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-rw-r--r--drivers/net/ethernet/netronome/nfp/Makefile1
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_main.c7
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net.h9
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_common.c125
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c13
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_main.c67
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h1
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c7
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h24
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c89
10 files changed, 265 insertions, 78 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/Makefile b/drivers/net/ethernet/netronome/nfp/Makefile
index 4a5d13ef92a4..4b15f0f496aa 100644
--- a/drivers/net/ethernet/netronome/nfp/Makefile
+++ b/drivers/net/ethernet/netronome/nfp/Makefile
@@ -9,6 +9,7 @@ nfp-objs := \
nfpcore/nfp_mutex.o \
nfpcore/nfp_nffw.o \
nfpcore/nfp_nsp.o \
+ nfpcore/nfp_nsp_cmds.o \
nfpcore/nfp_nsp_eth.o \
nfpcore/nfp_resource.o \
nfpcore/nfp_rtsym.o \
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.c b/drivers/net/ethernet/netronome/nfp/nfp_main.c
index bea2a1a6c211..dde35dae35c5 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_main.c
@@ -253,6 +253,7 @@ exit_release_fw:
static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
{
+ struct nfp_nsp_identify *nspi;
struct nfp_nsp *nsp;
int err;
@@ -269,6 +270,12 @@ static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp);
+ nspi = __nfp_nsp_identify(nsp);
+ if (nspi) {
+ dev_info(&pdev->dev, "BSP: %s\n", nspi->version);
+ kfree(nspi);
+ }
+
err = nfp_fw_load(pdev, pf, nsp);
if (err < 0) {
kfree(pf->eth_tbl);
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h
index 052db9208fbb..8f20fdef0754 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h
@@ -284,6 +284,12 @@ struct nfp_net_rx_desc {
#define NFP_NET_META_FIELD_MASK GENMASK(NFP_NET_META_FIELD_SIZE - 1, 0)
+struct nfp_meta_parsed {
+ u32 hash_type;
+ u32 hash;
+ u32 mark;
+};
+
struct nfp_net_rx_hash {
__be32 hash_type;
__be32 hash;
@@ -813,7 +819,8 @@ struct nfp_net_dp *nfp_net_clone_dp(struct nfp_net *nn);
int nfp_net_ring_reconfig(struct nfp_net *nn, struct nfp_net_dp *new);
bool nfp_net_link_changed_read_clear(struct nfp_net *nn);
-void nfp_net_refresh_port_config(struct nfp_net *nn);
+int nfp_net_refresh_eth_port(struct nfp_net *nn);
+void nfp_net_refresh_port_table(struct nfp_net *nn);
#ifdef CONFIG_NFP_DEBUG
void nfp_net_debugfs_create(void);
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index e2197160e4dc..8a9b74305493 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -87,16 +87,31 @@ void nfp_net_get_fw_version(struct nfp_net_fw_version *fw_ver,
static dma_addr_t nfp_net_dma_map_rx(struct nfp_net_dp *dp, void *frag)
{
- return dma_map_single(dp->dev, frag + NFP_NET_RX_BUF_HEADROOM,
- dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA,
- dp->rx_dma_dir);
+ return dma_map_single_attrs(dp->dev, frag + NFP_NET_RX_BUF_HEADROOM,
+ dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA,
+ dp->rx_dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
