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numam-dpdk/drivers/net/i40e/i40e_fdir.c
Wei Zhao 21ecd2d7ab net/i40e: revert fix of flow director check 
This reverts commit 7546dc4a13.

In i40e FDIR PMD code for checking programming status,
when the action of add FDIR filter is ok, i40e NIC will
not write back to programming status descriptor, so if
PMD code check DD is not done after period of time dealy,
it means the add or remove filter action is ok. It only write
back descriptor when fail. So, there is no issue for the original
code.

Fixes: 7546dc4a13 ("net/i40e: fix check of flow director programming status")
Cc: stable@dpdk.org

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2018-08-01 15:36:32 +02:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2015 Intel Corporation
*/
#include <sys/queue.h>
#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <rte_ether.h>
#include <rte_ethdev_driver.h>
#include <rte_log.h>
#include <rte_memzone.h>
#include <rte_malloc.h>
#include <rte_arp.h>
#include <rte_ip.h>
#include <rte_udp.h>
#include <rte_tcp.h>
#include <rte_sctp.h>
#include <rte_hash_crc.h>
#include "i40e_logs.h"
#include "base/i40e_type.h"
#include "base/i40e_prototype.h"
#include "i40e_ethdev.h"
#include "i40e_rxtx.h"
#define I40E_FDIR_MZ_NAME "FDIR_MEMZONE"
#ifndef IPV6_ADDR_LEN
#define IPV6_ADDR_LEN 16
#endif
#define I40E_FDIR_PKT_LEN 512
#define I40E_FDIR_IP_DEFAULT_LEN 420
#define I40E_FDIR_IP_DEFAULT_TTL 0x40
#define I40E_FDIR_IP_DEFAULT_VERSION_IHL 0x45
#define I40E_FDIR_TCP_DEFAULT_DATAOFF 0x50
#define I40E_FDIR_IPv6_DEFAULT_VTC_FLOW 0x60000000
#define I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS 0xFF
#define I40E_FDIR_IPv6_PAYLOAD_LEN 380
#define I40E_FDIR_UDP_DEFAULT_LEN 400
#define I40E_FDIR_GTP_DEFAULT_LEN 384
#define I40E_FDIR_INNER_IP_DEFAULT_LEN 384
#define I40E_FDIR_INNER_IPV6_DEFAULT_LEN 344
#define I40E_FDIR_GTPC_DST_PORT 2123
#define I40E_FDIR_GTPU_DST_PORT 2152
#define I40E_FDIR_GTP_VER_FLAG_0X30 0x30
#define I40E_FDIR_GTP_VER_FLAG_0X32 0x32
#define I40E_FDIR_GTP_MSG_TYPE_0X01 0x01
#define I40E_FDIR_GTP_MSG_TYPE_0XFF 0xFF
/* Wait time for fdir filter programming */
#define I40E_FDIR_MAX_WAIT_US 10000
/* Wait count and interval for fdir filter flush */
#define I40E_FDIR_FLUSH_RETRY 50
#define I40E_FDIR_FLUSH_INTERVAL_MS 5
#define I40E_COUNTER_PF 2
/* Statistic counter index for one pf */
#define I40E_COUNTER_INDEX_FDIR(pf_id) (0 + (pf_id) * I40E_COUNTER_PF)
#define I40E_FDIR_FLOWS ( \
(1ULL << RTE_ETH_FLOW_FRAG_IPV4) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_UDP) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_TCP) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_SCTP) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_OTHER) | \
(1ULL << RTE_ETH_FLOW_FRAG_IPV6) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_UDP) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_TCP) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_SCTP) | \
(1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER) | \
(1ULL << RTE_ETH_FLOW_L2_PAYLOAD))
static int i40e_fdir_filter_programming(struct i40e_pf *pf,
enum i40e_filter_pctype pctype,
const struct rte_eth_fdir_filter *filter,
bool add);
static int i40e_fdir_filter_convert(const struct i40e_fdir_filter_conf *input,
struct i40e_fdir_filter *filter);
static struct i40e_fdir_filter *
i40e_sw_fdir_filter_lookup(struct i40e_fdir_info *fdir_info,
const struct i40e_fdir_input *input);
static int i40e_sw_fdir_filter_insert(struct i40e_pf *pf,
struct i40e_fdir_filter *filter);
static int
i40e_flow_fdir_filter_programming(struct i40e_pf *pf,
enum i40e_filter_pctype pctype,
const struct i40e_fdir_filter_conf *filter,
bool add);
static int
i40e_fdir_rx_queue_init(struct i40e_rx_queue *rxq)
{
struct i40e_hw *hw = I40E_VSI_TO_HW(rxq->vsi);
struct i40e_hmc_obj_rxq rx_ctx;
int err = I40E_SUCCESS;
memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
/* Init the RX queue in hardware */
rx_ctx.dbuff = I40E_RXBUF_SZ_1024 >> I40E_RXQ_CTX_DBUFF_SHIFT;
rx_ctx.hbuff = 0;
rx_ctx.base = rxq->rx_ring_phys_addr / I40E_QUEUE_BASE_ADDR_UNIT;
rx_ctx.qlen = rxq->nb_rx_desc;
#ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
rx_ctx.dsize = 1;
#endif
rx_ctx.dtype = i40e_header_split_none;
rx_ctx.hsplit_0 = I40E_HEADER_SPLIT_NONE;
rx_ctx.rxmax = ETHER_MAX_LEN;
rx_ctx.tphrdesc_ena = 1;
rx_ctx.tphwdesc_ena = 1;
rx_ctx.tphdata_ena = 1;
rx_ctx.tphhead_ena = 1;
rx_ctx.lrxqthresh = 2;
rx_ctx.crcstrip = 0;
rx_ctx.l2tsel = 1;
rx_ctx.showiv = 0;
rx_ctx.prefena = 1;
err = i40e_clear_lan_rx_queue_context(hw, rxq->reg_idx);
if (err != I40E_SUCCESS) {
PMD_DRV_LOG(ERR, "Failed to clear FDIR RX queue context.");
return err;
}
err = i40e_set_lan_rx_queue_context(hw, rxq->reg_idx, &rx_ctx);
if (err != I40E_SUCCESS) {
PMD_DRV_LOG(ERR, "Failed to set FDIR RX queue context.");
return err;
}
rxq->qrx_tail = hw->hw_addr +
I40E_QRX_TAIL(rxq->vsi->base_queue);
rte_wmb();
/* Init the RX tail regieter. */
I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
return err;
}
/*
* i40e_fdir_setup - reserve and initialize the Flow Director resources
* @pf: board private structure
*/
int
i40e_fdir_setup(struct i40e_pf *pf)
{
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
struct i40e_vsi *vsi;
int err = I40E_SUCCESS;
char z_name[RTE_MEMZONE_NAMESIZE];
const struct rte_memzone *mz = NULL;
struct rte_eth_dev *eth_dev = pf->adapter->eth_dev;
if ((pf->flags & I40E_FLAG_FDIR) == 0) {
PMD_INIT_LOG(ERR, "HW doesn't support FDIR");
return I40E_NOT_SUPPORTED;
}
PMD_DRV_LOG(INFO, "FDIR HW Capabilities: num_filters_guaranteed = %u,"
" num_filters_best_effort = %u.",
hw->func_caps.fd_filters_guaranteed,
hw->func_caps.fd_filters_best_effort);
vsi = pf->fdir.fdir_vsi;
if (vsi) {
PMD_DRV_LOG(INFO, "FDIR initialization has been done.");
return I40E_SUCCESS;
}
/* make new FDIR VSI */
vsi = i40e_vsi_setup(pf, I40E_VSI_FDIR, pf->main_vsi, 0);
if (!vsi) {
PMD_DRV_LOG(ERR, "Couldn't create FDIR VSI.");
return I40E_ERR_NO_AVAILABLE_VSI;
}
pf->fdir.fdir_vsi = vsi;
/*Fdir tx queue setup*/
err = i40e_fdir_setup_tx_resources(pf);
if (err) {
PMD_DRV_LOG(ERR, "Failed to setup FDIR TX resources.");
goto fail_setup_tx;
}
/*Fdir rx queue setup*/
err = i40e_fdir_setup_rx_resources(pf);
if (err) {
PMD_DRV_LOG(ERR, "Failed to setup FDIR RX resources.");
goto fail_setup_rx;
}
err = i40e_tx_queue_init(pf->fdir.txq);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do FDIR TX initialization.");
goto fail_mem;
}
/* need switch on before dev start*/
err = i40e_switch_tx_queue(hw, vsi->base_queue, TRUE);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do fdir TX switch on.");
goto fail_mem;
}
/* Init the rx queue in hardware */
err = i40e_fdir_rx_queue_init(pf->fdir.rxq);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do FDIR RX initialization.");
goto fail_mem;
}
/* switch on rx queue */
err = i40e_switch_rx_queue(hw, vsi->base_queue, TRUE);
if (err) {
PMD_DRV_LOG(ERR, "Failed to do FDIR RX switch on.");
goto fail_mem;
}
/* reserve memory for the fdir programming packet */
snprintf(z_name, sizeof(z_name), "%s_%s_%d",
eth_dev->device->driver->name,
I40E_FDIR_MZ_NAME,
eth_dev->data->port_id);
mz = i40e_memzone_reserve(z_name, I40E_FDIR_PKT_LEN, SOCKET_ID_ANY);
if (!mz) {
PMD_DRV_LOG(ERR, "Cannot init memzone for "
"flow director program packet.");
err = I40E_ERR_NO_MEMORY;
goto fail_mem;
}
pf->fdir.prg_pkt = mz->addr;
pf->fdir.dma_addr = mz->iova;
pf->fdir.match_counter_index = I40E_COUNTER_INDEX_FDIR(hw->pf_id);
PMD_DRV_LOG(INFO, "FDIR setup successfully, with programming queue %u.",
vsi->base_queue);
return I40E_SUCCESS;
fail_mem:
i40e_dev_rx_queue_release(pf->fdir.rxq);
pf->fdir.rxq = NULL;
fail_setup_rx:
i40e_dev_tx_queue_release(pf->fdir.txq);
pf->fdir.txq = NULL;
fail_setup_tx:
i40e_vsi_release(vsi);
pf->fdir.fdir_vsi = NULL;
return err;
}
/*
* i40e_fdir_teardown - release the Flow Director resources
* @pf: board private structure
*/
void
i40e_fdir_teardown(struct i40e_pf *pf)
{
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
struct i40e_vsi *vsi;
vsi = pf->fdir.fdir_vsi;
if (!vsi)
return;
int err = i40e_switch_tx_queue(hw, vsi->base_queue, FALSE);
if (err)
PMD_DRV_LOG(DEBUG, "Failed to do FDIR TX switch off");
err = i40e_switch_rx_queue(hw, vsi->base_queue, FALSE);
if (err)
PMD_DRV_LOG(DEBUG, "Failed to do FDIR RX switch off");
i40e_dev_rx_queue_release(pf->fdir.rxq);
pf->fdir.rxq = NULL;
i40e_dev_tx_queue_release(pf->fdir.txq);
pf->fdir.txq = NULL;
i40e_vsi_release(vsi);
pf->fdir.fdir_vsi = NULL;
}
/* check whether the flow director table in empty */
static inline int
i40e_fdir_empty(struct i40e_hw *hw)
{
uint32_t guarant_cnt, best_cnt;
guarant_cnt = (uint32_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
best_cnt = (uint32_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
if (best_cnt + guarant_cnt > 0)
return -1;
return 0;
}
/*
* Initialize the configuration about bytes stream extracted as flexible payload
* and mask setting
*/
static inline void
i40e_init_flx_pld(struct i40e_pf *pf)
{
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
uint8_t pctype;
int i, index;
uint16_t flow_type;
/*
* Define the bytes stream extracted as flexible payload in
* field vector. By default, select 8 words from the beginning
* of payload as flexible payload.
