update to Proxmox-6.2.9-1
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Dave Ertman <david.m.ertman@intel.com>
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Date: Fri, 10 Mar 2023 11:48:33 -0800
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Subject: [PATCH] ice: avoid bonding causing auxiliary plug/unplug under RTNL
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lock
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RDMA is not supported in ice on a PF that has been added to a bonded
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interface. To enforce this, when an interface enters a bond, we unplug
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the auxiliary device that supports RDMA functionality. This unplug
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currently happens in the context of handling the netdev bonding event.
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This event is sent to the ice driver under RTNL context. This is causing
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a deadlock where the RDMA driver is waiting for the RTNL lock to complete
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the removal.
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Defer the unplugging/re-plugging of the auxiliary device to the service
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task so that it is not performed under the RTNL lock context.
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Cc: stable@vger.kernel.org # 6.1.x
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Reported-by: Jaroslav Pulchart <jaroslav.pulchart@gooddata.com>
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Link: https://lore.kernel.org/netdev/CAK8fFZ6A_Gphw_3-QMGKEFQk=sfCw1Qmq0TVZK3rtAi7vb621A@mail.gmail.com/
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Fixes: 5cb1ebdbc434 ("ice: Fix race condition during interface enslave")
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Fixes: 4eace75e0853 ("RDMA/irdma: Report the correct link speed")
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Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
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Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
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Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
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Link: https://lore.kernel.org/r/20230310194833.3074601-1-anthony.l.nguyen@intel.com
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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---
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drivers/net/ethernet/intel/ice/ice.h | 14 +++++---------
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drivers/net/ethernet/intel/ice/ice_main.c | 19 ++++++++-----------
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2 files changed, 13 insertions(+), 20 deletions(-)
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diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
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index 713069f809ec..3cad5e6b2ad1 100644
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--- a/drivers/net/ethernet/intel/ice/ice.h
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+++ b/drivers/net/ethernet/intel/ice/ice.h
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@@ -506,6 +506,7 @@ enum ice_pf_flags {
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ICE_FLAG_VF_VLAN_PRUNING,
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ICE_FLAG_LINK_LENIENT_MODE_ENA,
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ICE_FLAG_PLUG_AUX_DEV,
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+ ICE_FLAG_UNPLUG_AUX_DEV,
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ICE_FLAG_MTU_CHANGED,
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ICE_FLAG_GNSS, /* GNSS successfully initialized */
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ICE_PF_FLAGS_NBITS /* must be last */
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@@ -950,16 +951,11 @@ static inline void ice_set_rdma_cap(struct ice_pf *pf)
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*/
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static inline void ice_clear_rdma_cap(struct ice_pf *pf)
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{
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- /* We can directly unplug aux device here only if the flag bit
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- * ICE_FLAG_PLUG_AUX_DEV is not set because ice_unplug_aux_dev()
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- * could race with ice_plug_aux_dev() called from
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- * ice_service_task(). In this case we only clear that bit now and
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- * aux device will be unplugged later once ice_plug_aux_device()
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- * called from ice_service_task() finishes (see ice_service_task()).
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+ /* defer unplug to service task to avoid RTNL lock and
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+ * clear PLUG bit so that pending plugs don't interfere
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*/
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- if (!test_and_clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags))
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- ice_unplug_aux_dev(pf);
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-
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+ clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags);
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+ set_bit(ICE_FLAG_UNPLUG_AUX_DEV, pf->flags);
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clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);
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}
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#endif /* _ICE_H_ */
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diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
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index 381146282439..56155a04cc0c 100644
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--- a/drivers/net/ethernet/intel/ice/ice_main.c
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+++ b/drivers/net/ethernet/intel/ice/ice_main.c
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@@ -2316,18 +2316,15 @@ static void ice_service_task(struct work_struct *work)
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}
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}
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- if (test_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags)) {
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- /* Plug aux device per request */
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- ice_plug_aux_dev(pf);
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+ /* unplug aux dev per request, if an unplug request came in
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+ * while processing a plug request, this will handle it
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+ */
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+ if (test_and_clear_bit(ICE_FLAG_UNPLUG_AUX_DEV, pf->flags))
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+ ice_unplug_aux_dev(pf);
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- /* Mark plugging as done but check whether unplug was
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- * requested during ice_plug_aux_dev() call
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- * (e.g. from ice_clear_rdma_cap()) and if so then
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- * plug aux device.
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- */
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- if (!test_and_clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags))
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- ice_unplug_aux_dev(pf);
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- }
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+ /* Plug aux device per request */
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+ if (test_and_clear_bit(ICE_FLAG_PLUG_AUX_DEV, pf->flags))
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+ ice_plug_aux_dev(pf);
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if (test_and_clear_bit(ICE_FLAG_MTU_CHANGED, pf->flags)) {
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struct iidc_event *event;
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@ -1 +1 @@
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Subproject commit e3be6fa29eb28c17aa143a81ecf5ae00b7b3e610
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Subproject commit f384010f9ee2a591f1e725fae5a4efbfbad864b3
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