diff options
Diffstat (limited to 'drivers/net/sfc/base/ef10_nic.c')
| -rw-r--r-- | drivers/net/sfc/base/ef10_nic.c | 1780 |
1 files changed, 1780 insertions, 0 deletions
diff --git a/drivers/net/sfc/base/ef10_nic.c b/drivers/net/sfc/base/ef10_nic.c new file mode 100644 index 00000000..aac2679c --- /dev/null +++ b/drivers/net/sfc/base/ef10_nic.c @@ -0,0 +1,1780 @@ +/* + * Copyright (c) 2012-2016 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 || EFSYS_OPT_MEDFORD + +#include "ef10_tlv_layout.h" + + __checkReturn efx_rc_t +efx_mcdi_get_port_assignment( + __in efx_nic_t *enp, + __out uint32_t *portp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_PORT_ASSIGNMENT_IN_LEN, + MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN)]; + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_GET_PORT_ASSIGNMENT; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_GET_PORT_ASSIGNMENT_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN; + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + if (req.emr_out_length_used < MC_CMD_GET_PORT_ASSIGNMENT_OUT_LEN) { + rc = EMSGSIZE; + goto fail2; + } + + *portp = MCDI_OUT_DWORD(req, GET_PORT_ASSIGNMENT_OUT_PORT); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +efx_mcdi_get_port_modes( + __in efx_nic_t *enp, + __out uint32_t *modesp, + __out_opt uint32_t *current_modep) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_PORT_MODES_IN_LEN, + MC_CMD_GET_PORT_MODES_OUT_LEN)]; + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_GET_PORT_MODES; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_GET_PORT_MODES_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_GET_PORT_MODES_OUT_LEN; + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + /* + * Require only Modes and DefaultMode fields, unless the current mode + * was requested (CurrentMode field was added for Medford). + */ + if (req.emr_out_length_used < + MC_CMD_GET_PORT_MODES_OUT_CURRENT_MODE_OFST) { + rc = EMSGSIZE; + goto fail2; + } + if ((current_modep != NULL) && (req.emr_out_length_used < + MC_CMD_GET_PORT_MODES_OUT_CURRENT_MODE_OFST + 4)) { + rc = EMSGSIZE; + goto fail3; + } + + *modesp = MCDI_OUT_DWORD(req, GET_PORT_MODES_OUT_MODES); + + if (current_modep != NULL) { + *current_modep = MCDI_OUT_DWORD(req, + GET_PORT_MODES_OUT_CURRENT_MODE); + } + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_nic_get_port_mode_bandwidth( + __in uint32_t port_mode, + __out uint32_t *bandwidth_mbpsp) +{ + uint32_t bandwidth; + efx_rc_t rc; + + switch (port_mode) { + case TLV_PORT_MODE_10G: + bandwidth = 10000; + break; + case TLV_PORT_MODE_10G_10G: + bandwidth = 10000 * 2; + break; + case TLV_PORT_MODE_10G_10G_10G_10G: + case TLV_PORT_MODE_10G_10G_10G_10G_Q: + case TLV_PORT_MODE_10G_10G_10G_10G_Q1_Q2: + case TLV_PORT_MODE_10G_10G_10G_10G_Q2: + bandwidth = 10000 * 4; + break; + case TLV_PORT_MODE_40G: + bandwidth = 40000; + break; + case TLV_PORT_MODE_40G_40G: + bandwidth = 40000 * 2; + break; + case TLV_PORT_MODE_40G_10G_10G: + case TLV_PORT_MODE_10G_10G_40G: + bandwidth = 40000 + (10000 * 2); + break; + default: + rc = EINVAL; + goto fail1; + } + + *bandwidth_mbpsp = bandwidth; + + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + +static __checkReturn efx_rc_t +efx_mcdi_vadaptor_alloc( + __in efx_nic_t *enp, + __in uint32_t port_id) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_VADAPTOR_ALLOC_IN_LEN, + MC_CMD_VADAPTOR_ALLOC_OUT_LEN)]; + efx_rc_t rc; + + EFSYS_ASSERT3U(enp->en_vport_id, ==, EVB_PORT_ID_NULL); + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_VADAPTOR_ALLOC; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_VADAPTOR_ALLOC_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_VADAPTOR_ALLOC_OUT_LEN; + + MCDI_IN_SET_DWORD(req, VADAPTOR_ALLOC_IN_UPSTREAM_PORT_ID, port_id); + MCDI_IN_POPULATE_DWORD_1(req, VADAPTOR_ALLOC_IN_FLAGS, + VADAPTOR_ALLOC_IN_FLAG_PERMIT_SET_MAC_WHEN_FILTERS_INSTALLED, + enp->en_nic_cfg.enc_allow_set_mac_with_installed_filters ? 1 : 0); + + 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); +} + +static __checkReturn efx_rc_t +efx_mcdi_vadaptor_free( + __in efx_nic_t *enp, + __in uint32_t port_id) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_VADAPTOR_FREE_IN_LEN, + MC_CMD_VADAPTOR_FREE_OUT_LEN)]; + efx_rc_t rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_VADAPTOR_FREE; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_VADAPTOR_FREE_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_VADAPTOR_FREE_OUT_LEN; + + MCDI_IN_SET_DWORD(req, VADAPTOR_FREE_IN_UPSTREAM_PORT_ID, port_id); + + 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 +efx_mcdi_get_mac_address_pf( + __in efx_nic_t *enp, + __out_ecount_opt(6) uint8_t