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brcmfmac: handle firmware signals requesting for packets

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The firmware can request the host driver for packets, by sending
either the MAC_REQUEST_CREDIT or the MAC_REQUEST_PACKET primitive.
This patch adds handling of these primitives.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@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 2013-04-05 10:57:41 +02:00 committed by John W. Linville
parent 33753d47d3
commit 5f38b68360
2 changed files with 29 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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

@ -146,6 +146,8 @@ struct brcmf_fws_stats {
u32 mac_update_failed;
u32 mac_ps_update_failed;
u32 if_update_failed;
u32 packet_request_failed;
u32 credit_request_failed;
u32 rollback_success;
u32 rollback_failed;
u32 delayq_full_error;

29
drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
View File

@ -959,6 +959,29 @@ fail:
return ret;
}
static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
u8 *data)
{
struct brcmf_fws_mac_descriptor *entry;
entry = &fws->desc.nodes[data[1] & 0x1F];
if (!entry->occupied) {
if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
fws->stats.credit_request_failed++;
else
fws->stats.packet_request_failed++;
return -ESRCH;
}
if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
entry->requested_credit = data[0];
else
entry->requested_packet = data[0];
entry->ac_bitmap = data[2];
return 0;
}
static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
u8 fifo, u8 credits)
{
@ -1366,8 +1389,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
break;
switch (type) {
case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT:
case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET:
case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS:
case BRCMF_FWS_TYPE_COMP_TXSTATUS:
break;
@ -1383,6 +1404,10 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
brcmf_fws_interface_state_indicate(fws, type, data);
break;
case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT:
case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET:
brcmf_fws_request_indicate(fws, type, data);
break;
case BRCMF_FWS_TYPE_TXSTATUS:
brcmf_fws_txstatus_indicate(fws, data);
break;