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[next-queue,S2,11/15] i40e: stop flow director on shutdown

Message ID 1427257825-24519-11-git-send-email-jeffrey.t.kirsher@intel.com
State Accepted
Delegated to: Jeff Kirsher
Headers show

Commit Message

Kirsher, Jeffrey T March 25, 2015, 4:30 a.m. UTC 
From: Mitch Williams <mitch.a.williams@intel.com>

In some cases, the hardware would continue to try to access the FDIR
ring after entering D3Hot state, which would cause either PCIe errors or
NMIs, depending upon system configuration.

Explicitly stop FDIR in our shutdown routine to eliminate this
possibility.

Change-ID: Ib98060d6352ec595ab9a78bfe252675a9fa5d8bc
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 15cee4d..5e79054 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -10210,6 +10210,8 @@  static int i40e_suspend(struct pci_dev *pdev, pm_message_t state)
 	set_bit(__I40E_DOWN, &pf->state);
 	del_timer_sync(&pf->service_timer);
 	cancel_work_sync(&pf->service_task);
+	i40e_fdir_teardown(pf);
+
 	rtnl_lock();
 	i40e_prep_for_reset(pf);
 	rtnl_unlock();