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1662 lines
44 KiB
1662 lines
44 KiB
// SPDX-License-Identifier: ISC |
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/* |
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* Copyright (c) 2014 Broadcom Corporation |
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*/ |
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/******************************************************************************* |
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* Communicates with the dongle by using dcmd codes. |
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* For certain dcmd codes, the dongle interprets string data from the host. |
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******************************************************************************/ |
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#include <linux/types.h> |
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#include <linux/netdevice.h> |
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#include <linux/etherdevice.h> |
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#include <brcmu_utils.h> |
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#include <brcmu_wifi.h> |
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#include "core.h" |
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#include "debug.h" |
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#include "proto.h" |
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#include "msgbuf.h" |
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#include "commonring.h" |
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#include "flowring.h" |
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#include "bus.h" |
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#include "tracepoint.h" |
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#define MSGBUF_IOCTL_RESP_TIMEOUT msecs_to_jiffies(2000) |
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#define MSGBUF_TYPE_GEN_STATUS 0x1 |
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#define MSGBUF_TYPE_RING_STATUS 0x2 |
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#define MSGBUF_TYPE_FLOW_RING_CREATE 0x3 |
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#define MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT 0x4 |
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#define MSGBUF_TYPE_FLOW_RING_DELETE 0x5 |
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#define MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT 0x6 |
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#define MSGBUF_TYPE_FLOW_RING_FLUSH 0x7 |
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#define MSGBUF_TYPE_FLOW_RING_FLUSH_CMPLT 0x8 |
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#define MSGBUF_TYPE_IOCTLPTR_REQ 0x9 |
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#define MSGBUF_TYPE_IOCTLPTR_REQ_ACK 0xA |
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#define MSGBUF_TYPE_IOCTLRESP_BUF_POST 0xB |
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#define MSGBUF_TYPE_IOCTL_CMPLT 0xC |
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#define MSGBUF_TYPE_EVENT_BUF_POST 0xD |
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#define MSGBUF_TYPE_WL_EVENT 0xE |
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#define MSGBUF_TYPE_TX_POST 0xF |
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#define MSGBUF_TYPE_TX_STATUS 0x10 |
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#define MSGBUF_TYPE_RXBUF_POST 0x11 |
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#define MSGBUF_TYPE_RX_CMPLT 0x12 |
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#define MSGBUF_TYPE_LPBK_DMAXFER 0x13 |
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#define MSGBUF_TYPE_LPBK_DMAXFER_CMPLT 0x14 |
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#define NR_TX_PKTIDS 2048 |
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#define NR_RX_PKTIDS 1024 |
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#define BRCMF_IOCTL_REQ_PKTID 0xFFFE |
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#define BRCMF_MSGBUF_MAX_PKT_SIZE 2048 |
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#define BRCMF_MSGBUF_MAX_CTL_PKT_SIZE 8192 |
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#define BRCMF_MSGBUF_RXBUFPOST_THRESHOLD 32 |
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#define BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST 8 |
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#define BRCMF_MSGBUF_MAX_EVENTBUF_POST 8 |
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#define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3 0x01 |
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#define BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_11 0x02 |
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#define BRCMF_MSGBUF_PKT_FLAGS_FRAME_MASK 0x07 |
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#define BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT 5 |
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#define BRCMF_MSGBUF_TX_FLUSH_CNT1 32 |
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#define BRCMF_MSGBUF_TX_FLUSH_CNT2 96 |
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#define BRCMF_MSGBUF_DELAY_TXWORKER_THRS 96 |
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#define BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS 32 |
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#define BRCMF_MSGBUF_UPDATE_RX_PTR_THRS 48 |
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struct msgbuf_common_hdr { |
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u8 msgtype; |
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u8 ifidx; |
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u8 flags; |
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u8 rsvd0; |
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__le32 request_id; |
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}; |
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struct msgbuf_ioctl_req_hdr { |
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struct msgbuf_common_hdr msg; |
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__le32 cmd; |
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__le16 trans_id; |
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__le16 input_buf_len; |
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__le16 output_buf_len; |
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__le16 rsvd0[3]; |
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struct msgbuf_buf_addr req_buf_addr; |
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__le32 rsvd1[2]; |
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}; |
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struct msgbuf_tx_msghdr { |
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struct msgbuf_common_hdr msg; |
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u8 txhdr[ETH_HLEN]; |
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u8 flags; |
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u8 seg_cnt; |
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struct msgbuf_buf_addr metadata_buf_addr; |
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struct msgbuf_buf_addr data_buf_addr; |
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__le16 metadata_buf_len; |
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__le16 data_len; |
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__le32 rsvd0; |
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}; |
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struct msgbuf_rx_bufpost { |
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struct msgbuf_common_hdr msg; |
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__le16 metadata_buf_len; |
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__le16 data_buf_len; |
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__le32 rsvd0; |
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struct msgbuf_buf_addr metadata_buf_addr; |
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struct msgbuf_buf_addr data_buf_addr; |
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}; |
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struct msgbuf_rx_ioctl_resp_or_event { |
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struct msgbuf_common_hdr msg; |
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__le16 host_buf_len; |
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__le16 rsvd0[3]; |
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struct msgbuf_buf_addr host_buf_addr; |
