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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (21 commits)
  [SCSI] Revert "[SCSI] aacraid: fib context lock for management ioctls"
  [SCSI] bsg: copy the cmd_type field to the subordinate request for bidi
  [SCSI] handle scsi_init_queue failure properly
  [SCSI] destroy scsi_bidi_sdb_cache in scsi_exit_queue
  [SCSI] scsi_debug: add XDWRITEREAD_10 support
  [SCSI] scsi_debug: add bidi data transfer support
  [SCSI] scsi_debug: add get_data_transfer_info helper function
  [SCSI] remove use_sg_chaining
  [SCSI] bidirectional: fix up for the new blk_end_request code
  [SCSI] bidirectional command support
  [SCSI] implement scsi_data_buffer
  [SCSI] tgt: use scsi_init_io instead of scsi_alloc_sgtable
  [SCSI] aic7xxx: fix warnings with CONFIG_PM disabled
  [SCSI] aic79xx: fix warnings with CONFIG_PM disabled
  [SCSI] aic7xxx: fix ahc_done check SCB_ACTIVE for tagged transactions
  [SCSI] sgiwd93: use cached memory access to make driver work on IP28
  [SCSI] zfcp: fix sense_buffer access bug
  [SCSI] ncr53c8xx: fix sense_buffer access bug
  [SCSI] aic79xx: fix sense_buffer access bug
  [SCSI] hptiop: fix sense_buffer access bug
  ...
This commit is contained in:
Linus Torvalds 2008-01-31 09:28:49 +11:00
commit 2419505acc
67 changed files with 494 additions and 408 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/ia64/hp/sim/simscsi.c
View File

@ -360,7 +360,6 @@ static struct scsi_host_template driver_template = {
.max_sectors = 1024,
.cmd_per_lun = SIMSCSI_REQ_QUEUE_LEN,
.use_clustering = DISABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static int __init

1
block/bsg.c
View File

@ -279,6 +279,7 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr)
goto out;
}
rq->next_rq = next_rq;
next_rq->cmd_type = rq->cmd_type;
dxferp = (void*)(unsigned long)hdr->din_xferp;
ret = blk_rq_map_user(q, next_rq, dxferp, hdr->din_xfer_len);

1
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -1571,7 +1571,6 @@ static struct scsi_host_template srp_template = {
.this_id = -1,
.cmd_per_lun = SRP_SQ_SIZE,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = srp_host_attrs
};

4
drivers/s390/scsi/zfcp_fsf.c
View File

@ -4224,10 +4224,10 @@ zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
ZFCP_LOG_TRACE("%i bytes sense data provided by FCP\n",
fcp_rsp_iu->fcp_sns_len);
memcpy(&scpnt->sense_buffer,
memcpy(scpnt->sense_buffer,
zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len);
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE,
(void *) &scpnt->sense_buffer, sns_len);
(void *)scpnt->sense_buffer, sns_len);
}
/* check for overrun */

1
drivers/scsi/3w-9xxx.c
View File

@ -1990,7 +1990,6 @@ static struct scsi_host_template driver_template = {
.max_sectors = TW_MAX_SECTORS,
.cmd_per_lun = TW_MAX_CMDS_PER_LUN,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = twa_host_attrs,
.emulated = 1
};

1
drivers/scsi/3w-xxxx.c
View File

@ -2261,7 +2261,6 @@ static struct scsi_host_template driver_template = {
.max_sectors = TW_MAX_SECTORS,
.cmd_per_lun = TW_MAX_CMDS_PER_LUN,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = tw_host_attrs,
.emulated = 1
};

1
drivers/scsi/BusLogic.c
View File

@ -3575,7 +3575,6 @@ static struct scsi_host_template Bus_Logic_template = {
.unchecked_isa_dma = 1,
.max_sectors = 128,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
/*

2
drivers/scsi/Kconfig
View File

@ -345,7 +345,7 @@ config ISCSI_TCP
config SGIWD93_SCSI
tristate "SGI WD93C93 SCSI Driver"
depends on SGI_IP22 && SCSI
depends on SGI_HAS_WD93 && SCSI
help
If you have a Western Digital WD93 SCSI controller on
an SGI MIPS system, say Y. Otherwise, say N.

1
drivers/scsi/NCR53c406a.c
View File

@ -1065,7 +1065,6 @@ static struct scsi_host_template driver_template =
.cmd_per_lun = 1 /* commands per lun */,
.unchecked_isa_dma = 1 /* unchecked_isa_dma */,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#include "scsi_module.c"

1
drivers/scsi/a100u2w.c
View File

@ -1071,7 +1071,6 @@ static struct scsi_host_template inia100_template = {
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static int __devinit inia100_probe_one(struct pci_dev *pdev,

29
drivers/scsi/aacraid/commctrl.c
View File

@ -243,7 +243,6 @@ static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
* Search the list of AdapterFibContext addresses on the adapter
* to be sure this is a valid address
*/
spin_lock_irqsave(&dev->fib_lock, flags);
entry = dev->fib_list.next;
fibctx = NULL;
@ -252,25 +251,24 @@ static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
/*
* Extract the AdapterFibContext from the Input parameters.
*/
if (fibctx->unique == f.fibctx) { /* We found a winner */
if (fibctx->unique == f.fibctx) { /* We found a winner */
break;
}
entry = entry->next;
fibctx = NULL;
}
if (!fibctx) {
spin_unlock_irqrestore(&dev->fib_lock, flags);
dprintk ((KERN_INFO "Fib Context not found\n"));
return -EINVAL;
}
if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) ||
(fibctx->size != sizeof(struct aac_fib_context))) {
spin_unlock_irqrestore(&dev->fib_lock, flags);
dprintk ((KERN_INFO "Fib Context corrupt?\n"));
return -EINVAL;
}
status = 0;
spin_lock_irqsave(&dev->fib_lock, flags);
/*
* If there are no fibs to send back, then either wait or return
* -EAGAIN
@ -328,9 +326,7 @@ return_fib:
int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
{
struct fib *fib;
unsigned long flags;
spin_lock_irqsave(&dev->fib_lock, flags);
/*
* First free any FIBs that have not been consumed.
*/
@ -353,7 +349,6 @@ int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
* Remove the Context from the AdapterFibContext List
*/
list_del(&fibctx->next);
spin_unlock_irqrestore(&dev->fib_lock, flags);
/*
* Invalidate context
*/
@ -419,8 +414,8 @@ static int close_getadapter_fib(struct aac_dev * dev, void __user *arg)
* @arg: ioctl arguments
*
* This routine returns the driver version.
* Under Linux, there have been no version incompatibilities, so this is
* simple!
* Under Linux, there have been no version incompatibilities, so this is
* simple!
*/
static int check_revision(struct aac_dev *dev, void __user *arg)
@ -468,7 +463,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
u32 data_dir;
void __user *sg_user[32];
void *sg_list[32];
u32 sg_indx = 0;
u32 sg_indx = 0;
u32 byte_count = 0;
u32 actual_fibsize64, actual_fibsize = 0;
int i;
@ -522,11 +517,11 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
// Fix up srb for endian and force some values
srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi); // Force this
srbcmd->channel = cpu_to_le32(user_srbcmd->channel);
srbcmd->channel = cpu_to_le32(user_srbcmd->channel);
srbcmd->id = cpu_to_le32(user_srbcmd->id);
srbcmd->lun = cpu_to_le32(user_srbcmd->lun);
srbcmd->timeout = cpu_to_le32(user_srbcmd->timeout);
srbcmd->flags = cpu_to_le32(flags);
srbcmd->lun = cpu_to_le32(user_srbcmd->lun);
srbcmd->timeout = cpu_to_le32(user_srbcmd->timeout);
srbcmd->flags = cpu_to_le32(flags);
srbcmd->retry_limit = 0; // Obsolete parameter
srbcmd->cdb_size = cpu_to_le32(user_srbcmd->cdb_size);
memcpy(srbcmd->cdb, user_srbcmd->cdb, sizeof(srbcmd->cdb));
@ -791,9 +786,9 @@ static int aac_get_pci_info(struct aac_dev* dev, void __user *arg)
pci_info.bus = dev->pdev->bus->number;
pci_info.slot = PCI_SLOT(dev->pdev->devfn);
if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
return -EFAULT;
if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
return -EFAULT;
}
return 0;
}

1
drivers/scsi/aacraid/linit.c
View File

@ -1032,7 +1032,6 @@ static struct scsi_host_template aac_driver_template = {
.cmd_per_lun = AAC_NUM_IO_FIB,
#endif
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.emulated = 1,
};

1
drivers/scsi/aha1740.c
View File

@ -563,7 +563,6 @@ static struct scsi_host_template aha1740_template = {
.sg_tablesize = AHA1740_SCATTER,
.cmd_per_lun = AHA1740_CMDLUN,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.eh_abort_handler = aha1740_eh_abort_handler,
};

5
drivers/scsi/aic7xxx/aic79xx.h
View File

@ -1340,8 +1340,10 @@ struct ahd_pci_identity *ahd_find_pci_device(ahd_dev_softc_t);
int ahd_pci_config(struct ahd_softc *,
struct ahd_pci_identity *);
int ahd_pci_test_register_access(struct ahd_softc *);
#ifdef CONFIG_PM
void ahd_pci_suspend(struct ahd_softc *);
void ahd_pci_resume(struct ahd_softc *);
#endif
/************************** SCB and SCB queue management **********************/
void ahd_qinfifo_requeue_tail(struct ahd_softc *ahd,
@ -1352,8 +1354,10 @@ struct ahd_softc *ahd_alloc(void *platform_arg, char *name);
int ahd_softc_init(struct ahd_softc *);
void ahd_controller_info(struct ahd_softc *ahd, char *buf);
int ahd_init(struct ahd_softc *ahd);
#ifdef CONFIG_PM
int ahd_suspend(struct ahd_softc *ahd);
void ahd_resume(struct ahd_softc *ahd);
#endif
int ahd_default_config(struct ahd_softc *ahd);
int ahd_parse_vpddata(struct ahd_softc *ahd,
struct vpd_config *vpd);
@ -1361,7 +1365,6 @@ int ahd_parse_cfgdata(struct ahd_softc *ahd,
struct seeprom_config *sc);
void ahd_intr_enable(struct ahd_softc *ahd, int enable);
void ahd_pause_and_flushwork(struct ahd_softc *ahd);
int ahd_suspend(struct ahd_softc *ahd);
void ahd_set_unit(struct ahd_softc *, int);
void ahd_set_name(struct ahd_softc *, char *);
struct scb *ahd_get_scb(struct ahd_softc *ahd, u_int col_idx);

