Re: [ewg] Re: [ofa-general] OFED meeting agenda for today (June 30, 2008)
Steve Wise wrote: The MEM_MGT_EXTENSIONS patches are in Roland's infiniband.git for_2_6_27 tree. Since 2.6.27-rc1 will be merged into ofed-1.4, I shouldn't worry about generating patches for ofed-1.4, right? It will be in OFED 1.4 You can start preparing the backport patches if needed so the integration will be fater Tziporet. ___ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
Re: [ewg] Re: [ofa-general] OFED meeting agenda for today (June 30, 2008)
Steve Wise wrote: The MEM_MGT_EXTENSIONS patches are in Roland's infiniband.git for_2_6_27 tree. Since 2.6.27-rc1 will be merged into ofed-1.4, I shouldn't worry about generating patches for ofed-1.4, right? It will be in OFED 1.4 You can start preparing the backport patches if needed so the integration will be faster Tziporet. ___ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
[ewg] [PATCH] IB/IPoIB: Fix change of mtu to use kernel API
>From aefedbdec99b2db70a0f0de50b9bfb58ccb7e9ab Mon Sep 17 00:00:00 2001
From: Eli Cohen <[EMAIL PROTECTED]>
Date: Mon, 30 Jun 2008 18:59:54 +0300
Subject: [PATCH] IB/IPoIB: Fix change of mtu to use kernel API
When the driver sets the MTU of the net device, it should make use of
dev_set_mtu() instead of directly setting the mtu field of struct
netdevice. Failure to do so will result in functions registered to be
called upon MTU change will not get called (this is done through
call_netdevice_notifiers()).
We have seen problems with performance degredation upon changing the
MTU with ofed which has a patch to set the MTU when changing to CM
mode to its maximum allowed value. Using dev_set_mtu() solved that
problem.
Signed-off-by: Eli Cohen <[EMAIL PROTECTED]>
---
drivers/infiniband/ulp/ipoib/ipoib_cm.c|2 +-
drivers/infiniband/ulp/ipoib/ipoib_multicast.c |2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 6223fc3..82f3f2f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -1410,7 +1410,7 @@ static ssize_t set_mode(struct device *d, struct
device_attribute *attr,
if (!strcmp(buf, "datagram\n")) {
clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
- dev->mtu = min(priv->mcast_mtu, dev->mtu);
+ dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu))
ipoib_flush_paths(dev);
if (test_bit(IPOIB_FLAG_CSUM, &priv->flags)) {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 4a6538b..be10d78 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -574,7 +574,7 @@ void ipoib_mcast_join_task(struct work_struct *work)
priv->mcast_mtu =
IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
if (!ipoib_cm_admin_enabled(dev))
- dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);
+ dev_set_mtu(dev, min(priv->mcast_mtu, priv->admin_mtu));
ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n");
--
1.5.6
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[ewg] Re: [ofa-general] soft lockup in the kernel mad layer
Or Gerlitz wrote: doing some tests against some nodes with new HCA firmware (connectx FW 2.5) which seems to be very slow responding on node info queries, I think that I have stepped on a bug/s in the kernel mad code The IB bits used on this node are not the mainline kernel ones but rather git://git.openfabrics.org/ofed_1_3/linux-2.6.git ofed_kernel commit 564e9e9383272f4311fd87ff4e5447cfcebad73a Jack, Vlad Looking now on the ofed_1_3/linux-2.6.git tree, I don't see the below commit there, am I correct? Is it because the fix was pushed to the kernel after the "feature freeze" of ofed 1.3 but not into ofed since you don't pick all the fixes that get into the kernel during an ofed cycle? Or. commit b61d92d8ae6aa13b17d1c31e69d123879cec2ee2 Author: Sean Hefty <[EMAIL PROTECTED]> Date: Fri Nov 30 17:30:18 2007 -0800 IB/mad: Fix incorrect access to items on local_list In cancel_mads(), MADs are moved from the wait_list and local_list to a cancel_list for processing. However, the structures on these two lists are not the same. The wait_list references struct ib_mad_send_wr_private, but local_list references struct ib_mad_local_private. Cancel_mads() treats all items moved to the cancel_list as struct ib_mad_send_wr_private. This leads to a system crash when requests are moved from the local_list to the cancel_list. Fix this by leaving local_list alone. All requests on the local_list have completed are just awaiting processing by a queued worker thread. Bug (crash) reported by Dotan Barak <[EMAIL PROTECTED]>. Problem with local_list access reported by Robert Reynolds <[EMAIL PROTECTED]>. Signed-off-by: Sean Hefty <[EMAIL PROTECTED]> Signed-off-by: Roland Dreier <[EMAIL PROTECTED]> diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 5eace99..fbe16d5 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -2275,8 +2275,6 @@ static void cancel_mads(struct ib_mad_agent_private *mad_agent_priv) /* Empty wait list to prevent receives from finding a request */ list_splice_init(&mad_agent_priv->wait_list, &cancel_list); - /* Empty local completion list as well */ - list_splice_init(&mad_agent_priv->local_list, &cancel_list); spin_unlock_irqrestore(&mad_agent_priv->lock, flags); /* Report all cancelled requests */ ___ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