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__le32 rsvd1[4]; |
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}; |
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struct msgbuf_completion_hdr { |
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__le16 status; |
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__le16 flow_ring_id; |
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}; |
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/* Data struct for the MSGBUF_TYPE_GEN_STATUS */ |
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struct msgbuf_gen_status { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le16 write_idx; |
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__le32 rsvd0[3]; |
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}; |
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/* Data struct for the MSGBUF_TYPE_RING_STATUS */ |
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struct msgbuf_ring_status { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le16 write_idx; |
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__le16 rsvd0[5]; |
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}; |
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struct msgbuf_rx_event { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le16 event_data_len; |
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__le16 seqnum; |
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__le16 rsvd0[4]; |
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}; |
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struct msgbuf_ioctl_resp_hdr { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le16 resp_len; |
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__le16 trans_id; |
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__le32 cmd; |
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__le32 rsvd0; |
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}; |
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struct msgbuf_tx_status { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le16 metadata_len; |
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__le16 tx_status; |
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}; |
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struct msgbuf_rx_complete { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le16 metadata_len; |
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__le16 data_len; |
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__le16 data_offset; |
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__le16 flags; |
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__le32 rx_status_0; |
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__le32 rx_status_1; |
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__le32 rsvd0; |
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}; |
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struct msgbuf_tx_flowring_create_req { |
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struct msgbuf_common_hdr msg; |
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u8 da[ETH_ALEN]; |
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u8 sa[ETH_ALEN]; |
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u8 tid; |
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u8 if_flags; |
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__le16 flow_ring_id; |
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u8 tc; |
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u8 priority; |
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__le16 int_vector; |
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__le16 max_items; |
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__le16 len_item; |
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struct msgbuf_buf_addr flow_ring_addr; |
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}; |
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struct msgbuf_tx_flowring_delete_req { |
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struct msgbuf_common_hdr msg; |
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__le16 flow_ring_id; |
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__le16 reason; |
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__le32 rsvd0[7]; |
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}; |
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struct msgbuf_flowring_create_resp { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le32 rsvd0[3]; |
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}; |
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struct msgbuf_flowring_delete_resp { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le32 rsvd0[3]; |
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}; |
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struct msgbuf_flowring_flush_resp { |
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struct msgbuf_common_hdr msg; |
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struct msgbuf_completion_hdr compl_hdr; |
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__le32 rsvd0[3]; |
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}; |
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struct brcmf_msgbuf_work_item { |
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struct list_head queue; |
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u32 flowid; |
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int ifidx; |
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u8 sa[ETH_ALEN]; |
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u8 da[ETH_ALEN]; |
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}; |
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struct brcmf_msgbuf { |
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struct brcmf_pub *drvr; |
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struct brcmf_commonring **commonrings; |
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struct brcmf_commonring **flowrings; |
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dma_addr_t *flowring_dma_handle; |
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u16 max_flowrings; |
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u16 max_submissionrings; |
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u16 max_completionrings; |
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u16 rx_dataoffset; |
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u32 max_rxbufpost; |
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u16 rx_metadata_offset; |
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u32 rxbufpost; |
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u32 max_ioctlrespbuf; |
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u32 cur_ioctlrespbuf; |
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u32 max_eventbuf; |
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u32 cur_eventbuf; |
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void *ioctbuf; |
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dma_addr_t ioctbuf_handle; |
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u32 ioctbuf_phys_hi; |
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u32 ioctbuf_phys_lo; |
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int ioctl_resp_status; |
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u32 ioctl_resp_ret_len; |
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u32 ioctl_resp_pktid; |
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u16 data_seq_no; |
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u16 ioctl_seq_no; |
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u32 reqid; |
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wait_queue_head_t ioctl_resp_wait; |
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bool ctl_completed; |
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struct brcmf_msgbuf_pktids *tx_pktids; |
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struct brcmf_msgbuf_pktids *rx_pktids; |
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struct brcmf_flowring *flow; |
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struct workqueue_struct *txflow_wq; |
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struct work_struct txflow_work; |
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unsigned long *flow_map; |
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unsigned long *txstatus_done_map; |
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struct work_struct flowring_work; |
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spinlock_t flowring_work_lock; |
