diff options
Diffstat (limited to 'drivers/net/ethernet/netronome')
4 files changed, 62 insertions, 37 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.h b/drivers/net/ethernet/netronome/nfp/nfp_main.h index 39105d0435e9..bb15a5724bf7 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_main.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_main.h @@ -64,7 +64,8 @@ struct nfp_eth_table; * @fw_loaded: Is the firmware loaded? * @eth_tbl: NSP ETH table * @ddir: Per-device debugfs directory - * @num_ports: Number of adapter ports + * @num_ports: Number of adapter ports app firmware supports + * @num_netdevs: Number of netdevs spawned * @ports: Linked list of port structures (struct nfp_net) */ struct nfp_pf { @@ -88,6 +89,8 @@ struct nfp_pf { struct dentry *ddir; unsigned int num_ports; + unsigned int num_netdevs; + struct list_head ports; }; diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c index 2025cb7c6d90..1644954f52cd 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c @@ -129,14 +129,29 @@ err_area: return (u8 __iomem *)ERR_PTR(err); } +/** + * nfp_net_get_mac_addr() - Get the MAC address. + * @nn: NFP Network structure + * @cpp: NFP CPP handle + * @id: NFP port id + * + * First try to get the MAC address from NSP ETH table. If that + * fails try HWInfo. As a last resort generate a random address. + */ static void -nfp_net_get_mac_addr_hwinfo(struct nfp_net_dp *dp, struct nfp_cpp *cpp, - unsigned int id) +nfp_net_get_mac_addr(struct nfp_net *nn, struct nfp_cpp *cpp, unsigned int id) { + struct nfp_net_dp *dp = &nn->dp; u8 mac_addr[ETH_ALEN]; const char *mac_str; char name[32]; + if (nn->eth_port) { + ether_addr_copy(dp->netdev->dev_addr, nn->eth_port->mac_addr); + ether_addr_copy(dp->netdev->perm_addr, nn->eth_port->mac_addr); + return; + } + snprintf(name, sizeof(name), "eth%d.mac", id); mac_str = nfp_hwinfo_lookup(cpp, name); @@ -159,32 +174,16 @@ nfp_net_get_mac_addr_hwinfo(struct nfp_net_dp *dp, struct nfp_cpp *cpp, ether_addr_copy(dp->netdev->perm_addr, mac_addr); } -/** - * nfp_net_get_mac_addr() - Get the MAC address. - * @nn: NFP Network structure - * @pf: NFP PF device structure - * @id: NFP port id - * - * First try to get the MAC address from NSP ETH table. If that - * fails try HWInfo. As a last resort generate a random address. - */ -static void -nfp_net_get_mac_addr(struct nfp_net *nn, struct nfp_pf *pf, unsigned int id) +static struct nfp_eth_table_port * +nfp_net_find_port(struct nfp_pf *pf, 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) { - const u8 *mac_addr = pf->eth_tbl->ports[i].mac_addr; - - nn->eth_port = &pf->eth_tbl->ports[i]; + if (pf->eth_tbl->ports[i].eth_index == id) + return &pf->eth_tbl->ports[i]; - ether_addr_copy(nn->dp.netdev->dev_addr, mac_addr); - ether_addr_copy(nn->dp.netdev->perm_addr, mac_addr); - return; - } - - nfp_net_get_mac_addr_hwinfo(&nn->dp, pf->cpp, id); + return NULL; } static unsigned int nfp_net_pf_get_num_ports(struct nfp_pf *pf) @@ -283,6 +282,7 @@ static void nfp_net_pf_free_netdevs(struct nfp_pf *pf) while (!list_empty(&pf->ports)) { nn = list_first_entry(&pf->ports, struct nfp_net, port_list); list_del(&nn->port_list); + pf->num_netdevs--; nfp_net_netdev_free(nn); } @@ -291,7 +291,8 @@ static void nfp_net_pf_free_netdevs(struct nfp_pf *pf) static struct nfp_net * nfp_net_pf_alloc_port_netdev(struct nfp_pf *pf, void __iomem *ctrl_bar, void __iomem *tx_bar, void __iomem *rx_bar, - int stride, struct nfp_net_fw_version *fw_ver) + int stride, struct nfp_net_fw_version *fw_ver, + struct nfp_eth_table_port *eth_port) { u32 n_tx_rings, n_rx_rings; struct nfp_net *nn; @@ -312,6 +313,7 @@ nfp_net_pf_alloc_port_netdev(struct nfp_pf *pf, void __iomem *ctrl_bar, nn->dp.is_vf = 0; nn->stride_rx = stride; nn->stride_tx = stride; + nn->eth_port = eth_port; return nn; } @@ -323,7 +325,7 @@ nfp_net_pf_init_port_netdev(struct nfp_pf *pf, struct nfp_net *nn, int err; /* Get MAC address */ - nfp_net_get_mac_addr(nn, pf, id); + nfp_net_get_mac_addr(nn, pf->cpp, id); /* Get ME clock frequency from ctrl BAR * XXX for now frequency is hardcoded until we figure out how @@ -348,6 +350,7 @@ nfp_net_pf_alloc_netdevs(struct nfp_pf *pf, void __iomem *ctrl_bar, int stride, struct nfp_net_fw_version *fw_ver) { u32 prev_tx_base, prev_rx_base, tgt_tx_base, tgt_rx_base; + struct nfp_eth_table_port *eth_port; struct nfp_net *nn; unsigned int i; int err; @@ -363,17 +366,27 @@ 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; - nn = nfp_net_pf_alloc_port_netdev(pf, ctrl_bar, tx_bar, rx_bar, - stride, fw_ver); - if (IS_ERR(nn)) { - err = PTR_ERR(nn); - goto err_free_prev; + eth_port = nfp_net_find_port(pf, 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 { + nn = nfp_net_pf_alloc_port_netdev(pf, ctrl_bar, tx_bar, + rx_bar, stride, + fw_ver, eth_port); + if (IS_ERR(nn)) { + err = PTR_ERR(nn); + goto err_free_prev; + } + list_add_tail(&nn->port_list, &pf->ports); + pf->num_netdevs++; } - list_add_tail(&nn->port_list, &pf->ports); ctrl_bar += NFP_PF_CSR_SLICE_SIZE; } + if (list_empty(&pf->ports)) + return -ENODEV; + return 0; err_free_prev: @@ -409,7 +422,7 @@ nfp_net_pf_spawn_netdevs(struct nfp_pf *pf, } num_irqs = nfp_net_irqs_alloc(pf->pdev, pf->irq_entries, - NFP_NET_MIN_PORT_IRQS * pf->num_ports, + NFP_NET_MIN_PORT_IRQS * pf->num_netdevs, wanted_irqs); if (!num_irqs) { nn_warn(nn, "Unable to allocate MSI-X Vectors. Exiting\n"); @@ -419,7 +432,7 @@ nfp_net_pf_spawn_netdevs(struct nfp_pf *pf, /* Distribute IRQs to ports */ irqs_left = num_irqs; - ports_left = pf->num_ports; + ports_left = pf->num_netdevs; list_for_each_entry(nn, &pf->ports, port_list) { unsigned int n; diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c index 38bd80077e33..932772fbd27e 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c @@ -62,6 +62,7 @@ #define NSP_ETH_STATE_TX_ENABLED BIT_ULL(2) #define NSP_ETH_STATE_RX_ENABLED BIT_ULL(3) #define NSP_ETH_STATE_RATE GENMASK_ULL(11, 8) +#define NSP_ETH_STATE_OVRD_CHNG BIT_ULL(22) #define NSP_ETH_CTRL_ENABLED BIT_ULL(1) #define NSP_ETH_CTRL_TX_ENABLED BIT_ULL(2) @@ -110,8 +111,8 @@ static void nfp_eth_copy_mac_reverse(u8 *dst, const u8 *src) } static void -nfp_eth_port_translate(const struct eth_table_entry *src, unsigned int index, - struct nfp_eth_table_port *dst) +nfp_eth_port_translate(struct nfp_nsp *nsp, const struct eth_table_entry *src, + unsigned int index, struct nfp_eth_table_port *dst) { unsigned int rate; u64 port, state; @@ -136,6 +137,11 @@ nfp_eth_port_translate(const struct eth_table_entry *src, unsigned int index, dst->label_port = FIELD_GET(NSP_ETH_PORT_PHYLABEL, port); dst->label_subport = FIELD_GET(NSP_ETH_PORT_LABEL, port); + + if (nfp_nsp_get_abi_ver_minor(nsp) < 17) + return; + + dst->override_changed = FIELD_GET(NSP_ETH_STATE_OVRD_CHNG, state); } static void @@ -225,7 +231,7 @@ __nfp_eth_read_ports(struct nfp_cpp *cpp, struct nfp_nsp *nsp) table->count = cnt; for (i = 0, j = 0; i < NSP_ETH_MAX_COUNT; i++) if (entries[i].port & NSP_ETH_PORT_LANES_MASK) - nfp_eth_port_translate(&entries[i], i, + nfp_eth_port_translate(nsp, &entries[i], i, &table->ports[j++]); nfp_eth_mark_split_ports(cpp, table); diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.h index 325e841ca90a..6838741fadd7 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.h +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.h @@ -54,6 +54,7 @@ * @enabled: is enabled? * @tx_enabled: is TX enabled? * @rx_enabled: is RX enabled? + * @override_changed: is media reconfig pending? * * @is_split: is interface part of a split port */ @@ -76,6 +77,8 @@ struct nfp_eth_table { bool tx_enabled; bool rx_enabled; + bool override_changed; + /* Computed fields */ bool is_split; } ports[0]; |