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qcacmn: Add changes for Napier flow control

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Adds support for flow control on convergence branch.
Allocate Tx descriptors dynamically when vdev comes up.
Tx queue is paused and unpaused internally in host based on the
stop and start thresholds.
Changes are added under compilation flag QCA_LL_TX_FLOW_CONTROL_V2.

Change-Id: I0ccb80b0099f39efad52ccd7d47f2709fdee2a93
CRs-Fixed: 2040457
This commit is contained in:
Manjunathappa Prakash
2017-07-02 03:02:15 -07:00
committed by Anjaneedevi Kapparapu
parent 43e9c64f30
commit ced7ea6cf2
14 changed files with 838 additions and 84 deletions
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31
dp/wifi3.0/dp_tx_desc.c
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@@ -73,32 +73,34 @@ QDF_STATUS dp_tx_desc_pool_alloc(struct dp_soc *soc, uint8_t pool_id,
uint16_t num_page, num_desc_per_page;
struct dp_tx_desc_s *tx_desc_elem;
uint32_t desc_size;
struct dp_tx_desc_pool_s *tx_desc_pool = &((soc)->tx_desc[(pool_id)]);
desc_size = DP_TX_DESC_SIZE(sizeof(*tx_desc_elem));
soc->tx_desc[pool_id].elem_size = desc_size;
tx_desc_pool->elem_size = desc_size;
qdf_mem_multi_pages_alloc(soc->osdev,
&soc->tx_desc[pool_id].desc_pages, desc_size, num_elem,
&tx_desc_pool->desc_pages, desc_size, num_elem,
0, true);
if (!soc->tx_desc[pool_id].desc_pages.num_pages) {
if (!tx_desc_pool->desc_pages.num_pages) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"Multi page alloc fail, tx desc");
goto fail_exit;
}
num_page = soc->tx_desc[pool_id].desc_pages.num_pages;
num_page = tx_desc_pool->desc_pages.num_pages;
num_desc_per_page =
soc->tx_desc[pool_id].desc_pages.num_element_per_page;
soc->tx_desc[pool_id].freelist = (struct dp_tx_desc_s *)
*soc->tx_desc[pool_id].desc_pages.cacheable_pages;
tx_desc_pool->desc_pages.num_element_per_page;
tx_desc_pool->freelist = (struct dp_tx_desc_s *)
*tx_desc_pool->desc_pages.cacheable_pages;
if (qdf_mem_multi_page_link(soc->osdev,
&soc->tx_desc[pool_id].desc_pages, desc_size, num_elem, true)) {
&tx_desc_pool->desc_pages, desc_size, num_elem, true)) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"invalid tx desc allocation - overflow num link");
goto free_tx_desc;
}
/* Set unique IDs for each Tx descriptor */
tx_desc_elem = soc->tx_desc[pool_id].freelist;
tx_desc_elem = tx_desc_pool->freelist;
count = 0;
pool_id_32 = (uint32_t)pool_id;
while (tx_desc_elem) {
@@ -113,12 +115,12 @@ QDF_STATUS dp_tx_desc_pool_alloc(struct dp_soc *soc, uint8_t pool_id,
count++;
}
TX_DESC_LOCK_CREATE(&soc->tx_desc[pool_id].lock);
TX_DESC_LOCK_CREATE(&tx_desc_pool->lock);
return QDF_STATUS_SUCCESS;
free_tx_desc:
qdf_mem_multi_pages_free(soc->osdev,
&soc->tx_desc[pool_id].desc_pages, 0, true);
&tx_desc_pool->desc_pages, 0, true);
fail_exit:
return QDF_STATUS_E_FAULT;
@@ -134,9 +136,12 @@ fail_exit:
*/
QDF_STATUS dp_tx_desc_pool_free(struct dp_soc *soc, uint8_t pool_id)
{
struct dp_tx_desc_pool_s *tx_desc_pool =
&((soc)->tx_desc[(pool_id)]);
qdf_mem_multi_pages_free(soc->osdev,
&soc->tx_desc[pool_id].desc_pages, 0, true);
TX_DESC_LOCK_DESTROY(&soc->tx_desc[pool_id].lock);
&tx_desc_pool->desc_pages, 0, true);
TX_DESC_LOCK_DESTROY(&tx_desc_pool->lock);
return QDF_STATUS_SUCCESS;
}