+}
+
+static void
+nfp_net_dma_sync_dev_rx(const struct nfp_net_dp *dp, dma_addr_t dma_addr)
+{
+ dma_sync_single_for_device(dp->dev, dma_addr,
+ dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA,
+ dp->rx_dma_dir);
}
static void nfp_net_dma_unmap_rx(struct nfp_net_dp *dp, dma_addr_t dma_addr)
{
- dma_unmap_single(dp->dev, dma_addr,
- dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA,
- dp->rx_dma_dir);
+ dma_unmap_single_attrs(dp->dev, dma_addr,
+ dp->fl_bufsz - NFP_NET_RX_BUF_NON_DATA,
+ dp->rx_dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
+}
+
+static void nfp_net_dma_sync_cpu_rx(struct nfp_net_dp *dp, dma_addr_t dma_addr,
+ unsigned int len)
+{
+ dma_sync_single_for_cpu(dp->dev, dma_addr - NFP_NET_RX_BUF_HEADROOM,
+ len, dp->rx_dma_dir);
}
/* Firmware reconfig
@@ -1208,6 +1223,8 @@ static void nfp_net_rx_give_one(const struct nfp_net_dp *dp,
wr_idx = rx_ring->wr_p & (rx_ring->cnt - 1);
+ nfp_net_dma_sync_dev_rx(dp, dma_addr);
+
/* Stash SKB and DMA address away */
rx_ring->rxbufs[wr_idx].frag = frag;
rx_ring->rxbufs[wr_idx].dma_addr = dma_addr;
@@ -1385,8 +1402,9 @@ static void nfp_net_rx_csum(struct nfp_net_dp *dp,
}
}
-static void nfp_net_set_hash(struct net_device *netdev, struct sk_buff *skb,
- unsigned int type, __be32 *hash)
+static void
+nfp_net_set_hash(struct net_device *netdev, struct nfp_meta_parsed *meta,
+ unsigned int type, __be32 *hash)
{
if (!(netdev->features & NETIF_F_RXHASH))
return;
@@ -1395,16 +1413,18 @@ static void nfp_net_set_hash(struct net_device *netdev, struct sk_buff *skb,
case NFP_NET_RSS_IPV4:
case NFP_NET_RSS_IPV6:
case NFP_NET_RSS_IPV6_EX:
- skb_set_hash(skb, get_unaligned_be32(hash), PKT_HASH_TYPE_L3);
+ meta->hash_type = PKT_HASH_TYPE_L3;
break;
default:
- skb_set_hash(skb, get_unaligned_be32(hash), PKT_HASH_TYPE_L4);
+ meta->hash_type = PKT_HASH_TYPE_L4;
break;
}
+
+ meta->hash = get_unaligned_be32(hash);
}
static void
-nfp_net_set_hash_desc(struct net_device *netdev, struct sk_buff *skb,
+nfp_net_set_hash_desc(struct net_device *netdev, struct nfp_meta_parsed *meta,
void *data, struct nfp_net_rx_desc *rxd)
{
struct nfp_net_rx_hash *rx_hash = data;
@@ -1412,12 +1432,12 @@ nfp_net_set_hash_desc(struct net_device *netdev, struct sk_buff *skb,
if (!(rxd->rxd.flags & PCIE_DESC_RX_RSS))
return;
- nfp_net_set_hash(netdev, skb, get_unaligned_be32(&rx_hash->hash_type),
+ nfp_net_set_hash(netdev, meta, get_unaligned_be32(&rx_hash->hash_type),
&rx_hash->hash);
}
static void *
-nfp_net_parse_meta(struct net_device *netdev, struct sk_buff *skb,
+nfp_net_parse_meta(struct net_device *netdev, struct nfp_meta_parsed *meta,
void *data, int meta_len)
{
u32 meta_info;
@@ -1429,13 +1449,13 @@ nfp_net_parse_meta(struct net_device *netdev, struct sk_buff *skb,
switch (meta_info & NFP_NET_META_FIELD_MASK) {
case NFP_NET_META_HASH:
meta_info >>= NFP_NET_META_FIELD_SIZE;
- nfp_net_set_hash(netdev, skb,
+ nfp_net_set_hash(netdev, meta,
meta_info & NFP_NET_META_FIELD_MASK,
(__be32 *)data);
data += 4;
break;
case NFP_NET_META_MARK:
- skb->mark = get_unaligned_be32(data);
+ meta->mark = get_unaligned_be32(data);
data += 4;
break;
default:
