[44/69] net/i40e/base: change for persistent lldp support
diff mbox series

Message ID 20191202074935.97629-45-xiaolong.ye@intel.com
State New
Delegated to: xiaolong ye
Headers show
Series
  • update for i40e base code
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Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Ye Xiaolong Dec. 2, 2019, 7:49 a.m. UTC
This patch fixes function to read nvm module data and uses it to
read current lldp agent configuration from nvm api version 1.8.

Signed-off-by: Wnuczko Sylwia <sylwia.wnuczko@intel.com>
Reviewed-by: Galazka Krzysztof <krzysztof.galazka@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Formela Marcin <marcin.formela@intel.com>
Reviewed-by: Michael Alice <alice.michael@intel.com>
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
---
 drivers/net/i40e/base/i40e_dcb.c       |  4 +-
 drivers/net/i40e/base/i40e_dcb.h       |  3 ++
 drivers/net/i40e/base/i40e_nvm.c       | 58 +++++++++++++-------------
 drivers/net/i40e/base/i40e_prototype.h |  8 ++--
 4 files changed, 39 insertions(+), 34 deletions(-)

Patch
diff mbox series

diff --git a/drivers/net/i40e/base/i40e_dcb.c b/drivers/net/i40e/base/i40e_dcb.c
index 38a1284c9..ac3d3f3f7 100644
--- a/drivers/net/i40e/base/i40e_dcb.c
+++ b/drivers/net/i40e/base/i40e_dcb.c
@@ -889,7 +889,9 @@  enum i40e_status_code i40e_init_dcb(struct i40e_hw *hw, bool enable_mib_change)
 
 		ret = i40e_read_nvm_module_data(hw,
 						I40E_SR_EMP_SR_SETTINGS_PTR,
-						offset, 1,
+						offset,
+						I40E_LLDP_CURRENT_STATUS_OFFSET,
+						I40E_LLDP_CURRENT_STATUS_SIZE,
 						&lldp_cfg.adminstatus);
 	} else {
 		ret = i40e_read_lldp_cfg(hw, &lldp_cfg);
diff --git a/drivers/net/i40e/base/i40e_dcb.h b/drivers/net/i40e/base/i40e_dcb.h
index f33507081..12fe95c79 100644
--- a/drivers/net/i40e/base/i40e_dcb.h
+++ b/drivers/net/i40e/base/i40e_dcb.h
@@ -41,6 +41,9 @@ 
 
 #define I40E_LLDP_CURRENT_STATUS_XL710_OFFSET  0x2B
 #define I40E_LLDP_CURRENT_STATUS_X722_OFFSET   0x31
+#define I40E_LLDP_CURRENT_STATUS_OFFSET                1
+#define I40E_LLDP_CURRENT_STATUS_SIZE          1
+
 /* Defines for LLDP TLV header */
 #define I40E_LLDP_MIB_HLEN		14
 #define I40E_LLDP_TLV_LEN_SHIFT		0
diff --git a/drivers/net/i40e/base/i40e_nvm.c b/drivers/net/i40e/base/i40e_nvm.c
index 6a55d59b4..fc24cc2ce 100644
--- a/drivers/net/i40e/base/i40e_nvm.c
+++ b/drivers/net/i40e/base/i40e_nvm.c
@@ -339,20 +339,21 @@  enum i40e_status_code i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
 
 /**
  * i40e_read_nvm_module_data - Reads NVM Buffer to specified memory location
- * @hw: pointer to the HW structure
+ * @hw: Pointer to the HW structure
  * @module_ptr: Pointer to module in words with respect to NVM beginning
- * @offset: offset in words from module start
+ * @module_offset: Offset in words from module start
+ * @data_offset: Offset in words from reading data area start
  * @words_data_size: Words to read from NVM
  * @data_ptr: Pointer to memory location where resulting buffer will be stored
  **/
-enum i40e_status_code i40e_read_nvm_module_data(struct i40e_hw *hw,
-						u8 module_ptr, u16 offset,
-						u16 words_data_size,
-						u16 *data_ptr)
+enum i40e_status_code
+i40e_read_nvm_module_data(struct i40e_hw *hw, u8 module_ptr, u16 module_offset,
+			  u16 data_offset, u16 words_data_size, u16 *data_ptr)
 {
 	enum i40e_status_code status;
+	u16 specific_ptr = 0;
 	u16 ptr_value = 0;
-	u32 flat_offset;
+	u16 offset = 0;
 
 	if (module_ptr != 0) {
 		status = i40e_read_nvm_word(hw, module_ptr, &ptr_value);
@@ -368,36 +369,35 @@  enum i40e_status_code i40e_read_nvm_module_data(struct i40e_hw *hw,
 
