diff options
author | Michal Kazior <michal.kazior@tieto.com> | 2015-01-24 10:14:47 (GMT) |
---|---|---|
committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2015-01-27 13:50:50 (GMT) |
commit | 04de6c6ce612ad159d44572b6ed566e57ecefcab (patch) | |
tree | 89fac868dea93ae40d468a20130cc982ff5e28bd /drivers/net/wireless/ath/ath10k | |
parent | 6d48161678dcbeb1ac1736aaf11d10c55ed9a314 (diff) | |
download | linux-04de6c6ce612ad159d44572b6ed566e57ecefcab.tar.xz |
ath10k: implement diag data container event
Some firmware revisions may report this event as
part of their diagnostics.
This avoids `unknown event` warnings and adds
tracing for the event.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k')
-rw-r--r-- | drivers/net/wireless/ath/ath10k/trace.h | 41 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ath10k/wmi-tlv.c | 68 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ath10k/wmi-tlv.h | 19 |
3 files changed, 128 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/trace.h b/drivers/net/wireless/ath/ath10k/trace.h index b289378..1c541f7 100644 --- a/drivers/net/wireless/ath/ath10k/trace.h +++ b/drivers/net/wireless/ath/ath10k/trace.h @@ -453,6 +453,47 @@ TRACE_EVENT(ath10k_htt_rx_desc, ) ); +TRACE_EVENT(ath10k_wmi_diag_container, + TP_PROTO(struct ath10k *ar, + u8 type, + u32 timestamp, + u32 code, + u16 len, + const void *data), + + TP_ARGS(ar, type, timestamp, code, len, data), + + TP_STRUCT__entry( + __string(device, dev_name(ar->dev)) + __string(driver, dev_driver_string(ar->dev)) + __field(u8, type) + __field(u32, timestamp) + __field(u32, code) + __field(u16, len) + __dynamic_array(u8, data, len) + ), + + TP_fast_assign( + __assign_str(device, dev_name(ar->dev)); + __assign_str(driver, dev_driver_string(ar->dev)); + __entry->type = type; + __entry->timestamp = timestamp; + __entry->code = code; + __entry->len = len; + memcpy(__get_dynamic_array(data), data, len); + ), + + TP_printk( + "%s %s diag container type %hhu timestamp %u code %u len %d", + __get_str(driver), + __get_str(device), + __entry->type, + __entry->timestamp, + __entry->code, + __entry->len + ) +); + #endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/ /* we don't want to use include/trace/events */ diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 6f34fc7..56cd51d 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -60,6 +60,8 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = { = { .min_len = sizeof(struct wmi_tlv_rdy_ev) }, [WMI_TLV_TAG_STRUCT_OFFLOAD_BCN_TX_STATUS_EVENT] = { .min_len = sizeof(struct wmi_tlv_bcn_tx_status_ev) }, + [WMI_TLV_TAG_STRUCT_DIAG_DATA_CONTAINER_EVENT] + = { .min_len = sizeof(struct wmi_tlv_diag_data_ev) }, }; static int @@ -203,6 +205,69 @@ static int ath10k_wmi_tlv_event_bcn_tx_status(struct ath10k *ar, return 0; } +static int ath10k_wmi_tlv_event_diag_data(struct ath10k *ar, + struct sk_buff *skb) +{ + const void **tb; + const struct wmi_tlv_diag_data_ev *ev; + const struct wmi_tlv_diag_item *item; + const void *data; + int ret, num_items, len; + + tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC); + if (IS_ERR(tb)) { + ret = PTR_ERR(tb); + ath10k_warn(ar, "failed to parse tlv: %d\n", ret); + return ret; + } + + ev = tb[WMI_TLV_TAG_STRUCT_DIAG_DATA_CONTAINER_EVENT]; + data = tb[WMI_TLV_TAG_ARRAY_BYTE]; + if (!ev || !data) { + kfree(tb); + return -EPROTO; + } + + num_items = __le32_to_cpu(ev->num_items); + len = ath10k_wmi_tlv_len(data); + + while (num_items--) { + if (len == 0) + break; + if (len < sizeof(*item)) { + ath10k_warn(ar, "failed to parse diag data: can't fit item header\n"); + break; + } + + item = data; + + if (len < sizeof(*item) + __le16_to_cpu(item->len)) { + ath10k_warn(ar, "failed to parse diag data: item is too long\n"); + break; + } + + trace_ath10k_wmi_diag_container(ar, + item->type, + __le32_to_cpu(item->timestamp), + __le32_to_cpu(item->code), + __le16_to_cpu(item->len), + item->payload); + + len -= sizeof(*item); + len -= roundup(__le16_to_cpu(item->len), 4); + + data += sizeof(*item); + data += roundup(__le16_to_cpu(item->len), 4); + } + + if (num_items != -1 || len != 0) + ath10k_warn(ar, "failed to parse diag data event: num_items %d len %d\n", + num_items, len); + + kfree(tb); + return 0; +} + /***********/ /* TLV ops */ /***********/ @@ -318,6 +383,9 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb) case WMI_TLV_OFFLOAD_BCN_TX_STATUS_EVENTID: ath10k_wmi_tlv_event_bcn_tx_status(ar, skb); break; + case WMI_TLV_DIAG_DATA_CONTAINER_EVENTID: + ath10k_wmi_tlv_event_diag_data(ar, skb); + break; default: ath10k_warn(ar, "Unknown eventid: %d\n", id); break; diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h index eb02290..87db762 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h @@ -1409,6 +1409,25 @@ struct wmi_tlv_p2p_go_bcn_ie { __le32 ie_len; } __packed; +enum wmi_tlv_diag_item_type { + WMI_TLV_DIAG_ITEM_TYPE_FW_EVENT, + WMI_TLV_DIAG_ITEM_TYPE_FW_LOG, + WMI_TLV_DIAG_ITEM_TYPE_FW_DEBUG_MSG, +}; + +struct wmi_tlv_diag_item { + u8 type; + u8 reserved; + __le16 len; + __le32 timestamp; + __le32 code; + u8 payload[0]; +} __packed; + +struct wmi_tlv_diag_data_ev { + __le32 num_items; +} __packed; + void ath10k_wmi_tlv_attach(struct ath10k *ar); #endif |