/* Broadcom NetXtreme-C/E network driver.
 *
 * Copyright (c) 2014-2016 Broadcom Corporation
 * Copyright (c) 2016-2019 Broadcom Limited
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation.
 */

#include <linux/module.h>

#include <linux/stringify.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/dma-mapping.h>
#include <linux/bitops.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <asm/byteorder.h>
#include <asm/page.h>
#include <linux/time.h>
#include <linux/mii.h>
#include <linux/mdio.h>
#include <linux/if.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/rtc.h>
#include <linux/bpf.h>
#include <net/ip.h>
#include <net/tcp.h>
#include <net/udp.h>
#include <net/checksum.h>
#include <net/ip6_checksum.h>
#include <net/udp_tunnel.h>
#include <linux/workqueue.h>
#include <linux/prefetch.h>
#include <linux/cache.h>
#include <linux/log2.h>
#include <linux/aer.h>
#include <linux/bitmap.h>
#include <linux/ptp_clock_kernel.h>
#include <linux/timecounter.h>
#include <linux/cpu_rmap.h>
#include <linux/cpumask.h>
#include <net/pkt_cls.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <net/page_pool.h>

#include "bnxt_hsi.h"
#include "bnxt.h"
#include "bnxt_hwrm.h"
#include "bnxt_ulp.h"
#include "bnxt_sriov.h"
#include "bnxt_ethtool.h"
#include "bnxt_dcb.h"
#include "bnxt_xdp.h"
#include "bnxt_ptp.h"
#include "bnxt_vfr.h"
#include "bnxt_tc.h"
#include "bnxt_devlink.h"
#include "bnxt_debugfs.h"

#define BNXT_TX_TIMEOUT		(5 * HZ)
#define BNXT_DEF_MSG_ENABLE	(NETIF_MSG_DRV | NETIF_MSG_HW | \
				 NETIF_MSG_TX_ERR)

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Broadcom BCM573xx network driver");

#define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN)
#define BNXT_RX_DMA_OFFSET NET_SKB_PAD
#define BNXT_RX_COPY_THRESH 256

#define BNXT_TX_PUSH_THRESH 164

enum board_idx {
	BCM57301,
	BCM57302,
	BCM57304,
	BCM57417_NPAR,
	BCM58700,
	BCM57311,
	BCM57312,
	BCM57402,
	BCM57404,
	BCM57406,
	BCM57402_NPAR,
	BCM57407,
	BCM57412,
	BCM57414,
	BCM57416,
	BCM57417,
	BCM57412_NPAR,
	BCM57314,
	BCM57417_SFP,
	BCM57416_SFP,
	BCM57404_NPAR,
	BCM57406_NPAR,
	BCM57407_SFP,
	BCM57407_NPAR,
	BCM57414_NPAR,
	BCM57416_NPAR,
	BCM57452,
	BCM57454,
	BCM5745x_NPAR,
	BCM57508,
	BCM57504,
	BCM57502,
	BCM57508_NPAR,
	BCM57504_NPAR,
	BCM57502_NPAR,
	BCM58802,
	BCM58804,
	BCM58808,
	NETXTREME_E_VF,
	NETXTREME_C_VF,
	NETXTREME_S_VF,
	NETXTREME_C_VF_HV,
	NETXTREME_E_VF_HV,
	NETXTREME_E_P5_VF,
	NETXTREME_E_P5_VF_HV,
};

/* indexed by enum above */
static const struct {
	char *name;
} board_info[] = {
	[BCM57301] = { "Broadcom BCM57301 NetXtreme-C 10Gb Ethernet" },
	[BCM57302] = { "Broadcom BCM57302 NetXtreme-C 10Gb/25Gb Ethernet" },
	[BCM57304] = { "Broadcom BCM57304 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" },
	[BCM57417_NPAR] = { "Broadcom BCM57417 NetXtreme-E Ethernet Partition" },
	[BCM58700] = { "Broadcom BCM58700 Nitro 1Gb/2.5Gb/10Gb Ethernet" },
	[BCM57311] = { "Broadcom BCM57311 NetXtreme-C 10Gb Ethernet" },
	[BCM57312] = { "Broadcom BCM57312 NetXtreme-C 10Gb/25Gb Ethernet" },
	[BCM57402] = { "Broadcom BCM57402 NetXtreme-E 10Gb Ethernet" },
	[BCM57404] = { "Broadcom BCM57404 NetXtreme-E 10Gb/25Gb Ethernet" },
	[BCM57406] = { "Broadcom BCM57406 NetXtreme-E 10GBase-T Ethernet" },
	[BCM57402_NPAR] = { "Broadcom BCM57402 NetXtreme-E Ethernet Partition" },
	[BCM57407] = { "Broadcom BCM57407 NetXtreme-E 10GBase-T Ethernet" },
	[BCM57412] = { "Broadcom BCM57412 NetXtreme-E 10Gb Ethernet" },
	[BCM57414] = { "Broadcom BCM57414 NetXtreme-E 10Gb/25Gb Ethernet" },
	[BCM57416] = { "Broadcom BCM57416 NetXtreme-E 10GBase-T Ethernet" },
	[BCM57417] = { "Broadcom BCM57417 NetXtreme-E 10GBase-T Ethernet" },
	[BCM57412_NPAR] = { "Broadcom BCM57412 NetXtreme-E Ethernet Partition" },
	[BCM57314] = { "Broadcom BCM57314 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" },
	[BCM57417_SFP] = { "Broadcom BCM57417 NetXtreme-E 10Gb/25Gb Ethernet" },
	[BCM57416_SFP] = { "Broadcom BCM57416 NetXtreme-E 10Gb Ethernet" },
	[BCM57404_NPAR] = { "Broadcom BCM57404 NetXtreme-E Ethernet Partition" },
	[BCM57406_NPAR] = { "Broadcom BCM57406 NetXtreme-E Ethernet Partition" },
	[BCM57407_SFP] = { "Broadcom BCM57407 NetXtreme-E 25Gb Ethernet" },
	[BCM57407_NPAR] = { "Broadcom BCM57407 NetXtreme-E Ethernet Partition" },
	[BCM57414_NPAR] = { "Broadcom BCM57414 NetXtreme-E Ethernet Partition" },
	[BCM57416_NPAR] = { "Broadcom BCM57416 NetXtreme-E Ethernet Partition" },
	[BCM57452] = { "Broadcom BCM57452 NetXtreme-E 10Gb/25Gb/40Gb/50Gb Ethernet" },
	[BCM57454] = { "Broadcom BCM57454 NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
	[BCM5745x_NPAR] = { "Broadcom BCM5745x NetXtreme-E Ethernet Partition" },
	[BCM57508] = { "Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" },
	[BCM57504] = { "Broadcom BCM57504 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet" },
	[BCM57502] = { "Broadcom BCM57502 NetXtreme-E 10Gb/25Gb/50Gb Ethernet" },
	[BCM57508_NPAR] = { "Broadcom BCM57508 NetXtreme-E Ethernet Partition" },
	[BCM57504_NPAR] = { "Broadcom BCM57504 NetXtreme-E Ethernet Partition" },
	[BCM57502_NPAR] = { "Broadcom BCM57502 NetXtreme-E Ethernet Partition" },
	[BCM58802] = { "Broadcom BCM58802 NetXtreme-S 10Gb/25Gb/40Gb/50Gb Ethernet" },
	[BCM58804] = { "Broadcom BCM58804 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
	[BCM58808] = { "Broadcom BCM58808 NetXtreme-S 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" },
	[NETXTREME_E_VF] = { "Broadcom NetXtreme-E Ethernet Virtual Function" },
	[NETXTREME_C_VF] = { "Broadcom NetXtreme-C Ethernet Virtual Function" },
	[NETXTREME_S_VF] = { "Broadcom NetXtreme-S Ethernet Virtual Function" },
	[NETXTREME_C_VF_HV] = { "Broadcom NetXtreme-C Virtual Function for Hyper-V" },
	[NETXTREME_E_VF_HV] = { "Broadcom NetXtreme-E Virtual Function for Hyper-V" },
	[NETXTREME_E_P5_VF] = { "Broadcom BCM5750X NetXtreme-E Ethernet Virtual Function" },
	[NETXTREME_E_P5_VF_HV] = { "Broadcom BCM5750X NetXtreme-E Virtual Function for Hyper-V" },
};

static const struct pci_device_id bnxt_pci_tbl[] = {
	{ PCI_VDEVICE(BROADCOM, 0x1604), .driver_data = BCM5745x_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x1605), .driver_data = BCM5745x_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x1614), .driver_data = BCM57454 },
	{ PCI_VDEVICE(BROADCOM, 0x16c0), .driver_data = BCM57417_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16c8), .driver_data = BCM57301 },
	{ PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 },
	{ PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 },
	{ PCI_VDEVICE(BROADCOM, 0x16cc), .driver_data = BCM57417_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16cd), .driver_data = BCM58700 },
	{ PCI_VDEVICE(BROADCOM, 0x16ce), .driver_data = BCM57311 },
	{ PCI_VDEVICE(BROADCOM, 0x16cf), .driver_data = BCM57312 },
	{ PCI_VDEVICE(BROADCOM, 0x16d0), .driver_data = BCM57402 },
	{ PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 },
	{ PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 },
	{ PCI_VDEVICE(BROADCOM, 0x16d4), .driver_data = BCM57402_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16d5), .driver_data = BCM57407 },
	{ PCI_VDEVICE(BROADCOM, 0x16d6), .driver_data = BCM57412 },
	{ PCI_VDEVICE(BROADCOM, 0x16d7), .driver_data = BCM57414 },
	{ PCI_VDEVICE(BROADCOM, 0x16d8), .driver_data = BCM57416 },
	{ PCI_VDEVICE(BROADCOM, 0x16d9), .driver_data = BCM57417 },
	{ PCI_VDEVICE(BROADCOM, 0x16de), .driver_data = BCM57412_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16df), .driver_data = BCM57314 },
	{ PCI_VDEVICE(BROADCOM, 0x16e2), .driver_data = BCM57417_SFP },
	{ PCI_VDEVICE(BROADCOM, 0x16e3), .driver_data = BCM57416_SFP },
	{ PCI_VDEVICE(BROADCOM, 0x16e7), .driver_data = BCM57404_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16e8), .driver_data = BCM57406_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16e9), .driver_data = BCM57407_SFP },
	{ PCI_VDEVICE(BROADCOM, 0x16ea), .driver_data = BCM57407_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16eb), .driver_data = BCM57412_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16ec), .driver_data = BCM57414_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16ed), .driver_data = BCM57414_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16ee), .driver_data = BCM57416_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16ef), .driver_data = BCM57416_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x16f0), .driver_data = BCM58808 },
	{ PCI_VDEVICE(BROADCOM, 0x16f1), .driver_data = BCM57452 },
	{ PCI_VDEVICE(BROADCOM, 0x1750), .driver_data = BCM57508 },
	{ PCI_VDEVICE(BROADCOM, 0x1751), .driver_data = BCM57504 },
	{ PCI_VDEVICE(BROADCOM, 0x1752), .driver_data = BCM57502 },
	{ PCI_VDEVICE(BROADCOM, 0x1800), .driver_data = BCM57508_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x1801), .driver_data = BCM57504_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x1802), .driver_data = BCM57502_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x1803), .driver_data = BCM57508_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x1804), .driver_data = BCM57504_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0x1805), .driver_data = BCM57502_NPAR },
	{ PCI_VDEVICE(BROADCOM, 0xd802), .driver_data = BCM58802 },
	{ PCI_VDEVICE(BROADCOM, 0xd804), .driver_data = BCM58804 },
#ifdef CONFIG_BNXT_SRIOV
	{ PCI_VDEVICE(BROADCOM, 0x1606), .driver_data = NETXTREME_E_VF },
	{ PCI_VDEVICE(BROADCOM, 0x1607), .driver_data = NETXTREME_E_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x1608), .driver_data = NETXTREME_E_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x1609), .driver_data = NETXTREME_E_VF },
	{ PCI_VDEVICE(BROADCOM, 0x16bd), .driver_data = NETXTREME_E_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x16c1), .driver_data = NETXTREME_E_VF },
	{ PCI_VDEVICE(BROADCOM, 0x16c2), .driver_data = NETXTREME_C_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x16c3), .driver_data = NETXTREME_C_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x16c4), .driver_data = NETXTREME_E_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x16c5), .driver_data = NETXTREME_E_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = NETXTREME_C_VF },
	{ PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = NETXTREME_E_VF },
	{ PCI_VDEVICE(BROADCOM, 0x16dc), .driver_data = NETXTREME_E_VF },
	{ PCI_VDEVICE(BROADCOM, 0x16e1), .driver_data = NETXTREME_C_VF },
	{ PCI_VDEVICE(BROADCOM, 0x16e5), .driver_data = NETXTREME_C_VF },
	{ PCI_VDEVICE(BROADCOM, 0x16e6), .driver_data = NETXTREME_C_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x1806), .driver_data = NETXTREME_E_P5_VF },
	{ PCI_VDEVICE(BROADCOM, 0x1807), .driver_data = NETXTREME_E_P5_VF },
	{ PCI_VDEVICE(BROADCOM, 0x1808), .driver_data = NETXTREME_E_P5_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0x1809), .driver_data = NETXTREME_E_P5_VF_HV },
	{ PCI_VDEVICE(BROADCOM, 0xd800), .driver_data = NETXTREME_S_VF },
#endif
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl);

static const u16 bnxt_vf_req_snif[] = {
	HWRM_FUNC_CFG,
	HWRM_FUNC_VF_CFG,
	HWRM_PORT_PHY_QCFG,
	HWRM_CFA_L2_FILTER_ALLOC,
};

static const u16 bnxt_async_events_arr[] = {
	ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE,
	ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE,
	ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD,
	ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED,
	ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE,
	ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE,
	ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE,
	ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY,
	ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY,
	ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION,
	ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE,
	ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG,
	ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST,
	ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP,
	ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT,
};

static struct workqueue_struct *bnxt_pf_wq;

static bool bnxt_vf_pciid(enum board_idx idx)
{
	return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF ||
		idx == NETXTREME_S_VF || idx == NETXTREME_C_VF_HV ||
		idx == NETXTREME_E_VF_HV || idx == NETXTREME_E_P5_VF ||
		idx == NETXTREME_E_P5_VF_HV);
}

#define DB_CP_REARM_FLAGS	(DB_KEY_CP | DB_IDX_VALID)
#define DB_CP_FLAGS		(DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS)
#define DB_CP_IRQ_DIS_FLAGS	(DB_KEY_CP | DB_IRQ_DIS)

#define BNXT_CP_DB_IRQ_DIS(db)						\
		writel(DB_CP_IRQ_DIS_FLAGS, db)

#define BNXT_DB_CQ(db, idx)						\
	writel(DB_CP_FLAGS | RING_CMP(idx), (db)->doorbell)

#define BNXT_DB_NQ_P5(db, idx)						\
	bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ | RING_CMP(idx),	\
		    (db)->doorbell)

#define BNXT_DB_CQ_ARM(db, idx)						\
	writel(DB_CP_REARM_FLAGS | RING_CMP(idx), (db)->doorbell)

#define BNXT_DB_NQ_ARM_P5(db, idx)					\
	bnxt_writeq(bp, (db)->db_key64 | DBR_TYPE_NQ_ARM | RING_CMP(idx),\
		    (db)->doorbell)

static void bnxt_db_nq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5)
		BNXT_DB_NQ_P5(db, idx);
	else
		BNXT_DB_CQ(db, idx);
}

static void bnxt_db_nq_arm(struct bnxt *bp, struct bnxt_db_info *db, u32 idx)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5)
		BNXT_DB_NQ_ARM_P5(db, idx);
	else
		BNXT_DB_CQ_ARM(db, idx);
}

static void bnxt_db_cq(struct bnxt *bp, struct bnxt_db_info *db, u32 idx)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5)
		bnxt_writeq(bp, db->db_key64 | DBR_TYPE_CQ_ARMALL |
			    RING_CMP(idx), db->doorbell);
	else
		BNXT_DB_CQ(db, idx);
}

const u16 bnxt_lhint_arr[] = {
	TX_BD_FLAGS_LHINT_512_AND_SMALLER,
	TX_BD_FLAGS_LHINT_512_TO_1023,
	TX_BD_FLAGS_LHINT_1024_TO_2047,
	TX_BD_FLAGS_LHINT_1024_TO_2047,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
	TX_BD_FLAGS_LHINT_2048_AND_LARGER,
};

static u16 bnxt_xmit_get_cfa_action(struct sk_buff *skb)
{
	struct metadata_dst *md_dst = skb_metadata_dst(skb);

	if (!md_dst || md_dst->type != METADATA_HW_PORT_MUX)
		return 0;

	return md_dst->u.port_info.port_id;
}

static void bnxt_txr_db_kick(struct bnxt *bp, struct bnxt_tx_ring_info *txr,
			     u16 prod)
{
	bnxt_db_write(bp, &txr->tx_db, prod);
	txr->kick_pending = 0;
}

static bool bnxt_txr_netif_try_stop_queue(struct bnxt *bp,
					  struct bnxt_tx_ring_info *txr,
					  struct netdev_queue *txq)
{
	netif_tx_stop_queue(txq);

	/* netif_tx_stop_queue() must be done before checking
	 * tx index in bnxt_tx_avail() below, because in
	 * bnxt_tx_int(), we update tx index before checking for
	 * netif_tx_queue_stopped().
	 */
	smp_mb();
	if (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh) {
		netif_tx_wake_queue(txq);
		return false;
	}

	return true;
}

static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
	struct bnxt *bp = netdev_priv(dev);
	struct tx_bd *txbd;
	struct tx_bd_ext *txbd1;
	struct netdev_queue *txq;
	int i;
	dma_addr_t mapping;
	unsigned int length, pad = 0;
	u32 len, free_size, vlan_tag_flags, cfa_action, flags;
	u16 prod, last_frag;
	struct pci_dev *pdev = bp->pdev;
	struct bnxt_tx_ring_info *txr;
	struct bnxt_sw_tx_bd *tx_buf;
	__le32 lflags = 0;

	i = skb_get_queue_mapping(skb);
	if (unlikely(i >= bp->tx_nr_rings)) {
		dev_kfree_skb_any(skb);
		atomic_long_inc(&dev->tx_dropped);
		return NETDEV_TX_OK;
	}

	txq = netdev_get_tx_queue(dev, i);
	txr = &bp->tx_ring[bp->tx_ring_map[i]];
	prod = txr->tx_prod;

	free_size = bnxt_tx_avail(bp, txr);
	if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) {
		/* We must have raced with NAPI cleanup */
		if (net_ratelimit() && txr->kick_pending)
			netif_warn(bp, tx_err, dev,
				   "bnxt: ring busy w/ flush pending!\n");
		if (bnxt_txr_netif_try_stop_queue(bp, txr, txq))
			return NETDEV_TX_BUSY;
	}

	length = skb->len;
	len = skb_headlen(skb);
	last_frag = skb_shinfo(skb)->nr_frags;

	txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];

	txbd->tx_bd_opaque = prod;

	tx_buf = &txr->tx_buf_ring[prod];
	tx_buf->skb = skb;
	tx_buf->nr_frags = last_frag;

	vlan_tag_flags = 0;
	cfa_action = bnxt_xmit_get_cfa_action(skb);
	if (skb_vlan_tag_present(skb)) {
		vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN |
				 skb_vlan_tag_get(skb);
		/* Currently supports 8021Q, 8021AD vlan offloads
		 * QINQ1, QINQ2, QINQ3 vlan headers are deprecated
		 */
		if (skb->vlan_proto == htons(ETH_P_8021Q))
			vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT;
	}

	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
		struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;

		if (ptp && ptp->tx_tstamp_en && !skb_is_gso(skb) &&
		    atomic_dec_if_positive(&ptp->tx_avail) >= 0) {
			if (!bnxt_ptp_parse(skb, &ptp->tx_seqid,
					    &ptp->tx_hdr_off)) {
				if (vlan_tag_flags)
					ptp->tx_hdr_off += VLAN_HLEN;
				lflags |= cpu_to_le32(TX_BD_FLAGS_STAMP);
				skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
			} else {
				atomic_inc(&bp->ptp_cfg->tx_avail);
			}
		}
	}

	if (unlikely(skb->no_fcs))
		lflags |= cpu_to_le32(TX_BD_FLAGS_NO_CRC);

	if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh &&
	    !lflags) {
		struct tx_push_buffer *tx_push_buf = txr->tx_push;
		struct tx_push_bd *tx_push = &tx_push_buf->push_bd;
		struct tx_bd_ext *tx_push1 = &tx_push->txbd2;
		void __iomem *db = txr->tx_db.doorbell;
		void *pdata = tx_push_buf->data;
		u64 *end;
		int j, push_len;

		/* Set COAL_NOW to be ready quickly for the next push */
		tx_push->tx_bd_len_flags_type =
			cpu_to_le32((length << TX_BD_LEN_SHIFT) |
					TX_BD_TYPE_LONG_TX_BD |
					TX_BD_FLAGS_LHINT_512_AND_SMALLER |
					TX_BD_FLAGS_COAL_NOW |
					TX_BD_FLAGS_PACKET_END |
					(2 << TX_BD_FLAGS_BD_CNT_SHIFT));

		if (skb->ip_summed == CHECKSUM_PARTIAL)
			tx_push1->tx_bd_hsize_lflags =
					cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
		else
			tx_push1->tx_bd_hsize_lflags = 0;

		tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
		tx_push1->tx_bd_cfa_action =
			cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT);

		end = pdata + length;
		end = PTR_ALIGN(end, 8) - 1;
		*end = 0;

		skb_copy_from_linear_data(skb, pdata, len);
		pdata += len;
		for (j = 0; j < last_frag; j++) {
			skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
			void *fptr;

			fptr = skb_frag_address_safe(frag);
			if (!fptr)
				goto normal_tx;

			memcpy(pdata, fptr, skb_frag_size(frag));
			pdata += skb_frag_size(frag);
		}

		txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type;
		txbd->tx_bd_haddr = txr->data_mapping;
		prod = NEXT_TX(prod);
		txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];
		memcpy(txbd, tx_push1, sizeof(*txbd));
		prod = NEXT_TX(prod);
		tx_push->doorbell =
			cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod);
		txr->tx_prod = prod;

		tx_buf->is_push = 1;
		netdev_tx_sent_queue(txq, skb->len);
		wmb();	/* Sync is_push and byte queue before pushing data */

		push_len = (length + sizeof(*tx_push) + 7) / 8;
		if (push_len > 16) {
			__iowrite64_copy(db, tx_push_buf, 16);
			__iowrite32_copy(db + 4, tx_push_buf + 1,
					 (push_len - 16) << 1);
		} else {
			__iowrite64_copy(db, tx_push_buf, push_len);
		}

		goto tx_done;
	}

normal_tx:
	if (length < BNXT_MIN_PKT_SIZE) {
		pad = BNXT_MIN_PKT_SIZE - length;
		if (skb_pad(skb, pad))
			/* SKB already freed. */
			goto tx_kick_pending;
		length = BNXT_MIN_PKT_SIZE;
	}

	mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE);

	if (unlikely(dma_mapping_error(&pdev->dev, mapping)))
		goto tx_free;

	dma_unmap_addr_set(tx_buf, mapping, mapping);
	flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD |
		((last_frag + 2) << TX_BD_FLAGS_BD_CNT_SHIFT);

	txbd->tx_bd_haddr = cpu_to_le64(mapping);

	prod = NEXT_TX(prod);
	txbd1 = (struct tx_bd_ext *)
		&txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];

	txbd1->tx_bd_hsize_lflags = lflags;
	if (skb_is_gso(skb)) {
		u32 hdr_len;

		if (skb->encapsulation)
			hdr_len = skb_inner_network_offset(skb) +
				skb_inner_network_header_len(skb) +
				inner_tcp_hdrlen(skb);
		else
			hdr_len = skb_transport_offset(skb) +
				tcp_hdrlen(skb);

		txbd1->tx_bd_hsize_lflags |= cpu_to_le32(TX_BD_FLAGS_LSO |
					TX_BD_FLAGS_T_IPID |
					(hdr_len << (TX_BD_HSIZE_SHIFT - 1)));
		length = skb_shinfo(skb)->gso_size;
		txbd1->tx_bd_mss = cpu_to_le32(length);
		length += hdr_len;
	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
		txbd1->tx_bd_hsize_lflags |=
			cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM);
		txbd1->tx_bd_mss = 0;
	}

	length >>= 9;
	if (unlikely(length >= ARRAY_SIZE(bnxt_lhint_arr))) {
		dev_warn_ratelimited(&pdev->dev, "Dropped oversize %d bytes TX packet.\n",
				     skb->len);
		i = 0;
		goto tx_dma_error;
	}
	flags |= bnxt_lhint_arr[length];
	txbd->tx_bd_len_flags_type = cpu_to_le32(flags);

	txbd1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags);
	txbd1->tx_bd_cfa_action =
			cpu_to_le32(cfa_action << TX_BD_CFA_ACTION_SHIFT);
	for (i = 0; i < last_frag; i++) {
		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];

		prod = NEXT_TX(prod);
		txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)];

		len = skb_frag_size(frag);
		mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len,
					   DMA_TO_DEVICE);

		if (unlikely(dma_mapping_error(&pdev->dev, mapping)))
			goto tx_dma_error;

		tx_buf = &txr->tx_buf_ring[prod];
		dma_unmap_addr_set(tx_buf, mapping, mapping);

		txbd->tx_bd_haddr = cpu_to_le64(mapping);

		flags = len << TX_BD_LEN_SHIFT;
		txbd->tx_bd_len_flags_type = cpu_to_le32(flags);
	}

	flags &= ~TX_BD_LEN;
	txbd->tx_bd_len_flags_type =
		cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags |
			    TX_BD_FLAGS_PACKET_END);

	netdev_tx_sent_queue(txq, skb->len);

	skb_tx_timestamp(skb);

