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[SCSI] bfa: remove all SCSI IO callbacks

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Remove SCSI IO callbacks, and as a result remove bfa_cb_ioim.h.

Signed-off-by: Maggie Zhang <xmzhang@brocade.com>
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Maggie Zhang 2010-12-09 19:11:39 -08:00 committed by James Bottomley
parent e3e7d3eebb
commit f314878ab9
8 changed files with 49 additions and 204 deletions
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169
drivers/scsi/bfa/bfa_cb_ioim.h
View File

@ -1,169 +0,0 @@
/*
* Copyright (c) 2005-2010 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.
*/
#ifndef __BFA_HCB_IOIM_H__
#define __BFA_HCB_IOIM_H__
#include "bfa_os_inc.h"
/*
* task attribute values in FCP-2 FCP_CMND IU
*/
#define SIMPLE_Q 0
#define HEAD_OF_Q 1
#define ORDERED_Q 2
#define ACA_Q 4
#define UNTAGGED 5
static inline lun_t
bfad_int_to_lun(u32 luno)
{
union {
__be16 scsi_lun[4];
lun_t bfa_lun;
} lun;
lun.bfa_lun = 0;
lun.scsi_lun[0] = cpu_to_be16(luno);
return lun.bfa_lun;
}
/*
* Get LUN for the I/O request
*/
#define bfa_cb_ioim_get_lun(__dio) \
bfad_int_to_lun(((struct scsi_cmnd *)__dio)->device->lun)
/*
* Get CDB for the I/O request
*/
static inline u8 *
bfa_cb_ioim_get_cdb(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
return (u8 *) cmnd->cmnd;
}
/*
* Get I/O direction (read/write) for the I/O request
*/
static inline enum fcp_iodir
bfa_cb_ioim_get_iodir(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
enum dma_data_direction dmadir;
dmadir = cmnd->sc_data_direction;
if (dmadir == DMA_TO_DEVICE)
return FCP_IODIR_WRITE;
else if (dmadir == DMA_FROM_DEVICE)
return FCP_IODIR_READ;
else
return FCP_IODIR_NONE;
}
/*
* Get IO size in bytes for the I/O request
*/
static inline u32
bfa_cb_ioim_get_size(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
return scsi_bufflen(cmnd);
}
/*
* Get timeout for the I/O request
*/
static inline u8
bfa_cb_ioim_get_timeout(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
/*
* TBD: need a timeout for scsi passthru
*/
if (cmnd->device->host == NULL)
return 4;
return 0;
}
/*
* Get Command Reference Number for the I/O request. 0 if none.
*/
static inline u8
bfa_cb_ioim_get_crn(struct bfad_ioim_s *dio)
{
return 0;
}
/*
* Get SAM-3 priority for the I/O request. 0 is default.
*/
static inline u8
bfa_cb_ioim_get_priority(struct bfad_ioim_s *dio)
{
return 0;
}
/*
* Get task attributes for the I/O request. Default is FCP_TASK_ATTR_SIMPLE(0).
*/
static inline u8
bfa_cb_ioim_get_taskattr(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
u8 task_attr = UNTAGGED;
if (cmnd->device->tagged_supported) {
switch (cmnd->tag) {
case HEAD_OF_QUEUE_TAG:
task_attr = HEAD_OF_Q;
break;
case ORDERED_QUEUE_TAG:
task_attr = ORDERED_Q;
break;
default:
task_attr = SIMPLE_Q;
break;
}
}
return task_attr;
}
/*
* Get CDB length in bytes for the I/O request. Default is FCP_CMND_CDB_LEN(16).
*/
static inline u8
bfa_cb_ioim_get_cdblen(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
return cmnd->cmd_len;
}
/*
* Assign queue to be used for the I/O request. This value depends on whether
* the driver wants to use the queues via any specific algorithm. Currently,
* this is not supported.
*/
#define bfa_cb_ioim_get_reqq(__dio) BFA_FALSE
#endif /* __BFA_HCB_IOIM_H__ */

