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linux/drivers/scsi/libata.h

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
/*
[libata] license change, other bits - changes license of all code from OSL+GPL to plain ole GPL - except for NVIDIA, who hasn't yet responded about sata_nv - copyright holders were already contacted privately - adds info in each driver about where hardware/protocol docs may be obtained - where I have made major contributions, updated copyright dates
2005-08-29 04:18:39 +04:00
* libata.h - helper library for ATA
*
* Copyright 2003-2004 Red Hat, Inc. All rights reserved.
* Copyright 2003-2004 Jeff Garzik
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* libata documentation is available via 'make {ps|pdf}docs',
* as Documentation/DocBook/libata.*
*
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
*/
#ifndef __LIBATA_H__
#define __LIBATA_H__
#define DRV_NAME "libata"
[libata] Bump versions Update major version for libata, and several drivers. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-27 04:41:33 +04:00
#define DRV_VERSION "2.00" /* must be exactly four chars */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
struct ata_scsi_args {
[BLOCK] add FUA support to libata Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-06 11:56:18 +03:00
struct ata_device *dev;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
u16 *id;
struct scsi_cmnd *cmd;
void (*done)(struct scsi_cmnd *);
};
/* libata-core.c */
[PATCH] libata-hp-prep: add ata_aux_wq It's best to run ATA hotplug from EH but attaching SCSI devices needs working EH. ata_aux_wq is used to give SCSI hotplug operations a separate context. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 13:27:42 +04:00
extern struct workqueue_struct *ata_aux_wq;
[libata] allow ATAPI to be enabled with new atapi_enabled module option ATAPI is getting close to being ready. To increase exposure, we enable the code in the upstream kernel, but default it to off (present behavior). Users must pass atapi_enabled=1 as a module option (if module) or on the kernel command line (if built in) to turn on discovery of their ATAPI devices.
2005-08-30 11:37:42 +04:00
extern int atapi_enabled;
[PATCH] libata: convert ATAPI_ENABLE_DMADIR to module parameter Convert the ATAPI_ENABLE_DMADIR compile time option needed by some SATA-PATA bridge to runtime module parameter. Signed-off-by: Albert Lee <albertcc@tw.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-04 06:57:18 +04:00
extern int atapi_dmadir;
[libata] Disable FUA Until problems are sorted.
2006-02-28 06:31:19 +03:00
extern int libata_fua;
[PATCH] libata: use dev->ap Use dev->ap where possible and eliminate superflous @ap from functions and structures. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:57:53 +04:00
extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
[BLOCK] add FUA support to libata Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-06 11:56:18 +03:00
extern int ata_rwcmd_protocol(struct ata_queued_cmd *qc);
[PATCH] libata: use dev->ap Use dev->ap where possible and eliminate superflous @ap from functions and structures. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:57:53 +04:00
extern void ata_dev_disable(struct ata_device *dev);
[PATCH] libata: implement port_task Implement port_task. LLDD's can schedule a function to be executed with context after specified delay. libata core takes care of synchronization against EH. This is generalized form of pio_task and packet_task which are tied to PIO hsm implementation. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-05 09:29:09 +03:00
extern void ata_port_flush_task(struct ata_port *ap);
[PATCH] libata: use dev->ap Use dev->ap where possible and eliminate superflous @ap from functions and structures. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:57:53 +04:00
extern unsigned ata_exec_internal(struct ata_device *dev,
[PATCH] libata: make some libata-core routines extern Make libata-core routines which will be used by EH implementation extern. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-02 13:51:53 +04:00
struct ata_taskfile *tf, const u8 *cdb,
int dma_dir, void *buf, unsigned int buflen);
[PATCH] libata: make two functions global Make ata_do_simple_cmd() and ata_flush_cache() global. These will be used from libata-eh.c. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-24 15:30:19 +04:00
extern unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd);
[PATCH] libata-hp-prep: make probing related functions global Hotplug will be implemented in libata-eh.c. Make ata_dev_read_id() and ata_dev_configure() global. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 13:27:44 +04:00
extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
int post_reset, u16 *id);
extern int ata_dev_configure(struct ata_device *dev, int print_info);
