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[fc] Do not use the command reference number in FCP_CMND IUs

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The FCP command reference number is intended to be used for
controlling precise delivery of FCP commands, rather than being an
essentially arbitrary tag field (as with iSCSI and SRP).

Use the Fibre Channel local exchange ID as the tag for FCP commands,
instead of the FCP command reference.  The local exchange ID does not
appear within the FCP IU itself, but does appear within the FC frame
header; debug traces can therefore still be correlated with packet
captures.

Reported-by: Hadar Hen Zion <hadarh@mellanox.co.il>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-10-19 18:35:46 +01:00
parent 4995ffa438
commit b0e434280e
3 changed files with 65 additions and 62 deletions
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4
src/net/fc.c
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@@ -703,7 +703,7 @@ static struct fc_exchange * fc_xchg_create ( struct fc_port *port,
* @v parent Interface to which to attach
* @v port Fibre Channel port
* @v peer_port_id Peer port ID
* @ret rc Return status code
* @ret xchg_id Exchange ID, or negative error
*/
int fc_xchg_originate ( struct interface *parent, struct fc_port *port,
struct fc_port_id *peer_port_id, unsigned int type ) {
@@ -722,7 +722,7 @@ int fc_xchg_originate ( struct interface *parent, struct fc_port *port,
/* Attach to parent interface and return */
intf_plug_plug ( &xchg->ulp, parent );
return 0;
return xchg->xchg_id;
}
/**