--- /dev/null
+/*
+ * Copyright (c) 2012-2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of the FreeBSD Project.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+
+
+static __checkReturn efx_rc_t
+efx_mcdi_init_rxq(
+ __in efx_nic_t *enp,
+ __in uint32_t size,
+ __in uint32_t target_evq,
+ __in uint32_t label,
+ __in uint32_t instance,
+ __in efsys_mem_t *esmp,
+ __in boolean_t disable_scatter,
+ __in uint32_t ps_bufsize)
+{
+ 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 i;
+ efx_qword_t *dma_addr;
+ uint64_t addr;
+ efx_rc_t rc;
+ uint32_t dma_mode;
+
+ /* 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);
+
+ 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;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_INIT_RXQ;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_INIT_RXQ_EXT_IN_LEN;
+ 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_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,
+ 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_CRC_MODE, 0,
+ INIT_RXQ_EXT_IN_FLAG_PREFIX, 1,
+ 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);
+ 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);
+
+ dma_addr = MCDI_IN2(req, efx_qword_t, INIT_RXQ_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 fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_fini_rxq(
+ __in efx_nic_t *enp,
+ __in uint32_t instance)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_FINI_RXQ_IN_LEN,
+ MC_CMD_FINI_RXQ_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_FINI_RXQ;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_FINI_RXQ_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_FINI_RXQ_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, FINI_RXQ_IN_INSTANCE, instance);
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if ((req.emr_rc != 0) && (req.emr_rc != MC_CMD_ERR_EALREADY)) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#if EFSYS_OPT_RX_SCALE
+static __checkReturn efx_rc_t
+efx_mcdi_rss_context_alloc(
+ __in efx_nic_t *enp,
+ __in efx_rx_scale_support_t scale_support,
+ __in uint32_t num_queues,
+ __out uint32_t *rss_contextp)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN,
+ MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN)];
+ uint32_t rss_context;
+ uint32_t context_type;
+ efx_rc_t rc;
+
+ if (num_queues > EFX_MAXRSS) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ switch (scale_support) {
+ case EFX_RX_SCALE_EXCLUSIVE:
+ context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_EXCLUSIVE;
+ break;
+ case EFX_RX_SCALE_SHARED:
+ context_type = MC_CMD_RSS_CONTEXT_ALLOC_IN_TYPE_SHARED;
+ break;
+ default:
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_ALLOC;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_ALLOC_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN;
+
+ 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 */
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_NUM_QUEUES, num_queues);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail3;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_RSS_CONTEXT_ALLOC_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail4;
+ }
+
+ rss_context = MCDI_OUT_DWORD(req, RSS_CONTEXT_ALLOC_OUT_RSS_CONTEXT_ID);
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = ENOENT;
+ goto fail5;
+ }
+
+ *rss_contextp = rss_context;
+
+ 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);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_free(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_FREE_IN_LEN,
+ MC_CMD_RSS_CONTEXT_FREE_OUT_LEN)];
+ efx_rc_t rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_FREE;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_FREE_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_FREE_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_FREE_IN_RSS_CONTEXT_ID, rss_context);
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_set_flags(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in efx_rx_hash_type_t type)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN,
+ MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN)];
+ efx_rc_t rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_FLAGS;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_FLAGS_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_FLAGS_IN_RSS_CONTEXT_ID,
+ rss_context);
+
+ MCDI_IN_POPULATE_DWORD_4(req, RSS_CONTEXT_SET_FLAGS_IN_FLAGS,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV4_EN,
+ (type & EFX_RX_HASH_IPV4) ? 1 : 0,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV4_EN,
+ (type & EFX_RX_HASH_TCPIPV4) ? 1 : 0,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_IPV6_EN,
+ (type & EFX_RX_HASH_IPV6) ? 1 : 0,
+ RSS_CONTEXT_SET_FLAGS_IN_TOEPLITZ_TCPV6_EN,
+ (type & EFX_RX_HASH_TCPIPV6) ? 1 : 0);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_set_key(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN,
+ MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN)];
+ efx_rc_t rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_KEY;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_KEY_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_KEY_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_KEY_IN_RSS_CONTEXT_ID,
+ rss_context);
+
+ EFSYS_ASSERT3U(n, ==, MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN);
+ if (n != MC_CMD_RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY_LEN) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ memcpy(MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_KEY_IN_TOEPLITZ_KEY),
+ key, n);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail3;
+ }
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+static efx_rc_t
+efx_mcdi_rss_context_set_table(
+ __in efx_nic_t *enp,
+ __in uint32_t rss_context,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN,
+ MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN)];
+ uint8_t *req_table;
+ int i, rc;
+
+ if (rss_context == EF10_RSS_CONTEXT_INVALID) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_RSS_CONTEXT_SET_TABLE;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_RSS_CONTEXT_SET_TABLE_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_RSS_CONTEXT_SET_TABLE_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_SET_TABLE_IN_RSS_CONTEXT_ID,
+ rss_context);
+
+ req_table =
+ MCDI_IN2(req, uint8_t, RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE);
+
+ for (i = 0;
+ i < MC_CMD_RSS_CONTEXT_SET_TABLE_IN_INDIRECTION_TABLE_LEN;
+ i++) {
+ req_table[i] = (n > 0) ? (uint8_t)table[i % n] : 0;
+ }
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+
+ __checkReturn efx_rc_t
+ef10_rx_init(
+ __in efx_nic_t *enp)
+{
+#if EFSYS_OPT_RX_SCALE
+
+ if (efx_mcdi_rss_context_alloc(enp, EFX_RX_SCALE_EXCLUSIVE, EFX_MAXRSS,
+ &enp->en_rss_context) == 0) {
+ /*
+ * Allocated an exclusive RSS context, which allows both the
+ * indirection table and key to be modified.
+ */
+ enp->en_rss_support = EFX_RX_SCALE_EXCLUSIVE;
+ enp->en_hash_support = EFX_RX_HASH_AVAILABLE;
+ } else {
+ /*
+ * Failed to allocate an exclusive RSS context. Continue
+ * operation without support for RSS. The pseudo-header in
+ * received packets will not contain a Toeplitz hash value.
+ */
+ enp->en_rss_support = EFX_RX_SCALE_UNAVAILABLE;
+ enp->en_hash_support = EFX_RX_HASH_UNAVAILABLE;
+ }
+
+#endif /* EFSYS_OPT_RX_SCALE */
+
+ return (0);
+}
+
+#if EFSYS_OPT_RX_SCATTER
+ __checkReturn efx_rc_t
+ef10_rx_scatter_enable(
+ __in efx_nic_t *enp,
+ __in unsigned int buf_size)
+{
+ _NOTE(ARGUNUSED(enp, buf_size))
+ return (0);
+}
+#endif /* EFSYS_OPT_RX_SCATTER */
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+ef10_rx_scale_mode_set(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t alg,
+ __in efx_rx_hash_type_t type,
+ __in boolean_t insert)
+{
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(alg, ==, EFX_RX_HASHALG_TOEPLITZ);
+ EFSYS_ASSERT3U(insert, ==, B_TRUE);
+
+ if ((alg != EFX_RX_HASHALG_TOEPLITZ) || (insert == B_FALSE)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ rc = ENOTSUP;
+ goto fail2;
+ }
+
+ if ((rc = efx_mcdi_rss_context_set_flags(enp,
+ enp->en_rss_context, type)) != 0)
+ goto fail3;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+ef10_rx_scale_key_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) uint8_t *key,
+ __in size_t n)
+{
+ efx_rc_t rc;
+
+ if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ if ((rc = efx_mcdi_rss_context_set_key(enp,
+ enp->en_rss_context, key, n)) != 0)
+ goto fail2;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn efx_rc_t
+ef10_rx_scale_tbl_set(
+ __in efx_nic_t *enp,
+ __in_ecount(n) unsigned int *table,
+ __in size_t n)
+{
+ efx_rc_t rc;
+
+ if (enp->en_rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ if ((rc = efx_mcdi_rss_context_set_table(enp,
+ enp->en_rss_context, table, n)) != 0)
+ goto fail2;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+
+/*
+ * EF10 RX pseudo-header
+ * ---------------------
+ *
+ * Receive packets are prefixed by an (optional) 14 byte pseudo-header:
+ *
+ * +00: Toeplitz hash value.
+ * (32bit little-endian)
+ * +04: Outer VLAN tag. Zero if the packet did not have an outer VLAN tag.
+ * (16bit big-endian)
+ * +06: Inner VLAN tag. Zero if the packet did not have an inner VLAN tag.
+ * (16bit big-endian)
+ * +08: Packet Length. Zero if the RX datapath was in cut-through mode.
+ * (16bit little-endian)
+ * +10: MAC timestamp. Zero if timestamping is not enabled.
+ * (32bit little-endian)
+ *
+ * See "The RX Pseudo-header" in SF-109306-TC.
+ */
+
+ __checkReturn efx_rc_t
+ef10_rx_prefix_pktlen(
+ __in efx_nic_t *enp,
+ __in uint8_t *buffer,
+ __out uint16_t *lengthp)
+{
+ _NOTE(ARGUNUSED(enp))
+
+ /*
+ * The RX pseudo-header contains the packet length, excluding the
+ * pseudo-header. If the hardware receive datapath was operating in
+ * cut-through mode then the length in the RX pseudo-header will be
+ * zero, and the packet length must be obtained from the DMA length
+ * reported in the RX event.
