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path: root/drivers/scsi/aha152x.c
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Diffstat (limited to 'drivers/scsi/aha152x.c')
-rw-r--r--drivers/scsi/aha152x.c494
1 files changed, 230 insertions, 264 deletions
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index cb2ee25f213..e86eb6a921f 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -1,6 +1,6 @@
/* aha152x.c -- Adaptec AHA-152x driver
- * Author: Jürgen E. Fischer, fischer@norbit.de
- * Copyright 1993-2004 Jürgen E. Fischer
+ * Author: Jürgen E. Fischer, fischer@norbit.de
+ * Copyright 1993-2004 Jürgen E. Fischer
*
* 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
@@ -236,11 +236,10 @@
**************************************************************************/
#include <linux/module.h>
-#include <linux/sched.h>
#include <asm/irq.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <linux/blkdev.h>
-#include <asm/system.h>
+#include <linux/completion.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/wait.h>
@@ -253,15 +252,19 @@
#include <linux/isapnp.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
-#include <asm/semaphore.h>
+#include <linux/list.h>
+#include <linux/slab.h>
#include <scsi/scsicam.h>
#include "scsi.h"
#include <scsi/scsi_dbg.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_spi.h>
+#include <scsi/scsi_eh.h>
#include "aha152x.h"
+static LIST_HEAD(aha152x_host_list);
+
/* DEFINES */
@@ -285,20 +288,20 @@
#define DO_LOCK(flags) \
do { \
if(spin_is_locked(&QLOCK)) { \
- DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
+ DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
} \
- DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
+ DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
spin_lock_irqsave(&QLOCK,flags); \
- DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
- QLOCKER=__FUNCTION__; \
+ DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
+ QLOCKER=__func__; \
QLOCKERL=__LINE__; \
} while(0)
#define DO_UNLOCK(flags) \
do { \
- DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__, QLOCKER, QLOCKERL); \
+ DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
spin_unlock_irqrestore(&QLOCK,flags); \
- DPRINTK(debug_locks, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __FUNCTION__, __LINE__); \
+ DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
QLOCKER="(not locked)"; \
QLOCKERL=0; \
} while(0)
@@ -320,6 +323,12 @@
(cmd) ? ((cmd)->device->id & 0x0f) : -1, \
(cmd) ? ((cmd)->device->lun & 0x07) : -1
+static inline void
+CMD_INC_RESID(struct scsi_cmnd *cmd, int inc)
+{
+ scsi_set_resid(cmd, scsi_get_resid(cmd) + inc);
+}
+
#define DELAY_DEFAULT 1000
#if defined(PCMCIA)
@@ -328,7 +337,7 @@
#else
#define IRQ_MIN 9
#if defined(__PPC)
-#define IRQ_MAX (NR_IRQS-1)
+#define IRQ_MAX (nr_irqs-1)
#else
#define IRQ_MAX 12
#endif
@@ -349,7 +358,7 @@ enum {
check_condition = 0x0800, /* requesting sense after CHECK CONDITION */
};
-MODULE_AUTHOR("Jürgen Fischer");
+MODULE_AUTHOR("Jürgen Fischer");
MODULE_DESCRIPTION(AHA152X_REVID);
MODULE_LICENSE("GPL");
@@ -411,11 +420,20 @@ MODULE_PARM_DESC(aha152x1, "parameters for second controller");
#endif /* MODULE */
#ifdef __ISAPNP__
-static struct isapnp_device_id id_table[] __devinitdata = {
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1505), 0 },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('A','D','P'), ISAPNP_FUNCTION(0x1530), 0 },
+static struct isapnp_device_id id_table[] = {
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1502), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1505), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1510), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1515), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1520), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2015), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1522), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x2215), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1530), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3015), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x1532), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x3215), 0 },
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('A', 'D', 'P'), ISAPNP_FUNCTION(0x6360), 0 },
