[SCSI] aic7xxx: Remove slave_destroy

This is a cross-port from aic79xx; we still hit the occasional
BUG_ON in slave_destroy. And again we don't really need the
slave_destroy callback nor the ahc_linux_target structure
at all.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/aic7xxx/aic7xxx.h b/drivers/scsi/aic7xxx/aic7xxx.h
index 5802f33..954c7c2 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx.h
+++ b/drivers/scsi/aic7xxx/aic7xxx.h
@@ -1279,6 +1279,7 @@ typedef enum {
 } ahc_queue_alg;
 
 void                   ahc_set_tags(struct ahc_softc *ahc,
+                                    struct scsi_cmnd *cmd,
                                     struct ahc_devinfo *devinfo,
                                     ahc_queue_alg alg);
 

diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c
index 46bd7bc..50ef785 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx_core.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_core.c
@@ -1986,7 +1986,7 @@ ahc_set_syncrate(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
                tinfo->curr.ppr_options = ppr_options;
 
                ahc_send_async(ahc, devinfo->channel, devinfo->target,
-                              CAM_LUN_WILDCARD, AC_TRANSFER_NEG, NULL);
+                              CAM_LUN_WILDCARD, AC_TRANSFER_NEG);
                if (bootverbose) {
                        if (offset != 0) {
                                printf("%s: target %d synchronous at %sMHz%s, "
@@ -2056,7 +2056,7 @@ ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
                tinfo->curr.width = width;
 
                ahc_send_async(ahc, devinfo->channel, devinfo->target,
-                              CAM_LUN_WILDCARD, AC_TRANSFER_NEG, NULL);
+                              CAM_LUN_WILDCARD, AC_TRANSFER_NEG);
                if (bootverbose) {
                        printf("%s: target %d using %dbit transfers\n",
                               ahc_name(ahc), devinfo->target,
@@ -2074,12 +2074,14 @@ ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
  * Update the current state of tagged queuing for a given target.
  */
 void
-ahc_set_tags(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
-            ahc_queue_alg alg)
+ahc_set_tags(struct ahc_softc *ahc, struct scsi_cmnd *cmd,
+            struct ahc_devinfo *devinfo, ahc_queue_alg alg)
 {
-       ahc_platform_set_tags(ahc, devinfo, alg);
+       struct scsi_device *sdev = cmd->device;
+
+       ahc_platform_set_tags(ahc, sdev, devinfo, alg);
        ahc_send_async(ahc, devinfo->channel, devinfo->target,
-                      devinfo->lun, AC_TRANSFER_NEG, &alg);
+                      devinfo->lun, AC_TRANSFER_NEG);
 }
 
 /*
@@ -3489,7 +3491,7 @@ ahc_handle_msg_reject(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
                        printf("(%s:%c:%d:%d): refuses tagged commands.  "
                               "Performing non-tagged I/O\n", ahc_name(ahc),
                               devinfo->channel, devinfo->target, devinfo->lun);
-                       ahc_set_tags(ahc, devinfo, AHC_QUEUE_NONE);
+                       ahc_set_tags(ahc, scb->io_ctx, devinfo, AHC_QUEUE_NONE);
                        mask = ~0x23;
                } else {
                        printf("(%s:%c:%d:%d): refuses %s tagged commands.  "
@@ -3497,7 +3499,7 @@ ahc_handle_msg_reject(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
                               ahc_name(ahc), devinfo->channel, devinfo->target,
                               devinfo->lun, tag_type == MSG_ORDERED_TASK
                               ? "ordered" : "head of queue");
-                       ahc_set_tags(ahc, devinfo, AHC_QUEUE_BASIC);
+                       ahc_set_tags(ahc, scb->io_ctx, devinfo, AHC_QUEUE_BASIC);
                        mask = ~0x03;
                }
 
