diff options
| author | Charles McLachlan <cmclachlan@solarflare.com> | 2019-10-31 10:23:23 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-10-31 14:14:53 -0700 |
| commit | eb9a36be7f3ec414700af9a616f035eda1f1e63e (patch) | |
| tree | 07822b06a1e1cae2a4b4282ad42e1ce8e3bf0ff0 /drivers/net/ethernet/sfc/net_driver.h | |
| parent | 8c42350116fe4ad23a5a813eba367355cfe7cff5 (diff) | |
sfc: perform XDP processing on received packets
Adds a field to hold an attached xdp_prog, but never populates it (see
following patch). Also, XDP_TX support is deferred to a later patch
in the series.
Track failures of xdp_rxq_info_reg() via per-queue xdp_rxq_info_valid
flags and a per-nic xdp_rxq_info_failed flag. The per-queue flags are
needed to prevent attempts to xdp_rxq_info_unreg() structs that failed
to register. Possibly the API could be changed in the future to avoid
the need for these flags.
Signed-off-by: Charles McLachlan <cmclachlan@solarflare.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 7394d901e021..a5a5055969fb 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -369,6 +369,8 @@ struct efx_rx_page_state { * refill was triggered. * @recycle_count: RX buffer recycle counter. * @slow_fill: Timer used to defer efx_nic_generate_fill_event(). + * @xdp_rxq_info: XDP specific RX queue information. + * @xdp_rxq_info_valid: Is xdp_rxq_info valid data?. */ struct efx_rx_queue { struct efx_nic *efx; @@ -400,6 +402,8 @@ struct efx_rx_queue { unsigned int slow_fill_count; /* Statistics to supplement MAC stats */ unsigned long rx_packets; + struct xdp_rxq_info xdp_rxq_info; + bool xdp_rxq_info_valid; }; enum efx_sync_events_state { @@ -900,6 +904,7 @@ struct efx_async_filter_insertion { * @loopback_mode: Loopback status * @loopback_modes: Supported loopback mode bitmask * @loopback_selftest: Offline self-test private state + * @xdp_prog: Current XDP programme for this interface * @filter_sem: Filter table rw_semaphore, protects existence of @filter_state * @filter_state: Architecture-dependent filter table state * @rps_mutex: Protects RPS state of all channels @@ -925,6 +930,8 @@ struct efx_async_filter_insertion { * @ptp_data: PTP state data * @ptp_warned: has this NIC seen and warned about unexpected PTP events? * @vpd_sn: Serial number read from VPD + * @xdp_rxq_info_failed: Have any of the rx queues failed to initialise their + * xdp_rxq_info structures? * @monitor_work: Hardware monitor workitem * @biu_lock: BIU (bus interface unit) lock * @last_irq_cpu: Last CPU to handle a possible test interrupt. This @@ -1059,6 +1066,10 @@ struct efx_nic { u64 loopback_modes; void *loopback_selftest; + /* We access loopback_selftest immediately before running XDP, + * so we want them next to each other. + */ + struct bpf_prog __rcu *xdp_prog; struct rw_semaphore filter_sem; void *filter_state; @@ -1088,6 +1099,7 @@ struct efx_nic { bool ptp_warned; char *vpd_sn; + bool xdp_rxq_info_failed; /* The following fields may be written more often */ |