* Grep for inline FIXME comments below.
*/
+#include <linux/blkdev.h>
#include <linux/compiler.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
-#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
*/
static int sbp2_max_speed = IEEE1394_SPEED_MAX;
module_param_named(max_speed, sbp2_max_speed, int, 0644);
-MODULE_PARM_DESC(max_speed, "Force max speed "
- "(3 = 800Mb/s, 2 = 400Mb/s, 1 = 200Mb/s, 0 = 100Mb/s)");
+MODULE_PARM_DESC(max_speed, "Limit data transfer speed (5 <= 3200, "
+ "4 <= 1600, 3 <= 800, 2 <= 400, 1 <= 200, 0 = 100 Mb/s)");
/*
* Set serialize_io to 0 or N to use dynamically appended lists of command ORBs.
"(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
* 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)");
static int sbp2_max_speed_and_size(struct sbp2_lu *);
-static const u8 sbp2_speedto_max_payload[] = { 0x7, 0x8, 0x9, 0xA, 0xB, 0xC };
+static const u8 sbp2_speedto_max_payload[] = { 0x7, 0x8, 0x9, 0xa, 0xa, 0xa };
static DEFINE_RWLOCK(sbp2_hi_logical_units_lock);
.host_reset = sbp2_host_reset,
};
-static struct hpsb_address_ops sbp2_ops = {
+static const struct hpsb_address_ops sbp2_ops = {
.write = sbp2_handle_status_write
};
static int sbp2_handle_physdma_read(struct hpsb_host *, int, quadlet_t *, u64,
size_t, u16);
-static struct hpsb_address_ops sbp2_physdma_ops = {
+static const struct hpsb_address_ops sbp2_physdma_ops = {
.read = sbp2_handle_physdma_read,
.write = sbp2_handle_physdma_write,
};
/*
* Interface to driver core and IEEE 1394 core
*/
-static struct ieee1394_device_id sbp2_id_table[] = {
+static const struct ieee1394_device_id sbp2_id_table[] = {
{
.match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION,
.specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff,
.sdev_attrs = sbp2_sysfs_sdev_attrs,
};
-/* for match-all entries in sbp2_workarounds_table */
-#define SBP2_ROM_VALUE_WILDCARD 0x1000000
+#define SBP2_ROM_VALUE_WILDCARD ~0 /* match all */
+#define SBP2_ROM_VALUE_MISSING 0xff000000 /* not present in the unit dir. */
/*
* List of devices with known bugs.
*/
static const struct {
u32 firmware_revision;
- u32 model_id;
+ u32 model;
unsigned workarounds;
} sbp2_workarounds_table[] = {
/* DViCO Momobay CX-1 with TSB42AA9 bridge */ {
.firmware_revision = 0x002800,
- .model_id = 0x001010,
+ .model = 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 = 0x000000,
+ .workarounds = SBP2_WORKAROUND_POWER_CONDITION,
},
/* Initio bridges, actually only needed for some older ones */ {
.firmware_revision = 0x000200,
- .model_id = SBP2_ROM_VALUE_WILDCARD,
+ .model = SBP2_ROM_VALUE_WILDCARD,
.workarounds = SBP2_WORKAROUND_INQUIRY_36,
},
+ /* PL-3507 bridge with Prolific firmware */ {
+ .firmware_revision = 0x012800,
+ .model = SBP2_ROM_VALUE_WILDCARD,
+ .workarounds = SBP2_WORKAROUND_POWER_CONDITION,
+ },
/* Symbios bridge */ {
.firmware_revision = 0xa0b800,
- .model_id = SBP2_ROM_VALUE_WILDCARD,
+ .model = SBP2_ROM_VALUE_WILDCARD,
.workarounds = SBP2_WORKAROUND_128K_MAX_TRANS,
},
+ /* Datafab MD2-FW2 with Symbios/LSILogic SYM13FW500 bridge */ {
