diff options
| author | Anjali Singhai Jain <anjali.singhai@intel.com> | 2014-06-04 04:22:47 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-06-26 04:45:30 -0700 |
| commit | 129573883c5b39d978c4a7fbe513f8e54898e27e (patch) | |
| tree | 8d7e8f6a4c264eccaa23f10776ee27667716a8d1 /drivers/net/ethernet/intel/i40e/i40e_txrx.c | |
| parent | 12be846ddda83b9f641be6cdbfd6891594fda4ec (diff) | |
i40e: Fix the FD sideband logic to detect a FD table full condition
Hardware does not have a way of telling a PF how much of the global
shared FD table space is still available or is consumed.
Previously, every PF but PF0 would think there was still space available
when there wasn't. The PFs would continue to try to add filters and fail.
With this new logic if a filter programming error is detected we just
check if we are close to the guaranteed space full and that can be used
as a hint to say, there might not be space and we should turn off the
features. This way we can turn off the feature in SW for all PFs in
time.
Change-ID: I725cb2fab16c033f883056362b4542c1400503c5
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_txrx.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 4d96b743f991..c5749d6526ea 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. |