diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_pf.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_pf.c | 760 |
1 files changed, 760 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_pf.c b/drivers/net/ixgbe/ixgbe_pf.c new file mode 100644 index 00000000..a2787d90 --- /dev/null +++ b/drivers/net/ixgbe/ixgbe_pf.c @@ -0,0 +1,760 @@ +/*- + * 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 <errno.h> +#include <stdint.h> +#include <stdlib.h> +#include <unistd.h> +#include <stdarg.h> +#include <inttypes.h> + +#include <rte_interrupts.h> +#include <rte_log.h> +#include <rte_debug.h> +#include <rte_eal.h> +#include <rte_ether.h> +#include <rte_ethdev.h> +#include <rte_memcpy.h> +#include <rte_malloc.h> +#include <rte_random.h> + +#include "base/ixgbe_common.h" +#include "ixgbe_ethdev.h" + +#define IXGBE_MAX_VFTA (128) +#define IXGBE_VF_MSG_SIZE_DEFAULT 1 +#define IXGBE_VF_GET_QUEUE_MSG_SIZE 5 +#define IXGBE_ETHERTYPE_FLOW_CTRL 0x8808 + +static inline uint16_t +dev_num_vf(struct rte_eth_dev *eth_dev) +{ + return eth_dev->pci_dev->max_vfs; +} + +static inline +int ixgbe_vf_perm_addr_gen(struct rte_eth_dev *dev, uint16_t vf_num) +{ + unsigned char vf_mac_addr[ETHER_ADDR_LEN]; + struct ixgbe_vf_info *vfinfo = + *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private); + uint16_t vfn; + + for (vfn = 0; vfn < vf_num; vfn++) { + eth_random_addr(vf_mac_addr); + /* keep the random address as default */ + memcpy(vfinfo[vfn].vf_mac_addresses, vf_mac_addr, + ETHER_ADDR_LEN); + } + + return 0; +} + +static inline int +ixgbe_mb_intr_setup(struct rte_eth_dev *dev) +{ + struct ixgbe_interrupt *intr = + IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private); + + intr->mask |= IXGBE_EICR_MAILBOX; + + return 0; +} + +void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev) +{ + struct ixgbe_vf_info **vfinfo = + IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private); + struct ixgbe_mirror_info *mirror_info = + IXGBE_DEV_PRIVATE_TO_PFDATA(eth_dev->data->dev_private); + struct ixgbe_uta_info *uta_info = + IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private); + struct ixgbe_hw *hw = + IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private); + uint16_t vf_num; + uint8_t nb_queue; + + PMD_INIT_FUNC_TRACE(); + + RTE_ETH_DEV_SRIOV(eth_dev).active = 0; + if (0 == (vf_num = dev_num_vf(eth_dev))) + return; + + *vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) * vf_num, 0); + if (*vfinfo == NULL) + rte_panic("Cannot allocate memory for private VF data\n"); + + memset(mirror_info,0,sizeof(struct ixgbe_mirror_info)); + memset(uta_info,0,sizeof(struct ixgbe_uta_info)); + hw->mac.mc_filter_type = 0; + + if (vf_num >= ETH_32_POOLS) { + nb_queue = 2; + RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS; + } else if (vf_num >= ETH_16_POOLS) { + nb_queue = 4; + RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS; + } else { + nb_queue = 8; + RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS; + } + + RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue; + RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num; + RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue); + + ixgbe_vf_perm_addr_gen(eth_dev, vf_num); + + /* init_mailbox_params */ + hw->mbx.ops.init_params(hw); + + /* set mb interrupt mask */ + ixgbe_mb_intr_setup(eth_dev); + + return; +} + +void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev) +{ + struct ixgbe_vf_info **vfinfo; + uint16_t vf_num; + + PMD_INIT_FUNC_TRACE(); + + vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private); + + RTE_ETH_DEV_SRIOV(eth_dev).active = 0; + RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = 0; + RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = 0; + RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = 0; + + vf_num = dev_num_vf(eth_dev); + if (vf_num == 0) + return; + + rte_free(*vfinfo); + *vfinfo = NULL; +} + +static void +ixgbe_add_tx_flow_control_drop_filter(struct rte_eth_dev *eth_dev) +{ + struct ixgbe_hw *hw = + IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private); + struct ixgbe_filter_info *filter_info = + IXGBE_DEV_PRIVATE_TO_FILTER_INFO(eth_dev->data->dev_private); + uint16_t vf_num; + int i; + + if (!hw->mac.ops.set_ethertype_anti_spoofing) { + RTE_LOG(INFO, PMD, "ether type anti-spoofing is not" + " supported.