brcmfmac: rework rx path bus interface

The brcmfmac has common and bus specific part. The rx function api
was using sk_buff_head. Changed to sk_buff instead.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@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>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
index f7c1985..200ee9b 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
@@ -136,7 +136,7 @@ extern bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
                         struct sk_buff *pkt, int prec);
 
 /* Receive frame for delivery to OS.  Callee disposes of rxp. */
-extern void brcmf_rx_frames(struct device *dev, struct sk_buff_head *rxlist);
+extern void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp);
 
 /* Indication from bus module regarding presence/insertion of dongle. */
 extern int brcmf_attach(uint bus_hdrlen, struct device *dev);

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index e067aec..42bf19a 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -509,9 +509,8 @@ netif_rx:
        }
 }
 
-void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
+void brcmf_rx_frame(struct device *dev, struct sk_buff *skb)
 {
-       struct sk_buff *skb, *pnext;
        struct brcmf_if *ifp;
        struct brcmf_bus *bus_if = dev_get_drvdata(dev);
        struct brcmf_pub *drvr = bus_if->drvr;
@@ -519,29 +518,24 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
        u8 ifidx;
        int ret;
 
-       brcmf_dbg(DATA, "Enter: %s: count=%u\n", dev_name(dev),
-                 skb_queue_len(skb_list));
+       brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
 
-       skb_queue_walk_safe(skb_list, skb, pnext) {
-               skb_unlink(skb, skb_list);
-
-               /* process and remove protocol-specific header */
-               ret = brcmf_proto_hdrpull(drvr, true, &ifidx, skb);
-               ifp = drvr->iflist[ifidx];
-
-               if (ret || !ifp || !ifp->ndev) {
-                       if ((ret != -ENODATA) && ifp)
-                               ifp->stats.rx_errors++;
-                       brcmu_pkt_buf_free_skb(skb);
-                       continue;
-               }
+       /* process and remove protocol-specific header */
+       ret = brcmf_proto_hdrpull(drvr, true, &ifidx, skb);
+       ifp = drvr->iflist[ifidx];
 
-               rd = (struct brcmf_skb_reorder_data *)skb->cb;
-               if (rd->reorder)
-                       brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
-               else
-                       brcmf_netif_rx(ifp, skb);
+       if (ret || !ifp || !ifp->ndev) {
+               if ((ret != -ENODATA) && ifp)
+                       ifp->stats.rx_errors++;
+               brcmu_pkt_buf_free_skb(skb);
+               return;
        }
+
+       rd = (struct brcmf_skb_reorder_data *)skb->cb;
+       if (rd->reorder)
+               brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
+       else
+               brcmf_netif_rx(ifp, skb);
 }
 
 void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 6e72b73..67f05db 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -1492,13 +1492,12 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
                                           bus->glom.qlen, pfirst, pfirst->data,
                                           pfirst->len, pfirst->next,
                                           pfirst->prev);
+                       skb_unlink(pfirst, &bus->glom);
+                       brcmf_rx_frame(bus->sdiodev->dev, pfirst);
+                       bus->sdcnt.rxglompkts++;
                }
-               /* sent any remaining packets up */
-               if (bus->glom.qlen)
-                       brcmf_rx_frames(bus->sdiodev->dev, &bus->glom);
 
                bus->sdcnt.rxglomframes++;
-               bus->sdcnt.rxglompkts += bus->glom.qlen;
        }
        return num;
 }
@@ -1643,7 +1642,6 @@ static void brcmf_pad(struct brcmf_sdio *bus, u16 *pad, u16 *rdlen)
 static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 {
        struct sk_buff *pkt;            /* Packet for event or data frames */
-       struct sk_buff_head pktlist;    /* needed for bus interface */
        u16 pad;                /* Number of pad bytes to read */
        uint rxleft = 0;        /* Remaining number of frames allowed */
        int ret;                /* Return code from calls */
@@ -1845,9 +1843,7 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
                        continue;
                }
 
-               skb_queue_head_init(&pktlist);
-               skb_queue_tail(&pktlist, pkt);
-               brcmf_rx_frames(bus->sdiodev->dev, &pktlist);
+               brcmf_rx_frame(bus->sdiodev->dev, pkt);
        }
 
        rxcount = maxframes - rxleft;

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
index 39e01a7..bf6758d 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -435,7 +435,6 @@ static void brcmf_usb_rx_complete(struct urb *urb)
        struct brcmf_usbreq  *req = (struct brcmf_usbreq *)urb->context;
        struct brcmf_usbdev_info *devinfo = req->devinfo;
        struct sk_buff *skb;
-       struct sk_buff_head skbq;
 
        brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
        brcmf_usb_del_fromq(devinfo, req);
@@ -450,10 +449,8 @@ static void brcmf_usb_rx_complete(struct urb *urb)
        }
 
        if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
-               skb_queue_head_init(&skbq);
-               skb_queue_tail(&skbq, skb);
                skb_put(skb, urb->actual_length);
-               brcmf_rx_frames(devinfo->dev, &skbq);
+               brcmf_rx_frame(devinfo->dev, skb);
                brcmf_usb_rx_refill(devinfo, req);
        } else {
                brcmu_pkt_buf_free_skb(skb);