[dpdk-dev] [PATCH v13 6/8] ethdev: redesign link speed config
Xing, Beilei
beilei.xing at intel.com
Tue Mar 29 08:18:32 CEST 2016
> -----Original Message-----
> From: Marc Sune [mailto:marcdevel at gmail.com]
> Sent: Saturday, March 26, 2016 9:27 AM
> To: Thomas Monjalon <thomas.monjalon at 6wind.com>; Xu, Qian Q
> <qian.q.xu at intel.com>; Xing, Beilei <beilei.xing at intel.com>; dev at dpdk.org;
> Ananyev, Konstantin <konstantin.ananyev at intel.com>; Lu, Wenzhuo
> <wenzhuo.lu at intel.com>; Richardson, Bruce <bruce.richardson at intel.com>;
> Glynn, Michael J <michael.j.glynn at intel.com>
> Cc: Marc Sune <marcdevel at gmail.com>
> Subject: [PATCH v13 6/8] ethdev: redesign link speed config
>
> a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
> index a98e8eb..6cc2da0 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> @@ -2193,32 +2195,21 @@ ixgbe_dev_start(struct rte_eth_dev *dev)
> if (err)
> goto error;
>
> + speed = 0x0;
> + if (*link_speeds & ETH_LINK_SPEED_10G)
> + speed |= IXGBE_LINK_SPEED_10GB_FULL;
> + if (*link_speeds & ETH_LINK_SPEED_1G)
> + speed |= IXGBE_LINK_SPEED_1GB_FULL;
> + if (*link_speeds & ETH_LINK_SPEED_100M)
> + speed |= IXGBE_LINK_SPEED_100_FULL;
> +
> err = ixgbe_setup_link(hw, speed, link_up);
> if (err)
> goto error;
Hi Marc,
According to ixgbe HW, link speed shouldn't be 0 when setting up,
Otherwise device will start fail. So we need to set speed if link_speed
is ETH_LINK_SPEED_AUTONEG. Following code is for reference.
speed = 0x0;
if ((*link_speeds & 0x1) == ETH_LINK_SPEED_AUTONEG)
speed = (hw->mac.type != ixgbe_mac_82598EB) ?
IXGBE_LINK_SPEED_82599_AUTONEG :
IXGBE_LINK_SPEED_82598_AUTONEG;
else {
if (*link_speeds & ETH_LINK_SPEED_10G)
speed |= IXGBE_LINK_SPEED_10GB_FULL;
if (*link_speeds & ETH_LINK_SPEED_1G)
speed |= IXGBE_LINK_SPEED_1GB_FULL;
if (*link_speeds & ETH_LINK_SPEED_100M)
speed |= IXGBE_LINK_SPEED_100_FULL;
}
Beilei Xing
Thanks
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