{ ISAPNP_DEVICE_SINGLE_END, }
};
MODULE_DEVICE_TABLE(isapnp, id_table);
@@ -423,8 +441,6 @@ MODULE_DEVICE_TABLE(isapnp, id_table);
#endif /* !PCMCIA */
-static int registered_count=0;
-static struct Scsi_Host *aha152x_host[2];
static struct scsi_host_template aha152x_driver_template;
/*
@@ -541,6 +557,7 @@ struct aha152x_hostdata {
#ifdef __ISAPNP__
struct pnp_dev *pnpdev;
#endif
+ struct list_head host_list;
};
@@ -550,10 +567,10 @@ struct aha152x_hostdata {
*/
struct aha152x_scdata {
Scsi_Cmnd *next; /* next sc in queue */
- struct semaphore *sem; /* semaphore to block on */
+ struct completion *done;/* semaphore to block on */
+ struct scsi_eh_save ses;
};
-
/* access macros for hostdata */
#define HOSTDATA(shpnt) ((struct aha152x_hostdata *) &shpnt->hostdata)
@@ -602,9 +619,9 @@ struct aha152x_scdata {
#define SCDATA(SCpnt) ((struct aha152x_scdata *) (SCpnt)->host_scribble)
#define SCNEXT(SCpnt) SCDATA(SCpnt)->next
-#define SCSEM(SCpnt) SCDATA(SCpnt)->sem
+#define SCSEM(SCpnt) SCDATA(SCpnt)->done
-#define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset))
+#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
/* state handling */
static void seldi_run(struct Scsi_Host *shpnt);
@@ -666,7 +683,7 @@ static struct {
};
/* setup & interrupt */
-static irqreturn_t intr(int irq, void *dev_id, struct pt_regs *);
+static irqreturn_t intr(int irq, void *dev_id);
static void reset_ports(struct Scsi_Host *shpnt);
static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
static void done(struct Scsi_Host *shpnt, int error);
@@ -750,25 +767,9 @@ static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
return ptr;
}
-static inline struct Scsi_Host *lookup_irq(int irqno)
+static irqreturn_t swintr(int irqno, void *dev_id)
{
- int i;
-
- for(i=0; i<ARRAY_SIZE(aha152x_host); i++)
- if(aha152x_host[i] && aha152x_host[i]->irq==irqno)
- return aha152x_host[i];
-
- return NULL;
-}
-
-static irqreturn_t swintr(int irqno, void *dev_id, struct pt_regs *regs)
-{
- struct Scsi_Host *shpnt = lookup_irq(irqno);
-
- if (!shpnt) {
- printk(KERN_ERR "aha152x: catched software interrupt %d for unknown controller.\n", irqno);
- return IRQ_NONE;
- }
+ struct Scsi_Host *shpnt = dev_id;
HOSTDATA(shpnt)->swint++;
@@ -786,10 +787,11 @@ struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
return NULL;
}
- /* need to have host registered before triggering any interrupt */
- aha152x_host[registered_count] = shpnt;
-
memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
+ INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list);
+
+ /* need to have host registered before triggering any interrupt */
+ list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list);
shpnt->io_port = setup->io_port;
shpnt->n_io_port = IO_RANGE;
@@ -855,7 +857,7 @@ struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
SETPORT(SIMODE0, 0);
SETPORT(SIMODE1, 0);
- if( request_irq(shpnt->irq, swintr, SA_INTERRUPT|SA_SHIRQ, "aha152x", shpnt) ) {
+ if (request_irq(shpnt->irq, swintr, IRQF_SHARED, "aha152x", shpnt)) {
printk(KERN_ERR "aha152x%d: irq %d busy.\n", shpnt->host_no, shpnt->irq);
goto out_host_put;
}
@@ -889,7 +891,7 @@ struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
SETPORT(SSTAT0, 0x7f);
SETPORT(SSTAT1, 0xef);
- if ( request_irq(shpnt->irq, intr, SA_INTERRUPT|SA_SHIRQ, "aha152x", shpnt) ) {
+ if (request_irq(shpnt->irq, intr, IRQF_SHARED, "aha152x", shpnt)) {
printk(KERN_ERR "aha152x%d: failed to reassign irq %d.\n", shpnt->host_no, shpnt->irq);
goto out_host_put;
}
@@ -902,12 +904,10 @@ struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
scsi_scan_host(shpnt);
- registered_count++;
-
return shpnt;
out_host_put:
- aha152x_host[registered_count]=NULL;
+ list_del(&HOSTDATA(shpnt)->host_list);
scsi_host_put(shpnt);
return NULL;
@@ -915,9 +915,10 @@ out_host_put:
void aha152x_release(struct Scsi_Host *shpnt)
{
- if(!shpnt)
+ if (!shpnt)
return;
+ scsi_remove_host(shpnt);
if (shpnt->irq)
free_irq(shpnt->irq, shpnt);
@@ -931,7 +932,7 @@ void aha152x_release(struct Scsi_Host *shpnt)
pnp_device_detach(HOSTDATA(shpnt)->pnpdev);
#endif
- scsi_remove_host(shpnt);
+ list_del(&HOSTDATA(shpnt)->host_list);
scsi_host_put(shpnt);
}
@@ -979,7 +980,8 @@ static int setup_expected_interrupts(struct Scsi_Host *shpnt)
/*
* Queue a command and setup interrupts for a free bus.
