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a7740dc130
numam-dpdk/drivers/net/ixgbe/ixgbe_fdir.c
Wenzhuo Lu a7740dc130 ixgbe: support new devices and MAC types 
Add the support for new devices and mac types, as supported by the base
code update.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-03-16 17:09:27 +01:00

1377 lines
44 KiB
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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdarg.h>
#include <errno.h>
#include <sys/queue.h>
#include <rte_interrupts.h>
#include <rte_log.h>
#include <rte_debug.h>
#include <rte_pci.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include "ixgbe_logs.h"
#include "base/ixgbe_api.h"
#include "base/ixgbe_common.h"
#include "ixgbe_ethdev.h"
/* To get PBALLOC (Packet Buffer Allocation) bits from FDIRCTRL value */
#define FDIRCTRL_PBALLOC_MASK 0x03
/* For calculating memory required for FDIR filters */
#define PBALLOC_SIZE_SHIFT 15
/* Number of bits used to mask bucket hash for different pballoc sizes */
#define PERFECT_BUCKET_64KB_HASH_MASK 0x07FF /* 11 bits */
#define PERFECT_BUCKET_128KB_HASH_MASK 0x0FFF /* 12 bits */
#define PERFECT_BUCKET_256KB_HASH_MASK 0x1FFF /* 13 bits */
#define SIG_BUCKET_64KB_HASH_MASK 0x1FFF /* 13 bits */
#define SIG_BUCKET_128KB_HASH_MASK 0x3FFF /* 14 bits */
#define SIG_BUCKET_256KB_HASH_MASK 0x7FFF /* 15 bits */
#define IXGBE_DEFAULT_FLEXBYTES_OFFSET 12 /* default flexbytes offset in bytes */
#define IXGBE_FDIR_MAX_FLEX_LEN 2 /* len in bytes of flexbytes */
#define IXGBE_MAX_FLX_SOURCE_OFF 62
#define IXGBE_FDIRCTRL_FLEX_MASK (0x1F << IXGBE_FDIRCTRL_FLEX_SHIFT)
#define IXGBE_FDIRCMD_CMD_INTERVAL_US 10
#define IXGBE_FDIR_FLOW_TYPES ( \
(1 << RTE_ETH_FLOW_NONFRAG_IPV4_UDP) | \
(1 << RTE_ETH_FLOW_NONFRAG_IPV4_TCP) | \
(1 << RTE_ETH_FLOW_NONFRAG_IPV4_SCTP) | \
(1 << RTE_ETH_FLOW_NONFRAG_IPV4_OTHER) | \
(1 << RTE_ETH_FLOW_NONFRAG_IPV6_UDP) | \
(1 << RTE_ETH_FLOW_NONFRAG_IPV6_TCP) | \
(1 << RTE_ETH_FLOW_NONFRAG_IPV6_SCTP) | \
(1 << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER))
#define IPV6_ADDR_TO_MASK(ipaddr, ipv6m) do { \
uint8_t ipv6_addr[16]; \
uint8_t i; \
rte_memcpy(ipv6_addr, (ipaddr), sizeof(ipv6_addr));\
(ipv6m) = 0; \
for (i = 0; i < sizeof(ipv6_addr); i++) { \
if (ipv6_addr[i] == UINT8_MAX) \
(ipv6m) |= 1 << i; \
else if (ipv6_addr[i] != 0) { \
PMD_DRV_LOG(ERR, " invalid IPv6 address mask."); \
return -EINVAL; \
} \
} \
} while (0)
#define IPV6_MASK_TO_ADDR(ipv6m, ipaddr) do { \
uint8_t ipv6_addr[16]; \
uint8_t i; \
for (i = 0; i < sizeof(ipv6_addr); i++) { \
if ((ipv6m) & (1 << i)) \
ipv6_addr[i] = UINT8_MAX; \
else \
ipv6_addr[i] = 0; \
} \
rte_memcpy((ipaddr), ipv6_addr, sizeof(ipv6_addr));\
} while (0)
#define DEFAULT_VXLAN_PORT 4789
#define IXGBE_FDIRIP6M_INNER_MAC_SHIFT 4
static int fdir_erase_filter_82599(struct ixgbe_hw *hw, uint32_t fdirhash);
static int fdir_set_input_mask(struct rte_eth_dev *dev,
const struct rte_eth_fdir_masks *input_mask);
static int fdir_set_input_mask_82599(struct rte_eth_dev *dev,
const struct rte_eth_fdir_masks *input_mask);
static int fdir_set_input_mask_x550(struct rte_eth_dev *dev,
const struct rte_eth_fdir_masks *input_mask);
static int ixgbe_set_fdir_flex_conf(struct rte_eth_dev *dev,
const struct rte_eth_fdir_flex_conf *conf, uint32_t *fdirctrl);
static int fdir_enable_82599(struct ixgbe_hw *hw, uint32_t fdirctrl);
static int ixgbe_fdir_filter_to_atr_input(
const struct rte_eth_fdir_filter *fdir_filter,
union ixgbe_atr_input *input,
enum rte_fdir_mode mode);
static uint32_t ixgbe_atr_compute_hash_82599(union ixgbe_atr_input *atr_input,
uint32_t key);
static uint32_t atr_compute_sig_hash_82599(union ixgbe_atr_input *input,
enum rte_fdir_pballoc_type pballoc);
static uint32_t atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
enum rte_fdir_pballoc_type pballoc);
static int fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
union ixgbe_atr_input *input, uint8_t queue,
uint32_t fdircmd, uint32_t fdirhash,
enum rte_fdir_mode mode);
static int fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
union ixgbe_atr_input *input, u8 queue, uint32_t fdircmd,
uint32_t fdirhash);
static int ixgbe_add_del_fdir_filter(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter,
bool del,
bool update);
static int ixgbe_fdir_flush(struct rte_eth_dev *dev);
static void ixgbe_fdir_info_get(struct rte_eth_dev *dev,
struct rte_eth_fdir_info *fdir_info);
static void ixgbe_fdir_stats_get(struct rte_eth_dev *dev,
struct rte_eth_fdir_stats *fdir_stats);
/**
* This function is based on ixgbe_fdir_enable_82599() in base/ixgbe_82599.c.
* It adds extra configuration of fdirctrl that is common for all filter types.