2
drivers/scsi/aic7xxx/aic79xx_core.c
View File

@ -7175,6 +7175,7 @@ ahd_pause_and_flushwork(struct ahd_softc *ahd)
ahd->flags &= ~AHD_ALL_INTERRUPTS;
}
#ifdef CONFIG_PM
int
ahd_suspend(struct ahd_softc *ahd)
{
@ -7197,6 +7198,7 @@ ahd_resume(struct ahd_softc *ahd)
ahd_intr_enable(ahd, TRUE);
ahd_restart(ahd);
}
#endif
/************************** Busy Target Table *********************************/
/*

3
drivers/scsi/aic7xxx/aic79xx_osm.c
View File

@ -766,7 +766,6 @@ struct scsi_host_template aic79xx_driver_template = {
.max_sectors = 8192,
.cmd_per_lun = 2,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.slave_alloc = ahd_linux_slave_alloc,
.slave_configure = ahd_linux_slave_configure,
.target_alloc = ahd_linux_target_alloc,
@ -1922,7 +1921,7 @@ ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
struct scsi_sense_data *sense;
sense = (struct scsi_sense_data *)
&cmd->sense_buffer;
cmd->sense_buffer;
if (sense->extra_len >= 5 &&
(sense->add_sense_code == 0x47
|| sense->add_sense_code == 0x48))

33
drivers/scsi/aic7xxx/aic79xx_osm_pci.c
View File

@ -43,17 +43,6 @@
#include "aic79xx_inline.h"
#include "aic79xx_pci.h"
static int ahd_linux_pci_dev_probe(struct pci_dev *pdev,
const struct pci_device_id *ent);
static int ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd,
u_long *base, u_long *base2);
static int ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
u_long *bus_addr,
uint8_t __iomem **maddr);
static int ahd_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg);
static int ahd_linux_pci_dev_resume(struct pci_dev *pdev);
static void ahd_linux_pci_dev_remove(struct pci_dev *pdev);
/* Define the macro locally since it's different for different class of chips.
*/
#define ID(x) \
@ -85,17 +74,7 @@ static struct pci_device_id ahd_linux_pci_id_table[] = {
MODULE_DEVICE_TABLE(pci, ahd_linux_pci_id_table);
static struct pci_driver aic79xx_pci_driver = {
.name = "aic79xx",
.probe = ahd_linux_pci_dev_probe,
#ifdef CONFIG_PM
.suspend = ahd_linux_pci_dev_suspend,
.resume = ahd_linux_pci_dev_resume,
#endif
.remove = ahd_linux_pci_dev_remove,
.id_table = ahd_linux_pci_id_table
};
static int
ahd_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
@ -139,6 +118,7 @@ ahd_linux_pci_dev_resume(struct pci_dev *pdev)
return rc;
}
#endif
static void
ahd_linux_pci_dev_remove(struct pci_dev *pdev)
@ -245,6 +225,17 @@ ahd_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return (0);
}
static struct pci_driver aic79xx_pci_driver = {
.name = "aic79xx",
.probe = ahd_linux_pci_dev_probe,
#ifdef CONFIG_PM
.suspend = ahd_linux_pci_dev_suspend,
.resume = ahd_linux_pci_dev_resume,
#endif
.remove = ahd_linux_pci_dev_remove,
.id_table = ahd_linux_pci_id_table
};
int
ahd_linux_pci_init(void)
{

2
drivers/scsi/aic7xxx/aic79xx_pci.c
View File

@ -389,6 +389,7 @@ ahd_pci_config(struct ahd_softc *ahd, struct ahd_pci_identity *entry)
return error;
}
#ifdef CONFIG_PM
void
ahd_pci_suspend(struct ahd_softc *ahd)
{
@ -415,6 +416,7 @@ ahd_pci_resume(struct ahd_softc *ahd)
ahd_pci_write_config(ahd->dev_softc, CSIZE_LATTIME,
ahd->suspend_state.pci_state.csize_lattime, /*bytes*/1);
}
#endif
/*
* Perform some simple tests that should catch situations where

4
drivers/scsi/aic7xxx/aic7xxx.h
View File

@ -1143,7 +1143,9 @@ struct ahc_pci_identity *ahc_find_pci_device(ahc_dev_softc_t);
int ahc_pci_config(struct ahc_softc *,
struct ahc_pci_identity *);
int ahc_pci_test_register_access(struct ahc_softc *);
#ifdef CONFIG_PM
void ahc_pci_resume(struct ahc_softc *ahc);
#endif
/*************************** EISA/VL Front End ********************************/
struct aic7770_identity *aic7770_find_device(uint32_t);
@ -1170,8 +1172,10 @@ int ahc_chip_init(struct ahc_softc *ahc);
int ahc_init(struct ahc_softc *ahc);
void ahc_intr_enable(struct ahc_softc *ahc, int enable);
void ahc_pause_and_flushwork(struct ahc_softc *ahc);
#ifdef CONFIG_PM
int ahc_suspend(struct ahc_softc *ahc);
int ahc_resume(struct ahc_softc *ahc);
#endif
void ahc_set_unit(struct ahc_softc *, int);
void ahc_set_name(struct ahc_softc *, char *);
void ahc_alloc_scbs(struct ahc_softc *ahc);

3
drivers/scsi/aic7xxx/aic7xxx_core.c
View File

@ -5078,6 +5078,7 @@ ahc_pause_and_flushwork(struct ahc_softc *ahc)
ahc->flags &= ~AHC_ALL_INTERRUPTS;
}
#ifdef CONFIG_PM
int
ahc_suspend(struct ahc_softc *ahc)
{
@ -5113,7 +5114,7 @@ ahc_resume(struct ahc_softc *ahc)
ahc_restart(ahc);
return (0);
}
#endif
/************************** Busy Target Table *********************************/
/*
* Return the untagged transaction id for a given target/channel lun.

10
drivers/scsi/aic7xxx/aic7xxx_osm.c
View File

@ -747,7 +747,6 @@ struct scsi_host_template aic7xxx_driver_template = {
.max_sectors = 8192,
.cmd_per_lun = 2,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.slave_alloc = ahc_linux_slave_alloc,
.slave_configure = ahc_linux_slave_configure,
.target_alloc = ahc_linux_target_alloc,
@ -1658,9 +1657,12 @@ ahc_done(struct ahc_softc *ahc, struct scb *scb)
untagged_q = &(ahc->untagged_queues[target_offset]);
TAILQ_REMOVE(untagged_q, scb, links.tqe);
BUG_ON(!TAILQ_EMPTY(untagged_q));
}
if ((scb->flags & SCB_ACTIVE) == 0) {
} else if ((scb->flags & SCB_ACTIVE) == 0) {
/*
* Transactions aborted from the untagged queue may
* not have been dispatched to the controller, so
* only check the SCB_ACTIVE flag for tagged transactions.
*/
printf("SCB %d done'd twice\n", scb->hscb->tag);
ahc_dump_card_state(ahc);
panic("Stopping for safety");

33
drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
View File

@ -42,17 +42,6 @@
#include "aic7xxx_osm.h"
#include "aic7xxx_pci.h"
static int ahc_linux_pci_dev_probe(struct pci_dev *pdev,
const struct pci_device_id *ent);
static int ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc,
u_long *base);
static int ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
u_long *bus_addr,
uint8_t __iomem **maddr);
static int ahc_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg);
static int ahc_linux_pci_dev_resume(struct pci_dev *pdev);
static void ahc_linux_pci_dev_remove(struct pci_dev *pdev);
/* Define the macro locally since it's different for different class of chips.
*/
#define ID(x) ID_C(x, PCI_CLASS_STORAGE_SCSI)
@ -132,17 +121,7 @@ static struct pci_device_id ahc_linux_pci_id_table[] = {
MODULE_DEVICE_TABLE(pci, ahc_linux_pci_id_table);
static struct pci_driver aic7xxx_pci_driver = {
.name = "aic7xxx",
.probe = ahc_linux_pci_dev_probe,
#ifdef CONFIG_PM
.suspend = ahc_linux_pci_dev_suspend,
.resume = ahc_linux_pci_dev_resume,
#endif
.remove = ahc_linux_pci_dev_remove,
.id_table = ahc_linux_pci_id_table
};
static int
ahc_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
@ -182,6 +161,7 @@ ahc_linux_pci_dev_resume(struct pci_dev *pdev)
return (ahc_resume(ahc));
}
#endif
static void
ahc_linux_pci_dev_remove(struct pci_dev *pdev)
@ -289,6 +269,17 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return (0);
}
static struct pci_driver aic7xxx_pci_driver = {
.name = "aic7xxx",
.probe = ahc_linux_pci_dev_probe,
#ifdef CONFIG_PM
.suspend = ahc_linux_pci_dev_suspend,
.resume = ahc_linux_pci_dev_resume,
#endif
.remove = ahc_linux_pci_dev_remove,
.id_table = ahc_linux_pci_id_table
};
int
ahc_linux_pci_init(void)
{