mac_addrp[6]) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_MAC_ADDRESSES_IN_LEN, + MC_CMD_GET_MAC_ADDRESSES_OUT_LEN)]; + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_GET_MAC_ADDRESSES; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_GET_MAC_ADDRESSES_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_GET_MAC_ADDRESSES_OUT_LEN; + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + if (req.emr_out_length_used < MC_CMD_GET_MAC_ADDRESSES_OUT_LEN) { + rc = EMSGSIZE; + goto fail2; + } + + if (MCDI_OUT_DWORD(req, GET_MAC_ADDRESSES_OUT_MAC_COUNT) < 1) { + rc = ENOENT; + goto fail3; + } + + if (mac_addrp != NULL) { + uint8_t *addrp; + + addrp = MCDI_OUT2(req, uint8_t, + GET_MAC_ADDRESSES_OUT_MAC_ADDR_BASE); + + EFX_MAC_ADDR_COPY(mac_addrp, addrp); + } + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +efx_mcdi_get_mac_address_vf( + __in efx_nic_t *enp, + __out_ecount_opt(6) uint8_t mac_addrp[6]) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN, + MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMAX)]; + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_VPORT_GET_MAC_ADDRESSES; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMAX; + + MCDI_IN_SET_DWORD(req, VPORT_GET_MAC_ADDRESSES_IN_VPORT_ID, + EVB_PORT_ID_ASSIGNED); + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + if (req.emr_out_length_used < + MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMIN) { + rc = EMSGSIZE; + goto fail2; + } + + if (MCDI_OUT_DWORD(req, + VPORT_GET_MAC_ADDRESSES_OUT_MACADDR_COUNT) < 1) { + rc = ENOENT; + goto fail3; + } + + if (mac_addrp != NULL) { + uint8_t *addrp; + + addrp = MCDI_OUT2(req, uint8_t, + VPORT_GET_MAC_ADDRESSES_OUT_MACADDR); + + EFX_MAC_ADDR_COPY(mac_addrp, addrp); + } + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +efx_mcdi_get_clock( + __in efx_nic_t *enp, + __out uint32_t *sys_freqp, + __out uint32_t *dpcpu_freqp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_CLOCK_IN_LEN, + MC_CMD_GET_CLOCK_OUT_LEN)]; + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_GET_CLOCK; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_GET_CLOCK_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_GET_CLOCK_OUT_LEN; + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + if (req.emr_out_length_used < MC_CMD_GET_CLOCK_OUT_LEN) { + rc = EMSGSIZE; + goto fail2; + } + + *sys_freqp = MCDI_OUT_DWORD(req, GET_CLOCK_OUT_SYS_FREQ); + if (*sys_freqp == 0) { + rc = EINVAL; + goto fail3; + } + *dpcpu_freqp = MCDI_OUT_DWORD(req, GET_CLOCK_OUT_DPCPU_FREQ); + if (*dpcpu_freqp == 0) { + rc = EINVAL; + goto fail4; + } + + return (0); + +fail4: + EFSYS_PROBE(fail4); +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +efx_mcdi_get_vector_cfg( + __in efx_nic_t *enp, + __out_opt uint32_t *vec_basep, + __out_opt uint32_t *pf_nvecp, + __out_opt uint32_t *vf_nvecp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_VECTOR_CFG_IN_LEN, + MC_CMD_GET_VECTOR_CFG_OUT_LEN)]; + efx_rc_t rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_GET_VECTOR_CFG; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_GET_VECTOR_CFG_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_GET_VECTOR_CFG_OUT_LEN; + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + if (req.emr_out_length_used < MC_CMD_GET_VECTOR_CFG_OUT_LEN) { + rc = EMSGSIZE; + goto fail2; + } + + if (vec_basep != NULL) + *vec_basep = MCDI_OUT_DWORD(req, GET_VECTOR_CFG_OUT_VEC_BASE); + if (pf_nvecp != NULL) + *pf_nvecp = MCDI_OUT_DWORD(req, GET_VECTOR_CFG_OUT_VECS_PER_PF); + if (vf_nvecp != NULL) + *vf_nvecp = MCDI_OUT_DWORD(req, GET_VECTOR_CFG_OUT_VECS_PER_VF); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + +static __checkReturn efx_rc_t +efx_mcdi_alloc_vis( + __in efx_nic_t *enp, + __in uint32_t min_vi_count, + __in uint32_t max_vi_count, + __out uint32_t *vi_basep, + __out uint32_t *vi_countp, + __out uint32_t *vi_shiftp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_ALLOC_VIS_IN_LEN, + MC_CMD_ALLOC_VIS_EXT_OUT_LEN)]; + efx_rc_t rc; + + if (vi_countp == NULL) { + rc = EINVAL; + goto fail1; + } + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_ALLOC_VIS; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_ALLOC_VIS_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_ALLOC_VIS_EXT_OUT_LEN; + + MCDI_IN_SET_DWORD(req, ALLOC_VIS_IN_MIN_VI_COUNT, min_vi_count); + MCDI_IN_SET_DWORD(req, ALLOC_VIS_IN_MAX_VI_COUNT, max_vi_count); + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail2; + } + + if (req.emr_out_length_used < MC_CMD_ALLOC_VIS_OUT_LEN) { + rc = EMSGSIZE; + goto fail3; + } + + *vi_basep = MCDI_OUT_DWORD(req, ALLOC_VIS_OUT_VI_BASE); + *vi_countp = MCDI_OUT_DWORD(req, ALLOC_VIS_OUT_VI_COUNT); + + /* Report VI_SHIFT if available (always zero for Huntington) */ + if (req.emr_out_length_used < MC_CMD_ALLOC_VIS_EXT_OUT_LEN) + *vi_shiftp = 0; + else + *vi_shiftp = MCDI_OUT_DWORD(req, ALLOC_VIS_EXT_OUT_VI_SHIFT); + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + +static __checkReturn efx_rc_t +efx_mcdi_free_vis( + __in efx_nic_t *enp) +{ + efx_mcdi_req_t req; + efx_rc_t rc; + + EFX_STATIC_ASSERT(MC_CMD_FREE_VIS_IN_LEN == 0); + EFX_STATIC_ASSERT(MC_CMD_FREE_VIS_OUT_LEN == 0); + + req.emr_cmd = MC_CMD_FREE_VIS; + req.emr_in_buf = NULL; + req.emr_in_length = 0; + req.emr_out_buf = NULL; + req.emr_out_length = 0; + + efx_mcdi_execute_quiet(enp, &req); + + /* Ignore ELREADY (no allocated VIs, so nothing to free) */ + if ((req.emr_rc != 0) && (req.emr_rc != EALREADY)) { + rc = req.emr_rc; + goto fail1; + } + + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + +static __checkReturn efx_rc_t +efx_mcdi_alloc_piobuf( + __in efx_nic_t *enp, + __out efx_piobuf_handle_t *handlep) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_ALLOC_PIOBUF_IN_LEN, + MC_CMD_ALLOC_PIOBUF_OUT_LEN)]; + efx_rc_t rc; + + if (handlep == NULL) { + rc = EINVAL; + goto fail1; + } + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_ALLOC_PIOBUF; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_ALLOC_PIOBUF_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_ALLOC_PIOBUF_OUT_LEN; + + efx_mcdi_execute_quiet(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail2; + } + + if (req.emr_out_length_used < MC_CMD_ALLOC_PIOBUF_OUT_LEN) { + rc = EMSGSIZE; + goto fail3; + } + + *handlep = MCDI_OUT_DWORD(req, ALLOC_PIOBUF_OUT_PIOBUF_HANDLE); + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + +static __checkReturn efx_rc_t +efx_mcdi_free_piobuf( + __in efx_nic_t *enp, + __in efx_piobuf_handle_t handle) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_FREE_PIOBUF_IN_LEN, + MC_CMD_FREE_PIOBUF_OUT_LEN)]; + efx_rc_t rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_FREE_PIOBUF; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_FREE_PIOBUF_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_FREE_PIOBUF_OUT_LEN; + + MCDI_IN_SET_DWORD(req, FREE_PIOBUF_IN_PIOBUF_HANDLE, handle); + + efx_mcdi_execute_quiet(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); +} + +static __checkReturn efx_rc_t +efx_mcdi_link_piobuf( + __in efx_nic_t *enp, + __in uint32_t vi_index, + __in efx_piobuf_handle_t handle) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_LINK_PIOBUF_IN_LEN, + MC_CMD_LINK_PIOBUF_OUT_LEN)]; + efx_rc_t rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_LINK_PIOBUF; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_LINK_PIOBUF_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_LINK_PIOBUF_OUT_LEN; + + MCDI_IN_SET_DWORD(req, LINK_PIOBUF_IN_PIOBUF_HANDLE, handle); + MCDI_IN_SET_DWORD(req, LINK_PIOBUF_IN_TXQ_INSTANCE, vi_index); + + 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); +} + +static __checkReturn efx_rc_t +efx_mcdi_unlink_piobuf( + __in efx_nic_t *enp, + __in uint32_t vi_index) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_UNLINK_PIOBUF_IN_LEN, + MC_CMD_UNLINK_PIOBUF_OUT_LEN)]; + efx_rc_t rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_UNLINK_PIOBUF; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_UNLINK_PIOBUF_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_UNLINK_PIOBUF_OUT_LEN; + + MCDI_IN_SET_DWORD(req, UNLINK_PIOBUF_IN_TXQ_INSTANCE, vi_index); + + efx_mcdi_execute_quiet(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); +} + +static void +ef10_nic_alloc_piobufs( + __in efx_nic_t *enp, + __in uint32_t max_piobuf_count) +{ + efx_piobuf_handle_t *handlep; + unsigned int i; + + EFSYS_ASSERT3U(max_piobuf_count, <=, + EFX_ARRAY_SIZE(enp->en_arch.ef10.ena_piobuf_handle)); + + enp->en_arch.ef10.ena_piobuf_count = 0; + + for (i = 0; i < max_piobuf_count; i++) { + handlep = &enp->en_arch.ef10.ena_piobuf_handle[i]; + + if (efx_mcdi_alloc_piobuf(enp, handlep) != 0) + goto fail1; + + enp->en_arch.ef10.ena_pio_alloc_map[i] = 0; + enp->en_arch.ef10.ena_piobuf_count++; + } + + return; + +fail1: + for (i = 0; i < enp->en_arch.ef10.ena_piobuf_count; i++) { + handlep = &enp->en_arch.ef10.ena_piobuf_handle[i]; + + efx_mcdi_free_piobuf(enp, *handlep); + *handlep = EFX_PIOBUF_HANDLE_INVALID; + } + enp->en_arch.ef10.ena_piobuf_count = 0; +} + + +static void +ef10_nic_free_piobufs( + __in efx_nic_t *enp) +{ + efx_piobuf_handle_t *handlep; + unsigned int i; + + for (i = 0; i < enp->en_arch.ef10.ena_piobuf_count; i++) { + handlep = &enp->en_arch.ef10.ena_piobuf_handle[i]; + + efx_mcdi_free_piobuf(enp, *handlep); + *handlep = EFX_PIOBUF_HANDLE_INVALID; + } + enp->en_arch.ef10.ena_piobuf_count = 0; +} + +/* Sub-allocate a block from a piobuf */ + __checkReturn efx_rc_t +ef10_nic_pio_alloc( + __inout efx_nic_t *enp, + __out uint32_t *bufnump, + __out efx_piobuf_handle_t *handlep, + __out uint32_t *blknump, + __out uint32_t *offsetp, + __out size_t *sizep) +{ + efx_nic_cfg_t *encp = &enp->en_nic_cfg; + efx_drv_cfg_t *edcp = &enp->en_drv_cfg; + uint32_t blk_per_buf; + uint32_t buf, blk; + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + EFSYS_ASSERT(bufnump); + EFSYS_ASSERT(handlep); + EFSYS_ASSERT(blknump); + EFSYS_ASSERT(offsetp); + EFSYS_ASSERT(sizep); + + if ((edcp->edc_pio_alloc_size == 0) || + (enp->en_arch.ef10.ena_piobuf_count == 0)) { + rc = ENOMEM; + goto fail1; + } + blk_per_buf = encp->enc_piobuf_size / edcp->edc_pio_alloc_size; + + for (buf = 0; buf < enp->en_arch.ef10.ena_piobuf_count; buf++) { + uint32_t *map = &enp->en_arch.ef10.ena_pio_alloc_map[buf]; + + if (~(*map) == 0) + continue; + + EFSYS_ASSERT3U(blk_per_buf, <=, (8 * sizeof (*map))); + for (blk = 0; blk < blk_per_buf; blk++) { + if ((*map & (1u << blk)) == 0) { + *map |= (1u << blk); + goto done; + } + } + } + rc = ENOMEM; + goto fail2; + +done: + *handlep = enp->en_arch.ef10.ena_piobuf_handle[buf]; + *bufnump = buf; + *blknump = blk; + *sizep = edcp->edc_pio_alloc_size; + *offsetp = blk * (*sizep); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + +/* Free a piobuf sub-allocated block */ + __checkReturn efx_rc_t +ef10_nic_pio_free( + __inout efx_nic_t *enp, + __in uint32_t bufnum, + __in uint32_t blknum) +{ + uint32_t *map; + efx_rc_t rc; + + if ((bufnum >= enp->en_arch.ef10.ena_piobuf_count) || + (blknum >= (8 * sizeof (*map)))) { + rc = EINVAL; + goto fail1; + } + + map = &enp->en_arch.ef10.ena_pio_alloc_map[bufnum]; + if ((*map & (1u << blknum)) == 0) { + rc = ENOENT; + goto fail2; + } + *map &= ~(1u << blknum); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_nic_pio_link( + __inout efx_nic_t *enp, + __in uint32_t vi_index, + __in efx_piobuf_handle_t handle) +{ + return (efx_mcdi_link_piobuf(enp, vi_index, handle)); +} + + __checkReturn efx_rc_t +ef10_nic_pio_unlink( + __inout efx_nic_t *enp, + __in uint32_t vi_index) +{ + return (efx_mcdi_unlink_piobuf(enp, vi_index)); +} + +static __checkReturn efx_rc_t +ef10_mcdi_get_pf_count( + __in efx_nic_t *enp, + __out uint32_t *pf_countp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_PF_COUNT_IN_LEN, + MC_CMD_GET_PF_COUNT_OUT_LEN)]; + efx_rc_t rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_GET_PF_COUNT; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_GET_PF_COUNT_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_GET_PF_COUNT_OUT_LEN; + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + if (req.emr_out_length_used < MC_CMD_GET_PF_COUNT_OUT_LEN) { + rc = EMSGSIZE; + goto fail2; + } + + *pf_countp = *MCDI_OUT(req, uint8_t, + MC_CMD_GET_PF_COUNT_OUT_PF_COUNT_OFST); + + EFSYS_ASSERT(*pf_countp != 0); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_get_datapath_caps( + __in efx_nic_t *enp) +{ + efx_nic_cfg_t *encp = &(enp->en_nic_cfg); + uint32_t flags; + uint32_t flags2; + uint32_t tso2nc; + efx_rc_t rc; + + if ((rc = efx_mcdi_get_capabilities(enp, &flags, NULL, NULL, + &flags2, &tso2nc)) != 0) + goto fail1; + + if ((rc = ef10_mcdi_get_pf_count(enp, &encp->enc_hw_pf_count)) != 0) + goto fail1; + +#define CAP_FLAG(flags1, field) \ + ((flags1) & (1 << (MC_CMD_GET_CAPABILITIES_V2_OUT_ ## field ## _LBN))) + +#define CAP_FLAG2(flags2, field) \ + ((flags2) & (1 << (MC_CMD_GET_CAPABILITIES_V2_OUT_ ## field ## _LBN))) + + /* + * Huntington RXDP firmware inserts a 0 or 14 byte prefix. + * We only support the 14 byte prefix here. + */ + if (CAP_FLAG(flags, RX_PREFIX_LEN_14) == 0) { + rc = ENOTSUP; + goto fail2; + } + encp->enc_rx_prefix_size = 14; + + /* Check if the firmware supports TSO */ + encp->enc_fw_assisted_tso_enabled = + CAP_FLAG(flags, TX_TSO) ? B_TRUE : B_FALSE; + + /* Check if the firmware supports FATSOv2 */ + encp->enc_fw_assisted_tso_v2_enabled = + CAP_FLAG2(flags2, TX_TSO_V2) ? B_TRUE : B_FALSE; + + /* Get the number of TSO contexts (FATSOv2) */ + encp->enc_fw_assisted_tso_v2_n_contexts = + CAP_FLAG2(flags2, TX_TSO_V2) ? tso2nc : 0; + + /* Check if the firmware has vadapter/vport/vswitch support */ + encp->enc_datapath_cap_evb = + CAP_FLAG(flags, EVB) ? B_TRUE : B_FALSE; + + /* Check if the firmware supports VLAN insertion */ + encp->enc_hw_tx_insert_vlan_enabled = + CAP_FLAG(flags, TX_VLAN_INSERTION) ? B_TRUE : B_FALSE; + + /* Check if the firmware supports RX event batching */ + encp->enc_rx_batching_enabled = + CAP_FLAG(flags, RX_BATCHING) ? B_TRUE : B_FALSE; + + /* + * Even if batching isn't reported as supported, we may still get + * batched events (see bug61153). + */ + encp->enc_rx_batch_max = 16; + + /* Check if the firmware supports disabling scatter on RXQs */ + encp->enc_rx_disable_scatter_supported = + CAP_FLAG(flags, RX_DISABLE_SCATTER) ? B_TRUE : B_FALSE; + + /* Check if the firmware supports packed stream mode */ + encp->enc_rx_packed_stream_supported = + CAP_FLAG(flags, RX_PACKED_STREAM) ? B_TRUE : B_FALSE; + + /* + * Check if the firmware supports configurable buffer sizes + * for packed stream mode (otherwise buffer size is 1Mbyte) + */ + encp->enc_rx_var_packed_stream_supported = + CAP_FLAG(flags, RX_PACKED_STREAM_VAR_BUFFERS) ? B_TRUE : B_FALSE; + + /* Check if the firmware supports set mac with running filters */ + encp->enc_allow_set_mac_with_installed_filters = + 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; + + /* + * Check if firmware supports version 2 of MC_CMD_INIT_EVQ, which allows + * us to let the firmware choose the settings to use on an EVQ. + */ + encp->enc_init_evq_v2_supported = + CAP_FLAG2(flags2, INIT_EVQ_V2) ? B_TRUE : B_FALSE; + + /* + * Check if firmware-verified NVRAM updates must be used. + * + * The firmware trusted installer requires all NVRAM updates to use + * version 2 of MC_CMD_NVRAM_UPDATE_START (to enable verified update) + * and version 2 of MC_CMD_NVRAM_UPDATE_FINISH (to verify the updated + * partition and report the result). + */ + encp->enc_fw_verified_nvram_update_required = + CAP_FLAG2(flags2, NVRAM_UPDATE_REPORT_VERIFY_RESULT) ? + B_TRUE : B_FALSE; + + /* + * Check if firmware provides packet memory and Rx datapath + * counters. + */ + encp->enc_pm_and_rxdp_counters = + CAP_FLAG(flags, PM_AND_RXDP_COUNTERS) ? B_TRUE : B_FALSE; + + /* + * Check if the 40G MAC hardware is capable of reporting + * statistics for Tx size bins. + */ + encp->enc_mac_stats_40g_tx_size_bins = + CAP_FLAG2(flags2, MAC_STATS_40G_TX_SIZE_BINS) ? B_TRUE : B_FALSE; + +#undef CAP_FLAG +#undef CAP_FLAG2 + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + +#define EF10_LEGACY_PF_PRIVILEGE_MASK \ + (MC_CMD_PRIVILEGE_MASK_IN_GRP_ADMIN | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_LINK | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_ONLOAD | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_PTP | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_INSECURE_FILTERS | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_UNICAST | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_MULTICAST | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_BROADCAST | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_ALL_MULTICAST | \ + MC_CMD_PRIVILEGE_MASK_IN_GRP_PROMISCUOUS) + +#define EF10_LEGACY_VF_PRIVILEGE_MASK 0 + + + __checkReturn efx_rc_t +ef10_get_privilege_mask( + __in efx_nic_t *enp, + __out uint32_t *maskp) +{ + efx_nic_cfg_t *encp = &(enp->en_nic_cfg); + uint32_t mask; + efx_rc_t rc; + + if ((rc = efx_mcdi_privilege_mask(enp, encp->enc_pf, encp->enc_vf, + &mask)) != 0) { + if (rc != ENOTSUP) + goto fail1; + + /* Fallback for old firmware without privilege mask support */ + if (EFX_PCI_FUNCTION_IS_PF(encp)) { + /* Assume PF has admin privilege */ + mask = EF10_LEGACY_PF_PRIVILEGE_MASK; + } else { + /* VF is always unprivileged by default */ + mask = EF10_LEGACY_VF_PRIVILEGE_MASK; + } + } + + *maskp = mask; + + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + +/* + * Table of mapping schemes from port number to the number of the external + * connector on the board. The external numbering does not distinguish + * off-board separated outputs such as from multi-headed cables. + * + * The count of adjacent port numbers that map to each external port + * and the offset in the numbering, is determined by the chip family and + * current port mode. + * + * For the Huntington family, the current port mode cannot be discovered, + * so the mapping used is instead the last match in the table to the full + * set of port modes to which the NIC can be configured. Therefore the + * ordering of entries in the the mapping table is significant. + */ +static struct { + efx_family_t family; + uint32_t modes_mask; + int32_t count; + int32_t offset; +} __ef10_external_port_mappings[] = { + /* Supported modes with 1 output per external port */ + { + EFX_FAMILY_HUNTINGTON, + (1 << TLV_PORT_MODE_10G) | + (1 << TLV_PORT_MODE_10G_10G) | + (1 << TLV_PORT_MODE_10G_10G_10G_10G), + 1, + 1 + }, + { + EFX_FAMILY_MEDFORD, + (1 << TLV_PORT_MODE_10G) | + (1 << TLV_PORT_MODE_10G_10G), + 1, + 1 + }, + /* Supported modes with 2 outputs per external port */ + { + EFX_FAMILY_HUNTINGTON, + (1 << TLV_PORT_MODE_40G) | + (1 << TLV_PORT_MODE_40G_40G) | + (1 << TLV_PORT_MODE_40G_10G_10G) | + (1 << TLV_PORT_MODE_10G_10G_40G), + 2, + 1 + }, + { + EFX_FAMILY_MEDFORD, + (1 << TLV_PORT_MODE_40G) | + (1 << TLV_PORT_MODE_40G_40G) | + (1 << TLV_PORT_MODE_40G_10G_10G) | + (1 << TLV_PORT_MODE_10G_10G_40G) | + (1 << TLV_PORT_MODE_10G_10G_10G_10G_Q1_Q2), + 2, + 1 + }, + /* Supported modes with 4 outputs per external port */ + { + EFX_FAMILY_MEDFORD, + (1 << TLV_PORT_MODE_10G_10G_10G_10G_Q) | + (1 << TLV_PORT_MODE_10G_10G_10G_10G_Q1), + 4, + 1, + }, + { + EFX_FAMILY_MEDFORD, + (1 << TLV_PORT_MODE_10G_10G_10G_10G_Q2), + 4, + 2 + }, +}; + + __checkReturn efx_rc_t +ef10_external_port_mapping( + __in efx_nic_t *enp, + __in uint32_t port, + __out uint8_t *external_portp) +{ + efx_rc_t rc; + int i; + uint32_t port_modes; + uint32_t matches; + uint32_t current; + int32_t count = 1; /* Default 1-1 mapping */ + int32_t offset = 1; /* Default starting external port number */ + + if ((rc = efx_mcdi_get_port_modes(enp, &port_modes, ¤t)) != 0) { + /* + * No current port mode information + * - infer mapping from available modes + */ + if ((rc = efx_mcdi_get_port_modes(enp, + &port_modes, NULL)) != 0) { + /* + * No port mode information available + * - use default mapping + */ + goto out; + } + } else { + /* Only need to scan the current mode */ + port_modes = 1 << current; + } + + /* + * Infer the internal port -> external port mapping from + * the possible port modes for this NIC. + */ + for (i = 0; i < EFX_ARRAY_SIZE(__ef10_external_port_mappings); ++i) { + if (__ef10_external_port_mappings[i].family != + enp->en_family) + continue; + matches = (__ef10_external_port_mappings[i].modes_mask & + port_modes); + if (matches != 0) { + count = __ef10_external_port_mappings[i].count; + offset = __ef10_external_port_mappings[i].offset; + port_modes &= ~matches; + } + } + + if (port_modes != 0) { + /* Some advertised modes are not supported */ + rc = ENOTSUP; + goto fail1; + } + +out: + /* + * Scale as required by last matched mode and then convert to + * correctly offset numbering + */ + *external_portp = (uint8_t)((port / count) + offset); + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + + __checkReturn efx_rc_t +ef10_nic_probe( + __in efx_nic_t *enp) +{ + const efx_nic_ops_t *enop = enp->en_enop; + efx_nic_cfg_t *encp = &(enp->en_nic_cfg); + efx_drv_cfg_t *edcp = &(enp->en_drv_cfg); + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + /* Read and clear any assertion state */ + if ((rc = efx_mcdi_read_assertion(enp)) != 0) + goto fail1; + + /* Exit the assertion handler */ + if ((rc = efx_mcdi_exit_assertion_handler(enp)) != 0) + if (rc != EACCES) + goto fail2; + + if ((rc = efx_mcdi_drv_attach(enp, B_TRUE)) != 0) + goto fail3; + + if ((rc = enop->eno_board_cfg(enp)) != 0) + if (rc != EACCES) + goto fail4; + + /* + * Set default driver config limits (based on board config). + * + * FIXME: For now allocate a fixed number of VIs which is likely to be + * sufficient and small enough to allow multiple functions on the same + * port. + */ + edcp->edc_min_vi_count = edcp->edc_max_vi_count = + MIN(128, MAX(encp->enc_rxq_limit, encp->enc_txq_limit)); + + /* The client driver must configure and enable PIO buffer support */ + edcp->edc_max_piobuf_count = 0; + edcp->edc_pio_alloc_size = 0; + +#if EFSYS_OPT_MAC_STATS + /* Wipe the MAC statistics */ + if ((rc = efx_mcdi_mac_stats_clear(enp)) != 0) + goto fail5; +#endif + +#if EFSYS_OPT_LOOPBACK + if ((rc = efx_mcdi_get_loopback_modes(enp)) != 0) + goto fail6; +#endif + +#if EFSYS_OPT_MON_STATS + if ((rc = mcdi_mon_cfg_build(enp)) != 0) { + /* Unprivileged functions do not have access to sensors */ + if (rc != EACCES) + goto fail7; + } +#endif + + encp->enc_features = enp->en_features; + + return (0); + +#if EFSYS_OPT_MON_STATS +fail7: + EFSYS_PROBE(fail7); +#endif +#if EFSYS_OPT_LOOPBACK +fail6: + EFSYS_PROBE(fail6); +#endif +#if EFSYS_OPT_MAC_STATS +fail5: + EFSYS_PROBE(fail5); +#endif +fail4: + EFSYS_PROBE(fail4); +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_nic_set_drv_limits( + __inout efx_nic_t *enp, + __in efx_drv_limits_t *edlp) +{ + efx_nic_cfg_t *encp = &(enp->en_nic_cfg); + efx_drv_cfg_t *edcp = &(enp->en_drv_cfg); + uint32_t min_evq_count, max_evq_count; + uint32_t min_rxq_count, max_rxq_count; + uint32_t min_txq_count, max_txq_count; + efx_rc_t rc; + + if (edlp == NULL) { + rc = EINVAL; + goto fail1; + } + + /* Get minimum required and maximum usable VI limits */ + min_evq_count = MIN(edlp->edl_min_evq_count, encp->enc_evq_limit); + min_rxq_count = MIN(edlp->edl_min_rxq_count, encp->enc_rxq_limit); + min_txq_count = MIN(edlp->edl_min_txq_count, encp->enc_txq_limit); + + edcp->edc_min_vi_count = + MAX(min_evq_count, MAX(min_rxq_count, min_txq_count)); + + max_evq_count = MIN(edlp->edl_max_evq_count, encp->enc_evq_limit); + max_rxq_count = MIN(edlp->edl_max_rxq_count, encp->enc_rxq_limit); + max_txq_count = MIN(edlp->edl_max_txq_count, encp->enc_txq_limit); + + edcp->edc_max_vi_count = + MAX(max_evq_count, MAX(max_rxq_count, max_txq_count)); + + /* + * Check limits for sub-allocated piobuf blocks. + * PIO is optional, so don't fail if the limits are incorrect. + */ + if ((encp->enc_piobuf_size == 0) || + (encp->enc_piobuf_limit == 0) || + (edlp->edl_min_pio_alloc_size == 0) || + (edlp->edl_min_pio_alloc_size > encp->enc_piobuf_size)) { + /* Disable PIO */ + edcp->edc_max_piobuf_count = 0; + edcp->edc_pio_alloc_size = 0; + } else { + uint32_t blk_size, blk_count, blks_per_piobuf; + + blk_size = + MAX(edlp->edl_min_pio_alloc_size, + encp->enc_piobuf_min_alloc_size); + + blks_per_piobuf = encp->enc_piobuf_size / blk_size; + EFSYS_ASSERT3U(blks_per_piobuf, <=, 32); + + blk_count = (encp->enc_piobuf_limit * blks_per_piobuf); + + /* A zero max pio alloc count means unlimited */ + if ((edlp->edl_max_pio_alloc_count > 0) && + (edlp->edl_max_pio_alloc_count < blk_count)) { + blk_count = edlp->edl_max_pio_alloc_count; + } + + edcp->edc_pio_alloc_size = blk_size; + edcp->edc_max_piobuf_count = + (blk_count + (blks_per_piobuf - 1)) / blks_per_piobuf; + } + + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + + __checkReturn efx_rc_t +ef10_nic_reset( + __in efx_nic_t *enp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_ENTITY_RESET_IN_LEN, + MC_CMD_ENTITY_RESET_OUT_LEN)]; + efx_rc_t rc; + + /* ef10_nic_reset() is called to recover from BADASSERT failures. */ + if ((rc = efx_mcdi_read_assertion(enp)) != 0) + goto fail1; + if ((rc = efx_mcdi_exit_assertion_handler(enp)) != 0) + goto fail2; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_ENTITY_RESET; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_ENTITY_RESET_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_ENTITY_RESET_OUT_LEN; + + MCDI_IN_POPULATE_DWORD_1(req, ENTITY_RESET_IN_FLAG, + ENTITY_RESET_IN_FUNCTION_RESOURCE_RESET, 1); + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail3; + } + + /* Clear RX/TX DMA queue errors */ + enp->en_reset_flags &= ~(EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR); + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_nic_init( + __in efx_nic_t *enp) +{ + efx_drv_cfg_t *edcp = &(enp->en_drv_cfg); + uint32_t min_vi_count, max_vi_count; + uint32_t vi_count, vi_base, vi_shift; + uint32_t i; + uint32_t retry; + uint32_t delay_us; + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + /* Enable reporting of some events (e.g. link change) */ + if ((rc = efx_mcdi_log_ctrl(enp)) != 0) + goto fail1; + + /* Allocate (optional) on-chip PIO buffers */ + ef10_nic_alloc_piobufs(enp, edcp->edc_max_piobuf_count); + + /* + * For best performance, PIO writes should use a write-combined + * (WC) memory mapping. Using a separate WC mapping for the PIO + * aperture of each VI would be a burden to drivers (and not + * possible if the host page size is >4Kbyte). + * + * To avoid this we use a single uncached (UC) mapping for VI + * register access, and a single WC mapping for extra VIs used + * for PIO writes. + * + * Each piobuf must be linked to a VI in the WC mapping, and to + * each VI that is using a sub-allocated block from the piobuf. + */ + min_vi_count = edcp->edc_min_vi_count; + max_vi_count = + edcp->edc_max_vi_count + enp->en_arch.ef10.ena_piobuf_count; + + /* Ensure that the previously attached driver's VIs are freed */ + if ((rc = efx_mcdi_free_vis(enp)) != 0) + goto fail2; + + /* + * Reserve VI resources (EVQ+RXQ+TXQ) for this PCIe function. If this + * fails then retrying the request for fewer VI resources may succeed. + */ + vi_count = 0; + if ((rc = efx_mcdi_alloc_vis(enp, min_vi_count, max_vi_count, + &vi_base, &vi_count, &vi_shift)) != 0) + goto fail3; + + EFSYS_PROBE2(vi_alloc, uint32_t, vi_base, uint32_t, vi_count); + + if (vi_count < min_vi_count) { + rc = ENOMEM; + goto fail4; + } + + enp->en_arch.ef10.ena_vi_base = vi_base; + enp->en_arch.ef10.ena_vi_count = vi_count; + enp->en_arch.ef10.ena_vi_shift = vi_shift; + + if (vi_count < min_vi_count + enp->en_arch.ef10.ena_piobuf_count) { + /* Not enough extra VIs to map piobufs */ + ef10_nic_free_piobufs(enp); + } + + enp->en_arch.ef10.ena_pio_write_vi_base = + vi_count - enp->en_arch.ef10.ena_piobuf_count; + + /* Save UC memory mapping details */ + enp->en_arch.ef10.ena_uc_mem_map_offset = 0; + if (enp->en_arch.ef10.ena_piobuf_count > 