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57f7f8b6bc
linux/drivers/net/ethernet/intel/ice
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Magnus Karlsson 57f7f8b6bc ice: Use xdp_buf instead of rx_buf for xsk zero-copy 
In order to use the new xsk batched buffer allocation interface, a
pointer to an array of struct xsk_buff pointers need to be provided so
that the function can put the result of the allocation there. In the
ice driver, we already have a ring that stores pointers to
xdp_buffs. This is only used for the xsk zero-copy driver and is a
union with the structure that is used for the regular non zero-copy
path. Unfortunately, that structure is larger than the xdp_buffs
pointers which mean that there will be a stride (of 20 bytes) between
each xdp_buff pointer. And feeding this into the xsk_buff_alloc_batch
interface will not work since it assumes a regular array of xdp_buff
pointers (each 8 bytes with 0 bytes in-between them on a 64-bit
system).

To fix this, remove the xdp_buff pointer from the rx_buf union and
move it one step higher to the union above which only has pointers to
arrays in it. This solves the problem and we can directly feed the SW
ring of xdp_buff pointers straight into the allocation function in the
next patch when that interface is used. This will improve performance.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210922075613.12186-4-magnus.karlsson@gmail.com
2021-09-28 00:18:34 +02:00
..
ice_adminq_cmd.h ice: add support for set/get of driver-stored firmware parameters 2021-06-11 07:38:00 -07:00
ice_arfs.c ice: Delay netdev registration 2021-03-31 14:21:27 -07:00
ice_arfs.h ice: use static inline for dummy functions 2021-06-07 08:59:01 -07:00
ice_base.c ice: enable transmit timestamps for E810 devices 2021-06-11 08:47:41 -07:00
ice_base.h ice: Refactor ice_setup_rx_ctx 2021-06-07 08:58:56 -07:00
ice_common.c ice: register 1588 PTP clock device object for E810 devices 2021-06-11 08:47:30 -07:00
ice_common.h ice: register 1588 PTP clock device object for E810 devices 2021-06-11 08:47:30 -07:00
ice_controlq.c ice: add support for sideband messages 2021-06-11 07:38:00 -07:00
ice_controlq.h ice: add support for sideband messages 2021-06-11 07:38:00 -07:00
ice_dcb_lib.c ice: Fix a memory leak in an error handling path in 'ice_pf_dcb_cfg()' 2021-06-25 11:30:50 -07:00
ice_dcb_lib.h ice: use static inline for dummy functions 2021-06-07 08:59:01 -07:00
ice_dcb_nl.c ice: remove DCBNL_DEVRESET bit from PF state 2021-03-29 10:37:19 -07:00
ice_dcb_nl.h ice: use static inline for dummy functions 2021-06-07 08:59:01 -07:00
ice_dcb.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-17 11:08:07 -07:00
ice_dcb.h ice: replace single-element array used for C struct hack 2020-07-01 16:35:23 -07:00
ice_devids.h ice: fix define for E822 backplane device 2020-02-19 13:39:33 -08:00
ice_devlink.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-08-26 17:57:57 -07:00
ice_devlink.h ice: refactor devlink_port to be per-VSI 2020-10-09 13:14:19 -07:00
ice_ethtool_fdir.c ice: Drop leading underscores in enum ice_pf_state 2021-04-14 17:00:05 -07:00
ice_ethtool.c ethtool: extend coalesce setting uAPI with CQE mode 2021-08-24 07:38:29 -07:00
ice_fdir.c ice: Fix prototype warnings 2021-03-23 11:34:02 -07:00
ice_fdir.h ice: Add more FDIR filter type for AVF 2021-03-22 11:32:12 -07:00
ice_flex_pipe.c ice: suppress false cppcheck issues 2021-04-14 17:12:17 -07:00
ice_flex_pipe.h ice: Support to separate GTP-U uplink and downlink 2021-03-22 11:32:12 -07:00
ice_flex_type.h ice: cleanup style issues 2021-03-31 14:21:28 -07:00
ice_flow.c ice: Support RSS configure removal for AVF 2021-04-22 09:26:22 -07:00
ice_flow.h ice: Support RSS configure removal for AVF 2021-04-22 09:26:22 -07:00
ice_fltr.c ice: refactor filter functions 2020-05-21 22:10:04 -07:00
ice_fltr.h ice: refactor filter functions 2020-05-21 22:10:04 -07:00
ice_fw_update.c ice: add error message when pldmfw_flash_image fails 2021-06-07 08:59:01 -07:00
ice_fw_update.h ice: add support for flash update overwrite mask 2020-09-25 17:20:57 -07:00
ice_hw_autogen.h ice: add support for auxiliary input/output pins 2021-06-25 11:30:49 -07:00
ice_idc_int.h ice: Implement iidc operations 2021-05-28 20:11:13 -07:00
ice_idc.c ice: Correctly deal with PFs that do not support RDMA 2021-09-10 09:58:55 +01:00
ice_lag.c ice: Initialize RDMA support 2021-05-28 20:11:13 -07:00
ice_lag.h ice: Add initial support framework for LAG 2021-02-08 16:27:01 -08:00
ice_lan_tx_rx.h ice: report hash type such as L2/L3/L4 2021-06-18 08:59:46 -07:00
ice_lib.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-18 19:47:02 -07:00
ice_lib.h ice: enable receive hardware timestamping 2021-06-11 08:47:41 -07:00
ice_main.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-08-31 09:06:04 -07:00
ice_nvm.c ice: suppress false cppcheck issues 2021-04-14 17:12:17 -07:00
ice_nvm.h ice: display stored UNDI firmware version via devlink info 2021-02-05 11:44:16 -08:00
ice_osdep.h
ice_protocol_type.h ice: Add more advanced protocol support in flow filter 2021-03-22 11:32:12 -07:00
ice_ptp_hw.c ice: remove redundant continue statement in a for-loop 2021-06-17 09:25:06 -07:00
ice_ptp_hw.h ice: add low level PTP clock access functions 2021-06-11 07:38:00 -07:00
ice_ptp.c ice: restart periodic outputs around time changes 2021-08-27 13:14:41 -07:00
ice_ptp.h ice: add support for auxiliary input/output pins 2021-06-25 11:30:49 -07:00
ice_sbq_cmd.h ice: add support for sideband messages 2021-06-11 07:38:00 -07:00
ice_sched.c ice: remove the VSI info from previous agg 2021-06-25 11:30:49 -07:00
ice_sched.h ice: Use PSM clock frequency to calculate RL profiles 2021-02-08 16:27:01 -08:00
ice_sriov.c ice: warn about potentially malicious VFs 2021-04-22 09:26:22 -07:00
ice_sriov.h ice: warn about potentially malicious VFs 2021-04-22 09:26:22 -07:00
ice_status.h ice: display stored netlist versions via devlink info 2021-02-05 11:43:37 -08:00
ice_switch.c ice: Implement iidc operations 2021-05-28 20:11:13 -07:00
ice_switch.h ice: Remove the repeated declaration 2021-06-17 09:19:59 -07:00
ice_trace.h ice: add tracepoints 2021-06-25 08:32:18 -07:00
ice_txrx_lib.c ice: report hash type such as L2/L3/L4 2021-06-18 08:59:46 -07:00
ice_txrx_lib.h ice: report hash type such as L2/L3/L4 2021-06-18 08:59:46 -07:00
ice_txrx.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-06-28 15:28:03 -07:00
ice_txrx.h ice: Use xdp_buf instead of rx_buf for xsk zero-copy 2021-09-28 00:18:34 +02:00
ice_type.h ice: add low level PTP clock access functions 2021-06-11 07:38:00 -07:00
ice_virtchnl_allowlist.c ice: Enable RSS configure for AVF 2021-04-22 09:26:22 -07:00
ice_virtchnl_allowlist.h ice: Allow ignoring opcodes on specific VF 2021-04-22 09:26:22 -07:00
ice_virtchnl_fdir.c ice: Drop leading underscores in enum ice_pf_state 2021-04-14 17:00:05 -07:00
ice_virtchnl_fdir.h ice: Check FDIR program status for AVF 2021-03-22 11:32:12 -07:00
ice_virtchnl_pf.c ice: Stop processing VF messages during teardown 2021-08-09 09:59:23 -07:00
ice_virtchnl_pf.h ice: use static inline for dummy functions 2021-06-07 08:59:01 -07:00
ice_xsk.c ice: Use xdp_buf instead of rx_buf for xsk zero-copy 2021-09-28 00:18:34 +02:00
ice_xsk.h ice: use static inline for dummy functions 2021-06-07 08:59:01 -07:00
ice.h ice: Correctly deal with PFs that do not support RDMA 2021-09-10 09:58:55 +01:00
Makefile ice: register 1588 PTP clock device object for E810 devices 2021-06-11 08:47:30 -07:00