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Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6

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This commit is contained in:
Linus Torvalds
2005-09-12 20:02:18 -07:00
parent 9401c705f2 70c83e1105
commit 35d91f75c2
22 changed files with 1648 additions and 146 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/block/scsi_ioctl.c
+1
View File
@@ -123,6 +123,7 @@ static int verify_command(struct file *file, unsigned char *cmd)
safe_for_read(READ_12),
safe_for_read(READ_16),
safe_for_read(READ_BUFFER),
safe_for_read(READ_DEFECT_DATA),
safe_for_read(READ_LONG),
safe_for_read(INQUIRY),
safe_for_read(MODE_SENSE),
drivers/ieee1394/sbp2.c
+4 -4
View File
@@ -790,7 +790,7 @@ static void sbp2_host_reset(struct hpsb_host *host)
static int sbp2_start_device(struct scsi_id_instance_data *scsi_id)
{
struct sbp2scsi_host_info *hi = scsi_id->hi;
struct scsi_device *sdev;
int error;
SBP2_DEBUG("sbp2_start_device");
@@ -939,10 +939,10 @@ alloc_fail:
sbp2_max_speed_and_size(scsi_id);
/* Add this device to the scsi layer now */
sdev = scsi_add_device(scsi_id->scsi_host, 0, scsi_id->ud->id, 0);
if (IS_ERR(sdev)) {
error = scsi_add_device(scsi_id->scsi_host, 0, scsi_id->ud->id, 0);
if (error) {
SBP2_ERR("scsi_add_device failed");
return PTR_ERR(sdev);
return error;
}
return 0;
drivers/scsi/3w-9xxx.c
+24 -6
View File
@@ -59,6 +59,7 @@
Fix 'handled=1' ISR usage, remove bogus IRQ check.
Remove un-needed eh_abort handler.
Add support for embedded firmware error strings.
2.26.02.003 - Correctly handle single sgl's with use_sg=1.
*/
#include <linux/module.h>
@@ -81,7 +82,7 @@
#include "3w-9xxx.h"
/* Globals */
#define TW_DRIVER_VERSION "2.26.02.002"
#define TW_DRIVER_VERSION "2.26.02.003"
static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
static unsigned int twa_device_extension_count;
static int twa_major = -1;
@@ -1805,6 +1806,8 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
if (tw_dev->srb[request_id]->request_bufflen < TW_MIN_SGL_LENGTH) {
command_packet->sg_list[0].address = tw_dev->generic_buffer_phys[request_id];
command_packet->sg_list[0].length = TW_MIN_SGL_LENGTH;
if (tw_dev->srb[request_id]->sc_data_direction == DMA_TO_DEVICE || tw_dev->srb[request_id]->sc_data_direction == DMA_BIDIRECTIONAL)
memcpy(tw_dev->generic_buffer_virt[request_id], tw_dev->srb[request_id]->request_buffer, tw_dev->srb[request_id]->request_bufflen);
} else {
buffaddr = twa_map_scsi_single_data(tw_dev, request_id);
if (buffaddr == 0)
@@ -1823,6 +1826,12 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
if (tw_dev->srb[request_id]->use_sg > 0) {
if ((tw_dev->srb[request_id]->use_sg == 1) && (tw_dev->srb[request_id]->request_bufflen < TW_MIN_SGL_LENGTH)) {
if (tw_dev->srb[request_id]->sc_data_direction == DMA_TO_DEVICE || tw_dev->srb[request_id]->sc_data_direction == DMA_BIDIRECTIONAL) {
struct scatterlist *sg = (struct scatterlist *)tw_dev->srb[request_id]->request_buffer;
char *buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
memcpy(tw_dev->generic_buffer_virt[request_id], buf, sg->length);
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
command_packet->sg_list[0].address = tw_dev->generic_buffer_phys[request_id];
command_packet->sg_list[0].length = TW_MIN_SGL_LENGTH;
} else {
@@ -1888,11 +1897,20 @@ out:
/* This function completes an execute scsi operation */
static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int request_id)
{
/* Copy the response if too small */
if ((tw_dev->srb[request_id]->request_buffer) && (tw_dev->srb[request_id]->request_bufflen < TW_MIN_SGL_LENGTH)) {
memcpy(tw_dev->srb[request_id]->request_buffer,
tw_dev->generic_buffer_virt[request_id],
tw_dev->srb[request_id]->request_bufflen);
if (tw_dev->srb[request_id]->request_bufflen < TW_MIN_SGL_LENGTH &&
(tw_dev->srb[request_id]->sc_data_direction == DMA_FROM_DEVICE ||
tw_dev->srb[request_id]->sc_data_direction == DMA_BIDIRECTIONAL)) {
if (tw_dev->srb[request_id]->use_sg == 0) {
memcpy(tw_dev->srb[request_id]->request_buffer,
tw_dev->generic_buffer_virt[request_id],
tw_dev->srb[request_id]->request_bufflen);
}
if (tw_dev->srb[request_id]->use_sg == 1) {
struct scatterlist *sg = (struct scatterlist *)tw_dev->srb[request_id]->request_buffer;
char *buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
memcpy(buf, tw_dev->generic_buffer_virt[request_id], sg->length);
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
}
} /* End twa_scsiop_execute_scsi_complete() */
drivers/scsi/Kconfig
+7
View File
@@ -235,6 +235,13 @@ config SCSI_ISCSI_ATTRS
each attached iSCSI device to sysfs, say Y.
