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scsi: Enable FUA bit in WRITE10 commands

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Enable the Force Unit Access (FUA) bit in SCSI WRITE10 commands to
ensure writes bypass the device's volatile cache and go directly to
non-volatile storage. This provides write-through behavior that prevents
data loss during board resets.

Reviewed-by: Varadarajan Narayanan <varadarajan.narayanan@oss.qualcomm.com>
Signed-off-by: Aswin Murugan <aswin.murugan@oss.qualcomm.com>
Signed-off-by: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Aswin Murugan
2026-04-16 14:40:47 +05:30
committed by Tom Rini
parent 34a44dad74
commit 4b42c59a34
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/scsi.c
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@@ -107,7 +107,7 @@ static void scsi_setup_write_ext(struct scsi_cmd *pccb, lbaint_t start,
lbaint_t blocks)
{
pccb->cmd[0] = SCSI_WRITE10;
pccb->cmd[1] = 0;
pccb->cmd[1] = 0x08; /* Set FUA bit to bypass write cache */
pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;