@@ -1569,13 +1589,12 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
tx_ring = r_vec->xdp_ring;
while (pkts_polled < budget) {
- unsigned int meta_len, data_len, data_off, pkt_len;
- u8 meta_prepend[NFP_NET_MAX_PREPEND];
+ unsigned int meta_len, data_len, meta_off, pkt_len, pkt_off;
struct nfp_net_rx_buf *rxbuf;
struct nfp_net_rx_desc *rxd;
+ struct nfp_meta_parsed meta;
dma_addr_t new_dma_addr;
void *new_frag;
- u8 *meta;
idx = rx_ring->rd_p & (rx_ring->cnt - 1);
@@ -1588,6 +1607,8 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
*/
dma_rmb();
+ memset(&meta, 0, sizeof(meta));
+
rx_ring->rd_p++;
pkts_polled++;
@@ -1608,11 +1629,12 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
data_len = le16_to_cpu(rxd->rxd.data_len);
pkt_len = data_len - meta_len;
+ pkt_off = NFP_NET_RX_BUF_HEADROOM + dp->rx_dma_off;
if (dp->rx_offset == NFP_NET_CFG_RX_OFFSET_DYNAMIC)
- data_off = NFP_NET_RX_BUF_HEADROOM + meta_len;
+ pkt_off += meta_len;
else
- data_off = NFP_NET_RX_BUF_HEADROOM + dp->rx_offset;
- data_off += dp->rx_dma_off;
+ pkt_off += dp->rx_offset;
+ meta_off = pkt_off - meta_len;
/* Stats update */
u64_stats_update_begin(&r_vec->rx_sync);
@@ -1620,9 +1642,6 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
r_vec->rx_bytes += pkt_len;
u64_stats_update_end(&r_vec->rx_sync);
- /* Pointer to start of metadata */
- meta = rxbuf->frag + data_off - meta_len;
-
if (unlikely(meta_len > NFP_NET_MAX_PREPEND ||
(dp->rx_offset && meta_len > dp->rx_offset))) {
nn_dp_warn(dp, "oversized RX packet metadata %u\n",
@@ -1631,6 +1650,26 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
continue;
}
+ nfp_net_dma_sync_cpu_rx(dp, rxbuf->dma_addr + meta_off,
+ data_len);
+
+ if (!dp->chained_metadata_format) {
+ nfp_net_set_hash_desc(dp->netdev, &meta,
+ rxbuf->frag + meta_off, rxd);
+ } else if (meta_len) {
+ void *end;
+
+ end = nfp_net_parse_meta(dp->netdev, &meta,
+ rxbuf->frag + meta_off,
+ meta_len);
+ if (unlikely(end != rxbuf->frag + pkt_off)) {
+ nn_dp_warn(dp, "invalid RX packet metadata\n");
+ nfp_net_rx_drop(dp, r_vec, rx_ring, rxbuf,
+ NULL);
+ continue;
+ }
+ }
+
if (xdp_prog && !(rxd->rxd.flags & PCIE_DESC_RX_BPF &&
dp->bpf_offload_xdp)) {
unsigned int dma_off;
@@ -1638,24 +1677,14 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
int act;
hard_start = rxbuf->frag + NFP_NET_RX_BUF_HEADROOM;
- dma_off = data_off - NFP_NET_RX_BUF_HEADROOM;
- dma_sync_single_for_cpu(dp->dev, rxbuf->dma_addr,
- dma_off + pkt_len,
- DMA_BIDIRECTIONAL);
-
- /* Move prepend out of the way */
- if (xdp_prog->xdp_adjust_head) {
- memcpy(meta_prepend, meta, meta_len);
- meta = meta_prepend;
- }
act = nfp_net_run_xdp(xdp_prog, rxbuf->frag, hard_start,
- &data_off, &pkt_len);
+ &pkt_off, &pkt_len);
switch (act) {
case XDP_PASS:
break;
case XDP_TX:
- dma_off = data_off - NFP_NET_RX_BUF_HEADROOM;
+ dma_off = pkt_off - NFP_NET_RX_BUF_HEADROOM;
if (unlikely(!nfp_net_tx_xdp_buf(dp, rx_ring,
tx_ring, rxbuf,
dma_off,
@@ -1689,22 +1718,11 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
nfp_net_rx_give_one(dp, rx_ring, new_frag, new_dma_addr);
- skb_reserve(skb, data_off);
+ skb_reserve(skb, pkt_off);
skb_put(skb, pkt_len);
- if (!dp->chained_metadata_format) {
- nfp_net_set_hash_desc(dp->netdev, skb, meta, rxd);
- } else if (meta_len) {
- void *end;
-
- end = nfp_net_parse_meta(dp->netdev, skb, meta,
- meta_len);
- if (unlikely(end != meta + meta_len)) {
- nn_dp_warn(dp, "invalid RX packet metadata\n");
- nfp_net_rx_drop(dp, r_vec, rx_ring, NULL, skb);
- continue;
- }
- }
+ skb->mark = meta.mark;
+ skb_set_hash(skb, meta.hash, meta.hash_type);
skb_record_rx_queue(skb, rx_ring->idx);
skb->protocol = eth_type_trans(skb, dp->netdev);
@@ -2147,7 +2165,7 @@ nfp_net_tx_ring_hw_cfg_write(struct nfp_net *nn,
*/
static int nfp_net_set_config_and_enable(struct nfp_net *nn)
{
- u32 new_ctrl, update = 0;
+ u32 bufsz, new_ctrl, update = 0;
unsigned int r;
int err;
@@ -2181,8 +2199,9 @@ static int nfp_net_set_config_and_enable(struct nfp_net *nn)
nfp_net_write_mac_addr(nn);
nn_writel(nn, NFP_NET_CFG_MTU, nn->dp.netdev->mtu);
- nn_writel(nn, NFP_NET_CFG_FLBUFSZ,
- nn->dp.fl_bufsz - NFP_NET_RX_BUF_NON_DATA);
+
+ bufsz = nn->dp.fl_bufsz - nn->dp.rx_dma_off - NFP_NET_RX_BUF_NON_DATA;
+ nn_writel(nn, NFP_NET_CFG_FLBUFSZ, bufsz);
/* Enable device */
new_ctrl |= NFP_NET_CFG_CTRL_ENABLE;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index 3328041ec290..6e27d1281425 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -211,10 +211,15 @@ nfp_net_get_link_ksettings(struct net_device *netdev,
return 0;
/* Use link speed from ETH table if available, otherwise try the BAR */
- if (nn->eth_port && nfp_net_link_changed_read_clear(nn))
- nfp_net_refresh_port_config(nn);
- /* Separate if - on FW error the port could've disappeared from table */
if (nn->eth_port) {
+ int err;
+
+ if (nfp_net_link_changed_read_clear(nn)) {
+ err = nfp_net_refresh_eth_port(nn);
+ if (err)
+ return err;
+ }
+
cmd->base.port = nn->eth_port->port_type;
cmd->base.speed = nn->eth_port->speed;
cmd->base.duplex = DUPLEX_FULL;
@@ -273,7 +278,7 @@ nfp_net_set_link_ksettings(struct net_device *netdev,
if (err > 0)
return 0; /* no change */
- nfp_net_refresh_port_config(nn);
+ nfp_net_refresh_port_table(nn);
return err;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
index 4c6863a072d3..8cb87cbe1120 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
@@ -176,13 +176,13 @@ nfp_net_get_mac_addr(struct nfp_net *nn, struct nfp_cpp *cpp, unsigned int id)
}
static struct nfp_eth_table_port *
-nfp_net_find_port(struct nfp_pf *pf, unsigned int id)
+nfp_net_find_port(struct nfp_eth_table *eth_tbl, unsigned int id)
{
int i;
- for (i = 0; pf->eth_tbl && i < pf->eth_tbl->count; i++)
- if (pf->eth_tbl->ports[i].eth_index == id)
- return &pf->eth_tbl->ports[i];
+ for (i = 0; eth_tbl && i < eth_tbl->count; i++)
+ if (eth_tbl->ports[i].eth_index == id)
+ return &eth_tbl->ports[i];
return NULL;
}
@@ -367,7 +367,7 @@ nfp_net_pf_alloc_netdevs(struct nfp_pf *pf, void __iomem *ctrl_bar,
prev_tx_base = tgt_tx_base;
prev_rx_base = tgt_rx_base;
- eth_port = nfp_net_find_port(pf, i);
+ eth_port = nfp_net_find_port(pf->eth_tbl, i);
if (eth_port && eth_port->override_changed) {
nfp_warn(pf->cpp, "Config changed for port #%d, reboot required before port will be operational\n", i);
} else {
