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android-kvm / linux / 9c9d1896fa92e05e7af5a7a47e335f834aa4248c / . / drivers / net / ethernet / broadcom / bnxt / bnxt.c
blob: f46eefb5a029252e87c156f8f2f4b77ceae0003e [file] [log] [blame]
/* 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/gro.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/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 <linux/align.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
/* indexed by enum board_idx */
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,
ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE,
};
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);
dev_core_stats_tx_dropped_inc(dev);
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_tcp_all_headers(skb);
else
hdr_len = skb_tcp_all_headers(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;
dev_core_stats_tx_dropped_inc(dev);
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;
}
return page;
}
static inline u8 *__bnxt_alloc_rx_frag(struct bnxt *bp, dma_addr_t *mapping,
gfp_t gfp)
{
u8 *data;
struct pci_dev *pdev = bp->pdev;
if (gfp == GFP_ATOMIC)
data = napi_alloc_frag(bp->rx_buf_size);
else
data = netdev_alloc_frag(bp->rx_buf_size);
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)) {
skb_free_frag(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;
mapping += bp->rx_dma_offset;
rx_buf->data = page;
rx_buf->data_ptr = page_address(page) + bp->rx_offset;
} else {
u8 *data = __bnxt_alloc_rx_frag(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 (BNXT_RX_PAGE_MODE(bp)) {
page = __bnxt_alloc_rx_page(bp, &mapping, rxr, gfp);
if (!page)
return -ENOMEM;
} else {
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_multi_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 len = offset_and_len & 0xffff;
struct page *page = data;
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;
}
dma_addr -= bp->rx_dma_offset;
dma_unmap_page_attrs(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir,
DMA_ATTR_WEAK_ORDERING);
skb = build_skb(page_address(page), BNXT_PAGE_MODE_BUF_SIZE +
bp->rx_dma_offset);
if (!skb) {
__free_page(page);
return NULL;
}
skb_mark_for_recycle(skb);
skb_reserve(skb, bp->rx_dma_offset);
__skb_put(skb, len);
return skb;
}
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);
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;
}
skb_mark_for_recycle(skb);
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, bp->rx_buf_size);
dma_unmap_single_attrs(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
bp->rx_dir, DMA_ATTR_WEAK_ORDERING);
if (!skb) {
skb_free_frag(data);
return NULL;
}
skb_reserve(skb, bp->rx_offset);
skb_put(skb, offset_and_len & 0xffff);
return skb;
}
static u32 __bnxt_rx_agg_pages(struct bnxt *bp,
struct bnxt_cp_ring_info *cpr,
struct skb_shared_info *shinfo,
u16 idx, u32 agg_bufs, bool tpa,
struct xdp_buff *xdp)
{
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;
u32 i, total_frag_len = 0;
bool p5_tpa = false;
if ((bp->flags & BNXT_FLAG_CHIP_P5) && tpa)
p5_tpa = true;
for (i = 0; i < agg_bufs; i++) {
skb_frag_t *frag = &shinfo->frags[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_frag_off_set(frag, cons_rx_buf->offset);
skb_frag_size_set(frag, frag_len);
__skb_frag_set_page(frag, cons_rx_buf->page);
shinfo->nr_frags = i + 1;
__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 (xdp && page_is_pfmemalloc(page))
xdp_buff_set_frag_pfmemalloc(xdp);
if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) {
unsigned int nr_frags;
nr_frags = --shinfo->nr_frags;
__skb_frag_set_page(&shinfo->frags[nr_frags], NULL);
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 0;
}
dma_unmap_page_attrs(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE,
bp->rx_dir,
DMA_ATTR_WEAK_ORDERING);
total_frag_len += frag_len;
prod = NEXT_RX_AGG(prod);
}
rxr->rx_agg_prod = prod;
return total_frag_len;
}
static struct sk_buff *bnxt_rx_agg_pages_skb(struct bnxt *bp,
struct bnxt_cp_ring_info *cpr,
struct sk_buff *skb, u16 idx,
u32 agg_bufs, bool tpa)
{
struct skb_shared_info *shinfo = skb_shinfo(skb);
u32 total_frag_len = 0;
total_frag_len = __bnxt_rx_agg_pages(bp, cpr, shinfo, idx,
agg_bufs, tpa, NULL);
if (!total_frag_len) {
dev_kfree_skb(skb);
return NULL;
}
skb->data_len += total_frag_len;
skb->len += total_frag_len;
skb->truesize += PAGE_SIZE * agg_bufs;
return skb;
}
static u32 bnxt_rx_agg_pages_xdp(struct bnxt *bp,
struct bnxt_cp_ring_info *cpr,
struct xdp_buff *xdp, u16 idx,
u32 agg_bufs, bool tpa)
{
struct skb_shared_info *shinfo = xdp_get_shared_info_from_buff(xdp);
u32 total_frag_len = 0;
if (!xdp_buff_has_frags(xdp))
shinfo->nr_frags = 0;
total_frag_len = __bnxt_rx_agg_pages(bp, cpr, shinfo,
idx, agg_bufs, tpa, xdp);
if (total_frag_len) {
xdp_buff_set_frags_flag(xdp);
shinfo->nr_frags = agg_bufs;
shinfo->xdp_frags_size = total_frag_len;
}
return total_frag_len;
}
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_frag(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, bp->rx_buf_size);
dma_unmap_single_attrs(&bp->pdev->dev, mapping,
bp->rx_buf_use_size, bp->rx_dir,
DMA_ATTR_WEAK_ORDERING);
if (!skb) {
skb_free_frag(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_agg_pages_skb(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;
bool xdp_active = false;
dma_addr_t dma_addr;
struct sk_buff *skb;
struct xdp_buff xdp;
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_xdp_attached(bp, rxr)) {
bnxt_xdp_buff_init(bp, rxr, cons, &data_ptr, &len, &xdp);
if (agg_bufs) {
u32 frag_len = bnxt_rx_agg_pages_xdp(bp, cpr, &xdp,
cp_cons, agg_bufs,
false);
if (!frag_len) {
cpr->sw_stats.rx.rx_oom_discards += 1;
rc = -ENOMEM;
goto next_rx;
}
}
xdp_active = true;
}
if (xdp_active) {
if (bnxt_rx_xdp(bp, rxr, cons, xdp, data, &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) {
if (!xdp_active)
bnxt_reuse_rx_agg_bufs(cpr, cp_cons, 0,
agg_bufs, false);
else
bnxt_xdp_buff_frags_free(rxr, &xdp);
}
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) {
if (!xdp_active) {
skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, cp_cons, agg_bufs, false);
if (!skb) {
cpr->sw_stats.rx.rx_oom_discards += 1;
rc = -ENOMEM;
goto next_rx;
}
} else {
skb = bnxt_xdp_build_skb(bp, skb, agg_bufs, rxr->page_pool, &xdp, rxcmp1);
if (!skb) {
/* we should be able to free the old skb here */
bnxt_xdp_buff_frags_free(rxr, &xdp);
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) || bp->ptp_all_rx_tstamp) {
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)
{
u32 err_type = BNXT_EVENT_ERROR_REPORT_TYPE(data1);
switch (err_type) {
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;
case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_PAUSE_STORM:
netdev_warn(bp->dev, "Pause Storm detected!\n");
break;
case ASYNC_EVENT_CMPL_ERROR_REPORT_BASE_EVENT_DATA1_ERROR_TYPE_DOORBELL_DROP_THRESHOLD:
netdev_warn(bp->dev, "One or more MMIO doorbells dropped by the device!\n");
break;
default:
netdev_err(bp->dev, "FW reported unknown error type %u\n",
err_type);
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)
#define BNXT_EVENT_PHC_EVENT_TYPE(data1) \
(((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_MASK) >>\
ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_SFT)
#define BNXT_EVENT_PHC_RTC_UPDATE(data1) \
(((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_MASK) >>\
ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_SFT)
#define BNXT_PHC_BITS 48
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);
netdev_dbg(bp->dev, "hwrm event 0x%x {0x%x, 0x%x}\n",
event_id, data1, 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 *type_str = "Solicited";
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_FW_ACTIVATION(data1)) {
set_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state);
} else if (EVENT_DATA1_RESET_NOTIFY_FATAL(data1)) {
type_str = "Fatal";
bp->fw_health->fatalities++;
set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
} else if (data2 && BNXT_FW_STATUS_HEALTHY !=
EVENT_DATA2_RESET_NOTIFY_FW_STATUS_CODE(data2)) {
type_str = "Non-fatal";
bp->fw_health->survivals++;
set_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state);
}
netif_warn(bp, hw, bp->dev,
"%s firmware reset event, data1: 0x%x, data2: 0x%x, min wait %u ms, max wait %u ms\n",
type_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;
char *status_desc = "healthy";
u32 status;
if (!fw_health)
goto async_event_process_exit;
if (!EVENT_DATA1_RECOVERY_ENABLED(data1)) {
fw_health->enabled = false;
netif_info(bp, drv, bp->dev, "Driver recovery watchdog is disabled\n");
break;
}
fw_health->primary = 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);
status = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
if (status != BNXT_FW_STATUS_HEALTHY)
status_desc = "unhealthy";
netif_info(bp, drv, bp->dev,
"Driver recovery watchdog, role: %s, firmware status: 0x%x (%s), resets: %u\n",
fw_health->primary ? "primary" : "backup", status,
status_desc, fw_health->last_fw_reset_cnt);
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_PHC_UPDATE: {
switch (BNXT_EVENT_PHC_EVENT_TYPE(data1)) {
case ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_PHC_RTC_UPDATE:
if (bp->fw_cap & BNXT_FW_CAP_PTP_RTC) {
struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;
u64 ns;
spin_lock_bh(&ptp->ptp_lock);
bnxt_ptp_update_current_time(bp);
ns = (((u64)BNXT_EVENT_PHC_RTC_UPDATE(data1) <<
BNXT_PHC_BITS) | ptp->current_time);
bnxt_ptp_rtc_timecounter_init(ptp, ns);
spin_unlock_bh(&ptp->ptp_lock);
}
break;
}
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();
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;
bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
}
if (bnapi->events & BNXT_AGG_EVENT) {
struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_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;
struct bnxt_cp_ring_info *cpr_rx;
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);
goto poll_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;
/* No more budget for RX work */
if (budget && work_done >= budget && idx == BNXT_RX_HDL)
break;
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);
}
poll_done:
cpr_rx = cpr->cp_ring_arr[BNXT_RX_HDL];
if (cpr_rx && (bp->flags & BNXT_FLAG_DIM)) {
struct dim_sample dim_sample = {};
dim_update_sample(cpr->event_ctr,
cpr_rx->rx_packets,
cpr_rx->rx_bytes,
&dim_sample);
net_dim(&cpr->dim, dim_sample);
}
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;
if (!txr->tx_buf_ring)
continue;
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;
skb_free_frag(data);
}
skip_rx_tpa_free:
if (!rxr->rx_buf_ring)
goto skip_rx_buf_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);
skb_free_frag(data);
}
}
skip_rx_buf_free:
if (!rxr->rx_agg_ring)
goto skip_rx_agg_free;
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;
if (BNXT_RX_PAGE_MODE(bp)) {
dma_unmap_page_attrs(&pdev->dev, rx_agg_buf->mapping,
BNXT_RX_PAGE_SIZE, bp->rx_dir,
DMA_ATTR_WEAK_ORDERING);
rx_agg_buf->page = NULL;
__clear_bit(i, rxr->rx_agg_bmap);
page_pool_recycle_direct(rxr->page_pool, page);
} else {
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);
}
}
skip_rx_agg_free:
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;
if (!rmem->pg_arr)
goto skip_pages;
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;
}
skip_pages:
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;
spin_lock_init(&txr->xdp_tx_lock);
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)
{
struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
kfree(cpr->cp_desc_ring);
cpr->cp_desc_ring = NULL;
ring->ring_mem.pg_arr = NULL;
kfree(cpr->cp_desc_mapping);
cpr->cp_desc_mapping = NULL;
ring->ring_mem.dma_arr = 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_frag(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,
BNXT_MIN_TX_DESC_CNT);
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 + ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) +
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;
if (BNXT_RX_PAGE_MODE(bp)) {
rx_space = BNXT_PAGE_MODE_BUF_SIZE;
rx_size = BNXT_MAX_PAGE_MODE_MTU;
} else {
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) {
bp->flags &= ~BNXT_FLAG_AGG_RINGS;
bp->flags |= BNXT_FLAG_RX_PAGE_MODE;
if (bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU) {
bp->flags |= BNXT_FLAG_JUMBO;
bp->rx_skb_func = bnxt_rx_multi_page_skb;
bp->dev->max_mtu =
min_t(u16, bp->max_mtu, BNXT_MAX_MTU);
} else {
bp->flags |= BNXT_FLAG_NO_AGG_RINGS;
bp->rx_skb_func = bnxt_rx_page_skb;
bp->dev->max_mtu =
min_t(u16, bp->max_mtu, BNXT_MAX_PAGE_MODE_MTU);
}
bp->rx_dir = DMA_BIDIRECTIONAL;
/* 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) {
bitmap_free(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 = bitmap_zalloc(BNXT_NTP_FLTR_MAX_FLTR, 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;
}
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);
if (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST) {
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,
const 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);
req->enables = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID);
if (BNXT_RX_PAGE_MODE(bp) && !BNXT_RX_JUMBO_MODE(bp)) {
req->flags |= cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 |
VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6);
req->enables |=
cpu_to_le32(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;
u32 grp_idx = ring->grp_idx;
u32 map_idx = grp_idx + bp->rx_nr_rings;
rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
if (rc)
goto err_out;
bnxt_set_db(bp, &rxr->rx_agg_db, type, map_idx,
ring->fw_ring_id);
bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
bp->grp_info[grp_idx].agg_fw_ring_id = ring->fw_ring_id;
}
}
err_out:
return rc;
}
static int hwrm_ring_free_send_msg(struct bnxt *bp,
struct bnxt_ring_struct *ring,
u32 ring_type, int cmpl_ring_id)
{
struct hwrm_ring_free_output *resp;
struct hwrm_ring_free_input *req;
u16 error_code = 0;
int rc;
if (BNXT_NO_FW_ACCESS(bp))
return 0;
rc = hwrm_req_init(bp, req, HWRM_RING_FREE);
if (rc)
goto exit;
req->cmpl_ring = cpu_to_le16(cmpl_ring_id);
req->ring_type = ring_type;
req->ring_id = cpu_to_le16(ring->fw_ring_id);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
error_code = le16_to_cpu(resp->error_code);
hwrm_req_drop(bp, req);
exit:
if (rc || error_code) {
netdev_err(bp->dev, "hwrm_ring_free type %d failed. rc:%x err:%x\n",
ring_type, rc, error_code);
return -EIO;
}
return 0;
}
static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path)
{
u32 type;
int i;
if (!bp->bnapi)
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 = &txr->tx_ring_struct;
if (ring->fw_ring_id != INVALID_HW_RING_ID) {
u32 cmpl_ring_id = bnxt_cp_ring_for_tx(bp, txr);
hwrm_ring_free_send_msg(bp, ring,
RING_FREE_REQ_RING_TYPE_TX,
close_path ? cmpl_ring_id :
INVALID_HW_RING_ID);
ring->fw_ring_id = INVALID_HW_RING_ID;
}
}
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;
u32 grp_idx = rxr->bnapi->index;
if (ring->fw_ring_id != INVALID_HW_RING_ID) {
u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr);
hwrm_ring_free_send_msg(bp, ring,
RING_FREE_REQ_RING_TYPE_RX,
close_path ? cmpl_ring_id :
INVALID_HW_RING_ID);
ring->fw_ring_id = INVALID_HW_RING_ID;
bp->grp_info[grp_idx].rx_fw_ring_id =
INVALID_HW_RING_ID;
}
}
if (bp->flags & BNXT_FLAG_CHIP_P5)
type = RING_FREE_REQ_RING_TYPE_RX_AGG;
else
type = RING_FREE_REQ_RING_TYPE_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_agg_ring_struct;
u32 grp_idx = rxr->bnapi->index;
if (ring->fw_ring_id != INVALID_HW_RING_ID) {
u32 cmpl_ring_id = bnxt_cp_ring_for_rx(bp, rxr);
hwrm_ring_free_send_msg(bp, ring, type,
close_path ? cmpl_ring_id :
INVALID_HW_RING_ID);
ring->fw_ring_id = INVALID_HW_RING_ID;
bp->grp_info[grp_idx].agg_fw_ring_id =
INVALID_HW_RING_ID;
}
}
/* The completion rings are about to be freed. After that the
* IRQ doorbell will not work anymore. So we need to disable
* IRQ here.
*/
bnxt_disable_int_sync(bp);
if (bp->flags & BNXT_FLAG_CHIP_P5)
type = RING_FREE_REQ_RING_TYPE_NQ;
else
type = RING_FREE_REQ_RING_TYPE_L2_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;
int j;
for (j = 0; j < 2; j++) {
struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];
if (cpr2) {
ring = &cpr2->cp_ring_struct;
if (ring->fw_ring_id == INVALID_HW_RING_ID)
continue;
hwrm_ring_free_send_msg(bp, ring,
RING_FREE_REQ_RING_TYPE_L2_CMPL,
INVALID_HW_RING_ID);
ring->fw_ring_id = INVALID_HW_RING_ID;
}
}
ring = &cpr->cp_ring_struct;
if (ring->fw_ring_id != INVALID_HW_RING_ID) {
hwrm_ring_free_send_msg(bp, ring, type,
INVALID_HW_RING_ID);
ring->fw_ring_id = INVALID_HW_RING_ID;
bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID;
}
}
}
static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max,
bool shared);
static int bnxt_hwrm_get_rings(struct bnxt *bp)
{
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
struct hwrm_func_qcfg_output *resp;
struct hwrm_func_qcfg_input *req;
int rc;
if (bp->hwrm_spec_code < 0x10601)
return 0;
rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG);
if (rc)
return rc;
req->fid = cpu_to_le16(0xffff);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc) {
hwrm_req_drop(bp, req);
return rc;
}
hw_resc->resv_tx_rings = le16_to_cpu(resp->alloc_tx_rings);
if (BNXT_NEW_RM(bp)) {
u16 cp, stats;
hw_resc->resv_rx_rings = le16_to_cpu(resp->alloc_rx_rings);
hw_resc->resv_hw_ring_grps =
le32_to_cpu(resp->alloc_hw_ring_grps);
hw_resc->resv_vnics = le16_to_cpu(resp->alloc_vnics);
cp = le16_to_cpu(resp->alloc_cmpl_rings);
stats = le16_to_cpu(resp->alloc_stat_ctx);
hw_resc->resv_irqs = cp;
if (bp->flags & BNXT_FLAG_CHIP_P5) {
int rx = hw_resc->resv_rx_rings;
int tx = hw_resc->resv_tx_rings;
if (bp->flags & BNXT_FLAG_AGG_RINGS)
rx >>= 1;
if (cp < (rx + tx)) {
bnxt_trim_rings(bp, &rx, &tx, cp, false);
if (bp->flags & BNXT_FLAG_AGG_RINGS)
rx <<= 1;
hw_resc->resv_rx_rings = rx;
hw_resc->resv_tx_rings = tx;
}
hw_resc->resv_irqs = le16_to_cpu(resp->alloc_msix);
hw_resc->resv_hw_ring_grps = rx;
}
hw_resc->resv_cp_rings = cp;
hw_resc->resv_stat_ctxs = stats;
}
hwrm_req_drop(bp, req);
return 0;
}
int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings)
{
struct hwrm_func_qcfg_output *resp;
struct hwrm_func_qcfg_input *req;
int rc;
if (bp->hwrm_spec_code < 0x10601)
return 0;
rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG);
if (rc)
return rc;
req->fid = cpu_to_le16(fid);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (!rc)
*tx_rings = le16_to_cpu(resp->alloc_tx_rings);
hwrm_req_drop(bp, req);
return rc;
}
static bool bnxt_rfs_supported(struct bnxt *bp);
static struct hwrm_func_cfg_input *
__bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
int ring_grps, int cp_rings, int stats, int vnics)
{
struct hwrm_func_cfg_input *req;
u32 enables = 0;
if (hwrm_req_init(bp, req, HWRM_FUNC_CFG))
return NULL;
req->fid = cpu_to_le16(0xffff);
enables |= tx_rings ? FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS : 0;
req->num_tx_rings = cpu_to_le16(tx_rings);
if (BNXT_NEW_RM(bp)) {
enables |= rx_rings ? FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS : 0;
enables |= stats ? FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0;
if (bp->flags & BNXT_FLAG_CHIP_P5) {
enables |= cp_rings ? FUNC_CFG_REQ_ENABLES_NUM_MSIX : 0;
enables |= tx_rings + ring_grps ?
FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
enables |= rx_rings ?
FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0;
} else {
enables |= cp_rings ?
FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
enables |= ring_grps ?
FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS |
FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0;
}
enables |= vnics ? FUNC_CFG_REQ_ENABLES_NUM_VNICS : 0;
req->num_rx_rings = cpu_to_le16(rx_rings);
if (bp->flags & BNXT_FLAG_CHIP_P5) {
req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps);
req->num_msix = cpu_to_le16(cp_rings);
req->num_rsscos_ctxs =
cpu_to_le16(DIV_ROUND_UP(ring_grps, 64));
} else {
req->num_cmpl_rings = cpu_to_le16(cp_rings);
req->num_hw_ring_grps = cpu_to_le16(ring_grps);
req->num_rsscos_ctxs = cpu_to_le16(1);
if (!(bp->flags & BNXT_FLAG_NEW_RSS_CAP) &&
bnxt_rfs_supported(bp))
req->num_rsscos_ctxs =
cpu_to_le16(ring_grps + 1);
}
req->num_stat_ctxs = cpu_to_le16(stats);
req->num_vnics = cpu_to_le16(vnics);
}
req->enables = cpu_to_le32(enables);
return req;
}
static struct hwrm_func_vf_cfg_input *
__bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
int ring_grps, int cp_rings, int stats, int vnics)
{
struct hwrm_func_vf_cfg_input *req;
u32 enables = 0;
if (hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG))
return NULL;
enables |= tx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_TX_RINGS : 0;
enables |= rx_rings ? FUNC_VF_CFG_REQ_ENABLES_NUM_RX_RINGS |
FUNC_VF_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS : 0;
enables |= stats ? FUNC_VF_CFG_REQ_ENABLES_NUM_STAT_CTXS : 0;
if (bp->flags & BNXT_FLAG_CHIP_P5) {
enables |= tx_rings + ring_grps ?
FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
} else {
enables |= cp_rings ?
FUNC_VF_CFG_REQ_ENABLES_NUM_CMPL_RINGS : 0;
enables |= ring_grps ?
FUNC_VF_CFG_REQ_ENABLES_NUM_HW_RING_GRPS : 0;
}
enables |= vnics ? FUNC_VF_CFG_REQ_ENABLES_NUM_VNICS : 0;
enables |= FUNC_VF_CFG_REQ_ENABLES_NUM_L2_CTXS;
req->num_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
req->num_tx_rings = cpu_to_le16(tx_rings);
req->num_rx_rings = cpu_to_le16(rx_rings);
if (bp->flags & BNXT_FLAG_CHIP_P5) {
req->num_cmpl_rings = cpu_to_le16(tx_rings + ring_grps);
req->num_rsscos_ctxs = cpu_to_le16(DIV_ROUND_UP(ring_grps, 64));
} else {
req->num_cmpl_rings = cpu_to_le16(cp_rings);
req->num_hw_ring_grps = cpu_to_le16(ring_grps);
req->num_rsscos_ctxs = cpu_to_le16(BNXT_VF_MAX_RSS_CTX);
}
req->num_stat_ctxs = cpu_to_le16(stats);
req->num_vnics = cpu_to_le16(vnics);
req->enables = cpu_to_le32(enables);
return req;
}
static int
bnxt_hwrm_reserve_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
int ring_grps, int cp_rings, int stats, int vnics)
{
struct hwrm_func_cfg_input *req;
int rc;
req = __bnxt_hwrm_reserve_pf_rings(bp, tx_rings, rx_rings, ring_grps,
cp_rings, stats, vnics);
if (!req)
return -ENOMEM;
if (!req->enables) {
hwrm_req_drop(bp, req);
return 0;
}
rc = hwrm_req_send(bp, req);
if (rc)
return rc;
if (bp->hwrm_spec_code < 0x10601)
bp->hw_resc.resv_tx_rings = tx_rings;
return bnxt_hwrm_get_rings(bp);
}
static int
bnxt_hwrm_reserve_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
int ring_grps, int cp_rings, int stats, int vnics)
{
struct hwrm_func_vf_cfg_input *req;
int rc;
if (!BNXT_NEW_RM(bp)) {
bp->hw_resc.resv_tx_rings = tx_rings;
return 0;
}
req = __bnxt_hwrm_reserve_vf_rings(bp, tx_rings, rx_rings, ring_grps,
cp_rings, stats, vnics);
if (!req)
return -ENOMEM;
rc = hwrm_req_send(bp, req);
if (rc)
return rc;
return bnxt_hwrm_get_rings(bp);
}
static int bnxt_hwrm_reserve_rings(struct bnxt *bp, int tx, int rx, int grp,
int cp, int stat, int vnic)
{
if (BNXT_PF(bp))
return bnxt_hwrm_reserve_pf_rings(bp, tx, rx, grp, cp, stat,
vnic);
else
return bnxt_hwrm_reserve_vf_rings(bp, tx, rx, grp, cp, stat,
vnic);
}
int bnxt_nq_rings_in_use(struct bnxt *bp)
{
int cp = bp->cp_nr_rings;
int ulp_msix, ulp_base;
ulp_msix = bnxt_get_ulp_msix_num(bp);
if (ulp_msix) {
ulp_base = bnxt_get_ulp_msix_base(bp);
cp += ulp_msix;
if ((ulp_base + ulp_msix) > cp)
cp = ulp_base + ulp_msix;
}
return cp;
}
static int bnxt_cp_rings_in_use(struct bnxt *bp)
{
int cp;
if (!(bp->flags & BNXT_FLAG_CHIP_P5))
return bnxt_nq_rings_in_use(bp);
cp = bp->tx_nr_rings + bp->rx_nr_rings;
return cp;
}
static int bnxt_get_func_stat_ctxs(struct bnxt *bp)
{
int ulp_stat = bnxt_get_ulp_stat_ctxs(bp);
int cp = bp->cp_nr_rings;
if (!ulp_stat)
return cp;
if (bnxt_nq_rings_in_use(bp) > cp + bnxt_get_ulp_msix_num(bp))
return bnxt_get_ulp_msix_base(bp) + ulp_stat;
return cp + ulp_stat;
}
/* Check if a default RSS map needs to be setup. This function is only
* used on older firmware that does not require reserving RX rings.
*/
static void bnxt_check_rss_tbl_no_rmgr(struct bnxt *bp)
{
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
/* The RSS map is valid for RX rings set to resv_rx_rings */
if (hw_resc->resv_rx_rings != bp->rx_nr_rings) {
hw_resc->resv_rx_rings = bp->rx_nr_rings;
if (!netif_is_rxfh_configured(bp->dev))
bnxt_set_dflt_rss_indir_tbl(bp);
}
}
static bool bnxt_need_reserve_rings(struct bnxt *bp)
{
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
int cp = bnxt_cp_rings_in_use(bp);
int nq = bnxt_nq_rings_in_use(bp);
int rx = bp->rx_nr_rings, stat;
int vnic = 1, grp = rx;
if (hw_resc->resv_tx_rings != bp->tx_nr_rings &&
bp->hwrm_spec_code >= 0x10601)
return true;
/* Old firmware does not need RX ring reservations but we still
* need to setup a default RSS map when needed. With new firmware
* we go through RX ring reservations first and then set up the
* RSS map for the successfully reserved RX rings when needed.
