From: Rafał Miłecki <rafal@xxxxxxxxxx>
Firmware is capable of reporting ring status. It's used e.g. to signal
some problem with a specific ring setup. This patch adds support for
printing ring & error number which may be useful for debugging setup
issues.
Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
---
.../broadcom/brcm80211/brcmfmac/msgbuf.c | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
index 4e8397a0cbc8..bbef2d41cb3b 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
@@ -134,6 +134,14 @@ struct msgbuf_completion_hdr {
__le16 flow_ring_id;
};
+/* Data struct for the MSGBUF_TYPE_RING_STATUS */
+struct msgbuf_ring_status {
+ struct msgbuf_common_hdr msg;
+ struct msgbuf_completion_hdr compl_hdr;
+ __le16 write_idx;
+ __le32 rsvd0[5];
+};
+
struct msgbuf_rx_event {
struct msgbuf_common_hdr msg;
struct msgbuf_completion_hdr compl_hdr;
@@ -1180,6 +1188,19 @@ brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf)
brcmf_netif_rx(ifp, skb);
}
+static void brcmf_msgbuf_process_ring_status(struct brcmf_msgbuf *msgbuf,
+ void *buf)
+{
+ struct msgbuf_ring_status *ring_status = buf;
+ int err;
+
+ err = le16_to_cpu(ring_status->compl_hdr.status);
+ if (err) {
+ int ring = le16_to_cpu(ring_status->compl_hdr.flow_ring_id);
+
+ brcmf_err("Firmware reported ring %d error: %d\n", ring, err);
+ }
+}
static void
brcmf_msgbuf_process_flow_ring_create_response(struct brcmf_msgbuf *msgbuf,
@@ -1241,6 +1262,10 @@ static void brcmf_msgbuf_process_msgtype(struct brcmf_msgbuf *msgbuf, void *buf)
msg = (struct msgbuf_common_hdr *)buf;
switch (msg->msgtype) {
+ case MSGBUF_TYPE_RING_STATUS:
+ brcmf_dbg(MSGBUF, "MSGBUF_TYPE_RING_STATUS\n");
+ brcmf_msgbuf_process_ring_status(msgbuf, buf);
+ break;
case MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT:
brcmf_dbg(MSGBUF, "MSGBUF_TYPE_FLOW_RING_CREATE_CMPLT\n");
brcmf_msgbuf_process_flow_ring_create_response(msgbuf, buf);
--
2.20.1
