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[v1,2/2] scsi: ufs: ufs-exynos: implement override_cqe_ocs

Message ID 7842191d46ebfc11a3fdf4caac81d31b36d3252c.1724222619.git.kwmad.kim@samsung.com
State Superseded
Headers show
Series scsi: ufs: introduce a callback to override OCS value | expand

Commit Message

Kiwoong Kim Aug. 21, 2024, 6:44 a.m. UTC 
Exynos host reports OCS_ABORT when a command is nullifed
or cleaned up with MCQ enabled. I think the command in those
situations should be issued again, rather than fail, because
when some conditions that caused the nullification or cleaning up
disppears after recovery, the command could be processed.

Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
---
 drivers/ufs/host/ufs-exynos.c | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index 16ad352..4ed06fa 100644
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -1376,6 +1376,14 @@  static void exynos_ufs_fmp_resume(struct ufs_hba *hba)
 
 #endif /* !CONFIG_SCSI_UFS_CRYPTO */
 
+static enum utp_ocs exynos_ufs_override_cqe_ocs(struct ufs_hba *hba,
+						enum utp_ocs ocs)
+{
+	if (ocs == OCS_ABORTED)
+		ocs = OCS_INVALID_COMMAND_STATUS;
+	return ocs;
+}
+
 static int exynos_ufs_init(struct ufs_hba *hba)
 {
 	struct device *dev = hba->dev;
@@ -1926,6 +1934,7 @@  static const struct ufs_hba_variant_ops ufs_hba_exynos_ops = {
 	.suspend			= exynos_ufs_suspend,
 	.resume				= exynos_ufs_resume,
 	.fill_crypto_prdt		= exynos_ufs_fmp_fill_prdt,
+	.override_cqe_ocs		= exynos_ufs_override_cqe_ocs,
 };
 
 static struct ufs_hba_variant_ops ufs_hba_exynosauto_vh_ops = {