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numam-dpdk/drivers/net/dpaa2/base/dpaa2_hw_dpni.c
Nipun Gupta 5f82296249 net/dpaa2: support custom hash key 
The DPAA2 hw can support a special offset based
configuration to program distribution on hash.
This is for all cases, which are not directly supported.

e.g. HASH based distribution on inner ip header
of a GRE tunnel.

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2019-01-14 17:44:29 +01:00

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9.8 KiB
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/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
* Copyright 2016-2018 NXP
*
*/
#include <time.h>
#include <net/if.h>
#include <rte_mbuf.h>
#include <rte_ethdev_driver.h>
#include <rte_malloc.h>
#include <rte_memcpy.h>
#include <rte_string_fns.h>
#include <rte_cycles.h>
#include <rte_kvargs.h>
#include <rte_dev.h>
#include <dpaa2_pmd_logs.h>
#include <dpaa2_hw_pvt.h>
#include <dpaa2_hw_mempool.h>
#include "../dpaa2_ethdev.h"
static int
dpaa2_distset_to_dpkg_profile_cfg(
uint64_t req_dist_set,
struct dpkg_profile_cfg *kg_cfg);
int
rte_pmd_dpaa2_set_custom_hash(uint16_t port_id,
uint16_t offset,
uint8_t size)
{
struct rte_eth_dev *eth_dev = &rte_eth_devices[port_id];
struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
struct fsl_mc_io *dpni = priv->hw;
struct dpni_rx_tc_dist_cfg tc_cfg;
struct dpkg_profile_cfg kg_cfg;
void *p_params;
int ret, tc_index = 0;
p_params = rte_zmalloc(
NULL, DIST_PARAM_IOVA_SIZE, RTE_CACHE_LINE_SIZE);
if (!p_params) {
DPAA2_PMD_ERR("Unable to allocate flow-dist parameters");
return -ENOMEM;
}
kg_cfg.extracts[0].type = DPKG_EXTRACT_FROM_DATA;
kg_cfg.extracts[0].extract.from_data.offset = offset;
kg_cfg.extracts[0].extract.from_data.size = size;
kg_cfg.num_extracts = 1;
ret = dpkg_prepare_key_cfg(&kg_cfg, p_params);
if (ret) {
DPAA2_PMD_ERR("Unable to prepare extract parameters");
rte_free(p_params);
return ret;
}
memset(&tc_cfg, 0, sizeof(struct dpni_rx_tc_dist_cfg));
tc_cfg.key_cfg_iova = (size_t)(DPAA2_VADDR_TO_IOVA(p_params));
tc_cfg.dist_size = eth_dev->data->nb_rx_queues;
tc_cfg.dist_mode = DPNI_DIST_MODE_HASH;
ret = dpni_set_rx_tc_dist(dpni, CMD_PRI_LOW, priv->token, tc_index,
&tc_cfg);
rte_free(p_params);
if (ret) {
DPAA2_PMD_ERR(
"Setting distribution for Rx failed with err: %d",
ret);
return ret;
}
return 0;
}
int
dpaa2_setup_flow_dist(struct rte_eth_dev *eth_dev,
uint64_t req_dist_set)
{
struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
struct fsl_mc_io *dpni = priv->hw;
struct dpni_rx_tc_dist_cfg tc_cfg;
struct dpkg_profile_cfg kg_cfg;
void *p_params;
int ret, tc_index = 0;
p_params = rte_malloc(
NULL, DIST_PARAM_IOVA_SIZE, RTE_CACHE_LINE_SIZE);
if (!p_params) {
DPAA2_PMD_ERR("Unable to allocate flow-dist parameters");
return -ENOMEM;
}
memset(p_params, 0, DIST_PARAM_IOVA_SIZE);
memset(&tc_cfg, 0, sizeof(struct dpni_rx_tc_dist_cfg));
ret = dpaa2_distset_to_dpkg_profile_cfg(req_dist_set, &kg_cfg);
if (ret) {
DPAA2_PMD_ERR("Given RSS Hash (%" PRIx64 ") not supported",
req_dist_set);
rte_free(p_params);
return ret;
}
tc_cfg.key_cfg_iova = (uint64_t)(DPAA2_VADDR_TO_IOVA(p_params));
