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qcacmn: fast TX API and registration

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This is a new FAST TX API which avoids various checks.
This API will be called when SFE tags a pkt as fast_forwarded
and vap's fast_tx flag is set.

avoid additional re-checks in the wifi TX function

CRs-Fixed: 3218650
Change-Id: Iba17ede59652a1ff2af553f57de21dc58946298e
This commit is contained in:
Tallapragada Kalyan
2022-06-09 06:35:50 +05:30
committed by Madan Koyyalamudi
parent f6060a9296
commit 1b1b3adbea
13 changed files with 394 additions and 162 deletions
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149
dp/wifi3.0/dp_tx.c
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@@ -120,150 +120,6 @@ uint8_t sec_type_map[MAX_CDP_SEC_TYPE] = {HAL_TX_ENCRYPT_TYPE_NO_CIPHER,
HAL_TX_ENCRYPT_TYPE_WAPI_GCM_SM4};
qdf_export_symbol(sec_type_map);
#ifdef CONFIG_WLAN_SYSFS_MEM_STATS
/**
* dp_update_tx_desc_stats - Update the increase or decrease in
* outstanding tx desc count
* values on pdev and soc
* @vdev: DP pdev handle
*
* Return: void
*/
static inline void
dp_update_tx_desc_stats(struct dp_pdev *pdev)
{
int32_t tx_descs_cnt =
qdf_atomic_read(&pdev->num_tx_outstanding);
if (pdev->tx_descs_max < tx_descs_cnt)
pdev->tx_descs_max = tx_descs_cnt;
qdf_mem_tx_desc_cnt_update(pdev->num_tx_outstanding,
pdev->tx_descs_max);
}
#else /* CONFIG_WLAN_SYSFS_MEM_STATS */
static inline void
dp_update_tx_desc_stats(struct dp_pdev *pdev)
{
}
#endif /* CONFIG_WLAN_SYSFS_MEM_STATS */
#ifdef QCA_TX_LIMIT_CHECK
/**
* dp_tx_limit_check - Check if allocated tx descriptors reached
* soc max limit and pdev max limit
* @vdev: DP vdev handle
*
* Return: true if allocated tx descriptors reached max configured value, else
* false
*/
static inline bool
dp_tx_limit_check(struct dp_vdev *vdev)
{
struct dp_pdev *pdev = vdev->pdev;
struct dp_soc *soc = pdev->soc;
if (qdf_atomic_read(&soc->num_tx_outstanding) >=
soc->num_tx_allowed) {
dp_tx_info("queued packets are more than max tx, drop the frame");
DP_STATS_INC(vdev, tx_i.dropped.desc_na.num, 1);
return true;
}
if (qdf_atomic_read(&pdev->num_tx_outstanding) >=
pdev->num_tx_allowed) {
dp_tx_info("queued packets are more than max tx, drop the frame");
DP_STATS_INC(vdev, tx_i.dropped.desc_na.num, 1);
DP_STATS_INC(vdev, tx_i.dropped.desc_na_exc_outstand.num, 1);
return true;
}
return false;
}
/**
* dp_tx_exception_limit_check - Check if allocated tx exception descriptors
* reached soc max limit
* @vdev: DP vdev handle
*
* Return: true if allocated tx descriptors reached max configured value, else
* false
*/
static inline bool
dp_tx_exception_limit_check(struct dp_vdev *vdev)
{
struct dp_pdev *pdev = vdev->pdev;
struct dp_soc *soc = pdev->soc;
if (qdf_atomic_read(&soc->num_tx_exception) >=
soc->num_msdu_exception_desc) {
dp_info("exc packets are more than max drop the exc pkt");
DP_STATS_INC(vdev, tx_i.dropped.exc_desc_na.num, 1);
return true;
}
return false;
}
/**
* dp_tx_outstanding_inc - Increment outstanding tx desc values on pdev and soc
* @vdev: DP pdev handle
*
* Return: void
*/
static inline void
dp_tx_outstanding_inc(struct dp_pdev *pdev)
{
struct dp_soc *soc = pdev->soc;
qdf_atomic_inc(&pdev->num_tx_outstanding);
qdf_atomic_inc(&soc->num_tx_outstanding);
dp_update_tx_desc_stats(pdev);
}
/**
* dp_tx_outstanding__dec - Decrement outstanding tx desc values on pdev and soc
* @vdev: DP pdev handle
*
* Return: void
*/
static inline void
dp_tx_outstanding_dec(struct dp_pdev *pdev)
{
struct dp_soc *soc = pdev->soc;
qdf_atomic_dec(&pdev->num_tx_outstanding);
qdf_atomic_dec(&soc->num_tx_outstanding);
dp_update_tx_desc_stats(pdev);
}
#else //QCA_TX_LIMIT_CHECK
static inline bool
dp_tx_limit_check(struct dp_vdev *vdev)
{
return false;
}
static inline bool
dp_tx_exception_limit_check(struct dp_vdev *vdev)
{
return false;
}
static inline void
dp_tx_outstanding_inc(struct dp_pdev *pdev)
{
qdf_atomic_inc(&pdev->num_tx_outstanding);
dp_update_tx_desc_stats(pdev);
}
static inline void
dp_tx_outstanding_dec(struct dp_pdev *pdev)
{
qdf_atomic_dec(&pdev->num_tx_outstanding);
dp_update_tx_desc_stats(pdev);
}
#endif //QCA_TX_LIMIT_CHECK
#ifdef WLAN_FEATURE_DP_TX_DESC_HISTORY
static inline enum dp_tx_event_type dp_tx_get_event_type(uint32_t flags)
{
@@ -1288,6 +1144,7 @@ struct dp_tx_desc_s *dp_tx_prepare_desc_single(struct dp_vdev *vdev,
tx_desc->msdu_ext_desc = NULL;
tx_desc->pkt_offset = 0;
tx_desc->length = qdf_nbuf_headlen(nbuf);
tx_desc->shinfo_addr = skb_end_pointer(nbuf);
dp_tx_trace_pkt(soc, nbuf, tx_desc->id, vdev->vdev_id);
@@ -3616,6 +3473,8 @@ qdf_nbuf_t dp_tx_send(struct cdp_soc_t *soc_hdl, uint8_t vdev_id,
* to minimize lock contention for these resources.
*/
dp_tx_get_queue(vdev, nbuf, &msdu_info.tx_queue);
DP_STATS_INC(vdev, tx_i.rcvd_per_core[msdu_info.tx_queue.desc_pool_id],
1);
/*
* TCL H/W supports 2 DSCP-TID mapping tables.
@@ -5100,11 +4959,11 @@ void dp_tx_prefetch_next_nbuf_data(struct dp_tx_desc_s *next)
nbuf = next->nbuf;
if (nbuf) {
/* prefetch skb->next and first few bytes of skb->cb */
qdf_prefetch(next->shinfo_addr);
qdf_prefetch(nbuf);
/* prefetch skb fields present in different cachelines */
qdf_prefetch(&nbuf->len);
qdf_prefetch(&nbuf->users);
qdf_prefetch(skb_end_pointer(nbuf));
}
}
#else