-/*
- * 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.
+/* SPDX-License-Identifier: BSD-3-Clause
*
- * 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.
+ * Copyright (c) 2012-2018 Solarflare Communications Inc.
+ * All rights reserved.
*/
#include "efx.h"
static __checkReturn efx_rc_t
efx_mcdi_init_rxq(
__in efx_nic_t *enp,
- __in uint32_t size,
+ __in uint32_t ndescs,
__in uint32_t target_evq,
__in uint32_t label,
__in uint32_t instance,
__in efsys_mem_t *esmp,
__in boolean_t disable_scatter,
+ __in boolean_t want_inner_classes,
__in uint32_t ps_bufsize)
{
+ efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_mcdi_req_t req;
uint8_t payload[MAX(MC_CMD_INIT_RXQ_EXT_IN_LEN,
MC_CMD_INIT_RXQ_EXT_OUT_LEN)];
- int npages = EFX_RXQ_NBUFS(size);
+ int npages = EFX_RXQ_NBUFS(ndescs);
int i;
efx_qword_t *dma_addr;
uint64_t addr;
efx_rc_t rc;
uint32_t dma_mode;
+ boolean_t want_outer_classes;
- /* If this changes, then the payload size might need to change. */
- EFSYS_ASSERT3U(MC_CMD_INIT_RXQ_OUT_LEN, ==, 0);
- EFSYS_ASSERT3U(size, <=, EFX_RXQ_MAXNDESCS);
+ EFSYS_ASSERT3U(ndescs, <=, EFX_RXQ_MAXNDESCS);
if (ps_bufsize > 0)
dma_mode = MC_CMD_INIT_RXQ_EXT_IN_PACKED_STREAM;
else
dma_mode = MC_CMD_INIT_RXQ_EXT_IN_SINGLE_PACKET;
+ if (encp->enc_tunnel_encapsulations_supported != 0 &&
+ !want_inner_classes) {
+ /*
+ * WANT_OUTER_CLASSES can only be specified on hardware which
+ * supports tunnel encapsulation offloads, even though it is
+ * effectively the behaviour the hardware gives.
+ *
+ * Also, on hardware which does support such offloads, older
+ * firmware rejects the flag if the offloads are not supported
+ * by the current firmware variant, which means this may fail if
+ * the capabilities are not updated when the firmware variant
+ * changes. This is not an issue on newer firmware, as it was
+ * changed in bug 69842 (v6.4.2.1007) to permit this flag to be
+ * specified on all firmware variants.
+ */
+ want_outer_classes = B_TRUE;
+ } else {
+ want_outer_classes = B_FALSE;
+ }
+
(void) memset(payload, 0, sizeof (payload));
req.emr_cmd = MC_CMD_INIT_RXQ;
req.emr_in_buf = payload;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_INIT_RXQ_EXT_OUT_LEN;
- MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_SIZE, size);
+ MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_SIZE, ndescs);
MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_TARGET_EVQ, target_evq);
MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_LABEL, label);
MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_INSTANCE, instance);
- MCDI_IN_POPULATE_DWORD_8(req, INIT_RXQ_EXT_IN_FLAGS,
+ MCDI_IN_POPULATE_DWORD_9(req, INIT_RXQ_EXT_IN_FLAGS,
INIT_RXQ_EXT_IN_FLAG_BUFF_MODE, 0,
INIT_RXQ_EXT_IN_FLAG_HDR_SPLIT, 0,
INIT_RXQ_EXT_IN_FLAG_TIMESTAMP, 0,
INIT_RXQ_EXT_IN_FLAG_DISABLE_SCATTER, disable_scatter,
INIT_RXQ_EXT_IN_DMA_MODE,
dma_mode,
- INIT_RXQ_EXT_IN_PACKED_STREAM_BUFF_SIZE, ps_bufsize);
+ INIT_RXQ_EXT_IN_PACKED_STREAM_BUFF_SIZE, ps_bufsize,
+ INIT_RXQ_EXT_IN_FLAG_WANT_OUTER_CLASSES, want_outer_classes);
MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_OWNER_ID, 0);
MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_PORT_ID, EVB_PORT_ID_ASSIGNED);
MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_UPSTREAM_PORT_ID,
EVB_PORT_ID_ASSIGNED);
MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_TYPE, context_type);
- /* NUM_QUEUES is only used to validate indirection table offsets */
+
+ /*
+ * For exclusive contexts, NUM_QUEUES is only used to validate
+ * indirection table offsets.
