Commit 5f38b683 authored by Arend van Spriel's avatar Arend van Spriel Committed by John W. Linville

brcmfmac: handle firmware signals requesting for packets

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: default avatarPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: default avatarHante Meuleman <meuleman@broadcom.com>
Signed-off-by: default avatarArend van Spriel <arend@broadcom.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 33753d47
...@@ -146,6 +146,8 @@ struct brcmf_fws_stats { ...@@ -146,6 +146,8 @@ struct brcmf_fws_stats {
u32 mac_update_failed; u32 mac_update_failed;
u32 mac_ps_update_failed; u32 mac_ps_update_failed;
u32 if_update_failed; u32 if_update_failed;
u32 packet_request_failed;
u32 credit_request_failed;
u32 rollback_success; u32 rollback_success;
u32 rollback_failed; u32 rollback_failed;
u32 delayq_full_error; u32 delayq_full_error;
......
...@@ -959,6 +959,29 @@ static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws, ...@@ -959,6 +959,29 @@ static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
return ret; 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, static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
u8 fifo, u8 credits) u8 fifo, u8 credits)
{ {
...@@ -1366,8 +1389,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, ...@@ -1366,8 +1389,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
break; break;
switch (type) { 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_HOST_REORDER_RXPKTS:
case BRCMF_FWS_TYPE_COMP_TXSTATUS: case BRCMF_FWS_TYPE_COMP_TXSTATUS:
break; break;
...@@ -1383,6 +1404,10 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, ...@@ -1383,6 +1404,10 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
case BRCMF_FWS_TYPE_INTERFACE_CLOSE: case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
brcmf_fws_interface_state_indicate(fws, type, data); brcmf_fws_interface_state_indicate(fws, type, data);
break; 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: case BRCMF_FWS_TYPE_TXSTATUS:
brcmf_fws_txstatus_indicate(fws, data); brcmf_fws_txstatus_indicate(fws, data);
break; break;
......
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