AuxXxilium/linux_dsm_epyc7002
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311950f8b8
linux_dsm_epyc7002/drivers/message/fusion
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Christoph Hellwig 311950f8b8 scsi: mptfusion: Don't use GFP_ATOMIC for larger DMA allocations 
The mpt fusion driver still uses the legacy PCI DMA API which hardcodes
atomic allocations.  This caused the driver to fail to load on some powerpc
VMs with incoherent DMA and small memory sizes.  Switch to use the modern
DMA API and sleeping allocations for large allocations instead.  This is
not a full cleanup of the PCI DMA API usage yet, but just enough to fix the
regression caused by reducing the default atomic pool size.

Link: https://lore.kernel.org/r/20200624165724.1818496-1-hch@lst.de
Fixes: 3ee06a6d53 ("dma-pool: fix too large DMA pools on medium memory size systems")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-26 22:51:53 -04:00
..
lsi scsi: message: fusion: fix a few trivial spelling mistakes 2018-09-11 21:18:06 -04:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mptbase.c scsi: mptfusion: Don't use GFP_ATOMIC for larger DMA allocations 2020-06-26 22:51:53 -04:00
mptbase.h fusion: remove dead MTRR code 2015-06-13 08:44:14 -07:00
mptctl.c scsi: mptfusion: Fix double fetch bug in ioctl 2020-01-15 23:05:52 -05:00
mptctl.h [SCSI] mpt fusion : Updated copyright statment with 2008 included 2008-06-05 09:27:17 -05:00
mptdebug.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mptfc.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
mptlan.c netdev: pass the stuck queue to the timeout handler 2019-12-12 21:38:57 -08:00
mptlan.h scsi: fusion: fix if-statement empty body warning 2020-03-11 23:07:57 -04:00
mptsas.c scsi: mptfusion: fix indentation issues 2019-03-19 17:17:08 -04:00
mptsas.h scsi: message: fusion: Replace zero-length array with flexible-array member 2020-03-26 22:40:47 -04:00
mptscsih.c scsi: mptscsih: Fix read sense data size 2020-06-24 00:23:17 -04:00
mptscsih.h scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
mptspi.c scsi: mptfusion: remove set, but not used, variables 2019-03-19 17:19:36 -04:00