	/* Sync BD data before updating doorbell */
	wmb();

	prod = NEXT_TX(prod);
	txr->tx_prod = prod;

	if (!netdev_xmit_more() || netif_xmit_stopped(txq))
		bnxt_txr_db_kick(bp, txr, prod);
	else
		txr->kick_pending = 1;

tx_done:

	if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) {
		if (netdev_xmit_more() && !tx_buf->is_push)
			bnxt_txr_db_kick(bp, txr, prod);

		bnxt_txr_netif_try_stop_queue(bp, txr, txq);
	}
	return NETDEV_TX_OK;

tx_dma_error:
	if (BNXT_TX_PTP_IS_SET(lflags))
		atomic_inc(&bp->ptp_cfg->tx_avail);

	last_frag = i;

	/* start back at beginning and unmap skb */
	prod = txr->tx_prod;
	tx_buf = &txr->tx_buf_ring[prod];
	dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
			 skb_headlen(skb), DMA_TO_DEVICE);
	prod = NEXT_TX(prod);

	/* unmap remaining mapped pages */
	for (i = 0; i < last_frag; i++) {
		prod = NEXT_TX(prod);
		tx_buf = &txr->tx_buf_ring[prod];
		dma_unmap_page(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
			       skb_frag_size(&skb_shinfo(skb)->frags[i]),
			       DMA_TO_DEVICE);
	}

tx_free:
	dev_kfree_skb_any(skb);
tx_kick_pending:
	if (txr->kick_pending)
		bnxt_txr_db_kick(bp, txr, txr->tx_prod);
	txr->tx_buf_ring[txr->tx_prod].skb = NULL;
	atomic_long_inc(&dev->tx_dropped);
	return NETDEV_TX_OK;
}

static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts)
{
	struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
	struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, txr->txq_index);
	u16 cons = txr->tx_cons;
	struct pci_dev *pdev = bp->pdev;
	int i;
	unsigned int tx_bytes = 0;

	for (i = 0; i < nr_pkts; i++) {
		struct bnxt_sw_tx_bd *tx_buf;
		bool compl_deferred = false;
		struct sk_buff *skb;
		int j, last;

		tx_buf = &txr->tx_buf_ring[cons];
		cons = NEXT_TX(cons);
		skb = tx_buf->skb;
		tx_buf->skb = NULL;

		if (tx_buf->is_push) {
			tx_buf->is_push = 0;
			goto next_tx_int;
		}

		dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping),
				 skb_headlen(skb), DMA_TO_DEVICE);
		last = tx_buf->nr_frags;

		for (j = 0; j < last; j++) {
			cons = NEXT_TX(cons);
			tx_buf = &txr->tx_buf_ring[cons];
			dma_unmap_page(
				&pdev->dev,
				dma_unmap_addr(tx_buf, mapping),
				skb_frag_size(&skb_shinfo(skb)->frags[j]),
				DMA_TO_DEVICE);
		}
		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS)) {
			if (bp->flags & BNXT_FLAG_CHIP_P5) {
				if (!bnxt_get_tx_ts_p5(bp, skb))
					compl_deferred = true;
				else
					atomic_inc(&bp->ptp_cfg->tx_avail);
			}
		}

next_tx_int:
		cons = NEXT_TX(cons);

		tx_bytes += skb->len;
		if (!compl_deferred)
			dev_kfree_skb_any(skb);
	}

	netdev_tx_completed_queue(txq, nr_pkts, tx_bytes);
	txr->tx_cons = cons;

	/* Need to make the tx_cons update visible to bnxt_start_xmit()
	 * before checking for netif_tx_queue_stopped().  Without the
	 * memory barrier, there is a small possibility that bnxt_start_xmit()
	 * will miss it and cause the queue to be stopped forever.
	 */
	smp_mb();

	if (unlikely(netif_tx_queue_stopped(txq)) &&
	    bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh &&
	    READ_ONCE(txr->dev_state) != BNXT_DEV_STATE_CLOSING)
		netif_tx_wake_queue(txq);
}

static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping,
					 struct bnxt_rx_ring_info *rxr,
					 gfp_t gfp)
{
	struct device *dev = &bp->pdev->dev;
	struct page *page;

	page = page_pool_dev_alloc_pages(rxr->page_pool);
	if (!page)
		return NULL;

	*mapping = dma_map_page_attrs(dev, page, 0, PAGE_SIZE, bp->rx_dir,
				      DMA_ATTR_WEAK_ORDERING);
	if (dma_mapping_error(dev, *mapping)) {
		page_pool_recycle_direct(rxr->page_pool, page);
		return NULL;
	}
	*mapping += bp->rx_dma_offset;
	return page;
}

static inline u8 *__bnxt_alloc_rx_data(struct bnxt *bp, dma_addr_t *mapping,
				       gfp_t gfp)
{
	u8 *data;
	struct pci_dev *pdev = bp->pdev;

	data = kmalloc(bp->rx_buf_size, gfp);
	if (!data)
		return NULL;

	*mapping = dma_map_single_attrs(&pdev->dev, data + bp->rx_dma_offset,
					bp->rx_buf_use_size, bp->rx_dir,
					DMA_ATTR_WEAK_ORDERING);

	if (dma_mapping_error(&pdev->dev, *mapping)) {
		kfree(data);
		data = NULL;
	}
	return data;
}

int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
		       u16 prod, gfp_t gfp)
{
	struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
	struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod];
	dma_addr_t mapping;

	if (BNXT_RX_PAGE_MODE(bp)) {
		struct page *page =
			__bnxt_alloc_rx_page(bp, &mapping, rxr, gfp);

		if (!page)
			return -ENOMEM;

		rx_buf->data = page;
		rx_buf->data_ptr = page_address(page) + bp->rx_offset;
	} else {
		u8 *data = __bnxt_alloc_rx_data(bp, &mapping, gfp);

		if (!data)
			return -ENOMEM;

		rx_buf->data = data;
		rx_buf->data_ptr = data + bp->rx_offset;
	}
	rx_buf->mapping = mapping;

	rxbd->rx_bd_haddr = cpu_to_le64(mapping);
	return 0;
}

void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data)
{
	u16 prod = rxr->rx_prod;
	struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
	struct rx_bd *cons_bd, *prod_bd;

	prod_rx_buf = &rxr->rx_buf_ring[prod];
	cons_rx_buf = &rxr->rx_buf_ring[cons];

	prod_rx_buf->data = data;
	prod_rx_buf->data_ptr = cons_rx_buf->data_ptr;

	prod_rx_buf->mapping = cons_rx_buf->mapping;

	prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
	cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)];

	prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr;
}

static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx)
{
	u16 next, max = rxr->rx_agg_bmap_size;

	next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx);
	if (next >= max)
		next = find_first_zero_bit(rxr->rx_agg_bmap, max);
	return next;
}

static inline int bnxt_alloc_rx_page(struct bnxt *bp,
				     struct bnxt_rx_ring_info *rxr,
				     u16 prod, gfp_t gfp)
{
	struct rx_bd *rxbd =
		&rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
	struct bnxt_sw_rx_agg_bd *rx_agg_buf;
	struct pci_dev *pdev = bp->pdev;
	struct page *page;
	dma_addr_t mapping;
	u16 sw_prod = rxr->rx_sw_agg_prod;
	unsigned int offset = 0;

	if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) {
		page = rxr->rx_page;
		if (!page) {
			page = alloc_page(gfp);
			if (!page)
				return -ENOMEM;
			rxr->rx_page = page;
			rxr->rx_page_offset = 0;
		}
		offset = rxr->rx_page_offset;
		rxr->rx_page_offset += BNXT_RX_PAGE_SIZE;
		if (rxr->rx_page_offset == PAGE_SIZE)
			rxr->rx_page = NULL;
		else
			get_page(page);
	} else {
		page = alloc_page(gfp);
		if (!page)
			return -ENOMEM;
	}

	mapping = dma_map_page_attrs(&pdev->dev, page, offset,
				     BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE,
				     DMA_ATTR_WEAK_ORDERING);
	if (dma_mapping_error(&pdev->dev, mapping)) {
		__free_page(page);
		return -EIO;
	}

	if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
		sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);

	__set_bit(sw_prod, rxr->rx_agg_bmap);
	rx_agg_buf = &rxr->rx_agg_ring[sw_prod];
	rxr->rx_sw_agg_prod = NEXT_RX_AGG(sw_prod);

	rx_agg_buf->page = page;
	rx_agg_buf->offset = offset;
	rx_agg_buf->mapping = mapping;
	rxbd->rx_bd_haddr = cpu_to_le64(mapping);
	rxbd->rx_bd_opaque = sw_prod;
	return 0;
}

static struct rx_agg_cmp *bnxt_get_agg(struct bnxt *bp,
				       struct bnxt_cp_ring_info *cpr,
				       u16 cp_cons, u16 curr)
{
	struct rx_agg_cmp *agg;

	cp_cons = RING_CMP(ADV_RAW_CMP(cp_cons, curr));
	agg = (struct rx_agg_cmp *)
		&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];
	return agg;
}

static struct rx_agg_cmp *bnxt_get_tpa_agg_p5(struct bnxt *bp,
					      struct bnxt_rx_ring_info *rxr,
					      u16 agg_id, u16 curr)
{
	struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[agg_id];

	return &tpa_info->agg_arr[curr];
}

static void bnxt_reuse_rx_agg_bufs(struct bnxt_cp_ring_info *cpr, u16 idx,
				   u16 start, u32 agg_bufs, bool tpa)
{
	struct bnxt_napi *bnapi = cpr->bnapi;
	struct bnxt *bp = bnapi->bp;
	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
	u16 prod = rxr->rx_agg_prod;
	u16 sw_prod = rxr->rx_sw_agg_prod;
	bool p5_tpa = false;
	u32 i;

	if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa)
		p5_tpa = true;

	for (i = 0; i < agg_bufs; i++) {
		u16 cons;
		struct rx_agg_cmp *agg;
		struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf;
		struct rx_bd *prod_bd;
		struct page *page;

		if (p5_tpa)
			agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, start + i);
		else
			agg = bnxt_get_agg(bp, cpr, idx, start + i);
		cons = agg->rx_agg_cmp_opaque;
		__clear_bit(cons, rxr->rx_agg_bmap);

		if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap)))
			sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod);

		__set_bit(sw_prod, rxr->rx_agg_bmap);
		prod_rx_buf = &rxr->rx_agg_ring[sw_prod];
		cons_rx_buf = &rxr->rx_agg_ring[cons];

		/* It is possible for sw_prod to be equal to cons, so
		 * set cons_rx_buf->page to NULL first.
		 */
		page = cons_rx_buf->page;
		cons_rx_buf->page = NULL;
		prod_rx_buf->page = page;
		prod_rx_buf->offset = cons_rx_buf->offset;

		prod_rx_buf->mapping = cons_rx_buf->mapping;

		prod_bd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)];

		prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping);
		prod_bd->rx_bd_opaque = sw_prod;

		prod = NEXT_RX_AGG(prod);
		sw_prod = NEXT_RX_AGG(sw_prod);
	}
	rxr->rx_agg_prod = prod;
	rxr->rx_sw_agg_prod = sw_prod;
}

static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp,
					struct bnxt_rx_ring_info *rxr,
					u16 cons, void *data, u8 *data_ptr,
					dma_addr_t dma_addr,
					unsigned int offset_and_len)
{
	unsigned int payload = offset_and_len >> 16;
	unsigned int len = offset_and_len & 0xffff;
	skb_frag_t *frag;
	struct page *page = data;
	u16 prod = rxr->rx_prod;
	struct sk_buff *skb;
	int off, err;

	err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
	if (unlikely(err)) {
		bnxt_reuse_rx_data(rxr, cons, data);
		return NULL;
	}
	dma_addr -= bp->rx_dma_offset;
	dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir,
			     DMA_ATTR_WEAK_ORDERING);
	page_pool_release_page(rxr->page_pool, page);

	if (unlikely(!payload))
		payload = eth_get_headlen(bp->dev, data_ptr, len);

	skb = napi_alloc_skb(&rxr->bnapi->napi, payload);
	if (!skb) {
		__free_page(page);
		return NULL;
	}

	off = (void *)data_ptr - page_address(page);
	skb_add_rx_frag(skb, 0, page, off, len, PAGE_SIZE);
	memcpy(skb->data - NET_IP_ALIGN, data_ptr - NET_IP_ALIGN,
	       payload + NET_IP_ALIGN);

	frag = &skb_shinfo(skb)->frags[0];
	skb_frag_size_sub(frag, payload);
	skb_frag_off_add(frag, payload);
	skb->data_len -= payload;
	skb->tail += payload;

	return skb;
}

static struct sk_buff *bnxt_rx_skb(struct bnxt *bp,
				   struct bnxt_rx_ring_info *rxr, u16 cons,
				   void *data, u8 *data_ptr,
				   dma_addr_t dma_addr,
				   unsigned int offset_and_len)
{
	u16 prod = rxr->rx_prod;
	struct sk_buff *skb;
	int err;

	err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
	if (unlikely(err)) {
		bnxt_reuse_rx_data(rxr, cons, data);
		return NULL;
	}

	skb = build_skb(data, 0);
	dma_unmap_single_attrs(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
			       bp->rx_dir, DMA_ATTR_WEAK_ORDERING);
	if (!skb) {
		kfree(data);
		return NULL;
	}

	skb_reserve(skb, bp->rx_offset);
	skb_put(skb, offset_and_len & 0xffff);
	return skb;
}

static struct sk_buff *bnxt_rx_pages(struct bnxt *bp,
				     struct bnxt_cp_ring_info *cpr,
				     struct sk_buff *skb, u16 idx,
				     u32 agg_bufs, bool tpa)
{
	struct bnxt_napi *bnapi = cpr->bnapi;
	struct pci_dev *pdev = bp->pdev;
	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
	u16 prod = rxr->rx_agg_prod;
	bool p5_tpa = false;
	u32 i;

	if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa)
		p5_tpa = true;

	for (i = 0; i < agg_bufs; i++) {
		u16 cons, frag_len;
		struct rx_agg_cmp *agg;
		struct bnxt_sw_rx_agg_bd *cons_rx_buf;
		struct page *page;
		dma_addr_t mapping;

		if (p5_tpa)
			agg = bnxt_get_tpa_agg_p5(bp, rxr, idx, i);
		else
			agg = bnxt_get_agg(bp, cpr, idx, i);
		cons = agg->rx_agg_cmp_opaque;
		frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) &
			    RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT;

		cons_rx_buf = &rxr->rx_agg_ring[cons];
		skb_fill_page_desc(skb, i, cons_rx_buf->page,
				   cons_rx_buf->offset, frag_len);
		__clear_bit(cons, rxr->rx_agg_bmap);

		/* It is possible for bnxt_alloc_rx_page() to allocate
		 * a sw_prod index that equals the cons index, so we
		 * need to clear the cons entry now.
		 */
		mapping = cons_rx_buf->mapping;
		page = cons_rx_buf->page;
		cons_rx_buf->page = NULL;

		if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) {
			struct skb_shared_info *shinfo;
			unsigned int nr_frags;

			shinfo = skb_shinfo(skb);
			nr_frags = --shinfo->nr_frags;
			__skb_frag_set_page(&shinfo->frags[nr_frags], NULL);

			dev_kfree_skb(skb);

			cons_rx_buf->page = page;

			/* Update prod since possibly some pages have been
			 * allocated already.
			 */
			rxr->rx_agg_prod = prod;
			bnxt_reuse_rx_agg_bufs(cpr, idx, i, agg_bufs - i, tpa);
			return NULL;
		}

		dma_unmap_page_attrs(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE,
				     DMA_FROM_DEVICE,
				     DMA_ATTR_WEAK_ORDERING);

		skb->data_len += frag_len;
		skb->len += frag_len;
		skb->truesize += PAGE_SIZE;

		prod = NEXT_RX_AGG(prod);
	}
	rxr->rx_agg_prod = prod;
	return skb;
}

static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
			       u8 agg_bufs, u32 *raw_cons)
{
	u16 last;
	struct rx_agg_cmp *agg;

	*raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs);
	last = RING_CMP(*raw_cons);
	agg = (struct rx_agg_cmp *)
		&cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)];
	return RX_AGG_CMP_VALID(agg, *raw_cons);
}

static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data,
					    unsigned int len,
					    dma_addr_t mapping)
{
	struct bnxt *bp = bnapi->bp;
	struct pci_dev *pdev = bp->pdev;
	struct sk_buff *skb;

	skb = napi_alloc_skb(&bnapi->napi, len);
	if (!skb)
		return NULL;

	dma_sync_single_for_cpu(&pdev->dev, mapping, bp->rx_copy_thresh,
				bp->rx_dir);

	memcpy(skb->data - NET_IP_ALIGN, data - NET_IP_ALIGN,
	       len + NET_IP_ALIGN);

	dma_sync_single_for_device(&pdev->dev, mapping, bp->rx_copy_thresh,
				   bp->rx_dir);

	skb_put(skb, len);
	return skb;
}

static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
			   u32 *raw_cons, void *cmp)
{
	struct rx_cmp *rxcmp = cmp;
	u32 tmp_raw_cons = *raw_cons;
	u8 cmp_type, agg_bufs = 0;

	cmp_type = RX_CMP_TYPE(rxcmp);

	if (cmp_type == CMP_TYPE_RX_L2_CMP) {
		agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) &
			    RX_CMP_AGG_BUFS) >>
			   RX_CMP_AGG_BUFS_SHIFT;
	} else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
		struct rx_tpa_end_cmp *tpa_end = cmp;

		if (bp->flags & BNXT_FLAG_CHIP_P5)
			return 0;

		agg_bufs = TPA_END_AGG_BUFS(tpa_end);
	}

	if (agg_bufs) {
		if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons))
			return -EBUSY;
	}
	*raw_cons = tmp_raw_cons;
	return 0;
}

static void bnxt_queue_fw_reset_work(struct bnxt *bp, unsigned long delay)
{
	if (!(test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)))
		return;

	if (BNXT_PF(bp))
		queue_delayed_work(bnxt_pf_wq, &bp->fw_reset_task, delay);
	else
		schedule_delayed_work(&bp->fw_reset_task, delay);
}

static void bnxt_queue_sp_work(struct bnxt *bp)
{
	if (BNXT_PF(bp))
		queue_work(bnxt_pf_wq, &bp->sp_task);
	else
		schedule_work(&bp->sp_task);
}

static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr)
{
	if (!rxr->bnapi->in_reset) {
		rxr->bnapi->in_reset = true;
		if (bp->flags & BNXT_FLAG_CHIP_P5)
			set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
		else
			set_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event);
		bnxt_queue_sp_work(bp);
	}
	rxr->rx_next_cons = 0xffff;
}

static u16 bnxt_alloc_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id)
{
	struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;
	u16 idx = agg_id & MAX_TPA_P5_MASK;

	if (test_bit(idx, map->agg_idx_bmap))
		idx = find_first_zero_bit(map->agg_idx_bmap,
					  BNXT_AGG_IDX_BMAP_SIZE);
	__set_bit(idx, map->agg_idx_bmap);
	map->agg_id_tbl[agg_id] = idx;
	return idx;
}

static void bnxt_free_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx)
{
	struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;