*
* Initialize Flow Director control registers
* @hw: pointer to hardware structure
* @fdirctrl: value to write to flow director control register
**/
static int
fdir_enable_82599(struct ixgbe_hw *hw, uint32_t fdirctrl)
{
int i;
PMD_INIT_FUNC_TRACE();
/* Prime the keys for hashing */
IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
/*
* Continue setup of fdirctrl register bits:
* Set the maximum length per hash bucket to 0xA filters
* Send interrupt when 64 filters are left
*/
fdirctrl |= (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
(4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
/*
* Poll init-done after we write the register. Estimated times:
* 10G: PBALLOC = 11b, timing is 60us
* 1G: PBALLOC = 11b, timing is 600us
* 100M: PBALLOC = 11b, timing is 6ms
*
* Multiple these timings by 4 if under full Rx load
*
* So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
* 1 msec per poll time. If we're at line rate and drop to 100M, then
* this might not finish in our poll time, but we can live with that
* for now.
*/
IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
IXGBE_WRITE_FLUSH(hw);
for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
IXGBE_FDIRCTRL_INIT_DONE)
break;
msec_delay(1);
}
if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
PMD_INIT_LOG(ERR, "Flow Director poll time exceeded "
"during enabling!");
return -ETIMEDOUT;
}
return 0;
}
/*
* Set appropriate bits in fdirctrl for: variable reporting levels, moving
* flexbytes matching field, and drop queue (only for perfect matching mode).
*/
static inline int
configure_fdir_flags(const struct rte_fdir_conf *conf, uint32_t *fdirctrl)
{
*fdirctrl = 0;
switch (conf->pballoc) {
case RTE_FDIR_PBALLOC_64K:
/* 8k - 1 signature filters */
*fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K;
break;
case RTE_FDIR_PBALLOC_128K:
/* 16k - 1 signature filters */
*fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K;
break;
case RTE_FDIR_PBALLOC_256K:
/* 32k - 1 signature filters */
*fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K;
break;
default:
/* bad value */
PMD_INIT_LOG(ERR, "Invalid fdir_conf->pballoc value");
return -EINVAL;
};
/* status flags: write hash & swindex in the rx descriptor */
switch (conf->status) {
case RTE_FDIR_NO_REPORT_STATUS:
/* do nothing, default mode */
break;
case RTE_FDIR_REPORT_STATUS:
/* report status when the packet matches a fdir rule */
*fdirctrl |= IXGBE_FDIRCTRL_REPORT_STATUS;
break;
case RTE_FDIR_REPORT_STATUS_ALWAYS:
/* always report status */
*fdirctrl |= IXGBE_FDIRCTRL_REPORT_STATUS_ALWAYS;
break;
default:
/* bad value */
PMD_INIT_LOG(ERR, "Invalid fdir_conf->status value");
return -EINVAL;
};
*fdirctrl |= (IXGBE_DEFAULT_FLEXBYTES_OFFSET / sizeof(uint16_t)) <<
IXGBE_FDIRCTRL_FLEX_SHIFT;
if (conf->mode >= RTE_FDIR_MODE_PERFECT &&
conf->mode <= RTE_FDIR_MODE_PERFECT_TUNNEL) {
*fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH;
*fdirctrl |= (conf->drop_queue << IXGBE_FDIRCTRL_DROP_Q_SHIFT);
if (conf->mode == RTE_FDIR_MODE_PERFECT_MAC_VLAN)
*fdirctrl |= (IXGBE_FDIRCTRL_FILTERMODE_MACVLAN
<< IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
else if (conf->mode == RTE_FDIR_MODE_PERFECT_TUNNEL)
*fdirctrl |= (IXGBE_FDIRCTRL_FILTERMODE_CLOUD
<< IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
}
return 0;
}
/**
* Reverse the bits in FDIR registers that store 2 x 16 bit masks.
*
* @hi_dword: Bits 31:16 mask to be bit swapped.
* @lo_dword: Bits 15:0 mask to be bit swapped.
*
* Flow director uses several registers to store 2 x 16 bit masks with the
* bits reversed such as FDIRTCPM, FDIRUDPM. The LS bit of the
* mask affects the MS bit/byte of the target. This function reverses the
* bits in these masks.
* **/
static inline uint32_t
reverse_fdir_bitmasks(uint16_t hi_dword, uint16_t lo_dword)
{
uint32_t mask = hi_dword << 16;
mask |= lo_dword;
mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
}
/*
* This references ixgbe_fdir_set_input_mask_82599() in base/ixgbe_82599.c,
* but makes use of the rte_fdir_masks structure to see which bits to set.
*/
static int
fdir_set_input_mask_82599(struct rte_eth_dev *dev,
const struct rte_eth_fdir_masks *input_mask)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct ixgbe_hw_fdir_info *info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
/*
* mask VM pool and DIPv6 since there are currently not supported
* mask FLEX byte, it will be set in flex_conf
*/
uint32_t fdirm = IXGBE_FDIRM_POOL | IXGBE_FDIRM_DIPv6 | IXGBE_FDIRM_FLEX;
uint32_t fdirtcpm; /* TCP source and destination port masks. */
uint32_t fdiripv6m; /* IPv6 source and destination masks. */
uint16_t dst_ipv6m = 0;
uint16_t src_ipv6m = 0;
volatile uint32_t *reg;
PMD_INIT_FUNC_TRACE();
/*
* Program the relevant mask registers. If src/dst_port or src/dst_addr
* are zero, then assume a full mask for that field. Also assume that
* a VLAN of 0 is unspecified, so mask that out as well. L4type
* cannot be masked out in this implementation.