*/
-static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct semaphore *sem, int phase, void (*done)(Scsi_Cmnd *))
+static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
+ int phase, void (*done)(Scsi_Cmnd *))
{
struct Scsi_Host *shpnt = SCpnt->device->host;
unsigned long flags;
@@ -987,34 +989,34 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct semaphore *sem, int p
#if defined(AHA152X_DEBUG)
if (HOSTDATA(shpnt)->debug & debug_queue) {
printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=",
- CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len, SCpnt->use_sg, SCpnt->request_bufflen);
+ CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len,
+ scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
__scsi_print_command(SCpnt->cmnd);
}
#endif
SCpnt->scsi_done = done;
- SCpnt->resid = SCpnt->request_bufflen;
SCpnt->SCp.phase = not_issued | phase;
- SCpnt->SCp.Status = CHECK_CONDITION;
+ SCpnt->SCp.Status = 0x1; /* Ilegal status by SCSI standard */
SCpnt->SCp.Message = 0;
SCpnt->SCp.have_data_in = 0;
SCpnt->SCp.sent_command = 0;
if(SCpnt->SCp.phase & (resetting|check_condition)) {
- if(SCpnt->host_scribble==0 || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
+ if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
return FAILED;
}
} else {
SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
- if(SCpnt->host_scribble==0) {
+ if(!SCpnt->host_scribble) {
printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
return FAILED;
}
}
SCNEXT(SCpnt) = NULL;
- SCSEM(SCpnt) = sem;
+ SCSEM(SCpnt) = complete;
/* setup scratch area
SCp.ptr : buffer pointer
@@ -1022,16 +1024,19 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct semaphore *sem, int p
SCp.buffer : next buffer
SCp.buffers_residual : left buffers in list
SCp.phase : current state of the command */
- if (SCpnt->use_sg) {
- SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->request_buffer;
- SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
- SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
- SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1;
- } else {
- SCpnt->SCp.ptr = (char *) SCpnt->request_buffer;
- SCpnt->SCp.this_residual = SCpnt->request_bufflen;
+
+ if ((phase & resetting) || !scsi_sglist(SCpnt)) {
+ SCpnt->SCp.ptr = NULL;
+ SCpnt->SCp.this_residual = 0;
+ scsi_set_resid(SCpnt, 0);
SCpnt->SCp.buffer = NULL;
SCpnt->SCp.buffers_residual = 0;
+ } else {
+ scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
+ SCpnt->SCp.buffer = scsi_sglist(SCpnt);
+ SCpnt->SCp.ptr = SG_ADDRESS(SCpnt->SCp.buffer);
+ SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
+ SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1;
}
DO_LOCK(flags);
@@ -1059,7 +1064,7 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct semaphore *sem, int p
* queue a command
*
*/
-static int aha152x_queue(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
+static int aha152x_queue_lck(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
{
#if 0
if(*SCpnt->cmnd == REQUEST_SENSE) {
@@ -1073,6 +1078,8 @@ static int aha152x_queue(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
return aha152x_internal_queue(SCpnt, NULL, 0, done);
}
+static DEF_SCSI_QCMD(aha152x_queue)
+
/*
*
@@ -1085,9 +1092,9 @@ static void reset_done(Scsi_Cmnd *SCpnt)
DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt));
#endif
if(SCSEM(SCpnt)) {
- up(SCSEM(SCpnt));
+ complete(SCSEM(SCpnt));
} else {
- printk(KERN_ERR "aha152x: reset_done w/o semaphore\n");
+ printk(KERN_ERR "aha152x: reset_done w/o completion\n");
}
}
@@ -1140,21 +1147,6 @@ static int aha152x_abort(Scsi_Cmnd *SCpnt)
return FAILED;
}
-static void timer_expired(unsigned long p)
-{
- Scsi_Cmnd *SCp = (Scsi_Cmnd *)p;
- struct semaphore *sem = SCSEM(SCp);
- struct Scsi_Host *shpnt = SCp->device->host;
- unsigned long flags;
-
- /* remove command from issue queue */
- DO_LOCK(flags);
- remove_SC(&ISSUE_SC, SCp);
- DO_UNLOCK(flags);
-
- up(sem);
-}
-
/*
* Reset a device
*
@@ -1162,10 +1154,11 @@ static void timer_expired(unsigned long p)
