On Mon, 01 Oct 2007 11:51:48 -0400 bo yang wrote:
> Adding module parameters to configure max sectors per request & # of cmds per lun.
>
> Signed-off-by: Bo Yang <[email protected]>
>
> ---
> drivers/scsi/megaraid/megaraid_sas.c | 68 ++++++++++++++++++++++++-
> drivers/scsi/megaraid/megaraid_sas.h | 2
> 2 files changed, 68 insertions(+), 2 deletions(-)
>
> diff -uprN linux-2.6.22_orig/drivers/scsi/megaraid/megaraid_sas.c linux-2.6.22_new/drivers/scsi/megaraid/megaraid_sas.c
> --- linux-2.6.22_orig/drivers/scsi/megaraid/megaraid_sas.c 2007-10-01 00:14:29.000000000 -0700
> +++ linux-2.6.22_new/drivers/scsi/megaraid/megaraid_sas.c 2007-10-01 02:15:16.000000000 -0700
> @@ -62,6 +62,23 @@ MODULE_PARM_DESC(fast_load,
> "megasas: Faster loading of the driver, skips physical devices! "\
> "(default = 0)");
>
> +/*
> + * Number of sectors per IO command will be set in megasas_init_mfi
> + * if user does not provide
> + */
> +static unsigned int max_sectors;
> +module_param_named(max_sectors, max_sectors, int, 0);
> +MODULE_PARM_DESC(max_sectors,
> + "Maximum number of sectors per IO command");
Are you sure that you want these parameters hidden (permission = 0)
instead of readable via sysfs?
(same applies to the fast_load parameter patch also)
> +/*
> + * Number of cmds per logical unit
> + */
> +static unsigned int cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;
> +module_param_named(cmd_per_lun, cmd_per_lun, int, 0);
> +MODULE_PARM_DESC(cmd_per_lun,
> + "Maximum number of commands per logical unit (default=128)");
> +
> MODULE_LICENSE("GPL");
> MODULE_VERSION(MEGASAS_VERSION);
> MODULE_AUTHOR("[email protected]");
---
~Randy
-
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