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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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df50f75696
On bus flow control (no more host bus resources to send packets to device) the netif flow control was toggled, however credit management should also take this status into account. Since there are multiple sources handling this flow control necessary spinlocks were added to protect flow control related data/states. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@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>
35 lines
1.4 KiB
C
35 lines
1.4 KiB
C
/*
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* Copyright (c) 2012 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 FWSIGNAL_H_
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#define FWSIGNAL_H_
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int brcmf_fws_init(struct brcmf_pub *drvr);
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void brcmf_fws_deinit(struct brcmf_pub *drvr);
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bool brcmf_fws_fc_active(struct brcmf_fws_info *fws);
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int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
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struct sk_buff *skb);
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int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb);
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void brcmf_fws_reset_interface(struct brcmf_if *ifp);
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void brcmf_fws_add_interface(struct brcmf_if *ifp);
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void brcmf_fws_del_interface(struct brcmf_if *ifp);
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void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb);
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void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked);
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#endif /* FWSIGNAL_H_ */
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