Otherwise, say N.
config SCSI_SAS_ATTRS
tristate "SAS Transport Attributes"
depends on SCSI
help
If you wish to export transport-specific information about
each attached SAS device to sysfs, say Y.
endmenu
menu "SCSI low-level drivers"
drivers/scsi/Makefile
+1
View File
@@ -31,6 +31,7 @@ obj-$(CONFIG_RAID_ATTRS) += raid_class.o
obj-$(CONFIG_SCSI_SPI_ATTRS) += scsi_transport_spi.o
obj-$(CONFIG_SCSI_FC_ATTRS) += scsi_transport_fc.o
obj-$(CONFIG_SCSI_ISCSI_ATTRS) += scsi_transport_iscsi.o
obj-$(CONFIG_SCSI_SAS_ATTRS) += scsi_transport_sas.o
obj-$(CONFIG_SCSI_AMIGA7XX) += amiga7xx.o 53c7xx.o
obj-$(CONFIG_A3000_SCSI) += a3000.o wd33c93.o
drivers/scsi/lpfc/lpfc_attr.c
+10 -12
View File
@@ -966,21 +966,21 @@ static void
lpfc_get_host_fabric_name (struct Scsi_Host *shost)
{
struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
u64 nodename;
u64 node_name;
spin_lock_irq(shost->host_lock);
if ((phba->fc_flag & FC_FABRIC) ||
((phba->fc_topology == TOPOLOGY_LOOP) &&
(phba->fc_flag & FC_PUBLIC_LOOP)))
memcpy(&nodename, &phba->fc_fabparam.nodeName, sizeof(u64));
node_name = wwn_to_u64(phba->fc_fabparam.nodeName.wwn);
else
/* fabric is local port if there is no F/FL_Port */
memcpy(&nodename, &phba->fc_nodename, sizeof(u64));
node_name = wwn_to_u64(phba->fc_nodename.wwn);
spin_unlock_irq(shost->host_lock);
fc_host_fabric_name(shost) = be64_to_cpu(nodename);
fc_host_fabric_name(shost) = node_name;
}
@@ -1103,21 +1103,20 @@ lpfc_get_starget_node_name(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
uint64_t node_name = 0;
u64 node_name = 0;
struct lpfc_nodelist *ndlp = NULL;
spin_lock_irq(shost->host_lock);
/* Search the mapped list for this target ID */
list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
if (starget->id == ndlp->nlp_sid) {
memcpy(&node_name, &ndlp->nlp_nodename,
sizeof(struct lpfc_name));
node_name = wwn_to_u64(ndlp->nlp_nodename.wwn);
break;
}
}
spin_unlock_irq(shost->host_lock);
fc_starget_node_name(starget) = be64_to_cpu(node_name);
fc_starget_node_name(starget) = node_name;
}
static void
@@ -1125,21 +1124,20 @@ lpfc_get_starget_port_name(struct scsi_target *starget)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
uint64_t port_name = 0;
u64 port_name = 0;
struct lpfc_nodelist *ndlp = NULL;
spin_lock_irq(shost->host_lock);
/* Search the mapped list for this target ID */
list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
if (starget->id == ndlp->nlp_sid) {
memcpy(&port_name, &ndlp->nlp_portname,
sizeof(struct lpfc_name));
port_name = wwn_to_u64(ndlp->nlp_portname.wwn);
break;
}
}
spin_unlock_irq(shost->host_lock);
fc_starget_port_name(starget) = be64_to_cpu(port_name);
fc_starget_port_name(starget) = port_name;
}
static void
drivers/scsi/lpfc/lpfc_hbadisc.c
+2 -5
View File
@@ -1017,13 +1017,10 @@ lpfc_register_remote_port(struct lpfc_hba * phba,
struct fc_rport *rport;
struct lpfc_rport_data *rdata;
struct fc_rport_identifiers rport_ids;
uint64_t wwn;
/* Remote port has reappeared. Re-register w/ FC transport */
memcpy(&wwn, &ndlp->nlp_nodename, sizeof(uint64_t));
rport_ids.node_name = be64_to_cpu(wwn);
memcpy(&wwn, &ndlp->nlp_portname, sizeof(uint64_t));
rport_ids.port_name = be64_to_cpu(wwn);
rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.wwn);
rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.wwn);
rport_ids.port_id = ndlp->nlp_DID;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
if (ndlp->nlp_type & NLP_FCP_TARGET)
drivers/scsi/lpfc/lpfc_hw.h
+11 -6
View File
@@ -262,12 +262,14 @@ struct lpfc_sli_ct_request {
#define FF_FRAME_SIZE 2048
struct lpfc_name {
union {
struct {
#ifdef __BIG_ENDIAN_BITFIELD
uint8_t nameType:4; /* FC Word 0, bit 28:31 */
uint8_t IEEEextMsn:4; /* FC Word 0, bit 24:27, bit 8:11 of IEEE ext */
uint8_t nameType:4; /* FC Word 0, bit 28:31 */
uint8_t IEEEextMsn:4; /* FC Word 0, bit 24:27, bit 8:11 of IEEE ext */
#else /* __LITTLE_ENDIAN_BITFIELD */
uint8_t IEEEextMsn:4; /* FC Word 0, bit 24:27, bit 8:11 of IEEE ext */
uint8_t nameType:4; /* FC Word 0, bit 28:31 */
uint8_t IEEEextMsn:4; /* FC Word 0, bit 24:27, bit 8:11 of IEEE ext */
uint8_t nameType:4; /* FC Word 0, bit 28:31 */
#endif
#define NAME_IEEE 0x1 /* IEEE name - nameType */
@@ -276,8 +278,11 @@ struct lpfc_name {
#define NAME_IP_TYPE 0x4 /* IP address */
#define NAME_CCITT_TYPE 0xC
#define NAME_CCITT_GR_TYPE 0xE
uint8_t IEEEextLsb; /* FC Word 0, bit 16:23, IEEE extended Lsb */
uint8_t IEEE[6]; /* FC IEEE address */
uint8_t IEEEextLsb; /* FC Word 0, bit 16:23, IEEE extended Lsb */
uint8_t IEEE[6]; /* FC IEEE address */
};
uint8_t wwn[8];
};
};
struct csp {
drivers/scsi/lpfc/lpfc_init.c
+2 -5
View File
@@ -1333,7 +1333,6 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
unsigned long bar0map_len, bar2map_len;
int error = -ENODEV, retval;
int i;
u64 wwname;
if (pci_enable_device(pdev))
goto out;
@@ -1524,10 +1523,8 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
* Must done after lpfc_sli_hba_setup()
*/
memcpy(&wwname, &phba->fc_nodename, sizeof(u64));
fc_host_node_name(host) = be64_to_cpu(wwname);
memcpy(&wwname, &phba->fc_portname, sizeof(u64));
fc_host_port_name(host) = be64_to_cpu(wwname);
fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.wwn);
fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.wwn);
fc_host_supported_classes(host) = FC_COS_CLASS3;
memset(fc_host_supported_fc4s(host), 0,
drivers/scsi/qla2xxx/qla_attr.c
+8 -10
View File
@@ -360,16 +360,16 @@ qla2x00_get_starget_node_name(struct scsi_target *starget)
struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
scsi_qla_host_t *ha = to_qla_host(host);
fc_port_t *fcport;
uint64_t node_name = 0;
u64 node_name = 0;
list_for_each_entry(fcport, &ha->fcports, list) {
if (starget->id == fcport->os_target_id) {
node_name = *(uint64_t *)fcport->node_name;
node_name = wwn_to_u64(fcport->node_name);
break;
}
}
fc_starget_node_name(starget) = be64_to_cpu(node_name);
fc_starget_node_name(starget) = node_name;
}
static void
@@ -378,16 +378,16 @@ qla2x00_get_starget_port_name(struct scsi_target *starget)
struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
scsi_qla_host_t *ha = to_qla_host(host);
fc_port_t *fcport;
uint64_t port_name = 0;
u64 port_name = 0;
list_for_each_entry(fcport, &ha->fcports, list) {
if (starget->id == fcport->os_target_id) {
port_name = *(uint64_t *)fcport->port_name;
port_name = wwn_to_u64(fcport->port_name);
break;
}
}
fc_starget_port_name(starget) = be64_to_cpu(port_name);
fc_starget_port_name(starget) = port_name;
