Merge branch 'qed-debug-data'

Denis Bolotin says:

====================
Add configuration information to register dump and debug data

The purpose of this patchset is to add configuration information to the
debug data collection, which already contains register dump.
The first patch (removing the ptt) is essential because it prevents the
unnecessary ptt acquirement when calling mcp APIs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

5 files changed, 141 insertions, 18 deletions

diff --git a/drivers/net/ethernet/qlogic/qed/qed_debug.c b/drivers/net/ethernet/qlogic/qed/qed_debug.c
index 4926c5532fba..b3211c7d38c2 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_debug.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_debug.c
@@ -7778,6 +7778,57 @@ int qed_dbg_igu_fifo_size(struct qed_dev *cdev)
 	return qed_dbg_feature_size(cdev, DBG_FEATURE_IGU_FIFO);
 }
 
+int qed_dbg_nvm_image_length(struct qed_hwfn *p_hwfn,
+			     enum qed_nvm_images image_id, u32 *length)
+{
+	struct qed_nvm_image_att image_att;
+	int rc;
+
+	*length = 0;
+	rc = qed_mcp_get_nvm_image_att(p_hwfn, image_id, &image_att);
+	if (rc)
+		return rc;
+
+	*length = image_att.length;
+
+	return rc;
+}
+
+int qed_dbg_nvm_image(struct qed_dev *cdev, void *buffer,
+		      u32 *num_dumped_bytes, enum qed_nvm_images image_id)
+{
+	struct qed_hwfn *p_hwfn =
+		&cdev->hwfns[cdev->dbg_params.engine_for_debug];
+	u32 len_rounded, i;
+	__be32 val;
+	int rc;
+
+	*num_dumped_bytes = 0;
+	rc = qed_dbg_nvm_image_length(p_hwfn, image_id, &len_rounded);
+	if (rc)
+		return rc;
+
+	DP_NOTICE(p_hwfn->cdev,
+		  "Collecting a debug feature [\"nvram image %d\"]\n",
+		  image_id);
+
+	len_rounded = roundup(len_rounded, sizeof(u32));
+	rc = qed_mcp_get_nvm_image(p_hwfn, image_id, buffer, len_rounded);
+	if (rc)
+		return rc;
+
+	/* QED_NVM_IMAGE_NVM_META image is not swapped like other images */
+	if (image_id != QED_NVM_IMAGE_NVM_META)
+		for (i = 0; i < len_rounded; i += 4) {
+			val = cpu_to_be32(*(u32 *)(buffer + i));
+			*(u32 *)(buffer + i) = val;
+		}
+
+	*num_dumped_bytes = len_rounded;
+
+	return rc;
+}
+
 int qed_dbg_protection_override(struct qed_dev *cdev, void *buffer,
 				u32 *num_dumped_bytes)
 {
@@ -7831,6 +7882,9 @@ enum debug_print_features {
 	IGU_FIFO = 6,
 	PHY = 7,
 	FW_ASSERTS = 8,
+	NVM_CFG1 = 9,
+	DEFAULT_CFG = 10,
+	NVM_META = 11,
 };
 
 static u32 qed_calc_regdump_header(enum debug_print_features feature,
@@ -7965,13 +8019,61 @@ int qed_dbg_all_data(struct qed_dev *cdev, void *buffer)
 		DP_ERR(cdev, "qed_dbg_mcp_trace failed. rc = %d\n", rc);
 	}
 
