diff options
| author | Kevin Laatz <kevin.laatz@intel.com> | 2019-09-05 04:12:17 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-09-05 14:53:43 +0300 |
| commit | 7cbbf9f1fa23a045332757696740f41e885d6e09 (patch) | |
| tree | 842444a422c97d532ac9424fc80dcb3950df5a6f /drivers/net/ethernet/intel | |
| parent | 4c5d9a7fa149a8725defa0bda6eeb5f36998ae64 (diff) | |
| download | linux-7cbbf9f1fa23a045332757696740f41e885d6e09.tar.xz | |
ixgbe: fix xdp handle calculations
Currently, we don't add headroom to the handle in ixgbe_zca_free,
ixgbe_alloc_buffer_slow_zc and ixgbe_alloc_buffer_zc. The addition of the
headroom to the handle was removed in
commit d8c3061e5edd ("ixgbe: modify driver for handling offsets"), which
will break things when headroom isvnon-zero. This patch fixes this and uses
xsk_umem_adjust_offset to add it appropritely based on the mode being run.
Fixes: d8c3061e5edd ("ixgbe: modify driver for handling offsets")
Reported-by: Bjorn Topel <bjorn.topel@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'drivers/net/ethernet/intel')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c index 17061c799f72..ad802a8909e0 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c @@ -248,7 +248,8 @@ void ixgbe_zca_free(struct zero_copy_allocator *alloc, unsigned long handle) bi->addr = xdp_umem_get_data(rx_ring->xsk_umem, handle); bi->addr += hr; - bi->handle = (u64)handle; + bi->handle = xsk_umem_adjust_offset(rx_ring->xsk_umem, (u64)handle, + rx_ring->xsk_umem->headroom); } static bool ixgbe_alloc_buffer_zc(struct ixgbe_ring *rx_ring, @@ -274,7 +275,7 @@ static bool ixgbe_alloc_buffer_zc(struct ixgbe_ring *rx_ring, bi->addr = xdp_umem_get_data(umem, handle); bi->addr += hr; - bi->handle = handle; + bi->handle = xsk_umem_adjust_offset(umem, handle, umem->headroom); xsk_umem_discard_addr(umem); return true; @@ -301,7 +302,7 @@ static bool ixgbe_alloc_buffer_slow_zc(struct ixgbe_ring *rx_ring, bi->addr = xdp_umem_get_data(umem, handle); bi->addr += hr; - bi->handle = handle; + bi->handle = xsk_umem_adjust_offset(umem, handle, umem->headroom); xsk_umem_discard_addr_rq(umem); return true; |