DPDK patches and discussions
 help / color / mirror / Atom feed
From: Helin Zhang <helin.zhang@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH 02/15] i40e: support nvmupdate by default
Date: Tue,  9 Sep 2014 15:21:26 +0800	[thread overview]
Message-ID: <1410247299-4365-3-git-send-email-helin.zhang@intel.com> (raw)
In-Reply-To: <1410247299-4365-1-git-send-email-helin.zhang@intel.com>

'nvmupdate' is intended to support the userland NVMUpdate tool for
Fortville eeprom. These code changes is to remove the conditional
compile macro, and support those by default. In addition, renaming
all 'errno' to avoid any compile warning or error.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Reviewed-by: Chen Jing <jing.d.chen@intel.com>
---
 lib/librte_pmd_i40e/i40e/i40e_adminq.h |   2 -
 lib/librte_pmd_i40e/i40e/i40e_nvm.c    | 120 ++++++++++++++++-----------------
 2 files changed, 59 insertions(+), 63 deletions(-)

diff --git a/lib/librte_pmd_i40e/i40e/i40e_adminq.h b/lib/librte_pmd_i40e/i40e/i40e_adminq.h
index 3a59faa..27f2843 100644
--- a/lib/librte_pmd_i40e/i40e/i40e_adminq.h
+++ b/lib/librte_pmd_i40e/i40e/i40e_adminq.h
@@ -110,7 +110,6 @@ struct i40e_adminq_info {
 	enum i40e_admin_queue_err asq_last_status;
 	enum i40e_admin_queue_err arq_last_status;
 };
-#ifdef I40E_NVMUPD_SUPPORT
 
 /**
  * i40e_aq_rc_to_posix - convert errors to user-land codes
@@ -146,7 +145,6 @@ STATIC inline int i40e_aq_rc_to_posix(u16 aq_rc)
 
 	return aq_to_posix[aq_rc];
 }
-#endif
 
 /* general information */
 #define I40E_AQ_LARGE_BUF		512
diff --git a/lib/librte_pmd_i40e/i40e/i40e_nvm.c b/lib/librte_pmd_i40e/i40e/i40e_nvm.c
index 876c451..c62f5eb 100644
--- a/lib/librte_pmd_i40e/i40e/i40e_nvm.c
+++ b/lib/librte_pmd_i40e/i40e/i40e_nvm.c
@@ -478,29 +478,28 @@ enum i40e_status_code i40e_validate_nvm_checksum(struct i40e_hw *hw,
 i40e_validate_nvm_checksum_exit:
 	return ret_code;
 }
-#ifdef I40E_NVMUPD_SUPPORT
 
 STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    u8 *bytes, int *errno);
+						    u8 *bytes, int *err);
 STATIC enum i40e_status_code i40e_nvmupd_state_reading(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    u8 *bytes, int *errno);
+						    u8 *bytes, int *err);
 STATIC enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    u8 *bytes, int *errno);
+						    u8 *bytes, int *err);
 STATIC enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    int *errno);
+						    int *err);
 STATIC enum i40e_status_code i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
 						   struct i40e_nvm_access *cmd,
-						   int *errno);
+						   int *err);
 STATIC enum i40e_status_code i40e_nvmupd_nvm_write(struct i40e_hw *hw,
 						   struct i40e_nvm_access *cmd,
-						   u8 *bytes, int *errno);
+						   u8 *bytes, int *err);
 STATIC enum i40e_status_code i40e_nvmupd_nvm_read(struct i40e_hw *hw,
 						  struct i40e_nvm_access *cmd,
-						  u8 *bytes, int *errno);
+						  u8 *bytes, int *err);
 STATIC inline u8 i40e_nvmupd_get_module(u32 val)
 {
 	return (u8)(val & I40E_NVM_MOD_PNT_MASK);
@@ -515,38 +514,38 @@ STATIC inline u8 i40e_nvmupd_get_transaction(u32 val)
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command
  * @bytes: pointer to the data buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * Dispatches command depending on what update state is current
  **/
 enum i40e_status_code i40e_nvmupd_command(struct i40e_hw *hw,
 					  struct i40e_nvm_access *cmd,
-					  u8 *bytes, int *errno)
+					  u8 *bytes, int *err)
 {
 	enum i40e_status_code status;
 
 	DEBUGFUNC("i40e_nvmupd_command");
 