	__clear_bit(idx, map->agg_idx_bmap);
}

static u16 bnxt_lookup_agg_idx(struct bnxt_rx_ring_info *rxr, u16 agg_id)
{
	struct bnxt_tpa_idx_map *map = rxr->rx_tpa_idx_map;

	return map->agg_id_tbl[agg_id];
}

static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
			   struct rx_tpa_start_cmp *tpa_start,
			   struct rx_tpa_start_cmp_ext *tpa_start1)
{
	struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf;
	struct bnxt_tpa_info *tpa_info;
	u16 cons, prod, agg_id;
	struct rx_bd *prod_bd;
	dma_addr_t mapping;

	if (bp->flags & BNXT_FLAG_CHIP_P5) {
		agg_id = TPA_START_AGG_ID_P5(tpa_start);
		agg_id = bnxt_alloc_agg_idx(rxr, agg_id);
	} else {
		agg_id = TPA_START_AGG_ID(tpa_start);
	}
	cons = tpa_start->rx_tpa_start_cmp_opaque;
	prod = rxr->rx_prod;
	cons_rx_buf = &rxr->rx_buf_ring[cons];
	prod_rx_buf = &rxr->rx_buf_ring[prod];
	tpa_info = &rxr->rx_tpa[agg_id];

	if (unlikely(cons != rxr->rx_next_cons ||
		     TPA_START_ERROR(tpa_start))) {
		netdev_warn(bp->dev, "TPA cons %x, expected cons %x, error code %x\n",
			    cons, rxr->rx_next_cons,
			    TPA_START_ERROR_CODE(tpa_start1));
		bnxt_sched_reset(bp, rxr);
		return;
	}
	/* Store cfa_code in tpa_info to use in tpa_end
	 * completion processing.
	 */
	tpa_info->cfa_code = TPA_START_CFA_CODE(tpa_start1);
	prod_rx_buf->data = tpa_info->data;
	prod_rx_buf->data_ptr = tpa_info->data_ptr;

	mapping = tpa_info->mapping;
	prod_rx_buf->mapping = mapping;

	prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];

	prod_bd->rx_bd_haddr = cpu_to_le64(mapping);

	tpa_info->data = cons_rx_buf->data;
	tpa_info->data_ptr = cons_rx_buf->data_ptr;
	cons_rx_buf->data = NULL;
	tpa_info->mapping = cons_rx_buf->mapping;

	tpa_info->len =
		le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >>
				RX_TPA_START_CMP_LEN_SHIFT;
	if (likely(TPA_START_HASH_VALID(tpa_start))) {
		u32 hash_type = TPA_START_HASH_TYPE(tpa_start);

		tpa_info->hash_type = PKT_HASH_TYPE_L4;
		tpa_info->gso_type = SKB_GSO_TCPV4;
		/* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
		if (hash_type == 3 || TPA_START_IS_IPV6(tpa_start1))
			tpa_info->gso_type = SKB_GSO_TCPV6;
		tpa_info->rss_hash =
			le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash);
	} else {
		tpa_info->hash_type = PKT_HASH_TYPE_NONE;
		tpa_info->gso_type = 0;
		netif_warn(bp, rx_err, bp->dev, "TPA packet without valid hash\n");
	}
	tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2);
	tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata);
	tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info);
	tpa_info->agg_count = 0;

	rxr->rx_prod = NEXT_RX(prod);
	cons = NEXT_RX(cons);
	rxr->rx_next_cons = NEXT_RX(cons);
	cons_rx_buf = &rxr->rx_buf_ring[cons];

	bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data);
	rxr->rx_prod = NEXT_RX(rxr->rx_prod);
	cons_rx_buf->data = NULL;
}

static void bnxt_abort_tpa(struct bnxt_cp_ring_info *cpr, u16 idx, u32 agg_bufs)
{
	if (agg_bufs)
		bnxt_reuse_rx_agg_bufs(cpr, idx, 0, agg_bufs, true);
}

#ifdef CONFIG_INET
static void bnxt_gro_tunnel(struct sk_buff *skb, __be16 ip_proto)
{
	struct udphdr *uh = NULL;

	if (ip_proto == htons(ETH_P_IP)) {
		struct iphdr *iph = (struct iphdr *)skb->data;

		if (iph->protocol == IPPROTO_UDP)
			uh = (struct udphdr *)(iph + 1);
	} else {
		struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;

		if (iph->nexthdr == IPPROTO_UDP)
			uh = (struct udphdr *)(iph + 1);
	}
	if (uh) {
		if (uh->check)
			skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL_CSUM;
		else
			skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
	}
}
#endif

static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info,
					   int payload_off, int tcp_ts,
					   struct sk_buff *skb)
{
#ifdef CONFIG_INET
	struct tcphdr *th;
	int len, nw_off;
	u16 outer_ip_off, inner_ip_off, inner_mac_off;
	u32 hdr_info = tpa_info->hdr_info;
	bool loopback = false;

	inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info);
	inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info);
	outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info);

	/* If the packet is an internal loopback packet, the offsets will
	 * have an extra 4 bytes.
	 */
	if (inner_mac_off == 4) {
		loopback = true;
	} else if (inner_mac_off > 4) {
		__be16 proto = *((__be16 *)(skb->data + inner_ip_off -
					    ETH_HLEN - 2));

		/* We only support inner iPv4/ipv6.  If we don't see the
		 * correct protocol ID, it must be a loopback packet where
		 * the offsets are off by 4.
		 */
		if (proto != htons(ETH_P_IP) && proto != htons(ETH_P_IPV6))
			loopback = true;
	}
	if (loopback) {
		/* internal loopback packet, subtract all offsets by 4 */
		inner_ip_off -= 4;
		inner_mac_off -= 4;
		outer_ip_off -= 4;
	}

	nw_off = inner_ip_off - ETH_HLEN;
	skb_set_network_header(skb, nw_off);
	if (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) {
		struct ipv6hdr *iph = ipv6_hdr(skb);

		skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr));
		len = skb->len - skb_transport_offset(skb);
		th = tcp_hdr(skb);
		th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
	} else {
		struct iphdr *iph = ip_hdr(skb);

		skb_set_transport_header(skb, nw_off + sizeof(struct iphdr));
		len = skb->len - skb_transport_offset(skb);
		th = tcp_hdr(skb);
		th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0);
	}

	if (inner_mac_off) { /* tunnel */
		__be16 proto = *((__be16 *)(skb->data + outer_ip_off -
					    ETH_HLEN - 2));

		bnxt_gro_tunnel(skb, proto);
	}
#endif
	return skb;
}

static struct sk_buff *bnxt_gro_func_5750x(struct bnxt_tpa_info *tpa_info,
					   int payload_off, int tcp_ts,
					   struct sk_buff *skb)
{
#ifdef CONFIG_INET
	u16 outer_ip_off, inner_ip_off, inner_mac_off;
	u32 hdr_info = tpa_info->hdr_info;
	int iphdr_len, nw_off;

	inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info);
	inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info);
	outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info);

	nw_off = inner_ip_off - ETH_HLEN;
	skb_set_network_header(skb, nw_off);
	iphdr_len = (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) ?
		     sizeof(struct ipv6hdr) : sizeof(struct iphdr);
	skb_set_transport_header(skb, nw_off + iphdr_len);

	if (inner_mac_off) { /* tunnel */
		__be16 proto = *((__be16 *)(skb->data + outer_ip_off -
					    ETH_HLEN - 2));

		bnxt_gro_tunnel(skb, proto);
	}
#endif
	return skb;
}

#define BNXT_IPV4_HDR_SIZE	(sizeof(struct iphdr) + sizeof(struct tcphdr))
#define BNXT_IPV6_HDR_SIZE	(sizeof(struct ipv6hdr) + sizeof(struct tcphdr))

static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info,
					   int payload_off, int tcp_ts,
					   struct sk_buff *skb)
{
#ifdef CONFIG_INET
	struct tcphdr *th;
	int len, nw_off, tcp_opt_len = 0;

	if (tcp_ts)
		tcp_opt_len = 12;

	if (tpa_info->gso_type == SKB_GSO_TCPV4) {
		struct iphdr *iph;

		nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len -
			 ETH_HLEN;
		skb_set_network_header(skb, nw_off);
		iph = ip_hdr(skb);
		skb_set_transport_header(skb, nw_off + sizeof(struct iphdr));
		len = skb->len - skb_transport_offset(skb);
		th = tcp_hdr(skb);
		th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0);
	} else if (tpa_info->gso_type == SKB_GSO_TCPV6) {
		struct ipv6hdr *iph;

		nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len -
			 ETH_HLEN;
		skb_set_network_header(skb, nw_off);
		iph = ipv6_hdr(skb);
		skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr));
		len = skb->len - skb_transport_offset(skb);
		th = tcp_hdr(skb);
		th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0);
	} else {
		dev_kfree_skb_any(skb);
		return NULL;
	}

	if (nw_off) /* tunnel */
		bnxt_gro_tunnel(skb, skb->protocol);
#endif
	return skb;
}

static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp,
					   struct bnxt_tpa_info *tpa_info,
					   struct rx_tpa_end_cmp *tpa_end,
					   struct rx_tpa_end_cmp_ext *tpa_end1,
					   struct sk_buff *skb)
{
#ifdef CONFIG_INET
	int payload_off;
	u16 segs;

	segs = TPA_END_TPA_SEGS(tpa_end);
	if (segs == 1)
		return skb;

	NAPI_GRO_CB(skb)->count = segs;
	skb_shinfo(skb)->gso_size =
		le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len);
	skb_shinfo(skb)->gso_type = tpa_info->gso_type;
	if (bp->flags & BNXT_FLAG_CHIP_P5)
		payload_off = TPA_END_PAYLOAD_OFF_P5(tpa_end1);
	else
		payload_off = TPA_END_PAYLOAD_OFF(tpa_end);
	skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb);
	if (likely(skb))
		tcp_gro_complete(skb);
#endif
	return skb;
}

/* Given the cfa_code of a received packet determine which
 * netdev (vf-rep or PF) the packet is destined to.
 */
static struct net_device *bnxt_get_pkt_dev(struct bnxt *bp, u16 cfa_code)
{
	struct net_device *dev = bnxt_get_vf_rep(bp, cfa_code);

	/* if vf-rep dev is NULL, the must belongs to the PF */
	return dev ? dev : bp->dev;
}

static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp,
					   struct bnxt_cp_ring_info *cpr,
					   u32 *raw_cons,
					   struct rx_tpa_end_cmp *tpa_end,
					   struct rx_tpa_end_cmp_ext *tpa_end1,
					   u8 *event)
{
	struct bnxt_napi *bnapi = cpr->bnapi;
	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
	u8 *data_ptr, agg_bufs;
	unsigned int len;
	struct bnxt_tpa_info *tpa_info;
	dma_addr_t mapping;
	struct sk_buff *skb;
	u16 idx = 0, agg_id;
	void *data;
	bool gro;

	if (unlikely(bnapi->in_reset)) {
		int rc = bnxt_discard_rx(bp, cpr, raw_cons, tpa_end);

		if (rc < 0)
			return ERR_PTR(-EBUSY);
		return NULL;
	}

	if (bp->flags & BNXT_FLAG_CHIP_P5) {
		agg_id = TPA_END_AGG_ID_P5(tpa_end);
		agg_id = bnxt_lookup_agg_idx(rxr, agg_id);
		agg_bufs = TPA_END_AGG_BUFS_P5(tpa_end1);
		tpa_info = &rxr->rx_tpa[agg_id];
		if (unlikely(agg_bufs != tpa_info->agg_count)) {
			netdev_warn(bp->dev, "TPA end agg_buf %d != expected agg_bufs %d\n",
				    agg_bufs, tpa_info->agg_count);
			agg_bufs = tpa_info->agg_count;
		}
		tpa_info->agg_count = 0;
		*event |= BNXT_AGG_EVENT;
		bnxt_free_agg_idx(rxr, agg_id);
		idx = agg_id;
		gro = !!(bp->flags & BNXT_FLAG_GRO);
	} else {
		agg_id = TPA_END_AGG_ID(tpa_end);
		agg_bufs = TPA_END_AGG_BUFS(tpa_end);
		tpa_info = &rxr->rx_tpa[agg_id];
		idx = RING_CMP(*raw_cons);
		if (agg_bufs) {
			if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons))
				return ERR_PTR(-EBUSY);

			*event |= BNXT_AGG_EVENT;
			idx = NEXT_CMP(idx);
		}
		gro = !!TPA_END_GRO(tpa_end);
	}
	data = tpa_info->data;
	data_ptr = tpa_info->data_ptr;
	prefetch(data_ptr);
	len = tpa_info->len;
	mapping = tpa_info->mapping;

	if (unlikely(agg_bufs > MAX_SKB_FRAGS || TPA_END_ERRORS(tpa_end1))) {
		bnxt_abort_tpa(cpr, idx, agg_bufs);
		if (agg_bufs > MAX_SKB_FRAGS)
			netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n",
				    agg_bufs, (int)MAX_SKB_FRAGS);
		return NULL;
	}

	if (len <= bp->rx_copy_thresh) {
		skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping);
		if (!skb) {
			bnxt_abort_tpa(cpr, idx, agg_bufs);
			cpr->sw_stats.rx.rx_oom_discards += 1;
			return NULL;
		}
	} else {
		u8 *new_data;
		dma_addr_t new_mapping;

		new_data = __bnxt_alloc_rx_data(bp, &new_mapping, GFP_ATOMIC);
		if (!new_data) {
			bnxt_abort_tpa(cpr, idx, agg_bufs);
			cpr->sw_stats.rx.rx_oom_discards += 1;
			return NULL;
		}

		tpa_info->data = new_data;
		tpa_info->data_ptr = new_data + bp->rx_offset;
		tpa_info->mapping = new_mapping;

		skb = build_skb(data, 0);
		dma_unmap_single_attrs(&bp->pdev->dev, mapping,
				       bp->rx_buf_use_size, bp->rx_dir,
				       DMA_ATTR_WEAK_ORDERING);

		if (!skb) {
			kfree(data);
			bnxt_abort_tpa(cpr, idx, agg_bufs);
			cpr->sw_stats.rx.rx_oom_discards += 1;
			return NULL;
		}
		skb_reserve(skb, bp->rx_offset);
		skb_put(skb, len);
	}

	if (agg_bufs) {
		skb = bnxt_rx_pages(bp, cpr, skb, idx, agg_bufs, true);
		if (!skb) {
			/* Page reuse already handled by bnxt_rx_pages(). */
			cpr->sw_stats.rx.rx_oom_discards += 1;
			return NULL;
		}
	}

	skb->protocol =
		eth_type_trans(skb, bnxt_get_pkt_dev(bp, tpa_info->cfa_code));

	if (tpa_info->hash_type != PKT_HASH_TYPE_NONE)
		skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type);

	if ((tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) &&
	    (skb->dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)) {
		__be16 vlan_proto = htons(tpa_info->metadata >>
					  RX_CMP_FLAGS2_METADATA_TPID_SFT);
		u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_TCI_MASK;

		if (eth_type_vlan(vlan_proto)) {
			__vlan_hwaccel_put_tag(skb, vlan_proto, vtag);
		} else {
			dev_kfree_skb(skb);
			return NULL;
		}
	}

	skb_checksum_none_assert(skb);
	if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) {
		skb->ip_summed = CHECKSUM_UNNECESSARY;
		skb->csum_level =
			(tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3;
	}

	if (gro)
		skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb);

	return skb;
}

static void bnxt_tpa_agg(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
			 struct rx_agg_cmp *rx_agg)
{
	u16 agg_id = TPA_AGG_AGG_ID(rx_agg);
	struct bnxt_tpa_info *tpa_info;

	agg_id = bnxt_lookup_agg_idx(rxr, agg_id);
	tpa_info = &rxr->rx_tpa[agg_id];
	BUG_ON(tpa_info->agg_count >= MAX_SKB_FRAGS);
	tpa_info->agg_arr[tpa_info->agg_count++] = *rx_agg;
}

static void bnxt_deliver_skb(struct bnxt *bp, struct bnxt_napi *bnapi,
			     struct sk_buff *skb)
{
	if (skb->dev != bp->dev) {
		/* this packet belongs to a vf-rep */
		bnxt_vf_rep_rx(bp, skb);
		return;
	}
	skb_record_rx_queue(skb, bnapi->index);
	napi_gro_receive(&bnapi->napi, skb);
}

/* returns the following:
 * 1       - 1 packet successfully received
 * 0       - successful TPA_START, packet not completed yet
 * -EBUSY  - completion ring does not have all the agg buffers yet
 * -ENOMEM - packet aborted due to out of memory
 * -EIO    - packet aborted due to hw error indicated in BD
 */
static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
		       u32 *raw_cons, u8 *event)
{
	struct bnxt_napi *bnapi = cpr->bnapi;
	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
	struct net_device *dev = bp->dev;
	struct rx_cmp *rxcmp;
	struct rx_cmp_ext *rxcmp1;
	u32 tmp_raw_cons = *raw_cons;
	u16 cfa_code, cons, prod, cp_cons = RING_CMP(tmp_raw_cons);
	struct bnxt_sw_rx_bd *rx_buf;
	unsigned int len;
	u8 *data_ptr, agg_bufs, cmp_type;
	dma_addr_t dma_addr;
	struct sk_buff *skb;
	u32 flags, misc;
	void *data;
	int rc = 0;

	rxcmp = (struct rx_cmp *)
			&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];

	cmp_type = RX_CMP_TYPE(rxcmp);

	if (cmp_type == CMP_TYPE_RX_TPA_AGG_CMP) {
		bnxt_tpa_agg(bp, rxr, (struct rx_agg_cmp *)rxcmp);
		goto next_rx_no_prod_no_len;
	}

	tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
	cp_cons = RING_CMP(tmp_raw_cons);
	rxcmp1 = (struct rx_cmp_ext *)
			&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];

	if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
		return -EBUSY;

	/* The valid test of the entry must be done first before
	 * reading any further.
	 */
	dma_rmb();
	prod = rxr->rx_prod;

	if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) {
		bnxt_tpa_start(bp, rxr, (struct rx_tpa_start_cmp *)rxcmp,
			       (struct rx_tpa_start_cmp_ext *)rxcmp1);

		*event |= BNXT_RX_EVENT;
		goto next_rx_no_prod_no_len;

	} else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
		skb = bnxt_tpa_end(bp, cpr, &tmp_raw_cons,
				   (struct rx_tpa_end_cmp *)rxcmp,
				   (struct rx_tpa_end_cmp_ext *)rxcmp1, event);

		if (IS_ERR(skb))
			return -EBUSY;

		rc = -ENOMEM;
		if (likely(skb)) {
			bnxt_deliver_skb(bp, bnapi, skb);
			rc = 1;
		}
		*event |= BNXT_RX_EVENT;
		goto next_rx_no_prod_no_len;
	}

	cons = rxcmp->rx_cmp_opaque;
	if (unlikely(cons != rxr->rx_next_cons)) {
		int rc1 = bnxt_discard_rx(bp, cpr, &tmp_raw_cons, rxcmp);

		/* 0xffff is forced error, don't print it */
		if (rxr->rx_next_cons != 0xffff)
			netdev_warn(bp->dev, "RX cons %x != expected cons %x\n",
				    cons, rxr->rx_next_cons);
		bnxt_sched_reset(bp, rxr);
		if (rc1)
			return rc1;
		goto next_rx_no_prod_no_len;
	}
	rx_buf = &rxr->rx_buf_ring[cons];
	data = rx_buf->data;
	data_ptr = rx_buf->data_ptr;
	prefetch(data_ptr);

	misc = le32_to_cpu(rxcmp->rx_cmp_misc_v1);
	agg_bufs = (misc & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT;

	if (agg_bufs) {
		if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons))
			return -EBUSY;

		cp_cons = NEXT_CMP(cp_cons);
		*event |= BNXT_AGG_EVENT;
	}
	*event |= BNXT_RX_EVENT;

	rx_buf->data = NULL;
	if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) {
		u32 rx_err = le32_to_cpu(rxcmp1->rx_cmp_cfa_code_errors_v2);

		bnxt_reuse_rx_data(rxr, cons, data);
		if (agg_bufs)
			bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0, agg_bufs,
					       false);

		rc = -EIO;
		if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) {
			bnapi->cp_ring.sw_stats.rx.rx_buf_errors++;
			if (!(bp->flags & BNXT_FLAG_CHIP_P5) &&
			    !(bp->fw_cap & BNXT_FW_CAP_RING_MONITOR)) {
				netdev_warn_once(bp->dev, "RX buffer error %x\n",
						 rx_err);
				bnxt_sched_reset(bp, rxr);
			}
		}
		goto next_rx_no_len;
	}

	flags = le32_to_cpu(rxcmp->rx_cmp_len_flags_type);
	len = flags >> RX_CMP_LEN_SHIFT;
	dma_addr = rx_buf->mapping;

	if (bnxt_rx_xdp(bp, rxr, cons, data, &data_ptr, &len, event)) {
		rc = 1;
		goto next_rx;
	}

	if (len <= bp->rx_copy_thresh) {
		skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr);
		bnxt_reuse_rx_data(rxr, cons, data);
		if (!skb) {
			if (agg_bufs)
				bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0,
						       agg_bufs, false);
			cpr->sw_stats.rx.rx_oom_discards += 1;
			rc = -ENOMEM;
			goto next_rx;
		}
	} else {
		u32 payload;

		if (rx_buf->data_ptr == data_ptr)
			payload = misc & RX_CMP_PAYLOAD_OFFSET;
		else
			payload = 0;
		skb = bp->rx_skb_func(bp, rxr, cons, data, data_ptr, dma_addr,
				      payload | len);
		if (!skb) {
			cpr->sw_stats.rx.rx_oom_discards += 1;
			rc = -ENOMEM;
			goto next_rx;
		}
	}

	if (agg_bufs) {
		skb = bnxt_rx_pages(bp, cpr, skb, cp_cons, agg_bufs, false);
		if (!skb) {
			cpr->sw_stats.rx.rx_oom_discards += 1;
			rc = -ENOMEM;
			goto next_rx;
		}
	}

	if (RX_CMP_HASH_VALID(rxcmp)) {
		u32 hash_type = RX_CMP_HASH_TYPE(rxcmp);
		enum pkt_hash_types type = PKT_HASH_TYPE_L4;

		/* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */
		if (hash_type != 1 && hash_type != 3)
			type = PKT_HASH_TYPE_L3;
		skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type);
	}

	cfa_code = RX_CMP_CFA_CODE(rxcmp1);
	skb->protocol = eth_type_trans(skb, bnxt_get_pkt_dev(bp, cfa_code));

	if ((rxcmp1->rx_cmp_flags2 &
	     cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) &&
	    (skb->dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)) {
		u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data);
		u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_TCI_MASK;
		__be16 vlan_proto = htons(meta_data >>
					  RX_CMP_FLAGS2_METADATA_TPID_SFT);

		if (eth_type_vlan(vlan_proto)) {
			__vlan_hwaccel_put_tag(skb, vlan_proto, vtag);
		} else {
			dev_kfree_skb(skb);
			goto next_rx;
		}
	}

	skb_checksum_none_assert(skb);
	if (RX_CMP_L4_CS_OK(rxcmp1)) {
		if (dev->features & NETIF_F_RXCSUM) {
			skb->ip_summed = CHECKSUM_UNNECESSARY;
			skb->csum_level = RX_CMP_ENCAP(rxcmp1);
		}
	} else {
		if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) {
			if (dev->features & NETIF_F_RXCSUM)
				bnapi->cp_ring.sw_stats.rx.rx_l4_csum_errors++;
		}
	}

	if (unlikely((flags & RX_CMP_FLAGS_ITYPES_MASK) ==
		     RX_CMP_FLAGS_ITYPE_PTP_W_TS)) {
		if (bp->flags & BNXT_FLAG_CHIP_P5) {
			u32 cmpl_ts = le32_to_cpu(rxcmp1->rx_cmp_timestamp);
			u64 ns, ts;

			if (!bnxt_get_rx_ts_p5(bp, &ts, cmpl_ts)) {
				struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;

				spin_lock_bh(&ptp->ptp_lock);
				ns = timecounter_cyc2time(&ptp->tc, ts);
				spin_unlock_bh(&ptp->ptp_lock);
				memset(skb_hwtstamps(skb), 0,
				       sizeof(*skb_hwtstamps(skb)));
				skb_hwtstamps(skb)->hwtstamp = ns_to_ktime(ns);
			}
		}
	}
	bnxt_deliver_skb(bp, bnapi, skb);
	rc = 1;

next_rx:
	cpr->rx_packets += 1;
	cpr->rx_bytes += len;

next_rx_no_len:
	rxr->rx_prod = NEXT_RX(prod);
	rxr->rx_next_cons = NEXT_RX(cons);

next_rx_no_prod_no_len:
	*raw_cons = tmp_raw_cons;

	return rc;
}

/* In netpoll mode, if we are using a combined completion ring, we need to
 * discard the rx packets and recycle the buffers.
 */
static int bnxt_force_rx_discard(struct bnxt *bp,
				 struct bnxt_cp_ring_info *cpr,
				 u32 *raw_cons, u8 *event)
{
	u32 tmp_raw_cons = *raw_cons;
	struct rx_cmp_ext *rxcmp1;
	struct rx_cmp *rxcmp;
	u16 cp_cons;
	u8 cmp_type;
	int rc;

	cp_cons = RING_CMP(tmp_raw_cons);
	rxcmp = (struct rx_cmp *)
			&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];

	tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons);
	cp_cons = RING_CMP(tmp_raw_cons);
	rxcmp1 = (struct rx_cmp_ext *)
			&cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];

	if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
		return -EBUSY;