static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
{
struct Scsi_Host *shpnt = SCpnt->device->host;
- DECLARE_MUTEX_LOCKED(sem);
- struct timer_list timer;
+ DECLARE_COMPLETION(done);
int ret, issued, disconnected;
+ unsigned char old_cmd_len = SCpnt->cmd_len;
unsigned long flags;
+ unsigned long timeleft;
#if defined(AHA152X_DEBUG)
if(HOSTDATA(shpnt)->debug & debug_eh) {
@@ -1180,29 +1173,23 @@ static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
}
DO_LOCK(flags);
- issued = remove_SC(&ISSUE_SC, SCpnt)==0;
+ issued = remove_SC(&ISSUE_SC, SCpnt) == NULL;
disconnected = issued && remove_SC(&DISCONNECTED_SC, SCpnt);
DO_UNLOCK(flags);
SCpnt->cmd_len = 0;
- SCpnt->use_sg = 0;
- SCpnt->request_buffer = NULL;
- SCpnt->request_bufflen = 0;
-
- init_timer(&timer);
- timer.data = (unsigned long) SCpnt;
- timer.expires = jiffies + 100*HZ; /* 10s */
- timer.function = (void (*)(unsigned long)) timer_expired;
-
- aha152x_internal_queue(SCpnt, &sem, resetting, reset_done);
- add_timer(&timer);
- down(&sem);
- del_timer(&timer);
-
- SCpnt->cmd_len = SCpnt->old_cmd_len;
- SCpnt->use_sg = SCpnt->old_use_sg;
- SCpnt->request_buffer = SCpnt->buffer;
- SCpnt->request_bufflen = SCpnt->bufflen;
+
+ aha152x_internal_queue(SCpnt, &done, resetting, reset_done);
+
+ timeleft = wait_for_completion_timeout(&done, 100*HZ);
+ if (!timeleft) {
+ /* remove command from issue queue */
+ DO_LOCK(flags);
+ remove_SC(&ISSUE_SC, SCpnt);
+ DO_UNLOCK(flags);
+ }
+
+ SCpnt->cmd_len = old_cmd_len;
DO_LOCK(flags);
@@ -1260,16 +1247,15 @@ static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
* Reset the bus
*
*/
-static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
+static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
{
- struct Scsi_Host *shpnt = SCpnt->device->host;
unsigned long flags;
DO_LOCK(flags);
#if defined(AHA152X_DEBUG)
if(HOSTDATA(shpnt)->debug & debug_eh) {
- printk(DEBUG_LEAD "aha152x_bus_reset(%p)", CMDINFO(SCpnt), SCpnt);
+ printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
show_queues(shpnt);
}
#endif
@@ -1277,14 +1263,14 @@ static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
free_hard_reset_SCs(shpnt, &ISSUE_SC);
free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
- DPRINTK(debug_eh, DEBUG_LEAD "resetting bus\n", CMDINFO(SCpnt));
+ DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
SETPORT(SCSISEQ, SCSIRSTO);
mdelay(256);
SETPORT(SCSISEQ, 0);
mdelay(DELAY);
- DPRINTK(debug_eh, DEBUG_LEAD "bus resetted\n", CMDINFO(SCpnt));
+ DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
setup_expected_interrupts(shpnt);
if(HOSTDATA(shpnt)->commands==0)
@@ -1295,6 +1281,14 @@ static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
return SUCCESS;
}
+/*
+ * Reset the bus
+ *
+ */
+static int aha152x_bus_reset(Scsi_Cmnd *SCpnt)
+{
+ return aha152x_bus_reset_host(SCpnt->device->host);
+}
/*
* Restore default values to the AIC-6260 registers and reset the fifos
@@ -1337,23 +1331,28 @@ static void reset_ports(struct Scsi_Host *shpnt)
* Reset the host (bus and controller)
*
*/
-int aha152x_host_reset(Scsi_Cmnd * SCpnt)
+int aha152x_host_reset_host(struct Scsi_Host *shpnt)
{
-#if defined(AHA152X_DEBUG)
- struct Scsi_Host *shpnt = SCpnt->device->host;
-#endif
-
- DPRINTK(debug_eh, DEBUG_LEAD "aha152x_host_reset(%p)\n", CMDINFO(SCpnt), SCpnt);
+ DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
- aha152x_bus_reset(SCpnt);
+ aha152x_bus_reset_host(shpnt);
- DPRINTK(debug_eh, DEBUG_LEAD "resetting ports\n", CMDINFO(SCpnt));
- reset_ports(SCpnt->device->host);
+ DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
+ reset_ports(shpnt);
return SUCCESS;
}
/*
+ * Reset the host (bus and controller)
+ *
+ */
+static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
+{
+ return aha152x_host_reset_host(SCpnt->device->host);
+}
+
+/*
* Return the "logical geometry"
*
*/
@@ -1427,33 +1426,27 @@ static struct work_struct aha152x_tq;
* Run service completions on the card with interrupts enabled.
