[PATCH net-next 0/2] qed* Fix series.

[PATCH net-next 0/2] qed* Fix series.

[Sudarsana Reddy Kalluru]

The patch series addresses couple of issues in the recent commits.
Patch (1) populates the actual dump-size of config attribute instead of
providing a fixed size value.
Patch(2) updates frame format of flash config buffer as required by
management FW (MFW).

Please consider applying it to net-next.

Sudarsana Reddy Kalluru (2):
  qed*: Fix size of config attribute dump.
  qed: Fix Config attribute frame format.

 drivers/net/ethernet/qlogic/qed/qed_main.c      | 47 +++++++++++++++++++------
 drivers/net/ethernet/qlogic/qede/qede_ethtool.c | 14 ++++----
 include/linux/qed/qed_if.h                      |  8 +++++
 3 files changed, 53 insertions(+), 16 deletions(-)

-- 
1.8.3.1

[PATCH net-next 1/2] qed*: Fix size of config attribute dump.

[Sudarsana Reddy Kalluru]

Driver currently returns max-buf-size as size of the config attribute.
This patch incorporates changes to read this value from MFW (if available)
and provide it to the user. Also did a trivial clean up in this path.

Fixes: d44a3ced7023 ("qede: Add support for reading the config id attributes.")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
---
 drivers/net/ethernet/qlogic/qed/qed_main.c      | 26 +++++++++++++++++++++++++
 drivers/net/ethernet/qlogic/qede/qede_ethtool.c | 14 +++++++------
 include/linux/qed/qed_if.h                      |  8 ++++++++
 3 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index ac1511a8..38c0ec3 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -2300,6 +2300,31 @@ static int qed_nvm_flash_cfg_write(struct qed_dev *cdev, const u8 **data)
 	return rc;
 }
 
+#define QED_MAX_NVM_BUF_LEN	32
+static int qed_nvm_flash_cfg_len(struct qed_dev *cdev, u32 cmd)
+{
+	struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+	u8 buf[QED_MAX_NVM_BUF_LEN];
+	struct qed_ptt *ptt;
+	u32 len;
+	int rc;
+
+	ptt = qed_ptt_acquire(hwfn);
+	if (!ptt)
+		return QED_MAX_NVM_BUF_LEN;
+
+	rc = qed_mcp_nvm_get_cfg(hwfn, ptt, cmd, 0, QED_NVM_CFG_GET_FLAGS, buf,
+				 &len);
+	if (rc || !len) {
+		DP_ERR(cdev, "Error %d reading %d\n", rc, cmd);
+		len = QED_MAX_NVM_BUF_LEN;
+	}
+
+	qed_ptt_release(hwfn, ptt);
+
+	return len;
+}
+
 static int qed_nvm_flash_cfg_read(struct qed_dev *cdev, u8 **data,
 				  u32 cmd, u32 entity_id)
 {
@@ -2657,6 +2682,7 @@ static u8 qed_get_affin_hwfn_idx(struct qed_dev *cdev)
 	.read_module_eeprom = &qed_read_module_eeprom,
 	.get_affin_hwfn_idx = &qed_get_affin_hwfn_idx,
 	.read_nvm_cfg = &qed_nvm_flash_cfg_read,
+	.read_nvm_cfg_len = &qed_nvm_flash_cfg_len,
 	.set_grc_config = &qed_set_grc_config,
 };
 
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
index ec27a43..8a426af 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
@@ -49,7 +49,6 @@
 
 #define QEDE_SELFTEST_POLL_COUNT 100
 #define QEDE_DUMP_VERSION	0x1
-#define QEDE_DUMP_NVM_BUF_LEN	32
 #define QEDE_DUMP_NVM_ARG_COUNT	2
 
 static const struct {
@@ -2026,7 +2025,8 @@ static int qede_get_dump_flag(struct net_device *dev,
 	switch (edev->dump_info.cmd) {
 	case QEDE_DUMP_CMD_NVM_CFG:
 		dump->flag = QEDE_DUMP_CMD_NVM_CFG;
-		dump->len = QEDE_DUMP_NVM_BUF_LEN;
+		dump->len = edev->ops->common->read_nvm_cfg_len(edev->cdev,
+						edev->dump_info.args[0]);
 		break;
 	case QEDE_DUMP_CMD_GRCDUMP:
 		dump->flag = QEDE_DUMP_CMD_GRCDUMP;
@@ -2051,9 +2051,8 @@ static int qede_get_dump_data(struct net_device *dev,
 
 	if (!edev->ops || !edev->ops->common) {
 		DP_ERR(edev, "Edev ops not populated\n");
-		edev->dump_info.cmd = QEDE_DUMP_CMD_NONE;
-		edev->dump_info.num_args = 0;
-		return -EINVAL;
+		rc = -EINVAL;
+		goto err;
 	}
 
 	switch (edev->dump_info.cmd) {
@@ -2062,7 +2061,8 @@ static int qede_get_dump_data(struct net_device *dev,
 			DP_ERR(edev, "Arg count = %d required = %d\n",
 			       edev->dump_info.num_args,
 			       QEDE_DUMP_NVM_ARG_COUNT);
-			return -EINVAL;
+			rc = -EINVAL;
+			goto err;
 		}
 		rc =  edev->ops->common->read_nvm_cfg(edev->cdev, (u8 **)&buf,
 						      edev->dump_info.args[0],
@@ -2078,8 +2078,10 @@ static int qede_get_dump_data(struct net_device *dev,
 		break;
 	}
 
