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qcacmn: Fix the next link descriptor read issue

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Link descriptor were getting freed by the pointer
of the previous freed link descriptor. This patch
fixes by copying the address of the current in a
local descriptor info and using it to free the
current.

Change-Id: I95e137ba5b1f0ad21b0e6fb39f6671e1d5b65ba6
CRs-Fixed: 2577624
This commit is contained in:
Aniruddha Paul
2019-11-27 18:48:04 +05:30
committed by nshrivas
parent efa9f5d2a9
commit 33fce952a9
7 changed files with 57 additions and 42 deletions
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2
dp/wifi3.0/dp_rx.h
View File

@@ -978,7 +978,7 @@ dp_rx_link_desc_return(struct dp_soc *soc, hal_ring_desc_t ring_desc,
*/
QDF_STATUS
dp_rx_link_desc_return_by_addr(struct dp_soc *soc,
hal_link_desc_t link_desc_addr,
hal_buff_addrinfo_t link_desc_addr,
uint8_t bm_action);
/**

46
dp/wifi3.0/dp_rx_err.c
View File

@@ -165,7 +165,7 @@ static inline bool dp_rx_mcast_echo_check(struct dp_soc *soc,
*/
QDF_STATUS
dp_rx_link_desc_return_by_addr(struct dp_soc *soc,
hal_link_desc_t link_desc_addr,
hal_buff_addrinfo_t link_desc_addr,
uint8_t bm_action)
{
struct dp_srng *wbm_desc_rel_ring = &soc->wbm_desc_rel_ring;
@@ -1719,8 +1719,6 @@ dp_rx_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
struct hal_rx_msdu_list msdu_list;
uint16_t num_msdus;
struct hal_buf_info buf_info;
void *p_buf_addr_info;
void *p_last_buf_addr_info;
uint32_t rx_bufs_used = 0;
uint32_t msdu_cnt;
uint32_t i;
@@ -1728,6 +1726,7 @@ dp_rx_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
uint8_t rxdma_error_code = 0;
uint8_t bm_action = HAL_BM_ACTION_PUT_IN_IDLE_LIST;
struct dp_pdev *pdev = dp_get_pdev_for_mac_id(soc, mac_id);
uint32_t rx_link_buf_info[HAL_RX_BUFFINFO_NUM_DWORDS];
hal_rxdma_desc_t ring_desc;
msdu = 0;
@@ -1735,7 +1734,7 @@ dp_rx_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
last = NULL;
hal_rx_reo_ent_buf_paddr_get(rxdma_dst_ring_desc, &buf_info,
&p_last_buf_addr_info, &msdu_cnt);
&msdu_cnt);
push_reason =
hal_rx_reo_ent_rxdma_push_reason_get(rxdma_dst_ring_desc);
@@ -1811,12 +1810,18 @@ dp_rx_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
rxdma_error_code = HAL_RXDMA_ERR_WAR;
}
hal_rx_mon_next_link_desc_get(rx_msdu_link_desc, &buf_info,
&p_buf_addr_info);
dp_rx_link_desc_return(soc, p_last_buf_addr_info, bm_action);
p_last_buf_addr_info = p_buf_addr_info;
/*
* Store the current link buffer into to the local structure
* to be used for release purpose.
*/
hal_rxdma_buff_addr_info_set(rx_link_buf_info, buf_info.paddr,
buf_info.sw_cookie, buf_info.rbm);
hal_rx_mon_next_link_desc_get(rx_msdu_link_desc, &buf_info);
dp_rx_link_desc_return_by_addr(soc,
(hal_buff_addrinfo_t)
rx_link_buf_info,
bm_action);
} while (buf_info.paddr);
DP_STATS_INC(soc, rx.err.rxdma_error[rxdma_error_code], 1);
@@ -1907,18 +1912,15 @@ dp_wbm_int_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
struct hal_rx_msdu_list msdu_list;
uint16_t num_msdus;
struct hal_buf_info buf_info;
void *p_buf_addr_info;
void *p_last_buf_addr_info;
uint32_t rx_bufs_used = 0;
uint32_t msdu_cnt;
uint32_t i;
uint32_t rx_bufs_used = 0, msdu_cnt, i;
uint32_t rx_link_buf_info[HAL_RX_BUFFINFO_NUM_DWORDS];
msdu = 0;
last = NULL;
hal_rx_reo_ent_buf_paddr_get(rxdma_dst_ring_desc, &buf_info,
&p_last_buf_addr_info, &msdu_cnt);
&msdu_cnt);
do {
rx_msdu_link_desc =
@@ -1951,13 +1953,17 @@ dp_wbm_int_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
}
}
hal_rx_mon_next_link_desc_get(rx_msdu_link_desc, &buf_info,
&p_buf_addr_info);
/*
* Store the current link buffer into to the local structure
* to be used for release purpose.
*/
hal_rxdma_buff_addr_info_set(rx_link_buf_info, buf_info.paddr,
buf_info.sw_cookie, buf_info.rbm);
dp_rx_link_desc_return(soc, p_last_buf_addr_info,
hal_rx_mon_next_link_desc_get(rx_msdu_link_desc, &buf_info);
dp_rx_link_desc_return_by_addr(soc, (hal_buff_addrinfo_t)
rx_link_buf_info,
HAL_BM_ACTION_PUT_IN_IDLE_LIST);
p_last_buf_addr_info = p_buf_addr_info;
} while (buf_info.paddr);
return rx_bufs_used;

