]> www.infradead.org Git - users/jedix/linux-maple.git/commit
scsi: mpt3sas: Reduce memory footprint in kdump kernel
authorSreekanth Reddy <sreekanth.reddy@broadcom.com>
Tue, 10 Oct 2017 13:11:16 +0000 (18:41 +0530)
committerJack Vogel <jack.vogel@oracle.com>
Fri, 27 Oct 2017 21:30:54 +0000 (14:30 -0700)
commit92fcc75c935202ee4e090560643d2c0944a5f1ea
tree81599e5ea58c8d65d517fc09bc2e8b0be6b405a5
parentce82346ddcc056a462efc44fee691e86c236b36e
scsi: mpt3sas: Reduce memory footprint in kdump kernel

To reduce the memory footprint of the driver in the kdump kernel, we
apply the following settings when reset_devices is set:

1. Use single MSI-x vector.
2. Disable RDPQ mode.
3. Set sg_table_size to 32 by default.
4) Set SCSI IO Queue depth to 200.

[mkp: fixed commit message]

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Orabug: 26894858
(cherry picked from commit 06f5f976a6ee0f8bbb0dd648415eeac0536fef97)
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Reviewed-by: Dhaval Giani <dhaval.giani@oracle.com>
drivers/scsi/mpt3sas/mpt3sas_base.c
drivers/scsi/mpt3sas/mpt3sas_base.h