*/
if (!BNXT_NEW_RM(bp)) {
bnxt_check_rss_tbl_no_rmgr(bp);
return false;
}
if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5))
vnic = rx + 1;
if (bp->flags & BNXT_FLAG_AGG_RINGS)
rx <<= 1;
stat = bnxt_get_func_stat_ctxs(bp);
if (hw_resc->resv_rx_rings != rx || hw_resc->resv_cp_rings != cp ||
hw_resc->resv_vnics != vnic || hw_resc->resv_stat_ctxs != stat ||
(hw_resc->resv_hw_ring_grps != grp &&
!(bp->flags & BNXT_FLAG_CHIP_P5)))
return true;
if ((bp->flags & BNXT_FLAG_CHIP_P5) && BNXT_PF(bp) &&
hw_resc->resv_irqs != nq)
return true;
return false;
}
static int __bnxt_reserve_rings(struct bnxt *bp)
{
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
int cp = bnxt_nq_rings_in_use(bp);
int tx = bp->tx_nr_rings;
int rx = bp->rx_nr_rings;
int grp, rx_rings, rc;
int vnic = 1, stat;
bool sh = false;
if (!bnxt_need_reserve_rings(bp))
return 0;
if (bp->flags & BNXT_FLAG_SHARED_RINGS)
sh = true;
if ((bp->flags & BNXT_FLAG_RFS) && !(bp->flags & BNXT_FLAG_CHIP_P5))
vnic = rx + 1;
if (bp->flags & BNXT_FLAG_AGG_RINGS)
rx <<= 1;
grp = bp->rx_nr_rings;
stat = bnxt_get_func_stat_ctxs(bp);
rc = bnxt_hwrm_reserve_rings(bp, tx, rx, grp, cp, stat, vnic);
if (rc)
return rc;
tx = hw_resc->resv_tx_rings;
if (BNXT_NEW_RM(bp)) {
rx = hw_resc->resv_rx_rings;
cp = hw_resc->resv_irqs;
grp = hw_resc->resv_hw_ring_grps;
vnic = hw_resc->resv_vnics;
stat = hw_resc->resv_stat_ctxs;
}
rx_rings = rx;
if (bp->flags & BNXT_FLAG_AGG_RINGS) {
if (rx >= 2) {
rx_rings = rx >> 1;
} else {
if (netif_running(bp->dev))
return -ENOMEM;
bp->flags &= ~BNXT_FLAG_AGG_RINGS;
bp->flags |= BNXT_FLAG_NO_AGG_RINGS;
bp->dev->hw_features &= ~NETIF_F_LRO;
bp->dev->features &= ~NETIF_F_LRO;
bnxt_set_ring_params(bp);
}
}
rx_rings = min_t(int, rx_rings, grp);
cp = min_t(int, cp, bp->cp_nr_rings);
if (stat > bnxt_get_ulp_stat_ctxs(bp))
stat -= bnxt_get_ulp_stat_ctxs(bp);
cp = min_t(int, cp, stat);
rc = bnxt_trim_rings(bp, &rx_rings, &tx, cp, sh);
if (bp->flags & BNXT_FLAG_AGG_RINGS)
rx = rx_rings << 1;
cp = sh ? max_t(int, tx, rx_rings) : tx + rx_rings;
bp->tx_nr_rings = tx;
/* If we cannot reserve all the RX rings, reset the RSS map only
* if absolutely necessary
*/
if (rx_rings != bp->rx_nr_rings) {
netdev_warn(bp->dev, "Able to reserve only %d out of %d requested RX rings\n",
rx_rings, bp->rx_nr_rings);
if (netif_is_rxfh_configured(bp->dev) &&
(bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings) !=
bnxt_get_nr_rss_ctxs(bp, rx_rings) ||
bnxt_get_max_rss_ring(bp) >= rx_rings)) {
netdev_warn(bp->dev, "RSS table entries reverting to default\n");
bp->dev->priv_flags &= ~IFF_RXFH_CONFIGURED;
}
}
bp->rx_nr_rings = rx_rings;
bp->cp_nr_rings = cp;
if (!tx || !rx || !cp || !grp || !vnic || !stat)
return -ENOMEM;
if (!netif_is_rxfh_configured(bp->dev))
bnxt_set_dflt_rss_indir_tbl(bp);
return rc;
}
static int bnxt_hwrm_check_vf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
int ring_grps, int cp_rings, int stats,
int vnics)
{
struct hwrm_func_vf_cfg_input *req;
u32 flags;
if (!BNXT_NEW_RM(bp))
return 0;
req = __bnxt_hwrm_reserve_vf_rings(bp, tx_rings, rx_rings, ring_grps,
cp_rings, stats, vnics);
flags = FUNC_VF_CFG_REQ_FLAGS_TX_ASSETS_TEST |
FUNC_VF_CFG_REQ_FLAGS_RX_ASSETS_TEST |
FUNC_VF_CFG_REQ_FLAGS_CMPL_ASSETS_TEST |
FUNC_VF_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST |
FUNC_VF_CFG_REQ_FLAGS_VNIC_ASSETS_TEST |
FUNC_VF_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST;
if (!(bp->flags & BNXT_FLAG_CHIP_P5))
flags |= FUNC_VF_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST;
req->flags = cpu_to_le32(flags);
return hwrm_req_send_silent(bp, req);
}
static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
int ring_grps, int cp_rings, int stats,
int vnics)
{
struct hwrm_func_cfg_input *req;
u32 flags;
req = __bnxt_hwrm_reserve_pf_rings(bp, tx_rings, rx_rings, ring_grps,
cp_rings, stats, vnics);
flags = FUNC_CFG_REQ_FLAGS_TX_ASSETS_TEST;
if (BNXT_NEW_RM(bp)) {
flags |= FUNC_CFG_REQ_FLAGS_RX_ASSETS_TEST |
FUNC_CFG_REQ_FLAGS_CMPL_ASSETS_TEST |
FUNC_CFG_REQ_FLAGS_STAT_CTX_ASSETS_TEST |
FUNC_CFG_REQ_FLAGS_VNIC_ASSETS_TEST;
if (bp->flags & BNXT_FLAG_CHIP_P5)
flags |= FUNC_CFG_REQ_FLAGS_RSSCOS_CTX_ASSETS_TEST |
FUNC_CFG_REQ_FLAGS_NQ_ASSETS_TEST;
else
flags |= FUNC_CFG_REQ_FLAGS_RING_GRP_ASSETS_TEST;
}
req->flags = cpu_to_le32(flags);
return hwrm_req_send_silent(bp, req);
}
static int bnxt_hwrm_check_rings(struct bnxt *bp, int tx_rings, int rx_rings,
int ring_grps, int cp_rings, int stats,
int vnics)
{
if (bp->hwrm_spec_code < 0x10801)
return 0;
if (BNXT_PF(bp))
return bnxt_hwrm_check_pf_rings(bp, tx_rings, rx_rings,
ring_grps, cp_rings, stats,
vnics);
return bnxt_hwrm_check_vf_rings(bp, tx_rings, rx_rings, ring_grps,
cp_rings, stats, vnics);
}
static void bnxt_hwrm_coal_params_qcaps(struct bnxt *bp)
{
struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
struct hwrm_ring_aggint_qcaps_output *resp;
struct hwrm_ring_aggint_qcaps_input *req;
int rc;
coal_cap->cmpl_params = BNXT_LEGACY_COAL_CMPL_PARAMS;
coal_cap->num_cmpl_dma_aggr_max = 63;
coal_cap->num_cmpl_dma_aggr_during_int_max = 63;
coal_cap->cmpl_aggr_dma_tmr_max = 65535;
coal_cap->cmpl_aggr_dma_tmr_during_int_max = 65535;
coal_cap->int_lat_tmr_min_max = 65535;
coal_cap->int_lat_tmr_max_max = 65535;
coal_cap->num_cmpl_aggr_int_max = 65535;
coal_cap->timer_units = 80;
if (bp->hwrm_spec_code < 0x10902)
return;
if (hwrm_req_init(bp, req, HWRM_RING_AGGINT_QCAPS))
return;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send_silent(bp, req);
if (!rc) {
coal_cap->cmpl_params = le32_to_cpu(resp->cmpl_params);
coal_cap->nq_params = le32_to_cpu(resp->nq_params);
coal_cap->num_cmpl_dma_aggr_max =
le16_to_cpu(resp->num_cmpl_dma_aggr_max);
coal_cap->num_cmpl_dma_aggr_during_int_max =
le16_to_cpu(resp->num_cmpl_dma_aggr_during_int_max);
coal_cap->cmpl_aggr_dma_tmr_max =
le16_to_cpu(resp->cmpl_aggr_dma_tmr_max);
coal_cap->cmpl_aggr_dma_tmr_during_int_max =
le16_to_cpu(resp->cmpl_aggr_dma_tmr_during_int_max);
coal_cap->int_lat_tmr_min_max =
le16_to_cpu(resp->int_lat_tmr_min_max);
coal_cap->int_lat_tmr_max_max =
le16_to_cpu(resp->int_lat_tmr_max_max);
coal_cap->num_cmpl_aggr_int_max =
le16_to_cpu(resp->num_cmpl_aggr_int_max);
coal_cap->timer_units = le16_to_cpu(resp->timer_units);
}
hwrm_req_drop(bp, req);
}
static u16 bnxt_usec_to_coal_tmr(struct bnxt *bp, u16 usec)
{
struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
return usec * 1000 / coal_cap->timer_units;
}
static void bnxt_hwrm_set_coal_params(struct bnxt *bp,
struct bnxt_coal *hw_coal,
struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req)
{
struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
u16 val, tmr, max, flags = hw_coal->flags;
u32 cmpl_params = coal_cap->cmpl_params;
max = hw_coal->bufs_per_record * 128;
if (hw_coal->budget)
max = hw_coal->bufs_per_record * hw_coal->budget;
max = min_t(u16, max, coal_cap->num_cmpl_aggr_int_max);
val = clamp_t(u16, hw_coal->coal_bufs, 1, max);
req->num_cmpl_aggr_int = cpu_to_le16(val);
val = min_t(u16, val, coal_cap->num_cmpl_dma_aggr_max);
req->num_cmpl_dma_aggr = cpu_to_le16(val);
val = clamp_t(u16, hw_coal->coal_bufs_irq, 1,
coal_cap->num_cmpl_dma_aggr_during_int_max);
req->num_cmpl_dma_aggr_during_int = cpu_to_le16(val);
tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks);
tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_max_max);
req->int_lat_tmr_max = cpu_to_le16(tmr);
/* min timer set to 1/2 of interrupt timer */
if (cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_INT_LAT_TMR_MIN) {
val = tmr / 2;
val = clamp_t(u16, val, 1, coal_cap->int_lat_tmr_min_max);
req->int_lat_tmr_min = cpu_to_le16(val);
req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE);
}
/* buf timer set to 1/4 of interrupt timer */
val = clamp_t(u16, tmr / 4, 1, coal_cap->cmpl_aggr_dma_tmr_max);
req->cmpl_aggr_dma_tmr = cpu_to_le16(val);
if (cmpl_params &
RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_NUM_CMPL_DMA_AGGR_DURING_INT) {
tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks_irq);
val = clamp_t(u16, tmr, 1,
coal_cap->cmpl_aggr_dma_tmr_during_int_max);
req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(val);
req->enables |=
cpu_to_le16(BNXT_COAL_CMPL_AGGR_TMR_DURING_INT_ENABLE);
}
if ((cmpl_params & RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_RING_IDLE) &&
hw_coal->idle_thresh && hw_coal->coal_ticks < hw_coal->idle_thresh)
flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE;
req->flags = cpu_to_le16(flags);
req->enables |= cpu_to_le16(BNXT_COAL_CMPL_ENABLES);
}
static int __bnxt_hwrm_set_coal_nq(struct bnxt *bp, struct bnxt_napi *bnapi,
struct bnxt_coal *hw_coal)
{
struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req;
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
u32 nq_params = coal_cap->nq_params;
u16 tmr;
int rc;
if (!(nq_params & RING_AGGINT_QCAPS_RESP_NQ_PARAMS_INT_LAT_TMR_MIN))
return 0;
rc = hwrm_req_init(bp, req, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS);
if (rc)
return rc;
req->ring_id = cpu_to_le16(cpr->cp_ring_struct.fw_ring_id);
req->flags =
cpu_to_le16(RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_IS_NQ);
tmr = bnxt_usec_to_coal_tmr(bp, hw_coal->coal_ticks) / 2;
tmr = clamp_t(u16, tmr, 1, coal_cap->int_lat_tmr_min_max);
req->int_lat_tmr_min = cpu_to_le16(tmr);
req->enables |= cpu_to_le16(BNXT_COAL_CMPL_MIN_TMR_ENABLE);
return hwrm_req_send(bp, req);
}
int bnxt_hwrm_set_ring_coal(struct bnxt *bp, struct bnxt_napi *bnapi)
{
struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx;
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_coal coal;
int rc;
/* Tick values in micro seconds.
* 1 coal_buf x bufs_per_record = 1 completion record.
*/
memcpy(&coal, &bp->rx_coal, sizeof(struct bnxt_coal));
coal.coal_ticks = cpr->rx_ring_coal.coal_ticks;
coal.coal_bufs = cpr->rx_ring_coal.coal_bufs;
if (!bnapi->rx_ring)
return -ENODEV;
rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS);
if (rc)
return rc;
bnxt_hwrm_set_coal_params(bp, &coal, req_rx);
req_rx->ring_id = cpu_to_le16(bnxt_cp_ring_for_rx(bp, bnapi->rx_ring));
return hwrm_req_send(bp, req_rx);
}
int bnxt_hwrm_set_coal(struct bnxt *bp)
{
struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req_rx, *req_tx,
*req;
int i, rc;
rc = hwrm_req_init(bp, req_rx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS);
if (rc)
return rc;
rc = hwrm_req_init(bp, req_tx, HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS);
if (rc) {
hwrm_req_drop(bp, req_rx);
return rc;
}
bnxt_hwrm_set_coal_params(bp, &bp->rx_coal, req_rx);
bnxt_hwrm_set_coal_params(bp, &bp->tx_coal, req_tx);
hwrm_req_hold(bp, req_rx);
hwrm_req_hold(bp, req_tx);
for (i = 0; i < bp->cp_nr_rings; i++) {
struct bnxt_napi *bnapi = bp->bnapi[i];
struct bnxt_coal *hw_coal;
u16 ring_id;
req = req_rx;
if (!bnapi->rx_ring) {
ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring);
req = req_tx;
} else {
ring_id = bnxt_cp_ring_for_rx(bp, bnapi->rx_ring);
}
req->ring_id = cpu_to_le16(ring_id);
rc = hwrm_req_send(bp, req);
if (rc)
break;
if (!(bp->flags & BNXT_FLAG_CHIP_P5))
continue;
if (bnapi->rx_ring && bnapi->tx_ring) {
req = req_tx;
ring_id = bnxt_cp_ring_for_tx(bp, bnapi->tx_ring);
req->ring_id = cpu_to_le16(ring_id);
rc = hwrm_req_send(bp, req);
if (rc)
break;
}
if (bnapi->rx_ring)
hw_coal = &bp->rx_coal;
else
hw_coal = &bp->tx_coal;
__bnxt_hwrm_set_coal_nq(bp, bnapi, hw_coal);
}
hwrm_req_drop(bp, req_rx);
hwrm_req_drop(bp, req_tx);
return rc;
}
static void bnxt_hwrm_stat_ctx_free(struct bnxt *bp)
{
struct hwrm_stat_ctx_clr_stats_input *req0 = NULL;
struct hwrm_stat_ctx_free_input *req;
int i;
if (!bp->bnapi)
return;
if (BNXT_CHIP_TYPE_NITRO_A0(bp))
return;
if (hwrm_req_init(bp, req, HWRM_STAT_CTX_FREE))
return;
if (BNXT_FW_MAJ(bp) <= 20) {
if (hwrm_req_init(bp, req0, HWRM_STAT_CTX_CLR_STATS)) {
hwrm_req_drop(bp, req);
return;
}
hwrm_req_hold(bp, req0);
}
hwrm_req_hold(bp, req);
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;
if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) {
req->stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id);
if (req0) {
req0->stat_ctx_id = req->stat_ctx_id;
hwrm_req_send(bp, req0);
}
hwrm_req_send(bp, req);
cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
}
}
hwrm_req_drop(bp, req);
if (req0)
hwrm_req_drop(bp, req0);
}
static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp)
{
struct hwrm_stat_ctx_alloc_output *resp;
struct hwrm_stat_ctx_alloc_input *req;
int rc, i;
if (BNXT_CHIP_TYPE_NITRO_A0(bp))
return 0;
rc = hwrm_req_init(bp, req, HWRM_STAT_CTX_ALLOC);
if (rc)
return rc;
req->stats_dma_length = cpu_to_le16(bp->hw_ring_stats_size);
req->update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000);
resp = hwrm_req_hold(bp, req);
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;
req->stats_dma_addr = cpu_to_le64(cpr->stats.hw_stats_map);
rc = hwrm_req_send(bp, req);
if (rc)
break;
cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id);
bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id;
}
hwrm_req_drop(bp, req);
return rc;
}
static int bnxt_hwrm_func_qcfg(struct bnxt *bp)
{
struct hwrm_func_qcfg_output *resp;
struct hwrm_func_qcfg_input *req;
u32 min_db_offset = 0;
u16 flags;
int rc;
rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG);
if (rc)
return rc;
req->fid = cpu_to_le16(0xffff);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto func_qcfg_exit;
#ifdef CONFIG_BNXT_SRIOV
if (BNXT_VF(bp)) {
struct bnxt_vf_info *vf = &bp->vf;
vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK;
} else {
bp->pf.registered_vfs = le16_to_cpu(resp->registered_vfs);
}
#endif
flags = le16_to_cpu(resp->flags);
if (flags & (FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED |
FUNC_QCFG_RESP_FLAGS_FW_LLDP_AGENT_ENABLED)) {
bp->fw_cap |= BNXT_FW_CAP_LLDP_AGENT;
if (flags & FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED)
bp->fw_cap |= BNXT_FW_CAP_DCBX_AGENT;
}
if (BNXT_PF(bp) && (flags & FUNC_QCFG_RESP_FLAGS_MULTI_HOST))
bp->flags |= BNXT_FLAG_MULTI_HOST;
if (flags & FUNC_QCFG_RESP_FLAGS_RING_MONITOR_ENABLED)
bp->fw_cap |= BNXT_FW_CAP_RING_MONITOR;
switch (resp->port_partition_type) {
case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0:
case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5:
case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR2_0:
bp->port_partition_type = resp->port_partition_type;
break;
}
if (bp->hwrm_spec_code < 0x10707 ||
resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEB)
bp->br_mode = BRIDGE_MODE_VEB;
else if (resp->evb_mode == FUNC_QCFG_RESP_EVB_MODE_VEPA)
bp->br_mode = BRIDGE_MODE_VEPA;
else
bp->br_mode = BRIDGE_MODE_UNDEF;
bp->max_mtu = le16_to_cpu(resp->max_mtu_configured);
if (!bp->max_mtu)
bp->max_mtu = BNXT_MAX_MTU;
if (bp->db_size)
goto func_qcfg_exit;
if (bp->flags & BNXT_FLAG_CHIP_P5) {
if (BNXT_PF(bp))
min_db_offset = DB_PF_OFFSET_P5;
else
min_db_offset = DB_VF_OFFSET_P5;
}
bp->db_size = PAGE_ALIGN(le16_to_cpu(resp->l2_doorbell_bar_size_kb) *
1024);
if (!bp->db_size || bp->db_size > pci_resource_len(bp->pdev, 2) ||
bp->db_size <= min_db_offset)
bp->db_size = pci_resource_len(bp->pdev, 2);
func_qcfg_exit:
hwrm_req_drop(bp, req);
return rc;
}
static void bnxt_init_ctx_initializer(struct bnxt_ctx_mem_info *ctx,
struct hwrm_func_backing_store_qcaps_output *resp)
{
struct bnxt_mem_init *mem_init;
u16 init_mask;
u8 init_val;
u8 *offset;
int i;
init_val = resp->ctx_kind_initializer;
init_mask = le16_to_cpu(resp->ctx_init_mask);
offset = &resp->qp_init_offset;
mem_init = &ctx->mem_init[BNXT_CTX_MEM_INIT_QP];
for (i = 0; i < BNXT_CTX_MEM_INIT_MAX; i++, mem_init++, offset++) {
mem_init->init_val = init_val;
mem_init->offset = BNXT_MEM_INVALID_OFFSET;
if (!init_mask)
continue;
if (i == BNXT_CTX_MEM_INIT_STAT)
offset = &resp->stat_init_offset;
if (init_mask & (1 << i))
mem_init->offset = *offset * 4;
else
mem_init->init_val = 0;
}
ctx->mem_init[BNXT_CTX_MEM_INIT_QP].size = ctx->qp_entry_size;
ctx->mem_init[BNXT_CTX_MEM_INIT_SRQ].size = ctx->srq_entry_size;
ctx->mem_init[BNXT_CTX_MEM_INIT_CQ].size = ctx->cq_entry_size;
ctx->mem_init[BNXT_CTX_MEM_INIT_VNIC].size = ctx->vnic_entry_size;
ctx->mem_init[BNXT_CTX_MEM_INIT_STAT].size = ctx->stat_entry_size;
ctx->mem_init[BNXT_CTX_MEM_INIT_MRAV].size = ctx->mrav_entry_size;
}
static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp)
{
struct hwrm_func_backing_store_qcaps_output *resp;
struct hwrm_func_backing_store_qcaps_input *req;
int rc;
if (bp->hwrm_spec_code < 0x10902 || BNXT_VF(bp) || bp->ctx)
return 0;
rc = hwrm_req_init(bp, req, HWRM_FUNC_BACKING_STORE_QCAPS);
if (rc)
return rc;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send_silent(bp, req);
if (!rc) {
struct bnxt_ctx_pg_info *ctx_pg;
struct bnxt_ctx_mem_info *ctx;
int i, tqm_rings;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx) {
rc = -ENOMEM;
goto ctx_err;
}
ctx->qp_max_entries = le32_to_cpu(resp->qp_max_entries);
ctx->qp_min_qp1_entries = le16_to_cpu(resp->qp_min_qp1_entries);
ctx->qp_max_l2_entries = le16_to_cpu(resp->qp_max_l2_entries);
ctx->qp_entry_size = le16_to_cpu(resp->qp_entry_size);
ctx->srq_max_l2_entries = le16_to_cpu(resp->srq_max_l2_entries);
ctx->srq_max_entries = le32_to_cpu(resp->srq_max_entries);
ctx->srq_entry_size = le16_to_cpu(resp->srq_entry_size);
ctx->cq_max_l2_entries = le16_to_cpu(resp->cq_max_l2_entries);
ctx->cq_max_entries = le32_to_cpu(resp->cq_max_entries);
ctx->cq_entry_size = le16_to_cpu(resp->cq_entry_size);
ctx->vnic_max_vnic_entries =
le16_to_cpu(resp->vnic_max_vnic_entries);
ctx->vnic_max_ring_table_entries =
le16_to_cpu(resp->vnic_max_ring_table_entries);
ctx->vnic_entry_size = le16_to_cpu(resp->vnic_entry_size);
ctx->stat_max_entries = le32_to_cpu(resp->stat_max_entries);
ctx->stat_entry_size = le16_to_cpu(resp->stat_entry_size);
ctx->tqm_entry_size = le16_to_cpu(resp->tqm_entry_size);
ctx->tqm_min_entries_per_ring =
le32_to_cpu(resp->tqm_min_entries_per_ring);
ctx->tqm_max_entries_per_ring =
le32_to_cpu(resp->tqm_max_entries_per_ring);
ctx->tqm_entries_multiple = resp->tqm_entries_multiple;
if (!ctx->tqm_entries_multiple)
ctx->tqm_entries_multiple = 1;
ctx->mrav_max_entries = le32_to_cpu(resp->mrav_max_entries);
ctx->mrav_entry_size = le16_to_cpu(resp->mrav_entry_size);
ctx->mrav_num_entries_units =
le16_to_cpu(resp->mrav_num_entries_units);
ctx->tim_entry_size = le16_to_cpu(resp->tim_entry_size);
ctx->tim_max_entries = le32_to_cpu(resp->tim_max_entries);
bnxt_init_ctx_initializer(ctx, resp);
ctx->tqm_fp_rings_count = resp->tqm_fp_rings_count;
if (!ctx->tqm_fp_rings_count)
ctx->tqm_fp_rings_count = bp->max_q;
else if (ctx->tqm_fp_rings_count > BNXT_MAX_TQM_FP_RINGS)
ctx->tqm_fp_rings_count = BNXT_MAX_TQM_FP_RINGS;
tqm_rings = ctx->tqm_fp_rings_count + BNXT_MAX_TQM_SP_RINGS;
ctx_pg = kcalloc(tqm_rings, sizeof(*ctx_pg), GFP_KERNEL);
if (!ctx_pg) {
kfree(ctx);
rc = -ENOMEM;
goto ctx_err;
}
for (i = 0; i < tqm_rings; i++, ctx_pg++)
ctx->tqm_mem[i] = ctx_pg;
bp->ctx = ctx;
} else {
rc = 0;
}
ctx_err:
hwrm_req_drop(bp, req);
return rc;
}
static void bnxt_hwrm_set_pg_attr(struct bnxt_ring_mem_info *rmem, u8 *pg_attr,
__le64 *pg_dir)
{
if (!rmem->nr_pages)
return;
BNXT_SET_CTX_PAGE_ATTR(*pg_attr);
if (rmem->depth >= 1) {
if (rmem->depth == 2)
*pg_attr |= 2;
else
*pg_attr |= 1;
*pg_dir = cpu_to_le64(rmem->pg_tbl_map);
} else {
*pg_dir = cpu_to_le64(rmem->dma_arr[0]);
}
}
#define FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES \
(FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP | \
FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ | \
FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ | \
FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC | \
FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT)
static int bnxt_hwrm_func_backing_store_cfg(struct bnxt *bp, u32 enables)
{
struct hwrm_func_backing_store_cfg_input *req;
struct bnxt_ctx_mem_info *ctx = bp->ctx;
struct bnxt_ctx_pg_info *ctx_pg;
void **__req = (void **)&req;
u32 req_len = sizeof(*req);
__le32 *num_entries;
__le64 *pg_dir;
u32 flags = 0;
u8 *pg_attr;
u32 ena;
int rc;
int i;
if (!ctx)
return 0;
if (req_len > bp->hwrm_max_ext_req_len)
req_len = BNXT_BACKING_STORE_CFG_LEGACY_LEN;
rc = __hwrm_req_init(bp, __req, HWRM_FUNC_BACKING_STORE_CFG, req_len);
if (rc)
return rc;
req->enables = cpu_to_le32(enables);
if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_QP) {
ctx_pg = &ctx->qp_mem;
req->qp_num_entries = cpu_to_le32(ctx_pg->entries);
req->qp_num_qp1_entries = cpu_to_le16(ctx->qp_min_qp1_entries);
req->qp_num_l2_entries = cpu_to_le16(ctx->qp_max_l2_entries);
req->qp_entry_size = cpu_to_le16(ctx->qp_entry_size);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
&req->qpc_pg_size_qpc_lvl,
&req->qpc_page_dir);
}
if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_SRQ) {
ctx_pg = &ctx->srq_mem;
req->srq_num_entries = cpu_to_le32(ctx_pg->entries);
req->srq_num_l2_entries = cpu_to_le16(ctx->srq_max_l2_entries);
req->srq_entry_size = cpu_to_le16(ctx->srq_entry_size);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
&req->srq_pg_size_srq_lvl,
&req->srq_page_dir);
}
if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_CQ) {
ctx_pg = &ctx->cq_mem;
req->cq_num_entries = cpu_to_le32(ctx_pg->entries);
req->cq_num_l2_entries = cpu_to_le16(ctx->cq_max_l2_entries);
req->cq_entry_size = cpu_to_le16(ctx->cq_entry_size);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
&req->cq_pg_size_cq_lvl,
&req->cq_page_dir);
}
if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_VNIC) {
ctx_pg = &ctx->vnic_mem;
req->vnic_num_vnic_entries =
cpu_to_le16(ctx->vnic_max_vnic_entries);
req->vnic_num_ring_table_entries =
cpu_to_le16(ctx->vnic_max_ring_table_entries);
req->vnic_entry_size = cpu_to_le16(ctx->vnic_entry_size);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
&req->vnic_pg_size_vnic_lvl,
&req->vnic_page_dir);
}
if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_STAT) {
ctx_pg = &ctx->stat_mem;
req->stat_num_entries = cpu_to_le32(ctx->stat_max_entries);
req->stat_entry_size = cpu_to_le16(ctx->stat_entry_size);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
&req->stat_pg_size_stat_lvl,
&req->stat_page_dir);
}
if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV) {
ctx_pg = &ctx->mrav_mem;
req->mrav_num_entries = cpu_to_le32(ctx_pg->entries);
if (ctx->mrav_num_entries_units)
flags |=
FUNC_BACKING_STORE_CFG_REQ_FLAGS_MRAV_RESERVATION_SPLIT;
req->mrav_entry_size = cpu_to_le16(ctx->mrav_entry_size);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
&req->mrav_pg_size_mrav_lvl,
&req->mrav_page_dir);
}
if (enables & FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM) {
ctx_pg = &ctx->tim_mem;
req->tim_num_entries = cpu_to_le32(ctx_pg->entries);
req->tim_entry_size = cpu_to_le16(ctx->tim_entry_size);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem,
&req->tim_pg_size_tim_lvl,
&req->tim_page_dir);
}
for (i = 0, num_entries = &req->tqm_sp_num_entries,
pg_attr = &req->tqm_sp_pg_size_tqm_sp_lvl,
pg_dir = &req->tqm_sp_page_dir,
ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP;
i < BNXT_MAX_TQM_RINGS;
i++, num_entries++, pg_attr++, pg_dir++, ena <<= 1) {
if (!(enables & ena))
continue;
req->tqm_entry_size = cpu_to_le16(ctx->tqm_entry_size);
ctx_pg = ctx->tqm_mem[i];
*num_entries = cpu_to_le32(ctx_pg->entries);
bnxt_hwrm_set_pg_attr(&ctx_pg->ring_mem, pg_attr, pg_dir);
}
req->flags = cpu_to_le32(flags);
return hwrm_req_send(bp, req);
}
static int bnxt_alloc_ctx_mem_blk(struct bnxt *bp,
struct bnxt_ctx_pg_info *ctx_pg)
{
struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem;
rmem->page_size = BNXT_PAGE_SIZE;
rmem->pg_arr = ctx_pg->ctx_pg_arr;
rmem->dma_arr = ctx_pg->ctx_dma_arr;
rmem->flags = BNXT_RMEM_VALID_PTE_FLAG;
if (rmem->depth >= 1)
rmem->flags |= BNXT_RMEM_USE_FULL_PAGE_FLAG;
return bnxt_alloc_ring(bp, rmem);
}
static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp,
struct bnxt_ctx_pg_info *ctx_pg, u32 mem_size,
u8 depth, struct bnxt_mem_init *mem_init)
{
struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem;
int rc;
if (!mem_size)
return -EINVAL;
ctx_pg->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE);
if (ctx_pg->nr_pages > MAX_CTX_TOTAL_PAGES) {
ctx_pg->nr_pages = 0;
return -EINVAL;
}
if (ctx_pg->nr_pages > MAX_CTX_PAGES || depth > 1) {
int nr_tbls, i;
rmem->depth = 2;
ctx_pg->ctx_pg_tbl = kcalloc(MAX_CTX_PAGES, sizeof(ctx_pg),
GFP_KERNEL);
if (!ctx_pg->ctx_pg_tbl)
return -ENOMEM;
nr_tbls = DIV_ROUND_UP(ctx_pg->nr_pages, MAX_CTX_PAGES);
rmem->nr_pages = nr_tbls;
rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg);
if (rc)
return rc;
for (i = 0; i < nr_tbls; i++) {
struct bnxt_ctx_pg_info *pg_tbl;
pg_tbl = kzalloc(sizeof(*pg_tbl), GFP_KERNEL);
if (!pg_tbl)
return -ENOMEM;
ctx_pg->ctx_pg_tbl[i] = pg_tbl;
rmem = &pg_tbl->ring_mem;
rmem->pg_tbl = ctx_pg->ctx_pg_arr[i];
rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i];
rmem->depth = 1;
rmem->nr_pages = MAX_CTX_PAGES;
rmem->mem_init = mem_init;
if (i == (nr_tbls - 1)) {
int rem = ctx_pg->nr_pages % MAX_CTX_PAGES;
if (rem)
rmem->nr_pages = rem;
}
rc = bnxt_alloc_ctx_mem_blk(bp, pg_tbl);
if (rc)
break;
}
} else {
rmem->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE);
if (rmem->nr_pages > 1 || depth)
rmem->depth = 1;
rmem->mem_init = mem_init;
rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg);
}
return rc;
}
static void bnxt_free_ctx_pg_tbls(struct bnxt *bp,
struct bnxt_ctx_pg_info *ctx_pg)
{
struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem;
if (rmem->depth > 1 || ctx_pg->nr_pages > MAX_CTX_PAGES ||
ctx_pg->ctx_pg_tbl) {
int i, nr_tbls = rmem->nr_pages;
for (i = 0; i < nr_tbls; i++) {
struct bnxt_ctx_pg_info *pg_tbl;
struct bnxt_ring_mem_info *rmem2;
pg_tbl = ctx_pg->ctx_pg_tbl[i];
if (!pg_tbl)
continue;
rmem2 = &pg_tbl->ring_mem;
bnxt_free_ring(bp, rmem2);
ctx_pg->ctx_pg_arr[i] = NULL;
kfree(pg_tbl);
ctx_pg->ctx_pg_tbl[i] = NULL;
}
kfree(ctx_pg->ctx_pg_tbl);
ctx_pg->ctx_pg_tbl = NULL;
}
bnxt_free_ring(bp, rmem);
ctx_pg->nr_pages = 0;
}
void bnxt_free_ctx_mem(struct bnxt *bp)
{
struct bnxt_ctx_mem_info *ctx = bp->ctx;
int i;
if (!ctx)
return;
if (ctx->tqm_mem[0]) {
for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++)
bnxt_free_ctx_pg_tbls(bp, ctx->tqm_mem[i]);
kfree(ctx->tqm_mem[0]);
ctx->tqm_mem[0] = NULL;
}
bnxt_free_ctx_pg_tbls(bp, &ctx->tim_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->mrav_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->stat_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->vnic_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->cq_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->srq_mem);
bnxt_free_ctx_pg_tbls(bp, &ctx->qp_mem);
ctx->flags &= ~BNXT_CTX_FLAG_INITED;
}
static int bnxt_alloc_ctx_mem(struct bnxt *bp)
{
struct bnxt_ctx_pg_info *ctx_pg;
struct bnxt_ctx_mem_info *ctx;
struct bnxt_mem_init *init;
u32 mem_size, ena, entries;
u32 entries_sp, min;
u32 num_mr, num_ah;
u32 extra_srqs = 0;
u32 extra_qps = 0;
u8 pg_lvl = 1;
int i, rc;
rc = bnxt_hwrm_func_backing_store_qcaps(bp);
if (rc) {
netdev_err(bp->dev, "Failed querying context mem capability, rc = %d.\n",
rc);
return rc;
}
ctx = bp->ctx;
if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED))
return 0;
if ((bp->flags & BNXT_FLAG_ROCE_CAP) && !is_kdump_kernel()) {
pg_lvl = 2;
extra_qps = 65536;
extra_srqs = 8192;
}
ctx_pg = &ctx->qp_mem;
ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries +
extra_qps;
if (ctx->qp_entry_size) {
mem_size = ctx->qp_entry_size * ctx_pg->entries;
init = &ctx->mem_init[BNXT_CTX_MEM_INIT_QP];
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init);
if (rc)
return rc;
}
ctx_pg = &ctx->srq_mem;
ctx_pg->entries = ctx->srq_max_l2_entries + extra_srqs;
if (ctx->srq_entry_size) {
mem_size = ctx->srq_entry_size * ctx_pg->entries;
init = &ctx->mem_init[BNXT_CTX_MEM_INIT_SRQ];
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init);
if (rc)
return rc;
}
ctx_pg = &ctx->cq_mem;
ctx_pg->entries = ctx->cq_max_l2_entries + extra_qps * 2;
if (ctx->cq_entry_size) {
mem_size = ctx->cq_entry_size * ctx_pg->entries;
init = &ctx->mem_init[BNXT_CTX_MEM_INIT_CQ];
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, init);
if (rc)
return rc;
}
ctx_pg = &ctx->vnic_mem;
ctx_pg->entries = ctx->vnic_max_vnic_entries +
ctx->vnic_max_ring_table_entries;
if (ctx->vnic_entry_size) {
mem_size = ctx->vnic_entry_size * ctx_pg->entries;
init = &ctx->mem_init[BNXT_CTX_MEM_INIT_VNIC];
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, init);
if (rc)
return rc;
}
ctx_pg = &ctx->stat_mem;
ctx_pg->entries = ctx->stat_max_entries;
if (ctx->stat_entry_size) {
mem_size = ctx->stat_entry_size * ctx_pg->entries;
init = &ctx->mem_init[BNXT_CTX_MEM_INIT_STAT];
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, init);
if (rc)
return rc;
}
ena = 0;
if (!(bp->flags & BNXT_FLAG_ROCE_CAP))
goto skip_rdma;
ctx_pg = &ctx->mrav_mem;
/* 128K extra is needed to accommodate static AH context
* allocation by f/w.