[PATCH] libata: rename ata_down_sata_spd_limit() and friends Rename ata_down_sata_spd_limit() and friends to sata_down_spd_limit() and likewise for simplicity & consistency. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:57:23 +04:00
extern int sata_down_spd_limit(struct ata_port *ap);
extern int sata_set_spd_needed(struct ata_port *ap);
[PATCH] libata: use dev->ap Use dev->ap where possible and eliminate superflous @ap from functions and structures. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:57:53 +04:00
extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0);
[PATCH] libata: make some libata-core routines extern Make libata-core routines which will be used by EH implementation extern. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-02 13:51:53 +04:00
extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
extern void ata_qc_free(struct ata_queued_cmd *qc);
[PATCH] libata: make ata_qc_issue complete failed qcs There is no reason for the issuer to diddle with a failed qc as the issuer has complete control over when a qc gets freed (usually in ->complete_fn). Make ata_qc_issue() responsible for completing qcs which failed to issue. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-31 15:41:11 +04:00
extern void ata_qc_issue(struct ata_queued_cmd *qc);
[PATCH] libata-eh-fw: implement new EH scheduling via error completion There are several ways a qc can get schedule for EH in new EH. This patch implements one of them - completing a qc with ATA_QCFLAG_FAILED set or with non-zero qc->err_mask. ALL such qc's are examined by EH. New EH schedules a qc for EH from completion iff ->error_handler is implemented, qc is marked as failed or qc->err_mask is non-zero and the command is not an internal command (internal cmd is handled via ->post_internal_cmd). The EH scheduling itself is performed by asking SCSI midlayer to schedule EH for the specified scmd. For drivers implementing old-EH, nothing changes. As this change makes ata_qc_complete() rather large, it's not inlined anymore and __ata_qc_complete() is exported to other parts of libata for later use. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:58:05 +04:00
extern void __ata_qc_complete(struct ata_queued_cmd *qc);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
extern void ata_dev_select(struct ata_port *ap, unsigned int device,
unsigned int wait, unsigned int can_sleep);
extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
[PATCH] libata: make two functions global Make ata_do_simple_cmd() and ata_flush_cache() global. These will be used from libata-eh.c. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-24 15:30:19 +04:00
extern int ata_flush_cache(struct ata_device *dev);
[PATCH] libata-hp-prep: implement ata_dev_init() Move initialization of struct ata_device into ata_dev_init() in preparation for hotplug. This patch calls ata_dev_init() from ata_host_init() and thus makes no functional difference. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 13:27:30 +04:00
extern void ata_dev_init(struct ata_device *dev);
[libata] ATA passthru (arbitrary ATA command execution) Authors: Brett Russ <russb@emc.com> John W. Linville <linville@tuxdriver.com> Andy Warner <andyw@pobox.com>
2005-05-12 23:45:22 +04:00
extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
[PATCH] libata: Add ata_port_init Separate out the ata_port initialization from ata_host_init so that it can be used in future SAS patches. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-07 23:27:17 +04:00
extern void ata_port_init(struct ata_port *ap, struct ata_host_set *host_set,
const struct ata_probe_ent *ent, unsigned int port_no);
[PATCH] libata: Move ata_probe_ent_alloc to libata_core Move ata_probe_ent_alloc to libata-core. It will also be used by future SAS/SATA integration patches. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-07 23:27:24 +04:00
extern struct ata_probe_ent *ata_probe_ent_alloc(struct device *dev,
const struct ata_port_info *port);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
/* libata-scsi.c */
[SCSI] libata: implement minimal transport template for ->eh_timed_out SCSI midlayer has moved hostt->eh_timed_out to transport template. As libata doesn't need full-blown transport support yet, implement minimal transport for libata. No transport class or whatsoever, just empty transport template with ->eh_timed_out hook. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-03-18 12:40:14 +03:00
extern struct scsi_transport_template ata_scsi_transport_template;
[libata] improve device scan Replace SCSI's legacy "bang at the door" method of probing with one directly controlled by the underlying ATA transport layer. We now only call scsi_scan_target() for devices we find, rather than probing every possible channel/id within a certain range.
