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brcmfmac: revise handling events in receive path

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commit 9c349892cc upstream.

Move event handling out of brcmf_netif_rx() avoiding the need
to pass a flag. This flag is only ever true for USB hosts as
other interface use separate brcmf_rx_event() function.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
[bwh: Backported to 4.4 as dependency of commit a4176ec356
 "brcmfmac: add subtype check for event handling in data path"
 - Adjust filenames, context]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arend van Spriel
2016-04-11 11:35:27 +02:00
committed by Greg Kroah-Hartman
parent 5f4688a15c
commit 8c12de9626
4 changed files with 19 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@@ -214,7 +214,7 @@ 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. */
void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp, bool handle_evnt);
void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp, bool handle_event);
/* Receive async event packet from firmware. Callee disposes of rxp. */
void brcmf_rx_event(struct device *dev, struct sk_buff *rxp);

32
drivers/net/wireless/brcm80211/brcmfmac/core.c
View File

@@ -301,18 +301,11 @@ void brcmf_txflowblock(struct device *dev, bool state)
brcmf_fws_bus_blocked(drvr, state);
}
void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb,
bool handle_event)
void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb)
{
skb->protocol = eth_type_trans(skb, ifp->ndev);
if (skb->pkt_type == PACKET_MULTICAST)
ifp->stats.multicast++;
/* Process special event packets */
if (handle_event)
brcmf_fweh_process_skb(ifp->drvr, skb);
if (!(ifp->ndev->flags & IFF_UP)) {
brcmu_pkt_buf_free_skb(skb);
return;
@@ -372,7 +365,7 @@ static void brcmf_rxreorder_process_info(struct brcmf_if *ifp, u8 *reorder_data,
/* validate flags and flow id */
if (flags == 0xFF) {
brcmf_err("invalid flags...so ignore this packet\n");
brcmf_netif_rx(ifp, pkt, false);
brcmf_netif_rx(ifp, pkt);
return;
}
@@ -384,7 +377,7 @@ static void brcmf_rxreorder_process_info(struct brcmf_if *ifp, u8 *reorder_data,
if (rfi == NULL) {
brcmf_dbg(INFO, "received flags to cleanup, but no flow (%d) yet\n",
flow_id);
brcmf_netif_rx(ifp, pkt, false);
brcmf_netif_rx(ifp, pkt);
return;
}
@@ -409,7 +402,7 @@ static void brcmf_rxreorder_process_info(struct brcmf_if *ifp, u8 *reorder_data,
rfi = kzalloc(buf_size, GFP_ATOMIC);
if (rfi == NULL) {
brcmf_err("failed to alloc buffer\n");
brcmf_netif_rx(ifp, pkt, false);
brcmf_netif_rx(ifp, pkt);
return;
}
@@ -523,11 +516,11 @@ static void brcmf_rxreorder_process_info(struct brcmf_if *ifp, u8 *reorder_data,
netif_rx:
skb_queue_walk_safe(&reorder_list, pkt, pnext) {
__skb_unlink(pkt, &reorder_list);
brcmf_netif_rx(ifp, pkt, false);
brcmf_netif_rx(ifp, pkt);
}
}
void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_evnt)
void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event)
{
struct brcmf_if *ifp;
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
@@ -547,11 +540,18 @@ void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_evnt)
return;
}
skb->protocol = eth_type_trans(skb, ifp->ndev);
rd = (struct brcmf_skb_reorder_data *)skb->cb;
if (rd->reorder)
if (rd->reorder) {
brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
else
brcmf_netif_rx(ifp, skb, handle_evnt);
} else {
/* Process special event packets */
if (handle_event)
brcmf_fweh_process_skb(ifp->drvr, skb);
brcmf_netif_rx(ifp, skb);
}
}
void brcmf_rx_event(struct device *dev, struct sk_buff *skb)

3
drivers/net/wireless/brcm80211/brcmfmac/core.h
View File

@@ -215,8 +215,7 @@ int brcmf_get_next_free_bsscfgidx(struct brcmf_pub *drvr);
void brcmf_txflowblock_if(struct brcmf_if *ifp,
enum brcmf_netif_stop_reason reason, bool state);
void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success);
void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb,
bool handle_event);
void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb);
void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on);
#endif /* BRCMFMAC_CORE_H */

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

@@ -1155,7 +1155,7 @@ brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf)
brcmu_pkt_buf_free_skb(skb);
return;
}
brcmf_netif_rx(ifp, skb, false);
brcmf_netif_rx(ifp, skb);
}