| /**************************************************************************** |
| * Driver for Solarflare Solarstorm network controllers and boards |
| * Copyright 2008-2011 Solarflare Communications Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published |
| * by the Free Software Foundation, incorporated herein by reference. |
| */ |
| |
| #include <linux/delay.h> |
| #include "net_driver.h" |
| #include "nic.h" |
| #include "io.h" |
| #include "regs.h" |
| #include "mcdi_pcol.h" |
| #include "phy.h" |
| |
| /************************************************************************** |
| * |
| * Management-Controller-to-Driver Interface |
| * |
| ************************************************************************** |
| */ |
| |
| #define MCDI_RPC_TIMEOUT 10 /*seconds */ |
| |
| #define MCDI_PDU(efx) \ |
| (efx_port_num(efx) ? MC_SMEM_P1_PDU_OFST : MC_SMEM_P0_PDU_OFST) |
| #define MCDI_DOORBELL(efx) \ |
| (efx_port_num(efx) ? MC_SMEM_P1_DOORBELL_OFST : MC_SMEM_P0_DOORBELL_OFST) |
| #define MCDI_STATUS(efx) \ |
| (efx_port_num(efx) ? MC_SMEM_P1_STATUS_OFST : MC_SMEM_P0_STATUS_OFST) |
| |
| /* A reboot/assertion causes the MCDI status word to be set after the |
| * command word is set or a REBOOT event is sent. If we notice a reboot |
| * via these mechanisms then wait 10ms for the status word to be set. */ |
| #define MCDI_STATUS_DELAY_US 100 |
| #define MCDI_STATUS_DELAY_COUNT 100 |
| #define MCDI_STATUS_SLEEP_MS \ |
| (MCDI_STATUS_DELAY_US * MCDI_STATUS_DELAY_COUNT / 1000) |
| |
| #define SEQ_MASK \ |
| EFX_MASK32(EFX_WIDTH(MCDI_HEADER_SEQ)) |
| |
| static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx) |
| { |
| struct siena_nic_data *nic_data; |
| EFX_BUG_ON_PARANOID(efx_nic_rev(efx) < EFX_REV_SIENA_A0); |
| nic_data = efx->nic_data; |
| return &nic_data->mcdi; |
| } |
| |
| void efx_mcdi_init(struct efx_nic *efx) |
| { |
| struct efx_mcdi_iface *mcdi; |
| |
| if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) |
| return; |
| |
| mcdi = efx_mcdi(efx); |
| init_waitqueue_head(&mcdi->wq); |
| spin_lock_init(&mcdi->iface_lock); |
| atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT); |
| mcdi->mode = MCDI_MODE_POLL; |
| |
| (void) efx_mcdi_poll_reboot(efx); |
| } |
| |
| static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd, |
| const u8 *inbuf, size_t inlen) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| unsigned pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); |
| unsigned doorbell = FR_CZ_MC_TREG_SMEM + MCDI_DOORBELL(efx); |
| unsigned int i; |
| efx_dword_t hdr; |
| u32 xflags, seqno; |
| |
| BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT); |
| BUG_ON(inlen & 3 || inlen >= MC_SMEM_PDU_LEN); |
| |
| seqno = mcdi->seqno & SEQ_MASK; |
| xflags = 0; |
| if (mcdi->mode == MCDI_MODE_EVENTS) |
| xflags |= MCDI_HEADER_XFLAGS_EVREQ; |
| |
| EFX_POPULATE_DWORD_6(hdr, |
| MCDI_HEADER_RESPONSE, 0, |
| MCDI_HEADER_RESYNC, 1, |
| MCDI_HEADER_CODE, cmd, |
| MCDI_HEADER_DATALEN, inlen, |
| MCDI_HEADER_SEQ, seqno, |
| MCDI_HEADER_XFLAGS, xflags); |
| |
| efx_writed(efx, &hdr, pdu); |
| |
| for (i = 0; i < inlen; i += 4) |
| _efx_writed(efx, *((__le32 *)(inbuf + i)), pdu + 4 + i); |
| |
| /* Ensure the payload is written out before the header */ |
| wmb(); |
| |
| /* ring the doorbell with a distinctive value */ |
| _efx_writed(efx, (__force __le32) 0x45789abc, doorbell); |
| } |
| |
| static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); |
| int i; |
| |
| BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT); |
| BUG_ON(outlen & 3 || outlen >= MC_SMEM_PDU_LEN); |
| |
| for (i = 0; i < outlen; i += 4) |
| *((__le32 *)(outbuf + i)) = _efx_readd(efx, pdu + 4 + i); |
| } |
| |
| static int efx_mcdi_poll(struct efx_nic *efx) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| unsigned int time, finish; |
| unsigned int respseq, respcmd, error; |
| unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); |
| unsigned int rc, spins; |
| efx_dword_t reg; |
| |
| /* Check for a reboot atomically with respect to efx_mcdi_copyout() */ |
| rc = -efx_mcdi_poll_reboot(efx); |
| if (rc) |
| goto out; |
| |
| /* Poll for completion. Poll quickly (once a us) for the 1st jiffy, |
