2024-04-30 09:14:56

by Tamizh Chelvam Raja

[permalink] [raw]
Subject: [PATCHv4 0/3] wifi: ath12k: Remove unsupported and unused ring configurations

Currently in driver doing memory allocation for tx_monitor,
tcl_cmd_ring and tcl_status ring. Here driver support for
tx_monitor mode is not there and memory for tcl_cmd and tcl_status
rings are allocated by firmware and it uses that memory instead of
host allocated. So avoid these unused ring setup configuration.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Tamizh Chelvam Raja (3):
wifi: ath12k: fix calling correct function for rx monitor mode
wifi: ath12k: Remove unsupported tx monitor handling
wifi: ath12k: Remove unused tcl_*_ring configuration

v4:
* Fixed ath12k-check warnings

v3:
* Addressed Karthikeyan's review comment of modifying
ath12k_dp_tx_htt_rx_monitor_mode_ring_config in correct place.

v2:
* Rebased on top of ToT

drivers/net/wireless/ath/ath12k/dp.c | 16 -------
drivers/net/wireless/ath/ath12k/dp.h | 2 -
drivers/net/wireless/ath/ath12k/dp_mon.c | 40 +---------------
drivers/net/wireless/ath/ath12k/dp_rx.c | 59 +-----------------------
drivers/net/wireless/ath/ath12k/dp_tx.c | 44 +-----------------
drivers/net/wireless/ath/ath12k/dp_tx.h | 3 +-
6 files changed, 4 insertions(+), 160 deletions(-)


base-commit: 861928281f22a08e3d258ebcfe7159d729ec07d4
--
2.34.1



2024-04-30 09:14:59

by Tamizh Chelvam Raja

[permalink] [raw]
Subject: [PATCHv4 3/3] wifi: ath12k: Remove unused tcl_*_ring configuration

Currently memory allocation for multiple hardware rings done
in host as these memory will be used by firmware/hardware.
But in case of tcl_cmd_ring and tcl_status_ring neither firmware
nor hardware uses host allocated memory and it uses memory
allocated by firmware itself. So avoid tcl_cmd_ring and
tcl_status_ring setup in host.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Tamizh Chelvam Raja <[email protected]>
---
drivers/net/wireless/ath/ath12k/dp.c | 16 ----------------
drivers/net/wireless/ath/ath12k/dp.h | 2 --
2 files changed, 18 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/dp.c b/drivers/net/wireless/ath/ath12k/dp.c
index 963b9ad4dc82..d91d5c308210 100644
--- a/drivers/net/wireless/ath/ath12k/dp.c
+++ b/drivers/net/wireless/ath/ath12k/dp.c
@@ -457,8 +457,6 @@ static void ath12k_dp_srng_common_cleanup(struct ath12k_base *ab)
ath12k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_comp_ring);
ath12k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_data_ring);
}
- ath12k_dp_srng_cleanup(ab, &dp->tcl_status_ring);
- ath12k_dp_srng_cleanup(ab, &dp->tcl_cmd_ring);
ath12k_dp_srng_cleanup(ab, &dp->wbm_desc_rel_ring);
}

@@ -479,20 +477,6 @@ static int ath12k_dp_srng_common_setup(struct ath12k_base *ab)
goto err;
}

- ret = ath12k_dp_srng_setup(ab, &dp->tcl_cmd_ring, HAL_TCL_CMD, 0, 0,
- DP_TCL_CMD_RING_SIZE);
- if (ret) {
- ath12k_warn(ab, "failed to set up tcl_cmd ring :%d\n", ret);
- goto err;
- }
-
- ret = ath12k_dp_srng_setup(ab, &dp->tcl_status_ring, HAL_TCL_STATUS,
- 0, 0, DP_TCL_STATUS_RING_SIZE);
- if (ret) {
- ath12k_warn(ab, "failed to set up tcl_status ring :%d\n", ret);
- goto err;
- }
-
for (i = 0; i < ab->hw_params->max_tx_ring; i++) {
map = ab->hw_params->hal_ops->tcl_to_wbm_rbm_map;
tx_comp_ring_num = map[i].wbm_ring_num;
diff --git a/drivers/net/wireless/ath/ath12k/dp.h b/drivers/net/wireless/ath/ath12k/dp.h
index 5cf0d21ef184..21afdb51b6e6 100644
--- a/drivers/net/wireless/ath/ath12k/dp.h
+++ b/drivers/net/wireless/ath/ath12k/dp.h
@@ -327,8 +327,6 @@ struct ath12k_dp {
struct dp_link_desc_bank link_desc_banks[DP_LINK_DESC_BANKS_MAX];
struct dp_srng wbm_idle_ring;
struct dp_srng wbm_desc_rel_ring;
- struct dp_srng tcl_cmd_ring;
- struct dp_srng tcl_status_ring;
struct dp_srng reo_reinject_ring;
struct dp_srng rx_rel_ring;
struct dp_srng reo_except_ring;
--
2.34.1


