From: Lior David <[email protected]> Add 2 module parameters that control broadcast/multicast TX packets: 1. bcast_mcs0_limit - specify the maximum packet size that will be sent with MCS 0. 2. bcast_mcs - specify the MCS index to use when sending packets larger than above limit.
Signed-off-by: Lior David <[email protected]> Signed-off-by: Maya Erez <[email protected]> --- drivers/net/wireless/ath/wil6210/txrx.c | 59 +++++++++++++++++++++++++++++++-- 1 file changed, 57 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 89967ce..4fc05f7 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -67,6 +67,60 @@ static int headroom_size_set(const char *val, const struct kernel_param *kp) MODULE_PARM_DESC(headroom_size, " headroom size for rx skb allocation, default - 0"); +static uint bcast_mcs0_limit = WIL_BCAST_MCS0_LIMIT; +static int bcast_mcs0_limit_set(const char *val, const struct kernel_param *kp) +{ + int ret; + uint saved = bcast_mcs0_limit; + + ret = param_set_uint(val, kp); + if (ret) + return ret; + + if (bcast_mcs0_limit > WIL_BCAST_MCS0_LIMIT) { + bcast_mcs0_limit = saved; + ret = -EINVAL; + } + + return ret; +} + +static const struct kernel_param_ops bcast_mcs0_limit_ops = { + .set = bcast_mcs0_limit_set, + .get = param_get_uint, +}; + +module_param_cb(bcast_mcs0_limit_set, &bcast_mcs0_limit_ops, + &bcast_mcs0_limit, 0644); +MODULE_PARM_DESC(bcast_mcs0_limit, + " max broadcast packet size with MCS0, default - 1024 bytes"); + +static uint bcast_mcs = 1; +static int bcast_mcs_set(const char *val, const struct kernel_param *kp) +{ + int ret; + uint saved = bcast_mcs; + + ret = param_set_uint(val, kp); + if (ret) + return ret; + + if (bcast_mcs > WIL_MCS_MAX || bcast_mcs == 0) { + bcast_mcs = saved; + ret = -EINVAL; + } + + return ret; +} + +static const struct kernel_param_ops bcast_mcs_ops = { + .set = bcast_mcs_set, + .get = param_get_uint, +}; + +module_param_cb(bcast_mcs, &bcast_mcs_ops, &bcast_mcs, 0644); +MODULE_PARM_DESC(bcast_mcs, " MCS index for large bcast TX, default - 1"); + static inline uint wil_rx_snaplen(void) { return rx_align_2 ? 6 : 0; @@ -1783,8 +1837,9 @@ static int __wil_tx_vring(struct wil6210_priv *wil, struct vring *vring, wil_tx_desc_map(d, pa, len, vring_index); if (unlikely(mcast)) { d->mac.d[0] |= BIT(MAC_CFG_DESC_TX_0_MCS_EN_POS); /* MCS 0 */ - if (unlikely(len > WIL_BCAST_MCS0_LIMIT)) /* set MCS 1 */ - d->mac.d[0] |= (1 << MAC_CFG_DESC_TX_0_MCS_INDEX_POS); + if (unlikely(len > bcast_mcs0_limit)) /* use bcast_mcs */ + d->mac.d[0] |= (bcast_mcs << + MAC_CFG_DESC_TX_0_MCS_INDEX_POS); } /* Process TCP/UDP checksum offloading */ if (unlikely(wil_tx_desc_offload_setup(d, skb))) { -- 1.9.1