*/
if (input_mask->dst_port_mask == 0 && input_mask->src_port_mask == 0)
/* use the L4 protocol mask for raw IPv4/IPv6 traffic */
fdirm |= IXGBE_FDIRM_L4P;
if (input_mask->vlan_tci_mask == rte_cpu_to_be_16(0x0FFF))
/* mask VLAN Priority */
fdirm |= IXGBE_FDIRM_VLANP;
else if (input_mask->vlan_tci_mask == rte_cpu_to_be_16(0xE000))
/* mask VLAN ID */
fdirm |= IXGBE_FDIRM_VLANID;
else if (input_mask->vlan_tci_mask == 0)
/* mask VLAN ID and Priority */
fdirm |= IXGBE_FDIRM_VLANID | IXGBE_FDIRM_VLANP;
else if (input_mask->vlan_tci_mask != rte_cpu_to_be_16(0xEFFF)) {
PMD_INIT_LOG(ERR, "invalid vlan_tci_mask");
return -EINVAL;
}
info->mask.vlan_tci_mask = input_mask->vlan_tci_mask;
IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
/* store the TCP/UDP port masks, bit reversed from port layout */
fdirtcpm = reverse_fdir_bitmasks(
rte_be_to_cpu_16(input_mask->dst_port_mask),
rte_be_to_cpu_16(input_mask->src_port_mask));
/* write all the same so that UDP, TCP and SCTP use the same mask
* (little-endian)
*/
IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
info->mask.src_port_mask = input_mask->src_port_mask;
info->mask.dst_port_mask = input_mask->dst_port_mask;
/* Store source and destination IPv4 masks (big-endian),
* can not use IXGBE_WRITE_REG.
*/
reg = IXGBE_PCI_REG_ADDR(hw, IXGBE_FDIRSIP4M);
*reg = ~(input_mask->ipv4_mask.src_ip);
reg = IXGBE_PCI_REG_ADDR(hw, IXGBE_FDIRDIP4M);
*reg = ~(input_mask->ipv4_mask.dst_ip);
info->mask.src_ipv4_mask = input_mask->ipv4_mask.src_ip;
info->mask.dst_ipv4_mask = input_mask->ipv4_mask.dst_ip;
if (dev->data->dev_conf.fdir_conf.mode == RTE_FDIR_MODE_SIGNATURE) {
/*
* Store source and destination IPv6 masks (bit reversed)
*/
IPV6_ADDR_TO_MASK(input_mask->ipv6_mask.src_ip, src_ipv6m);
IPV6_ADDR_TO_MASK(input_mask->ipv6_mask.dst_ip, dst_ipv6m);
fdiripv6m = (dst_ipv6m << 16) | src_ipv6m;
IXGBE_WRITE_REG(hw, IXGBE_FDIRIP6M, ~fdiripv6m);
info->mask.src_ipv6_mask = src_ipv6m;
info->mask.dst_ipv6_mask = dst_ipv6m;
}
return IXGBE_SUCCESS;
}
/*
* This references ixgbe_fdir_set_input_mask_82599() in base/ixgbe_82599.c,
* but makes use of the rte_fdir_masks structure to see which bits to set.
*/
static int
fdir_set_input_mask_x550(struct rte_eth_dev *dev,
const struct rte_eth_fdir_masks *input_mask)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct ixgbe_hw_fdir_info *info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
/* mask VM pool and DIPv6 since there are currently not supported
* mask FLEX byte, it will be set in flex_conf
*/
uint32_t fdirm = IXGBE_FDIRM_POOL | IXGBE_FDIRM_DIPv6 |
IXGBE_FDIRM_FLEX;
uint32_t fdiripv6m;
enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
uint16_t mac_mask;
PMD_INIT_FUNC_TRACE();
/* set the default UDP port for VxLAN */
if (mode == RTE_FDIR_MODE_PERFECT_TUNNEL)
IXGBE_WRITE_REG(hw, IXGBE_VXLANCTRL, DEFAULT_VXLAN_PORT);
/* some bits must be set for mac vlan or tunnel mode */
fdirm |= IXGBE_FDIRM_L4P | IXGBE_FDIRM_L3P;
if (input_mask->vlan_tci_mask == rte_cpu_to_be_16(0x0FFF))
/* mask VLAN Priority */
fdirm |= IXGBE_FDIRM_VLANP;
else if (input_mask->vlan_tci_mask == rte_cpu_to_be_16(0xE000))
/* mask VLAN ID */
fdirm |= IXGBE_FDIRM_VLANID;
else if (input_mask->vlan_tci_mask == 0)
/* mask VLAN ID and Priority */
fdirm |= IXGBE_FDIRM_VLANID | IXGBE_FDIRM_VLANP;
else if (input_mask->vlan_tci_mask != rte_cpu_to_be_16(0xEFFF)) {
PMD_INIT_LOG(ERR, "invalid vlan_tci_mask");
return -EINVAL;
}
info->mask.vlan_tci_mask = input_mask->vlan_tci_mask;
IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
fdiripv6m = ((u32)0xFFFFU << IXGBE_FDIRIP6M_DIPM_SHIFT);
fdiripv6m |= IXGBE_FDIRIP6M_ALWAYS_MASK;
if (mode == RTE_FDIR_MODE_PERFECT_MAC_VLAN)
fdiripv6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE |
IXGBE_FDIRIP6M_TNI_VNI;
mac_mask = input_mask->mac_addr_byte_mask;
fdiripv6m |= (mac_mask << IXGBE_FDIRIP6M_INNER_MAC_SHIFT)
& IXGBE_FDIRIP6M_INNER_MAC;
info->mask.mac_addr_byte_mask = input_mask->mac_addr_byte_mask;
if (mode == RTE_FDIR_MODE_PERFECT_TUNNEL) {
switch (input_mask->tunnel_type_mask) {
case 0:
/* Mask turnnel type */
fdiripv6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE;
break;
case 1:
break;
default:
PMD_INIT_LOG(ERR, "invalid tunnel_type_mask");
return -EINVAL;
}
info->mask.tunnel_type_mask =
input_mask->tunnel_type_mask;
switch (rte_be_to_cpu_32(input_mask->tunnel_id_mask)) {
case 0x0:
/* Mask vxlan id */
fdiripv6m |= IXGBE_FDIRIP6M_TNI_VNI;
break;
case 0x00FFFFFF:
fdiripv6m |= IXGBE_FDIRIP6M_TNI_VNI_24;
break;
case 0xFFFFFFFF:
break;
default:
PMD_INIT_LOG(ERR, "invalid tunnel_id_mask");
return -EINVAL;
}
info->mask.tunnel_id_mask =
input_mask->tunnel_id_mask;
}
IXGBE_WRITE_REG(hw, IXGBE_FDIRIP6M, fdiripv6m);
IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, 0xFFFFFFFF);
IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, 0xFFFFFFFF);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, 0xFFFFFFFF);
IXGBE_WRITE_REG(hw, IXGBE_FDIRDIP4M, 0xFFFFFFFF);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIP4M, 0xFFFFFFFF);
return IXGBE_SUCCESS;
}
static int
fdir_set_input_mask(struct rte_eth_dev *dev,
const struct rte_eth_fdir_masks *input_mask)
{
enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
if (mode >= RTE_FDIR_MODE_SIGNATURE &&
mode <= RTE_FDIR_MODE_PERFECT)
return fdir_set_input_mask_82599(dev, input_mask);
else if (mode >= RTE_FDIR_MODE_PERFECT_MAC_VLAN &&
mode <= RTE_FDIR_MODE_PERFECT_TUNNEL)
return fdir_set_input_mask_x550(dev, input_mask);
PMD_DRV_LOG(ERR, "Not supported fdir mode - %d!", mode);
return -ENOTSUP;
}
/*
* ixgbe_check_fdir_flex_conf -check if the flex payload and mask configuration
* arguments are valid
*/
static int
ixgbe_set_fdir_flex_conf(struct rte_eth_dev *dev,
const struct rte_eth_fdir_flex_conf *conf, uint32_t *fdirctrl)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct ixgbe_hw_fdir_info *info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
const struct rte_eth_flex_payload_cfg *flex_cfg;
const struct rte_eth_fdir_flex_mask *flex_mask;
uint32_t fdirm;
uint16_t flexbytes = 0;
uint16_t i;
fdirm = IXGBE_READ_REG(hw, IXGBE_FDIRM);
if (conf == NULL) {
PMD_DRV_LOG(ERR, "NULL pointer.");
return -EINVAL;
}
for (i = 0; i < conf->nb_payloads; i++) {
flex_cfg = &conf->flex_set[i];
if (flex_cfg->type != RTE_ETH_RAW_PAYLOAD) {
PMD_DRV_LOG(ERR, "unsupported payload type.");
return -EINVAL;
}
if (((flex_cfg->src_offset[0] & 0x1) == 0) &&
(flex_cfg->src_offset[1] == flex_cfg->src_offset[0] + 1) &&
(flex_cfg->src_offset[0] <= IXGBE_MAX_FLX_SOURCE_OFF)) {
*fdirctrl &= ~IXGBE_FDIRCTRL_FLEX_MASK;
*fdirctrl |=
(flex_cfg->src_offset[0] / sizeof(uint16_t)) <<
IXGBE_FDIRCTRL_FLEX_SHIFT;
} else {
PMD_DRV_LOG(ERR, "invalid flexbytes arguments.");
return -EINVAL;
}
}
for (i = 0; i < conf->nb_flexmasks; i++) {
flex_mask = &conf->flex_mask[i];
if (flex_mask->flow_type != RTE_ETH_FLOW_UNKNOWN) {
PMD_DRV_LOG(ERR, "flexmask should be set globally.");
return -EINVAL;
}
flexbytes = (uint16_t)(((flex_mask->mask[0] << 8) & 0xFF00) |
((flex_mask->mask[1]) & 0xFF));
if (flexbytes == UINT16_MAX)
fdirm &= ~IXGBE_FDIRM_FLEX;
else if (flexbytes != 0) {
/* IXGBE_FDIRM_FLEX is set by default when set mask */
PMD_DRV_LOG(ERR, " invalid flexbytes mask arguments.");
return -EINVAL;
}
}
IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
info->mask.flex_bytes_mask = flexbytes ? UINT16_MAX : 0;
info->flex_bytes_offset = (uint8_t)((*fdirctrl &
IXGBE_FDIRCTRL_FLEX_MASK) >>
IXGBE_FDIRCTRL_FLEX_SHIFT);
return 0;
}
int
ixgbe_fdir_configure(struct rte_eth_dev *dev)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
int err;
uint32_t fdirctrl, pbsize;
int i;
enum rte_fdir_mode mode = dev->data->dev_conf.fdir_conf.mode;
PMD_INIT_FUNC_TRACE();
if (hw->mac.type != ixgbe_mac_82599EB &&
hw->mac.type != ixgbe_mac_X540 &&
hw->mac.type != ixgbe_mac_X550 &&
hw->mac.type != ixgbe_mac_X550EM_x &&
hw->mac.type != ixgbe_mac_X550EM_a)
return -ENOSYS;
/* x550 supports mac-vlan and tunnel mode but other NICs not */
if (hw->mac.type != ixgbe_mac_X550 &&
hw->mac.type != ixgbe_mac_X550EM_x &&
hw->mac.type != ixgbe_mac_X550EM_a &&
mode != RTE_FDIR_MODE_SIGNATURE &&
mode != RTE_FDIR_MODE_PERFECT)
return -ENOSYS;
err = configure_fdir_flags(&dev->data->dev_conf.fdir_conf, &fdirctrl);
if (err)
return err;
/*
* Before enabling Flow Director, the Rx Packet Buffer size
* must be reduced. The new value is the current size minus
* flow director memory usage size.
*/
pbsize = (1 << (PBALLOC_SIZE_SHIFT + (fdirctrl & FDIRCTRL_PBALLOC_MASK)));
IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0),
(IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize));
/*
* The defaults in the HW for RX PB 1-7 are not zero and so should be
* intialized to zero for non DCB mode otherwise actual total RX PB
* would be bigger than programmed and filter space would run into
* the PB 0 region.
*/
for (i = 1; i < 8; i++)
IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
err = fdir_set_input_mask(dev, &dev->data->dev_conf.fdir_conf.mask);
if (err < 0) {
PMD_INIT_LOG(ERR, " Error on setting FD mask");
return err;
}
err = ixgbe_set_fdir_flex_conf(dev,
&dev->data->dev_conf.fdir_conf.flex_conf, &fdirctrl);
if (err < 0) {
PMD_INIT_LOG(ERR, " Error on setting FD flexible arguments.");
return err;
}
err = fdir_enable_82599(hw, fdirctrl);
if (err < 0) {
PMD_INIT_LOG(ERR, " Error on enabling FD.");
return err;
}
return 0;
}
/*
* Convert DPDK rte_eth_fdir_filter struct to ixgbe_atr_input union that is used
* by the IXGBE driver code.
