diff options
Diffstat (limited to 'sys/dev/sfxge/common/hunt_nic.c')
| -rw-r--r-- | sys/dev/sfxge/common/hunt_nic.c | 1741 |
1 files changed, 1741 insertions, 0 deletions
diff --git a/sys/dev/sfxge/common/hunt_nic.c b/sys/dev/sfxge/common/hunt_nic.c new file mode 100644 index 0000000..a4babc3 --- /dev/null +++ b/sys/dev/sfxge/common/hunt_nic.c @@ -0,0 +1,1741 @@ +/*- + * 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "efsys.h" +#include "efx.h" +#include "efx_impl.h" +#include "mcdi_mon.h" + +#if EFSYS_OPT_HUNTINGTON + +#include "ef10_tlv_layout.h" + +static __checkReturn int +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)]; + int rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON); + + (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, int, rc); + + return (rc); +} + +static __checkReturn int +efx_mcdi_get_port_modes( + __in efx_nic_t *enp, + __out uint32_t *modesp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_PORT_MODES_IN_LEN, + MC_CMD_GET_PORT_MODES_OUT_LEN)]; + int rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON); + + (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; + } + + /* Accept pre-Medford size (8 bytes - no CurrentMode field) */ + if (req.emr_out_length_used < + MC_CMD_GET_PORT_MODES_OUT_CURRENT_MODE_OFST) { + rc = EMSGSIZE; + goto fail2; + } + + *modesp = MCDI_OUT_DWORD(req, GET_PORT_MODES_OUT_MODES); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + + +static __checkReturn int +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)]; + int 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); + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + return (0); + +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + +static __checkReturn int +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)]; + int 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, int, rc); + + return (rc); +} + +static __checkReturn int +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)]; + int rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON); + + (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, int, rc); + + return (rc); +} + +static __checkReturn int +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)]; + int rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON); + + (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, int, rc); + + return (rc); +} + +static __checkReturn int +efx_mcdi_get_clock( + __in efx_nic_t *enp, + __out uint32_t *sys_freqp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_CLOCK_IN_LEN, + MC_CMD_GET_CLOCK_OUT_LEN)]; + int rc; + + EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON); + + (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; + } + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + +static __checkReturn int +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)]; + int 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, int, rc); + + return (rc); +} + +static __checkReturn int +efx_mcdi_get_capabilities( + __in efx_nic_t *enp, + __out efx_dword_t *flagsp) +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_GET_CAPABILITIES_IN_LEN, + MC_CMD_GET_CAPABILITIES_OUT_LEN)]; + int rc; + + (void) memset(payload, 0, sizeof (payload)); + req.emr_cmd = MC_CMD_GET_CAPABILITIES; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_GET_CAPABILITIES_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_GET_CAPABILITIES_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_CAPABILITIES_OUT_LEN) { + rc = EMSGSIZE; + goto fail2; + } + + *flagsp = *MCDI_OUT2(req, efx_dword_t, GET_CAPABILITIES_OUT_FLAGS1); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + + +static __checkReturn int +efx_mcdi_alloc_vis( + __in efx_nic_t *enp, + __in uint32_t min_vi_count, + __in uint32_t max_vi_count, + __out_opt uint32_t *vi_basep, + __out uint32_t *vi_countp) + +{ + efx_mcdi_req_t req; + uint8_t payload[MAX(MC_CMD_ALLOC_VIS_IN_LEN, + MC_CMD_ALLOC_VIS_OUT_LEN)]; + int 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_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; + } + + if (vi_basep != NULL) + *vi_basep = MCDI_OUT_DWORD(req, ALLOC_VIS_OUT_VI_BASE); + + if (vi_countp != NULL) + *vi_countp = MCDI_OUT_DWORD(req, ALLOC_VIS_OUT_VI_COUNT); + + return (0); + +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + + +static __checkReturn int +efx_mcdi_free_vis( + __in efx_nic_t *enp) +{ + efx_mcdi_req_t req; + int 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, int, rc); + + return (rc); +} + + +static __checkReturn int +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)]; + int 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, int, rc); + + return (rc); +} + +static __checkReturn int +efx_mcdi_free_piobuf( + __in efx_nic_t *enp, + __out 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)]; + int 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, int, rc); + + return (rc); +} + +static __checkReturn int +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)]; + int 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, int, rc); + + return (rc); +} + +static __checkReturn int +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)]; + int 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(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail1; + } + + return (0); + +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + +static void +hunt_nic_alloc_piobufs( + __in efx_nic_t *enp, + __in uint32_t max_piobuf_count) +{ + efx_piobuf_handle_t *handlep; + unsigned int i; + int rc; + + EFSYS_ASSERT3U(max_piobuf_count, <=, + EFX_ARRAY_SIZE(enp->en_u.hunt.enu_piobuf_handle)); + + enp->en_u.hunt.enu_piobuf_count = 0; + + for (i = 0; i < max_piobuf_count; i++) { + handlep = &enp->en_u.hunt.enu_piobuf_handle[i]; + + if ((rc = efx_mcdi_alloc_piobuf(enp, handlep)) != 0) + goto fail1; + + enp->en_u.hunt.enu_pio_alloc_map[i] = 0; + enp->en_u.hunt.enu_piobuf_count++; + } + + return; + +fail1: + for (i = 0; i < enp->en_u.hunt.enu_piobuf_count; i++) { + handlep = &enp->en_u.hunt.enu_piobuf_handle[i]; + + efx_mcdi_free_piobuf(enp, *handlep); + *handlep = EFX_PIOBUF_HANDLE_INVALID; + } + enp->en_u.hunt.enu_piobuf_count = 0; +} + + +static void +hunt_nic_free_piobufs( + __in efx_nic_t *enp) +{ + efx_piobuf_handle_t *handlep; + unsigned int i; + + for (i = 0; i < enp->en_u.hunt.enu_piobuf_count; i++) { + handlep = &enp->en_u.hunt.enu_piobuf_handle[i]; + + efx_mcdi_free_piobuf(enp, *handlep); + *handlep = EFX_PIOBUF_HANDLE_INVALID; + } + enp->en_u.hunt.enu_piobuf_count = 0; +} + +/* Sub-allocate a block from a piobuf */ + __checkReturn int +hunt_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_drv_cfg_t *edcp = &enp->en_drv_cfg; + uint32_t blk_per_buf; + uint32_t buf, blk; + int rc; + + EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_HUNTINGTON); + EFSYS_ASSERT(bufnump); + EFSYS_ASSERT(handlep); + EFSYS_ASSERT(blknump); + EFSYS_ASSERT(offsetp); + EFSYS_ASSERT(sizep); + + if ((edcp->edc_pio_alloc_size == 0) || + (enp->en_u.hunt.enu_piobuf_count == 0)) { + rc = ENOMEM; + goto fail1; + } + blk_per_buf = HUNT_PIOBUF_SIZE / edcp->edc_pio_alloc_size; + + for (buf = 0; buf < enp->en_u.hunt.enu_piobuf_count; buf++) { + uint32_t *map = &enp->en_u.hunt.enu_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_u.hunt.enu_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, int, rc); + + return (rc); +} + +/* Free a piobuf sub-allocated block */ + __checkReturn int +hunt_nic_pio_free( + __inout efx_nic_t *enp, + __in uint32_t bufnum, + __in uint32_t blknum) +{ + uint32_t *map; + int rc; + + if ((bufnum >= enp->en_u.hunt.enu_piobuf_count) || + (blknum >= (8 * sizeof (*map)))) { + rc = EINVAL; + goto fail1; + } + + map = &enp->en_u.hunt.enu_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, int, rc); + + return (rc); +} + + __checkReturn int +hunt_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 int +hunt_nic_pio_unlink( + __inout efx_nic_t *enp, + __in uint32_t vi_index) +{ + return (efx_mcdi_unlink_piobuf(enp, vi_index)); +} + +static __checkReturn int +hunt_get_datapath_caps( + __in efx_nic_t *enp) +{ + efx_nic_cfg_t *encp = &(enp->en_nic_cfg); + efx_dword_t datapath_capabilities; + int rc; + + if ((rc = efx_mcdi_get_capabilities(enp, &datapath_capabilities)) != 0) + goto fail1; + + /* + * Huntington RXDP firmware inserts a 0 or 14 byte prefix. + * We only support the 14 byte prefix here. + */ + if (MCDI_CMD_DWORD_FIELD(&datapath_capabilities, + GET_CAPABILITIES_OUT_RX_PREFIX_LEN_14) != 1) { + rc = ENOTSUP; + goto fail2; + } + encp->enc_rx_prefix_size = 14; + + /* Check if the