+ .firmware_revision = 0x002600,
+ .model = SBP2_ROM_VALUE_WILDCARD,
+ .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS,
+ },
+ /*
+ * iPod 2nd generation: needs 128k max transfer size workaround
+ * iPod 3rd generation: needs fix capacity workaround
+ */
+ {
+ .firmware_revision = 0x0a2700,
+ .model = 0x000000,
+ .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS |
+ SBP2_WORKAROUND_FIX_CAPACITY,
+ },
/* iPod 4th generation */ {
.firmware_revision = 0x0a2700,
- .model_id = 0x000021,
+ .model = 0x000021,
+ .workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
+ },
+ /* iPod mini */ {
+ .firmware_revision = 0x0a2700,
+ .model = 0x000022,
.workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
},
/* iPod mini */ {
.firmware_revision = 0x0a2700,
- .model_id = 0x000023,
+ .model = 0x000023,
.workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
},
/* iPod Photo */ {
.firmware_revision = 0x0a2700,
- .model_id = 0x00007e,
+ .model = 0x00007e,
.workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
}
};
static int sbp2util_create_command_orb_pool(struct sbp2_lu *lu)
{
- struct sbp2_fwhost_info *hi = lu->hi;
struct sbp2_command_info *cmd;
+ struct device *dmadev = lu->hi->host->device.parent;
int i, orbs = sbp2_serialize_io ? 2 : SBP2_MAX_CMDS;
for (i = 0; i < orbs; i++) {
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),
- DMA_TO_DEVICE);
- cmd->sge_dma = dma_map_single(hi->host->device.parent,
- &cmd->scatter_gather_element,
- sizeof(cmd->scatter_gather_element),
- DMA_TO_DEVICE);
+ goto failed_alloc;
+
+ cmd->command_orb_dma =
+ dma_map_single(dmadev, &cmd->command_orb,
+ sizeof(struct sbp2_command_orb),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dmadev, cmd->command_orb_dma))
+ goto failed_orb;
+
+ cmd->sge_dma =
+ dma_map_single(dmadev, &cmd->scatter_gather_element,
+ sizeof(cmd->scatter_gather_element),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dmadev, cmd->sge_dma))
+ goto failed_sge;
+
INIT_LIST_HEAD(&cmd->list);
list_add_tail(&cmd->list, &lu->cmd_orb_completed);
}
return 0;
+
+failed_sge:
+ dma_unmap_single(dmadev, cmd->command_orb_dma,
+ sizeof(struct sbp2_command_orb), DMA_TO_DEVICE);
+failed_orb:
+ kfree(cmd);
+failed_alloc:
+ return -ENOMEM;
}
static void sbp2util_remove_command_orb_pool(struct sbp2_lu *lu,
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;
}
static void sbp2util_mark_command_completed(struct sbp2_lu *lu,
struct sbp2_command_info *cmd)
{
- struct hpsb_host *host = lu->ud->ne->host;
-
- if (cmd->cmd_dma) {
- if (cmd->dma_type == CMD_DMA_SINGLE)
- dma_unmap_single(host->device.parent, cmd->cmd_dma,
- cmd->dma_size, cmd->dma_dir);
- else if (cmd->dma_type == CMD_DMA_PAGE)
- dma_unmap_page(host->device.parent, cmd->cmd_dma,
- cmd->dma_size, cmd->dma_dir);
- /* XXX: Check for CMD_DMA_NONE bug */
- cmd->dma_type = CMD_DMA_NONE;
- cmd->cmd_dma = 0;
- }
- if (cmd->sge_buffer) {
- dma_unmap_sg(host->device.parent, cmd->sge_buffer,
- cmd->dma_size, cmd->dma_dir);
- cmd->sge_buffer = NULL;
- }
