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qcacmn: Fix the position of qdf_nbuf_map in Tx DP

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Move the qdf_nbuf_map to correct position before align_pad is
computed for mesh mode header addition

Change-Id: Ia62137daea2ab09e93a86c4b9da681f5591ce947
CRs-Fixes: 2004658
This commit is contained in:
Pamidipati, Vijay 2017-04-02 23:23:41 +05:30 • committed by Sandeep Puligilla
commit 41e34b1ca3
1 changed files with 46 additions and 15 deletions
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61
dp/wifi3.0/dp_tx.c
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@ -126,8 +126,30 @@ dp_tx_desc_release(struct dp_tx_desc_s *tx_desc, uint8_t desc_pool_id)
* dp_tx_htt_metadata_prepare() - Prepare HTT metadata for special frames
* @vdev: DP vdev Handle
* @nbuf: skb
* @align_pad: Alignment Pad bytes to be added in frame header before adding HTT
* metadata
* @align_pad: Alignment Pad bytes to be pushed in headroom before adding
* HTT metadata
*
* |-----------------------------|
* | |
* |-----------------------------| <-----Buffer Pointer Address given
* | | ^ in HW descriptor (aligned)
* | | |
* | HTT Metadata | |
* | | |
* | | | Packet Offset given in descriptor
* | | |
* | | |
* |-----------------------------| |
* | Alignment Pad | v
* |-----------------------------| <----- Actual buffer start address
* | SKB Data | (Unaligned)
* | |
* | |
* | |
* | |
* | |
* | |
* |-----------------------------|
*
* Prepares and fills HTT metadata in the frame pre-header for special frames
* that should be transmitted using varying transmit parameters.
@ -157,15 +179,25 @@ static uint8_t dp_tx_prepare_htt_metadata(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
htt_desc_size = sizeof(struct htt_tx_msdu_desc_ext2_t);
if (vdev->mesh_vdev) {
/* Fill and add HTT metaheader */
hdr = qdf_nbuf_push_head(nbuf, htt_desc_size + align_pad);
qdf_mem_copy(hdr, desc_ext, htt_desc_size);
if (qdf_unlikely(QDF_STATUS_SUCCESS !=
qdf_nbuf_map_nbytes_single(
vdev->pdev->soc->osdev, nbuf,
QDF_DMA_TO_DEVICE,
(htt_desc_size + align_pad)))) {
/* Handle failure */
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"htt qdf_nbuf_map failed\n");
return 0;
}
} else if (vdev->opmode == wlan_op_mode_ocb) {
/* Todo - Add support for DSRC */
}
return htt_desc_size;
@ -183,7 +215,6 @@ static void dp_tx_prepare_tso_ext_desc(struct qdf_tso_seg_t *tso_seg,
void *ext_desc)
{
uint8_t num_frag;
uint32_t *buf_ptr;
uint32_t tso_flags;
/*
@ -403,6 +434,15 @@ struct dp_tx_desc_s *dp_tx_prepare_desc_single(struct dp_vdev *vdev,
tx_desc->pdev = pdev;
tx_desc->msdu_ext_desc = NULL;
if (qdf_unlikely(QDF_STATUS_SUCCESS !=
qdf_nbuf_map(soc->osdev, nbuf,
QDF_DMA_TO_DEVICE))) {
/* Handle failure */
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"qdf_nbuf_map failed\n");
goto failure;
}
align_pad = ((unsigned long) qdf_nbuf_mapped_paddr_get(nbuf)) & 0x7;
tx_desc->pkt_offset = align_pad;
@ -439,15 +479,6 @@ struct dp_tx_desc_s *dp_tx_prepare_desc_single(struct dp_vdev *vdev,
qdf_atomic_inc(&pdev->num_tx_exception);
}
if (qdf_unlikely(QDF_STATUS_SUCCESS !=
qdf_nbuf_map(soc->osdev, nbuf,
QDF_DMA_TO_DEVICE))) {
/* Handle failure */
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"qdf_nbuf_map failed\n");
goto failure;
}
return tx_desc;
failure: