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Commit 1c0da0ac authored by ojab's avatar ojab Committed by Greg Kroah-Hartman
Browse files

scsi: mpt3sas: disable ASPM for MPI2 controllers 



commit ffdadd68af5a397b8a52289ab39d62e1acb39e63 upstream.

MPI2 controllers sometimes got lost (i.e. disappear from
/sys/bus/pci/devices) if ASMP is enabled.

Signed-off-by: default avatarSlava Kardakov <ojab@ojab.ru>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60644


Acked-by: default avatarSreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4d6bdf7c

drivers/scsi/mpt3sas/mpt3sas_scsih.c

+3 −0
Original line number Diff line number Diff line
@@ -51,6 +51,7 @@ 
#include <linux/workqueue.h>

#include <linux/delay.h>

#include <linux/pci.h>

#include <linux/pci-aspm.h>

#include <linux/interrupt.h>

#include <linux/aer.h>

#include <linux/raid_class.h>
@@ -8483,6 +8484,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) 


	switch (hba_mpi_version) {

	case MPI2_VERSION:

		pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |

			PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);

		/* Use mpt2sas driver host template for SAS 2.0 HBA's */

		shost = scsi_host_alloc(&mpt2sas_driver_template,

		  sizeof(struct MPT3SAS_ADAPTER));