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struct list_head work_queue; |
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}; |
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struct brcmf_msgbuf_pktid { |
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atomic_t allocated; |
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u16 data_offset; |
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struct sk_buff *skb; |
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dma_addr_t physaddr; |
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}; |
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struct brcmf_msgbuf_pktids { |
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u32 array_size; |
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u32 last_allocated_idx; |
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enum dma_data_direction direction; |
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struct brcmf_msgbuf_pktid *array; |
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}; |
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static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf); |
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static struct brcmf_msgbuf_pktids * |
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brcmf_msgbuf_init_pktids(u32 nr_array_entries, |
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enum dma_data_direction direction) |
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{ |
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struct brcmf_msgbuf_pktid *array; |
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struct brcmf_msgbuf_pktids *pktids; |
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array = kcalloc(nr_array_entries, sizeof(*array), GFP_KERNEL); |
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if (!array) |
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return NULL; |
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pktids = kzalloc(sizeof(*pktids), GFP_KERNEL); |
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if (!pktids) { |
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kfree(array); |
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return NULL; |
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} |
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pktids->array = array; |
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pktids->array_size = nr_array_entries; |
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return pktids; |
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} |
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static int |
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brcmf_msgbuf_alloc_pktid(struct device *dev, |
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struct brcmf_msgbuf_pktids *pktids, |
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struct sk_buff *skb, u16 data_offset, |
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dma_addr_t *physaddr, u32 *idx) |
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{ |
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struct brcmf_msgbuf_pktid *array; |
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u32 count; |
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array = pktids->array; |
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*physaddr = dma_map_single(dev, skb->data + data_offset, |
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skb->len - data_offset, pktids->direction); |
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if (dma_mapping_error(dev, *physaddr)) { |
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brcmf_err("dma_map_single failed !!\n"); |
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return -ENOMEM; |
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} |
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*idx = pktids->last_allocated_idx; |
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count = 0; |
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do { |
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(*idx)++; |
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if (*idx == pktids->array_size) |
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*idx = 0; |
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if (array[*idx].allocated.counter == 0) |
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if (atomic_cmpxchg(&array[*idx].allocated, 0, 1) == 0) |
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break; |
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count++; |
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} while (count < pktids->array_size); |
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if (count == pktids->array_size) |
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return -ENOMEM; |
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array[*idx].data_offset = data_offset; |
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array[*idx].physaddr = *physaddr; |
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array[*idx].skb = skb; |
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pktids->last_allocated_idx = *idx; |
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return 0; |
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} |
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static struct sk_buff * |
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brcmf_msgbuf_get_pktid(struct device *dev, struct brcmf_msgbuf_pktids *pktids, |
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u32 idx) |
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{ |
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struct brcmf_msgbuf_pktid *pktid; |
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struct sk_buff *skb; |
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if (idx >= pktids->array_size) { |
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brcmf_err("Invalid packet id %d (max %d)\n", idx, |
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pktids->array_size); |
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return NULL; |
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} |
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if (pktids->array[idx].allocated.counter) { |
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pktid = &pktids->array[idx]; |
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dma_unmap_single(dev, pktid->physaddr, |
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pktid->skb->len - pktid->data_offset, |
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pktids->direction); |
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skb = pktid->skb; |
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pktid->allocated.counter = 0; |
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return skb; |
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} else { |
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brcmf_err("Invalid packet id %d (not in use)\n", idx); |
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} |
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return NULL; |
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} |
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static void |
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brcmf_msgbuf_release_array(struct device *dev, |
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struct brcmf_msgbuf_pktids *pktids) |
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{ |
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struct brcmf_msgbuf_pktid *array; |
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struct brcmf_msgbuf_pktid *pktid; |
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u32 count; |
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array = pktids->array; |
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count = 0; |
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do { |
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if (array[count].allocated.counter) { |
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pktid = &array[count]; |
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dma_unmap_single(dev, pktid->physaddr, |
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pktid->skb->len - pktid->data_offset, |
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pktids->direction); |
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brcmu_pkt_buf_free_skb(pktid->skb); |
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} |
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count++; |
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} while (count < pktids->array_size); |