@@ -485,6 +485,7 @@ static void nfp_net_refresh_netdevs(struct work_struct *work)
{
struct nfp_pf *pf = container_of(work, struct nfp_pf,
port_refresh_work);
+ struct nfp_eth_table *eth_table;
struct nfp_net *nn, *next;
mutex_lock(&pf->port_lock);
@@ -493,6 +494,27 @@ static void nfp_net_refresh_netdevs(struct work_struct *work)
if (list_empty(&pf->ports))
goto out;
+ list_for_each_entry(nn, &pf->ports, port_list)
+ nfp_net_link_changed_read_clear(nn);
+
+ eth_table = nfp_eth_read_ports(pf->cpp);
+ if (!eth_table) {
+ nfp_err(pf->cpp, "Error refreshing port config!\n");
+ goto out;
+ }
+
+ rtnl_lock();
+ list_for_each_entry(nn, &pf->ports, port_list) {
+ if (!nn->eth_port)
+ continue;
+ nn->eth_port = nfp_net_find_port(eth_table,
+ nn->eth_port->eth_index);
+ }
+ rtnl_unlock();
+
+ kfree(pf->eth_tbl);
+ pf->eth_tbl = eth_table;
+
list_for_each_entry_safe(nn, next, &pf->ports, port_list) {
if (!nn->eth_port) {
nfp_warn(pf->cpp, "Warning: port not present after reconfig\n");
@@ -517,31 +539,36 @@ out:
mutex_unlock(&pf->port_lock);
}
-void nfp_net_refresh_port_config(struct nfp_net *nn)
+void nfp_net_refresh_port_table(struct nfp_net *nn)
{
struct nfp_pf *pf = pci_get_drvdata(nn->pdev);
- struct nfp_eth_table *old_table;
- ASSERT_RTNL();
+ schedule_work(&pf->port_refresh_work);
+}
- old_table = pf->eth_tbl;
+int nfp_net_refresh_eth_port(struct nfp_net *nn)
+{
+ struct nfp_eth_table_port *eth_port;
+ struct nfp_eth_table *eth_table;
- list_for_each_entry(nn, &pf->ports, port_list)
- nfp_net_link_changed_read_clear(nn);
+ eth_table = nfp_eth_read_ports(nn->cpp);
+ if (!eth_table) {
+ nn_err(nn, "Error refreshing port state table!\n");
+ return -EIO;
+ }
- pf->eth_tbl = nfp_eth_read_ports(pf->cpp);
- if (!pf->eth_tbl) {
- pf->eth_tbl = old_table;
- nfp_err(pf->cpp, "Error refreshing port config!\n");
- return;
+ eth_port = nfp_net_find_port(eth_table, nn->eth_port->eth_index);
+ if (!eth_port) {
+ nn_err(nn, "Error finding state of the port!\n");
+ kfree(eth_table);
+ return -EIO;
}
- list_for_each_entry(nn, &pf->ports, port_list)
- nn->eth_port = nfp_net_find_port(pf, nn->eth_port->eth_index);
+ memcpy(nn->eth_port, eth_port, sizeof(*eth_port));
- kfree(old_table);
+ kfree(eth_table);
- schedule_work(&pf->port_refresh_work);
+ return 0;
}
/*
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
index 8afef7593f13..4df2ce261b3f 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
@@ -63,6 +63,7 @@ void nfp_nsp_config_clear_state(struct nfp_nsp *state);
int nfp_nsp_read_eth_table(struct nfp_nsp *state, void *buf, unsigned int size);
int nfp_nsp_write_eth_table(struct nfp_nsp *state,
const void *buf, unsigned int size);
+int nfp_nsp_read_identify(struct nfp_nsp *state, void *buf, unsigned int size);
/* Implemented in nfp_resource.c */
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
index 4635f42e15b0..61797c98f5fe 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
@@ -93,6 +93,7 @@ enum nfp_nsp_cmd {
SPCODE_FW_LOAD = 6, /* Load fw from buffer, len in option */
SPCODE_ETH_RESCAN = 7, /* Rescan ETHs, write ETH_TABLE to buf */
SPCODE_ETH_CONTROL = 8, /* Update media config from buffer */
+ SPCODE_NSP_IDENTIFY = 13, /* Read NSP version */
