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qcacmn: Allocate multi page memory for dp_rx_desc_pool_alloc

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Allocate memory in multiple smaller chunks for dp_rx_desc_pool_alloc,
and link the pages instead of allocating one big contiguous memory to
avoid memory allocation failures.

Change-Id: Id81de10727555c4ca78963a6f01ed3b992ce9924
CRs-Fixed: 2443999
This commit is contained in:
Varun Reddy Yeturu
2019-05-16 14:03:46 -07:00
committed by nshrivas
parent 1514e796b6
commit a7c21dc7f3
9 changed files with 366 additions and 65 deletions
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41
dp/wifi3.0/dp_ipa.c
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@@ -80,6 +80,46 @@ QDF_STATUS dp_ipa_handle_rx_buf_smmu_mapping(struct dp_soc *soc,
return __dp_ipa_handle_buf_smmu_mapping(soc, nbuf, create);
}
#ifdef RX_DESC_MULTI_PAGE_ALLOC
static QDF_STATUS dp_ipa_handle_rx_buf_pool_smmu_mapping(struct dp_soc *soc,
struct dp_pdev *pdev,
bool create)
{
struct rx_desc_pool *rx_pool;
uint8_t pdev_id;
uint32_t num_desc, page_id, offset, i;
uint16_t num_desc_per_page;
union dp_rx_desc_list_elem_t *rx_desc_elem;
struct dp_rx_desc *rx_desc;
qdf_nbuf_t nbuf;
if (!qdf_mem_smmu_s1_enabled(soc->osdev))
return QDF_STATUS_SUCCESS;
pdev_id = pdev->pdev_id;
rx_pool = &soc->rx_desc_buf[pdev_id];
qdf_spin_lock_bh(&rx_pool->lock);
num_desc = rx_pool->pool_size;
num_desc_per_page = rx_pool->desc_pages.num_element_per_page;
for (i = 0; i < num_desc; i++) {
page_id = i / num_desc_per_page;
offset = i % num_desc_per_page;
if (qdf_unlikely(!(rx_pool->desc_pages.cacheable_pages)))
break;
rx_desc_elem = dp_rx_desc_find(page_id, offset, rx_pool);
rx_desc = &rx_desc_elem->rx_desc;
if ((!(rx_desc->in_use)) || rx_desc->unmapped)
continue;
nbuf = rx_desc->nbuf;
__dp_ipa_handle_buf_smmu_mapping(soc, nbuf, create);
}
qdf_spin_unlock_bh(&rx_pool->lock);
return QDF_STATUS_SUCCESS;
}
#else
static QDF_STATUS dp_ipa_handle_rx_buf_pool_smmu_mapping(struct dp_soc *soc,
struct dp_pdev *pdev,
bool create)
@@ -109,6 +149,7 @@ static QDF_STATUS dp_ipa_handle_rx_buf_pool_smmu_mapping(struct dp_soc *soc,
return QDF_STATUS_SUCCESS;
}
#endif /* RX_DESC_MULTI_PAGE_ALLOC */
/**
* dp_tx_ipa_uc_detach - Free autonomy TX resources