*/
for (i = I40E_FLXPLD_L2_IDX; i < I40E_MAX_FLXPLD_LAYER; i++) {
index = i * I40E_MAX_FLXPLD_FIED;
pf->fdir.flex_set[index].src_offset = 0;
pf->fdir.flex_set[index].size = I40E_FDIR_MAX_FLEXWORD_NUM;
pf->fdir.flex_set[index].dst_offset = 0;
I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(index), 0x0000C900);
I40E_WRITE_REG(hw,
I40E_PRTQF_FLX_PIT(index + 1), 0x0000FC29);/*non-used*/
I40E_WRITE_REG(hw,
I40E_PRTQF_FLX_PIT(index + 2), 0x0000FC2A);/*non-used*/
}
/* initialize the masks */
for (pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
pctype <= I40E_FILTER_PCTYPE_L2_PAYLOAD; pctype++) {
flow_type = i40e_pctype_to_flowtype(pf->adapter, pctype);
if (flow_type == RTE_ETH_FLOW_UNKNOWN)
continue;
pf->fdir.flex_mask[pctype].word_mask = 0;
i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), 0);
for (i = 0; i < I40E_FDIR_BITMASK_NUM_WORD; i++) {
pf->fdir.flex_mask[pctype].bitmask[i].offset = 0;
pf->fdir.flex_mask[pctype].bitmask[i].mask = 0;
i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), 0);
}
}
}
#define I40E_VALIDATE_FLEX_PIT(flex_pit1, flex_pit2) do { \
if ((flex_pit2).src_offset < \
(flex_pit1).src_offset + (flex_pit1).size) { \
PMD_DRV_LOG(ERR, "src_offset should be not" \
" less than than previous offset" \
" + previous FSIZE."); \
return -EINVAL; \
} \
} while (0)
/*
* i40e_srcoff_to_flx_pit - transform the src_offset into flex_pit structure,
* and the flex_pit will be sorted by it's src_offset value
*/
static inline uint16_t
i40e_srcoff_to_flx_pit(const uint16_t *src_offset,
struct i40e_fdir_flex_pit *flex_pit)
{
uint16_t src_tmp, size, num = 0;
uint16_t i, k, j = 0;
while (j < I40E_FDIR_MAX_FLEX_LEN) {
size = 1;
for (; j < I40E_FDIR_MAX_FLEX_LEN - 1; j++) {
if (src_offset[j + 1] == src_offset[j] + 1)
size++;
else
break;
}
src_tmp = src_offset[j] + 1 - size;
/* the flex_pit need to be sort by src_offset */
for (i = 0; i < num; i++) {
if (src_tmp < flex_pit[i].src_offset)
break;
}
/* if insert required, move backward */
for (k = num; k > i; k--)
flex_pit[k] = flex_pit[k - 1];
/* insert */
flex_pit[i].dst_offset = j + 1 - size;
flex_pit[i].src_offset = src_tmp;
flex_pit[i].size = size;
j++;
num++;
}
return num;
}
/* i40e_check_fdir_flex_payload -check flex payload configuration arguments */
static inline int
i40e_check_fdir_flex_payload(const struct rte_eth_flex_payload_cfg *flex_cfg)
{
struct i40e_fdir_flex_pit flex_pit[I40E_FDIR_MAX_FLEX_LEN];
uint16_t num, i;
for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i++) {
if (flex_cfg->src_offset[i] >= I40E_MAX_FLX_SOURCE_OFF) {
PMD_DRV_LOG(ERR, "exceeds maxmial payload limit.");
return -EINVAL;
}
}
memset(flex_pit, 0, sizeof(flex_pit));
num = i40e_srcoff_to_flx_pit(flex_cfg->src_offset, flex_pit);
if (num > I40E_MAX_FLXPLD_FIED) {
PMD_DRV_LOG(ERR, "exceeds maxmial number of flex fields.");
return -EINVAL;
}
for (i = 0; i < num; i++) {
if (flex_pit[i].size & 0x01 || flex_pit[i].dst_offset & 0x01 ||
flex_pit[i].src_offset & 0x01) {
PMD_DRV_LOG(ERR, "flexpayload should be measured"
" in word");
return -EINVAL;
}
if (i != num - 1)
I40E_VALIDATE_FLEX_PIT(flex_pit[i], flex_pit[i + 1]);
}
return 0;
}
/*
* i40e_check_fdir_flex_conf -check if the flex payload and mask configuration
* arguments are valid
*/
static int
i40e_check_fdir_flex_conf(const struct i40e_adapter *adapter,
const struct rte_eth_fdir_flex_conf *conf)
{
const struct rte_eth_flex_payload_cfg *flex_cfg;
const struct rte_eth_fdir_flex_mask *flex_mask;
uint16_t mask_tmp;
uint8_t nb_bitmask;
uint16_t i, j;
int ret = 0;
enum i40e_filter_pctype pctype;
if (conf == NULL) {
PMD_DRV_LOG(INFO, "NULL pointer.");
return -EINVAL;
}
/* check flexible payload setting configuration */
if (conf->nb_payloads > RTE_ETH_L4_PAYLOAD) {
PMD_DRV_LOG(ERR, "invalid number of payload setting.");
return -EINVAL;
}
for (i = 0; i < conf->nb_payloads; i++) {
flex_cfg = &conf->flex_set[i];
if (flex_cfg->type > RTE_ETH_L4_PAYLOAD) {
PMD_DRV_LOG(ERR, "invalid payload type.");
return -EINVAL;
}
ret = i40e_check_fdir_flex_payload(flex_cfg);
if (ret < 0) {
PMD_DRV_LOG(ERR, "invalid flex payload arguments.");
return -EINVAL;
}
}
/* check flex mask setting configuration */
if (conf->nb_flexmasks >= RTE_ETH_FLOW_MAX) {
PMD_DRV_LOG(ERR, "invalid number of flex masks.");
return -EINVAL;
}
for (i = 0; i < conf->nb_flexmasks; i++) {
flex_mask = &conf->flex_mask[i];
pctype = i40e_flowtype_to_pctype(adapter, flex_mask->flow_type);
if (pctype == I40E_FILTER_PCTYPE_INVALID) {
PMD_DRV_LOG(WARNING, "invalid flow type.");
return -EINVAL;
}
nb_bitmask = 0;
for (j = 0; j < I40E_FDIR_MAX_FLEX_LEN; j += sizeof(uint16_t)) {
mask_tmp = I40E_WORD(flex_mask->mask[j],
flex_mask->mask[j + 1]);
if (mask_tmp != 0x0 && mask_tmp != UINT16_MAX) {
nb_bitmask++;
if (nb_bitmask > I40E_FDIR_BITMASK_NUM_WORD) {
PMD_DRV_LOG(ERR, " exceed maximal"
" number of bitmasks.");
return -EINVAL;
}
}
}
}
return 0;
}
/*
* i40e_set_flx_pld_cfg -configure the rule how bytes stream is extracted as flexible payload
* @pf: board private structure
* @cfg: the rule how bytes stream is extracted as flexible payload
*/
static void
i40e_set_flx_pld_cfg(struct i40e_pf *pf,
const struct rte_eth_flex_payload_cfg *cfg)
{
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
struct i40e_fdir_flex_pit flex_pit[I40E_MAX_FLXPLD_FIED];
uint32_t flx_pit, flx_ort;
uint16_t num, min_next_off; /* in words */
uint8_t field_idx = 0;
uint8_t layer_idx = 0;
uint16_t i;
if (cfg->type == RTE_ETH_L2_PAYLOAD)
layer_idx = I40E_FLXPLD_L2_IDX;
else if (cfg->type == RTE_ETH_L3_PAYLOAD)
layer_idx = I40E_FLXPLD_L3_IDX;
else if (cfg->type == RTE_ETH_L4_PAYLOAD)
layer_idx = I40E_FLXPLD_L4_IDX;
memset(flex_pit, 0, sizeof(flex_pit));
num = RTE_MIN(i40e_srcoff_to_flx_pit(cfg->src_offset, flex_pit),
RTE_DIM(flex_pit));
if (num) {
flx_ort = (1 << I40E_GLQF_ORT_FLX_PAYLOAD_SHIFT) |
(num << I40E_GLQF_ORT_FIELD_CNT_SHIFT) |
(layer_idx * I40E_MAX_FLXPLD_FIED);
I40E_WRITE_GLB_REG(hw, I40E_GLQF_ORT(33 + layer_idx), flx_ort);
}
for (i = 0; i < num; i++) {
field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i;
/* record the info in fdir structure */
pf->fdir.flex_set[field_idx].src_offset =
flex_pit[i].src_offset / sizeof(uint16_t);
pf->fdir.flex_set[field_idx].size =
flex_pit[i].size / sizeof(uint16_t);
pf->fdir.flex_set[field_idx].dst_offset =
flex_pit[i].dst_offset / sizeof(uint16_t);
flx_pit = MK_FLX_PIT(pf->fdir.flex_set[field_idx].src_offset,
pf->fdir.flex_set[field_idx].size,