| * because generally mcdi responses are fast. After that, back off |
| * and poll once a jiffy (approximately) |
| */ |
| spins = TICK_USEC; |
| finish = get_seconds() + MCDI_RPC_TIMEOUT; |
| |
| while (1) { |
| if (spins != 0) { |
| --spins; |
| udelay(1); |
| } else { |
| schedule_timeout_uninterruptible(1); |
| } |
| |
| time = get_seconds(); |
| |
| rmb(); |
| efx_readd(efx, ®, pdu); |
| |
| /* All 1's indicates that shared memory is in reset (and is |
| * not a valid header). Wait for it to come out reset before |
| * completing the command */ |
| if (EFX_DWORD_FIELD(reg, EFX_DWORD_0) != 0xffffffff && |
| EFX_DWORD_FIELD(reg, MCDI_HEADER_RESPONSE)) |
| break; |
| |
| if (time >= finish) |
| return -ETIMEDOUT; |
| } |
| |
| mcdi->resplen = EFX_DWORD_FIELD(reg, MCDI_HEADER_DATALEN); |
| respseq = EFX_DWORD_FIELD(reg, MCDI_HEADER_SEQ); |
| respcmd = EFX_DWORD_FIELD(reg, MCDI_HEADER_CODE); |
| error = EFX_DWORD_FIELD(reg, MCDI_HEADER_ERROR); |
| |
| if (error && mcdi->resplen == 0) { |
| netif_err(efx, hw, efx->net_dev, "MC rebooted\n"); |
| rc = EIO; |
| } else if ((respseq ^ mcdi->seqno) & SEQ_MASK) { |
| netif_err(efx, hw, efx->net_dev, |
| "MC response mismatch tx seq 0x%x rx seq 0x%x\n", |
| respseq, mcdi->seqno); |
| rc = EIO; |
| } else if (error) { |
| efx_readd(efx, ®, pdu + 4); |
| switch (EFX_DWORD_FIELD(reg, EFX_DWORD_0)) { |
| #define TRANSLATE_ERROR(name) \ |
| case MC_CMD_ERR_ ## name: \ |
| rc = name; \ |
| break |
| TRANSLATE_ERROR(ENOENT); |
| TRANSLATE_ERROR(EINTR); |
| TRANSLATE_ERROR(EACCES); |
| TRANSLATE_ERROR(EBUSY); |
| TRANSLATE_ERROR(EINVAL); |
| TRANSLATE_ERROR(EDEADLK); |
| TRANSLATE_ERROR(ENOSYS); |
| TRANSLATE_ERROR(ETIME); |
| #undef TRANSLATE_ERROR |
| default: |
| rc = EIO; |
| break; |
| } |
| } else |
| rc = 0; |
| |
| out: |
| mcdi->resprc = rc; |
| if (rc) |
| mcdi->resplen = 0; |
| |
| /* Return rc=0 like wait_event_timeout() */ |
| return 0; |
| } |
| |
| /* Test and clear MC-rebooted flag for this port/function */ |
| int efx_mcdi_poll_reboot(struct efx_nic *efx) |
| { |
| unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_STATUS(efx); |
| efx_dword_t reg; |
| uint32_t value; |
| |
| if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) |
| return false; |
| |
| efx_readd(efx, ®, addr); |
| value = EFX_DWORD_FIELD(reg, EFX_DWORD_0); |
| |
| if (value == 0) |
| return 0; |
| |
| EFX_ZERO_DWORD(reg); |
| efx_writed(efx, ®, addr); |
| |
| if (value == MC_STATUS_DWORD_ASSERT) |
| return -EINTR; |
| else |
| return -EIO; |
| } |
| |
| static void efx_mcdi_acquire(struct efx_mcdi_iface *mcdi) |
| { |
| /* Wait until the interface becomes QUIESCENT and we win the race |
| * to mark it RUNNING. */ |
| wait_event(mcdi->wq, |
| atomic_cmpxchg(&mcdi->state, |
| MCDI_STATE_QUIESCENT, |
| MCDI_STATE_RUNNING) |
| == MCDI_STATE_QUIESCENT); |
| } |
| |
| static int efx_mcdi_await_completion(struct efx_nic *efx) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| |
| if (wait_event_timeout( |
| mcdi->wq, |
| atomic_read(&mcdi->state) == MCDI_STATE_COMPLETED, |
| msecs_to_jiffies(MCDI_RPC_TIMEOUT * 1000)) == 0) |
| return -ETIMEDOUT; |
| |
| /* Check if efx_mcdi_set_mode() switched us back to polled completions. |
| * In which case, poll for completions directly. If efx_mcdi_ev_cpl() |
| * completed the request first, then we'll just end up completing the |
| * request again, which is safe. |
| * |
| * We need an smp_rmb() to synchronise with efx_mcdi_mode_poll(), which |
| * wait_event_timeout() implicitly provides. |
| */ |
| if (mcdi->mode == MCDI_MODE_POLL) |
| return efx_mcdi_poll(efx); |
| |
| return 0; |
| } |
| |
| static bool efx_mcdi_complete(struct efx_mcdi_iface *mcdi) |
| { |
| /* If the interface is RUNNING, then move to COMPLETED and wake any |
| * waiters. If the interface isn't in RUNNING then we've received a |
| * duplicate completion after we've already transitioned back to |
| * QUIESCENT. [A subsequent invocation would increment seqno, so would |
| * have failed the seqno check]. |
| */ |
| if (atomic_cmpxchg(&mcdi->state, |
| MCDI_STATE_RUNNING, |
| MCDI_STATE_COMPLETED) == MCDI_STATE_RUNNING) { |
| wake_up(&mcdi->wq); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static void efx_mcdi_release(struct efx_mcdi_iface *mcdi) |
