[v2,06/36] net/i40e/base: further implementation of LLDP
diff mbox series

Message ID 20191212152124.260629-7-xiaolong.ye@intel.com
State Changes Requested
Delegated to: xiaolong ye
Headers show
Series
  • update for i40e base code
Related show

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

Commit Message

Ye Xiaolong Dec. 12, 2019, 3:20 p.m. UTC
This code implements shared code changes necessary for LLDP Agent
support.

1. Modified i40e_aq_start_lldp and i40e_aq_stop_lldp. Now Stop and Start
can also be persistent across power cycles.
2. Added new function i40e_aq_restore_lldp which restores factory
setting for LLDP Agent or gets its status.

Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
---
 drivers/net/i40e/base/i40e_adminq_cmd.h |  19 ++-
 drivers/net/i40e/base/i40e_common.c     | 173 ++++++------------------
 drivers/net/i40e/base/i40e_prototype.h  |  18 +--
 drivers/net/i40e/base/i40e_type.h       |   1 +
 drivers/net/i40e/i40e_ethdev.c          |   4 +-
 drivers/net/i40e/rte_pmd_i40e.c         |   4 +-
 6 files changed, 67 insertions(+), 152 deletions(-)

Patch
diff mbox series

diff --git a/drivers/net/i40e/base/i40e_adminq_cmd.h b/drivers/net/i40e/base/i40e_adminq_cmd.h
index b459be921..a89b88fa5 100644
--- a/drivers/net/i40e/base/i40e_adminq_cmd.h
+++ b/drivers/net/i40e/base/i40e_adminq_cmd.h
@@ -265,6 +265,7 @@  enum i40e_admin_queue_opc {
 	i40e_aqc_opc_get_cee_dcb_cfg	= 0x0A07,
 	i40e_aqc_opc_lldp_set_local_mib	= 0x0A08,
 	i40e_aqc_opc_lldp_stop_start_spec_agent	= 0x0A09,
+	i40e_aqc_opc_lldp_restore		= 0x0A0A,
 
 	/* Tunnel commands */
 	i40e_aqc_opc_add_udp_tunnel	= 0x0B00,
@@ -2554,8 +2555,9 @@  I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_update_tlv);
 /* Stop LLDP (direct 0x0A05) */
 struct i40e_aqc_lldp_stop {
 	u8	command;
-#define I40E_AQ_LLDP_AGENT_STOP		0x0
-#define I40E_AQ_LLDP_AGENT_SHUTDOWN	0x1
+#define I40E_AQ_LLDP_AGENT_STOP			0x0
+#define I40E_AQ_LLDP_AGENT_SHUTDOWN		0x1
+#define I40E_AQ_LLDP_AGENT_STOP_PERSIST		0x2
 	u8	reserved[15];
 };
 
@@ -2565,7 +2567,8 @@  I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_stop);
 
 struct i40e_aqc_lldp_start {
 	u8	command;
-#define I40E_AQ_LLDP_AGENT_START	0x1
+#define I40E_AQ_LLDP_AGENT_START		0x1
+#define I40E_AQ_LLDP_AGENT_START_PERSIST	0x2
 	u8	reserved[15];
 };
 
@@ -2685,6 +2688,16 @@  struct i40e_aqc_lldp_stop_start_specific_agent {
 
 I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_stop_start_specific_agent);
 
+/* Restore LLDP Agent factory settings (direct 0x0A0A) */
+struct i40e_aqc_lldp_restore {
+	u8	command;
+#define I40E_AQ_LLDP_AGENT_RESTORE_NOT		0x0
+#define I40E_AQ_LLDP_AGENT_RESTORE		0x1
+	u8	reserved[15];
+};
+
+I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_restore);
+
 /* Add Udp Tunnel command and completion (direct 0x0B00) */
 struct i40e_aqc_add_udp_tunnel {
 	__le16	udp_port;
diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c
index 0b26f86c5..8ebf8b856 100644
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -4347,151 +4347,39 @@  enum i40e_status_code i40e_aq_cfg_lldp_mib_change_event(struct i40e_hw *hw,
 }
 