2005-10-03 23:55:19 +04:00
extern void ata_scsi_scan_host(struct ata_port *ap);
[PATCH] libata-hp: implement ata_eh_detach_dev() Implement ata_eh_detach_dev(). This function is responsible for detaching an ATA device and offlining the associated SCSI device atomically so that the detached device is not accessed after ATA detach is complete. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 13:28:01 +04:00
extern int ata_scsi_offline_dev(struct ata_device *dev);
[PATCH] libata-hp: implement SCSI part of hotplug Implement SCSI part of hotplug. This must be done in a separate context as SCSI makes use of EH during probing. SCSI scan fails silently if EH is in progress. In such cases, libata pauses briefly and retries until every device is attached. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 13:28:05 +04:00
extern void ata_scsi_hotplug(void *data);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
extern unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_sync_cache(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen);
extern void ata_scsi_badcmd(struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *),
u8 asc, u8 ascq);
[libata scsi] add ata_scsi_set_sense helper - add extern ata_scsi_set_sense() to build SCSI fixed sense data and corresponding SCSI status Signed-off-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-09 16:55:41 +04:00
extern void ata_scsi_set_sense(struct scsi_cmnd *cmd,
u8 sk, u8 asc, u8 ascq);
libata: trim trailing whitespace. Also, fixup a tabs-to-spaces block of code in ata_piix.
2005-07-31 21:13:24 +04:00
extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
unsigned int (*actor) (struct ata_scsi_args *args,
u8 *rbuf, unsigned int buflen));
[PATCH] libata-eh-fw: implement ata_port_schedule_eh() and ata_port_abort() ata_port_schedule_eh() directly schedules EH for @ap without associated qc. Once EH scheduled, no further qc is allowed and EH kicks in as soon as all currently active qc's are drained. ata_port_abort() schedules all currently active commands for EH by qc_completing them with ATA_QCFLAG_FAILED set. If ata_port_abort() doesn't find any qc to abort, it directly schedule EH using ata_port_schedule_eh(). These two functions provide ways to invoke EH for conditions which aren't directly related to any specfic qc. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:58:07 +04:00
extern void ata_schedule_scsi_eh(struct Scsi_Host *shost);
[PATCH] Snoop SET FEATURES - WRITE CACHE ENABLE/DISABLE command(v5) This patch makes libata snoop 'SET FEATURES - WRITE CACHE ENABLE/DISABLE' command, executing requisite revalidation processes to update cached data. Signed-off-by: Forrest Zhao <forrest.zhao@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-12 08:01:34 +04:00
extern void ata_scsi_dev_rescan(void *data);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
[PATCH] libata: separate out libata-eh.c A lot of EH codes are about to be added to libata. Separate out libata-eh.c. ata_scsi_timed_out(), ata_scsi_error(), ata_qc_timeout(), ata_eng_timeout(), ata_eh_qc_complete() and ata_eh_qc_retry() are moved. No code is changed by this patch. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-02 13:51:53 +04:00
/* libata-eh.c */
extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
libata: Fix EH merge difference between this branch and upstream.
2006-04-11 21:04:39 +04:00
extern void ata_scsi_error(struct Scsi_Host *host);
[PATCH] libata: implement ata_eh_wait() Implement ata_eh_wait(). On return from this function, it's guaranteed that the EH which was pending or in progress when the function was called is complete - including the tailing part of SCSI EH. This will be used by hotplug and others to synchronize with EH. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-31 13:27:27 +04:00
extern void ata_port_wait_eh(struct ata_port *ap);
[PATCH] libata-eh-fw: implement new EH scheduling via error completion There are several ways a qc can get schedule for EH in new EH. This patch implements one of them - completing a qc with ATA_QCFLAG_FAILED set or with non-zero qc->err_mask. ALL such qc's are examined by EH. New EH schedules a qc for EH from completion iff ->error_handler is implemented, qc is marked as failed or qc->err_mask is non-zero and the command is not an internal command (internal cmd is handled via ->post_internal_cmd). The EH scheduling itself is performed by asking SCSI midlayer to schedule EH for the specified scmd. For drivers implementing old-EH, nothing changes. As this change makes ata_qc_complete() rather large, it's not inlined anymore and __ata_qc_complete() is exported to other parts of libata for later use. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-05-15 15:58:05 +04:00
extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
[PATCH] libata: separate out libata-eh.c A lot of EH codes are about to be added to libata. Separate out libata-eh.c. ata_scsi_timed_out(), ata_scsi_error(), ata_qc_timeout(), ata_eng_timeout(), ata_eh_qc_complete() and ata_eh_qc_retry() are moved. No code is changed by this patch. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-02 13:51:53 +04:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 02:20:36 +04:00
#endif /* __LIBATA_H__ */
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