*/
static int
ixgbe_fdir_filter_to_atr_input(const struct rte_eth_fdir_filter *fdir_filter,
union ixgbe_atr_input *input, enum rte_fdir_mode mode)
{
input->formatted.vlan_id = fdir_filter->input.flow_ext.vlan_tci;
input->formatted.flex_bytes = (uint16_t)(
(fdir_filter->input.flow_ext.flexbytes[1] << 8 & 0xFF00) |
(fdir_filter->input.flow_ext.flexbytes[0] & 0xFF));
switch (fdir_filter->input.flow_type) {
case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_UDPV4;
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4;
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_SCTP:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV4;
break;
case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_UDPV6;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV6;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_SCTP:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_SCTPV6;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
input->formatted.flow_type = IXGBE_ATR_FLOW_TYPE_IPV6;
break;
default:
break;
}
switch (fdir_filter->input.flow_type) {
case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
input->formatted.src_port =
fdir_filter->input.flow.udp4_flow.src_port;
input->formatted.dst_port =
fdir_filter->input.flow.udp4_flow.dst_port;
/*for SCTP flow type, port and verify_tag are meaningless in ixgbe.*/
case RTE_ETH_FLOW_NONFRAG_IPV4_SCTP:
case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
input->formatted.src_ip[0] =
fdir_filter->input.flow.ip4_flow.src_ip;
input->formatted.dst_ip[0] =
fdir_filter->input.flow.ip4_flow.dst_ip;
break;
case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
input->formatted.src_port =
fdir_filter->input.flow.udp6_flow.src_port;
input->formatted.dst_port =
fdir_filter->input.flow.udp6_flow.dst_port;
/*for SCTP flow type, port and verify_tag are meaningless in ixgbe.*/
case RTE_ETH_FLOW_NONFRAG_IPV6_SCTP:
case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
rte_memcpy(input->formatted.src_ip,
fdir_filter->input.flow.ipv6_flow.src_ip,
sizeof(input->formatted.src_ip));
rte_memcpy(input->formatted.dst_ip,
fdir_filter->input.flow.ipv6_flow.dst_ip,
sizeof(input->formatted.dst_ip));
break;
default:
break;
}
if (mode == RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
rte_memcpy(
input->formatted.inner_mac,
fdir_filter->input.flow.mac_vlan_flow.mac_addr.addr_bytes,
sizeof(input->formatted.inner_mac));
} else if (mode == RTE_FDIR_MODE_PERFECT_TUNNEL) {
rte_memcpy(
input->formatted.inner_mac,
fdir_filter->input.flow.tunnel_flow.mac_addr.addr_bytes,
sizeof(input->formatted.inner_mac));
input->formatted.tunnel_type =
fdir_filter->input.flow.tunnel_flow.tunnel_type;
input->formatted.tni_vni =
fdir_filter->input.flow.tunnel_flow.tunnel_id;
}
return 0;
}
/*
* The below function is taken from the FreeBSD IXGBE drivers release
* 2.3.8. The only change is not to mask hash_result with IXGBE_ATR_HASH_MASK
* before returning, as the signature hash can use 16bits.
*
* The newer driver has optimised functions for calculating bucket and
* signature hashes. However they don't support IPv6 type packets for signature
* filters so are not used here.
*
* Note that the bkt_hash field in the ixgbe_atr_input structure is also never
* set.
*
* Compute the hashes for SW ATR
* @stream: input bitstream to compute the hash on
* @key: 32-bit hash key
**/
static uint32_t
ixgbe_atr_compute_hash_82599(union ixgbe_atr_input *atr_input,
uint32_t key)
{
/*
* The algorithm is as follows:
* Hash[15:0] = Sum { S[n] x K[n+16] }, n = 0...350
* where Sum {A[n]}, n = 0...n is bitwise XOR of A[0], A[1]...A[n]
* and A[n] x B[n] is bitwise AND between same length strings
*
* K[n] is 16 bits, defined as:
* for n modulo 32 >= 15, K[n] = K[n % 32 : (n % 32) - 15]
* for n modulo 32 < 15, K[n] =
* K[(n % 32:0) | (31:31 - (14 - (n % 32)))]
*
* S[n] is 16 bits, defined as:
* for n >= 15, S[n] = S[n:n - 15]
* for n < 15, S[n] = S[(n:0) | (350:350 - (14 - n))]
*
* To simplify for programming, the algorithm is implemented
* in software this way:
*
* key[31:0], hi_hash_dword[31:0], lo_hash_dword[31:0], hash[15:0]
*
* for (i = 0; i < 352; i+=32)
* hi_hash_dword[31:0] ^= Stream[(i+31):i];
*
* lo_hash_dword[15:0] ^= Stream[15:0];
* lo_hash_dword[15:0] ^= hi_hash_dword[31:16];
* lo_hash_dword[31:16] ^= hi_hash_dword[15:0];
*
* hi_hash_dword[31:0] ^= Stream[351:320];
*
* if (key[0])
* hash[15:0] ^= Stream[15:0];
*
* for (i = 0; i < 16; i++) {
* if (key[i])
* hash[15:0] ^= lo_hash_dword[(i+15):i];
* if (key[i + 16])
* hash[15:0] ^= hi_hash_dword[(i+15):i];
* }
*
*/
__be32 common_hash_dword = 0;
u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
u32 hash_result = 0;
u8 i;
/* record the flow_vm_vlan bits as they are a key part to the hash */
flow_vm_vlan = IXGBE_NTOHL(atr_input->dword_stream[0]);
/* generate common hash dword */
for (i = 1; i <= 13; i++)
common_hash_dword ^= atr_input->dword_stream[i];
hi_hash_dword = IXGBE_NTOHL(common_hash_dword);
/* low dword is word swapped version of common */
lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
/* apply flow ID/VM pool/VLAN ID bits to hash words */
hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
/* Process bits 0 and 16 */
if (key & 0x0001) hash_result ^= lo_hash_dword;
if (key & 0x00010000) hash_result ^= hi_hash_dword;
/*
* apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
* delay this because bit 0 of the stream should not be processed
* so we do not add the vlan until after bit 0 was processed
*/
lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
/* process the remaining 30 bits in the key 2 bits at a time */
for (i = 15; i; i-- ) {
if (key & (0x0001 << i)) hash_result ^= lo_hash_dword >> i;
if (key & (0x00010000 << i)) hash_result ^= hi_hash_dword >> i;
}
return hash_result;
}
static uint32_t
atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
enum rte_fdir_pballoc_type pballoc)
{
if (pballoc == RTE_FDIR_PBALLOC_256K)
return ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY) &
PERFECT_BUCKET_256KB_HASH_MASK;
else if (pballoc == RTE_FDIR_PBALLOC_128K)
return ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY) &
PERFECT_BUCKET_128KB_HASH_MASK;
else
return ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY) &
PERFECT_BUCKET_64KB_HASH_MASK;
}
/**
* ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
* @hw: pointer to hardware structure
*/
static inline int
ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, uint32_t *fdircmd)
{
int i;
for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
*fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
return 0;
rte_delay_us(IXGBE_FDIRCMD_CMD_INTERVAL_US);
}
return -ETIMEDOUT;
}
/*
* Calculate the hash value needed for signature-match filters. In the FreeBSD
* driver, this is done by the optimised function
* ixgbe_atr_compute_sig_hash_82599(). However that can't be used here as it
* doesn't support calculating a hash for an IPv6 filter.