*
*/
-static void run(void)
+static void run(struct work_struct *work)
{
- int i;
- for (i = 0; i<ARRAY_SIZE(aha152x_host); i++) {
- struct Scsi_Host *shpnt = aha152x_host[i];
- if (shpnt && HOSTDATA(shpnt)->service) {
- HOSTDATA(shpnt)->service=0;
- is_complete(shpnt);
- }
+ struct aha152x_hostdata *hd;
+
+ list_for_each_entry(hd, &aha152x_host_list, host_list) {
+ struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
+
+ is_complete(shost);
}
}
/*
- * Interrupts handler
+ * Interrupt handler
*
*/
-
-static irqreturn_t intr(int irqno, void *dev_id, struct pt_regs *regs)
+static irqreturn_t intr(int irqno, void *dev_id)
{
- struct Scsi_Host *shpnt = lookup_irq(irqno);
+ struct Scsi_Host *shpnt = dev_id;
+ unsigned long flags;
unsigned char rev, dmacntrl0;
- if (!shpnt) {
- printk(KERN_ERR "aha152x: catched interrupt %d for unknown controller.\n", irqno);
- return IRQ_NONE;
- }
-
/*
* Read a couple of registers that are known to not be all 1's. If
* we read all 1's (-1), that means that either:
@@ -1472,23 +1465,23 @@ static irqreturn_t intr(int irqno, void *dev_id, struct pt_regs *regs)
if ((rev == 0xFF) && (dmacntrl0 == 0xFF))
return IRQ_NONE;
+ if( TESTLO(DMASTAT, INTSTAT) )
+ return IRQ_NONE;
+
/* no more interrupts from the controller, while we're busy.
INTEN is restored by the BH handler */
CLRBITS(DMACNTRL0, INTEN);
-#if 0
- /* check if there is already something to be
- serviced; should not happen */
- if(HOSTDATA(shpnt)->service) {
- printk(KERN_ERR "aha152x%d: lost interrupt (%d)\n", HOSTNO, HOSTDATA(shpnt)->service);
- show_queues(shpnt);
+ DO_LOCK(flags);
+ if( HOSTDATA(shpnt)->service==0 ) {
+ HOSTDATA(shpnt)->service=1;
+
+ /* Poke the BH handler */
+ INIT_WORK(&aha152x_tq, run);
+ schedule_work(&aha152x_tq);
}
-#endif
-
- /* Poke the BH handler */
- HOSTDATA(shpnt)->service++;
- INIT_WORK(&aha152x_tq, (void *) run, NULL);
- schedule_work(&aha152x_tq);
+ DO_UNLOCK(flags);
+
return IRQ_HANDLED;
}
@@ -1531,8 +1524,8 @@ static void busfree_run(struct Scsi_Host *shpnt)
/* target sent DISCONNECT */
DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n",
CMDINFO(CURRENT_SC),
- CURRENT_SC->resid,
- CURRENT_SC->request_bufflen);
+ scsi_get_resid(CURRENT_SC),
+ scsi_bufflen(CURRENT_SC));
#if defined(AHA152X_STAT)
HOSTDATA(shpnt)->disconnections++;
#endif
@@ -1557,6 +1550,9 @@ static void busfree_run(struct Scsi_Host *shpnt)
#endif
if(DONE_SC->SCp.phase & check_condition) {
+ struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC;
+ struct aha152x_scdata *sc = SCDATA(cmd);
+
#if 0
if(HOSTDATA(shpnt)->debug & debug_eh) {
printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC));
@@ -1564,19 +1560,14 @@ static void busfree_run(struct Scsi_Host *shpnt)
}
#endif
- /* restore old command */
- memcpy((void *) DONE_SC->cmnd, (void *) DONE_SC->data_cmnd, sizeof(DONE_SC->data_cmnd));
- DONE_SC->request_buffer = DONE_SC->buffer;
- DONE_SC->request_bufflen = DONE_SC->bufflen;
- DONE_SC->use_sg = DONE_SC->old_use_sg;
- DONE_SC->cmd_len = DONE_SC->old_cmd_len;
+ scsi_eh_restore_cmnd(cmd, &sc->ses);
- DONE_SC->SCp.Status = 0x02;
+ cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
HOSTDATA(shpnt)->commands--;
if (!HOSTDATA(shpnt)->commands)
SETPORT(PORTA, 0); /* turn led off */
- } else if(DONE_SC->SCp.Status==0x02) {
+ } else if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION) {
#if defined(AHA152X_STAT)
HOSTDATA(shpnt)->busfree_with_check_condition++;
#endif
@@ -1584,24 +1575,19 @@ static void busfree_run(struct Scsi_Host *shpnt)
DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC));
#endif
- if(!(DONE_SC->SCp.Status & not_issued)) {
+ if(!(DONE_SC->SCp.phase & not_issued)) {
+ struct aha152x_scdata *sc;
Scsi_Cmnd *ptr = DONE_SC;
DONE_SC=NULL;
#if 0
DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
#endif
- ptr->cmnd[0] = REQUEST_SENSE;
- ptr->cmnd[1] = 0;
