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qcacmn: Add preamble only PPDU support in monitor mode

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There are some particular PPDUs which have preamble only:
     * NDP frames
     * TB_PPDU frames
Add support to the above frames.

Change-Id: I7022433d3765575eaf28d7baf3a11e8b6ce13890
CRs-Fixed: 2275161
This commit is contained in:
chenguo
2018-07-11 15:34:56 +08:00
committed by nshrivas
parent 8223158f81
commit 1b88046171
4 changed files with 75 additions and 2 deletions
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11
dp/wifi3.0/dp_rx_mon.h
View File

@@ -73,6 +73,17 @@ QDF_STATUS dp_rx_pdev_mon_status_detach(struct dp_pdev *pdev, int mac_id)
uint32_t dp_mon_process(struct dp_soc *soc, uint32_t mac_id, uint32_t quota);
QDF_STATUS dp_rx_mon_deliver(struct dp_soc *soc, uint32_t mac_id,
qdf_nbuf_t head_msdu, qdf_nbuf_t tail_msdu);
/*
* dp_rx_mon_deliver_non_std() - deliver frames for non standard path
* @soc: core txrx main contex
* @mac_id: MAC ID
*
* This function delivers the radio tap and dummy MSDU
* into user layer application for preamble only PPDU.
*
* Return: Operation status
*/
QDF_STATUS dp_rx_mon_deliver_non_std(struct dp_soc *soc, uint32_t mac_id);
uint32_t dp_rxdma_err_process(struct dp_soc *soc, uint32_t mac_id,
uint32_t quota);

60
dp/wifi3.0/dp_rx_mon_dest.c
View File

@@ -29,6 +29,8 @@
#include "wlan_cfg.h"
#include "dp_internal.h"
/* The maxinum buffer length allocated for radio tap */
#define MAX_MONITOR_HEADER (512)
/**
* dp_rx_mon_link_desc_return() - Return a MPDU link descriptor to HW
* (WBM), following error handling
@@ -525,7 +527,6 @@ qdf_nbuf_t dp_rx_mon_restitch_mpdu_from_msdus(struct dp_soc *soc,
* status of the now decapped first msdu. Leave enough headroom for
* accomodating any radio-tap /prism like PHY header
*/
#define MAX_MONITOR_HEADER (512)
mpdu_buf = qdf_nbuf_alloc(soc->osdev,
MAX_MONITOR_HEADER + mpdu_buf_len,
MAX_MONITOR_HEADER, 4, FALSE);
@@ -730,6 +731,63 @@ mon_deliver_fail:
return QDF_STATUS_E_INVAL;
}
/**
* dp_rx_mon_deliver_non_std()
* @soc: core txrx main contex
* @mac_id: MAC ID
*
* This function delivers the radio tap and dummy MSDU
* into user layer application for preamble only PPDU.
*
* Return: QDF_STATUS
*/
QDF_STATUS dp_rx_mon_deliver_non_std(struct dp_soc *soc,
uint32_t mac_id)
{
struct dp_pdev *pdev = dp_get_pdev_for_mac_id(soc, mac_id);
ol_txrx_rx_mon_fp osif_rx_mon;
qdf_nbuf_t dummy_msdu;
/* Sanity checking */
if ((!pdev->monitor_vdev) || (!pdev->monitor_vdev->osif_rx_mon))
goto mon_deliver_non_std_fail;
/* Generate a dummy skb_buff */
osif_rx_mon = pdev->monitor_vdev->osif_rx_mon;
dummy_msdu = qdf_nbuf_alloc(soc->osdev, MAX_MONITOR_HEADER,
MAX_MONITOR_HEADER, 4, FALSE);
if (!dummy_msdu)
goto allocate_dummy_msdu_fail;
qdf_nbuf_set_pktlen(dummy_msdu, 0);
qdf_nbuf_set_next(dummy_msdu, NULL);
pdev->ppdu_info.rx_status.ppdu_id =
pdev->ppdu_info.com_info.ppdu_id;
/* Apply the radio header to this dummy skb */
qdf_nbuf_update_radiotap(&pdev->ppdu_info.rx_status,
dummy_msdu, MAX_MONITOR_HEADER);
/* deliver to the user layer application */
osif_rx_mon(pdev->monitor_vdev->osif_vdev,
dummy_msdu, NULL);
/* Clear rx_status*/
qdf_mem_zero(&pdev->ppdu_info.rx_status,
sizeof(pdev->ppdu_info.rx_status));
pdev->mon_ppdu_status = DP_PPDU_STATUS_START;
return QDF_STATUS_SUCCESS;
allocate_dummy_msdu_fail:
QDF_TRACE_DEBUG_RL(QDF_MODULE_ID_DP, "[%s][%d] mon_skb=%pK ",
__func__, __LINE__, dummy_msdu);
mon_deliver_non_std_fail:
return QDF_STATUS_E_INVAL;
}
/**
* dp_rx_mon_dest_process() - Brain of the Rx processing functionality
* Called from the bottom half (tasklet/NET_RX_SOFTIRQ)

4
dp/wifi3.0/dp_rx_mon_status.c
View File

@@ -407,7 +407,9 @@ dp_rx_mon_status_process_tlv(struct dp_soc *soc, uint32_t mac_id,
qdf_nbuf_free(status_nbuf);
}
if (tlv_status == HAL_TLV_STATUS_PPDU_DONE) {
if (tlv_status == HAL_TLV_STATUS_PPDU_NON_STD_DONE) {
dp_rx_mon_deliver_non_std(soc, mac_id);
} else if (tlv_status == HAL_TLV_STATUS_PPDU_DONE) {
rx_mon_stats->status_ppdu_done++;
if (pdev->enhanced_stats_en ||
pdev->mcopy_mode)

2
hal/wifi3.0/hal_api_mon.h
View File

@@ -73,6 +73,8 @@
#define HAL_TLV_STATUS_PPDU_NOT_DONE 0
#define HAL_TLV_STATUS_PPDU_DONE 1
#define HAL_TLV_STATUS_BUF_DONE 2
#define HAL_TLV_STATUS_PPDU_NON_STD_DONE 3
#define HAL_MAX_UL_MU_USERS 8