pf->fdir.flex_set[field_idx].dst_offset);
I40E_WRITE_REG(hw, I40E_PRTQF_FLX_PIT(field_idx), flx_pit);
}
min_next_off = pf->fdir.flex_set[field_idx].src_offset +
pf->fdir.flex_set[field_idx].size;
for (; i < I40E_MAX_FLXPLD_FIED; i++) {
/* set the non-used register obeying register's constrain */
flx_pit = MK_FLX_PIT(min_next_off, NONUSE_FLX_PIT_FSIZE,
NONUSE_FLX_PIT_DEST_OFF);
I40E_WRITE_REG(hw,
I40E_PRTQF_FLX_PIT(layer_idx * I40E_MAX_FLXPLD_FIED + i),
flx_pit);
min_next_off++;
}
}
/*
* i40e_set_flex_mask_on_pctype - configure the mask on flexible payload
* @pf: board private structure
* @pctype: packet classify type
* @flex_masks: mask for flexible payload
*/
static void
i40e_set_flex_mask_on_pctype(struct i40e_pf *pf,
enum i40e_filter_pctype pctype,
const struct rte_eth_fdir_flex_mask *mask_cfg)
{
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
struct i40e_fdir_flex_mask *flex_mask;
uint32_t flxinset, fd_mask;
uint16_t mask_tmp;
uint8_t i, nb_bitmask = 0;
flex_mask = &pf->fdir.flex_mask[pctype];
memset(flex_mask, 0, sizeof(struct i40e_fdir_flex_mask));
for (i = 0; i < I40E_FDIR_MAX_FLEX_LEN; i += sizeof(uint16_t)) {
mask_tmp = I40E_WORD(mask_cfg->mask[i], mask_cfg->mask[i + 1]);
if (mask_tmp != 0x0) {
flex_mask->word_mask |=
I40E_FLEX_WORD_MASK(i / sizeof(uint16_t));
if (mask_tmp != UINT16_MAX) {
/* set bit mask */
flex_mask->bitmask[nb_bitmask].mask = ~mask_tmp;
flex_mask->bitmask[nb_bitmask].offset =
i / sizeof(uint16_t);
nb_bitmask++;
}
}
}
/* write mask to hw */
flxinset = (flex_mask->word_mask <<
I40E_PRTQF_FD_FLXINSET_INSET_SHIFT) &
I40E_PRTQF_FD_FLXINSET_INSET_MASK;
i40e_write_rx_ctl(hw, I40E_PRTQF_FD_FLXINSET(pctype), flxinset);
for (i = 0; i < nb_bitmask; i++) {
fd_mask = (flex_mask->bitmask[i].mask <<
I40E_PRTQF_FD_MSK_MASK_SHIFT) &
I40E_PRTQF_FD_MSK_MASK_MASK;
fd_mask |= ((flex_mask->bitmask[i].offset +
I40E_FLX_OFFSET_IN_FIELD_VECTOR) <<
I40E_PRTQF_FD_MSK_OFFSET_SHIFT) &
I40E_PRTQF_FD_MSK_OFFSET_MASK;
i40e_write_rx_ctl(hw, I40E_PRTQF_FD_MSK(pctype, i), fd_mask);
}
}
/*
* Configure flow director related setting
*/
int
i40e_fdir_configure(struct rte_eth_dev *dev)
{
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct rte_eth_fdir_flex_conf *conf;
enum i40e_filter_pctype pctype;
uint32_t val;
uint8_t i;
int ret = 0;
/*
* configuration need to be done before
* flow director filters are added
* If filters exist, flush them.
*/
if (i40e_fdir_empty(hw) < 0) {
ret = i40e_fdir_flush(dev);
if (ret) {
PMD_DRV_LOG(ERR, "failed to flush fdir table.");
return ret;
}
}
/* enable FDIR filter */
val = i40e_read_rx_ctl(hw, I40E_PFQF_CTL_0);
val |= I40E_PFQF_CTL_0_FD_ENA_MASK;
i40e_write_rx_ctl(hw, I40E_PFQF_CTL_0, val);
i40e_init_flx_pld(pf); /* set flex config to default value */
conf = &dev->data->dev_conf.fdir_conf.flex_conf;
ret = i40e_check_fdir_flex_conf(pf->adapter, conf);
if (ret < 0) {
PMD_DRV_LOG(ERR, " invalid configuration arguments.");
return -EINVAL;
}
if (!pf->support_multi_driver) {
/* configure flex payload */
for (i = 0; i < conf->nb_payloads; i++)
i40e_set_flx_pld_cfg(pf, &conf->flex_set[i]);
/* configure flex mask*/
for (i = 0; i < conf->nb_flexmasks; i++) {
if (hw->mac.type == I40E_MAC_X722) {
/* get pctype value in fd pctype register */
pctype = (enum i40e_filter_pctype)
i40e_read_rx_ctl(hw,
I40E_GLQF_FD_PCTYPES(
(int)i40e_flowtype_to_pctype(
pf->adapter,
conf->flex_mask[i].flow_type)));
} else {
pctype = i40e_flowtype_to_pctype(pf->adapter,
conf->flex_mask[i].flow_type);
}
i40e_set_flex_mask_on_pctype(pf, pctype,
&conf->flex_mask[i]);
}
} else {
PMD_DRV_LOG(ERR, "Not support flexible payload.");
}
return ret;
}
static inline int
i40e_fdir_fill_eth_ip_head(const struct rte_eth_fdir_input *fdir_input,
unsigned char *raw_pkt,
bool vlan)
{
static uint8_t vlan_frame[] = {0x81, 0, 0, 0};
uint16_t *ether_type;
uint8_t len = 2 * sizeof(struct ether_addr);
struct ipv4_hdr *ip;
struct ipv6_hdr *ip6;
static const uint8_t next_proto[] = {
[RTE_ETH_FLOW_FRAG_IPV4] = IPPROTO_IP,
[RTE_ETH_FLOW_NONFRAG_IPV4_TCP] = IPPROTO_TCP,
[RTE_ETH_FLOW_NONFRAG_IPV4_UDP] = IPPROTO_UDP,
[RTE_ETH_FLOW_NONFRAG_IPV4_SCTP] = IPPROTO_SCTP,
[RTE_ETH_FLOW_NONFRAG_IPV4_OTHER] = IPPROTO_IP,
[RTE_ETH_FLOW_FRAG_IPV6] = IPPROTO_NONE,
[RTE_ETH_FLOW_NONFRAG_IPV6_TCP] = IPPROTO_TCP,
[RTE_ETH_FLOW_NONFRAG_IPV6_UDP] = IPPROTO_UDP,
[RTE_ETH_FLOW_NONFRAG_IPV6_SCTP] = IPPROTO_SCTP,
[RTE_ETH_FLOW_NONFRAG_IPV6_OTHER] = IPPROTO_NONE,
};
raw_pkt += 2 * sizeof(struct ether_addr);
if (vlan && fdir_input->flow_ext.vlan_tci) {
rte_memcpy(raw_pkt, vlan_frame, sizeof(vlan_frame));
rte_memcpy(raw_pkt + sizeof(uint16_t),
&fdir_input->flow_ext.vlan_tci,
sizeof(uint16_t));
raw_pkt += sizeof(vlan_frame);
len += sizeof(vlan_frame);
}
ether_type = (uint16_t *)raw_pkt;
raw_pkt += sizeof(uint16_t);
len += sizeof(uint16_t);
switch (fdir_input->flow_type) {
case RTE_ETH_FLOW_L2_PAYLOAD:
*ether_type = fdir_input->flow.l2_flow.ether_type;
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
case RTE_ETH_FLOW_NONFRAG_IPV4_SCTP:
case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
case RTE_ETH_FLOW_FRAG_IPV4:
ip = (struct ipv4_hdr *)raw_pkt;
*ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
ip->version_ihl = I40E_FDIR_IP_DEFAULT_VERSION_IHL;
/* set len to by default */
ip->total_length = rte_cpu_to_be_16(I40E_FDIR_IP_DEFAULT_LEN);
ip->next_proto_id = fdir_input->flow.ip4_flow.proto ?
fdir_input->flow.ip4_flow.proto :
next_proto[fdir_input->flow_type];
ip->time_to_live = fdir_input->flow.ip4_flow.ttl ?
fdir_input->flow.ip4_flow.ttl :
I40E_FDIR_IP_DEFAULT_TTL;
ip->type_of_service = fdir_input->flow.ip4_flow.tos;
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
ip->src_addr = fdir_input->flow.ip4_flow.dst_ip;
ip->dst_addr = fdir_input->flow.ip4_flow.src_ip;
len += sizeof(struct ipv4_hdr);
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
case RTE_ETH_FLOW_NONFRAG_IPV6_SCTP:
case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
case RTE_ETH_FLOW_FRAG_IPV6:
ip6 = (struct ipv6_hdr *)raw_pkt;
*ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv6);
ip6->vtc_flow =
rte_cpu_to_be_32(I40E_FDIR_IPv6_DEFAULT_VTC_FLOW |
(fdir_input->flow.ipv6_flow.tc <<
I40E_FDIR_IPv6_TC_OFFSET));
ip6->payload_len =
rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
ip6->proto = fdir_input->flow.ipv6_flow.proto ?
fdir_input->flow.ipv6_flow.proto :
next_proto[fdir_input->flow_type];
ip6->hop_limits = fdir_input->flow.ipv6_flow.hop_limits ?
