From 9738793f28ec4e871bbce3344b1cdad8a9262a43 Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Wed, 15 Jun 2016 14:23:06 -0700 Subject: [PATCH] net/bnxt: add VNIC functions and structs Add functions to allocate, initialize, and free vnics. A VNIC represents a virtual interface. It is a resource in the RX path of the chip and is used to setup various target actions such as RSS, MAC filtering etc. for the physical function in use. Signed-off-by: Ajit Khaparde Signed-off-by: Stephen Hurd Reviewed-by: David Christensen --- drivers/net/bnxt/Makefile | 1 + drivers/net/bnxt/bnxt.h | 14 ++ drivers/net/bnxt/bnxt_vnic.c | 277 +++++++++++++++++++++++++ drivers/net/bnxt/bnxt_vnic.h | 80 +++++++ drivers/net/bnxt/hsi_struct_def_dpdk.h | 3 + 5 files changed, 375 insertions(+) create mode 100644 drivers/net/bnxt/bnxt_vnic.c create mode 100644 drivers/net/bnxt/bnxt_vnic.h diff --git a/drivers/net/bnxt/Makefile b/drivers/net/bnxt/Makefile index 9965597fa4..c57afaaa24 100644 --- a/drivers/net/bnxt/Makefile +++ b/drivers/net/bnxt/Makefile @@ -50,6 +50,7 @@ EXPORT_MAP := rte_pmd_bnxt_version.map # SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_ethdev.c SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_hwrm.c +SRCS-$(CONFIG_RTE_LIBRTE_BNXT_PMD) += bnxt_vnic.c # # Export include files diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h index bfce91ea4d..d0f84f4869 100644 --- a/drivers/net/bnxt/bnxt.h +++ b/drivers/net/bnxt/bnxt.h @@ -45,6 +45,13 @@ #define BNXT_MAX_MTU 9000 #define VLAN_TAG_SIZE 4 +enum bnxt_hw_context { + HW_CONTEXT_NONE = 0, + HW_CONTEXT_IS_RSS = 1, + HW_CONTEXT_IS_COS = 2, + HW_CONTEXT_IS_LB = 3, +}; + struct bnxt_vf_info { uint16_t fw_fid; uint8_t mac_addr[ETHER_ADDR_LEN]; @@ -130,6 +137,13 @@ struct bnxt { unsigned int tx_cp_nr_rings; struct bnxt_tx_queue **tx_queues; + struct bnxt_vnic_info *vnic_info; + STAILQ_HEAD(, bnxt_vnic_info) free_vnic_list; + + /* VNIC pointer for flow filter (VMDq) pools */ +#define MAX_FF_POOLS ETH_64_POOLS + STAILQ_HEAD(, bnxt_vnic_info) ff_pool[MAX_FF_POOLS]; + #define MAX_NUM_MAC_ADDR 32 uint8_t mac_addr[ETHER_ADDR_LEN]; diff --git a/drivers/net/bnxt/bnxt_vnic.c b/drivers/net/bnxt/bnxt_vnic.c new file mode 100644 index 0000000000..c04c4c7406 --- /dev/null +++ b/drivers/net/bnxt/bnxt_vnic.c @@ -0,0 +1,277 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2014-2015 Broadcom Corporation. + * 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 Broadcom 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 + +#include +#include + +#include "bnxt.h" +#include "bnxt_vnic.h" +#include "hsi_struct_def_dpdk.h" + +/* + * VNIC Functions + */ + +static void prandom_bytes(void *dest_ptr, size_t len) +{ + char *dest = (char *)dest_ptr; + uint64_t rb; + + while (len) { + rb = rte_rand(); + if (len >= 8) { + memcpy(dest, &rb, 8); + len -= 8; + dest += 8; + } else { + memcpy(dest, &rb, len); + dest += len; + len = 0; + } + } +} + +void bnxt_init_vnics(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + uint16_t max_vnics; + int i, j; + + if (BNXT_PF(bp)) { + struct bnxt_pf_info *pf = &bp->pf; + + max_vnics = pf->max_vnics; + } else { + struct bnxt_vf_info *vf = &bp->vf; + + max_vnics = vf->max_vnics; + } + STAILQ_INIT(&bp->free_vnic_list); + for (i = 0; i < max_vnics; i++) { + vnic = &bp->vnic_info[i]; + vnic->fw_vnic_id = (uint16_t)HWRM_NA_SIGNATURE; + vnic->fw_rss_cos_lb_ctx = (uint16_t)HWRM_NA_SIGNATURE; + vnic->ctx_is_rss_cos_lb = HW_CONTEXT_NONE; + + for (j = 0; j < MAX_QUEUES_PER_VNIC; j++) + vnic->fw_grp_ids[j] = (uint16_t)HWRM_NA_SIGNATURE; + + prandom_bytes(vnic->rss_hash_key, HW_HASH_KEY_SIZE); + STAILQ_INIT(&vnic->filter); + STAILQ_INSERT_TAIL(&bp->free_vnic_list, vnic, next); + } + for (i = 0; i < MAX_FF_POOLS; i++) + STAILQ_INIT(&bp->ff_pool[i]); +} + +int bnxt_free_vnic(struct bnxt *bp, struct bnxt_vnic_info *vnic, + int pool) +{ + struct bnxt_vnic_info *temp; + + temp = STAILQ_FIRST(&bp->ff_pool[pool]); + while (temp) { + if (temp == vnic) { + STAILQ_REMOVE(&bp->ff_pool[pool], vnic, + bnxt_vnic_info, next); + vnic->fw_vnic_id = (uint16_t)HWRM_NA_SIGNATURE; + STAILQ_INSERT_TAIL(&bp->free_vnic_list, vnic, + next); + return 0; + } + temp = STAILQ_NEXT(temp, next); + } + RTE_LOG(ERR, PMD, "VNIC %p is not found in pool[%d]\n", vnic, pool); + return -EINVAL; +} + +struct bnxt_vnic_info *bnxt_alloc_vnic(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + + /* Find the 1st unused vnic from the free_vnic_list pool*/ + vnic = STAILQ_FIRST(&bp->free_vnic_list); + if (!vnic) { + RTE_LOG(ERR, PMD, "No more free VNIC resources\n"); + return NULL; + } + STAILQ_REMOVE_HEAD(&bp->free_vnic_list, next); + return vnic; +} + +void bnxt_free_all_vnics(struct bnxt *bp) +{ + struct bnxt_vnic_info *temp, *next; + int i; + + for (i = 0; i < MAX_FF_POOLS; i++) { + temp = STAILQ_FIRST(&bp->ff_pool[i]); + while (temp) { + next = STAILQ_NEXT(temp, next); + STAILQ_REMOVE(&bp->ff_pool[i], temp, bnxt_vnic_info, + next); + STAILQ_INSERT_TAIL(&bp->free_vnic_list, temp, next); + temp = next; + } + } +} + +void bnxt_free_vnic_attributes(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + + STAILQ_FOREACH(vnic, &bp->free_vnic_list, next) { + if (vnic->rss_table) { + /* 'Unreserve' the rss_table */ + /* N/A */ + + vnic->rss_table = NULL; + } + + if (vnic->rss_hash_key) { + /* 'Unreserve' the rss_hash_key */ + /* N/A */ + + vnic->rss_hash_key = NULL; + } + } +} + +int bnxt_alloc_vnic_attributes(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + struct rte_pci_device *pdev = bp->pdev; + const struct rte_memzone *mz; + char mz_name[RTE_MEMZONE_NAMESIZE]; + int entry_length = RTE_CACHE_LINE_ROUNDUP( + HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table) + + HW_HASH_KEY_SIZE); + uint16_t max_vnics; + int i; + + if (BNXT_PF(bp)) { + struct bnxt_pf_info *pf = &bp->pf; + + max_vnics = pf->max_vnics; + } else { + struct bnxt_vf_info *vf = &bp->vf; + + max_vnics = vf->max_vnics; + } + snprintf(mz_name, RTE_MEMZONE_NAMESIZE, + "bnxt_%04x:%02x:%02x:%02x_vnicattr", pdev->addr.domain, + pdev->addr.bus, pdev->addr.devid, pdev->addr.function); + mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0; + mz = rte_memzone_lookup(mz_name); + if (!mz) { + mz = rte_memzone_reserve(mz_name, + entry_length * max_vnics, + SOCKET_ID_ANY, + RTE_MEMZONE_2MB | + RTE_MEMZONE_SIZE_HINT_ONLY); + if (!mz) + return -ENOMEM; + } + + for (i = 0; i < max_vnics; i++) { + vnic = &bp->vnic_info[i]; + + /* Allocate rss table and hash key */ + vnic->rss_table = + (void *)((char *)mz->addr + (entry_length * i)); + memset(vnic->rss_table, -1, entry_length); + + vnic->rss_table_dma_addr = mz->phys_addr + (entry_length * i); + vnic->rss_hash_key = (void *)((char *)vnic->rss_table + + HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table)); + + vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + + HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table); + } + + return 0; +} + +void bnxt_free_vnic_mem(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + uint16_t max_vnics, i; + + if (BNXT_PF(bp)) { + struct bnxt_pf_info *pf = &bp->pf; + + max_vnics = pf->max_vnics; + } else { + struct bnxt_vf_info *vf = &bp->vf; + + max_vnics = vf->max_vnics; + } + for (i = 0; i < max_vnics; i++) { + vnic = &bp->vnic_info[i]; + if (vnic->fw_vnic_id != (uint16_t)HWRM_NA_SIGNATURE) { + RTE_LOG(ERR, PMD, "VNIC is not freed yet!