firmware supports TSO */ + if (MCDI_CMD_DWORD_FIELD(&datapath_capabilities, + GET_CAPABILITIES_OUT_TX_TSO) == 1) + encp->enc_fw_assisted_tso_enabled = B_TRUE; + else + encp->enc_fw_assisted_tso_enabled = B_FALSE; + + /* Check if the firmware has vadapter/vport/vswitch support */ + if (MCDI_CMD_DWORD_FIELD(&datapath_capabilities, + GET_CAPABILITIES_OUT_EVB) == 1) + encp->enc_datapath_cap_evb = B_TRUE; + else + encp->enc_datapath_cap_evb = B_FALSE; + + /* Check if the firmware supports VLAN insertion */ + if (MCDI_CMD_DWORD_FIELD(&datapath_capabilities, + GET_CAPABILITIES_OUT_TX_VLAN_INSERTION) == 1) + encp->enc_hw_tx_insert_vlan_enabled = B_TRUE; + else + encp->enc_hw_tx_insert_vlan_enabled = B_FALSE; + + /* Check if the firmware supports RX event batching */ + if (MCDI_CMD_DWORD_FIELD(&datapath_capabilities, + GET_CAPABILITIES_OUT_RX_BATCHING) == 1) { + encp->enc_rx_batching_enabled = B_TRUE; + encp->enc_rx_batch_max = 16; + } else { + encp->enc_rx_batching_enabled = B_FALSE; + } + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + +/* + * The external port mapping is a one-based numbering of the external + * connectors on the board. It does not distinguish off-board separated + * outputs such as multi-headed cables. + * The number of ports that map to each external port connector + * on the board is determined by the chip family and the port modes to + * which the NIC can be configured. The mapping table lists modes with + * port numbering requirements in increasing order. + */ +static struct { + efx_family_t family; + uint32_t modes_mask; + uint32_t stride; +} __hunt_external_port_mappings[] = { + /* Supported modes requiring 1 output per port */ + { + EFX_FAMILY_HUNTINGTON, + (1 << TLV_PORT_MODE_10G) | + (1 << TLV_PORT_MODE_40G) | + (1 << TLV_PORT_MODE_10G_10G) | + (1 << TLV_PORT_MODE_40G_40G), + 1 + }, + /* Supported modes requiring 2 outputs per port */ + { + EFX_FAMILY_HUNTINGTON, + (1 << TLV_PORT_MODE_10G_10G_10G_10G) | + (1 << TLV_PORT_MODE_40G_10G_10G) | + (1 << TLV_PORT_MODE_10G_10G_40G), + 2 + } +}; + +static __checkReturn int +hunt_external_port_mapping( + __in efx_nic_t *enp, + __in uint32_t port, + __out uint8_t *external_portp) +{ + int rc; + int i; + uint32_t port_modes; + uint32_t matches; + uint32_t stride = 1; /* default 1-1 mapping */ + + if ((rc = efx_mcdi_get_port_modes(enp, &port_modes)) != 0) { + /* No port mode information available - use default mapping */ + goto out; + } + + /* + * Infer the internal port -> external port mapping from + * the possible port modes for this NIC. + */ + for (i = 0; i < EFX_ARRAY_SIZE(__hunt_external_port_mappings); ++i) { + if (__hunt_external_port_mappings[i].family != + enp->en_family) + continue; + matches = (__hunt_external_port_mappings[i].modes_mask & + port_modes); + if (matches != 0) { + stride = __hunt_external_port_mappings[i].stride; + 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 + * one-based numbering + */ + *external_portp = (uint8_t)(port / stride) + 1; + return (0); + +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + +static __checkReturn int +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]; + 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; + int 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 = hunt_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); + } else { + rc = efx_mcdi_get_mac_address_vf(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; + } + 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 = 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; + + /* + * 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 = hunt_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 = HUNTINGTON_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; + + /* + * 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 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 = 208; + + 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, int, rc); + + return (rc); +} + + + __checkReturn int +hunt_nic_probe( + __in efx_nic_t *enp) +{ + efx_nic_cfg_t *encp = &(enp->en_nic_cfg); + efx_drv_cfg_t *edcp = &(enp->en_drv_cfg); + int rc; + + EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_HUNTINGTON); + + /* 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 = hunt_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, int, rc); + + return (rc); +} + + __checkReturn int +hunt_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; + int 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, HUNT_MIN_PIO_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, int, rc); + + return (rc); +} + + + __checkReturn int +hunt_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)]; + int rc; + + /* hunt_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, int, rc); + + return (rc); +} + + __checkReturn int +hunt_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; + uint32_t i; + int rc; + + EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_HUNTINGTON); + + /* 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 */ + hunt_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_u.hunt.enu_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)) != 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_u.hunt.enu_vi_base = vi_base; + enp->en_u.hunt.enu_vi_count = vi_count; + + if (vi_count < min_vi_count + enp->en_u.hunt.enu_piobuf_count) { + /* Not enough extra VIs to map piobufs */ + hunt_nic_free_piobufs(enp); + } + + enp->en_u.hunt.enu_pio_write_vi_base = + vi_count - enp->en_u.hunt.enu_piobuf_count; + + /* Save UC memory mapping details */ + enp->en_u.hunt.enu_uc_mem_map_offset = 0; + if (enp->en_u.hunt.enu_piobuf_count > 0) { + enp->en_u.hunt.enu_uc_mem_map_size = + (ER_DZ_TX_PIOBUF_STEP * + enp->en_u.hunt.enu_pio_write_vi_base); + } else { + enp->en_u.hunt.enu_uc_mem_map_size = + (ER_DZ_TX_PIOBUF_STEP * + enp->en_u.hunt.enu_vi_count); + } + + /* Save WC memory mapping details */ + enp->en_u.hunt.enu_wc_mem_map_offset = + enp->en_u.hunt.enu_uc_mem_map_offset + + enp->en_u.hunt.enu_uc_mem_map_size; + + enp->en_u.hunt.enu_wc_mem_map_size = + (ER_DZ_TX_PIOBUF_STEP * + enp->en_u.hunt.enu_piobuf_count); + + /* Link piobufs to extra VIs in WC mapping */ + if (enp->en_u.hunt.enu_piobuf_count > 0) { + for (i = 0; i < enp->en_u.hunt.enu_piobuf_count; i++) { + rc = efx_mcdi_link_piobuf(enp, + enp->en_u.hunt.enu_pio_write_vi_base + i, + enp->en_u.hunt.enu_piobuf_handle[i]); + if (rc != 0) + break; + } + } + + /* Allocate a vAdapter attached to our upstream vPort/pPort */ + if ((rc = efx_mcdi_vadaptor_alloc(enp, EVB_PORT_ID_ASSIGNED)) != 0) + goto fail5; + + enp->en_vport_id = EVB_PORT_ID_ASSIGNED; + + return (0); + +fail5: + EFSYS_PROBE(fail5); +fail4: + EFSYS_PROBE(fail4); +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); + + hunt_nic_free_piobufs(enp); + +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + + __checkReturn int +hunt_nic_get_vi_pool( + __in efx_nic_t *enp, + __out uint32_t *vi_countp) +{ + EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_HUNTINGTON); + + /* + * Report VIs that the client driver can use. + * Do not include VIs used for PIO buffer writes. + */ + *vi_countp = enp->en_u.hunt.enu_pio_write_vi_base; + + return (0); +} + + __checkReturn int +hunt_nic_get_bar_region( + __in efx_nic_t *enp, + __in efx_nic_region_t region, + __out uint32_t *offsetp, + __out size_t *sizep) +{ + int rc; + + EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_HUNTINGTON); + + /* + * 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_u.hunt.enu_uc_mem_map_offset; + *sizep = enp->en_u.hunt.enu_uc_mem_map_size; + break; + + case EFX_REGION_PIO_WRITE_VI: + /* WC mapped memory BAR region for piobuf writes */ + *offsetp = enp->en_u.hunt.enu_wc_mem_map_offset; + *sizep = enp->en_u.hunt.enu_wc_mem_map_size; + break; + + default: + rc = EINVAL; + goto fail1; + } + + return (0); + +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + + void +hunt_nic_fini( + __in efx_nic_t *enp) +{ + (void) efx_mcdi_vadaptor_free(enp, enp->en_vport_id); + enp->en_vport_id = 0; + + /* FIXME: do we need to unlink piobufs ? */ + hunt_nic_free_piobufs(enp); + + (void) efx_mcdi_free_vis(enp); + enp->en_u.hunt.enu_vi_count = 0; +} + + void +hunt_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 int +hunt_nic_register_test( + __in efx_nic_t *enp) +{ + int rc; + + /* FIXME */ + _NOTE(ARGUNUSED(enp)) + if (B_FALSE) { + rc = ENOTSUP; + goto fail1; + } + /* FIXME */ + + return (0); + +fail1: + EFSYS_PROBE1(fail1, int, rc); + + return (rc); +} + +#endif /* EFSYS_OPT_DIAG */ + + + +#endif /* EFSYS_OPT_HUNTINGTON */ |
