RE: [PATCH net-next 2/2] cxgb4: Add support for ndo_get_vf_config
From: Yuval Mintz <hidden>
Date: 2016-08-24 07:16:00
+static void fill_vf_station_mac_addr(struct adapter *adap)
+{
+ unsigned int i;
+ u8 hw_addr[ETH_ALEN], macaddr[ETH_ALEN];
+ int err;
+ u8 *na;
+ u16 a, b;
+
+ err = t4_get_raw_vpd_params(adap, &adap->params.vpd);
+ if (!err) {
+ na = adap->params.vpd.na;
+ for (i = 0; i < ETH_ALEN; i++)
+ hw_addr[i] = (hex2val(na[2 * i + 0]) * 16 +
+ hex2val(na[2 * i + 1]));
+ a = (hw_addr[0] << 8) | hw_addr[1];
+ b = (hw_addr[1] << 8) | hw_addr[2];
+ a ^= b;
+ a |= 0x0200; /* locally assigned Ethernet MAC address */
+ a &= ~0x0100; /* not a multicast Ethernet MAC address */
+ macaddr[0] = a >> 8;
+ macaddr[1] = a & 0xff;
+
+ for (i = 2; i < 5; i++)
+ macaddr[i] = hw_addr[i + 1];
+
+ for (i = 0; i < adap->num_vfs; i++) {
+ macaddr[5] = adap->pf * 16 + i;
+ ether_addr_copy(adap->vfinfo[i].vf_mac_addr,
macaddr);
+ }
+ }
+}That's some... magical magic? :-) But I couldn't see anywhere in the patch where this MAC is propagated to the VF, only to the new NDO(). Care to explain how does the VF learn it?