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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, Feras Daoud <ferasda@mellanox.com>,
	Erez Shitrit <erezsh@mellanox.com>,
	Alex Vesker <valex@mellanox.com>,
	Leon Romanovsky <leon@kernel.org>,
	Doug Ledford <dledford@redhat.com>,
	Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 3.18 17/47] IB/ipoib: Update broadcast object if PKey value was changed in index 0
Date: Fri, 23 Mar 2018 10:55:08 +0100	[thread overview]
Message-ID: <20180323094248.865327702@linuxfoundation.org> (raw)
In-Reply-To: <20180323094248.117679641@linuxfoundation.org>

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

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

From: Feras Daoud <ferasda@mellanox.com>


[ Upstream commit 9a9b8112699d78e7f317019b37f377e90023f3ed ]

Update the broadcast address in the priv->broadcast object when the
Pkey value changes in index 0, otherwise the multicast GID value will
keep the previous value of the PKey, and will not be updated.
This leads to interface state down because the interface will keep the
old PKey value.

For example, in SR-IOV environment, if the PF changes the value of PKey
index 0 for one of the VFs, then the VF receives PKey change event that
triggers heavy flush. This flush calls update_parent_pkey that update the
broadcast object and its relevant members. If in this case the multicast
GID will not be updated, the interface state will be down.

Fixes: c2904141696e ("IPoIB: Fix pkey change flow for virtualization environments")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/ulp/ipoib/ipoib_ib.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -955,6 +955,19 @@ static inline int update_parent_pkey(str
 		 */
 		priv->dev->broadcast[8] = priv->pkey >> 8;
 		priv->dev->broadcast[9] = priv->pkey & 0xff;
+
+		/*
+		 * Update the broadcast address in the priv->broadcast object,
+		 * in case it already exists, otherwise no one will do that.
+		 */
+		if (priv->broadcast) {
+			spin_lock_irq(&priv->lock);
+			memcpy(priv->broadcast->mcmember.mgid.raw,
+			       priv->dev->broadcast + 4,
+			sizeof(union ib_gid));
+			spin_unlock_irq(&priv->lock);
+		}
+
 		return 0;
 	}
 

  parent reply	other threads:[~2018-03-23  9:55 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-23  9:54 [PATCH 3.18 00/47] 3.18.102-stable review Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 01/47] platform/x86: asus-nb-wmi: Add wapf4 quirk for the X302UA Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 02/47] x86: i8259: export legacy_pic symbol Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 03/47] Input: ar1021_i2c - fix too long name in drivers device table Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 04/47] ACPI/processor: Replace racy task affinity logic Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 05/47] cpufreq/sh: " Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 06/47] genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 07/47] i2c: i2c-scmi: add a MS HID Greg Kroah-Hartman
2018-03-23  9:54 ` [PATCH 3.18 08/47] net: ipv6: send unsolicited NA on admin up Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 09/47] [media] media/dvb-core: Race condition when writing to CAM Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 10/47] spi: dw: Disable clock after unregistering the host Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 11/47] ath: Fix updating radar flags for coutry code India Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 12/47] scsi: virtio_scsi: Always try to read VPD pages Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 13/47] KVM: PPC: Book3S PR: Exit KVM on failed mapping Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 14/47] tcp: remove poll() flakes with FastOpen Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 15/47] e1000e: fix timing for 82579 Gigabit Ethernet controller Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 16/47] ALSA: hda - Fix headset microphone detection for ASUS N551 and N751 Greg Kroah-Hartman
2018-03-23  9:55 ` Greg Kroah-Hartman [this message]
2018-03-23  9:55 ` [PATCH 3.18 18/47] HSI: ssi_protocol: double free in ssip_pn_xmit() Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 19/47] Fix driver usage of 128B WQEs when WQ_CREATE is V1 Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 20/47] mmc: host: omap_hsmmc: checking for NULL instead of IS_ERR() Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 21/47] wan: pc300too: abort path on failure Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 22/47] qlcnic: fix unchecked return value Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 23/47] scsi: mac_esp: Replace bogus memory barrier with spinlock Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 24/47] rndis_wlan: add return value validation Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 25/47] Btrfs: send, fix file hole not being preserved due to inline extent Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 26/47] mac80211: dont parse encrypted management frames in ieee80211_frame_acked Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 27/47] mfd: palmas: Reset the POWERHOLD mux during power off Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 28/47] ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 29/47] ipmi/watchdog: fix wdog hang on panic waiting for ipmi response Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 30/47] bnx2x: Align RX buffers Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 31/47] power: supply: pda_power: move from timer to delayed_work Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 32/47] md/raid10: skip spare disk as first disk Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 33/47] ia64: fix module loading for gcc-5.4 Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 34/47] video: fbdev: udlfb: Fix buffer on stack Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 35/47] sm501fb: dont return zero on failure path in sm501fb_start() Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 36/47] cifs: small underflow in cnvrtDosUnixTm() Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 37/47] drm/msm: fix leak in failed get_pages Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 38/47] media: bt8xx: Fix err bt878_probe() Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 39/47] media: [RESEND] media: dvb-frontends: Add delay to Si2168 restart Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 40/47] mmc: avoid removing non-removable hosts during suspend Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 41/47] IB/ipoib: Avoid memory leak if the SA returns a different DGID Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 42/47] RDMA/cma: Use correct size when writing netlink stats Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 43/47] vgacon: Set VGA struct resource types Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 44/47] drm/omap: DMM: Check for DMM readiness after successful transaction commit Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 45/47] pinctrl: Really force states during suspend/resume Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 46/47] clk: si5351: Rename internal plls to avoid name collisions Greg Kroah-Hartman
2018-03-23  9:55 ` [PATCH 3.18 47/47] RDMA/ucma: Fix access to non-initialized CM_ID object Greg Kroah-Hartman
2018-03-23 14:00 ` [PATCH 3.18 00/47] 3.18.102-stable review kernelci.org bot
2018-03-23 20:43 ` Shuah Khan
2018-03-24  7:46   ` Greg Kroah-Hartman
2018-03-24  0:07 ` Guenter Roeck
2018-03-24  9:40 ` Harsh Shandilya
2018-03-24 10:05   ` Greg Kroah-Hartman

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