47411a06c0
This patch adds support for multiple TX queues inside mwifiex driver. Four different queues according to WMM access categories are defined for each virtual interface. When a packet is received from netdev for transmission, tx pending count for particular queue is incremented and if tx pending count has reached upper water-mark, this queue is stopped instead of stopping all queues. Similarly when a packet is successfully transmitted from device, tx pending count is decremented per queue and if pending count falls below lower water-mark, queue operations are again resumed. This ensures that not all tranmission is blocked if traffic with particular TOS value suddenly increases. Also wake all queues after association/IBSS_join/uAP_BSS_start to enable traffic on all queues. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
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* Marvell Wireless LAN device driver: WMM
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*
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* Copyright (C) 2011, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#ifndef _MWIFIEX_WMM_H_
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#define _MWIFIEX_WMM_H_
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enum ieee_types_wmm_aciaifsn_bitmasks {
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MWIFIEX_AIFSN = (BIT(0) | BIT(1) | BIT(2) | BIT(3)),
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MWIFIEX_ACM = BIT(4),
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MWIFIEX_ACI = (BIT(5) | BIT(6)),
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};
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enum ieee_types_wmm_ecw_bitmasks {
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MWIFIEX_ECW_MIN = (BIT(0) | BIT(1) | BIT(2) | BIT(3)),
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MWIFIEX_ECW_MAX = (BIT(4) | BIT(5) | BIT(6) | BIT(7)),
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};
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static const u16 mwifiex_1d_to_wmm_queue[8] = { 1, 0, 0, 1, 2, 2, 3, 3 };
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/*
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* This function retrieves the TID of the given RA list.
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*/
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static inline int
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mwifiex_get_tid(struct mwifiex_ra_list_tbl *ptr)
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{
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struct sk_buff *skb;
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if (skb_queue_empty(&ptr->skb_head))
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return 0;
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skb = skb_peek(&ptr->skb_head);
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return skb->priority;
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}
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/*
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* This function gets the length of a list.
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*/
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static inline int
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mwifiex_wmm_list_len(struct list_head *head)
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{
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struct list_head *pos;
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int count = 0;
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list_for_each(pos, head)
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++count;
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return count;
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}
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/*
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* This function checks if a RA list is empty or not.
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*/
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static inline u8
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mwifiex_wmm_is_ra_list_empty(struct list_head *ra_list_hhead)
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{
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struct mwifiex_ra_list_tbl *ra_list;
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int is_list_empty;
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list_for_each_entry(ra_list, ra_list_hhead, list) {
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is_list_empty = skb_queue_empty(&ra_list->skb_head);
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if (!is_list_empty)
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return false;
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}
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return true;
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}
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void mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
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struct sk_buff *skb);
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void mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra);
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int mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter);
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void mwifiex_wmm_process_tx(struct mwifiex_adapter *adapter);
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int mwifiex_is_ralist_valid(struct mwifiex_private *priv,
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struct mwifiex_ra_list_tbl *ra_list, int tid);
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u8 mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv,
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const struct sk_buff *skb);
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void mwifiex_wmm_init(struct mwifiex_adapter *adapter);
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extern u32 mwifiex_wmm_process_association_req(struct mwifiex_private *priv,
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u8 **assoc_buf,
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struct ieee_types_wmm_parameter
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*wmmie,
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struct ieee80211_ht_cap
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*htcap);
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void mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv,
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struct ieee_types_wmm_parameter
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*wmm_ie);
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void mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private *priv);
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extern int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
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const struct host_cmd_ds_command *resp);
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#endif /* !_MWIFIEX_WMM_H_ */
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