*/
num_mr = 1024 * 256;
num_ah = 1024 * 128;
ctx_pg->entries = num_mr + num_ah;
if (ctx->mrav_entry_size) {
mem_size = ctx->mrav_entry_size * ctx_pg->entries;
init = &ctx->mem_init[BNXT_CTX_MEM_INIT_MRAV];
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2, init);
if (rc)
return rc;
}
ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV;
if (ctx->mrav_num_entries_units)
ctx_pg->entries =
((num_mr / ctx->mrav_num_entries_units) << 16) |
(num_ah / ctx->mrav_num_entries_units);
ctx_pg = &ctx->tim_mem;
ctx_pg->entries = ctx->qp_mem.entries;
if (ctx->tim_entry_size) {
mem_size = ctx->tim_entry_size * ctx_pg->entries;
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, NULL);
if (rc)
return rc;
}
ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM;
skip_rdma:
min = ctx->tqm_min_entries_per_ring;
entries_sp = ctx->vnic_max_vnic_entries + ctx->qp_max_l2_entries +
2 * (extra_qps + ctx->qp_min_qp1_entries) + min;
entries_sp = roundup(entries_sp, ctx->tqm_entries_multiple);
entries = ctx->qp_max_l2_entries + 2 * (extra_qps + ctx->qp_min_qp1_entries);
entries = roundup(entries, ctx->tqm_entries_multiple);
entries = clamp_t(u32, entries, min, ctx->tqm_max_entries_per_ring);
for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) {
ctx_pg = ctx->tqm_mem[i];
ctx_pg->entries = i ? entries : entries_sp;
if (ctx->tqm_entry_size) {
mem_size = ctx->tqm_entry_size * ctx_pg->entries;
rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1,
NULL);
if (rc)
return rc;
}
ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i;
}
ena |= FUNC_BACKING_STORE_CFG_REQ_DFLT_ENABLES;
rc = bnxt_hwrm_func_backing_store_cfg(bp, ena);
if (rc) {
netdev_err(bp->dev, "Failed configuring context mem, rc = %d.\n",
rc);
return rc;
}
ctx->flags |= BNXT_CTX_FLAG_INITED;
return 0;
}
int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp, bool all)
{
struct hwrm_func_resource_qcaps_output *resp;
struct hwrm_func_resource_qcaps_input *req;
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
int rc;
rc = hwrm_req_init(bp, req, HWRM_FUNC_RESOURCE_QCAPS);
if (rc)
return rc;
req->fid = cpu_to_le16(0xffff);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send_silent(bp, req);
if (rc)
goto hwrm_func_resc_qcaps_exit;
hw_resc->max_tx_sch_inputs = le16_to_cpu(resp->max_tx_scheduler_inputs);
if (!all)
goto hwrm_func_resc_qcaps_exit;
hw_resc->min_rsscos_ctxs = le16_to_cpu(resp->min_rsscos_ctx);
hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
hw_resc->min_cp_rings = le16_to_cpu(resp->min_cmpl_rings);
hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
hw_resc->min_tx_rings = le16_to_cpu(resp->min_tx_rings);
hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
hw_resc->min_rx_rings = le16_to_cpu(resp->min_rx_rings);
hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
hw_resc->min_hw_ring_grps = le16_to_cpu(resp->min_hw_ring_grps);
hw_resc->max_hw_ring_grps = le16_to_cpu(resp->max_hw_ring_grps);
hw_resc->min_l2_ctxs = le16_to_cpu(resp->min_l2_ctxs);
hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
hw_resc->min_vnics = le16_to_cpu(resp->min_vnics);
hw_resc->max_vnics = le16_to_cpu(resp->max_vnics);
hw_resc->min_stat_ctxs = le16_to_cpu(resp->min_stat_ctx);
hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
if (bp->flags & BNXT_FLAG_CHIP_P5) {
u16 max_msix = le16_to_cpu(resp->max_msix);
hw_resc->max_nqs = max_msix;
hw_resc->max_hw_ring_grps = hw_resc->max_rx_rings;
}
if (BNXT_PF(bp)) {
struct bnxt_pf_info *pf = &bp->pf;
pf->vf_resv_strategy =
le16_to_cpu(resp->vf_reservation_strategy);
if (pf->vf_resv_strategy > BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC)
pf->vf_resv_strategy = BNXT_VF_RESV_STRATEGY_MAXIMAL;
}
hwrm_func_resc_qcaps_exit:
hwrm_req_drop(bp, req);
return rc;
}
static int __bnxt_hwrm_ptp_qcfg(struct bnxt *bp)
{
struct hwrm_port_mac_ptp_qcfg_output *resp;
struct hwrm_port_mac_ptp_qcfg_input *req;
struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;
bool phc_cfg;
u8 flags;
int rc;
if (bp->hwrm_spec_code < 0x10801) {
rc = -ENODEV;
goto no_ptp;
}
rc = hwrm_req_init(bp, req, HWRM_PORT_MAC_PTP_QCFG);
if (rc)
goto no_ptp;
req->port_id = cpu_to_le16(bp->pf.port_id);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto exit;
flags = resp->flags;
if (!(flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_HWRM_ACCESS)) {
rc = -ENODEV;
goto exit;
}
if (!ptp) {
ptp = kzalloc(sizeof(*ptp), GFP_KERNEL);
if (!ptp) {
rc = -ENOMEM;
goto exit;
}
ptp->bp = bp;
bp->ptp_cfg = ptp;
}
if (flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_PARTIAL_DIRECT_ACCESS_REF_CLOCK) {
ptp->refclk_regs[0] = le32_to_cpu(resp->ts_ref_clock_reg_lower);
ptp->refclk_regs[1] = le32_to_cpu(resp->ts_ref_clock_reg_upper);
} else if (bp->flags & BNXT_FLAG_CHIP_P5) {
ptp->refclk_regs[0] = BNXT_TS_REG_TIMESYNC_TS0_LOWER;
ptp->refclk_regs[1] = BNXT_TS_REG_TIMESYNC_TS0_UPPER;
} else {
rc = -ENODEV;
goto exit;
}
phc_cfg = (flags & PORT_MAC_PTP_QCFG_RESP_FLAGS_RTC_CONFIGURED) != 0;
rc = bnxt_ptp_init(bp, phc_cfg);
if (rc)
netdev_warn(bp->dev, "PTP initialization failed.\n");
exit:
hwrm_req_drop(bp, req);
if (!rc)
return 0;
no_ptp:
bnxt_ptp_clear(bp);
kfree(ptp);
bp->ptp_cfg = NULL;
return rc;
}
static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
{
struct hwrm_func_qcaps_output *resp;
struct hwrm_func_qcaps_input *req;
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
u32 flags, flags_ext, flags_ext2;
int rc;
rc = hwrm_req_init(bp, req, HWRM_FUNC_QCAPS);
if (rc)
return rc;
req->fid = cpu_to_le16(0xffff);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto hwrm_func_qcaps_exit;
flags = le32_to_cpu(resp->flags);
if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V1_SUPPORTED)
bp->flags |= BNXT_FLAG_ROCEV1_CAP;
if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED)
bp->flags |= BNXT_FLAG_ROCEV2_CAP;
if (flags & FUNC_QCAPS_RESP_FLAGS_PCIE_STATS_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_PCIE_STATS_SUPPORTED;
if (flags & FUNC_QCAPS_RESP_FLAGS_HOT_RESET_CAPABLE)
bp->fw_cap |= BNXT_FW_CAP_HOT_RESET;
if (flags & FUNC_QCAPS_RESP_FLAGS_EXT_STATS_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_EXT_STATS_SUPPORTED;
if (flags & FUNC_QCAPS_RESP_FLAGS_ERROR_RECOVERY_CAPABLE)
bp->fw_cap |= BNXT_FW_CAP_ERROR_RECOVERY;
if (flags & FUNC_QCAPS_RESP_FLAGS_ERR_RECOVER_RELOAD)
bp->fw_cap |= BNXT_FW_CAP_ERR_RECOVER_RELOAD;
if (!(flags & FUNC_QCAPS_RESP_FLAGS_VLAN_ACCELERATION_TX_DISABLED))
bp->fw_cap |= BNXT_FW_CAP_VLAN_TX_INSERT;
if (flags & FUNC_QCAPS_RESP_FLAGS_DBG_QCAPS_CMD_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_DBG_QCAPS;
flags_ext = le32_to_cpu(resp->flags_ext);
if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_EXT_HW_STATS_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED;
if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_PPS_SUPPORTED))
bp->fw_cap |= BNXT_FW_CAP_PTP_PPS;
if (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_PTP_64BIT_RTC_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_PTP_RTC;
if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_HOT_RESET_IF_SUPPORT))
bp->fw_cap |= BNXT_FW_CAP_HOT_RESET_IF;
if (BNXT_PF(bp) && (flags_ext & FUNC_QCAPS_RESP_FLAGS_EXT_FW_LIVEPATCH_SUPPORTED))
bp->fw_cap |= BNXT_FW_CAP_LIVEPATCH;
flags_ext2 = le32_to_cpu(resp->flags_ext2);
if (flags_ext2 & FUNC_QCAPS_RESP_FLAGS_EXT2_RX_ALL_PKTS_TIMESTAMPS_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_RX_ALL_PKT_TS;
bp->tx_push_thresh = 0;
if ((flags & FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED) &&
BNXT_FW_MAJ(bp) > 217)
bp->tx_push_thresh = BNXT_TX_PUSH_THRESH;
hw_resc->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx);
hw_resc->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings);
hw_resc->max_tx_rings = le16_to_cpu(resp->max_tx_rings);
hw_resc->max_rx_rings = le16_to_cpu(resp->max_rx_rings);
hw_resc->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps);
if (!hw_resc->max_hw_ring_grps)
hw_resc->max_hw_ring_grps = hw_resc->max_tx_rings;
hw_resc->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs);
hw_resc->max_vnics = le16_to_cpu(resp->max_vnics);
hw_resc->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx);
if (BNXT_PF(bp)) {
struct bnxt_pf_info *pf = &bp->pf;
pf->fw_fid = le16_to_cpu(resp->fid);
pf->port_id = le16_to_cpu(resp->port_id);
memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN);
pf->first_vf_id = le16_to_cpu(resp->first_vf_id);
pf->max_vfs = le16_to_cpu(resp->max_vfs);
pf->max_encap_records = le32_to_cpu(resp->max_encap_records);
pf->max_decap_records = le32_to_cpu(resp->max_decap_records);
pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows);
pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows);
pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows);
pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows);
bp->flags &= ~BNXT_FLAG_WOL_CAP;
if (flags & FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED)
bp->flags |= BNXT_FLAG_WOL_CAP;
if (flags & FUNC_QCAPS_RESP_FLAGS_PTP_SUPPORTED) {
__bnxt_hwrm_ptp_qcfg(bp);
} else {
bnxt_ptp_clear(bp);
kfree(bp->ptp_cfg);
bp->ptp_cfg = NULL;
}
} else {
#ifdef CONFIG_BNXT_SRIOV
struct bnxt_vf_info *vf = &bp->vf;
vf->fw_fid = le16_to_cpu(resp->fid);
memcpy(vf->mac_addr, resp->mac_address, ETH_ALEN);
#endif
}
hwrm_func_qcaps_exit:
hwrm_req_drop(bp, req);
return rc;
}
static void bnxt_hwrm_dbg_qcaps(struct bnxt *bp)
{
struct hwrm_dbg_qcaps_output *resp;
struct hwrm_dbg_qcaps_input *req;
int rc;
bp->fw_dbg_cap = 0;
if (!(bp->fw_cap & BNXT_FW_CAP_DBG_QCAPS))
return;
rc = hwrm_req_init(bp, req, HWRM_DBG_QCAPS);
if (rc)
return;
req->fid = cpu_to_le16(0xffff);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto hwrm_dbg_qcaps_exit;
bp->fw_dbg_cap = le32_to_cpu(resp->flags);
hwrm_dbg_qcaps_exit:
hwrm_req_drop(bp, req);
}
static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp);
int bnxt_hwrm_func_qcaps(struct bnxt *bp)
{
int rc;
rc = __bnxt_hwrm_func_qcaps(bp);
if (rc)
return rc;
bnxt_hwrm_dbg_qcaps(bp);
rc = bnxt_hwrm_queue_qportcfg(bp);
if (rc) {
netdev_err(bp->dev, "hwrm query qportcfg failure rc: %d\n", rc);
return rc;
}
if (bp->hwrm_spec_code >= 0x10803) {
rc = bnxt_alloc_ctx_mem(bp);
if (rc)
return rc;
rc = bnxt_hwrm_func_resc_qcaps(bp, true);
if (!rc)
bp->fw_cap |= BNXT_FW_CAP_NEW_RM;
}
return 0;
}
static int bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(struct bnxt *bp)
{
struct hwrm_cfa_adv_flow_mgnt_qcaps_output *resp;
struct hwrm_cfa_adv_flow_mgnt_qcaps_input *req;
u32 flags;
int rc;
if (!(bp->fw_cap & BNXT_FW_CAP_CFA_ADV_FLOW))
return 0;
rc = hwrm_req_init(bp, req, HWRM_CFA_ADV_FLOW_MGNT_QCAPS);
if (rc)
return rc;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto hwrm_cfa_adv_qcaps_exit;
flags = le32_to_cpu(resp->flags);
if (flags &
CFA_ADV_FLOW_MGNT_QCAPS_RESP_FLAGS_RFS_RING_TBL_IDX_V2_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2;
hwrm_cfa_adv_qcaps_exit:
hwrm_req_drop(bp, req);
return rc;
}
static int __bnxt_alloc_fw_health(struct bnxt *bp)
{
if (bp->fw_health)
return 0;
bp->fw_health = kzalloc(sizeof(*bp->fw_health), GFP_KERNEL);
if (!bp->fw_health)
return -ENOMEM;
mutex_init(&bp->fw_health->lock);
return 0;
}
static int bnxt_alloc_fw_health(struct bnxt *bp)
{
int rc;
if (!(bp->fw_cap & BNXT_FW_CAP_HOT_RESET) &&
!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
return 0;
rc = __bnxt_alloc_fw_health(bp);
if (rc) {
bp->fw_cap &= ~BNXT_FW_CAP_HOT_RESET;
bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
return rc;
}
return 0;
}
static void __bnxt_map_fw_health_reg(struct bnxt *bp, u32 reg)
{
writel(reg & BNXT_GRC_BASE_MASK, bp->bar0 +
BNXT_GRCPF_REG_WINDOW_BASE_OUT +
BNXT_FW_HEALTH_WIN_MAP_OFF);
}
static void bnxt_inv_fw_health_reg(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
u32 reg_type;
if (!fw_health)
return;
reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_HEALTH_REG]);
if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC)
fw_health->status_reliable = false;
reg_type = BNXT_FW_HEALTH_REG_TYPE(fw_health->regs[BNXT_FW_RESET_CNT_REG]);
if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC)
fw_health->resets_reliable = false;
}
static void bnxt_try_map_fw_health_reg(struct bnxt *bp)
{
void __iomem *hs;
u32 status_loc;
u32 reg_type;
u32 sig;
if (bp->fw_health)
bp->fw_health->status_reliable = false;
__bnxt_map_fw_health_reg(bp, HCOMM_STATUS_STRUCT_LOC);
hs = bp->bar0 + BNXT_FW_HEALTH_WIN_OFF(HCOMM_STATUS_STRUCT_LOC);
sig = readl(hs + offsetof(struct hcomm_status, sig_ver));
if ((sig & HCOMM_STATUS_SIGNATURE_MASK) != HCOMM_STATUS_SIGNATURE_VAL) {
if (!bp->chip_num) {
__bnxt_map_fw_health_reg(bp, BNXT_GRC_REG_BASE);
bp->chip_num = readl(bp->bar0 +
BNXT_FW_HEALTH_WIN_BASE +
BNXT_GRC_REG_CHIP_NUM);
}
if (!BNXT_CHIP_P5(bp))
return;
status_loc = BNXT_GRC_REG_STATUS_P5 |
BNXT_FW_HEALTH_REG_TYPE_BAR0;
} else {
status_loc = readl(hs + offsetof(struct hcomm_status,
fw_status_loc));
}
if (__bnxt_alloc_fw_health(bp)) {
netdev_warn(bp->dev, "no memory for firmware status checks\n");
return;
}
bp->fw_health->regs[BNXT_FW_HEALTH_REG] = status_loc;
reg_type = BNXT_FW_HEALTH_REG_TYPE(status_loc);
if (reg_type == BNXT_FW_HEALTH_REG_TYPE_GRC) {
__bnxt_map_fw_health_reg(bp, status_loc);
bp->fw_health->mapped_regs[BNXT_FW_HEALTH_REG] =
BNXT_FW_HEALTH_WIN_OFF(status_loc);
}
bp->fw_health->status_reliable = true;
}
static int bnxt_map_fw_health_regs(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
u32 reg_base = 0xffffffff;
int i;
bp->fw_health->status_reliable = false;
bp->fw_health->resets_reliable = false;
/* Only pre-map the monitoring GRC registers using window 3 */
for (i = 0; i < 4; i++) {
u32 reg = fw_health->regs[i];
if (BNXT_FW_HEALTH_REG_TYPE(reg) != BNXT_FW_HEALTH_REG_TYPE_GRC)
continue;
if (reg_base == 0xffffffff)
reg_base = reg & BNXT_GRC_BASE_MASK;
if ((reg & BNXT_GRC_BASE_MASK) != reg_base)
return -ERANGE;
fw_health->mapped_regs[i] = BNXT_FW_HEALTH_WIN_OFF(reg);
}
bp->fw_health->status_reliable = true;
bp->fw_health->resets_reliable = true;
if (reg_base == 0xffffffff)
return 0;
__bnxt_map_fw_health_reg(bp, reg_base);
return 0;
}
static void bnxt_remap_fw_health_regs(struct bnxt *bp)
{
if (!bp->fw_health)
return;
if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) {
bp->fw_health->status_reliable = true;
bp->fw_health->resets_reliable = true;
} else {
bnxt_try_map_fw_health_reg(bp);
}
}
static int bnxt_hwrm_error_recovery_qcfg(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
struct hwrm_error_recovery_qcfg_output *resp;
struct hwrm_error_recovery_qcfg_input *req;
int rc, i;
if (!(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY))
return 0;
rc = hwrm_req_init(bp, req, HWRM_ERROR_RECOVERY_QCFG);
if (rc)
return rc;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto err_recovery_out;
fw_health->flags = le32_to_cpu(resp->flags);
if ((fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) &&
!(bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL)) {
rc = -EINVAL;
goto err_recovery_out;
}
fw_health->polling_dsecs = le32_to_cpu(resp->driver_polling_freq);
fw_health->master_func_wait_dsecs =
le32_to_cpu(resp->master_func_wait_period);
fw_health->normal_func_wait_dsecs =
le32_to_cpu(resp->normal_func_wait_period);
fw_health->post_reset_wait_dsecs =
le32_to_cpu(resp->master_func_wait_period_after_reset);
fw_health->post_reset_max_wait_dsecs =
le32_to_cpu(resp->max_bailout_time_after_reset);
fw_health->regs[BNXT_FW_HEALTH_REG] =
le32_to_cpu(resp->fw_health_status_reg);
fw_health->regs[BNXT_FW_HEARTBEAT_REG] =
le32_to_cpu(resp->fw_heartbeat_reg);
fw_health->regs[BNXT_FW_RESET_CNT_REG] =
le32_to_cpu(resp->fw_reset_cnt_reg);
fw_health->regs[BNXT_FW_RESET_INPROG_REG] =
le32_to_cpu(resp->reset_inprogress_reg);
fw_health->fw_reset_inprog_reg_mask =
le32_to_cpu(resp->reset_inprogress_reg_mask);
fw_health->fw_reset_seq_cnt = resp->reg_array_cnt;
if (fw_health->fw_reset_seq_cnt >= 16) {
rc = -EINVAL;
goto err_recovery_out;
}
for (i = 0; i < fw_health->fw_reset_seq_cnt; i++) {
fw_health->fw_reset_seq_regs[i] =
le32_to_cpu(resp->reset_reg[i]);
fw_health->fw_reset_seq_vals[i] =
le32_to_cpu(resp->reset_reg_val[i]);
fw_health->fw_reset_seq_delay_msec[i] =
resp->delay_after_reset[i];
}
err_recovery_out:
hwrm_req_drop(bp, req);
if (!rc)
rc = bnxt_map_fw_health_regs(bp);
if (rc)
bp->fw_cap &= ~BNXT_FW_CAP_ERROR_RECOVERY;
return rc;
}
static int bnxt_hwrm_func_reset(struct bnxt *bp)
{
struct hwrm_func_reset_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_FUNC_RESET);
if (rc)
return rc;
req->enables = 0;
hwrm_req_timeout(bp, req, HWRM_RESET_TIMEOUT);
return hwrm_req_send(bp, req);
}
static void bnxt_nvm_cfg_ver_get(struct bnxt *bp)
{
struct hwrm_nvm_get_dev_info_output nvm_info;
if (!bnxt_hwrm_nvm_get_dev_info(bp, &nvm_info))
snprintf(bp->nvm_cfg_ver, FW_VER_STR_LEN, "%d.%d.%d",
nvm_info.nvm_cfg_ver_maj, nvm_info.nvm_cfg_ver_min,
nvm_info.nvm_cfg_ver_upd);
}
static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp)
{
struct hwrm_queue_qportcfg_output *resp;
struct hwrm_queue_qportcfg_input *req;
u8 i, j, *qptr;
bool no_rdma;
int rc = 0;
rc = hwrm_req_init(bp, req, HWRM_QUEUE_QPORTCFG);
if (rc)
return rc;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto qportcfg_exit;
if (!resp->max_configurable_queues) {
rc = -EINVAL;
goto qportcfg_exit;
}
bp->max_tc = resp->max_configurable_queues;
bp->max_lltc = resp->max_configurable_lossless_queues;
if (bp->max_tc > BNXT_MAX_QUEUE)
bp->max_tc = BNXT_MAX_QUEUE;
no_rdma = !(bp->flags & BNXT_FLAG_ROCE_CAP);
qptr = &resp->queue_id0;
for (i = 0, j = 0; i < bp->max_tc; i++) {
bp->q_info[j].queue_id = *qptr;
bp->q_ids[i] = *qptr++;
bp->q_info[j].queue_profile = *qptr++;
bp->tc_to_qidx[j] = j;
if (!BNXT_CNPQ(bp->q_info[j].queue_profile) ||
(no_rdma && BNXT_PF(bp)))
j++;
}
bp->max_q = bp->max_tc;
bp->max_tc = max_t(u8, j, 1);
if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG)
bp->max_tc = 1;
if (bp->max_lltc > bp->max_tc)
bp->max_lltc = bp->max_tc;
qportcfg_exit:
hwrm_req_drop(bp, req);
return rc;
}
static int bnxt_hwrm_poll(struct bnxt *bp)
{
struct hwrm_ver_get_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_VER_GET);
if (rc)
return rc;
req->hwrm_intf_maj = HWRM_VERSION_MAJOR;
req->hwrm_intf_min = HWRM_VERSION_MINOR;
req->hwrm_intf_upd = HWRM_VERSION_UPDATE;
hwrm_req_flags(bp, req, BNXT_HWRM_CTX_SILENT | BNXT_HWRM_FULL_WAIT);
rc = hwrm_req_send(bp, req);
return rc;
}
static int bnxt_hwrm_ver_get(struct bnxt *bp)
{
struct hwrm_ver_get_output *resp;
struct hwrm_ver_get_input *req;
u16 fw_maj, fw_min, fw_bld, fw_rsv;
u32 dev_caps_cfg, hwrm_ver;
int rc, len;
rc = hwrm_req_init(bp, req, HWRM_VER_GET);
if (rc)
return rc;
hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT);
bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN;
req->hwrm_intf_maj = HWRM_VERSION_MAJOR;
req->hwrm_intf_min = HWRM_VERSION_MINOR;
req->hwrm_intf_upd = HWRM_VERSION_UPDATE;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto hwrm_ver_get_exit;
memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output));
bp->hwrm_spec_code = resp->hwrm_intf_maj_8b << 16 |
resp->hwrm_intf_min_8b << 8 |
resp->hwrm_intf_upd_8b;
if (resp->hwrm_intf_maj_8b < 1) {
netdev_warn(bp->dev, "HWRM interface %d.%d.%d is older than 1.0.0.\n",
resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
resp->hwrm_intf_upd_8b);
netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n");
}
hwrm_ver = HWRM_VERSION_MAJOR << 16 | HWRM_VERSION_MINOR << 8 |
HWRM_VERSION_UPDATE;
if (bp->hwrm_spec_code > hwrm_ver)
snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d",
HWRM_VERSION_MAJOR, HWRM_VERSION_MINOR,
HWRM_VERSION_UPDATE);
else
snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d",
resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
resp->hwrm_intf_upd_8b);
fw_maj = le16_to_cpu(resp->hwrm_fw_major);
if (bp->hwrm_spec_code > 0x10803 && fw_maj) {
fw_min = le16_to_cpu(resp->hwrm_fw_minor);
fw_bld = le16_to_cpu(resp->hwrm_fw_build);
fw_rsv = le16_to_cpu(resp->hwrm_fw_patch);
len = FW_VER_STR_LEN;
} else {
fw_maj = resp->hwrm_fw_maj_8b;
fw_min = resp->hwrm_fw_min_8b;
fw_bld = resp->hwrm_fw_bld_8b;
fw_rsv = resp->hwrm_fw_rsvd_8b;
len = BC_HWRM_STR_LEN;
}
bp->fw_ver_code = BNXT_FW_VER_CODE(fw_maj, fw_min, fw_bld, fw_rsv);
snprintf(bp->fw_ver_str, len, "%d.%d.%d.%d", fw_maj, fw_min, fw_bld,
fw_rsv);
if (strlen(resp->active_pkg_name)) {
int fw_ver_len = strlen(bp->fw_ver_str);
snprintf(bp->fw_ver_str + fw_ver_len,
FW_VER_STR_LEN - fw_ver_len - 1, "/pkg %s",
resp->active_pkg_name);
bp->fw_cap |= BNXT_FW_CAP_PKG_VER;
}
bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout);
if (!bp->hwrm_cmd_timeout)
bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT;
bp->hwrm_cmd_max_timeout = le16_to_cpu(resp->max_req_timeout) * 1000;
if (!bp->hwrm_cmd_max_timeout)
bp->hwrm_cmd_max_timeout = HWRM_CMD_MAX_TIMEOUT;
else if (bp->hwrm_cmd_max_timeout > HWRM_CMD_MAX_TIMEOUT)
netdev_warn(bp->dev, "Device requests max timeout of %d seconds, may trigger hung task watchdog\n",
bp->hwrm_cmd_max_timeout / 1000);
if (resp->hwrm_intf_maj_8b >= 1) {
bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len);
bp->hwrm_max_ext_req_len = le16_to_cpu(resp->max_ext_req_len);
}
if (bp->hwrm_max_ext_req_len < HWRM_MAX_REQ_LEN)
bp->hwrm_max_ext_req_len = HWRM_MAX_REQ_LEN;
bp->chip_num = le16_to_cpu(resp->chip_num);
bp->chip_rev = resp->chip_rev;
if (bp->chip_num == CHIP_NUM_58700 && !resp->chip_rev &&
!resp->chip_metal)
bp->flags |= BNXT_FLAG_CHIP_NITRO_A0;
dev_caps_cfg = le32_to_cpu(resp->dev_caps_cfg);
if ((dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_SUPPORTED) &&
(dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_REQUIRED))
bp->fw_cap |= BNXT_FW_CAP_SHORT_CMD;
if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_KONG_MB_CHNL_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_KONG_MB_CHNL;
if (dev_caps_cfg &
VER_GET_RESP_DEV_CAPS_CFG_FLOW_HANDLE_64BIT_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_OVS_64BIT_HANDLE;
if (dev_caps_cfg &
VER_GET_RESP_DEV_CAPS_CFG_TRUSTED_VF_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_TRUSTED_VF;
if (dev_caps_cfg &
VER_GET_RESP_DEV_CAPS_CFG_CFA_ADV_FLOW_MGNT_SUPPORTED)
bp->fw_cap |= BNXT_FW_CAP_CFA_ADV_FLOW;
hwrm_ver_get_exit:
hwrm_req_drop(bp, req);
return rc;
}
int bnxt_hwrm_fw_set_time(struct bnxt *bp)
{
struct hwrm_fw_set_time_input *req;
struct tm tm;
time64_t now = ktime_get_real_seconds();
int rc;
if ((BNXT_VF(bp) && bp->hwrm_spec_code < 0x10901) ||
bp->hwrm_spec_code < 0x10400)
return -EOPNOTSUPP;
time64_to_tm(now, 0, &tm);
rc = hwrm_req_init(bp, req, HWRM_FW_SET_TIME);
if (rc)
return rc;
req->year = cpu_to_le16(1900 + tm.tm_year);
req->month = 1 + tm.tm_mon;
req->day = tm.tm_mday;
req->hour = tm.tm_hour;
req->minute = tm.tm_min;
req->second = tm.tm_sec;
return hwrm_req_send(bp, req);
}
static void bnxt_add_one_ctr(u64 hw, u64 *sw, u64 mask)
{
u64 sw_tmp;
hw &= mask;
sw_tmp = (*sw & ~mask) | hw;
if (hw < (*sw & mask))
sw_tmp += mask + 1;
WRITE_ONCE(*sw, sw_tmp);
}
static void __bnxt_accumulate_stats(__le64 *hw_stats, u64 *sw_stats, u64 *masks,
int count, bool ignore_zero)
{
int i;
for (i = 0; i < count; i++) {
u64 hw = le64_to_cpu(READ_ONCE(hw_stats[i]));
if (ignore_zero && !hw)
continue;
if (masks[i] == -1ULL)
sw_stats[i] = hw;
else
bnxt_add_one_ctr(hw, &sw_stats[i], masks[i]);
}
}
static void bnxt_accumulate_stats(struct bnxt_stats_mem *stats)
{
if (!stats->hw_stats)
return;
__bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats,
stats->hw_masks, stats->len / 8, false);
}
static void bnxt_accumulate_all_stats(struct bnxt *bp)
{
struct bnxt_stats_mem *ring0_stats;
bool ignore_zero = false;
int i;
/* Chip bug. Counter intermittently becomes 0. */
if (bp->flags & BNXT_FLAG_CHIP_P5)
ignore_zero = true;
for (i = 0; i < bp->cp_nr_rings; i++) {
struct bnxt_napi *bnapi = bp->bnapi[i];
struct bnxt_cp_ring_info *cpr;
struct bnxt_stats_mem *stats;
cpr = &bnapi->cp_ring;
stats = &cpr->stats;
if (!i)
ring0_stats = stats;
__bnxt_accumulate_stats(stats->hw_stats, stats->sw_stats,
ring0_stats->hw_masks,
ring0_stats->len / 8, ignore_zero);
}
if (bp->flags & BNXT_FLAG_PORT_STATS) {
struct bnxt_stats_mem *stats = &bp->port_stats;
__le64 *hw_stats = stats->hw_stats;
u64 *sw_stats = stats->sw_stats;
u64 *masks = stats->hw_masks;
int cnt;
cnt = sizeof(struct rx_port_stats) / 8;
__bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false);
hw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
sw_stats += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
masks += BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
cnt = sizeof(struct tx_port_stats) / 8;
__bnxt_accumulate_stats(hw_stats, sw_stats, masks, cnt, false);
}
if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) {
bnxt_accumulate_stats(&bp->rx_port_stats_ext);
bnxt_accumulate_stats(&bp->tx_port_stats_ext);
}
}
static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags)
{
struct hwrm_port_qstats_input *req;
struct bnxt_pf_info *pf = &bp->pf;
int rc;
if (!(bp->flags & BNXT_FLAG_PORT_STATS))
return 0;
if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED))
return -EOPNOTSUPP;
rc = hwrm_req_init(bp, req, HWRM_PORT_QSTATS);
if (rc)
return rc;
req->flags = flags;
req->port_id = cpu_to_le16(pf->port_id);
req->tx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map +
BNXT_TX_PORT_STATS_BYTE_OFFSET);
req->rx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map);
return hwrm_req_send(bp, req);
}
static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags)
{
struct hwrm_queue_pri2cos_qcfg_output *resp_qc;
struct hwrm_queue_pri2cos_qcfg_input *req_qc;
struct hwrm_port_qstats_ext_output *resp_qs;
struct hwrm_port_qstats_ext_input *req_qs;
struct bnxt_pf_info *pf = &bp->pf;
u32 tx_stat_size;
int rc;
if (!(bp->flags & BNXT_FLAG_PORT_STATS_EXT))
return 0;
if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED))
return -EOPNOTSUPP;
rc = hwrm_req_init(bp, req_qs, HWRM_PORT_QSTATS_EXT);
if (rc)
return rc;
req_qs->flags = flags;
req_qs->port_id = cpu_to_le16(pf->port_id);
req_qs->rx_stat_size = cpu_to_le16(sizeof(struct rx_port_stats_ext));
req_qs->rx_stat_host_addr = cpu_to_le64(bp->rx_port_stats_ext.hw_stats_map);
tx_stat_size = bp->tx_port_stats_ext.hw_stats ?
