Yoshihiro Shimoda d74ffae8b8 usb-storage: Add a limitation for blk_queue_max_hw_sectors() ... This patch fixes an issue that the following error happens on swiotlb environment: xhci-hcd ee000000.usb: swiotlb buffer is full (sz: 524288 bytes), total 32768 (slots), used 1338 (slots) On the kernel v5.1, block settings of a usb-storage with SuperSpeed were the following so that the block layer will allocate buffers up to 64 KiB, and then the issue didn't happen. max_segment_size = 65536 max_hw_sectors_kb = 1024 After the commit 09324d32d2 ("block: force an unlimited segment size on queues with a virt boundary") is applied, the block settings are the following. So, the block layer will allocate buffers up to 1024 KiB, and then the issue happens: max_segment_size = 4294967295 max_hw_sectors_kb = 1024 To fix the issue, the usb-storage driver checks the maximum size of a mapping for the device and then adjusts the max_hw_sectors_kb if required. After this patch is applied, the block settings will be the following, and then the issue doesn't happen. max_segment_size = 4294967295 max_hw_sectors_kb = 256 Fixes: 09324d32d2 ("block: force an unlimited segment size on queues with a virt boundary") Cc: stable <stable@vger.kernel.org> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/1563793105-20597-1-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-07-25 10:40:02 +02:00
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alauda.c
cypress_atacb.c
datafab.c
debug.c
debug.h
ene_ub6250.c	USB: ene_usb6250: add missing indentation	2018-11-23 16:13:14 +01:00
freecom.c
initializers.c
initializers.h
isd200.c	USB: STORAGE: ISD200 Fixed coding style issue "space required in for loop"	2018-09-20 15:10:29 +02:00
jumpshot.c
karma.c	USB: storage: karma: add whitespace after declarations	2019-01-22 09:08:17 +01:00
Kconfig	USB: add missing SPDX lines to Kconfig and Makefiles	2019-01-22 09:08:17 +01:00
Makefile	treewide: prefix header search paths with $(srctree)/	2019-05-18 11:49:57 +09:00
onetouch.c
option_ms.c
option_ms.h
protocol.c
protocol.h
realtek_cr.c	USB: core: Fix bug caused by duplicate interface PM usage counter	2019-04-19 21:15:13 +02:00
scsiglue.c	usb-storage: Add a limitation for blk_queue_max_hw_sectors()	2019-07-25 10:40:02 +02:00
scsiglue.h
sddr09.c
sddr55.c
shuttle_usbat.c
sierra_ms.c	usb: sierra: fix a missing check of device_create_file	2019-03-26 16:42:52 +09:00
sierra_ms.h
transport.c
transport.h
uas-detect.h
uas.c	UAS: fix alignment of scatter/gather segments	2019-04-30 17:51:42 +02:00
unusual_alauda.h
unusual_cypress.h
unusual_datafab.h
unusual_devs.h	USB: storage: add quirk for SMI SM3350	2019-01-07 17:23:30 +01:00
unusual_ene_ub6250.h
unusual_freecom.h
unusual_isd200.h
unusual_jumpshot.h
unusual_karma.h
unusual_onetouch.h
unusual_realtek.h	USB: usb-storage: Add new ID to ums-realtek	2019-06-05 11:52:42 +02:00
unusual_sddr09.h
unusual_sddr55.h
unusual_uas.h
unusual_usbat.h
usb.c
usb.h
usual-tables.c