diff options
Diffstat (limited to 'sys/dev/sfxge/common/efx_mcdi.c')
| -rw-r--r-- | sys/dev/sfxge/common/efx_mcdi.c | 166 |
1 files changed, 134 insertions, 32 deletions
diff --git a/sys/dev/sfxge/common/efx_mcdi.c b/sys/dev/sfxge/common/efx_mcdi.c index 07224c7..9f7a9ff 100644 --- a/sys/dev/sfxge/common/efx_mcdi.c +++ b/sys/dev/sfxge/common/efx_mcdi.c @@ -36,13 +36,32 @@ __FBSDID("$FreeBSD$"); #if EFSYS_OPT_MCDI +/* + * There are three versions of the MCDI interface: + * - MCDIv0: Siena BootROM. Transport uses MCDIv1 headers. + * - MCDIv1: Siena firmware and Huntington BootROM. + * - MCDIv2: EF10 firmware (Huntington/Medford) and Medford BootROM. + * Transport uses MCDIv2 headers. + * + * MCDIv2 Header NOT_EPOCH flag + * ---------------------------- + * A new epoch begins at initial startup or after an MC reboot, and defines when + * the MC should reject stale MCDI requests. + * + * The first MCDI request sent by the host should contain NOT_EPOCH=0, and all + * subsequent requests (until the next MC reboot) should contain NOT_EPOCH=1. + * + * After rebooting the MC will fail all requests with NOT_EPOCH=1 by writing a + * response with ERROR=1 and DATALEN=0 until a request is seen with NOT_EPOCH=0. + */ + + #if EFSYS_OPT_SIENA static efx_mcdi_ops_t __efx_mcdi_siena_ops = { siena_mcdi_init, /* emco_init */ - siena_mcdi_request_copyin, /* emco_request_copyin */ - siena_mcdi_request_copyout, /* emco_request_copyout */ + siena_mcdi_send_request, /* emco_send_request */ siena_mcdi_poll_reboot, /* emco_poll_reboot */ siena_mcdi_poll_response, /* emco_poll_response */ siena_mcdi_read_response, /* emco_read_response */ @@ -56,8 +75,7 @@ static efx_mcdi_ops_t __efx_mcdi_siena_ops = { static efx_mcdi_ops_t __efx_mcdi_ef10_ops = { ef10_mcdi_init, /* emco_init */ - ef10_mcdi_request_copyin, /* emco_request_copyin */ - ef10_mcdi_request_copyout, /* emco_request_copyout */ + ef10_mcdi_send_request, /* emco_send_request */ ef10_mcdi_poll_reboot, /* emco_poll_reboot */ ef10_mcdi_poll_response, /* emco_poll_response */ ef10_mcdi_read_response, /* emco_read_response */ @@ -179,26 +197,16 @@ efx_mcdi_new_epoch( } static void -efx_mcdi_request_copyin( +efx_mcdi_send_request( __in efx_nic_t *enp, - __in efx_mcdi_req_t *emrp, - __in unsigned int seq, - __in boolean_t ev_cpl, - __in boolean_t new_epoch) -{ - efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop; - - emcop->emco_request_copyin(enp, emrp, seq, ev_cpl, new_epoch); -} - -static void -efx_mcdi_request_copyout( - __in efx_nic_t *enp, - __in efx_mcdi_req_t *emrp) + __in void *hdrp, + __in size_t hdr_len, + __in void *sdup, + __in size_t sdu_len) { efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop; - emcop->emco_request_copyout(enp, emrp); + emcop->emco_send_request(enp, hdrp, hdr_len, sdup, sdu_len); } static efx_rc_t @@ -241,8 +249,15 @@ efx_mcdi_request_start( __in efx_mcdi_req_t *emrp, __in boolean_t ev_cpl) { +#if EFSYS_OPT_MCDI_LOGGING + const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp; +#endif efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip); + efx_dword_t hdr[2]; + size_t hdr_len; + unsigned int max_version; unsigned int seq; + unsigned int xflags; boolean_t new_epoch; int state; @@ -269,13 +284,64 @@ efx_mcdi_request_start( emip->emi_poll_cnt = 0; seq = emip->emi_seq++ & EFX_MASK32(MCDI_HEADER_SEQ); new_epoch = emip->emi_new_epoch; + max_version = emip->emi_max_version; EFSYS_UNLOCK(enp->en_eslp, state); - efx_mcdi_request_copyin(enp, emrp, seq, ev_cpl, new_epoch); + xflags = 0; + if (ev_cpl) + xflags |= MCDI_HEADER_XFLAGS_EVREQ; + + /* + * Huntington firmware supports MCDIv2, but the Huntington BootROM only + * supports MCDIv1. Use MCDIv1 headers for MCDIv1 commands where + * possible to support this. + */ + if ((max_version >= 2) && + ((emrp->emr_cmd > MC_CMD_CMD_SPACE_ESCAPE_7) || + (emrp->emr_in_length > MCDI_CTL_SDU_LEN_MAX_V1))) { + /* Construct MCDI v2 header */ + hdr_len = sizeof (hdr); + EFX_POPULATE_DWORD_8(hdr[0], + MCDI_HEADER_CODE, MC_CMD_V2_EXTN, + MCDI_HEADER_RESYNC, 1, + MCDI_HEADER_DATALEN, 0, + MCDI_HEADER_SEQ, seq, + MCDI_HEADER_NOT_EPOCH, new_epoch ? 