sizeof(struct tx_port_stats_ext) : 0;
req_qs->tx_stat_size = cpu_to_le16(tx_stat_size);
req_qs->tx_stat_host_addr = cpu_to_le64(bp->tx_port_stats_ext.hw_stats_map);
resp_qs = hwrm_req_hold(bp, req_qs);
rc = hwrm_req_send(bp, req_qs);
if (!rc) {
bp->fw_rx_stats_ext_size =
le16_to_cpu(resp_qs->rx_stat_size) / 8;
if (BNXT_FW_MAJ(bp) < 220 &&
bp->fw_rx_stats_ext_size > BNXT_RX_STATS_EXT_NUM_LEGACY)
bp->fw_rx_stats_ext_size = BNXT_RX_STATS_EXT_NUM_LEGACY;
bp->fw_tx_stats_ext_size = tx_stat_size ?
le16_to_cpu(resp_qs->tx_stat_size) / 8 : 0;
} else {
bp->fw_rx_stats_ext_size = 0;
bp->fw_tx_stats_ext_size = 0;
}
hwrm_req_drop(bp, req_qs);
if (flags)
return rc;
if (bp->fw_tx_stats_ext_size <=
offsetof(struct tx_port_stats_ext, pfc_pri0_tx_duration_us) / 8) {
bp->pri2cos_valid = 0;
return rc;
}
rc = hwrm_req_init(bp, req_qc, HWRM_QUEUE_PRI2COS_QCFG);
if (rc)
return rc;
req_qc->flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN);
resp_qc = hwrm_req_hold(bp, req_qc);
rc = hwrm_req_send(bp, req_qc);
if (!rc) {
u8 *pri2cos;
int i, j;
pri2cos = &resp_qc->pri0_cos_queue_id;
for (i = 0; i < 8; i++) {
u8 queue_id = pri2cos[i];
u8 queue_idx;
/* Per port queue IDs start from 0, 10, 20, etc */
queue_idx = queue_id % 10;
if (queue_idx > BNXT_MAX_QUEUE) {
bp->pri2cos_valid = false;
hwrm_req_drop(bp, req_qc);
return rc;
}
for (j = 0; j < bp->max_q; j++) {
if (bp->q_ids[j] == queue_id)
bp->pri2cos_idx[i] = queue_idx;
}
}
bp->pri2cos_valid = true;
}
hwrm_req_drop(bp, req_qc);
return rc;
}
static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp)
{
bnxt_hwrm_tunnel_dst_port_free(bp,
TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN);
bnxt_hwrm_tunnel_dst_port_free(bp,
TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
}
static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa)
{
int rc, i;
u32 tpa_flags = 0;
if (set_tpa)
tpa_flags = bp->flags & BNXT_FLAG_TPA;
else if (BNXT_NO_FW_ACCESS(bp))
return 0;
for (i = 0; i < bp->nr_vnics; i++) {
rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags);
if (rc) {
netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n",
i, rc);
return rc;
}
}
return 0;
}
static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp)
{
int i;
for (i = 0; i < bp->nr_vnics; i++)
bnxt_hwrm_vnic_set_rss(bp, i, false);
}
static void bnxt_clear_vnic(struct bnxt *bp)
{
if (!bp->vnic_info)
return;
bnxt_hwrm_clear_vnic_filter(bp);
if (!(bp->flags & BNXT_FLAG_CHIP_P5)) {
/* clear all RSS setting before free vnic ctx */
bnxt_hwrm_clear_vnic_rss(bp);
bnxt_hwrm_vnic_ctx_free(bp);
}
/* before free the vnic, undo the vnic tpa settings */
if (bp->flags & BNXT_FLAG_TPA)
bnxt_set_tpa(bp, false);
bnxt_hwrm_vnic_free(bp);
if (bp->flags & BNXT_FLAG_CHIP_P5)
bnxt_hwrm_vnic_ctx_free(bp);
}
static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path,
bool irq_re_init)
{
bnxt_clear_vnic(bp);
bnxt_hwrm_ring_free(bp, close_path);
bnxt_hwrm_ring_grp_free(bp);
if (irq_re_init) {
bnxt_hwrm_stat_ctx_free(bp);
bnxt_hwrm_free_tunnel_ports(bp);
}
}
static int bnxt_hwrm_set_br_mode(struct bnxt *bp, u16 br_mode)
{
struct hwrm_func_cfg_input *req;
u8 evb_mode;
int rc;
if (br_mode == BRIDGE_MODE_VEB)
evb_mode = FUNC_CFG_REQ_EVB_MODE_VEB;
else if (br_mode == BRIDGE_MODE_VEPA)
evb_mode = FUNC_CFG_REQ_EVB_MODE_VEPA;
else
return -EINVAL;
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_EVB_MODE);
req->evb_mode = evb_mode;
return hwrm_req_send(bp, req);
}
static int bnxt_hwrm_set_cache_line_size(struct bnxt *bp, int size)
{
struct hwrm_func_cfg_input *req;
int rc;
if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10803)
return 0;
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_CACHE_LINESIZE);
req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_64;
if (size == 128)
req->options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_128;
return hwrm_req_send(bp, req);
}
static int __bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
{
struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
int rc;
if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG)
goto skip_rss_ctx;
/* allocate context for vnic */
rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 0);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
vnic_id, rc);
goto vnic_setup_err;
}
bp->rsscos_nr_ctxs++;
if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 1);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d cos ctx alloc failure rc: %x\n",
vnic_id, rc);
goto vnic_setup_err;
}
bp->rsscos_nr_ctxs++;
}
skip_rss_ctx:
/* configure default vnic, ring grp */
rc = bnxt_hwrm_vnic_cfg(bp, vnic_id);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n",
vnic_id, rc);
goto vnic_setup_err;
}
/* Enable RSS hashing on vnic */
rc = bnxt_hwrm_vnic_set_rss(bp, vnic_id, true);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n",
vnic_id, rc);
goto vnic_setup_err;
}
if (bp->flags & BNXT_FLAG_AGG_RINGS) {
rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n",
vnic_id, rc);
}
}
vnic_setup_err:
return rc;
}
static int __bnxt_setup_vnic_p5(struct bnxt *bp, u16 vnic_id)
{
int rc, i, nr_ctxs;
nr_ctxs = bnxt_get_nr_rss_ctxs(bp, bp->rx_nr_rings);
for (i = 0; i < nr_ctxs; i++) {
rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, i);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d ctx %d alloc failure rc: %x\n",
vnic_id, i, rc);
break;
}
bp->rsscos_nr_ctxs++;
}
if (i < nr_ctxs)
return -ENOMEM;
rc = bnxt_hwrm_vnic_set_rss_p5(bp, vnic_id, true);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %d\n",
vnic_id, rc);
return rc;
}
rc = bnxt_hwrm_vnic_cfg(bp, vnic_id);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n",
vnic_id, rc);
return rc;
}
if (bp->flags & BNXT_FLAG_AGG_RINGS) {
rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n",
vnic_id, rc);
}
}
return rc;
}
static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
{
if (bp->flags & BNXT_FLAG_CHIP_P5)
return __bnxt_setup_vnic_p5(bp, vnic_id);
else
return __bnxt_setup_vnic(bp, vnic_id);
}
static int bnxt_alloc_rfs_vnics(struct bnxt *bp)
{
#ifdef CONFIG_RFS_ACCEL
int i, rc = 0;
if (bp->flags & BNXT_FLAG_CHIP_P5)
return 0;
for (i = 0; i < bp->rx_nr_rings; i++) {
struct bnxt_vnic_info *vnic;
u16 vnic_id = i + 1;
u16 ring_id = i;
if (vnic_id >= bp->nr_vnics)
break;
vnic = &bp->vnic_info[vnic_id];
vnic->flags |= BNXT_VNIC_RFS_FLAG;
if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
vnic->flags |= BNXT_VNIC_RFS_NEW_RSS_FLAG;
rc = bnxt_hwrm_vnic_alloc(bp, vnic_id, ring_id, 1);
if (rc) {
netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n",
vnic_id, rc);
break;
}
rc = bnxt_setup_vnic(bp, vnic_id);
if (rc)
break;
}
return rc;
#else
return 0;
#endif
}
/* Allow PF, trusted VFs and VFs with default VLAN to be in promiscuous mode */
static bool bnxt_promisc_ok(struct bnxt *bp)
{
#ifdef CONFIG_BNXT_SRIOV
if (BNXT_VF(bp) && !bp->vf.vlan && !bnxt_is_trusted_vf(bp, &bp->vf))
return false;
#endif
return true;
}
static int bnxt_setup_nitroa0_vnic(struct bnxt *bp)
{
unsigned int rc = 0;
rc = bnxt_hwrm_vnic_alloc(bp, 1, bp->rx_nr_rings - 1, 1);
if (rc) {
netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n",
rc);
return rc;
}
rc = bnxt_hwrm_vnic_cfg(bp, 1);
if (rc) {
netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n",
rc);
return rc;
}
return rc;
}
static int bnxt_cfg_rx_mode(struct bnxt *);
static bool bnxt_mc_list_updated(struct bnxt *, u32 *);
static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init)
{
struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
int rc = 0;
unsigned int rx_nr_rings = bp->rx_nr_rings;
if (irq_re_init) {
rc = bnxt_hwrm_stat_ctx_alloc(bp);
if (rc) {
netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n",
rc);
goto err_out;
}
}
rc = bnxt_hwrm_ring_alloc(bp);
if (rc) {
netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc);
goto err_out;
}
rc = bnxt_hwrm_ring_grp_alloc(bp);
if (rc) {
netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc);
goto err_out;
}
if (BNXT_CHIP_TYPE_NITRO_A0(bp))
rx_nr_rings--;
/* default vnic 0 */
rc = bnxt_hwrm_vnic_alloc(bp, 0, 0, rx_nr_rings);
if (rc) {
netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc);
goto err_out;
}
rc = bnxt_setup_vnic(bp, 0);
if (rc)
goto err_out;
if (bp->flags & BNXT_FLAG_RFS) {
rc = bnxt_alloc_rfs_vnics(bp);
if (rc)
goto err_out;
}
if (bp->flags & BNXT_FLAG_TPA) {
rc = bnxt_set_tpa(bp, true);
if (rc)
goto err_out;
}
if (BNXT_VF(bp))
bnxt_update_vf_mac(bp);
/* Filter for default vnic 0 */
rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr);
if (rc) {
if (BNXT_VF(bp) && rc == -ENODEV)
netdev_err(bp->dev, "Cannot configure L2 filter while PF is unavailable\n");
else
netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
goto err_out;
}
vnic->uc_filter_count = 1;
vnic->rx_mask = 0;
if (test_bit(BNXT_STATE_HALF_OPEN, &bp->state))
goto skip_rx_mask;
if (bp->dev->flags & IFF_BROADCAST)
vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST;
if (bp->dev->flags & IFF_PROMISC)
vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
if (bp->dev->flags & IFF_ALLMULTI) {
vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
vnic->mc_list_count = 0;
} else if (bp->dev->flags & IFF_MULTICAST) {
u32 mask = 0;
bnxt_mc_list_updated(bp, &mask);
vnic->rx_mask |= mask;
}
rc = bnxt_cfg_rx_mode(bp);
if (rc)
goto err_out;
skip_rx_mask:
rc = bnxt_hwrm_set_coal(bp);
if (rc)
netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n",
rc);
if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
rc = bnxt_setup_nitroa0_vnic(bp);
if (rc)
netdev_err(bp->dev, "Special vnic setup failure for NS2 A0 rc: %x\n",
rc);
}
if (BNXT_VF(bp)) {
bnxt_hwrm_func_qcfg(bp);
netdev_update_features(bp->dev);
}
return 0;
err_out:
bnxt_hwrm_resource_free(bp, 0, true);
return rc;
}
static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init)
{
bnxt_hwrm_resource_free(bp, 1, irq_re_init);
return 0;
}
static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init)
{
bnxt_init_cp_rings(bp);
bnxt_init_rx_rings(bp);
bnxt_init_tx_rings(bp);
bnxt_init_ring_grps(bp, irq_re_init);
bnxt_init_vnics(bp);
return bnxt_init_chip(bp, irq_re_init);
}
static int bnxt_set_real_num_queues(struct bnxt *bp)
{
int rc;
struct net_device *dev = bp->dev;
rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings -
bp->tx_nr_rings_xdp);
if (rc)
return rc;
rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings);
if (rc)
return rc;
#ifdef CONFIG_RFS_ACCEL
if (bp->flags & BNXT_FLAG_RFS)
dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings);
#endif
return rc;
}
static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max,
bool shared)
{
int _rx = *rx, _tx = *tx;
if (shared) {
*rx = min_t(int, _rx, max);
*tx = min_t(int, _tx, max);
} else {
if (max < 2)
return -ENOMEM;
while (_rx + _tx > max) {
if (_rx > _tx && _rx > 1)
_rx--;
else if (_tx > 1)
_tx--;
}
*rx = _rx;
*tx = _tx;
}
return 0;
}
static void bnxt_setup_msix(struct bnxt *bp)
{
const int len = sizeof(bp->irq_tbl[0].name);
struct net_device *dev = bp->dev;
int tcs, i;
tcs = netdev_get_num_tc(dev);
if (tcs) {
int i, off, count;
for (i = 0; i < tcs; i++) {
count = bp->tx_nr_rings_per_tc;
off = i * count;
netdev_set_tc_queue(dev, i, count, off);
}
}
for (i = 0; i < bp->cp_nr_rings; i++) {
int map_idx = bnxt_cp_num_to_irq_num(bp, i);
char *attr;
if (bp->flags & BNXT_FLAG_SHARED_RINGS)
attr = "TxRx";
else if (i < bp->rx_nr_rings)
attr = "rx";
else
attr = "tx";
snprintf(bp->irq_tbl[map_idx].name, len, "%s-%s-%d", dev->name,
attr, i);
bp->irq_tbl[map_idx].handler = bnxt_msix;
}
}
static void bnxt_setup_inta(struct bnxt *bp)
{
const int len = sizeof(bp->irq_tbl[0].name);
if (netdev_get_num_tc(bp->dev))
netdev_reset_tc(bp->dev);
snprintf(bp->irq_tbl[0].name, len, "%s-%s-%d", bp->dev->name, "TxRx",
0);
bp->irq_tbl[0].handler = bnxt_inta;
}
static int bnxt_init_int_mode(struct bnxt *bp);
static int bnxt_setup_int_mode(struct bnxt *bp)
{
int rc;
if (!bp->irq_tbl) {
rc = bnxt_init_int_mode(bp);
if (rc || !bp->irq_tbl)
return rc ?: -ENODEV;
}
if (bp->flags & BNXT_FLAG_USING_MSIX)
bnxt_setup_msix(bp);
else
bnxt_setup_inta(bp);
rc = bnxt_set_real_num_queues(bp);
return rc;
}
#ifdef CONFIG_RFS_ACCEL
static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp)
{
return bp->hw_resc.max_rsscos_ctxs;
}
static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp)
{
return bp->hw_resc.max_vnics;
}
#endif
unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp)
{
return bp->hw_resc.max_stat_ctxs;
}
unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp)
{
return bp->hw_resc.max_cp_rings;
}
static unsigned int bnxt_get_max_func_cp_rings_for_en(struct bnxt *bp)
{
unsigned int cp = bp->hw_resc.max_cp_rings;
if (!(bp->flags & BNXT_FLAG_CHIP_P5))
cp -= bnxt_get_ulp_msix_num(bp);
return cp;
}
static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp)
{
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
if (bp->flags & BNXT_FLAG_CHIP_P5)
return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_nqs);
return min_t(unsigned int, hw_resc->max_irqs, hw_resc->max_cp_rings);
}
static void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs)
{
bp->hw_resc.max_irqs = max_irqs;
}
unsigned int bnxt_get_avail_cp_rings_for_en(struct bnxt *bp)
{
unsigned int cp;
cp = bnxt_get_max_func_cp_rings_for_en(bp);
if (bp->flags & BNXT_FLAG_CHIP_P5)
return cp - bp->rx_nr_rings - bp->tx_nr_rings;
else
return cp - bp->cp_nr_rings;
}
unsigned int bnxt_get_avail_stat_ctxs_for_en(struct bnxt *bp)
{
return bnxt_get_max_func_stat_ctxs(bp) - bnxt_get_func_stat_ctxs(bp);
}
int bnxt_get_avail_msix(struct bnxt *bp, int num)
{
int max_cp = bnxt_get_max_func_cp_rings(bp);
int max_irq = bnxt_get_max_func_irqs(bp);
int total_req = bp->cp_nr_rings + num;
int max_idx, avail_msix;
max_idx = bp->total_irqs;
if (!(bp->flags & BNXT_FLAG_CHIP_P5))
max_idx = min_t(int, bp->total_irqs, max_cp);
avail_msix = max_idx - bp->cp_nr_rings;
if (!BNXT_NEW_RM(bp) || avail_msix >= num)
return avail_msix;
if (max_irq < total_req) {
num = max_irq - bp->cp_nr_rings;
if (num <= 0)
return 0;
}
return num;
}
static int bnxt_get_num_msix(struct bnxt *bp)
{
if (!BNXT_NEW_RM(bp))
return bnxt_get_max_func_irqs(bp);
return bnxt_nq_rings_in_use(bp);
}
static int bnxt_init_msix(struct bnxt *bp)
{
int i, total_vecs, max, rc = 0, min = 1, ulp_msix;
struct msix_entry *msix_ent;
total_vecs = bnxt_get_num_msix(bp);
max = bnxt_get_max_func_irqs(bp);
if (total_vecs > max)
total_vecs = max;
if (!total_vecs)
return 0;
msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL);
if (!msix_ent)
return -ENOMEM;
for (i = 0; i < total_vecs; i++) {
msix_ent[i].entry = i;
msix_ent[i].vector = 0;
}
if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
min = 2;
total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs);
ulp_msix = bnxt_get_ulp_msix_num(bp);
if (total_vecs < 0 || total_vecs < ulp_msix) {
rc = -ENODEV;
goto msix_setup_exit;
}
bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL);
if (bp->irq_tbl) {
for (i = 0; i < total_vecs; i++)
bp->irq_tbl[i].vector = msix_ent[i].vector;
bp->total_irqs = total_vecs;
/* Trim rings based upon num of vectors allocated */
rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings,
total_vecs - ulp_msix, min == 1);
if (rc)
goto msix_setup_exit;
bp->cp_nr_rings = (min == 1) ?
max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
bp->tx_nr_rings + bp->rx_nr_rings;
} else {
rc = -ENOMEM;
goto msix_setup_exit;
}
bp->flags |= BNXT_FLAG_USING_MSIX;
kfree(msix_ent);
return 0;
msix_setup_exit:
netdev_err(bp->dev, "bnxt_init_msix err: %x\n", rc);
kfree(bp->irq_tbl);
bp->irq_tbl = NULL;
pci_disable_msix(bp->pdev);
kfree(msix_ent);
return rc;
}
static int bnxt_init_inta(struct bnxt *bp)
{
bp->irq_tbl = kzalloc(sizeof(struct bnxt_irq), GFP_KERNEL);
if (!bp->irq_tbl)
return -ENOMEM;
bp->total_irqs = 1;
bp->rx_nr_rings = 1;
bp->tx_nr_rings = 1;
bp->cp_nr_rings = 1;
bp->flags |= BNXT_FLAG_SHARED_RINGS;
bp->irq_tbl[0].vector = bp->pdev->irq;
return 0;
}
static int bnxt_init_int_mode(struct bnxt *bp)
{
int rc = -ENODEV;
if (bp->flags & BNXT_FLAG_MSIX_CAP)
rc = bnxt_init_msix(bp);
if (!(bp->flags & BNXT_FLAG_USING_MSIX) && BNXT_PF(bp)) {
/* fallback to INTA */
rc = bnxt_init_inta(bp);
}
return rc;
}
static void bnxt_clear_int_mode(struct bnxt *bp)
{
if (bp->flags & BNXT_FLAG_USING_MSIX)
pci_disable_msix(bp->pdev);
kfree(bp->irq_tbl);
bp->irq_tbl = NULL;
bp->flags &= ~BNXT_FLAG_USING_MSIX;
}
int bnxt_reserve_rings(struct bnxt *bp, bool irq_re_init)
{
int tcs = netdev_get_num_tc(bp->dev);
bool irq_cleared = false;
int rc;
if (!bnxt_need_reserve_rings(bp))
return 0;
if (irq_re_init && BNXT_NEW_RM(bp) &&
bnxt_get_num_msix(bp) != bp->total_irqs) {
bnxt_ulp_irq_stop(bp);
bnxt_clear_int_mode(bp);
irq_cleared = true;
}
rc = __bnxt_reserve_rings(bp);
if (irq_cleared) {
if (!rc)
rc = bnxt_init_int_mode(bp);
bnxt_ulp_irq_restart(bp, rc);
}
if (rc) {
netdev_err(bp->dev, "ring reservation/IRQ init failure rc: %d\n", rc);
return rc;
}
if (tcs && (bp->tx_nr_rings_per_tc * tcs != bp->tx_nr_rings)) {
netdev_err(bp->dev, "tx ring reservation failure\n");
netdev_reset_tc(bp->dev);
bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
return -ENOMEM;
}
return 0;
}
static void bnxt_free_irq(struct bnxt *bp)
{
struct bnxt_irq *irq;
int i;
#ifdef CONFIG_RFS_ACCEL
free_irq_cpu_rmap(bp->dev->rx_cpu_rmap);
bp->dev->rx_cpu_rmap = NULL;
#endif
if (!bp->irq_tbl || !bp->bnapi)
return;
for (i = 0; i < bp->cp_nr_rings; i++) {
int map_idx = bnxt_cp_num_to_irq_num(bp, i);
irq = &bp->irq_tbl[map_idx];
if (irq->requested) {
if (irq->have_cpumask) {
irq_set_affinity_hint(irq->vector, NULL);
free_cpumask_var(irq->cpu_mask);
irq->have_cpumask = 0;
}
free_irq(irq->vector, bp->bnapi[i]);
}
irq->requested = 0;
}
}
static int bnxt_request_irq(struct bnxt *bp)
{
int i, j, rc = 0;
unsigned long flags = 0;
#ifdef CONFIG_RFS_ACCEL
struct cpu_rmap *rmap;
#endif
rc = bnxt_setup_int_mode(bp);
if (rc) {
netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n",
rc);
return rc;
}
#ifdef CONFIG_RFS_ACCEL
rmap = bp->dev->rx_cpu_rmap;
#endif
if (!(bp->flags & BNXT_FLAG_USING_MSIX))
flags = IRQF_SHARED;
for (i = 0, j = 0; i < bp->cp_nr_rings; i++) {
int map_idx = bnxt_cp_num_to_irq_num(bp, i);
struct bnxt_irq *irq = &bp->irq_tbl[map_idx];
#ifdef CONFIG_RFS_ACCEL
if (rmap && bp->bnapi[i]->rx_ring) {
rc = irq_cpu_rmap_add(rmap, irq->vector);
if (rc)
netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n",
j);
j++;
}
#endif
rc = request_irq(irq->vector, irq->handler, flags, irq->name,
bp->bnapi[i]);
if (rc)
break;
irq->requested = 1;
if (zalloc_cpumask_var(&irq->cpu_mask, GFP_KERNEL)) {
int numa_node = dev_to_node(&bp->pdev->dev);
irq->have_cpumask = 1;
cpumask_set_cpu(cpumask_local_spread(i, numa_node),
irq->cpu_mask);
rc = irq_set_affinity_hint(irq->vector, irq->cpu_mask);
if (rc) {
netdev_warn(bp->dev,
"Set affinity failed, IRQ = %d\n",
irq->vector);
break;
}
}
}
return rc;
}
static void bnxt_del_napi(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];
__netif_napi_del(&bnapi->napi);
}
/* We called __netif_napi_del(), we need
* to respect an RCU grace period before freeing napi structures.
*/
synchronize_net();
}
static void bnxt_init_napi(struct bnxt *bp)
{
int i;
unsigned int cp_nr_rings = bp->cp_nr_rings;
struct bnxt_napi *bnapi;
if (bp->flags & BNXT_FLAG_USING_MSIX) {
int (*poll_fn)(struct napi_struct *, int) = bnxt_poll;
if (bp->flags & BNXT_FLAG_CHIP_P5)
poll_fn = bnxt_poll_p5;
else if (BNXT_CHIP_TYPE_NITRO_A0(bp))
cp_nr_rings--;
for (i = 0; i < cp_nr_rings; i++) {
bnapi = bp->bnapi[i];
netif_napi_add(bp->dev, &bnapi->napi, poll_fn, 64);
}
if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
bnapi = bp->bnapi[cp_nr_rings];
netif_napi_add(bp->dev, &bnapi->napi,
bnxt_poll_nitroa0, 64);
}
} else {
bnapi = bp->bnapi[0];
netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll, 64);
}
}
static void bnxt_disable_napi(struct bnxt *bp)
{
int i;
if (!bp->bnapi ||
test_and_set_bit(BNXT_STATE_NAPI_DISABLED, &bp->state))
return;
for (i = 0; i < bp->cp_nr_rings; i++) {
struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
napi_disable(&bp->bnapi[i]->napi);
if (bp->bnapi[i]->rx_ring)
cancel_work_sync(&cpr->dim.work);
}
}
static void bnxt_enable_napi(struct bnxt *bp)
{
int i;
clear_bit(BNXT_STATE_NAPI_DISABLED, &bp->state);
for (i = 0; i < bp->cp_nr_rings; i++) {
struct bnxt_napi *bnapi = bp->bnapi[i];
struct bnxt_cp_ring_info *cpr;
cpr = &bnapi->cp_ring;
if (bnapi->in_reset)
cpr->sw_stats.rx.rx_resets++;
bnapi->in_reset = false;
if (bnapi->rx_ring) {
INIT_WORK(&cpr->dim.work, bnxt_dim_work);
cpr->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE;
}
napi_enable(&bnapi->napi);
}
}
void bnxt_tx_disable(struct bnxt *bp)
{
int i;
struct bnxt_tx_ring_info *txr;
if (bp->tx_ring) {
for (i = 0; i < bp->tx_nr_rings; i++) {
txr = &bp->tx_ring[i];
WRITE_ONCE(txr->dev_state, BNXT_DEV_STATE_CLOSING);
}
}
/* Make sure napi polls see @dev_state change */
synchronize_net();
/* Drop carrier first to prevent TX timeout */
netif_carrier_off(bp->dev);
/* Stop all TX queues */
netif_tx_disable(bp->dev);
}
void bnxt_tx_enable(struct bnxt *bp)
{
int i;
struct bnxt_tx_ring_info *txr;
for (i = 0; i < bp->tx_nr_rings; i++) {
txr = &bp->tx_ring[i];
WRITE_ONCE(txr->dev_state, 0);
}
/* Make sure napi polls see @dev_state change */
synchronize_net();
netif_tx_wake_all_queues(bp->dev);
if (BNXT_LINK_IS_UP(bp))
netif_carrier_on(bp->dev);
}
static char *bnxt_report_fec(struct bnxt_link_info *link_info)
{
u8 active_fec = link_info->active_fec_sig_mode &
PORT_PHY_QCFG_RESP_ACTIVE_FEC_MASK;
switch (active_fec) {
default:
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_NONE_ACTIVE:
return "None";
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE74_ACTIVE:
return "Clause 74 BaseR";
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE91_ACTIVE:
return "Clause 91 RS(528,514)";
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_1XN_ACTIVE:
return "Clause 91 RS544_1XN";
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_IEEE_ACTIVE:
return "Clause 91 RS(544,514)";
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_1XN_ACTIVE:
return "Clause 91 RS272_1XN";
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE:
return "Clause 91 RS(272,257)";
}
}
void bnxt_report_link(struct bnxt *bp)
{
if (BNXT_LINK_IS_UP(bp)) {
const char *signal = "";
const char *flow_ctrl;
const char *duplex;
u32 speed;
u16 fec;
netif_carrier_on(bp->dev);
speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
if (speed == SPEED_UNKNOWN) {
netdev_info(bp->dev, "NIC Link is Up, speed unknown\n");
return;
}
if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL)
duplex = "full";
else
duplex = "half";
if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH)
flow_ctrl = "ON - receive & transmit";
else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX)
flow_ctrl = "ON - transmit";
else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX)
flow_ctrl = "ON - receive";
else
flow_ctrl = "none";
if (bp->link_info.phy_qcfg_resp.option_flags &
PORT_PHY_QCFG_RESP_OPTION_FLAGS_SIGNAL_MODE_KNOWN) {
u8 sig_mode = bp->link_info.active_fec_sig_mode &
PORT_PHY_QCFG_RESP_SIGNAL_MODE_MASK;
switch (sig_mode) {
case PORT_PHY_QCFG_RESP_SIGNAL_MODE_NRZ:
signal = "(NRZ) ";
break;
case PORT_PHY_QCFG_RESP_SIGNAL_MODE_PAM4:
signal = "(PAM4) ";
break;
default:
break;
}
}
netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s%s duplex, Flow control: %s\n",
speed, signal, duplex, flow_ctrl);
if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP)
netdev_info(bp->dev, "EEE is %s\n",
bp->eee.eee_active ? "active" :
"not active");
fec = bp->link_info.fec_cfg;
if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED))
netdev_info(bp->dev, "FEC autoneg %s encoding: %s\n",
(fec & BNXT_FEC_AUTONEG) ? "on" : "off",
bnxt_report_fec(&bp->link_info));
} else {
netif_carrier_off(bp->dev);
netdev_err(bp->dev, "NIC Link is Down\n");
}
}
static bool bnxt_phy_qcaps_no_speed(struct hwrm_port_phy_qcaps_output *resp)
{
if (!resp->supported_speeds_auto_mode &&
!resp->supported_speeds_force_mode &&
!resp->supported_pam4_speeds_auto_mode &&
!resp->supported_pam4_speeds_force_mode)
return true;
return false;
}
static int bnxt_hwrm_phy_qcaps(struct bnxt *bp)
{
struct bnxt_link_info *link_info = &bp->link_info;
struct hwrm_port_phy_qcaps_output *resp;
struct hwrm_port_phy_qcaps_input *req;
int rc = 0;
if (bp->hwrm_spec_code < 0x10201)
return 0;
rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCAPS);
if (rc)
return rc;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc)
goto hwrm_phy_qcaps_exit;
bp->phy_flags = resp->flags | (le16_to_cpu(resp->flags2) << 8);
if (resp->flags & PORT_PHY_QCAPS_RESP_FLAGS_EEE_SUPPORTED) {
struct ethtool_eee *eee = &bp->eee;
u16 fw_speeds = le16_to_cpu(resp->supported_speeds_eee_mode);
eee->supported = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
bp->lpi_tmr_lo = le32_to_cpu(resp->tx_lpi_timer_low) &
PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_LOW_MASK;
bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) &
PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK;
}
if (bp->hwrm_spec_code >= 0x10a01) {
if (bnxt_phy_qcaps_no_speed(resp)) {
link_info->phy_state = BNXT_PHY_STATE_DISABLED;
netdev_warn(bp->dev, "Ethernet link disabled\n");
} else if (link_info->phy_state == BNXT_PHY_STATE_DISABLED) {
link_info->phy_state = BNXT_PHY_STATE_ENABLED;
netdev_info(bp->dev, "Ethernet link enabled\n");
/* Phy re-enabled, reprobe the speeds */
link_info->support_auto_speeds = 0;
link_info->support_pam4_auto_speeds = 0;
}
}
if (resp->supported_speeds_auto_mode)
link_info->support_auto_speeds =
le16_to_cpu(resp->supported_speeds_auto_mode);
if (resp->supported_pam4_speeds_auto_mode)
link_info->support_pam4_auto_speeds =
le16_to_cpu(resp->supported_pam4_speeds_auto_mode);
bp->port_count = resp->port_cnt;
hwrm_phy_qcaps_exit:
hwrm_req_drop(bp, req);
return rc;
}
static bool bnxt_support_dropped(u16 advertising, u16 supported)
{
u16 diff = advertising ^ supported;
return ((supported | diff) != supported);
}
int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
{
struct bnxt_link_info *link_info = &bp->link_info;
struct hwrm_port_phy_qcfg_output *resp;
struct hwrm_port_phy_qcfg_input *req;
u8 link_state = link_info->link_state;
bool support_changed = false;
int rc;
rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_QCFG);
if (rc)
return rc;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc) {
hwrm_req_drop(bp, req);
if (BNXT_VF(bp) && rc == -ENODEV) {
netdev_warn(bp->dev, "Cannot obtain link state while PF unavailable.\n");
rc = 0;
}
return rc;
}
memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp));
link_info->phy_link_status = resp->link;
link_info->duplex = resp->duplex_cfg;
if (bp->hwrm_spec_code >= 0x10800)
link_info->duplex = resp->duplex_state;
link_info->pause = resp->pause;
link_info->auto_mode = resp->auto_mode;
link_info->auto_pause_setting = resp->auto_pause;
link_info->lp_pause = resp->link_partner_adv_pause;
link_info->force_pause_setting = resp->force_pause;
link_info->duplex_setting = resp->duplex_cfg;
if (link_info->phy_link_status == BNXT_LINK_LINK)
link_info->link_speed = le16_to_cpu(resp->link_speed);
else
link_info->link_speed = 0;
link_info->force_link_speed = le16_to_cpu(resp->force_link_speed);
link_info->force_pam4_link_speed =
le16_to_cpu(resp->force_pam4_link_speed);
link_info->support_speeds = le16_to_cpu(resp->support_speeds);
link_info->support_pam4_speeds = le16_to_cpu(resp->support_pam4_speeds);
link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask);
link_info->auto_pam4_link_speeds =
le16_to_cpu(resp->auto_pam4_link_speed_mask);
link_info->lp_auto_link_speeds =
le16_to_cpu(resp->link_partner_adv_speeds);
link_info->lp_auto_pam4_link_speeds =
resp->link_partner_pam4_adv_speeds;
link_info->preemphasis = le32_to_cpu(resp->preemphasis);
link_info->phy_ver[0] = resp->phy_maj;
link_info->phy_ver[1] = resp->phy_min;
link_info->phy_ver[2] = resp->phy_bld;
link_info->media_type = resp->media_type;
link_info->phy_type = resp->phy_type;
link_info->transceiver = resp->xcvr_pkg_type;
link_info->phy_addr = resp->eee_config_phy_addr &
PORT_PHY_QCFG_RESP_PHY_ADDR_MASK;
link_info->module_status = resp->module_status;
if (bp->phy_flags & BNXT_PHY_FL_EEE_CAP) {
struct ethtool_eee *eee = &bp->eee;
u16 fw_speeds;
eee->eee_active = 0;
if (resp->eee_config_phy_addr &
PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ACTIVE) {
eee->eee_active = 1;
fw_speeds = le16_to_cpu(
resp->link_partner_adv_eee_link_speed_mask);
eee->lp_advertised =
_bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
}
/* Pull initial EEE config */
if (!chng_link_state) {
if (resp->eee_config_phy_addr &
PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ENABLED)
eee->eee_enabled = 1;
fw_speeds = le16_to_cpu(resp->adv_eee_link_speed_mask);
eee->advertised =
_bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0);
if (resp->eee_config_phy_addr &
PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_TX_LPI) {
__le32 tmr;
eee->tx_lpi_enabled = 1;
tmr = resp->xcvr_identifier_type_tx_lpi_timer;
eee->tx_lpi_timer = le32_to_cpu(tmr) &
PORT_PHY_QCFG_RESP_TX_LPI_TIMER_MASK;
}
}
}
link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED;
if (bp->hwrm_spec_code >= 0x10504) {
link_info->fec_cfg = le16_to_cpu(resp->fec_cfg);
link_info->active_fec_sig_mode = resp->active_fec_signal_mode;
}
/* TODO: need to add more logic to report VF link */
if (chng_link_state) {
if (link_info->phy_link_status == BNXT_LINK_LINK)
link_info->link_state = BNXT_LINK_STATE_UP;
else
link_info->link_state = BNXT_LINK_STATE_DOWN;
if (link_state != link_info->link_state)
bnxt_report_link(bp);
} else {
/* always link down if not require to update link state */
link_info->link_state = BNXT_LINK_STATE_DOWN;
}
hwrm_req_drop(bp, req);
if (!BNXT_PHY_CFG_ABLE(bp))
return 0;
/* Check if any advertised speeds are no longer supported. The caller
* holds the link_lock mutex, so we can modify link_info settings.
*/
if (bnxt_support_dropped(link_info->advertising,
link_info->support_auto_speeds)) {
link_info->advertising = link_info->support_auto_speeds;
support_changed = true;
}
if (bnxt_support_dropped(link_info->advertising_pam4,
link_info->support_pam4_auto_speeds)) {
link_info->advertising_pam4 = link_info->support_pam4_auto_speeds;
support_changed = true;
}
if (support_changed && (link_info->autoneg & BNXT_AUTONEG_SPEED))
bnxt_hwrm_set_link_setting(bp, true, false);
return 0;
}
static void bnxt_get_port_module_status(struct bnxt *bp)
{
struct bnxt_link_info *link_info = &bp->link_info;
struct hwrm_port_phy_qcfg_output *resp = &link_info->phy_qcfg_resp;
u8 module_status;
if (bnxt_update_link(bp, true))
return;
module_status = link_info->module_status;
switch (module_status) {
case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX:
case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN:
case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG:
netdev_warn(bp->dev, "Unqualified SFP+ module detected on port %d\n",
bp->pf.port_id);
if (bp->hwrm_spec_code >= 0x10201) {
netdev_warn(bp->dev, "Module part number %s\n",
resp->phy_vendor_partnumber);
}
if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX)
netdev_warn(bp->dev, "TX is disabled\n");
if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN)
netdev_warn(bp->dev, "SFP+ module is shutdown\n");
}
}
static void
bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req)
{
if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) {
if (bp->hwrm_spec_code >= 0x10201)
req->auto_pause =
PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE;
if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX;
if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_TX;
req->enables |=
cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE);
} else {
if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX)
req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX;
if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX)
req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX;
req->enables |=
cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE);
if (bp->hwrm_spec_code >= 0x10201) {
req->auto_pause = req->force_pause;
req->enables |= cpu_to_le32(
PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE);
}
}
}
static void bnxt_hwrm_set_link_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req)
{
if (bp->link_info.autoneg & BNXT_AUTONEG_SPEED) {
req->auto_mode |= PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK;
if (bp->link_info.advertising) {
req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK);
req->auto_link_speed_mask = cpu_to_le16(bp->link_info.advertising);
}
if (bp->link_info.advertising_pam4) {
req->enables |=
cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAM4_LINK_SPEED_MASK);
req->auto_link_pam4_speed_mask =
cpu_to_le16(bp->link_info.advertising_pam4);
}
req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE);
req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG);
} else {
req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE);
if (bp->link_info.req_signal_mode == BNXT_SIG_MODE_PAM4) {
req->force_pam4_link_speed = cpu_to_le16(bp->link_info.req_link_speed);
req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED);
} else {
req->force_link_speed = cpu_to_le16(bp->link_info.req_link_speed);
}
}
/* tell chimp that the setting takes effect immediately */
req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY);
}
int bnxt_hwrm_set_pause(struct bnxt *bp)
{
struct hwrm_port_phy_cfg_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG);
if (rc)
return rc;
bnxt_hwrm_set_pause_common(bp, req);
if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) ||
bp->link_info.force_link_chng)
bnxt_hwrm_set_link_common(bp, req);
rc = hwrm_req_send(bp, req);
if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) {
/* since changing of pause setting doesn't trigger any link
* change event, the driver needs to update the current pause
* result upon successfully return of the phy_cfg command
*/
bp->link_info.pause =
bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl;
bp->link_info.auto_pause_setting = 0;
if (!bp->link_info.force_link_chng)
bnxt_report_link(bp);
}
bp->link_info.force_link_chng = false;
return rc;
}
static void bnxt_hwrm_set_eee(struct bnxt *bp,
struct hwrm_port_phy_cfg_input *req)
{
struct ethtool_eee *eee = &bp->eee;
if (eee->eee_enabled) {
u16 eee_speeds;
u32 flags = PORT_PHY_CFG_REQ_FLAGS_EEE_ENABLE;
if (eee->tx_lpi_enabled)
flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_ENABLE;
else
flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_DISABLE;
req->flags |= cpu_to_le32(flags);
eee_speeds = bnxt_get_fw_auto_link_speeds(eee->advertised);
req->eee_link_speed_mask = cpu_to_le16(eee_speeds);
req->tx_lpi_timer = cpu_to_le32(eee->tx_lpi_timer);
} else {
req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_EEE_DISABLE);
}
}
int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause, bool set_eee)
{
struct hwrm_port_phy_cfg_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG);
if (rc)
return rc;
if (set_pause)
bnxt_hwrm_set_pause_common(bp, req);
bnxt_hwrm_set_link_common(bp, req);
if (set_eee)
bnxt_hwrm_set_eee(bp, req);
return hwrm_req_send(bp, req);
}
static int bnxt_hwrm_shutdown_link(struct bnxt *bp)
{
struct hwrm_port_phy_cfg_input *req;
int rc;
if (!BNXT_SINGLE_PF(bp))
return 0;
if (pci_num_vf(bp->pdev) &&
!(bp->phy_flags & BNXT_PHY_FL_FW_MANAGED_LKDN))
return 0;
rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_CFG);
if (rc)
return rc;
req->flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN);
rc = hwrm_req_send(bp, req);
if (!rc) {
mutex_lock(&bp->link_lock);
/* Device is not obliged link down in certain scenarios, even
* when forced. Setting the state unknown is consistent with
* driver startup and will force link state to be reported
* during subsequent open based on PORT_PHY_QCFG.
*/
bp->link_info.link_state = BNXT_LINK_STATE_UNKNOWN;
mutex_unlock(&bp->link_lock);
}
return rc;
}
static int bnxt_fw_reset_via_optee(struct bnxt *bp)
{
#ifdef CONFIG_TEE_BNXT_FW
int rc = tee_bnxt_fw_load();
if (rc)
netdev_err(bp->dev, "Failed FW reset via OP-TEE, rc=%d\n", rc);
return rc;
#else
netdev_err(bp->dev, "OP-TEE not supported\n");
return -ENODEV;
#endif
}
static int bnxt_try_recover_fw(struct bnxt *bp)
{
if (bp->fw_health && bp->fw_health->status_reliable) {
int retry = 0, rc;
u32 sts;
do {
sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
rc = bnxt_hwrm_poll(bp);
if (!BNXT_FW_IS_BOOTING(sts) &&
!BNXT_FW_IS_RECOVERING(sts))
break;
retry++;
} while (rc == -EBUSY && retry < BNXT_FW_RETRY);
if (!BNXT_FW_IS_HEALTHY(sts)) {
netdev_err(bp->dev,
"Firmware not responding, status: 0x%x\n",
sts);
rc = -ENODEV;
}
if (sts & FW_STATUS_REG_CRASHED_NO_MASTER) {
netdev_warn(bp->dev, "Firmware recover via OP-TEE requested\n");
return bnxt_fw_reset_via_optee(bp);
}
return rc;
}
return -ENODEV;
}
int bnxt_cancel_reservations(struct bnxt *bp, bool fw_reset)
{
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
int rc;
if (!BNXT_NEW_RM(bp))
return 0; /* no resource reservations required */
rc = bnxt_hwrm_func_resc_qcaps(bp, true);
if (rc)
netdev_err(bp->dev, "resc_qcaps failed\n");
hw_resc->resv_cp_rings = 0;
hw_resc->resv_stat_ctxs = 0;
hw_resc->resv_irqs = 0;
hw_resc->resv_tx_rings = 0;
hw_resc->resv_rx_rings = 0;
hw_resc->resv_hw_ring_grps = 0;
hw_resc->resv_vnics = 0;
if (!fw_reset) {
bp->tx_nr_rings = 0;
bp->rx_nr_rings = 0;
}
return rc;
}
static int bnxt_hwrm_if_change(struct bnxt *bp, bool up)
{
struct hwrm_func_drv_if_change_output *resp;
struct hwrm_func_drv_if_change_input *req;
bool fw_reset = !bp->irq_tbl;
bool resc_reinit = false;
int rc, retry = 0;
u32 flags = 0;
if (!(bp->fw_cap & BNXT_FW_CAP_IF_CHANGE))
return 0;
rc = hwrm_req_init(bp, req, HWRM_FUNC_DRV_IF_CHANGE);
if (rc)
return rc;
if (up)
req->flags = cpu_to_le32(FUNC_DRV_IF_CHANGE_REQ_FLAGS_UP);
resp = hwrm_req_hold(bp, req);
hwrm_req_flags(bp, req, BNXT_HWRM_FULL_WAIT);
while (retry < BNXT_FW_IF_RETRY) {
rc = hwrm_req_send(bp, req);
if (rc != -EAGAIN)
break;
msleep(50);
retry++;
}
if (rc == -EAGAIN) {
hwrm_req_drop(bp, req);
return rc;
} else if (!rc) {
flags = le32_to_cpu(resp->flags);
} else if (up) {
rc = bnxt_try_recover_fw(bp);
fw_reset = true;
}
hwrm_req_drop(bp, req);
if (rc)
return rc;
if (!up) {
bnxt_inv_fw_health_reg(bp);
return 0;
}
if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_RESC_CHANGE)
resc_reinit = true;
if (flags & FUNC_DRV_IF_CHANGE_RESP_FLAGS_HOT_FW_RESET_DONE ||
test_bit(BNXT_STATE_FW_RESET_DET, &bp->state))
fw_reset = true;
else
bnxt_remap_fw_health_regs(bp);
if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state) && !fw_reset) {
netdev_err(bp->dev, "RESET_DONE not set during FW reset.\n");
set_bit(BNXT_STATE_ABORT_ERR, &bp->state);
return -ENODEV;
}
if (resc_reinit || fw_reset) {
if (fw_reset) {
set_bit(BNXT_STATE_FW_RESET_DET, &bp->state);
if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
bnxt_ulp_stop(bp);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
bnxt_dcb_free(bp);
rc = bnxt_fw_init_one(bp);
if (rc) {
clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state);
set_bit(BNXT_STATE_ABORT_ERR, &bp->state);
return rc;
}
bnxt_clear_int_mode(bp);
rc = bnxt_init_int_mode(bp);
if (rc) {
clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state);
netdev_err(bp->dev, "init int mode failed\n");
return rc;
}
}
rc = bnxt_cancel_reservations(bp, fw_reset);
}
return rc;
}
static int bnxt_hwrm_port_led_qcaps(struct bnxt *bp)
{
struct hwrm_port_led_qcaps_output *resp;
struct hwrm_port_led_qcaps_input *req;
struct bnxt_pf_info *pf = &bp->pf;
int rc;
bp->num_leds = 0;
if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601)
return 0;
rc = hwrm_req_init(bp, req, HWRM_PORT_LED_QCAPS);
if (rc)
return rc;
req->port_id = cpu_to_le16(pf->port_id);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (rc) {
hwrm_req_drop(bp, req);
return rc;
}
if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) {
int i;
bp->num_leds = resp->num_leds;
memcpy(bp->leds, &resp->led0_id, sizeof(bp->leds[0]) *
bp->num_leds);
for (i = 0; i < bp->num_leds; i++) {
struct bnxt_led_info *led = &bp->leds[i];
__le16 caps = led->led_state_caps;
if (!led->led_group_id ||
!BNXT_LED_ALT_BLINK_CAP(caps)) {
bp->num_leds = 0;
break;
}
}
}
hwrm_req_drop(bp, req);
return 0;
}
int bnxt_hwrm_alloc_wol_fltr(struct bnxt *bp)
{
struct hwrm_wol_filter_alloc_output *resp;
struct hwrm_wol_filter_alloc_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_ALLOC);
if (rc)
return rc;
req->port_id = cpu_to_le16(bp->pf.port_id);
req->wol_type = WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT;
req->enables = cpu_to_le32(WOL_FILTER_ALLOC_REQ_ENABLES_MAC_ADDRESS);
memcpy(req->mac_address, bp->dev->dev_addr, ETH_ALEN);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (!rc)
bp->wol_filter_id = resp->wol_filter_id;
hwrm_req_drop(bp, req);
return rc;
}
int bnxt_hwrm_free_wol_fltr(struct bnxt *bp)
{
struct hwrm_wol_filter_free_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_FREE);
if (rc)
return rc;
req->port_id = cpu_to_le16(bp->pf.port_id);
req->enables = cpu_to_le32(WOL_FILTER_FREE_REQ_ENABLES_WOL_FILTER_ID);
req->wol_filter_id = bp->wol_filter_id;
return hwrm_req_send(bp, req);
}
static u16 bnxt_hwrm_get_wol_fltrs(struct bnxt *bp, u16 handle)
{
struct hwrm_wol_filter_qcfg_output *resp;
struct hwrm_wol_filter_qcfg_input *req;
u16 next_handle = 0;
int rc;
rc = hwrm_req_init(bp, req, HWRM_WOL_FILTER_QCFG);
if (rc)
return rc;
req->port_id = cpu_to_le16(bp->pf.port_id);
req->handle = cpu_to_le16(handle);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (!rc) {
next_handle = le16_to_cpu(resp->next_handle);
if (next_handle != 0) {
if (resp->wol_type ==
WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT) {
bp->wol = 1;
bp->wol_filter_id = resp->wol_filter_id;
}
}
}
hwrm_req_drop(bp, req);
return next_handle;
}
static void bnxt_get_wol_settings(struct bnxt *bp)
{
u16 handle = 0;
bp->wol = 0;
if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_WOL_CAP))
return;
do {
handle = bnxt_hwrm_get_wol_fltrs(bp, handle);
} while (handle && handle != 0xffff);
}
#ifdef CONFIG_BNXT_HWMON
static ssize_t bnxt_show_temp(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct hwrm_temp_monitor_query_output *resp;
struct hwrm_temp_monitor_query_input *req;
struct bnxt *bp = dev_get_drvdata(dev);
u32 len = 0;
int rc;
rc = hwrm_req_init(bp, req, HWRM_TEMP_MONITOR_QUERY);
if (rc)
return rc;
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (!rc)
len = sprintf(buf, "%u\n", resp->temp * 1000); /* display millidegree */
hwrm_req_drop(bp, req);
if (rc)
return rc;
return len;
}
static SENSOR_DEVICE_ATTR(temp1_input, 0444, bnxt_show_temp, NULL, 0);
static struct attribute *bnxt_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
NULL
};
ATTRIBUTE_GROUPS(bnxt);
static void bnxt_hwmon_close(struct bnxt *bp)
{
if (bp->hwmon_dev) {
hwmon_device_unregister(bp->hwmon_dev);
bp->hwmon_dev = NULL;
}
}
static void bnxt_hwmon_open(struct bnxt *bp)
{
struct hwrm_temp_monitor_query_input *req;
struct pci_dev *pdev = bp->pdev;
int rc;
rc = hwrm_req_init(bp, req, HWRM_TEMP_MONITOR_QUERY);
if (!rc)
rc = hwrm_req_send_silent(bp, req);
if (rc == -EACCES || rc == -EOPNOTSUPP) {
bnxt_hwmon_close(bp);
return;
}
if (bp->hwmon_dev)
return;
bp->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev,
DRV_MODULE_NAME, bp,
bnxt_groups);
if (IS_ERR(bp->hwmon_dev)) {
bp->hwmon_dev = NULL;
dev_warn(&pdev->dev, "Cannot register hwmon device\n");
}
}
#else
static void bnxt_hwmon_close(struct bnxt *bp)
{
}
static void bnxt_hwmon_open(struct bnxt *bp)
{
}
#endif
static bool bnxt_eee_config_ok(struct bnxt *bp)
{
struct ethtool_eee *eee = &bp->eee;
struct bnxt_link_info *link_info = &bp->link_info;
if (!(bp->phy_flags & BNXT_PHY_FL_EEE_CAP))
return true;
if (eee->eee_enabled) {
u32 advertising =
_bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0);
if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
eee->eee_enabled = 0;
return false;
}
if (eee->advertised & ~advertising) {
eee->advertised = advertising & eee->supported;
return false;
}
}
return true;
}
static int bnxt_update_phy_setting(struct bnxt *bp)
{
int rc;
bool update_link = false;
bool update_pause = false;
bool update_eee = false;
struct bnxt_link_info *link_info = &bp->link_info;
rc = bnxt_update_link(bp, true);
if (rc) {
netdev_err(bp->dev, "failed to update link (rc: %x)\n",
rc);
return rc;
}
if (!BNXT_SINGLE_PF(bp))
return 0;
if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
(link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) !=
link_info->req_flow_ctrl)
update_pause = true;
if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) &&
link_info->force_pause_setting != link_info->req_flow_ctrl)
update_pause = true;
if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) {
if (BNXT_AUTO_MODE(link_info->auto_mode))
update_link = true;
if (link_info->req_signal_mode == BNXT_SIG_MODE_NRZ &&
link_info->req_link_speed != link_info->force_link_speed)
update_link = true;
else if (link_info->req_signal_mode == BNXT_SIG_MODE_PAM4 &&
link_info->req_link_speed != link_info->force_pam4_link_speed)
update_link = true;
if (link_info->req_duplex != link_info->duplex_setting)
update_link = true;
} else {
if (link_info->auto_mode == BNXT_LINK_AUTO_NONE)
update_link = true;
if (link_info->advertising != link_info->auto_link_speeds ||
link_info->advertising_pam4 != link_info->auto_pam4_link_speeds)
update_link = true;
}
/* The last close may have shutdown the link, so need to call
* PHY_CFG to bring it back up.
*/
if (!BNXT_LINK_IS_UP(bp))
update_link = true;
if (!bnxt_eee_config_ok(bp))
update_eee = true;
if (update_link)
rc = bnxt_hwrm_set_link_setting(bp, update_pause, update_eee);
else if (update_pause)
rc = bnxt_hwrm_set_pause(bp);
if (rc) {
netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n",
rc);
return rc;
}
return rc;
}
/* Common routine to pre-map certain register block to different GRC window.
* A PF has 16 4K windows and a VF has 4 4K windows. However, only 15 windows
* in PF and 3 windows in VF that can be customized to map in different
* register blocks.
*/
static void bnxt_preset_reg_win(struct bnxt *bp)
{
if (BNXT_PF(bp)) {
/* CAG registers map to GRC window #4 */
writel(BNXT_CAG_REG_BASE,
bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 12);
}
}
static int bnxt_init_dflt_ring_mode(struct bnxt *bp);
static int bnxt_reinit_after_abort(struct bnxt *bp)
{
int rc;
if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
return -EBUSY;
if (bp->dev->reg_state == NETREG_UNREGISTERED)
return -ENODEV;
rc = bnxt_fw_init_one(bp);
if (!rc) {
bnxt_clear_int_mode(bp);
rc = bnxt_init_int_mode(bp);
if (!rc) {
clear_bit(BNXT_STATE_ABORT_ERR, &bp->state);
set_bit(BNXT_STATE_FW_RESET_DET, &bp->state);
}
}
return rc;
}
static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
{
int rc = 0;
bnxt_preset_reg_win(bp);
netif_carrier_off(bp->dev);
if (irq_re_init) {
/* Reserve rings now if none were reserved at driver probe. */
rc = bnxt_init_dflt_ring_mode(bp);
if (rc) {
netdev_err(bp->dev, "Failed to reserve default rings at open\n");
return rc;
}
}
rc = bnxt_reserve_rings(bp, irq_re_init);
if (rc)
return rc;
if ((bp->flags & BNXT_FLAG_RFS) &&
!(bp->flags & BNXT_FLAG_USING_MSIX)) {
/* disable RFS if falling back to INTA */
bp->dev->hw_features &= ~NETIF_F_NTUPLE;
bp->flags &= ~BNXT_FLAG_RFS;
}
rc = bnxt_alloc_mem(bp, irq_re_init);
if (rc) {
netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc);
goto open_err_free_mem;
}
if (irq_re_init) {
bnxt_init_napi(bp);
rc = bnxt_request_irq(bp);
if (rc) {
netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc);
goto open_err_irq;
}
}
rc = bnxt_init_nic(bp, irq_re_init);
if (rc) {
netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
goto open_err_irq;
}
bnxt_enable_napi(bp);
bnxt_debug_dev_init(bp);
if (link_re_init) {
mutex_lock(&bp->link_lock);
rc = bnxt_update_phy_setting(bp);
mutex_unlock(&bp->link_lock);
if (rc) {
netdev_warn(bp->dev, "failed to update phy settings\n");
if (BNXT_SINGLE_PF(bp)) {
bp->link_info.phy_retry = true;
bp->link_info.phy_retry_expires =
jiffies + 5 * HZ;
}
}
}
if (irq_re_init)
udp_tunnel_nic_reset_ntf(bp->dev);
if (bp->tx_nr_rings_xdp < num_possible_cpus()) {
if (!static_key_enabled(&bnxt_xdp_locking_key))
static_branch_enable(&bnxt_xdp_locking_key);
} else if (static_key_enabled(&bnxt_xdp_locking_key)) {
static_branch_disable(&bnxt_xdp_locking_key);
}
set_bit(BNXT_STATE_OPEN, &bp->state);
bnxt_enable_int(bp);
/* Enable TX queues */
bnxt_tx_enable(bp);
mod_timer(&bp->timer, jiffies + bp->current_interval);
/* Poll link status and check for SFP+ module status */
mutex_lock(&bp->link_lock);
bnxt_get_port_module_status(bp);
mutex_unlock(&bp->link_lock);
/* VF-reps may need to be re-opened after the PF is re-opened */
if (BNXT_PF(bp))
bnxt_vf_reps_open(bp);
bnxt_ptp_init_rtc(bp, true);
bnxt_ptp_cfg_tstamp_filters(bp);
return 0;
open_err_irq:
bnxt_del_napi(bp);
open_err_free_mem:
bnxt_free_skbs(bp);
bnxt_free_irq(bp);
bnxt_free_mem(bp, true);
return rc;
}
/* rtnl_lock held */
int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
{
int rc = 0;
if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state))
rc = -EIO;
if (!rc)
rc = __bnxt_open_nic(bp, irq_re_init, link_re_init);
if (rc) {
netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc);
dev_close(bp->dev);
}
return rc;
}
/* rtnl_lock held, open the NIC half way by allocating all resources, but
* NAPI, IRQ, and TX are not enabled. This is mainly used for offline
* self tests.
*/
int bnxt_half_open_nic(struct bnxt *bp)
{
int rc = 0;
if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
netdev_err(bp->dev, "A previous firmware reset has not completed, aborting half open\n");
rc = -ENODEV;
goto half_open_err;
}
rc = bnxt_alloc_mem(bp, true);
if (rc) {
netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc);
goto half_open_err;
}
set_bit(BNXT_STATE_HALF_OPEN, &bp->state);
rc = bnxt_init_nic(bp, true);
if (rc) {
clear_bit(BNXT_STATE_HALF_OPEN, &bp->state);
netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
goto half_open_err;
}
return 0;
half_open_err:
bnxt_free_skbs(bp);
bnxt_free_mem(bp, true);
dev_close(bp->dev);
return rc;
}
/* rtnl_lock held, this call can only be made after a previous successful
* call to bnxt_half_open_nic().
*/
void bnxt_half_close_nic(struct bnxt *bp)
{
bnxt_hwrm_resource_free(bp, false, true);
bnxt_free_skbs(bp);
bnxt_free_mem(bp, true);
clear_bit(BNXT_STATE_HALF_OPEN, &bp->state);
}
void bnxt_reenable_sriov(struct bnxt *bp)
{
if (BNXT_PF(bp)) {
struct bnxt_pf_info *pf = &bp->pf;
int n = pf->active_vfs;
if (n)
bnxt_cfg_hw_sriov(bp, &n, true);
}
}
static int bnxt_open(struct net_device *dev)
{
struct bnxt *bp = netdev_priv(dev);
int rc;
if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
rc = bnxt_reinit_after_abort(bp);
if (rc) {
if (rc == -EBUSY)
netdev_err(bp->dev, "A previous firmware reset has not completed, aborting\n");
else
netdev_err(bp->dev, "Failed to reinitialize after aborted firmware reset\n");
return -ENODEV;
}
}
rc = bnxt_hwrm_if_change(bp, true);
if (rc)
return rc;
rc = __bnxt_open_nic(bp, true, true);
if (rc) {
bnxt_hwrm_if_change(bp, false);
} else {
if (test_and_clear_bit(BNXT_STATE_FW_RESET_DET, &bp->state)) {
if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
bnxt_ulp_start(bp, 0);
bnxt_reenable_sriov(bp);
}
}
bnxt_hwmon_open(bp);
}
return rc;
}
static bool bnxt_drv_busy(struct bnxt *bp)
{
return (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state) ||
test_bit(BNXT_STATE_READ_STATS, &bp->state));
}
static void bnxt_get_ring_stats(struct bnxt *bp,
struct rtnl_link_stats64 *stats);
static void __bnxt_close_nic(struct bnxt *bp, bool irq_re_init,
bool link_re_init)
{
/* Close the VF-reps before closing PF */
if (BNXT_PF(bp))
bnxt_vf_reps_close(bp);
/* Change device state to avoid TX queue wake up's */
bnxt_tx_disable(bp);
clear_bit(BNXT_STATE_OPEN, &bp->state);
smp_mb__after_atomic();
while (bnxt_drv_busy(bp))
msleep(20);
/* Flush rings and disable interrupts */
bnxt_shutdown_nic(bp, irq_re_init);
/* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */
bnxt_debug_dev_exit(bp);
bnxt_disable_napi(bp);
del_timer_sync(&bp->timer);
bnxt_free_skbs(bp);
/* Save ring stats before shutdown */
if (bp->bnapi && irq_re_init)
bnxt_get_ring_stats(bp, &bp->net_stats_prev);
if (irq_re_init) {
bnxt_free_irq(bp);
bnxt_del_napi(bp);
}
bnxt_free_mem(bp, irq_re_init);
}
int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
{
int rc = 0;
if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
/* If we get here, it means firmware reset is in progress
* while we are trying to close. We can safely proceed with
* the close because we are holding rtnl_lock(). Some firmware
* messages may fail as we proceed to close. We set the
* ABORT_ERR flag here so that the FW reset thread will later
* abort when it gets the rtnl_lock() and sees the flag.