+ */
+ *lengthp = buffer[8] | (buffer[9] << 8);
+ return (0);
+}
+
+#if EFSYS_OPT_RX_SCALE
+ __checkReturn uint32_t
+ef10_rx_prefix_hash(
+ __in efx_nic_t *enp,
+ __in efx_rx_hash_alg_t func,
+ __in uint8_t *buffer)
+{
+ _NOTE(ARGUNUSED(enp))
+
+ switch (func) {
+ case EFX_RX_HASHALG_TOEPLITZ:
+ return (buffer[0] |
+ (buffer[1] << 8) |
+ (buffer[2] << 16) |
+ (buffer[3] << 24));
+
+ default:
+ EFSYS_ASSERT(0);
+ return (0);
+ }
+}
+#endif /* EFSYS_OPT_RX_SCALE */
+
+ 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)
+{
+ efx_qword_t qword;
+ unsigned int i;
+ unsigned int offset;
+ unsigned int id;
+
+ /* The client driver must not overfill the queue */
+ EFSYS_ASSERT3U(added - completed + n, <=,
+ EFX_RXQ_LIMIT(erp->er_mask + 1));
+
+ id = added & (erp->er_mask);
+ for (i = 0; i < n; i++) {
+ EFSYS_PROBE4(rx_post, unsigned int, erp->er_index,
+ unsigned int, id, efsys_dma_addr_t, addrp[i],
+ size_t, size);
+
+ EFX_POPULATE_QWORD_3(qword,
+ ESF_DZ_RX_KER_BYTE_CNT, (uint32_t)(size),
+ ESF_DZ_RX_KER_BUF_ADDR_DW0,
+ (uint32_t)(addrp[i] & 0xffffffff),
+ ESF_DZ_RX_KER_BUF_ADDR_DW1,
+ (uint32_t)(addrp[i] >> 32));
+
+ offset = id * sizeof (efx_qword_t);
+ EFSYS_MEM_WRITEQ(erp->er_esmp, offset, &qword);
+
+ id = (id + 1) & (erp->er_mask);
+ }
+}
+
+ void
+ef10_rx_qpush(
+ __in efx_rxq_t *erp,
+ __in unsigned int added,
+ __inout unsigned int *pushedp)
+{
+ efx_nic_t *enp = erp->er_enp;
+ unsigned int pushed = *pushedp;
+ uint32_t wptr;
+ efx_dword_t dword;
+
+ /* Hardware has alignment restriction for WPTR */
+ wptr = P2ALIGN(added, EF10_RX_WPTR_ALIGN);
+ if (pushed == wptr)
+ return;
+
+ *pushedp = wptr;
+
+ /* Push the populated descriptors out */
+ wptr &= erp->er_mask;
+
+ EFX_POPULATE_DWORD_1(dword, ERF_DZ_RX_DESC_WPTR, wptr);
+
+ /* Guarantee ordering of memory (descriptors) and PIO (doorbell) */
+ EFX_DMA_SYNC_QUEUE_FOR_DEVICE(erp->er_esmp, erp->er_mask + 1,
+ wptr, pushed & erp->er_mask);
+ EFSYS_PIO_WRITE_BARRIER();
+ EFX_BAR_TBL_WRITED(enp, ER_DZ_RX_DESC_UPD_REG,
+ erp->er_index, &dword, B_FALSE);
+}
+
+#if EFSYS_OPT_RX_PACKED_STREAM
+
+ void
+ef10_rx_qps_update_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];
+
+ EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
+
+ if (rxq_state->eers_rx_packed_stream_credits == 0)
+ return;
+
+ 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);
+ 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;
+}
+
+ __checkReturn uint8_t *
+ef10_rx_qps_packet_info(
+ __in efx_rxq_t *erp,
+ __in uint8_t *buffer,
+ __in uint32_t buffer_length,
+ __in uint32_t current_offset,
+ __out uint16_t *lengthp,
+ __out uint32_t *next_offsetp,
+ __out uint32_t *timestamp)
+{
+ 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];
+
+ EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
+
+ buffer += current_offset;
+ pkt_start = buffer + EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE;
+
+ qwordp = (efx_qword_t *)buffer;
+ *timestamp = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_TSTAMP);
+ *lengthp = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_ORIG_LEN);
+ buf_len = EFX_QWORD_FIELD(*qwordp, ES_DZ_PS_RX_PREFIX_CAP_LEN);
+
+ buf_len = P2ROUNDUP(buf_len + EFX_RX_PACKED_STREAM_RX_PREFIX_SIZE,