@@ -3763,7 +3765,7 @@ ahc_handle_devreset(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
        
        if (status != CAM_SEL_TIMEOUT)
                ahc_send_async(ahc, devinfo->channel, devinfo->target,
-                              CAM_LUN_WILDCARD, AC_SENT_BDR, NULL);
+                              CAM_LUN_WILDCARD, AC_SENT_BDR);
 
        if (message != NULL
         && (verbose_level <= bootverbose))
@@ -6018,7 +6020,7 @@ ahc_reset_channel(struct ahc_softc *ahc, char channel, int initiate_reset)
 #endif
        /* Notify the XPT that a bus reset occurred */
        ahc_send_async(ahc, devinfo.channel, CAM_TARGET_WILDCARD,
-                      CAM_LUN_WILDCARD, AC_BUS_RESET, NULL);
+                      CAM_LUN_WILDCARD, AC_BUS_RESET);
 
        /*
         * Revert to async/narrow transfers until we renegotiate.

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index ed85057..660f26e 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -512,7 +512,6 @@ ahc_linux_target_alloc(struct scsi_target *starget)
        struct seeprom_config *sc = ahc->seep_config;
        unsigned long flags;
        struct scsi_target **ahc_targp = ahc_linux_target_in_softc(starget);
-       struct ahc_linux_target *targ = scsi_transport_target_data(starget);
        unsigned short scsirate;
        struct ahc_devinfo devinfo;
        struct ahc_initiator_tinfo *tinfo;
@@ -533,7 +532,6 @@ ahc_linux_target_alloc(struct scsi_target *starget)
        BUG_ON(*ahc_targp != NULL);
 
        *ahc_targp = starget;
-       memset(targ, 0, sizeof(*targ));
 
        if (sc) {
                int maxsync = AHC_SYNCRATE_DT;
@@ -594,14 +592,11 @@ ahc_linux_slave_alloc(struct scsi_device *sdev)
        struct  ahc_softc *ahc =
                *((struct ahc_softc **)sdev->host->hostdata);
        struct scsi_target *starget = sdev->sdev_target;
-       struct ahc_linux_target *targ = scsi_transport_target_data(starget);
        struct ahc_linux_device *dev;
 
        if (bootverbose)
                printf("%s: Slave Alloc %d\n", ahc_name(ahc), sdev->id);
 
-       BUG_ON(targ->sdev[sdev->lun] != NULL);
-
        dev = scsi_transport_device_data(sdev);
        memset(dev, 0, sizeof(*dev));
 
@@ -618,8 +613,6 @@ ahc_linux_slave_alloc(struct scsi_device *sdev)
         */
        dev->maxtags = 0;
        
-       targ->sdev[sdev->lun] = sdev;
-
        spi_period(starget) = 0;
 
        return 0;
@@ -644,22 +637,6 @@ ahc_linux_slave_configure(struct scsi_device *sdev)
        return 0;
 }
 
-static void
-ahc_linux_slave_destroy(struct scsi_device *sdev)
-{
-       struct  ahc_softc *ahc;
-       struct  ahc_linux_device *dev = scsi_transport_device_data(sdev);
-       struct  ahc_linux_target *targ = scsi_transport_target_data(sdev->sdev_target);
-
-       ahc = *((struct ahc_softc **)sdev->host->hostdata);
-       if (bootverbose)
-               printf("%s: Slave Destroy %d\n", ahc_name(ahc), sdev->id);
-
-       BUG_ON(dev->active);
-
-       targ->sdev[sdev->lun] = NULL;
-}
-
 #if defined(__i386__)
 /*
  * Return the disk geometry for the given SCSI device.
@@ -782,7 +759,6 @@ struct scsi_host_template aic7xxx_driver_template = {
        .use_clustering         = ENABLE_CLUSTERING,
        .slave_alloc            = ahc_linux_slave_alloc,
        .slave_configure        = ahc_linux_slave_configure,
-       .slave_destroy          = ahc_linux_slave_destroy,
        .target_alloc           = ahc_linux_target_alloc,
        .target_destroy         = ahc_linux_target_destroy,
 };
@@ -1204,21 +1180,13 @@ void
 ahc_platform_free(struct ahc_softc *ahc)
 {
        struct scsi_target *starget;
-       int i, j;
+       int i;
 