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kfree(array); |
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kfree(pktids); |
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} |
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static void brcmf_msgbuf_release_pktids(struct brcmf_msgbuf *msgbuf) |
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{ |
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if (msgbuf->rx_pktids) |
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brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, |
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msgbuf->rx_pktids); |
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if (msgbuf->tx_pktids) |
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brcmf_msgbuf_release_array(msgbuf->drvr->bus_if->dev, |
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msgbuf->tx_pktids); |
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} |
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static int brcmf_msgbuf_tx_ioctl(struct brcmf_pub *drvr, int ifidx, |
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uint cmd, void *buf, uint len) |
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{ |
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struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
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struct brcmf_commonring *commonring; |
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struct msgbuf_ioctl_req_hdr *request; |
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u16 buf_len; |
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void *ret_ptr; |
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int err; |
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commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
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brcmf_commonring_lock(commonring); |
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ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
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if (!ret_ptr) { |
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bphy_err(drvr, "Failed to reserve space in commonring\n"); |
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brcmf_commonring_unlock(commonring); |
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return -ENOMEM; |
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} |
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msgbuf->reqid++; |
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request = (struct msgbuf_ioctl_req_hdr *)ret_ptr; |
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request->msg.msgtype = MSGBUF_TYPE_IOCTLPTR_REQ; |
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request->msg.ifidx = (u8)ifidx; |
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request->msg.flags = 0; |
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request->msg.request_id = cpu_to_le32(BRCMF_IOCTL_REQ_PKTID); |
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request->cmd = cpu_to_le32(cmd); |
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request->output_buf_len = cpu_to_le16(len); |
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request->trans_id = cpu_to_le16(msgbuf->reqid); |
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buf_len = min_t(u16, len, BRCMF_TX_IOCTL_MAX_MSG_SIZE); |
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request->input_buf_len = cpu_to_le16(buf_len); |
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request->req_buf_addr.high_addr = cpu_to_le32(msgbuf->ioctbuf_phys_hi); |
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request->req_buf_addr.low_addr = cpu_to_le32(msgbuf->ioctbuf_phys_lo); |
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if (buf) |
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memcpy(msgbuf->ioctbuf, buf, buf_len); |
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else |
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memset(msgbuf->ioctbuf, 0, buf_len); |
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err = brcmf_commonring_write_complete(commonring); |
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brcmf_commonring_unlock(commonring); |
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return err; |
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} |
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static int brcmf_msgbuf_ioctl_resp_wait(struct brcmf_msgbuf *msgbuf) |
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{ |
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return wait_event_timeout(msgbuf->ioctl_resp_wait, |
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msgbuf->ctl_completed, |
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MSGBUF_IOCTL_RESP_TIMEOUT); |
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} |
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static void brcmf_msgbuf_ioctl_resp_wake(struct brcmf_msgbuf *msgbuf) |
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{ |
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msgbuf->ctl_completed = true; |
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wake_up(&msgbuf->ioctl_resp_wait); |
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} |
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static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx, |
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uint cmd, void *buf, uint len, int *fwerr) |
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{ |
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struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
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struct sk_buff *skb = NULL; |
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int timeout; |
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int err; |
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brcmf_dbg(MSGBUF, "ifidx=%d, cmd=%d, len=%d\n", ifidx, cmd, len); |
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*fwerr = 0; |
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msgbuf->ctl_completed = false; |
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err = brcmf_msgbuf_tx_ioctl(drvr, ifidx, cmd, buf, len); |
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if (err) |
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return err; |
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timeout = brcmf_msgbuf_ioctl_resp_wait(msgbuf); |
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if (!timeout) { |
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bphy_err(drvr, "Timeout on response for query command\n"); |
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return -EIO; |
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} |
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skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
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msgbuf->rx_pktids, |
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msgbuf->ioctl_resp_pktid); |
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if (msgbuf->ioctl_resp_ret_len != 0) { |
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if (!skb) |
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return -EBADF; |
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memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ? |
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len : msgbuf->ioctl_resp_ret_len); |
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} |
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brcmu_pkt_buf_free_skb(skb); |
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*fwerr = msgbuf->ioctl_resp_status; |
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return 0; |
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} |
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static int brcmf_msgbuf_set_dcmd(struct brcmf_pub *drvr, int ifidx, |
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uint cmd, void *buf, uint len, int *fwerr) |
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{ |
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return brcmf_msgbuf_query_dcmd(drvr, ifidx, cmd, buf, len, fwerr); |
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} |
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static int brcmf_msgbuf_hdrpull(struct brcmf_pub *drvr, bool do_fws, |
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struct sk_buff *skb, struct brcmf_if **ifp) |
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{ |
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return -ENODEV; |
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} |