*/
netdev_warn(bp->dev, "FW reset in progress during close, FW reset will be aborted\n");
set_bit(BNXT_STATE_ABORT_ERR, &bp->state);
}
#ifdef CONFIG_BNXT_SRIOV
if (bp->sriov_cfg) {
rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait,
!bp->sriov_cfg,
BNXT_SRIOV_CFG_WAIT_TMO);
if (rc)
netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete!\n");
}
#endif
__bnxt_close_nic(bp, irq_re_init, link_re_init);
return rc;
}
static int bnxt_close(struct net_device *dev)
{
struct bnxt *bp = netdev_priv(dev);
bnxt_hwmon_close(bp);
bnxt_close_nic(bp, true, true);
bnxt_hwrm_shutdown_link(bp);
bnxt_hwrm_if_change(bp, false);
return 0;
}
static int bnxt_hwrm_port_phy_read(struct bnxt *bp, u16 phy_addr, u16 reg,
u16 *val)
{
struct hwrm_port_phy_mdio_read_output *resp;
struct hwrm_port_phy_mdio_read_input *req;
int rc;
if (bp->hwrm_spec_code < 0x10a00)
return -EOPNOTSUPP;
rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_READ);
if (rc)
return rc;
req->port_id = cpu_to_le16(bp->pf.port_id);
req->phy_addr = phy_addr;
req->reg_addr = cpu_to_le16(reg & 0x1f);
if (mdio_phy_id_is_c45(phy_addr)) {
req->cl45_mdio = 1;
req->phy_addr = mdio_phy_id_prtad(phy_addr);
req->dev_addr = mdio_phy_id_devad(phy_addr);
req->reg_addr = cpu_to_le16(reg);
}
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (!rc)
*val = le16_to_cpu(resp->reg_data);
hwrm_req_drop(bp, req);
return rc;
}
static int bnxt_hwrm_port_phy_write(struct bnxt *bp, u16 phy_addr, u16 reg,
u16 val)
{
struct hwrm_port_phy_mdio_write_input *req;
int rc;
if (bp->hwrm_spec_code < 0x10a00)
return -EOPNOTSUPP;
rc = hwrm_req_init(bp, req, HWRM_PORT_PHY_MDIO_WRITE);
if (rc)
return rc;
req->port_id = cpu_to_le16(bp->pf.port_id);
req->phy_addr = phy_addr;
req->reg_addr = cpu_to_le16(reg & 0x1f);
if (mdio_phy_id_is_c45(phy_addr)) {
req->cl45_mdio = 1;
req->phy_addr = mdio_phy_id_prtad(phy_addr);
req->dev_addr = mdio_phy_id_devad(phy_addr);
req->reg_addr = cpu_to_le16(reg);
}
req->reg_data = cpu_to_le16(val);
return hwrm_req_send(bp, req);
}
/* rtnl_lock held */
static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct mii_ioctl_data *mdio = if_mii(ifr);
struct bnxt *bp = netdev_priv(dev);
int rc;
switch (cmd) {
case SIOCGMIIPHY:
mdio->phy_id = bp->link_info.phy_addr;
fallthrough;
case SIOCGMIIREG: {
u16 mii_regval = 0;
if (!netif_running(dev))
return -EAGAIN;
rc = bnxt_hwrm_port_phy_read(bp, mdio->phy_id, mdio->reg_num,
&mii_regval);
mdio->val_out = mii_regval;
return rc;
}
case SIOCSMIIREG:
if (!netif_running(dev))
return -EAGAIN;
return bnxt_hwrm_port_phy_write(bp, mdio->phy_id, mdio->reg_num,
mdio->val_in);
case SIOCSHWTSTAMP:
return bnxt_hwtstamp_set(dev, ifr);
case SIOCGHWTSTAMP:
return bnxt_hwtstamp_get(dev, ifr);
default:
/* do nothing */
break;
}
return -EOPNOTSUPP;
}
static void bnxt_get_ring_stats(struct bnxt *bp,
struct rtnl_link_stats64 *stats)
{
int i;
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;
u64 *sw = cpr->stats.sw_stats;
stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_ucast_pkts);
stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts);
stats->rx_packets += BNXT_GET_RING_STATS64(sw, rx_bcast_pkts);
stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_ucast_pkts);
stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_mcast_pkts);
stats->tx_packets += BNXT_GET_RING_STATS64(sw, tx_bcast_pkts);
stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_ucast_bytes);
stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_mcast_bytes);
stats->rx_bytes += BNXT_GET_RING_STATS64(sw, rx_bcast_bytes);
stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_ucast_bytes);
stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_mcast_bytes);
stats->tx_bytes += BNXT_GET_RING_STATS64(sw, tx_bcast_bytes);
stats->rx_missed_errors +=
BNXT_GET_RING_STATS64(sw, rx_discard_pkts);
stats->multicast += BNXT_GET_RING_STATS64(sw, rx_mcast_pkts);
stats->tx_dropped += BNXT_GET_RING_STATS64(sw, tx_error_pkts);
stats->rx_dropped +=
cpr->sw_stats.rx.rx_netpoll_discards +
cpr->sw_stats.rx.rx_oom_discards;
}
}
static void bnxt_add_prev_stats(struct bnxt *bp,
struct rtnl_link_stats64 *stats)
{
struct rtnl_link_stats64 *prev_stats = &bp->net_stats_prev;
stats->rx_packets += prev_stats->rx_packets;
stats->tx_packets += prev_stats->tx_packets;
stats->rx_bytes += prev_stats->rx_bytes;
stats->tx_bytes += prev_stats->tx_bytes;
stats->rx_missed_errors += prev_stats->rx_missed_errors;
stats->multicast += prev_stats->multicast;
stats->rx_dropped += prev_stats->rx_dropped;
stats->tx_dropped += prev_stats->tx_dropped;
}
static void
bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
struct bnxt *bp = netdev_priv(dev);
set_bit(BNXT_STATE_READ_STATS, &bp->state);
/* Make sure bnxt_close_nic() sees that we are reading stats before
* we check the BNXT_STATE_OPEN flag.
*/
smp_mb__after_atomic();
if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
clear_bit(BNXT_STATE_READ_STATS, &bp->state);
*stats = bp->net_stats_prev;
return;
}
bnxt_get_ring_stats(bp, stats);
bnxt_add_prev_stats(bp, stats);
if (bp->flags & BNXT_FLAG_PORT_STATS) {
u64 *rx = bp->port_stats.sw_stats;
u64 *tx = bp->port_stats.sw_stats +
BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
stats->rx_crc_errors =
BNXT_GET_RX_PORT_STATS64(rx, rx_fcs_err_frames);
stats->rx_frame_errors =
BNXT_GET_RX_PORT_STATS64(rx, rx_align_err_frames);
stats->rx_length_errors =
BNXT_GET_RX_PORT_STATS64(rx, rx_undrsz_frames) +
BNXT_GET_RX_PORT_STATS64(rx, rx_ovrsz_frames) +
BNXT_GET_RX_PORT_STATS64(rx, rx_runt_frames);
stats->rx_errors =
BNXT_GET_RX_PORT_STATS64(rx, rx_false_carrier_frames) +
BNXT_GET_RX_PORT_STATS64(rx, rx_jbr_frames);
stats->collisions =
BNXT_GET_TX_PORT_STATS64(tx, tx_total_collisions);
stats->tx_fifo_errors =
BNXT_GET_TX_PORT_STATS64(tx, tx_fifo_underruns);
stats->tx_errors = BNXT_GET_TX_PORT_STATS64(tx, tx_err);
}
clear_bit(BNXT_STATE_READ_STATS, &bp->state);
}
static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask)
{
struct net_device *dev = bp->dev;
struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
struct netdev_hw_addr *ha;
u8 *haddr;
int mc_count = 0;
bool update = false;
int off = 0;
netdev_for_each_mc_addr(ha, dev) {
if (mc_count >= BNXT_MAX_MC_ADDRS) {
*rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
vnic->mc_list_count = 0;
return false;
}
haddr = ha->addr;
if (!ether_addr_equal(haddr, vnic->mc_list + off)) {
memcpy(vnic->mc_list + off, haddr, ETH_ALEN);
update = true;
}
off += ETH_ALEN;
mc_count++;
}
if (mc_count)
*rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST;
if (mc_count != vnic->mc_list_count) {
vnic->mc_list_count = mc_count;
update = true;
}
return update;
}
static bool bnxt_uc_list_updated(struct bnxt *bp)
{
struct net_device *dev = bp->dev;
struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
struct netdev_hw_addr *ha;
int off = 0;
if (netdev_uc_count(dev) != (vnic->uc_filter_count - 1))
return true;
netdev_for_each_uc_addr(ha, dev) {
if (!ether_addr_equal(ha->addr, vnic->uc_list + off))
return true;
off += ETH_ALEN;
}
return false;
}
static void bnxt_set_rx_mode(struct net_device *dev)
{
struct bnxt *bp = netdev_priv(dev);
struct bnxt_vnic_info *vnic;
bool mc_update = false;
bool uc_update;
u32 mask;
if (!test_bit(BNXT_STATE_OPEN, &bp->state))
return;
vnic = &bp->vnic_info[0];
mask = vnic->rx_mask;
mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS |
CFA_L2_SET_RX_MASK_REQ_MASK_MCAST |
CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST |
CFA_L2_SET_RX_MASK_REQ_MASK_BCAST);
if (dev->flags & IFF_PROMISC)
mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
uc_update = bnxt_uc_list_updated(bp);
if (dev->flags & IFF_BROADCAST)
mask |= CFA_L2_SET_RX_MASK_REQ_MASK_BCAST;
if (dev->flags & IFF_ALLMULTI) {
mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
vnic->mc_list_count = 0;
} else if (dev->flags & IFF_MULTICAST) {
mc_update = bnxt_mc_list_updated(bp, &mask);
}
if (mask != vnic->rx_mask || uc_update || mc_update) {
vnic->rx_mask = mask;
set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
}
static int bnxt_cfg_rx_mode(struct bnxt *bp)
{
struct net_device *dev = bp->dev;
struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
struct hwrm_cfa_l2_filter_free_input *req;
struct netdev_hw_addr *ha;
int i, off = 0, rc;
bool uc_update;
netif_addr_lock_bh(dev);
uc_update = bnxt_uc_list_updated(bp);
netif_addr_unlock_bh(dev);
if (!uc_update)
goto skip_uc;
rc = hwrm_req_init(bp, req, HWRM_CFA_L2_FILTER_FREE);
if (rc)
return rc;
hwrm_req_hold(bp, req);
for (i = 1; i < vnic->uc_filter_count; i++) {
req->l2_filter_id = vnic->fw_l2_filter_id[i];
rc = hwrm_req_send(bp, req);
}
hwrm_req_drop(bp, req);
vnic->uc_filter_count = 1;
netif_addr_lock_bh(dev);
if (netdev_uc_count(dev) > (BNXT_MAX_UC_ADDRS - 1)) {
vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
} else {
netdev_for_each_uc_addr(ha, dev) {
memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN);
off += ETH_ALEN;
vnic->uc_filter_count++;
}
}
netif_addr_unlock_bh(dev);
for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) {
rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off);
if (rc) {
if (BNXT_VF(bp) && rc == -ENODEV) {
if (!test_and_set_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state))
netdev_warn(bp->dev, "Cannot configure L2 filters while PF is unavailable, will retry\n");
else
netdev_dbg(bp->dev, "PF still unavailable while configuring L2 filters.\n");
rc = 0;
} else {
netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc);
}
vnic->uc_filter_count = i;
return rc;
}
}
if (test_and_clear_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state))
netdev_notice(bp->dev, "Retry of L2 filter configuration successful.\n");
skip_uc:
if ((vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS) &&
!bnxt_promisc_ok(bp))
vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0);
if (rc && (vnic->rx_mask & CFA_L2_SET_RX_MASK_REQ_MASK_MCAST)) {
netdev_info(bp->dev, "Failed setting MC filters rc: %d, turning on ALL_MCAST mode\n",
rc);
vnic->rx_mask &= ~CFA_L2_SET_RX_MASK_REQ_MASK_MCAST;
vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
vnic->mc_list_count = 0;
rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0);
}
if (rc)
netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %d\n",
rc);
return rc;
}
static bool bnxt_can_reserve_rings(struct bnxt *bp)
{
#ifdef CONFIG_BNXT_SRIOV
if (BNXT_NEW_RM(bp) && BNXT_VF(bp)) {
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
/* No minimum rings were provisioned by the PF. Don't
* reserve rings by default when device is down.
*/
if (hw_resc->min_tx_rings || hw_resc->resv_tx_rings)
return true;
if (!netif_running(bp->dev))
return false;
}
#endif
return true;
}
/* If the chip and firmware supports RFS */
static bool bnxt_rfs_supported(struct bnxt *bp)
{
if (bp->flags & BNXT_FLAG_CHIP_P5) {
if (bp->fw_cap & BNXT_FW_CAP_CFA_RFS_RING_TBL_IDX_V2)
return true;
return false;
}
/* 212 firmware is broken for aRFS */
if (BNXT_FW_MAJ(bp) == 212)
return false;
if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp))
return true;
if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
return true;
return false;
}
/* If runtime conditions support RFS */
static bool bnxt_rfs_capable(struct bnxt *bp)
{
#ifdef CONFIG_RFS_ACCEL
int vnics, max_vnics, max_rss_ctxs;
if (bp->flags & BNXT_FLAG_CHIP_P5)
return bnxt_rfs_supported(bp);
if (!(bp->flags & BNXT_FLAG_MSIX_CAP) || !bnxt_can_reserve_rings(bp) || !bp->rx_nr_rings)
return false;
vnics = 1 + bp->rx_nr_rings;
max_vnics = bnxt_get_max_func_vnics(bp);
max_rss_ctxs = bnxt_get_max_func_rss_ctxs(bp);
/* RSS contexts not a limiting factor */
if (bp->flags & BNXT_FLAG_NEW_RSS_CAP)
max_rss_ctxs = max_vnics;
if (vnics > max_vnics || vnics > max_rss_ctxs) {
if (bp->rx_nr_rings > 1)
netdev_warn(bp->dev,
"Not enough resources to support NTUPLE filters, enough resources for up to %d rx rings\n",
min(max_rss_ctxs - 1, max_vnics - 1));
return false;
}
if (!BNXT_NEW_RM(bp))
return true;
if (vnics == bp->hw_resc.resv_vnics)
return true;
bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, vnics);
if (vnics <= bp->hw_resc.resv_vnics)
return true;
netdev_warn(bp->dev, "Unable to reserve resources to support NTUPLE filters.\n");
bnxt_hwrm_reserve_rings(bp, 0, 0, 0, 0, 0, 1);
return false;
#else
return false;
#endif
}
static netdev_features_t bnxt_fix_features(struct net_device *dev,
netdev_features_t features)
{
struct bnxt *bp = netdev_priv(dev);
netdev_features_t vlan_features;
if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp))
features &= ~NETIF_F_NTUPLE;
if ((bp->flags & BNXT_FLAG_NO_AGG_RINGS) || bp->xdp_prog)
features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW);
if (!(features & NETIF_F_GRO))
features &= ~NETIF_F_GRO_HW;
if (features & NETIF_F_GRO_HW)
features &= ~NETIF_F_LRO;
/* Both CTAG and STAG VLAN accelaration on the RX side have to be
* turned on or off together.
*/
vlan_features = features & BNXT_HW_FEATURE_VLAN_ALL_RX;
if (vlan_features != BNXT_HW_FEATURE_VLAN_ALL_RX) {
if (dev->features & BNXT_HW_FEATURE_VLAN_ALL_RX)
features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX;
else if (vlan_features)
features |= BNXT_HW_FEATURE_VLAN_ALL_RX;
}
#ifdef CONFIG_BNXT_SRIOV
if (BNXT_VF(bp) && bp->vf.vlan)
features &= ~BNXT_HW_FEATURE_VLAN_ALL_RX;
#endif
return features;
}
static int bnxt_set_features(struct net_device *dev, netdev_features_t features)
{
struct bnxt *bp = netdev_priv(dev);
u32 flags = bp->flags;
u32 changes;
int rc = 0;
bool re_init = false;
bool update_tpa = false;
flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS;
if (features & NETIF_F_GRO_HW)
flags |= BNXT_FLAG_GRO;
else if (features & NETIF_F_LRO)
flags |= BNXT_FLAG_LRO;
if (bp->flags & BNXT_FLAG_NO_AGG_RINGS)
flags &= ~BNXT_FLAG_TPA;
if (features & BNXT_HW_FEATURE_VLAN_ALL_RX)
flags |= BNXT_FLAG_STRIP_VLAN;
if (features & NETIF_F_NTUPLE)
flags |= BNXT_FLAG_RFS;
changes = flags ^ bp->flags;
if (changes & BNXT_FLAG_TPA) {
update_tpa = true;
if ((bp->flags & BNXT_FLAG_TPA) == 0 ||
(flags & BNXT_FLAG_TPA) == 0 ||
(bp->flags & BNXT_FLAG_CHIP_P5))
re_init = true;
}
if (changes & ~BNXT_FLAG_TPA)
re_init = true;
if (flags != bp->flags) {
u32 old_flags = bp->flags;
if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
bp->flags = flags;
if (update_tpa)
bnxt_set_ring_params(bp);
return rc;
}
if (re_init) {
bnxt_close_nic(bp, false, false);
bp->flags = flags;
if (update_tpa)
bnxt_set_ring_params(bp);
return bnxt_open_nic(bp, false, false);
}
if (update_tpa) {
bp->flags = flags;
rc = bnxt_set_tpa(bp,
(flags & BNXT_FLAG_TPA) ?
true : false);
if (rc)
bp->flags = old_flags;
}
}
return rc;
}
static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off,
u8 **nextp)
{
struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + nw_off);
int hdr_count = 0;
u8 *nexthdr;
int start;
/* Check that there are at most 2 IPv6 extension headers, no
* fragment header, and each is <= 64 bytes.
*/
start = nw_off + sizeof(*ip6h);
nexthdr = &ip6h->nexthdr;
while (ipv6_ext_hdr(*nexthdr)) {
struct ipv6_opt_hdr *hp;
int hdrlen;
if (hdr_count >= 3 || *nexthdr == NEXTHDR_NONE ||
*nexthdr == NEXTHDR_FRAGMENT)
return false;
hp = __skb_header_pointer(NULL, start, sizeof(*hp), skb->data,
skb_headlen(skb), NULL);
if (!hp)
return false;
if (*nexthdr == NEXTHDR_AUTH)
hdrlen = ipv6_authlen(hp);
else
hdrlen = ipv6_optlen(hp);
if (hdrlen > 64)
return false;
nexthdr = &hp->nexthdr;
start += hdrlen;
hdr_count++;
}
if (nextp) {
/* Caller will check inner protocol */
if (skb->encapsulation) {
*nextp = nexthdr;
return true;
}
*nextp = NULL;
}
/* Only support TCP/UDP for non-tunneled ipv6 and inner ipv6 */
return *nexthdr == IPPROTO_TCP || *nexthdr == IPPROTO_UDP;
}
/* For UDP, we can only handle 1 Vxlan port and 1 Geneve port. */
static bool bnxt_udp_tunl_check(struct bnxt *bp, struct sk_buff *skb)
{
struct udphdr *uh = udp_hdr(skb);
__be16 udp_port = uh->dest;
if (udp_port != bp->vxlan_port && udp_port != bp->nge_port)
return false;
if (skb->inner_protocol_type == ENCAP_TYPE_ETHER) {
struct ethhdr *eh = inner_eth_hdr(skb);
switch (eh->h_proto) {
case htons(ETH_P_IP):
return true;
case htons(ETH_P_IPV6):
return bnxt_exthdr_check(bp, skb,
skb_inner_network_offset(skb),
NULL);
}
}
return false;
}
static bool bnxt_tunl_check(struct bnxt *bp, struct sk_buff *skb, u8 l4_proto)
{
switch (l4_proto) {
case IPPROTO_UDP:
return bnxt_udp_tunl_check(bp, skb);
case IPPROTO_IPIP:
return true;
case IPPROTO_GRE: {
switch (skb->inner_protocol) {
default:
return false;
case htons(ETH_P_IP):
return true;
case htons(ETH_P_IPV6):
fallthrough;
}
}
case IPPROTO_IPV6:
/* Check ext headers of inner ipv6 */
return bnxt_exthdr_check(bp, skb, skb_inner_network_offset(skb),
NULL);
}
return false;
}
static netdev_features_t bnxt_features_check(struct sk_buff *skb,
struct net_device *dev,
netdev_features_t features)
{
struct bnxt *bp = netdev_priv(dev);
u8 *l4_proto;
features = vlan_features_check(skb, features);
switch (vlan_get_protocol(skb)) {
case htons(ETH_P_IP):
if (!skb->encapsulation)
return features;
l4_proto = &ip_hdr(skb)->protocol;
if (bnxt_tunl_check(bp, skb, *l4_proto))
return features;
break;
case htons(ETH_P_IPV6):
if (!bnxt_exthdr_check(bp, skb, skb_network_offset(skb),
&l4_proto))
break;
if (!l4_proto || bnxt_tunl_check(bp, skb, *l4_proto))
return features;
break;
}
return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
}
int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words,
u32 *reg_buf)
{
struct hwrm_dbg_read_direct_output *resp;
struct hwrm_dbg_read_direct_input *req;
__le32 *dbg_reg_buf;
dma_addr_t mapping;
int rc, i;
rc = hwrm_req_init(bp, req, HWRM_DBG_READ_DIRECT);
if (rc)
return rc;
dbg_reg_buf = hwrm_req_dma_slice(bp, req, num_words * 4,
&mapping);
if (!dbg_reg_buf) {
rc = -ENOMEM;
goto dbg_rd_reg_exit;
}
req->host_dest_addr = cpu_to_le64(mapping);
resp = hwrm_req_hold(bp, req);
req->read_addr = cpu_to_le32(reg_off + CHIMP_REG_VIEW_ADDR);
req->read_len32 = cpu_to_le32(num_words);
rc = hwrm_req_send(bp, req);
if (rc || resp->error_code) {
rc = -EIO;
goto dbg_rd_reg_exit;
}
for (i = 0; i < num_words; i++)
reg_buf[i] = le32_to_cpu(dbg_reg_buf[i]);
dbg_rd_reg_exit:
hwrm_req_drop(bp, req);
return rc;
}
static int bnxt_dbg_hwrm_ring_info_get(struct bnxt *bp, u8 ring_type,
u32 ring_id, u32 *prod, u32 *cons)
{
struct hwrm_dbg_ring_info_get_output *resp;
struct hwrm_dbg_ring_info_get_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_DBG_RING_INFO_GET);
if (rc)
return rc;
req->ring_type = ring_type;
req->fw_ring_id = cpu_to_le32(ring_id);
resp = hwrm_req_hold(bp, req);
rc = hwrm_req_send(bp, req);
if (!rc) {
*prod = le32_to_cpu(resp->producer_index);
*cons = le32_to_cpu(resp->consumer_index);
}
hwrm_req_drop(bp, req);
return rc;
}
static void bnxt_dump_tx_sw_state(struct bnxt_napi *bnapi)
{
struct bnxt_tx_ring_info *txr = bnapi->tx_ring;
int i = bnapi->index;
if (!txr)
return;
netdev_info(bnapi->bp->dev, "[%d]: tx{fw_ring: %d prod: %x cons: %x}\n",
i, txr->tx_ring_struct.fw_ring_id, txr->tx_prod,
txr->tx_cons);
}
static void bnxt_dump_rx_sw_state(struct bnxt_napi *bnapi)
{
struct bnxt_rx_ring_info *rxr = bnapi->rx_ring;
int i = bnapi->index;
if (!rxr)
return;
netdev_info(bnapi->bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n",
i, rxr->rx_ring_struct.fw_ring_id, rxr->rx_prod,
rxr->rx_agg_ring_struct.fw_ring_id, rxr->rx_agg_prod,
rxr->rx_sw_agg_prod);
}
static void bnxt_dump_cp_sw_state(struct bnxt_napi *bnapi)
{
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
int i = bnapi->index;
netdev_info(bnapi->bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n",
i, cpr->cp_ring_struct.fw_ring_id, cpr->cp_raw_cons);
}
static void bnxt_dbg_dump_states(struct bnxt *bp)
{
int i;
struct bnxt_napi *bnapi;
for (i = 0; i < bp->cp_nr_rings; i++) {
bnapi = bp->bnapi[i];
if (netif_msg_drv(bp)) {
bnxt_dump_tx_sw_state(bnapi);
bnxt_dump_rx_sw_state(bnapi);
bnxt_dump_cp_sw_state(bnapi);
}
}
}
static int bnxt_hwrm_rx_ring_reset(struct bnxt *bp, int ring_nr)
{
struct bnxt_rx_ring_info *rxr = &bp->rx_ring[ring_nr];
struct hwrm_ring_reset_input *req;
struct bnxt_napi *bnapi = rxr->bnapi;
struct bnxt_cp_ring_info *cpr;
u16 cp_ring_id;
int rc;
rc = hwrm_req_init(bp, req, HWRM_RING_RESET);
if (rc)
return rc;
cpr = &bnapi->cp_ring;
cp_ring_id = cpr->cp_ring_struct.fw_ring_id;
req->cmpl_ring = cpu_to_le16(cp_ring_id);
req->ring_type = RING_RESET_REQ_RING_TYPE_RX_RING_GRP;
req->ring_id = cpu_to_le16(bp->grp_info[bnapi->index].fw_grp_id);
return hwrm_req_send_silent(bp, req);
}
static void bnxt_reset_task(struct bnxt *bp, bool silent)
{
if (!silent)
bnxt_dbg_dump_states(bp);
if (netif_running(bp->dev)) {
int rc;
if (silent) {
bnxt_close_nic(bp, false, false);
bnxt_open_nic(bp, false, false);
} else {
bnxt_ulp_stop(bp);
bnxt_close_nic(bp, true, false);
rc = bnxt_open_nic(bp, true, false);
bnxt_ulp_start(bp, rc);
}
}
}
static void bnxt_tx_timeout(struct net_device *dev, unsigned int txqueue)
{
struct bnxt *bp = netdev_priv(dev);
netdev_err(bp->dev, "TX timeout detected, starting reset task!\n");
set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
static void bnxt_fw_health_check(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
u32 val;
if (!fw_health->enabled || test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
return;
/* Make sure it is enabled before checking the tmr_counter. */
smp_rmb();
if (fw_health->tmr_counter) {
fw_health->tmr_counter--;
return;
}
val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
if (val == fw_health->last_fw_heartbeat) {
fw_health->arrests++;
goto fw_reset;
}
fw_health->last_fw_heartbeat = val;
val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
if (val != fw_health->last_fw_reset_cnt) {
fw_health->discoveries++;
goto fw_reset;
}
fw_health->tmr_counter = fw_health->tmr_multiplier;
return;
fw_reset:
set_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
static void bnxt_timer(struct timer_list *t)
{
struct bnxt *bp = from_timer(bp, t, timer);
struct net_device *dev = bp->dev;
if (!netif_running(dev) || !test_bit(BNXT_STATE_OPEN, &bp->state))
return;
if (atomic_read(&bp->intr_sem) != 0)
goto bnxt_restart_timer;
if (bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)
bnxt_fw_health_check(bp);
if (BNXT_LINK_IS_UP(bp) && bp->stats_coal_ticks) {
set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
if (bnxt_tc_flower_enabled(bp)) {
set_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
#ifdef CONFIG_RFS_ACCEL
if ((bp->flags & BNXT_FLAG_RFS) && bp->ntp_fltr_count) {
set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
#endif /*CONFIG_RFS_ACCEL*/
if (bp->link_info.phy_retry) {
if (time_after(jiffies, bp->link_info.phy_retry_expires)) {
bp->link_info.phy_retry = false;
netdev_warn(bp->dev, "failed to update phy settings after maximum retries.\n");
} else {
set_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
}
if (test_bit(BNXT_STATE_L2_FILTER_RETRY, &bp->state)) {
set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
if ((bp->flags & BNXT_FLAG_CHIP_P5) && !bp->chip_rev &&
netif_carrier_ok(dev)) {
set_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
}
bnxt_restart_timer:
mod_timer(&bp->timer, jiffies + bp->current_interval);
}
static void bnxt_rtnl_lock_sp(struct bnxt *bp)
{
/* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK
* set. If the device is being closed, bnxt_close() may be holding
* rtnl() and waiting for BNXT_STATE_IN_SP_TASK to clear. So we
* must clear BNXT_STATE_IN_SP_TASK before holding rtnl().
*/
clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
rtnl_lock();
}
static void bnxt_rtnl_unlock_sp(struct bnxt *bp)
{
set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
rtnl_unlock();
}
/* Only called from bnxt_sp_task() */
static void bnxt_reset(struct bnxt *bp, bool silent)
{
bnxt_rtnl_lock_sp(bp);
if (test_bit(BNXT_STATE_OPEN, &bp->state))
bnxt_reset_task(bp, silent);
bnxt_rtnl_unlock_sp(bp);
}
/* Only called from bnxt_sp_task() */
static void bnxt_rx_ring_reset(struct bnxt *bp)
{
int i;
bnxt_rtnl_lock_sp(bp);
if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
bnxt_rtnl_unlock_sp(bp);
return;
}
/* Disable and flush TPA before resetting the RX ring */
if (bp->flags & BNXT_FLAG_TPA)
bnxt_set_tpa(bp, false);
for (i = 0; i < bp->rx_nr_rings; i++) {
struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i];
struct bnxt_cp_ring_info *cpr;
int rc;
if (!rxr->bnapi->in_reset)
continue;
rc = bnxt_hwrm_rx_ring_reset(bp, i);
if (rc) {
if (rc == -EINVAL || rc == -EOPNOTSUPP)
netdev_info_once(bp->dev, "RX ring reset not supported by firmware, falling back to global reset\n");
else
netdev_warn(bp->dev, "RX ring reset failed, rc = %d, falling back to global reset\n",
rc);
bnxt_reset_task(bp, true);
break;
}
bnxt_free_one_rx_ring_skbs(bp, i);
rxr->rx_prod = 0;
rxr->rx_agg_prod = 0;
rxr->rx_sw_agg_prod = 0;
rxr->rx_next_cons = 0;
rxr->bnapi->in_reset = false;
bnxt_alloc_one_rx_ring(bp, i);
cpr = &rxr->bnapi->cp_ring;
cpr->sw_stats.rx.rx_resets++;
if (bp->flags & BNXT_FLAG_AGG_RINGS)
bnxt_db_write(bp, &rxr->rx_agg_db, rxr->rx_agg_prod);
bnxt_db_write(bp, &rxr->rx_db, rxr->rx_prod);
}
if (bp->flags & BNXT_FLAG_TPA)
bnxt_set_tpa(bp, true);
bnxt_rtnl_unlock_sp(bp);
}
static void bnxt_fw_reset_close(struct bnxt *bp)
{
bnxt_ulp_stop(bp);
/* When firmware is in fatal state, quiesce device and disable
* bus master to prevent any potential bad DMAs before freeing
* kernel memory.
*/
if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state)) {
u16 val = 0;
pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val);
if (val == 0xffff)
bp->fw_reset_min_dsecs = 0;
bnxt_tx_disable(bp);
bnxt_disable_napi(bp);
bnxt_disable_int_sync(bp);
bnxt_free_irq(bp);
bnxt_clear_int_mode(bp);
pci_disable_device(bp->pdev);
}
__bnxt_close_nic(bp, true, false);
bnxt_vf_reps_free(bp);
bnxt_clear_int_mode(bp);
bnxt_hwrm_func_drv_unrgtr(bp);
if (pci_is_enabled(bp->pdev))
pci_disable_device(bp->pdev);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
}
static bool is_bnxt_fw_ok(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
bool no_heartbeat = false, has_reset = false;
u32 val;
val = bnxt_fw_health_readl(bp, BNXT_FW_HEARTBEAT_REG);
if (val == fw_health->last_fw_heartbeat)
no_heartbeat = true;
val = bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
if (val != fw_health->last_fw_reset_cnt)
has_reset = true;
if (!no_heartbeat && has_reset)
return true;
return false;
}
/* rtnl_lock is acquired before calling this function */
static void bnxt_force_fw_reset(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;
u32 wait_dsecs;
if (!test_bit(BNXT_STATE_OPEN, &bp->state) ||
test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
return;
if (ptp) {
spin_lock_bh(&ptp->ptp_lock);
set_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
spin_unlock_bh(&ptp->ptp_lock);
} else {
set_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
}
bnxt_fw_reset_close(bp);
wait_dsecs = fw_health->master_func_wait_dsecs;
if (fw_health->primary) {
if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU)
wait_dsecs = 0;
bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW;
} else {
bp->fw_reset_timestamp = jiffies + wait_dsecs * HZ / 10;
wait_dsecs = fw_health->normal_func_wait_dsecs;
bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
}
bp->fw_reset_min_dsecs = fw_health->post_reset_wait_dsecs;
bp->fw_reset_max_dsecs = fw_health->post_reset_max_wait_dsecs;
bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10);
}
void bnxt_fw_exception(struct bnxt *bp)
{
netdev_warn(bp->dev, "Detected firmware fatal condition, initiating reset\n");
set_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
bnxt_rtnl_lock_sp(bp);
bnxt_force_fw_reset(bp);
bnxt_rtnl_unlock_sp(bp);
}
/* Returns the number of registered VFs, or 1 if VF configuration is pending, or
* < 0 on error.
