diff options
| author | Björn Töpel <bjorn.topel@intel.com> | 2018-09-07 11:18:47 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-09-25 23:15:16 +0300 |
| commit | 411dc16ff1775517ec91cdb64be7ee0daca44e22 (patch) | |
| tree | 73b00ba78878f326e111c092c94f0d3200a4957c /drivers/net/ethernet/intel/i40e/i40e_txrx_common.h | |
| parent | f5bd91388e26557f64ca999e0006038c7a919308 (diff) | |
| download | linux-411dc16ff1775517ec91cdb64be7ee0daca44e22.tar.xz | |
i40e: clean zero-copy XDP Rx ring on shutdown/reset
Outstanding Rx descriptors are temporarily stored on a stash/reuse
queue. When/if the HW rings comes up again, entries from the stash are
used to re-populate the ring.
The latter required some restructuring of the allocation scheme for
the AF_XDP zero-copy implementation. There is now a fast, and a slow
allocation. The "fast allocation" is used from the fast-path and
obtains free buffers from the fill ring and the internal recycle
mechanism. The "slow allocation" is only used in ring setup, and
obtains buffers from the fill ring and the stash (if any).
Signed-off-by: Björn Töpel <bjorn.topel@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/i40e/i40e_txrx_common.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx_common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx_common.h b/drivers/net/ethernet/intel/i40e/i40e_txrx_common.h index 29c68b29d36f..8d46acff6f2e 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx_common.h +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx_common.h @@ -87,6 +87,7 @@ static inline void i40e_arm_wb(struct i40e_ring *tx_ring, } } +void i40e_xsk_clean_rx_ring(struct i40e_ring *rx_ring); void i40e_xsk_clean_tx_ring(struct i40e_ring *tx_ring); #endif /* I40E_TXRX_COMMON_ */ |