diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-09-07 10:18:46 +0200 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-09-25 22:13:15 +0200 |
| commit | f5bd91388e26557f64ca999e0006038c7a919308 (patch) | |
| tree | 28d868b5c3ed674e3bc2e18cd179657d4301bd9d /net/xdp/xdp_umem.c | |
| parent | i40e: clean zero-copy XDP Tx ring on shutdown/reset (diff) | |
| download | linux-f5bd91388e26557f64ca999e0006038c7a919308.tar.xz linux-f5bd91388e26557f64ca999e0006038c7a919308.zip | |
net: xsk: add a simple buffer reuse queue
XSK UMEM is strongly single producer single consumer so reuse of
frames is challenging. Add a simple "stash" of FILL packets to
reuse for drivers to optionally make use of. This is useful
when driver has to free (ndo_stop) or resize a ring with an active
AF_XDP ZC socket.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'net/xdp/xdp_umem.c')
| -rw-r--r-- | net/xdp/xdp_umem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index b3b632c5aeae..555427b3e0fe 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -165,6 +165,8 @@ static void xdp_umem_release(struct xdp_umem *umem) umem->cq = NULL; } + xsk_reuseq_destroy(umem); + xdp_umem_unpin_pages(umem); task = get_pid_task(umem->pid, PIDTYPE_PID); |