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coral / imx-board-wlan-src / 09c2a8a0ee983420f3c8d027723c04b39cd2d5e1 / . / CORE / CLD_TXRX / TXRX / ol_rx.c
blob: 150c109fa20425738f25a0acae560cd670ede63d [file] [log] [blame]
/*
* Copyright (c) 2011-2017 The Linux Foundation. All rights reserved.
*
* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
*
*
* 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.
*/
/*
* This file was originally distributed by Qualcomm Atheros, Inc.
* under proprietary terms before Copyright ownership was assigned
* to the Linux Foundation.
*/
#include <adf_nbuf.h> /* adf_nbuf_t, etc. */
#include <adf_os_io.h> /* adf_os_cpu_to_le64 */
#include <adf_os_types.h> /* a_bool_t */
#include <ieee80211_common.h> /* ieee80211_frame */
/* external API header files */
#include <ol_ctrl_txrx_api.h> /* ol_rx_notify */
#include <ol_htt_api.h> /* htt_pdev_handle */
#include <ol_txrx_api.h> /* ol_txrx_pdev_handle */
#include <ol_txrx_htt_api.h> /* ol_rx_indication_handler */
#include <ol_htt_rx_api.h> /* htt_rx_peer_id, etc. */
/* internal API header files */
#include <ol_txrx.h> /* ol_txrx_peer_unref_delete */
#include <ol_txrx_types.h> /* ol_txrx_vdev_t, etc. */
#include <ol_txrx_peer_find.h> /* ol_txrx_peer_find_by_id */
#include <ol_rx_reorder.h> /* ol_rx_reorder_store, etc. */
#include <ol_rx_reorder_timeout.h> /* OL_RX_REORDER_TIMEOUT_UPDATE */
#include <ol_rx_defrag.h> /* ol_rx_defrag_waitlist_flush */
#include <ol_rx_fwd.h> /* ol_rx_fwd_check, etc. */
#include <ol_txrx_internal.h>
#include <wdi_event.h>
#ifdef QCA_SUPPORT_SW_TXRX_ENCAP
#include <ol_txrx_encap.h> /* ol_rx_decap_info_t, etc*/
#endif
/* FIX THIS: txrx should not include private header files of other modules */
#include <htt_types.h>
#include <ol_if_athvar.h>
#include <enet.h> /* ethernet + SNAP/LLC header defs and ethertype values */
#include <ip_prot.h> /* IP protocol values */
#include <ipv4.h> /* IPv4 header defs */
#include <ipv6_defs.h> /* IPv6 header defs */
#include <ol_vowext_dbg_defs.h>
#include <wma.h>
#include "pktlog_ac_fmt.h"
#include "adf_trace.h"
#ifdef HTT_RX_RESTORE
#include "vos_cnss.h"
#endif
#ifdef OSIF_NEED_RX_PEER_ID
#define OL_RX_OSIF_DELIVER(vdev, peer, msdus) \
vdev->osif_rx(vdev->osif_dev, peer->local_id, msdus)
#else
#define OL_RX_OSIF_DELIVER(vdev, peer, msdus) \
vdev->osif_rx(vdev->osif_dev, msdus)
#endif /* OSIF_NEED_RX_PEER_ID */
#ifdef HTT_RX_RESTORE
static void ol_rx_restore_handler(struct work_struct *htt_rx)
{
adf_os_device_t adf_ctx;
VosContextType *pvoscontext = NULL;
VOS_TRACE(VOS_MODULE_ID_TXRX, VOS_TRACE_LEVEL_INFO,
"Enter: %s", __func__);
pvoscontext = vos_get_global_context(VOS_MODULE_ID_SYS, NULL);
adf_ctx = vos_get_context(VOS_MODULE_ID_ADF, pvoscontext);
if (adf_ctx)
vos_device_self_recovery(adf_ctx->dev);
VOS_TRACE(VOS_MODULE_ID_TXRX, VOS_TRACE_LEVEL_INFO,
"Exit: %s", __func__);
}
static DECLARE_WORK(ol_rx_restore_work, ol_rx_restore_handler);
void ol_rx_trigger_restore(htt_pdev_handle htt_pdev, adf_nbuf_t head_msdu,
adf_nbuf_t tail_msdu)
{
adf_nbuf_t next;
while (head_msdu) {
next = adf_nbuf_next(head_msdu);
VOS_TRACE(VOS_MODULE_ID_TXRX, VOS_TRACE_LEVEL_INFO,
"freeing %pK\n", head_msdu);
adf_nbuf_free(head_msdu);
head_msdu = next;
}
if ( !htt_pdev->rx_ring.htt_rx_restore){
vos_set_logp_in_progress(VOS_MODULE_ID_VOSS, TRUE);
htt_pdev->rx_ring.htt_rx_restore = 1;
schedule_work(&ol_rx_restore_work);
}
}
#endif
void ol_rx_reset_pn_replay_counters(struct ol_txrx_pdev_t *pdev)
{
adf_os_mem_zero(pdev->pn_replays,
OL_RX_NUM_PN_REPLAY_TYPES * sizeof(uint32_t));
}
uint32_t ol_rx_get_tkip_replay_counter(struct ol_txrx_pdev_t *pdev)
{
return pdev->pn_replays[OL_RX_TKIP_REPLAYS];
}
uint32_t ol_rx_get_ccmp_replay_counter(struct ol_txrx_pdev_t *pdev)
{
return pdev->pn_replays[OL_RX_CCMP_REPLAYS];
}
static void ol_rx_process_inv_peer(
ol_txrx_pdev_handle pdev,
void *rx_mpdu_desc,
adf_nbuf_t msdu
)
{
a_uint8_t a1[IEEE80211_ADDR_LEN];
htt_pdev_handle htt_pdev = pdev->htt_pdev;
struct ol_txrx_vdev_t *vdev = NULL;
struct ieee80211_frame *wh;
struct wdi_event_rx_peer_invalid_msg msg;
wh = (struct ieee80211_frame *)
htt_rx_mpdu_wifi_hdr_retrieve(htt_pdev, rx_mpdu_desc);
/*
* Klocwork issue #6152
* All targets that send a "INVALID_PEER" rx status provide a
* 802.11 header for each rx MPDU, so it is certain that
* htt_rx_mpdu_wifi_hdr_retrieve will succeed.
* However, both for robustness, e.g. if this function is given a
* MSDU descriptor rather than a MPDU descriptor, and to make it
* clear to static analysis that this code is safe, add an explicit
* check that htt_rx_mpdu_wifi_hdr_retrieve provides a non-NULL value.
*/
if (wh == NULL || !IEEE80211_IS_DATA(wh)) {
return;
}
/* ignore frames for non-existent bssids */
adf_os_mem_copy(a1, wh->i_addr1, IEEE80211_ADDR_LEN);
TAILQ_FOREACH(vdev, &pdev->vdev_list, vdev_list_elem) {
if (adf_os_mem_cmp(a1, vdev->mac_addr.raw, IEEE80211_ADDR_LEN) == 0) {
break;
}
}
if (!vdev) {
return;
}
msg.wh = wh;
msg.msdu = msdu;
msg.vdev_id = vdev->vdev_id;
#ifdef WDI_EVENT_ENABLE
wdi_event_handler(WDI_EVENT_RX_PEER_INVALID, pdev, &msg);
#endif
}
#ifdef QCA_SUPPORT_PEER_DATA_RX_RSSI
static inline int16_t
ol_rx_rssi_avg(struct ol_txrx_pdev_t *pdev, int16_t rssi_old, int16_t rssi_new)
{
int rssi_old_weight;
if (rssi_new == HTT_RSSI_INVALID) {
return rssi_old;
}
if (rssi_old == HTT_RSSI_INVALID) {
return rssi_new;
}
rssi_old_weight = (1 << pdev->rssi_update_shift) - pdev->rssi_new_weight;
return (rssi_new * pdev->rssi_new_weight + rssi_old * rssi_old_weight) >>
pdev->rssi_update_shift;
}
static void
OL_RX_IND_RSSI_UPDATE(
struct ol_txrx_peer_t *peer,
adf_nbuf_t rx_ind_msg)
{
struct ol_txrx_pdev_t *pdev = peer->vdev->pdev;
peer->rssi_dbm = ol_rx_rssi_avg(
pdev, peer->rssi_dbm,
htt_rx_ind_rssi_dbm(pdev->htt_pdev, rx_ind_msg));
}
static void
OL_RX_MPDU_RSSI_UPDATE(
struct ol_txrx_peer_t *peer,
void *rx_mpdu_desc)
{
struct ol_txrx_pdev_t *pdev = peer->vdev->pdev;
if (! peer) {
return;
}
peer->rssi_dbm = ol_rx_rssi_avg(
pdev, peer->rssi_dbm,
htt_rx_mpdu_desc_rssi_dbm(pdev->htt_pdev, rx_mpdu_desc));
}
#else
#define OL_RX_IND_RSSI_UPDATE(peer, rx_ind_msg) /* no-op */
#define OL_RX_MPDU_RSSI_UPDATE(peer, rx_mpdu_desc) /* no-op */
#endif /* QCA_SUPPORT_PEER_DATA_RX_RSSI */
/**
* ol_rx_mon_indication_handler() - htt rx indication message handler
* for HL monitor mode.
