diff options
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/target/tcp.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index 66e8f9fd0ca7..85ffcc8d0f99 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -20,6 +20,31 @@ #define NVMET_TCP_DEF_INLINE_DATA_SIZE (4 * PAGE_SIZE) +static int param_store_val(const char *str, int *val, int min, int max) +{ + int ret, new_val; + + ret = kstrtoint(str, 10, &new_val); + if (ret) + return -EINVAL; + + if (new_val < min || new_val > max) + return -EINVAL; + + *val = new_val; + return 0; +} + +static int set_params(const char *str, const struct kernel_param *kp) +{ + return param_store_val(str, kp->arg, 0, INT_MAX); +} + +static const struct kernel_param_ops set_param_ops = { + .set = set_params, + .get = param_get_int, +}; + /* Define the socket priority to use for connections were it is desirable * that the NIC consider performing optimized packet processing or filtering. * A non-zero value being sufficient to indicate general consideration of any @@ -27,8 +52,8 @@ * values that may be unique for some NIC implementations. */ static int so_priority; -module_param(so_priority, int, 0644); -MODULE_PARM_DESC(so_priority, "nvmet tcp socket optimize priority"); +device_param_cb(so_priority, &set_param_ops, &so_priority, 0644); +MODULE_PARM_DESC(so_priority, "nvmet tcp socket optimize priority: Default 0"); /* Define a time period (in usecs) that io_work() shall sample an activated * queue before determining it to be idle. This optional module behavior |