}
static void
@@ -460,9 +460,7 @@ struct fc_function_template qla2xxx_transport_functions = {
void
qla2x00_init_host_attr(scsi_qla_host_t *ha)
{
fc_host_node_name(ha->host) =
be64_to_cpu(*(uint64_t *)ha->init_cb->node_name);
fc_host_port_name(ha->host) =
be64_to_cpu(*(uint64_t *)ha->init_cb->port_name);
fc_host_node_name(ha->host) = wwn_to_u64(ha->init_cb->node_name);
fc_host_port_name(ha->host) = wwn_to_u64(ha->init_cb->port_name);
fc_host_supported_classes(ha->host) = FC_COS_CLASS3;
}
drivers/scsi/qla2xxx/qla_init.c
+2 -2
View File
@@ -2066,8 +2066,8 @@ qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
return;
}
rport_ids.node_name = be64_to_cpu(*(uint64_t *)fcport->node_name);
rport_ids.port_name = be64_to_cpu(*(uint64_t *)fcport->port_name);
rport_ids.node_name = wwn_to_u64(fcport->node_name);
rport_ids.port_name = wwn_to_u64(fcport->port_name);
rport_ids.port_id = fcport->d_id.b.domain << 16 |
fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
drivers/scsi/scsi_lib.c
+88 -50
View File
@@ -97,6 +97,30 @@ int scsi_insert_special_req(struct scsi_request *sreq, int at_head)
}
static void scsi_run_queue(struct request_queue *q);
static void scsi_release_buffers(struct scsi_cmnd *cmd);
/*
* Function: scsi_unprep_request()
*
* Purpose: Remove all preparation done for a request, including its
* associated scsi_cmnd, so that it can be requeued.
*
* Arguments: req - request to unprepare
*
* Lock status: Assumed that no locks are held upon entry.
*
* Returns: Nothing.
*/
static void scsi_unprep_request(struct request *req)
{
struct scsi_cmnd *cmd = req->special;
req->flags &= ~REQ_DONTPREP;
req->special = (req->flags & REQ_SPECIAL) ? cmd->sc_request : NULL;
scsi_release_buffers(cmd);
scsi_put_command(cmd);
}
/*
* Function: scsi_queue_insert()
@@ -116,12 +140,14 @@ static void scsi_run_queue(struct request_queue *q);
* commands.
* Notes: This could be called either from an interrupt context or a
* normal process context.
* Notes: Upon return, cmd is a stale pointer.
*/
int scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
{
struct Scsi_Host *host = cmd->device->host;
struct scsi_device *device = cmd->device;
struct request_queue *q = device->request_queue;
struct request *req = cmd->request;
unsigned long flags;
SCSI_LOG_MLQUEUE(1,
@@ -162,8 +188,9 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
* function. The SCSI request function detects the blocked condition
* and plugs the queue appropriately.
*/
scsi_unprep_request(req);
spin_lock_irqsave(q->queue_lock, flags);
blk_requeue_request(q, cmd->request);
blk_requeue_request(q, req);
spin_unlock_irqrestore(q->queue_lock, flags);
scsi_run_queue(q);
@@ -339,7 +366,7 @@ int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
int result;
if (sshdr) {
sense = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
sense = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_NOIO);
if (!sense)
return DRIVER_ERROR << 24;
memset(sense, 0, SCSI_SENSE_BUFFERSIZE);
@@ -552,15 +579,16 @@ static void scsi_run_queue(struct request_queue *q)
* I/O errors in the middle of the request, in which case
* we need to request the blocks that come after the bad
* sector.
* Notes: Upon return, cmd is a stale pointer.