\n"); + return; + } + + /* occupy an entity of ether type filter */ + for (i = 0; i < IXGBE_MAX_ETQF_FILTERS; i++) { + if (!(filter_info->ethertype_mask & (1 << i))) { + filter_info->ethertype_mask |= 1 << i; + filter_info->ethertype_filters[i] = + IXGBE_ETHERTYPE_FLOW_CTRL; + break; + } + } + if (i == IXGBE_MAX_ETQF_FILTERS) { + RTE_LOG(ERR, PMD, "Cannot find an unused ether type filter" + " entity for flow control.\n"); + return; + } + + IXGBE_WRITE_REG(hw, IXGBE_ETQF(i), + (IXGBE_ETQF_FILTER_EN | + IXGBE_ETQF_TX_ANTISPOOF | + IXGBE_ETHERTYPE_FLOW_CTRL)); + + vf_num = dev_num_vf(eth_dev); + for (i = 0; i < vf_num; i++) + hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i); +} + +int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev) +{ + uint32_t vtctl, fcrth; + uint32_t vfre_slot, vfre_offset; + uint16_t vf_num; + const uint8_t VFRE_SHIFT = 5; /* VFRE 32 bits per slot */ + const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1); + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private); + uint32_t gpie, gcr_ext; + uint32_t vlanctrl; + int i; + + if (0 == (vf_num = dev_num_vf(eth_dev))) + return -1; + + /* enable VMDq and set the default pool for PF */ + vtctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); + vtctl |= IXGBE_VMD_CTL_VMDQ_EN; + vtctl &= ~IXGBE_VT_CTL_POOL_MASK; + vtctl |= RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx + << IXGBE_VT_CTL_POOL_SHIFT; + vtctl |= IXGBE_VT_CTL_REPLEN; + IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vtctl); + + vfre_offset = vf_num & VFRE_MASK; + vfre_slot = (vf_num >> VFRE_SHIFT) > 0 ? 1 : 0; + + /* Enable pools reserved to PF only */ + IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot), (~0U) << vfre_offset); + IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot ^ 1), vfre_slot - 1); + IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot), (~0U) << vfre_offset); + IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot ^ 1), vfre_slot - 1); + + /* PFDMA Tx General Switch Control Enables VMDQ loopback */ + IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); + + /* clear VMDq map to perment rar 0 */ + hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL); + + /* clear VMDq map to scan rar 127 */ + IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(hw->mac.num_rar_entries), 0); + IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(hw->mac.num_rar_entries), 0); + + /* set VMDq map to default PF pool */ + hw->mac.ops.set_vmdq(hw, 0, RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx); + + /* + * SW msut set GCR_EXT.VT_Mode the same as GPIE.VT_Mode + */ + gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); + gcr_ext &= ~IXGBE_GCR_EXT_VT_MODE_MASK; + + gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); + gpie &= ~IXGBE_GPIE_VTMODE_MASK; + gpie |= IXGBE_GPIE_MSIX_MODE; + + switch (RTE_ETH_DEV_SRIOV(eth_dev).active) { + case ETH_64_POOLS: + gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64; + gpie |= IXGBE_GPIE_VTMODE_64; + break; + case ETH_32_POOLS: + gcr_ext |= IXGBE_GCR_EXT_VT_MODE_32; + gpie |= IXGBE_GPIE_VTMODE_32; + break; + case ETH_16_POOLS: + gcr_ext |= IXGBE_GCR_EXT_VT_MODE_16; + gpie |= IXGBE_GPIE_VTMODE_16; + break; + } + + IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); + IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); + + /* + * enable vlan filtering and allow all vlan tags through + */ + vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); + vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */ + IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl); + + /* VFTA - enable all vlan filters */ + for (i = 0; i < IXGBE_MAX_VFTA; i++) { + IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF); + } + + /* Enable MAC Anti-Spoofing */ + hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num); + + /* set flow control threshold to max to avoid tx switch hang */ + for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) { + IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0); + fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 32; + IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth); + } + + ixgbe_add_tx_flow_control_drop_filter(eth_dev); + + return 