2024-04-30 09:15:09

by Tamizh Chelvam Raja

[permalink] [raw]
Subject: [PATCHv4 2/3] wifi: ath12k: Remove unsupported tx monitor handling

Currently tx monitor is not supported in driver.So remove
the tx monitor ring configuration, allocation and handling.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Tamizh Chelvam Raja <[email protected]>
---
drivers/net/wireless/ath/ath12k/dp_mon.c | 40 +---------------
drivers/net/wireless/ath/ath12k/dp_rx.c | 59 +-----------------------
drivers/net/wireless/ath/ath12k/dp_tx.c | 42 -----------------
drivers/net/wireless/ath/ath12k/dp_tx.h | 3 +-
4 files changed, 3 insertions(+), 141 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/dp_mon.c b/drivers/net/wireless/ath/ath12k/dp_mon.c
index 6b0b72477540..5c6749bc4039 100644
--- a/drivers/net/wireless/ath/ath12k/dp_mon.c
+++ b/drivers/net/wireless/ath/ath12k/dp_mon.c
@@ -1903,43 +1903,6 @@ ath12k_dp_mon_tx_parse_status_tlv(struct ath12k_base *ab,
break;
}

- case HAL_MON_BUF_ADDR: {
- struct dp_rxdma_mon_ring *buf_ring = &ab->dp.tx_mon_buf_ring;
- struct dp_mon_packet_info *packet_info =
- (struct dp_mon_packet_info *)tlv_data;
- int buf_id = u32_get_bits(packet_info->cookie,
- DP_RXDMA_BUF_COOKIE_BUF_ID);
- struct sk_buff *msdu;
- struct dp_mon_mpdu *mon_mpdu = tx_ppdu_info->tx_mon_mpdu;
- struct ath12k_skb_rxcb *rxcb;
-
- spin_lock_bh(&buf_ring->idr_lock);
- msdu = idr_remove(&buf_ring->bufs_idr, buf_id);
- spin_unlock_bh(&buf_ring->idr_lock);
-
- if (unlikely(!msdu)) {
- ath12k_warn(ab, "monitor destination with invalid buf_id %d\n",
- buf_id);
- return DP_MON_TX_STATUS_PPDU_NOT_DONE;
- }
-
- rxcb = ATH12K_SKB_RXCB(msdu);
- dma_unmap_single(ab->dev, rxcb->paddr,
- msdu->len + skb_tailroom(msdu),
- DMA_FROM_DEVICE);
-
- if (!mon_mpdu->head)
- mon_mpdu->head = msdu;
- else if (mon_mpdu->tail)
- mon_mpdu->tail->next = msdu;
-
- mon_mpdu->tail = msdu;
-
- ath12k_dp_mon_buf_replenish(ab, buf_ring, 1);
- status = DP_MON_TX_BUFFER_ADDR;
- break;
- }
-
case HAL_TX_MPDU_END:
list_add_tail(&tx_ppdu_info->tx_mon_mpdu->list,
&tx_ppdu_info->dp_tx_mon_mpdu_list);
@@ -2088,8 +2051,7 @@ int ath12k_dp_mon_srng_process(struct ath12k *ar, int mac_id, int *budget,
mon_dst_ring = &pdev_dp->rxdma_mon_dst_ring[srng_id];
buf_ring = &dp->rxdma_mon_buf_ring;
} else {
- mon_dst_ring = &pdev_dp->tx_mon_dst_ring[srng_id];
- buf_ring = &dp->tx_mon_buf_ring;
+ return 0;
}

srng = &ab->hal.srng_list[mon_dst_ring->ring_id];
diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c
index 75df622f25d8..a69520d11cb0 100644
--- a/drivers/net/wireless/ath/ath12k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_rx.c
@@ -422,8 +422,6 @@ static int ath12k_dp_rxdma_buf_free(struct ath12k_base *ab)

ath12k_dp_rxdma_mon_buf_ring_free(ab, &dp->rxdma_mon_buf_ring);

- ath12k_dp_rxdma_mon_buf_ring_free(ab, &dp->tx_mon_buf_ring);
-
return 0;
}

@@ -476,15 +474,6 @@ static int ath12k_dp_rxdma_buf_setup(struct ath12k_base *ab)
"failed to setup HAL_RXDMA_MONITOR_BUF\n");
return ret;
}
-
- ret = ath12k_dp_rxdma_mon_ring_buf_setup(ab,
- &dp->tx_mon_buf_ring,
- HAL_TX_MONITOR_BUF);
- if (ret) {
- ath12k_warn(ab,
- "failed to setup HAL_TX_MONITOR_BUF\n");
- return ret;
- }
}

return 0;
@@ -496,10 +485,8 @@ static void ath12k_dp_rx_pdev_srng_free(struct ath12k *ar)
struct ath12k_base *ab = ar->ab;
int i;