fdir_input->flow.ipv6_flow.hop_limits :
I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS;
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
rte_memcpy(&(ip6->src_addr),
&(fdir_input->flow.ipv6_flow.dst_ip),
IPV6_ADDR_LEN);
rte_memcpy(&(ip6->dst_addr),
&(fdir_input->flow.ipv6_flow.src_ip),
IPV6_ADDR_LEN);
len += sizeof(struct ipv6_hdr);
break;
default:
PMD_DRV_LOG(ERR, "unknown flow type %u.",
fdir_input->flow_type);
return -1;
}
return len;
}
/*
* i40e_fdir_construct_pkt - construct packet based on fields in input
* @pf: board private structure
* @fdir_input: input set of the flow director entry
* @raw_pkt: a packet to be constructed
*/
static int
i40e_fdir_construct_pkt(struct i40e_pf *pf,
const struct rte_eth_fdir_input *fdir_input,
unsigned char *raw_pkt)
{
unsigned char *payload, *ptr;
struct udp_hdr *udp;
struct tcp_hdr *tcp;
struct sctp_hdr *sctp;
uint8_t size, dst = 0;
uint8_t i, pit_idx, set_idx = I40E_FLXPLD_L4_IDX; /* use l4 by default*/
int len;
/* fill the ethernet and IP head */
len = i40e_fdir_fill_eth_ip_head(fdir_input, raw_pkt,
!!fdir_input->flow_ext.vlan_tci);
if (len < 0)
return -EINVAL;
/* fill the L4 head */
switch (fdir_input->flow_type) {
case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
udp = (struct udp_hdr *)(raw_pkt + len);
payload = (unsigned char *)udp + sizeof(struct udp_hdr);
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
udp->src_port = fdir_input->flow.udp4_flow.dst_port;
udp->dst_port = fdir_input->flow.udp4_flow.src_port;
udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
tcp = (struct tcp_hdr *)(raw_pkt + len);
payload = (unsigned char *)tcp + sizeof(struct tcp_hdr);
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
tcp->src_port = fdir_input->flow.tcp4_flow.dst_port;
tcp->dst_port = fdir_input->flow.tcp4_flow.src_port;
tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_SCTP:
sctp = (struct sctp_hdr *)(raw_pkt + len);
payload = (unsigned char *)sctp + sizeof(struct sctp_hdr);
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
sctp->src_port = fdir_input->flow.sctp4_flow.dst_port;
sctp->dst_port = fdir_input->flow.sctp4_flow.src_port;
sctp->tag = fdir_input->flow.sctp4_flow.verify_tag;
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
case RTE_ETH_FLOW_FRAG_IPV4:
payload = raw_pkt + len;
set_idx = I40E_FLXPLD_L3_IDX;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
udp = (struct udp_hdr *)(raw_pkt + len);
payload = (unsigned char *)udp + sizeof(struct udp_hdr);
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
udp->src_port = fdir_input->flow.udp6_flow.dst_port;
udp->dst_port = fdir_input->flow.udp6_flow.src_port;
udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
tcp = (struct tcp_hdr *)(raw_pkt + len);
payload = (unsigned char *)tcp + sizeof(struct tcp_hdr);
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
tcp->src_port = fdir_input->flow.udp6_flow.dst_port;
tcp->dst_port = fdir_input->flow.udp6_flow.src_port;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_SCTP:
sctp = (struct sctp_hdr *)(raw_pkt + len);
payload = (unsigned char *)sctp + sizeof(struct sctp_hdr);
/*
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
sctp->src_port = fdir_input->flow.sctp6_flow.dst_port;
sctp->dst_port = fdir_input->flow.sctp6_flow.src_port;
sctp->tag = fdir_input->flow.sctp6_flow.verify_tag;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
case RTE_ETH_FLOW_FRAG_IPV6:
payload = raw_pkt + len;
set_idx = I40E_FLXPLD_L3_IDX;
break;
case RTE_ETH_FLOW_L2_PAYLOAD:
payload = raw_pkt + len;
/*
* ARP packet is a special case on which the payload
* starts after the whole ARP header
*/
if (fdir_input->flow.l2_flow.ether_type ==
rte_cpu_to_be_16(ETHER_TYPE_ARP))
payload += sizeof(struct arp_hdr);
set_idx = I40E_FLXPLD_L2_IDX;
break;
default:
PMD_DRV_LOG(ERR, "unknown flow type %u.", fdir_input->flow_type);
return -EINVAL;
}
/* fill the flexbytes to payload */
for (i = 0; i < I40E_MAX_FLXPLD_FIED; i++) {
pit_idx = set_idx * I40E_MAX_FLXPLD_FIED + i;
size = pf->fdir.flex_set[pit_idx].size;
if (size == 0)
continue;
dst = pf->fdir.flex_set[pit_idx].dst_offset * sizeof(uint16_t);
ptr = payload +
pf->fdir.flex_set[pit_idx].src_offset * sizeof(uint16_t);
rte_memcpy(ptr,
&fdir_input->flow_ext.flexbytes[dst],
size * sizeof(uint16_t));
}
return 0;
}
static struct i40e_customized_pctype *
i40e_flow_fdir_find_customized_pctype(struct i40e_pf *pf, uint8_t pctype)
{
struct i40e_customized_pctype *cus_pctype;
enum i40e_new_pctype i = I40E_CUSTOMIZED_GTPC;
for (; i < I40E_CUSTOMIZED_MAX; i++) {
cus_pctype = &pf->customized_pctype[i];
if (pctype == cus_pctype->pctype)
return cus_pctype;
}
return NULL;
}
static inline int
i40e_flow_fdir_fill_eth_ip_head(struct i40e_pf *pf,
const struct i40e_fdir_input *fdir_input,
unsigned char *raw_pkt,
bool vlan)
{
struct i40e_customized_pctype *cus_pctype = NULL;
static uint8_t vlan_frame[] = {0x81, 0, 0, 0};
uint16_t *ether_type;
uint8_t len = 2 * sizeof(struct ether_addr);
struct ipv4_hdr *ip;
struct ipv6_hdr *ip6;
uint8_t pctype = fdir_input->pctype;
bool is_customized_pctype = fdir_input->flow_ext.customized_pctype;
static const uint8_t next_proto[] = {
[I40E_FILTER_PCTYPE_FRAG_IPV4] = IPPROTO_IP,
[I40E_FILTER_PCTYPE_NONF_IPV4_TCP] = IPPROTO_TCP,
[I40E_FILTER_PCTYPE_NONF_IPV4_UDP] = IPPROTO_UDP,
[I40E_FILTER_PCTYPE_NONF_IPV4_SCTP] = IPPROTO_SCTP,
[I40E_FILTER_PCTYPE_NONF_IPV4_OTHER] = IPPROTO_IP,
[I40E_FILTER_PCTYPE_FRAG_IPV6] = IPPROTO_NONE,
[I40E_FILTER_PCTYPE_NONF_IPV6_TCP] = IPPROTO_TCP,
[I40E_FILTER_PCTYPE_NONF_IPV6_UDP] = IPPROTO_UDP,
[I40E_FILTER_PCTYPE_NONF_IPV6_SCTP] = IPPROTO_SCTP,
[I40E_FILTER_PCTYPE_NONF_IPV6_OTHER] = IPPROTO_NONE,
};
raw_pkt += 2 * sizeof(struct ether_addr);
if (vlan && fdir_input->flow_ext.vlan_tci) {
rte_memcpy(raw_pkt, vlan_frame, sizeof(vlan_frame));
rte_memcpy(raw_pkt + sizeof(uint16_t),
&fdir_input->flow_ext.vlan_tci,
sizeof(uint16_t));
raw_pkt += sizeof(vlan_frame);
len += sizeof(vlan_frame);
}
ether_type = (uint16_t *)raw_pkt;
raw_pkt += sizeof(uint16_t);
len += sizeof(uint16_t);
if (is_customized_pctype) {
cus_pctype = i40e_flow_fdir_find_customized_pctype(pf, pctype);
if (!cus_pctype) {
PMD_DRV_LOG(ERR, "unknown pctype %u.",
fdir_input->pctype);
return -1;
}
}
if (pctype == I40E_FILTER_PCTYPE_L2_PAYLOAD)
*ether_type = fdir_input->flow.l2_flow.ether_type;
else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_TCP ||
pctype == I40E_FILTER_PCTYPE_NONF_IPV4_UDP ||
pctype == I40E_FILTER_PCTYPE_NONF_IPV4_SCTP ||
pctype == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER ||
pctype == I40E_FILTER_PCTYPE_FRAG_IPV4 ||
is_customized_pctype) {
ip = (struct ipv4_hdr *)raw_pkt;
*ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
ip->version_ihl = I40E_FDIR_IP_DEFAULT_VERSION_IHL;
/* set len to by default */
ip->total_length = rte_cpu_to_be_16(I40E_FDIR_IP_DEFAULT_LEN);
ip->time_to_live = fdir_input->flow.ip4_flow.ttl ?
fdir_input->flow.ip4_flow.ttl :
I40E_FDIR_IP_DEFAULT_TTL;
ip->type_of_service = fdir_input->flow.ip4_flow.tos;
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
ip->src_addr = fdir_input->flow.ip4_flow.dst_ip;
ip->dst_addr = fdir_input->flow.ip4_flow.src_ip;
if (!is_customized_pctype)
ip->next_proto_id = fdir_input->flow.ip4_flow.proto ?
fdir_input->flow.ip4_flow.proto :
next_proto[fdir_input->pctype];
else if (cus_pctype->index == I40E_CUSTOMIZED_GTPC ||
cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV4 ||
cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV6 ||
cus_pctype->index == I40E_CUSTOMIZED_GTPU)
ip->next_proto_id = IPPROTO_UDP;
len += sizeof(struct ipv4_hdr);
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_TCP ||
pctype == I40E_FILTER_PCTYPE_NONF_IPV6_UDP ||
pctype == I40E_FILTER_PCTYPE_NONF_IPV6_SCTP ||
pctype == I40E_FILTER_PCTYPE_NONF_IPV6_OTHER ||
pctype == I40E_FILTER_PCTYPE_FRAG_IPV6) {
ip6 = (struct ipv6_hdr *)raw_pkt;
*ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv6);
ip6->vtc_flow =
rte_cpu_to_be_32(I40E_FDIR_IPv6_DEFAULT_VTC_FLOW |
(fdir_input->flow.ipv6_flow.tc <<
I40E_FDIR_IPv6_TC_OFFSET));
ip6->payload_len =
rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
ip6->proto = fdir_input->flow.ipv6_flow.proto ?
