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Commit 76584ece authored by Arend van Spriel's avatar Arend van Spriel Committed by John W. Linville
Browse files

brcmfmac: add tracepoint for capturing the SDPCM header 



Having the SDPCM header information in the traces is a valuable
piece of information.

Reviewed-by: default avatarFranky Lin <frankyl@broadcom.com>
Reviewed-by: default avatarHante Meuleman <meuleman@broadcom.com>
Reviewed-by: default avatarPieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: default avatarArend van Spriel <arend@broadcom.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent b4caee6a

drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c

+3 −0
Original line number Diff line number Diff line
@@ -1147,6 +1147,8 @@ static int brcmf_sdio_hdparse(struct brcmf_sdio *bus, u8 *header, 
	u8 rx_seq, fc, tx_seq_max;

	u32 swheader;



	trace_brcmf_sdpcm_hdr(false, header);



	/* hw header */

	len = get_unaligned_le16(header);

	checksum = get_unaligned_le16(header + sizeof(u16));
@@ -1269,6 +1271,7 @@ static void brcmf_sdio_hdpack(struct brcmf_sdio *bus, u8 *header, 
		     SDPCM_DOFFSET_MASK;

	*(((__le32 *)header) + 1) = cpu_to_le32(sw_header);

	*(((__le32 *)header) + 2) = 0;

	trace_brcmf_sdpcm_hdr(true, header);

}



static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)

drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h

+17 −0
Original line number Diff line number Diff line
@@ -110,6 +110,23 @@ TRACE_EVENT(brcmf_bdchdr, 
	TP_printk("bdc: prio=%d siglen=%d", __entry->prio, __entry->siglen)

);



TRACE_EVENT(brcmf_sdpcm_hdr,

	TP_PROTO(bool tx, void *data),

	TP_ARGS(tx, data),

	TP_STRUCT__entry(

		__field(u8, tx)

		__field(u16, len)

		__array(u8, hdr, 12)

	),

	TP_fast_assign(

		memcpy(__entry->hdr, data, 12);

		__entry->len = __entry->hdr[0] | (__entry->hdr[1] << 8);

		__entry->tx = tx ? 1 : 0;

	),

	TP_printk("sdpcm: %s len %u, seq %d", __entry->tx ? "TX" : "RX",

		  __entry->len, __entry->hdr[4])

);



#ifdef CONFIG_BRCM_TRACING



#undef TRACE_INCLUDE_PATH