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linux/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h
Thomas Gleixner 687006e20c net: brcmfmac: Convey execution context via argument to brcmf_netif_rx()
bcrmgf_netif_rx() uses in_interrupt to chose between netif_rx() and
netif_rx_ni(). in_interrupt() usage in drivers is phased out.

Convey the execution mode via an 'inirq' argument through the various
callchains leading to brcmf_netif_rx():

brcmf_pcie_isr_thread()		    <- Task context
  brcmf_proto_msgbuf_rx_trigger()
    brcmf_msgbuf_process_rx()
      brcmf_msgbuf_process_msgtype()
        brcmf_msgbuf_process_rx_complete()
	  brcmf_netif_mon_rx()
	     brcmf_netif_rx(isirq = false)
	  brcmf_netif_rx(isirq = false)

brcmf_sdio_readframes()  <- Task context sdio_claim_host() might sleep
  brcmf_rx_frame(isirq = false)

brcmf_sdio_rxglom()      <- Task context sdio_claim_host() might sleep
  brcmf_rx_frame(isirq = false)

brcmf_usb_rx_complete()  <- Interrupt context
  brcmf_rx_frame(isirq = true)

brcmf_rx_frame()
  brcmf_proto_rxreorder()
    brcmf_proto_bcdc_rxreorder()
      brcmf_fws_rxreorder()
        brcmf_netif_rx()
      brcmf_netif_rx()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-29 14:02:55 -07:00

47 lines
1.7 KiB
C

// SPDX-License-Identifier: ISC
/*
* Copyright (c) 2012 Broadcom Corporation
*/
#ifndef FWSIGNAL_H_
#define FWSIGNAL_H_
/**
* enum brcmf_fws_fifo - fifo indices used by dongle firmware.
*
* @BRCMF_FWS_FIFO_FIRST: first fifo, ie. background.
* @BRCMF_FWS_FIFO_AC_BK: fifo for background traffic.
* @BRCMF_FWS_FIFO_AC_BE: fifo for best-effort traffic.
* @BRCMF_FWS_FIFO_AC_VI: fifo for video traffic.
* @BRCMF_FWS_FIFO_AC_VO: fifo for voice traffic.
* @BRCMF_FWS_FIFO_BCMC: fifo for broadcast/multicast (AP only).
* @BRCMF_FWS_FIFO_ATIM: fifo for ATIM (AP only).
* @BRCMF_FWS_FIFO_COUNT: number of fifos.
*/
enum brcmf_fws_fifo {
BRCMF_FWS_FIFO_FIRST,
BRCMF_FWS_FIFO_AC_BK = BRCMF_FWS_FIFO_FIRST,
BRCMF_FWS_FIFO_AC_BE,
BRCMF_FWS_FIFO_AC_VI,
BRCMF_FWS_FIFO_AC_VO,
BRCMF_FWS_FIFO_BCMC,
BRCMF_FWS_FIFO_ATIM,
BRCMF_FWS_FIFO_COUNT
};
struct brcmf_fws_info *brcmf_fws_attach(struct brcmf_pub *drvr);
void brcmf_fws_detach(struct brcmf_fws_info *fws);
void brcmf_fws_debugfs_create(struct brcmf_pub *drvr);
bool brcmf_fws_queue_skbs(struct brcmf_fws_info *fws);
bool brcmf_fws_fc_active(struct brcmf_fws_info *fws);
void brcmf_fws_hdrpull(struct brcmf_if *ifp, s16 siglen, struct sk_buff *skb);
int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb);
void brcmf_fws_reset_interface(struct brcmf_if *ifp);
void brcmf_fws_add_interface(struct brcmf_if *ifp);
void brcmf_fws_del_interface(struct brcmf_if *ifp);
void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb);
void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked);
void brcmf_fws_rxreorder(struct brcmf_if *ifp, struct sk_buff *skb, bool inirq);
#endif /* FWSIGNAL_H_ */