[dpdk-dev] [PATCH v2 01/63] net/ice/base: enhance NVM read

[Qi Zhang <qi.z.zhang@intel.com>]

Add an option to read NVM from flash directly.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ice/base/ice_adminq_cmd.h | 22 ++++++++++++++++++++++
 drivers/net/ice/base/ice_dcb.h        |  1 +
 drivers/net/ice/base/ice_nvm.c        | 12 +++++++++---
 3 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ice/base/ice_adminq_cmd.h b/drivers/net/ice/base/ice_adminq_cmd.h
index 7afdb6578..b5faa5bf6 100644
--- a/drivers/net/ice/base/ice_adminq_cmd.h
+++ b/drivers/net/ice/base/ice_adminq_cmd.h
@@ -1684,6 +1684,28 @@ struct ice_aqc_nvm {
 	__le32 addr_low;
 };
 
+/* NVM Module_Type ID, needed offset and read_len for struct ice_aqc_nvm. */
+#define ICE_AQC_NVM_SECTOR_UNIT			4096 /* In Bytes */
+#define ICE_AQC_NVM_WORD_UNIT			2 /* In Bytes */
+
+#define ICE_AQC_NVM_START_POINT			0
+#define ICE_AQC_NVM_EMP_SR_PTR_OFFSET		0x90
+#define ICE_AQC_NVM_EMP_SR_PTR_RD_LEN		2 /* In Bytes */
+#define ICE_AQC_NVM_EMP_SR_PTR_M		MAKEMASK(0x7FFF, 0)
+#define ICE_AQC_NVM_EMP_SR_PTR_TYPE_S		15
+#define ICE_AQC_NVM_EMP_SR_PTR_TYPE_M		BIT(15)
+#define ICE_AQC_NVM_EMP_SR_PTR_TYPE_SECTOR	1
+
+#define ICE_AQC_NVM_LLDP_CFG_PTR_OFFSET		0x46
+#define ICE_AQC_NVM_LLDP_CFG_HEADER_LEN		2 /* In Bytes */
+#define ICE_AQC_NVM_LLDP_CFG_PTR_RD_LEN		2 /* In Bytes */
+
+#define ICE_AQC_NVM_LLDP_PRESERVED_MOD_ID	0x129
+#define ICE_AQC_NVM_CUR_LLDP_PERSIST_RD_OFFSET	2 /* In Bytes */
+#define ICE_AQC_NVM_LLDP_STATUS_M		MAKEMASK(0xF, 0)
+#define ICE_AQC_NVM_LLDP_STATUS_M_LEN		4 /* In Bits */
+#define ICE_AQC_NVM_LLDP_STATUS_RD_LEN		4 /* In Bytes */
+
 
 /* Used for 0x0704 as well as for 0x0705 commands */
 struct ice_aqc_nvm_cfg {
diff --git a/drivers/net/ice/base/ice_dcb.h b/drivers/net/ice/base/ice_dcb.h
index 47127096b..9a0968f5b 100644
--- a/drivers/net/ice/base/ice_dcb.h
+++ b/drivers/net/ice/base/ice_dcb.h
@@ -6,6 +6,7 @@
 #define _ICE_DCB_H_
 
 #include "ice_type.h"
+#include "ice_common.h"
 
 #define ICE_DCBX_OFFLOAD_DIS		0
 #define ICE_DCBX_OFFLOAD_ENABLED	1
diff --git a/drivers/net/ice/base/ice_nvm.c b/drivers/net/ice/base/ice_nvm.c
index 6178cd4ac..f4567ca8f 100644
--- a/drivers/net/ice/base/ice_nvm.c
+++ b/drivers/net/ice/base/ice_nvm.c
@@ -13,13 +13,15 @@
  * @length: length of the section to be read (in bytes from the offset)
  * @data: command buffer (size [bytes] = length)
  * @last_command: tells if this is the last command in a series
+ * @read_shadow_ram: tell if this is a shadow RAM read
  * @cd: pointer to command details structure or NULL
  *
  * Read the NVM using the admin queue commands (0x0701)
  */
 static enum ice_status
 ice_aq_read_nvm(struct ice_hw *hw, u16 module_typeid, u32 offset, u16 length,
-		void *data, bool last_command, struct ice_sq_cd *cd)
+		void *data, bool last_command, bool read_shadow_ram,
+		struct ice_sq_cd *cd)
 {
 	struct ice_aq_desc desc;
 	struct ice_aqc_nvm *cmd;
@@ -34,6 +36,9 @@ ice_aq_read_nvm(struct ice_hw *hw, u16 module_typeid, u32 offset, u16 length,
 
 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_read);
 
+	if (!read_shadow_ram && module_typeid == ICE_AQC_NVM_START_POINT)
+		cmd->cmd_flags |= ICE_AQC_NVM_FLASH_ONLY;
+
 	/* If this is the last command in a series, set the proper flag. */
 	if (last_command)
 		cmd->cmd_flags |= ICE_AQC_NVM_LAST_CMD;
@@ -104,8 +109,9 @@ ice_read_sr_aq(struct ice_hw *hw, u32 offset, u16 words, u16 *data,
 	 * So do this conversion while calling ice_aq_read_nvm.
 	 */
 	if (!status)
-		status = ice_aq_read_nvm(hw, 0, 2 * offset, 2 * words, data,
-					 last_command, NULL);
+		status = ice_aq_read_nvm(hw, ICE_AQC_NVM_START_POINT,
+					 2 * offset, 2 * words, data,
+					 last_command, true, NULL);
 
 	return status;
 }
-- 
2.13.6