627 lines
19 KiB
C
627 lines
19 KiB
C
/*
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* Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
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* Copyright (c) 2018, 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 any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef WIL6210_TXRX_H
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#define WIL6210_TXRX_H
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#include "wil6210.h"
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#include "txrx_edma.h"
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#define BUF_SW_OWNED (1)
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#define BUF_HW_OWNED (0)
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/* default size of MAC Tx/Rx buffers */
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#define TXRX_BUF_LEN_DEFAULT (2048)
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/* how many bytes to reserve for rtap header? */
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#define WIL6210_RTAP_SIZE (128)
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/* Tx/Rx path */
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static inline dma_addr_t wil_desc_addr(struct wil_ring_dma_addr *addr)
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{
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return le32_to_cpu(addr->addr_low) |
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((u64)le16_to_cpu(addr->addr_high) << 32);
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}
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static inline void wil_desc_addr_set(struct wil_ring_dma_addr *addr,
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dma_addr_t pa)
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{
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addr->addr_low = cpu_to_le32(lower_32_bits(pa));
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addr->addr_high = cpu_to_le16((u16)upper_32_bits(pa));
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}
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/* Tx descriptor - MAC part
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* [dword 0]
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* bit 0.. 9 : lifetime_expiry_value:10
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* bit 10 : interrupt_en:1
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* bit 11 : status_en:1
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* bit 12..13 : txss_override:2
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* bit 14 : timestamp_insertion:1
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* bit 15 : duration_preserve:1
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* bit 16..21 : reserved0:6
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* bit 22..26 : mcs_index:5
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* bit 27 : mcs_en:1
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* bit 28..30 : reserved1:3
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* bit 31 : sn_preserved:1
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* [dword 1]
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* bit 0.. 3 : pkt_mode:4
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* bit 4 : pkt_mode_en:1
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* bit 5 : mac_id_en:1
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* bit 6..7 : mac_id:2
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* bit 8..14 : reserved0:7
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* bit 15 : ack_policy_en:1
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* bit 16..19 : dst_index:4
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* bit 20 : dst_index_en:1
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* bit 21..22 : ack_policy:2
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* bit 23 : lifetime_en:1
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* bit 24..30 : max_retry:7
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* bit 31 : max_retry_en:1
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* [dword 2]
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* bit 0.. 7 : num_of_descriptors:8
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* bit 8..17 : reserved:10
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* bit 18..19 : l2_translation_type:2 00 - bypass, 01 - 802.3, 10 - 802.11
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* bit 20 : snap_hdr_insertion_en:1
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* bit 21 : vlan_removal_en:1
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* bit 22..31 : reserved0:10
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* [dword 3]
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* bit 0.. 31: ucode_cmd:32
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*/
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struct vring_tx_mac {
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u32 d[3];
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u32 ucode_cmd;
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} __packed;
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/* TX MAC Dword 0 */
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#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_POS 0
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#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_LEN 10
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#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_MSK 0x3FF
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#define MAC_CFG_DESC_TX_0_INTERRUP_EN_POS 10
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#define MAC_CFG_DESC_TX_0_INTERRUP_EN_LEN 1
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#define MAC_CFG_DESC_TX_0_INTERRUP_EN_MSK 0x400
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#define MAC_CFG_DESC_TX_0_STATUS_EN_POS 11
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#define MAC_CFG_DESC_TX_0_STATUS_EN_LEN 1
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#define MAC_CFG_DESC_TX_0_STATUS_EN_MSK 0x800
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#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_POS 12
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#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_LEN 2
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#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_MSK 0x3000
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#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_POS 14
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#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_LEN 1
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#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_MSK 0x4000
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#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_POS 15
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#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_LEN 1
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#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_MSK 0x8000
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#define MAC_CFG_DESC_TX_0_MCS_INDEX_POS 22
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#define MAC_CFG_DESC_TX_0_MCS_INDEX_LEN 5
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#define MAC_CFG_DESC_TX_0_MCS_INDEX_MSK 0x7C00000
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#define MAC_CFG_DESC_TX_0_MCS_EN_POS 27
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#define MAC_CFG_DESC_TX_0_MCS_EN_LEN 1
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#define MAC_CFG_DESC_TX_0_MCS_EN_MSK 0x8000000
