samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
3a1a2dac529d4eb23fda6b1b74eb812a447173b3
android_kernel_samsung_sm86…/dp/wifi3.0/dp_rx_err.c
Sai Rupesh Chevuru 6bbb8971e2 qcacmn: Fix for ping issue in NAWDS Learning repeater mode 
In qcn9224, NAWDS Learning repeater mode will receive packets
with reason as HAL_RXDMA_UNAUTHORIZED_WDS.

Change-Id: I6fe8428a5f8e2bac0e1db45b87169db0bd4cc271
2021-12-30 03:23:12 -08:00

3374 lines
93 KiB
C
Raw Blame History

/*
* Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "hal_hw_headers.h"
#include "dp_types.h"
#include "dp_rx.h"
#include "dp_tx.h"
#include "dp_peer.h"
#include "dp_internal.h"
#include "hal_api.h"
#include "qdf_trace.h"
#include "qdf_nbuf.h"
#include "dp_rx_defrag.h"
#include "dp_ipa.h"
#ifdef WIFI_MONITOR_SUPPORT
#include "dp_htt.h"
#include <dp_mon.h>
#endif
#ifdef FEATURE_WDS
#include "dp_txrx_wds.h"
#endif
#include <enet.h> /* LLC_SNAP_HDR_LEN */
#include "qdf_net_types.h"
#include "dp_rx_buffer_pool.h"
#define dp_rx_err_alert(params...) QDF_TRACE_FATAL(QDF_MODULE_ID_DP_RX_ERROR, params)
#define dp_rx_err_err(params...) QDF_TRACE_ERROR(QDF_MODULE_ID_DP_RX_ERROR, params)
#define dp_rx_err_warn(params...) QDF_TRACE_WARN(QDF_MODULE_ID_DP_RX_ERROR, params)
#define dp_rx_err_info(params...) \
__QDF_TRACE_FL(QDF_TRACE_LEVEL_INFO_HIGH, QDF_MODULE_ID_DP_RX_ERROR, ## params)
#define dp_rx_err_info_rl(params...) \
__QDF_TRACE_RL(QDF_TRACE_LEVEL_INFO_HIGH, QDF_MODULE_ID_DP_RX_ERROR, ## params)
#define dp_rx_err_debug(params...) QDF_TRACE_DEBUG(QDF_MODULE_ID_DP_RX_ERROR, params)
#ifndef QCA_HOST_MODE_WIFI_DISABLED
/* Max buffer in invalid peer SG list*/
#define DP_MAX_INVALID_BUFFERS 10
/* Max regular Rx packet routing error */
#define DP_MAX_REG_RX_ROUTING_ERRS_THRESHOLD 20
#define DP_MAX_REG_RX_ROUTING_ERRS_IN_TIMEOUT 10
#define DP_RX_ERR_ROUTE_TIMEOUT_US (5 * 1000 * 1000) /* micro seconds */
#ifdef FEATURE_MEC
bool dp_rx_mcast_echo_check(struct dp_soc *soc,
struct dp_peer *peer,
uint8_t *rx_tlv_hdr,
qdf_nbuf_t nbuf)
{
struct dp_vdev *vdev = peer->vdev;
struct dp_pdev *pdev = vdev->pdev;
struct dp_mec_entry *mecentry = NULL;
struct dp_ast_entry *ase = NULL;
uint16_t sa_idx = 0;
uint8_t *data;
/*
* Multicast Echo Check is required only if vdev is STA and
* received pkt is a multicast/broadcast pkt. otherwise
* skip the MEC check.
*/
if (vdev->opmode != wlan_op_mode_sta)
return false;
if (!hal_rx_msdu_end_da_is_mcbc_get(soc->hal_soc, rx_tlv_hdr))
return false;
data = qdf_nbuf_data(nbuf);
/*
* if the received pkts src mac addr matches with vdev
* mac address then drop the pkt as it is looped back
*/
if (!(qdf_mem_cmp(&data[QDF_MAC_ADDR_SIZE],
vdev->mac_addr.raw,
QDF_MAC_ADDR_SIZE)))
return true;
/*
* In case of qwrap isolation mode, donot drop loopback packets.
* In isolation mode, all packets from the wired stations need to go
* to rootap and loop back to reach the wireless stations and
* vice-versa.
*/
if (qdf_unlikely(vdev->isolation_vdev))
return false;
/*
* if the received pkts src mac addr matches with the
* wired PCs MAC addr which is behind the STA or with
* wireless STAs MAC addr which are behind the Repeater,
* then drop the pkt as it is looped back
*/
if (hal_rx_msdu_end_sa_is_valid_get(soc->hal_soc, rx_tlv_hdr)) {
sa_idx = hal_rx_msdu_end_sa_idx_get(soc->hal_soc, rx_tlv_hdr);
if ((sa_idx < 0) ||
(sa_idx >= wlan_cfg_get_max_ast_idx(soc->wlan_cfg_ctx))) {
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"invalid sa_idx: %d", sa_idx);
qdf_assert_always(0);
}
qdf_spin_lock_bh(&soc->ast_lock);
ase = soc->ast_table[sa_idx];
/*
* this check was not needed since MEC is not dependent on AST,
* but if we dont have this check SON has some issues in
* dual backhaul scenario. in APS SON mode, client connected
* to RE 2G and sends multicast packets. the RE sends it to CAP
* over 5G backhaul. the CAP loopback it on 2G to RE.
* On receiving in 2G STA vap, we assume that client has roamed
* and kickout the client.
*/
if (ase && (ase->peer_id != peer->peer_id)) {
qdf_spin_unlock_bh(&soc->ast_lock);
goto drop;
}
qdf_spin_unlock_bh(&soc->ast_lock);
}
qdf_spin_lock_bh(&soc->mec_lock);
mecentry = dp_peer_mec_hash_find_by_pdevid(soc, pdev->pdev_id,
&data[QDF_MAC_ADDR_SIZE]);
if (!mecentry) {
qdf_spin_unlock_bh(&soc->mec_lock);
return false;
}
qdf_spin_unlock_bh(&soc->mec_lock);
drop:
dp_rx_err_info("%pK: received pkt with same src mac " QDF_MAC_ADDR_FMT,
soc, QDF_MAC_ADDR_REF(&data[QDF_MAC_ADDR_SIZE]));
return true;
}
#endif
#endif /* QCA_HOST_MODE_WIFI_DISABLED */
void dp_rx_link_desc_refill_duplicate_check(
struct dp_soc *soc,
struct hal_buf_info *buf_info,
hal_buff_addrinfo_t ring_buf_info)
{
struct hal_buf_info current_link_desc_buf_info = { 0 };
/* do duplicate link desc address check */
hal_rx_buffer_addr_info_get_paddr(ring_buf_info,
&current_link_desc_buf_info);
/*
* TODO - Check if the hal soc api call can be removed
* since the cookie is just used for print.
* buffer_addr_info is the first element of ring_desc
*/
hal_rx_buf_cookie_rbm_get(soc->hal_soc,
(uint32_t *)ring_buf_info,
&current_link_desc_buf_info);
if (qdf_unlikely(current_link_desc_buf_info.paddr ==
buf_info->paddr)) {
dp_info_rl("duplicate link desc addr: %llu, cookie: 0x%x",
current_link_desc_buf_info.paddr,
current_link_desc_buf_info.sw_cookie);
DP_STATS_INC(soc, rx.err.dup_refill_link_desc, 1);
}
*buf_info = current_link_desc_buf_info;
}
/**
* dp_rx_link_desc_return_by_addr - Return a MPDU link descriptor to
* (WBM) by address
*
* @soc: core DP main context
* @link_desc_addr: link descriptor addr
*
* Return: QDF_STATUS
*/
QDF_STATUS
dp_rx_link_desc_return_by_addr(struct dp_soc *soc,
hal_buff_addrinfo_t link_desc_addr,
uint8_t bm_action)
{
struct dp_srng *wbm_desc_rel_ring = &soc->wbm_desc_rel_ring;
hal_ring_handle_t wbm_rel_srng = wbm_desc_rel_ring->hal_srng;
hal_soc_handle_t hal_soc = soc->hal_soc;
QDF_STATUS status = QDF_STATUS_E_FAILURE;
void *src_srng_desc;
if (!wbm_rel_srng) {
dp_rx_err_err("%pK: WBM RELEASE RING not initialized", soc);
return status;
}
/* do duplicate link desc address check */
dp_rx_link_desc_refill_duplicate_check(
soc,
&soc->last_op_info.wbm_rel_link_desc,
link_desc_addr);
if (qdf_unlikely(hal_srng_access_start(hal_soc, wbm_rel_srng))) {
/* TODO */
/*
* Need API to convert from hal_ring pointer to
* Ring Type / Ring Id combo
*/
dp_rx_err_err("%pK: HAL RING Access For WBM Release SRNG Failed - %pK",
soc, wbm_rel_srng);
DP_STATS_INC(soc, rx.err.hal_ring_access_fail, 1);
goto done;
}
src_srng_desc = hal_srng_src_get_next(hal_soc, wbm_rel_srng);
if (qdf_likely(src_srng_desc)) {
/* Return link descriptor through WBM ring (SW2WBM)*/
hal_rx_msdu_link_desc_set(hal_soc,
src_srng_desc, link_desc_addr, bm_action);
status = QDF_STATUS_SUCCESS;
} else {
struct hal_srng *srng = (struct hal_srng *)wbm_rel_srng;
DP_STATS_INC(soc, rx.err.hal_ring_access_full_fail, 1);
dp_info_rl("WBM Release Ring (Id %d) Full(Fail CNT %u)",
srng->ring_id,
soc->stats.rx.err.hal_ring_access_full_fail);
dp_info_rl("HP 0x%x Reap HP 0x%x TP 0x%x Cached TP 0x%x",
*srng->u.src_ring.hp_addr,
srng->u.src_ring.reap_hp,
*srng->u.src_ring.tp_addr,
srng->u.src_ring.cached_tp);
QDF_BUG(0);
}
done:
hal_srng_access_end(hal_soc, wbm_rel_srng);
return status;
}
qdf_export_symbol(dp_rx_link_desc_return_by_addr);
/**
* dp_rx_link_desc_return() - Return a MPDU link descriptor to HW
* (WBM), following error handling
*
* @soc: core DP main context
* @ring_desc: opaque pointer to the REO error ring descriptor
*
* Return: QDF_STATUS
*/
QDF_STATUS
dp_rx_link_desc_return(struct dp_soc *soc, hal_ring_desc_t ring_desc,
uint8_t bm_action)
{
void *buf_addr_info = HAL_RX_REO_BUF_ADDR_INFO_GET(ring_desc);
return dp_rx_link_desc_return_by_addr(soc, buf_addr_info, bm_action);
}
#ifndef QCA_HOST_MODE_WIFI_DISABLED
/**
* dp_rx_msdus_drop() - Drops all MSDU's per MPDU
*
* @soc: core txrx main context
* @ring_desc: opaque pointer to the REO error ring descriptor
* @mpdu_desc_info: MPDU descriptor information from ring descriptor
* @head: head of the local descriptor free-list
* @tail: tail of the local descriptor free-list
* @quota: No. of units (packets) that can be serviced in one shot.
*
* This function is used to drop all MSDU in an MPDU
*
* Return: uint32_t: No. of elements processed
*/
static uint32_t
dp_rx_msdus_drop(struct dp_soc *soc, hal_ring_desc_t ring_desc,
struct hal_rx_mpdu_desc_info *mpdu_desc_info,
uint8_t *mac_id,
uint32_t quota)
{
uint32_t rx_bufs_used = 0;
void *link_desc_va;
struct hal_buf_info buf_info;
struct dp_pdev *pdev;
struct hal_rx_msdu_list msdu_list; /* MSDU's per MPDU */
int i;
uint8_t *rx_tlv_hdr;
uint32_t tid;
struct rx_desc_pool *rx_desc_pool;
struct dp_rx_desc *rx_desc;
/* First field in REO Dst ring Desc is buffer_addr_info */
void *buf_addr_info = ring_desc;
struct buffer_addr_info cur_link_desc_addr_info = { 0 };
struct buffer_addr_info next_link_desc_addr_info = { 0 };
hal_rx_reo_buf_paddr_get(soc->hal_soc, ring_desc, &buf_info);
/* buffer_addr_info is the first element of ring_desc */
hal_rx_buf_cookie_rbm_get(soc->hal_soc,
(uint32_t *)ring_desc,
&buf_info);
link_desc_va = dp_rx_cookie_2_link_desc_va(soc, &buf_info);
if (!link_desc_va) {
dp_rx_err_debug("link desc va is null, soc %pk", soc);
return rx_bufs_used;
}
more_msdu_link_desc:
/* No UNMAP required -- this is "malloc_consistent" memory */
hal_rx_msdu_list_get(soc->hal_soc, link_desc_va, &msdu_list,
&mpdu_desc_info->msdu_count);
for (i = 0; (i < mpdu_desc_info->msdu_count); i++) {
rx_desc = soc->arch_ops.dp_rx_desc_cookie_2_va(
soc, msdu_list.sw_cookie[i]);
qdf_assert_always(rx_desc);
/* all buffers from a MSDU link link belong to same pdev */
*mac_id = rx_desc->pool_id;
pdev = dp_get_pdev_for_lmac_id(soc, rx_desc->pool_id);
if (!pdev) {
dp_rx_err_debug("%pK: pdev is null for pool_id = %d",
soc, rx_desc->pool_id);
return rx_bufs_used;
}
if (!dp_rx_desc_check_magic(rx_desc)) {
dp_rx_err_err("%pK: Invalid rx_desc cookie=%d",
soc, msdu_list.sw_cookie[i]);
return rx_bufs_used;
}
rx_desc_pool = &soc->rx_desc_buf[rx_desc->pool_id];
dp_ipa_rx_buf_smmu_mapping_lock(soc);
dp_ipa_handle_rx_buf_smmu_mapping(soc, rx_desc->nbuf,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(soc->osdev, rx_desc->nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
rx_desc->rx_buf_start = qdf_nbuf_data(rx_desc->nbuf);
rx_bufs_used++;
tid = hal_rx_mpdu_start_tid_get(soc->hal_soc,
rx_desc->rx_buf_start);
dp_rx_err_err("%pK: Packet received with PN error for tid :%d",
soc, tid);
rx_tlv_hdr = qdf_nbuf_data(rx_desc->nbuf);
if (hal_rx_encryption_info_valid(soc->hal_soc, rx_tlv_hdr))
hal_rx_print_pn(soc->hal_soc, rx_tlv_hdr);
/* Just free the buffers */
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);
}
/*
* If the msdu's are spread across multiple link-descriptors,
* we cannot depend solely on the msdu_count(e.g., if msdu is
* spread across multiple buffers).Hence, it is
* necessary to check the next link_descriptor and release
* all the msdu's that are part of it.
