Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / drivers / scsi / aic7xxx / aic7xxx_osm.c

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 2c80167..b3d35b3 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -353,7 +353,6 @@ MODULE_PARM_DESC(aic7xxx,
 "                              periodically to prevent tag starvation.\n"
 "                              This may be required by some older disk\n"
 "                              drives or RAID arrays.\n"
-"      reverse_scan            Sort PCI devices highest Bus/Slot to lowest\n"
 "      tag_info:<tag_str>      Set per-target tag depth\n"
 "      global_tag_depth:<int>  Global tag depth for every target\n"
 "                              on every bus\n"
@@ -886,7 +885,7 @@ ahc_linux_setup_tag_info_global(char *p)
        tags = simple_strtoul(p + 1, NULL, 0) & 0xff;
        printf("Setting Global Tags= %d\n", tags);
 
-       for (i = 0; i < NUM_ELEMENTS(aic7xxx_tag_info); i++) {
+       for (i = 0; i < ARRAY_SIZE(aic7xxx_tag_info); i++) {
                for (j = 0; j < AHC_NUM_TARGETS; j++) {
                        aic7xxx_tag_info[i].tag_commands[j] = tags;
                }
@@ -898,7 +897,7 @@ ahc_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value)
 {
 
        if ((instance >= 0) && (targ >= 0)
-        && (instance < NUM_ELEMENTS(aic7xxx_tag_info))
+        && (instance < ARRAY_SIZE(aic7xxx_tag_info))
         && (targ < AHC_NUM_TARGETS)) {
                aic7xxx_tag_info[instance].tag_commands[targ] = value & 0xff;
                if (bootverbose)
@@ -1020,7 +1019,7 @@ aic7xxx_setup(char *s)
        end = strchr(s, '\0');
 
        /*
-        * XXX ia64 gcc isn't smart enough to know that NUM_ELEMENTS
+        * XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE
         * will never be 0 in this case.
         */
        n = 0;
@@ -1028,13 +1027,13 @@ aic7xxx_setup(char *s)
        while ((p = strsep(&s, ",.")) != NULL) {
                if (*p == '\0')
                        continue;
-               for (i = 0; i < NUM_ELEMENTS(options); i++) {
+               for (i = 0; i < ARRAY_SIZE(options); i++) {
 
                        n = strlen(options[i].name);
                        if (strncmp(options[i].name, p, n) == 0)
                                break;
                }
-               if (i == NUM_ELEMENTS(options))
+               if (i == ARRAY_SIZE(options))
                        continue;
 
                if (strncmp(p, "global_tag_depth", n) == 0) {
@@ -1360,7 +1359,7 @@ ahc_linux_user_tagdepth(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
 
        tags = 0;
        if ((ahc->user_discenable & devinfo->target_mask) != 0) {
-               if (ahc->unit >= NUM_ELEMENTS(aic7xxx_tag_info)) {
+               if (ahc->unit >= ARRAY_SIZE(aic7xxx_tag_info)) {
                        if (warned_user == 0) {
 
                                printf(KERN_WARNING
@@ -2336,7 +2335,7 @@ done:
        if (paused)
                ahc_unpause(ahc);
        if (wait) {
-               DECLARE_COMPLETION(done);
+               DECLARE_COMPLETION_ONSTACK(done);
 
                ahc->platform_data->eh_done = &done;
                ahc_unlock(ahc, &flags);
@@ -2537,6 +2536,35 @@ static void ahc_linux_set_iu(struct scsi_target *starget, int iu)
 }
 #endif
 
+static void ahc_linux_get_signalling(struct Scsi_Host *shost)
+{
+       struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
+       unsigned long flags;
+       u8 mode;
+
+       if (!(ahc->features & AHC_ULTRA2)) {
+               /* non-LVD chipset, may not have SBLKCTL reg */
+               spi_signalling(shost) = 
+                       ahc->features & AHC_HVD ?
+                       SPI_SIGNAL_HVD :
+                       SPI_SIGNAL_SE;
+               return;
+       }
+
+       ahc_lock(ahc, &flags);
+       ahc_pause(ahc);
+       mode = ahc_inb(ahc, SBLKCTL);
+       ahc_unpause(ahc);
+       ahc_unlock(ahc, &flags);
+
+       if (mode & ENAB40)
+               spi_signalling(shost) = SPI_SIGNAL_LVD;
+       else if (mode & ENAB20)
+               spi_signalling(shost) = SPI_SIGNAL_SE;
+       else
+               spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
+}
+
 static struct spi_function_template ahc_linux_transport_functions = {
        .set_offset     = ahc_linux_set_offset,
        .show_offset    = 1,
@@ -2552,6 +2580,7 @@ static struct spi_function_template ahc_linux_transport_functions = {
        .set_qas        = ahc_linux_set_qas,
        .show_qas       = 1,
 #endif
+       .get_signalling = ahc_linux_get_signalling,
 };