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#define MAC_CFG_DESC_TX_0_SN_PRESERVED_POS 31
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#define MAC_CFG_DESC_TX_0_SN_PRESERVED_LEN 1
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#define MAC_CFG_DESC_TX_0_SN_PRESERVED_MSK 0x80000000
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/* TX MAC Dword 1 */
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#define MAC_CFG_DESC_TX_1_PKT_MODE_POS 0
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#define MAC_CFG_DESC_TX_1_PKT_MODE_LEN 4
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#define MAC_CFG_DESC_TX_1_PKT_MODE_MSK 0xF
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#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_POS 4
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#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_LEN 1
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#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_MSK 0x10
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#define MAC_CFG_DESC_TX_1_MAC_ID_EN_POS 5
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#define MAC_CFG_DESC_TX_1_MAC_ID_EN_LEN 1
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#define MAC_CFG_DESC_TX_1_MAC_ID_EN_MSK 0x20
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#define MAC_CFG_DESC_TX_1_MAC_ID_POS 6
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#define MAC_CFG_DESC_TX_1_MAC_ID_LEN 2
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#define MAC_CFG_DESC_TX_1_MAC_ID_MSK 0xc0
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#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_POS 15
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#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_LEN 1
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#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_MSK 0x8000
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#define MAC_CFG_DESC_TX_1_DST_INDEX_POS 16
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#define MAC_CFG_DESC_TX_1_DST_INDEX_LEN 4
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#define MAC_CFG_DESC_TX_1_DST_INDEX_MSK 0xF0000
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#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_POS 20
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#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_LEN 1
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#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_MSK 0x100000
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#define MAC_CFG_DESC_TX_1_ACK_POLICY_POS 21
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#define MAC_CFG_DESC_TX_1_ACK_POLICY_LEN 2
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#define MAC_CFG_DESC_TX_1_ACK_POLICY_MSK 0x600000
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#define MAC_CFG_DESC_TX_1_LIFETIME_EN_POS 23
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#define MAC_CFG_DESC_TX_1_LIFETIME_EN_LEN 1
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#define MAC_CFG_DESC_TX_1_LIFETIME_EN_MSK 0x800000
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#define MAC_CFG_DESC_TX_1_MAX_RETRY_POS 24
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#define MAC_CFG_DESC_TX_1_MAX_RETRY_LEN 7
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#define MAC_CFG_DESC_TX_1_MAX_RETRY_MSK 0x7F000000
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#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_POS 31
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#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_LEN 1
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#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_MSK 0x80000000
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/* TX MAC Dword 2 */
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#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_POS 0
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#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_LEN 8
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#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_MSK 0xFF
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#define MAC_CFG_DESC_TX_2_RESERVED_POS 8
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#define MAC_CFG_DESC_TX_2_RESERVED_LEN 10
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#define MAC_CFG_DESC_TX_2_RESERVED_MSK 0x3FF00
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#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_POS 18
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#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_LEN 2
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#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_MSK 0xC0000
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#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_POS 20
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#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_LEN 1
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#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_MSK 0x100000
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#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_POS 21
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#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_LEN 1
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#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_MSK 0x200000
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/* TX MAC Dword 3 */
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#define MAC_CFG_DESC_TX_3_UCODE_CMD_POS 0
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#define MAC_CFG_DESC_TX_3_UCODE_CMD_LEN 32
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#define MAC_CFG_DESC_TX_3_UCODE_CMD_MSK 0xFFFFFFFF
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/* TX DMA Dword 0 */
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#define DMA_CFG_DESC_TX_0_L4_LENGTH_POS 0
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#define DMA_CFG_DESC_TX_0_L4_LENGTH_LEN 8
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#define DMA_CFG_DESC_TX_0_L4_LENGTH_MSK 0xFF
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#define DMA_CFG_DESC_TX_0_CMD_EOP_POS 8
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#define DMA_CFG_DESC_TX_0_CMD_EOP_LEN 1
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#define DMA_CFG_DESC_TX_0_CMD_EOP_MSK 0x100
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#define DMA_CFG_DESC_TX_0_CMD_MARK_WB_POS 9
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#define DMA_CFG_DESC_TX_0_CMD_MARK_WB_LEN 1
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#define DMA_CFG_DESC_TX_0_CMD_MARK_WB_MSK 0x200
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#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS 10
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#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_LEN 1
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#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_MSK 0x400
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#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_POS 11
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#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_LEN 2
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#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_MSK 0x1800
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#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_POS 13
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#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_LEN 1