*/
hal_rx_get_next_msdu_link_desc_buf_addr_info(
link_desc_va,
&next_link_desc_addr_info);
if (hal_rx_is_buf_addr_info_valid(
&next_link_desc_addr_info)) {
/* Clear the next link desc info for the current link_desc */
hal_rx_clear_next_msdu_link_desc_buf_addr_info(link_desc_va);
dp_rx_link_desc_return_by_addr(soc, buf_addr_info,
HAL_BM_ACTION_PUT_IN_IDLE_LIST);
hal_rx_buffer_addr_info_get_paddr(
&next_link_desc_addr_info,
&buf_info);
/* buffer_addr_info is the first element of ring_desc */
hal_rx_buf_cookie_rbm_get(soc->hal_soc,
(uint32_t *)&next_link_desc_addr_info,
&buf_info);
cur_link_desc_addr_info = next_link_desc_addr_info;
buf_addr_info = &cur_link_desc_addr_info;
link_desc_va =
dp_rx_cookie_2_link_desc_va(soc, &buf_info);
goto more_msdu_link_desc;
}
quota--;
dp_rx_link_desc_return_by_addr(soc, buf_addr_info,
HAL_BM_ACTION_PUT_IN_IDLE_LIST);
return rx_bufs_used;
}
/**
* dp_rx_pn_error_handle() - Handles PN check errors
*
* @soc: core txrx main context
* @ring_desc: opaque pointer to the REO error ring descriptor
* @mpdu_desc_info: MPDU descriptor information from ring descriptor
* @head: head of the local descriptor free-list
* @tail: tail of the local descriptor free-list
* @quota: No. of units (packets) that can be serviced in one shot.
*
* This function implements PN error handling
* If the peer is configured to ignore the PN check errors
* or if DP feels, that this frame is still OK, the frame can be
* re-injected back to REO to use some of the other features
* of REO e.g. duplicate detection/routing to other cores
*
* Return: uint32_t: No. of elements processed
*/
static uint32_t
dp_rx_pn_error_handle(struct dp_soc *soc, hal_ring_desc_t ring_desc,
struct hal_rx_mpdu_desc_info *mpdu_desc_info,
uint8_t *mac_id,
uint32_t quota)
{
uint16_t peer_id;
uint32_t rx_bufs_used = 0;
struct dp_peer *peer;
bool peer_pn_policy = false;
peer_id = dp_rx_peer_metadata_peer_id_get(soc,
mpdu_desc_info->peer_meta_data);
peer = dp_peer_get_ref_by_id(soc, peer_id, DP_MOD_ID_RX_ERR);
if (qdf_likely(peer)) {
/*
* TODO: Check for peer specific policies & set peer_pn_policy
*/
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"discard rx due to PN error for peer %pK "QDF_MAC_ADDR_FMT,
peer, QDF_MAC_ADDR_REF(peer->mac_addr.raw));
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
}
dp_rx_err_err("%pK: Packet received with PN error", soc);
/* No peer PN policy -- definitely drop */
if (!peer_pn_policy)
rx_bufs_used = dp_rx_msdus_drop(soc, ring_desc,
mpdu_desc_info,
mac_id, quota);
return rx_bufs_used;
}
/**
* dp_rx_oor_handle() - Handles the msdu which is OOR error
*
* @soc: core txrx main context
* @nbuf: pointer to msdu skb
* @peer_id: dp peer ID
* @rx_tlv_hdr: start of rx tlv header
*
* This function process the msdu delivered from REO2TCL
* ring with error type OOR
*
* Return: None
*/
static void
dp_rx_oor_handle(struct dp_soc *soc,
qdf_nbuf_t nbuf,
uint16_t peer_id,
uint8_t *rx_tlv_hdr)
{
uint32_t frame_mask = FRAME_MASK_IPV4_ARP | FRAME_MASK_IPV4_DHCP |
FRAME_MASK_IPV4_EAPOL | FRAME_MASK_IPV6_DHCP;
struct dp_peer *peer = NULL;
peer = dp_peer_get_ref_by_id(soc, peer_id, DP_MOD_ID_RX_ERR);
if (!peer) {
dp_info_rl("peer not found");
goto free_nbuf;
}
if (dp_rx_deliver_special_frame(soc, peer, nbuf, frame_mask,
rx_tlv_hdr)) {
DP_STATS_INC(soc, rx.err.reo_err_oor_to_stack, 1);
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
return;
}
free_nbuf:
if (peer)
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
DP_STATS_INC(soc, rx.err.reo_err_oor_drop, 1);
qdf_nbuf_free(nbuf);
}
/**
* dp_rx_err_nbuf_pn_check() - Check if the PN number of this current packet
* is a monotonous increment of packet number
* from the previous successfully re-ordered
* frame.
* @soc: Datapath SOC handle
* @ring_desc: REO ring descriptor
* @nbuf: Current packet
*
* Return: QDF_STATUS_SUCCESS, if the pn check passes, else QDF_STATUS_E_FAILURE
*/
static inline QDF_STATUS
dp_rx_err_nbuf_pn_check(struct dp_soc *soc, hal_ring_desc_t ring_desc,
qdf_nbuf_t nbuf)
{
uint64_t prev_pn, curr_pn[2];
hal_rx_reo_prev_pn_get(soc->hal_soc, ring_desc, &prev_pn);
hal_rx_tlv_get_pn_num(soc->hal_soc, qdf_nbuf_data(nbuf), curr_pn);
if (curr_pn[0] > prev_pn)
return QDF_STATUS_SUCCESS;
return QDF_STATUS_E_FAILURE;
}
#ifdef WLAN_SKIP_BAR_UPDATE
static
void dp_rx_err_handle_bar(struct dp_soc *soc,
struct dp_peer *peer,
qdf_nbuf_t nbuf)
{
dp_info_rl("BAR update to H.W is skipped");
DP_STATS_INC(soc, rx.err.bar_handle_fail_count, 1);
}
#else
static
void dp_rx_err_handle_bar(struct dp_soc *soc,
struct dp_peer *peer,
qdf_nbuf_t nbuf)
{
uint8_t *rx_tlv_hdr;
unsigned char type, subtype;
uint16_t start_seq_num;
uint32_t tid;
QDF_STATUS status;
struct ieee80211_frame_bar *bar;
/*
* 1. Is this a BAR frame. If not Discard it.
* 2. If it is, get the peer id, tid, ssn
* 2a Do a tid update
*/
rx_tlv_hdr = qdf_nbuf_data(nbuf);
bar = (struct ieee80211_frame_bar *)(rx_tlv_hdr + soc->rx_pkt_tlv_size);
type = bar->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
subtype = bar->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK;
if (!(type == IEEE80211_FC0_TYPE_CTL &&
subtype == QDF_IEEE80211_FC0_SUBTYPE_BAR)) {
dp_err_rl("Not a BAR frame!");
return;
}
tid = hal_rx_mpdu_start_tid_get(soc->hal_soc, rx_tlv_hdr);
qdf_assert_always(tid < DP_MAX_TIDS);
start_seq_num = le16toh(bar->i_seq) >> IEEE80211_SEQ_SEQ_SHIFT;
dp_info_rl("tid %u window_size %u start_seq_num %u",
tid, peer->rx_tid[tid].ba_win_size, start_seq_num);
status = dp_rx_tid_update_wifi3(peer, tid,
peer->rx_tid[tid].ba_win_size,
start_seq_num,
true);
if (status != QDF_STATUS_SUCCESS) {
dp_err_rl("failed to handle bar frame update rx tid");
DP_STATS_INC(soc, rx.err.bar_handle_fail_count, 1);
} else {
DP_STATS_INC(soc, rx.err.ssn_update_count, 1);
}
}
#endif
/**
* _dp_rx_bar_frame_handle(): Core of the BAR frame handling
* @soc: Datapath SoC handle
* @nbuf: packet being processed
* @mpdu_desc_info: mpdu desc info for the current packet
* @tid: tid on which the packet arrived
* @err_status: Flag to indicate if REO encountered an error while routing this
* frame
* @error_code: REO error code
*
* Return: None
*/
static void
_dp_rx_bar_frame_handle(struct dp_soc *soc, qdf_nbuf_t nbuf,
struct hal_rx_mpdu_desc_info *mpdu_desc_info,
uint32_t tid, uint8_t err_status, uint32_t error_code)
{
uint16_t peer_id;
struct dp_peer *peer;
peer_id = dp_rx_peer_metadata_peer_id_get(soc,
mpdu_desc_info->peer_meta_data);
peer = dp_peer_get_tgt_peer_by_id(soc, peer_id, DP_MOD_ID_RX_ERR);
if (!peer)
return;
dp_info("BAR frame: peer = " QDF_MAC_ADDR_FMT
" peer_id = %d"
" tid = %u"
" SSN = %d"
" error status = %d",
QDF_MAC_ADDR_REF(peer->mac_addr.raw),
peer->peer_id,
tid,
mpdu_desc_info->mpdu_seq,
err_status);
if (err_status == HAL_REO_ERROR_DETECTED) {
switch (error_code) {
case HAL_REO_ERR_BAR_FRAME_2K_JUMP:
/* fallthrough */
case HAL_REO_ERR_BAR_FRAME_OOR:
dp_rx_err_handle_bar(soc, peer, nbuf);
DP_STATS_INC(soc, rx.err.reo_error[error_code], 1);
break;
default:
DP_STATS_INC(soc, rx.bar_frame, 1);
}
}
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
}
/**
* dp_rx_reo_err_entry_process() - Handles for REO error entry processing
*
* @soc: core txrx main context
* @ring_desc: opaque pointer to the REO error ring descriptor
* @mpdu_desc_info: pointer to mpdu level description info
* @link_desc_va: pointer to msdu_link_desc virtual address
* @err_code: reo erro code fetched from ring entry
*
* Function to handle msdus fetched from msdu link desc, currently
* only support 2K jump, OOR error.
*
* Return: msdu count processed.
*/
static uint32_t
dp_rx_reo_err_entry_process(struct dp_soc *soc,
void *ring_desc,
struct hal_rx_mpdu_desc_info *mpdu_desc_info,
void *link_desc_va,
enum hal_reo_error_code err_code)
{
uint32_t rx_bufs_used = 0;
struct dp_pdev *pdev;
int i;
uint8_t *rx_tlv_hdr_first;
uint8_t *rx_tlv_hdr_last;
uint32_t tid = DP_MAX_TIDS;
uint16_t peer_id;
struct dp_rx_desc *rx_desc;
struct rx_desc_pool *rx_desc_pool;
qdf_nbuf_t nbuf;
struct hal_buf_info buf_info;
struct hal_rx_msdu_list msdu_list;
uint16_t num_msdus;
struct buffer_addr_info cur_link_desc_addr_info = { 0 };
struct buffer_addr_info next_link_desc_addr_info = { 0 };
/* First field in REO Dst ring Desc is buffer_addr_info */
void *buf_addr_info = ring_desc;
qdf_nbuf_t head_nbuf = NULL;
qdf_nbuf_t tail_nbuf = NULL;
uint16_t msdu_processed = 0;
QDF_STATUS status;
bool ret;
peer_id = dp_rx_peer_metadata_peer_id_get(soc,
mpdu_desc_info->peer_meta_data);
more_msdu_link_desc:
hal_rx_msdu_list_get(soc->hal_soc, link_desc_va, &msdu_list,
&num_msdus);
for (i = 0; i < num_msdus; i++) {
rx_desc = soc->arch_ops.dp_rx_desc_cookie_2_va(
soc,
msdu_list.sw_cookie[i]);
qdf_assert_always(rx_desc);
/* all buffers from a MSDU link belong to same pdev */
pdev = dp_get_pdev_for_lmac_id(soc, rx_desc->pool_id);
nbuf = rx_desc->nbuf;
ret = dp_rx_desc_paddr_sanity_check(rx_desc,
msdu_list.paddr[i]);
if (!ret) {
DP_STATS_INC(soc, rx.err.nbuf_sanity_fail, 1);
rx_desc->in_err_state = 1;
continue;
}
rx_desc_pool = &soc->rx_desc_buf[rx_desc->pool_id];
dp_ipa_rx_buf_smmu_mapping_lock(soc);
dp_ipa_handle_rx_buf_smmu_mapping(soc, nbuf,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(soc->osdev, nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
QDF_NBUF_CB_RX_PKT_LEN(nbuf) = msdu_list.msdu_info[i].msdu_len;
rx_bufs_used++;
dp_rx_add_to_free_desc_list(&pdev->free_list_head,
&pdev->free_list_tail, rx_desc);
DP_RX_LIST_APPEND(head_nbuf, tail_nbuf, nbuf);
if (qdf_unlikely(msdu_list.msdu_info[i].msdu_flags &
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);
if (qdf_unlikely(head_nbuf != tail_nbuf)) {
nbuf = dp_rx_sg_create(soc, head_nbuf);
qdf_nbuf_set_is_frag(nbuf, 1);
DP_STATS_INC(soc, rx.err.reo_err_oor_sg_count, 1);
}
if (soc->features.pn_in_reo_dest) {
status = dp_rx_err_nbuf_pn_check(soc, ring_desc, nbuf);
if (QDF_IS_STATUS_ERROR(status)) {
DP_STATS_INC(soc, rx.err.pn_in_dest_check_fail,
1);
qdf_nbuf_free(nbuf);
goto process_next_msdu;
}
hal_rx_tlv_populate_mpdu_desc_info(soc->hal_soc,
qdf_nbuf_data(nbuf),
mpdu_desc_info);
peer_id = dp_rx_peer_metadata_peer_id_get(soc,
mpdu_desc_info->peer_meta_data);
if (mpdu_desc_info->bar_frame)
_dp_rx_bar_frame_handle(soc, nbuf,
mpdu_desc_info, tid,
HAL_REO_ERROR_DETECTED,
err_code);
}
switch (err_code) {
case HAL_REO_ERR_REGULAR_FRAME_2K_JUMP:
/*
* only first msdu, mpdu start description tlv valid?
* and use it for following msdu.
*/
if (hal_rx_msdu_end_first_msdu_get(soc->hal_soc,
rx_tlv_hdr_last))
tid = hal_rx_mpdu_start_tid_get(
soc->hal_soc,
rx_tlv_hdr_first);
dp_2k_jump_handle(soc, nbuf, rx_tlv_hdr_last,
peer_id, tid);
break;
case HAL_REO_ERR_REGULAR_FRAME_OOR:
dp_rx_oor_handle(soc, nbuf, peer_id, rx_tlv_hdr_last);
break;
default:
dp_err_rl("Non-support error code %d", err_code);
qdf_nbuf_free(nbuf);
}
process_next_msdu:
msdu_processed++;
head_nbuf = NULL;
tail_nbuf = NULL;
}
/*
* If the msdu's are spread across multiple link-descriptors,
* we cannot depend solely on the msdu_count(e.g., if msdu is
* spread across multiple buffers).Hence, it is
* necessary to check the next link_descriptor and release
* all the msdu's that are part of it.