- ptr->cmnd[2] = 0;
- ptr->cmnd[3] = 0;
- ptr->cmnd[4] = sizeof(ptr->sense_buffer);
- ptr->cmnd[5] = 0;
- ptr->cmd_len = 6;
- ptr->use_sg = 0;
- ptr->request_buffer = ptr->sense_buffer;
- ptr->request_bufflen = sizeof(ptr->sense_buffer);
-
+ sc = SCDATA(ptr);
+ /* It was allocated in aha152x_internal_queue? */
+ BUG_ON(!sc);
+ scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0);
+
DO_UNLOCK(flags);
aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
DO_LOCK(flags);
@@ -1708,12 +1694,7 @@ static void seldo_run(struct Scsi_Host *shpnt)
ADDMSGO(BUS_DEVICE_RESET);
} else if (SYNCNEG==0 && SYNCHRONOUS) {
CURRENT_SC->SCp.phase |= syncneg;
- ADDMSGO(EXTENDED_MESSAGE);
- ADDMSGO(3);
- ADDMSGO(EXTENDED_SDTR);
- ADDMSGO(50); /* 200ns */
- ADDMSGO(8); /* 8 byte req/ack offset */
-
+ MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
SYNCNEG=1; /* negotiation in progress */
}
@@ -2182,7 +2163,8 @@ static void datai_init(struct Scsi_Host *shpnt)
DATA_LEN=0;
DPRINTK(debug_datai,
DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n",
- CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid);
+ CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
+ scsi_get_resid(CURRENT_SC));
}
static void datai_run(struct Scsi_Host *shpnt)
@@ -2295,11 +2277,12 @@ static void datai_run(struct Scsi_Host *shpnt)
static void datai_end(struct Scsi_Host *shpnt)
{
- CURRENT_SC->resid -= GETSTCNT();
+ CMD_INC_RESID(CURRENT_SC, -GETSTCNT());
DPRINTK(debug_datai,
DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n",
- CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid, GETSTCNT());
+ CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
+ scsi_get_resid(CURRENT_SC), GETSTCNT());
SETPORT(SXFRCTL0, CH1|CLRSTCNT);
SETPORT(DMACNTRL0, 0);
@@ -2320,11 +2303,12 @@ static void datao_init(struct Scsi_Host *shpnt)
SETPORT(SIMODE0, 0);
SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
- DATA_LEN = CURRENT_SC->resid;
+ DATA_LEN = scsi_get_resid(CURRENT_SC);
DPRINTK(debug_datao,
DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n",
- CMDINFO(CURRENT_SC), CURRENT_SC->request_bufflen, CURRENT_SC->resid);
+ CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
+ scsi_get_resid(CURRENT_SC));
}
static void datao_run(struct Scsi_Host *shpnt)
@@ -2348,7 +2332,7 @@ static void datao_run(struct Scsi_Host *shpnt)
SETPORT(DMACNTRL0,WRITE_READ|ENDMA|_8BIT);
SETPORT(DATAPORT, *CURRENT_SC->SCp.ptr++);
CURRENT_SC->SCp.this_residual--;
- CURRENT_SC->resid--;
+ CMD_INC_RESID(CURRENT_SC, -1);
SETPORT(DMACNTRL0,WRITE_READ|ENDMA);
}
@@ -2357,7 +2341,7 @@ static void datao_run(struct Scsi_Host *shpnt)
outsw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
CURRENT_SC->SCp.ptr += 2 * data_count;
CURRENT_SC->SCp.this_residual -= 2 * data_count;
- CURRENT_SC->resid -= 2 * data_count;
+ CMD_INC_RESID(CURRENT_SC, -2 * data_count);
}
if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
@@ -2383,35 +2367,34 @@ static void datao_run(struct Scsi_Host *shpnt)
static void datao_end(struct Scsi_Host *shpnt)
{
if(TESTLO(DMASTAT, DFIFOEMP)) {
- int data_count = (DATA_LEN - CURRENT_SC->resid) - GETSTCNT();
+ int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) -
+ GETSTCNT();
DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n",
CMDINFO(CURRENT_SC),
data_count,
- DATA_LEN-CURRENT_SC->resid,
+ DATA_LEN - scsi_get_resid(CURRENT_SC),
GETSTCNT());
- CURRENT_SC->resid += data_count;
+ CMD_INC_RESID(CURRENT_SC, data_count);
- if(CURRENT_SC->use_sg) {
- data_count -= CURRENT_SC->SCp.ptr - SG_ADDRESS(CURRENT_SC->SCp.buffer);
- while(data_count>0) {
- CURRENT_SC->SCp.buffer--;
- CURRENT_SC->SCp.buffers_residual++;
- data_count -= CURRENT_SC->SCp.buffer->length;
- }
- CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) - data_count;
- CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length + data_count;