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#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_MSK 0x2000
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#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_POS 14
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#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_LEN 1
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#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_MSK 0x4000
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#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_POS 15
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#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_LEN 1
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#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_MSK 0x8000
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#define DMA_CFG_DESC_TX_0_QID_POS 16
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#define DMA_CFG_DESC_TX_0_QID_LEN 5
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#define DMA_CFG_DESC_TX_0_QID_MSK 0x1F0000
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#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_POS 21
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#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_LEN 1
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#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_MSK 0x200000
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#define DMA_CFG_DESC_TX_0_L4_TYPE_POS 30
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#define DMA_CFG_DESC_TX_0_L4_TYPE_LEN 2
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#define DMA_CFG_DESC_TX_0_L4_TYPE_MSK 0xC0000000 /* L4 type: 0-UDP, 2-TCP */
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#define DMA_CFG_DESC_TX_OFFLOAD_CFG_MAC_LEN_POS 0
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#define DMA_CFG_DESC_TX_OFFLOAD_CFG_MAC_LEN_LEN 7
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#define DMA_CFG_DESC_TX_OFFLOAD_CFG_MAC_LEN_MSK 0x7F /* MAC hdr len */
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#define DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_POS 7
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#define DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_LEN 1
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#define DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_MSK 0x80 /* 1-IPv4, 0-IPv6 */
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#define TX_DMA_STATUS_DU BIT(0)
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/* Tx descriptor - DMA part
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* [dword 0]
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* bit 0.. 7 : l4_length:8 layer 4 length
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* bit 8 : cmd_eop:1 This descriptor is the last one in the packet
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* bit 9 : reserved
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* bit 10 : cmd_dma_it:1 immediate interrupt
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* bit 11..12 : SBD - Segment Buffer Details
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* 00 - Header Segment
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* 01 - First Data Segment
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* 10 - Medium Data Segment
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* 11 - Last Data Segment
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* bit 13 : TSE - TCP Segmentation Enable
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* bit 14 : IIC - Directs the HW to Insert IPv4 Checksum
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* bit 15 : ITC - Directs the HW to Insert TCP/UDP Checksum
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* bit 16..20 : QID - The target QID that the packet should be stored
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* in the MAC.
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* bit 21 : PO - Pseudo header Offload:
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* 0 - Use the pseudo header value from the TCP checksum field
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* 1- Calculate Pseudo header Checksum
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* bit 22 : NC - No UDP Checksum
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* bit 23..29 : reserved
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* bit 30..31 : L4T - Layer 4 Type: 00 - UDP , 10 - TCP , 10, 11 - Reserved
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* If L4Len equal 0, no L4 at all
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* [dword 1]
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* bit 0..31 : addr_low:32 The payload buffer low address
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* [dword 2]
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* bit 0..15 : addr_high:16 The payload buffer high address
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* bit 16..23 : ip_length:8 The IP header length for the TX IP checksum
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* offload feature
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* bit 24..30 : mac_length:7
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* bit 31 : ip_version:1 1 - IPv4, 0 - IPv6
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* [dword 3]
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* [byte 12] error
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* bit 0 2 : mac_status:3
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* bit 3 7 : reserved:5
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* [byte 13] status
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* bit 0 : DU:1 Descriptor Used
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* bit 1 7 : reserved:7
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* [word 7] length
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*/
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struct vring_tx_dma {
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u32 d0;
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struct wil_ring_dma_addr addr;
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u8 ip_length;
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u8 b11; /* 0..6: mac_length; 7:ip_version */
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u8 error; /* 0..2: err; 3..7: reserved; */
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u8 status; /* 0: used; 1..7; reserved */
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__le16 length;
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} __packed;
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/* TSO type used in dma descriptor d0 bits 11-12 */
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enum {
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wil_tso_type_hdr = 0,
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wil_tso_type_first = 1,
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wil_tso_type_mid = 2,
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wil_tso_type_lst = 3,
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};
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/* Rx descriptor - MAC part
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* [dword 0]
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* bit 0.. 3 : tid:4 The QoS (b3-0) TID Field
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* bit 4.. 6 : cid:3 The Source index that was found during parsing the TA.
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* This field is used to define the source of the packet
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* bit 7 : MAC_id_valid:1, 1 if MAC virtual number is valid.