+ if (scsi_sg_count(cmd->Current_SCpnt))
+ dma_unmap_sg(lu->ud->ne->host->device.parent,
+ scsi_sglist(cmd->Current_SCpnt),
+ scsi_sg_count(cmd->Current_SCpnt),
+ cmd->Current_SCpnt->sc_data_direction);
list_move_tail(&cmd->list, &lu->cmd_orb_completed);
}
struct scsi_device *sdev;
ud = container_of(dev, struct unit_directory, device);
- lu = ud->device.driver_data;
+ lu = dev_get_drvdata(&ud->device);
if (!lu)
return 0;
static int sbp2_update(struct unit_directory *ud)
{
- struct sbp2_lu *lu = ud->device.driver_data;
+ struct sbp2_lu *lu = dev_get_drvdata(&ud->device);
- 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;
}
atomic_set(&lu->state, SBP2LU_STATE_RUNNING);
INIT_WORK(&lu->protocol_work, NULL);
- ud->device.driver_data = lu;
+ dev_set_drvdata(&ud->device, lu);
hi = hpsb_get_hostinfo(&sbp2_highlevel, ud->ne->host);
if (!hi) {
#endif
}
+ if (dma_get_max_seg_size(hi->host->device.parent) > SBP2_MAX_SEG_SIZE)
+ BUG_ON(dma_set_max_seg_size(hi->host->device.parent,
+ SBP2_MAX_SEG_SIZE));
+
/* Prevent unloading of the 1394 host */
if (!try_module_get(hi->host->driver->owner)) {
SBP2_ERR("failed to get a reference on 1394 host driver");
}
shost->hostdata[0] = (unsigned long)lu;
+ shost->max_cmd_len = SBP2_MAX_CDB_SIZE;
if (!scsi_add_host(shost, &ud->device)) {
lu->shost = shost;
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);
+ if (atomic_cmpxchg(&lu->state,
+ SBP2LU_STATE_RUNNING, SBP2LU_STATE_IN_RESET)
+ == SBP2LU_STATE_RUNNING)
scsi_block_requests(lu->shost);
- }
+
read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
}
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");
hpsb_unregister_addrspace(&sbp2_highlevel, hi->host,
lu->status_fifo_addr);
- lu->ud->device.driver_data = NULL;
+ dev_set_drvdata(&lu->ud->device, NULL);
module_put(hi->host->driver->owner);
no_hi:
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 csr1212_keyval *kv;
struct csr1212_dentry *dentry;
u64 management_agent_addr;
- u32 unit_characteristics, firmware_revision;
+ u32 unit_characteristics, firmware_revision, model;
unsigned workarounds;
int i;
management_agent_addr = 0;
unit_characteristics = 0;
- firmware_revision = 0;
+ firmware_revision = SBP2_ROM_VALUE_MISSING;
+ model = ud->flags & UNIT_DIRECTORY_MODEL_ID ?
+ ud->model_id : SBP2_ROM_VALUE_MISSING;
csr1212_for_each_dir_entry(ud->ne->csr, kv, ud->ud_kv, dentry) {
switch (kv->key.id) {
sbp2_workarounds_table[i].firmware_revision !=
(firmware_revision & 0xffff00))
continue;
- if (sbp2_workarounds_table[i].model_id !=
+ if (sbp2_workarounds_table[i].model !=
SBP2_ROM_VALUE_WILDCARD &&
- sbp2_workarounds_table[i].model_id != ud->model_id)
+ sbp2_workarounds_table[i].model != model)
continue;
workarounds |= sbp2_workarounds_table[i].workarounds;
break;
"(firmware_revision 0x%06x, vendor_id 0x%06x,"
" model_id 0x%06x)",
NODE_BUS_ARGS(ud->ne->host, ud->ne->nodeid),
- workarounds, firmware_revision,
- ud->vendor_id ? ud->vendor_id : ud->ne->vendor_id,
- ud->model_id);
+ workarounds, firmware_revision, ud->vendor_id,
+ model);
