Tx descriptor search index field should be updated with hw peer id
and not by AST Hash as per the HW/FW recommendation. Incorrect search
index causes throughput degradation in all scenario for all the
platforms. so updated the search index field with hw peer id, which
is a common change applicable for all the platforms. Also no need of these
configuration for non station type. seen 10% throughput increase in WDS
traffic with this change.
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1
Signed-off-by: Karthikeyan Periyasamy <[email protected]>
---
v2:
- updated the commit message with more details
drivers/net/wireless/ath/ath11k/core.h | 1 +
drivers/net/wireless/ath/ath11k/dp_rx.c | 8 ++++++--
drivers/net/wireless/ath/ath11k/dp_tx.c | 1 +
drivers/net/wireless/ath/ath11k/hal_tx.c | 2 ++
drivers/net/wireless/ath/ath11k/hal_tx.h | 1 +
drivers/net/wireless/ath/ath11k/peer.c | 9 +++++++--
drivers/net/wireless/ath/ath11k/peer.h | 3 ++-
7 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 9db375b..8d29845 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -200,6 +200,7 @@ struct ath11k_vif {
u32 beacon_interval;
u32 dtim_period;
u16 ast_hash;
+ u16 ast_idx;
u16 tcl_metadata;
u8 hal_addr_search_flags;
u8 search_type;
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 42328a0..2d90b80 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1652,6 +1652,7 @@ void ath11k_dp_htt_htc_t2h_msg_handler(struct ath11k_base *ab,
u8 mac_addr[ETH_ALEN];
u16 peer_mac_h16;
u16 ast_hash;
+ u16 hw_peer_id;
ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "dp_htt rx msg type :0x%0x\n", type);
@@ -1672,7 +1673,7 @@ void ath11k_dp_htt_htc_t2h_msg_handler(struct ath11k_base *ab,
resp->peer_map_ev.info1);
ath11k_dp_get_mac_addr(resp->peer_map_ev.mac_addr_l32,
peer_mac_h16, mac_addr);
- ath11k_peer_map_event(ab, vdev_id, peer_id, mac_addr, 0);
+ ath11k_peer_map_event(ab, vdev_id, peer_id, mac_addr, 0, 0);
break;
case HTT_T2H_MSG_TYPE_PEER_MAP2:
vdev_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO_VDEV_ID,
@@ -1685,7 +1686,10 @@ void ath11k_dp_htt_htc_t2h_msg_handler(struct ath11k_base *ab,
peer_mac_h16, mac_addr);
ast_hash = FIELD_GET(HTT_T2H_PEER_MAP_INFO2_AST_HASH_VAL,
resp->peer_map_ev.info2);
- ath11k_peer_map_event(ab, vdev_id, peer_id, mac_addr, ast_hash);
+ hw_peer_id = FIELD_GET(HTT_T2H_PEER_MAP_INFO1_HW_PEER_ID,
+ resp->peer_map_ev.info1);
+ ath11k_peer_map_event(ab, vdev_id, peer_id, mac_addr, ast_hash,
+ hw_peer_id);
break;
case HTT_T2H_MSG_TYPE_PEER_UNMAP:
case HTT_T2H_MSG_TYPE_PEER_UNMAP2:
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c
index 6a3fcea..1a0b9be 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -165,6 +165,7 @@ int ath11k_dp_tx(struct ath11k *ar, struct ath11k_vif *arvif,
ti.pkt_offset = 0;
ti.lmac_id = ar->lmac_id;
ti.bss_ast_hash = arvif->ast_hash;
+ ti.bss_ast_idx = arvif->ast_idx;
ti.dscp_tid_tbl_idx = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL &&
diff --git a/drivers/net/wireless/ath/ath11k/hal_tx.c b/drivers/net/wireless/ath/ath11k/hal_tx.c
index a755aa8..569e790 100644
--- a/drivers/net/wireless/ath/ath11k/hal_tx.c
+++ b/drivers/net/wireless/ath/ath11k/hal_tx.c
@@ -71,6 +71,8 @@ void ath11k_hal_tx_cmd_desc_setup(struct ath11k_base *ab, void *cmd,
tcl_cmd->info3 = FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_DSCP_TID_TABLE_IDX,
ti->dscp_tid_tbl_idx) |
FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_SEARCH_INDEX,
+ ti->bss_ast_idx) |
+ FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_CACHE_SET_NUM,
ti->bss_ast_hash);
tcl_cmd->info4 = 0;
}
diff --git a/drivers/net/wireless/ath/ath11k/hal_tx.h b/drivers/net/wireless/ath/ath11k/hal_tx.h
index d4760a2..c291e59 100644
--- a/drivers/net/wireless/ath/ath11k/hal_tx.h
+++ b/drivers/net/wireless/ath/ath11k/hal_tx.h
@@ -29,6 +29,7 @@ struct hal_tx_info {
u32 flags1; /* %HAL_TCL_DATA_CMD_INFO2_ */
u16 addr_search_flags; /* %HAL_TCL_DATA_CMD_INFO0_ADDR(X/Y)_ */
u16 bss_ast_hash;
+ u16 bss_ast_idx;
u8 tid;
u8 search_type; /* %HAL_TX_ADDR_SEARCH_ */
u8 lmac_id;
diff --git a/drivers/net/wireless/ath/ath11k/peer.c b/drivers/net/wireless/ath/ath11k/peer.c
index b69e7eb..f49abefa 100644
--- a/drivers/net/wireless/ath/ath11k/peer.c
+++ b/drivers/net/wireless/ath/ath11k/peer.c
@@ -118,7 +118,7 @@ void ath11k_peer_unmap_event(struct ath11k_base *ab, u16 peer_id)