tc_cfg.dist_size = eth_dev->data->nb_rx_queues;
tc_cfg.dist_mode = DPNI_DIST_MODE_HASH;
ret = dpkg_prepare_key_cfg(&kg_cfg, p_params);
if (ret) {
DPAA2_PMD_ERR("Unable to prepare extract parameters");
rte_free(p_params);
return ret;
}
ret = dpni_set_rx_tc_dist(dpni, CMD_PRI_LOW, priv->token, tc_index,
&tc_cfg);
rte_free(p_params);
if (ret) {
DPAA2_PMD_ERR(
"Setting distribution for Rx failed with err: %d",
ret);
return ret;
}
return 0;
}
int dpaa2_remove_flow_dist(
struct rte_eth_dev *eth_dev,
uint8_t tc_index)
{
struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
struct fsl_mc_io *dpni = priv->hw;
struct dpni_rx_tc_dist_cfg tc_cfg;
struct dpkg_profile_cfg kg_cfg;
void *p_params;
int ret;
p_params = rte_malloc(
NULL, DIST_PARAM_IOVA_SIZE, RTE_CACHE_LINE_SIZE);
if (!p_params) {
DPAA2_PMD_ERR("Unable to allocate flow-dist parameters");
return -ENOMEM;
}
memset(p_params, 0, DIST_PARAM_IOVA_SIZE);
memset(&tc_cfg, 0, sizeof(struct dpni_rx_tc_dist_cfg));
kg_cfg.num_extracts = 0;
tc_cfg.key_cfg_iova = (uint64_t)(DPAA2_VADDR_TO_IOVA(p_params));
tc_cfg.dist_size = 0;
tc_cfg.dist_mode = DPNI_DIST_MODE_NONE;
ret = dpkg_prepare_key_cfg(&kg_cfg, p_params);
if (ret) {
DPAA2_PMD_ERR("Unable to prepare extract parameters");
rte_free(p_params);
return ret;
}
ret = dpni_set_rx_tc_dist(dpni, CMD_PRI_LOW, priv->token, tc_index,
&tc_cfg);
rte_free(p_params);
if (ret)
DPAA2_PMD_ERR(
"Setting distribution for Rx failed with err: %d",
ret);
return ret;
}
static int
dpaa2_distset_to_dpkg_profile_cfg(
uint64_t req_dist_set,
struct dpkg_profile_cfg *kg_cfg)
{
uint32_t loop = 0, i = 0, dist_field = 0;
int l2_configured = 0, l3_configured = 0;
int l4_configured = 0, sctp_configured = 0;
memset(kg_cfg, 0, sizeof(struct dpkg_profile_cfg));
while (req_dist_set) {
if (req_dist_set % 2 != 0) {
dist_field = 1U << loop;
switch (dist_field) {
case ETH_RSS_L2_PAYLOAD:
if (l2_configured)
break;
l2_configured = 1;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_ETH;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_ETH_TYPE;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
i++;
break;
case ETH_RSS_IPV4:
case ETH_RSS_FRAG_IPV4:
case ETH_RSS_NONFRAG_IPV4_OTHER:
case ETH_RSS_IPV6:
case ETH_RSS_FRAG_IPV6:
case ETH_RSS_NONFRAG_IPV6_OTHER:
case ETH_RSS_IPV6_EX:
if (l3_configured)
break;
l3_configured = 1;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_IP;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_IP_SRC;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
i++;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_IP;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_IP_DST;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
i++;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_IP;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_IP_PROTO;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
kg_cfg->num_extracts++;
i++;
break;
case ETH_RSS_NONFRAG_IPV4_TCP:
case ETH_RSS_NONFRAG_IPV6_TCP:
case ETH_RSS_NONFRAG_IPV4_UDP:
case ETH_RSS_NONFRAG_IPV6_UDP:
case ETH_RSS_IPV6_TCP_EX:
case ETH_RSS_IPV6_UDP_EX:
if (l4_configured)
break;