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static void brcmf_msgbuf_rxreorder(struct brcmf_if *ifp, struct sk_buff *skb, |
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bool inirq) |
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{ |
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} |
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static void |
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brcmf_msgbuf_remove_flowring(struct brcmf_msgbuf *msgbuf, u16 flowid) |
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{ |
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u32 dma_sz; |
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void *dma_buf; |
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brcmf_dbg(MSGBUF, "Removing flowring %d\n", flowid); |
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dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; |
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dma_buf = msgbuf->flowrings[flowid]->buf_addr; |
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dma_free_coherent(msgbuf->drvr->bus_if->dev, dma_sz, dma_buf, |
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msgbuf->flowring_dma_handle[flowid]); |
|
|
|
brcmf_flowring_delete(msgbuf->flow, flowid); |
|
} |
|
|
|
|
|
static struct brcmf_msgbuf_work_item * |
|
brcmf_msgbuf_dequeue_work(struct brcmf_msgbuf *msgbuf) |
|
{ |
|
struct brcmf_msgbuf_work_item *work = NULL; |
|
ulong flags; |
|
|
|
spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); |
|
if (!list_empty(&msgbuf->work_queue)) { |
|
work = list_first_entry(&msgbuf->work_queue, |
|
struct brcmf_msgbuf_work_item, queue); |
|
list_del(&work->queue); |
|
} |
|
spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); |
|
|
|
return work; |
|
} |
|
|
|
|
|
static u32 |
|
brcmf_msgbuf_flowring_create_worker(struct brcmf_msgbuf *msgbuf, |
|
struct brcmf_msgbuf_work_item *work) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct msgbuf_tx_flowring_create_req *create; |
|
struct brcmf_commonring *commonring; |
|
void *ret_ptr; |
|
u32 flowid; |
|
void *dma_buf; |
|
u32 dma_sz; |
|
u64 address; |
|
int err; |
|
|
|
flowid = work->flowid; |
|
dma_sz = BRCMF_H2D_TXFLOWRING_MAX_ITEM * BRCMF_H2D_TXFLOWRING_ITEMSIZE; |
|
dma_buf = dma_alloc_coherent(msgbuf->drvr->bus_if->dev, dma_sz, |
|
&msgbuf->flowring_dma_handle[flowid], |
|
GFP_KERNEL); |
|
if (!dma_buf) { |
|
bphy_err(drvr, "dma_alloc_coherent failed\n"); |
|
brcmf_flowring_delete(msgbuf->flow, flowid); |
|
return BRCMF_FLOWRING_INVALID_ID; |
|
} |
|
|
|
brcmf_commonring_config(msgbuf->flowrings[flowid], |
|
BRCMF_H2D_TXFLOWRING_MAX_ITEM, |
|
BRCMF_H2D_TXFLOWRING_ITEMSIZE, dma_buf); |
|
|
|
commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
|
brcmf_commonring_lock(commonring); |
|
ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
|
if (!ret_ptr) { |
|
bphy_err(drvr, "Failed to reserve space in commonring\n"); |
|
brcmf_commonring_unlock(commonring); |
|
brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
|
return BRCMF_FLOWRING_INVALID_ID; |
|
} |
|
|
|
create = (struct msgbuf_tx_flowring_create_req *)ret_ptr; |
|
create->msg.msgtype = MSGBUF_TYPE_FLOW_RING_CREATE; |
|
create->msg.ifidx = work->ifidx; |
|
create->msg.request_id = 0; |
|
create->tid = brcmf_flowring_tid(msgbuf->flow, flowid); |
|
create->flow_ring_id = cpu_to_le16(flowid + |
|
BRCMF_H2D_MSGRING_FLOWRING_IDSTART); |
|
memcpy(create->sa, work->sa, ETH_ALEN); |
|
memcpy(create->da, work->da, ETH_ALEN); |
|
address = (u64)msgbuf->flowring_dma_handle[flowid]; |
|
create->flow_ring_addr.high_addr = cpu_to_le32(address >> 32); |
|
create->flow_ring_addr.low_addr = cpu_to_le32(address & 0xffffffff); |
|
create->max_items = cpu_to_le16(BRCMF_H2D_TXFLOWRING_MAX_ITEM); |
|
create->len_item = cpu_to_le16(BRCMF_H2D_TXFLOWRING_ITEMSIZE); |
|
|
|
brcmf_dbg(MSGBUF, "Send Flow Create Req flow ID %d for peer %pM prio %d ifindex %d\n", |
|
flowid, work->da, create->tid, work->ifidx); |
|
|
|
err = brcmf_commonring_write_complete(commonring); |
|
brcmf_commonring_unlock(commonring); |
|
if (err) { |
|
bphy_err(drvr, "Failed to write commonring\n"); |
|
brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
|
return BRCMF_FLOWRING_INVALID_ID; |
|
} |
|
|
|
return flowid; |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_flowring_worker(struct work_struct *work) |
|
{ |
|
struct brcmf_msgbuf *msgbuf; |
|
struct brcmf_msgbuf_work_item *create; |
|
|
|
msgbuf = container_of(work, struct brcmf_msgbuf, flowring_work); |
|
|
|
while ((create = brcmf_msgbuf_dequeue_work(msgbuf))) { |
|
brcmf_msgbuf_flowring_create_worker(msgbuf, create); |
|
kfree(create); |
|
} |
|
} |
|
|
|
|
|
static u32 brcmf_msgbuf_flowring_create(struct brcmf_msgbuf *msgbuf, int ifidx, |
|
struct sk_buff *skb) |
|
{ |
|
struct brcmf_msgbuf_work_item *create; |
|
struct ethhdr *eh = (struct ethhdr *)(skb->data); |
|
u32 flowid; |
|
ulong flags; |
|
|
|
create = kzalloc(sizeof(*create), GFP_ATOMIC); |
|
if (create == NULL) |
|
return BRCMF_FLOWRING_INVALID_ID; |
|
|
|
flowid = brcmf_flowring_create(msgbuf->flow, eh->h_dest, |
|
skb->priority, ifidx); |
|
if (flowid == BRCMF_FLOWRING_INVALID_ID) { |
|
kfree(create); |
|
return flowid; |
|
} |
|
|
|
create->flowid = flowid; |
|
create->ifidx = ifidx; |
|
memcpy(create->sa, eh->h_source, ETH_ALEN); |
|
memcpy(create->da, eh->h_dest, ETH_ALEN); |
|
|
|
spin_lock_irqsave(&msgbuf->flowring_work_lock, flags); |
|
list_add_tail(&create->queue, &msgbuf->work_queue); |
|
spin_unlock_irqrestore(&msgbuf->flowring_work_lock, flags); |
|
schedule_work(&msgbuf->flowring_work); |
|
|
|
return flowid; |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_txflow(struct brcmf_msgbuf *msgbuf, u16 flowid) |
|
{ |
|
struct brcmf_flowring *flow = msgbuf->flow; |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct brcmf_commonring *commonring; |
|
void *ret_ptr; |
|
u32 count; |
|
struct sk_buff *skb; |
|
dma_addr_t physaddr; |
|
u32 pktid; |
|
struct msgbuf_tx_msghdr *tx_msghdr; |
|
u64 address; |
|
|
|
commonring = msgbuf->flowrings[flowid]; |
|
if (!brcmf_commonring_write_available(commonring)) |
|
return; |
|
|
|
brcmf_commonring_lock(commonring); |
|
|
|
count = BRCMF_MSGBUF_TX_FLUSH_CNT2 - BRCMF_MSGBUF_TX_FLUSH_CNT1; |
|
while (brcmf_flowring_qlen(flow, flowid)) { |
|
skb = brcmf_flowring_dequeue(flow, flowid); |
|
if (skb == NULL) { |
|
bphy_err(drvr, "No SKB, but qlen %d\n", |
|
brcmf_flowring_qlen(flow, flowid)); |
|
break; |
|
} |
|
skb_orphan(skb); |
|
if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, |
|
msgbuf->tx_pktids, skb, ETH_HLEN, |
|
&physaddr, &pktid)) { |
|
brcmf_flowring_reinsert(flow, flowid, skb); |
|
bphy_err(drvr, "No PKTID available !!\n"); |
|
break; |
|
} |
|
ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
|
if (!ret_ptr) { |
|
brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
|
msgbuf->tx_pktids, pktid); |
|
brcmf_flowring_reinsert(flow, flowid, skb); |
|
break; |
|
} |
|
count++; |
|
|
|
tx_msghdr = (struct msgbuf_tx_msghdr *)ret_ptr; |
|
|
|
tx_msghdr->msg.msgtype = MSGBUF_TYPE_TX_POST; |
|
tx_msghdr->msg.request_id = cpu_to_le32(pktid + 1); |
|
tx_msghdr->msg.ifidx = brcmf_flowring_ifidx_get(flow, flowid); |
|
tx_msghdr->flags = BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_3; |
|
tx_msghdr->flags |= (skb->priority & 0x07) << |
|
BRCMF_MSGBUF_PKT_FLAGS_PRIO_SHIFT; |
|
tx_msghdr->seg_cnt = 1; |
|
memcpy(tx_msghdr->txhdr, skb->data, ETH_HLEN); |
|
tx_msghdr->data_len = cpu_to_le16(skb->len - ETH_HLEN); |
|
address = (u64)physaddr; |
|
tx_msghdr->data_buf_addr.high_addr = cpu_to_le32(address >> 32); |
|
tx_msghdr->data_buf_addr.low_addr = |
|
cpu_to_le32(address & 0xffffffff); |
|
tx_msghdr->metadata_buf_len = 0; |
|
tx_msghdr->metadata_buf_addr.high_addr = 0; |
|
tx_msghdr->metadata_buf_addr.low_addr = 0; |
|
atomic_inc(&commonring->outstanding_tx); |
|
if (count >= BRCMF_MSGBUF_TX_FLUSH_CNT2) { |
|
brcmf_commonring_write_complete(commonring); |
|
count = 0; |
|
} |
|
} |
|
if (count) |
|
brcmf_commonring_write_complete(commonring); |
|
brcmf_commonring_unlock(commonring); |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_txflow_worker(struct work_struct *worker) |
|
{ |
|
struct brcmf_msgbuf *msgbuf; |
|
u32 flowid; |
|
|
|
msgbuf = container_of(worker, struct brcmf_msgbuf, txflow_work); |
|
for_each_set_bit(flowid, msgbuf->flow_map, msgbuf->max_flowrings) { |
|
clear_bit(flowid, msgbuf->flow_map); |
|
brcmf_msgbuf_txflow(msgbuf, flowid); |
|
} |
|
} |
|
|
|
|
|
static int brcmf_msgbuf_schedule_txdata(struct brcmf_msgbuf *msgbuf, u32 flowid, |
|
bool force) |
|
{ |
|
struct brcmf_commonring *commonring; |
|
|
|
set_bit(flowid, msgbuf->flow_map); |
|