*/
hal_rx_get_next_msdu_link_desc_buf_addr_info(
link_desc_va,
&next_link_desc_addr_info);
if (hal_rx_is_buf_addr_info_valid(
&next_link_desc_addr_info)) {
/* Clear the next link desc info for the current link_desc */
hal_rx_clear_next_msdu_link_desc_buf_addr_info(link_desc_va);
dp_rx_link_desc_return_by_addr(
soc,
buf_addr_info,
HAL_BM_ACTION_PUT_IN_IDLE_LIST);
hal_rx_buffer_addr_info_get_paddr(
&next_link_desc_addr_info,
&buf_info);
/* buffer_addr_info is the first element of ring_desc */
hal_rx_buf_cookie_rbm_get(soc->hal_soc,
(uint32_t *)&next_link_desc_addr_info,
&buf_info);
link_desc_va =
dp_rx_cookie_2_link_desc_va(soc, &buf_info);
cur_link_desc_addr_info = next_link_desc_addr_info;
buf_addr_info = &cur_link_desc_addr_info;
goto more_msdu_link_desc;
}
dp_rx_link_desc_return_by_addr(soc, buf_addr_info,
HAL_BM_ACTION_PUT_IN_IDLE_LIST);
if (qdf_unlikely(msdu_processed != mpdu_desc_info->msdu_count))
DP_STATS_INC(soc, rx.err.msdu_count_mismatch, 1);
return rx_bufs_used;
}
#ifdef DP_INVALID_PEER_ASSERT
#define DP_PDEV_INVALID_PEER_MSDU_CHECK(head, tail) \
do { \
qdf_assert_always(!(head)); \
qdf_assert_always(!(tail)); \
} while (0)
#else
#define DP_PDEV_INVALID_PEER_MSDU_CHECK(head, tail) /* no op */
#endif
/**
* dp_rx_chain_msdus() - Function to chain all msdus of a mpdu
* to pdev invalid peer list
*
* @soc: core DP main context
* @nbuf: Buffer pointer
* @rx_tlv_hdr: start of rx tlv header
* @mac_id: mac id
*
* Return: bool: true for last msdu of mpdu
*/
static bool
dp_rx_chain_msdus(struct dp_soc *soc, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr, uint8_t mac_id)
{
bool mpdu_done = false;
qdf_nbuf_t curr_nbuf = NULL;
qdf_nbuf_t tmp_nbuf = NULL;
/* TODO: Currently only single radio is supported, hence
* pdev hard coded to '0' index
*/
struct dp_pdev *dp_pdev = dp_get_pdev_for_lmac_id(soc, mac_id);
if (!dp_pdev) {
dp_rx_err_debug("%pK: pdev is null for mac_id = %d", soc, mac_id);
return mpdu_done;
}
/* if invalid peer SG list has max values free the buffers in list
* and treat current buffer as start of list
*
* current logic to detect the last buffer from attn_tlv is not reliable
* in OFDMA UL scenario hence add max buffers check to avoid list pile
* up
*/
if (!dp_pdev->first_nbuf ||
(dp_pdev->invalid_peer_head_msdu &&
QDF_NBUF_CB_RX_NUM_ELEMENTS_IN_LIST
(dp_pdev->invalid_peer_head_msdu) >= DP_MAX_INVALID_BUFFERS)) {
qdf_nbuf_set_rx_chfrag_start(nbuf, 1);
dp_pdev->ppdu_id = hal_rx_get_ppdu_id(soc->hal_soc,
rx_tlv_hdr);
dp_pdev->first_nbuf = true;
/* If the new nbuf received is the first msdu of the
* amsdu and there are msdus in the invalid peer msdu
* list, then let us free all the msdus of the invalid
* peer msdu list.
* This scenario can happen when we start receiving
* new a-msdu even before the previous a-msdu is completely
* received.
*/
curr_nbuf = dp_pdev->invalid_peer_head_msdu;
while (curr_nbuf) {
tmp_nbuf = curr_nbuf->next;
qdf_nbuf_free(curr_nbuf);
curr_nbuf = tmp_nbuf;
}
dp_pdev->invalid_peer_head_msdu = NULL;
dp_pdev->invalid_peer_tail_msdu = NULL;
dp_monitor_get_mpdu_status(dp_pdev, soc, rx_tlv_hdr);
}
if (dp_pdev->ppdu_id == hal_rx_attn_phy_ppdu_id_get(soc->hal_soc,
rx_tlv_hdr) &&
hal_rx_attn_msdu_done_get(soc->hal_soc, rx_tlv_hdr)) {
qdf_nbuf_set_rx_chfrag_end(nbuf, 1);
qdf_assert_always(dp_pdev->first_nbuf == true);
dp_pdev->first_nbuf = false;
mpdu_done = true;
}
/*
* For MCL, invalid_peer_head_msdu and invalid_peer_tail_msdu
* should be NULL here, add the checking for debugging purpose
* in case some corner case.
*/
DP_PDEV_INVALID_PEER_MSDU_CHECK(dp_pdev->invalid_peer_head_msdu,
dp_pdev->invalid_peer_tail_msdu);
DP_RX_LIST_APPEND(dp_pdev->invalid_peer_head_msdu,
dp_pdev->invalid_peer_tail_msdu,
nbuf);
return mpdu_done;
}
/**
* dp_rx_bar_frame_handle() - Function to handle err BAR frames
* @soc: core DP main context
* @ring_desc: Hal ring desc
* @rx_desc: dp rx desc
* @mpdu_desc_info: mpdu desc info
*
* Handle the error BAR frames received. Ensure the SOC level
* stats are updated based on the REO error code. The BAR frames
* are further processed by updating the Rx tids with the start
* sequence number (SSN) and BA window size. Desc is returned
* to the free desc list
*
* Return: none
*/
static void
dp_rx_bar_frame_handle(struct dp_soc *soc,
hal_ring_desc_t ring_desc,
struct dp_rx_desc *rx_desc,
struct hal_rx_mpdu_desc_info *mpdu_desc_info,
uint8_t err_status,
uint32_t err_code)
{
qdf_nbuf_t nbuf;
struct dp_pdev *pdev;
struct rx_desc_pool *rx_desc_pool;
uint8_t *rx_tlv_hdr;
uint32_t tid;
nbuf = rx_desc->nbuf;
rx_desc_pool = &soc->rx_desc_buf[rx_desc->pool_id];
dp_ipa_rx_buf_smmu_mapping_lock(soc);
dp_ipa_handle_rx_buf_smmu_mapping(soc, nbuf,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(soc->osdev, nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
rx_tlv_hdr = qdf_nbuf_data(nbuf);
tid = hal_rx_mpdu_start_tid_get(soc->hal_soc,
rx_tlv_hdr);
pdev = dp_get_pdev_for_lmac_id(soc, rx_desc->pool_id);
_dp_rx_bar_frame_handle(soc, nbuf, mpdu_desc_info, tid, err_status,
err_code);
dp_rx_link_desc_return(soc, ring_desc,
HAL_BM_ACTION_PUT_IN_IDLE_LIST);
dp_rx_buffer_pool_nbuf_free(soc, rx_desc->nbuf,
rx_desc->pool_id);
dp_rx_add_to_free_desc_list(&pdev->free_list_head,
&pdev->free_list_tail,
rx_desc);
}
#endif /* QCA_HOST_MODE_WIFI_DISABLED */
/**
* dp_2k_jump_handle() - Function to handle 2k jump exception
* on WBM ring
*
* @soc: core DP main context
* @nbuf: buffer pointer
* @rx_tlv_hdr: start of rx tlv header
* @peer_id: peer id of first msdu
* @tid: Tid for which exception occurred
*
* This function handles 2k jump violations arising out
* of receiving aggregates in non BA case. This typically
* may happen if aggregates are received on a QOS enabled TID
* while Rx window size is still initialized to value of 2. Or
* it may also happen if negotiated window size is 1 but peer
* sends aggregates.
*
*/
void
dp_2k_jump_handle(struct dp_soc *soc,
qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr,
uint16_t peer_id,
uint8_t tid)
{
struct dp_peer *peer = NULL;
struct dp_rx_tid *rx_tid = NULL;
uint32_t frame_mask = FRAME_MASK_IPV4_ARP;
peer = dp_peer_get_ref_by_id(soc, peer_id, DP_MOD_ID_RX_ERR);
if (!peer) {
dp_rx_err_info_rl("%pK: peer not found", soc);
goto free_nbuf;
}
if (tid >= DP_MAX_TIDS) {
dp_info_rl("invalid tid");
goto nbuf_deliver;
}
rx_tid = &peer->rx_tid[tid];
qdf_spin_lock_bh(&rx_tid->tid_lock);
/* only if BA session is active, allow send Delba */
if (rx_tid->ba_status != DP_RX_BA_ACTIVE) {
qdf_spin_unlock_bh(&rx_tid->tid_lock);
goto nbuf_deliver;
}
if (!rx_tid->delba_tx_status) {
rx_tid->delba_tx_retry++;
rx_tid->delba_tx_status = 1;
rx_tid->delba_rcode =
IEEE80211_REASON_QOS_SETUP_REQUIRED;
qdf_spin_unlock_bh(&rx_tid->tid_lock);
if (soc->cdp_soc.ol_ops->send_delba) {
DP_STATS_INC(soc, rx.err.rx_2k_jump_delba_sent, 1);
soc->cdp_soc.ol_ops->send_delba(
peer->vdev->pdev->soc->ctrl_psoc,
peer->vdev->vdev_id,
peer->mac_addr.raw,
tid,
rx_tid->delba_rcode,
CDP_DELBA_2K_JUMP);
}
} else {
qdf_spin_unlock_bh(&rx_tid->tid_lock);
}
nbuf_deliver:
if (dp_rx_deliver_special_frame(soc, peer, nbuf, frame_mask,
rx_tlv_hdr)) {
DP_STATS_INC(soc, rx.err.rx_2k_jump_to_stack, 1);
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
return;
}
free_nbuf:
if (peer)
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
DP_STATS_INC(soc, rx.err.rx_2k_jump_drop, 1);
qdf_nbuf_free(nbuf);
}
#if defined(QCA_WIFI_QCA6390) || defined(QCA_WIFI_QCA6490) || \
defined(QCA_WIFI_QCA6750) || defined(QCA_WIFI_KIWI)
/**
* dp_rx_null_q_handle_invalid_peer_id_exception() - to find exception
* @soc: pointer to dp_soc struct
* @pool_id: Pool id to find dp_pdev
* @rx_tlv_hdr: TLV header of received packet
* @nbuf: SKB
*
* In certain types of packets if peer_id is not correct then
* driver may not be able find. Try finding peer by addr_2 of
* received MPDU. If you find the peer then most likely sw_peer_id &
* ast_idx is corrupted.
*
* Return: True if you find the peer by addr_2 of received MPDU else false
*/
static bool
dp_rx_null_q_handle_invalid_peer_id_exception(struct dp_soc *soc,
uint8_t pool_id,
uint8_t *rx_tlv_hdr,
qdf_nbuf_t nbuf)
{
struct dp_peer *peer = NULL;
uint8_t *rx_pkt_hdr = hal_rx_pkt_hdr_get(soc->hal_soc, rx_tlv_hdr);
struct dp_pdev *pdev = dp_get_pdev_for_lmac_id(soc, pool_id);
struct ieee80211_frame *wh = (struct ieee80211_frame *)rx_pkt_hdr;
if (!pdev) {
dp_rx_err_debug("%pK: pdev is null for pool_id = %d",
soc, pool_id);
return false;
}
/*
* WAR- In certain types of packets if peer_id is not correct then
* driver may not be able find. Try finding peer by addr_2 of
* received MPDU
*/
if (wh)
peer = dp_peer_find_hash_find(soc, wh->i_addr2, 0,
DP_VDEV_ALL, DP_MOD_ID_RX_ERR);
if (peer) {
dp_verbose_debug("MPDU sw_peer_id & ast_idx is corrupted");
hal_rx_dump_pkt_tlvs(soc->hal_soc, rx_tlv_hdr,
QDF_TRACE_LEVEL_DEBUG);
DP_STATS_INC_PKT(soc, rx.err.rx_invalid_peer_id,
1, qdf_nbuf_len(nbuf));
qdf_nbuf_free(nbuf);
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
return true;
}
return false;
}
/**
* dp_rx_check_pkt_len() - Check for pktlen validity
* @soc: DP SOC context
* @pkt_len: computed length of the pkt from caller in bytes
*
* Return: true if pktlen > RX_BUFFER_SIZE, else return false
*
*/
static inline
bool dp_rx_check_pkt_len(struct dp_soc *soc, uint32_t pkt_len)
{
if (qdf_unlikely(pkt_len > RX_DATA_BUFFER_SIZE)) {
DP_STATS_INC_PKT(soc, rx.err.rx_invalid_pkt_len,
1, pkt_len);
return true;
} else {
return false;
}
}
#else
static inline bool
dp_rx_null_q_handle_invalid_peer_id_exception(struct dp_soc *soc,
uint8_t pool_id,
uint8_t *rx_tlv_hdr,
qdf_nbuf_t nbuf)
{
return false;
}
static inline
bool dp_rx_check_pkt_len(struct dp_soc *soc, uint32_t pkt_len)
{
return false;
}
#endif
#ifndef QCA_HOST_MODE_WIFI_DISABLED
/**
* dp_rx_null_q_desc_handle() - Function to handle NULL Queue
* descriptor violation on either a
* REO or WBM ring
*
* @soc: core DP main context
* @nbuf: buffer pointer
* @rx_tlv_hdr: start of rx tlv header
* @pool_id: mac id
* @peer: peer handle
*
* This function handles NULL queue descriptor violations arising out
* a missing REO queue for a given peer or a given TID. This typically
* may happen if a packet is received on a QOS enabled TID before the
* ADDBA negotiation for that TID, when the TID queue is setup. Or
* it may also happen for MC/BC frames if they are not routed to the
* non-QOS TID queue, in the absence of any other default TID queue.
* This error can show up both in a REO destination or WBM release ring.
*
* Return: QDF_STATUS_SUCCESS, if nbuf handled successfully. QDF status code
* if nbuf could not be handled or dropped.
