diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/main.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index 92705c0d97a4..6212983fede2 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -38,6 +38,35 @@ static unsigned int itr_trsh = WIL6210_ITR_TRSH_DEFAULT; module_param(itr_trsh, uint, S_IRUGO); MODULE_PARM_DESC(itr_trsh, " Interrupt moderation threshold, usecs."); +/* We allow allocation of more than 1 page buffers to support large packets. + * It is suboptimal behavior performance wise in case MTU above page size. + */ +unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - ETH_HLEN; +static int mtu_max_set(const char *val, const struct kernel_param *kp) +{ + int ret; + + /* sets mtu_max directly. no need to restore it in case of + * illegal value since we assume this will fail insmod + */ + ret = param_set_uint(val, kp); + if (ret) + return ret; + + if (mtu_max < 68 || mtu_max > IEEE80211_MAX_DATA_LEN_DMG) + ret = -EINVAL; + + return ret; +} + +static struct kernel_param_ops mtu_max_ops = { + .set = mtu_max_set, + .get = param_get_uint, +}; + +module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, S_IRUGO); +MODULE_PARM_DESC(mtu_max, " Max MTU value."); + #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */ #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ |