Re: [dpdk-dev] [DPDK v3] net/ipn3ke: modifications on AFU configurations

["Xu, Rosen" <rosen.xu@intel.com>]

> -----Original Message-----
> From: Wei, Dan
> Sent: Saturday, June 22, 2019 22:25
> To: dev@dpdk.org
> Cc: Yigit, Ferruh <ferruh.yigit@intel.com>; Chen, Santos
> <santos.chen@intel.com>; Wei, Dan <dan.wei@intel.com>; Xu, Rosen
> <rosen.xu@intel.com>; stable@dpdk.org
> Subject: [DPDK v3] net/ipn3ke: modifications on AFU configurations
> 
> Modify AFU configurations for new BBS(Blue Bitstream) of A10 on N3000
> card:
> - AFU register access: RTL changes the UPL(User Programable Logic which is
> the container of vBNG IP) base address and the read/write commands of
> register indirect access.
> - Poll the INIT_STS register to wait for the vBNG IP and DDR reset completion.
> - Refine log for debug: print UPL_version not only for vBNG bit stream, but
> also for other bit streams.
> 
> Fixes: c01c748e4ae6 ("net/ipn3ke: add new driver")
> Cc: rosen.xu@intel.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Dan Wei <dan.wei@intel.com>
> ---
>  drivers/net/ipn3ke/ipn3ke_ethdev.c | 35
> ++++++++++++++++++++++++++++++++---
>  drivers/net/ipn3ke/ipn3ke_ethdev.h | 12 ++++++++----
>  drivers/net/ipn3ke/ipn3ke_flow.c   |  1 +
>  3 files changed, 41 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/net/ipn3ke/ipn3ke_ethdev.c
> b/drivers/net/ipn3ke/ipn3ke_ethdev.c
> index 9079b57..ac8ecc2 100644
> --- a/drivers/net/ipn3ke/ipn3ke_ethdev.c
> +++ b/drivers/net/ipn3ke/ipn3ke_ethdev.c
> @@ -192,6 +192,26 @@
>  }
> 
>  static int
> +ipn3ke_vbng_init_done(struct ipn3ke_hw *hw) {
> +	uint32_t timeout = 10000;
> +	while (timeout > 0) {
> +		if (IPN3KE_READ_REG(hw, IPN3KE_VBNG_INIT_STS)
> +			== IPN3KE_VBNG_INIT_DONE)
> +			break;
> +		rte_delay_us(1000);
> +		timeout--;
> +	}
> +
> +	if (!timeout) {
> +		IPN3KE_AFU_PMD_ERR("IPN3KE vBNG INIT timeout.\n");
> +		return -1;
> +	}
> +
> +	return 0;
> +}
> +
> +static int
>  ipn3ke_hw_init(struct rte_afu_device *afu_dev,
>  	struct ipn3ke_hw *hw)
>  {
> @@ -223,15 +243,24 @@
>  				"LineSideMACType", &mac_type);
>  	hw->retimer.mac_type = (int)mac_type;
> 
> +	IPN3KE_AFU_PMD_DEBUG("UPL_version is 0x%x\n",
> IPN3KE_READ_REG(hw, 0));
> +
>  	if (afu_dev->id.uuid.uuid_low == IPN3KE_UUID_VBNG_LOW &&
>  		afu_dev->id.uuid.uuid_high == IPN3KE_UUID_VBNG_HIGH) {
> +		/* After power on, wait until init done */
> +		if (ipn3ke_vbng_init_done(hw))
> +			return -1;
> +
>  		ipn3ke_hw_cap_init(hw);
> -		IPN3KE_AFU_PMD_DEBUG("UPL_version is 0x%x\n",
> -			IPN3KE_READ_REG(hw, 0));
> 
> -		/* Reset FPGA IP */
> +		/* Reset vBNG IP */
>  		IPN3KE_WRITE_REG(hw, IPN3KE_CTRL_RESET, 1);
> +		rte_delay_us(10);
>  		IPN3KE_WRITE_REG(hw, IPN3KE_CTRL_RESET, 0);
> +