+ * For shared contexts, the provided context will spread traffic over
+ * NUM_QUEUES many queues.
+ */
MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_NUM_QUEUES, num_queues);
efx_mcdi_execute(enp, &req);
}
#endif /* EFSYS_OPT_RX_SCALE */
- void
+#if EFSYS_OPT_RX_PACKED_STREAM
+/*
+ * Fake length for RXQ descriptors in packed stream mode
+ * to make hardware happy
+ */
+#define EFX_RXQ_PACKED_STREAM_FAKE_BUF_SIZE 32
+#endif
+
+ void
ef10_rx_qpost(
- __in efx_rxq_t *erp,
- __in_ecount(n) efsys_dma_addr_t *addrp,
- __in size_t size,
- __in unsigned int n,
- __in unsigned int completed,
- __in unsigned int added)
+ __in efx_rxq_t *erp,
+ __in_ecount(ndescs) efsys_dma_addr_t *addrp,
+ __in size_t size,
+ __in unsigned int ndescs,
+ __in unsigned int completed,
+ __in unsigned int added)
{
efx_qword_t qword;
unsigned int i;
unsigned int offset;
unsigned int id;
+ _NOTE(ARGUNUSED(completed))
+
+#if EFSYS_OPT_RX_PACKED_STREAM
+ /*
+ * Real size of the buffer does not fit into ESF_DZ_RX_KER_BYTE_CNT
+ * and equal to 0 after applying mask. Hardware does not like it.
+ */
+ if (erp->er_ev_qstate->eers_rx_packed_stream)
+ size = EFX_RXQ_PACKED_STREAM_FAKE_BUF_SIZE;
+#endif
+
/* The client driver must not overfill the queue */
- EFSYS_ASSERT3U(added - completed + n, <=,
+ EFSYS_ASSERT3U(added - completed + ndescs, <=,
EFX_RXQ_LIMIT(erp->er_mask + 1));
id = added & (erp->er_mask);
- for (i = 0; i < n; i++) {
+ for (i = 0; i < ndescs; i++) {
EFSYS_PROBE4(rx_post, unsigned int, erp->er_index,
unsigned int, id, efsys_dma_addr_t, addrp[i],
size_t, size);
#if EFSYS_OPT_RX_PACKED_STREAM
void
-ef10_rx_qps_update_credits(
- __in efx_rxq_t *erp)
+ef10_rx_qpush_ps_credits(
+ __in efx_rxq_t *erp)
{
efx_nic_t *enp = erp->er_enp;
efx_dword_t dword;
- efx_evq_rxq_state_t *rxq_state =
- &erp->er_eep->ee_rxq_state[erp->er_label];
+ efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate;
+ uint32_t credits;
EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
if (rxq_state->eers_rx_packed_stream_credits == 0)
return;
+ /*
+ * It is a bug if we think that FW has utilized more
+ * credits than it is allowed to have (maximum). However,
+ * make sure that we do not credit more than maximum anyway.
