From: Cristian Marussi <cristian.marussi@arm.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, f.fainelli@gmail.com, vincent.guittot@linaro.org, peng.fan@oss.nxp.com, michal.simek@amd.com, quic_sibis@quicinc.com, quic_nkela@quicinc.com, Cristian Marussi <cristian.marussi@arm.com> Subject: [PATCH 2/4] firmware: arm_scmi: Add message dump traces for bad and unexpected replies Date: Wed, 28 Feb 2024 19:32:36 +0000 [thread overview] Message-ID: <20240228193238.2102157-3-cristian.marussi@arm.com> (raw) In-Reply-To: <20240228193238.2102157-1-cristian.marussi@arm.com> Use trace_scmi_msg_dump also to account for late-timed-out, out-of-order and unexpected replies. Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- drivers/firmware/arm_scmi/driver.c | 36 +++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 34d77802c990..a3182199f123 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -822,6 +822,13 @@ scmi_xfer_command_acquire(struct scmi_chan_info *cinfo, u32 msg_hdr) "Message for %d type %d is not expected!\n", xfer_id, msg_type); spin_unlock_irqrestore(&minfo->xfer_lock, flags); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), + !msg_type ? "_!RESP" : "_!DLYD", + xfer_id, 0, NULL, 0); + return xfer; } refcount_inc(&xfer->users); @@ -846,6 +853,13 @@ scmi_xfer_command_acquire(struct scmi_chan_info *cinfo, u32 msg_hdr) dev_err(cinfo->dev, "Invalid message type:%d for %d - HDR:0x%X state:%d\n", msg_type, xfer_id, msg_hdr, xfer->state); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), + !msg_type ? "_!RESP" : "_!DLYD", + xfer_id, 0, NULL, 0); + /* On error the refcount incremented above has to be dropped */ __scmi_xfer_put(minfo, xfer); xfer = ERR_PTR(-EINVAL); @@ -882,6 +896,12 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo, if (IS_ERR(xfer)) { dev_err(dev, "failed to get free message slot (%ld)\n", PTR_ERR(xfer)); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), "_!NOTI", + MSG_XTRACT_TOKEN(msg_hdr), 0, NULL, 0); + scmi_clear_channel(info, cinfo); return; } @@ -923,10 +943,18 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo, xfer = scmi_xfer_command_acquire(cinfo, msg_hdr); if (IS_ERR(xfer)) { + u8 msg_type = MSG_XTRACT_TYPE(msg_hdr); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), + !msg_type ? "_!RESP" : "_!DLYD", + MSG_XTRACT_TOKEN(msg_hdr), 0, NULL, 0); + if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT)) scmi_raw_error_report(info->raw, cinfo, msg_hdr, priv); - if (MSG_XTRACT_TYPE(msg_hdr) == MSG_TYPE_DELAYED_RESP) + if (msg_type == MSG_TYPE_DELAYED_RESP) scmi_clear_channel(info, cinfo); return; } @@ -990,6 +1018,7 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo, void scmi_rx_callback(struct scmi_chan_info *cinfo, u32 msg_hdr, void *priv) { u8 msg_type = MSG_XTRACT_TYPE(msg_hdr); + struct scmi_info *info = handle_to_scmi_info(cinfo->handle); switch (msg_type) { case MSG_TYPE_NOTIFICATION: @@ -1001,6 +1030,11 @@ void scmi_rx_callback(struct scmi_chan_info *cinfo, u32 msg_hdr, void *priv) break; default: WARN_ONCE(1, "received unknown msg_type:%d\n", msg_type); + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), "_!UNKN", + MSG_XTRACT_TOKEN(msg_hdr), 0, NULL, 0); + break; } } -- 2.43.0
WARNING: multiple messages have this Message-ID (diff)