2
drivers/scsi/aic7xxx/aic7xxx_pci.c
View File

@ -2020,6 +2020,7 @@ ahc_pci_chip_init(struct ahc_softc *ahc)
return (ahc_chip_init(ahc));
}
#ifdef CONFIG_PM
void
ahc_pci_resume(struct ahc_softc *ahc)
{
@ -2051,6 +2052,7 @@ ahc_pci_resume(struct ahc_softc *ahc)
ahc_release_seeprom(&sd);
}
}
#endif
static int
ahc_aic785X_setup(struct ahc_softc *ahc)

1
drivers/scsi/aic7xxx_old.c
View File

@ -11141,7 +11141,6 @@ static struct scsi_host_template driver_template = {
.max_sectors = 2048,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#include "scsi_module.c"

1
drivers/scsi/arcmsr/arcmsr_hba.c
View File

@ -122,7 +122,6 @@ static struct scsi_host_template arcmsr_scsi_host_template = {
.max_sectors = ARCMSR_MAX_XFER_SECTORS,
.cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = arcmsr_host_attrs,
};
#ifdef CONFIG_SCSI_ARCMSR_AER

1
drivers/scsi/dc395x.c
View File

@ -4763,7 +4763,6 @@ static struct scsi_host_template dc395x_driver_template = {
.eh_bus_reset_handler = dc395x_eh_bus_reset,
.unchecked_isa_dma = 0,
.use_clustering = DISABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};

1
drivers/scsi/dpt_i2o.c
View File

@ -3340,7 +3340,6 @@ static struct scsi_host_template driver_template = {
.this_id = 7,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#include "scsi_module.c"
MODULE_LICENSE("GPL");

1
drivers/scsi/eata.c
View File

@ -524,7 +524,6 @@ static struct scsi_host_template driver_template = {
.this_id = 7,
.unchecked_isa_dma = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)

1
drivers/scsi/hosts.c
View File

@ -342,7 +342,6 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
shost->use_clustering = sht->use_clustering;
shost->ordered_tag = sht->ordered_tag;
shost->active_mode = sht->supported_mode;
shost->use_sg_chaining = sht->use_sg_chaining;
if (sht->supported_mode == MODE_UNKNOWN)
/* means we didn't set it ... default to INITIATOR */

3
drivers/scsi/hptiop.c
View File

@ -573,7 +573,7 @@ static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
scsi_set_resid(scp,
scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
scp->result = SAM_STAT_CHECK_CONDITION;
memcpy(&scp->sense_buffer, &req->sg_list,
memcpy(scp->sense_buffer, &req->sg_list,
min_t(size_t, SCSI_SENSE_BUFFERSIZE,
le32_to_cpu(req->dataxfer_length)));
break;
@ -906,7 +906,6 @@ static struct scsi_host_template driver_template = {
.unchecked_isa_dma = 0,
.emulated = 0,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.proc_name = driver_name,
.shost_attrs = hptiop_attrs,
.this_id = -1,

1
drivers/scsi/ibmmca.c
View File

@ -1501,7 +1501,6 @@ static struct scsi_host_template ibmmca_driver_template = {
.sg_tablesize = 16,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static int ibmmca_probe(struct device *dev)

1
drivers/scsi/ibmvscsi/ibmvscsi.c
View File

@ -1600,7 +1600,6 @@ static struct scsi_host_template driver_template = {
.this_id = -1,
.sg_tablesize = SG_ALL,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = ibmvscsi_attrs,
};

1
drivers/scsi/initio.c
View File

@ -2833,7 +2833,6 @@ static struct scsi_host_template initio_template = {
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static int initio_probe_one(struct pci_dev *pdev,

1
drivers/scsi/iscsi_tcp.c
View File

@ -1933,7 +1933,6 @@ static struct scsi_host_template iscsi_sht = {
.eh_device_reset_handler= iscsi_eh_device_reset,
.eh_host_reset_handler = iscsi_eh_host_reset,
.use_clustering = DISABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.slave_configure = iscsi_tcp_slave_configure,
.proc_name = "iscsi_tcp",
.this_id = -1,

4
drivers/scsi/libsrp.c
View File

@ -426,8 +426,8 @@ int srp_cmd_queue(struct Scsi_Host *shost, struct srp_cmd *cmd, void *info,
sc->SCp.ptr = info;
memcpy(sc->cmnd, cmd->cdb, MAX_COMMAND_SIZE);
sc->request_bufflen = len;
sc->request_buffer = (void *) (unsigned long) addr;
sc->sdb.length = len;
sc->sdb.table.sgl = (void *) (unsigned long) addr;
sc->tag = tag;
err = scsi_tgt_queue_command(sc, itn_id, (struct scsi_lun *)&cmd->lun,
cmd->tag);

2
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -1459,7 +1459,6 @@ struct scsi_host_template lpfc_template = {
.scan_finished = lpfc_scan_finished,
.this_id = -1,
.sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT,
.use_sg_chaining = ENABLE_SG_CHAINING,
.cmd_per_lun = LPFC_CMD_PER_LUN,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = lpfc_hba_attrs,
@ -1482,7 +1481,6 @@ struct scsi_host_template lpfc_vport_template = {
.sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT,
.cmd_per_lun = LPFC_CMD_PER_LUN,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = lpfc_vport_attrs,
.max_sectors = 0xFFFF,
};

1
drivers/scsi/mac53c94.c
View File

@ -402,7 +402,6 @@ static struct scsi_host_template mac53c94_template = {
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
.use_clustering = DISABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static int mac53c94_probe(struct macio_dev *mdev, const struct of_device_id *match)

1
drivers/scsi/megaraid.c
View File

@ -4490,7 +4490,6 @@ static struct scsi_host_template megaraid_template = {
.sg_tablesize = MAX_SGLIST,
.cmd_per_lun = DEF_CMD_PER_LUN,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.eh_abort_handler = megaraid_abort,
.eh_device_reset_handler = megaraid_reset,
.eh_bus_reset_handler = megaraid_reset,

1
drivers/scsi/megaraid/megaraid_mbox.c
View File

@ -361,7 +361,6 @@ static struct scsi_host_template megaraid_template_g = {
.eh_host_reset_handler = megaraid_reset_handler,
.change_queue_depth = megaraid_change_queue_depth,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.sdev_attrs = megaraid_sdev_attrs,
.shost_attrs = megaraid_shost_attrs,
};

1
drivers/scsi/megaraid/megaraid_sas.c
View File

@ -1192,7 +1192,6 @@ static struct scsi_host_template megasas_template = {
.eh_timed_out = megasas_reset_timer,
.bios_param = megasas_bios_param,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
/**

1
drivers/scsi/mesh.c
View File

@ -1843,7 +1843,6 @@ static struct scsi_host_template mesh_template = {
.sg_tablesize = SG_ALL,
.cmd_per_lun = 2,
.use_clustering = DISABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match)

2
drivers/scsi/ncr53c8xx.c
View File

@ -4967,7 +4967,7 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
sizeof(cp->sense_buf)));
if (DEBUG_FLAGS & (DEBUG_RESULT|DEBUG_TINY)) {
u_char * p = (u_char*) & cmd->sense_buffer;
u_char *p = cmd->sense_buffer;
int i;
PRINT_ADDR(cmd, "sense data:");
for (i=0; i<14; i++) printk (" %x", *p++);

1
drivers/scsi/nsp32.c
View File

@ -281,7 +281,6 @@ static struct scsi_host_template nsp32_template = {
.cmd_per_lun = 1,
.this_id = NSP32_HOST_SCSIID,
.use_clustering = DISABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.eh_abort_handler = nsp32_eh_abort,
.eh_bus_reset_handler = nsp32_eh_bus_reset,
.eh_host_reset_handler = nsp32_eh_host_reset,

1
drivers/scsi/pcmcia/sym53c500_cs.c
View File

@ -692,7 +692,6 @@ static struct scsi_host_template sym53c500_driver_template = {
.sg_tablesize = 32,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.shost_attrs = SYM53C500_shost_attrs
};

1
drivers/scsi/qla1280.c
View File

@ -4204,7 +4204,6 @@ static struct scsi_host_template qla1280_driver_template = {
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};

2
drivers/scsi/qla2xxx/qla_os.c
View File

@ -131,7 +131,6 @@ static struct scsi_host_template qla2x00_driver_template = {
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.sg_tablesize = SG_ALL,
/*
@ -163,7 +162,6 @@ struct scsi_host_template qla24xx_driver_template = {
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.sg_tablesize = SG_ALL,
.max_sectors = 0xFFFF,

1
drivers/scsi/qla4xxx/ql4_os.c
View File

@ -94,7 +94,6 @@ static struct scsi_host_template qla4xxx_driver_template = {
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.sg_tablesize = SG_ALL,
.max_sectors = 0xFFFF,

1
drivers/scsi/qlogicfas.c
View File

@ -197,7 +197,6 @@ static struct scsi_host_template qlogicfas_driver_template = {
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
.use_clustering = DISABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static __init int qlogicfas_init(void)

2
drivers/scsi/scsi.c
View File

@ -757,7 +757,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
"Notifying upper driver of completion "
"(result %x)\n", cmd->result));
good_bytes = cmd->request_bufflen;
good_bytes = scsi_bufflen(cmd);
if (cmd->request->cmd_type != REQ_TYPE_BLOCK_PC) {
drv = scsi_cmd_to_driver(cmd);
if (drv->done)