 	/* assume success */
-	*errno = 0;
+	*err = 0;
 
 	switch (hw->nvmupd_state) {
 	case I40E_NVMUPD_STATE_INIT:
-		status = i40e_nvmupd_state_init(hw, cmd, bytes, errno);
+		status = i40e_nvmupd_state_init(hw, cmd, bytes, err);
 		break;
 
 	case I40E_NVMUPD_STATE_READING:
-		status = i40e_nvmupd_state_reading(hw, cmd, bytes, errno);
+		status = i40e_nvmupd_state_reading(hw, cmd, bytes, err);
 		break;
 
 	case I40E_NVMUPD_STATE_WRITING:
-		status = i40e_nvmupd_state_writing(hw, cmd, bytes, errno);
+		status = i40e_nvmupd_state_writing(hw, cmd, bytes, err);
 		break;
 
 	default:
 		/* invalid state, should never happen */
 		status = I40E_NOT_SUPPORTED;
-		*errno = -ESRCH;
+		*err = -ESRCH;
 		break;
 	}
 	return status;
@@ -557,29 +556,29 @@ enum i40e_status_code i40e_nvmupd_command(struct i40e_hw *hw,
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
  * @bytes: pointer to the data buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * Process legitimate commands of the Init state and conditionally set next
  * state. Reject all other commands.
  **/
 STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    u8 *bytes, int *errno)
+						    u8 *bytes, int *err)
 {
 	enum i40e_status_code status = I40E_SUCCESS;
 	enum i40e_nvmupd_cmd upd_cmd;
 
 	DEBUGFUNC("i40e_nvmupd_state_init");
 
-	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno);
+	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, err);
 
 	switch (upd_cmd) {
 	case I40E_NVMUPD_READ_SA:
 		status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
 		if (status) {
-			*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+			*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 		} else {
-			status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno);
+			status = i40e_nvmupd_nvm_read(hw, cmd, bytes, err);
 			i40e_release_nvm(hw);
 		}
 		break;
@@ -587,9 +586,9 @@ STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 	case I40E_NVMUPD_READ_SNT:
 		status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
 		if (status) {
-			*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+			*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 		} else {
-			status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno);
+			status = i40e_nvmupd_nvm_read(hw, cmd, bytes, err);
 			hw->nvmupd_state = I40E_NVMUPD_STATE_READING;
 		}
 		break;
@@ -597,9 +596,9 @@ STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 	case I40E_NVMUPD_WRITE_ERA:
 		status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
 		if (status) {
-			*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+			*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 		} else {
-			status = i40e_nvmupd_nvm_erase(hw, cmd, errno);
+			status = i40e_nvmupd_nvm_erase(hw, cmd, err);
 			if (status)
 				i40e_release_nvm(hw);
 			else
@@ -610,9 +609,9 @@ STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 	case I40E_NVMUPD_WRITE_SA:
 		status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
 		if (status) {
-			*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+			*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 		} else {
-			status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
+			status = i40e_nvmupd_nvm_write(hw, cmd, bytes, err);
 			if (status)
 				i40e_release_nvm(hw);
 			else
@@ -623,9 +622,9 @@ STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 	case I40E_NVMUPD_WRITE_SNT:
 		status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
 		if (status) {
-			*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+			*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 		} else {
-			status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
+			status = i40e_nvmupd_nvm_write(hw, cmd, bytes, err);
 			hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING;
 		}
 		break;
@@ -633,11 +632,11 @@ STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 	case I40E_NVMUPD_CSUM_SA:
 		status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
 		if (status) {
-			*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+			*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 		} else {
 			status = i40e_update_nvm_checksum(hw);
 			if (status) {
-				*errno = hw->aq.asq_last_status ?
+				*err = hw->aq.asq_last_status ?
 				   i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
 				   -EIO;
 				i40e_release_nvm(hw);
@@ -649,7 +648,7 @@ STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
 
 	default:
 		status = I40E_ERR_NVM;
-		*errno = -ESRCH;
+		*err = -ESRCH;
 		break;
 	}
 	return status;
@@ -660,37 +659,37 @@ STATIC enum i40e_status_code i40e_nvmupd_state_init(struct i40e_hw *hw,
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
  * @bytes: pointer to the data buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * NVM ownership is already held.  Process legitimate commands and set any
  * change in state; reject all other commands.
  **/
 STATIC enum i40e_status_code i40e_nvmupd_state_reading(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    u8 *bytes, int *errno)
+						    u8 *bytes, int *err)
 {
 	enum i40e_status_code status;
 	enum i40e_nvmupd_cmd upd_cmd;
 
