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