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net/bnxt: add VNIC functions and structs

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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 <ajit.khaparde@broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Reviewed-by: David Christensen <david.christensen@broadcom.com>
This commit is contained in:
Ajit Khaparde 2016-06-15 14:23:06 -07:00 committed by Bruce Richardson
parent 1d0704f4d7
commit 9738793f28
5 changed files with 375 additions and 0 deletions
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1
drivers/net/bnxt/Makefile
View File

@ -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

14
drivers/net/bnxt/bnxt.h
View File

@ -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];

277
drivers/net/bnxt/bnxt_vnic.c Normal file
View File

@ -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 <inttypes.h>
#include <rte_memzone.h>
#include <rte_malloc.h>
#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;
}

80
drivers/net/bnxt/bnxt_vnic.h Normal file
View File

@ -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 <sys/queue.h>
#include <stdbool.h>
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

3
drivers/net/bnxt/hsi_struct_def_dpdk.h
View File

@ -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 */
/*