	/* The valid test of the entry must be done first before
	 * reading any further.
	 */
	dma_rmb();
	cmp_type = RX_CMP_TYPE(rxcmp);
	if (cmp_type == CMP_TYPE_RX_L2_CMP) {
		rxcmp1->rx_cmp_cfa_code_errors_v2 |=
			cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR);
	} else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) {
		struct rx_tpa_end_cmp_ext *tpa_end1;

		tpa_end1 = (struct rx_tpa_end_cmp_ext *)rxcmp1;
		tpa_end1->rx_tpa_end_cmp_errors_v2 |=
			cpu_to_le32(RX_TPA_END_CMP_ERRORS);
	}
	rc = bnxt_rx_pkt(bp, cpr, raw_cons, event);
	if (rc && rc != -EBUSY)
		cpr->sw_stats.rx.rx_netpoll_discards += 1;
	return rc;
}

u32 bnxt_fw_health_readl(struct bnxt *bp, int reg_idx)
{
	struct bnxt_fw_health *fw_health = bp->fw_health;
	u32 reg = fw_health->regs[reg_idx];
	u32 reg_type, reg_off, val = 0;

	reg_type = BNXT_FW_HEALTH_REG_TYPE(reg);
	reg_off = BNXT_FW_HEALTH_REG_OFF(reg);
	switch (reg_type) {
	case BNXT_FW_HEALTH_REG_TYPE_CFG:
		pci_read_config_dword(bp->pdev, reg_off, &val);
		break;
	case BNXT_FW_HEALTH_REG_TYPE_GRC:
		reg_off = fw_health->mapped_regs[reg_idx];
		fallthrough;
	case BNXT_FW_HEALTH_REG_TYPE_BAR0:
		val = readl(bp->bar0 + reg_off);
		break;
	case BNXT_FW_HEALTH_REG_TYPE_BAR1:
		val = readl(bp->bar1 + reg_off);
		break;
	}
	if (reg_idx == BNXT_FW_RESET_INPROG_REG)
		val &= fw_health->fw_reset_inprog_reg_mask;
	return val;
}

static u16 bnxt_agg_ring_id_to_grp_idx(struct bnxt *bp, u16 ring_id)
{
	int i;

	for (i = 0; i < bp->rx_nr_rings; i++) {
		u16 grp_idx = bp->rx_ring[i].bnapi->index;
		struct bnxt_ring_grp_info *grp_info;

		grp_info = &bp->grp_info[grp_idx];
		if (grp_info->agg_fw_ring_id == ring_id)
			return grp_idx;
	}
	return INVALID_HW_RING_ID;
}

static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2)
{
	switch (BNXT_EVENT_ERROR_REPORT_TYPE(data1)) {
	case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_INVALID_SIGNAL:
		netdev_err(bp->dev, "1PPS: Received invalid signal on pin%lu from the external source. Please fix the signal and reconfigure the pin\n",
			   BNXT_EVENT_INVALID_SIGNAL_DATA(data2));
		break;
	default:
		netdev_err(bp->dev, "FW reported unknown error type\n");
		break;
	}
}

#define BNXT_GET_EVENT_PORT(data)	\
	((data) &			\
	 ASYNC_EVENT_CMPL_PORT_CONN_NOT_ALLOWED_EVENT_DATA1_PORT_ID_MASK)

#define BNXT_EVENT_RING_TYPE(data2)	\
	((data2) &			\
	 ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_MASK)

#define BNXT_EVENT_RING_TYPE_RX(data2)	\
	(BNXT_EVENT_RING_TYPE(data2) ==	\
	 ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_RX)

static int bnxt_async_event_process(struct bnxt *bp,
				    struct hwrm_async_event_cmpl *cmpl)
{
	u16 event_id = le16_to_cpu(cmpl->event_id);
	u32 data1 = le32_to_cpu(cmpl->event_data1);
	u32 data2 = le32_to_cpu(cmpl->event_data2);

	/* TODO CHIMP_FW: Define event id's for link change, error etc */
	switch (event_id) {
	case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: {
		struct bnxt_link_info *link_info = &bp->link_info;

		if (BNXT_VF(bp))
			goto async_event_process_exit;

		/* print unsupported speed warning in forced speed mode only */
		if (!(link_info->autoneg & BNXT_AUTONEG_SPEED) &&
		    (data1 & 0x20000)) {
			u16 fw_speed = link_info->force_link_speed;
			u32 speed = bnxt_fw_to_ethtool_speed(fw_speed);

			if (speed != SPEED_UNKNOWN)
				netdev_warn(bp->dev, "Link speed %d no longer supported\n",
					    speed);
		}
		set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event);
	}
		fallthrough;
	case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
	case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE:
		set_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT, &bp->sp_event);
		fallthrough;
	case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
		set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event);
		break;
	case ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD:
		set_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event);
		break;
	case ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED: {
		u16 port_id = BNXT_GET_EVENT_PORT(data1);

		if (BNXT_VF(bp))
			break;

		if (bp->pf.port_id != port_id)
			break;

		set_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event);
		break;
	}
	case ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE:
		if (BNXT_PF(bp))
			goto async_event_process_exit;
		set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event);
		break;
	case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY: {
		char *fatal_str = "non-fatal";

		if (!bp->fw_health)
			goto async_event_process_exit;

		bp->fw_reset_timestamp = jiffies;
		bp->fw_reset_min_dsecs = cmpl->timestamp_lo;
		if (!bp->fw_reset_min_dsecs)
			bp->fw_reset_min_dsecs = BNXT_DFLT_FW_RST_MIN_DSECS;
		bp->fw_reset_max_dsecs = le16_to_cpu(cmpl->timestamp_hi);
		if (!bp->fw_reset_max_dsecs)
			bp->fw_reset_max_dsecs = BNXT_DFLT_FW_RST_MAX_DSECS;
		if (EVENT_DATA1_RESET_NOTIFY_FATAL(data1)) {
			fatal_str = "fatal";
			set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
		}
		netif_warn(bp, hw, bp->dev,
			   "Firmware %s reset event, data1: 0x%x, data2: 0x%x, min wait %u ms, max wait %u ms\n",
			   fatal_str, data1, data2,
			   bp->fw_reset_min_dsecs * 100,
			   bp->fw_reset_max_dsecs * 100);
		set_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event);
		break;
	}
	case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY: {
		struct bnxt_fw_health *fw_health = bp->fw_health;

		if (!fw_health)
			goto async_event_process_exit;

		if (!EVENT_DATA1_RECOVERY_ENABLED(data1)) {
			fw_health->enabled = false;
			netif_info(bp, drv, bp->dev,
				   "Error recovery info: error recovery[0]\n");
			break;
		}
		fw_health->master = EVENT_DATA1_RECOVERY_MASTER_FUNC(data1);
		fw_health->tmr_multiplier =
			DIV_ROUND_UP(fw_health->polling_dsecs * HZ,
				     bp->current_interval * 10);
		fw_health->tmr_counter = fw_health->tmr_multiplier;
		if (!fw_health->enabled) {
			fw_health->last_fw_heartbeat =
				bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
			fw_health->last_fw_reset_cnt =
				bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
		}
		netif_info(bp, drv, bp->dev,
			   "Error recovery info: error recovery[1], master[%d], reset count[%u], health status: 0x%x\n",
			   fw_health->master, fw_health->last_fw_reset_cnt,
			   bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG));
		if (!fw_health->enabled) {
			/* Make sure tmr_counter is set and visible to
			 * bnxt_health_check() before setting enabled to true.
			 */
			smp_wmb();
			fw_health->enabled = true;
		}
		goto async_event_process_exit;
	}
	case ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION:
		netif_notice(bp, hw, bp->dev,
			     "Received firmware debug notification, data1: 0x%x, data2: 0x%x\n",
			     data1, data2);
		goto async_event_process_exit;
	case ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG: {
		struct bnxt_rx_ring_info *rxr;
		u16 grp_idx;

		if (bp->flags & BNXT_FLAG_CHIP_P5)
			goto async_event_process_exit;

		netdev_warn(bp->dev, "Ring monitor event, ring type %lu id 0x%x\n",
			    BNXT_EVENT_RING_TYPE(data2), data1);
		if (!BNXT_EVENT_RING_TYPE_RX(data2))
			goto async_event_process_exit;

		grp_idx = bnxt_agg_ring_id_to_grp_idx(bp, data1);
		if (grp_idx == INVALID_HW_RING_ID) {
			netdev_warn(bp->dev, "Unknown RX agg ring id 0x%x\n",
				    data1);
			goto async_event_process_exit;
		}
		rxr = bp->bnapi[grp_idx]->rx_ring;
		bnxt_sched_reset(bp, rxr);
		goto async_event_process_exit;
	}
	case ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST: {
		struct bnxt_fw_health *fw_health = bp->fw_health;

		netif_notice(bp, hw, bp->dev,
			     "Received firmware echo request, data1: 0x%x, data2: 0x%x\n",
			     data1, data2);
		if (fw_health) {
			fw_health->echo_req_data1 = data1;
			fw_health->echo_req_data2 = data2;
			set_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event);
			break;
		}
		goto async_event_process_exit;
	}
	case ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP: {
		bnxt_ptp_pps_event(bp, data1, data2);
		goto async_event_process_exit;
	}
	case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT: {
		bnxt_event_error_report(bp, data1, data2);
		goto async_event_process_exit;
	}
	case ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE: {
		u16 seq_id = le32_to_cpu(cmpl->event_data2) & 0xffff;

		hwrm_update_token(bp, seq_id, BNXT_HWRM_DEFERRED);
		goto async_event_process_exit;
	}
	default:
		goto async_event_process_exit;
	}
	bnxt_queue_sp_work(bp);
async_event_process_exit:
	bnxt_ulp_async_events(bp, cmpl);
	return 0;
}

static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp)
{
	u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id;
	struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp;
	struct hwrm_fwd_req_cmpl *fwd_req_cmpl =
				(struct hwrm_fwd_req_cmpl *)txcmp;

	switch (cmpl_type) {
	case CMPL_BASE_TYPE_HWRM_DONE:
		seq_id = le16_to_cpu(h_cmpl->sequence_id);
		hwrm_update_token(bp, seq_id, BNXT_HWRM_COMPLETE);
		break;

	case CMPL_BASE_TYPE_HWRM_FWD_REQ:
		vf_id = le16_to_cpu(fwd_req_cmpl->source_id);

		if ((vf_id < bp->pf.first_vf_id) ||
		    (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) {
			netdev_err(bp->dev, "Msg contains invalid VF id %x\n",
				   vf_id);
			return -EINVAL;
		}

		set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap);
		set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event);
		bnxt_queue_sp_work(bp);
		break;

	case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
		bnxt_async_event_process(bp,
					 (struct hwrm_async_event_cmpl *)txcmp);
		break;

	default:
		break;
	}

	return 0;
}

static irqreturn_t bnxt_msix(int irq, void *dev_instance)
{
	struct bnxt_napi *bnapi = dev_instance;
	struct bnxt *bp = bnapi->bp;
	struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
	u32 cons = RING_CMP(cpr->cp_raw_cons);

	cpr->event_ctr++;
	prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);
	napi_schedule(&bnapi->napi);
	return IRQ_HANDLED;
}

static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
{
	u32 raw_cons = cpr->cp_raw_cons;
	u16 cons = RING_CMP(raw_cons);
	struct tx_cmp *txcmp;

	txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];

	return TX_CMP_VALID(txcmp, raw_cons);
}

static irqreturn_t bnxt_inta(int irq, void *dev_instance)
{
	struct bnxt_napi *bnapi = dev_instance;
	struct bnxt *bp = bnapi->bp;
	struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
	u32 cons = RING_CMP(cpr->cp_raw_cons);
	u32 int_status;

	prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]);

	if (!bnxt_has_work(bp, cpr)) {
		int_status = readl(bp->bar0 + BNXT_CAG_REG_LEGACY_INT_STATUS);
		/* return if erroneous interrupt */
		if (!(int_status & (0x10000 << cpr->cp_ring_struct.fw_ring_id)))
			return IRQ_NONE;
	}

	/* disable ring IRQ */
	BNXT_CP_DB_IRQ_DIS(cpr->cp_db.doorbell);

	/* Return here if interrupt is shared and is disabled. */
	if (unlikely(atomic_read(&bp->intr_sem) != 0))
		return IRQ_HANDLED;

	napi_schedule(&bnapi->napi);
	return IRQ_HANDLED;
}

static int __bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
			    int budget)
{
	struct bnxt_napi *bnapi = cpr->bnapi;
	u32 raw_cons = cpr->cp_raw_cons;
	u32 cons;
	int tx_pkts = 0;
	int rx_pkts = 0;
	u8 event = 0;
	struct tx_cmp *txcmp;

	cpr->has_more_work = 0;
	cpr->had_work_done = 1;
	while (1) {
		int rc;

		cons = RING_CMP(raw_cons);
		txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)];

		if (!TX_CMP_VALID(txcmp, raw_cons))
			break;

		/* The valid test of the entry must be done first before
		 * reading any further.
		 */
		dma_rmb();
		if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) {
			tx_pkts++;
			/* return full budget so NAPI will complete. */
			if (unlikely(tx_pkts > bp->tx_wake_thresh)) {
				rx_pkts = budget;
				raw_cons = NEXT_RAW_CMP(raw_cons);
				if (budget)
					cpr->has_more_work = 1;
				break;
			}
		} else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
			if (likely(budget))
				rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event);
			else
				rc = bnxt_force_rx_discard(bp, cpr, &raw_cons,
							   &event);
			if (likely(rc >= 0))
				rx_pkts += rc;
			/* Increment rx_pkts when rc is -ENOMEM to count towards
			 * the NAPI budget.  Otherwise, we may potentially loop
			 * here forever if we consistently cannot allocate
			 * buffers.
			 */
			else if (rc == -ENOMEM && budget)
				rx_pkts++;
			else if (rc == -EBUSY)	/* partial completion */
				break;
		} else if (unlikely((TX_CMP_TYPE(txcmp) ==
				     CMPL_BASE_TYPE_HWRM_DONE) ||
				    (TX_CMP_TYPE(txcmp) ==
				     CMPL_BASE_TYPE_HWRM_FWD_REQ) ||
				    (TX_CMP_TYPE(txcmp) ==
				     CMPL_BASE_TYPE_HWRM_ASYNC_EVENT))) {
			bnxt_hwrm_handler(bp, txcmp);
		}
		raw_cons = NEXT_RAW_CMP(raw_cons);

		if (rx_pkts && rx_pkts == budget) {
			cpr->has_more_work = 1;
			break;
		}
	}

	if (event & BNXT_REDIRECT_EVENT)
		xdp_do_flush_map();

	if (event & BNXT_TX_EVENT) {
		struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
		u16 prod = txr->tx_prod;

		/* Sync BD data before updating doorbell */
		wmb();

		bnxt_db_write_relaxed(bp, &txr->tx_db, prod);
	}

	cpr->cp_raw_cons = raw_cons;
	bnapi->tx_pkts += tx_pkts;
	bnapi->events |= event;
	return rx_pkts;
}

static void __bnxt_poll_work_done(struct bnxt *bp, struct bnxt_napi *bnapi)
{
	if (bnapi->tx_pkts) {
		bnapi->tx_int(bp, bnapi, bnapi->tx_pkts);
		bnapi->tx_pkts = 0;
	}

	if ((bnapi->events & BNXT_RX_EVENT) && !(bnapi->in_reset)) {
		struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;

		if (bnapi->events & BNXT_AGG_EVENT)
			bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
		bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
	}
	bnapi->events = 0;
}

static int bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr,
			  int budget)
{
	struct bnxt_napi *bnapi = cpr->bnapi;
	int rx_pkts;

	rx_pkts = __bnxt_poll_work(bp, cpr, budget);

	/* ACK completion ring before freeing tx ring and producing new
	 * buffers in rx/agg rings to prevent overflowing the completion
	 * ring.
	 */
	bnxt_db_cq(bp, &cpr->cp_db, cpr->cp_raw_cons);

	__bnxt_poll_work_done(bp, bnapi);
	return rx_pkts;
}

static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget)
{
	struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
	struct bnxt *bp = bnapi->bp;
	struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
	struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
	struct tx_cmp *txcmp;
	struct rx_cmp_ext *rxcmp1;
	u32 cp_cons, tmp_raw_cons;
	u32 raw_cons = cpr->cp_raw_cons;
	u32 rx_pkts = 0;
	u8 event = 0;

	while (1) {
		int rc;

		cp_cons = RING_CMP(raw_cons);
		txcmp = &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];

		if (!TX_CMP_VALID(txcmp, raw_cons))
			break;

		/* The valid test of the entry must be done first before
		 * reading any further.
		 */
		dma_rmb();
		if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) {
			tmp_raw_cons = NEXT_RAW_CMP(raw_cons);
			cp_cons = RING_CMP(tmp_raw_cons);
			rxcmp1 = (struct rx_cmp_ext *)
			  &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)];

			if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons))
				break;

			/* force an error to recycle the buffer */
			rxcmp1->rx_cmp_cfa_code_errors_v2 |=
				cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR);

			rc = bnxt_rx_pkt(bp, cpr, &raw_cons, &event);
			if (likely(rc == -EIO) && budget)
				rx_pkts++;
			else if (rc == -EBUSY)	/* partial completion */
				break;
		} else if (unlikely(TX_CMP_TYPE(txcmp) ==
				    CMPL_BASE_TYPE_HWRM_DONE)) {
			bnxt_hwrm_handler(bp, txcmp);
		} else {
			netdev_err(bp->dev,
				   "Invalid completion received on special ring\n");
		}
		raw_cons = NEXT_RAW_CMP(raw_cons);

		if (rx_pkts == budget)
			break;
	}

	cpr->cp_raw_cons = raw_cons;
	BNXT_DB_CQ(&cpr->cp_db, cpr->cp_raw_cons);
	bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);

	if (event & BNXT_AGG_EVENT)
		bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);

	if (!bnxt_has_work(bp, cpr) && rx_pkts < budget) {
		napi_complete_done(napi, rx_pkts);
		BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons);
	}
	return rx_pkts;
}

static int bnxt_poll(struct napi_struct *napi, int budget)
{
	struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
	struct bnxt *bp = bnapi->bp;
	struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
	int work_done = 0;

	if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) {
		napi_complete(napi);
		return 0;
	}
	while (1) {
		work_done += bnxt_poll_work(bp, cpr, budget - work_done);

		if (work_done >= budget) {
			if (!budget)
				BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons);
			break;
		}

		if (!bnxt_has_work(bp, cpr)) {
			if (napi_complete_done(napi, work_done))
				BNXT_DB_CQ_ARM(&cpr->cp_db, cpr->cp_raw_cons);
			break;
		}
	}
	if (bp->flags & BNXT_FLAG_DIM) {
		struct dim_sample dim_sample = {};

		dim_update_sample(cpr->event_ctr,
				  cpr->rx_packets,
				  cpr->rx_bytes,
				  &dim_sample);
		net_dim(&cpr->dim, dim_sample);
	}
	return work_done;
}

static int __bnxt_poll_cqs(struct bnxt *bp, struct bnxt_napi *bnapi, int budget)
{
	struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
	int i, work_done = 0;

	for (i = 0; i < 2; i++) {
		struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i];

		if (cpr2) {
			work_done += __bnxt_poll_work(bp, cpr2,
						      budget - work_done);
			cpr->has_more_work |= cpr2->has_more_work;
		}
	}
	return work_done;
}

static void __bnxt_poll_cqs_done(struct bnxt *bp, struct bnxt_napi *bnapi,
				 u64 dbr_type)
{
	struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
	int i;

	for (i = 0; i < 2; i++) {
		struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[i];
		struct bnxt_db_info *db;

		if (cpr2 && cpr2->had_work_done) {
			db = &cpr2->cp_db;
			bnxt_writeq(bp, db->db_key64 | dbr_type |
				    RING_CMP(cpr2->cp_raw_cons), db->doorbell);
			cpr2->had_work_done = 0;
		}
	}
	__bnxt_poll_work_done(bp, bnapi);
}

static int bnxt_poll_p5(struct napi_struct *napi, int budget)
{
	struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
	struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
	u32 raw_cons = cpr->cp_raw_cons;
	struct bnxt *bp = bnapi->bp;
	struct nqe_cn *nqcmp;
	int work_done = 0;
	u32 cons;

	if (unlikely(test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))) {
		napi_complete(napi);
		return 0;
	}
	if (cpr->has_more_work) {
		cpr->has_more_work = 0;
		work_done = __bnxt_poll_cqs(bp, bnapi, budget);
	}
	while (1) {
		cons = RING_CMP(raw_cons);
		nqcmp = &cpr->nq_desc_ring[CP_RING(cons)][CP_IDX(cons)];

		if (!NQ_CMP_VALID(nqcmp, raw_cons)) {
			if (cpr->has_more_work)
				break;

			__bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ_ARMALL);
			cpr->cp_raw_cons = raw_cons;
			if (napi_complete_done(napi, work_done))
				BNXT_DB_NQ_ARM_P5(&cpr->cp_db,
						  cpr->cp_raw_cons);
			return work_done;
		}

