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path: root/drivers/net/wireless/ath/ath11k/dp_rx.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath11k/dp_rx.c')
-rw-r--r--drivers/net/wireless/ath/ath11k/dp_rx.c104
1 files changed, 84 insertions, 20 deletions
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index afd481f5858f..198fb359a688 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/ieee80211.h>
@@ -311,7 +311,7 @@ static void ath11k_dp_service_mon_ring(struct timer_list *t)
struct ath11k_base *ab = from_timer(ab, t, mon_reap_timer);
int i;
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++)
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++)
ath11k_dp_rx_process_mon_rings(ab, i, NULL, DP_MON_SERVICE_BUDGET);
mod_timer(&ab->mon_reap_timer, jiffies +
@@ -324,7 +324,7 @@ static int ath11k_dp_purge_mon_ring(struct ath11k_base *ab)
unsigned long timeout = jiffies + msecs_to_jiffies(DP_MON_PURGE_TIMEOUT_MS);
do {
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++)
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++)
reaped += ath11k_dp_rx_process_mon_rings(ab, i,
NULL,
DP_MON_SERVICE_BUDGET);
@@ -468,7 +468,7 @@ static int ath11k_dp_rxdma_pdev_buf_free(struct ath11k *ar)
rx_ring = &dp->rxdma_mon_buf_ring;
ath11k_dp_rxdma_buf_ring_free(ar, rx_ring);
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
rx_ring = &dp->rx_mon_status_refill_ring[i];
ath11k_dp_rxdma_buf_ring_free(ar, rx_ring);
}
@@ -506,7 +506,7 @@ static int ath11k_dp_rxdma_pdev_buf_setup(struct ath11k *ar)
ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_MONITOR_BUF);
}
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
rx_ring = &dp->rx_mon_status_refill_ring[i];
ath11k_dp_rxdma_ring_buf_setup(ar, rx_ring, HAL_RXDMA_MONITOR_STATUS);
}
@@ -522,7 +522,7 @@ static void ath11k_dp_rx_pdev_srng_free(struct ath11k *ar)
ath11k_dp_srng_cleanup(ab, &dp->rx_refill_buf_ring.refill_buf_ring);
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
if (ab->hw_params.rx_mac_buf_ring)
ath11k_dp_srng_cleanup(ab, &dp->rx_mac_buf_ring[i]);
@@ -585,7 +585,7 @@ static int ath11k_dp_rx_pdev_srng_alloc(struct ath11k *ar)
}
if (ar->ab->hw_params.rx_mac_buf_ring) {
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
ret = ath11k_dp_srng_setup(ar->ab,
&dp->rx_mac_buf_ring[i],
HAL_RXDMA_BUF, 1,
@@ -598,7 +598,7 @@ static int ath11k_dp_rx_pdev_srng_alloc(struct ath11k *ar)
}
}
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
ret = ath11k_dp_srng_setup(ar->ab, &dp->rxdma_err_dst_ring[i],
HAL_RXDMA_DST, 0, dp->mac_id + i,
DP_RXDMA_ERR_DST_RING_SIZE);
@@ -608,7 +608,7 @@ static int ath11k_dp_rx_pdev_srng_alloc(struct ath11k *ar)
}
}
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
srng = &dp->rx_mon_status_refill_ring[i].refill_buf_ring;
ret = ath11k_dp_srng_setup(ar->ab,
srng,
@@ -2990,11 +2990,52 @@ ath11k_dp_rx_mon_update_status_buf_state(struct ath11k_mon_data *pmon,
}
}
+static enum dp_mon_status_buf_state
+ath11k_dp_rx_mon_buf_done(struct ath11k_base *ab, struct hal_srng *srng,
+ struct dp_rxdma_ring *rx_ring)
+{
+ struct ath11k_skb_rxcb *rxcb;
+ struct hal_tlv_hdr *tlv;
+ struct sk_buff *skb;
+ void *status_desc;
+ dma_addr_t paddr;
+ u32 cookie;
+ int buf_id;
+ u8 rbm;
+
+ status_desc = ath11k_hal_srng_src_next_peek(ab, srng);
+ if (!status_desc)
+ return DP_MON_STATUS_NO_DMA;
+
