diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/Makefile | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.c | 1646 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.h | 84 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 1230 |
5 files changed, 2971 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/Kconfig b/drivers/net/ethernet/hisilicon/Kconfig index aae2c479a7d5..165b5a8aa2ea 100644 --- a/drivers/net/ethernet/hisilicon/Kconfig +++ b/drivers/net/ethernet/hisilicon/Kconfig @@ -55,4 +55,12 @@ config HNS_DSAF acceleration engine support. The engine is used in Hisilicon hip05, Hi1610 and further ICT SoC +config HNS_ENET + tristate "Hisilicon HNS Ethernet Device Support" + select PHYLIB + select HNS + ---help--- + This selects the general ethernet driver for HNS. This module make + use of any HNS AE driver, such as HNS_DSAF + endif # NET_VENDOR_HISILICON diff --git a/drivers/net/ethernet/hisilicon/hns/Makefile b/drivers/net/ethernet/hisilicon/hns/Makefile index 0516af7e1a19..6010c83e38d8 100644 --- a/drivers/net/ethernet/hisilicon/hns/Makefile +++ b/drivers/net/ethernet/hisilicon/hns/Makefile @@ -7,3 +7,6 @@ obj-$(CONFIG_HNS) += hnae.o obj-$(CONFIG_HNS_DSAF) += hns_dsaf.o hns_dsaf-objs = hns_ae_adapt.o hns_dsaf_gmac.o hns_dsaf_mac.o hns_dsaf_misc.o \ hns_dsaf_main.o hns_dsaf_ppe.o hns_dsaf_rcb.o hns_dsaf_xgmac.o + +obj-$(CONFIG_HNS_ENET) += hns_enet_drv.o +hns_enet_drv-objs = hns_enet.o hns_ethtool.o diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c new file mode 100644 index 000000000000..0713ced120b6 --- /dev/null +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -0,0 +1,1646 @@ +/* + * Copyright (c) 2014-2015 Hisilicon 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/clk.h> +#include <linux/cpumask.h> +#include <linux/etherdevice.h> +#include <linux/if_vlan.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ip.h> +#include <linux/ipv6.h> +#include <linux/module.h> +#include <linux/phy.h> +#include <linux/platform_device.h> +#include <linux/skbuff.h> + +#include "hnae.h" +#include "hns_enet.h" + +#define NIC_MAX_Q_PER_VF 16 +#define HNS_NIC_TX_TIMEOUT (5 * HZ) + +#define SERVICE_TIMER_HZ (1 * HZ) + +#define NIC_TX_CLEAN_MAX_NUM 256 +#define NIC_RX_CLEAN_MAX_NUM 64 + +#define RCB_ERR_PRINT_CYCLE 1000 + +#define RCB_IRQ_NOT_INITED 0 +#define RCB_IRQ_INITED 1 + +static void fill_desc(struct hnae_ring *ring, void *priv, + int size, dma_addr_t dma, int frag_end, + int buf_num, enum hns_desc_type type) +{ + struct hnae_desc *desc = &ring->desc[ring->next_to_use]; + struct hnae_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use]; + struct sk_buff *skb; + __be16 protocol; + u32 ip_offset; + u32 asid_bufnum_pid = 0; + u32 flag_ipoffset = 0; + + desc_cb->priv = priv; + desc_cb->length = size; + desc_cb->dma = dma; + desc_cb->type = type; + + desc->addr = cpu_to_le64(dma); + desc->tx.send_size = cpu_to_le16((u16)size); + + /*config bd buffer end */ + flag_ipoffset |= 1 << HNS_TXD_VLD_B; + + asid_bufnum_pid |= buf_num << HNS_TXD_BUFNUM_S; + + if (type == DESC_TYPE_SKB) { + skb = (struct sk_buff *)priv; + + if (skb->ip_summed == CHECKSUM_PARTIAL) { + protocol = skb->protocol; + ip_offset = ETH_HLEN; + + /*if it is a SW VLAN check the next protocol*/ + if (protocol == htons(ETH_P_8021Q)) { + ip_offset += VLAN_HLEN; + protocol = vlan_get_protocol(skb); + skb->protocol = protocol; + } + + if (skb->protocol == htons(ETH_P_IP)) { + flag_ipoffset |= 1 << HNS_TXD_L3CS_B; + /* check for tcp/udp header */ + flag_ipoffset |= 1 << HNS_TXD_L4CS_B; + + } else if (skb->protocol == htons(ETH_P_IPV6)) { + /* ipv6 has not l3 cs, check for L4 header */ + flag_ipoffset |= 1 << HNS_TXD_L4CS_B; + } + + flag_ipoffset |= ip_offset << HNS_TXD_IPOFFSET_S; + } + } + + flag_ipoffset |= frag_end << HNS_TXD_FE_B; + + desc->tx.asid_bufnum_pid = cpu_to_le16(asid_bufnum_pid); + desc->tx.flag_ipoffset = cpu_to_le32(flag_ipoffset); + + ring_ptr_move_fw(ring, next_to_use); +} + +static void unfill_desc(struct hnae_ring *ring) +{ + ring_ptr_move_bw(ring, next_to_use); +} + +int hns_nic_net_xmit_hw(struct net_device *ndev, + struct sk_buff *skb, + struct hns_nic_ring_data *ring_data) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct device *dev = priv->dev; + struct hnae_ring *ring = ring_data->ring; + struct netdev_queue *dev_queue; + struct skb_frag_struct *frag; + int buf_num; + dma_addr_t dma; + int size, next_to_use; + int i, j; + struct sk_buff *new_skb; + + assert(ring->max_desc_num_per_pkt <= ring->desc_num); + + /* no. of segments (plus a header) */ + buf_num = skb_shinfo(skb)->nr_frags + 1; + + if (unlikely(buf_num > ring->max_desc_num_per_pkt)) { + if (ring_space(ring) < 1) { + ring->stats.tx_busy++; + goto out_net_tx_busy; + } + + new_skb = skb_copy(skb, GFP_ATOMIC); + if (!new_skb) { + ring->stats.sw_err_cnt++; + netdev_err(ndev, "no memory to xmit!\n"); + goto out_err_tx_ok; + } + + dev_kfree_skb_any(skb); + skb = new_skb; + buf_num = 1; + assert(skb_shinfo(skb)->nr_frags == 1); + } else if (buf_num > ring_space(ring)) { + ring->stats.tx_busy++; + goto out_net_tx_busy; + } + next_to_use = ring->next_to_use; + + /* fill the first part */ + size = skb_headlen(skb); + dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE); + if (dma_mapping_error(dev, dma)) { + netdev_err(ndev, "TX head DMA map failed\n"); + ring->stats.sw_err_cnt++; + goto out_err_tx_ok; + } + fill_desc(ring, skb, size, dma, buf_num == 1 ? 1 : 0, buf_num, + DESC_TYPE_SKB); + + /* fill the fragments */ + for (i = 1; i < buf_num; i++) { + frag = &skb_shinfo(skb)->frags[i - 1]; + size = skb_frag_size(frag); + dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE); + if (dma_mapping_error(dev, dma)) { + netdev_err(ndev, "TX frag(%d) DMA map failed\n", i); + ring->stats.sw_err_cnt++; + goto out_map_frag_fail; + } + fill_desc(ring, skb_frag_page(frag), size, dma, + buf_num - 1 == i ? 1 : 0, buf_num, DESC_TYPE_PAGE); + } + + /*complete translate all packets*/ + dev_queue = netdev_get_tx_queue(ndev, skb->queue_mapping); + netdev_tx_sent_queue(dev_queue, skb->len); + + wmb(); /* commit all data before submit */ + assert(skb->queue_mapping < priv->ae_handle->q_num); + hnae_queue_xmit(priv->ae_handle->qs[skb->queue_mapping], buf_num); + ring->stats.tx_pkts++; + ring->stats.tx_bytes += skb->len; + + return NETDEV_TX_OK; + +out_map_frag_fail: + + for (j = i - 1; j > 0; j--) { + unfill_desc(ring); + next_to_use = ring->next_to_use; + dma_unmap_page(dev, ring->desc_cb[next_to_use].dma, + ring->desc_cb[next_to_use].length, + DMA_TO_DEVICE); + } + + unfill_desc(ring); + next_to_use = ring->next_to_use; + dma_unmap_single(dev, ring->desc_cb[next_to_use].dma, + ring->desc_cb[next_to_use].length, DMA_TO_DEVICE); + +out_err_tx_ok: + + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + +out_net_tx_busy: + + netif_stop_subqueue(ndev, skb->queue_mapping); + + /* Herbert's original patch had: + * smp_mb__after_netif_stop_queue(); + * but since that doesn't exist yet, just open code it. + */ + smp_mb(); + return NETDEV_TX_BUSY; +} + +/** + * hns_nic_get_headlen - determine size of header for RSC/LRO/GRO/FCOE + * @data: pointer to the start of the headers + * @max: total length of section to find headers in + * + * This function is meant to determine the length of headers that will + * be recognized by hardware for LRO, GRO, and RSC offloads. The main + * motivation of doing this is to only perform one pull for IPv4 TCP + * packets so that we can do basic things like calculating the gso_size + * based on the average data per packet. + **/ +static unsigned int hns_nic_get_headlen(unsigned char *data, u32 flag, + unsigned int max_size) +{ + unsigned char *network; + u8 hlen; + + /* this should never happen, but better safe than sorry */ + if (max_size < ETH_HLEN) + return max_size; + + /* initialize network frame pointer */ + network = data; + + /* set first protocol and move network header forward */ + network += ETH_HLEN; + + /* handle any vlan tag if present */ + if (hnae_get_field(flag, HNS_RXD_VLAN_M, HNS_RXD_VLAN_S) + == HNS_RX_FLAG_VLAN_PRESENT) { + if ((typeof(max_size))(network - data) > (max_size - VLAN_HLEN)) + return max_size; + + network += VLAN_HLEN; + } + + /* handle L3 protocols */ + if (hnae_get_field(flag, HNS_RXD_L3ID_M, HNS_RXD_L3ID_S) + == HNS_RX_FLAG_L3ID_IPV4) { + if ((typeof(max_size))(network - data) > + (max_size - sizeof(struct iphdr))) + return max_size; + + /* access ihl as a u8 to avoid unaligned access on ia64 */ + hlen = (network[0] & 0x0F) << 2; + + /* verify hlen meets minimum size requirements */ + if (hlen < sizeof(struct iphdr)) + return network - data; + + /* record next protocol if header is present */ + } else if (hnae_get_field(flag, HNS_RXD_L3ID_M, HNS_RXD_L3ID_S) + == HNS_RX_FLAG_L3ID_IPV6) { + if ((typeof(max_size))(network - data) > + (max_size - sizeof(struct ipv6hdr))) + return max_size; + + /* record next protocol */ + hlen = sizeof(struct ipv6hdr); + } else { + return network - data; + } + + /* relocate pointer to start of L4 header */ + network += hlen; + + /* finally sort out TCP/UDP */ + if (hnae_get_field(flag, HNS_RXD_L4ID_M, HNS_RXD_L4ID_S) + == HNS_RX_FLAG_L4ID_TCP) { + if ((typeof(max_size))(network - data) > + (max_size - sizeof(struct tcphdr))) + return max_size; + + /* access doff as a u8 to avoid unaligned access on ia64 */ + hlen = (network[12] & 0xF0) >> 2; + + /* verify hlen meets minimum size requirements */ + if (hlen < sizeof(struct tcphdr)) + return network - data; + + network += hlen; + } else if (hnae_get_field(flag, HNS_RXD_L4ID_M, HNS_RXD_L4ID_S) + == HNS_RX_FLAG_L4ID_UDP) { + if ((typeof(max_size))(network - data) > + (max_size - sizeof(struct udphdr))) + return max_size; + + network += sizeof(struct udphdr); + } + + /* If