Attachment 222466 Details for Bug 253535 – em VF MAC address patch

[patch] em VF MAC address patch

if_em_vf_mac.patch (text/plain), 1.10 KB, created by Balaev PA on 2021-02-15 13:22:19 UTC

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Creator: Balaev PA

Created: 2021-02-15 13:22:19 UTC

Size: 1.10 KB

patch

obsolete

>diff --git a/sys/dev/e1000/if_em.c b/sys/dev/e1000/if_em.c
>index b24280dae..7ca3e8645 100644
>--- a/sys/dev/e1000/if_em.c
>+++ b/sys/dev/e1000/if_em.c
>@@ -1065,11 +1065,21 @@ em_if_attach_pre(if_ctx_t ctx)
> 	}
> 
> 	if (!em_is_valid_ether_addr(hw->mac.addr)) {
>-		device_printf(dev, "Invalid MAC address\n");
>-		error = EIO;
>-		goto err_late;
>+		if (adapter->vf_ifp) {
>+			u8 addr[ETHER_ADDR_LEN];
>+			device_printf(dev, "Generate a random address\n");
>+			arc4rand(&addr, sizeof(addr), 0);
>+			addr[0] &= 0xFE; /* unicast */
>+			addr[0] |= 0x02; /* locally administrated */
>+			bcopy(addr, adapter->hw.mac.addr, sizeof(addr));
>+		} else {
>+			device_printf(dev, "Invalid MAC address\n");
>+			error = EIO;
>+			goto err_late;
>+		}
> 	}
> 
>+
> 	/* Disable ULP support */
> 	e1000_disable_ulp_lpt_lp(hw, TRUE);
> 
>@@ -1927,6 +1937,13 @@ em_identify_hardware(if_ctx_t ctx)
> 		device_printf(dev, "Setup init failure\n");
> 		return;
> 	}
>+
>+	/* Are we a VF device? */
>+	if ((adapter->hw.mac.type == e1000_vfadapt) ||
>+	    (adapter->hw.mac.type == e1000_vfadapt_i350))
>+		adapter->vf_ifp = 1;
>+	else
>+		adapter->vf_ifp = 0;
> }
> 
> static int

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Attachments on bug 253535: 222466