[net-next,09/13] i40e: reset fd_tcp_rule count when restoring filters

Submitted by Jeff Kirsher on March 20, 2017, 11:47 p.m.

Details

Message ID 20170320234712.84157-10-jeffrey.t.kirsher@intel.com
State Accepted
Delegated to: David Miller
Headers show

Commit Message

Jeff Kirsher March 20, 2017, 11:47 p.m.
From: Jacob Keller <jacob.e.keller@intel.com>

Since we're about to reprogram the filters, we need to ensure that the
fd_tcp_rule count is correctly reset to 0. Otherwise, we will keep
a stale count that does not accurately reflect the number of programmed
TCPv4 filters.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 3 +++
 1 file changed, 3 insertions(+)

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diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 221e1705c031..437b79eeb8b5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3283,6 +3283,9 @@  static void i40e_fdir_filter_restore(struct i40e_vsi *vsi)
 	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
 		return;
 
+	/* Reset FDir counters as we're replaying all existing filters */
+	pf->fd_tcp_rule = 0;
+
 	hlist_for_each_entry_safe(filter, node,
 				  &pf->fdir_filter_list, fdir_node) {
 		i40e_add_del_fdir(vsi, filter, true);