*/
static uint32_t
atr_compute_sig_hash_82599(union ixgbe_atr_input *input,
enum rte_fdir_pballoc_type pballoc)
{
uint32_t bucket_hash, sig_hash;
if (pballoc == RTE_FDIR_PBALLOC_256K)
bucket_hash = ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY) &
SIG_BUCKET_256KB_HASH_MASK;
else if (pballoc == RTE_FDIR_PBALLOC_128K)
bucket_hash = ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY) &
SIG_BUCKET_128KB_HASH_MASK;
else
bucket_hash = ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_BUCKET_HASH_KEY) &
SIG_BUCKET_64KB_HASH_MASK;
sig_hash = ixgbe_atr_compute_hash_82599(input,
IXGBE_ATR_SIGNATURE_HASH_KEY);
return (sig_hash << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT) | bucket_hash;
}
/*
* This is based on ixgbe_fdir_write_perfect_filter_82599() in
* base/ixgbe_82599.c, with the ability to set extra flags in FDIRCMD register
* added, and IPv6 support also added. The hash value is also pre-calculated
* as the pballoc value is needed to do it.
*/
static int
fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
union ixgbe_atr_input *input, uint8_t queue,
uint32_t fdircmd, uint32_t fdirhash,
enum rte_fdir_mode mode)
{
uint32_t fdirport, fdirvlan;
u32 addr_low, addr_high;
u32 tunnel_type = 0;
int err = 0;
volatile uint32_t *reg;
if (mode == RTE_FDIR_MODE_PERFECT) {
/* record the IPv4 address (big-endian)
* can not use IXGBE_WRITE_REG.
*/
reg = IXGBE_PCI_REG_ADDR(hw, IXGBE_FDIRIPSA);
*reg = input->formatted.src_ip[0];
reg = IXGBE_PCI_REG_ADDR(hw, IXGBE_FDIRIPDA);
*reg = input->formatted.dst_ip[0];
/* record source and destination port (little-endian)*/
fdirport = IXGBE_NTOHS(input->formatted.dst_port);
fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
fdirport |= IXGBE_NTOHS(input->formatted.src_port);
IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
} else if (mode >= RTE_FDIR_MODE_PERFECT_MAC_VLAN &&
mode <= RTE_FDIR_MODE_PERFECT_TUNNEL) {
/* for mac vlan and tunnel modes */
addr_low = ((u32)input->formatted.inner_mac[0] |
((u32)input->formatted.inner_mac[1] << 8) |
((u32)input->formatted.inner_mac[2] << 16) |
((u32)input->formatted.inner_mac[3] << 24));
addr_high = ((u32)input->formatted.inner_mac[4] |
((u32)input->formatted.inner_mac[5] << 8));
if (mode == RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(0), addr_low);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(1), addr_high);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(2), 0);
} else {
/* tunnel mode */
if (input->formatted.tunnel_type !=
RTE_FDIR_TUNNEL_TYPE_NVGRE)
tunnel_type = 0x80000000;
tunnel_type |= addr_high;
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(0), addr_low);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(1), tunnel_type);
IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(2),
input->formatted.tni_vni);
}
}
/* record vlan (little-endian) and flex_bytes(big-endian) */
fdirvlan = input->formatted.flex_bytes;
fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id);
IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
/* configure FDIRHASH register */
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
/*
* flush all previous writes to make certain registers are
* programmed prior to issuing the command
*/
IXGBE_WRITE_FLUSH(hw);
/* configure FDIRCMD register */
fdircmd |= IXGBE_FDIRCMD_CMD_ADD_FLOW |
IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
fdircmd |= (uint32_t)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
fdircmd |= (uint32_t)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
PMD_DRV_LOG(DEBUG, "Rx Queue=%x hash=%x", queue, fdirhash);
err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
if (err < 0)
PMD_DRV_LOG(ERR, "Timeout writing flow director filter.");
return err;
}
/**
* This function is based on ixgbe_atr_add_signature_filter_82599() in
* base/ixgbe_82599.c, but uses a pre-calculated hash value. It also supports
* setting extra fields in the FDIRCMD register, and removes the code that was
* verifying the flow_type field. According to the documentation, a flow type of
* 00 (i.e. not TCP, UDP, or SCTP) is not supported, however it appears to
* work ok...
*
* Adds a signature hash filter
* @hw: pointer to hardware structure
* @input: unique input dword
* @queue: queue index to direct traffic to
* @fdircmd: any extra flags to set in fdircmd register
* @fdirhash: pre-calculated hash value for the filter
**/
static int
fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
union ixgbe_atr_input *input, u8 queue, uint32_t fdircmd,
uint32_t fdirhash)
{
int err = 0;
PMD_INIT_FUNC_TRACE();
/* configure FDIRCMD register */
fdircmd |= IXGBE_FDIRCMD_CMD_ADD_FLOW |
IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
fdircmd |= (uint32_t)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
PMD_DRV_LOG(DEBUG, "Rx Queue=%x hash=%x", queue, fdirhash);
err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
if (err < 0)
PMD_DRV_LOG(ERR, "Timeout writing flow director filter.");
return err;
}
/*
* This is based on ixgbe_fdir_erase_perfect_filter_82599() in
* base/ixgbe_82599.c. It is modified to take in the hash as a parameter so
* that it can be used for removing signature and perfect filters.
