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authorXingui Yang <yangxingui@huawei.com>2021-03-12 11:24:36 +0100
committerJens Axboe <axboe@kernel.dk>2021-03-31 16:25:15 +0200
commit234e6d2c18f5b080cde874483c4c361f3ae7cffe (patch)
tree766fda2214c171419eefbac79030cdd3ba3c402d /drivers/ata/ahci.h
parentata: libahci_platform: fix IRQ check (diff)
downloadlinux-234e6d2c18f5b080cde874483c4c361f3ae7cffe.tar.xz
linux-234e6d2c18f5b080cde874483c4c361f3ae7cffe.zip
ata: ahci: Disable SXS for Hisilicon Kunpeng920
On Hisilicon Kunpeng920, ESP is set to 1 by default for all ports of SATA controller. In some scenarios, some ports are not external SATA ports, and it cause disks connected to these ports to be identified as removable disks. So disable the SXS capability on the software side to prevent users from mistakenly considering non-removable disks as removable disks and performing related operations. Signed-off-by: Xingui Yang <yangxingui@huawei.com> Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/1615544676-61926-1-git-send-email-luojiaxing@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ata/ahci.h')
-rw-r--r--drivers/ata/ahci.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 98b8baa47dc5..d1f284f0c83d 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -242,6 +242,7 @@ enum {
suspend/resume */
AHCI_HFLAG_IGN_NOTSUPP_POWER_ON = (1 << 27), /* ignore -EOPNOTSUPP
from phy_power_on() */
+ AHCI_HFLAG_NO_SXS = (1 << 28), /* SXS not supported */
/* ap->flags bits */