l4_configured = 1;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_TCP;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_TCP_PORT_SRC;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
i++;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_TCP;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_TCP_PORT_SRC;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
i++;
break;
case ETH_RSS_NONFRAG_IPV4_SCTP:
case ETH_RSS_NONFRAG_IPV6_SCTP:
if (sctp_configured)
break;
sctp_configured = 1;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_SCTP;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_SCTP_PORT_SRC;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
i++;
kg_cfg->extracts[i].extract.from_hdr.prot =
NET_PROT_SCTP;
kg_cfg->extracts[i].extract.from_hdr.field =
NH_FLD_SCTP_PORT_DST;
kg_cfg->extracts[i].type =
DPKG_EXTRACT_FROM_HDR;
kg_cfg->extracts[i].extract.from_hdr.type =
DPKG_FULL_FIELD;
i++;
break;
default:
DPAA2_PMD_WARN(
"Unsupported flow dist option %x",
dist_field);
return -EINVAL;
}
}
req_dist_set = req_dist_set >> 1;
loop++;
}
kg_cfg->num_extracts = i;
return 0;
}
int
dpaa2_attach_bp_list(struct dpaa2_dev_priv *priv,
void *blist)
{
/* Function to attach a DPNI with a buffer pool list. Buffer pool list
* handle is passed in blist.
*/
int32_t retcode;
struct fsl_mc_io *dpni = priv->hw;
struct dpni_pools_cfg bpool_cfg;
struct dpaa2_bp_list *bp_list = (struct dpaa2_bp_list *)blist;
struct dpni_buffer_layout layout;
int tot_size;
/* ... rx buffer layout .
* Check alignment for buffer layouts first
*/
/* ... rx buffer layout ... */
tot_size = RTE_PKTMBUF_HEADROOM;
tot_size = RTE_ALIGN_CEIL(tot_size, DPAA2_PACKET_LAYOUT_ALIGN);
memset(&layout, 0, sizeof(struct dpni_buffer_layout));
layout.options = DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM |
DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
DPNI_BUF_LAYOUT_OPT_PARSER_RESULT |
DPNI_BUF_LAYOUT_OPT_DATA_ALIGN |
DPNI_BUF_LAYOUT_OPT_TIMESTAMP |
DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE;
layout.pass_timestamp = true;
layout.pass_frame_status = 1;
layout.private_data_size = DPAA2_FD_PTA_SIZE;
layout.pass_parser_result = 1;
layout.data_align = DPAA2_PACKET_LAYOUT_ALIGN;
layout.data_head_room = tot_size - DPAA2_FD_PTA_SIZE -
DPAA2_MBUF_HW_ANNOTATION;
retcode = dpni_set_buffer_layout(dpni, CMD_PRI_LOW, priv->token,
DPNI_QUEUE_RX, &layout);
if (retcode) {
DPAA2_PMD_ERR("Error configuring buffer pool Rx layout (%d)",
retcode);
return retcode;
}
/*Attach buffer pool to the network interface as described by the user*/
bpool_cfg.num_dpbp = 1;
bpool_cfg.pools[0].dpbp_id = bp_list->buf_pool.dpbp_node->dpbp_id;
bpool_cfg.pools[0].backup_pool = 0;
bpool_cfg.pools[0].buffer_size = RTE_ALIGN_CEIL(bp_list->buf_pool.size,
DPAA2_PACKET_LAYOUT_ALIGN);
bpool_cfg.pools[0].priority_mask = 0;
retcode = dpni_set_pools(dpni, CMD_PRI_LOW, priv->token, &bpool_cfg);
if (retcode != 0) {
DPAA2_PMD_ERR("Error configuring buffer pool on interface."
" bpid = %d error code = %d",
bpool_cfg.pools[0].dpbp_id, retcode);
return retcode;
}
priv->bp_list = bp_list;
return 0;
}
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