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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Slava Kardakov <ojab@ojab.ru>,
	Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>
Subject: [PATCH 4.4 16/20] scsi: mpt3sas: disable ASPM for MPI2 controllers
Date: Mon, 13 Feb 2017 05:05:01 -0800	[thread overview]
Message-ID: <20170213130404.241151665@linuxfoundation.org> (raw)
In-Reply-To: <20170213130403.531813333@linuxfoundation.org>

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: ojab <ojab@ojab.ru>

commit ffdadd68af5a397b8a52289ab39d62e1acb39e63 upstream.

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

Signed-off-by: Slava Kardakov <ojab@ojab.ru>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60644
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/mpt3sas/mpt3sas_scsih.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -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
 
 	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));

  parent reply	other threads:[~2017-02-13 13:05 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-13 13:04 [PATCH 4.4 00/20] 4.4.49-stable review Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 01/20] ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixup Greg Kroah-Hartman
2017-02-13 13:04   ` Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 02/20] selinux: fix off-by-one in setprocattr Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 03/20] Revert "x86/ioapic: Restore IO-APIC irq_chip retrigger callback" Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 04/20] cpumask: use nr_cpumask_bits for parsing functions Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 05/20] hns: avoid stack overflow with CONFIG_KASAN Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 06/20] ARM: 8643/3: arm/ptrace: Preserve previous registers for short regset write Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 07/20] target: Dont BUG_ON during NodeACL dynamic -> explicit conversion Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 08/20] target: Use correct SCSI status during EXTENDED_COPY exception Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 09/20] target: Fix early transport_generic_handle_tmr abort scenario Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 10/20] target: Fix COMPARE_AND_WRITE ref leak for non GOOD status Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 11/20] ARM: 8642/1: LPAE: catch pending imprecise abort on unmask Greg Kroah-Hartman
2017-02-13 13:04   ` Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 12/20] mac80211: Fix adding of mesh vendor IEs Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 13/20] [PATCH] netvsc: Set maximum GSO size in the right place Greg Kroah-Hartman
2017-02-13 13:04 ` [PATCH 4.4 14/20] scsi: zfcp: fix use-after-free by not tracing WKA port open/close on failed send Greg Kroah-Hartman
2017-02-13 13:05 ` [PATCH 4.4 15/20] scsi: aacraid: Fix INTx/MSI-x issue with older controllers Greg Kroah-Hartman
2017-02-13 13:05 ` Greg Kroah-Hartman [this message]
2017-02-13 13:05 ` [PATCH 4.4 17/20] xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend() Greg Kroah-Hartman
2017-02-13 13:05 ` [PATCH 4.4 18/20] ALSA: seq: Fix race at creating a queue Greg Kroah-Hartman
2017-02-13 13:05 ` [PATCH 4.4 19/20] ALSA: seq: Dont handle loop timeout at snd_seq_pool_done() Greg Kroah-Hartman
2017-02-13 13:05 ` [PATCH 4.4 20/20] drm/i915: fix use-after-free in page_flip_completed() Greg Kroah-Hartman
2017-02-13 17:09 ` [PATCH 4.4 00/20] 4.4.49-stable review Shuah Khan
2017-02-13 20:04 ` Guenter Roeck
2017-02-15 11:41 ` Sudip Mukherjee
2017-02-15 16:36   ` Greg Kroah-Hartman

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