* @pdev: pointer to struct ol_txrx_pdev_handle
* @rx_ind_msg: htt rx indication message
* @peer_id: peer id
* @tid: tid
* @num_mpdu_ranges: number of mpdu ranges
*
* This function pops amsdu from rx indication message and directly
* deliver to upper layer.
*/
void
ol_rx_mon_indication_handler(
ol_txrx_pdev_handle pdev,
adf_nbuf_t rx_ind_msg,
u_int16_t peer_id,
u_int8_t tid,
int num_mpdu_ranges)
{
int mpdu_range;
struct ol_txrx_peer_t *peer;
htt_pdev_handle htt_pdev;
struct ol_txrx_vdev_t *vdev = NULL;
htt_pdev = pdev->htt_pdev;
adf_os_spin_lock_bh(&pdev->peer_ref_mutex);
peer = pdev->self_peer;
if (peer) {
adf_os_atomic_inc(&peer->ref_cnt);
vdev = peer->vdev;
}
adf_os_spin_unlock_bh(&pdev->peer_ref_mutex);
for (mpdu_range = 0; mpdu_range < num_mpdu_ranges; mpdu_range++) {
enum htt_rx_status status;
int i, num_mpdus;
adf_nbuf_t head_msdu, tail_msdu;
htt_rx_ind_mpdu_range_info(
pdev->htt_pdev,
rx_ind_msg,
mpdu_range,
&status,
&num_mpdus);
TXRX_STATS_ADD(pdev, priv.rx.normal.mpdus, num_mpdus);
for (i = 0; i < num_mpdus; i++) {
htt_rx_amsdu_pop(
htt_pdev, rx_ind_msg, &head_msdu, &tail_msdu);
if (peer && vdev) {
peer->rx_opt_proc(vdev, peer, tid, head_msdu);
} else {
while (1) {
adf_nbuf_t next;
next = adf_nbuf_next(head_msdu);
htt_rx_desc_frame_free(
htt_pdev,
head_msdu);
if (head_msdu == tail_msdu)
break;
head_msdu = next;
}
}
}
}
if (peer)
ol_txrx_peer_unref_delete(peer);
}
void
ol_rx_indication_handler(
ol_txrx_pdev_handle pdev,
adf_nbuf_t rx_ind_msg,
u_int16_t peer_id,
u_int8_t tid,
int num_mpdu_ranges)
{
int mpdu_range, i;
unsigned seq_num_start = 0, seq_num_end = 0;
a_bool_t rx_ind_release = A_FALSE;
struct ol_txrx_vdev_t *vdev = NULL;
struct ol_txrx_peer_t *peer;
htt_pdev_handle htt_pdev;
uint16_t center_freq;
uint16_t chan1;
uint16_t chan2;
uint8_t phymode;
a_bool_t ret;
htt_pdev = pdev->htt_pdev;
peer = ol_txrx_peer_find_by_id(pdev, peer_id);
if (!peer) {
/* If we can't find a peer send this packet to OCB interface using
OCB self peer */
if (!ol_txrx_get_ocb_peer(pdev, &peer))
peer = NULL;
}
if (peer) {
vdev = peer->vdev;
OL_RX_IND_RSSI_UPDATE(peer, rx_ind_msg);
if (vdev->opmode == wlan_op_mode_ocb) {
htt_rx_ind_legacy_rate(pdev->htt_pdev, rx_ind_msg,
&peer->last_pkt_legacy_rate,
&peer->last_pkt_legacy_rate_sel);
peer->last_pkt_rssi_cmb = htt_rx_ind_rssi_dbm(pdev->htt_pdev,
rx_ind_msg);
for (i = 0; i < 4; i++)
peer->last_pkt_rssi[i] = htt_rx_ind_rssi_dbm_chain(
pdev->htt_pdev, rx_ind_msg, i);
for (i = 0; i < 4; i++)
peer->last_pkt_noise_floor[i] = htt_rx_ind_noise_floor_chain(
pdev->htt_pdev, rx_ind_msg, i);
htt_rx_ind_timestamp(pdev->htt_pdev, rx_ind_msg,
&peer->last_pkt_timestamp_microsec,
&peer->last_pkt_timestamp_submicrosec);
peer->last_pkt_tsf = htt_rx_ind_tsf32(pdev->htt_pdev, rx_ind_msg);
peer->last_pkt_tid = htt_rx_ind_ext_tid(pdev->htt_pdev, rx_ind_msg);
}
}
TXRX_STATS_INCR(pdev, priv.rx.normal.ppdus);
OL_RX_REORDER_TIMEOUT_MUTEX_LOCK(pdev);
if (htt_rx_ind_flush(pdev->htt_pdev, rx_ind_msg) && peer) {
htt_rx_ind_flush_seq_num_range(
pdev->htt_pdev, rx_ind_msg, &seq_num_start, &seq_num_end);
if (tid == HTT_INVALID_TID) {
/*
* host/FW reorder state went out-of sync
* for a while because FW ran out of Rx indication
* buffer. We have to discard all the buffers in
* reorder queue.
*/
ol_rx_reorder_peer_cleanup(vdev, peer);
} else {
ol_rx_reorder_flush(
vdev, peer, tid, seq_num_start,
seq_num_end, htt_rx_flush_release);
ol_rx_reorder_update_history(peer, reorder_flush, tid,
seq_num_start, seq_num_end, 0);
}
}
if (htt_rx_ind_release(pdev->htt_pdev, rx_ind_msg)) {
/* the ind info of release is saved here and do release at the end.
* This is for the reason of in HL case, the adf_nbuf_t for msg and
* payload are the same buf. And the buf will be changed during
* processing */
rx_ind_release = A_TRUE;
htt_rx_ind_release_seq_num_range(
pdev->htt_pdev, rx_ind_msg, &seq_num_start, &seq_num_end);
}
#ifdef DEBUG_DMA_DONE
pdev->htt_pdev->rx_ring.dbg_initial_msdu_payld =
pdev->htt_pdev->rx_ring.sw_rd_idx.msdu_payld;
#endif
for (mpdu_range = 0; mpdu_range < num_mpdu_ranges; mpdu_range++) {
enum htt_rx_status status;
int i, num_mpdus;
adf_nbuf_t head_msdu, tail_msdu, msdu;
void *rx_mpdu_desc;
#ifdef DEBUG_DMA_DONE
pdev->htt_pdev->rx_ring.dbg_mpdu_range = mpdu_range;
#endif
htt_rx_ind_mpdu_range_info(
pdev->htt_pdev, rx_ind_msg, mpdu_range, &status, &num_mpdus);
if ((status == htt_rx_status_ok) && peer) {
TXRX_STATS_ADD(pdev, priv.rx.normal.mpdus, num_mpdus);
/* valid frame - deposit it into the rx reordering buffer */
for (i = 0; i < num_mpdus; i++) {
int msdu_chaining;
/*
* Get a linked list of the MSDUs that comprise this MPDU.
* This also attaches each rx MSDU descriptor to the
* corresponding rx MSDU network buffer.
