From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Dennis Dalessandro <dennis.dalessandro@intel.com>,
Mike Marciniszyn <mike.marciniszyn@intel.com>,
Roland Dreier <roland@purestorage.com>
Subject: [PATCH 3.4 19/25] IB/qib: Add missing serdes init sequence
Date: Thu, 20 Feb 2014 15:51:35 -0800 [thread overview]
Message-ID: <20140220234843.021311718@linuxfoundation.org> (raw)
In-Reply-To: <20140220234842.483343851@linuxfoundation.org>
3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mike Marciniszyn <mike.marciniszyn@intel.com>
commit 2f75e12c4457a9b3d042c0a0d748fa198dc2ffaf upstream.
Research has shown that commit a77fcf895046 ("IB/qib: Use a single
txselect module parameter for serdes tuning") missed a key serdes init
sequence.
This patch add that sequence.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/infiniband/hw/qib/qib_iba7322.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -2279,6 +2279,11 @@ static int qib_7322_bringup_serdes(struc
qib_write_kreg_port(ppd, krp_ibcctrl_a, ppd->cpspec->ibcctrl_a);
qib_write_kreg(dd, kr_scratch, 0ULL);
+ /* ensure previous Tx parameters are not still forced */
+ qib_write_kreg_port(ppd, krp_tx_deemph_override,
+ SYM_MASK(IBSD_TX_DEEMPHASIS_OVERRIDE_0,
+ reset_tx_deemphasis_override));
+
if (qib_compat_ddr_negotiate) {
ppd->cpspec->ibdeltainprog = 1;
ppd->cpspec->ibsymsnap = read_7322_creg32_port(ppd,
next prev parent reply other threads:[~2014-02-21 1:09 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-20 23:51 [PATCH 3.4 00/25] 3.4.82-stable review Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 01/25] xen-blkfront: handle backend CLOSED without CLOSING Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 02/25] fs/file.c:fdtable: avoid triggering OOMs from alloc_fdmem Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 03/25] mac80211: fix fragmentation code, particularly for encryption Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 04/25] s390/dump: Fix dump memory detection Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 05/25] s390: fix kernel crash due to linkage stack instructions Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 06/25] spi: Fix crash with double message finalisation on error handling Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 07/25] raw: test against runtime value of max_raw_minors Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 08/25] lockd: send correct lock when granting a delayed lock Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 09/25] tty: n_gsm: Fix for modems with brk in modem status control Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 10/25] staging:iio:ad799x fix error_free_irq which was freeing an irq that may not have been requested Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 12/25] USB: ftdi_sio: add Tagsys RFID Reader IDs Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 13/25] usb-storage: add unusual-devs entry for BlackBerry 9000 Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 14/25] usb-storage: restrict bcdDevice range for Super Top in Cypress ATACB Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 15/25] usb-storage: enable multi-LUN scanning when needed Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 16/25] usb: option: blacklist ZTE MF667 net interface Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 17/25] Modpost: fixed USB alias generation for ranges including 0x9 and 0xA Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 18/25] block: add cond_resched() to potentially long running ioctl discard loop Greg Kroah-Hartman
2014-02-20 23:51 ` Greg Kroah-Hartman [this message]
2014-02-20 23:51 ` [PATCH 3.4 20/25] KVM: return an error code in kvm_vm_ioctl_register_coalesced_mmio() Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 21/25] md/raid5: Fix CPU hotplug callback registration Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 22/25] time: Fix overflow when HZ is smaller than 60 Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 23/25] power: max17040: Fix NULL pointer dereference when there is no platform_data Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 24/25] ring-buffer: Fix first commit on sub-buffer having non-zero delta Greg Kroah-Hartman
2014-02-20 23:51 ` [PATCH 3.4 25/25] genirq: Add missing irq_to_desc export for CONFIG_SPARSE_IRQ=n Greg Kroah-Hartman
2014-02-21 5:05 ` [PATCH 3.4 00/25] 3.4.82-stable review Guenter Roeck
2014-02-21 23:40 ` Shuah Khan
2014-02-22 20:45 ` Greg KH
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