\n"); + /* TODO Call HWRM to free VNIC */ + } + } + + rte_free(bp->vnic_info); + bp->vnic_info = NULL; +} + +int bnxt_alloc_vnic_mem(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic_mem; + uint16_t max_vnics; + + if (BNXT_PF(bp)) { + struct bnxt_pf_info *pf = &bp->pf; + + max_vnics = pf->max_vnics; + } else { + struct bnxt_vf_info *vf = &bp->vf; + + max_vnics = vf->max_vnics; + } + /* Allocate memory for VNIC pool and filter pool */ + vnic_mem = rte_zmalloc("bnxt_vnic_info", + max_vnics * sizeof(struct bnxt_vnic_info), 0); + if (vnic_mem == NULL) { + RTE_LOG(ERR, PMD, "Failed to alloc memory for %d VNICs", + max_vnics); + return -ENOMEM; + } + bp->vnic_info = vnic_mem; + return 0; +} diff --git a/drivers/net/bnxt/bnxt_vnic.h b/drivers/net/bnxt/bnxt_vnic.h new file mode 100644 index 0000000000..9671ba42a6 --- /dev/null +++ b/drivers/net/bnxt/bnxt_vnic.h @@ -0,0 +1,80 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2014-2015 Broadcom Corporation. + * 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 Broadcom 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. + */ + +#ifndef _BNXT_VNIC_H_ +#define _BNXT_VNIC_H_ + +#include +#include + +struct bnxt_vnic_info { + STAILQ_ENTRY(bnxt_vnic_info) next; + uint8_t ff_pool_idx; + + uint16_t fw_vnic_id; /* returned by Chimp during alloc */ + uint16_t fw_rss_cos_lb_ctx; + uint16_t ctx_is_rss_cos_lb; +#define MAX_NUM_TRAFFIC_CLASSES 8 +#define MAX_NUM_RSS_QUEUES_PER_VNIC 16 +#define MAX_QUEUES_PER_VNIC (MAX_NUM_RSS_QUEUES_PER_VNIC + \ + MAX_NUM_TRAFFIC_CLASSES) + uint16_t start_grp_id; + uint16_t end_grp_id; + uint16_t fw_grp_ids[MAX_QUEUES_PER_VNIC]; + uint16_t hash_type; + phys_addr_t rss_table_dma_addr; + uint16_t *rss_table; + phys_addr_t rss_hash_key_dma_addr; + void *rss_hash_key; + uint32_t flags; +#define BNXT_VNIC_INFO_PROMISC (1 << 0) +#define BNXT_VNIC_INFO_ALLMULTI (1 << 1) + + bool vlan_strip; + bool func_default; + + STAILQ_HEAD(, bnxt_filter_info) filter; +}; + +struct bnxt; +void bnxt_init_vnics(struct bnxt *bp); +int bnxt_free_vnic(struct bnxt *bp, struct bnxt_vnic_info *vnic, + int pool); +struct bnxt_vnic_info *bnxt_alloc_vnic(struct bnxt *bp); +void bnxt_free_all_vnics(struct bnxt *bp); +void bnxt_free_vnic_attributes(struct bnxt *bp); +int bnxt_alloc_vnic_attributes(struct bnxt *bp); +void bnxt_free_vnic_mem(struct bnxt *bp); +int bnxt_alloc_vnic_mem(struct bnxt *bp); + +#endif diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h index cd2b14e27e..92e39ca78b 100644 --- a/drivers/net/bnxt/hsi_struct_def_dpdk.h +++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h @@ -43,8 +43,11 @@ * Following is the signature for HWRM message field that indicates not * applicable (All F's). Need to cast it the size of the field if needed. */ +#define HWRM_NA_SIGNATURE ((uint32_t)(-1)) #define HWRM_MAX_REQ_LEN (128) /* hwrm_func_buf_rgtr */ #define HWRM_MAX_RESP_LEN (176) /* hwrm_func_qstats */ +#define HW_HASH_INDEX_SIZE 0x80 /* 7 bit indirection table index. */ +#define HW_HASH_KEY_SIZE 40 #define HWRM_RESP_VALID_KEY 1 /* valid key for HWRM response */ /*