}
void ath11k_peer_map_event(struct ath11k_base *ab, u8 vdev_id, u16 peer_id,
- u8 *mac_addr, u16 ast_hash)
+ u8 *mac_addr, u16 ast_hash, u16 hw_peer_id)
{
struct ath11k_peer *peer;
@@ -132,6 +132,7 @@ void ath11k_peer_map_event(struct ath11k_base *ab, u8 vdev_id, u16 peer_id,
peer->vdev_id = vdev_id;
peer->peer_id = peer_id;
peer->ast_hash = ast_hash;
+ peer->hw_peer_id = hw_peer_id;
ether_addr_copy(peer->addr, mac_addr);
list_add(&peer->list, &ab->peers);
wake_up(&ab->peer_mapping_wq);
@@ -309,7 +310,11 @@ int ath11k_peer_create(struct ath11k *ar, struct ath11k_vif *arvif,
peer->pdev_idx = ar->pdev_idx;
peer->sta = sta;
- arvif->ast_hash = peer->ast_hash;
+
+ if (arvif->vif->type == NL80211_IFTYPE_STATION) {
+ arvif->ast_hash = peer->ast_hash;
+ arvif->ast_idx = peer->hw_peer_id;
+ }
peer->sec_type = HAL_ENCRYPT_TYPE_OPEN;
peer->sec_type_grp = HAL_ENCRYPT_TYPE_OPEN;
diff --git a/drivers/net/wireless/ath/ath11k/peer.h b/drivers/net/wireless/ath/ath11k/peer.h
index 8553ed0..619db00 100644
--- a/drivers/net/wireless/ath/ath11k/peer.h
+++ b/drivers/net/wireless/ath/ath11k/peer.h
@@ -14,6 +14,7 @@ struct ath11k_peer {
int peer_id;
u16 ast_hash;
u8 pdev_idx;
+ u16 hw_peer_id;
/* protected by ab->data_lock */
struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
@@ -31,7 +32,7 @@ struct ath11k_peer {
void ath11k_peer_unmap_event(struct ath11k_base *ab, u16 peer_id);
void ath11k_peer_map_event(struct ath11k_base *ab, u8 vdev_id, u16 peer_id,
- u8 *mac_addr, u16 ast_hash);
+ u8 *mac_addr, u16 ast_hash, u16 hw_peer_id);
struct ath11k_peer *ath11k_peer_find(struct ath11k_base *ab, int vdev_id,
const u8 *addr);
struct ath11k_peer *ath11k_peer_find_by_addr(struct ath11k_base *ab,
--
2.7.4
On 2/3/21 7:56 PM, Karthikeyan Periyasamy wrote:
> Tx descriptor search index field should be updated with hw peer id
> and not by AST Hash as per the HW/FW recommendation. Incorrect search
> index causes throughput degradation in all scenario for all the
> platforms. so updated the search index field with hw peer id, which
> is a common change applicable for all the platforms. Also no need of these
> configuration for non station type. seen 10% throughput increase in WDS
> traffic with this change.
>
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Karthikeyan Periyasamy <[email protected]>
Thank you for the details.
Peter
Peter Oh <[email protected]> writes:
> On 2/3/21 7:56 PM, Karthikeyan Periyasamy wrote:
>> Tx descriptor search index field should be updated with hw peer id
>> and not by AST Hash as per the HW/FW recommendation. Incorrect search
>> index causes throughput degradation in all scenario for all the
>> platforms. so updated the search index field with hw peer id, which
>> is a common change applicable for all the platforms. Also no need of these
>> configuration for non station type. seen 10% throughput increase in WDS
>> traffic with this change.
>>
>> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1
>>
>> Signed-off-by: Karthikeyan Periyasamy <[email protected]>
>
> Thank you for the details.
BTW after you have reviewed the patch, and you think the patch is ok,
you could reply with:
Reviewed-by: Peter Oh <[email protected]>
Patchwork automatically picks up that and then it would be an indication
for me that the patch is ready to be applied. I like the Reviewed-by tag
a lot as then I can see that others have also reviewed the patch.
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
Karthikeyan Periyasamy <[email protected]> wrote:
> Tx descriptor search index field should be updated with hw peer id
> and not by AST Hash as per the HW/FW recommendation. Incorrect search
> index causes throughput degradation in all scenario for all the
> platforms. so updated the search index field with hw peer id, which
> is a common change applicable for all the platforms. Also no need of these
> configuration for non station type. seen 10% throughput increase in WDS
> traffic with this change.
>
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Karthikeyan Periyasamy <[email protected]>
> Signed-off-by: Kalle Valo <[email protected]>
Patch applied to ath-next branch of ath.git, thanks.
4b965be536ee ath11k: Update tx descriptor search index properly
--
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches