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brcmfmac: handle firmware signalling destination entry state

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Firmware can signal whether the host driver may sent packets for
a specific destination or interface. This can happen when a
destination is sleeping or when going off-channel.

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 10:57:40 +02:00 committed by John W. Linville
parent a2ffc5668e
commit 33753d47d3
3 changed files with 79 additions and 7 deletions
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4
drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
View file

@ -143,6 +143,8 @@ ssize_t brcmf_debugfs_fws_stats_read(struct file *f, char __user *data,
"tlv_parse_failed: %u\n"
"tlv_invalid_type: %u\n"
"mac_update_fails: %u\n"
"ps_update_fails: %u\n"
"if_update_fails: %u\n"
"pkt2bus: %u\n"
"generic_error: %u\n"
"rollback_success: %u\n"
@ -161,6 +163,8 @@ ssize_t brcmf_debugfs_fws_stats_read(struct file *f, char __user *data,
fwstats->tlv_parse_failed,
fwstats->tlv_invalid_type,
fwstats->mac_update_failed,
fwstats->mac_ps_update_failed,
fwstats->if_update_failed,
fwstats->pkt2bus,
fwstats->generic_error,
fwstats->rollback_success,

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

@ -144,6 +144,8 @@ struct brcmf_fws_stats {
u32 fifo_credits_back[6];
u32 generic_error;
u32 mac_update_failed;
u32 mac_ps_update_failed;
u32 if_update_failed;
u32 rollback_success;
u32 rollback_failed;
u32 delayq_full_error;

80
drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
View file

@ -896,6 +896,69 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
return 0;
}
static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
u8 type, u8 *data)
{
struct brcmf_fws_mac_descriptor *entry;
u8 mac_handle;
int i;
mac_handle = data[0];
entry = &fws->desc.nodes[mac_handle & 0x1F];
if (!entry->occupied) {
fws->stats.mac_ps_update_failed++;
return -ESRCH;
}
/* a state update should wipe old credits? */
entry->requested_credit = 0;
if (type == BRCMF_FWS_TYPE_MAC_OPEN) {
entry->state = BRCMF_FWS_STATE_OPEN;
} else {
entry->state = BRCMF_FWS_STATE_CLOSE;
for (i = BRCMF_FWS_FIFO_AC_BE; i < NL80211_NUM_ACS; i++)
brcmf_fws_tim_update(fws, entry, i);
}
return 0;
}
static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
u8 type, u8 *data)
{
struct brcmf_fws_mac_descriptor *entry;
u8 ifidx;
int ret;
ifidx = data[0];
brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
if (ifidx >= BRCMF_MAX_IFS) {
ret = -ERANGE;
goto fail;
}
entry = &fws->desc.iface[ifidx];
if (!entry->occupied) {
ret = -ESRCH;
goto fail;
}
switch (type) {
case BRCMF_FWS_TYPE_INTERFACE_OPEN:
entry->state = BRCMF_FWS_STATE_OPEN;
return 0;
case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
entry->state = BRCMF_FWS_STATE_CLOSE;
return 0;
default:
ret = -EINVAL;
break;
}
fail:
fws->stats.if_update_failed++;
return ret;
}
static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
u8 fifo, u8 credits)
{
@ -1111,8 +1174,6 @@ brcmf_fws_txstatus_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
struct sk_buff *skb;
struct brcmf_fws_mac_descriptor *entry = NULL;
fws->stats.txs_indicate++;
brcmf_dbg(TRACE, "status: flags=0x%X, hslot=%d\n",
flags, hslot);
@ -1305,11 +1366,7 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
break;
switch (type) {
case BRCMF_FWS_TYPE_MAC_OPEN:
case BRCMF_FWS_TYPE_MAC_CLOSE:
case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT:
case BRCMF_FWS_TYPE_INTERFACE_OPEN:
case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET:
case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS:
case BRCMF_FWS_TYPE_COMP_TXSTATUS:
@ -1318,6 +1375,14 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
case BRCMF_FWS_TYPE_MACDESC_DEL:
brcmf_fws_macdesc_indicate(fws, type, data);
break;
case BRCMF_FWS_TYPE_MAC_OPEN:
case BRCMF_FWS_TYPE_MAC_CLOSE:
brcmf_fws_macdesc_state_indicate(fws, type, data);
break;
case BRCMF_FWS_TYPE_INTERFACE_OPEN:
case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
brcmf_fws_interface_state_indicate(fws, type, data);
break;
case BRCMF_FWS_TYPE_TXSTATUS:
brcmf_fws_txstatus_indicate(fws, data);
break;
@ -1779,7 +1844,8 @@ int brcmf_fws_init(struct brcmf_pub *drvr)
/* enable firmware signalling if fcmode active */
if (drvr->fws->fcmode != BRCMF_FWS_FCMODE_NONE)
tlv |= BRCMF_FWS_FLAGS_XONXOFF_SIGNALS |
BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS;
BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS |
BRCMF_FWS_FLAGS_HOST_PROPTXSTATUS_ACTIVE;
rc = brcmf_fil_iovar_int_set(drvr->iflist[0], "tlv", tlv);
if (rc < 0) {