[dpdk-dev] [PATCH v2 20/52] net/ice/baes: add NVM help functions
Qi Zhang
qi.z.zhang at intel.com
Tue Jun 9 13:59:29 CEST 2020
Add couple functions that DPDK would like to use for accessing the
NVM.
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr at intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
drivers/net/ice/base/ice_common.h | 1 -
drivers/net/ice/base/ice_nvm.c | 67 +++++++++++++++++++++++++++++++++++++--
drivers/net/ice/base/ice_nvm.h | 10 ++++++
3 files changed, 74 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ice/base/ice_common.h b/drivers/net/ice/base/ice_common.h
index 6d971a644..46741a3f1 100644
--- a/drivers/net/ice/base/ice_common.h
+++ b/drivers/net/ice/base/ice_common.h
@@ -18,7 +18,6 @@ enum ice_fw_modes {
ICE_FW_MODE_ROLLBACK
};
-enum ice_status ice_nvm_validate_checksum(struct ice_hw *hw);
enum ice_status ice_init_fltr_mgmt_struct(struct ice_hw *hw);
void ice_cleanup_fltr_mgmt_struct(struct ice_hw *hw);
enum ice_status ice_init_hw(struct ice_hw *hw);
diff --git a/drivers/net/ice/base/ice_nvm.c b/drivers/net/ice/base/ice_nvm.c
index d5e6215de..bedfbcbb4 100644
--- a/drivers/net/ice/base/ice_nvm.c
+++ b/drivers/net/ice/base/ice_nvm.c
@@ -17,7 +17,7 @@
*
* Read the NVM using the admin queue commands (0x0701)
*/
-static enum ice_status
+enum ice_status
ice_aq_read_nvm(struct ice_hw *hw, u16 module_typeid, u32 offset, u16 length,
void *data, bool last_command, bool read_shadow_ram,
struct ice_sq_cd *cd)
@@ -186,7 +186,7 @@ ice_read_sr_buf_aq(struct ice_hw *hw, u16 offset, u16 *words, u16 *data)
*
* This function will request NVM ownership.
*/
-static enum ice_status
+enum ice_status
ice_acquire_nvm(struct ice_hw *hw, enum ice_aq_res_access_type access)
{
ice_debug(hw, ICE_DBG_TRACE, "%s\n", __func__);
@@ -203,7 +203,7 @@ ice_acquire_nvm(struct ice_hw *hw, enum ice_aq_res_access_type access)
*
* This function will release NVM ownership.
*/
-static void ice_release_nvm(struct ice_hw *hw)
+void ice_release_nvm(struct ice_hw *hw)
{
ice_debug(hw, ICE_DBG_TRACE, "%s\n", __func__);
@@ -301,6 +301,67 @@ ice_get_pfa_module_tlv(struct ice_hw *hw, u16 *module_tlv, u16 *module_tlv_len,
}
/**
+ * ice_read_pba_string - Reads part number string from NVM
+ * @hw: pointer to hardware structure
+ * @pba_num: stores the part number string from the NVM
+ * @pba_num_size: part number string buffer length
+ *
+ * Reads the part number string from the NVM.
+ */
+enum ice_status
+ice_read_pba_string(struct ice_hw *hw, u8 *pba_num, u32 pba_num_size)
+{
+ u16 pba_tlv, pba_tlv_len;
+ enum ice_status status;
+ u16 pba_word, pba_size;
+ u16 i;
+
+ status = ice_get_pfa_module_tlv(hw, &pba_tlv, &pba_tlv_len,
+ ICE_SR_PBA_BLOCK_PTR);
+ if (status != ICE_SUCCESS) {
+ ice_debug(hw, ICE_DBG_INIT, "Failed to read PBA Block TLV.\n");
+ return status;
+ }
+
+ /* pba_size is the next word */
+ status = ice_read_sr_word(hw, (pba_tlv + 2), &pba_size);
+ if (status != ICE_SUCCESS) {
+ ice_debug(hw, ICE_DBG_INIT, "Failed to read PBA Section size.\n");
+ return status;
+ }
+
+ if (pba_tlv_len < pba_size) {
+ ice_debug(hw, ICE_DBG_INIT, "Invalid PBA Block TLV size.\n");
+ return ICE_ERR_INVAL_SIZE;
+ }
+
+ /* Subtract one to get PBA word count (PBA Size word is included in
+ * total size)
+ */
+ pba_size--;
+ if (pba_num_size < (((u32)pba_size * 2) + 1)) {
+ ice_debug(hw, ICE_DBG_INIT,
+ "Buffer too small for PBA data.\n");
+ return ICE_ERR_PARAM;
+ }
+
+ for (i = 0; i < pba_size; i++) {
+ status = ice_read_sr_word(hw, (pba_tlv + 2 + 1) + i, &pba_word);
+ if (status != ICE_SUCCESS) {
+ ice_debug(hw, ICE_DBG_INIT,
+ "Failed to read PBA Block word %d.\n", i);
+ return status;
+ }
+
+ pba_num[(i * 2)] = (pba_word >> 8) & 0xFF;
+ pba_num[(i * 2) + 1] = pba_word & 0xFF;
+ }
+ pba_num[(pba_size * 2)] = '\0';
+
+ return status;
+}
+
+/**
* ice_get_orom_ver_info - Read Option ROM version information
* @hw: pointer to the HW struct
*
diff --git a/drivers/net/ice/base/ice_nvm.h b/drivers/net/ice/base/ice_nvm.h
index 9a61d4153..8e2eb4df1 100644
--- a/drivers/net/ice/base/ice_nvm.h
+++ b/drivers/net/ice/base/ice_nvm.h
@@ -85,13 +85,23 @@ enum ice_status
ice_handle_nvm_access(struct ice_hw *hw, struct ice_nvm_access_cmd *cmd,
union ice_nvm_access_data *data);
enum ice_status
+ice_acquire_nvm(struct ice_hw *hw, enum ice_aq_res_access_type access);
+void ice_release_nvm(struct ice_hw *hw);
+enum ice_status
+ice_aq_read_nvm(struct ice_hw *hw, u16 module_typeid, u32 offset, u16 length,
+ void *data, bool last_command, bool read_shadow_ram,
+ struct ice_sq_cd *cd);
+enum ice_status
ice_read_flat_nvm(struct ice_hw *hw, u32 offset, u32 *length, u8 *data,
bool read_shadow_ram);
enum ice_status
ice_get_pfa_module_tlv(struct ice_hw *hw, u16 *module_tlv, u16 *module_tlv_len,
u16 module_type);
+enum ice_status
+ice_read_pba_string(struct ice_hw *hw, u8 *pba_num, u32 pba_num_size);
enum ice_status ice_init_nvm(struct ice_hw *hw);
enum ice_status ice_read_sr_word(struct ice_hw *hw, u16 offset, u16 *data);
enum ice_status
ice_read_sr_buf(struct ice_hw *hw, u16 offset, u16 *words, u16 *data);
+enum ice_status ice_nvm_validate_checksum(struct ice_hw *hw);
#endif /* _ICE_NVM_H_ */
--
2.13.6
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