 /**
- * i40e_aq_add_lldp_tlv
+ * i40e_aq_restore_lldp
  * @hw: pointer to the hw struct
- * @bridge_type: type of bridge
- * @buff: buffer with TLV to add
- * @buff_size: length of the buffer
- * @tlv_len: length of the TLV to be added
- * @mib_len: length of the LLDP MIB returned in response
+ * @setting: pointer to factory setting variable or NULL
+ * @restore: True if factory settings should be restored
  * @cmd_details: pointer to command details structure or NULL
  *
- * Add the specified TLV to LLDP Local MIB for the given bridge type,
- * it is responsibility of the caller to make sure that the TLV is not
- * already present in the LLDPDU.
- * In return firmware will write the complete LLDP MIB with the newly
- * added TLV in the response buffer.
+ * Restore LLDP Agent factory settings if @restore set to True. In other case
+ * only returns factory setting in AQ response.
  **/
-enum i40e_status_code i40e_aq_add_lldp_tlv(struct i40e_hw *hw, u8 bridge_type,
-				void *buff, u16 buff_size, u16 tlv_len,
-				u16 *mib_len,
-				struct i40e_asq_cmd_details *cmd_details)
-{
-	struct i40e_aq_desc desc;
-	struct i40e_aqc_lldp_add_tlv *cmd =
-		(struct i40e_aqc_lldp_add_tlv *)&desc.params.raw;
-	enum i40e_status_code status;
-
-	if (buff_size == 0 || !buff || tlv_len == 0)
-		return I40E_ERR_PARAM;
-
-	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_lldp_add_tlv);
-
-	/* Indirect Command */
-	desc.flags |= CPU_TO_LE16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
-	if (buff_size > I40E_AQ_LARGE_BUF)
-		desc.flags |= CPU_TO_LE16((u16)I40E_AQ_FLAG_LB);
-	desc.datalen = CPU_TO_LE16(buff_size);
-
-	cmd->type = ((bridge_type << I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT) &
-		      I40E_AQ_LLDP_BRIDGE_TYPE_MASK);
-	cmd->len = CPU_TO_LE16(tlv_len);
-
-	status = i40e_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
-	if (!status) {
-		if (mib_len != NULL)
-			*mib_len = LE16_TO_CPU(desc.datalen);
-	}
-
-	return status;
-}
-
-/**
- * i40e_aq_update_lldp_tlv
- * @hw: pointer to the hw struct
- * @bridge_type: type of bridge
- * @buff: buffer with TLV to update
- * @buff_size: size of the buffer holding original and updated TLVs
- * @old_len: Length of the Original TLV
- * @new_len: Length of the Updated TLV
- * @offset: offset of the updated TLV in the buff
- * @mib_len: length of the returned LLDP MIB
- * @cmd_details: pointer to command details structure or NULL
- *
- * Update the specified TLV to the LLDP Local MIB for the given bridge type.
- * Firmware will place the complete LLDP MIB in response buffer with the
- * updated TLV.
- **/
-enum i40e_status_code i40e_aq_update_lldp_tlv(struct i40e_hw *hw,
-				u8 bridge_type, void *buff, u16 buff_size,
-				u16 old_len, u16 new_len, u16 offset,
-				u16 *mib_len,
-				struct i40e_asq_cmd_details *cmd_details)
+enum i40e_status_code
+i40e_aq_restore_lldp(struct i40e_hw *hw, u8 *setting, bool restore,
+		     struct i40e_asq_cmd_details *cmd_details)
 {
 	struct i40e_aq_desc desc;
-	struct i40e_aqc_lldp_update_tlv *cmd =
-		(struct i40e_aqc_lldp_update_tlv *)&desc.params.raw;
+	struct i40e_aqc_lldp_restore *cmd =
+		(struct i40e_aqc_lldp_restore *)&desc.params.raw;
 	enum i40e_status_code status;
 
-	if (buff_size == 0 || !buff || offset == 0 ||
-	    old_len == 0 || new_len == 0)
-		return I40E_ERR_PARAM;
-
-	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_lldp_update_tlv);
-
-	/* Indirect Command */
-	desc.flags |= CPU_TO_LE16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
-	if (buff_size > I40E_AQ_LARGE_BUF)
-		desc.flags |= CPU_TO_LE16((u16)I40E_AQ_FLAG_LB);
-	desc.datalen = CPU_TO_LE16(buff_size);
-
-	cmd->type = ((bridge_type << I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT) &
-		      I40E_AQ_LLDP_BRIDGE_TYPE_MASK);
-	cmd->old_len = CPU_TO_LE16(old_len);
-	cmd->new_offset = CPU_TO_LE16(offset);
-	cmd->new_len = CPU_TO_LE16(new_len);
-
-	status = i40e_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
-	if (!status) {
-		if (mib_len != NULL)
-			*mib_len = LE16_TO_CPU(desc.datalen);
+	if (!(hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT)) {
+		i40e_debug(hw, I40E_DEBUG_ALL,
+			   "Restore LLDP not supported by current FW version.\n");
+		return I40E_ERR_DEVICE_NOT_SUPPORTED;
 	}
 