0 : 1, + MCDI_HEADER_ERROR, 0, + MCDI_HEADER_RESPONSE, 0, + MCDI_HEADER_XFLAGS, xflags); + + EFX_POPULATE_DWORD_2(hdr[1], + MC_CMD_V2_EXTN_IN_EXTENDED_CMD, emrp->emr_cmd, + MC_CMD_V2_EXTN_IN_ACTUAL_LEN, emrp->emr_in_length); + } else { + /* Construct MCDI v1 header */ + hdr_len = sizeof (hdr[0]); + EFX_POPULATE_DWORD_8(hdr[0], + MCDI_HEADER_CODE, emrp->emr_cmd, + MCDI_HEADER_RESYNC, 1, + MCDI_HEADER_DATALEN, emrp->emr_in_length, + MCDI_HEADER_SEQ, seq, + MCDI_HEADER_NOT_EPOCH, new_epoch ? 0 : 1, + MCDI_HEADER_ERROR, 0, + MCDI_HEADER_RESPONSE, 0, + MCDI_HEADER_XFLAGS, xflags); + } + +#if EFSYS_OPT_MCDI_LOGGING + if (emtp->emt_logger != NULL) { + emtp->emt_logger(emtp->emt_context, EFX_LOG_MCDI_REQUEST, + &hdr, hdr_len, + emrp->emr_in_buf, emrp->emr_in_length); + } +#endif /* EFSYS_OPT_MCDI_LOGGING */ + + efx_mcdi_send_request(enp, &hdr[0], hdr_len, + emrp->emr_in_buf, emrp->emr_in_length); } - void +static void efx_mcdi_read_response_header( __in efx_nic_t *enp, __inout efx_mcdi_req_t *emrp) @@ -384,19 +450,56 @@ efx_mcdi_read_response_header( return; fail3: - if (!emrp->emr_quiet) - EFSYS_PROBE(fail3); fail2: - if (!emrp->emr_quiet) - EFSYS_PROBE(fail2); fail1: - if (!emrp->emr_quiet) - EFSYS_PROBE1(fail1, efx_rc_t, rc); - emrp->emr_rc = rc; emrp->emr_out_length_used = 0; } +static void +efx_mcdi_finish_response( + __in efx_nic_t *enp, + __in efx_mcdi_req_t *emrp) +{ +#if EFSYS_OPT_MCDI_LOGGING + const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp; +#endif /* EFSYS_OPT_MCDI_LOGGING */ + efx_dword_t hdr[2]; + unsigned int hdr_len; + size_t bytes; + + if (emrp->emr_out_buf == NULL) + return; + + /* Read the command header to detect MCDI response format */ + hdr_len = sizeof (hdr[0]); + efx_mcdi_read_response(enp, &hdr[0], 0, hdr_len); + if (EFX_DWORD_FIELD(hdr[0], MCDI_HEADER_CODE) == MC_CMD_V2_EXTN) { + /* + * Read the actual payload length. The length given in the event + * is only correct for responses with the V1 format. + */ + efx_mcdi_read_response(enp, &hdr[1], hdr_len, sizeof (hdr[1])); + hdr_len += sizeof (hdr[1]); + + emrp->emr_out_length_used = EFX_DWORD_FIELD(hdr[1], + MC_CMD_V2_EXTN_IN_ACTUAL_LEN); + } + + /* Copy payload out into caller supplied buffer */ + bytes = MIN(emrp->emr_out_length_used, emrp->emr_out_length); + efx_mcdi_read_response(enp, emrp->emr_out_buf, hdr_len, bytes); + +#if EFSYS_OPT_MCDI_LOGGING + if (emtp->emt_logger != NULL) { + emtp->emt_logger(emtp->emt_context, + EFX_LOG_MCDI_RESPONSE, + &hdr, hdr_len, + emrp->emr_out_buf, bytes); + } +#endif /* EFSYS_OPT_MCDI_LOGGING */ +} + __checkReturn boolean_t efx_mcdi_request_poll( @@ -444,7 +547,7 @@ efx_mcdi_request_poll( if ((rc = emrp->emr_rc) != 0) goto fail2; - efx_mcdi_request_copyout(enp, emrp); + efx_mcdi_finish_response(enp, emrp); return (B_TRUE); fail2: @@ -638,7 +741,6 @@ efx_mcdi_ev_cpl( { efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip); const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp; - efx_mcdi_ops_t *emcop = enp->en_mcdi.em_emcop; efx_mcdi_req_t *emrp; int state; @@ -680,7 +782,7 @@ efx_mcdi_ev_cpl( } } if (errcode == 0) { - emcop->emco_request_copyout(enp, emrp); + efx_mcdi_finish_response(enp, emrp); } emtp->emt_ev_cpl(emtp->emt_context); |
