/* * To support clients which aren't provided with any PCI context infer * the hardware family by inspecting the hardware. Obviously the caller * must be damn sure they're really talking to a supported device. */ __checkReturn int efx_infer_family( __in efsys_bar_t *esbp, __out efx_family_t *efp) { efx_family_t family; efx_oword_t oword; unsigned int portnum; int rc; EFSYS_BAR_READO(esbp, FR_AZ_CS_DEBUG_REG_OFST, &oword, B_TRUE); portnum = EFX_OWORD_FIELD(oword, FRF_CZ_CS_PORT_NUM); switch (portnum) { case 0: { efx_dword_t dword; uint32_t hw_rev; EFSYS_BAR_READD(esbp, ER_DZ_BIU_HW_REV_ID_REG_OFST, &dword, B_TRUE); hw_rev = EFX_DWORD_FIELD(dword, ERF_DZ_HW_REV_ID); if (hw_rev == ER_DZ_BIU_HW_REV_ID_REG_RESET) { #if EFSYS_OPT_HUNTINGTON family = EFX_FAMILY_HUNTINGTON; break; #endif } else { #if EFSYS_OPT_FALCON family = EFX_FAMILY_FALCON; break; #endif } rc = ENOTSUP; goto fail1; } #if EFSYS_OPT_SIENA case 1: case 2: family = EFX_FAMILY_SIENA; break; #endif default: rc = ENOTSUP; goto fail1; } if (efp != NULL) *efp = family; return (0); fail1: EFSYS_PROBE1(fail1, int, rc); return (rc); }
/* * To support clients which aren't provided with any PCI context infer * the hardware family by inspecting the hardware. Obviously the caller * must be damn sure they're really talking to a supported device. */ __checkReturn efx_rc_t efx_infer_family( __in efsys_bar_t *esbp, __out efx_family_t *efp) { efx_family_t family; efx_oword_t oword; unsigned int portnum; efx_rc_t rc; EFSYS_BAR_READO(esbp, FR_AZ_CS_DEBUG_REG_OFST, &oword, B_TRUE); portnum = EFX_OWORD_FIELD(oword, FRF_CZ_CS_PORT_NUM); if ((portnum == 1) || (portnum == 2)) { #if EFSYS_OPT_SIENA family = EFX_FAMILY_SIENA; goto out; #endif } else if (portnum == 0) { efx_dword_t dword; uint32_t hw_rev; EFSYS_BAR_READD(esbp, ER_DZ_BIU_HW_REV_ID_REG_OFST, &dword, B_TRUE); hw_rev = EFX_DWORD_FIELD(dword, ERF_DZ_HW_REV_ID); if (hw_rev == ER_DZ_BIU_HW_REV_ID_REG_RESET) { #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD /* * BIU_HW_REV_ID is the same for Huntington and Medford. * Assume Huntington, as Medford is very similar. */ family = EFX_FAMILY_HUNTINGTON; goto out; #endif } else { #if EFSYS_OPT_FALCON family = EFX_FAMILY_FALCON; goto out; #endif } } rc = ENOTSUP; goto fail1; out: if (efp != NULL) *efp = family; return (0); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); }