		/* The valid test of the entry must be done first before
		 * reading any further.
		 */
		dma_rmb();

		if (nqcmp->type == cpu_to_le16(NQ_CN_TYPE_CQ_NOTIFICATION)) {
			u32 idx = le32_to_cpu(nqcmp->cq_handle_low);
			struct bnxt_cp_ring_info *cpr2;

			cpr2 = cpr->cp_ring_arr[idx];
			work_done += __bnxt_poll_work(bp, cpr2,
						      budget - work_done);
			cpr->has_more_work |= cpr2->has_more_work;
		} else {
			bnxt_hwrm_handler(bp, (struct tx_cmp *)nqcmp);
		}
		raw_cons = NEXT_RAW_CMP(raw_cons);
	}
	__bnxt_poll_cqs_done(bp, bnapi, DBR_TYPE_CQ);
	if (raw_cons != cpr->cp_raw_cons) {
		cpr->cp_raw_cons = raw_cons;
		BNXT_DB_NQ_P5(&cpr->cp_db, raw_cons);
	}
	return work_done;
}

static void bnxt_free_tx_skbs(struct bnxt *bp)
{
	int i, max_idx;
	struct pci_dev *pdev = bp->pdev;

	if (!bp->tx_ring)
		return;

	max_idx = bp->tx_nr_pages * TX_DESC_CNT;
	for (i = 0; i < bp->tx_nr_rings; i++) {
		struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
		int j;

		for (j = 0; j < max_idx;) {
			struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
			struct sk_buff *skb;
			int k, last;

			if (i < bp->tx_nr_rings_xdp &&
			    tx_buf->action == XDP_REDIRECT) {
				dma_unmap_single(&pdev->dev,
					dma_unmap_addr(tx_buf, mapping),
					dma_unmap_len(tx_buf, len),
					DMA_TO_DEVICE);
				xdp_return_frame(tx_buf->xdpf);
				tx_buf->action = 0;
				tx_buf->xdpf = NULL;
				j++;
				continue;
			}

			skb = tx_buf->skb;
			if (!skb) {
				j++;
				continue;
			}

			tx_buf->skb = NULL;

			if (tx_buf->is_push) {
				dev_kfree_skb(skb);
				j += 2;
				continue;
			}

			dma_unmap_single(&pdev->dev,
					 dma_unmap_addr(tx_buf, mapping),
					 skb_headlen(skb),
					 DMA_TO_DEVICE);

			last = tx_buf->nr_frags;
			j += 2;
			for (k = 0; k < last; k++, j++) {
				int ring_idx = j & bp->tx_ring_mask;
				skb_frag_t *frag = &skb_shinfo(skb)->frags[k];

				tx_buf = &txr->tx_buf_ring[ring_idx];
				dma_unmap_page(
					&pdev->dev,
					dma_unmap_addr(tx_buf, mapping),
					skb_frag_size(frag), DMA_TO_DEVICE);
			}
			dev_kfree_skb(skb);
		}
		netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));
	}
}

static void bnxt_free_one_rx_ring_skbs(struct bnxt *bp, int ring_nr)
{
	struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr];
	struct pci_dev *pdev = bp->pdev;
	struct bnxt_tpa_idx_map *map;
	int i, max_idx, max_agg_idx;

	max_idx = bp->rx_nr_pages * RX_DESC_CNT;
	max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT;
	if (!rxr->rx_tpa)
		goto skip_rx_tpa_free;

	for (i = 0; i < bp->max_tpa; i++) {
		struct bnxt_tpa_info *tpa_info = &rxr->rx_tpa[i];
		u8 *data = tpa_info->data;

		if (!data)
			continue;

		dma_unmap_single_attrs(&pdev->dev, tpa_info->mapping,
				       bp->rx_buf_use_size, bp->rx_dir,
				       DMA_ATTR_WEAK_ORDERING);

		tpa_info->data = NULL;

		kfree(data);
	}

skip_rx_tpa_free:
	for (i = 0; i < max_idx; i++) {
		struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[i];
		dma_addr_t mapping = rx_buf->mapping;
		void *data = rx_buf->data;

		if (!data)
			continue;

		rx_buf->data = NULL;
		if (BNXT_RX_PAGE_MODE(bp)) {
			mapping -= bp->rx_dma_offset;
			dma_unmap_page_attrs(&pdev->dev, mapping, PAGE_SIZE,
					     bp->rx_dir,
					     DMA_ATTR_WEAK_ORDERING);
			page_pool_recycle_direct(rxr->page_pool, data);
		} else {
			dma_unmap_single_attrs(&pdev->dev, mapping,
					       bp->rx_buf_use_size, bp->rx_dir,
					       DMA_ATTR_WEAK_ORDERING);
			kfree(data);
		}
	}
	for (i = 0; i < max_agg_idx; i++) {
		struct bnxt_sw_rx_agg_bd *rx_agg_buf = &rxr->rx_agg_ring[i];
		struct page *page = rx_agg_buf->page;

		if (!page)
			continue;

		dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping,
				     BNXT_RX_PAGE_SIZE, DMA_FROM_DEVICE,
				     DMA_ATTR_WEAK_ORDERING);

		rx_agg_buf->page = NULL;
		__clear_bit(i, rxr->rx_agg_bmap);

		__free_page(page);
	}
	if (rxr->rx_page) {
		__free_page(rxr->rx_page);
		rxr->rx_page = NULL;
	}
	map = rxr->rx_tpa_idx_map;
	if (map)
		memset(map->agg_idx_bmap, 0, sizeof(map->agg_idx_bmap));
}

static void bnxt_free_rx_skbs(struct bnxt *bp)
{
	int i;

	if (!bp->rx_ring)
		return;

	for (i = 0; i < bp->rx_nr_rings; i++)
		bnxt_free_one_rx_ring_skbs(bp, i);
}

static void bnxt_free_skbs(struct bnxt *bp)
{
	bnxt_free_tx_skbs(bp);
	bnxt_free_rx_skbs(bp);
}

static void bnxt_init_ctx_mem(struct bnxt_mem_init *mem_init, void *p, int len)
{
	u8 init_val = mem_init->init_val;
	u16 offset = mem_init->offset;
	u8 *p2 = p;
	int i;

	if (!init_val)
		return;
	if (offset == BNXT_MEM_INVALID_OFFSET) {
		memset(p, init_val, len);
		return;
	}
	for (i = 0; i < len; i += mem_init->size)
		*(p2 + i + offset) = init_val;
}

static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem)
{
	struct pci_dev *pdev = bp->pdev;
	int i;

	for (i = 0; i < rmem->nr_pages; i++) {
		if (!rmem->pg_arr[i])
			continue;

		dma_free_coherent(&pdev->dev, rmem->page_size,
				  rmem->pg_arr[i], rmem->dma_arr[i]);

		rmem->pg_arr[i] = NULL;
	}
	if (rmem->pg_tbl) {
		size_t pg_tbl_size = rmem->nr_pages * 8;

		if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG)
			pg_tbl_size = rmem->page_size;
		dma_free_coherent(&pdev->dev, pg_tbl_size,
				  rmem->pg_tbl, rmem->pg_tbl_map);
		rmem->pg_tbl = NULL;
	}
	if (rmem->vmem_size && *rmem->vmem) {
		vfree(*rmem->vmem);
		*rmem->vmem = NULL;
	}
}

static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem)
{
	struct pci_dev *pdev = bp->pdev;
	u64 valid_bit = 0;
	int i;

	if (rmem->flags & (BNXT_RMEM_VALID_PTE_FLAG | BNXT_RMEM_RING_PTE_FLAG))
		valid_bit = PTU_PTE_VALID;
	if ((rmem->nr_pages > 1 || rmem->depth > 0) && !rmem->pg_tbl) {
		size_t pg_tbl_size = rmem->nr_pages * 8;

		if (rmem->flags & BNXT_RMEM_USE_FULL_PAGE_FLAG)
			pg_tbl_size = rmem->page_size;
		rmem->pg_tbl = dma_alloc_coherent(&pdev->dev, pg_tbl_size,
						  &rmem->pg_tbl_map,
						  GFP_KERNEL);
		if (!rmem->pg_tbl)
			return -ENOMEM;
	}

	for (i = 0; i < rmem->nr_pages; i++) {
		u64 extra_bits = valid_bit;

		rmem->pg_arr[i] = dma_alloc_coherent(&pdev->dev,
						     rmem->page_size,
						     &rmem->dma_arr[i],
						     GFP_KERNEL);
		if (!rmem->pg_arr[i])
			return -ENOMEM;

		if (rmem->mem_init)
			bnxt_init_ctx_mem(rmem->mem_init, rmem->pg_arr[i],
					  rmem->page_size);
		if (rmem->nr_pages > 1 || rmem->depth > 0) {
			if (i == rmem->nr_pages - 2 &&
			    (rmem->flags & BNXT_RMEM_RING_PTE_FLAG))
				extra_bits |= PTU_PTE_NEXT_TO_LAST;
			else if (i == rmem->nr_pages - 1 &&
				 (rmem->flags & BNXT_RMEM_RING_PTE_FLAG))
				extra_bits |= PTU_PTE_LAST;
			rmem->pg_tbl[i] =
				cpu_to_le64(rmem->dma_arr[i] | extra_bits);
		}
	}

	if (rmem->vmem_size) {
		*rmem->vmem = vzalloc(rmem->vmem_size);
		if (!(*rmem->vmem))
			return -ENOMEM;
	}
	return 0;
}

static void bnxt_free_tpa_info(struct bnxt *bp)
{
	int i;

	for (i = 0; i < bp->rx_nr_rings; i++) {
		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];

		kfree(rxr->rx_tpa_idx_map);
		rxr->rx_tpa_idx_map = NULL;
		if (rxr->rx_tpa) {
			kfree(rxr->rx_tpa[0].agg_arr);
			rxr->rx_tpa[0].agg_arr = NULL;
		}
		kfree(rxr->rx_tpa);
		rxr->rx_tpa = NULL;
	}
}

static int bnxt_alloc_tpa_info(struct bnxt *bp)
{
	int i, j, total_aggs = 0;

	bp->max_tpa = MAX_TPA;
	if (bp->flags & BNXT_FLAG_CHIP_P5) {
		if (!bp->max_tpa_v2)
			return 0;
		bp->max_tpa = max_t(u16, bp->max_tpa_v2, MAX_TPA_P5);
		total_aggs = bp->max_tpa * MAX_SKB_FRAGS;
	}

	for (i = 0; i < bp->rx_nr_rings; i++) {
		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
		struct rx_agg_cmp *agg;

		rxr->rx_tpa = kcalloc(bp->max_tpa, sizeof(struct bnxt_tpa_info),
				      GFP_KERNEL);
		if (!rxr->rx_tpa)
			return -ENOMEM;

		if (!(bp->flags & BNXT_FLAG_CHIP_P5))
			continue;
		agg = kcalloc(total_aggs, sizeof(*agg), GFP_KERNEL);
		rxr->rx_tpa[0].agg_arr = agg;
		if (!agg)
			return -ENOMEM;
		for (j = 1; j < bp->max_tpa; j++)
			rxr->rx_tpa[j].agg_arr = agg + j * MAX_SKB_FRAGS;
		rxr->rx_tpa_idx_map = kzalloc(sizeof(*rxr->rx_tpa_idx_map),
					      GFP_KERNEL);
		if (!rxr->rx_tpa_idx_map)
			return -ENOMEM;
	}
	return 0;
}

static void bnxt_free_rx_rings(struct bnxt *bp)
{
	int i;

	if (!bp->rx_ring)
		return;

	bnxt_free_tpa_info(bp);
	for (i = 0; i < bp->rx_nr_rings; i++) {
		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
		struct bnxt_ring_struct *ring;

		if (rxr->xdp_prog)
			bpf_prog_put(rxr->xdp_prog);

		if (xdp_rxq_info_is_reg(&rxr->xdp_rxq))
			xdp_rxq_info_unreg(&rxr->xdp_rxq);

		page_pool_destroy(rxr->page_pool);
		rxr->page_pool = NULL;

		kfree(rxr->rx_agg_bmap);
		rxr->rx_agg_bmap = NULL;

		ring = &rxr->rx_ring_struct;
		bnxt_free_ring(bp, &ring->ring_mem);

		ring = &rxr->rx_agg_ring_struct;
		bnxt_free_ring(bp, &ring->ring_mem);
	}
}

static int bnxt_alloc_rx_page_pool(struct bnxt *bp,
				   struct bnxt_rx_ring_info *rxr)
{
	struct page_pool_params pp = { 0 };

	pp.pool_size = bp->rx_ring_size;
	pp.nid = dev_to_node(&bp->pdev->dev);
	pp.dev = &bp->pdev->dev;
	pp.dma_dir = DMA_BIDIRECTIONAL;

	rxr->page_pool = page_pool_create(&pp);
	if (IS_ERR(rxr->page_pool)) {
		int err = PTR_ERR(rxr->page_pool);

		rxr->page_pool = NULL;
		return err;
	}
	return 0;
}

static int bnxt_alloc_rx_rings(struct bnxt *bp)
{
	int i, rc = 0, agg_rings = 0;

	if (!bp->rx_ring)
		return -ENOMEM;

	if (bp->flags & BNXT_FLAG_AGG_RINGS)
		agg_rings = 1;

	for (i = 0; i < bp->rx_nr_rings; i++) {
		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
		struct bnxt_ring_struct *ring;

		ring = &rxr->rx_ring_struct;

		rc = bnxt_alloc_rx_page_pool(bp, rxr);
		if (rc)
			return rc;

		rc = xdp_rxq_info_reg(&rxr->xdp_rxq, bp->dev, i, 0);
		if (rc < 0)
			return rc;

		rc = xdp_rxq_info_reg_mem_model(&rxr->xdp_rxq,
						MEM_TYPE_PAGE_POOL,
						rxr->page_pool);
		if (rc) {
			xdp_rxq_info_unreg(&rxr->xdp_rxq);
			return rc;
		}

		rc = bnxt_alloc_ring(bp, &ring->ring_mem);
		if (rc)
			return rc;

		ring->grp_idx = i;
		if (agg_rings) {
			u16 mem_size;

			ring = &rxr->rx_agg_ring_struct;
			rc = bnxt_alloc_ring(bp, &ring->ring_mem);
			if (rc)
				return rc;

			ring->grp_idx = i;
			rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1;
			mem_size = rxr->rx_agg_bmap_size / 8;
			rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL);
			if (!rxr->rx_agg_bmap)
				return -ENOMEM;
		}
	}
	if (bp->flags & BNXT_FLAG_TPA)
		rc = bnxt_alloc_tpa_info(bp);
	return rc;
}

static void bnxt_free_tx_rings(struct bnxt *bp)
{
	int i;
	struct pci_dev *pdev = bp->pdev;

	if (!bp->tx_ring)
		return;

	for (i = 0; i < bp->tx_nr_rings; i++) {
		struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
		struct bnxt_ring_struct *ring;

		if (txr->tx_push) {
			dma_free_coherent(&pdev->dev, bp->tx_push_size,
					  txr->tx_push, txr->tx_push_mapping);
			txr->tx_push = NULL;
		}

		ring = &txr->tx_ring_struct;

		bnxt_free_ring(bp, &ring->ring_mem);
	}
}

static int bnxt_alloc_tx_rings(struct bnxt *bp)
{
	int i, j, rc;
	struct pci_dev *pdev = bp->pdev;

	bp->tx_push_size = 0;
	if (bp->tx_push_thresh) {
		int push_size;

		push_size  = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) +
					bp->tx_push_thresh);

		if (push_size > 256) {
			push_size = 0;
			bp->tx_push_thresh = 0;
		}

		bp->tx_push_size = push_size;
	}

	for (i = 0, j = 0; i < bp->tx_nr_rings; i++) {
		struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
		struct bnxt_ring_struct *ring;
		u8 qidx;

		ring = &txr->tx_ring_struct;

		rc = bnxt_alloc_ring(bp, &ring->ring_mem);
		if (rc)
			return rc;

		ring->grp_idx = txr->bnapi->index;
		if (bp->tx_push_size) {
			dma_addr_t mapping;

			/* One pre-allocated DMA buffer to backup
			 * TX push operation
			 */
			txr->tx_push = dma_alloc_coherent(&pdev->dev,
						bp->tx_push_size,
						&txr->tx_push_mapping,
						GFP_KERNEL);

			if (!txr->tx_push)
				return -ENOMEM;

			mapping = txr->tx_push_mapping +
				sizeof(struct tx_push_bd);
			txr->data_mapping = cpu_to_le64(mapping);
		}
		qidx = bp->tc_to_qidx[j];
		ring->queue_id = bp->q_info[qidx].queue_id;
		if (i < bp->tx_nr_rings_xdp)
			continue;
		if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1))
			j++;
	}
	return 0;
}

static void bnxt_free_cp_arrays(struct bnxt_cp_ring_info *cpr)
{
	kfree(cpr->cp_desc_ring);
	cpr->cp_desc_ring = NULL;
	kfree(cpr->cp_desc_mapping);
	cpr->cp_desc_mapping = NULL;
}

static int bnxt_alloc_cp_arrays(struct bnxt_cp_ring_info *cpr, int n)
{
	cpr->cp_desc_ring = kcalloc(n, sizeof(*cpr->cp_desc_ring), GFP_KERNEL);
	if (!cpr->cp_desc_ring)
		return -ENOMEM;
	cpr->cp_desc_mapping = kcalloc(n, sizeof(*cpr->cp_desc_mapping),
				       GFP_KERNEL);
	if (!cpr->cp_desc_mapping)
		return -ENOMEM;
	return 0;
}

static void bnxt_free_all_cp_arrays(struct bnxt *bp)
{
	int i;

	if (!bp->bnapi)
		return;
	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];

		if (!bnapi)
			continue;
		bnxt_free_cp_arrays(&bnapi->cp_ring);
	}
}

static int bnxt_alloc_all_cp_arrays(struct bnxt *bp)
{
	int i, n = bp->cp_nr_pages;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		int rc;

		if (!bnapi)
			continue;
		rc = bnxt_alloc_cp_arrays(&bnapi->cp_ring, n);
		if (rc)
			return rc;
	}
	return 0;
}

static void bnxt_free_cp_rings(struct bnxt *bp)
{
	int i;

	if (!bp->bnapi)
		return;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr;
		struct bnxt_ring_struct *ring;
		int j;

		if (!bnapi)
			continue;

		cpr = &bnapi->cp_ring;
		ring = &cpr->cp_ring_struct;

		bnxt_free_ring(bp, &ring->ring_mem);

		for (j = 0; j < 2; j++) {
			struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];

			if (cpr2) {
				ring = &cpr2->cp_ring_struct;
				bnxt_free_ring(bp, &ring->ring_mem);
				bnxt_free_cp_arrays(cpr2);
				kfree(cpr2);
				cpr->cp_ring_arr[j] = NULL;
			}
		}
	}
}

static struct bnxt_cp_ring_info *bnxt_alloc_cp_sub_ring(struct bnxt *bp)
{
	struct bnxt_ring_mem_info *rmem;
	struct bnxt_ring_struct *ring;
	struct bnxt_cp_ring_info *cpr;
	int rc;

	cpr = kzalloc(sizeof(*cpr), GFP_KERNEL);
	if (!cpr)
		return NULL;

	rc = bnxt_alloc_cp_arrays(cpr, bp->cp_nr_pages);
	if (rc) {
		bnxt_free_cp_arrays(cpr);
		kfree(cpr);
		return NULL;
	}
	ring = &cpr->cp_ring_struct;
	rmem = &ring->ring_mem;
	rmem->nr_pages = bp->cp_nr_pages;
	rmem->page_size = HW_CMPD_RING_SIZE;
	rmem->pg_arr = (void **)cpr->cp_desc_ring;
	rmem->dma_arr = cpr->cp_desc_mapping;
	rmem->flags = BNXT_RMEM_RING_PTE_FLAG;
	rc = bnxt_alloc_ring(bp, rmem);
	if (rc) {
		bnxt_free_ring(bp, rmem);
		bnxt_free_cp_arrays(cpr);
		kfree(cpr);
		cpr = NULL;
	}
	return cpr;
}

static int bnxt_alloc_cp_rings(struct bnxt *bp)
{
	bool sh = !!(bp->flags & BNXT_FLAG_SHARED_RINGS);
	int i, rc, ulp_base_vec, ulp_msix;

	ulp_msix = bnxt_get_ulp_msix_num(bp);
	ulp_base_vec = bnxt_get_ulp_msix_base(bp);
	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr;
		struct bnxt_ring_struct *ring;

		if (!bnapi)
			continue;

		cpr = &bnapi->cp_ring;
		cpr->bnapi = bnapi;
		ring = &cpr->cp_ring_struct;

		rc = bnxt_alloc_ring(bp, &ring->ring_mem);
		if (rc)
			return rc;

		if (ulp_msix && i >= ulp_base_vec)
			ring->map_idx = i + ulp_msix;
		else
			ring->map_idx = i;

		if (!(bp->flags & BNXT_FLAG_CHIP_P5))
			continue;

		if (i < bp->rx_nr_rings) {
			struct bnxt_cp_ring_info *cpr2 =
				bnxt_alloc_cp_sub_ring(bp);

			cpr->cp_ring_arr[BNXT_RX_HDL] = cpr2;
			if (!cpr2)
				return -ENOMEM;
			cpr2->bnapi = bnapi;
		}
		if ((sh && i < bp->tx_nr_rings) ||
		    (!sh && i >= bp->rx_nr_rings)) {
			struct bnxt_cp_ring_info *cpr2 =
				bnxt_alloc_cp_sub_ring(bp);

			cpr->cp_ring_arr[BNXT_TX_HDL] = cpr2;
			if (!cpr2)
				return -ENOMEM;
			cpr2->bnapi = bnapi;
		}
	}
	return 0;
}

static void bnxt_init_ring_struct(struct bnxt *bp)
{
	int i;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_ring_mem_info *rmem;
		struct bnxt_cp_ring_info *cpr;
		struct bnxt_rx_ring_info *rxr;
		struct bnxt_tx_ring_info *txr;
		struct bnxt_ring_struct *ring;

		if (!bnapi)
			continue;

		cpr = &bnapi->cp_ring;
		ring = &cpr->cp_ring_struct;
		rmem = &ring->ring_mem;
		rmem->nr_pages = bp->cp_nr_pages;
		rmem->page_size = HW_CMPD_RING_SIZE;
		rmem->pg_arr = (void **)cpr->cp_desc_ring;
		rmem->dma_arr = cpr->cp_desc_mapping;
		rmem->vmem_size = 0;

		rxr = bnapi->rx_ring;
		if (!rxr)
			goto skip_rx;

		ring = &rxr->rx_ring_struct;
		rmem = &ring->ring_mem;
		rmem->nr_pages = bp->rx_nr_pages;
		rmem->page_size = HW_RXBD_RING_SIZE;
		rmem->pg_arr = (void **)rxr->rx_desc_ring;
		rmem->dma_arr = rxr->rx_desc_mapping;
		rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages;
		rmem->vmem = (void **)&rxr->rx_buf_ring;

		ring = &rxr->rx_agg_ring_struct;
		rmem = &ring->ring_mem;
		rmem->nr_pages = bp->rx_agg_nr_pages;
		rmem->page_size = HW_RXBD_RING_SIZE;
		rmem->pg_arr = (void **)rxr->rx_agg_desc_ring;
		rmem->dma_arr = rxr->rx_agg_desc_mapping;
		rmem->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages;
		rmem->vmem = (void **)&rxr->rx_agg_ring;

skip_rx:
		txr = bnapi->tx_ring;
		if (!txr)
			continue;

		ring = &txr->tx_ring_struct;
		rmem = &ring->ring_mem;
		rmem->nr_pages = bp->tx_nr_pages;
		rmem->page_size = HW_RXBD_RING_SIZE;
		rmem->pg_arr = (void **)txr->tx_desc_ring;
		rmem->dma_arr = txr->tx_desc_mapping;
		rmem->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages;
		rmem->vmem = (void **)&txr->tx_buf_ring;
	}
}

static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type)
{
	int i;
	u32 prod;
	struct rx_bd **rx_buf_ring;

	rx_buf_ring = (struct rx_bd **)ring->ring_mem.pg_arr;
	for (i = 0, prod = 0; i < ring->ring_mem.nr_pages; i++) {
		int j;
		struct rx_bd *rxbd;

		rxbd = rx_buf_ring[i];
		if (!rxbd)
			continue;

		for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) {
			rxbd->rx_bd_len_flags_type = cpu_to_le32(type);
			rxbd->rx_bd_opaque = prod;
		}
	}
}

static int bnxt_alloc_one_rx_ring(struct bnxt *bp, int ring_nr)
{
	struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr];
	struct net_device *dev = bp->dev;
	u32 prod;
	int i;

	prod = rxr->rx_prod;
	for (i = 0; i < bp->rx_ring_size; i++) {
		if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL)) {
			netdev_warn(dev, "init'ed rx ring %d with %d/%d skbs only\n",
				    ring_nr, i, bp->rx_ring_size);
			break;
		}
		prod = NEXT_RX(prod);
	}
	rxr->rx_prod = prod;

	if (!(bp->flags & BNXT_FLAG_AGG_RINGS))
		return 0;

	prod = rxr->rx_agg_prod;
	for (i = 0; i < bp->rx_agg_ring_size; i++) {
		if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_KERNEL)) {
			netdev_warn(dev, "init'ed rx ring %d with %d/%d pages only\n",
				    ring_nr, i, bp->rx_ring_size);
			break;
		}
		prod = NEXT_RX_AGG(prod);
	}
	rxr->rx_agg_prod = prod;