174
drivers/scsi/scsi_debug.c
View File

@ -280,6 +280,8 @@ static int resp_write(struct scsi_cmnd * SCpnt, unsigned long long lba,
unsigned int num, struct sdebug_dev_info * devip);
static int resp_report_luns(struct scsi_cmnd * SCpnt,
struct sdebug_dev_info * devip);
static int resp_xdwriteread(struct scsi_cmnd *scp, unsigned long long lba,
unsigned int num, struct sdebug_dev_info *devip);
static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
int arr_len);
static int fetch_to_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
@ -311,12 +313,48 @@ static void sdebug_max_tgts_luns(void);
static struct device pseudo_primary;
static struct bus_type pseudo_lld_bus;
static void get_data_transfer_info(unsigned char *cmd,
unsigned long long *lba, unsigned int *num)
{
int i;
switch (*cmd) {
case WRITE_16:
case READ_16:
for (*lba = 0, i = 0; i < 8; ++i) {
if (i > 0)
*lba <<= 8;
*lba += cmd[2 + i];
}
*num = cmd[13] + (cmd[12] << 8) +
(cmd[11] << 16) + (cmd[10] << 24);
break;
case WRITE_12:
case READ_12:
*lba = cmd[5] + (cmd[4] << 8) + (cmd[3] << 16) + (cmd[2] << 24);
*num = cmd[9] + (cmd[8] << 8) + (cmd[7] << 16) + (cmd[6] << 24);
break;
case WRITE_10:
case READ_10:
case XDWRITEREAD_10:
*lba = cmd[5] + (cmd[4] << 8) + (cmd[3] << 16) + (cmd[2] << 24);
*num = cmd[8] + (cmd[7] << 8);
break;
case WRITE_6:
case READ_6:
*lba = cmd[3] + (cmd[2] << 8) + ((cmd[1] & 0x1f) << 16);
*num = (0 == cmd[4]) ? 256 : cmd[4];
break;
default:
break;
}
}
static
int scsi_debug_queuecommand(struct scsi_cmnd * SCpnt, done_funct_t done)
{
unsigned char *cmd = (unsigned char *) SCpnt->cmnd;
int len, k, j;
int len, k;
unsigned int num;
unsigned long long lba;
int errsts = 0;
@ -452,28 +490,7 @@ int scsi_debug_queuecommand(struct scsi_cmnd * SCpnt, done_funct_t done)
break;
if (scsi_debug_fake_rw)
break;
if ((*cmd) == READ_16) {
for (lba = 0, j = 0; j < 8; ++j) {
if (j > 0)
lba <<= 8;
lba += cmd[2 + j];
}
num = cmd[13] + (cmd[12] << 8) +
(cmd[11] << 16) + (cmd[10] << 24);
} else if ((*cmd) == READ_12) {
lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
num = cmd[9] + (cmd[8] << 8) +
(cmd[7] << 16) + (cmd[6] << 24);
} else if ((*cmd) == READ_10) {
lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
num = cmd[8] + (cmd[7] << 8);
} else { /* READ (6) */
lba = cmd[3] + (cmd[2] << 8) +
((cmd[1] & 0x1f) << 16);
num = (0 == cmd[4]) ? 256 : cmd[4];
}
get_data_transfer_info(cmd, &lba, &num);
errsts = resp_read(SCpnt, lba, num, devip);
if (inj_recovered && (0 == errsts)) {
mk_sense_buffer(devip, RECOVERED_ERROR,
@ -500,28 +517,7 @@ int scsi_debug_queuecommand(struct scsi_cmnd * SCpnt, done_funct_t done)
break;
if (scsi_debug_fake_rw)
break;
if ((*cmd) == WRITE_16) {
for (lba = 0, j = 0; j < 8; ++j) {
if (j > 0)
lba <<= 8;
lba += cmd[2 + j];
}
num = cmd[13] + (cmd[12] << 8) +
(cmd[11] << 16) + (cmd[10] << 24);
} else if ((*cmd) == WRITE_12) {
lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
num = cmd[9] + (cmd[8] << 8) +
(cmd[7] << 16) + (cmd[6] << 24);
} else if ((*cmd) == WRITE_10) {
lba = cmd[5] + (cmd[4] << 8) +
(cmd[3] << 16) + (cmd[2] << 24);
num = cmd[8] + (cmd[7] << 8);
} else { /* WRITE (6) */
lba = cmd[3] + (cmd[2] << 8) +
((cmd[1] & 0x1f) << 16);
num = (0 == cmd[4]) ? 256 : cmd[4];
}
get_data_transfer_info(cmd, &lba, &num);
errsts = resp_write(SCpnt, lba, num, devip);
if (inj_recovered && (0 == errsts)) {
mk_sense_buffer(devip, RECOVERED_ERROR,
@ -549,6 +545,28 @@ int scsi_debug_queuecommand(struct scsi_cmnd * SCpnt, done_funct_t done)
case WRITE_BUFFER:
errsts = check_readiness(SCpnt, 1, devip);
break;
case XDWRITEREAD_10:
if (!scsi_bidi_cmnd(SCpnt)) {
mk_sense_buffer(devip, ILLEGAL_REQUEST,
INVALID_FIELD_IN_CDB, 0);
errsts = check_condition_result;
break;
}
errsts = check_readiness(SCpnt, 0, devip);
if (errsts)
break;
if (scsi_debug_fake_rw)
break;
get_data_transfer_info(cmd, &lba, &num);
errsts = resp_read(SCpnt, lba, num, devip);
if (errsts)
break;
errsts = resp_write(SCpnt, lba, num, devip);
if (errsts)
break;
errsts = resp_xdwriteread(SCpnt, lba, num, devip);
break;
default:
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: Opcode: 0x%x not "
@ -601,18 +619,18 @@ static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
int k, req_len, act_len, len, active;
void * kaddr;
void * kaddr_off;
struct scatterlist * sg;
struct scatterlist *sg;
struct scsi_data_buffer *sdb = scsi_in(scp);
if (0 == scsi_bufflen(scp))
if (!sdb->length)
return 0;
if (NULL == scsi_sglist(scp))
if (!sdb->table.sgl)
return (DID_ERROR << 16);
if (! ((scp->sc_data_direction == DMA_BIDIRECTIONAL) ||
(scp->sc_data_direction == DMA_FROM_DEVICE)))
if (!(scsi_bidi_cmnd(scp) || scp->sc_data_direction == DMA_FROM_DEVICE))
return (DID_ERROR << 16);
active = 1;
req_len = act_len = 0;
scsi_for_each_sg(scp, sg, scsi_sg_count(scp), k) {
for_each_sg(sdb->table.sgl, sg, sdb->table.nents, k) {
if (active) {
kaddr = (unsigned char *)
kmap_atomic(sg_page(sg), KM_USER0);
@ -630,10 +648,10 @@ static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
}
req_len += sg->length;
}
if (scsi_get_resid(scp))
scsi_set_resid(scp, scsi_get_resid(scp) - act_len);
if (sdb->resid)
sdb->resid -= act_len;
else
scsi_set_resid(scp, req_len - act_len);
sdb->resid = req_len - act_len;
return 0;
}
@ -650,8 +668,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
return 0;
if (NULL == scsi_sglist(scp))
return -1;
if (! ((scp->sc_data_direction == DMA_BIDIRECTIONAL) ||
(scp->sc_data_direction == DMA_TO_DEVICE)))
if (!(scsi_bidi_cmnd(scp) || scp->sc_data_direction == DMA_TO_DEVICE))
return -1;
req_len = fin = 0;
scsi_for_each_sg(scp, sg, scsi_sg_count(scp), k) {
@ -1956,6 +1973,50 @@ static int resp_report_luns(struct scsi_cmnd * scp,
min((int)alloc_len, SDEBUG_RLUN_ARR_SZ));
}
static int resp_xdwriteread(struct scsi_cmnd *scp, unsigned long long lba,
unsigned int num, struct sdebug_dev_info *devip)
{
int i, j, ret = -1;
unsigned char *kaddr, *buf;
unsigned int offset;
struct scatterlist *sg;
struct scsi_data_buffer *sdb = scsi_in(scp);
/* better not to use temporary buffer. */
buf = kmalloc(scsi_bufflen(scp), GFP_ATOMIC);
if (!buf)
return ret;
offset = 0;
scsi_for_each_sg(scp, sg, scsi_sg_count(scp), i) {
kaddr = (unsigned char *)kmap_atomic(sg_page(sg), KM_USER0);
if (!kaddr)
goto out;
memcpy(buf + offset, kaddr + sg->offset, sg->length);
offset += sg->length;
kunmap_atomic(kaddr, KM_USER0);
}
offset = 0;
for_each_sg(sdb->table.sgl, sg, sdb->table.nents, i) {
kaddr = (unsigned char *)kmap_atomic(sg_page(sg), KM_USER0);
if (!kaddr)
goto out;
for (j = 0; j < sg->length; j++)
*(kaddr + sg->offset + j) ^= *(buf + offset + j);
offset += sg->length;
kunmap_atomic(kaddr, KM_USER0);
}
ret = 0;
out:
kfree(buf);
return ret;
}
/* When timer goes off this function is called. */
static void timer_intr_handler(unsigned long indx)
{
@ -1989,6 +2050,7 @@ static int scsi_debug_slave_alloc(struct scsi_device * sdp)
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %u>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
set_bit(QUEUE_FLAG_BIDI, &sdp->request_queue->queue_flags);
return 0;
}