+ */
+ credits = MIN(rxq_state->eers_rx_packed_stream_credits,
+ EFX_RX_PACKED_STREAM_MAX_CREDITS);
EFX_POPULATE_DWORD_3(dword,
ERF_DZ_RX_DESC_MAGIC_DOORBELL, 1,
ERF_DZ_RX_DESC_MAGIC_CMD,
ERE_DZ_RX_DESC_MAGIC_CMD_PS_CREDITS,
- ERF_DZ_RX_DESC_MAGIC_DATA,
- rxq_state->eers_rx_packed_stream_credits);
+ ERF_DZ_RX_DESC_MAGIC_DATA, credits);
EFX_BAR_TBL_WRITED(enp, ER_DZ_RX_DESC_UPD_REG,
erp->er_index, &dword, B_FALSE);
rxq_state->eers_rx_packed_stream_credits = 0;
}
+/*
+ * In accordance with SF-112241-TC the received data has the following layout:
+ * - 8 byte pseudo-header which consist of:
+ * - 4 byte little-endian timestamp
+ * - 2 byte little-endian captured length in bytes
+ * - 2 byte little-endian original packet length in bytes
+ * - captured packet bytes
+ * - optional padding to align to 64 bytes boundary
+ * - 64 bytes scratch space for the host software
+ */
__checkReturn uint8_t *
ef10_rx_qps_packet_info(
__in efx_rxq_t *erp,
uint16_t buf_len;
uint8_t *pkt_start;
efx_qword_t *qwordp;
- efx_evq_rxq_state_t *rxq_state =
- &erp->er_eep->ee_rxq_state[erp->er_label];
+ efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate;
EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
EFSYS_ASSERT3U(current_offset + *lengthp, <, *next_offsetp);
if ((*next_offsetp ^ current_offset) &
- EFX_RX_PACKED_STREAM_MEM_PER_CREDIT) {
- if (rxq_state->eers_rx_packed_stream_credits <
- EFX_RX_PACKED_STREAM_MAX_CREDITS)
- rxq_state->eers_rx_packed_stream_credits++;
- }
+ EFX_RX_PACKED_STREAM_MEM_PER_CREDIT)
+ rxq_state->eers_rx_packed_stream_credits++;
return (pkt_start);
}
__in unsigned int index,
__in unsigned int label,
__in efx_rxq_type_t type,
+ __in uint32_t type_data,
__in efsys_mem_t *esmp,
- __in size_t n,
+ __in size_t ndescs,
__in uint32_t id,
+ __in unsigned int flags,
__in efx_evq_t *eep,
__in efx_rxq_t *erp)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_rc_t rc;
boolean_t disable_scatter;
+ boolean_t want_inner_classes;
unsigned int ps_buf_size;
- _NOTE(ARGUNUSED(id, erp))
+ _NOTE(ARGUNUSED(id, erp, type_data))
EFX_STATIC_ASSERT(EFX_EV_RX_NLABELS == (1 << ESF_DZ_RX_QLABEL_WIDTH));
EFSYS_ASSERT3U(label, <, EFX_EV_RX_NLABELS);
EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MAXNDESCS));
EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MINNDESCS));
- if (!ISP2(n) || (n < EFX_RXQ_MINNDESCS) || (n > EFX_RXQ_MAXNDESCS)) {
+ if (!ISP2(ndescs) ||
+ (ndescs < EFX_RXQ_MINNDESCS) || (ndescs > EFX_RXQ_MAXNDESCS)) {
rc = EINVAL;
goto fail1;
}
switch (type) {
case EFX_RXQ_TYPE_DEFAULT:
- case EFX_RXQ_TYPE_SCATTER:
ps_buf_size = 0;
break;
#if EFSYS_OPT_RX_PACKED_STREAM
- case EFX_RXQ_TYPE_PACKED_STREAM_1M:
- ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M;
- break;
- case EFX_RXQ_TYPE_PACKED_STREAM_512K:
- ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_512K;
- break;
- case EFX_RXQ_TYPE_PACKED_STREAM_256K:
- ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_256K;
- break;
- case EFX_RXQ_TYPE_PACKED_STREAM_128K:
- ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_128K;
- break;
- case EFX_RXQ_TYPE_PACKED_STREAM_64K:
- ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_64K;
+ case EFX_RXQ_TYPE_PACKED_STREAM:
+ switch (type_data) {
+ case EFX_RXQ_PACKED_STREAM_BUF_SIZE_1M:
+ ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M;
+ break;
+ case EFX_RXQ_PACKED_STREAM_BUF_SIZE_512K:
+ ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_512K;
+ break;
+ case EFX_RXQ_PACKED_STREAM_BUF_SIZE_256K:
+ ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_256K;
+ break;
+ case EFX_RXQ_PACKED_STREAM_BUF_SIZE_128K:
+ ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_128K;
+ break;
+ case EFX_RXQ_PACKED_STREAM_BUF_SIZE_64K:
+ ps_buf_size = MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_64K;
+ break;
+ default:
+ rc = ENOTSUP;
+ goto fail3;
+ }
break;
#endif /* EFSYS_OPT_RX_PACKED_STREAM */
default:
rc = ENOTSUP;
- goto fail3;
+ goto fail4;
}
#if EFSYS_OPT_RX_PACKED_STREAM
/* Check if datapath firmware supports packed stream mode */
if (encp->enc_rx_packed_stream_supported == B_FALSE) {
rc = ENOTSUP;
- goto fail4;
+ goto fail5;
}
/* Check if packed stream allows configurable buffer sizes */
- if ((type != EFX_RXQ_TYPE_PACKED_STREAM_1M) &&
+ if ((ps_buf_size != MC_CMD_INIT_RXQ_EXT_IN_PS_BUFF_1M) &&
(encp->enc_rx_var_packed_stream_supported == B_FALSE)) {
rc = ENOTSUP;
- goto fail5;
+ goto fail6;
}
}
#else /* EFSYS_OPT_RX_PACKED_STREAM */
#endif /* EFSYS_OPT_RX_PACKED_STREAM */
/* Scatter can only be disabled if the firmware supports doing so */
- if (type == EFX_RXQ_TYPE_SCATTER)
+ if (flags & EFX_RXQ_FLAG_SCATTER)
disable_scatter = B_FALSE;
else
disable_scatter = encp->enc_rx_disable_scatter_supported;
- if ((rc = efx_mcdi_init_rxq(enp, n, eep->ee_index, label, index,
- esmp, disable_scatter, ps_buf_size)) != 0)
- goto fail6;
+ if (flags & EFX_RXQ_FLAG_INNER_CLASSES)
+ want_inner_classes = B_TRUE;
+ else
+ want_inner_classes = B_FALSE;
+
+ if ((rc = efx_mcdi_init_rxq(enp, ndescs, eep->ee_index, label, index,
+ esmp, disable_scatter, want_inner_classes,
+ ps_buf_size)) != 0)
+ goto fail7;
erp->er_eep = eep;
erp->er_label = label;
- ef10_ev_rxlabel_init(eep, erp, label, ps_buf_size != 0);
+ ef10_ev_rxlabel_init(eep, erp, label, type);
+
+ erp->er_ev_qstate = &erp->er_eep->ee_rxq_state[label];
return (0);
+fail7:
+ EFSYS_PROBE(fail7);
+#if EFSYS_OPT_RX_PACKED_STREAM
fail6:
EFSYS_PROBE(fail6);
-#if EFSYS_OPT_RX_PACKED_STREAM
fail5:
EFSYS_PROBE(fail5);
+#endif /* EFSYS_OPT_RX_PACKED_STREAM */
fail4:
EFSYS_PROBE(fail4);
-#endif /* EFSYS_OPT_RX_PACKED_STREAM */
+#if EFSYS_OPT_RX_PACKED_STREAM
fail3:
EFSYS_PROBE(fail3);
+#endif /* EFSYS_OPT_RX_PACKED_STREAM */
fail2:
EFSYS_PROBE(fail2);
fail1:
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