[SCSI] aacraid: fix big endian issues

Big endian systems issues discovered in the aacraid driver. Somewhat
reverses a patch from November 7th of last year that removed swap
operations because they formerly were being assigned to an u8 array
when they should have been assigned to an le32 array.

This patch is largely inert for any little endian processor
architecture. It resolves a bug in delivering the BlinkLED AIF event
to registered applications when the adapter or associated hardware was
reset due to ill health. A rare corner case occurrence, also largely
unnoticed by any as it was a new (untested!) feature.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 94577c0..3cddcc0 100644 (file)
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1325,10 +1325,9 @@ int aac_get_adapter_info(struct aac_dev* dev)
                          (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
                          dev->supplement_adapter_info.VpdInfo.Tsid);
                }
-               if (!aac_check_reset ||
-                   ((aac_check_reset != 1) &&
-                    (dev->supplement_adapter_info.SupportedOptions2 &
-                     cpu_to_le32(AAC_OPTION_IGNORE_RESET)))) {
+               if (!aac_check_reset || ((aac_check_reset != 1) &&
+                 (dev->supplement_adapter_info.SupportedOptions2 &
+                 AAC_OPTION_IGNORE_RESET))) {
                        printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
                          dev->name, dev->id);
                }

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 6d4e24c..07def72 100644 (file)
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -869,9 +869,9 @@ struct aac_supplement_adapter_info
        __le32  SupportedOptions2;
        __le32  ReservedGrowth[1];
 };
-#define AAC_FEATURE_FALCON     0x00000010
-#define AAC_OPTION_MU_RESET    0x00000001
-#define AAC_OPTION_IGNORE_RESET        0x00000002
+#define AAC_FEATURE_FALCON     cpu_to_le32(0x00000010)
+#define AAC_OPTION_MU_RESET    cpu_to_le32(0x00000001)
+#define AAC_OPTION_IGNORE_RESET        cpu_to_le32(0x00000002)
 #define AAC_SIS_VERSION_V3     3
 #define AAC_SIS_SLOT_UNKNOWN   0xFF
 

diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 8736813..89cc8b7 100644 (file)
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -301,10 +301,10 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
        if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
                0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
                        (status[0] == 0x00000001)) {
-               if (status[1] & AAC_OPT_NEW_COMM_64)
+               if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
                        dev->raw_io_64 = 1;
                if (dev->a_ops.adapter_comm &&
-                   (status[1] & AAC_OPT_NEW_COMM))
+                   (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)))
                        dev->comm_interface = AAC_COMM_MESSAGE;
                if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
                    (status[2] > dev->base_size)) {

diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 81cdac1..e82d89c 100644 (file)
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1343,11 +1343,11 @@ int aac_check_health(struct aac_dev * aac)
                        fib->data = hw_fib->data;
                        aif = (struct aac_aifcmd *)hw_fib->data;
                        aif->command = cpu_to_le32(AifCmdEventNotify);
-                       aif->seqnum = cpu_to_le32(0xFFFFFFFF);
-                       aif->data[0] = AifEnExpEvent;
-                       aif->data[1] = AifExeFirmwarePanic;
-                       aif->data[2] = AifHighPriority;
-                       aif->data[3] = BlinkLED;
+                       aif->seqnum = cpu_to_le32(0xFFFFFFFF);
+                       ((__le32 *)aif->data)[0] = cpu_to_le32(AifEnExpEvent);
+                       ((__le32 *)aif->data)[1] = cpu_to_le32(AifExeFirmwarePanic);
+                       ((__le32 *)aif->data)[2] = cpu_to_le32(AifHighPriority);
+                       ((__le32 *)aif->data)[3] = cpu_to_le32(BlinkLED);
 
                        /*
                         * Put the FIB onto the
@@ -1377,10 +1377,9 @@ int aac_check_health(struct aac_dev * aac)
 
        printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED);
 
-       if (!aac_check_reset ||
-           ((aac_check_reset != 1) &&
-            (aac->supplement_adapter_info.SupportedOptions2 &
-             cpu_to_le32(AAC_OPTION_IGNORE_RESET))))
+       if (!aac_check_reset || ((aac_check_reset != 1) &&
+               (aac->supplement_adapter_info.SupportedOptions2 &
+                       AAC_OPTION_IGNORE_RESET)))
                goto out;
        host = aac->scsi_host_ptr;
        if (aac->thread->pid != current->pid)

diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index e6bdc93..742e1a8 100644 (file)
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -614,11 +614,11 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
         * support a register, instead of a commanded, reset.
         */
        if ((aac->supplement_adapter_info.SupportedOptions2 &
-            cpu_to_le32(AAC_OPTION_MU_RESET)) &&
-           aac_check_reset &&
-           ((aac_check_reset != 1) ||
-            (aac->supplement_adapter_info.SupportedOptions2 &
-             cpu_to_le32(AAC_OPTION_IGNORE_RESET))))
+          AAC_OPTION_MU_RESET) &&
+         aac_check_reset &&
+         ((aac_check_reset != 1) ||
+          (aac->supplement_adapter_info.SupportedOptions2 &
+           AAC_OPTION_IGNORE_RESET)))
                aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
        return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
 }

diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index 9b83151..a08bbf1 100644 (file)
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -465,7 +465,7 @@ static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
        u32 var;
 
        if (!(dev->supplement_adapter_info.SupportedOptions2 &
-           cpu_to_le32(AAC_OPTION_MU_RESET)) || (bled >= 0) || (bled == -2)) {
+         AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
                if (bled)
                        printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
                                dev->name, dev->id, bled);