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| author | Jacob Keller <jacob.e.keller@intel.com> | 2017-10-27 11:06:50 -0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-01-10 12:41:21 -0800 |
| commit | 504398f0a78e724775d75abb3a0379ca04211a95 (patch) | |
| tree | 780bfdddcd832d55372cc18318226da39f883a94 /drivers/net/ethernet/intel/i40evf/i40evf.h | |
| parent | 44b034b406211fc103159f82b9e601e05675c739 (diff) | |
| download | linux-504398f0a78e724775d75abb3a0379ca04211a95.tar.bz2 | |
i40evf: use spinlock to protect (mac|vlan)_filter_list
Stop overloading the __I40EVF_IN_CRITICAL_TASK bit lock to protect the
mac_filter_list and vlan_filter_list. Instead, implement a spinlock to
protect these two lists, similar to how we protect the hash in the i40e
PF code.
Ensure that every place where we access the list uses the spinlock to
ensure consistency, and stop holding the critical section around blocks
of code which only need access to the macvlan filter lists.
This refactor helps simplify the locking behavior, and is necessary as
a future refactor to the __I40EVF_IN_CRITICAL_TASK would cause
a deadlock otherwise.
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>
Diffstat (limited to 'drivers/net/ethernet/intel/i40evf/i40evf.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40evf.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf.h b/drivers/net/ethernet/intel/i40evf/i40evf.h index de0af521d602..47040ab2e298 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf.h +++ b/drivers/net/ethernet/intel/i40evf/i40evf.h @@ -199,6 +199,9 @@ struct i40evf_adapter { wait_queue_head_t down_waitqueue; struct i40e_q_vector *q_vectors; struct list_head vlan_filter_list; + struct list_head mac_filter_list; + /* Lock to protect accesses to MAC and VLAN lists */ + spinlock_t mac_vlan_list_lock; char misc_vector_name[IFNAMSIZ + 9]; int num_active_queues; int num_req_queues; @@ -206,7 +209,6 @@ struct i40evf_adapter { /* TX */ struct i40e_ring *tx_rings; u32 tx_timeout_count; - struct list_head mac_filter_list; u32 tx_desc_count; /* RX */ |