0; +} + +static void +set_rx_mode(struct rte_eth_dev *dev) +{ + struct rte_eth_dev_data *dev_data = dev->data; + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; + uint16_t vfn = dev_num_vf(dev); + + /* Check for Promiscuous and All Multicast modes */ + fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); + + /* set all bits that we expect to always be set */ + fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */ + fctrl |= IXGBE_FCTRL_BAM; + + /* clear the bits we are changing the status of */ + fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); + + if (dev_data->promiscuous) { + fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); + vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE); + } else { + if (dev_data->all_multicast) { + fctrl |= IXGBE_FCTRL_MPE; + vmolr |= IXGBE_VMOLR_MPE; + } else { + vmolr |= IXGBE_VMOLR_ROMPE; + } + } + + if (hw->mac.type != ixgbe_mac_82598EB) { + vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(vfn)) & + ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | + IXGBE_VMOLR_ROPE); + IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vfn), vmolr); + } + + IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); + + if (dev->data->dev_conf.rxmode.hw_vlan_strip) + ixgbe_vlan_hw_strip_enable_all(dev); + else + ixgbe_vlan_hw_strip_disable_all(dev); +} + +static inline void +ixgbe_vf_reset_event(struct rte_eth_dev *dev, uint16_t vf) +{ + struct ixgbe_hw *hw = + IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_vf_info *vfinfo = + *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private)); + int rar_entry = hw->mac.num_rar_entries - (vf + 1); + uint32_t vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); + + vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_ROMPE | + IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE); + IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); + + IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); + + /* reset multicast table array for vf */ + vfinfo[vf].num_vf_mc_hashes = 0; + + /* reset rx mode */ + set_rx_mode(dev); + + hw->mac.ops.clear_rar(hw, rar_entry); +} + +static inline void +ixgbe_vf_reset_msg(struct rte_eth_dev *dev, uint16_t vf) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint32_t reg; + uint32_t reg_offset, vf_shift; + const uint8_t VFRE_SHIFT = 5; /* VFRE 32 bits per slot */ + const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1); + + vf_shift = vf & VFRE_MASK; + reg_offset = (vf >> VFRE_SHIFT) > 0 ? 1 : 0; + + /* enable transmit and receive for vf */ + reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); + reg |= (reg | (1 << vf_shift)); + IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); + + reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); + reg |= (reg | (1 << vf_shift)); + IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); + + /* Enable counting of spoofed packets in the SSVPC register */ + reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); + reg |= (1 << vf_shift); + IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); + + ixgbe_vf_reset_event(dev, vf); +} + +static int +ixgbe_enable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint32_t vmolr; + + vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); + + RTE_LOG(INFO, PMD, "VF %u: enabling multicast promiscuous\n", vf); + + vmolr |= IXGBE_VMOLR_MPE; + + IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); + + return 0; +} + +static int +ixgbe_disable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint32_t vmolr; + + vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); + + RTE_LOG(INFO, PMD, "VF %u: disabling multicast promiscuous\n", vf); + + vmolr &= ~IXGBE_VMOLR_MPE; + + IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); + + return 0; +} + +static int +ixgbe_vf_reset(struct rte_eth_dev *dev, uint16_t vf, uint32_t *msgbuf) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_vf_info *vfinfo = + *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private)); + unsigned char *vf_mac = vfinfo[vf].vf_mac_addresses; + int rar_entry = hw->mac.num_rar_entries - (vf + 1); + uint8_t *new_mac = (uint8_t *)(&msgbuf[1]); + + ixgbe_vf_reset_msg(dev, vf); + + hw->mac.ops.set_rar(hw, rar_entry, vf_mac, vf, IXGBE_RAH_AV); + + /* Disable