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qcacmn: Restrict DMA Map/UnMap upto skb tail

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Restrict DMA Map/UnMap upto tail of the packet during transmission
and transmit completion.

Change-Id: I5659d1bff967e529bb4408b5a7be5e6737726a32
This commit is contained in:
Radha Krishna Simha Jiguru
2020-03-26 10:47:26 +05:30
committed by nshrivas
parent 67f4d02569
commit 1167fc9bd4
1 changed files with 25 additions and 13 deletions
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38
dp/wifi3.0/dp_tx.c
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@@ -1005,8 +1005,11 @@ static qdf_nbuf_t dp_tx_prepare_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
for (curr_nbuf = nbuf, i = 0; curr_nbuf; for (curr_nbuf = nbuf, i = 0; curr_nbuf;
curr_nbuf = qdf_nbuf_next(curr_nbuf), i++) { curr_nbuf = qdf_nbuf_next(curr_nbuf), i++) {
if (QDF_STATUS_SUCCESS != qdf_nbuf_map(vdev->osdev, curr_nbuf, if (QDF_STATUS_SUCCESS !=
QDF_DMA_TO_DEVICE)) { qdf_nbuf_map_nbytes_single(vdev->osdev,
curr_nbuf,
QDF_DMA_TO_DEVICE,
curr_nbuf->len)) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"%s dma map error ", __func__); "%s dma map error ", __func__);
DP_STATS_INC(vdev, tx_i.raw.dma_map_error, 1); DP_STATS_INC(vdev, tx_i.raw.dma_map_error, 1);
@@ -1038,7 +1041,9 @@ error:
while (nbuf) { while (nbuf) {
curr_nbuf = nbuf; curr_nbuf = nbuf;
if (i < mapped_buf_num) { if (i < mapped_buf_num) {
qdf_nbuf_unmap(vdev->osdev, curr_nbuf, QDF_DMA_TO_DEVICE); qdf_nbuf_unmap_nbytes_single(vdev->osdev, curr_nbuf,
QDF_DMA_TO_DEVICE,
curr_nbuf->len);
i++; i++;
} }
nbuf = qdf_nbuf_next(nbuf); nbuf = qdf_nbuf_next(nbuf);
@@ -1063,7 +1068,9 @@ static void dp_tx_raw_prepare_unset(struct dp_soc *soc,
qdf_nbuf_t cur_nbuf = nbuf; qdf_nbuf_t cur_nbuf = nbuf;
do { do {
qdf_nbuf_unmap(soc->osdev, cur_nbuf, QDF_DMA_TO_DEVICE); qdf_nbuf_unmap_nbytes_single(soc->osdev, cur_nbuf,
QDF_DMA_TO_DEVICE,
cur_nbuf->len);
cur_nbuf = qdf_nbuf_next(cur_nbuf); cur_nbuf = qdf_nbuf_next(cur_nbuf);
} while (cur_nbuf); } while (cur_nbuf);
} }
@@ -1655,9 +1662,9 @@ dp_tx_send_msdu_single(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
HTT_TX_TCL_METADATA_VALID_HTT_SET(htt_tcl_metadata, 1); HTT_TX_TCL_METADATA_VALID_HTT_SET(htt_tcl_metadata, 1);
} }
if (qdf_unlikely(qdf_nbuf_map(soc->osdev, nbuf, if (qdf_unlikely(QDF_STATUS_SUCCESS !=
QDF_DMA_TO_DEVICE) qdf_nbuf_map_nbytes_single(vdev->osdev, nbuf,
!= QDF_STATUS_SUCCESS)) { QDF_DMA_TO_DEVICE, nbuf->len))) {
/* Handle failure */ /* Handle failure */
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"qdf_nbuf_map failed"); "qdf_nbuf_map failed");
@@ -1674,7 +1681,9 @@ dp_tx_send_msdu_single(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"%s Tx_hw_enqueue Fail tx_desc %pK queue %d", "%s Tx_hw_enqueue Fail tx_desc %pK queue %d",
__func__, tx_desc, tx_q->ring_id); __func__, tx_desc, tx_q->ring_id);
qdf_nbuf_unmap(vdev->osdev, nbuf, QDF_DMA_TO_DEVICE); qdf_nbuf_unmap_nbytes_single(vdev->osdev, nbuf,
QDF_DMA_TO_DEVICE,
nbuf->len);
drop_code = TX_HW_ENQUEUE; drop_code = TX_HW_ENQUEUE;
goto release_desc; goto release_desc;
} }
@@ -1866,8 +1875,9 @@ static qdf_nbuf_t dp_tx_prepare_sg(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
sg_info = &msdu_info->u.sg_info; sg_info = &msdu_info->u.sg_info;
nr_frags = qdf_nbuf_get_nr_frags(nbuf); nr_frags = qdf_nbuf_get_nr_frags(nbuf);
if (QDF_STATUS_SUCCESS != qdf_nbuf_map(vdev->osdev, nbuf, if (QDF_STATUS_SUCCESS !=
QDF_DMA_TO_DEVICE)) { qdf_nbuf_map_nbytes_single(vdev->osdev, nbuf,
QDF_DMA_TO_DEVICE, nbuf->len)) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR, QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"dma map error"); "dma map error");
DP_STATS_INC(vdev, tx_i.sg.dma_map_error, 1); DP_STATS_INC(vdev, tx_i.sg.dma_map_error, 1);
@@ -2772,7 +2782,8 @@ static inline void dp_tx_comp_free_buf(struct dp_soc *soc,
} }
} }
qdf_nbuf_unmap(soc->osdev, nbuf, QDF_DMA_TO_DEVICE); qdf_nbuf_unmap_nbytes_single(vdev->osdev, nbuf,
QDF_DMA_TO_DEVICE, nbuf->len);
if (qdf_unlikely(!vdev)) { if (qdf_unlikely(!vdev)) {
qdf_nbuf_free(nbuf); qdf_nbuf_free(nbuf);
@@ -3220,8 +3231,9 @@ dp_tx_comp_process_desc(struct dp_soc *soc,
peer, ts, peer, ts,
desc->nbuf, desc->nbuf,
time_latency)) { time_latency)) {
qdf_nbuf_unmap(soc->osdev, desc->nbuf, qdf_nbuf_unmap_nbytes_single(soc->osdev, desc->nbuf,
QDF_DMA_TO_DEVICE); QDF_DMA_TO_DEVICE,
desc->nbuf->len);
dp_send_completion_to_stack(soc, dp_send_completion_to_stack(soc,
desc->pdev, desc->pdev,
ts->peer_id, ts->peer_id,