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| author | Robert Jennings <rcj@linux.vnet.ibm.com> | 2008-07-23 20:35:27 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-25 07:44:44 +0200 |
| commit | 7912a0ac5907df1f8b214b3ca15ccf96129daae0 (patch) | |
| tree | 1e281da81b4f7cac8394306303d9129ba4a2051e /drivers/scsi/ibmvscsi/ibmvscsi.h | |
| parent | ibmveth: enable driver for CMO (diff) | |
| download | linux-7912a0ac5907df1f8b214b3ca15ccf96129daae0.tar.xz linux-7912a0ac5907df1f8b214b3ca15ccf96129daae0.zip | |
ibmvscsi: driver enablement for CMO
Enable the driver to function in a Cooperative Memory Overcommitment (CMO)
environment.
The following changes are made to enable the driver for CMO:
* DMA mapping errors will not result in error messages if entitlement has
been exceeded and resources were not available.
* The driver has a get_desired_dma function defined to function
in a CMO environment. It will indicate how much IO memory it would like
to function.
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Acked by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvscsi.h')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvscsi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h index 46e850e302c7..2d4339d5e16e 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.h +++ b/drivers/scsi/ibmvscsi/ibmvscsi.h @@ -45,6 +45,8 @@ struct Scsi_Host; #define MAX_INDIRECT_BUFS 10 #define IBMVSCSI_MAX_REQUESTS_DEFAULT 100 +#define IBMVSCSI_CMDS_PER_LUN_DEFAULT 16 +#define IBMVSCSI_MAX_SECTORS_DEFAULT 256 /* 32 * 8 = default max I/O 32 pages */ #define IBMVSCSI_MAX_CMDS_PER_LUN 64 /* ------------------------------------------------------------ |