+	/* nvm cfg1 */
+	rc = qed_dbg_nvm_image(cdev,
+			       (u8 *)buffer + offset + REGDUMP_HEADER_SIZE,
+			       &feature_size, QED_NVM_IMAGE_NVM_CFG1);
+	if (!rc) {
+		*(u32 *)((u8 *)buffer + offset) =
+		    qed_calc_regdump_header(NVM_CFG1, cur_engine,
+					    feature_size, omit_engine);
+		offset += (feature_size + REGDUMP_HEADER_SIZE);
+	} else if (rc != -ENOENT) {
+		DP_ERR(cdev,
+		       "qed_dbg_nvm_image failed for image  %d (%s), rc = %d\n",
+		       QED_NVM_IMAGE_NVM_CFG1, "QED_NVM_IMAGE_NVM_CFG1", rc);
+	}
+
+	/* nvm default */
+	rc = qed_dbg_nvm_image(cdev,
+			       (u8 *)buffer + offset + REGDUMP_HEADER_SIZE,
+			       &feature_size, QED_NVM_IMAGE_DEFAULT_CFG);
+	if (!rc) {
+		*(u32 *)((u8 *)buffer + offset) =
+		    qed_calc_regdump_header(DEFAULT_CFG, cur_engine,
+					    feature_size, omit_engine);
+		offset += (feature_size + REGDUMP_HEADER_SIZE);
+	} else if (rc != -ENOENT) {
+		DP_ERR(cdev,
+		       "qed_dbg_nvm_image failed for image %d (%s), rc = %d\n",
+		       QED_NVM_IMAGE_DEFAULT_CFG, "QED_NVM_IMAGE_DEFAULT_CFG",
+		       rc);
+	}
+
+	/* nvm meta */
+	rc = qed_dbg_nvm_image(cdev,
+			       (u8 *)buffer + offset + REGDUMP_HEADER_SIZE,
+			       &feature_size, QED_NVM_IMAGE_NVM_META);
+	if (!rc) {
+		*(u32 *)((u8 *)buffer + offset) =
+		    qed_calc_regdump_header(NVM_META, cur_engine,
+					    feature_size, omit_engine);
+		offset += (feature_size + REGDUMP_HEADER_SIZE);
+	} else if (rc != -ENOENT) {
+		DP_ERR(cdev,
+		       "qed_dbg_nvm_image failed for image %d (%s), rc = %d\n",
+		       QED_NVM_IMAGE_NVM_META, "QED_NVM_IMAGE_NVM_META", rc);
+	}
+
 	return 0;
 }
 
 int qed_dbg_all_data_size(struct qed_dev *cdev)
 {
+	struct qed_hwfn *p_hwfn =
+		&cdev->hwfns[cdev->dbg_params.engine_for_debug];
+	u32 regs_len = 0, image_len = 0;
 	u8 cur_engine, org_engine;
-	u32 regs_len = 0;
 
 	org_engine = qed_get_debug_engine(cdev);
 	for (cur_engine = 0; cur_engine < cdev->num_hwfns; cur_engine++) {
@@ -7993,6 +8095,15 @@ int qed_dbg_all_data_size(struct qed_dev *cdev)
 
 	/* Engine common */
 	regs_len += REGDUMP_HEADER_SIZE + qed_dbg_mcp_trace_size(cdev);
+	qed_dbg_nvm_image_length(p_hwfn, QED_NVM_IMAGE_NVM_CFG1, &image_len);
+	if (image_len)
+		regs_len += REGDUMP_HEADER_SIZE + image_len;
+	qed_dbg_nvm_image_length(p_hwfn, QED_NVM_IMAGE_DEFAULT_CFG, &image_len);
+	if (image_len)
+		regs_len += REGDUMP_HEADER_SIZE + image_len;
+	qed_dbg_nvm_image_length(p_hwfn, QED_NVM_IMAGE_NVM_META, &image_len);
+	if (image_len)
+		regs_len += REGDUMP_HEADER_SIZE + image_len;
 
 	return regs_len;
 }
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 9854aa9139af..d1d3787affe8 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -1894,15 +1894,8 @@ static int qed_nvm_get_image(struct qed_dev *cdev, enum qed_nvm_images type,
 			     u8 *buf, u16 len)
 {
 	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
-	struct qed_ptt *ptt = qed_ptt_acquire(hwfn);
-	int rc;
-
-	if (!ptt)
-		return -EAGAIN;
 