- } else {
- CURRENT_SC->SCp.ptr -= data_count;
- CURRENT_SC->SCp.this_residual += data_count;
+ data_count -= CURRENT_SC->SCp.ptr -
+ SG_ADDRESS(CURRENT_SC->SCp.buffer);
+ while(data_count>0) {
+ CURRENT_SC->SCp.buffer--;
+ CURRENT_SC->SCp.buffers_residual++;
+ data_count -= CURRENT_SC->SCp.buffer->length;
}
+ CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) -
+ data_count;
+ CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length +
+ data_count;
}
DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n",
CMDINFO(CURRENT_SC),
- CURRENT_SC->request_bufflen,
- CURRENT_SC->resid,
+ scsi_bufflen(CURRENT_SC),
+ scsi_get_resid(CURRENT_SC),
GETSTCNT());
SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
@@ -2527,7 +2510,18 @@ static void is_complete(struct Scsi_Host *shpnt)
unsigned long flags;
int pending;
+ if(!shpnt)
+ return;
+
DO_LOCK(flags);
+
+ if( HOSTDATA(shpnt)->service==0 ) {
+ DO_UNLOCK(flags);
+ return;
+ }
+
+ HOSTDATA(shpnt)->service = 0;
+
if(HOSTDATA(shpnt)->in_intr) {
DO_UNLOCK(flags);
/* aha152x_error never returns.. */
@@ -2927,7 +2921,7 @@ static void show_command(Scsi_Cmnd *ptr)
__scsi_print_command(ptr->cmnd);
printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |",
- ptr->request_bufflen, ptr->resid);
+ scsi_bufflen(ptr), scsi_get_resid(ptr));
if (ptr->SCp.phase & not_issued)
printk("not issued|");
@@ -2983,21 +2977,21 @@ static void show_queues(struct Scsi_Host *shpnt)
}
#undef SPRINTF
-#define SPRINTF(args...) pos += sprintf(pos, ## args)
+#define SPRINTF(args...) seq_printf(m, ##args)
-static int get_command(char *pos, Scsi_Cmnd * ptr)
+static void get_command(struct seq_file *m, Scsi_Cmnd * ptr)
{
- char *start = pos;
int i;
- SPRINTF("0x%08x: target=%d; lun=%d; cmnd=( ",
- (unsigned int) ptr, ptr->device->id, ptr->device->lun);
+ SPRINTF("%p: target=%d; lun=%d; cmnd=( ",
+ ptr, ptr->device->id, ptr->device->lun);
for (i = 0; i < COMMAND_SIZE(ptr->cmnd[0]); i++)
SPRINTF("0x%02x ", ptr->cmnd[i]);
SPRINTF("); resid=%d; residual=%d; buffers=%d; phase |",
- ptr->resid, ptr->SCp.this_residual, ptr->SCp.buffers_residual);
+ scsi_get_resid(ptr), ptr->SCp.this_residual,
+ ptr->SCp.buffers_residual);
if (ptr->SCp.phase & not_issued)
SPRINTF("not issued|");
@@ -3016,13 +3010,10 @@ static int get_command(char *pos, Scsi_Cmnd * ptr)
if (ptr->SCp.phase & syncneg)
SPRINTF("syncneg|");
SPRINTF("; next=0x%p\n", SCNEXT(ptr));
-
- return (pos - start);
}
-static int get_ports(struct Scsi_Host *shpnt, char *pos)
+static void get_ports(struct seq_file *m, struct Scsi_Host *shpnt)
{
- char *start = pos;
int s;
SPRINTF("\n%s: %s(%s) ", CURRENT_SC ? "on bus" : "waiting", states[STATE].name, states[PREVSTATE].name);
@@ -3278,11 +3269,9 @@ static int get_ports(struct Scsi_Host *shpnt, char *pos)
if (s & ENREQINIT)
SPRINTF("ENREQINIT ");
SPRINTF(")\n");
-
- return (pos - start);
}
-static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
+static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length)
{
if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
return -EINVAL;
@@ -3325,26 +3314,11 @@ static int aha152x_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
return length;
}
-#undef SPRINTF
-#define SPRINTF(args...) \
- do { if(pos < buffer + length) pos += sprintf(pos, ## args); } while(0)
-
-static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start,
- off_t offset, int length, int inout)
+static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt)
{
int i;
- char *pos = buffer;
Scsi_Cmnd *ptr;
unsigned long flags;
- int thislength;
-
- DPRINTK(debug_procinfo,
- KERN_DEBUG "aha152x_proc_info: buffer=%p offset=%ld length=%d hostno=%d inout=%d\n",
- buffer, offset, length, shpnt->host_no, inout);
-
-
- if (inout)
- return aha152x_set_info(buffer, length, shpnt);
SPRINTF(AHA152X_REVID "\n");