fdir_input->flow.ipv6_flow.proto :
next_proto[fdir_input->pctype];
ip6->hop_limits = fdir_input->flow.ipv6_flow.hop_limits ?
fdir_input->flow.ipv6_flow.hop_limits :
I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS;
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
rte_memcpy(&ip6->src_addr,
&fdir_input->flow.ipv6_flow.dst_ip,
IPV6_ADDR_LEN);
rte_memcpy(&ip6->dst_addr,
&fdir_input->flow.ipv6_flow.src_ip,
IPV6_ADDR_LEN);
len += sizeof(struct ipv6_hdr);
} else {
PMD_DRV_LOG(ERR, "unknown pctype %u.",
fdir_input->pctype);
return -1;
}
return len;
}
/**
* i40e_flow_fdir_construct_pkt - construct packet based on fields in input
* @pf: board private structure
* @fdir_input: input set of the flow director entry
* @raw_pkt: a packet to be constructed
*/
static int
i40e_flow_fdir_construct_pkt(struct i40e_pf *pf,
const struct i40e_fdir_input *fdir_input,
unsigned char *raw_pkt)
{
unsigned char *payload = NULL;
unsigned char *ptr;
struct udp_hdr *udp;
struct tcp_hdr *tcp;
struct sctp_hdr *sctp;
struct rte_flow_item_gtp *gtp;
struct ipv4_hdr *gtp_ipv4;
struct ipv6_hdr *gtp_ipv6;
uint8_t size, dst = 0;
uint8_t i, pit_idx, set_idx = I40E_FLXPLD_L4_IDX; /* use l4 by default*/
int len;
uint8_t pctype = fdir_input->pctype;
struct i40e_customized_pctype *cus_pctype;
/* raw pcket template - just copy contents of the raw packet */
if (fdir_input->flow_ext.pkt_template) {
memcpy(raw_pkt, fdir_input->flow.raw_flow.packet,
fdir_input->flow.raw_flow.length);
return 0;
}
/* fill the ethernet and IP head */
len = i40e_flow_fdir_fill_eth_ip_head(pf, fdir_input, raw_pkt,
!!fdir_input->flow_ext.vlan_tci);
if (len < 0)
return -EINVAL;
/* fill the L4 head */
if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_UDP) {
udp = (struct udp_hdr *)(raw_pkt + len);
payload = (unsigned char *)udp + sizeof(struct udp_hdr);
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
udp->src_port = fdir_input->flow.udp4_flow.dst_port;
udp->dst_port = fdir_input->flow.udp4_flow.src_port;
udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_TCP) {
tcp = (struct tcp_hdr *)(raw_pkt + len);
payload = (unsigned char *)tcp + sizeof(struct tcp_hdr);
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
tcp->src_port = fdir_input->flow.tcp4_flow.dst_port;
tcp->dst_port = fdir_input->flow.tcp4_flow.src_port;
tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_SCTP) {
sctp = (struct sctp_hdr *)(raw_pkt + len);
payload = (unsigned char *)sctp + sizeof(struct sctp_hdr);
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
sctp->src_port = fdir_input->flow.sctp4_flow.dst_port;
sctp->dst_port = fdir_input->flow.sctp4_flow.src_port;
sctp->tag = fdir_input->flow.sctp4_flow.verify_tag;
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER ||
pctype == I40E_FILTER_PCTYPE_FRAG_IPV4) {
payload = raw_pkt + len;
set_idx = I40E_FLXPLD_L3_IDX;
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_UDP) {
udp = (struct udp_hdr *)(raw_pkt + len);
payload = (unsigned char *)udp + sizeof(struct udp_hdr);
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
udp->src_port = fdir_input->flow.udp6_flow.dst_port;
udp->dst_port = fdir_input->flow.udp6_flow.src_port;
udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_TCP) {
tcp = (struct tcp_hdr *)(raw_pkt + len);
payload = (unsigned char *)tcp + sizeof(struct tcp_hdr);
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
tcp->src_port = fdir_input->flow.udp6_flow.dst_port;
tcp->dst_port = fdir_input->flow.udp6_flow.src_port;
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_SCTP) {
sctp = (struct sctp_hdr *)(raw_pkt + len);
payload = (unsigned char *)sctp + sizeof(struct sctp_hdr);
/**
* The source and destination fields in the transmitted packet
* need to be presented in a reversed order with respect
* to the expected received packets.
*/
sctp->src_port = fdir_input->flow.sctp6_flow.dst_port;
sctp->dst_port = fdir_input->flow.sctp6_flow.src_port;
sctp->tag = fdir_input->flow.sctp6_flow.verify_tag;
} else if (pctype == I40E_FILTER_PCTYPE_NONF_IPV6_OTHER ||
pctype == I40E_FILTER_PCTYPE_FRAG_IPV6) {
payload = raw_pkt + len;
set_idx = I40E_FLXPLD_L3_IDX;
} else if (pctype == I40E_FILTER_PCTYPE_L2_PAYLOAD) {
payload = raw_pkt + len;
/**
* ARP packet is a special case on which the payload
* starts after the whole ARP header
*/
if (fdir_input->flow.l2_flow.ether_type ==
rte_cpu_to_be_16(ETHER_TYPE_ARP))
payload += sizeof(struct arp_hdr);
set_idx = I40E_FLXPLD_L2_IDX;
} else if (fdir_input->flow_ext.customized_pctype) {
/* If customized pctype is used */
cus_pctype = i40e_flow_fdir_find_customized_pctype(pf, pctype);
if (cus_pctype->index == I40E_CUSTOMIZED_GTPC ||
cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV4 ||
cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV6 ||
cus_pctype->index == I40E_CUSTOMIZED_GTPU) {
udp = (struct udp_hdr *)(raw_pkt + len);
udp->dgram_len =
rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
gtp = (struct rte_flow_item_gtp *)
((unsigned char *)udp + sizeof(struct udp_hdr));
gtp->msg_len =
rte_cpu_to_be_16(I40E_FDIR_GTP_DEFAULT_LEN);
gtp->teid = fdir_input->flow.gtp_flow.teid;
gtp->msg_type = I40E_FDIR_GTP_MSG_TYPE_0X01;
/* GTP-C message type is not supported. */
if (cus_pctype->index == I40E_CUSTOMIZED_GTPC) {
udp->dst_port =
rte_cpu_to_be_16(I40E_FDIR_GTPC_DST_PORT);
gtp->v_pt_rsv_flags =
I40E_FDIR_GTP_VER_FLAG_0X32;
} else {
udp->dst_port =
rte_cpu_to_be_16(I40E_FDIR_GTPU_DST_PORT);
gtp->v_pt_rsv_flags =
I40E_FDIR_GTP_VER_FLAG_0X30;
}
if (cus_pctype->index == I40E_CUSTOMIZED_GTPU_IPV4) {
gtp->msg_type = I40E_FDIR_GTP_MSG_TYPE_0XFF;
gtp_ipv4 = (struct ipv4_hdr *)
((unsigned char *)gtp +
sizeof(struct rte_flow_item_gtp));
gtp_ipv4->version_ihl =
I40E_FDIR_IP_DEFAULT_VERSION_IHL;
gtp_ipv4->next_proto_id = IPPROTO_IP;
gtp_ipv4->total_length =
rte_cpu_to_be_16(
I40E_FDIR_INNER_IP_DEFAULT_LEN);
payload = (unsigned char *)gtp_ipv4 +
sizeof(struct ipv4_hdr);
} else if (cus_pctype->index ==
I40E_CUSTOMIZED_GTPU_IPV6) {
gtp->msg_type = I40E_FDIR_GTP_MSG_TYPE_0XFF;
gtp_ipv6 = (struct ipv6_hdr *)
((unsigned char *)gtp +
sizeof(struct rte_flow_item_gtp));
gtp_ipv6->vtc_flow =
rte_cpu_to_be_32(
I40E_FDIR_IPv6_DEFAULT_VTC_FLOW |
(0 << I40E_FDIR_IPv6_TC_OFFSET));
gtp_ipv6->proto = IPPROTO_NONE;
gtp_ipv6->payload_len =
rte_cpu_to_be_16(
I40E_FDIR_INNER_IPV6_DEFAULT_LEN);
gtp_ipv6->hop_limits =
I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS;
payload = (unsigned char *)gtp_ipv6 +
sizeof(struct ipv6_hdr);
} else
payload = (unsigned char *)gtp +
sizeof(struct rte_flow_item_gtp);
}
} else {
PMD_DRV_LOG(ERR, "unknown pctype %u.",
fdir_input->pctype);
return -1;
}
/* fill the flexbytes to payload */
for (i = 0; i < I40E_MAX_FLXPLD_FIED; i++) {
pit_idx = set_idx * I40E_MAX_FLXPLD_FIED + i;
size = pf->fdir.flex_set[pit_idx].size;
if (size == 0)
continue;
dst = pf->fdir.flex_set[pit_idx].dst_offset * sizeof(uint16_t);
ptr = payload +
pf->fdir.flex_set[pit_idx].src_offset * sizeof(uint16_t);
(void)rte_memcpy(ptr,
&fdir_input->flow_ext.flexbytes[dst],
size * sizeof(uint16_t));
}
return 0;
}
/* Construct the tx flags */
static inline uint64_t
i40e_build_ctob(uint32_t td_cmd,
uint32_t td_offset,
unsigned int size,
uint32_t td_tag)
{
return rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DATA |
((uint64_t)td_cmd << I40E_TXD_QW1_CMD_SHIFT) |
((uint64_t)td_offset << I40E_TXD_QW1_OFFSET_SHIFT) |
((uint64_t)size << I40E_TXD_QW1_TX_BUF_SZ_SHIFT) |
((uint64_t)td_tag << I40E_TXD_QW1_L2TAG1_SHIFT));
}
/*
* check the programming status descriptor in rx queue.