__MAX_SPCODE,
};
@@ -493,3 +494,9 @@ int nfp_nsp_write_eth_table(struct nfp_nsp *state,
return nfp_nsp_command_buf(state, SPCODE_ETH_CONTROL, size, buf, size,
NULL, 0);
}
+
+int nfp_nsp_read_identify(struct nfp_nsp *state, void *buf, unsigned int size)
+{
+ return nfp_nsp_command_buf(state, SPCODE_NSP_IDENTIFY, size, NULL, 0,
+ buf, size);
+}
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
index 7d34ff145fd7..36b21e4dc56d 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
@@ -147,4 +147,28 @@ int __nfp_eth_set_aneg(struct nfp_nsp *nsp, enum nfp_eth_aneg mode);
int __nfp_eth_set_speed(struct nfp_nsp *nsp, unsigned int speed);
int __nfp_eth_set_split(struct nfp_nsp *nsp, unsigned int lanes);
+/**
+ * struct nfp_nsp_identify - NSP static information
+ * @version: opaque version string
+ * @flags: version flags
+ * @br_primary: branch id of primary bootloader
+ * @br_secondary: branch id of secondary bootloader
+ * @br_nsp: branch id of NSP
+ * @primary: version of primarary bootloader
+ * @secondary: version id of secondary bootloader
+ * @nsp: version id of NSP
+ */
+struct nfp_nsp_identify {
+ char version[40];
+ u8 flags;
+ u8 br_primary;
+ u8 br_secondary;
+ u8 br_nsp;
+ u16 primary;
+ u16 secondary;
+ u16 nsp;
+};
+
+struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp);
+
#endif
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c
new file mode 100644
index 000000000000..e7a263de3731
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_cmds.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2017 Netronome Systems, Inc.
+ *
+ * This software is dual licensed under the GNU General License Version 2,
+ * June 1991 as shown in the file COPYING in the top-level directory of this
+ * source tree or the BSD 2-Clause License provided below. You have the
+ * option to license this software under the complete terms of either license.
+ *
+ * The BSD 2-Clause License:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include "nfp.h"
+#include "nfp_nsp.h"
+
+struct nsp_identify {
+ u8 version[40];
+ u8 flags;
+ u8 br_primary;
+ u8 br_secondary;
+ u8 br_nsp;
+ __le16 primary;
+ __le16 secondary;
+ __le16 nsp;
+ __le16 reserved;
+};
+
+struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp)
+{
+ struct nfp_nsp_identify *nspi = NULL;
+ struct nsp_identify *ni;
+ int ret;
+
+ if (nfp_nsp_get_abi_ver_minor(nsp) < 15)
+ return NULL;
+
+ ni = kzalloc(sizeof(*ni), GFP_KERNEL);
+ if (!ni)
+ return NULL;
+
+ ret = nfp_nsp_read_identify(nsp, ni, sizeof(*ni));
+ if (ret < 0) {
+ nfp_err(nfp_nsp_cpp(nsp), "reading bsp version failed %d\n",
+ ret);
+ goto exit_free;
+ }
+
+ nspi = kzalloc(sizeof(*nspi), GFP_KERNEL);
+ if (!nspi)
+ goto exit_free;
+
+ memcpy(nspi->version, ni->version, sizeof(nspi->version));
+ nspi->version[sizeof(nspi->version) - 1] = '\0';
+ nspi->flags = ni->flags;
+ nspi->br_primary = ni->br_primary;
+ nspi->br_secondary = ni->br_secondary;
+ nspi->br_nsp = ni->br_nsp;
+ nspi->primary = le16_to_cpu(ni->primary);
+ nspi->secondary = le16_to_cpu(ni->secondary);
+ nspi->nsp = le16_to_cpu(ni->nsp);
+
+exit_free:
+ kfree(ni);
+ return nspi;
+}
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