+err:
 	edev->dump_info.cmd = QEDE_DUMP_CMD_NONE;
 	edev->dump_info.num_args = 0;
+	memset(edev->dump_info.args, 0, sizeof(edev->dump_info.args));
 
 	return rc;
 }
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index e354638..b5db1ee 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -1143,6 +1143,14 @@ struct qed_common_ops {
  */
 	int (*read_nvm_cfg)(struct qed_dev *cdev, u8 **buf, u32 cmd,
 			    u32 entity_id);
+/**
+ * @brief read_nvm_cfg - Read NVM config attribute value.
+ * @param cdev
+ * @param cmd - NVM CFG command id
+ *
+ * @return config id length, 0 on error.
+ */
+	int (*read_nvm_cfg_len)(struct qed_dev *cdev, u32 cmd);
 
 /**
  * @brief set_grc_config - Configure value for grc config id.
-- 
1.8.3.1

[PATCH net-next 2/2] qed: Fix Config attribute frame format.

[Sudarsana Reddy Kalluru]

MFW associates the entity id to a config attribute instead of assigning
one entity id for all the config attributes.
This patch incorporates driver changes to link entity id to a config id
attribute.

Fixes: 0dabbe1bb3a4 ("qed: Add driver API for flashing the config attributes.")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
---
 drivers/net/ethernet/qlogic/qed/qed_main.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 38c0ec3..2ce7009 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -2240,12 +2240,13 @@ static int qed_nvm_flash_image_validate(struct qed_dev *cdev,
 /* Binary file format -
  *     /----------------------------------------------------------------------\
  * 0B  |                       0x5 [command index]                            |
- * 4B  | Entity ID     | Reserved        |  Number of config attributes       |
- * 8B  | Config ID                       | Length        | Value              |
+ * 4B  | Number of config attributes     |          Reserved                  |
+ * 4B  | Config ID                       | Entity ID      | Length            |
+ * 4B  | Value                                                                |
  *     |                                                                      |
  *     \----------------------------------------------------------------------/
- * There can be several cfg_id-Length-Value sets as specified by 'Number of...'.
- * Entity ID - A non zero entity value for which the config need to be updated.
+ * There can be several cfg_id-entity_id-Length-Value sets as specified by
+ * 'Number of config attributes'.
  *
  * The API parses config attributes from the user provided buffer and flashes
  * them to the respective NVM path using Management FW inerface.
@@ -2265,18 +2266,17 @@ static int qed_nvm_flash_cfg_write(struct qed_dev *cdev, const u8 **data)
 
 	/* NVM CFG ID attribute header */
 	*data += 4;
-	entity_id = **data;
-	*data += 2;
 	count = *((u16 *)*data);
-	*data += 2;
+	*data += 4;
 
 	DP_VERBOSE(cdev, NETIF_MSG_DRV,
-		   "Read config ids: entity id %02x num _attrs = %0d\n",
-		   entity_id, count);
+		   "Read config ids: num_attrs = %0d\n", count);
 	/* NVM CFG ID attributes */
 	for (i = 0; i < count; i++) {
 		cfg_id = *((u16 *)*data);
 		*data += 2;
+		entity_id = **data;
+		(*data)++;
 		len = **data;
 		(*data)++;
 		memcpy(buf, *data, len);
@@ -2286,7 +2286,8 @@ static int qed_nvm_flash_cfg_write(struct qed_dev *cdev, const u8 **data)
 			QED_NVM_CFG_SET_FLAGS;
 
 		DP_VERBOSE(cdev, NETIF_MSG_DRV,
-			   "cfg_id = %d len = %d\n", cfg_id, len);
+			   "cfg_id = %d entity = %d len = %d\n", cfg_id,
+			   entity_id, len);
 		rc = qed_mcp_nvm_set_cfg(hwfn, ptt, cfg_id, entity_id, flags,
 					 buf, len);
 		if (rc) {
-- 
1.8.3.1

Re: [PATCH net-next 0/2] qed* Fix series.

[David Miller]

From: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Date: Wed, 11 Sep 2019 04:42:49 -0700

> The patch series addresses couple of issues in the recent commits.
> Patch (1) populates the actual dump-size of config attribute instead of
> providing a fixed size value.
> Patch(2) updates frame format of flash config buffer as required by
> management FW (MFW).
> 
> Please consider applying it to net-next.

Series applied, thanks.