33
drivers/scsi/scsi_error.c
View File

@ -617,29 +617,27 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses,
ses->cmd_len = scmd->cmd_len;
memcpy(ses->cmnd, scmd->cmnd, sizeof(scmd->cmnd));
ses->data_direction = scmd->sc_data_direction;
ses->bufflen = scmd->request_bufflen;
ses->buffer = scmd->request_buffer;
ses->use_sg = scmd->use_sg;
ses->resid = scmd->resid;
ses->sdb = scmd->sdb;
ses->next_rq = scmd->request->next_rq;
ses->result = scmd->result;
memset(&scmd->sdb, 0, sizeof(scmd->sdb));
scmd->request->next_rq = NULL;
if (sense_bytes) {
scmd->request_bufflen = min_t(unsigned,
SCSI_SENSE_BUFFERSIZE, sense_bytes);
scmd->sdb.length = min_t(unsigned, SCSI_SENSE_BUFFERSIZE,
sense_bytes);
sg_init_one(&ses->sense_sgl, scmd->sense_buffer,
scmd->request_bufflen);
scmd->request_buffer = &ses->sense_sgl;
scmd->sdb.length);
scmd->sdb.table.sgl = &ses->sense_sgl;
scmd->sc_data_direction = DMA_FROM_DEVICE;
scmd->use_sg = 1;
scmd->sdb.table.nents = 1;
memset(scmd->cmnd, 0, sizeof(scmd->cmnd));
scmd->cmnd[0] = REQUEST_SENSE;
scmd->cmnd[4] = scmd->request_bufflen;
scmd->cmnd[4] = scmd->sdb.length;
scmd->cmd_len = COMMAND_SIZE(scmd->cmnd[0]);
} else {
scmd->request_buffer = NULL;
scmd->request_bufflen = 0;
scmd->sc_data_direction = DMA_NONE;
scmd->use_sg = 0;
if (cmnd) {
memset(scmd->cmnd, 0, sizeof(scmd->cmnd));
memcpy(scmd->cmnd, cmnd, cmnd_size);
@ -676,10 +674,8 @@ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses)
scmd->cmd_len = ses->cmd_len;
memcpy(scmd->cmnd, ses->cmnd, sizeof(scmd->cmnd));
scmd->sc_data_direction = ses->data_direction;
scmd->request_bufflen = ses->bufflen;
scmd->request_buffer = ses->buffer;
scmd->use_sg = ses->use_sg;
scmd->resid = ses->resid;
scmd->sdb = ses->sdb;
scmd->request->next_rq = ses->next_rq;
scmd->result = ses->result;
}
EXPORT_SYMBOL(scsi_eh_restore_cmnd);
@ -1700,8 +1696,7 @@ scsi_reset_provider(struct scsi_device *dev, int flag)
memset(&scmd->cmnd, '\0', sizeof(scmd->cmnd));
scmd->scsi_done = scsi_reset_provider_done_command;
scmd->request_buffer = NULL;
scmd->request_bufflen = 0;
memset(&scmd->sdb, 0, sizeof(scmd->sdb));
scmd->cmd_len = 0;