everything has gone correctly network should be the + * data section of the packet and will be the end of the header. + * If not then it probably represents the end of the last recognized + * header. + */ + if ((typeof(max_size))(network - data) < max_size) + return network - data; + else + return max_size; +} + +static void +hns_nic_reuse_page(struct hnae_desc_cb *desc_cb, int tsize, int last_offset) +{ + /* avoid re-using remote pages,flag default unreuse */ + if (likely(page_to_nid(desc_cb->priv) == numa_node_id())) { + /* move offset up to the next cache line */ + desc_cb->page_offset += tsize; + + if (desc_cb->page_offset <= last_offset) { + desc_cb->reuse_flag = 1; + /* bump ref count on page before it is given*/ + get_page(desc_cb->priv); + } + } +} + +static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data, + struct sk_buff **out_skb, int *out_bnum) +{ + struct hnae_ring *ring = ring_data->ring; + struct net_device *ndev = ring_data->napi.dev; + struct sk_buff *skb; + struct hnae_desc *desc; + struct hnae_desc_cb *desc_cb; + unsigned char *va; + int bnum, length, size, i, truesize, last_offset; + int pull_len; + u32 bnum_flag; + + last_offset = hnae_page_size(ring) - hnae_buf_size(ring); + desc = &ring->desc[ring->next_to_clean]; + desc_cb = &ring->desc_cb[ring->next_to_clean]; + length = le16_to_cpu(desc->rx.pkt_len); + bnum_flag = le32_to_cpu(desc->rx.ipoff_bnum_pid_flag); + bnum = hnae_get_field(bnum_flag, HNS_RXD_BUFNUM_M, HNS_RXD_BUFNUM_S); + *out_bnum = bnum; + va = (unsigned char *)desc_cb->buf + desc_cb->page_offset; + + skb = *out_skb = napi_alloc_skb(&ring_data->napi, HNS_RX_HEAD_SIZE); + if (unlikely(!skb)) { + netdev_err(ndev, "alloc rx skb fail\n"); + ring->stats.sw_err_cnt++; + return -ENOMEM; + } + + if (length <= HNS_RX_HEAD_SIZE) { + memcpy(__skb_put(skb, length), va, ALIGN(length, sizeof(long))); + + /* we can reuse buffer as-is, just make sure it is local */ + if (likely(page_to_nid(desc_cb->priv) == numa_node_id())) + desc_cb->reuse_flag = 1; + else /* this page cannot be reused so discard it */ + put_page(desc_cb->priv); + + ring_ptr_move_fw(ring, next_to_clean); + + if (unlikely(bnum != 1)) { /* check err*/ + *out_bnum = 1; + goto out_bnum_err; + } + } else { + ring->stats.seg_pkt_cnt++; + + pull_len = hns_nic_get_headlen(va, bnum_flag, HNS_RX_HEAD_SIZE); + memcpy(__skb_put(skb, pull_len), va, + ALIGN(pull_len, sizeof(long))); + + size = le16_to_cpu(desc->rx.size); + truesize = ALIGN(size, L1_CACHE_BYTES); + skb_add_rx_frag(skb, 0, desc_cb->priv, + desc_cb->page_offset + pull_len, + size - pull_len, truesize - pull_len); + + hns_nic_reuse_page(desc_cb, truesize, last_offset); + ring_ptr_move_fw(ring, next_to_clean); + + if (unlikely(bnum >= (int)MAX_SKB_FRAGS)) { /* check err*/ + *out_bnum = 1; + goto out_bnum_err; + } + for (i = 1; i < bnum; i++) { + desc = &ring->desc[ring->next_to_clean]; + desc_cb = &ring->desc_cb[ring->next_to_clean]; + size = le16_to_cpu(desc->rx.size); + truesize = ALIGN(size, L1_CACHE_BYTES); + skb_add_rx_frag(skb, i, desc_cb->priv, + desc_cb->page_offset, + size, truesize); + + hns_nic_reuse_page(desc_cb, truesize, last_offset); + ring_ptr_move_fw(ring, next_to_clean); + } + } + + /* check except process, free skb and jump the desc */ + if (unlikely((!bnum) || (bnum > ring->max_desc_num_per_pkt))) { +out_bnum_err: + *out_bnum = *out_bnum ? *out_bnum : 1; /* ntc moved,cannot 0*/ + netdev_err(ndev, "invalid bnum(%d,%d,%d,%d),%016llx,%016llx\n", + bnum, ring->max_desc_num_per_pkt, + length, (int)MAX_SKB_FRAGS, + ((u64 *)desc)[0], ((u64 *)desc)[1]); + ring->stats.err_bd_num++; + dev_kfree_skb_any(skb); + return -EDOM; + } + + bnum_flag = le32_to_cpu(desc->rx.ipoff_bnum_pid_flag); + + if (unlikely(!hnae_get_bit(bnum_flag, HNS_RXD_VLD_B))) { + netdev_err(ndev, "no valid bd,%016llx,%016llx\n", + ((u64 *)desc)[0], ((u64 *)desc)[1]); + ring->stats.non_vld_descs++; + dev_kfree_skb_any(skb); + return -EINVAL; + } + + if (unlikely((!desc->rx.pkt_len) || + hnae_get_bit(bnum_flag, HNS_RXD_DROP_B))) { + if (!(ring->stats.err_pkt_len % RCB_ERR_PRINT_CYCLE)) + netdev_dbg(ndev, + "pkt_len(%u),drop(%u),%#llx,%#llx\n", + le16_to_cpu(desc->rx.pkt_len), + hnae_get_bit(bnum_flag, HNS_RXD_DROP_B), + ((u64 *)desc)[0], ((u64 *)desc)[1]); + ring->stats.err_pkt_len++; + dev_kfree_skb_any(skb); + return -EFAULT; + } + + if (unlikely(hnae_get_bit(bnum_flag, HNS_RXD_L2E_B))) { + if (!(ring->stats.l2_err % RCB_ERR_PRINT_CYCLE)) + netdev_dbg(ndev, "L2 check err,%#llx,%#llx\n", + ((u64 *)desc)[0], ((u64 *)desc)[1]); + ring->stats.l2_err++; + dev_kfree_skb_any(skb); + return -EFAULT; + } + + ring->stats.rx_pkts++; + ring->stats.rx_bytes += skb->len; + + if (unlikely(hnae_get_bit(bnum_flag, HNS_RXD_L3E_B) || + hnae_get_bit(bnum_flag, HNS_RXD_L4E_B))) { + if (!(ring->stats.l3l4_csum_err % RCB_ERR_PRINT_CYCLE)) + netdev_dbg(ndev, + "check err(%#x),%#llx,%#llx\n", + hnae_get_bit(bnum_flag, HNS_RXD_L3E_B) | + hnae_get_bit(bnum_flag, HNS_RXD_L4E_B), + ((u64 *)desc)[0], ((u64 *)desc)[1]); + ring->stats.l3l4_csum_err++; + return 0; + } + + skb->ip_summed = CHECKSUM_UNNECESSARY; + + return 0; +} + +static void +hns_nic_alloc_rx_buffers(struct hns_nic_ring_data *ring_data, int cleand_count) +{ + int i, ret; + struct hnae_desc_cb res_cbs; + struct hnae_desc_cb *desc_cb; + struct hnae_ring *ring = ring_data->ring; + struct net_device *ndev = ring_data->napi.dev; + + for (i = 0; i < cleand_count; i++) { + desc_cb = &ring->desc_cb[ring->next_to_use]; + if (desc_cb->reuse_flag) { + ring->stats.reuse_pg_cnt++; + hnae_reuse_buffer(ring, ring->next_to_use); + } else { + ret = hnae_reserve_buffer_map(ring, &res_cbs); + if (ret) { + ring->stats.sw_err_cnt++; + netdev_err(ndev, "hnae reserve buffer map failed.\n"); + break; + } + hnae_replace_buffer(ring, ring->next_to_use, &res_cbs); + } + + ring_ptr_move_fw(ring, next_to_use); + } + + wmb(); /* make all data has been write before submit */ + writel_relaxed(i, ring->io_base + RCB_REG_HEAD); +} + +/* return error number for error or number of desc left to take + */ +static void hns_nic_rx_up_pro(struct hns_nic_ring_data *ring_data, + struct sk_buff *skb) +{ + struct net_device *ndev = ring_data->napi.dev; + + skb->protocol = eth_type_trans(skb, ndev); + (void)napi_gro_receive(&ring_data->napi, skb); + ndev->last_rx = jiffies; +} + +static int hns_nic_rx_poll_one(struct hns_nic_ring_data *ring_data, + int budget, void *v) +{ + struct hnae_ring *ring = ring_data->ring; + struct sk_buff *skb; + int num, bnum, ex_num; +#define RCB_NOF_ALLOC_RX_BUFF_ONCE 16 + int recv_pkts, recv_bds, clean_count, err; + + num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM); + rmb(); /* make sure num taken effect before the other data is touched */ + + recv_pkts = 0, recv_bds = 0, clean_count = 0; +recv: + while (recv_pkts < budget && recv_bds < num) { + /* reuse or realloc buffers*/ + if (clean_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) { + hns_nic_alloc_rx_buffers(ring_data, clean_count); + clean_count = 0; + } + + /* poll one pkg*/ + err = hns_nic_poll_rx_skb(ring_data, &skb, &bnum); + if (unlikely(!skb)) /* this fault cannot be repaired */ + break; + + recv_bds += bnum; + clean_count += bnum; + if (unlikely(err)) { /* do jump the err */ + recv_pkts++; + continue; + } + + /* do update ip stack process*/ + ((void (*)(struct hns_nic_ring_data *, struct sk_buff *))v)( + ring_data, skb); + recv_pkts++; + } + + /* make all data has been write before submit */ + if (clean_count > 0) { + hns_nic_alloc_rx_buffers(ring_data, clean_count); + clean_count = 0; + } + + if (recv_pkts < budget) { + ex_num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM); + rmb(); /*complete read rx ring bd number*/ + if (ex_num > 0) { + num += ex_num; + goto recv; + } + } + + return recv_pkts; +} + +static void hns_nic_rx_fini_pro(struct hns_nic_ring_data *ring_data) +{ + struct hnae_ring *ring = ring_data->ring; + int num = 0; + + /* for hardware bug fixed */ + num = readl_relaxed(ring->io_base + RCB_REG_FBDNUM); + + if (num > 0) { + ring_data->ring->q->handle->dev->ops->toggle_ring_irq( + ring_data->ring, 1); + + napi_schedule(&ring_data->napi); + } +} + +static inline void hns_nic_reclaim_one_desc(struct hnae_ring *ring, + int *bytes, int *pkts) +{ + struct hnae_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_clean]; + + (*pkts) += (desc_cb->type == DESC_TYPE_SKB); + (*bytes) += desc_cb->length; + /* desc_cb will be cleaned, after hnae_free_buffer_detach*/ + hnae_free_buffer_detach(ring, ring->next_to_clean); + + ring_ptr_move_fw(ring, next_to_clean); +} + +static int is_valid_clean_head(struct hnae_ring *ring, int h) +{ + int u = ring->next_to_use; + int c = ring->next_to_clean; + + if (unlikely(h > ring->desc_num)) + return 0; + + assert(u > 0 && u < ring->desc_num); + assert(c > 0 && c < ring->desc_num); + assert(u != c && h != c); /* must be checked before call this func */ + + return u > c ? (h > c && h <= u) : (h > c || h <= u); +} + +/* netif_tx_lock will turn down the performance, set only when necessary */ +#ifdef CONFIG_NET_POLL_CONTROLLER +#define NETIF_TX_LOCK(ndev) netif_tx_lock(ndev) +#define NETIF_TX_UNLOCK(ndev) netif_tx_unlock(ndev) +#else +#define NETIF_TX_LOCK(ndev) +#define NETIF_TX_UNLOCK(ndev) +#endif +/* reclaim all desc in one budget + * return error or number of desc left + */ +static int hns_nic_tx_poll_one(struct hns_nic_ring_data *ring_data, + int budget, void *v) +{ + struct hnae_ring *ring = ring_data->ring; + struct net_device *ndev = ring_data->napi.dev; + struct netdev_queue *dev_queue; + struct hns_nic_priv *priv = netdev_priv(ndev); + int head; + int bytes, pkts; + + NETIF_TX_LOCK(ndev); + + head = readl_relaxed(ring->io_base + RCB_REG_HEAD); + rmb(); /* make sure head is ready before touch