multicast promiscuous at reset */ + ixgbe_disable_vf_mc_promisc(dev, vf); + + /* reply to reset with ack and vf mac address */ + msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK; + rte_memcpy(new_mac, vf_mac, ETHER_ADDR_LEN); + /* + * Piggyback the multicast filter type so VF can compute the + * correct vectors + */ + msgbuf[3] = hw->mac.mc_filter_type; + ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); + + return 0; +} + +static int +ixgbe_vf_set_mac_addr(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_vf_info *vfinfo = + *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private)); + int rar_entry = hw->mac.num_rar_entries - (vf + 1); + uint8_t *new_mac = (uint8_t *)(&msgbuf[1]); + + if (is_valid_assigned_ether_addr((struct ether_addr*)new_mac)) { + rte_memcpy(vfinfo[vf].vf_mac_addresses, new_mac, 6); + return hw->mac.ops.set_rar(hw, rar_entry, new_mac, vf, IXGBE_RAH_AV); + } + return -1; +} + +static int +ixgbe_vf_set_multicast(struct rte_eth_dev *dev, __rte_unused uint32_t vf, uint32_t *msgbuf) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_vf_info *vfinfo = + *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private)); + int nb_entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> + IXGBE_VT_MSGINFO_SHIFT; + uint16_t *hash_list = (uint16_t *)&msgbuf[1]; + uint32_t mta_idx; + uint32_t mta_shift; + const uint32_t IXGBE_MTA_INDEX_MASK = 0x7F; + const uint32_t IXGBE_MTA_BIT_SHIFT = 5; + const uint32_t IXGBE_MTA_BIT_MASK = (0x1 << IXGBE_MTA_BIT_SHIFT) - 1; + uint32_t reg_val; + int i; + + /* Disable multicast promiscuous first */ + ixgbe_disable_vf_mc_promisc(dev, vf); + + /* only so many hash values supported */ + nb_entries = RTE_MIN(nb_entries, IXGBE_MAX_VF_MC_ENTRIES); + + /* store the mc entries */ + vfinfo->num_vf_mc_hashes = (uint16_t)nb_entries; + for (i = 0; i < nb_entries; i++) { + vfinfo->vf_mc_hashes[i] = hash_list[i]; + } + + for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { + mta_idx = (vfinfo->vf_mc_hashes[i] >> IXGBE_MTA_BIT_SHIFT) + & IXGBE_MTA_INDEX_MASK; + mta_shift = vfinfo->vf_mc_hashes[i] & IXGBE_MTA_BIT_MASK; + reg_val = IXGBE_READ_REG(hw, IXGBE_MTA(mta_idx)); + reg_val |= (1 << mta_shift); + IXGBE_WRITE_REG(hw, IXGBE_MTA(mta_idx), reg_val); + } + + return 0; +} + +static int +ixgbe_vf_set_vlan(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf) +{ + int add, vid; + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_vf_info *vfinfo = + *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private)); + + add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) + >> IXGBE_VT_MSGINFO_SHIFT; + vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); + + if (add) + vfinfo[vf].vlan_count++; + else if (vfinfo[vf].vlan_count) + vfinfo[vf].vlan_count--; + return hw->mac.ops.set_vfta(hw, vid, vf, (bool)add); +} + +static int +ixgbe_set_vf_lpe(struct rte_eth_dev *dev, __rte_unused uint32_t vf, uint32_t *msgbuf) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint32_t new_mtu = msgbuf[1]; + uint32_t max_frs; + int max_frame = new_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN; + + /* X540 and X550 support jumbo frames in IOV mode */ + if (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 -1; + + if ((max_frame < ETHER_MIN_LEN) || (max_frame > ETHER_MAX_JUMBO_FRAME_LEN)) + return -1; + + max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) & + IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT; + if (max_frs < new_mtu) { + max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT; + IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); + } + + return 0; +} + +static int +ixgbe_negotiate_vf_api(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf) +{ + uint32_t api_version = msgbuf[1]; + struct ixgbe_vf_info *vfinfo = + *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private); + + switch (api_version) { + case ixgbe_mbox_api_10: + case ixgbe_mbox_api_11: + case ixgbe_mbox_api_12: + vfinfo[vf].api_version = (uint8_t)api_version; + return 0; + default: + break; + } + + RTE_LOG(ERR, PMD, "Negotiate invalid api version %u from VF %d\n", + api_version, vf); + + return -1; +} + +static int +ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf) +{ + struct ixgbe_vf_info *vfinfo = + *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private); + uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool; + + /* Verify if the PF supports the mbox APIs version or not */ + switch (vfinfo[vf].api_version) { + case ixgbe_mbox_api_20: + case ixgbe_mbox_api_11: + case ixgbe_mbox_api_12: + break; + default: + return -1; + } + + /* Notify VF of Rx and Tx queue number */ + msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool; + msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool; + + /* Notify VF of default queue */ + msgbuf[IXGBE_VF_DEF_QUEUE] = default_q; + + /* + * FIX ME if it needs fill msgbuf[IXGBE_VF_TRANS_VLAN] + * for VLAN strip or VMDQ_DCB or VMDQ_DCB_RSS + */ + + return 0; +} + +static int +ixgbe_set_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf) +{ + struct ixgbe_vf_info *vfinfo = + *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private)); + bool enable = !!msgbuf[1]; /* msgbuf contains the flag to enable */ + + switch (vfinfo[vf].api_version) { + case ixgbe_mbox_api_12: + break; + default: + return -1; + } + + if (enable) + return ixgbe_enable_vf_mc_promisc(dev, vf); + else + return ixgbe_disable_vf_mc_promisc(dev, vf); +} + +static int +ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf) +{ + uint16_t mbx_size = IXGBE_VFMAILBOX_SIZE; + uint16_t msg_size = IXGBE_VF_MSG_SIZE_DEFAULT; + uint32_t msgbuf[IXGBE_VFMAILBOX_SIZE]; + int32_t retval; + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_vf_info *vfinfo = + *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private); + + retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); + if (retval) { + PMD_DRV_LOG(ERR, "Error mbx recv msg from VF %d", vf); + return retval; + } + + /* do nothing with the message already been processed */ + if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) + return retval; + + /* flush the ack before we write any messages back */ + IXGBE_WRITE_FLUSH(hw); + + /* perform VF reset */ + if (msgbuf[0] == IXGBE_VF_RESET) { + int ret = ixgbe_vf_reset(dev, vf, msgbuf); + vfinfo[vf].clear_to_send = true; + return ret; + } + + /* check & process VF to PF mailbox message */ + switch ((msgbuf[0] & 0xFFFF)) { + case IXGBE_VF_SET_MAC_ADDR: + retval = ixgbe_vf_set_mac_addr(dev, vf, msgbuf); + break; + case IXGBE_VF_SET_MULTICAST: + retval = ixgbe_vf_set_multicast(dev, vf, msgbuf); + break; + case IXGBE_VF_SET_LPE: + retval = ixgbe_set_vf_lpe(dev, vf, msgbuf); + break; + case IXGBE_VF_SET_VLAN: + retval = ixgbe_vf_set_vlan(dev, vf, msgbuf); + break; + case IXGBE_VF_API_NEGOTIATE: + retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf); + break; + case IXGBE_VF_GET_QUEUES: + retval = ixgbe_get_vf_queues(dev, vf, msgbuf); + msg_size = IXGBE_VF_GET_QUEUE_MSG_SIZE; + break; + case IXGBE_VF_UPDATE_XCAST_MODE: + retval = ixgbe_set_vf_mc_promisc(dev, vf, msgbuf); + break; + default: + PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]); + retval = IXGBE_ERR_MBX; + break; + } + + /* response the VF according to the message process result */ + if (retval) + msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; + else + msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; + + msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; + + ixgbe_write_mbx(hw, msgbuf, msg_size, vf); + + return retval; +} + +static inline void +ixgbe_rcv_ack_from_vf(struct rte_eth_dev *dev, uint16_t vf) +{ + uint32_t msg = IXGBE_VT_MSGTYPE_NACK; + struct ixgbe_hw *hw = + IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_vf_info *vfinfo = + *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private); + + if (!vfinfo[vf].clear_to_send) + ixgbe_write_mbx(hw, &msg, 1, vf); +} + +void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev) +{ + uint16_t vf; + struct ixgbe_hw *hw = + IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private); + + for (vf = 0; vf < dev_num_vf(eth_dev); vf++) { + /* check & process vf function level reset */ + if (!ixgbe_check_for_rst(hw, vf)) + ixgbe_vf_reset_event(eth_dev, vf); + + /* check & process vf mailbox messages */ + if (!ixgbe_check_for_msg(hw, vf)) + ixgbe_rcv_msg_from_vf(eth_dev, vf); + + /* check & process acks from vf */ + if (!ixgbe_check_for_ack(hw, vf)) + ixgbe_rcv_ack_from_vf(eth_dev, vf); + } +} |