*/
static int bnxt_get_registered_vfs(struct bnxt *bp)
{
#ifdef CONFIG_BNXT_SRIOV
int rc;
if (!BNXT_PF(bp))
return 0;
rc = bnxt_hwrm_func_qcfg(bp);
if (rc) {
netdev_err(bp->dev, "func_qcfg cmd failed, rc = %d\n", rc);
return rc;
}
if (bp->pf.registered_vfs)
return bp->pf.registered_vfs;
if (bp->sriov_cfg)
return 1;
#endif
return 0;
}
void bnxt_fw_reset(struct bnxt *bp)
{
bnxt_rtnl_lock_sp(bp);
if (test_bit(BNXT_STATE_OPEN, &bp->state) &&
!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;
int n = 0, tmo;
if (ptp) {
spin_lock_bh(&ptp->ptp_lock);
set_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
spin_unlock_bh(&ptp->ptp_lock);
} else {
set_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
}
if (bp->pf.active_vfs &&
!test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state))
n = bnxt_get_registered_vfs(bp);
if (n < 0) {
netdev_err(bp->dev, "Firmware reset aborted, rc = %d\n",
n);
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
dev_close(bp->dev);
goto fw_reset_exit;
} else if (n > 0) {
u16 vf_tmo_dsecs = n * 10;
if (bp->fw_reset_max_dsecs < vf_tmo_dsecs)
bp->fw_reset_max_dsecs = vf_tmo_dsecs;
bp->fw_reset_state =
BNXT_FW_RESET_STATE_POLL_VF;
bnxt_queue_fw_reset_work(bp, HZ / 10);
goto fw_reset_exit;
}
bnxt_fw_reset_close(bp);
if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) {
bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN;
tmo = HZ / 10;
} else {
bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
tmo = bp->fw_reset_min_dsecs * HZ / 10;
}
bnxt_queue_fw_reset_work(bp, tmo);
}
fw_reset_exit:
bnxt_rtnl_unlock_sp(bp);
}
static void bnxt_chk_missed_irq(struct bnxt *bp)
{
int i;
if (!(bp->flags & BNXT_FLAG_CHIP_P5))
return;
for (i = 0; i < bp->cp_nr_rings; i++) {
struct bnxt_napi *bnapi = bp->bnapi[i];
struct bnxt_cp_ring_info *cpr;
u32 fw_ring_id;
int j;
if (!bnapi)
continue;
cpr = &bnapi->cp_ring;
for (j = 0; j < 2; j++) {
struct bnxt_cp_ring_info *cpr2 = cpr->cp_ring_arr[j];
u32 val[2];
if (!cpr2 || cpr2->has_more_work ||
!bnxt_has_work(bp, cpr2))
continue;
if (cpr2->cp_raw_cons != cpr2->last_cp_raw_cons) {
cpr2->last_cp_raw_cons = cpr2->cp_raw_cons;
continue;
}
fw_ring_id = cpr2->cp_ring_struct.fw_ring_id;
bnxt_dbg_hwrm_ring_info_get(bp,
DBG_RING_INFO_GET_REQ_RING_TYPE_L2_CMPL,
fw_ring_id, &val[0], &val[1]);
cpr->sw_stats.cmn.missed_irqs++;
}
}
}
static void bnxt_cfg_ntp_filters(struct bnxt *);
static void bnxt_init_ethtool_link_settings(struct bnxt *bp)
{
struct bnxt_link_info *link_info = &bp->link_info;
if (BNXT_AUTO_MODE(link_info->auto_mode)) {
link_info->autoneg = BNXT_AUTONEG_SPEED;
if (bp->hwrm_spec_code >= 0x10201) {
if (link_info->auto_pause_setting &
PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE)
link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
} else {
link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
}
link_info->advertising = link_info->auto_link_speeds;
link_info->advertising_pam4 = link_info->auto_pam4_link_speeds;
} else {
link_info->req_link_speed = link_info->force_link_speed;
link_info->req_signal_mode = BNXT_SIG_MODE_NRZ;
if (link_info->force_pam4_link_speed) {
link_info->req_link_speed =
link_info->force_pam4_link_speed;
link_info->req_signal_mode = BNXT_SIG_MODE_PAM4;
}
link_info->req_duplex = link_info->duplex_setting;
}
if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
link_info->req_flow_ctrl =
link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH;
else
link_info->req_flow_ctrl = link_info->force_pause_setting;
}
static void bnxt_fw_echo_reply(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
struct hwrm_func_echo_response_input *req;
int rc;
rc = hwrm_req_init(bp, req, HWRM_FUNC_ECHO_RESPONSE);
if (rc)
return;
req->event_data1 = cpu_to_le32(fw_health->echo_req_data1);
req->event_data2 = cpu_to_le32(fw_health->echo_req_data2);
hwrm_req_send(bp, req);
}
static void bnxt_sp_task(struct work_struct *work)
{
struct bnxt *bp = container_of(work, struct bnxt, sp_task);
set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
smp_mb__after_atomic();
if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
return;
}
if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event))
bnxt_cfg_rx_mode(bp);
if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event))
bnxt_cfg_ntp_filters(bp);
if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event))
bnxt_hwrm_exec_fwd_req(bp);
if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) {
bnxt_hwrm_port_qstats(bp, 0);
bnxt_hwrm_port_qstats_ext(bp, 0);
bnxt_accumulate_all_stats(bp);
}
if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
int rc;
mutex_lock(&bp->link_lock);
if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT,
&bp->sp_event))
bnxt_hwrm_phy_qcaps(bp);
rc = bnxt_update_link(bp, true);
if (rc)
netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
rc);
if (test_and_clear_bit(BNXT_LINK_CFG_CHANGE_SP_EVENT,
&bp->sp_event))
bnxt_init_ethtool_link_settings(bp);
mutex_unlock(&bp->link_lock);
}
if (test_and_clear_bit(BNXT_UPDATE_PHY_SP_EVENT, &bp->sp_event)) {
int rc;
mutex_lock(&bp->link_lock);
rc = bnxt_update_phy_setting(bp);
mutex_unlock(&bp->link_lock);
if (rc) {
netdev_warn(bp->dev, "update phy settings retry failed\n");
} else {
bp->link_info.phy_retry = false;
netdev_info(bp->dev, "update phy settings retry succeeded\n");
}
}
if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) {
mutex_lock(&bp->link_lock);
bnxt_get_port_module_status(bp);
mutex_unlock(&bp->link_lock);
}
if (test_and_clear_bit(BNXT_FLOW_STATS_SP_EVENT, &bp->sp_event))
bnxt_tc_flow_stats_work(bp);
if (test_and_clear_bit(BNXT_RING_COAL_NOW_SP_EVENT, &bp->sp_event))
bnxt_chk_missed_irq(bp);
if (test_and_clear_bit(BNXT_FW_ECHO_REQUEST_SP_EVENT, &bp->sp_event))
bnxt_fw_echo_reply(bp);
/* These functions below will clear BNXT_STATE_IN_SP_TASK. They
* must be the last functions to be called before exiting.
*/
if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event))
bnxt_reset(bp, false);
if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event))
bnxt_reset(bp, true);
if (test_and_clear_bit(BNXT_RST_RING_SP_EVENT, &bp->sp_event))
bnxt_rx_ring_reset(bp);
if (test_and_clear_bit(BNXT_FW_RESET_NOTIFY_SP_EVENT, &bp->sp_event)) {
if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) ||
test_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state))
bnxt_devlink_health_fw_report(bp);
else
bnxt_fw_reset(bp);
}
if (test_and_clear_bit(BNXT_FW_EXCEPTION_SP_EVENT, &bp->sp_event)) {
if (!is_bnxt_fw_ok(bp))
bnxt_devlink_health_fw_report(bp);
}
smp_mb__before_atomic();
clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
}
/* Under rtnl_lock */
int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
int tx_xdp)
{
int max_rx, max_tx, tx_sets = 1;
int tx_rings_needed, stats;
int rx_rings = rx;
int cp, vnics, rc;
if (tcs)
tx_sets = tcs;
rc = bnxt_get_max_rings(bp, &max_rx, &max_tx, sh);
if (rc)
return rc;
if (max_rx < rx)
return -ENOMEM;
tx_rings_needed = tx * tx_sets + tx_xdp;
if (max_tx < tx_rings_needed)
return -ENOMEM;
vnics = 1;
if ((bp->flags & (BNXT_FLAG_RFS | BNXT_FLAG_CHIP_P5)) == BNXT_FLAG_RFS)
vnics += rx_rings;
if (bp->flags & BNXT_FLAG_AGG_RINGS)
rx_rings <<= 1;
cp = sh ? max_t(int, tx_rings_needed, rx) : tx_rings_needed + rx;
stats = cp;
if (BNXT_NEW_RM(bp)) {
cp += bnxt_get_ulp_msix_num(bp);
stats += bnxt_get_ulp_stat_ctxs(bp);
}
return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp,
stats, vnics);
}
static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev)
{
if (bp->bar2) {
pci_iounmap(pdev, bp->bar2);
bp->bar2 = NULL;
}
if (bp->bar1) {
pci_iounmap(pdev, bp->bar1);
bp->bar1 = NULL;
}
if (bp->bar0) {
pci_iounmap(pdev, bp->bar0);
bp->bar0 = NULL;
}
}
static void bnxt_cleanup_pci(struct bnxt *bp)
{
bnxt_unmap_bars(bp, bp->pdev);
pci_release_regions(bp->pdev);
if (pci_is_enabled(bp->pdev))
pci_disable_device(bp->pdev);
}
static void bnxt_init_dflt_coal(struct bnxt *bp)
{
struct bnxt_coal_cap *coal_cap = &bp->coal_cap;
struct bnxt_coal *coal;
u16 flags = 0;
if (coal_cap->cmpl_params &
RING_AGGINT_QCAPS_RESP_CMPL_PARAMS_TIMER_RESET)
flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET;
/* Tick values in micro seconds.
* 1 coal_buf x bufs_per_record = 1 completion record.
*/
coal = &bp->rx_coal;
coal->coal_ticks = 10;
coal->coal_bufs = 30;
coal->coal_ticks_irq = 1;
coal->coal_bufs_irq = 2;
coal->idle_thresh = 50;
coal->bufs_per_record = 2;
coal->budget = 64; /* NAPI budget */
coal->flags = flags;
coal = &bp->tx_coal;
coal->coal_ticks = 28;
coal->coal_bufs = 30;
coal->coal_ticks_irq = 2;
coal->coal_bufs_irq = 2;
coal->bufs_per_record = 1;
coal->flags = flags;
bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS;
}
static int bnxt_fw_init_one_p1(struct bnxt *bp)
{
int rc;
bp->fw_cap = 0;
rc = bnxt_hwrm_ver_get(bp);
bnxt_try_map_fw_health_reg(bp);
if (rc) {
rc = bnxt_try_recover_fw(bp);
if (rc)
return rc;
rc = bnxt_hwrm_ver_get(bp);
if (rc)
return rc;
}
bnxt_nvm_cfg_ver_get(bp);
rc = bnxt_hwrm_func_reset(bp);
if (rc)
return -ENODEV;
bnxt_hwrm_fw_set_time(bp);
return 0;
}
static int bnxt_fw_init_one_p2(struct bnxt *bp)
{
int rc;
/* Get the MAX capabilities for this function */
rc = bnxt_hwrm_func_qcaps(bp);
if (rc) {
netdev_err(bp->dev, "hwrm query capability failure rc: %x\n",
rc);
return -ENODEV;
}
rc = bnxt_hwrm_cfa_adv_flow_mgnt_qcaps(bp);
if (rc)
netdev_warn(bp->dev, "hwrm query adv flow mgnt failure rc: %d\n",
rc);
if (bnxt_alloc_fw_health(bp)) {
netdev_warn(bp->dev, "no memory for firmware error recovery\n");
} else {
rc = bnxt_hwrm_error_recovery_qcfg(bp);
if (rc)
netdev_warn(bp->dev, "hwrm query error recovery failure rc: %d\n",
rc);
}
rc = bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false);
if (rc)
return -ENODEV;
bnxt_hwrm_func_qcfg(bp);
bnxt_hwrm_vnic_qcaps(bp);
bnxt_hwrm_port_led_qcaps(bp);
bnxt_ethtool_init(bp);
bnxt_dcb_init(bp);
return 0;
}
static void bnxt_set_dflt_rss_hash_type(struct bnxt *bp)
{
bp->flags &= ~BNXT_FLAG_UDP_RSS_CAP;
bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 |
VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 |
VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 |
VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6;
if (BNXT_CHIP_P4_PLUS(bp) && bp->hwrm_spec_code >= 0x10501) {
bp->flags |= BNXT_FLAG_UDP_RSS_CAP;
bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 |
VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6;
}
}
static void bnxt_set_dflt_rfs(struct bnxt *bp)
{
struct net_device *dev = bp->dev;
dev->hw_features &= ~NETIF_F_NTUPLE;
dev->features &= ~NETIF_F_NTUPLE;
bp->flags &= ~BNXT_FLAG_RFS;
if (bnxt_rfs_supported(bp)) {
dev->hw_features |= NETIF_F_NTUPLE;
if (bnxt_rfs_capable(bp)) {
bp->flags |= BNXT_FLAG_RFS;
dev->features |= NETIF_F_NTUPLE;
}
}
}
static void bnxt_fw_init_one_p3(struct bnxt *bp)
{
struct pci_dev *pdev = bp->pdev;
bnxt_set_dflt_rss_hash_type(bp);
bnxt_set_dflt_rfs(bp);
bnxt_get_wol_settings(bp);
if (bp->flags & BNXT_FLAG_WOL_CAP)
device_set_wakeup_enable(&pdev->dev, bp->wol);
else
device_set_wakeup_capable(&pdev->dev, false);
bnxt_hwrm_set_cache_line_size(bp, cache_line_size());
bnxt_hwrm_coal_params_qcaps(bp);
}
static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt);
int bnxt_fw_init_one(struct bnxt *bp)
{
int rc;
rc = bnxt_fw_init_one_p1(bp);
if (rc) {
netdev_err(bp->dev, "Firmware init phase 1 failed\n");
return rc;
}
rc = bnxt_fw_init_one_p2(bp);
if (rc) {
netdev_err(bp->dev, "Firmware init phase 2 failed\n");
return rc;
}
rc = bnxt_probe_phy(bp, false);
if (rc)
return rc;
rc = bnxt_approve_mac(bp, bp->dev->dev_addr, false);
if (rc)
return rc;
bnxt_fw_init_one_p3(bp);
return 0;
}
static void bnxt_fw_reset_writel(struct bnxt *bp, int reg_idx)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
u32 reg = fw_health->fw_reset_seq_regs[reg_idx];
u32 val = fw_health->fw_reset_seq_vals[reg_idx];
u32 reg_type, reg_off, delay_msecs;
delay_msecs = fw_health->fw_reset_seq_delay_msec[reg_idx];
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_write_config_dword(bp->pdev, reg_off, val);
break;
case BNXT_FW_HEALTH_REG_TYPE_GRC:
writel(reg_off & BNXT_GRC_BASE_MASK,
bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 4);
reg_off = (reg_off & BNXT_GRC_OFFSET_MASK) + 0x2000;
fallthrough;
case BNXT_FW_HEALTH_REG_TYPE_BAR0:
writel(val, bp->bar0 + reg_off);
break;
case BNXT_FW_HEALTH_REG_TYPE_BAR1:
writel(val, bp->bar1 + reg_off);
break;
}
if (delay_msecs) {
pci_read_config_dword(bp->pdev, 0, &val);
msleep(delay_msecs);
}
}
bool bnxt_hwrm_reset_permitted(struct bnxt *bp)
{
struct hwrm_func_qcfg_output *resp;
struct hwrm_func_qcfg_input *req;
bool result = true; /* firmware will enforce if unknown */
if (~bp->fw_cap & BNXT_FW_CAP_HOT_RESET_IF)
return result;
if (hwrm_req_init(bp, req, HWRM_FUNC_QCFG))
return result;
req->fid = cpu_to_le16(0xffff);
resp = hwrm_req_hold(bp, req);
if (!hwrm_req_send(bp, req))
result = !!(le16_to_cpu(resp->flags) &
FUNC_QCFG_RESP_FLAGS_HOT_RESET_ALLOWED);
hwrm_req_drop(bp, req);
return result;
}
static void bnxt_reset_all(struct bnxt *bp)
{
struct bnxt_fw_health *fw_health = bp->fw_health;
int i, rc;
if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) {
bnxt_fw_reset_via_optee(bp);
bp->fw_reset_timestamp = jiffies;
return;
}
if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_HOST) {
for (i = 0; i < fw_health->fw_reset_seq_cnt; i++)
bnxt_fw_reset_writel(bp, i);
} else if (fw_health->flags & ERROR_RECOVERY_QCFG_RESP_FLAGS_CO_CPU) {
struct hwrm_fw_reset_input *req;
rc = hwrm_req_init(bp, req, HWRM_FW_RESET);
if (!rc) {
req->target_id = cpu_to_le16(HWRM_TARGET_ID_KONG);
req->embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_CHIP;
req->selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTASAP;
req->flags = FW_RESET_REQ_FLAGS_RESET_GRACEFUL;
rc = hwrm_req_send(bp, req);
}
if (rc != -ENODEV)
netdev_warn(bp->dev, "Unable to reset FW rc=%d\n", rc);
}
bp->fw_reset_timestamp = jiffies;
}
static bool bnxt_fw_reset_timeout(struct bnxt *bp)
{
return time_after(jiffies, bp->fw_reset_timestamp +
(bp->fw_reset_max_dsecs * HZ / 10));
}
static void bnxt_fw_reset_abort(struct bnxt *bp, int rc)
{
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
if (bp->fw_reset_state != BNXT_FW_RESET_STATE_POLL_VF) {
bnxt_ulp_start(bp, rc);
bnxt_dl_health_fw_status_update(bp, false);
}
bp->fw_reset_state = 0;
dev_close(bp->dev);
}
static void bnxt_fw_reset_task(struct work_struct *work)
{
struct bnxt *bp = container_of(work, struct bnxt, fw_reset_task.work);
int rc = 0;
if (!test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {
netdev_err(bp->dev, "bnxt_fw_reset_task() called when not in fw reset mode!\n");
return;
}
switch (bp->fw_reset_state) {
case BNXT_FW_RESET_STATE_POLL_VF: {
int n = bnxt_get_registered_vfs(bp);
int tmo;
if (n < 0) {
netdev_err(bp->dev, "Firmware reset aborted, subsequent func_qcfg cmd failed, rc = %d, %d msecs since reset timestamp\n",
n, jiffies_to_msecs(jiffies -
bp->fw_reset_timestamp));
goto fw_reset_abort;
} else if (n > 0) {
if (bnxt_fw_reset_timeout(bp)) {
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
bp->fw_reset_state = 0;
netdev_err(bp->dev, "Firmware reset aborted, bnxt_get_registered_vfs() returns %d\n",
n);
return;
}
bnxt_queue_fw_reset_work(bp, HZ / 10);
return;
}
bp->fw_reset_timestamp = jiffies;
rtnl_lock();
if (test_bit(BNXT_STATE_ABORT_ERR, &bp->state)) {
bnxt_fw_reset_abort(bp, rc);
rtnl_unlock();
return;
}
bnxt_fw_reset_close(bp);
if (bp->fw_cap & BNXT_FW_CAP_ERR_RECOVER_RELOAD) {
bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW_DOWN;
tmo = HZ / 10;
} else {
bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
tmo = bp->fw_reset_min_dsecs * HZ / 10;
}
rtnl_unlock();
bnxt_queue_fw_reset_work(bp, tmo);
return;
}
case BNXT_FW_RESET_STATE_POLL_FW_DOWN: {
u32 val;
val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
if (!(val & BNXT_FW_STATUS_SHUTDOWN) &&
!bnxt_fw_reset_timeout(bp)) {
bnxt_queue_fw_reset_work(bp, HZ / 5);
return;
}
if (!bp->fw_health->primary) {
u32 wait_dsecs = bp->fw_health->normal_func_wait_dsecs;
bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
bnxt_queue_fw_reset_work(bp, wait_dsecs * HZ / 10);
return;
}
bp->fw_reset_state = BNXT_FW_RESET_STATE_RESET_FW;
}
fallthrough;
case BNXT_FW_RESET_STATE_RESET_FW:
bnxt_reset_all(bp);
bp->fw_reset_state = BNXT_FW_RESET_STATE_ENABLE_DEV;
bnxt_queue_fw_reset_work(bp, bp->fw_reset_min_dsecs * HZ / 10);
return;
case BNXT_FW_RESET_STATE_ENABLE_DEV:
bnxt_inv_fw_health_reg(bp);
if (test_bit(BNXT_STATE_FW_FATAL_COND, &bp->state) &&
!bp->fw_reset_min_dsecs) {
u16 val;
pci_read_config_word(bp->pdev, PCI_SUBSYSTEM_ID, &val);
if (val == 0xffff) {
if (bnxt_fw_reset_timeout(bp)) {
netdev_err(bp->dev, "Firmware reset aborted, PCI config space invalid\n");
rc = -ETIMEDOUT;
goto fw_reset_abort;
}
bnxt_queue_fw_reset_work(bp, HZ / 1000);
return;
}
}
clear_bit(BNXT_STATE_FW_FATAL_COND, &bp->state);
clear_bit(BNXT_STATE_FW_NON_FATAL_COND, &bp->state);
if (test_and_clear_bit(BNXT_STATE_FW_ACTIVATE_RESET, &bp->state) &&
!test_bit(BNXT_STATE_FW_ACTIVATE, &bp->state))
bnxt_dl_remote_reload(bp);
if (pci_enable_device(bp->pdev)) {
netdev_err(bp->dev, "Cannot re-enable PCI device\n");
rc = -ENODEV;
goto fw_reset_abort;
}
pci_set_master(bp->pdev);
bp->fw_reset_state = BNXT_FW_RESET_STATE_POLL_FW;
fallthrough;
case BNXT_FW_RESET_STATE_POLL_FW:
bp->hwrm_cmd_timeout = SHORT_HWRM_CMD_TIMEOUT;
rc = bnxt_hwrm_poll(bp);
if (rc) {
if (bnxt_fw_reset_timeout(bp)) {
netdev_err(bp->dev, "Firmware reset aborted\n");
goto fw_reset_abort_status;
}
bnxt_queue_fw_reset_work(bp, HZ / 5);
return;
}
bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT;
bp->fw_reset_state = BNXT_FW_RESET_STATE_OPENING;
fallthrough;
case BNXT_FW_RESET_STATE_OPENING:
while (!rtnl_trylock()) {
bnxt_queue_fw_reset_work(bp, HZ / 10);
return;
}
rc = bnxt_open(bp->dev);
if (rc) {
netdev_err(bp->dev, "bnxt_open() failed during FW reset\n");
bnxt_fw_reset_abort(bp, rc);
rtnl_unlock();
return;
}
if ((bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY) &&
bp->fw_health->enabled) {
bp->fw_health->last_fw_reset_cnt =
bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
}
bp->fw_reset_state = 0;
/* Make sure fw_reset_state is 0 before clearing the flag */
smp_mb__before_atomic();
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
bnxt_ulp_start(bp, 0);
bnxt_reenable_sriov(bp);
bnxt_vf_reps_alloc(bp);
bnxt_vf_reps_open(bp);
bnxt_ptp_reapply_pps(bp);
clear_bit(BNXT_STATE_FW_ACTIVATE, &bp->state);
if (test_and_clear_bit(BNXT_STATE_RECOVER, &bp->state)) {
bnxt_dl_health_fw_recovery_done(bp);
bnxt_dl_health_fw_status_update(bp, true);
}
rtnl_unlock();
break;
}
return;
fw_reset_abort_status:
if (bp->fw_health->status_reliable ||
(bp->fw_cap & BNXT_FW_CAP_ERROR_RECOVERY)) {
u32 sts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
netdev_err(bp->dev, "fw_health_status 0x%x\n", sts);
}
fw_reset_abort:
rtnl_lock();
bnxt_fw_reset_abort(bp, rc);
rtnl_unlock();
}
static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev)
{
int rc;
struct bnxt *bp = netdev_priv(dev);
SET_NETDEV_DEV(dev, &pdev->dev);
/* enable device (incl. PCI PM wakeup), and bus-mastering */
rc = pci_enable_device(pdev);
if (rc) {
dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
goto init_err;
}
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
dev_err(&pdev->dev,
"Cannot find PCI device base address, aborting\n");
rc = -ENODEV;
goto init_err_disable;
}
rc = pci_request_regions(pdev, DRV_MODULE_NAME);
if (rc) {
dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
goto init_err_disable;
}
if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 &&
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) {
dev_err(&pdev->dev, "System does not support DMA, aborting\n");
rc = -EIO;
goto init_err_release;
}
pci_set_master(pdev);
bp->dev = dev;
bp->pdev = pdev;
/* Doorbell BAR bp->bar1 is mapped after bnxt_fw_init_one_p2()
* determines the BAR size.