28
dp/wifi3.0/dp_rx_mon_dest.c
View File

@@ -55,7 +55,7 @@
*/
static QDF_STATUS
dp_rx_mon_link_desc_return(struct dp_pdev *dp_pdev,
void *buf_addr_info, int mac_id)
hal_buff_addrinfo_t buf_addr_info, int mac_id)
{
struct dp_srng *dp_srng;
hal_ring_handle_t hal_ring_hdl;
@@ -153,14 +153,15 @@ void *dp_rx_cookie_2_mon_link_desc(struct dp_pdev *pdev,
*/
static inline
QDF_STATUS dp_rx_monitor_link_desc_return(struct dp_pdev *pdev,
void *p_last_buf_addr_info,
hal_buff_addrinfo_t
p_last_buf_addr_info,
uint8_t mac_id, uint8_t bm_action)
{
if (pdev->soc->wlan_cfg_ctx->rxdma1_enable)
return dp_rx_mon_link_desc_return(pdev, p_last_buf_addr_info,
mac_id);
return dp_rx_link_desc_return(pdev->soc, p_last_buf_addr_info,
return dp_rx_link_desc_return_by_addr(pdev->soc, p_last_buf_addr_info,
bm_action);
}
@@ -269,8 +270,6 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
uint16_t num_msdus;
uint32_t rx_buf_size, rx_pkt_offset;
struct hal_buf_info buf_info;
void *p_buf_addr_info;
void *p_last_buf_addr_info;
uint32_t rx_bufs_used = 0;
uint32_t msdu_ppdu_id, msdu_cnt;
uint8_t *data;
@@ -280,13 +279,13 @@ dp_rx_mon_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
bool drop_mpdu = false;
uint8_t bm_action = HAL_BM_ACTION_PUT_IN_IDLE_LIST;
uint64_t nbuf_paddr = 0;
uint32_t rx_link_buf_info[HAL_RX_BUFFINFO_NUM_DWORDS];
msdu = 0;
last = NULL;
hal_rx_reo_ent_buf_paddr_get(rxdma_dst_ring_desc, &buf_info,
&p_last_buf_addr_info, &msdu_cnt);
hal_rx_reo_ent_buf_paddr_get(rxdma_dst_ring_desc, &buf_info, &msdu_cnt);
if ((hal_rx_reo_ent_rxdma_push_reason_get(rxdma_dst_ring_desc) ==
HAL_RX_WBM_RXDMA_PSH_RSN_ERROR)) {
@@ -505,19 +504,22 @@ next_msdu:
tail, rx_desc);
}
hal_rx_mon_next_link_desc_get(rx_msdu_link_desc, &buf_info,
&p_buf_addr_info);
/*
* Store the current link buffer into to the local
* structure to be used for release purpose.
*/
hal_rxdma_buff_addr_info_set(rx_link_buf_info, buf_info.paddr,
buf_info.sw_cookie, buf_info.rbm);
hal_rx_mon_next_link_desc_get(rx_msdu_link_desc, &buf_info);
if (dp_rx_monitor_link_desc_return(dp_pdev,
p_last_buf_addr_info,
(hal_buff_addrinfo_t)
rx_link_buf_info,
mac_id,
bm_action)
!= QDF_STATUS_SUCCESS)
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"dp_rx_monitor_link_desc_return failed");
p_last_buf_addr_info = p_buf_addr_info;
} while (buf_info.paddr && msdu_cnt);
if (last)

