9a1bb60250
This patch will add the msgbuf protocol. This protocol is used by the soon to be added new bus interface PCIe. Msgbuf is a protocol where most data is and remains located on the host (driver) side and transferred by DMA from and to device. Msgbuf is the protocol which takes care of the signalling of the buffers between host and device which identifies this DMA-able data. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/* Copyright (c) 2014 Broadcom Corporation
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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 ANY
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* 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 ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef BRCMFMAC_FLOWRING_H
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#define BRCMFMAC_FLOWRING_H
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#define BRCMF_FLOWRING_HASHSIZE 256
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#define BRCMF_FLOWRING_INVALID_ID 0xFFFFFFFF
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struct brcmf_flowring_hash {
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u8 mac[ETH_ALEN];
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u8 fifo;
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u8 ifidx;
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u8 flowid;
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};
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enum ring_status {
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RING_CLOSED,
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RING_CLOSING,
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RING_OPEN
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};
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struct brcmf_flowring_ring {
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u8 hash_id;
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u8 blocked;
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enum ring_status status;
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struct sk_buff_head skblist;
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};
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struct brcmf_flowring {
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struct device *dev;
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struct brcmf_flowring_hash hash[BRCMF_FLOWRING_HASHSIZE];
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struct brcmf_flowring_ring **rings;
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enum proto_addr_mode addr_mode[BRCMF_MAX_IFS];
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u16 nrofrings;
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};
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u32 brcmf_flowring_lookup(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
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u8 prio, u8 ifidx);
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u32 brcmf_flowring_create(struct brcmf_flowring *flow, u8 da[ETH_ALEN],
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u8 prio, u8 ifidx);
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void brcmf_flowring_delete(struct brcmf_flowring *flow, u8 flowid);
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void brcmf_flowring_open(struct brcmf_flowring *flow, u8 flowid);
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u8 brcmf_flowring_tid(struct brcmf_flowring *flow, u8 flowid);
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void brcmf_flowring_enqueue(struct brcmf_flowring *flow, u8 flowid,
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struct sk_buff *skb);
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struct sk_buff *brcmf_flowring_dequeue(struct brcmf_flowring *flow, u8 flowid);
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void brcmf_flowring_reinsert(struct brcmf_flowring *flow, u8 flowid,
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struct sk_buff *skb);
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u32 brcmf_flowring_qlen(struct brcmf_flowring *flow, u8 flowid);
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u8 brcmf_flowring_ifidx_get(struct brcmf_flowring *flow, u8 flowid);
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struct brcmf_flowring *brcmf_flowring_attach(struct device *dev, u16 nrofrings);
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void brcmf_flowring_detach(struct brcmf_flowring *flow);
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void brcmf_flowring_configure_addr_mode(struct brcmf_flowring *flow, int ifidx,
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enum proto_addr_mode addr_mode);
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void brcmf_flowring_delete_peer(struct brcmf_flowring *flow, int ifidx,
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u8 peer[ETH_ALEN]);
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#endif /* BRCMFMAC_FLOWRING_H */
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