/* We would need one SCSI host template for each target to adjust
* max_sectors on the fly, therefore warn only. */
return 0;
}
-static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
- struct sbp2_fwhost_info *hi,
- struct sbp2_command_info *cmd,
- unsigned int scsi_use_sg,
- struct scatterlist *sgpnt,
- u32 orb_direction,
- enum dma_data_direction dma_dir)
+static int sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
+ struct sbp2_fwhost_info *hi,
+ struct sbp2_command_info *cmd,
+ unsigned int sg_count,
+ struct scatterlist *sg,
+ u32 orb_direction,
+ enum dma_data_direction dma_dir)
{
- cmd->dma_dir = dma_dir;
+ struct device *dmadev = hi->host->device.parent;
+ struct sbp2_unrestricted_page_table *pt;
+ int i, n;
+
+ n = dma_map_sg(dmadev, sg, sg_count, dma_dir);
+ if (n == 0)
+ return -ENOMEM;
+
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)) {
-
- cmd->dma_size = sgpnt[0].length;
- cmd->dma_type = CMD_DMA_PAGE;
- cmd->cmd_dma = dma_map_page(hi->host->device.parent,
- sg_page(&sgpnt[0]), sgpnt[0].offset,
- cmd->dma_size, cmd->dma_dir);
-
- orb->data_descriptor_lo = cmd->cmd_dma;
- orb->misc |= ORB_SET_DATA_SIZE(cmd->dma_size);
-
+ if (n == 1) {
+ orb->misc |= ORB_SET_DATA_SIZE(sg_dma_len(sg));
+ orb->data_descriptor_lo = sg_dma_address(sg);
} else {
- struct sbp2_unrestricted_page_table *sg_element =
- &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,
- scsi_use_sg, dma_dir);
-
- cmd->dma_size = scsi_use_sg;
- cmd->sge_buffer = sgpnt;
-
- /* use page tables (s/g) */
- orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
- orb->data_descriptor_lo = cmd->sge_dma;
+ pt = &cmd->scatter_gather_element[0];
- /* 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++;
- }
+ dma_sync_single_for_cpu(dmadev, cmd->sge_dma,
+ sizeof(cmd->scatter_gather_element),
+ DMA_TO_DEVICE);
+
+ for_each_sg(sg, sg, n, i) {
+ pt[i].high = cpu_to_be32(sg_dma_len(sg) << 16);
+ pt[i].low = cpu_to_be32(sg_dma_address(sg));
}
- orb->misc |= ORB_SET_DATA_SIZE(sg_count);
+ orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1) |
+ ORB_SET_DATA_SIZE(n);
+ orb->data_descriptor_lo = cmd->sge_dma;
- sbp2util_cpu_to_be32_buffer(sg_element,
- (sizeof(struct sbp2_unrestricted_page_table)) *
- sg_count);
+ dma_sync_single_for_device(dmadev, cmd->sge_dma,
+ sizeof(cmd->scatter_gather_element),
+ DMA_TO_DEVICE);
}
+ return 0;
}
-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)
+static int sbp2_create_command_orb(struct sbp2_lu *lu,
+ struct sbp2_command_info *cmd,
+ struct scsi_cmnd *SCpnt)
{
- struct sbp2_fwhost_info *hi = lu->hi;
- struct scatterlist *sgpnt = (struct scatterlist *)scsi_request_buffer;
+ struct device *dmadev = lu->hi->host->device.parent;
struct sbp2_command_orb *orb = &cmd->command_orb;
+ unsigned int scsi_request_bufflen = scsi_bufflen(SCpnt);
+ enum dma_data_direction dma_dir = SCpnt->sc_data_direction;
u32 orb_direction;
+ int ret;
+ dma_sync_single_for_cpu(dmadev, cmd->command_orb_dma,
+ sizeof(struct sbp2_command_orb), DMA_TO_DEVICE);
/*
* Set-up our command ORB.