commonring = msgbuf->flowrings[flowid]; |
|
if ((force) || (atomic_read(&commonring->outstanding_tx) < |
|
BRCMF_MSGBUF_DELAY_TXWORKER_THRS)) |
|
queue_work(msgbuf->txflow_wq, &msgbuf->txflow_work); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int brcmf_msgbuf_tx_queue_data(struct brcmf_pub *drvr, int ifidx, |
|
struct sk_buff *skb) |
|
{ |
|
struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
struct brcmf_flowring *flow = msgbuf->flow; |
|
struct ethhdr *eh = (struct ethhdr *)(skb->data); |
|
u32 flowid; |
|
u32 queue_count; |
|
bool force; |
|
|
|
flowid = brcmf_flowring_lookup(flow, eh->h_dest, skb->priority, ifidx); |
|
if (flowid == BRCMF_FLOWRING_INVALID_ID) { |
|
flowid = brcmf_msgbuf_flowring_create(msgbuf, ifidx, skb); |
|
if (flowid == BRCMF_FLOWRING_INVALID_ID) |
|
return -ENOMEM; |
|
} |
|
queue_count = brcmf_flowring_enqueue(flow, flowid, skb); |
|
force = ((queue_count % BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) == 0); |
|
brcmf_msgbuf_schedule_txdata(msgbuf, flowid, force); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_configure_addr_mode(struct brcmf_pub *drvr, int ifidx, |
|
enum proto_addr_mode addr_mode) |
|
{ |
|
struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
|
|
brcmf_flowring_configure_addr_mode(msgbuf->flow, ifidx, addr_mode); |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_delete_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) |
|
{ |
|
struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
|
|
brcmf_flowring_delete_peer(msgbuf->flow, ifidx, peer); |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_add_tdls_peer(struct brcmf_pub *drvr, int ifidx, u8 peer[ETH_ALEN]) |
|
{ |
|
struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
|
|
brcmf_flowring_add_tdls_peer(msgbuf->flow, ifidx, peer); |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_process_ioctl_complete(struct brcmf_msgbuf *msgbuf, void *buf) |
|
{ |
|
struct msgbuf_ioctl_resp_hdr *ioctl_resp; |
|
|
|
ioctl_resp = (struct msgbuf_ioctl_resp_hdr *)buf; |
|
|
|
msgbuf->ioctl_resp_status = |
|
(s16)le16_to_cpu(ioctl_resp->compl_hdr.status); |
|
msgbuf->ioctl_resp_ret_len = le16_to_cpu(ioctl_resp->resp_len); |
|
msgbuf->ioctl_resp_pktid = le32_to_cpu(ioctl_resp->msg.request_id); |
|
|
|
brcmf_msgbuf_ioctl_resp_wake(msgbuf); |
|
|
|
if (msgbuf->cur_ioctlrespbuf) |
|
msgbuf->cur_ioctlrespbuf--; |
|
brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf) |
|
{ |
|
struct brcmf_commonring *commonring; |
|
struct msgbuf_tx_status *tx_status; |
|
u32 idx; |
|
struct sk_buff *skb; |
|
u16 flowid; |
|
|
|
tx_status = (struct msgbuf_tx_status *)buf; |
|
idx = le32_to_cpu(tx_status->msg.request_id) - 1; |
|
flowid = le16_to_cpu(tx_status->compl_hdr.flow_ring_id); |
|
flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
|
skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
|
msgbuf->tx_pktids, idx); |
|
if (!skb) |
|
return; |
|
|
|
set_bit(flowid, msgbuf->txstatus_done_map); |
|
commonring = msgbuf->flowrings[flowid]; |
|
atomic_dec(&commonring->outstanding_tx); |
|
|
|
brcmf_txfinalize(brcmf_get_ifp(msgbuf->drvr, tx_status->msg.ifidx), |
|
skb, true); |
|
} |
|
|
|
|
|
static u32 brcmf_msgbuf_rxbuf_data_post(struct brcmf_msgbuf *msgbuf, u32 count) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct brcmf_commonring *commonring; |
|
void *ret_ptr; |
|
struct sk_buff *skb; |
|
u16 alloced; |
|
u32 pktlen; |
|
dma_addr_t physaddr; |
|
struct msgbuf_rx_bufpost *rx_bufpost; |
|
u64 address; |
|
u32 pktid; |
|
u32 i; |
|
|
|
commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; |
|
ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, |
|
count, |
|
&alloced); |
|
if (!ret_ptr) { |
|
brcmf_dbg(MSGBUF, "Failed to reserve space in commonring\n"); |
|
return 0; |
|
} |
|
|
|
for (i = 0; i < alloced; i++) { |
|
rx_bufpost = (struct msgbuf_rx_bufpost *)ret_ptr; |
|
memset(rx_bufpost, 0, sizeof(*rx_bufpost)); |
|
|
|
skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_PKT_SIZE); |
|
|
|
if (skb == NULL) { |
|
bphy_err(drvr, "Failed to alloc SKB\n"); |
|
brcmf_commonring_write_cancel(commonring, alloced - i); |
|
break; |
|
} |
|
|
|
pktlen = skb->len; |
|
if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, |
|
msgbuf->rx_pktids, skb, 0, |
|
&physaddr, &pktid)) { |
|
dev_kfree_skb_any(skb); |
|
bphy_err(drvr, "No PKTID available !!\n"); |
|
brcmf_commonring_write_cancel(commonring, alloced - i); |
|
break; |
|
} |
|
|
|
if (msgbuf->rx_metadata_offset) { |
|
address = (u64)physaddr; |
|
rx_bufpost->metadata_buf_len = |
|
cpu_to_le16(msgbuf->rx_metadata_offset); |
|
rx_bufpost->metadata_buf_addr.high_addr = |
|
cpu_to_le32(address >> 32); |
|
rx_bufpost->metadata_buf_addr.low_addr = |
|
cpu_to_le32(address & 0xffffffff); |
|
|
|
skb_pull(skb, msgbuf->rx_metadata_offset); |
|
pktlen = skb->len; |
|
physaddr += msgbuf->rx_metadata_offset; |
|
} |
|
rx_bufpost->msg.msgtype = MSGBUF_TYPE_RXBUF_POST; |
|
rx_bufpost->msg.request_id = cpu_to_le32(pktid); |
|
|
|
address = (u64)physaddr; |
|
rx_bufpost->data_buf_len = cpu_to_le16((u16)pktlen); |
|
rx_bufpost->data_buf_addr.high_addr = |
|
cpu_to_le32(address >> 32); |
|
rx_bufpost->data_buf_addr.low_addr = |
|
cpu_to_le32(address & 0xffffffff); |
|
|
|
ret_ptr += brcmf_commonring_len_item(commonring); |
|
} |
|
|
|
if (i) |
|
brcmf_commonring_write_complete(commonring); |
|
|
|
return i; |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_rxbuf_data_fill(struct brcmf_msgbuf *msgbuf) |
|
{ |
|
u32 fillbufs; |
|
u32 retcount; |
|
|
|
fillbufs = msgbuf->max_rxbufpost - msgbuf->rxbufpost; |
|
|
|
while (fillbufs) { |
|
retcount = brcmf_msgbuf_rxbuf_data_post(msgbuf, fillbufs); |
|
if (!retcount) |
|
break; |
|
msgbuf->rxbufpost += retcount; |
|
fillbufs -= retcount; |
|
} |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_update_rxbufpost_count(struct brcmf_msgbuf *msgbuf, u16 rxcnt) |
|
{ |
|
msgbuf->rxbufpost -= rxcnt; |
|
if (msgbuf->rxbufpost <= (msgbuf->max_rxbufpost - |
|
BRCMF_MSGBUF_RXBUFPOST_THRESHOLD)) |
|
brcmf_msgbuf_rxbuf_data_fill(msgbuf); |
|
} |
|
|
|
|
|
static u32 |
|
brcmf_msgbuf_rxbuf_ctrl_post(struct brcmf_msgbuf *msgbuf, bool event_buf, |
|
u32 count) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct brcmf_commonring *commonring; |
|
void *ret_ptr; |
|
struct sk_buff *skb; |
|
u16 alloced; |
|
u32 pktlen; |
|
dma_addr_t physaddr; |
|
struct msgbuf_rx_ioctl_resp_or_event *rx_bufpost; |
|
u64 address; |
|
u32 pktid; |
|
u32 i; |
|
|
|
commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
|
brcmf_commonring_lock(commonring); |
|
ret_ptr = brcmf_commonring_reserve_for_write_multiple(commonring, |
|
count, |
|
&alloced); |
|
if (!ret_ptr) { |
|
bphy_err(drvr, "Failed to reserve space in commonring\n"); |
|
brcmf_commonring_unlock(commonring); |
|
return 0; |
|
} |
|
|
|
for (i = 0; i < alloced; i++) { |
|
rx_bufpost = (struct msgbuf_rx_ioctl_resp_or_event *)ret_ptr; |
|
memset(rx_bufpost, 0, sizeof(*rx_bufpost)); |
|
|
|
skb = brcmu_pkt_buf_get_skb(BRCMF_MSGBUF_MAX_CTL_PKT_SIZE); |
|
|
|
if (skb == NULL) { |
|
bphy_err(drvr, "Failed to alloc SKB\n"); |
|
brcmf_commonring_write_cancel(commonring, alloced - i); |
|
break; |
|
} |
|
|
|
pktlen = skb->len; |
|
if (brcmf_msgbuf_alloc_pktid(msgbuf->drvr->bus_if->dev, |
|
msgbuf->rx_pktids, skb, 0, |
|
&physaddr, &pktid)) { |
|
dev_kfree_skb_any(skb); |
|
bphy_err(drvr, "No PKTID available !!\n"); |
|
brcmf_commonring_write_cancel(commonring, alloced - i); |
|
break; |
|
} |
|
if (event_buf) |
|
rx_bufpost->msg.msgtype = MSGBUF_TYPE_EVENT_BUF_POST; |
|
else |
|
rx_bufpost->msg.msgtype = |
|
MSGBUF_TYPE_IOCTLRESP_BUF_POST; |
|
rx_bufpost->msg.request_id = cpu_to_le32(pktid); |
|
|
|
address = (u64)physaddr; |
|
rx_bufpost->host_buf_len = cpu_to_le16((u16)pktlen); |
|
rx_bufpost->host_buf_addr.high_addr = |
|
cpu_to_le32(address >> 32); |
|
rx_bufpost->host_buf_addr.low_addr = |
|
cpu_to_le32(address & 0xffffffff); |
|
|
|
ret_ptr += brcmf_commonring_len_item(commonring); |
|
} |
|
|
|
if (i) |
|
brcmf_commonring_write_complete(commonring); |
|
|
|
brcmf_commonring_unlock(commonring); |
|
|
|
return i; |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_rxbuf_ioctlresp_post(struct brcmf_msgbuf *msgbuf) |
|
{ |
|
u32 count; |
|
|
|
count = msgbuf->max_ioctlrespbuf - msgbuf->cur_ioctlrespbuf; |
|
count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, false, count); |
|
msgbuf->cur_ioctlrespbuf += count; |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf) |
|
{ |
|
u32 count; |
|
|
|
count = msgbuf->max_eventbuf - msgbuf->cur_eventbuf; |
|
count = brcmf_msgbuf_rxbuf_ctrl_post(msgbuf, true, count); |
|
msgbuf->cur_eventbuf += count; |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct msgbuf_rx_event *event; |