*/
static QDF_STATUS
dp_rx_null_q_desc_handle(struct dp_soc *soc, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr, uint8_t pool_id,
struct dp_peer *peer)
{
uint32_t pkt_len;
uint16_t msdu_len;
struct dp_vdev *vdev;
uint8_t tid;
qdf_ether_header_t *eh;
struct hal_rx_msdu_metadata msdu_metadata;
uint16_t sa_idx = 0;
bool is_eapol;
bool enh_flag;
qdf_nbuf_set_rx_chfrag_start(nbuf,
hal_rx_msdu_end_first_msdu_get(soc->hal_soc,
rx_tlv_hdr));
qdf_nbuf_set_rx_chfrag_end(nbuf,
hal_rx_msdu_end_last_msdu_get(soc->hal_soc,
rx_tlv_hdr));
qdf_nbuf_set_da_mcbc(nbuf, hal_rx_msdu_end_da_is_mcbc_get(soc->hal_soc,
rx_tlv_hdr));
qdf_nbuf_set_da_valid(nbuf,
hal_rx_msdu_end_da_is_valid_get(soc->hal_soc,
rx_tlv_hdr));
qdf_nbuf_set_sa_valid(nbuf,
hal_rx_msdu_end_sa_is_valid_get(soc->hal_soc,
rx_tlv_hdr));
hal_rx_msdu_metadata_get(soc->hal_soc, rx_tlv_hdr, &msdu_metadata);
msdu_len = hal_rx_msdu_start_msdu_len_get(soc->hal_soc, rx_tlv_hdr);
pkt_len = msdu_len + msdu_metadata.l3_hdr_pad + soc->rx_pkt_tlv_size;
if (qdf_likely(!qdf_nbuf_is_frag(nbuf))) {
if (dp_rx_check_pkt_len(soc, pkt_len))
goto drop_nbuf;
/* Set length in nbuf */
qdf_nbuf_set_pktlen(
nbuf, qdf_min(pkt_len, (uint32_t)RX_DATA_BUFFER_SIZE));
qdf_assert_always(nbuf->data == rx_tlv_hdr);
}
/*
* Check if DMA completed -- msdu_done is the last bit
* to be written
*/
if (!hal_rx_attn_msdu_done_get(soc->hal_soc, rx_tlv_hdr)) {
dp_err_rl("MSDU DONE failure");
hal_rx_dump_pkt_tlvs(soc->hal_soc, rx_tlv_hdr,
QDF_TRACE_LEVEL_INFO);
qdf_assert(0);
}
if (!peer &&
dp_rx_null_q_handle_invalid_peer_id_exception(soc, pool_id,
rx_tlv_hdr, nbuf))
return QDF_STATUS_E_FAILURE;
if (!peer) {
bool mpdu_done = false;
struct dp_pdev *pdev = dp_get_pdev_for_lmac_id(soc, pool_id);
if (!pdev) {
dp_err_rl("pdev is null for pool_id = %d", pool_id);
return QDF_STATUS_E_FAILURE;
}
dp_err_rl("peer is NULL");
DP_STATS_INC_PKT(soc, rx.err.rx_invalid_peer, 1,
qdf_nbuf_len(nbuf));
/* QCN9000 has the support enabled */
if (qdf_unlikely(soc->wbm_release_desc_rx_sg_support)) {
mpdu_done = true;
nbuf->next = NULL;
/* Trigger invalid peer handler wrapper */
dp_rx_process_invalid_peer_wrapper(soc,
nbuf, mpdu_done, pool_id);
} else {
mpdu_done = dp_rx_chain_msdus(soc, nbuf, rx_tlv_hdr, pool_id);
/* Trigger invalid peer handler wrapper */
dp_rx_process_invalid_peer_wrapper(soc,
pdev->invalid_peer_head_msdu,
mpdu_done, pool_id);
}
if (mpdu_done) {
pdev->invalid_peer_head_msdu = NULL;
pdev->invalid_peer_tail_msdu = NULL;
}
return QDF_STATUS_E_FAILURE;
}
vdev = peer->vdev;
if (!vdev) {
dp_err_rl("Null vdev!");
DP_STATS_INC(soc, rx.err.invalid_vdev, 1);
goto drop_nbuf;
}
/*
* Advance the packet start pointer by total size of
* pre-header TLV's
*/
if (qdf_nbuf_is_frag(nbuf))
qdf_nbuf_pull_head(nbuf, soc->rx_pkt_tlv_size);
else
qdf_nbuf_pull_head(nbuf, (msdu_metadata.l3_hdr_pad +
soc->rx_pkt_tlv_size));
DP_STATS_INC_PKT(vdev, rx_i.null_q_desc_pkt, 1, qdf_nbuf_len(nbuf));
dp_vdev_peer_stats_update_protocol_cnt(vdev, nbuf, NULL, 0, 1);
if (hal_rx_msdu_end_sa_is_valid_get(soc->hal_soc, rx_tlv_hdr)) {
sa_idx = hal_rx_msdu_end_sa_idx_get(soc->hal_soc, rx_tlv_hdr);
if ((sa_idx < 0) ||
(sa_idx >= wlan_cfg_get_max_ast_idx(soc->wlan_cfg_ctx))) {
DP_STATS_INC(soc, rx.err.invalid_sa_da_idx, 1);
goto drop_nbuf;
}
}
if ((!soc->mec_fw_offload) &&
dp_rx_mcast_echo_check(soc, peer, rx_tlv_hdr, nbuf)) {
/* this is a looped back MCBC pkt, drop it */
DP_STATS_INC_PKT(peer, rx.mec_drop, 1,
qdf_nbuf_len(nbuf));
goto drop_nbuf;
}
/*
* In qwrap mode if the received packet matches with any of the vdev
* mac addresses, drop it. Donot receive multicast packets originated
* from any proxysta.
*/
if (check_qwrap_multicast_loopback(vdev, nbuf)) {
DP_STATS_INC_PKT(peer, rx.mec_drop, 1, qdf_nbuf_len(nbuf));
goto drop_nbuf;
}
if (qdf_unlikely((peer->nawds_enabled == true) &&
hal_rx_msdu_end_da_is_mcbc_get(soc->hal_soc,
rx_tlv_hdr))) {
dp_err_rl("free buffer for multicast packet");
DP_STATS_INC(peer, rx.nawds_mcast_drop, 1);
goto drop_nbuf;
}
if (!dp_wds_rx_policy_check(rx_tlv_hdr, vdev, peer)) {
dp_err_rl("mcast Policy Check Drop pkt");
DP_STATS_INC(peer, rx.policy_check_drop, 1);
goto drop_nbuf;
}
/* WDS Source Port Learning */
if (!soc->ast_offload_support &&
qdf_likely(vdev->rx_decap_type == htt_cmn_pkt_type_ethernet &&
vdev->wds_enabled))
dp_rx_wds_srcport_learn(soc, rx_tlv_hdr, peer, nbuf,
msdu_metadata);
if (hal_rx_is_unicast(soc->hal_soc, rx_tlv_hdr)) {
tid = hal_rx_tid_get(soc->hal_soc, rx_tlv_hdr);
if (!peer->rx_tid[tid].hw_qdesc_vaddr_unaligned)
dp_rx_tid_setup_wifi3(peer, tid, 1, IEEE80211_SEQ_MAX);
/* IEEE80211_SEQ_MAX indicates invalid start_seq */
}
eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf);
if (!peer->authorize) {
is_eapol = qdf_nbuf_is_ipv4_eapol_pkt(nbuf) ||
qdf_nbuf_is_ipv4_wapi_pkt(nbuf);
if (is_eapol) {
if (qdf_mem_cmp(eh->ether_dhost,
&vdev->mac_addr.raw[0],
QDF_MAC_ADDR_SIZE))
goto drop_nbuf;
} else {
goto drop_nbuf;
}
}
/*
* Drop packets in this path if cce_match is found. Packets will come
* in following path depending on whether tidQ is setup.
* 1. If tidQ is setup: WIFILI_HAL_RX_WBM_REO_PSH_RSN_ROUTE and
* cce_match = 1
* Packets with WIFILI_HAL_RX_WBM_REO_PSH_RSN_ROUTE are already
* dropped.
* 2. If tidQ is not setup: WIFILI_HAL_RX_WBM_REO_PSH_RSN_ERROR and
* cce_match = 1
* These packets need to be dropped and should not get delivered
* to stack.
*/
if (qdf_unlikely(dp_rx_err_cce_drop(soc, vdev, nbuf, rx_tlv_hdr))) {
goto drop_nbuf;
}
if (qdf_unlikely(vdev->rx_decap_type == htt_cmn_pkt_type_raw)) {
qdf_nbuf_set_next(nbuf, NULL);
dp_rx_deliver_raw(vdev, nbuf, peer);
} else {
enh_flag = vdev->pdev->enhanced_stats_en;
qdf_nbuf_set_next(nbuf, NULL);
DP_PEER_TO_STACK_INCC_PKT(peer, 1, qdf_nbuf_len(nbuf),
enh_flag);
/*
* Update the protocol tag in SKB based on
* CCE metadata
*/
dp_rx_update_protocol_tag(soc, vdev, nbuf, rx_tlv_hdr,
EXCEPTION_DEST_RING_ID,
true, true);
/* Update the flow tag in SKB based on FSE metadata */
dp_rx_update_flow_tag(soc, vdev, nbuf,
rx_tlv_hdr, true);
if (qdf_unlikely(hal_rx_msdu_end_da_is_mcbc_get(
soc->hal_soc, rx_tlv_hdr) &&
(vdev->rx_decap_type ==
htt_cmn_pkt_type_ethernet))) {
DP_PEER_MC_INCC_PKT(peer, 1, qdf_nbuf_len(nbuf),
enh_flag);
if (QDF_IS_ADDR_BROADCAST(eh->ether_dhost))
DP_PEER_BC_INCC_PKT(peer, 1, qdf_nbuf_len(nbuf),
enh_flag);
}
qdf_nbuf_set_exc_frame(nbuf, 1);
dp_rx_deliver_to_stack(soc, vdev, peer, nbuf, NULL);
}
return QDF_STATUS_SUCCESS;
drop_nbuf:
qdf_nbuf_free(nbuf);
return QDF_STATUS_E_FAILURE;
}
#endif /* QCA_HOST_MODE_WIFI_DISABLED */
/**
* dp_rx_process_rxdma_err() - Function to deliver rxdma unencrypted_err
* frames to OS or wifi parse errors.
* @soc: core DP main context
* @nbuf: buffer pointer
* @rx_tlv_hdr: start of rx tlv header
* @peer: peer reference
* @err_code: rxdma err code
* @mac_id: mac_id which is one of 3 mac_ids(Assuming mac_id and
* pool_id has same mapping)
*
* Return: None
*/
void
dp_rx_process_rxdma_err(struct dp_soc *soc, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr, struct dp_peer *peer,
uint8_t err_code, uint8_t mac_id)
{
uint32_t pkt_len, l2_hdr_offset;
uint16_t msdu_len;
struct dp_vdev *vdev;
qdf_ether_header_t *eh;
bool is_broadcast;
/*
* Check if DMA completed -- msdu_done is the last bit
* to be written
*/
if (!hal_rx_attn_msdu_done_get(soc->hal_soc, rx_tlv_hdr)) {
dp_err_rl("MSDU DONE failure");
hal_rx_dump_pkt_tlvs(soc->hal_soc, rx_tlv_hdr,
QDF_TRACE_LEVEL_INFO);
qdf_assert(0);
}
l2_hdr_offset = hal_rx_msdu_end_l3_hdr_padding_get(soc->hal_soc,
rx_tlv_hdr);
msdu_len = hal_rx_msdu_start_msdu_len_get(soc->hal_soc, rx_tlv_hdr);
pkt_len = msdu_len + l2_hdr_offset + soc->rx_pkt_tlv_size;
if (dp_rx_check_pkt_len(soc, pkt_len)) {
/* Drop & free packet */
qdf_nbuf_free(nbuf);
return;
}
/* Set length in nbuf */
qdf_nbuf_set_pktlen(nbuf, pkt_len);
qdf_nbuf_set_next(nbuf, NULL);
qdf_nbuf_set_rx_chfrag_start(nbuf, 1);
qdf_nbuf_set_rx_chfrag_end(nbuf, 1);
if (!peer) {
QDF_TRACE_ERROR_RL(QDF_MODULE_ID_DP, "peer is NULL");
DP_STATS_INC_PKT(soc, rx.err.rx_invalid_peer, 1,
qdf_nbuf_len(nbuf));
/* Trigger invalid peer handler wrapper */
dp_rx_process_invalid_peer_wrapper(soc, nbuf, true, mac_id);
return;
}
vdev = peer->vdev;
if (!vdev) {
dp_rx_err_info_rl("%pK: INVALID vdev %pK OR osif_rx", soc,
vdev);
/* Drop & free packet */
qdf_nbuf_free(nbuf);
DP_STATS_INC(soc, rx.err.invalid_vdev, 1);
return;
}
/*
* Advance the packet start pointer by total size of
* pre-header TLV's
*/
dp_rx_skip_tlvs(soc, nbuf, l2_hdr_offset);
if (err_code == HAL_RXDMA_ERR_WIFI_PARSE) {
uint8_t *pkt_type;
pkt_type = qdf_nbuf_data(nbuf) + (2 * QDF_MAC_ADDR_SIZE);
if (*(uint16_t *)pkt_type == htons(QDF_ETH_TYPE_8021Q)) {
if (*(uint16_t *)(pkt_type + DP_SKIP_VLAN) ==
htons(QDF_LLC_STP)) {
DP_STATS_INC(vdev->pdev, vlan_tag_stp_cnt, 1);
goto process_mesh;
} else {
goto process_rx;
}
}
}
if (vdev->rx_decap_type == htt_cmn_pkt_type_raw)
goto process_mesh;
/*
* WAPI cert AP sends rekey frames as unencrypted.
* Thus RXDMA will report unencrypted frame error.
* To pass WAPI cert case, SW needs to pass unencrypted
* rekey frame to stack.