*
orb->data_descriptor_hi = 0x0;
orb->data_descriptor_lo = 0x0;
orb->misc |= ORB_SET_DIRECTION(1);
- } else
- sbp2_prep_command_orb_sg(orb, hi, cmd, scsi_use_sg, sgpnt,
- orb_direction, dma_dir);
-
+ ret = 0;
+ } else {
+ ret = sbp2_prep_command_orb_sg(orb, lu->hi, cmd,
+ scsi_sg_count(SCpnt),
+ scsi_sglist(SCpnt),
+ orb_direction, 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);
+
+ dma_sync_single_for_device(dmadev, cmd->command_orb_dma,
+ sizeof(struct sbp2_command_orb), DMA_TO_DEVICE);
+ return ret;
}
static void sbp2_link_orb_command(struct sbp2_lu *lu,
size_t length;
unsigned long flags;
- dma_sync_single_for_device(hi->host->device.parent,
- cmd->command_orb_dma,
- sizeof(struct sbp2_command_orb),
- DMA_TO_DEVICE);
- dma_sync_single_for_device(hi->host->device.parent, cmd->sge_dma,
- sizeof(cmd->scatter_gather_element),
- DMA_TO_DEVICE);
-
/* check to see if there are any previous orbs to use */
spin_lock_irqsave(&lu->cmd_orb_lock, flags);
last_orb = lu->last_orb;
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 = scsi_bufflen(SCpnt);
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, scsi_sg_count(SCpnt),
- request_bufflen, scsi_sglist(SCpnt),
- SCpnt->sc_data_direction);
- sbp2_link_orb_command(lu, cmd);
+ if (sbp2_create_command_orb(lu, cmd, SCpnt))
+ return -ENOMEM;
+ sbp2_link_orb_command(lu, cmd);
return 0;
}
else
cmd = sbp2util_find_command_for_orb(lu, sb->ORB_offset_lo);
if (cmd) {
- dma_sync_single_for_cpu(hi->host->device.parent,
- cmd->command_orb_dma,
- sizeof(struct sbp2_command_orb),
- DMA_TO_DEVICE);
- dma_sync_single_for_cpu(hi->host->device.parent, cmd->sge_dma,
- sizeof(cmd->scatter_gather_element),
- DMA_TO_DEVICE);
/* Grab SCSI command pointers and check status. */
/*
* FIXME: If the src field in the status is 1, the ORB DMA must
static void sbp2scsi_complete_all_commands(struct sbp2_lu *lu, u32 status)
{
- struct sbp2_fwhost_info *hi = lu->hi;
struct list_head *lh;
struct sbp2_command_info *cmd;
unsigned long flags;
while (!list_empty(&lu->cmd_orb_inuse)) {
lh = lu->cmd_orb_inuse.next;
cmd = list_entry(lh, struct sbp2_command_info, list);
- dma_sync_single_for_cpu(hi->host->device.parent,
- cmd->command_orb_dma,
- sizeof(struct sbp2_command_orb),
- DMA_TO_DEVICE);
- dma_sync_single_for_cpu(hi->host->device.parent, cmd->sge_dma,
- sizeof(cmd->scatter_gather_element),
- 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;
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_hw_sectors(sdev->request_queue, 128 * 1024 / 512);
+
+ blk_queue_max_segment_size(sdev->request_queue, SBP2_MAX_SEG_SIZE);
return 0;
}
static int sbp2scsi_abort(struct scsi_cmnd *SCpnt)
{
struct sbp2_lu *lu = (struct sbp2_lu *)SCpnt->device->host->hostdata[0];
- struct sbp2_fwhost_info *hi = lu->hi;
struct sbp2_command_info *cmd;
unsigned long flags;
spin_lock_irqsave(&lu->cmd_orb_lock, flags);
cmd = sbp2util_find_command_for_SCpnt(lu, SCpnt);
if (cmd) {
- dma_sync_single_for_cpu(hi->host->device.parent,
- cmd->command_orb_dma,
- sizeof(struct sbp2_command_orb),
- DMA_TO_DEVICE);
- dma_sync_single_for_cpu(hi->host->device.parent,
- cmd->sge_dma,
- sizeof(cmd->scatter_gather_element),
- DMA_TO_DEVICE);
sbp2util_mark_command_completed(lu, cmd);
if (cmd->Current_SCpnt) {
cmd->Current_SCpnt->result = DID_ABORT << 16;
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