|
u32 idx; |
|
u16 buflen; |
|
struct sk_buff *skb; |
|
struct brcmf_if *ifp; |
|
|
|
event = (struct msgbuf_rx_event *)buf; |
|
idx = le32_to_cpu(event->msg.request_id); |
|
buflen = le16_to_cpu(event->event_data_len); |
|
|
|
if (msgbuf->cur_eventbuf) |
|
msgbuf->cur_eventbuf--; |
|
brcmf_msgbuf_rxbuf_event_post(msgbuf); |
|
|
|
skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
|
msgbuf->rx_pktids, idx); |
|
if (!skb) |
|
return; |
|
|
|
if (msgbuf->rx_dataoffset) |
|
skb_pull(skb, msgbuf->rx_dataoffset); |
|
|
|
skb_trim(skb, buflen); |
|
|
|
ifp = brcmf_get_ifp(msgbuf->drvr, event->msg.ifidx); |
|
if (!ifp || !ifp->ndev) { |
|
bphy_err(drvr, "Received pkt for invalid ifidx %d\n", |
|
event->msg.ifidx); |
|
goto exit; |
|
} |
|
|
|
skb->protocol = eth_type_trans(skb, ifp->ndev); |
|
|
|
brcmf_fweh_process_skb(ifp->drvr, skb, 0, GFP_KERNEL); |
|
|
|
exit: |
|
brcmu_pkt_buf_free_skb(skb); |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct msgbuf_rx_complete *rx_complete; |
|
struct sk_buff *skb; |
|
u16 data_offset; |
|
u16 buflen; |
|
u16 flags; |
|
u32 idx; |
|
struct brcmf_if *ifp; |
|
|
|
brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1); |
|
|
|
rx_complete = (struct msgbuf_rx_complete *)buf; |
|
data_offset = le16_to_cpu(rx_complete->data_offset); |
|
buflen = le16_to_cpu(rx_complete->data_len); |
|
idx = le32_to_cpu(rx_complete->msg.request_id); |
|
flags = le16_to_cpu(rx_complete->flags); |
|
|
|
skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev, |
|
msgbuf->rx_pktids, idx); |
|
if (!skb) |
|
return; |
|
|
|
if (data_offset) |
|
skb_pull(skb, data_offset); |
|
else if (msgbuf->rx_dataoffset) |
|
skb_pull(skb, msgbuf->rx_dataoffset); |
|
|
|
skb_trim(skb, buflen); |
|
|
|
if ((flags & BRCMF_MSGBUF_PKT_FLAGS_FRAME_MASK) == |
|
BRCMF_MSGBUF_PKT_FLAGS_FRAME_802_11) { |
|
ifp = msgbuf->drvr->mon_if; |
|
|
|
if (!ifp) { |
|
bphy_err(drvr, "Received unexpected monitor pkt\n"); |
|
brcmu_pkt_buf_free_skb(skb); |
|
return; |
|
} |
|
|
|
brcmf_netif_mon_rx(ifp, skb); |
|
return; |
|
} |
|
|
|
ifp = brcmf_get_ifp(msgbuf->drvr, rx_complete->msg.ifidx); |
|
if (!ifp || !ifp->ndev) { |
|
bphy_err(drvr, "Received pkt for invalid ifidx %d\n", |
|
rx_complete->msg.ifidx); |
|
brcmu_pkt_buf_free_skb(skb); |
|
return; |
|
} |
|
|
|
skb->protocol = eth_type_trans(skb, ifp->ndev); |
|
brcmf_netif_rx(ifp, skb, false); |
|
} |
|
|
|
static void brcmf_msgbuf_process_gen_status(struct brcmf_msgbuf *msgbuf, |
|
void *buf) |
|
{ |
|
struct msgbuf_gen_status *gen_status = buf; |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
int err; |
|
|
|
err = le16_to_cpu(gen_status->compl_hdr.status); |
|
if (err) |
|
bphy_err(drvr, "Firmware reported general error: %d\n", err); |
|
} |
|
|
|
static void brcmf_msgbuf_process_ring_status(struct brcmf_msgbuf *msgbuf, |
|
void *buf) |
|
{ |
|
struct msgbuf_ring_status *ring_status = buf; |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
int err; |
|
|
|
err = le16_to_cpu(ring_status->compl_hdr.status); |
|
if (err) { |
|
int ring = le16_to_cpu(ring_status->compl_hdr.flow_ring_id); |
|
|
|
bphy_err(drvr, "Firmware reported ring %d error: %d\n", ring, |
|
err); |
|
} |
|
} |
|
|
|
static void |
|
brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf, |
|
void *buf) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct msgbuf_flowring_create_resp *flowring_create_resp; |
|
u16 status; |
|
u16 flowid; |
|
|
|
flowring_create_resp = (struct msgbuf_flowring_create_resp *)buf; |
|
|
|
flowid = le16_to_cpu(flowring_create_resp->compl_hdr.flow_ring_id); |
|
flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
|
status = le16_to_cpu(flowring_create_resp->compl_hdr.status); |
|
|
|
if (status) { |
|
bphy_err(drvr, "Flowring creation failed, code %d\n", status); |
|
brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
|
return; |
|
} |
|
brcmf_dbg(MSGBUF, "Flowring %d Create response status %d\n", flowid, |
|
status); |
|
|
|
brcmf_flowring_open(msgbuf->flow, flowid); |
|
|
|
brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); |
|
} |
|
|
|
|
|
static void |
|
brcmf_msgbuf_process_flow_ring_delete_response(struct brcmf_msgbuf *msgbuf, |
|
void *buf) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct msgbuf_flowring_delete_resp *flowring_delete_resp; |
|
u16 status; |
|
u16 flowid; |
|
|
|
flowring_delete_resp = (struct msgbuf_flowring_delete_resp *)buf; |
|
|
|
flowid = le16_to_cpu(flowring_delete_resp->compl_hdr.flow_ring_id); |
|
flowid -= BRCMF_H2D_MSGRING_FLOWRING_IDSTART; |
|
status = le16_to_cpu(flowring_delete_resp->compl_hdr.status); |
|
|
|
if (status) { |
|
bphy_err(drvr, "Flowring deletion failed, code %d\n", status); |
|
brcmf_flowring_delete(msgbuf->flow, flowid); |
|
return; |
|
} |
|
brcmf_dbg(MSGBUF, "Flowring %d Delete response status %d\n", flowid, |
|
status); |
|
|
|
brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf) |
|
{ |
|
struct brcmf_pub *drvr = msgbuf->drvr; |
|
struct msgbuf_common_hdr *msg; |
|
|
|
msg = (struct msgbuf_common_hdr *)buf; |
|
switch (msg->msgtype) { |
|
case MSGBUF_TYPE_GEN_STATUS: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_GEN_STATUS\n"); |
|
brcmf_msgbuf_process_gen_status(msgbuf, buf); |
|
break; |
|
case MSGBUF_TYPE_RING_STATUS: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RING_STATUS\n"); |
|
brcmf_msgbuf_process_ring_status(msgbuf, buf); |
|
break; |
|
case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n"); |
|
brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf); |
|
break; |
|
case MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_DELETE_CMPLT\n"); |
|
brcmf_msgbuf_process_flow_ring_delete_response(msgbuf, buf); |
|
break; |
|
case MSGBUF_TYPE_IOCTLPTR_REQ_ACK: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTLPTR_REQ_ACK\n"); |
|
break; |
|
case MSGBUF_TYPE_IOCTL_CMPLT: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_IOCTL_CMPLT\n"); |
|
brcmf_msgbuf_process_ioctl_complete(msgbuf, buf); |
|
break; |
|
case MSGBUF_TYPE_WL_EVENT: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_WL_EVENT\n"); |
|
brcmf_msgbuf_process_event(msgbuf, buf); |
|
break; |
|
case MSGBUF_TYPE_TX_STATUS: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_TX_STATUS\n"); |
|
brcmf_msgbuf_process_txstatus(msgbuf, buf); |
|
break; |
|
case MSGBUF_TYPE_RX_CMPLT: |
|
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RX_CMPLT\n"); |
|
brcmf_msgbuf_process_rx_complete(msgbuf, buf); |
|
break; |
|
default: |
|
bphy_err(drvr, "Unsupported msgtype %d\n", msg->msgtype); |
|
break; |
|
} |
|
} |
|
|
|
|
|
static void brcmf_msgbuf_process_rx(struct brcmf_msgbuf *msgbuf, |
|
struct brcmf_commonring *commonring) |
|
{ |
|
void *buf; |
|
u16 count; |
|
u16 processed; |
|
|
|
again: |
|
buf = brcmf_commonring_get_read_ptr(commonring, &count); |
|
if (buf == NULL) |
|
return; |
|
|
|
processed = 0; |
|
while (count) { |
|
brcmf_msgbuf_process_msgtype(msgbuf, |
|
buf + msgbuf->rx_dataoffset); |
|
buf += brcmf_commonring_len_item(commonring); |
|
processed++; |
|
if (processed == BRCMF_MSGBUF_UPDATE_RX_PTR_THRS) { |
|
brcmf_commonring_read_complete(commonring, processed); |
|
processed = 0; |
|
} |
|
count--; |
|
} |
|
if (processed) |
|
brcmf_commonring_read_complete(commonring, processed); |
|
|
|
if (commonring->r_ptr == 0) |
|
goto again; |
|
} |
|
|
|
|
|
int brcmf_proto_msgbuf_rx_trigger(struct device *dev) |
|
{ |
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
|
struct brcmf_pub *drvr = bus_if->drvr; |
|
struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
struct brcmf_commonring *commonring; |
|
void *buf; |
|
u32 flowid; |
|
int qlen; |
|
|
|
buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; |
|
brcmf_msgbuf_process_rx(msgbuf, buf); |
|
buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; |
|
brcmf_msgbuf_process_rx(msgbuf, buf); |
|
buf = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; |
|
brcmf_msgbuf_process_rx(msgbuf, buf); |
|
|
|
for_each_set_bit(flowid, msgbuf->txstatus_done_map, |
|
msgbuf->max_flowrings) { |
|
clear_bit(flowid, msgbuf->txstatus_done_map); |
|
commonring = msgbuf->flowrings[flowid]; |
|
qlen = brcmf_flowring_qlen(msgbuf->flow, flowid); |
|
if ((qlen > BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS) || |
|
((qlen) && (atomic_read(&commonring->outstanding_tx) < |
|
BRCMF_MSGBUF_TRICKLE_TXWORKER_THRS))) |
|
brcmf_msgbuf_schedule_txdata(msgbuf, flowid, true); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
|
|
void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u16 flowid) |
|
{ |
|
struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
struct msgbuf_tx_flowring_delete_req *delete; |
|
struct brcmf_commonring *commonring; |
|
void *ret_ptr; |
|
u8 ifidx; |
|
int err; |
