Re: [dpdk-dev] [PATCH] fm10k: enable PCIe port level Loopback Suppression

["Chen, Jing D" <jing.d.chen@intel.com>]

Hi,

Best Regards,
Mark


> -----Original Message-----
> From: He, Shaopeng
> Sent: Thursday, January 28, 2016 1:49 PM
> To: dev@dpdk.org
> Cc: Chen, Jing D; Wang, Xiao W; He, Shaopeng
> Subject: [PATCH] fm10k: enable PCIe port level Loopback Suppression
> 
> A PCIe port may represent within it multiple logical ports
> (for example when SR-IOV is enabled, or when a VMDQ type logical
> port scheme is employed assigning ports to sets of queues).
> For this reason each RX queue in each PCIe port is given a source
> GLORT that is used for loopback suppression.
> This patch assigns a SGLORT for each RX queue, and enables PCIe
> port level Loopback Suppression.
> 

The log message is a little obscure for me. Maybe you can wrote:
In FM10K, a single PF device can derive out a few logical ports, like SRIOV
VF device, VMDQ object. To better manage them, FM10K silicon assigned a
Unique GLORT ID to each logical ports. 
When a logical port sends a broadcast packet, the silicon will flood it to all
Logical ports, including the one sent the broadcast packet. To prevent this,
silicon has a rxq register to fill the glort id of the logical port that queue binds 
to....

> Signed-off-by: Shaopeng He <shaopeng.he@intel.com>
> ---
>  drivers/net/fm10k/fm10k_ethdev.c | 18 +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> b/drivers/net/fm10k/fm10k_ethdev.c
> index f6eb05d..60f821a 100644
> --- a/drivers/net/fm10k/fm10k_ethdev.c
> +++ b/drivers/net/fm10k/fm10k_ethdev.c
> @@ -690,12 +690,15 @@ static int
>  fm10k_dev_rx_init(struct rte_eth_dev *dev)