*/
static int
fdir_erase_filter_82599(struct ixgbe_hw *hw, uint32_t fdirhash)
{
uint32_t fdircmd = 0;
int err = 0;
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
/* flush hash to HW */
IXGBE_WRITE_FLUSH(hw);
/* Query if filter is present */
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
if (err < 0) {
PMD_INIT_LOG(ERR, "Timeout querying for flow director filter.");
return err;
}
/* if filter exists in hardware then remove it */
if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
IXGBE_WRITE_FLUSH(hw);
IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
}
err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
if (err < 0)
PMD_INIT_LOG(ERR, "Timeout erasing flow director filter.");
return err;
}
/*
* ixgbe_add_del_fdir_filter - add or remove a flow diretor filter.
* @dev: pointer to the structure rte_eth_dev
* @fdir_filter: fdir filter entry
* @del: 1 - delete, 0 - add
* @update: 1 - update
*/
static int
ixgbe_add_del_fdir_filter(struct rte_eth_dev *dev,
const struct rte_eth_fdir_filter *fdir_filter,
bool del,
bool update)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint32_t fdircmd_flags;
uint32_t fdirhash;
union ixgbe_atr_input input;
uint8_t queue;
bool is_perfect = FALSE;
int err;
struct ixgbe_hw_fdir_info *info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
enum rte_fdir_mode fdir_mode = dev->data->dev_conf.fdir_conf.mode;
if (fdir_mode == RTE_FDIR_MODE_NONE)
return -ENOTSUP;
/*
* Sanity check for x550.
* When adding a new filter with flow type set to IPv4-other,
* the flow director mask should be configed before,
* and the L4 protocol and ports are masked.
*/
if ((!del) &&
(hw->mac.type == ixgbe_mac_X550 ||
hw->mac.type == ixgbe_mac_X550EM_x ||
hw->mac.type == ixgbe_mac_X550EM_a) &&
(fdir_filter->input.flow_type ==
RTE_ETH_FLOW_NONFRAG_IPV4_OTHER) &&
(info->mask.src_port_mask != 0 ||
info->mask.dst_port_mask != 0)) {
PMD_DRV_LOG(ERR, "By this device,"
" IPv4-other is not supported without"
" L4 protocol and ports masked!");
return -ENOTSUP;
}
if (fdir_mode >= RTE_FDIR_MODE_PERFECT &&
fdir_mode <= RTE_FDIR_MODE_PERFECT_TUNNEL)
is_perfect = TRUE;
memset(&input, 0, sizeof(input));
err = ixgbe_fdir_filter_to_atr_input(fdir_filter, &input,
fdir_mode);
if (err)
return err;
if (is_perfect) {
if (input.formatted.flow_type & IXGBE_ATR_L4TYPE_IPV6_MASK) {
PMD_DRV_LOG(ERR, "IPv6 is not supported in"
" perfect mode!");
return -ENOTSUP;
}
fdirhash = atr_compute_perfect_hash_82599(&input,
dev->data->dev_conf.fdir_conf.pballoc);
fdirhash |= fdir_filter->soft_id <<
IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
} else
fdirhash = atr_compute_sig_hash_82599(&input,
dev->data->dev_conf.fdir_conf.pballoc);
if (del) {
err = fdir_erase_filter_82599(hw, fdirhash);
if (err < 0)
PMD_DRV_LOG(ERR, "Fail to delete FDIR filter!");
else
PMD_DRV_LOG(DEBUG, "Success to delete FDIR filter!");
return err;
}
/* add or update an fdir filter*/
fdircmd_flags = (update) ? IXGBE_FDIRCMD_FILTER_UPDATE : 0;
if (fdir_filter->action.behavior == RTE_ETH_FDIR_REJECT) {
if (is_perfect) {
queue = dev->data->dev_conf.fdir_conf.drop_queue;
fdircmd_flags |= IXGBE_FDIRCMD_DROP;
} else {
PMD_DRV_LOG(ERR, "Drop option is not supported in"
" signature mode.");
return -EINVAL;
}
} else if (fdir_filter->action.behavior == RTE_ETH_FDIR_ACCEPT &&
fdir_filter->action.rx_queue < IXGBE_MAX_RX_QUEUE_NUM)
queue = (uint8_t)fdir_filter->action.rx_queue;
else
return -EINVAL;
if (is_perfect) {
err = fdir_write_perfect_filter_82599(hw, &input, queue,
fdircmd_flags, fdirhash,
fdir_mode);
} else {
err = fdir_add_signature_filter_82599(hw, &input, queue,
fdircmd_flags, fdirhash);
}
if (err < 0)
PMD_DRV_LOG(ERR, "Fail to add FDIR filter!");
else
PMD_DRV_LOG(DEBUG, "Success to add FDIR filter");
return err;
}
static int
ixgbe_fdir_flush(struct rte_eth_dev *dev)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct ixgbe_hw_fdir_info *info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
int ret;
ret = ixgbe_reinit_fdir_tables_82599(hw);
if (ret < 0) {
PMD_INIT_LOG(ERR, "Failed to re-initialize FD table.");
return ret;
}
info->f_add = 0;
info->f_remove = 0;
info->add = 0;
info->remove = 0;
return ret;
}
#define FDIRENTRIES_NUM_SHIFT 10
static void
ixgbe_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct ixgbe_hw_fdir_info *info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
uint32_t fdirctrl, max_num;
uint8_t offset;
fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
offset = ((fdirctrl & IXGBE_FDIRCTRL_FLEX_MASK) >>
IXGBE_FDIRCTRL_FLEX_SHIFT) * sizeof(uint16_t);
fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
max_num = (1 << (FDIRENTRIES_NUM_SHIFT +
(fdirctrl & FDIRCTRL_PBALLOC_MASK)));
if (fdir_info->mode >= RTE_FDIR_MODE_PERFECT &&
fdir_info->mode <= RTE_FDIR_MODE_PERFECT_TUNNEL)
fdir_info->guarant_spc = max_num;
else if (fdir_info->mode == RTE_FDIR_MODE_SIGNATURE)