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* bit 8.. 9 : mid:2 The MAC virtual number
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* bit 10..11 : frame_type:2 : The FC (b3-2) - MPDU Type
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* (management, data, control and extension)
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* bit 12..15 : frame_subtype:4 : The FC (b7-4) - Frame Subtype
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* bit 16..27 : seq_number:12 The received Sequence number field
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* bit 28..31 : extended:4 extended subtype
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* [dword 1]
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* bit 0.. 3 : reserved
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* bit 4.. 5 : key_id:2
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* bit 6 : decrypt_bypass:1
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* bit 7 : security:1 FC (b14)
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* bit 8.. 9 : ds_bits:2 FC (b9-8)
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* bit 10 : a_msdu_present:1 QoS (b7)
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* bit 11 : a_msdu_type:1 QoS (b8)
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* bit 12 : a_mpdu:1 part of AMPDU aggregation
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* bit 13 : broadcast:1
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* bit 14 : mutlicast:1
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* bit 15 : reserved:1
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* bit 16..20 : rx_mac_qid:5 The Queue Identifier that the packet
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* is received from
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* bit 21..24 : mcs:4
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* bit 25..28 : mic_icr:4 this signal tells the DMA to assert an interrupt
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* after it writes the packet
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* bit 29..31 : reserved:3
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* [dword 2]
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* bit 0.. 2 : time_slot:3 The timeslot that the MPDU is received
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* bit 3.. 4 : fc_protocol_ver:1 The FC (b1-0) - Protocol Version
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* bit 5 : fc_order:1 The FC Control (b15) -Order
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* bit 6.. 7 : qos_ack_policy:2 The QoS (b6-5) ack policy Field
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* bit 8 : esop:1 The QoS (b4) ESOP field
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* bit 9 : qos_rdg_more_ppdu:1 The QoS (b9) RDG field
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* bit 10..14 : qos_reserved:5 The QoS (b14-10) Reserved field
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* bit 15 : qos_ac_constraint:1 QoS (b15)
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* bit 16..31 : pn_15_0:16 low 2 bytes of PN
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* [dword 3]
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* bit 0..31 : pn_47_16:32 high 4 bytes of PN
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*/
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struct vring_rx_mac {
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u32 d0;
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u32 d1;
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u16 w4;
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u16 pn_15_0;
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u32 pn_47_16;
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} __packed;
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/* Rx descriptor - DMA part
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* [dword 0]
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* bit 0.. 7 : l4_length:8 layer 4 length. The field is only valid if
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* L4I bit is set
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* bit 8 : cmd_eop:1 set to 1
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* bit 9 : cmd_rt:1 set to 1
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* bit 10 : cmd_dma_it:1 immediate interrupt
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* bit 11..15 : reserved:5