0) { + enp->en_arch.ef10.ena_uc_mem_map_size = + (ER_DZ_TX_PIOBUF_STEP * + enp->en_arch.ef10.ena_pio_write_vi_base); + } else { + enp->en_arch.ef10.ena_uc_mem_map_size = + (ER_DZ_TX_PIOBUF_STEP * + enp->en_arch.ef10.ena_vi_count); + } + + /* Save WC memory mapping details */ + enp->en_arch.ef10.ena_wc_mem_map_offset = + enp->en_arch.ef10.ena_uc_mem_map_offset + + enp->en_arch.ef10.ena_uc_mem_map_size; + + enp->en_arch.ef10.ena_wc_mem_map_size = + (ER_DZ_TX_PIOBUF_STEP * + enp->en_arch.ef10.ena_piobuf_count); + + /* Link piobufs to extra VIs in WC mapping */ + if (enp->en_arch.ef10.ena_piobuf_count > 0) { + for (i = 0; i < enp->en_arch.ef10.ena_piobuf_count; i++) { + rc = efx_mcdi_link_piobuf(enp, + enp->en_arch.ef10.ena_pio_write_vi_base + i, + enp->en_arch.ef10.ena_piobuf_handle[i]); + if (rc != 0) + break; + } + } + + /* + * Allocate a vAdaptor attached to our upstream vPort/pPort. + * + * On a VF, this may fail with MC_CMD_ERR_NO_EVB_PORT (ENOENT) if the PF + * driver has yet to bring up the EVB port. See bug 56147. In this case, + * retry the request several times after waiting a while. The wait time + * between retries starts small (10ms) and exponentially increases. + * Total wait time is a little over two seconds. Retry logic in the + * client driver may mean this whole loop is repeated if it continues to + * fail. + */ + retry = 0; + delay_us = 10000; + while ((rc = efx_mcdi_vadaptor_alloc(enp, EVB_PORT_ID_ASSIGNED)) != 0) { + if (EFX_PCI_FUNCTION_IS_PF(&enp->en_nic_cfg) || + (rc != ENOENT)) { + /* + * Do not retry alloc for PF, or for other errors on + * a VF. + */ + goto fail5; + } + + /* VF startup before PF is ready. Retry allocation. */ + if (retry > 5) { + /* Too many attempts */ + rc = EINVAL; + goto fail6; + } + EFSYS_PROBE1(mcdi_no_evb_port_retry, int, retry); + EFSYS_SLEEP(delay_us); + retry++; + if (delay_us < 500000) + delay_us <<= 2; + } + + enp->en_vport_id = EVB_PORT_ID_ASSIGNED; + enp->en_nic_cfg.enc_mcdi_max_payload_length = MCDI_CTL_SDU_LEN_MAX_V2; + + return (0); + +fail6: + EFSYS_PROBE(fail6); +fail5: + EFSYS_PROBE(fail5); +fail4: + EFSYS_PROBE(fail4); +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); + + ef10_nic_free_piobufs(enp); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_nic_get_vi_pool( + __in efx_nic_t *enp, + __out uint32_t *vi_countp) +{ + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + /* + * Report VIs that the client driver can use. + * Do not include VIs used for PIO buffer writes. + */ + *vi_countp = enp->en_arch.ef10.ena_pio_write_vi_base; + + return (0); +} + + __checkReturn efx_rc_t +ef10_nic_get_bar_region( + __in efx_nic_t *enp, + __in efx_nic_region_t region, + __out uint32_t *offsetp, + __out size_t *sizep) +{ + efx_rc_t rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON || + enp->en_family == EFX_FAMILY_MEDFORD); + + /* + * TODO: Specify host memory mapping alignment and granularity + * in efx_drv_limits_t so that they can be taken into account + * when allocating extra VIs for PIO writes. + */ + switch (region) { + case EFX_REGION_VI: + /* UC mapped memory BAR region for VI registers */ + *offsetp = enp->en_arch.ef10.ena_uc_mem_map_offset; + *sizep = enp->en_arch.ef10.ena_uc_mem_map_size; + break; + + case EFX_REGION_PIO_WRITE_VI: + /* WC mapped memory BAR region for piobuf writes */ + *offsetp = enp->en_arch.ef10.ena_wc_mem_map_offset; + *sizep = enp->en_arch.ef10.ena_wc_mem_map_size; + break; + + default: + rc = EINVAL; + goto fail1; + } + + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + void +ef10_nic_fini( + __in efx_nic_t *enp) +{ + uint32_t i; + efx_rc_t rc; + + (void) efx_mcdi_vadaptor_free(enp, enp->en_vport_id); + enp->en_vport_id = 0; + + /* Unlink piobufs from extra VIs in WC mapping */ + if (enp->en_arch.ef10.ena_piobuf_count > 0) { + for (i = 0; i < enp->en_arch.ef10.ena_piobuf_count; i++) { + rc = efx_mcdi_unlink_piobuf(enp, + enp->en_arch.ef10.ena_pio_write_vi_base + i); + if (rc != 0) + break; + } + } + + ef10_nic_free_piobufs(enp); + + (void) efx_mcdi_free_vis(enp); + enp->en_arch.ef10.ena_vi_count = 0; +} + + void +ef10_nic_unprobe( + __in efx_nic_t *enp) +{ +#if EFSYS_OPT_MON_STATS + mcdi_mon_cfg_free(enp); +#endif /* EFSYS_OPT_MON_STATS */ + (void) efx_mcdi_drv_attach(enp, B_FALSE); +} + +#if EFSYS_OPT_DIAG + + __checkReturn efx_rc_t +ef10_nic_register_test( + __in efx_nic_t *enp) +{ + efx_rc_t rc; + + /* FIXME */ + _NOTE(ARGUNUSED(enp)) + _NOTE(CONSTANTCONDITION) + if (B_FALSE) { + rc = ENOTSUP; + goto fail1; + } + /* FIXME */ + + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + +#endif /* EFSYS_OPT_DIAG */ + + +#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */ |