[PATCH] net/mlx5: move to polling for LSC interrupts

[Dariusz Sosnowski]

On Mon, Oct 26, 2026 at 10:03:36AM -0700, Stephen Hemminger wrote:
> On Mon, 26 Oct 2026 17:04:00 +0100
> Dariusz Sosnowski <dsosnowski at nvidia.com> wrote:
> 
> > +/**
> > + * Retrieve the carrier state of a device.
> > + *
> > + * The IFF_RUNNING flag reported by SIOCGIFFLAGS reflects the RFC 2863
> > + * operational state, which the kernel only refreshes from its link watch
> > + * work queue and which may therefore lag the actual carrier by up to a
> > + * second. ETHTOOL_GLINK reports the carrier directly, and additionally
> > + * flushes any link watch event still pending for the device.
> > + *
> > + * @param dev
> > + *   Pointer to Ethernet device structure.
> > + *
> > + * @return
> > + *   1 if the carrier is up, 0 otherwise.
> > + *   Negative errno value is returned on error.
> > + */
> > +int
> > +mlx5_link_carrier_get(struct rte_eth_dev *dev)
> > +{
> > +	struct ethtool_value ecmd = {
> > +		.cmd = ETHTOOL_GLINK,
> > +	};
> > +	struct ifreq ifr;
> > +	int ret;
> > +
> > +	memset(&ifr, 0, sizeof(ifr));
> 
> Odd, why not use structure initialization for both?

Agreed, odd. I'll unify in v2