*/
if (qdf_nbuf_is_ipv4_wapi_pkt(nbuf)) {
goto process_rx;
}
/*
* In dynamic WEP case rekey frames are not encrypted
* similar to WAPI. Allow EAPOL when 8021+wep is enabled and
* key install is already done
*/
if ((vdev->sec_type == cdp_sec_type_wep104) &&
(qdf_nbuf_is_ipv4_eapol_pkt(nbuf)))
goto process_rx;
process_mesh:
if (!vdev->mesh_vdev && err_code == HAL_RXDMA_ERR_UNENCRYPTED) {
qdf_nbuf_free(nbuf);
DP_STATS_INC(soc, rx.err.invalid_vdev, 1);
return;
}
if (vdev->mesh_vdev) {
if (dp_rx_filter_mesh_packets(vdev, nbuf, rx_tlv_hdr)
== QDF_STATUS_SUCCESS) {
dp_rx_err_info("%pK: mesh pkt filtered", soc);
DP_STATS_INC(vdev->pdev, dropped.mesh_filter, 1);
qdf_nbuf_free(nbuf);
return;
}
dp_rx_fill_mesh_stats(vdev, nbuf, rx_tlv_hdr, peer);
}
process_rx:
if (qdf_unlikely(hal_rx_msdu_end_da_is_mcbc_get(soc->hal_soc,
rx_tlv_hdr) &&
(vdev->rx_decap_type ==
htt_cmn_pkt_type_ethernet))) {
eh = (qdf_ether_header_t *)qdf_nbuf_data(nbuf);
is_broadcast = (QDF_IS_ADDR_BROADCAST
(eh->ether_dhost)) ? 1 : 0 ;
DP_STATS_INC_PKT(peer, rx.multicast, 1, qdf_nbuf_len(nbuf));
if (is_broadcast) {
DP_STATS_INC_PKT(peer, rx.bcast, 1,
qdf_nbuf_len(nbuf));
}
}
if (qdf_unlikely(vdev->rx_decap_type == htt_cmn_pkt_type_raw)) {
dp_rx_deliver_raw(vdev, nbuf, peer);
} else {
/* Update the protocol tag in SKB based on CCE metadata */
dp_rx_update_protocol_tag(soc, vdev, nbuf, rx_tlv_hdr,
EXCEPTION_DEST_RING_ID, true, true);
/* Update the flow tag in SKB based on FSE metadata */
dp_rx_update_flow_tag(soc, vdev, nbuf, rx_tlv_hdr, true);
DP_STATS_INC(peer, rx.to_stack.num, 1);
qdf_nbuf_set_exc_frame(nbuf, 1);
dp_rx_deliver_to_stack(soc, vdev, peer, nbuf, NULL);
}
return;
}
/**
* dp_rx_process_mic_error(): Function to pass mic error indication to umac
* @soc: core DP main context
* @nbuf: buffer pointer
* @rx_tlv_hdr: start of rx tlv header
* @peer: peer handle
*
* return: void
*/
void dp_rx_process_mic_error(struct dp_soc *soc, qdf_nbuf_t nbuf,
uint8_t *rx_tlv_hdr, struct dp_peer *peer)
{
struct dp_vdev *vdev = NULL;
struct dp_pdev *pdev = NULL;
struct ol_if_ops *tops = NULL;
uint16_t rx_seq, fragno;
uint8_t is_raw;
unsigned int tid;
QDF_STATUS status;
struct cdp_rx_mic_err_info mic_failure_info;
if (!hal_rx_msdu_end_first_msdu_get(soc->hal_soc,
rx_tlv_hdr))
return;
if (!peer) {
dp_info_rl("peer not found");
goto fail;
}
vdev = peer->vdev;
if (!vdev) {
dp_info_rl("VDEV not found");
goto fail;
}
pdev = vdev->pdev;
if (!pdev) {
dp_info_rl("PDEV not found");
goto fail;
}
is_raw = HAL_IS_DECAP_FORMAT_RAW(soc->hal_soc, qdf_nbuf_data(nbuf));
if (is_raw) {
fragno = dp_rx_frag_get_mpdu_frag_number(soc,
qdf_nbuf_data(nbuf));
/* Can get only last fragment */
if (fragno) {
tid = hal_rx_mpdu_start_tid_get(soc->hal_soc,
qdf_nbuf_data(nbuf));
rx_seq = hal_rx_get_rx_sequence(soc->hal_soc,
qdf_nbuf_data(nbuf));
status = dp_rx_defrag_add_last_frag(soc, peer,
tid, rx_seq, nbuf);
dp_info_rl("Frag pkt seq# %d frag# %d consumed "
"status %d !", rx_seq, fragno, status);
return;
}
}
if (hal_rx_mpdu_get_addr1(soc->hal_soc, qdf_nbuf_data(nbuf),
&mic_failure_info.da_mac_addr.bytes[0])) {
dp_err_rl("Failed to get da_mac_addr");
goto fail;
}
if (hal_rx_mpdu_get_addr2(soc->hal_soc, qdf_nbuf_data(nbuf),
&mic_failure_info.ta_mac_addr.bytes[0])) {
dp_err_rl("Failed to get ta_mac_addr");
goto fail;
}
mic_failure_info.key_id = 0;
mic_failure_info.multicast =
IEEE80211_IS_MULTICAST(mic_failure_info.da_mac_addr.bytes);
qdf_mem_zero(mic_failure_info.tsc, MIC_SEQ_CTR_SIZE);
mic_failure_info.frame_type = cdp_rx_frame_type_802_11;
mic_failure_info.data = NULL;
mic_failure_info.vdev_id = vdev->vdev_id;
tops = pdev->soc->cdp_soc.ol_ops;
if (tops->rx_mic_error)
tops->rx_mic_error(soc->ctrl_psoc, pdev->pdev_id,
&mic_failure_info);
fail:
qdf_nbuf_free(nbuf);
return;
}
/*
* dp_rx_deliver_to_osif_stack() - function to deliver rx pkts to stack
* @soc: DP soc
* @vdv: DP vdev handle
* @peer: pointer to the peer object
* @nbuf: skb list head
* @tail: skb list tail
* @is_eapol: eapol pkt check
*
* Return: None
*/
#ifdef QCA_SUPPORT_EAPOL_OVER_CONTROL_PORT
static inline void
dp_rx_deliver_to_osif_stack(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
qdf_nbuf_t nbuf,
qdf_nbuf_t tail,
bool is_eapol)
{
if (is_eapol && soc->eapol_over_control_port)
dp_rx_eapol_deliver_to_stack(soc, vdev, peer, nbuf, NULL);
else
dp_rx_deliver_to_stack(soc, vdev, peer, nbuf, NULL);
}
#else
static inline void
dp_rx_deliver_to_osif_stack(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
qdf_nbuf_t nbuf,
qdf_nbuf_t tail,
bool is_eapol)
{
dp_rx_deliver_to_stack(soc, vdev, peer, nbuf, NULL);
}
#endif
#ifdef WLAN_SUPPORT_RX_PROTOCOL_TYPE_TAG
#if defined(WLAN_FEATURE_11BE_MLO) && defined(WLAN_MLO_MULTI_CHIP) && \
defined(WLAN_MCAST_MLO)
static bool dp_rx_igmp_handler(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
qdf_nbuf_t nbuf)
{
if (soc->arch_ops.dp_rx_mcast_handler) {
if (soc->arch_ops.dp_rx_mcast_handler(soc, vdev, peer, nbuf))
return true;
}
return false;
}
#else
static bool dp_rx_igmp_handler(struct dp_soc *soc,
struct dp_vdev *vdev,
struct dp_peer *peer,
qdf_nbuf_t nbuf)
{
return false;
}
#endif
/**
* dp_rx_err_route_hdl() - Function to send EAPOL frames to stack
* Free any other packet which comes in
* this path.
*
* @soc: core DP main context
* @nbuf: buffer pointer
* @peer: peer handle
* @rx_tlv_hdr: start of rx tlv header
* @err_src: rxdma/reo
*
* This function indicates EAPOL frame received in wbm error ring to stack.
* Any other frame should be dropped.
*
* Return: SUCCESS if delivered to stack
*/
static void
dp_rx_err_route_hdl(struct dp_soc *soc, qdf_nbuf_t nbuf,
struct dp_peer *peer, uint8_t *rx_tlv_hdr,
enum hal_rx_wbm_error_source err_src)
{
uint32_t pkt_len;
uint16_t msdu_len;
struct dp_vdev *vdev;
struct hal_rx_msdu_metadata msdu_metadata;
bool is_eapol;
hal_rx_msdu_metadata_get(soc->hal_soc, rx_tlv_hdr, &msdu_metadata);
msdu_len = hal_rx_msdu_start_msdu_len_get(soc->hal_soc, rx_tlv_hdr);
pkt_len = msdu_len + msdu_metadata.l3_hdr_pad + soc->rx_pkt_tlv_size;
if (qdf_likely(!qdf_nbuf_is_frag(nbuf))) {
if (dp_rx_check_pkt_len(soc, pkt_len))
goto drop_nbuf;
/* Set length in nbuf */
qdf_nbuf_set_pktlen(
nbuf, qdf_min(pkt_len, (uint32_t)RX_DATA_BUFFER_SIZE));
qdf_assert_always(nbuf->data == rx_tlv_hdr);
}
/*
* Check if DMA completed -- msdu_done is the last bit
* to be written
*/
if (!hal_rx_attn_msdu_done_get(soc->hal_soc, rx_tlv_hdr)) {
dp_err_rl("MSDU DONE failure");
hal_rx_dump_pkt_tlvs(soc->hal_soc, rx_tlv_hdr,
QDF_TRACE_LEVEL_INFO);
qdf_assert(0);
}
if (!peer)
goto drop_nbuf;
vdev = peer->vdev;
if (!vdev) {
dp_err_rl("Null vdev!");
DP_STATS_INC(soc, rx.err.invalid_vdev, 1);
goto drop_nbuf;
}
/*
* Advance the packet start pointer by total size of
* pre-header TLV's
*/
if (qdf_nbuf_is_frag(nbuf))
qdf_nbuf_pull_head(nbuf, soc->rx_pkt_tlv_size);
else
qdf_nbuf_pull_head(nbuf, (msdu_metadata.l3_hdr_pad +
soc->rx_pkt_tlv_size));
if (dp_rx_igmp_handler(soc, vdev, peer, nbuf))
return;
dp_vdev_peer_stats_update_protocol_cnt(vdev, nbuf, NULL, 0, 1);
/*
* Indicate EAPOL frame to stack only when vap mac address
* matches the destination address.
*/
is_eapol = qdf_nbuf_is_ipv4_eapol_pkt(nbuf);
if (is_eapol || qdf_nbuf_is_ipv4_wapi_pkt(nbuf)) {
qdf_ether_header_t *eh =
(qdf_ether_header_t *)qdf_nbuf_data(nbuf);
if (qdf_mem_cmp(eh->ether_dhost, &vdev->mac_addr.raw[0],
QDF_MAC_ADDR_SIZE) == 0) {
DP_STATS_INC_PKT(vdev, rx_i.routed_eapol_pkt, 1,
qdf_nbuf_len(nbuf));
/*
* Update the protocol tag in SKB based on
* CCE metadata.
*/
dp_rx_update_protocol_tag(soc, vdev, nbuf, rx_tlv_hdr,
EXCEPTION_DEST_RING_ID,
true, true);
/* Update the flow tag in SKB based on FSE metadata */
dp_rx_update_flow_tag(soc, vdev, nbuf, rx_tlv_hdr,
true);
DP_PEER_TO_STACK_INCC_PKT(peer, 1, qdf_nbuf_len(nbuf),
vdev->pdev->enhanced_stats_en);
qdf_nbuf_set_exc_frame(nbuf, 1);
qdf_nbuf_set_next(nbuf, NULL);
dp_rx_deliver_to_osif_stack(soc, vdev, peer, nbuf,
NULL, is_eapol);
return;
}
}
drop_nbuf:
DP_STATS_INCC(soc, rx.reo2rel_route_drop, 1,
err_src == HAL_RX_WBM_ERR_SRC_REO);
DP_STATS_INCC(soc, rx.rxdma2rel_route_drop, 1,
err_src == HAL_RX_WBM_ERR_SRC_RXDMA);
qdf_nbuf_free(nbuf);
}
#else
static void
dp_rx_err_route_hdl(struct dp_soc *soc, qdf_nbuf_t nbuf,
struct dp_peer *peer, uint8_t *rx_tlv_hdr,
enum hal_rx_wbm_error_source err_src)
{
DP_STATS_INCC(soc, rx.reo2rel_route_drop, 1,
err_src == HAL_RX_WBM_ERR_SRC_REO);
DP_STATS_INCC(soc, rx.rxdma2rel_route_drop, 1,
err_src == HAL_RX_WBM_ERR_SRC_RXDMA);
qdf_nbuf_free(nbuf);
}
#endif
#ifndef QCA_HOST_MODE_WIFI_DISABLED
#ifdef DP_RX_DESC_COOKIE_INVALIDATE
/**
* dp_rx_link_cookie_check() - Validate link desc cookie
* @ring_desc: ring descriptor
*
* Return: qdf status
*/
static inline QDF_STATUS
dp_rx_link_cookie_check(hal_ring_desc_t ring_desc)
{
if (qdf_unlikely(HAL_RX_REO_BUF_LINK_COOKIE_INVALID_GET(ring_desc)))
return QDF_STATUS_E_FAILURE;
return QDF_STATUS_SUCCESS;
}
/**
* dp_rx_link_cookie_invalidate() - Invalidate link desc cookie
* @ring_desc: ring descriptor
*
* Return: None
*/
static inline void
dp_rx_link_cookie_invalidate(hal_ring_desc_t ring_desc)
{
HAL_RX_REO_BUF_LINK_COOKIE_INVALID_SET(ring_desc);
}
#else
static inline QDF_STATUS
dp_rx_link_cookie_check(hal_ring_desc_t ring_desc)
{
return QDF_STATUS_SUCCESS;
}
static inline void
dp_rx_link_cookie_invalidate(hal_ring_desc_t ring_desc)
{
}
#endif
#ifdef WLAN_FEATURE_DP_RX_RING_HISTORY
/**
* dp_rx_err_ring_record_entry() - Record rx err ring history
* @soc: Datapath soc structure
* @paddr: paddr of the buffer in RX err ring
* @sw_cookie: SW cookie of the buffer in RX err ring
* @rbm: Return buffer manager of the buffer in RX err ring
*
* Returns: None
*/
static inline void
dp_rx_err_ring_record_entry(struct dp_soc *soc, uint64_t paddr,
uint32_t sw_cookie, uint8_t rbm)
{
struct dp_buf_info_record *record;
uint32_t idx;
if (qdf_unlikely(!soc->rx_err_ring_history))
return;
idx = dp_history_get_next_index(&soc->rx_err_ring_history->index,
DP_RX_ERR_HIST_MAX);
/* No NULL check needed for record since its an array */
record = &soc->rx_err_ring_history->entry[idx];
record->timestamp = qdf_get_log_timestamp();
record->hbi.paddr = paddr;
record->hbi.sw_cookie = sw_cookie;
record->hbi.rbm = rbm;
}
#else
static inline void
dp_rx_err_ring_record_entry(struct dp_soc *soc, uint64_t paddr,
uint32_t sw_cookie, uint8_t rbm)
{
}
#endif
#ifdef HANDLE_RX_REROUTE_ERR
static int dp_rx_err_handle_msdu_buf(struct dp_soc *soc,
hal_ring_desc_t ring_desc)
{
int lmac_id = DP_INVALID_LMAC_ID;
struct dp_rx_desc *rx_desc;
struct hal_buf_info hbi;
struct dp_pdev *pdev;
hal_rx_reo_buf_paddr_get(soc->hal_soc, ring_desc, &hbi);
rx_desc = dp_rx_cookie_2_va_rxdma_buf(soc, hbi.sw_cookie);
/* sanity */
if (!rx_desc) {
DP_STATS_INC(soc, rx.err.reo_err_msdu_buf_invalid_cookie, 1);
goto assert_return;
}
if (!rx_desc->nbuf)
goto assert_return;
dp_rx_err_ring_record_entry(soc, hbi.paddr,
hbi.sw_cookie,
hal_rx_ret_buf_manager_get(soc->hal_soc,
ring_desc));
if (hbi.paddr != qdf_nbuf_get_frag_paddr(rx_desc->nbuf, 0)) {
DP_STATS_INC(soc, rx.err.nbuf_sanity_fail, 1);
rx_desc->in_err_state = 1;
goto assert_return;
}
/* After this point the rx_desc and nbuf are valid */
dp_ipa_rx_buf_smmu_mapping_lock(soc);
qdf_assert_always(!rx_desc->unmapped);
dp_ipa_handle_rx_buf_smmu_mapping(soc,
rx_desc->nbuf,
RX_DATA_BUFFER_SIZE,
false);
qdf_nbuf_unmap_nbytes_single(soc->osdev,
rx_desc->nbuf,
QDF_DMA_FROM_DEVICE,
RX_DATA_BUFFER_SIZE);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
dp_rx_buffer_pool_nbuf_free(soc, rx_desc->nbuf,
rx_desc->pool_id);
pdev = dp_get_pdev_for_lmac_id(soc, rx_desc->pool_id);
lmac_id = rx_desc->pool_id;
dp_rx_add_to_free_desc_list(&pdev->free_list_head,
&pdev->free_list_tail,
rx_desc);
return lmac_id;
assert_return:
qdf_assert(0);
return lmac_id;
}
static int dp_rx_err_exception(struct dp_soc *soc, hal_ring_desc_t ring_desc)
{
int ret;
uint64_t cur_time_stamp;
DP_STATS_INC(soc, rx.err.reo_err_msdu_buf_rcved, 1);
/* Recover if overall error count exceeds threshold */
if (soc->stats.rx.err.reo_err_msdu_buf_rcved >
DP_MAX_REG_RX_ROUTING_ERRS_THRESHOLD) {
dp_err("pkt threshold breached! reo_err_msdu_buf_rcved %u first err pkt time_stamp %llu",
soc->stats.rx.err.reo_err_msdu_buf_rcved,
soc->rx_route_err_start_pkt_ts);
qdf_trigger_self_recovery(NULL, QDF_RX_REG_PKT_ROUTE_ERR);
}
cur_time_stamp = qdf_get_log_timestamp_usecs();
if (!soc->rx_route_err_start_pkt_ts)
soc->rx_route_err_start_pkt_ts = cur_time_stamp;
/* Recover if threshold number of packets received in threshold time */
if ((cur_time_stamp - soc->rx_route_err_start_pkt_ts) >
DP_RX_ERR_ROUTE_TIMEOUT_US) {
soc->rx_route_err_start_pkt_ts = cur_time_stamp;
if (soc->rx_route_err_in_window >
DP_MAX_REG_RX_ROUTING_ERRS_IN_TIMEOUT) {
qdf_trigger_self_recovery(NULL,
QDF_RX_REG_PKT_ROUTE_ERR);
dp_err("rate threshold breached! reo_err_msdu_buf_rcved %u first err pkt time_stamp %llu",
soc->stats.rx.err.reo_err_msdu_buf_rcved,
soc->rx_route_err_start_pkt_ts);
} else {
soc->rx_route_err_in_window = 1;
}
} else {
soc->rx_route_err_in_window++;
}
ret = dp_rx_err_handle_msdu_buf(soc, ring_desc);
return ret;
}
#else /* HANDLE_RX_REROUTE_ERR */
static int dp_rx_err_exception(struct dp_soc *soc, hal_ring_desc_t ring_desc)
{
qdf_assert_always(0);
return DP_INVALID_LMAC_ID;
}
#endif /* HANDLE_RX_REROUTE_ERR */
/**
* dp_rx_err_is_pn_check_needed() - Check if the packet number check is needed
* for this frame received in REO error ring.
