AcoSail/kernel_optimize_test
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[SCSI] zfcp: initialize scsi_host_template.max_sectors with appropriate value

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Define ZFCP_MAX_SECTORS and initialize scsi_host_template.max_sectors
with appropriate value.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Swen Schillig 2006-10-12 11:43:44 +02:00 committed by James Bottomley
parent 9531c330f1
commit 8d1a006049
2 changed files with 5 additions and 0 deletions
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4
drivers/s390/scsi/zfcp_def.h
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@ -107,6 +107,10 @@ zfcp_address_to_sg(void *address, struct scatterlist *list)
(ZFCP_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2) (ZFCP_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2)
/* request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */ /* request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */
#define ZFCP_MAX_SECTORS (ZFCP_MAX_SBALES_PER_REQ * 8)
/* max. number of (data buffer) SBALEs in largest SBAL chain
multiplied with number of sectors per 4k block */
/* FIXME(tune): free space should be one max. SBAL chain plus what? */ /* FIXME(tune): free space should be one max. SBAL chain plus what? */
#define ZFCP_QDIO_PCI_INTERVAL (QDIO_MAX_BUFFERS_PER_Q \ #define ZFCP_QDIO_PCI_INTERVAL (QDIO_MAX_BUFFERS_PER_Q \
- (ZFCP_MAX_SBALS_PER_REQ + 4)) - (ZFCP_MAX_SBALS_PER_REQ + 4))

1
drivers/s390/scsi/zfcp_scsi.c
View File

@ -58,6 +58,7 @@ struct zfcp_data zfcp_data = {
.cmd_per_lun = 1, .cmd_per_lun = 1,
.use_clustering = 1, .use_clustering = 1,
.sdev_attrs = zfcp_sysfs_sdev_attrs, .sdev_attrs = zfcp_sysfs_sdev_attrs,
.max_sectors = ZFCP_MAX_SECTORS,
}, },
.driver_version = ZFCP_VERSION, .driver_version = ZFCP_VERSION,
}; };