* (In some systems, the rx MSDU desc is already in the
* same buffer as the MSDU payload; in other systems they
* are separate, so a pointer needs to be set in the netbuf
* to locate the corresponding rx descriptor.)
*
* It is neccessary to call htt_rx_amsdu_pop before
* htt_rx_mpdu_desc_list_next, because the (MPDU) rx
* descriptor has the DMA unmapping done during the
* htt_rx_amsdu_pop call. The rx desc should not be
* accessed until this DMA unmapping has been done,
* since the DMA unmapping involves making sure the
* cache area for the mapped buffer is flushed, so the
* data written by the MAC DMA into memory will be
* fetched, rather than garbage from the cache.
*/
#ifdef DEBUG_DMA_DONE
pdev->htt_pdev->rx_ring.dbg_mpdu_count = i;
#endif
msdu_chaining = htt_rx_amsdu_pop(
htt_pdev, rx_ind_msg, &head_msdu, &tail_msdu);
#ifdef HTT_RX_RESTORE
if (htt_pdev->rx_ring.rx_reset) {
ol_rx_trigger_restore(htt_pdev, head_msdu, tail_msdu);
return;
}
#endif
rx_mpdu_desc =
htt_rx_mpdu_desc_list_next(htt_pdev, rx_ind_msg);
ret = htt_rx_msdu_center_freq(htt_pdev, peer, rx_mpdu_desc,
&center_freq, &chan1, &chan2, &phymode);
if (ret == A_TRUE) {
peer->last_pkt_center_freq = center_freq;
} else {
peer->last_pkt_center_freq = 0;
}
/* Pktlog */
#ifdef WDI_EVENT_ENABLE
wdi_event_handler(WDI_EVENT_RX_DESC_REMOTE, pdev, head_msdu);
#endif
if (msdu_chaining) {
/*
* TBDXXX - to deliver SDU with chaining, we need to
* stitch those scattered buffers into one single buffer.
* Just discard it now.
*/
while (1) {
adf_nbuf_t next;
next = adf_nbuf_next(head_msdu);
htt_rx_desc_frame_free(htt_pdev, head_msdu);
if (head_msdu == tail_msdu) {
break;
}
head_msdu = next;
}
} else {
enum htt_rx_status mpdu_status;
int reorder_idx;
reorder_idx =
htt_rx_mpdu_desc_reorder_idx(htt_pdev, rx_mpdu_desc);
OL_RX_REORDER_TRACE_ADD(
pdev, tid, reorder_idx,
htt_rx_mpdu_desc_seq_num(htt_pdev, rx_mpdu_desc), 1);
OL_RX_MPDU_RSSI_UPDATE(peer, rx_mpdu_desc);
/*
* In most cases, out-of-bounds and duplicate sequence
* number detection is performed by the target, but in
* some cases it is done by the host.
* Specifically, the host does rx out-of-bounds sequence
* number detection for:
* 1. Peregrine or Rome target for peer-TIDs that do
* not have aggregation enabled, if the
* RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK flag
* is set during the driver build.
* 2. Riva-family targets, which have rx reorder timeouts
* handled by the host rather than the target.
* (The target already does duplicate detection, but
* the host may have given up waiting for a particular
* sequence number before it arrives. In this case,
* the out-of-bounds sequence number of the late frame
* allows the host to discard it, rather than sending
* it out of order.
*/
mpdu_status = OL_RX_SEQ_NUM_CHECK(
pdev, peer, tid, rx_mpdu_desc);
if (mpdu_status != htt_rx_status_ok) {
/*
* If the sequence number was out of bounds,
* the MPDU needs to be discarded.
*/
while (1) {
adf_nbuf_t next;
next = adf_nbuf_next(head_msdu);
htt_rx_desc_frame_free(htt_pdev, head_msdu);
if (head_msdu == tail_msdu) {
break;
}
head_msdu = next;
}
/*
* For Peregrine and Rome,
* OL_RX_REORDER_SEQ_NUM_CHECK should only fail for
* the case of (duplicate) non-aggregates.
*
* For Riva, Pronto, and Northstar,
* there should be only one MPDU delivered at a time.
* Thus, there are no further MPDUs that need to be
* processed here.
* Just to be sure this is true, check the assumption
* that this was the only MPDU referenced by the rx
* indication.
*/
TXRX_ASSERT2(num_mpdu_ranges == 1 && num_mpdus == 1);
/*
* The MPDU was not stored in the rx reorder array,
* so there's nothing to release.
*/
rx_ind_release = A_FALSE;
} else {
ol_rx_reorder_store(
pdev, peer, tid, reorder_idx, head_msdu, tail_msdu);
ol_rx_reorder_update_history(peer, reorder_store, tid,
0, 0, reorder_idx);
if (peer->tids_rx_reorder[tid].win_sz_mask == 0) {
peer->tids_last_seq[tid] =
htt_rx_mpdu_desc_seq_num(htt_pdev,
rx_mpdu_desc);
}
}
}
}
} else {
/* invalid frames - discard them */
OL_RX_REORDER_TRACE_ADD(
pdev, tid, TXRX_SEQ_NUM_ERR(status),
TXRX_SEQ_NUM_ERR(status), num_mpdus);
TXRX_STATS_ADD(pdev, priv.rx.err.mpdu_bad, num_mpdus);
for (i = 0; i < num_mpdus; i++) {
/* pull the MPDU's MSDUs off the buffer queue */
htt_rx_amsdu_pop(htt_pdev, rx_ind_msg, &msdu, &tail_msdu);
#ifdef HTT_RX_RESTORE
if (htt_pdev->rx_ring.rx_reset) {
ol_rx_trigger_restore(htt_pdev, msdu, tail_msdu);
return;
}
#endif
/* pull the MPDU desc off the desc queue */
rx_mpdu_desc =
htt_rx_mpdu_desc_list_next(htt_pdev, rx_ind_msg);
OL_RX_ERR_STATISTICS_2(
pdev, vdev, peer, rx_mpdu_desc, msdu, status);
if (status == htt_rx_status_tkip_mic_err &&
vdev != NULL && peer != NULL)
{
union htt_rx_pn_t pn;
u_int8_t key_id;
htt_rx_mpdu_desc_pn(pdev->htt_pdev,
htt_rx_msdu_desc_retrieve(pdev->htt_pdev,
msdu), &pn, 48);
if (htt_rx_msdu_desc_key_id(pdev->htt_pdev,
htt_rx_msdu_desc_retrieve(pdev->htt_pdev,
msdu), &key_id) == A_TRUE) {
ol_rx_err(pdev->ctrl_pdev, vdev->vdev_id,
peer->mac_addr.raw, tid, 0,
OL_RX_ERR_TKIP_MIC, msdu, &pn.pn48, key_id);
}
}
#ifdef WDI_EVENT_ENABLE
if (status != htt_rx_status_ctrl_mgmt_null) {
/* Pktlog */
wdi_event_handler(WDI_EVENT_RX_DESC_REMOTE, pdev, msdu);
}
#endif
if (status == htt_rx_status_err_inv_peer) {
/* once per mpdu */
ol_rx_process_inv_peer(pdev, rx_mpdu_desc, msdu);
}
while (1) {
/* Free the nbuf */
adf_nbuf_t next;
next = adf_nbuf_next(msdu);
htt_rx_desc_frame_free(htt_pdev, msdu);
if (msdu == tail_msdu) {
break;
}
msdu = next;
}
}
}
}
/*
* Now that a whole batch of MSDUs have been pulled out of HTT
* and put into the rx reorder array, it is an appropriate time
* to request HTT to provide new rx MSDU buffers for the target
* to fill.
* This could be done after the end of this function, but it's
* better to do it now, rather than waiting until after the driver
* and OS finish processing the batch of rx MSDUs.
