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Implement FSACTL_LNX_GET_FEATURES and FSACTL_GET_FEATURES ioctls. RAID

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tools (e.g. arcconf) need this to be able to create arrays larger than 2TB.

Submitted by: Adaptec, via driver build 15317
This commit is contained in:
Ed Maste 2008-03-28 19:07:25 +00:00
parent a6b3965743
commit 6d307336b3
2 changed files with 64 additions and 0 deletions
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44
sys/dev/aac/aac.c
View File

@ -226,6 +226,7 @@ static int aac_return_aif(struct aac_softc *sc,
struct aac_fib_context *ctx, caddr_t uptr);
static int aac_query_disk(struct aac_softc *sc, caddr_t uptr);
static int aac_get_pci_info(struct aac_softc *sc, caddr_t uptr);
static int aac_supported_features(struct aac_softc *sc, caddr_t uptr);
static void aac_ioctl_event(struct aac_softc *sc,
struct aac_event *event, void *arg);
static struct aac_mntinforesp *
@ -2979,6 +2980,12 @@ aac_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td)
fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_GET_PCI_INFO");
error = aac_get_pci_info(sc, arg);
break;
case FSACTL_GET_FEATURES:
arg = *(caddr_t*)arg;
case FSACTL_LNX_GET_FEATURES:
fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "FSACTL_GET_FEATURES");
error = aac_supported_features(sc, arg);
break;
default:
fwprintf(sc, HBA_FLAGS_DBG_IOCTL_COMMANDS_B, "unsupported cmd 0x%lx\n", cmd);
error = EINVAL;
@ -3479,6 +3486,43 @@ aac_get_pci_info(struct aac_softc *sc, caddr_t uptr)
return (error);
}
static int
aac_supported_features(struct aac_softc *sc, caddr_t uptr)
{
struct aac_features f;
int error;
fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
if ((error = copyin(uptr, &f, sizeof (f))) != 0)
return (error);
/*
* When the management driver receives FSACTL_GET_FEATURES ioctl with
* ALL zero in the featuresState, the driver will return the current
* state of all the supported features, the data field will not be
* valid.
* When the management driver receives FSACTL_GET_FEATURES ioctl with
* a specific bit set in the featuresState, the driver will return the
* current state of this specific feature and whatever data that are
* associated with the feature in the data field or perform whatever
* action needed indicates in the data field.
*/
if (f.feat.fValue == 0) {
f.feat.fBits.largeLBA =
(sc->flags & AAC_FLAGS_LBA_64BIT) ? 1 : 0;
/* TODO: In the future, add other features state here as well */
} else {
if (f.feat.fBits.largeLBA)
f.feat.fBits.largeLBA =
(sc->flags & AAC_FLAGS_LBA_64BIT) ? 1 : 0;
/* TODO: Add other features state and data in the future */
}
error = copyout(&f, uptr, sizeof (f));
return (error);
}
/*
* Give the userland some information about the container. The AAC arch
* expects the driver to be a SCSI passthrough type driver, so it expects

20
sys/sys/aac_ioctl.h
View File

@ -97,6 +97,8 @@ union aac_statrequest {
METHOD_NEITHER, FILE_ANY_ACCESS)
#define FSACTL_LNX_SEND_LARGE_FIB CTL_CODE(FILE_DEVICE_CONTROLLER, 2138, \
METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSACTL_LNX_GET_FEATURES CTL_CODE(FILE_DEVICE_CONTROLLER, 2139, \
METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Why these don't follow the previous convention, I don't know */
#define FSACTL_LNX_NULL_IO_TEST 0x43
@ -134,6 +136,7 @@ union aac_statrequest {
#define FSACTL_FORCE_DELETE_DISK _IO('8', 72)
#define FSACTL_AIF_THREAD _IO('8', 79)
#define FSACTL_SEND_LARGE_FIB _IO('8', 90)
#define FSACTL_GET_FEATURES _IO('8', 91)
#define FSACTL_NULL_IO_TEST _IO('8', 67)
#define FSACTL_SIM_IO_TEST _IO('8', 83)
@ -182,4 +185,21 @@ struct aac_query_disk {
char diskDeviceName[10];
u_int32_t UnMapped;
};
/* Features, asked from the tools to know if the driver
* supports drives >2TB
*/
typedef union {
struct {
u_int32_t largeLBA : 1; /* disk support greater 2TB */
u_int32_t fReserved : 31;
} fBits;
u_int32_t fValue;
} featuresState;
struct aac_features {
featuresState feat;
u_int32_t data[31];
u_int32_t reserved[32];
} __packed;
#endif