* done after Programming Flow Director is programmed on
* tx queue
*/
static inline int
i40e_check_fdir_programming_status(struct i40e_rx_queue *rxq)
{
volatile union i40e_rx_desc *rxdp;
uint64_t qword1;
uint32_t rx_status;
uint32_t len, id;
uint32_t error;
int ret = 0;
rxdp = &rxq->rx_ring[rxq->rx_tail];
qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len);
rx_status = (qword1 & I40E_RXD_QW1_STATUS_MASK)
>> I40E_RXD_QW1_STATUS_SHIFT;
if (rx_status & (1 << I40E_RX_DESC_STATUS_DD_SHIFT)) {
len = qword1 >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT;
id = (qword1 & I40E_RX_PROG_STATUS_DESC_QW1_PROGID_MASK) >>
I40E_RX_PROG_STATUS_DESC_QW1_PROGID_SHIFT;
if (len == I40E_RX_PROG_STATUS_DESC_LENGTH &&
id == I40E_RX_PROG_STATUS_DESC_FD_FILTER_STATUS) {
error = (qword1 &
I40E_RX_PROG_STATUS_DESC_QW1_ERROR_MASK) >>
I40E_RX_PROG_STATUS_DESC_QW1_ERROR_SHIFT;
if (error == (0x1 <<
I40E_RX_PROG_STATUS_DESC_FD_TBL_FULL_SHIFT)) {
PMD_DRV_LOG(ERR, "Failed to add FDIR filter"
" (FD_ID %u): programming status"
" reported.",
rxdp->wb.qword0.hi_dword.fd_id);
ret = -1;
} else if (error == (0x1 <<
I40E_RX_PROG_STATUS_DESC_NO_FD_ENTRY_SHIFT)) {
PMD_DRV_LOG(ERR, "Failed to delete FDIR filter"
" (FD_ID %u): programming status"
" reported.",
rxdp->wb.qword0.hi_dword.fd_id);
ret = -1;
} else
PMD_DRV_LOG(ERR, "invalid programming status"
" reported, error = %u.", error);
} else
PMD_DRV_LOG(INFO, "unknown programming status"
" reported, len = %d, id = %u.", len, id);
rxdp->wb.qword1.status_error_len = 0;
rxq->rx_tail++;
if (unlikely(rxq->rx_tail == rxq->nb_rx_desc))
rxq->rx_tail = 0;
if (rxq->rx_tail == 0)
I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
else
I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_tail - 1);
}
return ret;
}
static int
i40e_fdir_filter_convert(const struct i40e_fdir_filter_conf *input,
struct i40e_fdir_filter *filter)
{
rte_memcpy(&filter->fdir, input, sizeof(struct i40e_fdir_filter_conf));
if (input->input.flow_ext.pkt_template) {
filter->fdir.input.flow.raw_flow.packet = NULL;
filter->fdir.input.flow.raw_flow.length =
rte_hash_crc(input->input.flow.raw_flow.packet,
input->input.flow.raw_flow.length,
input->input.flow.raw_flow.pctype);
}
return 0;
}
/* Check if there exists the flow director filter */
static struct i40e_fdir_filter *
i40e_sw_fdir_filter_lookup(struct i40e_fdir_info *fdir_info,
const struct i40e_fdir_input *input)
{
int ret;
if (input->flow_ext.pkt_template)
ret = rte_hash_lookup_with_hash(fdir_info->hash_table,
(const void *)input,
input->flow.raw_flow.length);
else
ret = rte_hash_lookup(fdir_info->hash_table,
(const void *)input);
if (ret < 0)
return NULL;
return fdir_info->hash_map[ret];
}
/* Add a flow director filter into the SW list */
static int
i40e_sw_fdir_filter_insert(struct i40e_pf *pf, struct i40e_fdir_filter *filter)
{
struct i40e_fdir_info *fdir_info = &pf->fdir;
int ret;
if (filter->fdir.input.flow_ext.pkt_template)
ret = rte_hash_add_key_with_hash(fdir_info->hash_table,
&filter->fdir.input,
filter->fdir.input.flow.raw_flow.length);
else
ret = rte_hash_add_key(fdir_info->hash_table,
&filter->fdir.input);
if (ret < 0) {
PMD_DRV_LOG(ERR,
"Failed to insert fdir filter to hash table %d!",
ret);
return ret;
}
fdir_info->hash_map[ret] = filter;
TAILQ_INSERT_TAIL(&fdir_info->fdir_list, filter, rules);
return 0;
}
/* Delete a flow director filter from the SW list */
int
i40e_sw_fdir_filter_del(struct i40e_pf *pf, struct i40e_fdir_input *input)
{
struct i40e_fdir_info *fdir_info = &pf->fdir;
struct i40e_fdir_filter *filter;
int ret;
if (input->flow_ext.pkt_template)
ret = rte_hash_del_key_with_hash(fdir_info->hash_table,
input,
input->flow.raw_flow.length);
else
ret = rte_hash_del_key(fdir_info->hash_table, input);
if (ret < 0) {
PMD_DRV_LOG(ERR,
"Failed to delete fdir filter to hash table %d!",
ret);
return ret;
}
filter = fdir_info->hash_map[ret];
fdir_info->hash_map[ret] = NULL;
TAILQ_REMOVE(&fdir_info->fdir_list, filter, rules);
rte_free(filter);
return 0;
}
/*
* i40e_add_del_fdir_filter - add or remove a flow director filter.
* @pf: board private structure
* @filter: fdir filter entry
* @add: 0 - delete, 1 - add
*/
int
i40e_add_del_fdir_filter(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *filter,
bool add)
{
struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
unsigned char *pkt = (unsigned char *)pf->fdir.prg_pkt;
enum i40e_filter_pctype pctype;
int ret = 0;
if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT) {
PMD_DRV_LOG(ERR, "FDIR is not enabled, please"
" check the mode in fdir_conf.");
return -ENOTSUP;
}
pctype = i40e_flowtype_to_pctype(pf->adapter, filter->input.flow_type);
if (pctype == I40E_FILTER_PCTYPE_INVALID) {
PMD_DRV_LOG(ERR, "invalid flow_type input.");
return -EINVAL;
}
if (filter->action.rx_queue >= pf->dev_data->nb_rx_queues) {
PMD_DRV_LOG(ERR, "Invalid queue ID");
return -EINVAL;
}
if (filter->input.flow_ext.is_vf &&
filter->input.flow_ext.dst_id >= pf->vf_num) {
PMD_DRV_LOG(ERR, "Invalid VF ID");
return -EINVAL;
}
memset(pkt, 0, I40E_FDIR_PKT_LEN);
ret = i40e_fdir_construct_pkt(pf, &filter->input, pkt);
if (ret < 0) {
PMD_DRV_LOG(ERR, "construct packet for fdir fails.");
return ret;
}
if (hw->mac.type == I40E_MAC_X722) {
/* get translated pctype value in fd pctype register */
pctype = (enum i40e_filter_pctype)i40e_read_rx_ctl(
hw, I40E_GLQF_FD_PCTYPES((int)pctype));
}
ret = i40e_fdir_filter_programming(pf, pctype, filter, add);
if (ret < 0) {
PMD_DRV_LOG(ERR, "fdir programming fails for PCTYPE(%u).",
pctype);
return ret;
}
return ret;
}
/**
* i40e_flow_add_del_fdir_filter - add or remove a flow director filter.
* @pf: board private structure
* @filter: fdir filter entry
* @add: 0 - delete, 1 - add
*/
int
i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
const struct i40e_fdir_filter_conf *filter,
bool add)
{
struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
unsigned char *pkt = (unsigned char *)pf->fdir.prg_pkt;
enum i40e_filter_pctype pctype;
struct i40e_fdir_info *fdir_info = &pf->fdir;
struct i40e_fdir_filter *fdir_filter, *node;
struct i40e_fdir_filter check_filter; /* Check if the filter exists */
int ret = 0;
if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT) {
PMD_DRV_LOG(ERR, "FDIR is not enabled, please check the mode in fdir_conf.");
return -ENOTSUP;
}
if (filter->action.rx_queue >= pf->dev_data->nb_rx_queues) {
PMD_DRV_LOG(ERR, "Invalid queue ID");
return -EINVAL;
}
if (filter->input.flow_ext.is_vf &&
filter->input.flow_ext.dst_id >= pf->vf_num) {
PMD_DRV_LOG(ERR, "Invalid VF ID");
return -EINVAL;
}
if (filter->input.flow_ext.pkt_template) {
if (filter->input.flow.raw_flow.length > I40E_FDIR_PKT_LEN ||
!filter->input.flow.raw_flow.packet) {
PMD_DRV_LOG(ERR, "Invalid raw packet template"
" flow filter parameters!");
return -EINVAL;
}
pctype = filter->input.flow.raw_flow.pctype;
} else {
pctype = filter->input.pctype;
}
/* Check if there is the filter in SW list */
memset(&check_filter, 0, sizeof(check_filter));
i40e_fdir_filter_convert(filter, &check_filter);
node = i40e_sw_fdir_filter_lookup(fdir_info, &check_filter.fdir.input);
if (add && node) {
PMD_DRV_LOG(ERR,
"Conflict with existing flow director rules!");
return -EINVAL;
}
if (!add && !node) {
PMD_DRV_LOG(ERR,
"There's no corresponding flow firector filter!");
return -EINVAL;
}
memset(pkt, 0, I40E_FDIR_PKT_LEN);
ret = i40e_flow_fdir_construct_pkt(pf, &filter->input, pkt);
if (ret < 0) {
PMD_DRV_LOG(ERR, "construct packet for fdir fails.");
return ret;
}
if (hw->mac.type == I40E_MAC_X722) {
/* get translated pctype value in fd pctype register */
pctype = (enum i40e_filter_pctype)i40e_read_rx_ctl(
hw, I40E_GLQF_FD_PCTYPES((int)pctype));
}
ret = i40e_flow_fdir_filter_programming(pf, pctype, filter, add);
if (ret < 0) {
PMD_DRV_LOG(ERR, "fdir programming fails for PCTYPE(%u).",
pctype);
return ret;
}
if (add) {
fdir_filter = rte_zmalloc("fdir_filter",
sizeof(*fdir_filter), 0);
if (fdir_filter == NULL) {
PMD_DRV_LOG(ERR, "Failed to alloc memory.");
return -ENOMEM;
}
rte_memcpy(fdir_filter, &check_filter, sizeof(check_filter));
ret = i40e_sw_fdir_filter_insert(pf, fdir_filter);
if (ret < 0)
rte_free(fdir_filter);
} else {
ret = i40e_sw_fdir_filter_del(pf, &node->fdir.input);
}
return ret;
}
/*
* i40e_fdir_filter_programming - Program a flow director filter rule.