*/
htt_rx_msdu_buff_replenish(htt_pdev);
if ((A_TRUE == rx_ind_release) && peer && vdev) {
ol_rx_reorder_release(vdev, peer, tid, seq_num_start, seq_num_end);
ol_rx_reorder_update_history(peer, reorder_release, tid, seq_num_start,
seq_num_end, 0);
}
OL_RX_REORDER_TIMEOUT_UPDATE(peer, tid);
OL_RX_REORDER_TIMEOUT_MUTEX_UNLOCK(pdev);
if (pdev->rx.flags.defrag_timeout_check) {
ol_rx_defrag_waitlist_flush(pdev);
}
}
void
ol_rx_sec_ind_handler(
ol_txrx_pdev_handle pdev,
u_int16_t peer_id,
enum htt_sec_type sec_type,
int is_unicast,
u_int32_t *michael_key,
u_int32_t *rx_pn)
{
struct ol_txrx_peer_t *peer;
int sec_index, i;
peer = ol_txrx_peer_find_by_id(pdev, peer_id);
if (! peer) {
TXRX_PRINT(TXRX_PRINT_LEVEL_ERR,
"Couldn't find peer from ID %d - skipping security inits\n",
peer_id);
return;
}
TXRX_PRINT(TXRX_PRINT_LEVEL_INFO1,
"sec spec for peer %pK (%02x:%02x:%02x:%02x:%02x:%02x): "
"%s key of type %d\n",
peer,
peer->mac_addr.raw[0], peer->mac_addr.raw[1], peer->mac_addr.raw[2],
peer->mac_addr.raw[3], peer->mac_addr.raw[4], peer->mac_addr.raw[5],
is_unicast ? "ucast" : "mcast",
sec_type);
sec_index = is_unicast ? txrx_sec_ucast : txrx_sec_mcast;
peer->security[sec_index].sec_type = sec_type;
/* michael key only valid for TKIP, but for simplicity, copy it anyway */
adf_os_mem_copy(
&peer->security[sec_index].michael_key[0],
michael_key,
sizeof(peer->security[sec_index].michael_key));
if (sec_type != htt_sec_type_wapi) {
adf_os_mem_set(peer->tids_last_pn_valid, 0x00, OL_TXRX_NUM_EXT_TIDS);
} else if (sec_index == txrx_sec_mcast || peer->tids_last_pn_valid[0]) {
for (i = 0; i < OL_TXRX_NUM_EXT_TIDS; i++) {
/*
* Setting PN valid bit for WAPI sec_type,
* since WAPI PN has to be started with predefined value
*/
peer->tids_last_pn_valid[i] = 1;
adf_os_mem_copy(
(u_int8_t *) &peer->tids_last_pn[i],
(u_int8_t *) rx_pn, sizeof(union htt_rx_pn_t));
peer->tids_last_pn[i].pn128[1] =
adf_os_cpu_to_le64(peer->tids_last_pn[i].pn128[1]);
peer->tids_last_pn[i].pn128[0] =
adf_os_cpu_to_le64(peer->tids_last_pn[i].pn128[0]);
}
}
}
#if defined(PERE_IP_HDR_ALIGNMENT_WAR)
#include <ieee80211_common.h>
static void
transcap_nwifi_to_8023(adf_nbuf_t msdu)
{
struct ieee80211_frame *wh;
a_uint32_t hdrsize;
struct llc *llchdr;
struct ether_header *eth_hdr;
a_uint16_t ether_type = 0;
a_uint8_t a1[IEEE80211_ADDR_LEN];
a_uint8_t a2[IEEE80211_ADDR_LEN];
a_uint8_t a3[IEEE80211_ADDR_LEN];
a_uint8_t fc1;
wh = (struct ieee80211_frame *)adf_nbuf_data(msdu);
adf_os_mem_copy(a1, wh->i_addr1, IEEE80211_ADDR_LEN);
adf_os_mem_copy(a2, wh->i_addr2, IEEE80211_ADDR_LEN);
adf_os_mem_copy(a3, wh->i_addr3, IEEE80211_ADDR_LEN);
fc1 = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
/* Native Wifi header is 80211 non-QoS header */
hdrsize = sizeof(struct ieee80211_frame);
llchdr = (struct llc *)(((a_uint8_t *)adf_nbuf_data(msdu)) + hdrsize);
ether_type = llchdr->llc_un.type_snap.ether_type;
/*
* Now move the data pointer to the beginning of the mac header :
* new-header = old-hdr + (wifhdrsize + llchdrsize - ethhdrsize)
*/
adf_nbuf_pull_head(
msdu, (hdrsize + sizeof(struct llc) - sizeof(struct ether_header)));
eth_hdr = (struct ether_header *)(adf_nbuf_data(msdu));
switch (fc1) {
case IEEE80211_FC1_DIR_NODS:
adf_os_mem_copy(eth_hdr->ether_dhost, a1, IEEE80211_ADDR_LEN);
adf_os_mem_copy(eth_hdr->ether_shost, a2, IEEE80211_ADDR_LEN);
break;
case IEEE80211_FC1_DIR_TODS:
adf_os_mem_copy(eth_hdr->ether_dhost, a3, IEEE80211_ADDR_LEN);
adf_os_mem_copy(eth_hdr->ether_shost, a2, IEEE80211_ADDR_LEN);
break;
case IEEE80211_FC1_DIR_FROMDS:
adf_os_mem_copy(eth_hdr->ether_dhost, a1, IEEE80211_ADDR_LEN);
adf_os_mem_copy(eth_hdr->ether_shost, a3, IEEE80211_ADDR_LEN);
break;
case IEEE80211_FC1_DIR_DSTODS:
break;
}
eth_hdr->ether_type = ether_type;
}
#endif
void ol_rx_notify(ol_pdev_handle pdev,
u_int8_t vdev_id,
u_int8_t *peer_mac_addr,
int tid,
u_int32_t tsf32,
enum ol_rx_notify_type notify_type,
adf_nbuf_t rx_frame)
{
/*
* NOTE: This is used in qca_main for AP mode to handle IGMP
* packets specially. Umac has a corresponding handler for this
* not sure if we need to have this for CLD as well.
*/
}
/**
* @brief Look into a rx MSDU to see what kind of special handling it requires
* @details
* This function is called when the host rx SW sees that the target
* rx FW has marked a rx MSDU as needing inspection.
* Based on the results of the inspection, the host rx SW will infer
* what special handling to perform on the rx frame.
* Currently, the only type of frames that require special handling
* are IGMP frames. The rx data-path SW checks if the frame is IGMP
* (it should be, since the target would not have set the inspect flag
* otherwise), and then calls the ol_rx_notify function so the
* control-path SW can perform multicast group membership learning
* by sniffing the IGMP frame.
*/
#define SIZEOF_80211_HDR (sizeof(struct ieee80211_frame))
void
ol_rx_inspect(
struct ol_txrx_vdev_t *vdev,
struct ol_txrx_peer_t *peer,
unsigned tid,
adf_nbuf_t msdu,
void *rx_desc)
{
ol_txrx_pdev_handle pdev = vdev->pdev;
u_int8_t *data, *l3_hdr;
u_int16_t ethertype;
int offset;
data = adf_nbuf_data(msdu);
if (pdev->frame_format == wlan_frm_fmt_native_wifi) {
offset = SIZEOF_80211_HDR + LLC_SNAP_HDR_OFFSET_ETHERTYPE;
l3_hdr = data + SIZEOF_80211_HDR + LLC_SNAP_HDR_LEN;
} else {
offset = ETHERNET_ADDR_LEN * 2;
l3_hdr = data + ETHERNET_HDR_LEN;
}
ethertype = (data[offset] << 8) | data[offset+1];
if (ethertype == ETHERTYPE_IPV4) {
offset = IPV4_HDR_OFFSET_PROTOCOL;
if (l3_hdr[offset] == IP_PROTOCOL_IGMP) {
ol_rx_notify(
pdev->ctrl_pdev,
vdev->vdev_id,
peer->mac_addr.raw,
tid,
htt_rx_mpdu_desc_tsf32(pdev->htt_pdev, rx_desc),
OL_RX_NOTIFY_IPV4_IGMP,
msdu);
}
}
}
void
ol_rx_offload_deliver_ind_handler(
ol_txrx_pdev_handle pdev,
adf_nbuf_t msg,
u_int16_t msdu_cnt)
{
int vdev_id, peer_id, tid;
adf_nbuf_t head_buf, tail_buf, buf;
struct ol_txrx_peer_t *peer;
struct ol_txrx_vdev_t *vdev = NULL;
u_int8_t fw_desc;
htt_pdev_handle htt_pdev = pdev->htt_pdev;
if (msdu_cnt > htt_rx_offload_msdu_cnt(htt_pdev)) {
TXRX_PRINT(TXRX_PRINT_LEVEL_ERR,
"%s: invalid msdu_cnt=%u\n",
__func__,
msdu_cnt);
if (pdev->cfg.is_high_latency)
htt_rx_desc_frame_free(htt_pdev, msg);
return;
}
while (msdu_cnt) {
if (!htt_rx_offload_msdu_pop(
htt_pdev, msg, &vdev_id, &peer_id,
&tid, &fw_desc, &head_buf, &tail_buf)) {
peer = ol_txrx_peer_find_by_id(pdev, peer_id);
if (peer && peer->vdev) {
vdev = peer->vdev;
if (pdev->cfg.is_high_latency)
ol_rx_fwd_check(vdev, peer, tid, head_buf);
else
OL_RX_OSIF_DELIVER(vdev, peer, head_buf);
} else {
buf = head_buf;
while (1) {
adf_nbuf_t next;
next = adf_nbuf_next(buf);
htt_rx_desc_frame_free(htt_pdev, buf);
if (buf == tail_buf) {
break;
}
buf = next;
}
}
}
msdu_cnt--;
}
htt_rx_msdu_buff_replenish(htt_pdev);
}
/**
* @brief Check the first msdu to decide whether the a-msdu should be accepted.
