openwrt/target/linux/qualcommax/patches-6.1/0132-mmc-core-disable-TRIM-on-Micron-MTFC4GACAJCN-1M.patch
Robert Marko f02f6aaa8d
ipq807x: rename target to qualcommax
Currently, ipq807x only covers Qualcomm IPQ807x SoC-s.
However, Qualcomm also has IPQ60xx and IPQ50xx SoC-s under the AX WiSoC-s
and they share a lot of stuff with IPQ807x, especially IPQ60xx so to avoid
duplicating kernel patches and everything lets make a common target with
per SoC subtargets.

Start doing that by renaming ipq807x to qualcommax so that dependencies
on ipq807x target can be updated.

Signed-off-by: Robert Marko <robimarko@gmail.com>
2023-06-16 11:11:08 +02:00

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From f5aaf6669bd4f1f0218dd7fd5dc90941267ad860 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Tue, 30 May 2023 23:26:30 +0200
Subject: [PATCH] mmc: core: disable TRIM on Micron MTFC4GACAJCN-1M
It seems that Micron MTFC4GACAJCN-1M despite advertising TRIM support does
not work when the core is trying to use REQ_OP_WRITE_ZEROES.
We are seeing the following errors in OpenWrt under 6.1 on Qnap Qhora 301W
that we did not previously have and tracked it down to REQ_OP_WRITE_ZEROES:
[ 18.085950] I/O error, dev loop0, sector 596 op 0x9:(WRITE_ZEROES) flags 0x800 phys_seg 0 prio class 2
Disabling TRIM makes the error go away, so lets add a quirk for this eMMC
to disable TRIM.
Signed-off-by: Robert Marko <robimarko@gmail.com>
---
drivers/mmc/core/quirks.h | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -101,6 +101,13 @@ static const struct mmc_fixup __maybe_un
MMC_QUIRK_TRIM_BROKEN),
/*
+ * Micron MTFC4GACAJCN-1M advertises TRIM but it does not seems to
+ * support being used to offload WRITE_ZEROES.
+ */
+ MMC_FIXUP("Q2J54A", CID_MANFID_MICRON, 0x014e, add_quirk_mmc,
+ MMC_QUIRK_TRIM_BROKEN),
+
+ /*
* Some SD cards reports discard support while they don't
*/
MMC_FIXUP(CID_NAME_ANY, CID_MANFID_SANDISK_SD, 0x5344, add_quirk_sd,