 	DEBUGFUNC("i40e_nvmupd_state_reading");
 
-	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno);
+	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, err);
 
 	switch (upd_cmd) {
 	case I40E_NVMUPD_READ_SA:
 	case I40E_NVMUPD_READ_CON:
-		status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno);
+		status = i40e_nvmupd_nvm_read(hw, cmd, bytes, err);
 		break;
 
 	case I40E_NVMUPD_READ_LCB:
-		status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno);
+		status = i40e_nvmupd_nvm_read(hw, cmd, bytes, err);
 		i40e_release_nvm(hw);
 		hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
 		break;
 
 	default:
 		status = I40E_NOT_SUPPORTED;
-		*errno = -ESRCH;
+		*err = -ESRCH;
 		break;
 	}
 	return status;
@@ -701,29 +700,29 @@ STATIC enum i40e_status_code i40e_nvmupd_state_reading(struct i40e_hw *hw,
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
  * @bytes: pointer to the data buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * NVM ownership is already held.  Process legitimate commands and set any
  * change in state; reject all other commands
  **/
 STATIC enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    u8 *bytes, int *errno)
+						    u8 *bytes, int *err)
 {
 	enum i40e_status_code status;
 	enum i40e_nvmupd_cmd upd_cmd;
 
 	DEBUGFUNC("i40e_nvmupd_state_writing");
 
-	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno);
+	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, err);
 
 	switch (upd_cmd) {
 	case I40E_NVMUPD_WRITE_CON:
-		status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
+		status = i40e_nvmupd_nvm_write(hw, cmd, bytes, err);
 		break;
 
 	case I40E_NVMUPD_WRITE_LCB:
-		status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
+		status = i40e_nvmupd_nvm_write(hw, cmd, bytes, err);
 		if (!status) {
 			hw->aq.nvm_release_on_done = true;
 			hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
@@ -733,7 +732,7 @@ STATIC enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
 	case I40E_NVMUPD_CSUM_CON:
 		status = i40e_update_nvm_checksum(hw);
 		if (status)
-			*errno = hw->aq.asq_last_status ?
+			*err = hw->aq.asq_last_status ?
 				   i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
 				   -EIO;
 		break;
@@ -741,7 +740,7 @@ STATIC enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
 	case I40E_NVMUPD_CSUM_LCB:
 		status = i40e_update_nvm_checksum(hw);
 		if (status) {
-			*errno = hw->aq.asq_last_status ?
+			*err = hw->aq.asq_last_status ?
 				   i40e_aq_rc_to_posix(hw->aq.asq_last_status) :
 				   -EIO;
 		} else {
@@ -752,7 +751,7 @@ STATIC enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
 
 	default:
 		status = I40E_NOT_SUPPORTED;
-		*errno = -ESRCH;
+		*err = -ESRCH;
 		break;
 	}
 	return status;
@@ -762,13 +761,13 @@ STATIC enum i40e_status_code i40e_nvmupd_state_writing(struct i40e_hw *hw,
  * i40e_nvmupd_validate_command - Validate given command
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * Return one of the valid command types or I40E_NVMUPD_INVALID
  **/
 STATIC enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
 						    struct i40e_nvm_access *cmd,
-						    int *errno)
+						    int *err)
 {
 	enum i40e_nvmupd_cmd upd_cmd;
 	u8 transaction, module;
@@ -786,7 +785,7 @@ STATIC enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
 	    (cmd->data_size > I40E_NVMUPD_MAX_DATA)) {
 		DEBUGOUT1("i40e_nvmupd_validate_command data_size %d\n",
 			cmd->data_size);
-		*errno = -EFAULT;
+		*err = -EFAULT;
 		return I40E_NVMUPD_INVALID;
 	}
 