        if (ahc->platform_data != NULL) {
                /* destroy all of the device and target objects */
                for (i = 0; i < AHC_NUM_TARGETS; i++) {
                        starget = ahc->platform_data->starget[i];
                        if (starget != NULL) {
-                               for (j = 0; j < AHC_NUM_LUNS; j++) {
-                                       struct ahc_linux_target *targ =
-                                               scsi_transport_target_data(starget);
-
-                                       if (targ->sdev[j] == NULL)
-                                               continue;
-                                       targ->sdev[j] = NULL;
-                               }
                                ahc->platform_data->starget[i] = NULL;
                        }
                }
@@ -1252,24 +1220,13 @@ ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb)
 }
 
 void
-ahc_platform_set_tags(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
-                     ahc_queue_alg alg)
+ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
+                     struct ahc_devinfo *devinfo, ahc_queue_alg alg)
 {
-       struct scsi_target *starget;
-       struct ahc_linux_target *targ;
        struct ahc_linux_device *dev;
-       struct scsi_device *sdev;
-       u_int target_offset;
        int was_queuing;
        int now_queuing;
 
-       target_offset = devinfo->target;
-       if (devinfo->channel != 'A')
-               target_offset += 8;
-       starget = ahc->platform_data->starget[target_offset];
-       targ = scsi_transport_target_data(starget);
-       BUG_ON(targ == NULL);
-       sdev = targ->sdev[devinfo->lun];
        if (sdev == NULL)
                return;
        dev = scsi_transport_device_data(sdev);
@@ -1402,11 +1359,15 @@ ahc_linux_device_queue_depth(struct scsi_device *sdev)
        tags = ahc_linux_user_tagdepth(ahc, &devinfo);
        if (tags != 0 && sdev->tagged_supported != 0) {
 
-               ahc_set_tags(ahc, &devinfo, AHC_QUEUE_TAGGED);
+               ahc_platform_set_tags(ahc, sdev, &devinfo, AHC_QUEUE_TAGGED);
+               ahc_send_async(ahc, devinfo.channel, devinfo.target,
+                              devinfo.lun, AC_TRANSFER_NEG);
                ahc_print_devinfo(ahc, &devinfo);
                printf("Tagged Queuing enabled.  Depth %d\n", tags);
        } else {
-               ahc_set_tags(ahc, &devinfo, AHC_QUEUE_NONE);
+               ahc_platform_set_tags(ahc, sdev, &devinfo, AHC_QUEUE_NONE);
+               ahc_send_async(ahc, devinfo.channel, devinfo.target,
+                              devinfo.lun, AC_TRANSFER_NEG);
        }
 }
 
@@ -1630,7 +1591,7 @@ ahc_platform_flushwork(struct ahc_softc *ahc)
 
 void
 ahc_send_async(struct ahc_softc *ahc, char channel,
-              u_int target, u_int lun, ac_code code, void *arg)
+              u_int target, u_int lun, ac_code code)
 {
        switch (code) {
        case AC_TRANSFER_NEG:
@@ -1947,7 +1908,7 @@ ahc_linux_handle_scsi_status(struct ahc_softc *ahc,
                        }
                        ahc_set_transaction_status(scb, CAM_REQUEUE_REQ);
                        ahc_set_scsi_status(scb, SCSI_STATUS_OK);
-                       ahc_platform_set_tags(ahc, &devinfo,
+                       ahc_platform_set_tags(ahc, sdev, &devinfo,
                                     (dev->flags & AHC_DEV_Q_BASIC)
                                   ? AHC_QUEUE_BASIC : AHC_QUEUE_TAGGED);
                        break;
@@ -1958,7 +1919,7 @@ ahc_linux_handle_scsi_status(struct ahc_softc *ahc,
                 */
                dev->openings = 1;
                ahc_set_scsi_status(scb, SCSI_STATUS_BUSY);
-               ahc_platform_set_tags(ahc, &devinfo,
+               ahc_platform_set_tags(ahc, sdev, &devinfo,
                             (dev->flags & AHC_DEV_Q_BASIC)
                           ? AHC_QUEUE_BASIC : AHC_QUEUE_TAGGED);
                break;
@@ -2600,8 +2561,6 @@ ahc_linux_init(void)
        if (!ahc_linux_transport_template)
                return -ENODEV;
 
