From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomas Henzl Subject: Re: [PATCH 03/10] mpt3sas: Reduce memory footprints in kdump kernel Date: Wed, 11 Oct 2017 17:33:37 +0200 Message-ID: References: <1507641083-20207-1-git-send-email-Sreekanth.Reddy@broadcom.com> <1507641083-20207-4-git-send-email-Sreekanth.Reddy@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1507641083-20207-4-git-send-email-Sreekanth.Reddy@broadcom.com> Content-Language: en-MW Sender: linux-kernel-owner@vger.kernel.org To: Sreekanth Reddy , linux-scsi@vger.kernel.org, hch@infradead.org Cc: martin.petersen@oracle.com, JBottomley@Parallels.com, Sathya.Prakash@broadcom.com, linux-kernel@vger.kernel.org List-Id: linux-scsi@vger.kernel.org On 10/10/2017 03:11 PM, Sreekanth Reddy wrote: > To reduce the memory footprints of the driver in kdump kernel, > we have made below driver setting when system boots in to kdump kernel, > > 1. Used 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. > > Signed-off-by: Sreekanth Reddy I think that preferred is (though not much used yet) instead of 'reset_devices' to use a 'is_kdump_kernel()' function. Signed-off-by: Tomas Henzl