| { |
| atomic_set(&mcdi->state, MCDI_STATE_QUIESCENT); |
| wake_up(&mcdi->wq); |
| } |
| |
| static void efx_mcdi_ev_cpl(struct efx_nic *efx, unsigned int seqno, |
| unsigned int datalen, unsigned int errno) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| bool wake = false; |
| |
| spin_lock(&mcdi->iface_lock); |
| |
| if ((seqno ^ mcdi->seqno) & SEQ_MASK) { |
| if (mcdi->credits) |
| /* The request has been cancelled */ |
| --mcdi->credits; |
| else |
| netif_err(efx, hw, efx->net_dev, |
| "MC response mismatch tx seq 0x%x rx " |
| "seq 0x%x\n", seqno, mcdi->seqno); |
| } else { |
| mcdi->resprc = errno; |
| mcdi->resplen = datalen; |
| |
| wake = true; |
| } |
| |
| spin_unlock(&mcdi->iface_lock); |
| |
| if (wake) |
| efx_mcdi_complete(mcdi); |
| } |
| |
| int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, |
| const u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen, |
| size_t *outlen_actual) |
| { |
| efx_mcdi_rpc_start(efx, cmd, inbuf, inlen); |
| return efx_mcdi_rpc_finish(efx, cmd, inlen, |
| outbuf, outlen, outlen_actual); |
| } |
| |
| void efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd, const u8 *inbuf, |
| size_t inlen) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| |
| BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0); |
| |
| efx_mcdi_acquire(mcdi); |
| |
| /* Serialise with efx_mcdi_ev_cpl() and efx_mcdi_ev_death() */ |
| spin_lock_bh(&mcdi->iface_lock); |
| ++mcdi->seqno; |
| spin_unlock_bh(&mcdi->iface_lock); |
| |
| efx_mcdi_copyin(efx, cmd, inbuf, inlen); |
| } |
| |
| int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen, |
| u8 *outbuf, size_t outlen, size_t *outlen_actual) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| int rc; |
| |
| BUG_ON(efx_nic_rev(efx) < EFX_REV_SIENA_A0); |
| |
| if (mcdi->mode == MCDI_MODE_POLL) |
| rc = efx_mcdi_poll(efx); |
| else |
| rc = efx_mcdi_await_completion(efx); |
| |
| if (rc != 0) { |
| /* Close the race with efx_mcdi_ev_cpl() executing just too late |
| * and completing a request we've just cancelled, by ensuring |
| * that the seqno check therein fails. |
| */ |
| spin_lock_bh(&mcdi->iface_lock); |
| ++mcdi->seqno; |
| ++mcdi->credits; |
| spin_unlock_bh(&mcdi->iface_lock); |
| |
| netif_err(efx, hw, efx->net_dev, |
| "MC command 0x%x inlen %d mode %d timed out\n", |
| cmd, (int)inlen, mcdi->mode); |
| } else { |
| size_t resplen; |
| |
| /* At the very least we need a memory barrier here to ensure |
| * we pick up changes from efx_mcdi_ev_cpl(). Protect against |
| * a spurious efx_mcdi_ev_cpl() running concurrently by |
| * acquiring the iface_lock. */ |
| spin_lock_bh(&mcdi->iface_lock); |
| rc = -mcdi->resprc; |
| resplen = mcdi->resplen; |
| spin_unlock_bh(&mcdi->iface_lock); |
| |
| if (rc == 0) { |
| efx_mcdi_copyout(efx, outbuf, |
| min(outlen, mcdi->resplen + 3) & ~0x3); |
| if (outlen_actual != NULL) |
| *outlen_actual = resplen; |
| } else if (cmd == MC_CMD_REBOOT && rc == -EIO) |
| ; /* Don't reset if MC_CMD_REBOOT returns EIO */ |
| else if (rc == -EIO || rc == -EINTR) { |
| netif_err(efx, hw, efx->net_dev, "MC fatal error %d\n", |
| -rc); |
| efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE); |
| } else |
| netif_dbg(efx, hw, efx->net_dev, |
| "MC command 0x%x inlen %d failed rc=%d\n", |
| cmd, (int)inlen, -rc); |
| |
| if (rc == -EIO || rc == -EINTR) { |
| msleep(MCDI_STATUS_SLEEP_MS); |
| efx_mcdi_poll_reboot(efx); |
| } |
| } |
| |
| efx_mcdi_release(mcdi); |
| return rc; |
| } |
| |
| void efx_mcdi_mode_poll(struct efx_nic *efx) |
| { |
| struct efx_mcdi_iface *mcdi; |
| |
| if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) |
| return; |
| |
| mcdi = efx_mcdi(efx); |
| if (mcdi->mode == MCDI_MODE_POLL) |
| return; |
| |
| /* We can switch from event completion to polled completion, because |
| * mcdi requests are always completed in shared memory. We do this by |
| * switching the mode to POLL'd then completing the request. |
| * efx_mcdi_await_completion() will then call efx_mcdi_poll(). |
| * |
| * We need an smp_wmb() to synchronise with efx_mcdi_await_completion(), |
| * which efx_mcdi_complete() provides for us. |
| */ |
| mcdi->mode = MCDI_MODE_POLL; |
| |
| efx_mcdi_complete(mcdi); |
| } |
| |
