diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/mae.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/mae.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/mae.c b/drivers/net/ethernet/sfc/mae.c new file mode 100644 index 000000000000..011ebd46ada5 --- /dev/null +++ b/drivers/net/ethernet/sfc/mae.c @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0-only +/**************************************************************************** + * Driver for Solarflare network controllers and boards + * Copyright 2019 Solarflare Communications Inc. + * Copyright 2020-2022 Xilinx Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation, incorporated herein by reference. + */ + +#include "mae.h" +#include "mcdi.h" +#include "mcdi_pcol.h" + +void efx_mae_mport_vf(struct efx_nic *efx __always_unused, u32 vf_id, u32 *out) +{ + efx_dword_t mport; + + EFX_POPULATE_DWORD_3(mport, + MAE_MPORT_SELECTOR_TYPE, MAE_MPORT_SELECTOR_TYPE_FUNC, + MAE_MPORT_SELECTOR_FUNC_PF_ID, MAE_MPORT_SELECTOR_FUNC_PF_ID_CALLER, + MAE_MPORT_SELECTOR_FUNC_VF_ID, vf_id); + *out = EFX_DWORD_VAL(mport); +} + +/* id is really only 24 bits wide */ +int efx_mae_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id) +{ + MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_MPORT_LOOKUP_OUT_LEN); + MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_LOOKUP_IN_LEN); + size_t outlen; + int rc; + + MCDI_SET_DWORD(inbuf, MAE_MPORT_LOOKUP_IN_MPORT_SELECTOR, selector); + rc = efx_mcdi_rpc(efx, MC_CMD_MAE_MPORT_LOOKUP, inbuf, sizeof(inbuf), + outbuf, sizeof(outbuf), &outlen); + if (rc) + return rc; + if (outlen < sizeof(outbuf)) + return -EIO; + *id = MCDI_DWORD(outbuf, MAE_MPORT_LOOKUP_OUT_MPORT_ID); + return 0; +} |