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numam-dpdk/drivers/net/bnxt/bnxt.h
Ajit Khaparde f2a768d4d1 net/bnxt: add completion ring 
Structures, macros, and functions for working with completion rings
in the driver.

Completion Ring is used by the Ethernet controller to provide the
status of transmitted & received packets, report errors, report
status changes to the host software, and inter-function forwarding
requests.  In addition to the generic ring features, a completion ring
can have a statistics context that has statistics periodically DMAed
to host memory, along with a consumer index.

bnxt_handle_async_event() handles completions not related to a specific
transmit or receive ring such as link status changes which arrive on
the default completion ring.

Other physical or virtual functions on the same device may send an HWRM
command forward request.  In this case, we will pass it through
unvalidated. In the future, we will be able to have the PF monitor and
control VF access to the HWRM interface if needed.

New HWRM Calls:
bnxt_hwrm_exec_fwd_resp:
	Execute an encapsulated command and forward the response.

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>
2016-06-20 17:21:51 +02:00

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/*-
* BSD LICENSE
*
* Copyright(c) Broadcom Limited.
* 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_H_
#define _BNXT_H_
#include <inttypes.h>
#include <sys/queue.h>
#include <rte_ethdev.h>
#include <rte_memory.h>
#include <rte_lcore.h>
#include <rte_spinlock.h>
#include "bnxt_cpr.h"
#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];
uint16_t max_rsscos_ctx;
uint16_t max_cp_rings;
uint16_t max_tx_rings;
uint16_t max_rx_rings;
uint16_t max_l2_ctx;
uint16_t max_vnics;
struct bnxt_pf_info *pf;
};
struct bnxt_pf_info {
#define BNXT_FIRST_PF_FID 1
#define BNXT_MAX_VFS(bp) (bp->pf.max_vfs)
#define BNXT_FIRST_VF_FID 128
#define BNXT_PF_RINGS_USED(bp) bnxt_get_num_queues(bp)
#define BNXT_PF_RINGS_AVAIL(bp) (bp->pf.max_cp_rings - BNXT_PF_RINGS_USED(bp))
uint32_t fw_fid;
uint8_t port_id;
uint8_t mac_addr[ETHER_ADDR_LEN];
uint16_t max_rsscos_ctx;
uint16_t max_cp_rings;
uint16_t max_tx_rings;
uint16_t max_rx_rings;
uint16_t max_l2_ctx;
uint16_t max_vnics;
uint16_t first_vf_id;
uint16_t active_vfs;
uint16_t max_vfs;
void *vf_req_buf;
phys_addr_t vf_req_buf_dma_addr;
uint32_t vf_req_fwd[8];
struct bnxt_vf_info *vf;
};
/* Max wait time is 10 * 100ms = 1s */
#define BNXT_LINK_WAIT_CNT 10
#define BNXT_LINK_WAIT_INTERVAL 100
struct bnxt_link_info {
uint8_t phy_flags;
uint8_t mac_type;
uint8_t phy_link_status;
uint8_t loop_back;
uint8_t link_up;
uint8_t duplex;
uint8_t pause;
uint8_t force_pause;
uint8_t auto_pause;
uint8_t auto_mode;
#define PHY_VER_LEN 3
uint8_t phy_ver[PHY_VER_LEN];
uint16_t link_speed;
uint16_t support_speeds;
uint16_t auto_link_speed;
uint16_t auto_link_speed_mask;
uint32_t preemphasis;
};
#define BNXT_COS_QUEUE_COUNT 8
struct bnxt_cos_queue_info {
uint8_t id;
uint8_t profile;
};
struct bnxt {
void *bar0;
struct rte_eth_dev *eth_dev;
struct rte_pci_device *pdev;
uint32_t flags;
#define BNXT_FLAG_REGISTERED (1 << 0)
#define BNXT_FLAG_VF (1 << 1)
#define BNXT_PF(bp) (!((bp)->flags & BNXT_FLAG_VF))
#define BNXT_VF(bp) ((bp)->flags & BNXT_FLAG_VF)
unsigned int rx_nr_rings;
unsigned int rx_cp_nr_rings;
struct bnxt_rx_queue **rx_queues;
unsigned int tx_nr_rings;
unsigned int tx_cp_nr_rings;
struct bnxt_tx_queue **tx_queues;
/* Default completion ring */
struct bnxt_cp_ring_info *def_cp_ring;
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];
uint16_t hwrm_cmd_seq;
void *hwrm_cmd_resp_addr;
phys_addr_t hwrm_cmd_resp_dma_addr;
rte_spinlock_t hwrm_lock;
uint16_t max_req_len;
uint16_t max_resp_len;
struct bnxt_link_info link_info;
struct bnxt_cos_queue_info cos_queue[BNXT_COS_QUEUE_COUNT];
struct bnxt_pf_info pf;
struct bnxt_vf_info vf;
};
#endif
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