mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 01:50:54 +07:00
52a6690d3f
Local port debug messages were using fc_els_resp_type() which showed all CT responses as rejects. Handle CT responses correctly based by inspecting fh_type. I decided not to rename the function to keep the patch smaller. We could call it just fc_resp_type() or fc_elsct_resp_type(). Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
152 lines
3.6 KiB
C
152 lines
3.6 KiB
C
/*
|
|
* Copyright(c) 2008 Intel Corporation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Maintained at www.Open-FCoE.org
|
|
*/
|
|
|
|
/*
|
|
* Provide interface to send ELS/CT FC frames
|
|
*/
|
|
|
|
#include <asm/unaligned.h>
|
|
#include <scsi/fc/fc_gs.h>
|
|
#include <scsi/fc/fc_ns.h>
|
|
#include <scsi/fc/fc_els.h>
|
|
#include <scsi/libfc.h>
|
|
#include <scsi/fc_encode.h>
|
|
|
|
/**
|
|
* fc_elsct_send() - Send an ELS or CT frame
|
|
* @lport: The local port to send the frame on
|
|
* @did: The destination ID for the frame
|
|
* @fp: The frame to be sent
|
|
* @op: The operational code
|
|
* @resp: The callback routine when the response is received
|
|
* @arg: The argument to pass to the response callback routine
|
|
* @timer_msec: The timeout period for the frame (in msecs)
|
|
*/
|
|
struct fc_seq *fc_elsct_send(struct fc_lport *lport, u32 did,
|
|
struct fc_frame *fp, unsigned int op,
|
|
void (*resp)(struct fc_seq *,
|
|
struct fc_frame *,
|
|
void *),
|
|
void *arg, u32 timer_msec)
|
|
{
|
|
enum fc_rctl r_ctl;
|
|
enum fc_fh_type fh_type;
|
|
int rc;
|
|
|
|
/* ELS requests */
|
|
if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS))
|
|
rc = fc_els_fill(lport, did, fp, op, &r_ctl, &fh_type);
|
|
else {
|
|
/* CT requests */
|
|
rc = fc_ct_fill(lport, did, fp, op, &r_ctl, &fh_type);
|
|
did = FC_FID_DIR_SERV;
|
|
}
|
|
|
|
if (rc) {
|
|
fc_frame_free(fp);
|
|
return NULL;
|
|
}
|
|
|
|
fc_fill_fc_hdr(fp, r_ctl, did, fc_host_port_id(lport->host), fh_type,
|
|
FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
|
|
|
|
return lport->tt.exch_seq_send(lport, fp, resp, NULL, arg, timer_msec);
|
|
}
|
|
EXPORT_SYMBOL(fc_elsct_send);
|
|
|
|
/**
|
|
* fc_elsct_init() - Initialize the ELS/CT layer
|
|
* @lport: The local port to initialize the ELS/CT layer for
|
|
*/
|
|
int fc_elsct_init(struct fc_lport *lport)
|
|
{
|
|
if (!lport->tt.elsct_send)
|
|
lport->tt.elsct_send = fc_elsct_send;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(fc_elsct_init);
|
|
|
|
/**
|
|
* fc_els_resp_type() - Return a string describing the ELS response
|
|
* @fp: The frame pointer or possible error code
|
|
*/
|
|
const char *fc_els_resp_type(struct fc_frame *fp)
|
|
{
|
|
const char *msg;
|
|
struct fc_frame_header *fh;
|
|
struct fc_ct_hdr *ct;
|
|
|
|
if (IS_ERR(fp)) {
|
|
switch (-PTR_ERR(fp)) {
|
|
case FC_NO_ERR:
|
|
msg = "response no error";
|
|
break;
|
|
case FC_EX_TIMEOUT:
|
|
msg = "response timeout";
|
|
break;
|
|
case FC_EX_CLOSED:
|
|
msg = "response closed";
|
|
break;
|
|
default:
|
|
msg = "response unknown error";
|
|
break;
|
|
}
|
|
} else {
|
|
fh = fc_frame_header_get(fp);
|
|
switch (fh->fh_type) {
|
|
case FC_TYPE_ELS:
|
|
switch (fc_frame_payload_op(fp)) {
|
|
case ELS_LS_ACC:
|
|
msg = "accept";
|
|
break;
|
|
case ELS_LS_RJT:
|
|
msg = "reject";
|
|
break;
|
|
default:
|
|
msg = "response unknown ELS";
|
|
break;
|
|
}
|
|
break;
|
|
case FC_TYPE_CT:
|
|
ct = fc_frame_payload_get(fp, sizeof(*ct));
|
|
if (ct) {
|
|
switch (ntohs(ct->ct_cmd)) {
|
|
case FC_FS_ACC:
|
|
msg = "CT accept";
|
|
break;
|
|
case FC_FS_RJT:
|
|
msg = "CT reject";
|
|
break;
|
|
default:
|
|
msg = "response unknown CT";
|
|
break;
|
|
}
|
|
} else {
|
|
msg = "short CT response";
|
|
}
|
|
break;
|
|
default:
|
|
msg = "response not ELS or CT";
|
|
break;
|
|
}
|
|
}
|
|
return msg;
|
|
}
|