@@ -3386,7 +3360,7 @@ static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start
PDEBUG(debug_datai, "data in");
PDEBUG(debug_datao, "data out");
PDEBUG(debug_eh, "eh");
- PDEBUG(debug_locks, "locks");
+ PDEBUG(debug_locking, "locks");
PDEBUG(debug_phases, "phases");
SPRINTF("\n");
@@ -3397,25 +3371,25 @@ static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start
if (ISSUE_SC) {
SPRINTF("not yet issued commands:\n");
for (ptr = ISSUE_SC; ptr; ptr = SCNEXT(ptr))
- pos += get_command(pos, ptr);
+ get_command(m, ptr);
} else
SPRINTF("no not yet issued commands\n");
DO_UNLOCK(flags);
if (CURRENT_SC) {
SPRINTF("current command:\n");
- pos += get_command(pos, CURRENT_SC);
+ get_command(m, CURRENT_SC);
} else
SPRINTF("no current command\n");
if (DISCONNECTED_SC) {
SPRINTF("disconnected commands:\n");
for (ptr = DISCONNECTED_SC; ptr; ptr = SCNEXT(ptr))
- pos += get_command(pos, ptr);
+ get_command(m, ptr);
} else
SPRINTF("no disconnected commands\n");
- pos += get_ports(shpnt, pos);
+ get_ports(m, shpnt);
#if defined(AHA152X_STAT)
SPRINTF("statistics:\n"
@@ -3445,31 +3419,21 @@ static int aha152x_proc_info(struct Scsi_Host *shpnt, char *buffer, char **start
HOSTDATA(shpnt)->time[i]);
}
#endif
+ return 0;
+}
- DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: pos=%p\n", pos);
-
- thislength = pos - (buffer + offset);
- DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: length=%d thislength=%d\n", length, thislength);
-
- if(thislength<0) {
- DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: output too short\n");
- *start = NULL;
- return 0;
- }
-
- thislength = thislength<length ? thislength : length;
-
- DPRINTK(debug_procinfo, KERN_DEBUG "aha152x_proc_info: return %d\n", thislength);
-
- *start = buffer + offset;
- return thislength < length ? thislength : length;
+static int aha152x_adjust_queue(struct scsi_device *device)
+{
+ blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
+ return 0;
}
static struct scsi_host_template aha152x_driver_template = {
.module = THIS_MODULE,
.name = AHA152X_REVID,
.proc_name = "aha152x",
- .proc_info = aha152x_proc_info,
+ .show_info = aha152x_show_info,
+ .write_info = aha152x_set_info,
.queuecommand = aha152x_queue,
.eh_abort_handler = aha152x_abort,
.eh_device_reset_handler = aha152x_device_reset,
@@ -3481,6 +3445,7 @@ static struct scsi_host_template aha152x_driver_template = {
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
.use_clustering = DISABLE_CLUSTERING,
+ .slave_alloc = aha152x_adjust_queue,
};
#if !defined(PCMCIA)
@@ -3591,7 +3556,7 @@ static int checksetup(struct aha152x_setup *setup)
if (i == ARRAY_SIZE(ports))
return 0;
- if ( request_region(setup->io_port, IO_RANGE, "aha152x")==0 ) {
+ if (!request_region(setup->io_port, IO_RANGE, "aha152x")) {
printk(KERN_ERR "aha152x: io port 0x%x busy.\n", setup->io_port);
return 0;
}
@@ -3839,7 +3804,7 @@ static int __init aha152x_init(void)
iounmap(p);
}
if (!ok && setup_count == 0)
- return 0;
+ return -ENODEV;
printk(KERN_INFO "aha152x: BIOS test: passed, ");
#else
@@ -3851,7 +3816,7 @@ static int __init aha152x_init(void)
if ((setup_count == 1) && (setup[0].io_port == ports[i]))
continue;
- if ( request_region(ports[i], IO_RANGE, "aha152x")==0 ) {
+ if (!request_region(ports[i], IO_RANGE, "aha152x")) {
printk(KERN_ERR "aha152x: io port 0x%x busy.\n", ports[i]);
continue;
}
@@ -3918,16 +3883,17 @@ static int __init aha152x_init(void)
#endif
}
- return registered_count>0;
+ return 0;
}
static void __exit aha152x_exit(void)
{
- int i;
+ struct aha152x_hostdata *hd, *tmp;
+
+ list_for_each_entry_safe(hd, tmp, &aha152x_host_list, host_list) {
+ struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
- for(i=0; i<ARRAY_SIZE(setup); i++) {
- aha152x_release(aha152x_host[i]);
- aha152x_host[i]=NULL;
+ aha152x_release(shost);
}
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 22:00:15 +0000