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[fcoe] Use only the first instance of a FIP descriptor 

Almost all FIP packets contain at most one instance of each
descriptor.  A VLAN notification may contain multiple VLAN
descriptors.  The FCoE specification does not provide any guidance
regarding prioritisation of VLANs, so we may choose to arbitrarily
choose the first listed VLAN.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/1/head
Michael Brown 2010-11-27 15:48:01 +00:00
parent c5c0a27b68
commit 54ec712ebe
1 changed files with 3 additions and 1 deletions
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4
src/net/fcoe.c
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@ -533,7 +533,9 @@ static int fcoe_fip_parse ( struct fcoe_port *fcoe, struct fip_header *fiphdr,
/* Handle descriptors that we understand */
if ( ( desc_type > FIP_RESERVED ) &&
( desc_type < FIP_NUM_DESCRIPTOR_TYPES ) ) {
descs->desc[desc_type] = desc;
/* Use only the first instance of a descriptor */
if ( descs->desc[desc_type] == NULL )
descs->desc[desc_type] = desc;
continue;
}