[PATCH 1/2] libata: add horkage flag to disable issuance of queued TRIM commands

[Marc Carino <marc.ceeeee@gmail.com>]

Certain drives cannot handle queued TRIM commands properly, even though
support is indicated in the IDENTIFY DEVICE buffer. This patch allows
for disabling of the commands for the affected drives.

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
---
 include/linux/libata.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 0e23c26..59f8f97 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -418,6 +418,8 @@ enum {
 	ATA_HORKAGE_DUMP_ID	= (1 << 16),	/* dump IDENTIFY data */
 	ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17),	/* Set max sects to 65535 */
 	ATA_HORKAGE_ATAPI_DMADIR = (1 << 18),	/* device requires dmadir */
+	ATA_HORKAGE_BROKEN_QUEUED_TRIM = (1 << 19), /* device doesn't handle
+						       queued TRIMs correctly */
 
 	 /* DMA mask for user DMA control: User visible values; DO NOT
 	    renumber */
-- 
1.8.1.3