/* * Copyright (c) 2012-2015 Solarflare Communications Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation are * those of the authors and should not be interpreted as representing official * policies, either expressed or implied, of the FreeBSD Project. */ #include "efx.h" #include "efx_impl.h" #if EFSYS_OPT_MON_MCDI #include "mcdi_mon.h" #endif #if EFSYS_OPT_HUNTINGTON __checkReturn efx_rc_t hunt_board_cfg( __in efx_nic_t *enp) { efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip); efx_nic_cfg_t *encp = &(enp->en_nic_cfg); uint8_t mac_addr[6] = { 0 }; uint32_t board_type = 0; ef10_link_state_t els; efx_port_t *epp = &(enp->en_port); uint32_t port; uint32_t pf; uint32_t vf; uint32_t mask; uint32_t flags; uint32_t sysclk; uint32_t base, nvec; efx_rc_t rc; if ((rc = efx_mcdi_get_port_assignment(enp, &port)) != 0) goto fail1; /* * NOTE: The MCDI protocol numbers ports from zero. * The common code MCDI interface numbers ports from one. */ emip->emi_port = port + 1; if ((rc = ef10_external_port_mapping(enp, port, &encp->enc_external_port)) != 0) goto fail2; /* * Get PCIe function number from firmware (used for * per-function privilege and dynamic config info). * - PCIe PF: pf = PF number, vf = 0xffff. * - PCIe VF: pf = parent PF, vf = VF number. */ if ((rc = efx_mcdi_get_function_info(enp, &pf, &vf)) != 0) goto fail3; encp->enc_pf = pf; encp->enc_vf = vf; /* MAC address for this function */ if (EFX_PCI_FUNCTION_IS_PF(encp)) { rc = efx_mcdi_get_mac_address_pf(enp, mac_addr); if ((rc == 0) && (mac_addr[0] & 0x02)) { /* * If the static config does not include a global MAC * address pool then the board may return a locally * administered MAC address (this should only happen on * incorrectly programmed boards). */ rc = EINVAL; } } else { rc = efx_mcdi_get_mac_address_vf(enp, mac_addr); } if (rc != 0) goto fail4; EFX_MAC_ADDR_COPY(encp->enc_mac_addr, mac_addr); /* Board configuration */ rc = efx_mcdi_get_board_cfg(enp, &board_type, NULL, NULL); if (rc != 0) { /* Unprivileged functions may not be able to read board cfg */ if (rc == EACCES) board_type = 0; else goto fail5; } encp->enc_board_type = board_type; encp->enc_clk_mult = 1; /* not used for Huntington */ /* Fill out fields in enp->en_port and enp->en_nic_cfg from MCDI */ if ((rc = efx_mcdi_get_phy_cfg(enp)) != 0) goto fail6; /* Obtain the default PHY advertised capabilities */ if ((rc = ef10_phy_get_link(enp, &els)) != 0) goto fail7; epp->ep_default_adv_cap_mask = els.els_adv_cap_mask; epp->ep_adv_cap_mask = els.els_adv_cap_mask; /* * Enable firmware workarounds for hardware errata. * Expected responses are: * - 0 (zero): * Success: workaround enabled or disabled as requested. * - MC_CMD_ERR_ENOSYS (reported as ENOTSUP): * Firmware does not support the MC_CMD_WORKAROUND request. * (assume that the workaround is not supported). * - MC_CMD_ERR_ENOENT (reported as ENOENT): * Firmware does not support the requested workaround. * - MC_CMD_ERR_EPERM (reported as EACCES): * Unprivileged function cannot enable/disable workarounds. * * See efx_mcdi_request_errcode() for MCDI error translations. */ /* * If the bug35388 workaround is enabled, then use an indirect access * method to avoid unsafe EVQ writes. */ rc = efx_mcdi_set_workaround(enp, MC_CMD_WORKAROUND_BUG35388, B_TRUE, NULL); if ((rc == 0) || (rc == EACCES)) encp->enc_bug35388_workaround = B_TRUE; else if ((rc == ENOTSUP) || (rc == ENOENT)) encp->enc_bug35388_workaround = B_FALSE; else goto fail8; /* * If the bug41750 workaround is enabled, then do not test interrupts, * as the test will fail (seen with Greenport controllers). */ rc = efx_mcdi_set_workaround(enp, MC_CMD_WORKAROUND_BUG41750, B_TRUE, NULL); if (rc == 0) { encp->enc_bug41750_workaround = B_TRUE; } else if (rc == EACCES) { /* Assume a controller with 40G ports needs the workaround. */ if (epp->ep_default_adv_cap_mask & EFX_PHY_CAP_40000FDX) encp->enc_bug41750_workaround = B_TRUE; else encp->enc_bug41750_workaround = B_FALSE; } else if ((rc == ENOTSUP) || (rc == ENOENT)) { encp->enc_bug41750_workaround = B_FALSE; } else { goto fail9; } if (EFX_PCI_FUNCTION_IS_VF(encp)) { /* Interrupt testing does not work for VFs. See bug50084. */ encp->enc_bug41750_workaround = B_TRUE; } /* * If the bug26807 workaround is enabled, then firmware has enabled * support for chained multicast filters. Firmware will reset (FLR) * functions which have filters in the hardware filter table when the * workaround is enabled/disabled. * * We must recheck if the workaround is enabled after inserting the * first hardware filter, in case it has been changed since this check. */ rc = efx_mcdi_set_workaround(enp, MC_CMD_WORKAROUND_BUG26807, B_TRUE, &flags); if (rc == 0) { encp->enc_bug26807_workaround = B_TRUE; if (flags & (1 << MC_CMD_WORKAROUND_EXT_OUT_FLR_DONE_LBN)) { /* * Other functions had installed filters before the * workaround was enabled, and they have been reset * by firmware. */ EFSYS_PROBE(bug26807_workaround_flr_done); /* FIXME: bump MC warm boot count ? */ } } else if (rc == EACCES) { /* * Unprivileged functions cannot enable the workaround in older * firmware. */ encp->enc_bug26807_workaround = B_FALSE; } else if ((rc == ENOTSUP) || (rc == ENOENT)) { encp->enc_bug26807_workaround = B_FALSE; } else { goto fail10; } /* Get sysclk frequency (in MHz). */ if ((rc = efx_mcdi_get_clock(enp, &sysclk)) != 0) goto fail11; /* * The timer quantum is 1536 sysclk cycles, documented for the * EV_TMR_VAL field of EV_TIMER_TBL. Scale for MHz and ns units. */ encp->enc_evq_timer_quantum_ns = 1536000UL / sysclk; /* 1536 cycles */ if (encp->enc_bug35388_workaround) { encp->enc_evq_timer_max_us = (encp->enc_evq_timer_quantum_ns << ERF_DD_EVQ_IND_TIMER_VAL_WIDTH) / 1000; } else { encp->enc_evq_timer_max_us = (encp->enc_evq_timer_quantum_ns << FRF_CZ_TC_TIMER_VAL_WIDTH) / 1000; } /* Check capabilities of running datapath firmware */ if ((rc = ef10_get_datapath_caps(enp)) != 0) goto fail12; /* Alignment for receive packet DMA buffers */ encp->enc_rx_buf_align_start = 1; encp->enc_rx_buf_align_end = 64; /* RX DMA end padding */ /* Alignment for WPTR updates */ encp->enc_rx_push_align = EF10_RX_WPTR_ALIGN; /* * Set resource limits for MC_CMD_ALLOC_VIS. Note that we cannot use * MC_CMD_GET_RESOURCE_LIMITS here as that reports the available * resources (allocated to this PCIe function), which is zero until * after we have allocated VIs. */ encp->enc_evq_limit = 1024; encp->enc_rxq_limit = EFX_RXQ_LIMIT_TARGET; encp->enc_txq_limit = EFX_TXQ_LIMIT_TARGET; encp->enc_buftbl_limit = 0xFFFFFFFF; encp->enc_piobuf_limit = HUNT_PIOBUF_NBUFS; encp->enc_piobuf_size = HUNT_PIOBUF_SIZE; encp->enc_piobuf_min_alloc_size = HUNT_MIN_PIO_ALLOC_SIZE; /* * Get the current privilege mask. Note that this may be modified * dynamically, so this value is informational only. DO NOT use * the privilege mask to check for sufficient privileges, as that * can result in time-of-check/time-of-use bugs. */ if ((rc = ef10_get_privilege_mask(enp, &mask)) != 0) goto fail13; encp->enc_privilege_mask = mask; /* Get interrupt vector limits */ if ((rc = efx_mcdi_get_vector_cfg(enp, &base, &nvec, NULL)) != 0) { if (EFX_PCI_FUNCTION_IS_PF(encp)) goto fail14; /* Ignore error (cannot query vector limits from a VF). */ base = 0; nvec = 1024; } encp->enc_intr_vec_base = base; encp->enc_intr_limit = nvec; /* * Maximum number of bytes into the frame the TCP header can start for * firmware assisted TSO to work. */ encp->enc_tx_tso_tcp_header_offset_limit = EF10_TCP_HEADER_OFFSET_LIMIT; return (0); fail14: EFSYS_PROBE(fail14); fail13: EFSYS_PROBE(fail13); fail12: EFSYS_PROBE(fail12); fail11: EFSYS_PROBE(fail11); fail10: EFSYS_PROBE(fail10); fail9: EFSYS_PROBE(fail9); fail8: EFSYS_PROBE(fail8); fail7: EFSYS_PROBE(fail7); fail6: EFSYS_PROBE(fail6); fail5: EFSYS_PROBE(fail5); fail4: EFSYS_PROBE(fail4); fail3: EFSYS_PROBE(fail3); fail2: EFSYS_PROBE(fail2); fail1: EFSYS_PROBE1(fail1, efx_rc_t, rc); return (rc); } #endif /* EFSYS_OPT_HUNTINGTON */
