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brcmfmac: fix brcmf_sdcard_recv_chain() for host without sg support 

If the SDIO host controller does not support scatter-gather the glom
superframe must be transfered from the device and the data for each
packet in the queue must be extracted from it.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@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 2013-10-15 15:44:57 +02:00 committed by John W. Linville
parent a64304f0a2
commit a413e39a38
3 changed files with 21 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
View File

@ -569,8 +569,10 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
}
int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
uint flags, struct sk_buff_head *pktq)
uint flags, struct sk_buff_head *pktq, uint totlen)
{
struct sk_buff *glom_skb;
struct sk_buff *skb;
uint width;
int err = 0;
@ -582,7 +584,22 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
if (err)
goto done;
err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, pktq);
if (pktq->qlen == 1)
err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, pktq->next);
else if (!sdiodev->sg_support) {
glom_skb = brcmu_pkt_buf_get_skb(totlen);
if (!glom_skb)
return -ENOMEM;
err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, glom_skb);
if (err)
goto done;
skb_queue_walk(pktq, skb) {
memcpy(skb->data, glom_skb->data, skb->len);
skb_pull(glom_skb, skb->len);
}
} else
err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, pktq);
done:
return err;

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

@ -1392,7 +1392,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
sdio_claim_host(bus->sdiodev->func[1]);
errcode = brcmf_sdcard_recv_chain(bus->sdiodev,
bus->sdiodev->sbwad,
SDIO_FUNC_2, F2SYNC, &bus->glom);
SDIO_FUNC_2, F2SYNC, &bus->glom, dlen);
sdio_release_host(bus->sdiodev->func[1]);
bus->sdcnt.f2rxdata++;

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

@ -225,7 +225,7 @@ brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
uint flags, u8 *buf, uint nbytes);
extern int
brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
uint flags, struct sk_buff_head *pktq);
uint flags, struct sk_buff_head *pktq, uint totlen);
/* Flags bits */