	if (rxr->rx_tpa) {
		dma_addr_t mapping;
		u8 *data;

		for (i = 0; i < bp->max_tpa; i++) {
			data = __bnxt_alloc_rx_data(bp, &mapping, GFP_KERNEL);
			if (!data)
				return -ENOMEM;

			rxr->rx_tpa[i].data = data;
			rxr->rx_tpa[i].data_ptr = data + bp->rx_offset;
			rxr->rx_tpa[i].mapping = mapping;
		}
	}
	return 0;
}

static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr)
{
	struct bnxt_rx_ring_info *rxr;
	struct bnxt_ring_struct *ring;
	u32 type;

	type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) |
		RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP;

	if (NET_IP_ALIGN == 2)
		type |= RX_BD_FLAGS_SOP;

	rxr = &bp->rx_ring[ring_nr];
	ring = &rxr->rx_ring_struct;
	bnxt_init_rxbd_pages(ring, type);

	if (BNXT_RX_PAGE_MODE(bp) && bp->xdp_prog) {
		bpf_prog_add(bp->xdp_prog, 1);
		rxr->xdp_prog = bp->xdp_prog;
	}
	ring->fw_ring_id = INVALID_HW_RING_ID;

	ring = &rxr->rx_agg_ring_struct;
	ring->fw_ring_id = INVALID_HW_RING_ID;

	if ((bp->flags & BNXT_FLAG_AGG_RINGS)) {
		type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) |
			RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP;

		bnxt_init_rxbd_pages(ring, type);
	}

	return bnxt_alloc_one_rx_ring(bp, ring_nr);
}

static void bnxt_init_cp_rings(struct bnxt *bp)
{
	int i, j;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
		struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;

		ring->fw_ring_id = INVALID_HW_RING_ID;
		cpr->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks;
		cpr->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs;
		for (j = 0; j < 2; j++) {
			struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];

			if (!cpr2)
				continue;

			ring = &cpr2->cp_ring_struct;
			ring->fw_ring_id = INVALID_HW_RING_ID;
			cpr2->rx_ring_coal.coal_ticks = bp->rx_coal.coal_ticks;
			cpr2->rx_ring_coal.coal_bufs = bp->rx_coal.coal_bufs;
		}
	}
}

static int bnxt_init_rx_rings(struct bnxt *bp)
{
	int i, rc = 0;

	if (BNXT_RX_PAGE_MODE(bp)) {
		bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM;
		bp->rx_dma_offset = XDP_PACKET_HEADROOM;
	} else {
		bp->rx_offset = BNXT_RX_OFFSET;
		bp->rx_dma_offset = BNXT_RX_DMA_OFFSET;
	}

	for (i = 0; i < bp->rx_nr_rings; i++) {
		rc = bnxt_init_one_rx_ring(bp, i);
		if (rc)
			break;
	}

	return rc;
}

static int bnxt_init_tx_rings(struct bnxt *bp)
{
	u16 i;

	bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2,
				   MAX_SKB_FRAGS + 1);

	for (i = 0; i < bp->tx_nr_rings; i++) {
		struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
		struct bnxt_ring_struct *ring = &txr->tx_ring_struct;

		ring->fw_ring_id = INVALID_HW_RING_ID;
	}

	return 0;
}

static void bnxt_free_ring_grps(struct bnxt *bp)
{
	kfree(bp->grp_info);
	bp->grp_info = NULL;
}

static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init)
{
	int i;

	if (irq_re_init) {
		bp->grp_info = kcalloc(bp->cp_nr_rings,
				       sizeof(struct bnxt_ring_grp_info),
				       GFP_KERNEL);
		if (!bp->grp_info)
			return -ENOMEM;
	}
	for (i = 0; i < bp->cp_nr_rings; i++) {
		if (irq_re_init)
			bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID;
		bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
		bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID;
		bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID;
		bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID;
	}
	return 0;
}

static void bnxt_free_vnics(struct bnxt *bp)
{
	kfree(bp->vnic_info);
	bp->vnic_info = NULL;
	bp->nr_vnics = 0;
}

static int bnxt_alloc_vnics(struct bnxt *bp)
{
	int num_vnics = 1;

#ifdef CONFIG_RFS_ACCEL
	if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS)
		num_vnics += bp->rx_nr_rings;
#endif

	if (BNXT_CHIP_TYPE_NITRO_A0(bp))
		num_vnics++;

	bp->vnic_info = kcalloc(num_vnics, sizeof(struct bnxt_vnic_info),
				GFP_KERNEL);
	if (!bp->vnic_info)
		return -ENOMEM;

	bp->nr_vnics = num_vnics;
	return 0;
}

static void bnxt_init_vnics(struct bnxt *bp)
{
	int i;

	for (i = 0; i < bp->nr_vnics; i++) {
		struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
		int j;

		vnic->fw_vnic_id = INVALID_HW_RING_ID;
		for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++)
			vnic->fw_rss_cos_lb_ctx[j] = INVALID_HW_RING_ID;

		vnic->fw_l2_ctx_id = INVALID_HW_RING_ID;

		if (bp->vnic_info[i].rss_hash_key) {
			if (i == 0)
				prandom_bytes(vnic->rss_hash_key,
					      HW_HASH_KEY_SIZE);
			else
				memcpy(vnic->rss_hash_key,
				       bp->vnic_info[0].rss_hash_key,
				       HW_HASH_KEY_SIZE);
		}
	}
}

static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg)
{
	int pages;

	pages = ring_size / desc_per_pg;

	if (!pages)
		return 1;

	pages++;

	while (pages & (pages - 1))
		pages++;

	return pages;
}

void bnxt_set_tpa_flags(struct bnxt *bp)
{
	bp->flags &= ~BNXT_FLAG_TPA;
	if (bp->flags & BNXT_FLAG_NO_AGG_RINGS)
		return;
	if (bp->dev->features & NETIF_F_LRO)
		bp->flags |= BNXT_FLAG_LRO;
	else if (bp->dev->features & NETIF_F_GRO_HW)
		bp->flags |= BNXT_FLAG_GRO;
}

/* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must
 * be set on entry.
 */
void bnxt_set_ring_params(struct bnxt *bp)
{
	u32 ring_size, rx_size, rx_space, max_rx_cmpl;
	u32 agg_factor = 0, agg_ring_size = 0;

	/* 8 for CRC and VLAN */
	rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8);

	rx_space = rx_size + NET_SKB_PAD +
		SKB_DATA_ALIGN(sizeof(struct skb_shared_info));

	bp->rx_copy_thresh = BNXT_RX_COPY_THRESH;
	ring_size = bp->rx_ring_size;
	bp->rx_agg_ring_size = 0;
	bp->rx_agg_nr_pages = 0;

	if (bp->flags & BNXT_FLAG_TPA)
		agg_factor = min_t(u32, 4, 65536 / BNXT_RX_PAGE_SIZE);

	bp->flags &= ~BNXT_FLAG_JUMBO;
	if (rx_space > PAGE_SIZE && !(bp->flags & BNXT_FLAG_NO_AGG_RINGS)) {
		u32 jumbo_factor;

		bp->flags |= BNXT_FLAG_JUMBO;
		jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
		if (jumbo_factor > agg_factor)
			agg_factor = jumbo_factor;
	}
	if (agg_factor) {
		if (ring_size > BNXT_MAX_RX_DESC_CNT_JUM_ENA) {
			ring_size = BNXT_MAX_RX_DESC_CNT_JUM_ENA;
			netdev_warn(bp->dev, "RX ring size reduced from %d to %d because the jumbo ring is now enabled\n",
				    bp->rx_ring_size, ring_size);
			bp->rx_ring_size = ring_size;
		}
		agg_ring_size = ring_size * agg_factor;

		bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size,
							RX_DESC_CNT);
		if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) {
			u32 tmp = agg_ring_size;

			bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES;
			agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1;
			netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n",
				    tmp, agg_ring_size);
		}
		bp->rx_agg_ring_size = agg_ring_size;
		bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1;
		rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN);
		rx_space = rx_size + NET_SKB_PAD +
			SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
	}

	bp->rx_buf_use_size = rx_size;
	bp->rx_buf_size = rx_space;

	bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT);
	bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1;

	ring_size = bp->tx_ring_size;
	bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT);
	bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1;

	max_rx_cmpl = bp->rx_ring_size;
	/* MAX TPA needs to be added because TPA_START completions are
	 * immediately recycled, so the TPA completions are not bound by
	 * the RX ring size.
	 */
	if (bp->flags & BNXT_FLAG_TPA)
		max_rx_cmpl += bp->max_tpa;
	/* RX and TPA completions are 32-byte, all others are 16-byte */
	ring_size = max_rx_cmpl * 2 + agg_ring_size + bp->tx_ring_size;
	bp->cp_ring_size = ring_size;

	bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT);
	if (bp->cp_nr_pages > MAX_CP_PAGES) {
		bp->cp_nr_pages = MAX_CP_PAGES;
		bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1;
		netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n",
			    ring_size, bp->cp_ring_size);
	}
	bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT;
	bp->cp_ring_mask = bp->cp_bit - 1;
}

/* Changing allocation mode of RX rings.
 * TODO: Update when extending xdp_rxq_info to support allocation modes.
 */
int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
{
	if (page_mode) {
		if (bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU)
			return -EOPNOTSUPP;
		bp->dev->max_mtu =
			min_t(u16, bp->max_mtu, BNXT_MAX_PAGE_MODE_MTU);
		bp->flags &= ~BNXT_FLAG_AGG_RINGS;
		bp->flags |= BNXT_FLAG_NO_AGG_RINGS | BNXT_FLAG_RX_PAGE_MODE;
		bp->rx_dir = DMA_BIDIRECTIONAL;
		bp->rx_skb_func = bnxt_rx_page_skb;
		/* Disable LRO or GRO_HW */
		netdev_update_features(bp->dev);
	} else {
		bp->dev->max_mtu = bp->max_mtu;
		bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE;
		bp->rx_dir = DMA_FROM_DEVICE;
		bp->rx_skb_func = bnxt_rx_skb;
	}
	return 0;
}

static void bnxt_free_vnic_attributes(struct bnxt *bp)
{
	int i;
	struct bnxt_vnic_info *vnic;
	struct pci_dev *pdev = bp->pdev;

	if (!bp->vnic_info)
		return;

	for (i = 0; i < bp->nr_vnics; i++) {
		vnic = &bp->vnic_info[i];

		kfree(vnic->fw_grp_ids);
		vnic->fw_grp_ids = NULL;

		kfree(vnic->uc_list);
		vnic->uc_list = NULL;

		if (vnic->mc_list) {
			dma_free_coherent(&pdev->dev, vnic->mc_list_size,
					  vnic->mc_list, vnic->mc_list_mapping);
			vnic->mc_list = NULL;
		}

		if (vnic->rss_table) {
			dma_free_coherent(&pdev->dev, vnic->rss_table_size,
					  vnic->rss_table,
					  vnic->rss_table_dma_addr);
			vnic->rss_table = NULL;
		}

		vnic->rss_hash_key = NULL;
		vnic->flags = 0;
	}
}

static int bnxt_alloc_vnic_attributes(struct bnxt *bp)
{
	int i, rc = 0, size;
	struct bnxt_vnic_info *vnic;
	struct pci_dev *pdev = bp->pdev;
	int max_rings;

	for (i = 0; i < bp->nr_vnics; i++) {
		vnic = &bp->vnic_info[i];

		if (vnic->flags & BNXT_VNIC_UCAST_FLAG) {
			int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN;

			if (mem_size > 0) {
				vnic->uc_list = kmalloc(mem_size, GFP_KERNEL);
				if (!vnic->uc_list) {
					rc = -ENOMEM;
					goto out;
				}
			}
		}

		if (vnic->flags & BNXT_VNIC_MCAST_FLAG) {
			vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN;
			vnic->mc_list =
				dma_alloc_coherent(&pdev->dev,
						   vnic->mc_list_size,
						   &vnic->mc_list_mapping,
						   GFP_KERNEL);
			if (!vnic->mc_list) {
				rc = -ENOMEM;
				goto out;
			}
		}

		if (bp->flags & BNXT_FLAG_CHIP_P5)
			goto vnic_skip_grps;

		if (vnic->flags & BNXT_VNIC_RSS_FLAG)
			max_rings = bp->rx_nr_rings;
		else
			max_rings = 1;

		vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL);
		if (!vnic->fw_grp_ids) {
			rc = -ENOMEM;
			goto out;
		}
vnic_skip_grps:
		if ((bp->flags & BNXT_FLAG_NEW_RSS_CAP) &&
		    !(vnic->flags & BNXT_VNIC_RSS_FLAG))
			continue;

		/* Allocate rss table and hash key */
		size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16));
		if (bp->flags & BNXT_FLAG_CHIP_P5)
			size = L1_CACHE_ALIGN(BNXT_MAX_RSS_TABLE_SIZE_P5);

		vnic->rss_table_size = size + HW_HASH_KEY_SIZE;
		vnic->rss_table = dma_alloc_coherent(&pdev->dev,
						     vnic->rss_table_size,
						     &vnic->rss_table_dma_addr,
						     GFP_KERNEL);
		if (!vnic->rss_table) {
			rc = -ENOMEM;
			goto out;
		}

		vnic->rss_hash_key = ((void *)vnic->rss_table) + size;
		vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size;
	}
	return 0;

out:
	return rc;
}

static void bnxt_free_hwrm_resources(struct bnxt *bp)
{
	struct bnxt_hwrm_wait_token *token;

	dma_pool_destroy(bp->hwrm_dma_pool);
	bp->hwrm_dma_pool = NULL;

	rcu_read_lock();
	hlist_for_each_entry_rcu(token, &bp->hwrm_pending_list, node)
		WRITE_ONCE(token->state, BNXT_HWRM_CANCELLED);
	rcu_read_unlock();
}

static int bnxt_alloc_hwrm_resources(struct bnxt *bp)
{
	bp->hwrm_dma_pool = dma_pool_create("bnxt_hwrm", &bp->pdev->dev,
					    BNXT_HWRM_DMA_SIZE,
					    BNXT_HWRM_DMA_ALIGN, 0);
	if (!bp->hwrm_dma_pool)
		return -ENOMEM;

	INIT_HLIST_HEAD(&bp->hwrm_pending_list);

	return 0;
}

static void bnxt_free_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats)
{
	kfree(stats->hw_masks);
	stats->hw_masks = NULL;
	kfree(stats->sw_stats);
	stats->sw_stats = NULL;
	if (stats->hw_stats) {
		dma_free_coherent(&bp->pdev->dev, stats->len, stats->hw_stats,
				  stats->hw_stats_map);
		stats->hw_stats = NULL;
	}
}

static int bnxt_alloc_stats_mem(struct bnxt *bp, struct bnxt_stats_mem *stats,
				bool alloc_masks)
{
	stats->hw_stats = dma_alloc_coherent(&bp->pdev->dev, stats->len,
					     &stats->hw_stats_map, GFP_KERNEL);
	if (!stats->hw_stats)
		return -ENOMEM;

	stats->sw_stats = kzalloc(stats->len, GFP_KERNEL);
	if (!stats->sw_stats)
		goto stats_mem_err;

	if (alloc_masks) {
		stats->hw_masks = kzalloc(stats->len, GFP_KERNEL);
		if (!stats->hw_masks)
			goto stats_mem_err;
	}
	return 0;

stats_mem_err:
	bnxt_free_stats_mem(bp, stats);
	return -ENOMEM;
}

static void bnxt_fill_masks(u64 *mask_arr, u64 mask, int count)
{
	int i;

	for (i = 0; i < count; i++)
		mask_arr[i] = mask;
}

static void bnxt_copy_hw_masks(u64 *mask_arr, __le64 *hw_mask_arr, int count)
{
	int i;

	for (i = 0; i < count; i++)
		mask_arr[i] = le64_to_cpu(hw_mask_arr[i]);
}

static int bnxt_hwrm_func_qstat_ext(struct bnxt *bp,
				    struct bnxt_stats_mem *stats)
{
	struct hwrm_func_qstats_ext_output *resp;
	struct hwrm_func_qstats_ext_input *req;
	__le64 *hw_masks;
	int rc;

	if (!(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED) ||
	    !(bp->flags & BNXT_FLAG_CHIP_P5))
		return -EOPNOTSUPP;

	rc = hwrm_req_init(bp, req, HWRM_FUNC_QSTATS_EXT);
	if (rc)
		return rc;

	req->fid = cpu_to_le16(0xffff);
	req->flags = FUNC_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK;

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (!rc) {
		hw_masks = &resp->rx_ucast_pkts;
		bnxt_copy_hw_masks(stats->hw_masks, hw_masks, stats->len / 8);
	}
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags);
static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags);

static void bnxt_init_stats(struct bnxt *bp)
{
	struct bnxt_napi *bnapi = bp->bnapi[0];
	struct bnxt_cp_ring_info *cpr;
	struct bnxt_stats_mem *stats;
	__le64 *rx_stats, *tx_stats;
	int rc, rx_count, tx_count;
	u64 *rx_masks, *tx_masks;
	u64 mask;
	u8 flags;

	cpr = &bnapi->cp_ring;
	stats = &cpr->stats;
	rc = bnxt_hwrm_func_qstat_ext(bp, stats);
	if (rc) {
		if (bp->flags & BNXT_FLAG_CHIP_P5)
			mask = (1ULL << 48) - 1;
		else
			mask = -1ULL;
		bnxt_fill_masks(stats->hw_masks, mask, stats->len / 8);
	}
	if (bp->flags & BNXT_FLAG_PORT_STATS) {
		stats = &bp->port_stats;
		rx_stats = stats->hw_stats;
		rx_masks = stats->hw_masks;
		rx_count = sizeof(struct rx_port_stats) / 8;
		tx_stats = rx_stats + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
		tx_masks = rx_masks + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
		tx_count = sizeof(struct tx_port_stats) / 8;

		flags = PORT_QSTATS_REQ_FLAGS_COUNTER_MASK;
		rc = bnxt_hwrm_port_qstats(bp, flags);
		if (rc) {
			mask = (1ULL << 40) - 1;

			bnxt_fill_masks(rx_masks, mask, rx_count);
			bnxt_fill_masks(tx_masks, mask, tx_count);
		} else {
			bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count);
			bnxt_copy_hw_masks(tx_masks, tx_stats, tx_count);
			bnxt_hwrm_port_qstats(bp, 0);
		}
	}
	if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) {
		stats = &bp->rx_port_stats_ext;
		rx_stats = stats->hw_stats;
		rx_masks = stats->hw_masks;
		rx_count = sizeof(struct rx_port_stats_ext) / 8;
		stats = &bp->tx_port_stats_ext;
		tx_stats = stats->hw_stats;
		tx_masks = stats->hw_masks;
		tx_count = sizeof(struct tx_port_stats_ext) / 8;

		flags = PORT_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK;
		rc = bnxt_hwrm_port_qstats_ext(bp, flags);
		if (rc) {
			mask = (1ULL << 40) - 1;

			bnxt_fill_masks(rx_masks, mask, rx_count);
			if (tx_stats)
				bnxt_fill_masks(tx_masks, mask, tx_count);
		} else {
			bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count);
			if (tx_stats)
				bnxt_copy_hw_masks(tx_masks, tx_stats,
						   tx_count);
			bnxt_hwrm_port_qstats_ext(bp, 0);
		}
	}
}

static void bnxt_free_port_stats(struct bnxt *bp)
{
	bp->flags &= ~BNXT_FLAG_PORT_STATS;
	bp->flags &= ~BNXT_FLAG_PORT_STATS_EXT;

	bnxt_free_stats_mem(bp, &bp->port_stats);
	bnxt_free_stats_mem(bp, &bp->rx_port_stats_ext);
	bnxt_free_stats_mem(bp, &bp->tx_port_stats_ext);
}

static void bnxt_free_ring_stats(struct bnxt *bp)
{
	int i;

	if (!bp->bnapi)
		return;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;

		bnxt_free_stats_mem(bp, &cpr->stats);
	}
}

static int bnxt_alloc_stats(struct bnxt *bp)
{
	u32 size, i;
	int rc;

	size = bp->hw_ring_stats_size;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;

		cpr->stats.len = size;
		rc = bnxt_alloc_stats_mem(bp, &cpr->stats, !i);
		if (rc)
			return rc;

		cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
	}

	if (BNXT_VF(bp) || bp->chip_num == CHIP_NUM_58700)
		return 0;

	if (bp->port_stats.hw_stats)
		goto alloc_ext_stats;

	bp->port_stats.len = BNXT_PORT_STATS_SIZE;
	rc = bnxt_alloc_stats_mem(bp, &bp->port_stats, true);
	if (rc)
		return rc;

	bp->flags |= BNXT_FLAG_PORT_STATS;

alloc_ext_stats:
	/* Display extended statistics only if FW supports it */
	if (bp->hwrm_spec_code < 0x10804 || bp->hwrm_spec_code == 0x10900)
		if (!(bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED))
			return 0;

	if (bp->rx_port_stats_ext.hw_stats)
		goto alloc_tx_ext_stats;

	bp->rx_port_stats_ext.len = sizeof(struct rx_port_stats_ext);
	rc = bnxt_alloc_stats_mem(bp, &bp->rx_port_stats_ext, true);
	/* Extended stats are optional */
	if (rc)
		return 0;

alloc_tx_ext_stats:
	if (bp->tx_port_stats_ext.hw_stats)
		return 0;

	if (bp->hwrm_spec_code >= 0x10902 ||
	    (bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) {
		bp->tx_port_stats_ext.len = sizeof(struct tx_port_stats_ext);
		rc = bnxt_alloc_stats_mem(bp, &bp->tx_port_stats_ext, true);
		/* Extended stats are optional */
		if (rc)
			return 0;
	}
	bp->flags |= BNXT_FLAG_PORT_STATS_EXT;
	return 0;
}

static void bnxt_clear_ring_indices(struct bnxt *bp)
{
	int i;

	if (!bp->bnapi)
		return;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr;
		struct bnxt_rx_ring_info *rxr;
		struct bnxt_tx_ring_info *txr;

		if (!bnapi)
			continue;

		cpr = &bnapi->cp_ring;
		cpr->cp_raw_cons = 0;

		txr = bnapi->tx_ring;
		if (txr) {
			txr->tx_prod = 0;
			txr->tx_cons = 0;
		}

		rxr = bnapi->rx_ring;
		if (rxr) {
			rxr->rx_prod = 0;
			rxr->rx_agg_prod = 0;
			rxr->rx_sw_agg_prod = 0;
			rxr->rx_next_cons = 0;
		}
	}
}

static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit)
{
#ifdef CONFIG_RFS_ACCEL
	int i;