*/
static void scsi_requeue_command(struct request_queue *q, struct scsi_cmnd *cmd)
{
struct request *req = cmd->request;
unsigned long flags;
cmd->request->flags &= ~REQ_DONTPREP;
scsi_unprep_request(req);
spin_lock_irqsave(q->queue_lock, flags);
blk_requeue_request(q, cmd->request);
blk_requeue_request(q, req);
spin_unlock_irqrestore(q->queue_lock, flags);
scsi_run_queue(q);
@@ -595,13 +623,14 @@ void scsi_run_host_queues(struct Scsi_Host *shost)
*
* Lock status: Assumed that lock is not held upon entry.
*
* Returns: cmd if requeue done or required, NULL otherwise
* Returns: cmd if requeue required, NULL otherwise.
*
* Notes: This is called for block device requests in order to
* mark some number of sectors as complete.
*
* We are guaranteeing that the request queue will be goosed
* at some point during this call.
* Notes: If cmd was requeued, upon return it will be a stale pointer.
*/
static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int uptodate,
int bytes, int requeue)
@@ -624,14 +653,15 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int uptodate,
if (!uptodate && blk_noretry_request(req))
end_that_request_chunk(req, 0, leftover);
else {
if (requeue)
if (requeue) {
/*
* Bleah. Leftovers again. Stick the
* leftovers in the front of the
* queue, and goose the queue again.
*/
scsi_requeue_command(q, cmd);
cmd = NULL;
}
return cmd;
}
}
@@ -857,15 +887,13 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
* requeueing right here - we will requeue down below
* when we handle the bad sectors.
*/
cmd = scsi_end_request(cmd, 1, good_bytes, result == 0);
/*
* If the command completed without error, then either finish off the
* rest of the command, or start a new one.
* If the command completed without error, then either
* finish off the rest of the command, or start a new one.
*/
if (result == 0 || cmd == NULL ) {
if (scsi_end_request(cmd, 1, good_bytes, result == 0) == NULL)
return;
}
}
/*
* Now, if we were good little boys and girls, Santa left us a request
@@ -880,7 +908,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
* and quietly refuse further access.
*/
cmd->device->changed = 1;
cmd = scsi_end_request(cmd, 0,
scsi_end_request(cmd, 0,
this_count, 1);
return;
} else {
@@ -914,7 +942,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
scsi_requeue_command(q, cmd);
result = 0;
} else {
cmd = scsi_end_request(cmd, 0, this_count, 1);
scsi_end_request(cmd, 0, this_count, 1);
return;
}
break;
@@ -931,7 +959,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
dev_printk(KERN_INFO,
&cmd->device->sdev_gendev,
"Device not ready.\n");
cmd = scsi_end_request(cmd, 0, this_count, 1);
scsi_end_request(cmd, 0, this_count, 1);
return;
case VOLUME_OVERFLOW:
if (!(req->flags & REQ_QUIET)) {
@@ -941,7 +969,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
__scsi_print_command(cmd->data_cmnd);
scsi_print_sense("", cmd);
}
cmd = scsi_end_request(cmd, 0, block_bytes, 1);
scsi_end_request(cmd, 0, block_bytes, 1);
return;
default:
break;
@@ -972,7 +1000,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
block_bytes = req->hard_cur_sectors << 9;
if (!block_bytes)
block_bytes = req->data_len;
cmd = scsi_end_request(cmd, 0, block_bytes, 1);
scsi_end_request(cmd, 0, block_bytes, 1);
}
}
EXPORT_SYMBOL(scsi_io_completion);
@@ -1118,7 +1146,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
if (unlikely(!scsi_device_online(sdev))) {
printk(KERN_ERR "scsi%d (%d:%d): rejecting I/O to offline device\n",
sdev->host->host_no, sdev->id, sdev->lun);
return BLKPREP_KILL;
goto kill;
}
if (unlikely(sdev->sdev_state != SDEV_RUNNING)) {
/* OK, we're not in a running state don't prep
@@ -1128,7 +1156,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
* at all allowed down */
printk(KERN_ERR "scsi%d (%d:%d): rejecting I/O to dead device\n",
sdev->host->host_no, sdev->id, sdev->lun);
return BLKPREP_KILL;
goto kill;
}
/* OK, we only allow special commands (i.e. not
* user initiated ones */
@@ -1160,11 +1188,11 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
if(unlikely(specials_only) && !(req->flags & REQ_SPECIAL)) {
if(specials_only == SDEV_QUIESCE ||
specials_only == SDEV_BLOCK)
return BLKPREP_DEFER;
goto defer;
printk(KERN_ERR "scsi%d (%d:%d): rejecting I/O to device being removed\n",
sdev->host->host_no, sdev->id, sdev->lun);
return BLKPREP_KILL;
goto kill;
}
@@ -1182,7 +1210,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
cmd->tag = req->tag;
} else {
blk_dump_rq_flags(req, "SCSI bad req");
return BLKPREP_KILL;
goto kill;
}
/* note the overloading of req->special. When the tag
@@ -1220,8 +1248,13 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
* required).