@@ -839,10 +838,10 @@ STATIC enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
 	}
 
 	if (upd_cmd == I40E_NVMUPD_INVALID) {
-		*errno = -EFAULT;
+		*err = -EFAULT;
 		DEBUGOUT2(
-			"i40e_nvmupd_validate_command returns %d  errno: %d\n",
-			upd_cmd, *errno);
+			"i40e_nvmupd_validate_command returns %d  err: %d\n",
+			upd_cmd, *err);
 	}
 	return upd_cmd;
 }
@@ -852,13 +851,13 @@ STATIC enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw,
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
  * @bytes: pointer to the data buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * cmd structure contains identifiers and data buffer
  **/
 STATIC enum i40e_status_code i40e_nvmupd_nvm_read(struct i40e_hw *hw,
 						  struct i40e_nvm_access *cmd,
-						  u8 *bytes, int *errno)
+						  u8 *bytes, int *err)
 {
 	enum i40e_status_code status;
 	u8 module, transaction;
@@ -874,7 +873,7 @@ STATIC enum i40e_status_code i40e_nvmupd_nvm_read(struct i40e_hw *hw,
 				  bytes, last, NULL);
 	DEBUGOUT1("i40e_nvmupd_nvm_read status %d\n", status);
 	if (status != I40E_SUCCESS)
-		*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+		*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 
 	return status;
 }
@@ -883,13 +882,13 @@ STATIC enum i40e_status_code i40e_nvmupd_nvm_read(struct i40e_hw *hw,
  * i40e_nvmupd_nvm_erase - Erase an NVM module
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * module, offset, data_size and data are in cmd structure
  **/
 STATIC enum i40e_status_code i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
 						   struct i40e_nvm_access *cmd,
-						   int *errno)
+						   int *err)
 {
 	enum i40e_status_code status = I40E_SUCCESS;
 	u8 module, transaction;
@@ -904,7 +903,7 @@ STATIC enum i40e_status_code i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
 				   last, NULL);
 	DEBUGOUT1("i40e_nvmupd_nvm_erase status %d\n", status);
 	if (status != I40E_SUCCESS)
-		*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+		*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 
 	return status;
 }
@@ -914,13 +913,13 @@ STATIC enum i40e_status_code i40e_nvmupd_nvm_erase(struct i40e_hw *hw,
  * @hw: pointer to hardware structure
  * @cmd: pointer to nvm update command buffer
  * @bytes: pointer to the data buffer
- * @errno: pointer to return error code
+ * @err: pointer to return error code
  *
  * module, offset, data_size and data are in cmd structure
  **/
 STATIC enum i40e_status_code i40e_nvmupd_nvm_write(struct i40e_hw *hw,
 						   struct i40e_nvm_access *cmd,
-						   u8 *bytes, int *errno)
+						   u8 *bytes, int *err)
 {
 	enum i40e_status_code status = I40E_SUCCESS;
 	u8 module, transaction;
@@ -935,8 +934,7 @@ STATIC enum i40e_status_code i40e_nvmupd_nvm_write(struct i40e_hw *hw,
 				    (u16)cmd->data_size, bytes, last, NULL);
 	DEBUGOUT1("i40e_nvmupd_nvm_write status %d\n", status);
 	if (status != I40E_SUCCESS)
-		*errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
+		*err = i40e_aq_rc_to_posix(hw->aq.asq_last_status);
 
 	return status;
 }
-#endif
-- 
1.8.1.4

  parent reply	other threads:[~2014-09-09  7:16 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-09  7:21 [dpdk-dev] [PATCH 00/15] i40e base driver udpate Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 01/15] i40e: make the indentation more consistent in share code Helin Zhang
2014-09-09  7:21 ` Helin Zhang [this message]
2014-09-09  7:21 ` [dpdk-dev] [PATCH 03/15] i40e: remove useless code which was written for Solaris Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 04/15] i40e: remove test code for 'ethtool' Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 05/15] i40e: force a shifted '1' to be 'unsigned' Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 06/15] i40e: remove useless code for pre-boot support Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 07/15] i40e: Get rid of sparse warnings, and remove unreachable code Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 08/15] i40e: remove code which is for software validation only Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 09/15] i40e: remove code for TPH (TLP Processing Hints) Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 10/15] i40e: support of 10G base T Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 11/15] i40e: expose debug_write_register request Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 12/15] i40e: workaround of get_firmware_version, and enhancements Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 13/15] i40e: Use get_link_status to report FC settings Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 14/15] i40e: fix and enhancement in arq_event_info struct Helin Zhang
2014-09-09  7:21 ` [dpdk-dev] [PATCH 15/15] i40e: support redefined struct of 'i40e_arq_event_info' Helin Zhang
2014-09-29  2:59 ` [dpdk-dev] [PATCH 00/15] i40e base driver update Xu, HuilongX
2014-10-07 16:31 ` [dpdk-dev] [PATCH 00/15] i40e base driver udpate Thomas Monjalon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1410247299-4365-3-git-send-email-helin.zhang@intel.com \
    --to=helin.zhang@intel.com \
    --cc=dev@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).