- for (i = 0; i < ab->hw_params->num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params->num_rxmda_per_pdev; i++)
ath12k_dp_srng_cleanup(ab, &dp->rxdma_mon_dst_ring[i]);
- ath12k_dp_srng_cleanup(ab, &dp->tx_mon_dst_ring[i]);
- }
}

void ath12k_dp_rx_pdev_reo_cleanup(struct ath12k_base *ab)
@@ -554,17 +541,6 @@ static int ath12k_dp_rx_pdev_srng_alloc(struct ath12k *ar)
"failed to setup HAL_RXDMA_MONITOR_DST\n");
return ret;
}
-
- ret = ath12k_dp_srng_setup(ar->ab,
- &dp->tx_mon_dst_ring[i],
- HAL_TX_MONITOR_DST,
- 0, mac_id + i,
- DP_TX_MONITOR_DEST_RING_SIZE);
- if (ret) {
- ath12k_warn(ar->ab,
- "failed to setup HAL_TX_MONITOR_DST\n");
- return ret;
- }
}

return 0;
@@ -3970,7 +3946,6 @@ void ath12k_dp_rx_free(struct ath12k_base *ab)
ath12k_dp_srng_cleanup(ab, &dp->rxdma_err_dst_ring[i]);

ath12k_dp_srng_cleanup(ab, &dp->rxdma_mon_buf_ring.refill_buf_ring);
- ath12k_dp_srng_cleanup(ab, &dp->tx_mon_buf_ring.refill_buf_ring);

ath12k_dp_rxdma_buf_free(ab);
}
@@ -4113,15 +4088,6 @@ int ath12k_dp_rx_htt_setup(struct ath12k_base *ab)
ret);
return ret;
}
-
- ring_id = dp->tx_mon_buf_ring.refill_buf_ring.ring_id;
- ret = ath12k_dp_tx_htt_srng_setup(ab, ring_id,
- 0, HAL_TX_MONITOR_BUF);
- if (ret) {
- ath12k_warn(ab, "failed to configure rxdma_mon_buf_ring %d\n",
- ret);
- return ret;
- }
}

ret = ab->hw_params->hw_ops->rxdma_ring_sel_config(ab);
@@ -4141,9 +4107,6 @@ int ath12k_dp_rx_alloc(struct ath12k_base *ab)
idr_init(&dp->rxdma_mon_buf_ring.bufs_idr);
spin_lock_init(&dp->rxdma_mon_buf_ring.idr_lock);

- idr_init(&dp->tx_mon_buf_ring.bufs_idr);
- spin_lock_init(&dp->tx_mon_buf_ring.idr_lock);
-
ret = ath12k_dp_srng_setup(ab,
&dp->rx_refill_buf_ring.refill_buf_ring,
HAL_RXDMA_BUF, 0, 0,
@@ -4186,15 +4149,6 @@ int ath12k_dp_rx_alloc(struct ath12k_base *ab)
ath12k_warn(ab, "failed to setup HAL_RXDMA_MONITOR_BUF\n");
return ret;
}
-
- ret = ath12k_dp_srng_setup(ab,
- &dp->tx_mon_buf_ring.refill_buf_ring,
- HAL_TX_MONITOR_BUF, 0, 0,
- DP_TX_MONITOR_BUF_RING_SIZE);
- if (ret) {
- ath12k_warn(ab, "failed to setup DP_TX_MONITOR_BUF_RING_SIZE\n");
- return ret;
- }
}

ret = ath12k_dp_rxdma_buf_setup(ab);
@@ -4234,17 +4188,6 @@ int ath12k_dp_rx_pdev_alloc(struct ath12k_base *ab, int mac_id)
i, ret);
return ret;
}
-
- ring_id = dp->tx_mon_dst_ring[i].ring_id;
- ret = ath12k_dp_tx_htt_srng_setup(ab, ring_id,
- mac_id + i,
- HAL_TX_MONITOR_DST);
- if (ret) {
- ath12k_warn(ab,
- "failed to configure tx_mon_dst_ring %d %d\n",
- i, ret);
- return ret;
- }
}
out:
return 0;
diff --git a/drivers/net/wireless/ath/ath12k/dp_tx.c b/drivers/net/wireless/ath/ath12k/dp_tx.c
index d002de0fd5a1..c8393f002d8e 100644
--- a/drivers/net/wireless/ath/ath12k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath12k/dp_tx.c
@@ -669,14 +669,6 @@ ath12k_dp_tx_get_ring_id_type(struct ath12k_base *ab,
*htt_ring_id = HTT_RXDMA_MONITOR_DESC_RING;
*htt_ring_type = HTT_SW_TO_HW_RING;
break;
- case HAL_TX_MONITOR_BUF:
- *htt_ring_id = HTT_TX_MON_HOST2MON_BUF_RING;
- *htt_ring_type = HTT_SW_TO_HW_RING;
- break;
- case HAL_TX_MONITOR_DST:
- *htt_ring_id = HTT_TX_MON_MON2HOST_DEST_RING;
- *htt_ring_type = HTT_HW_TO_SW_RING;
- break;
default:
ath12k_warn(ab, "Unsupported ring type in DP :%d\n", ring_type);
ret = -EINVAL;
@@ -1044,12 +1036,6 @@ int ath12k_dp_tx_htt_monitor_mode_ring_config(struct ath12k *ar, bool reset)
struct ath12k_base *ab = ar->ab;
int ret;

