diff options
| author |   Björn Töpel <bjorn.topel@intel.com> | 2018-10-02 10:00:32 +0200 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-10-03 12:51:14 -0700 |
| commit | d0bcacd0a130974f58a56318db7a5ca6a7ba1d5a (patch) | |
| tree | 64fc0abfd96aa095b9c4134a27280322a4a0b0f2 /drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h | |
| parent | ixgbe: move common Rx functions to ixgbe_txrx_common.h (diff) | |
| download | linux-dev-d0bcacd0a130974f58a56318db7a5ca6a7ba1d5a.tar.xz linux-dev-d0bcacd0a130974f58a56318db7a5ca6a7ba1d5a.zip | |
ixgbe: add AF_XDP zero-copy Rx support
This patch adds zero-copy Rx support for AF_XDP sockets. Instead of
allocating buffers of type MEM_TYPE_PAGE_SHARED, the Rx frames are
allocated as MEM_TYPE_ZERO_COPY when AF_XDP is enabled for a certain
queue.
All AF_XDP specific functions are added to a new file, ixgbe_xsk.c.
Note that when AF_XDP zero-copy is enabled, the XDP action XDP_PASS
will allocate a new buffer and copy the zero-copy frame prior passing
it to the kernel stack.
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.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/ixgbe/ixgbe_txrx_common.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h index 3780d315b991..cf219f4e009d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h @@ -23,4 +23,19 @@ void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector, void ixgbe_txrx_ring_disable(struct ixgbe_adapter *adapter, int ring); void ixgbe_txrx_ring_enable(struct ixgbe_adapter *adapter, int ring); +struct xdp_umem *ixgbe_xsk_umem(struct ixgbe_adapter *adapter, + struct ixgbe_ring *ring); +int ixgbe_xsk_umem_query(struct ixgbe_adapter *adapter, struct xdp_umem **umem, + u16 qid); +int ixgbe_xsk_umem_setup(struct ixgbe_adapter *adapter, struct xdp_umem *umem, + u16 qid); + +void ixgbe_zca_free(struct zero_copy_allocator *alloc, unsigned long handle); + +void ixgbe_alloc_rx_buffers_zc(struct ixgbe_ring *rx_ring, u16 cleaned_count); +int ixgbe_clean_rx_irq_zc(struct ixgbe_q_vector *q_vector, + struct ixgbe_ring *rx_ring, + const int budget); +void ixgbe_xsk_clean_rx_ring(struct ixgbe_ring *rx_ring); + #endif /* #define _IXGBE_TXRX_COMMON_H_ */ |