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@xxxxxxxxxxxx>
Reviewed-by: Hante Meuleman <meuleman@xxxxxxxxxxxx>
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
---
drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h | 2 ++
drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c | 29 ++++++++++++++++++--
2 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
index e105889..d259ae5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
@@ -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;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 57cbfb6..619fff3 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -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;
--
1.7.10.4
--
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