|
|
|
/* no need to submit if firmware can not be reached */ |
|
if (drvr->bus_if->state != BRCMF_BUS_UP) { |
|
brcmf_dbg(MSGBUF, "bus down, flowring will be removed\n"); |
|
brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
|
return; |
|
} |
|
|
|
commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
|
brcmf_commonring_lock(commonring); |
|
ret_ptr = brcmf_commonring_reserve_for_write(commonring); |
|
if (!ret_ptr) { |
|
bphy_err(drvr, "FW unaware, flowring will be removed !!\n"); |
|
brcmf_commonring_unlock(commonring); |
|
brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
|
return; |
|
} |
|
|
|
delete = (struct msgbuf_tx_flowring_delete_req *)ret_ptr; |
|
|
|
ifidx = brcmf_flowring_ifidx_get(msgbuf->flow, flowid); |
|
|
|
delete->msg.msgtype = MSGBUF_TYPE_FLOW_RING_DELETE; |
|
delete->msg.ifidx = ifidx; |
|
delete->msg.request_id = 0; |
|
|
|
delete->flow_ring_id = cpu_to_le16(flowid + |
|
BRCMF_H2D_MSGRING_FLOWRING_IDSTART); |
|
delete->reason = 0; |
|
|
|
brcmf_dbg(MSGBUF, "Send Flow Delete Req flow ID %d, ifindex %d\n", |
|
flowid, ifidx); |
|
|
|
err = brcmf_commonring_write_complete(commonring); |
|
brcmf_commonring_unlock(commonring); |
|
if (err) { |
|
bphy_err(drvr, "Failed to submit RING_DELETE, flowring will be removed\n"); |
|
brcmf_msgbuf_remove_flowring(msgbuf, flowid); |
|
} |
|
} |
|
|
|
#ifdef DEBUG |
|
static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) |
|
{ |
|
struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); |
|
struct brcmf_pub *drvr = bus_if->drvr; |
|
struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
struct brcmf_commonring *commonring; |
|
u16 i; |
|
struct brcmf_flowring_ring *ring; |
|
struct brcmf_flowring_hash *hash; |
|
|
|
commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; |
|
seq_printf(seq, "h2d_ctl_submit: rp %4u, wp %4u, depth %4u\n", |
|
commonring->r_ptr, commonring->w_ptr, commonring->depth); |
|
commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; |
|
seq_printf(seq, "h2d_rx_submit: rp %4u, wp %4u, depth %4u\n", |
|
commonring->r_ptr, commonring->w_ptr, commonring->depth); |
|
commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; |
|
seq_printf(seq, "d2h_ctl_cmplt: rp %4u, wp %4u, depth %4u\n", |
|
commonring->r_ptr, commonring->w_ptr, commonring->depth); |
|
commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; |
|
seq_printf(seq, "d2h_tx_cmplt: rp %4u, wp %4u, depth %4u\n", |
|
commonring->r_ptr, commonring->w_ptr, commonring->depth); |
|
commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; |
|
seq_printf(seq, "d2h_rx_cmplt: rp %4u, wp %4u, depth %4u\n", |
|
commonring->r_ptr, commonring->w_ptr, commonring->depth); |
|
|
|
seq_printf(seq, "\nh2d_flowrings: depth %u\n", |
|
BRCMF_H2D_TXFLOWRING_MAX_ITEM); |
|
seq_puts(seq, "Active flowrings:\n"); |
|
for (i = 0; i < msgbuf->flow->nrofrings; i++) { |
|
if (!msgbuf->flow->rings[i]) |
|
continue; |
|
ring = msgbuf->flow->rings[i]; |
|
if (ring->status != RING_OPEN) |
|
continue; |
|
commonring = msgbuf->flowrings[i]; |
|
hash = &msgbuf->flow->hash[ring->hash_id]; |
|
seq_printf(seq, "id %3u: rp %4u, wp %4u, qlen %4u, blocked %u\n" |
|
" ifidx %u, fifo %u, da %pM\n", |
|
i, commonring->r_ptr, commonring->w_ptr, |
|
skb_queue_len(&ring->skblist), ring->blocked, |
|
hash->ifidx, hash->fifo, hash->mac); |
|
} |
|
|
|
return 0; |
|
} |
|
#else |
|
static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) |
|
{ |
|
return 0; |
|
} |
|
#endif |
|
|
|
static void brcmf_msgbuf_debugfs_create(struct brcmf_pub *drvr) |
|
{ |
|
brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read); |
|
} |
|
|
|
int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) |
|
{ |
|
struct brcmf_bus_msgbuf *if_msgbuf; |
|
struct brcmf_msgbuf *msgbuf; |
|
u64 address; |
|
u32 count; |
|
|
|
if_msgbuf = drvr->bus_if->msgbuf; |
|
|
|
if (if_msgbuf->max_flowrings >= BRCMF_FLOWRING_HASHSIZE) { |
|
bphy_err(drvr, "driver not configured for this many flowrings %d\n", |
|
if_msgbuf->max_flowrings); |
|
if_msgbuf->max_flowrings = BRCMF_FLOWRING_HASHSIZE - 1; |
|
} |
|
|
|
msgbuf = kzalloc(sizeof(*msgbuf), GFP_KERNEL); |
|
if (!msgbuf) |
|
goto fail; |
|
|
|
msgbuf->txflow_wq = create_singlethread_workqueue("msgbuf_txflow"); |
|
if (msgbuf->txflow_wq == NULL) { |
|
bphy_err(drvr, "workqueue creation failed\n"); |
|
goto fail; |
|
} |
|
INIT_WORK(&msgbuf->txflow_work, brcmf_msgbuf_txflow_worker); |
|
count = BITS_TO_LONGS(if_msgbuf->max_flowrings); |
|
count = count * sizeof(unsigned long); |
|
msgbuf->flow_map = kzalloc(count, GFP_KERNEL); |
|
if (!msgbuf->flow_map) |
|
goto fail; |
|
|
|
msgbuf->txstatus_done_map = kzalloc(count, GFP_KERNEL); |
|
if (!msgbuf->txstatus_done_map) |
|
goto fail; |
|
|
|
msgbuf->drvr = drvr; |
|
msgbuf->ioctbuf = dma_alloc_coherent(drvr->bus_if->dev, |
|
BRCMF_TX_IOCTL_MAX_MSG_SIZE, |
|
&msgbuf->ioctbuf_handle, |
|
GFP_KERNEL); |
|
if (!msgbuf->ioctbuf) |
|
goto fail; |
|
address = (u64)msgbuf->ioctbuf_handle; |
|
msgbuf->ioctbuf_phys_hi = address >> 32; |
|
msgbuf->ioctbuf_phys_lo = address & 0xffffffff; |
|
|
|
drvr->proto->hdrpull = brcmf_msgbuf_hdrpull; |
|
drvr->proto->query_dcmd = brcmf_msgbuf_query_dcmd; |
|
drvr->proto->set_dcmd = brcmf_msgbuf_set_dcmd; |
|
drvr->proto->tx_queue_data = brcmf_msgbuf_tx_queue_data; |
|
drvr->proto->configure_addr_mode = brcmf_msgbuf_configure_addr_mode; |
|
drvr->proto->delete_peer = brcmf_msgbuf_delete_peer; |
|
drvr->proto->add_tdls_peer = brcmf_msgbuf_add_tdls_peer; |
|
drvr->proto->rxreorder = brcmf_msgbuf_rxreorder; |
|
drvr->proto->debugfs_create = brcmf_msgbuf_debugfs_create; |
|
drvr->proto->pd = msgbuf; |
|
|
|
init_waitqueue_head(&msgbuf->ioctl_resp_wait); |
|
|
|
msgbuf->commonrings = |
|
(struct brcmf_commonring **)if_msgbuf->commonrings; |
|
msgbuf->flowrings = (struct brcmf_commonring **)if_msgbuf->flowrings; |
|
msgbuf->max_flowrings = if_msgbuf->max_flowrings; |
|
msgbuf->flowring_dma_handle = |
|
kcalloc(msgbuf->max_flowrings, |
|
sizeof(*msgbuf->flowring_dma_handle), GFP_KERNEL); |
|
if (!msgbuf->flowring_dma_handle) |
|
goto fail; |
|
|
|
msgbuf->rx_dataoffset = if_msgbuf->rx_dataoffset; |
|
msgbuf->max_rxbufpost = if_msgbuf->max_rxbufpost; |
|
|
|
msgbuf->max_ioctlrespbuf = BRCMF_MSGBUF_MAX_IOCTLRESPBUF_POST; |
|
msgbuf->max_eventbuf = BRCMF_MSGBUF_MAX_EVENTBUF_POST; |
|
|
|
msgbuf->tx_pktids = brcmf_msgbuf_init_pktids(NR_TX_PKTIDS, |
|
DMA_TO_DEVICE); |
|
if (!msgbuf->tx_pktids) |
|
goto fail; |
|
msgbuf->rx_pktids = brcmf_msgbuf_init_pktids(NR_RX_PKTIDS, |
|
DMA_FROM_DEVICE); |
|
if (!msgbuf->rx_pktids) |
|
goto fail; |
|
|
|
msgbuf->flow = brcmf_flowring_attach(drvr->bus_if->dev, |
|
if_msgbuf->max_flowrings); |
|
if (!msgbuf->flow) |
|
goto fail; |
|
|
|
|
|
brcmf_dbg(MSGBUF, "Feeding buffers, rx data %d, rx event %d, rx ioctl resp %d\n", |
|
msgbuf->max_rxbufpost, msgbuf->max_eventbuf, |
|
msgbuf->max_ioctlrespbuf); |
|
count = 0; |
|
do { |
|
brcmf_msgbuf_rxbuf_data_fill(msgbuf); |
|
if (msgbuf->max_rxbufpost != msgbuf->rxbufpost) |
|
msleep(10); |
|
else |
|
break; |
|
count++; |
|
} while (count < 10); |
|
brcmf_msgbuf_rxbuf_event_post(msgbuf); |
|
brcmf_msgbuf_rxbuf_ioctlresp_post(msgbuf); |
|
|
|
INIT_WORK(&msgbuf->flowring_work, brcmf_msgbuf_flowring_worker); |
|
spin_lock_init(&msgbuf->flowring_work_lock); |
|
INIT_LIST_HEAD(&msgbuf->work_queue); |
|
|
|
return 0; |
|
|
|
fail: |
|
if (msgbuf) { |
|
kfree(msgbuf->flow_map); |
|
kfree(msgbuf->txstatus_done_map); |
|
brcmf_msgbuf_release_pktids(msgbuf); |
|
kfree(msgbuf->flowring_dma_handle); |
|
if (msgbuf->ioctbuf) |
|
dma_free_coherent(drvr->bus_if->dev, |
|
BRCMF_TX_IOCTL_MAX_MSG_SIZE, |
|
msgbuf->ioctbuf, |
|
msgbuf->ioctbuf_handle); |
|
if (msgbuf->txflow_wq) |
|
destroy_workqueue(msgbuf->txflow_wq); |
|
kfree(msgbuf); |
|
} |
|
return -ENOMEM; |
|
} |
|
|
|
|
|
void brcmf_proto_msgbuf_detach(struct brcmf_pub *drvr) |
|
{ |
|
struct brcmf_msgbuf *msgbuf; |
|
struct brcmf_msgbuf_work_item *work; |
|
|
|
brcmf_dbg(TRACE, "Enter\n"); |
|
if (drvr->proto->pd) { |
|
msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; |
|
cancel_work_sync(&msgbuf->flowring_work); |
|
while (!list_empty(&msgbuf->work_queue)) { |
|
work = list_first_entry(&msgbuf->work_queue, |
|
struct brcmf_msgbuf_work_item, |
|
queue); |
|
list_del(&work->queue); |
|
kfree(work); |
|
} |
|
kfree(msgbuf->flow_map); |
|
kfree(msgbuf->txstatus_done_map); |
|
if (msgbuf->txflow_wq) |
|
destroy_workqueue(msgbuf->txflow_wq); |
|
|
|
brcmf_flowring_detach(msgbuf->flow); |
|
dma_free_coherent(drvr->bus_if->dev, |
|
BRCMF_TX_IOCTL_MAX_MSG_SIZE, |
|
msgbuf->ioctbuf, msgbuf->ioctbuf_handle); |
|
brcmf_msgbuf_release_pktids(msgbuf); |
|
kfree(msgbuf->flowring_dma_handle); |
|
kfree(msgbuf); |
|
drvr->proto->pd = NULL; |
|
} |
|
}
|
|
|