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-rw-r--r--include/linux/libata.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index f23454762717..fc03efa64ffe 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -231,6 +231,7 @@ enum {
ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity
* led */
ATA_FLAG_NO_DIPM = (1 << 23), /* host not happy with DIPM */
+ ATA_FLAG_LOWTAG = (1 << 24), /* host wants lowest available tag */
/* bits 24:31 of ap->flags are reserved for LLD specific flags */
@@ -422,6 +423,7 @@ enum {
ATA_HORKAGE_NO_NCQ_TRIM = (1 << 19), /* don't use queued TRIM */
ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */
ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */
+ ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */
/* DMA mask for user DMA control: User visible values; DO NOT
renumber */
@@ -1338,6 +1340,12 @@ extern const struct ata_port_operations ata_base_port_ops;
extern const struct ata_port_operations sata_port_ops;
extern struct device_attribute *ata_common_sdev_attrs[];
+/*
+ * All sht initializers (BASE, PIO, BMDMA, NCQ) must be instantiated
+ * by the edge drivers. Because the 'module' field of sht must be the
+ * edge driver's module reference, otherwise the driver can be unloaded
+ * even if the scsi_device is being accessed.
+ */
#define ATA_BASE_SHT(drv_name) \
.module = THIS_MODULE, \
.name = drv_name, \