	/* Under rtnl_lock and all our NAPIs have been disabled.  It's
	 * safe to delete the hash table.
	 */
	for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
		struct hlist_head *head;
		struct hlist_node *tmp;
		struct bnxt_ntuple_filter *fltr;

		head = &bp->ntp_fltr_hash_tbl[i];
		hlist_for_each_entry_safe(fltr, tmp, head, hash) {
			hlist_del(&fltr->hash);
			kfree(fltr);
		}
	}
	if (irq_reinit) {
		kfree(bp->ntp_fltr_bmap);
		bp->ntp_fltr_bmap = NULL;
	}
	bp->ntp_fltr_count = 0;
#endif
}

static int bnxt_alloc_ntp_fltrs(struct bnxt *bp)
{
#ifdef CONFIG_RFS_ACCEL
	int i, rc = 0;

	if (!(bp->flags & BNXT_FLAG_RFS))
		return 0;

	for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++)
		INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]);

	bp->ntp_fltr_count = 0;
	bp->ntp_fltr_bmap = kcalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
				    sizeof(long),
				    GFP_KERNEL);

	if (!bp->ntp_fltr_bmap)
		rc = -ENOMEM;

	return rc;
#else
	return 0;
#endif
}

static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init)
{
	bnxt_free_vnic_attributes(bp);
	bnxt_free_tx_rings(bp);
	bnxt_free_rx_rings(bp);
	bnxt_free_cp_rings(bp);
	bnxt_free_all_cp_arrays(bp);
	bnxt_free_ntp_fltrs(bp, irq_re_init);
	if (irq_re_init) {
		bnxt_free_ring_stats(bp);
		if (!(bp->phy_flags & BNXT_PHY_FL_PORT_STATS_NO_RESET) ||
		    test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
			bnxt_free_port_stats(bp);
		bnxt_free_ring_grps(bp);
		bnxt_free_vnics(bp);
		kfree(bp->tx_ring_map);
		bp->tx_ring_map = NULL;
		kfree(bp->tx_ring);
		bp->tx_ring = NULL;
		kfree(bp->rx_ring);
		bp->rx_ring = NULL;
		kfree(bp->bnapi);
		bp->bnapi = NULL;
	} else {
		bnxt_clear_ring_indices(bp);
	}
}

static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init)
{
	int i, j, rc, size, arr_size;
	void *bnapi;

	if (irq_re_init) {
		/* Allocate bnapi mem pointer array and mem block for
		 * all queues
		 */
		arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) *
				bp->cp_nr_rings);
		size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi));
		bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL);
		if (!bnapi)
			return -ENOMEM;

		bp->bnapi = bnapi;
		bnapi += arr_size;
		for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) {
			bp->bnapi[i] = bnapi;
			bp->bnapi[i]->index = i;
			bp->bnapi[i]->bp = bp;
			if (bp->flags & BNXT_FLAG_CHIP_P5) {
				struct bnxt_cp_ring_info *cpr =
					&bp->bnapi[i]->cp_ring;

				cpr->cp_ring_struct.ring_mem.flags =
					BNXT_RMEM_RING_PTE_FLAG;
			}
		}

		bp->rx_ring = kcalloc(bp->rx_nr_rings,
				      sizeof(struct bnxt_rx_ring_info),
				      GFP_KERNEL);
		if (!bp->rx_ring)
			return -ENOMEM;

		for (i = 0; i < bp->rx_nr_rings; i++) {
			struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];

			if (bp->flags & BNXT_FLAG_CHIP_P5) {
				rxr->rx_ring_struct.ring_mem.flags =
					BNXT_RMEM_RING_PTE_FLAG;
				rxr->rx_agg_ring_struct.ring_mem.flags =
					BNXT_RMEM_RING_PTE_FLAG;
			}
			rxr->bnapi = bp->bnapi[i];
			bp->bnapi[i]->rx_ring = &bp->rx_ring[i];
		}

		bp->tx_ring = kcalloc(bp->tx_nr_rings,
				      sizeof(struct bnxt_tx_ring_info),
				      GFP_KERNEL);
		if (!bp->tx_ring)
			return -ENOMEM;

		bp->tx_ring_map = kcalloc(bp->tx_nr_rings, sizeof(u16),
					  GFP_KERNEL);

		if (!bp->tx_ring_map)
			return -ENOMEM;

		if (bp->flags & BNXT_FLAG_SHARED_RINGS)
			j = 0;
		else
			j = bp->rx_nr_rings;

		for (i = 0; i < bp->tx_nr_rings; i++, j++) {
			struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];

			if (bp->flags & BNXT_FLAG_CHIP_P5)
				txr->tx_ring_struct.ring_mem.flags =
					BNXT_RMEM_RING_PTE_FLAG;
			txr->bnapi = bp->bnapi[j];
			bp->bnapi[j]->tx_ring = txr;
			bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i;
			if (i >= bp->tx_nr_rings_xdp) {
				txr->txq_index = i - bp->tx_nr_rings_xdp;
				bp->bnapi[j]->tx_int = bnxt_tx_int;
			} else {
				bp->bnapi[j]->flags |= BNXT_NAPI_FLAG_XDP;
				bp->bnapi[j]->tx_int = bnxt_tx_int_xdp;
			}
		}

		rc = bnxt_alloc_stats(bp);
		if (rc)
			goto alloc_mem_err;
		bnxt_init_stats(bp);

		rc = bnxt_alloc_ntp_fltrs(bp);
		if (rc)
			goto alloc_mem_err;

		rc = bnxt_alloc_vnics(bp);
		if (rc)
			goto alloc_mem_err;
	}

	rc = bnxt_alloc_all_cp_arrays(bp);
	if (rc)
		goto alloc_mem_err;

	bnxt_init_ring_struct(bp);

	rc = bnxt_alloc_rx_rings(bp);
	if (rc)
		goto alloc_mem_err;

	rc = bnxt_alloc_tx_rings(bp);
	if (rc)
		goto alloc_mem_err;

	rc = bnxt_alloc_cp_rings(bp);
	if (rc)
		goto alloc_mem_err;

	bp->vnic_info[0].flags |= BNXT_VNIC_RSS_FLAG | BNXT_VNIC_MCAST_FLAG |
				  BNXT_VNIC_UCAST_FLAG;
	rc = bnxt_alloc_vnic_attributes(bp);
	if (rc)
		goto alloc_mem_err;
	return 0;

alloc_mem_err:
	bnxt_free_mem(bp, true);
	return rc;
}

static void bnxt_disable_int(struct bnxt *bp)
{
	int i;

	if (!bp->bnapi)
		return;

	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
		struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;

		if (ring->fw_ring_id != INVALID_HW_RING_ID)
			bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons);
	}
}

static int bnxt_cp_num_to_irq_num(struct bnxt *bp, int n)
{
	struct bnxt_napi *bnapi = bp->bnapi[n];
	struct bnxt_cp_ring_info *cpr;

	cpr = &bnapi->cp_ring;
	return cpr->cp_ring_struct.map_idx;
}

static void bnxt_disable_int_sync(struct bnxt *bp)
{
	int i;

	if (!bp->irq_tbl)
		return;

	atomic_inc(&bp->intr_sem);

	bnxt_disable_int(bp);
	for (i = 0; i < bp->cp_nr_rings; i++) {
		int map_idx = bnxt_cp_num_to_irq_num(bp, i);

		synchronize_irq(bp->irq_tbl[map_idx].vector);
	}
}

static void bnxt_enable_int(struct bnxt *bp)
{
	int i;

	atomic_set(&bp->intr_sem, 0);
	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;

		bnxt_db_nq_arm(bp, &cpr->cp_db, cpr->cp_raw_cons);
	}
}

int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap, int bmap_size,
			    bool async_only)
{
	DECLARE_BITMAP(async_events_bmap, 256);
	u32 *events = (u32 *)async_events_bmap;
	struct hwrm_func_drv_rgtr_output *resp;
	struct hwrm_func_drv_rgtr_input *req;
	u32 flags;
	int rc, i;

	rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_RGTR);
	if (rc)
		return rc;

	req->enables = cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE |
				   FUNC_DRV_RGTR_REQ_ENABLES_VER |
				   FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD);

	req->os_type = cpu_to_le16(FUNC_DRV_RGTR_REQ_OS_TYPE_LINUX);
	flags = FUNC_DRV_RGTR_REQ_FLAGS_16BIT_VER_MODE;
	if (bp->fw_cap & BNXT_FW_CAP_HOT_RESET)
		flags |= FUNC_DRV_RGTR_REQ_FLAGS_HOT_RESET_SUPPORT;
	if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
		flags |= FUNC_DRV_RGTR_REQ_FLAGS_ERROR_RECOVERY_SUPPORT |
			 FUNC_DRV_RGTR_REQ_FLAGS_MASTER_SUPPORT;
	req->flags = cpu_to_le32(flags);
	req->ver_maj_8b = DRV_VER_MAJ;
	req->ver_min_8b = DRV_VER_MIN;
	req->ver_upd_8b = DRV_VER_UPD;
	req->ver_maj = cpu_to_le16(DRV_VER_MAJ);
	req->ver_min = cpu_to_le16(DRV_VER_MIN);
	req->ver_upd = cpu_to_le16(DRV_VER_UPD);

	if (BNXT_PF(bp)) {
		u32 data[8];
		int i;

		memset(data, 0, sizeof(data));
		for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) {
			u16 cmd = bnxt_vf_req_snif[i];
			unsigned int bit, idx;

			idx = cmd / 32;
			bit = cmd % 32;
			data[idx] |= 1 << bit;
		}

		for (i = 0; i < 8; i++)
			req->vf_req_fwd[i] = cpu_to_le32(data[i]);

		req->enables |=
			cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD);
	}

	if (bp->fw_cap & BNXT_FW_CAP_OVS_64BIT_HANDLE)
		req->flags |= cpu_to_le32(
			FUNC_DRV_RGTR_REQ_FLAGS_FLOW_HANDLE_64BIT_MODE);

	memset(async_events_bmap, 0, sizeof(async_events_bmap));
	for (i = 0; i < ARRAY_SIZE(bnxt_async_events_arr); i++) {
		u16 event_id = bnxt_async_events_arr[i];

		if (event_id == ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY &&
		    !(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
			continue;
		__set_bit(bnxt_async_events_arr[i], async_events_bmap);
	}
	if (bmap && bmap_size) {
		for (i = 0; i < bmap_size; i++) {
			if (test_bit(i, bmap))
				__set_bit(i, async_events_bmap);
		}
	}
	for (i = 0; i < 8; i++)
		req->async_event_fwd[i] |= cpu_to_le32(events[i]);

	if (async_only)
		req->enables =
			cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD);

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (!rc) {
		set_bit(BNXT_STATE_DRV_REGISTERED, &bp->state);
		if (resp->flags &
		    cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED))
			bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE;
	}
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp)
{
	struct hwrm_func_drv_unrgtr_input *req;
	int rc;

	if (!test_and_clear_bit(BNXT_STATE_DRV_REGISTERED, &bp->state))
		return 0;

	rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_UNRGTR);
	if (rc)
		return rc;
	return hwrm_req_send(bp, req);
}

static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type)
{
	struct hwrm_tunnel_dst_port_free_input *req;
	int rc;

	if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN &&
	    bp->vxlan_fw_dst_port_id == INVALID_HW_RING_ID)
		return 0;
	if (tunnel_type == TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE &&
	    bp->nge_fw_dst_port_id == INVALID_HW_RING_ID)
		return 0;

	rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_FREE);
	if (rc)
		return rc;

	req->tunnel_type = tunnel_type;

	switch (tunnel_type) {
	case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN:
		req->tunnel_dst_port_id = cpu_to_le16(bp->vxlan_fw_dst_port_id);
		bp->vxlan_port = 0;
		bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID;
		break;
	case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE:
		req->tunnel_dst_port_id = cpu_to_le16(bp->nge_fw_dst_port_id);
		bp->nge_port = 0;
		bp->nge_fw_dst_port_id = INVALID_HW_RING_ID;
		break;
	default:
		break;
	}

	rc = hwrm_req_send(bp, req);
	if (rc)
		netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n",
			   rc);
	return rc;
}

static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port,
					   u8 tunnel_type)
{
	struct hwrm_tunnel_dst_port_alloc_output *resp;
	struct hwrm_tunnel_dst_port_alloc_input *req;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_TUNNEL_DST_PORT_ALLOC);
	if (rc)
		return rc;

	req->tunnel_type = tunnel_type;
	req->tunnel_dst_port_val = port;

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (rc) {
		netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n",
			   rc);
		goto err_out;
	}

	switch (tunnel_type) {
	case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN:
		bp->vxlan_port = port;
		bp->vxlan_fw_dst_port_id =
			le16_to_cpu(resp->tunnel_dst_port_id);
		break;
	case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE:
		bp->nge_port = port;
		bp->nge_fw_dst_port_id = le16_to_cpu(resp->tunnel_dst_port_id);
		break;
	default:
		break;
	}

err_out:
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id)
{
	struct hwrm_cfa_l2_set_rx_mask_input *req;
	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_CFA_L2_SET_RX_MASK);
	if (rc)
		return rc;

	req->vnic_id = cpu_to_le32(vnic->fw_vnic_id);
	req->num_mc_entries = cpu_to_le32(vnic->mc_list_count);
	req->mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping);
	req->mask = cpu_to_le32(vnic->rx_mask);
	return hwrm_req_send_silent(bp, req);
}

#ifdef CONFIG_RFS_ACCEL
static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp,
					    struct bnxt_ntuple_filter *fltr)
{
	struct hwrm_cfa_ntuple_filter_free_input *req;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_FREE);
	if (rc)
		return rc;

	req->ntuple_filter_id = fltr->filter_id;
	return hwrm_req_send(bp, req);
}

#define BNXT_NTP_FLTR_FLAGS					\
	(CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_MACADDR |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT |		\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT |		\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK |	\
	 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID)

#define BNXT_NTP_TUNNEL_FLTR_FLAG				\
		CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE

static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
					     struct bnxt_ntuple_filter *fltr)
{
	struct hwrm_cfa_ntuple_filter_alloc_output *resp;
	struct hwrm_cfa_ntuple_filter_alloc_input *req;
	struct flow_keys *keys = &fltr->fkeys;
	struct bnxt_vnic_info *vnic;
	u32 flags = 0;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_CFA_NTUPLE_FILTER_ALLOC);
	if (rc)
		return rc;

	req->l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[fltr->l2_fltr_idx];

	if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2) {
		flags = CFA_NTUPLE_FILTER_ALLOC_REQ_FLAGS_DEST_RFS_RING_IDX;
		req->dst_id = cpu_to_le16(fltr->rxq);
	} else {
		vnic = &bp->vnic_info[fltr->rxq + 1];
		req->dst_id = cpu_to_le16(vnic->fw_vnic_id);
	}
	req->flags = cpu_to_le32(flags);
	req->enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS);

	req->ethertype = htons(ETH_P_IP);
	memcpy(req->src_macaddr, fltr->src_mac_addr, ETH_ALEN);
	req->ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4;
	req->ip_protocol = keys->basic.ip_proto;

	if (keys->basic.n_proto == htons(ETH_P_IPV6)) {
		int i;

		req->ethertype = htons(ETH_P_IPV6);
		req->ip_addr_type =
			CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6;
		*(struct in6_addr *)&req->src_ipaddr[0] =
			keys->addrs.v6addrs.src;
		*(struct in6_addr *)&req->dst_ipaddr[0] =
			keys->addrs.v6addrs.dst;
		for (i = 0; i < 4; i++) {
			req->src_ipaddr_mask[i] = cpu_to_be32(0xffffffff);
			req->dst_ipaddr_mask[i] = cpu_to_be32(0xffffffff);
		}
	} else {
		req->src_ipaddr[0] = keys->addrs.v4addrs.src;
		req->src_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
		req->dst_ipaddr[0] = keys->addrs.v4addrs.dst;
		req->dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
	}
	if (keys->control.flags & FLOW_DIS_ENCAPSULATION) {
		req->enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG);
		req->tunnel_type =
			CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL;
	}

	req->src_port = keys->ports.src;
	req->src_port_mask = cpu_to_be16(0xffff);
	req->dst_port = keys->ports.dst;
	req->dst_port_mask = cpu_to_be16(0xffff);

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (!rc)
		fltr->filter_id = resp->ntuple_filter_id;
	hwrm_req_drop(bp, req);
	return rc;
}
#endif

static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx,
				     u8 *mac_addr)
{
	struct hwrm_cfa_l2_filter_alloc_output *resp;
	struct hwrm_cfa_l2_filter_alloc_input *req;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_ALLOC);
	if (rc)
		return rc;

	req->flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX);
	if (!BNXT_CHIP_TYPE_NITRO_A0(bp))
		req->flags |=
			cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST);
	req->dst_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_vnic_id);
	req->enables =
		cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR |
			    CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID |
			    CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK);
	memcpy(req->l2_addr, mac_addr, ETH_ALEN);
	req->l2_addr_mask[0] = 0xff;
	req->l2_addr_mask[1] = 0xff;
	req->l2_addr_mask[2] = 0xff;
	req->l2_addr_mask[3] = 0xff;
	req->l2_addr_mask[4] = 0xff;
	req->l2_addr_mask[5] = 0xff;

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (!rc)
		bp->vnic_info[vnic_id].fw_l2_filter_id[idx] =
							resp->l2_filter_id;
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp)
{
	struct hwrm_cfa_l2_filter_free_input *req;
	u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */
	int rc;

	/* Any associated ntuple filters will also be cleared by firmware. */
	rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_FREE);
	if (rc)
		return rc;
	hwrm_req_hold(bp, req);
	for (i = 0; i < num_of_vnics; i++) {
		struct bnxt_vnic_info *vnic = &bp->vnic_info[i];

		for (j = 0; j < vnic->uc_filter_count; j++) {
			req->l2_filter_id = vnic->fw_l2_filter_id[j];

			rc = hwrm_req_send(bp, req);
		}
		vnic->uc_filter_count = 0;
	}
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags)
{
	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
	u16 max_aggs = VNIC_TPA_CFG_REQ_MAX_AGGS_MAX;
	struct hwrm_vnic_tpa_cfg_input *req;
	int rc;

	if (vnic->fw_vnic_id == INVALID_HW_RING_ID)
		return 0;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_TPA_CFG);
	if (rc)
		return rc;

	if (tpa_flags) {
		u16 mss = bp->dev->mtu - 40;
		u32 nsegs, n, segs = 0, flags;

		flags = VNIC_TPA_CFG_REQ_FLAGS_TPA |
			VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA |
			VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE |
			VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN |
			VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ;
		if (tpa_flags & BNXT_FLAG_GRO)
			flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO;

		req->flags = cpu_to_le32(flags);

		req->enables =
			cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS |
				    VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS |
				    VNIC_TPA_CFG_REQ_ENABLES_MIN_AGG_LEN);

		/* Number of segs are log2 units, and first packet is not
		 * included as part of this units.
		 */
		if (mss <= BNXT_RX_PAGE_SIZE) {
			n = BNXT_RX_PAGE_SIZE / mss;
			nsegs = (MAX_SKB_FRAGS - 1) * n;
		} else {
			n = mss / BNXT_RX_PAGE_SIZE;
			if (mss & (BNXT_RX_PAGE_SIZE - 1))
				n++;
			nsegs = (MAX_SKB_FRAGS - n) / n;
		}

		if (bp->flags & BNXT_FLAG_CHIP_P5) {
			segs = MAX_TPA_SEGS_P5;
			max_aggs = bp->max_tpa;
		} else {
			segs = ilog2(nsegs);
		}
		req->max_agg_segs = cpu_to_le16(segs);
		req->max_aggs = cpu_to_le16(max_aggs);

		req->min_agg_len = cpu_to_le32(512);
	}
	req->vnic_id = cpu_to_le16(vnic->fw_vnic_id);

	return hwrm_req_send(bp, req);
}

static u16 bnxt_cp_ring_from_grp(struct bnxt *bp, struct bnxt_ring_struct *ring)
{
	struct bnxt_ring_grp_info *grp_info;

	grp_info = &bp->grp_info[ring->grp_idx];
	return grp_info->cp_fw_ring_id;
}

static u16 bnxt_cp_ring_for_rx(struct bnxt *bp, struct bnxt_rx_ring_info *rxr)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5) {
		struct bnxt_napi *bnapi = rxr->bnapi;
		struct bnxt_cp_ring_info *cpr;

		cpr = bnapi->cp_ring.cp_ring_arr[BNXT_RX_HDL];
		return cpr->cp_ring_struct.fw_ring_id;
	} else {
		return bnxt_cp_ring_from_grp(bp, &rxr->rx_ring_struct);
	}
}

static u16 bnxt_cp_ring_for_tx(struct bnxt *bp, struct bnxt_tx_ring_info *txr)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5) {
		struct bnxt_napi *bnapi = txr->bnapi;
		struct bnxt_cp_ring_info *cpr;

		cpr = bnapi->cp_ring.cp_ring_arr[BNXT_TX_HDL];
		return cpr->cp_ring_struct.fw_ring_id;
	} else {
		return bnxt_cp_ring_from_grp(bp, &txr->tx_ring_struct);
	}
}

static int bnxt_alloc_rss_indir_tbl(struct bnxt *bp)
{
	int entries;

	if (bp->flags & BNXT_FLAG_CHIP_P5)
		entries = BNXT_MAX_RSS_TABLE_ENTRIES_P5;
	else
		entries = HW_HASH_INDEX_SIZE;

	bp->rss_indir_tbl_entries = entries;
	bp->rss_indir_tbl = kmalloc_array(entries, sizeof(*bp->rss_indir_tbl),
					  GFP_KERNEL);
	if (!bp->rss_indir_tbl)
		return -ENOMEM;
	return 0;
}

static void bnxt_set_dflt_rss_indir_tbl(struct bnxt *bp)
{
	u16 max_rings, max_entries, pad, i;

	if (!bp->rx_nr_rings)
		return;

	if (BNXT_CHIP_TYPE_NITRO_A0(bp))
		max_rings = bp->rx_nr_rings - 1;
	else
		max_rings = bp->rx_nr_rings;

	max_entries = bnxt_get_rxfh_indir_size(bp->dev);

	for (i = 0; i < max_entries; i++)
		bp->rss_indir_tbl[i] = ethtool_rxfh_indir_default(i, max_rings);

	pad = bp->rss_indir_tbl_entries - max_entries;
	if (pad)
		memset(&bp->rss_indir_tbl[i], 0, pad * sizeof(u16));
}

static u16 bnxt_get_max_rss_ring(struct bnxt *bp)
{
	u16 i, tbl_size, max_ring = 0;

	if (!bp->rss_indir_tbl)
		return 0;

	tbl_size = bnxt_get_rxfh_indir_size(bp->dev);
	for (i = 0; i < tbl_size; i++)
		max_ring = max(max_ring, bp->rss_indir_tbl[i]);
	return max_ring;
}

int bnxt_get_nr_rss_ctxs(struct bnxt *bp, int rx_rings)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5)
		return DIV_ROUND_UP(rx_rings, BNXT_RSS_TABLE_ENTRIES_P5);
	if (BNXT_CHIP_TYPE_NITRO_A0(bp))
		return 2;
	return 1;
}

static void __bnxt_fill_hw_rss_tbl(struct bnxt *bp, struct bnxt_vnic_info *vnic)
{
	bool no_rss = !(vnic->flags & BNXT_VNIC_RSS_FLAG);
	u16 i, j;

