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/*
* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*
* Linux driver for Brocade Fibre Channel Host Bus Adapter.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) Version 2 as
* published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
/**
* bfa_fcs_uf.c BFA FCS UF ( Unsolicited Frames)
*/
#include <fcs/bfa_fcs.h>
#include <bfa_svc.h>
#include <fcs/bfa_fcs_fabric.h>
#include "fcs.h"
#include "fcs_trcmod.h"
#include "fcs_fabric.h"
#include "fcs_uf.h"
BFA_TRC_FILE(FCS, UF);
/**
* BFA callback for unsolicited frame receive handler.
*
* @param[in] cbarg callback arg for receive handler
* @param[in] uf unsolicited frame descriptor
*
* @return None
*/
static void
bfa_fcs_uf_recv(void *cbarg, struct bfa_uf_s *uf)
{
struct bfa_fcs_s *fcs = (struct bfa_fcs_s *) cbarg;
struct fchs_s *fchs = bfa_uf_get_frmbuf(uf);
u16 len = bfa_uf_get_frmlen(uf);
struct fc_vft_s *vft;
struct bfa_fcs_fabric_s *fabric;
/**
* check for VFT header
*/
if (fchs->routing == FC_RTG_EXT_HDR &&
fchs->cat_info == FC_CAT_VFT_HDR) {
bfa_stats(fcs, uf.tagged);
vft = bfa_uf_get_frmbuf(uf);
if (fcs->port_vfid == vft->vf_id)
fabric = &fcs->fabric;
else
fabric = bfa_fcs_vf_lookup(fcs, (u16) vft->vf_id);
/**
* drop frame if vfid is unknown
*/
if (!fabric) {
bfa_assert(0);
bfa_stats(fcs, uf.vfid_unknown);
bfa_uf_free(uf);
return;
}
/**
* skip vft header
*/
fchs = (struct fchs_s *) (vft + 1);
len -= sizeof(struct fc_vft_s);
bfa_trc(fcs, vft->vf_id);
} else {
bfa_stats(fcs, uf.untagged);
fabric = &fcs->fabric;
}
bfa_trc(fcs, ((u32 *) fchs)[0]);
bfa_trc(fcs, ((u32 *) fchs)[1]);
bfa_trc(fcs, ((u32 *) fchs)[2]);
bfa_trc(fcs, ((u32 *) fchs)[3]);
bfa_trc(fcs, ((u32 *) fchs)[4]);
bfa_trc(fcs, ((u32 *) fchs)[5]);
bfa_trc(fcs, len);
bfa_fcs_fabric_uf_recv(fabric, fchs, len);
bfa_uf_free(uf);
}
void
bfa_fcs_uf_attach(struct bfa_fcs_s *fcs)
{
bfa_uf_recv_register(fcs->bfa, bfa_fcs_uf_recv, fcs);
}
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