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authorJakub Kicinski <jakub.kicinski@netronome.com>2018-09-07 10:18:46 +0200
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2018-09-25 13:13:15 -0700
commitf5bd91388e26557f64ca999e0006038c7a919308 (patch)
tree28d868b5c3ed674e3bc2e18cd179657d4301bd9d /drivers/net/ethernet/intel/i40e
parenti40e: clean zero-copy XDP Tx ring on shutdown/reset (diff)
downloadlinux-dev-f5bd91388e26557f64ca999e0006038c7a919308.tar.xz
linux-dev-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 'drivers/net/ethernet/intel/i40e')
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