4
drivers/scsi/bfa/bfa_defs.h
View File

@ -446,8 +446,8 @@ enum bfa_boot_bootopt {
* Boot lun information.
*/
struct bfa_boot_bootlun_s {
wwn_t pwwn; /* port wwn of target */
lun_t lun; /* 64-bit lun */
wwn_t pwwn; /* port wwn of target */
struct scsi_lun lun; /* 64-bit lun */
};
#pragma pack()

5
drivers/scsi/bfa/bfa_fc.h
View File

@ -21,7 +21,6 @@
#include "bfa_os_inc.h"
typedef u64 wwn_t;
typedef u64 lun_t;
#define WWN_NULL (0)
#define FC_SYMNAME_MAX 256 /* max name server symbolic name size */
@ -1176,8 +1175,8 @@ struct fc_srr_s {
#define FCP_CMND_LUN_LEN 8
struct fcp_cmnd_s {
lun_t lun; /* 64-bit LU number */
u8 crn; /* command reference number */
struct scsi_lun lun; /* 64-bit LU number */
u8 crn; /* command reference number */
#ifdef __BIGENDIAN
u8 resvd:1,
priority:4, /* FCP-3: SAM-3 priority */

53
drivers/scsi/bfa/bfa_fcpim.c
View File

@ -16,7 +16,7 @@
*/
#include "bfa_modules.h"
#include "bfa_cb_ioim.h"
#include "bfa_os_inc.h"
BFA_TRC_FILE(HAL, FCPIM);
BFA_MODULE(fcpim);
@ -263,7 +263,7 @@ static void bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim,
static void __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete);
static void __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete);
static bfa_boolean_t bfa_tskim_match_scope(struct bfa_tskim_s *tskim,
lun_t lun);
struct scsi_lun lun);
static void bfa_tskim_gather_ios(struct bfa_tskim_s *tskim);
static void bfa_tskim_cleanp_comp(void *tskim_cbarg);
static void bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim);
@ -2315,7 +2315,7 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
{
struct bfa_itnim_s *itnim = ioim->itnim;
struct bfi_ioim_req_s *m;
static struct fcp_cmnd_s cmnd_z0 = { 0 };
static struct fcp_cmnd_s cmnd_z0 = {{{0}}};
struct bfi_sge_s *sge, *sgpge;
u32 pgdlen = 0;
u32 fcp_dl;
@ -2324,6 +2324,7 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
struct bfa_sgpg_s *sgpg;
struct scsi_cmnd *cmnd = (struct scsi_cmnd *) ioim->dio;
u32 i, sge_id, pgcumsz;
enum dma_data_direction dmadir;
/*
* check for room in queue to send request now
@ -2341,7 +2342,7 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
*/
m->io_tag = cpu_to_be16(ioim->iotag);
m->rport_hdl = ioim->itnim->rport->fw_handle;
m->io_timeout = bfa_cb_ioim_get_timeout(ioim->dio);
m->io_timeout = 0;
sge = &m->sges[0];
sgpg = ioim->sgpg;
@ -2412,10 +2413,17 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
* set up I/O command parameters
*/
m->cmnd = cmnd_z0;
m->cmnd.lun = bfa_cb_ioim_get_lun(ioim->dio);
m->cmnd.iodir = bfa_cb_ioim_get_iodir(ioim->dio);
m->cmnd.cdb = *(scsi_cdb_t *)bfa_cb_ioim_get_cdb(ioim->dio);
fcp_dl = bfa_cb_ioim_get_size(ioim->dio);
int_to_scsilun(cmnd->device->lun, &m->cmnd.lun);
dmadir = cmnd->sc_data_direction;
if (dmadir == DMA_TO_DEVICE)
m->cmnd.iodir = FCP_IODIR_WRITE;
else if (dmadir == DMA_FROM_DEVICE)
m->cmnd.iodir = FCP_IODIR_READ;
else
m->cmnd.iodir = FCP_IODIR_NONE;
m->cmnd.cdb = *(scsi_cdb_t *) cmnd->cmnd;
fcp_dl = scsi_bufflen(cmnd);