* Is done by Flow Director Programming Descriptor followed by packet
* structure that contains the filter fields need to match.
* @pf: board private structure
* @pctype: pctype
* @filter: fdir filter entry
* @add: 0 - delete, 1 - add
*/
static int
i40e_fdir_filter_programming(struct i40e_pf *pf,
enum i40e_filter_pctype pctype,
const struct rte_eth_fdir_filter *filter,
bool add)
{
struct i40e_tx_queue *txq = pf->fdir.txq;
struct i40e_rx_queue *rxq = pf->fdir.rxq;
const struct rte_eth_fdir_action *fdir_action = &filter->action;
volatile struct i40e_tx_desc *txdp;
volatile struct i40e_filter_program_desc *fdirdp;
uint32_t td_cmd;
uint16_t vsi_id, i;
uint8_t dest;
PMD_DRV_LOG(INFO, "filling filter programming descriptor.");
fdirdp = (volatile struct i40e_filter_program_desc *)
(&(txq->tx_ring[txq->tx_tail]));
fdirdp->qindex_flex_ptype_vsi =
rte_cpu_to_le_32((fdir_action->rx_queue <<
I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
I40E_TXD_FLTR_QW0_QINDEX_MASK);
fdirdp->qindex_flex_ptype_vsi |=
rte_cpu_to_le_32((fdir_action->flex_off <<
I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT) &
I40E_TXD_FLTR_QW0_FLEXOFF_MASK);
fdirdp->qindex_flex_ptype_vsi |=
rte_cpu_to_le_32((pctype <<
I40E_TXD_FLTR_QW0_PCTYPE_SHIFT) &
I40E_TXD_FLTR_QW0_PCTYPE_MASK);
if (filter->input.flow_ext.is_vf)
vsi_id = pf->vfs[filter->input.flow_ext.dst_id].vsi->vsi_id;
else
/* Use LAN VSI Id by default */
vsi_id = pf->main_vsi->vsi_id;
fdirdp->qindex_flex_ptype_vsi |=
rte_cpu_to_le_32(((uint32_t)vsi_id <<
I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
fdirdp->dtype_cmd_cntindex =
rte_cpu_to_le_32(I40E_TX_DESC_DTYPE_FILTER_PROG);
if (add)
fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE <<
I40E_TXD_FLTR_QW1_PCMD_SHIFT);
else
fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE <<
I40E_TXD_FLTR_QW1_PCMD_SHIFT);
if (fdir_action->behavior == RTE_ETH_FDIR_REJECT)
dest = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
else if (fdir_action->behavior == RTE_ETH_FDIR_ACCEPT)
dest = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
else if (fdir_action->behavior == RTE_ETH_FDIR_PASSTHRU)
dest = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_OTHER;
else {
PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
" unsupported fdir behavior.");
return -EINVAL;
}
fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32((dest <<
I40E_TXD_FLTR_QW1_DEST_SHIFT) &
I40E_TXD_FLTR_QW1_DEST_MASK);
fdirdp->dtype_cmd_cntindex |=
rte_cpu_to_le_32((fdir_action->report_status<<
I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT) &
I40E_TXD_FLTR_QW1_FD_STATUS_MASK);
fdirdp->dtype_cmd_cntindex |=
rte_cpu_to_le_32(I40E_TXD_FLTR_QW1_CNT_ENA_MASK);
fdirdp->dtype_cmd_cntindex |=
rte_cpu_to_le_32(
((uint32_t)pf->fdir.match_counter_index <<
I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
fdirdp->fd_id = rte_cpu_to_le_32(filter->soft_id);
PMD_DRV_LOG(INFO, "filling transmit descriptor.");
txdp = &(txq->tx_ring[txq->tx_tail + 1]);
txdp->buffer_addr = rte_cpu_to_le_64(pf->fdir.dma_addr);
td_cmd = I40E_TX_DESC_CMD_EOP |
I40E_TX_DESC_CMD_RS |
I40E_TX_DESC_CMD_DUMMY;
txdp->cmd_type_offset_bsz =
i40e_build_ctob(td_cmd, 0, I40E_FDIR_PKT_LEN, 0);
txq->tx_tail += 2; /* set 2 descriptors above, fdirdp and txdp */
if (txq->tx_tail >= txq->nb_tx_desc)
txq->tx_tail = 0;
/* Update the tx tail register */
rte_wmb();
I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
for (i = 0; i < I40E_FDIR_MAX_WAIT_US; i++) {
if ((txdp->cmd_type_offset_bsz &
rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) ==
rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
break;
rte_delay_us(1);
}
if (i >= I40E_FDIR_MAX_WAIT_US) {
PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
" time out to get DD on tx queue.");
return -ETIMEDOUT;
}
/* totally delay 10 ms to check programming status*/
for (; i < I40E_FDIR_MAX_WAIT_US; i++) {
if (i40e_check_fdir_programming_status(rxq) >= 0)
return 0;
rte_delay_us(1);
}
PMD_DRV_LOG(ERR,
"Failed to program FDIR filter: programming status reported.");
return -ETIMEDOUT;
}
/*
* i40e_flow_fdir_filter_programming - Program a flow director filter rule.
* Is done by Flow Director Programming Descriptor followed by packet
* structure that contains the filter fields need to match.
* @pf: board private structure
* @pctype: pctype
* @filter: fdir filter entry
* @add: 0 - delete, 1 - add
*/
static int
i40e_flow_fdir_filter_programming(struct i40e_pf *pf,
enum i40e_filter_pctype pctype,
const struct i40e_fdir_filter_conf *filter,
bool add)
{
struct i40e_tx_queue *txq = pf->fdir.txq;
struct i40e_rx_queue *rxq = pf->fdir.rxq;
const struct i40e_fdir_action *fdir_action = &filter->action;
volatile struct i40e_tx_desc *txdp;
volatile struct i40e_filter_program_desc *fdirdp;
uint32_t td_cmd;
uint16_t vsi_id, i;
uint8_t dest;
PMD_DRV_LOG(INFO, "filling filter programming descriptor.");
fdirdp = (volatile struct i40e_filter_program_desc *)
(&txq->tx_ring[txq->tx_tail]);
fdirdp->qindex_flex_ptype_vsi =
rte_cpu_to_le_32((fdir_action->rx_queue <<
I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
I40E_TXD_FLTR_QW0_QINDEX_MASK);
fdirdp->qindex_flex_ptype_vsi |=
rte_cpu_to_le_32((fdir_action->flex_off <<
I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT) &
I40E_TXD_FLTR_QW0_FLEXOFF_MASK);
fdirdp->qindex_flex_ptype_vsi |=
rte_cpu_to_le_32((pctype <<
I40E_TXD_FLTR_QW0_PCTYPE_SHIFT) &
I40E_TXD_FLTR_QW0_PCTYPE_MASK);
if (filter->input.flow_ext.is_vf)
vsi_id = pf->vfs[filter->input.flow_ext.dst_id].vsi->vsi_id;
else
/* Use LAN VSI Id by default */
vsi_id = pf->main_vsi->vsi_id;
fdirdp->qindex_flex_ptype_vsi |=
rte_cpu_to_le_32(((uint32_t)vsi_id <<
I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
fdirdp->dtype_cmd_cntindex =
rte_cpu_to_le_32(I40E_TX_DESC_DTYPE_FILTER_PROG);
if (add)
fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE <<
I40E_TXD_FLTR_QW1_PCMD_SHIFT);
else
fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE <<
I40E_TXD_FLTR_QW1_PCMD_SHIFT);
if (fdir_action->behavior == I40E_FDIR_REJECT)
dest = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
else if (fdir_action->behavior == I40E_FDIR_ACCEPT)
dest = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
else if (fdir_action->behavior == I40E_FDIR_PASSTHRU)
dest = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_OTHER;
else {
PMD_DRV_LOG(ERR, "Failed to program FDIR filter: unsupported fdir behavior.");
return -EINVAL;
}
fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32((dest <<
I40E_TXD_FLTR_QW1_DEST_SHIFT) &
I40E_TXD_FLTR_QW1_DEST_MASK);
fdirdp->dtype_cmd_cntindex |=
rte_cpu_to_le_32((fdir_action->report_status <<
I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT) &
I40E_TXD_FLTR_QW1_FD_STATUS_MASK);
fdirdp->dtype_cmd_cntindex |=
rte_cpu_to_le_32(I40E_TXD_FLTR_QW1_CNT_ENA_MASK);
fdirdp->dtype_cmd_cntindex |=
rte_cpu_to_le_32(
((uint32_t)pf->fdir.match_counter_index <<
I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
fdirdp->fd_id = rte_cpu_to_le_32(filter->soft_id);
PMD_DRV_LOG(INFO, "filling transmit descriptor.");
txdp = &txq->tx_ring[txq->tx_tail + 1];
txdp->buffer_addr = rte_cpu_to_le_64(pf->fdir.dma_addr);
td_cmd = I40E_TX_DESC_CMD_EOP |
I40E_TX_DESC_CMD_RS |
I40E_TX_DESC_CMD_DUMMY;
txdp->cmd_type_offset_bsz =
i40e_build_ctob(td_cmd, 0, I40E_FDIR_PKT_LEN, 0);
txq->tx_tail += 2; /* set 2 descriptors above, fdirdp and txdp */
if (txq->tx_tail >= txq->nb_tx_desc)
txq->tx_tail = 0;
/* Update the tx tail register */
rte_wmb();
I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
for (i = 0; i < I40E_FDIR_MAX_WAIT_US; i++) {
if ((txdp->cmd_type_offset_bsz &
rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) ==
rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
break;
rte_delay_us(1);
}
if (i >= I40E_FDIR_MAX_WAIT_US) {
PMD_DRV_LOG(ERR,
"Failed to program FDIR filter: time out to get DD on tx queue.");
return -ETIMEDOUT;
}