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* bit 16..29 : phy_info_length:14 It is valid when the PII is set.
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* When the FFM bit is set bits 29-27 are used for for
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* Flex Filter Match. Matching Index to one of the L2
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* EtherType Flex Filter
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* bit 30..31 : l4_type:2 valid if the L4I bit is set in the status field
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* 00 - UDP, 01 - TCP, 10, 11 - reserved
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* [dword 1]
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* bit 0..31 : addr_low:32 The payload buffer low address
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* [dword 2]
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* bit 0..15 : addr_high:16 The payload buffer high address
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* bit 16..23 : ip_length:8 The filed is valid only if the L3I bit is set
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* bit 24..30 : mac_length:7
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* bit 31 : ip_version:1 1 - IPv4, 0 - IPv6
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* [dword 3]
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* [byte 12] error
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* bit 0 : FCS:1
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* bit 1 : MIC:1
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* bit 2 : Key miss:1
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* bit 3 : Replay:1
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* bit 4 : L3:1 IPv4 checksum
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* bit 5 : L4:1 TCP/UDP checksum
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* bit 6 7 : reserved:2
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* [byte 13] status
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* bit 0 : DU:1 Descriptor Used
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* bit 1 : EOP:1 The descriptor indicates the End of Packet
|
|
* bit 2 : error:1
|
|
* bit 3 : MI:1 MAC Interrupt is asserted (according to parser decision)
|
|
* bit 4 : L3I:1 L3 identified and checksum calculated
|
|
* bit 5 : L4I:1 L4 identified and checksum calculated
|
|
* bit 6 : PII:1 PHY Info Included in the packet
|
|
* bit 7 : FFM:1 EtherType Flex Filter Match
|
|
* [word 7] length
|
|
*/
|
|
|
|
#define RX_DMA_D0_CMD_DMA_EOP BIT(8)
|
|
#define RX_DMA_D0_CMD_DMA_RT BIT(9) /* always 1 */
|
|
#define RX_DMA_D0_CMD_DMA_IT BIT(10) /* interrupt */
|
|
#define RX_MAC_D0_MAC_ID_VALID BIT(7)
|
|
|
|
/* Error field */
|
|
#define RX_DMA_ERROR_FCS BIT(0)
|
|
#define RX_DMA_ERROR_MIC BIT(1)
|
|
#define RX_DMA_ERROR_KEY BIT(2) /* Key missing */
|
|
#define RX_DMA_ERROR_REPLAY BIT(3)
|
|
#define RX_DMA_ERROR_L3_ERR BIT(4)
|
|
#define RX_DMA_ERROR_L4_ERR BIT(5)
|
|
|
|
/* Status field */
|
|
#define RX_DMA_STATUS_DU BIT(0)
|
|
#define RX_DMA_STATUS_EOP BIT(1)
|
|
#define RX_DMA_STATUS_ERROR BIT(2)
|
|
#define RX_DMA_STATUS_MI BIT(3) /* MAC Interrupt is asserted */
|
|
#define RX_DMA_STATUS_L3I BIT(4)
|
|
#define RX_DMA_STATUS_L4I BIT(5)
|
|
#define RX_DMA_STATUS_PHY_INFO BIT(6)
|
|
#define RX_DMA_STATUS_FFM BIT(7) /* EtherType Flex Filter Match */
|
|
|
|
struct vring_rx_dma {
|
|
u32 d0;
|
|
struct wil_ring_dma_addr addr;
|
|
u8 ip_length;
|
|
u8 b11;
|
|
u8 error;
|
|
u8 status;
|
|
__le16 length;
|
|
} __packed;
|
|
|
|
struct vring_tx_desc {
|
|
struct vring_tx_mac mac;
|
|
struct vring_tx_dma dma;
|
|
} __packed;
|
|
|
|
union wil_tx_desc {
|
|
struct vring_tx_desc legacy;
|
|
struct wil_tx_enhanced_desc enhanced;
|
|
} __packed;
|
|
|
|
struct vring_rx_desc {
|
|
struct vring_rx_mac mac;
|
|
struct vring_rx_dma dma;
|
|
} __packed;
|
|
|
|
union wil_rx_desc {
|
|
struct vring_rx_desc legacy;
|
|
struct wil_rx_enhanced_desc enhanced;
|
|
} __packed;
|
|
|
|
union wil_ring_desc {
|
|
union wil_tx_desc tx;
|
|
union wil_rx_desc rx;
|
|
} __packed;
|
|
|
|
static inline int wil_rxdesc_tid(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d0, 0, 3);
|
|
}
|
|
|
|
static inline int wil_rxdesc_cid(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d0, 4, 6);
|
|
}
|
|
|
|
static inline int wil_rxdesc_mid(struct vring_rx_desc *d)
|
|
{
|
|
return (d->mac.d0 & RX_MAC_D0_MAC_ID_VALID) ?