> +		/* After reset, wait until init done */
> +		if (ipn3ke_vbng_init_done(hw))
> +			return -1;
>  	}
> 
>  	if (hw->retimer.mac_type ==
> IFPGA_RAWDEV_RETIMER_MAC_TYPE_10GE_XFI) { diff --git
> a/drivers/net/ipn3ke/ipn3ke_ethdev.h
> b/drivers/net/ipn3ke/ipn3ke_ethdev.h
> index bfda9d5..29ab41c 100644
> --- a/drivers/net/ipn3ke/ipn3ke_ethdev.h
> +++ b/drivers/net/ipn3ke/ipn3ke_ethdev.h
> @@ -344,7 +344,8 @@ static inline uint32_t ipn3ke_read_addr(volatile void
> *addr)
> 
>  #define WCMD 0x8000000000000000
>  #define RCMD 0x4000000000000000
> -#define UPL_BASE 0x10000
> +#define INDRCT_CTRL 0x30
> +#define INDRCT_STS 0x38
>  static inline uint32_t _ipn3ke_indrct_read(struct ipn3ke_hw *hw,
>  		uint32_t addr)
>  {
> @@ -355,13 +356,13 @@ static inline uint32_t _ipn3ke_indrct_read(struct
> ipn3ke_hw *hw,
> 
>  	word_offset = (addr & 0x1FFFFFF) >> 2;
>  	indirect_value = RCMD | word_offset << 32;
> -	indirect_addrs = hw->hw_addr + (uint32_t)(UPL_BASE | 0x10);
> +	indirect_addrs = hw->hw_addr + (uint32_t)(INDRCT_CTRL);
> 
>  	rte_delay_us(10);
> 
>  	rte_write64((rte_cpu_to_le_64(indirect_value)), indirect_addrs);
> 
> -	indirect_addrs = hw->hw_addr + (uint32_t)(UPL_BASE | 0x18);
> +	indirect_addrs = hw->hw_addr + (uint32_t)(INDRCT_STS);
>  	while ((read_data >> 32) != 1)
>  		read_data = rte_read64(indirect_addrs);
> 
> @@ -377,7 +378,7 @@ static inline void _ipn3ke_indrct_write(struct
> ipn3ke_hw *hw,
> 
>  	word_offset = (addr & 0x1FFFFFF) >> 2;
>  	indirect_value = WCMD | word_offset << 32 | value;
> -	indirect_addrs = hw->hw_addr + (uint32_t)(UPL_BASE | 0x10);
> +	indirect_addrs = hw->hw_addr + (uint32_t)(INDRCT_CTRL);
> 
>  	rte_write64((rte_cpu_to_le_64(indirect_value)), indirect_addrs);
>  	rte_delay_us(10);
> @@ -410,6 +411,9 @@ static inline void _ipn3ke_indrct_write(struct
> ipn3ke_hw *hw,  #define IPN3KE_DEV_PRIVATE_TO_TM(dev) \
>  	(&(((struct ipn3ke_rpst *)(dev)->data->dev_private)->tm))
> 
> +#define IPN3KE_VBNG_INIT_DONE                      (0x3)
> +#define IPN3KE_VBNG_INIT_STS                      (0x204)
> +
>  /* Byte address of IPN3KE internal module */
>  #define IPN3KE_TM_VERSION                     (IPN3KE_QM_OFFSET + 0x0000)
>  #define IPN3KE_TM_SCRATCH                     (IPN3KE_QM_OFFSET + 0x0004)
> diff --git a/drivers/net/ipn3ke/ipn3ke_flow.c
> b/drivers/net/ipn3ke/ipn3ke_flow.c
> index e5937df..ff9f064 100644
> --- a/drivers/net/ipn3ke/ipn3ke_flow.c
> +++ b/drivers/net/ipn3ke/ipn3ke_flow.c
> @@ -1360,6 +1360,7 @@ int ipn3ke_flow_init(void *dev)
>  						IPN3KE_CLF_EM_NUM,
>  						0,
>  						0xFFFFFFFF);
> +	IPN3KE_AFU_PMD_DEBUG("IPN3KE_CLF_EN_NUM: %x\n", hw-
> >flow_max_entries);
>  	hw->flow_num_entries = 0;
> 
>  	return 0;
> --
> 1.8.3.1

Acked-by: Rosen Xu <rosen.xu@intel.com>