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-rw-r--r--drivers/scsi/aacraid/aachba.c36
-rw-r--r--drivers/scsi/aacraid/aacraid.h2
-rw-r--r--drivers/scsi/aacraid/commsup.c4
3 files changed, 30 insertions, 12 deletions
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index cef764eba307..43d6aff460d2 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -144,6 +144,7 @@ static char *aac_get_status_string(u32 status);
*/
static int nondasd = -1;
+static int aac_cache = 0;
static int dacmode = -1;
int aac_commit = -1;
@@ -152,6 +153,8 @@ int aif_timeout = 120;
module_param(nondasd, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
+module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n\tbit 0 - Disable FUA in WRITE SCSI commands\n\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n\tbit 2 - Disable only if Battery not protecting Cache");
module_param(dacmode, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
@@ -1013,7 +1016,8 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
writecmd->count = cpu_to_le32(count<<9);
writecmd->cid = cpu_to_le16(scmd_id(cmd));
- writecmd->flags = fua ?
+ writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
+ (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
cpu_to_le16(IO_TYPE_WRITE);
writecmd->bpTotal = 0;
@@ -1325,11 +1329,11 @@ int aac_get_adapter_info(struct aac_dev* dev)
}
}
+ dev->cache_protected = 0;
dev->nondasd_support = 0;
dev->raid_scsi_mode = 0;
- if(dev->adapter_info.options & AAC_OPT_NONDASD){
+ if(dev->adapter_info.options & AAC_OPT_NONDASD)
dev->nondasd_support = 1;
- }
/*
* If the firmware supports ROMB RAID/SCSI mode and we are currently
@@ -1351,10 +1355,9 @@ int aac_get_adapter_info(struct aac_dev* dev)
printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
dev->name, dev->id);
- if(nondasd != -1) {
+ if (nondasd != -1)
dev->nondasd_support = (nondasd!=0);
- }
- if(dev->nondasd_support != 0){
+ if(dev->nondasd_support != 0) {
printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
}
@@ -2106,7 +2109,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
mode_buf[2] = 0; /* Device-specific param,
bit 8: 0/1 = write enabled/protected
bit 4: 0/1 = FUA enabled */
- if (dev->raw_io_interface)
+ if (dev->raw_io_interface && ((aac_cache & 5) != 1))
mode_buf[2] = 0x10;
mode_buf[3] = 0; /* Block descriptor length */
if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
@@ -2114,7 +2117,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
mode_buf[0] = 6;
mode_buf[4] = 8;
mode_buf[5] = 1;
- mode_buf[6] = 0x04; /* WCE */
+ mode_buf[6] = ((aac_cache & 6) == 2)
+ ? 0 : 0x04; /* WCE */
mode_buf_length = 7;
if (mode_buf_length > scsicmd->cmnd[4])
mode_buf_length = scsicmd->cmnd[4];
@@ -2137,7 +2141,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
mode_buf[3] = 0; /* Device-specific param,
bit 8: 0/1 = write enabled/protected
bit 4: 0/1 = FUA enabled */
- if (dev->raw_io_interface)
+ if (dev->raw_io_interface && ((aac_cache & 5) != 1))
mode_buf[3] = 0x10;
mode_buf[4] = 0; /* reserved */
mode_buf[5] = 0; /* reserved */
@@ -2148,7 +2152,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
mode_buf[1] = 9;
mode_buf[8] = 8;
mode_buf[9] = 1;
- mode_buf[10] = 0x04; /* WCE */
+ mode_buf[10] = ((aac_cache & 6) == 2)
+ ? 0 : 0x04; /* WCE */
mode_buf_length = 11;
if (mode_buf_length > scsicmd->cmnd[8])
mode_buf_length = scsicmd->cmnd[8];
@@ -2224,9 +2229,16 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
return aac_write(scsicmd);
case SYNCHRONIZE_CACHE:
+ if (((aac_cache & 6) == 6) && dev->cache_protected) {
+ scsicmd->result = DID_OK << 16 |
+ COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
+ scsicmd->scsi_done(scsicmd);
+ return 0;
+ }
/* Issue FIB to tell Firmware to flush it's cache */
- return aac_synchronize(scsicmd);
-
+ if ((aac_cache & 6) != 2)
+ return aac_synchronize(scsicmd);
+ /* FALLTHRU */
default:
/*
* Unhandled commands
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 734623af9c45..7bb3d9fde713 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1016,6 +1016,7 @@ struct aac_dev
* lets break them out so we don't have to do an AND to check them
*/
u8 nondasd_support;
+ u8 cache_protected;
u8 dac_support;
u8 raid_scsi_mode;
u8 comm_interface;
@@ -1770,6 +1771,7 @@ extern struct aac_common aac_config;
#define AifEnConfigChange 3 /* Adapter configuration change */
#define AifEnContainerChange 4 /* Container configuration change */
#define AifEnDeviceFailure 5 /* SCSI device failed */
+#define AifEnBatteryEvent 14 /* Change in Battery State */
#define AifEnAddContainer 15 /* A new array was created */
#define AifEnDeleteContainer 16 /* A container was deleted */
#define AifEnExpEvent 23 /* Firmware Event Log */
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 53d415e812ee..81cdac166d4b 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -849,6 +849,10 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
case AifCmdEventNotify:
switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
+ case AifEnBatteryEvent:
+ dev->cache_protected =
+ (((__le32 *)aifcmd->data)[1] == cpu_to_le32(3));
+ break;
/*
* Add an Array.
*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 11:02:38 +0100