| void efx_mcdi_mode_event(struct efx_nic *efx) |
| { |
| struct efx_mcdi_iface *mcdi; |
| |
| if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) |
| return; |
| |
| mcdi = efx_mcdi(efx); |
| |
| if (mcdi->mode == MCDI_MODE_EVENTS) |
| return; |
| |
| /* We can't switch from polled to event completion in the middle of a |
| * request, because the completion method is specified in the request. |
| * So acquire the interface to serialise the requestors. We don't need |
| * to acquire the iface_lock to change the mode here, but we do need a |
| * write memory barrier ensure that efx_mcdi_rpc() sees it, which |
| * efx_mcdi_acquire() provides. |
| */ |
| efx_mcdi_acquire(mcdi); |
| mcdi->mode = MCDI_MODE_EVENTS; |
| efx_mcdi_release(mcdi); |
| } |
| |
| static void efx_mcdi_ev_death(struct efx_nic *efx, int rc) |
| { |
| struct efx_mcdi_iface *mcdi = efx_mcdi(efx); |
| |
| /* If there is an outstanding MCDI request, it has been terminated |
| * either by a BADASSERT or REBOOT event. If the mcdi interface is |
| * in polled mode, then do nothing because the MC reboot handler will |
| * set the header correctly. However, if the mcdi interface is waiting |
| * for a CMDDONE event it won't receive it [and since all MCDI events |
| * are sent to the same queue, we can't be racing with |
| * efx_mcdi_ev_cpl()] |
| * |
| * There's a race here with efx_mcdi_rpc(), because we might receive |
| * a REBOOT event *before* the request has been copied out. In polled |
| * mode (during startup) this is irrelevant, because efx_mcdi_complete() |
| * is ignored. In event mode, this condition is just an edge-case of |
| * receiving a REBOOT event after posting the MCDI request. Did the mc |
| * reboot before or after the copyout? The best we can do always is |
| * just return failure. |
| */ |
| spin_lock(&mcdi->iface_lock); |
| if (efx_mcdi_complete(mcdi)) { |
| if (mcdi->mode == MCDI_MODE_EVENTS) { |
| mcdi->resprc = rc; |
| mcdi->resplen = 0; |
| ++mcdi->credits; |
| } |
| } else { |
| int count; |
| |
| /* Nobody was waiting for an MCDI request, so trigger a reset */ |
| efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE); |
| |
| /* Consume the status word since efx_mcdi_rpc_finish() won't */ |
| for (count = 0; count < MCDI_STATUS_DELAY_COUNT; ++count) { |
| if (efx_mcdi_poll_reboot(efx)) |
| break; |
| udelay(MCDI_STATUS_DELAY_US); |
| } |
| } |
| |
| spin_unlock(&mcdi->iface_lock); |
| } |
| |
| static unsigned int efx_mcdi_event_link_speed[] = { |
| [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, |
| [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, |
| [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, |
| }; |
| |
| |
| static void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) |
| { |
| u32 flags, fcntl, speed, lpa; |
| |
| speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); |
| EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); |
| speed = efx_mcdi_event_link_speed[speed]; |
| |
| flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); |
| fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); |
| lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); |
| |
| /* efx->link_state is only modified by efx_mcdi_phy_get_link(), |
| * which is only run after flushing the event queues. Therefore, it |
| * is safe to modify the link state outside of the mac_lock here. |
| */ |
| efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); |
| |
| efx_mcdi_phy_check_fcntl(efx, lpa); |
| |
| efx_link_status_changed(efx); |
| } |
| |
| /* Called from falcon_process_eventq for MCDI events */ |
| void efx_mcdi_process_event(struct efx_channel *channel, |
| efx_qword_t *event) |
| { |
| struct efx_nic *efx = channel->efx; |
| int code = EFX_QWORD_FIELD(*event, MCDI_EVENT_CODE); |
| u32 data = EFX_QWORD_FIELD(*event, MCDI_EVENT_DATA); |
| |
| switch (code) { |
| case MCDI_EVENT_CODE_BADSSERT: |
| netif_err(efx, hw, efx->net_dev, |
| "MC watchdog or assertion failure at 0x%x\n", data); |
| efx_mcdi_ev_death(efx, EINTR); |
| break; |
| |
| case MCDI_EVENT_CODE_PMNOTICE: |
| netif_info(efx, wol, efx->net_dev, "MCDI PM event.\n"); |
| break; |
| |
| case MCDI_EVENT_CODE_CMDDONE: |
| efx_mcdi_ev_cpl(efx, |
| MCDI_EVENT_FIELD(*event, CMDDONE_SEQ), |