*/
ret = scsi_init_io(cmd);
if (ret) /* BLKPREP_KILL return also releases the command */
return ret;
switch(ret) {
case BLKPREP_KILL:
/* BLKPREP_KILL return also releases the command */
goto kill;
case BLKPREP_DEFER:
goto defer;
}
/*
* Initialize the actual SCSI command for this request.
@@ -1231,7 +1264,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
if (unlikely(!drv->init_command(cmd))) {
scsi_release_buffers(cmd);
scsi_put_command(cmd);
return BLKPREP_KILL;
goto kill;
}
} else {
memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd));
@@ -1262,6 +1295,9 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
if (sdev->device_busy == 0)
blk_plug_device(q);
return BLKPREP_DEFER;
kill:
req->errors = DID_NO_CONNECT << 16;
return BLKPREP_KILL;
}
/*
@@ -1336,19 +1372,24 @@ static inline int scsi_host_queue_ready(struct request_queue *q,
}
/*
* Kill requests for a dead device
* Kill a request for a dead device
*/
static void scsi_kill_requests(request_queue_t *q)
static void scsi_kill_request(struct request *req, request_queue_t *q)
{
struct request *req;
struct scsi_cmnd *cmd = req->special;
while ((req = elv_next_request(q)) != NULL) {
blkdev_dequeue_request(req);
req->flags |= REQ_QUIET;
while (end_that_request_first(req, 0, req->nr_sectors))
;
end_that_request_last(req);
blkdev_dequeue_request(req);
if (unlikely(cmd == NULL)) {
printk(KERN_CRIT "impossible request in %s.\n",
__FUNCTION__);
BUG();
}
scsi_init_cmd_errh(cmd);
cmd->result = DID_NO_CONNECT << 16;
atomic_inc(&cmd->device->iorequest_cnt);
__scsi_done(cmd);
}
/*
@@ -1371,7 +1412,8 @@ static void scsi_request_fn(struct request_queue *q)
if (!sdev) {
printk("scsi: killing requests for dead queue\n");
scsi_kill_requests(q);
while ((req = elv_next_request(q)) != NULL)
scsi_kill_request(req, q);
return;
}
@@ -1398,11 +1440,7 @@ static void scsi_request_fn(struct request_queue *q)
if (unlikely(!scsi_device_online(sdev))) {
printk(KERN_ERR "scsi%d (%d:%d): rejecting I/O to offline device\n",
sdev->host->host_no, sdev->id, sdev->lun);
blkdev_dequeue_request(req);
req->flags |= REQ_QUIET;
while (end_that_request_first(req, 0, req->nr_sectors))
;
end_that_request_last(req);
scsi_kill_request(req, q);
continue;
}
@@ -1415,6 +1453,14 @@ static void scsi_request_fn(struct request_queue *q)
sdev->device_busy++;
spin_unlock(q->queue_lock);
cmd = req->special;
if (unlikely(cmd == NULL)) {
printk(KERN_CRIT "impossible request in %s.\n"
"please mail a stack trace to "
"linux-scsi@vger.kernel.org",
__FUNCTION__);
BUG();
}
spin_lock(shost->host_lock);
if (!scsi_host_queue_ready(q, shost, sdev))
@@ -1433,15 +1479,6 @@ static void scsi_request_fn(struct request_queue *q)
*/
spin_unlock_irq(shost->host_lock);
cmd = req->special;
if (unlikely(cmd == NULL)) {
printk(KERN_CRIT "impossible request in %s.\n"
"please mail a stack trace to "
"linux-scsi@vger.kernel.org",
__FUNCTION__);
BUG();
}
/*
* Finally, initialize any error handling parameters, and set up
* the timers for timeouts.
