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- From c988b78244df8216902e20de536434e2f474a37e Mon Sep 17 00:00:00 2001
- From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
- Date: Fri, 8 Feb 2019 15:24:39 +0100
- Subject: [PATCH] brcmfmac: print firmware reported ring status errors
- MIME-Version: 1.0
- Content-Type: text/plain; charset=UTF-8
- Content-Transfer-Encoding: 8bit
- 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@milecki.pl>
- Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
- ---
- .../broadcom/brcm80211/brcmfmac/msgbuf.c | 25 +++++++++++++++++++
- 1 file changed, 25 insertions(+)
- --- 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;
- @@ -1178,6 +1186,19 @@ brcmf_msgbuf_process_rx_complete(struct
- 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,
- @@ -1239,6 +1260,10 @@ static void brcmf_msgbuf_process_msgtype
-
- 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);
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