276
drivers/scsi/scsi_lib.c
View File

@ -8,6 +8,7 @@
*/
#include <linux/bio.h>
#include <linux/bitops.h>
#include <linux/blkdev.h>
#include <linux/completion.h>
#include <linux/kernel.h>
@ -34,13 +35,6 @@
#define SG_MEMPOOL_NR ARRAY_SIZE(scsi_sg_pools)
#define SG_MEMPOOL_SIZE 2
/*
* The maximum number of SG segments that we will put inside a scatterlist
* (unless chaining is used). Should ideally fit inside a single page, to
* avoid a higher order allocation.
*/
#define SCSI_MAX_SG_SEGMENTS 128
struct scsi_host_sg_pool {
size_t size;
char *name;
@ -48,22 +42,31 @@ struct scsi_host_sg_pool {
mempool_t *pool;
};
#define SP(x) { x, "sgpool-" #x }
#define SP(x) { x, "sgpool-" __stringify(x) }
#if (SCSI_MAX_SG_SEGMENTS < 32)
#error SCSI_MAX_SG_SEGMENTS is too small (must be 32 or greater)
#endif
static struct scsi_host_sg_pool scsi_sg_pools[] = {
SP(8),
SP(16),
#if (SCSI_MAX_SG_SEGMENTS > 16)
SP(32),
#if (SCSI_MAX_SG_SEGMENTS > 32)
SP(64),
SP(32),
#if (SCSI_MAX_SG_SEGMENTS > 64)
SP(64),
#if (SCSI_MAX_SG_SEGMENTS > 128)
SP(128),
#if (SCSI_MAX_SG_SEGMENTS > 256)
#error SCSI_MAX_SG_SEGMENTS is too large (256 MAX)
#endif
#endif
#endif
#endif
SP(SCSI_MAX_SG_SEGMENTS)
};
#undef SP
static struct kmem_cache *scsi_bidi_sdb_cache;
static void scsi_run_queue(struct request_queue *q);
/*
@ -440,7 +443,7 @@ EXPORT_SYMBOL_GPL(scsi_execute_async);
static void scsi_init_cmd_errh(struct scsi_cmnd *cmd)
{
cmd->serial_number = 0;
cmd->resid = 0;
scsi_set_resid(cmd, 0);
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
if (cmd->cmd_len == 0)
cmd->cmd_len = COMMAND_SIZE(cmd->cmnd[0]);
@ -690,42 +693,16 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int error,
return NULL;
}
/*
* Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit
* is totally arbitrary, a setting of 2048 will get you at least 8mb ios.
*/
#define SCSI_MAX_SG_CHAIN_SEGMENTS 2048
static inline unsigned int scsi_sgtable_index(unsigned short nents)
{
unsigned int index;
switch (nents) {
case 1 ... 8:
BUG_ON(nents > SCSI_MAX_SG_SEGMENTS);
if (nents <= 8)
index = 0;
break;
case 9 ... 16:
index = 1;
break;
#if (SCSI_MAX_SG_SEGMENTS > 16)
case 17 ... 32:
index = 2;
break;
#if (SCSI_MAX_SG_SEGMENTS > 32)
case 33 ... 64:
index = 3;
break;
#if (SCSI_MAX_SG_SEGMENTS > 64)
case 65 ... 128:
index = 4;
break;
#endif
#endif
#endif
default:
printk(KERN_ERR "scsi: bad segment count=%d\n", nents);
BUG();
}
else
index = get_count_order(nents) - 3;
return index;
}
@ -746,31 +723,27 @@ static struct scatterlist *scsi_sg_alloc(unsigned int nents, gfp_t gfp_mask)
return mempool_alloc(sgp->pool, gfp_mask);
}
int scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
static int scsi_alloc_sgtable(struct scsi_data_buffer *sdb, int nents,
gfp_t gfp_mask)
{
int ret;
BUG_ON(!cmd->use_sg);
BUG_ON(!nents);
ret = __sg_alloc_table(&cmd->sg_table, cmd->use_sg,
SCSI_MAX_SG_SEGMENTS, gfp_mask, scsi_sg_alloc);
ret = __sg_alloc_table(&sdb->table, nents, SCSI_MAX_SG_SEGMENTS,
gfp_mask, scsi_sg_alloc);
if (unlikely(ret))
__sg_free_table(&cmd->sg_table, SCSI_MAX_SG_SEGMENTS,
__sg_free_table(&sdb->table, SCSI_MAX_SG_SEGMENTS,
scsi_sg_free);
cmd->request_buffer = cmd->sg_table.sgl;
return ret;
}
EXPORT_SYMBOL(scsi_alloc_sgtable);
void scsi_free_sgtable(struct scsi_cmnd *cmd)
static void scsi_free_sgtable(struct scsi_data_buffer *sdb)
{
__sg_free_table(&cmd->sg_table, SCSI_MAX_SG_SEGMENTS, scsi_sg_free);
__sg_free_table(&sdb->table, SCSI_MAX_SG_SEGMENTS, scsi_sg_free);
}
EXPORT_SYMBOL(scsi_free_sgtable);
/*
* Function: scsi_release_buffers()
*
@ -788,17 +761,49 @@ EXPORT_SYMBOL(scsi_free_sgtable);
* the scatter-gather table, and potentially any bounce
* buffers.
*/
static void scsi_release_buffers(struct scsi_cmnd *cmd)
void scsi_release_buffers(struct scsi_cmnd *cmd)
{
if (cmd->use_sg)
scsi_free_sgtable(cmd);
if (cmd->sdb.table.nents)
scsi_free_sgtable(&cmd->sdb);
memset(&cmd->sdb, 0, sizeof(cmd->sdb));
if (scsi_bidi_cmnd(cmd)) {
struct scsi_data_buffer *bidi_sdb =
cmd->request->next_rq->special;
scsi_free_sgtable(bidi_sdb);
kmem_cache_free(scsi_bidi_sdb_cache, bidi_sdb);
cmd->request->next_rq->special = NULL;
}
}
EXPORT_SYMBOL(scsi_release_buffers);
/*
* Bidi commands Must be complete as a whole, both sides at once.
* If part of the bytes were written and lld returned
* scsi_in()->resid and/or scsi_out()->resid this information will be left
* in req->data_len and req->next_rq->data_len. The upper-layer driver can
* decide what to do with this information.
*/
void scsi_end_bidi_request(struct scsi_cmnd *cmd)
{
struct request *req = cmd->request;
unsigned int dlen = req->data_len;
unsigned int next_dlen = req->next_rq->data_len;
req->data_len = scsi_out(cmd)->resid;
req->next_rq->data_len = scsi_in(cmd)->resid;
/* The req and req->next_rq have not been completed */
BUG_ON(blk_end_bidi_request(req, 0, dlen, next_dlen));
scsi_release_buffers(cmd);
/*
* Zero these out. They now point to freed memory, and it is
* dangerous to hang onto the pointers.
* This will goose the queue request function at the end, so we don't
* need to worry about launching another command.
*/
cmd->request_buffer = NULL;
cmd->request_bufflen = 0;
scsi_next_command(cmd);
}
/*
@ -832,7 +837,7 @@ static void scsi_release_buffers(struct scsi_cmnd *cmd)
void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
{
int result = cmd->result;
int this_count = cmd->request_bufflen;
int this_count = scsi_bufflen(cmd);
struct request_queue *q = cmd->device->request_queue;
struct request *req = cmd->request;
int clear_errors = 1;
@ -840,8 +845,6 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
int sense_valid = 0;
int sense_deferred = 0;
scsi_release_buffers(cmd);
if (result) {
sense_valid = scsi_command_normalize_sense(cmd, &sshdr);
if (sense_valid)
@ -864,9 +867,17 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
req->sense_len = len;
}
}
req->data_len = cmd->resid;
if (scsi_bidi_cmnd(cmd)) {
/* will also release_buffers */
scsi_end_bidi_request(cmd);
return;
}
req->data_len = scsi_get_resid(cmd);
}
BUG_ON(blk_bidi_rq(req)); /* bidi not support for !blk_pc_request yet */
scsi_release_buffers(cmd);
/*
* Next deal with any sectors which we were able to correctly
* handle.
@ -874,7 +885,6 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
SCSI_LOG_HLCOMPLETE(1, printk("%ld sectors total, "
"%d bytes done.\n",
req->nr_sectors, good_bytes));
SCSI_LOG_HLCOMPLETE(1, printk("use_sg is %d\n", cmd->use_sg));
if (clear_errors)
req->errors = 0;
@ -991,6 +1001,35 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
scsi_end_request(cmd, -EIO, this_count, !result);
}
static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb,
gfp_t gfp_mask)
{
int count;
/*
* If sg table allocation fails, requeue request later.
*/
if (unlikely(scsi_alloc_sgtable(sdb, req->nr_phys_segments,
gfp_mask))) {
return BLKPREP_DEFER;
}
req->buffer = NULL;
if (blk_pc_request(req))
sdb->length = req->data_len;
else
sdb->length = req->nr_sectors << 9;
/*
* Next, walk the list, and fill in the addresses and sizes of
* each segment.
*/
count = blk_rq_map_sg(req->q, req, sdb->table.sgl);
BUG_ON(count > sdb->table.nents);
sdb->table.nents = count;
return BLKPREP_OK;
}
/*
* Function: scsi_init_io()
*
@ -1000,42 +1039,41 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
*
* Returns: 0 on success
* BLKPREP_DEFER if the failure is retryable
* BLKPREP_KILL if the failure is fatal
*/
static int scsi_init_io(struct scsi_cmnd *cmd)
int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask)
{
struct request *req = cmd->request;
int count;
int error = scsi_init_sgtable(cmd->request, &cmd->sdb, gfp_mask);
if (error)
goto err_exit;
/*
* We used to not use scatter-gather for single segment request,
* but now we do (it makes highmem I/O easier to support without
* kmapping pages)
*/
cmd->use_sg = req->nr_phys_segments;
if (blk_bidi_rq(cmd->request)) {
struct scsi_data_buffer *bidi_sdb = kmem_cache_zalloc(
scsi_bidi_sdb_cache, GFP_ATOMIC);
if (!bidi_sdb) {
error = BLKPREP_DEFER;
goto err_exit;
}
/*
* If sg table allocation fails, requeue request later.
*/
if (unlikely(scsi_alloc_sgtable(cmd, GFP_ATOMIC))) {
scsi_unprep_request(req);
return BLKPREP_DEFER;
cmd->request->next_rq->special = bidi_sdb;
error = scsi_init_sgtable(cmd->request->next_rq, bidi_sdb,
GFP_ATOMIC);
if (error)
goto err_exit;
}
req->buffer = NULL;
if (blk_pc_request(req))
cmd->request_bufflen = req->data_len;
else
cmd->request_bufflen = req->nr_sectors << 9;
return BLKPREP_OK ;
/*
* Next, walk the list, and fill in the addresses and sizes of
* each segment.
*/
count = blk_rq_map_sg(req->q, req, cmd->request_buffer);
BUG_ON(count > cmd->use_sg);
cmd->use_sg = count;
return BLKPREP_OK;
err_exit:
scsi_release_buffers(cmd);
if (error == BLKPREP_KILL)
scsi_put_command(cmd);
else /* BLKPREP_DEFER */
scsi_unprep_request(cmd->request);
return error;
}
EXPORT_SYMBOL(scsi_init_io);
static struct scsi_cmnd *scsi_get_cmd_from_req(struct scsi_device *sdev,
struct request *req)
@ -1081,16 +1119,14 @@ int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req)
BUG_ON(!req->nr_phys_segments);
ret = scsi_init_io(cmd);
ret = scsi_init_io(cmd, GFP_ATOMIC);
if (unlikely(ret))
return ret;
} else {
BUG_ON(req->data_len);
BUG_ON(req->data);
cmd->request_bufflen = 0;
cmd->request_buffer = NULL;
cmd->use_sg = 0;
memset(&cmd->sdb, 0, sizeof(cmd->sdb));
req->buffer = NULL;
}
@ -1132,7 +1168,7 @@ int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req)
if (unlikely(!cmd))
return BLKPREP_DEFER;
return scsi_init_io(cmd);
return scsi_init_io(cmd, GFP_ATOMIC);
}
EXPORT_SYMBOL(scsi_setup_fs_cmnd);
@ -1542,20 +1578,7 @@ struct request_queue *__scsi_alloc_queue(struct Scsi_Host *shost,
* this limit is imposed by hardware restrictions
*/
blk_queue_max_hw_segments(q, shost->sg_tablesize);
/*
* In the future, sg chaining support will be mandatory and this
* ifdef can then go away. Right now we don't have all archs
* converted, so better keep it safe.
*/
#ifdef ARCH_HAS_SG_CHAIN
if (shost->use_sg_chaining)
blk_queue_max_phys_segments(q, SCSI_MAX_SG_CHAIN_SEGMENTS);
else
blk_queue_max_phys_segments(q, SCSI_MAX_SG_SEGMENTS);
#else
blk_queue_max_phys_segments(q, SCSI_MAX_SG_SEGMENTS);
#endif
blk_queue_max_phys_segments(q, SCSI_MAX_SG_CHAIN_SEGMENTS);
blk_queue_max_sectors(q, shost->max_sectors);
blk_queue_bounce_limit(q, scsi_calculate_bounce_limit(shost));
@ -1654,6 +1677,14 @@ int __init scsi_init_queue(void)
return -ENOMEM;
}
scsi_bidi_sdb_cache = kmem_cache_create("scsi_bidi_sdb",
sizeof(struct scsi_data_buffer),
0, 0, NULL);
if (!scsi_bidi_sdb_cache) {
printk(KERN_ERR "SCSI: can't init scsi bidi sdb cache\n");
goto cleanup_io_context;
}
for (i = 0; i < SG_MEMPOOL_NR; i++) {
struct scsi_host_sg_pool *sgp = scsi_sg_pools + i;
int size = sgp->size * sizeof(struct scatterlist);
@ -1663,6 +1694,7 @@ int __init scsi_init_queue(void)
if (!sgp->slab) {
printk(KERN_ERR "SCSI: can't init sg slab %s\n",
sgp->name);
goto cleanup_bidi_sdb;
}
sgp->pool = mempool_create_slab_pool(SG_MEMPOOL_SIZE,
@ -1670,10 +1702,25 @@ int __init scsi_init_queue(void)
if (!sgp->pool) {
printk(KERN_ERR "SCSI: can't init sg mempool %s\n",
sgp->name);
goto cleanup_bidi_sdb;
}
}
return 0;
cleanup_bidi_sdb:
for (i = 0; i < SG_MEMPOOL_NR; i++) {
struct scsi_host_sg_pool *sgp = scsi_sg_pools + i;
if (sgp->pool)
mempool_destroy(sgp->pool);
if (sgp->slab)
kmem_cache_destroy(sgp->slab);
}
kmem_cache_destroy(scsi_bidi_sdb_cache);
cleanup_io_context:
kmem_cache_destroy(scsi_io_context_cache);
return -ENOMEM;
}
void scsi_exit_queue(void)
@ -1681,6 +1728,7 @@ void scsi_exit_queue(void)
int i;
kmem_cache_destroy(scsi_io_context_cache);
kmem_cache_destroy(scsi_bidi_sdb_cache);
for (i = 0; i < SG_MEMPOOL_NR; i++) {
struct scsi_host_sg_pool *sgp = scsi_sg_pools + i;

28
drivers/scsi/scsi_tgt_lib.c
View File

@ -331,8 +331,7 @@ static void scsi_tgt_cmd_done(struct scsi_cmnd *cmd)
scsi_tgt_uspace_send_status(cmd, tcmd->itn_id, tcmd->tag);
if (scsi_sglist(cmd))
scsi_free_sgtable(cmd);
scsi_release_buffers(cmd);
queue_work(scsi_tgtd, &tcmd->work);
}
@ -353,25 +352,6 @@ static int scsi_tgt_transfer_response(struct scsi_cmnd *cmd)
return 0;
}
static int scsi_tgt_init_cmd(struct scsi_cmnd *cmd, gfp_t gfp_mask)
{
struct request *rq = cmd->request;
int count;
cmd->use_sg = rq->nr_phys_segments;
if (scsi_alloc_sgtable(cmd, gfp_mask))
return -ENOMEM;
cmd->request_bufflen = rq->data_len;
dprintk("cmd %p cnt %d %lu\n", cmd, scsi_sg_count(cmd),
rq_data_dir(rq));
count = blk_rq_map_sg(rq->q, rq, scsi_sglist(cmd));
BUG_ON(count > cmd->use_sg);
cmd->use_sg = count;
return 0;
}
/* TODO: test this crap and replace bio_map_user with new interface maybe */
static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
unsigned long uaddr, unsigned int len, int rw)
@ -397,9 +377,11 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
}
tcmd->bio = rq->bio;
err = scsi_tgt_init_cmd(cmd, GFP_KERNEL);
if (err)
err = scsi_init_io(cmd, GFP_KERNEL);
if (err) {
scsi_release_buffers(cmd);
goto unmap_rq;
}
return 0;

