29417fc9d2
Implement a new driver module for Mirrored stream classification signalling(MSCS) feature. This module which register to NSS MSCS client to provide callback for peer lookup and priority update based on MSCS parameters associated with a peer Change-Id: I7aa465446cb22f0198459193fa04dd66fc903cc7
109 wiersze
3.1 KiB
C
109 wiersze
3.1 KiB
C
/*
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* Copyright (c) 2020 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "dp_peer.h"
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#include "qdf_nbuf.h"
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#include "dp_types.h"
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#include "dp_internal.h"
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#include "dp_tx.h"
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#include "dp_mscs.h"
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#define DP_MSCS_INVALID_TID 0xFF
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#define DP_MSCS_VALID_TID_MASK 0x7
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/**
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* dp_mscs_peer_lookup_n_get_priority() - Get priority for MSCS peer
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* @soc_hdl - soc handle
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* @src_mac_addr - src mac address from connection
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* @nbuf - network buffer
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*
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* Return: 0 when peer has active mscs session and valid user priority
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*/
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int dp_mscs_peer_lookup_n_get_priority(struct cdp_soc_t *soc_hdl,
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uint8_t *src_mac_addr, qdf_nbuf_t nbuf)
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{
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struct dp_peer *peer;
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uint8_t user_prio_bitmap;
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uint8_t user_prio_limit;
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uint8_t user_prio;
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int status = 0;
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struct dp_soc *dpsoc = cdp_soc_t_to_dp_soc(soc_hdl);
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if (!dpsoc) {
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QDF_TRACE(QDF_MODULE_ID_MSCS, QDF_TRACE_LEVEL_ERROR,
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"%s: Invalid soc\n", __func__);
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return -1;
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}
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/*
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* Find the MSCS peer from global soc
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*/
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peer = dp_peer_find_hash_find(dpsoc, src_mac_addr, 0,
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DP_VDEV_ALL, DP_MOD_ID_MSCS);
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if (!peer) {
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/*
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* No WLAN client peer found with this peer mac
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*/
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return -1;
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}
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/*
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* check if there is any active MSCS session for this peer
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*/
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if (!peer->mscs_active) {
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QDF_TRACE(QDF_MODULE_ID_MSCS, QDF_TRACE_LEVEL_DEBUG,
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"%s: MSCS session not active on peer or peer delete in progress\n", __func__);
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status = 1;
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goto fail;
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}
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/*
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* Get user priority bitmap for this peer MSCS active session
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*/
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user_prio_bitmap = peer->mscs_ipv4_parameter.user_priority_bitmap;
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user_prio_limit = peer->mscs_ipv4_parameter.user_priority_limit;
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user_prio = qdf_nbuf_get_priority(nbuf) & DP_MSCS_VALID_TID_MASK;
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/*
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* check if nbuf priority is matching with any of the valid priority value
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*/
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if (!((1 << user_prio) & user_prio_bitmap)) {
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QDF_TRACE(QDF_MODULE_ID_MSCS, QDF_TRACE_LEVEL_DEBUG,
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"%s: Nbuf TID is not valid, no match in user prioroty bitmap\n", __func__);
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status = 1;
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goto fail;
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}
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user_prio = QDF_MIN(user_prio, user_prio_limit);
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/*
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* Update skb priority
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*/
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qdf_nbuf_set_priority(nbuf, user_prio);
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QDF_TRACE(QDF_MODULE_ID_MSCS, QDF_TRACE_LEVEL_DEBUG,
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"%s: User priority for this MSCS session %d\n", __func__, user_prio);
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status = 0;
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fail:
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if (peer)
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dp_peer_unref_delete(peer, DP_MOD_ID_MSCS);
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return status;
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}
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qdf_export_symbol(dp_mscs_peer_lookup_n_get_priority);
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