-	return status;
-}
-
-/**
- * i40e_aq_delete_lldp_tlv
- * @hw: pointer to the hw struct
- * @bridge_type: type of bridge
- * @buff: pointer to a user supplied buffer that has the TLV
- * @buff_size: length of the buffer
- * @tlv_len: length of the TLV to be deleted
- * @mib_len: length of the returned LLDP MIB
- * @cmd_details: pointer to command details structure or NULL
- *
- * Delete the specified TLV from LLDP Local MIB for the given bridge type.
- * The firmware places the entire LLDP MIB in the response buffer.
- **/
-enum i40e_status_code i40e_aq_delete_lldp_tlv(struct i40e_hw *hw,
-				u8 bridge_type, void *buff, u16 buff_size,
-				u16 tlv_len, u16 *mib_len,
-				struct i40e_asq_cmd_details *cmd_details)
-{
-	struct i40e_aq_desc desc;
-	struct i40e_aqc_lldp_add_tlv *cmd =
-		(struct i40e_aqc_lldp_add_tlv *)&desc.params.raw;
-	enum i40e_status_code status;
-
-	if (buff_size == 0 || !buff)
-		return I40E_ERR_PARAM;
+	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_lldp_restore);
 
-	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_lldp_delete_tlv);
+	if (restore)
+		cmd->command |= I40E_AQ_LLDP_AGENT_RESTORE;
 
-	/* Indirect Command */
-	desc.flags |= CPU_TO_LE16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD));
-	if (buff_size > I40E_AQ_LARGE_BUF)
-		desc.flags |= CPU_TO_LE16((u16)I40E_AQ_FLAG_LB);
-	desc.datalen = CPU_TO_LE16(buff_size);
-	cmd->len = CPU_TO_LE16(tlv_len);
-	cmd->type = ((bridge_type << I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT) &
-		      I40E_AQ_LLDP_BRIDGE_TYPE_MASK);
+	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
 
-	status = i40e_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
-	if (!status) {
-		if (mib_len != NULL)
-			*mib_len = LE16_TO_CPU(desc.datalen);
-	}
+	if (setting)
+		*setting = cmd->command & 1;
 
 	return status;
 }
@@ -4500,11 +4388,13 @@  enum i40e_status_code i40e_aq_delete_lldp_tlv(struct i40e_hw *hw,
  * i40e_aq_stop_lldp
  * @hw: pointer to the hw struct
  * @shutdown_agent: True if LLDP Agent needs to be Shutdown
+ * @persist: True if stop of LLDP should be persistent across power cycles
  * @cmd_details: pointer to command details structure or NULL
  *
  * Stop or Shutdown the embedded LLDP Agent
  **/
 enum i40e_status_code i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent,
+				bool persist,
 				struct i40e_asq_cmd_details *cmd_details)
 {
 	struct i40e_aq_desc desc;
@@ -4517,6 +4407,14 @@  enum i40e_status_code i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent,
 	if (shutdown_agent)
 		cmd->command |= I40E_AQ_LLDP_AGENT_SHUTDOWN;
 
+	if (persist) {
+		if (hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT)
+			cmd->command |= I40E_AQ_LLDP_AGENT_STOP_PERSIST;
+		else
+			i40e_debug(hw, I40E_DEBUG_ALL,
+				   "Persistent Stop LLDP not supported by current FW version.\n");
+	}
+
 	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
 
 	return status;
@@ -4525,11 +4423,13 @@  enum i40e_status_code i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent,
 /**
  * i40e_aq_start_lldp
  * @hw: pointer to the hw struct
+ * @persist: True if start of LLDP should be persistent across power cycles
  * @cmd_details: pointer to command details structure or NULL
  *
  * Start the embedded LLDP Agent on all ports.
  **/
 enum i40e_status_code i40e_aq_start_lldp(struct i40e_hw *hw,
+				bool persist,
 				struct i40e_asq_cmd_details *cmd_details)
 {
 	struct i40e_aq_desc desc;
@@ -4540,6 +4440,15 @@  enum i40e_status_code i40e_aq_start_lldp(struct i40e_hw *hw,
 	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_lldp_start);
 
 	cmd->command = I40E_AQ_LLDP_AGENT_START;
+
+	if (persist) {
+		if (hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT)
+			cmd->command |= I40E_AQ_LLDP_AGENT_START_PERSIST;
+		else
+			i40e_debug(hw, I40E_DEBUG_ALL,
+				   "Persistent Start LLDP not supported by current FW version.\n");
+	}
+
 	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
 