- ret = ath12k_dp_tx_htt_tx_monitor_mode_ring_config(ar, reset);
- if (ret) {
- ath12k_err(ab, "failed to setup tx monitor filter %d\n", ret);
- return ret;
- }
-
ret = ath12k_dp_tx_htt_rx_monitor_mode_ring_config(ar, reset);
if (ret) {
ath12k_err(ab, "failed to setup rx monitor filter %d\n", ret);
@@ -1209,31 +1195,3 @@ int ath12k_dp_tx_htt_tx_filter_setup(struct ath12k_base *ab, u32 ring_id,
dev_kfree_skb_any(skb);
return ret;
}
-
-int ath12k_dp_tx_htt_tx_monitor_mode_ring_config(struct ath12k *ar, bool reset)
-{
- struct ath12k_base *ab = ar->ab;
- struct ath12k_dp *dp = &ab->dp;
- struct htt_tx_ring_tlv_filter tlv_filter = {0};
- int ret, ring_id;
-
- ring_id = dp->tx_mon_buf_ring.refill_buf_ring.ring_id;
-
- /* TODO: Need to set upstream/downstream tlv filters
- * here
- */
-
- if (ab->hw_params->rxdma1_enable) {
- ret = ath12k_dp_tx_htt_tx_filter_setup(ar->ab, ring_id, 0,
- HAL_TX_MONITOR_BUF,
- DP_RXDMA_REFILL_RING_SIZE,
- &tlv_filter);
- if (ret) {
- ath12k_err(ab,
- "failed to setup filter for monitor buf %d\n", ret);
- return ret;
- }
- }
-
- return 0;
-}
diff --git a/drivers/net/wireless/ath/ath12k/dp_tx.h b/drivers/net/wireless/ath/ath12k/dp_tx.h
index 436d77e5e9ee..7faa81faf6a7 100644
--- a/drivers/net/wireless/ath/ath12k/dp_tx.h
+++ b/drivers/net/wireless/ath/ath12k/dp_tx.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/

#ifndef ATH12K_DP_TX_H
@@ -36,6 +36,5 @@ int ath12k_dp_tx_htt_tx_filter_setup(struct ath12k_base *ab, u32 ring_id,
int mac_id, enum hal_ring_type ring_type,
int tx_buf_size,
struct htt_tx_ring_tlv_filter *htt_tlv_filter);
-int ath12k_dp_tx_htt_tx_monitor_mode_ring_config(struct ath12k *ar, bool reset);
int ath12k_dp_tx_htt_monitor_mode_ring_config(struct ath12k *ar, bool reset);
#endif
--
2.34.1


2024-04-30 19:37:29

by Jeff Johnson

[permalink] [raw]
Subject: Re: [PATCHv4 2/3] wifi: ath12k: Remove unsupported tx monitor handling

On 4/30/2024 2:14 AM, Tamizh Chelvam Raja wrote:
> Currently tx monitor is not supported in driver.So remove

nit: add space after .
Kalle can fix this in pending if there isn't a re-spin

> the tx monitor ring configuration, allocation and handling.
>
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Tamizh Chelvam Raja <[email protected]>
Acked-by: Jeff Johnson <[email protected]>


2024-04-30 19:38:59

by Jeff Johnson

[permalink] [raw]
Subject: Re: [PATCHv4 3/3] wifi: ath12k: Remove unused tcl_*_ring configuration

On 4/30/2024 2:14 AM, Tamizh Chelvam Raja wrote:
> Currently memory allocation for multiple hardware rings done
> in host as these memory will be used by firmware/hardware.
> But in case of tcl_cmd_ring and tcl_status_ring neither firmware
> nor hardware uses host allocated memory and it uses memory
> allocated by firmware itself. So avoid tcl_cmd_ring and
> tcl_status_ring setup in host.
>
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Tamizh Chelvam Raja <[email protected]>
Acked-by: Jeff Johnson <[email protected]>