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qcacmn: DP RX changes for RX buffer pool support

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DP RX changes to support RX buffer pool, this is a pre-allocated pool
of buffers which will be utilized during low memory conditions.

Change-Id: I8d89a865f989d4e88c10390861e9d4be72ae0299
CRs-Fixed: 2731517
This commit is contained in:
Manikanta Pubbisetty
2020-07-20 13:35:43 +05:30
committed by snandini
parent ea9aadb12d
commit fa2844b787
8 changed files with 106 additions and 18 deletions
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33
dp/wifi3.0/dp_rx_err.c
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@@ -31,6 +31,7 @@
#endif
#include <enet.h> /* LLC_SNAP_HDR_LEN */
#include "qdf_net_types.h"
#include "dp_rx_buffer_pool.h"
/* Max buffer in invalid peer SG list*/
#define DP_MAX_INVALID_BUFFERS 10
@@ -323,7 +324,7 @@ dp_rx_msdus_drop(struct dp_soc *soc, hal_ring_desc_t ring_desc,
hal_rx_print_pn(soc->hal_soc, rx_tlv_hdr);
/* Just free the buffers */
qdf_nbuf_free(rx_desc->nbuf);
dp_rx_buffer_pool_nbuf_free(soc, rx_desc->nbuf, *mac_id);
dp_rx_add_to_free_desc_list(&pdev->free_list_head,
&pdev->free_list_tail, rx_desc);
@@ -515,6 +516,12 @@ more_msdu_link_desc:
HAL_MSDU_F_MSDU_CONTINUATION))
continue;
if (dp_rx_buffer_pool_refill(soc, head_nbuf,
rx_desc->pool_id)) {
/* MSDU queued back to the pool */
goto process_next_msdu;
}
rx_tlv_hdr_first = qdf_nbuf_data(head_nbuf);
rx_tlv_hdr_last = qdf_nbuf_data(tail_nbuf);
@@ -547,6 +554,7 @@ more_msdu_link_desc:
qdf_nbuf_free(nbuf);
}
process_next_msdu:
msdu_processed++;
head_nbuf = NULL;
tail_nbuf = NULL;
@@ -1852,13 +1860,19 @@ dp_rx_wbm_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
soc->wbm_sg_param.wbm_sg_nbuf_tail,
nbuf);
if (process_sg_buf) {
DP_RX_MERGE_TWO_LIST(nbuf_head, nbuf_tail,
soc->wbm_sg_param.wbm_sg_nbuf_head,
soc->wbm_sg_param.wbm_sg_nbuf_tail);
if (!dp_rx_buffer_pool_refill(
soc,
soc->wbm_sg_param.wbm_sg_nbuf_head,
rx_desc->pool_id))
DP_RX_MERGE_TWO_LIST(
nbuf_head, nbuf_tail,
soc->wbm_sg_param.wbm_sg_nbuf_head,
soc->wbm_sg_param.wbm_sg_nbuf_tail);
dp_rx_wbm_sg_list_reset(soc);
process_sg_buf = false;
}
} else {
} else if (!dp_rx_buffer_pool_refill(soc, nbuf,
rx_desc->pool_id)) {
DP_RX_LIST_APPEND(nbuf_head, nbuf_tail, nbuf);
}
@@ -2227,7 +2241,8 @@ dp_rx_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
"[%s][%d] msdu_nbuf=%pK ",
__func__, __LINE__, msdu);
qdf_nbuf_free(msdu);
dp_rx_buffer_pool_nbuf_free(soc, msdu,
rx_desc->pool_id);
rx_bufs_used++;
dp_rx_add_to_free_desc_list(head,
tail, rx_desc);
@@ -2375,7 +2390,8 @@ dp_wbm_int_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
qdf_nbuf_unmap_single(soc->osdev, msdu,
QDF_DMA_FROM_DEVICE);
qdf_nbuf_free(msdu);
dp_rx_buffer_pool_nbuf_free(soc, msdu,
rx_desc->pool_id);
rx_bufs_used++;
dp_rx_add_to_free_desc_list(head,
tail, rx_desc);
@@ -2456,7 +2472,8 @@ dp_handle_wbm_internal_error(struct dp_soc *soc, void *hal_desc,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
qdf_nbuf_free(rx_desc->nbuf);
dp_rx_buffer_pool_nbuf_free(soc, rx_desc->nbuf,
rx_desc->pool_id);
dp_rx_add_to_free_desc_list(&head,
&tail,
rx_desc);