/* totally delay 10 ms to check programming status*/
rte_delay_us(I40E_FDIR_MAX_WAIT_US);
if (i40e_check_fdir_programming_status(rxq) < 0) {
PMD_DRV_LOG(ERR,
"Failed to program FDIR filter: programming status reported.");
return -ETIMEDOUT;
}
return 0;
}
/*
* i40e_fdir_flush - clear all filters of Flow Director table
* @pf: board private structure
*/
int
i40e_fdir_flush(struct rte_eth_dev *dev)
{
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
uint32_t reg;
uint16_t guarant_cnt, best_cnt;
uint16_t i;
I40E_WRITE_REG(hw, I40E_PFQF_CTL_1, I40E_PFQF_CTL_1_CLEARFDTABLE_MASK);
I40E_WRITE_FLUSH(hw);
for (i = 0; i < I40E_FDIR_FLUSH_RETRY; i++) {
rte_delay_ms(I40E_FDIR_FLUSH_INTERVAL_MS);
reg = I40E_READ_REG(hw, I40E_PFQF_CTL_1);
if (!(reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK))
break;
}
if (i >= I40E_FDIR_FLUSH_RETRY) {
PMD_DRV_LOG(ERR, "FD table did not flush, may need more time.");
return -ETIMEDOUT;
}
guarant_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
best_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
if (guarant_cnt != 0 || best_cnt != 0) {
PMD_DRV_LOG(ERR, "Failed to flush FD table.");
return -ENOSYS;
} else
PMD_DRV_LOG(INFO, "FD table Flush success.");
return 0;
}
static inline void
i40e_fdir_info_get_flex_set(struct i40e_pf *pf,
struct rte_eth_flex_payload_cfg *flex_set,
uint16_t *num)
{
struct i40e_fdir_flex_pit *flex_pit;
struct rte_eth_flex_payload_cfg *ptr = flex_set;
uint16_t src, dst, size, j, k;
uint8_t i, layer_idx;
for (layer_idx = I40E_FLXPLD_L2_IDX;
layer_idx <= I40E_FLXPLD_L4_IDX;
layer_idx++) {
if (layer_idx == I40E_FLXPLD_L2_IDX)
ptr->type = RTE_ETH_L2_PAYLOAD;
else if (layer_idx == I40E_FLXPLD_L3_IDX)
ptr->type = RTE_ETH_L3_PAYLOAD;
else if (layer_idx == I40E_FLXPLD_L4_IDX)
ptr->type = RTE_ETH_L4_PAYLOAD;
for (i = 0; i < I40E_MAX_FLXPLD_FIED; i++) {
flex_pit = &pf->fdir.flex_set[layer_idx *
I40E_MAX_FLXPLD_FIED + i];
if (flex_pit->size == 0)
continue;
src = flex_pit->src_offset * sizeof(uint16_t);
dst = flex_pit->dst_offset * sizeof(uint16_t);
size = flex_pit->size * sizeof(uint16_t);
for (j = src, k = dst; j < src + size; j++, k++)
ptr->src_offset[k] = j;
}
(*num)++;
ptr++;
}
}
static inline void
i40e_fdir_info_get_flex_mask(struct i40e_pf *pf,
struct rte_eth_fdir_flex_mask *flex_mask,
uint16_t *num)
{
struct i40e_fdir_flex_mask *mask;
struct rte_eth_fdir_flex_mask *ptr = flex_mask;
uint16_t flow_type;
uint8_t i, j;
uint16_t off_bytes, mask_tmp;
for (i = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
i <= I40E_FILTER_PCTYPE_L2_PAYLOAD;
i++) {
mask = &pf->fdir.flex_mask[i];
flow_type = i40e_pctype_to_flowtype(pf->adapter,
(enum i40e_filter_pctype)i);
if (flow_type == RTE_ETH_FLOW_UNKNOWN)
continue;
for (j = 0; j < I40E_FDIR_MAX_FLEXWORD_NUM; j++) {
if (mask->word_mask & I40E_FLEX_WORD_MASK(j)) {
ptr->mask[j * sizeof(uint16_t)] = UINT8_MAX;
ptr->mask[j * sizeof(uint16_t) + 1] = UINT8_MAX;
} else {
ptr->mask[j * sizeof(uint16_t)] = 0x0;
ptr->mask[j * sizeof(uint16_t) + 1] = 0x0;
}
}
for (j = 0; j < I40E_FDIR_BITMASK_NUM_WORD; j++) {
off_bytes = mask->bitmask[j].offset * sizeof(uint16_t);
mask_tmp = ~mask->bitmask[j].mask;
ptr->mask[off_bytes] &= I40E_HI_BYTE(mask_tmp);
ptr->mask[off_bytes + 1] &= I40E_LO_BYTE(mask_tmp);
}
ptr->flow_type = flow_type;
ptr++;
(*num)++;
}
}
/*
* i40e_fdir_info_get - get information of Flow Director
* @pf: ethernet device to get info from
* @fdir: a pointer to a structure of type *rte_eth_fdir_info* to be filled with
* the flow director information.
*/
static void
i40e_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir)
{
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
uint16_t num_flex_set = 0;
uint16_t num_flex_mask = 0;
uint16_t i;
if (dev->data->dev_conf.fdir_conf.mode == RTE_FDIR_MODE_PERFECT)
fdir->mode = RTE_FDIR_MODE_PERFECT;
else
fdir->mode = RTE_FDIR_MODE_NONE;
fdir->guarant_spc =
(uint32_t)hw->func_caps.fd_filters_guaranteed;
fdir->best_spc =
(uint32_t)hw->func_caps.fd_filters_best_effort;
fdir->max_flexpayload = I40E_FDIR_MAX_FLEX_LEN;
fdir->flow_types_mask[0] = I40E_FDIR_FLOWS;
for (i = 1; i < RTE_FLOW_MASK_ARRAY_SIZE; i++)
fdir->flow_types_mask[i] = 0ULL;
fdir->flex_payload_unit = sizeof(uint16_t);
fdir->flex_bitmask_unit = sizeof(uint16_t);
fdir->max_flex_payload_segment_num = I40E_MAX_FLXPLD_FIED;
fdir->flex_payload_limit = I40E_MAX_FLX_SOURCE_OFF;
fdir->max_flex_bitmask_num = I40E_FDIR_BITMASK_NUM_WORD;
i40e_fdir_info_get_flex_set(pf,
fdir->flex_conf.flex_set,
&num_flex_set);
i40e_fdir_info_get_flex_mask(pf,
fdir->flex_conf.flex_mask,
&num_flex_mask);
fdir->flex_conf.nb_payloads = num_flex_set;
fdir->flex_conf.nb_flexmasks = num_flex_mask;
}
/*
* i40e_fdir_stat_get - get statistics of Flow Director
* @pf: ethernet device to get info from
* @stat: a pointer to a structure of type *rte_eth_fdir_stats* to be filled with
* the flow director statistics.
*/
static void
i40e_fdir_stats_get(struct rte_eth_dev *dev, struct rte_eth_fdir_stats *stat)
{
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
uint32_t fdstat;
fdstat = I40E_READ_REG(hw, I40E_PFQF_FDSTAT);
stat->guarant_cnt =
(uint32_t)((fdstat & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
stat->best_cnt =
(uint32_t)((fdstat & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
}
static int
i40e_fdir_filter_set(struct rte_eth_dev *dev,
struct rte_eth_fdir_filter_info *info)
{
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
int ret = 0;
if (!info) {
PMD_DRV_LOG(ERR, "Invalid pointer");
return -EFAULT;
}
switch (info->info_type) {
case RTE_ETH_FDIR_FILTER_INPUT_SET_SELECT:
ret = i40e_fdir_filter_inset_select(pf,
&(info->info.input_set_conf));
break;
default:
PMD_DRV_LOG(ERR, "FD filter info type (%d) not supported",
info->info_type);
return -EINVAL;
}
return ret;
}
/*
* i40e_fdir_ctrl_func - deal with all operations on flow director.
* @pf: board private structure
* @filter_op:operation will be taken.
* @arg: a pointer to specific structure corresponding to the filter_op
*/
int
i40e_fdir_ctrl_func(struct rte_eth_dev *dev,
enum rte_filter_op filter_op,
void *arg)
{
struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
int ret = 0;
if ((pf->flags & I40E_FLAG_FDIR) == 0)
return -ENOTSUP;
if (filter_op == RTE_ETH_FILTER_NOP)
return 0;
if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
return -EINVAL;
switch (filter_op) {
case RTE_ETH_FILTER_ADD:
ret = i40e_add_del_fdir_filter(dev,
(struct rte_eth_fdir_filter *)arg,
TRUE);
break;
case RTE_ETH_FILTER_DELETE:
ret = i40e_add_del_fdir_filter(dev,
(struct rte_eth_fdir_filter *)arg,
FALSE);
break;
case RTE_ETH_FILTER_FLUSH:
ret = i40e_fdir_flush(dev);
break;
case RTE_ETH_FILTER_INFO:
i40e_fdir_info_get(dev, (struct rte_eth_fdir_info *)arg);
break;
case RTE_ETH_FILTER_SET:
ret = i40e_fdir_filter_set(dev,
(struct rte_eth_fdir_filter_info *)arg);
break;
case RTE_ETH_FILTER_STATS:
i40e_fdir_stats_get(dev, (struct rte_eth_fdir_stats *)arg);
break;
default:
PMD_DRV_LOG(ERR, "unknown operation %u.", filter_op);
ret = -EINVAL;
break;
}
return ret;
}
/* Restore flow director filter */
void
i40e_fdir_filter_restore(struct i40e_pf *pf)
{
struct rte_eth_dev *dev = I40E_VSI_TO_ETH_DEV(pf->main_vsi);
struct i40e_fdir_filter_list *fdir_list = &pf->fdir.fdir_list;
struct i40e_fdir_filter *f;
struct i40e_hw *hw = I40E_PF_TO_HW(pf);
uint32_t fdstat;
uint32_t guarant_cnt; /**< Number of filters in guaranteed spaces. */
uint32_t best_cnt; /**< Number of filters in best effort spaces. */
TAILQ_FOREACH(f, fdir_list, rules)
i40e_flow_add_del_fdir_filter(dev, &f->fdir, TRUE);
fdstat = I40E_READ_REG(hw, I40E_PFQF_FDSTAT);
guarant_cnt =
(uint32_t)((fdstat & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
best_cnt =
(uint32_t)((fdstat & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
PMD_DRV_LOG(INFO, "FDIR: Guarant count: %d, Best count: %d",
guarant_cnt, best_cnt);
}
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