* @soc: Datapath SOC handle
* @error: REO error detected or not
* @error_code: Error code in case of REO error
*
* Return: true if pn check if needed in software,
* false, if pn check if not needed.
*/
static inline bool
dp_rx_err_is_pn_check_needed(struct dp_soc *soc, uint8_t error,
uint32_t error_code)
{
return (soc->features.pn_in_reo_dest &&
(error == HAL_REO_ERROR_DETECTED &&
(hal_rx_reo_is_2k_jump(error_code) ||
hal_rx_reo_is_oor_error(error_code) ||
hal_rx_reo_is_bar_oor_2k_jump(error_code))));
}
uint32_t
dp_rx_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
hal_ring_handle_t hal_ring_hdl, uint32_t quota)
{
hal_ring_desc_t ring_desc;
hal_soc_handle_t hal_soc;
uint32_t count = 0;
uint32_t rx_bufs_used = 0;
uint32_t rx_bufs_reaped[MAX_PDEV_CNT] = { 0 };
uint8_t mac_id = 0;
uint8_t buf_type;
uint8_t err_status;
struct hal_rx_mpdu_desc_info mpdu_desc_info;
struct hal_buf_info hbi;
struct dp_pdev *dp_pdev;
struct dp_srng *dp_rxdma_srng;
struct rx_desc_pool *rx_desc_pool;
void *link_desc_va;
struct hal_rx_msdu_list msdu_list; /* MSDU's per MPDU */
uint16_t num_msdus;
struct dp_rx_desc *rx_desc = NULL;
QDF_STATUS status;
bool ret;
uint32_t error_code = 0;
bool sw_pn_check_needed;
/* Debug -- Remove later */
qdf_assert(soc && hal_ring_hdl);
hal_soc = soc->hal_soc;
/* Debug -- Remove later */
qdf_assert(hal_soc);
if (qdf_unlikely(dp_srng_access_start(int_ctx, soc, hal_ring_hdl))) {
/* TODO */
/*
* Need API to convert from hal_ring pointer to
* Ring Type / Ring Id combo
*/
DP_STATS_INC(soc, rx.err.hal_ring_access_fail, 1);
dp_rx_err_err("%pK: HAL RING Access Failed -- %pK", soc,
hal_ring_hdl);
goto done;
}
while (qdf_likely(quota-- && (ring_desc =
hal_srng_dst_peek(hal_soc,
hal_ring_hdl)))) {
DP_STATS_INC(soc, rx.err_ring_pkts, 1);
err_status = hal_rx_err_status_get(hal_soc, ring_desc);
buf_type = hal_rx_reo_buf_type_get(hal_soc, ring_desc);
if (err_status == HAL_REO_ERROR_DETECTED)
error_code = hal_rx_get_reo_error_code(hal_soc,
ring_desc);
qdf_mem_set(&mpdu_desc_info, sizeof(mpdu_desc_info), 0);
sw_pn_check_needed = dp_rx_err_is_pn_check_needed(soc,
err_status,
error_code);
if (!sw_pn_check_needed) {
/*
* MPDU desc info will be present in the REO desc
* only in the below scenarios
* 1) pn_in_dest_disabled: always
* 2) pn_in_dest enabled: All cases except 2k-jup
* and OOR errors
*/
hal_rx_mpdu_desc_info_get(hal_soc, ring_desc,
&mpdu_desc_info);
}
if (HAL_RX_REO_DESC_MSDU_COUNT_GET(ring_desc) == 0)
goto next_entry;
/*
* For REO error ring, only MSDU LINK DESC is expected.
* Handle HAL_RX_REO_MSDU_BUF_ADDR_TYPE exception case.
*/
if (qdf_unlikely(buf_type != HAL_RX_REO_MSDU_LINK_DESC_TYPE)) {
int lmac_id;
lmac_id = dp_rx_err_exception(soc, ring_desc);
if (lmac_id >= 0)
rx_bufs_reaped[lmac_id] += 1;
goto next_entry;
}
hal_rx_buf_cookie_rbm_get(hal_soc, (uint32_t *)ring_desc,
&hbi);
/*
* check for the magic number in the sw cookie
*/
qdf_assert_always((hbi.sw_cookie >> LINK_DESC_ID_SHIFT) &
soc->link_desc_id_start);
status = dp_rx_link_cookie_check(ring_desc);
if (qdf_unlikely(QDF_IS_STATUS_ERROR(status))) {
DP_STATS_INC(soc, rx.err.invalid_link_cookie, 1);
break;
}
hal_rx_reo_buf_paddr_get(soc->hal_soc, ring_desc, &hbi);
link_desc_va = dp_rx_cookie_2_link_desc_va(soc, &hbi);
hal_rx_msdu_list_get(soc->hal_soc, link_desc_va, &msdu_list,
&num_msdus);
dp_rx_err_ring_record_entry(soc, msdu_list.paddr[0],
msdu_list.sw_cookie[0],
msdu_list.rbm[0]);
// TODO - BE- Check if the RBM is to be checked for all chips
if (qdf_unlikely((msdu_list.rbm[0] !=
dp_rx_get_rx_bm_id(soc)) &&
(msdu_list.rbm[0] !=
soc->idle_link_bm_id) &&
(msdu_list.rbm[0] !=
dp_rx_get_defrag_bm_id(soc)))) {
/* TODO */
/* Call appropriate handler */
if (!wlan_cfg_get_dp_soc_nss_cfg(soc->wlan_cfg_ctx)) {
DP_STATS_INC(soc, rx.err.invalid_rbm, 1);
dp_rx_err_err("%pK: Invalid RBM %d",
soc, msdu_list.rbm[0]);
}
/* Return link descriptor through WBM ring (SW2WBM)*/
dp_rx_link_desc_return(soc, ring_desc,
HAL_BM_ACTION_RELEASE_MSDU_LIST);
goto next_entry;
}
rx_desc = soc->arch_ops.dp_rx_desc_cookie_2_va(
soc,
msdu_list.sw_cookie[0]);
qdf_assert_always(rx_desc);
mac_id = rx_desc->pool_id;
if (sw_pn_check_needed) {
goto process_reo_error_code;
}
if (mpdu_desc_info.bar_frame) {
qdf_assert_always(mpdu_desc_info.msdu_count == 1);
dp_rx_bar_frame_handle(soc, ring_desc, rx_desc,
&mpdu_desc_info, err_status,
error_code);
rx_bufs_reaped[mac_id] += 1;
goto next_entry;
}
if (mpdu_desc_info.mpdu_flags & HAL_MPDU_F_FRAGMENT) {
/*
* We only handle one msdu per link desc for fragmented
* case. We drop the msdus and release the link desc
* back if there are more than one msdu in link desc.
*/
if (qdf_unlikely(num_msdus > 1)) {
count = dp_rx_msdus_drop(soc, ring_desc,
&mpdu_desc_info,
&mac_id, quota);
rx_bufs_reaped[mac_id] += count;
goto next_entry;
}
/*
* this is a unlikely scenario where the host is reaping
* a descriptor which it already reaped just a while ago
* but is yet to replenish it back to HW.
* In this case host will dump the last 128 descriptors
* including the software descriptor rx_desc and assert.
*/
if (qdf_unlikely(!rx_desc->in_use)) {
DP_STATS_INC(soc, rx.err.hal_reo_dest_dup, 1);
dp_info_rl("Reaping rx_desc not in use!");
dp_rx_dump_info_and_assert(soc, hal_ring_hdl,
ring_desc, rx_desc);
/* ignore duplicate RX desc and continue */
/* Pop out the descriptor */
goto next_entry;
}
ret = dp_rx_desc_paddr_sanity_check(rx_desc,
msdu_list.paddr[0]);
if (!ret) {
DP_STATS_INC(soc, rx.err.nbuf_sanity_fail, 1);
rx_desc->in_err_state = 1;
goto next_entry;
}
count = dp_rx_frag_handle(soc,
ring_desc, &mpdu_desc_info,
rx_desc, &mac_id, quota);
rx_bufs_reaped[mac_id] += count;
DP_STATS_INC(soc, rx.rx_frags, 1);
goto next_entry;
}
process_reo_error_code:
/*
* Expect REO errors to be handled after this point
*/
qdf_assert_always(err_status == HAL_REO_ERROR_DETECTED);
dp_info_rl("Got pkt with REO ERROR: %d", error_code);
switch (error_code) {
case HAL_REO_ERR_PN_CHECK_FAILED:
case HAL_REO_ERR_PN_ERROR_HANDLING_FLAG_SET:
DP_STATS_INC(soc, rx.err.reo_error[error_code], 1);
dp_pdev = dp_get_pdev_for_lmac_id(soc, mac_id);
if (dp_pdev)
DP_STATS_INC(dp_pdev, err.reo_error, 1);
count = dp_rx_pn_error_handle(soc,
ring_desc,
&mpdu_desc_info, &mac_id,
quota);
rx_bufs_reaped[mac_id] += count;
break;
case HAL_REO_ERR_REGULAR_FRAME_2K_JUMP:
case HAL_REO_ERR_2K_ERROR_HANDLING_FLAG_SET:
case HAL_REO_ERR_BAR_FRAME_2K_JUMP:
DP_STATS_INC(soc, rx.err.reo_error[error_code], 1);
dp_pdev = dp_get_pdev_for_lmac_id(soc, mac_id);
if (dp_pdev)
DP_STATS_INC(dp_pdev, err.reo_error, 1);
count = dp_rx_reo_err_entry_process(
soc,
ring_desc,
&mpdu_desc_info,
link_desc_va,
HAL_REO_ERR_REGULAR_FRAME_2K_JUMP);
rx_bufs_reaped[mac_id] += count;
break;
case HAL_REO_ERR_REGULAR_FRAME_OOR:
case HAL_REO_ERR_BAR_FRAME_OOR:
DP_STATS_INC(soc, rx.err.reo_error[error_code], 1);
dp_pdev = dp_get_pdev_for_lmac_id(soc, mac_id);
if (dp_pdev)
DP_STATS_INC(dp_pdev, err.reo_error, 1);
count = dp_rx_reo_err_entry_process(
soc,
ring_desc,
&mpdu_desc_info,
link_desc_va,
HAL_REO_ERR_REGULAR_FRAME_OOR);
rx_bufs_reaped[mac_id] += count;
break;
case HAL_REO_ERR_QUEUE_DESC_ADDR_0:
case HAL_REO_ERR_QUEUE_DESC_INVALID:
case HAL_REO_ERR_AMPDU_IN_NON_BA:
case HAL_REO_ERR_NON_BA_DUPLICATE:
case HAL_REO_ERR_BA_DUPLICATE:
case HAL_REO_ERR_BAR_FRAME_NO_BA_SESSION:
case HAL_REO_ERR_BAR_FRAME_SN_EQUALS_SSN:
case HAL_REO_ERR_QUEUE_DESC_BLOCKED_SET:
DP_STATS_INC(soc, rx.err.reo_error[error_code], 1);
count = dp_rx_msdus_drop(soc, ring_desc,
&mpdu_desc_info,
&mac_id, quota);
rx_bufs_reaped[mac_id] += count;
break;
default:
/* Assert if unexpected error type */
qdf_assert_always(0);
}
next_entry:
dp_rx_link_cookie_invalidate(ring_desc);
hal_srng_dst_get_next(hal_soc, hal_ring_hdl);
}
done:
dp_srng_access_end(int_ctx, soc, hal_ring_hdl);
if (soc->rx.flags.defrag_timeout_check) {
uint32_t now_ms =
qdf_system_ticks_to_msecs(qdf_system_ticks());
if (now_ms >= soc->rx.defrag.next_flush_ms)
dp_rx_defrag_waitlist_flush(soc);
}
for (mac_id = 0; mac_id < MAX_PDEV_CNT; mac_id++) {
if (rx_bufs_reaped[mac_id]) {
dp_pdev = dp_get_pdev_for_lmac_id(soc, mac_id);
dp_rxdma_srng = &soc->rx_refill_buf_ring[mac_id];
rx_desc_pool = &soc->rx_desc_buf[mac_id];
dp_rx_buffers_replenish(soc, mac_id, dp_rxdma_srng,
rx_desc_pool,
rx_bufs_reaped[mac_id],
&dp_pdev->free_list_head,
&dp_pdev->free_list_tail);
rx_bufs_used += rx_bufs_reaped[mac_id];
}
}
return rx_bufs_used; /* Assume no scale factor for now */
}
#ifdef DROP_RXDMA_DECRYPT_ERR
/**
* dp_handle_rxdma_decrypt_err() - Check if decrypt err frames can be handled
*
* Return: true if rxdma decrypt err frames are handled and false otheriwse
*/
static inline bool dp_handle_rxdma_decrypt_err(void)
{
return false;
}
#else
static inline bool dp_handle_rxdma_decrypt_err(void)
{
return true;
}
#endif
static inline bool
dp_rx_is_sg_formation_required(struct hal_wbm_err_desc_info *info)
{
/*
* Currently Null Queue and Unencrypted error handlers has support for
* SG. Other error handler do not deal with SG buffer.