*/
a_bool_t
ol_rx_filter(
struct ol_txrx_vdev_t *vdev,
struct ol_txrx_peer_t *peer,
adf_nbuf_t msdu,
void *rx_desc)
{
#define FILTER_STATUS_REJECT 1
#define FILTER_STATUS_ACCEPT 0
u_int8_t *wh;
u_int32_t offset = 0;
u_int16_t ether_type = 0;
a_bool_t is_encrypted = A_FALSE, is_mcast = A_FALSE;
u_int8_t i;
privacy_filter_packet_type packet_type = PRIVACY_FILTER_PACKET_UNICAST;
ol_txrx_pdev_handle pdev = vdev->pdev;
htt_pdev_handle htt_pdev = pdev->htt_pdev;
int sec_idx;
/*
* Safemode must avoid the PrivacyExemptionList and
* ExcludeUnencrypted checking
*/
if (vdev->safemode) {
return FILTER_STATUS_ACCEPT;
}
is_mcast = htt_rx_msdu_is_wlan_mcast(htt_pdev, rx_desc);
if (vdev->num_filters > 0) {
if (pdev->frame_format == wlan_frm_fmt_native_wifi) {
offset = SIZEOF_80211_HDR + LLC_SNAP_HDR_OFFSET_ETHERTYPE;
} else {
offset = ETHERNET_ADDR_LEN * 2;
}
/* get header info from msdu */
wh = adf_nbuf_data(msdu);
/* get ether type */
ether_type = (wh[offset] << 8) | wh[offset+1];
/* get packet type */
if (A_TRUE == is_mcast) {
packet_type = PRIVACY_FILTER_PACKET_MULTICAST;
} else {
packet_type = PRIVACY_FILTER_PACKET_UNICAST;
}
}
/* get encrypt info */
is_encrypted = htt_rx_mpdu_is_encrypted(htt_pdev, rx_desc);
#ifdef ATH_SUPPORT_WAPI
if ((A_TRUE == is_encrypted) && ( ETHERTYPE_WAI == ether_type ))
{
/* We expect the WAI frames to be always unencrypted when the UMAC
* gets it.*/
return FILTER_STATUS_REJECT;
}
#endif //ATH_SUPPORT_WAPI
for (i = 0; i < vdev->num_filters; i++) {
privacy_filter filter_type;
privacy_filter_packet_type filter_packet_type;
/* skip if the ether type does not match */
if (vdev->privacy_filters[i].ether_type != ether_type) {
continue;
}
/* skip if the packet type does not match */
filter_packet_type = vdev->privacy_filters[i].packet_type;
if (filter_packet_type != packet_type &&
filter_packet_type != PRIVACY_FILTER_PACKET_BOTH)
{
continue;
}
filter_type = vdev->privacy_filters[i].filter_type;
if (filter_type == PRIVACY_FILTER_ALWAYS) {
/*
* In this case, we accept the frame if and only if it was
* originally NOT encrypted.
*/
if (A_TRUE == is_encrypted) {
return FILTER_STATUS_REJECT;
} else {
return FILTER_STATUS_ACCEPT;
}
} else if (filter_type == PRIVACY_FILTER_KEY_UNAVAILABLE) {
/*
* In this case, we reject the frame if it was originally NOT
* encrypted but we have the key mapping key for this frame.
*/
if (!is_encrypted && !is_mcast &&
peer->security[txrx_sec_ucast].sec_type != htt_sec_type_none &&
(peer->keyinstalled || !ETHERTYPE_IS_EAPOL_WAPI(ether_type)))
{
return FILTER_STATUS_REJECT;
} else {
return FILTER_STATUS_ACCEPT;
}
} else {
/*
* The privacy exemption does not apply to this frame.
*/
break;
}
}
/*
* If the privacy exemption list does not apply to the frame,
* check ExcludeUnencrypted.
* If ExcludeUnencrypted is not set, or if this was oringially
* an encrypted frame, it will be accepted.
*/
if (!vdev->drop_unenc || (A_TRUE == is_encrypted)) {
return FILTER_STATUS_ACCEPT;
}
/*
* If this is a open connection, it will be accepted.
*/
sec_idx = (A_TRUE == is_mcast) ? txrx_sec_mcast : txrx_sec_ucast;
if (peer->security[sec_idx].sec_type == htt_sec_type_none) {
return FILTER_STATUS_ACCEPT;
}
if ((A_FALSE == is_encrypted) && vdev->drop_unenc) {
OL_RX_ERR_STATISTICS(
pdev, vdev, OL_RX_ERR_PRIVACY,
pdev->sec_types[htt_sec_type_none], is_mcast);
}
return FILTER_STATUS_REJECT;
}
#ifdef WLAN_FEATURE_TSF_PLUS
static inline void ol_rx_timestamp(ol_pdev_handle pdev,
void *rx_desc, adf_nbuf_t msdu)
{
struct htt_rx_ppdu_desc_t *rx_ppdu_desc;
if (!ol_cfg_is_ptp_rx_opt_enabled(pdev))
return;
if (!rx_desc || !msdu)
return;
rx_ppdu_desc = (struct htt_rx_ppdu_desc_t *)((uint8_t *)(rx_desc) -
HTT_RX_IND_HL_BYTES + HTT_RX_IND_HDR_PREFIX_BYTES);
msdu->tstamp = ns_to_ktime((u_int64_t)rx_ppdu_desc->tsf32 *
NSEC_PER_USEC);
}
#else
static inline void ol_rx_timestamp(ol_pdev_handle pdev,
void *rx_desc, adf_nbuf_t msdu)
{
}
#endif
/**
* ol_convert_ieee80211_to_8023() - handle data header transition.
* @msdu - Received packet.
*
* This function try to convert the IEEE80211 data frame to 802.3 frame.
* When DSRC OCB interface works in RAW mode, driver received data frame
* started with IEEE802.11 header, before this packet is delivered to
* network stack, it is needed to do transition. But for QCOM specific
* frame, this function do nothing change.
