return (rc);
}
-static __checkReturn efx_rc_t
-efx_mcdi_init_evq(
- __in efx_nic_t *enp,
- __in unsigned int instance,
- __in efsys_mem_t *esmp,
- __in size_t nevs,
- __in uint32_t irq,
- __in uint32_t us,
- __in uint32_t flags,
- __in boolean_t low_latency)
-{
- efx_mcdi_req_t req;
- EFX_MCDI_DECLARE_BUF(payload,
- MC_CMD_INIT_EVQ_IN_LEN(EF10_EVQ_MAXNBUFS),
- MC_CMD_INIT_EVQ_OUT_LEN);
- efx_qword_t *dma_addr;
- uint64_t addr;
- int npages;
- int i;
- boolean_t interrupting;
- int ev_cut_through;
- efx_rc_t rc;
-
- npages = efx_evq_nbufs(enp, nevs);
- if (npages > EF10_EVQ_MAXNBUFS) {
- rc = EINVAL;
- goto fail1;
- }
-
- req.emr_cmd = MC_CMD_INIT_EVQ;
- req.emr_in_buf = payload;
- req.emr_in_length = MC_CMD_INIT_EVQ_IN_LEN(npages);
- req.emr_out_buf = payload;
- req.emr_out_length = MC_CMD_INIT_EVQ_OUT_LEN;
-
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_SIZE, nevs);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_INSTANCE, instance);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_IRQ_NUM, irq);
-
- interrupting = ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
- EFX_EVQ_FLAGS_NOTIFY_INTERRUPT);
-
- /*
- * On Huntington RX and TX event batching can only be requested together
- * (even if the datapath firmware doesn't actually support RX
- * batching). If event cut through is enabled no RX batching will occur.
- *
- * So always enable RX and TX event batching, and enable event cut
- * through if we want low latency operation.
- */
- switch (flags & EFX_EVQ_FLAGS_TYPE_MASK) {
- case EFX_EVQ_FLAGS_TYPE_AUTO:
- ev_cut_through = low_latency ? 1 : 0;
- break;
- case EFX_EVQ_FLAGS_TYPE_THROUGHPUT:
- ev_cut_through = 0;
- break;
- case EFX_EVQ_FLAGS_TYPE_LOW_LATENCY:
- ev_cut_through = 1;
- break;
- default:
- rc = EINVAL;
- goto fail2;
- }
- MCDI_IN_POPULATE_DWORD_6(req, INIT_EVQ_IN_FLAGS,
- INIT_EVQ_IN_FLAG_INTERRUPTING, interrupting,
- INIT_EVQ_IN_FLAG_RPTR_DOS, 0,
- INIT_EVQ_IN_FLAG_INT_ARMD, 0,
- INIT_EVQ_IN_FLAG_CUT_THRU, ev_cut_through,
- INIT_EVQ_IN_FLAG_RX_MERGE, 1,
- INIT_EVQ_IN_FLAG_TX_MERGE, 1);
-
- /* If the value is zero then disable the timer */
- if (us == 0) {
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_MODE,
- MC_CMD_INIT_EVQ_IN_TMR_MODE_DIS);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_LOAD, 0);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_RELOAD, 0);
- } else {
- unsigned int ticks;
-
- if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
- goto fail3;
-
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_MODE,
- MC_CMD_INIT_EVQ_IN_TMR_INT_HLDOFF);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_LOAD, ticks);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_RELOAD, ticks);
- }
-
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_COUNT_MODE,
- MC_CMD_INIT_EVQ_IN_COUNT_MODE_DIS);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_COUNT_THRSHLD, 0);
-
- dma_addr = MCDI_IN2(req, efx_qword_t, INIT_EVQ_IN_DMA_ADDR);
- addr = EFSYS_MEM_ADDR(esmp);
-
- for (i = 0; i < npages; i++) {
- EFX_POPULATE_QWORD_2(*dma_addr,
- EFX_DWORD_1, (uint32_t)(addr >> 32),
- EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
-
- dma_addr++;
- addr += EFX_BUF_SIZE;
- }
-
- efx_mcdi_execute(enp, &req);
-
- if (req.emr_rc != 0) {
- rc = req.emr_rc;
- goto fail4;
- }
-
- if (req.emr_out_length_used < MC_CMD_INIT_EVQ_OUT_LEN) {
- rc = EMSGSIZE;
- goto fail5;
- }
-
- /* NOTE: ignore the returned IRQ param as firmware does not set it. */
-
- return (0);
-
-fail5:
- EFSYS_PROBE(fail5);
-fail4:
- EFSYS_PROBE(fail4);
-fail3:
- EFSYS_PROBE(fail3);
-fail2:
- EFSYS_PROBE(fail2);
-fail1:
- EFSYS_PROBE1(fail1, efx_rc_t, rc);
-
- return (rc);
-}
-
-
-static __checkReturn efx_rc_t
-efx_mcdi_init_evq_v2(
- __in efx_nic_t *enp,
- __in unsigned int instance,
- __in efsys_mem_t *esmp,
- __in size_t nevs,
- __in uint32_t irq,
- __in uint32_t us,
- __in uint32_t flags)
-{
- efx_mcdi_req_t req;
- EFX_MCDI_DECLARE_BUF(payload,
- MC_CMD_INIT_EVQ_V2_IN_LEN(EF10_EVQ_MAXNBUFS),
- MC_CMD_INIT_EVQ_V2_OUT_LEN);