4
drivers/scsi/sd.c
View File

@ -519,7 +519,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
SCpnt->cmnd[4] = (unsigned char) this_count;
SCpnt->cmnd[5] = 0;
}
SCpnt->request_bufflen = this_count * sdp->sector_size;
SCpnt->sdb.length = this_count * sdp->sector_size;
/*
* We shouldn't disconnect in the middle of a sector, so with a dumb
@ -926,7 +926,7 @@ static struct block_device_operations sd_fops = {
static int sd_done(struct scsi_cmnd *SCpnt)
{
int result = SCpnt->result;
unsigned int xfer_size = SCpnt->request_bufflen;
unsigned int xfer_size = scsi_bufflen(SCpnt);
unsigned int good_bytes = result ? 0 : xfer_size;
u64 start_lba = SCpnt->request->sector;
u64 bad_lba;

64
drivers/scsi/sgiwd93.c
View File

@ -33,10 +33,9 @@
struct ip22_hostdata {
struct WD33C93_hostdata wh;
struct hpc_data {
dma_addr_t dma;
void *cpu;
} hd;
dma_addr_t dma;
void *cpu;
struct device *dev;
};
#define host_to_hostdata(host) ((struct ip22_hostdata *)((host)->hostdata))
@ -46,6 +45,11 @@ struct hpc_chunk {
u32 _padding; /* align to quadword boundary */
};
/* space for hpc dma descriptors */
#define HPC_DMA_SIZE PAGE_SIZE
#define DMA_DIR(d) ((d == DATA_OUT_DIR) ? DMA_TO_DEVICE : DMA_FROM_DEVICE)
static irqreturn_t sgiwd93_intr(int irq, void *dev_id)
{
struct Scsi_Host * host = dev_id;
@ -59,15 +63,17 @@ static irqreturn_t sgiwd93_intr(int irq, void *dev_id)
}
static inline
void fill_hpc_entries(struct hpc_chunk *hcp, struct scsi_cmnd *cmd, int datainp)
void fill_hpc_entries(struct ip22_hostdata *hd, struct scsi_cmnd *cmd, int din)
{
unsigned long len = cmd->SCp.this_residual;
void *addr = cmd->SCp.ptr;
dma_addr_t physaddr;
unsigned long count;
struct hpc_chunk *hcp;
physaddr = dma_map_single(NULL, addr, len, cmd->sc_data_direction);
physaddr = dma_map_single(hd->dev, addr, len, DMA_DIR(din));
cmd->SCp.dma_handle = physaddr;
hcp = hd->cpu;
while (len) {
/*
@ -89,6 +95,9 @@ void fill_hpc_entries(struct hpc_chunk *hcp, struct scsi_cmnd *cmd, int datainp)
*/
hcp->desc.pbuf = 0;
hcp->desc.cntinfo = HPCDMA_EOX;
dma_cache_sync(hd->dev, hd->cpu,
(unsigned long)(hcp + 1) - (unsigned long)hd->cpu,
DMA_TO_DEVICE);
}
static int dma_setup(struct scsi_cmnd *cmd, int datainp)
@ -96,9 +105,8 @@ static int dma_setup(struct scsi_cmnd *cmd, int datainp)
struct ip22_hostdata *hdata = host_to_hostdata(cmd->device->host);
struct hpc3_scsiregs *hregs =
(struct hpc3_scsiregs *) cmd->device->host->base;
struct hpc_chunk *hcp = (struct hpc_chunk *) hdata->hd.cpu;
pr_debug("dma_setup: datainp<%d> hcp<%p> ", datainp, hcp);
pr_debug("dma_setup: datainp<%d> hcp<%p> ", datainp, hdata->cpu);
hdata->wh.dma_dir = datainp;
@ -111,12 +119,12 @@ static int dma_setup(struct scsi_cmnd *cmd, int datainp)
if (cmd->SCp.ptr == NULL || cmd->SCp.this_residual == 0)
return 1;
fill_hpc_entries(hcp, cmd, datainp);
fill_hpc_entries(hdata, cmd, datainp);
pr_debug(" HPCGO\n");
/* Start up the HPC. */
hregs->ndptr = hdata->hd.dma;
hregs->ndptr = hdata->dma;
if (datainp)
hregs->ctrl = HPC3_SCTRL_ACTIVE;
else
@ -134,6 +142,9 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
if (!SCpnt)
return;
if (SCpnt->SCp.ptr == NULL || SCpnt->SCp.this_residual == 0)
return;
hregs = (struct hpc3_scsiregs *) SCpnt->device->host->base;
pr_debug("dma_stop: status<%d> ", status);
@ -145,8 +156,9 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
barrier();
}
hregs->ctrl = 0;
dma_unmap_single(NULL, SCpnt->SCp.dma_handle, SCpnt->SCp.this_residual,
SCpnt->sc_data_direction);
dma_unmap_single(hdata->dev, SCpnt->SCp.dma_handle,
SCpnt->SCp.this_residual,
DMA_DIR(hdata->wh.dma_dir));
pr_debug("\n");
}
@ -161,22 +173,23 @@ void sgiwd93_reset(unsigned long base)
}
EXPORT_SYMBOL_GPL(sgiwd93_reset);
static inline void init_hpc_chain(struct hpc_data *hd)
static inline void init_hpc_chain(struct ip22_hostdata *hdata)
{
struct hpc_chunk *hcp = (struct hpc_chunk *) hd->cpu;
struct hpc_chunk *dma = (struct hpc_chunk *) hd->dma;
struct hpc_chunk *hcp = (struct hpc_chunk *)hdata->cpu;
dma_addr_t dma = hdata->dma;
unsigned long start, end;
start = (unsigned long) hcp;
end = start + PAGE_SIZE;
end = start + HPC_DMA_SIZE;
while (start < end) {
hcp->desc.pnext = (u32) (dma + 1);
hcp->desc.pnext = (u32) (dma + sizeof(struct hpc_chunk));
hcp->desc.cntinfo = HPCDMA_EOX;
hcp++; dma++;
hcp++;
dma += sizeof(struct hpc_chunk);
start += sizeof(struct hpc_chunk);
};
hcp--;
hcp->desc.pnext = hd->dma;
hcp->desc.pnext = hdata->dma;
}
static int sgiwd93_bus_reset(struct scsi_cmnd *cmd)
@ -235,16 +248,17 @@ static int __init sgiwd93_probe(struct platform_device *pdev)
host->irq = irq;
hdata = host_to_hostdata(host);
hdata->hd.cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
&hdata->hd.dma, GFP_KERNEL);
if (!hdata->hd.cpu) {
hdata->dev = &pdev->dev;
hdata->cpu = dma_alloc_noncoherent(&pdev->dev, HPC_DMA_SIZE,
&hdata->dma, GFP_KERNEL);
if (!hdata->cpu) {
printk(KERN_WARNING "sgiwd93: Could not allocate memory for "
"host %d buffer.\n", unit);
err = -ENOMEM;
goto out_put;
}
init_hpc_chain(&hdata->hd);
init_hpc_chain(hdata);
regs.SASR = wdregs + 3;
regs.SCMD = wdregs + 7;
@ -274,7 +288,7 @@ static int __init sgiwd93_probe(struct platform_device *pdev)
out_irq:
free_irq(irq, host);
out_free:
dma_free_coherent(NULL, PAGE_SIZE, hdata->hd.cpu, hdata->hd.dma);
dma_free_noncoherent(&pdev->dev, HPC_DMA_SIZE, hdata->cpu, hdata->dma);
out_put:
scsi_host_put(host);
out:
@ -290,7 +304,7 @@ static void __exit sgiwd93_remove(struct platform_device *pdev)
scsi_remove_host(host);
free_irq(pd->irq, host);
dma_free_coherent(&pdev->dev, PAGE_SIZE, hdata->hd.cpu, hdata->hd.dma);
dma_free_noncoherent(&pdev->dev, HPC_DMA_SIZE, hdata->cpu, hdata->dma);
scsi_host_put(host);
}

25
drivers/scsi/sr.c
View File

@ -231,7 +231,7 @@ out:
static int sr_done(struct scsi_cmnd *SCpnt)
{
int result = SCpnt->result;
int this_count = SCpnt->request_bufflen;
int this_count = scsi_bufflen(SCpnt);
int good_bytes = (result == 0 ? this_count : 0);
int block_sectors = 0;
long error_sector;
@ -379,17 +379,18 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq)
}
{
struct scatterlist *sg = SCpnt->request_buffer;
int i, size = 0;
for (i = 0; i < SCpnt->use_sg; i++)
size += sg[i].length;
struct scatterlist *sg;
int i, size = 0, sg_count = scsi_sg_count(SCpnt);
if (size != SCpnt->request_bufflen && SCpnt->use_sg) {
scsi_for_each_sg(SCpnt, sg, sg_count, i)
size += sg->length;
if (size != scsi_bufflen(SCpnt)) {
scmd_printk(KERN_ERR, SCpnt,
"mismatch count %d, bytes %d\n",
size, SCpnt->request_bufflen);
if (SCpnt->request_bufflen > size)
SCpnt->request_bufflen = size;
size, scsi_bufflen(SCpnt));
if (scsi_bufflen(SCpnt) > size)
SCpnt->sdb.length = size;
}
}
@ -397,12 +398,12 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq)
* request doesn't start on hw block boundary, add scatter pads
*/
if (((unsigned int)rq->sector % (s_size >> 9)) ||
(SCpnt->request_bufflen % s_size)) {
(scsi_bufflen(SCpnt) % s_size)) {
scmd_printk(KERN_NOTICE, SCpnt, "unaligned transfer\n");
goto out;
}
this_count = (SCpnt->request_bufflen >> 9) / (s_size >> 9);
this_count = (scsi_bufflen(SCpnt) >> 9) / (s_size >> 9);
SCSI_LOG_HLQUEUE(2, printk("%s : %s %d/%ld 512 byte blocks.\n",
@ -416,7 +417,7 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq)
if (this_count > 0xffff) {
this_count = 0xffff;
SCpnt->request_bufflen = this_count * s_size;
SCpnt->sdb.length = this_count * s_size;
}
SCpnt->cmnd[2] = (unsigned char) (block >> 24) & 0xff;