*/
static A_STATUS ol_convert_ieee80211_to_8023(adf_nbuf_t msdu)
{
int hdr_size;
uint16_t epd_hdr_type;
struct ether_header eth_hdr;
struct ieee80211_frame *wh;
wh = (struct ieee80211_frame *)adf_nbuf_data(msdu);
if (!IEEE80211_IS_DATA(wh))
return A_ERROR;
hdr_size = ol_txrx_ieee80211_hdrsize(wh);
if (adf_nbuf_len(msdu) < (hdr_size + sizeof(epd_hdr_type)))
return A_ERROR;
epd_hdr_type = *(uint16_t *)(adf_nbuf_data(msdu) + hdr_size);
if (epd_hdr_type == adf_os_htons(ETHERTYPE_WSMP))
return A_ENOTSUP;
adf_os_mem_zero(&eth_hdr, sizeof(struct ether_header));
adf_os_mem_copy(eth_hdr.ether_dhost, wh->i_addr1, IEEE80211_ADDR_LEN);
adf_os_mem_copy(eth_hdr.ether_shost, wh->i_addr2, IEEE80211_ADDR_LEN);
eth_hdr.ether_type = epd_hdr_type;
adf_nbuf_pull_head(msdu, hdr_size + sizeof(epd_hdr_type));
adf_nbuf_push_head(msdu, sizeof(eth_hdr));
adf_os_mem_copy(adf_nbuf_data(msdu), &eth_hdr, sizeof(eth_hdr));
return A_OK;
}
void
ol_rx_deliver(
struct ol_txrx_vdev_t *vdev,
struct ol_txrx_peer_t *peer,
unsigned tid,
adf_nbuf_t msdu_list)
{
ol_txrx_pdev_handle pdev = vdev->pdev;
htt_pdev_handle htt_pdev = pdev->htt_pdev;
adf_nbuf_t deliver_list_head = NULL;
adf_nbuf_t deliver_list_tail = NULL;
adf_nbuf_t msdu;
a_bool_t filter = A_FALSE;
#ifdef QCA_SUPPORT_SW_TXRX_ENCAP
struct ol_rx_decap_info_t info;
adf_os_mem_set(&info, 0, sizeof(info));
#endif
msdu = msdu_list;
/*
* Check each MSDU to see whether it requires special handling,
* and free each MSDU's rx descriptor
*/
while (msdu) {
void *rx_desc;
int discard, inspect, dummy_fwd;
adf_nbuf_t next = adf_nbuf_next(msdu);
rx_desc = htt_rx_msdu_desc_retrieve(pdev->htt_pdev, msdu);
// for HL, point to payload right now
if (pdev->cfg.is_high_latency) {
adf_nbuf_pull_head(msdu,
htt_rx_msdu_rx_desc_size_hl(htt_pdev,
rx_desc));
}
#ifdef QCA_SUPPORT_SW_TXRX_ENCAP
info.is_msdu_cmpl_mpdu =
htt_rx_msdu_desc_completes_mpdu(htt_pdev, rx_desc);
info.is_first_subfrm = htt_rx_msdu_first_msdu_flag(htt_pdev, rx_desc);
if (OL_RX_DECAP(vdev, peer, msdu, &info) != A_OK) {
discard = 1;
TXRX_PRINT(TXRX_PRINT_LEVEL_WARN,
"decap error %pK from peer %pK "
"(%02x:%02x:%02x:%02x:%02x:%02x) len %d\n",
msdu, peer,
peer->mac_addr.raw[0], peer->mac_addr.raw[1],
peer->mac_addr.raw[2], peer->mac_addr.raw[3],
peer->mac_addr.raw[4], peer->mac_addr.raw[5],
adf_nbuf_len(msdu));
goto DONE;
}
#endif
htt_rx_msdu_actions(
pdev->htt_pdev, rx_desc, &discard, &dummy_fwd, &inspect);
if (inspect) {
ol_rx_inspect(vdev, peer, tid, msdu, rx_desc);
}
/*
* Check the first msdu in the mpdu, if it will be filtered out,
* then discard the entire mpdu.
*/
if (htt_rx_msdu_first_msdu_flag(htt_pdev, rx_desc)) {
filter = ol_rx_filter(vdev, peer, msdu, rx_desc);
}
#ifdef QCA_SUPPORT_SW_TXRX_ENCAP
DONE:
#endif
htt_rx_msdu_desc_free(htt_pdev, msdu);
if (discard || (A_TRUE == filter)) {
OL_TXRX_FRMS_DUMP(
"rx discarding:",
pdev, deliver_list_head,
ol_txrx_frm_dump_tcp_seq | ol_txrx_frm_dump_contents,
0 /* don't print contents */);
adf_nbuf_free(msdu);
/* If discarding packet is last packet of the delivery list,NULL terminator should be added for delivery list. */
if (next == NULL && deliver_list_head){
adf_nbuf_set_next(deliver_list_tail, NULL); /* add NULL terminator */
}
} else {
/* If this is for OCB, then prepend the RX stats header. */
if (vdev->opmode == wlan_op_mode_ocb) {
int i;
struct ol_txrx_ocb_chan_info *chan_info = 0;
int packet_freq = peer->last_pkt_center_freq;
bool need_rx_stats_hdr = false;
for (i = 0; i < vdev->ocb_channel_count; i++) {
if (vdev->ocb_channel_info[i].chan_freq == packet_freq) {
chan_info = &vdev->ocb_channel_info[i];
break;
}
}
if (NULL != chan_info)
need_rx_stats_hdr = !chan_info->disable_rx_stats_hdr;
if (vdev->ocb_config_flags & OCB_CONFIG_FLAG_80211_FRAME_MODE) {
/*
* When DSRC OCB interface works in raw mode,
* and received packets started with 802.11 data header,
* it is required to driver convert the header to
* 802.3 header, except specific WSMP data frame.
*/
A_STATUS status = ol_convert_ieee80211_to_8023(msdu);
if (A_SUCCESS(status))
need_rx_stats_hdr = false;
}
if (need_rx_stats_hdr) {
struct ether_header eth_header = { {0} };
struct ocb_rx_stats_hdr_t rx_header = {0};
/*
* Construct the RX stats header and push that to the front
* of the packet.
*/
rx_header.version = 1;
rx_header.length = sizeof(rx_header);
rx_header.channel_freq = peer->last_pkt_center_freq;
rx_header.rssi_cmb = peer->last_pkt_rssi_cmb;
adf_os_mem_copy(rx_header.rssi, peer->last_pkt_rssi,
sizeof(rx_header.rssi));
adf_os_mem_copy(rx_header.noise_floor,
peer->last_pkt_noise_floor,
sizeof(rx_header.noise_floor));
if (peer->last_pkt_legacy_rate_sel == 0) {
switch (peer->last_pkt_legacy_rate) {
case 0x8:
rx_header.datarate = 6;
break;
case 0x9:
rx_header.datarate = 4;
break;
case 0xA:
rx_header.datarate = 2;
break;
case 0xB:
rx_header.datarate = 0;
break;
case 0xC:
rx_header.datarate = 7;
break;
case 0xD:
rx_header.datarate = 5;
break;
case 0xE:
rx_header.datarate = 3;
break;
case 0xF:
rx_header.datarate = 1;
break;
default:
rx_header.datarate = 0xFF;
break;
}
} else {
rx_header.datarate = 0xFF;
}
rx_header.timestamp_microsec =
peer->last_pkt_timestamp_microsec;
rx_header.timestamp_submicrosec =
peer->last_pkt_timestamp_submicrosec;
rx_header.tsf32 = peer->last_pkt_tsf;
rx_header.ext_tid = peer->last_pkt_tid;
adf_nbuf_push_head(msdu, sizeof(rx_header));
adf_os_mem_copy(adf_nbuf_data(msdu), &rx_header,
sizeof(rx_header));
/* Construct the ethernet header with type 0x8152 and push
that to the front of the packet to indicate the RX stats
header. */
eth_header.ether_type = adf_os_htons(ETHERTYPE_OCB_RX);
adf_nbuf_push_head(msdu, sizeof(eth_header));
adf_os_mem_copy(adf_nbuf_data(msdu), &eth_header,
sizeof(eth_header));
}
}
OL_RX_PEER_STATS_UPDATE(peer, msdu);
OL_RX_ERR_STATISTICS_1(pdev, vdev, peer, rx_desc, OL_RX_ERR_NONE);
TXRX_STATS_MSDU_INCR(vdev->pdev, rx.delivered, msdu);
ol_rx_timestamp(pdev->ctrl_pdev, rx_desc, msdu);
OL_TXRX_LIST_APPEND(deliver_list_head, deliver_list_tail, msdu);
}
msdu = next;
}
/* sanity check - are there any frames left to give to the OS shim? */
if (!deliver_list_head) {
return;
}
#if defined(PERE_IP_HDR_ALIGNMENT_WAR)
if (pdev->host_80211_enable) {
for (msdu = deliver_list_head; msdu; msdu = adf_nbuf_next(msdu)) {
transcap_nwifi_to_8023(msdu);
}
}
#endif
OL_TXRX_FRMS_DUMP(
"rx delivering:",
pdev, deliver_list_head,
ol_txrx_frm_dump_tcp_seq | ol_txrx_frm_dump_contents,
0 /* don't print contents */);
OL_RX_OSIF_DELIVER(vdev, peer, deliver_list_head);
}
void
ol_rx_discard(
struct ol_txrx_vdev_t *vdev,
struct ol_txrx_peer_t *peer,
unsigned tid,
adf_nbuf_t msdu_list)
{
ol_txrx_pdev_handle pdev = vdev->pdev;
htt_pdev_handle htt_pdev = pdev->htt_pdev;
while (msdu_list) {
adf_nbuf_t msdu = msdu_list;
msdu_list = adf_nbuf_next(msdu_list);
TXRX_PRINT(TXRX_PRINT_LEVEL_INFO1,
"discard rx %pK from partly-deleted peer %pK "
"(%02x:%02x:%02x:%02x:%02x:%02x)\n",
msdu, peer,
peer->mac_addr.raw[0], peer->mac_addr.raw[1],
peer->mac_addr.raw[2], peer->mac_addr.raw[3],
peer->mac_addr.raw[4], peer->mac_addr.raw[5]);
htt_rx_desc_frame_free(htt_pdev, msdu);
}
}
void
ol_rx_peer_init(struct ol_txrx_pdev_t *pdev, struct ol_txrx_peer_t *peer)
{
u_int8_t tid;
for (tid = 0; tid < OL_TXRX_NUM_EXT_TIDS; tid++) {
ol_rx_reorder_init(&peer->tids_rx_reorder[tid], tid);
/* invalid sequence number */
peer->tids_last_seq[tid] = IEEE80211_SEQ_MAX;
/* invalid reorder index number */
peer->tids_next_rel_idx[tid] = INVALID_REORDER_INDEX;
}
/*
* Set security defaults: no PN check, no security.