*/
if (((info->wbm_err_src == HAL_RX_WBM_ERR_SRC_REO) &&
(info->reo_err_code == HAL_REO_ERR_QUEUE_DESC_ADDR_0)) ||
((info->wbm_err_src == HAL_RX_WBM_ERR_SRC_RXDMA) &&
(info->rxdma_err_code == HAL_RXDMA_ERR_UNENCRYPTED)))
return true;
return false;
}
uint32_t
dp_rx_wbm_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
hal_ring_handle_t hal_ring_hdl, uint32_t quota)
{
hal_ring_desc_t ring_desc;
hal_soc_handle_t hal_soc;
struct dp_rx_desc *rx_desc;
union dp_rx_desc_list_elem_t *head[MAX_PDEV_CNT] = { NULL };
union dp_rx_desc_list_elem_t *tail[MAX_PDEV_CNT] = { NULL };
uint32_t rx_bufs_used = 0;
uint32_t rx_bufs_reaped[MAX_PDEV_CNT] = { 0 };
uint8_t buf_type;
uint8_t mac_id;
struct dp_pdev *dp_pdev;
struct dp_srng *dp_rxdma_srng;
struct rx_desc_pool *rx_desc_pool;
uint8_t *rx_tlv_hdr;
qdf_nbuf_t nbuf_head = NULL;
qdf_nbuf_t nbuf_tail = NULL;
qdf_nbuf_t nbuf, next;
struct hal_wbm_err_desc_info wbm_err_info = { 0 };
uint8_t pool_id;
uint8_t tid = 0;
uint8_t msdu_continuation = 0;
bool process_sg_buf = false;
uint32_t wbm_err_src;
/* Debug -- Remove later */
qdf_assert(soc && hal_ring_hdl);
hal_soc = soc->hal_soc;
/* Debug -- Remove later */
qdf_assert(hal_soc);
if (qdf_unlikely(dp_srng_access_start(int_ctx, soc, hal_ring_hdl))) {
/* TODO */
/*
* Need API to convert from hal_ring pointer to
* Ring Type / Ring Id combo
*/
dp_rx_err_err("%pK: HAL RING Access Failed -- %pK",
soc, hal_ring_hdl);
goto done;
}
while (qdf_likely(quota)) {
ring_desc = hal_srng_dst_get_next(hal_soc, hal_ring_hdl);
if (qdf_unlikely(!ring_desc))
break;
/* XXX */
buf_type = HAL_RX_WBM_BUF_TYPE_GET(ring_desc);
/*
* For WBM ring, expect only MSDU buffers
*/
qdf_assert_always(buf_type == HAL_RX_WBM_BUF_TYPE_REL_BUF);
wbm_err_src = hal_rx_wbm_err_src_get(hal_soc, ring_desc);
qdf_assert((wbm_err_src == HAL_RX_WBM_ERR_SRC_RXDMA) ||
(wbm_err_src == HAL_RX_WBM_ERR_SRC_REO));
if (soc->arch_ops.dp_wbm_get_rx_desc_from_hal_desc(soc,
ring_desc,
&rx_desc)) {
dp_rx_err_err("get rx desc from hal_desc failed");
continue;
}
qdf_assert_always(rx_desc);
if (!dp_rx_desc_check_magic(rx_desc)) {
dp_rx_err_err("%pk: Invalid rx_desc %pk",
soc, rx_desc);
continue;
}
/*
* this is a unlikely scenario where the host is reaping
* a descriptor which it already reaped just a while ago
* but is yet to replenish it back to HW.
* In this case host will dump the last 128 descriptors
* including the software descriptor rx_desc and assert.
*/
if (qdf_unlikely(!rx_desc->in_use)) {
DP_STATS_INC(soc, rx.err.hal_wbm_rel_dup, 1);
dp_rx_dump_info_and_assert(soc, hal_ring_hdl,
ring_desc, rx_desc);
continue;
}
hal_rx_wbm_err_info_get(ring_desc, &wbm_err_info, hal_soc);
nbuf = rx_desc->nbuf;
rx_desc_pool = &soc->rx_desc_buf[rx_desc->pool_id];
dp_ipa_rx_buf_smmu_mapping_lock(soc);
dp_ipa_handle_rx_buf_smmu_mapping(soc, nbuf,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(soc->osdev, nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
if (qdf_unlikely(soc->wbm_release_desc_rx_sg_support &&
dp_rx_is_sg_formation_required(&wbm_err_info))) {
/* SG is detected from continuation bit */
msdu_continuation =
hal_rx_wbm_err_msdu_continuation_get(hal_soc,
ring_desc);
if (msdu_continuation &&
!(soc->wbm_sg_param.wbm_is_first_msdu_in_sg)) {
/* Update length from first buffer in SG */
soc->wbm_sg_param.wbm_sg_desc_msdu_len =
hal_rx_msdu_start_msdu_len_get(
soc->hal_soc,
qdf_nbuf_data(nbuf));
soc->wbm_sg_param.wbm_is_first_msdu_in_sg = true;
}
if (msdu_continuation) {
/* MSDU continued packets */
qdf_nbuf_set_rx_chfrag_cont(nbuf, 1);
QDF_NBUF_CB_RX_PKT_LEN(nbuf) =
soc->wbm_sg_param.wbm_sg_desc_msdu_len;
} else {
/* This is the terminal packet in SG */
qdf_nbuf_set_rx_chfrag_start(nbuf, 1);
qdf_nbuf_set_rx_chfrag_end(nbuf, 1);
QDF_NBUF_CB_RX_PKT_LEN(nbuf) =
soc->wbm_sg_param.wbm_sg_desc_msdu_len;
process_sg_buf = true;
}
}
/*
* save the wbm desc info in nbuf TLV. We will need this
* info when we do the actual nbuf processing
*/
wbm_err_info.pool_id = rx_desc->pool_id;
hal_rx_priv_info_set_in_tlv(soc->hal_soc,
qdf_nbuf_data(nbuf),
(uint8_t *)&wbm_err_info,
sizeof(wbm_err_info));
rx_bufs_reaped[rx_desc->pool_id]++;
if (qdf_nbuf_is_rx_chfrag_cont(nbuf) || process_sg_buf) {
DP_RX_LIST_APPEND(soc->wbm_sg_param.wbm_sg_nbuf_head,
soc->wbm_sg_param.wbm_sg_nbuf_tail,
nbuf);
if (process_sg_buf) {
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 if (!dp_rx_buffer_pool_refill(soc, nbuf,
rx_desc->pool_id)) {
DP_RX_LIST_APPEND(nbuf_head, nbuf_tail, nbuf);
}
dp_rx_add_to_free_desc_list(&head[rx_desc->pool_id],
&tail[rx_desc->pool_id],
rx_desc);
/*
* if continuation bit is set then we have MSDU spread
* across multiple buffers, let us not decrement quota
* till we reap all buffers of that MSDU.
*/
if (qdf_likely(!msdu_continuation))
quota -= 1;
}
done:
dp_srng_access_end(int_ctx, soc, hal_ring_hdl);
for (mac_id = 0; mac_id < MAX_PDEV_CNT; mac_id++) {
if (rx_bufs_reaped[mac_id]) {
dp_rxdma_srng = &soc->rx_refill_buf_ring[mac_id];
rx_desc_pool = &soc->rx_desc_buf[mac_id];
dp_rx_buffers_replenish(soc, mac_id, dp_rxdma_srng,
rx_desc_pool, rx_bufs_reaped[mac_id],
&head[mac_id], &tail[mac_id]);
rx_bufs_used += rx_bufs_reaped[mac_id];
}
}
nbuf = nbuf_head;
while (nbuf) {
struct dp_peer *peer;
uint16_t peer_id;
uint8_t err_code;
uint8_t *tlv_hdr;
uint32_t peer_meta_data;
rx_tlv_hdr = qdf_nbuf_data(nbuf);
/*
* retrieve the wbm desc info from nbuf TLV, so we can
* handle error cases appropriately
*/
hal_rx_priv_info_get_from_tlv(soc->hal_soc, rx_tlv_hdr,
(uint8_t *)&wbm_err_info,
sizeof(wbm_err_info));
peer_meta_data = hal_rx_mpdu_peer_meta_data_get(soc->hal_soc,
rx_tlv_hdr);
peer_id = dp_rx_peer_metadata_peer_id_get(soc, peer_meta_data);
peer = dp_peer_get_ref_by_id(soc, peer_id, DP_MOD_ID_RX_ERR);
if (!peer)
dp_info_rl("peer is null peer_id%u err_src%u err_rsn%u",
peer_id, wbm_err_info.wbm_err_src,
wbm_err_info.reo_psh_rsn);
/* Set queue_mapping in nbuf to 0 */
dp_set_rx_queue(nbuf, 0);
next = nbuf->next;
/*
* Form the SG for msdu continued buffers
* QCN9000 has this support
*/
if (qdf_nbuf_is_rx_chfrag_cont(nbuf)) {
nbuf = dp_rx_sg_create(soc, nbuf);
next = nbuf->next;
/*
* SG error handling is not done correctly,
* drop SG frames for now.
*/
qdf_nbuf_free(nbuf);
dp_info_rl("scattered msdu dropped");
nbuf = next;
if (peer)
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
continue;
}
if (wbm_err_info.wbm_err_src == HAL_RX_WBM_ERR_SRC_REO) {
if (wbm_err_info.reo_psh_rsn
== HAL_RX_WBM_REO_PSH_RSN_ERROR) {
DP_STATS_INC(soc,
rx.err.reo_error
[wbm_err_info.reo_err_code], 1);
/* increment @pdev level */
pool_id = wbm_err_info.pool_id;
dp_pdev = dp_get_pdev_for_lmac_id(soc, pool_id);
if (dp_pdev)
DP_STATS_INC(dp_pdev, err.reo_error,
1);
switch (wbm_err_info.reo_err_code) {
/*
* Handling for packets which have NULL REO
* queue descriptor
*/
case HAL_REO_ERR_QUEUE_DESC_ADDR_0:
pool_id = wbm_err_info.pool_id;
dp_rx_null_q_desc_handle(soc, nbuf,
rx_tlv_hdr,
pool_id, peer);
break;
/* TODO */
/* Add per error code accounting */
case HAL_REO_ERR_REGULAR_FRAME_2K_JUMP:
if (peer)
DP_STATS_INC(peer,
rx.err.jump_2k_err,
1);
pool_id = wbm_err_info.pool_id;
if (hal_rx_msdu_end_first_msdu_get(soc->hal_soc,
rx_tlv_hdr)) {
tid =
hal_rx_mpdu_start_tid_get(hal_soc, rx_tlv_hdr);
}
QDF_NBUF_CB_RX_PKT_LEN(nbuf) =
hal_rx_msdu_start_msdu_len_get(
soc->hal_soc, rx_tlv_hdr);
nbuf->next = NULL;
dp_2k_jump_handle(soc, nbuf,
rx_tlv_hdr,
peer_id, tid);
break;
case HAL_REO_ERR_REGULAR_FRAME_OOR:
if (peer)
DP_STATS_INC(peer,
rx.err.oor_err, 1);
if (hal_rx_msdu_end_first_msdu_get(soc->hal_soc,
rx_tlv_hdr)) {
tid =
hal_rx_mpdu_start_tid_get(hal_soc, rx_tlv_hdr);
}
QDF_NBUF_CB_RX_PKT_LEN(nbuf) =
hal_rx_msdu_start_msdu_len_get(
soc->hal_soc, rx_tlv_hdr);
nbuf->next = NULL;
dp_rx_oor_handle(soc, nbuf,
peer_id,
rx_tlv_hdr);
break;
case HAL_REO_ERR_BAR_FRAME_2K_JUMP:
case HAL_REO_ERR_BAR_FRAME_OOR:
if (peer)
dp_rx_err_handle_bar(soc,
peer,
nbuf);
qdf_nbuf_free(nbuf);
break;
case HAL_REO_ERR_PN_CHECK_FAILED:
case HAL_REO_ERR_PN_ERROR_HANDLING_FLAG_SET:
if (peer)
DP_STATS_INC(peer,
rx.err.pn_err, 1);
qdf_nbuf_free(nbuf);
break;
default:
dp_info_rl("Got pkt with REO ERROR: %d",
wbm_err_info.reo_err_code);
qdf_nbuf_free(nbuf);
}
} else if (wbm_err_info.reo_psh_rsn
== HAL_RX_WBM_REO_PSH_RSN_ROUTE) {
dp_rx_err_route_hdl(soc, nbuf, peer,
rx_tlv_hdr,
HAL_RX_WBM_ERR_SRC_REO);
} else {
/* should not enter here */
dp_rx_err_alert("invalid reo push reason %u",
wbm_err_info.reo_psh_rsn);
qdf_nbuf_free(nbuf);
qdf_assert_always(0);
}
} else if (wbm_err_info.wbm_err_src ==
HAL_RX_WBM_ERR_SRC_RXDMA) {
if (wbm_err_info.rxdma_psh_rsn
== HAL_RX_WBM_RXDMA_PSH_RSN_ERROR) {
DP_STATS_INC(soc,
rx.err.rxdma_error
[wbm_err_info.rxdma_err_code], 1);
/* increment @pdev level */
pool_id = wbm_err_info.pool_id;
dp_pdev = dp_get_pdev_for_lmac_id(soc, pool_id);
if (dp_pdev)
DP_STATS_INC(dp_pdev,
err.rxdma_error, 1);
switch (wbm_err_info.rxdma_err_code) {
case HAL_RXDMA_ERR_UNENCRYPTED:
case HAL_RXDMA_ERR_WIFI_PARSE:
if (peer)
DP_STATS_INC(peer,
rx.err.rxdma_wifi_parse_err,
1);
pool_id = wbm_err_info.pool_id;
dp_rx_process_rxdma_err(soc, nbuf,
rx_tlv_hdr,
peer,
wbm_err_info.
rxdma_err_code,
pool_id);
break;
case HAL_RXDMA_ERR_TKIP_MIC:
dp_rx_process_mic_error(soc, nbuf,
rx_tlv_hdr,
peer);
if (peer)
DP_STATS_INC(peer, rx.err.mic_err, 1);
break;
case HAL_RXDMA_ERR_DECRYPT:
if (peer) {
DP_STATS_INC(peer, rx.err.