+ ath11k_hal_rx_buf_addr_info_get(status_desc, &paddr, &cookie, &rbm);
+
+ buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, cookie);
+
+ spin_lock_bh(&rx_ring->idr_lock);
+ skb = idr_find(&rx_ring->bufs_idr, buf_id);
+ spin_unlock_bh(&rx_ring->idr_lock);
+
+ if (!skb)
+ return DP_MON_STATUS_NO_DMA;
+
+ rxcb = ATH11K_SKB_RXCB(skb);
+ dma_sync_single_for_cpu(ab->dev, rxcb->paddr,
+ skb->len + skb_tailroom(skb),
+ DMA_FROM_DEVICE);
+
+ tlv = (struct hal_tlv_hdr *)skb->data;
+ if (FIELD_GET(HAL_TLV_HDR_TAG, tlv->tl) != HAL_RX_STATUS_BUFFER_DONE)
+ return DP_MON_STATUS_NO_DMA;
+
+ return DP_MON_STATUS_REPLINISH;
+}
+
static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id,
int *budget, struct sk_buff_head *skb_list)
{
struct ath11k *ar;
const struct ath11k_hw_hal_params *hal_params;
+ enum dp_mon_status_buf_state reap_status;
struct ath11k_pdev_dp *dp;
struct dp_rxdma_ring *rx_ring;
struct ath11k_mon_data *pmon;
@@ -3057,15 +3098,38 @@ static int ath11k_dp_rx_reap_mon_status_ring(struct ath11k_base *ab, int mac_id,
ath11k_warn(ab, "mon status DONE not set %lx, buf_id %d\n",
FIELD_GET(HAL_TLV_HDR_TAG,
tlv->tl), buf_id);
- /* If done status is missing, hold onto status
- * ring until status is done for this status
- * ring buffer.
- * Keep HP in mon_status_ring unchanged,
- * and break from here.
- * Check status for same buffer for next time
+ /* RxDMA status done bit might not be set even
+ * though tp is moved by HW.
*/
- pmon->buf_state = DP_MON_STATUS_NO_DMA;
- break;
+
+ /* If done status is missing:
+ * 1. As per MAC team's suggestion,
+ * when HP + 1 entry is peeked and if DMA
+ * is not done and if HP + 2 entry's DMA done
+ * is set. skip HP + 1 entry and
+ * start processing in next interrupt.
+ * 2. If HP + 2 entry's DMA done is not set,
+ * poll onto HP + 1 entry DMA done to be set.
+ * Check status for same buffer for next time
+ * dp_rx_mon_status_srng_process
+ */
+
+ reap_status = ath11k_dp_rx_mon_buf_done(ab, srng,
+ rx_ring);
+ if (reap_status == DP_MON_STATUS_NO_DMA)
+ continue;
+
+ spin_lock_bh(&rx_ring->idr_lock);
+ idr_remove(&rx_ring->bufs_idr, buf_id);
+ spin_unlock_bh(&rx_ring->idr_lock);
+
+ dma_unmap_single(ab->dev, rxcb->paddr,
+ skb->len + skb_tailroom(skb),
+ DMA_FROM_DEVICE);
+
+ dev_kfree_skb_any(skb);
+ pmon->buf_state = DP_MON_STATUS_REPLINISH;
+ goto move_next;
}
spin_lock_bh(&rx_ring->idr_lock);
@@ -4391,7 +4455,7 @@ int ath11k_dp_rx_pdev_alloc(struct ath11k_base *ab, int mac_id)
}
if (ab->hw_params.rx_mac_buf_ring) {
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
ring_id = dp->rx_mac_buf_ring[i].ring_id;
ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id,
mac_id + i, HAL_RXDMA_BUF);
@@ -4403,7 +4467,7 @@ int ath11k_dp_rx_pdev_alloc(struct ath11k_base *ab, int mac_id)
}
}
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
ring_id = dp->rxdma_err_dst_ring[i].ring_id;
ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id,
mac_id + i, HAL_RXDMA_DST);
@@ -4443,7 +4507,7 @@ int ath11k_dp_rx_pdev_alloc(struct ath11k_base *ab, int mac_id)
}
config_refill_ring:
- for (i = 0; i < ab->hw_params.num_rxmda_per_pdev; i++) {
+ for (i = 0; i < ab->hw_params.num_rxdma_per_pdev; i++) {
ring_id = dp->rx_mon_status_refill_ring[i].refill_buf_ring.ring_id;
ret = ath11k_dp_tx_htt_srng_setup(ab, ring_id, mac_id + i,
HAL_RXDMA_MONITOR_STATUS);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 20:16:43 +0000