Re: [dpdk-dev] [PATCH] igb_ethdev.c: complete switches for i211 NC

["Zhang, Helin" <helin.zhang@intel.com>]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Sergey Mironov
> Sent: Thursday, September 4, 2014 4:35 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH] igb_ethdev.c: complete switches for i211 NC
> 
> Hi! I have got an update for my "i212 problem". First of all, I found that I have
> made a mistake. My controller is named i211, not i212 :) Next, i211 controller is
> controlled by the lib_pmd_e1000 driver.
> Unfortunately, looks like it's support is pure. For example, igb_ethdev.c
> contains function eth_igb_infos_get() which should set number of tx/rx queues
> supported by the hardware. It contains huge [switch] but there is no i211 case!
> That is why I see zeros every time I try to start this NC. Also, there are few
> other places which mention i210, but not mention i211. I've attached a patch
> which adds necessary
> i211 support, but I didn't check it enough to say it is totally correct. For now I
> see that it just able to send and receive some packets.
> 
> Could you please review/correct it?
> ---
>  lib/librte_pmd_e1000/igb_ethdev.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/librte_pmd_e1000/igb_ethdev.c
> b/lib/librte_pmd_e1000/igb_ethdev.c
> index f93a460..23e638d 100644
> --- a/lib/librte_pmd_e1000/igb_ethdev.c
> +++ b/lib/librte_pmd_e1000/igb_ethdev.c
> @@ -689,7 +689,8 @@ eth_igb_start(struct rte_eth_dev *dev)
>  	 * value of Write-Back Threshold registers.
>  	 */
>  	if ((hw->mac.type == e1000_82576) || (hw->mac.type == e1000_82580) ||
> -		(hw->mac.type == e1000_i350) || (hw->mac.type == e1000_i210)) {
> +		(hw->mac.type == e1000_i350) || (hw->mac.type == e1000_i210) ||
> +    (hw->mac.type == e1000_i211)) {
>  		uint32_t ivar;
> 
>  		/* Enable all RX & TX queues in the IVAR registers */ @@ -837,7
> +838,7 @@ igb_get_rx_buffer_size(struct e1000_hw *hw)
>  		rx_buf_size = (E1000_READ_REG(hw, E1000_RXPBS) & 0xf);
>  		rx_buf_size = (uint32_t) e1000_rxpbs_adjust_82580(rx_buf_size);
>  		rx_buf_size = (rx_buf_size << 10);
> -	} else if (hw->mac.type == e1000_i210) {
> +	} else if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) {
>  		rx_buf_size = (E1000_READ_REG(hw, E1000_RXPBS) & 0x3f) << 10;
>  	} else {
>  		rx_buf_size = (E1000_READ_REG(hw, E1000_PBA) & 0xffff) << 10;
> @@ -1179,6 +1180,12 @@ eth_igb_infos_get(struct rte_eth_dev *dev,
>  		dev_info->max_vmdq_pools = 0;
>  		break;
> 
> +	case e1000_i211:
> +		dev_info->max_rx_queues = 2;
> +		dev_info->max_tx_queues = 2;
> +		dev_info->max_vmdq_pools = 0;
> +		break;
> +
>  	case e1000_vfadapt:
>  		dev_info->max_rx_queues = 2;
>  		dev_info->max_tx_queues = 2;
> --
> 1.8.4.3


Reviewed-by: Helin Zhang <helin.zhang@intel.com>

Really good to have this patch of supporting i211! Thank you very much!

Regards,
Helin