Author: arybchik Date: Mon Jan 18 06:19:28 2016 New Revision: 294253 URL: https://svnweb.freebsd.org/changeset/base/294253
Log: sfxge: if supported by firmware, use enhanced SET_MAC command to only configure the MTU This allows an MTU change to be requested on unpriviliged functions without also setting all the other parameters supported by MC_CMD_SET_MAC. The enhanced SET_MAC command was introduced in v4_7 firmware. Submitted by: Mark Spender <mspender at solarflare.com> Sponsored by: Solarflare Communications, Inc. MFC after: 2 days Differential Revision: https://reviews.freebsd.org/D4958 Modified: head/sys/dev/sfxge/common/efx.h head/sys/dev/sfxge/common/efx_impl.h head/sys/dev/sfxge/common/efx_mac.c head/sys/dev/sfxge/common/hunt_impl.h head/sys/dev/sfxge/common/hunt_mac.c head/sys/dev/sfxge/common/hunt_nic.c Modified: head/sys/dev/sfxge/common/efx.h ============================================================================== --- head/sys/dev/sfxge/common/efx.h Mon Jan 18 06:18:01 2016 (r294252) +++ head/sys/dev/sfxge/common/efx.h Mon Jan 18 06:19:28 2016 (r294253) @@ -1159,6 +1159,7 @@ typedef struct efx_nic_cfg_s { boolean_t enc_datapath_cap_evb; boolean_t enc_rx_disable_scatter_supported; boolean_t enc_allow_set_mac_with_installed_filters; + boolean_t enc_enhanced_set_mac_supported; /* External port identifier */ uint8_t enc_external_port; uint32_t enc_mcdi_max_payload_length; Modified: head/sys/dev/sfxge/common/efx_impl.h ============================================================================== --- head/sys/dev/sfxge/common/efx_impl.h Mon Jan 18 06:18:01 2016 (r294252) +++ head/sys/dev/sfxge/common/efx_impl.h Mon Jan 18 06:19:28 2016 (r294253) @@ -194,6 +194,7 @@ typedef struct efx_mac_ops_s { efx_rc_t (*emo_poll)(efx_nic_t *, efx_link_mode_t *); efx_rc_t (*emo_up)(efx_nic_t *, boolean_t *); efx_rc_t (*emo_addr_set)(efx_nic_t *); + efx_rc_t (*emo_pdu_set)(efx_nic_t *); efx_rc_t (*emo_reconfigure)(efx_nic_t *); efx_rc_t (*emo_multicast_list_set)(efx_nic_t *); efx_rc_t (*emo_filter_default_rxq_set)(efx_nic_t *, Modified: head/sys/dev/sfxge/common/efx_mac.c ============================================================================== --- head/sys/dev/sfxge/common/efx_mac.c Mon Jan 18 06:18:01 2016 (r294252) +++ head/sys/dev/sfxge/common/efx_mac.c Mon Jan 18 06:19:28 2016 (r294253) @@ -56,6 +56,7 @@ static efx_mac_ops_t __efx_falcon_gmac_o falcon_mac_poll, /* emo_poll */ falcon_mac_up, /* emo_up */ falcon_gmac_reconfigure, /* emo_addr_set */ + falcon_gmac_reconfigure, /* emo_pdu_set */ falcon_gmac_reconfigure, /* emo_reconfigure */ falconsiena_mac_multicast_list_set, /* emo_multicast_list_set */ NULL, /* emo_filter_set_default_rxq */ @@ -77,6 +78,7 @@ static efx_mac_ops_t __efx_falcon_xmac_o falcon_mac_poll, /* emo_poll */ falcon_mac_up, /* emo_up */ falcon_xmac_reconfigure, /* emo_addr_set */ + falcon_xmac_reconfigure, /* emo_pdu_set */ falcon_xmac_reconfigure, /* emo_reconfigure */ falconsiena_mac_multicast_list_set, /* emo_multicast_list_set */ NULL, /* emo_filter_set_default_rxq */ @@ -98,6 +100,7 @@ static efx_mac_ops_t __efx_siena_mac_ops siena_mac_poll, /* emo_poll */ siena_mac_up, /* emo_up */ siena_mac_reconfigure, /* emo_addr_set */ + siena_mac_reconfigure, /* emo_pdu_set */ siena_mac_reconfigure, /* emo_reconfigure */ falconsiena_mac_multicast_list_set, /* emo_multicast_list_set */ NULL, /* emo_filter_set_default_rxq */ @@ -119,6 +122,7 @@ static efx_mac_ops_t __efx_ef10_mac_ops ef10_mac_poll, /* emo_poll */ ef10_mac_up, /* emo_up */ ef10_mac_addr_set, /* emo_addr_set */ + ef10_mac_pdu_set, /* emo_pdu_set */ ef10_mac_reconfigure, /* emo_reconfigure */ ef10_mac_multicast_list_set, /* emo_multicast_list_set */ ef10_mac_filter_default_rxq_set, /* emo_filter_default_rxq_set */ @@ -196,7 +200,7 @@ efx_mac_pdu_set( old_pdu = epp->ep_mac_pdu; epp->ep_mac_pdu = (uint32_t)pdu; - if ((rc = emop->emo_reconfigure(enp)) != 0) + if ((rc = emop->emo_pdu_set(enp)) != 0) goto fail3; return (0); Modified: head/sys/dev/sfxge/common/hunt_impl.h ============================================================================== --- head/sys/dev/sfxge/common/hunt_impl.h Mon Jan 18 06:18:01 2016 (r294252) +++ head/sys/dev/sfxge/common/hunt_impl.h Mon Jan 18 06:19:28 2016 (r294253) @@ -234,6 +234,10 @@ ef10_mac_addr_set( __in efx_nic_t *enp); extern __checkReturn efx_rc_t +ef10_mac_pdu_set( + __in efx_nic_t *enp); + +extern __checkReturn efx_rc_t ef10_mac_reconfigure( __in efx_nic_t *enp); Modified: head/sys/dev/sfxge/common/hunt_mac.c ============================================================================== --- head/sys/dev/sfxge/common/hunt_mac.c Mon Jan 18 06:18:01 2016 (r294252) +++ head/sys/dev/sfxge/common/hunt_mac.c Mon Jan 18 06:19:28 2016 (r294253) @@ -162,6 +162,74 @@ fail1: return (rc); } +static __checkReturn efx_rc_t +efx_mcdi_mtu_set( + __in efx_nic_t *enp, + __in uint32_t mtu) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_SET_MAC_EXT_IN_LEN, + MC_CMD_SET_MAC_OUT_LEN)]; + efx_rc_t rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_SET_MAC; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_SET_MAC_EXT_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_SET_MAC_OUT_LEN; + + /* Only configure the MTU in this call to MC_CMD_SET_MAC */ + MCDI_IN_SET_DWORD(req, SET_MAC_EXT_IN_MTU, mtu); + MCDI_IN_POPULATE_DWORD_1(req, SET_MAC_EXT_IN_CONTROL, + SET_MAC_EXT_IN_CFG_MTU, 1); + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_mac_pdu_set( + __in efx_nic_t *enp) +{ + efx_port_t *epp = &(enp->en_port); + efx_nic_cfg_t *encp = &(enp->en_nic_cfg); + efx_rc_t rc; + + if (encp->enc_enhanced_set_mac_supported) { + if ((rc = efx_mcdi_mtu_set(enp, epp->ep_mac_pdu)) != 0) + goto fail1; + } else { + /* + * Fallback for older Huntington firmware, which always + * configure all of the parameters to MC_CMD_SET_MAC. This isn't + * suitable for setting the MTU on unpriviliged functions. + */ + if ((rc = ef10_mac_reconfigure(enp)) != 0) + goto fail2; + } + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + __checkReturn efx_rc_t ef10_mac_reconfigure( __in efx_nic_t *enp) Modified: head/sys/dev/sfxge/common/hunt_nic.c ============================================================================== --- head/sys/dev/sfxge/common/hunt_nic.c Mon Jan 18 06:18:01 2016 (r294252) +++ head/sys/dev/sfxge/common/hunt_nic.c Mon Jan 18 06:19:28 2016 (r294253) @@ -951,6 +951,13 @@ ef10_get_datapath_caps( CAP_FLAG(flags, VADAPTOR_PERMIT_SET_MAC_WHEN_FILTERS_INSTALLED) ? B_TRUE : B_FALSE; + /* + * Check if firmware supports the extended MC_CMD_SET_MAC, which allows + * specifying which parameters to configure. + */ + encp->enc_enhanced_set_mac_supported = + CAP_FLAG(flags, SET_MAC_ENHANCED) ? B_TRUE : B_FALSE; + #undef CAP_FLAG #undef CAP_FLAG2 _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
