diff options
| author |   Jacob Keller <jacob.e.keller@intel.com> | 2018-03-16 01:26:30 -0700 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-03-26 13:09:44 -0700 |
| commit | bfe040c3851ad09e0944de7b0973a71323610e23 (patch) | |
| tree | c94ef46472b96a18c04666fd5ee1c48a5af78c40 /drivers/net/ethernet | |
| parent | Merge tag 'wireless-drivers-next-for-davem-2018-03-24' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next (diff) | |
| download | linux-dev-bfe040c3851ad09e0944de7b0973a71323610e23.tar.xz linux-dev-bfe040c3851ad09e0944de7b0973a71323610e23.zip | |
i40e: move I40E_FLAG_FILTER_SYNC to a state bit
The I40E_FLAG_FILTER_SYNC flag is modified during run time possibly when
the RTNL lock is not held. Thus, it should not be part of pf->flags, and
instead should be using atomic bit operations in the pf->state field.
Create a __I40E_MACVLAN_SYNC_PENDING state bit, and use it instead of
the old I40E_FLAG_FILTER_SYNC flag.
This is part of a larger effort to remove the need for cmpxchg64 in
i40e_set_priv_flags().
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')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 16 |
2 files changed, 11 insertions, 8 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index 1d33a8b3ef54..52f99142244b 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -162,6 +162,7 @@ enum i40e_state_t { __I40E_RESET_FAILED, __I40E_PORT_SUSPENDED, __I40E_VF_DISABLE, + __I40E_MACVLAN_SYNC_PENDING, /* This must be last as it determines the size of the BITMAP */ __I40E_STATE_SIZE__, }; @@ -516,7 +517,7 @@ struct i40e_pf { #define I40E_FLAG_MSIX_ENABLED BIT_ULL(2) #define I40E_FLAG_RSS_ENABLED BIT_ULL(3) #define I40E_FLAG_VMDQ_ENABLED BIT_ULL(4) -#define I40E_FLAG_FILTER_SYNC BIT_ULL(5) +/* Gap for BIT_ULL(5) */ #define I40E_FLAG_SRIOV_ENABLED BIT_ULL(6) #define I40E_FLAG_DCB_CAPABLE BIT_ULL(7) #define I40E_FLAG_DCB_ENABLED BIT_ULL(8) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 536ed8e8a96f..7fc2c6d89637 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1382,7 +1382,7 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, hash_add(vsi->mac_filter_hash, &f->hlist, key); vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; - vsi->back->flags |= I40E_FLAG_FILTER_SYNC; + set_bit(__I40E_MACVLAN_SYNC_PENDING, vsi->back->state); } /* If we're asked to add a filter that has been marked for removal, it @@ -1432,7 +1432,7 @@ void __i40e_del_filter(struct i40e_vsi *vsi, struct i40e_mac_filter *f) } vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; - vsi->back->flags |= I40E_FLAG_FILTER_SYNC; + set_bit(__I40E_MACVLAN_SYNC_PENDING, vsi->state); } /** @@ -1955,7 +1955,7 @@ static void i40e_set_rx_mode(struct net_device *netdev) /* check for other flag changes */ if (vsi->current_netdev_flags != vsi->netdev->flags) { vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; - vsi->back->flags |= I40E_FLAG_FILTER_SYNC; + set_bit(__I40E_MACVLAN_SYNC_PENDING, vsi->back->state); } } @@ -2577,9 +2577,10 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf) { int v; - if (!pf || !(pf->flags & I40E_FLAG_FILTER_SYNC)) + if (!pf) + return; + if (!test_and_clear_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state)) return; - pf->flags &= ~I40E_FLAG_FILTER_SYNC; for (v = 0; v < pf->num_alloc_vsi; v++) { if (pf->vsi[v] && @@ -2588,7 +2589,8 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf) if (ret) { /* come back and try again later */ - pf->flags |= I40E_FLAG_FILTER_SYNC; + set_bit(__I40E_MACVLAN_SYNC_PENDING, + pf->state); break; } } @@ -12240,7 +12242,7 @@ static int i40e_add_vsi(struct i40e_vsi *vsi) if (f_count) { vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; - pf->flags |= I40E_FLAG_FILTER_SYNC; + set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state); } /* Update VSI BW information */ |