m->cmnd.fcp_dl = cpu_to_be32(fcp_dl);
/*
@ -2439,7 +2447,7 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_lpuid(ioim->bfa));
}
if (itnim->seq_rec ||
(bfa_cb_ioim_get_size(ioim->dio) & (sizeof(u32) - 1)))
(scsi_bufflen(cmnd) & (sizeof(u32) - 1)))
bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_lpuid(ioim->bfa));
/*
@ -2769,7 +2777,8 @@ bfa_ioim_profile_start(struct bfa_ioim_s *ioim)
void
bfa_ioim_profile_comp(struct bfa_ioim_s *ioim)
{
u32 fcp_dl = bfa_cb_ioim_get_size(ioim->dio);
struct scsi_cmnd *cmnd = (struct scsi_cmnd *) ioim->dio;
u32 fcp_dl = scsi_bufflen(cmnd);
u32 index = bfa_ioim_get_index(fcp_dl);
u64 end_time = jiffies;
struct bfa_itnim_latency_s *io_lat =
@ -2895,8 +2904,7 @@ bfa_ioim_start(struct bfa_ioim_s *ioim)
* Obtain the queue over which this request has to be issued
*/
ioim->reqq = bfa_fcpim_ioredirect_enabled(ioim->bfa) ?
bfa_cb_ioim_get_reqq(ioim->dio) :
bfa_itnim_get_reqq(ioim);
BFA_FALSE : bfa_itnim_get_reqq(ioim);
bfa_sm_send_event(ioim, BFA_IOIM_SM_START);
}
@ -3186,7 +3194,7 @@ __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete)
}
static bfa_boolean_t
bfa_tskim_match_scope(struct bfa_tskim_s *tskim, lun_t lun)
bfa_tskim_match_scope(struct bfa_tskim_s *tskim, struct scsi_lun lun)
{
switch (tskim->tm_cmnd) {
case FCP_TM_TARGET_RESET:
@ -3196,7 +3204,7 @@ bfa_tskim_match_scope(struct bfa_tskim_s *tskim, lun_t lun)
case FCP_TM_CLEAR_TASK_SET:
case FCP_TM_LUN_RESET:
case FCP_TM_CLEAR_ACA:
return (tskim->lun == lun);
return (!memcmp(&tskim->lun, &lun, sizeof(lun)));
default:
bfa_assert(0);
@ -3213,7 +3221,9 @@ bfa_tskim_gather_ios(struct bfa_tskim_s *tskim)
{
struct bfa_itnim_s *itnim = tskim->itnim;
struct bfa_ioim_s *ioim;
struct list_head *qe, *qen;
struct list_head *qe, *qen;
struct scsi_cmnd *cmnd;
struct scsi_lun scsilun;
INIT_LIST_HEAD(&tskim->io_q);
@ -3222,8 +3232,9 @@ bfa_tskim_gather_ios(struct bfa_tskim_s *tskim)
*/
list_for_each_safe(qe, qen, &itnim->io_q) {
ioim = (struct bfa_ioim_s *) qe;
if (bfa_tskim_match_scope
(tskim, bfa_cb_ioim_get_lun(ioim->dio))) {
cmnd = (struct scsi_cmnd *) ioim->dio;
int_to_scsilun(cmnd->device->lun, &scsilun);
if (bfa_tskim_match_scope(tskim, scsilun)) {
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &tskim->io_q);
}
@ -3234,8 +3245,9 @@ bfa_tskim_gather_ios(struct bfa_tskim_s *tskim)
*/
list_for_each_safe(qe, qen, &itnim->pending_q) {
ioim = (struct bfa_ioim_s *) qe;
if (bfa_tskim_match_scope
(tskim, bfa_cb_ioim_get_lun(ioim->dio))) {
cmnd = (struct scsi_cmnd *) ioim->dio;
int_to_scsilun(cmnd->device->lun, &scsilun);
if (bfa_tskim_match_scope(tskim, scsilun)) {
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_ioim_tov(ioim);
@ -3494,7 +3506,8 @@ bfa_tskim_free(struct bfa_tskim_s *tskim)
* @return None.
*/
void
bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, lun_t lun,
bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim,
struct scsi_lun lun,
enum fcp_tm_cmnd tm_cmnd, u8 tsecs)
{
tskim->itnim = itnim;

