static void qedf_process_l2_frame_compl(struct qedf_rport *fcport,
struct fc_frame *fp,
u16 l2_oxid)
{
struct fc_lport *lport = fcport->qedf->lport;
struct fc_frame_header *fh;
u32 crc;
fh = (struct fc_frame_header *)fc_frame_header_get(fp);
/* Set the OXID we return to what libfc used */
if (l2_oxid != FC_XID_UNKNOWN)
fh->fh_ox_id = htons(l2_oxid);
/* Setup header fields */
fh->fh_r_ctl = FC_RCTL_ELS_REP;
fh->fh_type = FC_TYPE_ELS;
/* Last sequence, end sequence */
fh->fh_f_ctl[0] = 0x98;
hton24(fh->fh_d_id, lport->port_id);
hton24(fh->fh_s_id, fcport->rdata->ids.port_id);
fh->fh_rx_id = 0xffff;
/* Set frame attributes */
crc = fcoe_fc_crc(fp);
fc_frame_init(fp);
fr_dev(fp) = lport;
fr_sof(fp) = FC_SOF_I3;
fr_eof(fp) = FC_EOF_T;
fr_crc(fp) = cpu_to_le32(~crc);
/* Send completed request to libfc */
fc_exch_recv(lport, fp);
}
/*
* Check the CRC in a frame.
*/
u32 fc_frame_crc_check(struct fc_frame *fp)
{
u32 crc;
u32 error;
const u8 *bp;
unsigned int len;
WARN_ON(!fc_frame_is_linear(fp));
fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
len = (fr_len(fp) + 3) & ~3; /* round up length to include fill */
bp = (const u8 *) fr_hdr(fp);
crc = ~crc32(~0, bp, len);
error = crc ^ fr_crc(fp);
return error;
}
