[Intel-wired-lan] [PATCH S30 v4 3/9] ice: Add support for XDP
Bowers, AndrewX
andrewx.bowers at intel.com
Mon Nov 4 20:16:36 UTC 2019
> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Tony Nguyen
> Sent: Thursday, October 31, 2019 7:30 AM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH S30 v4 3/9] ice: Add support for XDP
>
> From: Maciej Fijalkowski <maciej.fijalkowski at intel.com>
>
> Add support for XDP. Implement ndo_bpf and ndo_xdp_xmit. Upon load of
> an XDP program, allocate additional Tx rings for dedicated XDP use.
> The following actions are supported: XDP_TX, XDP_DROP, XDP_REDIRECT,
> XDP_PASS, and XDP_ABORTED.
>
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski at intel.com>
> Signed-off-by: Tony Nguyen <anthony.l.nguyen at intel.com>
> ---
> v4:
> - return -EOPNOTSUPP instead of ENOTSUPP for too large MTU which makes
> it impossible to attach XDP prog
> - don't check for case when there's no XDP prog currently on interface
> and ice_xdp() is called with NULL bpf_prog; this happens when user
> does "ip link set eth0 xdp off" and no prog is present on VSI; no need
> for that as it is handled by higher layer
> - drop the extack message for unknown xdp->command
> - use the smp_processor_id() for accessing the XDP Tx ring for XDP_TX
> action
> - don't leave the interface in downed state in case of any failure
> during the XDP Tx resources handling
> - undo rename of ice_build_ctob
> ---
> drivers/net/ethernet/intel/ice/ice.h | 24 +-
> drivers/net/ethernet/intel/ice/ice_base.c | 28 +-
> drivers/net/ethernet/intel/ice/ice_ethtool.c | 50 ++-
> drivers/net/ethernet/intel/ice/ice_lib.c | 68 +++-
> drivers/net/ethernet/intel/ice/ice_lib.h | 6 +
> drivers/net/ethernet/intel/ice/ice_main.c | 326 +++++++++++++++++
> drivers/net/ethernet/intel/ice/ice_txrx.c | 346 ++++++++++++++++---
> drivers/net/ethernet/intel/ice/ice_txrx.h | 34 +-
> 8 files changed, 825 insertions(+), 57 deletions(-)
Tested-by: Andrew Bowers <andrewx.bowers at intel.com>
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