diff options
| author | Sriram R <srirrama@codeaurora.org> | 2020-03-17 17:07:02 +0530 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-03-18 13:53:37 +0200 |
| commit | 26c79927f12356ef26a6c3c061e2d40e943f254a (patch) | |
| tree | e27e5bd7da68c8f8e1ce615ef05f4c361bbea0f0 /drivers/net/wireless/ath/ath11k/dp.c | |
| parent | fe0ebb51604f190b13b20a5f6c2821772c0cfc22 (diff) | |
ath11k: Configure hash based reo destination ring selection
Current implementation of pdev based reo destination ring
selection is replaced by hash based ring selection so as to
ensure all the available rings are utilized for better performance.
The 4 reo destination rings are selected by the HW based on the
hash value computed from the received packet based on the 5 tuple
{ip src/ip dst/src port/dst port/protocol}. Out of the 32 hash values
used by the hw, the driver assigns 8 values per reo destination ring
to each of the 4 reo destination rings.
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/dp.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/dp.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath11k/dp.c b/drivers/net/wireless/ath/ath11k/dp.c index a1371ab773ab..b8875209f826 100644 --- a/drivers/net/wireless/ath/ath11k/dp.c +++ b/drivers/net/wireless/ath/ath11k/dp.c @@ -218,6 +218,7 @@ static int ath11k_dp_srng_common_setup(struct ath11k_base *ab) struct ath11k_dp *dp = &ab->dp; struct hal_srng *srng; int i, ret; + u32 ring_hash_map; ret = ath11k_dp_srng_setup(ab, &dp->wbm_desc_rel_ring, HAL_SW2WBM_RELEASE, 0, 0, @@ -305,7 +306,21 @@ static int ath11k_dp_srng_common_setup(struct ath11k_base *ab) goto err; } - ath11k_hal_reo_hw_setup(ab); + /* When hash based routing of rx packet is enabled, 32 entries to map + * the hash values to the ring will be configured. Each hash entry uses + * three bits to map to a particular ring. The ring mapping will be + * 0:TCL, 1:SW1, 2:SW2, 3:SW3, 4:SW4, 5:Release, 6:FW and 7:Not used. + */ + ring_hash_map = HAL_HASH_ROUTING_RING_SW1 << 0 | + HAL_HASH_ROUTING_RING_SW2 << 3 | + HAL_HASH_ROUTING_RING_SW3 << 6 | + HAL_HASH_ROUTING_RING_SW4 << 9 | + HAL_HASH_ROUTING_RING_SW1 << 12 | + HAL_HASH_ROUTING_RING_SW2 << 15 | + HAL_HASH_ROUTING_RING_SW3 << 18 | + HAL_HASH_ROUTING_RING_SW4 << 21; + + ath11k_hal_reo_hw_setup(ab, ring_hash_map); return 0; |