any data */ + + if (is_ring_empty(ring) || head == ring->next_to_clean) { + NETIF_TX_UNLOCK(ndev); + return 0; /* no data to poll */ + } + + if (!is_valid_clean_head(ring, head)) { + netdev_err(ndev, "wrong head (%d, %d-%d)\n", head, + ring->next_to_use, ring->next_to_clean); + ring->stats.io_err_cnt++; + NETIF_TX_UNLOCK(ndev); + return -EIO; + } + + bytes = 0; + pkts = 0; + while (head != ring->next_to_clean) + hns_nic_reclaim_one_desc(ring, &bytes, &pkts); + + NETIF_TX_UNLOCK(ndev); + + dev_queue = netdev_get_tx_queue(ndev, ring_data->queue_index); + netdev_tx_completed_queue(dev_queue, pkts, bytes); + + if (unlikely(pkts && netif_carrier_ok(ndev) && + (ring_space(ring) >= ring->max_desc_num_per_pkt * 2))) { + /* Make sure that anybody stopping the queue after this + * sees the new next_to_clean. + */ + smp_mb(); + if (netif_tx_queue_stopped(dev_queue) && + !test_bit(NIC_STATE_DOWN, &priv->state)) { + netif_tx_wake_queue(dev_queue); + ring->stats.restart_queue++; + } + } + return 0; +} + +static void hns_nic_tx_fini_pro(struct hns_nic_ring_data *ring_data) +{ + struct hnae_ring *ring = ring_data->ring; + int head = ring->next_to_clean; + + /* for hardware bug fixed */ + head = readl_relaxed(ring->io_base + RCB_REG_HEAD); + + if (head != ring->next_to_clean) { + ring_data->ring->q->handle->dev->ops->toggle_ring_irq( + ring_data->ring, 1); + + napi_schedule(&ring_data->napi); + } +} + +static void hns_nic_tx_clr_all_bufs(struct hns_nic_ring_data *ring_data) +{ + struct hnae_ring *ring = ring_data->ring; + struct net_device *ndev = ring_data->napi.dev; + struct netdev_queue *dev_queue; + int head; + int bytes, pkts; + + NETIF_TX_LOCK(ndev); + + head = ring->next_to_use; /* ntu :soft setted ring position*/ + bytes = 0; + pkts = 0; + while (head != ring->next_to_clean) + hns_nic_reclaim_one_desc(ring, &bytes, &pkts); + + NETIF_TX_UNLOCK(ndev); + + dev_queue = netdev_get_tx_queue(ndev, ring_data->queue_index); + netdev_tx_reset_queue(dev_queue); +} + +static int hns_nic_common_poll(struct napi_struct *napi, int budget) +{ + struct hns_nic_ring_data *ring_data = + container_of(napi, struct hns_nic_ring_data, napi); + int clean_complete = ring_data->poll_one( + ring_data, budget, ring_data->ex_process); + + if (clean_complete >= 0 && clean_complete < budget) { + napi_complete(napi); + ring_data->ring->q->handle->dev->ops->toggle_ring_irq( + ring_data->ring, 0); + + ring_data->fini_process(ring_data); + } + + return clean_complete; +} + +static irqreturn_t hns_irq_handle(int irq, void *dev) +{ + struct hns_nic_ring_data *ring_data = (struct hns_nic_ring_data *)dev; + + ring_data->ring->q->handle->dev->ops->toggle_ring_irq( + ring_data->ring, 1); + napi_schedule(&ring_data->napi); + + return IRQ_HANDLED; +} + +/** + *hns_nic_adjust_link - adjust net work mode by the phy stat or new param + *@ndev: net device + */ +static void hns_nic_adjust_link(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + + h->dev->ops->adjust_link(h, ndev->phydev->speed, ndev->phydev->duplex); +} + +/** + *hns_nic_init_phy - init phy + *@ndev: net device + *@h: ae handle + * Return 0 on success, negative on failure + */ +int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct phy_device *phy_dev = NULL; + + if (!h->phy_node) + return 0; + + if (h->phy_if != PHY_INTERFACE_MODE_XGMII) + phy_dev = of_phy_connect(ndev, h->phy_node, + hns_nic_adjust_link, 0, h->phy_if); + else + phy_dev = of_phy_attach(ndev, h->phy_node, 0, h->phy_if); + + if (unlikely(!phy_dev) || IS_ERR(phy_dev)) + return !phy_dev ? -ENODEV : PTR_ERR(phy_dev); + + phy_dev->supported &= h->if_support; + phy_dev->advertising = phy_dev->supported; + + if (h->phy_if == PHY_INTERFACE_MODE_XGMII) + phy_dev->autoneg = false; + + priv->phy = phy_dev; + + return 0; +} + +static int hns_nic_ring_open(struct net_device *netdev, int idx) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + struct hnae_handle *h = priv->ae_handle; + + napi_enable(&priv->ring_data[idx].napi); + + enable_irq(priv->ring_data[idx].ring->irq); + h->dev->ops->toggle_ring_irq(priv->ring_data[idx].ring, 0); + + return 0; +} + +static int hns_nic_net_set_mac_address(struct net_device *ndev, void *p) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + struct sockaddr *mac_addr = p; + int ret; + + if (!mac_addr || !is_valid_ether_addr((const u8 *)mac_addr->sa_data)) + return -EADDRNOTAVAIL; + + ret = h->dev->ops->set_mac_addr(h, mac_addr->sa_data); + if (ret) { + netdev_err(ndev, "set_mac_address fail, ret=%d!\n", ret); + return ret; + } + + memcpy(ndev->dev_addr, mac_addr->sa_data, ndev->addr_len); + + return 0; +} + +void hns_nic_update_stats(struct net_device *netdev) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + struct hnae_handle *h = priv->ae_handle; + + h->dev->ops->update_stats(h, &netdev->stats); +} + +/* set mac addr if it is configed. or leave it to the AE driver */ +static void hns_init_mac_addr(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct device_node *node = priv->dev->of_node; + const void *mac_addr_temp; + + mac_addr_temp = of_get_mac_address(node); + if (mac_addr_temp && is_valid_ether_addr(mac_addr_temp)) { + memcpy(ndev->dev_addr, mac_addr_temp, ndev->addr_len); + } else { + eth_hw_addr_random(ndev); + dev_warn(priv->dev, "No valid mac, use random mac %pM", + ndev->dev_addr); + } +} + +static void hns_nic_ring_close(struct net_device *netdev, int idx) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + struct hnae_handle *h = priv->ae_handle; + + h->dev->ops->toggle_ring_irq(priv->ring_data[idx].ring, 1); + disable_irq(priv->ring_data[idx].ring->irq); + + napi_disable(&priv->ring_data[idx].napi); +} + +static int hns_nic_init_irq(struct hns_nic_priv *priv) +{ + struct hnae_handle *h = priv->ae_handle; + struct hns_nic_ring_data *rd; + int i; + int ret; + int cpu; + cpumask_t mask; + + for (i = 0; i < h->q_num * 2; i++) { + rd = &priv->ring_data[i]; + + if (rd->ring->irq_init_flag == RCB_IRQ_INITED) + break; + + snprintf(rd->ring->ring_name, RCB_RING_NAME_LEN, + "%s-%s%d", priv->netdev->name, + (i < h->q_num ? "tx" : "rx"), rd->queue_index); + + rd->ring->ring_name[RCB_RING_NAME_LEN - 1] = '\0'; + + ret = request_irq(rd->ring->irq, + hns_irq_handle, 0, rd->ring->ring_name, rd); + if (ret) { + netdev_err(priv->netdev, "request irq(%d) fail\n", + rd->ring->irq); + return ret; + } + disable_irq(rd->ring->irq); + rd->ring->irq_init_flag = RCB_IRQ_INITED; + + /*set cpu affinity*/ + if (cpu_online(rd->queue_index)) { + cpumask_clear(&mask); + cpu = rd->queue_index; + cpumask_set_cpu(cpu, &mask); + irq_set_affinity_hint(rd->ring->irq, &mask); + } + } + + return 0; +} + +static int hns_nic_net_up(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + int i, j, k; + int ret; + + ret = hns_nic_init_irq(priv); + if (ret != 0) { + netdev_err(ndev, "hns init irq failed! ret=%d\n", ret); + return ret; + } + + for (i = 0; i < h->q_num * 2; i++) { + ret = hns_nic_ring_open(ndev, i); + if (ret) + goto out_has_some_queues; + } + + for (k = 0; k < h->q_num; k++) + h->dev->ops->toggle_queue_status(h->qs[k], 1); + + ret = h->dev->ops->set_mac_addr(h, ndev->dev_addr); + if (ret) + goto out_set_mac_addr_err; + + ret = h->dev->ops->start ? h->dev->ops->start(h) : 0; + if (ret) + goto out_start_err; + + if (priv->phy) + phy_start(priv->phy); + + clear_bit(NIC_STATE_DOWN, &priv->state); + (void)mod_timer(&priv->service_timer, jiffies + SERVICE_TIMER_HZ); + + return 0; + +out_start_err: + netif_stop_queue(ndev); +out_set_mac_addr_err: + for (k = 0; k < h->q_num; k++) + h->dev->ops->toggle_queue_status(h->qs[k], 0); +out_has_some_queues: + for (j = i - 1; j >= 0; j--) + hns_nic_ring_close(ndev, j); + + set_bit(NIC_STATE_DOWN, &priv->state); + + return ret; +} + +static void hns_nic_net_down(struct net_device *ndev) +{ + int i; + struct hnae_ae_ops *ops; + struct hns_nic_priv *priv = netdev_priv(ndev); + + if (test_and_set_bit(NIC_STATE_DOWN, &priv->state)) + return; + + (void)del_timer_sync(&priv->service_timer); + netif_tx_stop_all_queues(ndev); + netif_carrier_off(ndev); + netif_tx_disable(ndev); + priv->link = 0; + + if (priv->phy) + phy_stop(priv->phy); + + ops = priv->ae_handle->dev->ops; + + if (ops->stop) + ops->stop(priv->ae_handle); + + netif_tx_stop_all_queues(ndev); + + for (i = priv->ae_handle->q_num - 1; i >= 0; i--) { + hns_nic_ring_close(ndev, i); + hns_nic_ring_close(ndev, i + priv->ae_handle->q_num); + + /* clean tx buffers*/ + hns_nic_tx_clr_all_bufs(priv->ring_data + i); + } +} + +void hns_nic_net_reset(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *handle = priv->ae_handle; + + while (test_and_set_bit(NIC_STATE_RESETTING, &priv->state)) + usleep_range(1000, 2000); + + (void)hnae_reinit_handle(handle); + + clear_bit(NIC_STATE_RESETTING, &priv->state); +} + +void hns_nic_net_reinit(struct net_device *netdev) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + + priv->netdev->trans_start = jiffies; + while (test_and_set_bit(NIC_STATE_REINITING, &priv->state)) + usleep_range(1000, 2000); + + hns_nic_net_down(netdev); + hns_nic_net_reset(netdev); + (void)hns_nic_net_up(netdev); + clear_bit(NIC_STATE_REINITING, &priv->state); +} + +static int hns_nic_net_open(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + int ret; + + if (test_bit(NIC_STATE_TESTING, &priv->state)) + return -EBUSY; + + priv->link = 0; + netif_carrier_off(ndev); + + ret = netif_set_real_num_tx_queues(ndev, h->q_num); + if (ret < 0) { + netdev_err(ndev, "netif_set_real_num_tx_queues fail, ret=%d!\n", + ret); + return ret; + } + + ret = netif_set_real_num_rx_queues(ndev, h->q_num); + if (ret < 0) { + netdev_err(ndev, + "netif_set_real_num_rx_queues fail, ret=%d!\n", ret); + return ret; + } + + ret = hns_nic_net_up(ndev); + if (ret) { + netdev_err(ndev, + "hns net up fail, ret=%d!