diff options
Diffstat (limited to 'sys/dev/sfxge/common/medford_nic.c')
| -rw-r--r-- | sys/dev/sfxge/common/medford_nic.c | 199 |
1 files changed, 198 insertions, 1 deletions
diff --git a/sys/dev/sfxge/common/medford_nic.c b/sys/dev/sfxge/common/medford_nic.c index a293ae33df68..51a8ac0fe75e 100644 --- a/sys/dev/sfxge/common/medford_nic.c +++ b/sys/dev/sfxge/common/medford_nic.c @@ -31,7 +31,6 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); -#include "efsys.h" #include "efx.h" #include "efx_impl.h" #include "mcdi_mon.h" @@ -40,7 +39,205 @@ __FBSDID("$FreeBSD$"); #include "ef10_tlv_layout.h" + __checkReturn efx_rc_t +medford_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; + hunt_link_state_t hls; + 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; + /* + * FIXME: Likely to be incomplete and incorrect. + * Parts of this should be shared with Huntington. + */ + 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 Medford */ + + /* 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 = hunt_phy_get_link(enp, &hls)) != 0) + goto fail7; + epp->ep_default_adv_cap_mask = hls.hls_adv_cap_mask; + epp->ep_adv_cap_mask = hls.hls_adv_cap_mask; + + if (EFX_PCI_FUNCTION_IS_VF(encp)) { + /* + * Interrupt testing does not work for VFs. See bug50084. + * FIXME: Does this still apply to Medford? + */ + encp->enc_bug41750_workaround = B_TRUE; + } + + /* Chained multicast is always enabled on Medford */ + encp->enc_bug26807_workaround = B_TRUE; + + /* Get sysclk frequency (in MHz). */ + if ((rc = efx_mcdi_get_clock(enp, &sysclk)) != 0) + goto fail8; + + /* + * 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 */ + 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 fail9; + + /* Alignment for receive packet DMA buffers */ + encp->enc_rx_buf_align_start = 1; + + /* FIXME: RX DMA end padding is configurable on Medford */ + encp->enc_rx_buf_align_end = 64; + + /* 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 = MEDFORD_PIOBUF_NBUFS; + encp->enc_piobuf_size = MEDFORD_PIOBUF_SIZE; + encp->enc_piobuf_min_alloc_size = MEDFORD_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 = efx_mcdi_privilege_mask(enp, pf, vf, &mask)) != 0) + goto fail10; + + 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 fail11; + + /* 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); + +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_MEDFORD */ |