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[SCSI] add use_sg_chaining option to scsi_host_template

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This option is true if a low-level driver can support sg
chaining. This will be removed eventually when all the drivers are
converted to support sg chaining. q->max_phys_segments is set to
SCSI_MAX_SG_SEGMENTS if false.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
FUJITA Tomonori
2007-10-16 11:24:32 +02:00
committed by Jens Axboe
parent c0dcffd71d
commit 9cb83c7529
39 changed files with 58 additions and 3 deletions
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2
drivers/scsi/lpfc/lpfc_scsi.c
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@@ -1438,6 +1438,7 @@ struct scsi_host_template lpfc_template = {
.scan_finished = lpfc_scan_finished,
.this_id = -1,
.sg_tablesize = LPFC_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,
@@ -1460,6 +1461,7 @@ struct scsi_host_template lpfc_vport_template = {
.sg_tablesize = LPFC_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,
};