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[ewg] Re: [ofa-general] soft lockup in the kernel mad layer
On Tuesday 01 July 2008 12:44, Or Gerlitz wrote: > Or Gerlitz wrote: > > doing some tests against some nodes with new HCA firmware (connectx FW 2.5) > > which seems to be very slow responding on node info queries, I think that I > > have stepped on a bug/s in the kernel mad code The IB bits used on this > > node are not the mainline kernel ones but rather > > git://git.openfabrics.org/ofed_1_3/linux-2.6.git ofed_kernel > > commit 564e9e9383272f4311fd87ff4e5447cfcebad73a > > > Jack, Vlad > > Looking now on the ofed_1_3/linux-2.6.git tree, I don't see the below > commit there, am I correct? > > Is it because the fix was pushed to the kernel after the "feature > freeze" of ofed 1.3 but not into ofed > since you don't pick all the fixes that get into the kernel during an > ofed cycle? > > Or. > > commit b61d92d8ae6aa13b17d1c31e69d123879cec2ee2 > > Author: Sean Hefty <[EMAIL PROTECTED]> > > Date: Fri Nov 30 17:30:18 2007 -0800 > > > > IB/mad: Fix incorrect access to items on local_list > > You are correct (we missed this patch probably due to the fact that it was so close to the 1.3 release, which was based on kernel 2.6.24). It is already in the OFED 1.4 tree. I'll add it to the OFED 1.3 tree, so that it will be included in any future OFED 1.3 releases. (Note that Roland asked Linus to pull this patch for the kernel 2.6.25 tree on Jan 25, 2008: http://lists.openfabrics.org/pipermail/general/2008-January/045492.html ) - Jack ___ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
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[ewg] OFED June 30, 2008 meeting sumary
OFED meeting summary for June 30, 2008 == Summary: - Agreed that all compilation problems should be fixed for beginning of next week - July 7 - All new features from kernel 2.6.27 will be part of OFED 1.4 Details: 1. OFED 1.4 status: - Kernel: - Merged with 2.6.26-rc8 - Components with compilation problems: ipath - Qlogic, ehca - IBM, iSER - Voltaire, qlogic_vnic - Qlogic Qlogic and Voltaire plan to fix compilation problems by Monday next week (July 7). IBM - need update from - New components: iSER target - expected next week NFSoRDMA - no update from Jeff yet - RDS: iWARP support will be added for the feature freeze - Userspace status: - uDAPL: - Moved the 1.0 library to the name compat to make it clear that this is only for compatibility - Added socket based CM - for both scalability and interop with Windows - Added UD extensions - for version 2.0 only - MPI: Open MPI: (from Yiftach since Jeff was not at the meeting): Branch for version 1.3 was opened. Should be ready for OFED 1.4 VMAPICH 1.1 and VMAPICH2 1.2 (OSU - Jonathan): Both should be ready with first version to our feature freeze in 2 weeks. - Management: SM: no report (Sasha did not participated) Congestion Control: Added to ibutils, as experimental feature for OFED 1.4 2. Open discussion: - Rupert asked about RHEL5 version that can be used for the interop event. OFED already supports RHEL 5, 5.1 and 5.2 so the decision depend on the inteop decision. Note: All meeting minutes are now places on the web at: http://www.openfabrics.org/txt/documentation/linux/EWG_meeting_minutes/ ___ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
[ewg] [PATCH] IB/ehca: Make device table externally visible
This gives ehca an autogenerated modalias and therefore enables automatic
loading.
Signed-off-by: Joachim Fenkes <[EMAIL PROTECTED]>
---
drivers/infiniband/hw/ehca/ehca_main.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c
b/drivers/infiniband/hw/ehca/ehca_main.c
index 482103e..598844d 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -923,6 +923,7 @@ static struct of_device_id ehca_device_table[] =
},
{},
};
+MODULE_DEVICE_TABLE(of, ehca_device_table);
static struct of_platform_driver ehca_driver = {
.name= "ehca",
--
1.5.5
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[ewg] Re: [PATCH] IB/ehca: Make device table externally visible
thanks, applied ___ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