-       scsi_transport_reserve_target(ahc_linux_transport_template,
-                                     sizeof(struct ahc_linux_target));
        scsi_transport_reserve_device(ahc_linux_transport_template,
                                      sizeof(struct ahc_linux_device));
 

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h
index a36b338..85ae5d8 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.h
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h
@@ -256,7 +256,6 @@ typedef enum {
        AHC_DEV_PERIODIC_OTAG    = 0x40, /* Send OTAG to prevent starvation */
 } ahc_linux_dev_flags;
 
-struct ahc_linux_target;
 struct ahc_linux_device {
        /*
         * The number of transactions currently
@@ -329,12 +328,6 @@ struct ahc_linux_device {
 #define AHC_OTAG_THRESH        500
 };
 
-struct ahc_linux_target {
-       struct scsi_device       *sdev[AHC_NUM_LUNS];
-       struct ahc_transinfo      last_tinfo;
-       struct ahc_softc         *ahc;
-};
-
 /********************* Definitions Required by the Core ***********************/
 /*
  * Number of SG segments we require.  So long as the S/G segments for
@@ -822,7 +815,7 @@ ahc_freeze_scb(struct scb *scb)
         }
 }
 
-void   ahc_platform_set_tags(struct ahc_softc *ahc,
+void   ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
                              struct ahc_devinfo *devinfo, ahc_queue_alg);
 int    ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
                                char channel, int lun, u_int tag,
@@ -832,7 +825,7 @@ irqreturn_t
 void   ahc_platform_flushwork(struct ahc_softc *ahc);
 void   ahc_done(struct ahc_softc*, struct scb*);
 void   ahc_send_async(struct ahc_softc *, char channel,
-                      u_int target, u_int lun, ac_code, void *);
+                      u_int target, u_int lun, ac_code);
 void   ahc_print_path(struct ahc_softc *, struct scb *);
 void   ahc_platform_dump_card_state(struct ahc_softc *ahc);
 

diff --git a/drivers/scsi/aic7xxx/aic7xxx_proc.c b/drivers/scsi/aic7xxx/aic7xxx_proc.c
index 5914b4a..99e5443 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx_proc.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_proc.c
@@ -182,7 +182,6 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
                      u_int our_id, char channel, u_int target_id,
                      u_int target_offset)
 {
-       struct  ahc_linux_target *targ;
        struct  scsi_target *starget;
        struct  ahc_initiator_tinfo *tinfo;
        struct  ahc_tmode_tstate *tstate;
@@ -198,7 +197,6 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
        starget = ahc->platform_data->starget[target_offset];
        if (!starget)
                return;
-       targ = scsi_transport_target_data(starget);
 
        copy_info(info, "\tGoal: ");
        ahc_format_transinfo(info, &tinfo->goal);
@@ -208,7 +206,7 @@ ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
        for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
                struct scsi_device *sdev;
 
-               sdev = targ->sdev[lun];
+               sdev = scsi_device_lookup_by_target(starget, lun);
 
                if (sdev == NULL)
                        continue;
@@ -383,11 +381,11 @@ ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
        }
        copy_info(&info, "\n");
 
-       max_targ = 15;
+       max_targ = 16;
        if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
-               max_targ = 7;
+               max_targ = 8;
 
-       for (i = 0; i <= max_targ; i++) {
+       for (i = 0; i < max_targ; i++) {
                u_int our_id;
                u_int target_id;
                char channel;