mirror of
https://github.com/torvalds/linux.git
synced 2024-11-28 23:21:31 +00:00
4f8d1bd273
We need to store PROTO_ERR_IMPL_LOGO (26) things here, but the first element isn't used so the array should have 27 elements. This matches fwevt_to_rnevt[] which has 27 elements. The patch solves a Smatch static checker warning on my system: drivers/scsi/csiostor/csio_rnode.c:880 csio_rnode_fwevt_handler() error: buffer overflow '(rn)->stats.n_evt_fw' 26 <= 26 Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Naresh Kumar Inna <naresh@chelsio.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
142 lines
4.7 KiB
C
142 lines
4.7 KiB
C
/*
|
|
* This file is part of the Chelsio FCoE driver for Linux.
|
|
*
|
|
* Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __CSIO_RNODE_H__
|
|
#define __CSIO_RNODE_H__
|
|
|
|
#include "csio_defs.h"
|
|
|
|
/* State machine evets */
|
|
enum csio_rn_ev {
|
|
CSIO_RNFE_NONE = (uint32_t)0, /* None */
|
|
CSIO_RNFE_LOGGED_IN, /* [N/F]Port login
|
|
* complete.
|
|
*/
|
|
CSIO_RNFE_PRLI_DONE, /* PRLI completed */
|
|
CSIO_RNFE_PLOGI_RECV, /* Received PLOGI */
|
|
CSIO_RNFE_PRLI_RECV, /* Received PLOGI */
|
|
CSIO_RNFE_LOGO_RECV, /* Received LOGO */
|
|
CSIO_RNFE_PRLO_RECV, /* Received PRLO */
|
|
CSIO_RNFE_DOWN, /* Rnode is down */
|
|
CSIO_RNFE_CLOSE, /* Close rnode */
|
|
CSIO_RNFE_NAME_MISSING, /* Rnode name missing
|
|
* in name server.
|
|
*/
|
|
CSIO_RNFE_MAX_EVENT,
|
|
};
|
|
|
|
/* rnode stats */
|
|
struct csio_rnode_stats {
|
|
uint32_t n_err; /* error */
|
|
uint32_t n_err_inval; /* invalid parameter */
|
|
uint32_t n_err_nomem; /* error nomem */
|
|
uint32_t n_evt_unexp; /* unexpected event */
|
|
uint32_t n_evt_drop; /* unexpected event */
|
|
uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */
|
|
enum csio_rn_ev n_evt_sm[CSIO_RNFE_MAX_EVENT]; /* State m/c events */
|
|
uint32_t n_lun_rst; /* Number of resets of
|
|
* of LUNs under this
|
|
* target
|
|
*/
|
|
uint32_t n_lun_rst_fail; /* Number of LUN reset
|
|
* failures.
|
|
*/
|
|
uint32_t n_tgt_rst; /* Number of target resets */
|
|
uint32_t n_tgt_rst_fail; /* Number of target reset
|
|
* failures.
|
|
*/
|
|
};
|
|
|
|
/* Defines for rnode role */
|
|
#define CSIO_RNFR_INITIATOR 0x1
|
|
#define CSIO_RNFR_TARGET 0x2
|
|
#define CSIO_RNFR_FABRIC 0x4
|
|
#define CSIO_RNFR_NS 0x8
|
|
#define CSIO_RNFR_NPORT 0x10
|
|
|
|
struct csio_rnode {
|
|
struct csio_sm sm; /* State machine -
|
|
* should be the
|
|
* 1st member
|
|
*/
|
|
struct csio_lnode *lnp; /* Pointer to owning
|
|
* Lnode */
|
|
uint32_t flowid; /* Firmware ID */
|
|
struct list_head host_cmpl_q; /* SCSI IOs
|
|
* pending to completed
|
|
* to Mid-layer.
|
|
*/
|
|
/* FC identifiers for remote node */
|
|
uint32_t nport_id;
|
|
uint16_t fcp_flags; /* FCP Flags */
|
|
uint8_t cur_evt; /* Current event */
|
|
uint8_t prev_evt; /* Previous event */
|
|
uint32_t role; /* Fabric/Target/
|
|
* Initiator/NS
|
|
*/
|
|
struct fcoe_rdev_entry *rdev_entry; /* Rdev entry */
|
|
struct csio_service_parms rn_sparm;
|
|
|
|
/* FC transport attributes */
|
|
struct fc_rport *rport; /* FC transport rport */
|
|
uint32_t supp_classes; /* Supported FC classes */
|
|
uint32_t maxframe_size; /* Max Frame size */
|
|
uint32_t scsi_id; /* Transport given SCSI id */
|
|
|
|
struct csio_rnode_stats stats; /* Common rnode stats */
|
|
};
|
|
|
|
#define csio_rn_flowid(rn) ((rn)->flowid)
|
|
#define csio_rn_wwpn(rn) ((rn)->rn_sparm.wwpn)
|
|
#define csio_rn_wwnn(rn) ((rn)->rn_sparm.wwnn)
|
|
#define csio_rnode_to_lnode(rn) ((rn)->lnp)
|
|
|
|
int csio_is_rnode_ready(struct csio_rnode *rn);
|
|
void csio_rnode_state_to_str(struct csio_rnode *rn, int8_t *str);
|
|
|
|
struct csio_rnode *csio_rnode_lookup_portid(struct csio_lnode *, uint32_t);
|
|
struct csio_rnode *csio_confirm_rnode(struct csio_lnode *,
|
|
uint32_t, struct fcoe_rdev_entry *);
|
|
|
|
void csio_rnode_fwevt_handler(struct csio_rnode *rn, uint8_t fwevt);
|
|
|
|
void csio_put_rnode(struct csio_lnode *ln, struct csio_rnode *rn);
|
|
|
|
void csio_reg_rnode(struct csio_rnode *);
|
|
void csio_unreg_rnode(struct csio_rnode *);
|
|
|
|
void csio_rnode_devloss_handler(struct csio_rnode *);
|
|
|
|
#endif /* ifndef __CSIO_RNODE_H__ */
|