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[SCSI] remove use_sg_chaining

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With the sg table code, every SCSI driver is now either chain capable
or broken (or has sg_tablesize set so chaining is never activated), so
there's no need to have a check in the host template.

Also tidy up the code by moving the scatterlist size defines into the
SCSI includes and permit the last entry of the scatterlist pools not
to be a power of two.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Bottomley
2008-01-15 11:11:46 -06:00
parent b8de163184
commit d3f46f39b7
43 changed files with 37 additions and 111 deletions
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arch/ia64/hp/sim/simscsi.c
-1
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@@ -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
drivers/infiniband/ulp/srp/ib_srp.c
-1
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@@ -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
};
drivers/scsi/3w-9xxx.c
-1
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@@ -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
};
drivers/scsi/3w-xxxx.c
-1
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@@ -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
};
drivers/scsi/BusLogic.c
-1
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@@ -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,
};
/*
drivers/scsi/NCR53c406a.c
-1
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@@ -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"
drivers/scsi/a100u2w.c
-1
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@@ -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,
drivers/scsi/aacraid/linit.c
-1
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@@ -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,
};
drivers/scsi/aha1740.c
-1
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@@ -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,
};
drivers/scsi/aic7xxx/aic79xx_osm.c
-1
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@@ -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,
drivers/scsi/aic7xxx/aic7xxx_osm.c
-1
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@@ -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,
drivers/scsi/aic7xxx_old.c
-1
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@@ -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"
drivers/scsi/arcmsr/arcmsr_hba.c
-1
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@@ -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
drivers/scsi/dc395x.c
-1
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@@ -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,
};
drivers/scsi/dpt_i2o.c
-1
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@@ -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");
drivers/scsi/eata.c
-1
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@@ -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)
drivers/scsi/hosts.c
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@@ -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 */
drivers/scsi/hptiop.c
-1
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@@ -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,
drivers/scsi/ibmmca.c
-1
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@@ -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)
drivers/scsi/ibmvscsi/ibmvscsi.c
-1
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@@ -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,
};

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