decrypt_err, 1);
qdf_nbuf_free(nbuf);
break;
}
if (!dp_handle_rxdma_decrypt_err()) {
qdf_nbuf_free(nbuf);
break;
}
pool_id = wbm_err_info.pool_id;
err_code = wbm_err_info.rxdma_err_code;
tlv_hdr = rx_tlv_hdr;
dp_rx_process_rxdma_err(soc, nbuf,
tlv_hdr, NULL,
err_code,
pool_id);
break;
case HAL_RXDMA_MULTICAST_ECHO:
DP_STATS_INC_PKT(peer, rx.mec_drop, 1,
qdf_nbuf_len(nbuf));
qdf_nbuf_free(nbuf);
break;
case HAL_RXDMA_UNAUTHORIZED_WDS:
pool_id = wbm_err_info.pool_id;
err_code = wbm_err_info.rxdma_err_code;
tlv_hdr = rx_tlv_hdr;
dp_rx_process_rxdma_err(soc, nbuf,
tlv_hdr, NULL,
err_code,
pool_id);
break;
default:
qdf_nbuf_free(nbuf);
dp_err_rl("RXDMA error %d",
wbm_err_info.rxdma_err_code);
}
} else if (wbm_err_info.rxdma_psh_rsn
== HAL_RX_WBM_RXDMA_PSH_RSN_ROUTE) {
dp_rx_err_route_hdl(soc, nbuf, peer,
rx_tlv_hdr,
HAL_RX_WBM_ERR_SRC_RXDMA);
} else if (wbm_err_info.rxdma_psh_rsn
== HAL_RX_WBM_RXDMA_PSH_RSN_FLUSH) {
dp_rx_err_err("rxdma push reason %u",
wbm_err_info.rxdma_psh_rsn);
DP_STATS_INC(soc, rx.err.rx_flush_count, 1);
qdf_nbuf_free(nbuf);
} else {
/* should not enter here */
dp_rx_err_alert("invalid rxdma push reason %u",
wbm_err_info.rxdma_psh_rsn);
qdf_nbuf_free(nbuf);
qdf_assert_always(0);
}
} else {
/* Should not come here */
qdf_assert(0);
}
if (peer)
dp_peer_unref_delete(peer, DP_MOD_ID_RX_ERR);
nbuf = next;
}
return rx_bufs_used; /* Assume no scale factor for now */
}
#endif /* QCA_HOST_MODE_WIFI_DISABLED */
/**
* dup_desc_dbg() - dump and assert if duplicate rx desc found
*
* @soc: core DP main context
* @rxdma_dst_ring_desc: void pointer to monitor link descriptor buf addr info
* @rx_desc: void pointer to rx descriptor
*
* Return: void
*/
static void dup_desc_dbg(struct dp_soc *soc,
hal_rxdma_desc_t rxdma_dst_ring_desc,
void *rx_desc)
{
DP_STATS_INC(soc, rx.err.hal_rxdma_err_dup, 1);
dp_rx_dump_info_and_assert(
soc,
soc->rx_rel_ring.hal_srng,
hal_rxdma_desc_to_hal_ring_desc(rxdma_dst_ring_desc),
rx_desc);
}
/**
* dp_rx_err_mpdu_pop() - extract the MSDU's from link descs
*
* @soc: core DP main context
* @mac_id: mac id which is one of 3 mac_ids
* @rxdma_dst_ring_desc: void pointer to monitor link descriptor buf addr info
* @head: head of descs list to be freed
* @tail: tail of decs list to be freed
* Return: number of msdu in MPDU to be popped
*/
static inline uint32_t
dp_rx_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
hal_rxdma_desc_t rxdma_dst_ring_desc,
union dp_rx_desc_list_elem_t **head,
union dp_rx_desc_list_elem_t **tail)
{
void *rx_msdu_link_desc;
qdf_nbuf_t msdu;
qdf_nbuf_t last;
struct hal_rx_msdu_list msdu_list;
uint16_t num_msdus;
struct hal_buf_info buf_info;
uint32_t rx_bufs_used = 0;
uint32_t msdu_cnt;
uint32_t i;
uint8_t push_reason;
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_lmac_id(soc, mac_id);
uint32_t rx_link_buf_info[HAL_RX_BUFFINFO_NUM_DWORDS];
hal_rxdma_desc_t ring_desc;
struct rx_desc_pool *rx_desc_pool;
if (!pdev) {
dp_rx_err_debug("%pK: pdev is null for mac_id = %d",
soc, mac_id);
return rx_bufs_used;
}
msdu = 0;
last = NULL;
hal_rx_reo_ent_buf_paddr_get(soc->hal_soc, rxdma_dst_ring_desc,
&buf_info, &msdu_cnt);
push_reason =
hal_rx_reo_ent_rxdma_push_reason_get(rxdma_dst_ring_desc);
if (push_reason == HAL_RX_WBM_RXDMA_PSH_RSN_ERROR) {
rxdma_error_code =
hal_rx_reo_ent_rxdma_error_code_get(rxdma_dst_ring_desc);
}
do {
rx_msdu_link_desc =
dp_rx_cookie_2_link_desc_va(soc, &buf_info);
qdf_assert_always(rx_msdu_link_desc);
hal_rx_msdu_list_get(soc->hal_soc, rx_msdu_link_desc,
&msdu_list, &num_msdus);
if (msdu_list.sw_cookie[0] != HAL_RX_COOKIE_SPECIAL) {
/* if the msdus belongs to NSS offloaded radio &&
* the rbm is not SW1_BM then return the msdu_link
* descriptor without freeing the msdus (nbufs). let
* these buffers be given to NSS completion ring for
* NSS to free them.
* else iterate through the msdu link desc list and
* free each msdu in the list.
*/
if (msdu_list.rbm[0] !=
HAL_RX_BUF_RBM_SW3_BM(soc->wbm_sw0_bm_id) &&
wlan_cfg_get_dp_pdev_nss_enabled(
pdev->wlan_cfg_ctx))
bm_action = HAL_BM_ACTION_RELEASE_MSDU_LIST;
else {
for (i = 0; i < num_msdus; i++) {
struct dp_rx_desc *rx_desc =
soc->arch_ops.
dp_rx_desc_cookie_2_va(
soc,
msdu_list.sw_cookie[i]);
qdf_assert_always(rx_desc);
msdu = rx_desc->nbuf;
/*
* this is a unlikely scenario
* where the host is reaping
* a descriptor which
* it already reaped just a while ago
* but is yet to replenish
* it back to HW.
* In this case host will dump
* the last 128 descriptors
* including the software descriptor
* rx_desc and assert.
*/
ring_desc = rxdma_dst_ring_desc;
if (qdf_unlikely(!rx_desc->in_use)) {
dup_desc_dbg(soc,
ring_desc,
rx_desc);
continue;
}
rx_desc_pool = &soc->
rx_desc_buf[rx_desc->pool_id];
dp_ipa_rx_buf_smmu_mapping_lock(soc);
dp_ipa_handle_rx_buf_smmu_mapping(
soc, msdu,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(
soc->osdev, msdu,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
dp_rx_err_debug("%pK: msdu_nbuf=%pK ",
soc, 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);
}
}
} else {
rxdma_error_code = HAL_RXDMA_ERR_WAR;
}
/*
* Store the current link buffer into to the local structure
* to be used for release purpose.
*/
hal_rxdma_buff_addr_info_set(soc->hal_soc, rx_link_buf_info,
buf_info.paddr, buf_info.sw_cookie,
buf_info.rbm);
hal_rx_mon_next_link_desc_get(soc->hal_soc, 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);
if (pdev)
DP_STATS_INC(pdev, err.rxdma_error, 1);
if (rxdma_error_code == HAL_RXDMA_ERR_DECRYPT) {
dp_rx_err_err("%pK: Packet received with Decrypt error", soc);
}
return rx_bufs_used;
}
uint32_t
dp_rxdma_err_process(struct dp_intr *int_ctx, struct dp_soc *soc,
uint32_t mac_id, uint32_t quota)
{
struct dp_pdev *pdev = dp_get_pdev_for_lmac_id(soc, mac_id);
hal_rxdma_desc_t rxdma_dst_ring_desc;
hal_soc_handle_t hal_soc;
void *err_dst_srng;
union dp_rx_desc_list_elem_t *head = NULL;
union dp_rx_desc_list_elem_t *tail = NULL;
struct dp_srng *dp_rxdma_srng;
struct rx_desc_pool *rx_desc_pool;
uint32_t work_done = 0;
uint32_t rx_bufs_used = 0;
if (!pdev)
return 0;
err_dst_srng = soc->rxdma_err_dst_ring[mac_id].hal_srng;
if (!err_dst_srng) {
dp_rx_err_err("%pK: HAL Monitor Destination Ring Init Failed -- %pK",
soc, err_dst_srng);
return 0;
}
hal_soc = soc->hal_soc;
qdf_assert(hal_soc);
if (qdf_unlikely(dp_srng_access_start(int_ctx, soc, err_dst_srng))) {
dp_rx_err_err("%pK: HAL Monitor Destination Ring Init Failed -- %pK",
soc, err_dst_srng);
return 0;
}
while (qdf_likely(quota-- && (rxdma_dst_ring_desc =
hal_srng_dst_get_next(hal_soc, err_dst_srng)))) {
rx_bufs_used += dp_rx_err_mpdu_pop(soc, mac_id,
rxdma_dst_ring_desc,
&head, &tail);
}
dp_srng_access_end(int_ctx, soc, err_dst_srng);
if (rx_bufs_used) {
if (wlan_cfg_per_pdev_lmac_ring(soc->wlan_cfg_ctx)) {
dp_rxdma_srng = &soc->rx_refill_buf_ring[mac_id];
rx_desc_pool = &soc->rx_desc_buf[mac_id];
} else {
dp_rxdma_srng = &soc->rx_refill_buf_ring[pdev->lmac_id];
rx_desc_pool = &soc->rx_desc_buf[pdev->lmac_id];
}
dp_rx_buffers_replenish(soc, mac_id, dp_rxdma_srng,
rx_desc_pool, rx_bufs_used, &head, &tail);
work_done += rx_bufs_used;
}
return work_done;
}
#ifndef QCA_HOST_MODE_WIFI_DISABLED
static inline uint32_t
dp_wbm_int_err_mpdu_pop(struct dp_soc *soc, uint32_t mac_id,
hal_rxdma_desc_t rxdma_dst_ring_desc,
union dp_rx_desc_list_elem_t **head,
union dp_rx_desc_list_elem_t **tail)
{
void *rx_msdu_link_desc;
qdf_nbuf_t msdu;
qdf_nbuf_t last;
struct hal_rx_msdu_list msdu_list;
uint16_t num_msdus;
struct hal_buf_info buf_info;
uint32_t rx_bufs_used = 0, msdu_cnt, i;
uint32_t rx_link_buf_info[HAL_RX_BUFFINFO_NUM_DWORDS];
struct rx_desc_pool *rx_desc_pool;
msdu = 0;
last = NULL;
hal_rx_reo_ent_buf_paddr_get(soc->hal_soc, rxdma_dst_ring_desc,
&buf_info, &msdu_cnt);
do {
rx_msdu_link_desc =
dp_rx_cookie_2_link_desc_va(soc, &buf_info);
if (!rx_msdu_link_desc) {
DP_STATS_INC(soc, tx.wbm_internal_error[WBM_INT_ERROR_REO_NULL_LINK_DESC], 1);
break;
}
hal_rx_msdu_list_get(soc->hal_soc, rx_msdu_link_desc,
&msdu_list, &num_msdus);
if (msdu_list.sw_cookie[0] != HAL_RX_COOKIE_SPECIAL) {
for (i = 0; i < num_msdus; i++) {
struct dp_rx_desc *rx_desc =
soc->arch_ops.dp_rx_desc_cookie_2_va(
soc,
msdu_list.sw_cookie[i]);
qdf_assert_always(rx_desc);
rx_desc_pool =
&soc->rx_desc_buf[rx_desc->pool_id];
msdu = rx_desc->nbuf;
dp_ipa_rx_buf_smmu_mapping_lock(soc);
dp_ipa_handle_rx_buf_smmu_mapping(
soc, msdu,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(
soc->osdev,
msdu,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
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);
}
}
/*
* Store the current link buffer into to the local structure
* to be used for release purpose.
*/
hal_rxdma_buff_addr_info_set(soc->hal_soc, rx_link_buf_info,
buf_info.paddr, buf_info.sw_cookie,
buf_info.rbm);
hal_rx_mon_next_link_desc_get(soc->hal_soc, 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);
} while (buf_info.paddr);
return rx_bufs_used;
}
/*
*
* dp_handle_wbm_internal_error() - handles wbm_internal_error case
*
* @soc: core DP main context
* @hal_desc: hal descriptor
* @buf_type: indicates if the buffer is of type link disc or msdu
* Return: None
*
* wbm_internal_error is seen in following scenarios :
*
* 1. Null pointers detected in WBM_RELEASE_RING descriptors
* 2. Null pointers detected during delinking process
*
* Some null pointer cases:
*
* a. MSDU buffer pointer is NULL
* b. Next_MSDU_Link_Desc pointer is NULL, with no last msdu flag
* c. MSDU buffer pointer is NULL or Next_Link_Desc pointer is NULL
*/
void
dp_handle_wbm_internal_error(struct dp_soc *soc, void *hal_desc,
uint32_t buf_type)
{
struct hal_buf_info buf_info = {0};
struct dp_rx_desc *rx_desc = NULL;
struct rx_desc_pool *rx_desc_pool;
uint32_t rx_bufs_reaped = 0;
union dp_rx_desc_list_elem_t *head = NULL;
union dp_rx_desc_list_elem_t *tail = NULL;
uint8_t pool_id;
hal_rx_reo_buf_paddr_get(soc->hal_soc, hal_desc, &buf_info);
if (!buf_info.paddr) {
DP_STATS_INC(soc, tx.wbm_internal_error[WBM_INT_ERROR_REO_NULL_BUFFER], 1);
return;
}
/* buffer_addr_info is the first element of ring_desc */
hal_rx_buf_cookie_rbm_get(soc->hal_soc, (uint32_t *)hal_desc,
&buf_info);
pool_id = DP_RX_DESC_COOKIE_POOL_ID_GET(buf_info.sw_cookie);
if (buf_type == HAL_WBM_RELEASE_RING_2_BUFFER_TYPE) {
DP_STATS_INC(soc, tx.wbm_internal_error[WBM_INT_ERROR_REO_NULL_MSDU_BUFF], 1);
rx_desc = soc->arch_ops.dp_rx_desc_cookie_2_va(
soc,
buf_info.sw_cookie);
if (rx_desc && rx_desc->nbuf) {
rx_desc_pool = &soc->rx_desc_buf[rx_desc->pool_id];
dp_ipa_rx_buf_smmu_mapping_lock(soc);
dp_ipa_handle_rx_buf_smmu_mapping(
soc, rx_desc->nbuf,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(soc->osdev, rx_desc->nbuf,
QDF_DMA_FROM_DEVICE,
rx_desc_pool->buf_size);
rx_desc->unmapped = 1;
dp_ipa_rx_buf_smmu_mapping_unlock(soc);
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);
rx_bufs_reaped++;
}
} else if (buf_type == HAL_WBM_RELEASE_RING_2_DESC_TYPE) {
rx_bufs_reaped = dp_wbm_int_err_mpdu_pop(soc, pool_id,
hal_desc,
&head, &tail);
}
if (rx_bufs_reaped) {
struct rx_desc_pool *rx_desc_pool;
struct dp_srng *dp_rxdma_srng;
DP_STATS_INC(soc, tx.wbm_internal_error[WBM_INT_ERROR_REO_BUFF_REAPED], 1);
dp_rxdma_srng = &soc->rx_refill_buf_ring[pool_id];
rx_desc_pool = &soc->rx_desc_buf[pool_id];
dp_rx_buffers_replenish(soc, pool_id, dp_rxdma_srng,
rx_desc_pool,
rx_bufs_reaped,
&head, &tail);
}
}
#endif /* QCA_HOST_MODE_WIFI_DISABLED */
Reference in New Issue View Git Blame Copy Permalink