I want to use iSER on vSphere 6.0 environment.
I was setup SX6036G to enable PFC and PFC priority 3 & all ethernet port to support it.
But iSER initiator can see iSER Target but can’t connect to LUN.
I think last step is ESXi host configuration.
mlx4_en driver have a pfc configurtaion and here is some options.
esxcli system module parameters list -m=mlx4_en
Name Type Value Description
enable_device_rss int Enable device RSS (1 - enabled, 0 - disabled, default: 0)
This mode is not compatible with NETQ RSS. Once activated, NETQ RSS is disabled and all rings are managed by RSS
heap_initial int Initial heap size allocated for the driver.
heap_max int Maximum attainable heap size for the driver.
inline_thold uint threshold for using inline data
pfcrx int Priority based Flow Control policy on RX (0x0-0xff, default: 0x0)
It’s 8 bits bit mask, each bit indicates priority [0-7]. Bit value:
1 - respect pause frames on the specified priority.
0 - ignore pause frames on the specified priority.
pfctx int Priority based Flow Control policy on TX (0x0-0xff, default: 0x0)
It’s 8 bits bit mask, each bit indicates priority [0-7]. Bit value:
1 - respect pause frames on the specified priority.
0 - ignore pause frames on the specified priority.
rx_ring_size int RX ring size (64 -8192, default: 512)
Must be power of 2
skb_mpool_initial int Driver’s minimum private socket buffer memory pool size.
skb_mpool_max int Maximum attainable private socket buffer memory pool size for the driver.
tx_ring_size int TX ring size (64 -8192, default: 512)
Must be power of 2
udp_rss int Enable RSS for incoming UDP traffic (1 - enabled, 0 - disabled, default: 1)
How can I configure pfcrx, pfctx?
I tried pfcrx = 3, pfctx = 3 and pfcrx = 0x08, pfctx = 0x08
But 0x08 value shows a error in host profile because that’s not a supported values…:(
I found link in this communities.
HowTo Run RoCE and TCP over L2 Enabled with PFC https://community.mellanox.com/s/article/howto-run-roce-and-tcp-over-l2-enabled-with-pfc
How can I configure specific VLAN acts a loseless network with PFC?
Message was edited by: Jae-Hoon Choi
