1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index d782b1aa913..3bffff5f670 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -178,6 +178,21 @@ struct mtip_work {
 		mtip_workq_sdbfx(w->port, group, w->completed);     \
 	}
 
+#define MTIP_TRIM_TIMEOUT_MS		240000
+#define MTIP_MAX_TRIM_ENTRIES		8
+#define MTIP_MAX_TRIM_ENTRY_LEN 	0xfff8
+
+struct mtip_trim_entry {
+	u32 lba;   /* starting lba of region */
+	u16 rsvd;  /* unused */
+	u16 range; /* # of 512b blocks to trim */
+} __packed;
+
+struct mtip_trim {
+	/* Array of regions to trim */
+	struct mtip_trim_entry entry[MTIP_MAX_TRIM_ENTRIES];
+} __packed;
+
 /* Register Frame Information Structure (FIS), host to device. */
 struct host_to_dev_fis {
 	/*
@@ -473,6 +488,8 @@ struct driver_data {
 
 	struct dentry *dfs_node;
 
+	bool trim_supp; /* flag indicating trim support */
+
 	int numa_node; /* NUMA support */
 
 	char workq_name[32];