\n", ret); + return ret; + } + + return 0; +} + +static int hns_nic_net_stop(struct net_device *ndev) +{ + hns_nic_net_down(ndev); + + return 0; +} + +static void hns_tx_timeout_reset(struct hns_nic_priv *priv); +static void hns_nic_net_timeout(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + + hns_tx_timeout_reset(priv); +} + +static int hns_nic_do_ioctl(struct net_device *netdev, struct ifreq *ifr, + int cmd) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + struct phy_device *phy_dev = priv->phy; + + if (!netif_running(netdev)) + return -EINVAL; + + if (!phy_dev) + return -ENOTSUPP; + + return phy_mii_ioctl(phy_dev, ifr, cmd); +} + +/* use only for netconsole to poll with the device without interrupt */ +#ifdef CONFIG_NET_POLL_CONTROLLER +void hns_nic_poll_controller(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + unsigned long flags; + int i; + + local_irq_save(flags); + for (i = 0; i < priv->ae_handle->q_num * 2; i++) + napi_schedule(&priv->ring_data[i].napi); + local_irq_restore(flags); +} +#endif + +static netdev_tx_t hns_nic_net_xmit(struct sk_buff *skb, + struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + int ret; + + assert(skb->queue_mapping < ndev->ae_handle->q_num); + ret = hns_nic_net_xmit_hw(ndev, skb, + &tx_ring_data(priv, skb->queue_mapping)); + if (ret == NETDEV_TX_OK) { + ndev->trans_start = jiffies; + ndev->stats.tx_bytes += skb->len; + ndev->stats.tx_packets++; + } + return (netdev_tx_t)ret; +} + +static int hns_nic_change_mtu(struct net_device *ndev, int new_mtu) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + int ret; + + /* MTU < 68 is an error and causes problems on some kernels */ + if (new_mtu < 68) + return -EINVAL; + + if (!h->dev->ops->set_mtu) + return -ENOTSUPP; + + if (netif_running(ndev)) { + (void)hns_nic_net_stop(ndev); + msleep(100); + + ret = h->dev->ops->set_mtu(h, new_mtu); + if (ret) + netdev_err(ndev, "set mtu fail, return value %d\n", + ret); + + if (hns_nic_net_open(ndev)) + netdev_err(ndev, "hns net open fail\n"); + } else { + ret = h->dev->ops->set_mtu(h, new_mtu); + } + + if (!ret) + ndev->mtu = new_mtu; + + return ret; +} + +/** + * nic_set_multicast_list - set mutl mac address + * @netdev: net device + * @p: mac address + * + * return void + */ +void hns_set_multicast_list(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + struct netdev_hw_addr *ha = NULL; + + if (!h) { + netdev_err(ndev, "hnae handle is null\n"); + return; + } + + if (h->dev->ops->set_mc_addr) { + netdev_for_each_mc_addr(ha, ndev) + if (h->dev->ops->set_mc_addr(h, ha->addr)) + netdev_err(ndev, "set multicast fail\n"); + } +} + +struct rtnl_link_stats64 *hns_nic_get_stats64(struct net_device *ndev, + struct rtnl_link_stats64 *stats) +{ + int idx = 0; + u64 tx_bytes = 0; + u64 rx_bytes = 0; + u64 tx_pkts = 0; + u64 rx_pkts = 0; + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + + for (idx = 0; idx < h->q_num; idx++) { + tx_bytes += h->qs[idx]->tx_ring.stats.tx_bytes; + tx_pkts += h->qs[idx]->tx_ring.stats.tx_pkts; + rx_bytes += h->qs[idx]->rx_ring.stats.rx_bytes; + rx_pkts += h->qs[idx]->rx_ring.stats.rx_pkts; + } + + stats->tx_bytes = tx_bytes; + stats->tx_packets = tx_pkts; + stats->rx_bytes = rx_bytes; + stats->rx_packets = rx_pkts; + + stats->rx_errors = ndev->stats.rx_errors; + stats->multicast = ndev->stats.multicast; + stats->rx_length_errors = ndev->stats.rx_length_errors; + stats->rx_crc_errors = ndev->stats.rx_crc_errors; + stats->rx_missed_errors = ndev->stats.rx_missed_errors; + + stats->tx_errors = ndev->stats.tx_errors; + stats->rx_dropped = ndev->stats.rx_dropped; + stats->tx_dropped = ndev->stats.tx_dropped; + stats->collisions = ndev->stats.collisions; + stats->rx_over_errors = ndev->stats.rx_over_errors; + stats->rx_frame_errors = ndev->stats.rx_frame_errors; + stats->rx_fifo_errors = ndev->stats.rx_fifo_errors; + stats->tx_aborted_errors = ndev->stats.tx_aborted_errors; + stats->tx_carrier_errors = ndev->stats.tx_carrier_errors; + stats->tx_fifo_errors = ndev->stats.tx_fifo_errors; + stats->tx_heartbeat_errors = ndev->stats.tx_heartbeat_errors; + stats->tx_window_errors = ndev->stats.tx_window_errors; + stats->rx_compressed = ndev->stats.rx_compressed; + stats->tx_compressed = ndev->stats.tx_compressed; + + return stats; +} + +static const struct net_device_ops hns_nic_netdev_ops = { + .ndo_open = hns_nic_net_open, + .ndo_stop = hns_nic_net_stop, + .ndo_start_xmit = hns_nic_net_xmit, + .ndo_tx_timeout = hns_nic_net_timeout, + .ndo_set_mac_address = hns_nic_net_set_mac_address, + .ndo_change_mtu = hns_nic_change_mtu, + .ndo_do_ioctl = hns_nic_do_ioctl, + .ndo_get_stats64 = hns_nic_get_stats64, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = hns_nic_poll_controller, +#endif + .ndo_set_rx_mode = hns_set_multicast_list, +}; + +static void hns_nic_update_link_status(struct net_device *netdev) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + + struct hnae_handle *h = priv->ae_handle; + int state = 1; + + if (priv->phy) { + if (!genphy_update_link(priv->phy)) + state = priv->phy->link; + else + state = 0; + } + state = state && h->dev->ops->get_status(h); + + if (state != priv->link) { + if (state) { + netif_carrier_on(netdev); + netif_tx_wake_all_queues(netdev); + netdev_info(netdev, "link up\n"); + } else { + netif_carrier_off(netdev); + netdev_info(netdev, "link down\n"); + } + priv->link = state; + } +} + +/* for dumping key regs*/ +static void hns_nic_dump(struct hns_nic_priv *priv) +{ + struct hnae_handle *h = priv->ae_handle; + struct hnae_ae_ops *ops = h->dev->ops; + u32 *data, reg_num, i; + + if (ops->get_regs_len && ops->get_regs) { + reg_num = ops->get_regs_len(priv->ae_handle); + reg_num = (reg_num + 3ul) & ~3ul; + data = kcalloc(reg_num, sizeof(u32), GFP_KERNEL); + if (data) { + ops->get_regs(priv->ae_handle, data); + for (i = 0; i < reg_num; i += 4) + pr_info("0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n", + i, data[i], data[i + 1], + data[i + 2], data[i + 3]); + kfree(data); + } + } + + for (i = 0; i < h->q_num; i++) { + pr_info("tx_queue%d_next_to_clean:%d\n", + i, h->qs[i]->tx_ring.next_to_clean); + pr_info("tx_queue%d_next_to_use:%d\n", + i, h->qs[i]->tx_ring.next_to_use); + pr_info("rx_queue%d_next_to_clean:%d\n", + i, h->qs[i]->rx_ring.next_to_clean); + pr_info("rx_queue%d_next_to_use:%d\n", + i, h->qs[i]->rx_ring.next_to_use); + } +} + +/* for resetting suntask*/ +static void hns_nic_reset_subtask(struct hns_nic_priv *priv) +{ + enum hnae_port_type type = priv->ae_handle->port_type; + + if (!test_bit(NIC_STATE2_RESET_REQUESTED, &priv->state)) + return; + clear_bit(NIC_STATE2_RESET_REQUESTED, &priv->state); + + /* If we're already down, removing or resetting, just bail */ + if (test_bit(NIC_STATE_DOWN, &priv->state) || + test_bit(NIC_STATE_REMOVING, &priv->state) || + test_bit(NIC_STATE_RESETTING, &priv->state)) + return; + + hns_nic_dump(priv); + netdev_err(priv->netdev, "Reset %s port\n", + (type == HNAE_PORT_DEBUG ? "debug" : "business")); + + rtnl_lock(); + if (type == HNAE_PORT_DEBUG) { + hns_nic_net_reinit(priv->netdev); + } else { + hns_nic_net_down(priv->netdev); + hns_nic_net_reset(priv->netdev); + } + rtnl_unlock(); +} + +/* for doing service complete*/ +static void hns_nic_service_event_complete(struct hns_nic_priv *priv) +{ + assert(!test_bit(NIC_STATE_SERVICE_SCHED, &priv->state)); + + smp_mb__before_atomic(); + clear_bit(NIC_STATE_SERVICE_SCHED, &priv->state); +} + +static void hns_nic_service_task(struct work_struct *work) +{ + struct hns_nic_priv *priv + = container_of(work, struct hns_nic_priv, service_task); + struct hnae_handle *h = priv->ae_handle; + + hns_nic_update_link_status(priv->netdev); + h->dev->ops->update_led_status(h); + hns_nic_update_stats(priv->netdev); + + hns_nic_reset_subtask(priv); + hns_nic_service_event_complete(priv); +} + +static void hns_nic_task_schedule(struct hns_nic_priv *priv) +{ + if (!test_bit(NIC_STATE_DOWN, &priv->state) && + !test_bit(NIC_STATE_REMOVING, &priv->state) && + !test_and_set_bit(NIC_STATE_SERVICE_SCHED, &priv->state)) + (void)schedule_work(&priv->service_task); +} + +static void hns_nic_service_timer(unsigned long data) +{ + struct hns_nic_priv *priv = (struct hns_nic_priv *)data; + + (void)mod_timer(&priv->service_timer, jiffies + SERVICE_TIMER_HZ); + + hns_nic_task_schedule(priv); +} + +/** + * hns_tx_timeout_reset - initiate reset due to Tx timeout + * @priv: driver private struct + **/ +static void hns_tx_timeout_reset(struct hns_nic_priv *priv) +{ + /* Do the reset outside of interrupt context */ + if (!test_bit(NIC_STATE_DOWN, &priv->state)) { + set_bit(NIC_STATE2_RESET_REQUESTED, &priv->state); + netdev_warn(priv->netdev, + "initiating reset due to tx timeout(%llu,0x%lx)\n", + priv->tx_timeout_count, priv->state); + priv->tx_timeout_count++; + hns_nic_task_schedule(priv); + } +} + +static int hns_nic_init_ring_data(struct hns_nic_priv *priv) +{ + struct hnae_handle *h = priv->ae_handle; + struct hns_nic_ring_data *rd; + int i; + + if (h->q_num > NIC_MAX_Q_PER_VF) { + netdev_err(priv->netdev, "too much queue (%d)\n", h->q_num); + return -EINVAL; + } + + priv->ring_data = kzalloc(h->q_num * sizeof(*priv->ring_data) * 2, + GFP_KERNEL); + if (!priv->ring_data) + return -ENOMEM; + + for (i = 0; i < h->q_num; i++) { + rd = &priv->ring_data[i]; + rd->queue_index = i; + rd->ring = &h->qs[i]->tx_ring; + rd->poll_one = hns_nic_tx_poll_one; + rd->fini_process = hns_nic_tx_fini_pro; + + netif_napi_add(priv->netdev, &rd->napi, + hns_nic_common_poll, NIC_TX_CLEAN_MAX_NUM); + rd->ring->irq_init_flag = RCB_IRQ_NOT_INITED; + } + for (i = h->q_num; i < h->q_num * 2; i++) { + rd = &priv->ring_data[i]; + rd->queue_index = i - h->q_num; + rd->ring = &h->qs[i - h->q_num]->rx_ring; + rd->poll_one = hns_nic_rx_poll_one; + rd->ex_process = hns_nic_rx_up_pro; + rd->fini_process = hns_nic_rx_fini_pro; + + netif_napi_add(priv->netdev, &rd->napi, + hns_nic_common_poll, NIC_RX_CLEAN_MAX_NUM); + rd->ring->irq_init_flag = RCB_IRQ_NOT_INITED; + } + + return 0; +} + +static void hns_nic_uninit_ring_data(struct hns_nic_priv *priv) +{ + struct hnae_handle *h = priv->ae_handle; + int i; + + for (i = 0; i < h->q_num * 2; i++) { + netif_napi_del(&priv->ring_data[i].napi); + if (priv->ring_data[i].ring->irq_init_flag == RCB_IRQ_INITED) { + irq_set_affinity_hint(priv->ring_data[i].ring->irq, + NULL); + free_irq(priv->ring_data[i].ring->irq, + &priv->ring_data[i]); + } + + priv->ring_data[i].ring->irq_init_flag = RCB_IRQ_NOT_INITED; + } + kfree(priv->ring_data); +} + +static int hns_nic_try_get_ae(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h; + int ret; + + h = hnae_get_handle(&priv->netdev->dev, + priv->ae_name, priv->port_id, NULL); + if (IS_ERR_OR_NULL(h)) { + ret = PTR_ERR(h); + dev_dbg(priv->dev, "has not handle, register notifier!