From: Cristian Marussi <cristian.marussi@arm.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, f.fainelli@gmail.com, vincent.guittot@linaro.org, peng.fan@oss.nxp.com, michal.simek@amd.com, quic_sibis@quicinc.com, quic_nkela@quicinc.com, Cristian Marussi <cristian.marussi@arm.com> Subject: [PATCH 2/4] firmware: arm_scmi: Add message dump traces for bad and unexpected replies Date: Wed, 28 Feb 2024 19:32:36 +0000 [thread overview] Message-ID: <20240228193238.2102157-3-cristian.marussi@arm.com> (raw) In-Reply-To: <20240228193238.2102157-1-cristian.marussi@arm.com> Use trace_scmi_msg_dump also to account for late-timed-out, out-of-order and unexpected replies. Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- drivers/firmware/arm_scmi/driver.c | 36 +++++++++++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 34d77802c990..a3182199f123 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -822,6 +822,13 @@ scmi_xfer_command_acquire(struct scmi_chan_info *cinfo, u32 msg_hdr) "Message for %d type %d is not expected!\n", xfer_id, msg_type); spin_unlock_irqrestore(&minfo->xfer_lock, flags); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), + !msg_type ? "_!RESP" : "_!DLYD", + xfer_id, 0, NULL, 0); + return xfer; } refcount_inc(&xfer->users); @@ -846,6 +853,13 @@ scmi_xfer_command_acquire(struct scmi_chan_info *cinfo, u32 msg_hdr) dev_err(cinfo->dev, "Invalid message type:%d for %d - HDR:0x%X state:%d\n", msg_type, xfer_id, msg_hdr, xfer->state); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), + !msg_type ? "_!RESP" : "_!DLYD", + xfer_id, 0, NULL, 0); + /* On error the refcount incremented above has to be dropped */ __scmi_xfer_put(minfo, xfer); xfer = ERR_PTR(-EINVAL); @@ -882,6 +896,12 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo, if (IS_ERR(xfer)) { dev_err(dev, "failed to get free message slot (%ld)\n", PTR_ERR(xfer)); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), "_!NOTI", + MSG_XTRACT_TOKEN(msg_hdr), 0, NULL, 0); + scmi_clear_channel(info, cinfo); return; } @@ -923,10 +943,18 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo, xfer = scmi_xfer_command_acquire(cinfo, msg_hdr); if (IS_ERR(xfer)) { + u8 msg_type = MSG_XTRACT_TYPE(msg_hdr); + + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), + !msg_type ? "_!RESP" : "_!DLYD", + MSG_XTRACT_TOKEN(msg_hdr), 0, NULL, 0); + if (IS_ENABLED(CONFIG_ARM_SCMI_RAW_MODE_SUPPORT)) scmi_raw_error_report(info->raw, cinfo, msg_hdr, priv); - if (MSG_XTRACT_TYPE(msg_hdr) == MSG_TYPE_DELAYED_RESP) + if (msg_type == MSG_TYPE_DELAYED_RESP) scmi_clear_channel(info, cinfo); return; } @@ -990,6 +1018,7 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo, void scmi_rx_callback(struct scmi_chan_info *cinfo, u32 msg_hdr, void *priv) { u8 msg_type = MSG_XTRACT_TYPE(msg_hdr); + struct scmi_info *info = handle_to_scmi_info(cinfo->handle); switch (msg_type) { case MSG_TYPE_NOTIFICATION: @@ -1001,6 +1030,11 @@ void scmi_rx_callback(struct scmi_chan_info *cinfo, u32 msg_hdr, void *priv) break; default: WARN_ONCE(1, "received unknown msg_type:%d\n", msg_type); + trace_scmi_msg_dump(info->id, cinfo->id, + MSG_XTRACT_PROT_ID(msg_hdr), + MSG_XTRACT_ID(msg_hdr), "_!UNKN", + MSG_XTRACT_TOKEN(msg_hdr), 0, NULL, 0); + break; } } -- 2.43.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-02-28 19:33 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-02-28 19:32 [PATCH 0/4] SCMI misc small-updates Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi 2024-02-28 19:32 ` [PATCH 1/4] include: trace: Widen the tag buffer in trace_scmi_dump_msg Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi [this message] 2024-02-28 19:32 ` [PATCH 2/4] firmware: arm_scmi: Add message dump traces for bad and unexpected replies Cristian Marussi 2024-02-28 19:32 ` [PATCH 3/4] firmware: arm_scmi: Simplify scmi_devm_notifier_unregister Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi 2024-02-28 19:32 ` [PATCH 4/4] firmware: arm_scmi: Use dev_err_probe to bail out Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi
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