LS1043A 查看 MAC、BMI、QMI寄存器, 查看网口发包丢包情况

参考手册：QorIQ LS1043A Data Path Acceleration Architecture (DPAA) Reference Manual

MAC/BMI/QMI寄存器组成都是由下面3个部分组成的

The full register address of any DPAA register consists of all of the following:
• CCSR window base address, specified in CCSRBAR (default address 0_0100_0000h)
• Block base address
• The specific register’s offset within that block

MAC/BMI/QMI寄存器都是FMan memory map的一部分。

 针对MAC而言，每个网口，对应不同的 基地址 ，下面红框，是访问MAC寄存器要用哪个到的 

从下面的Map 可以看出来，QMI 和 BMI 的基地址是一样的，就是offset 不一样 

1、MAC 寄存器

    MAC1  0x01A0_0000 + 0xE_0000 + offset = 0x01AE0000
    MAC2  0x01A0_0000 + 0xE_2000 + offset = 0x01AE2000
    MAC3  0x01A0_0000 + 0xE_4000 + offset = 0x01AE4000
    MAC4  0x01A0_0000 + 0xE_6000 + offset = 0x01AE6000
    MAC5  0x01A0_0000 + 0xE_8000 + offset = 0x01AE8000
    MAC6  0x01A0_0000 + 0xE_A000 + offset = 0x01AEA000

然后参考手册中 6.4.2 mEMAC Detailed Memory Map ，

offset  0x100开始是Rx Statistics Counter Registers；

offset  0x200开始是Tx Statistics Counter Registers。

比如我想看下 RX ERR 相关的统计

6.4.2 mEMAC Detailed Memory Map

6.4.3.2.8 Receive Frame Error Counter Register (RERRn)
	offset 0x138  0x13c

	Incremented for each frame received with an error (except for undersized/fragment frame) :
	• FIFO overflow error
	• CRC error
	• Payload length error
	• Jabber and oversized error
	• Alignment error (if supported)
	• Reception of PHY/PCS error indication (0xFE, not a code error)

注意返回的结果是大端显示

MAC1:
	# devmem 0x01AE013C 32
	0x00000000
	# devmem 0x01AE0138 32
	0x00000000
	
MAC2:
    # devmem 0x01AE213C 32
	0x00000000
	# devmem 0x01AE2138  32
	0x00000000

同样的 TX 也有一个相关的统计 

6.4.3.2.33 Transmit Frame Error Counter Register (TERRn)
Incremented for each frame transmitted with an error:
• FIFO overflow error
• FIFO underflow error
• memory double ECC errors

注意返回的结果是大端显示

MAC1:
	# devmem 0x01AE023C 32
	0x00000000
	# devmem 0x01AE0238 32
	0x00000000
	
MAC2:
    # devmem 0x01AE223C 32
	0x00000000
	# devmem 0x01AE2238  32
	0x00000000

 2、BMI/QMI 寄存器

BMI/QMI rx port寄存器, 不同的MAC 对应rx_port_id 不一样，见上面的图。

0x01000000 + 0x1A00000 + 0x80000 + 0x01000* rx_port_id + offset

BMI/QMI  tx port寄存器, 不同的MAC 对应tx_port_id 不一样，见上面的图。

0x1A00000 + 0x80000 + 0x01000* tx_port_id + offset

BMI Rx port寄存器请参考手册章节BMI Rx Port Registers部分，0x200开始是一些统计。

BMI Tx port寄存器请参考手册章节 BMI Tx Port Registers部分，0x200开始是一些统计。

QMI Rx port寄存器请参考手册章节 QMI Rx Port Registers部分，0x41c和0x420是一些统计。

QMI Tx port寄存器请参考手册章节 QMI Tx Port Registers部分，0x41c开始是一些统计。
 

3、检测脚本

big_endian_to_little()
{
   byte1=`echo $1 | cut -b 3-4`
   byte2=`echo $1 | cut -b 5-6`
   byte3=`echo $1 | cut -b 7-8`
   byte4=`echo $1 | cut -b 9-10`
   echo "0x${byte4}${byte3}${byte2}${byte1}"
}

echo "Receive Frame Packet Counter Check!"
echo "[QSGMII][MAC1] Low  32bit: `big_endian_to_little $(devmem 0x01AE0120 32)`"
echo "[QSGMII][MAC2] Low  32bit: `big_endian_to_little $(devmem 0x01AE2120 32)`"
echo "[RGMII] [MAC3] Low  32bit: `big_endian_to_little $(devmem 0x01AE4120 32)`"
echo "[RGMII] [MAC4] Low  32bit: `big_endian_to_little $(devmem 0x01AE6120 32)`"
echo "[QSGMII][MAC5] Low  32bit: `big_endian_to_little $(devmem 0x01AE8120 32)`"
echo "[QSGMII][MAC6] Low  32bit: `big_endian_to_little $(devmem 0x01AEa120 32)`"
 
echo "Receive Frame Error Counter Check!"
echo "[QSGMII][MAC1] Low  32bit: `big_endian_to_little $(devmem 0x01AE0138 32)`"
echo "[QSGMII][MAC2] Low  32bit: `big_endian_to_little $(devmem 0x01AE2138 32)`"
echo "[RGMII] [MAC3] Low  32bit: `big_endian_to_little $(devmem 0x01AE4138 32)`"
echo "[RGMII] [MAC4] Low  32bit: `big_endian_to_little $(devmem 0x01AE6138 32)`"
echo "[QSGMII][MAC5] Low  32bit: `big_endian_to_little $(devmem 0x01AE8138 32)`"
echo "[QSGMII][MAC6] Low  32bit: `big_endian_to_little $(devmem 0x01AEa138 32)`"
echo ""
 
echo "Transmit Frame Packet Counter Check!"
echo "[QSGMII][MAC1] Low  32bit: `big_endian_to_little $(devmem 0x01AE0260 32)`"
echo "[QSGMII][MAC2] Low  32bit: `big_endian_to_little $(devmem 0x01AE2260 32)`"
echo "[RGMII] [MAC3] Low  32bit: `big_endian_to_little $(devmem 0x01AE4260 32)`"
echo "[RGMII] [MAC4] Low  32bit: `big_endian_to_little $(devmem 0x01AE6260 32)`"
echo "[QSGMII][MAC5] Low  32bit: `big_endian_to_little $(devmem 0x01AE8260 32)`"
echo "[QSGMII][MAC6] Low  32bit: `big_endian_to_little $(devmem 0x01AEa260 32)`"

echo "Transmit Frame Error Counter Check!"
echo "[QSGMII][MAC1] Low  32bit: `big_endian_to_little $(devmem 0x01AE0238 32)`"
echo "[QSGMII][MAC2] Low  32bit: `big_endian_to_little $(devmem 0x01AE2238 32)`"
echo "[RGMII] [MAC3] Low  32bit: `big_endian_to_little $(devmem 0x01AE4238 32)`"
echo "[RGMII] [MAC4] Low  32bit: `big_endian_to_little $(devmem 0x01AE6238 32)`"
echo "[QSGMII][MAC5] Low  32bit: `big_endian_to_little $(devmem 0x01AE8238 32)`"
echo "[QSGMII][MAC6] Low  32bit: `big_endian_to_little $(devmem 0x01AEa238 32)`"

最后

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