- boolean_t interrupting;
- unsigned int evq_type;
- efx_qword_t *dma_addr;
- uint64_t addr;
- int npages;
- int i;
- efx_rc_t rc;
-
- npages = efx_evq_nbufs(enp, nevs);
- if (npages > EF10_EVQ_MAXNBUFS) {
- rc = EINVAL;
- goto fail1;
- }
-
- req.emr_cmd = MC_CMD_INIT_EVQ;
- req.emr_in_buf = payload;
- req.emr_in_length = MC_CMD_INIT_EVQ_V2_IN_LEN(npages);
- req.emr_out_buf = payload;
- req.emr_out_length = MC_CMD_INIT_EVQ_V2_OUT_LEN;
-
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_SIZE, nevs);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_INSTANCE, instance);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_IRQ_NUM, irq);
-
- interrupting = ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
- EFX_EVQ_FLAGS_NOTIFY_INTERRUPT);
-
- switch (flags & EFX_EVQ_FLAGS_TYPE_MASK) {
- case EFX_EVQ_FLAGS_TYPE_AUTO:
- evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_AUTO;
- break;
- case EFX_EVQ_FLAGS_TYPE_THROUGHPUT:
- evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_THROUGHPUT;
- break;
- case EFX_EVQ_FLAGS_TYPE_LOW_LATENCY:
- evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_LOW_LATENCY;
- break;
- default:
- rc = EINVAL;
- goto fail2;
- }
- MCDI_IN_POPULATE_DWORD_4(req, INIT_EVQ_V2_IN_FLAGS,
- INIT_EVQ_V2_IN_FLAG_INTERRUPTING, interrupting,
- INIT_EVQ_V2_IN_FLAG_RPTR_DOS, 0,
- INIT_EVQ_V2_IN_FLAG_INT_ARMD, 0,
- INIT_EVQ_V2_IN_FLAG_TYPE, evq_type);
-
- /* If the value is zero then disable the timer */
- if (us == 0) {
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_MODE,
- MC_CMD_INIT_EVQ_V2_IN_TMR_MODE_DIS);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_LOAD, 0);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_RELOAD, 0);
- } else {
- unsigned int ticks;
-
- if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
- goto fail3;
-
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_MODE,
- MC_CMD_INIT_EVQ_V2_IN_TMR_INT_HLDOFF);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_LOAD, ticks);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_RELOAD, ticks);
- }
-
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_COUNT_MODE,
- MC_CMD_INIT_EVQ_V2_IN_COUNT_MODE_DIS);
- MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_COUNT_THRSHLD, 0);
-
- dma_addr = MCDI_IN2(req, efx_qword_t, INIT_EVQ_V2_IN_DMA_ADDR);
- addr = EFSYS_MEM_ADDR(esmp);
-
- for (i = 0; i < npages; i++) {
- EFX_POPULATE_QWORD_2(*dma_addr,
- EFX_DWORD_1, (uint32_t)(addr >> 32),
- EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
-
- dma_addr++;
- addr += EFX_BUF_SIZE;
- }
-
- efx_mcdi_execute(enp, &req);
-
- if (req.emr_rc != 0) {
- rc = req.emr_rc;
- goto fail4;
- }
-
- if (req.emr_out_length_used < MC_CMD_INIT_EVQ_V2_OUT_LEN) {
- rc = EMSGSIZE;
- goto fail5;
- }
-
- /* NOTE: ignore the returned IRQ param as firmware does not set it. */
-
- EFSYS_PROBE1(mcdi_evq_flags, uint32_t,
- MCDI_OUT_DWORD(req, INIT_EVQ_V2_OUT_FLAGS));
-
- return (0);
-
-fail5:
- EFSYS_PROBE(fail5);
-fail4:
- EFSYS_PROBE(fail4);
-fail3:
- EFSYS_PROBE(fail3);
-fail2:
- EFSYS_PROBE(fail2);
-fail1:
- EFSYS_PROBE1(fail1, efx_rc_t, rc);
-
- return (rc);
-}
-
-static __checkReturn efx_rc_t
-efx_mcdi_fini_evq(
- __in efx_nic_t *enp,
- __in uint32_t instance)
-{
- efx_mcdi_req_t req;
- EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FINI_EVQ_IN_LEN,
- MC_CMD_FINI_EVQ_OUT_LEN);
- efx_rc_t rc;
-
- req.emr_cmd = MC_CMD_FINI_EVQ;
- req.emr_in_buf = payload;
- req.emr_in_length = MC_CMD_FINI_EVQ_IN_LEN;
- req.emr_out_buf = payload;
- req.emr_out_length = MC_CMD_FINI_EVQ_OUT_LEN;
-
- MCDI_IN_SET_DWORD(req, FINI_EVQ_IN_INSTANCE, instance);
-
- efx_mcdi_execute_quiet(enp, &req);
-
- if (req.emr_rc != 0) {
- rc = req.emr_rc;
- goto fail1;
- }
-
- return (0);
-
-fail1:
- /*
- * EALREADY is not an error, but indicates that the MC has rebooted and
- * that the EVQ has already been destroyed.
- */
- if (rc != EALREADY)
- EFSYS_PROBE1(fail1, efx_rc_t, rc);
-
- return (rc);
-}
-
-
__checkReturn efx_rc_t
ef10_ev_init(
git.droids-corp.org / dpdk.git / blobdiff