	/* Fill the RSS indirection table with ring group ids */
	for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++) {
		if (!no_rss)
			j = bp->rss_indir_tbl[i];
		vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]);
	}
}

static void __bnxt_fill_hw_rss_tbl_p5(struct bnxt *bp,
				      struct bnxt_vnic_info *vnic)
{
	__le16 *ring_tbl = vnic->rss_table;
	struct bnxt_rx_ring_info *rxr;
	u16 tbl_size, i;

	tbl_size = bnxt_get_rxfh_indir_size(bp->dev);

	for (i = 0; i < tbl_size; i++) {
		u16 ring_id, j;

		j = bp->rss_indir_tbl[i];
		rxr = &bp->rx_ring[j];

		ring_id = rxr->rx_ring_struct.fw_ring_id;
		*ring_tbl++ = cpu_to_le16(ring_id);
		ring_id = bnxt_cp_ring_for_rx(bp, rxr);
		*ring_tbl++ = cpu_to_le16(ring_id);
	}
}

static void bnxt_fill_hw_rss_tbl(struct bnxt *bp, struct bnxt_vnic_info *vnic)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5)
		__bnxt_fill_hw_rss_tbl_p5(bp, vnic);
	else
		__bnxt_fill_hw_rss_tbl(bp, vnic);
}

static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss)
{
	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
	struct hwrm_vnic_rss_cfg_input *req;
	int rc;

	if ((bp->flags & BNXT_FLAG_CHIP_P5) ||
	    vnic->fw_rss_cos_lb_ctx[0] == INVALID_HW_RING_ID)
		return 0;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG);
	if (rc)
		return rc;

	if (set_rss) {
		bnxt_fill_hw_rss_tbl(bp, vnic);
		req->hash_type = cpu_to_le32(bp->rss_hash_cfg);
		req->hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT;
		req->ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr);
		req->hash_key_tbl_addr =
			cpu_to_le64(vnic->rss_hash_key_dma_addr);
	}
	req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]);
	return hwrm_req_send(bp, req);
}

static int bnxt_hwrm_vnic_set_rss_p5(struct bnxt *bp, u16 vnic_id, bool set_rss)
{
	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
	struct hwrm_vnic_rss_cfg_input *req;
	dma_addr_t ring_tbl_map;
	u32 i, nr_ctxs;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_CFG);
	if (rc)
		return rc;

	req->vnic_id = cpu_to_le16(vnic->fw_vnic_id);
	if (!set_rss)
		return hwrm_req_send(bp, req);

	bnxt_fill_hw_rss_tbl(bp, vnic);
	req->hash_type = cpu_to_le32(bp->rss_hash_cfg);
	req->hash_mode_flags = VNIC_RSS_CFG_REQ_HASH_MODE_FLAGS_DEFAULT;
	req->hash_key_tbl_addr = cpu_to_le64(vnic->rss_hash_key_dma_addr);
	ring_tbl_map = vnic->rss_table_dma_addr;
	nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings);

	hwrm_req_hold(bp, req);
	for (i = 0; i < nr_ctxs; ring_tbl_map += BNXT_RSS_TABLE_SIZE_P5, i++) {
		req->ring_grp_tbl_addr = cpu_to_le64(ring_tbl_map);
		req->ring_table_pair_index = i;
		req->rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[i]);
		rc = hwrm_req_send(bp, req);
		if (rc)
			goto exit;
	}

exit:
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id)
{
	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
	struct hwrm_vnic_plcmodes_cfg_input *req;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_PLCMODES_CFG);
	if (rc)
		return rc;

	req->flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT |
				 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 |
				 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6);
	req->enables =
		cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID |
			    VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID);
	/* thresholds not implemented in firmware yet */
	req->jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh);
	req->hds_threshold = cpu_to_le16(bp->rx_copy_thresh);
	req->vnic_id = cpu_to_le32(vnic->fw_vnic_id);
	return hwrm_req_send(bp, req);
}

static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, u16 vnic_id,
					u16 ctx_idx)
{
	struct hwrm_vnic_rss_cos_lb_ctx_free_input *req;

	if (hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_FREE))
		return;

	req->rss_cos_lb_ctx_id =
		cpu_to_le16(bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx]);

	hwrm_req_send(bp, req);
	bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = INVALID_HW_RING_ID;
}

static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp)
{
	int i, j;

	for (i = 0; i < bp->nr_vnics; i++) {
		struct bnxt_vnic_info *vnic = &bp->vnic_info[i];

		for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) {
			if (vnic->fw_rss_cos_lb_ctx[j] != INVALID_HW_RING_ID)
				bnxt_hwrm_vnic_ctx_free_one(bp, i, j);
		}
	}
	bp->rsscos_nr_ctxs = 0;
}

static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, u16 vnic_id, u16 ctx_idx)
{
	struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp;
	struct hwrm_vnic_rss_cos_lb_ctx_alloc_input *req;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC);
	if (rc)
		return rc;

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (!rc)
		bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] =
			le16_to_cpu(resp->rss_cos_lb_ctx_id);
	hwrm_req_drop(bp, req);

	return rc;
}

static u32 bnxt_get_roce_vnic_mode(struct bnxt *bp)
{
	if (bp->flags & BNXT_FLAG_ROCE_MIRROR_CAP)
		return VNIC_CFG_REQ_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_MODE;
	return VNIC_CFG_REQ_FLAGS_ROCE_DUAL_VNIC_MODE;
}

int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id)
{
	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
	struct hwrm_vnic_cfg_input *req;
	unsigned int ring = 0, grp_idx;
	u16 def_vlan = 0;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_CFG);
	if (rc)
		return rc;

	if (bp->flags & BNXT_FLAG_CHIP_P5) {
		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[0];

		req->default_rx_ring_id =
			cpu_to_le16(rxr->rx_ring_struct.fw_ring_id);
		req->default_cmpl_ring_id =
			cpu_to_le16(bnxt_cp_ring_for_rx(bp, rxr));
		req->enables =
			cpu_to_le32(VNIC_CFG_REQ_ENABLES_DEFAULT_RX_RING_ID |
				    VNIC_CFG_REQ_ENABLES_DEFAULT_CMPL_RING_ID);
		goto vnic_mru;
	}
	req->enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP);
	/* Only RSS support for now TBD: COS & LB */
	if (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID) {
		req->rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]);
		req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE |
					   VNIC_CFG_REQ_ENABLES_MRU);
	} else if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) {
		req->rss_rule =
			cpu_to_le16(bp->vnic_info[0].fw_rss_cos_lb_ctx[0]);
		req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE |
					   VNIC_CFG_REQ_ENABLES_MRU);
		req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_RSS_DFLT_CR_MODE);
	} else {
		req->rss_rule = cpu_to_le16(0xffff);
	}

	if (BNXT_CHIP_TYPE_NITRO_A0(bp) &&
	    (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID)) {
		req->cos_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[1]);
		req->enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_COS_RULE);
	} else {
		req->cos_rule = cpu_to_le16(0xffff);
	}

	if (vnic->flags & BNXT_VNIC_RSS_FLAG)
		ring = 0;
	else if (vnic->flags & BNXT_VNIC_RFS_FLAG)
		ring = vnic_id - 1;
	else if ((vnic_id == 1) && BNXT_CHIP_TYPE_NITRO_A0(bp))
		ring = bp->rx_nr_rings - 1;

	grp_idx = bp->rx_ring[ring].bnapi->index;
	req->dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id);
	req->lb_rule = cpu_to_le16(0xffff);
vnic_mru:
	req->mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + VLAN_HLEN);

	req->vnic_id = cpu_to_le16(vnic->fw_vnic_id);
#ifdef CONFIG_BNXT_SRIOV
	if (BNXT_VF(bp))
		def_vlan = bp->vf.vlan;
#endif
	if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan)
		req->flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE);
	if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP))
		req->flags |= cpu_to_le32(bnxt_get_roce_vnic_mode(bp));

	return hwrm_req_send(bp, req);
}

static void bnxt_hwrm_vnic_free_one(struct bnxt *bp, u16 vnic_id)
{
	if (bp->vnic_info[vnic_id].fw_vnic_id != INVALID_HW_RING_ID) {
		struct hwrm_vnic_free_input *req;

		if (hwrm_req_init(bp, req, HWRM_VNIC_FREE))
			return;

		req->vnic_id =
			cpu_to_le32(bp->vnic_info[vnic_id].fw_vnic_id);

		hwrm_req_send(bp, req);
		bp->vnic_info[vnic_id].fw_vnic_id = INVALID_HW_RING_ID;
	}
}

static void bnxt_hwrm_vnic_free(struct bnxt *bp)
{
	u16 i;

	for (i = 0; i < bp->nr_vnics; i++)
		bnxt_hwrm_vnic_free_one(bp, i);
}

static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id,
				unsigned int start_rx_ring_idx,
				unsigned int nr_rings)
{
	unsigned int i, j, grp_idx, end_idx = start_rx_ring_idx + nr_rings;
	struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
	struct hwrm_vnic_alloc_output *resp;
	struct hwrm_vnic_alloc_input *req;
	int rc;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_ALLOC);
	if (rc)
		return rc;

	if (bp->flags & BNXT_FLAG_CHIP_P5)
		goto vnic_no_ring_grps;

	/* map ring groups to this vnic */
	for (i = start_rx_ring_idx, j = 0; i < end_idx; i++, j++) {
		grp_idx = bp->rx_ring[i].bnapi->index;
		if (bp->grp_info[grp_idx].fw_grp_id == INVALID_HW_RING_ID) {
			netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n",
				   j, nr_rings);
			break;
		}
		vnic->fw_grp_ids[j] = bp->grp_info[grp_idx].fw_grp_id;
	}

vnic_no_ring_grps:
	for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++)
		vnic->fw_rss_cos_lb_ctx[i] = INVALID_HW_RING_ID;
	if (vnic_id == 0)
		req->flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT);

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (!rc)
		vnic->fw_vnic_id = le32_to_cpu(resp->vnic_id);
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp)
{
	struct hwrm_vnic_qcaps_output *resp;
	struct hwrm_vnic_qcaps_input *req;
	int rc;

	bp->hw_ring_stats_size = sizeof(struct ctx_hw_stats);
	bp->flags &= ~(BNXT_FLAG_NEW_RSS_CAP | BNXT_FLAG_ROCE_MIRROR_CAP);
	if (bp->hwrm_spec_code < 0x10600)
		return 0;

	rc = hwrm_req_init(bp, req, HWRM_VNIC_QCAPS);
	if (rc)
		return rc;

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	if (!rc) {
		u32 flags = le32_to_cpu(resp->flags);

		if (!(bp->flags & BNXT_FLAG_CHIP_P5) &&
		    (flags & VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP))
			bp->flags |= BNXT_FLAG_NEW_RSS_CAP;
		if (flags &
		    VNIC_QCAPS_RESP_FLAGS_ROCE_MIRRORING_CAPABLE_VNIC_CAP)
			bp->flags |= BNXT_FLAG_ROCE_MIRROR_CAP;

		/* Older P5 fw before EXT_HW_STATS support did not set
		 * VLAN_STRIP_CAP properly.
		 */
		if ((flags & VNIC_QCAPS_RESP_FLAGS_VLAN_STRIP_CAP) ||
		    (BNXT_CHIP_P5_THOR(bp) &&
		     !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED)))
			bp->fw_cap |= BNXT_FW_CAP_VLAN_RX_STRIP;
		bp->max_tpa_v2 = le16_to_cpu(resp->max_aggs_supported);
		if (bp->max_tpa_v2) {
			if (BNXT_CHIP_P5_THOR(bp))
				bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P5;
			else
				bp->hw_ring_stats_size = BNXT_RING_STATS_SIZE_P5_SR2;
		}
	}
	hwrm_req_drop(bp, req);
	return rc;
}

static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp)
{
	struct hwrm_ring_grp_alloc_output *resp;
	struct hwrm_ring_grp_alloc_input *req;
	int rc;
	u16 i;

	if (bp->flags & BNXT_FLAG_CHIP_P5)
		return 0;

	rc = hwrm_req_init(bp, req, HWRM_RING_GRP_ALLOC);
	if (rc)
		return rc;

	resp = hwrm_req_hold(bp, req);
	for (i = 0; i < bp->rx_nr_rings; i++) {
		unsigned int grp_idx = bp->rx_ring[i].bnapi->index;

		req->cr = cpu_to_le16(bp->grp_info[grp_idx].cp_fw_ring_id);
		req->rr = cpu_to_le16(bp->grp_info[grp_idx].rx_fw_ring_id);
		req->ar = cpu_to_le16(bp->grp_info[grp_idx].agg_fw_ring_id);
		req->sc = cpu_to_le16(bp->grp_info[grp_idx].fw_stats_ctx);

		rc = hwrm_req_send(bp, req);

		if (rc)
			break;

		bp->grp_info[grp_idx].fw_grp_id =
			le32_to_cpu(resp->ring_group_id);
	}
	hwrm_req_drop(bp, req);
	return rc;
}

static void bnxt_hwrm_ring_grp_free(struct bnxt *bp)
{
	struct hwrm_ring_grp_free_input *req;
	u16 i;

	if (!bp->grp_info || (bp->flags & BNXT_FLAG_CHIP_P5))
		return;

	if (hwrm_req_init(bp, req, HWRM_RING_GRP_FREE))
		return;

	hwrm_req_hold(bp, req);
	for (i = 0; i < bp->cp_nr_rings; i++) {
		if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID)
			continue;
		req->ring_group_id =
			cpu_to_le32(bp->grp_info[i].fw_grp_id);

		hwrm_req_send(bp, req);
		bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID;
	}
	hwrm_req_drop(bp, req);
}

static int hwrm_ring_alloc_send_msg(struct bnxt *bp,
				    struct bnxt_ring_struct *ring,
				    u32 ring_type, u32 map_index)
{
	struct hwrm_ring_alloc_output *resp;
	struct hwrm_ring_alloc_input *req;
	struct bnxt_ring_mem_info *rmem = &ring->ring_mem;
	struct bnxt_ring_grp_info *grp_info;
	int rc, err = 0;
	u16 ring_id;

	rc = hwrm_req_init(bp, req, HWRM_RING_ALLOC);
	if (rc)
		goto exit;

	req->enables = 0;
	if (rmem->nr_pages > 1) {
		req->page_tbl_addr = cpu_to_le64(rmem->pg_tbl_map);
		/* Page size is in log2 units */
		req->page_size = BNXT_PAGE_SHIFT;
		req->page_tbl_depth = 1;
	} else {
		req->page_tbl_addr =  cpu_to_le64(rmem->dma_arr[0]);
	}
	req->fbo = 0;
	/* Association of ring index with doorbell index and MSIX number */
	req->logical_id = cpu_to_le16(map_index);

	switch (ring_type) {
	case HWRM_RING_ALLOC_TX: {
		struct bnxt_tx_ring_info *txr;

		txr = container_of(ring, struct bnxt_tx_ring_info,
				   tx_ring_struct);
		req->ring_type = RING_ALLOC_REQ_RING_TYPE_TX;
		/* Association of transmit ring with completion ring */
		grp_info = &bp->grp_info[ring->grp_idx];
		req->cmpl_ring_id = cpu_to_le16(bnxt_cp_ring_for_tx(bp, txr));
		req->length = cpu_to_le32(bp->tx_ring_mask + 1);
		req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
		req->queue_id = cpu_to_le16(ring->queue_id);
		break;
	}
	case HWRM_RING_ALLOC_RX:
		req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
		req->length = cpu_to_le32(bp->rx_ring_mask + 1);
		if (bp->flags & BNXT_FLAG_CHIP_P5) {
			u16 flags = 0;

			/* Association of rx ring with stats context */
			grp_info = &bp->grp_info[ring->grp_idx];
			req->rx_buf_size = cpu_to_le16(bp->rx_buf_use_size);
			req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
			req->enables |= cpu_to_le32(
				RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID);
			if (NET_IP_ALIGN == 2)
				flags = RING_ALLOC_REQ_FLAGS_RX_SOP_PAD;
			req->flags = cpu_to_le16(flags);
		}
		break;
	case HWRM_RING_ALLOC_AGG:
		if (bp->flags & BNXT_FLAG_CHIP_P5) {
			req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX_AGG;
			/* Association of agg ring with rx ring */
			grp_info = &bp->grp_info[ring->grp_idx];
			req->rx_ring_id = cpu_to_le16(grp_info->rx_fw_ring_id);
			req->rx_buf_size = cpu_to_le16(BNXT_RX_PAGE_SIZE);
			req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
			req->enables |= cpu_to_le32(
				RING_ALLOC_REQ_ENABLES_RX_RING_ID_VALID |
				RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID);
		} else {
			req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
		}
		req->length = cpu_to_le32(bp->rx_agg_ring_mask + 1);
		break;
	case HWRM_RING_ALLOC_CMPL:
		req->ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL;
		req->length = cpu_to_le32(bp->cp_ring_mask + 1);
		if (bp->flags & BNXT_FLAG_CHIP_P5) {
			/* Association of cp ring with nq */
			grp_info = &bp->grp_info[map_index];
			req->nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id);
			req->cq_handle = cpu_to_le64(ring->handle);
			req->enables |= cpu_to_le32(
				RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID);
		} else if (bp->flags & BNXT_FLAG_USING_MSIX) {
			req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX;
		}
		break;
	case HWRM_RING_ALLOC_NQ:
		req->ring_type = RING_ALLOC_REQ_RING_TYPE_NQ;
		req->length = cpu_to_le32(bp->cp_ring_mask + 1);
		if (bp->flags & BNXT_FLAG_USING_MSIX)
			req->int_mode = RING_ALLOC_REQ_INT_MODE_MSIX;
		break;
	default:
		netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n",
			   ring_type);
		return -1;
	}

	resp = hwrm_req_hold(bp, req);
	rc = hwrm_req_send(bp, req);
	err = le16_to_cpu(resp->error_code);
	ring_id = le16_to_cpu(resp->ring_id);
	hwrm_req_drop(bp, req);

exit:
	if (rc || err) {
		netdev_err(bp->dev, "hwrm_ring_alloc type %d failed. rc:%x err:%x\n",
			   ring_type, rc, err);
		return -EIO;
	}
	ring->fw_ring_id = ring_id;
	return rc;
}

static int bnxt_hwrm_set_async_event_cr(struct bnxt *bp, int idx)
{
	int rc;

	if (BNXT_PF(bp)) {
		struct hwrm_func_cfg_input *req;

		rc = hwrm_req_init(bp, req, HWRM_FUNC_CFG);
		if (rc)
			return rc;

		req->fid = cpu_to_le16(0xffff);
		req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR);
		req->async_event_cr = cpu_to_le16(idx);
		return hwrm_req_send(bp, req);
	} else {
		struct hwrm_func_vf_cfg_input *req;

		rc = hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG);
		if (rc)
			return rc;

		req->enables =
			cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_ASYNC_EVENT_CR);
		req->async_event_cr = cpu_to_le16(idx);
		return hwrm_req_send(bp, req);
	}
}

static void bnxt_set_db(struct bnxt *bp, struct bnxt_db_info *db, u32 ring_type,
			u32 map_idx, u32 xid)
{
	if (bp->flags & BNXT_FLAG_CHIP_P5) {
		if (BNXT_PF(bp))
			db->doorbell = bp->bar1 + DB_PF_OFFSET_P5;
		else
			db->doorbell = bp->bar1 + DB_VF_OFFSET_P5;
		switch (ring_type) {
		case HWRM_RING_ALLOC_TX:
			db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SQ;
			break;
		case HWRM_RING_ALLOC_RX:
		case HWRM_RING_ALLOC_AGG:
			db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SRQ;
			break;
		case HWRM_RING_ALLOC_CMPL:
			db->db_key64 = DBR_PATH_L2;
			break;
		case HWRM_RING_ALLOC_NQ:
			db->db_key64 = DBR_PATH_L2;
			break;
		}
		db->db_key64 |= (u64)xid << DBR_XID_SFT;
	} else {
		db->doorbell = bp->bar1 + map_idx * 0x80;
		switch (ring_type) {
		case HWRM_RING_ALLOC_TX:
			db->db_key32 = DB_KEY_TX;
			break;
		case HWRM_RING_ALLOC_RX:
		case HWRM_RING_ALLOC_AGG:
			db->db_key32 = DB_KEY_RX;
			break;
		case HWRM_RING_ALLOC_CMPL:
			db->db_key32 = DB_KEY_CP;
			break;
		}
	}
}

static int bnxt_hwrm_ring_alloc(struct bnxt *bp)
{
	bool agg_rings = !!(bp->flags & BNXT_FLAG_AGG_RINGS);
	int i, rc = 0;
	u32 type;

	if (bp->flags & BNXT_FLAG_CHIP_P5)
		type = HWRM_RING_ALLOC_NQ;
	else
		type = HWRM_RING_ALLOC_CMPL;
	for (i = 0; i < bp->cp_nr_rings; i++) {
		struct bnxt_napi *bnapi = bp->bnapi[i];
		struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
		struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
		u32 map_idx = ring->map_idx;
		unsigned int vector;

		vector = bp->irq_tbl[map_idx].vector;
		disable_irq_nosync(vector);
		rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
		if (rc) {
			enable_irq(vector);
			goto err_out;
		}
		bnxt_set_db(bp, &cpr->cp_db, type, map_idx, ring->fw_ring_id);
		bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons);
		enable_irq(vector);
		bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id;

		if (!i) {
			rc = bnxt_hwrm_set_async_event_cr(bp, ring->fw_ring_id);
			if (rc)
				netdev_warn(bp->dev, "Failed to set async event completion ring.\n");
		}
	}

	type = HWRM_RING_ALLOC_TX;
	for (i = 0; i < bp->tx_nr_rings; i++) {
		struct bnxt_tx_ring_info *txr = &bp->tx_ring[i];
		struct bnxt_ring_struct *ring;
		u32 map_idx;

		if (bp->flags & BNXT_FLAG_CHIP_P5) {
			struct bnxt_napi *bnapi = txr->bnapi;
			struct bnxt_cp_ring_info *cpr, *cpr2;
			u32 type2 = HWRM_RING_ALLOC_CMPL;

			cpr = &bnapi->cp_ring;
			cpr2 = cpr->cp_ring_arr[BNXT_TX_HDL];
			ring = &cpr2->cp_ring_struct;
			ring->handle = BNXT_TX_HDL;
			map_idx = bnapi->index;
			rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx);
			if (rc)
				goto err_out;
			bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx,
				    ring->fw_ring_id);
			bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons);
		}
		ring = &txr->tx_ring_struct;
		map_idx = i;
		rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
		if (rc)
			goto err_out;
		bnxt_set_db(bp, &txr->tx_db, type, map_idx, ring->fw_ring_id);
	}

	type = HWRM_RING_ALLOC_RX;
	for (i = 0; i < bp->rx_nr_rings; i++) {
		struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
		struct bnxt_ring_struct *ring = &rxr->rx_ring_struct;
		struct bnxt_napi *bnapi = rxr->bnapi;
		u32 map_idx = bnapi->index;

		rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
		if (rc)
			goto err_out;
		bnxt_set_db(bp, &rxr->rx_db, type, map_idx, ring->fw_ring_id);
		/* If we have agg rings, post agg buffers first. */
		if (!agg_rings)
			bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
		bp->grp_info[map_idx].rx_fw_ring_id = ring->fw_ring_id;
		if (bp->flags & BNXT_FLAG_CHIP_P5) {
			struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
			u32 type2 = HWRM_RING_ALLOC_CMPL;
			struct bnxt_cp_ring_info *cpr2;

			cpr2 = cpr->cp_ring_arr[BNXT_RX_HDL];
			ring = &cpr2->cp_ring_struct;
			ring->handle = BNXT_RX_HDL;
			rc = hwrm_ring_alloc_send_msg(bp, ring, type2, map_idx);
			if (rc)
				goto err_out;
			bnxt_set_db(bp, &cpr2->cp_db, type2, map_idx,
				    ring->fw_ring_id);
			bnxt_db_cq(bp, &cpr2->cp_db, cpr2->cp_raw_cons);
		}
	}

	if (agg_rings) {
		type = HWRM_RING_ALLOC_AGG;
		for (i = 0; i < bp->rx_nr_rings; i++) {
			struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
			struct bnxt_ring_struct *ring =
						&rxr->rx_agg_ring_struct;