\n"); + goto out; + } + priv->ae_handle = h; + + ret = hns_nic_init_phy(ndev, h); + if (ret) { + dev_err(priv->dev, "probe phy device fail!\n"); + goto out_init_phy; + } + + ret = hns_nic_init_ring_data(priv); + if (ret) { + ret = -ENOMEM; + goto out_init_ring_data; + } + + ret = register_netdev(ndev); + if (ret) { + dev_err(priv->dev, "probe register netdev fail!\n"); + goto out_reg_ndev_fail; + } + return 0; + +out_reg_ndev_fail: + hns_nic_uninit_ring_data(priv); + priv->ring_data = NULL; +out_init_phy: +out_init_ring_data: + hnae_put_handle(priv->ae_handle); + priv->ae_handle = NULL; +out: + return ret; +} + +static int hns_nic_notifier_action(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct hns_nic_priv *priv = + container_of(nb, struct hns_nic_priv, notifier_block); + + assert(action == HNAE_AE_REGISTER); + + if (!hns_nic_try_get_ae(priv->netdev)) { + hnae_unregister_notifier(&priv->notifier_block); + priv->notifier_block.notifier_call = NULL; + } + return 0; +} + +static int hns_nic_dev_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct net_device *ndev; + struct hns_nic_priv *priv; + struct device_node *node = dev->of_node; + int ret; + + ndev = alloc_etherdev_mq(sizeof(struct hns_nic_priv), NIC_MAX_Q_PER_VF); + if (!ndev) + return -ENOMEM; + + platform_set_drvdata(pdev, ndev); + + priv = netdev_priv(ndev); + priv->dev = dev; + priv->netdev = ndev; + + if (of_device_is_compatible(node, "hisilicon,hns-nic-v2")) + priv->enet_ver = AE_VERSION_2; + else + priv->enet_ver = AE_VERSION_1; + + ret = of_property_read_string(node, "ae-name", &priv->ae_name); + if (ret) + goto out_read_string_fail; + + ret = of_property_read_u32(node, "port-id", &priv->port_id); + if (ret) + goto out_read_string_fail; + + hns_init_mac_addr(ndev); + + ndev->watchdog_timeo = HNS_NIC_TX_TIMEOUT; + ndev->priv_flags |= IFF_UNICAST_FLT; + ndev->netdev_ops = &hns_nic_netdev_ops; + hns_ethtool_set_ops(ndev); + ndev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | + NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO | + NETIF_F_GRO; + ndev->vlan_features |= + NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM; + ndev->vlan_features |= NETIF_F_SG | NETIF_F_GSO | NETIF_F_GRO; + + SET_NETDEV_DEV(ndev, dev); + + if (!dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) + dev_dbg(dev, "set mask to 64bit\n"); + else + dev_err(dev, "set mask to 32bit fail!\n"); + + /* carrier off reporting is important to ethtool even BEFORE open */ + netif_carrier_off(ndev); + + setup_timer(&priv->service_timer, hns_nic_service_timer, + (unsigned long)priv); + INIT_WORK(&priv->service_task, hns_nic_service_task); + + set_bit(NIC_STATE_SERVICE_INITED, &priv->state); + clear_bit(NIC_STATE_SERVICE_SCHED, &priv->state); + set_bit(NIC_STATE_DOWN, &priv->state); + + if (hns_nic_try_get_ae(priv->netdev)) { + priv->notifier_block.notifier_call = hns_nic_notifier_action; + ret = hnae_register_notifier(&priv->notifier_block); + if (ret) { + dev_err(dev, "register notifier fail!\n"); + goto out_notify_fail; + } + dev_dbg(dev, "has not handle, register notifier!\n"); + } + + return 0; + +out_notify_fail: + (void)cancel_work_sync(&priv->service_task); +out_read_string_fail: + free_netdev(ndev); + return ret; +} + +static int hns_nic_dev_remove(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct hns_nic_priv *priv = netdev_priv(ndev); + + if (ndev->reg_state != NETREG_UNINITIALIZED) + unregister_netdev(ndev); + + if (priv->ring_data) + hns_nic_uninit_ring_data(priv); + priv->ring_data = NULL; + + if (priv->phy) + phy_disconnect(priv->phy); + priv->phy = NULL; + + if (!IS_ERR_OR_NULL(priv->ae_handle)) + hnae_put_handle(priv->ae_handle); + priv->ae_handle = NULL; + if (priv->notifier_block.notifier_call) + hnae_unregister_notifier(&priv->notifier_block); + priv->notifier_block.notifier_call = NULL; + + set_bit(NIC_STATE_REMOVING, &priv->state); + (void)cancel_work_sync(&priv->service_task); + + free_netdev(ndev); + return 0; +} + +static const struct of_device_id hns_enet_of_match[] = { + {.compatible = "hisilicon,hns-nic-v1",}, + {.compatible = "hisilicon,hns-nic-v2",}, + {}, +}; + +MODULE_DEVICE_TABLE(of, hns_enet_of_match); + +static struct platform_driver hns_nic_dev_driver = { + .driver = { + .name = "hns-nic", + .owner = THIS_MODULE, + .of_match_table = hns_enet_of_match, + }, + .probe = hns_nic_dev_probe, + .remove = hns_nic_dev_remove, +}; + +module_platform_driver(hns_nic_dev_driver); + +MODULE_DESCRIPTION("HISILICON HNS Ethernet driver"); +MODULE_AUTHOR("Hisilicon, Inc."); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:hns-nic"); diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.h b/drivers/net/ethernet/hisilicon/hns/hns_enet.h new file mode 100644 index 000000000000..dae0ed19ac6d --- /dev/null +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.h @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2014-2015 Hisilicon 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __HNS_ENET_H +#define __HNS_ENET_H + +#include <linux/netdevice.h> +#include <linux/of_net.h> +#include <linux/of_mdio.h> +#include <linux/timer.h> +#include <linux/workqueue.h> + +#include "hnae.h" + +enum hns_nic_state { + NIC_STATE_TESTING = 0, + NIC_STATE_RESETTING, + NIC_STATE_REINITING, + NIC_STATE_DOWN, + NIC_STATE_DISABLED, + NIC_STATE_REMOVING, + NIC_STATE_SERVICE_INITED, + NIC_STATE_SERVICE_SCHED, + NIC_STATE2_RESET_REQUESTED, + NIC_STATE_MAX +}; + +struct hns_nic_ring_data { + struct hnae_ring *ring; + struct napi_struct napi; + int queue_index; + int (*poll_one)(struct hns_nic_ring_data *, int, void *); + void (*ex_process)(struct hns_nic_ring_data *, struct sk_buff *); + void (*fini_process)(struct hns_nic_ring_data *); +}; + +struct hns_nic_priv { + const char *ae_name; + u32 enet_ver; + u32 port_id; + int phy_mode; + int phy_led_val; + struct phy_device *phy; + struct net_device *netdev; + struct device *dev; + struct hnae_handle *ae_handle; + + /* the cb for nic to manage the ring buffer, the first half of the + * array is for tx_ring and vice versa for the second half + */ + struct hns_nic_ring_data *ring_data; + + /* The most recently read link state */ + int link; + u64 tx_timeout_count; + + unsigned long state; + + struct timer_list service_timer; + + struct work_struct service_task; + + struct notifier_block notifier_block; +}; + +#define tx_ring_data(priv, idx) ((priv)->ring_data[idx]) +#define rx_ring_data(priv, idx) \ + ((priv)->ring_data[(priv)->ae_handle->q_num + (idx)]) + +void hns_ethtool_set_ops(struct net_device *ndev); +void hns_nic_net_reset(struct net_device *ndev); +void hns_nic_net_reinit(struct net_device *netdev); +int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h); +int hns_nic_net_xmit_hw(struct net_device *ndev, + struct sk_buff *skb, + struct hns_nic_ring_data *ring_data); + +#endif /**__HNS_ENET_H */ diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c new file mode 100644 index 000000000000..2550208cb22e --- /dev/null +++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c @@ -0,0 +1,1230 @@ +/* + * Copyright (c) 2014-2015 Hisilicon 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/etherdevice.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include "hns_enet.h" + +#define HNS_PHY_PAGE_MDIX 0 +#define HNS_PHY_PAGE_LED 3 +#define HNS_PHY_PAGE_COPPER 0 + +#define HNS_PHY_PAGE_REG 22 /* Page Selection Reg. */ +#define HNS_PHY_CSC_REG 16 /* Copper Specific Control Register */ +#define HNS_PHY_CSS_REG 17 /* Copper Specific Status Register */ +#define HNS_LED_FC_REG 16 /* LED Function Control Reg. */ +#define HNS_LED_PC_REG 17 /* LED Polarity Control Reg. */ + +#define HNS_LED_FORCE_ON 9 +#define HNS_LED_FORCE_OFF 8 + +#define HNS_CHIP_VERSION 660 +#define HNS_NET_STATS_CNT 26 + +#define PHY_MDIX_CTRL_S (5) +#define PHY_MDIX_CTRL_M (3 << PHY_MDIX_CTRL_S) + +#define PHY_MDIX_STATUS_B (6) +#define PHY_SPEED_DUP_RESOLVE_B (11) + +/** + *hns_nic_get_link - get current link status + *@net_dev: net_device + *retuen 0 - success , negative --fail + */ +static u32 hns_nic_get_link(struct net_device *net_dev) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + u32 link_stat = priv->link; + struct hnae_handle *h; + + assert(priv && priv->ae_handle); + h = priv->ae_handle; + + if (priv->phy) { + if (!genphy_update_link(priv->phy)) + link_stat = priv->phy->link; + else + link_stat = 0; + } + + if (h->dev && h->dev->ops && h->dev->ops->get_status) + link_stat = link_stat && h->dev->ops->get_status(h); + else + link_stat = 0; + + return link_stat; +} + +static void hns_get_mdix_mode(struct net_device *net_dev, + struct ethtool_cmd *cmd) +{ + int mdix_ctrl, mdix, retval, is_resolved; + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct phy_device *phy_dev = priv->phy; + + if (!phy_dev || !phy_dev->bus) { + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; + cmd->eth_tp_mdix = ETH_TP_MDI_INVALID; + return; + } + + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, HNS_PHY_PAGE_REG, + HNS_PHY_PAGE_MDIX); + + retval = mdiobus_read(phy_dev->bus, phy_dev->addr, HNS_PHY_CSC_REG); + mdix_ctrl = hnae_get_field(retval, PHY_MDIX_CTRL_M, PHY_MDIX_CTRL_S); + + retval = mdiobus_read(phy_dev->bus, phy_dev->addr, HNS_PHY_CSS_REG); + mdix = hnae_get_bit(retval, PHY_MDIX_STATUS_B); + is_resolved = hnae_get_bit(retval, PHY_SPEED_DUP_RESOLVE_B); + + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, HNS_PHY_PAGE_REG, + HNS_PHY_PAGE_COPPER); + + switch (mdix_ctrl) { + case 0x0: + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI; + break; + case 0x1: + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_X; + break; + case 0x3: + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; + break; + default: + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; + break; + } + + if (!is_resolved) + cmd->eth_tp_mdix = ETH_TP_MDI_INVALID; + else if (mdix) + cmd->eth_tp_mdix = ETH_TP_MDI_X; + else + cmd->eth_tp_mdix = ETH_TP_MDI; +} + +/** + *hns_nic_get_settings - implement ethtool get settings + *@net_dev: net_device + *@cmd: ethtool_cmd + *retuen 0 - success , negative --fail + */ +static int hns_nic_get_settings(struct net_device *net_dev, + struct ethtool_cmd *cmd) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_handle *h; + u32 link_stat; + int ret; + u8 duplex; + u16 speed; + + if (!priv || !priv->ae_handle) + return -ESRCH; + + h = priv->ae_handle; + if (!h->dev || !h->dev->ops || !h->dev->ops->get_info) + return -ESRCH; + + ret = h->dev->ops->get_info(h, NULL, &speed, &duplex); + if (ret < 0) { + netdev_err(net_dev, "%s get_info error!\n", __func__); + return -EINVAL; + } + + /* When there is no phy, autoneg is off. */ + cmd->autoneg = false; + ethtool_cmd_speed_set(cmd, speed); + cmd->duplex = duplex; + + if (priv->phy) + (void)phy_ethtool_gset(priv->phy, cmd); + + link_stat = hns_nic_get_link(net_dev); + if (!link_stat) { + ethtool_cmd_speed_set(cmd, (u32)SPEED_UNKNOWN); + cmd->duplex = DUPLEX_UNKNOWN; + } + + if (cmd->autoneg) + cmd->advertising |= ADVERTISED_Autoneg; + + cmd->supported |= h->if_support; + if (h->phy_if == PHY_INTERFACE_MODE_SGMII) { + cmd->supported |= SUPPORTED_TP; + cmd->advertising |= ADVERTISED_1000baseT_Full; + } else if (h->phy_if == PHY_INTERFACE_MODE_XGMII) { + cmd->supported |= SUPPORTED_FIBRE; + cmd->advertising |= ADVERTISED_10000baseKR_Full; + } + + if (h->port_type == HNAE_PORT_SERVICE) { + cmd->port = PORT_FIBRE; + cmd->supported |= SUPPORTED_Pause; + } else { + cmd->port = PORT_TP; + } + + cmd->transceiver = XCVR_EXTERNAL; + cmd->mdio_support = (ETH_MDIO_SUPPORTS_C45 | ETH_MDIO_SUPPORTS_C22); + hns_get_mdix_mode(net_dev, cmd); + + return 0; +} + +/** + *hns_nic_set_settings - implement ethtool set settings + *@net_dev: net_device + *@cmd: ethtool_cmd + *retuen 0 - success , negative --fail + */ +static int hns_nic_set_settings(struct net_device *net_dev, + struct ethtool_cmd *cmd) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_handle *h; + int link_stat; + u32 speed; + u8 duplex, autoneg; + + if (!netif_running(net_dev)) + return -ESRCH; + + if (!priv || !priv->ae_handle || !priv->ae_handle->dev || + !priv->ae_handle->dev->ops) + return -ENODEV; + + h = priv->ae_handle; + link_stat = hns_nic_get_link(net_dev); + duplex = cmd->duplex; + speed = ethtool_cmd_speed(cmd); + autoneg = cmd->autoneg; + + if (!link_stat) { + if (duplex != (u8)DUPLEX_UNKNOWN || speed != (u32)SPEED_UNKNOWN) + return -EINVAL; + + if (h->phy_if == PHY_INTERFACE_MODE_SGMII && h->phy_node) { + priv->phy->autoneg = autoneg; + return phy_start_aneg(priv->phy); + } + } + + if (h->phy_if == PHY_INTERFACE_MODE_XGMII) { + if (autoneg != AUTONEG_DISABLE) + return -EINVAL; + + if (speed != SPEED_10000 || duplex != DUPLEX_FULL) + return -EINVAL; + } else if (h->phy_if == PHY_INTERFACE_MODE_SGMII) { + if (!h->phy_node && autoneg != AUTONEG_DISABLE) + return -EINVAL; + + if (speed == SPEED_1000 && duplex == DUPLEX_HALF) + return -EINVAL; + + if (speed != SPEED_10 && speed != SPEED_100 && + speed != SPEED_1000) + return -EINVAL; + } else { + netdev_err(net_dev, "Not supported!"); + return -ENOTSUPP; + } + + if (priv->phy) { + return phy_ethtool_sset(priv->phy, cmd); + } else if (h->dev->ops->adjust_link && link_stat) { + h->dev->ops->adjust_link(h, speed, duplex); + return 0; + } + netdev_err(net_dev, "Not supported!"); + return -ENOTSUPP; +} + +static const char hns_nic_test_strs[][ETH_GSTRING_LEN] = { + "Mac Loopback test", + "Serdes Loopback test", + "Phy Loopback test" +}; + +static int hns_nic_config_phy_loopback(struct phy_device *phy_dev, u8 en) +{ +#define COPPER_CONTROL_REG 0 +#define PHY_LOOP_BACK BIT(14) + u16 val = 0; + + if (phy_dev->is_c45) /* c45 branch adding for XGE PHY */ + return -ENOTSUPP; + + if (en) { + /* speed : 1000M */ + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_PHY_PAGE_REG, 2); + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 21, 0x1046); + /* Force Master */ + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 9, 0x1F00); + /* Soft-reset */ + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 0, 0x9140); + /* If autoneg disabled,two soft-reset operations */ + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 0, 0x9140); + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 22, 0xFA); + + /* Default is 0x0400 */ + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 1, 0x418); + + /* Force 1000M Link, Default is 0x0200 */ + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 7, 0x20C); + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 22, 0); + + /* Enable MAC loop-back */ + val = (u16)mdiobus_read(phy_dev->bus, phy_dev->addr, + COPPER_CONTROL_REG); + val |= PHY_LOOP_BACK; + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + COPPER_CONTROL_REG, val); + } else { + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 22, 0xFA); + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 1, 0x400); + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 7, 0x200); + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + 22, 0); + + val = (u16)mdiobus_read(phy_dev->bus, phy_dev->addr, + COPPER_CONTROL_REG); + val &= ~PHY_LOOP_BACK; + (void)mdiobus_write(phy_dev->bus, phy_dev->addr, + COPPER_CONTROL_REG, val); + } + return 0; +} + +static int __lb_setup(struct net_device *ndev, + enum hnae_loop loop) +{ + int ret = 0; + struct hns_nic_priv *priv = netdev_priv(ndev); + struct phy_device *phy_dev = priv->phy; + struct hnae_handle *h = priv->ae_handle; + + switch (loop) { + case MAC_INTERNALLOOP_PHY: + if ((phy_dev) && (!phy_dev->is_c45)) + ret = hns_nic_config_phy_loopback(phy_dev, 0x1); + break; + case MAC_INTERNALLOOP_MAC: + if ((h->dev->ops->set_loopback) && + (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII)) + ret = h->dev->ops->set_loopback(h, loop, 0x1); + break; + case MAC_INTERNALLOOP_SERDES: + if (h->dev->ops->set_loopback) + ret = h->dev->ops->set_loopback(h, loop, 0x1); + break; + case MAC_LOOP_NONE: + if ((phy_dev) && (!phy_dev->is_c45)) + ret |= hns_nic_config_phy_loopback(phy_dev, 0x0); + + if (h->dev->ops->set_loopback) { + if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII) + ret |= h->dev->ops->set_loopback(h, + MAC_INTERNALLOOP_MAC, 0x0); + + ret |= h->dev->ops->set_loopback(h, + MAC_INTERNALLOOP_SERDES, 0x0); + } + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static int __lb_up(struct net_device *ndev, + enum hnae_loop loop_mode) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + int speed, duplex; + int ret; + + hns_nic_net_reset(ndev); + + if (priv->phy) { + phy_disconnect(priv->phy); + msleep(100); + + ret = hns_nic_init_phy(ndev, h); + if (ret) + return ret; + } + + ret = __lb_setup(ndev, loop_mode); + if (ret) + return ret; + + msleep(100); + + ret = h->dev->ops->start ? h->dev->ops->start(h) : 0; + if (ret) + return ret; + + if (priv->phy) + phy_start(priv->phy); + + /* link adjust duplex*/ + if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII) + speed = 1000; + else + speed = 10000; + duplex = 1; + + h->dev->ops->adjust_link(h, speed, duplex); + + return 0; +} + +static void __lb_other_process(struct hns_nic_ring_data *ring_data, + struct sk_buff *skb) +{ + struct net_device *ndev; + struct hnae_ring *ring; + struct netdev_queue *dev_queue; + struct sk_buff *new_skb; + unsigned int frame_size; + int check_ok; + u32 i; + char buff[33]; /* 32B data and the last character '\0' */ + + if (!ring_data) { /* Just for doing create frame*/ + frame_size = skb->len; + memset(skb->data, 0xFF, frame_size); + frame_size &= ~1ul; + memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); + memset(&skb->data[frame_size / 2 + 10], 0xBE, + frame_size / 2 - 11); + memset(&skb->data[frame_size / 2 + 12], 0xAF, + frame_size / 2 - 13); + return; + } + + ring = ring_data->ring; + ndev = ring_data->napi.dev; + if (is_tx_ring(ring)) { /* for tx queue reset*/ + dev_queue = netdev_get_tx_queue(ndev, ring_data->queue_index); + netdev_tx_reset_queue(dev_queue); + return; + } + + frame_size = skb->len; + frame_size &= ~1ul; + /* for mutl buffer*/ + new_skb = skb_copy(skb, GFP_ATOMIC); + dev_kfree_skb_any(skb); + skb = new_skb; + + check_ok = 0; + if (*(skb->data + 10) == 0xFF) { /* for rx check frame*/ + if ((*(skb->data + frame_size / 2 + 10) == 0xBE) && + (*(skb->data + frame_size / 2 + 12) == 0xAF)) + check_ok = 1; + } + + if (check_ok) { + ndev->stats.rx_packets++; + ndev->stats.rx_bytes += skb->len; + } else { + ndev->stats.rx_frame_errors++; + for (i = 0; i < skb->len; i++) { + snprintf(buff + i % 16 * 2, 3, /* tailing \0*/ + "%02x", *(skb->data + i)); + if ((i % 16 == 15) || (i == skb->len - 1)) + pr_info("%s\n", buff); + } + } + dev_kfree_skb_any(skb); +} + +static int __lb_clean_rings(struct hns_nic_priv *priv, + int ringid0, int ringid1, int budget) +{ + int i, ret; + struct hns_nic_ring_data *ring_data; + struct net_device *ndev = priv->netdev; + unsigned long rx_packets = ndev->stats.rx_packets; + unsigned long rx_bytes = ndev->stats.rx_bytes; + unsigned long rx_frame_errors = ndev->stats.rx_frame_errors; + + for (i = ringid0; i <= ringid1; i++) { + ring_data = &priv->ring_data[i]; + (void)ring_data->poll_one(ring_data, + budget, __lb_other_process); + } + ret = (int)(ndev->stats.rx_packets - rx_packets); + ndev->stats.rx_packets = rx_packets; + ndev->stats.rx_bytes = rx_bytes; + ndev->stats.rx_frame_errors = rx_frame_errors; + return ret; +} + +/** + * nic_run_loopback_test - run loopback test + * @nic_dev: net device + * @loopback_type: loopback type + */ +static int __lb_run_test(struct net_device *ndev, + enum hnae_loop loop_mode) +{ +#define NIC_LB_TEST_PKT_NUM_PER_CYCLE 1 +#define NIC_LB_TEST_RING_ID 0 +#define NIC_LB_TEST_FRAME_SIZE 128 +/* nic loopback test err */ +#define NIC_LB_TEST_NO_MEM_ERR 1 +#define NIC_LB_TEST_TX_CNT_ERR 2 +#define NIC_LB_TEST_RX_CNT_ERR 3 +#define NIC_LB_TEST_RX_PKG_ERR 4 + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + int i, j, lc, good_cnt, ret_val = 0; + unsigned int size; + netdev_tx_t tx_ret_val; + struct sk_buff *skb; + + size = NIC_LB_TEST_FRAME_SIZE; + /* allocate test skb */ + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) + return NIC_LB_TEST_NO_MEM_ERR; + + /* place data into test skb */ + (void)skb_put(skb, size); + __lb_other_process(NULL, skb); + skb->queue_mapping = NIC_LB_TEST_RING_ID; + + lc = 1; + for (j = 0; j < lc; j++) { + /* reset count of good packets */ + good_cnt = 0; + /* place 64 packets on the transmit queue*/ + for (i = 0; i < NIC_LB_TEST_PKT_NUM_PER_CYCLE; i++) { + (void)skb_get(skb); + + tx_ret_val = (netdev_tx_t)hns_nic_net_xmit_hw( + ndev, skb, + &tx_ring_data(priv, skb->queue_mapping)); + if (tx_ret_val == NETDEV_TX_OK) + good_cnt++; + else + break; + } + if (good_cnt != NIC_LB_TEST_PKT_NUM_PER_CYCLE) { + ret_val = NIC_LB_TEST_TX_CNT_ERR; + dev_err(priv->dev, "%s sent fail, cnt=0x%x, budget=0x%x\n", + hns_nic_test_strs[loop_mode], good_cnt, + NIC_LB_TEST_PKT_NUM_PER_CYCLE); + break; + } + + /* allow 100 milliseconds for packets to go from Tx to Rx */ + msleep(100); + + good_cnt = __lb_clean_rings(priv, + h->q_num, h->q_num * 2 - 1, + NIC_LB_TEST_PKT_NUM_PER_CYCLE); + if (good_cnt != NIC_LB_TEST_PKT_NUM_PER_CYCLE) { + ret_val = NIC_LB_TEST_RX_CNT_ERR; + dev_err(priv->dev, "%s recv fail, cnt=0x%x, budget=0x%x\n", + hns_nic_test_strs[loop_mode], good_cnt, + NIC_LB_TEST_PKT_NUM_PER_CYCLE); + break; + } + (void)__lb_clean_rings(priv, + NIC_LB_TEST_RING_ID, NIC_LB_TEST_RING_ID, + NIC_LB_TEST_PKT_NUM_PER_CYCLE); + } + + /* free the original skb */ + kfree_skb(skb); + + return ret_val; +} + +static int __lb_down(struct net_device *ndev) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + struct hnae_handle *h = priv->ae_handle; + int ret; + + ret = __lb_setup(ndev, MAC_LOOP_NONE); + if (ret) + netdev_err(ndev, "%s: __lb_setup return error(%d)!\n", + __func__, + ret); + + if (priv->phy) + phy_stop(priv->phy); + + if (h->dev->ops->stop) + h->dev->ops->stop(h); + + usleep_range(10000, 20000); + (void)__lb_clean_rings(priv, 0, h->q_num - 1, 256); + + hns_nic_net_reset(ndev); + + return 0; +} + +/** + * hns_nic_self_test - self test + * @dev: net device + * @eth_test: test cmd + * @data: test result + */ +static void hns_nic_self_test(struct net_device *ndev, + struct ethtool_test *eth_test, u64 *data) +{ + struct hns_nic_priv *priv = netdev_priv(ndev); + bool if_running = netif_running(ndev); +#define SELF_TEST_TPYE_NUM 3 + int st_param[SELF_TEST_TPYE_NUM][2]; + int i; + int test_index = 0; + + st_param[0][0] = MAC_INTERNALLOOP_MAC; /* XGE not supported lb */ + st_param[0][1] = (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII); + st_param[1][0] = MAC_INTERNALLOOP_SERDES; + st_param[1][1] = 1; /*serdes must exist*/ + st_param[2][0] = MAC_INTERNALLOOP_PHY; /* only supporte phy node*/ + st_param[2][1] = ((!!(priv->ae_handle->phy_node)) && + (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII)); + + if (eth_test->flags == ETH_TEST_FL_OFFLINE) { + set_bit(NIC_STATE_TESTING, &priv->state); + + if (if_running) + (void)dev_close(ndev); + + for (i = 0; i < SELF_TEST_TPYE_NUM; i++) { + if (!st_param[i][1]) + continue; /* NEXT testing */ + + data[test_index] = __lb_up(ndev, + (enum hnae_loop)st_param[i][0]); + if (!data[test_index]) { + data[test_index] = __lb_run_test( + ndev, (enum hnae_loop)st_param[i][0]); + (void)__lb_down(ndev); + } + + if (data[test_index]) + eth_test->flags |= ETH_TEST_FL_FAILED; + + test_index++; + } + + hns_nic_net_reset(priv->netdev); + + clear_bit(NIC_STATE_TESTING, &priv->state); + + if (if_running) + (void)dev_open(ndev); + } + /* Online tests aren't run; pass by default */ + + (void)msleep_interruptible(4 * 1000); +} + +/** + * hns_nic_get_drvinfo - get net driver info + * @dev: net device + * @drvinfo: driver info + */ +static void hns_nic_get_drvinfo(struct net_device *net_dev, + struct ethtool_drvinfo *drvinfo) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + + assert(priv); + + strncpy(drvinfo->version, HNAE_DRIVER_VERSION, + sizeof(drvinfo->version)); + drvinfo->version[sizeof(drvinfo->version) - 1] = '\0'; + + strncpy(drvinfo->driver, HNAE_DRIVER_NAME, sizeof(drvinfo->driver)); + drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0'; + + strncpy(drvinfo->bus_info, priv->dev->bus->name, + sizeof(drvinfo->bus_info)); + drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0'; + + strncpy(drvinfo->fw_version, "N/A", ETHTOOL_FWVERS_LEN); + drvinfo->eedump_len = 0; +} + +/** + * hns_get_ringparam - get ring parameter + * @dev: net device + * @param: ethtool parameter + */ +void hns_get_ringparam(struct net_device *net_dev, + struct ethtool_ringparam *param) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_ae_ops *ops; + struct hnae_queue *queue; + u32 uplimit = 0; + + queue = priv->ae_handle->qs[0]; + ops = priv->ae_handle->dev->ops; + + if (ops->get_ring_bdnum_limit) + ops->get_ring_bdnum_limit(queue, &uplimit); + + param->rx_max_pending = uplimit; + param->tx_max_pending = uplimit; + param->rx_pending = queue->rx_ring.desc_num; + param->tx_pending = queue->tx_ring.desc_num; +} + +/** + * hns_get_pauseparam - get pause parameter + * @dev: net device + * @param: pause parameter + */ +static void hns_get_pauseparam(struct net_device *net_dev, + struct ethtool_pauseparam *param) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_ae_ops *ops; + + ops = priv->ae_handle->dev->ops; + + if (ops->get_pauseparam) + ops->get_pauseparam(priv->ae_handle, ¶m->autoneg, + ¶m->rx_pause, ¶m->tx_pause); +} + +/** + * hns_set_pauseparam - set pause parameter + * @dev: net device + * @param: pause parameter + * + * Return 0 on success, negative on failure + */ +static int hns_set_pauseparam(struct net_device *net_dev, + struct ethtool_pauseparam *param) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_handle *h; + struct hnae_ae_ops *ops; + + assert(priv || priv->ae_handle); + + h = priv->ae_handle; + ops = h->dev->ops; + + if (!ops->set_pauseparam) + return -ESRCH; + + return ops->set_pauseparam(priv->ae_handle, param->autoneg, + param->rx_pause, param->tx_pause); +} + +/** + * hns_get_coalesce - get coalesce info. + * @dev: net device + * @ec: coalesce info. + * + * Return 0 on success, negative on failure. + */ +static int hns_get_coalesce(struct net_device *net_dev, + struct ethtool_coalesce *ec) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_ae_ops *ops; + + ops = priv->ae_handle->dev->ops; + + ec->use_adaptive_rx_coalesce = 1; + ec->use_adaptive_tx_coalesce = 1; + + if ((!ops->get_coalesce_usecs) || + (!ops->get_rx_max_coalesced_frames)) + return -ESRCH; + + ops->get_coalesce_usecs(priv->ae_handle, + &ec->tx_coalesce_usecs, + &ec->rx_coalesce_usecs); + + ops->get_rx_max_coalesced_frames( + priv->ae_handle, + &ec->tx_max_coalesced_frames, + &ec->rx_max_coalesced_frames); + + return 0; +} + +/** + * hns_set_coalesce - set coalesce info. + * @dev: net device + * @ec: coalesce info. + * + * Return 0 on success, negative on failure. + */ +static int hns_set_coalesce(struct net_device *net_dev, + struct ethtool_coalesce *ec) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_ae_ops *ops; + int ret; + + assert(priv || priv->ae_handle); + + ops = priv->ae_handle->dev->ops; + + if (ec->tx_coalesce_usecs != ec->rx_coalesce_usecs) + return -EINVAL; + + if (ec->rx_max_coalesced_frames != ec->tx_max_coalesced_frames) + return -EINVAL; + + if ((!ops->set_coalesce_usecs) || + (!ops->set_coalesce_frames)) + return -ESRCH; + + ops->set_coalesce_usecs(priv->ae_handle, + ec->rx_coalesce_usecs); + + ret = ops->set_coalesce_frames( + priv->ae_handle, + ec->rx_max_coalesced_frames); + + return ret; +} + +/** + * hns_get_channels - get channel info. + * @dev: net device + * @ch: channel info. + */ +void hns_get_channels(struct net_device *net_dev, struct ethtool_channels *ch) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + + ch->max_rx = priv->ae_handle->q_num; + ch->max_tx = priv->ae_handle->q_num; + + ch->rx_count = priv->ae_handle->q_num; + ch->tx_count = priv->ae_handle->q_num; +} + +/** + * get_ethtool_stats - get detail statistics. + * @dev: net device + * @stats: statistics info. + * @data: statistics data. + */ +void hns_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + u64 *p = data; + struct hns_nic_priv *priv = netdev_priv(netdev); + struct hnae_handle *h = priv->ae_handle; + const struct rtnl_link_stats64 *net_stats; + struct rtnl_link_stats64 temp; + + if (!h->dev->ops->get_stats || !h->dev->ops->update_stats) { + netdev_err(netdev, "get_stats or update_stats is null!