| MCDI_EVENT_FIELD(*event, CMDDONE_DATALEN), |
| MCDI_EVENT_FIELD(*event, CMDDONE_ERRNO)); |
| break; |
| |
| case MCDI_EVENT_CODE_LINKCHANGE: |
| efx_mcdi_process_link_change(efx, event); |
| break; |
| case MCDI_EVENT_CODE_SENSOREVT: |
| efx_mcdi_sensor_event(efx, event); |
| break; |
| case MCDI_EVENT_CODE_SCHEDERR: |
| netif_info(efx, hw, efx->net_dev, |
| "MC Scheduler error address=0x%x\n", data); |
| break; |
| case MCDI_EVENT_CODE_REBOOT: |
| netif_info(efx, hw, efx->net_dev, "MC Reboot\n"); |
| efx_mcdi_ev_death(efx, EIO); |
| break; |
| case MCDI_EVENT_CODE_MAC_STATS_DMA: |
| /* MAC stats are gather lazily. We can ignore this. */ |
| break; |
| case MCDI_EVENT_CODE_FLR: |
| efx_sriov_flr(efx, MCDI_EVENT_FIELD(*event, FLR_VF)); |
| break; |
| case MCDI_EVENT_CODE_PTP_RX: |
| case MCDI_EVENT_CODE_PTP_FAULT: |
| case MCDI_EVENT_CODE_PTP_PPS: |
| efx_ptp_event(efx, event); |
| break; |
| |
| default: |
| netif_err(efx, hw, efx->net_dev, "Unknown MCDI event 0x%x\n", |
| code); |
| } |
| } |
| |
| /************************************************************************** |
| * |
| * Specific request functions |
| * |
| ************************************************************************** |
| */ |
| |
| void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len) |
| { |
| u8 outbuf[ALIGN(MC_CMD_GET_VERSION_OUT_LEN, 4)]; |
| size_t outlength; |
| const __le16 *ver_words; |
| int rc; |
| |
| BUILD_BUG_ON(MC_CMD_GET_VERSION_IN_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_GET_VERSION, NULL, 0, |
| outbuf, sizeof(outbuf), &outlength); |
| if (rc) |
| goto fail; |
| |
| if (outlength < MC_CMD_GET_VERSION_OUT_LEN) { |
| rc = -EIO; |
| goto fail; |
| } |
| |
| ver_words = (__le16 *)MCDI_PTR(outbuf, GET_VERSION_OUT_VERSION); |
| snprintf(buf, len, "%u.%u.%u.%u", |
| le16_to_cpu(ver_words[0]), le16_to_cpu(ver_words[1]), |
| le16_to_cpu(ver_words[2]), le16_to_cpu(ver_words[3])); |
| return; |
| |
| fail: |
| netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| buf[0] = 0; |
| } |
| |
| int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating, |
| bool *was_attached) |
| { |
| u8 inbuf[MC_CMD_DRV_ATTACH_IN_LEN]; |
| u8 outbuf[MC_CMD_DRV_ATTACH_OUT_LEN]; |
| size_t outlen; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_NEW_STATE, |
| driver_operating ? 1 : 0); |
| MCDI_SET_DWORD(inbuf, DRV_ATTACH_IN_UPDATE, 1); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_DRV_ATTACH, inbuf, sizeof(inbuf), |
| outbuf, sizeof(outbuf), &outlen); |
| if (rc) |
| goto fail; |
| if (outlen < MC_CMD_DRV_ATTACH_OUT_LEN) { |
| rc = -EIO; |
| goto fail; |
| } |
| |
| if (was_attached != NULL) |
| *was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE); |
| return 0; |
| |
| fail: |
| netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address, |
| u16 *fw_subtype_list, u32 *capabilities) |
| { |
| uint8_t outbuf[MC_CMD_GET_BOARD_CFG_OUT_LENMIN]; |
| size_t outlen, offset, i; |
| int port_num = efx_port_num(efx); |
| int rc; |
| |
| BUILD_BUG_ON(MC_CMD_GET_BOARD_CFG_IN_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_GET_BOARD_CFG, NULL, 0, |
| outbuf, sizeof(outbuf), &outlen); |
| if (rc) |
| goto fail; |
| |
| if (outlen < MC_CMD_GET_BOARD_CFG_OUT_LENMIN) { |
| rc = -EIO; |
| goto fail; |
| } |
| |
| offset = (port_num) |
| ? MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT1_OFST |
| : MC_CMD_GET_BOARD_CFG_OUT_MAC_ADDR_BASE_PORT0_OFST; |
| if (mac_address) |
| memcpy(mac_address, outbuf + offset, ETH_ALEN); |
| if (fw_subtype_list) { |
| /* Byte-swap and truncate or zero-pad as necessary */ |
| offset = MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_OFST; |
| for (i = 0; |
| i < MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MAXNUM; |
| i++) { |
| fw_subtype_list[i] = |
| (offset + 2 <= outlen) ? |
| le16_to_cpup((__le16 *)(outbuf + offset)) : 0; |
| offset += 2; |
| } |
| } |
| if (capabilities) { |
| if (port_num) |
| *capabilities = MCDI_DWORD(outbuf, |
| GET_BOARD_CFG_OUT_CAPABILITIES_PORT1); |
| else |
| *capabilities = MCDI_DWORD(outbuf, |
| GET_BOARD_CFG_OUT_CAPABILITIES_PORT0); |
| } |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d len=%d\n", |
| __func__, rc, (int)outlen); |
| |