@@ -1477,6 +1514,7 @@ static void scsi_request_fn(struct request_queue *q)
* cases (host limits or settings) should run the queue at some
* later time.
*/
scsi_unprep_request(req);
spin_lock_irq(q->queue_lock);
blk_requeue_request(q, req);
sdev->device_busy--;
drivers/scsi/scsi_priv.h
+1
View File
@@ -124,6 +124,7 @@ extern void scsi_sysfs_unregister(void);
extern void scsi_sysfs_device_initialize(struct scsi_device *);
extern int scsi_sysfs_target_initialize(struct scsi_device *);
extern struct scsi_transport_template blank_transport_template;
extern void __scsi_remove_device(struct scsi_device *);
extern struct bus_type scsi_bus_type;
drivers/scsi/scsi_scan.c
+59 -29
View File
@@ -870,8 +870,12 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget,
out_free_sdev:
if (res == SCSI_SCAN_LUN_PRESENT) {
if (sdevp) {
scsi_device_get(sdev);
*sdevp = sdev;
if (scsi_device_get(sdev) == 0) {
*sdevp = sdev;
} else {
__scsi_remove_device(sdev);
res = SCSI_SCAN_NO_RESPONSE;
}
}
} else {
if (sdev->host->hostt->slave_destroy)
@@ -1260,6 +1264,19 @@ struct scsi_device *__scsi_add_device(struct Scsi_Host *shost, uint channel,
}
EXPORT_SYMBOL(__scsi_add_device);
int scsi_add_device(struct Scsi_Host *host, uint channel,
uint target, uint lun)
{
struct scsi_device *sdev =
__scsi_add_device(host, channel, target, lun, NULL);
if (IS_ERR(sdev))
return PTR_ERR(sdev);
scsi_device_put(sdev);
return 0;
}
EXPORT_SYMBOL(scsi_add_device);
void scsi_rescan_device(struct device *dev)
{
struct scsi_driver *drv;
@@ -1276,27 +1293,8 @@ void scsi_rescan_device(struct device *dev)
}
EXPORT_SYMBOL(scsi_rescan_device);
/**
* scsi_scan_target - scan a target id, possibly including all LUNs on the
* target.
* @sdevsca: Scsi_Device handle for scanning
* @shost: host to scan
* @channel: channel to scan
* @id: target id to scan
*
* Description:
* Scan the target id on @shost, @channel, and @id. Scan at least LUN
* 0, and possibly all LUNs on the target id.
*
* Use the pre-allocated @sdevscan as a handle for the scanning. This
* function sets sdevscan->host, sdevscan->id and sdevscan->lun; the
* scanning functions modify sdevscan->lun.
*
* First try a REPORT LUN scan, if that does not scan the target, do a
* sequential scan of LUNs on the target id.
**/
void scsi_scan_target(struct device *parent, unsigned int channel,
unsigned int id, unsigned int lun, int rescan)
static void __scsi_scan_target(struct device *parent, unsigned int channel,
unsigned int id, unsigned int lun, int rescan)
{
struct Scsi_Host *shost = dev_to_shost(parent);
int bflags = 0;
@@ -1310,9 +1308,7 @@ void scsi_scan_target(struct device *parent, unsigned int channel,
*/
return;
starget = scsi_alloc_target(parent, channel, id);
if (!starget)
return;
@@ -1358,6 +1354,33 @@ void scsi_scan_target(struct device *parent, unsigned int channel,
put_device(&starget->dev);
}
/**
* scsi_scan_target - scan a target id, possibly including all LUNs on the
* target.
* @parent: host to scan
* @channel: channel to scan
* @id: target id to scan
* @lun: Specific LUN to scan or SCAN_WILD_CARD
* @rescan: passed to LUN scanning routines
*
* Description:
* Scan the target id on @parent, @channel, and @id. Scan at least LUN 0,
* and possibly all LUNs on the target id.
*
* First try a REPORT LUN scan, if that does not scan the target, do a
* sequential scan of LUNs on the target id.
