diff options
| author | Edward Cree <ecree.xilinx@gmail.com> | 2022-09-26 19:57:36 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-09-28 09:43:22 +0100 |
| commit | d902e1a737d44e678eeb981df11c842c2cc1db74 (patch) | |
| tree | c10d2d1129abd5d32d75c6b7171b1a035ce55186 /drivers/net/ethernet/sfc/mcdi.h | |
| parent | 7ce3e235f21268905864fd9bcf71a026db045588 (diff) | |
| download | linux-d902e1a737d44e678eeb981df11c842c2cc1db74.tar.bz2 | |
sfc: bare bones TC offload on EF100
This is the absolute minimum viable TC implementation to get traffic to
VFs and allow them to be tested; it supports no match fields besides
ingress port, no actions besides mirred and drop, and no stats.
Example usage:
tc filter add dev $PF parent ffff: flower skip_sw \
action mirred egress mirror dev $VFREP
tc filter add dev $VFREP parent ffff: flower skip_sw \
action mirred egress redirect dev $PF
gives a VF unfiltered access to the network out the physical port ($PF
acts here as a physical port representor).
More matches, actions, and counters will be added in subsequent patches.
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/mcdi.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/mcdi.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h index 26bc69f76801..1f18e9dc62e8 100644 --- a/drivers/net/ethernet/sfc/mcdi.h +++ b/drivers/net/ethernet/sfc/mcdi.h @@ -201,6 +201,12 @@ void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev); ((u8 *)(_buf) + (_offset)) #define MCDI_PTR(_buf, _field) \ _MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST) +/* Use MCDI_STRUCT_ functions to access members of MCDI structuredefs. + * _buf should point to the start of the structure, typically obtained with + * MCDI_DECLARE_STRUCT_PTR(structure) = _MCDI_DWORD(mcdi_buf, FIELD_WHICH_IS_STRUCT); + */ +#define MCDI_STRUCT_PTR(_buf, _field) \ + _MCDI_PTR(_buf, _field ## _OFST) #define _MCDI_CHECK_ALIGN(_ofst, _align) \ ((_ofst) + BUILD_BUG_ON_ZERO((_ofst) & (_align - 1))) #define _MCDI_DWORD(_buf, _field) \ @@ -208,6 +214,10 @@ void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev); #define _MCDI_STRUCT_DWORD(_buf, _field) \ ((_buf) + (_MCDI_CHECK_ALIGN(_field ## _OFST, 4) >> 2)) +#define MCDI_STRUCT_SET_BYTE(_buf, _field, _value) do { \ + BUILD_BUG_ON(_field ## _LEN != 1); \ + *(u8 *)MCDI_STRUCT_PTR(_buf, _field) = _value; \ + } while (0) #define MCDI_BYTE(_buf, _field) \ ((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 1), \ *MCDI_PTR(_buf, _field)) |