Re: [dpdk-dev] i40e and memory allocations restricted on node 1

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

> -----Original Message-----
> From: Ivan Nardi [mailto:nardi.ivan@gmail.com]
> Sent: Tuesday, February 7, 2017 5:04 AM
> To: dev@dpdk.org
> Cc: Zhang, Helin; Wu, Jingjing
> Subject: i40e and memory allocations restricted on node 1
> 
> Hi
> With dpdk 17.02-rc2 i40e driver doesn't load at all when memory allocation is
> restricted on numa node 1 (on system with more than 1 node, obviously)
> 
> 
> [root@micro ~]# /tmp/testpmd -d /home/micro/lib/librte_pmd_i40e.so -c
> 0xFFFC000 -w 0000:81:00.0  -w 0000:81:00.1 -n 4 --socket-mem=0,8192 -- -i --
> socket-num=1
> EAL: Detected 56 lcore(s)
> EAL: Probing VFIO support...
> EAL: PCI device 0000:81:00.0 on NUMA socket 1
> EAL:   probe driver: 8086:1572 net_i40e
> PMD: eth_i40e_dev_init(): FW 4.40 API 1.4 NVM 04.05.03 eetrack 80001cd8
This is a very old verion of firmware, it may have compatibility issue.
So first, firmware upgrade is needed.

> RING: Cannot reserve memory
It seems not reserve memory for ring, and not an issue specifically to i40e.
Let's double check that if it is common to all.

> HASH: memory allocation failed
> PMD: i40e_init_ethtype_filter_list(): Failed to create ethertype hash table!
> EAL: Error - exiting with code: 1
>   Cause: Requested device 0000:81:00.0 cannot be used
> 
> 
> Everything is fine with 16.11, or allowing allocations from both nodes
> 
> I was able to locate the code to fix (at least, I hope so), but I don't really
> know if it is better to allocate from SOCKET_ID_ANY of from the exact node
> associated with the network device, something like
> dev->data->numa_node ("pseudo" patch below)
> 
> 
> --- dpdk-17.02-rc2.orig/drivers/net/i40e/i40e_ethdev.c    2017-01-30
> 23:47:11.000000000 +0100
> +++ dpdk-17.02-rc2/drivers/net/i40e/i40e_ethdev.c    2017-02-06
> 21:53:37.812313120 +0100
> @@ -899,6 +899,7 @@
>          .entries = I40E_MAX_ETHERTYPE_FILTER_NUM,
>          .key_len = sizeof(struct i40e_ethertype_filter_input),
>          .hash_func = rte_hash_crc,
> +        .socket_id = SOCKET_ID_ANY,
>      };
> 
>      /* Initialize ethertype filter rule list and hash */ @@ -942,6 +943,7 @@
>          .entries = I40E_MAX_TUNNEL_FILTER_NUM,
>          .key_len = sizeof(struct i40e_tunnel_filter_input),
>          .hash_func = rte_hash_crc,
> +        .socket_id = SOCKET_ID_ANY,
>      };
> 
>      /* Initialize tunnel filter rule list and hash */ @@ -985,6 +987,7 @@
>          .entries = I40E_MAX_FDIR_FILTER_NUM,
>          .key_len = sizeof(struct rte_eth_fdir_input),
>          .hash_func = rte_hash_crc,
> +        .socket_id = SOCKET_ID_ANY,
>      };
> 
>      /* Initialize flow director filter rule list and hash */
> 
> 
> 
> Any thoughts?
> Thanks in advance
> Ivan