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brcmfmac: add parameter to brcmf_proto_hdrpush() for data offset 

The function brcmf_proto_hdrpush() increases the header space and
fills in the protocol header fields. One field is the data offset
which is currently fixed to zero meaning the data follows right
after the header. The parameter is added to determine the actual
start of data. This will be used for firmware signalling.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2013-03-03 12:45:32 +01:00 committed by John W. Linville
parent 17f14d7c1f
commit 8f0c3b6d44
3 changed files with 4 additions and 5 deletions
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5
drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
View File

@ -272,7 +272,7 @@ static void pkt_set_sum_good(struct sk_buff *skb, bool x)
skb->ip_summed = (x ? CHECKSUM_UNNECESSARY : CHECKSUM_NONE);
}
void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx,
void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx, u8 offset,
struct sk_buff *pktbuf)
{
struct brcmf_proto_bdc_header *h;
@ -280,7 +280,6 @@ void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx,
brcmf_dbg(CDC, "Enter\n");
/* Push BDC header used to convey priority for buses that don't */
skb_push(pktbuf, BDC_HEADER_LEN);
h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
@ -291,7 +290,7 @@ void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx,
h->priority = (pktbuf->priority & BDC_PRIORITY_MASK);
h->flags2 = 0;
h->data_offset = 0;
h->data_offset = offset;
BDC_SET_IF_IDX(h, ifidx);
}

2
drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
View File

@ -231,7 +231,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
atomic_inc(&ifp->pend_8021x_cnt);
/* If the protocol uses a data header, apply it */
brcmf_proto_hdrpush(drvr, ifp->ifidx, skb);
brcmf_proto_hdrpush(drvr, ifp->ifidx, 0, skb);
/* Use bus module to send data frame */
ret = brcmf_bus_txdata(drvr->bus_if, skb);

2
drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h
View File

@ -33,7 +33,7 @@ extern void brcmf_proto_stop(struct brcmf_pub *drvr);
/* Add any protocol-specific data header.
* Caller must reserve prot_hdrlen prepend space.
*/
extern void brcmf_proto_hdrpush(struct brcmf_pub *, int ifidx,
extern void brcmf_proto_hdrpush(struct brcmf_pub *, int ifidx, u8 offset,
struct sk_buff *txp);
/* Sets dongle media info (drv_version, mac address). */