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-rw-r--r--drivers/net/ethernet/intel/i40e/i40e.h3
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_main.c20
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_txrx.c4
3 files changed, 20 insertions, 7 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 2ec6e8a11ee..0fbb32a8ad4 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -154,7 +154,7 @@ struct i40e_lump_tracking {
#define I40E_DEFAULT_ATR_SAMPLE_RATE 20
#define I40E_FDIR_MAX_RAW_PACKET_SIZE 512
#define I40E_FDIR_BUFFER_FULL_MARGIN 10
-#define I40E_FDIR_BUFFER_HEAD_ROOM 200
+#define I40E_FDIR_BUFFER_HEAD_ROOM 32
enum i40e_fd_stat_idx {
I40E_FD_STAT_ATR,
@@ -582,6 +582,7 @@ int i40e_add_del_fdir(struct i40e_vsi *vsi,
struct i40e_fdir_filter *input, bool add);
void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
int i40e_get_current_fd_count(struct i40e_pf *pf);
+int i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features);
void i40e_set_ethtool_ops(struct net_device *netdev);
struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 5980d6b3fb1..17b1295bf35 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4944,7 +4944,20 @@ static void i40e_service_event_complete(struct i40e_pf *pf)
}
/**
- * i40e_get_current_fd_count - Get the count of FD filters programmed in the HW
+ * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
+ * @pf: board private structure
+ **/
+int i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf)
+{
+ int val, fcnt_prog;
+
+ val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
+ fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK);
+ return fcnt_prog;
+}
+
+/**
+ * i40e_get_current_fd_count - Get the count of total FD filters programmed
* @pf: board private structure
**/
int i40e_get_current_fd_count(struct i40e_pf *pf)
@@ -4956,7 +4969,6 @@ int i40e_get_current_fd_count(struct i40e_pf *pf)
I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
return fcnt_prog;
}
-
/**
* i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
* @pf: board private structure
@@ -4971,8 +4983,8 @@ void i40e_fdir_check_and_reenable(struct i40e_pf *pf)
if ((pf->flags & I40E_FLAG_FD_ATR_ENABLED) &&
(pf->flags & I40E_FLAG_FD_SB_ENABLED))
return;
- fcnt_prog = i40e_get_current_fd_count(pf);
- fcnt_avail = i40e_get_fd_cnt_all(pf);
+ fcnt_prog = i40e_get_cur_guaranteed_fd_count(pf);
+ fcnt_avail = pf->fdir_pf_filter_count;
if (fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM)) {
if ((pf->flags & I40E_FLAG_FD_SB_ENABLED) &&
(pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) {
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 4d96b743f99..c5749d6526e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -437,8 +437,8 @@ static void i40e_fd_handle_status(struct i40e_ring *rx_ring,
rx_desc->wb.qword0.hi_dword.fd_id);
/* filter programming failed most likely due to table full */
- fcnt_prog = i40e_get_current_fd_count(pf);
- fcnt_avail = i40e_get_fd_cnt_all(pf);
+ fcnt_prog = i40e_get_cur_guaranteed_fd_count(pf);
+ fcnt_avail = pf->fdir_pf_filter_count;
/* If ATR is running fcnt_prog can quickly change,
* if we are very close to full, it makes sense to disable
* FD ATR/SB and then re-enable it when there is room.