--- /dev/null
+/*-
+ * 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;
+}
Code Review / deb_dpdk.git / blobdiff