* The target may send a HTT SEC_IND message to overwrite these defaults.
*/
peer->security[txrx_sec_ucast].sec_type =
peer->security[txrx_sec_mcast].sec_type = htt_sec_type_none;
peer->keyinstalled = 0;
peer->last_assoc_rcvd = 0;
peer->last_disassoc_rcvd = 0;
peer->last_deauth_rcvd = 0;
adf_os_atomic_init(&peer->fw_pn_check);
}
void
ol_rx_peer_cleanup(struct ol_txrx_vdev_t *vdev, struct ol_txrx_peer_t *peer)
{
peer->keyinstalled = 0;
peer->last_assoc_rcvd = 0;
peer->last_disassoc_rcvd = 0;
peer->last_deauth_rcvd = 0;
ol_rx_reorder_peer_cleanup(vdev, peer);
adf_os_mem_free(peer->reorder_history);
peer->reorder_history = NULL;
}
/*
* Free frames including both rx descriptors and buffers
*/
void
ol_rx_frames_free(
htt_pdev_handle htt_pdev,
adf_nbuf_t frames)
{
adf_nbuf_t next, frag = frames;
while (frag) {
next = adf_nbuf_next(frag);
htt_rx_desc_frame_free(htt_pdev, frag);
frag = next;
}
}
void
ol_rx_in_order_indication_handler(
ol_txrx_pdev_handle pdev,
adf_nbuf_t rx_ind_msg,
u_int16_t peer_id,
u_int8_t tid,
u_int8_t is_offload )
{
struct ol_txrx_vdev_t *vdev = NULL;
struct ol_txrx_peer_t *peer = NULL;
htt_pdev_handle htt_pdev = NULL;
int status;
adf_nbuf_t head_msdu, tail_msdu = NULL;
if (pdev) {
peer = ol_txrx_peer_find_by_id(pdev, peer_id);
if (VOS_MONITOR_MODE == vos_get_conparam())
peer = pdev->self_peer;
htt_pdev = pdev->htt_pdev;
} else {
TXRX_PRINT(TXRX_PRINT_LEVEL_ERR,
"%s: Invalid pdev passed!\n", __FUNCTION__);
adf_os_assert_always(pdev);
return;
}
/*
* Get a linked list of the MSDUs in the rx in order indication.
* This also attaches each rx MSDU descriptor to the
* corresponding rx MSDU network buffer.
*/
status = htt_rx_amsdu_pop(htt_pdev, rx_ind_msg, &head_msdu, &tail_msdu);
if (adf_os_unlikely(0 == status)) {
TXRX_PRINT(TXRX_PRINT_LEVEL_WARN,
"%s: Pop status is 0, returning here\n", __FUNCTION__);
return;
}
/* Replenish the rx buffer ring first to provide buffers to the target
rather than waiting for the indeterminate time taken by the OS to consume
the rx frames */
htt_rx_msdu_buff_replenish(htt_pdev);
/* Send the chain of MSDUs to the OS */
/* rx_opt_proc takes a NULL-terminated list of msdu netbufs */
adf_nbuf_set_next(tail_msdu, NULL);
/* Pktlog */
#ifdef WDI_EVENT_ENABLE
wdi_event_handler(WDI_EVENT_RX_DESC_REMOTE, pdev, head_msdu);
#endif
/* if this is an offload indication, peer id is carried in the rx buffer */
if (peer) {
vdev = peer->vdev;
} else {
TXRX_PRINT(TXRX_PRINT_LEVEL_INFO2,
"%s: Couldn't find peer from ID 0x%x\n", __FUNCTION__,
peer_id);
while (head_msdu) {
adf_nbuf_t msdu = head_msdu;
head_msdu = adf_nbuf_next(head_msdu);
htt_rx_desc_frame_free(htt_pdev, msdu);
}
return;
}
peer->rx_opt_proc(vdev, peer, tid, head_msdu);
}
/**
* ol_rx_pkt_dump_call() - updates status and
* calls packetdump callback to log rx packet
*
* @msdu: rx packet
* @peer_id: peer id
* @status: status of rx packet
*
* This function is used to update the status of rx packet
* and then calls packetdump callback to log that packet.
*
* Return: None
*
*/
void ol_rx_pkt_dump_call(
adf_nbuf_t msdu,
struct ol_txrx_peer_t *peer,
uint8_t status)
{
v_CONTEXT_t vos_context;
ol_txrx_pdev_handle pdev;
vos_context = vos_get_global_context(VOS_MODULE_ID_TXRX, NULL);
pdev = vos_get_context(VOS_MODULE_ID_TXRX, vos_context);
if (!pdev) {
TXRX_PRINT(TXRX_PRINT_LEVEL_ERR,
"%s: pdev is NULL", __func__);
return;
}
if (pdev->ol_rx_packetdump_cb) {
if (!peer)
return;
pdev->ol_rx_packetdump_cb(msdu, status, peer->vdev->vdev_id,
RX_DATA_PKT);
}
}
/* the msdu_list passed here must be NULL terminated */
void
ol_rx_in_order_deliver(
struct ol_txrx_vdev_t *vdev,
struct ol_txrx_peer_t *peer,
unsigned tid,
adf_nbuf_t msdu_list)
{
adf_nbuf_t msdu;
msdu = msdu_list;
/*
* Currently, this does not check each MSDU to see whether it requires
* special handling. MSDUs that need special handling (example: IGMP frames)
* should be sent via a seperate HTT message. Also, this does not do rx->tx
* forwarding or filtering.