6
hal/wifi3.0/hal_api.h
View File

@@ -76,6 +76,12 @@ typedef struct hal_link_desc *hal_link_desc_t;
struct hal_rxdma_desc;
typedef struct hal_rxdma_desc *hal_rxdma_desc_t;
/**
* hal_buff_addrinfo - opaque handle for DP buffer address info
*/
struct hal_buff_addrinfo;
typedef struct hal_buff_addrinfo *hal_buff_addrinfo_t;
#ifdef ENABLE_VERBOSE_DEBUG
static inline void
hal_set_verbose_debug(bool flag)

11
hal/wifi3.0/hal_api_mon.h
View File

@@ -265,7 +265,6 @@ bool HAL_RX_HW_DESC_MPDU_VALID(void *hw_desc_addr)
static inline
void hal_rx_reo_ent_buf_paddr_get(hal_rxdma_desc_t rx_desc,
struct hal_buf_info *buf_info,
void **pp_buf_addr_info,
uint32_t *msdu_cnt
)
{
@@ -292,18 +291,17 @@ void hal_rx_reo_ent_buf_paddr_get(hal_rxdma_desc_t rx_desc,
(HAL_RX_BUFFER_ADDR_39_32_GET(buf_addr_info)) << 32));
buf_info->sw_cookie = HAL_RX_BUF_COOKIE_GET(buf_addr_info);
buf_info->rbm = HAL_RX_BUF_RBM_GET(buf_addr_info);
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG,
"[%s][%d] ReoAddr=%pK, addrInfo=%pK, paddr=0x%llx, loopcnt=%d",
__func__, __LINE__, reo_ent_ring, buf_addr_info,
(unsigned long long)buf_info->paddr, loop_cnt);
*pp_buf_addr_info = (void *)buf_addr_info;
}
static inline
void hal_rx_mon_next_link_desc_get(void *rx_msdu_link_desc,
struct hal_buf_info *buf_info, void **pp_buf_addr_info)
struct hal_buf_info *buf_info)
{
struct rx_msdu_link *msdu_link =
(struct rx_msdu_link *)rx_msdu_link_desc;
@@ -317,8 +315,7 @@ void hal_rx_mon_next_link_desc_get(void *rx_msdu_link_desc,
(HAL_RX_BUFFER_ADDR_39_32_GET(buf_addr_info)) << 32));
buf_info->sw_cookie = HAL_RX_BUF_COOKIE_GET(buf_addr_info);
*pp_buf_addr_info = (void *)buf_addr_info;
buf_info->rbm = HAL_RX_BUF_RBM_GET(buf_addr_info);
}
/**
@@ -334,7 +331,7 @@ void hal_rx_mon_next_link_desc_get(void *rx_msdu_link_desc,
static inline
void hal_rx_mon_msdu_link_desc_set(hal_soc_handle_t hal_soc_hdl,
void *src_srng_desc,
void *buf_addr_info)
hal_buff_addrinfo_t buf_addr_info)
{
struct buffer_addr_info *wbm_srng_buffer_addr_info =
(struct buffer_addr_info *)src_srng_desc;

3
hal/wifi3.0/hal_hw_headers.h
View File

@@ -87,6 +87,9 @@
#define SRNG_LOOP_CNT_MASK REO_DESTINATION_RING_15_LOOPING_COUNT_MASK
#define SRNG_LOOP_CNT_LSB REO_DESTINATION_RING_15_LOOPING_COUNT_LSB
/* HAL Macro to get the buffer info size */
#define HAL_RX_BUFFINFO_NUM_DWORDS NUM_OF_DWORDS_BUFFER_ADDR_INFO
#define HAL_DEFAULT_BE_BK_VI_REO_TIMEOUT_MS 100 /* milliseconds */
#define HAL_DEFAULT_VO_REO_TIMEOUT_MS 40 /* milliseconds */

3
hal/wifi3.0/hal_rx.h
View File

@@ -1702,6 +1702,7 @@ struct hal_rx_msdu_list {
struct hal_buf_info {
uint64_t paddr;
uint32_t sw_cookie;
uint8_t rbm;
};
/**
@@ -2096,7 +2097,7 @@ static inline void hal_dump_wbm_rel_desc(void *src_srng_desc)
static inline
void hal_rx_msdu_link_desc_set(hal_soc_handle_t hal_soc_hdl,
void *src_srng_desc,
hal_link_desc_t buf_addr_info,
hal_buff_addrinfo_t buf_addr_info,
uint8_t bm_action)
{
struct wbm_release_ring *wbm_rel_srng =