e156103cee
In XMIT path, the skb that we get from the kernel itself is not aligned with 4-byte boundary on some embedded platforms. Had it not been the presence of tx_pkt_offset field in txpd, 4 byte memory alignment was not possible without memmove of entire skb. And that would have increased MIPS instead of reducing. With this patch few memory cycles can be saved while fetching interface header and txpd structure because of 4 bytes memory alignment. Reported-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Tested-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
131 lines
3.2 KiB
C
131 lines
3.2 KiB
C
/*
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* Marvell Wireless LAN device driver: generic data structures and APIs
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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_DECL_H_
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#define _MWIFIEX_DECL_H_
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#undef pr_fmt
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/wait.h>
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#include <linux/timer.h>
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#include <linux/ieee80211.h>
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#define MWIFIEX_MAX_BSS_NUM (1)
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#define MWIFIEX_MIN_DATA_HEADER_LEN 36 /* sizeof(mwifiex_txpd)
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* + 4 byte alignment
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*/
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#define MWIFIEX_MAX_TX_BASTREAM_SUPPORTED 2
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#define MWIFIEX_MAX_RX_BASTREAM_SUPPORTED 16
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#define MWIFIEX_AMPDU_DEF_TXWINSIZE 32
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#define MWIFIEX_AMPDU_DEF_RXWINSIZE 16
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#define MWIFIEX_DEFAULT_BLOCK_ACK_TIMEOUT 0xffff
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#define MWIFIEX_RATE_INDEX_HRDSSS0 0
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#define MWIFIEX_RATE_INDEX_HRDSSS3 3
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#define MWIFIEX_RATE_INDEX_OFDM0 4
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#define MWIFIEX_RATE_INDEX_OFDM7 11
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#define MWIFIEX_RATE_INDEX_MCS0 12
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#define MWIFIEX_RATE_BITMAP_OFDM0 16
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#define MWIFIEX_RATE_BITMAP_OFDM7 23
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#define MWIFIEX_RATE_BITMAP_MCS0 32
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#define MWIFIEX_RATE_BITMAP_MCS127 159
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#define MWIFIEX_RX_DATA_BUF_SIZE (4 * 1024)
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#define MWIFIEX_RTS_MIN_VALUE (0)
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#define MWIFIEX_RTS_MAX_VALUE (2347)
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#define MWIFIEX_FRAG_MIN_VALUE (256)
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#define MWIFIEX_FRAG_MAX_VALUE (2346)
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#define MWIFIEX_SDIO_BLOCK_SIZE 256
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#define MWIFIEX_BUF_FLAG_REQUEUED_PKT BIT(0)
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enum mwifiex_bss_type {
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MWIFIEX_BSS_TYPE_STA = 0,
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MWIFIEX_BSS_TYPE_UAP = 1,
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MWIFIEX_BSS_TYPE_ANY = 0xff,
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};
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enum mwifiex_bss_role {
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MWIFIEX_BSS_ROLE_STA = 0,
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MWIFIEX_BSS_ROLE_UAP = 1,
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MWIFIEX_BSS_ROLE_ANY = 0xff,
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};
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#define BSS_ROLE_BIT_MASK BIT(0)
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#define GET_BSS_ROLE(priv) ((priv)->bss_role & BSS_ROLE_BIT_MASK)
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enum mwifiex_data_frame_type {
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MWIFIEX_DATA_FRAME_TYPE_ETH_II = 0,
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MWIFIEX_DATA_FRAME_TYPE_802_11,
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};
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struct mwifiex_fw_image {
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u8 *helper_buf;
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u32 helper_len;
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u8 *fw_buf;
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u32 fw_len;
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};
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struct mwifiex_802_11_ssid {
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u32 ssid_len;
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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};
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struct mwifiex_wait_queue {
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wait_queue_head_t wait;
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u16 condition;
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int status;
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};
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struct mwifiex_rxinfo {
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u8 bss_index;
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struct sk_buff *parent;
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u8 use_count;
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};
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struct mwifiex_txinfo {
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u32 status_code;
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u8 flags;
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u8 bss_index;
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};
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struct mwifiex_bss_attr {
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u8 bss_type;
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u8 frame_type;
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u8 active;
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u8 bss_priority;
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u8 bss_num;
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};
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enum mwifiex_wmm_ac_e {
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WMM_AC_BK,
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WMM_AC_BE,
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WMM_AC_VI,
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WMM_AC_VO
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} __packed;
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#endif /* !_MWIFIEX_DECL_H_ */
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