diff mbox series

[net-next,1/6] net: ipa: print channel/event ring number on error

Message ID 20201119224929.23819-2-elder@linaro.org (mailing list archive)
State Accepted
Commit f8d3bdd561a7c95269a8f908d82249e41badc2aa
Delegated to: Netdev Maintainers
Headers show
Series net: ipa: add a driver shutdown callback | expand

Checks

Context Check Description
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for net-next
netdev/subject_prefix success Link
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 147 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Alex Elder Nov. 19, 2020, 10:49 p.m. UTC 
When a GSI command is used to change the state of a channel or event
ring we check the state before and after the command to ensure it is
as expected.  If not, we print an error message, but it does not
include the channel or event ring id, and it easily can.  Add the
channel or event ring id to these error messages.

Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/net/ipa/gsi.c | 54 +++++++++++++++++++++++++------------------
 1 file changed, 32 insertions(+), 22 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c
index 55151960a6985..2bc513c663396 100644
--- a/drivers/net/ipa/gsi.c
+++ b/drivers/net/ipa/gsi.c
@@ -365,15 +365,15 @@  static int gsi_evt_ring_alloc_command(struct gsi *gsi, u32 evt_ring_id)
 	/* Get initial event ring state */
 	evt_ring->state = gsi_evt_ring_state(gsi, evt_ring_id);
 	if (evt_ring->state != GSI_EVT_RING_STATE_NOT_ALLOCATED) {
-		dev_err(gsi->dev, "bad event ring state %u before alloc\n",
-			evt_ring->state);
+		dev_err(gsi->dev, "event ring %u bad state %u before alloc\n",
+			evt_ring_id, evt_ring->state);
 		return -EINVAL;
 	}
 
 	ret = evt_ring_command(gsi, evt_ring_id, GSI_EVT_ALLOCATE);
 	if (!ret && evt_ring->state != GSI_EVT_RING_STATE_ALLOCATED) {
-		dev_err(gsi->dev, "bad event ring state %u after alloc\n",
-			evt_ring->state);
+		dev_err(gsi->dev, "event ring %u bad state %u after alloc\n",
+			evt_ring_id, evt_ring->state);
 		ret = -EIO;
 	}
 
@@ -389,15 +389,15 @@  static void gsi_evt_ring_reset_command(struct gsi *gsi, u32 evt_ring_id)
 
 	if (state != GSI_EVT_RING_STATE_ALLOCATED &&
 	    state != GSI_EVT_RING_STATE_ERROR) {
-		dev_err(gsi->dev, "bad event ring state %u before reset\n",
-			evt_ring->state);
+		dev_err(gsi->dev, "event ring %u bad state %u before reset\n",
+			evt_ring_id, evt_ring->state);
 		return;
 	}
 
 	ret = evt_ring_command(gsi, evt_ring_id, GSI_EVT_RESET);
 	if (!ret && evt_ring->state != GSI_EVT_RING_STATE_ALLOCATED)
-		dev_err(gsi->dev, "bad event ring state %u after reset\n",
-			evt_ring->state);
+		dev_err(gsi->dev, "event ring %u bad state %u after reset\n",
+			evt_ring_id, evt_ring->state);
 }
 
 /* Issue a hardware de-allocation request for an allocated event ring */
@@ -407,15 +407,15 @@  static void gsi_evt_ring_de_alloc_command(struct gsi *gsi, u32 evt_ring_id)
 	int ret;
 
 	if (evt_ring->state != GSI_EVT_RING_STATE_ALLOCATED) {
-		dev_err(gsi->dev, "bad event ring state %u before dealloc\n",
-			evt_ring->state);
+		dev_err(gsi->dev, "event ring %u state %u before dealloc\n",
+			evt_ring_id, evt_ring->state);
 		return;
 	}
 
 	ret = evt_ring_command(gsi, evt_ring_id, GSI_EVT_DE_ALLOC);
 	if (!ret && evt_ring->state != GSI_EVT_RING_STATE_NOT_ALLOCATED)
-		dev_err(gsi->dev, "bad event ring state %u after dealloc\n",
-			evt_ring->state);
+		dev_err(gsi->dev, "event ring %u bad state %u after dealloc\n",
+			evt_ring_id, evt_ring->state);
 }
 
 /* Fetch the current state of a channel from hardware */
@@ -479,7 +479,8 @@  static int gsi_channel_alloc_command(struct gsi *gsi, u32 channel_id)
 	/* Get initial channel state */
 	state = gsi_channel_state(channel);
 	if (state != GSI_CHANNEL_STATE_NOT_ALLOCATED) {
-		dev_err(dev, "bad channel state %u before alloc\n", state);
+		dev_err(dev, "channel %u bad state %u before alloc\n",
+			channel_id, state);
 		return -EINVAL;
 	}
 