1
drivers/scsi/stex.c
View File

@ -1123,7 +1123,6 @@ static struct scsi_host_template driver_template = {
.this_id = -1,
.sg_tablesize = ST_MAX_SG,
.cmd_per_lun = ST_CMD_PER_LUN,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
static int stex_set_dma_mask(struct pci_dev * pdev)

1
drivers/scsi/sym53c416.c
View File

@ -840,6 +840,5 @@ static struct scsi_host_template driver_template = {
.cmd_per_lun = 1,
.unchecked_isa_dma = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#include "scsi_module.c"

3
drivers/scsi/sym53c8xx_2/sym_glue.c
View File

@ -207,7 +207,7 @@ void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid)
/*
* Bounce back the sense data to user.
*/
memset(&cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
memcpy(cmd->sense_buffer, cp->sns_bbuf,
min(SCSI_SENSE_BUFFERSIZE, SYM_SNS_BBUF_LEN));
#if 0
@ -1681,7 +1681,6 @@ static struct scsi_host_template sym2_template = {
.eh_host_reset_handler = sym53c8xx_eh_host_reset_handler,
.this_id = 7,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
.max_sectors = 0xFFFF,
#ifdef SYM_LINUX_PROC_INFO_SUPPORT
.proc_info = sym53c8xx_proc_info,

1
drivers/scsi/u14-34f.c
View File

@ -451,7 +451,6 @@ static struct scsi_host_template driver_template = {
.this_id = 7,
.unchecked_isa_dma = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)

1
drivers/scsi/ultrastor.c
View File

@ -1204,6 +1204,5 @@ static struct scsi_host_template driver_template = {
.cmd_per_lun = ULTRASTOR_MAX_CMDS_PER_LUN,
.unchecked_isa_dma = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#include "scsi_module.c"

1
drivers/scsi/wd7000.c
View File

@ -1671,7 +1671,6 @@ static struct scsi_host_template driver_template = {
.cmd_per_lun = 1,
.unchecked_isa_dma = 1,
.use_clustering = ENABLE_CLUSTERING,
.use_sg_chaining = ENABLE_SG_CHAINING,
};
#include "scsi_module.c"

8
drivers/usb/storage/isd200.c
View File

@ -415,14 +415,14 @@ static void isd200_set_srb(struct isd200_info *info,
sg_init_one(&info->sg, buff, bufflen);
srb->sc_data_direction = dir;
srb->request_buffer = buff ? &info->sg : NULL;
srb->request_bufflen = bufflen;
srb->use_sg = buff ? 1 : 0;
srb->sdb.table.sgl = buff ? &info->sg : NULL;
srb->sdb.length = bufflen;
srb->sdb.table.nents = buff ? 1 : 0;
}
static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen)
{
srb->request_bufflen = bufflen;
srb->sdb.length = bufflen;
}

20
include/scsi/scsi.h
View File

@ -10,6 +10,25 @@
#include <linux/types.h>
/*
* The maximum number of SG segments that we will put inside a
* scatterlist (unless chaining is used). Should ideally fit inside a
* single page, to avoid a higher order allocation. We could define this
* to SG_MAX_SINGLE_ALLOC to pack correctly at the highest order. The
* minimum value is 32
*/
#define SCSI_MAX_SG_SEGMENTS 128
/*
* Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit
* is totally arbitrary, a setting of 2048 will get you at least 8mb ios.
*/
#ifdef ARCH_HAS_SG_CHAIN
#define SCSI_MAX_SG_CHAIN_SEGMENTS 2048
#else
#define SCSI_MAX_SG_CHAIN_SEGMENTS SCSI_MAX_SG_SEGMENTS
#endif
/*
* SCSI command lengths
*/
@ -83,6 +102,7 @@ extern const unsigned char scsi_command_size[8];
#define READ_TOC 0x43
#define LOG_SELECT 0x4c
#define LOG_SENSE 0x4d
#define XDWRITEREAD_10 0x53
#define MODE_SELECT_10 0x55
#define RESERVE_10 0x56
#define RELEASE_10 0x57

59
include/scsi/scsi_cmnd.h
View File

@ -2,15 +2,20 @@
#define _SCSI_SCSI_CMND_H
#include <linux/dma-mapping.h>
#include <linux/blkdev.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/timer.h>
#include <linux/scatterlist.h>
struct request;
struct Scsi_Host;
struct scsi_device;
struct scsi_data_buffer {
struct sg_table table;
unsigned length;
int resid;
};
/* embedded in scsi_cmnd */
struct scsi_pointer {
@ -61,15 +66,11 @@ struct scsi_cmnd {
/* These elements define the operation we are about to perform */
#define MAX_COMMAND_SIZE 16
unsigned char cmnd[MAX_COMMAND_SIZE];
unsigned request_bufflen; /* Actual request size */
struct timer_list eh_timeout; /* Used to time out the command. */
void *request_buffer; /* Actual requested buffer */
/* These elements define the operation we ultimately want to perform */
struct sg_table sg_table;
unsigned short use_sg; /* Number of pieces of scatter-gather */
struct scsi_data_buffer sdb;
unsigned underflow; /* Return error if less than
this amount is transferred */
@ -79,10 +80,6 @@ struct scsi_cmnd {
reconnects. Probably == sector
size */
int resid; /* Number of bytes requested to be
transferred less actual number
transferred (0 if not supported) */
struct request *request; /* The command we are
working on */
@ -127,27 +124,55 @@ extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
size_t *offset, size_t *len);
extern void scsi_kunmap_atomic_sg(void *virt);
extern int scsi_alloc_sgtable(struct scsi_cmnd *, gfp_t);
extern void scsi_free_sgtable(struct scsi_cmnd *);
extern int scsi_init_io(struct scsi_cmnd *cmd, gfp_t gfp_mask);
extern void scsi_release_buffers(struct scsi_cmnd *cmd);
extern int scsi_dma_map(struct scsi_cmnd *cmd);
extern void scsi_dma_unmap(struct scsi_cmnd *cmd);
#define scsi_sg_count(cmd) ((cmd)->use_sg)
#define scsi_sglist(cmd) ((cmd)->sg_table.sgl)
#define scsi_bufflen(cmd) ((cmd)->request_bufflen)
static inline unsigned scsi_sg_count(struct scsi_cmnd *cmd)
{
return cmd->sdb.table.nents;
}
static inline struct scatterlist *scsi_sglist(struct scsi_cmnd *cmd)
{
return cmd->sdb.table.sgl;
}
static inline unsigned scsi_bufflen(struct scsi_cmnd *cmd)
{
return cmd->sdb.length;
}
static inline void scsi_set_resid(struct scsi_cmnd *cmd, int resid)
{
cmd->resid = resid;
cmd->sdb.resid = resid;
}
static inline int scsi_get_resid(struct scsi_cmnd *cmd)
{
return cmd->resid;
return cmd->sdb.resid;
}
#define scsi_for_each_sg(cmd, sg, nseg, __i) \
for_each_sg(scsi_sglist(cmd), sg, nseg, __i)
static inline int scsi_bidi_cmnd(struct scsi_cmnd *cmd)
{
return blk_bidi_rq(cmd->request) &&
(cmd->request->next_rq->special != NULL);
}
static inline struct scsi_data_buffer *scsi_in(struct scsi_cmnd *cmd)
{
return scsi_bidi_cmnd(cmd) ?
cmd->request->next_rq->special : &cmd->sdb;
}
static inline struct scsi_data_buffer *scsi_out(struct scsi_cmnd *cmd)
{
return &cmd->sdb;
}
#endif /* _SCSI_SCSI_CMND_H */

9
include/scsi/scsi_eh.h
View File

@ -68,16 +68,15 @@ extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
extern int scsi_reset_provider(struct scsi_device *, int);
struct scsi_eh_save {
/* saved state */
int result;
enum dma_data_direction data_direction;
unsigned char cmd_len;
unsigned char cmnd[MAX_COMMAND_SIZE];
struct scsi_data_buffer sdb;
struct request *next_rq;
void *buffer;
unsigned bufflen;
unsigned short use_sg;
int resid;
/* new command support */
struct scatterlist sense_sgl;
};

17
include/scsi/scsi_host.h
View File

@ -39,9 +39,6 @@ struct blk_queue_tags;
#define DISABLE_CLUSTERING 0
#define ENABLE_CLUSTERING 1
#define DISABLE_SG_CHAINING 0
#define ENABLE_SG_CHAINING 1
enum scsi_eh_timer_return {
EH_NOT_HANDLED,
EH_HANDLED,
@ -136,9 +133,9 @@ struct scsi_host_template {
* the done callback is invoked.
*
* This is called to inform the LLD to transfer
* cmd->request_bufflen bytes. The cmd->use_sg speciefies the
* scsi_bufflen(cmd) bytes. scsi_sg_count(cmd) speciefies the
* number of scatterlist entried in the command and
* cmd->request_buffer contains the scatterlist.
* scsi_sglist(cmd) returns the scatterlist.
*
* return values: see queuecommand
*
@ -445,15 +442,6 @@ struct scsi_host_template {
*/
unsigned ordered_tag:1;
/*
* true if the low-level driver can support sg chaining. this
* will be removed eventually when all the drivers are
* converted to support sg chaining.
*
* Status: OBSOLETE
*/
unsigned use_sg_chaining:1;
/*
* Countdown for host blocking with no commands outstanding
*/
@ -598,7 +586,6 @@ struct Scsi_Host {
unsigned unchecked_isa_dma:1;
unsigned use_clustering:1;
unsigned use_blk_tcq:1;
unsigned use_sg_chaining:1;
/*
* Host has requested that no further requests come through for the