|
|
WIL_GET_BITS(d->mac.d0, 8, 9) : 0;
|
|
}
|
|
|
|
static inline int wil_rxdesc_ftype(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d0, 10, 11);
|
|
}
|
|
|
|
static inline int wil_rxdesc_subtype(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d0, 12, 15);
|
|
}
|
|
|
|
/* 1-st byte (with frame type/subtype) of FC field */
|
|
static inline u8 wil_rxdesc_fc1(struct vring_rx_desc *d)
|
|
{
|
|
return (u8)(WIL_GET_BITS(d->mac.d0, 10, 15) << 2);
|
|
}
|
|
|
|
static inline int wil_rxdesc_seq(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d0, 16, 27);
|
|
}
|
|
|
|
static inline int wil_rxdesc_ext_subtype(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d0, 28, 31);
|
|
}
|
|
|
|
static inline int wil_rxdesc_retry(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d0, 31, 31);
|
|
}
|
|
|
|
static inline int wil_rxdesc_key_id(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d1, 4, 5);
|
|
}
|
|
|
|
static inline int wil_rxdesc_security(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d1, 7, 7);
|
|
}
|
|
|
|
static inline int wil_rxdesc_ds_bits(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d1, 8, 9);
|
|
}
|
|
|
|
static inline int wil_rxdesc_mcs(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d1, 21, 24);
|
|
}
|
|
|
|
static inline int wil_rxdesc_mcast(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->mac.d1, 13, 14);
|
|
}
|
|
|
|
static inline int wil_rxdesc_phy_length(struct vring_rx_desc *d)
|
|
{
|
|
return WIL_GET_BITS(d->dma.d0, 16, 29);
|
|
}
|
|
|
|
static inline struct vring_rx_desc *wil_skb_rxdesc(struct sk_buff *skb)
|
|
{
|
|
return (void *)skb->cb;
|
|
}
|
|
|
|
static inline int wil_ring_is_empty(struct wil_ring *ring)
|
|
{
|
|
return ring->swhead == ring->swtail;
|
|
}
|
|
|
|
static inline u32 wil_ring_next_tail(struct wil_ring *ring)
|
|
{
|
|
return (ring->swtail + 1) % ring->size;
|
|
}
|
|
|
|
static inline void wil_ring_advance_head(struct wil_ring *ring, int n)
|
|
{
|
|
ring->swhead = (ring->swhead + n) % ring->size;
|
|
}
|
|
|
|
static inline int wil_ring_is_full(struct wil_ring *ring)
|
|
{
|
|
return wil_ring_next_tail(ring) == ring->swhead;
|
|
}
|
|
|
|
static inline bool wil_need_txstat(struct sk_buff *skb)
|
|
{
|
|
struct ethhdr *eth = (void *)skb->data;
|
|
|
|
return is_unicast_ether_addr(eth->h_dest) && skb->sk &&
|
|
(skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS);
|
|
}
|
|
|
|
static inline void wil_consume_skb(struct sk_buff *skb, bool acked)
|
|
{
|
|
if (unlikely(wil_need_txstat(skb)))
|
|
skb_complete_wifi_ack(skb, acked);
|
|
else
|
|
acked ? dev_consume_skb_any(skb) : dev_kfree_skb_any(skb);
|
|
}
|
|
|
|
/* Used space in Tx ring */
|
|
static inline int wil_ring_used_tx(struct wil_ring *ring)
|
|
{
|
|
u32 swhead = ring->swhead;
|
|
u32 swtail = ring->swtail;
|
|
|
|
return (ring->size + swhead - swtail) % ring->size;
|
|
}
|
|
|
|
/* Available space in Tx ring */
|
|
static inline int wil_ring_avail_tx(struct wil_ring *ring)
|
|
{
|
|
return ring->size - wil_ring_used_tx(ring) - 1;
|
|
}
|
|
|
|
static inline int wil_get_min_tx_ring_id(struct wil6210_priv *wil)
|
|
{
|
|
/* In Enhanced DMA ring 0 is reserved for RX */
|
|
return wil->use_enhanced_dma_hw ? 1 : 0;
|
|
}
|
|
|
|
/* similar to ieee80211_ version, but FC contain only 1-st byte */
|
|
static inline int wil_is_back_req(u8 fc)
|
|
{
|
|
return (fc & (IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
|
|
(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
|
|
}
|
|
|
|
/* wil_val_in_range - check if value in [min,max) */
|
|
static inline bool wil_val_in_range(int val, int min, int max)
|
|
{
|
|
return val >= min && val < max;
|
|
}
|
|
|
|
void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev);
|
|
void wil_rx_reorder(struct wil6210_priv *wil, struct sk_buff *skb);
|
|
void wil_rx_bar(struct wil6210_priv *wil, struct wil6210_vif *vif,
|
|
u8 cid, u8 tid, u16 seq);
|
|
struct wil_tid_ampdu_rx *wil_tid_ampdu_rx_alloc(struct wil6210_priv *wil,
|
|
int size, u16 ssn);
|
|
void wil_tid_ampdu_rx_free(struct wil6210_priv *wil,
|
|
struct wil_tid_ampdu_rx *r);
|
|
void wil_tx_data_init(struct wil_ring_tx_data *txdata);
|
|
void wil_init_txrx_ops_legacy_dma(struct wil6210_priv *wil);
|
|
void wil_tx_latency_calc(struct wil6210_priv *wil, struct sk_buff *skb,
|
|
struct wil_sta_info *sta);
|
|
|
|
#endif /* WIL6210_TXRX_H */
|