@@ -488,7 +489,8 @@  static int gsi_channel_alloc_command(struct gsi *gsi, u32 channel_id)
 	/* Channel state will normally have been updated */
 	state = gsi_channel_state(channel);
 	if (!ret && state != GSI_CHANNEL_STATE_ALLOCATED) {
-		dev_err(dev, "bad channel state %u after alloc\n", state);
+		dev_err(dev, "channel %u bad state %u after alloc\n",
+			channel_id, state);
 		ret = -EIO;
 	}
 
@@ -505,7 +507,8 @@  static int gsi_channel_start_command(struct gsi_channel *channel)
 	state = gsi_channel_state(channel);
 	if (state != GSI_CHANNEL_STATE_ALLOCATED &&
 	    state != GSI_CHANNEL_STATE_STOPPED) {
-		dev_err(dev, "bad channel state %u before start\n", state);
+		dev_err(dev, "channel %u bad state %u before start\n",
+			gsi_channel_id(channel), state);
 		return -EINVAL;
 	}
 
@@ -514,7 +517,8 @@  static int gsi_channel_start_command(struct gsi_channel *channel)
 	/* Channel state will normally have been updated */
 	state = gsi_channel_state(channel);
 	if (!ret && state != GSI_CHANNEL_STATE_STARTED) {
-		dev_err(dev, "bad channel state %u after start\n", state);
+		dev_err(dev, "channel %u bad state %u after start\n",
+			gsi_channel_id(channel), state);
 		ret = -EIO;
 	}
 
@@ -538,7 +542,8 @@  static int gsi_channel_stop_command(struct gsi_channel *channel)
 
 	if (state != GSI_CHANNEL_STATE_STARTED &&
 	    state != GSI_CHANNEL_STATE_STOP_IN_PROC) {
-		dev_err(dev, "bad channel state %u before stop\n", state);
+		dev_err(dev, "channel %u bad state %u before stop\n",
+			gsi_channel_id(channel), state);
 		return -EINVAL;
 	}
 
@@ -553,7 +558,8 @@  static int gsi_channel_stop_command(struct gsi_channel *channel)
 	if (state == GSI_CHANNEL_STATE_STOP_IN_PROC)
 		return -EAGAIN;
 
-	dev_err(dev, "bad channel state %u after stop\n", state);
+	dev_err(dev, "channel %u bad state %u after stop\n",
+		gsi_channel_id(channel), state);
 
 	return -EIO;
 }
@@ -570,7 +576,8 @@  static void gsi_channel_reset_command(struct gsi_channel *channel)
 	state = gsi_channel_state(channel);
 	if (state != GSI_CHANNEL_STATE_STOPPED &&
 	    state != GSI_CHANNEL_STATE_ERROR) {
-		dev_err(dev, "bad channel state %u before reset\n", state);
+		dev_err(dev, "channel %u bad state %u before reset\n",
+			gsi_channel_id(channel), state);
 		return;
 	}
 
@@ -579,7 +586,8 @@  static void gsi_channel_reset_command(struct gsi_channel *channel)
 	/* Channel state will normally have been updated */
 	state = gsi_channel_state(channel);
 	if (!ret && state != GSI_CHANNEL_STATE_ALLOCATED)
-		dev_err(dev, "bad channel state %u after reset\n", state);
+		dev_err(dev, "channel %u bad state %u after reset\n",
+			gsi_channel_id(channel), state);
 }
 
 /* Deallocate an ALLOCATED GSI channel */
@@ -592,7 +600,8 @@  static void gsi_channel_de_alloc_command(struct gsi *gsi, u32 channel_id)
 
 	state = gsi_channel_state(channel);
 	if (state != GSI_CHANNEL_STATE_ALLOCATED) {
-		dev_err(dev, "bad channel state %u before dealloc\n", state);
+		dev_err(dev, "channel %u bad state %u before dealloc\n",
+			channel_id, state);
 		return;
 	}
 
@@ -601,7 +610,8 @@  static void gsi_channel_de_alloc_command(struct gsi *gsi, u32 channel_id)
 	/* Channel state will normally have been updated */
 	state = gsi_channel_state(channel);
 	if (!ret && state != GSI_CHANNEL_STATE_NOT_ALLOCATED)
-		dev_err(dev, "bad channel state %u after dealloc\n", state);
+		dev_err(dev, "channel %u bad state %u after dealloc\n",
+			channel_id, state);
 }
 
 /* Ring an event ring doorbell, reporting the last entry processed by the AP.