fdir_info->guarant_spc = max_num * 4;
fdir_info->mask.vlan_tci_mask = info->mask.vlan_tci_mask;
fdir_info->mask.ipv4_mask.src_ip = info->mask.src_ipv4_mask;
fdir_info->mask.ipv4_mask.dst_ip = info->mask.dst_ipv4_mask;
IPV6_MASK_TO_ADDR(info->mask.src_ipv6_mask,
fdir_info->mask.ipv6_mask.src_ip);
IPV6_MASK_TO_ADDR(info->mask.dst_ipv6_mask,
fdir_info->mask.ipv6_mask.dst_ip);
fdir_info->mask.src_port_mask = info->mask.src_port_mask;
fdir_info->mask.dst_port_mask = info->mask.dst_port_mask;
fdir_info->mask.mac_addr_byte_mask = info->mask.mac_addr_byte_mask;
fdir_info->mask.tunnel_id_mask = info->mask.tunnel_id_mask;
fdir_info->mask.tunnel_type_mask = info->mask.tunnel_type_mask;
fdir_info->max_flexpayload = IXGBE_FDIR_MAX_FLEX_LEN;
if (fdir_info->mode == RTE_FDIR_MODE_PERFECT_MAC_VLAN ||
fdir_info->mode == RTE_FDIR_MODE_PERFECT_TUNNEL)
fdir_info->flow_types_mask[0] = 0;
else
fdir_info->flow_types_mask[0] = IXGBE_FDIR_FLOW_TYPES;
fdir_info->flex_payload_unit = sizeof(uint16_t);
fdir_info->max_flex_payload_segment_num = 1;
fdir_info->flex_payload_limit = IXGBE_MAX_FLX_SOURCE_OFF;
fdir_info->flex_conf.nb_payloads = 1;
fdir_info->flex_conf.flex_set[0].type = RTE_ETH_RAW_PAYLOAD;
fdir_info->flex_conf.flex_set[0].src_offset[0] = offset;
fdir_info->flex_conf.flex_set[0].src_offset[1] = offset + 1;
fdir_info->flex_conf.nb_flexmasks = 1;
fdir_info->flex_conf.flex_mask[0].flow_type = RTE_ETH_FLOW_UNKNOWN;
fdir_info->flex_conf.flex_mask[0].mask[0] =
(uint8_t)(info->mask.flex_bytes_mask & 0x00FF);
fdir_info->flex_conf.flex_mask[0].mask[1] =
(uint8_t)((info->mask.flex_bytes_mask & 0xFF00) >> 8);
}
static void
ixgbe_fdir_stats_get(struct rte_eth_dev *dev, struct rte_eth_fdir_stats *fdir_stats)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct ixgbe_hw_fdir_info *info =
IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
uint32_t reg, max_num;
enum rte_fdir_mode fdir_mode = dev->data->dev_conf.fdir_conf.mode;
/* Get the information from registers */
reg = IXGBE_READ_REG(hw, IXGBE_FDIRFREE);
info->collision = (uint16_t)((reg & IXGBE_FDIRFREE_COLL_MASK) >>
IXGBE_FDIRFREE_COLL_SHIFT);
info->free = (uint16_t)((reg & IXGBE_FDIRFREE_FREE_MASK) >>
IXGBE_FDIRFREE_FREE_SHIFT);
reg = IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
info->maxhash = (uint16_t)((reg & IXGBE_FDIRLEN_MAXHASH_MASK) >>
IXGBE_FDIRLEN_MAXHASH_SHIFT);
info->maxlen = (uint8_t)((reg & IXGBE_FDIRLEN_MAXLEN_MASK) >>
IXGBE_FDIRLEN_MAXLEN_SHIFT);
reg = IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
info->remove += (reg & IXGBE_FDIRUSTAT_REMOVE_MASK) >>
IXGBE_FDIRUSTAT_REMOVE_SHIFT;
info->add += (reg & IXGBE_FDIRUSTAT_ADD_MASK) >>
IXGBE_FDIRUSTAT_ADD_SHIFT;
reg = IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT) & 0xFFFF;
info->f_remove += (reg & IXGBE_FDIRFSTAT_FREMOVE_MASK) >>
IXGBE_FDIRFSTAT_FREMOVE_SHIFT;
info->f_add += (reg & IXGBE_FDIRFSTAT_FADD_MASK) >>
IXGBE_FDIRFSTAT_FADD_SHIFT;
/* Copy the new information in the fdir parameter */
fdir_stats->collision = info->collision;
fdir_stats->free = info->free;
fdir_stats->maxhash = info->maxhash;
fdir_stats->maxlen = info->maxlen;
fdir_stats->remove = info->remove;
fdir_stats->add = info->add;
fdir_stats->f_remove = info->f_remove;
fdir_stats->f_add = info->f_add;
reg = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
max_num = (1 << (FDIRENTRIES_NUM_SHIFT +
(reg & FDIRCTRL_PBALLOC_MASK)));
if (fdir_mode >= RTE_FDIR_MODE_PERFECT &&
fdir_mode <= RTE_FDIR_MODE_PERFECT_TUNNEL)
fdir_stats->guarant_cnt = max_num - fdir_stats->free;
else if (fdir_mode == RTE_FDIR_MODE_SIGNATURE)
fdir_stats->guarant_cnt = max_num * 4 - fdir_stats->free;
}
/*
* ixgbe_fdir_ctrl_func - deal with all operations on flow director.
* @dev: pointer to the structure rte_eth_dev
* @filter_op:operation will be taken
* @arg: a pointer to specific structure corresponding to the filter_op
*/
int
ixgbe_fdir_ctrl_func(struct rte_eth_dev *dev,
enum rte_filter_op filter_op, void *arg)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
int ret = 0;
if (hw->mac.type != ixgbe_mac_82599EB &&
hw->mac.type != ixgbe_mac_X540 &&
hw->mac.type != ixgbe_mac_X550 &&
hw->mac.type != ixgbe_mac_X550EM_x &&
hw->mac.type != ixgbe_mac_X550EM_a)
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 = ixgbe_add_del_fdir_filter(dev,
(struct rte_eth_fdir_filter *)arg, FALSE, FALSE);
break;
case RTE_ETH_FILTER_UPDATE:
ret = ixgbe_add_del_fdir_filter(dev,
(struct rte_eth_fdir_filter *)arg, FALSE, TRUE);
break;
case RTE_ETH_FILTER_DELETE:
ret = ixgbe_add_del_fdir_filter(dev,
(struct rte_eth_fdir_filter *)arg, TRUE, FALSE);
break;
case RTE_ETH_FILTER_FLUSH:
ret = ixgbe_fdir_flush(dev);
break;
case RTE_ETH_FILTER_INFO:
ixgbe_fdir_info_get(dev, (struct rte_eth_fdir_info *)arg);
break;
case RTE_ETH_FILTER_STATS:
ixgbe_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;
}
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