 	return status;
diff --git a/drivers/net/i40e/base/i40e_prototype.h b/drivers/net/i40e/base/i40e_prototype.h
index 0cf006dad..2f3e0bfee 100644
--- a/drivers/net/i40e/base/i40e_prototype.h
+++ b/drivers/net/i40e/base/i40e_prototype.h
@@ -251,26 +251,18 @@  enum i40e_status_code i40e_aq_set_lldp_mib(struct i40e_hw *hw,
 enum i40e_status_code i40e_aq_cfg_lldp_mib_change_event(struct i40e_hw *hw,
 				bool enable_update,
 				struct i40e_asq_cmd_details *cmd_details);
-enum i40e_status_code i40e_aq_add_lldp_tlv(struct i40e_hw *hw, u8 bridge_type,
-				void *buff, u16 buff_size, u16 tlv_len,
-				u16 *mib_len,
-				struct i40e_asq_cmd_details *cmd_details);
-enum i40e_status_code i40e_aq_update_lldp_tlv(struct i40e_hw *hw,
-				u8 bridge_type, void *buff, u16 buff_size,
-				u16 old_len, u16 new_len, u16 offset,
-				u16 *mib_len,
-				struct i40e_asq_cmd_details *cmd_details);
-enum i40e_status_code i40e_aq_delete_lldp_tlv(struct i40e_hw *hw,
-				u8 bridge_type, void *buff, u16 buff_size,
-				u16 tlv_len, u16 *mib_len,
-				struct i40e_asq_cmd_details *cmd_details);
+enum i40e_status_code
+i40e_aq_restore_lldp(struct i40e_hw *hw, u8 *setting, bool restore,
+		     struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent,
+				bool persist,
 				struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_aq_set_dcb_parameters(struct i40e_hw *hw,
 						 bool dcb_enable,
 						 struct i40e_asq_cmd_details
 						 *cmd_details);
 enum i40e_status_code i40e_aq_start_lldp(struct i40e_hw *hw,
+				bool persist,
 				struct i40e_asq_cmd_details *cmd_details);
 enum i40e_status_code i40e_aq_get_cee_dcb_config(struct i40e_hw *hw,
 				void *buff, u16 buff_size,
diff --git a/drivers/net/i40e/base/i40e_type.h b/drivers/net/i40e/base/i40e_type.h
index 0cbb13262..322300fa3 100644
--- a/drivers/net/i40e/base/i40e_type.h
+++ b/drivers/net/i40e/base/i40e_type.h
@@ -742,6 +742,7 @@  struct i40e_hw {
 #define I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE  BIT_ULL(2)
 #define I40E_HW_FLAG_NVM_READ_REQUIRES_LOCK BIT_ULL(3)
 #define I40E_HW_FLAG_FW_LLDP_STOPPABLE	    BIT_ULL(4)
+#define I40E_HW_FLAG_FW_LLDP_PERSISTENT     BIT_ULL(5)
 	u64 flags;
 
 	/* Used in set switch config AQ command */
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 765d9b495..26843584e 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -11577,7 +11577,7 @@  i40e_dcb_init_configure(struct rte_eth_dev *dev, bool sw_dcb)
 	 */
 	if (sw_dcb == TRUE) {
 		if (i40e_need_stop_lldp(dev)) {
-			ret = i40e_aq_stop_lldp(hw, TRUE, NULL);
+			ret = i40e_aq_stop_lldp(hw, TRUE, TRUE, NULL);
 			if (ret != I40E_SUCCESS)
 				PMD_INIT_LOG(DEBUG, "Failed to stop lldp");
 		}
@@ -11626,7 +11626,7 @@  i40e_dcb_init_configure(struct rte_eth_dev *dev, bool sw_dcb)
 			return -ENOTSUP;
 		}
 	} else {
-		ret = i40e_aq_start_lldp(hw, NULL);
+		ret = i40e_aq_start_lldp(hw, true, NULL);
 		if (ret != I40E_SUCCESS)
 			PMD_INIT_LOG(DEBUG, "Failed to start lldp");
 
diff --git a/drivers/net/i40e/rte_pmd_i40e.c b/drivers/net/i40e/rte_pmd_i40e.c
index fdcb1a43e..b64f55341 100644
--- a/drivers/net/i40e/rte_pmd_i40e.c
+++ b/drivers/net/i40e/rte_pmd_i40e.c
@@ -1409,7 +1409,7 @@  rte_pmd_i40e_set_tc_strict_prio(uint16_t port, uint8_t tc_map)
 
 	/* Disable DCBx if it's the first time to set strict priority. */
 	if (!veb->strict_prio_tc) {
-		ret = i40e_aq_stop_lldp(hw, true, NULL);
+		ret = i40e_aq_stop_lldp(hw, true, true, NULL);
 		if (ret)
 			PMD_DRV_LOG(INFO,
 				    "Failed to disable DCBx as it's already"
@@ -1464,7 +1464,7 @@  rte_pmd_i40e_set_tc_strict_prio(uint16_t port, uint8_t tc_map)
 
 	/* Enable DCBx again, if all the TCs' strict priority disabled. */
 	if (!tc_map) {
-		ret = i40e_aq_start_lldp(hw, NULL);
+		ret = i40e_aq_start_lldp(hw, true, NULL);
 		if (ret) {
 			PMD_DRV_LOG(ERR,
 				    "Failed to enable DCBx, err(%d).", ret);