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[SCSI] aic79xx: Remove busyq

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From: Jeff Garzik <jgarzik@pobox.com>

This patch removes the busyq in aic79xx and uses the command-queue from 
the midlayer instead. Additionally some dead code is removed.

Signed-off-by: Hannes Reinecke <hare@suse.de>

Fixed rejections

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Hannes Reinecke 2005-07-22 16:42:28 +02:00 committed by James Bottomley
parent 8d6810d33e
commit 60a1321384
4 changed files with 154 additions and 739 deletions
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1
drivers/scsi/aic7xxx/aic79xx_core.c
View File

@ -9039,7 +9039,6 @@ ahd_dump_card_state(struct ahd_softc *ahd)
ahd_outb(ahd, STACK, (ahd->saved_stack[i] >> 8) & 0xFF);
}
printf("\n<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>\n");
ahd_platform_dump_card_state(ahd);
ahd_restore_modes(ahd, saved_modes);
if (paused == 0)
ahd_unpause(ahd);

854
drivers/scsi/aic7xxx/aic79xx_osm.c
View File

File diff suppressed because it is too large Load Diff

26
drivers/scsi/aic7xxx/aic79xx_osm.h
View File

@ -252,11 +252,7 @@ ahd_scb_timer_reset(struct scb *scb, u_int usec)
/***************************** SMP support ************************************/
#include <linux/spinlock.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) || defined(SCSI_HAS_HOST_LOCK))
#define AHD_SCSI_HAS_HOST_LOCK 1
#else
#define AHD_SCSI_HAS_HOST_LOCK 0
#endif
#define AIC79XX_DRIVER_VERSION "1.3.11"
@ -297,12 +293,11 @@ struct ahd_cmd {
* after a successfully completed inquiry command to the target when
* that inquiry data indicates a lun is present.
*/
TAILQ_HEAD(ahd_busyq, ahd_cmd);
typedef enum {
AHD_DEV_UNCONFIGURED = 0x01,
AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
AHD_DEV_TIMER_ACTIVE = 0x04, /* Our timer is active */
AHD_DEV_ON_RUN_LIST = 0x08, /* Queued to be run later */
AHD_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
AHD_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
AHD_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
@ -312,7 +307,6 @@ typedef enum {
struct ahd_linux_target;
struct ahd_linux_device {
TAILQ_ENTRY(ahd_linux_device) links;
struct ahd_busyq busyq;
/*
* The number of transactions currently
@ -453,18 +447,7 @@ struct ahd_linux_target {
* manner and are allocated below 4GB, the number of S/G segments is
* unrestricted.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
/*
* We dynamically adjust the number of segments in pre-2.5 kernels to
* avoid fragmentation issues in the SCSI mid-layer's private memory
* allocator. See aic79xx_osm.c ahd_linux_size_nseg() for details.
*/
extern u_int ahd_linux_nseg;
#define AHD_NSEG ahd_linux_nseg
#define AHD_LINUX_MIN_NSEG 64
#else
#define AHD_NSEG 128
#endif
/*
* Per-SCB OSM storage.
@ -502,11 +485,9 @@ struct ahd_platform_data {
* Fields accessed from interrupt context.
*/
struct ahd_linux_target *targets[AHD_NUM_TARGETS];
TAILQ_HEAD(, ahd_linux_device) device_runq;
struct ahd_completeq completeq;
spinlock_t spin_lock;
struct tasklet_struct runq_tasklet;
u_int qfrozen;
pid_t dv_pid;
struct timer_list completeq_timer;
@ -925,12 +906,8 @@ ahd_flush_device_writes(struct ahd_softc *ahd)
}
/**************************** Proc FS Support *********************************/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
int ahd_linux_proc_info(char *, char **, off_t, int, int, int);
#else
int ahd_linux_proc_info(struct Scsi_Host *, char *, char **,
off_t, int, int);
#endif
/*************************** Domain Validation ********************************/
#define AHD_DV_CMD(cmd) ((cmd)->scsi_done == ahd_linux_dv_complete)
@ -1117,7 +1094,6 @@ void ahd_done(struct ahd_softc*, struct scb*);
void ahd_send_async(struct ahd_softc *, char channel,
u_int target, u_int lun, ac_code, void *);
void ahd_print_path(struct ahd_softc *, struct scb *);
void ahd_platform_dump_card_state(struct ahd_softc *ahd);
#ifdef CONFIG_PCI
#define AHD_PCI_CONFIG 1

12
drivers/scsi/aic7xxx/aic79xx_proc.c
View File

@ -278,13 +278,8 @@ done:
* Return information to handle /proc support for the driver.
*/
int
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
ahd_linux_proc_info(char *buffer, char **start, off_t offset,
int length, int hostno, int inout)
#else
ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
off_t offset, int length, int inout)
#endif
{
struct ahd_softc *ahd;
struct info_str info;
@ -296,14 +291,7 @@ ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
retval = -EINVAL;
ahd_list_lock(&l);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
TAILQ_FOREACH(ahd, &ahd_tailq, links) {
if (ahd->platform_data->host->host_no == hostno)
break;
}
#else
ahd = ahd_find_softc(*(struct ahd_softc **)shost->hostdata);
#endif
if (ahd == NULL)
goto done;