->ud->id, ORB_SET_LUN(lu->lun));
}
MODULE_AUTHOR("Ben Collins <bcollins@debian.org>");
sbp2_shost_template.cmd_per_lun = 1;
}
- if (sbp2_default_workarounds & SBP2_WORKAROUND_128K_MAX_TRANS &&
- (sbp2_max_sectors * 512) > (128 * 1024))
- sbp2_max_sectors = 128 * 1024 / 512;
sbp2_shost_template.max_sectors = sbp2_max_sectors;
hpsb_register_highlevel(&sbp2_highlevel);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff