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| author | Ben Hutchings | 2012-09-14 18:30:44 +0200 |
|---|---|---|
| committer | Ben Hutchings | 2013-08-21 17:35:22 +0200 |
| commit | 30af691066dccba9d5e44c6656030faec25458be (patch) | |
| tree | 297ddc493e9fc3133bc2c71c0bd5c77516e90efd | |
| parent | sfc: Introduce and use MCDI_DECLARE_BUF macro (diff) | |
| download | kernel-qcow2-linux-30af691066dccba9d5e44c6656030faec25458be.tar.gz kernel-qcow2-linux-30af691066dccba9d5e44c6656030faec25458be.tar.xz kernel-qcow2-linux-30af691066dccba9d5e44c6656030faec25458be.zip | |
sfc: Rationalise MCDI buffer accessors
Add _MCDI_DWORD() which yields an lvalue for the given dword field
and change MCDI_DWORD(), MCDI_SET_DWORD() and MCDI_QWORD() to use it.
Fold the rather trivial MCDI_PTR2() into MCDI_PTR() and _MCDI_DWORD().
Remove MCDI_SET_DWORD2() and MCDI_QWORD2(). MCDI_DWORD2() should also
go, but it still has one user which we'll get rid of later.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| -rw-r--r-- | drivers/net/ethernet/sfc/mcdi.h | 46 |
1 files changed, 20 insertions, 26 deletions
diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h index c881118c10b8..03fb6c0651e8 100644 --- a/drivers/net/ethernet/sfc/mcdi.h +++ b/drivers/net/ethernet/sfc/mcdi.h @@ -87,34 +87,25 @@ extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev); #define MCDI_DECLARE_BUF(_name, _len) \ u8 _name[ALIGN(_len, 4)] +#define MCDI_PTR(_buf, _field) \ + ((u8 *)(_buf) + MC_CMD_ ## _field ## _OFST) +#define _MCDI_DWORD(_buf, _field) \ + ((efx_dword_t *)MCDI_PTR(_buf, _field)) + +#define MCDI_DWORD2(_buf, _ofst) \ + EFX_DWORD_FIELD(*(efx_dword_t *)((u8 *)(_buf) + (_ofst)), EFX_DWORD_0) + +#define MCDI_SET_DWORD(_buf, _field, _value) \ + EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value) +#define MCDI_DWORD(_buf, _field) \ + EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0) +#define MCDI_QWORD(_buf, _field) \ + (EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], EFX_DWORD_0) | \ + (u64)EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], EFX_DWORD_0) << 32) -#define MCDI_PTR2(_buf, _ofst) \ - (((u8 *)_buf) + _ofst) -#define MCDI_SET_DWORD2(_buf, _ofst, _value) \ - EFX_POPULATE_DWORD_1(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \ - EFX_DWORD_0, _value) -#define MCDI_DWORD2(_buf, _ofst) \ - EFX_DWORD_FIELD(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \ - EFX_DWORD_0) -#define MCDI_QWORD2(_buf, _ofst) \ - EFX_QWORD_FIELD64(*((efx_qword_t *)MCDI_PTR2(_buf, _ofst)), \ - EFX_QWORD_0) - -#define MCDI_PTR(_buf, _ofst) \ - MCDI_PTR2(_buf, MC_CMD_ ## _ofst ## _OFST) #define MCDI_ARRAY_PTR(_buf, _field, _type, _index) \ - MCDI_PTR2(_buf, \ - MC_CMD_ ## _field ## _OFST + \ - (_index) * MC_CMD_ ## _type ## _TYPEDEF_LEN) -#define MCDI_SET_DWORD(_buf, _ofst, _value) \ - MCDI_SET_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST, _value) -#define MCDI_DWORD(_buf, _ofst) \ - MCDI_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST) -#define MCDI_QWORD(_buf, _ofst) \ - MCDI_QWORD2(_buf, MC_CMD_ ## _ofst ## _OFST) - -#define MCDI_EVENT_FIELD(_ev, _field) \ - EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field) + (MCDI_PTR(_buf, _field) + \ + (_index) * MC_CMD_ ## _type ## _TYPEDEF_LEN) #define MCDI_ARRAY_FIELD(_buf, _field1, _type, _index, _field2) \ EFX_EXTRACT_DWORD( \ *((efx_dword_t *) \ @@ -124,6 +115,9 @@ extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev); (MC_CMD_ ## _type ## _TYPEDEF_ ## _field2 ## _LBN & 0x1f) + \ MC_CMD_ ## _type ## _TYPEDEF_ ## _field2 ## _WIDTH - 1) +#define MCDI_EVENT_FIELD(_ev, _field) \ + EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field) + extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len); extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating, bool *was_attached_out); |