diff options
| author | Manikanta Pubbisetty <mpubbise@codeaurora.org> | 2020-03-16 07:37:22 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-03-17 08:35:42 +0200 |
| commit | 1441b2f205a7c78dc2da11b830751b26cb55ae51 (patch) | |
| tree | d4647efb5181da26204b78566a596f25bd2aaa16 /drivers/net/wireless/ath/ath11k/hal_rx.c | |
| parent | 243874c64c8137bc90455200a7735da72836ecab (diff) | |
| download | linux-1441b2f205a7c78dc2da11b830751b26cb55ae51.tar.gz | |
ath11k: enable PN offload
Enabling PN checking in the hardware; hardware checks
the PN of the received packets and reports the errors
to the host for further handling; default action is to
drop such packets. TSC (TKIP sequence counter)
validation is also offloaded.
Hardware validates PN/TSC only for unicast packets;
for group addressed packets, PN validation is done
in mac80211.
PN errors are reported to the driver via WBM RX release
ring and can be dumped by using the following command.
"cat /sys/kernel/debug/ath11k/soc_rx_stats | grep -i pn"
Sample Output:
PN check fail: 210
Signed-off-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/hal_rx.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/hal_rx.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath11k/hal_rx.c b/drivers/net/wireless/ath/ath11k/hal_rx.c index 58c57f91b672..3a666565cd1e 100644 --- a/drivers/net/wireless/ath/ath11k/hal_rx.c +++ b/drivers/net/wireless/ath/ath11k/hal_rx.c @@ -694,7 +694,7 @@ u32 ath11k_hal_reo_qdesc_size(u32 ba_window_size, u8 tid) } void ath11k_hal_reo_qdesc_setup(void *vaddr, int tid, u32 ba_window_size, - u32 start_seq) + u32 start_seq, enum hal_pn_type type) { struct hal_rx_reo_queue *qdesc = (struct hal_rx_reo_queue *)vaddr; struct hal_rx_reo_queue_ext *ext_desc; @@ -723,6 +723,18 @@ void ath11k_hal_reo_qdesc_setup(void *vaddr, int tid, u32 ba_window_size, qdesc->info0 |= FIELD_PREP(HAL_RX_REO_QUEUE_INFO0_BA_WINDOW_SIZE, ba_window_size - 1); + switch (type) { + case HAL_PN_TYPE_NONE: + case HAL_PN_TYPE_WAPI_EVEN: + case HAL_PN_TYPE_WAPI_UNEVEN: + break; + case HAL_PN_TYPE_WPA: + qdesc->info0 |= + FIELD_PREP(HAL_RX_REO_QUEUE_INFO0_PN_CHECK, 1) | + FIELD_PREP(HAL_RX_REO_QUEUE_INFO0_PN_SIZE, + HAL_RX_REO_QUEUE_PN_SIZE_48); + break; + } /* TODO: Set Ignore ampdu flags based on BA window size and/or * AMPDU capabilities |