diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_main.c | 55 |
1 files changed, 33 insertions, 22 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index 7dddf9800e2f..e78c38d02432 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -3832,6 +3832,29 @@ static int iavf_handle_tclass(struct iavf_adapter *adapter, u32 tc, } /** + * iavf_find_cf - Find the cloud filter in the list + * @adapter: Board private structure + * @cookie: filter specific cookie + * + * Returns ptr to the filter object or NULL. Must be called while holding the + * cloud_filter_list_lock. + */ +static struct iavf_cloud_filter *iavf_find_cf(struct iavf_adapter *adapter, + unsigned long *cookie) +{ + struct iavf_cloud_filter *filter = NULL; + + if (!cookie) + return NULL; + + list_for_each_entry(filter, &adapter->cloud_filter_list, list) { + if (!memcmp(cookie, &filter->cookie, sizeof(filter->cookie))) + return filter; + } + return NULL; +} + +/** * iavf_configure_clsflower - Add tc flower filters * @adapter: board private structure * @cls_flower: Pointer to struct flow_cls_offload @@ -3862,6 +3885,15 @@ static int iavf_configure_clsflower(struct iavf_adapter *adapter, filter->cookie = cls_flower->cookie; + /* bail out here if filter already exists */ + spin_lock_bh(&adapter->cloud_filter_list_lock); + if (iavf_find_cf(adapter, &cls_flower->cookie)) { + dev_err(&adapter->pdev->dev, "Failed to add TC Flower filter, it already exists\n"); + err = -EEXIST; + goto spin_unlock; + } + spin_unlock_bh(&adapter->cloud_filter_list_lock); + /* set the mask to all zeroes to begin with */ memset(&filter->f.mask.tcp_spec, 0, sizeof(struct virtchnl_l4_spec)); /* start out with flow type and eth type IPv4 to begin with */ @@ -3880,6 +3912,7 @@ static int iavf_configure_clsflower(struct iavf_adapter *adapter, adapter->num_cloud_filters++; filter->add = true; adapter->aq_required |= IAVF_FLAG_AQ_ADD_CLOUD_FILTER; +spin_unlock: spin_unlock_bh(&adapter->cloud_filter_list_lock); err: if (err) @@ -3889,28 +3922,6 @@ err: return err; } -/* iavf_find_cf - Find the cloud filter in the list - * @adapter: Board private structure - * @cookie: filter specific cookie - * - * Returns ptr to the filter object or NULL. Must be called while holding the - * cloud_filter_list_lock. - */ -static struct iavf_cloud_filter *iavf_find_cf(struct iavf_adapter *adapter, - unsigned long *cookie) -{ - struct iavf_cloud_filter *filter = NULL; - - if (!cookie) - return NULL; - - list_for_each_entry(filter, &adapter->cloud_filter_list, list) { - if (!memcmp(cookie, &filter->cookie, sizeof(filter->cookie))) - return filter; - } - return NULL; -} - /** * iavf_delete_clsflower - Remove tc flower filters * @adapter: board private structure |