| return rc; |
| } |
| |
| int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq) |
| { |
| u8 inbuf[MC_CMD_LOG_CTRL_IN_LEN]; |
| u32 dest = 0; |
| int rc; |
| |
| if (uart) |
| dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_UART; |
| if (evq) |
| dest |= MC_CMD_LOG_CTRL_IN_LOG_DEST_EVQ; |
| |
| MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST, dest); |
| MCDI_SET_DWORD(inbuf, LOG_CTRL_IN_LOG_DEST_EVQ, dest_evq); |
| |
| BUILD_BUG_ON(MC_CMD_LOG_CTRL_OUT_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_LOG_CTRL, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out) |
| { |
| u8 outbuf[MC_CMD_NVRAM_TYPES_OUT_LEN]; |
| size_t outlen; |
| int rc; |
| |
| BUILD_BUG_ON(MC_CMD_NVRAM_TYPES_IN_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TYPES, NULL, 0, |
| outbuf, sizeof(outbuf), &outlen); |
| if (rc) |
| goto fail; |
| if (outlen < MC_CMD_NVRAM_TYPES_OUT_LEN) { |
| rc = -EIO; |
| goto fail; |
| } |
| |
| *nvram_types_out = MCDI_DWORD(outbuf, NVRAM_TYPES_OUT_TYPES); |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
| __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type, |
| size_t *size_out, size_t *erase_size_out, |
| bool *protected_out) |
| { |
| u8 inbuf[MC_CMD_NVRAM_INFO_IN_LEN]; |
| u8 outbuf[MC_CMD_NVRAM_INFO_OUT_LEN]; |
| size_t outlen; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, NVRAM_INFO_IN_TYPE, type); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_INFO, inbuf, sizeof(inbuf), |
| outbuf, sizeof(outbuf), &outlen); |
| if (rc) |
| goto fail; |
| if (outlen < MC_CMD_NVRAM_INFO_OUT_LEN) { |
| rc = -EIO; |
| goto fail; |
| } |
| |
| *size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_SIZE); |
| *erase_size_out = MCDI_DWORD(outbuf, NVRAM_INFO_OUT_ERASESIZE); |
| *protected_out = !!(MCDI_DWORD(outbuf, NVRAM_INFO_OUT_FLAGS) & |
| (1 << MC_CMD_NVRAM_INFO_OUT_PROTECTED_LBN)); |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_nvram_update_start(struct efx_nic *efx, unsigned int type) |
| { |
| u8 inbuf[MC_CMD_NVRAM_UPDATE_START_IN_LEN]; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_START_IN_TYPE, type); |
| |
| BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_START_OUT_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_START, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type, |
| loff_t offset, u8 *buffer, size_t length) |
| { |
| u8 inbuf[MC_CMD_NVRAM_READ_IN_LEN]; |
| u8 outbuf[MC_CMD_NVRAM_READ_OUT_LEN(EFX_MCDI_NVRAM_LEN_MAX)]; |
| size_t outlen; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_TYPE, type); |
| MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_OFFSET, offset); |
| MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_LENGTH, length); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_READ, inbuf, sizeof(inbuf), |
| outbuf, sizeof(outbuf), &outlen); |
| if (rc) |
| goto fail; |
| |
| memcpy(buffer, MCDI_PTR(outbuf, NVRAM_READ_OUT_READ_BUFFER), length); |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type, |
| loff_t offset, const u8 *buffer, size_t length) |
| { |
| u8 inbuf[MC_CMD_NVRAM_WRITE_IN_LEN(EFX_MCDI_NVRAM_LEN_MAX)]; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_TYPE, type); |
| MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_OFFSET, offset); |
| MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_LENGTH, length); |
| memcpy(MCDI_PTR(inbuf, NVRAM_WRITE_IN_WRITE_BUFFER), buffer, length); |
| |
| BUILD_BUG_ON(MC_CMD_NVRAM_WRITE_OUT_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_WRITE, inbuf, |
| ALIGN(MC_CMD_NVRAM_WRITE_IN_LEN(length), 4), |
| NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type, |
| loff_t offset, size_t length) |
| { |
| u8 inbuf[MC_CMD_NVRAM_ERASE_IN_LEN]; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_TYPE, type); |
| MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_OFFSET, offset); |
| MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_LENGTH, length); |
| |
| BUILD_BUG_ON(MC_CMD_NVRAM_ERASE_OUT_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_ERASE, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_nvram_update_finish(struct efx_nic *efx, unsigned int type) |
| { |
| u8 inbuf[MC_CMD_NVRAM_UPDATE_FINISH_IN_LEN]; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, NVRAM_UPDATE_FINISH_IN_TYPE, type); |
