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qcacld-3.0: Update SMMU mem table for each rx nbuff

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Currently SMMU mem map table allocation size is very high and may
lead to allocation failure if system memory is fragmented or in low
memory cases. Do not allocate SMMU mem table buffer instead update
for each rx nbuff.

Change-Id: Ib48199387abc942980cef1ef57a00e44c729e95f
CRs-Fixed: 2238629
This commit is contained in:
Sravan Kumar Kairam 2018-05-08 18:33:41 +05:30 • committed by nshrivas
commit ff44dc3e2a
1 changed files with 7 additions and 41 deletions
Download patch file Download diff file Expand all files Collapse all files

48
core/dp/htt/htt_rx.c
View file

@ -505,19 +505,9 @@ static int htt_rx_ring_fill_n(struct htt_pdev_t *pdev, int num)
struct htt_host_rx_desc_base *rx_desc;
int filled = 0;
int debt_served = 0;
qdf_mem_info_t *mem_map_table = NULL, *mem_info = NULL;
int num_alloc = 0;
qdf_mem_info_t mem_map_table = {0};
idx = *(pdev->rx_ring.alloc_idx.vaddr);
if (qdf_mem_smmu_s1_enabled(pdev->osdev) && pdev->is_ipa_uc_enabled) {
mem_map_table = qdf_mem_map_table_alloc(num);
if (!mem_map_table) {
qdf_print("%s: Failed to allocate memory for mem map table\n",
__func__);
goto update_alloc_idx;
}
mem_info = mem_map_table;
}
moretofill:
while (num > 0) {
@ -544,7 +534,7 @@ moretofill:
qdf_timer_start(
&pdev->rx_ring.refill_retry_timer,
HTT_RX_RING_REFILL_RETRY_TIME_MS);
goto free_mem_map_table;
goto update_alloc_idx;
}
/* Clear rx_desc attention word before posting to Rx ring */
@ -581,8 +571,9 @@ moretofill:
#endif
if (status != QDF_STATUS_SUCCESS) {
qdf_nbuf_free(rx_netbuf);
goto free_mem_map_table;
goto update_alloc_idx;
}
paddr = qdf_nbuf_get_frag_paddr(rx_netbuf, 0);
paddr_marked = htt_rx_paddr_mark_high_bits(paddr);
if (pdev->cfg.is_full_reorder_offload) {
@ -599,7 +590,7 @@ moretofill:
QDF_DMA_FROM_DEVICE);
#endif
qdf_nbuf_free(rx_netbuf);
goto free_mem_map_table;
goto update_alloc_idx;
}
htt_rx_dbg_rxbuf_set(pdev, paddr_marked, rx_netbuf);
} else {
@ -608,10 +599,9 @@ moretofill:
if (qdf_mem_smmu_s1_enabled(pdev->osdev) &&
pdev->is_ipa_uc_enabled) {
qdf_update_mem_map_table(pdev->osdev, mem_info,
qdf_update_mem_map_table(pdev->osdev, &mem_map_table,
paddr, HTT_RX_BUF_SIZE);
mem_info++;
num_alloc++;
cds_smmu_map_unmap(true, 1, &mem_map_table);
}
pdev->rx_ring.buf.paddrs_ring[idx] = paddr_marked;
@ -623,36 +613,12 @@ moretofill:
idx &= pdev->rx_ring.size_mask;
}
if (qdf_mem_smmu_s1_enabled(pdev->osdev) && pdev->is_ipa_uc_enabled) {
cds_smmu_map_unmap(true, num_alloc, mem_map_table);
qdf_mem_free(mem_map_table);
}
num_alloc = 0;
if (debt_served < qdf_atomic_read(&pdev->rx_ring.refill_debt)) {
num = qdf_atomic_read(&pdev->rx_ring.refill_debt);
debt_served += num;
if (qdf_mem_smmu_s1_enabled(pdev->osdev) &&
pdev->is_ipa_uc_enabled) {
mem_map_table = qdf_mem_map_table_alloc(num);
if (!mem_map_table) {
qdf_print("%s: Failed to allocate memory for mem map table\n",
__func__);
goto update_alloc_idx;
}
mem_info = mem_map_table;
}
goto moretofill;
}
goto update_alloc_idx;
free_mem_map_table:
if (qdf_mem_smmu_s1_enabled(pdev->osdev) && pdev->is_ipa_uc_enabled) {
cds_smmu_map_unmap(true, num_alloc, mem_map_table);
qdf_mem_free(mem_map_table);
}
update_alloc_idx:
/*
* Make sure alloc index write is reflected correctly before FW polls