\n"); + return; + } + + h->dev->ops->update_stats(h, &netdev->stats); + + net_stats = dev_get_stats(netdev, &temp); + + /* get netdev statistics */ + p[0] = net_stats->rx_packets; + p[1] = net_stats->tx_packets; + p[2] = net_stats->rx_bytes; + p[3] = net_stats->tx_bytes; + p[4] = net_stats->rx_errors; + p[5] = net_stats->tx_errors; + p[6] = net_stats->rx_dropped; + p[7] = net_stats->tx_dropped; + p[8] = net_stats->multicast; + p[9] = net_stats->collisions; + p[10] = net_stats->rx_over_errors; + p[11] = net_stats->rx_crc_errors; + p[12] = net_stats->rx_frame_errors; + p[13] = net_stats->rx_fifo_errors; + p[14] = net_stats->rx_missed_errors; + p[15] = net_stats->tx_aborted_errors; + p[16] = net_stats->tx_carrier_errors; + p[17] = net_stats->tx_fifo_errors; + p[18] = net_stats->tx_heartbeat_errors; + p[19] = net_stats->rx_length_errors; + p[20] = net_stats->tx_window_errors; + p[21] = net_stats->rx_compressed; + p[22] = net_stats->tx_compressed; + + p[23] = netdev->rx_dropped.counter; + p[24] = netdev->tx_dropped.counter; + + p[25] = priv->tx_timeout_count; + + /* get driver statistics */ + h->dev->ops->get_stats(h, &p[26]); +} + +/** + * get_strings: Return a set of strings that describe the requested objects + * @dev: net device + * @stats: string set ID. + * @data: objects data. + */ +void hns_get_strings(struct net_device *netdev, u32 stringset, u8 *data) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + struct hnae_handle *h = priv->ae_handle; + char *buff = (char *)data; + + if (!h->dev->ops->get_strings) { + netdev_err(netdev, "h->dev->ops->get_strings is null!\n"); + return; + } + + if (stringset == ETH_SS_TEST) { + if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII) { + memcpy(buff, hns_nic_test_strs[MAC_INTERNALLOOP_MAC], + ETH_GSTRING_LEN); + buff += ETH_GSTRING_LEN; + } + memcpy(buff, hns_nic_test_strs[MAC_INTERNALLOOP_SERDES], + ETH_GSTRING_LEN); + buff += ETH_GSTRING_LEN; + if ((priv->phy) && (!priv->phy->is_c45)) + memcpy(buff, hns_nic_test_strs[MAC_INTERNALLOOP_PHY], + ETH_GSTRING_LEN); + + } else { + snprintf(buff, ETH_GSTRING_LEN, "rx_packets"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_packets"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_bytes"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_bytes"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_dropped"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_dropped"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "multicast"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "collisions"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_over_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_crc_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_frame_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_fifo_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_missed_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_aborted_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_carrier_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_fifo_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_heartbeat_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_length_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_window_errors"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "rx_compressed"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "tx_compressed"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "netdev_rx_dropped"); + buff = buff + ETH_GSTRING_LEN; + snprintf(buff, ETH_GSTRING_LEN, "netdev_tx_dropped"); + buff = buff + ETH_GSTRING_LEN; + + snprintf(buff, ETH_GSTRING_LEN, "netdev_tx_timeout"); + buff = buff + ETH_GSTRING_LEN; + + h->dev->ops->get_strings(h, stringset, (u8 *)buff); + } +} + +/** + * nic_get_sset_count - get string set count witch returned by nic_get_strings. + * @dev: net device + * @stringset: string set index, 0: self test string; 1: statistics string. + * + * Return string set count. + */ +int hns_get_sset_count(struct net_device *netdev, int stringset) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + struct hnae_handle *h = priv->ae_handle; + struct hnae_ae_ops *ops = h->dev->ops; + + if (!ops->get_sset_count) { + netdev_err(netdev, "get_sset_count is null!\n"); + return -EOPNOTSUPP; + } + if (stringset == ETH_SS_TEST) { + u32 cnt = (sizeof(hns_nic_test_strs) / ETH_GSTRING_LEN); + + if (priv->ae_handle->phy_if == PHY_INTERFACE_MODE_XGMII) + cnt--; + + if ((!priv->phy) || (priv->phy->is_c45)) + cnt--; + + return cnt; + } else { + return (HNS_NET_STATS_CNT + ops->get_sset_count(h, stringset)); + } +} + +/** + * hns_phy_led_set - set phy LED status. + * @dev: net device + * @value: LED state. + * + * Return 0 on success, negative on failure. + */ +int hns_phy_led_set(struct net_device *netdev, int value) +{ + int retval; + struct hns_nic_priv *priv = netdev_priv(netdev); + struct phy_device *phy_dev = priv->phy; + + if (!phy_dev->bus) { + netdev_err(netdev, "phy_dev->bus is null!\n"); + return -EINVAL; + } + retval = mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_PHY_PAGE_REG, HNS_PHY_PAGE_LED); + retval = mdiobus_write(phy_dev->bus, phy_dev->addr, HNS_LED_FC_REG, + value); + retval = mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_PHY_PAGE_REG, HNS_PHY_PAGE_COPPER); + if (retval) { + netdev_err(netdev, "mdiobus_write fail !\n"); + return retval; + } + return 0; +} + +/** + * nic_set_phys_id - set phy identify LED. + * @dev: net device + * @state: LED state. + * + * Return 0 on success, negative on failure. + */ +int hns_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state) +{ + struct hns_nic_priv *priv = netdev_priv(netdev); + struct hnae_handle *h = priv->ae_handle; + struct phy_device *phy_dev = priv->phy; + int ret; + + if (phy_dev) + switch (state) { + case ETHTOOL_ID_ACTIVE: + ret = mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_PHY_PAGE_REG, + HNS_PHY_PAGE_LED); + if (ret) + return ret; + + priv->phy_led_val = (u16)mdiobus_read(phy_dev->bus, + phy_dev->addr, + HNS_LED_FC_REG); + + ret = mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_PHY_PAGE_REG, + HNS_PHY_PAGE_COPPER); + if (ret) + return ret; + return 2; + case ETHTOOL_ID_ON: + ret = hns_phy_led_set(netdev, HNS_LED_FORCE_ON); + if (ret) + return ret; + break; + case ETHTOOL_ID_OFF: + ret = hns_phy_led_set(netdev, HNS_LED_FORCE_OFF); + if (ret) + return ret; + break; + case ETHTOOL_ID_INACTIVE: + ret = mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_PHY_PAGE_REG, + HNS_PHY_PAGE_LED); + if (ret) + return ret; + + ret = mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_LED_FC_REG, priv->phy_led_val); + if (ret) + return ret; + + ret = mdiobus_write(phy_dev->bus, phy_dev->addr, + HNS_PHY_PAGE_REG, + HNS_PHY_PAGE_COPPER); + if (ret) + return ret; + break; + default: + return -EINVAL; + } + else + switch (state) { + case ETHTOOL_ID_ACTIVE: + return h->dev->ops->set_led_id(h, HNAE_LED_ACTIVE); + case ETHTOOL_ID_ON: + return h->dev->ops->set_led_id(h, HNAE_LED_ON); + case ETHTOOL_ID_OFF: + return h->dev->ops->set_led_id(h, HNAE_LED_OFF); + case ETHTOOL_ID_INACTIVE: + return h->dev->ops->set_led_id(h, HNAE_LED_INACTIVE); + default: + return -EINVAL; + } + + return 0; +} + +/** + * hns_get_regs - get net device register + * @dev: net device + * @cmd: ethtool cmd + * @date: register data + */ +void hns_get_regs(struct net_device *net_dev, struct ethtool_regs *cmd, + void *data) +{ + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_ae_ops *ops; + + assert(priv || priv->ae_handle); + + ops = priv->ae_handle->dev->ops; + + cmd->version = HNS_CHIP_VERSION; + if (!ops->get_regs) { + netdev_err(net_dev, "ops->get_regs is null!\n"); + return; + } + ops->get_regs(priv->ae_handle, data); +} + +/** + * nic_get_regs_len - get total register len. + * @dev: net device + * + * Return total register len. + */ +static int hns_get_regs_len(struct net_device *net_dev) +{ + u32 reg_num; + struct hns_nic_priv *priv = netdev_priv(net_dev); + struct hnae_ae_ops *ops; + + assert(priv || priv->ae_handle); + + ops = priv->ae_handle->dev->ops; + if (!ops->get_regs_len) { + netdev_err(net_dev, "ops->get_regs_len is null!\n"); + return -EOPNOTSUPP; + } + + reg_num = ops->get_regs_len(priv->ae_handle); + if (reg_num > 0) + return reg_num * sizeof(u32); + else + return reg_num; /* error code */ +} + +/** + * hns_nic_nway_reset - nway reset + * @dev: net device + * + * Return 0 on success, negative on failure + */ +static int hns_nic_nway_reset(struct net_device *netdev) +{ + int ret = 0; + struct hns_nic_priv *priv = netdev_priv(netdev); + struct phy_device *phy = priv->phy; + + if (netif_running(netdev)) { + if (phy) + ret = genphy_restart_aneg(phy); + } + + return ret; +} + +static struct ethtool_ops hns_ethtool_ops = { + .get_drvinfo = hns_nic_get_drvinfo, + .get_link = hns_nic_get_link, + .get_settings = hns_nic_get_settings, + .set_settings = hns_nic_set_settings, + .get_ringparam = hns_get_ringparam, + .get_pauseparam = hns_get_pauseparam, + .set_pauseparam = hns_set_pauseparam, + .get_coalesce = hns_get_coalesce, + .set_coalesce = hns_set_coalesce, + .get_channels = hns_get_channels, + .self_test = hns_nic_self_test, + .get_strings = hns_get_strings, + .get_sset_count = hns_get_sset_count, + .get_ethtool_stats = hns_get_ethtool_stats, + .set_phys_id = hns_set_phys_id, + .get_regs_len = hns_get_regs_len, + .get_regs = hns_get_regs, + .nway_reset = hns_nic_nway_reset, +}; + +void hns_ethtool_set_ops(struct net_device *ndev) +{ + ndev->ethtool_ops = &hns_ethtool_ops; +} |