-	rc = qed_mcp_get_nvm_image(hwfn, ptt, type, buf, len);
-	qed_ptt_release(hwfn, ptt);
-	return rc;
+	return qed_mcp_get_nvm_image(hwfn, type, buf, len);
 }
 
 static int qed_set_coalesce(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index ec0d425766a7..0550f0ee11b3 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -2529,9 +2529,8 @@ err0:
 	return rc;
 }
 
-static int
+int
 qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
-			  struct qed_ptt *p_ptt,
 			  enum qed_nvm_images image_id,
 			  struct qed_nvm_image_att *p_image_att)
 {
@@ -2546,6 +2545,15 @@ qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
 	case QED_NVM_IMAGE_FCOE_CFG:
 		type = NVM_TYPE_FCOE_CFG;
 		break;
+	case QED_NVM_IMAGE_NVM_CFG1:
+		type = NVM_TYPE_NVM_CFG1;
+		break;
+	case QED_NVM_IMAGE_DEFAULT_CFG:
+		type = NVM_TYPE_DEFAULT_CFG;
+		break;
+	case QED_NVM_IMAGE_NVM_META:
+		type = NVM_TYPE_META;
+		break;
 	default:
 		DP_NOTICE(p_hwfn, "Unknown request of image_id %08x\n",
 			  image_id);
@@ -2569,7 +2577,6 @@ qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
 }
 
 int qed_mcp_get_nvm_image(struct qed_hwfn *p_hwfn,
-			  struct qed_ptt *p_ptt,
 			  enum qed_nvm_images image_id,
 			  u8 *p_buffer, u32 buffer_len)
 {
@@ -2578,7 +2585,7 @@ int qed_mcp_get_nvm_image(struct qed_hwfn *p_hwfn,
 
 	memset(p_buffer, 0, buffer_len);
 
-	rc = qed_mcp_get_nvm_image_att(p_hwfn, p_ptt, image_id, &image_att);
+	rc = qed_mcp_get_nvm_image_att(p_hwfn, image_id, &image_att);
 	if (rc)
 		return rc;
 
@@ -2590,9 +2597,6 @@ int qed_mcp_get_nvm_image(struct qed_hwfn *p_hwfn,
 		return -EINVAL;
 	}
 
-	/* Each NVM image is suffixed by CRC; Upper-layer has no need for it */
-	image_att.length -= 4;
-
 	if (image_att.length > buffer_len) {
 		DP_VERBOSE(p_hwfn,
 			   QED_MSG_STORAGE,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
index 8a5c988d0c3c..3af3896420b9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
@@ -486,7 +486,20 @@ struct qed_nvm_image_att {
  * @brief Allows reading a whole nvram image
  *
  * @param p_hwfn
- * @param p_ptt
+ * @param image_id - image to get attributes for
+ * @param p_image_att - image attributes structure into which to fill data
+ *
+ * @return int - 0 - operation was successful.
+ */
+int
+qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
+			  enum qed_nvm_images image_id,
+			  struct qed_nvm_image_att *p_image_att);
+
+/**
+ * @brief Allows reading a whole nvram image
+ *
+ * @param p_hwfn
  * @param image_id - image requested for reading
  * @param p_buffer - allocated buffer into which to fill data
  * @param buffer_len - length of the allocated buffer.
@@ -494,7 +507,6 @@ struct qed_nvm_image_att {
  * @return 0 iff p_buffer now contains the nvram image.
  */
 int qed_mcp_get_nvm_image(struct qed_hwfn *p_hwfn,
-			  struct qed_ptt *p_ptt,
 			  enum qed_nvm_images image_id,
 			  u8 *p_buffer, u32 buffer_len);
 
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index b5b2bc9eacca..e53f9c7c2809 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -159,6 +159,9 @@ struct qed_dcbx_get {
 enum qed_nvm_images {
 	QED_NVM_IMAGE_ISCSI_CFG,
 	QED_NVM_IMAGE_FCOE_CFG,
+	QED_NVM_IMAGE_NVM_CFG1,
+	QED_NVM_IMAGE_DEFAULT_CFG,
+	QED_NVM_IMAGE_NVM_META,
 };
 
 struct qed_link_eee_params {