*/
while (msdu) {
adf_nbuf_t next = adf_nbuf_next(msdu);
DPTRACE(adf_dp_trace(msdu,
ADF_DP_TRACE_RX_TXRX_PACKET_PTR_RECORD,
adf_nbuf_data_addr(msdu),
sizeof(adf_nbuf_data(msdu)), ADF_RX));
OL_RX_PEER_STATS_UPDATE(peer, msdu);
OL_RX_ERR_STATISTICS_1(vdev->pdev, vdev, peer, rx_desc, OL_RX_ERR_NONE);
TXRX_STATS_MSDU_INCR(vdev->pdev, rx.delivered, msdu);
msdu = next;
}
OL_TXRX_FRMS_DUMP(
"rx delivering:",
pdev, deliver_list_head,
ol_txrx_frm_dump_tcp_seq | ol_txrx_frm_dump_contents,
0 /* don't print contents */);
OL_RX_OSIF_DELIVER(vdev, peer, msdu_list);
}
/**
* ol_rx_log_packet() - log rx packet
* @htt_pdev: htt pdev
* @peer_id: peer_id
* @msdu: skb
*
* Return: none
*/
void ol_rx_log_packet(htt_pdev_handle htt_pdev,
uint8_t peer_id, adf_nbuf_t msdu)
{
struct ol_txrx_peer_t *peer;
peer = ol_txrx_peer_find_by_id(htt_pdev->txrx_pdev, peer_id);
if (peer)
adf_dp_trace_log_pkt(peer->vdev->vdev_id, msdu, ADF_RX);
}
void
ol_rx_offload_paddr_deliver_ind_handler(
htt_pdev_handle htt_pdev,
u_int32_t msdu_count,
u_int32_t * msg_word )
{
int vdev_id, peer_id, tid;
adf_nbuf_t head_buf, tail_buf, buf;
struct ol_txrx_peer_t *peer;
struct ol_txrx_vdev_t *vdev = NULL;
u_int8_t fw_desc;
int msdu_iter = 0;
while (msdu_count) {
htt_rx_offload_paddr_msdu_pop_ll(
htt_pdev, msg_word, msdu_iter, &vdev_id,
&peer_id, &tid, &fw_desc, &head_buf, &tail_buf);
peer = ol_txrx_peer_find_by_id(htt_pdev->txrx_pdev, peer_id);
if (peer && peer->vdev) {
adf_dp_trace_set_track(head_buf, ADF_RX);
NBUF_SET_PACKET_TRACK(head_buf, NBUF_TX_PKT_DATA_TRACK);
adf_dp_trace_log_pkt(peer->vdev->vdev_id,
head_buf, ADF_RX);
DPTRACE(adf_dp_trace(head_buf,
ADF_DP_TRACE_RX_OFFLOAD_HTT_PACKET_PTR_RECORD,
adf_nbuf_data_addr(head_buf),
sizeof(adf_nbuf_data(head_buf)), ADF_RX));
vdev = peer->vdev;
OL_RX_OSIF_DELIVER(vdev, peer, head_buf);
} else {
buf = head_buf;
while (1) {
adf_nbuf_t next;
next = adf_nbuf_next(buf);
htt_rx_desc_frame_free(htt_pdev, buf);
if (buf == tail_buf) {
break;
}
buf = next;
}
}
msdu_iter++;
msdu_count--;
}
htt_rx_msdu_buff_replenish(htt_pdev);
}
void
ol_rx_mic_error_handler(
ol_txrx_pdev_handle pdev,
u_int8_t tid,
u_int16_t peer_id,
void * msdu_desc,
adf_nbuf_t msdu )
{
union htt_rx_pn_t pn = {0};
u_int8_t key_id = 0;
struct ol_txrx_peer_t *peer = NULL;
struct ol_txrx_vdev_t *vdev = NULL;
if (pdev) {
peer = ol_txrx_peer_find_by_id(pdev, peer_id);
if (peer) {
vdev = peer->vdev;
if (vdev) {
htt_rx_mpdu_desc_pn(vdev->pdev->htt_pdev, msdu_desc, &pn, 48);
if (htt_rx_msdu_desc_key_id(vdev->pdev->htt_pdev, msdu_desc, &key_id)
== A_TRUE) {
ol_rx_err(vdev->pdev->ctrl_pdev, vdev->vdev_id,
peer->mac_addr.raw, tid, 0,
OL_RX_ERR_TKIP_MIC, msdu, &pn.pn48, key_id);
}
}
}
}
}
#if 0
/**
* @brief populates vow ext stats in given network buffer.
* @param msdu - network buffer handle
* @param pdev - handle to htt dev.
*/
void ol_ath_add_vow_extstats(htt_pdev_handle pdev, adf_nbuf_t msdu)
{
/* FIX THIS:
* txrx should not be directly using data types (scn)
* that are internal to other modules.
*/
struct ol_ath_softc_net80211 *scn =
(struct ol_ath_softc_net80211 *)pdev->ctrl_pdev;
if (scn->vow_extstats == 0) {
return;
} else {
u_int8_t *data, *l3_hdr, *bp;
u_int16_t ethertype;
int offset;
struct vow_extstats vowstats;
data = adf_nbuf_data(msdu);
offset = ETHERNET_ADDR_LEN * 2;
l3_hdr = data + ETHERNET_HDR_LEN;
ethertype = (data[offset] << 8) | data[offset+1];
if (ethertype == ETHERTYPE_IPV4) {
offset = IPV4_HDR_OFFSET_PROTOCOL;
if ((l3_hdr[offset] == IP_PROTOCOL_UDP) &&
(l3_hdr[0] == IP_VER4_N_NO_EXTRA_HEADERS))
{
bp = data+EXT_HDR_OFFSET;
if ( (data[RTP_HDR_OFFSET] == UDP_PDU_RTP_EXT) &&
(bp[0] == 0x12) &&
(bp[1] == 0x34) &&
(bp[2] == 0x00) &&
(bp[3] == 0x08))
{
/*
* Clear UDP checksum so we do not have to recalculate it
* after filling in status fields.
*/
data[UDP_CKSUM_OFFSET] = 0;
data[(UDP_CKSUM_OFFSET+1)] = 0;
bp += IPERF3_DATA_OFFSET;
htt_rx_get_vowext_stats(msdu, &vowstats);
/* control channel RSSI */
*bp++ = vowstats.rx_rssi_ctl0;
*bp++ = vowstats.rx_rssi_ctl1;
*bp++ = vowstats.rx_rssi_ctl2;
/* rx rate info */
*bp++ = vowstats.rx_bw;
*bp++ = vowstats.rx_sgi;
*bp++ = vowstats.rx_nss;
*bp++ = vowstats.rx_rssi_comb;
*bp++ = vowstats.rx_rs_flags; /* rsflags */
/* Time stamp Lo*/
*bp++ = (u_int8_t)
((vowstats.rx_macTs & 0x0000ff00) >> 8);
*bp++ = (u_int8_t)
(vowstats.rx_macTs & 0x000000ff);
/* rx phy errors */
*bp++ = (u_int8_t)
((scn->chan_stats.phy_err_cnt >> 8) & 0xff);
*bp++ = (u_int8_t)(scn->chan_stats.phy_err_cnt & 0xff);
/* rx clear count */
*bp++ = (u_int8_t)
((scn->mib_cycle_cnts.rx_clear_count >> 24) & 0xff);
*bp++ = (u_int8_t)
((scn->mib_cycle_cnts.rx_clear_count >> 16) & 0xff);
*bp++ = (u_int8_t)
((scn->mib_cycle_cnts.rx_clear_count >> 8) & 0xff);
*bp++ = (u_int8_t)
(scn->mib_cycle_cnts.rx_clear_count & 0xff);
/* rx cycle count */
*bp++ = (u_int8_t)
((scn->mib_cycle_cnts.cycle_count >> 24) & 0xff);
*bp++ = (u_int8_t)
((scn->mib_cycle_cnts.cycle_count >> 16) & 0xff);
*bp++ = (u_int8_t)
((scn->mib_cycle_cnts.cycle_count >> 8) & 0xff);
*bp++ = (u_int8_t)
(scn->mib_cycle_cnts.cycle_count & 0xff);
*bp++ = vowstats.rx_ratecode;
*bp++ = vowstats.rx_moreaggr;
/* sequence number */
*bp++ = (u_int8_t)((vowstats.rx_seqno >> 8) & 0xff);
*bp++ = (u_int8_t)(vowstats.rx_seqno & 0xff);
}
}
}
}
}
#endif