 	/* Pointer not initialized */
 	if (ptr_value == I40E_NVM_INVALID_PTR_VAL ||
-	    ptr_value == I40E_NVM_INVALID_VAL)
+	    ptr_value == I40E_NVM_INVALID_VAL) {
+		i40e_debug(hw, I40E_DEBUG_ALL, "Pointer not initialized.\n");
 		return I40E_ERR_BAD_PTR;
+	}
 
 	/* Check whether the module is in SR mapped area or outside */
 	if (ptr_value & I40E_PTR_TYPE) {
 		/* Pointer points outside of the Shared RAM mapped area */
-		ptr_value &= ~I40E_PTR_TYPE;
+		i40e_debug(hw, I40E_DEBUG_ALL,
+			   "Reading nvm data failed. Pointer points outside of the Shared RAM mapped area.\n");
 
-		/* PtrValue in 4kB units, need to convert to words */
-		ptr_value /= 2;
-		flat_offset = ((u32)ptr_value * 0x1000) + (u32)offset;
-		status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
-		if (status == I40E_SUCCESS) {
-			status = i40e_aq_read_nvm(hw, 0, 2 * flat_offset,
-						  2 * words_data_size,
-						  data_ptr, true, NULL);
-			i40e_release_nvm(hw);
-			if (status != I40E_SUCCESS) {
-				i40e_debug(hw, I40E_DEBUG_ALL,
-					   "Reading nvm aq failed.Error code: %d.\n",
-					   status);
-				return I40E_ERR_NVM;
-			}
-		} else {
-			return I40E_ERR_NVM;
-		}
+		return I40E_ERR_PARAM;
 	} else {
 		/* Read from the Shadow RAM */
-		status = i40e_read_nvm_buffer(hw, ptr_value + offset,
-					      &words_data_size, data_ptr);
+
+		status = i40e_read_nvm_word(hw, ptr_value + module_offset,
+					    &specific_ptr);
+		if (status != I40E_SUCCESS) {
+			i40e_debug(hw, I40E_DEBUG_ALL,
+				   "Reading nvm word failed.Error code: %d.\n",
+				   status);
+			return I40E_ERR_NVM;
+		}
+
+		offset = ptr_value + module_offset + specific_ptr +
+			data_offset;
+
+		status = i40e_read_nvm_buffer(hw, offset, &words_data_size,
+					      data_ptr);
 		if (status != I40E_SUCCESS) {
 			i40e_debug(hw, I40E_DEBUG_ALL,
 				   "Reading nvm buffer failed.Error code: %d.\n",
diff --git a/drivers/net/i40e/base/i40e_prototype.h b/drivers/net/i40e/base/i40e_prototype.h
index 0ccd573f2..975fbd3ca 100644
--- a/drivers/net/i40e/base/i40e_prototype.h
+++ b/drivers/net/i40e/base/i40e_prototype.h
@@ -456,10 +456,10 @@  enum i40e_status_code i40e_acquire_nvm(struct i40e_hw *hw,
 void i40e_release_nvm(struct i40e_hw *hw);
 enum i40e_status_code i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
 					 u16 *data);
-enum i40e_status_code i40e_read_nvm_module_data(struct i40e_hw *hw,
-					       u8 module_ptr, u16 offset,
-					       u16 words_data_size,
-					       u16 *data_ptr);
+enum i40e_status_code
+i40e_read_nvm_module_data(struct i40e_hw *hw, u8 module_ptr, u16 module_offset,
+			u16 data_offset, u16 words_data_size, u16 *data_ptr);
+
 enum i40e_status_code i40e_read_nvm_buffer(struct i40e_hw *hw, u16 offset,
 					   u16 *words, u16 *data);
 enum i40e_status_code i40e_write_nvm_aq(struct i40e_hw *hw, u8 module,