8
drivers/scsi/bfa/bfa_fcpim.h
View File

@ -146,9 +146,9 @@ struct bfa_tskim_s {
struct bfa_s *bfa; /* BFA module */
struct bfa_fcpim_mod_s *fcpim; /* parent fcpim module */
struct bfa_itnim_s *itnim; /* i-t-n nexus for this IO */
struct bfad_tskim_s *dtsk; /* driver task mgmt cmnd */
bfa_boolean_t notify; /* notify itnim on TM comp */
lun_t lun; /* lun if applicable */
struct bfad_tskim_s *dtsk; /* driver task mgmt cmnd */
bfa_boolean_t notify; /* notify itnim on TM comp */
struct scsi_lun lun; /* lun if applicable */
enum fcp_tm_cmnd tm_cmnd; /* task management command */
u16 tsk_tag; /* FWI IO tag */
u8 tsecs; /* timeout in seconds */
@ -389,7 +389,7 @@ struct bfa_tskim_s *bfa_tskim_alloc(struct bfa_s *bfa,
struct bfad_tskim_s *dtsk);
void bfa_tskim_free(struct bfa_tskim_s *tskim);
void bfa_tskim_start(struct bfa_tskim_s *tskim,
struct bfa_itnim_s *itnim, lun_t lun,
struct bfa_itnim_s *itnim, struct scsi_lun lun,
enum fcp_tm_cmnd tm, u8 t_secs);
void bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk,
enum bfi_tskim_status tsk_status);

10
drivers/scsi/bfa/bfad_im.c
View File

@ -21,7 +21,6 @@
#include "bfad_drv.h"
#include "bfad_im.h"
#include "bfa_cb_ioim.h"
#include "bfa_fcs.h"
BFA_TRC_FILE(LDRV, IM);
@ -258,6 +257,7 @@ bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd,
struct bfa_tskim_s *tskim;
struct bfa_itnim_s *bfa_itnim;
bfa_status_t rc = BFA_STATUS_OK;
struct scsi_lun scsilun;
tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd);
if (!tskim) {
@ -274,7 +274,8 @@ bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd,
cmnd->host_scribble = NULL;
cmnd->SCp.Status = 0;
bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
bfa_tskim_start(tskim, bfa_itnim, (lun_t)0,
memset(&scsilun, 0, sizeof(scsilun));
bfa_tskim_start(tskim, bfa_itnim, scsilun,
FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO);
out:
return rc;
@ -301,6 +302,7 @@ bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd)
int rc = SUCCESS;
unsigned long flags;
enum bfi_tskim_status task_status;
struct scsi_lun scsilun;
spin_lock_irqsave(&bfad->bfad_lock, flags);
itnim = itnim_data->itnim;
@ -327,8 +329,8 @@ bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd)
cmnd->SCp.ptr = (char *)&wq;
cmnd->SCp.Status = 0;
bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
bfa_tskim_start(tskim, bfa_itnim,
bfad_int_to_lun(cmnd->device->lun),
int_to_scsilun(cmnd->device->lun, &scsilun);
bfa_tskim_start(tskim, bfa_itnim, scsilun,
FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO);
spin_unlock_irqrestore(&bfad->bfad_lock, flags);

2
drivers/scsi/bfa/bfi.h
View File

@ -399,7 +399,7 @@ union bfi_ioc_i2h_msg_u {
*/
struct bfi_pbc_blun_s {
wwn_t tgt_pwwn;
lun_t tgt_lun;
struct scsi_lun tgt_lun;
};
/*

2
drivers/scsi/bfa/bfi_ms.h
View File

@ -725,7 +725,7 @@ struct bfi_tskim_req_s {
struct bfi_mhdr_s mh; /* Common msg header */
__be16 tsk_tag; /* task management tag */
u16 itn_fhdl; /* itn firmware handle */
lun_t lun; /* LU number */
struct scsi_lun lun; /* LU number */
u8 tm_flags; /* see enum fcp_tm_cmnd */
u8 t_secs; /* Timeout value in seconds */
u8 rsvd[2];