*/
bp->bar0 = pci_ioremap_bar(pdev, 0);
if (!bp->bar0) {
dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
rc = -ENOMEM;
goto init_err_release;
}
bp->bar2 = pci_ioremap_bar(pdev, 4);
if (!bp->bar2) {
dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n");
rc = -ENOMEM;
goto init_err_release;
}
pci_enable_pcie_error_reporting(pdev);
INIT_WORK(&bp->sp_task, bnxt_sp_task);
INIT_DELAYED_WORK(&bp->fw_reset_task, bnxt_fw_reset_task);
spin_lock_init(&bp->ntp_fltr_lock);
#if BITS_PER_LONG == 32
spin_lock_init(&bp->db_lock);
#endif
bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE;
bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE;
timer_setup(&bp->timer, bnxt_timer, 0);
bp->current_interval = BNXT_TIMER_INTERVAL;
bp->vxlan_fw_dst_port_id = INVALID_HW_RING_ID;
bp->nge_fw_dst_port_id = INVALID_HW_RING_ID;
clear_bit(BNXT_STATE_OPEN, &bp->state);
return 0;
init_err_release:
bnxt_unmap_bars(bp, pdev);
pci_release_regions(pdev);
init_err_disable:
pci_disable_device(pdev);
init_err:
return rc;
}
/* rtnl_lock held */
static int bnxt_change_mac_addr(struct net_device *dev, void *p)
{
struct sockaddr *addr = p;
struct bnxt *bp = netdev_priv(dev);
int rc = 0;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
if (ether_addr_equal(addr->sa_data, dev->dev_addr))
return 0;
rc = bnxt_approve_mac(bp, addr->sa_data, true);
if (rc)
return rc;
eth_hw_addr_set(dev, addr->sa_data);
if (netif_running(dev)) {
bnxt_close_nic(bp, false, false);
rc = bnxt_open_nic(bp, false, false);
}
return rc;
}
/* rtnl_lock held */
static int bnxt_change_mtu(struct net_device *dev, int new_mtu)
{
struct bnxt *bp = netdev_priv(dev);
if (netif_running(dev))
bnxt_close_nic(bp, true, false);
dev->mtu = new_mtu;
bnxt_set_ring_params(bp);
if (netif_running(dev))
return bnxt_open_nic(bp, true, false);
return 0;
}
int bnxt_setup_mq_tc(struct net_device *dev, u8 tc)
{
struct bnxt *bp = netdev_priv(dev);
bool sh = false;
int rc;
if (tc > bp->max_tc) {
netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n",
tc, bp->max_tc);
return -EINVAL;
}
if (netdev_get_num_tc(dev) == tc)
return 0;
if (bp->flags & BNXT_FLAG_SHARED_RINGS)
sh = true;
rc = bnxt_check_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings,
sh, tc, bp->tx_nr_rings_xdp);
if (rc)
return rc;
/* Needs to close the device and do hw resource re-allocations */
if (netif_running(bp->dev))
bnxt_close_nic(bp, true, false);
if (tc) {
bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc;
netdev_set_num_tc(dev, tc);
} else {
bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
netdev_reset_tc(dev);
}
bp->tx_nr_rings += bp->tx_nr_rings_xdp;
bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
bp->tx_nr_rings + bp->rx_nr_rings;
if (netif_running(bp->dev))
return bnxt_open_nic(bp, true, false);
return 0;
}
static int bnxt_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
void *cb_priv)
{
struct bnxt *bp = cb_priv;
if (!bnxt_tc_flower_enabled(bp) ||
!tc_cls_can_offload_and_chain0(bp->dev, type_data))
return -EOPNOTSUPP;
switch (type) {
case TC_SETUP_CLSFLOWER:
return bnxt_tc_setup_flower(bp, bp->pf.fw_fid, type_data);
default:
return -EOPNOTSUPP;
}
}
LIST_HEAD(bnxt_block_cb_list);
static int bnxt_setup_tc(struct net_device *dev, enum tc_setup_type type,
void *type_data)
{
struct bnxt *bp = netdev_priv(dev);
switch (type) {
case TC_SETUP_BLOCK:
return flow_block_cb_setup_simple(type_data,
&bnxt_block_cb_list,
bnxt_setup_tc_block_cb,
bp, bp, true);
case TC_SETUP_QDISC_MQPRIO: {
struct tc_mqprio_qopt *mqprio = type_data;
mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
return bnxt_setup_mq_tc(dev, mqprio->num_tc);
}
default:
return -EOPNOTSUPP;
}
}
#ifdef CONFIG_RFS_ACCEL
static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
struct bnxt_ntuple_filter *f2)
{
struct flow_keys *keys1 = &f1->fkeys;
struct flow_keys *keys2 = &f2->fkeys;
if (keys1->basic.n_proto != keys2->basic.n_proto ||
keys1->basic.ip_proto != keys2->basic.ip_proto)
return false;
if (keys1->basic.n_proto == htons(ETH_P_IP)) {
if (keys1->addrs.v4addrs.src != keys2->addrs.v4addrs.src ||
keys1->addrs.v4addrs.dst != keys2->addrs.v4addrs.dst)
return false;
} else {
if (memcmp(&keys1->addrs.v6addrs.src, &keys2->addrs.v6addrs.src,
sizeof(keys1->addrs.v6addrs.src)) ||
memcmp(&keys1->addrs.v6addrs.dst, &keys2->addrs.v6addrs.dst,
sizeof(keys1->addrs.v6addrs.dst)))
return false;
}
if (keys1->ports.ports == keys2->ports.ports &&
keys1->control.flags == keys2->control.flags &&
ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr) &&
ether_addr_equal(f1->dst_mac_addr, f2->dst_mac_addr))
return true;
return false;
}
static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
u16 rxq_index, u32 flow_id)
{
struct bnxt *bp = netdev_priv(dev);
struct bnxt_ntuple_filter *fltr, *new_fltr;
struct flow_keys *fkeys;
struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb);
int rc = 0, idx, bit_id, l2_idx = 0;
struct hlist_head *head;
u32 flags;
if (!ether_addr_equal(dev->dev_addr, eth->h_dest)) {
struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
int off = 0, j;
netif_addr_lock_bh(dev);
for (j = 0; j < vnic->uc_filter_count; j++, off += ETH_ALEN) {
if (ether_addr_equal(eth->h_dest,
vnic->uc_list + off)) {
l2_idx = j + 1;
break;
}
}
netif_addr_unlock_bh(dev);
if (!l2_idx)
return -EINVAL;
}
new_fltr = kzalloc(sizeof(*new_fltr), GFP_ATOMIC);
if (!new_fltr)
return -ENOMEM;
fkeys = &new_fltr->fkeys;
if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) {
rc = -EPROTONOSUPPORT;
goto err_free;
}
if ((fkeys->basic.n_proto != htons(ETH_P_IP) &&
fkeys->basic.n_proto != htons(ETH_P_IPV6)) ||
((fkeys->basic.ip_proto != IPPROTO_TCP) &&
(fkeys->basic.ip_proto != IPPROTO_UDP))) {
rc = -EPROTONOSUPPORT;
goto err_free;
}
if (fkeys->basic.n_proto == htons(ETH_P_IPV6) &&
bp->hwrm_spec_code < 0x10601) {
rc = -EPROTONOSUPPORT;
goto err_free;
}
flags = fkeys->control.flags;
if (((flags & FLOW_DIS_ENCAPSULATION) &&
bp->hwrm_spec_code < 0x10601) || (flags & FLOW_DIS_IS_FRAGMENT)) {
rc = -EPROTONOSUPPORT;
goto err_free;
}
memcpy(new_fltr->dst_mac_addr, eth->h_dest, ETH_ALEN);
memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN);
idx = skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK;
head = &bp->ntp_fltr_hash_tbl[idx];
rcu_read_lock();
hlist_for_each_entry_rcu(fltr, head, hash) {
if (bnxt_fltr_match(fltr, new_fltr)) {
rcu_read_unlock();
rc = 0;
goto err_free;
}
}
rcu_read_unlock();
spin_lock_bh(&bp->ntp_fltr_lock);
bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap,
BNXT_NTP_FLTR_MAX_FLTR, 0);
if (bit_id < 0) {
spin_unlock_bh(&bp->ntp_fltr_lock);
rc = -ENOMEM;
goto err_free;
}
new_fltr->sw_id = (u16)bit_id;
new_fltr->flow_id = flow_id;
new_fltr->l2_fltr_idx = l2_idx;
new_fltr->rxq = rxq_index;
hlist_add_head_rcu(&new_fltr->hash, head);
bp->ntp_fltr_count++;
spin_unlock_bh(&bp->ntp_fltr_lock);
set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event);
bnxt_queue_sp_work(bp);
return new_fltr->sw_id;
err_free:
kfree(new_fltr);
return rc;
}
static void bnxt_cfg_ntp_filters(struct bnxt *bp)
{
int i;
for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
struct hlist_head *head;
struct hlist_node *tmp;
struct bnxt_ntuple_filter *fltr;
int rc;
head = &bp->ntp_fltr_hash_tbl[i];
hlist_for_each_entry_safe(fltr, tmp, head, hash) {
bool del = false;
if (test_bit(BNXT_FLTR_VALID, &fltr->state)) {
if (rps_may_expire_flow(bp->dev, fltr->rxq,
fltr->flow_id,
fltr->sw_id)) {
bnxt_hwrm_cfa_ntuple_filter_free(bp,
fltr);
del = true;
}
} else {
rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp,
fltr);
if (rc)
del = true;
else
set_bit(BNXT_FLTR_VALID, &fltr->state);
}
if (del) {
spin_lock_bh(&bp->ntp_fltr_lock);
hlist_del_rcu(&fltr->hash);
bp->ntp_fltr_count--;
spin_unlock_bh(&bp->ntp_fltr_lock);
synchronize_rcu();
clear_bit(fltr->sw_id, bp->ntp_fltr_bmap);
kfree(fltr);
}
}
}
if (test_and_clear_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event))
netdev_info(bp->dev, "Receive PF driver unload event!\n");
}
#else
static void bnxt_cfg_ntp_filters(struct bnxt *bp)
{
}
#endif /* CONFIG_RFS_ACCEL */
static int bnxt_udp_tunnel_sync(struct net_device *netdev, unsigned int table)
{
struct bnxt *bp = netdev_priv(netdev);
struct udp_tunnel_info ti;
unsigned int cmd;
udp_tunnel_nic_get_port(netdev, table, 0, &ti);
if (ti.type == UDP_TUNNEL_TYPE_VXLAN)
cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN;
else
cmd = TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE;
if (ti.port)
return bnxt_hwrm_tunnel_dst_port_alloc(bp, ti.port, cmd);
return bnxt_hwrm_tunnel_dst_port_free(bp, cmd);
}
static const struct udp_tunnel_nic_info bnxt_udp_tunnels = {
.sync_table = bnxt_udp_tunnel_sync,
.flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP |
UDP_TUNNEL_NIC_INFO_OPEN_ONLY,
.tables = {
{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, },
},
};
static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u32 filter_mask,
int nlflags)
{
struct bnxt *bp = netdev_priv(dev);
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bp->br_mode, 0, 0,
nlflags, filter_mask, NULL);
}
static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
u16 flags, struct netlink_ext_ack *extack)
{
struct bnxt *bp = netdev_priv(dev);
struct nlattr *attr, *br_spec;
int rem, rc = 0;
if (bp->hwrm_spec_code < 0x10708 || !BNXT_SINGLE_PF(bp))
return -EOPNOTSUPP;
br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
if (!br_spec)
return -EINVAL;
nla_for_each_nested(attr, br_spec, rem) {
u16 mode;
if (nla_type(attr) != IFLA_BRIDGE_MODE)
continue;
if (nla_len(attr) < sizeof(mode))
return -EINVAL;
mode = nla_get_u16(attr);
if (mode == bp->br_mode)
break;
rc = bnxt_hwrm_set_br_mode(bp, mode);
if (!rc)
bp->br_mode = mode;
break;
}
return rc;
}
int bnxt_get_port_parent_id(struct net_device *dev,
struct netdev_phys_item_id *ppid)
{
struct bnxt *bp = netdev_priv(dev);
if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)
return -EOPNOTSUPP;
/* The PF and it's VF-reps only support the switchdev framework */
if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_DSN_VALID))
return -EOPNOTSUPP;
ppid->id_len = sizeof(bp->dsn);
memcpy(ppid->id, bp->dsn, ppid->id_len);
return 0;
}
static struct devlink_port *bnxt_get_devlink_port(struct net_device *dev)
{
struct bnxt *bp = netdev_priv(dev);
return &bp->dl_port;
}
static const struct net_device_ops bnxt_netdev_ops = {
.ndo_open = bnxt_open,
.ndo_start_xmit = bnxt_start_xmit,
.ndo_stop = bnxt_close,
.ndo_get_stats64 = bnxt_get_stats64,
.ndo_set_rx_mode = bnxt_set_rx_mode,
.ndo_eth_ioctl = bnxt_ioctl,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = bnxt_change_mac_addr,
.ndo_change_mtu = bnxt_change_mtu,
.ndo_fix_features = bnxt_fix_features,
.ndo_set_features = bnxt_set_features,
.ndo_features_check = bnxt_features_check,
.ndo_tx_timeout = bnxt_tx_timeout,
#ifdef CONFIG_BNXT_SRIOV
.ndo_get_vf_config = bnxt_get_vf_config,
.ndo_set_vf_mac = bnxt_set_vf_mac,
.ndo_set_vf_vlan = bnxt_set_vf_vlan,
.ndo_set_vf_rate = bnxt_set_vf_bw,
.ndo_set_vf_link_state = bnxt_set_vf_link_state,
.ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk,
.ndo_set_vf_trust = bnxt_set_vf_trust,
#endif
.ndo_setup_tc = bnxt_setup_tc,
#ifdef CONFIG_RFS_ACCEL
.ndo_rx_flow_steer = bnxt_rx_flow_steer,
#endif
.ndo_bpf = bnxt_xdp,
.ndo_xdp_xmit = bnxt_xdp_xmit,
.ndo_bridge_getlink = bnxt_bridge_getlink,
.ndo_bridge_setlink = bnxt_bridge_setlink,
.ndo_get_devlink_port = bnxt_get_devlink_port,
};
static void bnxt_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnxt *bp = netdev_priv(dev);
if (BNXT_PF(bp))
bnxt_sriov_disable(bp);
if (BNXT_PF(bp))
devlink_port_type_clear(&bp->dl_port);
bnxt_ptp_clear(bp);
pci_disable_pcie_error_reporting(pdev);
unregister_netdev(dev);
clear_bit(BNXT_STATE_IN_FW_RESET, &bp->state);
/* Flush any pending tasks */
cancel_work_sync(&bp->sp_task);
cancel_delayed_work_sync(&bp->fw_reset_task);
bp->sp_event = 0;
bnxt_dl_fw_reporters_destroy(bp);
bnxt_dl_unregister(bp);
bnxt_shutdown_tc(bp);
bnxt_clear_int_mode(bp);
bnxt_hwrm_func_drv_unrgtr(bp);
bnxt_free_hwrm_resources(bp);
bnxt_ethtool_free(bp);
bnxt_dcb_free(bp);
kfree(bp->edev);
bp->edev = NULL;
kfree(bp->ptp_cfg);
bp->ptp_cfg = NULL;
kfree(bp->fw_health);
bp->fw_health = NULL;
bnxt_cleanup_pci(bp);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
kfree(bp->rss_indir_tbl);
bp->rss_indir_tbl = NULL;
bnxt_free_port_stats(bp);
free_netdev(dev);
}
static int bnxt_probe_phy(struct bnxt *bp, bool fw_dflt)
{
int rc = 0;
struct bnxt_link_info *link_info = &bp->link_info;
bp->phy_flags = 0;
rc = bnxt_hwrm_phy_qcaps(bp);
if (rc) {
netdev_err(bp->dev, "Probe phy can't get phy capabilities (rc: %x)\n",
rc);
return rc;
}
if (bp->phy_flags & BNXT_PHY_FL_NO_FCS)
bp->dev->priv_flags |= IFF_SUPP_NOFCS;
else
bp->dev->priv_flags &= ~IFF_SUPP_NOFCS;
if (!fw_dflt)
return 0;
mutex_lock(&bp->link_lock);
rc = bnxt_update_link(bp, false);
if (rc) {
mutex_unlock(&bp->link_lock);
netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n",
rc);
return rc;
}
/* Older firmware does not have supported_auto_speeds, so assume
* that all supported speeds can be autonegotiated.
*/
if (link_info->auto_link_speeds && !link_info->support_auto_speeds)
link_info->support_auto_speeds = link_info->support_speeds;
bnxt_init_ethtool_link_settings(bp);
mutex_unlock(&bp->link_lock);
return 0;
}
static int bnxt_get_max_irq(struct pci_dev *pdev)
{
u16 ctrl;
if (!pdev->msix_cap)
return 1;
pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl);
return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
}
static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx,
int *max_cp)
{
struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
int max_ring_grps = 0, max_irq;
*max_tx = hw_resc->max_tx_rings;
*max_rx = hw_resc->max_rx_rings;
*max_cp = bnxt_get_max_func_cp_rings_for_en(bp);
max_irq = min_t(int, bnxt_get_max_func_irqs(bp) -
bnxt_get_ulp_msix_num(bp),
hw_resc->max_stat_ctxs - bnxt_get_ulp_stat_ctxs(bp));
if (!(bp->flags & BNXT_FLAG_CHIP_P5))
*max_cp = min_t(int, *max_cp, max_irq);
max_ring_grps = hw_resc->max_hw_ring_grps;
if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) {
*max_cp -= 1;
*max_rx -= 2;
}
if (bp->flags & BNXT_FLAG_AGG_RINGS)
*max_rx >>= 1;
if (bp->flags & BNXT_FLAG_CHIP_P5) {
bnxt_trim_rings(bp, max_rx, max_tx, *max_cp, false);
/* On P5 chips, max_cp output param should be available NQs */
*max_cp = max_irq;
}
*max_rx = min_t(int, *max_rx, max_ring_grps);
}
int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared)
{
int rx, tx, cp;
_bnxt_get_max_rings(bp, &rx, &tx, &cp);
*max_rx = rx;
*max_tx = tx;
if (!rx || !tx || !cp)
return -ENOMEM;
return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared);
}
static int bnxt_get_dflt_rings(struct bnxt *bp, int *max_rx, int *max_tx,
bool shared)
{
int rc;
rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared);
if (rc && (bp->flags & BNXT_FLAG_AGG_RINGS)) {
/* Not enough rings, try disabling agg rings. */
bp->flags &= ~BNXT_FLAG_AGG_RINGS;
rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared);
if (rc) {
/* set BNXT_FLAG_AGG_RINGS back for consistency */
bp->flags |= BNXT_FLAG_AGG_RINGS;
return rc;
}
bp->flags |= BNXT_FLAG_NO_AGG_RINGS;
bp->dev->hw_features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW);
bp->dev->features &= ~(NETIF_F_LRO | NETIF_F_GRO_HW);
bnxt_set_ring_params(bp);
}
if (bp->flags & BNXT_FLAG_ROCE_CAP) {
int max_cp, max_stat, max_irq;
/* Reserve minimum resources for RoCE */
max_cp = bnxt_get_max_func_cp_rings(bp);
max_stat = bnxt_get_max_func_stat_ctxs(bp);
max_irq = bnxt_get_max_func_irqs(bp);
if (max_cp <= BNXT_MIN_ROCE_CP_RINGS ||
max_irq <= BNXT_MIN_ROCE_CP_RINGS ||
max_stat <= BNXT_MIN_ROCE_STAT_CTXS)
return 0;
max_cp -= BNXT_MIN_ROCE_CP_RINGS;
max_irq -= BNXT_MIN_ROCE_CP_RINGS;
max_stat -= BNXT_MIN_ROCE_STAT_CTXS;
max_cp = min_t(int, max_cp, max_irq);
max_cp = min_t(int, max_cp, max_stat);
rc = bnxt_trim_rings(bp, max_rx, max_tx, max_cp, shared);
if (rc)
rc = 0;
}
return rc;
}
/* In initial default shared ring setting, each shared ring must have a
* RX/TX ring pair.
*/
static void bnxt_trim_dflt_sh_rings(struct bnxt *bp)
{
bp->cp_nr_rings = min_t(int, bp->tx_nr_rings_per_tc, bp->rx_nr_rings);
bp->rx_nr_rings = bp->cp_nr_rings;
bp->tx_nr_rings_per_tc = bp->cp_nr_rings;
bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
}
static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh)
{
int dflt_rings, max_rx_rings, max_tx_rings, rc;
if (!bnxt_can_reserve_rings(bp))
return 0;
if (sh)
bp->flags |= BNXT_FLAG_SHARED_RINGS;
dflt_rings = is_kdump_kernel() ? 1 : netif_get_num_default_rss_queues();
/* Reduce default rings on multi-port cards so that total default
* rings do not exceed CPU count.
*/
if (bp->port_count > 1) {
int max_rings =
max_t(int, num_online_cpus() / bp->port_count, 1);
dflt_rings = min_t(int, dflt_rings, max_rings);
}
rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh);
if (rc)
return rc;
bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings);
bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings);
if (sh)
bnxt_trim_dflt_sh_rings(bp);
else
bp->cp_nr_rings = bp->tx_nr_rings_per_tc + bp->rx_nr_rings;
bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
rc = __bnxt_reserve_rings(bp);
if (rc && rc != -ENODEV)
netdev_warn(bp->dev, "Unable to reserve tx rings\n");
bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
if (sh)
bnxt_trim_dflt_sh_rings(bp);
/* Rings may have been trimmed, re-reserve the trimmed rings. */
if (bnxt_need_reserve_rings(bp)) {
rc = __bnxt_reserve_rings(bp);
if (rc && rc != -ENODEV)
netdev_warn(bp->dev, "2nd rings reservation failed.\n");
bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
}
if (BNXT_CHIP_TYPE_NITRO_A0(bp)) {
bp->rx_nr_rings++;
bp->cp_nr_rings++;
}
if (rc) {
bp->tx_nr_rings = 0;
bp->rx_nr_rings = 0;
}
return rc;
}
static int bnxt_init_dflt_ring_mode(struct bnxt *bp)
{
int rc;
if (bp->tx_nr_rings)
return 0;
bnxt_ulp_irq_stop(bp);
bnxt_clear_int_mode(bp);
rc = bnxt_set_dflt_rings(bp, true);
if (rc) {
if (BNXT_VF(bp) && rc == -ENODEV)
netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n");
else
netdev_err(bp->dev, "Not enough rings available.\n");
goto init_dflt_ring_err;
}
rc = bnxt_init_int_mode(bp);
if (rc)
goto init_dflt_ring_err;
bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
bnxt_set_dflt_rfs(bp);
init_dflt_ring_err:
bnxt_ulp_irq_restart(bp, rc);
return rc;
}
int bnxt_restore_pf_fw_resources(struct bnxt *bp)
{
int rc;
ASSERT_RTNL();
bnxt_hwrm_func_qcaps(bp);
if (netif_running(bp->dev))
__bnxt_close_nic(bp, true, false);
bnxt_ulp_irq_stop(bp);
bnxt_clear_int_mode(bp);
rc = bnxt_init_int_mode(bp);
bnxt_ulp_irq_restart(bp, rc);
if (netif_running(bp->dev)) {
if (rc)
dev_close(bp->dev);
else
rc = bnxt_open_nic(bp, true, false);
}
return rc;
}
static int bnxt_init_mac_addr(struct bnxt *bp)
{
int rc = 0;
if (BNXT_PF(bp)) {
eth_hw_addr_set(bp->dev, bp->pf.mac_addr);
} else {
#ifdef CONFIG_BNXT_SRIOV
struct bnxt_vf_info *vf = &bp->vf;
bool strict_approval = true;
if (is_valid_ether_addr(vf->mac_addr)) {
/* overwrite netdev dev_addr with admin VF MAC */
eth_hw_addr_set(bp->dev, vf->mac_addr);
/* Older PF driver or firmware may not approve this
* correctly.
*/
strict_approval = false;
} else {
eth_hw_addr_random(bp->dev);
}
rc = bnxt_approve_mac(bp, bp->dev->dev_addr, strict_approval);
#endif
}
return rc;
}
static void bnxt_vpd_read_info(struct bnxt *bp)
{
struct pci_dev *pdev = bp->pdev;
unsigned int vpd_size, kw_len;
int pos, size;
u8 *vpd_data;
vpd_data = pci_vpd_alloc(pdev, &vpd_size);
if (IS_ERR(vpd_data)) {
pci_warn(pdev, "Unable to read VPD\n");
return;
}
pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size,
PCI_VPD_RO_KEYWORD_PARTNO, &kw_len);
if (pos < 0)
goto read_sn;
size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1);
memcpy(bp->board_partno, &vpd_data[pos], size);
read_sn:
pos = pci_vpd_find_ro_info_keyword(vpd_data, vpd_size,
PCI_VPD_RO_KEYWORD_SERIALNO,
&kw_len);
if (pos < 0)
goto exit;
size = min_t(int, kw_len, BNXT_VPD_FLD_LEN - 1);
memcpy(bp->board_serialno, &vpd_data[pos], size);
exit:
kfree(vpd_data);
}
static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[])
{
struct pci_dev *pdev = bp->pdev;
u64 qword;
qword = pci_get_dsn(pdev);
if (!qword) {
netdev_info(bp->dev, "Unable to read adapter's DSN\n");
return -EOPNOTSUPP;
}
put_unaligned_le64(qword, dsn);
bp->flags |= BNXT_FLAG_DSN_VALID;
return 0;
}
static int bnxt_map_db_bar(struct bnxt *bp)
{
if (!bp->db_size)
return -ENODEV;
bp->bar1 = pci_iomap(bp->pdev, 2, bp->db_size);
if (!bp->bar1)
return -ENOMEM;
return 0;
}
void bnxt_print_device_info(struct bnxt *bp)
{
netdev_info(bp->dev, "%s found at mem %lx, node addr %pM\n",
board_info[bp->board_idx].name,
(long)pci_resource_start(bp->pdev, 0), bp->dev->dev_addr);
pcie_print_link_status(bp->pdev);
}
static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct net_device *dev;
struct bnxt *bp;
int rc, max_irqs;
if (pci_is_bridge(pdev))
return -ENODEV;
/* Clear any pending DMA transactions from crash kernel
* while loading driver in capture kernel.
*/
if (is_kdump_kernel()) {
pci_clear_master(pdev);
pcie_flr(pdev);
}
max_irqs = bnxt_get_max_irq(pdev);
dev = alloc_etherdev_mq(sizeof(*bp), max_irqs);
if (!dev)
return -ENOMEM;
bp = netdev_priv(dev);
bp->board_idx = ent->driver_data;
bp->msg_enable = BNXT_DEF_MSG_ENABLE;
bnxt_set_max_func_irqs(bp, max_irqs);
if (bnxt_vf_pciid(bp->board_idx))
bp->flags |= BNXT_FLAG_VF;
if (pdev->msix_cap)
bp->flags |= BNXT_FLAG_MSIX_CAP;
rc = bnxt_init_board(pdev, dev);
if (rc < 0)
goto init_err_free;
dev->netdev_ops = &bnxt_netdev_ops;
dev->watchdog_timeo = BNXT_TX_TIMEOUT;
dev->ethtool_ops = &bnxt_ethtool_ops;
pci_set_drvdata(pdev, dev);
rc = bnxt_alloc_hwrm_resources(bp);
if (rc)
goto init_err_pci_clean;
mutex_init(&bp->hwrm_cmd_lock);
mutex_init(&bp->link_lock);
rc = bnxt_fw_init_one_p1(bp);
if (rc)
goto init_err_pci_clean;
if (BNXT_PF(bp))
bnxt_vpd_read_info(bp);
if (BNXT_CHIP_P5(bp)) {
bp->flags |= BNXT_FLAG_CHIP_P5;
if (BNXT_CHIP_SR2(bp))
bp->flags |= BNXT_FLAG_CHIP_SR2;
}
rc = bnxt_alloc_rss_indir_tbl(bp);
if (rc)
goto init_err_pci_clean;
rc = bnxt_fw_init_one_p2(bp);
if (rc)
goto init_err_pci_clean;
rc = bnxt_map_db_bar(bp);
if (rc) {
dev_err(&pdev->dev, "Cannot map doorbell BAR rc = %d, aborting\n",
rc);
goto init_err_pci_clean;
}
dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
NETIF_F_TSO | NETIF_F_TSO6 |
NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
NETIF_F_GSO_IPXIP4 |
NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM |
NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH |
NETIF_F_RXCSUM | NETIF_F_GRO;
if (BNXT_SUPPORTS_TPA(bp))
dev->hw_features |= NETIF_F_LRO;
dev->hw_enc_features =
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
NETIF_F_TSO | NETIF_F_TSO6 |
NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM |
NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL;
dev->udp_tunnel_nic_info = &bnxt_udp_tunnels;
dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM |
NETIF_F_GSO_GRE_CSUM;
dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA;
if (bp->fw_cap & BNXT_FW_CAP_VLAN_RX_STRIP)
dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_RX;
if (bp->fw_cap & BNXT_FW_CAP_VLAN_TX_INSERT)
dev->hw_features |= BNXT_HW_FEATURE_VLAN_ALL_TX;
if (BNXT_SUPPORTS_TPA(bp))
dev->hw_features |= NETIF_F_GRO_HW;
dev->features |= dev->hw_features | NETIF_F_HIGHDMA;
if (dev->features & NETIF_F_GRO_HW)
dev->features &= ~NETIF_F_LRO;
dev->priv_flags |= IFF_UNICAST_FLT;
#ifdef CONFIG_BNXT_SRIOV
init_waitqueue_head(&bp->sriov_cfg_wait);
#endif
if (BNXT_SUPPORTS_TPA(bp)) {
bp->gro_func = bnxt_gro_func_5730x;
if (BNXT_CHIP_P4(bp))
bp->gro_func = bnxt_gro_func_5731x;
else if (BNXT_CHIP_P5(bp))
bp->gro_func = bnxt_gro_func_5750x;
}
if (!BNXT_CHIP_P4_PLUS(bp))
bp->flags |= BNXT_FLAG_DOUBLE_DB;
rc = bnxt_init_mac_addr(bp);
if (rc) {
dev_err(&pdev->dev, "Unable to initialize mac address.\n");
rc = -EADDRNOTAVAIL;
goto init_err_pci_clean;
}
if (BNXT_PF(bp)) {
/* Read the adapter's DSN to use as the eswitch switch_id */
rc = bnxt_pcie_dsn_get(bp, bp->dsn);
}
/* MTU range: 60 - FW defined max */
dev->min_mtu = ETH_ZLEN;
dev->max_mtu = bp->max_mtu;
rc = bnxt_probe_phy(bp, true);
if (rc)
goto init_err_pci_clean;
bnxt_set_rx_skb_mode(bp, false);
bnxt_set_tpa_flags(bp);
bnxt_set_ring_params(bp);
rc = bnxt_set_dflt_rings(bp, true);
if (rc) {
if (BNXT_VF(bp) && rc == -ENODEV) {
netdev_err(bp->dev, "Cannot configure VF rings while PF is unavailable.\n");
} else {
netdev_err(bp->dev, "Not enough rings available.\n");
rc = -ENOMEM;
}
goto init_err_pci_clean;
}
bnxt_fw_init_one_p3(bp);
bnxt_init_dflt_coal(bp);
if (dev->hw_features & BNXT_HW_FEATURE_VLAN_ALL_RX)
bp->flags |= BNXT_FLAG_STRIP_VLAN;
rc = bnxt_init_int_mode(bp);
if (rc)
goto init_err_pci_clean;
/* No TC has been set yet and rings may have been trimmed due to
* limited MSIX, so we re-initialize the TX rings per TC.
*/
bp->tx_nr_rings_per_tc = bp->tx_nr_rings;
if (BNXT_PF(bp)) {
if (!bnxt_pf_wq) {
bnxt_pf_wq =
create_singlethread_workqueue("bnxt_pf_wq");
if (!bnxt_pf_wq) {
dev_err(&pdev->dev, "Unable to create workqueue.\n");
rc = -ENOMEM;
goto init_err_pci_clean;
}
}
rc = bnxt_init_tc(bp);
if (rc)
netdev_err(dev, "Failed to initialize TC flower offload, err = %d.\n",
rc);
}
bnxt_inv_fw_health_reg(bp);
rc = bnxt_dl_register(bp);
if (rc)
goto init_err_dl;
rc = register_netdev(dev);
if (rc)
goto init_err_cleanup;
if (BNXT_PF(bp))
devlink_port_type_eth_set(&bp->dl_port, bp->dev);
bnxt_dl_fw_reporters_create(bp);
bnxt_print_device_info(bp);
pci_save_state(pdev);
return 0;
init_err_cleanup:
bnxt_dl_unregister(bp);
init_err_dl:
bnxt_shutdown_tc(bp);
bnxt_clear_int_mode(bp);
init_err_pci_clean:
bnxt_hwrm_func_drv_unrgtr(bp);
bnxt_free_hwrm_resources(bp);
bnxt_ethtool_free(bp);
bnxt_ptp_clear(bp);
kfree(bp->ptp_cfg);
bp->ptp_cfg = NULL;
kfree(bp->fw_health);
bp->fw_health = NULL;
bnxt_cleanup_pci(bp);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
kfree(bp->rss_indir_tbl);
bp->rss_indir_tbl = NULL;
init_err_free:
free_netdev(dev);
return rc;
}
static void bnxt_shutdown(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnxt *bp;
if (!dev)
return;
rtnl_lock();
bp = netdev_priv(dev);
if (!bp)
goto shutdown_exit;
if (netif_running(dev))
dev_close(dev);
bnxt_ulp_shutdown(bp);
bnxt_clear_int_mode(bp);
pci_disable_device(pdev);
if (system_state == SYSTEM_POWER_OFF) {
pci_wake_from_d3(pdev, bp->wol);
pci_set_power_state(pdev, PCI_D3hot);
}
shutdown_exit:
rtnl_unlock();
}
#ifdef CONFIG_PM_SLEEP
static int bnxt_suspend(struct device *device)
{
struct net_device *dev = dev_get_drvdata(device);
struct bnxt *bp = netdev_priv(dev);
int rc = 0;
rtnl_lock();
bnxt_ulp_stop(bp);
if (netif_running(dev)) {
netif_device_detach(dev);
rc = bnxt_close(dev);
}
bnxt_hwrm_func_drv_unrgtr(bp);
pci_disable_device(bp->pdev);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
rtnl_unlock();
return rc;
}
static int bnxt_resume(struct device *device)
{
struct net_device *dev = dev_get_drvdata(device);
struct bnxt *bp = netdev_priv(dev);
int rc = 0;
rtnl_lock();
rc = pci_enable_device(bp->pdev);
if (rc) {
netdev_err(dev, "Cannot re-enable PCI device during resume, err = %d\n",
rc);
goto resume_exit;
}
pci_set_master(bp->pdev);
if (bnxt_hwrm_ver_get(bp)) {
rc = -ENODEV;
goto resume_exit;
}
rc = bnxt_hwrm_func_reset(bp);
if (rc) {
rc = -EBUSY;
goto resume_exit;
}
rc = bnxt_hwrm_func_qcaps(bp);
if (rc)
goto resume_exit;
if (bnxt_hwrm_func_drv_rgtr(bp, NULL, 0, false)) {
rc = -ENODEV;
goto resume_exit;
}
bnxt_get_wol_settings(bp);
if (netif_running(dev)) {
rc = bnxt_open(dev);
if (!rc)
netif_device_attach(dev);
}
resume_exit:
bnxt_ulp_start(bp, rc);
if (!rc)
bnxt_reenable_sriov(bp);
rtnl_unlock();
return rc;
}
static SIMPLE_DEV_PM_OPS(bnxt_pm_ops, bnxt_suspend, bnxt_resume);
#define BNXT_PM_OPS (&bnxt_pm_ops)
#else
#define BNXT_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
/**
* bnxt_io_error_detected - called when PCI error is detected
* @pdev: Pointer to PCI device
* @state: The current pci connection state
*
* This function is called after a PCI bus error affecting
* this device has been detected.
*/
static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct bnxt *bp = netdev_priv(netdev);
netdev_info(netdev, "PCI I/O error detected\n");
rtnl_lock();
netif_device_detach(netdev);
bnxt_ulp_stop(bp);
if (state == pci_channel_io_perm_failure) {
rtnl_unlock();
return PCI_ERS_RESULT_DISCONNECT;
}
if (state == pci_channel_io_frozen)
set_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN, &bp->state);
if (netif_running(netdev))
bnxt_close(netdev);
if (pci_is_enabled(pdev))
pci_disable_device(pdev);
bnxt_free_ctx_mem(bp);
kfree(bp->ctx);
bp->ctx = NULL;
rtnl_unlock();
/* Request a slot slot reset. */
return PCI_ERS_RESULT_NEED_RESET;
}
/**
* bnxt_io_slot_reset - called after the pci bus has been reset.
* @pdev: Pointer to PCI device
*
* Restart the card from scratch, as if from a cold-boot.
* At this point, the card has exprienced a hard reset,
* followed by fixups by BIOS, and has its config space
* set up identically to what it was at cold boot.
*/
static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev)
{
pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;
struct net_device *netdev = pci_get_drvdata(pdev);
struct bnxt *bp = netdev_priv(netdev);
int err = 0, off;
netdev_info(bp->dev, "PCI Slot Reset\n");
rtnl_lock();
if (pci_enable_device(pdev)) {
dev_err(&pdev->dev,
"Cannot re-enable PCI device after reset.\n");
} else {
pci_set_master(pdev);
/* Upon fatal error, our device internal logic that latches to
* BAR value is getting reset and will restore only upon
* rewritting the BARs.
*
* As pci_restore_state() does not re-write the BARs if the
* value is same as saved value earlier, driver needs to
* write the BARs to 0 to force restore, in case of fatal error.
*/
if (test_and_clear_bit(BNXT_STATE_PCI_CHANNEL_IO_FROZEN,
&bp->state)) {
for (off = PCI_BASE_ADDRESS_0;
off <= PCI_BASE_ADDRESS_5; off += 4)
pci_write_config_dword(bp->pdev, off, 0);
}
pci_restore_state(pdev);
pci_save_state(pdev);
err = bnxt_hwrm_func_reset(bp);
if (!err)
result = PCI_ERS_RESULT_RECOVERED;
}
rtnl_unlock();
return result;
}
/**
* bnxt_io_resume - called when traffic can start flowing again.
* @pdev: Pointer to PCI device
*
* This callback is called when the error recovery driver tells
* us that its OK to resume normal operation.
*/
static void bnxt_io_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct bnxt *bp = netdev_priv(netdev);
int err;
netdev_info(bp->dev, "PCI Slot Resume\n");
rtnl_lock();
err = bnxt_hwrm_func_qcaps(bp);
if (!err && netif_running(netdev))
err = bnxt_open(netdev);
bnxt_ulp_start(bp, err);
if (!err) {
bnxt_reenable_sriov(bp);
netif_device_attach(netdev);
}
rtnl_unlock();
}
static const struct pci_error_handlers bnxt_err_handler = {
.error_detected = bnxt_io_error_detected,
.slot_reset = bnxt_io_slot_reset,
.resume = bnxt_io_resume
};
static struct pci_driver bnxt_pci_driver = {
.name = DRV_MODULE_NAME,
.id_table = bnxt_pci_tbl,
.probe = bnxt_init_one,
.remove = bnxt_remove_one,
.shutdown = bnxt_shutdown,
.driver.pm = BNXT_PM_OPS,
.err_handler = &bnxt_err_handler,
#if defined(CONFIG_BNXT_SRIOV)
.sriov_configure = bnxt_sriov_configure,
#endif
};
static int __init bnxt_init(void)
{
bnxt_debug_init();
return pci_register_driver(&bnxt_pci_driver);
}
static void __exit bnxt_exit(void)
{
pci_unregister_driver(&bnxt_pci_driver);
if (bnxt_pf_wq)
destroy_workqueue(bnxt_pf_wq);
bnxt_debug_exit();
}
module_init(bnxt_init);
module_exit(bnxt_exit);