This patch adds a 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.wnuc...@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktio...@intel.com>
Reviewed-by: Kirsher Jeffrey T <jeffrey.t.kirs...@intel.com>
Reviewed-by: Galazka Krzysztof <krzysztof.gala...@intel.com>
Reviewed-by: Grzegorz Siwik <grzegorz.si...@intel.com>
Reviewed-by: Michael Alice <alice.mich...@intel.com>
Signed-off-by: Xiaolong Ye <xiaolong...@intel.com>
---
drivers/net/i40e/base/i40e_dcb.c | 18 ++++++-
drivers/net/i40e/base/i40e_dcb.h | 2 +
drivers/net/i40e/base/i40e_nvm.c | 71 ++++++++++++++++++++++++++
drivers/net/i40e/base/i40e_prototype.h | 4 ++
4 files changed, 94 insertions(+), 1 deletion(-)
diff --git a/drivers/net/i40e/base/i40e_dcb.c b/drivers/net/i40e/base/i40e_dcb.c
index 96d2f05df..38a1284c9 100644
--- a/drivers/net/i40e/base/i40e_dcb.c
+++ b/drivers/net/i40e/base/i40e_dcb.c
@@ -877,7 +877,23 @@ enum i40e_status_code i40e_init_dcb(struct i40e_hw *hw,
bool enable_mib_change)
return I40E_NOT_SUPPORTED;
/* Read LLDP NVM area */
- ret = i40e_read_lldp_cfg(hw, &lldp_cfg);
+ if (hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT) {
+ u8 offset = 0;
+
+ if (hw->mac.type == I40E_MAC_XL710)
+ offset = I40E_LLDP_CURRENT_STATUS_XL710_OFFSET;
+ else if (hw->mac.type == I40E_MAC_X722)
+ offset = I40E_LLDP_CURRENT_STATUS_X722_OFFSET;
+ else
+ return I40E_NOT_SUPPORTED;
+
+ ret = i40e_read_nvm_module_data(hw,
+ I40E_SR_EMP_SR_SETTINGS_PTR,
+ offset, 1,
+ &lldp_cfg.adminstatus);
+ } else {
+ ret = i40e_read_lldp_cfg(hw, &lldp_cfg);
+ }
if (ret)
return I40E_ERR_NOT_READY;
diff --git a/drivers/net/i40e/base/i40e_dcb.h b/drivers/net/i40e/base/i40e_dcb.h
index 6805bc8fb..f33507081 100644
--- a/drivers/net/i40e/base/i40e_dcb.h
+++ b/drivers/net/i40e/base/i40e_dcb.h
@@ -39,6 +39,8 @@
#define I40E_LLDP_ADMINSTATUS_ENABLED_TX 2
#define I40E_LLDP_ADMINSTATUS_ENABLED_RXTX 3
+#define I40E_LLDP_CURRENT_STATUS_XL710_OFFSET 0x2B
+#define I40E_LLDP_CURRENT_STATUS_X722_OFFSET 0x31
/* 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 c8b401cdd..6a55d59b4 100644
--- a/drivers/net/i40e/base/i40e_nvm.c
+++ b/drivers/net/i40e/base/i40e_nvm.c
@@ -337,6 +337,77 @@ enum i40e_status_code i40e_read_nvm_word(struct i40e_hw
*hw, u16 offset,
return ret_code;
}
+/**
+ * i40e_read_nvm_module_data - Reads NVM Buffer to specified memory location
+ * @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
+ * @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 status;
+ u16 ptr_value = 0;
+ u32 flat_offset;
+
+ if (module_ptr != 0) {
+ status = i40e_read_nvm_word(hw, module_ptr, &ptr_value);
+ if (status != I40E_SUCCESS) {
+ i40e_debug(hw, I40E_DEBUG_ALL,
+ "Reading nvm word failed.Error code: %d.\n",
+ status);
+ return I40E_ERR_NVM;
+ }
+ }
+#define I40E_NVM_INVALID_PTR_VAL 0x7FFF
+#define I40E_NVM_INVALID_VAL 0xFFFF
+
+ /* Pointer not initialized */
+ if (ptr_value == I40E_NVM_INVALID_PTR_VAL ||
+ ptr_value == I40E_NVM_INVALID_VAL)
+ 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;
+
+ /* 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;
+ }
+ } else {
+ /* Read from the Shadow RAM */
+ status = i40e_read_nvm_buffer(hw, ptr_value + offset,
+ &words_data_size, data_ptr);
+ if (status != I40E_SUCCESS) {
+ i40e_debug(hw, I40E_DEBUG_ALL,
+ "Reading nvm buffer failed.Error code:
%d.\n",
+ status);
+ }
+ }
+
+ return status;
+}
+
/**
* i40e_read_nvm_buffer_srctl - Reads Shadow RAM buffer via SRCTL register
* @hw: pointer to the HW structure
diff --git a/drivers/net/i40e/base/i40e_prototype.h
b/drivers/net/i40e/base/i40e_prototype.h
index b01dff439..a85c00b3b 100644
--- a/drivers/net/i40e/base/i40e_prototype.h
+++ b/drivers/net/i40e/base/i40e_prototype.h
@@ -456,6 +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_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,
--
2.17.1