| |
| BUILD_BUG_ON(MC_CMD_NVRAM_UPDATE_FINISH_OUT_LEN != 0); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_UPDATE_FINISH, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| static int efx_mcdi_nvram_test(struct efx_nic *efx, unsigned int type) |
| { |
| u8 inbuf[MC_CMD_NVRAM_TEST_IN_LEN]; |
| u8 outbuf[MC_CMD_NVRAM_TEST_OUT_LEN]; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, NVRAM_TEST_IN_TYPE, type); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_TEST, inbuf, sizeof(inbuf), |
| outbuf, sizeof(outbuf), NULL); |
| if (rc) |
| return rc; |
| |
| switch (MCDI_DWORD(outbuf, NVRAM_TEST_OUT_RESULT)) { |
| case MC_CMD_NVRAM_TEST_PASS: |
| case MC_CMD_NVRAM_TEST_NOTSUPP: |
| return 0; |
| default: |
| return -EIO; |
| } |
| } |
| |
| int efx_mcdi_nvram_test_all(struct efx_nic *efx) |
| { |
| u32 nvram_types; |
| unsigned int type; |
| int rc; |
| |
| rc = efx_mcdi_nvram_types(efx, &nvram_types); |
| if (rc) |
| goto fail1; |
| |
| type = 0; |
| while (nvram_types != 0) { |
| if (nvram_types & 1) { |
| rc = efx_mcdi_nvram_test(efx, type); |
| if (rc) |
| goto fail2; |
| } |
| type++; |
| nvram_types >>= 1; |
| } |
| |
| return 0; |
| |
| fail2: |
| netif_err(efx, hw, efx->net_dev, "%s: failed type=%u\n", |
| __func__, type); |
| fail1: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| static int efx_mcdi_read_assertion(struct efx_nic *efx) |
| { |
| u8 inbuf[MC_CMD_GET_ASSERTS_IN_LEN]; |
| u8 outbuf[MC_CMD_GET_ASSERTS_OUT_LEN]; |
| unsigned int flags, index, ofst; |
| const char *reason; |
| size_t outlen; |
| int retry; |
| int rc; |
| |
| /* Attempt to read any stored assertion state before we reboot |
| * the mcfw out of the assertion handler. Retry twice, once |
| * because a boot-time assertion might cause this command to fail |
| * with EINTR. And once again because GET_ASSERTS can race with |
| * MC_CMD_REBOOT running on the other port. */ |
| retry = 2; |
| do { |
| MCDI_SET_DWORD(inbuf, GET_ASSERTS_IN_CLEAR, 1); |
| rc = efx_mcdi_rpc(efx, MC_CMD_GET_ASSERTS, |
| inbuf, MC_CMD_GET_ASSERTS_IN_LEN, |
| outbuf, sizeof(outbuf), &outlen); |
| } while ((rc == -EINTR || rc == -EIO) && retry-- > 0); |
| |
| if (rc) |
| return rc; |
| if (outlen < MC_CMD_GET_ASSERTS_OUT_LEN) |
| return -EIO; |
| |
| /* Print out any recorded assertion state */ |
| flags = MCDI_DWORD(outbuf, GET_ASSERTS_OUT_GLOBAL_FLAGS); |
| if (flags == MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS) |
| return 0; |
| |
| reason = (flags == MC_CMD_GET_ASSERTS_FLAGS_SYS_FAIL) |
| ? "system-level assertion" |
| : (flags == MC_CMD_GET_ASSERTS_FLAGS_THR_FAIL) |
| ? "thread-level assertion" |
| : (flags == MC_CMD_GET_ASSERTS_FLAGS_WDOG_FIRED) |
| ? "watchdog reset" |
| : "unknown assertion"; |
| netif_err(efx, hw, efx->net_dev, |
| "MCPU %s at PC = 0x%.8x in thread 0x%.8x\n", reason, |
| MCDI_DWORD(outbuf, GET_ASSERTS_OUT_SAVED_PC_OFFS), |
| MCDI_DWORD(outbuf, GET_ASSERTS_OUT_THREAD_OFFS)); |
| |
| /* Print out the registers */ |
| ofst = MC_CMD_GET_ASSERTS_OUT_GP_REGS_OFFS_OFST; |
| for (index = 1; index < 32; index++) { |
| netif_err(efx, hw, efx->net_dev, "R%.2d (?): 0x%.8x\n", index, |
| MCDI_DWORD2(outbuf, ofst)); |
| ofst += sizeof(efx_dword_t); |
| } |
| |
| return 0; |
| } |
| |
| static void efx_mcdi_exit_assertion(struct efx_nic *efx) |
| { |
| u8 inbuf[MC_CMD_REBOOT_IN_LEN]; |
| |
| /* If the MC is running debug firmware, it might now be |
| * waiting for a debugger to attach, but we just want it to |
| * reboot. We set a flag that makes the command a no-op if it |
| * has already done so. We don't know what return code to |
| * expect (0 or -EIO), so ignore it. |
| */ |
| BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0); |
| MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS, |
| MC_CMD_REBOOT_FLAGS_AFTER_ASSERTION); |
| (void) efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, MC_CMD_REBOOT_IN_LEN, |
| NULL, 0, NULL); |
| } |
| |
| int efx_mcdi_handle_assertion(struct efx_nic *efx) |
| { |
| int rc; |
| |
| rc = efx_mcdi_read_assertion(efx); |
| if (rc) |
| return rc; |
| |
| efx_mcdi_exit_assertion(efx); |
| |
| return 0; |
| } |
| |
| void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode) |
| { |
| u8 inbuf[MC_CMD_SET_ID_LED_IN_LEN]; |
| int rc; |
| |
| BUILD_BUG_ON(EFX_LED_OFF != MC_CMD_LED_OFF); |
| BUILD_BUG_ON(EFX_LED_ON != MC_CMD_LED_ON); |
| BUILD_BUG_ON(EFX_LED_DEFAULT != MC_CMD_LED_DEFAULT); |
| |
| BUILD_BUG_ON(MC_CMD_SET_ID_LED_OUT_LEN != 0); |
| |
| MCDI_SET_DWORD(inbuf, SET_ID_LED_IN_STATE, mode); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_SET_ID_LED, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| if (rc) |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
| __func__, rc); |
| } |
| |
| int efx_mcdi_reset_port(struct efx_nic *efx) |
| { |
| int rc = efx_mcdi_rpc(efx, MC_CMD_ENTITY_RESET, NULL, 0, NULL, 0, NULL); |
| if (rc) |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
| __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_reset_mc(struct efx_nic *efx) |
| { |
| u8 inbuf[MC_CMD_REBOOT_IN_LEN]; |
| int rc; |
| |
| BUILD_BUG_ON(MC_CMD_REBOOT_OUT_LEN != 0); |
| MCDI_SET_DWORD(inbuf, REBOOT_IN_FLAGS, 0); |
| rc = efx_mcdi_rpc(efx, MC_CMD_REBOOT, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| /* White is black, and up is down */ |
| if (rc == -EIO) |
| return 0; |
| if (rc == 0) |
| rc = -EIO; |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| static int efx_mcdi_wol_filter_set(struct efx_nic *efx, u32 type, |
| const u8 *mac, int *id_out) |
| { |
| u8 inbuf[MC_CMD_WOL_FILTER_SET_IN_LEN]; |
| u8 outbuf[MC_CMD_WOL_FILTER_SET_OUT_LEN]; |
| size_t outlen; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_WOL_TYPE, type); |
| MCDI_SET_DWORD(inbuf, WOL_FILTER_SET_IN_FILTER_MODE, |
| MC_CMD_FILTER_MODE_SIMPLE); |
| memcpy(MCDI_PTR(inbuf, WOL_FILTER_SET_IN_MAGIC_MAC), mac, ETH_ALEN); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_SET, inbuf, sizeof(inbuf), |
| outbuf, sizeof(outbuf), &outlen); |
| if (rc) |
| goto fail; |
| |
| if (outlen < MC_CMD_WOL_FILTER_SET_OUT_LEN) { |
| rc = -EIO; |
| goto fail; |
| } |
| |
| *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_SET_OUT_FILTER_ID); |
| |
| return 0; |
| |
| fail: |
| *id_out = -1; |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| |
| } |
| |
| |
| int |
| efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac, int *id_out) |
| { |
| return efx_mcdi_wol_filter_set(efx, MC_CMD_WOL_TYPE_MAGIC, mac, id_out); |
| } |
| |
| |
| int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out) |
| { |
| u8 outbuf[MC_CMD_WOL_FILTER_GET_OUT_LEN]; |
| size_t outlen; |
| int rc; |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_GET, NULL, 0, |
| outbuf, sizeof(outbuf), &outlen); |
| if (rc) |
| goto fail; |
| |
| if (outlen < MC_CMD_WOL_FILTER_GET_OUT_LEN) { |
| rc = -EIO; |
| goto fail; |
| } |
| |
| *id_out = (int)MCDI_DWORD(outbuf, WOL_FILTER_GET_OUT_FILTER_ID); |
| |
| return 0; |
| |
| fail: |
| *id_out = -1; |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| |
| int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id) |
| { |
| u8 inbuf[MC_CMD_WOL_FILTER_REMOVE_IN_LEN]; |
| int rc; |
| |
| MCDI_SET_DWORD(inbuf, WOL_FILTER_REMOVE_IN_FILTER_ID, (u32)id); |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_REMOVE, inbuf, sizeof(inbuf), |
| NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |
| int efx_mcdi_flush_rxqs(struct efx_nic *efx) |
| { |
| struct efx_channel *channel; |
| struct efx_rx_queue *rx_queue; |
| __le32 *qid; |
| int rc, count; |
| |
| qid = kmalloc(EFX_MAX_CHANNELS * sizeof(*qid), GFP_KERNEL); |
| if (qid == NULL) |
| return -ENOMEM; |
| |
| count = 0; |
| efx_for_each_channel(channel, efx) { |
| efx_for_each_channel_rx_queue(rx_queue, channel) { |
| if (rx_queue->flush_pending) { |
| rx_queue->flush_pending = false; |
| atomic_dec(&efx->rxq_flush_pending); |
| qid[count++] = cpu_to_le32( |
| efx_rx_queue_index(rx_queue)); |
| } |
| } |
| } |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_FLUSH_RX_QUEUES, (u8 *)qid, |
| count * sizeof(*qid), NULL, 0, NULL); |
| WARN_ON(rc > 0); |
| |
| kfree(qid); |
| |
| return rc; |
| } |
| |
| int efx_mcdi_wol_filter_reset(struct efx_nic *efx) |
| { |
| int rc; |
| |
| rc = efx_mcdi_rpc(efx, MC_CMD_WOL_FILTER_RESET, NULL, 0, NULL, 0, NULL); |
| if (rc) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
| return rc; |
| } |
| |