+ EFX_RX_PACKED_STREAM_ALIGNMENT);
+ *next_offsetp =
+ current_offset + buf_len + EFX_RX_PACKED_STREAM_ALIGNMENT;
+
+ EFSYS_ASSERT3U(*next_offsetp, <=, buffer_length);
+ 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++;
+ }
+
+ return (pkt_start);
+}
+
+
+#endif
+
+ __checkReturn efx_rc_t
+ef10_rx_qflush(
+ __in efx_rxq_t *erp)
+{
+ efx_nic_t *enp = erp->er_enp;
+ efx_rc_t rc;
+
+ if ((rc = efx_mcdi_fini_rxq(enp, erp->er_index)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ void
+ef10_rx_qenable(
+ __in efx_rxq_t *erp)
+{
+ /* FIXME */
+ _NOTE(ARGUNUSED(erp))
+ /* FIXME */
+}
+
+ __checkReturn efx_rc_t
+ef10_rx_qcreate(
+ __in efx_nic_t *enp,
+ __in unsigned int index,
+ __in unsigned int label,
+ __in efx_rxq_type_t type,
+ __in efsys_mem_t *esmp,
+ __in size_t n,
+ __in uint32_t id,
+ __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;
+ unsigned int ps_buf_size;
+
+ _NOTE(ARGUNUSED(id, erp))
+
+ EFX_STATIC_ASSERT(EFX_EV_RX_NLABELS == (1 << ESF_DZ_RX_QLABEL_WIDTH));
+ EFSYS_ASSERT3U(label, <, EFX_EV_RX_NLABELS);
+ EFSYS_ASSERT3U(enp->en_rx_qcount + 1, <, encp->enc_rxq_limit);
+
+ 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)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+ if (index >= encp->enc_rxq_limit) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ 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;
+ break;
+#endif /* EFSYS_OPT_RX_PACKED_STREAM */
+ default:
+ rc = ENOTSUP;
+ goto fail3;
+ }
+
+#if EFSYS_OPT_RX_PACKED_STREAM
+ if (ps_buf_size != 0) {
+ /* Check if datapath firmware supports packed stream mode */
+ if (encp->enc_rx_packed_stream_supported == B_FALSE) {
+ rc = ENOTSUP;
+ goto fail4;
+ }
+ /* Check if packed stream allows configurable buffer sizes */
+ if ((type != EFX_RXQ_TYPE_PACKED_STREAM_1M) &&
+ (encp->enc_rx_var_packed_stream_supported == B_FALSE)) {
+ rc = ENOTSUP;
+ goto fail5;
+ }
+ }
+#else /* EFSYS_OPT_RX_PACKED_STREAM */
+ EFSYS_ASSERT(ps_buf_size == 0);
+#endif /* EFSYS_OPT_RX_PACKED_STREAM */
+
+ /* Scatter can only be disabled if the firmware supports doing so */
+ if (type == EFX_RXQ_TYPE_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;
+
+ erp->er_eep = eep;
+ erp->er_label = label;
+
+ ef10_ev_rxlabel_init(eep, erp, label, ps_buf_size != 0);
+
+ return (0);
+
+fail6:
+ EFSYS_PROBE(fail6);
+#if EFSYS_OPT_RX_PACKED_STREAM
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+#endif /* EFSYS_OPT_RX_PACKED_STREAM */
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ void
+ef10_rx_qdestroy(
+ __in efx_rxq_t *erp)
+{
+ efx_nic_t *enp = erp->er_enp;
+ efx_evq_t *eep = erp->er_eep;
+ unsigned int label = erp->er_label;
+
+ ef10_ev_rxlabel_fini(eep, label);
+
+ EFSYS_ASSERT(enp->en_rx_qcount != 0);
+ --enp->en_rx_qcount;
+
+ EFSYS_KMEM_FREE(enp->en_esip, sizeof (efx_rxq_t), erp);
+}
+
+ void
+ef10_rx_fini(
+ __in efx_nic_t *enp)
+{
+#if EFSYS_OPT_RX_SCALE
+ if (enp->en_rss_support != EFX_RX_SCALE_UNAVAILABLE) {
+ (void) efx_mcdi_rss_context_free(enp, enp->en_rss_context);
+ }
+ enp->en_rss_context = 0;
+ enp->en_rss_support = EFX_RX_SCALE_UNAVAILABLE;
+#else
+ _NOTE(ARGUNUSED(enp))
+#endif /* EFSYS_OPT_RX_SCALE */
+}
+
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
Code Review / deb_dpdk.git / blobdiff