**/
void scsi_scan_target(struct device *parent, unsigned int channel,
unsigned int id, unsigned int lun, int rescan)
{
struct Scsi_Host *shost = dev_to_shost(parent);
down(&shost->scan_mutex);
if (scsi_host_scan_allowed(shost))
__scsi_scan_target(parent, channel, id, lun, rescan);
up(&shost->scan_mutex);
}
EXPORT_SYMBOL(scsi_scan_target);
static void scsi_scan_channel(struct Scsi_Host *shost, unsigned int channel,
@@ -1383,10 +1406,12 @@ static void scsi_scan_channel(struct Scsi_Host *shost, unsigned int channel,
order_id = shost->max_id - id - 1;
else
order_id = id;
scsi_scan_target(&shost->shost_gendev, channel, order_id, lun, rescan);
__scsi_scan_target(&shost->shost_gendev, channel,
order_id, lun, rescan);
}
else
scsi_scan_target(&shost->shost_gendev, channel, id, lun, rescan);
__scsi_scan_target(&shost->shost_gendev, channel,
id, lun, rescan);
}
int scsi_scan_host_selected(struct Scsi_Host *shost, unsigned int channel,
@@ -1484,12 +1509,15 @@ void scsi_forget_host(struct Scsi_Host *shost)
*/
struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost)
{
struct scsi_device *sdev;
struct scsi_device *sdev = NULL;
struct scsi_target *starget;
down(&shost->scan_mutex);
if (!scsi_host_scan_allowed(shost))
goto out;
starget = scsi_alloc_target(&shost->shost_gendev, 0, shost->this_id);
if (!starget)
return NULL;
goto out;
sdev = scsi_alloc_sdev(starget, 0, NULL);
if (sdev) {
@@ -1497,6 +1525,8 @@ struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost)
sdev->borken = 0;
}
put_device(&starget->dev);
out:
up(&shost->scan_mutex);
return sdev;
}
EXPORT_SYMBOL(scsi_get_host_dev);
drivers/scsi/scsi_sysfs.c
+15 -13
View File
@@ -653,7 +653,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
error = attr_add(&sdev->sdev_gendev,
sdev->host->hostt->sdev_attrs[i]);
if (error) {
scsi_remove_device(sdev);
__scsi_remove_device(sdev);
goto out;
}
}
@@ -667,7 +667,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
scsi_sysfs_sdev_attrs[i]);
error = device_create_file(&sdev->sdev_gendev, attr);
if (error) {
scsi_remove_device(sdev);
__scsi_remove_device(sdev);
goto out;
}
}
@@ -687,17 +687,10 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
return error;
}
/**
* scsi_remove_device - unregister a device from the scsi bus
* @sdev: scsi_device to unregister
**/
void scsi_remove_device(struct scsi_device *sdev)
void __scsi_remove_device(struct scsi_device *sdev)
{
struct Scsi_Host *shost = sdev->host;
down(&shost->scan_mutex);
if (scsi_device_set_state(sdev, SDEV_CANCEL) != 0)
goto out;
return;
class_device_unregister(&sdev->sdev_classdev);
device_del(&sdev->sdev_gendev);
@@ -706,8 +699,17 @@ void scsi_remove_device(struct scsi_device *sdev)
sdev->host->hostt->slave_destroy(sdev);
transport_unregister_device(&sdev->sdev_gendev);
put_device(&sdev->sdev_gendev);
out:
up(&shost->scan_mutex);
}
/**
* scsi_remove_device - unregister a device from the scsi bus
* @sdev: scsi_device to unregister
**/
void scsi_remove_device(struct scsi_device *sdev)
{
down(&sdev->host->scan_mutex);
__scsi_remove_device(sdev);
up(&sdev->host->scan_mutex);
}
EXPORT_SYMBOL(scsi_remove_device);
drivers/scsi/scsi_transport_sas.c
+820
View File
File diff suppressed because it is too large Load Diff
drivers/scsi/sg.c
+2 -2
View File
@@ -61,7 +61,7 @@ static int sg_version_num = 30533; /* 2 digits for each component */
#ifdef CONFIG_SCSI_PROC_FS
#include <linux/proc_fs.h>
static char *sg_version_date = "20050901";
static char *sg_version_date = "20050908";
static int sg_proc_init(void);
static void sg_proc_cleanup(void);
@@ -1299,7 +1299,7 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
sg_rb_correct4mmap(rsv_schp, 1); /* do only once per fd lifetime */
sfp->mmap_called = 1;
}
vma->vm_flags |= (VM_RESERVED | VM_IO);
vma->vm_flags |= VM_RESERVED;
vma->vm_private_data = sfp;
vma->vm_ops = &sg_mmap_vm_ops;
return 0;